From eec8e82e0a53f77804f6ee7eb7ccee8f12ba5c86 Mon Sep 17 00:00:00 2001 From: Steve Glendinning Date: Thu, 19 Feb 2015 18:47:12 +0000 Subject: [PATCH 001/165] smsx95xx: fix crimes against truesize smsc95xx is adjusting truesize when it shouldn't, and following a recent patch from Eric this is now triggering warnings. This patch stops smsc95xx from changing truesize. Signed-off-by: Steve Glendinning --- drivers/net/usb/smsc95xx.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index 5f19fb0f025d9449d0ba20958610e0d1f083f032..ed28f1c3e1d0f2559a62a1c28993794497730c5d 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -82,6 +82,10 @@ static bool turbo_mode = true; module_param(turbo_mode, bool, 0644); MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction"); +static bool truesize_mode = false; +module_param(truesize_mode, bool, 0644); +MODULE_PARM_DESC(truesize_mode, "Report larger truesize value"); + static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index, u32 *data, int in_pm) { @@ -1951,7 +1955,8 @@ static int smsc95xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb) if (dev->net->features & NETIF_F_RXCSUM) smsc95xx_rx_csum_offload(skb); skb_trim(skb, skb->len - 4); /* remove fcs */ - skb->truesize = size + sizeof(struct sk_buff); + if (truesize_mode) + skb->truesize = size + sizeof(struct sk_buff); return 1; } @@ -1969,7 +1974,8 @@ static int smsc95xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb) if (dev->net->features & NETIF_F_RXCSUM) smsc95xx_rx_csum_offload(ax_skb); skb_trim(ax_skb, ax_skb->len - 4); /* remove fcs */ - ax_skb->truesize = size + sizeof(struct sk_buff); + if (truesize_mode) + ax_skb->truesize = size + sizeof(struct sk_buff); usbnet_skb_return(dev, ax_skb); } From 4d6cc78075b1d8ec8459a0e43cadc2b48f236fa5 Mon Sep 17 00:00:00 2001 From: Sam Nazarko Date: Fri, 1 Apr 2016 17:27:21 +0100 Subject: [PATCH 002/165] smsc95xx: Experimental: Enable turbo_mode and packetsize=2560 by default See: http://forum.kodi.tv/showthread.php?tid=285288 --- drivers/net/usb/smsc95xx.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index ed28f1c3e1d0f2559a62a1c28993794497730c5d..f758e122c65685799d4aeeb1c3e6ca81df0d7980 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -86,6 +86,10 @@ static bool truesize_mode = false; module_param(truesize_mode, bool, 0644); MODULE_PARM_DESC(truesize_mode, "Report larger truesize value"); +static int packetsize = 2560; +module_param(packetsize, int, 0644); +MODULE_PARM_DESC(packetsize, "Override the RX URB packet size"); + static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index, u32 *data, int in_pm) { @@ -1106,13 +1110,13 @@ static int smsc95xx_reset(struct usbnet *dev) if (!turbo_mode) { burst_cap = 0; - dev->rx_urb_size = MAX_SINGLE_PACKET_SIZE; + dev->rx_urb_size = packetsize ? packetsize : MAX_SINGLE_PACKET_SIZE; } else if (dev->udev->speed == USB_SPEED_HIGH) { - burst_cap = DEFAULT_HS_BURST_CAP_SIZE / HS_USB_PKT_SIZE; - dev->rx_urb_size = DEFAULT_HS_BURST_CAP_SIZE; + dev->rx_urb_size = packetsize ? packetsize : DEFAULT_HS_BURST_CAP_SIZE; + burst_cap = dev->rx_urb_size / HS_USB_PKT_SIZE; } else { - burst_cap = DEFAULT_FS_BURST_CAP_SIZE / FS_USB_PKT_SIZE; - dev->rx_urb_size = DEFAULT_FS_BURST_CAP_SIZE; + dev->rx_urb_size = packetsize ? packetsize : DEFAULT_FS_BURST_CAP_SIZE; + burst_cap = dev->rx_urb_size / FS_USB_PKT_SIZE; } netif_dbg(dev, ifup, dev->net, "rx_urb_size=%ld\n", From dd6af616b01ce5699d358823f650d0de1dfbcef8 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Tue, 26 Mar 2013 17:26:38 +0000 Subject: [PATCH 003/165] Allow mac address to be set in smsc95xx Signed-off-by: popcornmix --- drivers/net/usb/smsc95xx.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index f758e122c65685799d4aeeb1c3e6ca81df0d7980..f6661e388f6e801c1b88e48a3b71407bd70cf56e 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -60,6 +60,7 @@ #define SUSPEND_SUSPEND3 (0x08) #define SUSPEND_ALLMODES (SUSPEND_SUSPEND0 | SUSPEND_SUSPEND1 | \ SUSPEND_SUSPEND2 | SUSPEND_SUSPEND3) +#define MAC_ADDR_LEN (6) #define CARRIER_CHECK_DELAY (2 * HZ) @@ -90,6 +91,10 @@ static int packetsize = 2560; module_param(packetsize, int, 0644); MODULE_PARM_DESC(packetsize, "Override the RX URB packet size"); +static char *macaddr = ":"; +module_param(macaddr, charp, 0); +MODULE_PARM_DESC(macaddr, "MAC address"); + static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index, u32 *data, int in_pm) { @@ -918,6 +923,53 @@ static int smsc95xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL); } +/* Check the macaddr module parameter for a MAC address */ +static int smsc95xx_is_macaddr_param(struct usbnet *dev, u8 *dev_mac) +{ + int i, j, got_num, num; + u8 mtbl[MAC_ADDR_LEN]; + + if (macaddr[0] == ':') + return 0; + + i = 0; + j = 0; + num = 0; + got_num = 0; + while (j < MAC_ADDR_LEN) { + if (macaddr[i] && macaddr[i] != ':') { + got_num++; + if ('0' <= macaddr[i] && macaddr[i] <= '9') + num = num * 16 + macaddr[i] - '0'; + else if ('A' <= macaddr[i] && macaddr[i] <= 'F') + num = num * 16 + 10 + macaddr[i] - 'A'; + else if ('a' <= macaddr[i] && macaddr[i] <= 'f') + num = num * 16 + 10 + macaddr[i] - 'a'; + else + break; + i++; + } else if (got_num == 2) { + mtbl[j++] = (u8) num; + num = 0; + got_num = 0; + i++; + } else { + break; + } + } + + if (j == MAC_ADDR_LEN) { + netif_dbg(dev, ifup, dev->net, "Overriding MAC address with: " + "%02x:%02x:%02x:%02x:%02x:%02x\n", mtbl[0], mtbl[1], mtbl[2], + mtbl[3], mtbl[4], mtbl[5]); + for (i = 0; i < MAC_ADDR_LEN; i++) + dev_mac[i] = mtbl[i]; + return 1; + } else { + return 0; + } +} + static void smsc95xx_init_mac_address(struct usbnet *dev) { const u8 *mac_addr; @@ -939,6 +991,10 @@ static void smsc95xx_init_mac_address(struct usbnet *dev) } } + /* Check module parameters */ + if (smsc95xx_is_macaddr_param(dev, dev->net->dev_addr)) + return; + /* no useful static MAC address found. generate a random one */ eth_hw_addr_random(dev->net); netif_dbg(dev, ifup, dev->net, "MAC address set to eth_random_addr\n"); From ed0782cf4d891b3dc1258345c6350fd06abe4e20 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Fri, 13 Mar 2015 12:43:36 +0000 Subject: [PATCH 004/165] Protect __release_resource against resources without parents Without this patch, removing a device tree overlay can crash here. Signed-off-by: Phil Elwell --- kernel/resource.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/kernel/resource.c b/kernel/resource.c index 9b5f04404152c296af3a96132f27cfc80ffa9af9..f8a9af6e6b915812be2ba2c1c2b4010644bdc882 100644 --- a/kernel/resource.c +++ b/kernel/resource.c @@ -246,6 +246,12 @@ static int __release_resource(struct resource *old, bool release_child) { struct resource *tmp, **p, *chd; + if (!old->parent) { + WARN(old->sibling, "sibling but no parent"); + if (old->sibling) + return -EINVAL; + return 0; + } p = &old->parent->child; for (;;) { tmp = *p; From 2cb589e38b396476f7e52e7f91d11f2845000a3c Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Thu, 18 Dec 2014 16:07:15 -0800 Subject: [PATCH 005/165] mm: Remove the PFN busy warning See commit dae803e165a11bc88ca8dbc07a11077caf97bbcb -- the warning is expected sometimes when using CMA. However, that commit still spams my kernel log with these warnings. Signed-off-by: Eric Anholt --- mm/page_alloc.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index a2019fc9d94df3af9cf2c5ce1a476949c6822efc..5e6e1815923f212f5c1b1d1a213b0b12778997d4 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -7529,8 +7529,6 @@ int alloc_contig_range(unsigned long start, unsigned long end, /* Make sure the range is really isolated. */ if (test_pages_isolated(outer_start, end, false)) { - pr_info("%s: [%lx, %lx) PFNs busy\n", - __func__, outer_start, end); ret = -EBUSY; goto done; } From 100f8ee402a67c4f9bae7712676bbdd437a579b4 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Fri, 4 Dec 2015 17:41:50 +0000 Subject: [PATCH 006/165] irq-bcm2836: Prevent spurious interrupts, and trap them early The old arch-specific IRQ macros included a dsb to ensure the write to clear the mailbox interrupt completed before returning from the interrupt. The BCM2836 irqchip driver needs the same precaution to avoid spurious interrupts. Spurious interrupts are still possible for other reasons, though, so trap them early. --- drivers/irqchip/irq-bcm2836.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/irqchip/irq-bcm2836.c b/drivers/irqchip/irq-bcm2836.c index e7463e3c08143acae3e8cc5682f918c6a0b07ebd..a8db33b50ad9ff83d284fa54fe4d3b65f859df0f 100644 --- a/drivers/irqchip/irq-bcm2836.c +++ b/drivers/irqchip/irq-bcm2836.c @@ -175,6 +175,7 @@ __exception_irq_entry bcm2836_arm_irqchip_handle_irq(struct pt_regs *regs) u32 ipi = ffs(mbox_val) - 1; writel(1 << ipi, mailbox0); + dsb(sy); handle_IPI(ipi, regs); #endif } else if (stat) { From 7d209d07c090d5ba5beef2005ca0f6774cef60d7 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Thu, 9 Feb 2017 14:33:30 +0000 Subject: [PATCH 007/165] irq-bcm2836: Avoid "Invalid trigger warning" Initialise the level for each IRQ to avoid a warning from the arm arch timer code. Signed-off-by: Phil Elwell --- drivers/irqchip/irq-bcm2836.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/irqchip/irq-bcm2836.c b/drivers/irqchip/irq-bcm2836.c index a8db33b50ad9ff83d284fa54fe4d3b65f859df0f..c4e151451cf8c8ebde5225515eac2786d6f61d46 100644 --- a/drivers/irqchip/irq-bcm2836.c +++ b/drivers/irqchip/irq-bcm2836.c @@ -157,7 +157,7 @@ static void bcm2836_arm_irqchip_register_irq(int hwirq, struct irq_chip *chip) irq_set_percpu_devid(irq); irq_set_chip_and_handler(irq, chip, handle_percpu_devid_irq); - irq_set_status_flags(irq, IRQ_NOAUTOEN); + irq_set_status_flags(irq, IRQ_NOAUTOEN | IRQ_TYPE_LEVEL_LOW); } static void From 29d04709a67f6ecd03869b4aae4bb1b1539c873d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= Date: Fri, 12 Jun 2015 19:01:05 +0200 Subject: [PATCH 008/165] irqchip: bcm2835: Add FIQ support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add a duplicate irq range with an offset on the hwirq's so the driver can detect that enable_fiq() is used. Tested with downstream dwc_otg USB controller driver. Signed-off-by: Noralf Trønnes Reviewed-by: Eric Anholt Acked-by: Stephen Warren --- arch/arm/mach-bcm/Kconfig | 1 + drivers/irqchip/irq-bcm2835.c | 51 ++++++++++++++++++++++++++++++++++++++----- 2 files changed, 47 insertions(+), 5 deletions(-) diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig index a0e66d8200c5cf8f2ea592abf870a32800213fa2..4ff30d5278a7ce093c9629d4c25d37e3bbbda752 100644 --- a/arch/arm/mach-bcm/Kconfig +++ b/arch/arm/mach-bcm/Kconfig @@ -152,6 +152,7 @@ config ARCH_BCM2835 select HAVE_ARM_ARCH_TIMER if ARCH_MULTI_V7 select CLKSRC_OF select BCM2835_TIMER + select FIQ select PINCTRL select PINCTRL_BCM2835 help diff --git a/drivers/irqchip/irq-bcm2835.c b/drivers/irqchip/irq-bcm2835.c index 44d7c38dde479d771f3552e914bf8c1c1f5019f7..42ff5e6a8e0d532f5b60a1e7af7cc4d941bd5008 100644 --- a/drivers/irqchip/irq-bcm2835.c +++ b/drivers/irqchip/irq-bcm2835.c @@ -54,7 +54,7 @@ #include /* Put the bank and irq (32 bits) into the hwirq */ -#define MAKE_HWIRQ(b, n) ((b << 5) | (n)) +#define MAKE_HWIRQ(b, n) (((b) << 5) | (n)) #define HWIRQ_BANK(i) (i >> 5) #define HWIRQ_BIT(i) BIT(i & 0x1f) @@ -70,9 +70,13 @@ | SHORTCUT1_MASK | SHORTCUT2_MASK) #define REG_FIQ_CONTROL 0x0c +#define REG_FIQ_ENABLE 0x80 +#define REG_FIQ_DISABLE 0 #define NR_BANKS 3 #define IRQS_PER_BANK 32 +#define NUMBER_IRQS MAKE_HWIRQ(NR_BANKS, 0) +#define FIQ_START (NR_IRQS_BANK0 + MAKE_HWIRQ(NR_BANKS - 1, 0)) static const int reg_pending[] __initconst = { 0x00, 0x04, 0x08 }; static const int reg_enable[] __initconst = { 0x18, 0x10, 0x14 }; @@ -97,14 +101,38 @@ static void __exception_irq_entry bcm2835_handle_irq( struct pt_regs *regs); static void bcm2836_chained_handle_irq(struct irq_desc *desc); +static inline unsigned int hwirq_to_fiq(unsigned long hwirq) +{ + hwirq -= NUMBER_IRQS; + /* + * The hwirq numbering used in this driver is: + * BASE (0-7) GPU1 (32-63) GPU2 (64-95). + * This differ from the one used in the FIQ register: + * GPU1 (0-31) GPU2 (32-63) BASE (64-71) + */ + if (hwirq >= 32) + return hwirq - 32; + + return hwirq + 64; +} + static void armctrl_mask_irq(struct irq_data *d) { - writel_relaxed(HWIRQ_BIT(d->hwirq), intc.disable[HWIRQ_BANK(d->hwirq)]); + if (d->hwirq >= NUMBER_IRQS) + writel_relaxed(REG_FIQ_DISABLE, intc.base + REG_FIQ_CONTROL); + else + writel_relaxed(HWIRQ_BIT(d->hwirq), + intc.disable[HWIRQ_BANK(d->hwirq)]); } static void armctrl_unmask_irq(struct irq_data *d) { - writel_relaxed(HWIRQ_BIT(d->hwirq), intc.enable[HWIRQ_BANK(d->hwirq)]); + if (d->hwirq >= NUMBER_IRQS) + writel_relaxed(REG_FIQ_ENABLE | hwirq_to_fiq(d->hwirq), + intc.base + REG_FIQ_CONTROL); + else + writel_relaxed(HWIRQ_BIT(d->hwirq), + intc.enable[HWIRQ_BANK(d->hwirq)]); } static struct irq_chip armctrl_chip = { @@ -150,8 +178,9 @@ static int __init armctrl_of_init(struct device_node *node, panic("%s: unable to map IC registers\n", node->full_name); - intc.domain = irq_domain_add_linear(node, MAKE_HWIRQ(NR_BANKS, 0), - &armctrl_ops, NULL); + intc.base = base; + intc.domain = irq_domain_add_linear(node, NUMBER_IRQS * 2, + &armctrl_ops, NULL); if (!intc.domain) panic("%s: unable to create IRQ domain\n", node->full_name); @@ -181,6 +210,18 @@ static int __init armctrl_of_init(struct device_node *node, set_handle_irq(bcm2835_handle_irq); } + /* Make a duplicate irq range which is used to enable FIQ */ + for (b = 0; b < NR_BANKS; b++) { + for (i = 0; i < bank_irqs[b]; i++) { + irq = irq_create_mapping(intc.domain, + MAKE_HWIRQ(b, i) + NUMBER_IRQS); + BUG_ON(irq <= 0); + irq_set_chip(irq, &armctrl_chip); + set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); + } + } + init_FIQ(FIQ_START); + return 0; } From e7d7541eeb53185497ecf9d5f355c7c734fe6434 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= Date: Fri, 23 Oct 2015 16:26:55 +0200 Subject: [PATCH 009/165] irqchip: irq-bcm2835: Add 2836 FIQ support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Noralf Trønnes --- drivers/irqchip/irq-bcm2835.c | 43 +++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 41 insertions(+), 2 deletions(-) diff --git a/drivers/irqchip/irq-bcm2835.c b/drivers/irqchip/irq-bcm2835.c index 42ff5e6a8e0d532f5b60a1e7af7cc4d941bd5008..eccf6ed025299cb480884f5bcbe77abf55a6bbb1 100644 --- a/drivers/irqchip/irq-bcm2835.c +++ b/drivers/irqchip/irq-bcm2835.c @@ -50,8 +50,11 @@ #include #include #include +#include +#include #include +#include /* Put the bank and irq (32 bits) into the hwirq */ #define MAKE_HWIRQ(b, n) (((b) << 5) | (n)) @@ -69,6 +72,9 @@ #define BANK0_VALID_MASK (BANK0_HWIRQ_MASK | BANK1_HWIRQ | BANK2_HWIRQ \ | SHORTCUT1_MASK | SHORTCUT2_MASK) +#undef ARM_LOCAL_GPU_INT_ROUTING +#define ARM_LOCAL_GPU_INT_ROUTING 0x0c + #define REG_FIQ_CONTROL 0x0c #define REG_FIQ_ENABLE 0x80 #define REG_FIQ_DISABLE 0 @@ -94,6 +100,7 @@ struct armctrl_ic { void __iomem *enable[NR_BANKS]; void __iomem *disable[NR_BANKS]; struct irq_domain *domain; + struct regmap *local_regmap; }; static struct armctrl_ic intc __read_mostly; @@ -127,12 +134,35 @@ static void armctrl_mask_irq(struct irq_data *d) static void armctrl_unmask_irq(struct irq_data *d) { - if (d->hwirq >= NUMBER_IRQS) + if (d->hwirq >= NUMBER_IRQS) { + if (num_online_cpus() > 1) { + unsigned int data; + int ret; + + if (!intc.local_regmap) { + pr_err("FIQ is disabled due to missing regmap\n"); + return; + } + + ret = regmap_read(intc.local_regmap, + ARM_LOCAL_GPU_INT_ROUTING, &data); + if (ret) { + pr_err("Failed to read int routing %d\n", ret); + return; + } + + data &= ~0xc; + data |= (1 << 2); + regmap_write(intc.local_regmap, + ARM_LOCAL_GPU_INT_ROUTING, data); + } + writel_relaxed(REG_FIQ_ENABLE | hwirq_to_fiq(d->hwirq), intc.base + REG_FIQ_CONTROL); - else + } else { writel_relaxed(HWIRQ_BIT(d->hwirq), intc.enable[HWIRQ_BANK(d->hwirq)]); + } } static struct irq_chip armctrl_chip = { @@ -210,6 +240,15 @@ static int __init armctrl_of_init(struct device_node *node, set_handle_irq(bcm2835_handle_irq); } + if (is_2836) { + intc.local_regmap = + syscon_regmap_lookup_by_compatible("brcm,bcm2836-arm-local"); + if (IS_ERR(intc.local_regmap)) { + pr_err("Failed to get local register map. FIQ is disabled for cpus > 1\n"); + intc.local_regmap = NULL; + } + } + /* Make a duplicate irq range which is used to enable FIQ */ for (b = 0; b < NR_BANKS; b++) { for (i = 0; i < bank_irqs[b]; i++) { From 612f126b64884a5e0f5e73b7c236093b4d56612f Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Tue, 14 Jul 2015 10:26:09 +0100 Subject: [PATCH 010/165] spidev: Add "spidev" compatible string to silence warning See: https://github.com/raspberrypi/linux/issues/1054 --- drivers/spi/spidev.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c index 9e2e099baf8ca5cc6510912a36d4ca03daeb8273..e59640942826db2ea14d0bde0ff5ab22ec34c9dd 100644 --- a/drivers/spi/spidev.c +++ b/drivers/spi/spidev.c @@ -697,6 +697,7 @@ static const struct of_device_id spidev_dt_ids[] = { { .compatible = "rohm,dh2228fv" }, { .compatible = "lineartechnology,ltc2488" }, { .compatible = "ge,achc" }, + { .compatible = "spidev" }, {}, }; MODULE_DEVICE_TABLE(of, spidev_dt_ids); From 5b78423b2e1540634810dac47b48a3d27a83e365 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Tue, 3 Jan 2017 18:25:01 +0000 Subject: [PATCH 011/165] Revert "pinctrl: bcm2835: switch to GPIOLIB_IRQCHIP" This reverts commit 85ae9e512f437cd09bf61564bdba29ab88bab3e3. --- drivers/pinctrl/bcm/Kconfig | 1 - drivers/pinctrl/bcm/pinctrl-bcm2835.c | 140 ++++++++++++++++++---------------- 2 files changed, 76 insertions(+), 65 deletions(-) diff --git a/drivers/pinctrl/bcm/Kconfig b/drivers/pinctrl/bcm/Kconfig index e8c4e4f934a6d388bef3e77b89dc19d1e3a6db66..5691311b93991043e9074c330646d0b4837d296e 100644 --- a/drivers/pinctrl/bcm/Kconfig +++ b/drivers/pinctrl/bcm/Kconfig @@ -20,7 +20,6 @@ config PINCTRL_BCM2835 bool select PINMUX select PINCONF - select GPIOLIB_IRQCHIP config PINCTRL_IPROC_GPIO bool "Broadcom iProc GPIO (with PINCONF) driver" diff --git a/drivers/pinctrl/bcm/pinctrl-bcm2835.c b/drivers/pinctrl/bcm/pinctrl-bcm2835.c index 85d0091128644c446aed878e87769e82c77c3ebf..4f2621272bfd5cbc0d691d2fabe89e2ee428d6db 100644 --- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c +++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c @@ -24,9 +24,11 @@ #include #include #include +#include #include #include #include +#include #include #include #include @@ -79,6 +81,11 @@ enum bcm2835_pinconf_param { #define BCM2835_PINCONF_UNPACK_PARAM(_conf_) ((_conf_) >> 16) #define BCM2835_PINCONF_UNPACK_ARG(_conf_) ((_conf_) & 0xffff) +struct bcm2835_gpio_irqdata { + struct bcm2835_pinctrl *pc; + int irqgroup; +}; + struct bcm2835_pinctrl { struct device *dev; void __iomem *base; @@ -89,13 +96,16 @@ struct bcm2835_pinctrl { unsigned int irq_type[BCM2835_NUM_GPIOS]; struct pinctrl_dev *pctl_dev; + struct irq_domain *irq_domain; struct gpio_chip gpio_chip; struct pinctrl_gpio_range gpio_range; - int irq_group[BCM2835_NUM_IRQS]; + struct bcm2835_gpio_irqdata irq_data[BCM2835_NUM_IRQS]; spinlock_t irq_lock[BCM2835_NUM_BANKS]; }; +static struct lock_class_key gpio_lock_class; + /* pins are just named GPIO0..GPIO53 */ #define BCM2835_GPIO_PIN(a) PINCTRL_PIN(a, "gpio" #a) static struct pinctrl_pin_desc bcm2835_gpio_pins[] = { @@ -353,6 +363,13 @@ static int bcm2835_gpio_direction_output(struct gpio_chip *chip, return pinctrl_gpio_direction_output(chip->base + offset); } +static int bcm2835_gpio_to_irq(struct gpio_chip *chip, unsigned offset) +{ + struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); + + return irq_linear_revmap(pc->irq_domain, offset); +} + static struct gpio_chip bcm2835_gpio_chip = { .label = MODULE_NAME, .owner = THIS_MODULE, @@ -363,13 +380,14 @@ static struct gpio_chip bcm2835_gpio_chip = { .get_direction = bcm2835_gpio_get_direction, .get = bcm2835_gpio_get, .set = bcm2835_gpio_set, + .to_irq = bcm2835_gpio_to_irq, .base = -1, .ngpio = BCM2835_NUM_GPIOS, .can_sleep = false, }; -static void bcm2835_gpio_irq_handle_bank(struct bcm2835_pinctrl *pc, - unsigned int bank, u32 mask) +static int bcm2835_gpio_irq_handle_bank(struct bcm2835_pinctrl *pc, + unsigned int bank, u32 mask) { unsigned long events; unsigned offset; @@ -381,49 +399,34 @@ static void bcm2835_gpio_irq_handle_bank(struct bcm2835_pinctrl *pc, events &= pc->enabled_irq_map[bank]; for_each_set_bit(offset, &events, 32) { gpio = (32 * bank) + offset; - /* FIXME: no clue why the code looks up the type here */ type = pc->irq_type[gpio]; - generic_handle_irq(irq_linear_revmap(pc->gpio_chip.irqdomain, - gpio)); + generic_handle_irq(irq_linear_revmap(pc->irq_domain, gpio)); } + + return (events != 0); } -static void bcm2835_gpio_irq_handler(struct irq_desc *desc) +static irqreturn_t bcm2835_gpio_irq_handler(int irq, void *dev_id) { - struct gpio_chip *chip = irq_desc_get_handler_data(desc); - struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); - struct irq_chip *host_chip = irq_desc_get_chip(desc); - int irq = irq_desc_get_irq(desc); - int group; - int i; - - for (i = 0; i < ARRAY_SIZE(pc->irq); i++) { - if (pc->irq[i] == irq) { - group = pc->irq_group[i]; - break; - } - } - /* This should not happen, every IRQ has a bank */ - if (i == ARRAY_SIZE(pc->irq)) - BUG(); + struct bcm2835_gpio_irqdata *irqdata = dev_id; + struct bcm2835_pinctrl *pc = irqdata->pc; + int handled = 0; - chained_irq_enter(host_chip, desc); - - switch (group) { + switch (irqdata->irqgroup) { case 0: /* IRQ0 covers GPIOs 0-27 */ - bcm2835_gpio_irq_handle_bank(pc, 0, 0x0fffffff); + handled = bcm2835_gpio_irq_handle_bank(pc, 0, 0x0fffffff); break; case 1: /* IRQ1 covers GPIOs 28-45 */ - bcm2835_gpio_irq_handle_bank(pc, 0, 0xf0000000); - bcm2835_gpio_irq_handle_bank(pc, 1, 0x00003fff); + handled = bcm2835_gpio_irq_handle_bank(pc, 0, 0xf0000000) | + bcm2835_gpio_irq_handle_bank(pc, 1, 0x00003fff); break; case 2: /* IRQ2 covers GPIOs 46-53 */ - bcm2835_gpio_irq_handle_bank(pc, 1, 0x003fc000); + handled = bcm2835_gpio_irq_handle_bank(pc, 1, 0x003fc000); break; } - chained_irq_exit(host_chip, desc); + return handled ? IRQ_HANDLED : IRQ_NONE; } static inline void __bcm2835_gpio_irq_config(struct bcm2835_pinctrl *pc, @@ -469,8 +472,7 @@ static void bcm2835_gpio_irq_config(struct bcm2835_pinctrl *pc, static void bcm2835_gpio_irq_enable(struct irq_data *data) { - struct gpio_chip *chip = irq_data_get_irq_chip_data(data); - struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); + struct bcm2835_pinctrl *pc = irq_data_get_irq_chip_data(data); unsigned gpio = irqd_to_hwirq(data); unsigned offset = GPIO_REG_SHIFT(gpio); unsigned bank = GPIO_REG_OFFSET(gpio); @@ -484,8 +486,7 @@ static void bcm2835_gpio_irq_enable(struct irq_data *data) static void bcm2835_gpio_irq_disable(struct irq_data *data) { - struct gpio_chip *chip = irq_data_get_irq_chip_data(data); - struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); + struct bcm2835_pinctrl *pc = irq_data_get_irq_chip_data(data); unsigned gpio = irqd_to_hwirq(data); unsigned offset = GPIO_REG_SHIFT(gpio); unsigned bank = GPIO_REG_OFFSET(gpio); @@ -591,8 +592,7 @@ static int __bcm2835_gpio_irq_set_type_enabled(struct bcm2835_pinctrl *pc, static int bcm2835_gpio_irq_set_type(struct irq_data *data, unsigned int type) { - struct gpio_chip *chip = irq_data_get_irq_chip_data(data); - struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); + struct bcm2835_pinctrl *pc = irq_data_get_irq_chip_data(data); unsigned gpio = irqd_to_hwirq(data); unsigned offset = GPIO_REG_SHIFT(gpio); unsigned bank = GPIO_REG_OFFSET(gpio); @@ -618,8 +618,7 @@ static int bcm2835_gpio_irq_set_type(struct irq_data *data, unsigned int type) static void bcm2835_gpio_irq_ack(struct irq_data *data) { - struct gpio_chip *chip = irq_data_get_irq_chip_data(data); - struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); + struct bcm2835_pinctrl *pc = irq_data_get_irq_chip_data(data); unsigned gpio = irqd_to_hwirq(data); bcm2835_gpio_set_bit(pc, GPEDS0, gpio); @@ -662,11 +661,10 @@ static void bcm2835_pctl_pin_dbg_show(struct pinctrl_dev *pctldev, unsigned offset) { struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); - struct gpio_chip *chip = &pc->gpio_chip; enum bcm2835_fsel fsel = bcm2835_pinctrl_fsel_get(pc, offset); const char *fname = bcm2835_functions[fsel]; int value = bcm2835_gpio_get_bit(pc, GPLEV0, offset); - int irq = irq_find_mapping(chip->irqdomain, offset); + int irq = irq_find_mapping(pc->irq_domain, offset); seq_printf(s, "function %s in %s; irq %d (%s)", fname, value ? "hi" : "lo", @@ -1012,6 +1010,21 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev) pc->gpio_chip.parent = dev; pc->gpio_chip.of_node = np; + pc->irq_domain = irq_domain_add_linear(np, BCM2835_NUM_GPIOS, + &irq_domain_simple_ops, NULL); + if (!pc->irq_domain) { + dev_err(dev, "could not create IRQ domain\n"); + return -ENOMEM; + } + + for (i = 0; i < BCM2835_NUM_GPIOS; i++) { + int irq = irq_create_mapping(pc->irq_domain, i); + irq_set_lockdep_class(irq, &gpio_lock_class); + irq_set_chip_and_handler(irq, &bcm2835_gpio_irq_chip, + handle_level_irq); + irq_set_chip_data(irq, pc); + } + for (i = 0; i < BCM2835_NUM_BANKS; i++) { unsigned long events; unsigned offset; @@ -1032,35 +1045,34 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev) spin_lock_init(&pc->irq_lock[i]); } - err = gpiochip_add_data(&pc->gpio_chip, pc); - if (err) { - dev_err(dev, "could not add GPIO chip\n"); - return err; + for (i = 0; i < BCM2835_NUM_IRQS; i++) { + int len; + char *name; + pc->irq[i] = irq_of_parse_and_map(np, i); + pc->irq_data[i].pc = pc; + pc->irq_data[i].irqgroup = i; + + len = strlen(dev_name(pc->dev)) + 16; + name = devm_kzalloc(pc->dev, len, GFP_KERNEL); + if (!name) + return -ENOMEM; + snprintf(name, len, "%s:bank%d", dev_name(pc->dev), i); + + err = devm_request_irq(dev, pc->irq[i], + bcm2835_gpio_irq_handler, IRQF_SHARED, + name, &pc->irq_data[i]); + if (err) { + dev_err(dev, "unable to request IRQ %d\n", pc->irq[i]); + return err; + } } - err = gpiochip_irqchip_add(&pc->gpio_chip, &bcm2835_gpio_irq_chip, - 0, handle_level_irq, IRQ_TYPE_NONE); + err = gpiochip_add_data(&pc->gpio_chip, pc); if (err) { - dev_info(dev, "could not add irqchip\n"); + dev_err(dev, "could not add GPIO chip\n"); return err; } - for (i = 0; i < BCM2835_NUM_IRQS; i++) { - pc->irq[i] = irq_of_parse_and_map(np, i); - pc->irq_group[i] = i; - /* - * Use the same handler for all groups: this is necessary - * since we use one gpiochip to cover all lines - the - * irq handler then needs to figure out which group and - * bank that was firing the IRQ and look up the per-group - * and bank data. - */ - gpiochip_set_chained_irqchip(&pc->gpio_chip, - &bcm2835_gpio_irq_chip, - pc->irq[i], - bcm2835_gpio_irq_handler); - } - pc->pctl_dev = devm_pinctrl_register(dev, &bcm2835_pinctrl_desc, pc); if (IS_ERR(pc->pctl_dev)) { gpiochip_remove(&pc->gpio_chip); From 0578c862453c7aef2e013996ccf5d3aa9e277793 Mon Sep 17 00:00:00 2001 From: notro Date: Thu, 10 Jul 2014 13:59:47 +0200 Subject: [PATCH 012/165] pinctrl-bcm2835: Set base to 0 give expected gpio numbering Signed-off-by: Noralf Tronnes --- drivers/pinctrl/bcm/pinctrl-bcm2835.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pinctrl/bcm/pinctrl-bcm2835.c b/drivers/pinctrl/bcm/pinctrl-bcm2835.c index 4f2621272bfd5cbc0d691d2fabe89e2ee428d6db..5b7cb4c415e19f98e25b221ab0ad36b6885dae4c 100644 --- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c +++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c @@ -381,7 +381,7 @@ static struct gpio_chip bcm2835_gpio_chip = { .get = bcm2835_gpio_get, .set = bcm2835_gpio_set, .to_irq = bcm2835_gpio_to_irq, - .base = -1, + .base = 0, .ngpio = BCM2835_NUM_GPIOS, .can_sleep = false, }; From 90aa0aad83456a4fa846525d06a4359a95e2bdaa Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Thu, 26 Feb 2015 09:58:22 +0000 Subject: [PATCH 013/165] pinctrl-bcm2835: Only request the interrupts listed in the DTB Although the GPIO controller can generate three interrupts (four counting the common one), the device tree files currently only specify two. In the absence of the third, simply don't register that interrupt (as opposed to registering 0), which has the effect of making it impossible to generate interrupts for GPIOs 46-53 which, since they share pins with the SD card interface, is unlikely to be a problem. --- drivers/pinctrl/bcm/pinctrl-bcm2835.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/pinctrl/bcm/pinctrl-bcm2835.c b/drivers/pinctrl/bcm/pinctrl-bcm2835.c index 5b7cb4c415e19f98e25b221ab0ad36b6885dae4c..6351fe7f8e314ac5ebb102dd20847b383fd5b857 100644 --- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c +++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c @@ -1049,6 +1049,8 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev) int len; char *name; pc->irq[i] = irq_of_parse_and_map(np, i); + if (pc->irq[i] == 0) + break; pc->irq_data[i].pc = pc; pc->irq_data[i].irqgroup = i; From d51cfb02233abe9c3ccedaffb8332cd0e77ea6c1 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Wed, 24 Jun 2015 14:10:44 +0100 Subject: [PATCH 014/165] spi-bcm2835: Support pin groups other than 7-11 The spi-bcm2835 driver automatically uses GPIO chip-selects due to some unreliability of the native ones. In doing so it chooses the same pins as the native chip-selects would use, but the existing code always uses pins 7 and 8, wherever the SPI function is mapped. Search the pinctrl group assigned to the driver for pins that correspond to native chip-selects, and use those for GPIO chip- selects. Signed-off-by: Phil Elwell --- drivers/spi/spi-bcm2835.c | 45 +++++++++++++++++++++++++++++++++++++-------- 1 file changed, 37 insertions(+), 8 deletions(-) diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c index f35cc10772f6670397ea923ad30158270dd68578..5dfe20ffc2866fa6789825016c585175a29705b6 100644 --- a/drivers/spi/spi-bcm2835.c +++ b/drivers/spi/spi-bcm2835.c @@ -688,6 +688,8 @@ static int bcm2835_spi_setup(struct spi_device *spi) { int err; struct gpio_chip *chip; + struct device_node *pins; + u32 pingroup_index; /* * sanity checking the native-chipselects */ @@ -704,15 +706,42 @@ static int bcm2835_spi_setup(struct spi_device *spi) "setup: only two native chip-selects are supported\n"); return -EINVAL; } - /* now translate native cs to GPIO */ - - /* get the gpio chip for the base */ - chip = gpiochip_find("pinctrl-bcm2835", chip_match_name); - if (!chip) - return 0; - /* and calculate the real CS */ - spi->cs_gpio = chip->base + 8 - spi->chip_select; + /* now translate native cs to GPIO */ + /* first look for chip select pins in the devices pin groups */ + for (pingroup_index = 0; + (pins = of_parse_phandle(spi->master->dev.of_node, + "pinctrl-0", + pingroup_index)) != 0; + pingroup_index++) { + u32 pin; + u32 pin_index; + for (pin_index = 0; + of_property_read_u32_index(pins, + "brcm,pins", + pin_index, + &pin) == 0; + pin_index++) { + if (((spi->chip_select == 0) && + ((pin == 8) || (pin == 36) || (pin == 46))) || + ((spi->chip_select == 1) && + ((pin == 7) || (pin == 35)))) { + spi->cs_gpio = pin; + break; + } + } + of_node_put(pins); + } + /* if that fails, assume GPIOs 7-11 are used */ + if (!gpio_is_valid(spi->cs_gpio) ) { + /* get the gpio chip for the base */ + chip = gpiochip_find("pinctrl-bcm2835", chip_match_name); + if (!chip) + return 0; + + /* and calculate the real CS */ + spi->cs_gpio = chip->base + 8 - spi->chip_select; + } /* and set up the "mode" and level */ dev_info(&spi->dev, "setting up native-CS%i as GPIO %i\n", From a4aea453b3234e99b5400c631595cc2b1263c016 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Fri, 1 Jul 2016 22:09:24 +0100 Subject: [PATCH 015/165] spi-bcm2835: Disable forced software CS Select software CS in bcm2708_common.dtsi, and disable the automatic conversion in the driver to allow hardware CS to be re-enabled with an overlay. See: https://github.com/raspberrypi/linux/issues/1547 Signed-off-by: Phil Elwell --- drivers/spi/spi-bcm2835.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c index 5dfe20ffc2866fa6789825016c585175a29705b6..8493474d286f7a1ac6454a22c61c8c2cef9121bf 100644 --- a/drivers/spi/spi-bcm2835.c +++ b/drivers/spi/spi-bcm2835.c @@ -707,6 +707,7 @@ static int bcm2835_spi_setup(struct spi_device *spi) return -EINVAL; } +#if 0 /* now translate native cs to GPIO */ /* first look for chip select pins in the devices pin groups */ for (pingroup_index = 0; @@ -756,6 +757,7 @@ static int bcm2835_spi_setup(struct spi_device *spi) spi->chip_select, spi->cs_gpio, err); return err; } +#endif return 0; } From 2188eefb05bfce482654b99c81a5ed2c09ddeba4 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Tue, 8 Nov 2016 21:35:38 +0000 Subject: [PATCH 016/165] spi-bcm2835: Remove unused code --- drivers/spi/spi-bcm2835.c | 61 ----------------------------------------------- 1 file changed, 61 deletions(-) diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c index 8493474d286f7a1ac6454a22c61c8c2cef9121bf..33d75ad38a7f77d085321ace9101900a83bebcac 100644 --- a/drivers/spi/spi-bcm2835.c +++ b/drivers/spi/spi-bcm2835.c @@ -679,17 +679,8 @@ static void bcm2835_spi_set_cs(struct spi_device *spi, bool gpio_level) bcm2835_wr(bs, BCM2835_SPI_CS, cs); } -static int chip_match_name(struct gpio_chip *chip, void *data) -{ - return !strcmp(chip->label, data); -} - static int bcm2835_spi_setup(struct spi_device *spi) { - int err; - struct gpio_chip *chip; - struct device_node *pins; - u32 pingroup_index; /* * sanity checking the native-chipselects */ @@ -707,58 +698,6 @@ static int bcm2835_spi_setup(struct spi_device *spi) return -EINVAL; } -#if 0 - /* now translate native cs to GPIO */ - /* first look for chip select pins in the devices pin groups */ - for (pingroup_index = 0; - (pins = of_parse_phandle(spi->master->dev.of_node, - "pinctrl-0", - pingroup_index)) != 0; - pingroup_index++) { - u32 pin; - u32 pin_index; - for (pin_index = 0; - of_property_read_u32_index(pins, - "brcm,pins", - pin_index, - &pin) == 0; - pin_index++) { - if (((spi->chip_select == 0) && - ((pin == 8) || (pin == 36) || (pin == 46))) || - ((spi->chip_select == 1) && - ((pin == 7) || (pin == 35)))) { - spi->cs_gpio = pin; - break; - } - } - of_node_put(pins); - } - /* if that fails, assume GPIOs 7-11 are used */ - if (!gpio_is_valid(spi->cs_gpio) ) { - /* get the gpio chip for the base */ - chip = gpiochip_find("pinctrl-bcm2835", chip_match_name); - if (!chip) - return 0; - - /* and calculate the real CS */ - spi->cs_gpio = chip->base + 8 - spi->chip_select; - } - - /* and set up the "mode" and level */ - dev_info(&spi->dev, "setting up native-CS%i as GPIO %i\n", - spi->chip_select, spi->cs_gpio); - - /* set up GPIO as output and pull to the correct level */ - err = gpio_direction_output(spi->cs_gpio, - (spi->mode & SPI_CS_HIGH) ? 0 : 1); - if (err) { - dev_err(&spi->dev, - "could not set CS%i gpio %i as output: %i", - spi->chip_select, spi->cs_gpio, err); - return err; - } -#endif - return 0; } From d5045f96098752f22cc453bfb16e08e7883e832d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= Date: Wed, 3 Jun 2015 12:26:13 +0200 Subject: [PATCH 017/165] ARM: bcm2835: Set Serial number and Revision MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The VideoCore bootloader passes in Serial number and Revision number through Device Tree. Make these available to userspace through /proc/cpuinfo. Mainline status: There is a commit in linux-next that standardize passing the serial number through Device Tree (string: /serial-number): ARM: 8355/1: arch: Show the serial number from devicetree in cpuinfo There was an attempt to do the same with the revision number, but it didn't get in: [PATCH v2 1/2] arm: devtree: Set system_rev from DT revision Signed-off-by: Noralf Trønnes --- arch/arm/mach-bcm/board_bcm2835.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm/mach-bcm/board_bcm2835.c b/arch/arm/mach-bcm/board_bcm2835.c index 0c1edfc98696da0e0bb7f4a18cdfbcdd27a9795d..8f152266ba9b470df2eaaed9ebcf158ed2079834 100644 --- a/arch/arm/mach-bcm/board_bcm2835.c +++ b/arch/arm/mach-bcm/board_bcm2835.c @@ -16,13 +16,23 @@ #include #include #include +#include #include #include static void __init bcm2835_init(void) { + struct device_node *np = of_find_node_by_path("/system"); + u32 val; + u64 val64; + bcm2835_init_clocks(); + + if (!of_property_read_u32(np, "linux,revision", &val)) + system_rev = val; + if (!of_property_read_u64(np, "linux,serial", &val64)) + system_serial_low = val64; } static const char * const bcm2835_compat[] = { From fafa0aece974e67ed438e7071e1121afebd49897 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= Date: Sat, 3 Oct 2015 22:22:55 +0200 Subject: [PATCH 018/165] dmaengine: bcm2835: Load driver early and support legacy API MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Load driver early since at least bcm2708_fb doesn't support deferred probing and even if it did, we don't want the video driver deferred. Support the legacy DMA API which is needed by bcm2708_fb. Don't mask out channel 2. Signed-off-by: Noralf Trønnes --- drivers/dma/Kconfig | 2 +- drivers/dma/bcm2835-dma.c | 26 +++++++++++++++++++++++++- 2 files changed, 26 insertions(+), 2 deletions(-) diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index d01d59812cf3ec8f171e09641ae2c1c787e0de06..a754288fb8bec3dafea4952f5133703f4e42f7df 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -108,7 +108,7 @@ config COH901318 config DMA_BCM2835 tristate "BCM2835 DMA engine support" - depends on ARCH_BCM2835 + depends on ARCH_BCM2835 || ARCH_BCM2708 || ARCH_BCM2709 select DMA_ENGINE select DMA_VIRTUAL_CHANNELS diff --git a/drivers/dma/bcm2835-dma.c b/drivers/dma/bcm2835-dma.c index 6204cc32d09c5096df8aec304c3c37b3bcb6be44..599c218dc8a73172dd4bd4a058fc8f95a73f982f 100644 --- a/drivers/dma/bcm2835-dma.c +++ b/drivers/dma/bcm2835-dma.c @@ -37,6 +37,7 @@ #include #include #include +#include #include #include #include @@ -48,6 +49,7 @@ #define BCM2835_DMA_MAX_DMA_CHAN_SUPPORTED 14 #define BCM2835_DMA_CHAN_NAME_SIZE 8 +#define BCM2835_DMA_BULK_MASK BIT(0) struct bcm2835_dmadev { struct dma_device ddev; @@ -925,6 +927,9 @@ static int bcm2835_dma_probe(struct platform_device *pdev) base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(base)) return PTR_ERR(base); + rc = bcm_dmaman_probe(pdev, base, BCM2835_DMA_BULK_MASK); + if (rc) + dev_err(&pdev->dev, "Failed to initialize the legacy API\n"); od->base = base; @@ -962,6 +967,9 @@ static int bcm2835_dma_probe(struct platform_device *pdev) goto err_no_dma; } + /* Channel 0 is used by the legacy API */ + chans_available &= ~BCM2835_DMA_BULK_MASK; + /* get irqs for each channel that we support */ for (i = 0; i <= BCM2835_DMA_MAX_DMA_CHAN_SUPPORTED; i++) { /* skip masked out channels */ @@ -1036,6 +1044,7 @@ static int bcm2835_dma_remove(struct platform_device *pdev) { struct bcm2835_dmadev *od = platform_get_drvdata(pdev); + bcm_dmaman_remove(pdev); dma_async_device_unregister(&od->ddev); bcm2835_dma_free(od); @@ -1051,7 +1060,22 @@ static struct platform_driver bcm2835_dma_driver = { }, }; -module_platform_driver(bcm2835_dma_driver); +static int bcm2835_dma_init(void) +{ + return platform_driver_register(&bcm2835_dma_driver); +} + +static void bcm2835_dma_exit(void) +{ + platform_driver_unregister(&bcm2835_dma_driver); +} + +/* + * Load after serial driver (arch_initcall) so we see the messages if it fails, + * but before drivers (module_init) that need a DMA channel. + */ +subsys_initcall(bcm2835_dma_init); +module_exit(bcm2835_dma_exit); MODULE_ALIAS("platform:bcm2835-dma"); MODULE_DESCRIPTION("BCM2835 DMA engine driver"); From b535bf90b53b6bc8a2565781dc8855dfd30494c3 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Mon, 25 Jan 2016 17:25:12 +0000 Subject: [PATCH 019/165] firmware: Updated mailbox header --- include/soc/bcm2835/raspberrypi-firmware.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/soc/bcm2835/raspberrypi-firmware.h b/include/soc/bcm2835/raspberrypi-firmware.h index cb979ad90401e299344dd5fae38d09c489d8bd58..30fb37fe175df604a738258a2a632bca3bfff33f 100644 --- a/include/soc/bcm2835/raspberrypi-firmware.h +++ b/include/soc/bcm2835/raspberrypi-firmware.h @@ -63,6 +63,7 @@ enum rpi_firmware_property_tag { RPI_FIRMWARE_GET_MIN_VOLTAGE = 0x00030008, RPI_FIRMWARE_GET_TURBO = 0x00030009, RPI_FIRMWARE_GET_MAX_TEMPERATURE = 0x0003000a, + RPI_FIRMWARE_GET_STC = 0x0003000b, RPI_FIRMWARE_ALLOCATE_MEMORY = 0x0003000c, RPI_FIRMWARE_LOCK_MEMORY = 0x0003000d, RPI_FIRMWARE_UNLOCK_MEMORY = 0x0003000e, @@ -72,12 +73,15 @@ enum rpi_firmware_property_tag { RPI_FIRMWARE_SET_ENABLE_QPU = 0x00030012, RPI_FIRMWARE_GET_DISPMANX_RESOURCE_MEM_HANDLE = 0x00030014, RPI_FIRMWARE_GET_EDID_BLOCK = 0x00030020, + RPI_FIRMWARE_GET_CUSTOMER_OTP = 0x00030021, RPI_FIRMWARE_GET_DOMAIN_STATE = 0x00030030, RPI_FIRMWARE_SET_CLOCK_STATE = 0x00038001, RPI_FIRMWARE_SET_CLOCK_RATE = 0x00038002, RPI_FIRMWARE_SET_VOLTAGE = 0x00038003, RPI_FIRMWARE_SET_TURBO = 0x00038009, + RPI_FIRMWARE_SET_CUSTOMER_OTP = 0x00038021, RPI_FIRMWARE_SET_DOMAIN_STATE = 0x00038030, + RPI_FIRMWARE_SET_SDHOST_CLOCK = 0x00038042, /* Dispmanx TAGS */ RPI_FIRMWARE_FRAMEBUFFER_ALLOCATE = 0x00040001, @@ -91,6 +95,8 @@ enum rpi_firmware_property_tag { RPI_FIRMWARE_FRAMEBUFFER_GET_VIRTUAL_OFFSET = 0x00040009, RPI_FIRMWARE_FRAMEBUFFER_GET_OVERSCAN = 0x0004000a, RPI_FIRMWARE_FRAMEBUFFER_GET_PALETTE = 0x0004000b, + RPI_FIRMWARE_FRAMEBUFFER_GET_TOUCHBUF = 0x0004000f, + RPI_FIRMWARE_FRAMEBUFFER_GET_GPIOVIRTBUF = 0x00040010, RPI_FIRMWARE_FRAMEBUFFER_RELEASE = 0x00048001, RPI_FIRMWARE_FRAMEBUFFER_TEST_PHYSICAL_WIDTH_HEIGHT = 0x00044003, RPI_FIRMWARE_FRAMEBUFFER_TEST_VIRTUAL_WIDTH_HEIGHT = 0x00044004, @@ -100,6 +106,7 @@ enum rpi_firmware_property_tag { RPI_FIRMWARE_FRAMEBUFFER_TEST_VIRTUAL_OFFSET = 0x00044009, RPI_FIRMWARE_FRAMEBUFFER_TEST_OVERSCAN = 0x0004400a, RPI_FIRMWARE_FRAMEBUFFER_TEST_PALETTE = 0x0004400b, + RPI_FIRMWARE_FRAMEBUFFER_TEST_VSYNC = 0x0004400e, RPI_FIRMWARE_FRAMEBUFFER_SET_PHYSICAL_WIDTH_HEIGHT = 0x00048003, RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_WIDTH_HEIGHT = 0x00048004, RPI_FIRMWARE_FRAMEBUFFER_SET_DEPTH = 0x00048005, @@ -108,6 +115,8 @@ enum rpi_firmware_property_tag { RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_OFFSET = 0x00048009, RPI_FIRMWARE_FRAMEBUFFER_SET_OVERSCAN = 0x0004800a, RPI_FIRMWARE_FRAMEBUFFER_SET_PALETTE = 0x0004800b, + RPI_FIRMWARE_FRAMEBUFFER_SET_VSYNC = 0x0004800e, + RPI_FIRMWARE_FRAMEBUFFER_SET_BACKLIGHT = 0x0004800f, RPI_FIRMWARE_VCHIQ_INIT = 0x00048010, From 4f0de8a823dd84a85feec56f089c846fd7655921 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Wed, 15 Jun 2016 16:48:41 +0100 Subject: [PATCH 020/165] rtc: Add SPI alias for pcf2123 driver Without this alias, Device Tree won't cause the driver to be loaded. See: https://github.com/raspberrypi/linux/pull/1510 --- drivers/rtc/rtc-pcf2123.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/rtc/rtc-pcf2123.c b/drivers/rtc/rtc-pcf2123.c index 8895f77726e8da5444afcd602dceff8f25a9b3fd..1833b8853ceb0e6147cceb93a00e558c3a5db10c 100644 --- a/drivers/rtc/rtc-pcf2123.c +++ b/drivers/rtc/rtc-pcf2123.c @@ -472,3 +472,4 @@ module_spi_driver(pcf2123_driver); MODULE_AUTHOR("Chris Verges "); MODULE_DESCRIPTION("NXP PCF2123 RTC driver"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("spi:rtc-pcf2123"); From 3d6b467733ba028155f18a08fd7363a8af229b46 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= Date: Fri, 7 Oct 2016 16:50:59 +0200 Subject: [PATCH 021/165] watchdog: bcm2835: Support setting reboot partition MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The Raspberry Pi firmware looks at the RSTS register to know which partition to boot from. The reboot syscall command LINUX_REBOOT_CMD_RESTART2 supports passing in a string argument. Add support for passing in a partition number 0..63 to boot from. Partition 63 is a special partiton indicating halt. If the partition doesn't exist, the firmware falls back to partition 0. Signed-off-by: Noralf Trønnes --- drivers/watchdog/bcm2835_wdt.c | 49 +++++++++++++++++++++++------------------- 1 file changed, 27 insertions(+), 22 deletions(-) diff --git a/drivers/watchdog/bcm2835_wdt.c b/drivers/watchdog/bcm2835_wdt.c index b339e0e67b4c1275fd4992fea4f1e24c0575b783..26b7177573fac2af1cd4ab5488d2686f898132fe 100644 --- a/drivers/watchdog/bcm2835_wdt.c +++ b/drivers/watchdog/bcm2835_wdt.c @@ -34,13 +34,7 @@ #define PM_RSTC_WRCFG_SET 0x00000030 #define PM_RSTC_WRCFG_FULL_RESET 0x00000020 #define PM_RSTC_RESET 0x00000102 - -/* - * The Raspberry Pi firmware uses the RSTS register to know which partition - * to boot from. The partition value is spread into bits 0, 2, 4, 6, 8, 10. - * Partition 63 is a special partition used by the firmware to indicate halt. - */ -#define PM_RSTS_RASPBERRYPI_HALT 0x555 +#define PM_RSTS_PARTITION_CLR 0xfffffaaa #define SECS_TO_WDOG_TICKS(x) ((x) << 16) #define WDOG_TICKS_TO_SECS(x) ((x) >> 16) @@ -97,9 +91,24 @@ static unsigned int bcm2835_wdt_get_timeleft(struct watchdog_device *wdog) return WDOG_TICKS_TO_SECS(ret & PM_WDOG_TIME_SET); } -static void __bcm2835_restart(struct bcm2835_wdt *wdt) +/* + * The Raspberry Pi firmware uses the RSTS register to know which partiton + * to boot from. The partiton value is spread into bits 0, 2, 4, 6, 8, 10. + * Partiton 63 is a special partition used by the firmware to indicate halt. + */ + +static void __bcm2835_restart(struct bcm2835_wdt *wdt, u8 partition) { - u32 val; + u32 val, rsts; + + rsts = (partition & BIT(0)) | ((partition & BIT(1)) << 1) | + ((partition & BIT(2)) << 2) | ((partition & BIT(3)) << 3) | + ((partition & BIT(4)) << 4) | ((partition & BIT(5)) << 5); + + val = readl_relaxed(wdt->base + PM_RSTS); + val &= PM_RSTS_PARTITION_CLR; + val |= PM_PASSWORD | rsts; + writel_relaxed(val, wdt->base + PM_RSTS); /* use a timeout of 10 ticks (~150us) */ writel_relaxed(10 | PM_PASSWORD, wdt->base + PM_WDOG); @@ -117,7 +126,13 @@ static int bcm2835_restart(struct watchdog_device *wdog, { struct bcm2835_wdt *wdt = watchdog_get_drvdata(wdog); - __bcm2835_restart(wdt); + unsigned long long val; + u8 partition = 0; + + if (data && !kstrtoull(data, 0, &val) && val <= 63) + partition = val; + + __bcm2835_restart(wdt, partition); return 0; } @@ -155,19 +170,9 @@ static void bcm2835_power_off(void) of_find_compatible_node(NULL, NULL, "brcm,bcm2835-pm-wdt"); struct platform_device *pdev = of_find_device_by_node(np); struct bcm2835_wdt *wdt = platform_get_drvdata(pdev); - u32 val; - - /* - * We set the watchdog hard reset bit here to distinguish this reset - * from the normal (full) reset. bootcode.bin will not reboot after a - * hard reset. - */ - val = readl_relaxed(wdt->base + PM_RSTS); - val |= PM_PASSWORD | PM_RSTS_RASPBERRYPI_HALT; - writel_relaxed(val, wdt->base + PM_RSTS); - /* Continue with normal reset mechanism */ - __bcm2835_restart(wdt); + /* Partition 63 tells the firmware that this is a halt */ + __bcm2835_restart(wdt, 63); } static int bcm2835_wdt_probe(struct platform_device *pdev) From b6ff9a72e22a51449da7f429ef7c1c711dfce429 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Tue, 5 Apr 2016 19:40:12 +0100 Subject: [PATCH 022/165] reboot: Use power off rather than busy spinning when halt is requested --- arch/arm/kernel/reboot.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/arm/kernel/reboot.c b/arch/arm/kernel/reboot.c index 3fa867a2aae672755c6ce6448f4148c989dbf964..80dca8dcd6709034b643c6a3f35729e00fb59a19 100644 --- a/arch/arm/kernel/reboot.c +++ b/arch/arm/kernel/reboot.c @@ -102,9 +102,7 @@ void machine_shutdown(void) */ void machine_halt(void) { - local_irq_disable(); - smp_send_stop(); - while (1); + machine_power_off(); } /* From 2aeffd4676df97117a35fab502a02460e7626c36 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Wed, 9 Nov 2016 13:02:52 +0000 Subject: [PATCH 023/165] bcm: Make RASPBERRYPI_POWER depend on PM --- drivers/soc/bcm/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/soc/bcm/Kconfig b/drivers/soc/bcm/Kconfig index a39b0d58ddd0fdf0ac1cc7295f8aafb12546e226..e037a6dd79d1881a09e3ca911578270917888846 100644 --- a/drivers/soc/bcm/Kconfig +++ b/drivers/soc/bcm/Kconfig @@ -4,6 +4,7 @@ config RASPBERRYPI_POWER bool "Raspberry Pi power domain driver" depends on ARCH_BCM2835 || (COMPILE_TEST && OF) depends on RASPBERRYPI_FIRMWARE=y + depends on PM select PM_GENERIC_DOMAINS if PM help This enables support for the RPi power domains which can be enabled From 5497f9742cad18a9da304bb8955ef1649c86c12a Mon Sep 17 00:00:00 2001 From: Martin Sperl Date: Fri, 2 Sep 2016 16:45:27 +0100 Subject: [PATCH 024/165] Register the clocks early during the boot process, so that special/critical clocks can get enabled early on in the boot process avoiding the risk of disabling a clock, pll_divider or pll when a claiming driver fails to install propperly - maybe it needs to defer. Signed-off-by: Martin Sperl --- drivers/clk/bcm/clk-bcm2835.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c index 02585387061967ac9408e18ac1bce67e9e9414c0..283d2de45e4f29406d01f24ab1cae3f9f879234a 100644 --- a/drivers/clk/bcm/clk-bcm2835.c +++ b/drivers/clk/bcm/clk-bcm2835.c @@ -2163,8 +2163,15 @@ static int bcm2835_clk_probe(struct platform_device *pdev) if (ret) return ret; - return of_clk_add_hw_provider(dev->of_node, of_clk_hw_onecell_get, + ret = of_clk_add_hw_provider(dev->of_node, of_clk_hw_onecell_get, &cprman->onecell); + if (ret) + return ret; + + /* note that we have registered all the clocks */ + dev_dbg(dev, "registered %d clocks\n", asize); + + return 0; } static const struct of_device_id bcm2835_clk_of_match[] = { @@ -2181,7 +2188,11 @@ static struct platform_driver bcm2835_clk_driver = { .probe = bcm2835_clk_probe, }; -builtin_platform_driver(bcm2835_clk_driver); +static int __init __bcm2835_clk_driver_init(void) +{ + return platform_driver_register(&bcm2835_clk_driver); +} +core_initcall(__bcm2835_clk_driver_init); MODULE_AUTHOR("Eric Anholt "); MODULE_DESCRIPTION("BCM2835 clock driver"); From f346bb7359bb9ba8fe1b7d0b5aa4e7ff9be41a80 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Tue, 6 Dec 2016 17:05:39 +0000 Subject: [PATCH 025/165] bcm2835-rng: Avoid initialising if already enabled Avoids the 0x40000 cycles of warmup again if firmware has already used it --- drivers/char/hw_random/bcm2835-rng.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/char/hw_random/bcm2835-rng.c b/drivers/char/hw_random/bcm2835-rng.c index 574211a495491d9d6021dcaefe4274a63ed02055..e66c0fca8c6090e32f72796c0877a1cf1d499fb6 100644 --- a/drivers/char/hw_random/bcm2835-rng.c +++ b/drivers/char/hw_random/bcm2835-rng.c @@ -102,9 +102,10 @@ static int bcm2835_rng_probe(struct platform_device *pdev) rng_setup(rng_base); /* set warm-up count & enable */ - __raw_writel(RNG_WARMUP_COUNT, rng_base + RNG_STATUS); - __raw_writel(RNG_RBGEN, rng_base + RNG_CTRL); - + if (!(__raw_readl(rng_base + RNG_CTRL) & RNG_RBGEN)) { + __raw_writel(RNG_WARMUP_COUNT, rng_base + RNG_STATUS); + __raw_writel(RNG_RBGEN, rng_base + RNG_CTRL); + } /* register driver */ err = hwrng_register(&bcm2835_rng_ops); if (err) { From c49f43e929fdf7b13e8ec2f977a8b29d24fb954c Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Wed, 24 Aug 2016 16:28:44 +0100 Subject: [PATCH 026/165] kbuild: Ignore dtco targets when filtering symbols --- scripts/Kbuild.include | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include index afe3fd3af1e40616857b3e6c425be632c1fa2667..b2bbad417f0c4499a5f49081c8f996b97b01e867 100644 --- a/scripts/Kbuild.include +++ b/scripts/Kbuild.include @@ -288,7 +288,7 @@ ksym_dep_filter = \ $(CPP) $(call flags_nodeps,c_flags) -D__KSYM_DEPS__ $< ;; \ as_*_S|cpp_s_S) \ $(CPP) $(call flags_nodeps,a_flags) -D__KSYM_DEPS__ $< ;; \ - boot*|build*|cpp_its_S|*cpp_lds_S|dtc|host*|vdso*) : ;; \ + boot*|build*|cpp_its_S|*cpp_lds_S|dtc*|host*|vdso*) : ;; \ *) echo "Don't know how to preprocess $(1)" >&2; false ;; \ esac | tr ";" "\n" | sed -rn 's/^.*=== __KSYM_(.*) ===.*$$/KSYM_\1/p' From 50da0852aa6b9a510915c81336ac77b57f63421e Mon Sep 17 00:00:00 2001 From: Robert Tiemann Date: Mon, 20 Jul 2015 11:01:25 +0200 Subject: [PATCH 027/165] BCM2835_DT: Fix I2S register map --- Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt | 4 ++-- Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.txt | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt b/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt index baf9b34d20bfb5b5493e0a69841362530c900a77..11c052acf65e74f032ae77bfd2749db860762b2d 100644 --- a/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt +++ b/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt @@ -74,8 +74,8 @@ Example: bcm2835_i2s: i2s@7e203000 { compatible = "brcm,bcm2835-i2s"; - reg = < 0x7e203000 0x20>, - < 0x7e101098 0x02>; + reg = < 0x7e203000 0x24>, + < 0x7e101098 0x08>; dmas = <&dma 2>, <&dma 3>; diff --git a/Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.txt b/Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.txt index 65783de0aedf3da79adc36fd077b7a89954ddb6b..a89fe4220fdc3f26f75ee66daf187554427118a2 100644 --- a/Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.txt +++ b/Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.txt @@ -16,8 +16,8 @@ Example: bcm2835_i2s: i2s@7e203000 { compatible = "brcm,bcm2835-i2s"; - reg = <0x7e203000 0x20>, - <0x7e101098 0x02>; + reg = <0x7e203000 0x24>, + <0x7e101098 0x08>; dmas = <&dma 2>, <&dma 3>; From 2f491a058d51e143fc7abee21bcfae31b70f3d65 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Mon, 13 Feb 2017 17:20:08 +0000 Subject: [PATCH 028/165] clk-bcm2835: Mark used PLLs and dividers CRITICAL The VPU configures and relies on several PLLs and dividers. Mark all enabled dividers and their PLLs as CRITICAL to prevent the kernel from switching them off. Signed-off-by: Phil Elwell --- drivers/clk/bcm/clk-bcm2835.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c index 283d2de45e4f29406d01f24ab1cae3f9f879234a..85df8c74a309f0b877ef65f1c55b086f1bb774a1 100644 --- a/drivers/clk/bcm/clk-bcm2835.c +++ b/drivers/clk/bcm/clk-bcm2835.c @@ -1366,6 +1366,11 @@ bcm2835_register_pll_divider(struct bcm2835_cprman *cprman, divider->div.hw.init = &init; divider->div.table = NULL; + if (!(cprman_read(cprman, data->cm_reg) & data->hold_mask)) { + init.flags |= CLK_IS_CRITICAL; + divider->div.flags |= CLK_IS_CRITICAL; + } + divider->cprman = cprman; divider->data = data; From 960974f9595315af7d9001558e0d1719dc81788c Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Mon, 13 Feb 2017 17:20:08 +0000 Subject: [PATCH 029/165] clk-bcm2835: Add claim-clocks property The claim-clocks property can be used to prevent PLLs and dividers from being marked as critical. It contains a vector of clock IDs, as defined by dt-bindings/clock/bcm2835.h. Use this mechanism to claim PLLD_DSI0, PLLD_DSI1, PLLH_AUX and PLLH_PIX for the vc4_kms_v3d driver. Signed-off-by: Phil Elwell --- drivers/clk/bcm/clk-bcm2835.c | 34 ++++++++++++++++++++++++++++++++-- 1 file changed, 32 insertions(+), 2 deletions(-) diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c index 85df8c74a309f0b877ef65f1c55b086f1bb774a1..eec6735505c074c0a76ae647bf0e1bb68ab3a488 100644 --- a/drivers/clk/bcm/clk-bcm2835.c +++ b/drivers/clk/bcm/clk-bcm2835.c @@ -1298,6 +1298,8 @@ static const struct clk_ops bcm2835_vpu_clock_clk_ops = { .debug_init = bcm2835_clock_debug_init, }; +static bool bcm2835_clk_is_claimed(const char *name); + static struct clk_hw *bcm2835_register_pll(struct bcm2835_cprman *cprman, const struct bcm2835_pll_data *data) { @@ -1314,6 +1316,9 @@ static struct clk_hw *bcm2835_register_pll(struct bcm2835_cprman *cprman, init.ops = &bcm2835_pll_clk_ops; init.flags = CLK_IGNORE_UNUSED; + if (!bcm2835_clk_is_claimed(data->name)) + init.flags |= CLK_IS_CRITICAL; + pll = kzalloc(sizeof(*pll), GFP_KERNEL); if (!pll) return NULL; @@ -1367,8 +1372,10 @@ bcm2835_register_pll_divider(struct bcm2835_cprman *cprman, divider->div.table = NULL; if (!(cprman_read(cprman, data->cm_reg) & data->hold_mask)) { - init.flags |= CLK_IS_CRITICAL; - divider->div.flags |= CLK_IS_CRITICAL; + if (!bcm2835_clk_is_claimed(data->source_pll)) + init.flags |= CLK_IS_CRITICAL; + if (!bcm2835_clk_is_claimed(data->name)) + divider->div.flags |= CLK_IS_CRITICAL; } divider->cprman = cprman; @@ -2095,6 +2102,8 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .ctl_reg = CM_PERIICTL), }; +static bool bcm2835_clk_claimed[ARRAY_SIZE(clk_desc_array)]; + /* * Permanently take a reference on the parent of the SDRAM clock. * @@ -2114,6 +2123,19 @@ static int bcm2835_mark_sdc_parent_critical(struct clk *sdc) return clk_prepare_enable(parent); } +static bool bcm2835_clk_is_claimed(const char *name) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(clk_desc_array); i++) { + const char *clk_name = *(const char **)(clk_desc_array[i].data); + if (!strcmp(name, clk_name)) + return bcm2835_clk_claimed[i]; + } + + return false; +} + static int bcm2835_clk_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -2123,6 +2145,7 @@ static int bcm2835_clk_probe(struct platform_device *pdev) const struct bcm2835_clk_desc *desc; const size_t asize = ARRAY_SIZE(clk_desc_array); size_t i; + u32 clk_id; int ret; cprman = devm_kzalloc(dev, sizeof(*cprman) + @@ -2138,6 +2161,13 @@ static int bcm2835_clk_probe(struct platform_device *pdev) if (IS_ERR(cprman->regs)) return PTR_ERR(cprman->regs); + memset(bcm2835_clk_claimed, 0, sizeof(bcm2835_clk_claimed)); + for (i = 0; + !of_property_read_u32_index(pdev->dev.of_node, "claim-clocks", + i, &clk_id); + i++) + bcm2835_clk_claimed[clk_id]= true; + memcpy(cprman->real_parent_names, cprman_parent_names, sizeof(cprman_parent_names)); of_clk_parent_fill(dev->of_node, cprman->real_parent_names, From 0cf68f6c976dcd94fdc5e9dfcb85514815419a35 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Wed, 1 Mar 2017 16:06:53 +0000 Subject: [PATCH 030/165] clk-bcm2835: Correct the prediv logic If a clock has the prediv flag set, both the integer and fractional parts must be scaled when calculating the resulting frequency. Signed-off-by: Phil Elwell --- drivers/clk/bcm/clk-bcm2835.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c index eec6735505c074c0a76ae647bf0e1bb68ab3a488..e0d28add45efdf70d1eba590282a3a2654af328d 100644 --- a/drivers/clk/bcm/clk-bcm2835.c +++ b/drivers/clk/bcm/clk-bcm2835.c @@ -616,8 +616,10 @@ static unsigned long bcm2835_pll_get_rate(struct clk_hw *hw, using_prediv = cprman_read(cprman, data->ana_reg_base + 4) & data->ana->fb_prediv_mask; - if (using_prediv) + if (using_prediv) { ndiv *= 2; + fdiv *= 2; + } return bcm2835_pll_rate_from_divisors(parent_rate, ndiv, fdiv, pdiv); } From e99b65bd772d6e42b107a3b149b19d50e3033c41 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Mon, 6 Mar 2017 09:06:18 +0000 Subject: [PATCH 031/165] clk-bcm2835: Read max core clock from firmware The VPU is responsible for managing the core clock, usually under direction from the bcm2835-cpufreq driver but not via the clk-bcm2835 driver. Since the core frequency can change without warning, it is safer to report the maximum clock rate to users of the core clock - I2C, SPI and the mini UART - to err on the safe side when calculating clock divisors. If the DT node for the clock driver includes a reference to the firmware node, use the firmware API to query the maximum core clock instead of reading the divider registers. Prior to this patch, a "100KHz" I2C bus was sometimes clocked at about 160KHz. In particular, switching to the 4.9 kernel was likely to break SenseHAT usage on a Pi3. Signed-off-by: Phil Elwell --- drivers/clk/bcm/clk-bcm2835.c | 39 ++++++++++++++++++++++++++++++++++++++- 1 file changed, 38 insertions(+), 1 deletion(-) diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c index e0d28add45efdf70d1eba590282a3a2654af328d..39f72da6ba1f6ec6ec41d5dc1bf46344aab008da 100644 --- a/drivers/clk/bcm/clk-bcm2835.c +++ b/drivers/clk/bcm/clk-bcm2835.c @@ -45,6 +45,7 @@ #include #include #include +#include #define CM_PASSWORD 0x5a000000 @@ -299,6 +300,8 @@ #define LOCK_TIMEOUT_NS 100000000 #define BCM2835_MAX_FB_RATE 1750000000u +#define VCMSG_ID_CORE_CLOCK 4 + /* * Names of clocks used within the driver that need to be replaced * with an external parent's name. This array is in the order that @@ -317,6 +320,7 @@ static const char *const cprman_parent_names[] = { struct bcm2835_cprman { struct device *dev; void __iomem *regs; + struct rpi_firmware *fw; spinlock_t regs_lock; /* spinlock for all clocks */ /* @@ -1025,6 +1029,30 @@ static unsigned long bcm2835_clock_get_rate(struct clk_hw *hw, return bcm2835_clock_rate_from_divisor(clock, parent_rate, div); } +static unsigned long bcm2835_clock_get_rate_vpu(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct bcm2835_clock *clock = bcm2835_clock_from_hw(hw); + struct bcm2835_cprman *cprman = clock->cprman; + + if (cprman->fw) { + struct { + u32 id; + u32 val; + } packet; + + packet.id = VCMSG_ID_CORE_CLOCK; + packet.val = 0; + + if (!rpi_firmware_property(cprman->fw, + RPI_FIRMWARE_GET_MAX_CLOCK_RATE, + &packet, sizeof(packet))) + return packet.val; + } + + return bcm2835_clock_get_rate(hw, parent_rate); +} + static void bcm2835_clock_wait_busy(struct bcm2835_clock *clock) { struct bcm2835_cprman *cprman = clock->cprman; @@ -1292,7 +1320,7 @@ static int bcm2835_vpu_clock_is_on(struct clk_hw *hw) */ static const struct clk_ops bcm2835_vpu_clock_clk_ops = { .is_prepared = bcm2835_vpu_clock_is_on, - .recalc_rate = bcm2835_clock_get_rate, + .recalc_rate = bcm2835_clock_get_rate_vpu, .set_rate = bcm2835_clock_set_rate, .determine_rate = bcm2835_clock_determine_rate, .set_parent = bcm2835_clock_set_parent, @@ -2146,6 +2174,7 @@ static int bcm2835_clk_probe(struct platform_device *pdev) struct resource *res; const struct bcm2835_clk_desc *desc; const size_t asize = ARRAY_SIZE(clk_desc_array); + struct device_node *fw_node; size_t i; u32 clk_id; int ret; @@ -2163,6 +2192,14 @@ static int bcm2835_clk_probe(struct platform_device *pdev) if (IS_ERR(cprman->regs)) return PTR_ERR(cprman->regs); + fw_node = of_parse_phandle(dev->of_node, "firmware", 0); + if (fw_node) { + struct rpi_firmware *fw = rpi_firmware_get(NULL); + if (!fw) + return -EPROBE_DEFER; + cprman->fw = fw; + } + memset(bcm2835_clk_claimed, 0, sizeof(bcm2835_clk_claimed)); for (i = 0; !of_property_read_u32_index(pdev->dev.of_node, "claim-clocks", From 0c7a2453f1ef27ec31327e904aad8c2bdb6972f6 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Thu, 9 Feb 2017 14:36:44 +0000 Subject: [PATCH 032/165] sound: Demote deferral errors to INFO level At present there is no mechanism to specify driver load order, which can lead to deferrals and repeated retries until successful. Since this situation is expected, reduce the dmesg level to INFO and mention that the operation will be retried. Signed-off-by: Phil Elwell --- sound/soc/soc-core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 2722bb0c557310d97816cfa7857b24d7c9bd4948..c32d3c31f34fc12195baf873a507d0b46f5c8ba8 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1057,7 +1057,7 @@ static int soc_bind_dai_link(struct snd_soc_card *card, cpu_dai_component.dai_name = dai_link->cpu_dai_name; rtd->cpu_dai = snd_soc_find_dai(&cpu_dai_component); if (!rtd->cpu_dai) { - dev_err(card->dev, "ASoC: CPU DAI %s not registered\n", + dev_info(card->dev, "ASoC: CPU DAI %s not registered - will retry\n", dai_link->cpu_dai_name); goto _err_defer; } @@ -1069,7 +1069,7 @@ static int soc_bind_dai_link(struct snd_soc_card *card, for (i = 0; i < rtd->num_codecs; i++) { codec_dais[i] = snd_soc_find_dai(&codecs[i]); if (!codec_dais[i]) { - dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n", + dev_info(card->dev, "ASoC: CODEC DAI %s not registered - will retry\n", codecs[i].dai_name); goto _err_defer; } From 459069a0909aa7b61395af8d77098a0a411cfbc0 Mon Sep 17 00:00:00 2001 From: Claggy3 Date: Sat, 11 Feb 2017 14:00:30 +0000 Subject: [PATCH 033/165] Update vfpmodule.c Christopher Alexander Tobias Schulze - May 2, 2015, 11:57 a.m. This patch fixes a problem with VFP state save and restore related to exception handling (panic with message "BUG: unsupported FP instruction in kernel mode") present on VFP11 floating point units (as used with ARM1176JZF-S CPUs, e.g. on first generation Raspberry Pi boards). This patch was developed and discussed on https://github.com/raspberrypi/linux/issues/859 A precondition to see the crashes is that floating point exception traps are enabled. In this case, the VFP11 might determine that a FPU operation needs to trap at a point in time when it is not possible to signal this to the ARM11 core any more. The VFP11 will then set the FPEXC.EX bit and store the trapped opcode in FPINST. (In some cases, a second opcode might have been accepted by the VFP11 before the exception was detected and could be reported to the ARM11 - in this case, the VFP11 also sets FPEXC.FP2V and stores the second opcode in FPINST2.) If FPEXC.EX is set, the VFP11 will "bounce" the next FPU opcode issued by the ARM11 CPU, which will be seen by the ARM11 as an undefined opcode trap. The VFP support code examines the FPEXC.EX and FPEXC.FP2V bits to decide what actions to take, i.e., whether to emulate the opcodes found in FPINST and FPINST2, and whether to retry the bounced instruction. If a user space application has left the VFP11 in this "pending trap" state, the next FPU opcode issued to the VFP11 might actually be the VSTMIA operation vfp_save_state() uses to store the FPU registers to memory (in our test cases, when building the signal stack frame). In this case, the kernel crashes as described above. This patch fixes the problem by making sure that vfp_save_state() is always entered with FPEXC.EX cleared. (The current value of FPEXC has already been saved, so this does not corrupt the context. Clearing FPEXC.EX has no effects on FPINST or FPINST2. Also note that many callers already modify FPEXC by setting FPEXC.EN before invoking vfp_save_state().) This patch also addresses a second problem related to FPEXC.EX: After returning from signal handling, the kernel reloads the VFP context from the user mode stack. However, the current code explicitly clears both FPEXC.EX and FPEXC.FP2V during reload. As VFP11 requires these bits to be preserved, this patch disables clearing them for VFP implementations belonging to architecture 1. There should be no negative side effects: the user can set both bits by executing FPU opcodes anyway, and while user code may now place arbitrary values into FPINST and FPINST2 (e.g., non-VFP ARM opcodes) the VFP support code knows which instructions can be emulated, and rejects other opcodes with "unhandled bounce" messages, so there should be no security impact from allowing reloading FPEXC.EX and FPEXC.FP2V. Signed-off-by: Christopher Alexander Tobias Schulze --- arch/arm/vfp/vfpmodule.c | 25 +++++++++++++++++++------ 1 file changed, 19 insertions(+), 6 deletions(-) diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c index a71a48e71fffa8626fe90106815376c44bbe679b..d6c0a5a0a5ae3510db3ace5e3f5d341075193f99 100644 --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -179,8 +179,11 @@ static int vfp_notifier(struct notifier_block *self, unsigned long cmd, void *v) * case the thread migrates to a different CPU. The * restoring is done lazily. */ - if ((fpexc & FPEXC_EN) && vfp_current_hw_state[cpu]) + if ((fpexc & FPEXC_EN) && vfp_current_hw_state[cpu]) { + /* vfp_save_state oopses on VFP11 if EX bit set */ + fmxr(FPEXC, fpexc & ~FPEXC_EX); vfp_save_state(vfp_current_hw_state[cpu], fpexc); + } #endif /* @@ -463,13 +466,16 @@ static int vfp_pm_suspend(void) /* if vfp is on, then save state for resumption */ if (fpexc & FPEXC_EN) { pr_debug("%s: saving vfp state\n", __func__); + /* vfp_save_state oopses on VFP11 if EX bit set */ + fmxr(FPEXC, fpexc & ~FPEXC_EX); vfp_save_state(&ti->vfpstate, fpexc); /* disable, just in case */ fmxr(FPEXC, fmrx(FPEXC) & ~FPEXC_EN); } else if (vfp_current_hw_state[ti->cpu]) { #ifndef CONFIG_SMP - fmxr(FPEXC, fpexc | FPEXC_EN); + /* vfp_save_state oopses on VFP11 if EX bit set */ + fmxr(FPEXC, (fpexc & ~FPEXC_EX) | FPEXC_EN); vfp_save_state(vfp_current_hw_state[ti->cpu], fpexc); fmxr(FPEXC, fpexc); #endif @@ -532,7 +538,8 @@ void vfp_sync_hwstate(struct thread_info *thread) /* * Save the last VFP state on this CPU. */ - fmxr(FPEXC, fpexc | FPEXC_EN); + /* vfp_save_state oopses on VFP11 if EX bit set */ + fmxr(FPEXC, (fpexc & ~FPEXC_EX) | FPEXC_EN); vfp_save_state(&thread->vfpstate, fpexc | FPEXC_EN); fmxr(FPEXC, fpexc); } @@ -604,6 +611,7 @@ int vfp_restore_user_hwstate(struct user_vfp __user *ufp, struct vfp_hard_struct *hwstate = &thread->vfpstate.hard; unsigned long fpexc; int err = 0; + u32 fpsid = fmrx(FPSID); /* Disable VFP to avoid corrupting the new thread state. */ vfp_flush_hwstate(thread); @@ -627,8 +635,12 @@ int vfp_restore_user_hwstate(struct user_vfp __user *ufp, /* Ensure the VFP is enabled. */ fpexc |= FPEXC_EN; - /* Ensure FPINST2 is invalid and the exception flag is cleared. */ - fpexc &= ~(FPEXC_EX | FPEXC_FP2V); + /* Mask FPXEC_EX and FPEXC_FP2V if not required by VFP arch */ + if ((fpsid & FPSID_ARCH_MASK) != (1 << FPSID_ARCH_BIT)) { + /* Ensure FPINST2 is invalid and the exception flag is cleared. */ + fpexc &= ~(FPEXC_EX | FPEXC_FP2V); + } + hwstate->fpexc = fpexc; __get_user_error(hwstate->fpinst, &ufp_exc->fpinst, err); @@ -698,7 +710,8 @@ void kernel_neon_begin(void) cpu = get_cpu(); fpexc = fmrx(FPEXC) | FPEXC_EN; - fmxr(FPEXC, fpexc); + /* vfp_save_state oopses on VFP11 if EX bit set */ + fmxr(FPEXC, fpexc & ~FPEXC_EX); /* * Save the userland NEON/VFP state. Under UP, From b6ed390ff9842f76496a66acb76526eb0e9788b3 Mon Sep 17 00:00:00 2001 From: Matt Flax Date: Wed, 8 Mar 2017 21:13:24 +1100 Subject: [PATCH 034/165] ASoC: bcm2835_i2s.c: relax the ch2 register setting for 8 channels This patch allows ch2 registers to be set for 8 channels of audio. --- sound/soc/bcm/bcm2835-i2s.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/bcm/bcm2835-i2s.c b/sound/soc/bcm/bcm2835-i2s.c index 6ba20498202ed36906b52096893a88867a79269f..56df7d8a43d0aac055a91b0d24aca8e1b4e308e4 100644 --- a/sound/soc/bcm/bcm2835-i2s.c +++ b/sound/soc/bcm/bcm2835-i2s.c @@ -312,6 +312,7 @@ static int bcm2835_i2s_hw_params(struct snd_pcm_substream *substream, switch (params_channels(params)) { case 2: + case 8: format = BCM2835_I2S_CH1(format) | BCM2835_I2S_CH2(format); format |= BCM2835_I2S_CH1(BCM2835_I2S_CHPOS(ch1pos)); format |= BCM2835_I2S_CH2(BCM2835_I2S_CHPOS(ch2pos)); From 71504630ad77c40ba0a67c9b540b427ce5d54c43 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= Date: Tue, 1 Nov 2016 15:15:41 +0100 Subject: [PATCH 035/165] i2c: bcm2835: Add debug support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This adds a debug module parameter to aid in debugging transfer issues by printing info to the kernel log. When enabled, status values are collected in the interrupt routine and msg info in bcm2835_i2c_start_transfer(). This is done in a way that tries to avoid affecting timing. Having printk in the isr can mask issues. debug values (additive): 1: Print info on error 2: Print info on all transfers 3: Print messages before transfer is started The value can be changed at runtime: /sys/module/i2c_bcm2835/parameters/debug Example output, debug=3: [ 747.114448] bcm2835_i2c_xfer: msg(1/2) write addr=0x54, len=2 flags= [i2c1] [ 747.114463] bcm2835_i2c_xfer: msg(2/2) read addr=0x54, len=32 flags= [i2c1] [ 747.117809] start_transfer: msg(1/2) write addr=0x54, len=2 flags= [i2c1] [ 747.117825] isr: remain=2, status=0x30000055 : TA TXW TXD TXE [i2c1] [ 747.117839] start_transfer: msg(2/2) read addr=0x54, len=32 flags= [i2c1] [ 747.117849] isr: remain=32, status=0xd0000039 : TA RXR TXD RXD [i2c1] [ 747.117861] isr: remain=20, status=0xd0000039 : TA RXR TXD RXD [i2c1] [ 747.117870] isr: remain=8, status=0x32 : DONE TXD RXD [i2c1] Signed-off-by: Noralf Trønnes --- drivers/i2c/busses/i2c-bcm2835.c | 99 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 98 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-bcm2835.c b/drivers/i2c/busses/i2c-bcm2835.c index cd07a69e2e9355540442785f95e90823b05c9d10..47167f403cc8329bd811b47c7011c299b8ecafee 100644 --- a/drivers/i2c/busses/i2c-bcm2835.c +++ b/drivers/i2c/busses/i2c-bcm2835.c @@ -53,6 +53,18 @@ #define BCM2835_I2C_CDIV_MIN 0x0002 #define BCM2835_I2C_CDIV_MAX 0xFFFE +static unsigned int debug; +module_param(debug, uint, 0644); +MODULE_PARM_DESC(debug, "1=err, 2=isr, 3=xfer"); + +#define BCM2835_DEBUG_MAX 512 +struct bcm2835_debug { + struct i2c_msg *msg; + int msg_idx; + size_t remain; + u32 status; +}; + struct bcm2835_i2c_dev { struct device *dev; void __iomem *regs; @@ -66,8 +78,78 @@ struct bcm2835_i2c_dev { u32 msg_err; u8 *msg_buf; size_t msg_buf_remaining; + struct bcm2835_debug debug[BCM2835_DEBUG_MAX]; + unsigned int debug_num; + unsigned int debug_num_msgs; }; +static inline void bcm2835_debug_add(struct bcm2835_i2c_dev *i2c_dev, u32 s) +{ + if (!i2c_dev->debug_num_msgs || i2c_dev->debug_num >= BCM2835_DEBUG_MAX) + return; + + i2c_dev->debug[i2c_dev->debug_num].msg = i2c_dev->curr_msg; + i2c_dev->debug[i2c_dev->debug_num].msg_idx = + i2c_dev->debug_num_msgs - i2c_dev->num_msgs; + i2c_dev->debug[i2c_dev->debug_num].remain = i2c_dev->msg_buf_remaining; + i2c_dev->debug[i2c_dev->debug_num].status = s; + i2c_dev->debug_num++; +} + +static void bcm2835_debug_print_status(struct bcm2835_i2c_dev *i2c_dev, + struct bcm2835_debug *d) +{ + u32 s = d->status; + + pr_info("isr: remain=%zu, status=0x%x : %s%s%s%s%s%s%s%s%s%s [i2c%d]\n", + d->remain, s, + s & BCM2835_I2C_S_TA ? "TA " : "", + s & BCM2835_I2C_S_DONE ? "DONE " : "", + s & BCM2835_I2C_S_TXW ? "TXW " : "", + s & BCM2835_I2C_S_RXR ? "RXR " : "", + s & BCM2835_I2C_S_TXD ? "TXD " : "", + s & BCM2835_I2C_S_RXD ? "RXD " : "", + s & BCM2835_I2C_S_TXE ? "TXE " : "", + s & BCM2835_I2C_S_RXF ? "RXF " : "", + s & BCM2835_I2C_S_ERR ? "ERR " : "", + s & BCM2835_I2C_S_CLKT ? "CLKT " : "", + i2c_dev->adapter.nr); +} + +static void bcm2835_debug_print_msg(struct bcm2835_i2c_dev *i2c_dev, + struct i2c_msg *msg, int i, int total, + const char *fname) +{ + pr_info("%s: msg(%d/%d) %s addr=0x%02x, len=%u flags=%s%s%s%s%s%s%s [i2c%d]\n", + fname, i, total, + msg->flags & I2C_M_RD ? "read" : "write", msg->addr, msg->len, + msg->flags & I2C_M_TEN ? "TEN" : "", + msg->flags & I2C_M_RECV_LEN ? "RECV_LEN" : "", + msg->flags & I2C_M_NO_RD_ACK ? "NO_RD_ACK" : "", + msg->flags & I2C_M_IGNORE_NAK ? "IGNORE_NAK" : "", + msg->flags & I2C_M_REV_DIR_ADDR ? "REV_DIR_ADDR" : "", + msg->flags & I2C_M_NOSTART ? "NOSTART" : "", + msg->flags & I2C_M_STOP ? "STOP" : "", + i2c_dev->adapter.nr); +} + +static void bcm2835_debug_print(struct bcm2835_i2c_dev *i2c_dev) +{ + struct bcm2835_debug *d; + unsigned int i; + + for (i = 0; i < i2c_dev->debug_num; i++) { + d = &i2c_dev->debug[i]; + if (d->status == ~0) + bcm2835_debug_print_msg(i2c_dev, d->msg, d->msg_idx, + i2c_dev->debug_num_msgs, "start_transfer"); + else + bcm2835_debug_print_status(i2c_dev, d); + } + if (i2c_dev->debug_num >= BCM2835_DEBUG_MAX) + pr_info("BCM2835_DEBUG_MAX reached\n"); +} + static inline void bcm2835_i2c_writel(struct bcm2835_i2c_dev *i2c_dev, u32 reg, u32 val) { @@ -170,6 +252,7 @@ static void bcm2835_i2c_start_transfer(struct bcm2835_i2c_dev *i2c_dev) bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_A, msg->addr); bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_DLEN, msg->len); bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_C, c); + bcm2835_debug_add(i2c_dev, ~0); } /* @@ -187,6 +270,7 @@ static irqreturn_t bcm2835_i2c_isr(int this_irq, void *data) u32 val, err; val = bcm2835_i2c_readl(i2c_dev, BCM2835_I2C_S); + bcm2835_debug_add(i2c_dev, val); err = val & (BCM2835_I2C_S_CLKT | BCM2835_I2C_S_ERR); if (err) { @@ -253,6 +337,13 @@ static int bcm2835_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], unsigned long time_left; int i, ret; + if (debug) + i2c_dev->debug_num_msgs = num; + + if (debug > 2) + for (i = 0; i < num; i++) + bcm2835_debug_print_msg(i2c_dev, &msgs[i], i + 1, num, __func__); + for (i = 0; i < (num - 1); i++) if (msgs[i].flags & I2C_M_RD) { dev_warn_once(i2c_dev->dev, @@ -272,6 +363,10 @@ static int bcm2835_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], time_left = wait_for_completion_timeout(&i2c_dev->completion, adap->timeout); + if (debug > 1 || (debug && (!time_left || i2c_dev->msg_err))) + bcm2835_debug_print(i2c_dev); + i2c_dev->debug_num_msgs = 0; + i2c_dev->debug_num = 0; if (!time_left) { bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_C, BCM2835_I2C_C_CLEAR); @@ -282,7 +377,9 @@ static int bcm2835_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], if (!i2c_dev->msg_err) return num; - dev_dbg(i2c_dev->dev, "i2c transfer failed: %x\n", i2c_dev->msg_err); + if (debug) + dev_err(i2c_dev->dev, "i2c transfer failed: %x\n", + i2c_dev->msg_err); if (i2c_dev->msg_err & BCM2835_I2C_S_ERR) return -EREMOTEIO; From 17d3865ea90a1ee124a0e3a64f00c4d448322591 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Sun, 12 May 2013 12:24:19 +0100 Subject: [PATCH 036/165] Main bcm2708/bcm2709 linux port MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: popcornmix Signed-off-by: Noralf Trønnes bcm2709: Drop platform smp and timer init code irq-bcm2836 handles this through these functions: bcm2835_init_local_timer_frequency() bcm2836_arm_irqchip_smp_init() Signed-off-by: Noralf Trønnes bcm270x: Use watchdog for reboot/poweroff The watchdog driver already has support for reboot/poweroff. Make use of this and remove the code from the platform files. Signed-off-by: Noralf Trønnes --- arch/arm/mach-bcm/Kconfig | 1 + arch/arm/mach-bcm/board_bcm2835.c | 9 +++++++++ arch/arm/mm/proc-v6.S | 15 ++++++++++++--- drivers/irqchip/irq-bcm2835.c | 7 ++++++- drivers/mailbox/bcm2835-mailbox.c | 18 ++++++++++++++++-- 5 files changed, 44 insertions(+), 6 deletions(-) diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig index 4ff30d5278a7ce093c9629d4c25d37e3bbbda752..333dc3c2e5ffbb2c5ab8fcfb6115b6162643cf20 100644 --- a/arch/arm/mach-bcm/Kconfig +++ b/arch/arm/mach-bcm/Kconfig @@ -155,6 +155,7 @@ config ARCH_BCM2835 select FIQ select PINCTRL select PINCTRL_BCM2835 + select MFD_SYSCON if ARCH_MULTI_V7 help This enables support for the Broadcom BCM2835 and BCM2836 SoCs. This SoC is used in the Raspberry Pi and Roku 2 devices. diff --git a/arch/arm/mach-bcm/board_bcm2835.c b/arch/arm/mach-bcm/board_bcm2835.c index 8f152266ba9b470df2eaaed9ebcf158ed2079834..9131e56e446a84db42eb97d7f34994aafd516bc5 100644 --- a/arch/arm/mach-bcm/board_bcm2835.c +++ b/arch/arm/mach-bcm/board_bcm2835.c @@ -21,6 +21,8 @@ #include #include +#include + static void __init bcm2835_init(void) { struct device_node *np = of_find_node_by_path("/system"); @@ -35,6 +37,12 @@ static void __init bcm2835_init(void) system_serial_low = val64; } +static void __init bcm2835_init_early(void) +{ + /* dwc_otg needs this for bounce buffers on non-aligned transfers */ + init_dma_coherent_pool_size(SZ_1M); +} + static const char * const bcm2835_compat[] = { #ifdef CONFIG_ARCH_MULTI_V6 "brcm,bcm2835", @@ -47,5 +55,6 @@ static const char * const bcm2835_compat[] = { DT_MACHINE_START(BCM2835, "BCM2835") .init_machine = bcm2835_init, + .init_early = bcm2835_init_early, .dt_compat = bcm2835_compat MACHINE_END diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S index 06d890a2342b1600e2eae6e350994ad59f5c3a08..30d96e81c0e052c725bdb00bb3df56194023ab9f 100644 --- a/arch/arm/mm/proc-v6.S +++ b/arch/arm/mm/proc-v6.S @@ -73,10 +73,19 @@ ENDPROC(cpu_v6_reset) * * IRQs are already disabled. */ + +/* See jira SW-5991 for details of this workaround */ ENTRY(cpu_v6_do_idle) - mov r1, #0 - mcr p15, 0, r1, c7, c10, 4 @ DWB - WFI may enter a low-power mode - mcr p15, 0, r1, c7, c0, 4 @ wait for interrupt + .align 5 + mov r1, #2 +1: subs r1, #1 + nop + mcreq p15, 0, r1, c7, c10, 4 @ DWB - WFI may enter a low-power mode + mcreq p15, 0, r1, c7, c0, 4 @ wait for interrupt + nop + nop + nop + bne 1b ret lr ENTRY(cpu_v6_dcache_clean_area) diff --git a/drivers/irqchip/irq-bcm2835.c b/drivers/irqchip/irq-bcm2835.c index eccf6ed025299cb480884f5bcbe77abf55a6bbb1..8ed457fd74bd23bee27b64a2c9e3828ce0e4fb87 100644 --- a/drivers/irqchip/irq-bcm2835.c +++ b/drivers/irqchip/irq-bcm2835.c @@ -54,7 +54,9 @@ #include #include +#ifndef CONFIG_ARM64 #include +#endif /* Put the bank and irq (32 bits) into the hwirq */ #define MAKE_HWIRQ(b, n) (((b) << 5) | (n)) @@ -82,6 +84,7 @@ #define NR_BANKS 3 #define IRQS_PER_BANK 32 #define NUMBER_IRQS MAKE_HWIRQ(NR_BANKS, 0) +#undef FIQ_START #define FIQ_START (NR_IRQS_BANK0 + MAKE_HWIRQ(NR_BANKS - 1, 0)) static const int reg_pending[] __initconst = { 0x00, 0x04, 0x08 }; @@ -256,10 +259,12 @@ static int __init armctrl_of_init(struct device_node *node, MAKE_HWIRQ(b, i) + NUMBER_IRQS); BUG_ON(irq <= 0); irq_set_chip(irq, &armctrl_chip); - set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); + irq_set_probe(irq); } } +#ifndef CONFIG_ARM64 init_FIQ(FIQ_START); +#endif return 0; } diff --git a/drivers/mailbox/bcm2835-mailbox.c b/drivers/mailbox/bcm2835-mailbox.c index cfb4b4496dd9f61362dea012176c146120fada07..d9c6c217c4d6a2408abe2665bf7f27006f4edd15 100644 --- a/drivers/mailbox/bcm2835-mailbox.c +++ b/drivers/mailbox/bcm2835-mailbox.c @@ -51,12 +51,15 @@ #define MAIL1_WRT (ARM_0_MAIL1 + 0x00) #define MAIL1_STA (ARM_0_MAIL1 + 0x18) +/* On ARCH_BCM270x these come through (arm_control.h ) */ +#ifndef ARM_MS_FULL /* Status register: FIFO state. */ #define ARM_MS_FULL BIT(31) #define ARM_MS_EMPTY BIT(30) /* Configuration register: Enable interrupts. */ #define ARM_MC_IHAVEDATAIRQEN BIT(0) +#endif struct bcm2835_mbox { void __iomem *regs; @@ -151,7 +154,7 @@ static int bcm2835_mbox_probe(struct platform_device *pdev) return -ENOMEM; spin_lock_init(&mbox->lock); - ret = devm_request_irq(dev, irq_of_parse_and_map(dev->of_node, 0), + ret = devm_request_irq(dev, platform_get_irq(pdev, 0), bcm2835_mbox_irq, 0, dev_name(dev), mbox); if (ret) { dev_err(dev, "Failed to register a mailbox IRQ handler: %d\n", @@ -209,7 +212,18 @@ static struct platform_driver bcm2835_mbox_driver = { .probe = bcm2835_mbox_probe, .remove = bcm2835_mbox_remove, }; -module_platform_driver(bcm2835_mbox_driver); + +static int __init bcm2835_mbox_init(void) +{ + return platform_driver_register(&bcm2835_mbox_driver); +} +arch_initcall(bcm2835_mbox_init); + +static void __init bcm2835_mbox_exit(void) +{ + platform_driver_unregister(&bcm2835_mbox_driver); +} +module_exit(bcm2835_mbox_exit); MODULE_AUTHOR("Lubomir Rintel "); MODULE_DESCRIPTION("BCM2835 mailbox IPC driver"); From 620d2f432aa96efd2f8dcc812b7fc5f8f241123a Mon Sep 17 00:00:00 2001 From: popcornmix Date: Wed, 1 May 2013 19:46:17 +0100 Subject: [PATCH 037/165] Add dwc_otg driver MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: popcornmix usb: dwc: fix lockdep false positive Signed-off-by: Kari Suvanto usb: dwc: fix inconsistent lock state Signed-off-by: Kari Suvanto Add FIQ patch to dwc_otg driver. Enable with dwc_otg.fiq_fix_enable=1. Should give about 10% more ARM performance. Thanks to Gordon and Costas Avoid dynamic memory allocation for channel lock in USB driver. Thanks ddv2005. Add NAK holdoff scheme. Enabled by default, disable with dwc_otg.nak_holdoff_enable=0. Thanks gsh Make sure we wait for the reset to finish dwc_otg: fix bug in dwc_otg_hcd.c resulting in silent kernel memory corruption, escalating to OOPS under high USB load. dwc_otg: Fix unsafe access of QTD during URB enqueue In dwc_otg_hcd_urb_enqueue during qtd creation, it was possible that the transaction could complete almost immediately after the qtd was assigned to a host channel during URB enqueue, which meant the qtd pointer was no longer valid having been completed and removed. Usually, this resulted in an OOPS during URB submission. By predetermining whether transactions need to be queued or not, this unsafe pointer access is avoided. This bug was only evident on the Pi model A where a device was attached that had no periodic endpoints (e.g. USB pendrive or some wlan devices). dwc_otg: Fix incorrect URB allocation error handling If the memory allocation for a dwc_otg_urb failed, the kernel would OOPS because for some reason a member of the *unallocated* struct was set to zero. Error handling changed to fail correctly. dwc_otg: fix potential use-after-free case in interrupt handler If a transaction had previously aborted, certain interrupts are enabled to track error counts and reset where necessary. On IN endpoints the host generates an ACK interrupt near-simultaneously with completion of transfer. In the case where this transfer had previously had an error, this results in a use-after-free on the QTD memory space with a 1-byte length being overwritten to 0x00. dwc_otg: add handling of SPLIT transaction data toggle errors Previously a data toggle error on packets from a USB1.1 device behind a TT would result in the Pi locking up as the driver never handled the associated interrupt. Patch adds basic retry mechanism and interrupt acknowledgement to cater for either a chance toggle error or for devices that have a broken initial toggle state (FT8U232/FT232BM). dwc_otg: implement tasklet for returning URBs to usbcore hcd layer The dwc_otg driver interrupt handler for transfer completion will spend a very long time with interrupts disabled when a URB is completed - this is because usb_hcd_giveback_urb is called from within the handler which for a USB device driver with complicated processing (e.g. webcam) will take an exorbitant amount of time to complete. This results in missed completion interrupts for other USB packets which lead to them being dropped due to microframe overruns. This patch splits returning the URB to the usb hcd layer into a high-priority tasklet. This will have most benefit for isochronous IN transfers but will also have incidental benefit where multiple periodic devices are active at once. dwc_otg: fix NAK holdoff and allow on split transactions only This corrects a bug where if a single active non-periodic endpoint had at least one transaction in its qh, on frnum == MAX_FRNUM the qh would get skipped and never get queued again. This would result in a silent device until error detection (automatic or otherwise) would either reset the device or flush and requeue the URBs. Additionally the NAK holdoff was enabled for all transactions - this would potentially stall a HS endpoint for 1ms if a previous error state enabled this interrupt and the next response was a NAK. Fix so that only split transactions get held off. dwc_otg: Call usb_hcd_unlink_urb_from_ep with lock held in completion handler usb_hcd_unlink_urb_from_ep must be called with the HCD lock held. Calling it asynchronously in the tasklet was not safe (regression in c4564d4a1a0a9b10d4419e48239f5d99e88d2667). This change unlinks it from the endpoint prior to queueing it for handling in the tasklet, and also adds a check to ensure the urb is OK to be unlinked before doing so. NULL pointer dereference kernel oopses had been observed in usb_hcd_giveback_urb when a USB device was unplugged/replugged during data transfer. This effect was reproduced using automated USB port power control, hundreds of replug events were performed during active transfers to confirm that the problem was eliminated. USB fix using a FIQ to implement split transactions This commit adds a FIQ implementaion that schedules the split transactions using a FIQ so we don't get held off by the interrupt latency of Linux dwc_otg: fix device attributes and avoid kernel warnings on boot dcw_otg: avoid logging function that can cause panics See: https://github.com/raspberrypi/firmware/issues/21 Thanks to cleverca22 for fix dwc_otg: mask correct interrupts after transaction error recovery The dwc_otg driver will unmask certain interrupts on a transaction that previously halted in the error state in order to reset the QTD error count. The various fine-grained interrupt handlers do not consider that other interrupts besides themselves were unmasked. By disabling the two other interrupts only ever enabled in DMA mode for this purpose, we can avoid unnecessary function calls in the IRQ handler. This will also prevent an unneccesary FIQ interrupt from being generated if the FIQ is enabled. dwc_otg: fiq: prevent FIQ thrash and incorrect state passing to IRQ In the case of a transaction to a device that had previously aborted due to an error, several interrupts are enabled to reset the error count when a device responds. This has the side-effect of making the FIQ thrash because the hardware will generate multiple instances of a NAK on an IN bulk/interrupt endpoint and multiple instances of ACK on an OUT bulk/interrupt endpoint. Make the FIQ mask and clear the associated interrupts. Additionally, on non-split transactions make sure that only unmasked interrupts are cleared. This caused a hard-to-trigger but serious race condition when you had the combination of an endpoint awaiting error recovery and a transaction completed on an endpoint - due to the sequencing and timing of interrupts generated by the dwc_otg core, it was possible to confuse the IRQ handler. Fix function tracing dwc_otg: whitespace cleanup in dwc_otg_urb_enqueue dwc_otg: prevent OOPSes during device disconnects The dwc_otg_urb_enqueue function is thread-unsafe. In particular the access of urb->hcpriv, usb_hcd_link_urb_to_ep, dwc_otg_urb->qtd and friends does not occur within a critical section and so if a device was unplugged during activity there was a high chance that the usbcore hub_thread would try to disable the endpoint with partially- formed entries in the URB queue. This would result in BUG() or null pointer dereferences. Fix so that access of urb->hcpriv, enqueuing to the hardware and adding to usbcore endpoint URB lists is contained within a single critical section. dwc_otg: prevent BUG() in TT allocation if hub address is > 16 A fixed-size array is used to track TT allocation. This was previously set to 16 which caused a crash because dwc_otg_hcd_allocate_port would read past the end of the array. This was hit if a hub was plugged in which enumerated as addr > 16, due to previous device resets or unplugs. Also add #ifdef FIQ_DEBUG around hcd->hub_port_alloc[], which grows to a large size if 128 hub addresses are supported. This field is for debug only for tracking which frame an allocate happened in. dwc_otg: make channel halts with unknown state less damaging If the IRQ received a channel halt interrupt through the FIQ with no other bits set, the IRQ would not release the host channel and never complete the URB. Add catchall handling to treat as a transaction error and retry. dwc_otg: fiq_split: use TTs with more granularity This fixes certain issues with split transaction scheduling. - Isochronous multi-packet OUT transactions now hog the TT until they are completed - this prevents hubs aborting transactions if they get a periodic start-split out-of-order - Don't perform TT allocation on non-periodic endpoints - this allows simultaneous use of the TT's bulk/control and periodic transaction buffers This commit will mainly affect USB audio playback. dwc_otg: fix potential sleep while atomic during urb enqueue Fixes a regression introduced with eb1b482a. Kmalloc called from dwc_otg_hcd_qtd_add / dwc_otg_hcd_qtd_create did not always have the GPF_ATOMIC flag set. Force this flag when inside the larger critical section. dwc_otg: make fiq_split_enable imply fiq_fix_enable Failing to set up the FIQ correctly would result in "IRQ 32: nobody cared" errors in dmesg. dwc_otg: prevent crashes on host port disconnects Fix several issues resulting in crashes or inconsistent state if a Model A root port was disconnected. - Clean up queue heads properly in kill_urbs_in_qh_list by removing the empty QHs from the schedule lists - Set the halt status properly to prevent IRQ handlers from using freed memory - Add fiq_split related cleanup for saved registers - Make microframe scheduling reclaim host channels if active during a disconnect - Abort URBs with -ESHUTDOWN status response, informing device drivers so they respond in a more correct fashion and don't try to resubmit URBs - Prevent IRQ handlers from attempting to handle channel interrupts if the associated URB was dequeued (and the driver state was cleared) dwc_otg: prevent leaking URBs during enqueue A dwc_otg_urb would get leaked if the HCD enqueue function failed for any reason. Free the URB at the appropriate points. dwc_otg: Enable NAK holdoff for control split transactions Certain low-speed devices take a very long time to complete a data or status stage of a control transaction, producing NAK responses until they complete internal processing - the USB2.0 spec limit is up to 500mS. This causes the same type of interrupt storm as seen with USB-serial dongles prior to c8edb238. In certain circumstances, usually while booting, this interrupt storm could cause SD card timeouts. dwc_otg: Fix for occasional lockup on boot when doing a USB reset dwc_otg: Don't issue traffic to LS devices in FS mode Issuing low-speed packets when the root port is in full-speed mode causes the root port to stop responding. Explicitly fail when enqueuing URBs to a LS endpoint on a FS bus. Fix ARM architecture issue with local_irq_restore() If local_fiq_enable() is called before a local_irq_restore(flags) where the flags variable has the F bit set, the FIQ will be erroneously disabled. Fixup arch_local_irq_restore to avoid trampling the F bit in CPSR. Also fix some of the hacks previously implemented for previous dwc_otg incarnations. dwc_otg: fiq_fsm: Base commit for driver rewrite This commit removes the previous FIQ fixes entirely and adds fiq_fsm. This rewrite features much more complete support for split transactions and takes into account several OTG hardware bugs. High-speed isochronous transactions are also capable of being performed by fiq_fsm. All driver options have been removed and replaced with: - dwc_otg.fiq_enable (bool) - dwc_otg.fiq_fsm_enable (bool) - dwc_otg.fiq_fsm_mask (bitmask) - dwc_otg.nak_holdoff (unsigned int) Defaults are specified such that fiq_fsm behaves similarly to the previously implemented FIQ fixes. fiq_fsm: Push error recovery into the FIQ when fiq_fsm is used If the transfer associated with a QTD failed due to a bus error, the HCD would retry the transfer up to 3 times (implementing the USB2.0 three-strikes retry in software). Due to the masking mechanism used by fiq_fsm, it is only possible to pass a single interrupt through to the HCD per-transfer. In this instance host channels would fall off the radar because the error reset would function, but the subsequent channel halt would be lost. Push the error count reset into the FIQ handler. fiq_fsm: Implement timeout mechanism For full-speed endpoints with a large packet size, interrupt latency runs the risk of the FIQ starting a transaction too late in a full-speed frame. If the device is still transmitting data when EOF2 for the downstream frame occurs, the hub will disable the port. This change is not reflected in the hub status endpoint and the device becomes unresponsive. Prevent high-bandwidth transactions from being started too late in a frame. The mechanism is not guaranteed: a combination of bit stuffing and hub latency may still result in a device overrunning. fiq_fsm: fix bounce buffer utilisation for Isochronous OUT Multi-packet isochronous OUT transactions were subject to a few bounday bugs. Fix them. Audio playback is now much more robust: however, an issue stands with devices that have adaptive sinks - ALSA plays samples too fast. dwc_otg: Return full-speed frame numbers in HS mode The frame counter increments on every *microframe* in high-speed mode. Most device drivers expect this number to be in full-speed frames - this caused considerable confusion to e.g. snd_usb_audio which uses the frame counter to estimate the number of samples played. fiq_fsm: save PID on completion of interrupt OUT transfers Also add edge case handling for interrupt transports. Note that for periodic split IN, data toggles are unimplemented in the OTG host hardware - it unconditionally accepts any PID. fiq_fsm: add missing case for fiq_fsm_tt_in_use() Certain combinations of bitrate and endpoint activity could result in a periodic transaction erroneously getting started while the previous Isochronous OUT was still active. fiq_fsm: clear hcintmsk for aborted transactions Prevents the FIQ from erroneously handling interrupts on a timed out channel. fiq_fsm: enable by default fiq_fsm: fix dequeues for non-periodic split transactions If a dequeue happened between the SSPLIT and CSPLIT phases of the transaction, the HCD would never receive an interrupt. fiq_fsm: Disable by default fiq_fsm: Handle HC babble errors The HCTSIZ transfer size field raises a babble interrupt if the counter wraps. Handle the resulting interrupt in this case. dwc_otg: fix interrupt registration for fiq_enable=0 Additionally make the module parameter conditional for wherever hcd->fiq_state is touched. fiq_fsm: Enable by default dwc_otg: Fix various issues with root port and transaction errors Process the host port interrupts correctly (and don't trample them). Root port hotplug now functional again. Fix a few thinkos with the transaction error passthrough for fiq_fsm. fiq_fsm: Implement hack for Split Interrupt transactions Hubs aren't too picky about which endpoint we send Control type split transactions to. By treating Interrupt transfers as Control, it is possible to use the non-periodic queue in the OTG core as well as the non-periodic FIFOs in the hub itself. This massively reduces the microframe exclusivity/contention that periodic split transactions otherwise have to enforce. It goes without saying that this is a fairly egregious USB specification violation, but it works. Original idea by Hans Petter Selasky @ FreeBSD.org. dwc_otg: FIQ support on SMP. Set up FIQ stack and handler on Core 0 only. dwc_otg: introduce fiq_fsm_spin(un|)lock() SMP safety for the FIQ relies on register read-modify write cycles being completed in the correct order. Several places in the DWC code modify registers also touched by the FIQ. Protect these by a bare-bones lock mechanism. This also makes it possible to run the FIQ and IRQ handlers on different cores. fiq_fsm: fix build on bcm2708 and bcm2709 platforms dwc_otg: put some barriers back where they should be for UP bcm2709/dwc_otg: Setup FIQ on core 1 if >1 core active dwc_otg: fixup read-modify-write in critical paths Be more careful about read-modify-write on registers that the FIQ also touches. Guard fiq_fsm_spin_lock with fiq_enable check fiq_fsm: Falling out of the state machine isn't fatal This edge case can be hit if the port is disabled while the FIQ is in the middle of a transaction. Make the effects less severe. Also get rid of the useless return value. squash: dwc_otg: Allow to build without SMP usb: core: make overcurrent messages more prominent Hub overcurrent messages are more serious than "debug". Increase loglevel. usb: dwc_otg: Don't use dma_to_virt() Commit 6ce0d20 changes dma_to_virt() which breaks this driver. Open code the old dma_to_virt() implementation to work around this. Limit the use of __bus_to_virt() to cases where transfer_buffer_length is set and transfer_buffer is not set. This is done to increase the chance that this driver will also work on ARCH_BCM2835. transfer_buffer should not be NULL if the length is set, but the comment in the code indicates that there are situations where this might happen. drivers/usb/isp1760/isp1760-hcd.c also has a similar comment pointing to a possible: 'usb storage / SCSI bug'. Signed-off-by: Noralf Trønnes dwc_otg: Fix crash when fiq_enable=0 dwc_otg: fiq_fsm: Make high-speed isochronous strided transfers work properly Certain low-bandwidth high-speed USB devices (specialist audio devices, compressed-frame webcams) have packet intervals > 1 microframe. Stride these transfers in the FIQ by using the start-of-frame interrupt to restart the channel at the right time. dwc_otg: Force host mode to fix incorrect compute module boards dwc_otg: Add ARCH_BCM2835 support Signed-off-by: Noralf Trønnes dwc_otg: Simplify FIQ irq number code Dropping ATAGS means we can simplify the FIQ irq number code. Also add error checking on the returned irq number. Signed-off-by: Noralf Trønnes dwc_otg: Remove duplicate gadget probe/unregister function dwc_otg: Properly set the HFIR Douglas Anderson reported: According to the most up to date version of the dwc2 databook, the FRINT field of the HFIR register should be programmed to: * 125 us * (PHY clock freq for HS) - 1 * 1000 us * (PHY clock freq for FS/LS) - 1 This is opposed to older versions of the doc that claimed it should be: * 125 us * (PHY clock freq for HS) * 1000 us * (PHY clock freq for FS/LS) and reported lower timing jitter on a USB analyser dcw_otg: trim xfer length when buffer larger than allocated size is received dwc_otg: Don't free qh align buffers in atomic context dwc_otg: Enable the hack for Split Interrupt transactions by default dwc_otg.fiq_fsm_mask=0xF has long been a suggestion for users with audio stutters or other USB bandwidth issues. So far we are aware of many success stories but no failure caused by this setting. Make it a default to learn more. See: https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=70437 Signed-off-by: popcornmix dwc_otg: Use kzalloc when suitable dwc_otg: Pass struct device to dma_alloc*() This makes it possible to get the bus address from Device Tree. Signed-off-by: Noralf Trønnes dwc_otg: fix summarize urb->actual_length for isochronous transfers Kernel does not copy input data of ISO transfers to userspace if actual_length is set only in ISO transfers and not summarized in urb->actual_length. Fixes raspberrypi/linux#903 --- arch/arm/include/asm/irqflags.h | 16 +- arch/arm/kernel/fiqasm.S | 4 + drivers/usb/Makefile | 1 + drivers/usb/core/generic.c | 1 + drivers/usb/core/hub.c | 2 +- drivers/usb/core/message.c | 79 + drivers/usb/core/otg_whitelist.h | 114 +- drivers/usb/gadget/file_storage.c | 3676 ++++++++++ drivers/usb/host/Kconfig | 13 + drivers/usb/host/Makefile | 2 + drivers/usb/host/dwc_common_port/Makefile | 58 + drivers/usb/host/dwc_common_port/Makefile.fbsd | 17 + drivers/usb/host/dwc_common_port/Makefile.linux | 49 + drivers/usb/host/dwc_common_port/changes.txt | 174 + drivers/usb/host/dwc_common_port/doc/doxygen.cfg | 270 + drivers/usb/host/dwc_common_port/dwc_cc.c | 532 ++ drivers/usb/host/dwc_common_port/dwc_cc.h | 224 + drivers/usb/host/dwc_common_port/dwc_common_fbsd.c | 1308 ++++ .../usb/host/dwc_common_port/dwc_common_linux.c | 1418 ++++ drivers/usb/host/dwc_common_port/dwc_common_nbsd.c | 1275 ++++ drivers/usb/host/dwc_common_port/dwc_crypto.c | 308 + drivers/usb/host/dwc_common_port/dwc_crypto.h | 111 + drivers/usb/host/dwc_common_port/dwc_dh.c | 291 + drivers/usb/host/dwc_common_port/dwc_dh.h | 106 + drivers/usb/host/dwc_common_port/dwc_list.h | 594 ++ drivers/usb/host/dwc_common_port/dwc_mem.c | 245 + drivers/usb/host/dwc_common_port/dwc_modpow.c | 636 ++ drivers/usb/host/dwc_common_port/dwc_modpow.h | 34 + drivers/usb/host/dwc_common_port/dwc_notifier.c | 319 + drivers/usb/host/dwc_common_port/dwc_notifier.h | 122 + drivers/usb/host/dwc_common_port/dwc_os.h | 1276 ++++ drivers/usb/host/dwc_common_port/usb.h | 946 +++ drivers/usb/host/dwc_otg/Makefile | 82 + drivers/usb/host/dwc_otg/doc/doxygen.cfg | 224 + drivers/usb/host/dwc_otg/dummy_audio.c | 1574 +++++ drivers/usb/host/dwc_otg/dwc_cfi_common.h | 142 + drivers/usb/host/dwc_otg/dwc_otg_adp.c | 854 +++ drivers/usb/host/dwc_otg/dwc_otg_adp.h | 80 + drivers/usb/host/dwc_otg/dwc_otg_attr.c | 1210 ++++ drivers/usb/host/dwc_otg/dwc_otg_attr.h | 89 + drivers/usb/host/dwc_otg/dwc_otg_cfi.c | 1876 +++++ drivers/usb/host/dwc_otg/dwc_otg_cfi.h | 320 + drivers/usb/host/dwc_otg/dwc_otg_cil.c | 7141 ++++++++++++++++++++ drivers/usb/host/dwc_otg/dwc_otg_cil.h | 1464 ++++ drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c | 1594 +++++ drivers/usb/host/dwc_otg/dwc_otg_core_if.h | 705 ++ drivers/usb/host/dwc_otg/dwc_otg_dbg.h | 117 + drivers/usb/host/dwc_otg/dwc_otg_driver.c | 1757 +++++ drivers/usb/host/dwc_otg/dwc_otg_driver.h | 86 + drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c | 1355 ++++ drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.h | 370 + drivers/usb/host/dwc_otg/dwc_otg_fiq_stub.S | 80 + drivers/usb/host/dwc_otg/dwc_otg_hcd.c | 4260 ++++++++++++ drivers/usb/host/dwc_otg/dwc_otg_hcd.h | 868 +++ drivers/usb/host/dwc_otg/dwc_otg_hcd_ddma.c | 1139 ++++ drivers/usb/host/dwc_otg/dwc_otg_hcd_if.h | 417 ++ drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c | 2727 ++++++++ drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c | 1007 +++ drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c | 963 +++ drivers/usb/host/dwc_otg/dwc_otg_os_dep.h | 188 + drivers/usb/host/dwc_otg/dwc_otg_pcd.c | 2725 ++++++++ drivers/usb/host/dwc_otg/dwc_otg_pcd.h | 273 + drivers/usb/host/dwc_otg/dwc_otg_pcd_if.h | 361 + drivers/usb/host/dwc_otg/dwc_otg_pcd_intr.c | 5148 ++++++++++++++ drivers/usb/host/dwc_otg/dwc_otg_pcd_linux.c | 1280 ++++ drivers/usb/host/dwc_otg/dwc_otg_regs.h | 2550 +++++++ drivers/usb/host/dwc_otg/test/Makefile | 16 + drivers/usb/host/dwc_otg/test/dwc_otg_test.pm | 337 + drivers/usb/host/dwc_otg/test/test_mod_param.pl | 133 + drivers/usb/host/dwc_otg/test/test_sysfs.pl | 193 + 70 files changed, 59910 insertions(+), 16 deletions(-) create mode 100644 drivers/usb/gadget/file_storage.c create mode 100644 drivers/usb/host/dwc_common_port/Makefile create mode 100644 drivers/usb/host/dwc_common_port/Makefile.fbsd create mode 100644 drivers/usb/host/dwc_common_port/Makefile.linux create mode 100644 drivers/usb/host/dwc_common_port/changes.txt create mode 100644 drivers/usb/host/dwc_common_port/doc/doxygen.cfg create mode 100644 drivers/usb/host/dwc_common_port/dwc_cc.c create mode 100644 drivers/usb/host/dwc_common_port/dwc_cc.h create mode 100644 drivers/usb/host/dwc_common_port/dwc_common_fbsd.c create mode 100644 drivers/usb/host/dwc_common_port/dwc_common_linux.c create mode 100644 drivers/usb/host/dwc_common_port/dwc_common_nbsd.c create mode 100644 drivers/usb/host/dwc_common_port/dwc_crypto.c create mode 100644 drivers/usb/host/dwc_common_port/dwc_crypto.h create mode 100644 drivers/usb/host/dwc_common_port/dwc_dh.c create mode 100644 drivers/usb/host/dwc_common_port/dwc_dh.h create mode 100644 drivers/usb/host/dwc_common_port/dwc_list.h create mode 100644 drivers/usb/host/dwc_common_port/dwc_mem.c create mode 100644 drivers/usb/host/dwc_common_port/dwc_modpow.c create mode 100644 drivers/usb/host/dwc_common_port/dwc_modpow.h create mode 100644 drivers/usb/host/dwc_common_port/dwc_notifier.c create mode 100644 drivers/usb/host/dwc_common_port/dwc_notifier.h create mode 100644 drivers/usb/host/dwc_common_port/dwc_os.h create mode 100644 drivers/usb/host/dwc_common_port/usb.h create mode 100644 drivers/usb/host/dwc_otg/Makefile create mode 100644 drivers/usb/host/dwc_otg/doc/doxygen.cfg create mode 100644 drivers/usb/host/dwc_otg/dummy_audio.c create mode 100644 drivers/usb/host/dwc_otg/dwc_cfi_common.h create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_adp.c create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_adp.h create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_attr.c create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_attr.h create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_cfi.c create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_cfi.h create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_cil.c create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_cil.h create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_core_if.h create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_dbg.h create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_driver.c create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_driver.h create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.h create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_fiq_stub.S create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_hcd.c create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_hcd.h create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_hcd_ddma.c create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_hcd_if.h create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_os_dep.h create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_pcd.c create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_pcd.h create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_pcd_if.h create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_pcd_intr.c create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_pcd_linux.c create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_regs.h create mode 100644 drivers/usb/host/dwc_otg/test/Makefile create mode 100644 drivers/usb/host/dwc_otg/test/dwc_otg_test.pm create mode 100644 drivers/usb/host/dwc_otg/test/test_mod_param.pl create mode 100644 drivers/usb/host/dwc_otg/test/test_sysfs.pl diff --git a/arch/arm/include/asm/irqflags.h b/arch/arm/include/asm/irqflags.h index e6b70d9d084ea5d369c237f9a3f81c92e331a429..a48ccf7c73d873eb236b61e25a9e1cbde93b60e7 100644 --- a/arch/arm/include/asm/irqflags.h +++ b/arch/arm/include/asm/irqflags.h @@ -162,13 +162,23 @@ static inline unsigned long arch_local_save_flags(void) } /* - * restore saved IRQ & FIQ state + * restore saved IRQ state */ #define arch_local_irq_restore arch_local_irq_restore static inline void arch_local_irq_restore(unsigned long flags) { - asm volatile( - " msr " IRQMASK_REG_NAME_W ", %0 @ local_irq_restore" + unsigned long temp = 0; + flags &= ~(1 << 6); + asm volatile ( + " mrs %0, cpsr" + : "=r" (temp) + : + : "memory", "cc"); + /* Preserve FIQ bit */ + temp &= (1 << 6); + flags = flags | temp; + asm volatile ( + " msr cpsr_c, %0 @ local_irq_restore" : : "r" (flags) : "memory", "cc"); diff --git a/arch/arm/kernel/fiqasm.S b/arch/arm/kernel/fiqasm.S index 8dd26e1a9bd69051a1548d99c157cad2e65ba81b..eef484756af2179be8acd76b9ddbd3e983605990 100644 --- a/arch/arm/kernel/fiqasm.S +++ b/arch/arm/kernel/fiqasm.S @@ -47,3 +47,7 @@ ENTRY(__get_fiq_regs) mov r0, r0 @ avoid hazard prior to ARMv4 ret lr ENDPROC(__get_fiq_regs) + +ENTRY(__FIQ_Branch) + mov pc, r8 +ENDPROC(__FIQ_Branch) diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile index 7791af6c102c7f4ea2c8ecdeda5cbc08fb03a55c..4f9e217700551a55b64b8ee8eaebbd8822741d4e 100644 --- a/drivers/usb/Makefile +++ b/drivers/usb/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_USB) += core/ obj-$(CONFIG_USB_SUPPORT) += phy/ +obj-$(CONFIG_USB_DWCOTG) += host/ obj-$(CONFIG_USB_DWC3) += dwc3/ obj-$(CONFIG_USB_DWC2) += dwc2/ obj-$(CONFIG_USB_ISP1760) += isp1760/ diff --git a/drivers/usb/core/generic.c b/drivers/usb/core/generic.c index bd3e0c5a6db25e7a162d922c6508de1ad0b68025..15c80079c97bb9eeec478932af88a293b5c51ca9 100644 --- a/drivers/usb/core/generic.c +++ b/drivers/usb/core/generic.c @@ -154,6 +154,7 @@ int usb_choose_configuration(struct usb_device *udev) dev_warn(&udev->dev, "no configuration chosen from %d choice%s\n", num_configs, plural(num_configs)); + dev_warn(&udev->dev, "No support over %dmA\n", udev->bus_mA); } return i; } diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index f77a4ebde7d576e9f0fa8a71a13650cd0873dc99..9142813b330302456316b0b80d7e186789e05cf9 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -5036,7 +5036,7 @@ static void port_event(struct usb_hub *hub, int port1) if (portchange & USB_PORT_STAT_C_OVERCURRENT) { u16 status = 0, unused; - dev_dbg(&port_dev->dev, "over-current change\n"); + dev_notice(&port_dev->dev, "over-current change\n"); usb_clear_port_feature(hdev, port1, USB_PORT_FEAT_C_OVER_CURRENT); msleep(100); /* Cool down */ diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 2184ef40a82ae494c11e82b4090545bd0dad30c8..39e932ea9a0e80aea29101ac5bb02f2fc35cae56 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -1908,6 +1908,85 @@ int usb_set_configuration(struct usb_device *dev, int configuration) if (cp->string == NULL && !(dev->quirks & USB_QUIRK_CONFIG_INTF_STRINGS)) cp->string = usb_cache_string(dev, cp->desc.iConfiguration); +/* Uncomment this define to enable the HS Electrical Test support */ +#define DWC_HS_ELECT_TST 1 +#ifdef DWC_HS_ELECT_TST + /* Here we implement the HS Electrical Test support. The + * tester uses a vendor ID of 0x1A0A to indicate we should + * run a special test sequence. The product ID tells us + * which sequence to run. We invoke the test sequence by + * sending a non-standard SetFeature command to our root + * hub port. Our dwc_otg_hcd_hub_control() routine will + * recognize the command and perform the desired test + * sequence. + */ + if (dev->descriptor.idVendor == 0x1A0A) { + /* HSOTG Electrical Test */ + dev_warn(&dev->dev, "VID from HSOTG Electrical Test Fixture\n"); + + if (dev->bus && dev->bus->root_hub) { + struct usb_device *hdev = dev->bus->root_hub; + dev_warn(&dev->dev, "Got PID 0x%x\n", dev->descriptor.idProduct); + + switch (dev->descriptor.idProduct) { + case 0x0101: /* TEST_SE0_NAK */ + dev_warn(&dev->dev, "TEST_SE0_NAK\n"); + usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0), + USB_REQ_SET_FEATURE, USB_RT_PORT, + USB_PORT_FEAT_TEST, 0x300, NULL, 0, HZ); + break; + + case 0x0102: /* TEST_J */ + dev_warn(&dev->dev, "TEST_J\n"); + usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0), + USB_REQ_SET_FEATURE, USB_RT_PORT, + USB_PORT_FEAT_TEST, 0x100, NULL, 0, HZ); + break; + + case 0x0103: /* TEST_K */ + dev_warn(&dev->dev, "TEST_K\n"); + usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0), + USB_REQ_SET_FEATURE, USB_RT_PORT, + USB_PORT_FEAT_TEST, 0x200, NULL, 0, HZ); + break; + + case 0x0104: /* TEST_PACKET */ + dev_warn(&dev->dev, "TEST_PACKET\n"); + usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0), + USB_REQ_SET_FEATURE, USB_RT_PORT, + USB_PORT_FEAT_TEST, 0x400, NULL, 0, HZ); + break; + + case 0x0105: /* TEST_FORCE_ENABLE */ + dev_warn(&dev->dev, "TEST_FORCE_ENABLE\n"); + usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0), + USB_REQ_SET_FEATURE, USB_RT_PORT, + USB_PORT_FEAT_TEST, 0x500, NULL, 0, HZ); + break; + + case 0x0106: /* HS_HOST_PORT_SUSPEND_RESUME */ + dev_warn(&dev->dev, "HS_HOST_PORT_SUSPEND_RESUME\n"); + usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0), + USB_REQ_SET_FEATURE, USB_RT_PORT, + USB_PORT_FEAT_TEST, 0x600, NULL, 0, 40 * HZ); + break; + + case 0x0107: /* SINGLE_STEP_GET_DEVICE_DESCRIPTOR setup */ + dev_warn(&dev->dev, "SINGLE_STEP_GET_DEVICE_DESCRIPTOR setup\n"); + usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0), + USB_REQ_SET_FEATURE, USB_RT_PORT, + USB_PORT_FEAT_TEST, 0x700, NULL, 0, 40 * HZ); + break; + + case 0x0108: /* SINGLE_STEP_GET_DEVICE_DESCRIPTOR execute */ + dev_warn(&dev->dev, "SINGLE_STEP_GET_DEVICE_DESCRIPTOR execute\n"); + usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0), + USB_REQ_SET_FEATURE, USB_RT_PORT, + USB_PORT_FEAT_TEST, 0x800, NULL, 0, 40 * HZ); + } + } + } +#endif /* DWC_HS_ELECT_TST */ /* Now that the interfaces are installed, re-enable LPM. */ usb_unlocked_enable_lpm(dev); diff --git a/drivers/usb/core/otg_whitelist.h b/drivers/usb/core/otg_whitelist.h index 085049d37d7a5b23ff8dbf44b02afc1837fe3b68..63a461a21cc14b9c6f14db7c1d03c7a2ebcdba65 100644 --- a/drivers/usb/core/otg_whitelist.h +++ b/drivers/usb/core/otg_whitelist.h @@ -19,33 +19,82 @@ static struct usb_device_id whitelist_table[] = { /* hubs are optional in OTG, but very handy ... */ +#define CERT_WITHOUT_HUBS +#if defined(CERT_WITHOUT_HUBS) +{ USB_DEVICE( 0x0000, 0x0000 ), }, /* Root HUB Only*/ +#else { USB_DEVICE_INFO(USB_CLASS_HUB, 0, 0), }, { USB_DEVICE_INFO(USB_CLASS_HUB, 0, 1), }, +{ USB_DEVICE_INFO(USB_CLASS_HUB, 0, 2), }, +#endif #ifdef CONFIG_USB_PRINTER /* ignoring nonstatic linkage! */ /* FIXME actually, printers are NOT supposed to use device classes; * they're supposed to use interface classes... */ -{ USB_DEVICE_INFO(7, 1, 1) }, -{ USB_DEVICE_INFO(7, 1, 2) }, -{ USB_DEVICE_INFO(7, 1, 3) }, +//{ USB_DEVICE_INFO(7, 1, 1) }, +//{ USB_DEVICE_INFO(7, 1, 2) }, +//{ USB_DEVICE_INFO(7, 1, 3) }, #endif #ifdef CONFIG_USB_NET_CDCETHER /* Linux-USB CDC Ethernet gadget */ -{ USB_DEVICE(0x0525, 0xa4a1), }, +//{ USB_DEVICE(0x0525, 0xa4a1), }, /* Linux-USB CDC Ethernet + RNDIS gadget */ -{ USB_DEVICE(0x0525, 0xa4a2), }, +//{ USB_DEVICE(0x0525, 0xa4a2), }, #endif #if IS_ENABLED(CONFIG_USB_TEST) /* gadget zero, for testing */ -{ USB_DEVICE(0x0525, 0xa4a0), }, +//{ USB_DEVICE(0x0525, 0xa4a0), }, #endif +/* OPT Tester */ +{ USB_DEVICE( 0x1a0a, 0x0101 ), }, /* TEST_SE0_NAK */ +{ USB_DEVICE( 0x1a0a, 0x0102 ), }, /* Test_J */ +{ USB_DEVICE( 0x1a0a, 0x0103 ), }, /* Test_K */ +{ USB_DEVICE( 0x1a0a, 0x0104 ), }, /* Test_PACKET */ +{ USB_DEVICE( 0x1a0a, 0x0105 ), }, /* Test_FORCE_ENABLE */ +{ USB_DEVICE( 0x1a0a, 0x0106 ), }, /* HS_PORT_SUSPEND_RESUME */ +{ USB_DEVICE( 0x1a0a, 0x0107 ), }, /* SINGLE_STEP_GET_DESCRIPTOR setup */ +{ USB_DEVICE( 0x1a0a, 0x0108 ), }, /* SINGLE_STEP_GET_DESCRIPTOR execute */ + +/* Sony cameras */ +{ USB_DEVICE_VER(0x054c,0x0010,0x0410, 0x0500), }, + +/* Memory Devices */ +//{ USB_DEVICE( 0x0781, 0x5150 ), }, /* SanDisk */ +//{ USB_DEVICE( 0x05DC, 0x0080 ), }, /* Lexar */ +//{ USB_DEVICE( 0x4146, 0x9281 ), }, /* IOMEGA */ +//{ USB_DEVICE( 0x067b, 0x2507 ), }, /* Hammer 20GB External HD */ +{ USB_DEVICE( 0x0EA0, 0x2168 ), }, /* Ours Technology Inc. (BUFFALO ClipDrive)*/ +//{ USB_DEVICE( 0x0457, 0x0150 ), }, /* Silicon Integrated Systems Corp. */ + +/* HP Printers */ +//{ USB_DEVICE( 0x03F0, 0x1102 ), }, /* HP Photosmart 245 */ +//{ USB_DEVICE( 0x03F0, 0x1302 ), }, /* HP Photosmart 370 Series */ + +/* Speakers */ +//{ USB_DEVICE( 0x0499, 0x3002 ), }, /* YAMAHA YST-MS35D USB Speakers */ +//{ USB_DEVICE( 0x0672, 0x1041 ), }, /* Labtec USB Headset */ + { } /* Terminating entry */ }; +static inline void report_errors(struct usb_device *dev) +{ + /* OTG MESSAGE: report errors here, customize to match your product */ + dev_info(&dev->dev, "device Vendor:%04x Product:%04x is not supported\n", + le16_to_cpu(dev->descriptor.idVendor), + le16_to_cpu(dev->descriptor.idProduct)); + if (USB_CLASS_HUB == dev->descriptor.bDeviceClass){ + dev_printk(KERN_CRIT, &dev->dev, "Unsupported Hub Topology\n"); + } else { + dev_printk(KERN_CRIT, &dev->dev, "Attached Device is not Supported\n"); + } +} + + static int is_targeted(struct usb_device *dev) { struct usb_device_id *id = whitelist_table; @@ -95,16 +144,57 @@ static int is_targeted(struct usb_device *dev) continue; return 1; - } + /* NOTE: can't use usb_match_id() since interface caches + * aren't set up yet. this is cut/paste from that code. + */ + for (id = whitelist_table; id->match_flags; id++) { +#ifdef DEBUG + dev_dbg(&dev->dev, + "ID: V:%04x P:%04x DC:%04x SC:%04x PR:%04x \n", + id->idVendor, + id->idProduct, + id->bDeviceClass, + id->bDeviceSubClass, + id->bDeviceProtocol); +#endif - /* add other match criteria here ... */ + if ((id->match_flags & USB_DEVICE_ID_MATCH_VENDOR) && + id->idVendor != le16_to_cpu(dev->descriptor.idVendor)) + continue; + if ((id->match_flags & USB_DEVICE_ID_MATCH_PRODUCT) && + id->idProduct != le16_to_cpu(dev->descriptor.idProduct)) + continue; - /* OTG MESSAGE: report errors here, customize to match your product */ - dev_err(&dev->dev, "device v%04x p%04x is not supported\n", - le16_to_cpu(dev->descriptor.idVendor), - le16_to_cpu(dev->descriptor.idProduct)); + /* No need to test id->bcdDevice_lo != 0, since 0 is never + greater than any unsigned number. */ + if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_LO) && + (id->bcdDevice_lo > le16_to_cpu(dev->descriptor.bcdDevice))) + continue; + + if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_HI) && + (id->bcdDevice_hi < le16_to_cpu(dev->descriptor.bcdDevice))) + continue; + + if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_CLASS) && + (id->bDeviceClass != dev->descriptor.bDeviceClass)) + continue; + + if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_SUBCLASS) && + (id->bDeviceSubClass != dev->descriptor.bDeviceSubClass)) + continue; + + if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_PROTOCOL) && + (id->bDeviceProtocol != dev->descriptor.bDeviceProtocol)) + continue; + + return 1; + } + } + + /* add other match criteria here ... */ + report_errors(dev); return 0; } diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c new file mode 100644 index 0000000000000000000000000000000000000000..a896d73f7a9336f5a34015c44ea5a6b04ce34f10 --- /dev/null +++ b/drivers/usb/gadget/file_storage.c @@ -0,0 +1,3676 @@ +/* + * file_storage.c -- File-backed USB Storage Gadget, for USB development + * + * Copyright (C) 2003-2008 Alan Stern + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The names of the above-listed copyright holders may not be used + * to endorse or promote products derived from this software without + * specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS + * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + + +/* + * The File-backed Storage Gadget acts as a USB Mass Storage device, + * appearing to the host as a disk drive or as a CD-ROM drive. In addition + * to providing an example of a genuinely useful gadget driver for a USB + * device, it also illustrates a technique of double-buffering for increased + * throughput. Last but not least, it gives an easy way to probe the + * behavior of the Mass Storage drivers in a USB host. + * + * Backing storage is provided by a regular file or a block device, specified + * by the "file" module parameter. Access can be limited to read-only by + * setting the optional "ro" module parameter. (For CD-ROM emulation, + * access is always read-only.) The gadget will indicate that it has + * removable media if the optional "removable" module parameter is set. + * + * The gadget supports the Control-Bulk (CB), Control-Bulk-Interrupt (CBI), + * and Bulk-Only (also known as Bulk-Bulk-Bulk or BBB) transports, selected + * by the optional "transport" module parameter. It also supports the + * following protocols: RBC (0x01), ATAPI or SFF-8020i (0x02), QIC-157 (0c03), + * UFI (0x04), SFF-8070i (0x05), and transparent SCSI (0x06), selected by + * the optional "protocol" module parameter. In addition, the default + * Vendor ID, Product ID, release number and serial number can be overridden. + * + * There is support for multiple logical units (LUNs), each of which has + * its own backing file. The number of LUNs can be set using the optional + * "luns" module parameter (anywhere from 1 to 8), and the corresponding + * files are specified using comma-separated lists for "file" and "ro". + * The default number of LUNs is taken from the number of "file" elements; + * it is 1 if "file" is not given. If "removable" is not set then a backing + * file must be specified for each LUN. If it is set, then an unspecified + * or empty backing filename means the LUN's medium is not loaded. Ideally + * each LUN would be settable independently as a disk drive or a CD-ROM + * drive, but currently all LUNs have to be the same type. The CD-ROM + * emulation includes a single data track and no audio tracks; hence there + * need be only one backing file per LUN. + * + * Requirements are modest; only a bulk-in and a bulk-out endpoint are + * needed (an interrupt-out endpoint is also needed for CBI). The memory + * requirement amounts to two 16K buffers, size configurable by a parameter. + * Support is included for both full-speed and high-speed operation. + * + * Note that the driver is slightly non-portable in that it assumes a + * single memory/DMA buffer will be useable for bulk-in, bulk-out, and + * interrupt-in endpoints. With most device controllers this isn't an + * issue, but there may be some with hardware restrictions that prevent + * a buffer from being used by more than one endpoint. + * + * Module options: + * + * file=filename[,filename...] + * Required if "removable" is not set, names of + * the files or block devices used for + * backing storage + * serial=HHHH... Required serial number (string of hex chars) + * ro=b[,b...] Default false, booleans for read-only access + * removable Default false, boolean for removable media + * luns=N Default N = number of filenames, number of + * LUNs to support + * nofua=b[,b...] Default false, booleans for ignore FUA flag + * in SCSI WRITE(10,12) commands + * stall Default determined according to the type of + * USB device controller (usually true), + * boolean to permit the driver to halt + * bulk endpoints + * cdrom Default false, boolean for whether to emulate + * a CD-ROM drive + * transport=XXX Default BBB, transport name (CB, CBI, or BBB) + * protocol=YYY Default SCSI, protocol name (RBC, 8020 or + * ATAPI, QIC, UFI, 8070, or SCSI; + * also 1 - 6) + * vendor=0xVVVV Default 0x0525 (NetChip), USB Vendor ID + * product=0xPPPP Default 0xa4a5 (FSG), USB Product ID + * release=0xRRRR Override the USB release number (bcdDevice) + * buflen=N Default N=16384, buffer size used (will be + * rounded down to a multiple of + * PAGE_CACHE_SIZE) + * + * If CONFIG_USB_FILE_STORAGE_TEST is not set, only the "file", "serial", "ro", + * "removable", "luns", "nofua", "stall", and "cdrom" options are available; + * default values are used for everything else. + * + * The pathnames of the backing files and the ro settings are available in + * the attribute files "file", "nofua", and "ro" in the lun subdirectory of + * the gadget's sysfs directory. If the "removable" option is set, writing to + * these files will simulate ejecting/loading the medium (writing an empty + * line means eject) and adjusting a write-enable tab. Changes to the ro + * setting are not allowed when the medium is loaded or if CD-ROM emulation + * is being used. + * + * This gadget driver is heavily based on "Gadget Zero" by David Brownell. + * The driver's SCSI command interface was based on the "Information + * technology - Small Computer System Interface - 2" document from + * X3T9.2 Project 375D, Revision 10L, 7-SEP-93, available at + * . The single exception + * is opcode 0x23 (READ FORMAT CAPACITIES), which was based on the + * "Universal Serial Bus Mass Storage Class UFI Command Specification" + * document, Revision 1.0, December 14, 1998, available at + * . + */ + + +/* + * Driver Design + * + * The FSG driver is fairly straightforward. There is a main kernel + * thread that handles most of the work. Interrupt routines field + * callbacks from the controller driver: bulk- and interrupt-request + * completion notifications, endpoint-0 events, and disconnect events. + * Completion events are passed to the main thread by wakeup calls. Many + * ep0 requests are handled at interrupt time, but SetInterface, + * SetConfiguration, and device reset requests are forwarded to the + * thread in the form of "exceptions" using SIGUSR1 signals (since they + * should interrupt any ongoing file I/O operations). + * + * The thread's main routine implements the standard command/data/status + * parts of a SCSI interaction. It and its subroutines are full of tests + * for pending signals/exceptions -- all this polling is necessary since + * the kernel has no setjmp/longjmp equivalents. (Maybe this is an + * indication that the driver really wants to be running in userspace.) + * An important point is that so long as the thread is alive it keeps an + * open reference to the backing file. This will prevent unmounting + * the backing file's underlying filesystem and could cause problems + * during system shutdown, for example. To prevent such problems, the + * thread catches INT, TERM, and KILL signals and converts them into + * an EXIT exception. + * + * In normal operation the main thread is started during the gadget's + * fsg_bind() callback and stopped during fsg_unbind(). But it can also + * exit when it receives a signal, and there's no point leaving the + * gadget running when the thread is dead. So just before the thread + * exits, it deregisters the gadget driver. This makes things a little + * tricky: The driver is deregistered at two places, and the exiting + * thread can indirectly call fsg_unbind() which in turn can tell the + * thread to exit. The first problem is resolved through the use of the + * REGISTERED atomic bitflag; the driver will only be deregistered once. + * The second problem is resolved by having fsg_unbind() check + * fsg->state; it won't try to stop the thread if the state is already + * FSG_STATE_TERMINATED. + * + * To provide maximum throughput, the driver uses a circular pipeline of + * buffer heads (struct fsg_buffhd). In principle the pipeline can be + * arbitrarily long; in practice the benefits don't justify having more + * than 2 stages (i.e., double buffering). But it helps to think of the + * pipeline as being a long one. Each buffer head contains a bulk-in and + * a bulk-out request pointer (since the buffer can be used for both + * output and input -- directions always are given from the host's + * point of view) as well as a pointer to the buffer and various state + * variables. + * + * Use of the pipeline follows a simple protocol. There is a variable + * (fsg->next_buffhd_to_fill) that points to the next buffer head to use. + * At any time that buffer head may still be in use from an earlier + * request, so each buffer head has a state variable indicating whether + * it is EMPTY, FULL, or BUSY. Typical use involves waiting for the + * buffer head to be EMPTY, filling the buffer either by file I/O or by + * USB I/O (during which the buffer head is BUSY), and marking the buffer + * head FULL when the I/O is complete. Then the buffer will be emptied + * (again possibly by USB I/O, during which it is marked BUSY) and + * finally marked EMPTY again (possibly by a completion routine). + * + * A module parameter tells the driver to avoid stalling the bulk + * endpoints wherever the transport specification allows. This is + * necessary for some UDCs like the SuperH, which cannot reliably clear a + * halt on a bulk endpoint. However, under certain circumstances the + * Bulk-only specification requires a stall. In such cases the driver + * will halt the endpoint and set a flag indicating that it should clear + * the halt in software during the next device reset. Hopefully this + * will permit everything to work correctly. Furthermore, although the + * specification allows the bulk-out endpoint to halt when the host sends + * too much data, implementing this would cause an unavoidable race. + * The driver will always use the "no-stall" approach for OUT transfers. + * + * One subtle point concerns sending status-stage responses for ep0 + * requests. Some of these requests, such as device reset, can involve + * interrupting an ongoing file I/O operation, which might take an + * arbitrarily long time. During that delay the host might give up on + * the original ep0 request and issue a new one. When that happens the + * driver should not notify the host about completion of the original + * request, as the host will no longer be waiting for it. So the driver + * assigns to each ep0 request a unique tag, and it keeps track of the + * tag value of the request associated with a long-running exception + * (device-reset, interface-change, or configuration-change). When the + * exception handler is finished, the status-stage response is submitted + * only if the current ep0 request tag is equal to the exception request + * tag. Thus only the most recently received ep0 request will get a + * status-stage response. + * + * Warning: This driver source file is too long. It ought to be split up + * into a header file plus about 3 separate .c files, to handle the details + * of the Gadget, USB Mass Storage, and SCSI protocols. + */ + + +/* #define VERBOSE_DEBUG */ +/* #define DUMP_MSGS */ + + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include "gadget_chips.h" + + + +/* + * Kbuild is not very cooperative with respect to linking separately + * compiled library objects into one module. So for now we won't use + * separate compilation ... ensuring init/exit sections work to shrink + * the runtime footprint, and giving us at least some parts of what + * a "gcc --combine ... part1.c part2.c part3.c ... " build would. + */ +#include "usbstring.c" +#include "config.c" +#include "epautoconf.c" + +/*-------------------------------------------------------------------------*/ + +#define DRIVER_DESC "File-backed Storage Gadget" +#define DRIVER_NAME "g_file_storage" +#define DRIVER_VERSION "1 September 2010" + +static char fsg_string_manufacturer[64]; +static const char fsg_string_product[] = DRIVER_DESC; +static const char fsg_string_config[] = "Self-powered"; +static const char fsg_string_interface[] = "Mass Storage"; + + +#include "storage_common.c" + + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_AUTHOR("Alan Stern"); +MODULE_LICENSE("Dual BSD/GPL"); + +/* + * This driver assumes self-powered hardware and has no way for users to + * trigger remote wakeup. It uses autoconfiguration to select endpoints + * and endpoint addresses. + */ + + +/*-------------------------------------------------------------------------*/ + + +/* Encapsulate the module parameter settings */ + +static struct { + char *file[FSG_MAX_LUNS]; + char *serial; + bool ro[FSG_MAX_LUNS]; + bool nofua[FSG_MAX_LUNS]; + unsigned int num_filenames; + unsigned int num_ros; + unsigned int num_nofuas; + unsigned int nluns; + + bool removable; + bool can_stall; + bool cdrom; + + char *transport_parm; + char *protocol_parm; + unsigned short vendor; + unsigned short product; + unsigned short release; + unsigned int buflen; + + int transport_type; + char *transport_name; + int protocol_type; + char *protocol_name; + +} mod_data = { // Default values + .transport_parm = "BBB", + .protocol_parm = "SCSI", + .removable = 0, + .can_stall = 1, + .cdrom = 0, + .vendor = FSG_VENDOR_ID, + .product = FSG_PRODUCT_ID, + .release = 0xffff, // Use controller chip type + .buflen = 16384, + }; + + +module_param_array_named(file, mod_data.file, charp, &mod_data.num_filenames, + S_IRUGO); +MODULE_PARM_DESC(file, "names of backing files or devices"); + +module_param_named(serial, mod_data.serial, charp, S_IRUGO); +MODULE_PARM_DESC(serial, "USB serial number"); + +module_param_array_named(ro, mod_data.ro, bool, &mod_data.num_ros, S_IRUGO); +MODULE_PARM_DESC(ro, "true to force read-only"); + +module_param_array_named(nofua, mod_data.nofua, bool, &mod_data.num_nofuas, + S_IRUGO); +MODULE_PARM_DESC(nofua, "true to ignore SCSI WRITE(10,12) FUA bit"); + +module_param_named(luns, mod_data.nluns, uint, S_IRUGO); +MODULE_PARM_DESC(luns, "number of LUNs"); + +module_param_named(removable, mod_data.removable, bool, S_IRUGO); +MODULE_PARM_DESC(removable, "true to simulate removable media"); + +module_param_named(stall, mod_data.can_stall, bool, S_IRUGO); +MODULE_PARM_DESC(stall, "false to prevent bulk stalls"); + +module_param_named(cdrom, mod_data.cdrom, bool, S_IRUGO); +MODULE_PARM_DESC(cdrom, "true to emulate cdrom instead of disk"); + +/* In the non-TEST version, only the module parameters listed above + * are available. */ +#ifdef CONFIG_USB_FILE_STORAGE_TEST + +module_param_named(transport, mod_data.transport_parm, charp, S_IRUGO); +MODULE_PARM_DESC(transport, "type of transport (BBB, CBI, or CB)"); + +module_param_named(protocol, mod_data.protocol_parm, charp, S_IRUGO); +MODULE_PARM_DESC(protocol, "type of protocol (RBC, 8020, QIC, UFI, " + "8070, or SCSI)"); + +module_param_named(vendor, mod_data.vendor, ushort, S_IRUGO); +MODULE_PARM_DESC(vendor, "USB Vendor ID"); + +module_param_named(product, mod_data.product, ushort, S_IRUGO); +MODULE_PARM_DESC(product, "USB Product ID"); + +module_param_named(release, mod_data.release, ushort, S_IRUGO); +MODULE_PARM_DESC(release, "USB release number"); + +module_param_named(buflen, mod_data.buflen, uint, S_IRUGO); +MODULE_PARM_DESC(buflen, "I/O buffer size"); + +#endif /* CONFIG_USB_FILE_STORAGE_TEST */ + + +/* + * These definitions will permit the compiler to avoid generating code for + * parts of the driver that aren't used in the non-TEST version. Even gcc + * can recognize when a test of a constant expression yields a dead code + * path. + */ + +#ifdef CONFIG_USB_FILE_STORAGE_TEST + +#define transport_is_bbb() (mod_data.transport_type == USB_PR_BULK) +#define transport_is_cbi() (mod_data.transport_type == USB_PR_CBI) +#define protocol_is_scsi() (mod_data.protocol_type == USB_SC_SCSI) + +#else + +#define transport_is_bbb() 1 +#define transport_is_cbi() 0 +#define protocol_is_scsi() 1 + +#endif /* CONFIG_USB_FILE_STORAGE_TEST */ + + +/*-------------------------------------------------------------------------*/ + + +struct fsg_dev { + /* lock protects: state, all the req_busy's, and cbbuf_cmnd */ + spinlock_t lock; + struct usb_gadget *gadget; + + /* filesem protects: backing files in use */ + struct rw_semaphore filesem; + + /* reference counting: wait until all LUNs are released */ + struct kref ref; + + struct usb_ep *ep0; // Handy copy of gadget->ep0 + struct usb_request *ep0req; // For control responses + unsigned int ep0_req_tag; + const char *ep0req_name; + + struct usb_request *intreq; // For interrupt responses + int intreq_busy; + struct fsg_buffhd *intr_buffhd; + + unsigned int bulk_out_maxpacket; + enum fsg_state state; // For exception handling + unsigned int exception_req_tag; + + u8 config, new_config; + + unsigned int running : 1; + unsigned int bulk_in_enabled : 1; + unsigned int bulk_out_enabled : 1; + unsigned int intr_in_enabled : 1; + unsigned int phase_error : 1; + unsigned int short_packet_received : 1; + unsigned int bad_lun_okay : 1; + + unsigned long atomic_bitflags; +#define REGISTERED 0 +#define IGNORE_BULK_OUT 1 +#define SUSPENDED 2 + + struct usb_ep *bulk_in; + struct usb_ep *bulk_out; + struct usb_ep *intr_in; + + struct fsg_buffhd *next_buffhd_to_fill; + struct fsg_buffhd *next_buffhd_to_drain; + + int thread_wakeup_needed; + struct completion thread_notifier; + struct task_struct *thread_task; + + int cmnd_size; + u8 cmnd[MAX_COMMAND_SIZE]; + enum data_direction data_dir; + u32 data_size; + u32 data_size_from_cmnd; + u32 tag; + unsigned int lun; + u32 residue; + u32 usb_amount_left; + + /* The CB protocol offers no way for a host to know when a command + * has completed. As a result the next command may arrive early, + * and we will still have to handle it. For that reason we need + * a buffer to store new commands when using CB (or CBI, which + * does not oblige a host to wait for command completion either). */ + int cbbuf_cmnd_size; + u8 cbbuf_cmnd[MAX_COMMAND_SIZE]; + + unsigned int nluns; + struct fsg_lun *luns; + struct fsg_lun *curlun; + /* Must be the last entry */ + struct fsg_buffhd buffhds[]; +}; + +typedef void (*fsg_routine_t)(struct fsg_dev *); + +static int exception_in_progress(struct fsg_dev *fsg) +{ + return (fsg->state > FSG_STATE_IDLE); +} + +/* Make bulk-out requests be divisible by the maxpacket size */ +static void set_bulk_out_req_length(struct fsg_dev *fsg, + struct fsg_buffhd *bh, unsigned int length) +{ + unsigned int rem; + + bh->bulk_out_intended_length = length; + rem = length % fsg->bulk_out_maxpacket; + if (rem > 0) + length += fsg->bulk_out_maxpacket - rem; + bh->outreq->length = length; +} + +static struct fsg_dev *the_fsg; +static struct usb_gadget_driver fsg_driver; + + +/*-------------------------------------------------------------------------*/ + +static int fsg_set_halt(struct fsg_dev *fsg, struct usb_ep *ep) +{ + const char *name; + + if (ep == fsg->bulk_in) + name = "bulk-in"; + else if (ep == fsg->bulk_out) + name = "bulk-out"; + else + name = ep->name; + DBG(fsg, "%s set halt\n", name); + return usb_ep_set_halt(ep); +} + + +/*-------------------------------------------------------------------------*/ + +/* + * DESCRIPTORS ... most are static, but strings and (full) configuration + * descriptors are built on demand. Also the (static) config and interface + * descriptors are adjusted during fsg_bind(). + */ + +/* There is only one configuration. */ +#define CONFIG_VALUE 1 + +static struct usb_device_descriptor +device_desc = { + .bLength = sizeof device_desc, + .bDescriptorType = USB_DT_DEVICE, + + .bcdUSB = cpu_to_le16(0x0200), + .bDeviceClass = USB_CLASS_PER_INTERFACE, + + /* The next three values can be overridden by module parameters */ + .idVendor = cpu_to_le16(FSG_VENDOR_ID), + .idProduct = cpu_to_le16(FSG_PRODUCT_ID), + .bcdDevice = cpu_to_le16(0xffff), + + .iManufacturer = FSG_STRING_MANUFACTURER, + .iProduct = FSG_STRING_PRODUCT, + .iSerialNumber = FSG_STRING_SERIAL, + .bNumConfigurations = 1, +}; + +static struct usb_config_descriptor +config_desc = { + .bLength = sizeof config_desc, + .bDescriptorType = USB_DT_CONFIG, + + /* wTotalLength computed by usb_gadget_config_buf() */ + .bNumInterfaces = 1, + .bConfigurationValue = CONFIG_VALUE, + .iConfiguration = FSG_STRING_CONFIG, + .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER, + .bMaxPower = CONFIG_USB_GADGET_VBUS_DRAW / 2, +}; + + +static struct usb_qualifier_descriptor +dev_qualifier = { + .bLength = sizeof dev_qualifier, + .bDescriptorType = USB_DT_DEVICE_QUALIFIER, + + .bcdUSB = cpu_to_le16(0x0200), + .bDeviceClass = USB_CLASS_PER_INTERFACE, + + .bNumConfigurations = 1, +}; + +static int populate_bos(struct fsg_dev *fsg, u8 *buf) +{ + memcpy(buf, &fsg_bos_desc, USB_DT_BOS_SIZE); + buf += USB_DT_BOS_SIZE; + + memcpy(buf, &fsg_ext_cap_desc, USB_DT_USB_EXT_CAP_SIZE); + buf += USB_DT_USB_EXT_CAP_SIZE; + + memcpy(buf, &fsg_ss_cap_desc, USB_DT_USB_SS_CAP_SIZE); + + return USB_DT_BOS_SIZE + USB_DT_USB_SS_CAP_SIZE + + USB_DT_USB_EXT_CAP_SIZE; +} + +/* + * Config descriptors must agree with the code that sets configurations + * and with code managing interfaces and their altsettings. They must + * also handle different speeds and other-speed requests. + */ +static int populate_config_buf(struct usb_gadget *gadget, + u8 *buf, u8 type, unsigned index) +{ + enum usb_device_speed speed = gadget->speed; + int len; + const struct usb_descriptor_header **function; + + if (index > 0) + return -EINVAL; + + if (gadget_is_dualspeed(gadget) && type == USB_DT_OTHER_SPEED_CONFIG) + speed = (USB_SPEED_FULL + USB_SPEED_HIGH) - speed; + function = gadget_is_dualspeed(gadget) && speed == USB_SPEED_HIGH + ? (const struct usb_descriptor_header **)fsg_hs_function + : (const struct usb_descriptor_header **)fsg_fs_function; + + /* for now, don't advertise srp-only devices */ + if (!gadget_is_otg(gadget)) + function++; + + len = usb_gadget_config_buf(&config_desc, buf, EP0_BUFSIZE, function); + ((struct usb_config_descriptor *) buf)->bDescriptorType = type; + return len; +} + + +/*-------------------------------------------------------------------------*/ + +/* These routines may be called in process context or in_irq */ + +/* Caller must hold fsg->lock */ +static void wakeup_thread(struct fsg_dev *fsg) +{ + /* Tell the main thread that something has happened */ + fsg->thread_wakeup_needed = 1; + if (fsg->thread_task) + wake_up_process(fsg->thread_task); +} + + +static void raise_exception(struct fsg_dev *fsg, enum fsg_state new_state) +{ + unsigned long flags; + + /* Do nothing if a higher-priority exception is already in progress. + * If a lower-or-equal priority exception is in progress, preempt it + * and notify the main thread by sending it a signal. */ + spin_lock_irqsave(&fsg->lock, flags); + if (fsg->state <= new_state) { + fsg->exception_req_tag = fsg->ep0_req_tag; + fsg->state = new_state; + if (fsg->thread_task) + send_sig_info(SIGUSR1, SEND_SIG_FORCED, + fsg->thread_task); + } + spin_unlock_irqrestore(&fsg->lock, flags); +} + + +/*-------------------------------------------------------------------------*/ + +/* The disconnect callback and ep0 routines. These always run in_irq, + * except that ep0_queue() is called in the main thread to acknowledge + * completion of various requests: set config, set interface, and + * Bulk-only device reset. */ + +static void fsg_disconnect(struct usb_gadget *gadget) +{ + struct fsg_dev *fsg = get_gadget_data(gadget); + + DBG(fsg, "disconnect or port reset\n"); + raise_exception(fsg, FSG_STATE_DISCONNECT); +} + + +static int ep0_queue(struct fsg_dev *fsg) +{ + int rc; + + rc = usb_ep_queue(fsg->ep0, fsg->ep0req, GFP_ATOMIC); + if (rc != 0 && rc != -ESHUTDOWN) { + + /* We can't do much more than wait for a reset */ + WARNING(fsg, "error in submission: %s --> %d\n", + fsg->ep0->name, rc); + } + return rc; +} + +static void ep0_complete(struct usb_ep *ep, struct usb_request *req) +{ + struct fsg_dev *fsg = ep->driver_data; + + if (req->actual > 0) + dump_msg(fsg, fsg->ep0req_name, req->buf, req->actual); + if (req->status || req->actual != req->length) + DBG(fsg, "%s --> %d, %u/%u\n", __func__, + req->status, req->actual, req->length); + if (req->status == -ECONNRESET) // Request was cancelled + usb_ep_fifo_flush(ep); + + if (req->status == 0 && req->context) + ((fsg_routine_t) (req->context))(fsg); +} + + +/*-------------------------------------------------------------------------*/ + +/* Bulk and interrupt endpoint completion handlers. + * These always run in_irq. */ + +static void bulk_in_complete(struct usb_ep *ep, struct usb_request *req) +{ + struct fsg_dev *fsg = ep->driver_data; + struct fsg_buffhd *bh = req->context; + + if (req->status || req->actual != req->length) + DBG(fsg, "%s --> %d, %u/%u\n", __func__, + req->status, req->actual, req->length); + if (req->status == -ECONNRESET) // Request was cancelled + usb_ep_fifo_flush(ep); + + /* Hold the lock while we update the request and buffer states */ + smp_wmb(); + spin_lock(&fsg->lock); + bh->inreq_busy = 0; + bh->state = BUF_STATE_EMPTY; + wakeup_thread(fsg); + spin_unlock(&fsg->lock); +} + +static void bulk_out_complete(struct usb_ep *ep, struct usb_request *req) +{ + struct fsg_dev *fsg = ep->driver_data; + struct fsg_buffhd *bh = req->context; + + dump_msg(fsg, "bulk-out", req->buf, req->actual); + if (req->status || req->actual != bh->bulk_out_intended_length) + DBG(fsg, "%s --> %d, %u/%u\n", __func__, + req->status, req->actual, + bh->bulk_out_intended_length); + if (req->status == -ECONNRESET) // Request was cancelled + usb_ep_fifo_flush(ep); + + /* Hold the lock while we update the request and buffer states */ + smp_wmb(); + spin_lock(&fsg->lock); + bh->outreq_busy = 0; + bh->state = BUF_STATE_FULL; + wakeup_thread(fsg); + spin_unlock(&fsg->lock); +} + + +#ifdef CONFIG_USB_FILE_STORAGE_TEST +static void intr_in_complete(struct usb_ep *ep, struct usb_request *req) +{ + struct fsg_dev *fsg = ep->driver_data; + struct fsg_buffhd *bh = req->context; + + if (req->status || req->actual != req->length) + DBG(fsg, "%s --> %d, %u/%u\n", __func__, + req->status, req->actual, req->length); + if (req->status == -ECONNRESET) // Request was cancelled + usb_ep_fifo_flush(ep); + + /* Hold the lock while we update the request and buffer states */ + smp_wmb(); + spin_lock(&fsg->lock); + fsg->intreq_busy = 0; + bh->state = BUF_STATE_EMPTY; + wakeup_thread(fsg); + spin_unlock(&fsg->lock); +} + +#else +static void intr_in_complete(struct usb_ep *ep, struct usb_request *req) +{} +#endif /* CONFIG_USB_FILE_STORAGE_TEST */ + + +/*-------------------------------------------------------------------------*/ + +/* Ep0 class-specific handlers. These always run in_irq. */ + +#ifdef CONFIG_USB_FILE_STORAGE_TEST +static void received_cbi_adsc(struct fsg_dev *fsg, struct fsg_buffhd *bh) +{ + struct usb_request *req = fsg->ep0req; + static u8 cbi_reset_cmnd[6] = { + SEND_DIAGNOSTIC, 4, 0xff, 0xff, 0xff, 0xff}; + + /* Error in command transfer? */ + if (req->status || req->length != req->actual || + req->actual < 6 || req->actual > MAX_COMMAND_SIZE) { + + /* Not all controllers allow a protocol stall after + * receiving control-out data, but we'll try anyway. */ + fsg_set_halt(fsg, fsg->ep0); + return; // Wait for reset + } + + /* Is it the special reset command? */ + if (req->actual >= sizeof cbi_reset_cmnd && + memcmp(req->buf, cbi_reset_cmnd, + sizeof cbi_reset_cmnd) == 0) { + + /* Raise an exception to stop the current operation + * and reinitialize our state. */ + DBG(fsg, "cbi reset request\n"); + raise_exception(fsg, FSG_STATE_RESET); + return; + } + + VDBG(fsg, "CB[I] accept device-specific command\n"); + spin_lock(&fsg->lock); + + /* Save the command for later */ + if (fsg->cbbuf_cmnd_size) + WARNING(fsg, "CB[I] overwriting previous command\n"); + fsg->cbbuf_cmnd_size = req->actual; + memcpy(fsg->cbbuf_cmnd, req->buf, fsg->cbbuf_cmnd_size); + + wakeup_thread(fsg); + spin_unlock(&fsg->lock); +} + +#else +static void received_cbi_adsc(struct fsg_dev *fsg, struct fsg_buffhd *bh) +{} +#endif /* CONFIG_USB_FILE_STORAGE_TEST */ + + +static int class_setup_req(struct fsg_dev *fsg, + const struct usb_ctrlrequest *ctrl) +{ + struct usb_request *req = fsg->ep0req; + int value = -EOPNOTSUPP; + u16 w_index = le16_to_cpu(ctrl->wIndex); + u16 w_value = le16_to_cpu(ctrl->wValue); + u16 w_length = le16_to_cpu(ctrl->wLength); + + if (!fsg->config) + return value; + + /* Handle Bulk-only class-specific requests */ + if (transport_is_bbb()) { + switch (ctrl->bRequest) { + + case US_BULK_RESET_REQUEST: + if (ctrl->bRequestType != (USB_DIR_OUT | + USB_TYPE_CLASS | USB_RECIP_INTERFACE)) + break; + if (w_index != 0 || w_value != 0 || w_length != 0) { + value = -EDOM; + break; + } + + /* Raise an exception to stop the current operation + * and reinitialize our state. */ + DBG(fsg, "bulk reset request\n"); + raise_exception(fsg, FSG_STATE_RESET); + value = DELAYED_STATUS; + break; + + case US_BULK_GET_MAX_LUN: + if (ctrl->bRequestType != (USB_DIR_IN | + USB_TYPE_CLASS | USB_RECIP_INTERFACE)) + break; + if (w_index != 0 || w_value != 0 || w_length != 1) { + value = -EDOM; + break; + } + VDBG(fsg, "get max LUN\n"); + *(u8 *) req->buf = fsg->nluns - 1; + value = 1; + break; + } + } + + /* Handle CBI class-specific requests */ + else { + switch (ctrl->bRequest) { + + case USB_CBI_ADSC_REQUEST: + if (ctrl->bRequestType != (USB_DIR_OUT | + USB_TYPE_CLASS | USB_RECIP_INTERFACE)) + break; + if (w_index != 0 || w_value != 0) { + value = -EDOM; + break; + } + if (w_length > MAX_COMMAND_SIZE) { + value = -EOVERFLOW; + break; + } + value = w_length; + fsg->ep0req->context = received_cbi_adsc; + break; + } + } + + if (value == -EOPNOTSUPP) + VDBG(fsg, + "unknown class-specific control req " + "%02x.%02x v%04x i%04x l%u\n", + ctrl->bRequestType, ctrl->bRequest, + le16_to_cpu(ctrl->wValue), w_index, w_length); + return value; +} + + +/*-------------------------------------------------------------------------*/ + +/* Ep0 standard request handlers. These always run in_irq. */ + +static int standard_setup_req(struct fsg_dev *fsg, + const struct usb_ctrlrequest *ctrl) +{ + struct usb_request *req = fsg->ep0req; + int value = -EOPNOTSUPP; + u16 w_index = le16_to_cpu(ctrl->wIndex); + u16 w_value = le16_to_cpu(ctrl->wValue); + + /* Usually this just stores reply data in the pre-allocated ep0 buffer, + * but config change events will also reconfigure hardware. */ + switch (ctrl->bRequest) { + + case USB_REQ_GET_DESCRIPTOR: + if (ctrl->bRequestType != (USB_DIR_IN | USB_TYPE_STANDARD | + USB_RECIP_DEVICE)) + break; + switch (w_value >> 8) { + + case USB_DT_DEVICE: + VDBG(fsg, "get device descriptor\n"); + device_desc.bMaxPacketSize0 = fsg->ep0->maxpacket; + value = sizeof device_desc; + memcpy(req->buf, &device_desc, value); + break; + case USB_DT_DEVICE_QUALIFIER: + VDBG(fsg, "get device qualifier\n"); + if (!gadget_is_dualspeed(fsg->gadget) || + fsg->gadget->speed == USB_SPEED_SUPER) + break; + /* + * Assume ep0 uses the same maxpacket value for both + * speeds + */ + dev_qualifier.bMaxPacketSize0 = fsg->ep0->maxpacket; + value = sizeof dev_qualifier; + memcpy(req->buf, &dev_qualifier, value); + break; + + case USB_DT_OTHER_SPEED_CONFIG: + VDBG(fsg, "get other-speed config descriptor\n"); + if (!gadget_is_dualspeed(fsg->gadget) || + fsg->gadget->speed == USB_SPEED_SUPER) + break; + goto get_config; + case USB_DT_CONFIG: + VDBG(fsg, "get configuration descriptor\n"); +get_config: + value = populate_config_buf(fsg->gadget, + req->buf, + w_value >> 8, + w_value & 0xff); + break; + + case USB_DT_STRING: + VDBG(fsg, "get string descriptor\n"); + + /* wIndex == language code */ + value = usb_gadget_get_string(&fsg_stringtab, + w_value & 0xff, req->buf); + break; + + case USB_DT_BOS: + VDBG(fsg, "get bos descriptor\n"); + + if (gadget_is_superspeed(fsg->gadget)) + value = populate_bos(fsg, req->buf); + break; + } + + break; + + /* One config, two speeds */ + case USB_REQ_SET_CONFIGURATION: + if (ctrl->bRequestType != (USB_DIR_OUT | USB_TYPE_STANDARD | + USB_RECIP_DEVICE)) + break; + VDBG(fsg, "set configuration\n"); + if (w_value == CONFIG_VALUE || w_value == 0) { + fsg->new_config = w_value; + + /* Raise an exception to wipe out previous transaction + * state (queued bufs, etc) and set the new config. */ + raise_exception(fsg, FSG_STATE_CONFIG_CHANGE); + value = DELAYED_STATUS; + } + break; + case USB_REQ_GET_CONFIGURATION: + if (ctrl->bRequestType != (USB_DIR_IN | USB_TYPE_STANDARD | + USB_RECIP_DEVICE)) + break; + VDBG(fsg, "get configuration\n"); + *(u8 *) req->buf = fsg->config; + value = 1; + break; + + case USB_REQ_SET_INTERFACE: + if (ctrl->bRequestType != (USB_DIR_OUT| USB_TYPE_STANDARD | + USB_RECIP_INTERFACE)) + break; + if (fsg->config && w_index == 0) { + + /* Raise an exception to wipe out previous transaction + * state (queued bufs, etc) and install the new + * interface altsetting. */ + raise_exception(fsg, FSG_STATE_INTERFACE_CHANGE); + value = DELAYED_STATUS; + } + break; + case USB_REQ_GET_INTERFACE: + if (ctrl->bRequestType != (USB_DIR_IN | USB_TYPE_STANDARD | + USB_RECIP_INTERFACE)) + break; + if (!fsg->config) + break; + if (w_index != 0) { + value = -EDOM; + break; + } + VDBG(fsg, "get interface\n"); + *(u8 *) req->buf = 0; + value = 1; + break; + + default: + VDBG(fsg, + "unknown control req %02x.%02x v%04x i%04x l%u\n", + ctrl->bRequestType, ctrl->bRequest, + w_value, w_index, le16_to_cpu(ctrl->wLength)); + } + + return value; +} + + +static int fsg_setup(struct usb_gadget *gadget, + const struct usb_ctrlrequest *ctrl) +{ + struct fsg_dev *fsg = get_gadget_data(gadget); + int rc; + int w_length = le16_to_cpu(ctrl->wLength); + + ++fsg->ep0_req_tag; // Record arrival of a new request + fsg->ep0req->context = NULL; + fsg->ep0req->length = 0; + dump_msg(fsg, "ep0-setup", (u8 *) ctrl, sizeof(*ctrl)); + + if ((ctrl->bRequestType & USB_TYPE_MASK) == USB_TYPE_CLASS) + rc = class_setup_req(fsg, ctrl); + else + rc = standard_setup_req(fsg, ctrl); + + /* Respond with data/status or defer until later? */ + if (rc >= 0 && rc != DELAYED_STATUS) { + rc = min(rc, w_length); + fsg->ep0req->length = rc; + fsg->ep0req->zero = rc < w_length; + fsg->ep0req_name = (ctrl->bRequestType & USB_DIR_IN ? + "ep0-in" : "ep0-out"); + rc = ep0_queue(fsg); + } + + /* Device either stalls (rc < 0) or reports success */ + return rc; +} + + +/*-------------------------------------------------------------------------*/ + +/* All the following routines run in process context */ + + +/* Use this for bulk or interrupt transfers, not ep0 */ +static void start_transfer(struct fsg_dev *fsg, struct usb_ep *ep, + struct usb_request *req, int *pbusy, + enum fsg_buffer_state *state) +{ + int rc; + + if (ep == fsg->bulk_in) + dump_msg(fsg, "bulk-in", req->buf, req->length); + else if (ep == fsg->intr_in) + dump_msg(fsg, "intr-in", req->buf, req->length); + + spin_lock_irq(&fsg->lock); + *pbusy = 1; + *state = BUF_STATE_BUSY; + spin_unlock_irq(&fsg->lock); + rc = usb_ep_queue(ep, req, GFP_KERNEL); + if (rc != 0) { + *pbusy = 0; + *state = BUF_STATE_EMPTY; + + /* We can't do much more than wait for a reset */ + + /* Note: currently the net2280 driver fails zero-length + * submissions if DMA is enabled. */ + if (rc != -ESHUTDOWN && !(rc == -EOPNOTSUPP && + req->length == 0)) + WARNING(fsg, "error in submission: %s --> %d\n", + ep->name, rc); + } +} + + +static int sleep_thread(struct fsg_dev *fsg) +{ + int rc = 0; + + /* Wait until a signal arrives or we are woken up */ + for (;;) { + try_to_freeze(); + set_current_state(TASK_INTERRUPTIBLE); + if (signal_pending(current)) { + rc = -EINTR; + break; + } + if (fsg->thread_wakeup_needed) + break; + schedule(); + } + __set_current_state(TASK_RUNNING); + fsg->thread_wakeup_needed = 0; + return rc; +} + + +/*-------------------------------------------------------------------------*/ + +static int do_read(struct fsg_dev *fsg) +{ + struct fsg_lun *curlun = fsg->curlun; + u32 lba; + struct fsg_buffhd *bh; + int rc; + u32 amount_left; + loff_t file_offset, file_offset_tmp; + unsigned int amount; + ssize_t nread; + + /* Get the starting Logical Block Address and check that it's + * not too big */ + if (fsg->cmnd[0] == READ_6) + lba = get_unaligned_be24(&fsg->cmnd[1]); + else { + lba = get_unaligned_be32(&fsg->cmnd[2]); + + /* We allow DPO (Disable Page Out = don't save data in the + * cache) and FUA (Force Unit Access = don't read from the + * cache), but we don't implement them. */ + if ((fsg->cmnd[1] & ~0x18) != 0) { + curlun->sense_data = SS_INVALID_FIELD_IN_CDB; + return -EINVAL; + } + } + if (lba >= curlun->num_sectors) { + curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE; + return -EINVAL; + } + file_offset = ((loff_t) lba) << curlun->blkbits; + + /* Carry out the file reads */ + amount_left = fsg->data_size_from_cmnd; + if (unlikely(amount_left == 0)) + return -EIO; // No default reply + + for (;;) { + + /* Figure out how much we need to read: + * Try to read the remaining amount. + * But don't read more than the buffer size. + * And don't try to read past the end of the file. + */ + amount = min((unsigned int) amount_left, mod_data.buflen); + amount = min((loff_t) amount, + curlun->file_length - file_offset); + + /* Wait for the next buffer to become available */ + bh = fsg->next_buffhd_to_fill; + while (bh->state != BUF_STATE_EMPTY) { + rc = sleep_thread(fsg); + if (rc) + return rc; + } + + /* If we were asked to read past the end of file, + * end with an empty buffer. */ + if (amount == 0) { + curlun->sense_data = + SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE; + curlun->sense_data_info = file_offset >> curlun->blkbits; + curlun->info_valid = 1; + bh->inreq->length = 0; + bh->state = BUF_STATE_FULL; + break; + } + + /* Perform the read */ + file_offset_tmp = file_offset; + nread = vfs_read(curlun->filp, + (char __user *) bh->buf, + amount, &file_offset_tmp); + VLDBG(curlun, "file read %u @ %llu -> %d\n", amount, + (unsigned long long) file_offset, + (int) nread); + if (signal_pending(current)) + return -EINTR; + + if (nread < 0) { + LDBG(curlun, "error in file read: %d\n", + (int) nread); + nread = 0; + } else if (nread < amount) { + LDBG(curlun, "partial file read: %d/%u\n", + (int) nread, amount); + nread = round_down(nread, curlun->blksize); + } + file_offset += nread; + amount_left -= nread; + fsg->residue -= nread; + + /* Except at the end of the transfer, nread will be + * equal to the buffer size, which is divisible by the + * bulk-in maxpacket size. + */ + bh->inreq->length = nread; + bh->state = BUF_STATE_FULL; + + /* If an error occurred, report it and its position */ + if (nread < amount) { + curlun->sense_data = SS_UNRECOVERED_READ_ERROR; + curlun->sense_data_info = file_offset >> curlun->blkbits; + curlun->info_valid = 1; + break; + } + + if (amount_left == 0) + break; // No more left to read + + /* Send this buffer and go read some more */ + bh->inreq->zero = 0; + start_transfer(fsg, fsg->bulk_in, bh->inreq, + &bh->inreq_busy, &bh->state); + fsg->next_buffhd_to_fill = bh->next; + } + + return -EIO; // No default reply +} + + +/*-------------------------------------------------------------------------*/ + +static int do_write(struct fsg_dev *fsg) +{ + struct fsg_lun *curlun = fsg->curlun; + u32 lba; + struct fsg_buffhd *bh; + int get_some_more; + u32 amount_left_to_req, amount_left_to_write; + loff_t usb_offset, file_offset, file_offset_tmp; + unsigned int amount; + ssize_t nwritten; + int rc; + + if (curlun->ro) { + curlun->sense_data = SS_WRITE_PROTECTED; + return -EINVAL; + } + spin_lock(&curlun->filp->f_lock); + curlun->filp->f_flags &= ~O_SYNC; // Default is not to wait + spin_unlock(&curlun->filp->f_lock); + + /* Get the starting Logical Block Address and check that it's + * not too big */ + if (fsg->cmnd[0] == WRITE_6) + lba = get_unaligned_be24(&fsg->cmnd[1]); + else { + lba = get_unaligned_be32(&fsg->cmnd[2]); + + /* We allow DPO (Disable Page Out = don't save data in the + * cache) and FUA (Force Unit Access = write directly to the + * medium). We don't implement DPO; we implement FUA by + * performing synchronous output. */ + if ((fsg->cmnd[1] & ~0x18) != 0) { + curlun->sense_data = SS_INVALID_FIELD_IN_CDB; + return -EINVAL; + } + /* FUA */ + if (!curlun->nofua && (fsg->cmnd[1] & 0x08)) { + spin_lock(&curlun->filp->f_lock); + curlun->filp->f_flags |= O_DSYNC; + spin_unlock(&curlun->filp->f_lock); + } + } + if (lba >= curlun->num_sectors) { + curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE; + return -EINVAL; + } + + /* Carry out the file writes */ + get_some_more = 1; + file_offset = usb_offset = ((loff_t) lba) << curlun->blkbits; + amount_left_to_req = amount_left_to_write = fsg->data_size_from_cmnd; + + while (amount_left_to_write > 0) { + + /* Queue a request for more data from the host */ + bh = fsg->next_buffhd_to_fill; + if (bh->state == BUF_STATE_EMPTY && get_some_more) { + + /* Figure out how much we want to get: + * Try to get the remaining amount, + * but not more than the buffer size. + */ + amount = min(amount_left_to_req, mod_data.buflen); + + /* Beyond the end of the backing file? */ + if (usb_offset >= curlun->file_length) { + get_some_more = 0; + curlun->sense_data = + SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE; + curlun->sense_data_info = usb_offset >> curlun->blkbits; + curlun->info_valid = 1; + continue; + } + + /* Get the next buffer */ + usb_offset += amount; + fsg->usb_amount_left -= amount; + amount_left_to_req -= amount; + if (amount_left_to_req == 0) + get_some_more = 0; + + /* Except at the end of the transfer, amount will be + * equal to the buffer size, which is divisible by + * the bulk-out maxpacket size. + */ + set_bulk_out_req_length(fsg, bh, amount); + start_transfer(fsg, fsg->bulk_out, bh->outreq, + &bh->outreq_busy, &bh->state); + fsg->next_buffhd_to_fill = bh->next; + continue; + } + + /* Write the received data to the backing file */ + bh = fsg->next_buffhd_to_drain; + if (bh->state == BUF_STATE_EMPTY && !get_some_more) + break; // We stopped early + if (bh->state == BUF_STATE_FULL) { + smp_rmb(); + fsg->next_buffhd_to_drain = bh->next; + bh->state = BUF_STATE_EMPTY; + + /* Did something go wrong with the transfer? */ + if (bh->outreq->status != 0) { + curlun->sense_data = SS_COMMUNICATION_FAILURE; + curlun->sense_data_info = file_offset >> curlun->blkbits; + curlun->info_valid = 1; + break; + } + + amount = bh->outreq->actual; + if (curlun->file_length - file_offset < amount) { + LERROR(curlun, + "write %u @ %llu beyond end %llu\n", + amount, (unsigned long long) file_offset, + (unsigned long long) curlun->file_length); + amount = curlun->file_length - file_offset; + } + + /* Don't accept excess data. The spec doesn't say + * what to do in this case. We'll ignore the error. + */ + amount = min(amount, bh->bulk_out_intended_length); + + /* Don't write a partial block */ + amount = round_down(amount, curlun->blksize); + if (amount == 0) + goto empty_write; + + /* Perform the write */ + file_offset_tmp = file_offset; + nwritten = vfs_write(curlun->filp, + (char __user *) bh->buf, + amount, &file_offset_tmp); + VLDBG(curlun, "file write %u @ %llu -> %d\n", amount, + (unsigned long long) file_offset, + (int) nwritten); + if (signal_pending(current)) + return -EINTR; // Interrupted! + + if (nwritten < 0) { + LDBG(curlun, "error in file write: %d\n", + (int) nwritten); + nwritten = 0; + } else if (nwritten < amount) { + LDBG(curlun, "partial file write: %d/%u\n", + (int) nwritten, amount); + nwritten = round_down(nwritten, curlun->blksize); + } + file_offset += nwritten; + amount_left_to_write -= nwritten; + fsg->residue -= nwritten; + + /* If an error occurred, report it and its position */ + if (nwritten < amount) { + curlun->sense_data = SS_WRITE_ERROR; + curlun->sense_data_info = file_offset >> curlun->blkbits; + curlun->info_valid = 1; + break; + } + + empty_write: + /* Did the host decide to stop early? */ + if (bh->outreq->actual < bh->bulk_out_intended_length) { + fsg->short_packet_received = 1; + break; + } + continue; + } + + /* Wait for something to happen */ + rc = sleep_thread(fsg); + if (rc) + return rc; + } + + return -EIO; // No default reply +} + + +/*-------------------------------------------------------------------------*/ + +static int do_synchronize_cache(struct fsg_dev *fsg) +{ + struct fsg_lun *curlun = fsg->curlun; + int rc; + + /* We ignore the requested LBA and write out all file's + * dirty data buffers. */ + rc = fsg_lun_fsync_sub(curlun); + if (rc) + curlun->sense_data = SS_WRITE_ERROR; + return 0; +} + + +/*-------------------------------------------------------------------------*/ + +static void invalidate_sub(struct fsg_lun *curlun) +{ + struct file *filp = curlun->filp; + struct inode *inode = filp->f_path.dentry->d_inode; + unsigned long rc; + + rc = invalidate_mapping_pages(inode->i_mapping, 0, -1); + VLDBG(curlun, "invalidate_mapping_pages -> %ld\n", rc); +} + +static int do_verify(struct fsg_dev *fsg) +{ + struct fsg_lun *curlun = fsg->curlun; + u32 lba; + u32 verification_length; + struct fsg_buffhd *bh = fsg->next_buffhd_to_fill; + loff_t file_offset, file_offset_tmp; + u32 amount_left; + unsigned int amount; + ssize_t nread; + + /* Get the starting Logical Block Address and check that it's + * not too big */ + lba = get_unaligned_be32(&fsg->cmnd[2]); + if (lba >= curlun->num_sectors) { + curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE; + return -EINVAL; + } + + /* We allow DPO (Disable Page Out = don't save data in the + * cache) but we don't implement it. */ + if ((fsg->cmnd[1] & ~0x10) != 0) { + curlun->sense_data = SS_INVALID_FIELD_IN_CDB; + return -EINVAL; + } + + verification_length = get_unaligned_be16(&fsg->cmnd[7]); + if (unlikely(verification_length == 0)) + return -EIO; // No default reply + + /* Prepare to carry out the file verify */ + amount_left = verification_length << curlun->blkbits; + file_offset = ((loff_t) lba) << curlun->blkbits; + + /* Write out all the dirty buffers before invalidating them */ + fsg_lun_fsync_sub(curlun); + if (signal_pending(current)) + return -EINTR; + + invalidate_sub(curlun); + if (signal_pending(current)) + return -EINTR; + + /* Just try to read the requested blocks */ + while (amount_left > 0) { + + /* Figure out how much we need to read: + * Try to read the remaining amount, but not more than + * the buffer size. + * And don't try to read past the end of the file. + */ + amount = min((unsigned int) amount_left, mod_data.buflen); + amount = min((loff_t) amount, + curlun->file_length - file_offset); + if (amount == 0) { + curlun->sense_data = + SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE; + curlun->sense_data_info = file_offset >> curlun->blkbits; + curlun->info_valid = 1; + break; + } + + /* Perform the read */ + file_offset_tmp = file_offset; + nread = vfs_read(curlun->filp, + (char __user *) bh->buf, + amount, &file_offset_tmp); + VLDBG(curlun, "file read %u @ %llu -> %d\n", amount, + (unsigned long long) file_offset, + (int) nread); + if (signal_pending(current)) + return -EINTR; + + if (nread < 0) { + LDBG(curlun, "error in file verify: %d\n", + (int) nread); + nread = 0; + } else if (nread < amount) { + LDBG(curlun, "partial file verify: %d/%u\n", + (int) nread, amount); + nread = round_down(nread, curlun->blksize); + } + if (nread == 0) { + curlun->sense_data = SS_UNRECOVERED_READ_ERROR; + curlun->sense_data_info = file_offset >> curlun->blkbits; + curlun->info_valid = 1; + break; + } + file_offset += nread; + amount_left -= nread; + } + return 0; +} + + +/*-------------------------------------------------------------------------*/ + +static int do_inquiry(struct fsg_dev *fsg, struct fsg_buffhd *bh) +{ + u8 *buf = (u8 *) bh->buf; + + static char vendor_id[] = "Linux "; + static char product_disk_id[] = "File-Stor Gadget"; + static char product_cdrom_id[] = "File-CD Gadget "; + + if (!fsg->curlun) { // Unsupported LUNs are okay + fsg->bad_lun_okay = 1; + memset(buf, 0, 36); + buf[0] = 0x7f; // Unsupported, no device-type + buf[4] = 31; // Additional length + return 36; + } + + memset(buf, 0, 8); + buf[0] = (mod_data.cdrom ? TYPE_ROM : TYPE_DISK); + if (mod_data.removable) + buf[1] = 0x80; + buf[2] = 2; // ANSI SCSI level 2 + buf[3] = 2; // SCSI-2 INQUIRY data format + buf[4] = 31; // Additional length + // No special options + sprintf(buf + 8, "%-8s%-16s%04x", vendor_id, + (mod_data.cdrom ? product_cdrom_id : + product_disk_id), + mod_data.release); + return 36; +} + + +static int do_request_sense(struct fsg_dev *fsg, struct fsg_buffhd *bh) +{ + struct fsg_lun *curlun = fsg->curlun; + u8 *buf = (u8 *) bh->buf; + u32 sd, sdinfo; + int valid; + + /* + * From the SCSI-2 spec., section 7.9 (Unit attention condition): + * + * If a REQUEST SENSE command is received from an initiator + * with a pending unit attention condition (before the target + * generates the contingent allegiance condition), then the + * target shall either: + * a) report any pending sense data and preserve the unit + * attention condition on the logical unit, or, + * b) report the unit attention condition, may discard any + * pending sense data, and clear the unit attention + * condition on the logical unit for that initiator. + * + * FSG normally uses option a); enable this code to use option b). + */ +#if 0 + if (curlun && curlun->unit_attention_data != SS_NO_SENSE) { + curlun->sense_data = curlun->unit_attention_data; + curlun->unit_attention_data = SS_NO_SENSE; + } +#endif + + if (!curlun) { // Unsupported LUNs are okay + fsg->bad_lun_okay = 1; + sd = SS_LOGICAL_UNIT_NOT_SUPPORTED; + sdinfo = 0; + valid = 0; + } else { + sd = curlun->sense_data; + sdinfo = curlun->sense_data_info; + valid = curlun->info_valid << 7; + curlun->sense_data = SS_NO_SENSE; + curlun->sense_data_info = 0; + curlun->info_valid = 0; + } + + memset(buf, 0, 18); + buf[0] = valid | 0x70; // Valid, current error + buf[2] = SK(sd); + put_unaligned_be32(sdinfo, &buf[3]); /* Sense information */ + buf[7] = 18 - 8; // Additional sense length + buf[12] = ASC(sd); + buf[13] = ASCQ(sd); + return 18; +} + + +static int do_read_capacity(struct fsg_dev *fsg, struct fsg_buffhd *bh) +{ + struct fsg_lun *curlun = fsg->curlun; + u32 lba = get_unaligned_be32(&fsg->cmnd[2]); + int pmi = fsg->cmnd[8]; + u8 *buf = (u8 *) bh->buf; + + /* Check the PMI and LBA fields */ + if (pmi > 1 || (pmi == 0 && lba != 0)) { + curlun->sense_data = SS_INVALID_FIELD_IN_CDB; + return -EINVAL; + } + + put_unaligned_be32(curlun->num_sectors - 1, &buf[0]); + /* Max logical block */ + put_unaligned_be32(curlun->blksize, &buf[4]); /* Block length */ + return 8; +} + + +static int do_read_header(struct fsg_dev *fsg, struct fsg_buffhd *bh) +{ + struct fsg_lun *curlun = fsg->curlun; + int msf = fsg->cmnd[1] & 0x02; + u32 lba = get_unaligned_be32(&fsg->cmnd[2]); + u8 *buf = (u8 *) bh->buf; + + if ((fsg->cmnd[1] & ~0x02) != 0) { /* Mask away MSF */ + curlun->sense_data = SS_INVALID_FIELD_IN_CDB; + return -EINVAL; + } + if (lba >= curlun->num_sectors) { + curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE; + return -EINVAL; + } + + memset(buf, 0, 8); + buf[0] = 0x01; /* 2048 bytes of user data, rest is EC */ + store_cdrom_address(&buf[4], msf, lba); + return 8; +} + + +static int do_read_toc(struct fsg_dev *fsg, struct fsg_buffhd *bh) +{ + struct fsg_lun *curlun = fsg->curlun; + int msf = fsg->cmnd[1] & 0x02; + int start_track = fsg->cmnd[6]; + u8 *buf = (u8 *) bh->buf; + + if ((fsg->cmnd[1] & ~0x02) != 0 || /* Mask away MSF */ + start_track > 1) { + curlun->sense_data = SS_INVALID_FIELD_IN_CDB; + return -EINVAL; + } + + memset(buf, 0, 20); + buf[1] = (20-2); /* TOC data length */ + buf[2] = 1; /* First track number */ + buf[3] = 1; /* Last track number */ + buf[5] = 0x16; /* Data track, copying allowed */ + buf[6] = 0x01; /* Only track is number 1 */ + store_cdrom_address(&buf[8], msf, 0); + + buf[13] = 0x16; /* Lead-out track is data */ + buf[14] = 0xAA; /* Lead-out track number */ + store_cdrom_address(&buf[16], msf, curlun->num_sectors); + return 20; +} + + +static int do_mode_sense(struct fsg_dev *fsg, struct fsg_buffhd *bh) +{ + struct fsg_lun *curlun = fsg->curlun; + int mscmnd = fsg->cmnd[0]; + u8 *buf = (u8 *) bh->buf; + u8 *buf0 = buf; + int pc, page_code; + int changeable_values, all_pages; + int valid_page = 0; + int len, limit; + + if ((fsg->cmnd[1] & ~0x08) != 0) { // Mask away DBD + curlun->sense_data = SS_INVALID_FIELD_IN_CDB; + return -EINVAL; + } + pc = fsg->cmnd[2] >> 6; + page_code = fsg->cmnd[2] & 0x3f; + if (pc == 3) { + curlun->sense_data = SS_SAVING_PARAMETERS_NOT_SUPPORTED; + return -EINVAL; + } + changeable_values = (pc == 1); + all_pages = (page_code == 0x3f); + + /* Write the mode parameter header. Fixed values are: default + * medium type, no cache control (DPOFUA), and no block descriptors. + * The only variable value is the WriteProtect bit. We will fill in + * the mode data length later. */ + memset(buf, 0, 8); + if (mscmnd == MODE_SENSE) { + buf[2] = (curlun->ro ? 0x80 : 0x00); // WP, DPOFUA + buf += 4; + limit = 255; + } else { // MODE_SENSE_10 + buf[3] = (curlun->ro ? 0x80 : 0x00); // WP, DPOFUA + buf += 8; + limit = 65535; // Should really be mod_data.buflen + } + + /* No block descriptors */ + + /* The mode pages, in numerical order. The only page we support + * is the Caching page. */ + if (page_code == 0x08 || all_pages) { + valid_page = 1; + buf[0] = 0x08; // Page code + buf[1] = 10; // Page length + memset(buf+2, 0, 10); // None of the fields are changeable + + if (!changeable_values) { + buf[2] = 0x04; // Write cache enable, + // Read cache not disabled + // No cache retention priorities + put_unaligned_be16(0xffff, &buf[4]); + /* Don't disable prefetch */ + /* Minimum prefetch = 0 */ + put_unaligned_be16(0xffff, &buf[8]); + /* Maximum prefetch */ + put_unaligned_be16(0xffff, &buf[10]); + /* Maximum prefetch ceiling */ + } + buf += 12; + } + + /* Check that a valid page was requested and the mode data length + * isn't too long. */ + len = buf - buf0; + if (!valid_page || len > limit) { + curlun->sense_data = SS_INVALID_FIELD_IN_CDB; + return -EINVAL; + } + + /* Store the mode data length */ + if (mscmnd == MODE_SENSE) + buf0[0] = len - 1; + else + put_unaligned_be16(len - 2, buf0); + return len; +} + + +static int do_start_stop(struct fsg_dev *fsg) +{ + struct fsg_lun *curlun = fsg->curlun; + int loej, start; + + if (!mod_data.removable) { + curlun->sense_data = SS_INVALID_COMMAND; + return -EINVAL; + } + + // int immed = fsg->cmnd[1] & 0x01; + loej = fsg->cmnd[4] & 0x02; + start = fsg->cmnd[4] & 0x01; + +#ifdef CONFIG_USB_FILE_STORAGE_TEST + if ((fsg->cmnd[1] & ~0x01) != 0 || // Mask away Immed + (fsg->cmnd[4] & ~0x03) != 0) { // Mask LoEj, Start + curlun->sense_data = SS_INVALID_FIELD_IN_CDB; + return -EINVAL; + } + + if (!start) { + + /* Are we allowed to unload the media? */ + if (curlun->prevent_medium_removal) { + LDBG(curlun, "unload attempt prevented\n"); + curlun->sense_data = SS_MEDIUM_REMOVAL_PREVENTED; + return -EINVAL; + } + if (loej) { // Simulate an unload/eject + up_read(&fsg->filesem); + down_write(&fsg->filesem); + fsg_lun_close(curlun); + up_write(&fsg->filesem); + down_read(&fsg->filesem); + } + } else { + + /* Our emulation doesn't support mounting; the medium is + * available for use as soon as it is loaded. */ + if (!fsg_lun_is_open(curlun)) { + curlun->sense_data = SS_MEDIUM_NOT_PRESENT; + return -EINVAL; + } + } +#endif + return 0; +} + + +static int do_prevent_allow(struct fsg_dev *fsg) +{ + struct fsg_lun *curlun = fsg->curlun; + int prevent; + + if (!mod_data.removable) { + curlun->sense_data = SS_INVALID_COMMAND; + return -EINVAL; + } + + prevent = fsg->cmnd[4] & 0x01; + if ((fsg->cmnd[4] & ~0x01) != 0) { // Mask away Prevent + curlun->sense_data = SS_INVALID_FIELD_IN_CDB; + return -EINVAL; + } + + if (curlun->prevent_medium_removal && !prevent) + fsg_lun_fsync_sub(curlun); + curlun->prevent_medium_removal = prevent; + return 0; +} + + +static int do_read_format_capacities(struct fsg_dev *fsg, + struct fsg_buffhd *bh) +{ + struct fsg_lun *curlun = fsg->curlun; + u8 *buf = (u8 *) bh->buf; + + buf[0] = buf[1] = buf[2] = 0; + buf[3] = 8; // Only the Current/Maximum Capacity Descriptor + buf += 4; + + put_unaligned_be32(curlun->num_sectors, &buf[0]); + /* Number of blocks */ + put_unaligned_be32(curlun->blksize, &buf[4]); /* Block length */ + buf[4] = 0x02; /* Current capacity */ + return 12; +} + + +static int do_mode_select(struct fsg_dev *fsg, struct fsg_buffhd *bh) +{ + struct fsg_lun *curlun = fsg->curlun; + + /* We don't support MODE SELECT */ + curlun->sense_data = SS_INVALID_COMMAND; + return -EINVAL; +} + + +/*-------------------------------------------------------------------------*/ + +static int halt_bulk_in_endpoint(struct fsg_dev *fsg) +{ + int rc; + + rc = fsg_set_halt(fsg, fsg->bulk_in); + if (rc == -EAGAIN) + VDBG(fsg, "delayed bulk-in endpoint halt\n"); + while (rc != 0) { + if (rc != -EAGAIN) { + WARNING(fsg, "usb_ep_set_halt -> %d\n", rc); + rc = 0; + break; + } + + /* Wait for a short time and then try again */ + if (msleep_interruptible(100) != 0) + return -EINTR; + rc = usb_ep_set_halt(fsg->bulk_in); + } + return rc; +} + +static int wedge_bulk_in_endpoint(struct fsg_dev *fsg) +{ + int rc; + + DBG(fsg, "bulk-in set wedge\n"); + rc = usb_ep_set_wedge(fsg->bulk_in); + if (rc == -EAGAIN) + VDBG(fsg, "delayed bulk-in endpoint wedge\n"); + while (rc != 0) { + if (rc != -EAGAIN) { + WARNING(fsg, "usb_ep_set_wedge -> %d\n", rc); + rc = 0; + break; + } + + /* Wait for a short time and then try again */ + if (msleep_interruptible(100) != 0) + return -EINTR; + rc = usb_ep_set_wedge(fsg->bulk_in); + } + return rc; +} + +static int throw_away_data(struct fsg_dev *fsg) +{ + struct fsg_buffhd *bh; + u32 amount; + int rc; + + while ((bh = fsg->next_buffhd_to_drain)->state != BUF_STATE_EMPTY || + fsg->usb_amount_left > 0) { + + /* Throw away the data in a filled buffer */ + if (bh->state == BUF_STATE_FULL) { + smp_rmb(); + bh->state = BUF_STATE_EMPTY; + fsg->next_buffhd_to_drain = bh->next; + + /* A short packet or an error ends everything */ + if (bh->outreq->actual < bh->bulk_out_intended_length || + bh->outreq->status != 0) { + raise_exception(fsg, FSG_STATE_ABORT_BULK_OUT); + return -EINTR; + } + continue; + } + + /* Try to submit another request if we need one */ + bh = fsg->next_buffhd_to_fill; + if (bh->state == BUF_STATE_EMPTY && fsg->usb_amount_left > 0) { + amount = min(fsg->usb_amount_left, + (u32) mod_data.buflen); + + /* Except at the end of the transfer, amount will be + * equal to the buffer size, which is divisible by + * the bulk-out maxpacket size. + */ + set_bulk_out_req_length(fsg, bh, amount); + start_transfer(fsg, fsg->bulk_out, bh->outreq, + &bh->outreq_busy, &bh->state); + fsg->next_buffhd_to_fill = bh->next; + fsg->usb_amount_left -= amount; + continue; + } + + /* Otherwise wait for something to happen */ + rc = sleep_thread(fsg); + if (rc) + return rc; + } + return 0; +} + + +static int finish_reply(struct fsg_dev *fsg) +{ + struct fsg_buffhd *bh = fsg->next_buffhd_to_fill; + int rc = 0; + + switch (fsg->data_dir) { + case DATA_DIR_NONE: + break; // Nothing to send + + /* If we don't know whether the host wants to read or write, + * this must be CB or CBI with an unknown command. We mustn't + * try to send or receive any data. So stall both bulk pipes + * if we can and wait for a reset. */ + case DATA_DIR_UNKNOWN: + if (mod_data.can_stall) { + fsg_set_halt(fsg, fsg->bulk_out); + rc = halt_bulk_in_endpoint(fsg); + } + break; + + /* All but the last buffer of data must have already been sent */ + case DATA_DIR_TO_HOST: + if (fsg->data_size == 0) + ; // Nothing to send + + /* If there's no residue, simply send the last buffer */ + else if (fsg->residue == 0) { + bh->inreq->zero = 0; + start_transfer(fsg, fsg->bulk_in, bh->inreq, + &bh->inreq_busy, &bh->state); + fsg->next_buffhd_to_fill = bh->next; + } + + /* There is a residue. For CB and CBI, simply mark the end + * of the data with a short packet. However, if we are + * allowed to stall, there was no data at all (residue == + * data_size), and the command failed (invalid LUN or + * sense data is set), then halt the bulk-in endpoint + * instead. */ + else if (!transport_is_bbb()) { + if (mod_data.can_stall && + fsg->residue == fsg->data_size && + (!fsg->curlun || fsg->curlun->sense_data != SS_NO_SENSE)) { + bh->state = BUF_STATE_EMPTY; + rc = halt_bulk_in_endpoint(fsg); + } else { + bh->inreq->zero = 1; + start_transfer(fsg, fsg->bulk_in, bh->inreq, + &bh->inreq_busy, &bh->state); + fsg->next_buffhd_to_fill = bh->next; + } + } + + /* + * For Bulk-only, mark the end of the data with a short + * packet. If we are allowed to stall, halt the bulk-in + * endpoint. (Note: This violates the Bulk-Only Transport + * specification, which requires us to pad the data if we + * don't halt the endpoint. Presumably nobody will mind.) + */ + else { + bh->inreq->zero = 1; + start_transfer(fsg, fsg->bulk_in, bh->inreq, + &bh->inreq_busy, &bh->state); + fsg->next_buffhd_to_fill = bh->next; + if (mod_data.can_stall) + rc = halt_bulk_in_endpoint(fsg); + } + break; + + /* We have processed all we want from the data the host has sent. + * There may still be outstanding bulk-out requests. */ + case DATA_DIR_FROM_HOST: + if (fsg->residue == 0) + ; // Nothing to receive + + /* Did the host stop sending unexpectedly early? */ + else if (fsg->short_packet_received) { + raise_exception(fsg, FSG_STATE_ABORT_BULK_OUT); + rc = -EINTR; + } + + /* We haven't processed all the incoming data. Even though + * we may be allowed to stall, doing so would cause a race. + * The controller may already have ACK'ed all the remaining + * bulk-out packets, in which case the host wouldn't see a + * STALL. Not realizing the endpoint was halted, it wouldn't + * clear the halt -- leading to problems later on. */ +#if 0 + else if (mod_data.can_stall) { + fsg_set_halt(fsg, fsg->bulk_out); + raise_exception(fsg, FSG_STATE_ABORT_BULK_OUT); + rc = -EINTR; + } +#endif + + /* We can't stall. Read in the excess data and throw it + * all away. */ + else + rc = throw_away_data(fsg); + break; + } + return rc; +} + + +static int send_status(struct fsg_dev *fsg) +{ + struct fsg_lun *curlun = fsg->curlun; + struct fsg_buffhd *bh; + int rc; + u8 status = US_BULK_STAT_OK; + u32 sd, sdinfo = 0; + + /* Wait for the next buffer to become available */ + bh = fsg->next_buffhd_to_fill; + while (bh->state != BUF_STATE_EMPTY) { + rc = sleep_thread(fsg); + if (rc) + return rc; + } + + if (curlun) { + sd = curlun->sense_data; + sdinfo = curlun->sense_data_info; + } else if (fsg->bad_lun_okay) + sd = SS_NO_SENSE; + else + sd = SS_LOGICAL_UNIT_NOT_SUPPORTED; + + if (fsg->phase_error) { + DBG(fsg, "sending phase-error status\n"); + status = US_BULK_STAT_PHASE; + sd = SS_INVALID_COMMAND; + } else if (sd != SS_NO_SENSE) { + DBG(fsg, "sending command-failure status\n"); + status = US_BULK_STAT_FAIL; + VDBG(fsg, " sense data: SK x%02x, ASC x%02x, ASCQ x%02x;" + " info x%x\n", + SK(sd), ASC(sd), ASCQ(sd), sdinfo); + } + + if (transport_is_bbb()) { + struct bulk_cs_wrap *csw = bh->buf; + + /* Store and send the Bulk-only CSW */ + csw->Signature = cpu_to_le32(US_BULK_CS_SIGN); + csw->Tag = fsg->tag; + csw->Residue = cpu_to_le32(fsg->residue); + csw->Status = status; + + bh->inreq->length = US_BULK_CS_WRAP_LEN; + bh->inreq->zero = 0; + start_transfer(fsg, fsg->bulk_in, bh->inreq, + &bh->inreq_busy, &bh->state); + + } else if (mod_data.transport_type == USB_PR_CB) { + + /* Control-Bulk transport has no status phase! */ + return 0; + + } else { // USB_PR_CBI + struct interrupt_data *buf = bh->buf; + + /* Store and send the Interrupt data. UFI sends the ASC + * and ASCQ bytes. Everything else sends a Type (which + * is always 0) and the status Value. */ + if (mod_data.protocol_type == USB_SC_UFI) { + buf->bType = ASC(sd); + buf->bValue = ASCQ(sd); + } else { + buf->bType = 0; + buf->bValue = status; + } + fsg->intreq->length = CBI_INTERRUPT_DATA_LEN; + + fsg->intr_buffhd = bh; // Point to the right buffhd + fsg->intreq->buf = bh->inreq->buf; + fsg->intreq->context = bh; + start_transfer(fsg, fsg->intr_in, fsg->intreq, + &fsg->intreq_busy, &bh->state); + } + + fsg->next_buffhd_to_fill = bh->next; + return 0; +} + + +/*-------------------------------------------------------------------------*/ + +/* Check whether the command is properly formed and whether its data size + * and direction agree with the values we already have. */ +static int check_command(struct fsg_dev *fsg, int cmnd_size, + enum data_direction data_dir, unsigned int mask, + int needs_medium, const char *name) +{ + int i; + int lun = fsg->cmnd[1] >> 5; + static const char dirletter[4] = {'u', 'o', 'i', 'n'}; + char hdlen[20]; + struct fsg_lun *curlun; + + /* Adjust the expected cmnd_size for protocol encapsulation padding. + * Transparent SCSI doesn't pad. */ + if (protocol_is_scsi()) + ; + + /* There's some disagreement as to whether RBC pads commands or not. + * We'll play it safe and accept either form. */ + else if (mod_data.protocol_type == USB_SC_RBC) { + if (fsg->cmnd_size == 12) + cmnd_size = 12; + + /* All the other protocols pad to 12 bytes */ + } else + cmnd_size = 12; + + hdlen[0] = 0; + if (fsg->data_dir != DATA_DIR_UNKNOWN) + sprintf(hdlen, ", H%c=%u", dirletter[(int) fsg->data_dir], + fsg->data_size); + VDBG(fsg, "SCSI command: %s; Dc=%d, D%c=%u; Hc=%d%s\n", + name, cmnd_size, dirletter[(int) data_dir], + fsg->data_size_from_cmnd, fsg->cmnd_size, hdlen); + + /* We can't reply at all until we know the correct data direction + * and size. */ + if (fsg->data_size_from_cmnd == 0) + data_dir = DATA_DIR_NONE; + if (fsg->data_dir == DATA_DIR_UNKNOWN) { // CB or CBI + fsg->data_dir = data_dir; + fsg->data_size = fsg->data_size_from_cmnd; + + } else { // Bulk-only + if (fsg->data_size < fsg->data_size_from_cmnd) { + + /* Host data size < Device data size is a phase error. + * Carry out the command, but only transfer as much + * as we are allowed. */ + fsg->data_size_from_cmnd = fsg->data_size; + fsg->phase_error = 1; + } + } + fsg->residue = fsg->usb_amount_left = fsg->data_size; + + /* Conflicting data directions is a phase error */ + if (fsg->data_dir != data_dir && fsg->data_size_from_cmnd > 0) { + fsg->phase_error = 1; + return -EINVAL; + } + + /* Verify the length of the command itself */ + if (cmnd_size != fsg->cmnd_size) { + + /* Special case workaround: There are plenty of buggy SCSI + * implementations. Many have issues with cbw->Length + * field passing a wrong command size. For those cases we + * always try to work around the problem by using the length + * sent by the host side provided it is at least as large + * as the correct command length. + * Examples of such cases would be MS-Windows, which issues + * REQUEST SENSE with cbw->Length == 12 where it should + * be 6, and xbox360 issuing INQUIRY, TEST UNIT READY and + * REQUEST SENSE with cbw->Length == 10 where it should + * be 6 as well. + */ + if (cmnd_size <= fsg->cmnd_size) { + DBG(fsg, "%s is buggy! Expected length %d " + "but we got %d\n", name, + cmnd_size, fsg->cmnd_size); + cmnd_size = fsg->cmnd_size; + } else { + fsg->phase_error = 1; + return -EINVAL; + } + } + + /* Check that the LUN values are consistent */ + if (transport_is_bbb()) { + if (fsg->lun != lun) + DBG(fsg, "using LUN %d from CBW, " + "not LUN %d from CDB\n", + fsg->lun, lun); + } + + /* Check the LUN */ + curlun = fsg->curlun; + if (curlun) { + if (fsg->cmnd[0] != REQUEST_SENSE) { + curlun->sense_data = SS_NO_SENSE; + curlun->sense_data_info = 0; + curlun->info_valid = 0; + } + } else { + fsg->bad_lun_okay = 0; + + /* INQUIRY and REQUEST SENSE commands are explicitly allowed + * to use unsupported LUNs; all others may not. */ + if (fsg->cmnd[0] != INQUIRY && + fsg->cmnd[0] != REQUEST_SENSE) { + DBG(fsg, "unsupported LUN %d\n", fsg->lun); + return -EINVAL; + } + } + + /* If a unit attention condition exists, only INQUIRY and + * REQUEST SENSE commands are allowed; anything else must fail. */ + if (curlun && curlun->unit_attention_data != SS_NO_SENSE && + fsg->cmnd[0] != INQUIRY && + fsg->cmnd[0] != REQUEST_SENSE) { + curlun->sense_data = curlun->unit_attention_data; + curlun->unit_attention_data = SS_NO_SENSE; + return -EINVAL; + } + + /* Check that only command bytes listed in the mask are non-zero */ + fsg->cmnd[1] &= 0x1f; // Mask away the LUN + for (i = 1; i < cmnd_size; ++i) { + if (fsg->cmnd[i] && !(mask & (1 << i))) { + if (curlun) + curlun->sense_data = SS_INVALID_FIELD_IN_CDB; + return -EINVAL; + } + } + + /* If the medium isn't mounted and the command needs to access + * it, return an error. */ + if (curlun && !fsg_lun_is_open(curlun) && needs_medium) { + curlun->sense_data = SS_MEDIUM_NOT_PRESENT; + return -EINVAL; + } + + return 0; +} + +/* wrapper of check_command for data size in blocks handling */ +static int check_command_size_in_blocks(struct fsg_dev *fsg, int cmnd_size, + enum data_direction data_dir, unsigned int mask, + int needs_medium, const char *name) +{ + if (fsg->curlun) + fsg->data_size_from_cmnd <<= fsg->curlun->blkbits; + return check_command(fsg, cmnd_size, data_dir, + mask, needs_medium, name); +} + +static int do_scsi_command(struct fsg_dev *fsg) +{ + struct fsg_buffhd *bh; + int rc; + int reply = -EINVAL; + int i; + static char unknown[16]; + + dump_cdb(fsg); + + /* Wait for the next buffer to become available for data or status */ + bh = fsg->next_buffhd_to_drain = fsg->next_buffhd_to_fill; + while (bh->state != BUF_STATE_EMPTY) { + rc = sleep_thread(fsg); + if (rc) + return rc; + } + fsg->phase_error = 0; + fsg->short_packet_received = 0; + + down_read(&fsg->filesem); // We're using the backing file + switch (fsg->cmnd[0]) { + + case INQUIRY: + fsg->data_size_from_cmnd = fsg->cmnd[4]; + if ((reply = check_command(fsg, 6, DATA_DIR_TO_HOST, + (1<<4), 0, + "INQUIRY")) == 0) + reply = do_inquiry(fsg, bh); + break; + + case MODE_SELECT: + fsg->data_size_from_cmnd = fsg->cmnd[4]; + if ((reply = check_command(fsg, 6, DATA_DIR_FROM_HOST, + (1<<1) | (1<<4), 0, + "MODE SELECT(6)")) == 0) + reply = do_mode_select(fsg, bh); + break; + + case MODE_SELECT_10: + fsg->data_size_from_cmnd = get_unaligned_be16(&fsg->cmnd[7]); + if ((reply = check_command(fsg, 10, DATA_DIR_FROM_HOST, + (1<<1) | (3<<7), 0, + "MODE SELECT(10)")) == 0) + reply = do_mode_select(fsg, bh); + break; + + case MODE_SENSE: + fsg->data_size_from_cmnd = fsg->cmnd[4]; + if ((reply = check_command(fsg, 6, DATA_DIR_TO_HOST, + (1<<1) | (1<<2) | (1<<4), 0, + "MODE SENSE(6)")) == 0) + reply = do_mode_sense(fsg, bh); + break; + + case MODE_SENSE_10: + fsg->data_size_from_cmnd = get_unaligned_be16(&fsg->cmnd[7]); + if ((reply = check_command(fsg, 10, DATA_DIR_TO_HOST, + (1<<1) | (1<<2) | (3<<7), 0, + "MODE SENSE(10)")) == 0) + reply = do_mode_sense(fsg, bh); + break; + + case ALLOW_MEDIUM_REMOVAL: + fsg->data_size_from_cmnd = 0; + if ((reply = check_command(fsg, 6, DATA_DIR_NONE, + (1<<4), 0, + "PREVENT-ALLOW MEDIUM REMOVAL")) == 0) + reply = do_prevent_allow(fsg); + break; + + case READ_6: + i = fsg->cmnd[4]; + fsg->data_size_from_cmnd = (i == 0) ? 256 : i; + if ((reply = check_command_size_in_blocks(fsg, 6, + DATA_DIR_TO_HOST, + (7<<1) | (1<<4), 1, + "READ(6)")) == 0) + reply = do_read(fsg); + break; + + case READ_10: + fsg->data_size_from_cmnd = get_unaligned_be16(&fsg->cmnd[7]); + if ((reply = check_command_size_in_blocks(fsg, 10, + DATA_DIR_TO_HOST, + (1<<1) | (0xf<<2) | (3<<7), 1, + "READ(10)")) == 0) + reply = do_read(fsg); + break; + + case READ_12: + fsg->data_size_from_cmnd = get_unaligned_be32(&fsg->cmnd[6]); + if ((reply = check_command_size_in_blocks(fsg, 12, + DATA_DIR_TO_HOST, + (1<<1) | (0xf<<2) | (0xf<<6), 1, + "READ(12)")) == 0) + reply = do_read(fsg); + break; + + case READ_CAPACITY: + fsg->data_size_from_cmnd = 8; + if ((reply = check_command(fsg, 10, DATA_DIR_TO_HOST, + (0xf<<2) | (1<<8), 1, + "READ CAPACITY")) == 0) + reply = do_read_capacity(fsg, bh); + break; + + case READ_HEADER: + if (!mod_data.cdrom) + goto unknown_cmnd; + fsg->data_size_from_cmnd = get_unaligned_be16(&fsg->cmnd[7]); + if ((reply = check_command(fsg, 10, DATA_DIR_TO_HOST, + (3<<7) | (0x1f<<1), 1, + "READ HEADER")) == 0) + reply = do_read_header(fsg, bh); + break; + + case READ_TOC: + if (!mod_data.cdrom) + goto unknown_cmnd; + fsg->data_size_from_cmnd = get_unaligned_be16(&fsg->cmnd[7]); + if ((reply = check_command(fsg, 10, DATA_DIR_TO_HOST, + (7<<6) | (1<<1), 1, + "READ TOC")) == 0) + reply = do_read_toc(fsg, bh); + break; + + case READ_FORMAT_CAPACITIES: + fsg->data_size_from_cmnd = get_unaligned_be16(&fsg->cmnd[7]); + if ((reply = check_command(fsg, 10, DATA_DIR_TO_HOST, + (3<<7), 1, + "READ FORMAT CAPACITIES")) == 0) + reply = do_read_format_capacities(fsg, bh); + break; + + case REQUEST_SENSE: + fsg->data_size_from_cmnd = fsg->cmnd[4]; + if ((reply = check_command(fsg, 6, DATA_DIR_TO_HOST, + (1<<4), 0, + "REQUEST SENSE")) == 0) + reply = do_request_sense(fsg, bh); + break; + + case START_STOP: + fsg->data_size_from_cmnd = 0; + if ((reply = check_command(fsg, 6, DATA_DIR_NONE, + (1<<1) | (1<<4), 0, + "START-STOP UNIT")) == 0) + reply = do_start_stop(fsg); + break; + + case SYNCHRONIZE_CACHE: + fsg->data_size_from_cmnd = 0; + if ((reply = check_command(fsg, 10, DATA_DIR_NONE, + (0xf<<2) | (3<<7), 1, + "SYNCHRONIZE CACHE")) == 0) + reply = do_synchronize_cache(fsg); + break; + + case TEST_UNIT_READY: + fsg->data_size_from_cmnd = 0; + reply = check_command(fsg, 6, DATA_DIR_NONE, + 0, 1, + "TEST UNIT READY"); + break; + + /* Although optional, this command is used by MS-Windows. We + * support a minimal version: BytChk must be 0. */ + case VERIFY: + fsg->data_size_from_cmnd = 0; + if ((reply = check_command(fsg, 10, DATA_DIR_NONE, + (1<<1) | (0xf<<2) | (3<<7), 1, + "VERIFY")) == 0) + reply = do_verify(fsg); + break; + + case WRITE_6: + i = fsg->cmnd[4]; + fsg->data_size_from_cmnd = (i == 0) ? 256 : i; + if ((reply = check_command_size_in_blocks(fsg, 6, + DATA_DIR_FROM_HOST, + (7<<1) | (1<<4), 1, + "WRITE(6)")) == 0) + reply = do_write(fsg); + break; + + case WRITE_10: + fsg->data_size_from_cmnd = get_unaligned_be16(&fsg->cmnd[7]); + if ((reply = check_command_size_in_blocks(fsg, 10, + DATA_DIR_FROM_HOST, + (1<<1) | (0xf<<2) | (3<<7), 1, + "WRITE(10)")) == 0) + reply = do_write(fsg); + break; + + case WRITE_12: + fsg->data_size_from_cmnd = get_unaligned_be32(&fsg->cmnd[6]); + if ((reply = check_command_size_in_blocks(fsg, 12, + DATA_DIR_FROM_HOST, + (1<<1) | (0xf<<2) | (0xf<<6), 1, + "WRITE(12)")) == 0) + reply = do_write(fsg); + break; + + /* Some mandatory commands that we recognize but don't implement. + * They don't mean much in this setting. It's left as an exercise + * for anyone interested to implement RESERVE and RELEASE in terms + * of Posix locks. */ + case FORMAT_UNIT: + case RELEASE: + case RESERVE: + case SEND_DIAGNOSTIC: + // Fall through + + default: + unknown_cmnd: + fsg->data_size_from_cmnd = 0; + sprintf(unknown, "Unknown x%02x", fsg->cmnd[0]); + if ((reply = check_command(fsg, fsg->cmnd_size, + DATA_DIR_UNKNOWN, ~0, 0, unknown)) == 0) { + fsg->curlun->sense_data = SS_INVALID_COMMAND; + reply = -EINVAL; + } + break; + } + up_read(&fsg->filesem); + + if (reply == -EINTR || signal_pending(current)) + return -EINTR; + + /* Set up the single reply buffer for finish_reply() */ + if (reply == -EINVAL) + reply = 0; // Error reply length + if (reply >= 0 && fsg->data_dir == DATA_DIR_TO_HOST) { + reply = min((u32) reply, fsg->data_size_from_cmnd); + bh->inreq->length = reply; + bh->state = BUF_STATE_FULL; + fsg->residue -= reply; + } // Otherwise it's already set + + return 0; +} + + +/*-------------------------------------------------------------------------*/ + +static int received_cbw(struct fsg_dev *fsg, struct fsg_buffhd *bh) +{ + struct usb_request *req = bh->outreq; + struct bulk_cb_wrap *cbw = req->buf; + + /* Was this a real packet? Should it be ignored? */ + if (req->status || test_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags)) + return -EINVAL; + + /* Is the CBW valid? */ + if (req->actual != US_BULK_CB_WRAP_LEN || + cbw->Signature != cpu_to_le32( + US_BULK_CB_SIGN)) { + DBG(fsg, "invalid CBW: len %u sig 0x%x\n", + req->actual, + le32_to_cpu(cbw->Signature)); + + /* The Bulk-only spec says we MUST stall the IN endpoint + * (6.6.1), so it's unavoidable. It also says we must + * retain this state until the next reset, but there's + * no way to tell the controller driver it should ignore + * Clear-Feature(HALT) requests. + * + * We aren't required to halt the OUT endpoint; instead + * we can simply accept and discard any data received + * until the next reset. */ + wedge_bulk_in_endpoint(fsg); + set_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags); + return -EINVAL; + } + + /* Is the CBW meaningful? */ + if (cbw->Lun >= FSG_MAX_LUNS || cbw->Flags & ~US_BULK_FLAG_IN || + cbw->Length <= 0 || cbw->Length > MAX_COMMAND_SIZE) { + DBG(fsg, "non-meaningful CBW: lun = %u, flags = 0x%x, " + "cmdlen %u\n", + cbw->Lun, cbw->Flags, cbw->Length); + + /* We can do anything we want here, so let's stall the + * bulk pipes if we are allowed to. */ + if (mod_data.can_stall) { + fsg_set_halt(fsg, fsg->bulk_out); + halt_bulk_in_endpoint(fsg); + } + return -EINVAL; + } + + /* Save the command for later */ + fsg->cmnd_size = cbw->Length; + memcpy(fsg->cmnd, cbw->CDB, fsg->cmnd_size); + if (cbw->Flags & US_BULK_FLAG_IN) + fsg->data_dir = DATA_DIR_TO_HOST; + else + fsg->data_dir = DATA_DIR_FROM_HOST; + fsg->data_size = le32_to_cpu(cbw->DataTransferLength); + if (fsg->data_size == 0) + fsg->data_dir = DATA_DIR_NONE; + fsg->lun = cbw->Lun; + fsg->tag = cbw->Tag; + return 0; +} + + +static int get_next_command(struct fsg_dev *fsg) +{ + struct fsg_buffhd *bh; + int rc = 0; + + if (transport_is_bbb()) { + + /* Wait for the next buffer to become available */ + bh = fsg->next_buffhd_to_fill; + while (bh->state != BUF_STATE_EMPTY) { + rc = sleep_thread(fsg); + if (rc) + return rc; + } + + /* Queue a request to read a Bulk-only CBW */ + set_bulk_out_req_length(fsg, bh, US_BULK_CB_WRAP_LEN); + start_transfer(fsg, fsg->bulk_out, bh->outreq, + &bh->outreq_busy, &bh->state); + + /* We will drain the buffer in software, which means we + * can reuse it for the next filling. No need to advance + * next_buffhd_to_fill. */ + + /* Wait for the CBW to arrive */ + while (bh->state != BUF_STATE_FULL) { + rc = sleep_thread(fsg); + if (rc) + return rc; + } + smp_rmb(); + rc = received_cbw(fsg, bh); + bh->state = BUF_STATE_EMPTY; + + } else { // USB_PR_CB or USB_PR_CBI + + /* Wait for the next command to arrive */ + while (fsg->cbbuf_cmnd_size == 0) { + rc = sleep_thread(fsg); + if (rc) + return rc; + } + + /* Is the previous status interrupt request still busy? + * The host is allowed to skip reading the status, + * so we must cancel it. */ + if (fsg->intreq_busy) + usb_ep_dequeue(fsg->intr_in, fsg->intreq); + + /* Copy the command and mark the buffer empty */ + fsg->data_dir = DATA_DIR_UNKNOWN; + spin_lock_irq(&fsg->lock); + fsg->cmnd_size = fsg->cbbuf_cmnd_size; + memcpy(fsg->cmnd, fsg->cbbuf_cmnd, fsg->cmnd_size); + fsg->cbbuf_cmnd_size = 0; + spin_unlock_irq(&fsg->lock); + + /* Use LUN from the command */ + fsg->lun = fsg->cmnd[1] >> 5; + } + + /* Update current lun */ + if (fsg->lun >= 0 && fsg->lun < fsg->nluns) + fsg->curlun = &fsg->luns[fsg->lun]; + else + fsg->curlun = NULL; + + return rc; +} + + +/*-------------------------------------------------------------------------*/ + +static int enable_endpoint(struct fsg_dev *fsg, struct usb_ep *ep, + const struct usb_endpoint_descriptor *d) +{ + int rc; + + ep->driver_data = fsg; + ep->desc = d; + rc = usb_ep_enable(ep); + if (rc) + ERROR(fsg, "can't enable %s, result %d\n", ep->name, rc); + return rc; +} + +static int alloc_request(struct fsg_dev *fsg, struct usb_ep *ep, + struct usb_request **preq) +{ + *preq = usb_ep_alloc_request(ep, GFP_ATOMIC); + if (*preq) + return 0; + ERROR(fsg, "can't allocate request for %s\n", ep->name); + return -ENOMEM; +} + +/* + * Reset interface setting and re-init endpoint state (toggle etc). + * Call with altsetting < 0 to disable the interface. The only other + * available altsetting is 0, which enables the interface. + */ +static int do_set_interface(struct fsg_dev *fsg, int altsetting) +{ + int rc = 0; + int i; + const struct usb_endpoint_descriptor *d; + + if (fsg->running) + DBG(fsg, "reset interface\n"); + +reset: + /* Deallocate the requests */ + for (i = 0; i < fsg_num_buffers; ++i) { + struct fsg_buffhd *bh = &fsg->buffhds[i]; + + if (bh->inreq) { + usb_ep_free_request(fsg->bulk_in, bh->inreq); + bh->inreq = NULL; + } + if (bh->outreq) { + usb_ep_free_request(fsg->bulk_out, bh->outreq); + bh->outreq = NULL; + } + } + if (fsg->intreq) { + usb_ep_free_request(fsg->intr_in, fsg->intreq); + fsg->intreq = NULL; + } + + /* Disable the endpoints */ + if (fsg->bulk_in_enabled) { + usb_ep_disable(fsg->bulk_in); + fsg->bulk_in_enabled = 0; + } + if (fsg->bulk_out_enabled) { + usb_ep_disable(fsg->bulk_out); + fsg->bulk_out_enabled = 0; + } + if (fsg->intr_in_enabled) { + usb_ep_disable(fsg->intr_in); + fsg->intr_in_enabled = 0; + } + + fsg->running = 0; + if (altsetting < 0 || rc != 0) + return rc; + + DBG(fsg, "set interface %d\n", altsetting); + + /* Enable the endpoints */ + d = fsg_ep_desc(fsg->gadget, + &fsg_fs_bulk_in_desc, &fsg_hs_bulk_in_desc, + &fsg_ss_bulk_in_desc); + if ((rc = enable_endpoint(fsg, fsg->bulk_in, d)) != 0) + goto reset; + fsg->bulk_in_enabled = 1; + + d = fsg_ep_desc(fsg->gadget, + &fsg_fs_bulk_out_desc, &fsg_hs_bulk_out_desc, + &fsg_ss_bulk_out_desc); + if ((rc = enable_endpoint(fsg, fsg->bulk_out, d)) != 0) + goto reset; + fsg->bulk_out_enabled = 1; + fsg->bulk_out_maxpacket = usb_endpoint_maxp(d); + clear_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags); + + if (transport_is_cbi()) { + d = fsg_ep_desc(fsg->gadget, + &fsg_fs_intr_in_desc, &fsg_hs_intr_in_desc, + &fsg_ss_intr_in_desc); + if ((rc = enable_endpoint(fsg, fsg->intr_in, d)) != 0) + goto reset; + fsg->intr_in_enabled = 1; + } + + /* Allocate the requests */ + for (i = 0; i < fsg_num_buffers; ++i) { + struct fsg_buffhd *bh = &fsg->buffhds[i]; + + if ((rc = alloc_request(fsg, fsg->bulk_in, &bh->inreq)) != 0) + goto reset; + if ((rc = alloc_request(fsg, fsg->bulk_out, &bh->outreq)) != 0) + goto reset; + bh->inreq->buf = bh->outreq->buf = bh->buf; + bh->inreq->context = bh->outreq->context = bh; + bh->inreq->complete = bulk_in_complete; + bh->outreq->complete = bulk_out_complete; + } + if (transport_is_cbi()) { + if ((rc = alloc_request(fsg, fsg->intr_in, &fsg->intreq)) != 0) + goto reset; + fsg->intreq->complete = intr_in_complete; + } + + fsg->running = 1; + for (i = 0; i < fsg->nluns; ++i) + fsg->luns[i].unit_attention_data = SS_RESET_OCCURRED; + return rc; +} + + +/* + * Change our operational configuration. This code must agree with the code + * that returns config descriptors, and with interface altsetting code. + * + * It's also responsible for power management interactions. Some + * configurations might not work with our current power sources. + * For now we just assume the gadget is always self-powered. + */ +static int do_set_config(struct fsg_dev *fsg, u8 new_config) +{ + int rc = 0; + + /* Disable the single interface */ + if (fsg->config != 0) { + DBG(fsg, "reset config\n"); + fsg->config = 0; + rc = do_set_interface(fsg, -1); + } + + /* Enable the interface */ + if (new_config != 0) { + fsg->config = new_config; + if ((rc = do_set_interface(fsg, 0)) != 0) + fsg->config = 0; // Reset on errors + else + INFO(fsg, "%s config #%d\n", + usb_speed_string(fsg->gadget->speed), + fsg->config); + } + return rc; +} + + +/*-------------------------------------------------------------------------*/ + +static void handle_exception(struct fsg_dev *fsg) +{ + siginfo_t info; + int sig; + int i; + int num_active; + struct fsg_buffhd *bh; + enum fsg_state old_state; + u8 new_config; + struct fsg_lun *curlun; + unsigned int exception_req_tag; + int rc; + + /* Clear the existing signals. Anything but SIGUSR1 is converted + * into a high-priority EXIT exception. */ + for (;;) { + sig = dequeue_signal_lock(current, ¤t->blocked, &info); + if (!sig) + break; + if (sig != SIGUSR1) { + if (fsg->state < FSG_STATE_EXIT) + DBG(fsg, "Main thread exiting on signal\n"); + raise_exception(fsg, FSG_STATE_EXIT); + } + } + + /* Cancel all the pending transfers */ + if (fsg->intreq_busy) + usb_ep_dequeue(fsg->intr_in, fsg->intreq); + for (i = 0; i < fsg_num_buffers; ++i) { + bh = &fsg->buffhds[i]; + if (bh->inreq_busy) + usb_ep_dequeue(fsg->bulk_in, bh->inreq); + if (bh->outreq_busy) + usb_ep_dequeue(fsg->bulk_out, bh->outreq); + } + + /* Wait until everything is idle */ + for (;;) { + num_active = fsg->intreq_busy; + for (i = 0; i < fsg_num_buffers; ++i) { + bh = &fsg->buffhds[i]; + num_active += bh->inreq_busy + bh->outreq_busy; + } + if (num_active == 0) + break; + if (sleep_thread(fsg)) + return; + } + + /* Clear out the controller's fifos */ + if (fsg->bulk_in_enabled) + usb_ep_fifo_flush(fsg->bulk_in); + if (fsg->bulk_out_enabled) + usb_ep_fifo_flush(fsg->bulk_out); + if (fsg->intr_in_enabled) + usb_ep_fifo_flush(fsg->intr_in); + + /* Reset the I/O buffer states and pointers, the SCSI + * state, and the exception. Then invoke the handler. */ + spin_lock_irq(&fsg->lock); + + for (i = 0; i < fsg_num_buffers; ++i) { + bh = &fsg->buffhds[i]; + bh->state = BUF_STATE_EMPTY; + } + fsg->next_buffhd_to_fill = fsg->next_buffhd_to_drain = + &fsg->buffhds[0]; + + exception_req_tag = fsg->exception_req_tag; + new_config = fsg->new_config; + old_state = fsg->state; + + if (old_state == FSG_STATE_ABORT_BULK_OUT) + fsg->state = FSG_STATE_STATUS_PHASE; + else { + for (i = 0; i < fsg->nluns; ++i) { + curlun = &fsg->luns[i]; + curlun->prevent_medium_removal = 0; + curlun->sense_data = curlun->unit_attention_data = + SS_NO_SENSE; + curlun->sense_data_info = 0; + curlun->info_valid = 0; + } + fsg->state = FSG_STATE_IDLE; + } + spin_unlock_irq(&fsg->lock); + + /* Carry out any extra actions required for the exception */ + switch (old_state) { + default: + break; + + case FSG_STATE_ABORT_BULK_OUT: + send_status(fsg); + spin_lock_irq(&fsg->lock); + if (fsg->state == FSG_STATE_STATUS_PHASE) + fsg->state = FSG_STATE_IDLE; + spin_unlock_irq(&fsg->lock); + break; + + case FSG_STATE_RESET: + /* In case we were forced against our will to halt a + * bulk endpoint, clear the halt now. (The SuperH UDC + * requires this.) */ + if (test_and_clear_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags)) + usb_ep_clear_halt(fsg->bulk_in); + + if (transport_is_bbb()) { + if (fsg->ep0_req_tag == exception_req_tag) + ep0_queue(fsg); // Complete the status stage + + } else if (transport_is_cbi()) + send_status(fsg); // Status by interrupt pipe + + /* Technically this should go here, but it would only be + * a waste of time. Ditto for the INTERFACE_CHANGE and + * CONFIG_CHANGE cases. */ + // for (i = 0; i < fsg->nluns; ++i) + // fsg->luns[i].unit_attention_data = SS_RESET_OCCURRED; + break; + + case FSG_STATE_INTERFACE_CHANGE: + rc = do_set_interface(fsg, 0); + if (fsg->ep0_req_tag != exception_req_tag) + break; + if (rc != 0) // STALL on errors + fsg_set_halt(fsg, fsg->ep0); + else // Complete the status stage + ep0_queue(fsg); + break; + + case FSG_STATE_CONFIG_CHANGE: + rc = do_set_config(fsg, new_config); + if (fsg->ep0_req_tag != exception_req_tag) + break; + if (rc != 0) // STALL on errors + fsg_set_halt(fsg, fsg->ep0); + else // Complete the status stage + ep0_queue(fsg); + break; + + case FSG_STATE_DISCONNECT: + for (i = 0; i < fsg->nluns; ++i) + fsg_lun_fsync_sub(fsg->luns + i); + do_set_config(fsg, 0); // Unconfigured state + break; + + case FSG_STATE_EXIT: + case FSG_STATE_TERMINATED: + do_set_config(fsg, 0); // Free resources + spin_lock_irq(&fsg->lock); + fsg->state = FSG_STATE_TERMINATED; // Stop the thread + spin_unlock_irq(&fsg->lock); + break; + } +} + + +/*-------------------------------------------------------------------------*/ + +static int fsg_main_thread(void *fsg_) +{ + struct fsg_dev *fsg = fsg_; + + /* Allow the thread to be killed by a signal, but set the signal mask + * to block everything but INT, TERM, KILL, and USR1. */ + allow_signal(SIGINT); + allow_signal(SIGTERM); + allow_signal(SIGKILL); + allow_signal(SIGUSR1); + + /* Allow the thread to be frozen */ + set_freezable(); + + /* Arrange for userspace references to be interpreted as kernel + * pointers. That way we can pass a kernel pointer to a routine + * that expects a __user pointer and it will work okay. */ + set_fs(get_ds()); + + /* The main loop */ + while (fsg->state != FSG_STATE_TERMINATED) { + if (exception_in_progress(fsg) || signal_pending(current)) { + handle_exception(fsg); + continue; + } + + if (!fsg->running) { + sleep_thread(fsg); + continue; + } + + if (get_next_command(fsg)) + continue; + + spin_lock_irq(&fsg->lock); + if (!exception_in_progress(fsg)) + fsg->state = FSG_STATE_DATA_PHASE; + spin_unlock_irq(&fsg->lock); + + if (do_scsi_command(fsg) || finish_reply(fsg)) + continue; + + spin_lock_irq(&fsg->lock); + if (!exception_in_progress(fsg)) + fsg->state = FSG_STATE_STATUS_PHASE; + spin_unlock_irq(&fsg->lock); + + if (send_status(fsg)) + continue; + + spin_lock_irq(&fsg->lock); + if (!exception_in_progress(fsg)) + fsg->state = FSG_STATE_IDLE; + spin_unlock_irq(&fsg->lock); + } + + spin_lock_irq(&fsg->lock); + fsg->thread_task = NULL; + spin_unlock_irq(&fsg->lock); + + /* If we are exiting because of a signal, unregister the + * gadget driver. */ + if (test_and_clear_bit(REGISTERED, &fsg->atomic_bitflags)) + usb_gadget_unregister_driver(&fsg_driver); + + /* Let the unbind and cleanup routines know the thread has exited */ + complete_and_exit(&fsg->thread_notifier, 0); +} + + +/*-------------------------------------------------------------------------*/ + + +/* The write permissions and store_xxx pointers are set in fsg_bind() */ +static DEVICE_ATTR(ro, 0444, fsg_show_ro, NULL); +static DEVICE_ATTR(nofua, 0644, fsg_show_nofua, NULL); +static DEVICE_ATTR(file, 0444, fsg_show_file, NULL); + + +/*-------------------------------------------------------------------------*/ + +static void fsg_release(struct kref *ref) +{ + struct fsg_dev *fsg = container_of(ref, struct fsg_dev, ref); + + kfree(fsg->luns); + kfree(fsg); +} + +static void lun_release(struct device *dev) +{ + struct rw_semaphore *filesem = dev_get_drvdata(dev); + struct fsg_dev *fsg = + container_of(filesem, struct fsg_dev, filesem); + + kref_put(&fsg->ref, fsg_release); +} + +static void /* __init_or_exit */ fsg_unbind(struct usb_gadget *gadget) +{ + struct fsg_dev *fsg = get_gadget_data(gadget); + int i; + struct fsg_lun *curlun; + struct usb_request *req = fsg->ep0req; + + DBG(fsg, "unbind\n"); + clear_bit(REGISTERED, &fsg->atomic_bitflags); + + /* If the thread isn't already dead, tell it to exit now */ + if (fsg->state != FSG_STATE_TERMINATED) { + raise_exception(fsg, FSG_STATE_EXIT); + wait_for_completion(&fsg->thread_notifier); + + /* The cleanup routine waits for this completion also */ + complete(&fsg->thread_notifier); + } + + /* Unregister the sysfs attribute files and the LUNs */ + for (i = 0; i < fsg->nluns; ++i) { + curlun = &fsg->luns[i]; + if (curlun->registered) { + device_remove_file(&curlun->dev, &dev_attr_nofua); + device_remove_file(&curlun->dev, &dev_attr_ro); + device_remove_file(&curlun->dev, &dev_attr_file); + fsg_lun_close(curlun); + device_unregister(&curlun->dev); + curlun->registered = 0; + } + } + + /* Free the data buffers */ + for (i = 0; i < fsg_num_buffers; ++i) + kfree(fsg->buffhds[i].buf); + + /* Free the request and buffer for endpoint 0 */ + if (req) { + kfree(req->buf); + usb_ep_free_request(fsg->ep0, req); + } + + set_gadget_data(gadget, NULL); +} + + +static int __init check_parameters(struct fsg_dev *fsg) +{ + int prot; + int gcnum; + + /* Store the default values */ + mod_data.transport_type = USB_PR_BULK; + mod_data.transport_name = "Bulk-only"; + mod_data.protocol_type = USB_SC_SCSI; + mod_data.protocol_name = "Transparent SCSI"; + + /* Some peripheral controllers are known not to be able to + * halt bulk endpoints correctly. If one of them is present, + * disable stalls. + */ + if (gadget_is_at91(fsg->gadget)) + mod_data.can_stall = 0; + + if (mod_data.release == 0xffff) { // Parameter wasn't set + gcnum = usb_gadget_controller_number(fsg->gadget); + if (gcnum >= 0) + mod_data.release = 0x0300 + gcnum; + else { + WARNING(fsg, "controller '%s' not recognized\n", + fsg->gadget->name); + mod_data.release = 0x0399; + } + } + + prot = simple_strtol(mod_data.protocol_parm, NULL, 0); + +#ifdef CONFIG_USB_FILE_STORAGE_TEST + if (strnicmp(mod_data.transport_parm, "BBB", 10) == 0) { + ; // Use default setting + } else if (strnicmp(mod_data.transport_parm, "CB", 10) == 0) { + mod_data.transport_type = USB_PR_CB; + mod_data.transport_name = "Control-Bulk"; + } else if (strnicmp(mod_data.transport_parm, "CBI", 10) == 0) { + mod_data.transport_type = USB_PR_CBI; + mod_data.transport_name = "Control-Bulk-Interrupt"; + } else { + ERROR(fsg, "invalid transport: %s\n", mod_data.transport_parm); + return -EINVAL; + } + + if (strnicmp(mod_data.protocol_parm, "SCSI", 10) == 0 || + prot == USB_SC_SCSI) { + ; // Use default setting + } else if (strnicmp(mod_data.protocol_parm, "RBC", 10) == 0 || + prot == USB_SC_RBC) { + mod_data.protocol_type = USB_SC_RBC; + mod_data.protocol_name = "RBC"; + } else if (strnicmp(mod_data.protocol_parm, "8020", 4) == 0 || + strnicmp(mod_data.protocol_parm, "ATAPI", 10) == 0 || + prot == USB_SC_8020) { + mod_data.protocol_type = USB_SC_8020; + mod_data.protocol_name = "8020i (ATAPI)"; + } else if (strnicmp(mod_data.protocol_parm, "QIC", 3) == 0 || + prot == USB_SC_QIC) { + mod_data.protocol_type = USB_SC_QIC; + mod_data.protocol_name = "QIC-157"; + } else if (strnicmp(mod_data.protocol_parm, "UFI", 10) == 0 || + prot == USB_SC_UFI) { + mod_data.protocol_type = USB_SC_UFI; + mod_data.protocol_name = "UFI"; + } else if (strnicmp(mod_data.protocol_parm, "8070", 4) == 0 || + prot == USB_SC_8070) { + mod_data.protocol_type = USB_SC_8070; + mod_data.protocol_name = "8070i"; + } else { + ERROR(fsg, "invalid protocol: %s\n", mod_data.protocol_parm); + return -EINVAL; + } + + mod_data.buflen &= PAGE_CACHE_MASK; + if (mod_data.buflen <= 0) { + ERROR(fsg, "invalid buflen\n"); + return -ETOOSMALL; + } + +#endif /* CONFIG_USB_FILE_STORAGE_TEST */ + + /* Serial string handling. + * On a real device, the serial string would be loaded + * from permanent storage. */ + if (mod_data.serial) { + const char *ch; + unsigned len = 0; + + /* Sanity check : + * The CB[I] specification limits the serial string to + * 12 uppercase hexadecimal characters. + * BBB need at least 12 uppercase hexadecimal characters, + * with a maximum of 126. */ + for (ch = mod_data.serial; *ch; ++ch) { + ++len; + if ((*ch < '0' || *ch > '9') && + (*ch < 'A' || *ch > 'F')) { /* not uppercase hex */ + WARNING(fsg, + "Invalid serial string character: %c\n", + *ch); + goto no_serial; + } + } + if (len > 126 || + (mod_data.transport_type == USB_PR_BULK && len < 12) || + (mod_data.transport_type != USB_PR_BULK && len > 12)) { + WARNING(fsg, "Invalid serial string length!\n"); + goto no_serial; + } + fsg_strings[FSG_STRING_SERIAL - 1].s = mod_data.serial; + } else { + WARNING(fsg, "No serial-number string provided!\n"); + no_serial: + device_desc.iSerialNumber = 0; + } + + return 0; +} + + +static int __init fsg_bind(struct usb_gadget *gadget) +{ + struct fsg_dev *fsg = the_fsg; + int rc; + int i; + struct fsg_lun *curlun; + struct usb_ep *ep; + struct usb_request *req; + char *pathbuf, *p; + + fsg->gadget = gadget; + set_gadget_data(gadget, fsg); + fsg->ep0 = gadget->ep0; + fsg->ep0->driver_data = fsg; + + if ((rc = check_parameters(fsg)) != 0) + goto out; + + if (mod_data.removable) { // Enable the store_xxx attributes + dev_attr_file.attr.mode = 0644; + dev_attr_file.store = fsg_store_file; + if (!mod_data.cdrom) { + dev_attr_ro.attr.mode = 0644; + dev_attr_ro.store = fsg_store_ro; + } + } + + /* Only for removable media? */ + dev_attr_nofua.attr.mode = 0644; + dev_attr_nofua.store = fsg_store_nofua; + + /* Find out how many LUNs there should be */ + i = mod_data.nluns; + if (i == 0) + i = max(mod_data.num_filenames, 1u); + if (i > FSG_MAX_LUNS) { + ERROR(fsg, "invalid number of LUNs: %d\n", i); + rc = -EINVAL; + goto out; + } + + /* Create the LUNs, open their backing files, and register the + * LUN devices in sysfs. */ + fsg->luns = kzalloc(i * sizeof(struct fsg_lun), GFP_KERNEL); + if (!fsg->luns) { + rc = -ENOMEM; + goto out; + } + fsg->nluns = i; + + for (i = 0; i < fsg->nluns; ++i) { + curlun = &fsg->luns[i]; + curlun->cdrom = !!mod_data.cdrom; + curlun->ro = mod_data.cdrom || mod_data.ro[i]; + curlun->initially_ro = curlun->ro; + curlun->removable = mod_data.removable; + curlun->nofua = mod_data.nofua[i]; + curlun->dev.release = lun_release; + curlun->dev.parent = &gadget->dev; + curlun->dev.driver = &fsg_driver.driver; + dev_set_drvdata(&curlun->dev, &fsg->filesem); + dev_set_name(&curlun->dev,"%s-lun%d", + dev_name(&gadget->dev), i); + + kref_get(&fsg->ref); + rc = device_register(&curlun->dev); + if (rc) { + INFO(fsg, "failed to register LUN%d: %d\n", i, rc); + put_device(&curlun->dev); + goto out; + } + curlun->registered = 1; + + rc = device_create_file(&curlun->dev, &dev_attr_ro); + if (rc) + goto out; + rc = device_create_file(&curlun->dev, &dev_attr_nofua); + if (rc) + goto out; + rc = device_create_file(&curlun->dev, &dev_attr_file); + if (rc) + goto out; + + if (mod_data.file[i] && *mod_data.file[i]) { + rc = fsg_lun_open(curlun, mod_data.file[i]); + if (rc) + goto out; + } else if (!mod_data.removable) { + ERROR(fsg, "no file given for LUN%d\n", i); + rc = -EINVAL; + goto out; + } + } + + /* Find all the endpoints we will use */ + usb_ep_autoconfig_reset(gadget); + ep = usb_ep_autoconfig(gadget, &fsg_fs_bulk_in_desc); + if (!ep) + goto autoconf_fail; + ep->driver_data = fsg; // claim the endpoint + fsg->bulk_in = ep; + + ep = usb_ep_autoconfig(gadget, &fsg_fs_bulk_out_desc); + if (!ep) + goto autoconf_fail; + ep->driver_data = fsg; // claim the endpoint + fsg->bulk_out = ep; + + if (transport_is_cbi()) { + ep = usb_ep_autoconfig(gadget, &fsg_fs_intr_in_desc); + if (!ep) + goto autoconf_fail; + ep->driver_data = fsg; // claim the endpoint + fsg->intr_in = ep; + } + + /* Fix up the descriptors */ + device_desc.idVendor = cpu_to_le16(mod_data.vendor); + device_desc.idProduct = cpu_to_le16(mod_data.product); + device_desc.bcdDevice = cpu_to_le16(mod_data.release); + + i = (transport_is_cbi() ? 3 : 2); // Number of endpoints + fsg_intf_desc.bNumEndpoints = i; + fsg_intf_desc.bInterfaceSubClass = mod_data.protocol_type; + fsg_intf_desc.bInterfaceProtocol = mod_data.transport_type; + fsg_fs_function[i + FSG_FS_FUNCTION_PRE_EP_ENTRIES] = NULL; + + if (gadget_is_dualspeed(gadget)) { + fsg_hs_function[i + FSG_HS_FUNCTION_PRE_EP_ENTRIES] = NULL; + + /* Assume endpoint addresses are the same for both speeds */ + fsg_hs_bulk_in_desc.bEndpointAddress = + fsg_fs_bulk_in_desc.bEndpointAddress; + fsg_hs_bulk_out_desc.bEndpointAddress = + fsg_fs_bulk_out_desc.bEndpointAddress; + fsg_hs_intr_in_desc.bEndpointAddress = + fsg_fs_intr_in_desc.bEndpointAddress; + } + + if (gadget_is_superspeed(gadget)) { + unsigned max_burst; + + fsg_ss_function[i + FSG_SS_FUNCTION_PRE_EP_ENTRIES] = NULL; + + /* Calculate bMaxBurst, we know packet size is 1024 */ + max_burst = min_t(unsigned, mod_data.buflen / 1024, 15); + + /* Assume endpoint addresses are the same for both speeds */ + fsg_ss_bulk_in_desc.bEndpointAddress = + fsg_fs_bulk_in_desc.bEndpointAddress; + fsg_ss_bulk_in_comp_desc.bMaxBurst = max_burst; + + fsg_ss_bulk_out_desc.bEndpointAddress = + fsg_fs_bulk_out_desc.bEndpointAddress; + fsg_ss_bulk_out_comp_desc.bMaxBurst = max_burst; + } + + if (gadget_is_otg(gadget)) + fsg_otg_desc.bmAttributes |= USB_OTG_HNP; + + rc = -ENOMEM; + + /* Allocate the request and buffer for endpoint 0 */ + fsg->ep0req = req = usb_ep_alloc_request(fsg->ep0, GFP_KERNEL); + if (!req) + goto out; + req->buf = kmalloc(EP0_BUFSIZE, GFP_KERNEL); + if (!req->buf) + goto out; + req->complete = ep0_complete; + + /* Allocate the data buffers */ + for (i = 0; i < fsg_num_buffers; ++i) { + struct fsg_buffhd *bh = &fsg->buffhds[i]; + + /* Allocate for the bulk-in endpoint. We assume that + * the buffer will also work with the bulk-out (and + * interrupt-in) endpoint. */ + bh->buf = kmalloc(mod_data.buflen, GFP_KERNEL); + if (!bh->buf) + goto out; + bh->next = bh + 1; + } + fsg->buffhds[fsg_num_buffers - 1].next = &fsg->buffhds[0]; + + /* This should reflect the actual gadget power source */ + usb_gadget_set_selfpowered(gadget); + + snprintf(fsg_string_manufacturer, sizeof fsg_string_manufacturer, + "%s %s with %s", + init_utsname()->sysname, init_utsname()->release, + gadget->name); + + fsg->thread_task = kthread_create(fsg_main_thread, fsg, + "file-storage-gadget"); + if (IS_ERR(fsg->thread_task)) { + rc = PTR_ERR(fsg->thread_task); + goto out; + } + + INFO(fsg, DRIVER_DESC ", version: " DRIVER_VERSION "\n"); + INFO(fsg, "NOTE: This driver is deprecated. " + "Consider using g_mass_storage instead.\n"); + INFO(fsg, "Number of LUNs=%d\n", fsg->nluns); + + pathbuf = kmalloc(PATH_MAX, GFP_KERNEL); + for (i = 0; i < fsg->nluns; ++i) { + curlun = &fsg->luns[i]; + if (fsg_lun_is_open(curlun)) { + p = NULL; + if (pathbuf) { + p = d_path(&curlun->filp->f_path, + pathbuf, PATH_MAX); + if (IS_ERR(p)) + p = NULL; + } + LINFO(curlun, "ro=%d, nofua=%d, file: %s\n", + curlun->ro, curlun->nofua, (p ? p : "(error)")); + } + } + kfree(pathbuf); + + DBG(fsg, "transport=%s (x%02x)\n", + mod_data.transport_name, mod_data.transport_type); + DBG(fsg, "protocol=%s (x%02x)\n", + mod_data.protocol_name, mod_data.protocol_type); + DBG(fsg, "VendorID=x%04x, ProductID=x%04x, Release=x%04x\n", + mod_data.vendor, mod_data.product, mod_data.release); + DBG(fsg, "removable=%d, stall=%d, cdrom=%d, buflen=%u\n", + mod_data.removable, mod_data.can_stall, + mod_data.cdrom, mod_data.buflen); + DBG(fsg, "I/O thread pid: %d\n", task_pid_nr(fsg->thread_task)); + + set_bit(REGISTERED, &fsg->atomic_bitflags); + + /* Tell the thread to start working */ + wake_up_process(fsg->thread_task); + return 0; + +autoconf_fail: + ERROR(fsg, "unable to autoconfigure all endpoints\n"); + rc = -ENOTSUPP; + +out: + fsg->state = FSG_STATE_TERMINATED; // The thread is dead + fsg_unbind(gadget); + complete(&fsg->thread_notifier); + return rc; +} + + +/*-------------------------------------------------------------------------*/ + +static void fsg_suspend(struct usb_gadget *gadget) +{ + struct fsg_dev *fsg = get_gadget_data(gadget); + + DBG(fsg, "suspend\n"); + set_bit(SUSPENDED, &fsg->atomic_bitflags); +} + +static void fsg_resume(struct usb_gadget *gadget) +{ + struct fsg_dev *fsg = get_gadget_data(gadget); + + DBG(fsg, "resume\n"); + clear_bit(SUSPENDED, &fsg->atomic_bitflags); +} + + +/*-------------------------------------------------------------------------*/ + +static struct usb_gadget_driver fsg_driver = { + .max_speed = USB_SPEED_SUPER, + .function = (char *) fsg_string_product, + .unbind = fsg_unbind, + .disconnect = fsg_disconnect, + .setup = fsg_setup, + .suspend = fsg_suspend, + .resume = fsg_resume, + + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + // .release = ... + // .suspend = ... + // .resume = ... + }, +}; + + +static int __init fsg_alloc(void) +{ + struct fsg_dev *fsg; + + fsg = kzalloc(sizeof *fsg + + fsg_num_buffers * sizeof *(fsg->buffhds), GFP_KERNEL); + + if (!fsg) + return -ENOMEM; + spin_lock_init(&fsg->lock); + init_rwsem(&fsg->filesem); + kref_init(&fsg->ref); + init_completion(&fsg->thread_notifier); + + the_fsg = fsg; + return 0; +} + + +static int __init fsg_init(void) +{ + int rc; + struct fsg_dev *fsg; + + rc = fsg_num_buffers_validate(); + if (rc != 0) + return rc; + + if ((rc = fsg_alloc()) != 0) + return rc; + fsg = the_fsg; + if ((rc = usb_gadget_probe_driver(&fsg_driver, fsg_bind)) != 0) + kref_put(&fsg->ref, fsg_release); + return rc; +} +module_init(fsg_init); + + +static void __exit fsg_cleanup(void) +{ + struct fsg_dev *fsg = the_fsg; + + /* Unregister the driver iff the thread hasn't already done so */ + if (test_and_clear_bit(REGISTERED, &fsg->atomic_bitflags)) + usb_gadget_unregister_driver(&fsg_driver); + + /* Wait for the thread to finish up */ + wait_for_completion(&fsg->thread_notifier); + + kref_put(&fsg->ref, fsg_release); +} +module_exit(fsg_cleanup); diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 407d947b34ea5b524c467c7c992d9774ded5414a..ed0cd59de37e8f47369f86dba751c78933722abc 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -763,6 +763,19 @@ config USB_HWA_HCD To compile this driver a module, choose M here: the module will be called "hwa-hc". +config USB_DWCOTG + tristate "Synopsis DWC host support" + depends on USB + help + The Synopsis DWC controller is a dual-role + host/peripheral/OTG ("On The Go") USB controllers. + + Enable this option to support this IP in host controller mode. + If unsure, say N. + + To compile this driver as a module, choose M here: the + modules built will be called dwc_otg and dwc_common_port. + config USB_IMX21_HCD tristate "i.MX21 HCD support" depends on ARM && ARCH_MXC diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 2644537b7bcfb5cc8452243838815d3aa5669409..d555089559bc2feef1a07f1f4147135f591bf087 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -75,6 +75,8 @@ obj-$(CONFIG_USB_SL811_CS) += sl811_cs.o obj-$(CONFIG_USB_U132_HCD) += u132-hcd.o obj-$(CONFIG_USB_R8A66597_HCD) += r8a66597-hcd.o obj-$(CONFIG_USB_HWA_HCD) += hwa-hc.o + +obj-$(CONFIG_USB_DWCOTG) += dwc_otg/ dwc_common_port/ obj-$(CONFIG_USB_IMX21_HCD) += imx21-hcd.o obj-$(CONFIG_USB_FSL_USB2) += fsl-mph-dr-of.o obj-$(CONFIG_USB_EHCI_FSL) += fsl-mph-dr-of.o diff --git a/drivers/usb/host/dwc_common_port/Makefile b/drivers/usb/host/dwc_common_port/Makefile new file mode 100644 index 0000000000000000000000000000000000000000..f10d466d1aea8696fb394aebebb9945e6b79a991 --- /dev/null +++ b/drivers/usb/host/dwc_common_port/Makefile @@ -0,0 +1,58 @@ +# +# Makefile for DWC_common library +# + +ifneq ($(KERNELRELEASE),) + +ccflags-y += -DDWC_LINUX +#ccflags-y += -DDEBUG +#ccflags-y += -DDWC_DEBUG_REGS +#ccflags-y += -DDWC_DEBUG_MEMORY + +ccflags-y += -DDWC_LIBMODULE +ccflags-y += -DDWC_CCLIB +#ccflags-y += -DDWC_CRYPTOLIB +ccflags-y += -DDWC_NOTIFYLIB +ccflags-y += -DDWC_UTFLIB + +obj-$(CONFIG_USB_DWCOTG) += dwc_common_port_lib.o +dwc_common_port_lib-objs := dwc_cc.o dwc_modpow.o dwc_dh.o \ + dwc_crypto.o dwc_notifier.o \ + dwc_common_linux.o dwc_mem.o + +kernrelwd := $(subst ., ,$(KERNELRELEASE)) +kernrel3 := $(word 1,$(kernrelwd)).$(word 2,$(kernrelwd)).$(word 3,$(kernrelwd)) + +ifneq ($(kernrel3),2.6.20) +# grayg - I only know that we use ccflags-y in 2.6.31 actually +ccflags-y += $(CPPFLAGS) +endif + +else + +#ifeq ($(KDIR),) +#$(error Must give "KDIR=/path/to/kernel/source" on command line or in environment) +#endif + +ifeq ($(ARCH),) +$(error Must give "ARCH=" on command line or in environment. Also, if \ + cross-compiling, must give "CROSS_COMPILE=/path/to/compiler/plus/tool-prefix-") +endif + +ifeq ($(DOXYGEN),) +DOXYGEN := doxygen +endif + +default: + $(MAKE) -C$(KDIR) M=$(PWD) ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) modules + +docs: $(wildcard *.[hc]) doc/doxygen.cfg + $(DOXYGEN) doc/doxygen.cfg + +tags: $(wildcard *.[hc]) + $(CTAGS) -e $(wildcard *.[hc]) $(wildcard linux/*.[hc]) $(wildcard $(KDIR)/include/linux/usb*.h) + +endif + +clean: + rm -rf *.o *.ko .*.cmd *.mod.c .*.o.d .*.o.tmp modules.order Module.markers Module.symvers .tmp_versions/ diff --git a/drivers/usb/host/dwc_common_port/Makefile.fbsd b/drivers/usb/host/dwc_common_port/Makefile.fbsd new file mode 100644 index 0000000000000000000000000000000000000000..45db9915b9d31f39dd9aaf97772b3c31234c4ce6 --- /dev/null +++ b/drivers/usb/host/dwc_common_port/Makefile.fbsd @@ -0,0 +1,17 @@ +CFLAGS += -I/sys/i386/compile/GENERIC -I/sys/i386/include -I/usr/include +CFLAGS += -DDWC_FREEBSD +CFLAGS += -DDEBUG +#CFLAGS += -DDWC_DEBUG_REGS +#CFLAGS += -DDWC_DEBUG_MEMORY + +#CFLAGS += -DDWC_LIBMODULE +#CFLAGS += -DDWC_CCLIB +#CFLAGS += -DDWC_CRYPTOLIB +#CFLAGS += -DDWC_NOTIFYLIB +#CFLAGS += -DDWC_UTFLIB + +KMOD = dwc_common_port_lib +SRCS = dwc_cc.c dwc_modpow.c dwc_dh.c dwc_crypto.c dwc_notifier.c \ + dwc_common_fbsd.c dwc_mem.c + +.include diff --git a/drivers/usb/host/dwc_common_port/Makefile.linux b/drivers/usb/host/dwc_common_port/Makefile.linux new file mode 100644 index 0000000000000000000000000000000000000000..0cef7b461bd5084f261b28ebd05d62418956956e --- /dev/null +++ b/drivers/usb/host/dwc_common_port/Makefile.linux @@ -0,0 +1,49 @@ +# +# Makefile for DWC_common library +# +ifneq ($(KERNELRELEASE),) + +ccflags-y += -DDWC_LINUX +#ccflags-y += -DDEBUG +#ccflags-y += -DDWC_DEBUG_REGS +#ccflags-y += -DDWC_DEBUG_MEMORY + +ccflags-y += -DDWC_LIBMODULE +ccflags-y += -DDWC_CCLIB +ccflags-y += -DDWC_CRYPTOLIB +ccflags-y += -DDWC_NOTIFYLIB +ccflags-y += -DDWC_UTFLIB + +obj-m := dwc_common_port_lib.o +dwc_common_port_lib-objs := dwc_cc.o dwc_modpow.o dwc_dh.o \ + dwc_crypto.o dwc_notifier.o \ + dwc_common_linux.o dwc_mem.o + +else + +ifeq ($(KDIR),) +$(error Must give "KDIR=/path/to/kernel/source" on command line or in environment) +endif + +ifeq ($(ARCH),) +$(error Must give "ARCH=" on command line or in environment. Also, if \ + cross-compiling, must give "CROSS_COMPILE=/path/to/compiler/plus/tool-prefix-") +endif + +ifeq ($(DOXYGEN),) +DOXYGEN := doxygen +endif + +default: + $(MAKE) -C$(KDIR) M=$(PWD) ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) modules + +docs: $(wildcard *.[hc]) doc/doxygen.cfg + $(DOXYGEN) doc/doxygen.cfg + +tags: $(wildcard *.[hc]) + $(CTAGS) -e $(wildcard *.[hc]) $(wildcard linux/*.[hc]) $(wildcard $(KDIR)/include/linux/usb*.h) + +endif + +clean: + rm -rf *.o *.ko .*.cmd *.mod.c .*.o.d .*.o.tmp modules.order Module.markers Module.symvers .tmp_versions/ diff --git a/drivers/usb/host/dwc_common_port/changes.txt b/drivers/usb/host/dwc_common_port/changes.txt new file mode 100644 index 0000000000000000000000000000000000000000..f6839f92c2760d8dc29e514a1f6833d356cfd217 --- /dev/null +++ b/drivers/usb/host/dwc_common_port/changes.txt @@ -0,0 +1,174 @@ + +dwc_read_reg32() and friends now take an additional parameter, a pointer to an +IO context struct. The IO context struct should live in an os-dependent struct +in your driver. As an example, the dwc_usb3 driver has an os-dependent struct +named 'os_dep' embedded in the main device struct. So there these calls look +like this: + + dwc_read_reg32(&usb3_dev->os_dep.ioctx, &pcd->dev_global_regs->dcfg); + + dwc_write_reg32(&usb3_dev->os_dep.ioctx, + &pcd->dev_global_regs->dcfg, 0); + +Note that for the existing Linux driver ports, it is not necessary to actually +define the 'ioctx' member in the os-dependent struct. Since Linux does not +require an IO context, its macros for dwc_read_reg32() and friends do not +use the context pointer, so it is optimized away by the compiler. But it is +necessary to add the pointer parameter to all of the call sites, to be ready +for any future ports (such as FreeBSD) which do require an IO context. + + +Similarly, dwc_alloc(), dwc_alloc_atomic(), dwc_strdup(), and dwc_free() now +take an additional parameter, a pointer to a memory context. Examples: + + addr = dwc_alloc(&usb3_dev->os_dep.memctx, size); + + dwc_free(&usb3_dev->os_dep.memctx, addr); + +Again, for the Linux ports, it is not necessary to actually define the memctx +member, but it is necessary to add the pointer parameter to all of the call +sites. + + +Same for dwc_dma_alloc() and dwc_dma_free(). Examples: + + virt_addr = dwc_dma_alloc(&usb3_dev->os_dep.dmactx, size, &phys_addr); + + dwc_dma_free(&usb3_dev->os_dep.dmactx, size, virt_addr, phys_addr); + + +Same for dwc_mutex_alloc() and dwc_mutex_free(). Examples: + + mutex = dwc_mutex_alloc(&usb3_dev->os_dep.mtxctx); + + dwc_mutex_free(&usb3_dev->os_dep.mtxctx, mutex); + + +Same for dwc_spinlock_alloc() and dwc_spinlock_free(). Examples: + + lock = dwc_spinlock_alloc(&usb3_dev->osdep.splctx); + + dwc_spinlock_free(&usb3_dev->osdep.splctx, lock); + + +Same for dwc_timer_alloc(). Example: + + timer = dwc_timer_alloc(&usb3_dev->os_dep.tmrctx, "dwc_usb3_tmr1", + cb_func, cb_data); + + +Same for dwc_waitq_alloc(). Example: + + waitq = dwc_waitq_alloc(&usb3_dev->os_dep.wtqctx); + + +Same for dwc_thread_run(). Example: + + thread = dwc_thread_run(&usb3_dev->os_dep.thdctx, func, + "dwc_usb3_thd1", data); + + +Same for dwc_workq_alloc(). Example: + + workq = dwc_workq_alloc(&usb3_dev->osdep.wkqctx, "dwc_usb3_wkq1"); + + +Same for dwc_task_alloc(). Example: + + task = dwc_task_alloc(&usb3_dev->os_dep.tskctx, "dwc_usb3_tsk1", + cb_func, cb_data); + + +In addition to the context pointer additions, a few core functions have had +other changes made to their parameters: + +The 'flags' parameter to dwc_spinlock_irqsave() and dwc_spinunlock_irqrestore() +has been changed from a uint64_t to a dwc_irqflags_t. + +dwc_thread_should_stop() now takes a 'dwc_thread_t *' parameter, because the +FreeBSD equivalent of that function requires it. + +And, in addition to the context pointer, dwc_task_alloc() also adds a +'char *name' parameter, to be consistent with dwc_thread_run() and +dwc_workq_alloc(), and because the FreeBSD equivalent of that function +requires a unique name. + + +Here is a complete list of the core functions that now take a pointer to a +context as their first parameter: + + dwc_read_reg32 + dwc_read_reg64 + dwc_write_reg32 + dwc_write_reg64 + dwc_modify_reg32 + dwc_modify_reg64 + dwc_alloc + dwc_alloc_atomic + dwc_strdup + dwc_free + dwc_dma_alloc + dwc_dma_free + dwc_mutex_alloc + dwc_mutex_free + dwc_spinlock_alloc + dwc_spinlock_free + dwc_timer_alloc + dwc_waitq_alloc + dwc_thread_run + dwc_workq_alloc + dwc_task_alloc Also adds a 'char *name' as its 2nd parameter + +And here are the core functions that have other changes to their parameters: + + dwc_spinlock_irqsave 'flags' param is now a 'dwc_irqflags_t *' + dwc_spinunlock_irqrestore 'flags' param is now a 'dwc_irqflags_t' + dwc_thread_should_stop Adds a 'dwc_thread_t *' parameter + + + +The changes to the core functions also require some of the other library +functions to change: + + dwc_cc_if_alloc() and dwc_cc_if_free() now take a 'void *memctx' + (for memory allocation) as the 1st param and a 'void *mtxctx' + (for mutex allocation) as the 2nd param. + + dwc_cc_clear(), dwc_cc_add(), dwc_cc_change(), dwc_cc_remove(), + dwc_cc_data_for_save(), and dwc_cc_restore_from_data() now take a + 'void *memctx' as the 1st param. + + dwc_dh_modpow(), dwc_dh_pk(), and dwc_dh_derive_keys() now take a + 'void *memctx' as the 1st param. + + dwc_modpow() now takes a 'void *memctx' as the 1st param. + + dwc_alloc_notification_manager() now takes a 'void *memctx' as the + 1st param and a 'void *wkqctx' (for work queue allocation) as the 2nd + param, and also now returns an integer value that is non-zero if + allocation of its data structures or work queue fails. + + dwc_register_notifier() now takes a 'void *memctx' as the 1st param. + + dwc_memory_debug_start() now takes a 'void *mem_ctx' as the first + param, and also now returns an integer value that is non-zero if + allocation of its data structures fails. + + + +Other miscellaneous changes: + +The DEBUG_MEMORY and DEBUG_REGS #define's have been renamed to +DWC_DEBUG_MEMORY and DWC_DEBUG_REGS. + +The following #define's have been added to allow selectively compiling library +features: + + DWC_CCLIB + DWC_CRYPTOLIB + DWC_NOTIFYLIB + DWC_UTFLIB + +A DWC_LIBMODULE #define has also been added. If this is not defined, then the +module code in dwc_common_linux.c is not compiled in. This allows linking the +library code directly into a driver module, instead of as a standalone module. diff --git a/drivers/usb/host/dwc_common_port/doc/doxygen.cfg b/drivers/usb/host/dwc_common_port/doc/doxygen.cfg new file mode 100644 index 0000000000000000000000000000000000000000..89aa887af29dfc3a71580acec4f10dc7cf00185d --- /dev/null +++ b/drivers/usb/host/dwc_common_port/doc/doxygen.cfg @@ -0,0 +1,270 @@ +# Doxyfile 1.4.5 + +#--------------------------------------------------------------------------- +# Project related configuration options +#--------------------------------------------------------------------------- +PROJECT_NAME = "Synopsys DWC Portability and Common Library for UWB" +PROJECT_NUMBER = +OUTPUT_DIRECTORY = doc +CREATE_SUBDIRS = NO +OUTPUT_LANGUAGE = English +BRIEF_MEMBER_DESC = YES +REPEAT_BRIEF = YES +ABBREVIATE_BRIEF = "The $name class" \ + "The $name widget" \ + "The $name file" \ + is \ + provides \ + specifies \ + contains \ + represents \ + a \ + an \ + the +ALWAYS_DETAILED_SEC = YES +INLINE_INHERITED_MEMB = NO +FULL_PATH_NAMES = NO +STRIP_FROM_PATH = .. +STRIP_FROM_INC_PATH = +SHORT_NAMES = NO +JAVADOC_AUTOBRIEF = YES +MULTILINE_CPP_IS_BRIEF = NO +DETAILS_AT_TOP = YES +INHERIT_DOCS = YES +SEPARATE_MEMBER_PAGES = NO +TAB_SIZE = 8 +ALIASES = +OPTIMIZE_OUTPUT_FOR_C = YES +OPTIMIZE_OUTPUT_JAVA = NO +BUILTIN_STL_SUPPORT = NO +DISTRIBUTE_GROUP_DOC = NO +SUBGROUPING = NO +#--------------------------------------------------------------------------- +# Build related configuration options +#--------------------------------------------------------------------------- +EXTRACT_ALL = NO +EXTRACT_PRIVATE = NO +EXTRACT_STATIC = YES +EXTRACT_LOCAL_CLASSES = NO +EXTRACT_LOCAL_METHODS = NO +HIDE_UNDOC_MEMBERS = NO +HIDE_UNDOC_CLASSES = NO +HIDE_FRIEND_COMPOUNDS = NO +HIDE_IN_BODY_DOCS = NO +INTERNAL_DOCS = NO +CASE_SENSE_NAMES = YES +HIDE_SCOPE_NAMES = NO +SHOW_INCLUDE_FILES = NO +INLINE_INFO = YES +SORT_MEMBER_DOCS = NO +SORT_BRIEF_DOCS = NO +SORT_BY_SCOPE_NAME = NO +GENERATE_TODOLIST = YES +GENERATE_TESTLIST = YES +GENERATE_BUGLIST = YES +GENERATE_DEPRECATEDLIST= YES +ENABLED_SECTIONS = +MAX_INITIALIZER_LINES = 30 +SHOW_USED_FILES = YES +SHOW_DIRECTORIES = YES +FILE_VERSION_FILTER = +#--------------------------------------------------------------------------- +# configuration options related to warning and progress messages +#--------------------------------------------------------------------------- +QUIET = YES +WARNINGS = YES +WARN_IF_UNDOCUMENTED = NO +WARN_IF_DOC_ERROR = YES +WARN_NO_PARAMDOC = YES +WARN_FORMAT = "$file:$line: $text" +WARN_LOGFILE = +#--------------------------------------------------------------------------- +# configuration options related to the input files +#--------------------------------------------------------------------------- +INPUT = . +FILE_PATTERNS = *.c \ + *.cc \ + *.cxx \ + *.cpp \ + *.c++ \ + *.d \ + *.java \ + *.ii \ + *.ixx \ + *.ipp \ + *.i++ \ + *.inl \ + *.h \ + *.hh \ + *.hxx \ + *.hpp \ + *.h++ \ + *.idl \ + *.odl \ + *.cs \ + *.php \ + *.php3 \ + *.inc \ + *.m \ + *.mm \ + *.dox \ + *.py \ + *.C \ + *.CC \ + *.C++ \ + *.II \ + *.I++ \ + *.H \ + *.HH \ + *.H++ \ + *.CS \ + *.PHP \ + *.PHP3 \ + *.M \ + *.MM \ + *.PY +RECURSIVE = NO +EXCLUDE = +EXCLUDE_SYMLINKS = NO +EXCLUDE_PATTERNS = +EXAMPLE_PATH = +EXAMPLE_PATTERNS = * +EXAMPLE_RECURSIVE = NO +IMAGE_PATH = +INPUT_FILTER = +FILTER_PATTERNS = +FILTER_SOURCE_FILES = NO +#--------------------------------------------------------------------------- +# configuration options related to source browsing +#--------------------------------------------------------------------------- +SOURCE_BROWSER = NO +INLINE_SOURCES = NO +STRIP_CODE_COMMENTS = YES +REFERENCED_BY_RELATION = YES +REFERENCES_RELATION = YES +USE_HTAGS = NO +VERBATIM_HEADERS = NO +#--------------------------------------------------------------------------- +# configuration options related to the alphabetical class index +#--------------------------------------------------------------------------- +ALPHABETICAL_INDEX = NO +COLS_IN_ALPHA_INDEX = 5 +IGNORE_PREFIX = +#--------------------------------------------------------------------------- +# configuration options related to the HTML output +#--------------------------------------------------------------------------- +GENERATE_HTML = YES +HTML_OUTPUT = html +HTML_FILE_EXTENSION = .html +HTML_HEADER = +HTML_FOOTER = +HTML_STYLESHEET = +HTML_ALIGN_MEMBERS = YES +GENERATE_HTMLHELP = NO +CHM_FILE = +HHC_LOCATION = +GENERATE_CHI = NO +BINARY_TOC = NO +TOC_EXPAND = NO +DISABLE_INDEX = NO +ENUM_VALUES_PER_LINE = 4 +GENERATE_TREEVIEW = YES +TREEVIEW_WIDTH = 250 +#--------------------------------------------------------------------------- +# configuration options related to the LaTeX output +#--------------------------------------------------------------------------- +GENERATE_LATEX = NO +LATEX_OUTPUT = latex +LATEX_CMD_NAME = latex +MAKEINDEX_CMD_NAME = makeindex +COMPACT_LATEX = NO +PAPER_TYPE = a4wide +EXTRA_PACKAGES = +LATEX_HEADER = +PDF_HYPERLINKS = NO +USE_PDFLATEX = NO +LATEX_BATCHMODE = NO +LATEX_HIDE_INDICES = NO +#--------------------------------------------------------------------------- +# configuration options related to the RTF output +#--------------------------------------------------------------------------- +GENERATE_RTF = NO +RTF_OUTPUT = rtf +COMPACT_RTF = NO +RTF_HYPERLINKS = NO +RTF_STYLESHEET_FILE = +RTF_EXTENSIONS_FILE = +#--------------------------------------------------------------------------- +# configuration options related to the man page output +#--------------------------------------------------------------------------- +GENERATE_MAN = NO +MAN_OUTPUT = man +MAN_EXTENSION = .3 +MAN_LINKS = NO +#--------------------------------------------------------------------------- +# configuration options related to the XML output +#--------------------------------------------------------------------------- +GENERATE_XML = NO +XML_OUTPUT = xml +XML_SCHEMA = +XML_DTD = +XML_PROGRAMLISTING = YES +#--------------------------------------------------------------------------- +# configuration options for the AutoGen Definitions output +#--------------------------------------------------------------------------- +GENERATE_AUTOGEN_DEF = NO +#--------------------------------------------------------------------------- +# configuration options related to the Perl module output +#--------------------------------------------------------------------------- +GENERATE_PERLMOD = NO +PERLMOD_LATEX = NO +PERLMOD_PRETTY = YES +PERLMOD_MAKEVAR_PREFIX = +#--------------------------------------------------------------------------- +# Configuration options related to the preprocessor +#--------------------------------------------------------------------------- +ENABLE_PREPROCESSING = YES +MACRO_EXPANSION = NO +EXPAND_ONLY_PREDEF = NO +SEARCH_INCLUDES = YES +INCLUDE_PATH = +INCLUDE_FILE_PATTERNS = +PREDEFINED = DEBUG DEBUG_MEMORY +EXPAND_AS_DEFINED = +SKIP_FUNCTION_MACROS = YES +#--------------------------------------------------------------------------- +# Configuration::additions related to external references +#--------------------------------------------------------------------------- +TAGFILES = +GENERATE_TAGFILE = +ALLEXTERNALS = NO +EXTERNAL_GROUPS = YES +PERL_PATH = /usr/bin/perl +#--------------------------------------------------------------------------- +# Configuration options related to the dot tool +#--------------------------------------------------------------------------- +CLASS_DIAGRAMS = YES +HIDE_UNDOC_RELATIONS = YES +HAVE_DOT = NO +CLASS_GRAPH = YES +COLLABORATION_GRAPH = YES +GROUP_GRAPHS = YES +UML_LOOK = NO +TEMPLATE_RELATIONS = NO +INCLUDE_GRAPH = NO +INCLUDED_BY_GRAPH = YES +CALL_GRAPH = NO +GRAPHICAL_HIERARCHY = YES +DIRECTORY_GRAPH = YES +DOT_IMAGE_FORMAT = png +DOT_PATH = +DOTFILE_DIRS = +MAX_DOT_GRAPH_DEPTH = 1000 +DOT_TRANSPARENT = NO +DOT_MULTI_TARGETS = NO +GENERATE_LEGEND = YES +DOT_CLEANUP = YES +#--------------------------------------------------------------------------- +# Configuration::additions related to the search engine +#--------------------------------------------------------------------------- +SEARCHENGINE = NO diff --git a/drivers/usb/host/dwc_common_port/dwc_cc.c b/drivers/usb/host/dwc_common_port/dwc_cc.c new file mode 100644 index 0000000000000000000000000000000000000000..5ec2ae28698c15d1c441d3104706b04e9f1dde27 --- /dev/null +++ b/drivers/usb/host/dwc_common_port/dwc_cc.c @@ -0,0 +1,532 @@ +/* ========================================================================= + * $File: //dwh/usb_iip/dev/software/dwc_common_port_2/dwc_cc.c $ + * $Revision: #4 $ + * $Date: 2010/11/04 $ + * $Change: 1621692 $ + * + * Synopsys Portability Library Software and documentation + * (hereinafter, "Software") is an Unsupported proprietary work of + * Synopsys, Inc. unless otherwise expressly agreed to in writing + * between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product + * under any End User Software License Agreement or Agreement for + * Licensed Product with Synopsys or any supplement thereto. You are + * permitted to use and redistribute this Software in source and binary + * forms, with or without modification, provided that redistributions + * of source code must retain this notice. You may not view, use, + * disclose, copy or distribute this file or any information contained + * herein except pursuant to this license grant from Synopsys. If you + * do not agree with this notice, including the disclaimer below, then + * you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" + * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL + * SYNOPSYS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE + * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================= */ +#ifdef DWC_CCLIB + +#include "dwc_cc.h" + +typedef struct dwc_cc +{ + uint32_t uid; + uint8_t chid[16]; + uint8_t cdid[16]; + uint8_t ck[16]; + uint8_t *name; + uint8_t length; + DWC_CIRCLEQ_ENTRY(dwc_cc) list_entry; +} dwc_cc_t; + +DWC_CIRCLEQ_HEAD(context_list, dwc_cc); + +/** The main structure for CC management. */ +struct dwc_cc_if +{ + dwc_mutex_t *mutex; + char *filename; + + unsigned is_host:1; + + dwc_notifier_t *notifier; + + struct context_list list; +}; + +#ifdef DEBUG +static inline void dump_bytes(char *name, uint8_t *bytes, int len) +{ + int i; + DWC_PRINTF("%s: ", name); + for (i=0; ilength = length; + cc->name = dwc_alloc(mem_ctx, length); + if (!cc->name) { + dwc_free(mem_ctx, cc); + return NULL; + } + + DWC_MEMCPY(cc->name, name, length); + } + + return cc; +} + +static void free_cc(void *mem_ctx, dwc_cc_t *cc) +{ + if (cc->name) { + dwc_free(mem_ctx, cc->name); + } + dwc_free(mem_ctx, cc); +} + +static uint32_t next_uid(dwc_cc_if_t *cc_if) +{ + uint32_t uid = 0; + dwc_cc_t *cc; + DWC_CIRCLEQ_FOREACH(cc, &cc_if->list, list_entry) { + if (cc->uid > uid) { + uid = cc->uid; + } + } + + if (uid == 0) { + uid = 255; + } + + return uid + 1; +} + +static dwc_cc_t *cc_find(dwc_cc_if_t *cc_if, uint32_t uid) +{ + dwc_cc_t *cc; + DWC_CIRCLEQ_FOREACH(cc, &cc_if->list, list_entry) { + if (cc->uid == uid) { + return cc; + } + } + return NULL; +} + +static unsigned int cc_data_size(dwc_cc_if_t *cc_if) +{ + unsigned int size = 0; + dwc_cc_t *cc; + DWC_CIRCLEQ_FOREACH(cc, &cc_if->list, list_entry) { + size += (48 + 1); + if (cc->name) { + size += cc->length; + } + } + return size; +} + +static uint32_t cc_match_chid(dwc_cc_if_t *cc_if, uint8_t *chid) +{ + uint32_t uid = 0; + dwc_cc_t *cc; + + DWC_CIRCLEQ_FOREACH(cc, &cc_if->list, list_entry) { + if (DWC_MEMCMP(cc->chid, chid, 16) == 0) { + uid = cc->uid; + break; + } + } + return uid; +} +static uint32_t cc_match_cdid(dwc_cc_if_t *cc_if, uint8_t *cdid) +{ + uint32_t uid = 0; + dwc_cc_t *cc; + + DWC_CIRCLEQ_FOREACH(cc, &cc_if->list, list_entry) { + if (DWC_MEMCMP(cc->cdid, cdid, 16) == 0) { + uid = cc->uid; + break; + } + } + return uid; +} + +/* Internal cc_add */ +static int32_t cc_add(void *mem_ctx, dwc_cc_if_t *cc_if, uint8_t *chid, + uint8_t *cdid, uint8_t *ck, uint8_t *name, uint8_t length) +{ + dwc_cc_t *cc; + uint32_t uid; + + if (cc_if->is_host) { + uid = cc_match_cdid(cc_if, cdid); + } + else { + uid = cc_match_chid(cc_if, chid); + } + + if (uid) { + DWC_DEBUGC("Replacing previous connection context id=%d name=%p name_len=%d", uid, name, length); + cc = cc_find(cc_if, uid); + } + else { + cc = alloc_cc(mem_ctx, name, length); + cc->uid = next_uid(cc_if); + DWC_CIRCLEQ_INSERT_TAIL(&cc_if->list, cc, list_entry); + } + + DWC_MEMCPY(&(cc->chid[0]), chid, 16); + DWC_MEMCPY(&(cc->cdid[0]), cdid, 16); + DWC_MEMCPY(&(cc->ck[0]), ck, 16); + + DWC_DEBUGC("Added connection context id=%d name=%p name_len=%d", cc->uid, name, length); + dump_bytes("CHID", cc->chid, 16); + dump_bytes("CDID", cc->cdid, 16); + dump_bytes("CK", cc->ck, 16); + return cc->uid; +} + +/* Internal cc_clear */ +static void cc_clear(void *mem_ctx, dwc_cc_if_t *cc_if) +{ + while (!DWC_CIRCLEQ_EMPTY(&cc_if->list)) { + dwc_cc_t *cc = DWC_CIRCLEQ_FIRST(&cc_if->list); + DWC_CIRCLEQ_REMOVE_INIT(&cc_if->list, cc, list_entry); + free_cc(mem_ctx, cc); + } +} + +dwc_cc_if_t *dwc_cc_if_alloc(void *mem_ctx, void *mtx_ctx, + dwc_notifier_t *notifier, unsigned is_host) +{ + dwc_cc_if_t *cc_if = NULL; + + /* Allocate a common_cc_if structure */ + cc_if = dwc_alloc(mem_ctx, sizeof(dwc_cc_if_t)); + + if (!cc_if) + return NULL; + +#if (defined(DWC_LINUX) && defined(CONFIG_DEBUG_MUTEXES)) + DWC_MUTEX_ALLOC_LINUX_DEBUG(cc_if->mutex); +#else + cc_if->mutex = dwc_mutex_alloc(mtx_ctx); +#endif + if (!cc_if->mutex) { + dwc_free(mem_ctx, cc_if); + return NULL; + } + + DWC_CIRCLEQ_INIT(&cc_if->list); + cc_if->is_host = is_host; + cc_if->notifier = notifier; + return cc_if; +} + +void dwc_cc_if_free(void *mem_ctx, void *mtx_ctx, dwc_cc_if_t *cc_if) +{ +#if (defined(DWC_LINUX) && defined(CONFIG_DEBUG_MUTEXES)) + DWC_MUTEX_FREE(cc_if->mutex); +#else + dwc_mutex_free(mtx_ctx, cc_if->mutex); +#endif + cc_clear(mem_ctx, cc_if); + dwc_free(mem_ctx, cc_if); +} + +static void cc_changed(dwc_cc_if_t *cc_if) +{ + if (cc_if->notifier) { + dwc_notify(cc_if->notifier, DWC_CC_LIST_CHANGED_NOTIFICATION, cc_if); + } +} + +void dwc_cc_clear(void *mem_ctx, dwc_cc_if_t *cc_if) +{ + DWC_MUTEX_LOCK(cc_if->mutex); + cc_clear(mem_ctx, cc_if); + DWC_MUTEX_UNLOCK(cc_if->mutex); + cc_changed(cc_if); +} + +int32_t dwc_cc_add(void *mem_ctx, dwc_cc_if_t *cc_if, uint8_t *chid, + uint8_t *cdid, uint8_t *ck, uint8_t *name, uint8_t length) +{ + uint32_t uid; + + DWC_MUTEX_LOCK(cc_if->mutex); + uid = cc_add(mem_ctx, cc_if, chid, cdid, ck, name, length); + DWC_MUTEX_UNLOCK(cc_if->mutex); + cc_changed(cc_if); + + return uid; +} + +void dwc_cc_change(void *mem_ctx, dwc_cc_if_t *cc_if, int32_t id, uint8_t *chid, + uint8_t *cdid, uint8_t *ck, uint8_t *name, uint8_t length) +{ + dwc_cc_t* cc; + + DWC_DEBUGC("Change connection context %d", id); + + DWC_MUTEX_LOCK(cc_if->mutex); + cc = cc_find(cc_if, id); + if (!cc) { + DWC_ERROR("Uid %d not found in cc list\n", id); + DWC_MUTEX_UNLOCK(cc_if->mutex); + return; + } + + if (chid) { + DWC_MEMCPY(&(cc->chid[0]), chid, 16); + } + if (cdid) { + DWC_MEMCPY(&(cc->cdid[0]), cdid, 16); + } + if (ck) { + DWC_MEMCPY(&(cc->ck[0]), ck, 16); + } + + if (name) { + if (cc->name) { + dwc_free(mem_ctx, cc->name); + } + cc->name = dwc_alloc(mem_ctx, length); + if (!cc->name) { + DWC_ERROR("Out of memory in dwc_cc_change()\n"); + DWC_MUTEX_UNLOCK(cc_if->mutex); + return; + } + cc->length = length; + DWC_MEMCPY(cc->name, name, length); + } + + DWC_MUTEX_UNLOCK(cc_if->mutex); + + cc_changed(cc_if); + + DWC_DEBUGC("Changed connection context id=%d\n", id); + dump_bytes("New CHID", cc->chid, 16); + dump_bytes("New CDID", cc->cdid, 16); + dump_bytes("New CK", cc->ck, 16); +} + +void dwc_cc_remove(void *mem_ctx, dwc_cc_if_t *cc_if, int32_t id) +{ + dwc_cc_t *cc; + + DWC_DEBUGC("Removing connection context %d", id); + + DWC_MUTEX_LOCK(cc_if->mutex); + cc = cc_find(cc_if, id); + if (!cc) { + DWC_ERROR("Uid %d not found in cc list\n", id); + DWC_MUTEX_UNLOCK(cc_if->mutex); + return; + } + + DWC_CIRCLEQ_REMOVE_INIT(&cc_if->list, cc, list_entry); + DWC_MUTEX_UNLOCK(cc_if->mutex); + free_cc(mem_ctx, cc); + + cc_changed(cc_if); +} + +uint8_t *dwc_cc_data_for_save(void *mem_ctx, dwc_cc_if_t *cc_if, unsigned int *length) +{ + uint8_t *buf, *x; + uint8_t zero = 0; + dwc_cc_t *cc; + + DWC_MUTEX_LOCK(cc_if->mutex); + *length = cc_data_size(cc_if); + if (!(*length)) { + DWC_MUTEX_UNLOCK(cc_if->mutex); + return NULL; + } + + DWC_DEBUGC("Creating data for saving (length=%d)", *length); + + buf = dwc_alloc(mem_ctx, *length); + if (!buf) { + *length = 0; + DWC_MUTEX_UNLOCK(cc_if->mutex); + return NULL; + } + + x = buf; + DWC_CIRCLEQ_FOREACH(cc, &cc_if->list, list_entry) { + DWC_MEMCPY(x, cc->chid, 16); + x += 16; + DWC_MEMCPY(x, cc->cdid, 16); + x += 16; + DWC_MEMCPY(x, cc->ck, 16); + x += 16; + if (cc->name) { + DWC_MEMCPY(x, &cc->length, 1); + x += 1; + DWC_MEMCPY(x, cc->name, cc->length); + x += cc->length; + } + else { + DWC_MEMCPY(x, &zero, 1); + x += 1; + } + } + DWC_MUTEX_UNLOCK(cc_if->mutex); + + return buf; +} + +void dwc_cc_restore_from_data(void *mem_ctx, dwc_cc_if_t *cc_if, uint8_t *data, uint32_t length) +{ + uint8_t name_length; + uint8_t *name; + uint8_t *chid; + uint8_t *cdid; + uint8_t *ck; + uint32_t i = 0; + + DWC_MUTEX_LOCK(cc_if->mutex); + cc_clear(mem_ctx, cc_if); + + while (i < length) { + chid = &data[i]; + i += 16; + cdid = &data[i]; + i += 16; + ck = &data[i]; + i += 16; + + name_length = data[i]; + i ++; + + if (name_length) { + name = &data[i]; + i += name_length; + } + else { + name = NULL; + } + + /* check to see if we haven't overflown the buffer */ + if (i > length) { + DWC_ERROR("Data format error while attempting to load CCs " + "(nlen=%d, iter=%d, buflen=%d).\n", name_length, i, length); + break; + } + + cc_add(mem_ctx, cc_if, chid, cdid, ck, name, name_length); + } + DWC_MUTEX_UNLOCK(cc_if->mutex); + + cc_changed(cc_if); +} + +uint32_t dwc_cc_match_chid(dwc_cc_if_t *cc_if, uint8_t *chid) +{ + uint32_t uid = 0; + + DWC_MUTEX_LOCK(cc_if->mutex); + uid = cc_match_chid(cc_if, chid); + DWC_MUTEX_UNLOCK(cc_if->mutex); + return uid; +} +uint32_t dwc_cc_match_cdid(dwc_cc_if_t *cc_if, uint8_t *cdid) +{ + uint32_t uid = 0; + + DWC_MUTEX_LOCK(cc_if->mutex); + uid = cc_match_cdid(cc_if, cdid); + DWC_MUTEX_UNLOCK(cc_if->mutex); + return uid; +} + +uint8_t *dwc_cc_ck(dwc_cc_if_t *cc_if, int32_t id) +{ + uint8_t *ck = NULL; + dwc_cc_t *cc; + + DWC_MUTEX_LOCK(cc_if->mutex); + cc = cc_find(cc_if, id); + if (cc) { + ck = cc->ck; + } + DWC_MUTEX_UNLOCK(cc_if->mutex); + + return ck; + +} + +uint8_t *dwc_cc_chid(dwc_cc_if_t *cc_if, int32_t id) +{ + uint8_t *retval = NULL; + dwc_cc_t *cc; + + DWC_MUTEX_LOCK(cc_if->mutex); + cc = cc_find(cc_if, id); + if (cc) { + retval = cc->chid; + } + DWC_MUTEX_UNLOCK(cc_if->mutex); + + return retval; +} + +uint8_t *dwc_cc_cdid(dwc_cc_if_t *cc_if, int32_t id) +{ + uint8_t *retval = NULL; + dwc_cc_t *cc; + + DWC_MUTEX_LOCK(cc_if->mutex); + cc = cc_find(cc_if, id); + if (cc) { + retval = cc->cdid; + } + DWC_MUTEX_UNLOCK(cc_if->mutex); + + return retval; +} + +uint8_t *dwc_cc_name(dwc_cc_if_t *cc_if, int32_t id, uint8_t *length) +{ + uint8_t *retval = NULL; + dwc_cc_t *cc; + + DWC_MUTEX_LOCK(cc_if->mutex); + *length = 0; + cc = cc_find(cc_if, id); + if (cc) { + *length = cc->length; + retval = cc->name; + } + DWC_MUTEX_UNLOCK(cc_if->mutex); + + return retval; +} + +#endif /* DWC_CCLIB */ diff --git a/drivers/usb/host/dwc_common_port/dwc_cc.h b/drivers/usb/host/dwc_common_port/dwc_cc.h new file mode 100644 index 0000000000000000000000000000000000000000..f86e6f21792b9961bda7d569f4d35f7076947546 --- /dev/null +++ b/drivers/usb/host/dwc_common_port/dwc_cc.h @@ -0,0 +1,224 @@ +/* ========================================================================= + * $File: //dwh/usb_iip/dev/software/dwc_common_port_2/dwc_cc.h $ + * $Revision: #4 $ + * $Date: 2010/09/28 $ + * $Change: 1596182 $ + * + * Synopsys Portability Library Software and documentation + * (hereinafter, "Software") is an Unsupported proprietary work of + * Synopsys, Inc. unless otherwise expressly agreed to in writing + * between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product + * under any End User Software License Agreement or Agreement for + * Licensed Product with Synopsys or any supplement thereto. You are + * permitted to use and redistribute this Software in source and binary + * forms, with or without modification, provided that redistributions + * of source code must retain this notice. You may not view, use, + * disclose, copy or distribute this file or any information contained + * herein except pursuant to this license grant from Synopsys. If you + * do not agree with this notice, including the disclaimer below, then + * you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" + * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL + * SYNOPSYS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE + * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================= */ +#ifndef _DWC_CC_H_ +#define _DWC_CC_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +/** @file + * + * This file defines the Context Context library. + * + * The main data structure is dwc_cc_if_t which is returned by either the + * dwc_cc_if_alloc function or returned by the module to the user via a provided + * function. The data structure is opaque and should only be manipulated via the + * functions provied in this API. + * + * It manages a list of connection contexts and operations can be performed to + * add, remove, query, search, and change, those contexts. Additionally, + * a dwc_notifier_t object can be requested from the manager so that + * the user can be notified whenever the context list has changed. + */ + +#include "dwc_os.h" +#include "dwc_list.h" +#include "dwc_notifier.h" + + +/* Notifications */ +#define DWC_CC_LIST_CHANGED_NOTIFICATION "DWC_CC_LIST_CHANGED_NOTIFICATION" + +struct dwc_cc_if; +typedef struct dwc_cc_if dwc_cc_if_t; + + +/** @name Connection Context Operations */ +/** @{ */ + +/** This function allocates memory for a dwc_cc_if_t structure, initializes + * fields to default values, and returns a pointer to the structure or NULL on + * error. */ +extern dwc_cc_if_t *dwc_cc_if_alloc(void *mem_ctx, void *mtx_ctx, + dwc_notifier_t *notifier, unsigned is_host); + +/** Frees the memory for the specified CC structure allocated from + * dwc_cc_if_alloc(). */ +extern void dwc_cc_if_free(void *mem_ctx, void *mtx_ctx, dwc_cc_if_t *cc_if); + +/** Removes all contexts from the connection context list */ +extern void dwc_cc_clear(void *mem_ctx, dwc_cc_if_t *cc_if); + +/** Adds a connection context (CHID, CK, CDID, Name) to the connection context list. + * If a CHID already exists, the CK and name are overwritten. Statistics are + * not overwritten. + * + * @param cc_if The cc_if structure. + * @param chid A pointer to the 16-byte CHID. This value will be copied. + * @param ck A pointer to the 16-byte CK. This value will be copied. + * @param cdid A pointer to the 16-byte CDID. This value will be copied. + * @param name An optional host friendly name as defined in the association model + * spec. Must be a UTF16-LE unicode string. Can be NULL to indicated no name. + * @param length The length othe unicode string. + * @return A unique identifier used to refer to this context that is valid for + * as long as this context is still in the list. */ +extern int32_t dwc_cc_add(void *mem_ctx, dwc_cc_if_t *cc_if, uint8_t *chid, + uint8_t *cdid, uint8_t *ck, uint8_t *name, + uint8_t length); + +/** Changes the CHID, CK, CDID, or Name values of a connection context in the + * list, preserving any accumulated statistics. This would typically be called + * if the host decideds to change the context with a SET_CONNECTION request. + * + * @param cc_if The cc_if structure. + * @param id The identifier of the connection context. + * @param chid A pointer to the 16-byte CHID. This value will be copied. NULL + * indicates no change. + * @param cdid A pointer to the 16-byte CDID. This value will be copied. NULL + * indicates no change. + * @param ck A pointer to the 16-byte CK. This value will be copied. NULL + * indicates no change. + * @param name Host friendly name UTF16-LE. NULL indicates no change. + * @param length Length of name. */ +extern void dwc_cc_change(void *mem_ctx, dwc_cc_if_t *cc_if, int32_t id, + uint8_t *chid, uint8_t *cdid, uint8_t *ck, + uint8_t *name, uint8_t length); + +/** Remove the specified connection context. + * @param cc_if The cc_if structure. + * @param id The identifier of the connection context to remove. */ +extern void dwc_cc_remove(void *mem_ctx, dwc_cc_if_t *cc_if, int32_t id); + +/** Get a binary block of data for the connection context list and attributes. + * This data can be used by the OS specific driver to save the connection + * context list into non-volatile memory. + * + * @param cc_if The cc_if structure. + * @param length Return the length of the data buffer. + * @return A pointer to the data buffer. The memory for this buffer should be + * freed with DWC_FREE() after use. */ +extern uint8_t *dwc_cc_data_for_save(void *mem_ctx, dwc_cc_if_t *cc_if, + unsigned int *length); + +/** Restore the connection context list from the binary data that was previously + * returned from a call to dwc_cc_data_for_save. This can be used by the OS specific + * driver to load a connection context list from non-volatile memory. + * + * @param cc_if The cc_if structure. + * @param data The data bytes as returned from dwc_cc_data_for_save. + * @param length The length of the data. */ +extern void dwc_cc_restore_from_data(void *mem_ctx, dwc_cc_if_t *cc_if, + uint8_t *data, unsigned int length); + +/** Find the connection context from the specified CHID. + * + * @param cc_if The cc_if structure. + * @param chid A pointer to the CHID data. + * @return A non-zero identifier of the connection context if the CHID matches. + * Otherwise returns 0. */ +extern uint32_t dwc_cc_match_chid(dwc_cc_if_t *cc_if, uint8_t *chid); + +/** Find the connection context from the specified CDID. + * + * @param cc_if The cc_if structure. + * @param cdid A pointer to the CDID data. + * @return A non-zero identifier of the connection context if the CHID matches. + * Otherwise returns 0. */ +extern uint32_t dwc_cc_match_cdid(dwc_cc_if_t *cc_if, uint8_t *cdid); + +/** Retrieve the CK from the specified connection context. + * + * @param cc_if The cc_if structure. + * @param id The identifier of the connection context. + * @return A pointer to the CK data. The memory does not need to be freed. */ +extern uint8_t *dwc_cc_ck(dwc_cc_if_t *cc_if, int32_t id); + +/** Retrieve the CHID from the specified connection context. + * + * @param cc_if The cc_if structure. + * @param id The identifier of the connection context. + * @return A pointer to the CHID data. The memory does not need to be freed. */ +extern uint8_t *dwc_cc_chid(dwc_cc_if_t *cc_if, int32_t id); + +/** Retrieve the CDID from the specified connection context. + * + * @param cc_if The cc_if structure. + * @param id The identifier of the connection context. + * @return A pointer to the CDID data. The memory does not need to be freed. */ +extern uint8_t *dwc_cc_cdid(dwc_cc_if_t *cc_if, int32_t id); + +extern uint8_t *dwc_cc_name(dwc_cc_if_t *cc_if, int32_t id, uint8_t *length); + +/** Checks a buffer for non-zero. + * @param id A pointer to a 16 byte buffer. + * @return true if the 16 byte value is non-zero. */ +static inline unsigned dwc_assoc_is_not_zero_id(uint8_t *id) { + int i; + for (i=0; i<16; i++) { + if (id[i]) return 1; + } + return 0; +} + +/** Checks a buffer for zero. + * @param id A pointer to a 16 byte buffer. + * @return true if the 16 byte value is zero. */ +static inline unsigned dwc_assoc_is_zero_id(uint8_t *id) { + return !dwc_assoc_is_not_zero_id(id); +} + +/** Prints an ASCII representation for the 16-byte chid, cdid, or ck, into + * buffer. */ +static inline int dwc_print_id_string(char *buffer, uint8_t *id) { + char *ptr = buffer; + int i; + for (i=0; i<16; i++) { + ptr += DWC_SPRINTF(ptr, "%02x", id[i]); + if (i < 15) { + ptr += DWC_SPRINTF(ptr, " "); + } + } + return ptr - buffer; +} + +/** @} */ + +#ifdef __cplusplus +} +#endif + +#endif /* _DWC_CC_H_ */ diff --git a/drivers/usb/host/dwc_common_port/dwc_common_fbsd.c b/drivers/usb/host/dwc_common_port/dwc_common_fbsd.c new file mode 100644 index 0000000000000000000000000000000000000000..6dd04b58f8f6c6d5ddad3b0b0148ff5dd936ac28 --- /dev/null +++ b/drivers/usb/host/dwc_common_port/dwc_common_fbsd.c @@ -0,0 +1,1308 @@ +#include "dwc_os.h" +#include "dwc_list.h" + +#ifdef DWC_CCLIB +# include "dwc_cc.h" +#endif + +#ifdef DWC_CRYPTOLIB +# include "dwc_modpow.h" +# include "dwc_dh.h" +# include "dwc_crypto.h" +#endif + +#ifdef DWC_NOTIFYLIB +# include "dwc_notifier.h" +#endif + +/* OS-Level Implementations */ + +/* This is the FreeBSD 7.0 kernel implementation of the DWC platform library. */ + + +/* MISC */ + +void *DWC_MEMSET(void *dest, uint8_t byte, uint32_t size) +{ + return memset(dest, byte, size); +} + +void *DWC_MEMCPY(void *dest, void const *src, uint32_t size) +{ + return memcpy(dest, src, size); +} + +void *DWC_MEMMOVE(void *dest, void *src, uint32_t size) +{ + bcopy(src, dest, size); + return dest; +} + +int DWC_MEMCMP(void *m1, void *m2, uint32_t size) +{ + return memcmp(m1, m2, size); +} + +int DWC_STRNCMP(void *s1, void *s2, uint32_t size) +{ + return strncmp(s1, s2, size); +} + +int DWC_STRCMP(void *s1, void *s2) +{ + return strcmp(s1, s2); +} + +int DWC_STRLEN(char const *str) +{ + return strlen(str); +} + +char *DWC_STRCPY(char *to, char const *from) +{ + return strcpy(to, from); +} + +char *DWC_STRDUP(char const *str) +{ + int len = DWC_STRLEN(str) + 1; + char *new = DWC_ALLOC_ATOMIC(len); + + if (!new) { + return NULL; + } + + DWC_MEMCPY(new, str, len); + return new; +} + +int DWC_ATOI(char *str, int32_t *value) +{ + char *end = NULL; + + *value = strtol(str, &end, 0); + if (*end == '\0') { + return 0; + } + + return -1; +} + +int DWC_ATOUI(char *str, uint32_t *value) +{ + char *end = NULL; + + *value = strtoul(str, &end, 0); + if (*end == '\0') { + return 0; + } + + return -1; +} + + +#ifdef DWC_UTFLIB +/* From usbstring.c */ + +int DWC_UTF8_TO_UTF16LE(uint8_t const *s, uint16_t *cp, unsigned len) +{ + int count = 0; + u8 c; + u16 uchar; + + /* this insists on correct encodings, though not minimal ones. + * BUT it currently rejects legit 4-byte UTF-8 code points, + * which need surrogate pairs. (Unicode 3.1 can use them.) + */ + while (len != 0 && (c = (u8) *s++) != 0) { + if (unlikely(c & 0x80)) { + // 2-byte sequence: + // 00000yyyyyxxxxxx = 110yyyyy 10xxxxxx + if ((c & 0xe0) == 0xc0) { + uchar = (c & 0x1f) << 6; + + c = (u8) *s++; + if ((c & 0xc0) != 0xc0) + goto fail; + c &= 0x3f; + uchar |= c; + + // 3-byte sequence (most CJKV characters): + // zzzzyyyyyyxxxxxx = 1110zzzz 10yyyyyy 10xxxxxx + } else if ((c & 0xf0) == 0xe0) { + uchar = (c & 0x0f) << 12; + + c = (u8) *s++; + if ((c & 0xc0) != 0xc0) + goto fail; + c &= 0x3f; + uchar |= c << 6; + + c = (u8) *s++; + if ((c & 0xc0) != 0xc0) + goto fail; + c &= 0x3f; + uchar |= c; + + /* no bogus surrogates */ + if (0xd800 <= uchar && uchar <= 0xdfff) + goto fail; + + // 4-byte sequence (surrogate pairs, currently rare): + // 11101110wwwwzzzzyy + 110111yyyyxxxxxx + // = 11110uuu 10uuzzzz 10yyyyyy 10xxxxxx + // (uuuuu = wwww + 1) + // FIXME accept the surrogate code points (only) + } else + goto fail; + } else + uchar = c; + put_unaligned (cpu_to_le16 (uchar), cp++); + count++; + len--; + } + return count; +fail: + return -1; +} + +#endif /* DWC_UTFLIB */ + + +/* dwc_debug.h */ + +dwc_bool_t DWC_IN_IRQ(void) +{ +// return in_irq(); + return 0; +} + +dwc_bool_t DWC_IN_BH(void) +{ +// return in_softirq(); + return 0; +} + +void DWC_VPRINTF(char *format, va_list args) +{ + vprintf(format, args); +} + +int DWC_VSNPRINTF(char *str, int size, char *format, va_list args) +{ + return vsnprintf(str, size, format, args); +} + +void DWC_PRINTF(char *format, ...) +{ + va_list args; + + va_start(args, format); + DWC_VPRINTF(format, args); + va_end(args); +} + +int DWC_SPRINTF(char *buffer, char *format, ...) +{ + int retval; + va_list args; + + va_start(args, format); + retval = vsprintf(buffer, format, args); + va_end(args); + return retval; +} + +int DWC_SNPRINTF(char *buffer, int size, char *format, ...) +{ + int retval; + va_list args; + + va_start(args, format); + retval = vsnprintf(buffer, size, format, args); + va_end(args); + return retval; +} + +void __DWC_WARN(char *format, ...) +{ + va_list args; + + va_start(args, format); + DWC_VPRINTF(format, args); + va_end(args); +} + +void __DWC_ERROR(char *format, ...) +{ + va_list args; + + va_start(args, format); + DWC_VPRINTF(format, args); + va_end(args); +} + +void DWC_EXCEPTION(char *format, ...) +{ + va_list args; + + va_start(args, format); + DWC_VPRINTF(format, args); + va_end(args); +// BUG_ON(1); ??? +} + +#ifdef DEBUG +void __DWC_DEBUG(char *format, ...) +{ + va_list args; + + va_start(args, format); + DWC_VPRINTF(format, args); + va_end(args); +} +#endif + + +/* dwc_mem.h */ + +#if 0 +dwc_pool_t *DWC_DMA_POOL_CREATE(uint32_t size, + uint32_t align, + uint32_t alloc) +{ + struct dma_pool *pool = dma_pool_create("Pool", NULL, + size, align, alloc); + return (dwc_pool_t *)pool; +} + +void DWC_DMA_POOL_DESTROY(dwc_pool_t *pool) +{ + dma_pool_destroy((struct dma_pool *)pool); +} + +void *DWC_DMA_POOL_ALLOC(dwc_pool_t *pool, uint64_t *dma_addr) +{ +// return dma_pool_alloc((struct dma_pool *)pool, GFP_KERNEL, dma_addr); + return dma_pool_alloc((struct dma_pool *)pool, M_WAITOK, dma_addr); +} + +void *DWC_DMA_POOL_ZALLOC(dwc_pool_t *pool, uint64_t *dma_addr) +{ + void *vaddr = DWC_DMA_POOL_ALLOC(pool, dma_addr); + memset(..); +} + +void DWC_DMA_POOL_FREE(dwc_pool_t *pool, void *vaddr, void *daddr) +{ + dma_pool_free(pool, vaddr, daddr); +} +#endif + +static void dmamap_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error) +{ + if (error) + return; + *(bus_addr_t *)arg = segs[0].ds_addr; +} + +void *__DWC_DMA_ALLOC(void *dma_ctx, uint32_t size, dwc_dma_t *dma_addr) +{ + dwc_dmactx_t *dma = (dwc_dmactx_t *)dma_ctx; + int error; + + error = bus_dma_tag_create( +#if __FreeBSD_version >= 700000 + bus_get_dma_tag(dma->dev), /* parent */ +#else + NULL, /* parent */ +#endif + 4, 0, /* alignment, bounds */ + BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ + BUS_SPACE_MAXADDR, /* highaddr */ + NULL, NULL, /* filter, filterarg */ + size, /* maxsize */ + 1, /* nsegments */ + size, /* maxsegsize */ + 0, /* flags */ + NULL, /* lockfunc */ + NULL, /* lockarg */ + &dma->dma_tag); + if (error) { + device_printf(dma->dev, "%s: bus_dma_tag_create failed: %d\n", + __func__, error); + goto fail_0; + } + + error = bus_dmamem_alloc(dma->dma_tag, &dma->dma_vaddr, + BUS_DMA_NOWAIT | BUS_DMA_COHERENT, &dma->dma_map); + if (error) { + device_printf(dma->dev, "%s: bus_dmamem_alloc(%ju) failed: %d\n", + __func__, (uintmax_t)size, error); + goto fail_1; + } + + dma->dma_paddr = 0; + error = bus_dmamap_load(dma->dma_tag, dma->dma_map, dma->dma_vaddr, size, + dmamap_cb, &dma->dma_paddr, BUS_DMA_NOWAIT); + if (error || dma->dma_paddr == 0) { + device_printf(dma->dev, "%s: bus_dmamap_load failed: %d\n", + __func__, error); + goto fail_2; + } + + *dma_addr = dma->dma_paddr; + return dma->dma_vaddr; + +fail_2: + bus_dmamap_unload(dma->dma_tag, dma->dma_map); +fail_1: + bus_dmamem_free(dma->dma_tag, dma->dma_vaddr, dma->dma_map); + bus_dma_tag_destroy(dma->dma_tag); +fail_0: + dma->dma_map = NULL; + dma->dma_tag = NULL; + + return NULL; +} + +void __DWC_DMA_FREE(void *dma_ctx, uint32_t size, void *virt_addr, dwc_dma_t dma_addr) +{ + dwc_dmactx_t *dma = (dwc_dmactx_t *)dma_ctx; + + if (dma->dma_tag == NULL) + return; + if (dma->dma_map != NULL) { + bus_dmamap_sync(dma->dma_tag, dma->dma_map, + BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); + bus_dmamap_unload(dma->dma_tag, dma->dma_map); + bus_dmamem_free(dma->dma_tag, dma->dma_vaddr, dma->dma_map); + dma->dma_map = NULL; + } + + bus_dma_tag_destroy(dma->dma_tag); + dma->dma_tag = NULL; +} + +void *__DWC_ALLOC(void *mem_ctx, uint32_t size) +{ + return malloc(size, M_DEVBUF, M_WAITOK | M_ZERO); +} + +void *__DWC_ALLOC_ATOMIC(void *mem_ctx, uint32_t size) +{ + return malloc(size, M_DEVBUF, M_NOWAIT | M_ZERO); +} + +void __DWC_FREE(void *mem_ctx, void *addr) +{ + free(addr, M_DEVBUF); +} + + +#ifdef DWC_CRYPTOLIB +/* dwc_crypto.h */ + +void DWC_RANDOM_BYTES(uint8_t *buffer, uint32_t length) +{ + get_random_bytes(buffer, length); +} + +int DWC_AES_CBC(uint8_t *message, uint32_t messagelen, uint8_t *key, uint32_t keylen, uint8_t iv[16], uint8_t *out) +{ + struct crypto_blkcipher *tfm; + struct blkcipher_desc desc; + struct scatterlist sgd; + struct scatterlist sgs; + + tfm = crypto_alloc_blkcipher("cbc(aes)", 0, CRYPTO_ALG_ASYNC); + if (tfm == NULL) { + printk("failed to load transform for aes CBC\n"); + return -1; + } + + crypto_blkcipher_setkey(tfm, key, keylen); + crypto_blkcipher_set_iv(tfm, iv, 16); + + sg_init_one(&sgd, out, messagelen); + sg_init_one(&sgs, message, messagelen); + + desc.tfm = tfm; + desc.flags = 0; + + if (crypto_blkcipher_encrypt(&desc, &sgd, &sgs, messagelen)) { + crypto_free_blkcipher(tfm); + DWC_ERROR("AES CBC encryption failed"); + return -1; + } + + crypto_free_blkcipher(tfm); + return 0; +} + +int DWC_SHA256(uint8_t *message, uint32_t len, uint8_t *out) +{ + struct crypto_hash *tfm; + struct hash_desc desc; + struct scatterlist sg; + + tfm = crypto_alloc_hash("sha256", 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(tfm)) { + DWC_ERROR("Failed to load transform for sha256: %ld", PTR_ERR(tfm)); + return 0; + } + desc.tfm = tfm; + desc.flags = 0; + + sg_init_one(&sg, message, len); + crypto_hash_digest(&desc, &sg, len, out); + crypto_free_hash(tfm); + + return 1; +} + +int DWC_HMAC_SHA256(uint8_t *message, uint32_t messagelen, + uint8_t *key, uint32_t keylen, uint8_t *out) +{ + struct crypto_hash *tfm; + struct hash_desc desc; + struct scatterlist sg; + + tfm = crypto_alloc_hash("hmac(sha256)", 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(tfm)) { + DWC_ERROR("Failed to load transform for hmac(sha256): %ld", PTR_ERR(tfm)); + return 0; + } + desc.tfm = tfm; + desc.flags = 0; + + sg_init_one(&sg, message, messagelen); + crypto_hash_setkey(tfm, key, keylen); + crypto_hash_digest(&desc, &sg, messagelen, out); + crypto_free_hash(tfm); + + return 1; +} + +#endif /* DWC_CRYPTOLIB */ + + +/* Byte Ordering Conversions */ + +uint32_t DWC_CPU_TO_LE32(uint32_t *p) +{ +#ifdef __LITTLE_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + + return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24)); +#endif +} + +uint32_t DWC_CPU_TO_BE32(uint32_t *p) +{ +#ifdef __BIG_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + + return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24)); +#endif +} + +uint32_t DWC_LE32_TO_CPU(uint32_t *p) +{ +#ifdef __LITTLE_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + + return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24)); +#endif +} + +uint32_t DWC_BE32_TO_CPU(uint32_t *p) +{ +#ifdef __BIG_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + + return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24)); +#endif +} + +uint16_t DWC_CPU_TO_LE16(uint16_t *p) +{ +#ifdef __LITTLE_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + return (u_p[1] | (u_p[0] << 8)); +#endif +} + +uint16_t DWC_CPU_TO_BE16(uint16_t *p) +{ +#ifdef __BIG_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + return (u_p[1] | (u_p[0] << 8)); +#endif +} + +uint16_t DWC_LE16_TO_CPU(uint16_t *p) +{ +#ifdef __LITTLE_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + return (u_p[1] | (u_p[0] << 8)); +#endif +} + +uint16_t DWC_BE16_TO_CPU(uint16_t *p) +{ +#ifdef __BIG_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + return (u_p[1] | (u_p[0] << 8)); +#endif +} + + +/* Registers */ + +uint32_t DWC_READ_REG32(void *io_ctx, uint32_t volatile *reg) +{ + dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx; + bus_size_t ior = (bus_size_t)reg; + + return bus_space_read_4(io->iot, io->ioh, ior); +} + +#if 0 +uint64_t DWC_READ_REG64(void *io_ctx, uint64_t volatile *reg) +{ + dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx; + bus_size_t ior = (bus_size_t)reg; + + return bus_space_read_8(io->iot, io->ioh, ior); +} +#endif + +void DWC_WRITE_REG32(void *io_ctx, uint32_t volatile *reg, uint32_t value) +{ + dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx; + bus_size_t ior = (bus_size_t)reg; + + bus_space_write_4(io->iot, io->ioh, ior, value); +} + +#if 0 +void DWC_WRITE_REG64(void *io_ctx, uint64_t volatile *reg, uint64_t value) +{ + dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx; + bus_size_t ior = (bus_size_t)reg; + + bus_space_write_8(io->iot, io->ioh, ior, value); +} +#endif + +void DWC_MODIFY_REG32(void *io_ctx, uint32_t volatile *reg, uint32_t clear_mask, + uint32_t set_mask) +{ + dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx; + bus_size_t ior = (bus_size_t)reg; + + bus_space_write_4(io->iot, io->ioh, ior, + (bus_space_read_4(io->iot, io->ioh, ior) & + ~clear_mask) | set_mask); +} + +#if 0 +void DWC_MODIFY_REG64(void *io_ctx, uint64_t volatile *reg, uint64_t clear_mask, + uint64_t set_mask) +{ + dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx; + bus_size_t ior = (bus_size_t)reg; + + bus_space_write_8(io->iot, io->ioh, ior, + (bus_space_read_8(io->iot, io->ioh, ior) & + ~clear_mask) | set_mask); +} +#endif + + +/* Locking */ + +dwc_spinlock_t *DWC_SPINLOCK_ALLOC(void) +{ + struct mtx *sl = DWC_ALLOC(sizeof(*sl)); + + if (!sl) { + DWC_ERROR("Cannot allocate memory for spinlock"); + return NULL; + } + + mtx_init(sl, "dw3spn", NULL, MTX_SPIN); + return (dwc_spinlock_t *)sl; +} + +void DWC_SPINLOCK_FREE(dwc_spinlock_t *lock) +{ + struct mtx *sl = (struct mtx *)lock; + + mtx_destroy(sl); + DWC_FREE(sl); +} + +void DWC_SPINLOCK(dwc_spinlock_t *lock) +{ + mtx_lock_spin((struct mtx *)lock); // ??? +} + +void DWC_SPINUNLOCK(dwc_spinlock_t *lock) +{ + mtx_unlock_spin((struct mtx *)lock); // ??? +} + +void DWC_SPINLOCK_IRQSAVE(dwc_spinlock_t *lock, dwc_irqflags_t *flags) +{ + mtx_lock_spin((struct mtx *)lock); +} + +void DWC_SPINUNLOCK_IRQRESTORE(dwc_spinlock_t *lock, dwc_irqflags_t flags) +{ + mtx_unlock_spin((struct mtx *)lock); +} + +dwc_mutex_t *DWC_MUTEX_ALLOC(void) +{ + struct mtx *m; + dwc_mutex_t *mutex = (dwc_mutex_t *)DWC_ALLOC(sizeof(struct mtx)); + + if (!mutex) { + DWC_ERROR("Cannot allocate memory for mutex"); + return NULL; + } + + m = (struct mtx *)mutex; + mtx_init(m, "dw3mtx", NULL, MTX_DEF); + return mutex; +} + +#if (defined(DWC_LINUX) && defined(CONFIG_DEBUG_MUTEXES)) +#else +void DWC_MUTEX_FREE(dwc_mutex_t *mutex) +{ + mtx_destroy((struct mtx *)mutex); + DWC_FREE(mutex); +} +#endif + +void DWC_MUTEX_LOCK(dwc_mutex_t *mutex) +{ + struct mtx *m = (struct mtx *)mutex; + + mtx_lock(m); +} + +int DWC_MUTEX_TRYLOCK(dwc_mutex_t *mutex) +{ + struct mtx *m = (struct mtx *)mutex; + + return mtx_trylock(m); +} + +void DWC_MUTEX_UNLOCK(dwc_mutex_t *mutex) +{ + struct mtx *m = (struct mtx *)mutex; + + mtx_unlock(m); +} + + +/* Timing */ + +void DWC_UDELAY(uint32_t usecs) +{ + DELAY(usecs); +} + +void DWC_MDELAY(uint32_t msecs) +{ + do { + DELAY(1000); + } while (--msecs); +} + +void DWC_MSLEEP(uint32_t msecs) +{ + struct timeval tv; + + tv.tv_sec = msecs / 1000; + tv.tv_usec = (msecs - tv.tv_sec * 1000) * 1000; + pause("dw3slp", tvtohz(&tv)); +} + +uint32_t DWC_TIME(void) +{ + struct timeval tv; + + microuptime(&tv); // or getmicrouptime? (less precise, but faster) + return tv.tv_sec * 1000 + tv.tv_usec / 1000; +} + + +/* Timers */ + +struct dwc_timer { + struct callout t; + char *name; + dwc_spinlock_t *lock; + dwc_timer_callback_t cb; + void *data; +}; + +dwc_timer_t *DWC_TIMER_ALLOC(char *name, dwc_timer_callback_t cb, void *data) +{ + dwc_timer_t *t = DWC_ALLOC(sizeof(*t)); + + if (!t) { + DWC_ERROR("Cannot allocate memory for timer"); + return NULL; + } + + callout_init(&t->t, 1); + + t->name = DWC_STRDUP(name); + if (!t->name) { + DWC_ERROR("Cannot allocate memory for timer->name"); + goto no_name; + } + + t->lock = DWC_SPINLOCK_ALLOC(); + if (!t->lock) { + DWC_ERROR("Cannot allocate memory for lock"); + goto no_lock; + } + + t->cb = cb; + t->data = data; + + return t; + + no_lock: + DWC_FREE(t->name); + no_name: + DWC_FREE(t); + + return NULL; +} + +void DWC_TIMER_FREE(dwc_timer_t *timer) +{ + callout_stop(&timer->t); + DWC_SPINLOCK_FREE(timer->lock); + DWC_FREE(timer->name); + DWC_FREE(timer); +} + +void DWC_TIMER_SCHEDULE(dwc_timer_t *timer, uint32_t time) +{ + struct timeval tv; + + tv.tv_sec = time / 1000; + tv.tv_usec = (time - tv.tv_sec * 1000) * 1000; + callout_reset(&timer->t, tvtohz(&tv), timer->cb, timer->data); +} + +void DWC_TIMER_CANCEL(dwc_timer_t *timer) +{ + callout_stop(&timer->t); +} + + +/* Wait Queues */ + +struct dwc_waitq { + struct mtx lock; + int abort; +}; + +dwc_waitq_t *DWC_WAITQ_ALLOC(void) +{ + dwc_waitq_t *wq = DWC_ALLOC(sizeof(*wq)); + + if (!wq) { + DWC_ERROR("Cannot allocate memory for waitqueue"); + return NULL; + } + + mtx_init(&wq->lock, "dw3wtq", NULL, MTX_DEF); + wq->abort = 0; + + return wq; +} + +void DWC_WAITQ_FREE(dwc_waitq_t *wq) +{ + mtx_destroy(&wq->lock); + DWC_FREE(wq); +} + +int32_t DWC_WAITQ_WAIT(dwc_waitq_t *wq, dwc_waitq_condition_t cond, void *data) +{ +// intrmask_t ipl; + int result = 0; + + mtx_lock(&wq->lock); +// ipl = splbio(); + + /* Skip the sleep if already aborted or triggered */ + if (!wq->abort && !cond(data)) { +// splx(ipl); + result = msleep(wq, &wq->lock, PCATCH, "dw3wat", 0); // infinite timeout +// ipl = splbio(); + } + + if (result == ERESTART) { // signaled - restart + result = -DWC_E_RESTART; + + } else if (result == EINTR) { // signaled - interrupt + result = -DWC_E_ABORT; + + } else if (wq->abort) { + result = -DWC_E_ABORT; + + } else { + result = 0; + } + + wq->abort = 0; +// splx(ipl); + mtx_unlock(&wq->lock); + return result; +} + +int32_t DWC_WAITQ_WAIT_TIMEOUT(dwc_waitq_t *wq, dwc_waitq_condition_t cond, + void *data, int32_t msecs) +{ + struct timeval tv, tv1, tv2; +// intrmask_t ipl; + int result = 0; + + tv.tv_sec = msecs / 1000; + tv.tv_usec = (msecs - tv.tv_sec * 1000) * 1000; + + mtx_lock(&wq->lock); +// ipl = splbio(); + + /* Skip the sleep if already aborted or triggered */ + if (!wq->abort && !cond(data)) { +// splx(ipl); + getmicrouptime(&tv1); + result = msleep(wq, &wq->lock, PCATCH, "dw3wto", tvtohz(&tv)); + getmicrouptime(&tv2); +// ipl = splbio(); + } + + if (result == 0) { // awoken + if (wq->abort) { + result = -DWC_E_ABORT; + } else { + tv2.tv_usec -= tv1.tv_usec; + if (tv2.tv_usec < 0) { + tv2.tv_usec += 1000000; + tv2.tv_sec--; + } + + tv2.tv_sec -= tv1.tv_sec; + result = tv2.tv_sec * 1000 + tv2.tv_usec / 1000; + result = msecs - result; + if (result <= 0) + result = 1; + } + } else if (result == ERESTART) { // signaled - restart + result = -DWC_E_RESTART; + + } else if (result == EINTR) { // signaled - interrupt + result = -DWC_E_ABORT; + + } else { // timed out + result = -DWC_E_TIMEOUT; + } + + wq->abort = 0; +// splx(ipl); + mtx_unlock(&wq->lock); + return result; +} + +void DWC_WAITQ_TRIGGER(dwc_waitq_t *wq) +{ + wakeup(wq); +} + +void DWC_WAITQ_ABORT(dwc_waitq_t *wq) +{ +// intrmask_t ipl; + + mtx_lock(&wq->lock); +// ipl = splbio(); + wq->abort = 1; + wakeup(wq); +// splx(ipl); + mtx_unlock(&wq->lock); +} + + +/* Threading */ + +struct dwc_thread { + struct proc *proc; + int abort; +}; + +dwc_thread_t *DWC_THREAD_RUN(dwc_thread_function_t func, char *name, void *data) +{ + int retval; + dwc_thread_t *thread = DWC_ALLOC(sizeof(*thread)); + + if (!thread) { + return NULL; + } + + thread->abort = 0; + retval = kthread_create((void (*)(void *))func, data, &thread->proc, + RFPROC | RFNOWAIT, 0, "%s", name); + if (retval) { + DWC_FREE(thread); + return NULL; + } + + return thread; +} + +int DWC_THREAD_STOP(dwc_thread_t *thread) +{ + int retval; + + thread->abort = 1; + retval = tsleep(&thread->abort, 0, "dw3stp", 60 * hz); + + if (retval == 0) { + /* DWC_THREAD_EXIT() will free the thread struct */ + return 0; + } + + /* NOTE: We leak the thread struct if thread doesn't die */ + + if (retval == EWOULDBLOCK) { + return -DWC_E_TIMEOUT; + } + + return -DWC_E_UNKNOWN; +} + +dwc_bool_t DWC_THREAD_SHOULD_STOP(dwc_thread_t *thread) +{ + return thread->abort; +} + +void DWC_THREAD_EXIT(dwc_thread_t *thread) +{ + wakeup(&thread->abort); + DWC_FREE(thread); + kthread_exit(0); +} + + +/* tasklets + - Runs in interrupt context (cannot sleep) + - Each tasklet runs on a single CPU [ How can we ensure this on FreeBSD? Does it matter? ] + - Different tasklets can be running simultaneously on different CPUs [ shouldn't matter ] + */ +struct dwc_tasklet { + struct task t; + dwc_tasklet_callback_t cb; + void *data; +}; + +static void tasklet_callback(void *data, int pending) // what to do with pending ??? +{ + dwc_tasklet_t *task = (dwc_tasklet_t *)data; + + task->cb(task->data); +} + +dwc_tasklet_t *DWC_TASK_ALLOC(char *name, dwc_tasklet_callback_t cb, void *data) +{ + dwc_tasklet_t *task = DWC_ALLOC(sizeof(*task)); + + if (task) { + task->cb = cb; + task->data = data; + TASK_INIT(&task->t, 0, tasklet_callback, task); + } else { + DWC_ERROR("Cannot allocate memory for tasklet"); + } + + return task; +} + +void DWC_TASK_FREE(dwc_tasklet_t *task) +{ + taskqueue_drain(taskqueue_fast, &task->t); // ??? + DWC_FREE(task); +} + +void DWC_TASK_SCHEDULE(dwc_tasklet_t *task) +{ + /* Uses predefined system queue */ + taskqueue_enqueue_fast(taskqueue_fast, &task->t); +} + + +/* workqueues + - Runs in process context (can sleep) + */ +typedef struct work_container { + dwc_work_callback_t cb; + void *data; + dwc_workq_t *wq; + char *name; + int hz; + +#ifdef DEBUG + DWC_CIRCLEQ_ENTRY(work_container) entry; +#endif + struct task task; +} work_container_t; + +#ifdef DEBUG +DWC_CIRCLEQ_HEAD(work_container_queue, work_container); +#endif + +struct dwc_workq { + struct taskqueue *taskq; + dwc_spinlock_t *lock; + dwc_waitq_t *waitq; + int pending; + +#ifdef DEBUG + struct work_container_queue entries; +#endif +}; + +static void do_work(void *data, int pending) // what to do with pending ??? +{ + work_container_t *container = (work_container_t *)data; + dwc_workq_t *wq = container->wq; + dwc_irqflags_t flags; + + if (container->hz) { + pause("dw3wrk", container->hz); + } + + container->cb(container->data); + DWC_DEBUG("Work done: %s, container=%p", container->name, container); + + DWC_SPINLOCK_IRQSAVE(wq->lock, &flags); + +#ifdef DEBUG + DWC_CIRCLEQ_REMOVE(&wq->entries, container, entry); +#endif + if (container->name) + DWC_FREE(container->name); + DWC_FREE(container); + wq->pending--; + DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags); + DWC_WAITQ_TRIGGER(wq->waitq); +} + +static int work_done(void *data) +{ + dwc_workq_t *workq = (dwc_workq_t *)data; + + return workq->pending == 0; +} + +int DWC_WORKQ_WAIT_WORK_DONE(dwc_workq_t *workq, int timeout) +{ + return DWC_WAITQ_WAIT_TIMEOUT(workq->waitq, work_done, workq, timeout); +} + +dwc_workq_t *DWC_WORKQ_ALLOC(char *name) +{ + dwc_workq_t *wq = DWC_ALLOC(sizeof(*wq)); + + if (!wq) { + DWC_ERROR("Cannot allocate memory for workqueue"); + return NULL; + } + + wq->taskq = taskqueue_create(name, M_NOWAIT, taskqueue_thread_enqueue, &wq->taskq); + if (!wq->taskq) { + DWC_ERROR("Cannot allocate memory for taskqueue"); + goto no_taskq; + } + + wq->pending = 0; + + wq->lock = DWC_SPINLOCK_ALLOC(); + if (!wq->lock) { + DWC_ERROR("Cannot allocate memory for spinlock"); + goto no_lock; + } + + wq->waitq = DWC_WAITQ_ALLOC(); + if (!wq->waitq) { + DWC_ERROR("Cannot allocate memory for waitqueue"); + goto no_waitq; + } + + taskqueue_start_threads(&wq->taskq, 1, PWAIT, "%s taskq", "dw3tsk"); + +#ifdef DEBUG + DWC_CIRCLEQ_INIT(&wq->entries); +#endif + return wq; + + no_waitq: + DWC_SPINLOCK_FREE(wq->lock); + no_lock: + taskqueue_free(wq->taskq); + no_taskq: + DWC_FREE(wq); + + return NULL; +} + +void DWC_WORKQ_FREE(dwc_workq_t *wq) +{ +#ifdef DEBUG + dwc_irqflags_t flags; + + DWC_SPINLOCK_IRQSAVE(wq->lock, &flags); + + if (wq->pending != 0) { + struct work_container *container; + + DWC_ERROR("Destroying work queue with pending work"); + + DWC_CIRCLEQ_FOREACH(container, &wq->entries, entry) { + DWC_ERROR("Work %s still pending", container->name); + } + } + + DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags); +#endif + DWC_WAITQ_FREE(wq->waitq); + DWC_SPINLOCK_FREE(wq->lock); + taskqueue_free(wq->taskq); + DWC_FREE(wq); +} + +void DWC_WORKQ_SCHEDULE(dwc_workq_t *wq, dwc_work_callback_t cb, void *data, + char *format, ...) +{ + dwc_irqflags_t flags; + work_container_t *container; + static char name[128]; + va_list args; + + va_start(args, format); + DWC_VSNPRINTF(name, 128, format, args); + va_end(args); + + DWC_SPINLOCK_IRQSAVE(wq->lock, &flags); + wq->pending++; + DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags); + DWC_WAITQ_TRIGGER(wq->waitq); + + container = DWC_ALLOC_ATOMIC(sizeof(*container)); + if (!container) { + DWC_ERROR("Cannot allocate memory for container"); + return; + } + + container->name = DWC_STRDUP(name); + if (!container->name) { + DWC_ERROR("Cannot allocate memory for container->name"); + DWC_FREE(container); + return; + } + + container->cb = cb; + container->data = data; + container->wq = wq; + container->hz = 0; + + DWC_DEBUG("Queueing work: %s, container=%p", container->name, container); + + TASK_INIT(&container->task, 0, do_work, container); + +#ifdef DEBUG + DWC_CIRCLEQ_INSERT_TAIL(&wq->entries, container, entry); +#endif + taskqueue_enqueue_fast(wq->taskq, &container->task); +} + +void DWC_WORKQ_SCHEDULE_DELAYED(dwc_workq_t *wq, dwc_work_callback_t cb, + void *data, uint32_t time, char *format, ...) +{ + dwc_irqflags_t flags; + work_container_t *container; + static char name[128]; + struct timeval tv; + va_list args; + + va_start(args, format); + DWC_VSNPRINTF(name, 128, format, args); + va_end(args); + + DWC_SPINLOCK_IRQSAVE(wq->lock, &flags); + wq->pending++; + DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags); + DWC_WAITQ_TRIGGER(wq->waitq); + + container = DWC_ALLOC_ATOMIC(sizeof(*container)); + if (!container) { + DWC_ERROR("Cannot allocate memory for container"); + return; + } + + container->name = DWC_STRDUP(name); + if (!container->name) { + DWC_ERROR("Cannot allocate memory for container->name"); + DWC_FREE(container); + return; + } + + container->cb = cb; + container->data = data; + container->wq = wq; + + tv.tv_sec = time / 1000; + tv.tv_usec = (time - tv.tv_sec * 1000) * 1000; + container->hz = tvtohz(&tv); + + DWC_DEBUG("Queueing work: %s, container=%p", container->name, container); + + TASK_INIT(&container->task, 0, do_work, container); + +#ifdef DEBUG + DWC_CIRCLEQ_INSERT_TAIL(&wq->entries, container, entry); +#endif + taskqueue_enqueue_fast(wq->taskq, &container->task); +} + +int DWC_WORKQ_PENDING(dwc_workq_t *wq) +{ + return wq->pending; +} diff --git a/drivers/usb/host/dwc_common_port/dwc_common_linux.c b/drivers/usb/host/dwc_common_port/dwc_common_linux.c new file mode 100644 index 0000000000000000000000000000000000000000..0d641e6da24beeb07109e23847d1d6e81dc7d4ea --- /dev/null +++ b/drivers/usb/host/dwc_common_port/dwc_common_linux.c @@ -0,0 +1,1418 @@ +#include +#include +#include +#include + +#ifdef DWC_CCLIB +# include "dwc_cc.h" +#endif + +#ifdef DWC_CRYPTOLIB +# include "dwc_modpow.h" +# include "dwc_dh.h" +# include "dwc_crypto.h" +#endif + +#ifdef DWC_NOTIFYLIB +# include "dwc_notifier.h" +#endif + +/* OS-Level Implementations */ + +/* This is the Linux kernel implementation of the DWC platform library. */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24) +# include +#else +# include +#endif + +#include +#include +#include +#include + +#include "dwc_os.h" +#include "dwc_list.h" + + +/* MISC */ + +void *DWC_MEMSET(void *dest, uint8_t byte, uint32_t size) +{ + return memset(dest, byte, size); +} + +void *DWC_MEMCPY(void *dest, void const *src, uint32_t size) +{ + return memcpy(dest, src, size); +} + +void *DWC_MEMMOVE(void *dest, void *src, uint32_t size) +{ + return memmove(dest, src, size); +} + +int DWC_MEMCMP(void *m1, void *m2, uint32_t size) +{ + return memcmp(m1, m2, size); +} + +int DWC_STRNCMP(void *s1, void *s2, uint32_t size) +{ + return strncmp(s1, s2, size); +} + +int DWC_STRCMP(void *s1, void *s2) +{ + return strcmp(s1, s2); +} + +int DWC_STRLEN(char const *str) +{ + return strlen(str); +} + +char *DWC_STRCPY(char *to, char const *from) +{ + return strcpy(to, from); +} + +char *DWC_STRDUP(char const *str) +{ + int len = DWC_STRLEN(str) + 1; + char *new = DWC_ALLOC_ATOMIC(len); + + if (!new) { + return NULL; + } + + DWC_MEMCPY(new, str, len); + return new; +} + +int DWC_ATOI(const char *str, int32_t *value) +{ + char *end = NULL; + + *value = simple_strtol(str, &end, 0); + if (*end == '\0') { + return 0; + } + + return -1; +} + +int DWC_ATOUI(const char *str, uint32_t *value) +{ + char *end = NULL; + + *value = simple_strtoul(str, &end, 0); + if (*end == '\0') { + return 0; + } + + return -1; +} + + +#ifdef DWC_UTFLIB +/* From usbstring.c */ + +int DWC_UTF8_TO_UTF16LE(uint8_t const *s, uint16_t *cp, unsigned len) +{ + int count = 0; + u8 c; + u16 uchar; + + /* this insists on correct encodings, though not minimal ones. + * BUT it currently rejects legit 4-byte UTF-8 code points, + * which need surrogate pairs. (Unicode 3.1 can use them.) + */ + while (len != 0 && (c = (u8) *s++) != 0) { + if (unlikely(c & 0x80)) { + // 2-byte sequence: + // 00000yyyyyxxxxxx = 110yyyyy 10xxxxxx + if ((c & 0xe0) == 0xc0) { + uchar = (c & 0x1f) << 6; + + c = (u8) *s++; + if ((c & 0xc0) != 0xc0) + goto fail; + c &= 0x3f; + uchar |= c; + + // 3-byte sequence (most CJKV characters): + // zzzzyyyyyyxxxxxx = 1110zzzz 10yyyyyy 10xxxxxx + } else if ((c & 0xf0) == 0xe0) { + uchar = (c & 0x0f) << 12; + + c = (u8) *s++; + if ((c & 0xc0) != 0xc0) + goto fail; + c &= 0x3f; + uchar |= c << 6; + + c = (u8) *s++; + if ((c & 0xc0) != 0xc0) + goto fail; + c &= 0x3f; + uchar |= c; + + /* no bogus surrogates */ + if (0xd800 <= uchar && uchar <= 0xdfff) + goto fail; + + // 4-byte sequence (surrogate pairs, currently rare): + // 11101110wwwwzzzzyy + 110111yyyyxxxxxx + // = 11110uuu 10uuzzzz 10yyyyyy 10xxxxxx + // (uuuuu = wwww + 1) + // FIXME accept the surrogate code points (only) + } else + goto fail; + } else + uchar = c; + put_unaligned (cpu_to_le16 (uchar), cp++); + count++; + len--; + } + return count; +fail: + return -1; +} +#endif /* DWC_UTFLIB */ + + +/* dwc_debug.h */ + +dwc_bool_t DWC_IN_IRQ(void) +{ + return in_irq(); +} + +dwc_bool_t DWC_IN_BH(void) +{ + return in_softirq(); +} + +void DWC_VPRINTF(char *format, va_list args) +{ + vprintk(format, args); +} + +int DWC_VSNPRINTF(char *str, int size, char *format, va_list args) +{ + return vsnprintf(str, size, format, args); +} + +void DWC_PRINTF(char *format, ...) +{ + va_list args; + + va_start(args, format); + DWC_VPRINTF(format, args); + va_end(args); +} + +int DWC_SPRINTF(char *buffer, char *format, ...) +{ + int retval; + va_list args; + + va_start(args, format); + retval = vsprintf(buffer, format, args); + va_end(args); + return retval; +} + +int DWC_SNPRINTF(char *buffer, int size, char *format, ...) +{ + int retval; + va_list args; + + va_start(args, format); + retval = vsnprintf(buffer, size, format, args); + va_end(args); + return retval; +} + +void __DWC_WARN(char *format, ...) +{ + va_list args; + + va_start(args, format); + DWC_PRINTF(KERN_WARNING); + DWC_VPRINTF(format, args); + va_end(args); +} + +void __DWC_ERROR(char *format, ...) +{ + va_list args; + + va_start(args, format); + DWC_PRINTF(KERN_ERR); + DWC_VPRINTF(format, args); + va_end(args); +} + +void DWC_EXCEPTION(char *format, ...) +{ + va_list args; + + va_start(args, format); + DWC_PRINTF(KERN_ERR); + DWC_VPRINTF(format, args); + va_end(args); + BUG_ON(1); +} + +#ifdef DEBUG +void __DWC_DEBUG(char *format, ...) +{ + va_list args; + + va_start(args, format); + DWC_PRINTF(KERN_DEBUG); + DWC_VPRINTF(format, args); + va_end(args); +} +#endif + + +/* dwc_mem.h */ + +#if 0 +dwc_pool_t *DWC_DMA_POOL_CREATE(uint32_t size, + uint32_t align, + uint32_t alloc) +{ + struct dma_pool *pool = dma_pool_create("Pool", NULL, + size, align, alloc); + return (dwc_pool_t *)pool; +} + +void DWC_DMA_POOL_DESTROY(dwc_pool_t *pool) +{ + dma_pool_destroy((struct dma_pool *)pool); +} + +void *DWC_DMA_POOL_ALLOC(dwc_pool_t *pool, uint64_t *dma_addr) +{ + return dma_pool_alloc((struct dma_pool *)pool, GFP_KERNEL, dma_addr); +} + +void *DWC_DMA_POOL_ZALLOC(dwc_pool_t *pool, uint64_t *dma_addr) +{ + void *vaddr = DWC_DMA_POOL_ALLOC(pool, dma_addr); + memset(..); +} + +void DWC_DMA_POOL_FREE(dwc_pool_t *pool, void *vaddr, void *daddr) +{ + dma_pool_free(pool, vaddr, daddr); +} +#endif + +void *__DWC_DMA_ALLOC(void *dma_ctx, uint32_t size, dwc_dma_t *dma_addr) +{ + return dma_zalloc_coherent(dma_ctx, size, dma_addr, GFP_KERNEL | GFP_DMA32); +} + +void *__DWC_DMA_ALLOC_ATOMIC(void *dma_ctx, uint32_t size, dwc_dma_t *dma_addr) +{ + return dma_zalloc_coherent(dma_ctx, size, dma_addr, GFP_ATOMIC); +} + +void __DWC_DMA_FREE(void *dma_ctx, uint32_t size, void *virt_addr, dwc_dma_t dma_addr) +{ + dma_free_coherent(dma_ctx, size, virt_addr, dma_addr); +} + +void *__DWC_ALLOC(void *mem_ctx, uint32_t size) +{ + return kzalloc(size, GFP_KERNEL); +} + +void *__DWC_ALLOC_ATOMIC(void *mem_ctx, uint32_t size) +{ + return kzalloc(size, GFP_ATOMIC); +} + +void __DWC_FREE(void *mem_ctx, void *addr) +{ + kfree(addr); +} + + +#ifdef DWC_CRYPTOLIB +/* dwc_crypto.h */ + +void DWC_RANDOM_BYTES(uint8_t *buffer, uint32_t length) +{ + get_random_bytes(buffer, length); +} + +int DWC_AES_CBC(uint8_t *message, uint32_t messagelen, uint8_t *key, uint32_t keylen, uint8_t iv[16], uint8_t *out) +{ + struct crypto_blkcipher *tfm; + struct blkcipher_desc desc; + struct scatterlist sgd; + struct scatterlist sgs; + + tfm = crypto_alloc_blkcipher("cbc(aes)", 0, CRYPTO_ALG_ASYNC); + if (tfm == NULL) { + printk("failed to load transform for aes CBC\n"); + return -1; + } + + crypto_blkcipher_setkey(tfm, key, keylen); + crypto_blkcipher_set_iv(tfm, iv, 16); + + sg_init_one(&sgd, out, messagelen); + sg_init_one(&sgs, message, messagelen); + + desc.tfm = tfm; + desc.flags = 0; + + if (crypto_blkcipher_encrypt(&desc, &sgd, &sgs, messagelen)) { + crypto_free_blkcipher(tfm); + DWC_ERROR("AES CBC encryption failed"); + return -1; + } + + crypto_free_blkcipher(tfm); + return 0; +} + +int DWC_SHA256(uint8_t *message, uint32_t len, uint8_t *out) +{ + struct crypto_hash *tfm; + struct hash_desc desc; + struct scatterlist sg; + + tfm = crypto_alloc_hash("sha256", 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(tfm)) { + DWC_ERROR("Failed to load transform for sha256: %ld\n", PTR_ERR(tfm)); + return 0; + } + desc.tfm = tfm; + desc.flags = 0; + + sg_init_one(&sg, message, len); + crypto_hash_digest(&desc, &sg, len, out); + crypto_free_hash(tfm); + + return 1; +} + +int DWC_HMAC_SHA256(uint8_t *message, uint32_t messagelen, + uint8_t *key, uint32_t keylen, uint8_t *out) +{ + struct crypto_hash *tfm; + struct hash_desc desc; + struct scatterlist sg; + + tfm = crypto_alloc_hash("hmac(sha256)", 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(tfm)) { + DWC_ERROR("Failed to load transform for hmac(sha256): %ld\n", PTR_ERR(tfm)); + return 0; + } + desc.tfm = tfm; + desc.flags = 0; + + sg_init_one(&sg, message, messagelen); + crypto_hash_setkey(tfm, key, keylen); + crypto_hash_digest(&desc, &sg, messagelen, out); + crypto_free_hash(tfm); + + return 1; +} +#endif /* DWC_CRYPTOLIB */ + + +/* Byte Ordering Conversions */ + +uint32_t DWC_CPU_TO_LE32(uint32_t *p) +{ +#ifdef __LITTLE_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + + return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24)); +#endif +} + +uint32_t DWC_CPU_TO_BE32(uint32_t *p) +{ +#ifdef __BIG_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + + return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24)); +#endif +} + +uint32_t DWC_LE32_TO_CPU(uint32_t *p) +{ +#ifdef __LITTLE_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + + return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24)); +#endif +} + +uint32_t DWC_BE32_TO_CPU(uint32_t *p) +{ +#ifdef __BIG_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + + return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24)); +#endif +} + +uint16_t DWC_CPU_TO_LE16(uint16_t *p) +{ +#ifdef __LITTLE_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + return (u_p[1] | (u_p[0] << 8)); +#endif +} + +uint16_t DWC_CPU_TO_BE16(uint16_t *p) +{ +#ifdef __BIG_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + return (u_p[1] | (u_p[0] << 8)); +#endif +} + +uint16_t DWC_LE16_TO_CPU(uint16_t *p) +{ +#ifdef __LITTLE_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + return (u_p[1] | (u_p[0] << 8)); +#endif +} + +uint16_t DWC_BE16_TO_CPU(uint16_t *p) +{ +#ifdef __BIG_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + return (u_p[1] | (u_p[0] << 8)); +#endif +} + + +/* Registers */ + +uint32_t DWC_READ_REG32(uint32_t volatile *reg) +{ + return readl(reg); +} + +#if 0 +uint64_t DWC_READ_REG64(uint64_t volatile *reg) +{ +} +#endif + +void DWC_WRITE_REG32(uint32_t volatile *reg, uint32_t value) +{ + writel(value, reg); +} + +#if 0 +void DWC_WRITE_REG64(uint64_t volatile *reg, uint64_t value) +{ +} +#endif + +void DWC_MODIFY_REG32(uint32_t volatile *reg, uint32_t clear_mask, uint32_t set_mask) +{ + writel((readl(reg) & ~clear_mask) | set_mask, reg); +} + +#if 0 +void DWC_MODIFY_REG64(uint64_t volatile *reg, uint64_t clear_mask, uint64_t set_mask) +{ +} +#endif + + +/* Locking */ + +dwc_spinlock_t *DWC_SPINLOCK_ALLOC(void) +{ + spinlock_t *sl = (spinlock_t *)1; + +#if defined(CONFIG_PREEMPT) || defined(CONFIG_SMP) + sl = DWC_ALLOC(sizeof(*sl)); + if (!sl) { + DWC_ERROR("Cannot allocate memory for spinlock\n"); + return NULL; + } + + spin_lock_init(sl); +#endif + return (dwc_spinlock_t *)sl; +} + +void DWC_SPINLOCK_FREE(dwc_spinlock_t *lock) +{ +#if defined(CONFIG_PREEMPT) || defined(CONFIG_SMP) + DWC_FREE(lock); +#endif +} + +void DWC_SPINLOCK(dwc_spinlock_t *lock) +{ +#if defined(CONFIG_PREEMPT) || defined(CONFIG_SMP) + spin_lock((spinlock_t *)lock); +#endif +} + +void DWC_SPINUNLOCK(dwc_spinlock_t *lock) +{ +#if defined(CONFIG_PREEMPT) || defined(CONFIG_SMP) + spin_unlock((spinlock_t *)lock); +#endif +} + +void DWC_SPINLOCK_IRQSAVE(dwc_spinlock_t *lock, dwc_irqflags_t *flags) +{ + dwc_irqflags_t f; + +#if defined(CONFIG_PREEMPT) || defined(CONFIG_SMP) + spin_lock_irqsave((spinlock_t *)lock, f); +#else + local_irq_save(f); +#endif + *flags = f; +} + +void DWC_SPINUNLOCK_IRQRESTORE(dwc_spinlock_t *lock, dwc_irqflags_t flags) +{ +#if defined(CONFIG_PREEMPT) || defined(CONFIG_SMP) + spin_unlock_irqrestore((spinlock_t *)lock, flags); +#else + local_irq_restore(flags); +#endif +} + +dwc_mutex_t *DWC_MUTEX_ALLOC(void) +{ + struct mutex *m; + dwc_mutex_t *mutex = (dwc_mutex_t *)DWC_ALLOC(sizeof(struct mutex)); + + if (!mutex) { + DWC_ERROR("Cannot allocate memory for mutex\n"); + return NULL; + } + + m = (struct mutex *)mutex; + mutex_init(m); + return mutex; +} + +#if (defined(DWC_LINUX) && defined(CONFIG_DEBUG_MUTEXES)) +#else +void DWC_MUTEX_FREE(dwc_mutex_t *mutex) +{ + mutex_destroy((struct mutex *)mutex); + DWC_FREE(mutex); +} +#endif + +void DWC_MUTEX_LOCK(dwc_mutex_t *mutex) +{ + struct mutex *m = (struct mutex *)mutex; + mutex_lock(m); +} + +int DWC_MUTEX_TRYLOCK(dwc_mutex_t *mutex) +{ + struct mutex *m = (struct mutex *)mutex; + return mutex_trylock(m); +} + +void DWC_MUTEX_UNLOCK(dwc_mutex_t *mutex) +{ + struct mutex *m = (struct mutex *)mutex; + mutex_unlock(m); +} + + +/* Timing */ + +void DWC_UDELAY(uint32_t usecs) +{ + udelay(usecs); +} + +void DWC_MDELAY(uint32_t msecs) +{ + mdelay(msecs); +} + +void DWC_MSLEEP(uint32_t msecs) +{ + msleep(msecs); +} + +uint32_t DWC_TIME(void) +{ + return jiffies_to_msecs(jiffies); +} + + +/* Timers */ + +struct dwc_timer { + struct timer_list *t; + char *name; + dwc_timer_callback_t cb; + void *data; + uint8_t scheduled; + dwc_spinlock_t *lock; +}; + +static void timer_callback(unsigned long data) +{ + dwc_timer_t *timer = (dwc_timer_t *)data; + dwc_irqflags_t flags; + + DWC_SPINLOCK_IRQSAVE(timer->lock, &flags); + timer->scheduled = 0; + DWC_SPINUNLOCK_IRQRESTORE(timer->lock, flags); + DWC_DEBUGC("Timer %s callback", timer->name); + timer->cb(timer->data); +} + +dwc_timer_t *DWC_TIMER_ALLOC(char *name, dwc_timer_callback_t cb, void *data) +{ + dwc_timer_t *t = DWC_ALLOC(sizeof(*t)); + + if (!t) { + DWC_ERROR("Cannot allocate memory for timer"); + return NULL; + } + + t->t = DWC_ALLOC(sizeof(*t->t)); + if (!t->t) { + DWC_ERROR("Cannot allocate memory for timer->t"); + goto no_timer; + } + + t->name = DWC_STRDUP(name); + if (!t->name) { + DWC_ERROR("Cannot allocate memory for timer->name"); + goto no_name; + } + +#if (defined(DWC_LINUX) && defined(CONFIG_DEBUG_SPINLOCK)) + DWC_SPINLOCK_ALLOC_LINUX_DEBUG(t->lock); +#else + t->lock = DWC_SPINLOCK_ALLOC(); +#endif + if (!t->lock) { + DWC_ERROR("Cannot allocate memory for lock"); + goto no_lock; + } + + t->scheduled = 0; + t->t->expires = jiffies; + setup_timer(t->t, timer_callback, (unsigned long)t); + + t->cb = cb; + t->data = data; + + return t; + + no_lock: + DWC_FREE(t->name); + no_name: + DWC_FREE(t->t); + no_timer: + DWC_FREE(t); + return NULL; +} + +void DWC_TIMER_FREE(dwc_timer_t *timer) +{ + dwc_irqflags_t flags; + + DWC_SPINLOCK_IRQSAVE(timer->lock, &flags); + + if (timer->scheduled) { + del_timer(timer->t); + timer->scheduled = 0; + } + + DWC_SPINUNLOCK_IRQRESTORE(timer->lock, flags); + DWC_SPINLOCK_FREE(timer->lock); + DWC_FREE(timer->t); + DWC_FREE(timer->name); + DWC_FREE(timer); +} + +void DWC_TIMER_SCHEDULE(dwc_timer_t *timer, uint32_t time) +{ + dwc_irqflags_t flags; + + DWC_SPINLOCK_IRQSAVE(timer->lock, &flags); + + if (!timer->scheduled) { + timer->scheduled = 1; + DWC_DEBUGC("Scheduling timer %s to expire in +%d msec", timer->name, time); + timer->t->expires = jiffies + msecs_to_jiffies(time); + add_timer(timer->t); + } else { + DWC_DEBUGC("Modifying timer %s to expire in +%d msec", timer->name, time); + mod_timer(timer->t, jiffies + msecs_to_jiffies(time)); + } + + DWC_SPINUNLOCK_IRQRESTORE(timer->lock, flags); +} + +void DWC_TIMER_CANCEL(dwc_timer_t *timer) +{ + del_timer(timer->t); +} + + +/* Wait Queues */ + +struct dwc_waitq { + wait_queue_head_t queue; + int abort; +}; + +dwc_waitq_t *DWC_WAITQ_ALLOC(void) +{ + dwc_waitq_t *wq = DWC_ALLOC(sizeof(*wq)); + + if (!wq) { + DWC_ERROR("Cannot allocate memory for waitqueue\n"); + return NULL; + } + + init_waitqueue_head(&wq->queue); + wq->abort = 0; + return wq; +} + +void DWC_WAITQ_FREE(dwc_waitq_t *wq) +{ + DWC_FREE(wq); +} + +int32_t DWC_WAITQ_WAIT(dwc_waitq_t *wq, dwc_waitq_condition_t cond, void *data) +{ + int result = wait_event_interruptible(wq->queue, + cond(data) || wq->abort); + if (result == -ERESTARTSYS) { + wq->abort = 0; + return -DWC_E_RESTART; + } + + if (wq->abort == 1) { + wq->abort = 0; + return -DWC_E_ABORT; + } + + wq->abort = 0; + + if (result == 0) { + return 0; + } + + return -DWC_E_UNKNOWN; +} + +int32_t DWC_WAITQ_WAIT_TIMEOUT(dwc_waitq_t *wq, dwc_waitq_condition_t cond, + void *data, int32_t msecs) +{ + int32_t tmsecs; + int result = wait_event_interruptible_timeout(wq->queue, + cond(data) || wq->abort, + msecs_to_jiffies(msecs)); + if (result == -ERESTARTSYS) { + wq->abort = 0; + return -DWC_E_RESTART; + } + + if (wq->abort == 1) { + wq->abort = 0; + return -DWC_E_ABORT; + } + + wq->abort = 0; + + if (result > 0) { + tmsecs = jiffies_to_msecs(result); + if (!tmsecs) { + return 1; + } + + return tmsecs; + } + + if (result == 0) { + return -DWC_E_TIMEOUT; + } + + return -DWC_E_UNKNOWN; +} + +void DWC_WAITQ_TRIGGER(dwc_waitq_t *wq) +{ + wq->abort = 0; + wake_up_interruptible(&wq->queue); +} + +void DWC_WAITQ_ABORT(dwc_waitq_t *wq) +{ + wq->abort = 1; + wake_up_interruptible(&wq->queue); +} + + +/* Threading */ + +dwc_thread_t *DWC_THREAD_RUN(dwc_thread_function_t func, char *name, void *data) +{ + struct task_struct *thread = kthread_run(func, data, name); + + if (thread == ERR_PTR(-ENOMEM)) { + return NULL; + } + + return (dwc_thread_t *)thread; +} + +int DWC_THREAD_STOP(dwc_thread_t *thread) +{ + return kthread_stop((struct task_struct *)thread); +} + +dwc_bool_t DWC_THREAD_SHOULD_STOP(void) +{ + return kthread_should_stop(); +} + + +/* tasklets + - run in interrupt context (cannot sleep) + - each tasklet runs on a single CPU + - different tasklets can be running simultaneously on different CPUs + */ +struct dwc_tasklet { + struct tasklet_struct t; + dwc_tasklet_callback_t cb; + void *data; +}; + +static void tasklet_callback(unsigned long data) +{ + dwc_tasklet_t *t = (dwc_tasklet_t *)data; + t->cb(t->data); +} + +dwc_tasklet_t *DWC_TASK_ALLOC(char *name, dwc_tasklet_callback_t cb, void *data) +{ + dwc_tasklet_t *t = DWC_ALLOC(sizeof(*t)); + + if (t) { + t->cb = cb; + t->data = data; + tasklet_init(&t->t, tasklet_callback, (unsigned long)t); + } else { + DWC_ERROR("Cannot allocate memory for tasklet\n"); + } + + return t; +} + +void DWC_TASK_FREE(dwc_tasklet_t *task) +{ + DWC_FREE(task); +} + +void DWC_TASK_SCHEDULE(dwc_tasklet_t *task) +{ + tasklet_schedule(&task->t); +} + +void DWC_TASK_HI_SCHEDULE(dwc_tasklet_t *task) +{ + tasklet_hi_schedule(&task->t); +} + + +/* workqueues + - run in process context (can sleep) + */ +typedef struct work_container { + dwc_work_callback_t cb; + void *data; + dwc_workq_t *wq; + char *name; + +#ifdef DEBUG + DWC_CIRCLEQ_ENTRY(work_container) entry; +#endif + struct delayed_work work; +} work_container_t; + +#ifdef DEBUG +DWC_CIRCLEQ_HEAD(work_container_queue, work_container); +#endif + +struct dwc_workq { + struct workqueue_struct *wq; + dwc_spinlock_t *lock; + dwc_waitq_t *waitq; + int pending; + +#ifdef DEBUG + struct work_container_queue entries; +#endif +}; + +static void do_work(struct work_struct *work) +{ + dwc_irqflags_t flags; + struct delayed_work *dw = container_of(work, struct delayed_work, work); + work_container_t *container = container_of(dw, struct work_container, work); + dwc_workq_t *wq = container->wq; + + container->cb(container->data); + +#ifdef DEBUG + DWC_CIRCLEQ_REMOVE(&wq->entries, container, entry); +#endif + DWC_DEBUGC("Work done: %s, container=%p", container->name, container); + if (container->name) { + DWC_FREE(container->name); + } + DWC_FREE(container); + + DWC_SPINLOCK_IRQSAVE(wq->lock, &flags); + wq->pending--; + DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags); + DWC_WAITQ_TRIGGER(wq->waitq); +} + +static int work_done(void *data) +{ + dwc_workq_t *workq = (dwc_workq_t *)data; + return workq->pending == 0; +} + +int DWC_WORKQ_WAIT_WORK_DONE(dwc_workq_t *workq, int timeout) +{ + return DWC_WAITQ_WAIT_TIMEOUT(workq->waitq, work_done, workq, timeout); +} + +dwc_workq_t *DWC_WORKQ_ALLOC(char *name) +{ + dwc_workq_t *wq = DWC_ALLOC(sizeof(*wq)); + + if (!wq) { + return NULL; + } + + wq->wq = create_singlethread_workqueue(name); + if (!wq->wq) { + goto no_wq; + } + + wq->pending = 0; + +#if (defined(DWC_LINUX) && defined(CONFIG_DEBUG_SPINLOCK)) + DWC_SPINLOCK_ALLOC_LINUX_DEBUG(wq->lock); +#else + wq->lock = DWC_SPINLOCK_ALLOC(); +#endif + if (!wq->lock) { + goto no_lock; + } + + wq->waitq = DWC_WAITQ_ALLOC(); + if (!wq->waitq) { + goto no_waitq; + } + +#ifdef DEBUG + DWC_CIRCLEQ_INIT(&wq->entries); +#endif + return wq; + + no_waitq: + DWC_SPINLOCK_FREE(wq->lock); + no_lock: + destroy_workqueue(wq->wq); + no_wq: + DWC_FREE(wq); + + return NULL; +} + +void DWC_WORKQ_FREE(dwc_workq_t *wq) +{ +#ifdef DEBUG + if (wq->pending != 0) { + struct work_container *wc; + DWC_ERROR("Destroying work queue with pending work"); + DWC_CIRCLEQ_FOREACH(wc, &wq->entries, entry) { + DWC_ERROR("Work %s still pending", wc->name); + } + } +#endif + destroy_workqueue(wq->wq); + DWC_SPINLOCK_FREE(wq->lock); + DWC_WAITQ_FREE(wq->waitq); + DWC_FREE(wq); +} + +void DWC_WORKQ_SCHEDULE(dwc_workq_t *wq, dwc_work_callback_t cb, void *data, + char *format, ...) +{ + dwc_irqflags_t flags; + work_container_t *container; + static char name[128]; + va_list args; + + va_start(args, format); + DWC_VSNPRINTF(name, 128, format, args); + va_end(args); + + DWC_SPINLOCK_IRQSAVE(wq->lock, &flags); + wq->pending++; + DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags); + DWC_WAITQ_TRIGGER(wq->waitq); + + container = DWC_ALLOC_ATOMIC(sizeof(*container)); + if (!container) { + DWC_ERROR("Cannot allocate memory for container\n"); + return; + } + + container->name = DWC_STRDUP(name); + if (!container->name) { + DWC_ERROR("Cannot allocate memory for container->name\n"); + DWC_FREE(container); + return; + } + + container->cb = cb; + container->data = data; + container->wq = wq; + DWC_DEBUGC("Queueing work: %s, container=%p", container->name, container); + INIT_WORK(&container->work.work, do_work); + +#ifdef DEBUG + DWC_CIRCLEQ_INSERT_TAIL(&wq->entries, container, entry); +#endif + queue_work(wq->wq, &container->work.work); +} + +void DWC_WORKQ_SCHEDULE_DELAYED(dwc_workq_t *wq, dwc_work_callback_t cb, + void *data, uint32_t time, char *format, ...) +{ + dwc_irqflags_t flags; + work_container_t *container; + static char name[128]; + va_list args; + + va_start(args, format); + DWC_VSNPRINTF(name, 128, format, args); + va_end(args); + + DWC_SPINLOCK_IRQSAVE(wq->lock, &flags); + wq->pending++; + DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags); + DWC_WAITQ_TRIGGER(wq->waitq); + + container = DWC_ALLOC_ATOMIC(sizeof(*container)); + if (!container) { + DWC_ERROR("Cannot allocate memory for container\n"); + return; + } + + container->name = DWC_STRDUP(name); + if (!container->name) { + DWC_ERROR("Cannot allocate memory for container->name\n"); + DWC_FREE(container); + return; + } + + container->cb = cb; + container->data = data; + container->wq = wq; + DWC_DEBUGC("Queueing work: %s, container=%p", container->name, container); + INIT_DELAYED_WORK(&container->work, do_work); + +#ifdef DEBUG + DWC_CIRCLEQ_INSERT_TAIL(&wq->entries, container, entry); +#endif + queue_delayed_work(wq->wq, &container->work, msecs_to_jiffies(time)); +} + +int DWC_WORKQ_PENDING(dwc_workq_t *wq) +{ + return wq->pending; +} + + +#ifdef DWC_LIBMODULE + +#ifdef DWC_CCLIB +/* CC */ +EXPORT_SYMBOL(dwc_cc_if_alloc); +EXPORT_SYMBOL(dwc_cc_if_free); +EXPORT_SYMBOL(dwc_cc_clear); +EXPORT_SYMBOL(dwc_cc_add); +EXPORT_SYMBOL(dwc_cc_remove); +EXPORT_SYMBOL(dwc_cc_change); +EXPORT_SYMBOL(dwc_cc_data_for_save); +EXPORT_SYMBOL(dwc_cc_restore_from_data); +EXPORT_SYMBOL(dwc_cc_match_chid); +EXPORT_SYMBOL(dwc_cc_match_cdid); +EXPORT_SYMBOL(dwc_cc_ck); +EXPORT_SYMBOL(dwc_cc_chid); +EXPORT_SYMBOL(dwc_cc_cdid); +EXPORT_SYMBOL(dwc_cc_name); +#endif /* DWC_CCLIB */ + +#ifdef DWC_CRYPTOLIB +# ifndef CONFIG_MACH_IPMATE +/* Modpow */ +EXPORT_SYMBOL(dwc_modpow); + +/* DH */ +EXPORT_SYMBOL(dwc_dh_modpow); +EXPORT_SYMBOL(dwc_dh_derive_keys); +EXPORT_SYMBOL(dwc_dh_pk); +# endif /* CONFIG_MACH_IPMATE */ + +/* Crypto */ +EXPORT_SYMBOL(dwc_wusb_aes_encrypt); +EXPORT_SYMBOL(dwc_wusb_cmf); +EXPORT_SYMBOL(dwc_wusb_prf); +EXPORT_SYMBOL(dwc_wusb_fill_ccm_nonce); +EXPORT_SYMBOL(dwc_wusb_gen_nonce); +EXPORT_SYMBOL(dwc_wusb_gen_key); +EXPORT_SYMBOL(dwc_wusb_gen_mic); +#endif /* DWC_CRYPTOLIB */ + +/* Notification */ +#ifdef DWC_NOTIFYLIB +EXPORT_SYMBOL(dwc_alloc_notification_manager); +EXPORT_SYMBOL(dwc_free_notification_manager); +EXPORT_SYMBOL(dwc_register_notifier); +EXPORT_SYMBOL(dwc_unregister_notifier); +EXPORT_SYMBOL(dwc_add_observer); +EXPORT_SYMBOL(dwc_remove_observer); +EXPORT_SYMBOL(dwc_notify); +#endif + +/* Memory Debugging Routines */ +#ifdef DWC_DEBUG_MEMORY +EXPORT_SYMBOL(dwc_alloc_debug); +EXPORT_SYMBOL(dwc_alloc_atomic_debug); +EXPORT_SYMBOL(dwc_free_debug); +EXPORT_SYMBOL(dwc_dma_alloc_debug); +EXPORT_SYMBOL(dwc_dma_free_debug); +#endif + +EXPORT_SYMBOL(DWC_MEMSET); +EXPORT_SYMBOL(DWC_MEMCPY); +EXPORT_SYMBOL(DWC_MEMMOVE); +EXPORT_SYMBOL(DWC_MEMCMP); +EXPORT_SYMBOL(DWC_STRNCMP); +EXPORT_SYMBOL(DWC_STRCMP); +EXPORT_SYMBOL(DWC_STRLEN); +EXPORT_SYMBOL(DWC_STRCPY); +EXPORT_SYMBOL(DWC_STRDUP); +EXPORT_SYMBOL(DWC_ATOI); +EXPORT_SYMBOL(DWC_ATOUI); + +#ifdef DWC_UTFLIB +EXPORT_SYMBOL(DWC_UTF8_TO_UTF16LE); +#endif /* DWC_UTFLIB */ + +EXPORT_SYMBOL(DWC_IN_IRQ); +EXPORT_SYMBOL(DWC_IN_BH); +EXPORT_SYMBOL(DWC_VPRINTF); +EXPORT_SYMBOL(DWC_VSNPRINTF); +EXPORT_SYMBOL(DWC_PRINTF); +EXPORT_SYMBOL(DWC_SPRINTF); +EXPORT_SYMBOL(DWC_SNPRINTF); +EXPORT_SYMBOL(__DWC_WARN); +EXPORT_SYMBOL(__DWC_ERROR); +EXPORT_SYMBOL(DWC_EXCEPTION); + +#ifdef DEBUG +EXPORT_SYMBOL(__DWC_DEBUG); +#endif + +EXPORT_SYMBOL(__DWC_DMA_ALLOC); +EXPORT_SYMBOL(__DWC_DMA_ALLOC_ATOMIC); +EXPORT_SYMBOL(__DWC_DMA_FREE); +EXPORT_SYMBOL(__DWC_ALLOC); +EXPORT_SYMBOL(__DWC_ALLOC_ATOMIC); +EXPORT_SYMBOL(__DWC_FREE); + +#ifdef DWC_CRYPTOLIB +EXPORT_SYMBOL(DWC_RANDOM_BYTES); +EXPORT_SYMBOL(DWC_AES_CBC); +EXPORT_SYMBOL(DWC_SHA256); +EXPORT_SYMBOL(DWC_HMAC_SHA256); +#endif + +EXPORT_SYMBOL(DWC_CPU_TO_LE32); +EXPORT_SYMBOL(DWC_CPU_TO_BE32); +EXPORT_SYMBOL(DWC_LE32_TO_CPU); +EXPORT_SYMBOL(DWC_BE32_TO_CPU); +EXPORT_SYMBOL(DWC_CPU_TO_LE16); +EXPORT_SYMBOL(DWC_CPU_TO_BE16); +EXPORT_SYMBOL(DWC_LE16_TO_CPU); +EXPORT_SYMBOL(DWC_BE16_TO_CPU); +EXPORT_SYMBOL(DWC_READ_REG32); +EXPORT_SYMBOL(DWC_WRITE_REG32); +EXPORT_SYMBOL(DWC_MODIFY_REG32); + +#if 0 +EXPORT_SYMBOL(DWC_READ_REG64); +EXPORT_SYMBOL(DWC_WRITE_REG64); +EXPORT_SYMBOL(DWC_MODIFY_REG64); +#endif + +EXPORT_SYMBOL(DWC_SPINLOCK_ALLOC); +EXPORT_SYMBOL(DWC_SPINLOCK_FREE); +EXPORT_SYMBOL(DWC_SPINLOCK); +EXPORT_SYMBOL(DWC_SPINUNLOCK); +EXPORT_SYMBOL(DWC_SPINLOCK_IRQSAVE); +EXPORT_SYMBOL(DWC_SPINUNLOCK_IRQRESTORE); +EXPORT_SYMBOL(DWC_MUTEX_ALLOC); + +#if (!defined(DWC_LINUX) || !defined(CONFIG_DEBUG_MUTEXES)) +EXPORT_SYMBOL(DWC_MUTEX_FREE); +#endif + +EXPORT_SYMBOL(DWC_MUTEX_LOCK); +EXPORT_SYMBOL(DWC_MUTEX_TRYLOCK); +EXPORT_SYMBOL(DWC_MUTEX_UNLOCK); +EXPORT_SYMBOL(DWC_UDELAY); +EXPORT_SYMBOL(DWC_MDELAY); +EXPORT_SYMBOL(DWC_MSLEEP); +EXPORT_SYMBOL(DWC_TIME); +EXPORT_SYMBOL(DWC_TIMER_ALLOC); +EXPORT_SYMBOL(DWC_TIMER_FREE); +EXPORT_SYMBOL(DWC_TIMER_SCHEDULE); +EXPORT_SYMBOL(DWC_TIMER_CANCEL); +EXPORT_SYMBOL(DWC_WAITQ_ALLOC); +EXPORT_SYMBOL(DWC_WAITQ_FREE); +EXPORT_SYMBOL(DWC_WAITQ_WAIT); +EXPORT_SYMBOL(DWC_WAITQ_WAIT_TIMEOUT); +EXPORT_SYMBOL(DWC_WAITQ_TRIGGER); +EXPORT_SYMBOL(DWC_WAITQ_ABORT); +EXPORT_SYMBOL(DWC_THREAD_RUN); +EXPORT_SYMBOL(DWC_THREAD_STOP); +EXPORT_SYMBOL(DWC_THREAD_SHOULD_STOP); +EXPORT_SYMBOL(DWC_TASK_ALLOC); +EXPORT_SYMBOL(DWC_TASK_FREE); +EXPORT_SYMBOL(DWC_TASK_SCHEDULE); +EXPORT_SYMBOL(DWC_WORKQ_WAIT_WORK_DONE); +EXPORT_SYMBOL(DWC_WORKQ_ALLOC); +EXPORT_SYMBOL(DWC_WORKQ_FREE); +EXPORT_SYMBOL(DWC_WORKQ_SCHEDULE); +EXPORT_SYMBOL(DWC_WORKQ_SCHEDULE_DELAYED); +EXPORT_SYMBOL(DWC_WORKQ_PENDING); + +static int dwc_common_port_init_module(void) +{ + int result = 0; + + printk(KERN_DEBUG "Module dwc_common_port init\n" ); + +#ifdef DWC_DEBUG_MEMORY + result = dwc_memory_debug_start(NULL); + if (result) { + printk(KERN_ERR + "dwc_memory_debug_start() failed with error %d\n", + result); + return result; + } +#endif + +#ifdef DWC_NOTIFYLIB + result = dwc_alloc_notification_manager(NULL, NULL); + if (result) { + printk(KERN_ERR + "dwc_alloc_notification_manager() failed with error %d\n", + result); + return result; + } +#endif + return result; +} + +static void dwc_common_port_exit_module(void) +{ + printk(KERN_DEBUG "Module dwc_common_port exit\n" ); + +#ifdef DWC_NOTIFYLIB + dwc_free_notification_manager(); +#endif + +#ifdef DWC_DEBUG_MEMORY + dwc_memory_debug_stop(); +#endif +} + +module_init(dwc_common_port_init_module); +module_exit(dwc_common_port_exit_module); + +MODULE_DESCRIPTION("DWC Common Library - Portable version"); +MODULE_AUTHOR("Synopsys Inc."); +MODULE_LICENSE ("GPL"); + +#endif /* DWC_LIBMODULE */ diff --git a/drivers/usb/host/dwc_common_port/dwc_common_nbsd.c b/drivers/usb/host/dwc_common_port/dwc_common_nbsd.c new file mode 100644 index 0000000000000000000000000000000000000000..49b07e1722645105e0433dceaec91add3412523f --- /dev/null +++ b/drivers/usb/host/dwc_common_port/dwc_common_nbsd.c @@ -0,0 +1,1275 @@ +#include "dwc_os.h" +#include "dwc_list.h" + +#ifdef DWC_CCLIB +# include "dwc_cc.h" +#endif + +#ifdef DWC_CRYPTOLIB +# include "dwc_modpow.h" +# include "dwc_dh.h" +# include "dwc_crypto.h" +#endif + +#ifdef DWC_NOTIFYLIB +# include "dwc_notifier.h" +#endif + +/* OS-Level Implementations */ + +/* This is the NetBSD 4.0.1 kernel implementation of the DWC platform library. */ + + +/* MISC */ + +void *DWC_MEMSET(void *dest, uint8_t byte, uint32_t size) +{ + return memset(dest, byte, size); +} + +void *DWC_MEMCPY(void *dest, void const *src, uint32_t size) +{ + return memcpy(dest, src, size); +} + +void *DWC_MEMMOVE(void *dest, void *src, uint32_t size) +{ + bcopy(src, dest, size); + return dest; +} + +int DWC_MEMCMP(void *m1, void *m2, uint32_t size) +{ + return memcmp(m1, m2, size); +} + +int DWC_STRNCMP(void *s1, void *s2, uint32_t size) +{ + return strncmp(s1, s2, size); +} + +int DWC_STRCMP(void *s1, void *s2) +{ + return strcmp(s1, s2); +} + +int DWC_STRLEN(char const *str) +{ + return strlen(str); +} + +char *DWC_STRCPY(char *to, char const *from) +{ + return strcpy(to, from); +} + +char *DWC_STRDUP(char const *str) +{ + int len = DWC_STRLEN(str) + 1; + char *new = DWC_ALLOC_ATOMIC(len); + + if (!new) { + return NULL; + } + + DWC_MEMCPY(new, str, len); + return new; +} + +int DWC_ATOI(char *str, int32_t *value) +{ + char *end = NULL; + + /* NetBSD doesn't have 'strtol' in the kernel, but 'strtoul' + * should be equivalent on 2's complement machines + */ + *value = strtoul(str, &end, 0); + if (*end == '\0') { + return 0; + } + + return -1; +} + +int DWC_ATOUI(char *str, uint32_t *value) +{ + char *end = NULL; + + *value = strtoul(str, &end, 0); + if (*end == '\0') { + return 0; + } + + return -1; +} + + +#ifdef DWC_UTFLIB +/* From usbstring.c */ + +int DWC_UTF8_TO_UTF16LE(uint8_t const *s, uint16_t *cp, unsigned len) +{ + int count = 0; + u8 c; + u16 uchar; + + /* this insists on correct encodings, though not minimal ones. + * BUT it currently rejects legit 4-byte UTF-8 code points, + * which need surrogate pairs. (Unicode 3.1 can use them.) + */ + while (len != 0 && (c = (u8) *s++) != 0) { + if (unlikely(c & 0x80)) { + // 2-byte sequence: + // 00000yyyyyxxxxxx = 110yyyyy 10xxxxxx + if ((c & 0xe0) == 0xc0) { + uchar = (c & 0x1f) << 6; + + c = (u8) *s++; + if ((c & 0xc0) != 0xc0) + goto fail; + c &= 0x3f; + uchar |= c; + + // 3-byte sequence (most CJKV characters): + // zzzzyyyyyyxxxxxx = 1110zzzz 10yyyyyy 10xxxxxx + } else if ((c & 0xf0) == 0xe0) { + uchar = (c & 0x0f) << 12; + + c = (u8) *s++; + if ((c & 0xc0) != 0xc0) + goto fail; + c &= 0x3f; + uchar |= c << 6; + + c = (u8) *s++; + if ((c & 0xc0) != 0xc0) + goto fail; + c &= 0x3f; + uchar |= c; + + /* no bogus surrogates */ + if (0xd800 <= uchar && uchar <= 0xdfff) + goto fail; + + // 4-byte sequence (surrogate pairs, currently rare): + // 11101110wwwwzzzzyy + 110111yyyyxxxxxx + // = 11110uuu 10uuzzzz 10yyyyyy 10xxxxxx + // (uuuuu = wwww + 1) + // FIXME accept the surrogate code points (only) + } else + goto fail; + } else + uchar = c; + put_unaligned (cpu_to_le16 (uchar), cp++); + count++; + len--; + } + return count; +fail: + return -1; +} + +#endif /* DWC_UTFLIB */ + + +/* dwc_debug.h */ + +dwc_bool_t DWC_IN_IRQ(void) +{ +// return in_irq(); + return 0; +} + +dwc_bool_t DWC_IN_BH(void) +{ +// return in_softirq(); + return 0; +} + +void DWC_VPRINTF(char *format, va_list args) +{ + vprintf(format, args); +} + +int DWC_VSNPRINTF(char *str, int size, char *format, va_list args) +{ + return vsnprintf(str, size, format, args); +} + +void DWC_PRINTF(char *format, ...) +{ + va_list args; + + va_start(args, format); + DWC_VPRINTF(format, args); + va_end(args); +} + +int DWC_SPRINTF(char *buffer, char *format, ...) +{ + int retval; + va_list args; + + va_start(args, format); + retval = vsprintf(buffer, format, args); + va_end(args); + return retval; +} + +int DWC_SNPRINTF(char *buffer, int size, char *format, ...) +{ + int retval; + va_list args; + + va_start(args, format); + retval = vsnprintf(buffer, size, format, args); + va_end(args); + return retval; +} + +void __DWC_WARN(char *format, ...) +{ + va_list args; + + va_start(args, format); + DWC_VPRINTF(format, args); + va_end(args); +} + +void __DWC_ERROR(char *format, ...) +{ + va_list args; + + va_start(args, format); + DWC_VPRINTF(format, args); + va_end(args); +} + +void DWC_EXCEPTION(char *format, ...) +{ + va_list args; + + va_start(args, format); + DWC_VPRINTF(format, args); + va_end(args); +// BUG_ON(1); ??? +} + +#ifdef DEBUG +void __DWC_DEBUG(char *format, ...) +{ + va_list args; + + va_start(args, format); + DWC_VPRINTF(format, args); + va_end(args); +} +#endif + + +/* dwc_mem.h */ + +#if 0 +dwc_pool_t *DWC_DMA_POOL_CREATE(uint32_t size, + uint32_t align, + uint32_t alloc) +{ + struct dma_pool *pool = dma_pool_create("Pool", NULL, + size, align, alloc); + return (dwc_pool_t *)pool; +} + +void DWC_DMA_POOL_DESTROY(dwc_pool_t *pool) +{ + dma_pool_destroy((struct dma_pool *)pool); +} + +void *DWC_DMA_POOL_ALLOC(dwc_pool_t *pool, uint64_t *dma_addr) +{ +// return dma_pool_alloc((struct dma_pool *)pool, GFP_KERNEL, dma_addr); + return dma_pool_alloc((struct dma_pool *)pool, M_WAITOK, dma_addr); +} + +void *DWC_DMA_POOL_ZALLOC(dwc_pool_t *pool, uint64_t *dma_addr) +{ + void *vaddr = DWC_DMA_POOL_ALLOC(pool, dma_addr); + memset(..); +} + +void DWC_DMA_POOL_FREE(dwc_pool_t *pool, void *vaddr, void *daddr) +{ + dma_pool_free(pool, vaddr, daddr); +} +#endif + +void *__DWC_DMA_ALLOC(void *dma_ctx, uint32_t size, dwc_dma_t *dma_addr) +{ + dwc_dmactx_t *dma = (dwc_dmactx_t *)dma_ctx; + int error; + + error = bus_dmamem_alloc(dma->dma_tag, size, 1, size, dma->segs, + sizeof(dma->segs) / sizeof(dma->segs[0]), + &dma->nsegs, BUS_DMA_NOWAIT); + if (error) { + printf("%s: bus_dmamem_alloc(%ju) failed: %d\n", __func__, + (uintmax_t)size, error); + goto fail_0; + } + + error = bus_dmamem_map(dma->dma_tag, dma->segs, dma->nsegs, size, + (caddr_t *)&dma->dma_vaddr, + BUS_DMA_NOWAIT | BUS_DMA_COHERENT); + if (error) { + printf("%s: bus_dmamem_map failed: %d\n", __func__, error); + goto fail_1; + } + + error = bus_dmamap_create(dma->dma_tag, size, 1, size, 0, + BUS_DMA_NOWAIT, &dma->dma_map); + if (error) { + printf("%s: bus_dmamap_create failed: %d\n", __func__, error); + goto fail_2; + } + + error = bus_dmamap_load(dma->dma_tag, dma->dma_map, dma->dma_vaddr, + size, NULL, BUS_DMA_NOWAIT); + if (error) { + printf("%s: bus_dmamap_load failed: %d\n", __func__, error); + goto fail_3; + } + + dma->dma_paddr = (bus_addr_t)dma->segs[0].ds_addr; + *dma_addr = dma->dma_paddr; + return dma->dma_vaddr; + +fail_3: + bus_dmamap_destroy(dma->dma_tag, dma->dma_map); +fail_2: + bus_dmamem_unmap(dma->dma_tag, dma->dma_vaddr, size); +fail_1: + bus_dmamem_free(dma->dma_tag, dma->segs, dma->nsegs); +fail_0: + dma->dma_map = NULL; + dma->dma_vaddr = NULL; + dma->nsegs = 0; + + return NULL; +} + +void __DWC_DMA_FREE(void *dma_ctx, uint32_t size, void *virt_addr, dwc_dma_t dma_addr) +{ + dwc_dmactx_t *dma = (dwc_dmactx_t *)dma_ctx; + + if (dma->dma_map != NULL) { + bus_dmamap_sync(dma->dma_tag, dma->dma_map, 0, size, + BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); + bus_dmamap_unload(dma->dma_tag, dma->dma_map); + bus_dmamap_destroy(dma->dma_tag, dma->dma_map); + bus_dmamem_unmap(dma->dma_tag, dma->dma_vaddr, size); + bus_dmamem_free(dma->dma_tag, dma->segs, dma->nsegs); + dma->dma_paddr = 0; + dma->dma_map = NULL; + dma->dma_vaddr = NULL; + dma->nsegs = 0; + } +} + +void *__DWC_ALLOC(void *mem_ctx, uint32_t size) +{ + return malloc(size, M_DEVBUF, M_WAITOK | M_ZERO); +} + +void *__DWC_ALLOC_ATOMIC(void *mem_ctx, uint32_t size) +{ + return malloc(size, M_DEVBUF, M_NOWAIT | M_ZERO); +} + +void __DWC_FREE(void *mem_ctx, void *addr) +{ + free(addr, M_DEVBUF); +} + + +#ifdef DWC_CRYPTOLIB +/* dwc_crypto.h */ + +void DWC_RANDOM_BYTES(uint8_t *buffer, uint32_t length) +{ + get_random_bytes(buffer, length); +} + +int DWC_AES_CBC(uint8_t *message, uint32_t messagelen, uint8_t *key, uint32_t keylen, uint8_t iv[16], uint8_t *out) +{ + struct crypto_blkcipher *tfm; + struct blkcipher_desc desc; + struct scatterlist sgd; + struct scatterlist sgs; + + tfm = crypto_alloc_blkcipher("cbc(aes)", 0, CRYPTO_ALG_ASYNC); + if (tfm == NULL) { + printk("failed to load transform for aes CBC\n"); + return -1; + } + + crypto_blkcipher_setkey(tfm, key, keylen); + crypto_blkcipher_set_iv(tfm, iv, 16); + + sg_init_one(&sgd, out, messagelen); + sg_init_one(&sgs, message, messagelen); + + desc.tfm = tfm; + desc.flags = 0; + + if (crypto_blkcipher_encrypt(&desc, &sgd, &sgs, messagelen)) { + crypto_free_blkcipher(tfm); + DWC_ERROR("AES CBC encryption failed"); + return -1; + } + + crypto_free_blkcipher(tfm); + return 0; +} + +int DWC_SHA256(uint8_t *message, uint32_t len, uint8_t *out) +{ + struct crypto_hash *tfm; + struct hash_desc desc; + struct scatterlist sg; + + tfm = crypto_alloc_hash("sha256", 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(tfm)) { + DWC_ERROR("Failed to load transform for sha256: %ld", PTR_ERR(tfm)); + return 0; + } + desc.tfm = tfm; + desc.flags = 0; + + sg_init_one(&sg, message, len); + crypto_hash_digest(&desc, &sg, len, out); + crypto_free_hash(tfm); + + return 1; +} + +int DWC_HMAC_SHA256(uint8_t *message, uint32_t messagelen, + uint8_t *key, uint32_t keylen, uint8_t *out) +{ + struct crypto_hash *tfm; + struct hash_desc desc; + struct scatterlist sg; + + tfm = crypto_alloc_hash("hmac(sha256)", 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(tfm)) { + DWC_ERROR("Failed to load transform for hmac(sha256): %ld", PTR_ERR(tfm)); + return 0; + } + desc.tfm = tfm; + desc.flags = 0; + + sg_init_one(&sg, message, messagelen); + crypto_hash_setkey(tfm, key, keylen); + crypto_hash_digest(&desc, &sg, messagelen, out); + crypto_free_hash(tfm); + + return 1; +} + +#endif /* DWC_CRYPTOLIB */ + + +/* Byte Ordering Conversions */ + +uint32_t DWC_CPU_TO_LE32(uint32_t *p) +{ +#ifdef __LITTLE_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + + return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24)); +#endif +} + +uint32_t DWC_CPU_TO_BE32(uint32_t *p) +{ +#ifdef __BIG_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + + return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24)); +#endif +} + +uint32_t DWC_LE32_TO_CPU(uint32_t *p) +{ +#ifdef __LITTLE_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + + return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24)); +#endif +} + +uint32_t DWC_BE32_TO_CPU(uint32_t *p) +{ +#ifdef __BIG_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + + return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24)); +#endif +} + +uint16_t DWC_CPU_TO_LE16(uint16_t *p) +{ +#ifdef __LITTLE_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + return (u_p[1] | (u_p[0] << 8)); +#endif +} + +uint16_t DWC_CPU_TO_BE16(uint16_t *p) +{ +#ifdef __BIG_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + return (u_p[1] | (u_p[0] << 8)); +#endif +} + +uint16_t DWC_LE16_TO_CPU(uint16_t *p) +{ +#ifdef __LITTLE_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + return (u_p[1] | (u_p[0] << 8)); +#endif +} + +uint16_t DWC_BE16_TO_CPU(uint16_t *p) +{ +#ifdef __BIG_ENDIAN + return *p; +#else + uint8_t *u_p = (uint8_t *)p; + return (u_p[1] | (u_p[0] << 8)); +#endif +} + + +/* Registers */ + +uint32_t DWC_READ_REG32(void *io_ctx, uint32_t volatile *reg) +{ + dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx; + bus_size_t ior = (bus_size_t)reg; + + return bus_space_read_4(io->iot, io->ioh, ior); +} + +#if 0 +uint64_t DWC_READ_REG64(void *io_ctx, uint64_t volatile *reg) +{ + dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx; + bus_size_t ior = (bus_size_t)reg; + + return bus_space_read_8(io->iot, io->ioh, ior); +} +#endif + +void DWC_WRITE_REG32(void *io_ctx, uint32_t volatile *reg, uint32_t value) +{ + dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx; + bus_size_t ior = (bus_size_t)reg; + + bus_space_write_4(io->iot, io->ioh, ior, value); +} + +#if 0 +void DWC_WRITE_REG64(void *io_ctx, uint64_t volatile *reg, uint64_t value) +{ + dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx; + bus_size_t ior = (bus_size_t)reg; + + bus_space_write_8(io->iot, io->ioh, ior, value); +} +#endif + +void DWC_MODIFY_REG32(void *io_ctx, uint32_t volatile *reg, uint32_t clear_mask, + uint32_t set_mask) +{ + dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx; + bus_size_t ior = (bus_size_t)reg; + + bus_space_write_4(io->iot, io->ioh, ior, + (bus_space_read_4(io->iot, io->ioh, ior) & + ~clear_mask) | set_mask); +} + +#if 0 +void DWC_MODIFY_REG64(void *io_ctx, uint64_t volatile *reg, uint64_t clear_mask, + uint64_t set_mask) +{ + dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx; + bus_size_t ior = (bus_size_t)reg; + + bus_space_write_8(io->iot, io->ioh, ior, + (bus_space_read_8(io->iot, io->ioh, ior) & + ~clear_mask) | set_mask); +} +#endif + + +/* Locking */ + +dwc_spinlock_t *DWC_SPINLOCK_ALLOC(void) +{ + struct simplelock *sl = DWC_ALLOC(sizeof(*sl)); + + if (!sl) { + DWC_ERROR("Cannot allocate memory for spinlock"); + return NULL; + } + + simple_lock_init(sl); + return (dwc_spinlock_t *)sl; +} + +void DWC_SPINLOCK_FREE(dwc_spinlock_t *lock) +{ + struct simplelock *sl = (struct simplelock *)lock; + + DWC_FREE(sl); +} + +void DWC_SPINLOCK(dwc_spinlock_t *lock) +{ + simple_lock((struct simplelock *)lock); +} + +void DWC_SPINUNLOCK(dwc_spinlock_t *lock) +{ + simple_unlock((struct simplelock *)lock); +} + +void DWC_SPINLOCK_IRQSAVE(dwc_spinlock_t *lock, dwc_irqflags_t *flags) +{ + simple_lock((struct simplelock *)lock); + *flags = splbio(); +} + +void DWC_SPINUNLOCK_IRQRESTORE(dwc_spinlock_t *lock, dwc_irqflags_t flags) +{ + splx(flags); + simple_unlock((struct simplelock *)lock); +} + +dwc_mutex_t *DWC_MUTEX_ALLOC(void) +{ + dwc_mutex_t *mutex = DWC_ALLOC(sizeof(struct lock)); + + if (!mutex) { + DWC_ERROR("Cannot allocate memory for mutex"); + return NULL; + } + + lockinit((struct lock *)mutex, 0, "dw3mtx", 0, 0); + return mutex; +} + +#if (defined(DWC_LINUX) && defined(CONFIG_DEBUG_MUTEXES)) +#else +void DWC_MUTEX_FREE(dwc_mutex_t *mutex) +{ + DWC_FREE(mutex); +} +#endif + +void DWC_MUTEX_LOCK(dwc_mutex_t *mutex) +{ + lockmgr((struct lock *)mutex, LK_EXCLUSIVE, NULL); +} + +int DWC_MUTEX_TRYLOCK(dwc_mutex_t *mutex) +{ + int status; + + status = lockmgr((struct lock *)mutex, LK_EXCLUSIVE | LK_NOWAIT, NULL); + return status == 0; +} + +void DWC_MUTEX_UNLOCK(dwc_mutex_t *mutex) +{ + lockmgr((struct lock *)mutex, LK_RELEASE, NULL); +} + + +/* Timing */ + +void DWC_UDELAY(uint32_t usecs) +{ + DELAY(usecs); +} + +void DWC_MDELAY(uint32_t msecs) +{ + do { + DELAY(1000); + } while (--msecs); +} + +void DWC_MSLEEP(uint32_t msecs) +{ + struct timeval tv; + + tv.tv_sec = msecs / 1000; + tv.tv_usec = (msecs - tv.tv_sec * 1000) * 1000; + tsleep(&tv, 0, "dw3slp", tvtohz(&tv)); +} + +uint32_t DWC_TIME(void) +{ + struct timeval tv; + + microuptime(&tv); // or getmicrouptime? (less precise, but faster) + return tv.tv_sec * 1000 + tv.tv_usec / 1000; +} + + +/* Timers */ + +struct dwc_timer { + struct callout t; + char *name; + dwc_spinlock_t *lock; + dwc_timer_callback_t cb; + void *data; +}; + +dwc_timer_t *DWC_TIMER_ALLOC(char *name, dwc_timer_callback_t cb, void *data) +{ + dwc_timer_t *t = DWC_ALLOC(sizeof(*t)); + + if (!t) { + DWC_ERROR("Cannot allocate memory for timer"); + return NULL; + } + + callout_init(&t->t); + + t->name = DWC_STRDUP(name); + if (!t->name) { + DWC_ERROR("Cannot allocate memory for timer->name"); + goto no_name; + } + + t->lock = DWC_SPINLOCK_ALLOC(); + if (!t->lock) { + DWC_ERROR("Cannot allocate memory for timer->lock"); + goto no_lock; + } + + t->cb = cb; + t->data = data; + + return t; + + no_lock: + DWC_FREE(t->name); + no_name: + DWC_FREE(t); + + return NULL; +} + +void DWC_TIMER_FREE(dwc_timer_t *timer) +{ + callout_stop(&timer->t); + DWC_SPINLOCK_FREE(timer->lock); + DWC_FREE(timer->name); + DWC_FREE(timer); +} + +void DWC_TIMER_SCHEDULE(dwc_timer_t *timer, uint32_t time) +{ + struct timeval tv; + + tv.tv_sec = time / 1000; + tv.tv_usec = (time - tv.tv_sec * 1000) * 1000; + callout_reset(&timer->t, tvtohz(&tv), timer->cb, timer->data); +} + +void DWC_TIMER_CANCEL(dwc_timer_t *timer) +{ + callout_stop(&timer->t); +} + + +/* Wait Queues */ + +struct dwc_waitq { + struct simplelock lock; + int abort; +}; + +dwc_waitq_t *DWC_WAITQ_ALLOC(void) +{ + dwc_waitq_t *wq = DWC_ALLOC(sizeof(*wq)); + + if (!wq) { + DWC_ERROR("Cannot allocate memory for waitqueue"); + return NULL; + } + + simple_lock_init(&wq->lock); + wq->abort = 0; + + return wq; +} + +void DWC_WAITQ_FREE(dwc_waitq_t *wq) +{ + DWC_FREE(wq); +} + +int32_t DWC_WAITQ_WAIT(dwc_waitq_t *wq, dwc_waitq_condition_t cond, void *data) +{ + int ipl; + int result = 0; + + simple_lock(&wq->lock); + ipl = splbio(); + + /* Skip the sleep if already aborted or triggered */ + if (!wq->abort && !cond(data)) { + splx(ipl); + result = ltsleep(wq, PCATCH, "dw3wat", 0, &wq->lock); // infinite timeout + ipl = splbio(); + } + + if (result == 0) { // awoken + if (wq->abort) { + wq->abort = 0; + result = -DWC_E_ABORT; + } else { + result = 0; + } + + splx(ipl); + simple_unlock(&wq->lock); + } else { + wq->abort = 0; + splx(ipl); + simple_unlock(&wq->lock); + + if (result == ERESTART) { // signaled - restart + result = -DWC_E_RESTART; + } else { // signaled - must be EINTR + result = -DWC_E_ABORT; + } + } + + return result; +} + +int32_t DWC_WAITQ_WAIT_TIMEOUT(dwc_waitq_t *wq, dwc_waitq_condition_t cond, + void *data, int32_t msecs) +{ + struct timeval tv, tv1, tv2; + int ipl; + int result = 0; + + tv.tv_sec = msecs / 1000; + tv.tv_usec = (msecs - tv.tv_sec * 1000) * 1000; + + simple_lock(&wq->lock); + ipl = splbio(); + + /* Skip the sleep if already aborted or triggered */ + if (!wq->abort && !cond(data)) { + splx(ipl); + getmicrouptime(&tv1); + result = ltsleep(wq, PCATCH, "dw3wto", tvtohz(&tv), &wq->lock); + getmicrouptime(&tv2); + ipl = splbio(); + } + + if (result == 0) { // awoken + if (wq->abort) { + wq->abort = 0; + splx(ipl); + simple_unlock(&wq->lock); + result = -DWC_E_ABORT; + } else { + splx(ipl); + simple_unlock(&wq->lock); + + tv2.tv_usec -= tv1.tv_usec; + if (tv2.tv_usec < 0) { + tv2.tv_usec += 1000000; + tv2.tv_sec--; + } + + tv2.tv_sec -= tv1.tv_sec; + result = tv2.tv_sec * 1000 + tv2.tv_usec / 1000; + result = msecs - result; + if (result <= 0) + result = 1; + } + } else { + wq->abort = 0; + splx(ipl); + simple_unlock(&wq->lock); + + if (result == ERESTART) { // signaled - restart + result = -DWC_E_RESTART; + + } else if (result == EINTR) { // signaled - interrupt + result = -DWC_E_ABORT; + + } else { // timed out + result = -DWC_E_TIMEOUT; + } + } + + return result; +} + +void DWC_WAITQ_TRIGGER(dwc_waitq_t *wq) +{ + wakeup(wq); +} + +void DWC_WAITQ_ABORT(dwc_waitq_t *wq) +{ + int ipl; + + simple_lock(&wq->lock); + ipl = splbio(); + wq->abort = 1; + wakeup(wq); + splx(ipl); + simple_unlock(&wq->lock); +} + + +/* Threading */ + +struct dwc_thread { + struct proc *proc; + int abort; +}; + +dwc_thread_t *DWC_THREAD_RUN(dwc_thread_function_t func, char *name, void *data) +{ + int retval; + dwc_thread_t *thread = DWC_ALLOC(sizeof(*thread)); + + if (!thread) { + return NULL; + } + + thread->abort = 0; + retval = kthread_create1((void (*)(void *))func, data, &thread->proc, + "%s", name); + if (retval) { + DWC_FREE(thread); + return NULL; + } + + return thread; +} + +int DWC_THREAD_STOP(dwc_thread_t *thread) +{ + int retval; + + thread->abort = 1; + retval = tsleep(&thread->abort, 0, "dw3stp", 60 * hz); + + if (retval == 0) { + /* DWC_THREAD_EXIT() will free the thread struct */ + return 0; + } + + /* NOTE: We leak the thread struct if thread doesn't die */ + + if (retval == EWOULDBLOCK) { + return -DWC_E_TIMEOUT; + } + + return -DWC_E_UNKNOWN; +} + +dwc_bool_t DWC_THREAD_SHOULD_STOP(dwc_thread_t *thread) +{ + return thread->abort; +} + +void DWC_THREAD_EXIT(dwc_thread_t *thread) +{ + wakeup(&thread->abort); + DWC_FREE(thread); + kthread_exit(0); +} + +/* tasklets + - Runs in interrupt context (cannot sleep) + - Each tasklet runs on a single CPU + - Different tasklets can be running simultaneously on different CPUs + [ On NetBSD there is no corresponding mechanism, drivers don't have bottom- + halves. So we just call the callback directly from DWC_TASK_SCHEDULE() ] + */ +struct dwc_tasklet { + dwc_tasklet_callback_t cb; + void *data; +}; + +static void tasklet_callback(void *data) +{ + dwc_tasklet_t *task = (dwc_tasklet_t *)data; + + task->cb(task->data); +} + +dwc_tasklet_t *DWC_TASK_ALLOC(char *name, dwc_tasklet_callback_t cb, void *data) +{ + dwc_tasklet_t *task = DWC_ALLOC(sizeof(*task)); + + if (task) { + task->cb = cb; + task->data = data; + } else { + DWC_ERROR("Cannot allocate memory for tasklet"); + } + + return task; +} + +void DWC_TASK_FREE(dwc_tasklet_t *task) +{ + DWC_FREE(task); +} + +void DWC_TASK_SCHEDULE(dwc_tasklet_t *task) +{ + tasklet_callback(task); +} + + +/* workqueues + - Runs in process context (can sleep) + */ +typedef struct work_container { + dwc_work_callback_t cb; + void *data; + dwc_workq_t *wq; + char *name; + int hz; + struct work task; +} work_container_t; + +struct dwc_workq { + struct workqueue *taskq; + dwc_spinlock_t *lock; + dwc_waitq_t *waitq; + int pending; + struct work_container *container; +}; + +static void do_work(struct work *task, void *data) +{ + dwc_workq_t *wq = (dwc_workq_t *)data; + work_container_t *container = wq->container; + dwc_irqflags_t flags; + + if (container->hz) { + tsleep(container, 0, "dw3wrk", container->hz); + } + + container->cb(container->data); + DWC_DEBUG("Work done: %s, container=%p", container->name, container); + + DWC_SPINLOCK_IRQSAVE(wq->lock, &flags); + if (container->name) + DWC_FREE(container->name); + DWC_FREE(container); + wq->pending--; + DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags); + DWC_WAITQ_TRIGGER(wq->waitq); +} + +static int work_done(void *data) +{ + dwc_workq_t *workq = (dwc_workq_t *)data; + + return workq->pending == 0; +} + +int DWC_WORKQ_WAIT_WORK_DONE(dwc_workq_t *workq, int timeout) +{ + return DWC_WAITQ_WAIT_TIMEOUT(workq->waitq, work_done, workq, timeout); +} + +dwc_workq_t *DWC_WORKQ_ALLOC(char *name) +{ + int result; + dwc_workq_t *wq = DWC_ALLOC(sizeof(*wq)); + + if (!wq) { + DWC_ERROR("Cannot allocate memory for workqueue"); + return NULL; + } + + result = workqueue_create(&wq->taskq, name, do_work, wq, 0 /*PWAIT*/, + IPL_BIO, 0); + if (result) { + DWC_ERROR("Cannot create workqueue"); + goto no_taskq; + } + + wq->pending = 0; + + wq->lock = DWC_SPINLOCK_ALLOC(); + if (!wq->lock) { + DWC_ERROR("Cannot allocate memory for spinlock"); + goto no_lock; + } + + wq->waitq = DWC_WAITQ_ALLOC(); + if (!wq->waitq) { + DWC_ERROR("Cannot allocate memory for waitqueue"); + goto no_waitq; + } + + return wq; + + no_waitq: + DWC_SPINLOCK_FREE(wq->lock); + no_lock: + workqueue_destroy(wq->taskq); + no_taskq: + DWC_FREE(wq); + + return NULL; +} + +void DWC_WORKQ_FREE(dwc_workq_t *wq) +{ +#ifdef DEBUG + dwc_irqflags_t flags; + + DWC_SPINLOCK_IRQSAVE(wq->lock, &flags); + + if (wq->pending != 0) { + struct work_container *container = wq->container; + + DWC_ERROR("Destroying work queue with pending work"); + + if (container && container->name) { + DWC_ERROR("Work %s still pending", container->name); + } + } + + DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags); +#endif + DWC_WAITQ_FREE(wq->waitq); + DWC_SPINLOCK_FREE(wq->lock); + workqueue_destroy(wq->taskq); + DWC_FREE(wq); +} + +void DWC_WORKQ_SCHEDULE(dwc_workq_t *wq, dwc_work_callback_t cb, void *data, + char *format, ...) +{ + dwc_irqflags_t flags; + work_container_t *container; + static char name[128]; + va_list args; + + va_start(args, format); + DWC_VSNPRINTF(name, 128, format, args); + va_end(args); + + DWC_SPINLOCK_IRQSAVE(wq->lock, &flags); + wq->pending++; + DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags); + DWC_WAITQ_TRIGGER(wq->waitq); + + container = DWC_ALLOC_ATOMIC(sizeof(*container)); + if (!container) { + DWC_ERROR("Cannot allocate memory for container"); + return; + } + + container->name = DWC_STRDUP(name); + if (!container->name) { + DWC_ERROR("Cannot allocate memory for container->name"); + DWC_FREE(container); + return; + } + + container->cb = cb; + container->data = data; + container->wq = wq; + container->hz = 0; + wq->container = container; + + DWC_DEBUG("Queueing work: %s, container=%p", container->name, container); + workqueue_enqueue(wq->taskq, &container->task); +} + +void DWC_WORKQ_SCHEDULE_DELAYED(dwc_workq_t *wq, dwc_work_callback_t cb, + void *data, uint32_t time, char *format, ...) +{ + dwc_irqflags_t flags; + work_container_t *container; + static char name[128]; + struct timeval tv; + va_list args; + + va_start(args, format); + DWC_VSNPRINTF(name, 128, format, args); + va_end(args); + + DWC_SPINLOCK_IRQSAVE(wq->lock, &flags); + wq->pending++; + DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags); + DWC_WAITQ_TRIGGER(wq->waitq); + + container = DWC_ALLOC_ATOMIC(sizeof(*container)); + if (!container) { + DWC_ERROR("Cannot allocate memory for container"); + return; + } + + container->name = DWC_STRDUP(name); + if (!container->name) { + DWC_ERROR("Cannot allocate memory for container->name"); + DWC_FREE(container); + return; + } + + container->cb = cb; + container->data = data; + container->wq = wq; + tv.tv_sec = time / 1000; + tv.tv_usec = (time - tv.tv_sec * 1000) * 1000; + container->hz = tvtohz(&tv); + wq->container = container; + + DWC_DEBUG("Queueing work: %s, container=%p", container->name, container); + workqueue_enqueue(wq->taskq, &container->task); +} + +int DWC_WORKQ_PENDING(dwc_workq_t *wq) +{ + return wq->pending; +} diff --git a/drivers/usb/host/dwc_common_port/dwc_crypto.c b/drivers/usb/host/dwc_common_port/dwc_crypto.c new file mode 100644 index 0000000000000000000000000000000000000000..3b0353296148f6297b5bdc2f45e9fe92a17c680d --- /dev/null +++ b/drivers/usb/host/dwc_common_port/dwc_crypto.c @@ -0,0 +1,308 @@ +/* ========================================================================= + * $File: //dwh/usb_iip/dev/software/dwc_common_port_2/dwc_crypto.c $ + * $Revision: #5 $ + * $Date: 2010/09/28 $ + * $Change: 1596182 $ + * + * Synopsys Portability Library Software and documentation + * (hereinafter, "Software") is an Unsupported proprietary work of + * Synopsys, Inc. unless otherwise expressly agreed to in writing + * between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product + * under any End User Software License Agreement or Agreement for + * Licensed Product with Synopsys or any supplement thereto. You are + * permitted to use and redistribute this Software in source and binary + * forms, with or without modification, provided that redistributions + * of source code must retain this notice. You may not view, use, + * disclose, copy or distribute this file or any information contained + * herein except pursuant to this license grant from Synopsys. If you + * do not agree with this notice, including the disclaimer below, then + * you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" + * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL + * SYNOPSYS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE + * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================= */ + +/** @file + * This file contains the WUSB cryptographic routines. + */ + +#ifdef DWC_CRYPTOLIB + +#include "dwc_crypto.h" +#include "usb.h" + +#ifdef DEBUG +static inline void dump_bytes(char *name, uint8_t *bytes, int len) +{ + int i; + DWC_PRINTF("%s: ", name); + for (i=0; idst == src, then the bytes will be encrypted + * in-place. + * + * @return 0 on success, negative error code on error. + */ +int dwc_wusb_aes_encrypt(u8 *src, u8 *key, u8 *dst) +{ + u8 block_t[16]; + DWC_MEMSET(block_t, 0, 16); + + return DWC_AES_CBC(src, 16, key, 16, block_t, dst); +} + +/** + * The CCM-MAC-FUNCTION described in section 6.5 of the WUSB spec. + * This function takes a data string and returns the encrypted CBC + * Counter-mode MIC. + * + * @param key The 128-bit symmetric key. + * @param nonce The CCM nonce. + * @param label The unique 14-byte ASCII text label. + * @param bytes The byte array to be encrypted. + * @param len Length of the byte array. + * @param result Byte array to receive the 8-byte encrypted MIC. + */ +void dwc_wusb_cmf(u8 *key, u8 *nonce, + char *label, u8 *bytes, int len, u8 *result) +{ + u8 block_m[16]; + u8 block_x[16]; + u8 block_t[8]; + int idx, blkNum; + u16 la = (u16)(len + 14); + + /* Set the AES-128 key */ + //dwc_aes_setkey(tfm, key, 16); + + /* Fill block B0 from flags = 0x59, N, and l(m) = 0 */ + block_m[0] = 0x59; + for (idx = 0; idx < 13; idx++) + block_m[idx + 1] = nonce[idx]; + block_m[14] = 0; + block_m[15] = 0; + + /* Produce the CBC IV */ + dwc_wusb_aes_encrypt(block_m, key, block_x); + show_block(block_m, "CBC IV in: ", "\n", 0); + show_block(block_x, "CBC IV out:", "\n", 0); + + /* Fill block B1 from l(a) = Blen + 14, and A */ + block_x[0] ^= (u8)(la >> 8); + block_x[1] ^= (u8)la; + for (idx = 0; idx < 14; idx++) + block_x[idx + 2] ^= label[idx]; + show_block(block_x, "After xor: ", "b1\n", 16); + + dwc_wusb_aes_encrypt(block_x, key, block_x); + show_block(block_x, "After AES: ", "b1\n", 16); + + idx = 0; + blkNum = 0; + + /* Fill remaining blocks with B */ + while (len-- > 0) { + block_x[idx] ^= *bytes++; + if (++idx >= 16) { + idx = 0; + show_block(block_x, "After xor: ", "\n", blkNum); + dwc_wusb_aes_encrypt(block_x, key, block_x); + show_block(block_x, "After AES: ", "\n", blkNum); + blkNum++; + } + } + + /* Handle partial last block */ + if (idx > 0) { + show_block(block_x, "After xor: ", "\n", blkNum); + dwc_wusb_aes_encrypt(block_x, key, block_x); + show_block(block_x, "After AES: ", "\n", blkNum); + } + + /* Save the MIC tag */ + DWC_MEMCPY(block_t, block_x, 8); + show_block(block_t, "MIC tag : ", NULL, 8); + + /* Fill block A0 from flags = 0x01, N, and counter = 0 */ + block_m[0] = 0x01; + block_m[14] = 0; + block_m[15] = 0; + + /* Encrypt the counter */ + dwc_wusb_aes_encrypt(block_m, key, block_x); + show_block(block_x, "CTR[MIC] : ", NULL, 8); + + /* XOR with MIC tag */ + for (idx = 0; idx < 8; idx++) { + block_t[idx] ^= block_x[idx]; + } + + /* Return result to caller */ + DWC_MEMCPY(result, block_t, 8); + show_block(result, "CCM-MIC : ", NULL, 8); + +} + +/** + * The PRF function described in section 6.5 of the WUSB spec. This function + * concatenates MIC values returned from dwc_cmf() to create a value of + * the requested length. + * + * @param prf_len Length of the PRF function in bits (64, 128, or 256). + * @param key, nonce, label, bytes, len Same as for dwc_cmf(). + * @param result Byte array to receive the result. + */ +void dwc_wusb_prf(int prf_len, u8 *key, + u8 *nonce, char *label, u8 *bytes, int len, u8 *result) +{ + int i; + + nonce[0] = 0; + for (i = 0; i < prf_len >> 6; i++, nonce[0]++) { + dwc_wusb_cmf(key, nonce, label, bytes, len, result); + result += 8; + } +} + +/** + * Fills in CCM Nonce per the WUSB spec. + * + * @param[in] haddr Host address. + * @param[in] daddr Device address. + * @param[in] tkid Session Key(PTK) identifier. + * @param[out] nonce Pointer to where the CCM Nonce output is to be written. + */ +void dwc_wusb_fill_ccm_nonce(uint16_t haddr, uint16_t daddr, uint8_t *tkid, + uint8_t *nonce) +{ + + DWC_DEBUG("%s %x %x\n", __func__, daddr, haddr); + + DWC_MEMSET(&nonce[0], 0, 16); + + DWC_MEMCPY(&nonce[6], tkid, 3); + nonce[9] = daddr & 0xFF; + nonce[10] = (daddr >> 8) & 0xFF; + nonce[11] = haddr & 0xFF; + nonce[12] = (haddr >> 8) & 0xFF; + + dump_bytes("CCM nonce", nonce, 16); +} + +/** + * Generates a 16-byte cryptographic-grade random number for the Host/Device + * Nonce. + */ +void dwc_wusb_gen_nonce(uint16_t addr, uint8_t *nonce) +{ + uint8_t inonce[16]; + uint32_t temp[4]; + + /* Fill in the Nonce */ + DWC_MEMSET(&inonce[0], 0, sizeof(inonce)); + inonce[9] = addr & 0xFF; + inonce[10] = (addr >> 8) & 0xFF; + inonce[11] = inonce[9]; + inonce[12] = inonce[10]; + + /* Collect "randomness samples" */ + DWC_RANDOM_BYTES((uint8_t *)temp, 16); + + dwc_wusb_prf_128((uint8_t *)temp, nonce, + "Random Numbers", (uint8_t *)temp, sizeof(temp), + nonce); +} + +/** + * Generates the Session Key (PTK) and Key Confirmation Key (KCK) per the + * WUSB spec. + * + * @param[in] ccm_nonce Pointer to CCM Nonce. + * @param[in] mk Master Key to derive the session from + * @param[in] hnonce Pointer to Host Nonce. + * @param[in] dnonce Pointer to Device Nonce. + * @param[out] kck Pointer to where the KCK output is to be written. + * @param[out] ptk Pointer to where the PTK output is to be written. + */ +void dwc_wusb_gen_key(uint8_t *ccm_nonce, uint8_t *mk, uint8_t *hnonce, + uint8_t *dnonce, uint8_t *kck, uint8_t *ptk) +{ + uint8_t idata[32]; + uint8_t odata[32]; + + dump_bytes("ck", mk, 16); + dump_bytes("hnonce", hnonce, 16); + dump_bytes("dnonce", dnonce, 16); + + /* The data is the HNonce and DNonce concatenated */ + DWC_MEMCPY(&idata[0], hnonce, 16); + DWC_MEMCPY(&idata[16], dnonce, 16); + + dwc_wusb_prf_256(mk, ccm_nonce, "Pair-wise keys", idata, 32, odata); + + /* Low 16 bytes of the result is the KCK, high 16 is the PTK */ + DWC_MEMCPY(kck, &odata[0], 16); + DWC_MEMCPY(ptk, &odata[16], 16); + + dump_bytes("kck", kck, 16); + dump_bytes("ptk", ptk, 16); +} + +/** + * Generates the Message Integrity Code over the Handshake data per the + * WUSB spec. + * + * @param ccm_nonce Pointer to CCM Nonce. + * @param kck Pointer to Key Confirmation Key. + * @param data Pointer to Handshake data to be checked. + * @param mic Pointer to where the MIC output is to be written. + */ +void dwc_wusb_gen_mic(uint8_t *ccm_nonce, uint8_t *kck, + uint8_t *data, uint8_t *mic) +{ + + dwc_wusb_prf_64(kck, ccm_nonce, "out-of-bandMIC", + data, WUSB_HANDSHAKE_LEN_FOR_MIC, mic); +} + +#endif /* DWC_CRYPTOLIB */ diff --git a/drivers/usb/host/dwc_common_port/dwc_crypto.h b/drivers/usb/host/dwc_common_port/dwc_crypto.h new file mode 100644 index 0000000000000000000000000000000000000000..26fcddcfe9ba4b83c921cd2ef8498021176a287f --- /dev/null +++ b/drivers/usb/host/dwc_common_port/dwc_crypto.h @@ -0,0 +1,111 @@ +/* ========================================================================= + * $File: //dwh/usb_iip/dev/software/dwc_common_port_2/dwc_crypto.h $ + * $Revision: #3 $ + * $Date: 2010/09/28 $ + * $Change: 1596182 $ + * + * Synopsys Portability Library Software and documentation + * (hereinafter, "Software") is an Unsupported proprietary work of + * Synopsys, Inc. unless otherwise expressly agreed to in writing + * between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product + * under any End User Software License Agreement or Agreement for + * Licensed Product with Synopsys or any supplement thereto. You are + * permitted to use and redistribute this Software in source and binary + * forms, with or without modification, provided that redistributions + * of source code must retain this notice. You may not view, use, + * disclose, copy or distribute this file or any information contained + * herein except pursuant to this license grant from Synopsys. If you + * do not agree with this notice, including the disclaimer below, then + * you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" + * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL + * SYNOPSYS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE + * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================= */ + +#ifndef _DWC_CRYPTO_H_ +#define _DWC_CRYPTO_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +/** @file + * + * This file contains declarations for the WUSB Cryptographic routines as + * defined in the WUSB spec. They are only to be used internally by the DWC UWB + * modules. + */ + +#include "dwc_os.h" + +int dwc_wusb_aes_encrypt(u8 *src, u8 *key, u8 *dst); + +void dwc_wusb_cmf(u8 *key, u8 *nonce, + char *label, u8 *bytes, int len, u8 *result); +void dwc_wusb_prf(int prf_len, u8 *key, + u8 *nonce, char *label, u8 *bytes, int len, u8 *result); + +/** + * The PRF-64 function described in section 6.5 of the WUSB spec. + * + * @param key, nonce, label, bytes, len, result Same as for dwc_prf(). + */ +static inline void dwc_wusb_prf_64(u8 *key, u8 *nonce, + char *label, u8 *bytes, int len, u8 *result) +{ + dwc_wusb_prf(64, key, nonce, label, bytes, len, result); +} + +/** + * The PRF-128 function described in section 6.5 of the WUSB spec. + * + * @param key, nonce, label, bytes, len, result Same as for dwc_prf(). + */ +static inline void dwc_wusb_prf_128(u8 *key, u8 *nonce, + char *label, u8 *bytes, int len, u8 *result) +{ + dwc_wusb_prf(128, key, nonce, label, bytes, len, result); +} + +/** + * The PRF-256 function described in section 6.5 of the WUSB spec. + * + * @param key, nonce, label, bytes, len, result Same as for dwc_prf(). + */ +static inline void dwc_wusb_prf_256(u8 *key, u8 *nonce, + char *label, u8 *bytes, int len, u8 *result) +{ + dwc_wusb_prf(256, key, nonce, label, bytes, len, result); +} + + +void dwc_wusb_fill_ccm_nonce(uint16_t haddr, uint16_t daddr, uint8_t *tkid, + uint8_t *nonce); +void dwc_wusb_gen_nonce(uint16_t addr, + uint8_t *nonce); + +void dwc_wusb_gen_key(uint8_t *ccm_nonce, uint8_t *mk, + uint8_t *hnonce, uint8_t *dnonce, + uint8_t *kck, uint8_t *ptk); + + +void dwc_wusb_gen_mic(uint8_t *ccm_nonce, uint8_t + *kck, uint8_t *data, uint8_t *mic); + +#ifdef __cplusplus +} +#endif + +#endif /* _DWC_CRYPTO_H_ */ diff --git a/drivers/usb/host/dwc_common_port/dwc_dh.c b/drivers/usb/host/dwc_common_port/dwc_dh.c new file mode 100644 index 0000000000000000000000000000000000000000..2b429a32aaf0903c2b73e9aa30ef78ba280393ee --- /dev/null +++ b/drivers/usb/host/dwc_common_port/dwc_dh.c @@ -0,0 +1,291 @@ +/* ========================================================================= + * $File: //dwh/usb_iip/dev/software/dwc_common_port_2/dwc_dh.c $ + * $Revision: #3 $ + * $Date: 2010/09/28 $ + * $Change: 1596182 $ + * + * Synopsys Portability Library Software and documentation + * (hereinafter, "Software") is an Unsupported proprietary work of + * Synopsys, Inc. unless otherwise expressly agreed to in writing + * between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product + * under any End User Software License Agreement or Agreement for + * Licensed Product with Synopsys or any supplement thereto. You are + * permitted to use and redistribute this Software in source and binary + * forms, with or without modification, provided that redistributions + * of source code must retain this notice. You may not view, use, + * disclose, copy or distribute this file or any information contained + * herein except pursuant to this license grant from Synopsys. If you + * do not agree with this notice, including the disclaimer below, then + * you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" + * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL + * SYNOPSYS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE + * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================= */ +#ifdef DWC_CRYPTOLIB + +#ifndef CONFIG_MACH_IPMATE + +#include "dwc_dh.h" +#include "dwc_modpow.h" + +#ifdef DEBUG +/* This function prints out a buffer in the format described in the Association + * Model specification. */ +static void dh_dump(char *str, void *_num, int len) +{ + uint8_t *num = _num; + int i; + DWC_PRINTF("%s\n", str); + for (i = 0; i < len; i ++) { + DWC_PRINTF("%02x", num[i]); + if (((i + 1) % 2) == 0) DWC_PRINTF(" "); + if (((i + 1) % 26) == 0) DWC_PRINTF("\n"); + } + + DWC_PRINTF("\n"); +} +#else +#define dh_dump(_x...) do {; } while(0) +#endif + +/* Constant g value */ +static __u32 dh_g[] = { + 0x02000000, +}; + +/* Constant p value */ +static __u32 dh_p[] = { + 0xFFFFFFFF, 0xFFFFFFFF, 0xA2DA0FC9, 0x34C26821, 0x8B62C6C4, 0xD11CDC80, 0x084E0229, 0x74CC678A, + 0xA6BE0B02, 0x229B133B, 0x79084A51, 0xDD04348E, 0xB31995EF, 0x1B433ACD, 0x6D0A2B30, 0x37145FF2, + 0x6D35E14F, 0x45C2516D, 0x76B585E4, 0xC67E5E62, 0xE9424CF4, 0x6BED37A6, 0xB65CFF0B, 0xEDB706F4, + 0xFB6B38EE, 0xA59F895A, 0x11249FAE, 0xE61F4B7C, 0x51662849, 0x3D5BE4EC, 0xB87C00C2, 0x05BF63A1, + 0x3648DA98, 0x9AD3551C, 0xA83F1669, 0x5FCF24FD, 0x235D6583, 0x96ADA3DC, 0x56F3621C, 0xBB528520, + 0x0729D59E, 0x6D969670, 0x4E350C67, 0x0498BC4A, 0x086C74F1, 0x7C2118CA, 0x465E9032, 0x3BCE362E, + 0x2C779EE3, 0x03860E18, 0xA283279B, 0x8FA207EC, 0xF05DC5B5, 0xC9524C6F, 0xF6CB2BDE, 0x18175895, + 0x7C499539, 0xE56A95EA, 0x1826D215, 0x1005FA98, 0x5A8E7215, 0x2DC4AA8A, 0x0D1733AD, 0x337A5004, + 0xAB2155A8, 0x64BA1CDF, 0x0485FBEC, 0x0AEFDB58, 0x5771EA8A, 0x7D0C065D, 0x850F97B3, 0xC7E4E1A6, + 0x8CAEF5AB, 0xD73309DB, 0xE0948C1E, 0x9D61254A, 0x26D2E3CE, 0x6BEED21A, 0x06FA2FF1, 0x64088AD9, + 0x730276D8, 0x646AC83E, 0x182B1F52, 0x0C207B17, 0x5717E1BB, 0x6C5D617A, 0xC0880977, 0xE246D9BA, + 0xA04FE208, 0x31ABE574, 0xFC5BDB43, 0x8E10FDE0, 0x20D1824B, 0xCAD23AA9, 0xFFFFFFFF, 0xFFFFFFFF, +}; + +static void dh_swap_bytes(void *_in, void *_out, uint32_t len) +{ + uint8_t *in = _in; + uint8_t *out = _out; + int i; + for (i=0; inext = (link); \ + (link)->prev = (link); \ +} while (0) + +#define DWC_LIST_FIRST(link) ((link)->next) +#define DWC_LIST_LAST(link) ((link)->prev) +#define DWC_LIST_END(link) (link) +#define DWC_LIST_NEXT(link) ((link)->next) +#define DWC_LIST_PREV(link) ((link)->prev) +#define DWC_LIST_EMPTY(link) \ + (DWC_LIST_FIRST(link) == DWC_LIST_END(link)) +#define DWC_LIST_ENTRY(link, type, field) \ + (type *)((uint8_t *)(link) - (size_t)(&((type *)0)->field)) + +#if 0 +#define DWC_LIST_INSERT_HEAD(list, link) do { \ + (link)->next = (list)->next; \ + (link)->prev = (list); \ + (list)->next->prev = (link); \ + (list)->next = (link); \ +} while (0) + +#define DWC_LIST_INSERT_TAIL(list, link) do { \ + (link)->next = (list); \ + (link)->prev = (list)->prev; \ + (list)->prev->next = (link); \ + (list)->prev = (link); \ +} while (0) +#else +#define DWC_LIST_INSERT_HEAD(list, link) do { \ + dwc_list_link_t *__next__ = (list)->next; \ + __next__->prev = (link); \ + (link)->next = __next__; \ + (link)->prev = (list); \ + (list)->next = (link); \ +} while (0) + +#define DWC_LIST_INSERT_TAIL(list, link) do { \ + dwc_list_link_t *__prev__ = (list)->prev; \ + (list)->prev = (link); \ + (link)->next = (list); \ + (link)->prev = __prev__; \ + __prev__->next = (link); \ +} while (0) +#endif + +#if 0 +static inline void __list_add(struct list_head *new, + struct list_head *prev, + struct list_head *next) +{ + next->prev = new; + new->next = next; + new->prev = prev; + prev->next = new; +} + +static inline void list_add(struct list_head *new, struct list_head *head) +{ + __list_add(new, head, head->next); +} + +static inline void list_add_tail(struct list_head *new, struct list_head *head) +{ + __list_add(new, head->prev, head); +} + +static inline void __list_del(struct list_head * prev, struct list_head * next) +{ + next->prev = prev; + prev->next = next; +} + +static inline void list_del(struct list_head *entry) +{ + __list_del(entry->prev, entry->next); + entry->next = LIST_POISON1; + entry->prev = LIST_POISON2; +} +#endif + +#define DWC_LIST_REMOVE(link) do { \ + (link)->next->prev = (link)->prev; \ + (link)->prev->next = (link)->next; \ +} while (0) + +#define DWC_LIST_REMOVE_INIT(link) do { \ + DWC_LIST_REMOVE(link); \ + DWC_LIST_INIT(link); \ +} while (0) + +#define DWC_LIST_MOVE_HEAD(list, link) do { \ + DWC_LIST_REMOVE(link); \ + DWC_LIST_INSERT_HEAD(list, link); \ +} while (0) + +#define DWC_LIST_MOVE_TAIL(list, link) do { \ + DWC_LIST_REMOVE(link); \ + DWC_LIST_INSERT_TAIL(list, link); \ +} while (0) + +#define DWC_LIST_FOREACH(var, list) \ + for((var) = DWC_LIST_FIRST(list); \ + (var) != DWC_LIST_END(list); \ + (var) = DWC_LIST_NEXT(var)) + +#define DWC_LIST_FOREACH_SAFE(var, var2, list) \ + for((var) = DWC_LIST_FIRST(list), (var2) = DWC_LIST_NEXT(var); \ + (var) != DWC_LIST_END(list); \ + (var) = (var2), (var2) = DWC_LIST_NEXT(var2)) + +#define DWC_LIST_FOREACH_REVERSE(var, list) \ + for((var) = DWC_LIST_LAST(list); \ + (var) != DWC_LIST_END(list); \ + (var) = DWC_LIST_PREV(var)) + +/* + * Singly-linked List definitions. + */ +#define DWC_SLIST_HEAD(name, type) \ +struct name { \ + struct type *slh_first; /* first element */ \ +} + +#define DWC_SLIST_HEAD_INITIALIZER(head) \ + { NULL } + +#define DWC_SLIST_ENTRY(type) \ +struct { \ + struct type *sle_next; /* next element */ \ +} + +/* + * Singly-linked List access methods. + */ +#define DWC_SLIST_FIRST(head) ((head)->slh_first) +#define DWC_SLIST_END(head) NULL +#define DWC_SLIST_EMPTY(head) (SLIST_FIRST(head) == SLIST_END(head)) +#define DWC_SLIST_NEXT(elm, field) ((elm)->field.sle_next) + +#define DWC_SLIST_FOREACH(var, head, field) \ + for((var) = SLIST_FIRST(head); \ + (var) != SLIST_END(head); \ + (var) = SLIST_NEXT(var, field)) + +#define DWC_SLIST_FOREACH_PREVPTR(var, varp, head, field) \ + for((varp) = &SLIST_FIRST((head)); \ + ((var) = *(varp)) != SLIST_END(head); \ + (varp) = &SLIST_NEXT((var), field)) + +/* + * Singly-linked List functions. + */ +#define DWC_SLIST_INIT(head) { \ + SLIST_FIRST(head) = SLIST_END(head); \ +} + +#define DWC_SLIST_INSERT_AFTER(slistelm, elm, field) do { \ + (elm)->field.sle_next = (slistelm)->field.sle_next; \ + (slistelm)->field.sle_next = (elm); \ +} while (0) + +#define DWC_SLIST_INSERT_HEAD(head, elm, field) do { \ + (elm)->field.sle_next = (head)->slh_first; \ + (head)->slh_first = (elm); \ +} while (0) + +#define DWC_SLIST_REMOVE_NEXT(head, elm, field) do { \ + (elm)->field.sle_next = (elm)->field.sle_next->field.sle_next; \ +} while (0) + +#define DWC_SLIST_REMOVE_HEAD(head, field) do { \ + (head)->slh_first = (head)->slh_first->field.sle_next; \ +} while (0) + +#define DWC_SLIST_REMOVE(head, elm, type, field) do { \ + if ((head)->slh_first == (elm)) { \ + SLIST_REMOVE_HEAD((head), field); \ + } \ + else { \ + struct type *curelm = (head)->slh_first; \ + while( curelm->field.sle_next != (elm) ) \ + curelm = curelm->field.sle_next; \ + curelm->field.sle_next = \ + curelm->field.sle_next->field.sle_next; \ + } \ +} while (0) + +/* + * Simple queue definitions. + */ +#define DWC_SIMPLEQ_HEAD(name, type) \ +struct name { \ + struct type *sqh_first; /* first element */ \ + struct type **sqh_last; /* addr of last next element */ \ +} + +#define DWC_SIMPLEQ_HEAD_INITIALIZER(head) \ + { NULL, &(head).sqh_first } + +#define DWC_SIMPLEQ_ENTRY(type) \ +struct { \ + struct type *sqe_next; /* next element */ \ +} + +/* + * Simple queue access methods. + */ +#define DWC_SIMPLEQ_FIRST(head) ((head)->sqh_first) +#define DWC_SIMPLEQ_END(head) NULL +#define DWC_SIMPLEQ_EMPTY(head) (SIMPLEQ_FIRST(head) == SIMPLEQ_END(head)) +#define DWC_SIMPLEQ_NEXT(elm, field) ((elm)->field.sqe_next) + +#define DWC_SIMPLEQ_FOREACH(var, head, field) \ + for((var) = SIMPLEQ_FIRST(head); \ + (var) != SIMPLEQ_END(head); \ + (var) = SIMPLEQ_NEXT(var, field)) + +/* + * Simple queue functions. + */ +#define DWC_SIMPLEQ_INIT(head) do { \ + (head)->sqh_first = NULL; \ + (head)->sqh_last = &(head)->sqh_first; \ +} while (0) + +#define DWC_SIMPLEQ_INSERT_HEAD(head, elm, field) do { \ + if (((elm)->field.sqe_next = (head)->sqh_first) == NULL) \ + (head)->sqh_last = &(elm)->field.sqe_next; \ + (head)->sqh_first = (elm); \ +} while (0) + +#define DWC_SIMPLEQ_INSERT_TAIL(head, elm, field) do { \ + (elm)->field.sqe_next = NULL; \ + *(head)->sqh_last = (elm); \ + (head)->sqh_last = &(elm)->field.sqe_next; \ +} while (0) + +#define DWC_SIMPLEQ_INSERT_AFTER(head, listelm, elm, field) do { \ + if (((elm)->field.sqe_next = (listelm)->field.sqe_next) == NULL)\ + (head)->sqh_last = &(elm)->field.sqe_next; \ + (listelm)->field.sqe_next = (elm); \ +} while (0) + +#define DWC_SIMPLEQ_REMOVE_HEAD(head, field) do { \ + if (((head)->sqh_first = (head)->sqh_first->field.sqe_next) == NULL) \ + (head)->sqh_last = &(head)->sqh_first; \ +} while (0) + +/* + * Tail queue definitions. + */ +#define DWC_TAILQ_HEAD(name, type) \ +struct name { \ + struct type *tqh_first; /* first element */ \ + struct type **tqh_last; /* addr of last next element */ \ +} + +#define DWC_TAILQ_HEAD_INITIALIZER(head) \ + { NULL, &(head).tqh_first } + +#define DWC_TAILQ_ENTRY(type) \ +struct { \ + struct type *tqe_next; /* next element */ \ + struct type **tqe_prev; /* address of previous next element */ \ +} + +/* + * tail queue access methods + */ +#define DWC_TAILQ_FIRST(head) ((head)->tqh_first) +#define DWC_TAILQ_END(head) NULL +#define DWC_TAILQ_NEXT(elm, field) ((elm)->field.tqe_next) +#define DWC_TAILQ_LAST(head, headname) \ + (*(((struct headname *)((head)->tqh_last))->tqh_last)) +/* XXX */ +#define DWC_TAILQ_PREV(elm, headname, field) \ + (*(((struct headname *)((elm)->field.tqe_prev))->tqh_last)) +#define DWC_TAILQ_EMPTY(head) \ + (DWC_TAILQ_FIRST(head) == DWC_TAILQ_END(head)) + +#define DWC_TAILQ_FOREACH(var, head, field) \ + for ((var) = DWC_TAILQ_FIRST(head); \ + (var) != DWC_TAILQ_END(head); \ + (var) = DWC_TAILQ_NEXT(var, field)) + +#define DWC_TAILQ_FOREACH_REVERSE(var, head, headname, field) \ + for ((var) = DWC_TAILQ_LAST(head, headname); \ + (var) != DWC_TAILQ_END(head); \ + (var) = DWC_TAILQ_PREV(var, headname, field)) + +/* + * Tail queue functions. + */ +#define DWC_TAILQ_INIT(head) do { \ + (head)->tqh_first = NULL; \ + (head)->tqh_last = &(head)->tqh_first; \ +} while (0) + +#define DWC_TAILQ_INSERT_HEAD(head, elm, field) do { \ + if (((elm)->field.tqe_next = (head)->tqh_first) != NULL) \ + (head)->tqh_first->field.tqe_prev = \ + &(elm)->field.tqe_next; \ + else \ + (head)->tqh_last = &(elm)->field.tqe_next; \ + (head)->tqh_first = (elm); \ + (elm)->field.tqe_prev = &(head)->tqh_first; \ +} while (0) + +#define DWC_TAILQ_INSERT_TAIL(head, elm, field) do { \ + (elm)->field.tqe_next = NULL; \ + (elm)->field.tqe_prev = (head)->tqh_last; \ + *(head)->tqh_last = (elm); \ + (head)->tqh_last = &(elm)->field.tqe_next; \ +} while (0) + +#define DWC_TAILQ_INSERT_AFTER(head, listelm, elm, field) do { \ + if (((elm)->field.tqe_next = (listelm)->field.tqe_next) != NULL)\ + (elm)->field.tqe_next->field.tqe_prev = \ + &(elm)->field.tqe_next; \ + else \ + (head)->tqh_last = &(elm)->field.tqe_next; \ + (listelm)->field.tqe_next = (elm); \ + (elm)->field.tqe_prev = &(listelm)->field.tqe_next; \ +} while (0) + +#define DWC_TAILQ_INSERT_BEFORE(listelm, elm, field) do { \ + (elm)->field.tqe_prev = (listelm)->field.tqe_prev; \ + (elm)->field.tqe_next = (listelm); \ + *(listelm)->field.tqe_prev = (elm); \ + (listelm)->field.tqe_prev = &(elm)->field.tqe_next; \ +} while (0) + +#define DWC_TAILQ_REMOVE(head, elm, field) do { \ + if (((elm)->field.tqe_next) != NULL) \ + (elm)->field.tqe_next->field.tqe_prev = \ + (elm)->field.tqe_prev; \ + else \ + (head)->tqh_last = (elm)->field.tqe_prev; \ + *(elm)->field.tqe_prev = (elm)->field.tqe_next; \ +} while (0) + +#define DWC_TAILQ_REPLACE(head, elm, elm2, field) do { \ + if (((elm2)->field.tqe_next = (elm)->field.tqe_next) != NULL) \ + (elm2)->field.tqe_next->field.tqe_prev = \ + &(elm2)->field.tqe_next; \ + else \ + (head)->tqh_last = &(elm2)->field.tqe_next; \ + (elm2)->field.tqe_prev = (elm)->field.tqe_prev; \ + *(elm2)->field.tqe_prev = (elm2); \ +} while (0) + +/* + * Circular queue definitions. + */ +#define DWC_CIRCLEQ_HEAD(name, type) \ +struct name { \ + struct type *cqh_first; /* first element */ \ + struct type *cqh_last; /* last element */ \ +} + +#define DWC_CIRCLEQ_HEAD_INITIALIZER(head) \ + { DWC_CIRCLEQ_END(&head), DWC_CIRCLEQ_END(&head) } + +#define DWC_CIRCLEQ_ENTRY(type) \ +struct { \ + struct type *cqe_next; /* next element */ \ + struct type *cqe_prev; /* previous element */ \ +} + +/* + * Circular queue access methods + */ +#define DWC_CIRCLEQ_FIRST(head) ((head)->cqh_first) +#define DWC_CIRCLEQ_LAST(head) ((head)->cqh_last) +#define DWC_CIRCLEQ_END(head) ((void *)(head)) +#define DWC_CIRCLEQ_NEXT(elm, field) ((elm)->field.cqe_next) +#define DWC_CIRCLEQ_PREV(elm, field) ((elm)->field.cqe_prev) +#define DWC_CIRCLEQ_EMPTY(head) \ + (DWC_CIRCLEQ_FIRST(head) == DWC_CIRCLEQ_END(head)) + +#define DWC_CIRCLEQ_EMPTY_ENTRY(elm, field) (((elm)->field.cqe_next == NULL) && ((elm)->field.cqe_prev == NULL)) + +#define DWC_CIRCLEQ_FOREACH(var, head, field) \ + for((var) = DWC_CIRCLEQ_FIRST(head); \ + (var) != DWC_CIRCLEQ_END(head); \ + (var) = DWC_CIRCLEQ_NEXT(var, field)) + +#define DWC_CIRCLEQ_FOREACH_SAFE(var, var2, head, field) \ + for((var) = DWC_CIRCLEQ_FIRST(head), var2 = DWC_CIRCLEQ_NEXT(var, field); \ + (var) != DWC_CIRCLEQ_END(head); \ + (var) = var2, var2 = DWC_CIRCLEQ_NEXT(var, field)) + +#define DWC_CIRCLEQ_FOREACH_REVERSE(var, head, field) \ + for((var) = DWC_CIRCLEQ_LAST(head); \ + (var) != DWC_CIRCLEQ_END(head); \ + (var) = DWC_CIRCLEQ_PREV(var, field)) + +/* + * Circular queue functions. + */ +#define DWC_CIRCLEQ_INIT(head) do { \ + (head)->cqh_first = DWC_CIRCLEQ_END(head); \ + (head)->cqh_last = DWC_CIRCLEQ_END(head); \ +} while (0) + +#define DWC_CIRCLEQ_INIT_ENTRY(elm, field) do { \ + (elm)->field.cqe_next = NULL; \ + (elm)->field.cqe_prev = NULL; \ +} while (0) + +#define DWC_CIRCLEQ_INSERT_AFTER(head, listelm, elm, field) do { \ + (elm)->field.cqe_next = (listelm)->field.cqe_next; \ + (elm)->field.cqe_prev = (listelm); \ + if ((listelm)->field.cqe_next == DWC_CIRCLEQ_END(head)) \ + (head)->cqh_last = (elm); \ + else \ + (listelm)->field.cqe_next->field.cqe_prev = (elm); \ + (listelm)->field.cqe_next = (elm); \ +} while (0) + +#define DWC_CIRCLEQ_INSERT_BEFORE(head, listelm, elm, field) do { \ + (elm)->field.cqe_next = (listelm); \ + (elm)->field.cqe_prev = (listelm)->field.cqe_prev; \ + if ((listelm)->field.cqe_prev == DWC_CIRCLEQ_END(head)) \ + (head)->cqh_first = (elm); \ + else \ + (listelm)->field.cqe_prev->field.cqe_next = (elm); \ + (listelm)->field.cqe_prev = (elm); \ +} while (0) + +#define DWC_CIRCLEQ_INSERT_HEAD(head, elm, field) do { \ + (elm)->field.cqe_next = (head)->cqh_first; \ + (elm)->field.cqe_prev = DWC_CIRCLEQ_END(head); \ + if ((head)->cqh_last == DWC_CIRCLEQ_END(head)) \ + (head)->cqh_last = (elm); \ + else \ + (head)->cqh_first->field.cqe_prev = (elm); \ + (head)->cqh_first = (elm); \ +} while (0) + +#define DWC_CIRCLEQ_INSERT_TAIL(head, elm, field) do { \ + (elm)->field.cqe_next = DWC_CIRCLEQ_END(head); \ + (elm)->field.cqe_prev = (head)->cqh_last; \ + if ((head)->cqh_first == DWC_CIRCLEQ_END(head)) \ + (head)->cqh_first = (elm); \ + else \ + (head)->cqh_last->field.cqe_next = (elm); \ + (head)->cqh_last = (elm); \ +} while (0) + +#define DWC_CIRCLEQ_REMOVE(head, elm, field) do { \ + if ((elm)->field.cqe_next == DWC_CIRCLEQ_END(head)) \ + (head)->cqh_last = (elm)->field.cqe_prev; \ + else \ + (elm)->field.cqe_next->field.cqe_prev = \ + (elm)->field.cqe_prev; \ + if ((elm)->field.cqe_prev == DWC_CIRCLEQ_END(head)) \ + (head)->cqh_first = (elm)->field.cqe_next; \ + else \ + (elm)->field.cqe_prev->field.cqe_next = \ + (elm)->field.cqe_next; \ +} while (0) + +#define DWC_CIRCLEQ_REMOVE_INIT(head, elm, field) do { \ + DWC_CIRCLEQ_REMOVE(head, elm, field); \ + DWC_CIRCLEQ_INIT_ENTRY(elm, field); \ +} while (0) + +#define DWC_CIRCLEQ_REPLACE(head, elm, elm2, field) do { \ + if (((elm2)->field.cqe_next = (elm)->field.cqe_next) == \ + DWC_CIRCLEQ_END(head)) \ + (head).cqh_last = (elm2); \ + else \ + (elm2)->field.cqe_next->field.cqe_prev = (elm2); \ + if (((elm2)->field.cqe_prev = (elm)->field.cqe_prev) == \ + DWC_CIRCLEQ_END(head)) \ + (head).cqh_first = (elm2); \ + else \ + (elm2)->field.cqe_prev->field.cqe_next = (elm2); \ +} while (0) + +#ifdef __cplusplus +} +#endif + +#endif /* _DWC_LIST_H_ */ diff --git a/drivers/usb/host/dwc_common_port/dwc_mem.c b/drivers/usb/host/dwc_common_port/dwc_mem.c new file mode 100644 index 0000000000000000000000000000000000000000..ad645ff1ba7e06c852440396767e69279b3b31db --- /dev/null +++ b/drivers/usb/host/dwc_common_port/dwc_mem.c @@ -0,0 +1,245 @@ +/* Memory Debugging */ +#ifdef DWC_DEBUG_MEMORY + +#include "dwc_os.h" +#include "dwc_list.h" + +struct allocation { + void *addr; + void *ctx; + char *func; + int line; + uint32_t size; + int dma; + DWC_CIRCLEQ_ENTRY(allocation) entry; +}; + +DWC_CIRCLEQ_HEAD(allocation_queue, allocation); + +struct allocation_manager { + void *mem_ctx; + struct allocation_queue allocations; + + /* statistics */ + int num; + int num_freed; + int num_active; + uint32_t total; + uint32_t cur; + uint32_t max; +}; + +static struct allocation_manager *manager = NULL; + +static int add_allocation(void *ctx, uint32_t size, char const *func, int line, void *addr, + int dma) +{ + struct allocation *a; + + DWC_ASSERT(manager != NULL, "manager not allocated"); + + a = __DWC_ALLOC_ATOMIC(manager->mem_ctx, sizeof(*a)); + if (!a) { + return -DWC_E_NO_MEMORY; + } + + a->func = __DWC_ALLOC_ATOMIC(manager->mem_ctx, DWC_STRLEN(func) + 1); + if (!a->func) { + __DWC_FREE(manager->mem_ctx, a); + return -DWC_E_NO_MEMORY; + } + + DWC_MEMCPY(a->func, func, DWC_STRLEN(func) + 1); + a->addr = addr; + a->ctx = ctx; + a->line = line; + a->size = size; + a->dma = dma; + DWC_CIRCLEQ_INSERT_TAIL(&manager->allocations, a, entry); + + /* Update stats */ + manager->num++; + manager->num_active++; + manager->total += size; + manager->cur += size; + + if (manager->max < manager->cur) { + manager->max = manager->cur; + } + + return 0; +} + +static struct allocation *find_allocation(void *ctx, void *addr) +{ + struct allocation *a; + + DWC_CIRCLEQ_FOREACH(a, &manager->allocations, entry) { + if (a->ctx == ctx && a->addr == addr) { + return a; + } + } + + return NULL; +} + +static void free_allocation(void *ctx, void *addr, char const *func, int line) +{ + struct allocation *a = find_allocation(ctx, addr); + + if (!a) { + DWC_ASSERT(0, + "Free of address %p that was never allocated or already freed %s:%d", + addr, func, line); + return; + } + + DWC_CIRCLEQ_REMOVE(&manager->allocations, a, entry); + + manager->num_active--; + manager->num_freed++; + manager->cur -= a->size; + __DWC_FREE(manager->mem_ctx, a->func); + __DWC_FREE(manager->mem_ctx, a); +} + +int dwc_memory_debug_start(void *mem_ctx) +{ + DWC_ASSERT(manager == NULL, "Memory debugging has already started\n"); + + if (manager) { + return -DWC_E_BUSY; + } + + manager = __DWC_ALLOC(mem_ctx, sizeof(*manager)); + if (!manager) { + return -DWC_E_NO_MEMORY; + } + + DWC_CIRCLEQ_INIT(&manager->allocations); + manager->mem_ctx = mem_ctx; + manager->num = 0; + manager->num_freed = 0; + manager->num_active = 0; + manager->total = 0; + manager->cur = 0; + manager->max = 0; + + return 0; +} + +void dwc_memory_debug_stop(void) +{ + struct allocation *a; + + dwc_memory_debug_report(); + + DWC_CIRCLEQ_FOREACH(a, &manager->allocations, entry) { + DWC_ERROR("Memory leaked from %s:%d\n", a->func, a->line); + free_allocation(a->ctx, a->addr, NULL, -1); + } + + __DWC_FREE(manager->mem_ctx, manager); +} + +void dwc_memory_debug_report(void) +{ + struct allocation *a; + + DWC_PRINTF("\n\n\n----------------- Memory Debugging Report -----------------\n\n"); + DWC_PRINTF("Num Allocations = %d\n", manager->num); + DWC_PRINTF("Freed = %d\n", manager->num_freed); + DWC_PRINTF("Active = %d\n", manager->num_active); + DWC_PRINTF("Current Memory Used = %d\n", manager->cur); + DWC_PRINTF("Total Memory Used = %d\n", manager->total); + DWC_PRINTF("Maximum Memory Used at Once = %d\n", manager->max); + DWC_PRINTF("Unfreed allocations:\n"); + + DWC_CIRCLEQ_FOREACH(a, &manager->allocations, entry) { + DWC_PRINTF(" addr=%p, size=%d from %s:%d, DMA=%d\n", + a->addr, a->size, a->func, a->line, a->dma); + } +} + +/* The replacement functions */ +void *dwc_alloc_debug(void *mem_ctx, uint32_t size, char const *func, int line) +{ + void *addr = __DWC_ALLOC(mem_ctx, size); + + if (!addr) { + return NULL; + } + + if (add_allocation(mem_ctx, size, func, line, addr, 0)) { + __DWC_FREE(mem_ctx, addr); + return NULL; + } + + return addr; +} + +void *dwc_alloc_atomic_debug(void *mem_ctx, uint32_t size, char const *func, + int line) +{ + void *addr = __DWC_ALLOC_ATOMIC(mem_ctx, size); + + if (!addr) { + return NULL; + } + + if (add_allocation(mem_ctx, size, func, line, addr, 0)) { + __DWC_FREE(mem_ctx, addr); + return NULL; + } + + return addr; +} + +void dwc_free_debug(void *mem_ctx, void *addr, char const *func, int line) +{ + free_allocation(mem_ctx, addr, func, line); + __DWC_FREE(mem_ctx, addr); +} + +void *dwc_dma_alloc_debug(void *dma_ctx, uint32_t size, dwc_dma_t *dma_addr, + char const *func, int line) +{ + void *addr = __DWC_DMA_ALLOC(dma_ctx, size, dma_addr); + + if (!addr) { + return NULL; + } + + if (add_allocation(dma_ctx, size, func, line, addr, 1)) { + __DWC_DMA_FREE(dma_ctx, size, addr, *dma_addr); + return NULL; + } + + return addr; +} + +void *dwc_dma_alloc_atomic_debug(void *dma_ctx, uint32_t size, + dwc_dma_t *dma_addr, char const *func, int line) +{ + void *addr = __DWC_DMA_ALLOC_ATOMIC(dma_ctx, size, dma_addr); + + if (!addr) { + return NULL; + } + + if (add_allocation(dma_ctx, size, func, line, addr, 1)) { + __DWC_DMA_FREE(dma_ctx, size, addr, *dma_addr); + return NULL; + } + + return addr; +} + +void dwc_dma_free_debug(void *dma_ctx, uint32_t size, void *virt_addr, + dwc_dma_t dma_addr, char const *func, int line) +{ + free_allocation(dma_ctx, virt_addr, func, line); + __DWC_DMA_FREE(dma_ctx, size, virt_addr, dma_addr); +} + +#endif /* DWC_DEBUG_MEMORY */ diff --git a/drivers/usb/host/dwc_common_port/dwc_modpow.c b/drivers/usb/host/dwc_common_port/dwc_modpow.c new file mode 100644 index 0000000000000000000000000000000000000000..20045381208a31d5dfb420318b0a4fbb1eca51a1 --- /dev/null +++ b/drivers/usb/host/dwc_common_port/dwc_modpow.c @@ -0,0 +1,636 @@ +/* Bignum routines adapted from PUTTY sources. PuTTY copyright notice follows. + * + * PuTTY is copyright 1997-2007 Simon Tatham. + * + * Portions copyright Robert de Bath, Joris van Rantwijk, Delian + * Delchev, Andreas Schultz, Jeroen Massar, Wez Furlong, Nicolas Barry, + * Justin Bradford, Ben Harris, Malcolm Smith, Ahmad Khalifa, Markus + * Kuhn, and CORE SDI S.A. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation files + * (the "Software"), to deal in the Software without restriction, + * including without limitation the rights to use, copy, modify, merge, + * publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE + * FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF + * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + */ +#ifdef DWC_CRYPTOLIB + +#ifndef CONFIG_MACH_IPMATE + +#include "dwc_modpow.h" + +#define BIGNUM_INT_MASK 0xFFFFFFFFUL +#define BIGNUM_TOP_BIT 0x80000000UL +#define BIGNUM_INT_BITS 32 + + +static void *snmalloc(void *mem_ctx, size_t n, size_t size) +{ + void *p; + size *= n; + if (size == 0) size = 1; + p = dwc_alloc(mem_ctx, size); + return p; +} + +#define snewn(ctx, n, type) ((type *)snmalloc((ctx), (n), sizeof(type))) +#define sfree dwc_free + +/* + * Usage notes: + * * Do not call the DIVMOD_WORD macro with expressions such as array + * subscripts, as some implementations object to this (see below). + * * Note that none of the division methods below will cope if the + * quotient won't fit into BIGNUM_INT_BITS. Callers should be careful + * to avoid this case. + * If this condition occurs, in the case of the x86 DIV instruction, + * an overflow exception will occur, which (according to a correspondent) + * will manifest on Windows as something like + * 0xC0000095: Integer overflow + * The C variant won't give the right answer, either. + */ + +#define MUL_WORD(w1, w2) ((BignumDblInt)w1 * w2) + +#if defined __GNUC__ && defined __i386__ +#define DIVMOD_WORD(q, r, hi, lo, w) \ + __asm__("div %2" : \ + "=d" (r), "=a" (q) : \ + "r" (w), "d" (hi), "a" (lo)) +#else +#define DIVMOD_WORD(q, r, hi, lo, w) do { \ + BignumDblInt n = (((BignumDblInt)hi) << BIGNUM_INT_BITS) | lo; \ + q = n / w; \ + r = n % w; \ +} while (0) +#endif + +// q = n / w; +// r = n % w; + +#define BIGNUM_INT_BYTES (BIGNUM_INT_BITS / 8) + +#define BIGNUM_INTERNAL + +static Bignum newbn(void *mem_ctx, int length) +{ + Bignum b = snewn(mem_ctx, length + 1, BignumInt); + //if (!b) + //abort(); /* FIXME */ + DWC_MEMSET(b, 0, (length + 1) * sizeof(*b)); + b[0] = length; + return b; +} + +void freebn(void *mem_ctx, Bignum b) +{ + /* + * Burn the evidence, just in case. + */ + DWC_MEMSET(b, 0, sizeof(b[0]) * (b[0] + 1)); + sfree(mem_ctx, b); +} + +/* + * Compute c = a * b. + * Input is in the first len words of a and b. + * Result is returned in the first 2*len words of c. + */ +static void internal_mul(BignumInt *a, BignumInt *b, + BignumInt *c, int len) +{ + int i, j; + BignumDblInt t; + + for (j = 0; j < 2 * len; j++) + c[j] = 0; + + for (i = len - 1; i >= 0; i--) { + t = 0; + for (j = len - 1; j >= 0; j--) { + t += MUL_WORD(a[i], (BignumDblInt) b[j]); + t += (BignumDblInt) c[i + j + 1]; + c[i + j + 1] = (BignumInt) t; + t = t >> BIGNUM_INT_BITS; + } + c[i] = (BignumInt) t; + } +} + +static void internal_add_shifted(BignumInt *number, + unsigned n, int shift) +{ + int word = 1 + (shift / BIGNUM_INT_BITS); + int bshift = shift % BIGNUM_INT_BITS; + BignumDblInt addend; + + addend = (BignumDblInt)n << bshift; + + while (addend) { + addend += number[word]; + number[word] = (BignumInt) addend & BIGNUM_INT_MASK; + addend >>= BIGNUM_INT_BITS; + word++; + } +} + +/* + * Compute a = a % m. + * Input in first alen words of a and first mlen words of m. + * Output in first alen words of a + * (of which first alen-mlen words will be zero). + * The MSW of m MUST have its high bit set. + * Quotient is accumulated in the `quotient' array, which is a Bignum + * rather than the internal bigendian format. Quotient parts are shifted + * left by `qshift' before adding into quot. + */ +static void internal_mod(BignumInt *a, int alen, + BignumInt *m, int mlen, + BignumInt *quot, int qshift) +{ + BignumInt m0, m1; + unsigned int h; + int i, k; + + m0 = m[0]; + if (mlen > 1) + m1 = m[1]; + else + m1 = 0; + + for (i = 0; i <= alen - mlen; i++) { + BignumDblInt t; + unsigned int q, r, c, ai1; + + if (i == 0) { + h = 0; + } else { + h = a[i - 1]; + a[i - 1] = 0; + } + + if (i == alen - 1) + ai1 = 0; + else + ai1 = a[i + 1]; + + /* Find q = h:a[i] / m0 */ + if (h >= m0) { + /* + * Special case. + * + * To illustrate it, suppose a BignumInt is 8 bits, and + * we are dividing (say) A1:23:45:67 by A1:B2:C3. Then + * our initial division will be 0xA123 / 0xA1, which + * will give a quotient of 0x100 and a divide overflow. + * However, the invariants in this division algorithm + * are not violated, since the full number A1:23:... is + * _less_ than the quotient prefix A1:B2:... and so the + * following correction loop would have sorted it out. + * + * In this situation we set q to be the largest + * quotient we _can_ stomach (0xFF, of course). + */ + q = BIGNUM_INT_MASK; + } else { + /* Macro doesn't want an array subscript expression passed + * into it (see definition), so use a temporary. */ + BignumInt tmplo = a[i]; + DIVMOD_WORD(q, r, h, tmplo, m0); + + /* Refine our estimate of q by looking at + h:a[i]:a[i+1] / m0:m1 */ + t = MUL_WORD(m1, q); + if (t > ((BignumDblInt) r << BIGNUM_INT_BITS) + ai1) { + q--; + t -= m1; + r = (r + m0) & BIGNUM_INT_MASK; /* overflow? */ + if (r >= (BignumDblInt) m0 && + t > ((BignumDblInt) r << BIGNUM_INT_BITS) + ai1) q--; + } + } + + /* Subtract q * m from a[i...] */ + c = 0; + for (k = mlen - 1; k >= 0; k--) { + t = MUL_WORD(q, m[k]); + t += c; + c = (unsigned)(t >> BIGNUM_INT_BITS); + if ((BignumInt) t > a[i + k]) + c++; + a[i + k] -= (BignumInt) t; + } + + /* Add back m in case of borrow */ + if (c != h) { + t = 0; + for (k = mlen - 1; k >= 0; k--) { + t += m[k]; + t += a[i + k]; + a[i + k] = (BignumInt) t; + t = t >> BIGNUM_INT_BITS; + } + q--; + } + if (quot) + internal_add_shifted(quot, q, qshift + BIGNUM_INT_BITS * (alen - mlen - i)); + } +} + +/* + * Compute p % mod. + * The most significant word of mod MUST be non-zero. + * We assume that the result array is the same size as the mod array. + * We optionally write out a quotient if `quotient' is non-NULL. + * We can avoid writing out the result if `result' is NULL. + */ +void bigdivmod(void *mem_ctx, Bignum p, Bignum mod, Bignum result, Bignum quotient) +{ + BignumInt *n, *m; + int mshift; + int plen, mlen, i, j; + + /* Allocate m of size mlen, copy mod to m */ + /* We use big endian internally */ + mlen = mod[0]; + m = snewn(mem_ctx, mlen, BignumInt); + //if (!m) + //abort(); /* FIXME */ + for (j = 0; j < mlen; j++) + m[j] = mod[mod[0] - j]; + + /* Shift m left to make msb bit set */ + for (mshift = 0; mshift < BIGNUM_INT_BITS-1; mshift++) + if ((m[0] << mshift) & BIGNUM_TOP_BIT) + break; + if (mshift) { + for (i = 0; i < mlen - 1; i++) + m[i] = (m[i] << mshift) | (m[i + 1] >> (BIGNUM_INT_BITS - mshift)); + m[mlen - 1] = m[mlen - 1] << mshift; + } + + plen = p[0]; + /* Ensure plen > mlen */ + if (plen <= mlen) + plen = mlen + 1; + + /* Allocate n of size plen, copy p to n */ + n = snewn(mem_ctx, plen, BignumInt); + //if (!n) + //abort(); /* FIXME */ + for (j = 0; j < plen; j++) + n[j] = 0; + for (j = 1; j <= (int)p[0]; j++) + n[plen - j] = p[j]; + + /* Main computation */ + internal_mod(n, plen, m, mlen, quotient, mshift); + + /* Fixup result in case the modulus was shifted */ + if (mshift) { + for (i = plen - mlen - 1; i < plen - 1; i++) + n[i] = (n[i] << mshift) | (n[i + 1] >> (BIGNUM_INT_BITS - mshift)); + n[plen - 1] = n[plen - 1] << mshift; + internal_mod(n, plen, m, mlen, quotient, 0); + for (i = plen - 1; i >= plen - mlen; i--) + n[i] = (n[i] >> mshift) | (n[i - 1] << (BIGNUM_INT_BITS - mshift)); + } + + /* Copy result to buffer */ + if (result) { + for (i = 1; i <= (int)result[0]; i++) { + int j = plen - i; + result[i] = j >= 0 ? n[j] : 0; + } + } + + /* Free temporary arrays */ + for (i = 0; i < mlen; i++) + m[i] = 0; + sfree(mem_ctx, m); + for (i = 0; i < plen; i++) + n[i] = 0; + sfree(mem_ctx, n); +} + +/* + * Simple remainder. + */ +Bignum bigmod(void *mem_ctx, Bignum a, Bignum b) +{ + Bignum r = newbn(mem_ctx, b[0]); + bigdivmod(mem_ctx, a, b, r, NULL); + return r; +} + +/* + * Compute (base ^ exp) % mod. + */ +Bignum dwc_modpow(void *mem_ctx, Bignum base_in, Bignum exp, Bignum mod) +{ + BignumInt *a, *b, *n, *m; + int mshift; + int mlen, i, j; + Bignum base, result; + + /* + * The most significant word of mod needs to be non-zero. It + * should already be, but let's make sure. + */ + //assert(mod[mod[0]] != 0); + + /* + * Make sure the base is smaller than the modulus, by reducing + * it modulo the modulus if not. + */ + base = bigmod(mem_ctx, base_in, mod); + + /* Allocate m of size mlen, copy mod to m */ + /* We use big endian internally */ + mlen = mod[0]; + m = snewn(mem_ctx, mlen, BignumInt); + //if (!m) + //abort(); /* FIXME */ + for (j = 0; j < mlen; j++) + m[j] = mod[mod[0] - j]; + + /* Shift m left to make msb bit set */ + for (mshift = 0; mshift < BIGNUM_INT_BITS - 1; mshift++) + if ((m[0] << mshift) & BIGNUM_TOP_BIT) + break; + if (mshift) { + for (i = 0; i < mlen - 1; i++) + m[i] = + (m[i] << mshift) | (m[i + 1] >> + (BIGNUM_INT_BITS - mshift)); + m[mlen - 1] = m[mlen - 1] << mshift; + } + + /* Allocate n of size mlen, copy base to n */ + n = snewn(mem_ctx, mlen, BignumInt); + //if (!n) + //abort(); /* FIXME */ + i = mlen - base[0]; + for (j = 0; j < i; j++) + n[j] = 0; + for (j = 0; j < base[0]; j++) + n[i + j] = base[base[0] - j]; + + /* Allocate a and b of size 2*mlen. Set a = 1 */ + a = snewn(mem_ctx, 2 * mlen, BignumInt); + //if (!a) + //abort(); /* FIXME */ + b = snewn(mem_ctx, 2 * mlen, BignumInt); + //if (!b) + //abort(); /* FIXME */ + for (i = 0; i < 2 * mlen; i++) + a[i] = 0; + a[2 * mlen - 1] = 1; + + /* Skip leading zero bits of exp. */ + i = 0; + j = BIGNUM_INT_BITS - 1; + while (i < exp[0] && (exp[exp[0] - i] & (1 << j)) == 0) { + j--; + if (j < 0) { + i++; + j = BIGNUM_INT_BITS - 1; + } + } + + /* Main computation */ + while (i < exp[0]) { + while (j >= 0) { + internal_mul(a + mlen, a + mlen, b, mlen); + internal_mod(b, mlen * 2, m, mlen, NULL, 0); + if ((exp[exp[0] - i] & (1 << j)) != 0) { + internal_mul(b + mlen, n, a, mlen); + internal_mod(a, mlen * 2, m, mlen, NULL, 0); + } else { + BignumInt *t; + t = a; + a = b; + b = t; + } + j--; + } + i++; + j = BIGNUM_INT_BITS - 1; + } + + /* Fixup result in case the modulus was shifted */ + if (mshift) { + for (i = mlen - 1; i < 2 * mlen - 1; i++) + a[i] = + (a[i] << mshift) | (a[i + 1] >> + (BIGNUM_INT_BITS - mshift)); + a[2 * mlen - 1] = a[2 * mlen - 1] << mshift; + internal_mod(a, mlen * 2, m, mlen, NULL, 0); + for (i = 2 * mlen - 1; i >= mlen; i--) + a[i] = + (a[i] >> mshift) | (a[i - 1] << + (BIGNUM_INT_BITS - mshift)); + } + + /* Copy result to buffer */ + result = newbn(mem_ctx, mod[0]); + for (i = 0; i < mlen; i++) + result[result[0] - i] = a[i + mlen]; + while (result[0] > 1 && result[result[0]] == 0) + result[0]--; + + /* Free temporary arrays */ + for (i = 0; i < 2 * mlen; i++) + a[i] = 0; + sfree(mem_ctx, a); + for (i = 0; i < 2 * mlen; i++) + b[i] = 0; + sfree(mem_ctx, b); + for (i = 0; i < mlen; i++) + m[i] = 0; + sfree(mem_ctx, m); + for (i = 0; i < mlen; i++) + n[i] = 0; + sfree(mem_ctx, n); + + freebn(mem_ctx, base); + + return result; +} + + +#ifdef UNITTEST + +static __u32 dh_p[] = { + 96, + 0xFFFFFFFF, + 0xFFFFFFFF, + 0xA93AD2CA, + 0x4B82D120, + 0xE0FD108E, + 0x43DB5BFC, + 0x74E5AB31, + 0x08E24FA0, + 0xBAD946E2, + 0x770988C0, + 0x7A615D6C, + 0xBBE11757, + 0x177B200C, + 0x521F2B18, + 0x3EC86A64, + 0xD8760273, + 0xD98A0864, + 0xF12FFA06, + 0x1AD2EE6B, + 0xCEE3D226, + 0x4A25619D, + 0x1E8C94E0, + 0xDB0933D7, + 0xABF5AE8C, + 0xA6E1E4C7, + 0xB3970F85, + 0x5D060C7D, + 0x8AEA7157, + 0x58DBEF0A, + 0xECFB8504, + 0xDF1CBA64, + 0xA85521AB, + 0x04507A33, + 0xAD33170D, + 0x8AAAC42D, + 0x15728E5A, + 0x98FA0510, + 0x15D22618, + 0xEA956AE5, + 0x3995497C, + 0x95581718, + 0xDE2BCBF6, + 0x6F4C52C9, + 0xB5C55DF0, + 0xEC07A28F, + 0x9B2783A2, + 0x180E8603, + 0xE39E772C, + 0x2E36CE3B, + 0x32905E46, + 0xCA18217C, + 0xF1746C08, + 0x4ABC9804, + 0x670C354E, + 0x7096966D, + 0x9ED52907, + 0x208552BB, + 0x1C62F356, + 0xDCA3AD96, + 0x83655D23, + 0xFD24CF5F, + 0x69163FA8, + 0x1C55D39A, + 0x98DA4836, + 0xA163BF05, + 0xC2007CB8, + 0xECE45B3D, + 0x49286651, + 0x7C4B1FE6, + 0xAE9F2411, + 0x5A899FA5, + 0xEE386BFB, + 0xF406B7ED, + 0x0BFF5CB6, + 0xA637ED6B, + 0xF44C42E9, + 0x625E7EC6, + 0xE485B576, + 0x6D51C245, + 0x4FE1356D, + 0xF25F1437, + 0x302B0A6D, + 0xCD3A431B, + 0xEF9519B3, + 0x8E3404DD, + 0x514A0879, + 0x3B139B22, + 0x020BBEA6, + 0x8A67CC74, + 0x29024E08, + 0x80DC1CD1, + 0xC4C6628B, + 0x2168C234, + 0xC90FDAA2, + 0xFFFFFFFF, + 0xFFFFFFFF, +}; + +static __u32 dh_a[] = { + 8, + 0xdf367516, + 0x86459caa, + 0xe2d459a4, + 0xd910dae0, + 0x8a8b5e37, + 0x67ab31c6, + 0xf0b55ea9, + 0x440051d6, +}; + +static __u32 dh_b[] = { + 8, + 0xded92656, + 0xe07a048a, + 0x6fa452cd, + 0x2df89d30, + 0xc75f1b0f, + 0x8ce3578f, + 0x7980a324, + 0x5daec786, +}; + +static __u32 dh_g[] = { + 1, + 2, +}; + +int main(void) +{ + int i; + __u32 *k; + k = dwc_modpow(NULL, dh_g, dh_a, dh_p); + + printf("\n\n"); + for (i=0; i> 16; + printf("%04x %04x ", m, l); + if (!((i + 1)%13)) printf("\n"); + } + printf("\n\n"); + + if ((k[0] == 0x60) && (k[1] == 0x28e490e5) && (k[0x60] == 0x5a0d3d4e)) { + printf("PASS\n\n"); + } + else { + printf("FAIL\n\n"); + } + +} + +#endif /* UNITTEST */ + +#endif /* CONFIG_MACH_IPMATE */ + +#endif /*DWC_CRYPTOLIB */ diff --git a/drivers/usb/host/dwc_common_port/dwc_modpow.h b/drivers/usb/host/dwc_common_port/dwc_modpow.h new file mode 100644 index 0000000000000000000000000000000000000000..64f00c276e71bf2e1d58bc9e02ff64c13489dbd4 --- /dev/null +++ b/drivers/usb/host/dwc_common_port/dwc_modpow.h @@ -0,0 +1,34 @@ +/* + * dwc_modpow.h + * See dwc_modpow.c for license and changes + */ +#ifndef _DWC_MODPOW_H +#define _DWC_MODPOW_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include "dwc_os.h" + +/** @file + * + * This file defines the module exponentiation function which is only used + * internally by the DWC UWB modules for calculation of PKs during numeric + * association. The routine is taken from the PUTTY, an open source terminal + * emulator. The PUTTY License is preserved in the dwc_modpow.c file. + * + */ + +typedef uint32_t BignumInt; +typedef uint64_t BignumDblInt; +typedef BignumInt *Bignum; + +/* Compute modular exponentiaion */ +extern Bignum dwc_modpow(void *mem_ctx, Bignum base_in, Bignum exp, Bignum mod); + +#ifdef __cplusplus +} +#endif + +#endif /* _LINUX_BIGNUM_H */ diff --git a/drivers/usb/host/dwc_common_port/dwc_notifier.c b/drivers/usb/host/dwc_common_port/dwc_notifier.c new file mode 100644 index 0000000000000000000000000000000000000000..8b3772afe11d1d81bdb7cabe335f0f3bc834fb7a --- /dev/null +++ b/drivers/usb/host/dwc_common_port/dwc_notifier.c @@ -0,0 +1,319 @@ +#ifdef DWC_NOTIFYLIB + +#include "dwc_notifier.h" +#include "dwc_list.h" + +typedef struct dwc_observer { + void *observer; + dwc_notifier_callback_t callback; + void *data; + char *notification; + DWC_CIRCLEQ_ENTRY(dwc_observer) list_entry; +} observer_t; + +DWC_CIRCLEQ_HEAD(observer_queue, dwc_observer); + +typedef struct dwc_notifier { + void *mem_ctx; + void *object; + struct observer_queue observers; + DWC_CIRCLEQ_ENTRY(dwc_notifier) list_entry; +} notifier_t; + +DWC_CIRCLEQ_HEAD(notifier_queue, dwc_notifier); + +typedef struct manager { + void *mem_ctx; + void *wkq_ctx; + dwc_workq_t *wq; +// dwc_mutex_t *mutex; + struct notifier_queue notifiers; +} manager_t; + +static manager_t *manager = NULL; + +static int create_manager(void *mem_ctx, void *wkq_ctx) +{ + manager = dwc_alloc(mem_ctx, sizeof(manager_t)); + if (!manager) { + return -DWC_E_NO_MEMORY; + } + + DWC_CIRCLEQ_INIT(&manager->notifiers); + + manager->wq = dwc_workq_alloc(wkq_ctx, "DWC Notification WorkQ"); + if (!manager->wq) { + return -DWC_E_NO_MEMORY; + } + + return 0; +} + +static void free_manager(void) +{ + dwc_workq_free(manager->wq); + + /* All notifiers must have unregistered themselves before this module + * can be removed. Hitting this assertion indicates a programmer + * error. */ + DWC_ASSERT(DWC_CIRCLEQ_EMPTY(&manager->notifiers), + "Notification manager being freed before all notifiers have been removed"); + dwc_free(manager->mem_ctx, manager); +} + +#ifdef DEBUG +static void dump_manager(void) +{ + notifier_t *n; + observer_t *o; + + DWC_ASSERT(manager, "Notification manager not found"); + + DWC_DEBUG("List of all notifiers and observers:\n"); + DWC_CIRCLEQ_FOREACH(n, &manager->notifiers, list_entry) { + DWC_DEBUG("Notifier %p has observers:\n", n->object); + DWC_CIRCLEQ_FOREACH(o, &n->observers, list_entry) { + DWC_DEBUG(" %p watching %s\n", o->observer, o->notification); + } + } +} +#else +#define dump_manager(...) +#endif + +static observer_t *alloc_observer(void *mem_ctx, void *observer, char *notification, + dwc_notifier_callback_t callback, void *data) +{ + observer_t *new_observer = dwc_alloc(mem_ctx, sizeof(observer_t)); + + if (!new_observer) { + return NULL; + } + + DWC_CIRCLEQ_INIT_ENTRY(new_observer, list_entry); + new_observer->observer = observer; + new_observer->notification = notification; + new_observer->callback = callback; + new_observer->data = data; + return new_observer; +} + +static void free_observer(void *mem_ctx, observer_t *observer) +{ + dwc_free(mem_ctx, observer); +} + +static notifier_t *alloc_notifier(void *mem_ctx, void *object) +{ + notifier_t *notifier; + + if (!object) { + return NULL; + } + + notifier = dwc_alloc(mem_ctx, sizeof(notifier_t)); + if (!notifier) { + return NULL; + } + + DWC_CIRCLEQ_INIT(¬ifier->observers); + DWC_CIRCLEQ_INIT_ENTRY(notifier, list_entry); + + notifier->mem_ctx = mem_ctx; + notifier->object = object; + return notifier; +} + +static void free_notifier(notifier_t *notifier) +{ + observer_t *observer; + + DWC_CIRCLEQ_FOREACH(observer, ¬ifier->observers, list_entry) { + free_observer(notifier->mem_ctx, observer); + } + + dwc_free(notifier->mem_ctx, notifier); +} + +static notifier_t *find_notifier(void *object) +{ + notifier_t *notifier; + + DWC_ASSERT(manager, "Notification manager not found"); + + if (!object) { + return NULL; + } + + DWC_CIRCLEQ_FOREACH(notifier, &manager->notifiers, list_entry) { + if (notifier->object == object) { + return notifier; + } + } + + return NULL; +} + +int dwc_alloc_notification_manager(void *mem_ctx, void *wkq_ctx) +{ + return create_manager(mem_ctx, wkq_ctx); +} + +void dwc_free_notification_manager(void) +{ + free_manager(); +} + +dwc_notifier_t *dwc_register_notifier(void *mem_ctx, void *object) +{ + notifier_t *notifier; + + DWC_ASSERT(manager, "Notification manager not found"); + + notifier = find_notifier(object); + if (notifier) { + DWC_ERROR("Notifier %p is already registered\n", object); + return NULL; + } + + notifier = alloc_notifier(mem_ctx, object); + if (!notifier) { + return NULL; + } + + DWC_CIRCLEQ_INSERT_TAIL(&manager->notifiers, notifier, list_entry); + + DWC_INFO("Notifier %p registered", object); + dump_manager(); + + return notifier; +} + +void dwc_unregister_notifier(dwc_notifier_t *notifier) +{ + DWC_ASSERT(manager, "Notification manager not found"); + + if (!DWC_CIRCLEQ_EMPTY(¬ifier->observers)) { + observer_t *o; + + DWC_ERROR("Notifier %p has active observers when removing\n", notifier->object); + DWC_CIRCLEQ_FOREACH(o, ¬ifier->observers, list_entry) { + DWC_DEBUGC(" %p watching %s\n", o->observer, o->notification); + } + + DWC_ASSERT(DWC_CIRCLEQ_EMPTY(¬ifier->observers), + "Notifier %p has active observers when removing", notifier); + } + + DWC_CIRCLEQ_REMOVE_INIT(&manager->notifiers, notifier, list_entry); + free_notifier(notifier); + + DWC_INFO("Notifier unregistered"); + dump_manager(); +} + +/* Add an observer to observe the notifier for a particular state, event, or notification. */ +int dwc_add_observer(void *observer, void *object, char *notification, + dwc_notifier_callback_t callback, void *data) +{ + notifier_t *notifier = find_notifier(object); + observer_t *new_observer; + + if (!notifier) { + DWC_ERROR("Notifier %p is not found when adding observer\n", object); + return -DWC_E_INVALID; + } + + new_observer = alloc_observer(notifier->mem_ctx, observer, notification, callback, data); + if (!new_observer) { + return -DWC_E_NO_MEMORY; + } + + DWC_CIRCLEQ_INSERT_TAIL(¬ifier->observers, new_observer, list_entry); + + DWC_INFO("Added observer %p to notifier %p observing notification %s, callback=%p, data=%p", + observer, object, notification, callback, data); + + dump_manager(); + return 0; +} + +int dwc_remove_observer(void *observer) +{ + notifier_t *n; + + DWC_ASSERT(manager, "Notification manager not found"); + + DWC_CIRCLEQ_FOREACH(n, &manager->notifiers, list_entry) { + observer_t *o; + observer_t *o2; + + DWC_CIRCLEQ_FOREACH_SAFE(o, o2, &n->observers, list_entry) { + if (o->observer == observer) { + DWC_CIRCLEQ_REMOVE_INIT(&n->observers, o, list_entry); + DWC_INFO("Removing observer %p from notifier %p watching notification %s:", + o->observer, n->object, o->notification); + free_observer(n->mem_ctx, o); + } + } + } + + dump_manager(); + return 0; +} + +typedef struct callback_data { + void *mem_ctx; + dwc_notifier_callback_t cb; + void *observer; + void *data; + void *object; + char *notification; + void *notification_data; +} cb_data_t; + +static void cb_task(void *data) +{ + cb_data_t *cb = (cb_data_t *)data; + + cb->cb(cb->object, cb->notification, cb->observer, cb->notification_data, cb->data); + dwc_free(cb->mem_ctx, cb); +} + +void dwc_notify(dwc_notifier_t *notifier, char *notification, void *notification_data) +{ + observer_t *o; + + DWC_ASSERT(manager, "Notification manager not found"); + + DWC_CIRCLEQ_FOREACH(o, ¬ifier->observers, list_entry) { + int len = DWC_STRLEN(notification); + + if (DWC_STRLEN(o->notification) != len) { + continue; + } + + if (DWC_STRNCMP(o->notification, notification, len) == 0) { + cb_data_t *cb_data = dwc_alloc(notifier->mem_ctx, sizeof(cb_data_t)); + + if (!cb_data) { + DWC_ERROR("Failed to allocate callback data\n"); + return; + } + + cb_data->mem_ctx = notifier->mem_ctx; + cb_data->cb = o->callback; + cb_data->observer = o->observer; + cb_data->data = o->data; + cb_data->object = notifier->object; + cb_data->notification = notification; + cb_data->notification_data = notification_data; + DWC_DEBUGC("Observer found %p for notification %s\n", o->observer, notification); + DWC_WORKQ_SCHEDULE(manager->wq, cb_task, cb_data, + "Notify callback from %p for Notification %s, to observer %p", + cb_data->object, notification, cb_data->observer); + } + } +} + +#endif /* DWC_NOTIFYLIB */ diff --git a/drivers/usb/host/dwc_common_port/dwc_notifier.h b/drivers/usb/host/dwc_common_port/dwc_notifier.h new file mode 100644 index 0000000000000000000000000000000000000000..4a8cdfe565b1fcefb400706dc7bc13cf69a9d3b2 --- /dev/null +++ b/drivers/usb/host/dwc_common_port/dwc_notifier.h @@ -0,0 +1,122 @@ + +#ifndef __DWC_NOTIFIER_H__ +#define __DWC_NOTIFIER_H__ + +#ifdef __cplusplus +extern "C" { +#endif + +#include "dwc_os.h" + +/** @file + * + * A simple implementation of the Observer pattern. Any "module" can + * register as an observer or notifier. The notion of "module" is abstract and + * can mean anything used to identify either an observer or notifier. Usually + * it will be a pointer to a data structure which contains some state, ie an + * object. + * + * Before any notifiers can be added, the global notification manager must be + * brought up with dwc_alloc_notification_manager(). + * dwc_free_notification_manager() will bring it down and free all resources. + * These would typically be called upon module load and unload. The + * notification manager is a single global instance that handles all registered + * observable modules and observers so this should be done only once. + * + * A module can be observable by using Notifications to publicize some general + * information about it's state or operation. It does not care who listens, or + * even if anyone listens, or what they do with the information. The observable + * modules do not need to know any information about it's observers or their + * interface, or their state or data. + * + * Any module can register to emit Notifications. It should publish a list of + * notifications that it can emit and their behavior, such as when they will get + * triggered, and what information will be provided to the observer. Then it + * should register itself as an observable module. See dwc_register_notifier(). + * + * Any module can observe any observable, registered module, provided it has a + * handle to the other module and knows what notifications to observe. See + * dwc_add_observer(). + * + * A function of type dwc_notifier_callback_t is called whenever a notification + * is triggered with one or more observers observing it. This function is + * called in it's own process so it may sleep or block if needed. It is + * guaranteed to be called sometime after the notification has occurred and will + * be called once per each time the notification is triggered. It will NOT be + * called in the same process context used to trigger the notification. + * + * @section Limitiations + * + * Keep in mind that Notifications that can be triggered in rapid sucession may + * schedule too many processes too handle. Be aware of this limitation when + * designing to use notifications, and only add notifications for appropriate + * observable information. + * + * Also Notification callbacks are not synchronous. If you need to synchronize + * the behavior between module/observer you must use other means. And perhaps + * that will mean Notifications are not the proper solution. + */ + +struct dwc_notifier; +typedef struct dwc_notifier dwc_notifier_t; + +/** The callback function must be of this type. + * + * @param object This is the object that is being observed. + * @param notification This is the notification that was triggered. + * @param observer This is the observer + * @param notification_data This is notification-specific data that the notifier + * has included in this notification. The value of this should be published in + * the documentation of the observable module with the notifications. + * @param user_data This is any custom data that the observer provided when + * adding itself as an observer to the notification. */ +typedef void (*dwc_notifier_callback_t)(void *object, char *notification, void *observer, + void *notification_data, void *user_data); + +/** Brings up the notification manager. */ +extern int dwc_alloc_notification_manager(void *mem_ctx, void *wkq_ctx); +/** Brings down the notification manager. */ +extern void dwc_free_notification_manager(void); + +/** This function registers an observable module. A dwc_notifier_t object is + * returned to the observable module. This is an opaque object that is used by + * the observable module to trigger notifications. This object should only be + * accessible to functions that are authorized to trigger notifications for this + * module. Observers do not need this object. */ +extern dwc_notifier_t *dwc_register_notifier(void *mem_ctx, void *object); + +/** This function unregisters an observable module. All observers have to be + * removed prior to unregistration. */ +extern void dwc_unregister_notifier(dwc_notifier_t *notifier); + +/** Add a module as an observer to the observable module. The observable module + * needs to have previously registered with the notification manager. + * + * @param observer The observer module + * @param object The module to observe + * @param notification The notification to observe + * @param callback The callback function to call + * @param user_data Any additional user data to pass into the callback function */ +extern int dwc_add_observer(void *observer, void *object, char *notification, + dwc_notifier_callback_t callback, void *user_data); + +/** Removes the specified observer from all notifications that it is currently + * observing. */ +extern int dwc_remove_observer(void *observer); + +/** This function triggers a Notification. It should be called by the + * observable module, or any module or library which the observable module + * allows to trigger notification on it's behalf. Such as the dwc_cc_t. + * + * dwc_notify is a non-blocking function. Callbacks are scheduled called in + * their own process context for each trigger. Callbacks can be blocking. + * dwc_notify can be called from interrupt context if needed. + * + */ +void dwc_notify(dwc_notifier_t *notifier, char *notification, void *notification_data); + +#ifdef __cplusplus +} +#endif + +#endif /* __DWC_NOTIFIER_H__ */ diff --git a/drivers/usb/host/dwc_common_port/dwc_os.h b/drivers/usb/host/dwc_common_port/dwc_os.h new file mode 100644 index 0000000000000000000000000000000000000000..9a86d299403bd1dfdcdb6532fad702b2b65138d7 --- /dev/null +++ b/drivers/usb/host/dwc_common_port/dwc_os.h @@ -0,0 +1,1276 @@ +/* ========================================================================= + * $File: //dwh/usb_iip/dev/software/dwc_common_port_2/dwc_os.h $ + * $Revision: #14 $ + * $Date: 2010/11/04 $ + * $Change: 1621695 $ + * + * Synopsys Portability Library Software and documentation + * (hereinafter, "Software") is an Unsupported proprietary work of + * Synopsys, Inc. unless otherwise expressly agreed to in writing + * between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product + * under any End User Software License Agreement or Agreement for + * Licensed Product with Synopsys or any supplement thereto. You are + * permitted to use and redistribute this Software in source and binary + * forms, with or without modification, provided that redistributions + * of source code must retain this notice. You may not view, use, + * disclose, copy or distribute this file or any information contained + * herein except pursuant to this license grant from Synopsys. If you + * do not agree with this notice, including the disclaimer below, then + * you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" + * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL + * SYNOPSYS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE + * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================= */ +#ifndef _DWC_OS_H_ +#define _DWC_OS_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +/** @file + * + * DWC portability library, low level os-wrapper functions + * + */ + +/* These basic types need to be defined by some OS header file or custom header + * file for your specific target architecture. + * + * uint8_t, int8_t, uint16_t, int16_t, uint32_t, int32_t, uint64_t, int64_t + * + * Any custom or alternate header file must be added and enabled here. + */ + +#ifdef DWC_LINUX +# include +# ifdef CONFIG_DEBUG_MUTEXES +# include +# endif +# include +# include +# include +#endif + +#if defined(DWC_FREEBSD) || defined(DWC_NETBSD) +# include +#endif + + +/** @name Primitive Types and Values */ + +/** We define a boolean type for consistency. Can be either YES or NO */ +typedef uint8_t dwc_bool_t; +#define YES 1 +#define NO 0 + +#ifdef DWC_LINUX + +/** @name Error Codes */ +#define DWC_E_INVALID EINVAL +#define DWC_E_NO_MEMORY ENOMEM +#define DWC_E_NO_DEVICE ENODEV +#define DWC_E_NOT_SUPPORTED EOPNOTSUPP +#define DWC_E_TIMEOUT ETIMEDOUT +#define DWC_E_BUSY EBUSY +#define DWC_E_AGAIN EAGAIN +#define DWC_E_RESTART ERESTART +#define DWC_E_ABORT ECONNABORTED +#define DWC_E_SHUTDOWN ESHUTDOWN +#define DWC_E_NO_DATA ENODATA +#define DWC_E_DISCONNECT ECONNRESET +#define DWC_E_UNKNOWN EINVAL +#define DWC_E_NO_STREAM_RES ENOSR +#define DWC_E_COMMUNICATION ECOMM +#define DWC_E_OVERFLOW EOVERFLOW +#define DWC_E_PROTOCOL EPROTO +#define DWC_E_IN_PROGRESS EINPROGRESS +#define DWC_E_PIPE EPIPE +#define DWC_E_IO EIO +#define DWC_E_NO_SPACE ENOSPC + +#else + +/** @name Error Codes */ +#define DWC_E_INVALID 1001 +#define DWC_E_NO_MEMORY 1002 +#define DWC_E_NO_DEVICE 1003 +#define DWC_E_NOT_SUPPORTED 1004 +#define DWC_E_TIMEOUT 1005 +#define DWC_E_BUSY 1006 +#define DWC_E_AGAIN 1007 +#define DWC_E_RESTART 1008 +#define DWC_E_ABORT 1009 +#define DWC_E_SHUTDOWN 1010 +#define DWC_E_NO_DATA 1011 +#define DWC_E_DISCONNECT 2000 +#define DWC_E_UNKNOWN 3000 +#define DWC_E_NO_STREAM_RES 4001 +#define DWC_E_COMMUNICATION 4002 +#define DWC_E_OVERFLOW 4003 +#define DWC_E_PROTOCOL 4004 +#define DWC_E_IN_PROGRESS 4005 +#define DWC_E_PIPE 4006 +#define DWC_E_IO 4007 +#define DWC_E_NO_SPACE 4008 + +#endif + + +/** @name Tracing/Logging Functions + * + * These function provide the capability to add tracing, debugging, and error + * messages, as well exceptions as assertions. The WUDEV uses these + * extensively. These could be logged to the main console, the serial port, an + * internal buffer, etc. These functions could also be no-op if they are too + * expensive on your system. By default undefining the DEBUG macro already + * no-ops some of these functions. */ + +/** Returns non-zero if in interrupt context. */ +extern dwc_bool_t DWC_IN_IRQ(void); +#define dwc_in_irq DWC_IN_IRQ + +/** Returns "IRQ" if DWC_IN_IRQ is true. */ +static inline char *dwc_irq(void) { + return DWC_IN_IRQ() ? "IRQ" : ""; +} + +/** Returns non-zero if in bottom-half context. */ +extern dwc_bool_t DWC_IN_BH(void); +#define dwc_in_bh DWC_IN_BH + +/** Returns "BH" if DWC_IN_BH is true. */ +static inline char *dwc_bh(void) { + return DWC_IN_BH() ? "BH" : ""; +} + +/** + * A vprintf() clone. Just call vprintf if you've got it. + */ +extern void DWC_VPRINTF(char *format, va_list args); +#define dwc_vprintf DWC_VPRINTF + +/** + * A vsnprintf() clone. Just call vprintf if you've got it. + */ +extern int DWC_VSNPRINTF(char *str, int size, char *format, va_list args); +#define dwc_vsnprintf DWC_VSNPRINTF + +/** + * printf() clone. Just call printf if you've go it. + */ +extern void DWC_PRINTF(char *format, ...) +/* This provides compiler level static checking of the parameters if you're + * using GCC. */ +#ifdef __GNUC__ + __attribute__ ((format(printf, 1, 2))); +#else + ; +#endif +#define dwc_printf DWC_PRINTF + +/** + * sprintf() clone. Just call sprintf if you've got it. + */ +extern int DWC_SPRINTF(char *string, char *format, ...) +#ifdef __GNUC__ + __attribute__ ((format(printf, 2, 3))); +#else + ; +#endif +#define dwc_sprintf DWC_SPRINTF + +/** + * snprintf() clone. Just call snprintf if you've got it. + */ +extern int DWC_SNPRINTF(char *string, int size, char *format, ...) +#ifdef __GNUC__ + __attribute__ ((format(printf, 3, 4))); +#else + ; +#endif +#define dwc_snprintf DWC_SNPRINTF + +/** + * Prints a WARNING message. On systems that don't differentiate between + * warnings and regular log messages, just print it. Indicates that something + * may be wrong with the driver. Works like printf(). + * + * Use the DWC_WARN macro to call this function. + */ +extern void __DWC_WARN(char *format, ...) +#ifdef __GNUC__ + __attribute__ ((format(printf, 1, 2))); +#else + ; +#endif + +/** + * Prints an error message. On systems that don't differentiate between errors + * and regular log messages, just print it. Indicates that something went wrong + * with the driver. Works like printf(). + * + * Use the DWC_ERROR macro to call this function. + */ +extern void __DWC_ERROR(char *format, ...) +#ifdef __GNUC__ + __attribute__ ((format(printf, 1, 2))); +#else + ; +#endif + +/** + * Prints an exception error message and takes some user-defined action such as + * print out a backtrace or trigger a breakpoint. Indicates that something went + * abnormally wrong with the driver such as programmer error, or other + * exceptional condition. It should not be ignored so even on systems without + * printing capability, some action should be taken to notify the developer of + * it. Works like printf(). + */ +extern void DWC_EXCEPTION(char *format, ...) +#ifdef __GNUC__ + __attribute__ ((format(printf, 1, 2))); +#else + ; +#endif +#define dwc_exception DWC_EXCEPTION + +#ifndef DWC_OTG_DEBUG_LEV +#define DWC_OTG_DEBUG_LEV 0 +#endif + +#ifdef DEBUG +/** + * Prints out a debug message. Used for logging/trace messages. + * + * Use the DWC_DEBUG macro to call this function + */ +extern void __DWC_DEBUG(char *format, ...) +#ifdef __GNUC__ + __attribute__ ((format(printf, 1, 2))); +#else + ; +#endif +#else +#define __DWC_DEBUG printk +#endif + +/** + * Prints out a Debug message. + */ +#define DWC_DEBUG(_format, _args...) __DWC_DEBUG("DEBUG:%s:%s: " _format "\n", \ + __func__, dwc_irq(), ## _args) +#define dwc_debug DWC_DEBUG +/** + * Prints out a Debug message if enabled at compile time. + */ +#if DWC_OTG_DEBUG_LEV > 0 +#define DWC_DEBUGC(_format, _args...) DWC_DEBUG(_format, ##_args ) +#else +#define DWC_DEBUGC(_format, _args...) +#endif +#define dwc_debugc DWC_DEBUGC +/** + * Prints out an informative message. + */ +#define DWC_INFO(_format, _args...) DWC_PRINTF("INFO:%s: " _format "\n", \ + dwc_irq(), ## _args) +#define dwc_info DWC_INFO +/** + * Prints out an informative message if enabled at compile time. + */ +#if DWC_OTG_DEBUG_LEV > 1 +#define DWC_INFOC(_format, _args...) DWC_INFO(_format, ##_args ) +#else +#define DWC_INFOC(_format, _args...) +#endif +#define dwc_infoc DWC_INFOC +/** + * Prints out a warning message. + */ +#define DWC_WARN(_format, _args...) __DWC_WARN("WARN:%s:%s:%d: " _format "\n", \ + dwc_irq(), __func__, __LINE__, ## _args) +#define dwc_warn DWC_WARN +/** + * Prints out an error message. + */ +#define DWC_ERROR(_format, _args...) __DWC_ERROR("ERROR:%s:%s:%d: " _format "\n", \ + dwc_irq(), __func__, __LINE__, ## _args) +#define dwc_error DWC_ERROR + +#define DWC_PROTO_ERROR(_format, _args...) __DWC_WARN("ERROR:%s:%s:%d: " _format "\n", \ + dwc_irq(), __func__, __LINE__, ## _args) +#define dwc_proto_error DWC_PROTO_ERROR + +#ifdef DEBUG +/** Prints out a exception error message if the _expr expression fails. Disabled + * if DEBUG is not enabled. */ +#define DWC_ASSERT(_expr, _format, _args...) do { \ + if (!(_expr)) { DWC_EXCEPTION("%s:%s:%d: " _format "\n", dwc_irq(), \ + __FILE__, __LINE__, ## _args); } \ + } while (0) +#else +#define DWC_ASSERT(_x...) +#endif +#define dwc_assert DWC_ASSERT + + +/** @name Byte Ordering + * The following functions are for conversions between processor's byte ordering + * and specific ordering you want. + */ + +/** Converts 32 bit data in CPU byte ordering to little endian. */ +extern uint32_t DWC_CPU_TO_LE32(uint32_t *p); +#define dwc_cpu_to_le32 DWC_CPU_TO_LE32 + +/** Converts 32 bit data in CPU byte orderint to big endian. */ +extern uint32_t DWC_CPU_TO_BE32(uint32_t *p); +#define dwc_cpu_to_be32 DWC_CPU_TO_BE32 + +/** Converts 32 bit little endian data to CPU byte ordering. */ +extern uint32_t DWC_LE32_TO_CPU(uint32_t *p); +#define dwc_le32_to_cpu DWC_LE32_TO_CPU + +/** Converts 32 bit big endian data to CPU byte ordering. */ +extern uint32_t DWC_BE32_TO_CPU(uint32_t *p); +#define dwc_be32_to_cpu DWC_BE32_TO_CPU + +/** Converts 16 bit data in CPU byte ordering to little endian. */ +extern uint16_t DWC_CPU_TO_LE16(uint16_t *p); +#define dwc_cpu_to_le16 DWC_CPU_TO_LE16 + +/** Converts 16 bit data in CPU byte orderint to big endian. */ +extern uint16_t DWC_CPU_TO_BE16(uint16_t *p); +#define dwc_cpu_to_be16 DWC_CPU_TO_BE16 + +/** Converts 16 bit little endian data to CPU byte ordering. */ +extern uint16_t DWC_LE16_TO_CPU(uint16_t *p); +#define dwc_le16_to_cpu DWC_LE16_TO_CPU + +/** Converts 16 bit bi endian data to CPU byte ordering. */ +extern uint16_t DWC_BE16_TO_CPU(uint16_t *p); +#define dwc_be16_to_cpu DWC_BE16_TO_CPU + + +/** @name Register Read/Write + * + * The following six functions should be implemented to read/write registers of + * 32-bit and 64-bit sizes. All modules use this to read/write register values. + * The reg value is a pointer to the register calculated from the void *base + * variable passed into the driver when it is started. */ + +#ifdef DWC_LINUX +/* Linux doesn't need any extra parameters for register read/write, so we + * just throw away the IO context parameter. + */ +/** Reads the content of a 32-bit register. */ +extern uint32_t DWC_READ_REG32(uint32_t volatile *reg); +#define dwc_read_reg32(_ctx_,_reg_) DWC_READ_REG32(_reg_) + +/** Reads the content of a 64-bit register. */ +extern uint64_t DWC_READ_REG64(uint64_t volatile *reg); +#define dwc_read_reg64(_ctx_,_reg_) DWC_READ_REG64(_reg_) + +/** Writes to a 32-bit register. */ +extern void DWC_WRITE_REG32(uint32_t volatile *reg, uint32_t value); +#define dwc_write_reg32(_ctx_,_reg_,_val_) DWC_WRITE_REG32(_reg_, _val_) + +/** Writes to a 64-bit register. */ +extern void DWC_WRITE_REG64(uint64_t volatile *reg, uint64_t value); +#define dwc_write_reg64(_ctx_,_reg_,_val_) DWC_WRITE_REG64(_reg_, _val_) + +/** + * Modify bit values in a register. Using the + * algorithm: (reg_contents & ~clear_mask) | set_mask. + */ +extern void DWC_MODIFY_REG32(uint32_t volatile *reg, uint32_t clear_mask, uint32_t set_mask); +#define dwc_modify_reg32(_ctx_,_reg_,_cmsk_,_smsk_) DWC_MODIFY_REG32(_reg_,_cmsk_,_smsk_) +extern void DWC_MODIFY_REG64(uint64_t volatile *reg, uint64_t clear_mask, uint64_t set_mask); +#define dwc_modify_reg64(_ctx_,_reg_,_cmsk_,_smsk_) DWC_MODIFY_REG64(_reg_,_cmsk_,_smsk_) + +#endif /* DWC_LINUX */ + +#if defined(DWC_FREEBSD) || defined(DWC_NETBSD) +typedef struct dwc_ioctx { + struct device *dev; + bus_space_tag_t iot; + bus_space_handle_t ioh; +} dwc_ioctx_t; + +/** BSD needs two extra parameters for register read/write, so we pass + * them in using the IO context parameter. + */ +/** Reads the content of a 32-bit register. */ +extern uint32_t DWC_READ_REG32(void *io_ctx, uint32_t volatile *reg); +#define dwc_read_reg32 DWC_READ_REG32 + +/** Reads the content of a 64-bit register. */ +extern uint64_t DWC_READ_REG64(void *io_ctx, uint64_t volatile *reg); +#define dwc_read_reg64 DWC_READ_REG64 + +/** Writes to a 32-bit register. */ +extern void DWC_WRITE_REG32(void *io_ctx, uint32_t volatile *reg, uint32_t value); +#define dwc_write_reg32 DWC_WRITE_REG32 + +/** Writes to a 64-bit register. */ +extern void DWC_WRITE_REG64(void *io_ctx, uint64_t volatile *reg, uint64_t value); +#define dwc_write_reg64 DWC_WRITE_REG64 + +/** + * Modify bit values in a register. Using the + * algorithm: (reg_contents & ~clear_mask) | set_mask. + */ +extern void DWC_MODIFY_REG32(void *io_ctx, uint32_t volatile *reg, uint32_t clear_mask, uint32_t set_mask); +#define dwc_modify_reg32 DWC_MODIFY_REG32 +extern void DWC_MODIFY_REG64(void *io_ctx, uint64_t volatile *reg, uint64_t clear_mask, uint64_t set_mask); +#define dwc_modify_reg64 DWC_MODIFY_REG64 + +#endif /* DWC_FREEBSD || DWC_NETBSD */ + +/** @cond */ + +/** @name Some convenience MACROS used internally. Define DWC_DEBUG_REGS to log the + * register writes. */ + +#ifdef DWC_LINUX + +# ifdef DWC_DEBUG_REGS + +#define dwc_define_read_write_reg_n(_reg,_container_type) \ +static inline uint32_t dwc_read_##_reg##_n(_container_type *container, int num) { \ + return DWC_READ_REG32(&container->regs->_reg[num]); \ +} \ +static inline void dwc_write_##_reg##_n(_container_type *container, int num, uint32_t data) { \ + DWC_DEBUG("WRITING %8s[%d]: %p: %08x", #_reg, num, \ + &(((uint32_t*)container->regs->_reg)[num]), data); \ + DWC_WRITE_REG32(&(((uint32_t*)container->regs->_reg)[num]), data); \ +} + +#define dwc_define_read_write_reg(_reg,_container_type) \ +static inline uint32_t dwc_read_##_reg(_container_type *container) { \ + return DWC_READ_REG32(&container->regs->_reg); \ +} \ +static inline void dwc_write_##_reg(_container_type *container, uint32_t data) { \ + DWC_DEBUG("WRITING %11s: %p: %08x", #_reg, &container->regs->_reg, data); \ + DWC_WRITE_REG32(&container->regs->_reg, data); \ +} + +# else /* DWC_DEBUG_REGS */ + +#define dwc_define_read_write_reg_n(_reg,_container_type) \ +static inline uint32_t dwc_read_##_reg##_n(_container_type *container, int num) { \ + return DWC_READ_REG32(&container->regs->_reg[num]); \ +} \ +static inline void dwc_write_##_reg##_n(_container_type *container, int num, uint32_t data) { \ + DWC_WRITE_REG32(&(((uint32_t*)container->regs->_reg)[num]), data); \ +} + +#define dwc_define_read_write_reg(_reg,_container_type) \ +static inline uint32_t dwc_read_##_reg(_container_type *container) { \ + return DWC_READ_REG32(&container->regs->_reg); \ +} \ +static inline void dwc_write_##_reg(_container_type *container, uint32_t data) { \ + DWC_WRITE_REG32(&container->regs->_reg, data); \ +} + +# endif /* DWC_DEBUG_REGS */ + +#endif /* DWC_LINUX */ + +#if defined(DWC_FREEBSD) || defined(DWC_NETBSD) + +# ifdef DWC_DEBUG_REGS + +#define dwc_define_read_write_reg_n(_reg,_container_type) \ +static inline uint32_t dwc_read_##_reg##_n(void *io_ctx, _container_type *container, int num) { \ + return DWC_READ_REG32(io_ctx, &container->regs->_reg[num]); \ +} \ +static inline void dwc_write_##_reg##_n(void *io_ctx, _container_type *container, int num, uint32_t data) { \ + DWC_DEBUG("WRITING %8s[%d]: %p: %08x", #_reg, num, \ + &(((uint32_t*)container->regs->_reg)[num]), data); \ + DWC_WRITE_REG32(io_ctx, &(((uint32_t*)container->regs->_reg)[num]), data); \ +} + +#define dwc_define_read_write_reg(_reg,_container_type) \ +static inline uint32_t dwc_read_##_reg(void *io_ctx, _container_type *container) { \ + return DWC_READ_REG32(io_ctx, &container->regs->_reg); \ +} \ +static inline void dwc_write_##_reg(void *io_ctx, _container_type *container, uint32_t data) { \ + DWC_DEBUG("WRITING %11s: %p: %08x", #_reg, &container->regs->_reg, data); \ + DWC_WRITE_REG32(io_ctx, &container->regs->_reg, data); \ +} + +# else /* DWC_DEBUG_REGS */ + +#define dwc_define_read_write_reg_n(_reg,_container_type) \ +static inline uint32_t dwc_read_##_reg##_n(void *io_ctx, _container_type *container, int num) { \ + return DWC_READ_REG32(io_ctx, &container->regs->_reg[num]); \ +} \ +static inline void dwc_write_##_reg##_n(void *io_ctx, _container_type *container, int num, uint32_t data) { \ + DWC_WRITE_REG32(io_ctx, &(((uint32_t*)container->regs->_reg)[num]), data); \ +} + +#define dwc_define_read_write_reg(_reg,_container_type) \ +static inline uint32_t dwc_read_##_reg(void *io_ctx, _container_type *container) { \ + return DWC_READ_REG32(io_ctx, &container->regs->_reg); \ +} \ +static inline void dwc_write_##_reg(void *io_ctx, _container_type *container, uint32_t data) { \ + DWC_WRITE_REG32(io_ctx, &container->regs->_reg, data); \ +} + +# endif /* DWC_DEBUG_REGS */ + +#endif /* DWC_FREEBSD || DWC_NETBSD */ + +/** @endcond */ + + +#ifdef DWC_CRYPTOLIB +/** @name Crypto Functions + * + * These are the low-level cryptographic functions used by the driver. */ + +/** Perform AES CBC */ +extern int DWC_AES_CBC(uint8_t *message, uint32_t messagelen, uint8_t *key, uint32_t keylen, uint8_t iv[16], uint8_t *out); +#define dwc_aes_cbc DWC_AES_CBC + +/** Fill the provided buffer with random bytes. These should be cryptographic grade random numbers. */ +extern void DWC_RANDOM_BYTES(uint8_t *buffer, uint32_t length); +#define dwc_random_bytes DWC_RANDOM_BYTES + +/** Perform the SHA-256 hash function */ +extern int DWC_SHA256(uint8_t *message, uint32_t len, uint8_t *out); +#define dwc_sha256 DWC_SHA256 + +/** Calculated the HMAC-SHA256 */ +extern int DWC_HMAC_SHA256(uint8_t *message, uint32_t messagelen, uint8_t *key, uint32_t keylen, uint8_t *out); +#define dwc_hmac_sha256 DWC_HMAC_SHA256 + +#endif /* DWC_CRYPTOLIB */ + + +/** @name Memory Allocation + * + * These function provide access to memory allocation. There are only 2 DMA + * functions and 3 Regular memory functions that need to be implemented. None + * of the memory debugging routines need to be implemented. The allocation + * routines all ZERO the contents of the memory. + * + * Defining DWC_DEBUG_MEMORY turns on memory debugging and statistic gathering. + * This checks for memory leaks, keeping track of alloc/free pairs. It also + * keeps track of how much memory the driver is using at any given time. */ + +#define DWC_PAGE_SIZE 4096 +#define DWC_PAGE_OFFSET(addr) (((uint32_t)addr) & 0xfff) +#define DWC_PAGE_ALIGNED(addr) ((((uint32_t)addr) & 0xfff) == 0) + +#define DWC_INVALID_DMA_ADDR 0x0 + +#ifdef DWC_LINUX +/** Type for a DMA address */ +typedef dma_addr_t dwc_dma_t; +#endif + +#if defined(DWC_FREEBSD) || defined(DWC_NETBSD) +typedef bus_addr_t dwc_dma_t; +#endif + +#ifdef DWC_FREEBSD +typedef struct dwc_dmactx { + struct device *dev; + bus_dma_tag_t dma_tag; + bus_dmamap_t dma_map; + bus_addr_t dma_paddr; + void *dma_vaddr; +} dwc_dmactx_t; +#endif + +#ifdef DWC_NETBSD +typedef struct dwc_dmactx { + struct device *dev; + bus_dma_tag_t dma_tag; + bus_dmamap_t dma_map; + bus_dma_segment_t segs[1]; + int nsegs; + bus_addr_t dma_paddr; + void *dma_vaddr; +} dwc_dmactx_t; +#endif + +/* @todo these functions will be added in the future */ +#if 0 +/** + * Creates a DMA pool from which you can allocate DMA buffers. Buffers + * allocated from this pool will be guaranteed to meet the size, alignment, and + * boundary requirements specified. + * + * @param[in] size Specifies the size of the buffers that will be allocated from + * this pool. + * @param[in] align Specifies the byte alignment requirements of the buffers + * allocated from this pool. Must be a power of 2. + * @param[in] boundary Specifies the N-byte boundary that buffers allocated from + * this pool must not cross. + * + * @returns A pointer to an internal opaque structure which is not to be + * accessed outside of these library functions. Use this handle to specify + * which pools to allocate/free DMA buffers from and also to destroy the pool, + * when you are done with it. + */ +extern dwc_pool_t *DWC_DMA_POOL_CREATE(uint32_t size, uint32_t align, uint32_t boundary); + +/** + * Destroy a DMA pool. All buffers allocated from that pool must be freed first. + */ +extern void DWC_DMA_POOL_DESTROY(dwc_pool_t *pool); + +/** + * Allocate a buffer from the specified DMA pool and zeros its contents. + */ +extern void *DWC_DMA_POOL_ALLOC(dwc_pool_t *pool, uint64_t *dma_addr); + +/** + * Free a previously allocated buffer from the DMA pool. + */ +extern void DWC_DMA_POOL_FREE(dwc_pool_t *pool, void *vaddr, void *daddr); +#endif + +/** Allocates a DMA capable buffer and zeroes its contents. */ +extern void *__DWC_DMA_ALLOC(void *dma_ctx, uint32_t size, dwc_dma_t *dma_addr); + +/** Allocates a DMA capable buffer and zeroes its contents in atomic contest */ +extern void *__DWC_DMA_ALLOC_ATOMIC(void *dma_ctx, uint32_t size, dwc_dma_t *dma_addr); + +/** Frees a previously allocated buffer. */ +extern void __DWC_DMA_FREE(void *dma_ctx, uint32_t size, void *virt_addr, dwc_dma_t dma_addr); + +/** Allocates a block of memory and zeroes its contents. */ +extern void *__DWC_ALLOC(void *mem_ctx, uint32_t size); + +/** Allocates a block of memory and zeroes its contents, in an atomic manner + * which can be used inside interrupt context. The size should be sufficiently + * small, a few KB at most, such that failures are not likely to occur. Can just call + * __DWC_ALLOC if it is atomic. */ +extern void *__DWC_ALLOC_ATOMIC(void *mem_ctx, uint32_t size); + +/** Frees a previously allocated buffer. */ +extern void __DWC_FREE(void *mem_ctx, void *addr); + +#ifndef DWC_DEBUG_MEMORY + +#define DWC_ALLOC(_size_) __DWC_ALLOC(NULL, _size_) +#define DWC_ALLOC_ATOMIC(_size_) __DWC_ALLOC_ATOMIC(NULL, _size_) +#define DWC_FREE(_addr_) __DWC_FREE(NULL, _addr_) + +# ifdef DWC_LINUX +#define DWC_DMA_ALLOC(_dev, _size_, _dma_) __DWC_DMA_ALLOC(_dev, _size_, _dma_) +#define DWC_DMA_ALLOC_ATOMIC(_dev, _size_, _dma_) __DWC_DMA_ALLOC_ATOMIC(_dev, _size_, _dma_) +#define DWC_DMA_FREE(_dev, _size_,_virt_, _dma_) __DWC_DMA_FREE(_dev, _size_, _virt_, _dma_) +# endif + +# if defined(DWC_FREEBSD) || defined(DWC_NETBSD) +#define DWC_DMA_ALLOC __DWC_DMA_ALLOC +#define DWC_DMA_FREE __DWC_DMA_FREE +# endif +extern void *dwc_dma_alloc_atomic_debug(uint32_t size, dwc_dma_t *dma_addr, char const *func, int line); + +#else /* DWC_DEBUG_MEMORY */ + +extern void *dwc_alloc_debug(void *mem_ctx, uint32_t size, char const *func, int line); +extern void *dwc_alloc_atomic_debug(void *mem_ctx, uint32_t size, char const *func, int line); +extern void dwc_free_debug(void *mem_ctx, void *addr, char const *func, int line); +extern void *dwc_dma_alloc_debug(void *dma_ctx, uint32_t size, dwc_dma_t *dma_addr, + char const *func, int line); +extern void *dwc_dma_alloc_atomic_debug(void *dma_ctx, uint32_t size, dwc_dma_t *dma_addr, + char const *func, int line); +extern void dwc_dma_free_debug(void *dma_ctx, uint32_t size, void *virt_addr, + dwc_dma_t dma_addr, char const *func, int line); + +extern int dwc_memory_debug_start(void *mem_ctx); +extern void dwc_memory_debug_stop(void); +extern void dwc_memory_debug_report(void); + +#define DWC_ALLOC(_size_) dwc_alloc_debug(NULL, _size_, __func__, __LINE__) +#define DWC_ALLOC_ATOMIC(_size_) dwc_alloc_atomic_debug(NULL, _size_, \ + __func__, __LINE__) +#define DWC_FREE(_addr_) dwc_free_debug(NULL, _addr_, __func__, __LINE__) + +# ifdef DWC_LINUX +#define DWC_DMA_ALLOC(_dev, _size_, _dma_) \ + dwc_dma_alloc_debug(_dev, _size_, _dma_, __func__, __LINE__) +#define DWC_DMA_ALLOC_ATOMIC(_dev, _size_, _dma_) \ + dwc_dma_alloc_atomic_debug(_dev, _size_, _dma_, __func__, __LINE__) +#define DWC_DMA_FREE(_dev, _size_, _virt_, _dma_) \ + dwc_dma_free_debug(_dev, _size_, _virt_, _dma_, __func__, __LINE__) +# endif + +# if defined(DWC_FREEBSD) || defined(DWC_NETBSD) +#define DWC_DMA_ALLOC(_ctx_,_size_,_dma_) dwc_dma_alloc_debug(_ctx_, _size_, \ + _dma_, __func__, __LINE__) +#define DWC_DMA_FREE(_ctx_,_size_,_virt_,_dma_) dwc_dma_free_debug(_ctx_, _size_, \ + _virt_, _dma_, __func__, __LINE__) +# endif + +#endif /* DWC_DEBUG_MEMORY */ + +#define dwc_alloc(_ctx_,_size_) DWC_ALLOC(_size_) +#define dwc_alloc_atomic(_ctx_,_size_) DWC_ALLOC_ATOMIC(_size_) +#define dwc_free(_ctx_,_addr_) DWC_FREE(_addr_) + +#ifdef DWC_LINUX +/* Linux doesn't need any extra parameters for DMA buffer allocation, so we + * just throw away the DMA context parameter. + */ +#define dwc_dma_alloc(_ctx_,_size_,_dma_) DWC_DMA_ALLOC(_size_, _dma_) +#define dwc_dma_alloc_atomic(_ctx_,_size_,_dma_) DWC_DMA_ALLOC_ATOMIC(_size_, _dma_) +#define dwc_dma_free(_ctx_,_size_,_virt_,_dma_) DWC_DMA_FREE(_size_, _virt_, _dma_) +#endif + +#if defined(DWC_FREEBSD) || defined(DWC_NETBSD) +/** BSD needs several extra parameters for DMA buffer allocation, so we pass + * them in using the DMA context parameter. + */ +#define dwc_dma_alloc DWC_DMA_ALLOC +#define dwc_dma_free DWC_DMA_FREE +#endif + + +/** @name Memory and String Processing */ + +/** memset() clone */ +extern void *DWC_MEMSET(void *dest, uint8_t byte, uint32_t size); +#define dwc_memset DWC_MEMSET + +/** memcpy() clone */ +extern void *DWC_MEMCPY(void *dest, void const *src, uint32_t size); +#define dwc_memcpy DWC_MEMCPY + +/** memmove() clone */ +extern void *DWC_MEMMOVE(void *dest, void *src, uint32_t size); +#define dwc_memmove DWC_MEMMOVE + +/** memcmp() clone */ +extern int DWC_MEMCMP(void *m1, void *m2, uint32_t size); +#define dwc_memcmp DWC_MEMCMP + +/** strcmp() clone */ +extern int DWC_STRCMP(void *s1, void *s2); +#define dwc_strcmp DWC_STRCMP + +/** strncmp() clone */ +extern int DWC_STRNCMP(void *s1, void *s2, uint32_t size); +#define dwc_strncmp DWC_STRNCMP + +/** strlen() clone, for NULL terminated ASCII strings */ +extern int DWC_STRLEN(char const *str); +#define dwc_strlen DWC_STRLEN + +/** strcpy() clone, for NULL terminated ASCII strings */ +extern char *DWC_STRCPY(char *to, const char *from); +#define dwc_strcpy DWC_STRCPY + +/** strdup() clone. If you wish to use memory allocation debugging, this + * implementation of strdup should use the DWC_* memory routines instead of + * calling a predefined strdup. Otherwise the memory allocated by this routine + * will not be seen by the debugging routines. */ +extern char *DWC_STRDUP(char const *str); +#define dwc_strdup(_ctx_,_str_) DWC_STRDUP(_str_) + +/** NOT an atoi() clone. Read the description carefully. Returns an integer + * converted from the string str in base 10 unless the string begins with a "0x" + * in which case it is base 16. String must be a NULL terminated sequence of + * ASCII characters and may optionally begin with whitespace, a + or -, and a + * "0x" prefix if base 16. The remaining characters must be valid digits for + * the number and end with a NULL character. If any invalid characters are + * encountered or it returns with a negative error code and the results of the + * conversion are undefined. On sucess it returns 0. Overflow conditions are + * undefined. An example implementation using atoi() can be referenced from the + * Linux implementation. */ +extern int DWC_ATOI(const char *str, int32_t *value); +#define dwc_atoi DWC_ATOI + +/** Same as above but for unsigned. */ +extern int DWC_ATOUI(const char *str, uint32_t *value); +#define dwc_atoui DWC_ATOUI + +#ifdef DWC_UTFLIB +/** This routine returns a UTF16LE unicode encoded string from a UTF8 string. */ +extern int DWC_UTF8_TO_UTF16LE(uint8_t const *utf8string, uint16_t *utf16string, unsigned len); +#define dwc_utf8_to_utf16le DWC_UTF8_TO_UTF16LE +#endif + + +/** @name Wait queues + * + * Wait queues provide a means of synchronizing between threads or processes. A + * process can block on a waitq if some condition is not true, waiting for it to + * become true. When the waitq is triggered all waiting process will get + * unblocked and the condition will be check again. Waitqs should be triggered + * every time a condition can potentially change.*/ +struct dwc_waitq; + +/** Type for a waitq */ +typedef struct dwc_waitq dwc_waitq_t; + +/** The type of waitq condition callback function. This is called every time + * condition is evaluated. */ +typedef int (*dwc_waitq_condition_t)(void *data); + +/** Allocate a waitq */ +extern dwc_waitq_t *DWC_WAITQ_ALLOC(void); +#define dwc_waitq_alloc(_ctx_) DWC_WAITQ_ALLOC() + +/** Free a waitq */ +extern void DWC_WAITQ_FREE(dwc_waitq_t *wq); +#define dwc_waitq_free DWC_WAITQ_FREE + +/** Check the condition and if it is false, block on the waitq. When unblocked, check the + * condition again. The function returns when the condition becomes true. The return value + * is 0 on condition true, DWC_WAITQ_ABORTED on abort or killed, or DWC_WAITQ_UNKNOWN on error. */ +extern int32_t DWC_WAITQ_WAIT(dwc_waitq_t *wq, dwc_waitq_condition_t cond, void *data); +#define dwc_waitq_wait DWC_WAITQ_WAIT + +/** Check the condition and if it is false, block on the waitq. When unblocked, + * check the condition again. The function returns when the condition become + * true or the timeout has passed. The return value is 0 on condition true or + * DWC_TIMED_OUT on timeout, or DWC_WAITQ_ABORTED, or DWC_WAITQ_UNKNOWN on + * error. */ +extern int32_t DWC_WAITQ_WAIT_TIMEOUT(dwc_waitq_t *wq, dwc_waitq_condition_t cond, + void *data, int32_t msecs); +#define dwc_waitq_wait_timeout DWC_WAITQ_WAIT_TIMEOUT + +/** Trigger a waitq, unblocking all processes. This should be called whenever a condition + * has potentially changed. */ +extern void DWC_WAITQ_TRIGGER(dwc_waitq_t *wq); +#define dwc_waitq_trigger DWC_WAITQ_TRIGGER + +/** Unblock all processes waiting on the waitq with an ABORTED result. */ +extern void DWC_WAITQ_ABORT(dwc_waitq_t *wq); +#define dwc_waitq_abort DWC_WAITQ_ABORT + + +/** @name Threads + * + * A thread must be explicitly stopped. It must check DWC_THREAD_SHOULD_STOP + * whenever it is woken up, and then return. The DWC_THREAD_STOP function + * returns the value from the thread. + */ + +struct dwc_thread; + +/** Type for a thread */ +typedef struct dwc_thread dwc_thread_t; + +/** The thread function */ +typedef int (*dwc_thread_function_t)(void *data); + +/** Create a thread and start it running the thread_function. Returns a handle + * to the thread */ +extern dwc_thread_t *DWC_THREAD_RUN(dwc_thread_function_t func, char *name, void *data); +#define dwc_thread_run(_ctx_,_func_,_name_,_data_) DWC_THREAD_RUN(_func_, _name_, _data_) + +/** Stops a thread. Return the value returned by the thread. Or will return + * DWC_ABORT if the thread never started. */ +extern int DWC_THREAD_STOP(dwc_thread_t *thread); +#define dwc_thread_stop DWC_THREAD_STOP + +/** Signifies to the thread that it must stop. */ +#ifdef DWC_LINUX +/* Linux doesn't need any parameters for kthread_should_stop() */ +extern dwc_bool_t DWC_THREAD_SHOULD_STOP(void); +#define dwc_thread_should_stop(_thrd_) DWC_THREAD_SHOULD_STOP() + +/* No thread_exit function in Linux */ +#define dwc_thread_exit(_thrd_) +#endif + +#if defined(DWC_FREEBSD) || defined(DWC_NETBSD) +/** BSD needs the thread pointer for kthread_suspend_check() */ +extern dwc_bool_t DWC_THREAD_SHOULD_STOP(dwc_thread_t *thread); +#define dwc_thread_should_stop DWC_THREAD_SHOULD_STOP + +/** The thread must call this to exit. */ +extern void DWC_THREAD_EXIT(dwc_thread_t *thread); +#define dwc_thread_exit DWC_THREAD_EXIT +#endif + + +/** @name Work queues + * + * Workqs are used to queue a callback function to be called at some later time, + * in another thread. */ +struct dwc_workq; + +/** Type for a workq */ +typedef struct dwc_workq dwc_workq_t; + +/** The type of the callback function to be called. */ +typedef void (*dwc_work_callback_t)(void *data); + +/** Allocate a workq */ +extern dwc_workq_t *DWC_WORKQ_ALLOC(char *name); +#define dwc_workq_alloc(_ctx_,_name_) DWC_WORKQ_ALLOC(_name_) + +/** Free a workq. All work must be completed before being freed. */ +extern void DWC_WORKQ_FREE(dwc_workq_t *workq); +#define dwc_workq_free DWC_WORKQ_FREE + +/** Schedule a callback on the workq, passing in data. The function will be + * scheduled at some later time. */ +extern void DWC_WORKQ_SCHEDULE(dwc_workq_t *workq, dwc_work_callback_t cb, + void *data, char *format, ...) +#ifdef __GNUC__ + __attribute__ ((format(printf, 4, 5))); +#else + ; +#endif +#define dwc_workq_schedule DWC_WORKQ_SCHEDULE + +/** Schedule a callback on the workq, that will be called until at least + * given number miliseconds have passed. */ +extern void DWC_WORKQ_SCHEDULE_DELAYED(dwc_workq_t *workq, dwc_work_callback_t cb, + void *data, uint32_t time, char *format, ...) +#ifdef __GNUC__ + __attribute__ ((format(printf, 5, 6))); +#else + ; +#endif +#define dwc_workq_schedule_delayed DWC_WORKQ_SCHEDULE_DELAYED + +/** The number of processes in the workq */ +extern int DWC_WORKQ_PENDING(dwc_workq_t *workq); +#define dwc_workq_pending DWC_WORKQ_PENDING + +/** Blocks until all the work in the workq is complete or timed out. Returns < + * 0 on timeout. */ +extern int DWC_WORKQ_WAIT_WORK_DONE(dwc_workq_t *workq, int timeout); +#define dwc_workq_wait_work_done DWC_WORKQ_WAIT_WORK_DONE + + +/** @name Tasklets + * + */ +struct dwc_tasklet; + +/** Type for a tasklet */ +typedef struct dwc_tasklet dwc_tasklet_t; + +/** The type of the callback function to be called */ +typedef void (*dwc_tasklet_callback_t)(void *data); + +/** Allocates a tasklet */ +extern dwc_tasklet_t *DWC_TASK_ALLOC(char *name, dwc_tasklet_callback_t cb, void *data); +#define dwc_task_alloc(_ctx_,_name_,_cb_,_data_) DWC_TASK_ALLOC(_name_, _cb_, _data_) + +/** Frees a tasklet */ +extern void DWC_TASK_FREE(dwc_tasklet_t *task); +#define dwc_task_free DWC_TASK_FREE + +/** Schedules a tasklet to run */ +extern void DWC_TASK_SCHEDULE(dwc_tasklet_t *task); +#define dwc_task_schedule DWC_TASK_SCHEDULE + +extern void DWC_TASK_HI_SCHEDULE(dwc_tasklet_t *task); +#define dwc_task_hi_schedule DWC_TASK_HI_SCHEDULE + +/** @name Timer + * + * Callbacks must be small and atomic. + */ +struct dwc_timer; + +/** Type for a timer */ +typedef struct dwc_timer dwc_timer_t; + +/** The type of the callback function to be called */ +typedef void (*dwc_timer_callback_t)(void *data); + +/** Allocates a timer */ +extern dwc_timer_t *DWC_TIMER_ALLOC(char *name, dwc_timer_callback_t cb, void *data); +#define dwc_timer_alloc(_ctx_,_name_,_cb_,_data_) DWC_TIMER_ALLOC(_name_,_cb_,_data_) + +/** Frees a timer */ +extern void DWC_TIMER_FREE(dwc_timer_t *timer); +#define dwc_timer_free DWC_TIMER_FREE + +/** Schedules the timer to run at time ms from now. And will repeat at every + * repeat_interval msec therafter + * + * Modifies a timer that is still awaiting execution to a new expiration time. + * The mod_time is added to the old time. */ +extern void DWC_TIMER_SCHEDULE(dwc_timer_t *timer, uint32_t time); +#define dwc_timer_schedule DWC_TIMER_SCHEDULE + +/** Disables the timer from execution. */ +extern void DWC_TIMER_CANCEL(dwc_timer_t *timer); +#define dwc_timer_cancel DWC_TIMER_CANCEL + + +/** @name Spinlocks + * + * These locks are used when the work between the lock/unlock is atomic and + * short. Interrupts are also disabled during the lock/unlock and thus they are + * suitable to lock between interrupt/non-interrupt context. They also lock + * between processes if you have multiple CPUs or Preemption. If you don't have + * multiple CPUS or Preemption, then the you can simply implement the + * DWC_SPINLOCK and DWC_SPINUNLOCK to disable and enable interrupts. Because + * the work between the lock/unlock is atomic, the process context will never + * change, and so you never have to lock between processes. */ + +struct dwc_spinlock; + +/** Type for a spinlock */ +typedef struct dwc_spinlock dwc_spinlock_t; + +/** Type for the 'flags' argument to spinlock funtions */ +typedef unsigned long dwc_irqflags_t; + +/** Returns an initialized lock variable. This function should allocate and + * initialize the OS-specific data structure used for locking. This data + * structure is to be used for the DWC_LOCK and DWC_UNLOCK functions and should + * be freed by the DWC_FREE_LOCK when it is no longer used. + * + * For Linux Spinlock Debugging make it macro because the debugging routines use + * the symbol name to determine recursive locking. Using a wrapper function + * makes it falsely think recursive locking occurs. */ +#if defined(DWC_LINUX) && defined(CONFIG_DEBUG_SPINLOCK) +#define DWC_SPINLOCK_ALLOC_LINUX_DEBUG(lock) ({ \ + lock = DWC_ALLOC(sizeof(spinlock_t)); \ + if (lock) { \ + spin_lock_init((spinlock_t *)lock); \ + } \ +}) +#else +extern dwc_spinlock_t *DWC_SPINLOCK_ALLOC(void); +#define dwc_spinlock_alloc(_ctx_) DWC_SPINLOCK_ALLOC() +#endif + +/** Frees an initialized lock variable. */ +extern void DWC_SPINLOCK_FREE(dwc_spinlock_t *lock); +#define dwc_spinlock_free(_ctx_,_lock_) DWC_SPINLOCK_FREE(_lock_) + +/** Disables interrupts and blocks until it acquires the lock. + * + * @param lock Pointer to the spinlock. + * @param flags Unsigned long for irq flags storage. + */ +extern void DWC_SPINLOCK_IRQSAVE(dwc_spinlock_t *lock, dwc_irqflags_t *flags); +#define dwc_spinlock_irqsave DWC_SPINLOCK_IRQSAVE + +/** Re-enables the interrupt and releases the lock. + * + * @param lock Pointer to the spinlock. + * @param flags Unsigned long for irq flags storage. Must be the same as was + * passed into DWC_LOCK. + */ +extern void DWC_SPINUNLOCK_IRQRESTORE(dwc_spinlock_t *lock, dwc_irqflags_t flags); +#define dwc_spinunlock_irqrestore DWC_SPINUNLOCK_IRQRESTORE + +/** Blocks until it acquires the lock. + * + * @param lock Pointer to the spinlock. + */ +extern void DWC_SPINLOCK(dwc_spinlock_t *lock); +#define dwc_spinlock DWC_SPINLOCK + +/** Releases the lock. + * + * @param lock Pointer to the spinlock. + */ +extern void DWC_SPINUNLOCK(dwc_spinlock_t *lock); +#define dwc_spinunlock DWC_SPINUNLOCK + + +/** @name Mutexes + * + * Unlike spinlocks Mutexes lock only between processes and the work between the + * lock/unlock CAN block, therefore it CANNOT be called from interrupt context. + */ + +struct dwc_mutex; + +/** Type for a mutex */ +typedef struct dwc_mutex dwc_mutex_t; + +/* For Linux Mutex Debugging make it inline because the debugging routines use + * the symbol to determine recursive locking. This makes it falsely think + * recursive locking occurs. */ +#if defined(DWC_LINUX) && defined(CONFIG_DEBUG_MUTEXES) +#define DWC_MUTEX_ALLOC_LINUX_DEBUG(__mutexp) ({ \ + __mutexp = (dwc_mutex_t *)DWC_ALLOC(sizeof(struct mutex)); \ + mutex_init((struct mutex *)__mutexp); \ +}) +#endif + +/** Allocate a mutex */ +extern dwc_mutex_t *DWC_MUTEX_ALLOC(void); +#define dwc_mutex_alloc(_ctx_) DWC_MUTEX_ALLOC() + +/* For memory leak debugging when using Linux Mutex Debugging */ +#if defined(DWC_LINUX) && defined(CONFIG_DEBUG_MUTEXES) +#define DWC_MUTEX_FREE(__mutexp) do { \ + mutex_destroy((struct mutex *)__mutexp); \ + DWC_FREE(__mutexp); \ +} while(0) +#else +/** Free a mutex */ +extern void DWC_MUTEX_FREE(dwc_mutex_t *mutex); +#define dwc_mutex_free(_ctx_,_mutex_) DWC_MUTEX_FREE(_mutex_) +#endif + +/** Lock a mutex */ +extern void DWC_MUTEX_LOCK(dwc_mutex_t *mutex); +#define dwc_mutex_lock DWC_MUTEX_LOCK + +/** Non-blocking lock returns 1 on successful lock. */ +extern int DWC_MUTEX_TRYLOCK(dwc_mutex_t *mutex); +#define dwc_mutex_trylock DWC_MUTEX_TRYLOCK + +/** Unlock a mutex */ +extern void DWC_MUTEX_UNLOCK(dwc_mutex_t *mutex); +#define dwc_mutex_unlock DWC_MUTEX_UNLOCK + + +/** @name Time */ + +/** Microsecond delay. + * + * @param usecs Microseconds to delay. + */ +extern void DWC_UDELAY(uint32_t usecs); +#define dwc_udelay DWC_UDELAY + +/** Millisecond delay. + * + * @param msecs Milliseconds to delay. + */ +extern void DWC_MDELAY(uint32_t msecs); +#define dwc_mdelay DWC_MDELAY + +/** Non-busy waiting. + * Sleeps for specified number of milliseconds. + * + * @param msecs Milliseconds to sleep. + */ +extern void DWC_MSLEEP(uint32_t msecs); +#define dwc_msleep DWC_MSLEEP + +/** + * Returns number of milliseconds since boot. + */ +extern uint32_t DWC_TIME(void); +#define dwc_time DWC_TIME + + + + +/* @mainpage DWC Portability and Common Library + * + * This is the documentation for the DWC Portability and Common Library. + * + * @section intro Introduction + * + * The DWC Portability library consists of wrapper calls and data structures to + * all low-level functions which are typically provided by the OS. The WUDEV + * driver uses only these functions. In order to port the WUDEV driver, only + * the functions in this library need to be re-implemented, with the same + * behavior as documented here. + * + * The Common library consists of higher level functions, which rely only on + * calling the functions from the DWC Portability library. These common + * routines are shared across modules. Some of the common libraries need to be + * used directly by the driver programmer when porting WUDEV. Such as the + * parameter and notification libraries. + * + * @section low Portability Library OS Wrapper Functions + * + * Any function starting with DWC and in all CAPS is a low-level OS-wrapper that + * needs to be implemented when porting, for example DWC_MUTEX_ALLOC(). All of + * these functions are included in the dwc_os.h file. + * + * There are many functions here covering a wide array of OS services. Please + * see dwc_os.h for details, and implementation notes for each function. + * + * @section common Common Library Functions + * + * Any function starting with dwc and in all lowercase is a common library + * routine. These functions have a portable implementation and do not need to + * be reimplemented when porting. The common routines can be used by any + * driver, and some must be used by the end user to control the drivers. For + * example, you must use the Parameter common library in order to set the + * parameters in the WUDEV module. + * + * The common libraries consist of the following: + * + * - Connection Contexts - Used internally and can be used by end-user. See dwc_cc.h + * - Parameters - Used internally and can be used by end-user. See dwc_params.h + * - Notifications - Used internally and can be used by end-user. See dwc_notifier.h + * - Lists - Used internally and can be used by end-user. See dwc_list.h + * - Memory Debugging - Used internally and can be used by end-user. See dwc_os.h + * - Modpow - Used internally only. See dwc_modpow.h + * - DH - Used internally only. See dwc_dh.h + * - Crypto - Used internally only. See dwc_crypto.h + * + * + * @section prereq Prerequistes For dwc_os.h + * @subsection types Data Types + * + * The dwc_os.h file assumes that several low-level data types are pre defined for the + * compilation environment. These data types are: + * + * - uint8_t - unsigned 8-bit data type + * - int8_t - signed 8-bit data type + * - uint16_t - unsigned 16-bit data type + * - int16_t - signed 16-bit data type + * - uint32_t - unsigned 32-bit data type + * - int32_t - signed 32-bit data type + * - uint64_t - unsigned 64-bit data type + * - int64_t - signed 64-bit data type + * + * Ensure that these are defined before using dwc_os.h. The easiest way to do + * that is to modify the top of the file to include the appropriate header. + * This is already done for the Linux environment. If the DWC_LINUX macro is + * defined, the correct header will be added. A standard header is + * also used for environments where standard C headers are available. + * + * @subsection stdarg Variable Arguments + * + * Variable arguments are provided by a standard C header . it is + * available in Both the Linux and ANSI C enviornment. An equivalent must be + * provided in your enviornment in order to use dwc_os.h with the debug and + * tracing message functionality. + * + * @subsection thread Threading + * + * WUDEV Core must be run on an operating system that provides for multiple + * threads/processes. Threading can be implemented in many ways, even in + * embedded systems without an operating system. At the bare minimum, the + * system should be able to start any number of processes at any time to handle + * special work. It need not be a pre-emptive system. Process context can + * change upon a call to a blocking function. The hardware interrupt context + * that calls the module's ISR() function must be differentiable from process + * context, even if your processes are impemented via a hardware interrupt. + * Further locking mechanism between process must exist (or be implemented), and + * process context must have a way to disable interrupts for a period of time to + * lock them out. If all of this exists, the functions in dwc_os.h related to + * threading should be able to be implemented with the defined behavior. + * + */ + +#ifdef __cplusplus +} +#endif + +#endif /* _DWC_OS_H_ */ diff --git a/drivers/usb/host/dwc_common_port/usb.h b/drivers/usb/host/dwc_common_port/usb.h new file mode 100644 index 0000000000000000000000000000000000000000..27bda82dac2eb27923120c43aac3610974610221 --- /dev/null +++ b/drivers/usb/host/dwc_common_port/usb.h @@ -0,0 +1,946 @@ +/* + * Copyright (c) 1998 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Lennart Augustsson (lennart@augustsson.net) at + * Carlstedt Research & Technology. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +/* Modified by Synopsys, Inc, 12/12/2007 */ + + +#ifndef _USB_H_ +#define _USB_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * The USB records contain some unaligned little-endian word + * components. The U[SG]ETW macros take care of both the alignment + * and endian problem and should always be used to access non-byte + * values. + */ +typedef u_int8_t uByte; +typedef u_int8_t uWord[2]; +typedef u_int8_t uDWord[4]; + +#define USETW2(w,h,l) ((w)[0] = (u_int8_t)(l), (w)[1] = (u_int8_t)(h)) +#define UCONSTW(x) { (x) & 0xff, ((x) >> 8) & 0xff } +#define UCONSTDW(x) { (x) & 0xff, ((x) >> 8) & 0xff, \ + ((x) >> 16) & 0xff, ((x) >> 24) & 0xff } + +#if 1 +#define UGETW(w) ((w)[0] | ((w)[1] << 8)) +#define USETW(w,v) ((w)[0] = (u_int8_t)(v), (w)[1] = (u_int8_t)((v) >> 8)) +#define UGETDW(w) ((w)[0] | ((w)[1] << 8) | ((w)[2] << 16) | ((w)[3] << 24)) +#define USETDW(w,v) ((w)[0] = (u_int8_t)(v), \ + (w)[1] = (u_int8_t)((v) >> 8), \ + (w)[2] = (u_int8_t)((v) >> 16), \ + (w)[3] = (u_int8_t)((v) >> 24)) +#else +/* + * On little-endian machines that can handle unanliged accesses + * (e.g. i386) these macros can be replaced by the following. + */ +#define UGETW(w) (*(u_int16_t *)(w)) +#define USETW(w,v) (*(u_int16_t *)(w) = (v)) +#define UGETDW(w) (*(u_int32_t *)(w)) +#define USETDW(w,v) (*(u_int32_t *)(w) = (v)) +#endif + +/* + * Macros for accessing UAS IU fields, which are big-endian + */ +#define IUSETW2(w,h,l) ((w)[0] = (u_int8_t)(h), (w)[1] = (u_int8_t)(l)) +#define IUCONSTW(x) { ((x) >> 8) & 0xff, (x) & 0xff } +#define IUCONSTDW(x) { ((x) >> 24) & 0xff, ((x) >> 16) & 0xff, \ + ((x) >> 8) & 0xff, (x) & 0xff } +#define IUGETW(w) (((w)[0] << 8) | (w)[1]) +#define IUSETW(w,v) ((w)[0] = (u_int8_t)((v) >> 8), (w)[1] = (u_int8_t)(v)) +#define IUGETDW(w) (((w)[0] << 24) | ((w)[1] << 16) | ((w)[2] << 8) | (w)[3]) +#define IUSETDW(w,v) ((w)[0] = (u_int8_t)((v) >> 24), \ + (w)[1] = (u_int8_t)((v) >> 16), \ + (w)[2] = (u_int8_t)((v) >> 8), \ + (w)[3] = (u_int8_t)(v)) + +#define UPACKED __attribute__((__packed__)) + +typedef struct { + uByte bmRequestType; + uByte bRequest; + uWord wValue; + uWord wIndex; + uWord wLength; +} UPACKED usb_device_request_t; + +#define UT_GET_DIR(a) ((a) & 0x80) +#define UT_WRITE 0x00 +#define UT_READ 0x80 + +#define UT_GET_TYPE(a) ((a) & 0x60) +#define UT_STANDARD 0x00 +#define UT_CLASS 0x20 +#define UT_VENDOR 0x40 + +#define UT_GET_RECIPIENT(a) ((a) & 0x1f) +#define UT_DEVICE 0x00 +#define UT_INTERFACE 0x01 +#define UT_ENDPOINT 0x02 +#define UT_OTHER 0x03 + +#define UT_READ_DEVICE (UT_READ | UT_STANDARD | UT_DEVICE) +#define UT_READ_INTERFACE (UT_READ | UT_STANDARD | UT_INTERFACE) +#define UT_READ_ENDPOINT (UT_READ | UT_STANDARD | UT_ENDPOINT) +#define UT_WRITE_DEVICE (UT_WRITE | UT_STANDARD | UT_DEVICE) +#define UT_WRITE_INTERFACE (UT_WRITE | UT_STANDARD | UT_INTERFACE) +#define UT_WRITE_ENDPOINT (UT_WRITE | UT_STANDARD | UT_ENDPOINT) +#define UT_READ_CLASS_DEVICE (UT_READ | UT_CLASS | UT_DEVICE) +#define UT_READ_CLASS_INTERFACE (UT_READ | UT_CLASS | UT_INTERFACE) +#define UT_READ_CLASS_OTHER (UT_READ | UT_CLASS | UT_OTHER) +#define UT_READ_CLASS_ENDPOINT (UT_READ | UT_CLASS | UT_ENDPOINT) +#define UT_WRITE_CLASS_DEVICE (UT_WRITE | UT_CLASS | UT_DEVICE) +#define UT_WRITE_CLASS_INTERFACE (UT_WRITE | UT_CLASS | UT_INTERFACE) +#define UT_WRITE_CLASS_OTHER (UT_WRITE | UT_CLASS | UT_OTHER) +#define UT_WRITE_CLASS_ENDPOINT (UT_WRITE | UT_CLASS | UT_ENDPOINT) +#define UT_READ_VENDOR_DEVICE (UT_READ | UT_VENDOR | UT_DEVICE) +#define UT_READ_VENDOR_INTERFACE (UT_READ | UT_VENDOR | UT_INTERFACE) +#define UT_READ_VENDOR_OTHER (UT_READ | UT_VENDOR | UT_OTHER) +#define UT_READ_VENDOR_ENDPOINT (UT_READ | UT_VENDOR | UT_ENDPOINT) +#define UT_WRITE_VENDOR_DEVICE (UT_WRITE | UT_VENDOR | UT_DEVICE) +#define UT_WRITE_VENDOR_INTERFACE (UT_WRITE | UT_VENDOR | UT_INTERFACE) +#define UT_WRITE_VENDOR_OTHER (UT_WRITE | UT_VENDOR | UT_OTHER) +#define UT_WRITE_VENDOR_ENDPOINT (UT_WRITE | UT_VENDOR | UT_ENDPOINT) + +/* Requests */ +#define UR_GET_STATUS 0x00 +#define USTAT_STANDARD_STATUS 0x00 +#define WUSTAT_WUSB_FEATURE 0x01 +#define WUSTAT_CHANNEL_INFO 0x02 +#define WUSTAT_RECEIVED_DATA 0x03 +#define WUSTAT_MAS_AVAILABILITY 0x04 +#define WUSTAT_CURRENT_TRANSMIT_POWER 0x05 +#define UR_CLEAR_FEATURE 0x01 +#define UR_SET_FEATURE 0x03 +#define UR_SET_AND_TEST_FEATURE 0x0c +#define UR_SET_ADDRESS 0x05 +#define UR_GET_DESCRIPTOR 0x06 +#define UDESC_DEVICE 0x01 +#define UDESC_CONFIG 0x02 +#define UDESC_STRING 0x03 +#define UDESC_INTERFACE 0x04 +#define UDESC_ENDPOINT 0x05 +#define UDESC_SS_USB_COMPANION 0x30 +#define UDESC_DEVICE_QUALIFIER 0x06 +#define UDESC_OTHER_SPEED_CONFIGURATION 0x07 +#define UDESC_INTERFACE_POWER 0x08 +#define UDESC_OTG 0x09 +#define WUDESC_SECURITY 0x0c +#define WUDESC_KEY 0x0d +#define WUD_GET_KEY_INDEX(_wValue_) ((_wValue_) & 0xf) +#define WUD_GET_KEY_TYPE(_wValue_) (((_wValue_) & 0x30) >> 4) +#define WUD_KEY_TYPE_ASSOC 0x01 +#define WUD_KEY_TYPE_GTK 0x02 +#define WUD_GET_KEY_ORIGIN(_wValue_) (((_wValue_) & 0x40) >> 6) +#define WUD_KEY_ORIGIN_HOST 0x00 +#define WUD_KEY_ORIGIN_DEVICE 0x01 +#define WUDESC_ENCRYPTION_TYPE 0x0e +#define WUDESC_BOS 0x0f +#define WUDESC_DEVICE_CAPABILITY 0x10 +#define WUDESC_WIRELESS_ENDPOINT_COMPANION 0x11 +#define UDESC_BOS 0x0f +#define UDESC_DEVICE_CAPABILITY 0x10 +#define UDESC_CS_DEVICE 0x21 /* class specific */ +#define UDESC_CS_CONFIG 0x22 +#define UDESC_CS_STRING 0x23 +#define UDESC_CS_INTERFACE 0x24 +#define UDESC_CS_ENDPOINT 0x25 +#define UDESC_HUB 0x29 +#define UR_SET_DESCRIPTOR 0x07 +#define UR_GET_CONFIG 0x08 +#define UR_SET_CONFIG 0x09 +#define UR_GET_INTERFACE 0x0a +#define UR_SET_INTERFACE 0x0b +#define UR_SYNCH_FRAME 0x0c +#define WUR_SET_ENCRYPTION 0x0d +#define WUR_GET_ENCRYPTION 0x0e +#define WUR_SET_HANDSHAKE 0x0f +#define WUR_GET_HANDSHAKE 0x10 +#define WUR_SET_CONNECTION 0x11 +#define WUR_SET_SECURITY_DATA 0x12 +#define WUR_GET_SECURITY_DATA 0x13 +#define WUR_SET_WUSB_DATA 0x14 +#define WUDATA_DRPIE_INFO 0x01 +#define WUDATA_TRANSMIT_DATA 0x02 +#define WUDATA_TRANSMIT_PARAMS 0x03 +#define WUDATA_RECEIVE_PARAMS 0x04 +#define WUDATA_TRANSMIT_POWER 0x05 +#define WUR_LOOPBACK_DATA_WRITE 0x15 +#define WUR_LOOPBACK_DATA_READ 0x16 +#define WUR_SET_INTERFACE_DS 0x17 + +/* Feature numbers */ +#define UF_ENDPOINT_HALT 0 +#define UF_DEVICE_REMOTE_WAKEUP 1 +#define UF_TEST_MODE 2 +#define UF_DEVICE_B_HNP_ENABLE 3 +#define UF_DEVICE_A_HNP_SUPPORT 4 +#define UF_DEVICE_A_ALT_HNP_SUPPORT 5 +#define WUF_WUSB 3 +#define WUF_TX_DRPIE 0x0 +#define WUF_DEV_XMIT_PACKET 0x1 +#define WUF_COUNT_PACKETS 0x2 +#define WUF_CAPTURE_PACKETS 0x3 +#define UF_FUNCTION_SUSPEND 0 +#define UF_U1_ENABLE 48 +#define UF_U2_ENABLE 49 +#define UF_LTM_ENABLE 50 + +/* Class requests from the USB 2.0 hub spec, table 11-15 */ +#define UCR_CLEAR_HUB_FEATURE (0x2000 | UR_CLEAR_FEATURE) +#define UCR_CLEAR_PORT_FEATURE (0x2300 | UR_CLEAR_FEATURE) +#define UCR_GET_HUB_DESCRIPTOR (0xa000 | UR_GET_DESCRIPTOR) +#define UCR_GET_HUB_STATUS (0xa000 | UR_GET_STATUS) +#define UCR_GET_PORT_STATUS (0xa300 | UR_GET_STATUS) +#define UCR_SET_HUB_FEATURE (0x2000 | UR_SET_FEATURE) +#define UCR_SET_PORT_FEATURE (0x2300 | UR_SET_FEATURE) +#define UCR_SET_AND_TEST_PORT_FEATURE (0xa300 | UR_SET_AND_TEST_FEATURE) + +#ifdef _MSC_VER +#include +#endif + +typedef struct { + uByte bLength; + uByte bDescriptorType; + uByte bDescriptorSubtype; +} UPACKED usb_descriptor_t; + +typedef struct { + uByte bLength; + uByte bDescriptorType; +} UPACKED usb_descriptor_header_t; + +typedef struct { + uByte bLength; + uByte bDescriptorType; + uWord bcdUSB; +#define UD_USB_2_0 0x0200 +#define UD_IS_USB2(d) (UGETW((d)->bcdUSB) >= UD_USB_2_0) + uByte bDeviceClass; + uByte bDeviceSubClass; + uByte bDeviceProtocol; + uByte bMaxPacketSize; + /* The fields below are not part of the initial descriptor. */ + uWord idVendor; + uWord idProduct; + uWord bcdDevice; + uByte iManufacturer; + uByte iProduct; + uByte iSerialNumber; + uByte bNumConfigurations; +} UPACKED usb_device_descriptor_t; +#define USB_DEVICE_DESCRIPTOR_SIZE 18 + +typedef struct { + uByte bLength; + uByte bDescriptorType; + uWord wTotalLength; + uByte bNumInterface; + uByte bConfigurationValue; + uByte iConfiguration; +#define UC_ATT_ONE (1 << 7) /* must be set */ +#define UC_ATT_SELFPOWER (1 << 6) /* self powered */ +#define UC_ATT_WAKEUP (1 << 5) /* can wakeup */ +#define UC_ATT_BATTERY (1 << 4) /* battery powered */ + uByte bmAttributes; +#define UC_BUS_POWERED 0x80 +#define UC_SELF_POWERED 0x40 +#define UC_REMOTE_WAKEUP 0x20 + uByte bMaxPower; /* max current in 2 mA units */ +#define UC_POWER_FACTOR 2 +} UPACKED usb_config_descriptor_t; +#define USB_CONFIG_DESCRIPTOR_SIZE 9 + +typedef struct { + uByte bLength; + uByte bDescriptorType; + uByte bInterfaceNumber; + uByte bAlternateSetting; + uByte bNumEndpoints; + uByte bInterfaceClass; + uByte bInterfaceSubClass; + uByte bInterfaceProtocol; + uByte iInterface; +} UPACKED usb_interface_descriptor_t; +#define USB_INTERFACE_DESCRIPTOR_SIZE 9 + +typedef struct { + uByte bLength; + uByte bDescriptorType; + uByte bEndpointAddress; +#define UE_GET_DIR(a) ((a) & 0x80) +#define UE_SET_DIR(a,d) ((a) | (((d)&1) << 7)) +#define UE_DIR_IN 0x80 +#define UE_DIR_OUT 0x00 +#define UE_ADDR 0x0f +#define UE_GET_ADDR(a) ((a) & UE_ADDR) + uByte bmAttributes; +#define UE_XFERTYPE 0x03 +#define UE_CONTROL 0x00 +#define UE_ISOCHRONOUS 0x01 +#define UE_BULK 0x02 +#define UE_INTERRUPT 0x03 +#define UE_GET_XFERTYPE(a) ((a) & UE_XFERTYPE) +#define UE_ISO_TYPE 0x0c +#define UE_ISO_ASYNC 0x04 +#define UE_ISO_ADAPT 0x08 +#define UE_ISO_SYNC 0x0c +#define UE_GET_ISO_TYPE(a) ((a) & UE_ISO_TYPE) + uWord wMaxPacketSize; + uByte bInterval; +} UPACKED usb_endpoint_descriptor_t; +#define USB_ENDPOINT_DESCRIPTOR_SIZE 7 + +typedef struct ss_endpoint_companion_descriptor { + uByte bLength; + uByte bDescriptorType; + uByte bMaxBurst; +#define USSE_GET_MAX_STREAMS(a) ((a) & 0x1f) +#define USSE_SET_MAX_STREAMS(a, b) ((a) | ((b) & 0x1f)) +#define USSE_GET_MAX_PACKET_NUM(a) ((a) & 0x03) +#define USSE_SET_MAX_PACKET_NUM(a, b) ((a) | ((b) & 0x03)) + uByte bmAttributes; + uWord wBytesPerInterval; +} UPACKED ss_endpoint_companion_descriptor_t; +#define USB_SS_ENDPOINT_COMPANION_DESCRIPTOR_SIZE 6 + +typedef struct { + uByte bLength; + uByte bDescriptorType; + uWord bString[127]; +} UPACKED usb_string_descriptor_t; +#define USB_MAX_STRING_LEN 128 +#define USB_LANGUAGE_TABLE 0 /* # of the string language id table */ + +/* Hub specific request */ +#define UR_GET_BUS_STATE 0x02 +#define UR_CLEAR_TT_BUFFER 0x08 +#define UR_RESET_TT 0x09 +#define UR_GET_TT_STATE 0x0a +#define UR_STOP_TT 0x0b + +/* Hub features */ +#define UHF_C_HUB_LOCAL_POWER 0 +#define UHF_C_HUB_OVER_CURRENT 1 +#define UHF_PORT_CONNECTION 0 +#define UHF_PORT_ENABLE 1 +#define UHF_PORT_SUSPEND 2 +#define UHF_PORT_OVER_CURRENT 3 +#define UHF_PORT_RESET 4 +#define UHF_PORT_L1 5 +#define UHF_PORT_POWER 8 +#define UHF_PORT_LOW_SPEED 9 +#define UHF_PORT_HIGH_SPEED 10 +#define UHF_C_PORT_CONNECTION 16 +#define UHF_C_PORT_ENABLE 17 +#define UHF_C_PORT_SUSPEND 18 +#define UHF_C_PORT_OVER_CURRENT 19 +#define UHF_C_PORT_RESET 20 +#define UHF_C_PORT_L1 23 +#define UHF_PORT_TEST 21 +#define UHF_PORT_INDICATOR 22 + +typedef struct { + uByte bDescLength; + uByte bDescriptorType; + uByte bNbrPorts; + uWord wHubCharacteristics; +#define UHD_PWR 0x0003 +#define UHD_PWR_GANGED 0x0000 +#define UHD_PWR_INDIVIDUAL 0x0001 +#define UHD_PWR_NO_SWITCH 0x0002 +#define UHD_COMPOUND 0x0004 +#define UHD_OC 0x0018 +#define UHD_OC_GLOBAL 0x0000 +#define UHD_OC_INDIVIDUAL 0x0008 +#define UHD_OC_NONE 0x0010 +#define UHD_TT_THINK 0x0060 +#define UHD_TT_THINK_8 0x0000 +#define UHD_TT_THINK_16 0x0020 +#define UHD_TT_THINK_24 0x0040 +#define UHD_TT_THINK_32 0x0060 +#define UHD_PORT_IND 0x0080 + uByte bPwrOn2PwrGood; /* delay in 2 ms units */ +#define UHD_PWRON_FACTOR 2 + uByte bHubContrCurrent; + uByte DeviceRemovable[32]; /* max 255 ports */ +#define UHD_NOT_REMOV(desc, i) \ + (((desc)->DeviceRemovable[(i)/8] >> ((i) % 8)) & 1) + /* deprecated */ uByte PortPowerCtrlMask[1]; +} UPACKED usb_hub_descriptor_t; +#define USB_HUB_DESCRIPTOR_SIZE 9 /* includes deprecated PortPowerCtrlMask */ + +typedef struct { + uByte bLength; + uByte bDescriptorType; + uWord bcdUSB; + uByte bDeviceClass; + uByte bDeviceSubClass; + uByte bDeviceProtocol; + uByte bMaxPacketSize0; + uByte bNumConfigurations; + uByte bReserved; +} UPACKED usb_device_qualifier_t; +#define USB_DEVICE_QUALIFIER_SIZE 10 + +typedef struct { + uByte bLength; + uByte bDescriptorType; + uByte bmAttributes; +#define UOTG_SRP 0x01 +#define UOTG_HNP 0x02 +} UPACKED usb_otg_descriptor_t; + +/* OTG feature selectors */ +#define UOTG_B_HNP_ENABLE 3 +#define UOTG_A_HNP_SUPPORT 4 +#define UOTG_A_ALT_HNP_SUPPORT 5 + +typedef struct { + uWord wStatus; +/* Device status flags */ +#define UDS_SELF_POWERED 0x0001 +#define UDS_REMOTE_WAKEUP 0x0002 +/* Endpoint status flags */ +#define UES_HALT 0x0001 +} UPACKED usb_status_t; + +typedef struct { + uWord wHubStatus; +#define UHS_LOCAL_POWER 0x0001 +#define UHS_OVER_CURRENT 0x0002 + uWord wHubChange; +} UPACKED usb_hub_status_t; + +typedef struct { + uWord wPortStatus; +#define UPS_CURRENT_CONNECT_STATUS 0x0001 +#define UPS_PORT_ENABLED 0x0002 +#define UPS_SUSPEND 0x0004 +#define UPS_OVERCURRENT_INDICATOR 0x0008 +#define UPS_RESET 0x0010 +#define UPS_PORT_POWER 0x0100 +#define UPS_LOW_SPEED 0x0200 +#define UPS_HIGH_SPEED 0x0400 +#define UPS_PORT_TEST 0x0800 +#define UPS_PORT_INDICATOR 0x1000 + uWord wPortChange; +#define UPS_C_CONNECT_STATUS 0x0001 +#define UPS_C_PORT_ENABLED 0x0002 +#define UPS_C_SUSPEND 0x0004 +#define UPS_C_OVERCURRENT_INDICATOR 0x0008 +#define UPS_C_PORT_RESET 0x0010 +} UPACKED usb_port_status_t; + +#ifdef _MSC_VER +#include +#endif + +/* Device class codes */ +#define UDCLASS_IN_INTERFACE 0x00 +#define UDCLASS_COMM 0x02 +#define UDCLASS_HUB 0x09 +#define UDSUBCLASS_HUB 0x00 +#define UDPROTO_FSHUB 0x00 +#define UDPROTO_HSHUBSTT 0x01 +#define UDPROTO_HSHUBMTT 0x02 +#define UDCLASS_DIAGNOSTIC 0xdc +#define UDCLASS_WIRELESS 0xe0 +#define UDSUBCLASS_RF 0x01 +#define UDPROTO_BLUETOOTH 0x01 +#define UDCLASS_VENDOR 0xff + +/* Interface class codes */ +#define UICLASS_UNSPEC 0x00 + +#define UICLASS_AUDIO 0x01 +#define UISUBCLASS_AUDIOCONTROL 1 +#define UISUBCLASS_AUDIOSTREAM 2 +#define UISUBCLASS_MIDISTREAM 3 + +#define UICLASS_CDC 0x02 /* communication */ +#define UISUBCLASS_DIRECT_LINE_CONTROL_MODEL 1 +#define UISUBCLASS_ABSTRACT_CONTROL_MODEL 2 +#define UISUBCLASS_TELEPHONE_CONTROL_MODEL 3 +#define UISUBCLASS_MULTICHANNEL_CONTROL_MODEL 4 +#define UISUBCLASS_CAPI_CONTROLMODEL 5 +#define UISUBCLASS_ETHERNET_NETWORKING_CONTROL_MODEL 6 +#define UISUBCLASS_ATM_NETWORKING_CONTROL_MODEL 7 +#define UIPROTO_CDC_AT 1 + +#define UICLASS_HID 0x03 +#define UISUBCLASS_BOOT 1 +#define UIPROTO_BOOT_KEYBOARD 1 + +#define UICLASS_PHYSICAL 0x05 + +#define UICLASS_IMAGE 0x06 + +#define UICLASS_PRINTER 0x07 +#define UISUBCLASS_PRINTER 1 +#define UIPROTO_PRINTER_UNI 1 +#define UIPROTO_PRINTER_BI 2 +#define UIPROTO_PRINTER_1284 3 + +#define UICLASS_MASS 0x08 +#define UISUBCLASS_RBC 1 +#define UISUBCLASS_SFF8020I 2 +#define UISUBCLASS_QIC157 3 +#define UISUBCLASS_UFI 4 +#define UISUBCLASS_SFF8070I 5 +#define UISUBCLASS_SCSI 6 +#define UIPROTO_MASS_CBI_I 0 +#define UIPROTO_MASS_CBI 1 +#define UIPROTO_MASS_BBB_OLD 2 /* Not in the spec anymore */ +#define UIPROTO_MASS_BBB 80 /* 'P' for the Iomega Zip drive */ + +#define UICLASS_HUB 0x09 +#define UISUBCLASS_HUB 0 +#define UIPROTO_FSHUB 0 +#define UIPROTO_HSHUBSTT 0 /* Yes, same as previous */ +#define UIPROTO_HSHUBMTT 1 + +#define UICLASS_CDC_DATA 0x0a +#define UISUBCLASS_DATA 0 +#define UIPROTO_DATA_ISDNBRI 0x30 /* Physical iface */ +#define UIPROTO_DATA_HDLC 0x31 /* HDLC */ +#define UIPROTO_DATA_TRANSPARENT 0x32 /* Transparent */ +#define UIPROTO_DATA_Q921M 0x50 /* Management for Q921 */ +#define UIPROTO_DATA_Q921 0x51 /* Data for Q921 */ +#define UIPROTO_DATA_Q921TM 0x52 /* TEI multiplexer for Q921 */ +#define UIPROTO_DATA_V42BIS 0x90 /* Data compression */ +#define UIPROTO_DATA_Q931 0x91 /* Euro-ISDN */ +#define UIPROTO_DATA_V120 0x92 /* V.24 rate adaption */ +#define UIPROTO_DATA_CAPI 0x93 /* CAPI 2.0 commands */ +#define UIPROTO_DATA_HOST_BASED 0xfd /* Host based driver */ +#define UIPROTO_DATA_PUF 0xfe /* see Prot. Unit Func. Desc.*/ +#define UIPROTO_DATA_VENDOR 0xff /* Vendor specific */ + +#define UICLASS_SMARTCARD 0x0b + +/*#define UICLASS_FIRM_UPD 0x0c*/ + +#define UICLASS_SECURITY 0x0d + +#define UICLASS_DIAGNOSTIC 0xdc + +#define UICLASS_WIRELESS 0xe0 +#define UISUBCLASS_RF 0x01 +#define UIPROTO_BLUETOOTH 0x01 + +#define UICLASS_APPL_SPEC 0xfe +#define UISUBCLASS_FIRMWARE_DOWNLOAD 1 +#define UISUBCLASS_IRDA 2 +#define UIPROTO_IRDA 0 + +#define UICLASS_VENDOR 0xff + +#define USB_HUB_MAX_DEPTH 5 + +/* + * Minimum time a device needs to be powered down to go through + * a power cycle. XXX Are these time in the spec? + */ +#define USB_POWER_DOWN_TIME 200 /* ms */ +#define USB_PORT_POWER_DOWN_TIME 100 /* ms */ + +#if 0 +/* These are the values from the spec. */ +#define USB_PORT_RESET_DELAY 10 /* ms */ +#define USB_PORT_ROOT_RESET_DELAY 50 /* ms */ +#define USB_PORT_RESET_RECOVERY 10 /* ms */ +#define USB_PORT_POWERUP_DELAY 100 /* ms */ +#define USB_SET_ADDRESS_SETTLE 2 /* ms */ +#define USB_RESUME_DELAY (20*5) /* ms */ +#define USB_RESUME_WAIT 10 /* ms */ +#define USB_RESUME_RECOVERY 10 /* ms */ +#define USB_EXTRA_POWER_UP_TIME 0 /* ms */ +#else +/* Allow for marginal (i.e. non-conforming) devices. */ +#define USB_PORT_RESET_DELAY 50 /* ms */ +#define USB_PORT_ROOT_RESET_DELAY 250 /* ms */ +#define USB_PORT_RESET_RECOVERY 250 /* ms */ +#define USB_PORT_POWERUP_DELAY 300 /* ms */ +#define USB_SET_ADDRESS_SETTLE 10 /* ms */ +#define USB_RESUME_DELAY (50*5) /* ms */ +#define USB_RESUME_WAIT 50 /* ms */ +#define USB_RESUME_RECOVERY 50 /* ms */ +#define USB_EXTRA_POWER_UP_TIME 20 /* ms */ +#endif + +#define USB_MIN_POWER 100 /* mA */ +#define USB_MAX_POWER 500 /* mA */ + +#define USB_BUS_RESET_DELAY 100 /* ms XXX?*/ + +#define USB_UNCONFIG_NO 0 +#define USB_UNCONFIG_INDEX (-1) + +/*** ioctl() related stuff ***/ + +struct usb_ctl_request { + int ucr_addr; + usb_device_request_t ucr_request; + void *ucr_data; + int ucr_flags; +#define USBD_SHORT_XFER_OK 0x04 /* allow short reads */ + int ucr_actlen; /* actual length transferred */ +}; + +struct usb_alt_interface { + int uai_config_index; + int uai_interface_index; + int uai_alt_no; +}; + +#define USB_CURRENT_CONFIG_INDEX (-1) +#define USB_CURRENT_ALT_INDEX (-1) + +struct usb_config_desc { + int ucd_config_index; + usb_config_descriptor_t ucd_desc; +}; + +struct usb_interface_desc { + int uid_config_index; + int uid_interface_index; + int uid_alt_index; + usb_interface_descriptor_t uid_desc; +}; + +struct usb_endpoint_desc { + int ued_config_index; + int ued_interface_index; + int ued_alt_index; + int ued_endpoint_index; + usb_endpoint_descriptor_t ued_desc; +}; + +struct usb_full_desc { + int ufd_config_index; + u_int ufd_size; + u_char *ufd_data; +}; + +struct usb_string_desc { + int usd_string_index; + int usd_language_id; + usb_string_descriptor_t usd_desc; +}; + +struct usb_ctl_report_desc { + int ucrd_size; + u_char ucrd_data[1024]; /* filled data size will vary */ +}; + +typedef struct { u_int32_t cookie; } usb_event_cookie_t; + +#define USB_MAX_DEVNAMES 4 +#define USB_MAX_DEVNAMELEN 16 +struct usb_device_info { + u_int8_t udi_bus; + u_int8_t udi_addr; /* device address */ + usb_event_cookie_t udi_cookie; + char udi_product[USB_MAX_STRING_LEN]; + char udi_vendor[USB_MAX_STRING_LEN]; + char udi_release[8]; + u_int16_t udi_productNo; + u_int16_t udi_vendorNo; + u_int16_t udi_releaseNo; + u_int8_t udi_class; + u_int8_t udi_subclass; + u_int8_t udi_protocol; + u_int8_t udi_config; + u_int8_t udi_speed; +#define USB_SPEED_UNKNOWN 0 +#define USB_SPEED_LOW 1 +#define USB_SPEED_FULL 2 +#define USB_SPEED_HIGH 3 +#define USB_SPEED_VARIABLE 4 +#define USB_SPEED_SUPER 5 + int udi_power; /* power consumption in mA, 0 if selfpowered */ + int udi_nports; + char udi_devnames[USB_MAX_DEVNAMES][USB_MAX_DEVNAMELEN]; + u_int8_t udi_ports[16];/* hub only: addresses of devices on ports */ +#define USB_PORT_ENABLED 0xff +#define USB_PORT_SUSPENDED 0xfe +#define USB_PORT_POWERED 0xfd +#define USB_PORT_DISABLED 0xfc +}; + +struct usb_ctl_report { + int ucr_report; + u_char ucr_data[1024]; /* filled data size will vary */ +}; + +struct usb_device_stats { + u_long uds_requests[4]; /* indexed by transfer type UE_* */ +}; + +#define WUSB_MIN_IE 0x80 +#define WUSB_WCTA_IE 0x80 +#define WUSB_WCONNECTACK_IE 0x81 +#define WUSB_WHOSTINFO_IE 0x82 +#define WUHI_GET_CA(_bmAttributes_) ((_bmAttributes_) & 0x3) +#define WUHI_CA_RECONN 0x00 +#define WUHI_CA_LIMITED 0x01 +#define WUHI_CA_ALL 0x03 +#define WUHI_GET_MLSI(_bmAttributes_) (((_bmAttributes_) & 0x38) >> 3) +#define WUSB_WCHCHANGEANNOUNCE_IE 0x83 +#define WUSB_WDEV_DISCONNECT_IE 0x84 +#define WUSB_WHOST_DISCONNECT_IE 0x85 +#define WUSB_WRELEASE_CHANNEL_IE 0x86 +#define WUSB_WWORK_IE 0x87 +#define WUSB_WCHANNEL_STOP_IE 0x88 +#define WUSB_WDEV_KEEPALIVE_IE 0x89 +#define WUSB_WISOCH_DISCARD_IE 0x8A +#define WUSB_WRESETDEVICE_IE 0x8B +#define WUSB_WXMIT_PACKET_ADJUST_IE 0x8C +#define WUSB_MAX_IE 0x8C + +/* Device Notification Types */ + +#define WUSB_DN_MIN 0x01 +#define WUSB_DN_CONNECT 0x01 +# define WUSB_DA_OLDCONN 0x00 +# define WUSB_DA_NEWCONN 0x01 +# define WUSB_DA_SELF_BEACON 0x02 +# define WUSB_DA_DIR_BEACON 0x04 +# define WUSB_DA_NO_BEACON 0x06 +#define WUSB_DN_DISCONNECT 0x02 +#define WUSB_DN_EPRDY 0x03 +#define WUSB_DN_MASAVAILCHANGED 0x04 +#define WUSB_DN_REMOTEWAKEUP 0x05 +#define WUSB_DN_SLEEP 0x06 +#define WUSB_DN_ALIVE 0x07 +#define WUSB_DN_MAX 0x07 + +#ifdef _MSC_VER +#include +#endif + +/* WUSB Handshake Data. Used during the SET/GET HANDSHAKE requests */ +typedef struct wusb_hndshk_data { + uByte bMessageNumber; + uByte bStatus; + uByte tTKID[3]; + uByte bReserved; + uByte CDID[16]; + uByte Nonce[16]; + uByte MIC[8]; +} UPACKED wusb_hndshk_data_t; +#define WUSB_HANDSHAKE_LEN_FOR_MIC 38 + +/* WUSB Connection Context */ +typedef struct wusb_conn_context { + uByte CHID [16]; + uByte CDID [16]; + uByte CK [16]; +} UPACKED wusb_conn_context_t; + +/* WUSB Security Descriptor */ +typedef struct wusb_security_desc { + uByte bLength; + uByte bDescriptorType; + uWord wTotalLength; + uByte bNumEncryptionTypes; +} UPACKED wusb_security_desc_t; + +/* WUSB Encryption Type Descriptor */ +typedef struct wusb_encrypt_type_desc { + uByte bLength; + uByte bDescriptorType; + + uByte bEncryptionType; +#define WUETD_UNSECURE 0 +#define WUETD_WIRED 1 +#define WUETD_CCM_1 2 +#define WUETD_RSA_1 3 + + uByte bEncryptionValue; + uByte bAuthKeyIndex; +} UPACKED wusb_encrypt_type_desc_t; + +/* WUSB Key Descriptor */ +typedef struct wusb_key_desc { + uByte bLength; + uByte bDescriptorType; + uByte tTKID[3]; + uByte bReserved; + uByte KeyData[1]; /* variable length */ +} UPACKED wusb_key_desc_t; + +/* WUSB BOS Descriptor (Binary device Object Store) */ +typedef struct wusb_bos_desc { + uByte bLength; + uByte bDescriptorType; + uWord wTotalLength; + uByte bNumDeviceCaps; +} UPACKED wusb_bos_desc_t; + +#define USB_DEVICE_CAPABILITY_20_EXTENSION 0x02 +typedef struct usb_dev_cap_20_ext_desc { + uByte bLength; + uByte bDescriptorType; + uByte bDevCapabilityType; +#define USB_20_EXT_LPM 0x02 + uDWord bmAttributes; +} UPACKED usb_dev_cap_20_ext_desc_t; + +#define USB_DEVICE_CAPABILITY_SS_USB 0x03 +typedef struct usb_dev_cap_ss_usb { + uByte bLength; + uByte bDescriptorType; + uByte bDevCapabilityType; +#define USB_DC_SS_USB_LTM_CAPABLE 0x02 + uByte bmAttributes; +#define USB_DC_SS_USB_SPEED_SUPPORT_LOW 0x01 +#define USB_DC_SS_USB_SPEED_SUPPORT_FULL 0x02 +#define USB_DC_SS_USB_SPEED_SUPPORT_HIGH 0x04 +#define USB_DC_SS_USB_SPEED_SUPPORT_SS 0x08 + uWord wSpeedsSupported; + uByte bFunctionalitySupport; + uByte bU1DevExitLat; + uWord wU2DevExitLat; +} UPACKED usb_dev_cap_ss_usb_t; + +#define USB_DEVICE_CAPABILITY_CONTAINER_ID 0x04 +typedef struct usb_dev_cap_container_id { + uByte bLength; + uByte bDescriptorType; + uByte bDevCapabilityType; + uByte bReserved; + uByte containerID[16]; +} UPACKED usb_dev_cap_container_id_t; + +/* Device Capability Type Codes */ +#define WUSB_DEVICE_CAPABILITY_WIRELESS_USB 0x01 + +/* Device Capability Descriptor */ +typedef struct wusb_dev_cap_desc { + uByte bLength; + uByte bDescriptorType; + uByte bDevCapabilityType; + uByte caps[1]; /* Variable length */ +} UPACKED wusb_dev_cap_desc_t; + +/* Device Capability Descriptor */ +typedef struct wusb_dev_cap_uwb_desc { + uByte bLength; + uByte bDescriptorType; + uByte bDevCapabilityType; + uByte bmAttributes; + uWord wPHYRates; /* Bitmap */ + uByte bmTFITXPowerInfo; + uByte bmFFITXPowerInfo; + uWord bmBandGroup; + uByte bReserved; +} UPACKED wusb_dev_cap_uwb_desc_t; + +/* Wireless USB Endpoint Companion Descriptor */ +typedef struct wusb_endpoint_companion_desc { + uByte bLength; + uByte bDescriptorType; + uByte bMaxBurst; + uByte bMaxSequence; + uWord wMaxStreamDelay; + uWord wOverTheAirPacketSize; + uByte bOverTheAirInterval; + uByte bmCompAttributes; +} UPACKED wusb_endpoint_companion_desc_t; + +/* Wireless USB Numeric Association M1 Data Structure */ +typedef struct wusb_m1_data { + uByte version; + uWord langId; + uByte deviceFriendlyNameLength; + uByte sha_256_m3[32]; + uByte deviceFriendlyName[256]; +} UPACKED wusb_m1_data_t; + +typedef struct wusb_m2_data { + uByte version; + uWord langId; + uByte hostFriendlyNameLength; + uByte pkh[384]; + uByte hostFriendlyName[256]; +} UPACKED wusb_m2_data_t; + +typedef struct wusb_m3_data { + uByte pkd[384]; + uByte nd; +} UPACKED wusb_m3_data_t; + +typedef struct wusb_m4_data { + uDWord _attributeTypeIdAndLength_1; + uWord associationTypeId; + + uDWord _attributeTypeIdAndLength_2; + uWord associationSubTypeId; + + uDWord _attributeTypeIdAndLength_3; + uDWord length; + + uDWord _attributeTypeIdAndLength_4; + uDWord associationStatus; + + uDWord _attributeTypeIdAndLength_5; + uByte chid[16]; + + uDWord _attributeTypeIdAndLength_6; + uByte cdid[16]; + + uDWord _attributeTypeIdAndLength_7; + uByte bandGroups[2]; +} UPACKED wusb_m4_data_t; + +#ifdef _MSC_VER +#include +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* _USB_H_ */ diff --git a/drivers/usb/host/dwc_otg/Makefile b/drivers/usb/host/dwc_otg/Makefile new file mode 100644 index 0000000000000000000000000000000000000000..e7bdd12015fee1727a7956ae3e3b2786e88892c1 --- /dev/null +++ b/drivers/usb/host/dwc_otg/Makefile @@ -0,0 +1,82 @@ +# +# Makefile for DWC_otg Highspeed USB controller driver +# + +ifneq ($(KERNELRELEASE),) + +# Use the BUS_INTERFACE variable to compile the software for either +# PCI(PCI_INTERFACE) or LM(LM_INTERFACE) bus. +ifeq ($(BUS_INTERFACE),) +# BUS_INTERFACE = -DPCI_INTERFACE +# BUS_INTERFACE = -DLM_INTERFACE + BUS_INTERFACE = -DPLATFORM_INTERFACE +endif + +#ccflags-y += -DDEBUG +#ccflags-y += -DDWC_OTG_DEBUGLEV=1 # reduce common debug msgs + +# Use one of the following flags to compile the software in host-only or +# device-only mode. +#ccflags-y += -DDWC_HOST_ONLY +#ccflags-y += -DDWC_DEVICE_ONLY + +ccflags-y += -Dlinux -DDWC_HS_ELECT_TST +#ccflags-y += -DDWC_EN_ISOC +ccflags-y += -I$(obj)/../dwc_common_port +#ccflags-y += -I$(PORTLIB) +ccflags-y += -DDWC_LINUX +ccflags-y += $(CFI) +ccflags-y += $(BUS_INTERFACE) +#ccflags-y += -DDWC_DEV_SRPCAP + +obj-$(CONFIG_USB_DWCOTG) += dwc_otg.o + +dwc_otg-objs := dwc_otg_driver.o dwc_otg_attr.o +dwc_otg-objs += dwc_otg_cil.o dwc_otg_cil_intr.o +dwc_otg-objs += dwc_otg_pcd_linux.o dwc_otg_pcd.o dwc_otg_pcd_intr.o +dwc_otg-objs += dwc_otg_hcd.o dwc_otg_hcd_linux.o dwc_otg_hcd_intr.o dwc_otg_hcd_queue.o dwc_otg_hcd_ddma.o +dwc_otg-objs += dwc_otg_adp.o +dwc_otg-objs += dwc_otg_fiq_fsm.o +dwc_otg-objs += dwc_otg_fiq_stub.o +ifneq ($(CFI),) +dwc_otg-objs += dwc_otg_cfi.o +endif + +kernrelwd := $(subst ., ,$(KERNELRELEASE)) +kernrel3 := $(word 1,$(kernrelwd)).$(word 2,$(kernrelwd)).$(word 3,$(kernrelwd)) + +ifneq ($(kernrel3),2.6.20) +ccflags-y += $(CPPFLAGS) +endif + +else + +PWD := $(shell pwd) +PORTLIB := $(PWD)/../dwc_common_port + +# Command paths +CTAGS := $(CTAGS) +DOXYGEN := $(DOXYGEN) + +default: portlib + $(MAKE) -C$(KDIR) M=$(PWD) ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) modules + +install: default + $(MAKE) -C$(KDIR) M=$(PORTLIB) modules_install + $(MAKE) -C$(KDIR) M=$(PWD) modules_install + +portlib: + $(MAKE) -C$(KDIR) M=$(PORTLIB) ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) modules + cp $(PORTLIB)/Module.symvers $(PWD)/ + +docs: $(wildcard *.[hc]) doc/doxygen.cfg + $(DOXYGEN) doc/doxygen.cfg + +tags: $(wildcard *.[hc]) + $(CTAGS) -e $(wildcard *.[hc]) $(wildcard linux/*.[hc]) $(wildcard $(KDIR)/include/linux/usb*.h) + + +clean: + rm -rf *.o *.ko .*cmd *.mod.c .tmp_versions Module.symvers + +endif diff --git a/drivers/usb/host/dwc_otg/doc/doxygen.cfg b/drivers/usb/host/dwc_otg/doc/doxygen.cfg new file mode 100644 index 0000000000000000000000000000000000000000..712b057ef7c293e8ddfa95d89e2471fb96a38006 --- /dev/null +++ b/drivers/usb/host/dwc_otg/doc/doxygen.cfg @@ -0,0 +1,224 @@ +# Doxyfile 1.3.9.1 + +#--------------------------------------------------------------------------- +# Project related configuration options +#--------------------------------------------------------------------------- +PROJECT_NAME = "DesignWare USB 2.0 OTG Controller (DWC_otg) Device Driver" +PROJECT_NUMBER = v3.00a +OUTPUT_DIRECTORY = ./doc/ +CREATE_SUBDIRS = NO +OUTPUT_LANGUAGE = English +BRIEF_MEMBER_DESC = YES +REPEAT_BRIEF = YES +ABBREVIATE_BRIEF = "The $name class" \ + "The $name widget" \ + "The $name file" \ + is \ + provides \ + specifies \ + contains \ + represents \ + a \ + an \ + the +ALWAYS_DETAILED_SEC = NO +INLINE_INHERITED_MEMB = NO +FULL_PATH_NAMES = NO +STRIP_FROM_PATH = +STRIP_FROM_INC_PATH = +SHORT_NAMES = NO +JAVADOC_AUTOBRIEF = YES +MULTILINE_CPP_IS_BRIEF = NO +INHERIT_DOCS = YES +DISTRIBUTE_GROUP_DOC = NO +TAB_SIZE = 8 +ALIASES = +OPTIMIZE_OUTPUT_FOR_C = YES +OPTIMIZE_OUTPUT_JAVA = NO +SUBGROUPING = YES +#--------------------------------------------------------------------------- +# Build related configuration options +#--------------------------------------------------------------------------- +EXTRACT_ALL = NO +EXTRACT_PRIVATE = YES +EXTRACT_STATIC = YES +EXTRACT_LOCAL_CLASSES = YES +EXTRACT_LOCAL_METHODS = NO +HIDE_UNDOC_MEMBERS = NO +HIDE_UNDOC_CLASSES = NO +HIDE_FRIEND_COMPOUNDS = NO +HIDE_IN_BODY_DOCS = NO +INTERNAL_DOCS = NO +CASE_SENSE_NAMES = NO +HIDE_SCOPE_NAMES = NO +SHOW_INCLUDE_FILES = YES +INLINE_INFO = YES +SORT_MEMBER_DOCS = NO +SORT_BRIEF_DOCS = NO +SORT_BY_SCOPE_NAME = NO +GENERATE_TODOLIST = YES +GENERATE_TESTLIST = YES +GENERATE_BUGLIST = YES +GENERATE_DEPRECATEDLIST= YES +ENABLED_SECTIONS = +MAX_INITIALIZER_LINES = 30 +SHOW_USED_FILES = YES +SHOW_DIRECTORIES = YES +#--------------------------------------------------------------------------- +# configuration options related to warning and progress messages +#--------------------------------------------------------------------------- +QUIET = YES +WARNINGS = YES +WARN_IF_UNDOCUMENTED = NO +WARN_IF_DOC_ERROR = YES +WARN_FORMAT = "$file:$line: $text" +WARN_LOGFILE = +#--------------------------------------------------------------------------- +# configuration options related to the input files +#--------------------------------------------------------------------------- +INPUT = . +FILE_PATTERNS = *.c \ + *.h \ + ./linux/*.c \ + ./linux/*.h +RECURSIVE = NO +EXCLUDE = ./test/ \ + ./dwc_otg/.AppleDouble/ +EXCLUDE_SYMLINKS = YES +EXCLUDE_PATTERNS = *.mod.* +EXAMPLE_PATH = +EXAMPLE_PATTERNS = * +EXAMPLE_RECURSIVE = NO +IMAGE_PATH = +INPUT_FILTER = +FILTER_PATTERNS = +FILTER_SOURCE_FILES = NO +#--------------------------------------------------------------------------- +# configuration options related to source browsing +#--------------------------------------------------------------------------- +SOURCE_BROWSER = YES +INLINE_SOURCES = NO +STRIP_CODE_COMMENTS = YES +REFERENCED_BY_RELATION = NO +REFERENCES_RELATION = NO +VERBATIM_HEADERS = NO +#--------------------------------------------------------------------------- +# configuration options related to the alphabetical class index +#--------------------------------------------------------------------------- +ALPHABETICAL_INDEX = NO +COLS_IN_ALPHA_INDEX = 5 +IGNORE_PREFIX = +#--------------------------------------------------------------------------- +# configuration options related to the HTML output +#--------------------------------------------------------------------------- +GENERATE_HTML = YES +HTML_OUTPUT = html +HTML_FILE_EXTENSION = .html +HTML_HEADER = +HTML_FOOTER = +HTML_STYLESHEET = +HTML_ALIGN_MEMBERS = YES +GENERATE_HTMLHELP = NO +CHM_FILE = +HHC_LOCATION = +GENERATE_CHI = NO +BINARY_TOC = NO +TOC_EXPAND = NO +DISABLE_INDEX = NO +ENUM_VALUES_PER_LINE = 4 +GENERATE_TREEVIEW = YES +TREEVIEW_WIDTH = 250 +#--------------------------------------------------------------------------- +# configuration options related to the LaTeX output +#--------------------------------------------------------------------------- +GENERATE_LATEX = NO +LATEX_OUTPUT = latex +LATEX_CMD_NAME = latex +MAKEINDEX_CMD_NAME = makeindex +COMPACT_LATEX = NO +PAPER_TYPE = a4wide +EXTRA_PACKAGES = +LATEX_HEADER = +PDF_HYPERLINKS = NO +USE_PDFLATEX = NO +LATEX_BATCHMODE = NO +LATEX_HIDE_INDICES = NO +#--------------------------------------------------------------------------- +# configuration options related to the RTF output +#--------------------------------------------------------------------------- +GENERATE_RTF = NO +RTF_OUTPUT = rtf +COMPACT_RTF = NO +RTF_HYPERLINKS = NO +RTF_STYLESHEET_FILE = +RTF_EXTENSIONS_FILE = +#--------------------------------------------------------------------------- +# configuration options related to the man page output +#--------------------------------------------------------------------------- +GENERATE_MAN = NO +MAN_OUTPUT = man +MAN_EXTENSION = .3 +MAN_LINKS = NO +#--------------------------------------------------------------------------- +# configuration options related to the XML output +#--------------------------------------------------------------------------- +GENERATE_XML = NO +XML_OUTPUT = xml +XML_SCHEMA = +XML_DTD = +XML_PROGRAMLISTING = YES +#--------------------------------------------------------------------------- +# configuration options for the AutoGen Definitions output +#--------------------------------------------------------------------------- +GENERATE_AUTOGEN_DEF = NO +#--------------------------------------------------------------------------- +# configuration options related to the Perl module output +#--------------------------------------------------------------------------- +GENERATE_PERLMOD = NO +PERLMOD_LATEX = NO +PERLMOD_PRETTY = YES +PERLMOD_MAKEVAR_PREFIX = +#--------------------------------------------------------------------------- +# Configuration options related to the preprocessor +#--------------------------------------------------------------------------- +ENABLE_PREPROCESSING = YES +MACRO_EXPANSION = YES +EXPAND_ONLY_PREDEF = YES +SEARCH_INCLUDES = YES +INCLUDE_PATH = +INCLUDE_FILE_PATTERNS = +PREDEFINED = DEVICE_ATTR DWC_EN_ISOC +EXPAND_AS_DEFINED = DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW DWC_OTG_DEVICE_ATTR_BITFIELD_STORE DWC_OTG_DEVICE_ATTR_BITFIELD_RW DWC_OTG_DEVICE_ATTR_BITFIELD_RO DWC_OTG_DEVICE_ATTR_REG_SHOW DWC_OTG_DEVICE_ATTR_REG_STORE DWC_OTG_DEVICE_ATTR_REG32_RW DWC_OTG_DEVICE_ATTR_REG32_RO DWC_EN_ISOC +SKIP_FUNCTION_MACROS = NO +#--------------------------------------------------------------------------- +# Configuration::additions related to external references +#--------------------------------------------------------------------------- +TAGFILES = +GENERATE_TAGFILE = +ALLEXTERNALS = NO +EXTERNAL_GROUPS = YES +PERL_PATH = /usr/bin/perl +#--------------------------------------------------------------------------- +# Configuration options related to the dot tool +#--------------------------------------------------------------------------- +CLASS_DIAGRAMS = YES +HIDE_UNDOC_RELATIONS = YES +HAVE_DOT = NO +CLASS_GRAPH = YES +COLLABORATION_GRAPH = YES +UML_LOOK = NO +TEMPLATE_RELATIONS = NO +INCLUDE_GRAPH = YES +INCLUDED_BY_GRAPH = YES +CALL_GRAPH = NO +GRAPHICAL_HIERARCHY = YES +DOT_IMAGE_FORMAT = png +DOT_PATH = +DOTFILE_DIRS = +MAX_DOT_GRAPH_DEPTH = 1000 +GENERATE_LEGEND = YES +DOT_CLEANUP = YES +#--------------------------------------------------------------------------- +# Configuration::additions related to the search engine +#--------------------------------------------------------------------------- +SEARCHENGINE = NO diff --git a/drivers/usb/host/dwc_otg/dummy_audio.c b/drivers/usb/host/dwc_otg/dummy_audio.c new file mode 100644 index 0000000000000000000000000000000000000000..f827102fa64414d0f6e6ad47948a87fa4ab97e69 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dummy_audio.c @@ -0,0 +1,1574 @@ +/* + * zero.c -- Gadget Zero, for USB development + * + * Copyright (C) 2003-2004 David Brownell + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The names of the above-listed copyright holders may not be used + * to endorse or promote products derived from this software without + * specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS + * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + + +/* + * Gadget Zero only needs two bulk endpoints, and is an example of how you + * can write a hardware-agnostic gadget driver running inside a USB device. + * + * Hardware details are visible (see CONFIG_USB_ZERO_* below) but don't + * affect most of the driver. + * + * Use it with the Linux host/master side "usbtest" driver to get a basic + * functional test of your device-side usb stack, or with "usb-skeleton". + * + * It supports two similar configurations. One sinks whatever the usb host + * writes, and in return sources zeroes. The other loops whatever the host + * writes back, so the host can read it. Module options include: + * + * buflen=N default N=4096, buffer size used + * qlen=N default N=32, how many buffers in the loopback queue + * loopdefault default false, list loopback config first + * + * Many drivers will only have one configuration, letting them be much + * simpler if they also don't support high speed operation (like this + * driver does). + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21) +# include +#else +# include +#endif + +#include + + +/*-------------------------------------------------------------------------*/ +/*-------------------------------------------------------------------------*/ + + +static int utf8_to_utf16le(const char *s, u16 *cp, unsigned len) +{ + int count = 0; + u8 c; + u16 uchar; + + /* this insists on correct encodings, though not minimal ones. + * BUT it currently rejects legit 4-byte UTF-8 code points, + * which need surrogate pairs. (Unicode 3.1 can use them.) + */ + while (len != 0 && (c = (u8) *s++) != 0) { + if (unlikely(c & 0x80)) { + // 2-byte sequence: + // 00000yyyyyxxxxxx = 110yyyyy 10xxxxxx + if ((c & 0xe0) == 0xc0) { + uchar = (c & 0x1f) << 6; + + c = (u8) *s++; + if ((c & 0xc0) != 0xc0) + goto fail; + c &= 0x3f; + uchar |= c; + + // 3-byte sequence (most CJKV characters): + // zzzzyyyyyyxxxxxx = 1110zzzz 10yyyyyy 10xxxxxx + } else if ((c & 0xf0) == 0xe0) { + uchar = (c & 0x0f) << 12; + + c = (u8) *s++; + if ((c & 0xc0) != 0xc0) + goto fail; + c &= 0x3f; + uchar |= c << 6; + + c = (u8) *s++; + if ((c & 0xc0) != 0xc0) + goto fail; + c &= 0x3f; + uchar |= c; + + /* no bogus surrogates */ + if (0xd800 <= uchar && uchar <= 0xdfff) + goto fail; + + // 4-byte sequence (surrogate pairs, currently rare): + // 11101110wwwwzzzzyy + 110111yyyyxxxxxx + // = 11110uuu 10uuzzzz 10yyyyyy 10xxxxxx + // (uuuuu = wwww + 1) + // FIXME accept the surrogate code points (only) + + } else + goto fail; + } else + uchar = c; + put_unaligned (cpu_to_le16 (uchar), cp++); + count++; + len--; + } + return count; +fail: + return -1; +} + + +/** + * usb_gadget_get_string - fill out a string descriptor + * @table: of c strings encoded using UTF-8 + * @id: string id, from low byte of wValue in get string descriptor + * @buf: at least 256 bytes + * + * Finds the UTF-8 string matching the ID, and converts it into a + * string descriptor in utf16-le. + * Returns length of descriptor (always even) or negative errno + * + * If your driver needs stings in multiple languages, you'll probably + * "switch (wIndex) { ... }" in your ep0 string descriptor logic, + * using this routine after choosing which set of UTF-8 strings to use. + * Note that US-ASCII is a strict subset of UTF-8; any string bytes with + * the eighth bit set will be multibyte UTF-8 characters, not ISO-8859/1 + * characters (which are also widely used in C strings). + */ +int +usb_gadget_get_string (struct usb_gadget_strings *table, int id, u8 *buf) +{ + struct usb_string *s; + int len; + + /* descriptor 0 has the language id */ + if (id == 0) { + buf [0] = 4; + buf [1] = USB_DT_STRING; + buf [2] = (u8) table->language; + buf [3] = (u8) (table->language >> 8); + return 4; + } + for (s = table->strings; s && s->s; s++) + if (s->id == id) + break; + + /* unrecognized: stall. */ + if (!s || !s->s) + return -EINVAL; + + /* string descriptors have length, tag, then UTF16-LE text */ + len = min ((size_t) 126, strlen (s->s)); + memset (buf + 2, 0, 2 * len); /* zero all the bytes */ + len = utf8_to_utf16le(s->s, (u16 *)&buf[2], len); + if (len < 0) + return -EINVAL; + buf [0] = (len + 1) * 2; + buf [1] = USB_DT_STRING; + return buf [0]; +} + + +/*-------------------------------------------------------------------------*/ +/*-------------------------------------------------------------------------*/ + + +/** + * usb_descriptor_fillbuf - fill buffer with descriptors + * @buf: Buffer to be filled + * @buflen: Size of buf + * @src: Array of descriptor pointers, terminated by null pointer. + * + * Copies descriptors into the buffer, returning the length or a + * negative error code if they can't all be copied. Useful when + * assembling descriptors for an associated set of interfaces used + * as part of configuring a composite device; or in other cases where + * sets of descriptors need to be marshaled. + */ +int +usb_descriptor_fillbuf(void *buf, unsigned buflen, + const struct usb_descriptor_header **src) +{ + u8 *dest = buf; + + if (!src) + return -EINVAL; + + /* fill buffer from src[] until null descriptor ptr */ + for (; 0 != *src; src++) { + unsigned len = (*src)->bLength; + + if (len > buflen) + return -EINVAL; + memcpy(dest, *src, len); + buflen -= len; + dest += len; + } + return dest - (u8 *)buf; +} + + +/** + * usb_gadget_config_buf - builts a complete configuration descriptor + * @config: Header for the descriptor, including characteristics such + * as power requirements and number of interfaces. + * @desc: Null-terminated vector of pointers to the descriptors (interface, + * endpoint, etc) defining all functions in this device configuration. + * @buf: Buffer for the resulting configuration descriptor. + * @length: Length of buffer. If this is not big enough to hold the + * entire configuration descriptor, an error code will be returned. + * + * This copies descriptors into the response buffer, building a descriptor + * for that configuration. It returns the buffer length or a negative + * status code. The config.wTotalLength field is set to match the length + * of the result, but other descriptor fields (including power usage and + * interface count) must be set by the caller. + * + * Gadget drivers could use this when constructing a config descriptor + * in response to USB_REQ_GET_DESCRIPTOR. They will need to patch the + * resulting bDescriptorType value if USB_DT_OTHER_SPEED_CONFIG is needed. + */ +int usb_gadget_config_buf( + const struct usb_config_descriptor *config, + void *buf, + unsigned length, + const struct usb_descriptor_header **desc +) +{ + struct usb_config_descriptor *cp = buf; + int len; + + /* config descriptor first */ + if (length < USB_DT_CONFIG_SIZE || !desc) + return -EINVAL; + *cp = *config; + + /* then interface/endpoint/class/vendor/... */ + len = usb_descriptor_fillbuf(USB_DT_CONFIG_SIZE + (u8*)buf, + length - USB_DT_CONFIG_SIZE, desc); + if (len < 0) + return len; + len += USB_DT_CONFIG_SIZE; + if (len > 0xffff) + return -EINVAL; + + /* patch up the config descriptor */ + cp->bLength = USB_DT_CONFIG_SIZE; + cp->bDescriptorType = USB_DT_CONFIG; + cp->wTotalLength = cpu_to_le16(len); + cp->bmAttributes |= USB_CONFIG_ATT_ONE; + return len; +} + +/*-------------------------------------------------------------------------*/ +/*-------------------------------------------------------------------------*/ + + +#define RBUF_LEN (1024*1024) +static int rbuf_start; +static int rbuf_len; +static __u8 rbuf[RBUF_LEN]; + +/*-------------------------------------------------------------------------*/ + +#define DRIVER_VERSION "St Patrick's Day 2004" + +static const char shortname [] = "zero"; +static const char longname [] = "YAMAHA YST-MS35D USB Speaker "; + +static const char source_sink [] = "source and sink data"; +static const char loopback [] = "loop input to output"; + +/*-------------------------------------------------------------------------*/ + +/* + * driver assumes self-powered hardware, and + * has no way for users to trigger remote wakeup. + * + * this version autoconfigures as much as possible, + * which is reasonable for most "bulk-only" drivers. + */ +static const char *EP_IN_NAME; /* source */ +static const char *EP_OUT_NAME; /* sink */ + +/*-------------------------------------------------------------------------*/ + +/* big enough to hold our biggest descriptor */ +#define USB_BUFSIZ 512 + +struct zero_dev { + spinlock_t lock; + struct usb_gadget *gadget; + struct usb_request *req; /* for control responses */ + + /* when configured, we have one of two configs: + * - source data (in to host) and sink it (out from host) + * - or loop it back (out from host back in to host) + */ + u8 config; + struct usb_ep *in_ep, *out_ep; + + /* autoresume timer */ + struct timer_list resume; +}; + +#define xprintk(d,level,fmt,args...) \ + dev_printk(level , &(d)->gadget->dev , fmt , ## args) + +#ifdef DEBUG +#define DBG(dev,fmt,args...) \ + xprintk(dev , KERN_DEBUG , fmt , ## args) +#else +#define DBG(dev,fmt,args...) \ + do { } while (0) +#endif /* DEBUG */ + +#ifdef VERBOSE +#define VDBG DBG +#else +#define VDBG(dev,fmt,args...) \ + do { } while (0) +#endif /* VERBOSE */ + +#define ERROR(dev,fmt,args...) \ + xprintk(dev , KERN_ERR , fmt , ## args) +#define WARN(dev,fmt,args...) \ + xprintk(dev , KERN_WARNING , fmt , ## args) +#define INFO(dev,fmt,args...) \ + xprintk(dev , KERN_INFO , fmt , ## args) + +/*-------------------------------------------------------------------------*/ + +static unsigned buflen = 4096; +static unsigned qlen = 32; +static unsigned pattern = 0; + +module_param (buflen, uint, S_IRUGO|S_IWUSR); +module_param (qlen, uint, S_IRUGO|S_IWUSR); +module_param (pattern, uint, S_IRUGO|S_IWUSR); + +/* + * if it's nonzero, autoresume says how many seconds to wait + * before trying to wake up the host after suspend. + */ +static unsigned autoresume = 0; +module_param (autoresume, uint, 0); + +/* + * Normally the "loopback" configuration is second (index 1) so + * it's not the default. Here's where to change that order, to + * work better with hosts where config changes are problematic. + * Or controllers (like superh) that only support one config. + */ +static int loopdefault = 0; + +module_param (loopdefault, bool, S_IRUGO|S_IWUSR); + +/*-------------------------------------------------------------------------*/ + +/* Thanks to NetChip Technologies for donating this product ID. + * + * DO NOT REUSE THESE IDs with a protocol-incompatible driver!! Ever!! + * Instead: allocate your own, using normal USB-IF procedures. + */ +#ifndef CONFIG_USB_ZERO_HNPTEST +#define DRIVER_VENDOR_NUM 0x0525 /* NetChip */ +#define DRIVER_PRODUCT_NUM 0xa4a0 /* Linux-USB "Gadget Zero" */ +#else +#define DRIVER_VENDOR_NUM 0x1a0a /* OTG test device IDs */ +#define DRIVER_PRODUCT_NUM 0xbadd +#endif + +/*-------------------------------------------------------------------------*/ + +/* + * DESCRIPTORS ... most are static, but strings and (full) + * configuration descriptors are built on demand. + */ + +/* +#define STRING_MANUFACTURER 25 +#define STRING_PRODUCT 42 +#define STRING_SERIAL 101 +*/ +#define STRING_MANUFACTURER 1 +#define STRING_PRODUCT 2 +#define STRING_SERIAL 3 + +#define STRING_SOURCE_SINK 250 +#define STRING_LOOPBACK 251 + +/* + * This device advertises two configurations; these numbers work + * on a pxa250 as well as more flexible hardware. + */ +#define CONFIG_SOURCE_SINK 3 +#define CONFIG_LOOPBACK 2 + +/* +static struct usb_device_descriptor +device_desc = { + .bLength = sizeof device_desc, + .bDescriptorType = USB_DT_DEVICE, + + .bcdUSB = __constant_cpu_to_le16 (0x0200), + .bDeviceClass = USB_CLASS_VENDOR_SPEC, + + .idVendor = __constant_cpu_to_le16 (DRIVER_VENDOR_NUM), + .idProduct = __constant_cpu_to_le16 (DRIVER_PRODUCT_NUM), + .iManufacturer = STRING_MANUFACTURER, + .iProduct = STRING_PRODUCT, + .iSerialNumber = STRING_SERIAL, + .bNumConfigurations = 2, +}; +*/ +static struct usb_device_descriptor +device_desc = { + .bLength = sizeof device_desc, + .bDescriptorType = USB_DT_DEVICE, + .bcdUSB = __constant_cpu_to_le16 (0x0100), + .bDeviceClass = USB_CLASS_PER_INTERFACE, + .bDeviceSubClass = 0, + .bDeviceProtocol = 0, + .bMaxPacketSize0 = 64, + .bcdDevice = __constant_cpu_to_le16 (0x0100), + .idVendor = __constant_cpu_to_le16 (0x0499), + .idProduct = __constant_cpu_to_le16 (0x3002), + .iManufacturer = STRING_MANUFACTURER, + .iProduct = STRING_PRODUCT, + .iSerialNumber = STRING_SERIAL, + .bNumConfigurations = 1, +}; + +static struct usb_config_descriptor +z_config = { + .bLength = sizeof z_config, + .bDescriptorType = USB_DT_CONFIG, + + /* compute wTotalLength on the fly */ + .bNumInterfaces = 2, + .bConfigurationValue = 1, + .iConfiguration = 0, + .bmAttributes = 0x40, + .bMaxPower = 0, /* self-powered */ +}; + + +static struct usb_otg_descriptor +otg_descriptor = { + .bLength = sizeof otg_descriptor, + .bDescriptorType = USB_DT_OTG, + + .bmAttributes = USB_OTG_SRP, +}; + +/* one interface in each configuration */ +#ifdef CONFIG_USB_GADGET_DUALSPEED + +/* + * usb 2.0 devices need to expose both high speed and full speed + * descriptors, unless they only run at full speed. + * + * that means alternate endpoint descriptors (bigger packets) + * and a "device qualifier" ... plus more construction options + * for the config descriptor. + */ + +static struct usb_qualifier_descriptor +dev_qualifier = { + .bLength = sizeof dev_qualifier, + .bDescriptorType = USB_DT_DEVICE_QUALIFIER, + + .bcdUSB = __constant_cpu_to_le16 (0x0200), + .bDeviceClass = USB_CLASS_VENDOR_SPEC, + + .bNumConfigurations = 2, +}; + + +struct usb_cs_as_general_descriptor { + __u8 bLength; + __u8 bDescriptorType; + + __u8 bDescriptorSubType; + __u8 bTerminalLink; + __u8 bDelay; + __u16 wFormatTag; +} __attribute__ ((packed)); + +struct usb_cs_as_format_descriptor { + __u8 bLength; + __u8 bDescriptorType; + + __u8 bDescriptorSubType; + __u8 bFormatType; + __u8 bNrChannels; + __u8 bSubframeSize; + __u8 bBitResolution; + __u8 bSamfreqType; + __u8 tLowerSamFreq[3]; + __u8 tUpperSamFreq[3]; +} __attribute__ ((packed)); + +static const struct usb_interface_descriptor +z_audio_control_if_desc = { + .bLength = sizeof z_audio_control_if_desc, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 0, + .bAlternateSetting = 0, + .bNumEndpoints = 0, + .bInterfaceClass = USB_CLASS_AUDIO, + .bInterfaceSubClass = 0x1, + .bInterfaceProtocol = 0, + .iInterface = 0, +}; + +static const struct usb_interface_descriptor +z_audio_if_desc = { + .bLength = sizeof z_audio_if_desc, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 1, + .bAlternateSetting = 0, + .bNumEndpoints = 0, + .bInterfaceClass = USB_CLASS_AUDIO, + .bInterfaceSubClass = 0x2, + .bInterfaceProtocol = 0, + .iInterface = 0, +}; + +static const struct usb_interface_descriptor +z_audio_if_desc2 = { + .bLength = sizeof z_audio_if_desc, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 1, + .bAlternateSetting = 1, + .bNumEndpoints = 1, + .bInterfaceClass = USB_CLASS_AUDIO, + .bInterfaceSubClass = 0x2, + .bInterfaceProtocol = 0, + .iInterface = 0, +}; + +static const struct usb_cs_as_general_descriptor +z_audio_cs_as_if_desc = { + .bLength = 7, + .bDescriptorType = 0x24, + + .bDescriptorSubType = 0x01, + .bTerminalLink = 0x01, + .bDelay = 0x0, + .wFormatTag = __constant_cpu_to_le16 (0x0001) +}; + + +static const struct usb_cs_as_format_descriptor +z_audio_cs_as_format_desc = { + .bLength = 0xe, + .bDescriptorType = 0x24, + + .bDescriptorSubType = 2, + .bFormatType = 1, + .bNrChannels = 1, + .bSubframeSize = 1, + .bBitResolution = 8, + .bSamfreqType = 0, + .tLowerSamFreq = {0x7e, 0x13, 0x00}, + .tUpperSamFreq = {0xe2, 0xd6, 0x00}, +}; + +static const struct usb_endpoint_descriptor +z_iso_ep = { + .bLength = 0x09, + .bDescriptorType = 0x05, + .bEndpointAddress = 0x04, + .bmAttributes = 0x09, + .wMaxPacketSize = 0x0038, + .bInterval = 0x01, + .bRefresh = 0x00, + .bSynchAddress = 0x00, +}; + +static char z_iso_ep2[] = {0x07, 0x25, 0x01, 0x00, 0x02, 0x00, 0x02}; + +// 9 bytes +static char z_ac_interface_header_desc[] = +{ 0x09, 0x24, 0x01, 0x00, 0x01, 0x2b, 0x00, 0x01, 0x01 }; + +// 12 bytes +static char z_0[] = {0x0c, 0x24, 0x02, 0x01, 0x01, 0x01, 0x00, 0x02, + 0x03, 0x00, 0x00, 0x00}; +// 13 bytes +static char z_1[] = {0x0d, 0x24, 0x06, 0x02, 0x01, 0x02, 0x15, 0x00, + 0x02, 0x00, 0x02, 0x00, 0x00}; +// 9 bytes +static char z_2[] = {0x09, 0x24, 0x03, 0x03, 0x01, 0x03, 0x00, 0x02, + 0x00}; + +static char za_0[] = {0x09, 0x04, 0x01, 0x02, 0x01, 0x01, 0x02, 0x00, + 0x00}; + +static char za_1[] = {0x07, 0x24, 0x01, 0x01, 0x00, 0x01, 0x00}; + +static char za_2[] = {0x0e, 0x24, 0x02, 0x01, 0x02, 0x01, 0x08, 0x00, + 0x7e, 0x13, 0x00, 0xe2, 0xd6, 0x00}; + +static char za_3[] = {0x09, 0x05, 0x04, 0x09, 0x70, 0x00, 0x01, 0x00, + 0x00}; + +static char za_4[] = {0x07, 0x25, 0x01, 0x00, 0x02, 0x00, 0x02}; + +static char za_5[] = {0x09, 0x04, 0x01, 0x03, 0x01, 0x01, 0x02, 0x00, + 0x00}; + +static char za_6[] = {0x07, 0x24, 0x01, 0x01, 0x00, 0x01, 0x00}; + +static char za_7[] = {0x0e, 0x24, 0x02, 0x01, 0x01, 0x02, 0x10, 0x00, + 0x7e, 0x13, 0x00, 0xe2, 0xd6, 0x00}; + +static char za_8[] = {0x09, 0x05, 0x04, 0x09, 0x70, 0x00, 0x01, 0x00, + 0x00}; + +static char za_9[] = {0x07, 0x25, 0x01, 0x00, 0x02, 0x00, 0x02}; + +static char za_10[] = {0x09, 0x04, 0x01, 0x04, 0x01, 0x01, 0x02, 0x00, + 0x00}; + +static char za_11[] = {0x07, 0x24, 0x01, 0x01, 0x00, 0x01, 0x00}; + +static char za_12[] = {0x0e, 0x24, 0x02, 0x01, 0x02, 0x02, 0x10, 0x00, + 0x73, 0x13, 0x00, 0xe2, 0xd6, 0x00}; + +static char za_13[] = {0x09, 0x05, 0x04, 0x09, 0xe0, 0x00, 0x01, 0x00, + 0x00}; + +static char za_14[] = {0x07, 0x25, 0x01, 0x00, 0x02, 0x00, 0x02}; + +static char za_15[] = {0x09, 0x04, 0x01, 0x05, 0x01, 0x01, 0x02, 0x00, + 0x00}; + +static char za_16[] = {0x07, 0x24, 0x01, 0x01, 0x00, 0x01, 0x00}; + +static char za_17[] = {0x0e, 0x24, 0x02, 0x01, 0x01, 0x03, 0x14, 0x00, + 0x7e, 0x13, 0x00, 0xe2, 0xd6, 0x00}; + +static char za_18[] = {0x09, 0x05, 0x04, 0x09, 0xa8, 0x00, 0x01, 0x00, + 0x00}; + +static char za_19[] = {0x07, 0x25, 0x01, 0x00, 0x02, 0x00, 0x02}; + +static char za_20[] = {0x09, 0x04, 0x01, 0x06, 0x01, 0x01, 0x02, 0x00, + 0x00}; + +static char za_21[] = {0x07, 0x24, 0x01, 0x01, 0x00, 0x01, 0x00}; + +static char za_22[] = {0x0e, 0x24, 0x02, 0x01, 0x02, 0x03, 0x14, 0x00, + 0x7e, 0x13, 0x00, 0xe2, 0xd6, 0x00}; + +static char za_23[] = {0x09, 0x05, 0x04, 0x09, 0x50, 0x01, 0x01, 0x00, + 0x00}; + +static char za_24[] = {0x07, 0x25, 0x01, 0x00, 0x02, 0x00, 0x02}; + + + +static const struct usb_descriptor_header *z_function [] = { + (struct usb_descriptor_header *) &z_audio_control_if_desc, + (struct usb_descriptor_header *) &z_ac_interface_header_desc, + (struct usb_descriptor_header *) &z_0, + (struct usb_descriptor_header *) &z_1, + (struct usb_descriptor_header *) &z_2, + (struct usb_descriptor_header *) &z_audio_if_desc, + (struct usb_descriptor_header *) &z_audio_if_desc2, + (struct usb_descriptor_header *) &z_audio_cs_as_if_desc, + (struct usb_descriptor_header *) &z_audio_cs_as_format_desc, + (struct usb_descriptor_header *) &z_iso_ep, + (struct usb_descriptor_header *) &z_iso_ep2, + (struct usb_descriptor_header *) &za_0, + (struct usb_descriptor_header *) &za_1, + (struct usb_descriptor_header *) &za_2, + (struct usb_descriptor_header *) &za_3, + (struct usb_descriptor_header *) &za_4, + (struct usb_descriptor_header *) &za_5, + (struct usb_descriptor_header *) &za_6, + (struct usb_descriptor_header *) &za_7, + (struct usb_descriptor_header *) &za_8, + (struct usb_descriptor_header *) &za_9, + (struct usb_descriptor_header *) &za_10, + (struct usb_descriptor_header *) &za_11, + (struct usb_descriptor_header *) &za_12, + (struct usb_descriptor_header *) &za_13, + (struct usb_descriptor_header *) &za_14, + (struct usb_descriptor_header *) &za_15, + (struct usb_descriptor_header *) &za_16, + (struct usb_descriptor_header *) &za_17, + (struct usb_descriptor_header *) &za_18, + (struct usb_descriptor_header *) &za_19, + (struct usb_descriptor_header *) &za_20, + (struct usb_descriptor_header *) &za_21, + (struct usb_descriptor_header *) &za_22, + (struct usb_descriptor_header *) &za_23, + (struct usb_descriptor_header *) &za_24, + NULL, +}; + +/* maxpacket and other transfer characteristics vary by speed. */ +#define ep_desc(g,hs,fs) (((g)->speed==USB_SPEED_HIGH)?(hs):(fs)) + +#else + +/* if there's no high speed support, maxpacket doesn't change. */ +#define ep_desc(g,hs,fs) fs + +#endif /* !CONFIG_USB_GADGET_DUALSPEED */ + +static char manufacturer [40]; +//static char serial [40]; +static char serial [] = "Ser 00 em"; + +/* static strings, in UTF-8 */ +static struct usb_string strings [] = { + { STRING_MANUFACTURER, manufacturer, }, + { STRING_PRODUCT, longname, }, + { STRING_SERIAL, serial, }, + { STRING_LOOPBACK, loopback, }, + { STRING_SOURCE_SINK, source_sink, }, + { } /* end of list */ +}; + +static struct usb_gadget_strings stringtab = { + .language = 0x0409, /* en-us */ + .strings = strings, +}; + +/* + * config descriptors are also handcrafted. these must agree with code + * that sets configurations, and with code managing interfaces and their + * altsettings. other complexity may come from: + * + * - high speed support, including "other speed config" rules + * - multiple configurations + * - interfaces with alternate settings + * - embedded class or vendor-specific descriptors + * + * this handles high speed, and has a second config that could as easily + * have been an alternate interface setting (on most hardware). + * + * NOTE: to demonstrate (and test) more USB capabilities, this driver + * should include an altsetting to test interrupt transfers, including + * high bandwidth modes at high speed. (Maybe work like Intel's test + * device?) + */ +static int +config_buf (struct usb_gadget *gadget, u8 *buf, u8 type, unsigned index) +{ + int len; + const struct usb_descriptor_header **function; + + function = z_function; + len = usb_gadget_config_buf (&z_config, buf, USB_BUFSIZ, function); + if (len < 0) + return len; + ((struct usb_config_descriptor *) buf)->bDescriptorType = type; + return len; +} + +/*-------------------------------------------------------------------------*/ + +static struct usb_request * +alloc_ep_req (struct usb_ep *ep, unsigned length) +{ + struct usb_request *req; + + req = usb_ep_alloc_request (ep, GFP_ATOMIC); + if (req) { + req->length = length; + req->buf = usb_ep_alloc_buffer (ep, length, + &req->dma, GFP_ATOMIC); + if (!req->buf) { + usb_ep_free_request (ep, req); + req = NULL; + } + } + return req; +} + +static void free_ep_req (struct usb_ep *ep, struct usb_request *req) +{ + if (req->buf) + usb_ep_free_buffer (ep, req->buf, req->dma, req->length); + usb_ep_free_request (ep, req); +} + +/*-------------------------------------------------------------------------*/ + +/* optionally require specific source/sink data patterns */ + +static int +check_read_data ( + struct zero_dev *dev, + struct usb_ep *ep, + struct usb_request *req +) +{ + unsigned i; + u8 *buf = req->buf; + + for (i = 0; i < req->actual; i++, buf++) { + switch (pattern) { + /* all-zeroes has no synchronization issues */ + case 0: + if (*buf == 0) + continue; + break; + /* mod63 stays in sync with short-terminated transfers, + * or otherwise when host and gadget agree on how large + * each usb transfer request should be. resync is done + * with set_interface or set_config. + */ + case 1: + if (*buf == (u8)(i % 63)) + continue; + break; + } + ERROR (dev, "bad OUT byte, buf [%d] = %d\n", i, *buf); + usb_ep_set_halt (ep); + return -EINVAL; + } + return 0; +} + +/*-------------------------------------------------------------------------*/ + +static void zero_reset_config (struct zero_dev *dev) +{ + if (dev->config == 0) + return; + + DBG (dev, "reset config\n"); + + /* just disable endpoints, forcing completion of pending i/o. + * all our completion handlers free their requests in this case. + */ + if (dev->in_ep) { + usb_ep_disable (dev->in_ep); + dev->in_ep = NULL; + } + if (dev->out_ep) { + usb_ep_disable (dev->out_ep); + dev->out_ep = NULL; + } + dev->config = 0; + del_timer (&dev->resume); +} + +#define _write(f, buf, sz) (f->f_op->write(f, buf, sz, &f->f_pos)) + +static void +zero_isoc_complete (struct usb_ep *ep, struct usb_request *req) +{ + struct zero_dev *dev = ep->driver_data; + int status = req->status; + int i, j; + + switch (status) { + + case 0: /* normal completion? */ + //printk ("\nzero ---------------> isoc normal completion %d bytes\n", req->actual); + for (i=0, j=rbuf_start; iactual; i++) { + //printk ("%02x ", ((__u8*)req->buf)[i]); + rbuf[j] = ((__u8*)req->buf)[i]; + j++; + if (j >= RBUF_LEN) j=0; + } + rbuf_start = j; + //printk ("\n\n"); + + if (rbuf_len < RBUF_LEN) { + rbuf_len += req->actual; + if (rbuf_len > RBUF_LEN) { + rbuf_len = RBUF_LEN; + } + } + + break; + + /* this endpoint is normally active while we're configured */ + case -ECONNABORTED: /* hardware forced ep reset */ + case -ECONNRESET: /* request dequeued */ + case -ESHUTDOWN: /* disconnect from host */ + VDBG (dev, "%s gone (%d), %d/%d\n", ep->name, status, + req->actual, req->length); + if (ep == dev->out_ep) + check_read_data (dev, ep, req); + free_ep_req (ep, req); + return; + + case -EOVERFLOW: /* buffer overrun on read means that + * we didn't provide a big enough + * buffer. + */ + default: +#if 1 + DBG (dev, "%s complete --> %d, %d/%d\n", ep->name, + status, req->actual, req->length); +#endif + case -EREMOTEIO: /* short read */ + break; + } + + status = usb_ep_queue (ep, req, GFP_ATOMIC); + if (status) { + ERROR (dev, "kill %s: resubmit %d bytes --> %d\n", + ep->name, req->length, status); + usb_ep_set_halt (ep); + /* FIXME recover later ... somehow */ + } +} + +static struct usb_request * +zero_start_isoc_ep (struct usb_ep *ep, int gfp_flags) +{ + struct usb_request *req; + int status; + + req = alloc_ep_req (ep, 512); + if (!req) + return NULL; + + req->complete = zero_isoc_complete; + + status = usb_ep_queue (ep, req, gfp_flags); + if (status) { + struct zero_dev *dev = ep->driver_data; + + ERROR (dev, "start %s --> %d\n", ep->name, status); + free_ep_req (ep, req); + req = NULL; + } + + return req; +} + +/* change our operational config. this code must agree with the code + * that returns config descriptors, and altsetting code. + * + * it's also responsible for power management interactions. some + * configurations might not work with our current power sources. + * + * note that some device controller hardware will constrain what this + * code can do, perhaps by disallowing more than one configuration or + * by limiting configuration choices (like the pxa2xx). + */ +static int +zero_set_config (struct zero_dev *dev, unsigned number, int gfp_flags) +{ + int result = 0; + struct usb_gadget *gadget = dev->gadget; + const struct usb_endpoint_descriptor *d; + struct usb_ep *ep; + + if (number == dev->config) + return 0; + + zero_reset_config (dev); + + gadget_for_each_ep (ep, gadget) { + + if (strcmp (ep->name, "ep4") == 0) { + + d = (struct usb_endpoint_descripter *)&za_23; // isoc ep desc for audio i/f alt setting 6 + result = usb_ep_enable (ep, d); + + if (result == 0) { + ep->driver_data = dev; + dev->in_ep = ep; + + if (zero_start_isoc_ep (ep, gfp_flags) != 0) { + + dev->in_ep = ep; + continue; + } + + usb_ep_disable (ep); + result = -EIO; + } + } + + } + + dev->config = number; + return result; +} + +/*-------------------------------------------------------------------------*/ + +static void zero_setup_complete (struct usb_ep *ep, struct usb_request *req) +{ + if (req->status || req->actual != req->length) + DBG ((struct zero_dev *) ep->driver_data, + "setup complete --> %d, %d/%d\n", + req->status, req->actual, req->length); +} + +/* + * The setup() callback implements all the ep0 functionality that's + * not handled lower down, in hardware or the hardware driver (like + * device and endpoint feature flags, and their status). It's all + * housekeeping for the gadget function we're implementing. Most of + * the work is in config-specific setup. + */ +static int +zero_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) +{ + struct zero_dev *dev = get_gadget_data (gadget); + struct usb_request *req = dev->req; + int value = -EOPNOTSUPP; + + /* usually this stores reply data in the pre-allocated ep0 buffer, + * but config change events will reconfigure hardware. + */ + req->zero = 0; + switch (ctrl->bRequest) { + + case USB_REQ_GET_DESCRIPTOR: + + switch (ctrl->wValue >> 8) { + + case USB_DT_DEVICE: + value = min (ctrl->wLength, (u16) sizeof device_desc); + memcpy (req->buf, &device_desc, value); + break; +#ifdef CONFIG_USB_GADGET_DUALSPEED + case USB_DT_DEVICE_QUALIFIER: + if (!gadget->is_dualspeed) + break; + value = min (ctrl->wLength, (u16) sizeof dev_qualifier); + memcpy (req->buf, &dev_qualifier, value); + break; + + case USB_DT_OTHER_SPEED_CONFIG: + if (!gadget->is_dualspeed) + break; + // FALLTHROUGH +#endif /* CONFIG_USB_GADGET_DUALSPEED */ + case USB_DT_CONFIG: + value = config_buf (gadget, req->buf, + ctrl->wValue >> 8, + ctrl->wValue & 0xff); + if (value >= 0) + value = min (ctrl->wLength, (u16) value); + break; + + case USB_DT_STRING: + /* wIndex == language code. + * this driver only handles one language, you can + * add string tables for other languages, using + * any UTF-8 characters + */ + value = usb_gadget_get_string (&stringtab, + ctrl->wValue & 0xff, req->buf); + if (value >= 0) { + value = min (ctrl->wLength, (u16) value); + } + break; + } + break; + + /* currently two configs, two speeds */ + case USB_REQ_SET_CONFIGURATION: + if (ctrl->bRequestType != 0) + goto unknown; + + spin_lock (&dev->lock); + value = zero_set_config (dev, ctrl->wValue, GFP_ATOMIC); + spin_unlock (&dev->lock); + break; + case USB_REQ_GET_CONFIGURATION: + if (ctrl->bRequestType != USB_DIR_IN) + goto unknown; + *(u8 *)req->buf = dev->config; + value = min (ctrl->wLength, (u16) 1); + break; + + /* until we add altsetting support, or other interfaces, + * only 0/0 are possible. pxa2xx only supports 0/0 (poorly) + * and already killed pending endpoint I/O. + */ + case USB_REQ_SET_INTERFACE: + + if (ctrl->bRequestType != USB_RECIP_INTERFACE) + goto unknown; + spin_lock (&dev->lock); + if (dev->config) { + u8 config = dev->config; + + /* resets interface configuration, forgets about + * previous transaction state (queued bufs, etc) + * and re-inits endpoint state (toggle etc) + * no response queued, just zero status == success. + * if we had more than one interface we couldn't + * use this "reset the config" shortcut. + */ + zero_reset_config (dev); + zero_set_config (dev, config, GFP_ATOMIC); + value = 0; + } + spin_unlock (&dev->lock); + break; + case USB_REQ_GET_INTERFACE: + if ((ctrl->bRequestType == 0x21) && (ctrl->wIndex == 0x02)) { + value = ctrl->wLength; + break; + } + else { + if (ctrl->bRequestType != (USB_DIR_IN|USB_RECIP_INTERFACE)) + goto unknown; + if (!dev->config) + break; + if (ctrl->wIndex != 0) { + value = -EDOM; + break; + } + *(u8 *)req->buf = 0; + value = min (ctrl->wLength, (u16) 1); + } + break; + + /* + * These are the same vendor-specific requests supported by + * Intel's USB 2.0 compliance test devices. We exceed that + * device spec by allowing multiple-packet requests. + */ + case 0x5b: /* control WRITE test -- fill the buffer */ + if (ctrl->bRequestType != (USB_DIR_OUT|USB_TYPE_VENDOR)) + goto unknown; + if (ctrl->wValue || ctrl->wIndex) + break; + /* just read that many bytes into the buffer */ + if (ctrl->wLength > USB_BUFSIZ) + break; + value = ctrl->wLength; + break; + case 0x5c: /* control READ test -- return the buffer */ + if (ctrl->bRequestType != (USB_DIR_IN|USB_TYPE_VENDOR)) + goto unknown; + if (ctrl->wValue || ctrl->wIndex) + break; + /* expect those bytes are still in the buffer; send back */ + if (ctrl->wLength > USB_BUFSIZ + || ctrl->wLength != req->length) + break; + value = ctrl->wLength; + break; + + case 0x01: // SET_CUR + case 0x02: + case 0x03: + case 0x04: + case 0x05: + value = ctrl->wLength; + break; + case 0x81: + switch (ctrl->wValue) { + case 0x0201: + case 0x0202: + ((u8*)req->buf)[0] = 0x00; + ((u8*)req->buf)[1] = 0xe3; + break; + case 0x0300: + case 0x0500: + ((u8*)req->buf)[0] = 0x00; + break; + } + //((u8*)req->buf)[0] = 0x81; + //((u8*)req->buf)[1] = 0x81; + value = ctrl->wLength; + break; + case 0x82: + switch (ctrl->wValue) { + case 0x0201: + case 0x0202: + ((u8*)req->buf)[0] = 0x00; + ((u8*)req->buf)[1] = 0xc3; + break; + case 0x0300: + case 0x0500: + ((u8*)req->buf)[0] = 0x00; + break; + } + //((u8*)req->buf)[0] = 0x82; + //((u8*)req->buf)[1] = 0x82; + value = ctrl->wLength; + break; + case 0x83: + switch (ctrl->wValue) { + case 0x0201: + case 0x0202: + ((u8*)req->buf)[0] = 0x00; + ((u8*)req->buf)[1] = 0x00; + break; + case 0x0300: + ((u8*)req->buf)[0] = 0x60; + break; + case 0x0500: + ((u8*)req->buf)[0] = 0x18; + break; + } + //((u8*)req->buf)[0] = 0x83; + //((u8*)req->buf)[1] = 0x83; + value = ctrl->wLength; + break; + case 0x84: + switch (ctrl->wValue) { + case 0x0201: + case 0x0202: + ((u8*)req->buf)[0] = 0x00; + ((u8*)req->buf)[1] = 0x01; + break; + case 0x0300: + case 0x0500: + ((u8*)req->buf)[0] = 0x08; + break; + } + //((u8*)req->buf)[0] = 0x84; + //((u8*)req->buf)[1] = 0x84; + value = ctrl->wLength; + break; + case 0x85: + ((u8*)req->buf)[0] = 0x85; + ((u8*)req->buf)[1] = 0x85; + value = ctrl->wLength; + break; + + + default: +unknown: + printk("unknown control req%02x.%02x v%04x i%04x l%d\n", + ctrl->bRequestType, ctrl->bRequest, + ctrl->wValue, ctrl->wIndex, ctrl->wLength); + } + + /* respond with data transfer before status phase? */ + if (value >= 0) { + req->length = value; + req->zero = value < ctrl->wLength + && (value % gadget->ep0->maxpacket) == 0; + value = usb_ep_queue (gadget->ep0, req, GFP_ATOMIC); + if (value < 0) { + DBG (dev, "ep_queue < 0 --> %d\n", value); + req->status = 0; + zero_setup_complete (gadget->ep0, req); + } + } + + /* device either stalls (value < 0) or reports success */ + return value; +} + +static void +zero_disconnect (struct usb_gadget *gadget) +{ + struct zero_dev *dev = get_gadget_data (gadget); + unsigned long flags; + + spin_lock_irqsave (&dev->lock, flags); + zero_reset_config (dev); + + /* a more significant application might have some non-usb + * activities to quiesce here, saving resources like power + * or pushing the notification up a network stack. + */ + spin_unlock_irqrestore (&dev->lock, flags); + + /* next we may get setup() calls to enumerate new connections; + * or an unbind() during shutdown (including removing module). + */ +} + +static void +zero_autoresume (unsigned long _dev) +{ + struct zero_dev *dev = (struct zero_dev *) _dev; + int status; + + /* normally the host would be woken up for something + * more significant than just a timer firing... + */ + if (dev->gadget->speed != USB_SPEED_UNKNOWN) { + status = usb_gadget_wakeup (dev->gadget); + DBG (dev, "wakeup --> %d\n", status); + } +} + +/*-------------------------------------------------------------------------*/ + +static void +zero_unbind (struct usb_gadget *gadget) +{ + struct zero_dev *dev = get_gadget_data (gadget); + + DBG (dev, "unbind\n"); + + /* we've already been disconnected ... no i/o is active */ + if (dev->req) + free_ep_req (gadget->ep0, dev->req); + del_timer_sync (&dev->resume); + kfree (dev); + set_gadget_data (gadget, NULL); +} + +static int +zero_bind (struct usb_gadget *gadget) +{ + struct zero_dev *dev; + //struct usb_ep *ep; + + printk("binding\n"); + /* + * DRIVER POLICY CHOICE: you may want to do this differently. + * One thing to avoid is reusing a bcdDevice revision code + * with different host-visible configurations or behavior + * restrictions -- using ep1in/ep2out vs ep1out/ep3in, etc + */ + //device_desc.bcdDevice = __constant_cpu_to_le16 (0x0201); + + + /* ok, we made sense of the hardware ... */ + dev = kzalloc (sizeof *dev, SLAB_KERNEL); + if (!dev) + return -ENOMEM; + spin_lock_init (&dev->lock); + dev->gadget = gadget; + set_gadget_data (gadget, dev); + + /* preallocate control response and buffer */ + dev->req = usb_ep_alloc_request (gadget->ep0, GFP_KERNEL); + if (!dev->req) + goto enomem; + dev->req->buf = usb_ep_alloc_buffer (gadget->ep0, USB_BUFSIZ, + &dev->req->dma, GFP_KERNEL); + if (!dev->req->buf) + goto enomem; + + dev->req->complete = zero_setup_complete; + + device_desc.bMaxPacketSize0 = gadget->ep0->maxpacket; + +#ifdef CONFIG_USB_GADGET_DUALSPEED + /* assume ep0 uses the same value for both speeds ... */ + dev_qualifier.bMaxPacketSize0 = device_desc.bMaxPacketSize0; + + /* and that all endpoints are dual-speed */ + //hs_source_desc.bEndpointAddress = fs_source_desc.bEndpointAddress; + //hs_sink_desc.bEndpointAddress = fs_sink_desc.bEndpointAddress; +#endif + + usb_gadget_set_selfpowered (gadget); + + init_timer (&dev->resume); + dev->resume.function = zero_autoresume; + dev->resume.data = (unsigned long) dev; + + gadget->ep0->driver_data = dev; + + INFO (dev, "%s, version: " DRIVER_VERSION "\n", longname); + INFO (dev, "using %s, OUT %s IN %s\n", gadget->name, + EP_OUT_NAME, EP_IN_NAME); + + snprintf (manufacturer, sizeof manufacturer, + UTS_SYSNAME " " UTS_RELEASE " with %s", + gadget->name); + + return 0; + +enomem: + zero_unbind (gadget); + return -ENOMEM; +} + +/*-------------------------------------------------------------------------*/ + +static void +zero_suspend (struct usb_gadget *gadget) +{ + struct zero_dev *dev = get_gadget_data (gadget); + + if (gadget->speed == USB_SPEED_UNKNOWN) + return; + + if (autoresume) { + mod_timer (&dev->resume, jiffies + (HZ * autoresume)); + DBG (dev, "suspend, wakeup in %d seconds\n", autoresume); + } else + DBG (dev, "suspend\n"); +} + +static void +zero_resume (struct usb_gadget *gadget) +{ + struct zero_dev *dev = get_gadget_data (gadget); + + DBG (dev, "resume\n"); + del_timer (&dev->resume); +} + + +/*-------------------------------------------------------------------------*/ + +static struct usb_gadget_driver zero_driver = { +#ifdef CONFIG_USB_GADGET_DUALSPEED + .speed = USB_SPEED_HIGH, +#else + .speed = USB_SPEED_FULL, +#endif + .function = (char *) longname, + .bind = zero_bind, + .unbind = zero_unbind, + + .setup = zero_setup, + .disconnect = zero_disconnect, + + .suspend = zero_suspend, + .resume = zero_resume, + + .driver = { + .name = (char *) shortname, + // .shutdown = ... + // .suspend = ... + // .resume = ... + }, +}; + +MODULE_AUTHOR ("David Brownell"); +MODULE_LICENSE ("Dual BSD/GPL"); + +static struct proc_dir_entry *pdir, *pfile; + +static int isoc_read_data (char *page, char **start, + off_t off, int count, + int *eof, void *data) +{ + int i; + static int c = 0; + static int done = 0; + static int s = 0; + +/* + printk ("\ncount: %d\n", count); + printk ("rbuf_start: %d\n", rbuf_start); + printk ("rbuf_len: %d\n", rbuf_len); + printk ("off: %d\n", off); + printk ("start: %p\n\n", *start); +*/ + if (done) { + c = 0; + done = 0; + *eof = 1; + return 0; + } + + if (c == 0) { + if (rbuf_len == RBUF_LEN) + s = rbuf_start; + else s = 0; + } + + for (i=0; i= rbuf_len) { + *eof = 1; + done = 1; + } + + + return i; +} + +static int __init init (void) +{ + + int retval = 0; + + pdir = proc_mkdir("isoc_test", NULL); + if(pdir == NULL) { + retval = -ENOMEM; + printk("Error creating dir\n"); + goto done; + } + pdir->owner = THIS_MODULE; + + pfile = create_proc_read_entry("isoc_data", + 0444, pdir, + isoc_read_data, + NULL); + if (pfile == NULL) { + retval = -ENOMEM; + printk("Error creating file\n"); + goto no_file; + } + pfile->owner = THIS_MODULE; + + return usb_gadget_register_driver (&zero_driver); + + no_file: + remove_proc_entry("isoc_data", NULL); + done: + return retval; +} +module_init (init); + +static void __exit cleanup (void) +{ + + usb_gadget_unregister_driver (&zero_driver); + + remove_proc_entry("isoc_data", pdir); + remove_proc_entry("isoc_test", NULL); +} +module_exit (cleanup); diff --git a/drivers/usb/host/dwc_otg/dwc_cfi_common.h b/drivers/usb/host/dwc_otg/dwc_cfi_common.h new file mode 100644 index 0000000000000000000000000000000000000000..7770e201ad3bd877f1bb613284091301d084ade9 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_cfi_common.h @@ -0,0 +1,142 @@ +/* ========================================================================== + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +#if !defined(__DWC_CFI_COMMON_H__) +#define __DWC_CFI_COMMON_H__ + +//#include + +/** + * @file + * + * This file contains the CFI specific common constants, interfaces + * (functions and macros) and structures for Linux. No PCD specific + * data structure or definition is to be included in this file. + * + */ + +/** This is a request for all Core Features */ +#define VEN_CORE_GET_FEATURES 0xB1 + +/** This is a request to get the value of a specific Core Feature */ +#define VEN_CORE_GET_FEATURE 0xB2 + +/** This command allows the host to set the value of a specific Core Feature */ +#define VEN_CORE_SET_FEATURE 0xB3 + +/** This command allows the host to set the default values of + * either all or any specific Core Feature + */ +#define VEN_CORE_RESET_FEATURES 0xB4 + +/** This command forces the PCD to write the deferred values of a Core Features */ +#define VEN_CORE_ACTIVATE_FEATURES 0xB5 + +/** This request reads a DWORD value from a register at the specified offset */ +#define VEN_CORE_READ_REGISTER 0xB6 + +/** This request writes a DWORD value into a register at the specified offset */ +#define VEN_CORE_WRITE_REGISTER 0xB7 + +/** This structure is the header of the Core Features dataset returned to + * the Host + */ +struct cfi_all_features_header { +/** The features header structure length is */ +#define CFI_ALL_FEATURES_HDR_LEN 8 + /** + * The total length of the features dataset returned to the Host + */ + uint16_t wTotalLen; + + /** + * CFI version number inBinary-Coded Decimal (i.e., 1.00 is 100H). + * This field identifies the version of the CFI Specification with which + * the device is compliant. + */ + uint16_t wVersion; + + /** The ID of the Core */ + uint16_t wCoreID; +#define CFI_CORE_ID_UDC 1 +#define CFI_CORE_ID_OTG 2 +#define CFI_CORE_ID_WUDEV 3 + + /** Number of features returned by VEN_CORE_GET_FEATURES request */ + uint16_t wNumFeatures; +} UPACKED; + +typedef struct cfi_all_features_header cfi_all_features_header_t; + +/** This structure is a header of the Core Feature descriptor dataset returned to + * the Host after the VEN_CORE_GET_FEATURES request + */ +struct cfi_feature_desc_header { +#define CFI_FEATURE_DESC_HDR_LEN 8 + + /** The feature ID */ + uint16_t wFeatureID; + + /** Length of this feature descriptor in bytes - including the + * length of the feature name string + */ + uint16_t wLength; + + /** The data length of this feature in bytes */ + uint16_t wDataLength; + + /** + * Attributes of this features + * D0: Access rights + * 0 - Read/Write + * 1 - Read only + */ + uint8_t bmAttributes; +#define CFI_FEATURE_ATTR_RO 1 +#define CFI_FEATURE_ATTR_RW 0 + + /** Length of the feature name in bytes */ + uint8_t bNameLen; + + /** The feature name buffer */ + //uint8_t *name; +} UPACKED; + +typedef struct cfi_feature_desc_header cfi_feature_desc_header_t; + +/** + * This structure describes a NULL terminated string referenced by its id field. + * It is very similar to usb_string structure but has the id field type set to 16-bit. + */ +struct cfi_string { + uint16_t id; + const uint8_t *s; +}; +typedef struct cfi_string cfi_string_t; + +#endif diff --git a/drivers/usb/host/dwc_otg/dwc_otg_adp.c b/drivers/usb/host/dwc_otg/dwc_otg_adp.c new file mode 100644 index 0000000000000000000000000000000000000000..ce0618dd3f4a6b2b2e7e65ba75f1214faca7c6f0 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_adp.c @@ -0,0 +1,854 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_adp.c $ + * $Revision: #12 $ + * $Date: 2011/10/26 $ + * $Change: 1873028 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +#include "dwc_os.h" +#include "dwc_otg_regs.h" +#include "dwc_otg_cil.h" +#include "dwc_otg_adp.h" + +/** @file + * + * This file contains the most of the Attach Detect Protocol implementation for + * the driver to support OTG Rev2.0. + * + */ + +void dwc_otg_adp_write_reg(dwc_otg_core_if_t * core_if, uint32_t value) +{ + adpctl_data_t adpctl; + + adpctl.d32 = value; + adpctl.b.ar = 0x2; + + DWC_WRITE_REG32(&core_if->core_global_regs->adpctl, adpctl.d32); + + while (adpctl.b.ar) { + adpctl.d32 = DWC_READ_REG32(&core_if->core_global_regs->adpctl); + } + +} + +/** + * Function is called to read ADP registers + */ +uint32_t dwc_otg_adp_read_reg(dwc_otg_core_if_t * core_if) +{ + adpctl_data_t adpctl; + + adpctl.d32 = 0; + adpctl.b.ar = 0x1; + + DWC_WRITE_REG32(&core_if->core_global_regs->adpctl, adpctl.d32); + + while (adpctl.b.ar) { + adpctl.d32 = DWC_READ_REG32(&core_if->core_global_regs->adpctl); + } + + return adpctl.d32; +} + +/** + * Function is called to read ADPCTL register and filter Write-clear bits + */ +uint32_t dwc_otg_adp_read_reg_filter(dwc_otg_core_if_t * core_if) +{ + adpctl_data_t adpctl; + + adpctl.d32 = dwc_otg_adp_read_reg(core_if); + adpctl.b.adp_tmout_int = 0; + adpctl.b.adp_prb_int = 0; + adpctl.b.adp_tmout_int = 0; + + return adpctl.d32; +} + +/** + * Function is called to write ADP registers + */ +void dwc_otg_adp_modify_reg(dwc_otg_core_if_t * core_if, uint32_t clr, + uint32_t set) +{ + dwc_otg_adp_write_reg(core_if, + (dwc_otg_adp_read_reg(core_if) & (~clr)) | set); +} + +static void adp_sense_timeout(void *ptr) +{ + dwc_otg_core_if_t *core_if = (dwc_otg_core_if_t *) ptr; + core_if->adp.sense_timer_started = 0; + DWC_PRINTF("ADP SENSE TIMEOUT\n"); + if (core_if->adp_enable) { + dwc_otg_adp_sense_stop(core_if); + dwc_otg_adp_probe_start(core_if); + } +} + +/** + * This function is called when the ADP vbus timer expires. Timeout is 1.1s. + */ +static void adp_vbuson_timeout(void *ptr) +{ + gpwrdn_data_t gpwrdn; + dwc_otg_core_if_t *core_if = (dwc_otg_core_if_t *) ptr; + hprt0_data_t hprt0 = {.d32 = 0 }; + pcgcctl_data_t pcgcctl = {.d32 = 0 }; + DWC_PRINTF("%s: 1.1 seconds expire after turning on VBUS\n",__FUNCTION__); + if (core_if) { + core_if->adp.vbuson_timer_started = 0; + /* Turn off vbus */ + hprt0.b.prtpwr = 1; + DWC_MODIFY_REG32(core_if->host_if->hprt0, hprt0.d32, 0); + gpwrdn.d32 = 0; + + /* Power off the core */ + if (core_if->power_down == 2) { + /* Enable Wakeup Logic */ +// gpwrdn.b.wkupactiv = 1; + gpwrdn.b.pmuactv = 0; + gpwrdn.b.pwrdnrstn = 1; + gpwrdn.b.pwrdnclmp = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, + gpwrdn.d32); + + /* Suspend the Phy Clock */ + pcgcctl.b.stoppclk = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, 0, pcgcctl.d32); + + /* Switch on VDD */ +// gpwrdn.b.wkupactiv = 1; + gpwrdn.b.pmuactv = 1; + gpwrdn.b.pwrdnrstn = 1; + gpwrdn.b.pwrdnclmp = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, + gpwrdn.d32); + } else { + /* Enable Power Down Logic */ + gpwrdn.b.pmuintsel = 1; + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32); + } + + /* Power off the core */ + if (core_if->power_down == 2) { + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnswtch = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, + gpwrdn.d32, 0); + } + + /* Unmask SRP detected interrupt from Power Down Logic */ + gpwrdn.d32 = 0; + gpwrdn.b.srp_det_msk = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32); + + dwc_otg_adp_probe_start(core_if); + dwc_otg_dump_global_registers(core_if); + dwc_otg_dump_host_registers(core_if); + } + +} + +/** + * Start the ADP Initial Probe timer to detect if Port Connected interrupt is + * not asserted within 1.1 seconds. + * + * @param core_if the pointer to core_if strucure. + */ +void dwc_otg_adp_vbuson_timer_start(dwc_otg_core_if_t * core_if) +{ + core_if->adp.vbuson_timer_started = 1; + if (core_if->adp.vbuson_timer) + { + DWC_PRINTF("SCHEDULING VBUSON TIMER\n"); + /* 1.1 secs + 60ms necessary for cil_hcd_start*/ + DWC_TIMER_SCHEDULE(core_if->adp.vbuson_timer, 1160); + } else { + DWC_WARN("VBUSON_TIMER = %p\n",core_if->adp.vbuson_timer); + } +} + +#if 0 +/** + * Masks all DWC OTG core interrupts + * + */ +static void mask_all_interrupts(dwc_otg_core_if_t * core_if) +{ + int i; + gahbcfg_data_t ahbcfg = {.d32 = 0 }; + + /* Mask Host Interrupts */ + + /* Clear and disable HCINTs */ + for (i = 0; i < core_if->core_params->host_channels; i++) { + DWC_WRITE_REG32(&core_if->host_if->hc_regs[i]->hcintmsk, 0); + DWC_WRITE_REG32(&core_if->host_if->hc_regs[i]->hcint, 0xFFFFFFFF); + + } + + /* Clear and disable HAINT */ + DWC_WRITE_REG32(&core_if->host_if->host_global_regs->haintmsk, 0x0000); + DWC_WRITE_REG32(&core_if->host_if->host_global_regs->haint, 0xFFFFFFFF); + + /* Mask Device Interrupts */ + if (!core_if->multiproc_int_enable) { + /* Clear and disable IN Endpoint interrupts */ + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->diepmsk, 0); + for (i = 0; i <= core_if->dev_if->num_in_eps; i++) { + DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[i]-> + diepint, 0xFFFFFFFF); + } + + /* Clear and disable OUT Endpoint interrupts */ + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->doepmsk, 0); + for (i = 0; i <= core_if->dev_if->num_out_eps; i++) { + DWC_WRITE_REG32(&core_if->dev_if->out_ep_regs[i]-> + doepint, 0xFFFFFFFF); + } + + /* Clear and disable DAINT */ + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->daint, + 0xFFFFFFFF); + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->daintmsk, 0); + } else { + for (i = 0; i < core_if->dev_if->num_in_eps; ++i) { + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs-> + diepeachintmsk[i], 0); + DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[i]-> + diepint, 0xFFFFFFFF); + } + + for (i = 0; i < core_if->dev_if->num_out_eps; ++i) { + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs-> + doepeachintmsk[i], 0); + DWC_WRITE_REG32(&core_if->dev_if->out_ep_regs[i]-> + doepint, 0xFFFFFFFF); + } + + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->deachintmsk, + 0); + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->deachint, + 0xFFFFFFFF); + + } + + /* Disable interrupts */ + ahbcfg.b.glblintrmsk = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gahbcfg, ahbcfg.d32, 0); + + /* Disable all interrupts. */ + DWC_WRITE_REG32(&core_if->core_global_regs->gintmsk, 0); + + /* Clear any pending interrupts */ + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, 0xFFFFFFFF); + + /* Clear any pending OTG Interrupts */ + DWC_WRITE_REG32(&core_if->core_global_regs->gotgint, 0xFFFFFFFF); +} + +/** + * Unmask Port Connection Detected interrupt + * + */ +static void unmask_conn_det_intr(dwc_otg_core_if_t * core_if) +{ + gintmsk_data_t gintmsk = {.d32 = 0,.b.portintr = 1 }; + + DWC_WRITE_REG32(&core_if->core_global_regs->gintmsk, gintmsk.d32); +} +#endif + +/** + * Starts the ADP Probing + * + * @param core_if the pointer to core_if structure. + */ +uint32_t dwc_otg_adp_probe_start(dwc_otg_core_if_t * core_if) +{ + + adpctl_data_t adpctl = {.d32 = 0}; + gpwrdn_data_t gpwrdn; +#if 0 + adpctl_data_t adpctl_int = {.d32 = 0, .b.adp_prb_int = 1, + .b.adp_sns_int = 1, b.adp_tmout_int}; +#endif + dwc_otg_disable_global_interrupts(core_if); + DWC_PRINTF("ADP Probe Start\n"); + core_if->adp.probe_enabled = 1; + + adpctl.b.adpres = 1; + dwc_otg_adp_write_reg(core_if, adpctl.d32); + + while (adpctl.b.adpres) { + adpctl.d32 = dwc_otg_adp_read_reg(core_if); + } + + adpctl.d32 = 0; + gpwrdn.d32 = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn); + + /* In Host mode unmask SRP detected interrupt */ + gpwrdn.d32 = 0; + gpwrdn.b.sts_chngint_msk = 1; + if (!gpwrdn.b.idsts) { + gpwrdn.b.srp_det_msk = 1; + } + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32); + + adpctl.b.adp_tmout_int_msk = 1; + adpctl.b.adp_prb_int_msk = 1; + adpctl.b.prb_dschg = 1; + adpctl.b.prb_delta = 1; + adpctl.b.prb_per = 1; + adpctl.b.adpen = 1; + adpctl.b.enaprb = 1; + + dwc_otg_adp_write_reg(core_if, adpctl.d32); + DWC_PRINTF("ADP Probe Finish\n"); + return 0; +} + +/** + * Starts the ADP Sense timer to detect if ADP Sense interrupt is not asserted + * within 3 seconds. + * + * @param core_if the pointer to core_if strucure. + */ +void dwc_otg_adp_sense_timer_start(dwc_otg_core_if_t * core_if) +{ + core_if->adp.sense_timer_started = 1; + DWC_TIMER_SCHEDULE(core_if->adp.sense_timer, 3000 /* 3 secs */ ); +} + +/** + * Starts the ADP Sense + * + * @param core_if the pointer to core_if strucure. + */ +uint32_t dwc_otg_adp_sense_start(dwc_otg_core_if_t * core_if) +{ + adpctl_data_t adpctl; + + DWC_PRINTF("ADP Sense Start\n"); + + /* Unmask ADP sense interrupt and mask all other from the core */ + adpctl.d32 = dwc_otg_adp_read_reg_filter(core_if); + adpctl.b.adp_sns_int_msk = 1; + dwc_otg_adp_write_reg(core_if, adpctl.d32); + dwc_otg_disable_global_interrupts(core_if); // vahrama + + /* Set ADP reset bit*/ + adpctl.d32 = dwc_otg_adp_read_reg_filter(core_if); + adpctl.b.adpres = 1; + dwc_otg_adp_write_reg(core_if, adpctl.d32); + + while (adpctl.b.adpres) { + adpctl.d32 = dwc_otg_adp_read_reg(core_if); + } + + adpctl.b.adpres = 0; + adpctl.b.adpen = 1; + adpctl.b.enasns = 1; + dwc_otg_adp_write_reg(core_if, adpctl.d32); + + dwc_otg_adp_sense_timer_start(core_if); + + return 0; +} + +/** + * Stops the ADP Probing + * + * @param core_if the pointer to core_if strucure. + */ +uint32_t dwc_otg_adp_probe_stop(dwc_otg_core_if_t * core_if) +{ + + adpctl_data_t adpctl; + DWC_PRINTF("Stop ADP probe\n"); + core_if->adp.probe_enabled = 0; + core_if->adp.probe_counter = 0; + adpctl.d32 = dwc_otg_adp_read_reg(core_if); + + adpctl.b.adpen = 0; + adpctl.b.adp_prb_int = 1; + adpctl.b.adp_tmout_int = 1; + adpctl.b.adp_sns_int = 1; + dwc_otg_adp_write_reg(core_if, adpctl.d32); + + return 0; +} + +/** + * Stops the ADP Sensing + * + * @param core_if the pointer to core_if strucure. + */ +uint32_t dwc_otg_adp_sense_stop(dwc_otg_core_if_t * core_if) +{ + adpctl_data_t adpctl; + + core_if->adp.sense_enabled = 0; + + adpctl.d32 = dwc_otg_adp_read_reg_filter(core_if); + adpctl.b.enasns = 0; + adpctl.b.adp_sns_int = 1; + dwc_otg_adp_write_reg(core_if, adpctl.d32); + + return 0; +} + +/** + * Called to turn on the VBUS after initial ADP probe in host mode. + * If port power was already enabled in cil_hcd_start function then + * only schedule a timer. + * + * @param core_if the pointer to core_if structure. + */ +void dwc_otg_adp_turnon_vbus(dwc_otg_core_if_t * core_if) +{ + hprt0_data_t hprt0 = {.d32 = 0 }; + hprt0.d32 = dwc_otg_read_hprt0(core_if); + DWC_PRINTF("Turn on VBUS for 1.1s, port power is %d\n", hprt0.b.prtpwr); + + if (hprt0.b.prtpwr == 0) { + hprt0.b.prtpwr = 1; + //DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + } + + dwc_otg_adp_vbuson_timer_start(core_if); +} + +/** + * Called right after driver is loaded + * to perform initial actions for ADP + * + * @param core_if the pointer to core_if structure. + * @param is_host - flag for current mode of operation either from GINTSTS or GPWRDN + */ +void dwc_otg_adp_start(dwc_otg_core_if_t * core_if, uint8_t is_host) +{ + gpwrdn_data_t gpwrdn; + + DWC_PRINTF("ADP Initial Start\n"); + core_if->adp.adp_started = 1; + + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, 0xFFFFFFFF); + dwc_otg_disable_global_interrupts(core_if); + if (is_host) { + DWC_PRINTF("HOST MODE\n"); + /* Enable Power Down Logic Interrupt*/ + gpwrdn.d32 = 0; + gpwrdn.b.pmuintsel = 1; + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32); + /* Initialize first ADP probe to obtain Ramp Time value */ + core_if->adp.initial_probe = 1; + dwc_otg_adp_probe_start(core_if); + } else { + gotgctl_data_t gotgctl; + gotgctl.d32 = DWC_READ_REG32(&core_if->core_global_regs->gotgctl); + DWC_PRINTF("DEVICE MODE\n"); + if (gotgctl.b.bsesvld == 0) { + /* Enable Power Down Logic Interrupt*/ + gpwrdn.d32 = 0; + DWC_PRINTF("VBUS is not valid - start ADP probe\n"); + gpwrdn.b.pmuintsel = 1; + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32); + core_if->adp.initial_probe = 1; + dwc_otg_adp_probe_start(core_if); + } else { + DWC_PRINTF("VBUS is valid - initialize core as a Device\n"); + core_if->op_state = B_PERIPHERAL; + dwc_otg_core_init(core_if); + dwc_otg_enable_global_interrupts(core_if); + cil_pcd_start(core_if); + dwc_otg_dump_global_registers(core_if); + dwc_otg_dump_dev_registers(core_if); + } + } +} + +void dwc_otg_adp_init(dwc_otg_core_if_t * core_if) +{ + core_if->adp.adp_started = 0; + core_if->adp.initial_probe = 0; + core_if->adp.probe_timer_values[0] = -1; + core_if->adp.probe_timer_values[1] = -1; + core_if->adp.probe_enabled = 0; + core_if->adp.sense_enabled = 0; + core_if->adp.sense_timer_started = 0; + core_if->adp.vbuson_timer_started = 0; + core_if->adp.probe_counter = 0; + core_if->adp.gpwrdn = 0; + core_if->adp.attached = DWC_OTG_ADP_UNKOWN; + /* Initialize timers */ + core_if->adp.sense_timer = + DWC_TIMER_ALLOC("ADP SENSE TIMER", adp_sense_timeout, core_if); + core_if->adp.vbuson_timer = + DWC_TIMER_ALLOC("ADP VBUS ON TIMER", adp_vbuson_timeout, core_if); + if (!core_if->adp.sense_timer || !core_if->adp.vbuson_timer) + { + DWC_ERROR("Could not allocate memory for ADP timers\n"); + } +} + +void dwc_otg_adp_remove(dwc_otg_core_if_t * core_if) +{ + gpwrdn_data_t gpwrdn = { .d32 = 0 }; + gpwrdn.b.pmuintsel = 1; + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + + if (core_if->adp.probe_enabled) + dwc_otg_adp_probe_stop(core_if); + if (core_if->adp.sense_enabled) + dwc_otg_adp_sense_stop(core_if); + if (core_if->adp.sense_timer_started) + DWC_TIMER_CANCEL(core_if->adp.sense_timer); + if (core_if->adp.vbuson_timer_started) + DWC_TIMER_CANCEL(core_if->adp.vbuson_timer); + DWC_TIMER_FREE(core_if->adp.sense_timer); + DWC_TIMER_FREE(core_if->adp.vbuson_timer); +} + +///////////////////////////////////////////////////////////////////// +////////////// ADP Interrupt Handlers /////////////////////////////// +///////////////////////////////////////////////////////////////////// +/** + * This function sets Ramp Timer values + */ +static uint32_t set_timer_value(dwc_otg_core_if_t * core_if, uint32_t val) +{ + if (core_if->adp.probe_timer_values[0] == -1) { + core_if->adp.probe_timer_values[0] = val; + core_if->adp.probe_timer_values[1] = -1; + return 1; + } else { + core_if->adp.probe_timer_values[1] = + core_if->adp.probe_timer_values[0]; + core_if->adp.probe_timer_values[0] = val; + return 0; + } +} + +/** + * This function compares Ramp Timer values + */ +static uint32_t compare_timer_values(dwc_otg_core_if_t * core_if) +{ + uint32_t diff; + if (core_if->adp.probe_timer_values[0]>=core_if->adp.probe_timer_values[1]) + diff = core_if->adp.probe_timer_values[0]-core_if->adp.probe_timer_values[1]; + else + diff = core_if->adp.probe_timer_values[1]-core_if->adp.probe_timer_values[0]; + if(diff < 2) { + return 0; + } else { + return 1; + } +} + +/** + * This function handles ADP Probe Interrupts + */ +static int32_t dwc_otg_adp_handle_prb_intr(dwc_otg_core_if_t * core_if, + uint32_t val) +{ + adpctl_data_t adpctl = {.d32 = 0 }; + gpwrdn_data_t gpwrdn, temp; + adpctl.d32 = val; + + temp.d32 = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn); + core_if->adp.probe_counter++; + core_if->adp.gpwrdn = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn); + if (adpctl.b.rtim == 0 && !temp.b.idsts){ + DWC_PRINTF("RTIM value is 0\n"); + goto exit; + } + if (set_timer_value(core_if, adpctl.b.rtim) && + core_if->adp.initial_probe) { + core_if->adp.initial_probe = 0; + dwc_otg_adp_probe_stop(core_if); + gpwrdn.d32 = 0; + gpwrdn.b.pmuactv = 1; + gpwrdn.b.pmuintsel = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, 0xFFFFFFFF); + + /* check which value is for device mode and which for Host mode */ + if (!temp.b.idsts) { /* considered host mode value is 0 */ + /* + * Turn on VBUS after initial ADP probe. + */ + core_if->op_state = A_HOST; + dwc_otg_enable_global_interrupts(core_if); + DWC_SPINUNLOCK(core_if->lock); + cil_hcd_start(core_if); + dwc_otg_adp_turnon_vbus(core_if); + DWC_SPINLOCK(core_if->lock); + } else { + /* + * Initiate SRP after initial ADP probe. + */ + dwc_otg_enable_global_interrupts(core_if); + dwc_otg_initiate_srp(core_if); + } + } else if (core_if->adp.probe_counter > 2){ + gpwrdn.d32 = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn); + if (compare_timer_values(core_if)) { + DWC_PRINTF("Difference in timer values !!! \n"); +// core_if->adp.attached = DWC_OTG_ADP_ATTACHED; + dwc_otg_adp_probe_stop(core_if); + + /* Power on the core */ + if (core_if->power_down == 2) { + gpwrdn.b.pwrdnswtch = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs-> + gpwrdn, 0, gpwrdn.d32); + } + + /* check which value is for device mode and which for Host mode */ + if (!temp.b.idsts) { /* considered host mode value is 0 */ + /* Disable Interrupt from Power Down Logic */ + gpwrdn.d32 = 0; + gpwrdn.b.pmuintsel = 1; + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs-> + gpwrdn, gpwrdn.d32, 0); + + /* + * Initialize the Core for Host mode. + */ + core_if->op_state = A_HOST; + dwc_otg_core_init(core_if); + dwc_otg_enable_global_interrupts(core_if); + cil_hcd_start(core_if); + } else { + gotgctl_data_t gotgctl; + /* Mask SRP detected interrupt from Power Down Logic */ + gpwrdn.d32 = 0; + gpwrdn.b.srp_det_msk = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs-> + gpwrdn, gpwrdn.d32, 0); + + /* Disable Power Down Logic */ + gpwrdn.d32 = 0; + gpwrdn.b.pmuintsel = 1; + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs-> + gpwrdn, gpwrdn.d32, 0); + + /* + * Initialize the Core for Device mode. + */ + core_if->op_state = B_PERIPHERAL; + dwc_otg_core_init(core_if); + dwc_otg_enable_global_interrupts(core_if); + cil_pcd_start(core_if); + + gotgctl.d32 = DWC_READ_REG32(&core_if->core_global_regs->gotgctl); + if (!gotgctl.b.bsesvld) { + dwc_otg_initiate_srp(core_if); + } + } + } + if (core_if->power_down == 2) { + if (gpwrdn.b.bsessvld) { + /* Mask SRP detected interrupt from Power Down Logic */ + gpwrdn.d32 = 0; + gpwrdn.b.srp_det_msk = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + + /* Disable Power Down Logic */ + gpwrdn.d32 = 0; + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + + /* + * Initialize the Core for Device mode. + */ + core_if->op_state = B_PERIPHERAL; + dwc_otg_core_init(core_if); + dwc_otg_enable_global_interrupts(core_if); + cil_pcd_start(core_if); + } + } + } +exit: + /* Clear interrupt */ + adpctl.d32 = dwc_otg_adp_read_reg(core_if); + adpctl.b.adp_prb_int = 1; + dwc_otg_adp_write_reg(core_if, adpctl.d32); + + return 0; +} + +/** + * This function hadles ADP Sense Interrupt + */ +static int32_t dwc_otg_adp_handle_sns_intr(dwc_otg_core_if_t * core_if) +{ + adpctl_data_t adpctl; + /* Stop ADP Sense timer */ + DWC_TIMER_CANCEL(core_if->adp.sense_timer); + + /* Restart ADP Sense timer */ + dwc_otg_adp_sense_timer_start(core_if); + + /* Clear interrupt */ + adpctl.d32 = dwc_otg_adp_read_reg(core_if); + adpctl.b.adp_sns_int = 1; + dwc_otg_adp_write_reg(core_if, adpctl.d32); + + return 0; +} + +/** + * This function handles ADP Probe Interrupts + */ +static int32_t dwc_otg_adp_handle_prb_tmout_intr(dwc_otg_core_if_t * core_if, + uint32_t val) +{ + adpctl_data_t adpctl = {.d32 = 0 }; + adpctl.d32 = val; + set_timer_value(core_if, adpctl.b.rtim); + + /* Clear interrupt */ + adpctl.d32 = dwc_otg_adp_read_reg(core_if); + adpctl.b.adp_tmout_int = 1; + dwc_otg_adp_write_reg(core_if, adpctl.d32); + + return 0; +} + +/** + * ADP Interrupt handler. + * + */ +int32_t dwc_otg_adp_handle_intr(dwc_otg_core_if_t * core_if) +{ + int retval = 0; + adpctl_data_t adpctl = {.d32 = 0}; + + adpctl.d32 = dwc_otg_adp_read_reg(core_if); + DWC_PRINTF("ADPCTL = %08x\n",adpctl.d32); + + if (adpctl.b.adp_sns_int & adpctl.b.adp_sns_int_msk) { + DWC_PRINTF("ADP Sense interrupt\n"); + retval |= dwc_otg_adp_handle_sns_intr(core_if); + } + if (adpctl.b.adp_tmout_int & adpctl.b.adp_tmout_int_msk) { + DWC_PRINTF("ADP timeout interrupt\n"); + retval |= dwc_otg_adp_handle_prb_tmout_intr(core_if, adpctl.d32); + } + if (adpctl.b.adp_prb_int & adpctl.b.adp_prb_int_msk) { + DWC_PRINTF("ADP Probe interrupt\n"); + adpctl.b.adp_prb_int = 1; + retval |= dwc_otg_adp_handle_prb_intr(core_if, adpctl.d32); + } + +// dwc_otg_adp_modify_reg(core_if, adpctl.d32, 0); + //dwc_otg_adp_write_reg(core_if, adpctl.d32); + DWC_PRINTF("RETURN FROM ADP ISR\n"); + + return retval; +} + +/** + * + * @param core_if Programming view of DWC_otg controller. + */ +int32_t dwc_otg_adp_handle_srp_intr(dwc_otg_core_if_t * core_if) +{ + +#ifndef DWC_HOST_ONLY + hprt0_data_t hprt0; + gpwrdn_data_t gpwrdn; + DWC_DEBUGPL(DBG_ANY, "++ Power Down Logic Session Request Interrupt++\n"); + + gpwrdn.d32 = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn); + /* check which value is for device mode and which for Host mode */ + if (!gpwrdn.b.idsts) { /* considered host mode value is 0 */ + DWC_PRINTF("SRP: Host mode\n"); + + if (core_if->adp_enable) { + dwc_otg_adp_probe_stop(core_if); + + /* Power on the core */ + if (core_if->power_down == 2) { + gpwrdn.b.pwrdnswtch = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs-> + gpwrdn, 0, gpwrdn.d32); + } + + core_if->op_state = A_HOST; + dwc_otg_core_init(core_if); + dwc_otg_enable_global_interrupts(core_if); + cil_hcd_start(core_if); + } + + /* Turn on the port power bit. */ + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtpwr = 1; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + + /* Start the Connection timer. So a message can be displayed + * if connect does not occur within 10 seconds. */ + cil_hcd_session_start(core_if); + } else { + DWC_PRINTF("SRP: Device mode %s\n", __FUNCTION__); + if (core_if->adp_enable) { + dwc_otg_adp_probe_stop(core_if); + + /* Power on the core */ + if (core_if->power_down == 2) { + gpwrdn.b.pwrdnswtch = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs-> + gpwrdn, 0, gpwrdn.d32); + } + + gpwrdn.d32 = 0; + gpwrdn.b.pmuactv = 0; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, + gpwrdn.d32); + + core_if->op_state = B_PERIPHERAL; + dwc_otg_core_init(core_if); + dwc_otg_enable_global_interrupts(core_if); + cil_pcd_start(core_if); + } + } +#endif + return 1; +} diff --git a/drivers/usb/host/dwc_otg/dwc_otg_adp.h b/drivers/usb/host/dwc_otg/dwc_otg_adp.h new file mode 100644 index 0000000000000000000000000000000000000000..4110b25d2002ed64a760cf41bbf81c903b5bc572 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_adp.h @@ -0,0 +1,80 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_adp.h $ + * $Revision: #7 $ + * $Date: 2011/10/24 $ + * $Change: 1871159 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +#ifndef __DWC_OTG_ADP_H__ +#define __DWC_OTG_ADP_H__ + +/** + * @file + * + * This file contains the Attach Detect Protocol interfaces and defines + * (functions) and structures for Linux. + * + */ + +#define DWC_OTG_ADP_UNATTACHED 0 +#define DWC_OTG_ADP_ATTACHED 1 +#define DWC_OTG_ADP_UNKOWN 2 + +typedef struct dwc_otg_adp { + uint32_t adp_started; + uint32_t initial_probe; + int32_t probe_timer_values[2]; + uint32_t probe_enabled; + uint32_t sense_enabled; + dwc_timer_t *sense_timer; + uint32_t sense_timer_started; + dwc_timer_t *vbuson_timer; + uint32_t vbuson_timer_started; + uint32_t attached; + uint32_t probe_counter; + uint32_t gpwrdn; +} dwc_otg_adp_t; + +/** + * Attach Detect Protocol functions + */ + +extern void dwc_otg_adp_write_reg(dwc_otg_core_if_t * core_if, uint32_t value); +extern uint32_t dwc_otg_adp_read_reg(dwc_otg_core_if_t * core_if); +extern uint32_t dwc_otg_adp_probe_start(dwc_otg_core_if_t * core_if); +extern uint32_t dwc_otg_adp_sense_start(dwc_otg_core_if_t * core_if); +extern uint32_t dwc_otg_adp_probe_stop(dwc_otg_core_if_t * core_if); +extern uint32_t dwc_otg_adp_sense_stop(dwc_otg_core_if_t * core_if); +extern void dwc_otg_adp_start(dwc_otg_core_if_t * core_if, uint8_t is_host); +extern void dwc_otg_adp_init(dwc_otg_core_if_t * core_if); +extern void dwc_otg_adp_remove(dwc_otg_core_if_t * core_if); +extern int32_t dwc_otg_adp_handle_intr(dwc_otg_core_if_t * core_if); +extern int32_t dwc_otg_adp_handle_srp_intr(dwc_otg_core_if_t * core_if); + +#endif //__DWC_OTG_ADP_H__ diff --git a/drivers/usb/host/dwc_otg/dwc_otg_attr.c b/drivers/usb/host/dwc_otg/dwc_otg_attr.c new file mode 100644 index 0000000000000000000000000000000000000000..9da0c92aaeca2fc393016442cc6578cb4a52c978 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_attr.c @@ -0,0 +1,1210 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_attr.c $ + * $Revision: #44 $ + * $Date: 2010/11/29 $ + * $Change: 1636033 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +/** @file + * + * The diagnostic interface will provide access to the controller for + * bringing up the hardware and testing. The Linux driver attributes + * feature will be used to provide the Linux Diagnostic + * Interface. These attributes are accessed through sysfs. + */ + +/** @page "Linux Module Attributes" + * + * The Linux module attributes feature is used to provide the Linux + * Diagnostic Interface. These attributes are accessed through sysfs. + * The diagnostic interface will provide access to the controller for + * bringing up the hardware and testing. + + The following table shows the attributes. + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
Name Description Access
mode Returns the current mode: 0 for device mode, 1 for host mode Read
hnpcapable Gets or sets the "HNP-capable" bit in the Core USB Configuraton Register. + Read returns the current value. Read/Write
srpcapable Gets or sets the "SRP-capable" bit in the Core USB Configuraton Register. + Read returns the current value. Read/Write
hsic_connect Gets or sets the "HSIC-Connect" bit in the GLPMCFG Register. + Read returns the current value. Read/Write
inv_sel_hsic Gets or sets the "Invert Select HSIC" bit in the GLPMFG Register. + Read returns the current value. Read/Write
hnp Initiates the Host Negotiation Protocol. Read returns the status. Read/Write
srp Initiates the Session Request Protocol. Read returns the status. Read/Write
buspower Gets or sets the Power State of the bus (0 - Off or 1 - On) Read/Write
bussuspend Suspends the USB bus. Read/Write
busconnected Gets the connection status of the bus Read
gotgctl Gets or sets the Core Control Status Register. Read/Write
gusbcfg Gets or sets the Core USB Configuration Register Read/Write
grxfsiz Gets or sets the Receive FIFO Size Register Read/Write
gnptxfsiz Gets or sets the non-periodic Transmit Size Register Read/Write
gpvndctl Gets or sets the PHY Vendor Control Register Read/Write
ggpio Gets the value in the lower 16-bits of the General Purpose IO Register + or sets the upper 16 bits. Read/Write
guid Gets or sets the value of the User ID Register Read/Write
gsnpsid Gets the value of the Synopsys ID Regester Read
devspeed Gets or sets the device speed setting in the DCFG register Read/Write
enumspeed Gets the device enumeration Speed. Read
hptxfsiz Gets the value of the Host Periodic Transmit FIFO Read
hprt0 Gets or sets the value in the Host Port Control and Status Register Read/Write
regoffset Sets the register offset for the next Register Access Read/Write
regvalue Gets or sets the value of the register at the offset in the regoffset attribute. Read/Write
remote_wakeup On read, shows the status of Remote Wakeup. On write, initiates a remote + wakeup of the host. When bit 0 is 1 and Remote Wakeup is enabled, the Remote + Wakeup signalling bit in the Device Control Register is set for 1 + milli-second. Read/Write
rem_wakeup_pwrdn On read, shows the status core - hibernated or not. On write, initiates + a remote wakeup of the device from Hibernation. Read/Write
mode_ch_tim_en This bit is used to enable or disable the host core to wait for 200 PHY + clock cycles at the end of Resume to change the opmode signal to the PHY to 00 + after Suspend or LPM. Read/Write
fr_interval On read, shows the value of HFIR Frame Interval. On write, dynamically + reload HFIR register during runtime. The application can write a value to this + register only after the Port Enable bit of the Host Port Control and Status + register (HPRT.PrtEnaPort) has been set Read/Write
disconnect_us On read, shows the status of disconnect_device_us. On write, sets disconnect_us + which causes soft disconnect for 100us. Applicable only for device mode of operation. Read/Write
regdump Dumps the contents of core registers. Read
spramdump Dumps the contents of core registers. Read
hcddump Dumps the current HCD state. Read
hcd_frrem Shows the average value of the Frame Remaining + field in the Host Frame Number/Frame Remaining register when an SOF interrupt + occurs. This can be used to determine the average interrupt latency. Also + shows the average Frame Remaining value for start_transfer and the "a" and + "b" sample points. The "a" and "b" sample points may be used during debugging + bto determine how long it takes to execute a section of the HCD code. Read
rd_reg_test Displays the time required to read the GNPTXFSIZ register many times + (the output shows the number of times the register is read). + Read
wr_reg_test Displays the time required to write the GNPTXFSIZ register many times + (the output shows the number of times the register is written). + Read
lpm_response Gets or sets lpm_response mode. Applicable only in device mode. + Write
sleep_status Shows sleep status of device. + Read
+ + Example usage: + To get the current mode: + cat /sys/devices/lm0/mode + + To power down the USB: + echo 0 > /sys/devices/lm0/buspower + */ + +#include "dwc_otg_os_dep.h" +#include "dwc_os.h" +#include "dwc_otg_driver.h" +#include "dwc_otg_attr.h" +#include "dwc_otg_core_if.h" +#include "dwc_otg_pcd_if.h" +#include "dwc_otg_hcd_if.h" + +/* + * MACROs for defining sysfs attribute + */ +#ifdef LM_INTERFACE + +#define DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW(_otg_attr_name_,_string_) \ +static ssize_t _otg_attr_name_##_show (struct device *_dev, struct device_attribute *attr, char *buf) \ +{ \ + struct lm_device *lm_dev = container_of(_dev, struct lm_device, dev); \ + dwc_otg_device_t *otg_dev = lm_get_drvdata(lm_dev); \ + uint32_t val; \ + val = dwc_otg_get_##_otg_attr_name_ (otg_dev->core_if); \ + return sprintf (buf, "%s = 0x%x\n", _string_, val); \ +} +#define DWC_OTG_DEVICE_ATTR_BITFIELD_STORE(_otg_attr_name_,_string_) \ +static ssize_t _otg_attr_name_##_store (struct device *_dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + struct lm_device *lm_dev = container_of(_dev, struct lm_device, dev); \ + dwc_otg_device_t *otg_dev = lm_get_drvdata(lm_dev); \ + uint32_t set = simple_strtoul(buf, NULL, 16); \ + dwc_otg_set_##_otg_attr_name_(otg_dev->core_if, set);\ + return count; \ +} + +#elif defined(PCI_INTERFACE) + +#define DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW(_otg_attr_name_,_string_) \ +static ssize_t _otg_attr_name_##_show (struct device *_dev, struct device_attribute *attr, char *buf) \ +{ \ + dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev); \ + uint32_t val; \ + val = dwc_otg_get_##_otg_attr_name_ (otg_dev->core_if); \ + return sprintf (buf, "%s = 0x%x\n", _string_, val); \ +} +#define DWC_OTG_DEVICE_ATTR_BITFIELD_STORE(_otg_attr_name_,_string_) \ +static ssize_t _otg_attr_name_##_store (struct device *_dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev); \ + uint32_t set = simple_strtoul(buf, NULL, 16); \ + dwc_otg_set_##_otg_attr_name_(otg_dev->core_if, set);\ + return count; \ +} + +#elif defined(PLATFORM_INTERFACE) + +#define DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW(_otg_attr_name_,_string_) \ +static ssize_t _otg_attr_name_##_show (struct device *_dev, struct device_attribute *attr, char *buf) \ +{ \ + struct platform_device *platform_dev = \ + container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(platform_dev); \ + uint32_t val; \ + DWC_PRINTF("%s(%p) -> platform_dev %p, otg_dev %p\n", \ + __func__, _dev, platform_dev, otg_dev); \ + val = dwc_otg_get_##_otg_attr_name_ (otg_dev->core_if); \ + return sprintf (buf, "%s = 0x%x\n", _string_, val); \ +} +#define DWC_OTG_DEVICE_ATTR_BITFIELD_STORE(_otg_attr_name_,_string_) \ +static ssize_t _otg_attr_name_##_store (struct device *_dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + struct platform_device *platform_dev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(platform_dev); \ + uint32_t set = simple_strtoul(buf, NULL, 16); \ + dwc_otg_set_##_otg_attr_name_(otg_dev->core_if, set);\ + return count; \ +} +#endif + +/* + * MACROs for defining sysfs attribute for 32-bit registers + */ +#ifdef LM_INTERFACE +#define DWC_OTG_DEVICE_ATTR_REG_SHOW(_otg_attr_name_,_string_) \ +static ssize_t _otg_attr_name_##_show (struct device *_dev, struct device_attribute *attr, char *buf) \ +{ \ + struct lm_device *lm_dev = container_of(_dev, struct lm_device, dev); \ + dwc_otg_device_t *otg_dev = lm_get_drvdata(lm_dev); \ + uint32_t val; \ + val = dwc_otg_get_##_otg_attr_name_ (otg_dev->core_if); \ + return sprintf (buf, "%s = 0x%08x\n", _string_, val); \ +} +#define DWC_OTG_DEVICE_ATTR_REG_STORE(_otg_attr_name_,_string_) \ +static ssize_t _otg_attr_name_##_store (struct device *_dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + struct lm_device *lm_dev = container_of(_dev, struct lm_device, dev); \ + dwc_otg_device_t *otg_dev = lm_get_drvdata(lm_dev); \ + uint32_t val = simple_strtoul(buf, NULL, 16); \ + dwc_otg_set_##_otg_attr_name_ (otg_dev->core_if, val); \ + return count; \ +} +#elif defined(PCI_INTERFACE) +#define DWC_OTG_DEVICE_ATTR_REG_SHOW(_otg_attr_name_,_string_) \ +static ssize_t _otg_attr_name_##_show (struct device *_dev, struct device_attribute *attr, char *buf) \ +{ \ + dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev); \ + uint32_t val; \ + val = dwc_otg_get_##_otg_attr_name_ (otg_dev->core_if); \ + return sprintf (buf, "%s = 0x%08x\n", _string_, val); \ +} +#define DWC_OTG_DEVICE_ATTR_REG_STORE(_otg_attr_name_,_string_) \ +static ssize_t _otg_attr_name_##_store (struct device *_dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev); \ + uint32_t val = simple_strtoul(buf, NULL, 16); \ + dwc_otg_set_##_otg_attr_name_ (otg_dev->core_if, val); \ + return count; \ +} + +#elif defined(PLATFORM_INTERFACE) +#include "dwc_otg_dbg.h" +#define DWC_OTG_DEVICE_ATTR_REG_SHOW(_otg_attr_name_,_string_) \ +static ssize_t _otg_attr_name_##_show (struct device *_dev, struct device_attribute *attr, char *buf) \ +{ \ + struct platform_device *platform_dev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(platform_dev); \ + uint32_t val; \ + DWC_PRINTF("%s(%p) -> platform_dev %p, otg_dev %p\n", \ + __func__, _dev, platform_dev, otg_dev); \ + val = dwc_otg_get_##_otg_attr_name_ (otg_dev->core_if); \ + return sprintf (buf, "%s = 0x%08x\n", _string_, val); \ +} +#define DWC_OTG_DEVICE_ATTR_REG_STORE(_otg_attr_name_,_string_) \ +static ssize_t _otg_attr_name_##_store (struct device *_dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + struct platform_device *platform_dev = container_of(_dev, struct platform_device, dev); \ + dwc_otg_device_t *otg_dev = platform_get_drvdata(platform_dev); \ + uint32_t val = simple_strtoul(buf, NULL, 16); \ + dwc_otg_set_##_otg_attr_name_ (otg_dev->core_if, val); \ + return count; \ +} + +#endif + +#define DWC_OTG_DEVICE_ATTR_BITFIELD_RW(_otg_attr_name_,_string_) \ +DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW(_otg_attr_name_,_string_) \ +DWC_OTG_DEVICE_ATTR_BITFIELD_STORE(_otg_attr_name_,_string_) \ +DEVICE_ATTR(_otg_attr_name_,0644,_otg_attr_name_##_show,_otg_attr_name_##_store); + +#define DWC_OTG_DEVICE_ATTR_BITFIELD_RO(_otg_attr_name_,_string_) \ +DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW(_otg_attr_name_,_string_) \ +DEVICE_ATTR(_otg_attr_name_,0444,_otg_attr_name_##_show,NULL); + +#define DWC_OTG_DEVICE_ATTR_REG32_RW(_otg_attr_name_,_addr_,_string_) \ +DWC_OTG_DEVICE_ATTR_REG_SHOW(_otg_attr_name_,_string_) \ +DWC_OTG_DEVICE_ATTR_REG_STORE(_otg_attr_name_,_string_) \ +DEVICE_ATTR(_otg_attr_name_,0644,_otg_attr_name_##_show,_otg_attr_name_##_store); + +#define DWC_OTG_DEVICE_ATTR_REG32_RO(_otg_attr_name_,_addr_,_string_) \ +DWC_OTG_DEVICE_ATTR_REG_SHOW(_otg_attr_name_,_string_) \ +DEVICE_ATTR(_otg_attr_name_,0444,_otg_attr_name_##_show,NULL); + +/** @name Functions for Show/Store of Attributes */ +/**@{*/ + +/** + * Helper function returning the otg_device structure of the given device + */ +static dwc_otg_device_t *dwc_otg_drvdev(struct device *_dev) +{ + dwc_otg_device_t *otg_dev; + DWC_OTG_GETDRVDEV(otg_dev, _dev); + return otg_dev; +} + +/** + * Show the register offset of the Register Access. + */ +static ssize_t regoffset_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + return snprintf(buf, sizeof("0xFFFFFFFF\n") + 1, "0x%08x\n", + otg_dev->os_dep.reg_offset); +} + +/** + * Set the register offset for the next Register Access Read/Write + */ +static ssize_t regoffset_store(struct device *_dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + uint32_t offset = simple_strtoul(buf, NULL, 16); +#if defined(LM_INTERFACE) || defined(PLATFORM_INTERFACE) + if (offset < SZ_256K) { +#elif defined(PCI_INTERFACE) + if (offset < 0x00040000) { +#endif + otg_dev->os_dep.reg_offset = offset; + } else { + dev_err(_dev, "invalid offset\n"); + } + + return count; +} + +DEVICE_ATTR(regoffset, S_IRUGO | S_IWUSR, regoffset_show, regoffset_store); + +/** + * Show the value of the register at the offset in the reg_offset + * attribute. + */ +static ssize_t regvalue_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + uint32_t val; + volatile uint32_t *addr; + + if (otg_dev->os_dep.reg_offset != 0xFFFFFFFF && 0 != otg_dev->os_dep.base) { + /* Calculate the address */ + addr = (uint32_t *) (otg_dev->os_dep.reg_offset + + (uint8_t *) otg_dev->os_dep.base); + val = DWC_READ_REG32(addr); + return snprintf(buf, + sizeof("Reg@0xFFFFFFFF = 0xFFFFFFFF\n") + 1, + "Reg@0x%06x = 0x%08x\n", otg_dev->os_dep.reg_offset, + val); + } else { + dev_err(_dev, "Invalid offset (0x%0x)\n", otg_dev->os_dep.reg_offset); + return sprintf(buf, "invalid offset\n"); + } +} + +/** + * Store the value in the register at the offset in the reg_offset + * attribute. + * + */ +static ssize_t regvalue_store(struct device *_dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + volatile uint32_t *addr; + uint32_t val = simple_strtoul(buf, NULL, 16); + //dev_dbg(_dev, "Offset=0x%08x Val=0x%08x\n", otg_dev->reg_offset, val); + if (otg_dev->os_dep.reg_offset != 0xFFFFFFFF && 0 != otg_dev->os_dep.base) { + /* Calculate the address */ + addr = (uint32_t *) (otg_dev->os_dep.reg_offset + + (uint8_t *) otg_dev->os_dep.base); + DWC_WRITE_REG32(addr, val); + } else { + dev_err(_dev, "Invalid Register Offset (0x%08x)\n", + otg_dev->os_dep.reg_offset); + } + return count; +} + +DEVICE_ATTR(regvalue, S_IRUGO | S_IWUSR, regvalue_show, regvalue_store); + +/* + * Attributes + */ +DWC_OTG_DEVICE_ATTR_BITFIELD_RO(mode, "Mode"); +DWC_OTG_DEVICE_ATTR_BITFIELD_RW(hnpcapable, "HNPCapable"); +DWC_OTG_DEVICE_ATTR_BITFIELD_RW(srpcapable, "SRPCapable"); +DWC_OTG_DEVICE_ATTR_BITFIELD_RW(hsic_connect, "HSIC Connect"); +DWC_OTG_DEVICE_ATTR_BITFIELD_RW(inv_sel_hsic, "Invert Select HSIC"); + +//DWC_OTG_DEVICE_ATTR_BITFIELD_RW(buspower,&(otg_dev->core_if->core_global_regs->gotgctl),(1<<8),8,"Mode"); +//DWC_OTG_DEVICE_ATTR_BITFIELD_RW(bussuspend,&(otg_dev->core_if->core_global_regs->gotgctl),(1<<8),8,"Mode"); +DWC_OTG_DEVICE_ATTR_BITFIELD_RO(busconnected, "Bus Connected"); + +DWC_OTG_DEVICE_ATTR_REG32_RW(gotgctl, 0, "GOTGCTL"); +DWC_OTG_DEVICE_ATTR_REG32_RW(gusbcfg, + &(otg_dev->core_if->core_global_regs->gusbcfg), + "GUSBCFG"); +DWC_OTG_DEVICE_ATTR_REG32_RW(grxfsiz, + &(otg_dev->core_if->core_global_regs->grxfsiz), + "GRXFSIZ"); +DWC_OTG_DEVICE_ATTR_REG32_RW(gnptxfsiz, + &(otg_dev->core_if->core_global_regs->gnptxfsiz), + "GNPTXFSIZ"); +DWC_OTG_DEVICE_ATTR_REG32_RW(gpvndctl, + &(otg_dev->core_if->core_global_regs->gpvndctl), + "GPVNDCTL"); +DWC_OTG_DEVICE_ATTR_REG32_RW(ggpio, + &(otg_dev->core_if->core_global_regs->ggpio), + "GGPIO"); +DWC_OTG_DEVICE_ATTR_REG32_RW(guid, &(otg_dev->core_if->core_global_regs->guid), + "GUID"); +DWC_OTG_DEVICE_ATTR_REG32_RO(gsnpsid, + &(otg_dev->core_if->core_global_regs->gsnpsid), + "GSNPSID"); +DWC_OTG_DEVICE_ATTR_BITFIELD_RW(devspeed, "Device Speed"); +DWC_OTG_DEVICE_ATTR_BITFIELD_RO(enumspeed, "Device Enumeration Speed"); + +DWC_OTG_DEVICE_ATTR_REG32_RO(hptxfsiz, + &(otg_dev->core_if->core_global_regs->hptxfsiz), + "HPTXFSIZ"); +DWC_OTG_DEVICE_ATTR_REG32_RW(hprt0, otg_dev->core_if->host_if->hprt0, "HPRT0"); + +/** + * @todo Add code to initiate the HNP. + */ +/** + * Show the HNP status bit + */ +static ssize_t hnp_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + return sprintf(buf, "HstNegScs = 0x%x\n", + dwc_otg_get_hnpstatus(otg_dev->core_if)); +} + +/** + * Set the HNP Request bit + */ +static ssize_t hnp_store(struct device *_dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + uint32_t in = simple_strtoul(buf, NULL, 16); + dwc_otg_set_hnpreq(otg_dev->core_if, in); + return count; +} + +DEVICE_ATTR(hnp, 0644, hnp_show, hnp_store); + +/** + * @todo Add code to initiate the SRP. + */ +/** + * Show the SRP status bit + */ +static ssize_t srp_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ +#ifndef DWC_HOST_ONLY + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + return sprintf(buf, "SesReqScs = 0x%x\n", + dwc_otg_get_srpstatus(otg_dev->core_if)); +#else + return sprintf(buf, "Host Only Mode!\n"); +#endif +} + +/** + * Set the SRP Request bit + */ +static ssize_t srp_store(struct device *_dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ +#ifndef DWC_HOST_ONLY + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + dwc_otg_pcd_initiate_srp(otg_dev->pcd); +#endif + return count; +} + +DEVICE_ATTR(srp, 0644, srp_show, srp_store); + +/** + * @todo Need to do more for power on/off? + */ +/** + * Show the Bus Power status + */ +static ssize_t buspower_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + return sprintf(buf, "Bus Power = 0x%x\n", + dwc_otg_get_prtpower(otg_dev->core_if)); +} + +/** + * Set the Bus Power status + */ +static ssize_t buspower_store(struct device *_dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + uint32_t on = simple_strtoul(buf, NULL, 16); + dwc_otg_set_prtpower(otg_dev->core_if, on); + return count; +} + +DEVICE_ATTR(buspower, 0644, buspower_show, buspower_store); + +/** + * @todo Need to do more for suspend? + */ +/** + * Show the Bus Suspend status + */ +static ssize_t bussuspend_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + return sprintf(buf, "Bus Suspend = 0x%x\n", + dwc_otg_get_prtsuspend(otg_dev->core_if)); +} + +/** + * Set the Bus Suspend status + */ +static ssize_t bussuspend_store(struct device *_dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + uint32_t in = simple_strtoul(buf, NULL, 16); + dwc_otg_set_prtsuspend(otg_dev->core_if, in); + return count; +} + +DEVICE_ATTR(bussuspend, 0644, bussuspend_show, bussuspend_store); + +/** + * Show the Mode Change Ready Timer status + */ +static ssize_t mode_ch_tim_en_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + return sprintf(buf, "Mode Change Ready Timer Enable = 0x%x\n", + dwc_otg_get_mode_ch_tim(otg_dev->core_if)); +} + +/** + * Set the Mode Change Ready Timer status + */ +static ssize_t mode_ch_tim_en_store(struct device *_dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + uint32_t in = simple_strtoul(buf, NULL, 16); + dwc_otg_set_mode_ch_tim(otg_dev->core_if, in); + return count; +} + +DEVICE_ATTR(mode_ch_tim_en, 0644, mode_ch_tim_en_show, mode_ch_tim_en_store); + +/** + * Show the value of HFIR Frame Interval bitfield + */ +static ssize_t fr_interval_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + return sprintf(buf, "Frame Interval = 0x%x\n", + dwc_otg_get_fr_interval(otg_dev->core_if)); +} + +/** + * Set the HFIR Frame Interval value + */ +static ssize_t fr_interval_store(struct device *_dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + uint32_t in = simple_strtoul(buf, NULL, 10); + dwc_otg_set_fr_interval(otg_dev->core_if, in); + return count; +} + +DEVICE_ATTR(fr_interval, 0644, fr_interval_show, fr_interval_store); + +/** + * Show the status of Remote Wakeup. + */ +static ssize_t remote_wakeup_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ +#ifndef DWC_HOST_ONLY + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + + return sprintf(buf, + "Remote Wakeup Sig = %d Enabled = %d LPM Remote Wakeup = %d\n", + dwc_otg_get_remotewakesig(otg_dev->core_if), + dwc_otg_pcd_get_rmwkup_enable(otg_dev->pcd), + dwc_otg_get_lpm_remotewakeenabled(otg_dev->core_if)); +#else + return sprintf(buf, "Host Only Mode!\n"); +#endif /* DWC_HOST_ONLY */ +} + +/** + * Initiate a remote wakeup of the host. The Device control register + * Remote Wakeup Signal bit is written if the PCD Remote wakeup enable + * flag is set. + * + */ +static ssize_t remote_wakeup_store(struct device *_dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ +#ifndef DWC_HOST_ONLY + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + uint32_t val = simple_strtoul(buf, NULL, 16); + + if (val & 1) { + dwc_otg_pcd_remote_wakeup(otg_dev->pcd, 1); + } else { + dwc_otg_pcd_remote_wakeup(otg_dev->pcd, 0); + } +#endif /* DWC_HOST_ONLY */ + return count; +} + +DEVICE_ATTR(remote_wakeup, S_IRUGO | S_IWUSR, remote_wakeup_show, + remote_wakeup_store); + +/** + * Show the whether core is hibernated or not. + */ +static ssize_t rem_wakeup_pwrdn_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ +#ifndef DWC_HOST_ONLY + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + + if (dwc_otg_get_core_state(otg_dev->core_if)) { + DWC_PRINTF("Core is in hibernation\n"); + } else { + DWC_PRINTF("Core is not in hibernation\n"); + } +#endif /* DWC_HOST_ONLY */ + return 0; +} + +extern int dwc_otg_device_hibernation_restore(dwc_otg_core_if_t * core_if, + int rem_wakeup, int reset); + +/** + * Initiate a remote wakeup of the device to exit from hibernation. + */ +static ssize_t rem_wakeup_pwrdn_store(struct device *_dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ +#ifndef DWC_HOST_ONLY + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + dwc_otg_device_hibernation_restore(otg_dev->core_if, 1, 0); +#endif + return count; +} + +DEVICE_ATTR(rem_wakeup_pwrdn, S_IRUGO | S_IWUSR, rem_wakeup_pwrdn_show, + rem_wakeup_pwrdn_store); + +static ssize_t disconnect_us(struct device *_dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + +#ifndef DWC_HOST_ONLY + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + uint32_t val = simple_strtoul(buf, NULL, 16); + DWC_PRINTF("The Passed value is %04x\n", val); + + dwc_otg_pcd_disconnect_us(otg_dev->pcd, 50); + +#endif /* DWC_HOST_ONLY */ + return count; +} + +DEVICE_ATTR(disconnect_us, S_IWUSR, 0, disconnect_us); + +/** + * Dump global registers and either host or device registers (depending on the + * current mode of the core). + */ +static ssize_t regdump_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + + dwc_otg_dump_global_registers(otg_dev->core_if); + if (dwc_otg_is_host_mode(otg_dev->core_if)) { + dwc_otg_dump_host_registers(otg_dev->core_if); + } else { + dwc_otg_dump_dev_registers(otg_dev->core_if); + + } + return sprintf(buf, "Register Dump\n"); +} + +DEVICE_ATTR(regdump, S_IRUGO, regdump_show, 0); + +/** + * Dump global registers and either host or device registers (depending on the + * current mode of the core). + */ +static ssize_t spramdump_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + + //dwc_otg_dump_spram(otg_dev->core_if); + + return sprintf(buf, "SPRAM Dump\n"); +} + +DEVICE_ATTR(spramdump, S_IRUGO, spramdump_show, 0); + +/** + * Dump the current hcd state. + */ +static ssize_t hcddump_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ +#ifndef DWC_DEVICE_ONLY + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + dwc_otg_hcd_dump_state(otg_dev->hcd); +#endif /* DWC_DEVICE_ONLY */ + return sprintf(buf, "HCD Dump\n"); +} + +DEVICE_ATTR(hcddump, S_IRUGO, hcddump_show, 0); + +/** + * Dump the average frame remaining at SOF. This can be used to + * determine average interrupt latency. Frame remaining is also shown for + * start transfer and two additional sample points. + */ +static ssize_t hcd_frrem_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ +#ifndef DWC_DEVICE_ONLY + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + + dwc_otg_hcd_dump_frrem(otg_dev->hcd); +#endif /* DWC_DEVICE_ONLY */ + return sprintf(buf, "HCD Dump Frame Remaining\n"); +} + +DEVICE_ATTR(hcd_frrem, S_IRUGO, hcd_frrem_show, 0); + +/** + * Displays the time required to read the GNPTXFSIZ register many times (the + * output shows the number of times the register is read). + */ +#define RW_REG_COUNT 10000000 +#define MSEC_PER_JIFFIE 1000/HZ +static ssize_t rd_reg_test_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + int i; + int time; + int start_jiffies; + + printk("HZ %d, MSEC_PER_JIFFIE %d, loops_per_jiffy %lu\n", + HZ, MSEC_PER_JIFFIE, loops_per_jiffy); + start_jiffies = jiffies; + for (i = 0; i < RW_REG_COUNT; i++) { + dwc_otg_get_gnptxfsiz(otg_dev->core_if); + } + time = jiffies - start_jiffies; + return sprintf(buf, + "Time to read GNPTXFSIZ reg %d times: %d msecs (%d jiffies)\n", + RW_REG_COUNT, time * MSEC_PER_JIFFIE, time); +} + +DEVICE_ATTR(rd_reg_test, S_IRUGO, rd_reg_test_show, 0); + +/** + * Displays the time required to write the GNPTXFSIZ register many times (the + * output shows the number of times the register is written). + */ +static ssize_t wr_reg_test_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + uint32_t reg_val; + int i; + int time; + int start_jiffies; + + printk("HZ %d, MSEC_PER_JIFFIE %d, loops_per_jiffy %lu\n", + HZ, MSEC_PER_JIFFIE, loops_per_jiffy); + reg_val = dwc_otg_get_gnptxfsiz(otg_dev->core_if); + start_jiffies = jiffies; + for (i = 0; i < RW_REG_COUNT; i++) { + dwc_otg_set_gnptxfsiz(otg_dev->core_if, reg_val); + } + time = jiffies - start_jiffies; + return sprintf(buf, + "Time to write GNPTXFSIZ reg %d times: %d msecs (%d jiffies)\n", + RW_REG_COUNT, time * MSEC_PER_JIFFIE, time); +} + +DEVICE_ATTR(wr_reg_test, S_IRUGO, wr_reg_test_show, 0); + +#ifdef CONFIG_USB_DWC_OTG_LPM + +/** +* Show the lpm_response attribute. +*/ +static ssize_t lpmresp_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + + if (!dwc_otg_get_param_lpm_enable(otg_dev->core_if)) + return sprintf(buf, "** LPM is DISABLED **\n"); + + if (!dwc_otg_is_device_mode(otg_dev->core_if)) { + return sprintf(buf, "** Current mode is not device mode\n"); + } + return sprintf(buf, "lpm_response = %d\n", + dwc_otg_get_lpmresponse(otg_dev->core_if)); +} + +/** +* Store the lpm_response attribute. +*/ +static ssize_t lpmresp_store(struct device *_dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + uint32_t val = simple_strtoul(buf, NULL, 16); + + if (!dwc_otg_get_param_lpm_enable(otg_dev->core_if)) { + return 0; + } + + if (!dwc_otg_is_device_mode(otg_dev->core_if)) { + return 0; + } + + dwc_otg_set_lpmresponse(otg_dev->core_if, val); + return count; +} + +DEVICE_ATTR(lpm_response, S_IRUGO | S_IWUSR, lpmresp_show, lpmresp_store); + +/** +* Show the sleep_status attribute. +*/ +static ssize_t sleepstatus_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + return sprintf(buf, "Sleep Status = %d\n", + dwc_otg_get_lpm_portsleepstatus(otg_dev->core_if)); +} + +/** + * Store the sleep_status attribure. + */ +static ssize_t sleepstatus_store(struct device *_dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev); + dwc_otg_core_if_t *core_if = otg_dev->core_if; + + if (dwc_otg_get_lpm_portsleepstatus(otg_dev->core_if)) { + if (dwc_otg_is_host_mode(core_if)) { + + DWC_PRINTF("Host initiated resume\n"); + dwc_otg_set_prtresume(otg_dev->core_if, 1); + } + } + + return count; +} + +DEVICE_ATTR(sleep_status, S_IRUGO | S_IWUSR, sleepstatus_show, + sleepstatus_store); + +#endif /* CONFIG_USB_DWC_OTG_LPM_ENABLE */ + +/**@}*/ + +/** + * Create the device files + */ +void dwc_otg_attr_create( +#ifdef LM_INTERFACE + struct lm_device *dev +#elif defined(PCI_INTERFACE) + struct pci_dev *dev +#elif defined(PLATFORM_INTERFACE) + struct platform_device *dev +#endif + ) +{ + int error; + + error = device_create_file(&dev->dev, &dev_attr_regoffset); + error = device_create_file(&dev->dev, &dev_attr_regvalue); + error = device_create_file(&dev->dev, &dev_attr_mode); + error = device_create_file(&dev->dev, &dev_attr_hnpcapable); + error = device_create_file(&dev->dev, &dev_attr_srpcapable); + error = device_create_file(&dev->dev, &dev_attr_hsic_connect); + error = device_create_file(&dev->dev, &dev_attr_inv_sel_hsic); + error = device_create_file(&dev->dev, &dev_attr_hnp); + error = device_create_file(&dev->dev, &dev_attr_srp); + error = device_create_file(&dev->dev, &dev_attr_buspower); + error = device_create_file(&dev->dev, &dev_attr_bussuspend); + error = device_create_file(&dev->dev, &dev_attr_mode_ch_tim_en); + error = device_create_file(&dev->dev, &dev_attr_fr_interval); + error = device_create_file(&dev->dev, &dev_attr_busconnected); + error = device_create_file(&dev->dev, &dev_attr_gotgctl); + error = device_create_file(&dev->dev, &dev_attr_gusbcfg); + error = device_create_file(&dev->dev, &dev_attr_grxfsiz); + error = device_create_file(&dev->dev, &dev_attr_gnptxfsiz); + error = device_create_file(&dev->dev, &dev_attr_gpvndctl); + error = device_create_file(&dev->dev, &dev_attr_ggpio); + error = device_create_file(&dev->dev, &dev_attr_guid); + error = device_create_file(&dev->dev, &dev_attr_gsnpsid); + error = device_create_file(&dev->dev, &dev_attr_devspeed); + error = device_create_file(&dev->dev, &dev_attr_enumspeed); + error = device_create_file(&dev->dev, &dev_attr_hptxfsiz); + error = device_create_file(&dev->dev, &dev_attr_hprt0); + error = device_create_file(&dev->dev, &dev_attr_remote_wakeup); + error = device_create_file(&dev->dev, &dev_attr_rem_wakeup_pwrdn); + error = device_create_file(&dev->dev, &dev_attr_disconnect_us); + error = device_create_file(&dev->dev, &dev_attr_regdump); + error = device_create_file(&dev->dev, &dev_attr_spramdump); + error = device_create_file(&dev->dev, &dev_attr_hcddump); + error = device_create_file(&dev->dev, &dev_attr_hcd_frrem); + error = device_create_file(&dev->dev, &dev_attr_rd_reg_test); + error = device_create_file(&dev->dev, &dev_attr_wr_reg_test); +#ifdef CONFIG_USB_DWC_OTG_LPM + error = device_create_file(&dev->dev, &dev_attr_lpm_response); + error = device_create_file(&dev->dev, &dev_attr_sleep_status); +#endif +} + +/** + * Remove the device files + */ +void dwc_otg_attr_remove( +#ifdef LM_INTERFACE + struct lm_device *dev +#elif defined(PCI_INTERFACE) + struct pci_dev *dev +#elif defined(PLATFORM_INTERFACE) + struct platform_device *dev +#endif + ) +{ + device_remove_file(&dev->dev, &dev_attr_regoffset); + device_remove_file(&dev->dev, &dev_attr_regvalue); + device_remove_file(&dev->dev, &dev_attr_mode); + device_remove_file(&dev->dev, &dev_attr_hnpcapable); + device_remove_file(&dev->dev, &dev_attr_srpcapable); + device_remove_file(&dev->dev, &dev_attr_hsic_connect); + device_remove_file(&dev->dev, &dev_attr_inv_sel_hsic); + device_remove_file(&dev->dev, &dev_attr_hnp); + device_remove_file(&dev->dev, &dev_attr_srp); + device_remove_file(&dev->dev, &dev_attr_buspower); + device_remove_file(&dev->dev, &dev_attr_bussuspend); + device_remove_file(&dev->dev, &dev_attr_mode_ch_tim_en); + device_remove_file(&dev->dev, &dev_attr_fr_interval); + device_remove_file(&dev->dev, &dev_attr_busconnected); + device_remove_file(&dev->dev, &dev_attr_gotgctl); + device_remove_file(&dev->dev, &dev_attr_gusbcfg); + device_remove_file(&dev->dev, &dev_attr_grxfsiz); + device_remove_file(&dev->dev, &dev_attr_gnptxfsiz); + device_remove_file(&dev->dev, &dev_attr_gpvndctl); + device_remove_file(&dev->dev, &dev_attr_ggpio); + device_remove_file(&dev->dev, &dev_attr_guid); + device_remove_file(&dev->dev, &dev_attr_gsnpsid); + device_remove_file(&dev->dev, &dev_attr_devspeed); + device_remove_file(&dev->dev, &dev_attr_enumspeed); + device_remove_file(&dev->dev, &dev_attr_hptxfsiz); + device_remove_file(&dev->dev, &dev_attr_hprt0); + device_remove_file(&dev->dev, &dev_attr_remote_wakeup); + device_remove_file(&dev->dev, &dev_attr_rem_wakeup_pwrdn); + device_remove_file(&dev->dev, &dev_attr_disconnect_us); + device_remove_file(&dev->dev, &dev_attr_regdump); + device_remove_file(&dev->dev, &dev_attr_spramdump); + device_remove_file(&dev->dev, &dev_attr_hcddump); + device_remove_file(&dev->dev, &dev_attr_hcd_frrem); + device_remove_file(&dev->dev, &dev_attr_rd_reg_test); + device_remove_file(&dev->dev, &dev_attr_wr_reg_test); +#ifdef CONFIG_USB_DWC_OTG_LPM + device_remove_file(&dev->dev, &dev_attr_lpm_response); + device_remove_file(&dev->dev, &dev_attr_sleep_status); +#endif +} diff --git a/drivers/usb/host/dwc_otg/dwc_otg_attr.h b/drivers/usb/host/dwc_otg/dwc_otg_attr.h new file mode 100644 index 0000000000000000000000000000000000000000..e10b67f97c522094b553b7675741ba1b3cae293d --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_attr.h @@ -0,0 +1,89 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_attr.h $ + * $Revision: #13 $ + * $Date: 2010/06/21 $ + * $Change: 1532021 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +#if !defined(__DWC_OTG_ATTR_H__) +#define __DWC_OTG_ATTR_H__ + +/** @file + * This file contains the interface to the Linux device attributes. + */ +extern struct device_attribute dev_attr_regoffset; +extern struct device_attribute dev_attr_regvalue; + +extern struct device_attribute dev_attr_mode; +extern struct device_attribute dev_attr_hnpcapable; +extern struct device_attribute dev_attr_srpcapable; +extern struct device_attribute dev_attr_hnp; +extern struct device_attribute dev_attr_srp; +extern struct device_attribute dev_attr_buspower; +extern struct device_attribute dev_attr_bussuspend; +extern struct device_attribute dev_attr_mode_ch_tim_en; +extern struct device_attribute dev_attr_fr_interval; +extern struct device_attribute dev_attr_busconnected; +extern struct device_attribute dev_attr_gotgctl; +extern struct device_attribute dev_attr_gusbcfg; +extern struct device_attribute dev_attr_grxfsiz; +extern struct device_attribute dev_attr_gnptxfsiz; +extern struct device_attribute dev_attr_gpvndctl; +extern struct device_attribute dev_attr_ggpio; +extern struct device_attribute dev_attr_guid; +extern struct device_attribute dev_attr_gsnpsid; +extern struct device_attribute dev_attr_devspeed; +extern struct device_attribute dev_attr_enumspeed; +extern struct device_attribute dev_attr_hptxfsiz; +extern struct device_attribute dev_attr_hprt0; +#ifdef CONFIG_USB_DWC_OTG_LPM +extern struct device_attribute dev_attr_lpm_response; +extern struct device_attribute devi_attr_sleep_status; +#endif + +void dwc_otg_attr_create( +#ifdef LM_INTERFACE + struct lm_device *dev +#elif defined(PCI_INTERFACE) + struct pci_dev *dev +#elif defined(PLATFORM_INTERFACE) + struct platform_device *dev +#endif + ); + +void dwc_otg_attr_remove( +#ifdef LM_INTERFACE + struct lm_device *dev +#elif defined(PCI_INTERFACE) + struct pci_dev *dev +#elif defined(PLATFORM_INTERFACE) + struct platform_device *dev +#endif + ); +#endif diff --git a/drivers/usb/host/dwc_otg/dwc_otg_cfi.c b/drivers/usb/host/dwc_otg/dwc_otg_cfi.c new file mode 100644 index 0000000000000000000000000000000000000000..bbb3d32093d029e93f903bd76f45a3f715e55afd --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_cfi.c @@ -0,0 +1,1876 @@ +/* ========================================================================== + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +/** @file + * + * This file contains the most of the CFI(Core Feature Interface) + * implementation for the OTG. + */ + +#ifdef DWC_UTE_CFI + +#include "dwc_otg_pcd.h" +#include "dwc_otg_cfi.h" + +/** This definition should actually migrate to the Portability Library */ +#define DWC_CONSTANT_CPU_TO_LE16(x) (x) + +extern dwc_otg_pcd_ep_t *get_ep_by_addr(dwc_otg_pcd_t * pcd, u16 wIndex); + +static int cfi_core_features_buf(uint8_t * buf, uint16_t buflen); +static int cfi_get_feature_value(uint8_t * buf, uint16_t buflen, + struct dwc_otg_pcd *pcd, + struct cfi_usb_ctrlrequest *ctrl_req); +static int cfi_set_feature_value(struct dwc_otg_pcd *pcd); +static int cfi_ep_get_sg_val(uint8_t * buf, struct dwc_otg_pcd *pcd, + struct cfi_usb_ctrlrequest *req); +static int cfi_ep_get_concat_val(uint8_t * buf, struct dwc_otg_pcd *pcd, + struct cfi_usb_ctrlrequest *req); +static int cfi_ep_get_align_val(uint8_t * buf, struct dwc_otg_pcd *pcd, + struct cfi_usb_ctrlrequest *req); +static int cfi_preproc_reset(struct dwc_otg_pcd *pcd, + struct cfi_usb_ctrlrequest *req); +static void cfi_free_ep_bs_dyn_data(cfi_ep_t * cfiep); + +static uint16_t get_dfifo_size(dwc_otg_core_if_t * core_if); +static int32_t get_rxfifo_size(dwc_otg_core_if_t * core_if, uint16_t wValue); +static int32_t get_txfifo_size(struct dwc_otg_pcd *pcd, uint16_t wValue); + +static uint8_t resize_fifos(dwc_otg_core_if_t * core_if); + +/** This is the header of the all features descriptor */ +static cfi_all_features_header_t all_props_desc_header = { + .wVersion = DWC_CONSTANT_CPU_TO_LE16(0x100), + .wCoreID = DWC_CONSTANT_CPU_TO_LE16(CFI_CORE_ID_OTG), + .wNumFeatures = DWC_CONSTANT_CPU_TO_LE16(9), +}; + +/** This is an array of statically allocated feature descriptors */ +static cfi_feature_desc_header_t prop_descs[] = { + + /* FT_ID_DMA_MODE */ + { + .wFeatureID = DWC_CONSTANT_CPU_TO_LE16(FT_ID_DMA_MODE), + .bmAttributes = CFI_FEATURE_ATTR_RW, + .wDataLength = DWC_CONSTANT_CPU_TO_LE16(1), + }, + + /* FT_ID_DMA_BUFFER_SETUP */ + { + .wFeatureID = DWC_CONSTANT_CPU_TO_LE16(FT_ID_DMA_BUFFER_SETUP), + .bmAttributes = CFI_FEATURE_ATTR_RW, + .wDataLength = DWC_CONSTANT_CPU_TO_LE16(6), + }, + + /* FT_ID_DMA_BUFF_ALIGN */ + { + .wFeatureID = DWC_CONSTANT_CPU_TO_LE16(FT_ID_DMA_BUFF_ALIGN), + .bmAttributes = CFI_FEATURE_ATTR_RW, + .wDataLength = DWC_CONSTANT_CPU_TO_LE16(2), + }, + + /* FT_ID_DMA_CONCAT_SETUP */ + { + .wFeatureID = DWC_CONSTANT_CPU_TO_LE16(FT_ID_DMA_CONCAT_SETUP), + .bmAttributes = CFI_FEATURE_ATTR_RW, + //.wDataLength = DWC_CONSTANT_CPU_TO_LE16(6), + }, + + /* FT_ID_DMA_CIRCULAR */ + { + .wFeatureID = DWC_CONSTANT_CPU_TO_LE16(FT_ID_DMA_CIRCULAR), + .bmAttributes = CFI_FEATURE_ATTR_RW, + .wDataLength = DWC_CONSTANT_CPU_TO_LE16(6), + }, + + /* FT_ID_THRESHOLD_SETUP */ + { + .wFeatureID = DWC_CONSTANT_CPU_TO_LE16(FT_ID_THRESHOLD_SETUP), + .bmAttributes = CFI_FEATURE_ATTR_RW, + .wDataLength = DWC_CONSTANT_CPU_TO_LE16(6), + }, + + /* FT_ID_DFIFO_DEPTH */ + { + .wFeatureID = DWC_CONSTANT_CPU_TO_LE16(FT_ID_DFIFO_DEPTH), + .bmAttributes = CFI_FEATURE_ATTR_RO, + .wDataLength = DWC_CONSTANT_CPU_TO_LE16(2), + }, + + /* FT_ID_TX_FIFO_DEPTH */ + { + .wFeatureID = DWC_CONSTANT_CPU_TO_LE16(FT_ID_TX_FIFO_DEPTH), + .bmAttributes = CFI_FEATURE_ATTR_RW, + .wDataLength = DWC_CONSTANT_CPU_TO_LE16(2), + }, + + /* FT_ID_RX_FIFO_DEPTH */ + { + .wFeatureID = DWC_CONSTANT_CPU_TO_LE16(FT_ID_RX_FIFO_DEPTH), + .bmAttributes = CFI_FEATURE_ATTR_RW, + .wDataLength = DWC_CONSTANT_CPU_TO_LE16(2), + } +}; + +/** The table of feature names */ +cfi_string_t prop_name_table[] = { + {FT_ID_DMA_MODE, "dma_mode"}, + {FT_ID_DMA_BUFFER_SETUP, "buffer_setup"}, + {FT_ID_DMA_BUFF_ALIGN, "buffer_align"}, + {FT_ID_DMA_CONCAT_SETUP, "concat_setup"}, + {FT_ID_DMA_CIRCULAR, "buffer_circular"}, + {FT_ID_THRESHOLD_SETUP, "threshold_setup"}, + {FT_ID_DFIFO_DEPTH, "dfifo_depth"}, + {FT_ID_TX_FIFO_DEPTH, "txfifo_depth"}, + {FT_ID_RX_FIFO_DEPTH, "rxfifo_depth"}, + {} +}; + +/************************************************************************/ + +/** + * Returns the name of the feature by its ID + * or NULL if no featute ID matches. + * + */ +const uint8_t *get_prop_name(uint16_t prop_id, int *len) +{ + cfi_string_t *pstr; + *len = 0; + + for (pstr = prop_name_table; pstr && pstr->s; pstr++) { + if (pstr->id == prop_id) { + *len = DWC_STRLEN(pstr->s); + return pstr->s; + } + } + return NULL; +} + +/** + * This function handles all CFI specific control requests. + * + * Return a negative value to stall the DCE. + */ +int cfi_setup(struct dwc_otg_pcd *pcd, struct cfi_usb_ctrlrequest *ctrl) +{ + int retval = 0; + dwc_otg_pcd_ep_t *ep = NULL; + cfiobject_t *cfi = pcd->cfi; + struct dwc_otg_core_if *coreif = GET_CORE_IF(pcd); + uint16_t wLen = DWC_LE16_TO_CPU(&ctrl->wLength); + uint16_t wValue = DWC_LE16_TO_CPU(&ctrl->wValue); + uint16_t wIndex = DWC_LE16_TO_CPU(&ctrl->wIndex); + uint32_t regaddr = 0; + uint32_t regval = 0; + + /* Save this Control Request in the CFI object. + * The data field will be assigned in the data stage completion CB function. + */ + cfi->ctrl_req = *ctrl; + cfi->ctrl_req.data = NULL; + + cfi->need_gadget_att = 0; + cfi->need_status_in_complete = 0; + + switch (ctrl->bRequest) { + case VEN_CORE_GET_FEATURES: + retval = cfi_core_features_buf(cfi->buf_in.buf, CFI_IN_BUF_LEN); + if (retval >= 0) { + //dump_msg(cfi->buf_in.buf, retval); + ep = &pcd->ep0; + + retval = min((uint16_t) retval, wLen); + /* Transfer this buffer to the host through the EP0-IN EP */ + ep->dwc_ep.dma_addr = cfi->buf_in.addr; + ep->dwc_ep.start_xfer_buff = cfi->buf_in.buf; + ep->dwc_ep.xfer_buff = cfi->buf_in.buf; + ep->dwc_ep.xfer_len = retval; + ep->dwc_ep.xfer_count = 0; + ep->dwc_ep.sent_zlp = 0; + ep->dwc_ep.total_len = ep->dwc_ep.xfer_len; + + pcd->ep0_pending = 1; + dwc_otg_ep0_start_transfer(coreif, &ep->dwc_ep); + } + retval = 0; + break; + + case VEN_CORE_GET_FEATURE: + CFI_INFO("VEN_CORE_GET_FEATURE\n"); + retval = cfi_get_feature_value(cfi->buf_in.buf, CFI_IN_BUF_LEN, + pcd, ctrl); + if (retval >= 0) { + ep = &pcd->ep0; + + retval = min((uint16_t) retval, wLen); + /* Transfer this buffer to the host through the EP0-IN EP */ + ep->dwc_ep.dma_addr = cfi->buf_in.addr; + ep->dwc_ep.start_xfer_buff = cfi->buf_in.buf; + ep->dwc_ep.xfer_buff = cfi->buf_in.buf; + ep->dwc_ep.xfer_len = retval; + ep->dwc_ep.xfer_count = 0; + ep->dwc_ep.sent_zlp = 0; + ep->dwc_ep.total_len = ep->dwc_ep.xfer_len; + + pcd->ep0_pending = 1; + dwc_otg_ep0_start_transfer(coreif, &ep->dwc_ep); + } + CFI_INFO("VEN_CORE_GET_FEATURE=%d\n", retval); + dump_msg(cfi->buf_in.buf, retval); + break; + + case VEN_CORE_SET_FEATURE: + CFI_INFO("VEN_CORE_SET_FEATURE\n"); + /* Set up an XFER to get the data stage of the control request, + * which is the new value of the feature to be modified. + */ + ep = &pcd->ep0; + ep->dwc_ep.is_in = 0; + ep->dwc_ep.dma_addr = cfi->buf_out.addr; + ep->dwc_ep.start_xfer_buff = cfi->buf_out.buf; + ep->dwc_ep.xfer_buff = cfi->buf_out.buf; + ep->dwc_ep.xfer_len = wLen; + ep->dwc_ep.xfer_count = 0; + ep->dwc_ep.sent_zlp = 0; + ep->dwc_ep.total_len = ep->dwc_ep.xfer_len; + + pcd->ep0_pending = 1; + /* Read the control write's data stage */ + dwc_otg_ep0_start_transfer(coreif, &ep->dwc_ep); + retval = 0; + break; + + case VEN_CORE_RESET_FEATURES: + CFI_INFO("VEN_CORE_RESET_FEATURES\n"); + cfi->need_gadget_att = 1; + cfi->need_status_in_complete = 1; + retval = cfi_preproc_reset(pcd, ctrl); + CFI_INFO("VEN_CORE_RESET_FEATURES = (%d)\n", retval); + break; + + case VEN_CORE_ACTIVATE_FEATURES: + CFI_INFO("VEN_CORE_ACTIVATE_FEATURES\n"); + break; + + case VEN_CORE_READ_REGISTER: + CFI_INFO("VEN_CORE_READ_REGISTER\n"); + /* wValue optionally contains the HI WORD of the register offset and + * wIndex contains the LOW WORD of the register offset + */ + if (wValue == 0) { + /* @TODO - MAS - fix the access to the base field */ + regaddr = 0; + //regaddr = (uint32_t) pcd->otg_dev->os_dep.base; + //GET_CORE_IF(pcd)->co + regaddr |= wIndex; + } else { + regaddr = (wValue << 16) | wIndex; + } + + /* Read a 32-bit value of the memory at the regaddr */ + regval = DWC_READ_REG32((uint32_t *) regaddr); + + ep = &pcd->ep0; + dwc_memcpy(cfi->buf_in.buf, ®val, sizeof(uint32_t)); + ep->dwc_ep.is_in = 1; + ep->dwc_ep.dma_addr = cfi->buf_in.addr; + ep->dwc_ep.start_xfer_buff = cfi->buf_in.buf; + ep->dwc_ep.xfer_buff = cfi->buf_in.buf; + ep->dwc_ep.xfer_len = wLen; + ep->dwc_ep.xfer_count = 0; + ep->dwc_ep.sent_zlp = 0; + ep->dwc_ep.total_len = ep->dwc_ep.xfer_len; + + pcd->ep0_pending = 1; + dwc_otg_ep0_start_transfer(coreif, &ep->dwc_ep); + cfi->need_gadget_att = 0; + retval = 0; + break; + + case VEN_CORE_WRITE_REGISTER: + CFI_INFO("VEN_CORE_WRITE_REGISTER\n"); + /* Set up an XFER to get the data stage of the control request, + * which is the new value of the register to be modified. + */ + ep = &pcd->ep0; + ep->dwc_ep.is_in = 0; + ep->dwc_ep.dma_addr = cfi->buf_out.addr; + ep->dwc_ep.start_xfer_buff = cfi->buf_out.buf; + ep->dwc_ep.xfer_buff = cfi->buf_out.buf; + ep->dwc_ep.xfer_len = wLen; + ep->dwc_ep.xfer_count = 0; + ep->dwc_ep.sent_zlp = 0; + ep->dwc_ep.total_len = ep->dwc_ep.xfer_len; + + pcd->ep0_pending = 1; + /* Read the control write's data stage */ + dwc_otg_ep0_start_transfer(coreif, &ep->dwc_ep); + retval = 0; + break; + + default: + retval = -DWC_E_NOT_SUPPORTED; + break; + } + + return retval; +} + +/** + * This function prepares the core features descriptors and copies its + * raw representation into the buffer . + * + * The buffer structure is as follows: + * all_features_header (8 bytes) + * features_#1 (8 bytes + feature name string length) + * features_#2 (8 bytes + feature name string length) + * ..... + * features_#n - where n=the total count of feature descriptors + */ +static int cfi_core_features_buf(uint8_t * buf, uint16_t buflen) +{ + cfi_feature_desc_header_t *prop_hdr = prop_descs; + cfi_feature_desc_header_t *prop; + cfi_all_features_header_t *all_props_hdr = &all_props_desc_header; + cfi_all_features_header_t *tmp; + uint8_t *tmpbuf = buf; + const uint8_t *pname = NULL; + int i, j, namelen = 0, totlen; + + /* Prepare and copy the core features into the buffer */ + CFI_INFO("%s:\n", __func__); + + tmp = (cfi_all_features_header_t *) tmpbuf; + *tmp = *all_props_hdr; + tmpbuf += CFI_ALL_FEATURES_HDR_LEN; + + j = sizeof(prop_descs) / sizeof(cfi_all_features_header_t); + for (i = 0; i < j; i++, prop_hdr++) { + pname = get_prop_name(prop_hdr->wFeatureID, &namelen); + prop = (cfi_feature_desc_header_t *) tmpbuf; + *prop = *prop_hdr; + + prop->bNameLen = namelen; + prop->wLength = + DWC_CONSTANT_CPU_TO_LE16(CFI_FEATURE_DESC_HDR_LEN + + namelen); + + tmpbuf += CFI_FEATURE_DESC_HDR_LEN; + dwc_memcpy(tmpbuf, pname, namelen); + tmpbuf += namelen; + } + + totlen = tmpbuf - buf; + + if (totlen > 0) { + tmp = (cfi_all_features_header_t *) buf; + tmp->wTotalLen = DWC_CONSTANT_CPU_TO_LE16(totlen); + } + + return totlen; +} + +/** + * This function releases all the dynamic memory in the CFI object. + */ +static void cfi_release(cfiobject_t * cfiobj) +{ + cfi_ep_t *cfiep; + dwc_list_link_t *tmp; + + CFI_INFO("%s\n", __func__); + + if (cfiobj->buf_in.buf) { + DWC_DMA_FREE(CFI_IN_BUF_LEN, cfiobj->buf_in.buf, + cfiobj->buf_in.addr); + cfiobj->buf_in.buf = NULL; + } + + if (cfiobj->buf_out.buf) { + DWC_DMA_FREE(CFI_OUT_BUF_LEN, cfiobj->buf_out.buf, + cfiobj->buf_out.addr); + cfiobj->buf_out.buf = NULL; + } + + /* Free the Buffer Setup values for each EP */ + //list_for_each_entry(cfiep, &cfiobj->active_eps, lh) { + DWC_LIST_FOREACH(tmp, &cfiobj->active_eps) { + cfiep = DWC_LIST_ENTRY(tmp, struct cfi_ep, lh); + cfi_free_ep_bs_dyn_data(cfiep); + } +} + +/** + * This function frees the dynamically allocated EP buffer setup data. + */ +static void cfi_free_ep_bs_dyn_data(cfi_ep_t * cfiep) +{ + if (cfiep->bm_sg) { + DWC_FREE(cfiep->bm_sg); + cfiep->bm_sg = NULL; + } + + if (cfiep->bm_align) { + DWC_FREE(cfiep->bm_align); + cfiep->bm_align = NULL; + } + + if (cfiep->bm_concat) { + if (NULL != cfiep->bm_concat->wTxBytes) { + DWC_FREE(cfiep->bm_concat->wTxBytes); + cfiep->bm_concat->wTxBytes = NULL; + } + DWC_FREE(cfiep->bm_concat); + cfiep->bm_concat = NULL; + } +} + +/** + * This function initializes the default values of the features + * for a specific endpoint and should be called only once when + * the EP is enabled first time. + */ +static int cfi_ep_init_defaults(struct dwc_otg_pcd *pcd, cfi_ep_t * cfiep) +{ + int retval = 0; + + cfiep->bm_sg = DWC_ALLOC(sizeof(ddma_sg_buffer_setup_t)); + if (NULL == cfiep->bm_sg) { + CFI_INFO("Failed to allocate memory for SG feature value\n"); + return -DWC_E_NO_MEMORY; + } + dwc_memset(cfiep->bm_sg, 0, sizeof(ddma_sg_buffer_setup_t)); + + /* For the Concatenation feature's default value we do not allocate + * memory for the wTxBytes field - it will be done in the set_feature_value + * request handler. + */ + cfiep->bm_concat = DWC_ALLOC(sizeof(ddma_concat_buffer_setup_t)); + if (NULL == cfiep->bm_concat) { + CFI_INFO + ("Failed to allocate memory for CONCATENATION feature value\n"); + DWC_FREE(cfiep->bm_sg); + return -DWC_E_NO_MEMORY; + } + dwc_memset(cfiep->bm_concat, 0, sizeof(ddma_concat_buffer_setup_t)); + + cfiep->bm_align = DWC_ALLOC(sizeof(ddma_align_buffer_setup_t)); + if (NULL == cfiep->bm_align) { + CFI_INFO + ("Failed to allocate memory for Alignment feature value\n"); + DWC_FREE(cfiep->bm_sg); + DWC_FREE(cfiep->bm_concat); + return -DWC_E_NO_MEMORY; + } + dwc_memset(cfiep->bm_align, 0, sizeof(ddma_align_buffer_setup_t)); + + return retval; +} + +/** + * The callback function that notifies the CFI on the activation of + * an endpoint in the PCD. The following steps are done in this function: + * + * Create a dynamically allocated cfi_ep_t object (a CFI wrapper to the PCD's + * active endpoint) + * Create MAX_DMA_DESCS_PER_EP count DMA Descriptors for the EP + * Set the Buffer Mode to standard + * Initialize the default values for all EP modes (SG, Circular, Concat, Align) + * Add the cfi_ep_t object to the list of active endpoints in the CFI object + */ +static int cfi_ep_enable(struct cfiobject *cfi, struct dwc_otg_pcd *pcd, + struct dwc_otg_pcd_ep *ep) +{ + cfi_ep_t *cfiep; + int retval = -DWC_E_NOT_SUPPORTED; + + CFI_INFO("%s: epname=%s; epnum=0x%02x\n", __func__, + "EP_" /*ep->ep.name */ , ep->desc->bEndpointAddress); + /* MAS - Check whether this endpoint already is in the list */ + cfiep = get_cfi_ep_by_pcd_ep(cfi, ep); + + if (NULL == cfiep) { + /* Allocate a cfi_ep_t object */ + cfiep = DWC_ALLOC(sizeof(cfi_ep_t)); + if (NULL == cfiep) { + CFI_INFO + ("Unable to allocate memory for in function %s\n", + __func__); + return -DWC_E_NO_MEMORY; + } + dwc_memset(cfiep, 0, sizeof(cfi_ep_t)); + + /* Save the dwc_otg_pcd_ep pointer in the cfiep object */ + cfiep->ep = ep; + + /* Allocate the DMA Descriptors chain of MAX_DMA_DESCS_PER_EP count */ + ep->dwc_ep.descs = + DWC_DMA_ALLOC(MAX_DMA_DESCS_PER_EP * + sizeof(dwc_otg_dma_desc_t), + &ep->dwc_ep.descs_dma_addr); + + if (NULL == ep->dwc_ep.descs) { + DWC_FREE(cfiep); + return -DWC_E_NO_MEMORY; + } + + DWC_LIST_INIT(&cfiep->lh); + + /* Set the buffer mode to BM_STANDARD. It will be modified + * when building descriptors for a specific buffer mode */ + ep->dwc_ep.buff_mode = BM_STANDARD; + + /* Create and initialize the default values for this EP's Buffer modes */ + if ((retval = cfi_ep_init_defaults(pcd, cfiep)) < 0) + return retval; + + /* Add the cfi_ep_t object to the CFI object's list of active endpoints */ + DWC_LIST_INSERT_TAIL(&cfi->active_eps, &cfiep->lh); + retval = 0; + } else { /* The sought EP already is in the list */ + CFI_INFO("%s: The sought EP already is in the list\n", + __func__); + } + + return retval; +} + +/** + * This function is called when the data stage of a 3-stage Control Write request + * is complete. + * + */ +static int cfi_ctrl_write_complete(struct cfiobject *cfi, + struct dwc_otg_pcd *pcd) +{ + uint32_t addr, reg_value; + uint16_t wIndex, wValue; + uint8_t bRequest; + uint8_t *buf = cfi->buf_out.buf; + //struct usb_ctrlrequest *ctrl_req = &cfi->ctrl_req_saved; + struct cfi_usb_ctrlrequest *ctrl_req = &cfi->ctrl_req; + int retval = -DWC_E_NOT_SUPPORTED; + + CFI_INFO("%s\n", __func__); + + bRequest = ctrl_req->bRequest; + wIndex = DWC_CONSTANT_CPU_TO_LE16(ctrl_req->wIndex); + wValue = DWC_CONSTANT_CPU_TO_LE16(ctrl_req->wValue); + + /* + * Save the pointer to the data stage in the ctrl_req's field. + * The request should be already saved in the command stage by now. + */ + ctrl_req->data = cfi->buf_out.buf; + cfi->need_status_in_complete = 0; + cfi->need_gadget_att = 0; + + switch (bRequest) { + case VEN_CORE_WRITE_REGISTER: + /* The buffer contains raw data of the new value for the register */ + reg_value = *((uint32_t *) buf); + if (wValue == 0) { + addr = 0; + //addr = (uint32_t) pcd->otg_dev->os_dep.base; + addr += wIndex; + } else { + addr = (wValue << 16) | wIndex; + } + + //writel(reg_value, addr); + + retval = 0; + cfi->need_status_in_complete = 1; + break; + + case VEN_CORE_SET_FEATURE: + /* The buffer contains raw data of the new value of the feature */ + retval = cfi_set_feature_value(pcd); + if (retval < 0) + return retval; + + cfi->need_status_in_complete = 1; + break; + + default: + break; + } + + return retval; +} + +/** + * This function builds the DMA descriptors for the SG buffer mode. + */ +static void cfi_build_sg_descs(struct cfiobject *cfi, cfi_ep_t * cfiep, + dwc_otg_pcd_request_t * req) +{ + struct dwc_otg_pcd_ep *ep = cfiep->ep; + ddma_sg_buffer_setup_t *sgval = cfiep->bm_sg; + struct dwc_otg_dma_desc *desc = cfiep->ep->dwc_ep.descs; + struct dwc_otg_dma_desc *desc_last = cfiep->ep->dwc_ep.descs; + dma_addr_t buff_addr = req->dma; + int i; + uint32_t txsize, off; + + txsize = sgval->wSize; + off = sgval->bOffset; + +// CFI_INFO("%s: %s TXSIZE=0x%08x; OFFSET=0x%08x\n", +// __func__, cfiep->ep->ep.name, txsize, off); + + for (i = 0; i < sgval->bCount; i++) { + desc->status.b.bs = BS_HOST_BUSY; + desc->buf = buff_addr; + desc->status.b.l = 0; + desc->status.b.ioc = 0; + desc->status.b.sp = 0; + desc->status.b.bytes = txsize; + desc->status.b.bs = BS_HOST_READY; + + /* Set the next address of the buffer */ + buff_addr += txsize + off; + desc_last = desc; + desc++; + } + + /* Set the last, ioc and sp bits on the Last DMA Descriptor */ + desc_last->status.b.l = 1; + desc_last->status.b.ioc = 1; + desc_last->status.b.sp = ep->dwc_ep.sent_zlp; + /* Save the last DMA descriptor pointer */ + cfiep->dma_desc_last = desc_last; + cfiep->desc_count = sgval->bCount; +} + +/** + * This function builds the DMA descriptors for the Concatenation buffer mode. + */ +static void cfi_build_concat_descs(struct cfiobject *cfi, cfi_ep_t * cfiep, + dwc_otg_pcd_request_t * req) +{ + struct dwc_otg_pcd_ep *ep = cfiep->ep; + ddma_concat_buffer_setup_t *concatval = cfiep->bm_concat; + struct dwc_otg_dma_desc *desc = cfiep->ep->dwc_ep.descs; + struct dwc_otg_dma_desc *desc_last = cfiep->ep->dwc_ep.descs; + dma_addr_t buff_addr = req->dma; + int i; + uint16_t *txsize; + + txsize = concatval->wTxBytes; + + for (i = 0; i < concatval->hdr.bDescCount; i++) { + desc->buf = buff_addr; + desc->status.b.bs = BS_HOST_BUSY; + desc->status.b.l = 0; + desc->status.b.ioc = 0; + desc->status.b.sp = 0; + desc->status.b.bytes = *txsize; + desc->status.b.bs = BS_HOST_READY; + + txsize++; + /* Set the next address of the buffer */ + buff_addr += UGETW(ep->desc->wMaxPacketSize); + desc_last = desc; + desc++; + } + + /* Set the last, ioc and sp bits on the Last DMA Descriptor */ + desc_last->status.b.l = 1; + desc_last->status.b.ioc = 1; + desc_last->status.b.sp = ep->dwc_ep.sent_zlp; + cfiep->dma_desc_last = desc_last; + cfiep->desc_count = concatval->hdr.bDescCount; +} + +/** + * This function builds the DMA descriptors for the Circular buffer mode + */ +static void cfi_build_circ_descs(struct cfiobject *cfi, cfi_ep_t * cfiep, + dwc_otg_pcd_request_t * req) +{ + /* @todo: MAS - add implementation when this feature needs to be tested */ +} + +/** + * This function builds the DMA descriptors for the Alignment buffer mode + */ +static void cfi_build_align_descs(struct cfiobject *cfi, cfi_ep_t * cfiep, + dwc_otg_pcd_request_t * req) +{ + struct dwc_otg_pcd_ep *ep = cfiep->ep; + ddma_align_buffer_setup_t *alignval = cfiep->bm_align; + struct dwc_otg_dma_desc *desc = cfiep->ep->dwc_ep.descs; + dma_addr_t buff_addr = req->dma; + + desc->status.b.bs = BS_HOST_BUSY; + desc->status.b.l = 1; + desc->status.b.ioc = 1; + desc->status.b.sp = ep->dwc_ep.sent_zlp; + desc->status.b.bytes = req->length; + /* Adjust the buffer alignment */ + desc->buf = (buff_addr + alignval->bAlign); + desc->status.b.bs = BS_HOST_READY; + cfiep->dma_desc_last = desc; + cfiep->desc_count = 1; +} + +/** + * This function builds the DMA descriptors chain for different modes of the + * buffer setup of an endpoint. + */ +static void cfi_build_descriptors(struct cfiobject *cfi, + struct dwc_otg_pcd *pcd, + struct dwc_otg_pcd_ep *ep, + dwc_otg_pcd_request_t * req) +{ + cfi_ep_t *cfiep; + + /* Get the cfiep by the dwc_otg_pcd_ep */ + cfiep = get_cfi_ep_by_pcd_ep(cfi, ep); + if (NULL == cfiep) { + CFI_INFO("%s: Unable to find a matching active endpoint\n", + __func__); + return; + } + + cfiep->xfer_len = req->length; + + /* Iterate through all the DMA descriptors */ + switch (cfiep->ep->dwc_ep.buff_mode) { + case BM_SG: + cfi_build_sg_descs(cfi, cfiep, req); + break; + + case BM_CONCAT: + cfi_build_concat_descs(cfi, cfiep, req); + break; + + case BM_CIRCULAR: + cfi_build_circ_descs(cfi, cfiep, req); + break; + + case BM_ALIGN: + cfi_build_align_descs(cfi, cfiep, req); + break; + + default: + break; + } +} + +/** + * Allocate DMA buffer for different Buffer modes. + */ +static void *cfi_ep_alloc_buf(struct cfiobject *cfi, struct dwc_otg_pcd *pcd, + struct dwc_otg_pcd_ep *ep, dma_addr_t * dma, + unsigned size, gfp_t flags) +{ + return DWC_DMA_ALLOC(size, dma); +} + +/** + * This function initializes the CFI object. + */ +int init_cfi(cfiobject_t * cfiobj) +{ + CFI_INFO("%s\n", __func__); + + /* Allocate a buffer for IN XFERs */ + cfiobj->buf_in.buf = + DWC_DMA_ALLOC(CFI_IN_BUF_LEN, &cfiobj->buf_in.addr); + if (NULL == cfiobj->buf_in.buf) { + CFI_INFO("Unable to allocate buffer for INs\n"); + return -DWC_E_NO_MEMORY; + } + + /* Allocate a buffer for OUT XFERs */ + cfiobj->buf_out.buf = + DWC_DMA_ALLOC(CFI_OUT_BUF_LEN, &cfiobj->buf_out.addr); + if (NULL == cfiobj->buf_out.buf) { + CFI_INFO("Unable to allocate buffer for OUT\n"); + return -DWC_E_NO_MEMORY; + } + + /* Initialize the callback function pointers */ + cfiobj->ops.release = cfi_release; + cfiobj->ops.ep_enable = cfi_ep_enable; + cfiobj->ops.ctrl_write_complete = cfi_ctrl_write_complete; + cfiobj->ops.build_descriptors = cfi_build_descriptors; + cfiobj->ops.ep_alloc_buf = cfi_ep_alloc_buf; + + /* Initialize the list of active endpoints in the CFI object */ + DWC_LIST_INIT(&cfiobj->active_eps); + + return 0; +} + +/** + * This function reads the required feature's current value into the buffer + * + * @retval: Returns negative as error, or the data length of the feature + */ +static int cfi_get_feature_value(uint8_t * buf, uint16_t buflen, + struct dwc_otg_pcd *pcd, + struct cfi_usb_ctrlrequest *ctrl_req) +{ + int retval = -DWC_E_NOT_SUPPORTED; + struct dwc_otg_core_if *coreif = GET_CORE_IF(pcd); + uint16_t dfifo, rxfifo, txfifo; + + switch (ctrl_req->wIndex) { + /* Whether the DDMA is enabled or not */ + case FT_ID_DMA_MODE: + *buf = (coreif->dma_enable && coreif->dma_desc_enable) ? 1 : 0; + retval = 1; + break; + + case FT_ID_DMA_BUFFER_SETUP: + retval = cfi_ep_get_sg_val(buf, pcd, ctrl_req); + break; + + case FT_ID_DMA_BUFF_ALIGN: + retval = cfi_ep_get_align_val(buf, pcd, ctrl_req); + break; + + case FT_ID_DMA_CONCAT_SETUP: + retval = cfi_ep_get_concat_val(buf, pcd, ctrl_req); + break; + + case FT_ID_DMA_CIRCULAR: + CFI_INFO("GetFeature value (FT_ID_DMA_CIRCULAR)\n"); + break; + + case FT_ID_THRESHOLD_SETUP: + CFI_INFO("GetFeature value (FT_ID_THRESHOLD_SETUP)\n"); + break; + + case FT_ID_DFIFO_DEPTH: + dfifo = get_dfifo_size(coreif); + *((uint16_t *) buf) = dfifo; + retval = sizeof(uint16_t); + break; + + case FT_ID_TX_FIFO_DEPTH: + retval = get_txfifo_size(pcd, ctrl_req->wValue); + if (retval >= 0) { + txfifo = retval; + *((uint16_t *) buf) = txfifo; + retval = sizeof(uint16_t); + } + break; + + case FT_ID_RX_FIFO_DEPTH: + retval = get_rxfifo_size(coreif, ctrl_req->wValue); + if (retval >= 0) { + rxfifo = retval; + *((uint16_t *) buf) = rxfifo; + retval = sizeof(uint16_t); + } + break; + } + + return retval; +} + +/** + * This function resets the SG for the specified EP to its default value + */ +static int cfi_reset_sg_val(cfi_ep_t * cfiep) +{ + dwc_memset(cfiep->bm_sg, 0, sizeof(ddma_sg_buffer_setup_t)); + return 0; +} + +/** + * This function resets the Alignment for the specified EP to its default value + */ +static int cfi_reset_align_val(cfi_ep_t * cfiep) +{ + dwc_memset(cfiep->bm_sg, 0, sizeof(ddma_sg_buffer_setup_t)); + return 0; +} + +/** + * This function resets the Concatenation for the specified EP to its default value + * This function will also set the value of the wTxBytes field to NULL after + * freeing the memory previously allocated for this field. + */ +static int cfi_reset_concat_val(cfi_ep_t * cfiep) +{ + /* First we need to free the wTxBytes field */ + if (cfiep->bm_concat->wTxBytes) { + DWC_FREE(cfiep->bm_concat->wTxBytes); + cfiep->bm_concat->wTxBytes = NULL; + } + + dwc_memset(cfiep->bm_concat, 0, sizeof(ddma_concat_buffer_setup_t)); + return 0; +} + +/** + * This function resets all the buffer setups of the specified endpoint + */ +static int cfi_ep_reset_all_setup_vals(cfi_ep_t * cfiep) +{ + cfi_reset_sg_val(cfiep); + cfi_reset_align_val(cfiep); + cfi_reset_concat_val(cfiep); + return 0; +} + +static int cfi_handle_reset_fifo_val(struct dwc_otg_pcd *pcd, uint8_t ep_addr, + uint8_t rx_rst, uint8_t tx_rst) +{ + int retval = -DWC_E_INVALID; + uint16_t tx_siz[15]; + uint16_t rx_siz = 0; + dwc_otg_pcd_ep_t *ep = NULL; + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_core_params_t *params = GET_CORE_IF(pcd)->core_params; + + if (rx_rst) { + rx_siz = params->dev_rx_fifo_size; + params->dev_rx_fifo_size = GET_CORE_IF(pcd)->init_rxfsiz; + } + + if (tx_rst) { + if (ep_addr == 0) { + int i; + + for (i = 0; i < core_if->hwcfg4.b.num_in_eps; i++) { + tx_siz[i] = + core_if->core_params->dev_tx_fifo_size[i]; + core_if->core_params->dev_tx_fifo_size[i] = + core_if->init_txfsiz[i]; + } + } else { + + ep = get_ep_by_addr(pcd, ep_addr); + + if (NULL == ep) { + CFI_INFO + ("%s: Unable to get the endpoint addr=0x%02x\n", + __func__, ep_addr); + return -DWC_E_INVALID; + } + + tx_siz[0] = + params->dev_tx_fifo_size[ep->dwc_ep.tx_fifo_num - + 1]; + params->dev_tx_fifo_size[ep->dwc_ep.tx_fifo_num - 1] = + GET_CORE_IF(pcd)->init_txfsiz[ep-> + dwc_ep.tx_fifo_num - + 1]; + } + } + + if (resize_fifos(GET_CORE_IF(pcd))) { + retval = 0; + } else { + CFI_INFO + ("%s: Error resetting the feature Reset All(FIFO size)\n", + __func__); + if (rx_rst) { + params->dev_rx_fifo_size = rx_siz; + } + + if (tx_rst) { + if (ep_addr == 0) { + int i; + for (i = 0; i < core_if->hwcfg4.b.num_in_eps; + i++) { + core_if-> + core_params->dev_tx_fifo_size[i] = + tx_siz[i]; + } + } else { + params->dev_tx_fifo_size[ep-> + dwc_ep.tx_fifo_num - + 1] = tx_siz[0]; + } + } + retval = -DWC_E_INVALID; + } + return retval; +} + +static int cfi_handle_reset_all(struct dwc_otg_pcd *pcd, uint8_t addr) +{ + int retval = 0; + cfi_ep_t *cfiep; + cfiobject_t *cfi = pcd->cfi; + dwc_list_link_t *tmp; + + retval = cfi_handle_reset_fifo_val(pcd, addr, 1, 1); + if (retval < 0) { + return retval; + } + + /* If the EP address is known then reset the features for only that EP */ + if (addr) { + cfiep = get_cfi_ep_by_addr(pcd->cfi, addr); + if (NULL == cfiep) { + CFI_INFO("%s: Error getting the EP address 0x%02x\n", + __func__, addr); + return -DWC_E_INVALID; + } + retval = cfi_ep_reset_all_setup_vals(cfiep); + cfiep->ep->dwc_ep.buff_mode = BM_STANDARD; + } + /* Otherwise (wValue == 0), reset all features of all EP's */ + else { + /* Traverse all the active EP's and reset the feature(s) value(s) */ + //list_for_each_entry(cfiep, &cfi->active_eps, lh) { + DWC_LIST_FOREACH(tmp, &cfi->active_eps) { + cfiep = DWC_LIST_ENTRY(tmp, struct cfi_ep, lh); + retval = cfi_ep_reset_all_setup_vals(cfiep); + cfiep->ep->dwc_ep.buff_mode = BM_STANDARD; + if (retval < 0) { + CFI_INFO + ("%s: Error resetting the feature Reset All\n", + __func__); + return retval; + } + } + } + return retval; +} + +static int cfi_handle_reset_dma_buff_setup(struct dwc_otg_pcd *pcd, + uint8_t addr) +{ + int retval = 0; + cfi_ep_t *cfiep; + cfiobject_t *cfi = pcd->cfi; + dwc_list_link_t *tmp; + + /* If the EP address is known then reset the features for only that EP */ + if (addr) { + cfiep = get_cfi_ep_by_addr(pcd->cfi, addr); + if (NULL == cfiep) { + CFI_INFO("%s: Error getting the EP address 0x%02x\n", + __func__, addr); + return -DWC_E_INVALID; + } + retval = cfi_reset_sg_val(cfiep); + } + /* Otherwise (wValue == 0), reset all features of all EP's */ + else { + /* Traverse all the active EP's and reset the feature(s) value(s) */ + //list_for_each_entry(cfiep, &cfi->active_eps, lh) { + DWC_LIST_FOREACH(tmp, &cfi->active_eps) { + cfiep = DWC_LIST_ENTRY(tmp, struct cfi_ep, lh); + retval = cfi_reset_sg_val(cfiep); + if (retval < 0) { + CFI_INFO + ("%s: Error resetting the feature Buffer Setup\n", + __func__); + return retval; + } + } + } + return retval; +} + +static int cfi_handle_reset_concat_val(struct dwc_otg_pcd *pcd, uint8_t addr) +{ + int retval = 0; + cfi_ep_t *cfiep; + cfiobject_t *cfi = pcd->cfi; + dwc_list_link_t *tmp; + + /* If the EP address is known then reset the features for only that EP */ + if (addr) { + cfiep = get_cfi_ep_by_addr(pcd->cfi, addr); + if (NULL == cfiep) { + CFI_INFO("%s: Error getting the EP address 0x%02x\n", + __func__, addr); + return -DWC_E_INVALID; + } + retval = cfi_reset_concat_val(cfiep); + } + /* Otherwise (wValue == 0), reset all features of all EP's */ + else { + /* Traverse all the active EP's and reset the feature(s) value(s) */ + //list_for_each_entry(cfiep, &cfi->active_eps, lh) { + DWC_LIST_FOREACH(tmp, &cfi->active_eps) { + cfiep = DWC_LIST_ENTRY(tmp, struct cfi_ep, lh); + retval = cfi_reset_concat_val(cfiep); + if (retval < 0) { + CFI_INFO + ("%s: Error resetting the feature Concatenation Value\n", + __func__); + return retval; + } + } + } + return retval; +} + +static int cfi_handle_reset_align_val(struct dwc_otg_pcd *pcd, uint8_t addr) +{ + int retval = 0; + cfi_ep_t *cfiep; + cfiobject_t *cfi = pcd->cfi; + dwc_list_link_t *tmp; + + /* If the EP address is known then reset the features for only that EP */ + if (addr) { + cfiep = get_cfi_ep_by_addr(pcd->cfi, addr); + if (NULL == cfiep) { + CFI_INFO("%s: Error getting the EP address 0x%02x\n", + __func__, addr); + return -DWC_E_INVALID; + } + retval = cfi_reset_align_val(cfiep); + } + /* Otherwise (wValue == 0), reset all features of all EP's */ + else { + /* Traverse all the active EP's and reset the feature(s) value(s) */ + //list_for_each_entry(cfiep, &cfi->active_eps, lh) { + DWC_LIST_FOREACH(tmp, &cfi->active_eps) { + cfiep = DWC_LIST_ENTRY(tmp, struct cfi_ep, lh); + retval = cfi_reset_align_val(cfiep); + if (retval < 0) { + CFI_INFO + ("%s: Error resetting the feature Aliignment Value\n", + __func__); + return retval; + } + } + } + return retval; + +} + +static int cfi_preproc_reset(struct dwc_otg_pcd *pcd, + struct cfi_usb_ctrlrequest *req) +{ + int retval = 0; + + switch (req->wIndex) { + case 0: + /* Reset all features */ + retval = cfi_handle_reset_all(pcd, req->wValue & 0xff); + break; + + case FT_ID_DMA_BUFFER_SETUP: + /* Reset the SG buffer setup */ + retval = + cfi_handle_reset_dma_buff_setup(pcd, req->wValue & 0xff); + break; + + case FT_ID_DMA_CONCAT_SETUP: + /* Reset the Concatenation buffer setup */ + retval = cfi_handle_reset_concat_val(pcd, req->wValue & 0xff); + break; + + case FT_ID_DMA_BUFF_ALIGN: + /* Reset the Alignment buffer setup */ + retval = cfi_handle_reset_align_val(pcd, req->wValue & 0xff); + break; + + case FT_ID_TX_FIFO_DEPTH: + retval = + cfi_handle_reset_fifo_val(pcd, req->wValue & 0xff, 0, 1); + pcd->cfi->need_gadget_att = 0; + break; + + case FT_ID_RX_FIFO_DEPTH: + retval = cfi_handle_reset_fifo_val(pcd, 0, 1, 0); + pcd->cfi->need_gadget_att = 0; + break; + default: + break; + } + return retval; +} + +/** + * This function sets a new value for the SG buffer setup. + */ +static int cfi_ep_set_sg_val(uint8_t * buf, struct dwc_otg_pcd *pcd) +{ + uint8_t inaddr, outaddr; + cfi_ep_t *epin, *epout; + ddma_sg_buffer_setup_t *psgval; + uint32_t desccount, size; + + CFI_INFO("%s\n", __func__); + + psgval = (ddma_sg_buffer_setup_t *) buf; + desccount = (uint32_t) psgval->bCount; + size = (uint32_t) psgval->wSize; + + /* Check the DMA descriptor count */ + if ((desccount > MAX_DMA_DESCS_PER_EP) || (desccount == 0)) { + CFI_INFO + ("%s: The count of DMA Descriptors should be between 1 and %d\n", + __func__, MAX_DMA_DESCS_PER_EP); + return -DWC_E_INVALID; + } + + /* Check the DMA descriptor count */ + + if (size == 0) { + + CFI_INFO("%s: The transfer size should be at least 1 byte\n", + __func__); + + return -DWC_E_INVALID; + + } + + inaddr = psgval->bInEndpointAddress; + outaddr = psgval->bOutEndpointAddress; + + epin = get_cfi_ep_by_addr(pcd->cfi, inaddr); + epout = get_cfi_ep_by_addr(pcd->cfi, outaddr); + + if (NULL == epin || NULL == epout) { + CFI_INFO + ("%s: Unable to get the endpoints inaddr=0x%02x outaddr=0x%02x\n", + __func__, inaddr, outaddr); + return -DWC_E_INVALID; + } + + epin->ep->dwc_ep.buff_mode = BM_SG; + dwc_memcpy(epin->bm_sg, psgval, sizeof(ddma_sg_buffer_setup_t)); + + epout->ep->dwc_ep.buff_mode = BM_SG; + dwc_memcpy(epout->bm_sg, psgval, sizeof(ddma_sg_buffer_setup_t)); + + return 0; +} + +/** + * This function sets a new value for the buffer Alignment setup. + */ +static int cfi_ep_set_alignment_val(uint8_t * buf, struct dwc_otg_pcd *pcd) +{ + cfi_ep_t *ep; + uint8_t addr; + ddma_align_buffer_setup_t *palignval; + + palignval = (ddma_align_buffer_setup_t *) buf; + addr = palignval->bEndpointAddress; + + ep = get_cfi_ep_by_addr(pcd->cfi, addr); + + if (NULL == ep) { + CFI_INFO("%s: Unable to get the endpoint addr=0x%02x\n", + __func__, addr); + return -DWC_E_INVALID; + } + + ep->ep->dwc_ep.buff_mode = BM_ALIGN; + dwc_memcpy(ep->bm_align, palignval, sizeof(ddma_align_buffer_setup_t)); + + return 0; +} + +/** + * This function sets a new value for the Concatenation buffer setup. + */ +static int cfi_ep_set_concat_val(uint8_t * buf, struct dwc_otg_pcd *pcd) +{ + uint8_t addr; + cfi_ep_t *ep; + struct _ddma_concat_buffer_setup_hdr *pConcatValHdr; + uint16_t *pVals; + uint32_t desccount; + int i; + uint16_t mps; + + pConcatValHdr = (struct _ddma_concat_buffer_setup_hdr *)buf; + desccount = (uint32_t) pConcatValHdr->bDescCount; + pVals = (uint16_t *) (buf + BS_CONCAT_VAL_HDR_LEN); + + /* Check the DMA descriptor count */ + if (desccount > MAX_DMA_DESCS_PER_EP) { + CFI_INFO("%s: Maximum DMA Descriptor count should be %d\n", + __func__, MAX_DMA_DESCS_PER_EP); + return -DWC_E_INVALID; + } + + addr = pConcatValHdr->bEndpointAddress; + ep = get_cfi_ep_by_addr(pcd->cfi, addr); + if (NULL == ep) { + CFI_INFO("%s: Unable to get the endpoint addr=0x%02x\n", + __func__, addr); + return -DWC_E_INVALID; + } + + mps = UGETW(ep->ep->desc->wMaxPacketSize); + +#if 0 + for (i = 0; i < desccount; i++) { + CFI_INFO("%s: wTxSize[%d]=0x%04x\n", __func__, i, pVals[i]); + } + CFI_INFO("%s: epname=%s; mps=%d\n", __func__, ep->ep->ep.name, mps); +#endif + + /* Check the wTxSizes to be less than or equal to the mps */ + for (i = 0; i < desccount; i++) { + if (pVals[i] > mps) { + CFI_INFO + ("%s: ERROR - the wTxSize[%d] should be <= MPS (wTxSize=%d)\n", + __func__, i, pVals[i]); + return -DWC_E_INVALID; + } + } + + ep->ep->dwc_ep.buff_mode = BM_CONCAT; + dwc_memcpy(ep->bm_concat, pConcatValHdr, BS_CONCAT_VAL_HDR_LEN); + + /* Free the previously allocated storage for the wTxBytes */ + if (ep->bm_concat->wTxBytes) { + DWC_FREE(ep->bm_concat->wTxBytes); + } + + /* Allocate a new storage for the wTxBytes field */ + ep->bm_concat->wTxBytes = + DWC_ALLOC(sizeof(uint16_t) * pConcatValHdr->bDescCount); + if (NULL == ep->bm_concat->wTxBytes) { + CFI_INFO("%s: Unable to allocate memory\n", __func__); + return -DWC_E_NO_MEMORY; + } + + /* Copy the new values into the wTxBytes filed */ + dwc_memcpy(ep->bm_concat->wTxBytes, buf + BS_CONCAT_VAL_HDR_LEN, + sizeof(uint16_t) * pConcatValHdr->bDescCount); + + return 0; +} + +/** + * This function calculates the total of all FIFO sizes + * + * @param core_if Programming view of DWC_otg controller + * + * @return The total of data FIFO sizes. + * + */ +static uint16_t get_dfifo_size(dwc_otg_core_if_t * core_if) +{ + dwc_otg_core_params_t *params = core_if->core_params; + uint16_t dfifo_total = 0; + int i; + + /* The shared RxFIFO size */ + dfifo_total = + params->dev_rx_fifo_size + params->dev_nperio_tx_fifo_size; + + /* Add up each TxFIFO size to the total */ + for (i = 0; i < core_if->hwcfg4.b.num_in_eps; i++) { + dfifo_total += params->dev_tx_fifo_size[i]; + } + + return dfifo_total; +} + +/** + * This function returns Rx FIFO size + * + * @param core_if Programming view of DWC_otg controller + * + * @return The total of data FIFO sizes. + * + */ +static int32_t get_rxfifo_size(dwc_otg_core_if_t * core_if, uint16_t wValue) +{ + switch (wValue >> 8) { + case 0: + return (core_if->pwron_rxfsiz < + 32768) ? core_if->pwron_rxfsiz : 32768; + break; + case 1: + return core_if->core_params->dev_rx_fifo_size; + break; + default: + return -DWC_E_INVALID; + break; + } +} + +/** + * This function returns Tx FIFO size for IN EP + * + * @param core_if Programming view of DWC_otg controller + * + * @return The total of data FIFO sizes. + * + */ +static int32_t get_txfifo_size(struct dwc_otg_pcd *pcd, uint16_t wValue) +{ + dwc_otg_pcd_ep_t *ep; + + ep = get_ep_by_addr(pcd, wValue & 0xff); + + if (NULL == ep) { + CFI_INFO("%s: Unable to get the endpoint addr=0x%02x\n", + __func__, wValue & 0xff); + return -DWC_E_INVALID; + } + + if (!ep->dwc_ep.is_in) { + CFI_INFO + ("%s: No Tx FIFO assingned to the Out endpoint addr=0x%02x\n", + __func__, wValue & 0xff); + return -DWC_E_INVALID; + } + + switch (wValue >> 8) { + case 0: + return (GET_CORE_IF(pcd)->pwron_txfsiz + [ep->dwc_ep.tx_fifo_num - 1] < + 768) ? GET_CORE_IF(pcd)->pwron_txfsiz[ep-> + dwc_ep.tx_fifo_num + - 1] : 32768; + break; + case 1: + return GET_CORE_IF(pcd)->core_params-> + dev_tx_fifo_size[ep->dwc_ep.num - 1]; + break; + default: + return -DWC_E_INVALID; + break; + } +} + +/** + * This function checks if the submitted combination of + * device mode FIFO sizes is possible or not. + * + * @param core_if Programming view of DWC_otg controller + * + * @return 1 if possible, 0 otherwise. + * + */ +static uint8_t check_fifo_sizes(dwc_otg_core_if_t * core_if) +{ + uint16_t dfifo_actual = 0; + dwc_otg_core_params_t *params = core_if->core_params; + uint16_t start_addr = 0; + int i; + + dfifo_actual = + params->dev_rx_fifo_size + params->dev_nperio_tx_fifo_size; + + for (i = 0; i < core_if->hwcfg4.b.num_in_eps; i++) { + dfifo_actual += params->dev_tx_fifo_size[i]; + } + + if (dfifo_actual > core_if->total_fifo_size) { + return 0; + } + + if (params->dev_rx_fifo_size > 32768 || params->dev_rx_fifo_size < 16) + return 0; + + if (params->dev_nperio_tx_fifo_size > 32768 + || params->dev_nperio_tx_fifo_size < 16) + return 0; + + for (i = 0; i < core_if->hwcfg4.b.num_in_eps; i++) { + + if (params->dev_tx_fifo_size[i] > 768 + || params->dev_tx_fifo_size[i] < 4) + return 0; + } + + if (params->dev_rx_fifo_size > core_if->pwron_rxfsiz) + return 0; + start_addr = params->dev_rx_fifo_size; + + if (params->dev_nperio_tx_fifo_size > core_if->pwron_gnptxfsiz) + return 0; + start_addr += params->dev_nperio_tx_fifo_size; + + for (i = 0; i < core_if->hwcfg4.b.num_in_eps; i++) { + + if (params->dev_tx_fifo_size[i] > core_if->pwron_txfsiz[i]) + return 0; + start_addr += params->dev_tx_fifo_size[i]; + } + + return 1; +} + +/** + * This function resizes Device mode FIFOs + * + * @param core_if Programming view of DWC_otg controller + * + * @return 1 if successful, 0 otherwise + * + */ +static uint8_t resize_fifos(dwc_otg_core_if_t * core_if) +{ + int i = 0; + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + dwc_otg_core_params_t *params = core_if->core_params; + uint32_t rx_fifo_size; + fifosize_data_t nptxfifosize; + fifosize_data_t txfifosize[15]; + + uint32_t rx_fsz_bak; + uint32_t nptxfsz_bak; + uint32_t txfsz_bak[15]; + + uint16_t start_address; + uint8_t retval = 1; + + if (!check_fifo_sizes(core_if)) { + return 0; + } + + /* Configure data FIFO sizes */ + if (core_if->hwcfg2.b.dynamic_fifo && params->enable_dynamic_fifo) { + rx_fsz_bak = DWC_READ_REG32(&global_regs->grxfsiz); + rx_fifo_size = params->dev_rx_fifo_size; + DWC_WRITE_REG32(&global_regs->grxfsiz, rx_fifo_size); + + /* + * Tx FIFOs These FIFOs are numbered from 1 to 15. + * Indexes of the FIFO size module parameters in the + * dev_tx_fifo_size array and the FIFO size registers in + * the dtxfsiz array run from 0 to 14. + */ + + /* Non-periodic Tx FIFO */ + nptxfsz_bak = DWC_READ_REG32(&global_regs->gnptxfsiz); + nptxfifosize.b.depth = params->dev_nperio_tx_fifo_size; + start_address = params->dev_rx_fifo_size; + nptxfifosize.b.startaddr = start_address; + + DWC_WRITE_REG32(&global_regs->gnptxfsiz, nptxfifosize.d32); + + start_address += nptxfifosize.b.depth; + + for (i = 0; i < core_if->hwcfg4.b.num_in_eps; i++) { + txfsz_bak[i] = DWC_READ_REG32(&global_regs->dtxfsiz[i]); + + txfifosize[i].b.depth = params->dev_tx_fifo_size[i]; + txfifosize[i].b.startaddr = start_address; + DWC_WRITE_REG32(&global_regs->dtxfsiz[i], + txfifosize[i].d32); + + start_address += txfifosize[i].b.depth; + } + + /** Check if register values are set correctly */ + if (rx_fifo_size != DWC_READ_REG32(&global_regs->grxfsiz)) { + retval = 0; + } + + if (nptxfifosize.d32 != DWC_READ_REG32(&global_regs->gnptxfsiz)) { + retval = 0; + } + + for (i = 0; i < core_if->hwcfg4.b.num_in_eps; i++) { + if (txfifosize[i].d32 != + DWC_READ_REG32(&global_regs->dtxfsiz[i])) { + retval = 0; + } + } + + /** If register values are not set correctly, reset old values */ + if (retval == 0) { + DWC_WRITE_REG32(&global_regs->grxfsiz, rx_fsz_bak); + + /* Non-periodic Tx FIFO */ + DWC_WRITE_REG32(&global_regs->gnptxfsiz, nptxfsz_bak); + + for (i = 0; i < core_if->hwcfg4.b.num_in_eps; i++) { + DWC_WRITE_REG32(&global_regs->dtxfsiz[i], + txfsz_bak[i]); + } + } + } else { + return 0; + } + + /* Flush the FIFOs */ + dwc_otg_flush_tx_fifo(core_if, 0x10); /* all Tx FIFOs */ + dwc_otg_flush_rx_fifo(core_if); + + return retval; +} + +/** + * This function sets a new value for the buffer Alignment setup. + */ +static int cfi_ep_set_tx_fifo_val(uint8_t * buf, dwc_otg_pcd_t * pcd) +{ + int retval; + uint32_t fsiz; + uint16_t size; + uint16_t ep_addr; + dwc_otg_pcd_ep_t *ep; + dwc_otg_core_params_t *params = GET_CORE_IF(pcd)->core_params; + tx_fifo_size_setup_t *ptxfifoval; + + ptxfifoval = (tx_fifo_size_setup_t *) buf; + ep_addr = ptxfifoval->bEndpointAddress; + size = ptxfifoval->wDepth; + + ep = get_ep_by_addr(pcd, ep_addr); + + CFI_INFO + ("%s: Set Tx FIFO size: endpoint addr=0x%02x, depth=%d, FIFO Num=%d\n", + __func__, ep_addr, size, ep->dwc_ep.tx_fifo_num); + + if (NULL == ep) { + CFI_INFO("%s: Unable to get the endpoint addr=0x%02x\n", + __func__, ep_addr); + return -DWC_E_INVALID; + } + + fsiz = params->dev_tx_fifo_size[ep->dwc_ep.tx_fifo_num - 1]; + params->dev_tx_fifo_size[ep->dwc_ep.tx_fifo_num - 1] = size; + + if (resize_fifos(GET_CORE_IF(pcd))) { + retval = 0; + } else { + CFI_INFO + ("%s: Error setting the feature Tx FIFO Size for EP%d\n", + __func__, ep_addr); + params->dev_tx_fifo_size[ep->dwc_ep.tx_fifo_num - 1] = fsiz; + retval = -DWC_E_INVALID; + } + + return retval; +} + +/** + * This function sets a new value for the buffer Alignment setup. + */ +static int cfi_set_rx_fifo_val(uint8_t * buf, dwc_otg_pcd_t * pcd) +{ + int retval; + uint32_t fsiz; + uint16_t size; + dwc_otg_core_params_t *params = GET_CORE_IF(pcd)->core_params; + rx_fifo_size_setup_t *prxfifoval; + + prxfifoval = (rx_fifo_size_setup_t *) buf; + size = prxfifoval->wDepth; + + fsiz = params->dev_rx_fifo_size; + params->dev_rx_fifo_size = size; + + if (resize_fifos(GET_CORE_IF(pcd))) { + retval = 0; + } else { + CFI_INFO("%s: Error setting the feature Rx FIFO Size\n", + __func__); + params->dev_rx_fifo_size = fsiz; + retval = -DWC_E_INVALID; + } + + return retval; +} + +/** + * This function reads the SG of an EP's buffer setup into the buffer buf + */ +static int cfi_ep_get_sg_val(uint8_t * buf, struct dwc_otg_pcd *pcd, + struct cfi_usb_ctrlrequest *req) +{ + int retval = -DWC_E_INVALID; + uint8_t addr; + cfi_ep_t *ep; + + /* The Low Byte of the wValue contains a non-zero address of the endpoint */ + addr = req->wValue & 0xFF; + if (addr == 0) /* The address should be non-zero */ + return retval; + + ep = get_cfi_ep_by_addr(pcd->cfi, addr); + if (NULL == ep) { + CFI_INFO("%s: Unable to get the endpoint address(0x%02x)\n", + __func__, addr); + return retval; + } + + dwc_memcpy(buf, ep->bm_sg, BS_SG_VAL_DESC_LEN); + retval = BS_SG_VAL_DESC_LEN; + return retval; +} + +/** + * This function reads the Concatenation value of an EP's buffer mode into + * the buffer buf + */ +static int cfi_ep_get_concat_val(uint8_t * buf, struct dwc_otg_pcd *pcd, + struct cfi_usb_ctrlrequest *req) +{ + int retval = -DWC_E_INVALID; + uint8_t addr; + cfi_ep_t *ep; + uint8_t desc_count; + + /* The Low Byte of the wValue contains a non-zero address of the endpoint */ + addr = req->wValue & 0xFF; + if (addr == 0) /* The address should be non-zero */ + return retval; + + ep = get_cfi_ep_by_addr(pcd->cfi, addr); + if (NULL == ep) { + CFI_INFO("%s: Unable to get the endpoint address(0x%02x)\n", + __func__, addr); + return retval; + } + + /* Copy the header to the buffer */ + dwc_memcpy(buf, ep->bm_concat, BS_CONCAT_VAL_HDR_LEN); + /* Advance the buffer pointer by the header size */ + buf += BS_CONCAT_VAL_HDR_LEN; + + desc_count = ep->bm_concat->hdr.bDescCount; + /* Copy alll the wTxBytes to the buffer */ + dwc_memcpy(buf, ep->bm_concat->wTxBytes, sizeof(uid16_t) * desc_count); + + retval = BS_CONCAT_VAL_HDR_LEN + sizeof(uid16_t) * desc_count; + return retval; +} + +/** + * This function reads the buffer Alignment value of an EP's buffer mode into + * the buffer buf + * + * @return The total number of bytes copied to the buffer or negative error code. + */ +static int cfi_ep_get_align_val(uint8_t * buf, struct dwc_otg_pcd *pcd, + struct cfi_usb_ctrlrequest *req) +{ + int retval = -DWC_E_INVALID; + uint8_t addr; + cfi_ep_t *ep; + + /* The Low Byte of the wValue contains a non-zero address of the endpoint */ + addr = req->wValue & 0xFF; + if (addr == 0) /* The address should be non-zero */ + return retval; + + ep = get_cfi_ep_by_addr(pcd->cfi, addr); + if (NULL == ep) { + CFI_INFO("%s: Unable to get the endpoint address(0x%02x)\n", + __func__, addr); + return retval; + } + + dwc_memcpy(buf, ep->bm_align, BS_ALIGN_VAL_HDR_LEN); + retval = BS_ALIGN_VAL_HDR_LEN; + + return retval; +} + +/** + * This function sets a new value for the specified feature + * + * @param pcd A pointer to the PCD object + * + * @return 0 if successful, negative error code otherwise to stall the DCE. + */ +static int cfi_set_feature_value(struct dwc_otg_pcd *pcd) +{ + int retval = -DWC_E_NOT_SUPPORTED; + uint16_t wIndex, wValue; + uint8_t bRequest; + struct dwc_otg_core_if *coreif; + cfiobject_t *cfi = pcd->cfi; + struct cfi_usb_ctrlrequest *ctrl_req; + uint8_t *buf; + ctrl_req = &cfi->ctrl_req; + + buf = pcd->cfi->ctrl_req.data; + + coreif = GET_CORE_IF(pcd); + bRequest = ctrl_req->bRequest; + wIndex = DWC_CONSTANT_CPU_TO_LE16(ctrl_req->wIndex); + wValue = DWC_CONSTANT_CPU_TO_LE16(ctrl_req->wValue); + + /* See which feature is to be modified */ + switch (wIndex) { + case FT_ID_DMA_BUFFER_SETUP: + /* Modify the feature */ + if ((retval = cfi_ep_set_sg_val(buf, pcd)) < 0) + return retval; + + /* And send this request to the gadget */ + cfi->need_gadget_att = 1; + break; + + case FT_ID_DMA_BUFF_ALIGN: + if ((retval = cfi_ep_set_alignment_val(buf, pcd)) < 0) + return retval; + cfi->need_gadget_att = 1; + break; + + case FT_ID_DMA_CONCAT_SETUP: + /* Modify the feature */ + if ((retval = cfi_ep_set_concat_val(buf, pcd)) < 0) + return retval; + cfi->need_gadget_att = 1; + break; + + case FT_ID_DMA_CIRCULAR: + CFI_INFO("FT_ID_DMA_CIRCULAR\n"); + break; + + case FT_ID_THRESHOLD_SETUP: + CFI_INFO("FT_ID_THRESHOLD_SETUP\n"); + break; + + case FT_ID_DFIFO_DEPTH: + CFI_INFO("FT_ID_DFIFO_DEPTH\n"); + break; + + case FT_ID_TX_FIFO_DEPTH: + CFI_INFO("FT_ID_TX_FIFO_DEPTH\n"); + if ((retval = cfi_ep_set_tx_fifo_val(buf, pcd)) < 0) + return retval; + cfi->need_gadget_att = 0; + break; + + case FT_ID_RX_FIFO_DEPTH: + CFI_INFO("FT_ID_RX_FIFO_DEPTH\n"); + if ((retval = cfi_set_rx_fifo_val(buf, pcd)) < 0) + return retval; + cfi->need_gadget_att = 0; + break; + } + + return retval; +} + +#endif //DWC_UTE_CFI diff --git a/drivers/usb/host/dwc_otg/dwc_otg_cfi.h b/drivers/usb/host/dwc_otg/dwc_otg_cfi.h new file mode 100644 index 0000000000000000000000000000000000000000..55fd337a283c39512eb1409dfc1183c56dfd7680 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_cfi.h @@ -0,0 +1,320 @@ +/* ========================================================================== + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +#if !defined(__DWC_OTG_CFI_H__) +#define __DWC_OTG_CFI_H__ + +#include "dwc_otg_pcd.h" +#include "dwc_cfi_common.h" + +/** + * @file + * This file contains the CFI related OTG PCD specific common constants, + * interfaces(functions and macros) and data structures.The CFI Protocol is an + * optional interface for internal testing purposes that a DUT may implement to + * support testing of configurable features. + * + */ + +struct dwc_otg_pcd; +struct dwc_otg_pcd_ep; + +/** OTG CFI Features (properties) ID constants */ +/** This is a request for all Core Features */ +#define FT_ID_DMA_MODE 0x0001 +#define FT_ID_DMA_BUFFER_SETUP 0x0002 +#define FT_ID_DMA_BUFF_ALIGN 0x0003 +#define FT_ID_DMA_CONCAT_SETUP 0x0004 +#define FT_ID_DMA_CIRCULAR 0x0005 +#define FT_ID_THRESHOLD_SETUP 0x0006 +#define FT_ID_DFIFO_DEPTH 0x0007 +#define FT_ID_TX_FIFO_DEPTH 0x0008 +#define FT_ID_RX_FIFO_DEPTH 0x0009 + +/**********************************************************/ +#define CFI_INFO_DEF + +#ifdef CFI_INFO_DEF +#define CFI_INFO(fmt...) DWC_PRINTF("CFI: " fmt); +#else +#define CFI_INFO(fmt...) +#endif + +#define min(x,y) ({ \ + x < y ? x : y; }) + +#define max(x,y) ({ \ + x > y ? x : y; }) + +/** + * Descriptor DMA SG Buffer setup structure (SG buffer). This structure is + * also used for setting up a buffer for Circular DDMA. + */ +struct _ddma_sg_buffer_setup { +#define BS_SG_VAL_DESC_LEN 6 + /* The OUT EP address */ + uint8_t bOutEndpointAddress; + /* The IN EP address */ + uint8_t bInEndpointAddress; + /* Number of bytes to put between transfer segments (must be DWORD boundaries) */ + uint8_t bOffset; + /* The number of transfer segments (a DMA descriptors per each segment) */ + uint8_t bCount; + /* Size (in byte) of each transfer segment */ + uint16_t wSize; +} __attribute__ ((packed)); +typedef struct _ddma_sg_buffer_setup ddma_sg_buffer_setup_t; + +/** Descriptor DMA Concatenation Buffer setup structure */ +struct _ddma_concat_buffer_setup_hdr { +#define BS_CONCAT_VAL_HDR_LEN 4 + /* The endpoint for which the buffer is to be set up */ + uint8_t bEndpointAddress; + /* The count of descriptors to be used */ + uint8_t bDescCount; + /* The total size of the transfer */ + uint16_t wSize; +} __attribute__ ((packed)); +typedef struct _ddma_concat_buffer_setup_hdr ddma_concat_buffer_setup_hdr_t; + +/** Descriptor DMA Concatenation Buffer setup structure */ +struct _ddma_concat_buffer_setup { + /* The SG header */ + ddma_concat_buffer_setup_hdr_t hdr; + + /* The XFER sizes pointer (allocated dynamically) */ + uint16_t *wTxBytes; +} __attribute__ ((packed)); +typedef struct _ddma_concat_buffer_setup ddma_concat_buffer_setup_t; + +/** Descriptor DMA Alignment Buffer setup structure */ +struct _ddma_align_buffer_setup { +#define BS_ALIGN_VAL_HDR_LEN 2 + uint8_t bEndpointAddress; + uint8_t bAlign; +} __attribute__ ((packed)); +typedef struct _ddma_align_buffer_setup ddma_align_buffer_setup_t; + +/** Transmit FIFO Size setup structure */ +struct _tx_fifo_size_setup { + uint8_t bEndpointAddress; + uint16_t wDepth; +} __attribute__ ((packed)); +typedef struct _tx_fifo_size_setup tx_fifo_size_setup_t; + +/** Transmit FIFO Size setup structure */ +struct _rx_fifo_size_setup { + uint16_t wDepth; +} __attribute__ ((packed)); +typedef struct _rx_fifo_size_setup rx_fifo_size_setup_t; + +/** + * struct cfi_usb_ctrlrequest - the CFI implementation of the struct usb_ctrlrequest + * This structure encapsulates the standard usb_ctrlrequest and adds a pointer + * to the data returned in the data stage of a 3-stage Control Write requests. + */ +struct cfi_usb_ctrlrequest { + uint8_t bRequestType; + uint8_t bRequest; + uint16_t wValue; + uint16_t wIndex; + uint16_t wLength; + uint8_t *data; +} UPACKED; + +/*---------------------------------------------------------------------------*/ + +/** + * The CFI wrapper of the enabled and activated dwc_otg_pcd_ep structures. + * This structure is used to store the buffer setup data for any + * enabled endpoint in the PCD. + */ +struct cfi_ep { + /* Entry for the list container */ + dwc_list_link_t lh; + /* Pointer to the active PCD endpoint structure */ + struct dwc_otg_pcd_ep *ep; + /* The last descriptor in the chain of DMA descriptors of the endpoint */ + struct dwc_otg_dma_desc *dma_desc_last; + /* The SG feature value */ + ddma_sg_buffer_setup_t *bm_sg; + /* The Circular feature value */ + ddma_sg_buffer_setup_t *bm_circ; + /* The Concatenation feature value */ + ddma_concat_buffer_setup_t *bm_concat; + /* The Alignment feature value */ + ddma_align_buffer_setup_t *bm_align; + /* XFER length */ + uint32_t xfer_len; + /* + * Count of DMA descriptors currently used. + * The total should not exceed the MAX_DMA_DESCS_PER_EP value + * defined in the dwc_otg_cil.h + */ + uint32_t desc_count; +}; +typedef struct cfi_ep cfi_ep_t; + +typedef struct cfi_dma_buff { +#define CFI_IN_BUF_LEN 1024 +#define CFI_OUT_BUF_LEN 1024 + dma_addr_t addr; + uint8_t *buf; +} cfi_dma_buff_t; + +struct cfiobject; + +/** + * This is the interface for the CFI operations. + * + * @param ep_enable Called when any endpoint is enabled and activated. + * @param release Called when the CFI object is released and it needs to correctly + * deallocate the dynamic memory + * @param ctrl_write_complete Called when the data stage of the request is complete + */ +typedef struct cfi_ops { + int (*ep_enable) (struct cfiobject * cfi, struct dwc_otg_pcd * pcd, + struct dwc_otg_pcd_ep * ep); + void *(*ep_alloc_buf) (struct cfiobject * cfi, struct dwc_otg_pcd * pcd, + struct dwc_otg_pcd_ep * ep, dma_addr_t * dma, + unsigned size, gfp_t flags); + void (*release) (struct cfiobject * cfi); + int (*ctrl_write_complete) (struct cfiobject * cfi, + struct dwc_otg_pcd * pcd); + void (*build_descriptors) (struct cfiobject * cfi, + struct dwc_otg_pcd * pcd, + struct dwc_otg_pcd_ep * ep, + dwc_otg_pcd_request_t * req); +} cfi_ops_t; + +struct cfiobject { + cfi_ops_t ops; + struct dwc_otg_pcd *pcd; + struct usb_gadget *gadget; + + /* Buffers used to send/receive CFI-related request data */ + cfi_dma_buff_t buf_in; + cfi_dma_buff_t buf_out; + + /* CFI specific Control request wrapper */ + struct cfi_usb_ctrlrequest ctrl_req; + + /* The list of active EP's in the PCD of type cfi_ep_t */ + dwc_list_link_t active_eps; + + /* This flag shall control the propagation of a specific request + * to the gadget's processing routines. + * 0 - no gadget handling + * 1 - the gadget needs to know about this request (w/o completing a status + * phase - just return a 0 to the _setup callback) + */ + uint8_t need_gadget_att; + + /* Flag indicating whether the status IN phase needs to be + * completed by the PCD + */ + uint8_t need_status_in_complete; +}; +typedef struct cfiobject cfiobject_t; + +#define DUMP_MSG + +#if defined(DUMP_MSG) +static inline void dump_msg(const u8 * buf, unsigned int length) +{ + unsigned int start, num, i; + char line[52], *p; + + if (length >= 512) + return; + + start = 0; + while (length > 0) { + num = min(length, 16u); + p = line; + for (i = 0; i < num; ++i) { + if (i == 8) + *p++ = ' '; + DWC_SPRINTF(p, " %02x", buf[i]); + p += 3; + } + *p = 0; + DWC_DEBUG("%6x: %s\n", start, line); + buf += num; + start += num; + length -= num; + } +} +#else +static inline void dump_msg(const u8 * buf, unsigned int length) +{ +} +#endif + +/** + * This function returns a pointer to cfi_ep_t object with the addr address. + */ +static inline struct cfi_ep *get_cfi_ep_by_addr(struct cfiobject *cfi, + uint8_t addr) +{ + struct cfi_ep *pcfiep; + dwc_list_link_t *tmp; + + DWC_LIST_FOREACH(tmp, &cfi->active_eps) { + pcfiep = DWC_LIST_ENTRY(tmp, struct cfi_ep, lh); + + if (pcfiep->ep->desc->bEndpointAddress == addr) { + return pcfiep; + } + } + + return NULL; +} + +/** + * This function returns a pointer to cfi_ep_t object that matches + * the dwc_otg_pcd_ep object. + */ +static inline struct cfi_ep *get_cfi_ep_by_pcd_ep(struct cfiobject *cfi, + struct dwc_otg_pcd_ep *ep) +{ + struct cfi_ep *pcfiep = NULL; + dwc_list_link_t *tmp; + + DWC_LIST_FOREACH(tmp, &cfi->active_eps) { + pcfiep = DWC_LIST_ENTRY(tmp, struct cfi_ep, lh); + if (pcfiep->ep == ep) { + return pcfiep; + } + } + return NULL; +} + +int cfi_setup(struct dwc_otg_pcd *pcd, struct cfi_usb_ctrlrequest *ctrl); + +#endif /* (__DWC_OTG_CFI_H__) */ diff --git a/drivers/usb/host/dwc_otg/dwc_otg_cil.c b/drivers/usb/host/dwc_otg/dwc_otg_cil.c new file mode 100644 index 0000000000000000000000000000000000000000..38abd0b1f0341b50a2d7ad7493e2d09b6b8a55a9 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_cil.c @@ -0,0 +1,7141 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_cil.c $ + * $Revision: #191 $ + * $Date: 2012/08/10 $ + * $Change: 2047372 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +/** @file + * + * The Core Interface Layer provides basic services for accessing and + * managing the DWC_otg hardware. These services are used by both the + * Host Controller Driver and the Peripheral Controller Driver. + * + * The CIL manages the memory map for the core so that the HCD and PCD + * don't have to do this separately. It also handles basic tasks like + * reading/writing the registers and data FIFOs in the controller. + * Some of the data access functions provide encapsulation of several + * operations required to perform a task, such as writing multiple + * registers to start a transfer. Finally, the CIL performs basic + * services that are not specific to either the host or device modes + * of operation. These services include management of the OTG Host + * Negotiation Protocol (HNP) and Session Request Protocol (SRP). A + * Diagnostic API is also provided to allow testing of the controller + * hardware. + * + * The Core Interface Layer has the following requirements: + * - Provides basic controller operations. + * - Minimal use of OS services. + * - The OS services used will be abstracted by using inline functions + * or macros. + * + */ + +#include "dwc_os.h" +#include "dwc_otg_regs.h" +#include "dwc_otg_cil.h" + +static int dwc_otg_setup_params(dwc_otg_core_if_t * core_if); + +/** + * This function is called to initialize the DWC_otg CSR data + * structures. The register addresses in the device and host + * structures are initialized from the base address supplied by the + * caller. The calling function must make the OS calls to get the + * base address of the DWC_otg controller registers. The core_params + * argument holds the parameters that specify how the core should be + * configured. + * + * @param reg_base_addr Base address of DWC_otg core registers + * + */ +dwc_otg_core_if_t *dwc_otg_cil_init(const uint32_t * reg_base_addr) +{ + dwc_otg_core_if_t *core_if = 0; + dwc_otg_dev_if_t *dev_if = 0; + dwc_otg_host_if_t *host_if = 0; + uint8_t *reg_base = (uint8_t *) reg_base_addr; + int i = 0; + + DWC_DEBUGPL(DBG_CILV, "%s(%p)\n", __func__, reg_base_addr); + + core_if = DWC_ALLOC(sizeof(dwc_otg_core_if_t)); + + if (core_if == NULL) { + DWC_DEBUGPL(DBG_CIL, + "Allocation of dwc_otg_core_if_t failed\n"); + return 0; + } + core_if->core_global_regs = (dwc_otg_core_global_regs_t *) reg_base; + + /* + * Allocate the Device Mode structures. + */ + dev_if = DWC_ALLOC(sizeof(dwc_otg_dev_if_t)); + + if (dev_if == NULL) { + DWC_DEBUGPL(DBG_CIL, "Allocation of dwc_otg_dev_if_t failed\n"); + DWC_FREE(core_if); + return 0; + } + + dev_if->dev_global_regs = + (dwc_otg_device_global_regs_t *) (reg_base + + DWC_DEV_GLOBAL_REG_OFFSET); + + for (i = 0; i < MAX_EPS_CHANNELS; i++) { + dev_if->in_ep_regs[i] = (dwc_otg_dev_in_ep_regs_t *) + (reg_base + DWC_DEV_IN_EP_REG_OFFSET + + (i * DWC_EP_REG_OFFSET)); + + dev_if->out_ep_regs[i] = (dwc_otg_dev_out_ep_regs_t *) + (reg_base + DWC_DEV_OUT_EP_REG_OFFSET + + (i * DWC_EP_REG_OFFSET)); + DWC_DEBUGPL(DBG_CILV, "in_ep_regs[%d]->diepctl=%p\n", + i, &dev_if->in_ep_regs[i]->diepctl); + DWC_DEBUGPL(DBG_CILV, "out_ep_regs[%d]->doepctl=%p\n", + i, &dev_if->out_ep_regs[i]->doepctl); + } + + dev_if->speed = 0; // unknown + + core_if->dev_if = dev_if; + + /* + * Allocate the Host Mode structures. + */ + host_if = DWC_ALLOC(sizeof(dwc_otg_host_if_t)); + + if (host_if == NULL) { + DWC_DEBUGPL(DBG_CIL, + "Allocation of dwc_otg_host_if_t failed\n"); + DWC_FREE(dev_if); + DWC_FREE(core_if); + return 0; + } + + host_if->host_global_regs = (dwc_otg_host_global_regs_t *) + (reg_base + DWC_OTG_HOST_GLOBAL_REG_OFFSET); + + host_if->hprt0 = + (uint32_t *) (reg_base + DWC_OTG_HOST_PORT_REGS_OFFSET); + + for (i = 0; i < MAX_EPS_CHANNELS; i++) { + host_if->hc_regs[i] = (dwc_otg_hc_regs_t *) + (reg_base + DWC_OTG_HOST_CHAN_REGS_OFFSET + + (i * DWC_OTG_CHAN_REGS_OFFSET)); + DWC_DEBUGPL(DBG_CILV, "hc_reg[%d]->hcchar=%p\n", + i, &host_if->hc_regs[i]->hcchar); + } + + host_if->num_host_channels = MAX_EPS_CHANNELS; + core_if->host_if = host_if; + + for (i = 0; i < MAX_EPS_CHANNELS; i++) { + core_if->data_fifo[i] = + (uint32_t *) (reg_base + DWC_OTG_DATA_FIFO_OFFSET + + (i * DWC_OTG_DATA_FIFO_SIZE)); + DWC_DEBUGPL(DBG_CILV, "data_fifo[%d]=0x%08lx\n", + i, (unsigned long)core_if->data_fifo[i]); + } + + core_if->pcgcctl = (uint32_t *) (reg_base + DWC_OTG_PCGCCTL_OFFSET); + + /* Initiate lx_state to L3 disconnected state */ + core_if->lx_state = DWC_OTG_L3; + /* + * Store the contents of the hardware configuration registers here for + * easy access later. + */ + core_if->hwcfg1.d32 = + DWC_READ_REG32(&core_if->core_global_regs->ghwcfg1); + core_if->hwcfg2.d32 = + DWC_READ_REG32(&core_if->core_global_regs->ghwcfg2); + core_if->hwcfg3.d32 = + DWC_READ_REG32(&core_if->core_global_regs->ghwcfg3); + core_if->hwcfg4.d32 = + DWC_READ_REG32(&core_if->core_global_regs->ghwcfg4); + + /* Force host mode to get HPTXFSIZ exact power on value */ + { + gusbcfg_data_t gusbcfg = {.d32 = 0 }; + gusbcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->gusbcfg); + gusbcfg.b.force_host_mode = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg, gusbcfg.d32); + dwc_mdelay(100); + core_if->hptxfsiz.d32 = + DWC_READ_REG32(&core_if->core_global_regs->hptxfsiz); + gusbcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->gusbcfg); + gusbcfg.b.force_host_mode = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg, gusbcfg.d32); + dwc_mdelay(100); + } + + DWC_DEBUGPL(DBG_CILV, "hwcfg1=%08x\n", core_if->hwcfg1.d32); + DWC_DEBUGPL(DBG_CILV, "hwcfg2=%08x\n", core_if->hwcfg2.d32); + DWC_DEBUGPL(DBG_CILV, "hwcfg3=%08x\n", core_if->hwcfg3.d32); + DWC_DEBUGPL(DBG_CILV, "hwcfg4=%08x\n", core_if->hwcfg4.d32); + + core_if->hcfg.d32 = + DWC_READ_REG32(&core_if->host_if->host_global_regs->hcfg); + core_if->dcfg.d32 = + DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dcfg); + + DWC_DEBUGPL(DBG_CILV, "hcfg=%08x\n", core_if->hcfg.d32); + DWC_DEBUGPL(DBG_CILV, "dcfg=%08x\n", core_if->dcfg.d32); + + DWC_DEBUGPL(DBG_CILV, "op_mode=%0x\n", core_if->hwcfg2.b.op_mode); + DWC_DEBUGPL(DBG_CILV, "arch=%0x\n", core_if->hwcfg2.b.architecture); + DWC_DEBUGPL(DBG_CILV, "num_dev_ep=%d\n", core_if->hwcfg2.b.num_dev_ep); + DWC_DEBUGPL(DBG_CILV, "num_host_chan=%d\n", + core_if->hwcfg2.b.num_host_chan); + DWC_DEBUGPL(DBG_CILV, "nonperio_tx_q_depth=0x%0x\n", + core_if->hwcfg2.b.nonperio_tx_q_depth); + DWC_DEBUGPL(DBG_CILV, "host_perio_tx_q_depth=0x%0x\n", + core_if->hwcfg2.b.host_perio_tx_q_depth); + DWC_DEBUGPL(DBG_CILV, "dev_token_q_depth=0x%0x\n", + core_if->hwcfg2.b.dev_token_q_depth); + + DWC_DEBUGPL(DBG_CILV, "Total FIFO SZ=%d\n", + core_if->hwcfg3.b.dfifo_depth); + DWC_DEBUGPL(DBG_CILV, "xfer_size_cntr_width=%0x\n", + core_if->hwcfg3.b.xfer_size_cntr_width); + + /* + * Set the SRP sucess bit for FS-I2c + */ + core_if->srp_success = 0; + core_if->srp_timer_started = 0; + + /* + * Create new workqueue and init works + */ + core_if->wq_otg = DWC_WORKQ_ALLOC("dwc_otg"); + if (core_if->wq_otg == 0) { + DWC_WARN("DWC_WORKQ_ALLOC failed\n"); + DWC_FREE(host_if); + DWC_FREE(dev_if); + DWC_FREE(core_if); + return 0; + } + + core_if->snpsid = DWC_READ_REG32(&core_if->core_global_regs->gsnpsid); + + DWC_PRINTF("Core Release: %x.%x%x%x\n", + (core_if->snpsid >> 12 & 0xF), + (core_if->snpsid >> 8 & 0xF), + (core_if->snpsid >> 4 & 0xF), (core_if->snpsid & 0xF)); + + core_if->wkp_timer = DWC_TIMER_ALLOC("Wake Up Timer", + w_wakeup_detected, core_if); + if (core_if->wkp_timer == 0) { + DWC_WARN("DWC_TIMER_ALLOC failed\n"); + DWC_FREE(host_if); + DWC_FREE(dev_if); + DWC_WORKQ_FREE(core_if->wq_otg); + DWC_FREE(core_if); + return 0; + } + + if (dwc_otg_setup_params(core_if)) { + DWC_WARN("Error while setting core params\n"); + } + + core_if->hibernation_suspend = 0; + + /** ADP initialization */ + dwc_otg_adp_init(core_if); + + return core_if; +} + +/** + * This function frees the structures allocated by dwc_otg_cil_init(). + * + * @param core_if The core interface pointer returned from + * dwc_otg_cil_init(). + * + */ +void dwc_otg_cil_remove(dwc_otg_core_if_t * core_if) +{ + dctl_data_t dctl = {.d32 = 0 }; + DWC_DEBUGPL(DBG_CILV, "%s(%p)\n", __func__, core_if); + + /* Disable all interrupts */ + DWC_MODIFY_REG32(&core_if->core_global_regs->gahbcfg, 1, 0); + DWC_WRITE_REG32(&core_if->core_global_regs->gintmsk, 0); + + dctl.b.sftdiscon = 1; + if (core_if->snpsid >= OTG_CORE_REV_3_00a) { + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, 0, + dctl.d32); + } + + if (core_if->wq_otg) { + DWC_WORKQ_WAIT_WORK_DONE(core_if->wq_otg, 500); + DWC_WORKQ_FREE(core_if->wq_otg); + } + if (core_if->dev_if) { + DWC_FREE(core_if->dev_if); + } + if (core_if->host_if) { + DWC_FREE(core_if->host_if); + } + + /** Remove ADP Stuff */ + dwc_otg_adp_remove(core_if); + if (core_if->core_params) { + DWC_FREE(core_if->core_params); + } + if (core_if->wkp_timer) { + DWC_TIMER_FREE(core_if->wkp_timer); + } + if (core_if->srp_timer) { + DWC_TIMER_FREE(core_if->srp_timer); + } + DWC_FREE(core_if); +} + +/** + * This function enables the controller's Global Interrupt in the AHB Config + * register. + * + * @param core_if Programming view of DWC_otg controller. + */ +void dwc_otg_enable_global_interrupts(dwc_otg_core_if_t * core_if) +{ + gahbcfg_data_t ahbcfg = {.d32 = 0 }; + ahbcfg.b.glblintrmsk = 1; /* Enable interrupts */ + DWC_MODIFY_REG32(&core_if->core_global_regs->gahbcfg, 0, ahbcfg.d32); +} + +/** + * This function disables the controller's Global Interrupt in the AHB Config + * register. + * + * @param core_if Programming view of DWC_otg controller. + */ +void dwc_otg_disable_global_interrupts(dwc_otg_core_if_t * core_if) +{ + gahbcfg_data_t ahbcfg = {.d32 = 0 }; + ahbcfg.b.glblintrmsk = 1; /* Disable interrupts */ + DWC_MODIFY_REG32(&core_if->core_global_regs->gahbcfg, ahbcfg.d32, 0); +} + +/** + * This function initializes the commmon interrupts, used in both + * device and host modes. + * + * @param core_if Programming view of the DWC_otg controller + * + */ +static void dwc_otg_enable_common_interrupts(dwc_otg_core_if_t * core_if) +{ + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + gintmsk_data_t intr_mask = {.d32 = 0 }; + + /* Clear any pending OTG Interrupts */ + DWC_WRITE_REG32(&global_regs->gotgint, 0xFFFFFFFF); + + /* Clear any pending interrupts */ + DWC_WRITE_REG32(&global_regs->gintsts, 0xFFFFFFFF); + + /* + * Enable the interrupts in the GINTMSK. + */ + intr_mask.b.modemismatch = 1; + intr_mask.b.otgintr = 1; + + if (!core_if->dma_enable) { + intr_mask.b.rxstsqlvl = 1; + } + + intr_mask.b.conidstschng = 1; + intr_mask.b.wkupintr = 1; + intr_mask.b.disconnect = 0; + intr_mask.b.usbsuspend = 1; + intr_mask.b.sessreqintr = 1; +#ifdef CONFIG_USB_DWC_OTG_LPM + if (core_if->core_params->lpm_enable) { + intr_mask.b.lpmtranrcvd = 1; + } +#endif + DWC_WRITE_REG32(&global_regs->gintmsk, intr_mask.d32); +} + +/* + * The restore operation is modified to support Synopsys Emulated Powerdown and + * Hibernation. This function is for exiting from Device mode hibernation by + * Host Initiated Resume/Reset and Device Initiated Remote-Wakeup. + * @param core_if Programming view of DWC_otg controller. + * @param rem_wakeup - indicates whether resume is initiated by Device or Host. + * @param reset - indicates whether resume is initiated by Reset. + */ +int dwc_otg_device_hibernation_restore(dwc_otg_core_if_t * core_if, + int rem_wakeup, int reset) +{ + gpwrdn_data_t gpwrdn = {.d32 = 0 }; + pcgcctl_data_t pcgcctl = {.d32 = 0 }; + dctl_data_t dctl = {.d32 = 0 }; + + int timeout = 2000; + + if (!core_if->hibernation_suspend) { + DWC_PRINTF("Already exited from Hibernation\n"); + return 1; + } + + DWC_DEBUGPL(DBG_PCD, "%s called\n", __FUNCTION__); + /* Switch-on voltage to the core */ + gpwrdn.b.pwrdnswtch = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + /* Reset core */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnrstn = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + /* Assert Restore signal */ + gpwrdn.d32 = 0; + gpwrdn.b.restore = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32); + dwc_udelay(10); + + /* Disable power clamps */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnclmp = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + + if (rem_wakeup) { + dwc_udelay(70); + } + + /* Deassert Reset core */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnrstn = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32); + dwc_udelay(10); + + /* Disable PMU interrupt */ + gpwrdn.d32 = 0; + gpwrdn.b.pmuintsel = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + + /* Mask interrupts from gpwrdn */ + gpwrdn.d32 = 0; + gpwrdn.b.connect_det_msk = 1; + gpwrdn.b.srp_det_msk = 1; + gpwrdn.b.disconn_det_msk = 1; + gpwrdn.b.rst_det_msk = 1; + gpwrdn.b.lnstchng_msk = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + + /* Indicates that we are going out from hibernation */ + core_if->hibernation_suspend = 0; + + /* + * Set Restore Essential Regs bit in PCGCCTL register, restore_mode = 1 + * indicates restore from remote_wakeup + */ + restore_essential_regs(core_if, rem_wakeup, 0); + + /* + * Wait a little for seeing new value of variable hibernation_suspend if + * Restore done interrupt received before polling + */ + dwc_udelay(10); + + if (core_if->hibernation_suspend == 0) { + /* + * Wait For Restore_done Interrupt. This mechanism of polling the + * interrupt is introduced to avoid any possible race conditions + */ + do { + gintsts_data_t gintsts; + gintsts.d32 = + DWC_READ_REG32(&core_if->core_global_regs->gintsts); + if (gintsts.b.restoredone) { + gintsts.d32 = 0; + gintsts.b.restoredone = 1; + DWC_WRITE_REG32(&core_if->core_global_regs-> + gintsts, gintsts.d32); + DWC_PRINTF("Restore Done Interrupt seen\n"); + break; + } + dwc_udelay(10); + } while (--timeout); + if (!timeout) { + DWC_PRINTF("Restore Done interrupt wasn't generated here\n"); + } + } + /* Clear all pending interupts */ + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, 0xFFFFFFFF); + + /* De-assert Restore */ + gpwrdn.d32 = 0; + gpwrdn.b.restore = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + if (!rem_wakeup) { + pcgcctl.d32 = 0; + pcgcctl.b.rstpdwnmodule = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, pcgcctl.d32, 0); + } + + /* Restore GUSBCFG and DCFG */ + DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg, + core_if->gr_backup->gusbcfg_local); + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dcfg, + core_if->dr_backup->dcfg); + + /* De-assert Wakeup Logic */ + gpwrdn.d32 = 0; + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + if (!rem_wakeup) { + /* Set Device programming done bit */ + dctl.b.pwronprgdone = 1; + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, 0, dctl.d32); + } else { + /* Start Remote Wakeup Signaling */ + dctl.d32 = core_if->dr_backup->dctl; + dctl.b.rmtwkupsig = 1; + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32); + } + + dwc_mdelay(2); + /* Clear all pending interupts */ + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, 0xFFFFFFFF); + + /* Restore global registers */ + dwc_otg_restore_global_regs(core_if); + /* Restore device global registers */ + dwc_otg_restore_dev_regs(core_if, rem_wakeup); + + if (rem_wakeup) { + dwc_mdelay(7); + dctl.d32 = 0; + dctl.b.rmtwkupsig = 1; + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32, 0); + } + + core_if->hibernation_suspend = 0; + /* The core will be in ON STATE */ + core_if->lx_state = DWC_OTG_L0; + DWC_PRINTF("Hibernation recovery completes here\n"); + + return 1; +} + +/* + * The restore operation is modified to support Synopsys Emulated Powerdown and + * Hibernation. This function is for exiting from Host mode hibernation by + * Host Initiated Resume/Reset and Device Initiated Remote-Wakeup. + * @param core_if Programming view of DWC_otg controller. + * @param rem_wakeup - indicates whether resume is initiated by Device or Host. + * @param reset - indicates whether resume is initiated by Reset. + */ +int dwc_otg_host_hibernation_restore(dwc_otg_core_if_t * core_if, + int rem_wakeup, int reset) +{ + gpwrdn_data_t gpwrdn = {.d32 = 0 }; + hprt0_data_t hprt0 = {.d32 = 0 }; + + int timeout = 2000; + + DWC_DEBUGPL(DBG_HCD, "%s called\n", __FUNCTION__); + /* Switch-on voltage to the core */ + gpwrdn.b.pwrdnswtch = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + /* Reset core */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnrstn = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + /* Assert Restore signal */ + gpwrdn.d32 = 0; + gpwrdn.b.restore = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32); + dwc_udelay(10); + + /* Disable power clamps */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnclmp = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + + if (!rem_wakeup) { + dwc_udelay(50); + } + + /* Deassert Reset core */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnrstn = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32); + dwc_udelay(10); + + /* Disable PMU interrupt */ + gpwrdn.d32 = 0; + gpwrdn.b.pmuintsel = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + + gpwrdn.d32 = 0; + gpwrdn.b.connect_det_msk = 1; + gpwrdn.b.srp_det_msk = 1; + gpwrdn.b.disconn_det_msk = 1; + gpwrdn.b.rst_det_msk = 1; + gpwrdn.b.lnstchng_msk = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + + /* Indicates that we are going out from hibernation */ + core_if->hibernation_suspend = 0; + + /* Set Restore Essential Regs bit in PCGCCTL register */ + restore_essential_regs(core_if, rem_wakeup, 1); + + /* Wait a little for seeing new value of variable hibernation_suspend if + * Restore done interrupt received before polling */ + dwc_udelay(10); + + if (core_if->hibernation_suspend == 0) { + /* Wait For Restore_done Interrupt. This mechanism of polling the + * interrupt is introduced to avoid any possible race conditions + */ + do { + gintsts_data_t gintsts; + gintsts.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintsts); + if (gintsts.b.restoredone) { + gintsts.d32 = 0; + gintsts.b.restoredone = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32); + DWC_DEBUGPL(DBG_HCD,"Restore Done Interrupt seen\n"); + break; + } + dwc_udelay(10); + } while (--timeout); + if (!timeout) { + DWC_WARN("Restore Done interrupt wasn't generated\n"); + } + } + + /* Set the flag's value to 0 again after receiving restore done interrupt */ + core_if->hibernation_suspend = 0; + + /* This step is not described in functional spec but if not wait for this + * delay, mismatch interrupts occurred because just after restore core is + * in Device mode(gintsts.curmode == 0) */ + dwc_mdelay(100); + + /* Clear all pending interrupts */ + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, 0xFFFFFFFF); + + /* De-assert Restore */ + gpwrdn.d32 = 0; + gpwrdn.b.restore = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + /* Restore GUSBCFG and HCFG */ + DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg, + core_if->gr_backup->gusbcfg_local); + DWC_WRITE_REG32(&core_if->host_if->host_global_regs->hcfg, + core_if->hr_backup->hcfg_local); + + /* De-assert Wakeup Logic */ + gpwrdn.d32 = 0; + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + /* Start the Resume operation by programming HPRT0 */ + hprt0.d32 = core_if->hr_backup->hprt0_local; + hprt0.b.prtpwr = 1; + hprt0.b.prtena = 0; + hprt0.b.prtsusp = 0; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + + DWC_PRINTF("Resume Starts Now\n"); + if (!reset) { // Indicates it is Resume Operation + hprt0.d32 = core_if->hr_backup->hprt0_local; + hprt0.b.prtres = 1; + hprt0.b.prtpwr = 1; + hprt0.b.prtena = 0; + hprt0.b.prtsusp = 0; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + + if (!rem_wakeup) + hprt0.b.prtres = 0; + /* Wait for Resume time and then program HPRT again */ + dwc_mdelay(100); + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + + } else { // Indicates it is Reset Operation + hprt0.d32 = core_if->hr_backup->hprt0_local; + hprt0.b.prtrst = 1; + hprt0.b.prtpwr = 1; + hprt0.b.prtena = 0; + hprt0.b.prtsusp = 0; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + /* Wait for Reset time and then program HPRT again */ + dwc_mdelay(60); + hprt0.b.prtrst = 0; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + } + /* Clear all interrupt status */ + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtconndet = 1; + hprt0.b.prtenchng = 1; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + + /* Clear all pending interupts */ + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, 0xFFFFFFFF); + + /* Restore global registers */ + dwc_otg_restore_global_regs(core_if); + /* Restore host global registers */ + dwc_otg_restore_host_regs(core_if, reset); + + /* The core will be in ON STATE */ + core_if->lx_state = DWC_OTG_L0; + DWC_PRINTF("Hibernation recovery is complete here\n"); + return 0; +} + +/** Saves some register values into system memory. */ +int dwc_otg_save_global_regs(dwc_otg_core_if_t * core_if) +{ + struct dwc_otg_global_regs_backup *gr; + int i; + + gr = core_if->gr_backup; + if (!gr) { + gr = DWC_ALLOC(sizeof(*gr)); + if (!gr) { + return -DWC_E_NO_MEMORY; + } + core_if->gr_backup = gr; + } + + gr->gotgctl_local = DWC_READ_REG32(&core_if->core_global_regs->gotgctl); + gr->gintmsk_local = DWC_READ_REG32(&core_if->core_global_regs->gintmsk); + gr->gahbcfg_local = DWC_READ_REG32(&core_if->core_global_regs->gahbcfg); + gr->gusbcfg_local = DWC_READ_REG32(&core_if->core_global_regs->gusbcfg); + gr->grxfsiz_local = DWC_READ_REG32(&core_if->core_global_regs->grxfsiz); + gr->gnptxfsiz_local = DWC_READ_REG32(&core_if->core_global_regs->gnptxfsiz); + gr->hptxfsiz_local = DWC_READ_REG32(&core_if->core_global_regs->hptxfsiz); +#ifdef CONFIG_USB_DWC_OTG_LPM + gr->glpmcfg_local = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg); +#endif + gr->gi2cctl_local = DWC_READ_REG32(&core_if->core_global_regs->gi2cctl); + gr->pcgcctl_local = DWC_READ_REG32(core_if->pcgcctl); + gr->gdfifocfg_local = + DWC_READ_REG32(&core_if->core_global_regs->gdfifocfg); + for (i = 0; i < MAX_EPS_CHANNELS; i++) { + gr->dtxfsiz_local[i] = + DWC_READ_REG32(&(core_if->core_global_regs->dtxfsiz[i])); + } + + DWC_DEBUGPL(DBG_ANY, "===========Backing Global registers==========\n"); + DWC_DEBUGPL(DBG_ANY, "Backed up gotgctl = %08x\n", gr->gotgctl_local); + DWC_DEBUGPL(DBG_ANY, "Backed up gintmsk = %08x\n", gr->gintmsk_local); + DWC_DEBUGPL(DBG_ANY, "Backed up gahbcfg = %08x\n", gr->gahbcfg_local); + DWC_DEBUGPL(DBG_ANY, "Backed up gusbcfg = %08x\n", gr->gusbcfg_local); + DWC_DEBUGPL(DBG_ANY, "Backed up grxfsiz = %08x\n", gr->grxfsiz_local); + DWC_DEBUGPL(DBG_ANY, "Backed up gnptxfsiz = %08x\n", + gr->gnptxfsiz_local); + DWC_DEBUGPL(DBG_ANY, "Backed up hptxfsiz = %08x\n", + gr->hptxfsiz_local); +#ifdef CONFIG_USB_DWC_OTG_LPM + DWC_DEBUGPL(DBG_ANY, "Backed up glpmcfg = %08x\n", gr->glpmcfg_local); +#endif + DWC_DEBUGPL(DBG_ANY, "Backed up gi2cctl = %08x\n", gr->gi2cctl_local); + DWC_DEBUGPL(DBG_ANY, "Backed up pcgcctl = %08x\n", gr->pcgcctl_local); + DWC_DEBUGPL(DBG_ANY,"Backed up gdfifocfg = %08x\n",gr->gdfifocfg_local); + + return 0; +} + +/** Saves GINTMSK register before setting the msk bits. */ +int dwc_otg_save_gintmsk_reg(dwc_otg_core_if_t * core_if) +{ + struct dwc_otg_global_regs_backup *gr; + + gr = core_if->gr_backup; + if (!gr) { + gr = DWC_ALLOC(sizeof(*gr)); + if (!gr) { + return -DWC_E_NO_MEMORY; + } + core_if->gr_backup = gr; + } + + gr->gintmsk_local = DWC_READ_REG32(&core_if->core_global_regs->gintmsk); + + DWC_DEBUGPL(DBG_ANY,"=============Backing GINTMSK registers============\n"); + DWC_DEBUGPL(DBG_ANY, "Backed up gintmsk = %08x\n", gr->gintmsk_local); + + return 0; +} + +int dwc_otg_save_dev_regs(dwc_otg_core_if_t * core_if) +{ + struct dwc_otg_dev_regs_backup *dr; + int i; + + dr = core_if->dr_backup; + if (!dr) { + dr = DWC_ALLOC(sizeof(*dr)); + if (!dr) { + return -DWC_E_NO_MEMORY; + } + core_if->dr_backup = dr; + } + + dr->dcfg = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dcfg); + dr->dctl = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dctl); + dr->daintmsk = + DWC_READ_REG32(&core_if->dev_if->dev_global_regs->daintmsk); + dr->diepmsk = + DWC_READ_REG32(&core_if->dev_if->dev_global_regs->diepmsk); + dr->doepmsk = + DWC_READ_REG32(&core_if->dev_if->dev_global_regs->doepmsk); + + for (i = 0; i < core_if->dev_if->num_in_eps; ++i) { + dr->diepctl[i] = + DWC_READ_REG32(&core_if->dev_if->in_ep_regs[i]->diepctl); + dr->dieptsiz[i] = + DWC_READ_REG32(&core_if->dev_if->in_ep_regs[i]->dieptsiz); + dr->diepdma[i] = + DWC_READ_REG32(&core_if->dev_if->in_ep_regs[i]->diepdma); + } + + DWC_DEBUGPL(DBG_ANY, + "=============Backing Host registers==============\n"); + DWC_DEBUGPL(DBG_ANY, "Backed up dcfg = %08x\n", dr->dcfg); + DWC_DEBUGPL(DBG_ANY, "Backed up dctl = %08x\n", dr->dctl); + DWC_DEBUGPL(DBG_ANY, "Backed up daintmsk = %08x\n", + dr->daintmsk); + DWC_DEBUGPL(DBG_ANY, "Backed up diepmsk = %08x\n", dr->diepmsk); + DWC_DEBUGPL(DBG_ANY, "Backed up doepmsk = %08x\n", dr->doepmsk); + for (i = 0; i < core_if->dev_if->num_in_eps; ++i) { + DWC_DEBUGPL(DBG_ANY, "Backed up diepctl[%d] = %08x\n", i, + dr->diepctl[i]); + DWC_DEBUGPL(DBG_ANY, "Backed up dieptsiz[%d] = %08x\n", + i, dr->dieptsiz[i]); + DWC_DEBUGPL(DBG_ANY, "Backed up diepdma[%d] = %08x\n", i, + dr->diepdma[i]); + } + + return 0; +} + +int dwc_otg_save_host_regs(dwc_otg_core_if_t * core_if) +{ + struct dwc_otg_host_regs_backup *hr; + int i; + + hr = core_if->hr_backup; + if (!hr) { + hr = DWC_ALLOC(sizeof(*hr)); + if (!hr) { + return -DWC_E_NO_MEMORY; + } + core_if->hr_backup = hr; + } + + hr->hcfg_local = + DWC_READ_REG32(&core_if->host_if->host_global_regs->hcfg); + hr->haintmsk_local = + DWC_READ_REG32(&core_if->host_if->host_global_regs->haintmsk); + for (i = 0; i < dwc_otg_get_param_host_channels(core_if); ++i) { + hr->hcintmsk_local[i] = + DWC_READ_REG32(&core_if->host_if->hc_regs[i]->hcintmsk); + } + hr->hprt0_local = DWC_READ_REG32(core_if->host_if->hprt0); + hr->hfir_local = + DWC_READ_REG32(&core_if->host_if->host_global_regs->hfir); + + DWC_DEBUGPL(DBG_ANY, + "=============Backing Host registers===============\n"); + DWC_DEBUGPL(DBG_ANY, "Backed up hcfg = %08x\n", + hr->hcfg_local); + DWC_DEBUGPL(DBG_ANY, "Backed up haintmsk = %08x\n", hr->haintmsk_local); + for (i = 0; i < dwc_otg_get_param_host_channels(core_if); ++i) { + DWC_DEBUGPL(DBG_ANY, "Backed up hcintmsk[%02d]=%08x\n", i, + hr->hcintmsk_local[i]); + } + DWC_DEBUGPL(DBG_ANY, "Backed up hprt0 = %08x\n", + hr->hprt0_local); + DWC_DEBUGPL(DBG_ANY, "Backed up hfir = %08x\n", + hr->hfir_local); + + return 0; +} + +int dwc_otg_restore_global_regs(dwc_otg_core_if_t *core_if) +{ + struct dwc_otg_global_regs_backup *gr; + int i; + + gr = core_if->gr_backup; + if (!gr) { + return -DWC_E_INVALID; + } + + DWC_WRITE_REG32(&core_if->core_global_regs->gotgctl, gr->gotgctl_local); + DWC_WRITE_REG32(&core_if->core_global_regs->gintmsk, gr->gintmsk_local); + DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg, gr->gusbcfg_local); + DWC_WRITE_REG32(&core_if->core_global_regs->gahbcfg, gr->gahbcfg_local); + DWC_WRITE_REG32(&core_if->core_global_regs->grxfsiz, gr->grxfsiz_local); + DWC_WRITE_REG32(&core_if->core_global_regs->gnptxfsiz, + gr->gnptxfsiz_local); + DWC_WRITE_REG32(&core_if->core_global_regs->hptxfsiz, + gr->hptxfsiz_local); + DWC_WRITE_REG32(&core_if->core_global_regs->gdfifocfg, + gr->gdfifocfg_local); + for (i = 0; i < MAX_EPS_CHANNELS; i++) { + DWC_WRITE_REG32(&core_if->core_global_regs->dtxfsiz[i], + gr->dtxfsiz_local[i]); + } + + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, 0xFFFFFFFF); + DWC_WRITE_REG32(core_if->host_if->hprt0, 0x0000100A); + DWC_WRITE_REG32(&core_if->core_global_regs->gahbcfg, + (gr->gahbcfg_local)); + return 0; +} + +int dwc_otg_restore_dev_regs(dwc_otg_core_if_t * core_if, int rem_wakeup) +{ + struct dwc_otg_dev_regs_backup *dr; + int i; + + dr = core_if->dr_backup; + + if (!dr) { + return -DWC_E_INVALID; + } + + if (!rem_wakeup) { + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dctl, + dr->dctl); + } + + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->daintmsk, dr->daintmsk); + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->diepmsk, dr->diepmsk); + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->doepmsk, dr->doepmsk); + + for (i = 0; i < core_if->dev_if->num_in_eps; ++i) { + DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[i]->dieptsiz, dr->dieptsiz[i]); + DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[i]->diepdma, dr->diepdma[i]); + DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[i]->diepctl, dr->diepctl[i]); + } + + return 0; +} + +int dwc_otg_restore_host_regs(dwc_otg_core_if_t * core_if, int reset) +{ + struct dwc_otg_host_regs_backup *hr; + int i; + hr = core_if->hr_backup; + + if (!hr) { + return -DWC_E_INVALID; + } + + DWC_WRITE_REG32(&core_if->host_if->host_global_regs->hcfg, hr->hcfg_local); + //if (!reset) + //{ + // DWC_WRITE_REG32(&core_if->host_if->host_global_regs->hfir, hr->hfir_local); + //} + + DWC_WRITE_REG32(&core_if->host_if->host_global_regs->haintmsk, + hr->haintmsk_local); + for (i = 0; i < dwc_otg_get_param_host_channels(core_if); ++i) { + DWC_WRITE_REG32(&core_if->host_if->hc_regs[i]->hcintmsk, + hr->hcintmsk_local[i]); + } + + return 0; +} + +int restore_lpm_i2c_regs(dwc_otg_core_if_t * core_if) +{ + struct dwc_otg_global_regs_backup *gr; + + gr = core_if->gr_backup; + + /* Restore values for LPM and I2C */ +#ifdef CONFIG_USB_DWC_OTG_LPM + DWC_WRITE_REG32(&core_if->core_global_regs->glpmcfg, gr->glpmcfg_local); +#endif + DWC_WRITE_REG32(&core_if->core_global_regs->gi2cctl, gr->gi2cctl_local); + + return 0; +} + +int restore_essential_regs(dwc_otg_core_if_t * core_if, int rmode, int is_host) +{ + struct dwc_otg_global_regs_backup *gr; + pcgcctl_data_t pcgcctl = {.d32 = 0 }; + gahbcfg_data_t gahbcfg = {.d32 = 0 }; + gusbcfg_data_t gusbcfg = {.d32 = 0 }; + gintmsk_data_t gintmsk = {.d32 = 0 }; + + /* Restore LPM and I2C registers */ + restore_lpm_i2c_regs(core_if); + + /* Set PCGCCTL to 0 */ + DWC_WRITE_REG32(core_if->pcgcctl, 0x00000000); + + gr = core_if->gr_backup; + /* Load restore values for [31:14] bits */ + DWC_WRITE_REG32(core_if->pcgcctl, + ((gr->pcgcctl_local & 0xffffc000) | 0x00020000)); + + /* Umnask global Interrupt in GAHBCFG and restore it */ + gahbcfg.d32 = gr->gahbcfg_local; + gahbcfg.b.glblintrmsk = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gahbcfg, gahbcfg.d32); + + /* Clear all pending interupts */ + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, 0xFFFFFFFF); + + /* Unmask restore done interrupt */ + gintmsk.b.restoredone = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gintmsk, gintmsk.d32); + + /* Restore GUSBCFG and HCFG/DCFG */ + gusbcfg.d32 = core_if->gr_backup->gusbcfg_local; + DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg, gusbcfg.d32); + + if (is_host) { + hcfg_data_t hcfg = {.d32 = 0 }; + hcfg.d32 = core_if->hr_backup->hcfg_local; + DWC_WRITE_REG32(&core_if->host_if->host_global_regs->hcfg, + hcfg.d32); + + /* Load restore values for [31:14] bits */ + pcgcctl.d32 = gr->pcgcctl_local & 0xffffc000; + pcgcctl.d32 = gr->pcgcctl_local | 0x00020000; + + if (rmode) + pcgcctl.b.restoremode = 1; + DWC_WRITE_REG32(core_if->pcgcctl, pcgcctl.d32); + dwc_udelay(10); + + /* Load restore values for [31:14] bits and set EssRegRestored bit */ + pcgcctl.d32 = gr->pcgcctl_local | 0xffffc000; + pcgcctl.d32 = gr->pcgcctl_local & 0xffffc000; + pcgcctl.b.ess_reg_restored = 1; + if (rmode) + pcgcctl.b.restoremode = 1; + DWC_WRITE_REG32(core_if->pcgcctl, pcgcctl.d32); + } else { + dcfg_data_t dcfg = {.d32 = 0 }; + dcfg.d32 = core_if->dr_backup->dcfg; + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dcfg, dcfg.d32); + + /* Load restore values for [31:14] bits */ + pcgcctl.d32 = gr->pcgcctl_local & 0xffffc000; + pcgcctl.d32 = gr->pcgcctl_local | 0x00020000; + if (!rmode) { + pcgcctl.d32 |= 0x208; + } + DWC_WRITE_REG32(core_if->pcgcctl, pcgcctl.d32); + dwc_udelay(10); + + /* Load restore values for [31:14] bits */ + pcgcctl.d32 = gr->pcgcctl_local & 0xffffc000; + pcgcctl.d32 = gr->pcgcctl_local | 0x00020000; + pcgcctl.b.ess_reg_restored = 1; + if (!rmode) + pcgcctl.d32 |= 0x208; + DWC_WRITE_REG32(core_if->pcgcctl, pcgcctl.d32); + } + + return 0; +} + +/** + * Initializes the FSLSPClkSel field of the HCFG register depending on the PHY + * type. + */ +static void init_fslspclksel(dwc_otg_core_if_t * core_if) +{ + uint32_t val; + hcfg_data_t hcfg; + + if (((core_if->hwcfg2.b.hs_phy_type == 2) && + (core_if->hwcfg2.b.fs_phy_type == 1) && + (core_if->core_params->ulpi_fs_ls)) || + (core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS)) { + /* Full speed PHY */ + val = DWC_HCFG_48_MHZ; + } else { + /* High speed PHY running at full speed or high speed */ + val = DWC_HCFG_30_60_MHZ; + } + + DWC_DEBUGPL(DBG_CIL, "Initializing HCFG.FSLSPClkSel to 0x%1x\n", val); + hcfg.d32 = DWC_READ_REG32(&core_if->host_if->host_global_regs->hcfg); + hcfg.b.fslspclksel = val; + DWC_WRITE_REG32(&core_if->host_if->host_global_regs->hcfg, hcfg.d32); +} + +/** + * Initializes the DevSpd field of the DCFG register depending on the PHY type + * and the enumeration speed of the device. + */ +static void init_devspd(dwc_otg_core_if_t * core_if) +{ + uint32_t val; + dcfg_data_t dcfg; + + if (((core_if->hwcfg2.b.hs_phy_type == 2) && + (core_if->hwcfg2.b.fs_phy_type == 1) && + (core_if->core_params->ulpi_fs_ls)) || + (core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS)) { + /* Full speed PHY */ + val = 0x3; + } else if (core_if->core_params->speed == DWC_SPEED_PARAM_FULL) { + /* High speed PHY running at full speed */ + val = 0x1; + } else { + /* High speed PHY running at high speed */ + val = 0x0; + } + + DWC_DEBUGPL(DBG_CIL, "Initializing DCFG.DevSpd to 0x%1x\n", val); + + dcfg.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dcfg); + dcfg.b.devspd = val; + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dcfg, dcfg.d32); +} + +/** + * This function calculates the number of IN EPS + * using GHWCFG1 and GHWCFG2 registers values + * + * @param core_if Programming view of the DWC_otg controller + */ +static uint32_t calc_num_in_eps(dwc_otg_core_if_t * core_if) +{ + uint32_t num_in_eps = 0; + uint32_t num_eps = core_if->hwcfg2.b.num_dev_ep; + uint32_t hwcfg1 = core_if->hwcfg1.d32 >> 3; + uint32_t num_tx_fifos = core_if->hwcfg4.b.num_in_eps; + int i; + + for (i = 0; i < num_eps; ++i) { + if (!(hwcfg1 & 0x1)) + num_in_eps++; + + hwcfg1 >>= 2; + } + + if (core_if->hwcfg4.b.ded_fifo_en) { + num_in_eps = + (num_in_eps > num_tx_fifos) ? num_tx_fifos : num_in_eps; + } + + return num_in_eps; +} + +/** + * This function calculates the number of OUT EPS + * using GHWCFG1 and GHWCFG2 registers values + * + * @param core_if Programming view of the DWC_otg controller + */ +static uint32_t calc_num_out_eps(dwc_otg_core_if_t * core_if) +{ + uint32_t num_out_eps = 0; + uint32_t num_eps = core_if->hwcfg2.b.num_dev_ep; + uint32_t hwcfg1 = core_if->hwcfg1.d32 >> 2; + int i; + + for (i = 0; i < num_eps; ++i) { + if (!(hwcfg1 & 0x1)) + num_out_eps++; + + hwcfg1 >>= 2; + } + return num_out_eps; +} + +/** + * This function initializes the DWC_otg controller registers and + * prepares the core for device mode or host mode operation. + * + * @param core_if Programming view of the DWC_otg controller + * + */ +void dwc_otg_core_init(dwc_otg_core_if_t * core_if) +{ + int i = 0; + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + gahbcfg_data_t ahbcfg = {.d32 = 0 }; + gusbcfg_data_t usbcfg = {.d32 = 0 }; + gi2cctl_data_t i2cctl = {.d32 = 0 }; + + DWC_DEBUGPL(DBG_CILV, "dwc_otg_core_init(%p) regs at %p\n", + core_if, global_regs); + + /* Common Initialization */ + usbcfg.d32 = DWC_READ_REG32(&global_regs->gusbcfg); + + /* Program the ULPI External VBUS bit if needed */ + usbcfg.b.ulpi_ext_vbus_drv = + (core_if->core_params->phy_ulpi_ext_vbus == + DWC_PHY_ULPI_EXTERNAL_VBUS) ? 1 : 0; + + /* Set external TS Dline pulsing */ + usbcfg.b.term_sel_dl_pulse = + (core_if->core_params->ts_dline == 1) ? 1 : 0; + DWC_WRITE_REG32(&global_regs->gusbcfg, usbcfg.d32); + + /* Reset the Controller */ + dwc_otg_core_reset(core_if); + + core_if->adp_enable = core_if->core_params->adp_supp_enable; + core_if->power_down = core_if->core_params->power_down; + core_if->otg_sts = 0; + + /* Initialize parameters from Hardware configuration registers. */ + dev_if->num_in_eps = calc_num_in_eps(core_if); + dev_if->num_out_eps = calc_num_out_eps(core_if); + + DWC_DEBUGPL(DBG_CIL, "num_dev_perio_in_ep=%d\n", + core_if->hwcfg4.b.num_dev_perio_in_ep); + + for (i = 0; i < core_if->hwcfg4.b.num_dev_perio_in_ep; i++) { + dev_if->perio_tx_fifo_size[i] = + DWC_READ_REG32(&global_regs->dtxfsiz[i]) >> 16; + DWC_DEBUGPL(DBG_CIL, "Periodic Tx FIFO SZ #%d=0x%0x\n", + i, dev_if->perio_tx_fifo_size[i]); + } + + for (i = 0; i < core_if->hwcfg4.b.num_in_eps; i++) { + dev_if->tx_fifo_size[i] = + DWC_READ_REG32(&global_regs->dtxfsiz[i]) >> 16; + DWC_DEBUGPL(DBG_CIL, "Tx FIFO SZ #%d=0x%0x\n", + i, dev_if->tx_fifo_size[i]); + } + + core_if->total_fifo_size = core_if->hwcfg3.b.dfifo_depth; + core_if->rx_fifo_size = DWC_READ_REG32(&global_regs->grxfsiz); + core_if->nperio_tx_fifo_size = + DWC_READ_REG32(&global_regs->gnptxfsiz) >> 16; + + DWC_DEBUGPL(DBG_CIL, "Total FIFO SZ=%d\n", core_if->total_fifo_size); + DWC_DEBUGPL(DBG_CIL, "Rx FIFO SZ=%d\n", core_if->rx_fifo_size); + DWC_DEBUGPL(DBG_CIL, "NP Tx FIFO SZ=%d\n", + core_if->nperio_tx_fifo_size); + + /* This programming sequence needs to happen in FS mode before any other + * programming occurs */ + if ((core_if->core_params->speed == DWC_SPEED_PARAM_FULL) && + (core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS)) { + /* If FS mode with FS PHY */ + + /* core_init() is now called on every switch so only call the + * following for the first time through. */ + if (!core_if->phy_init_done) { + core_if->phy_init_done = 1; + DWC_DEBUGPL(DBG_CIL, "FS_PHY detected\n"); + usbcfg.d32 = DWC_READ_REG32(&global_regs->gusbcfg); + usbcfg.b.physel = 1; + DWC_WRITE_REG32(&global_regs->gusbcfg, usbcfg.d32); + + /* Reset after a PHY select */ + dwc_otg_core_reset(core_if); + } + + /* Program DCFG.DevSpd or HCFG.FSLSPclkSel to 48Mhz in FS. Also + * do this on HNP Dev/Host mode switches (done in dev_init and + * host_init). */ + if (dwc_otg_is_host_mode(core_if)) { + init_fslspclksel(core_if); + } else { + init_devspd(core_if); + } + + if (core_if->core_params->i2c_enable) { + DWC_DEBUGPL(DBG_CIL, "FS_PHY Enabling I2c\n"); + /* Program GUSBCFG.OtgUtmifsSel to I2C */ + usbcfg.d32 = DWC_READ_REG32(&global_regs->gusbcfg); + usbcfg.b.otgutmifssel = 1; + DWC_WRITE_REG32(&global_regs->gusbcfg, usbcfg.d32); + + /* Program GI2CCTL.I2CEn */ + i2cctl.d32 = DWC_READ_REG32(&global_regs->gi2cctl); + i2cctl.b.i2cdevaddr = 1; + i2cctl.b.i2cen = 0; + DWC_WRITE_REG32(&global_regs->gi2cctl, i2cctl.d32); + i2cctl.b.i2cen = 1; + DWC_WRITE_REG32(&global_regs->gi2cctl, i2cctl.d32); + } + + } /* endif speed == DWC_SPEED_PARAM_FULL */ + else { + /* High speed PHY. */ + if (!core_if->phy_init_done) { + core_if->phy_init_done = 1; + /* HS PHY parameters. These parameters are preserved + * during soft reset so only program the first time. Do + * a soft reset immediately after setting phyif. */ + + if (core_if->core_params->phy_type == 2) { + /* ULPI interface */ + usbcfg.b.ulpi_utmi_sel = 1; + usbcfg.b.phyif = 0; + usbcfg.b.ddrsel = + core_if->core_params->phy_ulpi_ddr; + } else if (core_if->core_params->phy_type == 1) { + /* UTMI+ interface */ + usbcfg.b.ulpi_utmi_sel = 0; + if (core_if->core_params->phy_utmi_width == 16) { + usbcfg.b.phyif = 1; + + } else { + usbcfg.b.phyif = 0; + } + } else { + DWC_ERROR("FS PHY TYPE\n"); + } + DWC_WRITE_REG32(&global_regs->gusbcfg, usbcfg.d32); + /* Reset after setting the PHY parameters */ + dwc_otg_core_reset(core_if); + } + } + + if ((core_if->hwcfg2.b.hs_phy_type == 2) && + (core_if->hwcfg2.b.fs_phy_type == 1) && + (core_if->core_params->ulpi_fs_ls)) { + DWC_DEBUGPL(DBG_CIL, "Setting ULPI FSLS\n"); + usbcfg.d32 = DWC_READ_REG32(&global_regs->gusbcfg); + usbcfg.b.ulpi_fsls = 1; + usbcfg.b.ulpi_clk_sus_m = 1; + DWC_WRITE_REG32(&global_regs->gusbcfg, usbcfg.d32); + } else { + usbcfg.d32 = DWC_READ_REG32(&global_regs->gusbcfg); + usbcfg.b.ulpi_fsls = 0; + usbcfg.b.ulpi_clk_sus_m = 0; + DWC_WRITE_REG32(&global_regs->gusbcfg, usbcfg.d32); + } + + /* Program the GAHBCFG Register. */ + switch (core_if->hwcfg2.b.architecture) { + + case DWC_SLAVE_ONLY_ARCH: + DWC_DEBUGPL(DBG_CIL, "Slave Only Mode\n"); + ahbcfg.b.nptxfemplvl_txfemplvl = + DWC_GAHBCFG_TXFEMPTYLVL_HALFEMPTY; + ahbcfg.b.ptxfemplvl = DWC_GAHBCFG_TXFEMPTYLVL_HALFEMPTY; + core_if->dma_enable = 0; + core_if->dma_desc_enable = 0; + break; + + case DWC_EXT_DMA_ARCH: + DWC_DEBUGPL(DBG_CIL, "External DMA Mode\n"); + { + uint8_t brst_sz = core_if->core_params->dma_burst_size; + ahbcfg.b.hburstlen = 0; + while (brst_sz > 1) { + ahbcfg.b.hburstlen++; + brst_sz >>= 1; + } + } + core_if->dma_enable = (core_if->core_params->dma_enable != 0); + core_if->dma_desc_enable = + (core_if->core_params->dma_desc_enable != 0); + break; + + case DWC_INT_DMA_ARCH: + DWC_DEBUGPL(DBG_CIL, "Internal DMA Mode\n"); + /* Old value was DWC_GAHBCFG_INT_DMA_BURST_INCR - done for + Host mode ISOC in issue fix - vahrama */ + /* Broadcom had altered to (1<<3)|(0<<0) - WRESP=1, max 4 beats */ + ahbcfg.b.hburstlen = (1<<3)|(0<<0);//DWC_GAHBCFG_INT_DMA_BURST_INCR4; + core_if->dma_enable = (core_if->core_params->dma_enable != 0); + core_if->dma_desc_enable = + (core_if->core_params->dma_desc_enable != 0); + break; + + } + if (core_if->dma_enable) { + if (core_if->dma_desc_enable) { + DWC_PRINTF("Using Descriptor DMA mode\n"); + } else { + DWC_PRINTF("Using Buffer DMA mode\n"); + + } + } else { + DWC_PRINTF("Using Slave mode\n"); + core_if->dma_desc_enable = 0; + } + + if (core_if->core_params->ahb_single) { + ahbcfg.b.ahbsingle = 1; + } + + ahbcfg.b.dmaenable = core_if->dma_enable; + DWC_WRITE_REG32(&global_regs->gahbcfg, ahbcfg.d32); + + core_if->en_multiple_tx_fifo = core_if->hwcfg4.b.ded_fifo_en; + + core_if->pti_enh_enable = core_if->core_params->pti_enable != 0; + core_if->multiproc_int_enable = core_if->core_params->mpi_enable; + DWC_PRINTF("Periodic Transfer Interrupt Enhancement - %s\n", + ((core_if->pti_enh_enable) ? "enabled" : "disabled")); + DWC_PRINTF("Multiprocessor Interrupt Enhancement - %s\n", + ((core_if->multiproc_int_enable) ? "enabled" : "disabled")); + + /* + * Program the GUSBCFG register. + */ + usbcfg.d32 = DWC_READ_REG32(&global_regs->gusbcfg); + + switch (core_if->hwcfg2.b.op_mode) { + case DWC_MODE_HNP_SRP_CAPABLE: + usbcfg.b.hnpcap = (core_if->core_params->otg_cap == + DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE); + usbcfg.b.srpcap = (core_if->core_params->otg_cap != + DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE); + break; + + case DWC_MODE_SRP_ONLY_CAPABLE: + usbcfg.b.hnpcap = 0; + usbcfg.b.srpcap = (core_if->core_params->otg_cap != + DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE); + break; + + case DWC_MODE_NO_HNP_SRP_CAPABLE: + usbcfg.b.hnpcap = 0; + usbcfg.b.srpcap = 0; + break; + + case DWC_MODE_SRP_CAPABLE_DEVICE: + usbcfg.b.hnpcap = 0; + usbcfg.b.srpcap = (core_if->core_params->otg_cap != + DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE); + break; + + case DWC_MODE_NO_SRP_CAPABLE_DEVICE: + usbcfg.b.hnpcap = 0; + usbcfg.b.srpcap = 0; + break; + + case DWC_MODE_SRP_CAPABLE_HOST: + usbcfg.b.hnpcap = 0; + usbcfg.b.srpcap = (core_if->core_params->otg_cap != + DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE); + break; + + case DWC_MODE_NO_SRP_CAPABLE_HOST: + usbcfg.b.hnpcap = 0; + usbcfg.b.srpcap = 0; + break; + } + + DWC_WRITE_REG32(&global_regs->gusbcfg, usbcfg.d32); + +#ifdef CONFIG_USB_DWC_OTG_LPM + if (core_if->core_params->lpm_enable) { + glpmcfg_data_t lpmcfg = {.d32 = 0 }; + + /* To enable LPM support set lpm_cap_en bit */ + lpmcfg.b.lpm_cap_en = 1; + + /* Make AppL1Res ACK */ + lpmcfg.b.appl_resp = 1; + + /* Retry 3 times */ + lpmcfg.b.retry_count = 3; + + DWC_MODIFY_REG32(&core_if->core_global_regs->glpmcfg, + 0, lpmcfg.d32); + + } +#endif + if (core_if->core_params->ic_usb_cap) { + gusbcfg_data_t gusbcfg = {.d32 = 0 }; + gusbcfg.b.ic_usb_cap = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gusbcfg, + 0, gusbcfg.d32); + } + { + gotgctl_data_t gotgctl = {.d32 = 0 }; + gotgctl.b.otgver = core_if->core_params->otg_ver; + DWC_MODIFY_REG32(&core_if->core_global_regs->gotgctl, 0, + gotgctl.d32); + /* Set OTG version supported */ + core_if->otg_ver = core_if->core_params->otg_ver; + DWC_PRINTF("OTG VER PARAM: %d, OTG VER FLAG: %d\n", + core_if->core_params->otg_ver, core_if->otg_ver); + } + + + /* Enable common interrupts */ + dwc_otg_enable_common_interrupts(core_if); + + /* Do device or host intialization based on mode during PCD + * and HCD initialization */ + if (dwc_otg_is_host_mode(core_if)) { + DWC_DEBUGPL(DBG_ANY, "Host Mode\n"); + core_if->op_state = A_HOST; + } else { + DWC_DEBUGPL(DBG_ANY, "Device Mode\n"); + core_if->op_state = B_PERIPHERAL; +#ifdef DWC_DEVICE_ONLY + dwc_otg_core_dev_init(core_if); +#endif + } +} + +/** + * This function enables the Device mode interrupts. + * + * @param core_if Programming view of DWC_otg controller + */ +void dwc_otg_enable_device_interrupts(dwc_otg_core_if_t * core_if) +{ + gintmsk_data_t intr_mask = {.d32 = 0 }; + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + + DWC_DEBUGPL(DBG_CIL, "%s()\n", __func__); + + /* Disable all interrupts. */ + DWC_WRITE_REG32(&global_regs->gintmsk, 0); + + /* Clear any pending interrupts */ + DWC_WRITE_REG32(&global_regs->gintsts, 0xFFFFFFFF); + + /* Enable the common interrupts */ + dwc_otg_enable_common_interrupts(core_if); + + /* Enable interrupts */ + intr_mask.b.usbreset = 1; + intr_mask.b.enumdone = 1; + /* Disable Disconnect interrupt in Device mode */ + intr_mask.b.disconnect = 0; + + if (!core_if->multiproc_int_enable) { + intr_mask.b.inepintr = 1; + intr_mask.b.outepintr = 1; + } + + intr_mask.b.erlysuspend = 1; + + if (core_if->en_multiple_tx_fifo == 0) { + intr_mask.b.epmismatch = 1; + } + + //intr_mask.b.incomplisoout = 1; + intr_mask.b.incomplisoin = 1; + +/* Enable the ignore frame number for ISOC xfers - MAS */ +/* Disable to support high bandwith ISOC transfers - manukz */ +#if 0 +#ifdef DWC_UTE_PER_IO + if (core_if->dma_enable) { + if (core_if->dma_desc_enable) { + dctl_data_t dctl1 = {.d32 = 0 }; + dctl1.b.ifrmnum = 1; + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs-> + dctl, 0, dctl1.d32); + DWC_DEBUG("----Enabled Ignore frame number (0x%08x)", + DWC_READ_REG32(&core_if->dev_if-> + dev_global_regs->dctl)); + } + } +#endif +#endif +#ifdef DWC_EN_ISOC + if (core_if->dma_enable) { + if (core_if->dma_desc_enable == 0) { + if (core_if->pti_enh_enable) { + dctl_data_t dctl = {.d32 = 0 }; + dctl.b.ifrmnum = 1; + DWC_MODIFY_REG32(&core_if-> + dev_if->dev_global_regs->dctl, + 0, dctl.d32); + } else { + intr_mask.b.incomplisoin = 1; + intr_mask.b.incomplisoout = 1; + } + } + } else { + intr_mask.b.incomplisoin = 1; + intr_mask.b.incomplisoout = 1; + } +#endif /* DWC_EN_ISOC */ + + /** @todo NGS: Should this be a module parameter? */ +#ifdef USE_PERIODIC_EP + intr_mask.b.isooutdrop = 1; + intr_mask.b.eopframe = 1; + intr_mask.b.incomplisoin = 1; + intr_mask.b.incomplisoout = 1; +#endif + + DWC_MODIFY_REG32(&global_regs->gintmsk, intr_mask.d32, intr_mask.d32); + + DWC_DEBUGPL(DBG_CIL, "%s() gintmsk=%0x\n", __func__, + DWC_READ_REG32(&global_regs->gintmsk)); +} + +/** + * This function initializes the DWC_otg controller registers for + * device mode. + * + * @param core_if Programming view of DWC_otg controller + * + */ +void dwc_otg_core_dev_init(dwc_otg_core_if_t * core_if) +{ + int i; + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + dwc_otg_core_params_t *params = core_if->core_params; + dcfg_data_t dcfg = {.d32 = 0 }; + depctl_data_t diepctl = {.d32 = 0 }; + grstctl_t resetctl = {.d32 = 0 }; + uint32_t rx_fifo_size; + fifosize_data_t nptxfifosize; + fifosize_data_t txfifosize; + dthrctl_data_t dthrctl; + fifosize_data_t ptxfifosize; + uint16_t rxfsiz, nptxfsiz; + gdfifocfg_data_t gdfifocfg = {.d32 = 0 }; + hwcfg3_data_t hwcfg3 = {.d32 = 0 }; + + /* Restart the Phy Clock */ + DWC_WRITE_REG32(core_if->pcgcctl, 0); + + /* Device configuration register */ + init_devspd(core_if); + dcfg.d32 = DWC_READ_REG32(&dev_if->dev_global_regs->dcfg); + dcfg.b.descdma = (core_if->dma_desc_enable) ? 1 : 0; + dcfg.b.perfrint = DWC_DCFG_FRAME_INTERVAL_80; + /* Enable Device OUT NAK in case of DDMA mode*/ + if (core_if->core_params->dev_out_nak) { + dcfg.b.endevoutnak = 1; + } + + if (core_if->core_params->cont_on_bna) { + dctl_data_t dctl = {.d32 = 0 }; + dctl.b.encontonbna = 1; + DWC_MODIFY_REG32(&dev_if->dev_global_regs->dctl, 0, dctl.d32); + } + + + DWC_WRITE_REG32(&dev_if->dev_global_regs->dcfg, dcfg.d32); + + /* Configure data FIFO sizes */ + if (core_if->hwcfg2.b.dynamic_fifo && params->enable_dynamic_fifo) { + DWC_DEBUGPL(DBG_CIL, "Total FIFO Size=%d\n", + core_if->total_fifo_size); + DWC_DEBUGPL(DBG_CIL, "Rx FIFO Size=%d\n", + params->dev_rx_fifo_size); + DWC_DEBUGPL(DBG_CIL, "NP Tx FIFO Size=%d\n", + params->dev_nperio_tx_fifo_size); + + /* Rx FIFO */ + DWC_DEBUGPL(DBG_CIL, "initial grxfsiz=%08x\n", + DWC_READ_REG32(&global_regs->grxfsiz)); + +#ifdef DWC_UTE_CFI + core_if->pwron_rxfsiz = DWC_READ_REG32(&global_regs->grxfsiz); + core_if->init_rxfsiz = params->dev_rx_fifo_size; +#endif + rx_fifo_size = params->dev_rx_fifo_size; + DWC_WRITE_REG32(&global_regs->grxfsiz, rx_fifo_size); + + DWC_DEBUGPL(DBG_CIL, "new grxfsiz=%08x\n", + DWC_READ_REG32(&global_regs->grxfsiz)); + + /** Set Periodic Tx FIFO Mask all bits 0 */ + core_if->p_tx_msk = 0; + + /** Set Tx FIFO Mask all bits 0 */ + core_if->tx_msk = 0; + + if (core_if->en_multiple_tx_fifo == 0) { + /* Non-periodic Tx FIFO */ + DWC_DEBUGPL(DBG_CIL, "initial gnptxfsiz=%08x\n", + DWC_READ_REG32(&global_regs->gnptxfsiz)); + + nptxfifosize.b.depth = params->dev_nperio_tx_fifo_size; + nptxfifosize.b.startaddr = params->dev_rx_fifo_size; + + DWC_WRITE_REG32(&global_regs->gnptxfsiz, + nptxfifosize.d32); + + DWC_DEBUGPL(DBG_CIL, "new gnptxfsiz=%08x\n", + DWC_READ_REG32(&global_regs->gnptxfsiz)); + + /**@todo NGS: Fix Periodic FIFO Sizing! */ + /* + * Periodic Tx FIFOs These FIFOs are numbered from 1 to 15. + * Indexes of the FIFO size module parameters in the + * dev_perio_tx_fifo_size array and the FIFO size registers in + * the dptxfsiz array run from 0 to 14. + */ + /** @todo Finish debug of this */ + ptxfifosize.b.startaddr = + nptxfifosize.b.startaddr + nptxfifosize.b.depth; + for (i = 0; i < core_if->hwcfg4.b.num_dev_perio_in_ep; i++) { + ptxfifosize.b.depth = + params->dev_perio_tx_fifo_size[i]; + DWC_DEBUGPL(DBG_CIL, + "initial dtxfsiz[%d]=%08x\n", i, + DWC_READ_REG32(&global_regs->dtxfsiz + [i])); + DWC_WRITE_REG32(&global_regs->dtxfsiz[i], + ptxfifosize.d32); + DWC_DEBUGPL(DBG_CIL, "new dtxfsiz[%d]=%08x\n", + i, + DWC_READ_REG32(&global_regs->dtxfsiz + [i])); + ptxfifosize.b.startaddr += ptxfifosize.b.depth; + } + } else { + /* + * Tx FIFOs These FIFOs are numbered from 1 to 15. + * Indexes of the FIFO size module parameters in the + * dev_tx_fifo_size array and the FIFO size registers in + * the dtxfsiz array run from 0 to 14. + */ + + /* Non-periodic Tx FIFO */ + DWC_DEBUGPL(DBG_CIL, "initial gnptxfsiz=%08x\n", + DWC_READ_REG32(&global_regs->gnptxfsiz)); + +#ifdef DWC_UTE_CFI + core_if->pwron_gnptxfsiz = + (DWC_READ_REG32(&global_regs->gnptxfsiz) >> 16); + core_if->init_gnptxfsiz = + params->dev_nperio_tx_fifo_size; +#endif + nptxfifosize.b.depth = params->dev_nperio_tx_fifo_size; + nptxfifosize.b.startaddr = params->dev_rx_fifo_size; + + DWC_WRITE_REG32(&global_regs->gnptxfsiz, + nptxfifosize.d32); + + DWC_DEBUGPL(DBG_CIL, "new gnptxfsiz=%08x\n", + DWC_READ_REG32(&global_regs->gnptxfsiz)); + + txfifosize.b.startaddr = + nptxfifosize.b.startaddr + nptxfifosize.b.depth; + + for (i = 0; i < core_if->hwcfg4.b.num_in_eps; i++) { + + txfifosize.b.depth = + params->dev_tx_fifo_size[i]; + + DWC_DEBUGPL(DBG_CIL, + "initial dtxfsiz[%d]=%08x\n", + i, + DWC_READ_REG32(&global_regs->dtxfsiz + [i])); + +#ifdef DWC_UTE_CFI + core_if->pwron_txfsiz[i] = + (DWC_READ_REG32 + (&global_regs->dtxfsiz[i]) >> 16); + core_if->init_txfsiz[i] = + params->dev_tx_fifo_size[i]; +#endif + DWC_WRITE_REG32(&global_regs->dtxfsiz[i], + txfifosize.d32); + + DWC_DEBUGPL(DBG_CIL, + "new dtxfsiz[%d]=%08x\n", + i, + DWC_READ_REG32(&global_regs->dtxfsiz + [i])); + + txfifosize.b.startaddr += txfifosize.b.depth; + } + if (core_if->snpsid <= OTG_CORE_REV_2_94a) { + /* Calculating DFIFOCFG for Device mode to include RxFIFO and NPTXFIFO */ + gdfifocfg.d32 = DWC_READ_REG32(&global_regs->gdfifocfg); + hwcfg3.d32 = DWC_READ_REG32(&global_regs->ghwcfg3); + gdfifocfg.b.gdfifocfg = (DWC_READ_REG32(&global_regs->ghwcfg3) >> 16); + DWC_WRITE_REG32(&global_regs->gdfifocfg, gdfifocfg.d32); + rxfsiz = (DWC_READ_REG32(&global_regs->grxfsiz) & 0x0000ffff); + nptxfsiz = (DWC_READ_REG32(&global_regs->gnptxfsiz) >> 16); + gdfifocfg.b.epinfobase = rxfsiz + nptxfsiz; + DWC_WRITE_REG32(&global_regs->gdfifocfg, gdfifocfg.d32); + } + } + + /* Flush the FIFOs */ + dwc_otg_flush_tx_fifo(core_if, 0x10); /* all Tx FIFOs */ + dwc_otg_flush_rx_fifo(core_if); + + /* Flush the Learning Queue. */ + resetctl.b.intknqflsh = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->grstctl, resetctl.d32); + + if (!core_if->core_params->en_multiple_tx_fifo && core_if->dma_enable) { + core_if->start_predict = 0; + for (i = 0; i<= core_if->dev_if->num_in_eps; ++i) { + core_if->nextep_seq[i] = 0xff; // 0xff - EP not active + } + core_if->nextep_seq[0] = 0; + core_if->first_in_nextep_seq = 0; + diepctl.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[0]->diepctl); + diepctl.b.nextep = 0; + DWC_WRITE_REG32(&dev_if->in_ep_regs[0]->diepctl, diepctl.d32); + + /* Update IN Endpoint Mismatch Count by active IN NP EP count + 1 */ + dcfg.d32 = DWC_READ_REG32(&dev_if->dev_global_regs->dcfg); + dcfg.b.epmscnt = 2; + DWC_WRITE_REG32(&dev_if->dev_global_regs->dcfg, dcfg.d32); + + DWC_DEBUGPL(DBG_CILV,"%s first_in_nextep_seq= %2d; nextep_seq[]:\n", + __func__, core_if->first_in_nextep_seq); + for (i=0; i <= core_if->dev_if->num_in_eps; i++) { + DWC_DEBUGPL(DBG_CILV, "%2d ", core_if->nextep_seq[i]); + } + DWC_DEBUGPL(DBG_CILV,"\n"); + } + + /* Clear all pending Device Interrupts */ + /** @todo - if the condition needed to be checked + * or in any case all pending interrutps should be cleared? + */ + if (core_if->multiproc_int_enable) { + for (i = 0; i < core_if->dev_if->num_in_eps; ++i) { + DWC_WRITE_REG32(&dev_if-> + dev_global_regs->diepeachintmsk[i], 0); + } + } + + for (i = 0; i < core_if->dev_if->num_out_eps; ++i) { + DWC_WRITE_REG32(&dev_if-> + dev_global_regs->doepeachintmsk[i], 0); + } + + DWC_WRITE_REG32(&dev_if->dev_global_regs->deachint, 0xFFFFFFFF); + DWC_WRITE_REG32(&dev_if->dev_global_regs->deachintmsk, 0); + } else { + DWC_WRITE_REG32(&dev_if->dev_global_regs->diepmsk, 0); + DWC_WRITE_REG32(&dev_if->dev_global_regs->doepmsk, 0); + DWC_WRITE_REG32(&dev_if->dev_global_regs->daint, 0xFFFFFFFF); + DWC_WRITE_REG32(&dev_if->dev_global_regs->daintmsk, 0); + } + + for (i = 0; i <= dev_if->num_in_eps; i++) { + depctl_data_t depctl; + depctl.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[i]->diepctl); + if (depctl.b.epena) { + depctl.d32 = 0; + depctl.b.epdis = 1; + depctl.b.snak = 1; + } else { + depctl.d32 = 0; + } + + DWC_WRITE_REG32(&dev_if->in_ep_regs[i]->diepctl, depctl.d32); + + DWC_WRITE_REG32(&dev_if->in_ep_regs[i]->dieptsiz, 0); + DWC_WRITE_REG32(&dev_if->in_ep_regs[i]->diepdma, 0); + DWC_WRITE_REG32(&dev_if->in_ep_regs[i]->diepint, 0xFF); + } + + for (i = 0; i <= dev_if->num_out_eps; i++) { + depctl_data_t depctl; + depctl.d32 = DWC_READ_REG32(&dev_if->out_ep_regs[i]->doepctl); + if (depctl.b.epena) { + dctl_data_t dctl = {.d32 = 0 }; + gintmsk_data_t gintsts = {.d32 = 0 }; + doepint_data_t doepint = {.d32 = 0 }; + dctl.b.sgoutnak = 1; + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, 0, dctl.d32); + do { + dwc_udelay(10); + gintsts.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintsts); + } while (!gintsts.b.goutnakeff); + gintsts.d32 = 0; + gintsts.b.goutnakeff = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32); + + depctl.d32 = 0; + depctl.b.epdis = 1; + depctl.b.snak = 1; + DWC_WRITE_REG32(&core_if->dev_if->out_ep_regs[i]->doepctl, depctl.d32); + do { + dwc_udelay(10); + doepint.d32 = DWC_READ_REG32(&core_if->dev_if-> + out_ep_regs[i]->doepint); + } while (!doepint.b.epdisabled); + + doepint.b.epdisabled = 1; + DWC_WRITE_REG32(&core_if->dev_if->out_ep_regs[i]->doepint, doepint.d32); + + dctl.d32 = 0; + dctl.b.cgoutnak = 1; + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, 0, dctl.d32); + } else { + depctl.d32 = 0; + } + + DWC_WRITE_REG32(&dev_if->out_ep_regs[i]->doepctl, depctl.d32); + + DWC_WRITE_REG32(&dev_if->out_ep_regs[i]->doeptsiz, 0); + DWC_WRITE_REG32(&dev_if->out_ep_regs[i]->doepdma, 0); + DWC_WRITE_REG32(&dev_if->out_ep_regs[i]->doepint, 0xFF); + } + + if (core_if->en_multiple_tx_fifo && core_if->dma_enable) { + dev_if->non_iso_tx_thr_en = params->thr_ctl & 0x1; + dev_if->iso_tx_thr_en = (params->thr_ctl >> 1) & 0x1; + dev_if->rx_thr_en = (params->thr_ctl >> 2) & 0x1; + + dev_if->rx_thr_length = params->rx_thr_length; + dev_if->tx_thr_length = params->tx_thr_length; + + dev_if->setup_desc_index = 0; + + dthrctl.d32 = 0; + dthrctl.b.non_iso_thr_en = dev_if->non_iso_tx_thr_en; + dthrctl.b.iso_thr_en = dev_if->iso_tx_thr_en; + dthrctl.b.tx_thr_len = dev_if->tx_thr_length; + dthrctl.b.rx_thr_en = dev_if->rx_thr_en; + dthrctl.b.rx_thr_len = dev_if->rx_thr_length; + dthrctl.b.ahb_thr_ratio = params->ahb_thr_ratio; + + DWC_WRITE_REG32(&dev_if->dev_global_regs->dtknqr3_dthrctl, + dthrctl.d32); + + DWC_DEBUGPL(DBG_CIL, + "Non ISO Tx Thr - %d\nISO Tx Thr - %d\nRx Thr - %d\nTx Thr Len - %d\nRx Thr Len - %d\n", + dthrctl.b.non_iso_thr_en, dthrctl.b.iso_thr_en, + dthrctl.b.rx_thr_en, dthrctl.b.tx_thr_len, + dthrctl.b.rx_thr_len); + + } + + dwc_otg_enable_device_interrupts(core_if); + + { + diepmsk_data_t msk = {.d32 = 0 }; + msk.b.txfifoundrn = 1; + if (core_if->multiproc_int_enable) { + DWC_MODIFY_REG32(&dev_if->dev_global_regs-> + diepeachintmsk[0], msk.d32, msk.d32); + } else { + DWC_MODIFY_REG32(&dev_if->dev_global_regs->diepmsk, + msk.d32, msk.d32); + } + } + + if (core_if->multiproc_int_enable) { + /* Set NAK on Babble */ + dctl_data_t dctl = {.d32 = 0 }; + dctl.b.nakonbble = 1; + DWC_MODIFY_REG32(&dev_if->dev_global_regs->dctl, 0, dctl.d32); + } + + if (core_if->snpsid >= OTG_CORE_REV_2_94a) { + dctl_data_t dctl = {.d32 = 0 }; + dctl.d32 = DWC_READ_REG32(&dev_if->dev_global_regs->dctl); + dctl.b.sftdiscon = 0; + DWC_WRITE_REG32(&dev_if->dev_global_regs->dctl, dctl.d32); + } +} + +/** + * This function enables the Host mode interrupts. + * + * @param core_if Programming view of DWC_otg controller + */ +void dwc_otg_enable_host_interrupts(dwc_otg_core_if_t * core_if) +{ + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + gintmsk_data_t intr_mask = {.d32 = 0 }; + + DWC_DEBUGPL(DBG_CIL, "%s(%p)\n", __func__, core_if); + + /* Disable all interrupts. */ + DWC_WRITE_REG32(&global_regs->gintmsk, 0); + + /* Clear any pending interrupts. */ + DWC_WRITE_REG32(&global_regs->gintsts, 0xFFFFFFFF); + + /* Enable the common interrupts */ + dwc_otg_enable_common_interrupts(core_if); + + /* + * Enable host mode interrupts without disturbing common + * interrupts. + */ + + intr_mask.b.disconnect = 1; + intr_mask.b.portintr = 1; + intr_mask.b.hcintr = 1; + + DWC_MODIFY_REG32(&global_regs->gintmsk, intr_mask.d32, intr_mask.d32); +} + +/** + * This function disables the Host Mode interrupts. + * + * @param core_if Programming view of DWC_otg controller + */ +void dwc_otg_disable_host_interrupts(dwc_otg_core_if_t * core_if) +{ + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + gintmsk_data_t intr_mask = {.d32 = 0 }; + + DWC_DEBUGPL(DBG_CILV, "%s()\n", __func__); + + /* + * Disable host mode interrupts without disturbing common + * interrupts. + */ + intr_mask.b.sofintr = 1; + intr_mask.b.portintr = 1; + intr_mask.b.hcintr = 1; + intr_mask.b.ptxfempty = 1; + intr_mask.b.nptxfempty = 1; + + DWC_MODIFY_REG32(&global_regs->gintmsk, intr_mask.d32, 0); +} + +/** + * This function initializes the DWC_otg controller registers for + * host mode. + * + * This function flushes the Tx and Rx FIFOs and it flushes any entries in the + * request queues. Host channels are reset to ensure that they are ready for + * performing transfers. + * + * @param core_if Programming view of DWC_otg controller + * + */ +void dwc_otg_core_host_init(dwc_otg_core_if_t * core_if) +{ + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + dwc_otg_host_if_t *host_if = core_if->host_if; + dwc_otg_core_params_t *params = core_if->core_params; + hprt0_data_t hprt0 = {.d32 = 0 }; + fifosize_data_t nptxfifosize; + fifosize_data_t ptxfifosize; + uint16_t rxfsiz, nptxfsiz, hptxfsiz; + gdfifocfg_data_t gdfifocfg = {.d32 = 0 }; + int i; + hcchar_data_t hcchar; + hcfg_data_t hcfg; + hfir_data_t hfir; + dwc_otg_hc_regs_t *hc_regs; + int num_channels; + gotgctl_data_t gotgctl = {.d32 = 0 }; + + DWC_DEBUGPL(DBG_CILV, "%s(%p)\n", __func__, core_if); + + /* Restart the Phy Clock */ + DWC_WRITE_REG32(core_if->pcgcctl, 0); + + /* Initialize Host Configuration Register */ + init_fslspclksel(core_if); + if (core_if->core_params->speed == DWC_SPEED_PARAM_FULL) { + hcfg.d32 = DWC_READ_REG32(&host_if->host_global_regs->hcfg); + hcfg.b.fslssupp = 1; + DWC_WRITE_REG32(&host_if->host_global_regs->hcfg, hcfg.d32); + + } + + /* This bit allows dynamic reloading of the HFIR register + * during runtime. This bit needs to be programmed during + * initial configuration and its value must not be changed + * during runtime.*/ + if (core_if->core_params->reload_ctl == 1) { + hfir.d32 = DWC_READ_REG32(&host_if->host_global_regs->hfir); + hfir.b.hfirrldctrl = 1; + DWC_WRITE_REG32(&host_if->host_global_regs->hfir, hfir.d32); + } + + if (core_if->core_params->dma_desc_enable) { + uint8_t op_mode = core_if->hwcfg2.b.op_mode; + if (! + (core_if->hwcfg4.b.desc_dma + && (core_if->snpsid >= OTG_CORE_REV_2_90a) + && ((op_mode == DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG) + || (op_mode == DWC_HWCFG2_OP_MODE_SRP_ONLY_CAPABLE_OTG) + || (op_mode == + DWC_HWCFG2_OP_MODE_NO_HNP_SRP_CAPABLE_OTG) + || (op_mode == DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST) + || (op_mode == + DWC_HWCFG2_OP_MODE_NO_SRP_CAPABLE_HOST)))) { + + DWC_ERROR("Host can't operate in Descriptor DMA mode.\n" + "Either core version is below 2.90a or " + "GHWCFG2, GHWCFG4 registers' values do not allow Descriptor DMA in host mode.\n" + "To run the driver in Buffer DMA host mode set dma_desc_enable " + "module parameter to 0.\n"); + return; + } + hcfg.d32 = DWC_READ_REG32(&host_if->host_global_regs->hcfg); + hcfg.b.descdma = 1; + DWC_WRITE_REG32(&host_if->host_global_regs->hcfg, hcfg.d32); + } + + /* Configure data FIFO sizes */ + if (core_if->hwcfg2.b.dynamic_fifo && params->enable_dynamic_fifo) { + DWC_DEBUGPL(DBG_CIL, "Total FIFO Size=%d\n", + core_if->total_fifo_size); + DWC_DEBUGPL(DBG_CIL, "Rx FIFO Size=%d\n", + params->host_rx_fifo_size); + DWC_DEBUGPL(DBG_CIL, "NP Tx FIFO Size=%d\n", + params->host_nperio_tx_fifo_size); + DWC_DEBUGPL(DBG_CIL, "P Tx FIFO Size=%d\n", + params->host_perio_tx_fifo_size); + + /* Rx FIFO */ + DWC_DEBUGPL(DBG_CIL, "initial grxfsiz=%08x\n", + DWC_READ_REG32(&global_regs->grxfsiz)); + DWC_WRITE_REG32(&global_regs->grxfsiz, + params->host_rx_fifo_size); + DWC_DEBUGPL(DBG_CIL, "new grxfsiz=%08x\n", + DWC_READ_REG32(&global_regs->grxfsiz)); + + /* Non-periodic Tx FIFO */ + DWC_DEBUGPL(DBG_CIL, "initial gnptxfsiz=%08x\n", + DWC_READ_REG32(&global_regs->gnptxfsiz)); + nptxfifosize.b.depth = params->host_nperio_tx_fifo_size; + nptxfifosize.b.startaddr = params->host_rx_fifo_size; + DWC_WRITE_REG32(&global_regs->gnptxfsiz, nptxfifosize.d32); + DWC_DEBUGPL(DBG_CIL, "new gnptxfsiz=%08x\n", + DWC_READ_REG32(&global_regs->gnptxfsiz)); + + /* Periodic Tx FIFO */ + DWC_DEBUGPL(DBG_CIL, "initial hptxfsiz=%08x\n", + DWC_READ_REG32(&global_regs->hptxfsiz)); + ptxfifosize.b.depth = params->host_perio_tx_fifo_size; + ptxfifosize.b.startaddr = + nptxfifosize.b.startaddr + nptxfifosize.b.depth; + DWC_WRITE_REG32(&global_regs->hptxfsiz, ptxfifosize.d32); + DWC_DEBUGPL(DBG_CIL, "new hptxfsiz=%08x\n", + DWC_READ_REG32(&global_regs->hptxfsiz)); + + if (core_if->en_multiple_tx_fifo + && core_if->snpsid <= OTG_CORE_REV_2_94a) { + /* Global DFIFOCFG calculation for Host mode - include RxFIFO, NPTXFIFO and HPTXFIFO */ + gdfifocfg.d32 = DWC_READ_REG32(&global_regs->gdfifocfg); + rxfsiz = (DWC_READ_REG32(&global_regs->grxfsiz) & 0x0000ffff); + nptxfsiz = (DWC_READ_REG32(&global_regs->gnptxfsiz) >> 16); + hptxfsiz = (DWC_READ_REG32(&global_regs->hptxfsiz) >> 16); + gdfifocfg.b.epinfobase = rxfsiz + nptxfsiz + hptxfsiz; + DWC_WRITE_REG32(&global_regs->gdfifocfg, gdfifocfg.d32); + } + } + + /* TODO - check this */ + /* Clear Host Set HNP Enable in the OTG Control Register */ + gotgctl.b.hstsethnpen = 1; + DWC_MODIFY_REG32(&global_regs->gotgctl, gotgctl.d32, 0); + /* Make sure the FIFOs are flushed. */ + dwc_otg_flush_tx_fifo(core_if, 0x10 /* all TX FIFOs */ ); + dwc_otg_flush_rx_fifo(core_if); + + /* Clear Host Set HNP Enable in the OTG Control Register */ + gotgctl.b.hstsethnpen = 1; + DWC_MODIFY_REG32(&global_regs->gotgctl, gotgctl.d32, 0); + + if (!core_if->core_params->dma_desc_enable) { + /* Flush out any leftover queued requests. */ + num_channels = core_if->core_params->host_channels; + + for (i = 0; i < num_channels; i++) { + hc_regs = core_if->host_if->hc_regs[i]; + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + hcchar.b.chen = 0; + hcchar.b.chdis = 1; + hcchar.b.epdir = 0; + DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32); + } + + /* Halt all channels to put them into a known state. */ + for (i = 0; i < num_channels; i++) { + int count = 0; + hc_regs = core_if->host_if->hc_regs[i]; + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + hcchar.b.chen = 1; + hcchar.b.chdis = 1; + hcchar.b.epdir = 0; + DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32); + DWC_DEBUGPL(DBG_HCDV, "%s: Halt channel %d regs %p\n", __func__, i, hc_regs); + do { + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + if (++count > 1000) { + DWC_ERROR + ("%s: Unable to clear halt on channel %d (timeout HCCHAR 0x%X @%p)\n", + __func__, i, hcchar.d32, &hc_regs->hcchar); + break; + } + dwc_udelay(1); + } while (hcchar.b.chen); + } + } + + /* Turn on the vbus power. */ + DWC_PRINTF("Init: Port Power? op_state=%d\n", core_if->op_state); + if (core_if->op_state == A_HOST) { + hprt0.d32 = dwc_otg_read_hprt0(core_if); + DWC_PRINTF("Init: Power Port (%d)\n", hprt0.b.prtpwr); + if (hprt0.b.prtpwr == 0) { + hprt0.b.prtpwr = 1; + DWC_WRITE_REG32(host_if->hprt0, hprt0.d32); + } + } + + dwc_otg_enable_host_interrupts(core_if); +} + +/** + * Prepares a host channel for transferring packets to/from a specific + * endpoint. The HCCHARn register is set up with the characteristics specified + * in _hc. Host channel interrupts that may need to be serviced while this + * transfer is in progress are enabled. + * + * @param core_if Programming view of DWC_otg controller + * @param hc Information needed to initialize the host channel + */ +void dwc_otg_hc_init(dwc_otg_core_if_t * core_if, dwc_hc_t * hc) +{ + hcintmsk_data_t hc_intr_mask; + hcchar_data_t hcchar; + hcsplt_data_t hcsplt; + + uint8_t hc_num = hc->hc_num; + dwc_otg_host_if_t *host_if = core_if->host_if; + dwc_otg_hc_regs_t *hc_regs = host_if->hc_regs[hc_num]; + + /* Clear old interrupt conditions for this host channel. */ + hc_intr_mask.d32 = 0xFFFFFFFF; + hc_intr_mask.b.reserved14_31 = 0; + DWC_WRITE_REG32(&hc_regs->hcint, hc_intr_mask.d32); + + /* Enable channel interrupts required for this transfer. */ + hc_intr_mask.d32 = 0; + hc_intr_mask.b.chhltd = 1; + if (core_if->dma_enable) { + /* For Descriptor DMA mode core halts the channel on AHB error. Interrupt is not required */ + if (!core_if->dma_desc_enable) + hc_intr_mask.b.ahberr = 1; + else { + if (hc->ep_type == DWC_OTG_EP_TYPE_ISOC) + hc_intr_mask.b.xfercompl = 1; + } + + if (hc->error_state && !hc->do_split && + hc->ep_type != DWC_OTG_EP_TYPE_ISOC) { + hc_intr_mask.b.ack = 1; + if (hc->ep_is_in) { + hc_intr_mask.b.datatglerr = 1; + if (hc->ep_type != DWC_OTG_EP_TYPE_INTR) { + hc_intr_mask.b.nak = 1; + } + } + } + } else { + switch (hc->ep_type) { + case DWC_OTG_EP_TYPE_CONTROL: + case DWC_OTG_EP_TYPE_BULK: + hc_intr_mask.b.xfercompl = 1; + hc_intr_mask.b.stall = 1; + hc_intr_mask.b.xacterr = 1; + hc_intr_mask.b.datatglerr = 1; + if (hc->ep_is_in) { + hc_intr_mask.b.bblerr = 1; + } else { + hc_intr_mask.b.nak = 1; + hc_intr_mask.b.nyet = 1; + if (hc->do_ping) { + hc_intr_mask.b.ack = 1; + } + } + + if (hc->do_split) { + hc_intr_mask.b.nak = 1; + if (hc->complete_split) { + hc_intr_mask.b.nyet = 1; + } else { + hc_intr_mask.b.ack = 1; + } + } + + if (hc->error_state) { + hc_intr_mask.b.ack = 1; + } + break; + case DWC_OTG_EP_TYPE_INTR: + hc_intr_mask.b.xfercompl = 1; + hc_intr_mask.b.nak = 1; + hc_intr_mask.b.stall = 1; + hc_intr_mask.b.xacterr = 1; + hc_intr_mask.b.datatglerr = 1; + hc_intr_mask.b.frmovrun = 1; + + if (hc->ep_is_in) { + hc_intr_mask.b.bblerr = 1; + } + if (hc->error_state) { + hc_intr_mask.b.ack = 1; + } + if (hc->do_split) { + if (hc->complete_split) { + hc_intr_mask.b.nyet = 1; + } else { + hc_intr_mask.b.ack = 1; + } + } + break; + case DWC_OTG_EP_TYPE_ISOC: + hc_intr_mask.b.xfercompl = 1; + hc_intr_mask.b.frmovrun = 1; + hc_intr_mask.b.ack = 1; + + if (hc->ep_is_in) { + hc_intr_mask.b.xacterr = 1; + hc_intr_mask.b.bblerr = 1; + } + break; + } + } + DWC_WRITE_REG32(&hc_regs->hcintmsk, hc_intr_mask.d32); + + /* + * Program the HCCHARn register with the endpoint characteristics for + * the current transfer. + */ + hcchar.d32 = 0; + hcchar.b.devaddr = hc->dev_addr; + hcchar.b.epnum = hc->ep_num; + hcchar.b.epdir = hc->ep_is_in; + hcchar.b.lspddev = (hc->speed == DWC_OTG_EP_SPEED_LOW); + hcchar.b.eptype = hc->ep_type; + hcchar.b.mps = hc->max_packet; + + DWC_WRITE_REG32(&host_if->hc_regs[hc_num]->hcchar, hcchar.d32); + + DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d, Dev Addr %d, EP #%d\n", + __func__, hc->hc_num, hcchar.b.devaddr, hcchar.b.epnum); + DWC_DEBUGPL(DBG_HCDV, " Is In %d, Is Low Speed %d, EP Type %d, " + "Max Pkt %d, Multi Cnt %d\n", + hcchar.b.epdir, hcchar.b.lspddev, hcchar.b.eptype, + hcchar.b.mps, hcchar.b.multicnt); + + /* + * Program the HCSPLIT register for SPLITs + */ + hcsplt.d32 = 0; + if (hc->do_split) { + DWC_DEBUGPL(DBG_HCDV, "Programming HC %d with split --> %s\n", + hc->hc_num, + hc->complete_split ? "CSPLIT" : "SSPLIT"); + hcsplt.b.compsplt = hc->complete_split; + hcsplt.b.xactpos = hc->xact_pos; + hcsplt.b.hubaddr = hc->hub_addr; + hcsplt.b.prtaddr = hc->port_addr; + DWC_DEBUGPL(DBG_HCDV, "\t comp split %d\n", hc->complete_split); + DWC_DEBUGPL(DBG_HCDV, "\t xact pos %d\n", hc->xact_pos); + DWC_DEBUGPL(DBG_HCDV, "\t hub addr %d\n", hc->hub_addr); + DWC_DEBUGPL(DBG_HCDV, "\t port addr %d\n", hc->port_addr); + DWC_DEBUGPL(DBG_HCDV, "\t is_in %d\n", hc->ep_is_in); + DWC_DEBUGPL(DBG_HCDV, "\t Max Pkt: %d\n", hcchar.b.mps); + DWC_DEBUGPL(DBG_HCDV, "\t xferlen: %d\n", hc->xfer_len); + } + DWC_WRITE_REG32(&host_if->hc_regs[hc_num]->hcsplt, hcsplt.d32); + +} + +/** + * Attempts to halt a host channel. This function should only be called in + * Slave mode or to abort a transfer in either Slave mode or DMA mode. Under + * normal circumstances in DMA mode, the controller halts the channel when the + * transfer is complete or a condition occurs that requires application + * intervention. + * + * In slave mode, checks for a free request queue entry, then sets the Channel + * Enable and Channel Disable bits of the Host Channel Characteristics + * register of the specified channel to intiate the halt. If there is no free + * request queue entry, sets only the Channel Disable bit of the HCCHARn + * register to flush requests for this channel. In the latter case, sets a + * flag to indicate that the host channel needs to be halted when a request + * queue slot is open. + * + * In DMA mode, always sets the Channel Enable and Channel Disable bits of the + * HCCHARn register. The controller ensures there is space in the request + * queue before submitting the halt request. + * + * Some time may elapse before the core flushes any posted requests for this + * host channel and halts. The Channel Halted interrupt handler completes the + * deactivation of the host channel. + * + * @param core_if Controller register interface. + * @param hc Host channel to halt. + * @param halt_status Reason for halting the channel. + */ +void dwc_otg_hc_halt(dwc_otg_core_if_t * core_if, + dwc_hc_t * hc, dwc_otg_halt_status_e halt_status) +{ + gnptxsts_data_t nptxsts; + hptxsts_data_t hptxsts; + hcchar_data_t hcchar; + dwc_otg_hc_regs_t *hc_regs; + dwc_otg_core_global_regs_t *global_regs; + dwc_otg_host_global_regs_t *host_global_regs; + + hc_regs = core_if->host_if->hc_regs[hc->hc_num]; + global_regs = core_if->core_global_regs; + host_global_regs = core_if->host_if->host_global_regs; + + DWC_ASSERT(!(halt_status == DWC_OTG_HC_XFER_NO_HALT_STATUS), + "halt_status = %d\n", halt_status); + + if (halt_status == DWC_OTG_HC_XFER_URB_DEQUEUE || + halt_status == DWC_OTG_HC_XFER_AHB_ERR) { + /* + * Disable all channel interrupts except Ch Halted. The QTD + * and QH state associated with this transfer has been cleared + * (in the case of URB_DEQUEUE), so the channel needs to be + * shut down carefully to prevent crashes. + */ + hcintmsk_data_t hcintmsk; + hcintmsk.d32 = 0; + hcintmsk.b.chhltd = 1; + DWC_WRITE_REG32(&hc_regs->hcintmsk, hcintmsk.d32); + + /* + * Make sure no other interrupts besides halt are currently + * pending. Handling another interrupt could cause a crash due + * to the QTD and QH state. + */ + DWC_WRITE_REG32(&hc_regs->hcint, ~hcintmsk.d32); + + /* + * Make sure the halt status is set to URB_DEQUEUE or AHB_ERR + * even if the channel was already halted for some other + * reason. + */ + hc->halt_status = halt_status; + + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + if (hcchar.b.chen == 0) { + /* + * The channel is either already halted or it hasn't + * started yet. In DMA mode, the transfer may halt if + * it finishes normally or a condition occurs that + * requires driver intervention. Don't want to halt + * the channel again. In either Slave or DMA mode, + * it's possible that the transfer has been assigned + * to a channel, but not started yet when an URB is + * dequeued. Don't want to halt a channel that hasn't + * started yet. + */ + return; + } + } + if (hc->halt_pending) { + /* + * A halt has already been issued for this channel. This might + * happen when a transfer is aborted by a higher level in + * the stack. + */ +#ifdef DEBUG + DWC_PRINTF + ("*** %s: Channel %d, _hc->halt_pending already set ***\n", + __func__, hc->hc_num); + +#endif + return; + } + + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + + /* No need to set the bit in DDMA for disabling the channel */ + //TODO check it everywhere channel is disabled + if (!core_if->core_params->dma_desc_enable) + hcchar.b.chen = 1; + hcchar.b.chdis = 1; + + if (!core_if->dma_enable) { + /* Check for space in the request queue to issue the halt. */ + if (hc->ep_type == DWC_OTG_EP_TYPE_CONTROL || + hc->ep_type == DWC_OTG_EP_TYPE_BULK) { + nptxsts.d32 = DWC_READ_REG32(&global_regs->gnptxsts); + if (nptxsts.b.nptxqspcavail == 0) { + hcchar.b.chen = 0; + } + } else { + hptxsts.d32 = + DWC_READ_REG32(&host_global_regs->hptxsts); + if ((hptxsts.b.ptxqspcavail == 0) + || (core_if->queuing_high_bandwidth)) { + hcchar.b.chen = 0; + } + } + } + DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32); + + hc->halt_status = halt_status; + + if (hcchar.b.chen) { + hc->halt_pending = 1; + hc->halt_on_queue = 0; + } else { + hc->halt_on_queue = 1; + } + + DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, hc->hc_num); + DWC_DEBUGPL(DBG_HCDV, " hcchar: 0x%08x\n", hcchar.d32); + DWC_DEBUGPL(DBG_HCDV, " halt_pending: %d\n", hc->halt_pending); + DWC_DEBUGPL(DBG_HCDV, " halt_on_queue: %d\n", hc->halt_on_queue); + DWC_DEBUGPL(DBG_HCDV, " halt_status: %d\n", hc->halt_status); + + return; +} + +/** + * Clears the transfer state for a host channel. This function is normally + * called after a transfer is done and the host channel is being released. + * + * @param core_if Programming view of DWC_otg controller. + * @param hc Identifies the host channel to clean up. + */ +void dwc_otg_hc_cleanup(dwc_otg_core_if_t * core_if, dwc_hc_t * hc) +{ + dwc_otg_hc_regs_t *hc_regs; + + hc->xfer_started = 0; + + /* + * Clear channel interrupt enables and any unhandled channel interrupt + * conditions. + */ + hc_regs = core_if->host_if->hc_regs[hc->hc_num]; + DWC_WRITE_REG32(&hc_regs->hcintmsk, 0); + DWC_WRITE_REG32(&hc_regs->hcint, 0xFFFFFFFF); +#ifdef DEBUG + DWC_TIMER_CANCEL(core_if->hc_xfer_timer[hc->hc_num]); +#endif +} + +/** + * Sets the channel property that indicates in which frame a periodic transfer + * should occur. This is always set to the _next_ frame. This function has no + * effect on non-periodic transfers. + * + * @param core_if Programming view of DWC_otg controller. + * @param hc Identifies the host channel to set up and its properties. + * @param hcchar Current value of the HCCHAR register for the specified host + * channel. + */ +static inline void hc_set_even_odd_frame(dwc_otg_core_if_t * core_if, + dwc_hc_t * hc, hcchar_data_t * hcchar) +{ + if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || + hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { + hfnum_data_t hfnum; + hfnum.d32 = + DWC_READ_REG32(&core_if->host_if->host_global_regs->hfnum); + + /* 1 if _next_ frame is odd, 0 if it's even */ + hcchar->b.oddfrm = (hfnum.b.frnum & 0x1) ? 0 : 1; +#ifdef DEBUG + if (hc->ep_type == DWC_OTG_EP_TYPE_INTR && hc->do_split + && !hc->complete_split) { + switch (hfnum.b.frnum & 0x7) { + case 7: + core_if->hfnum_7_samples++; + core_if->hfnum_7_frrem_accum += hfnum.b.frrem; + break; + case 0: + core_if->hfnum_0_samples++; + core_if->hfnum_0_frrem_accum += hfnum.b.frrem; + break; + default: + core_if->hfnum_other_samples++; + core_if->hfnum_other_frrem_accum += + hfnum.b.frrem; + break; + } + } +#endif + } +} + +#ifdef DEBUG +void hc_xfer_timeout(void *ptr) +{ + hc_xfer_info_t *xfer_info = NULL; + int hc_num = 0; + + if (ptr) + xfer_info = (hc_xfer_info_t *) ptr; + + if (!xfer_info->hc) { + DWC_ERROR("xfer_info->hc = %p\n", xfer_info->hc); + return; + } + + hc_num = xfer_info->hc->hc_num; + DWC_WARN("%s: timeout on channel %d\n", __func__, hc_num); + DWC_WARN(" start_hcchar_val 0x%08x\n", + xfer_info->core_if->start_hcchar_val[hc_num]); +} +#endif + +void ep_xfer_timeout(void *ptr) +{ + ep_xfer_info_t *xfer_info = NULL; + int ep_num = 0; + dctl_data_t dctl = {.d32 = 0 }; + gintsts_data_t gintsts = {.d32 = 0 }; + gintmsk_data_t gintmsk = {.d32 = 0 }; + + if (ptr) + xfer_info = (ep_xfer_info_t *) ptr; + + if (!xfer_info->ep) { + DWC_ERROR("xfer_info->ep = %p\n", xfer_info->ep); + return; + } + + ep_num = xfer_info->ep->num; + DWC_WARN("%s: timeout on endpoit %d\n", __func__, ep_num); + /* Put the sate to 2 as it was time outed */ + xfer_info->state = 2; + + dctl.d32 = + DWC_READ_REG32(&xfer_info->core_if->dev_if->dev_global_regs->dctl); + gintsts.d32 = + DWC_READ_REG32(&xfer_info->core_if->core_global_regs->gintsts); + gintmsk.d32 = + DWC_READ_REG32(&xfer_info->core_if->core_global_regs->gintmsk); + + if (!gintmsk.b.goutnakeff) { + /* Unmask it */ + gintmsk.b.goutnakeff = 1; + DWC_WRITE_REG32(&xfer_info->core_if->core_global_regs->gintmsk, + gintmsk.d32); + + } + + if (!gintsts.b.goutnakeff) { + dctl.b.sgoutnak = 1; + } + DWC_WRITE_REG32(&xfer_info->core_if->dev_if->dev_global_regs->dctl, + dctl.d32); + +} + +void set_pid_isoc(dwc_hc_t * hc) +{ + /* Set up the initial PID for the transfer. */ + if (hc->speed == DWC_OTG_EP_SPEED_HIGH) { + if (hc->ep_is_in) { + if (hc->multi_count == 1) { + hc->data_pid_start = DWC_OTG_HC_PID_DATA0; + } else if (hc->multi_count == 2) { + hc->data_pid_start = DWC_OTG_HC_PID_DATA1; + } else { + hc->data_pid_start = DWC_OTG_HC_PID_DATA2; + } + } else { + if (hc->multi_count == 1) { + hc->data_pid_start = DWC_OTG_HC_PID_DATA0; + } else { + hc->data_pid_start = DWC_OTG_HC_PID_MDATA; + } + } + } else { + hc->data_pid_start = DWC_OTG_HC_PID_DATA0; + } +} + +/** + * This function does the setup for a data transfer for a host channel and + * starts the transfer. May be called in either Slave mode or DMA mode. In + * Slave mode, the caller must ensure that there is sufficient space in the + * request queue and Tx Data FIFO. + * + * For an OUT transfer in Slave mode, it loads a data packet into the + * appropriate FIFO. If necessary, additional data packets will be loaded in + * the Host ISR. + * + * For an IN transfer in Slave mode, a data packet is requested. The data + * packets are unloaded from the Rx FIFO in the Host ISR. If necessary, + * additional data packets are requested in the Host ISR. + * + * For a PING transfer in Slave mode, the Do Ping bit is set in the HCTSIZ + * register along with a packet count of 1 and the channel is enabled. This + * causes a single PING transaction to occur. Other fields in HCTSIZ are + * simply set to 0 since no data transfer occurs in this case. + * + * For a PING transfer in DMA mode, the HCTSIZ register is initialized with + * all the information required to perform the subsequent data transfer. In + * addition, the Do Ping bit is set in the HCTSIZ register. In this case, the + * controller performs the entire PING protocol, then starts the data + * transfer. + * + * @param core_if Programming view of DWC_otg controller. + * @param hc Information needed to initialize the host channel. The xfer_len + * value may be reduced to accommodate the max widths of the XferSize and + * PktCnt fields in the HCTSIZn register. The multi_count value may be changed + * to reflect the final xfer_len value. + */ +void dwc_otg_hc_start_transfer(dwc_otg_core_if_t * core_if, dwc_hc_t * hc) +{ + hcchar_data_t hcchar; + hctsiz_data_t hctsiz; + uint16_t num_packets; + uint32_t max_hc_xfer_size = core_if->core_params->max_transfer_size; + uint16_t max_hc_pkt_count = core_if->core_params->max_packet_count; + dwc_otg_hc_regs_t *hc_regs = core_if->host_if->hc_regs[hc->hc_num]; + + hctsiz.d32 = 0; + + if (hc->do_ping) { + if (!core_if->dma_enable) { + dwc_otg_hc_do_ping(core_if, hc); + hc->xfer_started = 1; + return; + } else { + hctsiz.b.dopng = 1; + } + } + + if (hc->do_split) { + num_packets = 1; + + if (hc->complete_split && !hc->ep_is_in) { + /* For CSPLIT OUT Transfer, set the size to 0 so the + * core doesn't expect any data written to the FIFO */ + hc->xfer_len = 0; + } else if (hc->ep_is_in || (hc->xfer_len > hc->max_packet)) { + hc->xfer_len = hc->max_packet; + } else if (!hc->ep_is_in && (hc->xfer_len > 188)) { + hc->xfer_len = 188; + } + + hctsiz.b.xfersize = hc->xfer_len; + } else { + /* + * Ensure that the transfer length and packet count will fit + * in the widths allocated for them in the HCTSIZn register. + */ + if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || + hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { + /* + * Make sure the transfer size is no larger than one + * (micro)frame's worth of data. (A check was done + * when the periodic transfer was accepted to ensure + * that a (micro)frame's worth of data can be + * programmed into a channel.) + */ + uint32_t max_periodic_len = + hc->multi_count * hc->max_packet; + if (hc->xfer_len > max_periodic_len) { + hc->xfer_len = max_periodic_len; + } else { + } + } else if (hc->xfer_len > max_hc_xfer_size) { + /* Make sure that xfer_len is a multiple of max packet size. */ + hc->xfer_len = max_hc_xfer_size - hc->max_packet + 1; + } + + if (hc->xfer_len > 0) { + num_packets = + (hc->xfer_len + hc->max_packet - + 1) / hc->max_packet; + if (num_packets > max_hc_pkt_count) { + num_packets = max_hc_pkt_count; + hc->xfer_len = num_packets * hc->max_packet; + } + } else { + /* Need 1 packet for transfer length of 0. */ + num_packets = 1; + } + + if (hc->ep_is_in) { + /* Always program an integral # of max packets for IN transfers. */ + hc->xfer_len = num_packets * hc->max_packet; + } + + if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || + hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { + /* + * Make sure that the multi_count field matches the + * actual transfer length. + */ + hc->multi_count = num_packets; + } + + if (hc->ep_type == DWC_OTG_EP_TYPE_ISOC) + set_pid_isoc(hc); + + hctsiz.b.xfersize = hc->xfer_len; + } + + hc->start_pkt_count = num_packets; + hctsiz.b.pktcnt = num_packets; + hctsiz.b.pid = hc->data_pid_start; + DWC_WRITE_REG32(&hc_regs->hctsiz, hctsiz.d32); + + DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, hc->hc_num); + DWC_DEBUGPL(DBG_HCDV, " Xfer Size: %d\n", hctsiz.b.xfersize); + DWC_DEBUGPL(DBG_HCDV, " Num Pkts: %d\n", hctsiz.b.pktcnt); + DWC_DEBUGPL(DBG_HCDV, " Start PID: %d\n", hctsiz.b.pid); + + if (core_if->dma_enable) { + dwc_dma_t dma_addr; + if (hc->align_buff) { + dma_addr = hc->align_buff; + } else { + dma_addr = ((unsigned long)hc->xfer_buff & 0xffffffff); + } + DWC_WRITE_REG32(&hc_regs->hcdma, dma_addr); + } + + /* Start the split */ + if (hc->do_split) { + hcsplt_data_t hcsplt; + hcsplt.d32 = DWC_READ_REG32(&hc_regs->hcsplt); + hcsplt.b.spltena = 1; + DWC_WRITE_REG32(&hc_regs->hcsplt, hcsplt.d32); + } + + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + hcchar.b.multicnt = hc->multi_count; + hc_set_even_odd_frame(core_if, hc, &hcchar); +#ifdef DEBUG + core_if->start_hcchar_val[hc->hc_num] = hcchar.d32; + if (hcchar.b.chdis) { + DWC_WARN("%s: chdis set, channel %d, hcchar 0x%08x\n", + __func__, hc->hc_num, hcchar.d32); + } +#endif + + /* Set host channel enable after all other setup is complete. */ + hcchar.b.chen = 1; + hcchar.b.chdis = 0; + DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32); + + hc->xfer_started = 1; + hc->requests++; + + if (!core_if->dma_enable && !hc->ep_is_in && hc->xfer_len > 0) { + /* Load OUT packet into the appropriate Tx FIFO. */ + dwc_otg_hc_write_packet(core_if, hc); + } +#ifdef DEBUG + if (hc->ep_type != DWC_OTG_EP_TYPE_INTR) { + DWC_DEBUGPL(DBG_HCDV, "transfer %d from core_if %p\n", + hc->hc_num, core_if);//GRAYG + core_if->hc_xfer_info[hc->hc_num].core_if = core_if; + core_if->hc_xfer_info[hc->hc_num].hc = hc; + + /* Start a timer for this transfer. */ + DWC_TIMER_SCHEDULE(core_if->hc_xfer_timer[hc->hc_num], 10000); + } +#endif +} + +/** + * This function does the setup for a data transfer for a host channel + * and starts the transfer in Descriptor DMA mode. + * + * Initializes HCTSIZ register. For a PING transfer the Do Ping bit is set. + * Sets PID and NTD values. For periodic transfers + * initializes SCHED_INFO field with micro-frame bitmap. + * + * Initializes HCDMA register with descriptor list address and CTD value + * then starts the transfer via enabling the channel. + * + * @param core_if Programming view of DWC_otg controller. + * @param hc Information needed to initialize the host channel. + */ +void dwc_otg_hc_start_transfer_ddma(dwc_otg_core_if_t * core_if, dwc_hc_t * hc) +{ + dwc_otg_hc_regs_t *hc_regs = core_if->host_if->hc_regs[hc->hc_num]; + hcchar_data_t hcchar; + hctsiz_data_t hctsiz; + hcdma_data_t hcdma; + + hctsiz.d32 = 0; + + if (hc->do_ping) + hctsiz.b_ddma.dopng = 1; + + if (hc->ep_type == DWC_OTG_EP_TYPE_ISOC) + set_pid_isoc(hc); + + /* Packet Count and Xfer Size are not used in Descriptor DMA mode */ + hctsiz.b_ddma.pid = hc->data_pid_start; + hctsiz.b_ddma.ntd = hc->ntd - 1; /* 0 - 1 descriptor, 1 - 2 descriptors, etc. */ + hctsiz.b_ddma.schinfo = hc->schinfo; /* Non-zero only for high-speed interrupt endpoints */ + + DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, hc->hc_num); + DWC_DEBUGPL(DBG_HCDV, " Start PID: %d\n", hctsiz.b.pid); + DWC_DEBUGPL(DBG_HCDV, " NTD: %d\n", hctsiz.b_ddma.ntd); + + DWC_WRITE_REG32(&hc_regs->hctsiz, hctsiz.d32); + + hcdma.d32 = 0; + hcdma.b.dma_addr = ((uint32_t) hc->desc_list_addr) >> 11; + + /* Always start from first descriptor. */ + hcdma.b.ctd = 0; + DWC_WRITE_REG32(&hc_regs->hcdma, hcdma.d32); + + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + hcchar.b.multicnt = hc->multi_count; + +#ifdef DEBUG + core_if->start_hcchar_val[hc->hc_num] = hcchar.d32; + if (hcchar.b.chdis) { + DWC_WARN("%s: chdis set, channel %d, hcchar 0x%08x\n", + __func__, hc->hc_num, hcchar.d32); + } +#endif + + /* Set host channel enable after all other setup is complete. */ + hcchar.b.chen = 1; + hcchar.b.chdis = 0; + + DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32); + + hc->xfer_started = 1; + hc->requests++; + +#ifdef DEBUG + if ((hc->ep_type != DWC_OTG_EP_TYPE_INTR) + && (hc->ep_type != DWC_OTG_EP_TYPE_ISOC)) { + DWC_DEBUGPL(DBG_HCDV, "DMA transfer %d from core_if %p\n", + hc->hc_num, core_if);//GRAYG + core_if->hc_xfer_info[hc->hc_num].core_if = core_if; + core_if->hc_xfer_info[hc->hc_num].hc = hc; + /* Start a timer for this transfer. */ + DWC_TIMER_SCHEDULE(core_if->hc_xfer_timer[hc->hc_num], 10000); + } +#endif + +} + +/** + * This function continues a data transfer that was started by previous call + * to dwc_otg_hc_start_transfer. The caller must ensure there is + * sufficient space in the request queue and Tx Data FIFO. This function + * should only be called in Slave mode. In DMA mode, the controller acts + * autonomously to complete transfers programmed to a host channel. + * + * For an OUT transfer, a new data packet is loaded into the appropriate FIFO + * if there is any data remaining to be queued. For an IN transfer, another + * data packet is always requested. For the SETUP phase of a control transfer, + * this function does nothing. + * + * @return 1 if a new request is queued, 0 if no more requests are required + * for this transfer. + */ +int dwc_otg_hc_continue_transfer(dwc_otg_core_if_t * core_if, dwc_hc_t * hc) +{ + DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, hc->hc_num); + + if (hc->do_split) { + /* SPLITs always queue just once per channel */ + return 0; + } else if (hc->data_pid_start == DWC_OTG_HC_PID_SETUP) { + /* SETUPs are queued only once since they can't be NAKed. */ + return 0; + } else if (hc->ep_is_in) { + /* + * Always queue another request for other IN transfers. If + * back-to-back INs are issued and NAKs are received for both, + * the driver may still be processing the first NAK when the + * second NAK is received. When the interrupt handler clears + * the NAK interrupt for the first NAK, the second NAK will + * not be seen. So we can't depend on the NAK interrupt + * handler to requeue a NAKed request. Instead, IN requests + * are issued each time this function is called. When the + * transfer completes, the extra requests for the channel will + * be flushed. + */ + hcchar_data_t hcchar; + dwc_otg_hc_regs_t *hc_regs = + core_if->host_if->hc_regs[hc->hc_num]; + + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + hc_set_even_odd_frame(core_if, hc, &hcchar); + hcchar.b.chen = 1; + hcchar.b.chdis = 0; + DWC_DEBUGPL(DBG_HCDV, " IN xfer: hcchar = 0x%08x\n", + hcchar.d32); + DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32); + hc->requests++; + return 1; + } else { + /* OUT transfers. */ + if (hc->xfer_count < hc->xfer_len) { + if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || + hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { + hcchar_data_t hcchar; + dwc_otg_hc_regs_t *hc_regs; + hc_regs = core_if->host_if->hc_regs[hc->hc_num]; + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + hc_set_even_odd_frame(core_if, hc, &hcchar); + } + + /* Load OUT packet into the appropriate Tx FIFO. */ + dwc_otg_hc_write_packet(core_if, hc); + hc->requests++; + return 1; + } else { + return 0; + } + } +} + +/** + * Starts a PING transfer. This function should only be called in Slave mode. + * The Do Ping bit is set in the HCTSIZ register, then the channel is enabled. + */ +void dwc_otg_hc_do_ping(dwc_otg_core_if_t * core_if, dwc_hc_t * hc) +{ + hcchar_data_t hcchar; + hctsiz_data_t hctsiz; + dwc_otg_hc_regs_t *hc_regs = core_if->host_if->hc_regs[hc->hc_num]; + + DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, hc->hc_num); + + hctsiz.d32 = 0; + hctsiz.b.dopng = 1; + hctsiz.b.pktcnt = 1; + DWC_WRITE_REG32(&hc_regs->hctsiz, hctsiz.d32); + + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + hcchar.b.chen = 1; + hcchar.b.chdis = 0; + DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32); +} + +/* + * This function writes a packet into the Tx FIFO associated with the Host + * Channel. For a channel associated with a non-periodic EP, the non-periodic + * Tx FIFO is written. For a channel associated with a periodic EP, the + * periodic Tx FIFO is written. This function should only be called in Slave + * mode. + * + * Upon return the xfer_buff and xfer_count fields in _hc are incremented by + * then number of bytes written to the Tx FIFO. + */ +void dwc_otg_hc_write_packet(dwc_otg_core_if_t * core_if, dwc_hc_t * hc) +{ + uint32_t i; + uint32_t remaining_count; + uint32_t byte_count; + uint32_t dword_count; + + uint32_t *data_buff = (uint32_t *) (hc->xfer_buff); + uint32_t *data_fifo = core_if->data_fifo[hc->hc_num]; + + remaining_count = hc->xfer_len - hc->xfer_count; + if (remaining_count > hc->max_packet) { + byte_count = hc->max_packet; + } else { + byte_count = remaining_count; + } + + dword_count = (byte_count + 3) / 4; + + if ((((unsigned long)data_buff) & 0x3) == 0) { + /* xfer_buff is DWORD aligned. */ + for (i = 0; i < dword_count; i++, data_buff++) { + DWC_WRITE_REG32(data_fifo, *data_buff); + } + } else { + /* xfer_buff is not DWORD aligned. */ + for (i = 0; i < dword_count; i++, data_buff++) { + uint32_t data; + data = + (data_buff[0] | data_buff[1] << 8 | data_buff[2] << + 16 | data_buff[3] << 24); + DWC_WRITE_REG32(data_fifo, data); + } + } + + hc->xfer_count += byte_count; + hc->xfer_buff += byte_count; +} + +/** + * Gets the current USB frame number. This is the frame number from the last + * SOF packet. + */ +uint32_t dwc_otg_get_frame_number(dwc_otg_core_if_t * core_if) +{ + dsts_data_t dsts; + dsts.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dsts); + + /* read current frame/microframe number from DSTS register */ + return dsts.b.soffn; +} + +/** + * Calculates and gets the frame Interval value of HFIR register according PHY + * type and speed.The application can modify a value of HFIR register only after + * the Port Enable bit of the Host Port Control and Status register + * (HPRT.PrtEnaPort) has been set. +*/ + +uint32_t calc_frame_interval(dwc_otg_core_if_t * core_if) +{ + gusbcfg_data_t usbcfg; + hwcfg2_data_t hwcfg2; + hprt0_data_t hprt0; + int clock = 60; // default value + usbcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->gusbcfg); + hwcfg2.d32 = DWC_READ_REG32(&core_if->core_global_regs->ghwcfg2); + hprt0.d32 = DWC_READ_REG32(core_if->host_if->hprt0); + if (!usbcfg.b.physel && usbcfg.b.ulpi_utmi_sel && !usbcfg.b.phyif) + clock = 60; + if (usbcfg.b.physel && hwcfg2.b.fs_phy_type == 3) + clock = 48; + if (!usbcfg.b.phylpwrclksel && !usbcfg.b.physel && + !usbcfg.b.ulpi_utmi_sel && usbcfg.b.phyif) + clock = 30; + if (!usbcfg.b.phylpwrclksel && !usbcfg.b.physel && + !usbcfg.b.ulpi_utmi_sel && !usbcfg.b.phyif) + clock = 60; + if (usbcfg.b.phylpwrclksel && !usbcfg.b.physel && + !usbcfg.b.ulpi_utmi_sel && usbcfg.b.phyif) + clock = 48; + if (usbcfg.b.physel && !usbcfg.b.phyif && hwcfg2.b.fs_phy_type == 2) + clock = 48; + if (usbcfg.b.physel && hwcfg2.b.fs_phy_type == 1) + clock = 48; + if (hprt0.b.prtspd == 0) + /* High speed case */ + return 125 * clock - 1; + else + /* FS/LS case */ + return 1000 * clock - 1; +} + +/** + * This function reads a setup packet from the Rx FIFO into the destination + * buffer. This function is called from the Rx Status Queue Level (RxStsQLvl) + * Interrupt routine when a SETUP packet has been received in Slave mode. + * + * @param core_if Programming view of DWC_otg controller. + * @param dest Destination buffer for packet data. + */ +void dwc_otg_read_setup_packet(dwc_otg_core_if_t * core_if, uint32_t * dest) +{ + device_grxsts_data_t status; + /* Get the 8 bytes of a setup transaction data */ + + /* Pop 2 DWORDS off the receive data FIFO into memory */ + dest[0] = DWC_READ_REG32(core_if->data_fifo[0]); + dest[1] = DWC_READ_REG32(core_if->data_fifo[0]); + if (core_if->snpsid >= OTG_CORE_REV_3_00a) { + status.d32 = + DWC_READ_REG32(&core_if->core_global_regs->grxstsp); + DWC_DEBUGPL(DBG_ANY, + "EP:%d BCnt:%d " "pktsts:%x Frame:%d(0x%0x)\n", + status.b.epnum, status.b.bcnt, status.b.pktsts, + status.b.fn, status.b.fn); + } +} + +/** + * This function enables EP0 OUT to receive SETUP packets and configures EP0 + * IN for transmitting packets. It is normally called when the + * "Enumeration Done" interrupt occurs. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP0 data. + */ +void dwc_otg_ep0_activate(dwc_otg_core_if_t * core_if, dwc_ep_t * ep) +{ + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + dsts_data_t dsts; + depctl_data_t diepctl; + depctl_data_t doepctl; + dctl_data_t dctl = {.d32 = 0 }; + + ep->stp_rollover = 0; + /* Read the Device Status and Endpoint 0 Control registers */ + dsts.d32 = DWC_READ_REG32(&dev_if->dev_global_regs->dsts); + diepctl.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[0]->diepctl); + doepctl.d32 = DWC_READ_REG32(&dev_if->out_ep_regs[0]->doepctl); + + /* Set the MPS of the IN EP based on the enumeration speed */ + switch (dsts.b.enumspd) { + case DWC_DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ: + case DWC_DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ: + case DWC_DSTS_ENUMSPD_FS_PHY_48MHZ: + diepctl.b.mps = DWC_DEP0CTL_MPS_64; + break; + case DWC_DSTS_ENUMSPD_LS_PHY_6MHZ: + diepctl.b.mps = DWC_DEP0CTL_MPS_8; + break; + } + + DWC_WRITE_REG32(&dev_if->in_ep_regs[0]->diepctl, diepctl.d32); + + /* Enable OUT EP for receive */ + if (core_if->snpsid <= OTG_CORE_REV_2_94a) { + doepctl.b.epena = 1; + DWC_WRITE_REG32(&dev_if->out_ep_regs[0]->doepctl, doepctl.d32); + } +#ifdef VERBOSE + DWC_DEBUGPL(DBG_PCDV, "doepctl0=%0x\n", + DWC_READ_REG32(&dev_if->out_ep_regs[0]->doepctl)); + DWC_DEBUGPL(DBG_PCDV, "diepctl0=%0x\n", + DWC_READ_REG32(&dev_if->in_ep_regs[0]->diepctl)); +#endif + dctl.b.cgnpinnak = 1; + + DWC_MODIFY_REG32(&dev_if->dev_global_regs->dctl, dctl.d32, dctl.d32); + DWC_DEBUGPL(DBG_PCDV, "dctl=%0x\n", + DWC_READ_REG32(&dev_if->dev_global_regs->dctl)); + +} + +/** + * This function activates an EP. The Device EP control register for + * the EP is configured as defined in the ep structure. Note: This + * function is not used for EP0. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to activate. + */ +void dwc_otg_ep_activate(dwc_otg_core_if_t * core_if, dwc_ep_t * ep) +{ + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + depctl_data_t depctl; + volatile uint32_t *addr; + daint_data_t daintmsk = {.d32 = 0 }; + dcfg_data_t dcfg; + uint8_t i; + + DWC_DEBUGPL(DBG_PCDV, "%s() EP%d-%s\n", __func__, ep->num, + (ep->is_in ? "IN" : "OUT")); + +#ifdef DWC_UTE_PER_IO + ep->xiso_frame_num = 0xFFFFFFFF; + ep->xiso_active_xfers = 0; + ep->xiso_queued_xfers = 0; +#endif + /* Read DEPCTLn register */ + if (ep->is_in == 1) { + addr = &dev_if->in_ep_regs[ep->num]->diepctl; + daintmsk.ep.in = 1 << ep->num; + } else { + addr = &dev_if->out_ep_regs[ep->num]->doepctl; + daintmsk.ep.out = 1 << ep->num; + } + + /* If the EP is already active don't change the EP Control + * register. */ + depctl.d32 = DWC_READ_REG32(addr); + if (!depctl.b.usbactep) { + depctl.b.mps = ep->maxpacket; + depctl.b.eptype = ep->type; + depctl.b.txfnum = ep->tx_fifo_num; + + if (ep->type == DWC_OTG_EP_TYPE_ISOC) { + depctl.b.setd0pid = 1; // ??? + } else { + depctl.b.setd0pid = 1; + } + depctl.b.usbactep = 1; + + /* Update nextep_seq array and EPMSCNT in DCFG*/ + if (!(depctl.b.eptype & 1) && (ep->is_in == 1)) { // NP IN EP + for (i = 0; i <= core_if->dev_if->num_in_eps; i++) { + if (core_if->nextep_seq[i] == core_if->first_in_nextep_seq) + break; + } + core_if->nextep_seq[i] = ep->num; + core_if->nextep_seq[ep->num] = core_if->first_in_nextep_seq; + depctl.b.nextep = core_if->nextep_seq[ep->num]; + dcfg.d32 = DWC_READ_REG32(&dev_if->dev_global_regs->dcfg); + dcfg.b.epmscnt++; + DWC_WRITE_REG32(&dev_if->dev_global_regs->dcfg, dcfg.d32); + + DWC_DEBUGPL(DBG_PCDV, + "%s first_in_nextep_seq= %2d; nextep_seq[]:\n", + __func__, core_if->first_in_nextep_seq); + for (i=0; i <= core_if->dev_if->num_in_eps; i++) { + DWC_DEBUGPL(DBG_PCDV, "%2d\n", + core_if->nextep_seq[i]); + } + + } + + + DWC_WRITE_REG32(addr, depctl.d32); + DWC_DEBUGPL(DBG_PCDV, "DEPCTL=%08x\n", DWC_READ_REG32(addr)); + } + + /* Enable the Interrupt for this EP */ + if (core_if->multiproc_int_enable) { + if (ep->is_in == 1) { + diepmsk_data_t diepmsk = {.d32 = 0 }; + diepmsk.b.xfercompl = 1; + diepmsk.b.timeout = 1; + diepmsk.b.epdisabled = 1; + diepmsk.b.ahberr = 1; + diepmsk.b.intknepmis = 1; + if (!core_if->en_multiple_tx_fifo && core_if->dma_enable) + diepmsk.b.intknepmis = 0; + diepmsk.b.txfifoundrn = 1; //????? + if (ep->type == DWC_OTG_EP_TYPE_ISOC) { + diepmsk.b.nak = 1; + } + + + +/* + if (core_if->dma_desc_enable) { + diepmsk.b.bna = 1; + } +*/ +/* + if (core_if->dma_enable) { + doepmsk.b.nak = 1; + } +*/ + DWC_WRITE_REG32(&dev_if->dev_global_regs-> + diepeachintmsk[ep->num], diepmsk.d32); + + } else { + doepmsk_data_t doepmsk = {.d32 = 0 }; + doepmsk.b.xfercompl = 1; + doepmsk.b.ahberr = 1; + doepmsk.b.epdisabled = 1; + if (ep->type == DWC_OTG_EP_TYPE_ISOC) + doepmsk.b.outtknepdis = 1; + +/* + + if (core_if->dma_desc_enable) { + doepmsk.b.bna = 1; + } +*/ +/* + doepmsk.b.babble = 1; + doepmsk.b.nyet = 1; + doepmsk.b.nak = 1; +*/ + DWC_WRITE_REG32(&dev_if->dev_global_regs-> + doepeachintmsk[ep->num], doepmsk.d32); + } + DWC_MODIFY_REG32(&dev_if->dev_global_regs->deachintmsk, + 0, daintmsk.d32); + } else { + if (ep->type == DWC_OTG_EP_TYPE_ISOC) { + if (ep->is_in) { + diepmsk_data_t diepmsk = {.d32 = 0 }; + diepmsk.b.nak = 1; + DWC_MODIFY_REG32(&dev_if->dev_global_regs->diepmsk, 0, diepmsk.d32); + } else { + doepmsk_data_t doepmsk = {.d32 = 0 }; + doepmsk.b.outtknepdis = 1; + DWC_MODIFY_REG32(&dev_if->dev_global_regs->doepmsk, 0, doepmsk.d32); + } + } + DWC_MODIFY_REG32(&dev_if->dev_global_regs->daintmsk, + 0, daintmsk.d32); + } + + DWC_DEBUGPL(DBG_PCDV, "DAINTMSK=%0x\n", + DWC_READ_REG32(&dev_if->dev_global_regs->daintmsk)); + + ep->stall_clear_flag = 0; + + return; +} + +/** + * This function deactivates an EP. This is done by clearing the USB Active + * EP bit in the Device EP control register. Note: This function is not used + * for EP0. EP0 cannot be deactivated. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to deactivate. + */ +void dwc_otg_ep_deactivate(dwc_otg_core_if_t * core_if, dwc_ep_t * ep) +{ + depctl_data_t depctl = {.d32 = 0 }; + volatile uint32_t *addr; + daint_data_t daintmsk = {.d32 = 0 }; + dcfg_data_t dcfg; + uint8_t i = 0; + +#ifdef DWC_UTE_PER_IO + ep->xiso_frame_num = 0xFFFFFFFF; + ep->xiso_active_xfers = 0; + ep->xiso_queued_xfers = 0; +#endif + + /* Read DEPCTLn register */ + if (ep->is_in == 1) { + addr = &core_if->dev_if->in_ep_regs[ep->num]->diepctl; + daintmsk.ep.in = 1 << ep->num; + } else { + addr = &core_if->dev_if->out_ep_regs[ep->num]->doepctl; + daintmsk.ep.out = 1 << ep->num; + } + + depctl.d32 = DWC_READ_REG32(addr); + + depctl.b.usbactep = 0; + + /* Update nextep_seq array and EPMSCNT in DCFG*/ + if (!(depctl.b.eptype & 1) && ep->is_in == 1) { // NP EP IN + for (i = 0; i <= core_if->dev_if->num_in_eps; i++) { + if (core_if->nextep_seq[i] == ep->num) + break; + } + core_if->nextep_seq[i] = core_if->nextep_seq[ep->num]; + if (core_if->first_in_nextep_seq == ep->num) + core_if->first_in_nextep_seq = i; + core_if->nextep_seq[ep->num] = 0xff; + depctl.b.nextep = 0; + dcfg.d32 = + DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dcfg); + dcfg.b.epmscnt--; + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dcfg, + dcfg.d32); + + DWC_DEBUGPL(DBG_PCDV, + "%s first_in_nextep_seq= %2d; nextep_seq[]:\n", + __func__, core_if->first_in_nextep_seq); + for (i=0; i <= core_if->dev_if->num_in_eps; i++) { + DWC_DEBUGPL(DBG_PCDV, "%2d\n", core_if->nextep_seq[i]); + } + } + + if (ep->is_in == 1) + depctl.b.txfnum = 0; + + if (core_if->dma_desc_enable) + depctl.b.epdis = 1; + + DWC_WRITE_REG32(addr, depctl.d32); + depctl.d32 = DWC_READ_REG32(addr); + if (core_if->dma_enable && ep->type == DWC_OTG_EP_TYPE_ISOC + && depctl.b.epena) { + depctl_data_t depctl = {.d32 = 0}; + if (ep->is_in) { + diepint_data_t diepint = {.d32 = 0}; + + depctl.b.snak = 1; + DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[ep->num]-> + diepctl, depctl.d32); + do { + dwc_udelay(10); + diepint.d32 = + DWC_READ_REG32(&core_if-> + dev_if->in_ep_regs[ep->num]-> + diepint); + } while (!diepint.b.inepnakeff); + diepint.b.inepnakeff = 1; + DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[ep->num]-> + diepint, diepint.d32); + depctl.d32 = 0; + depctl.b.epdis = 1; + DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[ep->num]-> + diepctl, depctl.d32); + do { + dwc_udelay(10); + diepint.d32 = + DWC_READ_REG32(&core_if-> + dev_if->in_ep_regs[ep->num]-> + diepint); + } while (!diepint.b.epdisabled); + diepint.b.epdisabled = 1; + DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[ep->num]-> + diepint, diepint.d32); + } else { + dctl_data_t dctl = {.d32 = 0}; + gintmsk_data_t gintsts = {.d32 = 0}; + doepint_data_t doepint = {.d32 = 0}; + dctl.b.sgoutnak = 1; + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs-> + dctl, 0, dctl.d32); + do { + dwc_udelay(10); + gintsts.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintsts); + } while (!gintsts.b.goutnakeff); + gintsts.d32 = 0; + gintsts.b.goutnakeff = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32); + + depctl.d32 = 0; + depctl.b.epdis = 1; + depctl.b.snak = 1; + DWC_WRITE_REG32(&core_if->dev_if->out_ep_regs[ep->num]->doepctl, depctl.d32); + do + { + dwc_udelay(10); + doepint.d32 = DWC_READ_REG32(&core_if->dev_if-> + out_ep_regs[ep->num]->doepint); + } while (!doepint.b.epdisabled); + + doepint.b.epdisabled = 1; + DWC_WRITE_REG32(&core_if->dev_if->out_ep_regs[ep->num]->doepint, doepint.d32); + + dctl.d32 = 0; + dctl.b.cgoutnak = 1; + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, 0, dctl.d32); + } + } + + /* Disable the Interrupt for this EP */ + if (core_if->multiproc_int_enable) { + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->deachintmsk, + daintmsk.d32, 0); + + if (ep->is_in == 1) { + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs-> + diepeachintmsk[ep->num], 0); + } else { + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs-> + doepeachintmsk[ep->num], 0); + } + } else { + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->daintmsk, + daintmsk.d32, 0); + } + +} + +/** + * This function initializes dma descriptor chain. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to start the transfer on. + */ +static void init_dma_desc_chain(dwc_otg_core_if_t * core_if, dwc_ep_t * ep) +{ + dwc_otg_dev_dma_desc_t *dma_desc; + uint32_t offset; + uint32_t xfer_est; + int i; + unsigned maxxfer_local, total_len; + + if (!ep->is_in && ep->type == DWC_OTG_EP_TYPE_INTR && + (ep->maxpacket%4)) { + maxxfer_local = ep->maxpacket; + total_len = ep->xfer_len; + } else { + maxxfer_local = ep->maxxfer; + total_len = ep->total_len; + } + + ep->desc_cnt = (total_len / maxxfer_local) + + ((total_len % maxxfer_local) ? 1 : 0); + + if (!ep->desc_cnt) + ep->desc_cnt = 1; + + if (ep->desc_cnt > MAX_DMA_DESC_CNT) + ep->desc_cnt = MAX_DMA_DESC_CNT; + + dma_desc = ep->desc_addr; + if (maxxfer_local == ep->maxpacket) { + if ((total_len % maxxfer_local) && + (total_len/maxxfer_local < MAX_DMA_DESC_CNT)) { + xfer_est = (ep->desc_cnt - 1) * maxxfer_local + + (total_len % maxxfer_local); + } else + xfer_est = ep->desc_cnt * maxxfer_local; + } else + xfer_est = total_len; + offset = 0; + for (i = 0; i < ep->desc_cnt; ++i) { + /** DMA Descriptor Setup */ + if (xfer_est > maxxfer_local) { + dma_desc->status.b.bs = BS_HOST_BUSY; + dma_desc->status.b.l = 0; + dma_desc->status.b.ioc = 0; + dma_desc->status.b.sp = 0; + dma_desc->status.b.bytes = maxxfer_local; + dma_desc->buf = ep->dma_addr + offset; + dma_desc->status.b.sts = 0; + dma_desc->status.b.bs = BS_HOST_READY; + + xfer_est -= maxxfer_local; + offset += maxxfer_local; + } else { + dma_desc->status.b.bs = BS_HOST_BUSY; + dma_desc->status.b.l = 1; + dma_desc->status.b.ioc = 1; + if (ep->is_in) { + dma_desc->status.b.sp = + (xfer_est % + ep->maxpacket) ? 1 : ((ep-> + sent_zlp) ? 1 : 0); + dma_desc->status.b.bytes = xfer_est; + } else { + if (maxxfer_local == ep->maxpacket) + dma_desc->status.b.bytes = xfer_est; + else + dma_desc->status.b.bytes = + xfer_est + ((4 - (xfer_est & 0x3)) & 0x3); + } + + dma_desc->buf = ep->dma_addr + offset; + dma_desc->status.b.sts = 0; + dma_desc->status.b.bs = BS_HOST_READY; + } + dma_desc++; + } +} +/** + * This function is called when to write ISOC data into appropriate dedicated + * periodic FIFO. + */ +static int32_t write_isoc_tx_fifo(dwc_otg_core_if_t * core_if, dwc_ep_t * dwc_ep) +{ + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + dwc_otg_dev_in_ep_regs_t *ep_regs; + dtxfsts_data_t txstatus = {.d32 = 0 }; + uint32_t len = 0; + int epnum = dwc_ep->num; + int dwords; + + DWC_DEBUGPL(DBG_PCD, "Dedicated TxFifo Empty: %d \n", epnum); + + ep_regs = core_if->dev_if->in_ep_regs[epnum]; + + len = dwc_ep->xfer_len - dwc_ep->xfer_count; + + if (len > dwc_ep->maxpacket) { + len = dwc_ep->maxpacket; + } + + dwords = (len + 3) / 4; + + /* While there is space in the queue and space in the FIFO and + * More data to tranfer, Write packets to the Tx FIFO */ + txstatus.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->dtxfsts); + DWC_DEBUGPL(DBG_PCDV, "b4 dtxfsts[%d]=0x%08x\n", epnum, txstatus.d32); + + while (txstatus.b.txfspcavail > dwords && + dwc_ep->xfer_count < dwc_ep->xfer_len && dwc_ep->xfer_len != 0) { + /* Write the FIFO */ + dwc_otg_ep_write_packet(core_if, dwc_ep, 0); + + len = dwc_ep->xfer_len - dwc_ep->xfer_count; + if (len > dwc_ep->maxpacket) { + len = dwc_ep->maxpacket; + } + + dwords = (len + 3) / 4; + txstatus.d32 = + DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->dtxfsts); + DWC_DEBUGPL(DBG_PCDV, "dtxfsts[%d]=0x%08x\n", epnum, + txstatus.d32); + } + + DWC_DEBUGPL(DBG_PCDV, "b4 dtxfsts[%d]=0x%08x\n", epnum, + DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->dtxfsts)); + + return 1; +} +/** + * This function does the setup for a data transfer for an EP and + * starts the transfer. For an IN transfer, the packets will be + * loaded into the appropriate Tx FIFO in the ISR. For OUT transfers, + * the packets are unloaded from the Rx FIFO in the ISR. the ISR. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to start the transfer on. + */ + +void dwc_otg_ep_start_transfer(dwc_otg_core_if_t * core_if, dwc_ep_t * ep) +{ + depctl_data_t depctl; + deptsiz_data_t deptsiz; + gintmsk_data_t intr_mask = {.d32 = 0 }; + + DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s()\n", __func__); + DWC_DEBUGPL(DBG_PCD, "ep%d-%s xfer_len=%d xfer_cnt=%d " + "xfer_buff=%p start_xfer_buff=%p, total_len = %d\n", + ep->num, (ep->is_in ? "IN" : "OUT"), ep->xfer_len, + ep->xfer_count, ep->xfer_buff, ep->start_xfer_buff, + ep->total_len); + /* IN endpoint */ + if (ep->is_in == 1) { + dwc_otg_dev_in_ep_regs_t *in_regs = + core_if->dev_if->in_ep_regs[ep->num]; + + gnptxsts_data_t gtxstatus; + + gtxstatus.d32 = + DWC_READ_REG32(&core_if->core_global_regs->gnptxsts); + + if (core_if->en_multiple_tx_fifo == 0 + && gtxstatus.b.nptxqspcavail == 0 && !core_if->dma_enable) { +#ifdef DEBUG + DWC_PRINTF("TX Queue Full (0x%0x)\n", gtxstatus.d32); +#endif + return; + } + + depctl.d32 = DWC_READ_REG32(&(in_regs->diepctl)); + deptsiz.d32 = DWC_READ_REG32(&(in_regs->dieptsiz)); + + if (ep->maxpacket > ep->maxxfer / MAX_PKT_CNT) + ep->xfer_len += (ep->maxxfer < (ep->total_len - ep->xfer_len)) ? + ep->maxxfer : (ep->total_len - ep->xfer_len); + else + ep->xfer_len += (MAX_PKT_CNT * ep->maxpacket < (ep->total_len - ep->xfer_len)) ? + MAX_PKT_CNT * ep->maxpacket : (ep->total_len - ep->xfer_len); + + + /* Zero Length Packet? */ + if ((ep->xfer_len - ep->xfer_count) == 0) { + deptsiz.b.xfersize = 0; + deptsiz.b.pktcnt = 1; + } else { + /* Program the transfer size and packet count + * as follows: xfersize = N * maxpacket + + * short_packet pktcnt = N + (short_packet + * exist ? 1 : 0) + */ + deptsiz.b.xfersize = ep->xfer_len - ep->xfer_count; + deptsiz.b.pktcnt = + (ep->xfer_len - ep->xfer_count - 1 + + ep->maxpacket) / ep->maxpacket; + if (deptsiz.b.pktcnt > MAX_PKT_CNT) { + deptsiz.b.pktcnt = MAX_PKT_CNT; + deptsiz.b.xfersize = deptsiz.b.pktcnt * ep->maxpacket; + } + if (ep->type == DWC_OTG_EP_TYPE_ISOC) + deptsiz.b.mc = deptsiz.b.pktcnt; + } + + /* Write the DMA register */ + if (core_if->dma_enable) { + if (core_if->dma_desc_enable == 0) { + if (ep->type != DWC_OTG_EP_TYPE_ISOC) + deptsiz.b.mc = 1; + DWC_WRITE_REG32(&in_regs->dieptsiz, + deptsiz.d32); + DWC_WRITE_REG32(&(in_regs->diepdma), + (uint32_t) ep->dma_addr); + } else { +#ifdef DWC_UTE_CFI + /* The descriptor chain should be already initialized by now */ + if (ep->buff_mode != BM_STANDARD) { + DWC_WRITE_REG32(&in_regs->diepdma, + ep->descs_dma_addr); + } else { +#endif + init_dma_desc_chain(core_if, ep); + /** DIEPDMAn Register write */ + DWC_WRITE_REG32(&in_regs->diepdma, + ep->dma_desc_addr); +#ifdef DWC_UTE_CFI + } +#endif + } + } else { + DWC_WRITE_REG32(&in_regs->dieptsiz, deptsiz.d32); + if (ep->type != DWC_OTG_EP_TYPE_ISOC) { + /** + * Enable the Non-Periodic Tx FIFO empty interrupt, + * or the Tx FIFO epmty interrupt in dedicated Tx FIFO mode, + * the data will be written into the fifo by the ISR. + */ + if (core_if->en_multiple_tx_fifo == 0) { + intr_mask.b.nptxfempty = 1; + DWC_MODIFY_REG32 + (&core_if->core_global_regs->gintmsk, + intr_mask.d32, intr_mask.d32); + } else { + /* Enable the Tx FIFO Empty Interrupt for this EP */ + if (ep->xfer_len > 0) { + uint32_t fifoemptymsk = 0; + fifoemptymsk = 1 << ep->num; + DWC_MODIFY_REG32 + (&core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk, + 0, fifoemptymsk); + + } + } + } else { + write_isoc_tx_fifo(core_if, ep); + } + } + if (!core_if->core_params->en_multiple_tx_fifo && core_if->dma_enable) + depctl.b.nextep = core_if->nextep_seq[ep->num]; + + if (ep->type == DWC_OTG_EP_TYPE_ISOC) { + dsts_data_t dsts = {.d32 = 0}; + if (ep->bInterval == 1) { + dsts.d32 = + DWC_READ_REG32(&core_if->dev_if-> + dev_global_regs->dsts); + ep->frame_num = dsts.b.soffn + ep->bInterval; + if (ep->frame_num > 0x3FFF) { + ep->frm_overrun = 1; + ep->frame_num &= 0x3FFF; + } else + ep->frm_overrun = 0; + if (ep->frame_num & 0x1) { + depctl.b.setd1pid = 1; + } else { + depctl.b.setd0pid = 1; + } + } + } + /* EP enable, IN data in FIFO */ + depctl.b.cnak = 1; + depctl.b.epena = 1; + DWC_WRITE_REG32(&in_regs->diepctl, depctl.d32); + + } else { + /* OUT endpoint */ + dwc_otg_dev_out_ep_regs_t *out_regs = + core_if->dev_if->out_ep_regs[ep->num]; + + depctl.d32 = DWC_READ_REG32(&(out_regs->doepctl)); + deptsiz.d32 = DWC_READ_REG32(&(out_regs->doeptsiz)); + + if (!core_if->dma_desc_enable) { + if (ep->maxpacket > ep->maxxfer / MAX_PKT_CNT) + ep->xfer_len += (ep->maxxfer < (ep->total_len - ep->xfer_len)) ? + ep->maxxfer : (ep->total_len - ep->xfer_len); + else + ep->xfer_len += (MAX_PKT_CNT * ep->maxpacket < (ep->total_len + - ep->xfer_len)) ? MAX_PKT_CNT * ep->maxpacket : (ep->total_len - ep->xfer_len); + } + + /* Program the transfer size and packet count as follows: + * + * pktcnt = N + * xfersize = N * maxpacket + */ + if ((ep->xfer_len - ep->xfer_count) == 0) { + /* Zero Length Packet */ + deptsiz.b.xfersize = ep->maxpacket; + deptsiz.b.pktcnt = 1; + } else { + deptsiz.b.pktcnt = + (ep->xfer_len - ep->xfer_count + + (ep->maxpacket - 1)) / ep->maxpacket; + if (deptsiz.b.pktcnt > MAX_PKT_CNT) { + deptsiz.b.pktcnt = MAX_PKT_CNT; + } + if (!core_if->dma_desc_enable) { + ep->xfer_len = + deptsiz.b.pktcnt * ep->maxpacket + ep->xfer_count; + } + deptsiz.b.xfersize = ep->xfer_len - ep->xfer_count; + } + + DWC_DEBUGPL(DBG_PCDV, "ep%d xfersize=%d pktcnt=%d\n", + ep->num, deptsiz.b.xfersize, deptsiz.b.pktcnt); + + if (core_if->dma_enable) { + if (!core_if->dma_desc_enable) { + DWC_WRITE_REG32(&out_regs->doeptsiz, + deptsiz.d32); + + DWC_WRITE_REG32(&(out_regs->doepdma), + (uint32_t) ep->dma_addr); + } else { +#ifdef DWC_UTE_CFI + /* The descriptor chain should be already initialized by now */ + if (ep->buff_mode != BM_STANDARD) { + DWC_WRITE_REG32(&out_regs->doepdma, + ep->descs_dma_addr); + } else { +#endif + /** This is used for interrupt out transfers*/ + if (!ep->xfer_len) + ep->xfer_len = ep->total_len; + init_dma_desc_chain(core_if, ep); + + if (core_if->core_params->dev_out_nak) { + if (ep->type == DWC_OTG_EP_TYPE_BULK) { + deptsiz.b.pktcnt = (ep->total_len + + (ep->maxpacket - 1)) / ep->maxpacket; + deptsiz.b.xfersize = ep->total_len; + /* Remember initial value of doeptsiz */ + core_if->start_doeptsiz_val[ep->num] = deptsiz.d32; + DWC_WRITE_REG32(&out_regs->doeptsiz, + deptsiz.d32); + } + } + /** DOEPDMAn Register write */ + DWC_WRITE_REG32(&out_regs->doepdma, + ep->dma_desc_addr); +#ifdef DWC_UTE_CFI + } +#endif + } + } else { + DWC_WRITE_REG32(&out_regs->doeptsiz, deptsiz.d32); + } + + if (ep->type == DWC_OTG_EP_TYPE_ISOC) { + dsts_data_t dsts = {.d32 = 0}; + if (ep->bInterval == 1) { + dsts.d32 = + DWC_READ_REG32(&core_if->dev_if-> + dev_global_regs->dsts); + ep->frame_num = dsts.b.soffn + ep->bInterval; + if (ep->frame_num > 0x3FFF) { + ep->frm_overrun = 1; + ep->frame_num &= 0x3FFF; + } else + ep->frm_overrun = 0; + + if (ep->frame_num & 0x1) { + depctl.b.setd1pid = 1; + } else { + depctl.b.setd0pid = 1; + } + } + } + + /* EP enable */ + depctl.b.cnak = 1; + depctl.b.epena = 1; + + DWC_WRITE_REG32(&out_regs->doepctl, depctl.d32); + + DWC_DEBUGPL(DBG_PCD, "DOEPCTL=%08x DOEPTSIZ=%08x\n", + DWC_READ_REG32(&out_regs->doepctl), + DWC_READ_REG32(&out_regs->doeptsiz)); + DWC_DEBUGPL(DBG_PCD, "DAINTMSK=%08x GINTMSK=%08x\n", + DWC_READ_REG32(&core_if->dev_if->dev_global_regs-> + daintmsk), + DWC_READ_REG32(&core_if->core_global_regs-> + gintmsk)); + + /* Timer is scheduling only for out bulk transfers for + * "Device DDMA OUT NAK Enhancement" feature to inform user + * about received data payload in case of timeout + */ + if (core_if->core_params->dev_out_nak) { + if (ep->type == DWC_OTG_EP_TYPE_BULK) { + core_if->ep_xfer_info[ep->num].core_if = core_if; + core_if->ep_xfer_info[ep->num].ep = ep; + core_if->ep_xfer_info[ep->num].state = 1; + + /* Start a timer for this transfer. */ + DWC_TIMER_SCHEDULE(core_if->ep_xfer_timer[ep->num], 10000); + } + } + } +} + +/** + * This function setup a zero length transfer in Buffer DMA and + * Slave modes for usb requests with zero field set + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to start the transfer on. + * + */ +void dwc_otg_ep_start_zl_transfer(dwc_otg_core_if_t * core_if, dwc_ep_t * ep) +{ + + depctl_data_t depctl; + deptsiz_data_t deptsiz; + gintmsk_data_t intr_mask = {.d32 = 0 }; + + DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s()\n", __func__); + DWC_PRINTF("zero length transfer is called\n"); + + /* IN endpoint */ + if (ep->is_in == 1) { + dwc_otg_dev_in_ep_regs_t *in_regs = + core_if->dev_if->in_ep_regs[ep->num]; + + depctl.d32 = DWC_READ_REG32(&(in_regs->diepctl)); + deptsiz.d32 = DWC_READ_REG32(&(in_regs->dieptsiz)); + + deptsiz.b.xfersize = 0; + deptsiz.b.pktcnt = 1; + + /* Write the DMA register */ + if (core_if->dma_enable) { + if (core_if->dma_desc_enable == 0) { + deptsiz.b.mc = 1; + DWC_WRITE_REG32(&in_regs->dieptsiz, + deptsiz.d32); + DWC_WRITE_REG32(&(in_regs->diepdma), + (uint32_t) ep->dma_addr); + } + } else { + DWC_WRITE_REG32(&in_regs->dieptsiz, deptsiz.d32); + /** + * Enable the Non-Periodic Tx FIFO empty interrupt, + * or the Tx FIFO epmty interrupt in dedicated Tx FIFO mode, + * the data will be written into the fifo by the ISR. + */ + if (core_if->en_multiple_tx_fifo == 0) { + intr_mask.b.nptxfempty = 1; + DWC_MODIFY_REG32(&core_if-> + core_global_regs->gintmsk, + intr_mask.d32, intr_mask.d32); + } else { + /* Enable the Tx FIFO Empty Interrupt for this EP */ + if (ep->xfer_len > 0) { + uint32_t fifoemptymsk = 0; + fifoemptymsk = 1 << ep->num; + DWC_MODIFY_REG32(&core_if-> + dev_if->dev_global_regs->dtknqr4_fifoemptymsk, + 0, fifoemptymsk); + } + } + } + + if (!core_if->core_params->en_multiple_tx_fifo && core_if->dma_enable) + depctl.b.nextep = core_if->nextep_seq[ep->num]; + /* EP enable, IN data in FIFO */ + depctl.b.cnak = 1; + depctl.b.epena = 1; + DWC_WRITE_REG32(&in_regs->diepctl, depctl.d32); + + } else { + /* OUT endpoint */ + dwc_otg_dev_out_ep_regs_t *out_regs = + core_if->dev_if->out_ep_regs[ep->num]; + + depctl.d32 = DWC_READ_REG32(&(out_regs->doepctl)); + deptsiz.d32 = DWC_READ_REG32(&(out_regs->doeptsiz)); + + /* Zero Length Packet */ + deptsiz.b.xfersize = ep->maxpacket; + deptsiz.b.pktcnt = 1; + + if (core_if->dma_enable) { + if (!core_if->dma_desc_enable) { + DWC_WRITE_REG32(&out_regs->doeptsiz, + deptsiz.d32); + + DWC_WRITE_REG32(&(out_regs->doepdma), + (uint32_t) ep->dma_addr); + } + } else { + DWC_WRITE_REG32(&out_regs->doeptsiz, deptsiz.d32); + } + + /* EP enable */ + depctl.b.cnak = 1; + depctl.b.epena = 1; + + DWC_WRITE_REG32(&out_regs->doepctl, depctl.d32); + + } +} + +/** + * This function does the setup for a data transfer for EP0 and starts + * the transfer. For an IN transfer, the packets will be loaded into + * the appropriate Tx FIFO in the ISR. For OUT transfers, the packets are + * unloaded from the Rx FIFO in the ISR. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP0 data. + */ +void dwc_otg_ep0_start_transfer(dwc_otg_core_if_t * core_if, dwc_ep_t * ep) +{ + depctl_data_t depctl; + deptsiz0_data_t deptsiz; + gintmsk_data_t intr_mask = {.d32 = 0 }; + dwc_otg_dev_dma_desc_t *dma_desc; + + DWC_DEBUGPL(DBG_PCD, "ep%d-%s xfer_len=%d xfer_cnt=%d " + "xfer_buff=%p start_xfer_buff=%p \n", + ep->num, (ep->is_in ? "IN" : "OUT"), ep->xfer_len, + ep->xfer_count, ep->xfer_buff, ep->start_xfer_buff); + + ep->total_len = ep->xfer_len; + + /* IN endpoint */ + if (ep->is_in == 1) { + dwc_otg_dev_in_ep_regs_t *in_regs = + core_if->dev_if->in_ep_regs[0]; + + gnptxsts_data_t gtxstatus; + + if (core_if->snpsid >= OTG_CORE_REV_3_00a) { + depctl.d32 = DWC_READ_REG32(&in_regs->diepctl); + if (depctl.b.epena) + return; + } + + gtxstatus.d32 = + DWC_READ_REG32(&core_if->core_global_regs->gnptxsts); + + /* If dedicated FIFO every time flush fifo before enable ep*/ + if (core_if->en_multiple_tx_fifo && core_if->snpsid >= OTG_CORE_REV_3_00a) + dwc_otg_flush_tx_fifo(core_if, ep->tx_fifo_num); + + if (core_if->en_multiple_tx_fifo == 0 + && gtxstatus.b.nptxqspcavail == 0 + && !core_if->dma_enable) { +#ifdef DEBUG + deptsiz.d32 = DWC_READ_REG32(&in_regs->dieptsiz); + DWC_DEBUGPL(DBG_PCD, "DIEPCTL0=%0x\n", + DWC_READ_REG32(&in_regs->diepctl)); + DWC_DEBUGPL(DBG_PCD, "DIEPTSIZ0=%0x (sz=%d, pcnt=%d)\n", + deptsiz.d32, + deptsiz.b.xfersize, deptsiz.b.pktcnt); + DWC_PRINTF("TX Queue or FIFO Full (0x%0x)\n", + gtxstatus.d32); +#endif + return; + } + + depctl.d32 = DWC_READ_REG32(&in_regs->diepctl); + deptsiz.d32 = DWC_READ_REG32(&in_regs->dieptsiz); + + /* Zero Length Packet? */ + if (ep->xfer_len == 0) { + deptsiz.b.xfersize = 0; + deptsiz.b.pktcnt = 1; + } else { + /* Program the transfer size and packet count + * as follows: xfersize = N * maxpacket + + * short_packet pktcnt = N + (short_packet + * exist ? 1 : 0) + */ + if (ep->xfer_len > ep->maxpacket) { + ep->xfer_len = ep->maxpacket; + deptsiz.b.xfersize = ep->maxpacket; + } else { + deptsiz.b.xfersize = ep->xfer_len; + } + deptsiz.b.pktcnt = 1; + + } + DWC_DEBUGPL(DBG_PCDV, + "IN len=%d xfersize=%d pktcnt=%d [%08x]\n", + ep->xfer_len, deptsiz.b.xfersize, deptsiz.b.pktcnt, + deptsiz.d32); + + /* Write the DMA register */ + if (core_if->dma_enable) { + if (core_if->dma_desc_enable == 0) { + DWC_WRITE_REG32(&in_regs->dieptsiz, + deptsiz.d32); + + DWC_WRITE_REG32(&(in_regs->diepdma), + (uint32_t) ep->dma_addr); + } else { + dma_desc = core_if->dev_if->in_desc_addr; + + /** DMA Descriptor Setup */ + dma_desc->status.b.bs = BS_HOST_BUSY; + dma_desc->status.b.l = 1; + dma_desc->status.b.ioc = 1; + dma_desc->status.b.sp = + (ep->xfer_len == ep->maxpacket) ? 0 : 1; + dma_desc->status.b.bytes = ep->xfer_len; + dma_desc->buf = ep->dma_addr; + dma_desc->status.b.sts = 0; + dma_desc->status.b.bs = BS_HOST_READY; + + /** DIEPDMA0 Register write */ + DWC_WRITE_REG32(&in_regs->diepdma, + core_if-> + dev_if->dma_in_desc_addr); + } + } else { + DWC_WRITE_REG32(&in_regs->dieptsiz, deptsiz.d32); + } + + if (!core_if->core_params->en_multiple_tx_fifo && core_if->dma_enable) + depctl.b.nextep = core_if->nextep_seq[ep->num]; + /* EP enable, IN data in FIFO */ + depctl.b.cnak = 1; + depctl.b.epena = 1; + DWC_WRITE_REG32(&in_regs->diepctl, depctl.d32); + + /** + * Enable the Non-Periodic Tx FIFO empty interrupt, the + * data will be written into the fifo by the ISR. + */ + if (!core_if->dma_enable) { + if (core_if->en_multiple_tx_fifo == 0) { + intr_mask.b.nptxfempty = 1; + DWC_MODIFY_REG32(&core_if-> + core_global_regs->gintmsk, + intr_mask.d32, intr_mask.d32); + } else { + /* Enable the Tx FIFO Empty Interrupt for this EP */ + if (ep->xfer_len > 0) { + uint32_t fifoemptymsk = 0; + fifoemptymsk |= 1 << ep->num; + DWC_MODIFY_REG32(&core_if-> + dev_if->dev_global_regs->dtknqr4_fifoemptymsk, + 0, fifoemptymsk); + } + } + } + } else { + /* OUT endpoint */ + dwc_otg_dev_out_ep_regs_t *out_regs = + core_if->dev_if->out_ep_regs[0]; + + depctl.d32 = DWC_READ_REG32(&out_regs->doepctl); + deptsiz.d32 = DWC_READ_REG32(&out_regs->doeptsiz); + + /* Program the transfer size and packet count as follows: + * xfersize = N * (maxpacket + 4 - (maxpacket % 4)) + * pktcnt = N */ + /* Zero Length Packet */ + deptsiz.b.xfersize = ep->maxpacket; + deptsiz.b.pktcnt = 1; + if (core_if->snpsid >= OTG_CORE_REV_3_00a) + deptsiz.b.supcnt = 3; + + DWC_DEBUGPL(DBG_PCDV, "len=%d xfersize=%d pktcnt=%d\n", + ep->xfer_len, deptsiz.b.xfersize, deptsiz.b.pktcnt); + + if (core_if->dma_enable) { + if (!core_if->dma_desc_enable) { + DWC_WRITE_REG32(&out_regs->doeptsiz, + deptsiz.d32); + + DWC_WRITE_REG32(&(out_regs->doepdma), + (uint32_t) ep->dma_addr); + } else { + dma_desc = core_if->dev_if->out_desc_addr; + + /** DMA Descriptor Setup */ + dma_desc->status.b.bs = BS_HOST_BUSY; + if (core_if->snpsid >= OTG_CORE_REV_3_00a) { + dma_desc->status.b.mtrf = 0; + dma_desc->status.b.sr = 0; + } + dma_desc->status.b.l = 1; + dma_desc->status.b.ioc = 1; + dma_desc->status.b.bytes = ep->maxpacket; + dma_desc->buf = ep->dma_addr; + dma_desc->status.b.sts = 0; + dma_desc->status.b.bs = BS_HOST_READY; + + /** DOEPDMA0 Register write */ + DWC_WRITE_REG32(&out_regs->doepdma, + core_if->dev_if-> + dma_out_desc_addr); + } + } else { + DWC_WRITE_REG32(&out_regs->doeptsiz, deptsiz.d32); + } + + /* EP enable */ + depctl.b.cnak = 1; + depctl.b.epena = 1; + DWC_WRITE_REG32(&(out_regs->doepctl), depctl.d32); + } +} + +/** + * This function continues control IN transfers started by + * dwc_otg_ep0_start_transfer, when the transfer does not fit in a + * single packet. NOTE: The DIEPCTL0/DOEPCTL0 registers only have one + * bit for the packet count. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP0 data. + */ +void dwc_otg_ep0_continue_transfer(dwc_otg_core_if_t * core_if, dwc_ep_t * ep) +{ + depctl_data_t depctl; + deptsiz0_data_t deptsiz; + gintmsk_data_t intr_mask = {.d32 = 0 }; + dwc_otg_dev_dma_desc_t *dma_desc; + + if (ep->is_in == 1) { + dwc_otg_dev_in_ep_regs_t *in_regs = + core_if->dev_if->in_ep_regs[0]; + gnptxsts_data_t tx_status = {.d32 = 0 }; + + tx_status.d32 = + DWC_READ_REG32(&core_if->core_global_regs->gnptxsts); + /** @todo Should there be check for room in the Tx + * Status Queue. If not remove the code above this comment. */ + + depctl.d32 = DWC_READ_REG32(&in_regs->diepctl); + deptsiz.d32 = DWC_READ_REG32(&in_regs->dieptsiz); + + /* Program the transfer size and packet count + * as follows: xfersize = N * maxpacket + + * short_packet pktcnt = N + (short_packet + * exist ? 1 : 0) + */ + + if (core_if->dma_desc_enable == 0) { + deptsiz.b.xfersize = + (ep->total_len - ep->xfer_count) > + ep->maxpacket ? ep->maxpacket : (ep->total_len - + ep->xfer_count); + deptsiz.b.pktcnt = 1; + if (core_if->dma_enable == 0) { + ep->xfer_len += deptsiz.b.xfersize; + } else { + ep->xfer_len = deptsiz.b.xfersize; + } + DWC_WRITE_REG32(&in_regs->dieptsiz, deptsiz.d32); + } else { + ep->xfer_len = + (ep->total_len - ep->xfer_count) > + ep->maxpacket ? ep->maxpacket : (ep->total_len - + ep->xfer_count); + + dma_desc = core_if->dev_if->in_desc_addr; + + /** DMA Descriptor Setup */ + dma_desc->status.b.bs = BS_HOST_BUSY; + dma_desc->status.b.l = 1; + dma_desc->status.b.ioc = 1; + dma_desc->status.b.sp = + (ep->xfer_len == ep->maxpacket) ? 0 : 1; + dma_desc->status.b.bytes = ep->xfer_len; + dma_desc->buf = ep->dma_addr; + dma_desc->status.b.sts = 0; + dma_desc->status.b.bs = BS_HOST_READY; + + /** DIEPDMA0 Register write */ + DWC_WRITE_REG32(&in_regs->diepdma, + core_if->dev_if->dma_in_desc_addr); + } + + DWC_DEBUGPL(DBG_PCDV, + "IN len=%d xfersize=%d pktcnt=%d [%08x]\n", + ep->xfer_len, deptsiz.b.xfersize, deptsiz.b.pktcnt, + deptsiz.d32); + + /* Write the DMA register */ + if (core_if->hwcfg2.b.architecture == DWC_INT_DMA_ARCH) { + if (core_if->dma_desc_enable == 0) + DWC_WRITE_REG32(&(in_regs->diepdma), + (uint32_t) ep->dma_addr); + } + if (!core_if->core_params->en_multiple_tx_fifo && core_if->dma_enable) + depctl.b.nextep = core_if->nextep_seq[ep->num]; + /* EP enable, IN data in FIFO */ + depctl.b.cnak = 1; + depctl.b.epena = 1; + DWC_WRITE_REG32(&in_regs->diepctl, depctl.d32); + + /** + * Enable the Non-Periodic Tx FIFO empty interrupt, the + * data will be written into the fifo by the ISR. + */ + if (!core_if->dma_enable) { + if (core_if->en_multiple_tx_fifo == 0) { + /* First clear it from GINTSTS */ + intr_mask.b.nptxfempty = 1; + DWC_MODIFY_REG32(&core_if-> + core_global_regs->gintmsk, + intr_mask.d32, intr_mask.d32); + + } else { + /* Enable the Tx FIFO Empty Interrupt for this EP */ + if (ep->xfer_len > 0) { + uint32_t fifoemptymsk = 0; + fifoemptymsk |= 1 << ep->num; + DWC_MODIFY_REG32(&core_if-> + dev_if->dev_global_regs->dtknqr4_fifoemptymsk, + 0, fifoemptymsk); + } + } + } + } else { + dwc_otg_dev_out_ep_regs_t *out_regs = + core_if->dev_if->out_ep_regs[0]; + + depctl.d32 = DWC_READ_REG32(&out_regs->doepctl); + deptsiz.d32 = DWC_READ_REG32(&out_regs->doeptsiz); + + /* Program the transfer size and packet count + * as follows: xfersize = N * maxpacket + + * short_packet pktcnt = N + (short_packet + * exist ? 1 : 0) + */ + deptsiz.b.xfersize = ep->maxpacket; + deptsiz.b.pktcnt = 1; + + if (core_if->dma_desc_enable == 0) { + DWC_WRITE_REG32(&out_regs->doeptsiz, deptsiz.d32); + } else { + dma_desc = core_if->dev_if->out_desc_addr; + + /** DMA Descriptor Setup */ + dma_desc->status.b.bs = BS_HOST_BUSY; + dma_desc->status.b.l = 1; + dma_desc->status.b.ioc = 1; + dma_desc->status.b.bytes = ep->maxpacket; + dma_desc->buf = ep->dma_addr; + dma_desc->status.b.sts = 0; + dma_desc->status.b.bs = BS_HOST_READY; + + /** DOEPDMA0 Register write */ + DWC_WRITE_REG32(&out_regs->doepdma, + core_if->dev_if->dma_out_desc_addr); + } + + DWC_DEBUGPL(DBG_PCDV, + "IN len=%d xfersize=%d pktcnt=%d [%08x]\n", + ep->xfer_len, deptsiz.b.xfersize, deptsiz.b.pktcnt, + deptsiz.d32); + + /* Write the DMA register */ + if (core_if->hwcfg2.b.architecture == DWC_INT_DMA_ARCH) { + if (core_if->dma_desc_enable == 0) + DWC_WRITE_REG32(&(out_regs->doepdma), + (uint32_t) ep->dma_addr); + + } + + /* EP enable, IN data in FIFO */ + depctl.b.cnak = 1; + depctl.b.epena = 1; + DWC_WRITE_REG32(&out_regs->doepctl, depctl.d32); + + } +} + +#ifdef DEBUG +void dump_msg(const u8 * buf, unsigned int length) +{ + unsigned int start, num, i; + char line[52], *p; + + if (length >= 512) + return; + start = 0; + while (length > 0) { + num = length < 16u ? length : 16u; + p = line; + for (i = 0; i < num; ++i) { + if (i == 8) + *p++ = ' '; + DWC_SPRINTF(p, " %02x", buf[i]); + p += 3; + } + *p = 0; + DWC_PRINTF("%6x: %s\n", start, line); + buf += num; + start += num; + length -= num; + } +} +#else +static inline void dump_msg(const u8 * buf, unsigned int length) +{ +} +#endif + +/** + * This function writes a packet into the Tx FIFO associated with the + * EP. For non-periodic EPs the non-periodic Tx FIFO is written. For + * periodic EPs the periodic Tx FIFO associated with the EP is written + * with all packets for the next micro-frame. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to write packet for. + * @param dma Indicates if DMA is being used. + */ +void dwc_otg_ep_write_packet(dwc_otg_core_if_t * core_if, dwc_ep_t * ep, + int dma) +{ + /** + * The buffer is padded to DWORD on a per packet basis in + * slave/dma mode if the MPS is not DWORD aligned. The last + * packet, if short, is also padded to a multiple of DWORD. + * + * ep->xfer_buff always starts DWORD aligned in memory and is a + * multiple of DWORD in length + * + * ep->xfer_len can be any number of bytes + * + * ep->xfer_count is a multiple of ep->maxpacket until the last + * packet + * + * FIFO access is DWORD */ + + uint32_t i; + uint32_t byte_count; + uint32_t dword_count; + uint32_t *fifo; + uint32_t *data_buff = (uint32_t *) ep->xfer_buff; + + DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s(%p,%p)\n", __func__, core_if, + ep); + if (ep->xfer_count >= ep->xfer_len) { + DWC_WARN("%s() No data for EP%d!!!\n", __func__, ep->num); + return; + } + + /* Find the byte length of the packet either short packet or MPS */ + if ((ep->xfer_len - ep->xfer_count) < ep->maxpacket) { + byte_count = ep->xfer_len - ep->xfer_count; + } else { + byte_count = ep->maxpacket; + } + + /* Find the DWORD length, padded by extra bytes as neccessary if MPS + * is not a multiple of DWORD */ + dword_count = (byte_count + 3) / 4; + +#ifdef VERBOSE + dump_msg(ep->xfer_buff, byte_count); +#endif + + /**@todo NGS Where are the Periodic Tx FIFO addresses + * intialized? What should this be? */ + + fifo = core_if->data_fifo[ep->num]; + + DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "fifo=%p buff=%p *p=%08x bc=%d\n", + fifo, data_buff, *data_buff, byte_count); + + if (!dma) { + for (i = 0; i < dword_count; i++, data_buff++) { + DWC_WRITE_REG32(fifo, *data_buff); + } + } + + ep->xfer_count += byte_count; + ep->xfer_buff += byte_count; + ep->dma_addr += byte_count; +} + +/** + * Set the EP STALL. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to set the stall on. + */ +void dwc_otg_ep_set_stall(dwc_otg_core_if_t * core_if, dwc_ep_t * ep) +{ + depctl_data_t depctl; + volatile uint32_t *depctl_addr; + + DWC_DEBUGPL(DBG_PCD, "%s ep%d-%s\n", __func__, ep->num, + (ep->is_in ? "IN" : "OUT")); + + if (ep->is_in == 1) { + depctl_addr = &(core_if->dev_if->in_ep_regs[ep->num]->diepctl); + depctl.d32 = DWC_READ_REG32(depctl_addr); + + /* set the disable and stall bits */ + if (depctl.b.epena) { + depctl.b.epdis = 1; + } + depctl.b.stall = 1; + DWC_WRITE_REG32(depctl_addr, depctl.d32); + } else { + depctl_addr = &(core_if->dev_if->out_ep_regs[ep->num]->doepctl); + depctl.d32 = DWC_READ_REG32(depctl_addr); + + /* set the stall bit */ + depctl.b.stall = 1; + DWC_WRITE_REG32(depctl_addr, depctl.d32); + } + + DWC_DEBUGPL(DBG_PCD, "DEPCTL=%0x\n", DWC_READ_REG32(depctl_addr)); + + return; +} + +/** + * Clear the EP STALL. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to clear stall from. + */ +void dwc_otg_ep_clear_stall(dwc_otg_core_if_t * core_if, dwc_ep_t * ep) +{ + depctl_data_t depctl; + volatile uint32_t *depctl_addr; + + DWC_DEBUGPL(DBG_PCD, "%s ep%d-%s\n", __func__, ep->num, + (ep->is_in ? "IN" : "OUT")); + + if (ep->is_in == 1) { + depctl_addr = &(core_if->dev_if->in_ep_regs[ep->num]->diepctl); + } else { + depctl_addr = &(core_if->dev_if->out_ep_regs[ep->num]->doepctl); + } + + depctl.d32 = DWC_READ_REG32(depctl_addr); + + /* clear the stall bits */ + depctl.b.stall = 0; + + /* + * USB Spec 9.4.5: For endpoints using data toggle, regardless + * of whether an endpoint has the Halt feature set, a + * ClearFeature(ENDPOINT_HALT) request always results in the + * data toggle being reinitialized to DATA0. + */ + if (ep->type == DWC_OTG_EP_TYPE_INTR || + ep->type == DWC_OTG_EP_TYPE_BULK) { + depctl.b.setd0pid = 1; /* DATA0 */ + } + + DWC_WRITE_REG32(depctl_addr, depctl.d32); + DWC_DEBUGPL(DBG_PCD, "DEPCTL=%0x\n", DWC_READ_REG32(depctl_addr)); + return; +} + +/** + * This function reads a packet from the Rx FIFO into the destination + * buffer. To read SETUP data use dwc_otg_read_setup_packet. + * + * @param core_if Programming view of DWC_otg controller. + * @param dest Destination buffer for the packet. + * @param bytes Number of bytes to copy to the destination. + */ +void dwc_otg_read_packet(dwc_otg_core_if_t * core_if, + uint8_t * dest, uint16_t bytes) +{ + int i; + int word_count = (bytes + 3) / 4; + + volatile uint32_t *fifo = core_if->data_fifo[0]; + uint32_t *data_buff = (uint32_t *) dest; + + /** + * @todo Account for the case where _dest is not dword aligned. This + * requires reading data from the FIFO into a uint32_t temp buffer, + * then moving it into the data buffer. + */ + + DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s(%p,%p,%d)\n", __func__, + core_if, dest, bytes); + + for (i = 0; i < word_count; i++, data_buff++) { + *data_buff = DWC_READ_REG32(fifo); + } + + return; +} + +/** + * This functions reads the device registers and prints them + * + * @param core_if Programming view of DWC_otg controller. + */ +void dwc_otg_dump_dev_registers(dwc_otg_core_if_t * core_if) +{ + int i; + volatile uint32_t *addr; + + DWC_PRINTF("Device Global Registers\n"); + addr = &core_if->dev_if->dev_global_regs->dcfg; + DWC_PRINTF("DCFG @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + addr = &core_if->dev_if->dev_global_regs->dctl; + DWC_PRINTF("DCTL @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + addr = &core_if->dev_if->dev_global_regs->dsts; + DWC_PRINTF("DSTS @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + addr = &core_if->dev_if->dev_global_regs->diepmsk; + DWC_PRINTF("DIEPMSK @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->dev_if->dev_global_regs->doepmsk; + DWC_PRINTF("DOEPMSK @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->dev_if->dev_global_regs->daint; + DWC_PRINTF("DAINT @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->dev_if->dev_global_regs->daintmsk; + DWC_PRINTF("DAINTMSK @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->dev_if->dev_global_regs->dtknqr1; + DWC_PRINTF("DTKNQR1 @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + if (core_if->hwcfg2.b.dev_token_q_depth > 6) { + addr = &core_if->dev_if->dev_global_regs->dtknqr2; + DWC_PRINTF("DTKNQR2 @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + } + + addr = &core_if->dev_if->dev_global_regs->dvbusdis; + DWC_PRINTF("DVBUSID @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + + addr = &core_if->dev_if->dev_global_regs->dvbuspulse; + DWC_PRINTF("DVBUSPULSE @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + + addr = &core_if->dev_if->dev_global_regs->dtknqr3_dthrctl; + DWC_PRINTF("DTKNQR3_DTHRCTL @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + + if (core_if->hwcfg2.b.dev_token_q_depth > 22) { + addr = &core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk; + DWC_PRINTF("DTKNQR4 @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + } + + addr = &core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk; + DWC_PRINTF("FIFOEMPMSK @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + + if (core_if->hwcfg2.b.multi_proc_int) { + + addr = &core_if->dev_if->dev_global_regs->deachint; + DWC_PRINTF("DEACHINT @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + addr = &core_if->dev_if->dev_global_regs->deachintmsk; + DWC_PRINTF("DEACHINTMSK @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + + for (i = 0; i <= core_if->dev_if->num_in_eps; i++) { + addr = + &core_if->dev_if-> + dev_global_regs->diepeachintmsk[i]; + DWC_PRINTF("DIEPEACHINTMSK[%d] @0x%08lX : 0x%08X\n", + i, (unsigned long)addr, + DWC_READ_REG32(addr)); + } + + for (i = 0; i <= core_if->dev_if->num_out_eps; i++) { + addr = + &core_if->dev_if-> + dev_global_regs->doepeachintmsk[i]; + DWC_PRINTF("DOEPEACHINTMSK[%d] @0x%08lX : 0x%08X\n", + i, (unsigned long)addr, + DWC_READ_REG32(addr)); + } + } + + for (i = 0; i <= core_if->dev_if->num_in_eps; i++) { + DWC_PRINTF("Device IN EP %d Registers\n", i); + addr = &core_if->dev_if->in_ep_regs[i]->diepctl; + DWC_PRINTF("DIEPCTL @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + addr = &core_if->dev_if->in_ep_regs[i]->diepint; + DWC_PRINTF("DIEPINT @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + addr = &core_if->dev_if->in_ep_regs[i]->dieptsiz; + DWC_PRINTF("DIETSIZ @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + addr = &core_if->dev_if->in_ep_regs[i]->diepdma; + DWC_PRINTF("DIEPDMA @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + addr = &core_if->dev_if->in_ep_regs[i]->dtxfsts; + DWC_PRINTF("DTXFSTS @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + addr = &core_if->dev_if->in_ep_regs[i]->diepdmab; + DWC_PRINTF("DIEPDMAB @0x%08lX : 0x%08X\n", + (unsigned long)addr, 0 /*DWC_READ_REG32(addr) */ ); + } + + for (i = 0; i <= core_if->dev_if->num_out_eps; i++) { + DWC_PRINTF("Device OUT EP %d Registers\n", i); + addr = &core_if->dev_if->out_ep_regs[i]->doepctl; + DWC_PRINTF("DOEPCTL @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + addr = &core_if->dev_if->out_ep_regs[i]->doepint; + DWC_PRINTF("DOEPINT @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + addr = &core_if->dev_if->out_ep_regs[i]->doeptsiz; + DWC_PRINTF("DOETSIZ @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + addr = &core_if->dev_if->out_ep_regs[i]->doepdma; + DWC_PRINTF("DOEPDMA @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + if (core_if->dma_enable) { /* Don't access this register in SLAVE mode */ + addr = &core_if->dev_if->out_ep_regs[i]->doepdmab; + DWC_PRINTF("DOEPDMAB @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + } + + } +} + +/** + * This functions reads the SPRAM and prints its content + * + * @param core_if Programming view of DWC_otg controller. + */ +void dwc_otg_dump_spram(dwc_otg_core_if_t * core_if) +{ + volatile uint8_t *addr, *start_addr, *end_addr; + + DWC_PRINTF("SPRAM Data:\n"); + start_addr = (void *)core_if->core_global_regs; + DWC_PRINTF("Base Address: 0x%8lX\n", (unsigned long)start_addr); + start_addr += 0x00028000; + end_addr = (void *)core_if->core_global_regs; + end_addr += 0x000280e0; + + for (addr = start_addr; addr < end_addr; addr += 16) { + DWC_PRINTF + ("0x%8lX:\t%2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X\n", + (unsigned long)addr, addr[0], addr[1], addr[2], addr[3], + addr[4], addr[5], addr[6], addr[7], addr[8], addr[9], + addr[10], addr[11], addr[12], addr[13], addr[14], addr[15] + ); + } + + return; +} + +/** + * This function reads the host registers and prints them + * + * @param core_if Programming view of DWC_otg controller. + */ +void dwc_otg_dump_host_registers(dwc_otg_core_if_t * core_if) +{ + int i; + volatile uint32_t *addr; + + DWC_PRINTF("Host Global Registers\n"); + addr = &core_if->host_if->host_global_regs->hcfg; + DWC_PRINTF("HCFG @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + addr = &core_if->host_if->host_global_regs->hfir; + DWC_PRINTF("HFIR @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + addr = &core_if->host_if->host_global_regs->hfnum; + DWC_PRINTF("HFNUM @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->host_if->host_global_regs->hptxsts; + DWC_PRINTF("HPTXSTS @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->host_if->host_global_regs->haint; + DWC_PRINTF("HAINT @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->host_if->host_global_regs->haintmsk; + DWC_PRINTF("HAINTMSK @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + if (core_if->dma_desc_enable) { + addr = &core_if->host_if->host_global_regs->hflbaddr; + DWC_PRINTF("HFLBADDR @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + } + + addr = core_if->host_if->hprt0; + DWC_PRINTF("HPRT0 @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + + for (i = 0; i < core_if->core_params->host_channels; i++) { + DWC_PRINTF("Host Channel %d Specific Registers\n", i); + addr = &core_if->host_if->hc_regs[i]->hcchar; + DWC_PRINTF("HCCHAR @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + addr = &core_if->host_if->hc_regs[i]->hcsplt; + DWC_PRINTF("HCSPLT @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + addr = &core_if->host_if->hc_regs[i]->hcint; + DWC_PRINTF("HCINT @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + addr = &core_if->host_if->hc_regs[i]->hcintmsk; + DWC_PRINTF("HCINTMSK @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + addr = &core_if->host_if->hc_regs[i]->hctsiz; + DWC_PRINTF("HCTSIZ @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + addr = &core_if->host_if->hc_regs[i]->hcdma; + DWC_PRINTF("HCDMA @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + if (core_if->dma_desc_enable) { + addr = &core_if->host_if->hc_regs[i]->hcdmab; + DWC_PRINTF("HCDMAB @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + } + + } + return; +} + +/** + * This function reads the core global registers and prints them + * + * @param core_if Programming view of DWC_otg controller. + */ +void dwc_otg_dump_global_registers(dwc_otg_core_if_t * core_if) +{ + int i, ep_num; + volatile uint32_t *addr; + char *txfsiz; + + DWC_PRINTF("Core Global Registers\n"); + addr = &core_if->core_global_regs->gotgctl; + DWC_PRINTF("GOTGCTL @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->gotgint; + DWC_PRINTF("GOTGINT @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->gahbcfg; + DWC_PRINTF("GAHBCFG @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->gusbcfg; + DWC_PRINTF("GUSBCFG @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->grstctl; + DWC_PRINTF("GRSTCTL @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->gintsts; + DWC_PRINTF("GINTSTS @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->gintmsk; + DWC_PRINTF("GINTMSK @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->grxstsr; + DWC_PRINTF("GRXSTSR @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->grxfsiz; + DWC_PRINTF("GRXFSIZ @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->gnptxfsiz; + DWC_PRINTF("GNPTXFSIZ @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->gnptxsts; + DWC_PRINTF("GNPTXSTS @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->gi2cctl; + DWC_PRINTF("GI2CCTL @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->gpvndctl; + DWC_PRINTF("GPVNDCTL @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->ggpio; + DWC_PRINTF("GGPIO @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->guid; + DWC_PRINTF("GUID @0x%08lX : 0x%08X\n", + (unsigned long)addr, DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->gsnpsid; + DWC_PRINTF("GSNPSID @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->ghwcfg1; + DWC_PRINTF("GHWCFG1 @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->ghwcfg2; + DWC_PRINTF("GHWCFG2 @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->ghwcfg3; + DWC_PRINTF("GHWCFG3 @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->ghwcfg4; + DWC_PRINTF("GHWCFG4 @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->glpmcfg; + DWC_PRINTF("GLPMCFG @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->gpwrdn; + DWC_PRINTF("GPWRDN @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->gdfifocfg; + DWC_PRINTF("GDFIFOCFG @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + addr = &core_if->core_global_regs->adpctl; + DWC_PRINTF("ADPCTL @0x%08lX : 0x%08X\n", (unsigned long)addr, + dwc_otg_adp_read_reg(core_if)); + addr = &core_if->core_global_regs->hptxfsiz; + DWC_PRINTF("HPTXFSIZ @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); + + if (core_if->en_multiple_tx_fifo == 0) { + ep_num = core_if->hwcfg4.b.num_dev_perio_in_ep; + txfsiz = "DPTXFSIZ"; + } else { + ep_num = core_if->hwcfg4.b.num_in_eps; + txfsiz = "DIENPTXF"; + } + for (i = 0; i < ep_num; i++) { + addr = &core_if->core_global_regs->dtxfsiz[i]; + DWC_PRINTF("%s[%d] @0x%08lX : 0x%08X\n", txfsiz, i + 1, + (unsigned long)addr, DWC_READ_REG32(addr)); + } + addr = core_if->pcgcctl; + DWC_PRINTF("PCGCCTL @0x%08lX : 0x%08X\n", (unsigned long)addr, + DWC_READ_REG32(addr)); +} + +/** + * Flush a Tx FIFO. + * + * @param core_if Programming view of DWC_otg controller. + * @param num Tx FIFO to flush. + */ +void dwc_otg_flush_tx_fifo(dwc_otg_core_if_t * core_if, const int num) +{ + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + volatile grstctl_t greset = {.d32 = 0 }; + int count = 0; + + DWC_DEBUGPL((DBG_CIL | DBG_PCDV), "Flush Tx FIFO %d\n", num); + + greset.b.txfflsh = 1; + greset.b.txfnum = num; + DWC_WRITE_REG32(&global_regs->grstctl, greset.d32); + + do { + greset.d32 = DWC_READ_REG32(&global_regs->grstctl); + if (++count > 10000) { + DWC_WARN("%s() HANG! GRSTCTL=%0x GNPTXSTS=0x%08x\n", + __func__, greset.d32, + DWC_READ_REG32(&global_regs->gnptxsts)); + break; + } + dwc_udelay(1); + } while (greset.b.txfflsh == 1); + + /* Wait for 3 PHY Clocks */ + dwc_udelay(1); +} + +/** + * Flush Rx FIFO. + * + * @param core_if Programming view of DWC_otg controller. + */ +void dwc_otg_flush_rx_fifo(dwc_otg_core_if_t * core_if) +{ + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + volatile grstctl_t greset = {.d32 = 0 }; + int count = 0; + + DWC_DEBUGPL((DBG_CIL | DBG_PCDV), "%s\n", __func__); + /* + * + */ + greset.b.rxfflsh = 1; + DWC_WRITE_REG32(&global_regs->grstctl, greset.d32); + + do { + greset.d32 = DWC_READ_REG32(&global_regs->grstctl); + if (++count > 10000) { + DWC_WARN("%s() HANG! GRSTCTL=%0x\n", __func__, + greset.d32); + break; + } + dwc_udelay(1); + } while (greset.b.rxfflsh == 1); + + /* Wait for 3 PHY Clocks */ + dwc_udelay(1); +} + +/** + * Do core a soft reset of the core. Be careful with this because it + * resets all the internal state machines of the core. + */ +void dwc_otg_core_reset(dwc_otg_core_if_t * core_if) +{ + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + volatile grstctl_t greset = {.d32 = 0 }; + int count = 0; + + DWC_DEBUGPL(DBG_CILV, "%s\n", __func__); + /* Wait for AHB master IDLE state. */ + do { + dwc_udelay(10); + greset.d32 = DWC_READ_REG32(&global_regs->grstctl); + if (++count > 100000) { + DWC_WARN("%s() HANG! AHB Idle GRSTCTL=%0x\n", __func__, + greset.d32); + return; + } + } + while (greset.b.ahbidle == 0); + + /* Core Soft Reset */ + count = 0; + greset.b.csftrst = 1; + DWC_WRITE_REG32(&global_regs->grstctl, greset.d32); + do { + greset.d32 = DWC_READ_REG32(&global_regs->grstctl); + if (++count > 10000) { + DWC_WARN("%s() HANG! Soft Reset GRSTCTL=%0x\n", + __func__, greset.d32); + break; + } + dwc_udelay(1); + } + while (greset.b.csftrst == 1); + + /* Wait for 3 PHY Clocks */ + dwc_mdelay(100); +} + +uint8_t dwc_otg_is_device_mode(dwc_otg_core_if_t * _core_if) +{ + return (dwc_otg_mode(_core_if) != DWC_HOST_MODE); +} + +uint8_t dwc_otg_is_host_mode(dwc_otg_core_if_t * _core_if) +{ + return (dwc_otg_mode(_core_if) == DWC_HOST_MODE); +} + +/** + * Register HCD callbacks. The callbacks are used to start and stop + * the HCD for interrupt processing. + * + * @param core_if Programming view of DWC_otg controller. + * @param cb the HCD callback structure. + * @param p pointer to be passed to callback function (usb_hcd*). + */ +void dwc_otg_cil_register_hcd_callbacks(dwc_otg_core_if_t * core_if, + dwc_otg_cil_callbacks_t * cb, void *p) +{ + core_if->hcd_cb = cb; + cb->p = p; +} + +/** + * Register PCD callbacks. The callbacks are used to start and stop + * the PCD for interrupt processing. + * + * @param core_if Programming view of DWC_otg controller. + * @param cb the PCD callback structure. + * @param p pointer to be passed to callback function (pcd*). + */ +void dwc_otg_cil_register_pcd_callbacks(dwc_otg_core_if_t * core_if, + dwc_otg_cil_callbacks_t * cb, void *p) +{ + core_if->pcd_cb = cb; + cb->p = p; +} + +#ifdef DWC_EN_ISOC + +/** + * This function writes isoc data per 1 (micro)frame into tx fifo + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to start the transfer on. + * + */ +void write_isoc_frame_data(dwc_otg_core_if_t * core_if, dwc_ep_t * ep) +{ + dwc_otg_dev_in_ep_regs_t *ep_regs; + dtxfsts_data_t txstatus = {.d32 = 0 }; + uint32_t len = 0; + uint32_t dwords; + + ep->xfer_len = ep->data_per_frame; + ep->xfer_count = 0; + + ep_regs = core_if->dev_if->in_ep_regs[ep->num]; + + len = ep->xfer_len - ep->xfer_count; + + if (len > ep->maxpacket) { + len = ep->maxpacket; + } + + dwords = (len + 3) / 4; + + /* While there is space in the queue and space in the FIFO and + * More data to tranfer, Write packets to the Tx FIFO */ + txstatus.d32 = + DWC_READ_REG32(&core_if->dev_if->in_ep_regs[ep->num]->dtxfsts); + DWC_DEBUGPL(DBG_PCDV, "b4 dtxfsts[%d]=0x%08x\n", ep->num, txstatus.d32); + + while (txstatus.b.txfspcavail > dwords && + ep->xfer_count < ep->xfer_len && ep->xfer_len != 0) { + /* Write the FIFO */ + dwc_otg_ep_write_packet(core_if, ep, 0); + + len = ep->xfer_len - ep->xfer_count; + if (len > ep->maxpacket) { + len = ep->maxpacket; + } + + dwords = (len + 3) / 4; + txstatus.d32 = + DWC_READ_REG32(&core_if->dev_if->in_ep_regs[ep->num]-> + dtxfsts); + DWC_DEBUGPL(DBG_PCDV, "dtxfsts[%d]=0x%08x\n", ep->num, + txstatus.d32); + } +} + +/** + * This function initializes a descriptor chain for Isochronous transfer + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to start the transfer on. + * + */ +void dwc_otg_iso_ep_start_frm_transfer(dwc_otg_core_if_t * core_if, + dwc_ep_t * ep) +{ + deptsiz_data_t deptsiz = {.d32 = 0 }; + depctl_data_t depctl = {.d32 = 0 }; + dsts_data_t dsts = {.d32 = 0 }; + volatile uint32_t *addr; + + if (ep->is_in) { + addr = &core_if->dev_if->in_ep_regs[ep->num]->diepctl; + } else { + addr = &core_if->dev_if->out_ep_regs[ep->num]->doepctl; + } + + ep->xfer_len = ep->data_per_frame; + ep->xfer_count = 0; + ep->xfer_buff = ep->cur_pkt_addr; + ep->dma_addr = ep->cur_pkt_dma_addr; + + if (ep->is_in) { + /* Program the transfer size and packet count + * as follows: xfersize = N * maxpacket + + * short_packet pktcnt = N + (short_packet + * exist ? 1 : 0) + */ + deptsiz.b.xfersize = ep->xfer_len; + deptsiz.b.pktcnt = + (ep->xfer_len - 1 + ep->maxpacket) / ep->maxpacket; + deptsiz.b.mc = deptsiz.b.pktcnt; + DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[ep->num]->dieptsiz, + deptsiz.d32); + + /* Write the DMA register */ + if (core_if->dma_enable) { + DWC_WRITE_REG32(& + (core_if->dev_if->in_ep_regs[ep->num]-> + diepdma), (uint32_t) ep->dma_addr); + } + } else { + deptsiz.b.pktcnt = + (ep->xfer_len + (ep->maxpacket - 1)) / ep->maxpacket; + deptsiz.b.xfersize = deptsiz.b.pktcnt * ep->maxpacket; + + DWC_WRITE_REG32(&core_if->dev_if-> + out_ep_regs[ep->num]->doeptsiz, deptsiz.d32); + + if (core_if->dma_enable) { + DWC_WRITE_REG32(& + (core_if->dev_if-> + out_ep_regs[ep->num]->doepdma), + (uint32_t) ep->dma_addr); + } + } + + /** Enable endpoint, clear nak */ + + depctl.d32 = 0; + if (ep->bInterval == 1) { + dsts.d32 = + DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dsts); + ep->next_frame = dsts.b.soffn + ep->bInterval; + + if (ep->next_frame & 0x1) { + depctl.b.setd1pid = 1; + } else { + depctl.b.setd0pid = 1; + } + } else { + ep->next_frame += ep->bInterval; + + if (ep->next_frame & 0x1) { + depctl.b.setd1pid = 1; + } else { + depctl.b.setd0pid = 1; + } + } + depctl.b.epena = 1; + depctl.b.cnak = 1; + + DWC_MODIFY_REG32(addr, 0, depctl.d32); + depctl.d32 = DWC_READ_REG32(addr); + + if (ep->is_in && core_if->dma_enable == 0) { + write_isoc_frame_data(core_if, ep); + } + +} +#endif /* DWC_EN_ISOC */ + +static void dwc_otg_set_uninitialized(int32_t * p, int size) +{ + int i; + for (i = 0; i < size; i++) { + p[i] = -1; + } +} + +static int dwc_otg_param_initialized(int32_t val) +{ + return val != -1; +} + +static int dwc_otg_setup_params(dwc_otg_core_if_t * core_if) +{ + int i; + core_if->core_params = DWC_ALLOC(sizeof(*core_if->core_params)); + if (!core_if->core_params) { + return -DWC_E_NO_MEMORY; + } + dwc_otg_set_uninitialized((int32_t *) core_if->core_params, + sizeof(*core_if->core_params) / + sizeof(int32_t)); + DWC_PRINTF("Setting default values for core params\n"); + dwc_otg_set_param_otg_cap(core_if, dwc_param_otg_cap_default); + dwc_otg_set_param_dma_enable(core_if, dwc_param_dma_enable_default); + dwc_otg_set_param_dma_desc_enable(core_if, + dwc_param_dma_desc_enable_default); + dwc_otg_set_param_opt(core_if, dwc_param_opt_default); + dwc_otg_set_param_dma_burst_size(core_if, + dwc_param_dma_burst_size_default); + dwc_otg_set_param_host_support_fs_ls_low_power(core_if, + dwc_param_host_support_fs_ls_low_power_default); + dwc_otg_set_param_enable_dynamic_fifo(core_if, + dwc_param_enable_dynamic_fifo_default); + dwc_otg_set_param_data_fifo_size(core_if, + dwc_param_data_fifo_size_default); + dwc_otg_set_param_dev_rx_fifo_size(core_if, + dwc_param_dev_rx_fifo_size_default); + dwc_otg_set_param_dev_nperio_tx_fifo_size(core_if, + dwc_param_dev_nperio_tx_fifo_size_default); + dwc_otg_set_param_host_rx_fifo_size(core_if, + dwc_param_host_rx_fifo_size_default); + dwc_otg_set_param_host_nperio_tx_fifo_size(core_if, + dwc_param_host_nperio_tx_fifo_size_default); + dwc_otg_set_param_host_perio_tx_fifo_size(core_if, + dwc_param_host_perio_tx_fifo_size_default); + dwc_otg_set_param_max_transfer_size(core_if, + dwc_param_max_transfer_size_default); + dwc_otg_set_param_max_packet_count(core_if, + dwc_param_max_packet_count_default); + dwc_otg_set_param_host_channels(core_if, + dwc_param_host_channels_default); + dwc_otg_set_param_dev_endpoints(core_if, + dwc_param_dev_endpoints_default); + dwc_otg_set_param_phy_type(core_if, dwc_param_phy_type_default); + dwc_otg_set_param_speed(core_if, dwc_param_speed_default); + dwc_otg_set_param_host_ls_low_power_phy_clk(core_if, + dwc_param_host_ls_low_power_phy_clk_default); + dwc_otg_set_param_phy_ulpi_ddr(core_if, dwc_param_phy_ulpi_ddr_default); + dwc_otg_set_param_phy_ulpi_ext_vbus(core_if, + dwc_param_phy_ulpi_ext_vbus_default); + dwc_otg_set_param_phy_utmi_width(core_if, + dwc_param_phy_utmi_width_default); + dwc_otg_set_param_ts_dline(core_if, dwc_param_ts_dline_default); + dwc_otg_set_param_i2c_enable(core_if, dwc_param_i2c_enable_default); + dwc_otg_set_param_ulpi_fs_ls(core_if, dwc_param_ulpi_fs_ls_default); + dwc_otg_set_param_en_multiple_tx_fifo(core_if, + dwc_param_en_multiple_tx_fifo_default); + for (i = 0; i < 15; i++) { + dwc_otg_set_param_dev_perio_tx_fifo_size(core_if, + dwc_param_dev_perio_tx_fifo_size_default, + i); + } + + for (i = 0; i < 15; i++) { + dwc_otg_set_param_dev_tx_fifo_size(core_if, + dwc_param_dev_tx_fifo_size_default, + i); + } + dwc_otg_set_param_thr_ctl(core_if, dwc_param_thr_ctl_default); + dwc_otg_set_param_mpi_enable(core_if, dwc_param_mpi_enable_default); + dwc_otg_set_param_pti_enable(core_if, dwc_param_pti_enable_default); + dwc_otg_set_param_lpm_enable(core_if, dwc_param_lpm_enable_default); + dwc_otg_set_param_ic_usb_cap(core_if, dwc_param_ic_usb_cap_default); + dwc_otg_set_param_tx_thr_length(core_if, + dwc_param_tx_thr_length_default); + dwc_otg_set_param_rx_thr_length(core_if, + dwc_param_rx_thr_length_default); + dwc_otg_set_param_ahb_thr_ratio(core_if, + dwc_param_ahb_thr_ratio_default); + dwc_otg_set_param_power_down(core_if, dwc_param_power_down_default); + dwc_otg_set_param_reload_ctl(core_if, dwc_param_reload_ctl_default); + dwc_otg_set_param_dev_out_nak(core_if, dwc_param_dev_out_nak_default); + dwc_otg_set_param_cont_on_bna(core_if, dwc_param_cont_on_bna_default); + dwc_otg_set_param_ahb_single(core_if, dwc_param_ahb_single_default); + dwc_otg_set_param_otg_ver(core_if, dwc_param_otg_ver_default); + dwc_otg_set_param_adp_enable(core_if, dwc_param_adp_enable_default); + DWC_PRINTF("Finished setting default values for core params\n"); + + return 0; +} + +uint8_t dwc_otg_is_dma_enable(dwc_otg_core_if_t * core_if) +{ + return core_if->dma_enable; +} + +/* Checks if the parameter is outside of its valid range of values */ +#define DWC_OTG_PARAM_TEST(_param_, _low_, _high_) \ + (((_param_) < (_low_)) || \ + ((_param_) > (_high_))) + +/* Parameter access functions */ +int dwc_otg_set_param_otg_cap(dwc_otg_core_if_t * core_if, int32_t val) +{ + int valid; + int retval = 0; + if (DWC_OTG_PARAM_TEST(val, 0, 2)) { + DWC_WARN("Wrong value for otg_cap parameter\n"); + DWC_WARN("otg_cap parameter must be 0,1 or 2\n"); + retval = -DWC_E_INVALID; + goto out; + } + + valid = 1; + switch (val) { + case DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE: + if (core_if->hwcfg2.b.op_mode != + DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG) + valid = 0; + break; + case DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE: + if ((core_if->hwcfg2.b.op_mode != + DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG) + && (core_if->hwcfg2.b.op_mode != + DWC_HWCFG2_OP_MODE_SRP_ONLY_CAPABLE_OTG) + && (core_if->hwcfg2.b.op_mode != + DWC_HWCFG2_OP_MODE_SRP_CAPABLE_DEVICE) + && (core_if->hwcfg2.b.op_mode != + DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST)) { + valid = 0; + } + break; + case DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE: + /* always valid */ + break; + } + if (!valid) { + if (dwc_otg_param_initialized(core_if->core_params->otg_cap)) { + DWC_ERROR + ("%d invalid for otg_cap paremter. Check HW configuration.\n", + val); + } + val = + (((core_if->hwcfg2.b.op_mode == + DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG) + || (core_if->hwcfg2.b.op_mode == + DWC_HWCFG2_OP_MODE_SRP_ONLY_CAPABLE_OTG) + || (core_if->hwcfg2.b.op_mode == + DWC_HWCFG2_OP_MODE_SRP_CAPABLE_DEVICE) + || (core_if->hwcfg2.b.op_mode == + DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST)) ? + DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE : + DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE); + retval = -DWC_E_INVALID; + } + + core_if->core_params->otg_cap = val; +out: + return retval; +} + +int32_t dwc_otg_get_param_otg_cap(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->otg_cap; +} + +int dwc_otg_set_param_opt(dwc_otg_core_if_t * core_if, int32_t val) +{ + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("Wrong value for opt parameter\n"); + return -DWC_E_INVALID; + } + core_if->core_params->opt = val; + return 0; +} + +int32_t dwc_otg_get_param_opt(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->opt; +} + +int dwc_otg_set_param_dma_enable(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("Wrong value for dma enable\n"); + return -DWC_E_INVALID; + } + + if ((val == 1) && (core_if->hwcfg2.b.architecture == 0)) { + if (dwc_otg_param_initialized(core_if->core_params->dma_enable)) { + DWC_ERROR + ("%d invalid for dma_enable paremter. Check HW configuration.\n", + val); + } + val = 0; + retval = -DWC_E_INVALID; + } + + core_if->core_params->dma_enable = val; + if (val == 0) { + dwc_otg_set_param_dma_desc_enable(core_if, 0); + } + return retval; +} + +int32_t dwc_otg_get_param_dma_enable(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->dma_enable; +} + +int dwc_otg_set_param_dma_desc_enable(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("Wrong value for dma_enable\n"); + DWC_WARN("dma_desc_enable must be 0 or 1\n"); + return -DWC_E_INVALID; + } + + if ((val == 1) + && ((dwc_otg_get_param_dma_enable(core_if) == 0) + || (core_if->hwcfg4.b.desc_dma == 0))) { + if (dwc_otg_param_initialized + (core_if->core_params->dma_desc_enable)) { + DWC_ERROR + ("%d invalid for dma_desc_enable paremter. Check HW configuration.\n", + val); + } + val = 0; + retval = -DWC_E_INVALID; + } + core_if->core_params->dma_desc_enable = val; + return retval; +} + +int32_t dwc_otg_get_param_dma_desc_enable(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->dma_desc_enable; +} + +int dwc_otg_set_param_host_support_fs_ls_low_power(dwc_otg_core_if_t * core_if, + int32_t val) +{ + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("Wrong value for host_support_fs_low_power\n"); + DWC_WARN("host_support_fs_low_power must be 0 or 1\n"); + return -DWC_E_INVALID; + } + core_if->core_params->host_support_fs_ls_low_power = val; + return 0; +} + +int32_t dwc_otg_get_param_host_support_fs_ls_low_power(dwc_otg_core_if_t * + core_if) +{ + return core_if->core_params->host_support_fs_ls_low_power; +} + +int dwc_otg_set_param_enable_dynamic_fifo(dwc_otg_core_if_t * core_if, + int32_t val) +{ + int retval = 0; + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("Wrong value for enable_dynamic_fifo\n"); + DWC_WARN("enable_dynamic_fifo must be 0 or 1\n"); + return -DWC_E_INVALID; + } + + if ((val == 1) && (core_if->hwcfg2.b.dynamic_fifo == 0)) { + if (dwc_otg_param_initialized + (core_if->core_params->enable_dynamic_fifo)) { + DWC_ERROR + ("%d invalid for enable_dynamic_fifo paremter. Check HW configuration.\n", + val); + } + val = 0; + retval = -DWC_E_INVALID; + } + core_if->core_params->enable_dynamic_fifo = val; + return retval; +} + +int32_t dwc_otg_get_param_enable_dynamic_fifo(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->enable_dynamic_fifo; +} + +int dwc_otg_set_param_data_fifo_size(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + if (DWC_OTG_PARAM_TEST(val, 32, 32768)) { + DWC_WARN("Wrong value for data_fifo_size\n"); + DWC_WARN("data_fifo_size must be 32-32768\n"); + return -DWC_E_INVALID; + } + + if (val > core_if->hwcfg3.b.dfifo_depth) { + if (dwc_otg_param_initialized + (core_if->core_params->data_fifo_size)) { + DWC_ERROR + ("%d invalid for data_fifo_size parameter. Check HW configuration.\n", + val); + } + val = core_if->hwcfg3.b.dfifo_depth; + retval = -DWC_E_INVALID; + } + + core_if->core_params->data_fifo_size = val; + return retval; +} + +int32_t dwc_otg_get_param_data_fifo_size(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->data_fifo_size; +} + +int dwc_otg_set_param_dev_rx_fifo_size(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + if (DWC_OTG_PARAM_TEST(val, 16, 32768)) { + DWC_WARN("Wrong value for dev_rx_fifo_size\n"); + DWC_WARN("dev_rx_fifo_size must be 16-32768\n"); + return -DWC_E_INVALID; + } + + if (val > DWC_READ_REG32(&core_if->core_global_regs->grxfsiz)) { + if (dwc_otg_param_initialized(core_if->core_params->dev_rx_fifo_size)) { + DWC_WARN("%d invalid for dev_rx_fifo_size parameter\n", val); + } + val = DWC_READ_REG32(&core_if->core_global_regs->grxfsiz); + retval = -DWC_E_INVALID; + } + + core_if->core_params->dev_rx_fifo_size = val; + return retval; +} + +int32_t dwc_otg_get_param_dev_rx_fifo_size(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->dev_rx_fifo_size; +} + +int dwc_otg_set_param_dev_nperio_tx_fifo_size(dwc_otg_core_if_t * core_if, + int32_t val) +{ + int retval = 0; + + if (DWC_OTG_PARAM_TEST(val, 16, 32768)) { + DWC_WARN("Wrong value for dev_nperio_tx_fifo\n"); + DWC_WARN("dev_nperio_tx_fifo must be 16-32768\n"); + return -DWC_E_INVALID; + } + + if (val > (DWC_READ_REG32(&core_if->core_global_regs->gnptxfsiz) >> 16)) { + if (dwc_otg_param_initialized + (core_if->core_params->dev_nperio_tx_fifo_size)) { + DWC_ERROR + ("%d invalid for dev_nperio_tx_fifo_size. Check HW configuration.\n", + val); + } + val = + (DWC_READ_REG32(&core_if->core_global_regs->gnptxfsiz) >> + 16); + retval = -DWC_E_INVALID; + } + + core_if->core_params->dev_nperio_tx_fifo_size = val; + return retval; +} + +int32_t dwc_otg_get_param_dev_nperio_tx_fifo_size(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->dev_nperio_tx_fifo_size; +} + +int dwc_otg_set_param_host_rx_fifo_size(dwc_otg_core_if_t * core_if, + int32_t val) +{ + int retval = 0; + + if (DWC_OTG_PARAM_TEST(val, 16, 32768)) { + DWC_WARN("Wrong value for host_rx_fifo_size\n"); + DWC_WARN("host_rx_fifo_size must be 16-32768\n"); + return -DWC_E_INVALID; + } + + if (val > DWC_READ_REG32(&core_if->core_global_regs->grxfsiz)) { + if (dwc_otg_param_initialized + (core_if->core_params->host_rx_fifo_size)) { + DWC_ERROR + ("%d invalid for host_rx_fifo_size. Check HW configuration.\n", + val); + } + val = DWC_READ_REG32(&core_if->core_global_regs->grxfsiz); + retval = -DWC_E_INVALID; + } + + core_if->core_params->host_rx_fifo_size = val; + return retval; + +} + +int32_t dwc_otg_get_param_host_rx_fifo_size(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->host_rx_fifo_size; +} + +int dwc_otg_set_param_host_nperio_tx_fifo_size(dwc_otg_core_if_t * core_if, + int32_t val) +{ + int retval = 0; + + if (DWC_OTG_PARAM_TEST(val, 16, 32768)) { + DWC_WARN("Wrong value for host_nperio_tx_fifo_size\n"); + DWC_WARN("host_nperio_tx_fifo_size must be 16-32768\n"); + return -DWC_E_INVALID; + } + + if (val > (DWC_READ_REG32(&core_if->core_global_regs->gnptxfsiz) >> 16)) { + if (dwc_otg_param_initialized + (core_if->core_params->host_nperio_tx_fifo_size)) { + DWC_ERROR + ("%d invalid for host_nperio_tx_fifo_size. Check HW configuration.\n", + val); + } + val = + (DWC_READ_REG32(&core_if->core_global_regs->gnptxfsiz) >> + 16); + retval = -DWC_E_INVALID; + } + + core_if->core_params->host_nperio_tx_fifo_size = val; + return retval; +} + +int32_t dwc_otg_get_param_host_nperio_tx_fifo_size(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->host_nperio_tx_fifo_size; +} + +int dwc_otg_set_param_host_perio_tx_fifo_size(dwc_otg_core_if_t * core_if, + int32_t val) +{ + int retval = 0; + if (DWC_OTG_PARAM_TEST(val, 16, 32768)) { + DWC_WARN("Wrong value for host_perio_tx_fifo_size\n"); + DWC_WARN("host_perio_tx_fifo_size must be 16-32768\n"); + return -DWC_E_INVALID; + } + + if (val > ((core_if->hptxfsiz.d32) >> 16)) { + if (dwc_otg_param_initialized + (core_if->core_params->host_perio_tx_fifo_size)) { + DWC_ERROR + ("%d invalid for host_perio_tx_fifo_size. Check HW configuration.\n", + val); + } + val = (core_if->hptxfsiz.d32) >> 16; + retval = -DWC_E_INVALID; + } + + core_if->core_params->host_perio_tx_fifo_size = val; + return retval; +} + +int32_t dwc_otg_get_param_host_perio_tx_fifo_size(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->host_perio_tx_fifo_size; +} + +int dwc_otg_set_param_max_transfer_size(dwc_otg_core_if_t * core_if, + int32_t val) +{ + int retval = 0; + + if (DWC_OTG_PARAM_TEST(val, 2047, 524288)) { + DWC_WARN("Wrong value for max_transfer_size\n"); + DWC_WARN("max_transfer_size must be 2047-524288\n"); + return -DWC_E_INVALID; + } + + if (val >= (1 << (core_if->hwcfg3.b.xfer_size_cntr_width + 11))) { + if (dwc_otg_param_initialized + (core_if->core_params->max_transfer_size)) { + DWC_ERROR + ("%d invalid for max_transfer_size. Check HW configuration.\n", + val); + } + val = + ((1 << (core_if->hwcfg3.b.packet_size_cntr_width + 11)) - + 1); + retval = -DWC_E_INVALID; + } + + core_if->core_params->max_transfer_size = val; + return retval; +} + +int32_t dwc_otg_get_param_max_transfer_size(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->max_transfer_size; +} + +int dwc_otg_set_param_max_packet_count(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + + if (DWC_OTG_PARAM_TEST(val, 15, 511)) { + DWC_WARN("Wrong value for max_packet_count\n"); + DWC_WARN("max_packet_count must be 15-511\n"); + return -DWC_E_INVALID; + } + + if (val > (1 << (core_if->hwcfg3.b.packet_size_cntr_width + 4))) { + if (dwc_otg_param_initialized + (core_if->core_params->max_packet_count)) { + DWC_ERROR + ("%d invalid for max_packet_count. Check HW configuration.\n", + val); + } + val = + ((1 << (core_if->hwcfg3.b.packet_size_cntr_width + 4)) - 1); + retval = -DWC_E_INVALID; + } + + core_if->core_params->max_packet_count = val; + return retval; +} + +int32_t dwc_otg_get_param_max_packet_count(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->max_packet_count; +} + +int dwc_otg_set_param_host_channels(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + + if (DWC_OTG_PARAM_TEST(val, 1, 16)) { + DWC_WARN("Wrong value for host_channels\n"); + DWC_WARN("host_channels must be 1-16\n"); + return -DWC_E_INVALID; + } + + if (val > (core_if->hwcfg2.b.num_host_chan + 1)) { + if (dwc_otg_param_initialized + (core_if->core_params->host_channels)) { + DWC_ERROR + ("%d invalid for host_channels. Check HW configurations.\n", + val); + } + val = (core_if->hwcfg2.b.num_host_chan + 1); + retval = -DWC_E_INVALID; + } + + core_if->core_params->host_channels = val; + return retval; +} + +int32_t dwc_otg_get_param_host_channels(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->host_channels; +} + +int dwc_otg_set_param_dev_endpoints(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + + if (DWC_OTG_PARAM_TEST(val, 1, 15)) { + DWC_WARN("Wrong value for dev_endpoints\n"); + DWC_WARN("dev_endpoints must be 1-15\n"); + return -DWC_E_INVALID; + } + + if (val > (core_if->hwcfg2.b.num_dev_ep)) { + if (dwc_otg_param_initialized + (core_if->core_params->dev_endpoints)) { + DWC_ERROR + ("%d invalid for dev_endpoints. Check HW configurations.\n", + val); + } + val = core_if->hwcfg2.b.num_dev_ep; + retval = -DWC_E_INVALID; + } + + core_if->core_params->dev_endpoints = val; + return retval; +} + +int32_t dwc_otg_get_param_dev_endpoints(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->dev_endpoints; +} + +int dwc_otg_set_param_phy_type(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + int valid = 0; + + if (DWC_OTG_PARAM_TEST(val, 0, 2)) { + DWC_WARN("Wrong value for phy_type\n"); + DWC_WARN("phy_type must be 0,1 or 2\n"); + return -DWC_E_INVALID; + } +#ifndef NO_FS_PHY_HW_CHECKS + if ((val == DWC_PHY_TYPE_PARAM_UTMI) && + ((core_if->hwcfg2.b.hs_phy_type == 1) || + (core_if->hwcfg2.b.hs_phy_type == 3))) { + valid = 1; + } else if ((val == DWC_PHY_TYPE_PARAM_ULPI) && + ((core_if->hwcfg2.b.hs_phy_type == 2) || + (core_if->hwcfg2.b.hs_phy_type == 3))) { + valid = 1; + } else if ((val == DWC_PHY_TYPE_PARAM_FS) && + (core_if->hwcfg2.b.fs_phy_type == 1)) { + valid = 1; + } + if (!valid) { + if (dwc_otg_param_initialized(core_if->core_params->phy_type)) { + DWC_ERROR + ("%d invalid for phy_type. Check HW configurations.\n", + val); + } + if (core_if->hwcfg2.b.hs_phy_type) { + if ((core_if->hwcfg2.b.hs_phy_type == 3) || + (core_if->hwcfg2.b.hs_phy_type == 1)) { + val = DWC_PHY_TYPE_PARAM_UTMI; + } else { + val = DWC_PHY_TYPE_PARAM_ULPI; + } + } + retval = -DWC_E_INVALID; + } +#endif + core_if->core_params->phy_type = val; + return retval; +} + +int32_t dwc_otg_get_param_phy_type(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->phy_type; +} + +int dwc_otg_set_param_speed(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("Wrong value for speed parameter\n"); + DWC_WARN("max_speed parameter must be 0 or 1\n"); + return -DWC_E_INVALID; + } + if ((val == 0) + && dwc_otg_get_param_phy_type(core_if) == DWC_PHY_TYPE_PARAM_FS) { + if (dwc_otg_param_initialized(core_if->core_params->speed)) { + DWC_ERROR + ("%d invalid for speed paremter. Check HW configuration.\n", + val); + } + val = + (dwc_otg_get_param_phy_type(core_if) == + DWC_PHY_TYPE_PARAM_FS ? 1 : 0); + retval = -DWC_E_INVALID; + } + core_if->core_params->speed = val; + return retval; +} + +int32_t dwc_otg_get_param_speed(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->speed; +} + +int dwc_otg_set_param_host_ls_low_power_phy_clk(dwc_otg_core_if_t * core_if, + int32_t val) +{ + int retval = 0; + + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN + ("Wrong value for host_ls_low_power_phy_clk parameter\n"); + DWC_WARN("host_ls_low_power_phy_clk must be 0 or 1\n"); + return -DWC_E_INVALID; + } + + if ((val == DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ) + && (dwc_otg_get_param_phy_type(core_if) == DWC_PHY_TYPE_PARAM_FS)) { + if (dwc_otg_param_initialized + (core_if->core_params->host_ls_low_power_phy_clk)) { + DWC_ERROR + ("%d invalid for host_ls_low_power_phy_clk. Check HW configuration.\n", + val); + } + val = + (dwc_otg_get_param_phy_type(core_if) == + DWC_PHY_TYPE_PARAM_FS) ? + DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ : + DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ; + retval = -DWC_E_INVALID; + } + + core_if->core_params->host_ls_low_power_phy_clk = val; + return retval; +} + +int32_t dwc_otg_get_param_host_ls_low_power_phy_clk(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->host_ls_low_power_phy_clk; +} + +int dwc_otg_set_param_phy_ulpi_ddr(dwc_otg_core_if_t * core_if, int32_t val) +{ + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("Wrong value for phy_ulpi_ddr\n"); + DWC_WARN("phy_upli_ddr must be 0 or 1\n"); + return -DWC_E_INVALID; + } + + core_if->core_params->phy_ulpi_ddr = val; + return 0; +} + +int32_t dwc_otg_get_param_phy_ulpi_ddr(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->phy_ulpi_ddr; +} + +int dwc_otg_set_param_phy_ulpi_ext_vbus(dwc_otg_core_if_t * core_if, + int32_t val) +{ + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("Wrong valaue for phy_ulpi_ext_vbus\n"); + DWC_WARN("phy_ulpi_ext_vbus must be 0 or 1\n"); + return -DWC_E_INVALID; + } + + core_if->core_params->phy_ulpi_ext_vbus = val; + return 0; +} + +int32_t dwc_otg_get_param_phy_ulpi_ext_vbus(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->phy_ulpi_ext_vbus; +} + +int dwc_otg_set_param_phy_utmi_width(dwc_otg_core_if_t * core_if, int32_t val) +{ + if (DWC_OTG_PARAM_TEST(val, 8, 8) && DWC_OTG_PARAM_TEST(val, 16, 16)) { + DWC_WARN("Wrong valaue for phy_utmi_width\n"); + DWC_WARN("phy_utmi_width must be 8 or 16\n"); + return -DWC_E_INVALID; + } + + core_if->core_params->phy_utmi_width = val; + return 0; +} + +int32_t dwc_otg_get_param_phy_utmi_width(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->phy_utmi_width; +} + +int dwc_otg_set_param_ulpi_fs_ls(dwc_otg_core_if_t * core_if, int32_t val) +{ + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("Wrong valaue for ulpi_fs_ls\n"); + DWC_WARN("ulpi_fs_ls must be 0 or 1\n"); + return -DWC_E_INVALID; + } + + core_if->core_params->ulpi_fs_ls = val; + return 0; +} + +int32_t dwc_otg_get_param_ulpi_fs_ls(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->ulpi_fs_ls; +} + +int dwc_otg_set_param_ts_dline(dwc_otg_core_if_t * core_if, int32_t val) +{ + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("Wrong valaue for ts_dline\n"); + DWC_WARN("ts_dline must be 0 or 1\n"); + return -DWC_E_INVALID; + } + + core_if->core_params->ts_dline = val; + return 0; +} + +int32_t dwc_otg_get_param_ts_dline(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->ts_dline; +} + +int dwc_otg_set_param_i2c_enable(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("Wrong valaue for i2c_enable\n"); + DWC_WARN("i2c_enable must be 0 or 1\n"); + return -DWC_E_INVALID; + } +#ifndef NO_FS_PHY_HW_CHECK + if (val == 1 && core_if->hwcfg3.b.i2c == 0) { + if (dwc_otg_param_initialized(core_if->core_params->i2c_enable)) { + DWC_ERROR + ("%d invalid for i2c_enable. Check HW configuration.\n", + val); + } + val = 0; + retval = -DWC_E_INVALID; + } +#endif + + core_if->core_params->i2c_enable = val; + return retval; +} + +int32_t dwc_otg_get_param_i2c_enable(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->i2c_enable; +} + +int dwc_otg_set_param_dev_perio_tx_fifo_size(dwc_otg_core_if_t * core_if, + int32_t val, int fifo_num) +{ + int retval = 0; + + if (DWC_OTG_PARAM_TEST(val, 4, 768)) { + DWC_WARN("Wrong value for dev_perio_tx_fifo_size\n"); + DWC_WARN("dev_perio_tx_fifo_size must be 4-768\n"); + return -DWC_E_INVALID; + } + + if (val > + (DWC_READ_REG32(&core_if->core_global_regs->dtxfsiz[fifo_num]))) { + if (dwc_otg_param_initialized + (core_if->core_params->dev_perio_tx_fifo_size[fifo_num])) { + DWC_ERROR + ("`%d' invalid for parameter `dev_perio_fifo_size_%d'. Check HW configuration.\n", + val, fifo_num); + } + val = (DWC_READ_REG32(&core_if->core_global_regs->dtxfsiz[fifo_num])); + retval = -DWC_E_INVALID; + } + + core_if->core_params->dev_perio_tx_fifo_size[fifo_num] = val; + return retval; +} + +int32_t dwc_otg_get_param_dev_perio_tx_fifo_size(dwc_otg_core_if_t * core_if, + int fifo_num) +{ + return core_if->core_params->dev_perio_tx_fifo_size[fifo_num]; +} + +int dwc_otg_set_param_en_multiple_tx_fifo(dwc_otg_core_if_t * core_if, + int32_t val) +{ + int retval = 0; + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("Wrong valaue for en_multiple_tx_fifo,\n"); + DWC_WARN("en_multiple_tx_fifo must be 0 or 1\n"); + return -DWC_E_INVALID; + } + + if (val == 1 && core_if->hwcfg4.b.ded_fifo_en == 0) { + if (dwc_otg_param_initialized + (core_if->core_params->en_multiple_tx_fifo)) { + DWC_ERROR + ("%d invalid for parameter en_multiple_tx_fifo. Check HW configuration.\n", + val); + } + val = 0; + retval = -DWC_E_INVALID; + } + + core_if->core_params->en_multiple_tx_fifo = val; + return retval; +} + +int32_t dwc_otg_get_param_en_multiple_tx_fifo(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->en_multiple_tx_fifo; +} + +int dwc_otg_set_param_dev_tx_fifo_size(dwc_otg_core_if_t * core_if, int32_t val, + int fifo_num) +{ + int retval = 0; + + if (DWC_OTG_PARAM_TEST(val, 4, 768)) { + DWC_WARN("Wrong value for dev_tx_fifo_size\n"); + DWC_WARN("dev_tx_fifo_size must be 4-768\n"); + return -DWC_E_INVALID; + } + + if (val > + (DWC_READ_REG32(&core_if->core_global_regs->dtxfsiz[fifo_num]))) { + if (dwc_otg_param_initialized + (core_if->core_params->dev_tx_fifo_size[fifo_num])) { + DWC_ERROR + ("`%d' invalid for parameter `dev_tx_fifo_size_%d'. Check HW configuration.\n", + val, fifo_num); + } + val = (DWC_READ_REG32(&core_if->core_global_regs->dtxfsiz[fifo_num])); + retval = -DWC_E_INVALID; + } + + core_if->core_params->dev_tx_fifo_size[fifo_num] = val; + return retval; +} + +int32_t dwc_otg_get_param_dev_tx_fifo_size(dwc_otg_core_if_t * core_if, + int fifo_num) +{ + return core_if->core_params->dev_tx_fifo_size[fifo_num]; +} + +int dwc_otg_set_param_thr_ctl(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + + if (DWC_OTG_PARAM_TEST(val, 0, 7)) { + DWC_WARN("Wrong value for thr_ctl\n"); + DWC_WARN("thr_ctl must be 0-7\n"); + return -DWC_E_INVALID; + } + + if ((val != 0) && + (!dwc_otg_get_param_dma_enable(core_if) || + !core_if->hwcfg4.b.ded_fifo_en)) { + if (dwc_otg_param_initialized(core_if->core_params->thr_ctl)) { + DWC_ERROR + ("%d invalid for parameter thr_ctl. Check HW configuration.\n", + val); + } + val = 0; + retval = -DWC_E_INVALID; + } + + core_if->core_params->thr_ctl = val; + return retval; +} + +int32_t dwc_otg_get_param_thr_ctl(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->thr_ctl; +} + +int dwc_otg_set_param_lpm_enable(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("Wrong value for lpm_enable\n"); + DWC_WARN("lpm_enable must be 0 or 1\n"); + return -DWC_E_INVALID; + } + + if (val && !core_if->hwcfg3.b.otg_lpm_en) { + if (dwc_otg_param_initialized(core_if->core_params->lpm_enable)) { + DWC_ERROR + ("%d invalid for parameter lpm_enable. Check HW configuration.\n", + val); + } + val = 0; + retval = -DWC_E_INVALID; + } + + core_if->core_params->lpm_enable = val; + return retval; +} + +int32_t dwc_otg_get_param_lpm_enable(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->lpm_enable; +} + +int dwc_otg_set_param_tx_thr_length(dwc_otg_core_if_t * core_if, int32_t val) +{ + if (DWC_OTG_PARAM_TEST(val, 8, 128)) { + DWC_WARN("Wrong valaue for tx_thr_length\n"); + DWC_WARN("tx_thr_length must be 8 - 128\n"); + return -DWC_E_INVALID; + } + + core_if->core_params->tx_thr_length = val; + return 0; +} + +int32_t dwc_otg_get_param_tx_thr_length(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->tx_thr_length; +} + +int dwc_otg_set_param_rx_thr_length(dwc_otg_core_if_t * core_if, int32_t val) +{ + if (DWC_OTG_PARAM_TEST(val, 8, 128)) { + DWC_WARN("Wrong valaue for rx_thr_length\n"); + DWC_WARN("rx_thr_length must be 8 - 128\n"); + return -DWC_E_INVALID; + } + + core_if->core_params->rx_thr_length = val; + return 0; +} + +int32_t dwc_otg_get_param_rx_thr_length(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->rx_thr_length; +} + +int dwc_otg_set_param_dma_burst_size(dwc_otg_core_if_t * core_if, int32_t val) +{ + if (DWC_OTG_PARAM_TEST(val, 1, 1) && + DWC_OTG_PARAM_TEST(val, 4, 4) && + DWC_OTG_PARAM_TEST(val, 8, 8) && + DWC_OTG_PARAM_TEST(val, 16, 16) && + DWC_OTG_PARAM_TEST(val, 32, 32) && + DWC_OTG_PARAM_TEST(val, 64, 64) && + DWC_OTG_PARAM_TEST(val, 128, 128) && + DWC_OTG_PARAM_TEST(val, 256, 256)) { + DWC_WARN("`%d' invalid for parameter `dma_burst_size'\n", val); + return -DWC_E_INVALID; + } + core_if->core_params->dma_burst_size = val; + return 0; +} + +int32_t dwc_otg_get_param_dma_burst_size(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->dma_burst_size; +} + +int dwc_otg_set_param_pti_enable(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("`%d' invalid for parameter `pti_enable'\n", val); + return -DWC_E_INVALID; + } + if (val && (core_if->snpsid < OTG_CORE_REV_2_72a)) { + if (dwc_otg_param_initialized(core_if->core_params->pti_enable)) { + DWC_ERROR + ("%d invalid for parameter pti_enable. Check HW configuration.\n", + val); + } + retval = -DWC_E_INVALID; + val = 0; + } + core_if->core_params->pti_enable = val; + return retval; +} + +int32_t dwc_otg_get_param_pti_enable(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->pti_enable; +} + +int dwc_otg_set_param_mpi_enable(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("`%d' invalid for parameter `mpi_enable'\n", val); + return -DWC_E_INVALID; + } + if (val && (core_if->hwcfg2.b.multi_proc_int == 0)) { + if (dwc_otg_param_initialized(core_if->core_params->mpi_enable)) { + DWC_ERROR + ("%d invalid for parameter mpi_enable. Check HW configuration.\n", + val); + } + retval = -DWC_E_INVALID; + val = 0; + } + core_if->core_params->mpi_enable = val; + return retval; +} + +int32_t dwc_otg_get_param_mpi_enable(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->mpi_enable; +} + +int dwc_otg_set_param_adp_enable(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("`%d' invalid for parameter `adp_enable'\n", val); + return -DWC_E_INVALID; + } + if (val && (core_if->hwcfg3.b.adp_supp == 0)) { + if (dwc_otg_param_initialized + (core_if->core_params->adp_supp_enable)) { + DWC_ERROR + ("%d invalid for parameter adp_enable. Check HW configuration.\n", + val); + } + retval = -DWC_E_INVALID; + val = 0; + } + core_if->core_params->adp_supp_enable = val; + /*Set OTG version 2.0 in case of enabling ADP*/ + if (val) + dwc_otg_set_param_otg_ver(core_if, 1); + + return retval; +} + +int32_t dwc_otg_get_param_adp_enable(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->adp_supp_enable; +} + +int dwc_otg_set_param_ic_usb_cap(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("`%d' invalid for parameter `ic_usb_cap'\n", val); + DWC_WARN("ic_usb_cap must be 0 or 1\n"); + return -DWC_E_INVALID; + } + + if (val && (core_if->hwcfg2.b.otg_enable_ic_usb == 0)) { + if (dwc_otg_param_initialized(core_if->core_params->ic_usb_cap)) { + DWC_ERROR + ("%d invalid for parameter ic_usb_cap. Check HW configuration.\n", + val); + } + retval = -DWC_E_INVALID; + val = 0; + } + core_if->core_params->ic_usb_cap = val; + return retval; +} + +int32_t dwc_otg_get_param_ic_usb_cap(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->ic_usb_cap; +} + +int dwc_otg_set_param_ahb_thr_ratio(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + int valid = 1; + + if (DWC_OTG_PARAM_TEST(val, 0, 3)) { + DWC_WARN("`%d' invalid for parameter `ahb_thr_ratio'\n", val); + DWC_WARN("ahb_thr_ratio must be 0 - 3\n"); + return -DWC_E_INVALID; + } + + if (val + && (core_if->snpsid < OTG_CORE_REV_2_81a + || !dwc_otg_get_param_thr_ctl(core_if))) { + valid = 0; + } else if (val + && ((dwc_otg_get_param_tx_thr_length(core_if) / (1 << val)) < + 4)) { + valid = 0; + } + if (valid == 0) { + if (dwc_otg_param_initialized + (core_if->core_params->ahb_thr_ratio)) { + DWC_ERROR + ("%d invalid for parameter ahb_thr_ratio. Check HW configuration.\n", + val); + } + retval = -DWC_E_INVALID; + val = 0; + } + + core_if->core_params->ahb_thr_ratio = val; + return retval; +} + +int32_t dwc_otg_get_param_ahb_thr_ratio(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->ahb_thr_ratio; +} + +int dwc_otg_set_param_power_down(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + int valid = 1; + hwcfg4_data_t hwcfg4 = {.d32 = 0 }; + hwcfg4.d32 = DWC_READ_REG32(&core_if->core_global_regs->ghwcfg4); + + if (DWC_OTG_PARAM_TEST(val, 0, 3)) { + DWC_WARN("`%d' invalid for parameter `power_down'\n", val); + DWC_WARN("power_down must be 0 - 2\n"); + return -DWC_E_INVALID; + } + + if ((val == 2) && (core_if->snpsid < OTG_CORE_REV_2_91a)) { + valid = 0; + } + if ((val == 3) + && ((core_if->snpsid < OTG_CORE_REV_3_00a) + || (hwcfg4.b.xhiber == 0))) { + valid = 0; + } + if (valid == 0) { + if (dwc_otg_param_initialized(core_if->core_params->power_down)) { + DWC_ERROR + ("%d invalid for parameter power_down. Check HW configuration.\n", + val); + } + retval = -DWC_E_INVALID; + val = 0; + } + core_if->core_params->power_down = val; + return retval; +} + +int32_t dwc_otg_get_param_power_down(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->power_down; +} + +int dwc_otg_set_param_reload_ctl(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + int valid = 1; + + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("`%d' invalid for parameter `reload_ctl'\n", val); + DWC_WARN("reload_ctl must be 0 or 1\n"); + return -DWC_E_INVALID; + } + + if ((val == 1) && (core_if->snpsid < OTG_CORE_REV_2_92a)) { + valid = 0; + } + if (valid == 0) { + if (dwc_otg_param_initialized(core_if->core_params->reload_ctl)) { + DWC_ERROR("%d invalid for parameter reload_ctl." + "Check HW configuration.\n", val); + } + retval = -DWC_E_INVALID; + val = 0; + } + core_if->core_params->reload_ctl = val; + return retval; +} + +int32_t dwc_otg_get_param_reload_ctl(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->reload_ctl; +} + +int dwc_otg_set_param_dev_out_nak(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + int valid = 1; + + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("`%d' invalid for parameter `dev_out_nak'\n", val); + DWC_WARN("dev_out_nak must be 0 or 1\n"); + return -DWC_E_INVALID; + } + + if ((val == 1) && ((core_if->snpsid < OTG_CORE_REV_2_93a) || + !(core_if->core_params->dma_desc_enable))) { + valid = 0; + } + if (valid == 0) { + if (dwc_otg_param_initialized(core_if->core_params->dev_out_nak)) { + DWC_ERROR("%d invalid for parameter dev_out_nak." + "Check HW configuration.\n", val); + } + retval = -DWC_E_INVALID; + val = 0; + } + core_if->core_params->dev_out_nak = val; + return retval; +} + +int32_t dwc_otg_get_param_dev_out_nak(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->dev_out_nak; +} + +int dwc_otg_set_param_cont_on_bna(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + int valid = 1; + + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("`%d' invalid for parameter `cont_on_bna'\n", val); + DWC_WARN("cont_on_bna must be 0 or 1\n"); + return -DWC_E_INVALID; + } + + if ((val == 1) && ((core_if->snpsid < OTG_CORE_REV_2_94a) || + !(core_if->core_params->dma_desc_enable))) { + valid = 0; + } + if (valid == 0) { + if (dwc_otg_param_initialized(core_if->core_params->cont_on_bna)) { + DWC_ERROR("%d invalid for parameter cont_on_bna." + "Check HW configuration.\n", val); + } + retval = -DWC_E_INVALID; + val = 0; + } + core_if->core_params->cont_on_bna = val; + return retval; +} + +int32_t dwc_otg_get_param_cont_on_bna(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->cont_on_bna; +} + +int dwc_otg_set_param_ahb_single(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + int valid = 1; + + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("`%d' invalid for parameter `ahb_single'\n", val); + DWC_WARN("ahb_single must be 0 or 1\n"); + return -DWC_E_INVALID; + } + + if ((val == 1) && (core_if->snpsid < OTG_CORE_REV_2_94a)) { + valid = 0; + } + if (valid == 0) { + if (dwc_otg_param_initialized(core_if->core_params->ahb_single)) { + DWC_ERROR("%d invalid for parameter ahb_single." + "Check HW configuration.\n", val); + } + retval = -DWC_E_INVALID; + val = 0; + } + core_if->core_params->ahb_single = val; + return retval; +} + +int32_t dwc_otg_get_param_ahb_single(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->ahb_single; +} + +int dwc_otg_set_param_otg_ver(dwc_otg_core_if_t * core_if, int32_t val) +{ + int retval = 0; + + if (DWC_OTG_PARAM_TEST(val, 0, 1)) { + DWC_WARN("`%d' invalid for parameter `otg_ver'\n", val); + DWC_WARN + ("otg_ver must be 0(for OTG 1.3 support) or 1(for OTG 2.0 support)\n"); + return -DWC_E_INVALID; + } + + core_if->core_params->otg_ver = val; + return retval; +} + +int32_t dwc_otg_get_param_otg_ver(dwc_otg_core_if_t * core_if) +{ + return core_if->core_params->otg_ver; +} + +uint32_t dwc_otg_get_hnpstatus(dwc_otg_core_if_t * core_if) +{ + gotgctl_data_t otgctl; + otgctl.d32 = DWC_READ_REG32(&core_if->core_global_regs->gotgctl); + return otgctl.b.hstnegscs; +} + +uint32_t dwc_otg_get_srpstatus(dwc_otg_core_if_t * core_if) +{ + gotgctl_data_t otgctl; + otgctl.d32 = DWC_READ_REG32(&core_if->core_global_regs->gotgctl); + return otgctl.b.sesreqscs; +} + +void dwc_otg_set_hnpreq(dwc_otg_core_if_t * core_if, uint32_t val) +{ + if(core_if->otg_ver == 0) { + gotgctl_data_t otgctl; + otgctl.d32 = DWC_READ_REG32(&core_if->core_global_regs->gotgctl); + otgctl.b.hnpreq = val; + DWC_WRITE_REG32(&core_if->core_global_regs->gotgctl, otgctl.d32); + } else { + core_if->otg_sts = val; + } +} + +uint32_t dwc_otg_get_gsnpsid(dwc_otg_core_if_t * core_if) +{ + return core_if->snpsid; +} + +uint32_t dwc_otg_get_mode(dwc_otg_core_if_t * core_if) +{ + gintsts_data_t gintsts; + gintsts.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintsts); + return gintsts.b.curmode; +} + +uint32_t dwc_otg_get_hnpcapable(dwc_otg_core_if_t * core_if) +{ + gusbcfg_data_t usbcfg; + usbcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->gusbcfg); + return usbcfg.b.hnpcap; +} + +void dwc_otg_set_hnpcapable(dwc_otg_core_if_t * core_if, uint32_t val) +{ + gusbcfg_data_t usbcfg; + usbcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->gusbcfg); + usbcfg.b.hnpcap = val; + DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg, usbcfg.d32); +} + +uint32_t dwc_otg_get_srpcapable(dwc_otg_core_if_t * core_if) +{ + gusbcfg_data_t usbcfg; + usbcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->gusbcfg); + return usbcfg.b.srpcap; +} + +void dwc_otg_set_srpcapable(dwc_otg_core_if_t * core_if, uint32_t val) +{ + gusbcfg_data_t usbcfg; + usbcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->gusbcfg); + usbcfg.b.srpcap = val; + DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg, usbcfg.d32); +} + +uint32_t dwc_otg_get_devspeed(dwc_otg_core_if_t * core_if) +{ + dcfg_data_t dcfg; + /* originally: dcfg.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dcfg); */ + + dcfg.d32 = -1; //GRAYG + DWC_DEBUGPL(DBG_CILV, "%s - core_if(%p)\n", __func__, core_if); + if (NULL == core_if) + DWC_ERROR("reg request with NULL core_if\n"); + DWC_DEBUGPL(DBG_CILV, "%s - core_if(%p)->dev_if(%p)\n", __func__, + core_if, core_if->dev_if); + if (NULL == core_if->dev_if) + DWC_ERROR("reg request with NULL dev_if\n"); + DWC_DEBUGPL(DBG_CILV, "%s - core_if(%p)->dev_if(%p)->" + "dev_global_regs(%p)\n", __func__, + core_if, core_if->dev_if, + core_if->dev_if->dev_global_regs); + if (NULL == core_if->dev_if->dev_global_regs) + DWC_ERROR("reg request with NULL dev_global_regs\n"); + else { + DWC_DEBUGPL(DBG_CILV, "%s - &core_if(%p)->dev_if(%p)->" + "dev_global_regs(%p)->dcfg = %p\n", __func__, + core_if, core_if->dev_if, + core_if->dev_if->dev_global_regs, + &core_if->dev_if->dev_global_regs->dcfg); + dcfg.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dcfg); + } + return dcfg.b.devspd; +} + +void dwc_otg_set_devspeed(dwc_otg_core_if_t * core_if, uint32_t val) +{ + dcfg_data_t dcfg; + dcfg.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dcfg); + dcfg.b.devspd = val; + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dcfg, dcfg.d32); +} + +uint32_t dwc_otg_get_busconnected(dwc_otg_core_if_t * core_if) +{ + hprt0_data_t hprt0; + hprt0.d32 = DWC_READ_REG32(core_if->host_if->hprt0); + return hprt0.b.prtconnsts; +} + +uint32_t dwc_otg_get_enumspeed(dwc_otg_core_if_t * core_if) +{ + dsts_data_t dsts; + dsts.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dsts); + return dsts.b.enumspd; +} + +uint32_t dwc_otg_get_prtpower(dwc_otg_core_if_t * core_if) +{ + hprt0_data_t hprt0; + hprt0.d32 = DWC_READ_REG32(core_if->host_if->hprt0); + return hprt0.b.prtpwr; + +} + +uint32_t dwc_otg_get_core_state(dwc_otg_core_if_t * core_if) +{ + return core_if->hibernation_suspend; +} + +void dwc_otg_set_prtpower(dwc_otg_core_if_t * core_if, uint32_t val) +{ + hprt0_data_t hprt0; + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtpwr = val; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); +} + +uint32_t dwc_otg_get_prtsuspend(dwc_otg_core_if_t * core_if) +{ + hprt0_data_t hprt0; + hprt0.d32 = DWC_READ_REG32(core_if->host_if->hprt0); + return hprt0.b.prtsusp; + +} + +void dwc_otg_set_prtsuspend(dwc_otg_core_if_t * core_if, uint32_t val) +{ + hprt0_data_t hprt0; + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtsusp = val; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); +} + +uint32_t dwc_otg_get_fr_interval(dwc_otg_core_if_t * core_if) +{ + hfir_data_t hfir; + hfir.d32 = DWC_READ_REG32(&core_if->host_if->host_global_regs->hfir); + return hfir.b.frint; + +} + +void dwc_otg_set_fr_interval(dwc_otg_core_if_t * core_if, uint32_t val) +{ + hfir_data_t hfir; + uint32_t fram_int; + fram_int = calc_frame_interval(core_if); + hfir.d32 = DWC_READ_REG32(&core_if->host_if->host_global_regs->hfir); + if (!core_if->core_params->reload_ctl) { + DWC_WARN("\nCannot reload HFIR register.HFIR.HFIRRldCtrl bit is" + "not set to 1.\nShould load driver with reload_ctl=1" + " module parameter\n"); + return; + } + switch (fram_int) { + case 3750: + if ((val < 3350) || (val > 4150)) { + DWC_WARN("HFIR interval for HS core and 30 MHz" + "clock freq should be from 3350 to 4150\n"); + return; + } + break; + case 30000: + if ((val < 26820) || (val > 33180)) { + DWC_WARN("HFIR interval for FS/LS core and 30 MHz" + "clock freq should be from 26820 to 33180\n"); + return; + } + break; + case 6000: + if ((val < 5360) || (val > 6640)) { + DWC_WARN("HFIR interval for HS core and 48 MHz" + "clock freq should be from 5360 to 6640\n"); + return; + } + break; + case 48000: + if ((val < 42912) || (val > 53088)) { + DWC_WARN("HFIR interval for FS/LS core and 48 MHz" + "clock freq should be from 42912 to 53088\n"); + return; + } + break; + case 7500: + if ((val < 6700) || (val > 8300)) { + DWC_WARN("HFIR interval for HS core and 60 MHz" + "clock freq should be from 6700 to 8300\n"); + return; + } + break; + case 60000: + if ((val < 53640) || (val > 65536)) { + DWC_WARN("HFIR interval for FS/LS core and 60 MHz" + "clock freq should be from 53640 to 65536\n"); + return; + } + break; + default: + DWC_WARN("Unknown frame interval\n"); + return; + break; + + } + hfir.b.frint = val; + DWC_WRITE_REG32(&core_if->host_if->host_global_regs->hfir, hfir.d32); +} + +uint32_t dwc_otg_get_mode_ch_tim(dwc_otg_core_if_t * core_if) +{ + hcfg_data_t hcfg; + hcfg.d32 = DWC_READ_REG32(&core_if->host_if->host_global_regs->hcfg); + return hcfg.b.modechtimen; + +} + +void dwc_otg_set_mode_ch_tim(dwc_otg_core_if_t * core_if, uint32_t val) +{ + hcfg_data_t hcfg; + hcfg.d32 = DWC_READ_REG32(&core_if->host_if->host_global_regs->hcfg); + hcfg.b.modechtimen = val; + DWC_WRITE_REG32(&core_if->host_if->host_global_regs->hcfg, hcfg.d32); +} + +void dwc_otg_set_prtresume(dwc_otg_core_if_t * core_if, uint32_t val) +{ + hprt0_data_t hprt0; + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtres = val; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); +} + +uint32_t dwc_otg_get_remotewakesig(dwc_otg_core_if_t * core_if) +{ + dctl_data_t dctl; + dctl.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dctl); + return dctl.b.rmtwkupsig; +} + +uint32_t dwc_otg_get_lpm_portsleepstatus(dwc_otg_core_if_t * core_if) +{ + glpmcfg_data_t lpmcfg; + lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg); + + DWC_ASSERT(! + ((core_if->lx_state == DWC_OTG_L1) ^ lpmcfg.b.prt_sleep_sts), + "lx_state = %d, lmpcfg.prt_sleep_sts = %d\n", + core_if->lx_state, lpmcfg.b.prt_sleep_sts); + + return lpmcfg.b.prt_sleep_sts; +} + +uint32_t dwc_otg_get_lpm_remotewakeenabled(dwc_otg_core_if_t * core_if) +{ + glpmcfg_data_t lpmcfg; + lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg); + return lpmcfg.b.rem_wkup_en; +} + +uint32_t dwc_otg_get_lpmresponse(dwc_otg_core_if_t * core_if) +{ + glpmcfg_data_t lpmcfg; + lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg); + return lpmcfg.b.appl_resp; +} + +void dwc_otg_set_lpmresponse(dwc_otg_core_if_t * core_if, uint32_t val) +{ + glpmcfg_data_t lpmcfg; + lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg); + lpmcfg.b.appl_resp = val; + DWC_WRITE_REG32(&core_if->core_global_regs->glpmcfg, lpmcfg.d32); +} + +uint32_t dwc_otg_get_hsic_connect(dwc_otg_core_if_t * core_if) +{ + glpmcfg_data_t lpmcfg; + lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg); + return lpmcfg.b.hsic_connect; +} + +void dwc_otg_set_hsic_connect(dwc_otg_core_if_t * core_if, uint32_t val) +{ + glpmcfg_data_t lpmcfg; + lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg); + lpmcfg.b.hsic_connect = val; + DWC_WRITE_REG32(&core_if->core_global_regs->glpmcfg, lpmcfg.d32); +} + +uint32_t dwc_otg_get_inv_sel_hsic(dwc_otg_core_if_t * core_if) +{ + glpmcfg_data_t lpmcfg; + lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg); + return lpmcfg.b.inv_sel_hsic; + +} + +void dwc_otg_set_inv_sel_hsic(dwc_otg_core_if_t * core_if, uint32_t val) +{ + glpmcfg_data_t lpmcfg; + lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg); + lpmcfg.b.inv_sel_hsic = val; + DWC_WRITE_REG32(&core_if->core_global_regs->glpmcfg, lpmcfg.d32); +} + +uint32_t dwc_otg_get_gotgctl(dwc_otg_core_if_t * core_if) +{ + return DWC_READ_REG32(&core_if->core_global_regs->gotgctl); +} + +void dwc_otg_set_gotgctl(dwc_otg_core_if_t * core_if, uint32_t val) +{ + DWC_WRITE_REG32(&core_if->core_global_regs->gotgctl, val); +} + +uint32_t dwc_otg_get_gusbcfg(dwc_otg_core_if_t * core_if) +{ + return DWC_READ_REG32(&core_if->core_global_regs->gusbcfg); +} + +void dwc_otg_set_gusbcfg(dwc_otg_core_if_t * core_if, uint32_t val) +{ + DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg, val); +} + +uint32_t dwc_otg_get_grxfsiz(dwc_otg_core_if_t * core_if) +{ + return DWC_READ_REG32(&core_if->core_global_regs->grxfsiz); +} + +void dwc_otg_set_grxfsiz(dwc_otg_core_if_t * core_if, uint32_t val) +{ + DWC_WRITE_REG32(&core_if->core_global_regs->grxfsiz, val); +} + +uint32_t dwc_otg_get_gnptxfsiz(dwc_otg_core_if_t * core_if) +{ + return DWC_READ_REG32(&core_if->core_global_regs->gnptxfsiz); +} + +void dwc_otg_set_gnptxfsiz(dwc_otg_core_if_t * core_if, uint32_t val) +{ + DWC_WRITE_REG32(&core_if->core_global_regs->gnptxfsiz, val); +} + +uint32_t dwc_otg_get_gpvndctl(dwc_otg_core_if_t * core_if) +{ + return DWC_READ_REG32(&core_if->core_global_regs->gpvndctl); +} + +void dwc_otg_set_gpvndctl(dwc_otg_core_if_t * core_if, uint32_t val) +{ + DWC_WRITE_REG32(&core_if->core_global_regs->gpvndctl, val); +} + +uint32_t dwc_otg_get_ggpio(dwc_otg_core_if_t * core_if) +{ + return DWC_READ_REG32(&core_if->core_global_regs->ggpio); +} + +void dwc_otg_set_ggpio(dwc_otg_core_if_t * core_if, uint32_t val) +{ + DWC_WRITE_REG32(&core_if->core_global_regs->ggpio, val); +} + +uint32_t dwc_otg_get_hprt0(dwc_otg_core_if_t * core_if) +{ + return DWC_READ_REG32(core_if->host_if->hprt0); + +} + +void dwc_otg_set_hprt0(dwc_otg_core_if_t * core_if, uint32_t val) +{ + DWC_WRITE_REG32(core_if->host_if->hprt0, val); +} + +uint32_t dwc_otg_get_guid(dwc_otg_core_if_t * core_if) +{ + return DWC_READ_REG32(&core_if->core_global_regs->guid); +} + +void dwc_otg_set_guid(dwc_otg_core_if_t * core_if, uint32_t val) +{ + DWC_WRITE_REG32(&core_if->core_global_regs->guid, val); +} + +uint32_t dwc_otg_get_hptxfsiz(dwc_otg_core_if_t * core_if) +{ + return DWC_READ_REG32(&core_if->core_global_regs->hptxfsiz); +} + +uint16_t dwc_otg_get_otg_version(dwc_otg_core_if_t * core_if) +{ + return ((core_if->otg_ver == 1) ? (uint16_t)0x0200 : (uint16_t)0x0103); +} + +/** + * Start the SRP timer to detect when the SRP does not complete within + * 6 seconds. + * + * @param core_if the pointer to core_if strucure. + */ +void dwc_otg_pcd_start_srp_timer(dwc_otg_core_if_t * core_if) +{ + core_if->srp_timer_started = 1; + DWC_TIMER_SCHEDULE(core_if->srp_timer, 6000 /* 6 secs */ ); +} + +void dwc_otg_initiate_srp(dwc_otg_core_if_t * core_if) +{ + uint32_t *addr = (uint32_t *) & (core_if->core_global_regs->gotgctl); + gotgctl_data_t mem; + gotgctl_data_t val; + + val.d32 = DWC_READ_REG32(addr); + if (val.b.sesreq) { + DWC_ERROR("Session Request Already active!\n"); + return; + } + + DWC_INFO("Session Request Initated\n"); //NOTICE + mem.d32 = DWC_READ_REG32(addr); + mem.b.sesreq = 1; + DWC_WRITE_REG32(addr, mem.d32); + + /* Start the SRP timer */ + dwc_otg_pcd_start_srp_timer(core_if); + return; +} diff --git a/drivers/usb/host/dwc_otg/dwc_otg_cil.h b/drivers/usb/host/dwc_otg/dwc_otg_cil.h new file mode 100644 index 0000000000000000000000000000000000000000..79dbf8374f023e262e3bfb755ff0f67604a456cb --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_cil.h @@ -0,0 +1,1464 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_cil.h $ + * $Revision: #123 $ + * $Date: 2012/08/10 $ + * $Change: 2047372 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +#if !defined(__DWC_CIL_H__) +#define __DWC_CIL_H__ + +#include "dwc_list.h" +#include "dwc_otg_dbg.h" +#include "dwc_otg_regs.h" + +#include "dwc_otg_core_if.h" +#include "dwc_otg_adp.h" + +/** + * @file + * This file contains the interface to the Core Interface Layer. + */ + +#ifdef DWC_UTE_CFI + +#define MAX_DMA_DESCS_PER_EP 256 + +/** + * Enumeration for the data buffer mode + */ +typedef enum _data_buffer_mode { + BM_STANDARD = 0, /* data buffer is in normal mode */ + BM_SG = 1, /* data buffer uses the scatter/gather mode */ + BM_CONCAT = 2, /* data buffer uses the concatenation mode */ + BM_CIRCULAR = 3, /* data buffer uses the circular DMA mode */ + BM_ALIGN = 4 /* data buffer is in buffer alignment mode */ +} data_buffer_mode_e; +#endif //DWC_UTE_CFI + +/** Macros defined for DWC OTG HW Release version */ + +#define OTG_CORE_REV_2_60a 0x4F54260A +#define OTG_CORE_REV_2_71a 0x4F54271A +#define OTG_CORE_REV_2_72a 0x4F54272A +#define OTG_CORE_REV_2_80a 0x4F54280A +#define OTG_CORE_REV_2_81a 0x4F54281A +#define OTG_CORE_REV_2_90a 0x4F54290A +#define OTG_CORE_REV_2_91a 0x4F54291A +#define OTG_CORE_REV_2_92a 0x4F54292A +#define OTG_CORE_REV_2_93a 0x4F54293A +#define OTG_CORE_REV_2_94a 0x4F54294A +#define OTG_CORE_REV_3_00a 0x4F54300A + +/** + * Information for each ISOC packet. + */ +typedef struct iso_pkt_info { + uint32_t offset; + uint32_t length; + int32_t status; +} iso_pkt_info_t; + +/** + * The dwc_ep structure represents the state of a single + * endpoint when acting in device mode. It contains the data items + * needed for an endpoint to be activated and transfer packets. + */ +typedef struct dwc_ep { + /** EP number used for register address lookup */ + uint8_t num; + /** EP direction 0 = OUT */ + unsigned is_in:1; + /** EP active. */ + unsigned active:1; + + /** + * Periodic Tx FIFO # for IN EPs For INTR EP set to 0 to use non-periodic + * Tx FIFO. If dedicated Tx FIFOs are enabled Tx FIFO # FOR IN EPs*/ + unsigned tx_fifo_num:4; + /** EP type: 0 - Control, 1 - ISOC, 2 - BULK, 3 - INTR */ + unsigned type:2; +#define DWC_OTG_EP_TYPE_CONTROL 0 +#define DWC_OTG_EP_TYPE_ISOC 1 +#define DWC_OTG_EP_TYPE_BULK 2 +#define DWC_OTG_EP_TYPE_INTR 3 + + /** DATA start PID for INTR and BULK EP */ + unsigned data_pid_start:1; + /** Frame (even/odd) for ISOC EP */ + unsigned even_odd_frame:1; + /** Max Packet bytes */ + unsigned maxpacket:11; + + /** Max Transfer size */ + uint32_t maxxfer; + + /** @name Transfer state */ + /** @{ */ + + /** + * Pointer to the beginning of the transfer buffer -- do not modify + * during transfer. + */ + + dwc_dma_t dma_addr; + + dwc_dma_t dma_desc_addr; + dwc_otg_dev_dma_desc_t *desc_addr; + + uint8_t *start_xfer_buff; + /** pointer to the transfer buffer */ + uint8_t *xfer_buff; + /** Number of bytes to transfer */ + unsigned xfer_len:19; + /** Number of bytes transferred. */ + unsigned xfer_count:19; + /** Sent ZLP */ + unsigned sent_zlp:1; + /** Total len for control transfer */ + unsigned total_len:19; + + /** stall clear flag */ + unsigned stall_clear_flag:1; + + /** SETUP pkt cnt rollover flag for EP0 out*/ + unsigned stp_rollover; + +#ifdef DWC_UTE_CFI + /* The buffer mode */ + data_buffer_mode_e buff_mode; + + /* The chain of DMA descriptors. + * MAX_DMA_DESCS_PER_EP will be allocated for each active EP. + */ + dwc_otg_dma_desc_t *descs; + + /* The DMA address of the descriptors chain start */ + dma_addr_t descs_dma_addr; + /** This variable stores the length of the last enqueued request */ + uint32_t cfi_req_len; +#endif //DWC_UTE_CFI + +/** Max DMA Descriptor count for any EP */ +#define MAX_DMA_DESC_CNT 256 + /** Allocated DMA Desc count */ + uint32_t desc_cnt; + + /** bInterval */ + uint32_t bInterval; + /** Next frame num to setup next ISOC transfer */ + uint32_t frame_num; + /** Indicates SOF number overrun in DSTS */ + uint8_t frm_overrun; + +#ifdef DWC_UTE_PER_IO + /** Next frame num for which will be setup DMA Desc */ + uint32_t xiso_frame_num; + /** bInterval */ + uint32_t xiso_bInterval; + /** Count of currently active transfers - shall be either 0 or 1 */ + int xiso_active_xfers; + int xiso_queued_xfers; +#endif +#ifdef DWC_EN_ISOC + /** + * Variables specific for ISOC EPs + * + */ + /** DMA addresses of ISOC buffers */ + dwc_dma_t dma_addr0; + dwc_dma_t dma_addr1; + + dwc_dma_t iso_dma_desc_addr; + dwc_otg_dev_dma_desc_t *iso_desc_addr; + + /** pointer to the transfer buffers */ + uint8_t *xfer_buff0; + uint8_t *xfer_buff1; + + /** number of ISOC Buffer is processing */ + uint32_t proc_buf_num; + /** Interval of ISOC Buffer processing */ + uint32_t buf_proc_intrvl; + /** Data size for regular frame */ + uint32_t data_per_frame; + + /* todo - pattern data support is to be implemented in the future */ + /** Data size for pattern frame */ + uint32_t data_pattern_frame; + /** Frame number of pattern data */ + uint32_t sync_frame; + + /** bInterval */ + uint32_t bInterval; + /** ISO Packet number per frame */ + uint32_t pkt_per_frm; + /** Next frame num for which will be setup DMA Desc */ + uint32_t next_frame; + /** Number of packets per buffer processing */ + uint32_t pkt_cnt; + /** Info for all isoc packets */ + iso_pkt_info_t *pkt_info; + /** current pkt number */ + uint32_t cur_pkt; + /** current pkt number */ + uint8_t *cur_pkt_addr; + /** current pkt number */ + uint32_t cur_pkt_dma_addr; +#endif /* DWC_EN_ISOC */ + +/** @} */ +} dwc_ep_t; + +/* + * Reasons for halting a host channel. + */ +typedef enum dwc_otg_halt_status { + DWC_OTG_HC_XFER_NO_HALT_STATUS, + DWC_OTG_HC_XFER_COMPLETE, + DWC_OTG_HC_XFER_URB_COMPLETE, + DWC_OTG_HC_XFER_ACK, + DWC_OTG_HC_XFER_NAK, + DWC_OTG_HC_XFER_NYET, + DWC_OTG_HC_XFER_STALL, + DWC_OTG_HC_XFER_XACT_ERR, + DWC_OTG_HC_XFER_FRAME_OVERRUN, + DWC_OTG_HC_XFER_BABBLE_ERR, + DWC_OTG_HC_XFER_DATA_TOGGLE_ERR, + DWC_OTG_HC_XFER_AHB_ERR, + DWC_OTG_HC_XFER_PERIODIC_INCOMPLETE, + DWC_OTG_HC_XFER_URB_DEQUEUE +} dwc_otg_halt_status_e; + +/** + * Host channel descriptor. This structure represents the state of a single + * host channel when acting in host mode. It contains the data items needed to + * transfer packets to an endpoint via a host channel. + */ +typedef struct dwc_hc { + /** Host channel number used for register address lookup */ + uint8_t hc_num; + + /** Device to access */ + unsigned dev_addr:7; + + /** EP to access */ + unsigned ep_num:4; + + /** EP direction. 0: OUT, 1: IN */ + unsigned ep_is_in:1; + + /** + * EP speed. + * One of the following values: + * - DWC_OTG_EP_SPEED_LOW + * - DWC_OTG_EP_SPEED_FULL + * - DWC_OTG_EP_SPEED_HIGH + */ + unsigned speed:2; +#define DWC_OTG_EP_SPEED_LOW 0 +#define DWC_OTG_EP_SPEED_FULL 1 +#define DWC_OTG_EP_SPEED_HIGH 2 + + /** + * Endpoint type. + * One of the following values: + * - DWC_OTG_EP_TYPE_CONTROL: 0 + * - DWC_OTG_EP_TYPE_ISOC: 1 + * - DWC_OTG_EP_TYPE_BULK: 2 + * - DWC_OTG_EP_TYPE_INTR: 3 + */ + unsigned ep_type:2; + + /** Max packet size in bytes */ + unsigned max_packet:11; + + /** + * PID for initial transaction. + * 0: DATA0,
+ * 1: DATA2,
+ * 2: DATA1,
+ * 3: MDATA (non-Control EP), + * SETUP (Control EP) + */ + unsigned data_pid_start:2; +#define DWC_OTG_HC_PID_DATA0 0 +#define DWC_OTG_HC_PID_DATA2 1 +#define DWC_OTG_HC_PID_DATA1 2 +#define DWC_OTG_HC_PID_MDATA 3 +#define DWC_OTG_HC_PID_SETUP 3 + + /** Number of periodic transactions per (micro)frame */ + unsigned multi_count:2; + + /** @name Transfer State */ + /** @{ */ + + /** Pointer to the current transfer buffer position. */ + uint8_t *xfer_buff; + /** + * In Buffer DMA mode this buffer will be used + * if xfer_buff is not DWORD aligned. + */ + dwc_dma_t align_buff; + /** Total number of bytes to transfer. */ + uint32_t xfer_len; + /** Number of bytes transferred so far. */ + uint32_t xfer_count; + /** Packet count at start of transfer.*/ + uint16_t start_pkt_count; + + /** + * Flag to indicate whether the transfer has been started. Set to 1 if + * it has been started, 0 otherwise. + */ + uint8_t xfer_started; + + /** + * Set to 1 to indicate that a PING request should be issued on this + * channel. If 0, process normally. + */ + uint8_t do_ping; + + /** + * Set to 1 to indicate that the error count for this transaction is + * non-zero. Set to 0 if the error count is 0. + */ + uint8_t error_state; + + /** + * Set to 1 to indicate that this channel should be halted the next + * time a request is queued for the channel. This is necessary in + * slave mode if no request queue space is available when an attempt + * is made to halt the channel. + */ + uint8_t halt_on_queue; + + /** + * Set to 1 if the host channel has been halted, but the core is not + * finished flushing queued requests. Otherwise 0. + */ + uint8_t halt_pending; + + /** + * Reason for halting the host channel. + */ + dwc_otg_halt_status_e halt_status; + + /* + * Split settings for the host channel + */ + uint8_t do_split; /**< Enable split for the channel */ + uint8_t complete_split; /**< Enable complete split */ + uint8_t hub_addr; /**< Address of high speed hub */ + + uint8_t port_addr; /**< Port of the low/full speed device */ + /** Split transaction position + * One of the following values: + * - DWC_HCSPLIT_XACTPOS_MID + * - DWC_HCSPLIT_XACTPOS_BEGIN + * - DWC_HCSPLIT_XACTPOS_END + * - DWC_HCSPLIT_XACTPOS_ALL */ + uint8_t xact_pos; + + /** Set when the host channel does a short read. */ + uint8_t short_read; + + /** + * Number of requests issued for this channel since it was assigned to + * the current transfer (not counting PINGs). + */ + uint8_t requests; + + /** + * Queue Head for the transfer being processed by this channel. + */ + struct dwc_otg_qh *qh; + + /** @} */ + + /** Entry in list of host channels. */ + DWC_CIRCLEQ_ENTRY(dwc_hc) hc_list_entry; + + /** @name Descriptor DMA support */ + /** @{ */ + + /** Number of Transfer Descriptors */ + uint16_t ntd; + + /** Descriptor List DMA address */ + dwc_dma_t desc_list_addr; + + /** Scheduling micro-frame bitmap. */ + uint8_t schinfo; + + /** @} */ +} dwc_hc_t; + +/** + * The following parameters may be specified when starting the module. These + * parameters define how the DWC_otg controller should be configured. + */ +typedef struct dwc_otg_core_params { + int32_t opt; + + /** + * Specifies the OTG capabilities. The driver will automatically + * detect the value for this parameter if none is specified. + * 0 - HNP and SRP capable (default) + * 1 - SRP Only capable + * 2 - No HNP/SRP capable + */ + int32_t otg_cap; + + /** + * Specifies whether to use slave or DMA mode for accessing the data + * FIFOs. The driver will automatically detect the value for this + * parameter if none is specified. + * 0 - Slave + * 1 - DMA (default, if available) + */ + int32_t dma_enable; + + /** + * When DMA mode is enabled specifies whether to use address DMA or DMA + * Descriptor mode for accessing the data FIFOs in device mode. The driver + * will automatically detect the value for this if none is specified. + * 0 - address DMA + * 1 - DMA Descriptor(default, if available) + */ + int32_t dma_desc_enable; + /** The DMA Burst size (applicable only for External DMA + * Mode). 1, 4, 8 16, 32, 64, 128, 256 (default 32) + */ + int32_t dma_burst_size; /* Translate this to GAHBCFG values */ + + /** + * Specifies the maximum speed of operation in host and device mode. + * The actual speed depends on the speed of the attached device and + * the value of phy_type. The actual speed depends on the speed of the + * attached device. + * 0 - High Speed (default) + * 1 - Full Speed + */ + int32_t speed; + /** Specifies whether low power mode is supported when attached + * to a Full Speed or Low Speed device in host mode. + * 0 - Don't support low power mode (default) + * 1 - Support low power mode + */ + int32_t host_support_fs_ls_low_power; + + /** Specifies the PHY clock rate in low power mode when connected to a + * Low Speed device in host mode. This parameter is applicable only if + * HOST_SUPPORT_FS_LS_LOW_POWER is enabled. If PHY_TYPE is set to FS + * then defaults to 6 MHZ otherwise 48 MHZ. + * + * 0 - 48 MHz + * 1 - 6 MHz + */ + int32_t host_ls_low_power_phy_clk; + + /** + * 0 - Use cC FIFO size parameters + * 1 - Allow dynamic FIFO sizing (default) + */ + int32_t enable_dynamic_fifo; + + /** Total number of 4-byte words in the data FIFO memory. This + * memory includes the Rx FIFO, non-periodic Tx FIFO, and periodic + * Tx FIFOs. + * 32 to 32768 (default 8192) + * Note: The total FIFO memory depth in the FPGA configuration is 8192. + */ + int32_t data_fifo_size; + + /** Number of 4-byte words in the Rx FIFO in device mode when dynamic + * FIFO sizing is enabled. + * 16 to 32768 (default 1064) + */ + int32_t dev_rx_fifo_size; + + /** Number of 4-byte words in the non-periodic Tx FIFO in device mode + * when dynamic FIFO sizing is enabled. + * 16 to 32768 (default 1024) + */ + int32_t dev_nperio_tx_fifo_size; + + /** Number of 4-byte words in each of the periodic Tx FIFOs in device + * mode when dynamic FIFO sizing is enabled. + * 4 to 768 (default 256) + */ + uint32_t dev_perio_tx_fifo_size[MAX_PERIO_FIFOS]; + + /** Number of 4-byte words in the Rx FIFO in host mode when dynamic + * FIFO sizing is enabled. + * 16 to 32768 (default 1024) + */ + int32_t host_rx_fifo_size; + + /** Number of 4-byte words in the non-periodic Tx FIFO in host mode + * when Dynamic FIFO sizing is enabled in the core. + * 16 to 32768 (default 1024) + */ + int32_t host_nperio_tx_fifo_size; + + /** Number of 4-byte words in the host periodic Tx FIFO when dynamic + * FIFO sizing is enabled. + * 16 to 32768 (default 1024) + */ + int32_t host_perio_tx_fifo_size; + + /** The maximum transfer size supported in bytes. + * 2047 to 65,535 (default 65,535) + */ + int32_t max_transfer_size; + + /** The maximum number of packets in a transfer. + * 15 to 511 (default 511) + */ + int32_t max_packet_count; + + /** The number of host channel registers to use. + * 1 to 16 (default 12) + * Note: The FPGA configuration supports a maximum of 12 host channels. + */ + int32_t host_channels; + + /** The number of endpoints in addition to EP0 available for device + * mode operations. + * 1 to 15 (default 6 IN and OUT) + * Note: The FPGA configuration supports a maximum of 6 IN and OUT + * endpoints in addition to EP0. + */ + int32_t dev_endpoints; + + /** + * Specifies the type of PHY interface to use. By default, the driver + * will automatically detect the phy_type. + * + * 0 - Full Speed PHY + * 1 - UTMI+ (default) + * 2 - ULPI + */ + int32_t phy_type; + + /** + * Specifies the UTMI+ Data Width. This parameter is + * applicable for a PHY_TYPE of UTMI+ or ULPI. (For a ULPI + * PHY_TYPE, this parameter indicates the data width between + * the MAC and the ULPI Wrapper.) Also, this parameter is + * applicable only if the OTG_HSPHY_WIDTH cC parameter was set + * to "8 and 16 bits", meaning that the core has been + * configured to work at either data path width. + * + * 8 or 16 bits (default 16) + */ + int32_t phy_utmi_width; + + /** + * Specifies whether the ULPI operates at double or single + * data rate. This parameter is only applicable if PHY_TYPE is + * ULPI. + * + * 0 - single data rate ULPI interface with 8 bit wide data + * bus (default) + * 1 - double data rate ULPI interface with 4 bit wide data + * bus + */ + int32_t phy_ulpi_ddr; + + /** + * Specifies whether to use the internal or external supply to + * drive the vbus with a ULPI phy. + */ + int32_t phy_ulpi_ext_vbus; + + /** + * Specifies whether to use the I2Cinterface for full speed PHY. This + * parameter is only applicable if PHY_TYPE is FS. + * 0 - No (default) + * 1 - Yes + */ + int32_t i2c_enable; + + int32_t ulpi_fs_ls; + + int32_t ts_dline; + + /** + * Specifies whether dedicated transmit FIFOs are + * enabled for non periodic IN endpoints in device mode + * 0 - No + * 1 - Yes + */ + int32_t en_multiple_tx_fifo; + + /** Number of 4-byte words in each of the Tx FIFOs in device + * mode when dynamic FIFO sizing is enabled. + * 4 to 768 (default 256) + */ + uint32_t dev_tx_fifo_size[MAX_TX_FIFOS]; + + /** Thresholding enable flag- + * bit 0 - enable non-ISO Tx thresholding + * bit 1 - enable ISO Tx thresholding + * bit 2 - enable Rx thresholding + */ + uint32_t thr_ctl; + + /** Thresholding length for Tx + * FIFOs in 32 bit DWORDs + */ + uint32_t tx_thr_length; + + /** Thresholding length for Rx + * FIFOs in 32 bit DWORDs + */ + uint32_t rx_thr_length; + + /** + * Specifies whether LPM (Link Power Management) support is enabled + */ + int32_t lpm_enable; + + /** Per Transfer Interrupt + * mode enable flag + * 1 - Enabled + * 0 - Disabled + */ + int32_t pti_enable; + + /** Multi Processor Interrupt + * mode enable flag + * 1 - Enabled + * 0 - Disabled + */ + int32_t mpi_enable; + + /** IS_USB Capability + * 1 - Enabled + * 0 - Disabled + */ + int32_t ic_usb_cap; + + /** AHB Threshold Ratio + * 2'b00 AHB Threshold = MAC Threshold + * 2'b01 AHB Threshold = 1/2 MAC Threshold + * 2'b10 AHB Threshold = 1/4 MAC Threshold + * 2'b11 AHB Threshold = 1/8 MAC Threshold + */ + int32_t ahb_thr_ratio; + + /** ADP Support + * 1 - Enabled + * 0 - Disabled + */ + int32_t adp_supp_enable; + + /** HFIR Reload Control + * 0 - The HFIR cannot be reloaded dynamically. + * 1 - Allow dynamic reloading of the HFIR register during runtime. + */ + int32_t reload_ctl; + + /** DCFG: Enable device Out NAK + * 0 - The core does not set NAK after Bulk Out transfer complete. + * 1 - The core sets NAK after Bulk OUT transfer complete. + */ + int32_t dev_out_nak; + + /** DCFG: Enable Continue on BNA + * After receiving BNA interrupt the core disables the endpoint,when the + * endpoint is re-enabled by the application the core starts processing + * 0 - from the DOEPDMA descriptor + * 1 - from the descriptor which received the BNA. + */ + int32_t cont_on_bna; + + /** GAHBCFG: AHB Single Support + * This bit when programmed supports SINGLE transfers for remainder + * data in a transfer for DMA mode of operation. + * 0 - in this case the remainder data will be sent using INCR burst size. + * 1 - in this case the remainder data will be sent using SINGLE burst size. + */ + int32_t ahb_single; + + /** Core Power down mode + * 0 - No Power Down is enabled + * 1 - Reserved + * 2 - Complete Power Down (Hibernation) + */ + int32_t power_down; + + /** OTG revision supported + * 0 - OTG 1.3 revision + * 1 - OTG 2.0 revision + */ + int32_t otg_ver; + +} dwc_otg_core_params_t; + +#ifdef DEBUG +struct dwc_otg_core_if; +typedef struct hc_xfer_info { + struct dwc_otg_core_if *core_if; + dwc_hc_t *hc; +} hc_xfer_info_t; +#endif + +typedef struct ep_xfer_info { + struct dwc_otg_core_if *core_if; + dwc_ep_t *ep; + uint8_t state; +} ep_xfer_info_t; +/* + * Device States + */ +typedef enum dwc_otg_lx_state { + /** On state */ + DWC_OTG_L0, + /** LPM sleep state*/ + DWC_OTG_L1, + /** USB suspend state*/ + DWC_OTG_L2, + /** Off state*/ + DWC_OTG_L3 +} dwc_otg_lx_state_e; + +struct dwc_otg_global_regs_backup { + uint32_t gotgctl_local; + uint32_t gintmsk_local; + uint32_t gahbcfg_local; + uint32_t gusbcfg_local; + uint32_t grxfsiz_local; + uint32_t gnptxfsiz_local; +#ifdef CONFIG_USB_DWC_OTG_LPM + uint32_t glpmcfg_local; +#endif + uint32_t gi2cctl_local; + uint32_t hptxfsiz_local; + uint32_t pcgcctl_local; + uint32_t gdfifocfg_local; + uint32_t dtxfsiz_local[MAX_EPS_CHANNELS]; + uint32_t gpwrdn_local; + uint32_t xhib_pcgcctl; + uint32_t xhib_gpwrdn; +}; + +struct dwc_otg_host_regs_backup { + uint32_t hcfg_local; + uint32_t haintmsk_local; + uint32_t hcintmsk_local[MAX_EPS_CHANNELS]; + uint32_t hprt0_local; + uint32_t hfir_local; +}; + +struct dwc_otg_dev_regs_backup { + uint32_t dcfg; + uint32_t dctl; + uint32_t daintmsk; + uint32_t diepmsk; + uint32_t doepmsk; + uint32_t diepctl[MAX_EPS_CHANNELS]; + uint32_t dieptsiz[MAX_EPS_CHANNELS]; + uint32_t diepdma[MAX_EPS_CHANNELS]; +}; +/** + * The dwc_otg_core_if structure contains information needed to manage + * the DWC_otg controller acting in either host or device mode. It + * represents the programming view of the controller as a whole. + */ +struct dwc_otg_core_if { + /** Parameters that define how the core should be configured.*/ + dwc_otg_core_params_t *core_params; + + /** Core Global registers starting at offset 000h. */ + dwc_otg_core_global_regs_t *core_global_regs; + + /** Device-specific information */ + dwc_otg_dev_if_t *dev_if; + /** Host-specific information */ + dwc_otg_host_if_t *host_if; + + /** Value from SNPSID register */ + uint32_t snpsid; + + /* + * Set to 1 if the core PHY interface bits in USBCFG have been + * initialized. + */ + uint8_t phy_init_done; + + /* + * SRP Success flag, set by srp success interrupt in FS I2C mode + */ + uint8_t srp_success; + uint8_t srp_timer_started; + /** Timer for SRP. If it expires before SRP is successful + * clear the SRP. */ + dwc_timer_t *srp_timer; + +#ifdef DWC_DEV_SRPCAP + /* This timer is needed to power on the hibernated host core if SRP is not + * initiated on connected SRP capable device for limited period of time + */ + uint8_t pwron_timer_started; + dwc_timer_t *pwron_timer; +#endif + /* Common configuration information */ + /** Power and Clock Gating Control Register */ + volatile uint32_t *pcgcctl; +#define DWC_OTG_PCGCCTL_OFFSET 0xE00 + + /** Push/pop addresses for endpoints or host channels.*/ + uint32_t *data_fifo[MAX_EPS_CHANNELS]; +#define DWC_OTG_DATA_FIFO_OFFSET 0x1000 +#define DWC_OTG_DATA_FIFO_SIZE 0x1000 + + /** Total RAM for FIFOs (Bytes) */ + uint16_t total_fifo_size; + /** Size of Rx FIFO (Bytes) */ + uint16_t rx_fifo_size; + /** Size of Non-periodic Tx FIFO (Bytes) */ + uint16_t nperio_tx_fifo_size; + + /** 1 if DMA is enabled, 0 otherwise. */ + uint8_t dma_enable; + + /** 1 if DMA descriptor is enabled, 0 otherwise. */ + uint8_t dma_desc_enable; + + /** 1 if PTI Enhancement mode is enabled, 0 otherwise. */ + uint8_t pti_enh_enable; + + /** 1 if MPI Enhancement mode is enabled, 0 otherwise. */ + uint8_t multiproc_int_enable; + + /** 1 if dedicated Tx FIFOs are enabled, 0 otherwise. */ + uint8_t en_multiple_tx_fifo; + + /** Set to 1 if multiple packets of a high-bandwidth transfer is in + * process of being queued */ + uint8_t queuing_high_bandwidth; + + /** Hardware Configuration -- stored here for convenience.*/ + hwcfg1_data_t hwcfg1; + hwcfg2_data_t hwcfg2; + hwcfg3_data_t hwcfg3; + hwcfg4_data_t hwcfg4; + fifosize_data_t hptxfsiz; + + /** Host and Device Configuration -- stored here for convenience.*/ + hcfg_data_t hcfg; + dcfg_data_t dcfg; + + /** The operational State, during transations + * (a_host>>a_peripherial and b_device=>b_host) this may not + * match the core but allows the software to determine + * transitions. + */ + uint8_t op_state; + + /** + * Set to 1 if the HCD needs to be restarted on a session request + * interrupt. This is required if no connector ID status change has + * occurred since the HCD was last disconnected. + */ + uint8_t restart_hcd_on_session_req; + + /** HCD callbacks */ + /** A-Device is a_host */ +#define A_HOST (1) + /** A-Device is a_suspend */ +#define A_SUSPEND (2) + /** A-Device is a_peripherial */ +#define A_PERIPHERAL (3) + /** B-Device is operating as a Peripheral. */ +#define B_PERIPHERAL (4) + /** B-Device is operating as a Host. */ +#define B_HOST (5) + + /** HCD callbacks */ + struct dwc_otg_cil_callbacks *hcd_cb; + /** PCD callbacks */ + struct dwc_otg_cil_callbacks *pcd_cb; + + /** Device mode Periodic Tx FIFO Mask */ + uint32_t p_tx_msk; + /** Device mode Periodic Tx FIFO Mask */ + uint32_t tx_msk; + + /** Workqueue object used for handling several interrupts */ + dwc_workq_t *wq_otg; + + /** Timer object used for handling "Wakeup Detected" Interrupt */ + dwc_timer_t *wkp_timer; + /** This arrays used for debug purposes for DEV OUT NAK enhancement */ + uint32_t start_doeptsiz_val[MAX_EPS_CHANNELS]; + ep_xfer_info_t ep_xfer_info[MAX_EPS_CHANNELS]; + dwc_timer_t *ep_xfer_timer[MAX_EPS_CHANNELS]; +#ifdef DEBUG + uint32_t start_hcchar_val[MAX_EPS_CHANNELS]; + + hc_xfer_info_t hc_xfer_info[MAX_EPS_CHANNELS]; + dwc_timer_t *hc_xfer_timer[MAX_EPS_CHANNELS]; + + uint32_t hfnum_7_samples; + uint64_t hfnum_7_frrem_accum; + uint32_t hfnum_0_samples; + uint64_t hfnum_0_frrem_accum; + uint32_t hfnum_other_samples; + uint64_t hfnum_other_frrem_accum; +#endif + +#ifdef DWC_UTE_CFI + uint16_t pwron_rxfsiz; + uint16_t pwron_gnptxfsiz; + uint16_t pwron_txfsiz[15]; + + uint16_t init_rxfsiz; + uint16_t init_gnptxfsiz; + uint16_t init_txfsiz[15]; +#endif + + /** Lx state of device */ + dwc_otg_lx_state_e lx_state; + + /** Saved Core Global registers */ + struct dwc_otg_global_regs_backup *gr_backup; + /** Saved Host registers */ + struct dwc_otg_host_regs_backup *hr_backup; + /** Saved Device registers */ + struct dwc_otg_dev_regs_backup *dr_backup; + + /** Power Down Enable */ + uint32_t power_down; + + /** ADP support Enable */ + uint32_t adp_enable; + + /** ADP structure object */ + dwc_otg_adp_t adp; + + /** hibernation/suspend flag */ + int hibernation_suspend; + + /** Device mode extended hibernation flag */ + int xhib; + + /** OTG revision supported */ + uint32_t otg_ver; + + /** OTG status flag used for HNP polling */ + uint8_t otg_sts; + + /** Pointer to either hcd->lock or pcd->lock */ + dwc_spinlock_t *lock; + + /** Start predict NextEP based on Learning Queue if equal 1, + * also used as counter of disabled NP IN EP's */ + uint8_t start_predict; + + /** NextEp sequence, including EP0: nextep_seq[] = EP if non-periodic and + * active, 0xff otherwise */ + uint8_t nextep_seq[MAX_EPS_CHANNELS]; + + /** Index of fisrt EP in nextep_seq array which should be re-enabled **/ + uint8_t first_in_nextep_seq; + + /** Frame number while entering to ISR - needed for ISOCs **/ + uint32_t frame_num; + +}; + +#ifdef DEBUG +/* + * This function is called when transfer is timed out. + */ +extern void hc_xfer_timeout(void *ptr); +#endif + +/* + * This function is called when transfer is timed out on endpoint. + */ +extern void ep_xfer_timeout(void *ptr); + +/* + * The following functions are functions for works + * using during handling some interrupts + */ +extern void w_conn_id_status_change(void *p); + +extern void w_wakeup_detected(void *p); + +/** Saves global register values into system memory. */ +extern int dwc_otg_save_global_regs(dwc_otg_core_if_t * core_if); +/** Saves device register values into system memory. */ +extern int dwc_otg_save_dev_regs(dwc_otg_core_if_t * core_if); +/** Saves host register values into system memory. */ +extern int dwc_otg_save_host_regs(dwc_otg_core_if_t * core_if); +/** Restore global register values. */ +extern int dwc_otg_restore_global_regs(dwc_otg_core_if_t * core_if); +/** Restore host register values. */ +extern int dwc_otg_restore_host_regs(dwc_otg_core_if_t * core_if, int reset); +/** Restore device register values. */ +extern int dwc_otg_restore_dev_regs(dwc_otg_core_if_t * core_if, + int rem_wakeup); +extern int restore_lpm_i2c_regs(dwc_otg_core_if_t * core_if); +extern int restore_essential_regs(dwc_otg_core_if_t * core_if, int rmode, + int is_host); + +extern int dwc_otg_host_hibernation_restore(dwc_otg_core_if_t * core_if, + int restore_mode, int reset); +extern int dwc_otg_device_hibernation_restore(dwc_otg_core_if_t * core_if, + int rem_wakeup, int reset); + +/* + * The following functions support initialization of the CIL driver component + * and the DWC_otg controller. + */ +extern void dwc_otg_core_host_init(dwc_otg_core_if_t * _core_if); +extern void dwc_otg_core_dev_init(dwc_otg_core_if_t * _core_if); + +/** @name Device CIL Functions + * The following functions support managing the DWC_otg controller in device + * mode. + */ +/**@{*/ +extern void dwc_otg_wakeup(dwc_otg_core_if_t * _core_if); +extern void dwc_otg_read_setup_packet(dwc_otg_core_if_t * _core_if, + uint32_t * _dest); +extern uint32_t dwc_otg_get_frame_number(dwc_otg_core_if_t * _core_if); +extern void dwc_otg_ep0_activate(dwc_otg_core_if_t * _core_if, dwc_ep_t * _ep); +extern void dwc_otg_ep_activate(dwc_otg_core_if_t * _core_if, dwc_ep_t * _ep); +extern void dwc_otg_ep_deactivate(dwc_otg_core_if_t * _core_if, dwc_ep_t * _ep); +extern void dwc_otg_ep_start_transfer(dwc_otg_core_if_t * _core_if, + dwc_ep_t * _ep); +extern void dwc_otg_ep_start_zl_transfer(dwc_otg_core_if_t * _core_if, + dwc_ep_t * _ep); +extern void dwc_otg_ep0_start_transfer(dwc_otg_core_if_t * _core_if, + dwc_ep_t * _ep); +extern void dwc_otg_ep0_continue_transfer(dwc_otg_core_if_t * _core_if, + dwc_ep_t * _ep); +extern void dwc_otg_ep_write_packet(dwc_otg_core_if_t * _core_if, + dwc_ep_t * _ep, int _dma); +extern void dwc_otg_ep_set_stall(dwc_otg_core_if_t * _core_if, dwc_ep_t * _ep); +extern void dwc_otg_ep_clear_stall(dwc_otg_core_if_t * _core_if, + dwc_ep_t * _ep); +extern void dwc_otg_enable_device_interrupts(dwc_otg_core_if_t * _core_if); + +#ifdef DWC_EN_ISOC +extern void dwc_otg_iso_ep_start_frm_transfer(dwc_otg_core_if_t * core_if, + dwc_ep_t * ep); +extern void dwc_otg_iso_ep_start_buf_transfer(dwc_otg_core_if_t * core_if, + dwc_ep_t * ep); +#endif /* DWC_EN_ISOC */ +/**@}*/ + +/** @name Host CIL Functions + * The following functions support managing the DWC_otg controller in host + * mode. + */ +/**@{*/ +extern void dwc_otg_hc_init(dwc_otg_core_if_t * _core_if, dwc_hc_t * _hc); +extern void dwc_otg_hc_halt(dwc_otg_core_if_t * _core_if, + dwc_hc_t * _hc, dwc_otg_halt_status_e _halt_status); +extern void dwc_otg_hc_cleanup(dwc_otg_core_if_t * _core_if, dwc_hc_t * _hc); +extern void dwc_otg_hc_start_transfer(dwc_otg_core_if_t * _core_if, + dwc_hc_t * _hc); +extern int dwc_otg_hc_continue_transfer(dwc_otg_core_if_t * _core_if, + dwc_hc_t * _hc); +extern void dwc_otg_hc_do_ping(dwc_otg_core_if_t * _core_if, dwc_hc_t * _hc); +extern void dwc_otg_hc_write_packet(dwc_otg_core_if_t * _core_if, + dwc_hc_t * _hc); +extern void dwc_otg_enable_host_interrupts(dwc_otg_core_if_t * _core_if); +extern void dwc_otg_disable_host_interrupts(dwc_otg_core_if_t * _core_if); + +extern void dwc_otg_hc_start_transfer_ddma(dwc_otg_core_if_t * core_if, + dwc_hc_t * hc); + +extern uint32_t calc_frame_interval(dwc_otg_core_if_t * core_if); + +/* Macro used to clear one channel interrupt */ +#define clear_hc_int(_hc_regs_, _intr_) \ +do { \ + hcint_data_t hcint_clear = {.d32 = 0}; \ + hcint_clear.b._intr_ = 1; \ + DWC_WRITE_REG32(&(_hc_regs_)->hcint, hcint_clear.d32); \ +} while (0) + +/* + * Macro used to disable one channel interrupt. Channel interrupts are + * disabled when the channel is halted or released by the interrupt handler. + * There is no need to handle further interrupts of that type until the + * channel is re-assigned. In fact, subsequent handling may cause crashes + * because the channel structures are cleaned up when the channel is released. + */ +#define disable_hc_int(_hc_regs_, _intr_) \ +do { \ + hcintmsk_data_t hcintmsk = {.d32 = 0}; \ + hcintmsk.b._intr_ = 1; \ + DWC_MODIFY_REG32(&(_hc_regs_)->hcintmsk, hcintmsk.d32, 0); \ +} while (0) + +/** + * This function Reads HPRT0 in preparation to modify. It keeps the + * WC bits 0 so that if they are read as 1, they won't clear when you + * write it back + */ +static inline uint32_t dwc_otg_read_hprt0(dwc_otg_core_if_t * _core_if) +{ + hprt0_data_t hprt0; + hprt0.d32 = DWC_READ_REG32(_core_if->host_if->hprt0); + hprt0.b.prtena = 0; + hprt0.b.prtconndet = 0; + hprt0.b.prtenchng = 0; + hprt0.b.prtovrcurrchng = 0; + return hprt0.d32; +} + +/**@}*/ + +/** @name Common CIL Functions + * The following functions support managing the DWC_otg controller in either + * device or host mode. + */ +/**@{*/ + +extern void dwc_otg_read_packet(dwc_otg_core_if_t * core_if, + uint8_t * dest, uint16_t bytes); + +extern void dwc_otg_flush_tx_fifo(dwc_otg_core_if_t * _core_if, const int _num); +extern void dwc_otg_flush_rx_fifo(dwc_otg_core_if_t * _core_if); +extern void dwc_otg_core_reset(dwc_otg_core_if_t * _core_if); + +/** + * This function returns the Core Interrupt register. + */ +static inline uint32_t dwc_otg_read_core_intr(dwc_otg_core_if_t * core_if) +{ + return (DWC_READ_REG32(&core_if->core_global_regs->gintsts) & + DWC_READ_REG32(&core_if->core_global_regs->gintmsk)); +} + +/** + * This function returns the OTG Interrupt register. + */ +static inline uint32_t dwc_otg_read_otg_intr(dwc_otg_core_if_t * core_if) +{ + return (DWC_READ_REG32(&core_if->core_global_regs->gotgint)); +} + +/** + * This function reads the Device All Endpoints Interrupt register and + * returns the IN endpoint interrupt bits. + */ +static inline uint32_t dwc_otg_read_dev_all_in_ep_intr(dwc_otg_core_if_t * + core_if) +{ + + uint32_t v; + + if (core_if->multiproc_int_enable) { + v = DWC_READ_REG32(&core_if->dev_if-> + dev_global_regs->deachint) & + DWC_READ_REG32(&core_if-> + dev_if->dev_global_regs->deachintmsk); + } else { + v = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->daint) & + DWC_READ_REG32(&core_if->dev_if->dev_global_regs->daintmsk); + } + return (v & 0xffff); +} + +/** + * This function reads the Device All Endpoints Interrupt register and + * returns the OUT endpoint interrupt bits. + */ +static inline uint32_t dwc_otg_read_dev_all_out_ep_intr(dwc_otg_core_if_t * + core_if) +{ + uint32_t v; + + if (core_if->multiproc_int_enable) { + v = DWC_READ_REG32(&core_if->dev_if-> + dev_global_regs->deachint) & + DWC_READ_REG32(&core_if-> + dev_if->dev_global_regs->deachintmsk); + } else { + v = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->daint) & + DWC_READ_REG32(&core_if->dev_if->dev_global_regs->daintmsk); + } + + return ((v & 0xffff0000) >> 16); +} + +/** + * This function returns the Device IN EP Interrupt register + */ +static inline uint32_t dwc_otg_read_dev_in_ep_intr(dwc_otg_core_if_t * core_if, + dwc_ep_t * ep) +{ + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + uint32_t v, msk, emp; + + if (core_if->multiproc_int_enable) { + msk = + DWC_READ_REG32(&dev_if-> + dev_global_regs->diepeachintmsk[ep->num]); + emp = + DWC_READ_REG32(&dev_if-> + dev_global_regs->dtknqr4_fifoemptymsk); + msk |= ((emp >> ep->num) & 0x1) << 7; + v = DWC_READ_REG32(&dev_if->in_ep_regs[ep->num]->diepint) & msk; + } else { + msk = DWC_READ_REG32(&dev_if->dev_global_regs->diepmsk); + emp = + DWC_READ_REG32(&dev_if-> + dev_global_regs->dtknqr4_fifoemptymsk); + msk |= ((emp >> ep->num) & 0x1) << 7; + v = DWC_READ_REG32(&dev_if->in_ep_regs[ep->num]->diepint) & msk; + } + + return v; +} + +/** + * This function returns the Device OUT EP Interrupt register + */ +static inline uint32_t dwc_otg_read_dev_out_ep_intr(dwc_otg_core_if_t * + _core_if, dwc_ep_t * _ep) +{ + dwc_otg_dev_if_t *dev_if = _core_if->dev_if; + uint32_t v; + doepmsk_data_t msk = {.d32 = 0 }; + + if (_core_if->multiproc_int_enable) { + msk.d32 = + DWC_READ_REG32(&dev_if-> + dev_global_regs->doepeachintmsk[_ep->num]); + if (_core_if->pti_enh_enable) { + msk.b.pktdrpsts = 1; + } + v = DWC_READ_REG32(&dev_if-> + out_ep_regs[_ep->num]->doepint) & msk.d32; + } else { + msk.d32 = DWC_READ_REG32(&dev_if->dev_global_regs->doepmsk); + if (_core_if->pti_enh_enable) { + msk.b.pktdrpsts = 1; + } + v = DWC_READ_REG32(&dev_if-> + out_ep_regs[_ep->num]->doepint) & msk.d32; + } + return v; +} + +/** + * This function returns the Host All Channel Interrupt register + */ +static inline uint32_t dwc_otg_read_host_all_channels_intr(dwc_otg_core_if_t * + _core_if) +{ + return (DWC_READ_REG32(&_core_if->host_if->host_global_regs->haint)); +} + +static inline uint32_t dwc_otg_read_host_channel_intr(dwc_otg_core_if_t * + _core_if, dwc_hc_t * _hc) +{ + return (DWC_READ_REG32 + (&_core_if->host_if->hc_regs[_hc->hc_num]->hcint)); +} + +/** + * This function returns the mode of the operation, host or device. + * + * @return 0 - Device Mode, 1 - Host Mode + */ +static inline uint32_t dwc_otg_mode(dwc_otg_core_if_t * _core_if) +{ + return (DWC_READ_REG32(&_core_if->core_global_regs->gintsts) & 0x1); +} + +/**@}*/ + +/** + * DWC_otg CIL callback structure. This structure allows the HCD and + * PCD to register functions used for starting and stopping the PCD + * and HCD for role change on for a DRD. + */ +typedef struct dwc_otg_cil_callbacks { + /** Start function for role change */ + int (*start) (void *_p); + /** Stop Function for role change */ + int (*stop) (void *_p); + /** Disconnect Function for role change */ + int (*disconnect) (void *_p); + /** Resume/Remote wakeup Function */ + int (*resume_wakeup) (void *_p); + /** Suspend function */ + int (*suspend) (void *_p); + /** Session Start (SRP) */ + int (*session_start) (void *_p); +#ifdef CONFIG_USB_DWC_OTG_LPM + /** Sleep (switch to L0 state) */ + int (*sleep) (void *_p); +#endif + /** Pointer passed to start() and stop() */ + void *p; +} dwc_otg_cil_callbacks_t; + +extern void dwc_otg_cil_register_pcd_callbacks(dwc_otg_core_if_t * _core_if, + dwc_otg_cil_callbacks_t * _cb, + void *_p); +extern void dwc_otg_cil_register_hcd_callbacks(dwc_otg_core_if_t * _core_if, + dwc_otg_cil_callbacks_t * _cb, + void *_p); + +void dwc_otg_initiate_srp(dwc_otg_core_if_t * core_if); + +////////////////////////////////////////////////////////////////////// +/** Start the HCD. Helper function for using the HCD callbacks. + * + * @param core_if Programming view of DWC_otg controller. + */ +static inline void cil_hcd_start(dwc_otg_core_if_t * core_if) +{ + if (core_if->hcd_cb && core_if->hcd_cb->start) { + core_if->hcd_cb->start(core_if->hcd_cb->p); + } +} + +/** Stop the HCD. Helper function for using the HCD callbacks. + * + * @param core_if Programming view of DWC_otg controller. + */ +static inline void cil_hcd_stop(dwc_otg_core_if_t * core_if) +{ + if (core_if->hcd_cb && core_if->hcd_cb->stop) { + core_if->hcd_cb->stop(core_if->hcd_cb->p); + } +} + +/** Disconnect the HCD. Helper function for using the HCD callbacks. + * + * @param core_if Programming view of DWC_otg controller. + */ +static inline void cil_hcd_disconnect(dwc_otg_core_if_t * core_if) +{ + if (core_if->hcd_cb && core_if->hcd_cb->disconnect) { + core_if->hcd_cb->disconnect(core_if->hcd_cb->p); + } +} + +/** Inform the HCD the a New Session has begun. Helper function for + * using the HCD callbacks. + * + * @param core_if Programming view of DWC_otg controller. + */ +static inline void cil_hcd_session_start(dwc_otg_core_if_t * core_if) +{ + if (core_if->hcd_cb && core_if->hcd_cb->session_start) { + core_if->hcd_cb->session_start(core_if->hcd_cb->p); + } +} + +#ifdef CONFIG_USB_DWC_OTG_LPM +/** + * Inform the HCD about LPM sleep. + * Helper function for using the HCD callbacks. + * + * @param core_if Programming view of DWC_otg controller. + */ +static inline void cil_hcd_sleep(dwc_otg_core_if_t * core_if) +{ + if (core_if->hcd_cb && core_if->hcd_cb->sleep) { + core_if->hcd_cb->sleep(core_if->hcd_cb->p); + } +} +#endif + +/** Resume the HCD. Helper function for using the HCD callbacks. + * + * @param core_if Programming view of DWC_otg controller. + */ +static inline void cil_hcd_resume(dwc_otg_core_if_t * core_if) +{ + if (core_if->hcd_cb && core_if->hcd_cb->resume_wakeup) { + core_if->hcd_cb->resume_wakeup(core_if->hcd_cb->p); + } +} + +/** Start the PCD. Helper function for using the PCD callbacks. + * + * @param core_if Programming view of DWC_otg controller. + */ +static inline void cil_pcd_start(dwc_otg_core_if_t * core_if) +{ + if (core_if->pcd_cb && core_if->pcd_cb->start) { + core_if->pcd_cb->start(core_if->pcd_cb->p); + } +} + +/** Stop the PCD. Helper function for using the PCD callbacks. + * + * @param core_if Programming view of DWC_otg controller. + */ +static inline void cil_pcd_stop(dwc_otg_core_if_t * core_if) +{ + if (core_if->pcd_cb && core_if->pcd_cb->stop) { + core_if->pcd_cb->stop(core_if->pcd_cb->p); + } +} + +/** Suspend the PCD. Helper function for using the PCD callbacks. + * + * @param core_if Programming view of DWC_otg controller. + */ +static inline void cil_pcd_suspend(dwc_otg_core_if_t * core_if) +{ + if (core_if->pcd_cb && core_if->pcd_cb->suspend) { + core_if->pcd_cb->suspend(core_if->pcd_cb->p); + } +} + +/** Resume the PCD. Helper function for using the PCD callbacks. + * + * @param core_if Programming view of DWC_otg controller. + */ +static inline void cil_pcd_resume(dwc_otg_core_if_t * core_if) +{ + if (core_if->pcd_cb && core_if->pcd_cb->resume_wakeup) { + core_if->pcd_cb->resume_wakeup(core_if->pcd_cb->p); + } +} + +////////////////////////////////////////////////////////////////////// + +#endif diff --git a/drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c b/drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c new file mode 100644 index 0000000000000000000000000000000000000000..96c76e38cd372b8ca8c375ae8d8653f32a3faf80 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c @@ -0,0 +1,1594 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_cil_intr.c $ + * $Revision: #32 $ + * $Date: 2012/08/10 $ + * $Change: 2047372 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +/** @file + * + * The Core Interface Layer provides basic services for accessing and + * managing the DWC_otg hardware. These services are used by both the + * Host Controller Driver and the Peripheral Controller Driver. + * + * This file contains the Common Interrupt handlers. + */ +#include "dwc_os.h" +#include "dwc_otg_regs.h" +#include "dwc_otg_cil.h" +#include "dwc_otg_driver.h" +#include "dwc_otg_pcd.h" +#include "dwc_otg_hcd.h" + +#ifdef DEBUG +inline const char *op_state_str(dwc_otg_core_if_t * core_if) +{ + return (core_if->op_state == A_HOST ? "a_host" : + (core_if->op_state == A_SUSPEND ? "a_suspend" : + (core_if->op_state == A_PERIPHERAL ? "a_peripheral" : + (core_if->op_state == B_PERIPHERAL ? "b_peripheral" : + (core_if->op_state == B_HOST ? "b_host" : "unknown"))))); +} +#endif + +/** This function will log a debug message + * + * @param core_if Programming view of DWC_otg controller. + */ +int32_t dwc_otg_handle_mode_mismatch_intr(dwc_otg_core_if_t * core_if) +{ + gintsts_data_t gintsts; + DWC_WARN("Mode Mismatch Interrupt: currently in %s mode\n", + dwc_otg_mode(core_if) ? "Host" : "Device"); + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.modemismatch = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32); + return 1; +} + +/** + * This function handles the OTG Interrupts. It reads the OTG + * Interrupt Register (GOTGINT) to determine what interrupt has + * occurred. + * + * @param core_if Programming view of DWC_otg controller. + */ +int32_t dwc_otg_handle_otg_intr(dwc_otg_core_if_t * core_if) +{ + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + gotgint_data_t gotgint; + gotgctl_data_t gotgctl; + gintmsk_data_t gintmsk; + gpwrdn_data_t gpwrdn; + + gotgint.d32 = DWC_READ_REG32(&global_regs->gotgint); + gotgctl.d32 = DWC_READ_REG32(&global_regs->gotgctl); + DWC_DEBUGPL(DBG_CIL, "++OTG Interrupt gotgint=%0x [%s]\n", gotgint.d32, + op_state_str(core_if)); + + if (gotgint.b.sesenddet) { + DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: " + "Session End Detected++ (%s)\n", + op_state_str(core_if)); + gotgctl.d32 = DWC_READ_REG32(&global_regs->gotgctl); + + if (core_if->op_state == B_HOST) { + cil_pcd_start(core_if); + core_if->op_state = B_PERIPHERAL; + } else { + /* If not B_HOST and Device HNP still set. HNP + * Did not succeed!*/ + if (gotgctl.b.devhnpen) { + DWC_DEBUGPL(DBG_ANY, "Session End Detected\n"); + __DWC_ERROR("Device Not Connected/Responding!\n"); + } + + /* If Session End Detected the B-Cable has + * been disconnected. */ + /* Reset PCD and Gadget driver to a + * clean state. */ + core_if->lx_state = DWC_OTG_L0; + DWC_SPINUNLOCK(core_if->lock); + cil_pcd_stop(core_if); + DWC_SPINLOCK(core_if->lock); + + if (core_if->adp_enable) { + if (core_if->power_down == 2) { + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnswtch = 1; + DWC_MODIFY_REG32(&core_if-> + core_global_regs-> + gpwrdn, gpwrdn.d32, 0); + } + + gpwrdn.d32 = 0; + gpwrdn.b.pmuintsel = 1; + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs-> + gpwrdn, 0, gpwrdn.d32); + + dwc_otg_adp_sense_start(core_if); + } + } + + gotgctl.d32 = 0; + gotgctl.b.devhnpen = 1; + DWC_MODIFY_REG32(&global_regs->gotgctl, gotgctl.d32, 0); + } + if (gotgint.b.sesreqsucstschng) { + DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: " + "Session Reqeust Success Status Change++\n"); + gotgctl.d32 = DWC_READ_REG32(&global_regs->gotgctl); + if (gotgctl.b.sesreqscs) { + + if ((core_if->core_params->phy_type == + DWC_PHY_TYPE_PARAM_FS) && (core_if->core_params->i2c_enable)) { + core_if->srp_success = 1; + } else { + DWC_SPINUNLOCK(core_if->lock); + cil_pcd_resume(core_if); + DWC_SPINLOCK(core_if->lock); + /* Clear Session Request */ + gotgctl.d32 = 0; + gotgctl.b.sesreq = 1; + DWC_MODIFY_REG32(&global_regs->gotgctl, + gotgctl.d32, 0); + } + } + } + if (gotgint.b.hstnegsucstschng) { + /* Print statements during the HNP interrupt handling + * can cause it to fail.*/ + gotgctl.d32 = DWC_READ_REG32(&global_regs->gotgctl); + /* WA for 3.00a- HW is not setting cur_mode, even sometimes + * this does not help*/ + if (core_if->snpsid >= OTG_CORE_REV_3_00a) + dwc_udelay(100); + if (gotgctl.b.hstnegscs) { + if (dwc_otg_is_host_mode(core_if)) { + core_if->op_state = B_HOST; + /* + * Need to disable SOF interrupt immediately. + * When switching from device to host, the PCD + * interrupt handler won't handle the + * interrupt if host mode is already set. The + * HCD interrupt handler won't get called if + * the HCD state is HALT. This means that the + * interrupt does not get handled and Linux + * complains loudly. + */ + gintmsk.d32 = 0; + gintmsk.b.sofintr = 1; + DWC_MODIFY_REG32(&global_regs->gintmsk, + gintmsk.d32, 0); + /* Call callback function with spin lock released */ + DWC_SPINUNLOCK(core_if->lock); + cil_pcd_stop(core_if); + /* + * Initialize the Core for Host mode. + */ + cil_hcd_start(core_if); + DWC_SPINLOCK(core_if->lock); + core_if->op_state = B_HOST; + } + } else { + gotgctl.d32 = 0; + gotgctl.b.hnpreq = 1; + gotgctl.b.devhnpen = 1; + DWC_MODIFY_REG32(&global_regs->gotgctl, gotgctl.d32, 0); + DWC_DEBUGPL(DBG_ANY, "HNP Failed\n"); + __DWC_ERROR("Device Not Connected/Responding\n"); + } + } + if (gotgint.b.hstnegdet) { + /* The disconnect interrupt is set at the same time as + * Host Negotiation Detected. During the mode + * switch all interrupts are cleared so the disconnect + * interrupt handler will not get executed. + */ + DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: " + "Host Negotiation Detected++ (%s)\n", + (dwc_otg_is_host_mode(core_if) ? "Host" : + "Device")); + if (dwc_otg_is_device_mode(core_if)) { + DWC_DEBUGPL(DBG_ANY, "a_suspend->a_peripheral (%d)\n", + core_if->op_state); + DWC_SPINUNLOCK(core_if->lock); + cil_hcd_disconnect(core_if); + cil_pcd_start(core_if); + DWC_SPINLOCK(core_if->lock); + core_if->op_state = A_PERIPHERAL; + } else { + /* + * Need to disable SOF interrupt immediately. When + * switching from device to host, the PCD interrupt + * handler won't handle the interrupt if host mode is + * already set. The HCD interrupt handler won't get + * called if the HCD state is HALT. This means that + * the interrupt does not get handled and Linux + * complains loudly. + */ + gintmsk.d32 = 0; + gintmsk.b.sofintr = 1; + DWC_MODIFY_REG32(&global_regs->gintmsk, gintmsk.d32, 0); + DWC_SPINUNLOCK(core_if->lock); + cil_pcd_stop(core_if); + cil_hcd_start(core_if); + DWC_SPINLOCK(core_if->lock); + core_if->op_state = A_HOST; + } + } + if (gotgint.b.adevtoutchng) { + DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: " + "A-Device Timeout Change++\n"); + } + if (gotgint.b.debdone) { + DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: " "Debounce Done++\n"); + } + + /* Clear GOTGINT */ + DWC_WRITE_REG32(&core_if->core_global_regs->gotgint, gotgint.d32); + + return 1; +} + +void w_conn_id_status_change(void *p) +{ + dwc_otg_core_if_t *core_if = p; + uint32_t count = 0; + gotgctl_data_t gotgctl = {.d32 = 0 }; + + gotgctl.d32 = DWC_READ_REG32(&core_if->core_global_regs->gotgctl); + DWC_DEBUGPL(DBG_CIL, "gotgctl=%0x\n", gotgctl.d32); + DWC_DEBUGPL(DBG_CIL, "gotgctl.b.conidsts=%d\n", gotgctl.b.conidsts); + + /* B-Device connector (Device Mode) */ + if (gotgctl.b.conidsts) { + /* Wait for switch to device mode. */ + while (!dwc_otg_is_device_mode(core_if)) { + DWC_PRINTF("Waiting for Peripheral Mode, Mode=%s\n", + (dwc_otg_is_host_mode(core_if) ? "Host" : + "Peripheral")); + dwc_mdelay(100); + if (++count > 10000) + break; + } + DWC_ASSERT(++count < 10000, + "Connection id status change timed out"); + core_if->op_state = B_PERIPHERAL; + dwc_otg_core_init(core_if); + dwc_otg_enable_global_interrupts(core_if); + cil_pcd_start(core_if); + } else { + /* A-Device connector (Host Mode) */ + while (!dwc_otg_is_host_mode(core_if)) { + DWC_PRINTF("Waiting for Host Mode, Mode=%s\n", + (dwc_otg_is_host_mode(core_if) ? "Host" : + "Peripheral")); + dwc_mdelay(100); + if (++count > 10000) + break; + } + DWC_ASSERT(++count < 10000, + "Connection id status change timed out"); + core_if->op_state = A_HOST; + /* + * Initialize the Core for Host mode. + */ + dwc_otg_core_init(core_if); + dwc_otg_enable_global_interrupts(core_if); + cil_hcd_start(core_if); + } +} + +/** + * This function handles the Connector ID Status Change Interrupt. It + * reads the OTG Interrupt Register (GOTCTL) to determine whether this + * is a Device to Host Mode transition or a Host Mode to Device + * Transition. + * + * This only occurs when the cable is connected/removed from the PHY + * connector. + * + * @param core_if Programming view of DWC_otg controller. + */ +int32_t dwc_otg_handle_conn_id_status_change_intr(dwc_otg_core_if_t * core_if) +{ + + /* + * Need to disable SOF interrupt immediately. If switching from device + * to host, the PCD interrupt handler won't handle the interrupt if + * host mode is already set. The HCD interrupt handler won't get + * called if the HCD state is HALT. This means that the interrupt does + * not get handled and Linux complains loudly. + */ + gintmsk_data_t gintmsk = {.d32 = 0 }; + gintsts_data_t gintsts = {.d32 = 0 }; + + gintmsk.b.sofintr = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk, gintmsk.d32, 0); + + DWC_DEBUGPL(DBG_CIL, + " ++Connector ID Status Change Interrupt++ (%s)\n", + (dwc_otg_is_host_mode(core_if) ? "Host" : "Device")); + + DWC_SPINUNLOCK(core_if->lock); + + /* + * Need to schedule a work, as there are possible DELAY function calls + * Release lock before scheduling workq as it holds spinlock during scheduling + */ + + DWC_WORKQ_SCHEDULE(core_if->wq_otg, w_conn_id_status_change, + core_if, "connection id status change"); + DWC_SPINLOCK(core_if->lock); + + /* Set flag and clear interrupt */ + gintsts.b.conidstschng = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32); + + return 1; +} + +/** + * This interrupt indicates that a device is initiating the Session + * Request Protocol to request the host to turn on bus power so a new + * session can begin. The handler responds by turning on bus power. If + * the DWC_otg controller is in low power mode, the handler brings the + * controller out of low power mode before turning on bus power. + * + * @param core_if Programming view of DWC_otg controller. + */ +int32_t dwc_otg_handle_session_req_intr(dwc_otg_core_if_t * core_if) +{ + gintsts_data_t gintsts; + +#ifndef DWC_HOST_ONLY + DWC_DEBUGPL(DBG_ANY, "++Session Request Interrupt++\n"); + + if (dwc_otg_is_device_mode(core_if)) { + DWC_PRINTF("SRP: Device mode\n"); + } else { + hprt0_data_t hprt0; + DWC_PRINTF("SRP: Host mode\n"); + + /* Turn on the port power bit. */ + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtpwr = 1; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + + /* Start the Connection timer. So a message can be displayed + * if connect does not occur within 10 seconds. */ + cil_hcd_session_start(core_if); + } +#endif + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.sessreqintr = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32); + + return 1; +} + +void w_wakeup_detected(void *p) +{ + dwc_otg_core_if_t *core_if = (dwc_otg_core_if_t *) p; + /* + * Clear the Resume after 70ms. (Need 20 ms minimum. Use 70 ms + * so that OPT tests pass with all PHYs). + */ + hprt0_data_t hprt0 = {.d32 = 0 }; +#if 0 + pcgcctl_data_t pcgcctl = {.d32 = 0 }; + /* Restart the Phy Clock */ + pcgcctl.b.stoppclk = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, pcgcctl.d32, 0); + dwc_udelay(10); +#endif //0 + hprt0.d32 = dwc_otg_read_hprt0(core_if); + DWC_DEBUGPL(DBG_ANY, "Resume: HPRT0=%0x\n", hprt0.d32); +// dwc_mdelay(70); + hprt0.b.prtres = 0; /* Resume */ + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + DWC_DEBUGPL(DBG_ANY, "Clear Resume: HPRT0=%0x\n", + DWC_READ_REG32(core_if->host_if->hprt0)); + + cil_hcd_resume(core_if); + + /** Change to L0 state*/ + core_if->lx_state = DWC_OTG_L0; +} + +/** + * This interrupt indicates that the DWC_otg controller has detected a + * resume or remote wakeup sequence. If the DWC_otg controller is in + * low power mode, the handler must brings the controller out of low + * power mode. The controller automatically begins resume + * signaling. The handler schedules a time to stop resume signaling. + */ +int32_t dwc_otg_handle_wakeup_detected_intr(dwc_otg_core_if_t * core_if) +{ + gintsts_data_t gintsts; + + DWC_DEBUGPL(DBG_ANY, + "++Resume and Remote Wakeup Detected Interrupt++\n"); + + DWC_PRINTF("%s lxstate = %d\n", __func__, core_if->lx_state); + + if (dwc_otg_is_device_mode(core_if)) { + dctl_data_t dctl = {.d32 = 0 }; + DWC_DEBUGPL(DBG_PCD, "DSTS=0x%0x\n", + DWC_READ_REG32(&core_if->dev_if->dev_global_regs-> + dsts)); + if (core_if->lx_state == DWC_OTG_L2) { +#ifdef PARTIAL_POWER_DOWN + if (core_if->hwcfg4.b.power_optimiz) { + pcgcctl_data_t power = {.d32 = 0 }; + + power.d32 = DWC_READ_REG32(core_if->pcgcctl); + DWC_DEBUGPL(DBG_CIL, "PCGCCTL=%0x\n", + power.d32); + + power.b.stoppclk = 0; + DWC_WRITE_REG32(core_if->pcgcctl, power.d32); + + power.b.pwrclmp = 0; + DWC_WRITE_REG32(core_if->pcgcctl, power.d32); + + power.b.rstpdwnmodule = 0; + DWC_WRITE_REG32(core_if->pcgcctl, power.d32); + } +#endif + /* Clear the Remote Wakeup Signaling */ + dctl.b.rmtwkupsig = 1; + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs-> + dctl, dctl.d32, 0); + + DWC_SPINUNLOCK(core_if->lock); + if (core_if->pcd_cb && core_if->pcd_cb->resume_wakeup) { + core_if->pcd_cb->resume_wakeup(core_if->pcd_cb->p); + } + DWC_SPINLOCK(core_if->lock); + } else { + glpmcfg_data_t lpmcfg; + lpmcfg.d32 = + DWC_READ_REG32(&core_if->core_global_regs->glpmcfg); + lpmcfg.b.hird_thres &= (~(1 << 4)); + DWC_WRITE_REG32(&core_if->core_global_regs->glpmcfg, + lpmcfg.d32); + } + /** Change to L0 state*/ + core_if->lx_state = DWC_OTG_L0; + } else { + if (core_if->lx_state != DWC_OTG_L1) { + pcgcctl_data_t pcgcctl = {.d32 = 0 }; + + /* Restart the Phy Clock */ + pcgcctl.b.stoppclk = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, pcgcctl.d32, 0); + DWC_TIMER_SCHEDULE(core_if->wkp_timer, 71); + } else { + /** Change to L0 state*/ + core_if->lx_state = DWC_OTG_L0; + } + } + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.wkupintr = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32); + + return 1; +} + +/** + * This interrupt indicates that the Wakeup Logic has detected a + * Device disconnect. + */ +static int32_t dwc_otg_handle_pwrdn_disconnect_intr(dwc_otg_core_if_t *core_if) +{ + gpwrdn_data_t gpwrdn = { .d32 = 0 }; + gpwrdn_data_t gpwrdn_temp = { .d32 = 0 }; + gpwrdn_temp.d32 = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn); + + DWC_PRINTF("%s called\n", __FUNCTION__); + + if (!core_if->hibernation_suspend) { + DWC_PRINTF("Already exited from Hibernation\n"); + return 1; + } + + /* Switch on the voltage to the core */ + gpwrdn.b.pwrdnswtch = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + /* Reset the core */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnrstn = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + /* Disable power clamps*/ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnclmp = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + + /* Remove reset the core signal */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnrstn = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32); + dwc_udelay(10); + + /* Disable PMU interrupt */ + gpwrdn.d32 = 0; + gpwrdn.b.pmuintsel = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + + core_if->hibernation_suspend = 0; + + /* Disable PMU */ + gpwrdn.d32 = 0; + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + if (gpwrdn_temp.b.idsts) { + core_if->op_state = B_PERIPHERAL; + dwc_otg_core_init(core_if); + dwc_otg_enable_global_interrupts(core_if); + cil_pcd_start(core_if); + } else { + core_if->op_state = A_HOST; + dwc_otg_core_init(core_if); + dwc_otg_enable_global_interrupts(core_if); + cil_hcd_start(core_if); + } + + return 1; +} + +/** + * This interrupt indicates that the Wakeup Logic has detected a + * remote wakeup sequence. + */ +static int32_t dwc_otg_handle_pwrdn_wakeup_detected_intr(dwc_otg_core_if_t * core_if) +{ + gpwrdn_data_t gpwrdn = {.d32 = 0 }; + DWC_DEBUGPL(DBG_ANY, + "++Powerdown Remote Wakeup Detected Interrupt++\n"); + + if (!core_if->hibernation_suspend) { + DWC_PRINTF("Already exited from Hibernation\n"); + return 1; + } + + gpwrdn.d32 = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn); + if (gpwrdn.b.idsts) { // Device Mode + if ((core_if->power_down == 2) + && (core_if->hibernation_suspend == 1)) { + dwc_otg_device_hibernation_restore(core_if, 0, 0); + } + } else { + if ((core_if->power_down == 2) + && (core_if->hibernation_suspend == 1)) { + dwc_otg_host_hibernation_restore(core_if, 1, 0); + } + } + return 1; +} + +static int32_t dwc_otg_handle_pwrdn_idsts_change(dwc_otg_device_t *otg_dev) +{ + gpwrdn_data_t gpwrdn = {.d32 = 0 }; + gpwrdn_data_t gpwrdn_temp = {.d32 = 0 }; + dwc_otg_core_if_t *core_if = otg_dev->core_if; + + DWC_DEBUGPL(DBG_ANY, "%s called\n", __FUNCTION__); + gpwrdn_temp.d32 = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn); + if (core_if->power_down == 2) { + if (!core_if->hibernation_suspend) { + DWC_PRINTF("Already exited from Hibernation\n"); + return 1; + } + DWC_DEBUGPL(DBG_ANY, "Exit from hibernation on ID sts change\n"); + /* Switch on the voltage to the core */ + gpwrdn.b.pwrdnswtch = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + /* Reset the core */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnrstn = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + /* Disable power clamps */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnclmp = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + + /* Remove reset the core signal */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnrstn = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32); + dwc_udelay(10); + + /* Disable PMU interrupt */ + gpwrdn.d32 = 0; + gpwrdn.b.pmuintsel = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + + /*Indicates that we are exiting from hibernation */ + core_if->hibernation_suspend = 0; + + /* Disable PMU */ + gpwrdn.d32 = 0; + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + gpwrdn.d32 = core_if->gr_backup->gpwrdn_local; + if (gpwrdn.b.dis_vbus == 1) { + gpwrdn.d32 = 0; + gpwrdn.b.dis_vbus = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + } + + if (gpwrdn_temp.b.idsts) { + core_if->op_state = B_PERIPHERAL; + dwc_otg_core_init(core_if); + dwc_otg_enable_global_interrupts(core_if); + cil_pcd_start(core_if); + } else { + core_if->op_state = A_HOST; + dwc_otg_core_init(core_if); + dwc_otg_enable_global_interrupts(core_if); + cil_hcd_start(core_if); + } + } + + if (core_if->adp_enable) { + uint8_t is_host = 0; + DWC_SPINUNLOCK(core_if->lock); + /* Change the core_if's lock to hcd/pcd lock depend on mode? */ +#ifndef DWC_HOST_ONLY + if (gpwrdn_temp.b.idsts) + core_if->lock = otg_dev->pcd->lock; +#endif +#ifndef DWC_DEVICE_ONLY + if (!gpwrdn_temp.b.idsts) { + core_if->lock = otg_dev->hcd->lock; + is_host = 1; + } +#endif + DWC_PRINTF("RESTART ADP\n"); + if (core_if->adp.probe_enabled) + dwc_otg_adp_probe_stop(core_if); + if (core_if->adp.sense_enabled) + dwc_otg_adp_sense_stop(core_if); + if (core_if->adp.sense_timer_started) + DWC_TIMER_CANCEL(core_if->adp.sense_timer); + if (core_if->adp.vbuson_timer_started) + DWC_TIMER_CANCEL(core_if->adp.vbuson_timer); + core_if->adp.probe_timer_values[0] = -1; + core_if->adp.probe_timer_values[1] = -1; + core_if->adp.sense_timer_started = 0; + core_if->adp.vbuson_timer_started = 0; + core_if->adp.probe_counter = 0; + core_if->adp.gpwrdn = 0; + + /* Disable PMU and restart ADP */ + gpwrdn_temp.d32 = 0; + gpwrdn_temp.b.pmuactv = 1; + gpwrdn_temp.b.pmuintsel = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + DWC_PRINTF("Check point 1\n"); + dwc_mdelay(110); + dwc_otg_adp_start(core_if, is_host); + DWC_SPINLOCK(core_if->lock); + } + + + return 1; +} + +static int32_t dwc_otg_handle_pwrdn_session_change(dwc_otg_core_if_t * core_if) +{ + gpwrdn_data_t gpwrdn = {.d32 = 0 }; + int32_t otg_cap_param = core_if->core_params->otg_cap; + DWC_DEBUGPL(DBG_ANY, "%s called\n", __FUNCTION__); + + gpwrdn.d32 = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn); + if (core_if->power_down == 2) { + if (!core_if->hibernation_suspend) { + DWC_PRINTF("Already exited from Hibernation\n"); + return 1; + } + + if ((otg_cap_param != DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE || + otg_cap_param != DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE) && + gpwrdn.b.bsessvld == 0) { + /* Save gpwrdn register for further usage if stschng interrupt */ + core_if->gr_backup->gpwrdn_local = + DWC_READ_REG32(&core_if->core_global_regs->gpwrdn); + /*Exit from ISR and wait for stschng interrupt with bsessvld = 1 */ + return 1; + } + + /* Switch on the voltage to the core */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnswtch = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + /* Reset the core */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnrstn = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + /* Disable power clamps */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnclmp = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + + /* Remove reset the core signal */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnrstn = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32); + dwc_udelay(10); + + /* Disable PMU interrupt */ + gpwrdn.d32 = 0; + gpwrdn.b.pmuintsel = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + /*Indicates that we are exiting from hibernation */ + core_if->hibernation_suspend = 0; + + /* Disable PMU */ + gpwrdn.d32 = 0; + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + core_if->op_state = B_PERIPHERAL; + dwc_otg_core_init(core_if); + dwc_otg_enable_global_interrupts(core_if); + cil_pcd_start(core_if); + + if (otg_cap_param == DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE || + otg_cap_param == DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE) { + /* + * Initiate SRP after initial ADP probe. + */ + dwc_otg_initiate_srp(core_if); + } + } + + return 1; +} +/** + * This interrupt indicates that the Wakeup Logic has detected a + * status change either on IDDIG or BSessVld. + */ +static uint32_t dwc_otg_handle_pwrdn_stschng_intr(dwc_otg_device_t *otg_dev) +{ + int retval; + gpwrdn_data_t gpwrdn = {.d32 = 0 }; + gpwrdn_data_t gpwrdn_temp = {.d32 = 0 }; + dwc_otg_core_if_t *core_if = otg_dev->core_if; + + DWC_PRINTF("%s called\n", __FUNCTION__); + + if (core_if->power_down == 2) { + if (core_if->hibernation_suspend <= 0) { + DWC_PRINTF("Already exited from Hibernation\n"); + return 1; + } else + gpwrdn_temp.d32 = core_if->gr_backup->gpwrdn_local; + + } else { + gpwrdn_temp.d32 = core_if->adp.gpwrdn; + } + + gpwrdn.d32 = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn); + + if (gpwrdn.b.idsts ^ gpwrdn_temp.b.idsts) { + retval = dwc_otg_handle_pwrdn_idsts_change(otg_dev); + } else if (gpwrdn.b.bsessvld ^ gpwrdn_temp.b.bsessvld) { + retval = dwc_otg_handle_pwrdn_session_change(core_if); + } + + return retval; +} + +/** + * This interrupt indicates that the Wakeup Logic has detected a + * SRP. + */ +static int32_t dwc_otg_handle_pwrdn_srp_intr(dwc_otg_core_if_t * core_if) +{ + gpwrdn_data_t gpwrdn = {.d32 = 0 }; + + DWC_PRINTF("%s called\n", __FUNCTION__); + + if (!core_if->hibernation_suspend) { + DWC_PRINTF("Already exited from Hibernation\n"); + return 1; + } +#ifdef DWC_DEV_SRPCAP + if (core_if->pwron_timer_started) { + core_if->pwron_timer_started = 0; + DWC_TIMER_CANCEL(core_if->pwron_timer); + } +#endif + + /* Switch on the voltage to the core */ + gpwrdn.b.pwrdnswtch = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + /* Reset the core */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnrstn = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + /* Disable power clamps */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnclmp = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + + /* Remove reset the core signal */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnrstn = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32); + dwc_udelay(10); + + /* Disable PMU interrupt */ + gpwrdn.d32 = 0; + gpwrdn.b.pmuintsel = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + + /* Indicates that we are exiting from hibernation */ + core_if->hibernation_suspend = 0; + + /* Disable PMU */ + gpwrdn.d32 = 0; + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + /* Programm Disable VBUS to 0 */ + gpwrdn.d32 = 0; + gpwrdn.b.dis_vbus = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + + /*Initialize the core as Host */ + core_if->op_state = A_HOST; + dwc_otg_core_init(core_if); + dwc_otg_enable_global_interrupts(core_if); + cil_hcd_start(core_if); + + return 1; +} + +/** This interrupt indicates that restore command after Hibernation + * was completed by the core. */ +int32_t dwc_otg_handle_restore_done_intr(dwc_otg_core_if_t * core_if) +{ + pcgcctl_data_t pcgcctl; + DWC_DEBUGPL(DBG_ANY, "++Restore Done Interrupt++\n"); + + //TODO De-assert restore signal. 8.a + pcgcctl.d32 = DWC_READ_REG32(core_if->pcgcctl); + if (pcgcctl.b.restoremode == 1) { + gintmsk_data_t gintmsk = {.d32 = 0 }; + /* + * If restore mode is Remote Wakeup, + * unmask Remote Wakeup interrupt. + */ + gintmsk.b.wkupintr = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk, + 0, gintmsk.d32); + } + + return 1; +} + +/** + * This interrupt indicates that a device has been disconnected from + * the root port. + */ +int32_t dwc_otg_handle_disconnect_intr(dwc_otg_core_if_t * core_if) +{ + gintsts_data_t gintsts; + + DWC_DEBUGPL(DBG_ANY, "++Disconnect Detected Interrupt++ (%s) %s\n", + (dwc_otg_is_host_mode(core_if) ? "Host" : "Device"), + op_state_str(core_if)); + +/** @todo Consolidate this if statement. */ +#ifndef DWC_HOST_ONLY + if (core_if->op_state == B_HOST) { + /* If in device mode Disconnect and stop the HCD, then + * start the PCD. */ + DWC_SPINUNLOCK(core_if->lock); + cil_hcd_disconnect(core_if); + cil_pcd_start(core_if); + DWC_SPINLOCK(core_if->lock); + core_if->op_state = B_PERIPHERAL; + } else if (dwc_otg_is_device_mode(core_if)) { + gotgctl_data_t gotgctl = {.d32 = 0 }; + gotgctl.d32 = + DWC_READ_REG32(&core_if->core_global_regs->gotgctl); + if (gotgctl.b.hstsethnpen == 1) { + /* Do nothing, if HNP in process the OTG + * interrupt "Host Negotiation Detected" + * interrupt will do the mode switch. + */ + } else if (gotgctl.b.devhnpen == 0) { + /* If in device mode Disconnect and stop the HCD, then + * start the PCD. */ + DWC_SPINUNLOCK(core_if->lock); + cil_hcd_disconnect(core_if); + cil_pcd_start(core_if); + DWC_SPINLOCK(core_if->lock); + core_if->op_state = B_PERIPHERAL; + } else { + DWC_DEBUGPL(DBG_ANY, "!a_peripheral && !devhnpen\n"); + } + } else { + if (core_if->op_state == A_HOST) { + /* A-Cable still connected but device disconnected. */ + cil_hcd_disconnect(core_if); + if (core_if->adp_enable) { + gpwrdn_data_t gpwrdn = { .d32 = 0 }; + cil_hcd_stop(core_if); + /* Enable Power Down Logic */ + gpwrdn.b.pmuintsel = 1; + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs-> + gpwrdn, 0, gpwrdn.d32); + dwc_otg_adp_probe_start(core_if); + + /* Power off the core */ + if (core_if->power_down == 2) { + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnswtch = 1; + DWC_MODIFY_REG32 + (&core_if->core_global_regs->gpwrdn, + gpwrdn.d32, 0); + } + } + } + } +#endif + /* Change to L3(OFF) state */ + core_if->lx_state = DWC_OTG_L3; + + gintsts.d32 = 0; + gintsts.b.disconnect = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32); + return 1; +} + +/** + * This interrupt indicates that SUSPEND state has been detected on + * the USB. + * + * For HNP the USB Suspend interrupt signals the change from + * "a_peripheral" to "a_host". + * + * When power management is enabled the core will be put in low power + * mode. + */ +int32_t dwc_otg_handle_usb_suspend_intr(dwc_otg_core_if_t * core_if) +{ + dsts_data_t dsts; + gintsts_data_t gintsts; + dcfg_data_t dcfg; + + DWC_DEBUGPL(DBG_ANY, "USB SUSPEND\n"); + + if (dwc_otg_is_device_mode(core_if)) { + /* Check the Device status register to determine if the Suspend + * state is active. */ + dsts.d32 = + DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dsts); + DWC_DEBUGPL(DBG_PCD, "DSTS=0x%0x\n", dsts.d32); + DWC_DEBUGPL(DBG_PCD, "DSTS.Suspend Status=%d " + "HWCFG4.power Optimize=%d\n", + dsts.b.suspsts, core_if->hwcfg4.b.power_optimiz); + +#ifdef PARTIAL_POWER_DOWN +/** @todo Add a module parameter for power management. */ + + if (dsts.b.suspsts && core_if->hwcfg4.b.power_optimiz) { + pcgcctl_data_t power = {.d32 = 0 }; + DWC_DEBUGPL(DBG_CIL, "suspend\n"); + + power.b.pwrclmp = 1; + DWC_WRITE_REG32(core_if->pcgcctl, power.d32); + + power.b.rstpdwnmodule = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, 0, power.d32); + + power.b.stoppclk = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, 0, power.d32); + + } else { + DWC_DEBUGPL(DBG_ANY, "disconnect?\n"); + } +#endif + /* PCD callback for suspend. Release the lock inside of callback function */ + cil_pcd_suspend(core_if); + if (core_if->power_down == 2) + { + dcfg.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dcfg); + DWC_DEBUGPL(DBG_ANY,"lx_state = %08x\n",core_if->lx_state); + DWC_DEBUGPL(DBG_ANY," device address = %08d\n",dcfg.b.devaddr); + + if (core_if->lx_state != DWC_OTG_L3 && dcfg.b.devaddr) { + pcgcctl_data_t pcgcctl = {.d32 = 0 }; + gpwrdn_data_t gpwrdn = {.d32 = 0 }; + gusbcfg_data_t gusbcfg = {.d32 = 0 }; + + /* Change to L2(suspend) state */ + core_if->lx_state = DWC_OTG_L2; + + /* Clear interrupt in gintsts */ + gintsts.d32 = 0; + gintsts.b.usbsuspend = 1; + DWC_WRITE_REG32(&core_if->core_global_regs-> + gintsts, gintsts.d32); + DWC_PRINTF("Start of hibernation completed\n"); + dwc_otg_save_global_regs(core_if); + dwc_otg_save_dev_regs(core_if); + + gusbcfg.d32 = + DWC_READ_REG32(&core_if->core_global_regs-> + gusbcfg); + if (gusbcfg.b.ulpi_utmi_sel == 1) { + /* ULPI interface */ + /* Suspend the Phy Clock */ + pcgcctl.d32 = 0; + pcgcctl.b.stoppclk = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, 0, + pcgcctl.d32); + dwc_udelay(10); + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if-> + core_global_regs-> + gpwrdn, 0, gpwrdn.d32); + } else { + /* UTMI+ Interface */ + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if-> + core_global_regs-> + gpwrdn, 0, gpwrdn.d32); + dwc_udelay(10); + pcgcctl.b.stoppclk = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, 0, + pcgcctl.d32); + dwc_udelay(10); + } + + /* Set flag to indicate that we are in hibernation */ + core_if->hibernation_suspend = 1; + /* Enable interrupts from wake up logic */ + gpwrdn.d32 = 0; + gpwrdn.b.pmuintsel = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs-> + gpwrdn, 0, gpwrdn.d32); + dwc_udelay(10); + + /* Unmask device mode interrupts in GPWRDN */ + gpwrdn.d32 = 0; + gpwrdn.b.rst_det_msk = 1; + gpwrdn.b.lnstchng_msk = 1; + gpwrdn.b.sts_chngint_msk = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs-> + gpwrdn, 0, gpwrdn.d32); + dwc_udelay(10); + + /* Enable Power Down Clamp */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnclmp = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs-> + gpwrdn, 0, gpwrdn.d32); + dwc_udelay(10); + + /* Switch off VDD */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnswtch = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs-> + gpwrdn, 0, gpwrdn.d32); + + /* Save gpwrdn register for further usage if stschng interrupt */ + core_if->gr_backup->gpwrdn_local = + DWC_READ_REG32(&core_if->core_global_regs->gpwrdn); + DWC_PRINTF("Hibernation completed\n"); + + return 1; + } + } else if (core_if->power_down == 3) { + pcgcctl_data_t pcgcctl = {.d32 = 0 }; + dcfg.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dcfg); + DWC_DEBUGPL(DBG_ANY, "lx_state = %08x\n",core_if->lx_state); + DWC_DEBUGPL(DBG_ANY, " device address = %08d\n",dcfg.b.devaddr); + + if (core_if->lx_state != DWC_OTG_L3 && dcfg.b.devaddr) { + DWC_DEBUGPL(DBG_ANY, "Start entering to extended hibernation\n"); + core_if->xhib = 1; + + /* Clear interrupt in gintsts */ + gintsts.d32 = 0; + gintsts.b.usbsuspend = 1; + DWC_WRITE_REG32(&core_if->core_global_regs-> + gintsts, gintsts.d32); + + dwc_otg_save_global_regs(core_if); + dwc_otg_save_dev_regs(core_if); + + /* Wait for 10 PHY clocks */ + dwc_udelay(10); + + /* Program GPIO register while entering to xHib */ + DWC_WRITE_REG32(&core_if->core_global_regs->ggpio, 0x1); + + pcgcctl.b.enbl_extnd_hiber = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, 0, pcgcctl.d32); + DWC_MODIFY_REG32(core_if->pcgcctl, 0, pcgcctl.d32); + + pcgcctl.d32 = 0; + pcgcctl.b.extnd_hiber_pwrclmp = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, 0, pcgcctl.d32); + + pcgcctl.d32 = 0; + pcgcctl.b.extnd_hiber_switch = 1; + core_if->gr_backup->xhib_gpwrdn = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn); + core_if->gr_backup->xhib_pcgcctl = DWC_READ_REG32(core_if->pcgcctl) | pcgcctl.d32; + DWC_MODIFY_REG32(core_if->pcgcctl, 0, pcgcctl.d32); + + DWC_DEBUGPL(DBG_ANY, "Finished entering to extended hibernation\n"); + + return 1; + } + } + } else { + if (core_if->op_state == A_PERIPHERAL) { + DWC_DEBUGPL(DBG_ANY, "a_peripheral->a_host\n"); + /* Clear the a_peripheral flag, back to a_host. */ + DWC_SPINUNLOCK(core_if->lock); + cil_pcd_stop(core_if); + cil_hcd_start(core_if); + DWC_SPINLOCK(core_if->lock); + core_if->op_state = A_HOST; + } + } + + /* Change to L2(suspend) state */ + core_if->lx_state = DWC_OTG_L2; + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.usbsuspend = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32); + + return 1; +} + +static int32_t dwc_otg_handle_xhib_exit_intr(dwc_otg_core_if_t * core_if) +{ + gpwrdn_data_t gpwrdn = {.d32 = 0 }; + pcgcctl_data_t pcgcctl = {.d32 = 0 }; + gahbcfg_data_t gahbcfg = {.d32 = 0 }; + + dwc_udelay(10); + + /* Program GPIO register while entering to xHib */ + DWC_WRITE_REG32(&core_if->core_global_regs->ggpio, 0x0); + + pcgcctl.d32 = core_if->gr_backup->xhib_pcgcctl; + pcgcctl.b.extnd_hiber_pwrclmp = 0; + DWC_WRITE_REG32(core_if->pcgcctl, pcgcctl.d32); + dwc_udelay(10); + + gpwrdn.d32 = core_if->gr_backup->xhib_gpwrdn; + gpwrdn.b.restore = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32); + dwc_udelay(10); + + restore_lpm_i2c_regs(core_if); + + pcgcctl.d32 = core_if->gr_backup->pcgcctl_local & (0x3FFFF << 14); + pcgcctl.b.max_xcvrselect = 1; + pcgcctl.b.ess_reg_restored = 0; + pcgcctl.b.extnd_hiber_switch = 0; + pcgcctl.b.extnd_hiber_pwrclmp = 0; + pcgcctl.b.enbl_extnd_hiber = 1; + DWC_WRITE_REG32(core_if->pcgcctl, pcgcctl.d32); + + gahbcfg.d32 = core_if->gr_backup->gahbcfg_local; + gahbcfg.b.glblintrmsk = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gahbcfg, gahbcfg.d32); + + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, 0xFFFFFFFF); + DWC_WRITE_REG32(&core_if->core_global_regs->gintmsk, 0x1 << 16); + + DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg, + core_if->gr_backup->gusbcfg_local); + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dcfg, + core_if->dr_backup->dcfg); + + pcgcctl.d32 = 0; + pcgcctl.d32 = core_if->gr_backup->pcgcctl_local & (0x3FFFF << 14); + pcgcctl.b.max_xcvrselect = 1; + pcgcctl.d32 |= 0x608; + DWC_WRITE_REG32(core_if->pcgcctl, pcgcctl.d32); + dwc_udelay(10); + + pcgcctl.d32 = 0; + pcgcctl.d32 = core_if->gr_backup->pcgcctl_local & (0x3FFFF << 14); + pcgcctl.b.max_xcvrselect = 1; + pcgcctl.b.ess_reg_restored = 1; + pcgcctl.b.enbl_extnd_hiber = 1; + pcgcctl.b.rstpdwnmodule = 1; + pcgcctl.b.restoremode = 1; + DWC_WRITE_REG32(core_if->pcgcctl, pcgcctl.d32); + + DWC_DEBUGPL(DBG_ANY, "%s called\n", __FUNCTION__); + + return 1; +} + +#ifdef CONFIG_USB_DWC_OTG_LPM +/** + * This function hadles LPM transaction received interrupt. + */ +static int32_t dwc_otg_handle_lpm_intr(dwc_otg_core_if_t * core_if) +{ + glpmcfg_data_t lpmcfg; + gintsts_data_t gintsts; + + if (!core_if->core_params->lpm_enable) { + DWC_PRINTF("Unexpected LPM interrupt\n"); + } + + lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg); + DWC_PRINTF("LPM config register = 0x%08x\n", lpmcfg.d32); + + if (dwc_otg_is_host_mode(core_if)) { + cil_hcd_sleep(core_if); + } else { + lpmcfg.b.hird_thres |= (1 << 4); + DWC_WRITE_REG32(&core_if->core_global_regs->glpmcfg, + lpmcfg.d32); + } + + /* Examine prt_sleep_sts after TL1TokenTetry period max (10 us) */ + dwc_udelay(10); + lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg); + if (lpmcfg.b.prt_sleep_sts) { + /* Save the current state */ + core_if->lx_state = DWC_OTG_L1; + } + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.lpmtranrcvd = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32); + return 1; +} +#endif /* CONFIG_USB_DWC_OTG_LPM */ + +/** + * This function returns the Core Interrupt register. + */ +static inline uint32_t dwc_otg_read_common_intr(dwc_otg_core_if_t * core_if, gintmsk_data_t *reenable_gintmsk, dwc_otg_hcd_t *hcd) +{ + gahbcfg_data_t gahbcfg = {.d32 = 0 }; + gintsts_data_t gintsts; + gintmsk_data_t gintmsk; + gintmsk_data_t gintmsk_common = {.d32 = 0 }; + gintmsk_common.b.wkupintr = 1; + gintmsk_common.b.sessreqintr = 1; + gintmsk_common.b.conidstschng = 1; + gintmsk_common.b.otgintr = 1; + gintmsk_common.b.modemismatch = 1; + gintmsk_common.b.disconnect = 1; + gintmsk_common.b.usbsuspend = 1; +#ifdef CONFIG_USB_DWC_OTG_LPM + gintmsk_common.b.lpmtranrcvd = 1; +#endif + gintmsk_common.b.restoredone = 1; + if(dwc_otg_is_device_mode(core_if)) + { + /** @todo: The port interrupt occurs while in device + * mode. Added code to CIL to clear the interrupt for now! + */ + gintmsk_common.b.portintr = 1; + } + gintsts.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintsts); + gintmsk.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintmsk); + if(fiq_enable) { + local_fiq_disable(); + /* Pull in the interrupts that the FIQ has masked */ + gintmsk.d32 |= ~(hcd->fiq_state->gintmsk_saved.d32); + gintmsk.d32 |= gintmsk_common.d32; + /* for the upstairs function to reenable - have to read it here in case FIQ triggers again */ + reenable_gintmsk->d32 = gintmsk.d32; + local_fiq_enable(); + } + + gahbcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->gahbcfg); + +#ifdef DEBUG + /* if any common interrupts set */ + if (gintsts.d32 & gintmsk_common.d32) { + DWC_DEBUGPL(DBG_ANY, "common_intr: gintsts=%08x gintmsk=%08x\n", + gintsts.d32, gintmsk.d32); + } +#endif + if (!fiq_enable){ + if (gahbcfg.b.glblintrmsk) + return ((gintsts.d32 & gintmsk.d32) & gintmsk_common.d32); + else + return 0; + } else { + /* Our IRQ kicker is no longer the USB hardware, it's the MPHI interface. + * Can't trust the global interrupt mask bit in this case. + */ + return ((gintsts.d32 & gintmsk.d32) & gintmsk_common.d32); + } + +} + +/* MACRO for clearing interupt bits in GPWRDN register */ +#define CLEAR_GPWRDN_INTR(__core_if,__intr) \ +do { \ + gpwrdn_data_t gpwrdn = {.d32=0}; \ + gpwrdn.b.__intr = 1; \ + DWC_MODIFY_REG32(&__core_if->core_global_regs->gpwrdn, \ + 0, gpwrdn.d32); \ +} while (0) + +/** + * Common interrupt handler. + * + * The common interrupts are those that occur in both Host and Device mode. + * This handler handles the following interrupts: + * - Mode Mismatch Interrupt + * - Disconnect Interrupt + * - OTG Interrupt + * - Connector ID Status Change Interrupt + * - Session Request Interrupt. + * - Resume / Remote Wakeup Detected Interrupt. + * - LPM Transaction Received Interrupt + * - ADP Transaction Received Interrupt + * + */ +int32_t dwc_otg_handle_common_intr(void *dev) +{ + int retval = 0; + gintsts_data_t gintsts; + gintmsk_data_t gintmsk_reenable = { .d32 = 0 }; + gpwrdn_data_t gpwrdn = {.d32 = 0 }; + dwc_otg_device_t *otg_dev = dev; + dwc_otg_core_if_t *core_if = otg_dev->core_if; + gpwrdn.d32 = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn); + if (dwc_otg_is_device_mode(core_if)) + core_if->frame_num = dwc_otg_get_frame_number(core_if); + + if (core_if->lock) + DWC_SPINLOCK(core_if->lock); + + if (core_if->power_down == 3 && core_if->xhib == 1) { + DWC_DEBUGPL(DBG_ANY, "Exiting from xHIB state\n"); + retval |= dwc_otg_handle_xhib_exit_intr(core_if); + core_if->xhib = 2; + if (core_if->lock) + DWC_SPINUNLOCK(core_if->lock); + + return retval; + } + + if (core_if->hibernation_suspend <= 0) { + /* read_common will have to poke the FIQ's saved mask. We must then clear this mask at the end + * of this handler - god only knows why it's done like this + */ + gintsts.d32 = dwc_otg_read_common_intr(core_if, &gintmsk_reenable, otg_dev->hcd); + + if (gintsts.b.modemismatch) { + retval |= dwc_otg_handle_mode_mismatch_intr(core_if); + } + if (gintsts.b.otgintr) { + retval |= dwc_otg_handle_otg_intr(core_if); + } + if (gintsts.b.conidstschng) { + retval |= + dwc_otg_handle_conn_id_status_change_intr(core_if); + } + if (gintsts.b.disconnect) { + retval |= dwc_otg_handle_disconnect_intr(core_if); + } + if (gintsts.b.sessreqintr) { + retval |= dwc_otg_handle_session_req_intr(core_if); + } + if (gintsts.b.wkupintr) { + retval |= dwc_otg_handle_wakeup_detected_intr(core_if); + } + if (gintsts.b.usbsuspend) { + retval |= dwc_otg_handle_usb_suspend_intr(core_if); + } +#ifdef CONFIG_USB_DWC_OTG_LPM + if (gintsts.b.lpmtranrcvd) { + retval |= dwc_otg_handle_lpm_intr(core_if); + } +#endif + if (gintsts.b.restoredone) { + gintsts.d32 = 0; + if (core_if->power_down == 2) + core_if->hibernation_suspend = -1; + else if (core_if->power_down == 3 && core_if->xhib == 2) { + gpwrdn_data_t gpwrdn = {.d32 = 0 }; + pcgcctl_data_t pcgcctl = {.d32 = 0 }; + dctl_data_t dctl = {.d32 = 0 }; + + DWC_WRITE_REG32(&core_if->core_global_regs-> + gintsts, 0xFFFFFFFF); + + DWC_DEBUGPL(DBG_ANY, + "RESTORE DONE generated\n"); + + gpwrdn.b.restore = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + pcgcctl.b.rstpdwnmodule = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, pcgcctl.d32, 0); + + DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg, core_if->gr_backup->gusbcfg_local); + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dcfg, core_if->dr_backup->dcfg); + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dctl, core_if->dr_backup->dctl); + dwc_udelay(50); + + dctl.b.pwronprgdone = 1; + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, 0, dctl.d32); + dwc_udelay(10); + + dwc_otg_restore_global_regs(core_if); + dwc_otg_restore_dev_regs(core_if, 0); + + dctl.d32 = 0; + dctl.b.pwronprgdone = 1; + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32, 0); + dwc_udelay(10); + + pcgcctl.d32 = 0; + pcgcctl.b.enbl_extnd_hiber = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, pcgcctl.d32, 0); + + /* The core will be in ON STATE */ + core_if->lx_state = DWC_OTG_L0; + core_if->xhib = 0; + + DWC_SPINUNLOCK(core_if->lock); + if (core_if->pcd_cb && core_if->pcd_cb->resume_wakeup) { + core_if->pcd_cb->resume_wakeup(core_if->pcd_cb->p); + } + DWC_SPINLOCK(core_if->lock); + + } + + gintsts.b.restoredone = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts,gintsts.d32); + DWC_PRINTF(" --Restore done interrupt received-- \n"); + retval |= 1; + } + if (gintsts.b.portintr && dwc_otg_is_device_mode(core_if)) { + /* The port interrupt occurs while in device mode with HPRT0 + * Port Enable/Disable. + */ + gintsts.d32 = 0; + gintsts.b.portintr = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts,gintsts.d32); + retval |= 1; + gintmsk_reenable.b.portintr = 1; + + } + /* Did we actually handle anything? if so, unmask the interrupt */ +// fiq_print(FIQDBG_INT, otg_dev->hcd->fiq_state, "CILOUT %1d", retval); +// fiq_print(FIQDBG_INT, otg_dev->hcd->fiq_state, "%08x", gintsts.d32); +// fiq_print(FIQDBG_INT, otg_dev->hcd->fiq_state, "%08x", gintmsk_reenable.d32); + if (retval && fiq_enable) { + DWC_WRITE_REG32(&core_if->core_global_regs->gintmsk, gintmsk_reenable.d32); + } + + } else { + DWC_DEBUGPL(DBG_ANY, "gpwrdn=%08x\n", gpwrdn.d32); + + if (gpwrdn.b.disconn_det && gpwrdn.b.disconn_det_msk) { + CLEAR_GPWRDN_INTR(core_if, disconn_det); + if (gpwrdn.b.linestate == 0) { + dwc_otg_handle_pwrdn_disconnect_intr(core_if); + } else { + DWC_PRINTF("Disconnect detected while linestate is not 0\n"); + } + + retval |= 1; + } + if (gpwrdn.b.lnstschng && gpwrdn.b.lnstchng_msk) { + CLEAR_GPWRDN_INTR(core_if, lnstschng); + /* remote wakeup from hibernation */ + if (gpwrdn.b.linestate == 2 || gpwrdn.b.linestate == 1) { + dwc_otg_handle_pwrdn_wakeup_detected_intr(core_if); + } else { + DWC_PRINTF("gpwrdn.linestate = %d\n", gpwrdn.b.linestate); + } + retval |= 1; + } + if (gpwrdn.b.rst_det && gpwrdn.b.rst_det_msk) { + CLEAR_GPWRDN_INTR(core_if, rst_det); + if (gpwrdn.b.linestate == 0) { + DWC_PRINTF("Reset detected\n"); + retval |= dwc_otg_device_hibernation_restore(core_if, 0, 1); + } + } + if (gpwrdn.b.srp_det && gpwrdn.b.srp_det_msk) { + CLEAR_GPWRDN_INTR(core_if, srp_det); + dwc_otg_handle_pwrdn_srp_intr(core_if); + retval |= 1; + } + } + /* Handle ADP interrupt here */ + if (gpwrdn.b.adp_int) { + DWC_PRINTF("ADP interrupt\n"); + CLEAR_GPWRDN_INTR(core_if, adp_int); + dwc_otg_adp_handle_intr(core_if); + retval |= 1; + } + if (gpwrdn.b.sts_chngint && gpwrdn.b.sts_chngint_msk) { + DWC_PRINTF("STS CHNG interrupt asserted\n"); + CLEAR_GPWRDN_INTR(core_if, sts_chngint); + dwc_otg_handle_pwrdn_stschng_intr(otg_dev); + + retval |= 1; + } + if (core_if->lock) + DWC_SPINUNLOCK(core_if->lock); + return retval; +} diff --git a/drivers/usb/host/dwc_otg/dwc_otg_core_if.h b/drivers/usb/host/dwc_otg/dwc_otg_core_if.h new file mode 100644 index 0000000000000000000000000000000000000000..4138fd173337dd566d402d5b924d4dc121e32428 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_core_if.h @@ -0,0 +1,705 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_core_if.h $ + * $Revision: #13 $ + * $Date: 2012/08/10 $ + * $Change: 2047372 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ +#if !defined(__DWC_CORE_IF_H__) +#define __DWC_CORE_IF_H__ + +#include "dwc_os.h" + +/** @file + * This file defines DWC_OTG Core API + */ + +struct dwc_otg_core_if; +typedef struct dwc_otg_core_if dwc_otg_core_if_t; + +/** Maximum number of Periodic FIFOs */ +#define MAX_PERIO_FIFOS 15 +/** Maximum number of Periodic FIFOs */ +#define MAX_TX_FIFOS 15 + +/** Maximum number of Endpoints/HostChannels */ +#define MAX_EPS_CHANNELS 16 + +extern dwc_otg_core_if_t *dwc_otg_cil_init(const uint32_t * _reg_base_addr); +extern void dwc_otg_core_init(dwc_otg_core_if_t * _core_if); +extern void dwc_otg_cil_remove(dwc_otg_core_if_t * _core_if); + +extern void dwc_otg_enable_global_interrupts(dwc_otg_core_if_t * _core_if); +extern void dwc_otg_disable_global_interrupts(dwc_otg_core_if_t * _core_if); + +extern uint8_t dwc_otg_is_device_mode(dwc_otg_core_if_t * _core_if); +extern uint8_t dwc_otg_is_host_mode(dwc_otg_core_if_t * _core_if); + +extern uint8_t dwc_otg_is_dma_enable(dwc_otg_core_if_t * core_if); + +/** This function should be called on every hardware interrupt. */ +extern int32_t dwc_otg_handle_common_intr(void *otg_dev); + +/** @name OTG Core Parameters */ +/** @{ */ + +/** + * Specifies the OTG capabilities. The driver will automatically + * detect the value for this parameter if none is specified. + * 0 - HNP and SRP capable (default) + * 1 - SRP Only capable + * 2 - No HNP/SRP capable + */ +extern int dwc_otg_set_param_otg_cap(dwc_otg_core_if_t * core_if, int32_t val); +extern int32_t dwc_otg_get_param_otg_cap(dwc_otg_core_if_t * core_if); +#define DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE 0 +#define DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE 1 +#define DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE 2 +#define dwc_param_otg_cap_default DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE + +extern int dwc_otg_set_param_opt(dwc_otg_core_if_t * core_if, int32_t val); +extern int32_t dwc_otg_get_param_opt(dwc_otg_core_if_t * core_if); +#define dwc_param_opt_default 1 + +/** + * Specifies whether to use slave or DMA mode for accessing the data + * FIFOs. The driver will automatically detect the value for this + * parameter if none is specified. + * 0 - Slave + * 1 - DMA (default, if available) + */ +extern int dwc_otg_set_param_dma_enable(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_dma_enable(dwc_otg_core_if_t * core_if); +#define dwc_param_dma_enable_default 1 + +/** + * When DMA mode is enabled specifies whether to use + * address DMA or DMA Descritor mode for accessing the data + * FIFOs in device mode. The driver will automatically detect + * the value for this parameter if none is specified. + * 0 - address DMA + * 1 - DMA Descriptor(default, if available) + */ +extern int dwc_otg_set_param_dma_desc_enable(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_dma_desc_enable(dwc_otg_core_if_t * core_if); +//#define dwc_param_dma_desc_enable_default 1 +#define dwc_param_dma_desc_enable_default 0 // Broadcom BCM2708 + +/** The DMA Burst size (applicable only for External DMA + * Mode). 1, 4, 8 16, 32, 64, 128, 256 (default 32) + */ +extern int dwc_otg_set_param_dma_burst_size(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_dma_burst_size(dwc_otg_core_if_t * core_if); +#define dwc_param_dma_burst_size_default 32 + +/** + * Specifies the maximum speed of operation in host and device mode. + * The actual speed depends on the speed of the attached device and + * the value of phy_type. The actual speed depends on the speed of the + * attached device. + * 0 - High Speed (default) + * 1 - Full Speed + */ +extern int dwc_otg_set_param_speed(dwc_otg_core_if_t * core_if, int32_t val); +extern int32_t dwc_otg_get_param_speed(dwc_otg_core_if_t * core_if); +#define dwc_param_speed_default 0 +#define DWC_SPEED_PARAM_HIGH 0 +#define DWC_SPEED_PARAM_FULL 1 + +/** Specifies whether low power mode is supported when attached + * to a Full Speed or Low Speed device in host mode. + * 0 - Don't support low power mode (default) + * 1 - Support low power mode + */ +extern int dwc_otg_set_param_host_support_fs_ls_low_power(dwc_otg_core_if_t * + core_if, int32_t val); +extern int32_t dwc_otg_get_param_host_support_fs_ls_low_power(dwc_otg_core_if_t + * core_if); +#define dwc_param_host_support_fs_ls_low_power_default 0 + +/** Specifies the PHY clock rate in low power mode when connected to a + * Low Speed device in host mode. This parameter is applicable only if + * HOST_SUPPORT_FS_LS_LOW_POWER is enabled. If PHY_TYPE is set to FS + * then defaults to 6 MHZ otherwise 48 MHZ. + * + * 0 - 48 MHz + * 1 - 6 MHz + */ +extern int dwc_otg_set_param_host_ls_low_power_phy_clk(dwc_otg_core_if_t * + core_if, int32_t val); +extern int32_t dwc_otg_get_param_host_ls_low_power_phy_clk(dwc_otg_core_if_t * + core_if); +#define dwc_param_host_ls_low_power_phy_clk_default 0 +#define DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ 0 +#define DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ 1 + +/** + * 0 - Use cC FIFO size parameters + * 1 - Allow dynamic FIFO sizing (default) + */ +extern int dwc_otg_set_param_enable_dynamic_fifo(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_enable_dynamic_fifo(dwc_otg_core_if_t * + core_if); +#define dwc_param_enable_dynamic_fifo_default 1 + +/** Total number of 4-byte words in the data FIFO memory. This + * memory includes the Rx FIFO, non-periodic Tx FIFO, and periodic + * Tx FIFOs. + * 32 to 32768 (default 8192) + * Note: The total FIFO memory depth in the FPGA configuration is 8192. + */ +extern int dwc_otg_set_param_data_fifo_size(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_data_fifo_size(dwc_otg_core_if_t * core_if); +//#define dwc_param_data_fifo_size_default 8192 +#define dwc_param_data_fifo_size_default 0xFF0 // Broadcom BCM2708 + +/** Number of 4-byte words in the Rx FIFO in device mode when dynamic + * FIFO sizing is enabled. + * 16 to 32768 (default 1064) + */ +extern int dwc_otg_set_param_dev_rx_fifo_size(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_dev_rx_fifo_size(dwc_otg_core_if_t * core_if); +#define dwc_param_dev_rx_fifo_size_default 1064 + +/** Number of 4-byte words in the non-periodic Tx FIFO in device mode + * when dynamic FIFO sizing is enabled. + * 16 to 32768 (default 1024) + */ +extern int dwc_otg_set_param_dev_nperio_tx_fifo_size(dwc_otg_core_if_t * + core_if, int32_t val); +extern int32_t dwc_otg_get_param_dev_nperio_tx_fifo_size(dwc_otg_core_if_t * + core_if); +#define dwc_param_dev_nperio_tx_fifo_size_default 1024 + +/** Number of 4-byte words in each of the periodic Tx FIFOs in device + * mode when dynamic FIFO sizing is enabled. + * 4 to 768 (default 256) + */ +extern int dwc_otg_set_param_dev_perio_tx_fifo_size(dwc_otg_core_if_t * core_if, + int32_t val, int fifo_num); +extern int32_t dwc_otg_get_param_dev_perio_tx_fifo_size(dwc_otg_core_if_t * + core_if, int fifo_num); +#define dwc_param_dev_perio_tx_fifo_size_default 256 + +/** Number of 4-byte words in the Rx FIFO in host mode when dynamic + * FIFO sizing is enabled. + * 16 to 32768 (default 1024) + */ +extern int dwc_otg_set_param_host_rx_fifo_size(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_host_rx_fifo_size(dwc_otg_core_if_t * core_if); +//#define dwc_param_host_rx_fifo_size_default 1024 +#define dwc_param_host_rx_fifo_size_default 774 // Broadcom BCM2708 + +/** Number of 4-byte words in the non-periodic Tx FIFO in host mode + * when Dynamic FIFO sizing is enabled in the core. + * 16 to 32768 (default 1024) + */ +extern int dwc_otg_set_param_host_nperio_tx_fifo_size(dwc_otg_core_if_t * + core_if, int32_t val); +extern int32_t dwc_otg_get_param_host_nperio_tx_fifo_size(dwc_otg_core_if_t * + core_if); +//#define dwc_param_host_nperio_tx_fifo_size_default 1024 +#define dwc_param_host_nperio_tx_fifo_size_default 0x100 // Broadcom BCM2708 + +/** Number of 4-byte words in the host periodic Tx FIFO when dynamic + * FIFO sizing is enabled. + * 16 to 32768 (default 1024) + */ +extern int dwc_otg_set_param_host_perio_tx_fifo_size(dwc_otg_core_if_t * + core_if, int32_t val); +extern int32_t dwc_otg_get_param_host_perio_tx_fifo_size(dwc_otg_core_if_t * + core_if); +//#define dwc_param_host_perio_tx_fifo_size_default 1024 +#define dwc_param_host_perio_tx_fifo_size_default 0x200 // Broadcom BCM2708 + +/** The maximum transfer size supported in bytes. + * 2047 to 65,535 (default 65,535) + */ +extern int dwc_otg_set_param_max_transfer_size(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_max_transfer_size(dwc_otg_core_if_t * core_if); +#define dwc_param_max_transfer_size_default 65535 + +/** The maximum number of packets in a transfer. + * 15 to 511 (default 511) + */ +extern int dwc_otg_set_param_max_packet_count(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_max_packet_count(dwc_otg_core_if_t * core_if); +#define dwc_param_max_packet_count_default 511 + +/** The number of host channel registers to use. + * 1 to 16 (default 12) + * Note: The FPGA configuration supports a maximum of 12 host channels. + */ +extern int dwc_otg_set_param_host_channels(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_host_channels(dwc_otg_core_if_t * core_if); +//#define dwc_param_host_channels_default 12 +#define dwc_param_host_channels_default 8 // Broadcom BCM2708 + +/** The number of endpoints in addition to EP0 available for device + * mode operations. + * 1 to 15 (default 6 IN and OUT) + * Note: The FPGA configuration supports a maximum of 6 IN and OUT + * endpoints in addition to EP0. + */ +extern int dwc_otg_set_param_dev_endpoints(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_dev_endpoints(dwc_otg_core_if_t * core_if); +#define dwc_param_dev_endpoints_default 6 + +/** + * Specifies the type of PHY interface to use. By default, the driver + * will automatically detect the phy_type. + * + * 0 - Full Speed PHY + * 1 - UTMI+ (default) + * 2 - ULPI + */ +extern int dwc_otg_set_param_phy_type(dwc_otg_core_if_t * core_if, int32_t val); +extern int32_t dwc_otg_get_param_phy_type(dwc_otg_core_if_t * core_if); +#define DWC_PHY_TYPE_PARAM_FS 0 +#define DWC_PHY_TYPE_PARAM_UTMI 1 +#define DWC_PHY_TYPE_PARAM_ULPI 2 +#define dwc_param_phy_type_default DWC_PHY_TYPE_PARAM_UTMI + +/** + * Specifies the UTMI+ Data Width. This parameter is + * applicable for a PHY_TYPE of UTMI+ or ULPI. (For a ULPI + * PHY_TYPE, this parameter indicates the data width between + * the MAC and the ULPI Wrapper.) Also, this parameter is + * applicable only if the OTG_HSPHY_WIDTH cC parameter was set + * to "8 and 16 bits", meaning that the core has been + * configured to work at either data path width. + * + * 8 or 16 bits (default 16) + */ +extern int dwc_otg_set_param_phy_utmi_width(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_phy_utmi_width(dwc_otg_core_if_t * core_if); +//#define dwc_param_phy_utmi_width_default 16 +#define dwc_param_phy_utmi_width_default 8 // Broadcom BCM2708 + +/** + * Specifies whether the ULPI operates at double or single + * data rate. This parameter is only applicable if PHY_TYPE is + * ULPI. + * + * 0 - single data rate ULPI interface with 8 bit wide data + * bus (default) + * 1 - double data rate ULPI interface with 4 bit wide data + * bus + */ +extern int dwc_otg_set_param_phy_ulpi_ddr(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_phy_ulpi_ddr(dwc_otg_core_if_t * core_if); +#define dwc_param_phy_ulpi_ddr_default 0 + +/** + * Specifies whether to use the internal or external supply to + * drive the vbus with a ULPI phy. + */ +extern int dwc_otg_set_param_phy_ulpi_ext_vbus(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_phy_ulpi_ext_vbus(dwc_otg_core_if_t * core_if); +#define DWC_PHY_ULPI_INTERNAL_VBUS 0 +#define DWC_PHY_ULPI_EXTERNAL_VBUS 1 +#define dwc_param_phy_ulpi_ext_vbus_default DWC_PHY_ULPI_INTERNAL_VBUS + +/** + * Specifies whether to use the I2Cinterface for full speed PHY. This + * parameter is only applicable if PHY_TYPE is FS. + * 0 - No (default) + * 1 - Yes + */ +extern int dwc_otg_set_param_i2c_enable(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_i2c_enable(dwc_otg_core_if_t * core_if); +#define dwc_param_i2c_enable_default 0 + +extern int dwc_otg_set_param_ulpi_fs_ls(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_ulpi_fs_ls(dwc_otg_core_if_t * core_if); +#define dwc_param_ulpi_fs_ls_default 0 + +extern int dwc_otg_set_param_ts_dline(dwc_otg_core_if_t * core_if, int32_t val); +extern int32_t dwc_otg_get_param_ts_dline(dwc_otg_core_if_t * core_if); +#define dwc_param_ts_dline_default 0 + +/** + * Specifies whether dedicated transmit FIFOs are + * enabled for non periodic IN endpoints in device mode + * 0 - No + * 1 - Yes + */ +extern int dwc_otg_set_param_en_multiple_tx_fifo(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_en_multiple_tx_fifo(dwc_otg_core_if_t * + core_if); +#define dwc_param_en_multiple_tx_fifo_default 1 + +/** Number of 4-byte words in each of the Tx FIFOs in device + * mode when dynamic FIFO sizing is enabled. + * 4 to 768 (default 256) + */ +extern int dwc_otg_set_param_dev_tx_fifo_size(dwc_otg_core_if_t * core_if, + int fifo_num, int32_t val); +extern int32_t dwc_otg_get_param_dev_tx_fifo_size(dwc_otg_core_if_t * core_if, + int fifo_num); +#define dwc_param_dev_tx_fifo_size_default 768 + +/** Thresholding enable flag- + * bit 0 - enable non-ISO Tx thresholding + * bit 1 - enable ISO Tx thresholding + * bit 2 - enable Rx thresholding + */ +extern int dwc_otg_set_param_thr_ctl(dwc_otg_core_if_t * core_if, int32_t val); +extern int32_t dwc_otg_get_thr_ctl(dwc_otg_core_if_t * core_if, int fifo_num); +#define dwc_param_thr_ctl_default 0 + +/** Thresholding length for Tx + * FIFOs in 32 bit DWORDs + */ +extern int dwc_otg_set_param_tx_thr_length(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_tx_thr_length(dwc_otg_core_if_t * core_if); +#define dwc_param_tx_thr_length_default 64 + +/** Thresholding length for Rx + * FIFOs in 32 bit DWORDs + */ +extern int dwc_otg_set_param_rx_thr_length(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_rx_thr_length(dwc_otg_core_if_t * core_if); +#define dwc_param_rx_thr_length_default 64 + +/** + * Specifies whether LPM (Link Power Management) support is enabled + */ +extern int dwc_otg_set_param_lpm_enable(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_lpm_enable(dwc_otg_core_if_t * core_if); +#define dwc_param_lpm_enable_default 1 + +/** + * Specifies whether PTI enhancement is enabled + */ +extern int dwc_otg_set_param_pti_enable(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_pti_enable(dwc_otg_core_if_t * core_if); +#define dwc_param_pti_enable_default 0 + +/** + * Specifies whether MPI enhancement is enabled + */ +extern int dwc_otg_set_param_mpi_enable(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_mpi_enable(dwc_otg_core_if_t * core_if); +#define dwc_param_mpi_enable_default 0 + +/** + * Specifies whether ADP capability is enabled + */ +extern int dwc_otg_set_param_adp_enable(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_adp_enable(dwc_otg_core_if_t * core_if); +#define dwc_param_adp_enable_default 0 + +/** + * Specifies whether IC_USB capability is enabled + */ + +extern int dwc_otg_set_param_ic_usb_cap(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_ic_usb_cap(dwc_otg_core_if_t * core_if); +#define dwc_param_ic_usb_cap_default 0 + +extern int dwc_otg_set_param_ahb_thr_ratio(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_ahb_thr_ratio(dwc_otg_core_if_t * core_if); +#define dwc_param_ahb_thr_ratio_default 0 + +extern int dwc_otg_set_param_power_down(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_power_down(dwc_otg_core_if_t * core_if); +#define dwc_param_power_down_default 0 + +extern int dwc_otg_set_param_reload_ctl(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_reload_ctl(dwc_otg_core_if_t * core_if); +#define dwc_param_reload_ctl_default 0 + +extern int dwc_otg_set_param_dev_out_nak(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_dev_out_nak(dwc_otg_core_if_t * core_if); +#define dwc_param_dev_out_nak_default 0 + +extern int dwc_otg_set_param_cont_on_bna(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_cont_on_bna(dwc_otg_core_if_t * core_if); +#define dwc_param_cont_on_bna_default 0 + +extern int dwc_otg_set_param_ahb_single(dwc_otg_core_if_t * core_if, + int32_t val); +extern int32_t dwc_otg_get_param_ahb_single(dwc_otg_core_if_t * core_if); +#define dwc_param_ahb_single_default 0 + +extern int dwc_otg_set_param_otg_ver(dwc_otg_core_if_t * core_if, int32_t val); +extern int32_t dwc_otg_get_param_otg_ver(dwc_otg_core_if_t * core_if); +#define dwc_param_otg_ver_default 0 + +/** @} */ + +/** @name Access to registers and bit-fields */ + +/** + * Dump core registers and SPRAM + */ +extern void dwc_otg_dump_dev_registers(dwc_otg_core_if_t * _core_if); +extern void dwc_otg_dump_spram(dwc_otg_core_if_t * _core_if); +extern void dwc_otg_dump_host_registers(dwc_otg_core_if_t * _core_if); +extern void dwc_otg_dump_global_registers(dwc_otg_core_if_t * _core_if); + +/** + * Get host negotiation status. + */ +extern uint32_t dwc_otg_get_hnpstatus(dwc_otg_core_if_t * core_if); + +/** + * Get srp status + */ +extern uint32_t dwc_otg_get_srpstatus(dwc_otg_core_if_t * core_if); + +/** + * Set hnpreq bit in the GOTGCTL register. + */ +extern void dwc_otg_set_hnpreq(dwc_otg_core_if_t * core_if, uint32_t val); + +/** + * Get Content of SNPSID register. + */ +extern uint32_t dwc_otg_get_gsnpsid(dwc_otg_core_if_t * core_if); + +/** + * Get current mode. + * Returns 0 if in device mode, and 1 if in host mode. + */ +extern uint32_t dwc_otg_get_mode(dwc_otg_core_if_t * core_if); + +/** + * Get value of hnpcapable field in the GUSBCFG register + */ +extern uint32_t dwc_otg_get_hnpcapable(dwc_otg_core_if_t * core_if); +/** + * Set value of hnpcapable field in the GUSBCFG register + */ +extern void dwc_otg_set_hnpcapable(dwc_otg_core_if_t * core_if, uint32_t val); + +/** + * Get value of srpcapable field in the GUSBCFG register + */ +extern uint32_t dwc_otg_get_srpcapable(dwc_otg_core_if_t * core_if); +/** + * Set value of srpcapable field in the GUSBCFG register + */ +extern void dwc_otg_set_srpcapable(dwc_otg_core_if_t * core_if, uint32_t val); + +/** + * Get value of devspeed field in the DCFG register + */ +extern uint32_t dwc_otg_get_devspeed(dwc_otg_core_if_t * core_if); +/** + * Set value of devspeed field in the DCFG register + */ +extern void dwc_otg_set_devspeed(dwc_otg_core_if_t * core_if, uint32_t val); + +/** + * Get the value of busconnected field from the HPRT0 register + */ +extern uint32_t dwc_otg_get_busconnected(dwc_otg_core_if_t * core_if); + +/** + * Gets the device enumeration Speed. + */ +extern uint32_t dwc_otg_get_enumspeed(dwc_otg_core_if_t * core_if); + +/** + * Get value of prtpwr field from the HPRT0 register + */ +extern uint32_t dwc_otg_get_prtpower(dwc_otg_core_if_t * core_if); + +/** + * Get value of flag indicating core state - hibernated or not + */ +extern uint32_t dwc_otg_get_core_state(dwc_otg_core_if_t * core_if); + +/** + * Set value of prtpwr field from the HPRT0 register + */ +extern void dwc_otg_set_prtpower(dwc_otg_core_if_t * core_if, uint32_t val); + +/** + * Get value of prtsusp field from the HPRT0 regsiter + */ +extern uint32_t dwc_otg_get_prtsuspend(dwc_otg_core_if_t * core_if); +/** + * Set value of prtpwr field from the HPRT0 register + */ +extern void dwc_otg_set_prtsuspend(dwc_otg_core_if_t * core_if, uint32_t val); + +/** + * Get value of ModeChTimEn field from the HCFG regsiter + */ +extern uint32_t dwc_otg_get_mode_ch_tim(dwc_otg_core_if_t * core_if); +/** + * Set value of ModeChTimEn field from the HCFG regsiter + */ +extern void dwc_otg_set_mode_ch_tim(dwc_otg_core_if_t * core_if, uint32_t val); + +/** + * Get value of Fram Interval field from the HFIR regsiter + */ +extern uint32_t dwc_otg_get_fr_interval(dwc_otg_core_if_t * core_if); +/** + * Set value of Frame Interval field from the HFIR regsiter + */ +extern void dwc_otg_set_fr_interval(dwc_otg_core_if_t * core_if, uint32_t val); + +/** + * Set value of prtres field from the HPRT0 register + *FIXME Remove? + */ +extern void dwc_otg_set_prtresume(dwc_otg_core_if_t * core_if, uint32_t val); + +/** + * Get value of rmtwkupsig bit in DCTL register + */ +extern uint32_t dwc_otg_get_remotewakesig(dwc_otg_core_if_t * core_if); + +/** + * Get value of prt_sleep_sts field from the GLPMCFG register + */ +extern uint32_t dwc_otg_get_lpm_portsleepstatus(dwc_otg_core_if_t * core_if); + +/** + * Get value of rem_wkup_en field from the GLPMCFG register + */ +extern uint32_t dwc_otg_get_lpm_remotewakeenabled(dwc_otg_core_if_t * core_if); + +/** + * Get value of appl_resp field from the GLPMCFG register + */ +extern uint32_t dwc_otg_get_lpmresponse(dwc_otg_core_if_t * core_if); +/** + * Set value of appl_resp field from the GLPMCFG register + */ +extern void dwc_otg_set_lpmresponse(dwc_otg_core_if_t * core_if, uint32_t val); + +/** + * Get value of hsic_connect field from the GLPMCFG register + */ +extern uint32_t dwc_otg_get_hsic_connect(dwc_otg_core_if_t * core_if); +/** + * Set value of hsic_connect field from the GLPMCFG register + */ +extern void dwc_otg_set_hsic_connect(dwc_otg_core_if_t * core_if, uint32_t val); + +/** + * Get value of inv_sel_hsic field from the GLPMCFG register. + */ +extern uint32_t dwc_otg_get_inv_sel_hsic(dwc_otg_core_if_t * core_if); +/** + * Set value of inv_sel_hsic field from the GLPMFG register. + */ +extern void dwc_otg_set_inv_sel_hsic(dwc_otg_core_if_t * core_if, uint32_t val); + +/* + * Some functions for accessing registers + */ + +/** + * GOTGCTL register + */ +extern uint32_t dwc_otg_get_gotgctl(dwc_otg_core_if_t * core_if); +extern void dwc_otg_set_gotgctl(dwc_otg_core_if_t * core_if, uint32_t val); + +/** + * GUSBCFG register + */ +extern uint32_t dwc_otg_get_gusbcfg(dwc_otg_core_if_t * core_if); +extern void dwc_otg_set_gusbcfg(dwc_otg_core_if_t * core_if, uint32_t val); + +/** + * GRXFSIZ register + */ +extern uint32_t dwc_otg_get_grxfsiz(dwc_otg_core_if_t * core_if); +extern void dwc_otg_set_grxfsiz(dwc_otg_core_if_t * core_if, uint32_t val); + +/** + * GNPTXFSIZ register + */ +extern uint32_t dwc_otg_get_gnptxfsiz(dwc_otg_core_if_t * core_if); +extern void dwc_otg_set_gnptxfsiz(dwc_otg_core_if_t * core_if, uint32_t val); + +extern uint32_t dwc_otg_get_gpvndctl(dwc_otg_core_if_t * core_if); +extern void dwc_otg_set_gpvndctl(dwc_otg_core_if_t * core_if, uint32_t val); + +/** + * GGPIO register + */ +extern uint32_t dwc_otg_get_ggpio(dwc_otg_core_if_t * core_if); +extern void dwc_otg_set_ggpio(dwc_otg_core_if_t * core_if, uint32_t val); + +/** + * GUID register + */ +extern uint32_t dwc_otg_get_guid(dwc_otg_core_if_t * core_if); +extern void dwc_otg_set_guid(dwc_otg_core_if_t * core_if, uint32_t val); + +/** + * HPRT0 register + */ +extern uint32_t dwc_otg_get_hprt0(dwc_otg_core_if_t * core_if); +extern void dwc_otg_set_hprt0(dwc_otg_core_if_t * core_if, uint32_t val); + +/** + * GHPTXFSIZE + */ +extern uint32_t dwc_otg_get_hptxfsiz(dwc_otg_core_if_t * core_if); + +/** @} */ + +#endif /* __DWC_CORE_IF_H__ */ diff --git a/drivers/usb/host/dwc_otg/dwc_otg_dbg.h b/drivers/usb/host/dwc_otg/dwc_otg_dbg.h new file mode 100644 index 0000000000000000000000000000000000000000..ccc24e010e449cbda488050d901e9a3995236e33 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_dbg.h @@ -0,0 +1,117 @@ +/* ========================================================================== + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +#ifndef __DWC_OTG_DBG_H__ +#define __DWC_OTG_DBG_H__ + +/** @file + * This file defines debug levels. + * Debugging support vanishes in non-debug builds. + */ + +/** + * The Debug Level bit-mask variable. + */ +extern uint32_t g_dbg_lvl; +/** + * Set the Debug Level variable. + */ +static inline uint32_t SET_DEBUG_LEVEL(const uint32_t new) +{ + uint32_t old = g_dbg_lvl; + g_dbg_lvl = new; + return old; +} + +#define DBG_USER (0x1) +/** When debug level has the DBG_CIL bit set, display CIL Debug messages. */ +#define DBG_CIL (0x2) +/** When debug level has the DBG_CILV bit set, display CIL Verbose debug + * messages */ +#define DBG_CILV (0x20) +/** When debug level has the DBG_PCD bit set, display PCD (Device) debug + * messages */ +#define DBG_PCD (0x4) +/** When debug level has the DBG_PCDV set, display PCD (Device) Verbose debug + * messages */ +#define DBG_PCDV (0x40) +/** When debug level has the DBG_HCD bit set, display Host debug messages */ +#define DBG_HCD (0x8) +/** When debug level has the DBG_HCDV bit set, display Verbose Host debug + * messages */ +#define DBG_HCDV (0x80) +/** When debug level has the DBG_HCD_URB bit set, display enqueued URBs in host + * mode. */ +#define DBG_HCD_URB (0x800) +/** When debug level has the DBG_HCDI bit set, display host interrupt + * messages. */ +#define DBG_HCDI (0x1000) + +/** When debug level has any bit set, display debug messages */ +#define DBG_ANY (0xFF) + +/** All debug messages off */ +#define DBG_OFF 0 + +/** Prefix string for DWC_DEBUG print macros. */ +#define USB_DWC "DWC_otg: " + +/** + * Print a debug message when the Global debug level variable contains + * the bit defined in lvl. + * + * @param[in] lvl - Debug level, use one of the DBG_ constants above. + * @param[in] x - like printf + * + * Example:

+ * + * DWC_DEBUGPL( DBG_ANY, "%s(%p)\n", __func__, _reg_base_addr); + * + *
+ * results in:
+ * + * usb-DWC_otg: dwc_otg_cil_init(ca867000) + * + */ +#ifdef DEBUG + +# define DWC_DEBUGPL(lvl, x...) do{ if ((lvl)&g_dbg_lvl)__DWC_DEBUG(USB_DWC x ); }while(0) +# define DWC_DEBUGP(x...) DWC_DEBUGPL(DBG_ANY, x ) + +# define CHK_DEBUG_LEVEL(level) ((level) & g_dbg_lvl) + +#else + +# define DWC_DEBUGPL(lvl, x...) do{}while(0) +# define DWC_DEBUGP(x...) + +# define CHK_DEBUG_LEVEL(level) (0) + +#endif /*DEBUG*/ +#endif diff --git a/drivers/usb/host/dwc_otg/dwc_otg_driver.c b/drivers/usb/host/dwc_otg/dwc_otg_driver.c new file mode 100644 index 0000000000000000000000000000000000000000..cb060a7179a3eec791506ed2779b553cad9841b0 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_driver.c @@ -0,0 +1,1757 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_driver.c $ + * $Revision: #92 $ + * $Date: 2012/08/10 $ + * $Change: 2047372 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +/** @file + * The dwc_otg_driver module provides the initialization and cleanup entry + * points for the DWC_otg driver. This module will be dynamically installed + * after Linux is booted using the insmod command. When the module is + * installed, the dwc_otg_driver_init function is called. When the module is + * removed (using rmmod), the dwc_otg_driver_cleanup function is called. + * + * This module also defines a data structure for the dwc_otg_driver, which is + * used in conjunction with the standard ARM lm_device structure. These + * structures allow the OTG driver to comply with the standard Linux driver + * model in which devices and drivers are registered with a bus driver. This + * has the benefit that Linux can expose attributes of the driver and device + * in its special sysfs file system. Users can then read or write files in + * this file system to perform diagnostics on the driver components or the + * device. + */ + +#include "dwc_otg_os_dep.h" +#include "dwc_os.h" +#include "dwc_otg_dbg.h" +#include "dwc_otg_driver.h" +#include "dwc_otg_attr.h" +#include "dwc_otg_core_if.h" +#include "dwc_otg_pcd_if.h" +#include "dwc_otg_hcd_if.h" +#include "dwc_otg_fiq_fsm.h" + +#define DWC_DRIVER_VERSION "3.00a 10-AUG-2012" +#define DWC_DRIVER_DESC "HS OTG USB Controller driver" + +bool microframe_schedule=true; + +static const char dwc_driver_name[] = "dwc_otg"; + + +extern int pcd_init( +#ifdef LM_INTERFACE + struct lm_device *_dev +#elif defined(PCI_INTERFACE) + struct pci_dev *_dev +#elif defined(PLATFORM_INTERFACE) + struct platform_device *dev +#endif + ); +extern int hcd_init( +#ifdef LM_INTERFACE + struct lm_device *_dev +#elif defined(PCI_INTERFACE) + struct pci_dev *_dev +#elif defined(PLATFORM_INTERFACE) + struct platform_device *dev +#endif + ); + +extern int pcd_remove( +#ifdef LM_INTERFACE + struct lm_device *_dev +#elif defined(PCI_INTERFACE) + struct pci_dev *_dev +#elif defined(PLATFORM_INTERFACE) + struct platform_device *_dev +#endif + ); + +extern void hcd_remove( +#ifdef LM_INTERFACE + struct lm_device *_dev +#elif defined(PCI_INTERFACE) + struct pci_dev *_dev +#elif defined(PLATFORM_INTERFACE) + struct platform_device *_dev +#endif + ); + +extern void dwc_otg_adp_start(dwc_otg_core_if_t * core_if, uint8_t is_host); + +/*-------------------------------------------------------------------------*/ +/* Encapsulate the module parameter settings */ + +struct dwc_otg_driver_module_params { + int32_t opt; + int32_t otg_cap; + int32_t dma_enable; + int32_t dma_desc_enable; + int32_t dma_burst_size; + int32_t speed; + int32_t host_support_fs_ls_low_power; + int32_t host_ls_low_power_phy_clk; + int32_t enable_dynamic_fifo; + int32_t data_fifo_size; + int32_t dev_rx_fifo_size; + int32_t dev_nperio_tx_fifo_size; + uint32_t dev_perio_tx_fifo_size[MAX_PERIO_FIFOS]; + int32_t host_rx_fifo_size; + int32_t host_nperio_tx_fifo_size; + int32_t host_perio_tx_fifo_size; + int32_t max_transfer_size; + int32_t max_packet_count; + int32_t host_channels; + int32_t dev_endpoints; + int32_t phy_type; + int32_t phy_utmi_width; + int32_t phy_ulpi_ddr; + int32_t phy_ulpi_ext_vbus; + int32_t i2c_enable; + int32_t ulpi_fs_ls; + int32_t ts_dline; + int32_t en_multiple_tx_fifo; + uint32_t dev_tx_fifo_size[MAX_TX_FIFOS]; + uint32_t thr_ctl; + uint32_t tx_thr_length; + uint32_t rx_thr_length; + int32_t pti_enable; + int32_t mpi_enable; + int32_t lpm_enable; + int32_t ic_usb_cap; + int32_t ahb_thr_ratio; + int32_t power_down; + int32_t reload_ctl; + int32_t dev_out_nak; + int32_t cont_on_bna; + int32_t ahb_single; + int32_t otg_ver; + int32_t adp_enable; +}; + +static struct dwc_otg_driver_module_params dwc_otg_module_params = { + .opt = -1, + .otg_cap = -1, + .dma_enable = -1, + .dma_desc_enable = -1, + .dma_burst_size = -1, + .speed = -1, + .host_support_fs_ls_low_power = -1, + .host_ls_low_power_phy_clk = -1, + .enable_dynamic_fifo = -1, + .data_fifo_size = -1, + .dev_rx_fifo_size = -1, + .dev_nperio_tx_fifo_size = -1, + .dev_perio_tx_fifo_size = { + /* dev_perio_tx_fifo_size_1 */ + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1 + /* 15 */ + }, + .host_rx_fifo_size = -1, + .host_nperio_tx_fifo_size = -1, + .host_perio_tx_fifo_size = -1, + .max_transfer_size = -1, + .max_packet_count = -1, + .host_channels = -1, + .dev_endpoints = -1, + .phy_type = -1, + .phy_utmi_width = -1, + .phy_ulpi_ddr = -1, + .phy_ulpi_ext_vbus = -1, + .i2c_enable = -1, + .ulpi_fs_ls = -1, + .ts_dline = -1, + .en_multiple_tx_fifo = -1, + .dev_tx_fifo_size = { + /* dev_tx_fifo_size */ + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1, + -1 + /* 15 */ + }, + .thr_ctl = -1, + .tx_thr_length = -1, + .rx_thr_length = -1, + .pti_enable = -1, + .mpi_enable = -1, + .lpm_enable = 0, + .ic_usb_cap = -1, + .ahb_thr_ratio = -1, + .power_down = -1, + .reload_ctl = -1, + .dev_out_nak = -1, + .cont_on_bna = -1, + .ahb_single = -1, + .otg_ver = -1, + .adp_enable = -1, +}; + +//Global variable to switch the fiq fix on or off +bool fiq_enable = 1; +// Global variable to enable the split transaction fix +bool fiq_fsm_enable = true; +//Bulk split-transaction NAK holdoff in microframes +uint16_t nak_holdoff = 8; + +unsigned short fiq_fsm_mask = 0x0F; + +/** + * This function shows the Driver Version. + */ +static ssize_t version_show(struct device_driver *dev, char *buf) +{ + return snprintf(buf, sizeof(DWC_DRIVER_VERSION) + 2, "%s\n", + DWC_DRIVER_VERSION); +} + +static DRIVER_ATTR(version, S_IRUGO, version_show, NULL); + +/** + * Global Debug Level Mask. + */ +uint32_t g_dbg_lvl = 0; /* OFF */ + +/** + * This function shows the driver Debug Level. + */ +static ssize_t dbg_level_show(struct device_driver *drv, char *buf) +{ + return sprintf(buf, "0x%0x\n", g_dbg_lvl); +} + +/** + * This function stores the driver Debug Level. + */ +static ssize_t dbg_level_store(struct device_driver *drv, const char *buf, + size_t count) +{ + g_dbg_lvl = simple_strtoul(buf, NULL, 16); + return count; +} + +static DRIVER_ATTR(debuglevel, S_IRUGO | S_IWUSR, dbg_level_show, + dbg_level_store); + +/** + * This function is called during module intialization + * to pass module parameters to the DWC_OTG CORE. + */ +static int set_parameters(dwc_otg_core_if_t * core_if) +{ + int retval = 0; + int i; + + if (dwc_otg_module_params.otg_cap != -1) { + retval += + dwc_otg_set_param_otg_cap(core_if, + dwc_otg_module_params.otg_cap); + } + if (dwc_otg_module_params.dma_enable != -1) { + retval += + dwc_otg_set_param_dma_enable(core_if, + dwc_otg_module_params. + dma_enable); + } + if (dwc_otg_module_params.dma_desc_enable != -1) { + retval += + dwc_otg_set_param_dma_desc_enable(core_if, + dwc_otg_module_params. + dma_desc_enable); + } + if (dwc_otg_module_params.opt != -1) { + retval += + dwc_otg_set_param_opt(core_if, dwc_otg_module_params.opt); + } + if (dwc_otg_module_params.dma_burst_size != -1) { + retval += + dwc_otg_set_param_dma_burst_size(core_if, + dwc_otg_module_params. + dma_burst_size); + } + if (dwc_otg_module_params.host_support_fs_ls_low_power != -1) { + retval += + dwc_otg_set_param_host_support_fs_ls_low_power(core_if, + dwc_otg_module_params. + host_support_fs_ls_low_power); + } + if (dwc_otg_module_params.enable_dynamic_fifo != -1) { + retval += + dwc_otg_set_param_enable_dynamic_fifo(core_if, + dwc_otg_module_params. + enable_dynamic_fifo); + } + if (dwc_otg_module_params.data_fifo_size != -1) { + retval += + dwc_otg_set_param_data_fifo_size(core_if, + dwc_otg_module_params. + data_fifo_size); + } + if (dwc_otg_module_params.dev_rx_fifo_size != -1) { + retval += + dwc_otg_set_param_dev_rx_fifo_size(core_if, + dwc_otg_module_params. + dev_rx_fifo_size); + } + if (dwc_otg_module_params.dev_nperio_tx_fifo_size != -1) { + retval += + dwc_otg_set_param_dev_nperio_tx_fifo_size(core_if, + dwc_otg_module_params. + dev_nperio_tx_fifo_size); + } + if (dwc_otg_module_params.host_rx_fifo_size != -1) { + retval += + dwc_otg_set_param_host_rx_fifo_size(core_if, + dwc_otg_module_params.host_rx_fifo_size); + } + if (dwc_otg_module_params.host_nperio_tx_fifo_size != -1) { + retval += + dwc_otg_set_param_host_nperio_tx_fifo_size(core_if, + dwc_otg_module_params. + host_nperio_tx_fifo_size); + } + if (dwc_otg_module_params.host_perio_tx_fifo_size != -1) { + retval += + dwc_otg_set_param_host_perio_tx_fifo_size(core_if, + dwc_otg_module_params. + host_perio_tx_fifo_size); + } + if (dwc_otg_module_params.max_transfer_size != -1) { + retval += + dwc_otg_set_param_max_transfer_size(core_if, + dwc_otg_module_params. + max_transfer_size); + } + if (dwc_otg_module_params.max_packet_count != -1) { + retval += + dwc_otg_set_param_max_packet_count(core_if, + dwc_otg_module_params. + max_packet_count); + } + if (dwc_otg_module_params.host_channels != -1) { + retval += + dwc_otg_set_param_host_channels(core_if, + dwc_otg_module_params. + host_channels); + } + if (dwc_otg_module_params.dev_endpoints != -1) { + retval += + dwc_otg_set_param_dev_endpoints(core_if, + dwc_otg_module_params. + dev_endpoints); + } + if (dwc_otg_module_params.phy_type != -1) { + retval += + dwc_otg_set_param_phy_type(core_if, + dwc_otg_module_params.phy_type); + } + if (dwc_otg_module_params.speed != -1) { + retval += + dwc_otg_set_param_speed(core_if, + dwc_otg_module_params.speed); + } + if (dwc_otg_module_params.host_ls_low_power_phy_clk != -1) { + retval += + dwc_otg_set_param_host_ls_low_power_phy_clk(core_if, + dwc_otg_module_params. + host_ls_low_power_phy_clk); + } + if (dwc_otg_module_params.phy_ulpi_ddr != -1) { + retval += + dwc_otg_set_param_phy_ulpi_ddr(core_if, + dwc_otg_module_params. + phy_ulpi_ddr); + } + if (dwc_otg_module_params.phy_ulpi_ext_vbus != -1) { + retval += + dwc_otg_set_param_phy_ulpi_ext_vbus(core_if, + dwc_otg_module_params. + phy_ulpi_ext_vbus); + } + if (dwc_otg_module_params.phy_utmi_width != -1) { + retval += + dwc_otg_set_param_phy_utmi_width(core_if, + dwc_otg_module_params. + phy_utmi_width); + } + if (dwc_otg_module_params.ulpi_fs_ls != -1) { + retval += + dwc_otg_set_param_ulpi_fs_ls(core_if, + dwc_otg_module_params.ulpi_fs_ls); + } + if (dwc_otg_module_params.ts_dline != -1) { + retval += + dwc_otg_set_param_ts_dline(core_if, + dwc_otg_module_params.ts_dline); + } + if (dwc_otg_module_params.i2c_enable != -1) { + retval += + dwc_otg_set_param_i2c_enable(core_if, + dwc_otg_module_params. + i2c_enable); + } + if (dwc_otg_module_params.en_multiple_tx_fifo != -1) { + retval += + dwc_otg_set_param_en_multiple_tx_fifo(core_if, + dwc_otg_module_params. + en_multiple_tx_fifo); + } + for (i = 0; i < 15; i++) { + if (dwc_otg_module_params.dev_perio_tx_fifo_size[i] != -1) { + retval += + dwc_otg_set_param_dev_perio_tx_fifo_size(core_if, + dwc_otg_module_params. + dev_perio_tx_fifo_size + [i], i); + } + } + + for (i = 0; i < 15; i++) { + if (dwc_otg_module_params.dev_tx_fifo_size[i] != -1) { + retval += dwc_otg_set_param_dev_tx_fifo_size(core_if, + dwc_otg_module_params. + dev_tx_fifo_size + [i], i); + } + } + if (dwc_otg_module_params.thr_ctl != -1) { + retval += + dwc_otg_set_param_thr_ctl(core_if, + dwc_otg_module_params.thr_ctl); + } + if (dwc_otg_module_params.mpi_enable != -1) { + retval += + dwc_otg_set_param_mpi_enable(core_if, + dwc_otg_module_params. + mpi_enable); + } + if (dwc_otg_module_params.pti_enable != -1) { + retval += + dwc_otg_set_param_pti_enable(core_if, + dwc_otg_module_params. + pti_enable); + } + if (dwc_otg_module_params.lpm_enable != -1) { + retval += + dwc_otg_set_param_lpm_enable(core_if, + dwc_otg_module_params. + lpm_enable); + } + if (dwc_otg_module_params.ic_usb_cap != -1) { + retval += + dwc_otg_set_param_ic_usb_cap(core_if, + dwc_otg_module_params. + ic_usb_cap); + } + if (dwc_otg_module_params.tx_thr_length != -1) { + retval += + dwc_otg_set_param_tx_thr_length(core_if, + dwc_otg_module_params.tx_thr_length); + } + if (dwc_otg_module_params.rx_thr_length != -1) { + retval += + dwc_otg_set_param_rx_thr_length(core_if, + dwc_otg_module_params. + rx_thr_length); + } + if (dwc_otg_module_params.ahb_thr_ratio != -1) { + retval += + dwc_otg_set_param_ahb_thr_ratio(core_if, + dwc_otg_module_params.ahb_thr_ratio); + } + if (dwc_otg_module_params.power_down != -1) { + retval += + dwc_otg_set_param_power_down(core_if, + dwc_otg_module_params.power_down); + } + if (dwc_otg_module_params.reload_ctl != -1) { + retval += + dwc_otg_set_param_reload_ctl(core_if, + dwc_otg_module_params.reload_ctl); + } + + if (dwc_otg_module_params.dev_out_nak != -1) { + retval += + dwc_otg_set_param_dev_out_nak(core_if, + dwc_otg_module_params.dev_out_nak); + } + + if (dwc_otg_module_params.cont_on_bna != -1) { + retval += + dwc_otg_set_param_cont_on_bna(core_if, + dwc_otg_module_params.cont_on_bna); + } + + if (dwc_otg_module_params.ahb_single != -1) { + retval += + dwc_otg_set_param_ahb_single(core_if, + dwc_otg_module_params.ahb_single); + } + + if (dwc_otg_module_params.otg_ver != -1) { + retval += + dwc_otg_set_param_otg_ver(core_if, + dwc_otg_module_params.otg_ver); + } + if (dwc_otg_module_params.adp_enable != -1) { + retval += + dwc_otg_set_param_adp_enable(core_if, + dwc_otg_module_params. + adp_enable); + } + return retval; +} + +/** + * This function is the top level interrupt handler for the Common + * (Device and host modes) interrupts. + */ +static irqreturn_t dwc_otg_common_irq(int irq, void *dev) +{ + int32_t retval = IRQ_NONE; + + retval = dwc_otg_handle_common_intr(dev); + if (retval != 0) { + S3C2410X_CLEAR_EINTPEND(); + } + return IRQ_RETVAL(retval); +} + +/** + * This function is called when a lm_device is unregistered with the + * dwc_otg_driver. This happens, for example, when the rmmod command is + * executed. The device may or may not be electrically present. If it is + * present, the driver stops device processing. Any resources used on behalf + * of this device are freed. + * + * @param _dev + */ +#ifdef LM_INTERFACE +#define REM_RETVAL(n) +static void dwc_otg_driver_remove( struct lm_device *_dev ) +{ dwc_otg_device_t *otg_dev = lm_get_drvdata(_dev); +#elif defined(PCI_INTERFACE) +#define REM_RETVAL(n) +static void dwc_otg_driver_remove( struct pci_dev *_dev ) +{ dwc_otg_device_t *otg_dev = pci_get_drvdata(_dev); +#elif defined(PLATFORM_INTERFACE) +#define REM_RETVAL(n) n +static int dwc_otg_driver_remove( struct platform_device *_dev ) +{ dwc_otg_device_t *otg_dev = platform_get_drvdata(_dev); +#endif + + DWC_DEBUGPL(DBG_ANY, "%s(%p) otg_dev %p\n", __func__, _dev, otg_dev); + + if (!otg_dev) { + /* Memory allocation for the dwc_otg_device failed. */ + DWC_DEBUGPL(DBG_ANY, "%s: otg_dev NULL!\n", __func__); + return REM_RETVAL(-ENOMEM); + } +#ifndef DWC_DEVICE_ONLY + if (otg_dev->hcd) { + hcd_remove(_dev); + } else { + DWC_DEBUGPL(DBG_ANY, "%s: otg_dev->hcd NULL!\n", __func__); + return REM_RETVAL(-EINVAL); + } +#endif + +#ifndef DWC_HOST_ONLY + if (otg_dev->pcd) { + pcd_remove(_dev); + } else { + DWC_DEBUGPL(DBG_ANY, "%s: otg_dev->pcd NULL!\n", __func__); + return REM_RETVAL(-EINVAL); + } +#endif + /* + * Free the IRQ + */ + if (otg_dev->common_irq_installed) { +#ifdef PLATFORM_INTERFACE + free_irq(platform_get_irq(_dev, 0), otg_dev); +#else + free_irq(_dev->irq, otg_dev); +#endif + } else { + DWC_DEBUGPL(DBG_ANY, "%s: There is no installed irq!\n", __func__); + return REM_RETVAL(-ENXIO); + } + + if (otg_dev->core_if) { + dwc_otg_cil_remove(otg_dev->core_if); + } else { + DWC_DEBUGPL(DBG_ANY, "%s: otg_dev->core_if NULL!\n", __func__); + return REM_RETVAL(-ENXIO); + } + + /* + * Remove the device attributes + */ + dwc_otg_attr_remove(_dev); + + /* + * Return the memory. + */ + if (otg_dev->os_dep.base) { + iounmap(otg_dev->os_dep.base); + } + DWC_FREE(otg_dev); + + /* + * Clear the drvdata pointer. + */ +#ifdef LM_INTERFACE + lm_set_drvdata(_dev, 0); +#elif defined(PCI_INTERFACE) + release_mem_region(otg_dev->os_dep.rsrc_start, + otg_dev->os_dep.rsrc_len); + pci_set_drvdata(_dev, 0); +#elif defined(PLATFORM_INTERFACE) + platform_set_drvdata(_dev, 0); +#endif + return REM_RETVAL(0); +} + +/** + * This function is called when an lm_device is bound to a + * dwc_otg_driver. It creates the driver components required to + * control the device (CIL, HCD, and PCD) and it initializes the + * device. The driver components are stored in a dwc_otg_device + * structure. A reference to the dwc_otg_device is saved in the + * lm_device. This allows the driver to access the dwc_otg_device + * structure on subsequent calls to driver methods for this device. + * + * @param _dev Bus device + */ +static int dwc_otg_driver_probe( +#ifdef LM_INTERFACE + struct lm_device *_dev +#elif defined(PCI_INTERFACE) + struct pci_dev *_dev, + const struct pci_device_id *id +#elif defined(PLATFORM_INTERFACE) + struct platform_device *_dev +#endif + ) +{ + int retval = 0; + dwc_otg_device_t *dwc_otg_device; + int devirq; + + dev_dbg(&_dev->dev, "dwc_otg_driver_probe(%p)\n", _dev); +#ifdef LM_INTERFACE + dev_dbg(&_dev->dev, "start=0x%08x\n", (unsigned)_dev->resource.start); +#elif defined(PCI_INTERFACE) + if (!id) { + DWC_ERROR("Invalid pci_device_id %p", id); + return -EINVAL; + } + + if (!_dev || (pci_enable_device(_dev) < 0)) { + DWC_ERROR("Invalid pci_device %p", _dev); + return -ENODEV; + } + dev_dbg(&_dev->dev, "start=0x%08x\n", (unsigned)pci_resource_start(_dev,0)); + /* other stuff needed as well? */ + +#elif defined(PLATFORM_INTERFACE) + dev_dbg(&_dev->dev, "start=0x%08x (len 0x%x)\n", + (unsigned)_dev->resource->start, + (unsigned)(_dev->resource->end - _dev->resource->start)); +#endif + + dwc_otg_device = DWC_ALLOC(sizeof(dwc_otg_device_t)); + + if (!dwc_otg_device) { + dev_err(&_dev->dev, "kmalloc of dwc_otg_device failed\n"); + return -ENOMEM; + } + + memset(dwc_otg_device, 0, sizeof(*dwc_otg_device)); + dwc_otg_device->os_dep.reg_offset = 0xFFFFFFFF; + dwc_otg_device->os_dep.platformdev = _dev; + + /* + * Map the DWC_otg Core memory into virtual address space. + */ +#ifdef LM_INTERFACE + dwc_otg_device->os_dep.base = ioremap(_dev->resource.start, SZ_256K); + + if (!dwc_otg_device->os_dep.base) { + dev_err(&_dev->dev, "ioremap() failed\n"); + DWC_FREE(dwc_otg_device); + return -ENOMEM; + } + dev_dbg(&_dev->dev, "base=0x%08x\n", + (unsigned)dwc_otg_device->os_dep.base); +#elif defined(PCI_INTERFACE) + _dev->current_state = PCI_D0; + _dev->dev.power.power_state = PMSG_ON; + + if (!_dev->irq) { + DWC_ERROR("Found HC with no IRQ. Check BIOS/PCI %s setup!", + pci_name(_dev)); + iounmap(dwc_otg_device->os_dep.base); + DWC_FREE(dwc_otg_device); + return -ENODEV; + } + + dwc_otg_device->os_dep.rsrc_start = pci_resource_start(_dev, 0); + dwc_otg_device->os_dep.rsrc_len = pci_resource_len(_dev, 0); + DWC_DEBUGPL(DBG_ANY, "PCI resource: start=%08x, len=%08x\n", + (unsigned)dwc_otg_device->os_dep.rsrc_start, + (unsigned)dwc_otg_device->os_dep.rsrc_len); + if (!request_mem_region + (dwc_otg_device->os_dep.rsrc_start, dwc_otg_device->os_dep.rsrc_len, + "dwc_otg")) { + dev_dbg(&_dev->dev, "error requesting memory\n"); + iounmap(dwc_otg_device->os_dep.base); + DWC_FREE(dwc_otg_device); + return -EFAULT; + } + + dwc_otg_device->os_dep.base = + ioremap_nocache(dwc_otg_device->os_dep.rsrc_start, + dwc_otg_device->os_dep.rsrc_len); + if (dwc_otg_device->os_dep.base == NULL) { + dev_dbg(&_dev->dev, "error mapping memory\n"); + release_mem_region(dwc_otg_device->os_dep.rsrc_start, + dwc_otg_device->os_dep.rsrc_len); + iounmap(dwc_otg_device->os_dep.base); + DWC_FREE(dwc_otg_device); + return -EFAULT; + } + dev_dbg(&_dev->dev, "base=0x%p (before adjust) \n", + dwc_otg_device->os_dep.base); + dwc_otg_device->os_dep.base = (char *)dwc_otg_device->os_dep.base; + dev_dbg(&_dev->dev, "base=0x%p (after adjust) \n", + dwc_otg_device->os_dep.base); + dev_dbg(&_dev->dev, "%s: mapped PA 0x%x to VA 0x%p\n", __func__, + (unsigned)dwc_otg_device->os_dep.rsrc_start, + dwc_otg_device->os_dep.base); + + pci_set_master(_dev); + pci_set_drvdata(_dev, dwc_otg_device); +#elif defined(PLATFORM_INTERFACE) + DWC_DEBUGPL(DBG_ANY,"Platform resource: start=%08x, len=%08x\n", + _dev->resource->start, + _dev->resource->end - _dev->resource->start + 1); +#if 1 + if (!request_mem_region(_dev->resource[0].start, + _dev->resource[0].end - _dev->resource[0].start + 1, + "dwc_otg")) { + dev_dbg(&_dev->dev, "error reserving mapped memory\n"); + retval = -EFAULT; + goto fail; + } + + dwc_otg_device->os_dep.base = ioremap_nocache(_dev->resource[0].start, + _dev->resource[0].end - + _dev->resource[0].start+1); + if (fiq_enable) + { + if (!request_mem_region(_dev->resource[1].start, + _dev->resource[1].end - _dev->resource[1].start + 1, + "dwc_otg")) { + dev_dbg(&_dev->dev, "error reserving mapped memory\n"); + retval = -EFAULT; + goto fail; + } + + dwc_otg_device->os_dep.mphi_base = ioremap_nocache(_dev->resource[1].start, + _dev->resource[1].end - + _dev->resource[1].start + 1); + } + +#else + { + struct map_desc desc = { + .virtual = IO_ADDRESS((unsigned)_dev->resource->start), + .pfn = __phys_to_pfn((unsigned)_dev->resource->start), + .length = SZ_128K, + .type = MT_DEVICE + }; + iotable_init(&desc, 1); + dwc_otg_device->os_dep.base = (void *)desc.virtual; + } +#endif + if (!dwc_otg_device->os_dep.base) { + dev_err(&_dev->dev, "ioremap() failed\n"); + retval = -ENOMEM; + goto fail; + } + dev_dbg(&_dev->dev, "base=0x%08x\n", + (unsigned)dwc_otg_device->os_dep.base); +#endif + + /* + * Initialize driver data to point to the global DWC_otg + * Device structure. + */ +#ifdef LM_INTERFACE + lm_set_drvdata(_dev, dwc_otg_device); +#elif defined(PLATFORM_INTERFACE) + platform_set_drvdata(_dev, dwc_otg_device); +#endif + dev_dbg(&_dev->dev, "dwc_otg_device=0x%p\n", dwc_otg_device); + + dwc_otg_device->core_if = dwc_otg_cil_init(dwc_otg_device->os_dep.base); + DWC_DEBUGPL(DBG_HCDV, "probe of device %p given core_if %p\n", + dwc_otg_device, dwc_otg_device->core_if);//GRAYG + + if (!dwc_otg_device->core_if) { + dev_err(&_dev->dev, "CIL initialization failed!\n"); + retval = -ENOMEM; + goto fail; + } + + dev_dbg(&_dev->dev, "Calling get_gsnpsid\n"); + /* + * Attempt to ensure this device is really a DWC_otg Controller. + * Read and verify the SNPSID register contents. The value should be + * 0x45F42XXX or 0x45F42XXX, which corresponds to either "OT2" or "OTG3", + * as in "OTG version 2.XX" or "OTG version 3.XX". + */ + + if (((dwc_otg_get_gsnpsid(dwc_otg_device->core_if) & 0xFFFFF000) != 0x4F542000) && + ((dwc_otg_get_gsnpsid(dwc_otg_device->core_if) & 0xFFFFF000) != 0x4F543000)) { + dev_err(&_dev->dev, "Bad value for SNPSID: 0x%08x\n", + dwc_otg_get_gsnpsid(dwc_otg_device->core_if)); + retval = -EINVAL; + goto fail; + } + + /* + * Validate parameter values. + */ + dev_dbg(&_dev->dev, "Calling set_parameters\n"); + if (set_parameters(dwc_otg_device->core_if)) { + retval = -EINVAL; + goto fail; + } + + /* + * Create Device Attributes in sysfs + */ + dev_dbg(&_dev->dev, "Calling attr_create\n"); + dwc_otg_attr_create(_dev); + + /* + * Disable the global interrupt until all the interrupt + * handlers are installed. + */ + dev_dbg(&_dev->dev, "Calling disable_global_interrupts\n"); + dwc_otg_disable_global_interrupts(dwc_otg_device->core_if); + + /* + * Install the interrupt handler for the common interrupts before + * enabling common interrupts in core_init below. + */ + +#if defined(PLATFORM_INTERFACE) + devirq = platform_get_irq(_dev, fiq_enable ? 0 : 1); +#else + devirq = _dev->irq; +#endif + DWC_DEBUGPL(DBG_CIL, "registering (common) handler for irq%d\n", + devirq); + dev_dbg(&_dev->dev, "Calling request_irq(%d)\n", devirq); + retval = request_irq(devirq, dwc_otg_common_irq, + IRQF_SHARED, + "dwc_otg", dwc_otg_device); + if (retval) { + DWC_ERROR("request of irq%d failed\n", devirq); + retval = -EBUSY; + goto fail; + } else { + dwc_otg_device->common_irq_installed = 1; + } + +#ifndef IRQF_TRIGGER_LOW +#if defined(LM_INTERFACE) || defined(PLATFORM_INTERFACE) + dev_dbg(&_dev->dev, "Calling set_irq_type\n"); + set_irq_type(devirq, +#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30)) + IRQT_LOW +#else + IRQ_TYPE_LEVEL_LOW +#endif + ); +#endif +#endif /*IRQF_TRIGGER_LOW*/ + + /* + * Initialize the DWC_otg core. + */ + dev_dbg(&_dev->dev, "Calling dwc_otg_core_init\n"); + dwc_otg_core_init(dwc_otg_device->core_if); + +#ifndef DWC_HOST_ONLY + /* + * Initialize the PCD + */ + dev_dbg(&_dev->dev, "Calling pcd_init\n"); + retval = pcd_init(_dev); + if (retval != 0) { + DWC_ERROR("pcd_init failed\n"); + dwc_otg_device->pcd = NULL; + goto fail; + } +#endif +#ifndef DWC_DEVICE_ONLY + /* + * Initialize the HCD + */ + dev_dbg(&_dev->dev, "Calling hcd_init\n"); + retval = hcd_init(_dev); + if (retval != 0) { + DWC_ERROR("hcd_init failed\n"); + dwc_otg_device->hcd = NULL; + goto fail; + } +#endif + /* Recover from drvdata having been overwritten by hcd_init() */ +#ifdef LM_INTERFACE + lm_set_drvdata(_dev, dwc_otg_device); +#elif defined(PLATFORM_INTERFACE) + platform_set_drvdata(_dev, dwc_otg_device); +#elif defined(PCI_INTERFACE) + pci_set_drvdata(_dev, dwc_otg_device); + dwc_otg_device->os_dep.pcidev = _dev; +#endif + + /* + * Enable the global interrupt after all the interrupt + * handlers are installed if there is no ADP support else + * perform initial actions required for Internal ADP logic. + */ + if (!dwc_otg_get_param_adp_enable(dwc_otg_device->core_if)) { + dev_dbg(&_dev->dev, "Calling enable_global_interrupts\n"); + dwc_otg_enable_global_interrupts(dwc_otg_device->core_if); + dev_dbg(&_dev->dev, "Done\n"); + } else + dwc_otg_adp_start(dwc_otg_device->core_if, + dwc_otg_is_host_mode(dwc_otg_device->core_if)); + + return 0; + +fail: + dwc_otg_driver_remove(_dev); + return retval; +} + +/** + * This structure defines the methods to be called by a bus driver + * during the lifecycle of a device on that bus. Both drivers and + * devices are registered with a bus driver. The bus driver matches + * devices to drivers based on information in the device and driver + * structures. + * + * The probe function is called when the bus driver matches a device + * to this driver. The remove function is called when a device is + * unregistered with the bus driver. + */ +#ifdef LM_INTERFACE +static struct lm_driver dwc_otg_driver = { + .drv = {.name = (char *)dwc_driver_name,}, + .probe = dwc_otg_driver_probe, + .remove = dwc_otg_driver_remove, + // 'suspend' and 'resume' absent +}; +#elif defined(PCI_INTERFACE) +static const struct pci_device_id pci_ids[] = { { + PCI_DEVICE(0x16c3, 0xabcd), + .driver_data = + (unsigned long)0xdeadbeef, + }, { /* end: all zeroes */ } +}; + +MODULE_DEVICE_TABLE(pci, pci_ids); + +/* pci driver glue; this is a "new style" PCI driver module */ +static struct pci_driver dwc_otg_driver = { + .name = "dwc_otg", + .id_table = pci_ids, + + .probe = dwc_otg_driver_probe, + .remove = dwc_otg_driver_remove, + + .driver = { + .name = (char *)dwc_driver_name, + }, +}; +#elif defined(PLATFORM_INTERFACE) +static struct platform_device_id platform_ids[] = { + { + .name = "bcm2708_usb", + .driver_data = (kernel_ulong_t) 0xdeadbeef, + }, + { /* end: all zeroes */ } +}; +MODULE_DEVICE_TABLE(platform, platform_ids); + +static const struct of_device_id dwc_otg_of_match_table[] = { + { .compatible = "brcm,bcm2708-usb", }, + {}, +}; +MODULE_DEVICE_TABLE(of, dwc_otg_of_match_table); + +static struct platform_driver dwc_otg_driver = { + .driver = { + .name = (char *)dwc_driver_name, + .of_match_table = dwc_otg_of_match_table, + }, + .id_table = platform_ids, + + .probe = dwc_otg_driver_probe, + .remove = dwc_otg_driver_remove, + // no 'shutdown', 'suspend', 'resume', 'suspend_late' or 'resume_early' +}; +#endif + +/** + * This function is called when the dwc_otg_driver is installed with the + * insmod command. It registers the dwc_otg_driver structure with the + * appropriate bus driver. This will cause the dwc_otg_driver_probe function + * to be called. In addition, the bus driver will automatically expose + * attributes defined for the device and driver in the special sysfs file + * system. + * + * @return + */ +static int __init dwc_otg_driver_init(void) +{ + int retval = 0; + int error; + struct device_driver *drv; + + if(fiq_fsm_enable && !fiq_enable) { + printk(KERN_WARNING "dwc_otg: fiq_fsm_enable was set without fiq_enable! Correcting.\n"); + fiq_enable = 1; + } + + printk(KERN_INFO "%s: version %s (%s bus)\n", dwc_driver_name, + DWC_DRIVER_VERSION, +#ifdef LM_INTERFACE + "logicmodule"); + retval = lm_driver_register(&dwc_otg_driver); + drv = &dwc_otg_driver.drv; +#elif defined(PCI_INTERFACE) + "pci"); + retval = pci_register_driver(&dwc_otg_driver); + drv = &dwc_otg_driver.driver; +#elif defined(PLATFORM_INTERFACE) + "platform"); + retval = platform_driver_register(&dwc_otg_driver); + drv = &dwc_otg_driver.driver; +#endif + if (retval < 0) { + printk(KERN_ERR "%s retval=%d\n", __func__, retval); + return retval; + } + printk(KERN_DEBUG "dwc_otg: FIQ %s\n", fiq_enable ? "enabled":"disabled"); + printk(KERN_DEBUG "dwc_otg: NAK holdoff %s\n", nak_holdoff ? "enabled":"disabled"); + printk(KERN_DEBUG "dwc_otg: FIQ split-transaction FSM %s\n", fiq_fsm_enable ? "enabled":"disabled"); + + error = driver_create_file(drv, &driver_attr_version); +#ifdef DEBUG + error = driver_create_file(drv, &driver_attr_debuglevel); +#endif + return retval; +} + +module_init(dwc_otg_driver_init); + +/** + * This function is called when the driver is removed from the kernel + * with the rmmod command. The driver unregisters itself with its bus + * driver. + * + */ +static void __exit dwc_otg_driver_cleanup(void) +{ + printk(KERN_DEBUG "dwc_otg_driver_cleanup()\n"); + +#ifdef LM_INTERFACE + driver_remove_file(&dwc_otg_driver.drv, &driver_attr_debuglevel); + driver_remove_file(&dwc_otg_driver.drv, &driver_attr_version); + lm_driver_unregister(&dwc_otg_driver); +#elif defined(PCI_INTERFACE) + driver_remove_file(&dwc_otg_driver.driver, &driver_attr_debuglevel); + driver_remove_file(&dwc_otg_driver.driver, &driver_attr_version); + pci_unregister_driver(&dwc_otg_driver); +#elif defined(PLATFORM_INTERFACE) + driver_remove_file(&dwc_otg_driver.driver, &driver_attr_debuglevel); + driver_remove_file(&dwc_otg_driver.driver, &driver_attr_version); + platform_driver_unregister(&dwc_otg_driver); +#endif + + printk(KERN_INFO "%s module removed\n", dwc_driver_name); +} + +module_exit(dwc_otg_driver_cleanup); + +MODULE_DESCRIPTION(DWC_DRIVER_DESC); +MODULE_AUTHOR("Synopsys Inc."); +MODULE_LICENSE("GPL"); + +module_param_named(otg_cap, dwc_otg_module_params.otg_cap, int, 0444); +MODULE_PARM_DESC(otg_cap, "OTG Capabilities 0=HNP&SRP 1=SRP Only 2=None"); +module_param_named(opt, dwc_otg_module_params.opt, int, 0444); +MODULE_PARM_DESC(opt, "OPT Mode"); +module_param_named(dma_enable, dwc_otg_module_params.dma_enable, int, 0444); +MODULE_PARM_DESC(dma_enable, "DMA Mode 0=Slave 1=DMA enabled"); + +module_param_named(dma_desc_enable, dwc_otg_module_params.dma_desc_enable, int, + 0444); +MODULE_PARM_DESC(dma_desc_enable, + "DMA Desc Mode 0=Address DMA 1=DMA Descriptor enabled"); + +module_param_named(dma_burst_size, dwc_otg_module_params.dma_burst_size, int, + 0444); +MODULE_PARM_DESC(dma_burst_size, + "DMA Burst Size 1, 4, 8, 16, 32, 64, 128, 256"); +module_param_named(speed, dwc_otg_module_params.speed, int, 0444); +MODULE_PARM_DESC(speed, "Speed 0=High Speed 1=Full Speed"); +module_param_named(host_support_fs_ls_low_power, + dwc_otg_module_params.host_support_fs_ls_low_power, int, + 0444); +MODULE_PARM_DESC(host_support_fs_ls_low_power, + "Support Low Power w/FS or LS 0=Support 1=Don't Support"); +module_param_named(host_ls_low_power_phy_clk, + dwc_otg_module_params.host_ls_low_power_phy_clk, int, 0444); +MODULE_PARM_DESC(host_ls_low_power_phy_clk, + "Low Speed Low Power Clock 0=48Mhz 1=6Mhz"); +module_param_named(enable_dynamic_fifo, + dwc_otg_module_params.enable_dynamic_fifo, int, 0444); +MODULE_PARM_DESC(enable_dynamic_fifo, "0=cC Setting 1=Allow Dynamic Sizing"); +module_param_named(data_fifo_size, dwc_otg_module_params.data_fifo_size, int, + 0444); +MODULE_PARM_DESC(data_fifo_size, + "Total number of words in the data FIFO memory 32-32768"); +module_param_named(dev_rx_fifo_size, dwc_otg_module_params.dev_rx_fifo_size, + int, 0444); +MODULE_PARM_DESC(dev_rx_fifo_size, "Number of words in the Rx FIFO 16-32768"); +module_param_named(dev_nperio_tx_fifo_size, + dwc_otg_module_params.dev_nperio_tx_fifo_size, int, 0444); +MODULE_PARM_DESC(dev_nperio_tx_fifo_size, + "Number of words in the non-periodic Tx FIFO 16-32768"); +module_param_named(dev_perio_tx_fifo_size_1, + dwc_otg_module_params.dev_perio_tx_fifo_size[0], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_1, + "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_2, + dwc_otg_module_params.dev_perio_tx_fifo_size[1], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_2, + "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_3, + dwc_otg_module_params.dev_perio_tx_fifo_size[2], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_3, + "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_4, + dwc_otg_module_params.dev_perio_tx_fifo_size[3], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_4, + "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_5, + dwc_otg_module_params.dev_perio_tx_fifo_size[4], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_5, + "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_6, + dwc_otg_module_params.dev_perio_tx_fifo_size[5], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_6, + "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_7, + dwc_otg_module_params.dev_perio_tx_fifo_size[6], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_7, + "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_8, + dwc_otg_module_params.dev_perio_tx_fifo_size[7], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_8, + "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_9, + dwc_otg_module_params.dev_perio_tx_fifo_size[8], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_9, + "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_10, + dwc_otg_module_params.dev_perio_tx_fifo_size[9], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_10, + "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_11, + dwc_otg_module_params.dev_perio_tx_fifo_size[10], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_11, + "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_12, + dwc_otg_module_params.dev_perio_tx_fifo_size[11], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_12, + "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_13, + dwc_otg_module_params.dev_perio_tx_fifo_size[12], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_13, + "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_14, + dwc_otg_module_params.dev_perio_tx_fifo_size[13], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_14, + "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(dev_perio_tx_fifo_size_15, + dwc_otg_module_params.dev_perio_tx_fifo_size[14], int, 0444); +MODULE_PARM_DESC(dev_perio_tx_fifo_size_15, + "Number of words in the periodic Tx FIFO 4-768"); +module_param_named(host_rx_fifo_size, dwc_otg_module_params.host_rx_fifo_size, + int, 0444); +MODULE_PARM_DESC(host_rx_fifo_size, "Number of words in the Rx FIFO 16-32768"); +module_param_named(host_nperio_tx_fifo_size, + dwc_otg_module_params.host_nperio_tx_fifo_size, int, 0444); +MODULE_PARM_DESC(host_nperio_tx_fifo_size, + "Number of words in the non-periodic Tx FIFO 16-32768"); +module_param_named(host_perio_tx_fifo_size, + dwc_otg_module_params.host_perio_tx_fifo_size, int, 0444); +MODULE_PARM_DESC(host_perio_tx_fifo_size, + "Number of words in the host periodic Tx FIFO 16-32768"); +module_param_named(max_transfer_size, dwc_otg_module_params.max_transfer_size, + int, 0444); +/** @todo Set the max to 512K, modify checks */ +MODULE_PARM_DESC(max_transfer_size, + "The maximum transfer size supported in bytes 2047-65535"); +module_param_named(max_packet_count, dwc_otg_module_params.max_packet_count, + int, 0444); +MODULE_PARM_DESC(max_packet_count, + "The maximum number of packets in a transfer 15-511"); +module_param_named(host_channels, dwc_otg_module_params.host_channels, int, + 0444); +MODULE_PARM_DESC(host_channels, + "The number of host channel registers to use 1-16"); +module_param_named(dev_endpoints, dwc_otg_module_params.dev_endpoints, int, + 0444); +MODULE_PARM_DESC(dev_endpoints, + "The number of endpoints in addition to EP0 available for device mode 1-15"); +module_param_named(phy_type, dwc_otg_module_params.phy_type, int, 0444); +MODULE_PARM_DESC(phy_type, "0=Reserved 1=UTMI+ 2=ULPI"); +module_param_named(phy_utmi_width, dwc_otg_module_params.phy_utmi_width, int, + 0444); +MODULE_PARM_DESC(phy_utmi_width, "Specifies the UTMI+ Data Width 8 or 16 bits"); +module_param_named(phy_ulpi_ddr, dwc_otg_module_params.phy_ulpi_ddr, int, 0444); +MODULE_PARM_DESC(phy_ulpi_ddr, + "ULPI at double or single data rate 0=Single 1=Double"); +module_param_named(phy_ulpi_ext_vbus, dwc_otg_module_params.phy_ulpi_ext_vbus, + int, 0444); +MODULE_PARM_DESC(phy_ulpi_ext_vbus, + "ULPI PHY using internal or external vbus 0=Internal"); +module_param_named(i2c_enable, dwc_otg_module_params.i2c_enable, int, 0444); +MODULE_PARM_DESC(i2c_enable, "FS PHY Interface"); +module_param_named(ulpi_fs_ls, dwc_otg_module_params.ulpi_fs_ls, int, 0444); +MODULE_PARM_DESC(ulpi_fs_ls, "ULPI PHY FS/LS mode only"); +module_param_named(ts_dline, dwc_otg_module_params.ts_dline, int, 0444); +MODULE_PARM_DESC(ts_dline, "Term select Dline pulsing for all PHYs"); +module_param_named(debug, g_dbg_lvl, int, 0444); +MODULE_PARM_DESC(debug, ""); + +module_param_named(en_multiple_tx_fifo, + dwc_otg_module_params.en_multiple_tx_fifo, int, 0444); +MODULE_PARM_DESC(en_multiple_tx_fifo, + "Dedicated Non Periodic Tx FIFOs 0=disabled 1=enabled"); +module_param_named(dev_tx_fifo_size_1, + dwc_otg_module_params.dev_tx_fifo_size[0], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_1, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_2, + dwc_otg_module_params.dev_tx_fifo_size[1], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_2, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_3, + dwc_otg_module_params.dev_tx_fifo_size[2], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_3, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_4, + dwc_otg_module_params.dev_tx_fifo_size[3], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_4, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_5, + dwc_otg_module_params.dev_tx_fifo_size[4], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_5, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_6, + dwc_otg_module_params.dev_tx_fifo_size[5], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_6, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_7, + dwc_otg_module_params.dev_tx_fifo_size[6], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_7, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_8, + dwc_otg_module_params.dev_tx_fifo_size[7], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_8, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_9, + dwc_otg_module_params.dev_tx_fifo_size[8], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_9, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_10, + dwc_otg_module_params.dev_tx_fifo_size[9], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_10, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_11, + dwc_otg_module_params.dev_tx_fifo_size[10], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_11, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_12, + dwc_otg_module_params.dev_tx_fifo_size[11], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_12, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_13, + dwc_otg_module_params.dev_tx_fifo_size[12], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_13, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_14, + dwc_otg_module_params.dev_tx_fifo_size[13], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_14, "Number of words in the Tx FIFO 4-768"); +module_param_named(dev_tx_fifo_size_15, + dwc_otg_module_params.dev_tx_fifo_size[14], int, 0444); +MODULE_PARM_DESC(dev_tx_fifo_size_15, "Number of words in the Tx FIFO 4-768"); + +module_param_named(thr_ctl, dwc_otg_module_params.thr_ctl, int, 0444); +MODULE_PARM_DESC(thr_ctl, + "Thresholding enable flag bit 0 - non ISO Tx thr., 1 - ISO Tx thr., 2 - Rx thr.- bit 0=disabled 1=enabled"); +module_param_named(tx_thr_length, dwc_otg_module_params.tx_thr_length, int, + 0444); +MODULE_PARM_DESC(tx_thr_length, "Tx Threshold length in 32 bit DWORDs"); +module_param_named(rx_thr_length, dwc_otg_module_params.rx_thr_length, int, + 0444); +MODULE_PARM_DESC(rx_thr_length, "Rx Threshold length in 32 bit DWORDs"); + +module_param_named(pti_enable, dwc_otg_module_params.pti_enable, int, 0444); +module_param_named(mpi_enable, dwc_otg_module_params.mpi_enable, int, 0444); +module_param_named(lpm_enable, dwc_otg_module_params.lpm_enable, int, 0444); +MODULE_PARM_DESC(lpm_enable, "LPM Enable 0=LPM Disabled 1=LPM Enabled"); +module_param_named(ic_usb_cap, dwc_otg_module_params.ic_usb_cap, int, 0444); +MODULE_PARM_DESC(ic_usb_cap, + "IC_USB Capability 0=IC_USB Disabled 1=IC_USB Enabled"); +module_param_named(ahb_thr_ratio, dwc_otg_module_params.ahb_thr_ratio, int, + 0444); +MODULE_PARM_DESC(ahb_thr_ratio, "AHB Threshold Ratio"); +module_param_named(power_down, dwc_otg_module_params.power_down, int, 0444); +MODULE_PARM_DESC(power_down, "Power Down Mode"); +module_param_named(reload_ctl, dwc_otg_module_params.reload_ctl, int, 0444); +MODULE_PARM_DESC(reload_ctl, "HFIR Reload Control"); +module_param_named(dev_out_nak, dwc_otg_module_params.dev_out_nak, int, 0444); +MODULE_PARM_DESC(dev_out_nak, "Enable Device OUT NAK"); +module_param_named(cont_on_bna, dwc_otg_module_params.cont_on_bna, int, 0444); +MODULE_PARM_DESC(cont_on_bna, "Enable Enable Continue on BNA"); +module_param_named(ahb_single, dwc_otg_module_params.ahb_single, int, 0444); +MODULE_PARM_DESC(ahb_single, "Enable AHB Single Support"); +module_param_named(adp_enable, dwc_otg_module_params.adp_enable, int, 0444); +MODULE_PARM_DESC(adp_enable, "ADP Enable 0=ADP Disabled 1=ADP Enabled"); +module_param_named(otg_ver, dwc_otg_module_params.otg_ver, int, 0444); +MODULE_PARM_DESC(otg_ver, "OTG revision supported 0=OTG 1.3 1=OTG 2.0"); +module_param(microframe_schedule, bool, 0444); +MODULE_PARM_DESC(microframe_schedule, "Enable the microframe scheduler"); + +module_param(fiq_enable, bool, 0444); +MODULE_PARM_DESC(fiq_enable, "Enable the FIQ"); +module_param(nak_holdoff, ushort, 0644); +MODULE_PARM_DESC(nak_holdoff, "Throttle duration for bulk split-transaction endpoints on a NAK. Default 8"); +module_param(fiq_fsm_enable, bool, 0444); +MODULE_PARM_DESC(fiq_fsm_enable, "Enable the FIQ to perform split transactions as defined by fiq_fsm_mask"); +module_param(fiq_fsm_mask, ushort, 0444); +MODULE_PARM_DESC(fiq_fsm_mask, "Bitmask of transactions to perform in the FIQ.\n" + "Bit 0 : Non-periodic split transactions\n" + "Bit 1 : Periodic split transactions\n" + "Bit 2 : High-speed multi-transfer isochronous\n" + "All other bits should be set 0."); + + +/** @page "Module Parameters" + * + * The following parameters may be specified when starting the module. + * These parameters define how the DWC_otg controller should be + * configured. Parameter values are passed to the CIL initialization + * function dwc_otg_cil_init + * + * Example: modprobe dwc_otg speed=1 otg_cap=1 + * + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +*/ diff --git a/drivers/usb/host/dwc_otg/dwc_otg_driver.h b/drivers/usb/host/dwc_otg/dwc_otg_driver.h new file mode 100644 index 0000000000000000000000000000000000000000..6a8be63a0ab20f4e1c56251b85648aa2a1d66383 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_driver.h @@ -0,0 +1,86 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_driver.h $ + * $Revision: #19 $ + * $Date: 2010/11/15 $ + * $Change: 1627671 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +#ifndef __DWC_OTG_DRIVER_H__ +#define __DWC_OTG_DRIVER_H__ + +/** @file + * This file contains the interface to the Linux driver. + */ +#include "dwc_otg_os_dep.h" +#include "dwc_otg_core_if.h" + +/* Type declarations */ +struct dwc_otg_pcd; +struct dwc_otg_hcd; + +/** + * This structure is a wrapper that encapsulates the driver components used to + * manage a single DWC_otg controller. + */ +typedef struct dwc_otg_device { + /** Structure containing OS-dependent stuff. KEEP THIS STRUCT AT THE + * VERY BEGINNING OF THE DEVICE STRUCT. OSes such as FreeBSD and NetBSD + * require this. */ + struct os_dependent os_dep; + + /** Pointer to the core interface structure. */ + dwc_otg_core_if_t *core_if; + + /** Pointer to the PCD structure. */ + struct dwc_otg_pcd *pcd; + + /** Pointer to the HCD structure. */ + struct dwc_otg_hcd *hcd; + + /** Flag to indicate whether the common IRQ handler is installed. */ + uint8_t common_irq_installed; + +} dwc_otg_device_t; + +/*We must clear S3C24XX_EINTPEND external interrupt register + * because after clearing in this register trigerred IRQ from + * H/W core in kernel interrupt can be occured again before OTG + * handlers clear all IRQ sources of Core registers because of + * timing latencies and Low Level IRQ Type. + */ +#ifdef CONFIG_MACH_IPMATE +#define S3C2410X_CLEAR_EINTPEND() \ +do { \ + __raw_writel(1UL << 11,S3C24XX_EINTPEND); \ +} while (0) +#else +#define S3C2410X_CLEAR_EINTPEND() do { } while (0) +#endif + +#endif diff --git a/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c b/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c new file mode 100644 index 0000000000000000000000000000000000000000..13047c08fb71cc6e44c66096720d4654d3f9e4e1 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c @@ -0,0 +1,1355 @@ +/* + * dwc_otg_fiq_fsm.c - The finite state machine FIQ + * + * Copyright (c) 2013 Raspberry Pi Foundation + * + * Author: Jonathan Bell + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Raspberry Pi nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * This FIQ implements functionality that performs split transactions on + * the dwc_otg hardware without any outside intervention. A split transaction + * is "queued" by nominating a specific host channel to perform the entirety + * of a split transaction. This FIQ will then perform the microframe-precise + * scheduling required in each phase of the transaction until completion. + * + * The FIQ functionality is glued into the Synopsys driver via the entry point + * in the FSM enqueue function, and at the exit point in handling a HC interrupt + * for a FSM-enabled channel. + * + * NB: Large parts of this implementation have architecture-specific code. + * For porting this functionality to other ARM machines, the minimum is required: + * - An interrupt controller allowing the top-level dwc USB interrupt to be routed + * to the FIQ + * - A method of forcing a software generated interrupt from FIQ mode that then + * triggers an IRQ entry (with the dwc USB handler called by this IRQ number) + * - Guaranteed interrupt routing such that both the FIQ and SGI occur on the same + * processor core - there is no locking between the FIQ and IRQ (aside from + * local_fiq_disable) + * + */ + +#include "dwc_otg_fiq_fsm.h" + + +char buffer[1000*16]; +int wptr; +void notrace _fiq_print(enum fiq_debug_level dbg_lvl, volatile struct fiq_state *state, char *fmt, ...) +{ + enum fiq_debug_level dbg_lvl_req = FIQDBG_ERR; + va_list args; + char text[17]; + hfnum_data_t hfnum = { .d32 = FIQ_READ(state->dwc_regs_base + 0x408) }; + + if((dbg_lvl & dbg_lvl_req) || dbg_lvl == FIQDBG_ERR) + { + snprintf(text, 9, " %4d:%1u ", hfnum.b.frnum/8, hfnum.b.frnum & 7); + va_start(args, fmt); + vsnprintf(text+8, 9, fmt, args); + va_end(args); + + memcpy(buffer + wptr, text, 16); + wptr = (wptr + 16) % sizeof(buffer); + } +} + +/** + * fiq_fsm_spin_lock() - ARMv6+ bare bones spinlock + * Must be called with local interrupts and FIQ disabled. + */ +#if defined(CONFIG_ARCH_BCM2835) && defined(CONFIG_SMP) +inline void fiq_fsm_spin_lock(fiq_lock_t *lock) +{ + unsigned long tmp; + uint32_t newval; + fiq_lock_t lockval; + smp_mb__before_spinlock(); + /* Nested locking, yay. If we are on the same CPU as the fiq, then the disable + * will be sufficient. If we are on a different CPU, then the lock protects us. */ + prefetchw(&lock->slock); + asm volatile ( + "1: ldrex %0, [%3]\n" + " add %1, %0, %4\n" + " strex %2, %1, [%3]\n" + " teq %2, #0\n" + " bne 1b" + : "=&r" (lockval), "=&r" (newval), "=&r" (tmp) + : "r" (&lock->slock), "I" (1 << 16) + : "cc"); + + while (lockval.tickets.next != lockval.tickets.owner) { + wfe(); + lockval.tickets.owner = ACCESS_ONCE(lock->tickets.owner); + } + smp_mb(); +} +#else +inline void fiq_fsm_spin_lock(fiq_lock_t *lock) { } +#endif + +/** + * fiq_fsm_spin_unlock() - ARMv6+ bare bones spinunlock + */ +#if defined(CONFIG_ARCH_BCM2835) && defined(CONFIG_SMP) +inline void fiq_fsm_spin_unlock(fiq_lock_t *lock) +{ + smp_mb(); + lock->tickets.owner++; + dsb_sev(); +} +#else +inline void fiq_fsm_spin_unlock(fiq_lock_t *lock) { } +#endif + +/** + * fiq_fsm_restart_channel() - Poke channel enable bit for a split transaction + * @channel: channel to re-enable + */ +static void fiq_fsm_restart_channel(struct fiq_state *st, int n, int force) +{ + hcchar_data_t hcchar = { .d32 = FIQ_READ(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCCHAR) }; + + hcchar.b.chen = 0; + if (st->channel[n].hcchar_copy.b.eptype & 0x1) { + hfnum_data_t hfnum = { .d32 = FIQ_READ(st->dwc_regs_base + HFNUM) }; + /* Hardware bug workaround: update the ssplit index */ + if (st->channel[n].hcsplt_copy.b.spltena) + st->channel[n].expected_uframe = (hfnum.b.frnum + 1) & 0x3FFF; + + hcchar.b.oddfrm = (hfnum.b.frnum & 0x1) ? 0 : 1; + } + + FIQ_WRITE(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCCHAR, hcchar.d32); + hcchar.d32 = FIQ_READ(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCCHAR); + hcchar.b.chen = 1; + + FIQ_WRITE(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCCHAR, hcchar.d32); + fiq_print(FIQDBG_INT, st, "HCGO %01d %01d", n, force); +} + +/** + * fiq_fsm_setup_csplit() - Prepare a host channel for a CSplit transaction stage + * @st: Pointer to the channel's state + * @n : channel number + * + * Change host channel registers to perform a complete-split transaction. Being mindful of the + * endpoint direction, set control regs up correctly. + */ +static void notrace fiq_fsm_setup_csplit(struct fiq_state *st, int n) +{ + hcsplt_data_t hcsplt = { .d32 = FIQ_READ(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCSPLT) }; + hctsiz_data_t hctsiz = { .d32 = FIQ_READ(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCTSIZ) }; + + hcsplt.b.compsplt = 1; + if (st->channel[n].hcchar_copy.b.epdir == 1) { + // If IN, the CSPLIT result contains the data or a hub handshake. hctsiz = maxpacket. + hctsiz.b.xfersize = st->channel[n].hctsiz_copy.b.xfersize; + } else { + // If OUT, the CSPLIT result contains handshake only. + hctsiz.b.xfersize = 0; + } + FIQ_WRITE(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCSPLT, hcsplt.d32); + FIQ_WRITE(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCTSIZ, hctsiz.d32); + mb(); +} + +static inline int notrace fiq_get_xfer_len(struct fiq_state *st, int n) +{ + /* The xfersize register is a bit wonky. For IN transfers, it decrements by the packet size. */ + hctsiz_data_t hctsiz = { .d32 = FIQ_READ(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCTSIZ) }; + + if (st->channel[n].hcchar_copy.b.epdir == 0) { + return st->channel[n].hctsiz_copy.b.xfersize; + } else { + return st->channel[n].hctsiz_copy.b.xfersize - hctsiz.b.xfersize; + } + +} + + +/** + * fiq_increment_dma_buf() - update DMA address for bounce buffers after a CSPLIT + * + * Of use only for IN periodic transfers. + */ +static int notrace fiq_increment_dma_buf(struct fiq_state *st, int num_channels, int n) +{ + hcdma_data_t hcdma; + int i = st->channel[n].dma_info.index; + int len; + struct fiq_dma_blob *blob = (struct fiq_dma_blob *) st->dma_base; + + len = fiq_get_xfer_len(st, n); + fiq_print(FIQDBG_INT, st, "LEN: %03d", len); + st->channel[n].dma_info.slot_len[i] = len; + i++; + if (i > 6) + BUG(); + + hcdma.d32 = (dma_addr_t) &blob->channel[n].index[i].buf[0]; + FIQ_WRITE(st->dwc_regs_base + HC_DMA + (HC_OFFSET * n), hcdma.d32); + st->channel[n].dma_info.index = i; + return 0; +} + +/** + * fiq_reload_hctsiz() - for IN transactions, reset HCTSIZ + */ +static void notrace fiq_fsm_reload_hctsiz(struct fiq_state *st, int n) +{ + hctsiz_data_t hctsiz = { .d32 = FIQ_READ(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCTSIZ) }; + hctsiz.b.xfersize = st->channel[n].hctsiz_copy.b.xfersize; + hctsiz.b.pktcnt = 1; + FIQ_WRITE(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCTSIZ, hctsiz.d32); +} + +/** + * fiq_iso_out_advance() - update DMA address and split position bits + * for isochronous OUT transactions. + * + * Returns 1 if this is the last packet queued, 0 otherwise. Split-ALL and + * Split-BEGIN states are not handled - this is done when the transaction was queued. + * + * This function must only be called from the FIQ_ISO_OUT_ACTIVE state. + */ +static int notrace fiq_iso_out_advance(struct fiq_state *st, int num_channels, int n) +{ + hcsplt_data_t hcsplt; + hctsiz_data_t hctsiz; + hcdma_data_t hcdma; + struct fiq_dma_blob *blob = (struct fiq_dma_blob *) st->dma_base; + int last = 0; + int i = st->channel[n].dma_info.index; + + fiq_print(FIQDBG_INT, st, "ADV %01d %01d ", n, i); + i++; + if (i == 4) + last = 1; + if (st->channel[n].dma_info.slot_len[i+1] == 255) + last = 1; + + /* New DMA address - address of bounce buffer referred to in index */ + hcdma.d32 = (uint32_t) &blob->channel[n].index[i].buf[0]; + //hcdma.d32 = FIQ_READ(st->dwc_regs_base + HC_DMA + (HC_OFFSET * n)); + //hcdma.d32 += st->channel[n].dma_info.slot_len[i]; + fiq_print(FIQDBG_INT, st, "LAST: %01d ", last); + fiq_print(FIQDBG_INT, st, "LEN: %03d", st->channel[n].dma_info.slot_len[i]); + hcsplt.d32 = FIQ_READ(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCSPLT); + hctsiz.d32 = FIQ_READ(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCTSIZ); + hcsplt.b.xactpos = (last) ? ISOC_XACTPOS_END : ISOC_XACTPOS_MID; + /* Set up new packet length */ + hctsiz.b.pktcnt = 1; + hctsiz.b.xfersize = st->channel[n].dma_info.slot_len[i]; + fiq_print(FIQDBG_INT, st, "%08x", hctsiz.d32); + + st->channel[n].dma_info.index++; + FIQ_WRITE(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCSPLT, hcsplt.d32); + FIQ_WRITE(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCTSIZ, hctsiz.d32); + FIQ_WRITE(st->dwc_regs_base + HC_DMA + (HC_OFFSET * n), hcdma.d32); + return last; +} + +/** + * fiq_fsm_tt_next_isoc() - queue next pending isochronous out start-split on a TT + * + * Despite the limitations of the DWC core, we can force a microframe pipeline of + * isochronous OUT start-split transactions while waiting for a corresponding other-type + * of endpoint to finish its CSPLITs. TTs have big periodic buffers therefore it + * is very unlikely that filling the start-split FIFO will cause data loss. + * This allows much better interleaving of transactions in an order-independent way- + * there is no requirement to prioritise isochronous, just a state-space search has + * to be performed on each periodic start-split complete interrupt. + */ +static int notrace fiq_fsm_tt_next_isoc(struct fiq_state *st, int num_channels, int n) +{ + int hub_addr = st->channel[n].hub_addr; + int port_addr = st->channel[n].port_addr; + int i, poked = 0; + for (i = 0; i < num_channels; i++) { + if (i == n || st->channel[i].fsm == FIQ_PASSTHROUGH) + continue; + if (st->channel[i].hub_addr == hub_addr && + st->channel[i].port_addr == port_addr) { + switch (st->channel[i].fsm) { + case FIQ_PER_ISO_OUT_PENDING: + if (st->channel[i].nrpackets == 1) { + st->channel[i].fsm = FIQ_PER_ISO_OUT_LAST; + } else { + st->channel[i].fsm = FIQ_PER_ISO_OUT_ACTIVE; + } + fiq_fsm_restart_channel(st, i, 0); + poked = 1; + break; + + default: + break; + } + } + if (poked) + break; + } + return poked; +} + +/** + * fiq_fsm_tt_in_use() - search for host channels using this TT + * @n: Channel to use as reference + * + */ +int notrace noinline fiq_fsm_tt_in_use(struct fiq_state *st, int num_channels, int n) +{ + int hub_addr = st->channel[n].hub_addr; + int port_addr = st->channel[n].port_addr; + int i, in_use = 0; + for (i = 0; i < num_channels; i++) { + if (i == n || st->channel[i].fsm == FIQ_PASSTHROUGH) + continue; + switch (st->channel[i].fsm) { + /* TT is reserved for channels that are in the middle of a periodic + * split transaction. + */ + case FIQ_PER_SSPLIT_STARTED: + case FIQ_PER_CSPLIT_WAIT: + case FIQ_PER_CSPLIT_NYET1: + //case FIQ_PER_CSPLIT_POLL: + case FIQ_PER_ISO_OUT_ACTIVE: + case FIQ_PER_ISO_OUT_LAST: + if (st->channel[i].hub_addr == hub_addr && + st->channel[i].port_addr == port_addr) { + in_use = 1; + } + break; + default: + break; + } + if (in_use) + break; + } + return in_use; +} + +/** + * fiq_fsm_more_csplits() - determine whether additional CSPLITs need + * to be issued for this IN transaction. + * + * We cannot tell the inbound PID of a data packet due to hardware limitations. + * we need to make an educated guess as to whether we need to queue another CSPLIT + * or not. A no-brainer is when we have received enough data to fill the endpoint + * size, but for endpoints that give variable-length data then we have to resort + * to heuristics. + * + * We also return whether this is the last CSPLIT to be queued, again based on + * heuristics. This is to allow a 1-uframe overlap of periodic split transactions. + * Note: requires at least 1 CSPLIT to have been performed prior to being called. + */ + +/* + * We need some way of guaranteeing if a returned periodic packet of size X + * has a DATA0 PID. + * The heuristic value of 144 bytes assumes that the received data has maximal + * bit-stuffing and the clock frequency of the transmitting device is at the lowest + * permissible limit. If the transfer length results in a final packet size + * 144 < p <= 188, then an erroneous CSPLIT will be issued. + * Also used to ensure that an endpoint will nominally only return a single + * complete-split worth of data. + */ +#define DATA0_PID_HEURISTIC 144 + +static int notrace noinline fiq_fsm_more_csplits(struct fiq_state *state, int n, int *probably_last) +{ + + int i; + int total_len = 0; + int more_needed = 1; + struct fiq_channel_state *st = &state->channel[n]; + + for (i = 0; i < st->dma_info.index; i++) { + total_len += st->dma_info.slot_len[i]; + } + + *probably_last = 0; + + if (st->hcchar_copy.b.eptype == 0x3) { + /* + * An interrupt endpoint will take max 2 CSPLITs. if we are receiving data + * then this is definitely the last CSPLIT. + */ + *probably_last = 1; + } else { + /* Isoc IN. This is a bit risky if we are the first transaction: + * we may have been held off slightly. */ + if (i > 1 && st->dma_info.slot_len[st->dma_info.index-1] <= DATA0_PID_HEURISTIC) { + more_needed = 0; + } + /* If in the next uframe we will receive enough data to fill the endpoint, + * then only issue 1 more csplit. + */ + if (st->hctsiz_copy.b.xfersize - total_len <= DATA0_PID_HEURISTIC) + *probably_last = 1; + } + + if (total_len >= st->hctsiz_copy.b.xfersize || + i == 6 || total_len == 0) + /* Note: due to bit stuffing it is possible to have > 6 CSPLITs for + * a single endpoint. Accepting more would completely break our scheduling mechanism though + * - in these extreme cases we will pass through a truncated packet. + */ + more_needed = 0; + + return more_needed; +} + +/** + * fiq_fsm_too_late() - Test transaction for lateness + * + * If a SSPLIT for a large IN transaction is issued too late in a frame, + * the hub will disable the port to the device and respond with ERR handshakes. + * The hub status endpoint will not reflect this change. + * Returns 1 if we will issue a SSPLIT that will result in a device babble. + */ +int notrace fiq_fsm_too_late(struct fiq_state *st, int n) +{ + int uframe; + hfnum_data_t hfnum = { .d32 = FIQ_READ(st->dwc_regs_base + HFNUM) }; + uframe = hfnum.b.frnum & 0x7; + if ((uframe < 6) && (st->channel[n].nrpackets + 1 + uframe > 7)) { + return 1; + } else { + return 0; + } +} + + +/** + * fiq_fsm_start_next_periodic() - A half-arsed attempt at a microframe pipeline + * + * Search pending transactions in the start-split pending state and queue them. + * Don't queue packets in uframe .5 (comes out in .6) (USB2.0 11.18.4). + * Note: we specifically don't do isochronous OUT transactions first because better + * use of the TT's start-split fifo can be achieved by pipelining an IN before an OUT. + */ +static void notrace noinline fiq_fsm_start_next_periodic(struct fiq_state *st, int num_channels) +{ + int n; + hfnum_data_t hfnum = { .d32 = FIQ_READ(st->dwc_regs_base + HFNUM) }; + if ((hfnum.b.frnum & 0x7) == 5) + return; + for (n = 0; n < num_channels; n++) { + if (st->channel[n].fsm == FIQ_PER_SSPLIT_QUEUED) { + /* Check to see if any other transactions are using this TT */ + if(!fiq_fsm_tt_in_use(st, num_channels, n)) { + if (!fiq_fsm_too_late(st, n)) { + st->channel[n].fsm = FIQ_PER_SSPLIT_STARTED; + fiq_print(FIQDBG_INT, st, "NEXTPER "); + fiq_fsm_restart_channel(st, n, 0); + } else { + st->channel[n].fsm = FIQ_PER_SPLIT_TIMEOUT; + } + break; + } + } + } + for (n = 0; n < num_channels; n++) { + if (st->channel[n].fsm == FIQ_PER_ISO_OUT_PENDING) { + if (!fiq_fsm_tt_in_use(st, num_channels, n)) { + fiq_print(FIQDBG_INT, st, "NEXTISO "); + st->channel[n].fsm = FIQ_PER_ISO_OUT_ACTIVE; + fiq_fsm_restart_channel(st, n, 0); + break; + } + } + } +} + +/** + * fiq_fsm_update_hs_isoc() - update isochronous frame and transfer data + * @state: Pointer to fiq_state + * @n: Channel transaction is active on + * @hcint: Copy of host channel interrupt register + * + * Returns 0 if there are no more transactions for this HC to do, 1 + * otherwise. + */ +static int notrace noinline fiq_fsm_update_hs_isoc(struct fiq_state *state, int n, hcint_data_t hcint) +{ + struct fiq_channel_state *st = &state->channel[n]; + int xfer_len = 0, nrpackets = 0; + hcdma_data_t hcdma; + fiq_print(FIQDBG_INT, state, "HSISO %02d", n); + + xfer_len = fiq_get_xfer_len(state, n); + st->hs_isoc_info.iso_desc[st->hs_isoc_info.index].actual_length = xfer_len; + + st->hs_isoc_info.iso_desc[st->hs_isoc_info.index].status = hcint.d32; + + st->hs_isoc_info.index++; + if (st->hs_isoc_info.index == st->hs_isoc_info.nrframes) { + return 0; + } + + /* grab the next DMA address offset from the array */ + hcdma.d32 = st->hcdma_copy.d32 + st->hs_isoc_info.iso_desc[st->hs_isoc_info.index].offset; + FIQ_WRITE(state->dwc_regs_base + HC_DMA + (HC_OFFSET * n), hcdma.d32); + + /* We need to set multi_count. This is a bit tricky - has to be set per-transaction as + * the core needs to be told to send the correct number. Caution: for IN transfers, + * this is always set to the maximum size of the endpoint. */ + xfer_len = st->hs_isoc_info.iso_desc[st->hs_isoc_info.index].length; + /* Integer divide in a FIQ: fun. FIXME: make this not suck */ + nrpackets = (xfer_len + st->hcchar_copy.b.mps - 1) / st->hcchar_copy.b.mps; + if (nrpackets == 0) + nrpackets = 1; + st->hcchar_copy.b.multicnt = nrpackets; + st->hctsiz_copy.b.pktcnt = nrpackets; + + /* Initial PID also needs to be set */ + if (st->hcchar_copy.b.epdir == 0) { + st->hctsiz_copy.b.xfersize = xfer_len; + switch (st->hcchar_copy.b.multicnt) { + case 1: + st->hctsiz_copy.b.pid = DWC_PID_DATA0; + break; + case 2: + case 3: + st->hctsiz_copy.b.pid = DWC_PID_MDATA; + break; + } + + } else { + switch (st->hcchar_copy.b.multicnt) { + st->hctsiz_copy.b.xfersize = nrpackets * st->hcchar_copy.b.mps; + case 1: + st->hctsiz_copy.b.pid = DWC_PID_DATA0; + break; + case 2: + st->hctsiz_copy.b.pid = DWC_PID_DATA1; + break; + case 3: + st->hctsiz_copy.b.pid = DWC_PID_DATA2; + break; + } + } + FIQ_WRITE(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCTSIZ, st->hctsiz_copy.d32); + FIQ_WRITE(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCCHAR, st->hcchar_copy.d32); + /* Channel is enabled on hcint handler exit */ + fiq_print(FIQDBG_INT, state, "HSISOOUT"); + return 1; +} + + +/** + * fiq_fsm_do_sof() - FSM start-of-frame interrupt handler + * @state: Pointer to the state struct passed from banked FIQ mode registers. + * @num_channels: set according to the DWC hardware configuration + * + * The SOF handler in FSM mode has two functions + * 1. Hold off SOF from causing schedule advancement in IRQ context if there's + * nothing to do + * 2. Advance certain FSM states that require either a microframe delay, or a microframe + * of holdoff. + * + * The second part is architecture-specific to mach-bcm2835 - + * a sane interrupt controller would have a mask register for ARM interrupt sources + * to be promoted to the nFIQ line, but it doesn't. Instead a single interrupt + * number (USB) can be enabled. This means that certain parts of the USB specification + * that require "wait a little while, then issue another packet" cannot be fulfilled with + * the timing granularity required to achieve optimal throughout. The workaround is to use + * the SOF "timer" (125uS) to perform this task. + */ +static int notrace noinline fiq_fsm_do_sof(struct fiq_state *state, int num_channels) +{ + hfnum_data_t hfnum = { .d32 = FIQ_READ(state->dwc_regs_base + HFNUM) }; + int n; + int kick_irq = 0; + + if ((hfnum.b.frnum & 0x7) == 1) { + /* We cannot issue csplits for transactions in the last frame past (n+1).1 + * Check to see if there are any transactions that are stale. + * Boot them out. + */ + for (n = 0; n < num_channels; n++) { + switch (state->channel[n].fsm) { + case FIQ_PER_CSPLIT_WAIT: + case FIQ_PER_CSPLIT_NYET1: + case FIQ_PER_CSPLIT_POLL: + case FIQ_PER_CSPLIT_LAST: + /* Check if we are no longer in the same full-speed frame. */ + if (((state->channel[n].expected_uframe & 0x3FFF) & ~0x7) < + (hfnum.b.frnum & ~0x7)) + state->channel[n].fsm = FIQ_PER_SPLIT_TIMEOUT; + break; + default: + break; + } + } + } + + for (n = 0; n < num_channels; n++) { + switch (state->channel[n].fsm) { + + case FIQ_NP_SSPLIT_RETRY: + case FIQ_NP_IN_CSPLIT_RETRY: + case FIQ_NP_OUT_CSPLIT_RETRY: + fiq_fsm_restart_channel(state, n, 0); + break; + + case FIQ_HS_ISOC_SLEEPING: + /* Is it time to wake this channel yet? */ + if (--state->channel[n].uframe_sleeps == 0) { + state->channel[n].fsm = FIQ_HS_ISOC_TURBO; + fiq_fsm_restart_channel(state, n, 0); + } + break; + + case FIQ_PER_SSPLIT_QUEUED: + if ((hfnum.b.frnum & 0x7) == 5) + break; + if(!fiq_fsm_tt_in_use(state, num_channels, n)) { + if (!fiq_fsm_too_late(state, n)) { + fiq_print(FIQDBG_INT, state, "SOF GO %01d", n); + fiq_fsm_restart_channel(state, n, 0); + state->channel[n].fsm = FIQ_PER_SSPLIT_STARTED; + } else { + /* Transaction cannot be started without risking a device babble error */ + state->channel[n].fsm = FIQ_PER_SPLIT_TIMEOUT; + state->haintmsk_saved.b2.chint &= ~(1 << n); + FIQ_WRITE(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCINTMSK, 0); + kick_irq |= 1; + } + } + break; + + case FIQ_PER_ISO_OUT_PENDING: + /* Ordinarily, this should be poked after the SSPLIT + * complete interrupt for a competing transfer on the same + * TT. Doesn't happen for aborted transactions though. + */ + if ((hfnum.b.frnum & 0x7) >= 5) + break; + if (!fiq_fsm_tt_in_use(state, num_channels, n)) { + /* Hardware bug. SOF can sometimes occur after the channel halt interrupt + * that caused this. + */ + fiq_fsm_restart_channel(state, n, 0); + fiq_print(FIQDBG_INT, state, "SOF ISOC"); + if (state->channel[n].nrpackets == 1) { + state->channel[n].fsm = FIQ_PER_ISO_OUT_LAST; + } else { + state->channel[n].fsm = FIQ_PER_ISO_OUT_ACTIVE; + } + } + break; + + case FIQ_PER_CSPLIT_WAIT: + /* we are guaranteed to be in this state if and only if the SSPLIT interrupt + * occurred when the bus transaction occurred. The SOF interrupt reversal bug + * will utterly bugger this up though. + */ + if (hfnum.b.frnum != state->channel[n].expected_uframe) { + fiq_print(FIQDBG_INT, state, "SOFCS %d ", n); + state->channel[n].fsm = FIQ_PER_CSPLIT_POLL; + fiq_fsm_restart_channel(state, n, 0); + fiq_fsm_start_next_periodic(state, num_channels); + + } + break; + + case FIQ_PER_SPLIT_TIMEOUT: + case FIQ_DEQUEUE_ISSUED: + /* Ugly: we have to force a HCD interrupt. + * Poke the mask for the channel in question. + * We will take a fake SOF because of this, but + * that's OK. + */ + state->haintmsk_saved.b2.chint &= ~(1 << n); + FIQ_WRITE(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCINTMSK, 0); + kick_irq |= 1; + break; + + default: + break; + } + } + + if (state->kick_np_queues || + dwc_frame_num_le(state->next_sched_frame, hfnum.b.frnum)) + kick_irq |= 1; + + return !kick_irq; +} + + +/** + * fiq_fsm_do_hcintr() - FSM host channel interrupt handler + * @state: Pointer to the FIQ state struct + * @num_channels: Number of channels as per hardware config + * @n: channel for which HAINT(i) was raised + * + * An important property is that only the CHHLT interrupt is unmasked. Unfortunately, AHBerr is as well. + */ +static int notrace noinline fiq_fsm_do_hcintr(struct fiq_state *state, int num_channels, int n) +{ + hcint_data_t hcint; + hcintmsk_data_t hcintmsk; + hcint_data_t hcint_probe; + hcchar_data_t hcchar; + int handled = 0; + int restart = 0; + int last_csplit = 0; + int start_next_periodic = 0; + struct fiq_channel_state *st = &state->channel[n]; + hfnum_data_t hfnum; + + hcint.d32 = FIQ_READ(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCINT); + hcintmsk.d32 = FIQ_READ(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCINTMSK); + hcint_probe.d32 = hcint.d32 & hcintmsk.d32; + + if (st->fsm != FIQ_PASSTHROUGH) { + fiq_print(FIQDBG_INT, state, "HC%01d ST%02d", n, st->fsm); + fiq_print(FIQDBG_INT, state, "%08x", hcint.d32); + } + + switch (st->fsm) { + + case FIQ_PASSTHROUGH: + case FIQ_DEQUEUE_ISSUED: + /* doesn't belong to us, kick it upstairs */ + break; + + case FIQ_PASSTHROUGH_ERRORSTATE: + /* We are here to emulate the error recovery mechanism of the dwc HCD. + * Several interrupts are unmasked if a previous transaction failed - it's + * death for the FIQ to attempt to handle them as the channel isn't halted. + * Emulate what the HCD does in this situation: mask and continue. + * The FSM has no other state setup so this has to be handled out-of-band. + */ + fiq_print(FIQDBG_ERR, state, "ERRST %02d", n); + if (hcint_probe.b.nak || hcint_probe.b.ack || hcint_probe.b.datatglerr) { + fiq_print(FIQDBG_ERR, state, "RESET %02d", n); + /* In some random cases we can get a NAK interrupt coincident with a Xacterr + * interrupt, after the device has disappeared. + */ + if (!hcint.b.xacterr) + st->nr_errors = 0; + hcintmsk.b.nak = 0; + hcintmsk.b.ack = 0; + hcintmsk.b.datatglerr = 0; + FIQ_WRITE(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCINTMSK, hcintmsk.d32); + return 1; + } + if (hcint_probe.b.chhltd) { + fiq_print(FIQDBG_ERR, state, "CHHLT %02d", n); + fiq_print(FIQDBG_ERR, state, "%08x", hcint.d32); + return 0; + } + break; + + /* Non-periodic state groups */ + case FIQ_NP_SSPLIT_STARTED: + case FIQ_NP_SSPLIT_RETRY: + /* Got a HCINT for a NP SSPLIT. Expected ACK / NAK / fail */ + if (hcint.b.ack) { + /* SSPLIT complete. For OUT, the data has been sent. For IN, the LS transaction + * will start shortly. SOF needs to kick the transaction to prevent a NYET flood. + */ + if(st->hcchar_copy.b.epdir == 1) + st->fsm = FIQ_NP_IN_CSPLIT_RETRY; + else + st->fsm = FIQ_NP_OUT_CSPLIT_RETRY; + st->nr_errors = 0; + handled = 1; + fiq_fsm_setup_csplit(state, n); + } else if (hcint.b.nak) { + // No buffer space in TT. Retry on a uframe boundary. + st->fsm = FIQ_NP_SSPLIT_RETRY; + handled = 1; + } else if (hcint.b.xacterr) { + // The only other one we care about is xacterr. This implies HS bus error - retry. + st->nr_errors++; + st->fsm = FIQ_NP_SSPLIT_RETRY; + if (st->nr_errors >= 3) { + st->fsm = FIQ_NP_SPLIT_HS_ABORTED; + } else { + handled = 1; + restart = 1; + } + } else { + st->fsm = FIQ_NP_SPLIT_LS_ABORTED; + handled = 0; + restart = 0; + } + break; + + case FIQ_NP_IN_CSPLIT_RETRY: + /* Received a CSPLIT done interrupt. + * Expected Data/NAK/STALL/NYET for IN. + */ + if (hcint.b.xfercomp) { + /* For IN, data is present. */ + st->fsm = FIQ_NP_SPLIT_DONE; + } else if (hcint.b.nak) { + /* no endpoint data. Punt it upstairs */ + st->fsm = FIQ_NP_SPLIT_DONE; + } else if (hcint.b.nyet) { + /* CSPLIT NYET - retry on a uframe boundary. */ + handled = 1; + st->nr_errors = 0; + } else if (hcint.b.datatglerr) { + /* data toggle errors do not set the xfercomp bit. */ + st->fsm = FIQ_NP_SPLIT_LS_ABORTED; + } else if (hcint.b.xacterr) { + /* HS error. Retry immediate */ + st->fsm = FIQ_NP_IN_CSPLIT_RETRY; + st->nr_errors++; + if (st->nr_errors >= 3) { + st->fsm = FIQ_NP_SPLIT_HS_ABORTED; + } else { + handled = 1; + restart = 1; + } + } else if (hcint.b.stall || hcint.b.bblerr) { + /* A STALL implies either a LS bus error or a genuine STALL. */ + st->fsm = FIQ_NP_SPLIT_LS_ABORTED; + } else { + /* Hardware bug. It's possible in some cases to + * get a channel halt with nothing else set when + * the response was a NYET. Treat as local 3-strikes retry. + */ + hcint_data_t hcint_test = hcint; + hcint_test.b.chhltd = 0; + if (!hcint_test.d32) { + st->nr_errors++; + if (st->nr_errors >= 3) { + st->fsm = FIQ_NP_SPLIT_HS_ABORTED; + } else { + handled = 1; + } + } else { + /* Bail out if something unexpected happened */ + st->fsm = FIQ_NP_SPLIT_HS_ABORTED; + } + } + break; + + case FIQ_NP_OUT_CSPLIT_RETRY: + /* Received a CSPLIT done interrupt. + * Expected ACK/NAK/STALL/NYET/XFERCOMP for OUT.*/ + if (hcint.b.xfercomp) { + st->fsm = FIQ_NP_SPLIT_DONE; + } else if (hcint.b.nak) { + // The HCD will implement the holdoff on frame boundaries. + st->fsm = FIQ_NP_SPLIT_DONE; + } else if (hcint.b.nyet) { + // Hub still processing. + st->fsm = FIQ_NP_OUT_CSPLIT_RETRY; + handled = 1; + st->nr_errors = 0; + //restart = 1; + } else if (hcint.b.xacterr) { + /* HS error. retry immediate */ + st->fsm = FIQ_NP_OUT_CSPLIT_RETRY; + st->nr_errors++; + if (st->nr_errors >= 3) { + st->fsm = FIQ_NP_SPLIT_HS_ABORTED; + } else { + handled = 1; + restart = 1; + } + } else if (hcint.b.stall) { + /* LS bus error or genuine stall */ + st->fsm = FIQ_NP_SPLIT_LS_ABORTED; + } else { + /* + * Hardware bug. It's possible in some cases to get a + * channel halt with nothing else set when the response was a NYET. + * Treat as local 3-strikes retry. + */ + hcint_data_t hcint_test = hcint; + hcint_test.b.chhltd = 0; + if (!hcint_test.d32) { + st->nr_errors++; + if (st->nr_errors >= 3) { + st->fsm = FIQ_NP_SPLIT_HS_ABORTED; + } else { + handled = 1; + } + } else { + // Something unexpected happened. AHBerror or babble perhaps. Let the IRQ deal with it. + st->fsm = FIQ_NP_SPLIT_HS_ABORTED; + } + } + break; + + /* Periodic split states (except isoc out) */ + case FIQ_PER_SSPLIT_STARTED: + /* Expect an ACK or failure for SSPLIT */ + if (hcint.b.ack) { + /* + * SSPLIT transfer complete interrupt - the generation of this interrupt is fraught with bugs. + * For a packet queued in microframe n-3 to appear in n-2, if the channel is enabled near the EOF1 + * point for microframe n-3, the packet will not appear on the bus until microframe n. + * Additionally, the generation of the actual interrupt is dodgy. For a packet appearing on the bus + * in microframe n, sometimes the interrupt is generated immediately. Sometimes, it appears in n+1 + * coincident with SOF for n+1. + * SOF is also buggy. It can sometimes be raised AFTER the first bus transaction has taken place. + * These appear to be caused by timing/clock crossing bugs within the core itself. + * State machine workaround. + */ + hfnum.d32 = FIQ_READ(state->dwc_regs_base + HFNUM); + hcchar.d32 = FIQ_READ(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCCHAR); + fiq_fsm_setup_csplit(state, n); + /* Poke the oddfrm bit. If we are equivalent, we received the interrupt at the correct + * time. If not, then we're in the next SOF. + */ + if ((hfnum.b.frnum & 0x1) == hcchar.b.oddfrm) { + fiq_print(FIQDBG_INT, state, "CSWAIT %01d", n); + st->expected_uframe = hfnum.b.frnum; + st->fsm = FIQ_PER_CSPLIT_WAIT; + } else { + fiq_print(FIQDBG_INT, state, "CSPOL %01d", n); + /* For isochronous IN endpoints, + * we need to hold off if we are expecting a lot of data */ + if (st->hcchar_copy.b.mps < DATA0_PID_HEURISTIC) { + start_next_periodic = 1; + } + /* Danger will robinson: we are in a broken state. If our first interrupt after + * this is a NYET, it will be delayed by 1 uframe and result in an unrecoverable + * lag. Unmask the NYET interrupt. + */ + st->expected_uframe = (hfnum.b.frnum + 1) & 0x3FFF; + st->fsm = FIQ_PER_CSPLIT_BROKEN_NYET1; + restart = 1; + } + handled = 1; + } else if (hcint.b.xacterr) { + /* 3-strikes retry is enabled, we have hit our max nr_errors */ + st->fsm = FIQ_PER_SPLIT_HS_ABORTED; + start_next_periodic = 1; + } else { + st->fsm = FIQ_PER_SPLIT_HS_ABORTED; + start_next_periodic = 1; + } + /* We can now queue the next isochronous OUT transaction, if one is pending. */ + if(fiq_fsm_tt_next_isoc(state, num_channels, n)) { + fiq_print(FIQDBG_INT, state, "NEXTISO "); + } + break; + + case FIQ_PER_CSPLIT_NYET1: + /* First CSPLIT attempt was a NYET. If we get a subsequent NYET, + * we are too late and the TT has dropped its CSPLIT fifo. + */ + hfnum.d32 = FIQ_READ(state->dwc_regs_base + HFNUM); + hcchar.d32 = FIQ_READ(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCCHAR); + start_next_periodic = 1; + if (hcint.b.nak) { + st->fsm = FIQ_PER_SPLIT_DONE; + } else if (hcint.b.xfercomp) { + fiq_increment_dma_buf(state, num_channels, n); + st->fsm = FIQ_PER_CSPLIT_POLL; + st->nr_errors = 0; + if (fiq_fsm_more_csplits(state, n, &last_csplit)) { + handled = 1; + restart = 1; + if (!last_csplit) + start_next_periodic = 0; + } else { + st->fsm = FIQ_PER_SPLIT_DONE; + } + } else if (hcint.b.nyet) { + /* Doh. Data lost. */ + st->fsm = FIQ_PER_SPLIT_NYET_ABORTED; + } else if (hcint.b.xacterr || hcint.b.stall || hcint.b.bblerr) { + st->fsm = FIQ_PER_SPLIT_LS_ABORTED; + } else { + st->fsm = FIQ_PER_SPLIT_HS_ABORTED; + } + break; + + case FIQ_PER_CSPLIT_BROKEN_NYET1: + /* + * we got here because our host channel is in the delayed-interrupt + * state and we cannot take a NYET interrupt any later than when it + * occurred. Disable then re-enable the channel if this happens to force + * CSPLITs to occur at the right time. + */ + hfnum.d32 = FIQ_READ(state->dwc_regs_base + HFNUM); + hcchar.d32 = FIQ_READ(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCCHAR); + fiq_print(FIQDBG_INT, state, "BROK: %01d ", n); + if (hcint.b.nak) { + st->fsm = FIQ_PER_SPLIT_DONE; + start_next_periodic = 1; + } else if (hcint.b.xfercomp) { + fiq_increment_dma_buf(state, num_channels, n); + if (fiq_fsm_more_csplits(state, n, &last_csplit)) { + st->fsm = FIQ_PER_CSPLIT_POLL; + handled = 1; + restart = 1; + start_next_periodic = 1; + /* Reload HCTSIZ for the next transfer */ + fiq_fsm_reload_hctsiz(state, n); + if (!last_csplit) + start_next_periodic = 0; + } else { + st->fsm = FIQ_PER_SPLIT_DONE; + } + } else if (hcint.b.nyet) { + st->fsm = FIQ_PER_SPLIT_NYET_ABORTED; + start_next_periodic = 1; + } else if (hcint.b.xacterr || hcint.b.stall || hcint.b.bblerr) { + /* Local 3-strikes retry is handled by the core. This is a ERR response.*/ + st->fsm = FIQ_PER_SPLIT_LS_ABORTED; + } else { + st->fsm = FIQ_PER_SPLIT_HS_ABORTED; + } + break; + + case FIQ_PER_CSPLIT_POLL: + hfnum.d32 = FIQ_READ(state->dwc_regs_base + HFNUM); + hcchar.d32 = FIQ_READ(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCCHAR); + start_next_periodic = 1; + if (hcint.b.nak) { + st->fsm = FIQ_PER_SPLIT_DONE; + } else if (hcint.b.xfercomp) { + fiq_increment_dma_buf(state, num_channels, n); + if (fiq_fsm_more_csplits(state, n, &last_csplit)) { + handled = 1; + restart = 1; + /* Reload HCTSIZ for the next transfer */ + fiq_fsm_reload_hctsiz(state, n); + if (!last_csplit) + start_next_periodic = 0; + } else { + st->fsm = FIQ_PER_SPLIT_DONE; + } + } else if (hcint.b.nyet) { + /* Are we a NYET after the first data packet? */ + if (st->nrpackets == 0) { + st->fsm = FIQ_PER_CSPLIT_NYET1; + handled = 1; + restart = 1; + } else { + /* We got a NYET when polling CSPLITs. Can happen + * if our heuristic fails, or if someone disables us + * for any significant length of time. + */ + if (st->nr_errors >= 3) { + st->fsm = FIQ_PER_SPLIT_NYET_ABORTED; + } else { + st->fsm = FIQ_PER_SPLIT_DONE; + } + } + } else if (hcint.b.xacterr || hcint.b.stall || hcint.b.bblerr) { + /* For xacterr, Local 3-strikes retry is handled by the core. This is a ERR response.*/ + st->fsm = FIQ_PER_SPLIT_LS_ABORTED; + } else { + st->fsm = FIQ_PER_SPLIT_HS_ABORTED; + } + break; + + case FIQ_HS_ISOC_TURBO: + if (fiq_fsm_update_hs_isoc(state, n, hcint)) { + /* more transactions to come */ + handled = 1; + fiq_print(FIQDBG_INT, state, "HSISO M "); + /* For strided transfers, put ourselves to sleep */ + if (st->hs_isoc_info.stride > 1) { + st->uframe_sleeps = st->hs_isoc_info.stride - 1; + st->fsm = FIQ_HS_ISOC_SLEEPING; + } else { + restart = 1; + } + } else { + st->fsm = FIQ_HS_ISOC_DONE; + fiq_print(FIQDBG_INT, state, "HSISO F "); + } + break; + + case FIQ_HS_ISOC_ABORTED: + /* This abort is called by the driver rewriting the state mid-transaction + * which allows the dequeue mechanism to work more effectively. + */ + break; + + case FIQ_PER_ISO_OUT_ACTIVE: + if (hcint.b.ack) { + if(fiq_iso_out_advance(state, num_channels, n)) { + /* last OUT transfer */ + st->fsm = FIQ_PER_ISO_OUT_LAST; + /* + * Assuming the periodic FIFO in the dwc core + * actually does its job properly, we can queue + * the next ssplit now and in theory, the wire + * transactions will be in-order. + */ + // No it doesn't. It appears to process requests in host channel order. + //start_next_periodic = 1; + } + handled = 1; + restart = 1; + } else { + /* + * Isochronous transactions carry on regardless. Log the error + * and continue. + */ + //explode += 1; + st->nr_errors++; + if(fiq_iso_out_advance(state, num_channels, n)) { + st->fsm = FIQ_PER_ISO_OUT_LAST; + //start_next_periodic = 1; + } + handled = 1; + restart = 1; + } + break; + + case FIQ_PER_ISO_OUT_LAST: + if (hcint.b.ack) { + /* All done here */ + st->fsm = FIQ_PER_ISO_OUT_DONE; + } else { + st->fsm = FIQ_PER_ISO_OUT_DONE; + st->nr_errors++; + } + start_next_periodic = 1; + break; + + case FIQ_PER_SPLIT_TIMEOUT: + /* SOF kicked us because we overran. */ + start_next_periodic = 1; + break; + + default: + break; + } + + if (handled) { + FIQ_WRITE(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCINT, hcint.d32); + } else { + /* Copy the regs into the state so the IRQ knows what to do */ + st->hcint_copy.d32 = hcint.d32; + } + + if (restart) { + /* Restart always implies handled. */ + if (restart == 2) { + /* For complete-split INs, the show must go on. + * Force a channel restart */ + fiq_fsm_restart_channel(state, n, 1); + } else { + fiq_fsm_restart_channel(state, n, 0); + } + } + if (start_next_periodic) { + fiq_fsm_start_next_periodic(state, num_channels); + } + if (st->fsm != FIQ_PASSTHROUGH) + fiq_print(FIQDBG_INT, state, "FSMOUT%02d", st->fsm); + + return handled; +} + + +/** + * dwc_otg_fiq_fsm() - Flying State Machine (monster) FIQ + * @state: pointer to state struct passed from the banked FIQ mode registers. + * @num_channels: set according to the DWC hardware configuration + * @dma: pointer to DMA bounce buffers for split transaction slots + * + * The FSM FIQ performs the low-level tasks that normally would be performed by the microcode + * inside an EHCI or similar host controller regarding split transactions. The DWC core + * interrupts each and every time a split transaction packet is received or sent successfully. + * This results in either an interrupt storm when everything is working "properly", or + * the interrupt latency of the system in general breaks time-sensitive periodic split + * transactions. Pushing the low-level, but relatively easy state machine work into the FIQ + * solves these problems. + * + * Return: void + */ +void notrace dwc_otg_fiq_fsm(struct fiq_state *state, int num_channels) +{ + gintsts_data_t gintsts, gintsts_handled; + gintmsk_data_t gintmsk; + //hfnum_data_t hfnum; + haint_data_t haint, haint_handled; + haintmsk_data_t haintmsk; + int kick_irq = 0; + + gintsts_handled.d32 = 0; + haint_handled.d32 = 0; + + fiq_fsm_spin_lock(&state->lock); + gintsts.d32 = FIQ_READ(state->dwc_regs_base + GINTSTS); + gintmsk.d32 = FIQ_READ(state->dwc_regs_base + GINTMSK); + gintsts.d32 &= gintmsk.d32; + + if (gintsts.b.sofintr) { + /* For FSM mode, SOF is required to keep the state machine advance for + * certain stages of the periodic pipeline. It's death to mask this + * interrupt in that case. + */ + + if (!fiq_fsm_do_sof(state, num_channels)) { + /* Kick IRQ once. Queue advancement means that all pending transactions + * will get serviced when the IRQ finally executes. + */ + if (state->gintmsk_saved.b.sofintr == 1) + kick_irq |= 1; + state->gintmsk_saved.b.sofintr = 0; + } + gintsts_handled.b.sofintr = 1; + } + + if (gintsts.b.hcintr) { + int i; + haint.d32 = FIQ_READ(state->dwc_regs_base + HAINT); + haintmsk.d32 = FIQ_READ(state->dwc_regs_base + HAINTMSK); + haint.d32 &= haintmsk.d32; + haint_handled.d32 = 0; + for (i=0; ihaintmsk_saved.b2.chint &= ~(1 << i); + } else { + /* do_hcintr cleaned up after itself, but clear haint */ + haint_handled.b2.chint |= (1 << i); + } + } + } + + if (haint_handled.b2.chint) { + FIQ_WRITE(state->dwc_regs_base + HAINT, haint_handled.d32); + } + + if (haintmsk.d32 != (haintmsk.d32 & state->haintmsk_saved.d32)) { + /* + * This is necessary to avoid multiple retriggers of the MPHI in the case + * where interrupts are held off and HCINTs start to pile up. + * Only wake up the IRQ if a new interrupt came in, was not handled and was + * masked. + */ + haintmsk.d32 &= state->haintmsk_saved.d32; + FIQ_WRITE(state->dwc_regs_base + HAINTMSK, haintmsk.d32); + kick_irq |= 1; + } + /* Top-Level interrupt - always handled because it's level-sensitive */ + gintsts_handled.b.hcintr = 1; + } + + + /* Clear the bits in the saved register that were not handled but were triggered. */ + state->gintmsk_saved.d32 &= ~(gintsts.d32 & ~gintsts_handled.d32); + + /* FIQ didn't handle something - mask has changed - write new mask */ + if (gintmsk.d32 != (gintmsk.d32 & state->gintmsk_saved.d32)) { + gintmsk.d32 &= state->gintmsk_saved.d32; + gintmsk.b.sofintr = 1; + FIQ_WRITE(state->dwc_regs_base + GINTMSK, gintmsk.d32); +// fiq_print(FIQDBG_INT, state, "KICKGINT"); +// fiq_print(FIQDBG_INT, state, "%08x", gintmsk.d32); +// fiq_print(FIQDBG_INT, state, "%08x", state->gintmsk_saved.d32); + kick_irq |= 1; + } + + if (gintsts_handled.d32) { + /* Only applies to edge-sensitive bits in GINTSTS */ + FIQ_WRITE(state->dwc_regs_base + GINTSTS, gintsts_handled.d32); + } + + /* We got an interrupt, didn't handle it. */ + if (kick_irq) { + state->mphi_int_count++; + FIQ_WRITE(state->mphi_regs.outdda, (int) state->dummy_send); + FIQ_WRITE(state->mphi_regs.outddb, (1<<29)); + + } + state->fiq_done++; + mb(); + fiq_fsm_spin_unlock(&state->lock); +} + + +/** + * dwc_otg_fiq_nop() - FIQ "lite" + * @state: pointer to state struct passed from the banked FIQ mode registers. + * + * The "nop" handler does not intervene on any interrupts other than SOF. + * It is limited in scope to deciding at each SOF if the IRQ SOF handler (which deals + * with non-periodic/periodic queues) needs to be kicked. + * + * This is done to hold off the SOF interrupt, which occurs at a rate of 8000 per second. + * + * Return: void + */ +void notrace dwc_otg_fiq_nop(struct fiq_state *state) +{ + gintsts_data_t gintsts, gintsts_handled; + gintmsk_data_t gintmsk; + hfnum_data_t hfnum; + + fiq_fsm_spin_lock(&state->lock); + hfnum.d32 = FIQ_READ(state->dwc_regs_base + HFNUM); + gintsts.d32 = FIQ_READ(state->dwc_regs_base + GINTSTS); + gintmsk.d32 = FIQ_READ(state->dwc_regs_base + GINTMSK); + gintsts.d32 &= gintmsk.d32; + gintsts_handled.d32 = 0; + + if (gintsts.b.sofintr) { + if (!state->kick_np_queues && + dwc_frame_num_gt(state->next_sched_frame, hfnum.b.frnum)) { + /* SOF handled, no work to do, just ACK interrupt */ + gintsts_handled.b.sofintr = 1; + } else { + /* Kick IRQ */ + state->gintmsk_saved.b.sofintr = 0; + } + } + + /* Reset handled interrupts */ + if(gintsts_handled.d32) { + FIQ_WRITE(state->dwc_regs_base + GINTSTS, gintsts_handled.d32); + } + + /* Clear the bits in the saved register that were not handled but were triggered. */ + state->gintmsk_saved.d32 &= ~(gintsts.d32 & ~gintsts_handled.d32); + + /* We got an interrupt, didn't handle it and want to mask it */ + if (~(state->gintmsk_saved.d32)) { + state->mphi_int_count++; + gintmsk.d32 &= state->gintmsk_saved.d32; + FIQ_WRITE(state->dwc_regs_base + GINTMSK, gintmsk.d32); + /* Force a clear before another dummy send */ + FIQ_WRITE(state->mphi_regs.intstat, (1<<29)); + FIQ_WRITE(state->mphi_regs.outdda, (int) state->dummy_send); + FIQ_WRITE(state->mphi_regs.outddb, (1<<29)); + + } + state->fiq_done++; + mb(); + fiq_fsm_spin_unlock(&state->lock); +} diff --git a/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.h b/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.h new file mode 100644 index 0000000000000000000000000000000000000000..f9fddfbcffb37f32c808fd78f222b676378398b1 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.h @@ -0,0 +1,370 @@ +/* + * dwc_otg_fiq_fsm.h - Finite state machine FIQ header definitions + * + * Copyright (c) 2013 Raspberry Pi Foundation + * + * Author: Jonathan Bell + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Raspberry Pi nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * This FIQ implements functionality that performs split transactions on + * the dwc_otg hardware without any outside intervention. A split transaction + * is "queued" by nominating a specific host channel to perform the entirety + * of a split transaction. This FIQ will then perform the microframe-precise + * scheduling required in each phase of the transaction until completion. + * + * The FIQ functionality has been surgically implanted into the Synopsys + * vendor-provided driver. + * + */ + +#ifndef DWC_OTG_FIQ_FSM_H_ +#define DWC_OTG_FIQ_FSM_H_ + +#include "dwc_otg_regs.h" +#include "dwc_otg_cil.h" +#include "dwc_otg_hcd.h" +#include +#include +#include +#include + +#if 0 +#define FLAME_ON(x) \ +do { \ + int gpioreg; \ + \ + gpioreg = readl(__io_address(0x20200000+0x8)); \ + gpioreg &= ~(7 << (x-20)*3); \ + gpioreg |= 0x1 << (x-20)*3; \ + writel(gpioreg, __io_address(0x20200000+0x8)); \ + \ + writel(1< 1, SOF wakes up the isochronous FSM */ + FIQ_HS_ISOC_SLEEPING = 24, + FIQ_HS_ISOC_DONE = 25, + FIQ_HS_ISOC_ABORTED = 26, + FIQ_DEQUEUE_ISSUED = 30, + FIQ_TEST = 32, +}; + +struct fiq_stack { + int magic1; + uint8_t stack[2048]; + int magic2; +}; + + +/** + * struct fiq_dma_info - DMA bounce buffer utilisation information (per-channel) + * @index: Number of slots reported used for IN transactions / number of slots + * transmitted for an OUT transaction + * @slot_len[6]: Number of actual transfer bytes in each slot (255 if unused) + * + * Split transaction transfers can have variable length depending on other bus + * traffic. The OTG core DMA engine requires 4-byte aligned addresses therefore + * each transaction needs a guaranteed aligned address. A maximum of 6 split transfers + * can happen per-frame. + */ +struct fiq_dma_info { + u8 index; + u8 slot_len[6]; +}; + +struct __attribute__((packed)) fiq_split_dma_slot { + u8 buf[188]; +}; + +struct fiq_dma_channel { + struct __attribute__((packed)) fiq_split_dma_slot index[6]; +}; + +struct fiq_dma_blob { + struct __attribute__((packed)) fiq_dma_channel channel[0]; +}; + +/** + * struct fiq_hs_isoc_info - USB2.0 isochronous data + * @iso_frame: Pointer to the array of OTG URB iso_frame_descs. + * @nrframes: Total length of iso_frame_desc array + * @index: Current index (FIQ-maintained) + * @stride: Interval in uframes between HS isoc transactions + */ +struct fiq_hs_isoc_info { + struct dwc_otg_hcd_iso_packet_desc *iso_desc; + unsigned int nrframes; + unsigned int index; + unsigned int stride; +}; + +/** + * struct fiq_channel_state - FIQ state machine storage + * @fsm: Current state of the channel as understood by the FIQ + * @nr_errors: Number of transaction errors on this split-transaction + * @hub_addr: SSPLIT/CSPLIT destination hub + * @port_addr: SSPLIT/CSPLIT destination port - always 1 if single TT hub + * @nrpackets: For isoc OUT, the number of split-OUT packets to transmit. For + * split-IN, number of CSPLIT data packets that were received. + * @hcchar_copy: + * @hcsplt_copy: + * @hcintmsk_copy: + * @hctsiz_copy: Copies of the host channel registers. + * For use as scratch, or for returning state. + * + * The fiq_channel_state is state storage between interrupts for a host channel. The + * FSM state is stored here. Members of this structure must only be set up by the + * driver prior to enabling the FIQ for this host channel, and not touched until the FIQ + * has updated the state to either a COMPLETE state group or ABORT state group. + */ + +struct fiq_channel_state { + enum fiq_fsm_state fsm; + unsigned int nr_errors; + unsigned int hub_addr; + unsigned int port_addr; + /* Hardware bug workaround: sometimes channel halt interrupts are + * delayed until the next SOF. Keep track of when we expected to get interrupted. */ + unsigned int expected_uframe; + /* number of uframes remaining (for interval > 1 HS isoc transfers) before next transfer */ + unsigned int uframe_sleeps; + /* in/out for communicating number of dma buffers used, or number of ISOC to do */ + unsigned int nrpackets; + struct fiq_dma_info dma_info; + struct fiq_hs_isoc_info hs_isoc_info; + /* Copies of HC registers - in/out communication from/to IRQ handler + * and for ease of channel setup. A bit of mungeing is performed - for + * example the hctsiz.b.maxp is _always_ the max packet size of the endpoint. + */ + hcchar_data_t hcchar_copy; + hcsplt_data_t hcsplt_copy; + hcint_data_t hcint_copy; + hcintmsk_data_t hcintmsk_copy; + hctsiz_data_t hctsiz_copy; + hcdma_data_t hcdma_copy; +}; + +/** + * struct fiq_state - top-level FIQ state machine storage + * @mphi_regs: virtual address of the MPHI peripheral register file + * @dwc_regs_base: virtual address of the base of the DWC core register file + * @dma_base: physical address for the base of the DMA bounce buffers + * @dummy_send: Scratch area for sending a fake message to the MPHI peripheral + * @gintmsk_saved: Top-level mask of interrupts that the FIQ has not handled. + * Used for determining which interrupts fired to set off the IRQ handler. + * @haintmsk_saved: Mask of interrupts from host channels that the FIQ did not handle internally. + * @np_count: Non-periodic transactions in the active queue + * @np_sent: Count of non-periodic transactions that have completed + * @next_sched_frame: For periodic transactions handled by the driver's SOF-driven queuing mechanism, + * this is the next frame on which a SOF interrupt is required. Used to hold off + * passing SOF through to the driver until necessary. + * @channel[n]: Per-channel FIQ state. Allocated during init depending on the number of host + * channels configured into the core logic. + * + * This is passed as the first argument to the dwc_otg_fiq_fsm top-level FIQ handler from the asm stub. + * It contains top-level state information. + */ +struct fiq_state { + fiq_lock_t lock; + mphi_regs_t mphi_regs; + void *dwc_regs_base; + dma_addr_t dma_base; + struct fiq_dma_blob *fiq_dmab; + void *dummy_send; + gintmsk_data_t gintmsk_saved; + haintmsk_data_t haintmsk_saved; + int mphi_int_count; + unsigned int fiq_done; + unsigned int kick_np_queues; + unsigned int next_sched_frame; +#ifdef FIQ_DEBUG + char * buffer; + unsigned int bufsiz; +#endif + struct fiq_channel_state channel[0]; +}; + +extern void fiq_fsm_spin_lock(fiq_lock_t *lock); + +extern void fiq_fsm_spin_unlock(fiq_lock_t *lock); + +extern int fiq_fsm_too_late(struct fiq_state *st, int n); + +extern int fiq_fsm_tt_in_use(struct fiq_state *st, int num_channels, int n); + +extern void dwc_otg_fiq_fsm(struct fiq_state *state, int num_channels); + +extern void dwc_otg_fiq_nop(struct fiq_state *state); + +#endif /* DWC_OTG_FIQ_FSM_H_ */ diff --git a/drivers/usb/host/dwc_otg/dwc_otg_fiq_stub.S b/drivers/usb/host/dwc_otg/dwc_otg_fiq_stub.S new file mode 100644 index 0000000000000000000000000000000000000000..ffa8d21bc61e893fee86ba04955587e7661d3ff2 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_fiq_stub.S @@ -0,0 +1,80 @@ +/* + * dwc_otg_fiq_fsm.S - assembly stub for the FSM FIQ + * + * Copyright (c) 2013 Raspberry Pi Foundation + * + * Author: Jonathan Bell + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Raspberry Pi nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + + +#include +#include + + +.text + +.global _dwc_otg_fiq_stub_end; + +/** + * _dwc_otg_fiq_stub() - entry copied to the FIQ vector page to allow + * a C-style function call with arguments from the FIQ banked registers. + * r0 = &hcd->fiq_state + * r1 = &hcd->num_channels + * r2 = &hcd->dma_buffers + * Tramples: r0, r1, r2, r4, fp, ip + */ + +ENTRY(_dwc_otg_fiq_stub) + /* Stash unbanked regs - SP will have been set up for us */ + mov ip, sp; + stmdb sp!, {r0-r12, lr}; +#ifdef FIQ_DEBUG + // Cycle profiling - read cycle counter at start + mrc p15, 0, r5, c15, c12, 1; +#endif + /* r11 = fp, don't trample it */ + mov r4, fp; + /* set EABI frame size */ + sub fp, ip, #512; + + /* for fiq NOP mode - just need state */ + mov r0, r8; + /* r9 = num_channels */ + mov r1, r9; + /* r10 = struct *dma_bufs */ +// mov r2, r10; + + /* r4 = &fiq_c_function */ + blx r4; +#ifdef FIQ_DEBUG + mrc p15, 0, r4, c15, c12, 1; + subs r5, r5, r4; + // r5 is now the cycle count time for executing the FIQ. Store it somewhere? +#endif + ldmia sp!, {r0-r12, lr}; + subs pc, lr, #4; +_dwc_otg_fiq_stub_end: +END(_dwc_otg_fiq_stub) diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c new file mode 100644 index 0000000000000000000000000000000000000000..027414bb2bf9fc3f3652407724187f3c6dc5ff68 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c @@ -0,0 +1,4260 @@ + +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd.c $ + * $Revision: #104 $ + * $Date: 2011/10/24 $ + * $Change: 1871159 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ +#ifndef DWC_DEVICE_ONLY + +/** @file + * This file implements HCD Core. All code in this file is portable and doesn't + * use any OS specific functions. + * Interface provided by HCD Core is defined in + * header file. + */ + +#include +#include + +#include "dwc_otg_hcd.h" +#include "dwc_otg_regs.h" +#include "dwc_otg_fiq_fsm.h" + +extern bool microframe_schedule; +extern uint16_t fiq_fsm_mask, nak_holdoff; + +//#define DEBUG_HOST_CHANNELS +#ifdef DEBUG_HOST_CHANNELS +static int last_sel_trans_num_per_scheduled = 0; +static int last_sel_trans_num_nonper_scheduled = 0; +static int last_sel_trans_num_avail_hc_at_start = 0; +static int last_sel_trans_num_avail_hc_at_end = 0; +#endif /* DEBUG_HOST_CHANNELS */ + + +dwc_otg_hcd_t *dwc_otg_hcd_alloc_hcd(void) +{ + return DWC_ALLOC(sizeof(dwc_otg_hcd_t)); +} + +/** + * Connection timeout function. An OTG host is required to display a + * message if the device does not connect within 10 seconds. + */ +void dwc_otg_hcd_connect_timeout(void *ptr) +{ + DWC_DEBUGPL(DBG_HCDV, "%s(%p)\n", __func__, ptr); + DWC_PRINTF("Connect Timeout\n"); + __DWC_ERROR("Device Not Connected/Responding\n"); +} + +#if defined(DEBUG) +static void dump_channel_info(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) +{ + if (qh->channel != NULL) { + dwc_hc_t *hc = qh->channel; + dwc_list_link_t *item; + dwc_otg_qh_t *qh_item; + int num_channels = hcd->core_if->core_params->host_channels; + int i; + + dwc_otg_hc_regs_t *hc_regs; + hcchar_data_t hcchar; + hcsplt_data_t hcsplt; + hctsiz_data_t hctsiz; + uint32_t hcdma; + + hc_regs = hcd->core_if->host_if->hc_regs[hc->hc_num]; + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + hcsplt.d32 = DWC_READ_REG32(&hc_regs->hcsplt); + hctsiz.d32 = DWC_READ_REG32(&hc_regs->hctsiz); + hcdma = DWC_READ_REG32(&hc_regs->hcdma); + + DWC_PRINTF(" Assigned to channel %p:\n", hc); + DWC_PRINTF(" hcchar 0x%08x, hcsplt 0x%08x\n", hcchar.d32, + hcsplt.d32); + DWC_PRINTF(" hctsiz 0x%08x, hcdma 0x%08x\n", hctsiz.d32, + hcdma); + DWC_PRINTF(" dev_addr: %d, ep_num: %d, ep_is_in: %d\n", + hc->dev_addr, hc->ep_num, hc->ep_is_in); + DWC_PRINTF(" ep_type: %d\n", hc->ep_type); + DWC_PRINTF(" max_packet: %d\n", hc->max_packet); + DWC_PRINTF(" data_pid_start: %d\n", hc->data_pid_start); + DWC_PRINTF(" xfer_started: %d\n", hc->xfer_started); + DWC_PRINTF(" halt_status: %d\n", hc->halt_status); + DWC_PRINTF(" xfer_buff: %p\n", hc->xfer_buff); + DWC_PRINTF(" xfer_len: %d\n", hc->xfer_len); + DWC_PRINTF(" qh: %p\n", hc->qh); + DWC_PRINTF(" NP inactive sched:\n"); + DWC_LIST_FOREACH(item, &hcd->non_periodic_sched_inactive) { + qh_item = + DWC_LIST_ENTRY(item, dwc_otg_qh_t, qh_list_entry); + DWC_PRINTF(" %p\n", qh_item); + } + DWC_PRINTF(" NP active sched:\n"); + DWC_LIST_FOREACH(item, &hcd->non_periodic_sched_active) { + qh_item = + DWC_LIST_ENTRY(item, dwc_otg_qh_t, qh_list_entry); + DWC_PRINTF(" %p\n", qh_item); + } + DWC_PRINTF(" Channels: \n"); + for (i = 0; i < num_channels; i++) { + dwc_hc_t *hc = hcd->hc_ptr_array[i]; + DWC_PRINTF(" %2d: %p\n", i, hc); + } + } +} +#else +#define dump_channel_info(hcd, qh) +#endif /* DEBUG */ + +/** + * Work queue function for starting the HCD when A-Cable is connected. + * The hcd_start() must be called in a process context. + */ +static void hcd_start_func(void *_vp) +{ + dwc_otg_hcd_t *hcd = (dwc_otg_hcd_t *) _vp; + + DWC_DEBUGPL(DBG_HCDV, "%s() %p\n", __func__, hcd); + if (hcd) { + hcd->fops->start(hcd); + } +} + +static void del_xfer_timers(dwc_otg_hcd_t * hcd) +{ +#ifdef DEBUG + int i; + int num_channels = hcd->core_if->core_params->host_channels; + for (i = 0; i < num_channels; i++) { + DWC_TIMER_CANCEL(hcd->core_if->hc_xfer_timer[i]); + } +#endif +} + +static void del_timers(dwc_otg_hcd_t * hcd) +{ + del_xfer_timers(hcd); + DWC_TIMER_CANCEL(hcd->conn_timer); +} + +/** + * Processes all the URBs in a single list of QHs. Completes them with + * -ESHUTDOWN and frees the QTD. + */ +static void kill_urbs_in_qh_list(dwc_otg_hcd_t * hcd, dwc_list_link_t * qh_list) +{ + dwc_list_link_t *qh_item, *qh_tmp; + dwc_otg_qh_t *qh; + dwc_otg_qtd_t *qtd, *qtd_tmp; + + DWC_LIST_FOREACH_SAFE(qh_item, qh_tmp, qh_list) { + qh = DWC_LIST_ENTRY(qh_item, dwc_otg_qh_t, qh_list_entry); + DWC_CIRCLEQ_FOREACH_SAFE(qtd, qtd_tmp, + &qh->qtd_list, qtd_list_entry) { + qtd = DWC_CIRCLEQ_FIRST(&qh->qtd_list); + if (qtd->urb != NULL) { + hcd->fops->complete(hcd, qtd->urb->priv, + qtd->urb, -DWC_E_SHUTDOWN); + dwc_otg_hcd_qtd_remove_and_free(hcd, qtd, qh); + } + + } + if(qh->channel) { + /* Using hcchar.chen == 1 is not a reliable test. + * It is possible that the channel has already halted + * but not yet been through the IRQ handler. + */ + dwc_otg_hc_halt(hcd->core_if, qh->channel, + DWC_OTG_HC_XFER_URB_DEQUEUE); + if(microframe_schedule) + hcd->available_host_channels++; + qh->channel = NULL; + } + dwc_otg_hcd_qh_remove(hcd, qh); + } +} + +/** + * Responds with an error status of ESHUTDOWN to all URBs in the non-periodic + * and periodic schedules. The QTD associated with each URB is removed from + * the schedule and freed. This function may be called when a disconnect is + * detected or when the HCD is being stopped. + */ +static void kill_all_urbs(dwc_otg_hcd_t * hcd) +{ + kill_urbs_in_qh_list(hcd, &hcd->non_periodic_sched_inactive); + kill_urbs_in_qh_list(hcd, &hcd->non_periodic_sched_active); + kill_urbs_in_qh_list(hcd, &hcd->periodic_sched_inactive); + kill_urbs_in_qh_list(hcd, &hcd->periodic_sched_ready); + kill_urbs_in_qh_list(hcd, &hcd->periodic_sched_assigned); + kill_urbs_in_qh_list(hcd, &hcd->periodic_sched_queued); +} + +/** + * Start the connection timer. An OTG host is required to display a + * message if the device does not connect within 10 seconds. The + * timer is deleted if a port connect interrupt occurs before the + * timer expires. + */ +static void dwc_otg_hcd_start_connect_timer(dwc_otg_hcd_t * hcd) +{ + DWC_TIMER_SCHEDULE(hcd->conn_timer, 10000 /* 10 secs */ ); +} + +/** + * HCD Callback function for disconnect of the HCD. + * + * @param p void pointer to the struct usb_hcd + */ +static int32_t dwc_otg_hcd_session_start_cb(void *p) +{ + dwc_otg_hcd_t *dwc_otg_hcd; + DWC_DEBUGPL(DBG_HCDV, "%s(%p)\n", __func__, p); + dwc_otg_hcd = p; + dwc_otg_hcd_start_connect_timer(dwc_otg_hcd); + return 1; +} + +/** + * HCD Callback function for starting the HCD when A-Cable is + * connected. + * + * @param p void pointer to the struct usb_hcd + */ +static int32_t dwc_otg_hcd_start_cb(void *p) +{ + dwc_otg_hcd_t *dwc_otg_hcd = p; + dwc_otg_core_if_t *core_if; + hprt0_data_t hprt0; + + core_if = dwc_otg_hcd->core_if; + + if (core_if->op_state == B_HOST) { + /* + * Reset the port. During a HNP mode switch the reset + * needs to occur within 1ms and have a duration of at + * least 50ms. + */ + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtrst = 1; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + } + DWC_WORKQ_SCHEDULE_DELAYED(core_if->wq_otg, + hcd_start_func, dwc_otg_hcd, 50, + "start hcd"); + + return 1; +} + +/** + * HCD Callback function for disconnect of the HCD. + * + * @param p void pointer to the struct usb_hcd + */ +static int32_t dwc_otg_hcd_disconnect_cb(void *p) +{ + gintsts_data_t intr; + dwc_otg_hcd_t *dwc_otg_hcd = p; + + /* + * Set status flags for the hub driver. + */ + dwc_otg_hcd->flags.b.port_connect_status_change = 1; + dwc_otg_hcd->flags.b.port_connect_status = 0; + if(fiq_enable) + local_fiq_disable(); + /* + * Shutdown any transfers in process by clearing the Tx FIFO Empty + * interrupt mask and status bits and disabling subsequent host + * channel interrupts. + */ + intr.d32 = 0; + intr.b.nptxfempty = 1; + intr.b.ptxfempty = 1; + intr.b.hcintr = 1; + DWC_MODIFY_REG32(&dwc_otg_hcd->core_if->core_global_regs->gintmsk, + intr.d32, 0); + DWC_MODIFY_REG32(&dwc_otg_hcd->core_if->core_global_regs->gintsts, + intr.d32, 0); + + del_timers(dwc_otg_hcd); + + /* + * Turn off the vbus power only if the core has transitioned to device + * mode. If still in host mode, need to keep power on to detect a + * reconnection. + */ + if (dwc_otg_is_device_mode(dwc_otg_hcd->core_if)) { + if (dwc_otg_hcd->core_if->op_state != A_SUSPEND) { + hprt0_data_t hprt0 = {.d32 = 0 }; + DWC_PRINTF("Disconnect: PortPower off\n"); + hprt0.b.prtpwr = 0; + DWC_WRITE_REG32(dwc_otg_hcd->core_if->host_if->hprt0, + hprt0.d32); + } + + dwc_otg_disable_host_interrupts(dwc_otg_hcd->core_if); + } + + /* Respond with an error status to all URBs in the schedule. */ + kill_all_urbs(dwc_otg_hcd); + + if (dwc_otg_is_host_mode(dwc_otg_hcd->core_if)) { + /* Clean up any host channels that were in use. */ + int num_channels; + int i; + dwc_hc_t *channel; + dwc_otg_hc_regs_t *hc_regs; + hcchar_data_t hcchar; + + num_channels = dwc_otg_hcd->core_if->core_params->host_channels; + + if (!dwc_otg_hcd->core_if->dma_enable) { + /* Flush out any channel requests in slave mode. */ + for (i = 0; i < num_channels; i++) { + channel = dwc_otg_hcd->hc_ptr_array[i]; + if (DWC_CIRCLEQ_EMPTY_ENTRY + (channel, hc_list_entry)) { + hc_regs = + dwc_otg_hcd->core_if-> + host_if->hc_regs[i]; + hcchar.d32 = + DWC_READ_REG32(&hc_regs->hcchar); + if (hcchar.b.chen) { + hcchar.b.chen = 0; + hcchar.b.chdis = 1; + hcchar.b.epdir = 0; + DWC_WRITE_REG32 + (&hc_regs->hcchar, + hcchar.d32); + } + } + } + } + + for (i = 0; i < num_channels; i++) { + channel = dwc_otg_hcd->hc_ptr_array[i]; + if (DWC_CIRCLEQ_EMPTY_ENTRY(channel, hc_list_entry)) { + hc_regs = + dwc_otg_hcd->core_if->host_if->hc_regs[i]; + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + if (hcchar.b.chen) { + /* Halt the channel. */ + hcchar.b.chdis = 1; + DWC_WRITE_REG32(&hc_regs->hcchar, + hcchar.d32); + } + + dwc_otg_hc_cleanup(dwc_otg_hcd->core_if, + channel); + DWC_CIRCLEQ_INSERT_TAIL + (&dwc_otg_hcd->free_hc_list, channel, + hc_list_entry); + /* + * Added for Descriptor DMA to prevent channel double cleanup + * in release_channel_ddma(). Which called from ep_disable + * when device disconnect. + */ + channel->qh = NULL; + } + } + if(fiq_fsm_enable) { + for(i=0; i < 128; i++) { + dwc_otg_hcd->hub_port[i] = 0; + } + } + + } + + if(fiq_enable) + local_fiq_enable(); + + if (dwc_otg_hcd->fops->disconnect) { + dwc_otg_hcd->fops->disconnect(dwc_otg_hcd); + } + + return 1; +} + +/** + * HCD Callback function for stopping the HCD. + * + * @param p void pointer to the struct usb_hcd + */ +static int32_t dwc_otg_hcd_stop_cb(void *p) +{ + dwc_otg_hcd_t *dwc_otg_hcd = p; + + DWC_DEBUGPL(DBG_HCDV, "%s(%p)\n", __func__, p); + dwc_otg_hcd_stop(dwc_otg_hcd); + return 1; +} + +#ifdef CONFIG_USB_DWC_OTG_LPM +/** + * HCD Callback function for sleep of HCD. + * + * @param p void pointer to the struct usb_hcd + */ +static int dwc_otg_hcd_sleep_cb(void *p) +{ + dwc_otg_hcd_t *hcd = p; + + dwc_otg_hcd_free_hc_from_lpm(hcd); + + return 0; +} +#endif + + +/** + * HCD Callback function for Remote Wakeup. + * + * @param p void pointer to the struct usb_hcd + */ +static int dwc_otg_hcd_rem_wakeup_cb(void *p) +{ + dwc_otg_hcd_t *hcd = p; + + if (hcd->core_if->lx_state == DWC_OTG_L2) { + hcd->flags.b.port_suspend_change = 1; + } +#ifdef CONFIG_USB_DWC_OTG_LPM + else { + hcd->flags.b.port_l1_change = 1; + } +#endif + return 0; +} + +/** + * Halts the DWC_otg host mode operations in a clean manner. USB transfers are + * stopped. + */ +void dwc_otg_hcd_stop(dwc_otg_hcd_t * hcd) +{ + hprt0_data_t hprt0 = {.d32 = 0 }; + + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD STOP\n"); + + /* + * The root hub should be disconnected before this function is called. + * The disconnect will clear the QTD lists (via ..._hcd_urb_dequeue) + * and the QH lists (via ..._hcd_endpoint_disable). + */ + + /* Turn off all host-specific interrupts. */ + dwc_otg_disable_host_interrupts(hcd->core_if); + + /* Turn off the vbus power */ + DWC_PRINTF("PortPower off\n"); + hprt0.b.prtpwr = 0; + DWC_WRITE_REG32(hcd->core_if->host_if->hprt0, hprt0.d32); + dwc_mdelay(1); +} + +int dwc_otg_hcd_urb_enqueue(dwc_otg_hcd_t * hcd, + dwc_otg_hcd_urb_t * dwc_otg_urb, void **ep_handle, + int atomic_alloc) +{ + int retval = 0; + uint8_t needs_scheduling = 0; + dwc_otg_transaction_type_e tr_type; + dwc_otg_qtd_t *qtd; + gintmsk_data_t intr_mask = {.d32 = 0 }; + hprt0_data_t hprt0 = { .d32 = 0 }; + +#ifdef DEBUG /* integrity checks (Broadcom) */ + if (NULL == hcd->core_if) { + DWC_ERROR("**** DWC OTG HCD URB Enqueue - HCD has NULL core_if\n"); + /* No longer connected. */ + return -DWC_E_INVALID; + } +#endif + if (!hcd->flags.b.port_connect_status) { + /* No longer connected. */ + DWC_ERROR("Not connected\n"); + return -DWC_E_NO_DEVICE; + } + + /* Some core configurations cannot support LS traffic on a FS root port */ + if ((hcd->fops->speed(hcd, dwc_otg_urb->priv) == USB_SPEED_LOW) && + (hcd->core_if->hwcfg2.b.fs_phy_type == 1) && + (hcd->core_if->hwcfg2.b.hs_phy_type == 1)) { + hprt0.d32 = DWC_READ_REG32(hcd->core_if->host_if->hprt0); + if (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_FULL_SPEED) { + return -DWC_E_NO_DEVICE; + } + } + + qtd = dwc_otg_hcd_qtd_create(dwc_otg_urb, atomic_alloc); + if (qtd == NULL) { + DWC_ERROR("DWC OTG HCD URB Enqueue failed creating QTD\n"); + return -DWC_E_NO_MEMORY; + } +#ifdef DEBUG /* integrity checks (Broadcom) */ + if (qtd->urb == NULL) { + DWC_ERROR("**** DWC OTG HCD URB Enqueue created QTD with no URBs\n"); + return -DWC_E_NO_MEMORY; + } + if (qtd->urb->priv == NULL) { + DWC_ERROR("**** DWC OTG HCD URB Enqueue created QTD URB with no URB handle\n"); + return -DWC_E_NO_MEMORY; + } +#endif + intr_mask.d32 = DWC_READ_REG32(&hcd->core_if->core_global_regs->gintmsk); + if(!intr_mask.b.sofintr || fiq_enable) needs_scheduling = 1; + if((((dwc_otg_qh_t *)ep_handle)->ep_type == UE_BULK) && !(qtd->urb->flags & URB_GIVEBACK_ASAP)) + /* Do not schedule SG transactions until qtd has URB_GIVEBACK_ASAP set */ + needs_scheduling = 0; + + retval = dwc_otg_hcd_qtd_add(qtd, hcd, (dwc_otg_qh_t **) ep_handle, atomic_alloc); + // creates a new queue in ep_handle if it doesn't exist already + if (retval < 0) { + DWC_ERROR("DWC OTG HCD URB Enqueue failed adding QTD. " + "Error status %d\n", retval); + dwc_otg_hcd_qtd_free(qtd); + return retval; + } + + if(needs_scheduling) { + tr_type = dwc_otg_hcd_select_transactions(hcd); + if (tr_type != DWC_OTG_TRANSACTION_NONE) { + dwc_otg_hcd_queue_transactions(hcd, tr_type); + } + } + return retval; +} + +int dwc_otg_hcd_urb_dequeue(dwc_otg_hcd_t * hcd, + dwc_otg_hcd_urb_t * dwc_otg_urb) +{ + dwc_otg_qh_t *qh; + dwc_otg_qtd_t *urb_qtd; + BUG_ON(!hcd); + BUG_ON(!dwc_otg_urb); + +#ifdef DEBUG /* integrity checks (Broadcom) */ + + if (hcd == NULL) { + DWC_ERROR("**** DWC OTG HCD URB Dequeue has NULL HCD\n"); + return -DWC_E_INVALID; + } + if (dwc_otg_urb == NULL) { + DWC_ERROR("**** DWC OTG HCD URB Dequeue has NULL URB\n"); + return -DWC_E_INVALID; + } + if (dwc_otg_urb->qtd == NULL) { + DWC_ERROR("**** DWC OTG HCD URB Dequeue with NULL QTD\n"); + return -DWC_E_INVALID; + } + urb_qtd = dwc_otg_urb->qtd; + BUG_ON(!urb_qtd); + if (urb_qtd->qh == NULL) { + DWC_ERROR("**** DWC OTG HCD URB Dequeue with QTD with NULL Q handler\n"); + return -DWC_E_INVALID; + } +#else + urb_qtd = dwc_otg_urb->qtd; + BUG_ON(!urb_qtd); +#endif + qh = urb_qtd->qh; + BUG_ON(!qh); + if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) { + if (urb_qtd->in_process) { + dump_channel_info(hcd, qh); + } + } +#ifdef DEBUG /* integrity checks (Broadcom) */ + if (hcd->core_if == NULL) { + DWC_ERROR("**** DWC OTG HCD URB Dequeue HCD has NULL core_if\n"); + return -DWC_E_INVALID; + } +#endif + if (urb_qtd->in_process && qh->channel) { + /* The QTD is in process (it has been assigned to a channel). */ + if (hcd->flags.b.port_connect_status) { + int n = qh->channel->hc_num; + /* + * If still connected (i.e. in host mode), halt the + * channel so it can be used for other transfers. If + * no longer connected, the host registers can't be + * written to halt the channel since the core is in + * device mode. + */ + /* In FIQ FSM mode, we need to shut down carefully. + * The FIQ may attempt to restart a disabled channel */ + if (fiq_fsm_enable && (hcd->fiq_state->channel[n].fsm != FIQ_PASSTHROUGH)) { + qh->channel->halt_status = DWC_OTG_HC_XFER_URB_DEQUEUE; + qh->channel->halt_pending = 1; + hcd->fiq_state->channel[n].fsm = FIQ_DEQUEUE_ISSUED; + } else { + dwc_otg_hc_halt(hcd->core_if, qh->channel, + DWC_OTG_HC_XFER_URB_DEQUEUE); + } + } + } + + /* + * Free the QTD and clean up the associated QH. Leave the QH in the + * schedule if it has any remaining QTDs. + */ + + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD URB Dequeue - " + "delete %sQueue handler\n", + hcd->core_if->dma_desc_enable?"DMA ":""); + if (!hcd->core_if->dma_desc_enable) { + uint8_t b = urb_qtd->in_process; + dwc_otg_hcd_qtd_remove_and_free(hcd, urb_qtd, qh); + if (b) { + dwc_otg_hcd_qh_deactivate(hcd, qh, 0); + qh->channel = NULL; + } else if (DWC_CIRCLEQ_EMPTY(&qh->qtd_list)) { + dwc_otg_hcd_qh_remove(hcd, qh); + } + } else { + dwc_otg_hcd_qtd_remove_and_free(hcd, urb_qtd, qh); + } + return 0; +} + +int dwc_otg_hcd_endpoint_disable(dwc_otg_hcd_t * hcd, void *ep_handle, + int retry) +{ + dwc_otg_qh_t *qh = (dwc_otg_qh_t *) ep_handle; + int retval = 0; + dwc_irqflags_t flags; + + if (retry < 0) { + retval = -DWC_E_INVALID; + goto done; + } + + if (!qh) { + retval = -DWC_E_INVALID; + goto done; + } + + DWC_SPINLOCK_IRQSAVE(hcd->lock, &flags); + + while (!DWC_CIRCLEQ_EMPTY(&qh->qtd_list) && retry) { + DWC_SPINUNLOCK_IRQRESTORE(hcd->lock, flags); + retry--; + dwc_msleep(5); + DWC_SPINLOCK_IRQSAVE(hcd->lock, &flags); + } + + dwc_otg_hcd_qh_remove(hcd, qh); + + DWC_SPINUNLOCK_IRQRESTORE(hcd->lock, flags); + /* + * Split dwc_otg_hcd_qh_remove_and_free() into qh_remove + * and qh_free to prevent stack dump on DWC_DMA_FREE() with + * irq_disabled (spinlock_irqsave) in dwc_otg_hcd_desc_list_free() + * and dwc_otg_hcd_frame_list_alloc(). + */ + dwc_otg_hcd_qh_free(hcd, qh); + +done: + return retval; +} + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30) +int dwc_otg_hcd_endpoint_reset(dwc_otg_hcd_t * hcd, void *ep_handle) +{ + int retval = 0; + dwc_otg_qh_t *qh = (dwc_otg_qh_t *) ep_handle; + if (!qh) + return -DWC_E_INVALID; + + qh->data_toggle = DWC_OTG_HC_PID_DATA0; + return retval; +} +#endif + +/** + * HCD Callback structure for handling mode switching. + */ +static dwc_otg_cil_callbacks_t hcd_cil_callbacks = { + .start = dwc_otg_hcd_start_cb, + .stop = dwc_otg_hcd_stop_cb, + .disconnect = dwc_otg_hcd_disconnect_cb, + .session_start = dwc_otg_hcd_session_start_cb, + .resume_wakeup = dwc_otg_hcd_rem_wakeup_cb, +#ifdef CONFIG_USB_DWC_OTG_LPM + .sleep = dwc_otg_hcd_sleep_cb, +#endif + .p = 0, +}; + +/** + * Reset tasklet function + */ +static void reset_tasklet_func(void *data) +{ + dwc_otg_hcd_t *dwc_otg_hcd = (dwc_otg_hcd_t *) data; + dwc_otg_core_if_t *core_if = dwc_otg_hcd->core_if; + hprt0_data_t hprt0; + + DWC_DEBUGPL(DBG_HCDV, "USB RESET tasklet called\n"); + + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtrst = 1; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + dwc_mdelay(60); + + hprt0.b.prtrst = 0; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + dwc_otg_hcd->flags.b.port_reset_change = 1; +} + +static void completion_tasklet_func(void *ptr) +{ + dwc_otg_hcd_t *hcd = (dwc_otg_hcd_t *) ptr; + struct urb *urb; + urb_tq_entry_t *item; + dwc_irqflags_t flags; + + /* This could just be spin_lock_irq */ + DWC_SPINLOCK_IRQSAVE(hcd->lock, &flags); + while (!DWC_TAILQ_EMPTY(&hcd->completed_urb_list)) { + item = DWC_TAILQ_FIRST(&hcd->completed_urb_list); + urb = item->urb; + DWC_TAILQ_REMOVE(&hcd->completed_urb_list, item, + urb_tq_entries); + DWC_SPINUNLOCK_IRQRESTORE(hcd->lock, flags); + DWC_FREE(item); + + usb_hcd_giveback_urb(hcd->priv, urb, urb->status); + + + DWC_SPINLOCK_IRQSAVE(hcd->lock, &flags); + } + DWC_SPINUNLOCK_IRQRESTORE(hcd->lock, flags); + return; +} + +static void qh_list_free(dwc_otg_hcd_t * hcd, dwc_list_link_t * qh_list) +{ + dwc_list_link_t *item; + dwc_otg_qh_t *qh; + dwc_irqflags_t flags; + + if (!qh_list->next) { + /* The list hasn't been initialized yet. */ + return; + } + /* + * Hold spinlock here. Not needed in that case if bellow + * function is being called from ISR + */ + DWC_SPINLOCK_IRQSAVE(hcd->lock, &flags); + /* Ensure there are no QTDs or URBs left. */ + kill_urbs_in_qh_list(hcd, qh_list); + DWC_SPINUNLOCK_IRQRESTORE(hcd->lock, flags); + + DWC_LIST_FOREACH(item, qh_list) { + qh = DWC_LIST_ENTRY(item, dwc_otg_qh_t, qh_list_entry); + dwc_otg_hcd_qh_remove_and_free(hcd, qh); + } +} + +/** + * Exit from Hibernation if Host did not detect SRP from connected SRP capable + * Device during SRP time by host power up. + */ +void dwc_otg_hcd_power_up(void *ptr) +{ + gpwrdn_data_t gpwrdn = {.d32 = 0 }; + dwc_otg_core_if_t *core_if = (dwc_otg_core_if_t *) ptr; + + DWC_PRINTF("%s called\n", __FUNCTION__); + + if (!core_if->hibernation_suspend) { + DWC_PRINTF("Already exited from Hibernation\n"); + return; + } + + /* Switch on the voltage to the core */ + gpwrdn.b.pwrdnswtch = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + /* Reset the core */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnrstn = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + /* Disable power clamps */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnclmp = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + + /* Remove reset the core signal */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnrstn = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32); + dwc_udelay(10); + + /* Disable PMU interrupt */ + gpwrdn.d32 = 0; + gpwrdn.b.pmuintsel = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + + core_if->hibernation_suspend = 0; + + /* Disable PMU */ + gpwrdn.d32 = 0; + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + dwc_udelay(10); + + /* Enable VBUS */ + gpwrdn.d32 = 0; + gpwrdn.b.dis_vbus = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0); + + core_if->op_state = A_HOST; + dwc_otg_core_init(core_if); + dwc_otg_enable_global_interrupts(core_if); + cil_hcd_start(core_if); +} + +void dwc_otg_cleanup_fiq_channel(dwc_otg_hcd_t *hcd, uint32_t num) +{ + struct fiq_channel_state *st = &hcd->fiq_state->channel[num]; + struct fiq_dma_blob *blob = hcd->fiq_dmab; + int i; + + st->fsm = FIQ_PASSTHROUGH; + st->hcchar_copy.d32 = 0; + st->hcsplt_copy.d32 = 0; + st->hcint_copy.d32 = 0; + st->hcintmsk_copy.d32 = 0; + st->hctsiz_copy.d32 = 0; + st->hcdma_copy.d32 = 0; + st->nr_errors = 0; + st->hub_addr = 0; + st->port_addr = 0; + st->expected_uframe = 0; + st->nrpackets = 0; + st->dma_info.index = 0; + for (i = 0; i < 6; i++) + st->dma_info.slot_len[i] = 255; + st->hs_isoc_info.index = 0; + st->hs_isoc_info.iso_desc = NULL; + st->hs_isoc_info.nrframes = 0; + + DWC_MEMSET(&blob->channel[num].index[0], 0x6b, 1128); +} + +/** + * Frees secondary storage associated with the dwc_otg_hcd structure contained + * in the struct usb_hcd field. + */ +static void dwc_otg_hcd_free(dwc_otg_hcd_t * dwc_otg_hcd) +{ + struct device *dev = dwc_otg_hcd_to_dev(dwc_otg_hcd); + int i; + + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD FREE\n"); + + del_timers(dwc_otg_hcd); + + /* Free memory for QH/QTD lists */ + qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->non_periodic_sched_inactive); + qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->non_periodic_sched_active); + qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->periodic_sched_inactive); + qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->periodic_sched_ready); + qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->periodic_sched_assigned); + qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->periodic_sched_queued); + + /* Free memory for the host channels. */ + for (i = 0; i < MAX_EPS_CHANNELS; i++) { + dwc_hc_t *hc = dwc_otg_hcd->hc_ptr_array[i]; + +#ifdef DEBUG + if (dwc_otg_hcd->core_if->hc_xfer_timer[i]) { + DWC_TIMER_FREE(dwc_otg_hcd->core_if->hc_xfer_timer[i]); + } +#endif + if (hc != NULL) { + DWC_DEBUGPL(DBG_HCDV, "HCD Free channel #%i, hc=%p\n", + i, hc); + DWC_FREE(hc); + } + } + + if (dwc_otg_hcd->core_if->dma_enable) { + if (dwc_otg_hcd->status_buf_dma) { + DWC_DMA_FREE(dev, DWC_OTG_HCD_STATUS_BUF_SIZE, + dwc_otg_hcd->status_buf, + dwc_otg_hcd->status_buf_dma); + } + } else if (dwc_otg_hcd->status_buf != NULL) { + DWC_FREE(dwc_otg_hcd->status_buf); + } + DWC_SPINLOCK_FREE(dwc_otg_hcd->channel_lock); + DWC_SPINLOCK_FREE(dwc_otg_hcd->lock); + /* Set core_if's lock pointer to NULL */ + dwc_otg_hcd->core_if->lock = NULL; + + DWC_TIMER_FREE(dwc_otg_hcd->conn_timer); + DWC_TASK_FREE(dwc_otg_hcd->reset_tasklet); + DWC_TASK_FREE(dwc_otg_hcd->completion_tasklet); + DWC_FREE(dwc_otg_hcd->fiq_state); + +#ifdef DWC_DEV_SRPCAP + if (dwc_otg_hcd->core_if->power_down == 2 && + dwc_otg_hcd->core_if->pwron_timer) { + DWC_TIMER_FREE(dwc_otg_hcd->core_if->pwron_timer); + } +#endif + DWC_FREE(dwc_otg_hcd); +} + +int init_hcd_usecs(dwc_otg_hcd_t *_hcd); + +int dwc_otg_hcd_init(dwc_otg_hcd_t * hcd, dwc_otg_core_if_t * core_if) +{ + struct device *dev = dwc_otg_hcd_to_dev(hcd); + int retval = 0; + int num_channels; + int i; + dwc_hc_t *channel; + +#if (defined(DWC_LINUX) && defined(CONFIG_DEBUG_SPINLOCK)) + DWC_SPINLOCK_ALLOC_LINUX_DEBUG(hcd->lock); + DWC_SPINLOCK_ALLOC_LINUX_DEBUG(hcd->channel_lock); +#else + hcd->lock = DWC_SPINLOCK_ALLOC(); + hcd->channel_lock = DWC_SPINLOCK_ALLOC(); +#endif + DWC_DEBUGPL(DBG_HCDV, "init of HCD %p given core_if %p\n", + hcd, core_if); + if (!hcd->lock) { + DWC_ERROR("Could not allocate lock for pcd"); + DWC_FREE(hcd); + retval = -DWC_E_NO_MEMORY; + goto out; + } + hcd->core_if = core_if; + + /* Register the HCD CIL Callbacks */ + dwc_otg_cil_register_hcd_callbacks(hcd->core_if, + &hcd_cil_callbacks, hcd); + + /* Initialize the non-periodic schedule. */ + DWC_LIST_INIT(&hcd->non_periodic_sched_inactive); + DWC_LIST_INIT(&hcd->non_periodic_sched_active); + + /* Initialize the periodic schedule. */ + DWC_LIST_INIT(&hcd->periodic_sched_inactive); + DWC_LIST_INIT(&hcd->periodic_sched_ready); + DWC_LIST_INIT(&hcd->periodic_sched_assigned); + DWC_LIST_INIT(&hcd->periodic_sched_queued); + DWC_TAILQ_INIT(&hcd->completed_urb_list); + /* + * Create a host channel descriptor for each host channel implemented + * in the controller. Initialize the channel descriptor array. + */ + DWC_CIRCLEQ_INIT(&hcd->free_hc_list); + num_channels = hcd->core_if->core_params->host_channels; + DWC_MEMSET(hcd->hc_ptr_array, 0, sizeof(hcd->hc_ptr_array)); + for (i = 0; i < num_channels; i++) { + channel = DWC_ALLOC(sizeof(dwc_hc_t)); + if (channel == NULL) { + retval = -DWC_E_NO_MEMORY; + DWC_ERROR("%s: host channel allocation failed\n", + __func__); + dwc_otg_hcd_free(hcd); + goto out; + } + channel->hc_num = i; + hcd->hc_ptr_array[i] = channel; +#ifdef DEBUG + hcd->core_if->hc_xfer_timer[i] = + DWC_TIMER_ALLOC("hc timer", hc_xfer_timeout, + &hcd->core_if->hc_xfer_info[i]); +#endif + DWC_DEBUGPL(DBG_HCDV, "HCD Added channel #%d, hc=%p\n", i, + channel); + } + + if (fiq_enable) { + hcd->fiq_state = DWC_ALLOC(sizeof(struct fiq_state) + (sizeof(struct fiq_channel_state) * num_channels)); + if (!hcd->fiq_state) { + retval = -DWC_E_NO_MEMORY; + DWC_ERROR("%s: cannot allocate fiq_state structure\n", __func__); + dwc_otg_hcd_free(hcd); + goto out; + } + DWC_MEMSET(hcd->fiq_state, 0, (sizeof(struct fiq_state) + (sizeof(struct fiq_channel_state) * num_channels))); + + for (i = 0; i < num_channels; i++) { + hcd->fiq_state->channel[i].fsm = FIQ_PASSTHROUGH; + } + hcd->fiq_state->dummy_send = DWC_ALLOC_ATOMIC(16); + + hcd->fiq_stack = DWC_ALLOC(sizeof(struct fiq_stack)); + if (!hcd->fiq_stack) { + retval = -DWC_E_NO_MEMORY; + DWC_ERROR("%s: cannot allocate fiq_stack structure\n", __func__); + dwc_otg_hcd_free(hcd); + goto out; + } + hcd->fiq_stack->magic1 = 0xDEADBEEF; + hcd->fiq_stack->magic2 = 0xD00DFEED; + hcd->fiq_state->gintmsk_saved.d32 = ~0; + hcd->fiq_state->haintmsk_saved.b2.chint = ~0; + + /* This bit is terrible and uses no API, but necessary. The FIQ has no concept of DMA pools + * (and if it did, would be a lot slower). This allocates a chunk of memory (~9kiB for 8 host channels) + * for use as transaction bounce buffers in a 2-D array. Our access into this chunk is done by some + * moderately readable array casts. + */ + hcd->fiq_dmab = DWC_DMA_ALLOC(dev, (sizeof(struct fiq_dma_channel) * num_channels), &hcd->fiq_state->dma_base); + DWC_WARN("FIQ DMA bounce buffers: virt = 0x%08x dma = 0x%08x len=%d", + (unsigned int)hcd->fiq_dmab, (unsigned int)hcd->fiq_state->dma_base, + sizeof(struct fiq_dma_channel) * num_channels); + + DWC_MEMSET(hcd->fiq_dmab, 0x6b, 9024); + + /* pointer for debug in fiq_print */ + hcd->fiq_state->fiq_dmab = hcd->fiq_dmab; + if (fiq_fsm_enable) { + int i; + for (i=0; i < hcd->core_if->core_params->host_channels; i++) { + dwc_otg_cleanup_fiq_channel(hcd, i); + } + DWC_PRINTF("FIQ FSM acceleration enabled for :\n%s%s%s%s", + (fiq_fsm_mask & 0x1) ? "Non-periodic Split Transactions\n" : "", + (fiq_fsm_mask & 0x2) ? "Periodic Split Transactions\n" : "", + (fiq_fsm_mask & 0x4) ? "High-Speed Isochronous Endpoints\n" : "", + (fiq_fsm_mask & 0x8) ? "Interrupt/Control Split Transaction hack enabled\n" : ""); + } + } + + /* Initialize the Connection timeout timer. */ + hcd->conn_timer = DWC_TIMER_ALLOC("Connection timer", + dwc_otg_hcd_connect_timeout, 0); + + printk(KERN_DEBUG "dwc_otg: Microframe scheduler %s\n", microframe_schedule ? "enabled":"disabled"); + if (microframe_schedule) + init_hcd_usecs(hcd); + + /* Initialize reset tasklet. */ + hcd->reset_tasklet = DWC_TASK_ALLOC("reset_tasklet", reset_tasklet_func, hcd); + + hcd->completion_tasklet = DWC_TASK_ALLOC("completion_tasklet", + completion_tasklet_func, hcd); +#ifdef DWC_DEV_SRPCAP + if (hcd->core_if->power_down == 2) { + /* Initialize Power on timer for Host power up in case hibernation */ + hcd->core_if->pwron_timer = DWC_TIMER_ALLOC("PWRON TIMER", + dwc_otg_hcd_power_up, core_if); + } +#endif + + /* + * Allocate space for storing data on status transactions. Normally no + * data is sent, but this space acts as a bit bucket. This must be + * done after usb_add_hcd since that function allocates the DMA buffer + * pool. + */ + if (hcd->core_if->dma_enable) { + hcd->status_buf = + DWC_DMA_ALLOC(dev, DWC_OTG_HCD_STATUS_BUF_SIZE, + &hcd->status_buf_dma); + } else { + hcd->status_buf = DWC_ALLOC(DWC_OTG_HCD_STATUS_BUF_SIZE); + } + if (!hcd->status_buf) { + retval = -DWC_E_NO_MEMORY; + DWC_ERROR("%s: status_buf allocation failed\n", __func__); + dwc_otg_hcd_free(hcd); + goto out; + } + + hcd->otg_port = 1; + hcd->frame_list = NULL; + hcd->frame_list_dma = 0; + hcd->periodic_qh_count = 0; + + DWC_MEMSET(hcd->hub_port, 0, sizeof(hcd->hub_port)); +#ifdef FIQ_DEBUG + DWC_MEMSET(hcd->hub_port_alloc, -1, sizeof(hcd->hub_port_alloc)); +#endif + +out: + return retval; +} + +void dwc_otg_hcd_remove(dwc_otg_hcd_t * hcd) +{ + /* Turn off all host-specific interrupts. */ + dwc_otg_disable_host_interrupts(hcd->core_if); + + dwc_otg_hcd_free(hcd); +} + +/** + * Initializes dynamic portions of the DWC_otg HCD state. + */ +static void dwc_otg_hcd_reinit(dwc_otg_hcd_t * hcd) +{ + int num_channels; + int i; + dwc_hc_t *channel; + dwc_hc_t *channel_tmp; + + hcd->flags.d32 = 0; + + hcd->non_periodic_qh_ptr = &hcd->non_periodic_sched_active; + if (!microframe_schedule) { + hcd->non_periodic_channels = 0; + hcd->periodic_channels = 0; + } else { + hcd->available_host_channels = hcd->core_if->core_params->host_channels; + } + /* + * Put all channels in the free channel list and clean up channel + * states. + */ + DWC_CIRCLEQ_FOREACH_SAFE(channel, channel_tmp, + &hcd->free_hc_list, hc_list_entry) { + DWC_CIRCLEQ_REMOVE(&hcd->free_hc_list, channel, hc_list_entry); + } + + num_channels = hcd->core_if->core_params->host_channels; + for (i = 0; i < num_channels; i++) { + channel = hcd->hc_ptr_array[i]; + DWC_CIRCLEQ_INSERT_TAIL(&hcd->free_hc_list, channel, + hc_list_entry); + dwc_otg_hc_cleanup(hcd->core_if, channel); + } + + /* Initialize the DWC core for host mode operation. */ + dwc_otg_core_host_init(hcd->core_if); + + /* Set core_if's lock pointer to the hcd->lock */ + hcd->core_if->lock = hcd->lock; +} + +/** + * Assigns transactions from a QTD to a free host channel and initializes the + * host channel to perform the transactions. The host channel is removed from + * the free list. + * + * @param hcd The HCD state structure. + * @param qh Transactions from the first QTD for this QH are selected and + * assigned to a free host channel. + */ +static void assign_and_init_hc(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) +{ + dwc_hc_t *hc; + dwc_otg_qtd_t *qtd; + dwc_otg_hcd_urb_t *urb; + void* ptr = NULL; + uint32_t intr_enable; + unsigned long flags; + gintmsk_data_t gintmsk = { .d32 = 0, }; + struct device *dev = dwc_otg_hcd_to_dev(hcd); + + qtd = DWC_CIRCLEQ_FIRST(&qh->qtd_list); + + urb = qtd->urb; + + DWC_DEBUGPL(DBG_HCDV, "%s(%p,%p) - urb %x, actual_length %d\n", __func__, hcd, qh, (unsigned int)urb, urb->actual_length); + + if (((urb->actual_length < 0) || (urb->actual_length > urb->length)) && !dwc_otg_hcd_is_pipe_in(&urb->pipe_info)) + urb->actual_length = urb->length; + + + hc = DWC_CIRCLEQ_FIRST(&hcd->free_hc_list); + + /* Remove the host channel from the free list. */ + DWC_CIRCLEQ_REMOVE_INIT(&hcd->free_hc_list, hc, hc_list_entry); + + qh->channel = hc; + + qtd->in_process = 1; + + /* + * Use usb_pipedevice to determine device address. This address is + * 0 before the SET_ADDRESS command and the correct address afterward. + */ + hc->dev_addr = dwc_otg_hcd_get_dev_addr(&urb->pipe_info); + hc->ep_num = dwc_otg_hcd_get_ep_num(&urb->pipe_info); + hc->speed = qh->dev_speed; + hc->max_packet = dwc_max_packet(qh->maxp); + + hc->xfer_started = 0; + hc->halt_status = DWC_OTG_HC_XFER_NO_HALT_STATUS; + hc->error_state = (qtd->error_count > 0); + hc->halt_on_queue = 0; + hc->halt_pending = 0; + hc->requests = 0; + + /* + * The following values may be modified in the transfer type section + * below. The xfer_len value may be reduced when the transfer is + * started to accommodate the max widths of the XferSize and PktCnt + * fields in the HCTSIZn register. + */ + + hc->ep_is_in = (dwc_otg_hcd_is_pipe_in(&urb->pipe_info) != 0); + if (hc->ep_is_in) { + hc->do_ping = 0; + } else { + hc->do_ping = qh->ping_state; + } + + hc->data_pid_start = qh->data_toggle; + hc->multi_count = 1; + + if (hcd->core_if->dma_enable) { + hc->xfer_buff = (uint8_t *) urb->dma + urb->actual_length; + + /* For non-dword aligned case */ + if (((unsigned long)hc->xfer_buff & 0x3) + && !hcd->core_if->dma_desc_enable) { + ptr = (uint8_t *) urb->buf + urb->actual_length; + } + } else { + hc->xfer_buff = (uint8_t *) urb->buf + urb->actual_length; + } + hc->xfer_len = urb->length - urb->actual_length; + hc->xfer_count = 0; + + /* + * Set the split attributes + */ + hc->do_split = 0; + if (qh->do_split) { + uint32_t hub_addr, port_addr; + hc->do_split = 1; + hc->xact_pos = qtd->isoc_split_pos; + /* We don't need to do complete splits anymore */ +// if(fiq_fsm_enable) + if (0) + hc->complete_split = qtd->complete_split = 0; + else + hc->complete_split = qtd->complete_split; + + hcd->fops->hub_info(hcd, urb->priv, &hub_addr, &port_addr); + hc->hub_addr = (uint8_t) hub_addr; + hc->port_addr = (uint8_t) port_addr; + } + + switch (dwc_otg_hcd_get_pipe_type(&urb->pipe_info)) { + case UE_CONTROL: + hc->ep_type = DWC_OTG_EP_TYPE_CONTROL; + switch (qtd->control_phase) { + case DWC_OTG_CONTROL_SETUP: + DWC_DEBUGPL(DBG_HCDV, " Control setup transaction\n"); + hc->do_ping = 0; + hc->ep_is_in = 0; + hc->data_pid_start = DWC_OTG_HC_PID_SETUP; + if (hcd->core_if->dma_enable) { + hc->xfer_buff = (uint8_t *) urb->setup_dma; + } else { + hc->xfer_buff = (uint8_t *) urb->setup_packet; + } + hc->xfer_len = 8; + ptr = NULL; + break; + case DWC_OTG_CONTROL_DATA: + DWC_DEBUGPL(DBG_HCDV, " Control data transaction\n"); + hc->data_pid_start = qtd->data_toggle; + break; + case DWC_OTG_CONTROL_STATUS: + /* + * Direction is opposite of data direction or IN if no + * data. + */ + DWC_DEBUGPL(DBG_HCDV, " Control status transaction\n"); + if (urb->length == 0) { + hc->ep_is_in = 1; + } else { + hc->ep_is_in = + dwc_otg_hcd_is_pipe_out(&urb->pipe_info); + } + if (hc->ep_is_in) { + hc->do_ping = 0; + } + + hc->data_pid_start = DWC_OTG_HC_PID_DATA1; + + hc->xfer_len = 0; + if (hcd->core_if->dma_enable) { + hc->xfer_buff = (uint8_t *) hcd->status_buf_dma; + } else { + hc->xfer_buff = (uint8_t *) hcd->status_buf; + } + ptr = NULL; + break; + } + break; + case UE_BULK: + hc->ep_type = DWC_OTG_EP_TYPE_BULK; + break; + case UE_INTERRUPT: + hc->ep_type = DWC_OTG_EP_TYPE_INTR; + break; + case UE_ISOCHRONOUS: + { + struct dwc_otg_hcd_iso_packet_desc *frame_desc; + + hc->ep_type = DWC_OTG_EP_TYPE_ISOC; + + if (hcd->core_if->dma_desc_enable) + break; + + frame_desc = &urb->iso_descs[qtd->isoc_frame_index]; + + frame_desc->status = 0; + + if (hcd->core_if->dma_enable) { + hc->xfer_buff = (uint8_t *) urb->dma; + } else { + hc->xfer_buff = (uint8_t *) urb->buf; + } + hc->xfer_buff += + frame_desc->offset + qtd->isoc_split_offset; + hc->xfer_len = + frame_desc->length - qtd->isoc_split_offset; + + /* For non-dword aligned buffers */ + if (((unsigned long)hc->xfer_buff & 0x3) + && hcd->core_if->dma_enable) { + ptr = + (uint8_t *) urb->buf + frame_desc->offset + + qtd->isoc_split_offset; + } else + ptr = NULL; + + if (hc->xact_pos == DWC_HCSPLIT_XACTPOS_ALL) { + if (hc->xfer_len <= 188) { + hc->xact_pos = DWC_HCSPLIT_XACTPOS_ALL; + } else { + hc->xact_pos = + DWC_HCSPLIT_XACTPOS_BEGIN; + } + } + } + break; + } + /* non DWORD-aligned buffer case */ + if (ptr) { + uint32_t buf_size; + if (hc->ep_type != DWC_OTG_EP_TYPE_ISOC) { + buf_size = hcd->core_if->core_params->max_transfer_size; + } else { + buf_size = 4096; + } + if (!qh->dw_align_buf) { + qh->dw_align_buf = DWC_DMA_ALLOC_ATOMIC(dev, buf_size, + &qh->dw_align_buf_dma); + if (!qh->dw_align_buf) { + DWC_ERROR + ("%s: Failed to allocate memory to handle " + "non-dword aligned buffer case\n", + __func__); + return; + } + } + if (!hc->ep_is_in) { + dwc_memcpy(qh->dw_align_buf, ptr, hc->xfer_len); + } + hc->align_buff = qh->dw_align_buf_dma; + } else { + hc->align_buff = 0; + } + + if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || + hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { + /* + * This value may be modified when the transfer is started to + * reflect the actual transfer length. + */ + hc->multi_count = dwc_hb_mult(qh->maxp); + } + + if (hcd->core_if->dma_desc_enable) + hc->desc_list_addr = qh->desc_list_dma; + + dwc_otg_hc_init(hcd->core_if, hc); + + local_irq_save(flags); + + if (fiq_enable) { + local_fiq_disable(); + fiq_fsm_spin_lock(&hcd->fiq_state->lock); + } + + /* Enable the top level host channel interrupt. */ + intr_enable = (1 << hc->hc_num); + DWC_MODIFY_REG32(&hcd->core_if->host_if->host_global_regs->haintmsk, 0, intr_enable); + + /* Make sure host channel interrupts are enabled. */ + gintmsk.b.hcintr = 1; + DWC_MODIFY_REG32(&hcd->core_if->core_global_regs->gintmsk, 0, gintmsk.d32); + + if (fiq_enable) { + fiq_fsm_spin_unlock(&hcd->fiq_state->lock); + local_fiq_enable(); + } + + local_irq_restore(flags); + hc->qh = qh; +} + + +/** + * fiq_fsm_transaction_suitable() - Test a QH for compatibility with the FIQ + * @qh: pointer to the endpoint's queue head + * + * Transaction start/end control flow is grafted onto the existing dwc_otg + * mechanisms, to avoid spaghettifying the functions more than they already are. + * This function's eligibility check is altered by debug parameter. + * + * Returns: 0 for unsuitable, 1 implies the FIQ can be enabled for this transaction. + */ + +int fiq_fsm_transaction_suitable(dwc_otg_qh_t *qh) +{ + if (qh->do_split) { + switch (qh->ep_type) { + case UE_CONTROL: + case UE_BULK: + if (fiq_fsm_mask & (1 << 0)) + return 1; + break; + case UE_INTERRUPT: + case UE_ISOCHRONOUS: + if (fiq_fsm_mask & (1 << 1)) + return 1; + break; + default: + break; + } + } else if (qh->ep_type == UE_ISOCHRONOUS) { + if (fiq_fsm_mask & (1 << 2)) { + /* HS ISOCH support. We test for compatibility: + * - DWORD aligned buffers + * - Must be at least 2 transfers (otherwise pointless to use the FIQ) + * If yes, then the fsm enqueue function will handle the state machine setup. + */ + dwc_otg_qtd_t *qtd = DWC_CIRCLEQ_FIRST(&qh->qtd_list); + dwc_otg_hcd_urb_t *urb = qtd->urb; + struct dwc_otg_hcd_iso_packet_desc (*iso_descs)[0] = &urb->iso_descs; + int nr_iso_frames = urb->packet_count; + int i; + uint32_t ptr; + + if (nr_iso_frames < 2) + return 0; + for (i = 0; i < nr_iso_frames; i++) { + ptr = urb->dma + iso_descs[i]->offset; + if (ptr & 0x3) { + printk_ratelimited("%s: Non-Dword aligned isochronous frame offset." + " Cannot queue FIQ-accelerated transfer to device %d endpoint %d\n", + __FUNCTION__, qh->channel->dev_addr, qh->channel->ep_num); + return 0; + } + } + return 1; + } + } + return 0; +} + +/** + * fiq_fsm_setup_periodic_dma() - Set up DMA bounce buffers + * @hcd: Pointer to the dwc_otg_hcd struct + * @qh: Pointer to the endpoint's queue head + * + * Periodic split transactions are transmitted modulo 188 bytes. + * This necessitates slicing data up into buckets for isochronous out + * and fixing up the DMA address for all IN transfers. + * + * Returns 1 if the DMA bounce buffers have been used, 0 if the default + * HC buffer has been used. + */ +int fiq_fsm_setup_periodic_dma(dwc_otg_hcd_t *hcd, struct fiq_channel_state *st, dwc_otg_qh_t *qh) + { + int frame_length, i = 0; + uint8_t *ptr = NULL; + dwc_hc_t *hc = qh->channel; + struct fiq_dma_blob *blob; + struct dwc_otg_hcd_iso_packet_desc *frame_desc; + + for (i = 0; i < 6; i++) { + st->dma_info.slot_len[i] = 255; + } + st->dma_info.index = 0; + i = 0; + if (hc->ep_is_in) { + /* + * Set dma_regs to bounce buffer. FIQ will update the + * state depending on transaction progress. + */ + blob = (struct fiq_dma_blob *) hcd->fiq_state->dma_base; + st->hcdma_copy.d32 = (uint32_t) &blob->channel[hc->hc_num].index[0].buf[0]; + /* Calculate the max number of CSPLITS such that the FIQ can time out + * a transaction if it fails. + */ + frame_length = st->hcchar_copy.b.mps; + do { + i++; + frame_length -= 188; + } while (frame_length >= 0); + st->nrpackets = i; + return 1; + } else { + if (qh->ep_type == UE_ISOCHRONOUS) { + + dwc_otg_qtd_t *qtd = DWC_CIRCLEQ_FIRST(&qh->qtd_list); + + frame_desc = &qtd->urb->iso_descs[qtd->isoc_frame_index]; + frame_length = frame_desc->length; + + /* Virtual address for bounce buffers */ + blob = hcd->fiq_dmab; + + ptr = qtd->urb->buf + frame_desc->offset; + if (frame_length == 0) { + /* + * for isochronous transactions, we must still transmit a packet + * even if the length is zero. + */ + st->dma_info.slot_len[0] = 0; + st->nrpackets = 1; + } else { + do { + if (frame_length <= 188) { + dwc_memcpy(&blob->channel[hc->hc_num].index[i].buf[0], ptr, frame_length); + st->dma_info.slot_len[i] = frame_length; + ptr += frame_length; + } else { + dwc_memcpy(&blob->channel[hc->hc_num].index[i].buf[0], ptr, 188); + st->dma_info.slot_len[i] = 188; + ptr += 188; + } + i++; + frame_length -= 188; + } while (frame_length > 0); + st->nrpackets = i; + } + ptr = qtd->urb->buf + frame_desc->offset; + /* Point the HC at the DMA address of the bounce buffers */ + blob = (struct fiq_dma_blob *) hcd->fiq_state->dma_base; + st->hcdma_copy.d32 = (uint32_t) &blob->channel[hc->hc_num].index[0].buf[0]; + + /* fixup xfersize to the actual packet size */ + st->hctsiz_copy.b.pid = 0; + st->hctsiz_copy.b.xfersize = st->dma_info.slot_len[0]; + return 1; + } else { + /* For interrupt, single OUT packet required, goes in the SSPLIT from hc_buff. */ + return 0; + } + } +} + +/* + * Pushing a periodic request into the queue near the EOF1 point + * in a microframe causes erroneous behaviour (frmovrun) interrupt. + * Usually, the request goes out on the bus causing a transfer but + * the core does not transfer the data to memory. + * This guard interval (in number of 60MHz clocks) is required which + * must cater for CPU latency between reading the value and enabling + * the channel. + */ +#define PERIODIC_FRREM_BACKOFF 1000 + +int fiq_fsm_queue_isoc_transaction(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) +{ + dwc_hc_t *hc = qh->channel; + dwc_otg_hc_regs_t *hc_regs = hcd->core_if->host_if->hc_regs[hc->hc_num]; + dwc_otg_qtd_t *qtd = DWC_CIRCLEQ_FIRST(&qh->qtd_list); + int frame; + struct fiq_channel_state *st = &hcd->fiq_state->channel[hc->hc_num]; + int xfer_len, nrpackets; + hcdma_data_t hcdma; + hfnum_data_t hfnum; + + if (st->fsm != FIQ_PASSTHROUGH) + return 0; + + st->nr_errors = 0; + + st->hcchar_copy.d32 = 0; + st->hcchar_copy.b.mps = hc->max_packet; + st->hcchar_copy.b.epdir = hc->ep_is_in; + st->hcchar_copy.b.devaddr = hc->dev_addr; + st->hcchar_copy.b.epnum = hc->ep_num; + st->hcchar_copy.b.eptype = hc->ep_type; + + st->hcintmsk_copy.b.chhltd = 1; + + frame = dwc_otg_hcd_get_frame_number(hcd); + st->hcchar_copy.b.oddfrm = (frame & 0x1) ? 0 : 1; + + st->hcchar_copy.b.lspddev = 0; + /* Enable the channel later as a final register write. */ + + st->hcsplt_copy.d32 = 0; + + st->hs_isoc_info.iso_desc = (struct dwc_otg_hcd_iso_packet_desc *) &qtd->urb->iso_descs; + st->hs_isoc_info.nrframes = qtd->urb->packet_count; + /* grab the next DMA address offset from the array */ + st->hcdma_copy.d32 = qtd->urb->dma; + hcdma.d32 = st->hcdma_copy.d32 + st->hs_isoc_info.iso_desc[0].offset; + + /* We need to set multi_count. This is a bit tricky - has to be set per-transaction as + * the core needs to be told to send the correct number. Caution: for IN transfers, + * this is always set to the maximum size of the endpoint. */ + xfer_len = st->hs_isoc_info.iso_desc[0].length; + nrpackets = (xfer_len + st->hcchar_copy.b.mps - 1) / st->hcchar_copy.b.mps; + if (nrpackets == 0) + nrpackets = 1; + st->hcchar_copy.b.multicnt = nrpackets; + st->hctsiz_copy.b.pktcnt = nrpackets; + + /* Initial PID also needs to be set */ + if (st->hcchar_copy.b.epdir == 0) { + st->hctsiz_copy.b.xfersize = xfer_len; + switch (st->hcchar_copy.b.multicnt) { + case 1: + st->hctsiz_copy.b.pid = DWC_PID_DATA0; + break; + case 2: + case 3: + st->hctsiz_copy.b.pid = DWC_PID_MDATA; + break; + } + + } else { + st->hctsiz_copy.b.xfersize = nrpackets * st->hcchar_copy.b.mps; + switch (st->hcchar_copy.b.multicnt) { + case 1: + st->hctsiz_copy.b.pid = DWC_PID_DATA0; + break; + case 2: + st->hctsiz_copy.b.pid = DWC_PID_DATA1; + break; + case 3: + st->hctsiz_copy.b.pid = DWC_PID_DATA2; + break; + } + } + + st->hs_isoc_info.stride = qh->interval; + st->uframe_sleeps = 0; + + fiq_print(FIQDBG_INT, hcd->fiq_state, "FSMQ %01d ", hc->hc_num); + fiq_print(FIQDBG_INT, hcd->fiq_state, "%08x", st->hcchar_copy.d32); + fiq_print(FIQDBG_INT, hcd->fiq_state, "%08x", st->hctsiz_copy.d32); + fiq_print(FIQDBG_INT, hcd->fiq_state, "%08x", st->hcdma_copy.d32); + hfnum.d32 = DWC_READ_REG32(&hcd->core_if->host_if->host_global_regs->hfnum); + local_fiq_disable(); + fiq_fsm_spin_lock(&hcd->fiq_state->lock); + DWC_WRITE_REG32(&hc_regs->hctsiz, st->hctsiz_copy.d32); + DWC_WRITE_REG32(&hc_regs->hcsplt, st->hcsplt_copy.d32); + DWC_WRITE_REG32(&hc_regs->hcdma, st->hcdma_copy.d32); + DWC_WRITE_REG32(&hc_regs->hcchar, st->hcchar_copy.d32); + DWC_WRITE_REG32(&hc_regs->hcintmsk, st->hcintmsk_copy.d32); + if (hfnum.b.frrem < PERIODIC_FRREM_BACKOFF) { + /* Prevent queueing near EOF1. Bad things happen if a periodic + * split transaction is queued very close to EOF. SOF interrupt handler + * will wake this channel at the next interrupt. + */ + st->fsm = FIQ_HS_ISOC_SLEEPING; + st->uframe_sleeps = 1; + } else { + st->fsm = FIQ_HS_ISOC_TURBO; + st->hcchar_copy.b.chen = 1; + DWC_WRITE_REG32(&hc_regs->hcchar, st->hcchar_copy.d32); + } + mb(); + st->hcchar_copy.b.chen = 0; + fiq_fsm_spin_unlock(&hcd->fiq_state->lock); + local_fiq_enable(); + return 0; +} + + +/** + * fiq_fsm_queue_split_transaction() - Set up a host channel and FIQ state + * @hcd: Pointer to the dwc_otg_hcd struct + * @qh: Pointer to the endpoint's queue head + * + * This overrides the dwc_otg driver's normal method of queueing a transaction. + * Called from dwc_otg_hcd_queue_transactions(), this performs specific setup + * for the nominated host channel. + * + * For periodic transfers, it also peeks at the FIQ state to see if an immediate + * start is possible. If not, then the FIQ is left to start the transfer. + */ +int fiq_fsm_queue_split_transaction(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) +{ + int start_immediate = 1, i; + hfnum_data_t hfnum; + dwc_hc_t *hc = qh->channel; + dwc_otg_hc_regs_t *hc_regs = hcd->core_if->host_if->hc_regs[hc->hc_num]; + /* Program HC registers, setup FIQ_state, examine FIQ if periodic, start transfer (not if uframe 5) */ + int hub_addr, port_addr, frame, uframe; + struct fiq_channel_state *st = &hcd->fiq_state->channel[hc->hc_num]; + + if (st->fsm != FIQ_PASSTHROUGH) + return 0; + st->nr_errors = 0; + + st->hcchar_copy.d32 = 0; + st->hcchar_copy.b.mps = hc->max_packet; + st->hcchar_copy.b.epdir = hc->ep_is_in; + st->hcchar_copy.b.devaddr = hc->dev_addr; + st->hcchar_copy.b.epnum = hc->ep_num; + st->hcchar_copy.b.eptype = hc->ep_type; + if (hc->ep_type & 0x1) { + if (hc->ep_is_in) + st->hcchar_copy.b.multicnt = 3; + else + /* Docs say set this to 1, but driver sets to 0! */ + st->hcchar_copy.b.multicnt = 0; + } else { + st->hcchar_copy.b.multicnt = 1; + st->hcchar_copy.b.oddfrm = 0; + } + st->hcchar_copy.b.lspddev = (hc->speed == DWC_OTG_EP_SPEED_LOW) ? 1 : 0; + /* Enable the channel later as a final register write. */ + + st->hcsplt_copy.d32 = 0; + if(qh->do_split) { + hcd->fops->hub_info(hcd, DWC_CIRCLEQ_FIRST(&qh->qtd_list)->urb->priv, &hub_addr, &port_addr); + st->hcsplt_copy.b.compsplt = 0; + st->hcsplt_copy.b.spltena = 1; + // XACTPOS is for isoc-out only but needs initialising anyway. + st->hcsplt_copy.b.xactpos = ISOC_XACTPOS_ALL; + if((qh->ep_type == DWC_OTG_EP_TYPE_ISOC) && (!qh->ep_is_in)) { + /* For packetsize 0 < L < 188, ISOC_XACTPOS_ALL. + * for longer than this, ISOC_XACTPOS_BEGIN and the FIQ + * will update as necessary. + */ + if (hc->xfer_len > 188) { + st->hcsplt_copy.b.xactpos = ISOC_XACTPOS_BEGIN; + } + } + st->hcsplt_copy.b.hubaddr = (uint8_t) hub_addr; + st->hcsplt_copy.b.prtaddr = (uint8_t) port_addr; + st->hub_addr = hub_addr; + st->port_addr = port_addr; + } + + st->hctsiz_copy.d32 = 0; + st->hctsiz_copy.b.dopng = 0; + st->hctsiz_copy.b.pid = hc->data_pid_start; + + if (hc->ep_is_in || (hc->xfer_len > hc->max_packet)) { + hc->xfer_len = hc->max_packet; + } else if (!hc->ep_is_in && (hc->xfer_len > 188)) { + hc->xfer_len = 188; + } + st->hctsiz_copy.b.xfersize = hc->xfer_len; + + st->hctsiz_copy.b.pktcnt = 1; + + if (hc->ep_type & 0x1) { + /* + * For potentially multi-packet transfers, must use the DMA bounce buffers. For IN transfers, + * the DMA address is the address of the first 188byte slot buffer in the bounce buffer array. + * For multi-packet OUT transfers, we need to copy the data into the bounce buffer array so the FIQ can punt + * the right address out as necessary. hc->xfer_buff and hc->xfer_len have already been set + * in assign_and_init_hc(), but this is for the eventual transaction completion only. The FIQ + * must not touch internal driver state. + */ + if(!fiq_fsm_setup_periodic_dma(hcd, st, qh)) { + if (hc->align_buff) { + st->hcdma_copy.d32 = hc->align_buff; + } else { + st->hcdma_copy.d32 = ((unsigned long) hc->xfer_buff & 0xFFFFFFFF); + } + } + } else { + if (hc->align_buff) { + st->hcdma_copy.d32 = hc->align_buff; + } else { + st->hcdma_copy.d32 = ((unsigned long) hc->xfer_buff & 0xFFFFFFFF); + } + } + /* The FIQ depends upon no other interrupts being enabled except channel halt. + * Fixup channel interrupt mask. */ + st->hcintmsk_copy.d32 = 0; + st->hcintmsk_copy.b.chhltd = 1; + st->hcintmsk_copy.b.ahberr = 1; + + /* Hack courtesy of FreeBSD: apparently forcing Interrupt Split transactions + * as Control puts the transfer into the non-periodic request queue and the + * non-periodic handler in the hub. Makes things lots easier. + */ + if ((fiq_fsm_mask & 0x8) && hc->ep_type == UE_INTERRUPT) { + st->hcchar_copy.b.multicnt = 0; + st->hcchar_copy.b.oddfrm = 0; + st->hcchar_copy.b.eptype = UE_CONTROL; + if (hc->align_buff) { + st->hcdma_copy.d32 = hc->align_buff; + } else { + st->hcdma_copy.d32 = ((unsigned long) hc->xfer_buff & 0xFFFFFFFF); + } + } + DWC_WRITE_REG32(&hc_regs->hcdma, st->hcdma_copy.d32); + DWC_WRITE_REG32(&hc_regs->hctsiz, st->hctsiz_copy.d32); + DWC_WRITE_REG32(&hc_regs->hcsplt, st->hcsplt_copy.d32); + DWC_WRITE_REG32(&hc_regs->hcchar, st->hcchar_copy.d32); + DWC_WRITE_REG32(&hc_regs->hcintmsk, st->hcintmsk_copy.d32); + + local_fiq_disable(); + fiq_fsm_spin_lock(&hcd->fiq_state->lock); + + if (hc->ep_type & 0x1) { + hfnum.d32 = DWC_READ_REG32(&hcd->core_if->host_if->host_global_regs->hfnum); + frame = (hfnum.b.frnum & ~0x7) >> 3; + uframe = hfnum.b.frnum & 0x7; + if (hfnum.b.frrem < PERIODIC_FRREM_BACKOFF) { + /* Prevent queueing near EOF1. Bad things happen if a periodic + * split transaction is queued very close to EOF. + */ + start_immediate = 0; + } else if (uframe == 5) { + start_immediate = 0; + } else if (hc->ep_type == UE_ISOCHRONOUS && !hc->ep_is_in) { + start_immediate = 0; + } else if (hc->ep_is_in && fiq_fsm_too_late(hcd->fiq_state, hc->hc_num)) { + start_immediate = 0; + } else { + /* Search through all host channels to determine if a transaction + * is currently in progress */ + for (i = 0; i < hcd->core_if->core_params->host_channels; i++) { + if (i == hc->hc_num || hcd->fiq_state->channel[i].fsm == FIQ_PASSTHROUGH) + continue; + switch (hcd->fiq_state->channel[i].fsm) { + /* TT is reserved for channels that are in the middle of a periodic + * split transaction. + */ + case FIQ_PER_SSPLIT_STARTED: + case FIQ_PER_CSPLIT_WAIT: + case FIQ_PER_CSPLIT_NYET1: + case FIQ_PER_CSPLIT_POLL: + case FIQ_PER_ISO_OUT_ACTIVE: + case FIQ_PER_ISO_OUT_LAST: + if (hcd->fiq_state->channel[i].hub_addr == hub_addr && + hcd->fiq_state->channel[i].port_addr == port_addr) { + start_immediate = 0; + } + break; + default: + break; + } + if (!start_immediate) + break; + } + } + } + if ((fiq_fsm_mask & 0x8) && hc->ep_type == UE_INTERRUPT) + start_immediate = 1; + + fiq_print(FIQDBG_INT, hcd->fiq_state, "FSMQ %01d %01d", hc->hc_num, start_immediate); + fiq_print(FIQDBG_INT, hcd->fiq_state, "%08d", hfnum.b.frrem); + //fiq_print(FIQDBG_INT, hcd->fiq_state, "H:%02dP:%02d", hub_addr, port_addr); + //fiq_print(FIQDBG_INT, hcd->fiq_state, "%08x", st->hctsiz_copy.d32); + //fiq_print(FIQDBG_INT, hcd->fiq_state, "%08x", st->hcdma_copy.d32); + switch (hc->ep_type) { + case UE_CONTROL: + case UE_BULK: + st->fsm = FIQ_NP_SSPLIT_STARTED; + break; + case UE_ISOCHRONOUS: + if (hc->ep_is_in) { + if (start_immediate) { + st->fsm = FIQ_PER_SSPLIT_STARTED; + } else { + st->fsm = FIQ_PER_SSPLIT_QUEUED; + } + } else { + if (start_immediate) { + /* Single-isoc OUT packets don't require FIQ involvement */ + if (st->nrpackets == 1) { + st->fsm = FIQ_PER_ISO_OUT_LAST; + } else { + st->fsm = FIQ_PER_ISO_OUT_ACTIVE; + } + } else { + st->fsm = FIQ_PER_ISO_OUT_PENDING; + } + } + break; + case UE_INTERRUPT: + if (fiq_fsm_mask & 0x8) { + st->fsm = FIQ_NP_SSPLIT_STARTED; + } else if (start_immediate) { + st->fsm = FIQ_PER_SSPLIT_STARTED; + } else { + st->fsm = FIQ_PER_SSPLIT_QUEUED; + } + default: + break; + } + if (start_immediate) { + /* Set the oddfrm bit as close as possible to actual queueing */ + frame = dwc_otg_hcd_get_frame_number(hcd); + st->expected_uframe = (frame + 1) & 0x3FFF; + st->hcchar_copy.b.oddfrm = (frame & 0x1) ? 0 : 1; + st->hcchar_copy.b.chen = 1; + DWC_WRITE_REG32(&hc_regs->hcchar, st->hcchar_copy.d32); + } + mb(); + fiq_fsm_spin_unlock(&hcd->fiq_state->lock); + local_fiq_enable(); + return 0; +} + + +/** + * This function selects transactions from the HCD transfer schedule and + * assigns them to available host channels. It is called from HCD interrupt + * handler functions. + * + * @param hcd The HCD state structure. + * + * @return The types of new transactions that were assigned to host channels. + */ +dwc_otg_transaction_type_e dwc_otg_hcd_select_transactions(dwc_otg_hcd_t * hcd) +{ + dwc_list_link_t *qh_ptr; + dwc_otg_qh_t *qh; + int num_channels; + dwc_irqflags_t flags; + dwc_spinlock_t *channel_lock = hcd->channel_lock; + dwc_otg_transaction_type_e ret_val = DWC_OTG_TRANSACTION_NONE; + +#ifdef DEBUG_HOST_CHANNELS + last_sel_trans_num_per_scheduled = 0; + last_sel_trans_num_nonper_scheduled = 0; + last_sel_trans_num_avail_hc_at_start = hcd->available_host_channels; +#endif /* DEBUG_HOST_CHANNELS */ + + /* Process entries in the periodic ready list. */ + qh_ptr = DWC_LIST_FIRST(&hcd->periodic_sched_ready); + + while (qh_ptr != &hcd->periodic_sched_ready && + !DWC_CIRCLEQ_EMPTY(&hcd->free_hc_list)) { + + qh = DWC_LIST_ENTRY(qh_ptr, dwc_otg_qh_t, qh_list_entry); + + if (microframe_schedule) { + // Make sure we leave one channel for non periodic transactions. + DWC_SPINLOCK_IRQSAVE(channel_lock, &flags); + if (hcd->available_host_channels <= 1) { + DWC_SPINUNLOCK_IRQRESTORE(channel_lock, flags); + break; + } + hcd->available_host_channels--; + DWC_SPINUNLOCK_IRQRESTORE(channel_lock, flags); +#ifdef DEBUG_HOST_CHANNELS + last_sel_trans_num_per_scheduled++; +#endif /* DEBUG_HOST_CHANNELS */ + } + qh = DWC_LIST_ENTRY(qh_ptr, dwc_otg_qh_t, qh_list_entry); + assign_and_init_hc(hcd, qh); + + /* + * Move the QH from the periodic ready schedule to the + * periodic assigned schedule. + */ + qh_ptr = DWC_LIST_NEXT(qh_ptr); + DWC_SPINLOCK_IRQSAVE(channel_lock, &flags); + DWC_LIST_MOVE_HEAD(&hcd->periodic_sched_assigned, + &qh->qh_list_entry); + DWC_SPINUNLOCK_IRQRESTORE(channel_lock, flags); + } + + /* + * Process entries in the inactive portion of the non-periodic + * schedule. Some free host channels may not be used if they are + * reserved for periodic transfers. + */ + qh_ptr = hcd->non_periodic_sched_inactive.next; + num_channels = hcd->core_if->core_params->host_channels; + while (qh_ptr != &hcd->non_periodic_sched_inactive && + (microframe_schedule || hcd->non_periodic_channels < + num_channels - hcd->periodic_channels) && + !DWC_CIRCLEQ_EMPTY(&hcd->free_hc_list)) { + + qh = DWC_LIST_ENTRY(qh_ptr, dwc_otg_qh_t, qh_list_entry); + /* + * Check to see if this is a NAK'd retransmit, in which case ignore for retransmission + * we hold off on bulk retransmissions to reduce NAK interrupt overhead for full-speed + * cheeky devices that just hold off using NAKs + */ + if (fiq_enable && nak_holdoff && qh->do_split) { + if (qh->nak_frame != 0xffff) { + uint16_t next_frame = dwc_frame_num_inc(qh->nak_frame, (qh->ep_type == UE_BULK) ? nak_holdoff : 8); + uint16_t frame = dwc_otg_hcd_get_frame_number(hcd); + if (dwc_frame_num_le(frame, next_frame)) { + if(dwc_frame_num_le(next_frame, hcd->fiq_state->next_sched_frame)) { + hcd->fiq_state->next_sched_frame = next_frame; + } + qh_ptr = DWC_LIST_NEXT(qh_ptr); + continue; + } else { + qh->nak_frame = 0xFFFF; + } + } + } + + if (microframe_schedule) { + DWC_SPINLOCK_IRQSAVE(channel_lock, &flags); + if (hcd->available_host_channels < 1) { + DWC_SPINUNLOCK_IRQRESTORE(channel_lock, flags); + break; + } + hcd->available_host_channels--; + DWC_SPINUNLOCK_IRQRESTORE(channel_lock, flags); +#ifdef DEBUG_HOST_CHANNELS + last_sel_trans_num_nonper_scheduled++; +#endif /* DEBUG_HOST_CHANNELS */ + } + + assign_and_init_hc(hcd, qh); + + /* + * Move the QH from the non-periodic inactive schedule to the + * non-periodic active schedule. + */ + qh_ptr = DWC_LIST_NEXT(qh_ptr); + DWC_SPINLOCK_IRQSAVE(channel_lock, &flags); + DWC_LIST_MOVE_HEAD(&hcd->non_periodic_sched_active, + &qh->qh_list_entry); + DWC_SPINUNLOCK_IRQRESTORE(channel_lock, flags); + + + if (!microframe_schedule) + hcd->non_periodic_channels++; + } + /* we moved a non-periodic QH to the active schedule. If the inactive queue is empty, + * stop the FIQ from kicking us. We could potentially still have elements here if we + * ran out of host channels. + */ + if (fiq_enable) { + if (DWC_LIST_EMPTY(&hcd->non_periodic_sched_inactive)) { + hcd->fiq_state->kick_np_queues = 0; + } else { + /* For each entry remaining in the NP inactive queue, + * if this a NAK'd retransmit then don't set the kick flag. + */ + if(nak_holdoff) { + DWC_LIST_FOREACH(qh_ptr, &hcd->non_periodic_sched_inactive) { + qh = DWC_LIST_ENTRY(qh_ptr, dwc_otg_qh_t, qh_list_entry); + if (qh->nak_frame == 0xFFFF) { + hcd->fiq_state->kick_np_queues = 1; + } + } + } + } + } + if(!DWC_LIST_EMPTY(&hcd->periodic_sched_assigned)) + ret_val |= DWC_OTG_TRANSACTION_PERIODIC; + + if(!DWC_LIST_EMPTY(&hcd->non_periodic_sched_active)) + ret_val |= DWC_OTG_TRANSACTION_NON_PERIODIC; + + +#ifdef DEBUG_HOST_CHANNELS + last_sel_trans_num_avail_hc_at_end = hcd->available_host_channels; +#endif /* DEBUG_HOST_CHANNELS */ + return ret_val; +} + +/** + * Attempts to queue a single transaction request for a host channel + * associated with either a periodic or non-periodic transfer. This function + * assumes that there is space available in the appropriate request queue. For + * an OUT transfer or SETUP transaction in Slave mode, it checks whether space + * is available in the appropriate Tx FIFO. + * + * @param hcd The HCD state structure. + * @param hc Host channel descriptor associated with either a periodic or + * non-periodic transfer. + * @param fifo_dwords_avail Number of DWORDs available in the periodic Tx + * FIFO for periodic transfers or the non-periodic Tx FIFO for non-periodic + * transfers. + * + * @return 1 if a request is queued and more requests may be needed to + * complete the transfer, 0 if no more requests are required for this + * transfer, -1 if there is insufficient space in the Tx FIFO. + */ +static int queue_transaction(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, uint16_t fifo_dwords_avail) +{ + int retval; + + if (hcd->core_if->dma_enable) { + if (hcd->core_if->dma_desc_enable) { + if (!hc->xfer_started + || (hc->ep_type == DWC_OTG_EP_TYPE_ISOC)) { + dwc_otg_hcd_start_xfer_ddma(hcd, hc->qh); + hc->qh->ping_state = 0; + } + } else if (!hc->xfer_started) { + if (fiq_fsm_enable && hc->error_state) { + hcd->fiq_state->channel[hc->hc_num].nr_errors = + DWC_CIRCLEQ_FIRST(&hc->qh->qtd_list)->error_count; + hcd->fiq_state->channel[hc->hc_num].fsm = + FIQ_PASSTHROUGH_ERRORSTATE; + } + dwc_otg_hc_start_transfer(hcd->core_if, hc); + hc->qh->ping_state = 0; + } + retval = 0; + } else if (hc->halt_pending) { + /* Don't queue a request if the channel has been halted. */ + retval = 0; + } else if (hc->halt_on_queue) { + dwc_otg_hc_halt(hcd->core_if, hc, hc->halt_status); + retval = 0; + } else if (hc->do_ping) { + if (!hc->xfer_started) { + dwc_otg_hc_start_transfer(hcd->core_if, hc); + } + retval = 0; + } else if (!hc->ep_is_in || hc->data_pid_start == DWC_OTG_HC_PID_SETUP) { + if ((fifo_dwords_avail * 4) >= hc->max_packet) { + if (!hc->xfer_started) { + dwc_otg_hc_start_transfer(hcd->core_if, hc); + retval = 1; + } else { + retval = + dwc_otg_hc_continue_transfer(hcd->core_if, + hc); + } + } else { + retval = -1; + } + } else { + if (!hc->xfer_started) { + dwc_otg_hc_start_transfer(hcd->core_if, hc); + retval = 1; + } else { + retval = dwc_otg_hc_continue_transfer(hcd->core_if, hc); + } + } + + return retval; +} + +/** + * Processes periodic channels for the next frame and queues transactions for + * these channels to the DWC_otg controller. After queueing transactions, the + * Periodic Tx FIFO Empty interrupt is enabled if there are more transactions + * to queue as Periodic Tx FIFO or request queue space becomes available. + * Otherwise, the Periodic Tx FIFO Empty interrupt is disabled. + */ +static void process_periodic_channels(dwc_otg_hcd_t * hcd) +{ + hptxsts_data_t tx_status; + dwc_list_link_t *qh_ptr; + dwc_otg_qh_t *qh; + int status = 0; + int no_queue_space = 0; + int no_fifo_space = 0; + + dwc_otg_host_global_regs_t *host_regs; + host_regs = hcd->core_if->host_if->host_global_regs; + + DWC_DEBUGPL(DBG_HCDV, "Queue periodic transactions\n"); +#ifdef DEBUG + tx_status.d32 = DWC_READ_REG32(&host_regs->hptxsts); + DWC_DEBUGPL(DBG_HCDV, + " P Tx Req Queue Space Avail (before queue): %d\n", + tx_status.b.ptxqspcavail); + DWC_DEBUGPL(DBG_HCDV, " P Tx FIFO Space Avail (before queue): %d\n", + tx_status.b.ptxfspcavail); +#endif + + qh_ptr = hcd->periodic_sched_assigned.next; + while (qh_ptr != &hcd->periodic_sched_assigned) { + tx_status.d32 = DWC_READ_REG32(&host_regs->hptxsts); + if (tx_status.b.ptxqspcavail == 0) { + no_queue_space = 1; + break; + } + + qh = DWC_LIST_ENTRY(qh_ptr, dwc_otg_qh_t, qh_list_entry); + + // Do not send a split start transaction any later than frame .6 + // Note, we have to schedule a periodic in .5 to make it go in .6 + if(fiq_fsm_enable && qh->do_split && ((dwc_otg_hcd_get_frame_number(hcd) + 1) & 7) > 6) + { + qh_ptr = qh_ptr->next; + hcd->fiq_state->next_sched_frame = dwc_otg_hcd_get_frame_number(hcd) | 7; + continue; + } + + if (fiq_fsm_enable && fiq_fsm_transaction_suitable(qh)) { + if (qh->do_split) + fiq_fsm_queue_split_transaction(hcd, qh); + else + fiq_fsm_queue_isoc_transaction(hcd, qh); + } else { + + /* + * Set a flag if we're queueing high-bandwidth in slave mode. + * The flag prevents any halts to get into the request queue in + * the middle of multiple high-bandwidth packets getting queued. + */ + if (!hcd->core_if->dma_enable && qh->channel->multi_count > 1) { + hcd->core_if->queuing_high_bandwidth = 1; + } + status = queue_transaction(hcd, qh->channel, + tx_status.b.ptxfspcavail); + if (status < 0) { + no_fifo_space = 1; + break; + } + } + + /* + * In Slave mode, stay on the current transfer until there is + * nothing more to do or the high-bandwidth request count is + * reached. In DMA mode, only need to queue one request. The + * controller automatically handles multiple packets for + * high-bandwidth transfers. + */ + if (hcd->core_if->dma_enable || status == 0 || + qh->channel->requests == qh->channel->multi_count) { + qh_ptr = qh_ptr->next; + /* + * Move the QH from the periodic assigned schedule to + * the periodic queued schedule. + */ + DWC_LIST_MOVE_HEAD(&hcd->periodic_sched_queued, + &qh->qh_list_entry); + + /* done queuing high bandwidth */ + hcd->core_if->queuing_high_bandwidth = 0; + } + } + + if (!hcd->core_if->dma_enable) { + dwc_otg_core_global_regs_t *global_regs; + gintmsk_data_t intr_mask = {.d32 = 0 }; + + global_regs = hcd->core_if->core_global_regs; + intr_mask.b.ptxfempty = 1; +#ifdef DEBUG + tx_status.d32 = DWC_READ_REG32(&host_regs->hptxsts); + DWC_DEBUGPL(DBG_HCDV, + " P Tx Req Queue Space Avail (after queue): %d\n", + tx_status.b.ptxqspcavail); + DWC_DEBUGPL(DBG_HCDV, + " P Tx FIFO Space Avail (after queue): %d\n", + tx_status.b.ptxfspcavail); +#endif + if (!DWC_LIST_EMPTY(&hcd->periodic_sched_assigned) || + no_queue_space || no_fifo_space) { + /* + * May need to queue more transactions as the request + * queue or Tx FIFO empties. Enable the periodic Tx + * FIFO empty interrupt. (Always use the half-empty + * level to ensure that new requests are loaded as + * soon as possible.) + */ + DWC_MODIFY_REG32(&global_regs->gintmsk, 0, + intr_mask.d32); + } else { + /* + * Disable the Tx FIFO empty interrupt since there are + * no more transactions that need to be queued right + * now. This function is called from interrupt + * handlers to queue more transactions as transfer + * states change. + */ + DWC_MODIFY_REG32(&global_regs->gintmsk, intr_mask.d32, + 0); + } + } +} + +/** + * Processes active non-periodic channels and queues transactions for these + * channels to the DWC_otg controller. After queueing transactions, the NP Tx + * FIFO Empty interrupt is enabled if there are more transactions to queue as + * NP Tx FIFO or request queue space becomes available. Otherwise, the NP Tx + * FIFO Empty interrupt is disabled. + */ +static void process_non_periodic_channels(dwc_otg_hcd_t * hcd) +{ + gnptxsts_data_t tx_status; + dwc_list_link_t *orig_qh_ptr; + dwc_otg_qh_t *qh; + int status; + int no_queue_space = 0; + int no_fifo_space = 0; + int more_to_do = 0; + + dwc_otg_core_global_regs_t *global_regs = + hcd->core_if->core_global_regs; + + DWC_DEBUGPL(DBG_HCDV, "Queue non-periodic transactions\n"); +#ifdef DEBUG + tx_status.d32 = DWC_READ_REG32(&global_regs->gnptxsts); + DWC_DEBUGPL(DBG_HCDV, + " NP Tx Req Queue Space Avail (before queue): %d\n", + tx_status.b.nptxqspcavail); + DWC_DEBUGPL(DBG_HCDV, " NP Tx FIFO Space Avail (before queue): %d\n", + tx_status.b.nptxfspcavail); +#endif + /* + * Keep track of the starting point. Skip over the start-of-list + * entry. + */ + if (hcd->non_periodic_qh_ptr == &hcd->non_periodic_sched_active) { + hcd->non_periodic_qh_ptr = hcd->non_periodic_qh_ptr->next; + } + orig_qh_ptr = hcd->non_periodic_qh_ptr; + + /* + * Process once through the active list or until no more space is + * available in the request queue or the Tx FIFO. + */ + do { + tx_status.d32 = DWC_READ_REG32(&global_regs->gnptxsts); + if (!hcd->core_if->dma_enable && tx_status.b.nptxqspcavail == 0) { + no_queue_space = 1; + break; + } + + qh = DWC_LIST_ENTRY(hcd->non_periodic_qh_ptr, dwc_otg_qh_t, + qh_list_entry); + + if(fiq_fsm_enable && fiq_fsm_transaction_suitable(qh)) { + fiq_fsm_queue_split_transaction(hcd, qh); + } else { + status = queue_transaction(hcd, qh->channel, + tx_status.b.nptxfspcavail); + + if (status > 0) { + more_to_do = 1; + } else if (status < 0) { + no_fifo_space = 1; + break; + } + } + /* Advance to next QH, skipping start-of-list entry. */ + hcd->non_periodic_qh_ptr = hcd->non_periodic_qh_ptr->next; + if (hcd->non_periodic_qh_ptr == &hcd->non_periodic_sched_active) { + hcd->non_periodic_qh_ptr = + hcd->non_periodic_qh_ptr->next; + } + + } while (hcd->non_periodic_qh_ptr != orig_qh_ptr); + + if (!hcd->core_if->dma_enable) { + gintmsk_data_t intr_mask = {.d32 = 0 }; + intr_mask.b.nptxfempty = 1; + +#ifdef DEBUG + tx_status.d32 = DWC_READ_REG32(&global_regs->gnptxsts); + DWC_DEBUGPL(DBG_HCDV, + " NP Tx Req Queue Space Avail (after queue): %d\n", + tx_status.b.nptxqspcavail); + DWC_DEBUGPL(DBG_HCDV, + " NP Tx FIFO Space Avail (after queue): %d\n", + tx_status.b.nptxfspcavail); +#endif + if (more_to_do || no_queue_space || no_fifo_space) { + /* + * May need to queue more transactions as the request + * queue or Tx FIFO empties. Enable the non-periodic + * Tx FIFO empty interrupt. (Always use the half-empty + * level to ensure that new requests are loaded as + * soon as possible.) + */ + DWC_MODIFY_REG32(&global_regs->gintmsk, 0, + intr_mask.d32); + } else { + /* + * Disable the Tx FIFO empty interrupt since there are + * no more transactions that need to be queued right + * now. This function is called from interrupt + * handlers to queue more transactions as transfer + * states change. + */ + DWC_MODIFY_REG32(&global_regs->gintmsk, intr_mask.d32, + 0); + } + } +} + +/** + * This function processes the currently active host channels and queues + * transactions for these channels to the DWC_otg controller. It is called + * from HCD interrupt handler functions. + * + * @param hcd The HCD state structure. + * @param tr_type The type(s) of transactions to queue (non-periodic, + * periodic, or both). + */ +void dwc_otg_hcd_queue_transactions(dwc_otg_hcd_t * hcd, + dwc_otg_transaction_type_e tr_type) +{ +#ifdef DEBUG_SOF + DWC_DEBUGPL(DBG_HCD, "Queue Transactions\n"); +#endif + /* Process host channels associated with periodic transfers. */ + if ((tr_type == DWC_OTG_TRANSACTION_PERIODIC || + tr_type == DWC_OTG_TRANSACTION_ALL) && + !DWC_LIST_EMPTY(&hcd->periodic_sched_assigned)) { + + process_periodic_channels(hcd); + } + + /* Process host channels associated with non-periodic transfers. */ + if (tr_type == DWC_OTG_TRANSACTION_NON_PERIODIC || + tr_type == DWC_OTG_TRANSACTION_ALL) { + if (!DWC_LIST_EMPTY(&hcd->non_periodic_sched_active)) { + process_non_periodic_channels(hcd); + } else { + /* + * Ensure NP Tx FIFO empty interrupt is disabled when + * there are no non-periodic transfers to process. + */ + gintmsk_data_t gintmsk = {.d32 = 0 }; + gintmsk.b.nptxfempty = 1; + + if (fiq_enable) { + local_fiq_disable(); + fiq_fsm_spin_lock(&hcd->fiq_state->lock); + DWC_MODIFY_REG32(&hcd->core_if->core_global_regs->gintmsk, gintmsk.d32, 0); + fiq_fsm_spin_unlock(&hcd->fiq_state->lock); + local_fiq_enable(); + } else { + DWC_MODIFY_REG32(&hcd->core_if->core_global_regs->gintmsk, gintmsk.d32, 0); + } + } + } +} + +#ifdef DWC_HS_ELECT_TST +/* + * Quick and dirty hack to implement the HS Electrical Test + * SINGLE_STEP_GET_DEVICE_DESCRIPTOR feature. + * + * This code was copied from our userspace app "hset". It sends a + * Get Device Descriptor control sequence in two parts, first the + * Setup packet by itself, followed some time later by the In and + * Ack packets. Rather than trying to figure out how to add this + * functionality to the normal driver code, we just hijack the + * hardware, using these two function to drive the hardware + * directly. + */ + +static dwc_otg_core_global_regs_t *global_regs; +static dwc_otg_host_global_regs_t *hc_global_regs; +static dwc_otg_hc_regs_t *hc_regs; +static uint32_t *data_fifo; + +static void do_setup(void) +{ + gintsts_data_t gintsts; + hctsiz_data_t hctsiz; + hcchar_data_t hcchar; + haint_data_t haint; + hcint_data_t hcint; + + /* Enable HAINTs */ + DWC_WRITE_REG32(&hc_global_regs->haintmsk, 0x0001); + + /* Enable HCINTs */ + DWC_WRITE_REG32(&hc_regs->hcintmsk, 0x04a3); + + /* Read GINTSTS */ + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); + + /* Read HAINT */ + haint.d32 = DWC_READ_REG32(&hc_global_regs->haint); + + /* Read HCINT */ + hcint.d32 = DWC_READ_REG32(&hc_regs->hcint); + + /* Read HCCHAR */ + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + + /* Clear HCINT */ + DWC_WRITE_REG32(&hc_regs->hcint, hcint.d32); + + /* Clear HAINT */ + DWC_WRITE_REG32(&hc_global_regs->haint, haint.d32); + + /* Clear GINTSTS */ + DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32); + + /* Read GINTSTS */ + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); + + /* + * Send Setup packet (Get Device Descriptor) + */ + + /* Make sure channel is disabled */ + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + if (hcchar.b.chen) { + hcchar.b.chdis = 1; +// hcchar.b.chen = 1; + DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32); + //sleep(1); + dwc_mdelay(1000); + + /* Read GINTSTS */ + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); + + /* Read HAINT */ + haint.d32 = DWC_READ_REG32(&hc_global_regs->haint); + + /* Read HCINT */ + hcint.d32 = DWC_READ_REG32(&hc_regs->hcint); + + /* Read HCCHAR */ + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + + /* Clear HCINT */ + DWC_WRITE_REG32(&hc_regs->hcint, hcint.d32); + + /* Clear HAINT */ + DWC_WRITE_REG32(&hc_global_regs->haint, haint.d32); + + /* Clear GINTSTS */ + DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32); + + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + } + + /* Set HCTSIZ */ + hctsiz.d32 = 0; + hctsiz.b.xfersize = 8; + hctsiz.b.pktcnt = 1; + hctsiz.b.pid = DWC_OTG_HC_PID_SETUP; + DWC_WRITE_REG32(&hc_regs->hctsiz, hctsiz.d32); + + /* Set HCCHAR */ + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + hcchar.b.eptype = DWC_OTG_EP_TYPE_CONTROL; + hcchar.b.epdir = 0; + hcchar.b.epnum = 0; + hcchar.b.mps = 8; + hcchar.b.chen = 1; + DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32); + + /* Fill FIFO with Setup data for Get Device Descriptor */ + data_fifo = (uint32_t *) ((char *)global_regs + 0x1000); + DWC_WRITE_REG32(data_fifo++, 0x01000680); + DWC_WRITE_REG32(data_fifo++, 0x00080000); + + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); + + /* Wait for host channel interrupt */ + do { + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); + } while (gintsts.b.hcintr == 0); + + /* Disable HCINTs */ + DWC_WRITE_REG32(&hc_regs->hcintmsk, 0x0000); + + /* Disable HAINTs */ + DWC_WRITE_REG32(&hc_global_regs->haintmsk, 0x0000); + + /* Read HAINT */ + haint.d32 = DWC_READ_REG32(&hc_global_regs->haint); + + /* Read HCINT */ + hcint.d32 = DWC_READ_REG32(&hc_regs->hcint); + + /* Read HCCHAR */ + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + + /* Clear HCINT */ + DWC_WRITE_REG32(&hc_regs->hcint, hcint.d32); + + /* Clear HAINT */ + DWC_WRITE_REG32(&hc_global_regs->haint, haint.d32); + + /* Clear GINTSTS */ + DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32); + + /* Read GINTSTS */ + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); +} + +static void do_in_ack(void) +{ + gintsts_data_t gintsts; + hctsiz_data_t hctsiz; + hcchar_data_t hcchar; + haint_data_t haint; + hcint_data_t hcint; + host_grxsts_data_t grxsts; + + /* Enable HAINTs */ + DWC_WRITE_REG32(&hc_global_regs->haintmsk, 0x0001); + + /* Enable HCINTs */ + DWC_WRITE_REG32(&hc_regs->hcintmsk, 0x04a3); + + /* Read GINTSTS */ + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); + + /* Read HAINT */ + haint.d32 = DWC_READ_REG32(&hc_global_regs->haint); + + /* Read HCINT */ + hcint.d32 = DWC_READ_REG32(&hc_regs->hcint); + + /* Read HCCHAR */ + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + + /* Clear HCINT */ + DWC_WRITE_REG32(&hc_regs->hcint, hcint.d32); + + /* Clear HAINT */ + DWC_WRITE_REG32(&hc_global_regs->haint, haint.d32); + + /* Clear GINTSTS */ + DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32); + + /* Read GINTSTS */ + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); + + /* + * Receive Control In packet + */ + + /* Make sure channel is disabled */ + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + if (hcchar.b.chen) { + hcchar.b.chdis = 1; + hcchar.b.chen = 1; + DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32); + //sleep(1); + dwc_mdelay(1000); + + /* Read GINTSTS */ + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); + + /* Read HAINT */ + haint.d32 = DWC_READ_REG32(&hc_global_regs->haint); + + /* Read HCINT */ + hcint.d32 = DWC_READ_REG32(&hc_regs->hcint); + + /* Read HCCHAR */ + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + + /* Clear HCINT */ + DWC_WRITE_REG32(&hc_regs->hcint, hcint.d32); + + /* Clear HAINT */ + DWC_WRITE_REG32(&hc_global_regs->haint, haint.d32); + + /* Clear GINTSTS */ + DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32); + + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + } + + /* Set HCTSIZ */ + hctsiz.d32 = 0; + hctsiz.b.xfersize = 8; + hctsiz.b.pktcnt = 1; + hctsiz.b.pid = DWC_OTG_HC_PID_DATA1; + DWC_WRITE_REG32(&hc_regs->hctsiz, hctsiz.d32); + + /* Set HCCHAR */ + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + hcchar.b.eptype = DWC_OTG_EP_TYPE_CONTROL; + hcchar.b.epdir = 1; + hcchar.b.epnum = 0; + hcchar.b.mps = 8; + hcchar.b.chen = 1; + DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32); + + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); + + /* Wait for receive status queue interrupt */ + do { + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); + } while (gintsts.b.rxstsqlvl == 0); + + /* Read RXSTS */ + grxsts.d32 = DWC_READ_REG32(&global_regs->grxstsp); + + /* Clear RXSTSQLVL in GINTSTS */ + gintsts.d32 = 0; + gintsts.b.rxstsqlvl = 1; + DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32); + + switch (grxsts.b.pktsts) { + case DWC_GRXSTS_PKTSTS_IN: + /* Read the data into the host buffer */ + if (grxsts.b.bcnt > 0) { + int i; + int word_count = (grxsts.b.bcnt + 3) / 4; + + data_fifo = (uint32_t *) ((char *)global_regs + 0x1000); + + for (i = 0; i < word_count; i++) { + (void)DWC_READ_REG32(data_fifo++); + } + } + break; + + default: + break; + } + + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); + + /* Wait for receive status queue interrupt */ + do { + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); + } while (gintsts.b.rxstsqlvl == 0); + + /* Read RXSTS */ + grxsts.d32 = DWC_READ_REG32(&global_regs->grxstsp); + + /* Clear RXSTSQLVL in GINTSTS */ + gintsts.d32 = 0; + gintsts.b.rxstsqlvl = 1; + DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32); + + switch (grxsts.b.pktsts) { + case DWC_GRXSTS_PKTSTS_IN_XFER_COMP: + break; + + default: + break; + } + + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); + + /* Wait for host channel interrupt */ + do { + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); + } while (gintsts.b.hcintr == 0); + + /* Read HAINT */ + haint.d32 = DWC_READ_REG32(&hc_global_regs->haint); + + /* Read HCINT */ + hcint.d32 = DWC_READ_REG32(&hc_regs->hcint); + + /* Read HCCHAR */ + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + + /* Clear HCINT */ + DWC_WRITE_REG32(&hc_regs->hcint, hcint.d32); + + /* Clear HAINT */ + DWC_WRITE_REG32(&hc_global_regs->haint, haint.d32); + + /* Clear GINTSTS */ + DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32); + + /* Read GINTSTS */ + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); + +// usleep(100000); +// mdelay(100); + dwc_mdelay(1); + + /* + * Send handshake packet + */ + + /* Read HAINT */ + haint.d32 = DWC_READ_REG32(&hc_global_regs->haint); + + /* Read HCINT */ + hcint.d32 = DWC_READ_REG32(&hc_regs->hcint); + + /* Read HCCHAR */ + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + + /* Clear HCINT */ + DWC_WRITE_REG32(&hc_regs->hcint, hcint.d32); + + /* Clear HAINT */ + DWC_WRITE_REG32(&hc_global_regs->haint, haint.d32); + + /* Clear GINTSTS */ + DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32); + + /* Read GINTSTS */ + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); + + /* Make sure channel is disabled */ + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + if (hcchar.b.chen) { + hcchar.b.chdis = 1; + hcchar.b.chen = 1; + DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32); + //sleep(1); + dwc_mdelay(1000); + + /* Read GINTSTS */ + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); + + /* Read HAINT */ + haint.d32 = DWC_READ_REG32(&hc_global_regs->haint); + + /* Read HCINT */ + hcint.d32 = DWC_READ_REG32(&hc_regs->hcint); + + /* Read HCCHAR */ + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + + /* Clear HCINT */ + DWC_WRITE_REG32(&hc_regs->hcint, hcint.d32); + + /* Clear HAINT */ + DWC_WRITE_REG32(&hc_global_regs->haint, haint.d32); + + /* Clear GINTSTS */ + DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32); + + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + } + + /* Set HCTSIZ */ + hctsiz.d32 = 0; + hctsiz.b.xfersize = 0; + hctsiz.b.pktcnt = 1; + hctsiz.b.pid = DWC_OTG_HC_PID_DATA1; + DWC_WRITE_REG32(&hc_regs->hctsiz, hctsiz.d32); + + /* Set HCCHAR */ + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + hcchar.b.eptype = DWC_OTG_EP_TYPE_CONTROL; + hcchar.b.epdir = 0; + hcchar.b.epnum = 0; + hcchar.b.mps = 8; + hcchar.b.chen = 1; + DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32); + + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); + + /* Wait for host channel interrupt */ + do { + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); + } while (gintsts.b.hcintr == 0); + + /* Disable HCINTs */ + DWC_WRITE_REG32(&hc_regs->hcintmsk, 0x0000); + + /* Disable HAINTs */ + DWC_WRITE_REG32(&hc_global_regs->haintmsk, 0x0000); + + /* Read HAINT */ + haint.d32 = DWC_READ_REG32(&hc_global_regs->haint); + + /* Read HCINT */ + hcint.d32 = DWC_READ_REG32(&hc_regs->hcint); + + /* Read HCCHAR */ + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + + /* Clear HCINT */ + DWC_WRITE_REG32(&hc_regs->hcint, hcint.d32); + + /* Clear HAINT */ + DWC_WRITE_REG32(&hc_global_regs->haint, haint.d32); + + /* Clear GINTSTS */ + DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32); + + /* Read GINTSTS */ + gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts); +} +#endif + +/** Handles hub class-specific requests. */ +int dwc_otg_hcd_hub_control(dwc_otg_hcd_t * dwc_otg_hcd, + uint16_t typeReq, + uint16_t wValue, + uint16_t wIndex, uint8_t * buf, uint16_t wLength) +{ + int retval = 0; + + dwc_otg_core_if_t *core_if = dwc_otg_hcd->core_if; + usb_hub_descriptor_t *hub_desc; + hprt0_data_t hprt0 = {.d32 = 0 }; + + uint32_t port_status; + + switch (typeReq) { + case UCR_CLEAR_HUB_FEATURE: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "ClearHubFeature 0x%x\n", wValue); + switch (wValue) { + case UHF_C_HUB_LOCAL_POWER: + case UHF_C_HUB_OVER_CURRENT: + /* Nothing required here */ + break; + default: + retval = -DWC_E_INVALID; + DWC_ERROR("DWC OTG HCD - " + "ClearHubFeature request %xh unknown\n", + wValue); + } + break; + case UCR_CLEAR_PORT_FEATURE: +#ifdef CONFIG_USB_DWC_OTG_LPM + if (wValue != UHF_PORT_L1) +#endif + if (!wIndex || wIndex > 1) + goto error; + + switch (wValue) { + case UHF_PORT_ENABLE: + DWC_DEBUGPL(DBG_ANY, "DWC OTG HCD HUB CONTROL - " + "ClearPortFeature USB_PORT_FEAT_ENABLE\n"); + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtena = 1; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + break; + case UHF_PORT_SUSPEND: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "ClearPortFeature USB_PORT_FEAT_SUSPEND\n"); + + if (core_if->power_down == 2) { + dwc_otg_host_hibernation_restore(core_if, 0, 0); + } else { + DWC_WRITE_REG32(core_if->pcgcctl, 0); + dwc_mdelay(5); + + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtres = 1; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + hprt0.b.prtsusp = 0; + /* Clear Resume bit */ + dwc_mdelay(100); + hprt0.b.prtres = 0; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + } + break; +#ifdef CONFIG_USB_DWC_OTG_LPM + case UHF_PORT_L1: + { + pcgcctl_data_t pcgcctl = {.d32 = 0 }; + glpmcfg_data_t lpmcfg = {.d32 = 0 }; + + lpmcfg.d32 = + DWC_READ_REG32(&core_if-> + core_global_regs->glpmcfg); + lpmcfg.b.en_utmi_sleep = 0; + lpmcfg.b.hird_thres &= (~(1 << 4)); + lpmcfg.b.prt_sleep_sts = 1; + DWC_WRITE_REG32(&core_if-> + core_global_regs->glpmcfg, + lpmcfg.d32); + + /* Clear Enbl_L1Gating bit. */ + pcgcctl.b.enbl_sleep_gating = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, pcgcctl.d32, + 0); + + dwc_mdelay(5); + + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtres = 1; + DWC_WRITE_REG32(core_if->host_if->hprt0, + hprt0.d32); + /* This bit will be cleared in wakeup interrupt handle */ + break; + } +#endif + case UHF_PORT_POWER: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "ClearPortFeature USB_PORT_FEAT_POWER\n"); + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtpwr = 0; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + break; + case UHF_PORT_INDICATOR: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "ClearPortFeature USB_PORT_FEAT_INDICATOR\n"); + /* Port inidicator not supported */ + break; + case UHF_C_PORT_CONNECTION: + /* Clears drivers internal connect status change + * flag */ + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "ClearPortFeature USB_PORT_FEAT_C_CONNECTION\n"); + dwc_otg_hcd->flags.b.port_connect_status_change = 0; + break; + case UHF_C_PORT_RESET: + /* Clears the driver's internal Port Reset Change + * flag */ + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "ClearPortFeature USB_PORT_FEAT_C_RESET\n"); + dwc_otg_hcd->flags.b.port_reset_change = 0; + break; + case UHF_C_PORT_ENABLE: + /* Clears the driver's internal Port + * Enable/Disable Change flag */ + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "ClearPortFeature USB_PORT_FEAT_C_ENABLE\n"); + dwc_otg_hcd->flags.b.port_enable_change = 0; + break; + case UHF_C_PORT_SUSPEND: + /* Clears the driver's internal Port Suspend + * Change flag, which is set when resume signaling on + * the host port is complete */ + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "ClearPortFeature USB_PORT_FEAT_C_SUSPEND\n"); + dwc_otg_hcd->flags.b.port_suspend_change = 0; + break; +#ifdef CONFIG_USB_DWC_OTG_LPM + case UHF_C_PORT_L1: + dwc_otg_hcd->flags.b.port_l1_change = 0; + break; +#endif + case UHF_C_PORT_OVER_CURRENT: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "ClearPortFeature USB_PORT_FEAT_C_OVER_CURRENT\n"); + dwc_otg_hcd->flags.b.port_over_current_change = 0; + break; + default: + retval = -DWC_E_INVALID; + DWC_ERROR("DWC OTG HCD - " + "ClearPortFeature request %xh " + "unknown or unsupported\n", wValue); + } + break; + case UCR_GET_HUB_DESCRIPTOR: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "GetHubDescriptor\n"); + hub_desc = (usb_hub_descriptor_t *) buf; + hub_desc->bDescLength = 9; + hub_desc->bDescriptorType = 0x29; + hub_desc->bNbrPorts = 1; + USETW(hub_desc->wHubCharacteristics, 0x08); + hub_desc->bPwrOn2PwrGood = 1; + hub_desc->bHubContrCurrent = 0; + hub_desc->DeviceRemovable[0] = 0; + hub_desc->DeviceRemovable[1] = 0xff; + break; + case UCR_GET_HUB_STATUS: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "GetHubStatus\n"); + DWC_MEMSET(buf, 0, 4); + break; + case UCR_GET_PORT_STATUS: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "GetPortStatus wIndex = 0x%04x FLAGS=0x%08x\n", + wIndex, dwc_otg_hcd->flags.d32); + if (!wIndex || wIndex > 1) + goto error; + + port_status = 0; + + if (dwc_otg_hcd->flags.b.port_connect_status_change) + port_status |= (1 << UHF_C_PORT_CONNECTION); + + if (dwc_otg_hcd->flags.b.port_enable_change) + port_status |= (1 << UHF_C_PORT_ENABLE); + + if (dwc_otg_hcd->flags.b.port_suspend_change) + port_status |= (1 << UHF_C_PORT_SUSPEND); + + if (dwc_otg_hcd->flags.b.port_l1_change) + port_status |= (1 << UHF_C_PORT_L1); + + if (dwc_otg_hcd->flags.b.port_reset_change) { + port_status |= (1 << UHF_C_PORT_RESET); + } + + if (dwc_otg_hcd->flags.b.port_over_current_change) { + DWC_WARN("Overcurrent change detected\n"); + port_status |= (1 << UHF_C_PORT_OVER_CURRENT); + } + + if (!dwc_otg_hcd->flags.b.port_connect_status) { + /* + * The port is disconnected, which means the core is + * either in device mode or it soon will be. Just + * return 0's for the remainder of the port status + * since the port register can't be read if the core + * is in device mode. + */ + *((__le32 *) buf) = dwc_cpu_to_le32(&port_status); + break; + } + + hprt0.d32 = DWC_READ_REG32(core_if->host_if->hprt0); + DWC_DEBUGPL(DBG_HCDV, " HPRT0: 0x%08x\n", hprt0.d32); + + if (hprt0.b.prtconnsts) + port_status |= (1 << UHF_PORT_CONNECTION); + + if (hprt0.b.prtena) + port_status |= (1 << UHF_PORT_ENABLE); + + if (hprt0.b.prtsusp) + port_status |= (1 << UHF_PORT_SUSPEND); + + if (hprt0.b.prtovrcurract) + port_status |= (1 << UHF_PORT_OVER_CURRENT); + + if (hprt0.b.prtrst) + port_status |= (1 << UHF_PORT_RESET); + + if (hprt0.b.prtpwr) + port_status |= (1 << UHF_PORT_POWER); + + if (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_HIGH_SPEED) + port_status |= (1 << UHF_PORT_HIGH_SPEED); + else if (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_LOW_SPEED) + port_status |= (1 << UHF_PORT_LOW_SPEED); + + if (hprt0.b.prttstctl) + port_status |= (1 << UHF_PORT_TEST); + if (dwc_otg_get_lpm_portsleepstatus(dwc_otg_hcd->core_if)) { + port_status |= (1 << UHF_PORT_L1); + } + /* + For Synopsys HW emulation of Power down wkup_control asserts the + hreset_n and prst_n on suspned. This causes the HPRT0 to be zero. + We intentionally tell the software that port is in L2Suspend state. + Only for STE. + */ + if ((core_if->power_down == 2) + && (core_if->hibernation_suspend == 1)) { + port_status |= (1 << UHF_PORT_SUSPEND); + } + /* USB_PORT_FEAT_INDICATOR unsupported always 0 */ + + *((__le32 *) buf) = dwc_cpu_to_le32(&port_status); + + break; + case UCR_SET_HUB_FEATURE: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "SetHubFeature\n"); + /* No HUB features supported */ + break; + case UCR_SET_PORT_FEATURE: + if (wValue != UHF_PORT_TEST && (!wIndex || wIndex > 1)) + goto error; + + if (!dwc_otg_hcd->flags.b.port_connect_status) { + /* + * The port is disconnected, which means the core is + * either in device mode or it soon will be. Just + * return without doing anything since the port + * register can't be written if the core is in device + * mode. + */ + break; + } + + switch (wValue) { + case UHF_PORT_SUSPEND: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "SetPortFeature - USB_PORT_FEAT_SUSPEND\n"); + if (dwc_otg_hcd_otg_port(dwc_otg_hcd) != wIndex) { + goto error; + } + if (core_if->power_down == 2) { + int timeout = 300; + dwc_irqflags_t flags; + pcgcctl_data_t pcgcctl = {.d32 = 0 }; + gpwrdn_data_t gpwrdn = {.d32 = 0 }; + gusbcfg_data_t gusbcfg = {.d32 = 0 }; +#ifdef DWC_DEV_SRPCAP + int32_t otg_cap_param = core_if->core_params->otg_cap; +#endif + DWC_PRINTF("Preparing for complete power-off\n"); + + /* Save registers before hibernation */ + dwc_otg_save_global_regs(core_if); + dwc_otg_save_host_regs(core_if); + + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtsusp = 1; + hprt0.b.prtena = 0; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + /* Spin hprt0.b.prtsusp to became 1 */ + do { + hprt0.d32 = dwc_otg_read_hprt0(core_if); + if (hprt0.b.prtsusp) { + break; + } + dwc_mdelay(1); + } while (--timeout); + if (!timeout) { + DWC_WARN("Suspend wasn't genereted\n"); + } + dwc_udelay(10); + + /* + * We need to disable interrupts to prevent servicing of any IRQ + * during going to hibernation + */ + DWC_SPINLOCK_IRQSAVE(dwc_otg_hcd->lock, &flags); + core_if->lx_state = DWC_OTG_L2; +#ifdef DWC_DEV_SRPCAP + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtpwr = 0; + hprt0.b.prtena = 0; + DWC_WRITE_REG32(core_if->host_if->hprt0, + hprt0.d32); +#endif + gusbcfg.d32 = + DWC_READ_REG32(&core_if->core_global_regs-> + gusbcfg); + if (gusbcfg.b.ulpi_utmi_sel == 1) { + /* ULPI interface */ + /* Suspend the Phy Clock */ + pcgcctl.d32 = 0; + pcgcctl.b.stoppclk = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, 0, + pcgcctl.d32); + dwc_udelay(10); + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if-> + core_global_regs-> + gpwrdn, 0, gpwrdn.d32); + } else { + /* UTMI+ Interface */ + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if-> + core_global_regs-> + gpwrdn, 0, gpwrdn.d32); + dwc_udelay(10); + pcgcctl.b.stoppclk = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, 0, pcgcctl.d32); + dwc_udelay(10); + } +#ifdef DWC_DEV_SRPCAP + gpwrdn.d32 = 0; + gpwrdn.b.dis_vbus = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs-> + gpwrdn, 0, gpwrdn.d32); +#endif + gpwrdn.d32 = 0; + gpwrdn.b.pmuintsel = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs-> + gpwrdn, 0, gpwrdn.d32); + dwc_udelay(10); + + gpwrdn.d32 = 0; +#ifdef DWC_DEV_SRPCAP + gpwrdn.b.srp_det_msk = 1; +#endif + gpwrdn.b.disconn_det_msk = 1; + gpwrdn.b.lnstchng_msk = 1; + gpwrdn.b.sts_chngint_msk = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs-> + gpwrdn, 0, gpwrdn.d32); + dwc_udelay(10); + + /* Enable Power Down Clamp and all interrupts in GPWRDN */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnclmp = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs-> + gpwrdn, 0, gpwrdn.d32); + dwc_udelay(10); + + /* Switch off VDD */ + gpwrdn.d32 = 0; + gpwrdn.b.pwrdnswtch = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs-> + gpwrdn, 0, gpwrdn.d32); + +#ifdef DWC_DEV_SRPCAP + if (otg_cap_param == DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE) + { + core_if->pwron_timer_started = 1; + DWC_TIMER_SCHEDULE(core_if->pwron_timer, 6000 /* 6 secs */ ); + } +#endif + /* Save gpwrdn register for further usage if stschng interrupt */ + core_if->gr_backup->gpwrdn_local = + DWC_READ_REG32(&core_if->core_global_regs->gpwrdn); + + /* Set flag to indicate that we are in hibernation */ + core_if->hibernation_suspend = 1; + DWC_SPINUNLOCK_IRQRESTORE(dwc_otg_hcd->lock,flags); + + DWC_PRINTF("Host hibernation completed\n"); + // Exit from case statement + break; + + } + if (dwc_otg_hcd_otg_port(dwc_otg_hcd) == wIndex && + dwc_otg_hcd->fops->get_b_hnp_enable(dwc_otg_hcd)) { + gotgctl_data_t gotgctl = {.d32 = 0 }; + gotgctl.b.hstsethnpen = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs-> + gotgctl, 0, gotgctl.d32); + core_if->op_state = A_SUSPEND; + } + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtsusp = 1; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + { + dwc_irqflags_t flags; + /* Update lx_state */ + DWC_SPINLOCK_IRQSAVE(dwc_otg_hcd->lock, &flags); + core_if->lx_state = DWC_OTG_L2; + DWC_SPINUNLOCK_IRQRESTORE(dwc_otg_hcd->lock, flags); + } + /* Suspend the Phy Clock */ + { + pcgcctl_data_t pcgcctl = {.d32 = 0 }; + pcgcctl.b.stoppclk = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, 0, + pcgcctl.d32); + dwc_udelay(10); + } + + /* For HNP the bus must be suspended for at least 200ms. */ + if (dwc_otg_hcd->fops->get_b_hnp_enable(dwc_otg_hcd)) { + pcgcctl_data_t pcgcctl = {.d32 = 0 }; + pcgcctl.b.stoppclk = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, pcgcctl.d32, 0); + dwc_mdelay(200); + } + + /** @todo - check how sw can wait for 1 sec to check asesvld??? */ +#if 0 //vahrama !!!!!!!!!!!!!!!!!! + if (core_if->adp_enable) { + gotgctl_data_t gotgctl = {.d32 = 0 }; + gpwrdn_data_t gpwrdn; + + while (gotgctl.b.asesvld == 1) { + gotgctl.d32 = + DWC_READ_REG32(&core_if-> + core_global_regs-> + gotgctl); + dwc_mdelay(100); + } + + /* Enable Power Down Logic */ + gpwrdn.d32 = 0; + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs-> + gpwrdn, 0, gpwrdn.d32); + + /* Unmask SRP detected interrupt from Power Down Logic */ + gpwrdn.d32 = 0; + gpwrdn.b.srp_det_msk = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs-> + gpwrdn, 0, gpwrdn.d32); + + dwc_otg_adp_probe_start(core_if); + } +#endif + break; + case UHF_PORT_POWER: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "SetPortFeature - USB_PORT_FEAT_POWER\n"); + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prtpwr = 1; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + break; + case UHF_PORT_RESET: + if ((core_if->power_down == 2) + && (core_if->hibernation_suspend == 1)) { + /* If we are going to exit from Hibernated + * state via USB RESET. + */ + dwc_otg_host_hibernation_restore(core_if, 0, 1); + } else { + hprt0.d32 = dwc_otg_read_hprt0(core_if); + + DWC_DEBUGPL(DBG_HCD, + "DWC OTG HCD HUB CONTROL - " + "SetPortFeature - USB_PORT_FEAT_RESET\n"); + { + pcgcctl_data_t pcgcctl = {.d32 = 0 }; + pcgcctl.b.enbl_sleep_gating = 1; + pcgcctl.b.stoppclk = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, pcgcctl.d32, 0); + DWC_WRITE_REG32(core_if->pcgcctl, 0); + } +#ifdef CONFIG_USB_DWC_OTG_LPM + { + glpmcfg_data_t lpmcfg; + lpmcfg.d32 = + DWC_READ_REG32(&core_if->core_global_regs->glpmcfg); + if (lpmcfg.b.prt_sleep_sts) { + lpmcfg.b.en_utmi_sleep = 0; + lpmcfg.b.hird_thres &= (~(1 << 4)); + DWC_WRITE_REG32 + (&core_if->core_global_regs->glpmcfg, + lpmcfg.d32); + dwc_mdelay(1); + } + } +#endif + hprt0.d32 = dwc_otg_read_hprt0(core_if); + /* Clear suspend bit if resetting from suspended state. */ + hprt0.b.prtsusp = 0; + /* When B-Host the Port reset bit is set in + * the Start HCD Callback function, so that + * the reset is started within 1ms of the HNP + * success interrupt. */ + if (!dwc_otg_hcd_is_b_host(dwc_otg_hcd)) { + hprt0.b.prtpwr = 1; + hprt0.b.prtrst = 1; + DWC_PRINTF("Indeed it is in host mode hprt0 = %08x\n",hprt0.d32); + DWC_WRITE_REG32(core_if->host_if->hprt0, + hprt0.d32); + } + /* Clear reset bit in 10ms (FS/LS) or 50ms (HS) */ + dwc_mdelay(60); + hprt0.b.prtrst = 0; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + core_if->lx_state = DWC_OTG_L0; /* Now back to the on state */ + } + break; +#ifdef DWC_HS_ELECT_TST + case UHF_PORT_TEST: + { + uint32_t t; + gintmsk_data_t gintmsk; + + t = (wIndex >> 8); /* MSB wIndex USB */ + DWC_DEBUGPL(DBG_HCD, + "DWC OTG HCD HUB CONTROL - " + "SetPortFeature - USB_PORT_FEAT_TEST %d\n", + t); + DWC_WARN("USB_PORT_FEAT_TEST %d\n", t); + if (t < 6) { + hprt0.d32 = dwc_otg_read_hprt0(core_if); + hprt0.b.prttstctl = t; + DWC_WRITE_REG32(core_if->host_if->hprt0, + hprt0.d32); + } else { + /* Setup global vars with reg addresses (quick and + * dirty hack, should be cleaned up) + */ + global_regs = core_if->core_global_regs; + hc_global_regs = + core_if->host_if->host_global_regs; + hc_regs = + (dwc_otg_hc_regs_t *) ((char *) + global_regs + + 0x500); + data_fifo = + (uint32_t *) ((char *)global_regs + + 0x1000); + + if (t == 6) { /* HS_HOST_PORT_SUSPEND_RESUME */ + /* Save current interrupt mask */ + gintmsk.d32 = + DWC_READ_REG32 + (&global_regs->gintmsk); + + /* Disable all interrupts while we muck with + * the hardware directly + */ + DWC_WRITE_REG32(&global_regs->gintmsk, 0); + + /* 15 second delay per the test spec */ + dwc_mdelay(15000); + + /* Drive suspend on the root port */ + hprt0.d32 = + dwc_otg_read_hprt0(core_if); + hprt0.b.prtsusp = 1; + hprt0.b.prtres = 0; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + + /* 15 second delay per the test spec */ + dwc_mdelay(15000); + + /* Drive resume on the root port */ + hprt0.d32 = + dwc_otg_read_hprt0(core_if); + hprt0.b.prtsusp = 0; + hprt0.b.prtres = 1; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + dwc_mdelay(100); + + /* Clear the resume bit */ + hprt0.b.prtres = 0; + DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32); + + /* Restore interrupts */ + DWC_WRITE_REG32(&global_regs->gintmsk, gintmsk.d32); + } else if (t == 7) { /* SINGLE_STEP_GET_DEVICE_DESCRIPTOR setup */ + /* Save current interrupt mask */ + gintmsk.d32 = + DWC_READ_REG32 + (&global_regs->gintmsk); + + /* Disable all interrupts while we muck with + * the hardware directly + */ + DWC_WRITE_REG32(&global_regs->gintmsk, 0); + + /* 15 second delay per the test spec */ + dwc_mdelay(15000); + + /* Send the Setup packet */ + do_setup(); + + /* 15 second delay so nothing else happens for awhile */ + dwc_mdelay(15000); + + /* Restore interrupts */ + DWC_WRITE_REG32(&global_regs->gintmsk, gintmsk.d32); + } else if (t == 8) { /* SINGLE_STEP_GET_DEVICE_DESCRIPTOR execute */ + /* Save current interrupt mask */ + gintmsk.d32 = + DWC_READ_REG32 + (&global_regs->gintmsk); + + /* Disable all interrupts while we muck with + * the hardware directly + */ + DWC_WRITE_REG32(&global_regs->gintmsk, 0); + + /* Send the Setup packet */ + do_setup(); + + /* 15 second delay so nothing else happens for awhile */ + dwc_mdelay(15000); + + /* Send the In and Ack packets */ + do_in_ack(); + + /* 15 second delay so nothing else happens for awhile */ + dwc_mdelay(15000); + + /* Restore interrupts */ + DWC_WRITE_REG32(&global_regs->gintmsk, gintmsk.d32); + } + } + break; + } +#endif /* DWC_HS_ELECT_TST */ + + case UHF_PORT_INDICATOR: + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - " + "SetPortFeature - USB_PORT_FEAT_INDICATOR\n"); + /* Not supported */ + break; + default: + retval = -DWC_E_INVALID; + DWC_ERROR("DWC OTG HCD - " + "SetPortFeature request %xh " + "unknown or unsupported\n", wValue); + break; + } + break; +#ifdef CONFIG_USB_DWC_OTG_LPM + case UCR_SET_AND_TEST_PORT_FEATURE: + if (wValue != UHF_PORT_L1) { + goto error; + } + { + int portnum, hird, devaddr, remwake; + glpmcfg_data_t lpmcfg; + uint32_t time_usecs; + gintsts_data_t gintsts; + gintmsk_data_t gintmsk; + + if (!dwc_otg_get_param_lpm_enable(core_if)) { + goto error; + } + if (wValue != UHF_PORT_L1 || wLength != 1) { + goto error; + } + /* Check if the port currently is in SLEEP state */ + lpmcfg.d32 = + DWC_READ_REG32(&core_if->core_global_regs->glpmcfg); + if (lpmcfg.b.prt_sleep_sts) { + DWC_INFO("Port is already in sleep mode\n"); + buf[0] = 0; /* Return success */ + break; + } + + portnum = wIndex & 0xf; + hird = (wIndex >> 4) & 0xf; + devaddr = (wIndex >> 8) & 0x7f; + remwake = (wIndex >> 15); + + if (portnum != 1) { + retval = -DWC_E_INVALID; + DWC_WARN + ("Wrong port number(%d) in SetandTestPortFeature request\n", + portnum); + break; + } + + DWC_PRINTF + ("SetandTestPortFeature request: portnum = %d, hird = %d, devaddr = %d, rewake = %d\n", + portnum, hird, devaddr, remwake); + /* Disable LPM interrupt */ + gintmsk.d32 = 0; + gintmsk.b.lpmtranrcvd = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk, + gintmsk.d32, 0); + + if (dwc_otg_hcd_send_lpm + (dwc_otg_hcd, devaddr, hird, remwake)) { + retval = -DWC_E_INVALID; + break; + } + + time_usecs = 10 * (lpmcfg.b.retry_count + 1); + /* We will consider timeout if time_usecs microseconds pass, + * and we don't receive LPM transaction status. + * After receiving non-error responce(ACK/NYET/STALL) from device, + * core will set lpmtranrcvd bit. + */ + do { + gintsts.d32 = + DWC_READ_REG32(&core_if->core_global_regs->gintsts); + if (gintsts.b.lpmtranrcvd) { + break; + } + dwc_udelay(1); + } while (--time_usecs); + /* lpm_int bit will be cleared in LPM interrupt handler */ + + /* Now fill status + * 0x00 - Success + * 0x10 - NYET + * 0x11 - Timeout + */ + if (!gintsts.b.lpmtranrcvd) { + buf[0] = 0x3; /* Completion code is Timeout */ + dwc_otg_hcd_free_hc_from_lpm(dwc_otg_hcd); + } else { + lpmcfg.d32 = + DWC_READ_REG32(&core_if->core_global_regs->glpmcfg); + if (lpmcfg.b.lpm_resp == 0x3) { + /* ACK responce from the device */ + buf[0] = 0x00; /* Success */ + } else if (lpmcfg.b.lpm_resp == 0x2) { + /* NYET responce from the device */ + buf[0] = 0x2; + } else { + /* Otherwise responce with Timeout */ + buf[0] = 0x3; + } + } + DWC_PRINTF("Device responce to LPM trans is %x\n", + lpmcfg.b.lpm_resp); + DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk, 0, + gintmsk.d32); + + break; + } +#endif /* CONFIG_USB_DWC_OTG_LPM */ + default: +error: + retval = -DWC_E_INVALID; + DWC_WARN("DWC OTG HCD - " + "Unknown hub control request type or invalid typeReq: %xh wIndex: %xh wValue: %xh\n", + typeReq, wIndex, wValue); + break; + } + + return retval; +} + +#ifdef CONFIG_USB_DWC_OTG_LPM +/** Returns index of host channel to perform LPM transaction. */ +int dwc_otg_hcd_get_hc_for_lpm_tran(dwc_otg_hcd_t * hcd, uint8_t devaddr) +{ + dwc_otg_core_if_t *core_if = hcd->core_if; + dwc_hc_t *hc; + hcchar_data_t hcchar; + gintmsk_data_t gintmsk = {.d32 = 0 }; + + if (DWC_CIRCLEQ_EMPTY(&hcd->free_hc_list)) { + DWC_PRINTF("No free channel to select for LPM transaction\n"); + return -1; + } + + hc = DWC_CIRCLEQ_FIRST(&hcd->free_hc_list); + + /* Mask host channel interrupts. */ + gintmsk.b.hcintr = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk, gintmsk.d32, 0); + + /* Fill fields that core needs for LPM transaction */ + hcchar.b.devaddr = devaddr; + hcchar.b.epnum = 0; + hcchar.b.eptype = DWC_OTG_EP_TYPE_CONTROL; + hcchar.b.mps = 64; + hcchar.b.lspddev = (hc->speed == DWC_OTG_EP_SPEED_LOW); + hcchar.b.epdir = 0; /* OUT */ + DWC_WRITE_REG32(&core_if->host_if->hc_regs[hc->hc_num]->hcchar, + hcchar.d32); + + /* Remove the host channel from the free list. */ + DWC_CIRCLEQ_REMOVE_INIT(&hcd->free_hc_list, hc, hc_list_entry); + + DWC_PRINTF("hcnum = %d devaddr = %d\n", hc->hc_num, devaddr); + + return hc->hc_num; +} + +/** Release hc after performing LPM transaction */ +void dwc_otg_hcd_free_hc_from_lpm(dwc_otg_hcd_t * hcd) +{ + dwc_hc_t *hc; + glpmcfg_data_t lpmcfg; + uint8_t hc_num; + + lpmcfg.d32 = DWC_READ_REG32(&hcd->core_if->core_global_regs->glpmcfg); + hc_num = lpmcfg.b.lpm_chan_index; + + hc = hcd->hc_ptr_array[hc_num]; + + DWC_PRINTF("Freeing channel %d after LPM\n", hc_num); + /* Return host channel to free list */ + DWC_CIRCLEQ_INSERT_TAIL(&hcd->free_hc_list, hc, hc_list_entry); +} + +int dwc_otg_hcd_send_lpm(dwc_otg_hcd_t * hcd, uint8_t devaddr, uint8_t hird, + uint8_t bRemoteWake) +{ + glpmcfg_data_t lpmcfg; + pcgcctl_data_t pcgcctl = {.d32 = 0 }; + int channel; + + channel = dwc_otg_hcd_get_hc_for_lpm_tran(hcd, devaddr); + if (channel < 0) { + return channel; + } + + pcgcctl.b.enbl_sleep_gating = 1; + DWC_MODIFY_REG32(hcd->core_if->pcgcctl, 0, pcgcctl.d32); + + /* Read LPM config register */ + lpmcfg.d32 = DWC_READ_REG32(&hcd->core_if->core_global_regs->glpmcfg); + + /* Program LPM transaction fields */ + lpmcfg.b.rem_wkup_en = bRemoteWake; + lpmcfg.b.hird = hird; + lpmcfg.b.hird_thres = 0x1c; + lpmcfg.b.lpm_chan_index = channel; + lpmcfg.b.en_utmi_sleep = 1; + /* Program LPM config register */ + DWC_WRITE_REG32(&hcd->core_if->core_global_regs->glpmcfg, lpmcfg.d32); + + /* Send LPM transaction */ + lpmcfg.b.send_lpm = 1; + DWC_WRITE_REG32(&hcd->core_if->core_global_regs->glpmcfg, lpmcfg.d32); + + return 0; +} + +#endif /* CONFIG_USB_DWC_OTG_LPM */ + +int dwc_otg_hcd_is_status_changed(dwc_otg_hcd_t * hcd, int port) +{ + int retval; + + if (port != 1) { + return -DWC_E_INVALID; + } + + retval = (hcd->flags.b.port_connect_status_change || + hcd->flags.b.port_reset_change || + hcd->flags.b.port_enable_change || + hcd->flags.b.port_suspend_change || + hcd->flags.b.port_over_current_change); +#ifdef DEBUG + if (retval) { + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB STATUS DATA:" + " Root port status changed\n"); + DWC_DEBUGPL(DBG_HCDV, " port_connect_status_change: %d\n", + hcd->flags.b.port_connect_status_change); + DWC_DEBUGPL(DBG_HCDV, " port_reset_change: %d\n", + hcd->flags.b.port_reset_change); + DWC_DEBUGPL(DBG_HCDV, " port_enable_change: %d\n", + hcd->flags.b.port_enable_change); + DWC_DEBUGPL(DBG_HCDV, " port_suspend_change: %d\n", + hcd->flags.b.port_suspend_change); + DWC_DEBUGPL(DBG_HCDV, " port_over_current_change: %d\n", + hcd->flags.b.port_over_current_change); + } +#endif + return retval; +} + +int dwc_otg_hcd_get_frame_number(dwc_otg_hcd_t * dwc_otg_hcd) +{ + hfnum_data_t hfnum; + hfnum.d32 = + DWC_READ_REG32(&dwc_otg_hcd->core_if->host_if->host_global_regs-> + hfnum); + +#ifdef DEBUG_SOF + DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD GET FRAME NUMBER %d\n", + hfnum.b.frnum); +#endif + return hfnum.b.frnum; +} + +int dwc_otg_hcd_start(dwc_otg_hcd_t * hcd, + struct dwc_otg_hcd_function_ops *fops) +{ + int retval = 0; + + hcd->fops = fops; + if (!dwc_otg_is_device_mode(hcd->core_if) && + (!hcd->core_if->adp_enable || hcd->core_if->adp.adp_started)) { + dwc_otg_hcd_reinit(hcd); + } else { + retval = -DWC_E_NO_DEVICE; + } + + return retval; +} + +void *dwc_otg_hcd_get_priv_data(dwc_otg_hcd_t * hcd) +{ + return hcd->priv; +} + +void dwc_otg_hcd_set_priv_data(dwc_otg_hcd_t * hcd, void *priv_data) +{ + hcd->priv = priv_data; +} + +uint32_t dwc_otg_hcd_otg_port(dwc_otg_hcd_t * hcd) +{ + return hcd->otg_port; +} + +uint32_t dwc_otg_hcd_is_b_host(dwc_otg_hcd_t * hcd) +{ + uint32_t is_b_host; + if (hcd->core_if->op_state == B_HOST) { + is_b_host = 1; + } else { + is_b_host = 0; + } + + return is_b_host; +} + +dwc_otg_hcd_urb_t *dwc_otg_hcd_urb_alloc(dwc_otg_hcd_t * hcd, + int iso_desc_count, int atomic_alloc) +{ + dwc_otg_hcd_urb_t *dwc_otg_urb; + uint32_t size; + + size = + sizeof(*dwc_otg_urb) + + iso_desc_count * sizeof(struct dwc_otg_hcd_iso_packet_desc); + if (atomic_alloc) + dwc_otg_urb = DWC_ALLOC_ATOMIC(size); + else + dwc_otg_urb = DWC_ALLOC(size); + + if (dwc_otg_urb) + dwc_otg_urb->packet_count = iso_desc_count; + else { + DWC_ERROR("**** DWC OTG HCD URB alloc - " + "%salloc of %db failed\n", + atomic_alloc?"atomic ":"", size); + } + return dwc_otg_urb; +} + +void dwc_otg_hcd_urb_set_pipeinfo(dwc_otg_hcd_urb_t * dwc_otg_urb, + uint8_t dev_addr, uint8_t ep_num, + uint8_t ep_type, uint8_t ep_dir, uint16_t mps) +{ + dwc_otg_hcd_fill_pipe(&dwc_otg_urb->pipe_info, dev_addr, ep_num, + ep_type, ep_dir, mps); +#if 0 + DWC_PRINTF + ("addr = %d, ep_num = %d, ep_dir = 0x%x, ep_type = 0x%x, mps = %d\n", + dev_addr, ep_num, ep_dir, ep_type, mps); +#endif +} + +void dwc_otg_hcd_urb_set_params(dwc_otg_hcd_urb_t * dwc_otg_urb, + void *urb_handle, void *buf, dwc_dma_t dma, + uint32_t buflen, void *setup_packet, + dwc_dma_t setup_dma, uint32_t flags, + uint16_t interval) +{ + dwc_otg_urb->priv = urb_handle; + dwc_otg_urb->buf = buf; + dwc_otg_urb->dma = dma; + dwc_otg_urb->length = buflen; + dwc_otg_urb->setup_packet = setup_packet; + dwc_otg_urb->setup_dma = setup_dma; + dwc_otg_urb->flags = flags; + dwc_otg_urb->interval = interval; + dwc_otg_urb->status = -DWC_E_IN_PROGRESS; +} + +uint32_t dwc_otg_hcd_urb_get_status(dwc_otg_hcd_urb_t * dwc_otg_urb) +{ + return dwc_otg_urb->status; +} + +uint32_t dwc_otg_hcd_urb_get_actual_length(dwc_otg_hcd_urb_t * dwc_otg_urb) +{ + return dwc_otg_urb->actual_length; +} + +uint32_t dwc_otg_hcd_urb_get_error_count(dwc_otg_hcd_urb_t * dwc_otg_urb) +{ + return dwc_otg_urb->error_count; +} + +void dwc_otg_hcd_urb_set_iso_desc_params(dwc_otg_hcd_urb_t * dwc_otg_urb, + int desc_num, uint32_t offset, + uint32_t length) +{ + dwc_otg_urb->iso_descs[desc_num].offset = offset; + dwc_otg_urb->iso_descs[desc_num].length = length; +} + +uint32_t dwc_otg_hcd_urb_get_iso_desc_status(dwc_otg_hcd_urb_t * dwc_otg_urb, + int desc_num) +{ + return dwc_otg_urb->iso_descs[desc_num].status; +} + +uint32_t dwc_otg_hcd_urb_get_iso_desc_actual_length(dwc_otg_hcd_urb_t * + dwc_otg_urb, int desc_num) +{ + return dwc_otg_urb->iso_descs[desc_num].actual_length; +} + +int dwc_otg_hcd_is_bandwidth_allocated(dwc_otg_hcd_t * hcd, void *ep_handle) +{ + int allocated = 0; + dwc_otg_qh_t *qh = (dwc_otg_qh_t *) ep_handle; + + if (qh) { + if (!DWC_LIST_EMPTY(&qh->qh_list_entry)) { + allocated = 1; + } + } + return allocated; +} + +int dwc_otg_hcd_is_bandwidth_freed(dwc_otg_hcd_t * hcd, void *ep_handle) +{ + dwc_otg_qh_t *qh = (dwc_otg_qh_t *) ep_handle; + int freed = 0; + DWC_ASSERT(qh, "qh is not allocated\n"); + + if (DWC_LIST_EMPTY(&qh->qh_list_entry)) { + freed = 1; + } + + return freed; +} + +uint8_t dwc_otg_hcd_get_ep_bandwidth(dwc_otg_hcd_t * hcd, void *ep_handle) +{ + dwc_otg_qh_t *qh = (dwc_otg_qh_t *) ep_handle; + DWC_ASSERT(qh, "qh is not allocated\n"); + return qh->usecs; +} + +void dwc_otg_hcd_dump_state(dwc_otg_hcd_t * hcd) +{ +#ifdef DEBUG + int num_channels; + int i; + gnptxsts_data_t np_tx_status; + hptxsts_data_t p_tx_status; + + num_channels = hcd->core_if->core_params->host_channels; + DWC_PRINTF("\n"); + DWC_PRINTF + ("************************************************************\n"); + DWC_PRINTF("HCD State:\n"); + DWC_PRINTF(" Num channels: %d\n", num_channels); + for (i = 0; i < num_channels; i++) { + dwc_hc_t *hc = hcd->hc_ptr_array[i]; + DWC_PRINTF(" Channel %d:\n", i); + DWC_PRINTF(" dev_addr: %d, ep_num: %d, ep_is_in: %d\n", + hc->dev_addr, hc->ep_num, hc->ep_is_in); + DWC_PRINTF(" speed: %d\n", hc->speed); + DWC_PRINTF(" ep_type: %d\n", hc->ep_type); + DWC_PRINTF(" max_packet: %d\n", hc->max_packet); + DWC_PRINTF(" data_pid_start: %d\n", hc->data_pid_start); + DWC_PRINTF(" multi_count: %d\n", hc->multi_count); + DWC_PRINTF(" xfer_started: %d\n", hc->xfer_started); + DWC_PRINTF(" xfer_buff: %p\n", hc->xfer_buff); + DWC_PRINTF(" xfer_len: %d\n", hc->xfer_len); + DWC_PRINTF(" xfer_count: %d\n", hc->xfer_count); + DWC_PRINTF(" halt_on_queue: %d\n", hc->halt_on_queue); + DWC_PRINTF(" halt_pending: %d\n", hc->halt_pending); + DWC_PRINTF(" halt_status: %d\n", hc->halt_status); + DWC_PRINTF(" do_split: %d\n", hc->do_split); + DWC_PRINTF(" complete_split: %d\n", hc->complete_split); + DWC_PRINTF(" hub_addr: %d\n", hc->hub_addr); + DWC_PRINTF(" port_addr: %d\n", hc->port_addr); + DWC_PRINTF(" xact_pos: %d\n", hc->xact_pos); + DWC_PRINTF(" requests: %d\n", hc->requests); + DWC_PRINTF(" qh: %p\n", hc->qh); + if (hc->xfer_started) { + hfnum_data_t hfnum; + hcchar_data_t hcchar; + hctsiz_data_t hctsiz; + hcint_data_t hcint; + hcintmsk_data_t hcintmsk; + hfnum.d32 = + DWC_READ_REG32(&hcd->core_if-> + host_if->host_global_regs->hfnum); + hcchar.d32 = + DWC_READ_REG32(&hcd->core_if->host_if-> + hc_regs[i]->hcchar); + hctsiz.d32 = + DWC_READ_REG32(&hcd->core_if->host_if-> + hc_regs[i]->hctsiz); + hcint.d32 = + DWC_READ_REG32(&hcd->core_if->host_if-> + hc_regs[i]->hcint); + hcintmsk.d32 = + DWC_READ_REG32(&hcd->core_if->host_if-> + hc_regs[i]->hcintmsk); + DWC_PRINTF(" hfnum: 0x%08x\n", hfnum.d32); + DWC_PRINTF(" hcchar: 0x%08x\n", hcchar.d32); + DWC_PRINTF(" hctsiz: 0x%08x\n", hctsiz.d32); + DWC_PRINTF(" hcint: 0x%08x\n", hcint.d32); + DWC_PRINTF(" hcintmsk: 0x%08x\n", hcintmsk.d32); + } + if (hc->xfer_started && hc->qh) { + dwc_otg_qtd_t *qtd; + dwc_otg_hcd_urb_t *urb; + + DWC_CIRCLEQ_FOREACH(qtd, &hc->qh->qtd_list, qtd_list_entry) { + if (!qtd->in_process) + break; + + urb = qtd->urb; + DWC_PRINTF(" URB Info:\n"); + DWC_PRINTF(" qtd: %p, urb: %p\n", qtd, urb); + if (urb) { + DWC_PRINTF(" Dev: %d, EP: %d %s\n", + dwc_otg_hcd_get_dev_addr(&urb-> + pipe_info), + dwc_otg_hcd_get_ep_num(&urb-> + pipe_info), + dwc_otg_hcd_is_pipe_in(&urb-> + pipe_info) ? + "IN" : "OUT"); + DWC_PRINTF(" Max packet size: %d\n", + dwc_otg_hcd_get_mps(&urb-> + pipe_info)); + DWC_PRINTF(" transfer_buffer: %p\n", + urb->buf); + DWC_PRINTF(" transfer_dma: %p\n", + (void *)urb->dma); + DWC_PRINTF(" transfer_buffer_length: %d\n", + urb->length); + DWC_PRINTF(" actual_length: %d\n", + urb->actual_length); + } + } + } + } + DWC_PRINTF(" non_periodic_channels: %d\n", hcd->non_periodic_channels); + DWC_PRINTF(" periodic_channels: %d\n", hcd->periodic_channels); + DWC_PRINTF(" periodic_usecs: %d\n", hcd->periodic_usecs); + np_tx_status.d32 = + DWC_READ_REG32(&hcd->core_if->core_global_regs->gnptxsts); + DWC_PRINTF(" NP Tx Req Queue Space Avail: %d\n", + np_tx_status.b.nptxqspcavail); + DWC_PRINTF(" NP Tx FIFO Space Avail: %d\n", + np_tx_status.b.nptxfspcavail); + p_tx_status.d32 = + DWC_READ_REG32(&hcd->core_if->host_if->host_global_regs->hptxsts); + DWC_PRINTF(" P Tx Req Queue Space Avail: %d\n", + p_tx_status.b.ptxqspcavail); + DWC_PRINTF(" P Tx FIFO Space Avail: %d\n", p_tx_status.b.ptxfspcavail); + dwc_otg_hcd_dump_frrem(hcd); + dwc_otg_dump_global_registers(hcd->core_if); + dwc_otg_dump_host_registers(hcd->core_if); + DWC_PRINTF + ("************************************************************\n"); + DWC_PRINTF("\n"); +#endif +} + +#ifdef DEBUG +void dwc_print_setup_data(uint8_t * setup) +{ + int i; + if (CHK_DEBUG_LEVEL(DBG_HCD)) { + DWC_PRINTF("Setup Data = MSB "); + for (i = 7; i >= 0; i--) + DWC_PRINTF("%02x ", setup[i]); + DWC_PRINTF("\n"); + DWC_PRINTF(" bmRequestType Tranfer = %s\n", + (setup[0] & 0x80) ? "Device-to-Host" : + "Host-to-Device"); + DWC_PRINTF(" bmRequestType Type = "); + switch ((setup[0] & 0x60) >> 5) { + case 0: + DWC_PRINTF("Standard\n"); + break; + case 1: + DWC_PRINTF("Class\n"); + break; + case 2: + DWC_PRINTF("Vendor\n"); + break; + case 3: + DWC_PRINTF("Reserved\n"); + break; + } + DWC_PRINTF(" bmRequestType Recipient = "); + switch (setup[0] & 0x1f) { + case 0: + DWC_PRINTF("Device\n"); + break; + case 1: + DWC_PRINTF("Interface\n"); + break; + case 2: + DWC_PRINTF("Endpoint\n"); + break; + case 3: + DWC_PRINTF("Other\n"); + break; + default: + DWC_PRINTF("Reserved\n"); + break; + } + DWC_PRINTF(" bRequest = 0x%0x\n", setup[1]); + DWC_PRINTF(" wValue = 0x%0x\n", *((uint16_t *) & setup[2])); + DWC_PRINTF(" wIndex = 0x%0x\n", *((uint16_t *) & setup[4])); + DWC_PRINTF(" wLength = 0x%0x\n\n", *((uint16_t *) & setup[6])); + } +} +#endif + +void dwc_otg_hcd_dump_frrem(dwc_otg_hcd_t * hcd) +{ +#if 0 + DWC_PRINTF("Frame remaining at SOF:\n"); + DWC_PRINTF(" samples %u, accum %llu, avg %llu\n", + hcd->frrem_samples, hcd->frrem_accum, + (hcd->frrem_samples > 0) ? + hcd->frrem_accum / hcd->frrem_samples : 0); + + DWC_PRINTF("\n"); + DWC_PRINTF("Frame remaining at start_transfer (uframe 7):\n"); + DWC_PRINTF(" samples %u, accum %llu, avg %llu\n", + hcd->core_if->hfnum_7_samples, + hcd->core_if->hfnum_7_frrem_accum, + (hcd->core_if->hfnum_7_samples > + 0) ? hcd->core_if->hfnum_7_frrem_accum / + hcd->core_if->hfnum_7_samples : 0); + DWC_PRINTF("Frame remaining at start_transfer (uframe 0):\n"); + DWC_PRINTF(" samples %u, accum %llu, avg %llu\n", + hcd->core_if->hfnum_0_samples, + hcd->core_if->hfnum_0_frrem_accum, + (hcd->core_if->hfnum_0_samples > + 0) ? hcd->core_if->hfnum_0_frrem_accum / + hcd->core_if->hfnum_0_samples : 0); + DWC_PRINTF("Frame remaining at start_transfer (uframe 1-6):\n"); + DWC_PRINTF(" samples %u, accum %llu, avg %llu\n", + hcd->core_if->hfnum_other_samples, + hcd->core_if->hfnum_other_frrem_accum, + (hcd->core_if->hfnum_other_samples > + 0) ? hcd->core_if->hfnum_other_frrem_accum / + hcd->core_if->hfnum_other_samples : 0); + + DWC_PRINTF("\n"); + DWC_PRINTF("Frame remaining at sample point A (uframe 7):\n"); + DWC_PRINTF(" samples %u, accum %llu, avg %llu\n", + hcd->hfnum_7_samples_a, hcd->hfnum_7_frrem_accum_a, + (hcd->hfnum_7_samples_a > 0) ? + hcd->hfnum_7_frrem_accum_a / hcd->hfnum_7_samples_a : 0); + DWC_PRINTF("Frame remaining at sample point A (uframe 0):\n"); + DWC_PRINTF(" samples %u, accum %llu, avg %llu\n", + hcd->hfnum_0_samples_a, hcd->hfnum_0_frrem_accum_a, + (hcd->hfnum_0_samples_a > 0) ? + hcd->hfnum_0_frrem_accum_a / hcd->hfnum_0_samples_a : 0); + DWC_PRINTF("Frame remaining at sample point A (uframe 1-6):\n"); + DWC_PRINTF(" samples %u, accum %llu, avg %llu\n", + hcd->hfnum_other_samples_a, hcd->hfnum_other_frrem_accum_a, + (hcd->hfnum_other_samples_a > 0) ? + hcd->hfnum_other_frrem_accum_a / + hcd->hfnum_other_samples_a : 0); + + DWC_PRINTF("\n"); + DWC_PRINTF("Frame remaining at sample point B (uframe 7):\n"); + DWC_PRINTF(" samples %u, accum %llu, avg %llu\n", + hcd->hfnum_7_samples_b, hcd->hfnum_7_frrem_accum_b, + (hcd->hfnum_7_samples_b > 0) ? + hcd->hfnum_7_frrem_accum_b / hcd->hfnum_7_samples_b : 0); + DWC_PRINTF("Frame remaining at sample point B (uframe 0):\n"); + DWC_PRINTF(" samples %u, accum %llu, avg %llu\n", + hcd->hfnum_0_samples_b, hcd->hfnum_0_frrem_accum_b, + (hcd->hfnum_0_samples_b > 0) ? + hcd->hfnum_0_frrem_accum_b / hcd->hfnum_0_samples_b : 0); + DWC_PRINTF("Frame remaining at sample point B (uframe 1-6):\n"); + DWC_PRINTF(" samples %u, accum %llu, avg %llu\n", + hcd->hfnum_other_samples_b, hcd->hfnum_other_frrem_accum_b, + (hcd->hfnum_other_samples_b > 0) ? + hcd->hfnum_other_frrem_accum_b / + hcd->hfnum_other_samples_b : 0); +#endif +} + +#endif /* DWC_DEVICE_ONLY */ diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd.h b/drivers/usb/host/dwc_otg/dwc_otg_hcd.h new file mode 100644 index 0000000000000000000000000000000000000000..4539cd7b802d3e49ac9a6cb3f1d88b475a1ace16 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd.h @@ -0,0 +1,868 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd.h $ + * $Revision: #58 $ + * $Date: 2011/09/15 $ + * $Change: 1846647 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ +#ifndef DWC_DEVICE_ONLY +#ifndef __DWC_HCD_H__ +#define __DWC_HCD_H__ + +#include "dwc_otg_os_dep.h" +#include "usb.h" +#include "dwc_otg_hcd_if.h" +#include "dwc_otg_core_if.h" +#include "dwc_list.h" +#include "dwc_otg_cil.h" +#include "dwc_otg_fiq_fsm.h" +#include "dwc_otg_driver.h" + + +/** + * @file + * + * This file contains the structures, constants, and interfaces for + * the Host Contoller Driver (HCD). + * + * The Host Controller Driver (HCD) is responsible for translating requests + * from the USB Driver into the appropriate actions on the DWC_otg controller. + * It isolates the USBD from the specifics of the controller by providing an + * API to the USBD. + */ + +struct dwc_otg_hcd_pipe_info { + uint8_t dev_addr; + uint8_t ep_num; + uint8_t pipe_type; + uint8_t pipe_dir; + uint16_t mps; +}; + +struct dwc_otg_hcd_iso_packet_desc { + uint32_t offset; + uint32_t length; + uint32_t actual_length; + uint32_t status; +}; + +struct dwc_otg_qtd; + +struct dwc_otg_hcd_urb { + void *priv; + struct dwc_otg_qtd *qtd; + void *buf; + dwc_dma_t dma; + void *setup_packet; + dwc_dma_t setup_dma; + uint32_t length; + uint32_t actual_length; + uint32_t status; + uint32_t error_count; + uint32_t packet_count; + uint32_t flags; + uint16_t interval; + struct dwc_otg_hcd_pipe_info pipe_info; + struct dwc_otg_hcd_iso_packet_desc iso_descs[0]; +}; + +static inline uint8_t dwc_otg_hcd_get_ep_num(struct dwc_otg_hcd_pipe_info *pipe) +{ + return pipe->ep_num; +} + +static inline uint8_t dwc_otg_hcd_get_pipe_type(struct dwc_otg_hcd_pipe_info + *pipe) +{ + return pipe->pipe_type; +} + +static inline uint16_t dwc_otg_hcd_get_mps(struct dwc_otg_hcd_pipe_info *pipe) +{ + return pipe->mps; +} + +static inline uint8_t dwc_otg_hcd_get_dev_addr(struct dwc_otg_hcd_pipe_info + *pipe) +{ + return pipe->dev_addr; +} + +static inline uint8_t dwc_otg_hcd_is_pipe_isoc(struct dwc_otg_hcd_pipe_info + *pipe) +{ + return (pipe->pipe_type == UE_ISOCHRONOUS); +} + +static inline uint8_t dwc_otg_hcd_is_pipe_int(struct dwc_otg_hcd_pipe_info + *pipe) +{ + return (pipe->pipe_type == UE_INTERRUPT); +} + +static inline uint8_t dwc_otg_hcd_is_pipe_bulk(struct dwc_otg_hcd_pipe_info + *pipe) +{ + return (pipe->pipe_type == UE_BULK); +} + +static inline uint8_t dwc_otg_hcd_is_pipe_control(struct dwc_otg_hcd_pipe_info + *pipe) +{ + return (pipe->pipe_type == UE_CONTROL); +} + +static inline uint8_t dwc_otg_hcd_is_pipe_in(struct dwc_otg_hcd_pipe_info *pipe) +{ + return (pipe->pipe_dir == UE_DIR_IN); +} + +static inline uint8_t dwc_otg_hcd_is_pipe_out(struct dwc_otg_hcd_pipe_info + *pipe) +{ + return (!dwc_otg_hcd_is_pipe_in(pipe)); +} + +static inline void dwc_otg_hcd_fill_pipe(struct dwc_otg_hcd_pipe_info *pipe, + uint8_t devaddr, uint8_t ep_num, + uint8_t pipe_type, uint8_t pipe_dir, + uint16_t mps) +{ + pipe->dev_addr = devaddr; + pipe->ep_num = ep_num; + pipe->pipe_type = pipe_type; + pipe->pipe_dir = pipe_dir; + pipe->mps = mps; +} + +/** + * Phases for control transfers. + */ +typedef enum dwc_otg_control_phase { + DWC_OTG_CONTROL_SETUP, + DWC_OTG_CONTROL_DATA, + DWC_OTG_CONTROL_STATUS +} dwc_otg_control_phase_e; + +/** Transaction types. */ +typedef enum dwc_otg_transaction_type { + DWC_OTG_TRANSACTION_NONE = 0, + DWC_OTG_TRANSACTION_PERIODIC = 1, + DWC_OTG_TRANSACTION_NON_PERIODIC = 2, + DWC_OTG_TRANSACTION_ALL = DWC_OTG_TRANSACTION_PERIODIC + DWC_OTG_TRANSACTION_NON_PERIODIC +} dwc_otg_transaction_type_e; + +struct dwc_otg_qh; + +/** + * A Queue Transfer Descriptor (QTD) holds the state of a bulk, control, + * interrupt, or isochronous transfer. A single QTD is created for each URB + * (of one of these types) submitted to the HCD. The transfer associated with + * a QTD may require one or multiple transactions. + * + * A QTD is linked to a Queue Head, which is entered in either the + * non-periodic or periodic schedule for execution. When a QTD is chosen for + * execution, some or all of its transactions may be executed. After + * execution, the state of the QTD is updated. The QTD may be retired if all + * its transactions are complete or if an error occurred. Otherwise, it + * remains in the schedule so more transactions can be executed later. + */ +typedef struct dwc_otg_qtd { + /** + * Determines the PID of the next data packet for the data phase of + * control transfers. Ignored for other transfer types.
+ * One of the following values: + * - DWC_OTG_HC_PID_DATA0 + * - DWC_OTG_HC_PID_DATA1 + */ + uint8_t data_toggle; + + /** Current phase for control transfers (Setup, Data, or Status). */ + dwc_otg_control_phase_e control_phase; + + /** Keep track of the current split type + * for FS/LS endpoints on a HS Hub */ + uint8_t complete_split; + + /** How many bytes transferred during SSPLIT OUT */ + uint32_t ssplit_out_xfer_count; + + /** + * Holds the number of bus errors that have occurred for a transaction + * within this transfer. + */ + uint8_t error_count; + + /** + * Index of the next frame descriptor for an isochronous transfer. A + * frame descriptor describes the buffer position and length of the + * data to be transferred in the next scheduled (micro)frame of an + * isochronous transfer. It also holds status for that transaction. + * The frame index starts at 0. + */ + uint16_t isoc_frame_index; + + /** Position of the ISOC split on full/low speed */ + uint8_t isoc_split_pos; + + /** Position of the ISOC split in the buffer for the current frame */ + uint16_t isoc_split_offset; + + /** URB for this transfer */ + struct dwc_otg_hcd_urb *urb; + + struct dwc_otg_qh *qh; + + /** This list of QTDs */ + DWC_CIRCLEQ_ENTRY(dwc_otg_qtd) qtd_list_entry; + + /** Indicates if this QTD is currently processed by HW. */ + uint8_t in_process; + + /** Number of DMA descriptors for this QTD */ + uint8_t n_desc; + + /** + * Last activated frame(packet) index. + * Used in Descriptor DMA mode only. + */ + uint16_t isoc_frame_index_last; + +} dwc_otg_qtd_t; + +DWC_CIRCLEQ_HEAD(dwc_otg_qtd_list, dwc_otg_qtd); + +/** + * A Queue Head (QH) holds the static characteristics of an endpoint and + * maintains a list of transfers (QTDs) for that endpoint. A QH structure may + * be entered in either the non-periodic or periodic schedule. + */ +typedef struct dwc_otg_qh { + /** + * Endpoint type. + * One of the following values: + * - UE_CONTROL + * - UE_BULK + * - UE_INTERRUPT + * - UE_ISOCHRONOUS + */ + uint8_t ep_type; + uint8_t ep_is_in; + + /** wMaxPacketSize Field of Endpoint Descriptor. */ + uint16_t maxp; + + /** + * Device speed. + * One of the following values: + * - DWC_OTG_EP_SPEED_LOW + * - DWC_OTG_EP_SPEED_FULL + * - DWC_OTG_EP_SPEED_HIGH + */ + uint8_t dev_speed; + + /** + * Determines the PID of the next data packet for non-control + * transfers. Ignored for control transfers.
+ * One of the following values: + * - DWC_OTG_HC_PID_DATA0 + * - DWC_OTG_HC_PID_DATA1 + */ + uint8_t data_toggle; + + /** Ping state if 1. */ + uint8_t ping_state; + + /** + * List of QTDs for this QH. + */ + struct dwc_otg_qtd_list qtd_list; + + /** Host channel currently processing transfers for this QH. */ + struct dwc_hc *channel; + + /** Full/low speed endpoint on high-speed hub requires split. */ + uint8_t do_split; + + /** @name Periodic schedule information */ + /** @{ */ + + /** Bandwidth in microseconds per (micro)frame. */ + uint16_t usecs; + + /** Interval between transfers in (micro)frames. */ + uint16_t interval; + + /** + * (micro)frame to initialize a periodic transfer. The transfer + * executes in the following (micro)frame. + */ + uint16_t sched_frame; + + /* + ** Frame a NAK was received on this queue head, used to minimise NAK retransmission + */ + uint16_t nak_frame; + + /** (micro)frame at which last start split was initialized. */ + uint16_t start_split_frame; + + /** @} */ + + /** + * Used instead of original buffer if + * it(physical address) is not dword-aligned. + */ + uint8_t *dw_align_buf; + dwc_dma_t dw_align_buf_dma; + + /** Entry for QH in either the periodic or non-periodic schedule. */ + dwc_list_link_t qh_list_entry; + + /** @name Descriptor DMA support */ + /** @{ */ + + /** Descriptor List. */ + dwc_otg_host_dma_desc_t *desc_list; + + /** Descriptor List physical address. */ + dwc_dma_t desc_list_dma; + + /** + * Xfer Bytes array. + * Each element corresponds to a descriptor and indicates + * original XferSize size value for the descriptor. + */ + uint32_t *n_bytes; + + /** Actual number of transfer descriptors in a list. */ + uint16_t ntd; + + /** First activated isochronous transfer descriptor index. */ + uint8_t td_first; + /** Last activated isochronous transfer descriptor index. */ + uint8_t td_last; + + /** @} */ + + + uint16_t speed; + uint16_t frame_usecs[8]; + + uint32_t skip_count; +} dwc_otg_qh_t; + +DWC_CIRCLEQ_HEAD(hc_list, dwc_hc); + +typedef struct urb_tq_entry { + struct urb *urb; + DWC_TAILQ_ENTRY(urb_tq_entry) urb_tq_entries; +} urb_tq_entry_t; + +DWC_TAILQ_HEAD(urb_list, urb_tq_entry); + +/** + * This structure holds the state of the HCD, including the non-periodic and + * periodic schedules. + */ +struct dwc_otg_hcd { + /** The DWC otg device pointer */ + struct dwc_otg_device *otg_dev; + /** DWC OTG Core Interface Layer */ + dwc_otg_core_if_t *core_if; + + /** Function HCD driver callbacks */ + struct dwc_otg_hcd_function_ops *fops; + + /** Internal DWC HCD Flags */ + volatile union dwc_otg_hcd_internal_flags { + uint32_t d32; + struct { + unsigned port_connect_status_change:1; + unsigned port_connect_status:1; + unsigned port_reset_change:1; + unsigned port_enable_change:1; + unsigned port_suspend_change:1; + unsigned port_over_current_change:1; + unsigned port_l1_change:1; + unsigned reserved:26; + } b; + } flags; + + /** + * Inactive items in the non-periodic schedule. This is a list of + * Queue Heads. Transfers associated with these Queue Heads are not + * currently assigned to a host channel. + */ + dwc_list_link_t non_periodic_sched_inactive; + + /** + * Active items in the non-periodic schedule. This is a list of + * Queue Heads. Transfers associated with these Queue Heads are + * currently assigned to a host channel. + */ + dwc_list_link_t non_periodic_sched_active; + + /** + * Pointer to the next Queue Head to process in the active + * non-periodic schedule. + */ + dwc_list_link_t *non_periodic_qh_ptr; + + /** + * Inactive items in the periodic schedule. This is a list of QHs for + * periodic transfers that are _not_ scheduled for the next frame. + * Each QH in the list has an interval counter that determines when it + * needs to be scheduled for execution. This scheduling mechanism + * allows only a simple calculation for periodic bandwidth used (i.e. + * must assume that all periodic transfers may need to execute in the + * same frame). However, it greatly simplifies scheduling and should + * be sufficient for the vast majority of OTG hosts, which need to + * connect to a small number of peripherals at one time. + * + * Items move from this list to periodic_sched_ready when the QH + * interval counter is 0 at SOF. + */ + dwc_list_link_t periodic_sched_inactive; + + /** + * List of periodic QHs that are ready for execution in the next + * frame, but have not yet been assigned to host channels. + * + * Items move from this list to periodic_sched_assigned as host + * channels become available during the current frame. + */ + dwc_list_link_t periodic_sched_ready; + + /** + * List of periodic QHs to be executed in the next frame that are + * assigned to host channels. + * + * Items move from this list to periodic_sched_queued as the + * transactions for the QH are queued to the DWC_otg controller. + */ + dwc_list_link_t periodic_sched_assigned; + + /** + * List of periodic QHs that have been queued for execution. + * + * Items move from this list to either periodic_sched_inactive or + * periodic_sched_ready when the channel associated with the transfer + * is released. If the interval for the QH is 1, the item moves to + * periodic_sched_ready because it must be rescheduled for the next + * frame. Otherwise, the item moves to periodic_sched_inactive. + */ + dwc_list_link_t periodic_sched_queued; + + /** + * Total bandwidth claimed so far for periodic transfers. This value + * is in microseconds per (micro)frame. The assumption is that all + * periodic transfers may occur in the same (micro)frame. + */ + uint16_t periodic_usecs; + + /** + * Total bandwidth claimed so far for all periodic transfers + * in a frame. + * This will include a mixture of HS and FS transfers. + * Units are microseconds per (micro)frame. + * We have a budget per frame and have to schedule + * transactions accordingly. + * Watch out for the fact that things are actually scheduled for the + * "next frame". + */ + uint16_t frame_usecs[8]; + + + /** + * Frame number read from the core at SOF. The value ranges from 0 to + * DWC_HFNUM_MAX_FRNUM. + */ + uint16_t frame_number; + + /** + * Count of periodic QHs, if using several eps. For SOF enable/disable. + */ + uint16_t periodic_qh_count; + + /** + * Free host channels in the controller. This is a list of + * dwc_hc_t items. + */ + struct hc_list free_hc_list; + /** + * Number of host channels assigned to periodic transfers. Currently + * assuming that there is a dedicated host channel for each periodic + * transaction and at least one host channel available for + * non-periodic transactions. + */ + int periodic_channels; /* microframe_schedule==0 */ + + /** + * Number of host channels assigned to non-periodic transfers. + */ + int non_periodic_channels; /* microframe_schedule==0 */ + + /** + * Number of host channels assigned to non-periodic transfers. + */ + int available_host_channels; + + /** + * Array of pointers to the host channel descriptors. Allows accessing + * a host channel descriptor given the host channel number. This is + * useful in interrupt handlers. + */ + struct dwc_hc *hc_ptr_array[MAX_EPS_CHANNELS]; + + /** + * Buffer to use for any data received during the status phase of a + * control transfer. Normally no data is transferred during the status + * phase. This buffer is used as a bit bucket. + */ + uint8_t *status_buf; + + /** + * DMA address for status_buf. + */ + dma_addr_t status_buf_dma; +#define DWC_OTG_HCD_STATUS_BUF_SIZE 64 + + /** + * Connection timer. An OTG host must display a message if the device + * does not connect. Started when the VBus power is turned on via + * sysfs attribute "buspower". + */ + dwc_timer_t *conn_timer; + + /* Tasket to do a reset */ + dwc_tasklet_t *reset_tasklet; + + dwc_tasklet_t *completion_tasklet; + struct urb_list completed_urb_list; + + /* */ + dwc_spinlock_t *lock; + dwc_spinlock_t *channel_lock; + /** + * Private data that could be used by OS wrapper. + */ + void *priv; + + uint8_t otg_port; + + /** Frame List */ + uint32_t *frame_list; + + /** Hub - Port assignment */ + int hub_port[128]; +#ifdef FIQ_DEBUG + int hub_port_alloc[2048]; +#endif + + /** Frame List DMA address */ + dma_addr_t frame_list_dma; + + struct fiq_stack *fiq_stack; + struct fiq_state *fiq_state; + + /** Virtual address for split transaction DMA bounce buffers */ + struct fiq_dma_blob *fiq_dmab; + +#ifdef DEBUG + uint32_t frrem_samples; + uint64_t frrem_accum; + + uint32_t hfnum_7_samples_a; + uint64_t hfnum_7_frrem_accum_a; + uint32_t hfnum_0_samples_a; + uint64_t hfnum_0_frrem_accum_a; + uint32_t hfnum_other_samples_a; + uint64_t hfnum_other_frrem_accum_a; + + uint32_t hfnum_7_samples_b; + uint64_t hfnum_7_frrem_accum_b; + uint32_t hfnum_0_samples_b; + uint64_t hfnum_0_frrem_accum_b; + uint32_t hfnum_other_samples_b; + uint64_t hfnum_other_frrem_accum_b; +#endif +}; + +static inline struct device *dwc_otg_hcd_to_dev(struct dwc_otg_hcd *hcd) +{ + return &hcd->otg_dev->os_dep.platformdev->dev; +} + +/** @name Transaction Execution Functions */ +/** @{ */ +extern dwc_otg_transaction_type_e dwc_otg_hcd_select_transactions(dwc_otg_hcd_t + * hcd); +extern void dwc_otg_hcd_queue_transactions(dwc_otg_hcd_t * hcd, + dwc_otg_transaction_type_e tr_type); + +int dwc_otg_hcd_allocate_port(dwc_otg_hcd_t * hcd, dwc_otg_qh_t *qh); +void dwc_otg_hcd_release_port(dwc_otg_hcd_t * dwc_otg_hcd, dwc_otg_qh_t *qh); + +extern int fiq_fsm_queue_transaction(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh); +extern int fiq_fsm_transaction_suitable(dwc_otg_qh_t *qh); +extern void dwc_otg_cleanup_fiq_channel(dwc_otg_hcd_t *hcd, uint32_t num); + +/** @} */ + +/** @name Interrupt Handler Functions */ +/** @{ */ +extern int32_t dwc_otg_hcd_handle_intr(dwc_otg_hcd_t * dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd_t * dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_rx_status_q_level_intr(dwc_otg_hcd_t * + dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_np_tx_fifo_empty_intr(dwc_otg_hcd_t * + dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_perio_tx_fifo_empty_intr(dwc_otg_hcd_t * + dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_incomplete_periodic_intr(dwc_otg_hcd_t * + dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_port_intr(dwc_otg_hcd_t * dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_conn_id_status_change_intr(dwc_otg_hcd_t * + dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_disconnect_intr(dwc_otg_hcd_t * dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_hc_intr(dwc_otg_hcd_t * dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_hc_n_intr(dwc_otg_hcd_t * dwc_otg_hcd, + uint32_t num); +extern int32_t dwc_otg_hcd_handle_session_req_intr(dwc_otg_hcd_t * dwc_otg_hcd); +extern int32_t dwc_otg_hcd_handle_wakeup_detected_intr(dwc_otg_hcd_t * + dwc_otg_hcd); +/** @} */ + +/** @name Schedule Queue Functions */ +/** @{ */ + +/* Implemented in dwc_otg_hcd_queue.c */ +extern dwc_otg_qh_t *dwc_otg_hcd_qh_create(dwc_otg_hcd_t * hcd, + dwc_otg_hcd_urb_t * urb, int atomic_alloc); +extern void dwc_otg_hcd_qh_free(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh); +extern int dwc_otg_hcd_qh_add(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh); +extern void dwc_otg_hcd_qh_remove(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh); +extern void dwc_otg_hcd_qh_deactivate(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh, + int sched_csplit); + +/** Remove and free a QH */ +static inline void dwc_otg_hcd_qh_remove_and_free(dwc_otg_hcd_t * hcd, + dwc_otg_qh_t * qh) +{ + dwc_irqflags_t flags; + DWC_SPINLOCK_IRQSAVE(hcd->lock, &flags); + dwc_otg_hcd_qh_remove(hcd, qh); + DWC_SPINUNLOCK_IRQRESTORE(hcd->lock, flags); + dwc_otg_hcd_qh_free(hcd, qh); +} + +/** Allocates memory for a QH structure. + * @return Returns the memory allocate or NULL on error. */ +static inline dwc_otg_qh_t *dwc_otg_hcd_qh_alloc(int atomic_alloc) +{ + if (atomic_alloc) + return (dwc_otg_qh_t *) DWC_ALLOC_ATOMIC(sizeof(dwc_otg_qh_t)); + else + return (dwc_otg_qh_t *) DWC_ALLOC(sizeof(dwc_otg_qh_t)); +} + +extern dwc_otg_qtd_t *dwc_otg_hcd_qtd_create(dwc_otg_hcd_urb_t * urb, + int atomic_alloc); +extern void dwc_otg_hcd_qtd_init(dwc_otg_qtd_t * qtd, dwc_otg_hcd_urb_t * urb); +extern int dwc_otg_hcd_qtd_add(dwc_otg_qtd_t * qtd, dwc_otg_hcd_t * dwc_otg_hcd, + dwc_otg_qh_t ** qh, int atomic_alloc); + +/** Allocates memory for a QTD structure. + * @return Returns the memory allocate or NULL on error. */ +static inline dwc_otg_qtd_t *dwc_otg_hcd_qtd_alloc(int atomic_alloc) +{ + if (atomic_alloc) + return (dwc_otg_qtd_t *) DWC_ALLOC_ATOMIC(sizeof(dwc_otg_qtd_t)); + else + return (dwc_otg_qtd_t *) DWC_ALLOC(sizeof(dwc_otg_qtd_t)); +} + +/** Frees the memory for a QTD structure. QTD should already be removed from + * list. + * @param qtd QTD to free.*/ +static inline void dwc_otg_hcd_qtd_free(dwc_otg_qtd_t * qtd) +{ + DWC_FREE(qtd); +} + +/** Removes a QTD from list. + * @param hcd HCD instance. + * @param qtd QTD to remove from list. + * @param qh QTD belongs to. + */ +static inline void dwc_otg_hcd_qtd_remove(dwc_otg_hcd_t * hcd, + dwc_otg_qtd_t * qtd, + dwc_otg_qh_t * qh) +{ + DWC_CIRCLEQ_REMOVE(&qh->qtd_list, qtd, qtd_list_entry); +} + +/** Remove and free a QTD + * Need to disable IRQ and hold hcd lock while calling this function out of + * interrupt servicing chain */ +static inline void dwc_otg_hcd_qtd_remove_and_free(dwc_otg_hcd_t * hcd, + dwc_otg_qtd_t * qtd, + dwc_otg_qh_t * qh) +{ + dwc_otg_hcd_qtd_remove(hcd, qtd, qh); + dwc_otg_hcd_qtd_free(qtd); +} + +/** @} */ + +/** @name Descriptor DMA Supporting Functions */ +/** @{ */ + +extern void dwc_otg_hcd_start_xfer_ddma(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh); +extern void dwc_otg_hcd_complete_xfer_ddma(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_halt_status_e halt_status); + +extern int dwc_otg_hcd_qh_init_ddma(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh); +extern void dwc_otg_hcd_qh_free_ddma(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh); + +/** @} */ + +/** @name Internal Functions */ +/** @{ */ +dwc_otg_qh_t *dwc_urb_to_qh(dwc_otg_hcd_urb_t * urb); +/** @} */ + +#ifdef CONFIG_USB_DWC_OTG_LPM +extern int dwc_otg_hcd_get_hc_for_lpm_tran(dwc_otg_hcd_t * hcd, + uint8_t devaddr); +extern void dwc_otg_hcd_free_hc_from_lpm(dwc_otg_hcd_t * hcd); +#endif + +/** Gets the QH that contains the list_head */ +#define dwc_list_to_qh(_list_head_ptr_) container_of(_list_head_ptr_, dwc_otg_qh_t, qh_list_entry) + +/** Gets the QTD that contains the list_head */ +#define dwc_list_to_qtd(_list_head_ptr_) container_of(_list_head_ptr_, dwc_otg_qtd_t, qtd_list_entry) + +/** Check if QH is non-periodic */ +#define dwc_qh_is_non_per(_qh_ptr_) ((_qh_ptr_->ep_type == UE_BULK) || \ + (_qh_ptr_->ep_type == UE_CONTROL)) + +/** High bandwidth multiplier as encoded in highspeed endpoint descriptors */ +#define dwc_hb_mult(wMaxPacketSize) (1 + (((wMaxPacketSize) >> 11) & 0x03)) + +/** Packet size for any kind of endpoint descriptor */ +#define dwc_max_packet(wMaxPacketSize) ((wMaxPacketSize) & 0x07ff) + +/** + * Returns true if _frame1 is less than or equal to _frame2. The comparison is + * done modulo DWC_HFNUM_MAX_FRNUM. This accounts for the rollover of the + * frame number when the max frame number is reached. + */ +static inline int dwc_frame_num_le(uint16_t frame1, uint16_t frame2) +{ + return ((frame2 - frame1) & DWC_HFNUM_MAX_FRNUM) <= + (DWC_HFNUM_MAX_FRNUM >> 1); +} + +/** + * Returns true if _frame1 is greater than _frame2. The comparison is done + * modulo DWC_HFNUM_MAX_FRNUM. This accounts for the rollover of the frame + * number when the max frame number is reached. + */ +static inline int dwc_frame_num_gt(uint16_t frame1, uint16_t frame2) +{ + return (frame1 != frame2) && + (((frame1 - frame2) & DWC_HFNUM_MAX_FRNUM) < + (DWC_HFNUM_MAX_FRNUM >> 1)); +} + +/** + * Increments _frame by the amount specified by _inc. The addition is done + * modulo DWC_HFNUM_MAX_FRNUM. Returns the incremented value. + */ +static inline uint16_t dwc_frame_num_inc(uint16_t frame, uint16_t inc) +{ + return (frame + inc) & DWC_HFNUM_MAX_FRNUM; +} + +static inline uint16_t dwc_full_frame_num(uint16_t frame) +{ + return (frame & DWC_HFNUM_MAX_FRNUM) >> 3; +} + +static inline uint16_t dwc_micro_frame_num(uint16_t frame) +{ + return frame & 0x7; +} + +void dwc_otg_hcd_save_data_toggle(dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_qtd_t * qtd); + +#ifdef DEBUG +/** + * Macro to sample the remaining PHY clocks left in the current frame. This + * may be used during debugging to determine the average time it takes to + * execute sections of code. There are two possible sample points, "a" and + * "b", so the _letter argument must be one of these values. + * + * To dump the average sample times, read the "hcd_frrem" sysfs attribute. For + * example, "cat /sys/devices/lm0/hcd_frrem". + */ +#define dwc_sample_frrem(_hcd, _qh, _letter) \ +{ \ + hfnum_data_t hfnum; \ + dwc_otg_qtd_t *qtd; \ + qtd = list_entry(_qh->qtd_list.next, dwc_otg_qtd_t, qtd_list_entry); \ + if (usb_pipeint(qtd->urb->pipe) && _qh->start_split_frame != 0 && !qtd->complete_split) { \ + hfnum.d32 = DWC_READ_REG32(&_hcd->core_if->host_if->host_global_regs->hfnum); \ + switch (hfnum.b.frnum & 0x7) { \ + case 7: \ + _hcd->hfnum_7_samples_##_letter++; \ + _hcd->hfnum_7_frrem_accum_##_letter += hfnum.b.frrem; \ + break; \ + case 0: \ + _hcd->hfnum_0_samples_##_letter++; \ + _hcd->hfnum_0_frrem_accum_##_letter += hfnum.b.frrem; \ + break; \ + default: \ + _hcd->hfnum_other_samples_##_letter++; \ + _hcd->hfnum_other_frrem_accum_##_letter += hfnum.b.frrem; \ + break; \ + } \ + } \ +} +#else +#define dwc_sample_frrem(_hcd, _qh, _letter) +#endif +#endif +#endif /* DWC_DEVICE_ONLY */ diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_ddma.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd_ddma.c new file mode 100644 index 0000000000000000000000000000000000000000..126e99ab2fc43f11d89a08ff0476181ead84029f --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_ddma.c @@ -0,0 +1,1139 @@ +/*========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd_ddma.c $ + * $Revision: #10 $ + * $Date: 2011/10/20 $ + * $Change: 1869464 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ +#ifndef DWC_DEVICE_ONLY + +/** @file + * This file contains Descriptor DMA support implementation for host mode. + */ + +#include "dwc_otg_hcd.h" +#include "dwc_otg_regs.h" + +extern bool microframe_schedule; + +static inline uint8_t frame_list_idx(uint16_t frame) +{ + return (frame & (MAX_FRLIST_EN_NUM - 1)); +} + +static inline uint16_t desclist_idx_inc(uint16_t idx, uint16_t inc, uint8_t speed) +{ + return (idx + inc) & + (((speed == + DWC_OTG_EP_SPEED_HIGH) ? MAX_DMA_DESC_NUM_HS_ISOC : + MAX_DMA_DESC_NUM_GENERIC) - 1); +} + +static inline uint16_t desclist_idx_dec(uint16_t idx, uint16_t inc, uint8_t speed) +{ + return (idx - inc) & + (((speed == + DWC_OTG_EP_SPEED_HIGH) ? MAX_DMA_DESC_NUM_HS_ISOC : + MAX_DMA_DESC_NUM_GENERIC) - 1); +} + +static inline uint16_t max_desc_num(dwc_otg_qh_t * qh) +{ + return (((qh->ep_type == UE_ISOCHRONOUS) + && (qh->dev_speed == DWC_OTG_EP_SPEED_HIGH)) + ? MAX_DMA_DESC_NUM_HS_ISOC : MAX_DMA_DESC_NUM_GENERIC); +} +static inline uint16_t frame_incr_val(dwc_otg_qh_t * qh) +{ + return ((qh->dev_speed == DWC_OTG_EP_SPEED_HIGH) + ? ((qh->interval + 8 - 1) / 8) + : qh->interval); +} + +static int desc_list_alloc(struct device *dev, dwc_otg_qh_t * qh) +{ + int retval = 0; + + qh->desc_list = (dwc_otg_host_dma_desc_t *) + DWC_DMA_ALLOC(dev, sizeof(dwc_otg_host_dma_desc_t) * max_desc_num(qh), + &qh->desc_list_dma); + + if (!qh->desc_list) { + retval = -DWC_E_NO_MEMORY; + DWC_ERROR("%s: DMA descriptor list allocation failed\n", __func__); + + } + + dwc_memset(qh->desc_list, 0x00, + sizeof(dwc_otg_host_dma_desc_t) * max_desc_num(qh)); + + qh->n_bytes = + (uint32_t *) DWC_ALLOC(sizeof(uint32_t) * max_desc_num(qh)); + + if (!qh->n_bytes) { + retval = -DWC_E_NO_MEMORY; + DWC_ERROR + ("%s: Failed to allocate array for descriptors' size actual values\n", + __func__); + + } + return retval; + +} + +static void desc_list_free(struct device *dev, dwc_otg_qh_t * qh) +{ + if (qh->desc_list) { + DWC_DMA_FREE(dev, max_desc_num(qh), qh->desc_list, + qh->desc_list_dma); + qh->desc_list = NULL; + } + + if (qh->n_bytes) { + DWC_FREE(qh->n_bytes); + qh->n_bytes = NULL; + } +} + +static int frame_list_alloc(dwc_otg_hcd_t * hcd) +{ + struct device *dev = dwc_otg_hcd_to_dev(hcd); + int retval = 0; + + if (hcd->frame_list) + return 0; + + hcd->frame_list = DWC_DMA_ALLOC(dev, 4 * MAX_FRLIST_EN_NUM, + &hcd->frame_list_dma); + if (!hcd->frame_list) { + retval = -DWC_E_NO_MEMORY; + DWC_ERROR("%s: Frame List allocation failed\n", __func__); + } + + dwc_memset(hcd->frame_list, 0x00, 4 * MAX_FRLIST_EN_NUM); + + return retval; +} + +static void frame_list_free(dwc_otg_hcd_t * hcd) +{ + struct device *dev = dwc_otg_hcd_to_dev(hcd); + + if (!hcd->frame_list) + return; + + DWC_DMA_FREE(dev, 4 * MAX_FRLIST_EN_NUM, hcd->frame_list, hcd->frame_list_dma); + hcd->frame_list = NULL; +} + +static void per_sched_enable(dwc_otg_hcd_t * hcd, uint16_t fr_list_en) +{ + + hcfg_data_t hcfg; + + hcfg.d32 = DWC_READ_REG32(&hcd->core_if->host_if->host_global_regs->hcfg); + + if (hcfg.b.perschedena) { + /* already enabled */ + return; + } + + DWC_WRITE_REG32(&hcd->core_if->host_if->host_global_regs->hflbaddr, + hcd->frame_list_dma); + + switch (fr_list_en) { + case 64: + hcfg.b.frlisten = 3; + break; + case 32: + hcfg.b.frlisten = 2; + break; + case 16: + hcfg.b.frlisten = 1; + break; + case 8: + hcfg.b.frlisten = 0; + break; + default: + break; + } + + hcfg.b.perschedena = 1; + + DWC_DEBUGPL(DBG_HCD, "Enabling Periodic schedule\n"); + DWC_WRITE_REG32(&hcd->core_if->host_if->host_global_regs->hcfg, hcfg.d32); + +} + +static void per_sched_disable(dwc_otg_hcd_t * hcd) +{ + hcfg_data_t hcfg; + + hcfg.d32 = DWC_READ_REG32(&hcd->core_if->host_if->host_global_regs->hcfg); + + if (!hcfg.b.perschedena) { + /* already disabled */ + return; + } + hcfg.b.perschedena = 0; + + DWC_DEBUGPL(DBG_HCD, "Disabling Periodic schedule\n"); + DWC_WRITE_REG32(&hcd->core_if->host_if->host_global_regs->hcfg, hcfg.d32); +} + +/* + * Activates/Deactivates FrameList entries for the channel + * based on endpoint servicing period. + */ +void update_frame_list(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh, uint8_t enable) +{ + uint16_t i, j, inc; + dwc_hc_t *hc = NULL; + + if (!qh->channel) { + DWC_ERROR("qh->channel = %p", qh->channel); + return; + } + + if (!hcd) { + DWC_ERROR("------hcd = %p", hcd); + return; + } + + if (!hcd->frame_list) { + DWC_ERROR("-------hcd->frame_list = %p", hcd->frame_list); + return; + } + + hc = qh->channel; + inc = frame_incr_val(qh); + if (qh->ep_type == UE_ISOCHRONOUS) + i = frame_list_idx(qh->sched_frame); + else + i = 0; + + j = i; + do { + if (enable) + hcd->frame_list[j] |= (1 << hc->hc_num); + else + hcd->frame_list[j] &= ~(1 << hc->hc_num); + j = (j + inc) & (MAX_FRLIST_EN_NUM - 1); + } + while (j != i); + if (!enable) + return; + hc->schinfo = 0; + if (qh->channel->speed == DWC_OTG_EP_SPEED_HIGH) { + j = 1; + /* TODO - check this */ + inc = (8 + qh->interval - 1) / qh->interval; + for (i = 0; i < inc; i++) { + hc->schinfo |= j; + j = j << qh->interval; + } + } else { + hc->schinfo = 0xff; + } +} + +#if 1 +void dump_frame_list(dwc_otg_hcd_t * hcd) +{ + int i = 0; + DWC_PRINTF("--FRAME LIST (hex) --\n"); + for (i = 0; i < MAX_FRLIST_EN_NUM; i++) { + DWC_PRINTF("%x\t", hcd->frame_list[i]); + if (!(i % 8) && i) + DWC_PRINTF("\n"); + } + DWC_PRINTF("\n----\n"); + +} +#endif + +static void release_channel_ddma(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) +{ + dwc_irqflags_t flags; + dwc_spinlock_t *channel_lock = hcd->channel_lock; + + dwc_hc_t *hc = qh->channel; + if (dwc_qh_is_non_per(qh)) { + DWC_SPINLOCK_IRQSAVE(channel_lock, &flags); + if (!microframe_schedule) + hcd->non_periodic_channels--; + else + hcd->available_host_channels++; + DWC_SPINUNLOCK_IRQRESTORE(channel_lock, flags); + } else + update_frame_list(hcd, qh, 0); + + /* + * The condition is added to prevent double cleanup try in case of device + * disconnect. See channel cleanup in dwc_otg_hcd_disconnect_cb(). + */ + if (hc->qh) { + dwc_otg_hc_cleanup(hcd->core_if, hc); + DWC_CIRCLEQ_INSERT_TAIL(&hcd->free_hc_list, hc, hc_list_entry); + hc->qh = NULL; + } + + qh->channel = NULL; + qh->ntd = 0; + + if (qh->desc_list) { + dwc_memset(qh->desc_list, 0x00, + sizeof(dwc_otg_host_dma_desc_t) * max_desc_num(qh)); + } +} + +/** + * Initializes a QH structure's Descriptor DMA related members. + * Allocates memory for descriptor list. + * On first periodic QH, allocates memory for FrameList + * and enables periodic scheduling. + * + * @param hcd The HCD state structure for the DWC OTG controller. + * @param qh The QH to init. + * + * @return 0 if successful, negative error code otherwise. + */ +int dwc_otg_hcd_qh_init_ddma(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) +{ + struct device *dev = dwc_otg_hcd_to_dev(hcd); + int retval = 0; + + if (qh->do_split) { + DWC_ERROR("SPLIT Transfers are not supported in Descriptor DMA.\n"); + return -1; + } + + retval = desc_list_alloc(dev, qh); + + if ((retval == 0) + && (qh->ep_type == UE_ISOCHRONOUS || qh->ep_type == UE_INTERRUPT)) { + if (!hcd->frame_list) { + retval = frame_list_alloc(hcd); + /* Enable periodic schedule on first periodic QH */ + if (retval == 0) + per_sched_enable(hcd, MAX_FRLIST_EN_NUM); + } + } + + qh->ntd = 0; + + return retval; +} + +/** + * Frees descriptor list memory associated with the QH. + * If QH is periodic and the last, frees FrameList memory + * and disables periodic scheduling. + * + * @param hcd The HCD state structure for the DWC OTG controller. + * @param qh The QH to init. + */ +void dwc_otg_hcd_qh_free_ddma(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) +{ + struct device *dev = dwc_otg_hcd_to_dev(hcd); + + desc_list_free(dev, qh); + + /* + * Channel still assigned due to some reasons. + * Seen on Isoc URB dequeue. Channel halted but no subsequent + * ChHalted interrupt to release the channel. Afterwards + * when it comes here from endpoint disable routine + * channel remains assigned. + */ + if (qh->channel) + release_channel_ddma(hcd, qh); + + if ((qh->ep_type == UE_ISOCHRONOUS || qh->ep_type == UE_INTERRUPT) + && (microframe_schedule || !hcd->periodic_channels) && hcd->frame_list) { + + per_sched_disable(hcd); + frame_list_free(hcd); + } +} + +static uint8_t frame_to_desc_idx(dwc_otg_qh_t * qh, uint16_t frame_idx) +{ + if (qh->dev_speed == DWC_OTG_EP_SPEED_HIGH) { + /* + * Descriptor set(8 descriptors) index + * which is 8-aligned. + */ + return (frame_idx & ((MAX_DMA_DESC_NUM_HS_ISOC / 8) - 1)) * 8; + } else { + return (frame_idx & (MAX_DMA_DESC_NUM_GENERIC - 1)); + } +} + +/* + * Determine starting frame for Isochronous transfer. + * Few frames skipped to prevent race condition with HC. + */ +static uint8_t calc_starting_frame(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh, + uint8_t * skip_frames) +{ + uint16_t frame = 0; + hcd->frame_number = dwc_otg_hcd_get_frame_number(hcd); + + /* sched_frame is always frame number(not uFrame) both in FS and HS !! */ + + /* + * skip_frames is used to limit activated descriptors number + * to avoid the situation when HC services the last activated + * descriptor firstly. + * Example for FS: + * Current frame is 1, scheduled frame is 3. Since HC always fetches the descriptor + * corresponding to curr_frame+1, the descriptor corresponding to frame 2 + * will be fetched. If the number of descriptors is max=64 (or greather) the + * list will be fully programmed with Active descriptors and it is possible + * case(rare) that the latest descriptor(considering rollback) corresponding + * to frame 2 will be serviced first. HS case is more probable because, in fact, + * up to 11 uframes(16 in the code) may be skipped. + */ + if (qh->dev_speed == DWC_OTG_EP_SPEED_HIGH) { + /* + * Consider uframe counter also, to start xfer asap. + * If half of the frame elapsed skip 2 frames otherwise + * just 1 frame. + * Starting descriptor index must be 8-aligned, so + * if the current frame is near to complete the next one + * is skipped as well. + */ + + if (dwc_micro_frame_num(hcd->frame_number) >= 5) { + *skip_frames = 2 * 8; + frame = dwc_frame_num_inc(hcd->frame_number, *skip_frames); + } else { + *skip_frames = 1 * 8; + frame = dwc_frame_num_inc(hcd->frame_number, *skip_frames); + } + + frame = dwc_full_frame_num(frame); + } else { + /* + * Two frames are skipped for FS - the current and the next. + * But for descriptor programming, 1 frame(descriptor) is enough, + * see example above. + */ + *skip_frames = 1; + frame = dwc_frame_num_inc(hcd->frame_number, 2); + } + + return frame; +} + +/* + * Calculate initial descriptor index for isochronous transfer + * based on scheduled frame. + */ +static uint8_t recalc_initial_desc_idx(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) +{ + uint16_t frame = 0, fr_idx, fr_idx_tmp; + uint8_t skip_frames = 0; + /* + * With current ISOC processing algorithm the channel is being + * released when no more QTDs in the list(qh->ntd == 0). + * Thus this function is called only when qh->ntd == 0 and qh->channel == 0. + * + * So qh->channel != NULL branch is not used and just not removed from the + * source file. It is required for another possible approach which is, + * do not disable and release the channel when ISOC session completed, + * just move QH to inactive schedule until new QTD arrives. + * On new QTD, the QH moved back to 'ready' schedule, + * starting frame and therefore starting desc_index are recalculated. + * In this case channel is released only on ep_disable. + */ + + /* Calculate starting descriptor index. For INTERRUPT endpoint it is always 0. */ + if (qh->channel) { + frame = calc_starting_frame(hcd, qh, &skip_frames); + /* + * Calculate initial descriptor index based on FrameList current bitmap + * and servicing period. + */ + fr_idx_tmp = frame_list_idx(frame); + fr_idx = + (MAX_FRLIST_EN_NUM + frame_list_idx(qh->sched_frame) - + fr_idx_tmp) + % frame_incr_val(qh); + fr_idx = (fr_idx + fr_idx_tmp) % MAX_FRLIST_EN_NUM; + } else { + qh->sched_frame = calc_starting_frame(hcd, qh, &skip_frames); + fr_idx = frame_list_idx(qh->sched_frame); + } + + qh->td_first = qh->td_last = frame_to_desc_idx(qh, fr_idx); + + return skip_frames; +} + +#define ISOC_URB_GIVEBACK_ASAP + +#define MAX_ISOC_XFER_SIZE_FS 1023 +#define MAX_ISOC_XFER_SIZE_HS 3072 +#define DESCNUM_THRESHOLD 4 + +static void init_isoc_dma_desc(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh, + uint8_t skip_frames) +{ + struct dwc_otg_hcd_iso_packet_desc *frame_desc; + dwc_otg_qtd_t *qtd; + dwc_otg_host_dma_desc_t *dma_desc; + uint16_t idx, inc, n_desc, ntd_max, max_xfer_size; + + idx = qh->td_last; + inc = qh->interval; + n_desc = 0; + + ntd_max = (max_desc_num(qh) + qh->interval - 1) / qh->interval; + if (skip_frames && !qh->channel) + ntd_max = ntd_max - skip_frames / qh->interval; + + max_xfer_size = + (qh->dev_speed == + DWC_OTG_EP_SPEED_HIGH) ? MAX_ISOC_XFER_SIZE_HS : + MAX_ISOC_XFER_SIZE_FS; + + DWC_CIRCLEQ_FOREACH(qtd, &qh->qtd_list, qtd_list_entry) { + while ((qh->ntd < ntd_max) + && (qtd->isoc_frame_index_last < + qtd->urb->packet_count)) { + + dma_desc = &qh->desc_list[idx]; + dwc_memset(dma_desc, 0x00, sizeof(dwc_otg_host_dma_desc_t)); + + frame_desc = &qtd->urb->iso_descs[qtd->isoc_frame_index_last]; + + if (frame_desc->length > max_xfer_size) + qh->n_bytes[idx] = max_xfer_size; + else + qh->n_bytes[idx] = frame_desc->length; + dma_desc->status.b_isoc.n_bytes = qh->n_bytes[idx]; + dma_desc->status.b_isoc.a = 1; + dma_desc->status.b_isoc.sts = 0; + + dma_desc->buf = qtd->urb->dma + frame_desc->offset; + + qh->ntd++; + + qtd->isoc_frame_index_last++; + +#ifdef ISOC_URB_GIVEBACK_ASAP + /* + * Set IOC for each descriptor corresponding to the + * last frame of the URB. + */ + if (qtd->isoc_frame_index_last == + qtd->urb->packet_count) + dma_desc->status.b_isoc.ioc = 1; + +#endif + idx = desclist_idx_inc(idx, inc, qh->dev_speed); + n_desc++; + + } + qtd->in_process = 1; + } + + qh->td_last = idx; + +#ifdef ISOC_URB_GIVEBACK_ASAP + /* Set IOC for the last descriptor if descriptor list is full */ + if (qh->ntd == ntd_max) { + idx = desclist_idx_dec(qh->td_last, inc, qh->dev_speed); + qh->desc_list[idx].status.b_isoc.ioc = 1; + } +#else + /* + * Set IOC bit only for one descriptor. + * Always try to be ahead of HW processing, + * i.e. on IOC generation driver activates next descriptors but + * core continues to process descriptors followed the one with IOC set. + */ + + if (n_desc > DESCNUM_THRESHOLD) { + /* + * Move IOC "up". Required even if there is only one QTD + * in the list, cause QTDs migth continue to be queued, + * but during the activation it was only one queued. + * Actually more than one QTD might be in the list if this function called + * from XferCompletion - QTDs was queued during HW processing of the previous + * descriptor chunk. + */ + idx = dwc_desclist_idx_dec(idx, inc * ((qh->ntd + 1) / 2), qh->dev_speed); + } else { + /* + * Set the IOC for the latest descriptor + * if either number of descriptor is not greather than threshold + * or no more new descriptors activated. + */ + idx = dwc_desclist_idx_dec(qh->td_last, inc, qh->dev_speed); + } + + qh->desc_list[idx].status.b_isoc.ioc = 1; +#endif +} + +static void init_non_isoc_dma_desc(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) +{ + + dwc_hc_t *hc; + dwc_otg_host_dma_desc_t *dma_desc; + dwc_otg_qtd_t *qtd; + int num_packets, len, n_desc = 0; + + hc = qh->channel; + + /* + * Start with hc->xfer_buff initialized in + * assign_and_init_hc(), then if SG transfer consists of multiple URBs, + * this pointer re-assigned to the buffer of the currently processed QTD. + * For non-SG request there is always one QTD active. + */ + + DWC_CIRCLEQ_FOREACH(qtd, &qh->qtd_list, qtd_list_entry) { + + if (n_desc) { + /* SG request - more than 1 QTDs */ + hc->xfer_buff = (uint8_t *)qtd->urb->dma + qtd->urb->actual_length; + hc->xfer_len = qtd->urb->length - qtd->urb->actual_length; + } + + qtd->n_desc = 0; + + do { + dma_desc = &qh->desc_list[n_desc]; + len = hc->xfer_len; + + if (len > MAX_DMA_DESC_SIZE) + len = MAX_DMA_DESC_SIZE - hc->max_packet + 1; + + if (hc->ep_is_in) { + if (len > 0) { + num_packets = (len + hc->max_packet - 1) / hc->max_packet; + } else { + /* Need 1 packet for transfer length of 0. */ + num_packets = 1; + } + /* Always program an integral # of max packets for IN transfers. */ + len = num_packets * hc->max_packet; + } + + dma_desc->status.b.n_bytes = len; + + qh->n_bytes[n_desc] = len; + + if ((qh->ep_type == UE_CONTROL) + && (qtd->control_phase == DWC_OTG_CONTROL_SETUP)) + dma_desc->status.b.sup = 1; /* Setup Packet */ + + dma_desc->status.b.a = 1; /* Active descriptor */ + dma_desc->status.b.sts = 0; + + dma_desc->buf = + ((unsigned long)hc->xfer_buff & 0xffffffff); + + /* + * Last descriptor(or single) of IN transfer + * with actual size less than MaxPacket. + */ + if (len > hc->xfer_len) { + hc->xfer_len = 0; + } else { + hc->xfer_buff += len; + hc->xfer_len -= len; + } + + qtd->n_desc++; + n_desc++; + } + while ((hc->xfer_len > 0) && (n_desc != MAX_DMA_DESC_NUM_GENERIC)); + + + qtd->in_process = 1; + + if (qh->ep_type == UE_CONTROL) + break; + + if (n_desc == MAX_DMA_DESC_NUM_GENERIC) + break; + } + + if (n_desc) { + /* Request Transfer Complete interrupt for the last descriptor */ + qh->desc_list[n_desc - 1].status.b.ioc = 1; + /* End of List indicator */ + qh->desc_list[n_desc - 1].status.b.eol = 1; + + hc->ntd = n_desc; + } +} + +/** + * For Control and Bulk endpoints initializes descriptor list + * and starts the transfer. + * + * For Interrupt and Isochronous endpoints initializes descriptor list + * then updates FrameList, marking appropriate entries as active. + * In case of Isochronous, the starting descriptor index is calculated based + * on the scheduled frame, but only on the first transfer descriptor within a session. + * Then starts the transfer via enabling the channel. + * For Isochronous endpoint the channel is not halted on XferComplete + * interrupt so remains assigned to the endpoint(QH) until session is done. + * + * @param hcd The HCD state structure for the DWC OTG controller. + * @param qh The QH to init. + * + * @return 0 if successful, negative error code otherwise. + */ +void dwc_otg_hcd_start_xfer_ddma(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) +{ + /* Channel is already assigned */ + dwc_hc_t *hc = qh->channel; + uint8_t skip_frames = 0; + + switch (hc->ep_type) { + case DWC_OTG_EP_TYPE_CONTROL: + case DWC_OTG_EP_TYPE_BULK: + init_non_isoc_dma_desc(hcd, qh); + + dwc_otg_hc_start_transfer_ddma(hcd->core_if, hc); + break; + case DWC_OTG_EP_TYPE_INTR: + init_non_isoc_dma_desc(hcd, qh); + + update_frame_list(hcd, qh, 1); + + dwc_otg_hc_start_transfer_ddma(hcd->core_if, hc); + break; + case DWC_OTG_EP_TYPE_ISOC: + + if (!qh->ntd) + skip_frames = recalc_initial_desc_idx(hcd, qh); + + init_isoc_dma_desc(hcd, qh, skip_frames); + + if (!hc->xfer_started) { + + update_frame_list(hcd, qh, 1); + + /* + * Always set to max, instead of actual size. + * Otherwise ntd will be changed with + * channel being enabled. Not recommended. + * + */ + hc->ntd = max_desc_num(qh); + /* Enable channel only once for ISOC */ + dwc_otg_hc_start_transfer_ddma(hcd->core_if, hc); + } + + break; + default: + + break; + } +} + +static void complete_isoc_xfer_ddma(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_halt_status_e halt_status) +{ + struct dwc_otg_hcd_iso_packet_desc *frame_desc; + dwc_otg_qtd_t *qtd, *qtd_tmp; + dwc_otg_qh_t *qh; + dwc_otg_host_dma_desc_t *dma_desc; + uint16_t idx, remain; + uint8_t urb_compl; + + qh = hc->qh; + idx = qh->td_first; + + if (hc->halt_status == DWC_OTG_HC_XFER_URB_DEQUEUE) { + DWC_CIRCLEQ_FOREACH_SAFE(qtd, qtd_tmp, &hc->qh->qtd_list, qtd_list_entry) + qtd->in_process = 0; + return; + } else if ((halt_status == DWC_OTG_HC_XFER_AHB_ERR) || + (halt_status == DWC_OTG_HC_XFER_BABBLE_ERR)) { + /* + * Channel is halted in these error cases. + * Considered as serious issues. + * Complete all URBs marking all frames as failed, + * irrespective whether some of the descriptors(frames) succeeded or no. + * Pass error code to completion routine as well, to + * update urb->status, some of class drivers might use it to stop + * queing transfer requests. + */ + int err = (halt_status == DWC_OTG_HC_XFER_AHB_ERR) + ? (-DWC_E_IO) + : (-DWC_E_OVERFLOW); + + DWC_CIRCLEQ_FOREACH_SAFE(qtd, qtd_tmp, &hc->qh->qtd_list, qtd_list_entry) { + for (idx = 0; idx < qtd->urb->packet_count; idx++) { + frame_desc = &qtd->urb->iso_descs[idx]; + frame_desc->status = err; + } + hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, err); + dwc_otg_hcd_qtd_remove_and_free(hcd, qtd, qh); + } + return; + } + + DWC_CIRCLEQ_FOREACH_SAFE(qtd, qtd_tmp, &hc->qh->qtd_list, qtd_list_entry) { + + if (!qtd->in_process) + break; + + urb_compl = 0; + + do { + + dma_desc = &qh->desc_list[idx]; + + frame_desc = &qtd->urb->iso_descs[qtd->isoc_frame_index]; + remain = hc->ep_is_in ? dma_desc->status.b_isoc.n_bytes : 0; + + if (dma_desc->status.b_isoc.sts == DMA_DESC_STS_PKTERR) { + /* + * XactError or, unable to complete all the transactions + * in the scheduled micro-frame/frame, + * both indicated by DMA_DESC_STS_PKTERR. + */ + qtd->urb->error_count++; + frame_desc->actual_length = qh->n_bytes[idx] - remain; + frame_desc->status = -DWC_E_PROTOCOL; + } else { + /* Success */ + + frame_desc->actual_length = qh->n_bytes[idx] - remain; + frame_desc->status = 0; + } + + if (++qtd->isoc_frame_index == qtd->urb->packet_count) { + /* + * urb->status is not used for isoc transfers here. + * The individual frame_desc status are used instead. + */ + + hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, 0); + dwc_otg_hcd_qtd_remove_and_free(hcd, qtd, qh); + + /* + * This check is necessary because urb_dequeue can be called + * from urb complete callback(sound driver example). + * All pending URBs are dequeued there, so no need for + * further processing. + */ + if (hc->halt_status == DWC_OTG_HC_XFER_URB_DEQUEUE) { + return; + } + + urb_compl = 1; + + } + + qh->ntd--; + + /* Stop if IOC requested descriptor reached */ + if (dma_desc->status.b_isoc.ioc) { + idx = desclist_idx_inc(idx, qh->interval, hc->speed); + goto stop_scan; + } + + idx = desclist_idx_inc(idx, qh->interval, hc->speed); + + if (urb_compl) + break; + } + while (idx != qh->td_first); + } +stop_scan: + qh->td_first = idx; +} + +uint8_t update_non_isoc_urb_state_ddma(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_qtd_t * qtd, + dwc_otg_host_dma_desc_t * dma_desc, + dwc_otg_halt_status_e halt_status, + uint32_t n_bytes, uint8_t * xfer_done) +{ + + uint16_t remain = hc->ep_is_in ? dma_desc->status.b.n_bytes : 0; + dwc_otg_hcd_urb_t *urb = qtd->urb; + + if (halt_status == DWC_OTG_HC_XFER_AHB_ERR) { + urb->status = -DWC_E_IO; + return 1; + } + if (dma_desc->status.b.sts == DMA_DESC_STS_PKTERR) { + switch (halt_status) { + case DWC_OTG_HC_XFER_STALL: + urb->status = -DWC_E_PIPE; + break; + case DWC_OTG_HC_XFER_BABBLE_ERR: + urb->status = -DWC_E_OVERFLOW; + break; + case DWC_OTG_HC_XFER_XACT_ERR: + urb->status = -DWC_E_PROTOCOL; + break; + default: + DWC_ERROR("%s: Unhandled descriptor error status (%d)\n", __func__, + halt_status); + break; + } + return 1; + } + + if (dma_desc->status.b.a == 1) { + DWC_DEBUGPL(DBG_HCDV, + "Active descriptor encountered on channel %d\n", + hc->hc_num); + return 0; + } + + if (hc->ep_type == DWC_OTG_EP_TYPE_CONTROL) { + if (qtd->control_phase == DWC_OTG_CONTROL_DATA) { + urb->actual_length += n_bytes - remain; + if (remain || urb->actual_length == urb->length) { + /* + * For Control Data stage do not set urb->status=0 to prevent + * URB callback. Set it when Status phase done. See below. + */ + *xfer_done = 1; + } + + } else if (qtd->control_phase == DWC_OTG_CONTROL_STATUS) { + urb->status = 0; + *xfer_done = 1; + } + /* No handling for SETUP stage */ + } else { + /* BULK and INTR */ + urb->actual_length += n_bytes - remain; + if (remain || urb->actual_length == urb->length) { + urb->status = 0; + *xfer_done = 1; + } + } + + return 0; +} + +static void complete_non_isoc_xfer_ddma(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_halt_status_e halt_status) +{ + dwc_otg_hcd_urb_t *urb = NULL; + dwc_otg_qtd_t *qtd, *qtd_tmp; + dwc_otg_qh_t *qh; + dwc_otg_host_dma_desc_t *dma_desc; + uint32_t n_bytes, n_desc, i; + uint8_t failed = 0, xfer_done; + + n_desc = 0; + + qh = hc->qh; + + if (hc->halt_status == DWC_OTG_HC_XFER_URB_DEQUEUE) { + DWC_CIRCLEQ_FOREACH_SAFE(qtd, qtd_tmp, &hc->qh->qtd_list, qtd_list_entry) { + qtd->in_process = 0; + } + return; + } + + DWC_CIRCLEQ_FOREACH_SAFE(qtd, qtd_tmp, &qh->qtd_list, qtd_list_entry) { + + urb = qtd->urb; + + n_bytes = 0; + xfer_done = 0; + + for (i = 0; i < qtd->n_desc; i++) { + dma_desc = &qh->desc_list[n_desc]; + + n_bytes = qh->n_bytes[n_desc]; + + failed = + update_non_isoc_urb_state_ddma(hcd, hc, qtd, + dma_desc, + halt_status, n_bytes, + &xfer_done); + + if (failed + || (xfer_done + && (urb->status != -DWC_E_IN_PROGRESS))) { + + hcd->fops->complete(hcd, urb->priv, urb, + urb->status); + dwc_otg_hcd_qtd_remove_and_free(hcd, qtd, qh); + + if (failed) + goto stop_scan; + } else if (qh->ep_type == UE_CONTROL) { + if (qtd->control_phase == DWC_OTG_CONTROL_SETUP) { + if (urb->length > 0) { + qtd->control_phase = DWC_OTG_CONTROL_DATA; + } else { + qtd->control_phase = DWC_OTG_CONTROL_STATUS; + } + DWC_DEBUGPL(DBG_HCDV, " Control setup transaction done\n"); + } else if (qtd->control_phase == DWC_OTG_CONTROL_DATA) { + if (xfer_done) { + qtd->control_phase = DWC_OTG_CONTROL_STATUS; + DWC_DEBUGPL(DBG_HCDV, " Control data transfer done\n"); + } else if (i + 1 == qtd->n_desc) { + /* + * Last descriptor for Control data stage which is + * not completed yet. + */ + dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd); + } + } + } + + n_desc++; + } + + } + +stop_scan: + + if (qh->ep_type != UE_CONTROL) { + /* + * Resetting the data toggle for bulk + * and interrupt endpoints in case of stall. See handle_hc_stall_intr() + */ + if (halt_status == DWC_OTG_HC_XFER_STALL) + qh->data_toggle = DWC_OTG_HC_PID_DATA0; + else + dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd); + } + + if (halt_status == DWC_OTG_HC_XFER_COMPLETE) { + hcint_data_t hcint; + hcint.d32 = DWC_READ_REG32(&hc_regs->hcint); + if (hcint.b.nyet) { + /* + * Got a NYET on the last transaction of the transfer. It + * means that the endpoint should be in the PING state at the + * beginning of the next transfer. + */ + qh->ping_state = 1; + clear_hc_int(hc_regs, nyet); + } + + } + +} + +/** + * This function is called from interrupt handlers. + * Scans the descriptor list, updates URB's status and + * calls completion routine for the URB if it's done. + * Releases the channel to be used by other transfers. + * In case of Isochronous endpoint the channel is not halted until + * the end of the session, i.e. QTD list is empty. + * If periodic channel released the FrameList is updated accordingly. + * + * Calls transaction selection routines to activate pending transfers. + * + * @param hcd The HCD state structure for the DWC OTG controller. + * @param hc Host channel, the transfer is completed on. + * @param hc_regs Host channel registers. + * @param halt_status Reason the channel is being halted, + * or just XferComplete for isochronous transfer + */ +void dwc_otg_hcd_complete_xfer_ddma(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_halt_status_e halt_status) +{ + uint8_t continue_isoc_xfer = 0; + dwc_otg_transaction_type_e tr_type; + dwc_otg_qh_t *qh = hc->qh; + + if (hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { + + complete_isoc_xfer_ddma(hcd, hc, hc_regs, halt_status); + + /* Release the channel if halted or session completed */ + if (halt_status != DWC_OTG_HC_XFER_COMPLETE || + DWC_CIRCLEQ_EMPTY(&qh->qtd_list)) { + + /* Halt the channel if session completed */ + if (halt_status == DWC_OTG_HC_XFER_COMPLETE) { + dwc_otg_hc_halt(hcd->core_if, hc, halt_status); + } + + release_channel_ddma(hcd, qh); + dwc_otg_hcd_qh_remove(hcd, qh); + } else { + /* Keep in assigned schedule to continue transfer */ + DWC_LIST_MOVE_HEAD(&hcd->periodic_sched_assigned, + &qh->qh_list_entry); + continue_isoc_xfer = 1; + + } + /** @todo Consider the case when period exceeds FrameList size. + * Frame Rollover interrupt should be used. + */ + } else { + /* Scan descriptor list to complete the URB(s), then release the channel */ + complete_non_isoc_xfer_ddma(hcd, hc, hc_regs, halt_status); + + release_channel_ddma(hcd, qh); + dwc_otg_hcd_qh_remove(hcd, qh); + + if (!DWC_CIRCLEQ_EMPTY(&qh->qtd_list)) { + /* Add back to inactive non-periodic schedule on normal completion */ + dwc_otg_hcd_qh_add(hcd, qh); + } + + } + tr_type = dwc_otg_hcd_select_transactions(hcd); + if (tr_type != DWC_OTG_TRANSACTION_NONE || continue_isoc_xfer) { + if (continue_isoc_xfer) { + if (tr_type == DWC_OTG_TRANSACTION_NONE) { + tr_type = DWC_OTG_TRANSACTION_PERIODIC; + } else if (tr_type == DWC_OTG_TRANSACTION_NON_PERIODIC) { + tr_type = DWC_OTG_TRANSACTION_ALL; + } + } + dwc_otg_hcd_queue_transactions(hcd, tr_type); + } +} + +#endif /* DWC_DEVICE_ONLY */ diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_if.h b/drivers/usb/host/dwc_otg/dwc_otg_hcd_if.h new file mode 100644 index 0000000000000000000000000000000000000000..fb57db09378f4ab95d57cb58aa570a915ccb61c3 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_if.h @@ -0,0 +1,417 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd_if.h $ + * $Revision: #12 $ + * $Date: 2011/10/26 $ + * $Change: 1873028 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ +#ifndef DWC_DEVICE_ONLY +#ifndef __DWC_HCD_IF_H__ +#define __DWC_HCD_IF_H__ + +#include "dwc_otg_core_if.h" + +/** @file + * This file defines DWC_OTG HCD Core API. + */ + +struct dwc_otg_hcd; +typedef struct dwc_otg_hcd dwc_otg_hcd_t; + +struct dwc_otg_hcd_urb; +typedef struct dwc_otg_hcd_urb dwc_otg_hcd_urb_t; + +/** @name HCD Function Driver Callbacks */ +/** @{ */ + +/** This function is called whenever core switches to host mode. */ +typedef int (*dwc_otg_hcd_start_cb_t) (dwc_otg_hcd_t * hcd); + +/** This function is called when device has been disconnected */ +typedef int (*dwc_otg_hcd_disconnect_cb_t) (dwc_otg_hcd_t * hcd); + +/** Wrapper provides this function to HCD to core, so it can get hub information to which device is connected */ +typedef int (*dwc_otg_hcd_hub_info_from_urb_cb_t) (dwc_otg_hcd_t * hcd, + void *urb_handle, + uint32_t * hub_addr, + uint32_t * port_addr); +/** Via this function HCD core gets device speed */ +typedef int (*dwc_otg_hcd_speed_from_urb_cb_t) (dwc_otg_hcd_t * hcd, + void *urb_handle); + +/** This function is called when urb is completed */ +typedef int (*dwc_otg_hcd_complete_urb_cb_t) (dwc_otg_hcd_t * hcd, + void *urb_handle, + dwc_otg_hcd_urb_t * dwc_otg_urb, + int32_t status); + +/** Via this function HCD core gets b_hnp_enable parameter */ +typedef int (*dwc_otg_hcd_get_b_hnp_enable) (dwc_otg_hcd_t * hcd); + +struct dwc_otg_hcd_function_ops { + dwc_otg_hcd_start_cb_t start; + dwc_otg_hcd_disconnect_cb_t disconnect; + dwc_otg_hcd_hub_info_from_urb_cb_t hub_info; + dwc_otg_hcd_speed_from_urb_cb_t speed; + dwc_otg_hcd_complete_urb_cb_t complete; + dwc_otg_hcd_get_b_hnp_enable get_b_hnp_enable; +}; +/** @} */ + +/** @name HCD Core API */ +/** @{ */ +/** This function allocates dwc_otg_hcd structure and returns pointer on it. */ +extern dwc_otg_hcd_t *dwc_otg_hcd_alloc_hcd(void); + +/** This function should be called to initiate HCD Core. + * + * @param hcd The HCD + * @param core_if The DWC_OTG Core + * + * Returns -DWC_E_NO_MEMORY if no enough memory. + * Returns 0 on success + */ +extern int dwc_otg_hcd_init(dwc_otg_hcd_t * hcd, dwc_otg_core_if_t * core_if); + +/** Frees HCD + * + * @param hcd The HCD + */ +extern void dwc_otg_hcd_remove(dwc_otg_hcd_t * hcd); + +/** This function should be called on every hardware interrupt. + * + * @param dwc_otg_hcd The HCD + * + * Returns non zero if interrupt is handled + * Return 0 if interrupt is not handled + */ +extern int32_t dwc_otg_hcd_handle_intr(dwc_otg_hcd_t * dwc_otg_hcd); + +/** This function is used to handle the fast interrupt + * + */ +extern void __attribute__ ((naked)) dwc_otg_hcd_handle_fiq(void); + +/** + * Returns private data set by + * dwc_otg_hcd_set_priv_data function. + * + * @param hcd The HCD + */ +extern void *dwc_otg_hcd_get_priv_data(dwc_otg_hcd_t * hcd); + +/** + * Set private data. + * + * @param hcd The HCD + * @param priv_data pointer to be stored in private data + */ +extern void dwc_otg_hcd_set_priv_data(dwc_otg_hcd_t * hcd, void *priv_data); + +/** + * This function initializes the HCD Core. + * + * @param hcd The HCD + * @param fops The Function Driver Operations data structure containing pointers to all callbacks. + * + * Returns -DWC_E_NO_DEVICE if Core is currently is in device mode. + * Returns 0 on success + */ +extern int dwc_otg_hcd_start(dwc_otg_hcd_t * hcd, + struct dwc_otg_hcd_function_ops *fops); + +/** + * Halts the DWC_otg host mode operations in a clean manner. USB transfers are + * stopped. + * + * @param hcd The HCD + */ +extern void dwc_otg_hcd_stop(dwc_otg_hcd_t * hcd); + +/** + * Handles hub class-specific requests. + * + * @param dwc_otg_hcd The HCD + * @param typeReq Request Type + * @param wValue wValue from control request + * @param wIndex wIndex from control request + * @param buf data buffer + * @param wLength data buffer length + * + * Returns -DWC_E_INVALID if invalid argument is passed + * Returns 0 on success + */ +extern int dwc_otg_hcd_hub_control(dwc_otg_hcd_t * dwc_otg_hcd, + uint16_t typeReq, uint16_t wValue, + uint16_t wIndex, uint8_t * buf, + uint16_t wLength); + +/** + * Returns otg port number. + * + * @param hcd The HCD + */ +extern uint32_t dwc_otg_hcd_otg_port(dwc_otg_hcd_t * hcd); + +/** + * Returns OTG version - either 1.3 or 2.0. + * + * @param core_if The core_if structure pointer + */ +extern uint16_t dwc_otg_get_otg_version(dwc_otg_core_if_t * core_if); + +/** + * Returns 1 if currently core is acting as B host, and 0 otherwise. + * + * @param hcd The HCD + */ +extern uint32_t dwc_otg_hcd_is_b_host(dwc_otg_hcd_t * hcd); + +/** + * Returns current frame number. + * + * @param hcd The HCD + */ +extern int dwc_otg_hcd_get_frame_number(dwc_otg_hcd_t * hcd); + +/** + * Dumps hcd state. + * + * @param hcd The HCD + */ +extern void dwc_otg_hcd_dump_state(dwc_otg_hcd_t * hcd); + +/** + * Dump the average frame remaining at SOF. This can be used to + * determine average interrupt latency. Frame remaining is also shown for + * start transfer and two additional sample points. + * Currently this function is not implemented. + * + * @param hcd The HCD + */ +extern void dwc_otg_hcd_dump_frrem(dwc_otg_hcd_t * hcd); + +/** + * Sends LPM transaction to the local device. + * + * @param hcd The HCD + * @param devaddr Device Address + * @param hird Host initiated resume duration + * @param bRemoteWake Value of bRemoteWake field in LPM transaction + * + * Returns negative value if sending LPM transaction was not succeeded. + * Returns 0 on success. + */ +extern int dwc_otg_hcd_send_lpm(dwc_otg_hcd_t * hcd, uint8_t devaddr, + uint8_t hird, uint8_t bRemoteWake); + +/* URB interface */ + +/** + * Allocates memory for dwc_otg_hcd_urb structure. + * Allocated memory should be freed by call of DWC_FREE. + * + * @param hcd The HCD + * @param iso_desc_count Count of ISOC descriptors + * @param atomic_alloc Specefies whether to perform atomic allocation. + */ +extern dwc_otg_hcd_urb_t *dwc_otg_hcd_urb_alloc(dwc_otg_hcd_t * hcd, + int iso_desc_count, + int atomic_alloc); + +/** + * Set pipe information in URB. + * + * @param hcd_urb DWC_OTG URB + * @param devaddr Device Address + * @param ep_num Endpoint Number + * @param ep_type Endpoint Type + * @param ep_dir Endpoint Direction + * @param mps Max Packet Size + */ +extern void dwc_otg_hcd_urb_set_pipeinfo(dwc_otg_hcd_urb_t * hcd_urb, + uint8_t devaddr, uint8_t ep_num, + uint8_t ep_type, uint8_t ep_dir, + uint16_t mps); + +/* Transfer flags */ +#define URB_GIVEBACK_ASAP 0x1 +#define URB_SEND_ZERO_PACKET 0x2 + +/** + * Sets dwc_otg_hcd_urb parameters. + * + * @param urb DWC_OTG URB allocated by dwc_otg_hcd_urb_alloc function. + * @param urb_handle Unique handle for request, this will be passed back + * to function driver in completion callback. + * @param buf The buffer for the data + * @param dma The DMA buffer for the data + * @param buflen Transfer length + * @param sp Buffer for setup data + * @param sp_dma DMA address of setup data buffer + * @param flags Transfer flags + * @param interval Polling interval for interrupt or isochronous transfers. + */ +extern void dwc_otg_hcd_urb_set_params(dwc_otg_hcd_urb_t * urb, + void *urb_handle, void *buf, + dwc_dma_t dma, uint32_t buflen, void *sp, + dwc_dma_t sp_dma, uint32_t flags, + uint16_t interval); + +/** Gets status from dwc_otg_hcd_urb + * + * @param dwc_otg_urb DWC_OTG URB + */ +extern uint32_t dwc_otg_hcd_urb_get_status(dwc_otg_hcd_urb_t * dwc_otg_urb); + +/** Gets actual length from dwc_otg_hcd_urb + * + * @param dwc_otg_urb DWC_OTG URB + */ +extern uint32_t dwc_otg_hcd_urb_get_actual_length(dwc_otg_hcd_urb_t * + dwc_otg_urb); + +/** Gets error count from dwc_otg_hcd_urb. Only for ISOC URBs + * + * @param dwc_otg_urb DWC_OTG URB + */ +extern uint32_t dwc_otg_hcd_urb_get_error_count(dwc_otg_hcd_urb_t * + dwc_otg_urb); + +/** Set ISOC descriptor offset and length + * + * @param dwc_otg_urb DWC_OTG URB + * @param desc_num ISOC descriptor number + * @param offset Offset from beginig of buffer. + * @param length Transaction length + */ +extern void dwc_otg_hcd_urb_set_iso_desc_params(dwc_otg_hcd_urb_t * dwc_otg_urb, + int desc_num, uint32_t offset, + uint32_t length); + +/** Get status of ISOC descriptor, specified by desc_num + * + * @param dwc_otg_urb DWC_OTG URB + * @param desc_num ISOC descriptor number + */ +extern uint32_t dwc_otg_hcd_urb_get_iso_desc_status(dwc_otg_hcd_urb_t * + dwc_otg_urb, int desc_num); + +/** Get actual length of ISOC descriptor, specified by desc_num + * + * @param dwc_otg_urb DWC_OTG URB + * @param desc_num ISOC descriptor number + */ +extern uint32_t dwc_otg_hcd_urb_get_iso_desc_actual_length(dwc_otg_hcd_urb_t * + dwc_otg_urb, + int desc_num); + +/** Queue URB. After transfer is completes, the complete callback will be called with the URB status + * + * @param dwc_otg_hcd The HCD + * @param dwc_otg_urb DWC_OTG URB + * @param ep_handle Out parameter for returning endpoint handle + * @param atomic_alloc Flag to do atomic allocation if needed + * + * Returns -DWC_E_NO_DEVICE if no device is connected. + * Returns -DWC_E_NO_MEMORY if there is no enough memory. + * Returns 0 on success. + */ +extern int dwc_otg_hcd_urb_enqueue(dwc_otg_hcd_t * dwc_otg_hcd, + dwc_otg_hcd_urb_t * dwc_otg_urb, + void **ep_handle, int atomic_alloc); + +/** De-queue the specified URB + * + * @param dwc_otg_hcd The HCD + * @param dwc_otg_urb DWC_OTG URB + */ +extern int dwc_otg_hcd_urb_dequeue(dwc_otg_hcd_t * dwc_otg_hcd, + dwc_otg_hcd_urb_t * dwc_otg_urb); + +/** Frees resources in the DWC_otg controller related to a given endpoint. + * Any URBs for the endpoint must already be dequeued. + * + * @param hcd The HCD + * @param ep_handle Endpoint handle, returned by dwc_otg_hcd_urb_enqueue function + * @param retry Number of retries if there are queued transfers. + * + * Returns -DWC_E_INVALID if invalid arguments are passed. + * Returns 0 on success + */ +extern int dwc_otg_hcd_endpoint_disable(dwc_otg_hcd_t * hcd, void *ep_handle, + int retry); + +/* Resets the data toggle in qh structure. This function can be called from + * usb_clear_halt routine. + * + * @param hcd The HCD + * @param ep_handle Endpoint handle, returned by dwc_otg_hcd_urb_enqueue function + * + * Returns -DWC_E_INVALID if invalid arguments are passed. + * Returns 0 on success + */ +extern int dwc_otg_hcd_endpoint_reset(dwc_otg_hcd_t * hcd, void *ep_handle); + +/** Returns 1 if status of specified port is changed and 0 otherwise. + * + * @param hcd The HCD + * @param port Port number + */ +extern int dwc_otg_hcd_is_status_changed(dwc_otg_hcd_t * hcd, int port); + +/** Call this function to check if bandwidth was allocated for specified endpoint. + * Only for ISOC and INTERRUPT endpoints. + * + * @param hcd The HCD + * @param ep_handle Endpoint handle + */ +extern int dwc_otg_hcd_is_bandwidth_allocated(dwc_otg_hcd_t * hcd, + void *ep_handle); + +/** Call this function to check if bandwidth was freed for specified endpoint. + * + * @param hcd The HCD + * @param ep_handle Endpoint handle + */ +extern int dwc_otg_hcd_is_bandwidth_freed(dwc_otg_hcd_t * hcd, void *ep_handle); + +/** Returns bandwidth allocated for specified endpoint in microseconds. + * Only for ISOC and INTERRUPT endpoints. + * + * @param hcd The HCD + * @param ep_handle Endpoint handle + */ +extern uint8_t dwc_otg_hcd_get_ep_bandwidth(dwc_otg_hcd_t * hcd, + void *ep_handle); + +/** @} */ + +#endif /* __DWC_HCD_IF_H__ */ +#endif /* DWC_DEVICE_ONLY */ diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c new file mode 100644 index 0000000000000000000000000000000000000000..e6b38ac330b72152204c2a6879c20f0ce02ac2e5 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c @@ -0,0 +1,2727 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd_intr.c $ + * $Revision: #89 $ + * $Date: 2011/10/20 $ + * $Change: 1869487 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ +#ifndef DWC_DEVICE_ONLY + +#include "dwc_otg_hcd.h" +#include "dwc_otg_regs.h" + +#include +#include + + +extern bool microframe_schedule; + +/** @file + * This file contains the implementation of the HCD Interrupt handlers. + */ + +int fiq_done, int_done; + +#ifdef FIQ_DEBUG +char buffer[1000*16]; +int wptr; +void notrace _fiq_print(FIQDBG_T dbg_lvl, char *fmt, ...) +{ + FIQDBG_T dbg_lvl_req = FIQDBG_PORTHUB; + va_list args; + char text[17]; + hfnum_data_t hfnum = { .d32 = FIQ_READ(dwc_regs_base + 0x408) }; + + if(dbg_lvl & dbg_lvl_req || dbg_lvl == FIQDBG_ERR) + { + local_fiq_disable(); + snprintf(text, 9, "%4d%d:%d ", hfnum.b.frnum/8, hfnum.b.frnum%8, 8 - hfnum.b.frrem/937); + va_start(args, fmt); + vsnprintf(text+8, 9, fmt, args); + va_end(args); + + memcpy(buffer + wptr, text, 16); + wptr = (wptr + 16) % sizeof(buffer); + local_fiq_enable(); + } +} +#endif + +/** This function handles interrupts for the HCD. */ +int32_t dwc_otg_hcd_handle_intr(dwc_otg_hcd_t * dwc_otg_hcd) +{ + int retval = 0; + static int last_time; + dwc_otg_core_if_t *core_if = dwc_otg_hcd->core_if; + gintsts_data_t gintsts; + gintmsk_data_t gintmsk; + hfnum_data_t hfnum; + haintmsk_data_t haintmsk; + +#ifdef DEBUG + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + +#endif + + gintsts.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintsts); + gintmsk.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintmsk); + + /* Exit from ISR if core is hibernated */ + if (core_if->hibernation_suspend == 1) { + goto exit_handler_routine; + } + DWC_SPINLOCK(dwc_otg_hcd->lock); + /* Check if HOST Mode */ + if (dwc_otg_is_host_mode(core_if)) { + if (fiq_enable) { + local_fiq_disable(); + fiq_fsm_spin_lock(&dwc_otg_hcd->fiq_state->lock); + /* Pull in from the FIQ's disabled mask */ + gintmsk.d32 = gintmsk.d32 | ~(dwc_otg_hcd->fiq_state->gintmsk_saved.d32); + dwc_otg_hcd->fiq_state->gintmsk_saved.d32 = ~0; + } + + if (fiq_fsm_enable && ( 0x0000FFFF & ~(dwc_otg_hcd->fiq_state->haintmsk_saved.b2.chint))) { + gintsts.b.hcintr = 1; + } + + /* Danger will robinson: fake a SOF if necessary */ + if (fiq_fsm_enable && (dwc_otg_hcd->fiq_state->gintmsk_saved.b.sofintr == 1)) { + gintsts.b.sofintr = 1; + } + gintsts.d32 &= gintmsk.d32; + + if (fiq_enable) { + fiq_fsm_spin_unlock(&dwc_otg_hcd->fiq_state->lock); + local_fiq_enable(); + } + + if (!gintsts.d32) { + goto exit_handler_routine; + } + +#ifdef DEBUG + // We should be OK doing this because the common interrupts should already have been serviced + /* Don't print debug message in the interrupt handler on SOF */ +#ifndef DEBUG_SOF + if (gintsts.d32 != DWC_SOF_INTR_MASK) +#endif + DWC_DEBUGPL(DBG_HCDI, "\n"); +#endif + +#ifdef DEBUG +#ifndef DEBUG_SOF + if (gintsts.d32 != DWC_SOF_INTR_MASK) +#endif + DWC_DEBUGPL(DBG_HCDI, + "DWC OTG HCD Interrupt Detected gintsts&gintmsk=0x%08x core_if=%p\n", + gintsts.d32, core_if); +#endif + hfnum.d32 = DWC_READ_REG32(&dwc_otg_hcd->core_if->host_if->host_global_regs->hfnum); + if (gintsts.b.sofintr) { + retval |= dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd); + } + + if (gintsts.b.rxstsqlvl) { + retval |= + dwc_otg_hcd_handle_rx_status_q_level_intr + (dwc_otg_hcd); + } + if (gintsts.b.nptxfempty) { + retval |= + dwc_otg_hcd_handle_np_tx_fifo_empty_intr + (dwc_otg_hcd); + } + if (gintsts.b.i2cintr) { + /** @todo Implement i2cintr handler. */ + } + if (gintsts.b.portintr) { + + gintmsk_data_t gintmsk = { .b.portintr = 1}; + retval |= dwc_otg_hcd_handle_port_intr(dwc_otg_hcd); + if (fiq_enable) { + local_fiq_disable(); + fiq_fsm_spin_lock(&dwc_otg_hcd->fiq_state->lock); + DWC_MODIFY_REG32(&dwc_otg_hcd->core_if->core_global_regs->gintmsk, 0, gintmsk.d32); + fiq_fsm_spin_unlock(&dwc_otg_hcd->fiq_state->lock); + local_fiq_enable(); + } else { + DWC_MODIFY_REG32(&dwc_otg_hcd->core_if->core_global_regs->gintmsk, 0, gintmsk.d32); + } + } + if (gintsts.b.hcintr) { + retval |= dwc_otg_hcd_handle_hc_intr(dwc_otg_hcd); + } + if (gintsts.b.ptxfempty) { + retval |= + dwc_otg_hcd_handle_perio_tx_fifo_empty_intr + (dwc_otg_hcd); + } +#ifdef DEBUG +#ifndef DEBUG_SOF + if (gintsts.d32 != DWC_SOF_INTR_MASK) +#endif + { + DWC_DEBUGPL(DBG_HCDI, + "DWC OTG HCD Finished Servicing Interrupts\n"); + DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD gintsts=0x%08x\n", + DWC_READ_REG32(&global_regs->gintsts)); + DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD gintmsk=0x%08x\n", + DWC_READ_REG32(&global_regs->gintmsk)); + } +#endif + +#ifdef DEBUG +#ifndef DEBUG_SOF + if (gintsts.d32 != DWC_SOF_INTR_MASK) +#endif + DWC_DEBUGPL(DBG_HCDI, "\n"); +#endif + + } + +exit_handler_routine: + if (fiq_enable) { + gintmsk_data_t gintmsk_new; + haintmsk_data_t haintmsk_new; + local_fiq_disable(); + fiq_fsm_spin_lock(&dwc_otg_hcd->fiq_state->lock); + gintmsk_new.d32 = *(volatile uint32_t *)&dwc_otg_hcd->fiq_state->gintmsk_saved.d32; + if(fiq_fsm_enable) + haintmsk_new.d32 = *(volatile uint32_t *)&dwc_otg_hcd->fiq_state->haintmsk_saved.d32; + else + haintmsk_new.d32 = 0x0000FFFF; + + /* The FIQ could have sneaked another interrupt in. If so, don't clear MPHI */ + if ((gintmsk_new.d32 == ~0) && (haintmsk_new.d32 == 0x0000FFFF)) { + DWC_WRITE_REG32(dwc_otg_hcd->fiq_state->mphi_regs.intstat, (1<<16)); + if (dwc_otg_hcd->fiq_state->mphi_int_count >= 50) { + fiq_print(FIQDBG_INT, dwc_otg_hcd->fiq_state, "MPHI CLR"); + DWC_WRITE_REG32(dwc_otg_hcd->fiq_state->mphi_regs.ctrl, ((1<<31) + (1<<16))); + while (!(DWC_READ_REG32(dwc_otg_hcd->fiq_state->mphi_regs.ctrl) & (1 << 17))) + ; + DWC_WRITE_REG32(dwc_otg_hcd->fiq_state->mphi_regs.ctrl, (1<<31)); + dwc_otg_hcd->fiq_state->mphi_int_count = 0; + } + int_done++; + } + haintmsk.d32 = DWC_READ_REG32(&core_if->host_if->host_global_regs->haintmsk); + /* Re-enable interrupts that the FIQ masked (first time round) */ + FIQ_WRITE(dwc_otg_hcd->fiq_state->dwc_regs_base + GINTMSK, gintmsk.d32); + fiq_fsm_spin_unlock(&dwc_otg_hcd->fiq_state->lock); + local_fiq_enable(); + + if ((jiffies / HZ) > last_time) { + //dwc_otg_qh_t *qh; + //dwc_list_link_t *cur; + /* Once a second output the fiq and irq numbers, useful for debug */ + last_time = jiffies / HZ; + // DWC_WARN("np_kick=%d AHC=%d sched_frame=%d cur_frame=%d int_done=%d fiq_done=%d", + // dwc_otg_hcd->fiq_state->kick_np_queues, dwc_otg_hcd->available_host_channels, + // dwc_otg_hcd->fiq_state->next_sched_frame, hfnum.b.frnum, int_done, dwc_otg_hcd->fiq_state->fiq_done); + //printk(KERN_WARNING "Periodic queues:\n"); + } + } + + DWC_SPINUNLOCK(dwc_otg_hcd->lock); + return retval; +} + +#ifdef DWC_TRACK_MISSED_SOFS + +#warning Compiling code to track missed SOFs +#define FRAME_NUM_ARRAY_SIZE 1000 +/** + * This function is for debug only. + */ +static inline void track_missed_sofs(uint16_t curr_frame_number) +{ + static uint16_t frame_num_array[FRAME_NUM_ARRAY_SIZE]; + static uint16_t last_frame_num_array[FRAME_NUM_ARRAY_SIZE]; + static int frame_num_idx = 0; + static uint16_t last_frame_num = DWC_HFNUM_MAX_FRNUM; + static int dumped_frame_num_array = 0; + + if (frame_num_idx < FRAME_NUM_ARRAY_SIZE) { + if (((last_frame_num + 1) & DWC_HFNUM_MAX_FRNUM) != + curr_frame_number) { + frame_num_array[frame_num_idx] = curr_frame_number; + last_frame_num_array[frame_num_idx++] = last_frame_num; + } + } else if (!dumped_frame_num_array) { + int i; + DWC_PRINTF("Frame Last Frame\n"); + DWC_PRINTF("----- ----------\n"); + for (i = 0; i < FRAME_NUM_ARRAY_SIZE; i++) { + DWC_PRINTF("0x%04x 0x%04x\n", + frame_num_array[i], last_frame_num_array[i]); + } + dumped_frame_num_array = 1; + } + last_frame_num = curr_frame_number; +} +#endif + +/** + * Handles the start-of-frame interrupt in host mode. Non-periodic + * transactions may be queued to the DWC_otg controller for the current + * (micro)frame. Periodic transactions may be queued to the controller for the + * next (micro)frame. + */ +int32_t dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd_t * hcd) +{ + hfnum_data_t hfnum; + gintsts_data_t gintsts = { .d32 = 0 }; + dwc_list_link_t *qh_entry; + dwc_otg_qh_t *qh; + dwc_otg_transaction_type_e tr_type; + int did_something = 0; + int32_t next_sched_frame = -1; + + hfnum.d32 = + DWC_READ_REG32(&hcd->core_if->host_if->host_global_regs->hfnum); + +#ifdef DEBUG_SOF + DWC_DEBUGPL(DBG_HCD, "--Start of Frame Interrupt--\n"); +#endif + hcd->frame_number = hfnum.b.frnum; + +#ifdef DEBUG + hcd->frrem_accum += hfnum.b.frrem; + hcd->frrem_samples++; +#endif + +#ifdef DWC_TRACK_MISSED_SOFS + track_missed_sofs(hcd->frame_number); +#endif + /* Determine whether any periodic QHs should be executed. */ + qh_entry = DWC_LIST_FIRST(&hcd->periodic_sched_inactive); + while (qh_entry != &hcd->periodic_sched_inactive) { + qh = DWC_LIST_ENTRY(qh_entry, dwc_otg_qh_t, qh_list_entry); + qh_entry = qh_entry->next; + if (dwc_frame_num_le(qh->sched_frame, hcd->frame_number)) { + + /* + * Move QH to the ready list to be executed next + * (micro)frame. + */ + DWC_LIST_MOVE_HEAD(&hcd->periodic_sched_ready, + &qh->qh_list_entry); + + did_something = 1; + } + else + { + if(next_sched_frame < 0 || dwc_frame_num_le(qh->sched_frame, next_sched_frame)) + { + next_sched_frame = qh->sched_frame; + } + } + } + if (fiq_enable) + hcd->fiq_state->next_sched_frame = next_sched_frame; + + tr_type = dwc_otg_hcd_select_transactions(hcd); + if (tr_type != DWC_OTG_TRANSACTION_NONE) { + dwc_otg_hcd_queue_transactions(hcd, tr_type); + did_something = 1; + } + + /* Clear interrupt - but do not trample on the FIQ sof */ + if (!fiq_fsm_enable) { + gintsts.b.sofintr = 1; + DWC_WRITE_REG32(&hcd->core_if->core_global_regs->gintsts, gintsts.d32); + } + return 1; +} + +/** Handles the Rx Status Queue Level Interrupt, which indicates that there is at + * least one packet in the Rx FIFO. The packets are moved from the FIFO to + * memory if the DWC_otg controller is operating in Slave mode. */ +int32_t dwc_otg_hcd_handle_rx_status_q_level_intr(dwc_otg_hcd_t * dwc_otg_hcd) +{ + host_grxsts_data_t grxsts; + dwc_hc_t *hc = NULL; + + DWC_DEBUGPL(DBG_HCD, "--RxStsQ Level Interrupt--\n"); + + grxsts.d32 = + DWC_READ_REG32(&dwc_otg_hcd->core_if->core_global_regs->grxstsp); + + hc = dwc_otg_hcd->hc_ptr_array[grxsts.b.chnum]; + if (!hc) { + DWC_ERROR("Unable to get corresponding channel\n"); + return 0; + } + + /* Packet Status */ + DWC_DEBUGPL(DBG_HCDV, " Ch num = %d\n", grxsts.b.chnum); + DWC_DEBUGPL(DBG_HCDV, " Count = %d\n", grxsts.b.bcnt); + DWC_DEBUGPL(DBG_HCDV, " DPID = %d, hc.dpid = %d\n", grxsts.b.dpid, + hc->data_pid_start); + DWC_DEBUGPL(DBG_HCDV, " PStatus = %d\n", grxsts.b.pktsts); + + switch (grxsts.b.pktsts) { + case DWC_GRXSTS_PKTSTS_IN: + /* Read the data into the host buffer. */ + if (grxsts.b.bcnt > 0) { + dwc_otg_read_packet(dwc_otg_hcd->core_if, + hc->xfer_buff, grxsts.b.bcnt); + + /* Update the HC fields for the next packet received. */ + hc->xfer_count += grxsts.b.bcnt; + hc->xfer_buff += grxsts.b.bcnt; + } + + case DWC_GRXSTS_PKTSTS_IN_XFER_COMP: + case DWC_GRXSTS_PKTSTS_DATA_TOGGLE_ERR: + case DWC_GRXSTS_PKTSTS_CH_HALTED: + /* Handled in interrupt, just ignore data */ + break; + default: + DWC_ERROR("RX_STS_Q Interrupt: Unknown status %d\n", + grxsts.b.pktsts); + break; + } + + return 1; +} + +/** This interrupt occurs when the non-periodic Tx FIFO is half-empty. More + * data packets may be written to the FIFO for OUT transfers. More requests + * may be written to the non-periodic request queue for IN transfers. This + * interrupt is enabled only in Slave mode. */ +int32_t dwc_otg_hcd_handle_np_tx_fifo_empty_intr(dwc_otg_hcd_t * dwc_otg_hcd) +{ + DWC_DEBUGPL(DBG_HCD, "--Non-Periodic TxFIFO Empty Interrupt--\n"); + dwc_otg_hcd_queue_transactions(dwc_otg_hcd, + DWC_OTG_TRANSACTION_NON_PERIODIC); + return 1; +} + +/** This interrupt occurs when the periodic Tx FIFO is half-empty. More data + * packets may be written to the FIFO for OUT transfers. More requests may be + * written to the periodic request queue for IN transfers. This interrupt is + * enabled only in Slave mode. */ +int32_t dwc_otg_hcd_handle_perio_tx_fifo_empty_intr(dwc_otg_hcd_t * dwc_otg_hcd) +{ + DWC_DEBUGPL(DBG_HCD, "--Periodic TxFIFO Empty Interrupt--\n"); + dwc_otg_hcd_queue_transactions(dwc_otg_hcd, + DWC_OTG_TRANSACTION_PERIODIC); + return 1; +} + +/** There are multiple conditions that can cause a port interrupt. This function + * determines which interrupt conditions have occurred and handles them + * appropriately. */ +int32_t dwc_otg_hcd_handle_port_intr(dwc_otg_hcd_t * dwc_otg_hcd) +{ + int retval = 0; + hprt0_data_t hprt0; + hprt0_data_t hprt0_modify; + + hprt0.d32 = DWC_READ_REG32(dwc_otg_hcd->core_if->host_if->hprt0); + hprt0_modify.d32 = DWC_READ_REG32(dwc_otg_hcd->core_if->host_if->hprt0); + + /* Clear appropriate bits in HPRT0 to clear the interrupt bit in + * GINTSTS */ + + hprt0_modify.b.prtena = 0; + hprt0_modify.b.prtconndet = 0; + hprt0_modify.b.prtenchng = 0; + hprt0_modify.b.prtovrcurrchng = 0; + + /* Port Connect Detected + * Set flag and clear if detected */ + if (dwc_otg_hcd->core_if->hibernation_suspend == 1) { + // Dont modify port status if we are in hibernation state + hprt0_modify.b.prtconndet = 1; + hprt0_modify.b.prtenchng = 1; + DWC_WRITE_REG32(dwc_otg_hcd->core_if->host_if->hprt0, hprt0_modify.d32); + hprt0.d32 = DWC_READ_REG32(dwc_otg_hcd->core_if->host_if->hprt0); + return retval; + } + + if (hprt0.b.prtconndet) { + /** @todo - check if steps performed in 'else' block should be perfromed regardles adp */ + if (dwc_otg_hcd->core_if->adp_enable && + dwc_otg_hcd->core_if->adp.vbuson_timer_started == 1) { + DWC_PRINTF("PORT CONNECT DETECTED ----------------\n"); + DWC_TIMER_CANCEL(dwc_otg_hcd->core_if->adp.vbuson_timer); + dwc_otg_hcd->core_if->adp.vbuson_timer_started = 0; + /* TODO - check if this is required, as + * host initialization was already performed + * after initial ADP probing + */ + /*dwc_otg_hcd->core_if->adp.vbuson_timer_started = 0; + dwc_otg_core_init(dwc_otg_hcd->core_if); + dwc_otg_enable_global_interrupts(dwc_otg_hcd->core_if); + cil_hcd_start(dwc_otg_hcd->core_if);*/ + } else { + + DWC_DEBUGPL(DBG_HCD, "--Port Interrupt HPRT0=0x%08x " + "Port Connect Detected--\n", hprt0.d32); + dwc_otg_hcd->flags.b.port_connect_status_change = 1; + dwc_otg_hcd->flags.b.port_connect_status = 1; + hprt0_modify.b.prtconndet = 1; + + /* B-Device has connected, Delete the connection timer. */ + DWC_TIMER_CANCEL(dwc_otg_hcd->conn_timer); + } + /* The Hub driver asserts a reset when it sees port connect + * status change flag */ + retval |= 1; + } + + /* Port Enable Changed + * Clear if detected - Set internal flag if disabled */ + if (hprt0.b.prtenchng) { + DWC_DEBUGPL(DBG_HCD, " --Port Interrupt HPRT0=0x%08x " + "Port Enable Changed--\n", hprt0.d32); + hprt0_modify.b.prtenchng = 1; + if (hprt0.b.prtena == 1) { + hfir_data_t hfir; + int do_reset = 0; + dwc_otg_core_params_t *params = + dwc_otg_hcd->core_if->core_params; + dwc_otg_core_global_regs_t *global_regs = + dwc_otg_hcd->core_if->core_global_regs; + dwc_otg_host_if_t *host_if = + dwc_otg_hcd->core_if->host_if; + + /* Every time when port enables calculate + * HFIR.FrInterval + */ + hfir.d32 = DWC_READ_REG32(&host_if->host_global_regs->hfir); + hfir.b.frint = calc_frame_interval(dwc_otg_hcd->core_if); + DWC_WRITE_REG32(&host_if->host_global_regs->hfir, hfir.d32); + + /* Check if we need to adjust the PHY clock speed for + * low power and adjust it */ + if (params->host_support_fs_ls_low_power) { + gusbcfg_data_t usbcfg; + + usbcfg.d32 = + DWC_READ_REG32(&global_regs->gusbcfg); + + if (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_LOW_SPEED + || hprt0.b.prtspd == + DWC_HPRT0_PRTSPD_FULL_SPEED) { + /* + * Low power + */ + hcfg_data_t hcfg; + if (usbcfg.b.phylpwrclksel == 0) { + /* Set PHY low power clock select for FS/LS devices */ + usbcfg.b.phylpwrclksel = 1; + DWC_WRITE_REG32 + (&global_regs->gusbcfg, + usbcfg.d32); + do_reset = 1; + } + + hcfg.d32 = + DWC_READ_REG32 + (&host_if->host_global_regs->hcfg); + + if (hprt0.b.prtspd == + DWC_HPRT0_PRTSPD_LOW_SPEED + && params->host_ls_low_power_phy_clk + == + DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ) + { + /* 6 MHZ */ + DWC_DEBUGPL(DBG_CIL, + "FS_PHY programming HCFG to 6 MHz (Low Power)\n"); + if (hcfg.b.fslspclksel != + DWC_HCFG_6_MHZ) { + hcfg.b.fslspclksel = + DWC_HCFG_6_MHZ; + DWC_WRITE_REG32 + (&host_if->host_global_regs->hcfg, + hcfg.d32); + do_reset = 1; + } + } else { + /* 48 MHZ */ + DWC_DEBUGPL(DBG_CIL, + "FS_PHY programming HCFG to 48 MHz ()\n"); + if (hcfg.b.fslspclksel != + DWC_HCFG_48_MHZ) { + hcfg.b.fslspclksel = + DWC_HCFG_48_MHZ; + DWC_WRITE_REG32 + (&host_if->host_global_regs->hcfg, + hcfg.d32); + do_reset = 1; + } + } + } else { + /* + * Not low power + */ + if (usbcfg.b.phylpwrclksel == 1) { + usbcfg.b.phylpwrclksel = 0; + DWC_WRITE_REG32 + (&global_regs->gusbcfg, + usbcfg.d32); + do_reset = 1; + } + } + + if (do_reset) { + DWC_TASK_SCHEDULE(dwc_otg_hcd->reset_tasklet); + } + } + + if (!do_reset) { + /* Port has been enabled set the reset change flag */ + dwc_otg_hcd->flags.b.port_reset_change = 1; + } + } else { + dwc_otg_hcd->flags.b.port_enable_change = 1; + } + retval |= 1; + } + + /** Overcurrent Change Interrupt */ + if (hprt0.b.prtovrcurrchng) { + DWC_DEBUGPL(DBG_HCD, " --Port Interrupt HPRT0=0x%08x " + "Port Overcurrent Changed--\n", hprt0.d32); + dwc_otg_hcd->flags.b.port_over_current_change = 1; + hprt0_modify.b.prtovrcurrchng = 1; + retval |= 1; + } + + /* Clear Port Interrupts */ + DWC_WRITE_REG32(dwc_otg_hcd->core_if->host_if->hprt0, hprt0_modify.d32); + + return retval; +} + +/** This interrupt indicates that one or more host channels has a pending + * interrupt. There are multiple conditions that can cause each host channel + * interrupt. This function determines which conditions have occurred for each + * host channel interrupt and handles them appropriately. */ +int32_t dwc_otg_hcd_handle_hc_intr(dwc_otg_hcd_t * dwc_otg_hcd) +{ + int i; + int retval = 0; + haint_data_t haint = { .d32 = 0 } ; + + /* Clear appropriate bits in HCINTn to clear the interrupt bit in + * GINTSTS */ + + if (!fiq_fsm_enable) + haint.d32 = dwc_otg_read_host_all_channels_intr(dwc_otg_hcd->core_if); + + // Overwrite with saved interrupts from fiq handler + if(fiq_fsm_enable) + { + /* check the mask? */ + local_fiq_disable(); + fiq_fsm_spin_lock(&dwc_otg_hcd->fiq_state->lock); + haint.b2.chint |= ~(dwc_otg_hcd->fiq_state->haintmsk_saved.b2.chint); + dwc_otg_hcd->fiq_state->haintmsk_saved.b2.chint = ~0; + fiq_fsm_spin_unlock(&dwc_otg_hcd->fiq_state->lock); + local_fiq_enable(); + } + + for (i = 0; i < dwc_otg_hcd->core_if->core_params->host_channels; i++) { + if (haint.b2.chint & (1 << i)) { + retval |= dwc_otg_hcd_handle_hc_n_intr(dwc_otg_hcd, i); + } + } + + return retval; +} + +/** + * Gets the actual length of a transfer after the transfer halts. _halt_status + * holds the reason for the halt. + * + * For IN transfers where halt_status is DWC_OTG_HC_XFER_COMPLETE, + * *short_read is set to 1 upon return if less than the requested + * number of bytes were transferred. Otherwise, *short_read is set to 0 upon + * return. short_read may also be NULL on entry, in which case it remains + * unchanged. + */ +static uint32_t get_actual_xfer_length(dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_qtd_t * qtd, + dwc_otg_halt_status_e halt_status, + int *short_read) +{ + hctsiz_data_t hctsiz; + uint32_t length; + + if (short_read != NULL) { + *short_read = 0; + } + hctsiz.d32 = DWC_READ_REG32(&hc_regs->hctsiz); + + if (halt_status == DWC_OTG_HC_XFER_COMPLETE) { + if (hc->ep_is_in) { + length = hc->xfer_len - hctsiz.b.xfersize; + if (short_read != NULL) { + *short_read = (hctsiz.b.xfersize != 0); + } + } else if (hc->qh->do_split) { + //length = split_out_xfersize[hc->hc_num]; + length = qtd->ssplit_out_xfer_count; + } else { + length = hc->xfer_len; + } + } else { + /* + * Must use the hctsiz.pktcnt field to determine how much data + * has been transferred. This field reflects the number of + * packets that have been transferred via the USB. This is + * always an integral number of packets if the transfer was + * halted before its normal completion. (Can't use the + * hctsiz.xfersize field because that reflects the number of + * bytes transferred via the AHB, not the USB). + */ + length = + (hc->start_pkt_count - hctsiz.b.pktcnt) * hc->max_packet; + } + + return length; +} + +/** + * Updates the state of the URB after a Transfer Complete interrupt on the + * host channel. Updates the actual_length field of the URB based on the + * number of bytes transferred via the host channel. Sets the URB status + * if the data transfer is finished. + * + * @return 1 if the data transfer specified by the URB is completely finished, + * 0 otherwise. + */ +static int update_urb_state_xfer_comp(dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_hcd_urb_t * urb, + dwc_otg_qtd_t * qtd) +{ + int xfer_done = 0; + int short_read = 0; + + int xfer_length; + + xfer_length = get_actual_xfer_length(hc, hc_regs, qtd, + DWC_OTG_HC_XFER_COMPLETE, + &short_read); + + if (urb->actual_length + xfer_length > urb->length) { + printk_once(KERN_DEBUG "dwc_otg: DEVICE:%03d : %s:%d:trimming xfer length\n", + hc->dev_addr, __func__, __LINE__); + xfer_length = urb->length - urb->actual_length; + } + + /* non DWORD-aligned buffer case handling. */ + if (hc->align_buff && xfer_length && hc->ep_is_in) { + dwc_memcpy(urb->buf + urb->actual_length, hc->qh->dw_align_buf, + xfer_length); + } + + urb->actual_length += xfer_length; + + if (xfer_length && (hc->ep_type == DWC_OTG_EP_TYPE_BULK) && + (urb->flags & URB_SEND_ZERO_PACKET) + && (urb->actual_length == urb->length) + && !(urb->length % hc->max_packet)) { + xfer_done = 0; + } else if (short_read || urb->actual_length >= urb->length) { + xfer_done = 1; + urb->status = 0; + } + +#ifdef DEBUG + { + hctsiz_data_t hctsiz; + hctsiz.d32 = DWC_READ_REG32(&hc_regs->hctsiz); + DWC_DEBUGPL(DBG_HCDV, "DWC_otg: %s: %s, channel %d\n", + __func__, (hc->ep_is_in ? "IN" : "OUT"), + hc->hc_num); + DWC_DEBUGPL(DBG_HCDV, " hc->xfer_len %d\n", hc->xfer_len); + DWC_DEBUGPL(DBG_HCDV, " hctsiz.xfersize %d\n", + hctsiz.b.xfersize); + DWC_DEBUGPL(DBG_HCDV, " urb->transfer_buffer_length %d\n", + urb->length); + DWC_DEBUGPL(DBG_HCDV, " urb->actual_length %d\n", + urb->actual_length); + DWC_DEBUGPL(DBG_HCDV, " short_read %d, xfer_done %d\n", + short_read, xfer_done); + } +#endif + + return xfer_done; +} + +/* + * Save the starting data toggle for the next transfer. The data toggle is + * saved in the QH for non-control transfers and it's saved in the QTD for + * control transfers. + */ +void dwc_otg_hcd_save_data_toggle(dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, dwc_otg_qtd_t * qtd) +{ + hctsiz_data_t hctsiz; + hctsiz.d32 = DWC_READ_REG32(&hc_regs->hctsiz); + + if (hc->ep_type != DWC_OTG_EP_TYPE_CONTROL) { + dwc_otg_qh_t *qh = hc->qh; + if (hctsiz.b.pid == DWC_HCTSIZ_DATA0) { + qh->data_toggle = DWC_OTG_HC_PID_DATA0; + } else { + qh->data_toggle = DWC_OTG_HC_PID_DATA1; + } + } else { + if (hctsiz.b.pid == DWC_HCTSIZ_DATA0) { + qtd->data_toggle = DWC_OTG_HC_PID_DATA0; + } else { + qtd->data_toggle = DWC_OTG_HC_PID_DATA1; + } + } +} + +/** + * Updates the state of an Isochronous URB when the transfer is stopped for + * any reason. The fields of the current entry in the frame descriptor array + * are set based on the transfer state and the input _halt_status. Completes + * the Isochronous URB if all the URB frames have been completed. + * + * @return DWC_OTG_HC_XFER_COMPLETE if there are more frames remaining to be + * transferred in the URB. Otherwise return DWC_OTG_HC_XFER_URB_COMPLETE. + */ +static dwc_otg_halt_status_e +update_isoc_urb_state(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_qtd_t * qtd, dwc_otg_halt_status_e halt_status) +{ + dwc_otg_hcd_urb_t *urb = qtd->urb; + dwc_otg_halt_status_e ret_val = halt_status; + struct dwc_otg_hcd_iso_packet_desc *frame_desc; + + frame_desc = &urb->iso_descs[qtd->isoc_frame_index]; + switch (halt_status) { + case DWC_OTG_HC_XFER_COMPLETE: + frame_desc->status = 0; + frame_desc->actual_length = + get_actual_xfer_length(hc, hc_regs, qtd, halt_status, NULL); + + /* non DWORD-aligned buffer case handling. */ + if (hc->align_buff && frame_desc->actual_length && hc->ep_is_in) { + dwc_memcpy(urb->buf + frame_desc->offset + qtd->isoc_split_offset, + hc->qh->dw_align_buf, frame_desc->actual_length); + } + + break; + case DWC_OTG_HC_XFER_FRAME_OVERRUN: + urb->error_count++; + if (hc->ep_is_in) { + frame_desc->status = -DWC_E_NO_STREAM_RES; + } else { + frame_desc->status = -DWC_E_COMMUNICATION; + } + frame_desc->actual_length = 0; + break; + case DWC_OTG_HC_XFER_BABBLE_ERR: + urb->error_count++; + frame_desc->status = -DWC_E_OVERFLOW; + /* Don't need to update actual_length in this case. */ + break; + case DWC_OTG_HC_XFER_XACT_ERR: + urb->error_count++; + frame_desc->status = -DWC_E_PROTOCOL; + frame_desc->actual_length = + get_actual_xfer_length(hc, hc_regs, qtd, halt_status, NULL); + + /* non DWORD-aligned buffer case handling. */ + if (hc->align_buff && frame_desc->actual_length && hc->ep_is_in) { + dwc_memcpy(urb->buf + frame_desc->offset + qtd->isoc_split_offset, + hc->qh->dw_align_buf, frame_desc->actual_length); + } + /* Skip whole frame */ + if (hc->qh->do_split && (hc->ep_type == DWC_OTG_EP_TYPE_ISOC) && + hc->ep_is_in && hcd->core_if->dma_enable) { + qtd->complete_split = 0; + qtd->isoc_split_offset = 0; + } + + break; + default: + DWC_ASSERT(1, "Unhandled _halt_status (%d)\n", halt_status); + break; + } + if (++qtd->isoc_frame_index == urb->packet_count) { + /* + * urb->status is not used for isoc transfers. + * The individual frame_desc statuses are used instead. + */ + hcd->fops->complete(hcd, urb->priv, urb, 0); + ret_val = DWC_OTG_HC_XFER_URB_COMPLETE; + } else { + ret_val = DWC_OTG_HC_XFER_COMPLETE; + } + return ret_val; +} + +/** + * Frees the first QTD in the QH's list if free_qtd is 1. For non-periodic + * QHs, removes the QH from the active non-periodic schedule. If any QTDs are + * still linked to the QH, the QH is added to the end of the inactive + * non-periodic schedule. For periodic QHs, removes the QH from the periodic + * schedule if no more QTDs are linked to the QH. + */ +static void deactivate_qh(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh, int free_qtd) +{ + int continue_split = 0; + dwc_otg_qtd_t *qtd; + + DWC_DEBUGPL(DBG_HCDV, " %s(%p,%p,%d)\n", __func__, hcd, qh, free_qtd); + + qtd = DWC_CIRCLEQ_FIRST(&qh->qtd_list); + + if (qtd->complete_split) { + continue_split = 1; + } else if (qtd->isoc_split_pos == DWC_HCSPLIT_XACTPOS_MID || + qtd->isoc_split_pos == DWC_HCSPLIT_XACTPOS_END) { + continue_split = 1; + } + + if (free_qtd) { + dwc_otg_hcd_qtd_remove_and_free(hcd, qtd, qh); + continue_split = 0; + } + + qh->channel = NULL; + dwc_otg_hcd_qh_deactivate(hcd, qh, continue_split); +} + +/** + * Releases a host channel for use by other transfers. Attempts to select and + * queue more transactions since at least one host channel is available. + * + * @param hcd The HCD state structure. + * @param hc The host channel to release. + * @param qtd The QTD associated with the host channel. This QTD may be freed + * if the transfer is complete or an error has occurred. + * @param halt_status Reason the channel is being released. This status + * determines the actions taken by this function. + */ +static void release_channel(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_qtd_t * qtd, + dwc_otg_halt_status_e halt_status) +{ + dwc_otg_transaction_type_e tr_type; + int free_qtd; + dwc_irqflags_t flags; + dwc_spinlock_t *channel_lock = hcd->channel_lock; + + int hog_port = 0; + + DWC_DEBUGPL(DBG_HCDV, " %s: channel %d, halt_status %d, xfer_len %d\n", + __func__, hc->hc_num, halt_status, hc->xfer_len); + + if(fiq_fsm_enable && hc->do_split) { + if(!hc->ep_is_in && hc->ep_type == UE_ISOCHRONOUS) { + if(hc->xact_pos == DWC_HCSPLIT_XACTPOS_MID || + hc->xact_pos == DWC_HCSPLIT_XACTPOS_BEGIN) { + hog_port = 0; + } + } + } + + switch (halt_status) { + case DWC_OTG_HC_XFER_URB_COMPLETE: + free_qtd = 1; + break; + case DWC_OTG_HC_XFER_AHB_ERR: + case DWC_OTG_HC_XFER_STALL: + case DWC_OTG_HC_XFER_BABBLE_ERR: + free_qtd = 1; + break; + case DWC_OTG_HC_XFER_XACT_ERR: + if (qtd->error_count >= 3) { + DWC_DEBUGPL(DBG_HCDV, + " Complete URB with transaction error\n"); + free_qtd = 1; + qtd->urb->status = -DWC_E_PROTOCOL; + hcd->fops->complete(hcd, qtd->urb->priv, + qtd->urb, -DWC_E_PROTOCOL); + } else { + free_qtd = 0; + } + break; + case DWC_OTG_HC_XFER_URB_DEQUEUE: + /* + * The QTD has already been removed and the QH has been + * deactivated. Don't want to do anything except release the + * host channel and try to queue more transfers. + */ + goto cleanup; + case DWC_OTG_HC_XFER_NO_HALT_STATUS: + free_qtd = 0; + break; + case DWC_OTG_HC_XFER_PERIODIC_INCOMPLETE: + DWC_DEBUGPL(DBG_HCDV, + " Complete URB with I/O error\n"); + free_qtd = 1; + qtd->urb->status = -DWC_E_IO; + hcd->fops->complete(hcd, qtd->urb->priv, + qtd->urb, -DWC_E_IO); + break; + default: + free_qtd = 0; + break; + } + + deactivate_qh(hcd, hc->qh, free_qtd); + +cleanup: + /* + * Release the host channel for use by other transfers. The cleanup + * function clears the channel interrupt enables and conditions, so + * there's no need to clear the Channel Halted interrupt separately. + */ + if (fiq_fsm_enable && hcd->fiq_state->channel[hc->hc_num].fsm != FIQ_PASSTHROUGH) + dwc_otg_cleanup_fiq_channel(hcd, hc->hc_num); + dwc_otg_hc_cleanup(hcd->core_if, hc); + DWC_CIRCLEQ_INSERT_TAIL(&hcd->free_hc_list, hc, hc_list_entry); + + if (!microframe_schedule) { + switch (hc->ep_type) { + case DWC_OTG_EP_TYPE_CONTROL: + case DWC_OTG_EP_TYPE_BULK: + hcd->non_periodic_channels--; + break; + + default: + /* + * Don't release reservations for periodic channels here. + * That's done when a periodic transfer is descheduled (i.e. + * when the QH is removed from the periodic schedule). + */ + break; + } + } else { + + DWC_SPINLOCK_IRQSAVE(channel_lock, &flags); + hcd->available_host_channels++; + fiq_print(FIQDBG_INT, hcd->fiq_state, "AHC = %d ", hcd->available_host_channels); + DWC_SPINUNLOCK_IRQRESTORE(channel_lock, flags); + } + + /* Try to queue more transfers now that there's a free channel. */ + tr_type = dwc_otg_hcd_select_transactions(hcd); + if (tr_type != DWC_OTG_TRANSACTION_NONE) { + dwc_otg_hcd_queue_transactions(hcd, tr_type); + } +} + +/** + * Halts a host channel. If the channel cannot be halted immediately because + * the request queue is full, this function ensures that the FIFO empty + * interrupt for the appropriate queue is enabled so that the halt request can + * be queued when there is space in the request queue. + * + * This function may also be called in DMA mode. In that case, the channel is + * simply released since the core always halts the channel automatically in + * DMA mode. + */ +static void halt_channel(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_qtd_t * qtd, dwc_otg_halt_status_e halt_status) +{ + if (hcd->core_if->dma_enable) { + release_channel(hcd, hc, qtd, halt_status); + return; + } + + /* Slave mode processing... */ + dwc_otg_hc_halt(hcd->core_if, hc, halt_status); + + if (hc->halt_on_queue) { + gintmsk_data_t gintmsk = {.d32 = 0 }; + dwc_otg_core_global_regs_t *global_regs; + global_regs = hcd->core_if->core_global_regs; + + if (hc->ep_type == DWC_OTG_EP_TYPE_CONTROL || + hc->ep_type == DWC_OTG_EP_TYPE_BULK) { + /* + * Make sure the Non-periodic Tx FIFO empty interrupt + * is enabled so that the non-periodic schedule will + * be processed. + */ + gintmsk.b.nptxfempty = 1; + if (fiq_enable) { + local_fiq_disable(); + fiq_fsm_spin_lock(&hcd->fiq_state->lock); + DWC_MODIFY_REG32(&global_regs->gintmsk, 0, gintmsk.d32); + fiq_fsm_spin_unlock(&hcd->fiq_state->lock); + local_fiq_enable(); + } else { + DWC_MODIFY_REG32(&global_regs->gintmsk, 0, gintmsk.d32); + } + } else { + /* + * Move the QH from the periodic queued schedule to + * the periodic assigned schedule. This allows the + * halt to be queued when the periodic schedule is + * processed. + */ + DWC_LIST_MOVE_HEAD(&hcd->periodic_sched_assigned, + &hc->qh->qh_list_entry); + + /* + * Make sure the Periodic Tx FIFO Empty interrupt is + * enabled so that the periodic schedule will be + * processed. + */ + gintmsk.b.ptxfempty = 1; + if (fiq_enable) { + local_fiq_disable(); + fiq_fsm_spin_lock(&hcd->fiq_state->lock); + DWC_MODIFY_REG32(&global_regs->gintmsk, 0, gintmsk.d32); + fiq_fsm_spin_unlock(&hcd->fiq_state->lock); + local_fiq_enable(); + } else { + DWC_MODIFY_REG32(&global_regs->gintmsk, 0, gintmsk.d32); + } + } + } +} + +/** + * Performs common cleanup for non-periodic transfers after a Transfer + * Complete interrupt. This function should be called after any endpoint type + * specific handling is finished to release the host channel. + */ +static void complete_non_periodic_xfer(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_qtd_t * qtd, + dwc_otg_halt_status_e halt_status) +{ + hcint_data_t hcint; + + qtd->error_count = 0; + + hcint.d32 = DWC_READ_REG32(&hc_regs->hcint); + if (hcint.b.nyet) { + /* + * Got a NYET on the last transaction of the transfer. This + * means that the endpoint should be in the PING state at the + * beginning of the next transfer. + */ + hc->qh->ping_state = 1; + clear_hc_int(hc_regs, nyet); + } + + /* + * Always halt and release the host channel to make it available for + * more transfers. There may still be more phases for a control + * transfer or more data packets for a bulk transfer at this point, + * but the host channel is still halted. A channel will be reassigned + * to the transfer when the non-periodic schedule is processed after + * the channel is released. This allows transactions to be queued + * properly via dwc_otg_hcd_queue_transactions, which also enables the + * Tx FIFO Empty interrupt if necessary. + */ + if (hc->ep_is_in) { + /* + * IN transfers in Slave mode require an explicit disable to + * halt the channel. (In DMA mode, this call simply releases + * the channel.) + */ + halt_channel(hcd, hc, qtd, halt_status); + } else { + /* + * The channel is automatically disabled by the core for OUT + * transfers in Slave mode. + */ + release_channel(hcd, hc, qtd, halt_status); + } +} + +/** + * Performs common cleanup for periodic transfers after a Transfer Complete + * interrupt. This function should be called after any endpoint type specific + * handling is finished to release the host channel. + */ +static void complete_periodic_xfer(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_qtd_t * qtd, + dwc_otg_halt_status_e halt_status) +{ + hctsiz_data_t hctsiz; + qtd->error_count = 0; + + hctsiz.d32 = DWC_READ_REG32(&hc_regs->hctsiz); + if (!hc->ep_is_in || hctsiz.b.pktcnt == 0) { + /* Core halts channel in these cases. */ + release_channel(hcd, hc, qtd, halt_status); + } else { + /* Flush any outstanding requests from the Tx queue. */ + halt_channel(hcd, hc, qtd, halt_status); + } +} + +static int32_t handle_xfercomp_isoc_split_in(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_qtd_t * qtd) +{ + uint32_t len; + struct dwc_otg_hcd_iso_packet_desc *frame_desc; + frame_desc = &qtd->urb->iso_descs[qtd->isoc_frame_index]; + + len = get_actual_xfer_length(hc, hc_regs, qtd, + DWC_OTG_HC_XFER_COMPLETE, NULL); + + if (!len) { + qtd->complete_split = 0; + qtd->isoc_split_offset = 0; + return 0; + } + frame_desc->actual_length += len; + + if (hc->align_buff && len) + dwc_memcpy(qtd->urb->buf + frame_desc->offset + + qtd->isoc_split_offset, hc->qh->dw_align_buf, len); + qtd->isoc_split_offset += len; + + if (frame_desc->length == frame_desc->actual_length) { + frame_desc->status = 0; + qtd->isoc_frame_index++; + qtd->complete_split = 0; + qtd->isoc_split_offset = 0; + } + + if (qtd->isoc_frame_index == qtd->urb->packet_count) { + hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, 0); + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE); + } else { + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NO_HALT_STATUS); + } + + return 1; /* Indicates that channel released */ +} + +/** + * Handles a host channel Transfer Complete interrupt. This handler may be + * called in either DMA mode or Slave mode. + */ +static int32_t handle_hc_xfercomp_intr(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_qtd_t * qtd) +{ + int urb_xfer_done; + dwc_otg_halt_status_e halt_status = DWC_OTG_HC_XFER_COMPLETE; + dwc_otg_hcd_urb_t *urb = qtd->urb; + int pipe_type = dwc_otg_hcd_get_pipe_type(&urb->pipe_info); + + DWC_DEBUGPL(DBG_HCDI, "--Host Channel %d Interrupt: " + "Transfer Complete--\n", hc->hc_num); + + if (hcd->core_if->dma_desc_enable) { + dwc_otg_hcd_complete_xfer_ddma(hcd, hc, hc_regs, halt_status); + if (pipe_type == UE_ISOCHRONOUS) { + /* Do not disable the interrupt, just clear it */ + clear_hc_int(hc_regs, xfercomp); + return 1; + } + goto handle_xfercomp_done; + } + + /* + * Handle xfer complete on CSPLIT. + */ + + if (hc->qh->do_split) { + if ((hc->ep_type == DWC_OTG_EP_TYPE_ISOC) && hc->ep_is_in + && hcd->core_if->dma_enable) { + if (qtd->complete_split + && handle_xfercomp_isoc_split_in(hcd, hc, hc_regs, + qtd)) + goto handle_xfercomp_done; + } else { + qtd->complete_split = 0; + } + } + + /* Update the QTD and URB states. */ + switch (pipe_type) { + case UE_CONTROL: + switch (qtd->control_phase) { + case DWC_OTG_CONTROL_SETUP: + if (urb->length > 0) { + qtd->control_phase = DWC_OTG_CONTROL_DATA; + } else { + qtd->control_phase = DWC_OTG_CONTROL_STATUS; + } + DWC_DEBUGPL(DBG_HCDV, + " Control setup transaction done\n"); + halt_status = DWC_OTG_HC_XFER_COMPLETE; + break; + case DWC_OTG_CONTROL_DATA:{ + urb_xfer_done = + update_urb_state_xfer_comp(hc, hc_regs, urb, + qtd); + if (urb_xfer_done) { + qtd->control_phase = + DWC_OTG_CONTROL_STATUS; + DWC_DEBUGPL(DBG_HCDV, + " Control data transfer done\n"); + } else { + dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd); + } + halt_status = DWC_OTG_HC_XFER_COMPLETE; + break; + } + case DWC_OTG_CONTROL_STATUS: + DWC_DEBUGPL(DBG_HCDV, " Control transfer complete\n"); + if (urb->status == -DWC_E_IN_PROGRESS) { + urb->status = 0; + } + hcd->fops->complete(hcd, urb->priv, urb, urb->status); + halt_status = DWC_OTG_HC_XFER_URB_COMPLETE; + break; + } + + complete_non_periodic_xfer(hcd, hc, hc_regs, qtd, halt_status); + break; + case UE_BULK: + DWC_DEBUGPL(DBG_HCDV, " Bulk transfer complete\n"); + urb_xfer_done = + update_urb_state_xfer_comp(hc, hc_regs, urb, qtd); + if (urb_xfer_done) { + hcd->fops->complete(hcd, urb->priv, urb, urb->status); + halt_status = DWC_OTG_HC_XFER_URB_COMPLETE; + } else { + halt_status = DWC_OTG_HC_XFER_COMPLETE; + } + + dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd); + complete_non_periodic_xfer(hcd, hc, hc_regs, qtd, halt_status); + break; + case UE_INTERRUPT: + DWC_DEBUGPL(DBG_HCDV, " Interrupt transfer complete\n"); + urb_xfer_done = + update_urb_state_xfer_comp(hc, hc_regs, urb, qtd); + + /* + * Interrupt URB is done on the first transfer complete + * interrupt. + */ + if (urb_xfer_done) { + hcd->fops->complete(hcd, urb->priv, urb, urb->status); + halt_status = DWC_OTG_HC_XFER_URB_COMPLETE; + } else { + halt_status = DWC_OTG_HC_XFER_COMPLETE; + } + + dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd); + complete_periodic_xfer(hcd, hc, hc_regs, qtd, halt_status); + break; + case UE_ISOCHRONOUS: + DWC_DEBUGPL(DBG_HCDV, " Isochronous transfer complete\n"); + if (qtd->isoc_split_pos == DWC_HCSPLIT_XACTPOS_ALL) { + halt_status = + update_isoc_urb_state(hcd, hc, hc_regs, qtd, + DWC_OTG_HC_XFER_COMPLETE); + } + complete_periodic_xfer(hcd, hc, hc_regs, qtd, halt_status); + break; + } + +handle_xfercomp_done: + disable_hc_int(hc_regs, xfercompl); + + return 1; +} + +/** + * Handles a host channel STALL interrupt. This handler may be called in + * either DMA mode or Slave mode. + */ +static int32_t handle_hc_stall_intr(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_qtd_t * qtd) +{ + dwc_otg_hcd_urb_t *urb = qtd->urb; + int pipe_type = dwc_otg_hcd_get_pipe_type(&urb->pipe_info); + + DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: " + "STALL Received--\n", hc->hc_num); + + if (hcd->core_if->dma_desc_enable) { + dwc_otg_hcd_complete_xfer_ddma(hcd, hc, hc_regs, DWC_OTG_HC_XFER_STALL); + goto handle_stall_done; + } + + if (pipe_type == UE_CONTROL) { + hcd->fops->complete(hcd, urb->priv, urb, -DWC_E_PIPE); + } + + if (pipe_type == UE_BULK || pipe_type == UE_INTERRUPT) { + hcd->fops->complete(hcd, urb->priv, urb, -DWC_E_PIPE); + /* + * USB protocol requires resetting the data toggle for bulk + * and interrupt endpoints when a CLEAR_FEATURE(ENDPOINT_HALT) + * setup command is issued to the endpoint. Anticipate the + * CLEAR_FEATURE command since a STALL has occurred and reset + * the data toggle now. + */ + hc->qh->data_toggle = 0; + } + + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_STALL); + +handle_stall_done: + disable_hc_int(hc_regs, stall); + + return 1; +} + +/* + * Updates the state of the URB when a transfer has been stopped due to an + * abnormal condition before the transfer completes. Modifies the + * actual_length field of the URB to reflect the number of bytes that have + * actually been transferred via the host channel. + */ +static void update_urb_state_xfer_intr(dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_hcd_urb_t * urb, + dwc_otg_qtd_t * qtd, + dwc_otg_halt_status_e halt_status) +{ + uint32_t bytes_transferred = get_actual_xfer_length(hc, hc_regs, qtd, + halt_status, NULL); + + if (urb->actual_length + bytes_transferred > urb->length) { + printk_once(KERN_DEBUG "dwc_otg: DEVICE:%03d : %s:%d:trimming xfer length\n", + hc->dev_addr, __func__, __LINE__); + bytes_transferred = urb->length - urb->actual_length; + } + + /* non DWORD-aligned buffer case handling. */ + if (hc->align_buff && bytes_transferred && hc->ep_is_in) { + dwc_memcpy(urb->buf + urb->actual_length, hc->qh->dw_align_buf, + bytes_transferred); + } + + urb->actual_length += bytes_transferred; + +#ifdef DEBUG + { + hctsiz_data_t hctsiz; + hctsiz.d32 = DWC_READ_REG32(&hc_regs->hctsiz); + DWC_DEBUGPL(DBG_HCDV, "DWC_otg: %s: %s, channel %d\n", + __func__, (hc->ep_is_in ? "IN" : "OUT"), + hc->hc_num); + DWC_DEBUGPL(DBG_HCDV, " hc->start_pkt_count %d\n", + hc->start_pkt_count); + DWC_DEBUGPL(DBG_HCDV, " hctsiz.pktcnt %d\n", hctsiz.b.pktcnt); + DWC_DEBUGPL(DBG_HCDV, " hc->max_packet %d\n", hc->max_packet); + DWC_DEBUGPL(DBG_HCDV, " bytes_transferred %d\n", + bytes_transferred); + DWC_DEBUGPL(DBG_HCDV, " urb->actual_length %d\n", + urb->actual_length); + DWC_DEBUGPL(DBG_HCDV, " urb->transfer_buffer_length %d\n", + urb->length); + } +#endif +} + +/** + * Handles a host channel NAK interrupt. This handler may be called in either + * DMA mode or Slave mode. + */ +static int32_t handle_hc_nak_intr(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_qtd_t * qtd) +{ + DWC_DEBUGPL(DBG_HCDI, "--Host Channel %d Interrupt: " + "NAK Received--\n", hc->hc_num); + + /* + * When we get bulk NAKs then remember this so we holdoff on this qh until + * the beginning of the next frame + */ + switch(dwc_otg_hcd_get_pipe_type(&qtd->urb->pipe_info)) { + case UE_BULK: + case UE_CONTROL: + if (nak_holdoff && qtd->qh->do_split) + hc->qh->nak_frame = dwc_otg_hcd_get_frame_number(hcd); + } + + /* + * Handle NAK for IN/OUT SSPLIT/CSPLIT transfers, bulk, control, and + * interrupt. Re-start the SSPLIT transfer. + */ + if (hc->do_split) { + if (hc->complete_split) { + qtd->error_count = 0; + } + qtd->complete_split = 0; + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NAK); + goto handle_nak_done; + } + + switch (dwc_otg_hcd_get_pipe_type(&qtd->urb->pipe_info)) { + case UE_CONTROL: + case UE_BULK: + if (hcd->core_if->dma_enable && hc->ep_is_in) { + /* + * NAK interrupts are enabled on bulk/control IN + * transfers in DMA mode for the sole purpose of + * resetting the error count after a transaction error + * occurs. The core will continue transferring data. + * Disable other interrupts unmasked for the same + * reason. + */ + disable_hc_int(hc_regs, datatglerr); + disable_hc_int(hc_regs, ack); + qtd->error_count = 0; + goto handle_nak_done; + } + + /* + * NAK interrupts normally occur during OUT transfers in DMA + * or Slave mode. For IN transfers, more requests will be + * queued as request queue space is available. + */ + qtd->error_count = 0; + + if (!hc->qh->ping_state) { + update_urb_state_xfer_intr(hc, hc_regs, + qtd->urb, qtd, + DWC_OTG_HC_XFER_NAK); + dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd); + + if (hc->speed == DWC_OTG_EP_SPEED_HIGH) + hc->qh->ping_state = 1; + } + + /* + * Halt the channel so the transfer can be re-started from + * the appropriate point or the PING protocol will + * start/continue. + */ + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NAK); + break; + case UE_INTERRUPT: + qtd->error_count = 0; + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NAK); + break; + case UE_ISOCHRONOUS: + /* Should never get called for isochronous transfers. */ + DWC_ASSERT(1, "NACK interrupt for ISOC transfer\n"); + break; + } + +handle_nak_done: + disable_hc_int(hc_regs, nak); + + return 1; +} + +/** + * Handles a host channel ACK interrupt. This interrupt is enabled when + * performing the PING protocol in Slave mode, when errors occur during + * either Slave mode or DMA mode, and during Start Split transactions. + */ +static int32_t handle_hc_ack_intr(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_qtd_t * qtd) +{ + DWC_DEBUGPL(DBG_HCDI, "--Host Channel %d Interrupt: " + "ACK Received--\n", hc->hc_num); + + if (hc->do_split) { + /* + * Handle ACK on SSPLIT. + * ACK should not occur in CSPLIT. + */ + if (!hc->ep_is_in && hc->data_pid_start != DWC_OTG_HC_PID_SETUP) { + qtd->ssplit_out_xfer_count = hc->xfer_len; + } + if (!(hc->ep_type == DWC_OTG_EP_TYPE_ISOC && !hc->ep_is_in)) { + /* Don't need complete for isochronous out transfers. */ + qtd->complete_split = 1; + } + + /* ISOC OUT */ + if (hc->ep_type == DWC_OTG_EP_TYPE_ISOC && !hc->ep_is_in) { + switch (hc->xact_pos) { + case DWC_HCSPLIT_XACTPOS_ALL: + break; + case DWC_HCSPLIT_XACTPOS_END: + qtd->isoc_split_pos = DWC_HCSPLIT_XACTPOS_ALL; + qtd->isoc_split_offset = 0; + break; + case DWC_HCSPLIT_XACTPOS_BEGIN: + case DWC_HCSPLIT_XACTPOS_MID: + /* + * For BEGIN or MID, calculate the length for + * the next microframe to determine the correct + * SSPLIT token, either MID or END. + */ + { + struct dwc_otg_hcd_iso_packet_desc + *frame_desc; + + frame_desc = + &qtd->urb-> + iso_descs[qtd->isoc_frame_index]; + qtd->isoc_split_offset += 188; + + if ((frame_desc->length - + qtd->isoc_split_offset) <= 188) { + qtd->isoc_split_pos = + DWC_HCSPLIT_XACTPOS_END; + } else { + qtd->isoc_split_pos = + DWC_HCSPLIT_XACTPOS_MID; + } + + } + break; + } + } else { + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_ACK); + } + } else { + /* + * An unmasked ACK on a non-split DMA transaction is + * for the sole purpose of resetting error counts. Disable other + * interrupts unmasked for the same reason. + */ + if(hcd->core_if->dma_enable) { + disable_hc_int(hc_regs, datatglerr); + disable_hc_int(hc_regs, nak); + } + qtd->error_count = 0; + + if (hc->qh->ping_state) { + hc->qh->ping_state = 0; + /* + * Halt the channel so the transfer can be re-started + * from the appropriate point. This only happens in + * Slave mode. In DMA mode, the ping_state is cleared + * when the transfer is started because the core + * automatically executes the PING, then the transfer. + */ + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_ACK); + } + } + + /* + * If the ACK occurred when _not_ in the PING state, let the channel + * continue transferring data after clearing the error count. + */ + + disable_hc_int(hc_regs, ack); + + return 1; +} + +/** + * Handles a host channel NYET interrupt. This interrupt should only occur on + * Bulk and Control OUT endpoints and for complete split transactions. If a + * NYET occurs at the same time as a Transfer Complete interrupt, it is + * handled in the xfercomp interrupt handler, not here. This handler may be + * called in either DMA mode or Slave mode. + */ +static int32_t handle_hc_nyet_intr(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_qtd_t * qtd) +{ + DWC_DEBUGPL(DBG_HCDI, "--Host Channel %d Interrupt: " + "NYET Received--\n", hc->hc_num); + + /* + * NYET on CSPLIT + * re-do the CSPLIT immediately on non-periodic + */ + if (hc->do_split && hc->complete_split) { + if (hc->ep_is_in && (hc->ep_type == DWC_OTG_EP_TYPE_ISOC) + && hcd->core_if->dma_enable) { + qtd->complete_split = 0; + qtd->isoc_split_offset = 0; + if (++qtd->isoc_frame_index == qtd->urb->packet_count) { + hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, 0); + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE); + } + else + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NO_HALT_STATUS); + goto handle_nyet_done; + } + + if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || + hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { + int frnum = dwc_otg_hcd_get_frame_number(hcd); + + // With the FIQ running we only ever see the failed NYET + if (dwc_full_frame_num(frnum) != + dwc_full_frame_num(hc->qh->sched_frame) || + fiq_fsm_enable) { + /* + * No longer in the same full speed frame. + * Treat this as a transaction error. + */ +#if 0 + /** @todo Fix system performance so this can + * be treated as an error. Right now complete + * splits cannot be scheduled precisely enough + * due to other system activity, so this error + * occurs regularly in Slave mode. + */ + qtd->error_count++; +#endif + qtd->complete_split = 0; + halt_channel(hcd, hc, qtd, + DWC_OTG_HC_XFER_XACT_ERR); + /** @todo add support for isoc release */ + goto handle_nyet_done; + } + } + + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NYET); + goto handle_nyet_done; + } + + hc->qh->ping_state = 1; + qtd->error_count = 0; + + update_urb_state_xfer_intr(hc, hc_regs, qtd->urb, qtd, + DWC_OTG_HC_XFER_NYET); + dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd); + + /* + * Halt the channel and re-start the transfer so the PING + * protocol will start. + */ + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NYET); + +handle_nyet_done: + disable_hc_int(hc_regs, nyet); + return 1; +} + +/** + * Handles a host channel babble interrupt. This handler may be called in + * either DMA mode or Slave mode. + */ +static int32_t handle_hc_babble_intr(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_qtd_t * qtd) +{ + DWC_DEBUGPL(DBG_HCDI, "--Host Channel %d Interrupt: " + "Babble Error--\n", hc->hc_num); + + if (hcd->core_if->dma_desc_enable) { + dwc_otg_hcd_complete_xfer_ddma(hcd, hc, hc_regs, + DWC_OTG_HC_XFER_BABBLE_ERR); + goto handle_babble_done; + } + + if (hc->ep_type != DWC_OTG_EP_TYPE_ISOC) { + hcd->fops->complete(hcd, qtd->urb->priv, + qtd->urb, -DWC_E_OVERFLOW); + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_BABBLE_ERR); + } else { + dwc_otg_halt_status_e halt_status; + halt_status = update_isoc_urb_state(hcd, hc, hc_regs, qtd, + DWC_OTG_HC_XFER_BABBLE_ERR); + halt_channel(hcd, hc, qtd, halt_status); + } + +handle_babble_done: + disable_hc_int(hc_regs, bblerr); + return 1; +} + +/** + * Handles a host channel AHB error interrupt. This handler is only called in + * DMA mode. + */ +static int32_t handle_hc_ahberr_intr(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_qtd_t * qtd) +{ + hcchar_data_t hcchar; + hcsplt_data_t hcsplt; + hctsiz_data_t hctsiz; + uint32_t hcdma; + char *pipetype, *speed; + + dwc_otg_hcd_urb_t *urb = qtd->urb; + + DWC_DEBUGPL(DBG_HCDI, "--Host Channel %d Interrupt: " + "AHB Error--\n", hc->hc_num); + + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + hcsplt.d32 = DWC_READ_REG32(&hc_regs->hcsplt); + hctsiz.d32 = DWC_READ_REG32(&hc_regs->hctsiz); + hcdma = DWC_READ_REG32(&hc_regs->hcdma); + + DWC_ERROR("AHB ERROR, Channel %d\n", hc->hc_num); + DWC_ERROR(" hcchar 0x%08x, hcsplt 0x%08x\n", hcchar.d32, hcsplt.d32); + DWC_ERROR(" hctsiz 0x%08x, hcdma 0x%08x\n", hctsiz.d32, hcdma); + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD URB Enqueue\n"); + DWC_ERROR(" Device address: %d\n", + dwc_otg_hcd_get_dev_addr(&urb->pipe_info)); + DWC_ERROR(" Endpoint: %d, %s\n", + dwc_otg_hcd_get_ep_num(&urb->pipe_info), + (dwc_otg_hcd_is_pipe_in(&urb->pipe_info) ? "IN" : "OUT")); + + switch (dwc_otg_hcd_get_pipe_type(&urb->pipe_info)) { + case UE_CONTROL: + pipetype = "CONTROL"; + break; + case UE_BULK: + pipetype = "BULK"; + break; + case UE_INTERRUPT: + pipetype = "INTERRUPT"; + break; + case UE_ISOCHRONOUS: + pipetype = "ISOCHRONOUS"; + break; + default: + pipetype = "UNKNOWN"; + break; + } + + DWC_ERROR(" Endpoint type: %s\n", pipetype); + + switch (hc->speed) { + case DWC_OTG_EP_SPEED_HIGH: + speed = "HIGH"; + break; + case DWC_OTG_EP_SPEED_FULL: + speed = "FULL"; + break; + case DWC_OTG_EP_SPEED_LOW: + speed = "LOW"; + break; + default: + speed = "UNKNOWN"; + break; + }; + + DWC_ERROR(" Speed: %s\n", speed); + + DWC_ERROR(" Max packet size: %d\n", + dwc_otg_hcd_get_mps(&urb->pipe_info)); + DWC_ERROR(" Data buffer length: %d\n", urb->length); + DWC_ERROR(" Transfer buffer: %p, Transfer DMA: %p\n", + urb->buf, (void *)urb->dma); + DWC_ERROR(" Setup buffer: %p, Setup DMA: %p\n", + urb->setup_packet, (void *)urb->setup_dma); + DWC_ERROR(" Interval: %d\n", urb->interval); + + /* Core haltes the channel for Descriptor DMA mode */ + if (hcd->core_if->dma_desc_enable) { + dwc_otg_hcd_complete_xfer_ddma(hcd, hc, hc_regs, + DWC_OTG_HC_XFER_AHB_ERR); + goto handle_ahberr_done; + } + + hcd->fops->complete(hcd, urb->priv, urb, -DWC_E_IO); + + /* + * Force a channel halt. Don't call halt_channel because that won't + * write to the HCCHARn register in DMA mode to force the halt. + */ + dwc_otg_hc_halt(hcd->core_if, hc, DWC_OTG_HC_XFER_AHB_ERR); +handle_ahberr_done: + disable_hc_int(hc_regs, ahberr); + return 1; +} + +/** + * Handles a host channel transaction error interrupt. This handler may be + * called in either DMA mode or Slave mode. + */ +static int32_t handle_hc_xacterr_intr(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_qtd_t * qtd) +{ + DWC_DEBUGPL(DBG_HCDI, "--Host Channel %d Interrupt: " + "Transaction Error--\n", hc->hc_num); + + if (hcd->core_if->dma_desc_enable) { + dwc_otg_hcd_complete_xfer_ddma(hcd, hc, hc_regs, + DWC_OTG_HC_XFER_XACT_ERR); + goto handle_xacterr_done; + } + + switch (dwc_otg_hcd_get_pipe_type(&qtd->urb->pipe_info)) { + case UE_CONTROL: + case UE_BULK: + qtd->error_count++; + if (!hc->qh->ping_state) { + + update_urb_state_xfer_intr(hc, hc_regs, + qtd->urb, qtd, + DWC_OTG_HC_XFER_XACT_ERR); + dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd); + if (!hc->ep_is_in && hc->speed == DWC_OTG_EP_SPEED_HIGH) { + hc->qh->ping_state = 1; + } + } + + /* + * Halt the channel so the transfer can be re-started from + * the appropriate point or the PING protocol will start. + */ + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_XACT_ERR); + break; + case UE_INTERRUPT: + qtd->error_count++; + if (hc->do_split && hc->complete_split) { + qtd->complete_split = 0; + } + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_XACT_ERR); + break; + case UE_ISOCHRONOUS: + { + dwc_otg_halt_status_e halt_status; + halt_status = + update_isoc_urb_state(hcd, hc, hc_regs, qtd, + DWC_OTG_HC_XFER_XACT_ERR); + + halt_channel(hcd, hc, qtd, halt_status); + } + break; + } +handle_xacterr_done: + disable_hc_int(hc_regs, xacterr); + + return 1; +} + +/** + * Handles a host channel frame overrun interrupt. This handler may be called + * in either DMA mode or Slave mode. + */ +static int32_t handle_hc_frmovrun_intr(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_qtd_t * qtd) +{ + DWC_DEBUGPL(DBG_HCDI, "--Host Channel %d Interrupt: " + "Frame Overrun--\n", hc->hc_num); + + switch (dwc_otg_hcd_get_pipe_type(&qtd->urb->pipe_info)) { + case UE_CONTROL: + case UE_BULK: + break; + case UE_INTERRUPT: + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_FRAME_OVERRUN); + break; + case UE_ISOCHRONOUS: + { + dwc_otg_halt_status_e halt_status; + halt_status = + update_isoc_urb_state(hcd, hc, hc_regs, qtd, + DWC_OTG_HC_XFER_FRAME_OVERRUN); + + halt_channel(hcd, hc, qtd, halt_status); + } + break; + } + + disable_hc_int(hc_regs, frmovrun); + + return 1; +} + +/** + * Handles a host channel data toggle error interrupt. This handler may be + * called in either DMA mode or Slave mode. + */ +static int32_t handle_hc_datatglerr_intr(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_qtd_t * qtd) +{ + DWC_DEBUGPL(DBG_HCDI, "--Host Channel %d Interrupt: " + "Data Toggle Error on %s transfer--\n", + hc->hc_num, (hc->ep_is_in ? "IN" : "OUT")); + + /* Data toggles on split transactions cause the hc to halt. + * restart transfer */ + if(hc->qh->do_split) + { + qtd->error_count++; + dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd); + update_urb_state_xfer_intr(hc, hc_regs, + qtd->urb, qtd, DWC_OTG_HC_XFER_XACT_ERR); + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_XACT_ERR); + } else if (hc->ep_is_in) { + /* An unmasked data toggle error on a non-split DMA transaction is + * for the sole purpose of resetting error counts. Disable other + * interrupts unmasked for the same reason. + */ + if(hcd->core_if->dma_enable) { + disable_hc_int(hc_regs, ack); + disable_hc_int(hc_regs, nak); + } + qtd->error_count = 0; + } + + disable_hc_int(hc_regs, datatglerr); + + return 1; +} + +#ifdef DEBUG +/** + * This function is for debug only. It checks that a valid halt status is set + * and that HCCHARn.chdis is clear. If there's a problem, corrective action is + * taken and a warning is issued. + * @return 1 if halt status is ok, 0 otherwise. + */ +static inline int halt_status_ok(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_qtd_t * qtd) +{ + hcchar_data_t hcchar; + hctsiz_data_t hctsiz; + hcint_data_t hcint; + hcintmsk_data_t hcintmsk; + hcsplt_data_t hcsplt; + + if (hc->halt_status == DWC_OTG_HC_XFER_NO_HALT_STATUS) { + /* + * This code is here only as a check. This condition should + * never happen. Ignore the halt if it does occur. + */ + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + hctsiz.d32 = DWC_READ_REG32(&hc_regs->hctsiz); + hcint.d32 = DWC_READ_REG32(&hc_regs->hcint); + hcintmsk.d32 = DWC_READ_REG32(&hc_regs->hcintmsk); + hcsplt.d32 = DWC_READ_REG32(&hc_regs->hcsplt); + DWC_WARN + ("%s: hc->halt_status == DWC_OTG_HC_XFER_NO_HALT_STATUS, " + "channel %d, hcchar 0x%08x, hctsiz 0x%08x, " + "hcint 0x%08x, hcintmsk 0x%08x, " + "hcsplt 0x%08x, qtd->complete_split %d\n", __func__, + hc->hc_num, hcchar.d32, hctsiz.d32, hcint.d32, + hcintmsk.d32, hcsplt.d32, qtd->complete_split); + + DWC_WARN("%s: no halt status, channel %d, ignoring interrupt\n", + __func__, hc->hc_num); + DWC_WARN("\n"); + clear_hc_int(hc_regs, chhltd); + return 0; + } + + /* + * This code is here only as a check. hcchar.chdis should + * never be set when the halt interrupt occurs. Halt the + * channel again if it does occur. + */ + hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); + if (hcchar.b.chdis) { + DWC_WARN("%s: hcchar.chdis set unexpectedly, " + "hcchar 0x%08x, trying to halt again\n", + __func__, hcchar.d32); + clear_hc_int(hc_regs, chhltd); + hc->halt_pending = 0; + halt_channel(hcd, hc, qtd, hc->halt_status); + return 0; + } + + return 1; +} +#endif + +/** + * Handles a host Channel Halted interrupt in DMA mode. This handler + * determines the reason the channel halted and proceeds accordingly. + */ +static void handle_hc_chhltd_intr_dma(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_qtd_t * qtd) +{ + int out_nak_enh = 0; + hcint_data_t hcint; + hcintmsk_data_t hcintmsk; + /* For core with OUT NAK enhancement, the flow for high- + * speed CONTROL/BULK OUT is handled a little differently. + */ + if (hcd->core_if->snpsid >= OTG_CORE_REV_2_71a) { + if (hc->speed == DWC_OTG_EP_SPEED_HIGH && !hc->ep_is_in && + (hc->ep_type == DWC_OTG_EP_TYPE_CONTROL || + hc->ep_type == DWC_OTG_EP_TYPE_BULK)) { + out_nak_enh = 1; + } + } + + if (hc->halt_status == DWC_OTG_HC_XFER_URB_DEQUEUE || + (hc->halt_status == DWC_OTG_HC_XFER_AHB_ERR + && !hcd->core_if->dma_desc_enable)) { + /* + * Just release the channel. A dequeue can happen on a + * transfer timeout. In the case of an AHB Error, the channel + * was forced to halt because there's no way to gracefully + * recover. + */ + if (hcd->core_if->dma_desc_enable) + dwc_otg_hcd_complete_xfer_ddma(hcd, hc, hc_regs, + hc->halt_status); + else + release_channel(hcd, hc, qtd, hc->halt_status); + return; + } + + /* Read the HCINTn register to determine the cause for the halt. */ + + hcint.d32 = DWC_READ_REG32(&hc_regs->hcint); + hcintmsk.d32 = DWC_READ_REG32(&hc_regs->hcintmsk); + + if (hcint.b.xfercomp) { + /** @todo This is here because of a possible hardware bug. Spec + * says that on SPLIT-ISOC OUT transfers in DMA mode that a HALT + * interrupt w/ACK bit set should occur, but I only see the + * XFERCOMP bit, even with it masked out. This is a workaround + * for that behavior. Should fix this when hardware is fixed. + */ + if (hc->ep_type == DWC_OTG_EP_TYPE_ISOC && !hc->ep_is_in) { + handle_hc_ack_intr(hcd, hc, hc_regs, qtd); + } + handle_hc_xfercomp_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.stall) { + handle_hc_stall_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.xacterr && !hcd->core_if->dma_desc_enable) { + if (out_nak_enh) { + if (hcint.b.nyet || hcint.b.nak || hcint.b.ack) { + DWC_DEBUGPL(DBG_HCD, "XactErr with NYET/NAK/ACK\n"); + qtd->error_count = 0; + } else { + DWC_DEBUGPL(DBG_HCD, "XactErr without NYET/NAK/ACK\n"); + } + } + + /* + * Must handle xacterr before nak or ack. Could get a xacterr + * at the same time as either of these on a BULK/CONTROL OUT + * that started with a PING. The xacterr takes precedence. + */ + handle_hc_xacterr_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.xcs_xact && hcd->core_if->dma_desc_enable) { + handle_hc_xacterr_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.ahberr && hcd->core_if->dma_desc_enable) { + handle_hc_ahberr_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.bblerr) { + handle_hc_babble_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.frmovrun) { + handle_hc_frmovrun_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.datatglerr) { + handle_hc_datatglerr_intr(hcd, hc, hc_regs, qtd); + } else if (!out_nak_enh) { + if (hcint.b.nyet) { + /* + * Must handle nyet before nak or ack. Could get a nyet at the + * same time as either of those on a BULK/CONTROL OUT that + * started with a PING. The nyet takes precedence. + */ + handle_hc_nyet_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.nak && !hcintmsk.b.nak) { + /* + * If nak is not masked, it's because a non-split IN transfer + * is in an error state. In that case, the nak is handled by + * the nak interrupt handler, not here. Handle nak here for + * BULK/CONTROL OUT transfers, which halt on a NAK to allow + * rewinding the buffer pointer. + */ + handle_hc_nak_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.ack && !hcintmsk.b.ack) { + /* + * If ack is not masked, it's because a non-split IN transfer + * is in an error state. In that case, the ack is handled by + * the ack interrupt handler, not here. Handle ack here for + * split transfers. Start splits halt on ACK. + */ + handle_hc_ack_intr(hcd, hc, hc_regs, qtd); + } else { + if (hc->ep_type == DWC_OTG_EP_TYPE_INTR || + hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { + /* + * A periodic transfer halted with no other channel + * interrupts set. Assume it was halted by the core + * because it could not be completed in its scheduled + * (micro)frame. + */ +#ifdef DEBUG + DWC_PRINTF + ("%s: Halt channel %d (assume incomplete periodic transfer)\n", + __func__, hc->hc_num); +#endif + halt_channel(hcd, hc, qtd, + DWC_OTG_HC_XFER_PERIODIC_INCOMPLETE); + } else { + DWC_ERROR + ("%s: Channel %d, DMA Mode -- ChHltd set, but reason " + "for halting is unknown, hcint 0x%08x, intsts 0x%08x\n", + __func__, hc->hc_num, hcint.d32, + DWC_READ_REG32(&hcd-> + core_if->core_global_regs-> + gintsts)); + /* Failthrough: use 3-strikes rule */ + qtd->error_count++; + dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd); + update_urb_state_xfer_intr(hc, hc_regs, + qtd->urb, qtd, DWC_OTG_HC_XFER_XACT_ERR); + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_XACT_ERR); + } + + } + } else { + DWC_PRINTF("NYET/NAK/ACK/other in non-error case, 0x%08x\n", + hcint.d32); + /* Failthrough: use 3-strikes rule */ + qtd->error_count++; + dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd); + update_urb_state_xfer_intr(hc, hc_regs, + qtd->urb, qtd, DWC_OTG_HC_XFER_XACT_ERR); + halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_XACT_ERR); + } +} + +/** + * Handles a host channel Channel Halted interrupt. + * + * In slave mode, this handler is called only when the driver specifically + * requests a halt. This occurs during handling other host channel interrupts + * (e.g. nak, xacterr, stall, nyet, etc.). + * + * In DMA mode, this is the interrupt that occurs when the core has finished + * processing a transfer on a channel. Other host channel interrupts (except + * ahberr) are disabled in DMA mode. + */ +static int32_t handle_hc_chhltd_intr(dwc_otg_hcd_t * hcd, + dwc_hc_t * hc, + dwc_otg_hc_regs_t * hc_regs, + dwc_otg_qtd_t * qtd) +{ + DWC_DEBUGPL(DBG_HCDI, "--Host Channel %d Interrupt: " + "Channel Halted--\n", hc->hc_num); + + if (hcd->core_if->dma_enable) { + handle_hc_chhltd_intr_dma(hcd, hc, hc_regs, qtd); + } else { +#ifdef DEBUG + if (!halt_status_ok(hcd, hc, hc_regs, qtd)) { + return 1; + } +#endif + release_channel(hcd, hc, qtd, hc->halt_status); + } + + return 1; +} + + +/** + * dwc_otg_fiq_unmangle_isoc() - Update the iso_frame_desc structure on + * FIQ transfer completion + * @hcd: Pointer to dwc_otg_hcd struct + * @num: Host channel number + * + * 1. Un-mangle the status as recorded in each iso_frame_desc status + * 2. Copy it from the dwc_otg_urb into the real URB + */ +void dwc_otg_fiq_unmangle_isoc(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh, dwc_otg_qtd_t *qtd, uint32_t num) +{ + struct dwc_otg_hcd_urb *dwc_urb = qtd->urb; + int nr_frames = dwc_urb->packet_count; + int i; + hcint_data_t frame_hcint; + + for (i = 0; i < nr_frames; i++) { + frame_hcint.d32 = dwc_urb->iso_descs[i].status; + if (frame_hcint.b.xfercomp) { + dwc_urb->iso_descs[i].status = 0; + dwc_urb->actual_length += dwc_urb->iso_descs[i].actual_length; + } else if (frame_hcint.b.frmovrun) { + if (qh->ep_is_in) + dwc_urb->iso_descs[i].status = -DWC_E_NO_STREAM_RES; + else + dwc_urb->iso_descs[i].status = -DWC_E_COMMUNICATION; + dwc_urb->error_count++; + dwc_urb->iso_descs[i].actual_length = 0; + } else if (frame_hcint.b.xacterr) { + dwc_urb->iso_descs[i].status = -DWC_E_PROTOCOL; + dwc_urb->error_count++; + dwc_urb->iso_descs[i].actual_length = 0; + } else if (frame_hcint.b.bblerr) { + dwc_urb->iso_descs[i].status = -DWC_E_OVERFLOW; + dwc_urb->error_count++; + dwc_urb->iso_descs[i].actual_length = 0; + } else { + /* Something went wrong */ + dwc_urb->iso_descs[i].status = -1; + dwc_urb->iso_descs[i].actual_length = 0; + dwc_urb->error_count++; + } + } + qh->sched_frame = dwc_frame_num_inc(qh->sched_frame, qh->interval * (nr_frames - 1)); + + //printk_ratelimited(KERN_INFO "%s: HS isochronous of %d/%d frames with %d errors complete\n", + // __FUNCTION__, i, dwc_urb->packet_count, dwc_urb->error_count); +} + +/** + * dwc_otg_fiq_unsetup_per_dma() - Remove data from bounce buffers for split transactions + * @hcd: Pointer to dwc_otg_hcd struct + * @num: Host channel number + * + * Copies data from the FIQ bounce buffers into the URB's transfer buffer. Does not modify URB state. + * Returns total length of data or -1 if the buffers were not used. + * + */ +int dwc_otg_fiq_unsetup_per_dma(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh, dwc_otg_qtd_t *qtd, uint32_t num) +{ + dwc_hc_t *hc = qh->channel; + struct fiq_dma_blob *blob = hcd->fiq_dmab; + struct fiq_channel_state *st = &hcd->fiq_state->channel[num]; + uint8_t *ptr = NULL; + int index = 0, len = 0; + int i = 0; + if (hc->ep_is_in) { + /* Copy data out of the DMA bounce buffers to the URB's buffer. + * The align_buf is ignored as this is ignored on FSM enqueue. */ + ptr = qtd->urb->buf; + if (qh->ep_type == UE_ISOCHRONOUS) { + /* Isoc IN transactions - grab the offset of the iso_frame_desc into the URB transfer buffer */ + index = qtd->isoc_frame_index; + ptr += qtd->urb->iso_descs[index].offset; + } else { + /* Need to increment by actual_length for interrupt IN */ + ptr += qtd->urb->actual_length; + } + + for (i = 0; i < st->dma_info.index; i++) { + len += st->dma_info.slot_len[i]; + dwc_memcpy(ptr, &blob->channel[num].index[i].buf[0], st->dma_info.slot_len[i]); + ptr += st->dma_info.slot_len[i]; + } + return len; + } else { + /* OUT endpoints - nothing to do. */ + return -1; + } + +} +/** + * dwc_otg_hcd_handle_hc_fsm() - handle an unmasked channel interrupt + * from a channel handled in the FIQ + * @hcd: Pointer to dwc_otg_hcd struct + * @num: Host channel number + * + * If a host channel interrupt was received by the IRQ and this was a channel + * used by the FIQ, the execution flow for transfer completion is substantially + * different from the normal (messy) path. This function and its friends handles + * channel cleanup and transaction completion from a FIQ transaction. + */ +void dwc_otg_hcd_handle_hc_fsm(dwc_otg_hcd_t *hcd, uint32_t num) +{ + struct fiq_channel_state *st = &hcd->fiq_state->channel[num]; + dwc_hc_t *hc = hcd->hc_ptr_array[num]; + dwc_otg_qtd_t *qtd = DWC_CIRCLEQ_FIRST(&hc->qh->qtd_list); + dwc_otg_qh_t *qh = hc->qh; + dwc_otg_hc_regs_t *hc_regs = hcd->core_if->host_if->hc_regs[num]; + hcint_data_t hcint = hcd->fiq_state->channel[num].hcint_copy; + int hostchannels = 0; + fiq_print(FIQDBG_INT, hcd->fiq_state, "OUT %01d %01d ", num , st->fsm); + + hostchannels = hcd->available_host_channels; + switch (st->fsm) { + case FIQ_TEST: + break; + + case FIQ_DEQUEUE_ISSUED: + /* hc_halt was called. QTD no longer exists. */ + /* TODO: for a nonperiodic split transaction, need to issue a + * CLEAR_TT_BUFFER hub command if we were in the start-split phase. + */ + release_channel(hcd, hc, NULL, hc->halt_status); + break; + + case FIQ_NP_SPLIT_DONE: + /* Nonperiodic transaction complete. */ + if (!hc->ep_is_in) { + qtd->ssplit_out_xfer_count = hc->xfer_len; + } + if (hcint.b.xfercomp) { + handle_hc_xfercomp_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.nak) { + handle_hc_nak_intr(hcd, hc, hc_regs, qtd); + } + break; + + case FIQ_NP_SPLIT_HS_ABORTED: + /* A HS abort is a 3-strikes on the HS bus at any point in the transaction. + * Normally a CLEAR_TT_BUFFER hub command would be required: we can't do that + * because there's no guarantee which order a non-periodic split happened in. + * We could end up clearing a perfectly good transaction out of the buffer. + */ + if (hcint.b.xacterr) { + qtd->error_count += st->nr_errors; + handle_hc_xacterr_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.ahberr) { + handle_hc_ahberr_intr(hcd, hc, hc_regs, qtd); + } else { + local_fiq_disable(); + BUG(); + } + break; + + case FIQ_NP_SPLIT_LS_ABORTED: + /* A few cases can cause this - either an unknown state on a SSPLIT or + * STALL/data toggle error response on a CSPLIT */ + if (hcint.b.stall) { + handle_hc_stall_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.datatglerr) { + handle_hc_datatglerr_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.bblerr) { + handle_hc_babble_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.ahberr) { + handle_hc_ahberr_intr(hcd, hc, hc_regs, qtd); + } else { + local_fiq_disable(); + BUG(); + } + break; + + case FIQ_PER_SPLIT_DONE: + /* Isoc IN or Interrupt IN/OUT */ + + /* Flow control here is different from the normal execution by the driver. + * We need to completely ignore most of the driver's method of handling + * split transactions and do it ourselves. + */ + if (hc->ep_type == UE_INTERRUPT) { + if (hcint.b.nak) { + handle_hc_nak_intr(hcd, hc, hc_regs, qtd); + } else if (hc->ep_is_in) { + int len; + len = dwc_otg_fiq_unsetup_per_dma(hcd, hc->qh, qtd, num); + //printk(KERN_NOTICE "FIQ Transaction: hc=%d len=%d urb_len = %d\n", num, len, qtd->urb->length); + qtd->urb->actual_length += len; + if (qtd->urb->actual_length >= qtd->urb->length) { + qtd->urb->status = 0; + hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, qtd->urb->status); + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE); + } else { + /* Interrupt transfer not complete yet - is it a short read? */ + if (len < hc->max_packet) { + /* Interrupt transaction complete */ + qtd->urb->status = 0; + hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, qtd->urb->status); + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE); + } else { + /* Further transactions required */ + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_COMPLETE); + } + } + } else { + /* Interrupt OUT complete. */ + dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd); + qtd->urb->actual_length += hc->xfer_len; + if (qtd->urb->actual_length >= qtd->urb->length) { + qtd->urb->status = 0; + hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, qtd->urb->status); + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE); + } else { + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_COMPLETE); + } + } + } else { + /* ISOC IN complete. */ + struct dwc_otg_hcd_iso_packet_desc *frame_desc = &qtd->urb->iso_descs[qtd->isoc_frame_index]; + int len = 0; + /* Record errors, update qtd. */ + if (st->nr_errors) { + frame_desc->actual_length = 0; + frame_desc->status = -DWC_E_PROTOCOL; + } else { + frame_desc->status = 0; + /* Unswizzle dma */ + len = dwc_otg_fiq_unsetup_per_dma(hcd, qh, qtd, num); + frame_desc->actual_length = len; + } + qtd->isoc_frame_index++; + if (qtd->isoc_frame_index == qtd->urb->packet_count) { + hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, 0); + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE); + } else { + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_COMPLETE); + } + } + break; + + case FIQ_PER_ISO_OUT_DONE: { + struct dwc_otg_hcd_iso_packet_desc *frame_desc = &qtd->urb->iso_descs[qtd->isoc_frame_index]; + /* Record errors, update qtd. */ + if (st->nr_errors) { + frame_desc->actual_length = 0; + frame_desc->status = -DWC_E_PROTOCOL; + } else { + frame_desc->status = 0; + frame_desc->actual_length = frame_desc->length; + } + qtd->isoc_frame_index++; + qtd->isoc_split_offset = 0; + if (qtd->isoc_frame_index == qtd->urb->packet_count) { + hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, 0); + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE); + } else { + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_COMPLETE); + } + } + break; + + case FIQ_PER_SPLIT_NYET_ABORTED: + /* Doh. lost the data. */ + printk_ratelimited(KERN_INFO "Transfer to device %d endpoint 0x%x frame %d failed " + "- FIQ reported NYET. Data may have been lost.\n", + hc->dev_addr, hc->ep_num, dwc_otg_hcd_get_frame_number(hcd) >> 3); + if (hc->ep_type == UE_ISOCHRONOUS) { + struct dwc_otg_hcd_iso_packet_desc *frame_desc = &qtd->urb->iso_descs[qtd->isoc_frame_index]; + /* Record errors, update qtd. */ + frame_desc->actual_length = 0; + frame_desc->status = -DWC_E_PROTOCOL; + qtd->isoc_frame_index++; + qtd->isoc_split_offset = 0; + if (qtd->isoc_frame_index == qtd->urb->packet_count) { + hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, 0); + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE); + } else { + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_COMPLETE); + } + } else { + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NO_HALT_STATUS); + } + break; + + case FIQ_HS_ISOC_DONE: + /* The FIQ has performed a whole pile of isochronous transactions. + * The status is recorded as the interrupt state should the transaction + * fail. + */ + dwc_otg_fiq_unmangle_isoc(hcd, qh, qtd, num); + hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, 0); + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE); + break; + + case FIQ_PER_SPLIT_LS_ABORTED: + if (hcint.b.xacterr) { + /* Hub has responded with an ERR packet. Device + * has been unplugged or the port has been disabled. + * TODO: need to issue a reset to the hub port. */ + qtd->error_count += 3; + handle_hc_xacterr_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.stall) { + handle_hc_stall_intr(hcd, hc, hc_regs, qtd); + } else if (hcint.b.bblerr) { + handle_hc_babble_intr(hcd, hc, hc_regs, qtd); + } else { + printk_ratelimited(KERN_INFO "Transfer to device %d endpoint 0x%x failed " + "- FIQ reported FSM=%d. Data may have been lost.\n", + st->fsm, hc->dev_addr, hc->ep_num); + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NO_HALT_STATUS); + } + break; + + case FIQ_PER_SPLIT_HS_ABORTED: + /* Either the SSPLIT phase suffered transaction errors or something + * unexpected happened. + */ + qtd->error_count += 3; + handle_hc_xacterr_intr(hcd, hc, hc_regs, qtd); + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NO_HALT_STATUS); + break; + + case FIQ_PER_SPLIT_TIMEOUT: + /* Couldn't complete in the nominated frame */ + printk(KERN_INFO "Transfer to device %d endpoint 0x%x frame %d failed " + "- FIQ timed out. Data may have been lost.\n", + hc->dev_addr, hc->ep_num, dwc_otg_hcd_get_frame_number(hcd) >> 3); + if (hc->ep_type == UE_ISOCHRONOUS) { + struct dwc_otg_hcd_iso_packet_desc *frame_desc = &qtd->urb->iso_descs[qtd->isoc_frame_index]; + /* Record errors, update qtd. */ + frame_desc->actual_length = 0; + if (hc->ep_is_in) { + frame_desc->status = -DWC_E_NO_STREAM_RES; + } else { + frame_desc->status = -DWC_E_COMMUNICATION; + } + qtd->isoc_frame_index++; + if (qtd->isoc_frame_index == qtd->urb->packet_count) { + hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, 0); + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE); + } else { + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_COMPLETE); + } + } else { + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NO_HALT_STATUS); + } + break; + + default: + DWC_WARN("Unexpected state received on hc=%d fsm=%d on transfer to device %d ep 0x%x", + hc->hc_num, st->fsm, hc->dev_addr, hc->ep_num); + qtd->error_count++; + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NO_HALT_STATUS); + } + return; +} + +/** Handles interrupt for a specific Host Channel */ +int32_t dwc_otg_hcd_handle_hc_n_intr(dwc_otg_hcd_t * dwc_otg_hcd, uint32_t num) +{ + int retval = 0; + hcint_data_t hcint; + hcintmsk_data_t hcintmsk; + dwc_hc_t *hc; + dwc_otg_hc_regs_t *hc_regs; + dwc_otg_qtd_t *qtd; + + DWC_DEBUGPL(DBG_HCDV, "--Host Channel Interrupt--, Channel %d\n", num); + + hc = dwc_otg_hcd->hc_ptr_array[num]; + hc_regs = dwc_otg_hcd->core_if->host_if->hc_regs[num]; + if(hc->halt_status == DWC_OTG_HC_XFER_URB_DEQUEUE) { + /* We are responding to a channel disable. Driver + * state is cleared - our qtd has gone away. + */ + release_channel(dwc_otg_hcd, hc, NULL, hc->halt_status); + return 1; + } + qtd = DWC_CIRCLEQ_FIRST(&hc->qh->qtd_list); + + /* + * FSM mode: Check to see if this is a HC interrupt from a channel handled by the FIQ. + * Execution path is fundamentally different for the channels after a FIQ has completed + * a split transaction. + */ + if (fiq_fsm_enable) { + switch (dwc_otg_hcd->fiq_state->channel[num].fsm) { + case FIQ_PASSTHROUGH: + break; + case FIQ_PASSTHROUGH_ERRORSTATE: + /* Hook into the error count */ + fiq_print(FIQDBG_ERR, dwc_otg_hcd->fiq_state, "HCDERR%02d", num); + if (!dwc_otg_hcd->fiq_state->channel[num].nr_errors) { + qtd->error_count = 0; + fiq_print(FIQDBG_ERR, dwc_otg_hcd->fiq_state, "RESET "); + } + break; + default: + dwc_otg_hcd_handle_hc_fsm(dwc_otg_hcd, num); + return 1; + } + } + + hcint.d32 = DWC_READ_REG32(&hc_regs->hcint); + hcintmsk.d32 = DWC_READ_REG32(&hc_regs->hcintmsk); + hcint.d32 = hcint.d32 & hcintmsk.d32; + if (!dwc_otg_hcd->core_if->dma_enable) { + if (hcint.b.chhltd && hcint.d32 != 0x2) { + hcint.b.chhltd = 0; + } + } + + if (hcint.b.xfercomp) { + retval |= + handle_hc_xfercomp_intr(dwc_otg_hcd, hc, hc_regs, qtd); + /* + * If NYET occurred at same time as Xfer Complete, the NYET is + * handled by the Xfer Complete interrupt handler. Don't want + * to call the NYET interrupt handler in this case. + */ + hcint.b.nyet = 0; + } + if (hcint.b.chhltd) { + retval |= handle_hc_chhltd_intr(dwc_otg_hcd, hc, hc_regs, qtd); + } + if (hcint.b.ahberr) { + retval |= handle_hc_ahberr_intr(dwc_otg_hcd, hc, hc_regs, qtd); + } + if (hcint.b.stall) { + retval |= handle_hc_stall_intr(dwc_otg_hcd, hc, hc_regs, qtd); + } + if (hcint.b.nak) { + retval |= handle_hc_nak_intr(dwc_otg_hcd, hc, hc_regs, qtd); + } + if (hcint.b.ack) { + if(!hcint.b.chhltd) + retval |= handle_hc_ack_intr(dwc_otg_hcd, hc, hc_regs, qtd); + } + if (hcint.b.nyet) { + retval |= handle_hc_nyet_intr(dwc_otg_hcd, hc, hc_regs, qtd); + } + if (hcint.b.xacterr) { + retval |= handle_hc_xacterr_intr(dwc_otg_hcd, hc, hc_regs, qtd); + } + if (hcint.b.bblerr) { + retval |= handle_hc_babble_intr(dwc_otg_hcd, hc, hc_regs, qtd); + } + if (hcint.b.frmovrun) { + retval |= + handle_hc_frmovrun_intr(dwc_otg_hcd, hc, hc_regs, qtd); + } + if (hcint.b.datatglerr) { + retval |= + handle_hc_datatglerr_intr(dwc_otg_hcd, hc, hc_regs, qtd); + } + + return retval; +} +#endif /* DWC_DEVICE_ONLY */ diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c new file mode 100644 index 0000000000000000000000000000000000000000..96ec6338bbcb8ebe69a233d21a4b9d244ff6fe95 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c @@ -0,0 +1,1007 @@ + +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd_linux.c $ + * $Revision: #20 $ + * $Date: 2011/10/26 $ + * $Change: 1872981 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ +#ifndef DWC_DEVICE_ONLY + +/** + * @file + * + * This file contains the implementation of the HCD. In Linux, the HCD + * implements the hc_driver API. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,35) +#include <../drivers/usb/core/hcd.h> +#else +#include +#endif +#include + +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30)) +#define USB_URB_EP_LINKING 1 +#else +#define USB_URB_EP_LINKING 0 +#endif + +#include "dwc_otg_hcd_if.h" +#include "dwc_otg_dbg.h" +#include "dwc_otg_driver.h" +#include "dwc_otg_hcd.h" + +extern unsigned char _dwc_otg_fiq_stub, _dwc_otg_fiq_stub_end; + +/** + * Gets the endpoint number from a _bEndpointAddress argument. The endpoint is + * qualified with its direction (possible 32 endpoints per device). + */ +#define dwc_ep_addr_to_endpoint(_bEndpointAddress_) ((_bEndpointAddress_ & USB_ENDPOINT_NUMBER_MASK) | \ + ((_bEndpointAddress_ & USB_DIR_IN) != 0) << 4) + +static const char dwc_otg_hcd_name[] = "dwc_otg_hcd"; + +extern bool fiq_enable; + +/** @name Linux HC Driver API Functions */ +/** @{ */ +/* manage i/o requests, device state */ +static int dwc_otg_urb_enqueue(struct usb_hcd *hcd, +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28) + struct usb_host_endpoint *ep, +#endif + struct urb *urb, gfp_t mem_flags); + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30) +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28) +static int dwc_otg_urb_dequeue(struct usb_hcd *hcd, struct urb *urb); +#endif +#else /* kernels at or post 2.6.30 */ +static int dwc_otg_urb_dequeue(struct usb_hcd *hcd, + struct urb *urb, int status); +#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30) */ + +static void endpoint_disable(struct usb_hcd *hcd, struct usb_host_endpoint *ep); +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30) +static void endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep); +#endif +static irqreturn_t dwc_otg_hcd_irq(struct usb_hcd *hcd); +extern int hcd_start(struct usb_hcd *hcd); +extern void hcd_stop(struct usb_hcd *hcd); +static int get_frame_number(struct usb_hcd *hcd); +extern int hub_status_data(struct usb_hcd *hcd, char *buf); +extern int hub_control(struct usb_hcd *hcd, + u16 typeReq, + u16 wValue, u16 wIndex, char *buf, u16 wLength); + +struct wrapper_priv_data { + dwc_otg_hcd_t *dwc_otg_hcd; +}; + +/** @} */ + +static struct hc_driver dwc_otg_hc_driver = { + + .description = dwc_otg_hcd_name, + .product_desc = "DWC OTG Controller", + .hcd_priv_size = sizeof(struct wrapper_priv_data), + + .irq = dwc_otg_hcd_irq, + + .flags = HCD_MEMORY | HCD_USB2, + + //.reset = + .start = hcd_start, + //.suspend = + //.resume = + .stop = hcd_stop, + + .urb_enqueue = dwc_otg_urb_enqueue, + .urb_dequeue = dwc_otg_urb_dequeue, + .endpoint_disable = endpoint_disable, +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30) + .endpoint_reset = endpoint_reset, +#endif + .get_frame_number = get_frame_number, + + .hub_status_data = hub_status_data, + .hub_control = hub_control, + //.bus_suspend = + //.bus_resume = +}; + +/** Gets the dwc_otg_hcd from a struct usb_hcd */ +static inline dwc_otg_hcd_t *hcd_to_dwc_otg_hcd(struct usb_hcd *hcd) +{ + struct wrapper_priv_data *p; + p = (struct wrapper_priv_data *)(hcd->hcd_priv); + return p->dwc_otg_hcd; +} + +/** Gets the struct usb_hcd that contains a dwc_otg_hcd_t. */ +static inline struct usb_hcd *dwc_otg_hcd_to_hcd(dwc_otg_hcd_t * dwc_otg_hcd) +{ + return dwc_otg_hcd_get_priv_data(dwc_otg_hcd); +} + +/** Gets the usb_host_endpoint associated with an URB. */ +inline struct usb_host_endpoint *dwc_urb_to_endpoint(struct urb *urb) +{ + struct usb_device *dev = urb->dev; + int ep_num = usb_pipeendpoint(urb->pipe); + + if (usb_pipein(urb->pipe)) + return dev->ep_in[ep_num]; + else + return dev->ep_out[ep_num]; +} + +static int _disconnect(dwc_otg_hcd_t * hcd) +{ + struct usb_hcd *usb_hcd = dwc_otg_hcd_to_hcd(hcd); + + usb_hcd->self.is_b_host = 0; + return 0; +} + +static int _start(dwc_otg_hcd_t * hcd) +{ + struct usb_hcd *usb_hcd = dwc_otg_hcd_to_hcd(hcd); + + usb_hcd->self.is_b_host = dwc_otg_hcd_is_b_host(hcd); + hcd_start(usb_hcd); + + return 0; +} + +static int _hub_info(dwc_otg_hcd_t * hcd, void *urb_handle, uint32_t * hub_addr, + uint32_t * port_addr) +{ + struct urb *urb = (struct urb *)urb_handle; + struct usb_bus *bus; +#if 1 //GRAYG - temporary + if (NULL == urb_handle) + DWC_ERROR("**** %s - NULL URB handle\n", __func__);//GRAYG + if (NULL == urb->dev) + DWC_ERROR("**** %s - URB has no device\n", __func__);//GRAYG + if (NULL == port_addr) + DWC_ERROR("**** %s - NULL port_address\n", __func__);//GRAYG +#endif + if (urb->dev->tt) { + if (NULL == urb->dev->tt->hub) { + DWC_ERROR("**** %s - (URB's transactor has no TT - giving no hub)\n", + __func__); //GRAYG + //*hub_addr = (u8)usb_pipedevice(urb->pipe); //GRAYG + *hub_addr = 0; //GRAYG + // we probably shouldn't have a transaction translator if + // there's no associated hub? + } else { + bus = hcd_to_bus(dwc_otg_hcd_to_hcd(hcd)); + if (urb->dev->tt->hub == bus->root_hub) + *hub_addr = 0; + else + *hub_addr = urb->dev->tt->hub->devnum; + } + *port_addr = urb->dev->tt->multi ? urb->dev->ttport : 1; + } else { + *hub_addr = 0; + *port_addr = urb->dev->ttport; + } + return 0; +} + +static int _speed(dwc_otg_hcd_t * hcd, void *urb_handle) +{ + struct urb *urb = (struct urb *)urb_handle; + return urb->dev->speed; +} + +static int _get_b_hnp_enable(dwc_otg_hcd_t * hcd) +{ + struct usb_hcd *usb_hcd = dwc_otg_hcd_to_hcd(hcd); + return usb_hcd->self.b_hnp_enable; +} + +static void allocate_bus_bandwidth(struct usb_hcd *hcd, uint32_t bw, + struct urb *urb) +{ + hcd_to_bus(hcd)->bandwidth_allocated += bw / urb->interval; + if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { + hcd_to_bus(hcd)->bandwidth_isoc_reqs++; + } else { + hcd_to_bus(hcd)->bandwidth_int_reqs++; + } +} + +static void free_bus_bandwidth(struct usb_hcd *hcd, uint32_t bw, + struct urb *urb) +{ + hcd_to_bus(hcd)->bandwidth_allocated -= bw / urb->interval; + if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { + hcd_to_bus(hcd)->bandwidth_isoc_reqs--; + } else { + hcd_to_bus(hcd)->bandwidth_int_reqs--; + } +} + +/** + * Sets the final status of an URB and returns it to the device driver. Any + * required cleanup of the URB is performed. The HCD lock should be held on + * entry. + */ +static int _complete(dwc_otg_hcd_t * hcd, void *urb_handle, + dwc_otg_hcd_urb_t * dwc_otg_urb, int32_t status) +{ + struct urb *urb = (struct urb *)urb_handle; + urb_tq_entry_t *new_entry; + int rc = 0; + if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) { + DWC_PRINTF("%s: urb %p, device %d, ep %d %s, status=%d\n", + __func__, urb, usb_pipedevice(urb->pipe), + usb_pipeendpoint(urb->pipe), + usb_pipein(urb->pipe) ? "IN" : "OUT", status); + if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { + int i; + for (i = 0; i < urb->number_of_packets; i++) { + DWC_PRINTF(" ISO Desc %d status: %d\n", + i, urb->iso_frame_desc[i].status); + } + } + } + new_entry = DWC_ALLOC_ATOMIC(sizeof(urb_tq_entry_t)); + urb->actual_length = dwc_otg_hcd_urb_get_actual_length(dwc_otg_urb); + /* Convert status value. */ + switch (status) { + case -DWC_E_PROTOCOL: + status = -EPROTO; + break; + case -DWC_E_IN_PROGRESS: + status = -EINPROGRESS; + break; + case -DWC_E_PIPE: + status = -EPIPE; + break; + case -DWC_E_IO: + status = -EIO; + break; + case -DWC_E_TIMEOUT: + status = -ETIMEDOUT; + break; + case -DWC_E_OVERFLOW: + status = -EOVERFLOW; + break; + case -DWC_E_SHUTDOWN: + status = -ESHUTDOWN; + break; + default: + if (status) { + DWC_PRINTF("Uknown urb status %d\n", status); + + } + } + + if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { + int i; + + urb->error_count = dwc_otg_hcd_urb_get_error_count(dwc_otg_urb); + urb->actual_length = 0; + for (i = 0; i < urb->number_of_packets; ++i) { + urb->iso_frame_desc[i].actual_length = + dwc_otg_hcd_urb_get_iso_desc_actual_length + (dwc_otg_urb, i); + urb->actual_length += urb->iso_frame_desc[i].actual_length; + urb->iso_frame_desc[i].status = + dwc_otg_hcd_urb_get_iso_desc_status(dwc_otg_urb, i); + } + } + + urb->status = status; + urb->hcpriv = NULL; + if (!status) { + if ((urb->transfer_flags & URB_SHORT_NOT_OK) && + (urb->actual_length < urb->transfer_buffer_length)) { + urb->status = -EREMOTEIO; + } + } + + if ((usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) || + (usb_pipetype(urb->pipe) == PIPE_INTERRUPT)) { + struct usb_host_endpoint *ep = dwc_urb_to_endpoint(urb); + if (ep) { + free_bus_bandwidth(dwc_otg_hcd_to_hcd(hcd), + dwc_otg_hcd_get_ep_bandwidth(hcd, + ep->hcpriv), + urb); + } + } + DWC_FREE(dwc_otg_urb); + if (!new_entry) { + DWC_ERROR("dwc_otg_hcd: complete: cannot allocate URB TQ entry\n"); + urb->status = -EPROTO; + /* don't schedule the tasklet - + * directly return the packet here with error. */ +#if USB_URB_EP_LINKING + usb_hcd_unlink_urb_from_ep(dwc_otg_hcd_to_hcd(hcd), urb); +#endif +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28) + usb_hcd_giveback_urb(dwc_otg_hcd_to_hcd(hcd), urb); +#else + usb_hcd_giveback_urb(dwc_otg_hcd_to_hcd(hcd), urb, urb->status); +#endif + } else { + new_entry->urb = urb; +#if USB_URB_EP_LINKING + rc = usb_hcd_check_unlink_urb(dwc_otg_hcd_to_hcd(hcd), urb, urb->status); + if(0 == rc) { + usb_hcd_unlink_urb_from_ep(dwc_otg_hcd_to_hcd(hcd), urb); + } +#endif + if(0 == rc) { + DWC_TAILQ_INSERT_TAIL(&hcd->completed_urb_list, new_entry, + urb_tq_entries); + DWC_TASK_HI_SCHEDULE(hcd->completion_tasklet); + } + } + return 0; +} + +static struct dwc_otg_hcd_function_ops hcd_fops = { + .start = _start, + .disconnect = _disconnect, + .hub_info = _hub_info, + .speed = _speed, + .complete = _complete, + .get_b_hnp_enable = _get_b_hnp_enable, +}; + +static struct fiq_handler fh = { + .name = "usb_fiq", +}; + +static void hcd_init_fiq(void *cookie) +{ + dwc_otg_device_t *otg_dev = cookie; + dwc_otg_hcd_t *dwc_otg_hcd = otg_dev->hcd; + struct pt_regs regs; + int irq; + + if (claim_fiq(&fh)) { + DWC_ERROR("Can't claim FIQ"); + BUG(); + } + DWC_WARN("FIQ on core %d at 0x%08x", + smp_processor_id(), + (fiq_fsm_enable ? (int)&dwc_otg_fiq_fsm : (int)&dwc_otg_fiq_nop)); + DWC_WARN("FIQ ASM at 0x%08x length %d", (int)&_dwc_otg_fiq_stub, (int)(&_dwc_otg_fiq_stub_end - &_dwc_otg_fiq_stub)); + set_fiq_handler((void *) &_dwc_otg_fiq_stub, &_dwc_otg_fiq_stub_end - &_dwc_otg_fiq_stub); + memset(®s,0,sizeof(regs)); + + regs.ARM_r8 = (long) dwc_otg_hcd->fiq_state; + if (fiq_fsm_enable) { + regs.ARM_r9 = dwc_otg_hcd->core_if->core_params->host_channels; + //regs.ARM_r10 = dwc_otg_hcd->dma; + regs.ARM_fp = (long) dwc_otg_fiq_fsm; + } else { + regs.ARM_fp = (long) dwc_otg_fiq_nop; + } + + regs.ARM_sp = (long) dwc_otg_hcd->fiq_stack + (sizeof(struct fiq_stack) - 4); + +// __show_regs(®s); + set_fiq_regs(®s); + + //Set the mphi periph to the required registers + dwc_otg_hcd->fiq_state->mphi_regs.base = otg_dev->os_dep.mphi_base; + dwc_otg_hcd->fiq_state->mphi_regs.ctrl = otg_dev->os_dep.mphi_base + 0x4c; + dwc_otg_hcd->fiq_state->mphi_regs.outdda = otg_dev->os_dep.mphi_base + 0x28; + dwc_otg_hcd->fiq_state->mphi_regs.outddb = otg_dev->os_dep.mphi_base + 0x2c; + dwc_otg_hcd->fiq_state->mphi_regs.intstat = otg_dev->os_dep.mphi_base + 0x50; + dwc_otg_hcd->fiq_state->dwc_regs_base = otg_dev->os_dep.base; + DWC_WARN("MPHI regs_base at 0x%08x", (int)dwc_otg_hcd->fiq_state->mphi_regs.base); + //Enable mphi peripheral + writel((1<<31),dwc_otg_hcd->fiq_state->mphi_regs.ctrl); +#ifdef DEBUG + if (readl(dwc_otg_hcd->fiq_state->mphi_regs.ctrl) & 0x80000000) + DWC_WARN("MPHI periph has been enabled"); + else + DWC_WARN("MPHI periph has NOT been enabled"); +#endif + // Enable FIQ interrupt from USB peripheral +#ifdef CONFIG_MULTI_IRQ_HANDLER + irq = platform_get_irq(otg_dev->os_dep.platformdev, 1); +#else + irq = INTERRUPT_VC_USB; +#endif + if (irq < 0) { + DWC_ERROR("Can't get FIQ irq"); + return; + } + enable_fiq(irq); + local_fiq_enable(); +} + +/** + * Initializes the HCD. This function allocates memory for and initializes the + * static parts of the usb_hcd and dwc_otg_hcd structures. It also registers the + * USB bus with the core and calls the hc_driver->start() function. It returns + * a negative error on failure. + */ +int hcd_init(dwc_bus_dev_t *_dev) +{ + struct usb_hcd *hcd = NULL; + dwc_otg_hcd_t *dwc_otg_hcd = NULL; + dwc_otg_device_t *otg_dev = DWC_OTG_BUSDRVDATA(_dev); + int retval = 0; + u64 dmamask; + + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD INIT otg_dev=%p\n", otg_dev); + + /* Set device flags indicating whether the HCD supports DMA. */ + if (dwc_otg_is_dma_enable(otg_dev->core_if)) + dmamask = DMA_BIT_MASK(32); + else + dmamask = 0; + +#if defined(LM_INTERFACE) || defined(PLATFORM_INTERFACE) + dma_set_mask(&_dev->dev, dmamask); + dma_set_coherent_mask(&_dev->dev, dmamask); +#elif defined(PCI_INTERFACE) + pci_set_dma_mask(_dev, dmamask); + pci_set_consistent_dma_mask(_dev, dmamask); +#endif + + /* + * Allocate memory for the base HCD plus the DWC OTG HCD. + * Initialize the base HCD. + */ +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30) + hcd = usb_create_hcd(&dwc_otg_hc_driver, &_dev->dev, _dev->dev.bus_id); +#else + hcd = usb_create_hcd(&dwc_otg_hc_driver, &_dev->dev, dev_name(&_dev->dev)); + hcd->has_tt = 1; +// hcd->uses_new_polling = 1; +// hcd->poll_rh = 0; +#endif + if (!hcd) { + retval = -ENOMEM; + goto error1; + } + + hcd->regs = otg_dev->os_dep.base; + + + /* Initialize the DWC OTG HCD. */ + dwc_otg_hcd = dwc_otg_hcd_alloc_hcd(); + if (!dwc_otg_hcd) { + goto error2; + } + ((struct wrapper_priv_data *)(hcd->hcd_priv))->dwc_otg_hcd = + dwc_otg_hcd; + otg_dev->hcd = dwc_otg_hcd; + otg_dev->hcd->otg_dev = otg_dev; + + if (dwc_otg_hcd_init(dwc_otg_hcd, otg_dev->core_if)) { + goto error2; + } + + if (fiq_enable) { + if (num_online_cpus() > 1) { + /* bcm2709: can run the FIQ on a separate core to IRQs */ + smp_call_function_single(1, hcd_init_fiq, otg_dev, 1); + } else { + smp_call_function_single(0, hcd_init_fiq, otg_dev, 1); + } + } + + hcd->self.otg_port = dwc_otg_hcd_otg_port(dwc_otg_hcd); +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33) //don't support for LM(with 2.6.20.1 kernel) +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,35) //version field absent later + hcd->self.otg_version = dwc_otg_get_otg_version(otg_dev->core_if); +#endif + /* Don't support SG list at this point */ + hcd->self.sg_tablesize = 0; +#endif + /* + * Finish generic HCD initialization and start the HCD. This function + * allocates the DMA buffer pool, registers the USB bus, requests the + * IRQ line, and calls hcd_start method. + */ +#ifdef PLATFORM_INTERFACE + retval = usb_add_hcd(hcd, platform_get_irq(_dev, fiq_enable ? 0 : 1), IRQF_SHARED); +#else + retval = usb_add_hcd(hcd, _dev->irq, IRQF_SHARED); +#endif + if (retval < 0) { + goto error2; + } + + dwc_otg_hcd_set_priv_data(dwc_otg_hcd, hcd); + return 0; + +error2: + usb_put_hcd(hcd); +error1: + return retval; +} + +/** + * Removes the HCD. + * Frees memory and resources associated with the HCD and deregisters the bus. + */ +void hcd_remove(dwc_bus_dev_t *_dev) +{ + dwc_otg_device_t *otg_dev = DWC_OTG_BUSDRVDATA(_dev); + dwc_otg_hcd_t *dwc_otg_hcd; + struct usb_hcd *hcd; + + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD REMOVE otg_dev=%p\n", otg_dev); + + if (!otg_dev) { + DWC_DEBUGPL(DBG_ANY, "%s: otg_dev NULL!\n", __func__); + return; + } + + dwc_otg_hcd = otg_dev->hcd; + + if (!dwc_otg_hcd) { + DWC_DEBUGPL(DBG_ANY, "%s: otg_dev->hcd NULL!\n", __func__); + return; + } + + hcd = dwc_otg_hcd_to_hcd(dwc_otg_hcd); + + if (!hcd) { + DWC_DEBUGPL(DBG_ANY, + "%s: dwc_otg_hcd_to_hcd(dwc_otg_hcd) NULL!\n", + __func__); + return; + } + usb_remove_hcd(hcd); + dwc_otg_hcd_set_priv_data(dwc_otg_hcd, NULL); + dwc_otg_hcd_remove(dwc_otg_hcd); + usb_put_hcd(hcd); +} + +/* ========================================================================= + * Linux HC Driver Functions + * ========================================================================= */ + +/** Initializes the DWC_otg controller and its root hub and prepares it for host + * mode operation. Activates the root port. Returns 0 on success and a negative + * error code on failure. */ +int hcd_start(struct usb_hcd *hcd) +{ + dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); + struct usb_bus *bus; + + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD START\n"); + bus = hcd_to_bus(hcd); + + hcd->state = HC_STATE_RUNNING; + if (dwc_otg_hcd_start(dwc_otg_hcd, &hcd_fops)) { + return 0; + } + + /* Initialize and connect root hub if one is not already attached */ + if (bus->root_hub) { + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD Has Root Hub\n"); + /* Inform the HUB driver to resume. */ + usb_hcd_resume_root_hub(hcd); + } + + return 0; +} + +/** + * Halts the DWC_otg host mode operations in a clean manner. USB transfers are + * stopped. + */ +void hcd_stop(struct usb_hcd *hcd) +{ + dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); + + dwc_otg_hcd_stop(dwc_otg_hcd); +} + +/** Returns the current frame number. */ +static int get_frame_number(struct usb_hcd *hcd) +{ + hprt0_data_t hprt0; + dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); + hprt0.d32 = DWC_READ_REG32(dwc_otg_hcd->core_if->host_if->hprt0); + if (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_HIGH_SPEED) + return dwc_otg_hcd_get_frame_number(dwc_otg_hcd) >> 3; + else + return dwc_otg_hcd_get_frame_number(dwc_otg_hcd); +} + +#ifdef DEBUG +static void dump_urb_info(struct urb *urb, char *fn_name) +{ + DWC_PRINTF("%s, urb %p\n", fn_name, urb); + DWC_PRINTF(" Device address: %d\n", usb_pipedevice(urb->pipe)); + DWC_PRINTF(" Endpoint: %d, %s\n", usb_pipeendpoint(urb->pipe), + (usb_pipein(urb->pipe) ? "IN" : "OUT")); + DWC_PRINTF(" Endpoint type: %s\n", ( { + char *pipetype; + switch (usb_pipetype(urb->pipe)) { +case PIPE_CONTROL: +pipetype = "CONTROL"; break; case PIPE_BULK: +pipetype = "BULK"; break; case PIPE_INTERRUPT: +pipetype = "INTERRUPT"; break; case PIPE_ISOCHRONOUS: +pipetype = "ISOCHRONOUS"; break; default: + pipetype = "UNKNOWN"; break;}; + pipetype;} + )) ; + DWC_PRINTF(" Speed: %s\n", ( { + char *speed; switch (urb->dev->speed) { +case USB_SPEED_HIGH: +speed = "HIGH"; break; case USB_SPEED_FULL: +speed = "FULL"; break; case USB_SPEED_LOW: +speed = "LOW"; break; default: + speed = "UNKNOWN"; break;}; + speed;} + )) ; + DWC_PRINTF(" Max packet size: %d\n", + usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe))); + DWC_PRINTF(" Data buffer length: %d\n", urb->transfer_buffer_length); + DWC_PRINTF(" Transfer buffer: %p, Transfer DMA: %p\n", + urb->transfer_buffer, (void *)urb->transfer_dma); + DWC_PRINTF(" Setup buffer: %p, Setup DMA: %p\n", + urb->setup_packet, (void *)urb->setup_dma); + DWC_PRINTF(" Interval: %d\n", urb->interval); + if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { + int i; + for (i = 0; i < urb->number_of_packets; i++) { + DWC_PRINTF(" ISO Desc %d:\n", i); + DWC_PRINTF(" offset: %d, length %d\n", + urb->iso_frame_desc[i].offset, + urb->iso_frame_desc[i].length); + } + } +} +#endif + +/** Starts processing a USB transfer request specified by a USB Request Block + * (URB). mem_flags indicates the type of memory allocation to use while + * processing this URB. */ +static int dwc_otg_urb_enqueue(struct usb_hcd *hcd, +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28) + struct usb_host_endpoint *ep, +#endif + struct urb *urb, gfp_t mem_flags) +{ + int retval = 0; +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28) + struct usb_host_endpoint *ep = urb->ep; +#endif + dwc_irqflags_t irqflags; + void **ref_ep_hcpriv = &ep->hcpriv; + dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); + dwc_otg_hcd_urb_t *dwc_otg_urb; + int i; + int alloc_bandwidth = 0; + uint8_t ep_type = 0; + uint32_t flags = 0; + void *buf; + +#ifdef DEBUG + if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) { + dump_urb_info(urb, "dwc_otg_urb_enqueue"); + } +#endif + + if (!urb->transfer_buffer && urb->transfer_buffer_length) + return -EINVAL; + + if ((usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) + || (usb_pipetype(urb->pipe) == PIPE_INTERRUPT)) { + if (!dwc_otg_hcd_is_bandwidth_allocated + (dwc_otg_hcd, ref_ep_hcpriv)) { + alloc_bandwidth = 1; + } + } + + switch (usb_pipetype(urb->pipe)) { + case PIPE_CONTROL: + ep_type = USB_ENDPOINT_XFER_CONTROL; + break; + case PIPE_ISOCHRONOUS: + ep_type = USB_ENDPOINT_XFER_ISOC; + break; + case PIPE_BULK: + ep_type = USB_ENDPOINT_XFER_BULK; + break; + case PIPE_INTERRUPT: + ep_type = USB_ENDPOINT_XFER_INT; + break; + default: + DWC_WARN("Wrong EP type - %d\n", usb_pipetype(urb->pipe)); + } + + /* # of packets is often 0 - do we really need to call this then? */ + dwc_otg_urb = dwc_otg_hcd_urb_alloc(dwc_otg_hcd, + urb->number_of_packets, + mem_flags == GFP_ATOMIC ? 1 : 0); + + if(dwc_otg_urb == NULL) + return -ENOMEM; + + if (!dwc_otg_urb && urb->number_of_packets) + return -ENOMEM; + + dwc_otg_hcd_urb_set_pipeinfo(dwc_otg_urb, usb_pipedevice(urb->pipe), + usb_pipeendpoint(urb->pipe), ep_type, + usb_pipein(urb->pipe), + usb_maxpacket(urb->dev, urb->pipe, + !(usb_pipein(urb->pipe)))); + + buf = urb->transfer_buffer; + if (hcd->self.uses_dma && !buf && urb->transfer_buffer_length) { + /* + * Calculate virtual address from physical address, + * because some class driver may not fill transfer_buffer. + * In Buffer DMA mode virual address is used, + * when handling non DWORD aligned buffers. + */ + buf = (void *)__bus_to_virt((unsigned long)urb->transfer_dma); + dev_warn_once(&urb->dev->dev, + "USB transfer_buffer was NULL, will use __bus_to_virt(%pad)=%p\n", + &urb->transfer_dma, buf); + } + + if (!(urb->transfer_flags & URB_NO_INTERRUPT)) + flags |= URB_GIVEBACK_ASAP; + if (urb->transfer_flags & URB_ZERO_PACKET) + flags |= URB_SEND_ZERO_PACKET; + + dwc_otg_hcd_urb_set_params(dwc_otg_urb, urb, buf, + urb->transfer_dma, + urb->transfer_buffer_length, + urb->setup_packet, + urb->setup_dma, flags, urb->interval); + + for (i = 0; i < urb->number_of_packets; ++i) { + dwc_otg_hcd_urb_set_iso_desc_params(dwc_otg_urb, i, + urb-> + iso_frame_desc[i].offset, + urb-> + iso_frame_desc[i].length); + } + + DWC_SPINLOCK_IRQSAVE(dwc_otg_hcd->lock, &irqflags); + urb->hcpriv = dwc_otg_urb; +#if USB_URB_EP_LINKING + retval = usb_hcd_link_urb_to_ep(hcd, urb); + if (0 == retval) +#endif + { + retval = dwc_otg_hcd_urb_enqueue(dwc_otg_hcd, dwc_otg_urb, + /*(dwc_otg_qh_t **)*/ + ref_ep_hcpriv, 1); + if (0 == retval) { + if (alloc_bandwidth) { + allocate_bus_bandwidth(hcd, + dwc_otg_hcd_get_ep_bandwidth( + dwc_otg_hcd, *ref_ep_hcpriv), + urb); + } + } else { + DWC_DEBUGPL(DBG_HCD, "DWC OTG dwc_otg_hcd_urb_enqueue failed rc %d\n", retval); +#if USB_URB_EP_LINKING + usb_hcd_unlink_urb_from_ep(hcd, urb); +#endif + DWC_FREE(dwc_otg_urb); + urb->hcpriv = NULL; + if (retval == -DWC_E_NO_DEVICE) + retval = -ENODEV; + } + } +#if USB_URB_EP_LINKING + else + { + DWC_FREE(dwc_otg_urb); + urb->hcpriv = NULL; + } +#endif + DWC_SPINUNLOCK_IRQRESTORE(dwc_otg_hcd->lock, irqflags); + return retval; +} + +/** Aborts/cancels a USB transfer request. Always returns 0 to indicate + * success. */ +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28) +static int dwc_otg_urb_dequeue(struct usb_hcd *hcd, struct urb *urb) +#else +static int dwc_otg_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) +#endif +{ + dwc_irqflags_t flags; + dwc_otg_hcd_t *dwc_otg_hcd; + int rc; + + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD URB Dequeue\n"); + + dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); + +#ifdef DEBUG + if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) { + dump_urb_info(urb, "dwc_otg_urb_dequeue"); + } +#endif + + DWC_SPINLOCK_IRQSAVE(dwc_otg_hcd->lock, &flags); + rc = usb_hcd_check_unlink_urb(hcd, urb, status); + if (0 == rc) { + if(urb->hcpriv != NULL) { + dwc_otg_hcd_urb_dequeue(dwc_otg_hcd, + (dwc_otg_hcd_urb_t *)urb->hcpriv); + + DWC_FREE(urb->hcpriv); + urb->hcpriv = NULL; + } + } + + if (0 == rc) { + /* Higher layer software sets URB status. */ +#if USB_URB_EP_LINKING + usb_hcd_unlink_urb_from_ep(hcd, urb); +#endif + DWC_SPINUNLOCK_IRQRESTORE(dwc_otg_hcd->lock, flags); + + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28) + usb_hcd_giveback_urb(hcd, urb); +#else + usb_hcd_giveback_urb(hcd, urb, status); +#endif + if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) { + DWC_PRINTF("Called usb_hcd_giveback_urb() \n"); + DWC_PRINTF(" 1urb->status = %d\n", urb->status); + } + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD URB Dequeue OK\n"); + } else { + DWC_SPINUNLOCK_IRQRESTORE(dwc_otg_hcd->lock, flags); + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD URB Dequeue failed - rc %d\n", + rc); + } + + return rc; +} + +/* Frees resources in the DWC_otg controller related to a given endpoint. Also + * clears state in the HCD related to the endpoint. Any URBs for the endpoint + * must already be dequeued. */ +static void endpoint_disable(struct usb_hcd *hcd, struct usb_host_endpoint *ep) +{ + dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); + + DWC_DEBUGPL(DBG_HCD, + "DWC OTG HCD EP DISABLE: _bEndpointAddress=0x%02x, " + "endpoint=%d\n", ep->desc.bEndpointAddress, + dwc_ep_addr_to_endpoint(ep->desc.bEndpointAddress)); + dwc_otg_hcd_endpoint_disable(dwc_otg_hcd, ep->hcpriv, 250); + ep->hcpriv = NULL; +} + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30) +/* Resets endpoint specific parameter values, in current version used to reset + * the data toggle(as a WA). This function can be called from usb_clear_halt routine */ +static void endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep) +{ + dwc_irqflags_t flags; + struct usb_device *udev = NULL; + int epnum = usb_endpoint_num(&ep->desc); + int is_out = usb_endpoint_dir_out(&ep->desc); + int is_control = usb_endpoint_xfer_control(&ep->desc); + dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); + struct device *dev = DWC_OTG_OS_GETDEV(dwc_otg_hcd->otg_dev->os_dep); + + if (dev) + udev = to_usb_device(dev); + else + return; + + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD EP RESET: Endpoint Num=0x%02d\n", epnum); + + DWC_SPINLOCK_IRQSAVE(dwc_otg_hcd->lock, &flags); + usb_settoggle(udev, epnum, is_out, 0); + if (is_control) + usb_settoggle(udev, epnum, !is_out, 0); + + if (ep->hcpriv) { + dwc_otg_hcd_endpoint_reset(dwc_otg_hcd, ep->hcpriv); + } + DWC_SPINUNLOCK_IRQRESTORE(dwc_otg_hcd->lock, flags); +} +#endif + +/** Handles host mode interrupts for the DWC_otg controller. Returns IRQ_NONE if + * there was no interrupt to handle. Returns IRQ_HANDLED if there was a valid + * interrupt. + * + * This function is called by the USB core when an interrupt occurs */ +static irqreturn_t dwc_otg_hcd_irq(struct usb_hcd *hcd) +{ + dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); + int32_t retval = dwc_otg_hcd_handle_intr(dwc_otg_hcd); + if (retval != 0) { + S3C2410X_CLEAR_EINTPEND(); + } + return IRQ_RETVAL(retval); +} + +/** Creates Status Change bitmap for the root hub and root port. The bitmap is + * returned in buf. Bit 0 is the status change indicator for the root hub. Bit 1 + * is the status change indicator for the single root port. Returns 1 if either + * change indicator is 1, otherwise returns 0. */ +int hub_status_data(struct usb_hcd *hcd, char *buf) +{ + dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd); + + buf[0] = 0; + buf[0] |= (dwc_otg_hcd_is_status_changed(dwc_otg_hcd, 1)) << 1; + + return (buf[0] != 0); +} + +/** Handles hub class-specific requests. */ +int hub_control(struct usb_hcd *hcd, + u16 typeReq, u16 wValue, u16 wIndex, char *buf, u16 wLength) +{ + int retval; + + retval = dwc_otg_hcd_hub_control(hcd_to_dwc_otg_hcd(hcd), + typeReq, wValue, wIndex, buf, wLength); + + switch (retval) { + case -DWC_E_INVALID: + retval = -EINVAL; + break; + } + + return retval; +} + +#endif /* DWC_DEVICE_ONLY */ diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c new file mode 100644 index 0000000000000000000000000000000000000000..c2dff94e8e6edd22e4427aaa1eac7aad972cb6bd --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c @@ -0,0 +1,963 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd_queue.c $ + * $Revision: #44 $ + * $Date: 2011/10/26 $ + * $Change: 1873028 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ +#ifndef DWC_DEVICE_ONLY + +/** + * @file + * + * This file contains the functions to manage Queue Heads and Queue + * Transfer Descriptors. + */ + +#include "dwc_otg_hcd.h" +#include "dwc_otg_regs.h" + +extern bool microframe_schedule; + +/** + * Free each QTD in the QH's QTD-list then free the QH. QH should already be + * removed from a list. QTD list should already be empty if called from URB + * Dequeue. + * + * @param hcd HCD instance. + * @param qh The QH to free. + */ +void dwc_otg_hcd_qh_free(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) +{ + dwc_otg_qtd_t *qtd, *qtd_tmp; + dwc_irqflags_t flags; + uint32_t buf_size = 0; + uint8_t *align_buf_virt = NULL; + dwc_dma_t align_buf_dma; + struct device *dev = dwc_otg_hcd_to_dev(hcd); + + /* Free each QTD in the QTD list */ + DWC_SPINLOCK_IRQSAVE(hcd->lock, &flags); + DWC_CIRCLEQ_FOREACH_SAFE(qtd, qtd_tmp, &qh->qtd_list, qtd_list_entry) { + DWC_CIRCLEQ_REMOVE(&qh->qtd_list, qtd, qtd_list_entry); + dwc_otg_hcd_qtd_free(qtd); + } + + if (hcd->core_if->dma_desc_enable) { + dwc_otg_hcd_qh_free_ddma(hcd, qh); + } else if (qh->dw_align_buf) { + if (qh->ep_type == UE_ISOCHRONOUS) { + buf_size = 4096; + } else { + buf_size = hcd->core_if->core_params->max_transfer_size; + } + align_buf_virt = qh->dw_align_buf; + align_buf_dma = qh->dw_align_buf_dma; + } + + DWC_FREE(qh); + DWC_SPINUNLOCK_IRQRESTORE(hcd->lock, flags); + if (align_buf_virt) + DWC_DMA_FREE(dev, buf_size, align_buf_virt, align_buf_dma); + return; +} + +#define BitStuffTime(bytecount) ((8 * 7* bytecount) / 6) +#define HS_HOST_DELAY 5 /* nanoseconds */ +#define FS_LS_HOST_DELAY 1000 /* nanoseconds */ +#define HUB_LS_SETUP 333 /* nanoseconds */ +#define NS_TO_US(ns) ((ns + 500) / 1000) + /* convert & round nanoseconds to microseconds */ + +static uint32_t calc_bus_time(int speed, int is_in, int is_isoc, int bytecount) +{ + unsigned long retval; + + switch (speed) { + case USB_SPEED_HIGH: + if (is_isoc) { + retval = + ((38 * 8 * 2083) + + (2083 * (3 + BitStuffTime(bytecount)))) / 1000 + + HS_HOST_DELAY; + } else { + retval = + ((55 * 8 * 2083) + + (2083 * (3 + BitStuffTime(bytecount)))) / 1000 + + HS_HOST_DELAY; + } + break; + case USB_SPEED_FULL: + if (is_isoc) { + retval = + (8354 * (31 + 10 * BitStuffTime(bytecount))) / 1000; + if (is_in) { + retval = 7268 + FS_LS_HOST_DELAY + retval; + } else { + retval = 6265 + FS_LS_HOST_DELAY + retval; + } + } else { + retval = + (8354 * (31 + 10 * BitStuffTime(bytecount))) / 1000; + retval = 9107 + FS_LS_HOST_DELAY + retval; + } + break; + case USB_SPEED_LOW: + if (is_in) { + retval = + (67667 * (31 + 10 * BitStuffTime(bytecount))) / + 1000; + retval = + 64060 + (2 * HUB_LS_SETUP) + FS_LS_HOST_DELAY + + retval; + } else { + retval = + (66700 * (31 + 10 * BitStuffTime(bytecount))) / + 1000; + retval = + 64107 + (2 * HUB_LS_SETUP) + FS_LS_HOST_DELAY + + retval; + } + break; + default: + DWC_WARN("Unknown device speed\n"); + retval = -1; + } + + return NS_TO_US(retval); +} + +/** + * Initializes a QH structure. + * + * @param hcd The HCD state structure for the DWC OTG controller. + * @param qh The QH to init. + * @param urb Holds the information about the device/endpoint that we need + * to initialize the QH. + */ +#define SCHEDULE_SLOP 10 +void qh_init(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh, dwc_otg_hcd_urb_t * urb) +{ + char *speed, *type; + int dev_speed; + uint32_t hub_addr, hub_port; + + dwc_memset(qh, 0, sizeof(dwc_otg_qh_t)); + + /* Initialize QH */ + qh->ep_type = dwc_otg_hcd_get_pipe_type(&urb->pipe_info); + qh->ep_is_in = dwc_otg_hcd_is_pipe_in(&urb->pipe_info) ? 1 : 0; + + qh->data_toggle = DWC_OTG_HC_PID_DATA0; + qh->maxp = dwc_otg_hcd_get_mps(&urb->pipe_info); + DWC_CIRCLEQ_INIT(&qh->qtd_list); + DWC_LIST_INIT(&qh->qh_list_entry); + qh->channel = NULL; + + /* FS/LS Enpoint on HS Hub + * NOT virtual root hub */ + dev_speed = hcd->fops->speed(hcd, urb->priv); + + hcd->fops->hub_info(hcd, urb->priv, &hub_addr, &hub_port); + qh->do_split = 0; + if (microframe_schedule) + qh->speed = dev_speed; + + qh->nak_frame = 0xffff; + + if (((dev_speed == USB_SPEED_LOW) || + (dev_speed == USB_SPEED_FULL)) && + (hub_addr != 0 && hub_addr != 1)) { + DWC_DEBUGPL(DBG_HCD, + "QH init: EP %d: TT found at hub addr %d, for port %d\n", + dwc_otg_hcd_get_ep_num(&urb->pipe_info), hub_addr, + hub_port); + qh->do_split = 1; + qh->skip_count = 0; + } + + if (qh->ep_type == UE_INTERRUPT || qh->ep_type == UE_ISOCHRONOUS) { + /* Compute scheduling parameters once and save them. */ + hprt0_data_t hprt; + + /** @todo Account for split transfers in the bus time. */ + int bytecount = + dwc_hb_mult(qh->maxp) * dwc_max_packet(qh->maxp); + + qh->usecs = + calc_bus_time((qh->do_split ? USB_SPEED_HIGH : dev_speed), + qh->ep_is_in, (qh->ep_type == UE_ISOCHRONOUS), + bytecount); + /* Start in a slightly future (micro)frame. */ + qh->sched_frame = dwc_frame_num_inc(hcd->frame_number, + SCHEDULE_SLOP); + qh->interval = urb->interval; + +#if 0 + /* Increase interrupt polling rate for debugging. */ + if (qh->ep_type == UE_INTERRUPT) { + qh->interval = 8; + } +#endif + hprt.d32 = DWC_READ_REG32(hcd->core_if->host_if->hprt0); + if ((hprt.b.prtspd == DWC_HPRT0_PRTSPD_HIGH_SPEED) && + ((dev_speed == USB_SPEED_LOW) || + (dev_speed == USB_SPEED_FULL))) { + qh->interval *= 8; + qh->sched_frame |= 0x7; + qh->start_split_frame = qh->sched_frame; + } + + } + + DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD QH Initialized\n"); + DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - qh = %p\n", qh); + DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - Device Address = %d\n", + dwc_otg_hcd_get_dev_addr(&urb->pipe_info)); + DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - Endpoint %d, %s\n", + dwc_otg_hcd_get_ep_num(&urb->pipe_info), + dwc_otg_hcd_is_pipe_in(&urb->pipe_info) ? "IN" : "OUT"); + switch (dev_speed) { + case USB_SPEED_LOW: + qh->dev_speed = DWC_OTG_EP_SPEED_LOW; + speed = "low"; + break; + case USB_SPEED_FULL: + qh->dev_speed = DWC_OTG_EP_SPEED_FULL; + speed = "full"; + break; + case USB_SPEED_HIGH: + qh->dev_speed = DWC_OTG_EP_SPEED_HIGH; + speed = "high"; + break; + default: + speed = "?"; + break; + } + DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - Speed = %s\n", speed); + + switch (qh->ep_type) { + case UE_ISOCHRONOUS: + type = "isochronous"; + break; + case UE_INTERRUPT: + type = "interrupt"; + break; + case UE_CONTROL: + type = "control"; + break; + case UE_BULK: + type = "bulk"; + break; + default: + type = "?"; + break; + } + + DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - Type = %s\n", type); + +#ifdef DEBUG + if (qh->ep_type == UE_INTERRUPT) { + DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - usecs = %d\n", + qh->usecs); + DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - interval = %d\n", + qh->interval); + } +#endif + +} + +/** + * This function allocates and initializes a QH. + * + * @param hcd The HCD state structure for the DWC OTG controller. + * @param urb Holds the information about the device/endpoint that we need + * to initialize the QH. + * @param atomic_alloc Flag to do atomic allocation if needed + * + * @return Returns pointer to the newly allocated QH, or NULL on error. */ +dwc_otg_qh_t *dwc_otg_hcd_qh_create(dwc_otg_hcd_t * hcd, + dwc_otg_hcd_urb_t * urb, int atomic_alloc) +{ + dwc_otg_qh_t *qh; + + /* Allocate memory */ + /** @todo add memflags argument */ + qh = dwc_otg_hcd_qh_alloc(atomic_alloc); + if (qh == NULL) { + DWC_ERROR("qh allocation failed"); + return NULL; + } + + qh_init(hcd, qh, urb); + + if (hcd->core_if->dma_desc_enable + && (dwc_otg_hcd_qh_init_ddma(hcd, qh) < 0)) { + dwc_otg_hcd_qh_free(hcd, qh); + return NULL; + } + + return qh; +} + +/* microframe_schedule=0 start */ + +/** + * Checks that a channel is available for a periodic transfer. + * + * @return 0 if successful, negative error code otherise. + */ +static int periodic_channel_available(dwc_otg_hcd_t * hcd) +{ + /* + * Currently assuming that there is a dedicated host channnel for each + * periodic transaction plus at least one host channel for + * non-periodic transactions. + */ + int status; + int num_channels; + + num_channels = hcd->core_if->core_params->host_channels; + if ((hcd->periodic_channels + hcd->non_periodic_channels < num_channels) + && (hcd->periodic_channels < num_channels - 1)) { + status = 0; + } else { + DWC_INFO("%s: Total channels: %d, Periodic: %d, Non-periodic: %d\n", + __func__, num_channels, hcd->periodic_channels, hcd->non_periodic_channels); //NOTICE + status = -DWC_E_NO_SPACE; + } + + return status; +} + +/** + * Checks that there is sufficient bandwidth for the specified QH in the + * periodic schedule. For simplicity, this calculation assumes that all the + * transfers in the periodic schedule may occur in the same (micro)frame. + * + * @param hcd The HCD state structure for the DWC OTG controller. + * @param qh QH containing periodic bandwidth required. + * + * @return 0 if successful, negative error code otherwise. + */ +static int check_periodic_bandwidth(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) +{ + int status; + int16_t max_claimed_usecs; + + status = 0; + + if ((qh->dev_speed == DWC_OTG_EP_SPEED_HIGH) || qh->do_split) { + /* + * High speed mode. + * Max periodic usecs is 80% x 125 usec = 100 usec. + */ + + max_claimed_usecs = 100 - qh->usecs; + } else { + /* + * Full speed mode. + * Max periodic usecs is 90% x 1000 usec = 900 usec. + */ + max_claimed_usecs = 900 - qh->usecs; + } + + if (hcd->periodic_usecs > max_claimed_usecs) { + DWC_INFO("%s: already claimed usecs %d, required usecs %d\n", __func__, hcd->periodic_usecs, qh->usecs); //NOTICE + status = -DWC_E_NO_SPACE; + } + + return status; +} + +/* microframe_schedule=0 end */ + +/** + * Microframe scheduler + * track the total use in hcd->frame_usecs + * keep each qh use in qh->frame_usecs + * when surrendering the qh then donate the time back + */ +const unsigned short max_uframe_usecs[]={ 100, 100, 100, 100, 100, 100, 30, 0 }; + +/* + * called from dwc_otg_hcd.c:dwc_otg_hcd_init + */ +int init_hcd_usecs(dwc_otg_hcd_t *_hcd) +{ + int i; + for (i=0; i<8; i++) { + _hcd->frame_usecs[i] = max_uframe_usecs[i]; + } + return 0; +} + +static int find_single_uframe(dwc_otg_hcd_t * _hcd, dwc_otg_qh_t * _qh) +{ + int i; + unsigned short utime; + int t_left; + int ret; + int done; + + ret = -1; + utime = _qh->usecs; + t_left = utime; + i = 0; + done = 0; + while (done == 0) { + /* At the start _hcd->frame_usecs[i] = max_uframe_usecs[i]; */ + if (utime <= _hcd->frame_usecs[i]) { + _hcd->frame_usecs[i] -= utime; + _qh->frame_usecs[i] += utime; + t_left -= utime; + ret = i; + done = 1; + return ret; + } else { + i++; + if (i == 8) { + done = 1; + ret = -1; + } + } + } + return ret; + } + +/* + * use this for FS apps that can span multiple uframes + */ +static int find_multi_uframe(dwc_otg_hcd_t * _hcd, dwc_otg_qh_t * _qh) +{ + int i; + int j; + unsigned short utime; + int t_left; + int ret; + int done; + unsigned short xtime; + + ret = -1; + utime = _qh->usecs; + t_left = utime; + i = 0; + done = 0; +loop: + while (done == 0) { + if(_hcd->frame_usecs[i] <= 0) { + i++; + if (i == 8) { + done = 1; + ret = -1; + } + goto loop; + } + + /* + * we need n consecutive slots + * so use j as a start slot j plus j+1 must be enough time (for now) + */ + xtime= _hcd->frame_usecs[i]; + for (j = i+1 ; j < 8 ; j++ ) { + /* + * if we add this frame remaining time to xtime we may + * be OK, if not we need to test j for a complete frame + */ + if ((xtime+_hcd->frame_usecs[j]) < utime) { + if (_hcd->frame_usecs[j] < max_uframe_usecs[j]) { + j = 8; + ret = -1; + continue; + } + } + if (xtime >= utime) { + ret = i; + j = 8; /* stop loop with a good value ret */ + continue; + } + /* add the frame time to x time */ + xtime += _hcd->frame_usecs[j]; + /* we must have a fully available next frame or break */ + if ((xtime < utime) + && (_hcd->frame_usecs[j] == max_uframe_usecs[j])) { + ret = -1; + j = 8; /* stop loop with a bad value ret */ + continue; + } + } + if (ret >= 0) { + t_left = utime; + for (j = i; (t_left>0) && (j < 8); j++ ) { + t_left -= _hcd->frame_usecs[j]; + if ( t_left <= 0 ) { + _qh->frame_usecs[j] += _hcd->frame_usecs[j] + t_left; + _hcd->frame_usecs[j]= -t_left; + ret = i; + done = 1; + } else { + _qh->frame_usecs[j] += _hcd->frame_usecs[j]; + _hcd->frame_usecs[j] = 0; + } + } + } else { + i++; + if (i == 8) { + done = 1; + ret = -1; + } + } + } + return ret; +} + +static int find_uframe(dwc_otg_hcd_t * _hcd, dwc_otg_qh_t * _qh) +{ + int ret; + ret = -1; + + if (_qh->speed == USB_SPEED_HIGH) { + /* if this is a hs transaction we need a full frame */ + ret = find_single_uframe(_hcd, _qh); + } else { + /* if this is a fs transaction we may need a sequence of frames */ + ret = find_multi_uframe(_hcd, _qh); + } + return ret; +} + +/** + * Checks that the max transfer size allowed in a host channel is large enough + * to handle the maximum data transfer in a single (micro)frame for a periodic + * transfer. + * + * @param hcd The HCD state structure for the DWC OTG controller. + * @param qh QH for a periodic endpoint. + * + * @return 0 if successful, negative error code otherwise. + */ +static int check_max_xfer_size(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) +{ + int status; + uint32_t max_xfer_size; + uint32_t max_channel_xfer_size; + + status = 0; + + max_xfer_size = dwc_max_packet(qh->maxp) * dwc_hb_mult(qh->maxp); + max_channel_xfer_size = hcd->core_if->core_params->max_transfer_size; + + if (max_xfer_size > max_channel_xfer_size) { + DWC_INFO("%s: Periodic xfer length %d > " "max xfer length for channel %d\n", + __func__, max_xfer_size, max_channel_xfer_size); //NOTICE + status = -DWC_E_NO_SPACE; + } + + return status; +} + + + +/** + * Schedules an interrupt or isochronous transfer in the periodic schedule. + * + * @param hcd The HCD state structure for the DWC OTG controller. + * @param qh QH for the periodic transfer. The QH should already contain the + * scheduling information. + * + * @return 0 if successful, negative error code otherwise. + */ +static int schedule_periodic(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) +{ + int status = 0; + + if (microframe_schedule) { + int frame; + status = find_uframe(hcd, qh); + frame = -1; + if (status == 0) { + frame = 7; + } else { + if (status > 0 ) + frame = status-1; + } + + /* Set the new frame up */ + if (frame > -1) { + qh->sched_frame &= ~0x7; + qh->sched_frame |= (frame & 7); + } + + if (status != -1) + status = 0; + } else { + status = periodic_channel_available(hcd); + if (status) { + DWC_INFO("%s: No host channel available for periodic " "transfer.\n", __func__); //NOTICE + return status; + } + + status = check_periodic_bandwidth(hcd, qh); + } + if (status) { + DWC_INFO("%s: Insufficient periodic bandwidth for " + "periodic transfer.\n", __func__); + return status; + } + status = check_max_xfer_size(hcd, qh); + if (status) { + DWC_INFO("%s: Channel max transfer size too small " + "for periodic transfer.\n", __func__); + return status; + } + + if (hcd->core_if->dma_desc_enable) { + /* Don't rely on SOF and start in ready schedule */ + DWC_LIST_INSERT_TAIL(&hcd->periodic_sched_ready, &qh->qh_list_entry); + } + else { + if(fiq_enable && (DWC_LIST_EMPTY(&hcd->periodic_sched_inactive) || dwc_frame_num_le(qh->sched_frame, hcd->fiq_state->next_sched_frame))) + { + hcd->fiq_state->next_sched_frame = qh->sched_frame; + + } + /* Always start in the inactive schedule. */ + DWC_LIST_INSERT_TAIL(&hcd->periodic_sched_inactive, &qh->qh_list_entry); + } + + if (!microframe_schedule) { + /* Reserve the periodic channel. */ + hcd->periodic_channels++; + } + + /* Update claimed usecs per (micro)frame. */ + hcd->periodic_usecs += qh->usecs; + + return status; +} + + +/** + * This function adds a QH to either the non periodic or periodic schedule if + * it is not already in the schedule. If the QH is already in the schedule, no + * action is taken. + * + * @return 0 if successful, negative error code otherwise. + */ +int dwc_otg_hcd_qh_add(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) +{ + int status = 0; + gintmsk_data_t intr_mask = {.d32 = 0 }; + + if (!DWC_LIST_EMPTY(&qh->qh_list_entry)) { + /* QH already in a schedule. */ + return status; + } + + /* Add the new QH to the appropriate schedule */ + if (dwc_qh_is_non_per(qh)) { + /* Always start in the inactive schedule. */ + DWC_LIST_INSERT_TAIL(&hcd->non_periodic_sched_inactive, + &qh->qh_list_entry); + //hcd->fiq_state->kick_np_queues = 1; + } else { + status = schedule_periodic(hcd, qh); + if ( !hcd->periodic_qh_count ) { + intr_mask.b.sofintr = 1; + if (fiq_enable) { + local_fiq_disable(); + fiq_fsm_spin_lock(&hcd->fiq_state->lock); + DWC_MODIFY_REG32(&hcd->core_if->core_global_regs->gintmsk, intr_mask.d32, intr_mask.d32); + fiq_fsm_spin_unlock(&hcd->fiq_state->lock); + local_fiq_enable(); + } else { + DWC_MODIFY_REG32(&hcd->core_if->core_global_regs->gintmsk, intr_mask.d32, intr_mask.d32); + } + } + hcd->periodic_qh_count++; + } + + return status; +} + +/** + * Removes an interrupt or isochronous transfer from the periodic schedule. + * + * @param hcd The HCD state structure for the DWC OTG controller. + * @param qh QH for the periodic transfer. + */ +static void deschedule_periodic(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) +{ + int i; + DWC_LIST_REMOVE_INIT(&qh->qh_list_entry); + + /* Update claimed usecs per (micro)frame. */ + hcd->periodic_usecs -= qh->usecs; + + if (!microframe_schedule) { + /* Release the periodic channel reservation. */ + hcd->periodic_channels--; + } else { + for (i = 0; i < 8; i++) { + hcd->frame_usecs[i] += qh->frame_usecs[i]; + qh->frame_usecs[i] = 0; + } + } +} + +/** + * Removes a QH from either the non-periodic or periodic schedule. Memory is + * not freed. + * + * @param hcd The HCD state structure. + * @param qh QH to remove from schedule. */ +void dwc_otg_hcd_qh_remove(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) +{ + gintmsk_data_t intr_mask = {.d32 = 0 }; + + if (DWC_LIST_EMPTY(&qh->qh_list_entry)) { + /* QH is not in a schedule. */ + return; + } + + if (dwc_qh_is_non_per(qh)) { + if (hcd->non_periodic_qh_ptr == &qh->qh_list_entry) { + hcd->non_periodic_qh_ptr = + hcd->non_periodic_qh_ptr->next; + } + DWC_LIST_REMOVE_INIT(&qh->qh_list_entry); + //if (!DWC_LIST_EMPTY(&hcd->non_periodic_sched_inactive)) + // hcd->fiq_state->kick_np_queues = 1; + } else { + deschedule_periodic(hcd, qh); + hcd->periodic_qh_count--; + if( !hcd->periodic_qh_count && !fiq_fsm_enable ) { + intr_mask.b.sofintr = 1; + if (fiq_enable) { + local_fiq_disable(); + fiq_fsm_spin_lock(&hcd->fiq_state->lock); + DWC_MODIFY_REG32(&hcd->core_if->core_global_regs->gintmsk, intr_mask.d32, 0); + fiq_fsm_spin_unlock(&hcd->fiq_state->lock); + local_fiq_enable(); + } else { + DWC_MODIFY_REG32(&hcd->core_if->core_global_regs->gintmsk, intr_mask.d32, 0); + } + } + } +} + +/** + * Deactivates a QH. For non-periodic QHs, removes the QH from the active + * non-periodic schedule. The QH is added to the inactive non-periodic + * schedule if any QTDs are still attached to the QH. + * + * For periodic QHs, the QH is removed from the periodic queued schedule. If + * there are any QTDs still attached to the QH, the QH is added to either the + * periodic inactive schedule or the periodic ready schedule and its next + * scheduled frame is calculated. The QH is placed in the ready schedule if + * the scheduled frame has been reached already. Otherwise it's placed in the + * inactive schedule. If there are no QTDs attached to the QH, the QH is + * completely removed from the periodic schedule. + */ +void dwc_otg_hcd_qh_deactivate(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh, + int sched_next_periodic_split) +{ + if (dwc_qh_is_non_per(qh)) { + dwc_otg_hcd_qh_remove(hcd, qh); + if (!DWC_CIRCLEQ_EMPTY(&qh->qtd_list)) { + /* Add back to inactive non-periodic schedule. */ + dwc_otg_hcd_qh_add(hcd, qh); + //hcd->fiq_state->kick_np_queues = 1; + } + } else { + uint16_t frame_number = dwc_otg_hcd_get_frame_number(hcd); + + if (qh->do_split) { + /* Schedule the next continuing periodic split transfer */ + if (sched_next_periodic_split) { + + qh->sched_frame = frame_number; + + if (dwc_frame_num_le(frame_number, + dwc_frame_num_inc + (qh->start_split_frame, + 1))) { + /* + * Allow one frame to elapse after start + * split microframe before scheduling + * complete split, but DONT if we are + * doing the next start split in the + * same frame for an ISOC out. + */ + if ((qh->ep_type != UE_ISOCHRONOUS) || + (qh->ep_is_in != 0)) { + qh->sched_frame = + dwc_frame_num_inc(qh->sched_frame, 1); + } + } + } else { + qh->sched_frame = + dwc_frame_num_inc(qh->start_split_frame, + qh->interval); + if (dwc_frame_num_le + (qh->sched_frame, frame_number)) { + qh->sched_frame = frame_number; + } + qh->sched_frame |= 0x7; + qh->start_split_frame = qh->sched_frame; + } + } else { + qh->sched_frame = + dwc_frame_num_inc(qh->sched_frame, qh->interval); + if (dwc_frame_num_le(qh->sched_frame, frame_number)) { + qh->sched_frame = frame_number; + } + } + + if (DWC_CIRCLEQ_EMPTY(&qh->qtd_list)) { + dwc_otg_hcd_qh_remove(hcd, qh); + } else { + /* + * Remove from periodic_sched_queued and move to + * appropriate queue. + */ + if ((microframe_schedule && dwc_frame_num_le(qh->sched_frame, frame_number)) || + (!microframe_schedule && qh->sched_frame == frame_number)) { + DWC_LIST_MOVE_HEAD(&hcd->periodic_sched_ready, + &qh->qh_list_entry); + } else { + if(fiq_enable && !dwc_frame_num_le(hcd->fiq_state->next_sched_frame, qh->sched_frame)) + { + hcd->fiq_state->next_sched_frame = qh->sched_frame; + } + + DWC_LIST_MOVE_HEAD + (&hcd->periodic_sched_inactive, + &qh->qh_list_entry); + } + } + } +} + +/** + * This function allocates and initializes a QTD. + * + * @param urb The URB to create a QTD from. Each URB-QTD pair will end up + * pointing to each other so each pair should have a unique correlation. + * @param atomic_alloc Flag to do atomic alloc if needed + * + * @return Returns pointer to the newly allocated QTD, or NULL on error. */ +dwc_otg_qtd_t *dwc_otg_hcd_qtd_create(dwc_otg_hcd_urb_t * urb, int atomic_alloc) +{ + dwc_otg_qtd_t *qtd; + + qtd = dwc_otg_hcd_qtd_alloc(atomic_alloc); + if (qtd == NULL) { + return NULL; + } + + dwc_otg_hcd_qtd_init(qtd, urb); + return qtd; +} + +/** + * Initializes a QTD structure. + * + * @param qtd The QTD to initialize. + * @param urb The URB to use for initialization. */ +void dwc_otg_hcd_qtd_init(dwc_otg_qtd_t * qtd, dwc_otg_hcd_urb_t * urb) +{ + dwc_memset(qtd, 0, sizeof(dwc_otg_qtd_t)); + qtd->urb = urb; + if (dwc_otg_hcd_get_pipe_type(&urb->pipe_info) == UE_CONTROL) { + /* + * The only time the QTD data toggle is used is on the data + * phase of control transfers. This phase always starts with + * DATA1. + */ + qtd->data_toggle = DWC_OTG_HC_PID_DATA1; + qtd->control_phase = DWC_OTG_CONTROL_SETUP; + } + + /* start split */ + qtd->complete_split = 0; + qtd->isoc_split_pos = DWC_HCSPLIT_XACTPOS_ALL; + qtd->isoc_split_offset = 0; + qtd->in_process = 0; + + /* Store the qtd ptr in the urb to reference what QTD. */ + urb->qtd = qtd; + return; +} + +/** + * This function adds a QTD to the QTD-list of a QH. It will find the correct + * QH to place the QTD into. If it does not find a QH, then it will create a + * new QH. If the QH to which the QTD is added is not currently scheduled, it + * is placed into the proper schedule based on its EP type. + * HCD lock must be held and interrupts must be disabled on entry + * + * @param[in] qtd The QTD to add + * @param[in] hcd The DWC HCD structure + * @param[out] qh out parameter to return queue head + * @param atomic_alloc Flag to do atomic alloc if needed + * + * @return 0 if successful, negative error code otherwise. + */ +int dwc_otg_hcd_qtd_add(dwc_otg_qtd_t * qtd, + dwc_otg_hcd_t * hcd, dwc_otg_qh_t ** qh, int atomic_alloc) +{ + int retval = 0; + dwc_otg_hcd_urb_t *urb = qtd->urb; + + /* + * Get the QH which holds the QTD-list to insert to. Create QH if it + * doesn't exist. + */ + if (*qh == NULL) { + *qh = dwc_otg_hcd_qh_create(hcd, urb, atomic_alloc); + if (*qh == NULL) { + retval = -DWC_E_NO_MEMORY; + goto done; + } else { + if (fiq_enable) + hcd->fiq_state->kick_np_queues = 1; + } + } + retval = dwc_otg_hcd_qh_add(hcd, *qh); + if (retval == 0) { + DWC_CIRCLEQ_INSERT_TAIL(&((*qh)->qtd_list), qtd, + qtd_list_entry); + qtd->qh = *qh; + } +done: + + return retval; +} + +#endif /* DWC_DEVICE_ONLY */ diff --git a/drivers/usb/host/dwc_otg/dwc_otg_os_dep.h b/drivers/usb/host/dwc_otg/dwc_otg_os_dep.h new file mode 100644 index 0000000000000000000000000000000000000000..6b2c7d0c93f36a63863ff4b0ecc1f3eab77e058b --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_os_dep.h @@ -0,0 +1,188 @@ +#ifndef _DWC_OS_DEP_H_ +#define _DWC_OS_DEP_H_ + +/** + * @file + * + * This file contains OS dependent structures. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20) +# include +#endif + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21) +# include +#else +# include +#endif + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24) +# include +#else +# include +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20) +# include +#endif + +#ifdef PCI_INTERFACE +# include +#endif + +#ifdef LM_INTERFACE +# include +# include +# include +# include +# if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30)) +# include +# include +# include +# include +# else +/* in 2.6.31, at least, we seem to have lost the generic LM infrastructure - + here we assume that the machine architecture provides definitions + in its own header +*/ +# include +# include +# endif +#endif + +#ifdef PLATFORM_INTERFACE +#include +#include +#endif + +/** The OS page size */ +#define DWC_OS_PAGE_SIZE PAGE_SIZE + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,14) +typedef int gfp_t; +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18) +# define IRQF_SHARED SA_SHIRQ +#endif + +typedef struct os_dependent { + /** Base address returned from ioremap() */ + void *base; + + /** Register offset for Diagnostic API */ + uint32_t reg_offset; + + /** Base address for MPHI peripheral */ + void *mphi_base; + +#ifdef LM_INTERFACE + struct lm_device *lmdev; +#elif defined(PCI_INTERFACE) + struct pci_dev *pcidev; + + /** Start address of a PCI region */ + resource_size_t rsrc_start; + + /** Length address of a PCI region */ + resource_size_t rsrc_len; +#elif defined(PLATFORM_INTERFACE) + struct platform_device *platformdev; +#endif + +} os_dependent_t; + +#ifdef __cplusplus +} +#endif + + + +/* Type for the our device on the chosen bus */ +#if defined(LM_INTERFACE) +typedef struct lm_device dwc_bus_dev_t; +#elif defined(PCI_INTERFACE) +typedef struct pci_dev dwc_bus_dev_t; +#elif defined(PLATFORM_INTERFACE) +typedef struct platform_device dwc_bus_dev_t; +#endif + +/* Helper macro to retrieve drvdata from the device on the chosen bus */ +#if defined(LM_INTERFACE) +#define DWC_OTG_BUSDRVDATA(_dev) lm_get_drvdata(_dev) +#elif defined(PCI_INTERFACE) +#define DWC_OTG_BUSDRVDATA(_dev) pci_get_drvdata(_dev) +#elif defined(PLATFORM_INTERFACE) +#define DWC_OTG_BUSDRVDATA(_dev) platform_get_drvdata(_dev) +#endif + +/** + * Helper macro returning the otg_device structure of a given struct device + * + * c.f. static dwc_otg_device_t *dwc_otg_drvdev(struct device *_dev) + */ +#ifdef LM_INTERFACE +#define DWC_OTG_GETDRVDEV(_var, _dev) do { \ + struct lm_device *lm_dev = \ + container_of(_dev, struct lm_device, dev); \ + _var = lm_get_drvdata(lm_dev); \ + } while (0) + +#elif defined(PCI_INTERFACE) +#define DWC_OTG_GETDRVDEV(_var, _dev) do { \ + _var = dev_get_drvdata(_dev); \ + } while (0) + +#elif defined(PLATFORM_INTERFACE) +#define DWC_OTG_GETDRVDEV(_var, _dev) do { \ + struct platform_device *platform_dev = \ + container_of(_dev, struct platform_device, dev); \ + _var = platform_get_drvdata(platform_dev); \ + } while (0) +#endif + + +/** + * Helper macro returning the struct dev of the given struct os_dependent + * + * c.f. static struct device *dwc_otg_getdev(struct os_dependent *osdep) + */ +#ifdef LM_INTERFACE +#define DWC_OTG_OS_GETDEV(_osdep) \ + ((_osdep).lmdev == NULL? NULL: &(_osdep).lmdev->dev) +#elif defined(PCI_INTERFACE) +#define DWC_OTG_OS_GETDEV(_osdep) \ + ((_osdep).pci_dev == NULL? NULL: &(_osdep).pci_dev->dev) +#elif defined(PLATFORM_INTERFACE) +#define DWC_OTG_OS_GETDEV(_osdep) \ + ((_osdep).platformdev == NULL? NULL: &(_osdep).platformdev->dev) +#endif + + + + +#endif /* _DWC_OS_DEP_H_ */ diff --git a/drivers/usb/host/dwc_otg/dwc_otg_pcd.c b/drivers/usb/host/dwc_otg/dwc_otg_pcd.c new file mode 100644 index 0000000000000000000000000000000000000000..9dabbe5c9791c5296d1cc7b663afa6ec462173cb --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_pcd.c @@ -0,0 +1,2725 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_pcd.c $ + * $Revision: #101 $ + * $Date: 2012/08/10 $ + * $Change: 2047372 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ +#ifndef DWC_HOST_ONLY + +/** @file + * This file implements PCD Core. All code in this file is portable and doesn't + * use any OS specific functions. + * PCD Core provides Interface, defined in + * header file, which can be used to implement OS specific PCD interface. + * + * An important function of the PCD is managing interrupts generated + * by the DWC_otg controller. The implementation of the DWC_otg device + * mode interrupt service routines is in dwc_otg_pcd_intr.c. + * + * @todo Add Device Mode test modes (Test J mode, Test K mode, etc). + * @todo Does it work when the request size is greater than DEPTSIZ + * transfer size + * + */ + +#include "dwc_otg_pcd.h" + +#ifdef DWC_UTE_CFI +#include "dwc_otg_cfi.h" + +extern int init_cfi(cfiobject_t * cfiobj); +#endif + +/** + * Choose endpoint from ep arrays using usb_ep structure. + */ +static dwc_otg_pcd_ep_t *get_ep_from_handle(dwc_otg_pcd_t * pcd, void *handle) +{ + int i; + if (pcd->ep0.priv == handle) { + return &pcd->ep0; + } + for (i = 0; i < MAX_EPS_CHANNELS - 1; i++) { + if (pcd->in_ep[i].priv == handle) + return &pcd->in_ep[i]; + if (pcd->out_ep[i].priv == handle) + return &pcd->out_ep[i]; + } + + return NULL; +} + +/** + * This function completes a request. It call's the request call back. + */ +void dwc_otg_request_done(dwc_otg_pcd_ep_t * ep, dwc_otg_pcd_request_t * req, + int32_t status) +{ + unsigned stopped = ep->stopped; + + DWC_DEBUGPL(DBG_PCDV, "%s(ep %p req %p)\n", __func__, ep, req); + DWC_CIRCLEQ_REMOVE_INIT(&ep->queue, req, queue_entry); + + /* don't modify queue heads during completion callback */ + ep->stopped = 1; + /* spin_unlock/spin_lock now done in fops->complete() */ + ep->pcd->fops->complete(ep->pcd, ep->priv, req->priv, status, + req->actual); + + if (ep->pcd->request_pending > 0) { + --ep->pcd->request_pending; + } + + ep->stopped = stopped; + DWC_FREE(req); +} + +/** + * This function terminates all the requsts in the EP request queue. + */ +void dwc_otg_request_nuke(dwc_otg_pcd_ep_t * ep) +{ + dwc_otg_pcd_request_t *req; + + ep->stopped = 1; + + /* called with irqs blocked?? */ + while (!DWC_CIRCLEQ_EMPTY(&ep->queue)) { + req = DWC_CIRCLEQ_FIRST(&ep->queue); + dwc_otg_request_done(ep, req, -DWC_E_SHUTDOWN); + } +} + +void dwc_otg_pcd_start(dwc_otg_pcd_t * pcd, + const struct dwc_otg_pcd_function_ops *fops) +{ + pcd->fops = fops; +} + +/** + * PCD Callback function for initializing the PCD when switching to + * device mode. + * + * @param p void pointer to the dwc_otg_pcd_t + */ +static int32_t dwc_otg_pcd_start_cb(void *p) +{ + dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *) p; + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + + /* + * Initialized the Core for Device mode. + */ + if (dwc_otg_is_device_mode(core_if)) { + dwc_otg_core_dev_init(core_if); + /* Set core_if's lock pointer to the pcd->lock */ + core_if->lock = pcd->lock; + } + return 1; +} + +/** CFI-specific buffer allocation function for EP */ +#ifdef DWC_UTE_CFI +uint8_t *cfiw_ep_alloc_buffer(dwc_otg_pcd_t * pcd, void *pep, dwc_dma_t * addr, + size_t buflen, int flags) +{ + dwc_otg_pcd_ep_t *ep; + ep = get_ep_from_handle(pcd, pep); + if (!ep) { + DWC_WARN("bad ep\n"); + return -DWC_E_INVALID; + } + + return pcd->cfi->ops.ep_alloc_buf(pcd->cfi, pcd, ep, addr, buflen, + flags); +} +#else +uint8_t *cfiw_ep_alloc_buffer(dwc_otg_pcd_t * pcd, void *pep, dwc_dma_t * addr, + size_t buflen, int flags); +#endif + +/** + * PCD Callback function for notifying the PCD when resuming from + * suspend. + * + * @param p void pointer to the dwc_otg_pcd_t + */ +static int32_t dwc_otg_pcd_resume_cb(void *p) +{ + dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *) p; + + if (pcd->fops->resume) { + pcd->fops->resume(pcd); + } + + /* Stop the SRP timeout timer. */ + if ((GET_CORE_IF(pcd)->core_params->phy_type != DWC_PHY_TYPE_PARAM_FS) + || (!GET_CORE_IF(pcd)->core_params->i2c_enable)) { + if (GET_CORE_IF(pcd)->srp_timer_started) { + GET_CORE_IF(pcd)->srp_timer_started = 0; + DWC_TIMER_CANCEL(GET_CORE_IF(pcd)->srp_timer); + } + } + return 1; +} + +/** + * PCD Callback function for notifying the PCD device is suspended. + * + * @param p void pointer to the dwc_otg_pcd_t + */ +static int32_t dwc_otg_pcd_suspend_cb(void *p) +{ + dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *) p; + + if (pcd->fops->suspend) { + DWC_SPINUNLOCK(pcd->lock); + pcd->fops->suspend(pcd); + DWC_SPINLOCK(pcd->lock); + } + + return 1; +} + +/** + * PCD Callback function for stopping the PCD when switching to Host + * mode. + * + * @param p void pointer to the dwc_otg_pcd_t + */ +static int32_t dwc_otg_pcd_stop_cb(void *p) +{ + dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *) p; + extern void dwc_otg_pcd_stop(dwc_otg_pcd_t * _pcd); + + dwc_otg_pcd_stop(pcd); + return 1; +} + +/** + * PCD Callback structure for handling mode switching. + */ +static dwc_otg_cil_callbacks_t pcd_callbacks = { + .start = dwc_otg_pcd_start_cb, + .stop = dwc_otg_pcd_stop_cb, + .suspend = dwc_otg_pcd_suspend_cb, + .resume_wakeup = dwc_otg_pcd_resume_cb, + .p = 0, /* Set at registration */ +}; + +/** + * This function allocates a DMA Descriptor chain for the Endpoint + * buffer to be used for a transfer to/from the specified endpoint. + */ +dwc_otg_dev_dma_desc_t *dwc_otg_ep_alloc_desc_chain(struct device *dev, + dwc_dma_t * dma_desc_addr, + uint32_t count) +{ + return DWC_DMA_ALLOC_ATOMIC(dev, count * sizeof(dwc_otg_dev_dma_desc_t), + dma_desc_addr); +} + +/** + * This function frees a DMA Descriptor chain that was allocated by ep_alloc_desc. + */ +void dwc_otg_ep_free_desc_chain(struct device *dev, + dwc_otg_dev_dma_desc_t * desc_addr, + uint32_t dma_desc_addr, uint32_t count) +{ + DWC_DMA_FREE(dev, count * sizeof(dwc_otg_dev_dma_desc_t), desc_addr, + dma_desc_addr); +} + +#ifdef DWC_EN_ISOC + +/** + * This function initializes a descriptor chain for Isochronous transfer + * + * @param core_if Programming view of DWC_otg controller. + * @param dwc_ep The EP to start the transfer on. + * + */ +void dwc_otg_iso_ep_start_ddma_transfer(dwc_otg_core_if_t * core_if, + dwc_ep_t * dwc_ep) +{ + + dsts_data_t dsts = {.d32 = 0 }; + depctl_data_t depctl = {.d32 = 0 }; + volatile uint32_t *addr; + int i, j; + uint32_t len; + + if (dwc_ep->is_in) + dwc_ep->desc_cnt = dwc_ep->buf_proc_intrvl / dwc_ep->bInterval; + else + dwc_ep->desc_cnt = + dwc_ep->buf_proc_intrvl * dwc_ep->pkt_per_frm / + dwc_ep->bInterval; + + /** Allocate descriptors for double buffering */ + dwc_ep->iso_desc_addr = + dwc_otg_ep_alloc_desc_chain(&dwc_ep->iso_dma_desc_addr, + dwc_ep->desc_cnt * 2); + if (dwc_ep->desc_addr) { + DWC_WARN("%s, can't allocate DMA descriptor chain\n", __func__); + return; + } + + dsts.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dsts); + + /** ISO OUT EP */ + if (dwc_ep->is_in == 0) { + dev_dma_desc_sts_t sts = {.d32 = 0 }; + dwc_otg_dev_dma_desc_t *dma_desc = dwc_ep->iso_desc_addr; + dma_addr_t dma_ad; + uint32_t data_per_desc; + dwc_otg_dev_out_ep_regs_t *out_regs = + core_if->dev_if->out_ep_regs[dwc_ep->num]; + int offset; + + addr = &core_if->dev_if->out_ep_regs[dwc_ep->num]->doepctl; + dma_ad = (dma_addr_t) DWC_READ_REG32(&(out_regs->doepdma)); + + /** Buffer 0 descriptors setup */ + dma_ad = dwc_ep->dma_addr0; + + sts.b_iso_out.bs = BS_HOST_READY; + sts.b_iso_out.rxsts = 0; + sts.b_iso_out.l = 0; + sts.b_iso_out.sp = 0; + sts.b_iso_out.ioc = 0; + sts.b_iso_out.pid = 0; + sts.b_iso_out.framenum = 0; + + offset = 0; + for (i = 0; i < dwc_ep->desc_cnt - dwc_ep->pkt_per_frm; + i += dwc_ep->pkt_per_frm) { + + for (j = 0; j < dwc_ep->pkt_per_frm; ++j) { + uint32_t len = (j + 1) * dwc_ep->maxpacket; + if (len > dwc_ep->data_per_frame) + data_per_desc = + dwc_ep->data_per_frame - + j * dwc_ep->maxpacket; + else + data_per_desc = dwc_ep->maxpacket; + len = data_per_desc % 4; + if (len) + data_per_desc += 4 - len; + + sts.b_iso_out.rxbytes = data_per_desc; + dma_desc->buf = dma_ad; + dma_desc->status.d32 = sts.d32; + + offset += data_per_desc; + dma_desc++; + dma_ad += data_per_desc; + } + } + + for (j = 0; j < dwc_ep->pkt_per_frm - 1; ++j) { + uint32_t len = (j + 1) * dwc_ep->maxpacket; + if (len > dwc_ep->data_per_frame) + data_per_desc = + dwc_ep->data_per_frame - + j * dwc_ep->maxpacket; + else + data_per_desc = dwc_ep->maxpacket; + len = data_per_desc % 4; + if (len) + data_per_desc += 4 - len; + sts.b_iso_out.rxbytes = data_per_desc; + dma_desc->buf = dma_ad; + dma_desc->status.d32 = sts.d32; + + offset += data_per_desc; + dma_desc++; + dma_ad += data_per_desc; + } + + sts.b_iso_out.ioc = 1; + len = (j + 1) * dwc_ep->maxpacket; + if (len > dwc_ep->data_per_frame) + data_per_desc = + dwc_ep->data_per_frame - j * dwc_ep->maxpacket; + else + data_per_desc = dwc_ep->maxpacket; + len = data_per_desc % 4; + if (len) + data_per_desc += 4 - len; + sts.b_iso_out.rxbytes = data_per_desc; + + dma_desc->buf = dma_ad; + dma_desc->status.d32 = sts.d32; + dma_desc++; + + /** Buffer 1 descriptors setup */ + sts.b_iso_out.ioc = 0; + dma_ad = dwc_ep->dma_addr1; + + offset = 0; + for (i = 0; i < dwc_ep->desc_cnt - dwc_ep->pkt_per_frm; + i += dwc_ep->pkt_per_frm) { + for (j = 0; j < dwc_ep->pkt_per_frm; ++j) { + uint32_t len = (j + 1) * dwc_ep->maxpacket; + if (len > dwc_ep->data_per_frame) + data_per_desc = + dwc_ep->data_per_frame - + j * dwc_ep->maxpacket; + else + data_per_desc = dwc_ep->maxpacket; + len = data_per_desc % 4; + if (len) + data_per_desc += 4 - len; + + data_per_desc = + sts.b_iso_out.rxbytes = data_per_desc; + dma_desc->buf = dma_ad; + dma_desc->status.d32 = sts.d32; + + offset += data_per_desc; + dma_desc++; + dma_ad += data_per_desc; + } + } + for (j = 0; j < dwc_ep->pkt_per_frm - 1; ++j) { + data_per_desc = + ((j + 1) * dwc_ep->maxpacket > + dwc_ep->data_per_frame) ? dwc_ep->data_per_frame - + j * dwc_ep->maxpacket : dwc_ep->maxpacket; + data_per_desc += + (data_per_desc % 4) ? (4 - data_per_desc % 4) : 0; + sts.b_iso_out.rxbytes = data_per_desc; + dma_desc->buf = dma_ad; + dma_desc->status.d32 = sts.d32; + + offset += data_per_desc; + dma_desc++; + dma_ad += data_per_desc; + } + + sts.b_iso_out.ioc = 1; + sts.b_iso_out.l = 1; + data_per_desc = + ((j + 1) * dwc_ep->maxpacket > + dwc_ep->data_per_frame) ? dwc_ep->data_per_frame - + j * dwc_ep->maxpacket : dwc_ep->maxpacket; + data_per_desc += + (data_per_desc % 4) ? (4 - data_per_desc % 4) : 0; + sts.b_iso_out.rxbytes = data_per_desc; + + dma_desc->buf = dma_ad; + dma_desc->status.d32 = sts.d32; + + dwc_ep->next_frame = 0; + + /** Write dma_ad into DOEPDMA register */ + DWC_WRITE_REG32(&(out_regs->doepdma), + (uint32_t) dwc_ep->iso_dma_desc_addr); + + } + /** ISO IN EP */ + else { + dev_dma_desc_sts_t sts = {.d32 = 0 }; + dwc_otg_dev_dma_desc_t *dma_desc = dwc_ep->iso_desc_addr; + dma_addr_t dma_ad; + dwc_otg_dev_in_ep_regs_t *in_regs = + core_if->dev_if->in_ep_regs[dwc_ep->num]; + unsigned int frmnumber; + fifosize_data_t txfifosize, rxfifosize; + + txfifosize.d32 = + DWC_READ_REG32(&core_if->dev_if->in_ep_regs[dwc_ep->num]-> + dtxfsts); + rxfifosize.d32 = + DWC_READ_REG32(&core_if->core_global_regs->grxfsiz); + + addr = &core_if->dev_if->in_ep_regs[dwc_ep->num]->diepctl; + + dma_ad = dwc_ep->dma_addr0; + + dsts.d32 = + DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dsts); + + sts.b_iso_in.bs = BS_HOST_READY; + sts.b_iso_in.txsts = 0; + sts.b_iso_in.sp = + (dwc_ep->data_per_frame % dwc_ep->maxpacket) ? 1 : 0; + sts.b_iso_in.ioc = 0; + sts.b_iso_in.pid = dwc_ep->pkt_per_frm; + + frmnumber = dwc_ep->next_frame; + + sts.b_iso_in.framenum = frmnumber; + sts.b_iso_in.txbytes = dwc_ep->data_per_frame; + sts.b_iso_in.l = 0; + + /** Buffer 0 descriptors setup */ + for (i = 0; i < dwc_ep->desc_cnt - 1; i++) { + dma_desc->buf = dma_ad; + dma_desc->status.d32 = sts.d32; + dma_desc++; + + dma_ad += dwc_ep->data_per_frame; + sts.b_iso_in.framenum += dwc_ep->bInterval; + } + + sts.b_iso_in.ioc = 1; + dma_desc->buf = dma_ad; + dma_desc->status.d32 = sts.d32; + ++dma_desc; + + /** Buffer 1 descriptors setup */ + sts.b_iso_in.ioc = 0; + dma_ad = dwc_ep->dma_addr1; + + for (i = 0; i < dwc_ep->desc_cnt - dwc_ep->pkt_per_frm; + i += dwc_ep->pkt_per_frm) { + dma_desc->buf = dma_ad; + dma_desc->status.d32 = sts.d32; + dma_desc++; + + dma_ad += dwc_ep->data_per_frame; + sts.b_iso_in.framenum += dwc_ep->bInterval; + + sts.b_iso_in.ioc = 0; + } + sts.b_iso_in.ioc = 1; + sts.b_iso_in.l = 1; + + dma_desc->buf = dma_ad; + dma_desc->status.d32 = sts.d32; + + dwc_ep->next_frame = sts.b_iso_in.framenum + dwc_ep->bInterval; + + /** Write dma_ad into diepdma register */ + DWC_WRITE_REG32(&(in_regs->diepdma), + (uint32_t) dwc_ep->iso_dma_desc_addr); + } + /** Enable endpoint, clear nak */ + depctl.d32 = 0; + depctl.b.epena = 1; + depctl.b.usbactep = 1; + depctl.b.cnak = 1; + + DWC_MODIFY_REG32(addr, depctl.d32, depctl.d32); + depctl.d32 = DWC_READ_REG32(addr); +} + +/** + * This function initializes a descriptor chain for Isochronous transfer + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to start the transfer on. + * + */ +void dwc_otg_iso_ep_start_buf_transfer(dwc_otg_core_if_t * core_if, + dwc_ep_t * ep) +{ + depctl_data_t depctl = {.d32 = 0 }; + volatile uint32_t *addr; + + if (ep->is_in) { + addr = &core_if->dev_if->in_ep_regs[ep->num]->diepctl; + } else { + addr = &core_if->dev_if->out_ep_regs[ep->num]->doepctl; + } + + if (core_if->dma_enable == 0 || core_if->dma_desc_enable != 0) { + return; + } else { + deptsiz_data_t deptsiz = {.d32 = 0 }; + + ep->xfer_len = + ep->data_per_frame * ep->buf_proc_intrvl / ep->bInterval; + ep->pkt_cnt = + (ep->xfer_len - 1 + ep->maxpacket) / ep->maxpacket; + ep->xfer_count = 0; + ep->xfer_buff = + (ep->proc_buf_num) ? ep->xfer_buff1 : ep->xfer_buff0; + ep->dma_addr = + (ep->proc_buf_num) ? ep->dma_addr1 : ep->dma_addr0; + + if (ep->is_in) { + /* Program the transfer size and packet count + * as follows: xfersize = N * maxpacket + + * short_packet pktcnt = N + (short_packet + * exist ? 1 : 0) + */ + deptsiz.b.mc = ep->pkt_per_frm; + deptsiz.b.xfersize = ep->xfer_len; + deptsiz.b.pktcnt = + (ep->xfer_len - 1 + ep->maxpacket) / ep->maxpacket; + DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[ep->num]-> + dieptsiz, deptsiz.d32); + + /* Write the DMA register */ + DWC_WRITE_REG32(& + (core_if->dev_if->in_ep_regs[ep->num]-> + diepdma), (uint32_t) ep->dma_addr); + + } else { + deptsiz.b.pktcnt = + (ep->xfer_len + (ep->maxpacket - 1)) / + ep->maxpacket; + deptsiz.b.xfersize = deptsiz.b.pktcnt * ep->maxpacket; + + DWC_WRITE_REG32(&core_if->dev_if->out_ep_regs[ep->num]-> + doeptsiz, deptsiz.d32); + + /* Write the DMA register */ + DWC_WRITE_REG32(& + (core_if->dev_if->out_ep_regs[ep->num]-> + doepdma), (uint32_t) ep->dma_addr); + + } + /** Enable endpoint, clear nak */ + depctl.d32 = 0; + depctl.b.epena = 1; + depctl.b.cnak = 1; + + DWC_MODIFY_REG32(addr, depctl.d32, depctl.d32); + } +} + +/** + * This function does the setup for a data transfer for an EP and + * starts the transfer. For an IN transfer, the packets will be + * loaded into the appropriate Tx FIFO in the ISR. For OUT transfers, + * the packets are unloaded from the Rx FIFO in the ISR. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to start the transfer on. + */ + +static void dwc_otg_iso_ep_start_transfer(dwc_otg_core_if_t * core_if, + dwc_ep_t * ep) +{ + if (core_if->dma_enable) { + if (core_if->dma_desc_enable) { + if (ep->is_in) { + ep->desc_cnt = ep->pkt_cnt / ep->pkt_per_frm; + } else { + ep->desc_cnt = ep->pkt_cnt; + } + dwc_otg_iso_ep_start_ddma_transfer(core_if, ep); + } else { + if (core_if->pti_enh_enable) { + dwc_otg_iso_ep_start_buf_transfer(core_if, ep); + } else { + ep->cur_pkt_addr = + (ep->proc_buf_num) ? ep->xfer_buff1 : ep-> + xfer_buff0; + ep->cur_pkt_dma_addr = + (ep->proc_buf_num) ? ep->dma_addr1 : ep-> + dma_addr0; + dwc_otg_iso_ep_start_frm_transfer(core_if, ep); + } + } + } else { + ep->cur_pkt_addr = + (ep->proc_buf_num) ? ep->xfer_buff1 : ep->xfer_buff0; + ep->cur_pkt_dma_addr = + (ep->proc_buf_num) ? ep->dma_addr1 : ep->dma_addr0; + dwc_otg_iso_ep_start_frm_transfer(core_if, ep); + } +} + +/** + * This function stops transfer for an EP and + * resets the ep's variables. + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to start the transfer on. + */ + +void dwc_otg_iso_ep_stop_transfer(dwc_otg_core_if_t * core_if, dwc_ep_t * ep) +{ + depctl_data_t depctl = {.d32 = 0 }; + volatile uint32_t *addr; + + if (ep->is_in == 1) { + addr = &core_if->dev_if->in_ep_regs[ep->num]->diepctl; + } else { + addr = &core_if->dev_if->out_ep_regs[ep->num]->doepctl; + } + + /* disable the ep */ + depctl.d32 = DWC_READ_REG32(addr); + + depctl.b.epdis = 1; + depctl.b.snak = 1; + + DWC_WRITE_REG32(addr, depctl.d32); + + if (core_if->dma_desc_enable && + ep->iso_desc_addr && ep->iso_dma_desc_addr) { + dwc_otg_ep_free_desc_chain(ep->iso_desc_addr, + ep->iso_dma_desc_addr, + ep->desc_cnt * 2); + } + + /* reset varibales */ + ep->dma_addr0 = 0; + ep->dma_addr1 = 0; + ep->xfer_buff0 = 0; + ep->xfer_buff1 = 0; + ep->data_per_frame = 0; + ep->data_pattern_frame = 0; + ep->sync_frame = 0; + ep->buf_proc_intrvl = 0; + ep->bInterval = 0; + ep->proc_buf_num = 0; + ep->pkt_per_frm = 0; + ep->pkt_per_frm = 0; + ep->desc_cnt = 0; + ep->iso_desc_addr = 0; + ep->iso_dma_desc_addr = 0; +} + +int dwc_otg_pcd_iso_ep_start(dwc_otg_pcd_t * pcd, void *ep_handle, + uint8_t * buf0, uint8_t * buf1, dwc_dma_t dma0, + dwc_dma_t dma1, int sync_frame, int dp_frame, + int data_per_frame, int start_frame, + int buf_proc_intrvl, void *req_handle, + int atomic_alloc) +{ + dwc_otg_pcd_ep_t *ep; + dwc_irqflags_t flags = 0; + dwc_ep_t *dwc_ep; + int32_t frm_data; + dsts_data_t dsts; + dwc_otg_core_if_t *core_if; + + ep = get_ep_from_handle(pcd, ep_handle); + + if (!ep || !ep->desc || ep->dwc_ep.num == 0) { + DWC_WARN("bad ep\n"); + return -DWC_E_INVALID; + } + + DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags); + core_if = GET_CORE_IF(pcd); + dwc_ep = &ep->dwc_ep; + + if (ep->iso_req_handle) { + DWC_WARN("ISO request in progress\n"); + } + + dwc_ep->dma_addr0 = dma0; + dwc_ep->dma_addr1 = dma1; + + dwc_ep->xfer_buff0 = buf0; + dwc_ep->xfer_buff1 = buf1; + + dwc_ep->data_per_frame = data_per_frame; + + /** @todo - pattern data support is to be implemented in the future */ + dwc_ep->data_pattern_frame = dp_frame; + dwc_ep->sync_frame = sync_frame; + + dwc_ep->buf_proc_intrvl = buf_proc_intrvl; + + dwc_ep->bInterval = 1 << (ep->desc->bInterval - 1); + + dwc_ep->proc_buf_num = 0; + + dwc_ep->pkt_per_frm = 0; + frm_data = ep->dwc_ep.data_per_frame; + while (frm_data > 0) { + dwc_ep->pkt_per_frm++; + frm_data -= ep->dwc_ep.maxpacket; + } + + dsts.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dsts); + + if (start_frame == -1) { + dwc_ep->next_frame = dsts.b.soffn + 1; + if (dwc_ep->bInterval != 1) { + dwc_ep->next_frame = + dwc_ep->next_frame + (dwc_ep->bInterval - 1 - + dwc_ep->next_frame % + dwc_ep->bInterval); + } + } else { + dwc_ep->next_frame = start_frame; + } + + if (!core_if->pti_enh_enable) { + dwc_ep->pkt_cnt = + dwc_ep->buf_proc_intrvl * dwc_ep->pkt_per_frm / + dwc_ep->bInterval; + } else { + dwc_ep->pkt_cnt = + (dwc_ep->data_per_frame * + (dwc_ep->buf_proc_intrvl / dwc_ep->bInterval) + - 1 + dwc_ep->maxpacket) / dwc_ep->maxpacket; + } + + if (core_if->dma_desc_enable) { + dwc_ep->desc_cnt = + dwc_ep->buf_proc_intrvl * dwc_ep->pkt_per_frm / + dwc_ep->bInterval; + } + + if (atomic_alloc) { + dwc_ep->pkt_info = + DWC_ALLOC_ATOMIC(sizeof(iso_pkt_info_t) * dwc_ep->pkt_cnt); + } else { + dwc_ep->pkt_info = + DWC_ALLOC(sizeof(iso_pkt_info_t) * dwc_ep->pkt_cnt); + } + if (!dwc_ep->pkt_info) { + DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags); + return -DWC_E_NO_MEMORY; + } + if (core_if->pti_enh_enable) { + dwc_memset(dwc_ep->pkt_info, 0, + sizeof(iso_pkt_info_t) * dwc_ep->pkt_cnt); + } + + dwc_ep->cur_pkt = 0; + ep->iso_req_handle = req_handle; + + DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags); + dwc_otg_iso_ep_start_transfer(core_if, dwc_ep); + return 0; +} + +int dwc_otg_pcd_iso_ep_stop(dwc_otg_pcd_t * pcd, void *ep_handle, + void *req_handle) +{ + dwc_irqflags_t flags = 0; + dwc_otg_pcd_ep_t *ep; + dwc_ep_t *dwc_ep; + + ep = get_ep_from_handle(pcd, ep_handle); + if (!ep || !ep->desc || ep->dwc_ep.num == 0) { + DWC_WARN("bad ep\n"); + return -DWC_E_INVALID; + } + dwc_ep = &ep->dwc_ep; + + dwc_otg_iso_ep_stop_transfer(GET_CORE_IF(pcd), dwc_ep); + + DWC_FREE(dwc_ep->pkt_info); + DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags); + if (ep->iso_req_handle != req_handle) { + DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags); + return -DWC_E_INVALID; + } + + DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags); + + ep->iso_req_handle = 0; + return 0; +} + +/** + * This function is used for perodical data exchnage between PCD and gadget drivers. + * for Isochronous EPs + * + * - Every time a sync period completes this function is called to + * perform data exchange between PCD and gadget + */ +void dwc_otg_iso_buffer_done(dwc_otg_pcd_t * pcd, dwc_otg_pcd_ep_t * ep, + void *req_handle) +{ + int i; + dwc_ep_t *dwc_ep; + + dwc_ep = &ep->dwc_ep; + + DWC_SPINUNLOCK(ep->pcd->lock); + pcd->fops->isoc_complete(pcd, ep->priv, ep->iso_req_handle, + dwc_ep->proc_buf_num ^ 0x1); + DWC_SPINLOCK(ep->pcd->lock); + + for (i = 0; i < dwc_ep->pkt_cnt; ++i) { + dwc_ep->pkt_info[i].status = 0; + dwc_ep->pkt_info[i].offset = 0; + dwc_ep->pkt_info[i].length = 0; + } +} + +int dwc_otg_pcd_get_iso_packet_count(dwc_otg_pcd_t * pcd, void *ep_handle, + void *iso_req_handle) +{ + dwc_otg_pcd_ep_t *ep; + dwc_ep_t *dwc_ep; + + ep = get_ep_from_handle(pcd, ep_handle); + if (!ep->desc || ep->dwc_ep.num == 0) { + DWC_WARN("bad ep\n"); + return -DWC_E_INVALID; + } + dwc_ep = &ep->dwc_ep; + + return dwc_ep->pkt_cnt; +} + +void dwc_otg_pcd_get_iso_packet_params(dwc_otg_pcd_t * pcd, void *ep_handle, + void *iso_req_handle, int packet, + int *status, int *actual, int *offset) +{ + dwc_otg_pcd_ep_t *ep; + dwc_ep_t *dwc_ep; + + ep = get_ep_from_handle(pcd, ep_handle); + if (!ep) + DWC_WARN("bad ep\n"); + + dwc_ep = &ep->dwc_ep; + + *status = dwc_ep->pkt_info[packet].status; + *actual = dwc_ep->pkt_info[packet].length; + *offset = dwc_ep->pkt_info[packet].offset; +} + +#endif /* DWC_EN_ISOC */ + +static void dwc_otg_pcd_init_ep(dwc_otg_pcd_t * pcd, dwc_otg_pcd_ep_t * pcd_ep, + uint32_t is_in, uint32_t ep_num) +{ + /* Init EP structure */ + pcd_ep->desc = 0; + pcd_ep->pcd = pcd; + pcd_ep->stopped = 1; + pcd_ep->queue_sof = 0; + + /* Init DWC ep structure */ + pcd_ep->dwc_ep.is_in = is_in; + pcd_ep->dwc_ep.num = ep_num; + pcd_ep->dwc_ep.active = 0; + pcd_ep->dwc_ep.tx_fifo_num = 0; + /* Control until ep is actvated */ + pcd_ep->dwc_ep.type = DWC_OTG_EP_TYPE_CONTROL; + pcd_ep->dwc_ep.maxpacket = MAX_PACKET_SIZE; + pcd_ep->dwc_ep.dma_addr = 0; + pcd_ep->dwc_ep.start_xfer_buff = 0; + pcd_ep->dwc_ep.xfer_buff = 0; + pcd_ep->dwc_ep.xfer_len = 0; + pcd_ep->dwc_ep.xfer_count = 0; + pcd_ep->dwc_ep.sent_zlp = 0; + pcd_ep->dwc_ep.total_len = 0; + pcd_ep->dwc_ep.desc_addr = 0; + pcd_ep->dwc_ep.dma_desc_addr = 0; + DWC_CIRCLEQ_INIT(&pcd_ep->queue); +} + +/** + * Initialize ep's + */ +static void dwc_otg_pcd_reinit(dwc_otg_pcd_t * pcd) +{ + int i; + uint32_t hwcfg1; + dwc_otg_pcd_ep_t *ep; + int in_ep_cntr, out_ep_cntr; + uint32_t num_in_eps = (GET_CORE_IF(pcd))->dev_if->num_in_eps; + uint32_t num_out_eps = (GET_CORE_IF(pcd))->dev_if->num_out_eps; + + /** + * Initialize the EP0 structure. + */ + ep = &pcd->ep0; + dwc_otg_pcd_init_ep(pcd, ep, 0, 0); + + in_ep_cntr = 0; + hwcfg1 = (GET_CORE_IF(pcd))->hwcfg1.d32 >> 3; + for (i = 1; in_ep_cntr < num_in_eps; i++) { + if ((hwcfg1 & 0x1) == 0) { + dwc_otg_pcd_ep_t *ep = &pcd->in_ep[in_ep_cntr]; + in_ep_cntr++; + /** + * @todo NGS: Add direction to EP, based on contents + * of HWCFG1. Need a copy of HWCFG1 in pcd structure? + * sprintf(";r + */ + dwc_otg_pcd_init_ep(pcd, ep, 1 /* IN */ , i); + + DWC_CIRCLEQ_INIT(&ep->queue); + } + hwcfg1 >>= 2; + } + + out_ep_cntr = 0; + hwcfg1 = (GET_CORE_IF(pcd))->hwcfg1.d32 >> 2; + for (i = 1; out_ep_cntr < num_out_eps; i++) { + if ((hwcfg1 & 0x1) == 0) { + dwc_otg_pcd_ep_t *ep = &pcd->out_ep[out_ep_cntr]; + out_ep_cntr++; + /** + * @todo NGS: Add direction to EP, based on contents + * of HWCFG1. Need a copy of HWCFG1 in pcd structure? + * sprintf(";r + */ + dwc_otg_pcd_init_ep(pcd, ep, 0 /* OUT */ , i); + DWC_CIRCLEQ_INIT(&ep->queue); + } + hwcfg1 >>= 2; + } + + pcd->ep0state = EP0_DISCONNECT; + pcd->ep0.dwc_ep.maxpacket = MAX_EP0_SIZE; + pcd->ep0.dwc_ep.type = DWC_OTG_EP_TYPE_CONTROL; +} + +/** + * This function is called when the SRP timer expires. The SRP should + * complete within 6 seconds. + */ +static void srp_timeout(void *ptr) +{ + gotgctl_data_t gotgctl; + dwc_otg_core_if_t *core_if = (dwc_otg_core_if_t *) ptr; + volatile uint32_t *addr = &core_if->core_global_regs->gotgctl; + + gotgctl.d32 = DWC_READ_REG32(addr); + + core_if->srp_timer_started = 0; + + if (core_if->adp_enable) { + if (gotgctl.b.bsesvld == 0) { + gpwrdn_data_t gpwrdn = {.d32 = 0 }; + DWC_PRINTF("SRP Timeout BSESSVLD = 0\n"); + /* Power off the core */ + if (core_if->power_down == 2) { + gpwrdn.b.pwrdnswtch = 1; + DWC_MODIFY_REG32(&core_if-> + core_global_regs->gpwrdn, + gpwrdn.d32, 0); + } + + gpwrdn.d32 = 0; + gpwrdn.b.pmuintsel = 1; + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, + gpwrdn.d32); + dwc_otg_adp_probe_start(core_if); + } else { + DWC_PRINTF("SRP Timeout BSESSVLD = 1\n"); + core_if->op_state = B_PERIPHERAL; + dwc_otg_core_init(core_if); + dwc_otg_enable_global_interrupts(core_if); + cil_pcd_start(core_if); + } + } + + if ((core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS) && + (core_if->core_params->i2c_enable)) { + DWC_PRINTF("SRP Timeout\n"); + + if ((core_if->srp_success) && (gotgctl.b.bsesvld)) { + if (core_if->pcd_cb && core_if->pcd_cb->resume_wakeup) { + core_if->pcd_cb->resume_wakeup(core_if->pcd_cb->p); + } + + /* Clear Session Request */ + gotgctl.d32 = 0; + gotgctl.b.sesreq = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gotgctl, + gotgctl.d32, 0); + + core_if->srp_success = 0; + } else { + __DWC_ERROR("Device not connected/responding\n"); + gotgctl.b.sesreq = 0; + DWC_WRITE_REG32(addr, gotgctl.d32); + } + } else if (gotgctl.b.sesreq) { + DWC_PRINTF("SRP Timeout\n"); + + __DWC_ERROR("Device not connected/responding\n"); + gotgctl.b.sesreq = 0; + DWC_WRITE_REG32(addr, gotgctl.d32); + } else { + DWC_PRINTF(" SRP GOTGCTL=%0x\n", gotgctl.d32); + } +} + +/** + * Tasklet + * + */ +extern void start_next_request(dwc_otg_pcd_ep_t * ep); + +static void start_xfer_tasklet_func(void *data) +{ + dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *) data; + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + + int i; + depctl_data_t diepctl; + + DWC_DEBUGPL(DBG_PCDV, "Start xfer tasklet\n"); + + diepctl.d32 = DWC_READ_REG32(&core_if->dev_if->in_ep_regs[0]->diepctl); + + if (pcd->ep0.queue_sof) { + pcd->ep0.queue_sof = 0; + start_next_request(&pcd->ep0); + // break; + } + + for (i = 0; i < core_if->dev_if->num_in_eps; i++) { + depctl_data_t diepctl; + diepctl.d32 = + DWC_READ_REG32(&core_if->dev_if->in_ep_regs[i]->diepctl); + + if (pcd->in_ep[i].queue_sof) { + pcd->in_ep[i].queue_sof = 0; + start_next_request(&pcd->in_ep[i]); + // break; + } + } + + return; +} + +/** + * This function initialized the PCD portion of the driver. + * + */ +dwc_otg_pcd_t *dwc_otg_pcd_init(dwc_otg_device_t *otg_dev) +{ + struct device *dev = &otg_dev->os_dep.platformdev->dev; + dwc_otg_core_if_t *core_if = otg_dev->core_if; + dwc_otg_pcd_t *pcd = NULL; + dwc_otg_dev_if_t *dev_if; + int i; + + /* + * Allocate PCD structure + */ + pcd = DWC_ALLOC(sizeof(dwc_otg_pcd_t)); + + if (pcd == NULL) { + return NULL; + } + +#if (defined(DWC_LINUX) && defined(CONFIG_DEBUG_SPINLOCK)) + DWC_SPINLOCK_ALLOC_LINUX_DEBUG(pcd->lock); +#else + pcd->lock = DWC_SPINLOCK_ALLOC(); +#endif + DWC_DEBUGPL(DBG_HCDV, "Init of PCD %p given core_if %p\n", + pcd, core_if);//GRAYG + if (!pcd->lock) { + DWC_ERROR("Could not allocate lock for pcd"); + DWC_FREE(pcd); + return NULL; + } + /* Set core_if's lock pointer to hcd->lock */ + core_if->lock = pcd->lock; + pcd->core_if = core_if; + + dev_if = core_if->dev_if; + dev_if->isoc_ep = NULL; + + if (core_if->hwcfg4.b.ded_fifo_en) { + DWC_PRINTF("Dedicated Tx FIFOs mode\n"); + } else { + DWC_PRINTF("Shared Tx FIFO mode\n"); + } + + /* + * Initialized the Core for Device mode here if there is nod ADP support. + * Otherwise it will be done later in dwc_otg_adp_start routine. + */ + if (dwc_otg_is_device_mode(core_if) /*&& !core_if->adp_enable*/) { + dwc_otg_core_dev_init(core_if); + } + + /* + * Register the PCD Callbacks. + */ + dwc_otg_cil_register_pcd_callbacks(core_if, &pcd_callbacks, pcd); + + /* + * Initialize the DMA buffer for SETUP packets + */ + if (GET_CORE_IF(pcd)->dma_enable) { + pcd->setup_pkt = + DWC_DMA_ALLOC(dev, sizeof(*pcd->setup_pkt) * 5, + &pcd->setup_pkt_dma_handle); + if (pcd->setup_pkt == NULL) { + DWC_FREE(pcd); + return NULL; + } + + pcd->status_buf = + DWC_DMA_ALLOC(dev, sizeof(uint16_t), + &pcd->status_buf_dma_handle); + if (pcd->status_buf == NULL) { + DWC_DMA_FREE(dev, sizeof(*pcd->setup_pkt) * 5, + pcd->setup_pkt, pcd->setup_pkt_dma_handle); + DWC_FREE(pcd); + return NULL; + } + + if (GET_CORE_IF(pcd)->dma_desc_enable) { + dev_if->setup_desc_addr[0] = + dwc_otg_ep_alloc_desc_chain(dev, + &dev_if->dma_setup_desc_addr[0], 1); + dev_if->setup_desc_addr[1] = + dwc_otg_ep_alloc_desc_chain(dev, + &dev_if->dma_setup_desc_addr[1], 1); + dev_if->in_desc_addr = + dwc_otg_ep_alloc_desc_chain(dev, + &dev_if->dma_in_desc_addr, 1); + dev_if->out_desc_addr = + dwc_otg_ep_alloc_desc_chain(dev, + &dev_if->dma_out_desc_addr, 1); + pcd->data_terminated = 0; + + if (dev_if->setup_desc_addr[0] == 0 + || dev_if->setup_desc_addr[1] == 0 + || dev_if->in_desc_addr == 0 + || dev_if->out_desc_addr == 0) { + + if (dev_if->out_desc_addr) + dwc_otg_ep_free_desc_chain(dev, + dev_if->out_desc_addr, + dev_if->dma_out_desc_addr, 1); + if (dev_if->in_desc_addr) + dwc_otg_ep_free_desc_chain(dev, + dev_if->in_desc_addr, + dev_if->dma_in_desc_addr, 1); + if (dev_if->setup_desc_addr[1]) + dwc_otg_ep_free_desc_chain(dev, + dev_if->setup_desc_addr[1], + dev_if->dma_setup_desc_addr[1], 1); + if (dev_if->setup_desc_addr[0]) + dwc_otg_ep_free_desc_chain(dev, + dev_if->setup_desc_addr[0], + dev_if->dma_setup_desc_addr[0], 1); + + DWC_DMA_FREE(dev, sizeof(*pcd->setup_pkt) * 5, + pcd->setup_pkt, + pcd->setup_pkt_dma_handle); + DWC_DMA_FREE(dev, sizeof(*pcd->status_buf), + pcd->status_buf, + pcd->status_buf_dma_handle); + + DWC_FREE(pcd); + + return NULL; + } + } + } else { + pcd->setup_pkt = DWC_ALLOC(sizeof(*pcd->setup_pkt) * 5); + if (pcd->setup_pkt == NULL) { + DWC_FREE(pcd); + return NULL; + } + + pcd->status_buf = DWC_ALLOC(sizeof(uint16_t)); + if (pcd->status_buf == NULL) { + DWC_FREE(pcd->setup_pkt); + DWC_FREE(pcd); + return NULL; + } + } + + dwc_otg_pcd_reinit(pcd); + + /* Allocate the cfi object for the PCD */ +#ifdef DWC_UTE_CFI + pcd->cfi = DWC_ALLOC(sizeof(cfiobject_t)); + if (NULL == pcd->cfi) + goto fail; + if (init_cfi(pcd->cfi)) { + CFI_INFO("%s: Failed to init the CFI object\n", __func__); + goto fail; + } +#endif + + /* Initialize tasklets */ + pcd->start_xfer_tasklet = DWC_TASK_ALLOC("xfer_tasklet", + start_xfer_tasklet_func, pcd); + pcd->test_mode_tasklet = DWC_TASK_ALLOC("test_mode_tasklet", + do_test_mode, pcd); + + /* Initialize SRP timer */ + core_if->srp_timer = DWC_TIMER_ALLOC("SRP TIMER", srp_timeout, core_if); + + if (core_if->core_params->dev_out_nak) { + /** + * Initialize xfer timeout timer. Implemented for + * 2.93a feature "Device DDMA OUT NAK Enhancement" + */ + for(i = 0; i < MAX_EPS_CHANNELS; i++) { + pcd->core_if->ep_xfer_timer[i] = + DWC_TIMER_ALLOC("ep timer", ep_xfer_timeout, + &pcd->core_if->ep_xfer_info[i]); + } + } + + return pcd; +#ifdef DWC_UTE_CFI +fail: +#endif + if (pcd->setup_pkt) + DWC_FREE(pcd->setup_pkt); + if (pcd->status_buf) + DWC_FREE(pcd->status_buf); +#ifdef DWC_UTE_CFI + if (pcd->cfi) + DWC_FREE(pcd->cfi); +#endif + if (pcd) + DWC_FREE(pcd); + return NULL; + +} + +/** + * Remove PCD specific data + */ +void dwc_otg_pcd_remove(dwc_otg_pcd_t * pcd) +{ + dwc_otg_dev_if_t *dev_if = GET_CORE_IF(pcd)->dev_if; + struct device *dev = dwc_otg_pcd_to_dev(pcd); + int i; + + if (pcd->core_if->core_params->dev_out_nak) { + for (i = 0; i < MAX_EPS_CHANNELS; i++) { + DWC_TIMER_CANCEL(pcd->core_if->ep_xfer_timer[i]); + pcd->core_if->ep_xfer_info[i].state = 0; + } + } + + if (GET_CORE_IF(pcd)->dma_enable) { + DWC_DMA_FREE(dev, sizeof(*pcd->setup_pkt) * 5, pcd->setup_pkt, + pcd->setup_pkt_dma_handle); + DWC_DMA_FREE(dev, sizeof(uint16_t), pcd->status_buf, + pcd->status_buf_dma_handle); + if (GET_CORE_IF(pcd)->dma_desc_enable) { + dwc_otg_ep_free_desc_chain(dev, + dev_if->setup_desc_addr[0], + dev_if->dma_setup_desc_addr + [0], 1); + dwc_otg_ep_free_desc_chain(dev, + dev_if->setup_desc_addr[1], + dev_if->dma_setup_desc_addr + [1], 1); + dwc_otg_ep_free_desc_chain(dev, + dev_if->in_desc_addr, + dev_if->dma_in_desc_addr, 1); + dwc_otg_ep_free_desc_chain(dev, + dev_if->out_desc_addr, + dev_if->dma_out_desc_addr, + 1); + } + } else { + DWC_FREE(pcd->setup_pkt); + DWC_FREE(pcd->status_buf); + } + DWC_SPINLOCK_FREE(pcd->lock); + /* Set core_if's lock pointer to NULL */ + pcd->core_if->lock = NULL; + + DWC_TASK_FREE(pcd->start_xfer_tasklet); + DWC_TASK_FREE(pcd->test_mode_tasklet); + if (pcd->core_if->core_params->dev_out_nak) { + for (i = 0; i < MAX_EPS_CHANNELS; i++) { + if (pcd->core_if->ep_xfer_timer[i]) { + DWC_TIMER_FREE(pcd->core_if->ep_xfer_timer[i]); + } + } + } + +/* Release the CFI object's dynamic memory */ +#ifdef DWC_UTE_CFI + if (pcd->cfi->ops.release) { + pcd->cfi->ops.release(pcd->cfi); + } +#endif + + DWC_FREE(pcd); +} + +/** + * Returns whether registered pcd is dual speed or not + */ +uint32_t dwc_otg_pcd_is_dualspeed(dwc_otg_pcd_t * pcd) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + + if ((core_if->core_params->speed == DWC_SPEED_PARAM_FULL) || + ((core_if->hwcfg2.b.hs_phy_type == 2) && + (core_if->hwcfg2.b.fs_phy_type == 1) && + (core_if->core_params->ulpi_fs_ls))) { + return 0; + } + + return 1; +} + +/** + * Returns whether registered pcd is OTG capable or not + */ +uint32_t dwc_otg_pcd_is_otg(dwc_otg_pcd_t * pcd) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + gusbcfg_data_t usbcfg = {.d32 = 0 }; + + usbcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->gusbcfg); + if (!usbcfg.b.srpcap || !usbcfg.b.hnpcap) { + return 0; + } + + return 1; +} + +/** + * This function assigns periodic Tx FIFO to an periodic EP + * in shared Tx FIFO mode + */ +static uint32_t assign_tx_fifo(dwc_otg_core_if_t * core_if) +{ + uint32_t TxMsk = 1; + int i; + + for (i = 0; i < core_if->hwcfg4.b.num_in_eps; ++i) { + if ((TxMsk & core_if->tx_msk) == 0) { + core_if->tx_msk |= TxMsk; + return i + 1; + } + TxMsk <<= 1; + } + return 0; +} + +/** + * This function assigns periodic Tx FIFO to an periodic EP + * in shared Tx FIFO mode + */ +static uint32_t assign_perio_tx_fifo(dwc_otg_core_if_t * core_if) +{ + uint32_t PerTxMsk = 1; + int i; + for (i = 0; i < core_if->hwcfg4.b.num_dev_perio_in_ep; ++i) { + if ((PerTxMsk & core_if->p_tx_msk) == 0) { + core_if->p_tx_msk |= PerTxMsk; + return i + 1; + } + PerTxMsk <<= 1; + } + return 0; +} + +/** + * This function releases periodic Tx FIFO + * in shared Tx FIFO mode + */ +static void release_perio_tx_fifo(dwc_otg_core_if_t * core_if, + uint32_t fifo_num) +{ + core_if->p_tx_msk = + (core_if->p_tx_msk & (1 << (fifo_num - 1))) ^ core_if->p_tx_msk; +} + +/** + * This function releases periodic Tx FIFO + * in shared Tx FIFO mode + */ +static void release_tx_fifo(dwc_otg_core_if_t * core_if, uint32_t fifo_num) +{ + core_if->tx_msk = + (core_if->tx_msk & (1 << (fifo_num - 1))) ^ core_if->tx_msk; +} + +/** + * This function is being called from gadget + * to enable PCD endpoint. + */ +int dwc_otg_pcd_ep_enable(dwc_otg_pcd_t * pcd, + const uint8_t * ep_desc, void *usb_ep) +{ + int num, dir; + dwc_otg_pcd_ep_t *ep = NULL; + const usb_endpoint_descriptor_t *desc; + dwc_irqflags_t flags; + fifosize_data_t dptxfsiz = {.d32 = 0 }; + gdfifocfg_data_t gdfifocfg = {.d32 = 0 }; + gdfifocfg_data_t gdfifocfgbase = {.d32 = 0 }; + int retval = 0; + int i, epcount; + struct device *dev = dwc_otg_pcd_to_dev(pcd); + + desc = (const usb_endpoint_descriptor_t *)ep_desc; + + if (!desc) { + pcd->ep0.priv = usb_ep; + ep = &pcd->ep0; + retval = -DWC_E_INVALID; + goto out; + } + + num = UE_GET_ADDR(desc->bEndpointAddress); + dir = UE_GET_DIR(desc->bEndpointAddress); + + if (!desc->wMaxPacketSize) { + DWC_WARN("bad maxpacketsize\n"); + retval = -DWC_E_INVALID; + goto out; + } + + if (dir == UE_DIR_IN) { + epcount = pcd->core_if->dev_if->num_in_eps; + for (i = 0; i < epcount; i++) { + if (num == pcd->in_ep[i].dwc_ep.num) { + ep = &pcd->in_ep[i]; + break; + } + } + } else { + epcount = pcd->core_if->dev_if->num_out_eps; + for (i = 0; i < epcount; i++) { + if (num == pcd->out_ep[i].dwc_ep.num) { + ep = &pcd->out_ep[i]; + break; + } + } + } + + if (!ep) { + DWC_WARN("bad address\n"); + retval = -DWC_E_INVALID; + goto out; + } + + DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags); + + ep->desc = desc; + ep->priv = usb_ep; + + /* + * Activate the EP + */ + ep->stopped = 0; + + ep->dwc_ep.is_in = (dir == UE_DIR_IN); + ep->dwc_ep.maxpacket = UGETW(desc->wMaxPacketSize); + + ep->dwc_ep.type = desc->bmAttributes & UE_XFERTYPE; + + if (ep->dwc_ep.is_in) { + if (!GET_CORE_IF(pcd)->en_multiple_tx_fifo) { + ep->dwc_ep.tx_fifo_num = 0; + + if (ep->dwc_ep.type == UE_ISOCHRONOUS) { + /* + * if ISOC EP then assign a Periodic Tx FIFO. + */ + ep->dwc_ep.tx_fifo_num = + assign_perio_tx_fifo(GET_CORE_IF(pcd)); + } + } else { + /* + * if Dedicated FIFOs mode is on then assign a Tx FIFO. + */ + ep->dwc_ep.tx_fifo_num = + assign_tx_fifo(GET_CORE_IF(pcd)); + } + + /* Calculating EP info controller base address */ + if (ep->dwc_ep.tx_fifo_num + && GET_CORE_IF(pcd)->en_multiple_tx_fifo) { + gdfifocfg.d32 = + DWC_READ_REG32(&GET_CORE_IF(pcd)-> + core_global_regs->gdfifocfg); + gdfifocfgbase.d32 = gdfifocfg.d32 >> 16; + dptxfsiz.d32 = + (DWC_READ_REG32 + (&GET_CORE_IF(pcd)->core_global_regs-> + dtxfsiz[ep->dwc_ep.tx_fifo_num - 1]) >> 16); + gdfifocfg.b.epinfobase = + gdfifocfgbase.d32 + dptxfsiz.d32; + if (GET_CORE_IF(pcd)->snpsid <= OTG_CORE_REV_2_94a) { + DWC_WRITE_REG32(&GET_CORE_IF(pcd)-> + core_global_regs->gdfifocfg, + gdfifocfg.d32); + } + } + } + /* Set initial data PID. */ + if (ep->dwc_ep.type == UE_BULK) { + ep->dwc_ep.data_pid_start = 0; + } + + /* Alloc DMA Descriptors */ + if (GET_CORE_IF(pcd)->dma_desc_enable) { +#ifndef DWC_UTE_PER_IO + if (ep->dwc_ep.type != UE_ISOCHRONOUS) { +#endif + ep->dwc_ep.desc_addr = + dwc_otg_ep_alloc_desc_chain(dev, + &ep->dwc_ep.dma_desc_addr, + MAX_DMA_DESC_CNT); + if (!ep->dwc_ep.desc_addr) { + DWC_WARN("%s, can't allocate DMA descriptor\n", + __func__); + retval = -DWC_E_SHUTDOWN; + DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags); + goto out; + } +#ifndef DWC_UTE_PER_IO + } +#endif + } + + DWC_DEBUGPL(DBG_PCD, "Activate %s: type=%d, mps=%d desc=%p\n", + (ep->dwc_ep.is_in ? "IN" : "OUT"), + ep->dwc_ep.type, ep->dwc_ep.maxpacket, ep->desc); +#ifdef DWC_UTE_PER_IO + ep->dwc_ep.xiso_bInterval = 1 << (ep->desc->bInterval - 1); +#endif + if (ep->dwc_ep.type == DWC_OTG_EP_TYPE_ISOC) { + ep->dwc_ep.bInterval = 1 << (ep->desc->bInterval - 1); + ep->dwc_ep.frame_num = 0xFFFFFFFF; + } + + dwc_otg_ep_activate(GET_CORE_IF(pcd), &ep->dwc_ep); + +#ifdef DWC_UTE_CFI + if (pcd->cfi->ops.ep_enable) { + pcd->cfi->ops.ep_enable(pcd->cfi, pcd, ep); + } +#endif + + DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags); + +out: + return retval; +} + +/** + * This function is being called from gadget + * to disable PCD endpoint. + */ +int dwc_otg_pcd_ep_disable(dwc_otg_pcd_t * pcd, void *ep_handle) +{ + dwc_otg_pcd_ep_t *ep; + dwc_irqflags_t flags; + dwc_otg_dev_dma_desc_t *desc_addr; + dwc_dma_t dma_desc_addr; + gdfifocfg_data_t gdfifocfgbase = {.d32 = 0 }; + gdfifocfg_data_t gdfifocfg = {.d32 = 0 }; + fifosize_data_t dptxfsiz = {.d32 = 0 }; + struct device *dev = dwc_otg_pcd_to_dev(pcd); + + ep = get_ep_from_handle(pcd, ep_handle); + + if (!ep || !ep->desc) { + DWC_DEBUGPL(DBG_PCD, "bad ep address\n"); + return -DWC_E_INVALID; + } + + DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags); + + dwc_otg_request_nuke(ep); + + dwc_otg_ep_deactivate(GET_CORE_IF(pcd), &ep->dwc_ep); + if (pcd->core_if->core_params->dev_out_nak) { + DWC_TIMER_CANCEL(pcd->core_if->ep_xfer_timer[ep->dwc_ep.num]); + pcd->core_if->ep_xfer_info[ep->dwc_ep.num].state = 0; + } + ep->desc = NULL; + ep->stopped = 1; + + gdfifocfg.d32 = + DWC_READ_REG32(&GET_CORE_IF(pcd)->core_global_regs->gdfifocfg); + gdfifocfgbase.d32 = gdfifocfg.d32 >> 16; + + if (ep->dwc_ep.is_in) { + if (GET_CORE_IF(pcd)->en_multiple_tx_fifo) { + /* Flush the Tx FIFO */ + dwc_otg_flush_tx_fifo(GET_CORE_IF(pcd), + ep->dwc_ep.tx_fifo_num); + } + release_perio_tx_fifo(GET_CORE_IF(pcd), ep->dwc_ep.tx_fifo_num); + release_tx_fifo(GET_CORE_IF(pcd), ep->dwc_ep.tx_fifo_num); + if (GET_CORE_IF(pcd)->en_multiple_tx_fifo) { + /* Decreasing EPinfo Base Addr */ + dptxfsiz.d32 = + (DWC_READ_REG32 + (&GET_CORE_IF(pcd)-> + core_global_regs->dtxfsiz[ep->dwc_ep.tx_fifo_num-1]) >> 16); + gdfifocfg.b.epinfobase = gdfifocfgbase.d32 - dptxfsiz.d32; + if (GET_CORE_IF(pcd)->snpsid <= OTG_CORE_REV_2_94a) { + DWC_WRITE_REG32(&GET_CORE_IF(pcd)->core_global_regs->gdfifocfg, + gdfifocfg.d32); + } + } + } + + /* Free DMA Descriptors */ + if (GET_CORE_IF(pcd)->dma_desc_enable) { + if (ep->dwc_ep.type != UE_ISOCHRONOUS) { + desc_addr = ep->dwc_ep.desc_addr; + dma_desc_addr = ep->dwc_ep.dma_desc_addr; + + /* Cannot call dma_free_coherent() with IRQs disabled */ + DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags); + dwc_otg_ep_free_desc_chain(dev, desc_addr, dma_desc_addr, + MAX_DMA_DESC_CNT); + + goto out_unlocked; + } + } + DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags); + +out_unlocked: + DWC_DEBUGPL(DBG_PCD, "%d %s disabled\n", ep->dwc_ep.num, + ep->dwc_ep.is_in ? "IN" : "OUT"); + return 0; + +} + +/******************************************************************************/ +#ifdef DWC_UTE_PER_IO + +/** + * Free the request and its extended parts + * + */ +void dwc_pcd_xiso_ereq_free(dwc_otg_pcd_ep_t * ep, dwc_otg_pcd_request_t * req) +{ + DWC_FREE(req->ext_req.per_io_frame_descs); + DWC_FREE(req); +} + +/** + * Start the next request in the endpoint's queue. + * + */ +int dwc_otg_pcd_xiso_start_next_request(dwc_otg_pcd_t * pcd, + dwc_otg_pcd_ep_t * ep) +{ + int i; + dwc_otg_pcd_request_t *req = NULL; + dwc_ep_t *dwcep = NULL; + struct dwc_iso_xreq_port *ereq = NULL; + struct dwc_iso_pkt_desc_port *ddesc_iso; + uint16_t nat; + depctl_data_t diepctl; + + dwcep = &ep->dwc_ep; + + if (dwcep->xiso_active_xfers > 0) { +#if 0 //Disable this to decrease s/w overhead that is crucial for Isoc transfers + DWC_WARN("There are currently active transfers for EP%d \ + (active=%d; queued=%d)", dwcep->num, dwcep->xiso_active_xfers, + dwcep->xiso_queued_xfers); +#endif + return 0; + } + + nat = UGETW(ep->desc->wMaxPacketSize); + nat = (nat >> 11) & 0x03; + + if (!DWC_CIRCLEQ_EMPTY(&ep->queue)) { + req = DWC_CIRCLEQ_FIRST(&ep->queue); + ereq = &req->ext_req; + ep->stopped = 0; + + /* Get the frame number */ + dwcep->xiso_frame_num = + dwc_otg_get_frame_number(GET_CORE_IF(pcd)); + DWC_DEBUG("FRM_NUM=%d", dwcep->xiso_frame_num); + + ddesc_iso = ereq->per_io_frame_descs; + + if (dwcep->is_in) { + /* Setup DMA Descriptor chain for IN Isoc request */ + for (i = 0; i < ereq->pio_pkt_count; i++) { + //if ((i % (nat + 1)) == 0) + if ( i > 0 ) + dwcep->xiso_frame_num = + (dwcep->xiso_bInterval + + dwcep->xiso_frame_num) & 0x3FFF; + dwcep->desc_addr[i].buf = + req->dma + ddesc_iso[i].offset; + dwcep->desc_addr[i].status.b_iso_in.txbytes = + ddesc_iso[i].length; + dwcep->desc_addr[i].status.b_iso_in.framenum = + dwcep->xiso_frame_num; + dwcep->desc_addr[i].status.b_iso_in.bs = + BS_HOST_READY; + dwcep->desc_addr[i].status.b_iso_in.txsts = 0; + dwcep->desc_addr[i].status.b_iso_in.sp = + (ddesc_iso[i].length % + dwcep->maxpacket) ? 1 : 0; + dwcep->desc_addr[i].status.b_iso_in.ioc = 0; + dwcep->desc_addr[i].status.b_iso_in.pid = nat + 1; + dwcep->desc_addr[i].status.b_iso_in.l = 0; + + /* Process the last descriptor */ + if (i == ereq->pio_pkt_count - 1) { + dwcep->desc_addr[i].status.b_iso_in.ioc = 1; + dwcep->desc_addr[i].status.b_iso_in.l = 1; + } + } + + /* Setup and start the transfer for this endpoint */ + dwcep->xiso_active_xfers++; + DWC_WRITE_REG32(&GET_CORE_IF(pcd)->dev_if-> + in_ep_regs[dwcep->num]->diepdma, + dwcep->dma_desc_addr); + diepctl.d32 = 0; + diepctl.b.epena = 1; + diepctl.b.cnak = 1; + DWC_MODIFY_REG32(&GET_CORE_IF(pcd)->dev_if-> + in_ep_regs[dwcep->num]->diepctl, 0, + diepctl.d32); + } else { + /* Setup DMA Descriptor chain for OUT Isoc request */ + for (i = 0; i < ereq->pio_pkt_count; i++) { + //if ((i % (nat + 1)) == 0) + dwcep->xiso_frame_num = (dwcep->xiso_bInterval + + dwcep->xiso_frame_num) & 0x3FFF; + dwcep->desc_addr[i].buf = + req->dma + ddesc_iso[i].offset; + dwcep->desc_addr[i].status.b_iso_out.rxbytes = + ddesc_iso[i].length; + dwcep->desc_addr[i].status.b_iso_out.framenum = + dwcep->xiso_frame_num; + dwcep->desc_addr[i].status.b_iso_out.bs = + BS_HOST_READY; + dwcep->desc_addr[i].status.b_iso_out.rxsts = 0; + dwcep->desc_addr[i].status.b_iso_out.sp = + (ddesc_iso[i].length % + dwcep->maxpacket) ? 1 : 0; + dwcep->desc_addr[i].status.b_iso_out.ioc = 0; + dwcep->desc_addr[i].status.b_iso_out.pid = nat + 1; + dwcep->desc_addr[i].status.b_iso_out.l = 0; + + /* Process the last descriptor */ + if (i == ereq->pio_pkt_count - 1) { + dwcep->desc_addr[i].status.b_iso_out.ioc = 1; + dwcep->desc_addr[i].status.b_iso_out.l = 1; + } + } + + /* Setup and start the transfer for this endpoint */ + dwcep->xiso_active_xfers++; + DWC_WRITE_REG32(&GET_CORE_IF(pcd)-> + dev_if->out_ep_regs[dwcep->num]-> + doepdma, dwcep->dma_desc_addr); + diepctl.d32 = 0; + diepctl.b.epena = 1; + diepctl.b.cnak = 1; + DWC_MODIFY_REG32(&GET_CORE_IF(pcd)-> + dev_if->out_ep_regs[dwcep->num]-> + doepctl, 0, diepctl.d32); + } + + } else { + ep->stopped = 1; + } + + return 0; +} + +/** + * - Remove the request from the queue + */ +void complete_xiso_ep(dwc_otg_pcd_ep_t * ep) +{ + dwc_otg_pcd_request_t *req = NULL; + struct dwc_iso_xreq_port *ereq = NULL; + struct dwc_iso_pkt_desc_port *ddesc_iso = NULL; + dwc_ep_t *dwcep = NULL; + int i; + + //DWC_DEBUG(); + dwcep = &ep->dwc_ep; + + /* Get the first pending request from the queue */ + if (!DWC_CIRCLEQ_EMPTY(&ep->queue)) { + req = DWC_CIRCLEQ_FIRST(&ep->queue); + if (!req) { + DWC_PRINTF("complete_ep 0x%p, req = NULL!\n", ep); + return; + } + dwcep->xiso_active_xfers--; + dwcep->xiso_queued_xfers--; + /* Remove this request from the queue */ + DWC_CIRCLEQ_REMOVE_INIT(&ep->queue, req, queue_entry); + } else { + DWC_PRINTF("complete_ep 0x%p, ep->queue empty!\n", ep); + return; + } + + ep->stopped = 1; + ereq = &req->ext_req; + ddesc_iso = ereq->per_io_frame_descs; + + if (dwcep->xiso_active_xfers < 0) { + DWC_WARN("EP#%d (xiso_active_xfers=%d)", dwcep->num, + dwcep->xiso_active_xfers); + } + + /* Fill the Isoc descs of portable extended req from dma descriptors */ + for (i = 0; i < ereq->pio_pkt_count; i++) { + if (dwcep->is_in) { /* IN endpoints */ + ddesc_iso[i].actual_length = ddesc_iso[i].length - + dwcep->desc_addr[i].status.b_iso_in.txbytes; + ddesc_iso[i].status = + dwcep->desc_addr[i].status.b_iso_in.txsts; + } else { /* OUT endpoints */ + ddesc_iso[i].actual_length = ddesc_iso[i].length - + dwcep->desc_addr[i].status.b_iso_out.rxbytes; + ddesc_iso[i].status = + dwcep->desc_addr[i].status.b_iso_out.rxsts; + } + } + + DWC_SPINUNLOCK(ep->pcd->lock); + + /* Call the completion function in the non-portable logic */ + ep->pcd->fops->xisoc_complete(ep->pcd, ep->priv, req->priv, 0, + &req->ext_req); + + DWC_SPINLOCK(ep->pcd->lock); + + /* Free the request - specific freeing needed for extended request object */ + dwc_pcd_xiso_ereq_free(ep, req); + + /* Start the next request */ + dwc_otg_pcd_xiso_start_next_request(ep->pcd, ep); + + return; +} + +/** + * Create and initialize the Isoc pkt descriptors of the extended request. + * + */ +static int dwc_otg_pcd_xiso_create_pkt_descs(dwc_otg_pcd_request_t * req, + void *ereq_nonport, + int atomic_alloc) +{ + struct dwc_iso_xreq_port *ereq = NULL; + struct dwc_iso_xreq_port *req_mapped = NULL; + struct dwc_iso_pkt_desc_port *ipds = NULL; /* To be created in this function */ + uint32_t pkt_count; + int i; + + ereq = &req->ext_req; + req_mapped = (struct dwc_iso_xreq_port *)ereq_nonport; + pkt_count = req_mapped->pio_pkt_count; + + /* Create the isoc descs */ + if (atomic_alloc) { + ipds = DWC_ALLOC_ATOMIC(sizeof(*ipds) * pkt_count); + } else { + ipds = DWC_ALLOC(sizeof(*ipds) * pkt_count); + } + + if (!ipds) { + DWC_ERROR("Failed to allocate isoc descriptors"); + return -DWC_E_NO_MEMORY; + } + + /* Initialize the extended request fields */ + ereq->per_io_frame_descs = ipds; + ereq->error_count = 0; + ereq->pio_alloc_pkt_count = pkt_count; + ereq->pio_pkt_count = pkt_count; + ereq->tr_sub_flags = req_mapped->tr_sub_flags; + + /* Init the Isoc descriptors */ + for (i = 0; i < pkt_count; i++) { + ipds[i].length = req_mapped->per_io_frame_descs[i].length; + ipds[i].offset = req_mapped->per_io_frame_descs[i].offset; + ipds[i].status = req_mapped->per_io_frame_descs[i].status; /* 0 */ + ipds[i].actual_length = + req_mapped->per_io_frame_descs[i].actual_length; + } + + return 0; +} + +static void prn_ext_request(struct dwc_iso_xreq_port *ereq) +{ + struct dwc_iso_pkt_desc_port *xfd = NULL; + int i; + + DWC_DEBUG("per_io_frame_descs=%p", ereq->per_io_frame_descs); + DWC_DEBUG("tr_sub_flags=%d", ereq->tr_sub_flags); + DWC_DEBUG("error_count=%d", ereq->error_count); + DWC_DEBUG("pio_alloc_pkt_count=%d", ereq->pio_alloc_pkt_count); + DWC_DEBUG("pio_pkt_count=%d", ereq->pio_pkt_count); + DWC_DEBUG("res=%d", ereq->res); + + for (i = 0; i < ereq->pio_pkt_count; i++) { + xfd = &ereq->per_io_frame_descs[0]; + DWC_DEBUG("FD #%d", i); + + DWC_DEBUG("xfd->actual_length=%d", xfd->actual_length); + DWC_DEBUG("xfd->length=%d", xfd->length); + DWC_DEBUG("xfd->offset=%d", xfd->offset); + DWC_DEBUG("xfd->status=%d", xfd->status); + } +} + +/** + * + */ +int dwc_otg_pcd_xiso_ep_queue(dwc_otg_pcd_t * pcd, void *ep_handle, + uint8_t * buf, dwc_dma_t dma_buf, uint32_t buflen, + int zero, void *req_handle, int atomic_alloc, + void *ereq_nonport) +{ + dwc_otg_pcd_request_t *req = NULL; + dwc_otg_pcd_ep_t *ep; + dwc_irqflags_t flags; + int res; + + ep = get_ep_from_handle(pcd, ep_handle); + if (!ep) { + DWC_WARN("bad ep\n"); + return -DWC_E_INVALID; + } + + /* We support this extension only for DDMA mode */ + if (ep->dwc_ep.type == DWC_OTG_EP_TYPE_ISOC) + if (!GET_CORE_IF(pcd)->dma_desc_enable) + return -DWC_E_INVALID; + + /* Create a dwc_otg_pcd_request_t object */ + if (atomic_alloc) { + req = DWC_ALLOC_ATOMIC(sizeof(*req)); + } else { + req = DWC_ALLOC(sizeof(*req)); + } + + if (!req) { + return -DWC_E_NO_MEMORY; + } + + /* Create the Isoc descs for this request which shall be the exact match + * of the structure sent to us from the non-portable logic */ + res = + dwc_otg_pcd_xiso_create_pkt_descs(req, ereq_nonport, atomic_alloc); + if (res) { + DWC_WARN("Failed to init the Isoc descriptors"); + DWC_FREE(req); + return res; + } + + DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags); + + DWC_CIRCLEQ_INIT_ENTRY(req, queue_entry); + req->buf = buf; + req->dma = dma_buf; + req->length = buflen; + req->sent_zlp = zero; + req->priv = req_handle; + + //DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags); + ep->dwc_ep.dma_addr = dma_buf; + ep->dwc_ep.start_xfer_buff = buf; + ep->dwc_ep.xfer_buff = buf; + ep->dwc_ep.xfer_len = 0; + ep->dwc_ep.xfer_count = 0; + ep->dwc_ep.sent_zlp = 0; + ep->dwc_ep.total_len = buflen; + + /* Add this request to the tail */ + DWC_CIRCLEQ_INSERT_TAIL(&ep->queue, req, queue_entry); + ep->dwc_ep.xiso_queued_xfers++; + +//DWC_DEBUG("CP_0"); +//DWC_DEBUG("req->ext_req.tr_sub_flags=%d", req->ext_req.tr_sub_flags); +//prn_ext_request((struct dwc_iso_xreq_port *) ereq_nonport); +//prn_ext_request(&req->ext_req); + + //DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags); + + /* If the req->status == ASAP then check if there is any active transfer + * for this endpoint. If no active transfers, then get the first entry + * from the queue and start that transfer + */ + if (req->ext_req.tr_sub_flags == DWC_EREQ_TF_ASAP) { + res = dwc_otg_pcd_xiso_start_next_request(pcd, ep); + if (res) { + DWC_WARN("Failed to start the next Isoc transfer"); + DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags); + DWC_FREE(req); + return res; + } + } + + DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags); + return 0; +} + +#endif +/* END ifdef DWC_UTE_PER_IO ***************************************************/ +int dwc_otg_pcd_ep_queue(dwc_otg_pcd_t * pcd, void *ep_handle, + uint8_t * buf, dwc_dma_t dma_buf, uint32_t buflen, + int zero, void *req_handle, int atomic_alloc) +{ + struct device *dev = dwc_otg_pcd_to_dev(pcd); + dwc_irqflags_t flags; + dwc_otg_pcd_request_t *req; + dwc_otg_pcd_ep_t *ep; + uint32_t max_transfer; + + ep = get_ep_from_handle(pcd, ep_handle); + if (!ep || (!ep->desc && ep->dwc_ep.num != 0)) { + DWC_WARN("bad ep\n"); + return -DWC_E_INVALID; + } + + if (atomic_alloc) { + req = DWC_ALLOC_ATOMIC(sizeof(*req)); + } else { + req = DWC_ALLOC(sizeof(*req)); + } + + if (!req) { + return -DWC_E_NO_MEMORY; + } + DWC_CIRCLEQ_INIT_ENTRY(req, queue_entry); + if (!GET_CORE_IF(pcd)->core_params->opt) { + if (ep->dwc_ep.num != 0) { + DWC_ERROR("queue req %p, len %d buf %p\n", + req_handle, buflen, buf); + } + } + + req->buf = buf; + req->dma = dma_buf; + req->length = buflen; + req->sent_zlp = zero; + req->priv = req_handle; + req->dw_align_buf = NULL; + if ((dma_buf & 0x3) && GET_CORE_IF(pcd)->dma_enable + && !GET_CORE_IF(pcd)->dma_desc_enable) + req->dw_align_buf = DWC_DMA_ALLOC(dev, buflen, + &req->dw_align_buf_dma); + DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags); + + /* + * After adding request to the queue for IN ISOC wait for In Token Received + * when TX FIFO is empty interrupt and for OUT ISOC wait for OUT Token + * Received when EP is disabled interrupt to obtain starting microframe + * (odd/even) start transfer + */ + if (ep->dwc_ep.type == DWC_OTG_EP_TYPE_ISOC) { + if (req != 0) { + depctl_data_t depctl = {.d32 = + DWC_READ_REG32(&pcd->core_if->dev_if-> + in_ep_regs[ep->dwc_ep.num]-> + diepctl) }; + ++pcd->request_pending; + + DWC_CIRCLEQ_INSERT_TAIL(&ep->queue, req, queue_entry); + if (ep->dwc_ep.is_in) { + depctl.b.cnak = 1; + DWC_WRITE_REG32(&pcd->core_if->dev_if-> + in_ep_regs[ep->dwc_ep.num]-> + diepctl, depctl.d32); + } + + DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags); + } + return 0; + } + + /* + * For EP0 IN without premature status, zlp is required? + */ + if (ep->dwc_ep.num == 0 && ep->dwc_ep.is_in) { + DWC_DEBUGPL(DBG_PCDV, "%d-OUT ZLP\n", ep->dwc_ep.num); + //_req->zero = 1; + } + + /* Start the transfer */ + if (DWC_CIRCLEQ_EMPTY(&ep->queue) && !ep->stopped) { + /* EP0 Transfer? */ + if (ep->dwc_ep.num == 0) { + switch (pcd->ep0state) { + case EP0_IN_DATA_PHASE: + DWC_DEBUGPL(DBG_PCD, + "%s ep0: EP0_IN_DATA_PHASE\n", + __func__); + break; + + case EP0_OUT_DATA_PHASE: + DWC_DEBUGPL(DBG_PCD, + "%s ep0: EP0_OUT_DATA_PHASE\n", + __func__); + if (pcd->request_config) { + /* Complete STATUS PHASE */ + ep->dwc_ep.is_in = 1; + pcd->ep0state = EP0_IN_STATUS_PHASE; + } + break; + + case EP0_IN_STATUS_PHASE: + DWC_DEBUGPL(DBG_PCD, + "%s ep0: EP0_IN_STATUS_PHASE\n", + __func__); + break; + + default: + DWC_DEBUGPL(DBG_ANY, "ep0: odd state %d\n", + pcd->ep0state); + DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags); + return -DWC_E_SHUTDOWN; + } + + ep->dwc_ep.dma_addr = dma_buf; + ep->dwc_ep.start_xfer_buff = buf; + ep->dwc_ep.xfer_buff = buf; + ep->dwc_ep.xfer_len = buflen; + ep->dwc_ep.xfer_count = 0; + ep->dwc_ep.sent_zlp = 0; + ep->dwc_ep.total_len = ep->dwc_ep.xfer_len; + + if (zero) { + if ((ep->dwc_ep.xfer_len % + ep->dwc_ep.maxpacket == 0) + && (ep->dwc_ep.xfer_len != 0)) { + ep->dwc_ep.sent_zlp = 1; + } + + } + + dwc_otg_ep0_start_transfer(GET_CORE_IF(pcd), + &ep->dwc_ep); + } // non-ep0 endpoints + else { +#ifdef DWC_UTE_CFI + if (ep->dwc_ep.buff_mode != BM_STANDARD) { + /* store the request length */ + ep->dwc_ep.cfi_req_len = buflen; + pcd->cfi->ops.build_descriptors(pcd->cfi, pcd, + ep, req); + } else { +#endif + max_transfer = + GET_CORE_IF(ep->pcd)->core_params-> + max_transfer_size; + + /* Setup and start the Transfer */ + if (req->dw_align_buf){ + if (ep->dwc_ep.is_in) + dwc_memcpy(req->dw_align_buf, + buf, buflen); + ep->dwc_ep.dma_addr = + req->dw_align_buf_dma; + ep->dwc_ep.start_xfer_buff = + req->dw_align_buf; + ep->dwc_ep.xfer_buff = + req->dw_align_buf; + } else { + ep->dwc_ep.dma_addr = dma_buf; + ep->dwc_ep.start_xfer_buff = buf; + ep->dwc_ep.xfer_buff = buf; + } + ep->dwc_ep.xfer_len = 0; + ep->dwc_ep.xfer_count = 0; + ep->dwc_ep.sent_zlp = 0; + ep->dwc_ep.total_len = buflen; + + ep->dwc_ep.maxxfer = max_transfer; + if (GET_CORE_IF(pcd)->dma_desc_enable) { + uint32_t out_max_xfer = + DDMA_MAX_TRANSFER_SIZE - + (DDMA_MAX_TRANSFER_SIZE % 4); + if (ep->dwc_ep.is_in) { + if (ep->dwc_ep.maxxfer > + DDMA_MAX_TRANSFER_SIZE) { + ep->dwc_ep.maxxfer = + DDMA_MAX_TRANSFER_SIZE; + } + } else { + if (ep->dwc_ep.maxxfer > + out_max_xfer) { + ep->dwc_ep.maxxfer = + out_max_xfer; + } + } + } + if (ep->dwc_ep.maxxfer < ep->dwc_ep.total_len) { + ep->dwc_ep.maxxfer -= + (ep->dwc_ep.maxxfer % + ep->dwc_ep.maxpacket); + } + + if (zero) { + if ((ep->dwc_ep.total_len % + ep->dwc_ep.maxpacket == 0) + && (ep->dwc_ep.total_len != 0)) { + ep->dwc_ep.sent_zlp = 1; + } + } +#ifdef DWC_UTE_CFI + } +#endif + dwc_otg_ep_start_transfer(GET_CORE_IF(pcd), + &ep->dwc_ep); + } + } + + if (req != 0) { + ++pcd->request_pending; + DWC_CIRCLEQ_INSERT_TAIL(&ep->queue, req, queue_entry); + if (ep->dwc_ep.is_in && ep->stopped + && !(GET_CORE_IF(pcd)->dma_enable)) { + /** @todo NGS Create a function for this. */ + diepmsk_data_t diepmsk = {.d32 = 0 }; + diepmsk.b.intktxfemp = 1; + if (GET_CORE_IF(pcd)->multiproc_int_enable) { + DWC_MODIFY_REG32(&GET_CORE_IF(pcd)-> + dev_if->dev_global_regs->diepeachintmsk + [ep->dwc_ep.num], 0, + diepmsk.d32); + } else { + DWC_MODIFY_REG32(&GET_CORE_IF(pcd)-> + dev_if->dev_global_regs-> + diepmsk, 0, diepmsk.d32); + } + + } + } + DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags); + + return 0; +} + +int dwc_otg_pcd_ep_dequeue(dwc_otg_pcd_t * pcd, void *ep_handle, + void *req_handle) +{ + dwc_irqflags_t flags; + dwc_otg_pcd_request_t *req; + dwc_otg_pcd_ep_t *ep; + + ep = get_ep_from_handle(pcd, ep_handle); + if (!ep || (!ep->desc && ep->dwc_ep.num != 0)) { + DWC_WARN("bad argument\n"); + return -DWC_E_INVALID; + } + + DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags); + + /* make sure it's actually queued on this endpoint */ + DWC_CIRCLEQ_FOREACH(req, &ep->queue, queue_entry) { + if (req->priv == (void *)req_handle) { + break; + } + } + + if (req->priv != (void *)req_handle) { + DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags); + return -DWC_E_INVALID; + } + + if (!DWC_CIRCLEQ_EMPTY_ENTRY(req, queue_entry)) { + dwc_otg_request_done(ep, req, -DWC_E_RESTART); + } else { + req = NULL; + } + + DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags); + + return req ? 0 : -DWC_E_SHUTDOWN; + +} + +/** + * dwc_otg_pcd_ep_wedge - sets the halt feature and ignores clear requests + * + * Use this to stall an endpoint and ignore CLEAR_FEATURE(HALT_ENDPOINT) + * requests. If the gadget driver clears the halt status, it will + * automatically unwedge the endpoint. + * + * Returns zero on success, else negative DWC error code. + */ +int dwc_otg_pcd_ep_wedge(dwc_otg_pcd_t * pcd, void *ep_handle) +{ + dwc_otg_pcd_ep_t *ep; + dwc_irqflags_t flags; + int retval = 0; + + ep = get_ep_from_handle(pcd, ep_handle); + + if ((!ep->desc && ep != &pcd->ep0) || + (ep->desc && (ep->desc->bmAttributes == UE_ISOCHRONOUS))) { + DWC_WARN("%s, bad ep\n", __func__); + return -DWC_E_INVALID; + } + + DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags); + if (!DWC_CIRCLEQ_EMPTY(&ep->queue)) { + DWC_WARN("%d %s XFer In process\n", ep->dwc_ep.num, + ep->dwc_ep.is_in ? "IN" : "OUT"); + retval = -DWC_E_AGAIN; + } else { + /* This code needs to be reviewed */ + if (ep->dwc_ep.is_in == 1 && GET_CORE_IF(pcd)->dma_desc_enable) { + dtxfsts_data_t txstatus; + fifosize_data_t txfifosize; + + txfifosize.d32 = + DWC_READ_REG32(&GET_CORE_IF(pcd)-> + core_global_regs->dtxfsiz[ep->dwc_ep. + tx_fifo_num]); + txstatus.d32 = + DWC_READ_REG32(&GET_CORE_IF(pcd)-> + dev_if->in_ep_regs[ep->dwc_ep.num]-> + dtxfsts); + + if (txstatus.b.txfspcavail < txfifosize.b.depth) { + DWC_WARN("%s() Data In Tx Fifo\n", __func__); + retval = -DWC_E_AGAIN; + } else { + if (ep->dwc_ep.num == 0) { + pcd->ep0state = EP0_STALL; + } + + ep->stopped = 1; + dwc_otg_ep_set_stall(GET_CORE_IF(pcd), + &ep->dwc_ep); + } + } else { + if (ep->dwc_ep.num == 0) { + pcd->ep0state = EP0_STALL; + } + + ep->stopped = 1; + dwc_otg_ep_set_stall(GET_CORE_IF(pcd), &ep->dwc_ep); + } + } + + DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags); + + return retval; +} + +int dwc_otg_pcd_ep_halt(dwc_otg_pcd_t * pcd, void *ep_handle, int value) +{ + dwc_otg_pcd_ep_t *ep; + dwc_irqflags_t flags; + int retval = 0; + + ep = get_ep_from_handle(pcd, ep_handle); + + if (!ep || (!ep->desc && ep != &pcd->ep0) || + (ep->desc && (ep->desc->bmAttributes == UE_ISOCHRONOUS))) { + DWC_WARN("%s, bad ep\n", __func__); + return -DWC_E_INVALID; + } + + DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags); + if (!DWC_CIRCLEQ_EMPTY(&ep->queue)) { + DWC_WARN("%d %s XFer In process\n", ep->dwc_ep.num, + ep->dwc_ep.is_in ? "IN" : "OUT"); + retval = -DWC_E_AGAIN; + } else if (value == 0) { + dwc_otg_ep_clear_stall(GET_CORE_IF(pcd), &ep->dwc_ep); + } else if (value == 1) { + if (ep->dwc_ep.is_in == 1 && GET_CORE_IF(pcd)->dma_desc_enable) { + dtxfsts_data_t txstatus; + fifosize_data_t txfifosize; + + txfifosize.d32 = + DWC_READ_REG32(&GET_CORE_IF(pcd)->core_global_regs-> + dtxfsiz[ep->dwc_ep.tx_fifo_num]); + txstatus.d32 = + DWC_READ_REG32(&GET_CORE_IF(pcd)->dev_if-> + in_ep_regs[ep->dwc_ep.num]->dtxfsts); + + if (txstatus.b.txfspcavail < txfifosize.b.depth) { + DWC_WARN("%s() Data In Tx Fifo\n", __func__); + retval = -DWC_E_AGAIN; + } else { + if (ep->dwc_ep.num == 0) { + pcd->ep0state = EP0_STALL; + } + + ep->stopped = 1; + dwc_otg_ep_set_stall(GET_CORE_IF(pcd), + &ep->dwc_ep); + } + } else { + if (ep->dwc_ep.num == 0) { + pcd->ep0state = EP0_STALL; + } + + ep->stopped = 1; + dwc_otg_ep_set_stall(GET_CORE_IF(pcd), &ep->dwc_ep); + } + } else if (value == 2) { + ep->dwc_ep.stall_clear_flag = 0; + } else if (value == 3) { + ep->dwc_ep.stall_clear_flag = 1; + } + + DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags); + + return retval; +} + +/** + * This function initiates remote wakeup of the host from suspend state. + */ +void dwc_otg_pcd_rem_wkup_from_suspend(dwc_otg_pcd_t * pcd, int set) +{ + dctl_data_t dctl = { 0 }; + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dsts_data_t dsts; + + dsts.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dsts); + if (!dsts.b.suspsts) { + DWC_WARN("Remote wakeup while is not in suspend state\n"); + } + /* Check if DEVICE_REMOTE_WAKEUP feature enabled */ + if (pcd->remote_wakeup_enable) { + if (set) { + + if (core_if->adp_enable) { + gpwrdn_data_t gpwrdn; + + dwc_otg_adp_probe_stop(core_if); + + /* Mask SRP detected interrupt from Power Down Logic */ + gpwrdn.d32 = 0; + gpwrdn.b.srp_det_msk = 1; + DWC_MODIFY_REG32(&core_if-> + core_global_regs->gpwrdn, + gpwrdn.d32, 0); + + /* Disable Power Down Logic */ + gpwrdn.d32 = 0; + gpwrdn.b.pmuactv = 1; + DWC_MODIFY_REG32(&core_if-> + core_global_regs->gpwrdn, + gpwrdn.d32, 0); + + /* + * Initialize the Core for Device mode. + */ + core_if->op_state = B_PERIPHERAL; + dwc_otg_core_init(core_if); + dwc_otg_enable_global_interrupts(core_if); + cil_pcd_start(core_if); + + dwc_otg_initiate_srp(core_if); + } + + dctl.b.rmtwkupsig = 1; + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs-> + dctl, 0, dctl.d32); + DWC_DEBUGPL(DBG_PCD, "Set Remote Wakeup\n"); + + dwc_mdelay(2); + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs-> + dctl, dctl.d32, 0); + DWC_DEBUGPL(DBG_PCD, "Clear Remote Wakeup\n"); + } + } else { + DWC_DEBUGPL(DBG_PCD, "Remote Wakeup is disabled\n"); + } +} + +#ifdef CONFIG_USB_DWC_OTG_LPM +/** + * This function initiates remote wakeup of the host from L1 sleep state. + */ +void dwc_otg_pcd_rem_wkup_from_sleep(dwc_otg_pcd_t * pcd, int set) +{ + glpmcfg_data_t lpmcfg; + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + + lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg); + + /* Check if we are in L1 state */ + if (!lpmcfg.b.prt_sleep_sts) { + DWC_DEBUGPL(DBG_PCD, "Device is not in sleep state\n"); + return; + } + + /* Check if host allows remote wakeup */ + if (!lpmcfg.b.rem_wkup_en) { + DWC_DEBUGPL(DBG_PCD, "Host does not allow remote wakeup\n"); + return; + } + + /* Check if Resume OK */ + if (!lpmcfg.b.sleep_state_resumeok) { + DWC_DEBUGPL(DBG_PCD, "Sleep state resume is not OK\n"); + return; + } + + lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg); + lpmcfg.b.en_utmi_sleep = 0; + lpmcfg.b.hird_thres &= (~(1 << 4)); + DWC_WRITE_REG32(&core_if->core_global_regs->glpmcfg, lpmcfg.d32); + + if (set) { + dctl_data_t dctl = {.d32 = 0 }; + dctl.b.rmtwkupsig = 1; + /* Set RmtWkUpSig bit to start remote wakup signaling. + * Hardware will automatically clear this bit. + */ + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, + 0, dctl.d32); + DWC_DEBUGPL(DBG_PCD, "Set Remote Wakeup\n"); + } + +} +#endif + +/** + * Performs remote wakeup. + */ +void dwc_otg_pcd_remote_wakeup(dwc_otg_pcd_t * pcd, int set) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_irqflags_t flags; + if (dwc_otg_is_device_mode(core_if)) { + DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags); +#ifdef CONFIG_USB_DWC_OTG_LPM + if (core_if->lx_state == DWC_OTG_L1) { + dwc_otg_pcd_rem_wkup_from_sleep(pcd, set); + } else { +#endif + dwc_otg_pcd_rem_wkup_from_suspend(pcd, set); +#ifdef CONFIG_USB_DWC_OTG_LPM + } +#endif + DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags); + } + return; +} + +void dwc_otg_pcd_disconnect_us(dwc_otg_pcd_t * pcd, int no_of_usecs) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dctl_data_t dctl = { 0 }; + + if (dwc_otg_is_device_mode(core_if)) { + dctl.b.sftdiscon = 1; + DWC_PRINTF("Soft disconnect for %d useconds\n",no_of_usecs); + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, 0, dctl.d32); + dwc_udelay(no_of_usecs); + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32,0); + + } else{ + DWC_PRINTF("NOT SUPPORTED IN HOST MODE\n"); + } + return; + +} + +int dwc_otg_pcd_wakeup(dwc_otg_pcd_t * pcd) +{ + dsts_data_t dsts; + gotgctl_data_t gotgctl; + + /* + * This function starts the Protocol if no session is in progress. If + * a session is already in progress, but the device is suspended, + * remote wakeup signaling is started. + */ + + /* Check if valid session */ + gotgctl.d32 = + DWC_READ_REG32(&(GET_CORE_IF(pcd)->core_global_regs->gotgctl)); + if (gotgctl.b.bsesvld) { + /* Check if suspend state */ + dsts.d32 = + DWC_READ_REG32(& + (GET_CORE_IF(pcd)->dev_if-> + dev_global_regs->dsts)); + if (dsts.b.suspsts) { + dwc_otg_pcd_remote_wakeup(pcd, 1); + } + } else { + dwc_otg_pcd_initiate_srp(pcd); + } + + return 0; + +} + +/** + * Start the SRP timer to detect when the SRP does not complete within + * 6 seconds. + * + * @param pcd the pcd structure. + */ +void dwc_otg_pcd_initiate_srp(dwc_otg_pcd_t * pcd) +{ + dwc_irqflags_t flags; + DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags); + dwc_otg_initiate_srp(GET_CORE_IF(pcd)); + DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags); +} + +int dwc_otg_pcd_get_frame_number(dwc_otg_pcd_t * pcd) +{ + return dwc_otg_get_frame_number(GET_CORE_IF(pcd)); +} + +int dwc_otg_pcd_is_lpm_enabled(dwc_otg_pcd_t * pcd) +{ + return GET_CORE_IF(pcd)->core_params->lpm_enable; +} + +uint32_t get_b_hnp_enable(dwc_otg_pcd_t * pcd) +{ + return pcd->b_hnp_enable; +} + +uint32_t get_a_hnp_support(dwc_otg_pcd_t * pcd) +{ + return pcd->a_hnp_support; +} + +uint32_t get_a_alt_hnp_support(dwc_otg_pcd_t * pcd) +{ + return pcd->a_alt_hnp_support; +} + +int dwc_otg_pcd_get_rmwkup_enable(dwc_otg_pcd_t * pcd) +{ + return pcd->remote_wakeup_enable; +} + +#endif /* DWC_HOST_ONLY */ diff --git a/drivers/usb/host/dwc_otg/dwc_otg_pcd.h b/drivers/usb/host/dwc_otg/dwc_otg_pcd.h new file mode 100644 index 0000000000000000000000000000000000000000..a70ebd049d2cca3bf988a1f809832eebede14f96 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_pcd.h @@ -0,0 +1,273 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_pcd.h $ + * $Revision: #48 $ + * $Date: 2012/08/10 $ + * $Change: 2047372 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ +#ifndef DWC_HOST_ONLY +#if !defined(__DWC_PCD_H__) +#define __DWC_PCD_H__ + +#include "dwc_otg_os_dep.h" +#include "usb.h" +#include "dwc_otg_cil.h" +#include "dwc_otg_pcd_if.h" +#include "dwc_otg_driver.h" + +struct cfiobject; + +/** + * @file + * + * This file contains the structures, constants, and interfaces for + * the Perpherial Contoller Driver (PCD). + * + * The Peripheral Controller Driver (PCD) for Linux will implement the + * Gadget API, so that the existing Gadget drivers can be used. For + * the Mass Storage Function driver the File-backed USB Storage Gadget + * (FBS) driver will be used. The FBS driver supports the + * Control-Bulk (CB), Control-Bulk-Interrupt (CBI), and Bulk-Only + * transports. + * + */ + +/** Invalid DMA Address */ +#define DWC_DMA_ADDR_INVALID (~(dwc_dma_t)0) + +/** Max Transfer size for any EP */ +#define DDMA_MAX_TRANSFER_SIZE 65535 + +/** + * Get the pointer to the core_if from the pcd pointer. + */ +#define GET_CORE_IF( _pcd ) (_pcd->core_if) + +/** + * States of EP0. + */ +typedef enum ep0_state { + EP0_DISCONNECT, /* no host */ + EP0_IDLE, + EP0_IN_DATA_PHASE, + EP0_OUT_DATA_PHASE, + EP0_IN_STATUS_PHASE, + EP0_OUT_STATUS_PHASE, + EP0_STALL, +} ep0state_e; + +/** Fordward declaration.*/ +struct dwc_otg_pcd; + +/** DWC_otg iso request structure. + * + */ +typedef struct usb_iso_request dwc_otg_pcd_iso_request_t; + +#ifdef DWC_UTE_PER_IO + +/** + * This shall be the exact analogy of the same type structure defined in the + * usb_gadget.h. Each descriptor contains + */ +struct dwc_iso_pkt_desc_port { + uint32_t offset; + uint32_t length; /* expected length */ + uint32_t actual_length; + uint32_t status; +}; + +struct dwc_iso_xreq_port { + /** transfer/submission flag */ + uint32_t tr_sub_flags; + /** Start the request ASAP */ +#define DWC_EREQ_TF_ASAP 0x00000002 + /** Just enqueue the request w/o initiating a transfer */ +#define DWC_EREQ_TF_ENQUEUE 0x00000004 + + /** + * count of ISO packets attached to this request - shall + * not exceed the pio_alloc_pkt_count + */ + uint32_t pio_pkt_count; + /** count of ISO packets allocated for this request */ + uint32_t pio_alloc_pkt_count; + /** number of ISO packet errors */ + uint32_t error_count; + /** reserved for future extension */ + uint32_t res; + /** Will be allocated and freed in the UTE gadget and based on the CFC value */ + struct dwc_iso_pkt_desc_port *per_io_frame_descs; +}; +#endif +/** DWC_otg request structure. + * This structure is a list of requests. + */ +typedef struct dwc_otg_pcd_request { + void *priv; + void *buf; + dwc_dma_t dma; + uint32_t length; + uint32_t actual; + unsigned sent_zlp:1; + /** + * Used instead of original buffer if + * it(physical address) is not dword-aligned. + **/ + uint8_t *dw_align_buf; + dwc_dma_t dw_align_buf_dma; + + DWC_CIRCLEQ_ENTRY(dwc_otg_pcd_request) queue_entry; +#ifdef DWC_UTE_PER_IO + struct dwc_iso_xreq_port ext_req; + //void *priv_ereq_nport; /* */ +#endif +} dwc_otg_pcd_request_t; + +DWC_CIRCLEQ_HEAD(req_list, dwc_otg_pcd_request); + +/** PCD EP structure. + * This structure describes an EP, there is an array of EPs in the PCD + * structure. + */ +typedef struct dwc_otg_pcd_ep { + /** USB EP Descriptor */ + const usb_endpoint_descriptor_t *desc; + + /** queue of dwc_otg_pcd_requests. */ + struct req_list queue; + unsigned stopped:1; + unsigned disabling:1; + unsigned dma:1; + unsigned queue_sof:1; + +#ifdef DWC_EN_ISOC + /** ISOC req handle passed */ + void *iso_req_handle; +#endif //_EN_ISOC_ + + /** DWC_otg ep data. */ + dwc_ep_t dwc_ep; + + /** Pointer to PCD */ + struct dwc_otg_pcd *pcd; + + void *priv; +} dwc_otg_pcd_ep_t; + +/** DWC_otg PCD Structure. + * This structure encapsulates the data for the dwc_otg PCD. + */ +struct dwc_otg_pcd { + const struct dwc_otg_pcd_function_ops *fops; + /** The DWC otg device pointer */ + struct dwc_otg_device *otg_dev; + /** Core Interface */ + dwc_otg_core_if_t *core_if; + /** State of EP0 */ + ep0state_e ep0state; + /** EP0 Request is pending */ + unsigned ep0_pending:1; + /** Indicates when SET CONFIGURATION Request is in process */ + unsigned request_config:1; + /** The state of the Remote Wakeup Enable. */ + unsigned remote_wakeup_enable:1; + /** The state of the B-Device HNP Enable. */ + unsigned b_hnp_enable:1; + /** The state of A-Device HNP Support. */ + unsigned a_hnp_support:1; + /** The state of the A-Device Alt HNP support. */ + unsigned a_alt_hnp_support:1; + /** Count of pending Requests */ + unsigned request_pending; + + /** SETUP packet for EP0 + * This structure is allocated as a DMA buffer on PCD initialization + * with enough space for up to 3 setup packets. + */ + union { + usb_device_request_t req; + uint32_t d32[2]; + } *setup_pkt; + + dwc_dma_t setup_pkt_dma_handle; + + /* Additional buffer and flag for CTRL_WR premature case */ + uint8_t *backup_buf; + unsigned data_terminated; + + /** 2-byte dma buffer used to return status from GET_STATUS */ + uint16_t *status_buf; + dwc_dma_t status_buf_dma_handle; + + /** EP0 */ + dwc_otg_pcd_ep_t ep0; + + /** Array of IN EPs. */ + dwc_otg_pcd_ep_t in_ep[MAX_EPS_CHANNELS - 1]; + /** Array of OUT EPs. */ + dwc_otg_pcd_ep_t out_ep[MAX_EPS_CHANNELS - 1]; + /** number of valid EPs in the above array. */ +// unsigned num_eps : 4; + dwc_spinlock_t *lock; + + /** Tasklet to defer starting of TEST mode transmissions until + * Status Phase has been completed. + */ + dwc_tasklet_t *test_mode_tasklet; + + /** Tasklet to delay starting of xfer in DMA mode */ + dwc_tasklet_t *start_xfer_tasklet; + + /** The test mode to enter when the tasklet is executed. */ + unsigned test_mode; + /** The cfi_api structure that implements most of the CFI API + * and OTG specific core configuration functionality + */ +#ifdef DWC_UTE_CFI + struct cfiobject *cfi; +#endif + +}; + +static inline struct device *dwc_otg_pcd_to_dev(struct dwc_otg_pcd *pcd) +{ + return &pcd->otg_dev->os_dep.platformdev->dev; +} + +//FIXME this functions should be static, and this prototypes should be removed +extern void dwc_otg_request_nuke(dwc_otg_pcd_ep_t * ep); +extern void dwc_otg_request_done(dwc_otg_pcd_ep_t * ep, + dwc_otg_pcd_request_t * req, int32_t status); + +void dwc_otg_iso_buffer_done(dwc_otg_pcd_t * pcd, dwc_otg_pcd_ep_t * ep, + void *req_handle); + +extern void do_test_mode(void *data); +#endif +#endif /* DWC_HOST_ONLY */ diff --git a/drivers/usb/host/dwc_otg/dwc_otg_pcd_if.h b/drivers/usb/host/dwc_otg/dwc_otg_pcd_if.h new file mode 100644 index 0000000000000000000000000000000000000000..4c1d591fbc098b2f4a745669e4f243e068735b20 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_pcd_if.h @@ -0,0 +1,361 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_pcd_if.h $ + * $Revision: #11 $ + * $Date: 2011/10/26 $ + * $Change: 1873028 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ +#ifndef DWC_HOST_ONLY + +#if !defined(__DWC_PCD_IF_H__) +#define __DWC_PCD_IF_H__ + +//#include "dwc_os.h" +#include "dwc_otg_core_if.h" +#include "dwc_otg_driver.h" + +/** @file + * This file defines DWC_OTG PCD Core API. + */ + +struct dwc_otg_pcd; +typedef struct dwc_otg_pcd dwc_otg_pcd_t; + +/** Maxpacket size for EP0 */ +#define MAX_EP0_SIZE 64 +/** Maxpacket size for any EP */ +#define MAX_PACKET_SIZE 1024 + +/** @name Function Driver Callbacks */ +/** @{ */ + +/** This function will be called whenever a previously queued request has + * completed. The status value will be set to -DWC_E_SHUTDOWN to indicated a + * failed or aborted transfer, or -DWC_E_RESTART to indicate the device was reset, + * or -DWC_E_TIMEOUT to indicate it timed out, or -DWC_E_INVALID to indicate invalid + * parameters. */ +typedef int (*dwc_completion_cb_t) (dwc_otg_pcd_t * pcd, void *ep_handle, + void *req_handle, int32_t status, + uint32_t actual); +/** + * This function will be called whenever a previousle queued ISOC request has + * completed. Count of ISOC packets could be read using dwc_otg_pcd_get_iso_packet_count + * function. + * The status of each ISOC packet could be read using dwc_otg_pcd_get_iso_packet_* + * functions. + */ +typedef int (*dwc_isoc_completion_cb_t) (dwc_otg_pcd_t * pcd, void *ep_handle, + void *req_handle, int proc_buf_num); +/** This function should handle any SETUP request that cannot be handled by the + * PCD Core. This includes most GET_DESCRIPTORs, SET_CONFIGS, Any + * class-specific requests, etc. The function must non-blocking. + * + * Returns 0 on success. + * Returns -DWC_E_NOT_SUPPORTED if the request is not supported. + * Returns -DWC_E_INVALID if the setup request had invalid parameters or bytes. + * Returns -DWC_E_SHUTDOWN on any other error. */ +typedef int (*dwc_setup_cb_t) (dwc_otg_pcd_t * pcd, uint8_t * bytes); +/** This is called whenever the device has been disconnected. The function + * driver should take appropriate action to clean up all pending requests in the + * PCD Core, remove all endpoints (except ep0), and initialize back to reset + * state. */ +typedef int (*dwc_disconnect_cb_t) (dwc_otg_pcd_t * pcd); +/** This function is called when device has been connected. */ +typedef int (*dwc_connect_cb_t) (dwc_otg_pcd_t * pcd, int speed); +/** This function is called when device has been suspended */ +typedef int (*dwc_suspend_cb_t) (dwc_otg_pcd_t * pcd); +/** This function is called when device has received LPM tokens, i.e. + * device has been sent to sleep state. */ +typedef int (*dwc_sleep_cb_t) (dwc_otg_pcd_t * pcd); +/** This function is called when device has been resumed + * from suspend(L2) or L1 sleep state. */ +typedef int (*dwc_resume_cb_t) (dwc_otg_pcd_t * pcd); +/** This function is called whenever hnp params has been changed. + * User can call get_b_hnp_enable, get_a_hnp_support, get_a_alt_hnp_support functions + * to get hnp parameters. */ +typedef int (*dwc_hnp_params_changed_cb_t) (dwc_otg_pcd_t * pcd); +/** This function is called whenever USB RESET is detected. */ +typedef int (*dwc_reset_cb_t) (dwc_otg_pcd_t * pcd); + +typedef int (*cfi_setup_cb_t) (dwc_otg_pcd_t * pcd, void *ctrl_req_bytes); + +/** + * + * @param ep_handle Void pointer to the usb_ep structure + * @param ereq_port Pointer to the extended request structure created in the + * portable part. + */ +typedef int (*xiso_completion_cb_t) (dwc_otg_pcd_t * pcd, void *ep_handle, + void *req_handle, int32_t status, + void *ereq_port); +/** Function Driver Ops Data Structure */ +struct dwc_otg_pcd_function_ops { + dwc_connect_cb_t connect; + dwc_disconnect_cb_t disconnect; + dwc_setup_cb_t setup; + dwc_completion_cb_t complete; + dwc_isoc_completion_cb_t isoc_complete; + dwc_suspend_cb_t suspend; + dwc_sleep_cb_t sleep; + dwc_resume_cb_t resume; + dwc_reset_cb_t reset; + dwc_hnp_params_changed_cb_t hnp_changed; + cfi_setup_cb_t cfi_setup; +#ifdef DWC_UTE_PER_IO + xiso_completion_cb_t xisoc_complete; +#endif +}; +/** @} */ + +/** @name Function Driver Functions */ +/** @{ */ + +/** Call this function to get pointer on dwc_otg_pcd_t, + * this pointer will be used for all PCD API functions. + * + * @param core_if The DWC_OTG Core + */ +extern dwc_otg_pcd_t *dwc_otg_pcd_init(dwc_otg_device_t *otg_dev); + +/** Frees PCD allocated by dwc_otg_pcd_init + * + * @param pcd The PCD + */ +extern void dwc_otg_pcd_remove(dwc_otg_pcd_t * pcd); + +/** Call this to bind the function driver to the PCD Core. + * + * @param pcd Pointer on dwc_otg_pcd_t returned by dwc_otg_pcd_init function. + * @param fops The Function Driver Ops data structure containing pointers to all callbacks. + */ +extern void dwc_otg_pcd_start(dwc_otg_pcd_t * pcd, + const struct dwc_otg_pcd_function_ops *fops); + +/** Enables an endpoint for use. This function enables an endpoint in + * the PCD. The endpoint is described by the ep_desc which has the + * same format as a USB ep descriptor. The ep_handle parameter is used to refer + * to the endpoint from other API functions and in callbacks. Normally this + * should be called after a SET_CONFIGURATION/SET_INTERFACE to configure the + * core for that interface. + * + * Returns -DWC_E_INVALID if invalid parameters were passed. + * Returns -DWC_E_SHUTDOWN if any other error ocurred. + * Returns 0 on success. + * + * @param pcd The PCD + * @param ep_desc Endpoint descriptor + * @param usb_ep Handle on endpoint, that will be used to identify endpoint. + */ +extern int dwc_otg_pcd_ep_enable(dwc_otg_pcd_t * pcd, + const uint8_t * ep_desc, void *usb_ep); + +/** Disable the endpoint referenced by ep_handle. + * + * Returns -DWC_E_INVALID if invalid parameters were passed. + * Returns -DWC_E_SHUTDOWN if any other error occurred. + * Returns 0 on success. */ +extern int dwc_otg_pcd_ep_disable(dwc_otg_pcd_t * pcd, void *ep_handle); + +/** Queue a data transfer request on the endpoint referenced by ep_handle. + * After the transfer is completes, the complete callback will be called with + * the request status. + * + * @param pcd The PCD + * @param ep_handle The handle of the endpoint + * @param buf The buffer for the data + * @param dma_buf The DMA buffer for the data + * @param buflen The length of the data transfer + * @param zero Specifies whether to send zero length last packet. + * @param req_handle Set this handle to any value to use to reference this + * request in the ep_dequeue function or from the complete callback + * @param atomic_alloc If driver need to perform atomic allocations + * for internal data structures. + * + * Returns -DWC_E_INVALID if invalid parameters were passed. + * Returns -DWC_E_SHUTDOWN if any other error ocurred. + * Returns 0 on success. */ +extern int dwc_otg_pcd_ep_queue(dwc_otg_pcd_t * pcd, void *ep_handle, + uint8_t * buf, dwc_dma_t dma_buf, + uint32_t buflen, int zero, void *req_handle, + int atomic_alloc); +#ifdef DWC_UTE_PER_IO +/** + * + * @param ereq_nonport Pointer to the extended request part of the + * usb_request structure defined in usb_gadget.h file. + */ +extern int dwc_otg_pcd_xiso_ep_queue(dwc_otg_pcd_t * pcd, void *ep_handle, + uint8_t * buf, dwc_dma_t dma_buf, + uint32_t buflen, int zero, + void *req_handle, int atomic_alloc, + void *ereq_nonport); + +#endif + +/** De-queue the specified data transfer that has not yet completed. + * + * Returns -DWC_E_INVALID if invalid parameters were passed. + * Returns -DWC_E_SHUTDOWN if any other error ocurred. + * Returns 0 on success. */ +extern int dwc_otg_pcd_ep_dequeue(dwc_otg_pcd_t * pcd, void *ep_handle, + void *req_handle); + +/** Halt (STALL) an endpoint or clear it. + * + * Returns -DWC_E_INVALID if invalid parameters were passed. + * Returns -DWC_E_SHUTDOWN if any other error ocurred. + * Returns -DWC_E_AGAIN if the STALL cannot be sent and must be tried again later + * Returns 0 on success. */ +extern int dwc_otg_pcd_ep_halt(dwc_otg_pcd_t * pcd, void *ep_handle, int value); + +/** This function */ +extern int dwc_otg_pcd_ep_wedge(dwc_otg_pcd_t * pcd, void *ep_handle); + +/** This function should be called on every hardware interrupt */ +extern int32_t dwc_otg_pcd_handle_intr(dwc_otg_pcd_t * pcd); + +/** This function returns current frame number */ +extern int dwc_otg_pcd_get_frame_number(dwc_otg_pcd_t * pcd); + +/** + * Start isochronous transfers on the endpoint referenced by ep_handle. + * For isochronous transfers duble buffering is used. + * After processing each of buffers comlete callback will be called with + * status for each transaction. + * + * @param pcd The PCD + * @param ep_handle The handle of the endpoint + * @param buf0 The virtual address of first data buffer + * @param buf1 The virtual address of second data buffer + * @param dma0 The DMA address of first data buffer + * @param dma1 The DMA address of second data buffer + * @param sync_frame Data pattern frame number + * @param dp_frame Data size for pattern frame + * @param data_per_frame Data size for regular frame + * @param start_frame Frame number to start transfers, if -1 then start transfers ASAP. + * @param buf_proc_intrvl Interval of ISOC Buffer processing + * @param req_handle Handle of ISOC request + * @param atomic_alloc Specefies whether to perform atomic allocation for + * internal data structures. + * + * Returns -DWC_E_NO_MEMORY if there is no enough memory. + * Returns -DWC_E_INVALID if incorrect arguments are passed to the function. + * Returns -DW_E_SHUTDOWN for any other error. + * Returns 0 on success + */ +extern int dwc_otg_pcd_iso_ep_start(dwc_otg_pcd_t * pcd, void *ep_handle, + uint8_t * buf0, uint8_t * buf1, + dwc_dma_t dma0, dwc_dma_t dma1, + int sync_frame, int dp_frame, + int data_per_frame, int start_frame, + int buf_proc_intrvl, void *req_handle, + int atomic_alloc); + +/** Stop ISOC transfers on endpoint referenced by ep_handle. + * + * @param pcd The PCD + * @param ep_handle The handle of the endpoint + * @param req_handle Handle of ISOC request + * + * Returns -DWC_E_INVALID if incorrect arguments are passed to the function + * Returns 0 on success + */ +int dwc_otg_pcd_iso_ep_stop(dwc_otg_pcd_t * pcd, void *ep_handle, + void *req_handle); + +/** Get ISOC packet status. + * + * @param pcd The PCD + * @param ep_handle The handle of the endpoint + * @param iso_req_handle Isochronoush request handle + * @param packet Number of packet + * @param status Out parameter for returning status + * @param actual Out parameter for returning actual length + * @param offset Out parameter for returning offset + * + */ +extern void dwc_otg_pcd_get_iso_packet_params(dwc_otg_pcd_t * pcd, + void *ep_handle, + void *iso_req_handle, int packet, + int *status, int *actual, + int *offset); + +/** Get ISOC packet count. + * + * @param pcd The PCD + * @param ep_handle The handle of the endpoint + * @param iso_req_handle + */ +extern int dwc_otg_pcd_get_iso_packet_count(dwc_otg_pcd_t * pcd, + void *ep_handle, + void *iso_req_handle); + +/** This function starts the SRP Protocol if no session is in progress. If + * a session is already in progress, but the device is suspended, + * remote wakeup signaling is started. + */ +extern int dwc_otg_pcd_wakeup(dwc_otg_pcd_t * pcd); + +/** This function returns 1 if LPM support is enabled, and 0 otherwise. */ +extern int dwc_otg_pcd_is_lpm_enabled(dwc_otg_pcd_t * pcd); + +/** This function returns 1 if remote wakeup is allowed and 0, otherwise. */ +extern int dwc_otg_pcd_get_rmwkup_enable(dwc_otg_pcd_t * pcd); + +/** Initiate SRP */ +extern void dwc_otg_pcd_initiate_srp(dwc_otg_pcd_t * pcd); + +/** Starts remote wakeup signaling. */ +extern void dwc_otg_pcd_remote_wakeup(dwc_otg_pcd_t * pcd, int set); + +/** Starts micorsecond soft disconnect. */ +extern void dwc_otg_pcd_disconnect_us(dwc_otg_pcd_t * pcd, int no_of_usecs); +/** This function returns whether device is dualspeed.*/ +extern uint32_t dwc_otg_pcd_is_dualspeed(dwc_otg_pcd_t * pcd); + +/** This function returns whether device is otg. */ +extern uint32_t dwc_otg_pcd_is_otg(dwc_otg_pcd_t * pcd); + +/** These functions allow to get hnp parameters */ +extern uint32_t get_b_hnp_enable(dwc_otg_pcd_t * pcd); +extern uint32_t get_a_hnp_support(dwc_otg_pcd_t * pcd); +extern uint32_t get_a_alt_hnp_support(dwc_otg_pcd_t * pcd); + +/** CFI specific Interface functions */ +/** Allocate a cfi buffer */ +extern uint8_t *cfiw_ep_alloc_buffer(dwc_otg_pcd_t * pcd, void *pep, + dwc_dma_t * addr, size_t buflen, + int flags); + +/******************************************************************************/ + +/** @} */ + +#endif /* __DWC_PCD_IF_H__ */ + +#endif /* DWC_HOST_ONLY */ diff --git a/drivers/usb/host/dwc_otg/dwc_otg_pcd_intr.c b/drivers/usb/host/dwc_otg/dwc_otg_pcd_intr.c new file mode 100644 index 0000000000000000000000000000000000000000..e55ea9c74be46167a41dc14a2d88a1228878b1bb --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_pcd_intr.c @@ -0,0 +1,5148 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_pcd_intr.c $ + * $Revision: #116 $ + * $Date: 2012/08/10 $ + * $Change: 2047372 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ +#ifndef DWC_HOST_ONLY + +#include "dwc_otg_pcd.h" + +#ifdef DWC_UTE_CFI +#include "dwc_otg_cfi.h" +#endif + +#ifdef DWC_UTE_PER_IO +extern void complete_xiso_ep(dwc_otg_pcd_ep_t * ep); +#endif +//#define PRINT_CFI_DMA_DESCS + +#define DEBUG_EP0 + +/** + * This function updates OTG. + */ +static void dwc_otg_pcd_update_otg(dwc_otg_pcd_t * pcd, const unsigned reset) +{ + + if (reset) { + pcd->b_hnp_enable = 0; + pcd->a_hnp_support = 0; + pcd->a_alt_hnp_support = 0; + } + + if (pcd->fops->hnp_changed) { + pcd->fops->hnp_changed(pcd); + } +} + +/** @file + * This file contains the implementation of the PCD Interrupt handlers. + * + * The PCD handles the device interrupts. Many conditions can cause a + * device interrupt. When an interrupt occurs, the device interrupt + * service routine determines the cause of the interrupt and + * dispatches handling to the appropriate function. These interrupt + * handling functions are described below. + * All interrupt registers are processed from LSB to MSB. + */ + +/** + * This function prints the ep0 state for debug purposes. + */ +static inline void print_ep0_state(dwc_otg_pcd_t * pcd) +{ +#ifdef DEBUG + char str[40]; + + switch (pcd->ep0state) { + case EP0_DISCONNECT: + dwc_strcpy(str, "EP0_DISCONNECT"); + break; + case EP0_IDLE: + dwc_strcpy(str, "EP0_IDLE"); + break; + case EP0_IN_DATA_PHASE: + dwc_strcpy(str, "EP0_IN_DATA_PHASE"); + break; + case EP0_OUT_DATA_PHASE: + dwc_strcpy(str, "EP0_OUT_DATA_PHASE"); + break; + case EP0_IN_STATUS_PHASE: + dwc_strcpy(str, "EP0_IN_STATUS_PHASE"); + break; + case EP0_OUT_STATUS_PHASE: + dwc_strcpy(str, "EP0_OUT_STATUS_PHASE"); + break; + case EP0_STALL: + dwc_strcpy(str, "EP0_STALL"); + break; + default: + dwc_strcpy(str, "EP0_INVALID"); + } + + DWC_DEBUGPL(DBG_ANY, "%s(%d)\n", str, pcd->ep0state); +#endif +} + +/** + * This function calculate the size of the payload in the memory + * for out endpoints and prints size for debug purposes(used in + * 2.93a DevOutNak feature). + */ +static inline void print_memory_payload(dwc_otg_pcd_t * pcd, dwc_ep_t * ep) +{ +#ifdef DEBUG + deptsiz_data_t deptsiz_init = {.d32 = 0 }; + deptsiz_data_t deptsiz_updt = {.d32 = 0 }; + int pack_num; + unsigned payload; + + deptsiz_init.d32 = pcd->core_if->start_doeptsiz_val[ep->num]; + deptsiz_updt.d32 = + DWC_READ_REG32(&pcd->core_if->dev_if-> + out_ep_regs[ep->num]->doeptsiz); + /* Payload will be */ + payload = deptsiz_init.b.xfersize - deptsiz_updt.b.xfersize; + /* Packet count is decremented every time a packet + * is written to the RxFIFO not in to the external memory + * So, if payload == 0, then it means no packet was sent to ext memory*/ + pack_num = (!payload) ? 0 : (deptsiz_init.b.pktcnt - deptsiz_updt.b.pktcnt); + DWC_DEBUGPL(DBG_PCDV, + "Payload for EP%d-%s\n", + ep->num, (ep->is_in ? "IN" : "OUT")); + DWC_DEBUGPL(DBG_PCDV, + "Number of transfered bytes = 0x%08x\n", payload); + DWC_DEBUGPL(DBG_PCDV, + "Number of transfered packets = %d\n", pack_num); +#endif +} + + +#ifdef DWC_UTE_CFI +static inline void print_desc(struct dwc_otg_dma_desc *ddesc, + const uint8_t * epname, int descnum) +{ + CFI_INFO + ("%s DMA_DESC(%d) buf=0x%08x bytes=0x%04x; sp=0x%x; l=0x%x; sts=0x%02x; bs=0x%02x\n", + epname, descnum, ddesc->buf, ddesc->status.b.bytes, + ddesc->status.b.sp, ddesc->status.b.l, ddesc->status.b.sts, + ddesc->status.b.bs); +} +#endif + +/** + * This function returns pointer to in ep struct with number ep_num + */ +static inline dwc_otg_pcd_ep_t *get_in_ep(dwc_otg_pcd_t * pcd, uint32_t ep_num) +{ + int i; + int num_in_eps = GET_CORE_IF(pcd)->dev_if->num_in_eps; + if (ep_num == 0) { + return &pcd->ep0; + } else { + for (i = 0; i < num_in_eps; ++i) { + if (pcd->in_ep[i].dwc_ep.num == ep_num) + return &pcd->in_ep[i]; + } + return 0; + } +} + +/** + * This function returns pointer to out ep struct with number ep_num + */ +static inline dwc_otg_pcd_ep_t *get_out_ep(dwc_otg_pcd_t * pcd, uint32_t ep_num) +{ + int i; + int num_out_eps = GET_CORE_IF(pcd)->dev_if->num_out_eps; + if (ep_num == 0) { + return &pcd->ep0; + } else { + for (i = 0; i < num_out_eps; ++i) { + if (pcd->out_ep[i].dwc_ep.num == ep_num) + return &pcd->out_ep[i]; + } + return 0; + } +} + +/** + * This functions gets a pointer to an EP from the wIndex address + * value of the control request. + */ +dwc_otg_pcd_ep_t *get_ep_by_addr(dwc_otg_pcd_t * pcd, u16 wIndex) +{ + dwc_otg_pcd_ep_t *ep; + uint32_t ep_num = UE_GET_ADDR(wIndex); + + if (ep_num == 0) { + ep = &pcd->ep0; + } else if (UE_GET_DIR(wIndex) == UE_DIR_IN) { /* in ep */ + ep = &pcd->in_ep[ep_num - 1]; + } else { + ep = &pcd->out_ep[ep_num - 1]; + } + + return ep; +} + +/** + * This function checks the EP request queue, if the queue is not + * empty the next request is started. + */ +void start_next_request(dwc_otg_pcd_ep_t * ep) +{ + dwc_otg_pcd_request_t *req = 0; + uint32_t max_transfer = + GET_CORE_IF(ep->pcd)->core_params->max_transfer_size; + +#ifdef DWC_UTE_CFI + struct dwc_otg_pcd *pcd; + pcd = ep->pcd; +#endif + + if (!DWC_CIRCLEQ_EMPTY(&ep->queue)) { + req = DWC_CIRCLEQ_FIRST(&ep->queue); + +#ifdef DWC_UTE_CFI + if (ep->dwc_ep.buff_mode != BM_STANDARD) { + ep->dwc_ep.cfi_req_len = req->length; + pcd->cfi->ops.build_descriptors(pcd->cfi, pcd, ep, req); + } else { +#endif + /* Setup and start the Transfer */ + if (req->dw_align_buf) { + ep->dwc_ep.dma_addr = req->dw_align_buf_dma; + ep->dwc_ep.start_xfer_buff = req->dw_align_buf; + ep->dwc_ep.xfer_buff = req->dw_align_buf; + } else { + ep->dwc_ep.dma_addr = req->dma; + ep->dwc_ep.start_xfer_buff = req->buf; + ep->dwc_ep.xfer_buff = req->buf; + } + ep->dwc_ep.sent_zlp = 0; + ep->dwc_ep.total_len = req->length; + ep->dwc_ep.xfer_len = 0; + ep->dwc_ep.xfer_count = 0; + + ep->dwc_ep.maxxfer = max_transfer; + if (GET_CORE_IF(ep->pcd)->dma_desc_enable) { + uint32_t out_max_xfer = DDMA_MAX_TRANSFER_SIZE + - (DDMA_MAX_TRANSFER_SIZE % 4); + if (ep->dwc_ep.is_in) { + if (ep->dwc_ep.maxxfer > + DDMA_MAX_TRANSFER_SIZE) { + ep->dwc_ep.maxxfer = + DDMA_MAX_TRANSFER_SIZE; + } + } else { + if (ep->dwc_ep.maxxfer > out_max_xfer) { + ep->dwc_ep.maxxfer = + out_max_xfer; + } + } + } + if (ep->dwc_ep.maxxfer < ep->dwc_ep.total_len) { + ep->dwc_ep.maxxfer -= + (ep->dwc_ep.maxxfer % ep->dwc_ep.maxpacket); + } + if (req->sent_zlp) { + if ((ep->dwc_ep.total_len % + ep->dwc_ep.maxpacket == 0) + && (ep->dwc_ep.total_len != 0)) { + ep->dwc_ep.sent_zlp = 1; + } + + } +#ifdef DWC_UTE_CFI + } +#endif + dwc_otg_ep_start_transfer(GET_CORE_IF(ep->pcd), &ep->dwc_ep); + } else if (ep->dwc_ep.type == DWC_OTG_EP_TYPE_ISOC) { + DWC_PRINTF("There are no more ISOC requests \n"); + ep->dwc_ep.frame_num = 0xFFFFFFFF; + } +} + +/** + * This function handles the SOF Interrupts. At this time the SOF + * Interrupt is disabled. + */ +int32_t dwc_otg_pcd_handle_sof_intr(dwc_otg_pcd_t * pcd) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + + gintsts_data_t gintsts; + + DWC_DEBUGPL(DBG_PCD, "SOF\n"); + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.sofintr = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32); + + return 1; +} + +/** + * This function handles the Rx Status Queue Level Interrupt, which + * indicates that there is a least one packet in the Rx FIFO. The + * packets are moved from the FIFO to memory, where they will be + * processed when the Endpoint Interrupt Register indicates Transfer + * Complete or SETUP Phase Done. + * + * Repeat the following until the Rx Status Queue is empty: + * -# Read the Receive Status Pop Register (GRXSTSP) to get Packet + * info + * -# If Receive FIFO is empty then skip to step Clear the interrupt + * and exit + * -# If SETUP Packet call dwc_otg_read_setup_packet to copy the + * SETUP data to the buffer + * -# If OUT Data Packet call dwc_otg_read_packet to copy the data + * to the destination buffer + */ +int32_t dwc_otg_pcd_handle_rx_status_q_level_intr(dwc_otg_pcd_t * pcd) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + gintmsk_data_t gintmask = {.d32 = 0 }; + device_grxsts_data_t status; + dwc_otg_pcd_ep_t *ep; + gintsts_data_t gintsts; +#ifdef DEBUG + static char *dpid_str[] = { "D0", "D2", "D1", "MDATA" }; +#endif + + //DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, _pcd); + /* Disable the Rx Status Queue Level interrupt */ + gintmask.b.rxstsqlvl = 1; + DWC_MODIFY_REG32(&global_regs->gintmsk, gintmask.d32, 0); + + /* Get the Status from the top of the FIFO */ + status.d32 = DWC_READ_REG32(&global_regs->grxstsp); + + DWC_DEBUGPL(DBG_PCD, "EP:%d BCnt:%d DPID:%s " + "pktsts:%x Frame:%d(0x%0x)\n", + status.b.epnum, status.b.bcnt, + dpid_str[status.b.dpid], + status.b.pktsts, status.b.fn, status.b.fn); + /* Get pointer to EP structure */ + ep = get_out_ep(pcd, status.b.epnum); + + switch (status.b.pktsts) { + case DWC_DSTS_GOUT_NAK: + DWC_DEBUGPL(DBG_PCDV, "Global OUT NAK\n"); + break; + case DWC_STS_DATA_UPDT: + DWC_DEBUGPL(DBG_PCDV, "OUT Data Packet\n"); + if (status.b.bcnt && ep->dwc_ep.xfer_buff) { + /** @todo NGS Check for buffer overflow? */ + dwc_otg_read_packet(core_if, + ep->dwc_ep.xfer_buff, + status.b.bcnt); + ep->dwc_ep.xfer_count += status.b.bcnt; + ep->dwc_ep.xfer_buff += status.b.bcnt; + } + break; + case DWC_STS_XFER_COMP: + DWC_DEBUGPL(DBG_PCDV, "OUT Complete\n"); + break; + case DWC_DSTS_SETUP_COMP: +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCDV, "Setup Complete\n"); +#endif + break; + case DWC_DSTS_SETUP_UPDT: + dwc_otg_read_setup_packet(core_if, pcd->setup_pkt->d32); +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCD, + "SETUP PKT: %02x.%02x v%04x i%04x l%04x\n", + pcd->setup_pkt->req.bmRequestType, + pcd->setup_pkt->req.bRequest, + UGETW(pcd->setup_pkt->req.wValue), + UGETW(pcd->setup_pkt->req.wIndex), + UGETW(pcd->setup_pkt->req.wLength)); +#endif + ep->dwc_ep.xfer_count += status.b.bcnt; + break; + default: + DWC_DEBUGPL(DBG_PCDV, "Invalid Packet Status (0x%0x)\n", + status.b.pktsts); + break; + } + + /* Enable the Rx Status Queue Level interrupt */ + DWC_MODIFY_REG32(&global_regs->gintmsk, 0, gintmask.d32); + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.rxstsqlvl = 1; + DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32); + + //DWC_DEBUGPL(DBG_PCDV, "EXIT: %s\n", __func__); + return 1; +} + +/** + * This function examines the Device IN Token Learning Queue to + * determine the EP number of the last IN token received. This + * implementation is for the Mass Storage device where there are only + * 2 IN EPs (Control-IN and BULK-IN). + * + * The EP numbers for the first six IN Tokens are in DTKNQR1 and there + * are 8 EP Numbers in each of the other possible DTKNQ Registers. + * + * @param core_if Programming view of DWC_otg controller. + * + */ +static inline int get_ep_of_last_in_token(dwc_otg_core_if_t * core_if) +{ + dwc_otg_device_global_regs_t *dev_global_regs = + core_if->dev_if->dev_global_regs; + const uint32_t TOKEN_Q_DEPTH = core_if->hwcfg2.b.dev_token_q_depth; + /* Number of Token Queue Registers */ + const int DTKNQ_REG_CNT = (TOKEN_Q_DEPTH + 7) / 8; + dtknq1_data_t dtknqr1; + uint32_t in_tkn_epnums[4]; + int ndx = 0; + int i = 0; + volatile uint32_t *addr = &dev_global_regs->dtknqr1; + int epnum = 0; + + //DWC_DEBUGPL(DBG_PCD,"dev_token_q_depth=%d\n",TOKEN_Q_DEPTH); + + /* Read the DTKNQ Registers */ + for (i = 0; i < DTKNQ_REG_CNT; i++) { + in_tkn_epnums[i] = DWC_READ_REG32(addr); + DWC_DEBUGPL(DBG_PCDV, "DTKNQR%d=0x%08x\n", i + 1, + in_tkn_epnums[i]); + if (addr == &dev_global_regs->dvbusdis) { + addr = &dev_global_regs->dtknqr3_dthrctl; + } else { + ++addr; + } + + } + + /* Copy the DTKNQR1 data to the bit field. */ + dtknqr1.d32 = in_tkn_epnums[0]; + /* Get the EP numbers */ + in_tkn_epnums[0] = dtknqr1.b.epnums0_5; + ndx = dtknqr1.b.intknwptr - 1; + + //DWC_DEBUGPL(DBG_PCDV,"ndx=%d\n",ndx); + if (ndx == -1) { + /** @todo Find a simpler way to calculate the max + * queue position.*/ + int cnt = TOKEN_Q_DEPTH; + if (TOKEN_Q_DEPTH <= 6) { + cnt = TOKEN_Q_DEPTH - 1; + } else if (TOKEN_Q_DEPTH <= 14) { + cnt = TOKEN_Q_DEPTH - 7; + } else if (TOKEN_Q_DEPTH <= 22) { + cnt = TOKEN_Q_DEPTH - 15; + } else { + cnt = TOKEN_Q_DEPTH - 23; + } + epnum = (in_tkn_epnums[DTKNQ_REG_CNT - 1] >> (cnt * 4)) & 0xF; + } else { + if (ndx <= 5) { + epnum = (in_tkn_epnums[0] >> (ndx * 4)) & 0xF; + } else if (ndx <= 13) { + ndx -= 6; + epnum = (in_tkn_epnums[1] >> (ndx * 4)) & 0xF; + } else if (ndx <= 21) { + ndx -= 14; + epnum = (in_tkn_epnums[2] >> (ndx * 4)) & 0xF; + } else if (ndx <= 29) { + ndx -= 22; + epnum = (in_tkn_epnums[3] >> (ndx * 4)) & 0xF; + } + } + //DWC_DEBUGPL(DBG_PCD,"epnum=%d\n",epnum); + return epnum; +} + +/** + * This interrupt occurs when the non-periodic Tx FIFO is half-empty. + * The active request is checked for the next packet to be loaded into + * the non-periodic Tx FIFO. + */ +int32_t dwc_otg_pcd_handle_np_tx_fifo_empty_intr(dwc_otg_pcd_t * pcd) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + dwc_otg_dev_in_ep_regs_t *ep_regs; + gnptxsts_data_t txstatus = {.d32 = 0 }; + gintsts_data_t gintsts; + + int epnum = 0; + dwc_otg_pcd_ep_t *ep = 0; + uint32_t len = 0; + int dwords; + + /* Get the epnum from the IN Token Learning Queue. */ + epnum = get_ep_of_last_in_token(core_if); + ep = get_in_ep(pcd, epnum); + + DWC_DEBUGPL(DBG_PCD, "NP TxFifo Empty: %d \n", epnum); + + ep_regs = core_if->dev_if->in_ep_regs[epnum]; + + len = ep->dwc_ep.xfer_len - ep->dwc_ep.xfer_count; + if (len > ep->dwc_ep.maxpacket) { + len = ep->dwc_ep.maxpacket; + } + dwords = (len + 3) / 4; + + /* While there is space in the queue and space in the FIFO and + * More data to tranfer, Write packets to the Tx FIFO */ + txstatus.d32 = DWC_READ_REG32(&global_regs->gnptxsts); + DWC_DEBUGPL(DBG_PCDV, "b4 GNPTXSTS=0x%08x\n", txstatus.d32); + + while (txstatus.b.nptxqspcavail > 0 && + txstatus.b.nptxfspcavail > dwords && + ep->dwc_ep.xfer_count < ep->dwc_ep.xfer_len) { + /* Write the FIFO */ + dwc_otg_ep_write_packet(core_if, &ep->dwc_ep, 0); + len = ep->dwc_ep.xfer_len - ep->dwc_ep.xfer_count; + + if (len > ep->dwc_ep.maxpacket) { + len = ep->dwc_ep.maxpacket; + } + + dwords = (len + 3) / 4; + txstatus.d32 = DWC_READ_REG32(&global_regs->gnptxsts); + DWC_DEBUGPL(DBG_PCDV, "GNPTXSTS=0x%08x\n", txstatus.d32); + } + + DWC_DEBUGPL(DBG_PCDV, "GNPTXSTS=0x%08x\n", + DWC_READ_REG32(&global_regs->gnptxsts)); + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.nptxfempty = 1; + DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32); + + return 1; +} + +/** + * This function is called when dedicated Tx FIFO Empty interrupt occurs. + * The active request is checked for the next packet to be loaded into + * apropriate Tx FIFO. + */ +static int32_t write_empty_tx_fifo(dwc_otg_pcd_t * pcd, uint32_t epnum) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + dwc_otg_dev_in_ep_regs_t *ep_regs; + dtxfsts_data_t txstatus = {.d32 = 0 }; + dwc_otg_pcd_ep_t *ep = 0; + uint32_t len = 0; + int dwords; + + ep = get_in_ep(pcd, epnum); + + DWC_DEBUGPL(DBG_PCD, "Dedicated TxFifo Empty: %d \n", epnum); + + ep_regs = core_if->dev_if->in_ep_regs[epnum]; + + len = ep->dwc_ep.xfer_len - ep->dwc_ep.xfer_count; + + if (len > ep->dwc_ep.maxpacket) { + len = ep->dwc_ep.maxpacket; + } + + dwords = (len + 3) / 4; + + /* While there is space in the queue and space in the FIFO and + * More data to tranfer, Write packets to the Tx FIFO */ + txstatus.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->dtxfsts); + DWC_DEBUGPL(DBG_PCDV, "b4 dtxfsts[%d]=0x%08x\n", epnum, txstatus.d32); + + while (txstatus.b.txfspcavail > dwords && + ep->dwc_ep.xfer_count < ep->dwc_ep.xfer_len && + ep->dwc_ep.xfer_len != 0) { + /* Write the FIFO */ + dwc_otg_ep_write_packet(core_if, &ep->dwc_ep, 0); + + len = ep->dwc_ep.xfer_len - ep->dwc_ep.xfer_count; + if (len > ep->dwc_ep.maxpacket) { + len = ep->dwc_ep.maxpacket; + } + + dwords = (len + 3) / 4; + txstatus.d32 = + DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->dtxfsts); + DWC_DEBUGPL(DBG_PCDV, "dtxfsts[%d]=0x%08x\n", epnum, + txstatus.d32); + } + + DWC_DEBUGPL(DBG_PCDV, "b4 dtxfsts[%d]=0x%08x\n", epnum, + DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->dtxfsts)); + + return 1; +} + +/** + * This function is called when the Device is disconnected. It stops + * any active requests and informs the Gadget driver of the + * disconnect. + */ +void dwc_otg_pcd_stop(dwc_otg_pcd_t * pcd) +{ + int i, num_in_eps, num_out_eps; + dwc_otg_pcd_ep_t *ep; + + gintmsk_data_t intr_mask = {.d32 = 0 }; + + DWC_SPINLOCK(pcd->lock); + + num_in_eps = GET_CORE_IF(pcd)->dev_if->num_in_eps; + num_out_eps = GET_CORE_IF(pcd)->dev_if->num_out_eps; + + DWC_DEBUGPL(DBG_PCDV, "%s() \n", __func__); + /* don't disconnect drivers more than once */ + if (pcd->ep0state == EP0_DISCONNECT) { + DWC_DEBUGPL(DBG_ANY, "%s() Already Disconnected\n", __func__); + DWC_SPINUNLOCK(pcd->lock); + return; + } + pcd->ep0state = EP0_DISCONNECT; + + /* Reset the OTG state. */ + dwc_otg_pcd_update_otg(pcd, 1); + + /* Disable the NP Tx Fifo Empty Interrupt. */ + intr_mask.b.nptxfempty = 1; + DWC_MODIFY_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, + intr_mask.d32, 0); + + /* Flush the FIFOs */ + /**@todo NGS Flush Periodic FIFOs */ + dwc_otg_flush_tx_fifo(GET_CORE_IF(pcd), 0x10); + dwc_otg_flush_rx_fifo(GET_CORE_IF(pcd)); + + /* prevent new request submissions, kill any outstanding requests */ + ep = &pcd->ep0; + dwc_otg_request_nuke(ep); + /* prevent new request submissions, kill any outstanding requests */ + for (i = 0; i < num_in_eps; i++) { + dwc_otg_pcd_ep_t *ep = &pcd->in_ep[i]; + dwc_otg_request_nuke(ep); + } + /* prevent new request submissions, kill any outstanding requests */ + for (i = 0; i < num_out_eps; i++) { + dwc_otg_pcd_ep_t *ep = &pcd->out_ep[i]; + dwc_otg_request_nuke(ep); + } + + /* report disconnect; the driver is already quiesced */ + if (pcd->fops->disconnect) { + DWC_SPINUNLOCK(pcd->lock); + pcd->fops->disconnect(pcd); + DWC_SPINLOCK(pcd->lock); + } + DWC_SPINUNLOCK(pcd->lock); +} + +/** + * This interrupt indicates that ... + */ +int32_t dwc_otg_pcd_handle_i2c_intr(dwc_otg_pcd_t * pcd) +{ + gintmsk_data_t intr_mask = {.d32 = 0 }; + gintsts_data_t gintsts; + + DWC_PRINTF("INTERRUPT Handler not implemented for %s\n", "i2cintr"); + intr_mask.b.i2cintr = 1; + DWC_MODIFY_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, + intr_mask.d32, 0); + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.i2cintr = 1; + DWC_WRITE_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintsts, + gintsts.d32); + return 1; +} + +/** + * This interrupt indicates that ... + */ +int32_t dwc_otg_pcd_handle_early_suspend_intr(dwc_otg_pcd_t * pcd) +{ + gintsts_data_t gintsts; +#if defined(VERBOSE) + DWC_PRINTF("Early Suspend Detected\n"); +#endif + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.erlysuspend = 1; + DWC_WRITE_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintsts, + gintsts.d32); + return 1; +} + +/** + * This function configures EPO to receive SETUP packets. + * + * @todo NGS: Update the comments from the HW FS. + * + * -# Program the following fields in the endpoint specific registers + * for Control OUT EP 0, in order to receive a setup packet + * - DOEPTSIZ0.Packet Count = 3 (To receive up to 3 back to back + * setup packets) + * - DOEPTSIZE0.Transfer Size = 24 Bytes (To receive up to 3 back + * to back setup packets) + * - In DMA mode, DOEPDMA0 Register with a memory address to + * store any setup packets received + * + * @param core_if Programming view of DWC_otg controller. + * @param pcd Programming view of the PCD. + */ +static inline void ep0_out_start(dwc_otg_core_if_t * core_if, + dwc_otg_pcd_t * pcd) +{ + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + deptsiz0_data_t doeptsize0 = {.d32 = 0 }; + dwc_otg_dev_dma_desc_t *dma_desc; + depctl_data_t doepctl = {.d32 = 0 }; + +#ifdef VERBOSE + DWC_DEBUGPL(DBG_PCDV, "%s() doepctl0=%0x\n", __func__, + DWC_READ_REG32(&dev_if->out_ep_regs[0]->doepctl)); +#endif + if (core_if->snpsid >= OTG_CORE_REV_3_00a) { + doepctl.d32 = DWC_READ_REG32(&dev_if->out_ep_regs[0]->doepctl); + if (doepctl.b.epena) { + return; + } + } + + doeptsize0.b.supcnt = 3; + doeptsize0.b.pktcnt = 1; + doeptsize0.b.xfersize = 8 * 3; + + if (core_if->dma_enable) { + if (!core_if->dma_desc_enable) { + /** put here as for Hermes mode deptisz register should not be written */ + DWC_WRITE_REG32(&dev_if->out_ep_regs[0]->doeptsiz, + doeptsize0.d32); + + /** @todo dma needs to handle multiple setup packets (up to 3) */ + DWC_WRITE_REG32(&dev_if->out_ep_regs[0]->doepdma, + pcd->setup_pkt_dma_handle); + } else { + dev_if->setup_desc_index = + (dev_if->setup_desc_index + 1) & 1; + dma_desc = + dev_if->setup_desc_addr[dev_if->setup_desc_index]; + + /** DMA Descriptor Setup */ + dma_desc->status.b.bs = BS_HOST_BUSY; + if (core_if->snpsid >= OTG_CORE_REV_3_00a) { + dma_desc->status.b.sr = 0; + dma_desc->status.b.mtrf = 0; + } + dma_desc->status.b.l = 1; + dma_desc->status.b.ioc = 1; + dma_desc->status.b.bytes = pcd->ep0.dwc_ep.maxpacket; + dma_desc->buf = pcd->setup_pkt_dma_handle; + dma_desc->status.b.sts = 0; + dma_desc->status.b.bs = BS_HOST_READY; + + /** DOEPDMA0 Register write */ + DWC_WRITE_REG32(&dev_if->out_ep_regs[0]->doepdma, + dev_if->dma_setup_desc_addr + [dev_if->setup_desc_index]); + } + + } else { + /** put here as for Hermes mode deptisz register should not be written */ + DWC_WRITE_REG32(&dev_if->out_ep_regs[0]->doeptsiz, + doeptsize0.d32); + } + + /** DOEPCTL0 Register write cnak will be set after setup interrupt */ + doepctl.d32 = 0; + doepctl.b.epena = 1; + if (core_if->snpsid <= OTG_CORE_REV_2_94a) { + doepctl.b.cnak = 1; + DWC_WRITE_REG32(&dev_if->out_ep_regs[0]->doepctl, doepctl.d32); + } else { + DWC_MODIFY_REG32(&dev_if->out_ep_regs[0]->doepctl, 0, doepctl.d32); + } + +#ifdef VERBOSE + DWC_DEBUGPL(DBG_PCDV, "doepctl0=%0x\n", + DWC_READ_REG32(&dev_if->out_ep_regs[0]->doepctl)); + DWC_DEBUGPL(DBG_PCDV, "diepctl0=%0x\n", + DWC_READ_REG32(&dev_if->in_ep_regs[0]->diepctl)); +#endif +} + +/** + * This interrupt occurs when a USB Reset is detected. When the USB + * Reset Interrupt occurs the device state is set to DEFAULT and the + * EP0 state is set to IDLE. + * -# Set the NAK bit for all OUT endpoints (DOEPCTLn.SNAK = 1) + * -# Unmask the following interrupt bits + * - DAINTMSK.INEP0 = 1 (Control 0 IN endpoint) + * - DAINTMSK.OUTEP0 = 1 (Control 0 OUT endpoint) + * - DOEPMSK.SETUP = 1 + * - DOEPMSK.XferCompl = 1 + * - DIEPMSK.XferCompl = 1 + * - DIEPMSK.TimeOut = 1 + * -# Program the following fields in the endpoint specific registers + * for Control OUT EP 0, in order to receive a setup packet + * - DOEPTSIZ0.Packet Count = 3 (To receive up to 3 back to back + * setup packets) + * - DOEPTSIZE0.Transfer Size = 24 Bytes (To receive up to 3 back + * to back setup packets) + * - In DMA mode, DOEPDMA0 Register with a memory address to + * store any setup packets received + * At this point, all the required initialization, except for enabling + * the control 0 OUT endpoint is done, for receiving SETUP packets. + */ +int32_t dwc_otg_pcd_handle_usb_reset_intr(dwc_otg_pcd_t * pcd) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + depctl_data_t doepctl = {.d32 = 0 }; + depctl_data_t diepctl = {.d32 = 0 }; + daint_data_t daintmsk = {.d32 = 0 }; + doepmsk_data_t doepmsk = {.d32 = 0 }; + diepmsk_data_t diepmsk = {.d32 = 0 }; + dcfg_data_t dcfg = {.d32 = 0 }; + grstctl_t resetctl = {.d32 = 0 }; + dctl_data_t dctl = {.d32 = 0 }; + int i = 0; + gintsts_data_t gintsts; + pcgcctl_data_t power = {.d32 = 0 }; + + power.d32 = DWC_READ_REG32(core_if->pcgcctl); + if (power.b.stoppclk) { + power.d32 = 0; + power.b.stoppclk = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, power.d32, 0); + + power.b.pwrclmp = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, power.d32, 0); + + power.b.rstpdwnmodule = 1; + DWC_MODIFY_REG32(core_if->pcgcctl, power.d32, 0); + } + + core_if->lx_state = DWC_OTG_L0; + + DWC_PRINTF("USB RESET\n"); +#ifdef DWC_EN_ISOC + for (i = 1; i < 16; ++i) { + dwc_otg_pcd_ep_t *ep; + dwc_ep_t *dwc_ep; + ep = get_in_ep(pcd, i); + if (ep != 0) { + dwc_ep = &ep->dwc_ep; + dwc_ep->next_frame = 0xffffffff; + } + } +#endif /* DWC_EN_ISOC */ + + /* reset the HNP settings */ + dwc_otg_pcd_update_otg(pcd, 1); + + /* Clear the Remote Wakeup Signalling */ + dctl.b.rmtwkupsig = 1; + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32, 0); + + /* Set NAK for all OUT EPs */ + doepctl.b.snak = 1; + for (i = 0; i <= dev_if->num_out_eps; i++) { + DWC_WRITE_REG32(&dev_if->out_ep_regs[i]->doepctl, doepctl.d32); + } + + /* Flush the NP Tx FIFO */ + dwc_otg_flush_tx_fifo(core_if, 0x10); + /* Flush the Learning Queue */ + resetctl.b.intknqflsh = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->grstctl, resetctl.d32); + + if (!core_if->core_params->en_multiple_tx_fifo && core_if->dma_enable) { + core_if->start_predict = 0; + for (i = 0; i<= core_if->dev_if->num_in_eps; ++i) { + core_if->nextep_seq[i] = 0xff; // 0xff - EP not active + } + core_if->nextep_seq[0] = 0; + core_if->first_in_nextep_seq = 0; + diepctl.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[0]->diepctl); + diepctl.b.nextep = 0; + DWC_WRITE_REG32(&dev_if->in_ep_regs[0]->diepctl, diepctl.d32); + + /* Update IN Endpoint Mismatch Count by active IN NP EP count + 1 */ + dcfg.d32 = DWC_READ_REG32(&dev_if->dev_global_regs->dcfg); + dcfg.b.epmscnt = 2; + DWC_WRITE_REG32(&dev_if->dev_global_regs->dcfg, dcfg.d32); + + DWC_DEBUGPL(DBG_PCDV, + "%s first_in_nextep_seq= %2d; nextep_seq[]:\n", + __func__, core_if->first_in_nextep_seq); + for (i=0; i <= core_if->dev_if->num_in_eps; i++) { + DWC_DEBUGPL(DBG_PCDV, "%2d\n", core_if->nextep_seq[i]); + } + } + + if (core_if->multiproc_int_enable) { + daintmsk.b.inep0 = 1; + daintmsk.b.outep0 = 1; + DWC_WRITE_REG32(&dev_if->dev_global_regs->deachintmsk, + daintmsk.d32); + + doepmsk.b.setup = 1; + doepmsk.b.xfercompl = 1; + doepmsk.b.ahberr = 1; + doepmsk.b.epdisabled = 1; + + if ((core_if->dma_desc_enable) || + (core_if->dma_enable + && core_if->snpsid >= OTG_CORE_REV_3_00a)) { + doepmsk.b.stsphsercvd = 1; + } + if (core_if->dma_desc_enable) + doepmsk.b.bna = 1; +/* + doepmsk.b.babble = 1; + doepmsk.b.nyet = 1; + + if (core_if->dma_enable) { + doepmsk.b.nak = 1; + } +*/ + DWC_WRITE_REG32(&dev_if->dev_global_regs->doepeachintmsk[0], + doepmsk.d32); + + diepmsk.b.xfercompl = 1; + diepmsk.b.timeout = 1; + diepmsk.b.epdisabled = 1; + diepmsk.b.ahberr = 1; + diepmsk.b.intknepmis = 1; + if (!core_if->en_multiple_tx_fifo && core_if->dma_enable) + diepmsk.b.intknepmis = 0; + +/* if (core_if->dma_desc_enable) { + diepmsk.b.bna = 1; + } +*/ +/* + if (core_if->dma_enable) { + diepmsk.b.nak = 1; + } +*/ + DWC_WRITE_REG32(&dev_if->dev_global_regs->diepeachintmsk[0], + diepmsk.d32); + } else { + daintmsk.b.inep0 = 1; + daintmsk.b.outep0 = 1; + DWC_WRITE_REG32(&dev_if->dev_global_regs->daintmsk, + daintmsk.d32); + + doepmsk.b.setup = 1; + doepmsk.b.xfercompl = 1; + doepmsk.b.ahberr = 1; + doepmsk.b.epdisabled = 1; + + if ((core_if->dma_desc_enable) || + (core_if->dma_enable + && core_if->snpsid >= OTG_CORE_REV_3_00a)) { + doepmsk.b.stsphsercvd = 1; + } + if (core_if->dma_desc_enable) + doepmsk.b.bna = 1; + DWC_WRITE_REG32(&dev_if->dev_global_regs->doepmsk, doepmsk.d32); + + diepmsk.b.xfercompl = 1; + diepmsk.b.timeout = 1; + diepmsk.b.epdisabled = 1; + diepmsk.b.ahberr = 1; + if (!core_if->en_multiple_tx_fifo && core_if->dma_enable) + diepmsk.b.intknepmis = 0; +/* + if (core_if->dma_desc_enable) { + diepmsk.b.bna = 1; + } +*/ + + DWC_WRITE_REG32(&dev_if->dev_global_regs->diepmsk, diepmsk.d32); + } + + /* Reset Device Address */ + dcfg.d32 = DWC_READ_REG32(&dev_if->dev_global_regs->dcfg); + dcfg.b.devaddr = 0; + DWC_WRITE_REG32(&dev_if->dev_global_regs->dcfg, dcfg.d32); + + /* setup EP0 to receive SETUP packets */ + if (core_if->snpsid <= OTG_CORE_REV_2_94a) + ep0_out_start(core_if, pcd); + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.usbreset = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32); + + return 1; +} + +/** + * Get the device speed from the device status register and convert it + * to USB speed constant. + * + * @param core_if Programming view of DWC_otg controller. + */ +static int get_device_speed(dwc_otg_core_if_t * core_if) +{ + dsts_data_t dsts; + int speed = 0; + dsts.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dsts); + + switch (dsts.b.enumspd) { + case DWC_DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ: + speed = USB_SPEED_HIGH; + break; + case DWC_DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ: + case DWC_DSTS_ENUMSPD_FS_PHY_48MHZ: + speed = USB_SPEED_FULL; + break; + + case DWC_DSTS_ENUMSPD_LS_PHY_6MHZ: + speed = USB_SPEED_LOW; + break; + } + + return speed; +} + +/** + * Read the device status register and set the device speed in the + * data structure. + * Set up EP0 to receive SETUP packets by calling dwc_ep0_activate. + */ +int32_t dwc_otg_pcd_handle_enum_done_intr(dwc_otg_pcd_t * pcd) +{ + dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; + gintsts_data_t gintsts; + gusbcfg_data_t gusbcfg; + dwc_otg_core_global_regs_t *global_regs = + GET_CORE_IF(pcd)->core_global_regs; + uint8_t utmi16b, utmi8b; + int speed; + DWC_DEBUGPL(DBG_PCD, "SPEED ENUM\n"); + + if (GET_CORE_IF(pcd)->snpsid >= OTG_CORE_REV_2_60a) { + utmi16b = 6; //vahrama old value was 6; + utmi8b = 9; + } else { + utmi16b = 4; + utmi8b = 8; + } + dwc_otg_ep0_activate(GET_CORE_IF(pcd), &ep0->dwc_ep); + if (GET_CORE_IF(pcd)->snpsid >= OTG_CORE_REV_3_00a) { + ep0_out_start(GET_CORE_IF(pcd), pcd); + } + +#ifdef DEBUG_EP0 + print_ep0_state(pcd); +#endif + + if (pcd->ep0state == EP0_DISCONNECT) { + pcd->ep0state = EP0_IDLE; + } else if (pcd->ep0state == EP0_STALL) { + pcd->ep0state = EP0_IDLE; + } + + pcd->ep0state = EP0_IDLE; + + ep0->stopped = 0; + + speed = get_device_speed(GET_CORE_IF(pcd)); + pcd->fops->connect(pcd, speed); + + /* Set USB turnaround time based on device speed and PHY interface. */ + gusbcfg.d32 = DWC_READ_REG32(&global_regs->gusbcfg); + if (speed == USB_SPEED_HIGH) { + if (GET_CORE_IF(pcd)->hwcfg2.b.hs_phy_type == + DWC_HWCFG2_HS_PHY_TYPE_ULPI) { + /* ULPI interface */ + gusbcfg.b.usbtrdtim = 9; + } + if (GET_CORE_IF(pcd)->hwcfg2.b.hs_phy_type == + DWC_HWCFG2_HS_PHY_TYPE_UTMI) { + /* UTMI+ interface */ + if (GET_CORE_IF(pcd)->hwcfg4.b.utmi_phy_data_width == 0) { + gusbcfg.b.usbtrdtim = utmi8b; + } else if (GET_CORE_IF(pcd)->hwcfg4. + b.utmi_phy_data_width == 1) { + gusbcfg.b.usbtrdtim = utmi16b; + } else if (GET_CORE_IF(pcd)-> + core_params->phy_utmi_width == 8) { + gusbcfg.b.usbtrdtim = utmi8b; + } else { + gusbcfg.b.usbtrdtim = utmi16b; + } + } + if (GET_CORE_IF(pcd)->hwcfg2.b.hs_phy_type == + DWC_HWCFG2_HS_PHY_TYPE_UTMI_ULPI) { + /* UTMI+ OR ULPI interface */ + if (gusbcfg.b.ulpi_utmi_sel == 1) { + /* ULPI interface */ + gusbcfg.b.usbtrdtim = 9; + } else { + /* UTMI+ interface */ + if (GET_CORE_IF(pcd)-> + core_params->phy_utmi_width == 16) { + gusbcfg.b.usbtrdtim = utmi16b; + } else { + gusbcfg.b.usbtrdtim = utmi8b; + } + } + } + } else { + /* Full or low speed */ + gusbcfg.b.usbtrdtim = 9; + } + DWC_WRITE_REG32(&global_regs->gusbcfg, gusbcfg.d32); + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.enumdone = 1; + DWC_WRITE_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintsts, + gintsts.d32); + return 1; +} + +/** + * This interrupt indicates that the ISO OUT Packet was dropped due to + * Rx FIFO full or Rx Status Queue Full. If this interrupt occurs + * read all the data from the Rx FIFO. + */ +int32_t dwc_otg_pcd_handle_isoc_out_packet_dropped_intr(dwc_otg_pcd_t * pcd) +{ + gintmsk_data_t intr_mask = {.d32 = 0 }; + gintsts_data_t gintsts; + + DWC_WARN("INTERRUPT Handler not implemented for %s\n", + "ISOC Out Dropped"); + + intr_mask.b.isooutdrop = 1; + DWC_MODIFY_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, + intr_mask.d32, 0); + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.isooutdrop = 1; + DWC_WRITE_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintsts, + gintsts.d32); + + return 1; +} + +/** + * This interrupt indicates the end of the portion of the micro-frame + * for periodic transactions. If there is a periodic transaction for + * the next frame, load the packets into the EP periodic Tx FIFO. + */ +int32_t dwc_otg_pcd_handle_end_periodic_frame_intr(dwc_otg_pcd_t * pcd) +{ + gintmsk_data_t intr_mask = {.d32 = 0 }; + gintsts_data_t gintsts; + DWC_PRINTF("INTERRUPT Handler not implemented for %s\n", "EOP"); + + intr_mask.b.eopframe = 1; + DWC_MODIFY_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, + intr_mask.d32, 0); + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.eopframe = 1; + DWC_WRITE_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintsts, + gintsts.d32); + + return 1; +} + +/** + * This interrupt indicates that EP of the packet on the top of the + * non-periodic Tx FIFO does not match EP of the IN Token received. + * + * The "Device IN Token Queue" Registers are read to determine the + * order the IN Tokens have been received. The non-periodic Tx FIFO + * is flushed, so it can be reloaded in the order seen in the IN Token + * Queue. + */ +int32_t dwc_otg_pcd_handle_ep_mismatch_intr(dwc_otg_pcd_t * pcd) +{ + gintsts_data_t gintsts; + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dctl_data_t dctl; + gintmsk_data_t intr_mask = {.d32 = 0 }; + + if (!core_if->en_multiple_tx_fifo && core_if->dma_enable) { + core_if->start_predict = 1; + + DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, core_if); + + gintsts.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintsts); + if (!gintsts.b.ginnakeff) { + /* Disable EP Mismatch interrupt */ + intr_mask.d32 = 0; + intr_mask.b.epmismatch = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk, intr_mask.d32, 0); + /* Enable the Global IN NAK Effective Interrupt */ + intr_mask.d32 = 0; + intr_mask.b.ginnakeff = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk, 0, intr_mask.d32); + /* Set the global non-periodic IN NAK handshake */ + dctl.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dctl); + dctl.b.sgnpinnak = 1; + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32); + } else { + DWC_PRINTF("gintsts.b.ginnakeff = 1! dctl.b.sgnpinnak not set\n"); + } + /* Disabling of all EP's will be done in dwc_otg_pcd_handle_in_nak_effective() + * handler after Global IN NAK Effective interrupt will be asserted */ + } + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.epmismatch = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32); + + return 1; +} + +/** + * This interrupt is valid only in DMA mode. This interrupt indicates that the + * core has stopped fetching data for IN endpoints due to the unavailability of + * TxFIFO space or Request Queue space. This interrupt is used by the + * application for an endpoint mismatch algorithm. + * + * @param pcd The PCD + */ +int32_t dwc_otg_pcd_handle_ep_fetsusp_intr(dwc_otg_pcd_t * pcd) +{ + gintsts_data_t gintsts; + gintmsk_data_t gintmsk_data; + dctl_data_t dctl; + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, core_if); + + /* Clear the global non-periodic IN NAK handshake */ + dctl.d32 = 0; + dctl.b.cgnpinnak = 1; + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32, dctl.d32); + + /* Mask GINTSTS.FETSUSP interrupt */ + gintmsk_data.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintmsk); + gintmsk_data.b.fetsusp = 0; + DWC_WRITE_REG32(&core_if->core_global_regs->gintmsk, gintmsk_data.d32); + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.fetsusp = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32); + + return 1; +} +/** + * This funcion stalls EP0. + */ +static inline void ep0_do_stall(dwc_otg_pcd_t * pcd, const int err_val) +{ + dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; + usb_device_request_t *ctrl = &pcd->setup_pkt->req; + DWC_WARN("req %02x.%02x protocol STALL; err %d\n", + ctrl->bmRequestType, ctrl->bRequest, err_val); + + ep0->dwc_ep.is_in = 1; + dwc_otg_ep_set_stall(GET_CORE_IF(pcd), &ep0->dwc_ep); + pcd->ep0.stopped = 1; + pcd->ep0state = EP0_IDLE; + ep0_out_start(GET_CORE_IF(pcd), pcd); +} + +/** + * This functions delegates the setup command to the gadget driver. + */ +static inline void do_gadget_setup(dwc_otg_pcd_t * pcd, + usb_device_request_t * ctrl) +{ + int ret = 0; + DWC_SPINUNLOCK(pcd->lock); + ret = pcd->fops->setup(pcd, (uint8_t *) ctrl); + DWC_SPINLOCK(pcd->lock); + if (ret < 0) { + ep0_do_stall(pcd, ret); + } + + /** @todo This is a g_file_storage gadget driver specific + * workaround: a DELAYED_STATUS result from the fsg_setup + * routine will result in the gadget queueing a EP0 IN status + * phase for a two-stage control transfer. Exactly the same as + * a SET_CONFIGURATION/SET_INTERFACE except that this is a class + * specific request. Need a generic way to know when the gadget + * driver will queue the status phase. Can we assume when we + * call the gadget driver setup() function that it will always + * queue and require the following flag? Need to look into + * this. + */ + + if (ret == 256 + 999) { + pcd->request_config = 1; + } +} + +#ifdef DWC_UTE_CFI +/** + * This functions delegates the CFI setup commands to the gadget driver. + * This function will return a negative value to indicate a failure. + */ +static inline int cfi_gadget_setup(dwc_otg_pcd_t * pcd, + struct cfi_usb_ctrlrequest *ctrl_req) +{ + int ret = 0; + + if (pcd->fops && pcd->fops->cfi_setup) { + DWC_SPINUNLOCK(pcd->lock); + ret = pcd->fops->cfi_setup(pcd, ctrl_req); + DWC_SPINLOCK(pcd->lock); + if (ret < 0) { + ep0_do_stall(pcd, ret); + return ret; + } + } + + return ret; +} +#endif + +/** + * This function starts the Zero-Length Packet for the IN status phase + * of a 2 stage control transfer. + */ +static inline void do_setup_in_status_phase(dwc_otg_pcd_t * pcd) +{ + dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; + if (pcd->ep0state == EP0_STALL) { + return; + } + + pcd->ep0state = EP0_IN_STATUS_PHASE; + + /* Prepare for more SETUP Packets */ + DWC_DEBUGPL(DBG_PCD, "EP0 IN ZLP\n"); + if ((GET_CORE_IF(pcd)->snpsid >= OTG_CORE_REV_3_00a) + && (pcd->core_if->dma_desc_enable) + && (ep0->dwc_ep.xfer_count < ep0->dwc_ep.total_len)) { + DWC_DEBUGPL(DBG_PCDV, + "Data terminated wait next packet in out_desc_addr\n"); + pcd->backup_buf = phys_to_virt(ep0->dwc_ep.dma_addr); + pcd->data_terminated = 1; + } + ep0->dwc_ep.xfer_len = 0; + ep0->dwc_ep.xfer_count = 0; + ep0->dwc_ep.is_in = 1; + ep0->dwc_ep.dma_addr = pcd->setup_pkt_dma_handle; + dwc_otg_ep0_start_transfer(GET_CORE_IF(pcd), &ep0->dwc_ep); + + /* Prepare for more SETUP Packets */ + //ep0_out_start(GET_CORE_IF(pcd), pcd); +} + +/** + * This function starts the Zero-Length Packet for the OUT status phase + * of a 2 stage control transfer. + */ +static inline void do_setup_out_status_phase(dwc_otg_pcd_t * pcd) +{ + dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; + if (pcd->ep0state == EP0_STALL) { + DWC_DEBUGPL(DBG_PCD, "EP0 STALLED\n"); + return; + } + pcd->ep0state = EP0_OUT_STATUS_PHASE; + + DWC_DEBUGPL(DBG_PCD, "EP0 OUT ZLP\n"); + ep0->dwc_ep.xfer_len = 0; + ep0->dwc_ep.xfer_count = 0; + ep0->dwc_ep.is_in = 0; + ep0->dwc_ep.dma_addr = pcd->setup_pkt_dma_handle; + dwc_otg_ep0_start_transfer(GET_CORE_IF(pcd), &ep0->dwc_ep); + + /* Prepare for more SETUP Packets */ + if (GET_CORE_IF(pcd)->dma_enable == 0) { + ep0_out_start(GET_CORE_IF(pcd), pcd); + } +} + +/** + * Clear the EP halt (STALL) and if pending requests start the + * transfer. + */ +static inline void pcd_clear_halt(dwc_otg_pcd_t * pcd, dwc_otg_pcd_ep_t * ep) +{ + if (ep->dwc_ep.stall_clear_flag == 0) + dwc_otg_ep_clear_stall(GET_CORE_IF(pcd), &ep->dwc_ep); + + /* Reactive the EP */ + dwc_otg_ep_activate(GET_CORE_IF(pcd), &ep->dwc_ep); + if (ep->stopped) { + ep->stopped = 0; + /* If there is a request in the EP queue start it */ + + /** @todo FIXME: this causes an EP mismatch in DMA mode. + * epmismatch not yet implemented. */ + + /* + * Above fixme is solved by implmenting a tasklet to call the + * start_next_request(), outside of interrupt context at some + * time after the current time, after a clear-halt setup packet. + * Still need to implement ep mismatch in the future if a gadget + * ever uses more than one endpoint at once + */ + ep->queue_sof = 1; + DWC_TASK_SCHEDULE(pcd->start_xfer_tasklet); + } + /* Start Control Status Phase */ + do_setup_in_status_phase(pcd); +} + +/** + * This function is called when the SET_FEATURE TEST_MODE Setup packet + * is sent from the host. The Device Control register is written with + * the Test Mode bits set to the specified Test Mode. This is done as + * a tasklet so that the "Status" phase of the control transfer + * completes before transmitting the TEST packets. + * + * @todo This has not been tested since the tasklet struct was put + * into the PCD struct! + * + */ +void do_test_mode(void *data) +{ + dctl_data_t dctl; + dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *) data; + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + int test_mode = pcd->test_mode; + +// DWC_WARN("%s() has not been tested since being rewritten!\n", __func__); + + dctl.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dctl); + switch (test_mode) { + case 1: // TEST_J + dctl.b.tstctl = 1; + break; + + case 2: // TEST_K + dctl.b.tstctl = 2; + break; + + case 3: // TEST_SE0_NAK + dctl.b.tstctl = 3; + break; + + case 4: // TEST_PACKET + dctl.b.tstctl = 4; + break; + + case 5: // TEST_FORCE_ENABLE + dctl.b.tstctl = 5; + break; + } + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32); +} + +/** + * This function process the GET_STATUS Setup Commands. + */ +static inline void do_get_status(dwc_otg_pcd_t * pcd) +{ + usb_device_request_t ctrl = pcd->setup_pkt->req; + dwc_otg_pcd_ep_t *ep; + dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; + uint16_t *status = pcd->status_buf; + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCD, + "GET_STATUS %02x.%02x v%04x i%04x l%04x\n", + ctrl.bmRequestType, ctrl.bRequest, + UGETW(ctrl.wValue), UGETW(ctrl.wIndex), + UGETW(ctrl.wLength)); +#endif + + switch (UT_GET_RECIPIENT(ctrl.bmRequestType)) { + case UT_DEVICE: + if(UGETW(ctrl.wIndex) == 0xF000) { /* OTG Status selector */ + DWC_PRINTF("wIndex - %d\n", UGETW(ctrl.wIndex)); + DWC_PRINTF("OTG VERSION - %d\n", core_if->otg_ver); + DWC_PRINTF("OTG CAP - %d, %d\n", + core_if->core_params->otg_cap, + DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE); + if (core_if->otg_ver == 1 + && core_if->core_params->otg_cap == + DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE) { + uint8_t *otgsts = (uint8_t*)pcd->status_buf; + *otgsts = (core_if->otg_sts & 0x1); + pcd->ep0_pending = 1; + ep0->dwc_ep.start_xfer_buff = + (uint8_t *) otgsts; + ep0->dwc_ep.xfer_buff = (uint8_t *) otgsts; + ep0->dwc_ep.dma_addr = + pcd->status_buf_dma_handle; + ep0->dwc_ep.xfer_len = 1; + ep0->dwc_ep.xfer_count = 0; + ep0->dwc_ep.total_len = ep0->dwc_ep.xfer_len; + dwc_otg_ep0_start_transfer(GET_CORE_IF(pcd), + &ep0->dwc_ep); + return; + } else { + ep0_do_stall(pcd, -DWC_E_NOT_SUPPORTED); + return; + } + break; + } else { + *status = 0x1; /* Self powered */ + *status |= pcd->remote_wakeup_enable << 1; + break; + } + case UT_INTERFACE: + *status = 0; + break; + + case UT_ENDPOINT: + ep = get_ep_by_addr(pcd, UGETW(ctrl.wIndex)); + if (ep == 0 || UGETW(ctrl.wLength) > 2) { + ep0_do_stall(pcd, -DWC_E_NOT_SUPPORTED); + return; + } + /** @todo check for EP stall */ + *status = ep->stopped; + break; + } + pcd->ep0_pending = 1; + ep0->dwc_ep.start_xfer_buff = (uint8_t *) status; + ep0->dwc_ep.xfer_buff = (uint8_t *) status; + ep0->dwc_ep.dma_addr = pcd->status_buf_dma_handle; + ep0->dwc_ep.xfer_len = 2; + ep0->dwc_ep.xfer_count = 0; + ep0->dwc_ep.total_len = ep0->dwc_ep.xfer_len; + dwc_otg_ep0_start_transfer(GET_CORE_IF(pcd), &ep0->dwc_ep); +} + +/** + * This function process the SET_FEATURE Setup Commands. + */ +static inline void do_set_feature(dwc_otg_pcd_t * pcd) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; + usb_device_request_t ctrl = pcd->setup_pkt->req; + dwc_otg_pcd_ep_t *ep = 0; + int32_t otg_cap_param = core_if->core_params->otg_cap; + gotgctl_data_t gotgctl = {.d32 = 0 }; + + DWC_DEBUGPL(DBG_PCD, "SET_FEATURE:%02x.%02x v%04x i%04x l%04x\n", + ctrl.bmRequestType, ctrl.bRequest, + UGETW(ctrl.wValue), UGETW(ctrl.wIndex), + UGETW(ctrl.wLength)); + DWC_DEBUGPL(DBG_PCD, "otg_cap=%d\n", otg_cap_param); + + switch (UT_GET_RECIPIENT(ctrl.bmRequestType)) { + case UT_DEVICE: + switch (UGETW(ctrl.wValue)) { + case UF_DEVICE_REMOTE_WAKEUP: + pcd->remote_wakeup_enable = 1; + break; + + case UF_TEST_MODE: + /* Setup the Test Mode tasklet to do the Test + * Packet generation after the SETUP Status + * phase has completed. */ + + /** @todo This has not been tested since the + * tasklet struct was put into the PCD + * struct! */ + pcd->test_mode = UGETW(ctrl.wIndex) >> 8; + DWC_TASK_SCHEDULE(pcd->test_mode_tasklet); + break; + + case UF_DEVICE_B_HNP_ENABLE: + DWC_DEBUGPL(DBG_PCDV, + "SET_FEATURE: USB_DEVICE_B_HNP_ENABLE\n"); + + /* dev may initiate HNP */ + if (otg_cap_param == DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE) { + pcd->b_hnp_enable = 1; + dwc_otg_pcd_update_otg(pcd, 0); + DWC_DEBUGPL(DBG_PCD, "Request B HNP\n"); + /**@todo Is the gotgctl.devhnpen cleared + * by a USB Reset? */ + gotgctl.b.devhnpen = 1; + gotgctl.b.hnpreq = 1; + DWC_WRITE_REG32(&global_regs->gotgctl, + gotgctl.d32); + } else { + ep0_do_stall(pcd, -DWC_E_NOT_SUPPORTED); + return; + } + break; + + case UF_DEVICE_A_HNP_SUPPORT: + /* RH port supports HNP */ + DWC_DEBUGPL(DBG_PCDV, + "SET_FEATURE: USB_DEVICE_A_HNP_SUPPORT\n"); + if (otg_cap_param == DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE) { + pcd->a_hnp_support = 1; + dwc_otg_pcd_update_otg(pcd, 0); + } else { + ep0_do_stall(pcd, -DWC_E_NOT_SUPPORTED); + return; + } + break; + + case UF_DEVICE_A_ALT_HNP_SUPPORT: + /* other RH port does */ + DWC_DEBUGPL(DBG_PCDV, + "SET_FEATURE: USB_DEVICE_A_ALT_HNP_SUPPORT\n"); + if (otg_cap_param == DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE) { + pcd->a_alt_hnp_support = 1; + dwc_otg_pcd_update_otg(pcd, 0); + } else { + ep0_do_stall(pcd, -DWC_E_NOT_SUPPORTED); + return; + } + break; + + default: + ep0_do_stall(pcd, -DWC_E_NOT_SUPPORTED); + return; + + } + do_setup_in_status_phase(pcd); + break; + + case UT_INTERFACE: + do_gadget_setup(pcd, &ctrl); + break; + + case UT_ENDPOINT: + if (UGETW(ctrl.wValue) == UF_ENDPOINT_HALT) { + ep = get_ep_by_addr(pcd, UGETW(ctrl.wIndex)); + if (ep == 0) { + ep0_do_stall(pcd, -DWC_E_NOT_SUPPORTED); + return; + } + ep->stopped = 1; + dwc_otg_ep_set_stall(core_if, &ep->dwc_ep); + } + do_setup_in_status_phase(pcd); + break; + } +} + +/** + * This function process the CLEAR_FEATURE Setup Commands. + */ +static inline void do_clear_feature(dwc_otg_pcd_t * pcd) +{ + usb_device_request_t ctrl = pcd->setup_pkt->req; + dwc_otg_pcd_ep_t *ep = 0; + + DWC_DEBUGPL(DBG_PCD, + "CLEAR_FEATURE:%02x.%02x v%04x i%04x l%04x\n", + ctrl.bmRequestType, ctrl.bRequest, + UGETW(ctrl.wValue), UGETW(ctrl.wIndex), + UGETW(ctrl.wLength)); + + switch (UT_GET_RECIPIENT(ctrl.bmRequestType)) { + case UT_DEVICE: + switch (UGETW(ctrl.wValue)) { + case UF_DEVICE_REMOTE_WAKEUP: + pcd->remote_wakeup_enable = 0; + break; + + case UF_TEST_MODE: + /** @todo Add CLEAR_FEATURE for TEST modes. */ + break; + + default: + ep0_do_stall(pcd, -DWC_E_NOT_SUPPORTED); + return; + } + do_setup_in_status_phase(pcd); + break; + + case UT_ENDPOINT: + ep = get_ep_by_addr(pcd, UGETW(ctrl.wIndex)); + if (ep == 0) { + ep0_do_stall(pcd, -DWC_E_NOT_SUPPORTED); + return; + } + + pcd_clear_halt(pcd, ep); + + break; + } +} + +/** + * This function process the SET_ADDRESS Setup Commands. + */ +static inline void do_set_address(dwc_otg_pcd_t * pcd) +{ + dwc_otg_dev_if_t *dev_if = GET_CORE_IF(pcd)->dev_if; + usb_device_request_t ctrl = pcd->setup_pkt->req; + + if (ctrl.bmRequestType == UT_DEVICE) { + dcfg_data_t dcfg = {.d32 = 0 }; + +#ifdef DEBUG_EP0 +// DWC_DEBUGPL(DBG_PCDV, "SET_ADDRESS:%d\n", ctrl.wValue); +#endif + dcfg.b.devaddr = UGETW(ctrl.wValue); + DWC_MODIFY_REG32(&dev_if->dev_global_regs->dcfg, 0, dcfg.d32); + do_setup_in_status_phase(pcd); + } +} + +/** + * This function processes SETUP commands. In Linux, the USB Command + * processing is done in two places - the first being the PCD and the + * second in the Gadget Driver (for example, the File-Backed Storage + * Gadget Driver). + * + *
Parameter NameMeaning
otg_capSpecifies the OTG capabilities. The driver will automatically detect the + value for this parameter if none is specified. + - 0: HNP and SRP capable (default, if available) + - 1: SRP Only capable + - 2: No HNP/SRP capable +
dma_enableSpecifies whether to use slave or DMA mode for accessing the data FIFOs. + The driver will automatically detect the value for this parameter if none is + specified. + - 0: Slave + - 1: DMA (default, if available) +
dma_burst_sizeThe DMA Burst size (applicable only for External DMA Mode). + - Values: 1, 4, 8 16, 32, 64, 128, 256 (default 32) +
speedSpecifies the maximum speed of operation in host and device mode. The + actual speed depends on the speed of the attached device and the value of + phy_type. + - 0: High Speed (default) + - 1: Full Speed +
host_support_fs_ls_low_powerSpecifies whether low power mode is supported when attached to a Full + Speed or Low Speed device in host mode. + - 0: Don't support low power mode (default) + - 1: Support low power mode +
host_ls_low_power_phy_clkSpecifies the PHY clock rate in low power mode when connected to a Low + Speed device in host mode. This parameter is applicable only if + HOST_SUPPORT_FS_LS_LOW_POWER is enabled. + - 0: 48 MHz (default) + - 1: 6 MHz +
enable_dynamic_fifo Specifies whether FIFOs may be resized by the driver software. + - 0: Use cC FIFO size parameters + - 1: Allow dynamic FIFO sizing (default) +
data_fifo_sizeTotal number of 4-byte words in the data FIFO memory. This memory + includes the Rx FIFO, non-periodic Tx FIFO, and periodic Tx FIFOs. + - Values: 32 to 32768 (default 8192) + + Note: The total FIFO memory depth in the FPGA configuration is 8192. +
dev_rx_fifo_sizeNumber of 4-byte words in the Rx FIFO in device mode when dynamic + FIFO sizing is enabled. + - Values: 16 to 32768 (default 1064) +
dev_nperio_tx_fifo_sizeNumber of 4-byte words in the non-periodic Tx FIFO in device mode when + dynamic FIFO sizing is enabled. + - Values: 16 to 32768 (default 1024) +
dev_perio_tx_fifo_size_n (n = 1 to 15)Number of 4-byte words in each of the periodic Tx FIFOs in device mode + when dynamic FIFO sizing is enabled. + - Values: 4 to 768 (default 256) +
host_rx_fifo_sizeNumber of 4-byte words in the Rx FIFO in host mode when dynamic FIFO + sizing is enabled. + - Values: 16 to 32768 (default 1024) +
host_nperio_tx_fifo_sizeNumber of 4-byte words in the non-periodic Tx FIFO in host mode when + dynamic FIFO sizing is enabled in the core. + - Values: 16 to 32768 (default 1024) +
host_perio_tx_fifo_sizeNumber of 4-byte words in the host periodic Tx FIFO when dynamic FIFO + sizing is enabled. + - Values: 16 to 32768 (default 1024) +
max_transfer_sizeThe maximum transfer size supported in bytes. + - Values: 2047 to 65,535 (default 65,535) +
max_packet_countThe maximum number of packets in a transfer. + - Values: 15 to 511 (default 511) +
host_channelsThe number of host channel registers to use. + - Values: 1 to 16 (default 12) + + Note: The FPGA configuration supports a maximum of 12 host channels. +
dev_endpointsThe number of endpoints in addition to EP0 available for device mode + operations. + - Values: 1 to 15 (default 6 IN and OUT) + + Note: The FPGA configuration supports a maximum of 6 IN and OUT endpoints in + addition to EP0. +
phy_typeSpecifies the type of PHY interface to use. By default, the driver will + automatically detect the phy_type. + - 0: Full Speed + - 1: UTMI+ (default, if available) + - 2: ULPI +
phy_utmi_widthSpecifies the UTMI+ Data Width. This parameter is applicable for a + phy_type of UTMI+. Also, this parameter is applicable only if the + OTG_HSPHY_WIDTH cC parameter was set to "8 and 16 bits", meaning that the + core has been configured to work at either data path width. + - Values: 8 or 16 bits (default 16) +
phy_ulpi_ddrSpecifies whether the ULPI operates at double or single data rate. This + parameter is only applicable if phy_type is ULPI. + - 0: single data rate ULPI interface with 8 bit wide data bus (default) + - 1: double data rate ULPI interface with 4 bit wide data bus +
i2c_enableSpecifies whether to use the I2C interface for full speed PHY. This + parameter is only applicable if PHY_TYPE is FS. + - 0: Disabled (default) + - 1: Enabled +
ulpi_fs_lsSpecifies whether to use ULPI FS/LS mode only. + - 0: Disabled (default) + - 1: Enabled +
ts_dlineSpecifies whether term select D-Line pulsing for all PHYs is enabled. + - 0: Disabled (default) + - 1: Enabled +
en_multiple_tx_fifoSpecifies whether dedicatedto tx fifos are enabled for non periodic IN EPs. + The driver will automatically detect the value for this parameter if none is + specified. + - 0: Disabled + - 1: Enabled (default, if available) +
dev_tx_fifo_size_n (n = 1 to 15)Number of 4-byte words in each of the Tx FIFOs in device mode + when dynamic FIFO sizing is enabled. + - Values: 4 to 768 (default 256) +
tx_thr_lengthTransmit Threshold length in 32 bit double words + - Values: 8 to 128 (default 64) +
rx_thr_lengthReceive Threshold length in 32 bit double words + - Values: 8 to 128 (default 64) +
thr_ctlSpecifies whether to enable Thresholding for Device mode. Bits 0, 1, 2 of + this parmater specifies if thresholding is enabled for non-Iso Tx, Iso Tx and + Rx transfers accordingly. + The driver will automatically detect the value for this parameter if none is + specified. + - Values: 0 to 7 (default 0) + Bit values indicate: + - 0: Thresholding disabled + - 1: Thresholding enabled +
dma_desc_enableSpecifies whether to enable Descriptor DMA mode. + The driver will automatically detect the value for this parameter if none is + specified. + - 0: Descriptor DMA disabled + - 1: Descriptor DMA (default, if available) +
mpi_enableSpecifies whether to enable MPI enhancement mode. + The driver will automatically detect the value for this parameter if none is + specified. + - 0: MPI disabled (default) + - 1: MPI enable +
pti_enableSpecifies whether to enable PTI enhancement support. + The driver will automatically detect the value for this parameter if none is + specified. + - 0: PTI disabled (default) + - 1: PTI enable +
lpm_enableSpecifies whether to enable LPM support. + The driver will automatically detect the value for this parameter if none is + specified. + - 0: LPM disabled + - 1: LPM enable (default, if available) +
ic_usb_capSpecifies whether to enable IC_USB capability. + The driver will automatically detect the value for this parameter if none is + specified. + - 0: IC_USB disabled (default, if available) + - 1: IC_USB enable +
ahb_thr_ratioSpecifies AHB Threshold ratio. + - Values: 0 to 3 (default 0) +
power_downSpecifies Power Down(Hibernation) Mode. + The driver will automatically detect the value for this parameter if none is + specified. + - 0: Power Down disabled (default) + - 2: Power Down enabled +
reload_ctlSpecifies whether dynamic reloading of the HFIR register is allowed during + run time. The driver will automatically detect the value for this parameter if + none is specified. In case the HFIR value is reloaded when HFIR.RldCtrl == 1'b0 + the core might misbehave. + - 0: Reload Control disabled (default) + - 1: Reload Control enabled +
dev_out_nakSpecifies whether Device OUT NAK enhancement enabled or no. + The driver will automatically detect the value for this parameter if + none is specified. This parameter is valid only when OTG_EN_DESC_DMA == 1b1. + - 0: The core does not set NAK after Bulk OUT transfer complete (default) + - 1: The core sets NAK after Bulk OUT transfer complete +
cont_on_bnaSpecifies whether Enable Continue on BNA enabled or no. + After receiving BNA interrupt the core disables the endpoint,when the + endpoint is re-enabled by the application the + - 0: Core starts processing from the DOEPDMA descriptor (default) + - 1: Core starts processing from the descriptor which received the BNA. + This parameter is valid only when OTG_EN_DESC_DMA == 1b1. +
ahb_singleThis bit when programmed supports SINGLE transfers for remainder data + in a transfer for DMA mode of operation. + - 0: The remainder data will be sent using INCR burst size (default) + - 1: The remainder data will be sent using SINGLE burst size. +
adp_enableSpecifies whether ADP feature is enabled. + The driver will automatically detect the value for this parameter if none is + specified. + - 0: ADP feature disabled (default) + - 1: ADP feature enabled +
otg_verSpecifies whether OTG is performing as USB OTG Revision 2.0 or Revision 1.3 + USB OTG device. + - 0: OTG 2.0 support disabled (default) + - 1: OTG 2.0 support enabled +
+ * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + *
Command Driver Description
GET_STATUS PCD Command is processed as + * defined in chapter 9 of the USB 2.0 Specification chapter 9 + *
CLEAR_FEATURE PCD The Device and Endpoint + * requests are the ENDPOINT_HALT feature is procesed, all others the + * interface requests are ignored.
SET_FEATURE PCD The Device and Endpoint + * requests are processed by the PCD. Interface requests are passed + * to the Gadget Driver.
SET_ADDRESS PCD Program the DCFG reg, + * with device address received
GET_DESCRIPTOR Gadget Driver Return the + * requested descriptor
SET_DESCRIPTOR Gadget Driver Optional - + * not implemented by any of the existing Gadget Drivers.
SET_CONFIGURATION Gadget Driver Disable + * all EPs and enable EPs for new configuration.
GET_CONFIGURATION Gadget Driver Return + * the current configuration
SET_INTERFACE Gadget Driver Disable all + * EPs and enable EPs for new configuration.
GET_INTERFACE Gadget Driver Return the + * current interface.
SYNC_FRAME PCD Display debug + * message.
+ * + * When the SETUP Phase Done interrupt occurs, the PCD SETUP commands are + * processed by pcd_setup. Calling the Function Driver's setup function from + * pcd_setup processes the gadget SETUP commands. + */ +static inline void pcd_setup(dwc_otg_pcd_t * pcd) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + usb_device_request_t ctrl = pcd->setup_pkt->req; + dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; + + deptsiz0_data_t doeptsize0 = {.d32 = 0 }; + +#ifdef DWC_UTE_CFI + int retval = 0; + struct cfi_usb_ctrlrequest cfi_req; +#endif + + doeptsize0.d32 = DWC_READ_REG32(&dev_if->out_ep_regs[0]->doeptsiz); + + /** In BDMA more then 1 setup packet is not supported till 3.00a */ + if (core_if->dma_enable && core_if->dma_desc_enable == 0 + && (doeptsize0.b.supcnt < 2) + && (core_if->snpsid < OTG_CORE_REV_2_94a)) { + DWC_ERROR + ("\n\n----------- CANNOT handle > 1 setup packet in DMA mode\n\n"); + } + if ((core_if->snpsid >= OTG_CORE_REV_3_00a) + && (core_if->dma_enable == 1) && (core_if->dma_desc_enable == 0)) { + ctrl = + (pcd->setup_pkt + + (3 - doeptsize0.b.supcnt - 1 + + ep0->dwc_ep.stp_rollover))->req; + } +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCD, "SETUP %02x.%02x v%04x i%04x l%04x\n", + ctrl.bmRequestType, ctrl.bRequest, + UGETW(ctrl.wValue), UGETW(ctrl.wIndex), + UGETW(ctrl.wLength)); +#endif + + /* Clean up the request queue */ + dwc_otg_request_nuke(ep0); + ep0->stopped = 0; + + if (ctrl.bmRequestType & UE_DIR_IN) { + ep0->dwc_ep.is_in = 1; + pcd->ep0state = EP0_IN_DATA_PHASE; + } else { + ep0->dwc_ep.is_in = 0; + pcd->ep0state = EP0_OUT_DATA_PHASE; + } + + if (UGETW(ctrl.wLength) == 0) { + ep0->dwc_ep.is_in = 1; + pcd->ep0state = EP0_IN_STATUS_PHASE; + } + + if (UT_GET_TYPE(ctrl.bmRequestType) != UT_STANDARD) { + +#ifdef DWC_UTE_CFI + DWC_MEMCPY(&cfi_req, &ctrl, sizeof(usb_device_request_t)); + + //printk(KERN_ALERT "CFI: req_type=0x%02x; req=0x%02x\n", + ctrl.bRequestType, ctrl.bRequest); + if (UT_GET_TYPE(cfi_req.bRequestType) == UT_VENDOR) { + if (cfi_req.bRequest > 0xB0 && cfi_req.bRequest < 0xBF) { + retval = cfi_setup(pcd, &cfi_req); + if (retval < 0) { + ep0_do_stall(pcd, retval); + pcd->ep0_pending = 0; + return; + } + + /* if need gadget setup then call it and check the retval */ + if (pcd->cfi->need_gadget_att) { + retval = + cfi_gadget_setup(pcd, + &pcd-> + cfi->ctrl_req); + if (retval < 0) { + pcd->ep0_pending = 0; + return; + } + } + + if (pcd->cfi->need_status_in_complete) { + do_setup_in_status_phase(pcd); + } + return; + } + } +#endif + + /* handle non-standard (class/vendor) requests in the gadget driver */ + do_gadget_setup(pcd, &ctrl); + return; + } + + /** @todo NGS: Handle bad setup packet? */ + +/////////////////////////////////////////// +//// --- Standard Request handling --- //// + + switch (ctrl.bRequest) { + case UR_GET_STATUS: + do_get_status(pcd); + break; + + case UR_CLEAR_FEATURE: + do_clear_feature(pcd); + break; + + case UR_SET_FEATURE: + do_set_feature(pcd); + break; + + case UR_SET_ADDRESS: + do_set_address(pcd); + break; + + case UR_SET_INTERFACE: + case UR_SET_CONFIG: +// _pcd->request_config = 1; /* Configuration changed */ + do_gadget_setup(pcd, &ctrl); + break; + + case UR_SYNCH_FRAME: + do_gadget_setup(pcd, &ctrl); + break; + + default: + /* Call the Gadget Driver's setup functions */ + do_gadget_setup(pcd, &ctrl); + break; + } +} + +/** + * This function completes the ep0 control transfer. + */ +static int32_t ep0_complete_request(dwc_otg_pcd_ep_t * ep) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(ep->pcd); + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + dwc_otg_dev_in_ep_regs_t *in_ep_regs = + dev_if->in_ep_regs[ep->dwc_ep.num]; +#ifdef DEBUG_EP0 + dwc_otg_dev_out_ep_regs_t *out_ep_regs = + dev_if->out_ep_regs[ep->dwc_ep.num]; +#endif + deptsiz0_data_t deptsiz; + dev_dma_desc_sts_t desc_sts; + dwc_otg_pcd_request_t *req; + int is_last = 0; + dwc_otg_pcd_t *pcd = ep->pcd; + +#ifdef DWC_UTE_CFI + struct cfi_usb_ctrlrequest *ctrlreq; + int retval = -DWC_E_NOT_SUPPORTED; +#endif + + desc_sts.b.bytes = 0; + + if (pcd->ep0_pending && DWC_CIRCLEQ_EMPTY(&ep->queue)) { + if (ep->dwc_ep.is_in) { +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCDV, "Do setup OUT status phase\n"); +#endif + do_setup_out_status_phase(pcd); + } else { +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCDV, "Do setup IN status phase\n"); +#endif + +#ifdef DWC_UTE_CFI + ctrlreq = &pcd->cfi->ctrl_req; + + if (UT_GET_TYPE(ctrlreq->bRequestType) == UT_VENDOR) { + if (ctrlreq->bRequest > 0xB0 + && ctrlreq->bRequest < 0xBF) { + + /* Return if the PCD failed to handle the request */ + if ((retval = + pcd->cfi->ops. + ctrl_write_complete(pcd->cfi, + pcd)) < 0) { + CFI_INFO + ("ERROR setting a new value in the PCD(%d)\n", + retval); + ep0_do_stall(pcd, retval); + pcd->ep0_pending = 0; + return 0; + } + + /* If the gadget needs to be notified on the request */ + if (pcd->cfi->need_gadget_att == 1) { + //retval = do_gadget_setup(pcd, &pcd->cfi->ctrl_req); + retval = + cfi_gadget_setup(pcd, + &pcd->cfi-> + ctrl_req); + + /* Return from the function if the gadget failed to process + * the request properly - this should never happen !!! + */ + if (retval < 0) { + CFI_INFO + ("ERROR setting a new value in the gadget(%d)\n", + retval); + pcd->ep0_pending = 0; + return 0; + } + } + + CFI_INFO("%s: RETVAL=%d\n", __func__, + retval); + /* If we hit here then the PCD and the gadget has properly + * handled the request - so send the ZLP IN to the host. + */ + /* @todo: MAS - decide whether we need to start the setup + * stage based on the need_setup value of the cfi object + */ + do_setup_in_status_phase(pcd); + pcd->ep0_pending = 0; + return 1; + } + } +#endif + + do_setup_in_status_phase(pcd); + } + pcd->ep0_pending = 0; + return 1; + } + + if (DWC_CIRCLEQ_EMPTY(&ep->queue)) { + return 0; + } + req = DWC_CIRCLEQ_FIRST(&ep->queue); + + if (pcd->ep0state == EP0_OUT_STATUS_PHASE + || pcd->ep0state == EP0_IN_STATUS_PHASE) { + is_last = 1; + } else if (ep->dwc_ep.is_in) { + deptsiz.d32 = DWC_READ_REG32(&in_ep_regs->dieptsiz); + if (core_if->dma_desc_enable != 0) + desc_sts = dev_if->in_desc_addr->status; +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCDV, "%d len=%d xfersize=%d pktcnt=%d\n", + ep->dwc_ep.num, ep->dwc_ep.xfer_len, + deptsiz.b.xfersize, deptsiz.b.pktcnt); +#endif + + if (((core_if->dma_desc_enable == 0) + && (deptsiz.b.xfersize == 0)) + || ((core_if->dma_desc_enable != 0) + && (desc_sts.b.bytes == 0))) { + req->actual = ep->dwc_ep.xfer_count; + /* Is a Zero Len Packet needed? */ + if (req->sent_zlp) { +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCD, "Setup Rx ZLP\n"); +#endif + req->sent_zlp = 0; + } + do_setup_out_status_phase(pcd); + } + } else { + /* ep0-OUT */ +#ifdef DEBUG_EP0 + deptsiz.d32 = DWC_READ_REG32(&out_ep_regs->doeptsiz); + DWC_DEBUGPL(DBG_PCDV, "%d len=%d xsize=%d pktcnt=%d\n", + ep->dwc_ep.num, ep->dwc_ep.xfer_len, + deptsiz.b.xfersize, deptsiz.b.pktcnt); +#endif + req->actual = ep->dwc_ep.xfer_count; + + /* Is a Zero Len Packet needed? */ + if (req->sent_zlp) { +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCDV, "Setup Tx ZLP\n"); +#endif + req->sent_zlp = 0; + } + /* For older cores do setup in status phase in Slave/BDMA modes, + * starting from 3.00 do that only in slave, and for DMA modes + * just re-enable ep 0 OUT here*/ + if (core_if->dma_enable == 0 + || (core_if->dma_desc_enable == 0 + && core_if->snpsid <= OTG_CORE_REV_2_94a)) { + do_setup_in_status_phase(pcd); + } else if (core_if->snpsid >= OTG_CORE_REV_3_00a) { + DWC_DEBUGPL(DBG_PCDV, + "Enable out ep before in status phase\n"); + ep0_out_start(core_if, pcd); + } + } + + /* Complete the request */ + if (is_last) { + dwc_otg_request_done(ep, req, 0); + ep->dwc_ep.start_xfer_buff = 0; + ep->dwc_ep.xfer_buff = 0; + ep->dwc_ep.xfer_len = 0; + return 1; + } + return 0; +} + +#ifdef DWC_UTE_CFI +/** + * This function calculates traverses all the CFI DMA descriptors and + * and accumulates the bytes that are left to be transfered. + * + * @return The total bytes left to transfered, or a negative value as failure + */ +static inline int cfi_calc_desc_residue(dwc_otg_pcd_ep_t * ep) +{ + int32_t ret = 0; + int i; + struct dwc_otg_dma_desc *ddesc = NULL; + struct cfi_ep *cfiep; + + /* See if the pcd_ep has its respective cfi_ep mapped */ + cfiep = get_cfi_ep_by_pcd_ep(ep->pcd->cfi, ep); + if (!cfiep) { + CFI_INFO("%s: Failed to find ep\n", __func__); + return -1; + } + + ddesc = ep->dwc_ep.descs; + + for (i = 0; (i < cfiep->desc_count) && (i < MAX_DMA_DESCS_PER_EP); i++) { + +#if defined(PRINT_CFI_DMA_DESCS) + print_desc(ddesc, ep->ep.name, i); +#endif + ret += ddesc->status.b.bytes; + ddesc++; + } + + if (ret) + CFI_INFO("!!!!!!!!!! WARNING (%s) - residue=%d\n", __func__, + ret); + + return ret; +} +#endif + +/** + * This function completes the request for the EP. If there are + * additional requests for the EP in the queue they will be started. + */ +static void complete_ep(dwc_otg_pcd_ep_t * ep) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(ep->pcd); + struct device *dev = dwc_otg_pcd_to_dev(ep->pcd); + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + dwc_otg_dev_in_ep_regs_t *in_ep_regs = + dev_if->in_ep_regs[ep->dwc_ep.num]; + deptsiz_data_t deptsiz; + dev_dma_desc_sts_t desc_sts; + dwc_otg_pcd_request_t *req = 0; + dwc_otg_dev_dma_desc_t *dma_desc; + uint32_t byte_count = 0; + int is_last = 0; + int i; + + DWC_DEBUGPL(DBG_PCDV, "%s() %d-%s\n", __func__, ep->dwc_ep.num, + (ep->dwc_ep.is_in ? "IN" : "OUT")); + + /* Get any pending requests */ + if (!DWC_CIRCLEQ_EMPTY(&ep->queue)) { + req = DWC_CIRCLEQ_FIRST(&ep->queue); + if (!req) { + DWC_PRINTF("complete_ep 0x%p, req = NULL!\n", ep); + return; + } + } else { + DWC_PRINTF("complete_ep 0x%p, ep->queue empty!\n", ep); + return; + } + + DWC_DEBUGPL(DBG_PCD, "Requests %d\n", ep->pcd->request_pending); + + if (ep->dwc_ep.is_in) { + deptsiz.d32 = DWC_READ_REG32(&in_ep_regs->dieptsiz); + + if (core_if->dma_enable) { + if (core_if->dma_desc_enable == 0) { + if (deptsiz.b.xfersize == 0 + && deptsiz.b.pktcnt == 0) { + byte_count = + ep->dwc_ep.xfer_len - + ep->dwc_ep.xfer_count; + + ep->dwc_ep.xfer_buff += byte_count; + ep->dwc_ep.dma_addr += byte_count; + ep->dwc_ep.xfer_count += byte_count; + + DWC_DEBUGPL(DBG_PCDV, + "%d-%s len=%d xfersize=%d pktcnt=%d\n", + ep->dwc_ep.num, + (ep->dwc_ep. + is_in ? "IN" : "OUT"), + ep->dwc_ep.xfer_len, + deptsiz.b.xfersize, + deptsiz.b.pktcnt); + + if (ep->dwc_ep.xfer_len < + ep->dwc_ep.total_len) { + dwc_otg_ep_start_transfer + (core_if, &ep->dwc_ep); + } else if (ep->dwc_ep.sent_zlp) { + /* + * This fragment of code should initiate 0 + * length transfer in case if it is queued + * a transfer with size divisible to EPs max + * packet size and with usb_request zero field + * is set, which means that after data is transfered, + * it is also should be transfered + * a 0 length packet at the end. For Slave and + * Buffer DMA modes in this case SW has + * to initiate 2 transfers one with transfer size, + * and the second with 0 size. For Descriptor + * DMA mode SW is able to initiate a transfer, + * which will handle all the packets including + * the last 0 length. + */ + ep->dwc_ep.sent_zlp = 0; + dwc_otg_ep_start_zl_transfer + (core_if, &ep->dwc_ep); + } else { + is_last = 1; + } + } else { + if (ep->dwc_ep.type == + DWC_OTG_EP_TYPE_ISOC) { + req->actual = 0; + dwc_otg_request_done(ep, req, 0); + + ep->dwc_ep.start_xfer_buff = 0; + ep->dwc_ep.xfer_buff = 0; + ep->dwc_ep.xfer_len = 0; + + /* If there is a request in the queue start it. */ + start_next_request(ep); + } else + DWC_WARN + ("Incomplete transfer (%d - %s [siz=%d pkt=%d])\n", + ep->dwc_ep.num, + (ep->dwc_ep.is_in ? "IN" : "OUT"), + deptsiz.b.xfersize, + deptsiz.b.pktcnt); + } + } else { + dma_desc = ep->dwc_ep.desc_addr; + byte_count = 0; + ep->dwc_ep.sent_zlp = 0; + +#ifdef DWC_UTE_CFI + CFI_INFO("%s: BUFFER_MODE=%d\n", __func__, + ep->dwc_ep.buff_mode); + if (ep->dwc_ep.buff_mode != BM_STANDARD) { + int residue; + + residue = cfi_calc_desc_residue(ep); + if (residue < 0) + return; + + byte_count = residue; + } else { +#endif + for (i = 0; i < ep->dwc_ep.desc_cnt; + ++i) { + desc_sts = dma_desc->status; + byte_count += desc_sts.b.bytes; + dma_desc++; + } +#ifdef DWC_UTE_CFI + } +#endif + if (byte_count == 0) { + ep->dwc_ep.xfer_count = + ep->dwc_ep.total_len; + is_last = 1; + } else { + DWC_WARN("Incomplete transfer\n"); + } + } + } else { + if (deptsiz.b.xfersize == 0 && deptsiz.b.pktcnt == 0) { + DWC_DEBUGPL(DBG_PCDV, + "%d-%s len=%d xfersize=%d pktcnt=%d\n", + ep->dwc_ep.num, + ep->dwc_ep.is_in ? "IN" : "OUT", + ep->dwc_ep.xfer_len, + deptsiz.b.xfersize, + deptsiz.b.pktcnt); + + /* Check if the whole transfer was completed, + * if no, setup transfer for next portion of data + */ + if (ep->dwc_ep.xfer_len < ep->dwc_ep.total_len) { + dwc_otg_ep_start_transfer(core_if, + &ep->dwc_ep); + } else if (ep->dwc_ep.sent_zlp) { + /* + * This fragment of code should initiate 0 + * length trasfer in case if it is queued + * a trasfer with size divisible to EPs max + * packet size and with usb_request zero field + * is set, which means that after data is transfered, + * it is also should be transfered + * a 0 length packet at the end. For Slave and + * Buffer DMA modes in this case SW has + * to initiate 2 transfers one with transfer size, + * and the second with 0 size. For Desriptor + * DMA mode SW is able to initiate a transfer, + * which will handle all the packets including + * the last 0 legth. + */ + ep->dwc_ep.sent_zlp = 0; + dwc_otg_ep_start_zl_transfer(core_if, + &ep->dwc_ep); + } else { + is_last = 1; + } + } else { + DWC_WARN + ("Incomplete transfer (%d-%s [siz=%d pkt=%d])\n", + ep->dwc_ep.num, + (ep->dwc_ep.is_in ? "IN" : "OUT"), + deptsiz.b.xfersize, deptsiz.b.pktcnt); + } + } + } else { + dwc_otg_dev_out_ep_regs_t *out_ep_regs = + dev_if->out_ep_regs[ep->dwc_ep.num]; + desc_sts.d32 = 0; + if (core_if->dma_enable) { + if (core_if->dma_desc_enable) { + dma_desc = ep->dwc_ep.desc_addr; + byte_count = 0; + ep->dwc_ep.sent_zlp = 0; + +#ifdef DWC_UTE_CFI + CFI_INFO("%s: BUFFER_MODE=%d\n", __func__, + ep->dwc_ep.buff_mode); + if (ep->dwc_ep.buff_mode != BM_STANDARD) { + int residue; + residue = cfi_calc_desc_residue(ep); + if (residue < 0) + return; + byte_count = residue; + } else { +#endif + + for (i = 0; i < ep->dwc_ep.desc_cnt; + ++i) { + desc_sts = dma_desc->status; + byte_count += desc_sts.b.bytes; + dma_desc++; + } + +#ifdef DWC_UTE_CFI + } +#endif + /* Checking for interrupt Out transfers with not + * dword aligned mps sizes + */ + if (ep->dwc_ep.type == DWC_OTG_EP_TYPE_INTR && + (ep->dwc_ep.maxpacket%4)) { + ep->dwc_ep.xfer_count = + ep->dwc_ep.total_len - byte_count; + if ((ep->dwc_ep.xfer_len % + ep->dwc_ep.maxpacket) + && (ep->dwc_ep.xfer_len / + ep->dwc_ep.maxpacket < + MAX_DMA_DESC_CNT)) + ep->dwc_ep.xfer_len -= + (ep->dwc_ep.desc_cnt - + 1) * ep->dwc_ep.maxpacket + + ep->dwc_ep.xfer_len % + ep->dwc_ep.maxpacket; + else + ep->dwc_ep.xfer_len -= + ep->dwc_ep.desc_cnt * + ep->dwc_ep.maxpacket; + if (ep->dwc_ep.xfer_len > 0) { + dwc_otg_ep_start_transfer + (core_if, &ep->dwc_ep); + } else { + is_last = 1; + } + } else { + ep->dwc_ep.xfer_count = + ep->dwc_ep.total_len - byte_count + + ((4 - + (ep->dwc_ep. + total_len & 0x3)) & 0x3); + is_last = 1; + } + } else { + deptsiz.d32 = 0; + deptsiz.d32 = + DWC_READ_REG32(&out_ep_regs->doeptsiz); + + byte_count = (ep->dwc_ep.xfer_len - + ep->dwc_ep.xfer_count - + deptsiz.b.xfersize); + ep->dwc_ep.xfer_buff += byte_count; + ep->dwc_ep.dma_addr += byte_count; + ep->dwc_ep.xfer_count += byte_count; + + /* Check if the whole transfer was completed, + * if no, setup transfer for next portion of data + */ + if (ep->dwc_ep.xfer_len < ep->dwc_ep.total_len) { + dwc_otg_ep_start_transfer(core_if, + &ep->dwc_ep); + } else if (ep->dwc_ep.sent_zlp) { + /* + * This fragment of code should initiate 0 + * length trasfer in case if it is queued + * a trasfer with size divisible to EPs max + * packet size and with usb_request zero field + * is set, which means that after data is transfered, + * it is also should be transfered + * a 0 length packet at the end. For Slave and + * Buffer DMA modes in this case SW has + * to initiate 2 transfers one with transfer size, + * and the second with 0 size. For Desriptor + * DMA mode SW is able to initiate a transfer, + * which will handle all the packets including + * the last 0 legth. + */ + ep->dwc_ep.sent_zlp = 0; + dwc_otg_ep_start_zl_transfer(core_if, + &ep->dwc_ep); + } else { + is_last = 1; + } + } + } else { + /* Check if the whole transfer was completed, + * if no, setup transfer for next portion of data + */ + if (ep->dwc_ep.xfer_len < ep->dwc_ep.total_len) { + dwc_otg_ep_start_transfer(core_if, &ep->dwc_ep); + } else if (ep->dwc_ep.sent_zlp) { + /* + * This fragment of code should initiate 0 + * length transfer in case if it is queued + * a transfer with size divisible to EPs max + * packet size and with usb_request zero field + * is set, which means that after data is transfered, + * it is also should be transfered + * a 0 length packet at the end. For Slave and + * Buffer DMA modes in this case SW has + * to initiate 2 transfers one with transfer size, + * and the second with 0 size. For Descriptor + * DMA mode SW is able to initiate a transfer, + * which will handle all the packets including + * the last 0 length. + */ + ep->dwc_ep.sent_zlp = 0; + dwc_otg_ep_start_zl_transfer(core_if, + &ep->dwc_ep); + } else { + is_last = 1; + } + } + + DWC_DEBUGPL(DBG_PCDV, + "addr %p, %d-%s len=%d cnt=%d xsize=%d pktcnt=%d\n", + &out_ep_regs->doeptsiz, ep->dwc_ep.num, + ep->dwc_ep.is_in ? "IN" : "OUT", + ep->dwc_ep.xfer_len, ep->dwc_ep.xfer_count, + deptsiz.b.xfersize, deptsiz.b.pktcnt); + } + + /* Complete the request */ + if (is_last) { +#ifdef DWC_UTE_CFI + if (ep->dwc_ep.buff_mode != BM_STANDARD) { + req->actual = ep->dwc_ep.cfi_req_len - byte_count; + } else { +#endif + req->actual = ep->dwc_ep.xfer_count; +#ifdef DWC_UTE_CFI + } +#endif + if (req->dw_align_buf) { + if (!ep->dwc_ep.is_in) { + dwc_memcpy(req->buf, req->dw_align_buf, req->length); + } + DWC_DMA_FREE(dev, req->length, req->dw_align_buf, + req->dw_align_buf_dma); + } + + dwc_otg_request_done(ep, req, 0); + + ep->dwc_ep.start_xfer_buff = 0; + ep->dwc_ep.xfer_buff = 0; + ep->dwc_ep.xfer_len = 0; + + /* If there is a request in the queue start it. */ + start_next_request(ep); + } +} + +#ifdef DWC_EN_ISOC + +/** + * This function BNA interrupt for Isochronous EPs + * + */ +static void dwc_otg_pcd_handle_iso_bna(dwc_otg_pcd_ep_t * ep) +{ + dwc_ep_t *dwc_ep = &ep->dwc_ep; + volatile uint32_t *addr; + depctl_data_t depctl = {.d32 = 0 }; + dwc_otg_pcd_t *pcd = ep->pcd; + dwc_otg_dev_dma_desc_t *dma_desc; + int i; + + dma_desc = + dwc_ep->iso_desc_addr + dwc_ep->desc_cnt * (dwc_ep->proc_buf_num); + + if (dwc_ep->is_in) { + dev_dma_desc_sts_t sts = {.d32 = 0 }; + for (i = 0; i < dwc_ep->desc_cnt; ++i, ++dma_desc) { + sts.d32 = dma_desc->status.d32; + sts.b_iso_in.bs = BS_HOST_READY; + dma_desc->status.d32 = sts.d32; + } + } else { + dev_dma_desc_sts_t sts = {.d32 = 0 }; + for (i = 0; i < dwc_ep->desc_cnt; ++i, ++dma_desc) { + sts.d32 = dma_desc->status.d32; + sts.b_iso_out.bs = BS_HOST_READY; + dma_desc->status.d32 = sts.d32; + } + } + + if (dwc_ep->is_in == 0) { + addr = + &GET_CORE_IF(pcd)->dev_if->out_ep_regs[dwc_ep-> + num]->doepctl; + } else { + addr = + &GET_CORE_IF(pcd)->dev_if->in_ep_regs[dwc_ep->num]->diepctl; + } + depctl.b.epena = 1; + DWC_MODIFY_REG32(addr, depctl.d32, depctl.d32); +} + +/** + * This function sets latest iso packet information(non-PTI mode) + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to start the transfer on. + * + */ +void set_current_pkt_info(dwc_otg_core_if_t * core_if, dwc_ep_t * ep) +{ + deptsiz_data_t deptsiz = {.d32 = 0 }; + dma_addr_t dma_addr; + uint32_t offset; + + if (ep->proc_buf_num) + dma_addr = ep->dma_addr1; + else + dma_addr = ep->dma_addr0; + + if (ep->is_in) { + deptsiz.d32 = + DWC_READ_REG32(&core_if->dev_if-> + in_ep_regs[ep->num]->dieptsiz); + offset = ep->data_per_frame; + } else { + deptsiz.d32 = + DWC_READ_REG32(&core_if->dev_if-> + out_ep_regs[ep->num]->doeptsiz); + offset = + ep->data_per_frame + + (0x4 & (0x4 - (ep->data_per_frame & 0x3))); + } + + if (!deptsiz.b.xfersize) { + ep->pkt_info[ep->cur_pkt].length = ep->data_per_frame; + ep->pkt_info[ep->cur_pkt].offset = + ep->cur_pkt_dma_addr - dma_addr; + ep->pkt_info[ep->cur_pkt].status = 0; + } else { + ep->pkt_info[ep->cur_pkt].length = ep->data_per_frame; + ep->pkt_info[ep->cur_pkt].offset = + ep->cur_pkt_dma_addr - dma_addr; + ep->pkt_info[ep->cur_pkt].status = -DWC_E_NO_DATA; + } + ep->cur_pkt_addr += offset; + ep->cur_pkt_dma_addr += offset; + ep->cur_pkt++; +} + +/** + * This function sets latest iso packet information(DDMA mode) + * + * @param core_if Programming view of DWC_otg controller. + * @param dwc_ep The EP to start the transfer on. + * + */ +static void set_ddma_iso_pkts_info(dwc_otg_core_if_t * core_if, + dwc_ep_t * dwc_ep) +{ + dwc_otg_dev_dma_desc_t *dma_desc; + dev_dma_desc_sts_t sts = {.d32 = 0 }; + iso_pkt_info_t *iso_packet; + uint32_t data_per_desc; + uint32_t offset; + int i, j; + + iso_packet = dwc_ep->pkt_info; + + /** Reinit closed DMA Descriptors*/ + /** ISO OUT EP */ + if (dwc_ep->is_in == 0) { + dma_desc = + dwc_ep->iso_desc_addr + + dwc_ep->desc_cnt * dwc_ep->proc_buf_num; + offset = 0; + + for (i = 0; i < dwc_ep->desc_cnt - dwc_ep->pkt_per_frm; + i += dwc_ep->pkt_per_frm) { + for (j = 0; j < dwc_ep->pkt_per_frm; ++j) { + data_per_desc = + ((j + 1) * dwc_ep->maxpacket > + dwc_ep-> + data_per_frame) ? dwc_ep->data_per_frame - + j * dwc_ep->maxpacket : dwc_ep->maxpacket; + data_per_desc += + (data_per_desc % 4) ? (4 - + data_per_desc % + 4) : 0; + + sts.d32 = dma_desc->status.d32; + + /* Write status in iso_packet_decsriptor */ + iso_packet->status = + sts.b_iso_out.rxsts + + (sts.b_iso_out.bs ^ BS_DMA_DONE); + if (iso_packet->status) { + iso_packet->status = -DWC_E_NO_DATA; + } + + /* Received data length */ + if (!sts.b_iso_out.rxbytes) { + iso_packet->length = + data_per_desc - + sts.b_iso_out.rxbytes; + } else { + iso_packet->length = + data_per_desc - + sts.b_iso_out.rxbytes + (4 - + dwc_ep->data_per_frame + % 4); + } + + iso_packet->offset = offset; + + offset += data_per_desc; + dma_desc++; + iso_packet++; + } + } + + for (j = 0; j < dwc_ep->pkt_per_frm - 1; ++j) { + data_per_desc = + ((j + 1) * dwc_ep->maxpacket > + dwc_ep->data_per_frame) ? dwc_ep->data_per_frame - + j * dwc_ep->maxpacket : dwc_ep->maxpacket; + data_per_desc += + (data_per_desc % 4) ? (4 - data_per_desc % 4) : 0; + + sts.d32 = dma_desc->status.d32; + + /* Write status in iso_packet_decsriptor */ + iso_packet->status = + sts.b_iso_out.rxsts + + (sts.b_iso_out.bs ^ BS_DMA_DONE); + if (iso_packet->status) { + iso_packet->status = -DWC_E_NO_DATA; + } + + /* Received data length */ + iso_packet->length = + dwc_ep->data_per_frame - sts.b_iso_out.rxbytes; + + iso_packet->offset = offset; + + offset += data_per_desc; + iso_packet++; + dma_desc++; + } + + sts.d32 = dma_desc->status.d32; + + /* Write status in iso_packet_decsriptor */ + iso_packet->status = + sts.b_iso_out.rxsts + (sts.b_iso_out.bs ^ BS_DMA_DONE); + if (iso_packet->status) { + iso_packet->status = -DWC_E_NO_DATA; + } + /* Received data length */ + if (!sts.b_iso_out.rxbytes) { + iso_packet->length = + dwc_ep->data_per_frame - sts.b_iso_out.rxbytes; + } else { + iso_packet->length = + dwc_ep->data_per_frame - sts.b_iso_out.rxbytes + + (4 - dwc_ep->data_per_frame % 4); + } + + iso_packet->offset = offset; + } else { +/** ISO IN EP */ + + dma_desc = + dwc_ep->iso_desc_addr + + dwc_ep->desc_cnt * dwc_ep->proc_buf_num; + + for (i = 0; i < dwc_ep->desc_cnt - 1; i++) { + sts.d32 = dma_desc->status.d32; + + /* Write status in iso packet descriptor */ + iso_packet->status = + sts.b_iso_in.txsts + + (sts.b_iso_in.bs ^ BS_DMA_DONE); + if (iso_packet->status != 0) { + iso_packet->status = -DWC_E_NO_DATA; + + } + /* Bytes has been transfered */ + iso_packet->length = + dwc_ep->data_per_frame - sts.b_iso_in.txbytes; + + dma_desc++; + iso_packet++; + } + + sts.d32 = dma_desc->status.d32; + while (sts.b_iso_in.bs == BS_DMA_BUSY) { + sts.d32 = dma_desc->status.d32; + } + + /* Write status in iso packet descriptor ??? do be done with ERROR codes */ + iso_packet->status = + sts.b_iso_in.txsts + (sts.b_iso_in.bs ^ BS_DMA_DONE); + if (iso_packet->status != 0) { + iso_packet->status = -DWC_E_NO_DATA; + } + + /* Bytes has been transfered */ + iso_packet->length = + dwc_ep->data_per_frame - sts.b_iso_in.txbytes; + } +} + +/** + * This function reinitialize DMA Descriptors for Isochronous transfer + * + * @param core_if Programming view of DWC_otg controller. + * @param dwc_ep The EP to start the transfer on. + * + */ +static void reinit_ddma_iso_xfer(dwc_otg_core_if_t * core_if, dwc_ep_t * dwc_ep) +{ + int i, j; + dwc_otg_dev_dma_desc_t *dma_desc; + dma_addr_t dma_ad; + volatile uint32_t *addr; + dev_dma_desc_sts_t sts = {.d32 = 0 }; + uint32_t data_per_desc; + + if (dwc_ep->is_in == 0) { + addr = &core_if->dev_if->out_ep_regs[dwc_ep->num]->doepctl; + } else { + addr = &core_if->dev_if->in_ep_regs[dwc_ep->num]->diepctl; + } + + if (dwc_ep->proc_buf_num == 0) { + /** Buffer 0 descriptors setup */ + dma_ad = dwc_ep->dma_addr0; + } else { + /** Buffer 1 descriptors setup */ + dma_ad = dwc_ep->dma_addr1; + } + + /** Reinit closed DMA Descriptors*/ + /** ISO OUT EP */ + if (dwc_ep->is_in == 0) { + dma_desc = + dwc_ep->iso_desc_addr + + dwc_ep->desc_cnt * dwc_ep->proc_buf_num; + + sts.b_iso_out.bs = BS_HOST_READY; + sts.b_iso_out.rxsts = 0; + sts.b_iso_out.l = 0; + sts.b_iso_out.sp = 0; + sts.b_iso_out.ioc = 0; + sts.b_iso_out.pid = 0; + sts.b_iso_out.framenum = 0; + + for (i = 0; i < dwc_ep->desc_cnt - dwc_ep->pkt_per_frm; + i += dwc_ep->pkt_per_frm) { + for (j = 0; j < dwc_ep->pkt_per_frm; ++j) { + data_per_desc = + ((j + 1) * dwc_ep->maxpacket > + dwc_ep-> + data_per_frame) ? dwc_ep->data_per_frame - + j * dwc_ep->maxpacket : dwc_ep->maxpacket; + data_per_desc += + (data_per_desc % 4) ? (4 - + data_per_desc % + 4) : 0; + sts.b_iso_out.rxbytes = data_per_desc; + dma_desc->buf = dma_ad; + dma_desc->status.d32 = sts.d32; + + dma_ad += data_per_desc; + dma_desc++; + } + } + + for (j = 0; j < dwc_ep->pkt_per_frm - 1; ++j) { + + data_per_desc = + ((j + 1) * dwc_ep->maxpacket > + dwc_ep->data_per_frame) ? dwc_ep->data_per_frame - + j * dwc_ep->maxpacket : dwc_ep->maxpacket; + data_per_desc += + (data_per_desc % 4) ? (4 - data_per_desc % 4) : 0; + sts.b_iso_out.rxbytes = data_per_desc; + + dma_desc->buf = dma_ad; + dma_desc->status.d32 = sts.d32; + + dma_desc++; + dma_ad += data_per_desc; + } + + sts.b_iso_out.ioc = 1; + sts.b_iso_out.l = dwc_ep->proc_buf_num; + + data_per_desc = + ((j + 1) * dwc_ep->maxpacket > + dwc_ep->data_per_frame) ? dwc_ep->data_per_frame - + j * dwc_ep->maxpacket : dwc_ep->maxpacket; + data_per_desc += + (data_per_desc % 4) ? (4 - data_per_desc % 4) : 0; + sts.b_iso_out.rxbytes = data_per_desc; + + dma_desc->buf = dma_ad; + dma_desc->status.d32 = sts.d32; + } else { +/** ISO IN EP */ + + dma_desc = + dwc_ep->iso_desc_addr + + dwc_ep->desc_cnt * dwc_ep->proc_buf_num; + + sts.b_iso_in.bs = BS_HOST_READY; + sts.b_iso_in.txsts = 0; + sts.b_iso_in.sp = 0; + sts.b_iso_in.ioc = 0; + sts.b_iso_in.pid = dwc_ep->pkt_per_frm; + sts.b_iso_in.framenum = dwc_ep->next_frame; + sts.b_iso_in.txbytes = dwc_ep->data_per_frame; + sts.b_iso_in.l = 0; + + for (i = 0; i < dwc_ep->desc_cnt - 1; i++) { + dma_desc->buf = dma_ad; + dma_desc->status.d32 = sts.d32; + + sts.b_iso_in.framenum += dwc_ep->bInterval; + dma_ad += dwc_ep->data_per_frame; + dma_desc++; + } + + sts.b_iso_in.ioc = 1; + sts.b_iso_in.l = dwc_ep->proc_buf_num; + + dma_desc->buf = dma_ad; + dma_desc->status.d32 = sts.d32; + + dwc_ep->next_frame = + sts.b_iso_in.framenum + dwc_ep->bInterval * 1; + } + dwc_ep->proc_buf_num = (dwc_ep->proc_buf_num ^ 1) & 0x1; +} + +/** + * This function is to handle Iso EP transfer complete interrupt + * in case Iso out packet was dropped + * + * @param core_if Programming view of DWC_otg controller. + * @param dwc_ep The EP for wihich transfer complete was asserted + * + */ +static uint32_t handle_iso_out_pkt_dropped(dwc_otg_core_if_t * core_if, + dwc_ep_t * dwc_ep) +{ + uint32_t dma_addr; + uint32_t drp_pkt; + uint32_t drp_pkt_cnt; + deptsiz_data_t deptsiz = {.d32 = 0 }; + depctl_data_t depctl = {.d32 = 0 }; + int i; + + deptsiz.d32 = + DWC_READ_REG32(&core_if->dev_if-> + out_ep_regs[dwc_ep->num]->doeptsiz); + + drp_pkt = dwc_ep->pkt_cnt - deptsiz.b.pktcnt; + drp_pkt_cnt = dwc_ep->pkt_per_frm - (drp_pkt % dwc_ep->pkt_per_frm); + + /* Setting dropped packets status */ + for (i = 0; i < drp_pkt_cnt; ++i) { + dwc_ep->pkt_info[drp_pkt].status = -DWC_E_NO_DATA; + drp_pkt++; + deptsiz.b.pktcnt--; + } + + if (deptsiz.b.pktcnt > 0) { + deptsiz.b.xfersize = + dwc_ep->xfer_len - (dwc_ep->pkt_cnt - + deptsiz.b.pktcnt) * dwc_ep->maxpacket; + } else { + deptsiz.b.xfersize = 0; + deptsiz.b.pktcnt = 0; + } + + DWC_WRITE_REG32(&core_if->dev_if->out_ep_regs[dwc_ep->num]->doeptsiz, + deptsiz.d32); + + if (deptsiz.b.pktcnt > 0) { + if (dwc_ep->proc_buf_num) { + dma_addr = + dwc_ep->dma_addr1 + dwc_ep->xfer_len - + deptsiz.b.xfersize; + } else { + dma_addr = + dwc_ep->dma_addr0 + dwc_ep->xfer_len - + deptsiz.b.xfersize;; + } + + DWC_WRITE_REG32(&core_if->dev_if-> + out_ep_regs[dwc_ep->num]->doepdma, dma_addr); + + /** Re-enable endpoint, clear nak */ + depctl.d32 = 0; + depctl.b.epena = 1; + depctl.b.cnak = 1; + + DWC_MODIFY_REG32(&core_if->dev_if-> + out_ep_regs[dwc_ep->num]->doepctl, depctl.d32, + depctl.d32); + return 0; + } else { + return 1; + } +} + +/** + * This function sets iso packets information(PTI mode) + * + * @param core_if Programming view of DWC_otg controller. + * @param ep The EP to start the transfer on. + * + */ +static uint32_t set_iso_pkts_info(dwc_otg_core_if_t * core_if, dwc_ep_t * ep) +{ + int i, j; + dma_addr_t dma_ad; + iso_pkt_info_t *packet_info = ep->pkt_info; + uint32_t offset; + uint32_t frame_data; + deptsiz_data_t deptsiz; + + if (ep->proc_buf_num == 0) { + /** Buffer 0 descriptors setup */ + dma_ad = ep->dma_addr0; + } else { + /** Buffer 1 descriptors setup */ + dma_ad = ep->dma_addr1; + } + + if (ep->is_in) { + deptsiz.d32 = + DWC_READ_REG32(&core_if->dev_if->in_ep_regs[ep->num]-> + dieptsiz); + } else { + deptsiz.d32 = + DWC_READ_REG32(&core_if->dev_if->out_ep_regs[ep->num]-> + doeptsiz); + } + + if (!deptsiz.b.xfersize) { + offset = 0; + for (i = 0; i < ep->pkt_cnt; i += ep->pkt_per_frm) { + frame_data = ep->data_per_frame; + for (j = 0; j < ep->pkt_per_frm; ++j) { + + /* Packet status - is not set as initially + * it is set to 0 and if packet was sent + successfully, status field will remain 0*/ + + /* Bytes has been transfered */ + packet_info->length = + (ep->maxpacket < + frame_data) ? ep->maxpacket : frame_data; + + /* Received packet offset */ + packet_info->offset = offset; + offset += packet_info->length; + frame_data -= packet_info->length; + + packet_info++; + } + } + return 1; + } else { + /* This is a workaround for in case of Transfer Complete with + * PktDrpSts interrupts merging - in this case Transfer complete + * interrupt for Isoc Out Endpoint is asserted without PktDrpSts + * set and with DOEPTSIZ register non zero. Investigations showed, + * that this happens when Out packet is dropped, but because of + * interrupts merging during first interrupt handling PktDrpSts + * bit is cleared and for next merged interrupts it is not reset. + * In this case SW hadles the interrupt as if PktDrpSts bit is set. + */ + if (ep->is_in) { + return 1; + } else { + return handle_iso_out_pkt_dropped(core_if, ep); + } + } +} + +/** + * This function is to handle Iso EP transfer complete interrupt + * + * @param pcd The PCD + * @param ep The EP for which transfer complete was asserted + * + */ +static void complete_iso_ep(dwc_otg_pcd_t * pcd, dwc_otg_pcd_ep_t * ep) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(ep->pcd); + dwc_ep_t *dwc_ep = &ep->dwc_ep; + uint8_t is_last = 0; + + if (ep->dwc_ep.next_frame == 0xffffffff) { + DWC_WARN("Next frame is not set!\n"); + return; + } + + if (core_if->dma_enable) { + if (core_if->dma_desc_enable) { + set_ddma_iso_pkts_info(core_if, dwc_ep); + reinit_ddma_iso_xfer(core_if, dwc_ep); + is_last = 1; + } else { + if (core_if->pti_enh_enable) { + if (set_iso_pkts_info(core_if, dwc_ep)) { + dwc_ep->proc_buf_num = + (dwc_ep->proc_buf_num ^ 1) & 0x1; + dwc_otg_iso_ep_start_buf_transfer + (core_if, dwc_ep); + is_last = 1; + } + } else { + set_current_pkt_info(core_if, dwc_ep); + if (dwc_ep->cur_pkt >= dwc_ep->pkt_cnt) { + is_last = 1; + dwc_ep->cur_pkt = 0; + dwc_ep->proc_buf_num = + (dwc_ep->proc_buf_num ^ 1) & 0x1; + if (dwc_ep->proc_buf_num) { + dwc_ep->cur_pkt_addr = + dwc_ep->xfer_buff1; + dwc_ep->cur_pkt_dma_addr = + dwc_ep->dma_addr1; + } else { + dwc_ep->cur_pkt_addr = + dwc_ep->xfer_buff0; + dwc_ep->cur_pkt_dma_addr = + dwc_ep->dma_addr0; + } + + } + dwc_otg_iso_ep_start_frm_transfer(core_if, + dwc_ep); + } + } + } else { + set_current_pkt_info(core_if, dwc_ep); + if (dwc_ep->cur_pkt >= dwc_ep->pkt_cnt) { + is_last = 1; + dwc_ep->cur_pkt = 0; + dwc_ep->proc_buf_num = (dwc_ep->proc_buf_num ^ 1) & 0x1; + if (dwc_ep->proc_buf_num) { + dwc_ep->cur_pkt_addr = dwc_ep->xfer_buff1; + dwc_ep->cur_pkt_dma_addr = dwc_ep->dma_addr1; + } else { + dwc_ep->cur_pkt_addr = dwc_ep->xfer_buff0; + dwc_ep->cur_pkt_dma_addr = dwc_ep->dma_addr0; + } + + } + dwc_otg_iso_ep_start_frm_transfer(core_if, dwc_ep); + } + if (is_last) + dwc_otg_iso_buffer_done(pcd, ep, ep->iso_req_handle); +} +#endif /* DWC_EN_ISOC */ + +/** + * This function handle BNA interrupt for Non Isochronous EPs + * + */ +static void dwc_otg_pcd_handle_noniso_bna(dwc_otg_pcd_ep_t * ep) +{ + dwc_ep_t *dwc_ep = &ep->dwc_ep; + volatile uint32_t *addr; + depctl_data_t depctl = {.d32 = 0 }; + dwc_otg_pcd_t *pcd = ep->pcd; + dwc_otg_dev_dma_desc_t *dma_desc; + dev_dma_desc_sts_t sts = {.d32 = 0 }; + dwc_otg_core_if_t *core_if = ep->pcd->core_if; + int i, start; + + if (!dwc_ep->desc_cnt) + DWC_WARN("Ep%d %s Descriptor count = %d \n", dwc_ep->num, + (dwc_ep->is_in ? "IN" : "OUT"), dwc_ep->desc_cnt); + + if (core_if->core_params->cont_on_bna && !dwc_ep->is_in + && dwc_ep->type != DWC_OTG_EP_TYPE_CONTROL) { + uint32_t doepdma; + dwc_otg_dev_out_ep_regs_t *out_regs = + core_if->dev_if->out_ep_regs[dwc_ep->num]; + doepdma = DWC_READ_REG32(&(out_regs->doepdma)); + start = (doepdma - dwc_ep->dma_desc_addr)/sizeof(dwc_otg_dev_dma_desc_t); + dma_desc = &(dwc_ep->desc_addr[start]); + } else { + start = 0; + dma_desc = dwc_ep->desc_addr; + } + + + for (i = start; i < dwc_ep->desc_cnt; ++i, ++dma_desc) { + sts.d32 = dma_desc->status.d32; + sts.b.bs = BS_HOST_READY; + dma_desc->status.d32 = sts.d32; + } + + if (dwc_ep->is_in == 0) { + addr = + &GET_CORE_IF(pcd)->dev_if->out_ep_regs[dwc_ep->num]-> + doepctl; + } else { + addr = + &GET_CORE_IF(pcd)->dev_if->in_ep_regs[dwc_ep->num]->diepctl; + } + depctl.b.epena = 1; + depctl.b.cnak = 1; + DWC_MODIFY_REG32(addr, 0, depctl.d32); +} + +/** + * This function handles EP0 Control transfers. + * + * The state of the control transfers are tracked in + * ep0state. + */ +static void handle_ep0(dwc_otg_pcd_t * pcd) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_pcd_ep_t *ep0 = &pcd->ep0; + dev_dma_desc_sts_t desc_sts; + deptsiz0_data_t deptsiz; + uint32_t byte_count; + +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCDV, "%s()\n", __func__); + print_ep0_state(pcd); +#endif + +// DWC_PRINTF("HANDLE EP0\n"); + + switch (pcd->ep0state) { + case EP0_DISCONNECT: + break; + + case EP0_IDLE: + pcd->request_config = 0; + + pcd_setup(pcd); + break; + + case EP0_IN_DATA_PHASE: +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCD, "DATA_IN EP%d-%s: type=%d, mps=%d\n", + ep0->dwc_ep.num, (ep0->dwc_ep.is_in ? "IN" : "OUT"), + ep0->dwc_ep.type, ep0->dwc_ep.maxpacket); +#endif + + if (core_if->dma_enable != 0) { + /* + * For EP0 we can only program 1 packet at a time so we + * need to do the make calculations after each complete. + * Call write_packet to make the calculations, as in + * slave mode, and use those values to determine if we + * can complete. + */ + if (core_if->dma_desc_enable == 0) { + deptsiz.d32 = + DWC_READ_REG32(&core_if-> + dev_if->in_ep_regs[0]-> + dieptsiz); + byte_count = + ep0->dwc_ep.xfer_len - deptsiz.b.xfersize; + } else { + desc_sts = + core_if->dev_if->in_desc_addr->status; + byte_count = + ep0->dwc_ep.xfer_len - desc_sts.b.bytes; + } + ep0->dwc_ep.xfer_count += byte_count; + ep0->dwc_ep.xfer_buff += byte_count; + ep0->dwc_ep.dma_addr += byte_count; + } + if (ep0->dwc_ep.xfer_count < ep0->dwc_ep.total_len) { + dwc_otg_ep0_continue_transfer(GET_CORE_IF(pcd), + &ep0->dwc_ep); + DWC_DEBUGPL(DBG_PCD, "CONTINUE TRANSFER\n"); + } else if (ep0->dwc_ep.sent_zlp) { + dwc_otg_ep0_continue_transfer(GET_CORE_IF(pcd), + &ep0->dwc_ep); + ep0->dwc_ep.sent_zlp = 0; + DWC_DEBUGPL(DBG_PCD, "CONTINUE TRANSFER sent zlp\n"); + } else { + ep0_complete_request(ep0); + DWC_DEBUGPL(DBG_PCD, "COMPLETE TRANSFER\n"); + } + break; + case EP0_OUT_DATA_PHASE: +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCD, "DATA_OUT EP%d-%s: type=%d, mps=%d\n", + ep0->dwc_ep.num, (ep0->dwc_ep.is_in ? "IN" : "OUT"), + ep0->dwc_ep.type, ep0->dwc_ep.maxpacket); +#endif + if (core_if->dma_enable != 0) { + if (core_if->dma_desc_enable == 0) { + deptsiz.d32 = + DWC_READ_REG32(&core_if-> + dev_if->out_ep_regs[0]-> + doeptsiz); + byte_count = + ep0->dwc_ep.maxpacket - deptsiz.b.xfersize; + } else { + desc_sts = + core_if->dev_if->out_desc_addr->status; + byte_count = + ep0->dwc_ep.maxpacket - desc_sts.b.bytes; + } + ep0->dwc_ep.xfer_count += byte_count; + ep0->dwc_ep.xfer_buff += byte_count; + ep0->dwc_ep.dma_addr += byte_count; + } + if (ep0->dwc_ep.xfer_count < ep0->dwc_ep.total_len) { + dwc_otg_ep0_continue_transfer(GET_CORE_IF(pcd), + &ep0->dwc_ep); + DWC_DEBUGPL(DBG_PCD, "CONTINUE TRANSFER\n"); + } else if (ep0->dwc_ep.sent_zlp) { + dwc_otg_ep0_continue_transfer(GET_CORE_IF(pcd), + &ep0->dwc_ep); + ep0->dwc_ep.sent_zlp = 0; + DWC_DEBUGPL(DBG_PCD, "CONTINUE TRANSFER sent zlp\n"); + } else { + ep0_complete_request(ep0); + DWC_DEBUGPL(DBG_PCD, "COMPLETE TRANSFER\n"); + } + break; + + case EP0_IN_STATUS_PHASE: + case EP0_OUT_STATUS_PHASE: + DWC_DEBUGPL(DBG_PCD, "CASE: EP0_STATUS\n"); + ep0_complete_request(ep0); + pcd->ep0state = EP0_IDLE; + ep0->stopped = 1; + ep0->dwc_ep.is_in = 0; /* OUT for next SETUP */ + + /* Prepare for more SETUP Packets */ + if (core_if->dma_enable) { + ep0_out_start(core_if, pcd); + } + break; + + case EP0_STALL: + DWC_ERROR("EP0 STALLed, should not get here pcd_setup()\n"); + break; + } +#ifdef DEBUG_EP0 + print_ep0_state(pcd); +#endif +} + +/** + * Restart transfer + */ +static void restart_transfer(dwc_otg_pcd_t * pcd, const uint32_t epnum) +{ + dwc_otg_core_if_t *core_if; + dwc_otg_dev_if_t *dev_if; + deptsiz_data_t dieptsiz = {.d32 = 0 }; + dwc_otg_pcd_ep_t *ep; + + ep = get_in_ep(pcd, epnum); + +#ifdef DWC_EN_ISOC + if (ep->dwc_ep.type == DWC_OTG_EP_TYPE_ISOC) { + return; + } +#endif /* DWC_EN_ISOC */ + + core_if = GET_CORE_IF(pcd); + dev_if = core_if->dev_if; + + dieptsiz.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->dieptsiz); + + DWC_DEBUGPL(DBG_PCD, "xfer_buff=%p xfer_count=%0x xfer_len=%0x" + " stopped=%d\n", ep->dwc_ep.xfer_buff, + ep->dwc_ep.xfer_count, ep->dwc_ep.xfer_len, ep->stopped); + /* + * If xfersize is 0 and pktcnt in not 0, resend the last packet. + */ + if (dieptsiz.b.pktcnt && dieptsiz.b.xfersize == 0 && + ep->dwc_ep.start_xfer_buff != 0) { + if (ep->dwc_ep.total_len <= ep->dwc_ep.maxpacket) { + ep->dwc_ep.xfer_count = 0; + ep->dwc_ep.xfer_buff = ep->dwc_ep.start_xfer_buff; + ep->dwc_ep.xfer_len = ep->dwc_ep.xfer_count; + } else { + ep->dwc_ep.xfer_count -= ep->dwc_ep.maxpacket; + /* convert packet size to dwords. */ + ep->dwc_ep.xfer_buff -= ep->dwc_ep.maxpacket; + ep->dwc_ep.xfer_len = ep->dwc_ep.xfer_count; + } + ep->stopped = 0; + DWC_DEBUGPL(DBG_PCD, "xfer_buff=%p xfer_count=%0x " + "xfer_len=%0x stopped=%d\n", + ep->dwc_ep.xfer_buff, + ep->dwc_ep.xfer_count, ep->dwc_ep.xfer_len, + ep->stopped); + if (epnum == 0) { + dwc_otg_ep0_start_transfer(core_if, &ep->dwc_ep); + } else { + dwc_otg_ep_start_transfer(core_if, &ep->dwc_ep); + } + } +} + +/* + * This function create new nextep sequnce based on Learn Queue. + * + * @param core_if Programming view of DWC_otg controller + */ +void predict_nextep_seq( dwc_otg_core_if_t * core_if) +{ + dwc_otg_device_global_regs_t *dev_global_regs = + core_if->dev_if->dev_global_regs; + const uint32_t TOKEN_Q_DEPTH = core_if->hwcfg2.b.dev_token_q_depth; + /* Number of Token Queue Registers */ + const int DTKNQ_REG_CNT = (TOKEN_Q_DEPTH + 7) / 8; + dtknq1_data_t dtknqr1; + uint32_t in_tkn_epnums[4]; + uint8_t seqnum[MAX_EPS_CHANNELS]; + uint8_t intkn_seq[TOKEN_Q_DEPTH]; + grstctl_t resetctl = {.d32 = 0 }; + uint8_t temp; + int ndx = 0; + int start = 0; + int end = 0; + int sort_done = 0; + int i = 0; + volatile uint32_t *addr = &dev_global_regs->dtknqr1; + + + DWC_DEBUGPL(DBG_PCD,"dev_token_q_depth=%d\n",TOKEN_Q_DEPTH); + + /* Read the DTKNQ Registers */ + for (i = 0; i < DTKNQ_REG_CNT; i++) { + in_tkn_epnums[i] = DWC_READ_REG32(addr); + DWC_DEBUGPL(DBG_PCDV, "DTKNQR%d=0x%08x\n", i + 1, + in_tkn_epnums[i]); + if (addr == &dev_global_regs->dvbusdis) { + addr = &dev_global_regs->dtknqr3_dthrctl; + } else { + ++addr; + } + + } + + /* Copy the DTKNQR1 data to the bit field. */ + dtknqr1.d32 = in_tkn_epnums[0]; + if (dtknqr1.b.wrap_bit) { + ndx = dtknqr1.b.intknwptr; + end = ndx -1; + if (end < 0) + end = TOKEN_Q_DEPTH -1; + } else { + ndx = 0; + end = dtknqr1.b.intknwptr -1; + if (end < 0) + end = 0; + } + start = ndx; + + /* Fill seqnum[] by initial values: EP number + 31 */ + for (i=0; i <= core_if->dev_if->num_in_eps; i++) { + seqnum[i] = i +31; + } + + /* Fill intkn_seq[] from in_tkn_epnums[0] */ + for (i=0; i < 6; i++) + intkn_seq[i] = (in_tkn_epnums[0] >> ((7-i) * 4)) & 0xf; + + if (TOKEN_Q_DEPTH > 6) { + /* Fill intkn_seq[] from in_tkn_epnums[1] */ + for (i=6; i < 14; i++) + intkn_seq[i] = + (in_tkn_epnums[1] >> ((7 - (i - 6)) * 4)) & 0xf; + } + + if (TOKEN_Q_DEPTH > 14) { + /* Fill intkn_seq[] from in_tkn_epnums[1] */ + for (i=14; i < 22; i++) + intkn_seq[i] = + (in_tkn_epnums[2] >> ((7 - (i - 14)) * 4)) & 0xf; + } + + if (TOKEN_Q_DEPTH > 22) { + /* Fill intkn_seq[] from in_tkn_epnums[1] */ + for (i=22; i < 30; i++) + intkn_seq[i] = + (in_tkn_epnums[3] >> ((7 - (i - 22)) * 4)) & 0xf; + } + + DWC_DEBUGPL(DBG_PCDV, "%s start=%d end=%d intkn_seq[]:\n", __func__, + start, end); + for (i=0; idev_if->num_in_eps; i++) { + if (core_if->nextep_seq[i] == 0xff ) + seqnum[i] = 0xff; + } + + /* Sort seqnum[] */ + sort_done = 0; + while (!sort_done) { + sort_done = 1; + for (i=0; idev_if->num_in_eps; i++) { + if (seqnum[i] > seqnum[i+1]) { + temp = seqnum[i]; + seqnum[i] = seqnum[i+1]; + seqnum[i+1] = temp; + sort_done = 0; + } + } + } + + ndx = start + seqnum[0]; + if (ndx >= TOKEN_Q_DEPTH) + ndx = ndx % TOKEN_Q_DEPTH; + core_if->first_in_nextep_seq = intkn_seq[ndx]; + + /* Update seqnum[] by EP numbers */ + for (i=0; i<=core_if->dev_if->num_in_eps; i++) { + ndx = start + i; + if (seqnum[i] < 31) { + ndx = start + seqnum[i]; + if (ndx >= TOKEN_Q_DEPTH) + ndx = ndx % TOKEN_Q_DEPTH; + seqnum[i] = intkn_seq[ndx]; + } else { + if (seqnum[i] < 0xff) { + seqnum[i] = seqnum[i] - 31; + } else { + break; + } + } + } + + /* Update nextep_seq[] based on seqnum[] */ + for (i=0; idev_if->num_in_eps; i++) { + if (seqnum[i] != 0xff) { + if (seqnum[i+1] != 0xff) { + core_if->nextep_seq[seqnum[i]] = seqnum[i+1]; + } else { + core_if->nextep_seq[seqnum[i]] = core_if->first_in_nextep_seq; + break; + } + } else { + break; + } + } + + DWC_DEBUGPL(DBG_PCDV, "%s first_in_nextep_seq= %2d; nextep_seq[]:\n", + __func__, core_if->first_in_nextep_seq); + for (i=0; i <= core_if->dev_if->num_in_eps; i++) { + DWC_DEBUGPL(DBG_PCDV,"%2d\n", core_if->nextep_seq[i]); + } + + /* Flush the Learning Queue */ + resetctl.d32 = DWC_READ_REG32(&core_if->core_global_regs->grstctl); + resetctl.b.intknqflsh = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->grstctl, resetctl.d32); + + +} + +/** + * handle the IN EP disable interrupt. + */ +static inline void handle_in_ep_disable_intr(dwc_otg_pcd_t * pcd, + const uint32_t epnum) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + deptsiz_data_t dieptsiz = {.d32 = 0 }; + dctl_data_t dctl = {.d32 = 0 }; + dwc_otg_pcd_ep_t *ep; + dwc_ep_t *dwc_ep; + gintmsk_data_t gintmsk_data; + depctl_data_t depctl; + uint32_t diepdma; + uint32_t remain_to_transfer = 0; + uint8_t i; + uint32_t xfer_size; + + ep = get_in_ep(pcd, epnum); + dwc_ep = &ep->dwc_ep; + + if (dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) { + dwc_otg_flush_tx_fifo(core_if, dwc_ep->tx_fifo_num); + complete_ep(ep); + return; + } + + DWC_DEBUGPL(DBG_PCD, "diepctl%d=%0x\n", epnum, + DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->diepctl)); + dieptsiz.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->dieptsiz); + depctl.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->diepctl); + + DWC_DEBUGPL(DBG_ANY, "pktcnt=%d size=%d\n", + dieptsiz.b.pktcnt, dieptsiz.b.xfersize); + + if ((core_if->start_predict == 0) || (depctl.b.eptype & 1)) { + if (ep->stopped) { + if (core_if->en_multiple_tx_fifo) + /* Flush the Tx FIFO */ + dwc_otg_flush_tx_fifo(core_if, dwc_ep->tx_fifo_num); + /* Clear the Global IN NP NAK */ + dctl.d32 = 0; + dctl.b.cgnpinnak = 1; + DWC_MODIFY_REG32(&dev_if->dev_global_regs->dctl, dctl.d32, dctl.d32); + /* Restart the transaction */ + if (dieptsiz.b.pktcnt != 0 || dieptsiz.b.xfersize != 0) { + restart_transfer(pcd, epnum); + } + } else { + /* Restart the transaction */ + if (dieptsiz.b.pktcnt != 0 || dieptsiz.b.xfersize != 0) { + restart_transfer(pcd, epnum); + } + DWC_DEBUGPL(DBG_ANY, "STOPPED!!!\n"); + } + return; + } + + if (core_if->start_predict > 2) { // NP IN EP + core_if->start_predict--; + return; + } + + core_if->start_predict--; + + if (core_if->start_predict == 1) { // All NP IN Ep's disabled now + + predict_nextep_seq(core_if); + + /* Update all active IN EP's NextEP field based of nextep_seq[] */ + for ( i = 0; i <= core_if->dev_if->num_in_eps; i++) { + depctl.d32 = + DWC_READ_REG32(&dev_if->in_ep_regs[i]->diepctl); + if (core_if->nextep_seq[i] != 0xff) { // Active NP IN EP + depctl.b.nextep = core_if->nextep_seq[i]; + DWC_WRITE_REG32(&dev_if->in_ep_regs[i]->diepctl, depctl.d32); + } + } + /* Flush Shared NP TxFIFO */ + dwc_otg_flush_tx_fifo(core_if, 0); + /* Rewind buffers */ + if (!core_if->dma_desc_enable) { + i = core_if->first_in_nextep_seq; + do { + ep = get_in_ep(pcd, i); + dieptsiz.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[i]->dieptsiz); + xfer_size = ep->dwc_ep.total_len - ep->dwc_ep.xfer_count; + if (xfer_size > ep->dwc_ep.maxxfer) + xfer_size = ep->dwc_ep.maxxfer; + depctl.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[i]->diepctl); + if (dieptsiz.b.pktcnt != 0) { + if (xfer_size == 0) { + remain_to_transfer = 0; + } else { + if ((xfer_size % ep->dwc_ep.maxpacket) == 0) { + remain_to_transfer = + dieptsiz.b.pktcnt * ep->dwc_ep.maxpacket; + } else { + remain_to_transfer = ((dieptsiz.b.pktcnt -1) * ep->dwc_ep.maxpacket) + + (xfer_size % ep->dwc_ep.maxpacket); + } + } + diepdma = DWC_READ_REG32(&dev_if->in_ep_regs[i]->diepdma); + dieptsiz.b.xfersize = remain_to_transfer; + DWC_WRITE_REG32(&dev_if->in_ep_regs[i]->dieptsiz, dieptsiz.d32); + diepdma = ep->dwc_ep.dma_addr + (xfer_size - remain_to_transfer); + DWC_WRITE_REG32(&dev_if->in_ep_regs[i]->diepdma, diepdma); + } + i = core_if->nextep_seq[i]; + } while (i != core_if->first_in_nextep_seq); + } else { // dma_desc_enable + DWC_PRINTF("%s Learning Queue not supported in DDMA\n", __func__); + } + + /* Restart transfers in predicted sequences */ + i = core_if->first_in_nextep_seq; + do { + dieptsiz.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[i]->dieptsiz); + depctl.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[i]->diepctl); + if (dieptsiz.b.pktcnt != 0) { + depctl.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[i]->diepctl); + depctl.b.epena = 1; + depctl.b.cnak = 1; + DWC_WRITE_REG32(&dev_if->in_ep_regs[i]->diepctl, depctl.d32); + } + i = core_if->nextep_seq[i]; + } while (i != core_if->first_in_nextep_seq); + + /* Clear the global non-periodic IN NAK handshake */ + dctl.d32 = 0; + dctl.b.cgnpinnak = 1; + DWC_MODIFY_REG32(&dev_if->dev_global_regs->dctl, dctl.d32, dctl.d32); + + /* Unmask EP Mismatch interrupt */ + gintmsk_data.d32 = 0; + gintmsk_data.b.epmismatch = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk, 0, gintmsk_data.d32); + + core_if->start_predict = 0; + + } +} + +/** + * Handler for the IN EP timeout handshake interrupt. + */ +static inline void handle_in_ep_timeout_intr(dwc_otg_pcd_t * pcd, + const uint32_t epnum) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + +#ifdef DEBUG + deptsiz_data_t dieptsiz = {.d32 = 0 }; + uint32_t num = 0; +#endif + dctl_data_t dctl = {.d32 = 0 }; + dwc_otg_pcd_ep_t *ep; + + gintmsk_data_t intr_mask = {.d32 = 0 }; + + ep = get_in_ep(pcd, epnum); + + /* Disable the NP Tx Fifo Empty Interrrupt */ + if (!core_if->dma_enable) { + intr_mask.b.nptxfempty = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk, + intr_mask.d32, 0); + } + /** @todo NGS Check EP type. + * Implement for Periodic EPs */ + /* + * Non-periodic EP + */ + /* Enable the Global IN NAK Effective Interrupt */ + intr_mask.b.ginnakeff = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk, 0, intr_mask.d32); + + /* Set Global IN NAK */ + dctl.b.sgnpinnak = 1; + DWC_MODIFY_REG32(&dev_if->dev_global_regs->dctl, dctl.d32, dctl.d32); + + ep->stopped = 1; + +#ifdef DEBUG + dieptsiz.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[num]->dieptsiz); + DWC_DEBUGPL(DBG_ANY, "pktcnt=%d size=%d\n", + dieptsiz.b.pktcnt, dieptsiz.b.xfersize); +#endif + +#ifdef DISABLE_PERIODIC_EP + /* + * Set the NAK bit for this EP to + * start the disable process. + */ + diepctl.d32 = 0; + diepctl.b.snak = 1; + DWC_MODIFY_REG32(&dev_if->in_ep_regs[num]->diepctl, diepctl.d32, + diepctl.d32); + ep->disabling = 1; + ep->stopped = 1; +#endif +} + +/** + * Handler for the IN EP NAK interrupt. + */ +static inline int32_t handle_in_ep_nak_intr(dwc_otg_pcd_t * pcd, + const uint32_t epnum) +{ + /** @todo implement ISR */ + dwc_otg_core_if_t *core_if; + diepmsk_data_t intr_mask = {.d32 = 0 }; + + DWC_PRINTF("INTERRUPT Handler not implemented for %s\n", "IN EP NAK"); + core_if = GET_CORE_IF(pcd); + intr_mask.b.nak = 1; + + if (core_if->multiproc_int_enable) { + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs-> + diepeachintmsk[epnum], intr_mask.d32, 0); + } else { + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->diepmsk, + intr_mask.d32, 0); + } + + return 1; +} + +/** + * Handler for the OUT EP Babble interrupt. + */ +static inline int32_t handle_out_ep_babble_intr(dwc_otg_pcd_t * pcd, + const uint32_t epnum) +{ + /** @todo implement ISR */ + dwc_otg_core_if_t *core_if; + doepmsk_data_t intr_mask = {.d32 = 0 }; + + DWC_PRINTF("INTERRUPT Handler not implemented for %s\n", + "OUT EP Babble"); + core_if = GET_CORE_IF(pcd); + intr_mask.b.babble = 1; + + if (core_if->multiproc_int_enable) { + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs-> + doepeachintmsk[epnum], intr_mask.d32, 0); + } else { + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->doepmsk, + intr_mask.d32, 0); + } + + return 1; +} + +/** + * Handler for the OUT EP NAK interrupt. + */ +static inline int32_t handle_out_ep_nak_intr(dwc_otg_pcd_t * pcd, + const uint32_t epnum) +{ + /** @todo implement ISR */ + dwc_otg_core_if_t *core_if; + doepmsk_data_t intr_mask = {.d32 = 0 }; + + DWC_DEBUGPL(DBG_ANY, "INTERRUPT Handler not implemented for %s\n", "OUT EP NAK"); + core_if = GET_CORE_IF(pcd); + intr_mask.b.nak = 1; + + if (core_if->multiproc_int_enable) { + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs-> + doepeachintmsk[epnum], intr_mask.d32, 0); + } else { + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->doepmsk, + intr_mask.d32, 0); + } + + return 1; +} + +/** + * Handler for the OUT EP NYET interrupt. + */ +static inline int32_t handle_out_ep_nyet_intr(dwc_otg_pcd_t * pcd, + const uint32_t epnum) +{ + /** @todo implement ISR */ + dwc_otg_core_if_t *core_if; + doepmsk_data_t intr_mask = {.d32 = 0 }; + + DWC_PRINTF("INTERRUPT Handler not implemented for %s\n", "OUT EP NYET"); + core_if = GET_CORE_IF(pcd); + intr_mask.b.nyet = 1; + + if (core_if->multiproc_int_enable) { + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs-> + doepeachintmsk[epnum], intr_mask.d32, 0); + } else { + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->doepmsk, + intr_mask.d32, 0); + } + + return 1; +} + +/** + * This interrupt indicates that an IN EP has a pending Interrupt. + * The sequence for handling the IN EP interrupt is shown below: + * -# Read the Device All Endpoint Interrupt register + * -# Repeat the following for each IN EP interrupt bit set (from + * LSB to MSB). + * -# Read the Device Endpoint Interrupt (DIEPINTn) register + * -# If "Transfer Complete" call the request complete function + * -# If "Endpoint Disabled" complete the EP disable procedure. + * -# If "AHB Error Interrupt" log error + * -# If "Time-out Handshake" log error + * -# If "IN Token Received when TxFIFO Empty" write packet to Tx + * FIFO. + * -# If "IN Token EP Mismatch" (disable, this is handled by EP + * Mismatch Interrupt) + */ +static int32_t dwc_otg_pcd_handle_in_ep_intr(dwc_otg_pcd_t * pcd) +{ +#define CLEAR_IN_EP_INTR(__core_if,__epnum,__intr) \ +do { \ + diepint_data_t diepint = {.d32=0}; \ + diepint.b.__intr = 1; \ + DWC_WRITE_REG32(&__core_if->dev_if->in_ep_regs[__epnum]->diepint, \ + diepint.d32); \ +} while (0) + + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + dwc_otg_dev_if_t *dev_if = core_if->dev_if; + diepint_data_t diepint = {.d32 = 0 }; + depctl_data_t depctl = {.d32 = 0 }; + uint32_t ep_intr; + uint32_t epnum = 0; + dwc_otg_pcd_ep_t *ep; + dwc_ep_t *dwc_ep; + gintmsk_data_t intr_mask = {.d32 = 0 }; + + DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, pcd); + + /* Read in the device interrupt bits */ + ep_intr = dwc_otg_read_dev_all_in_ep_intr(core_if); + + /* Service the Device IN interrupts for each endpoint */ + while (ep_intr) { + if (ep_intr & 0x1) { + uint32_t empty_msk; + /* Get EP pointer */ + ep = get_in_ep(pcd, epnum); + dwc_ep = &ep->dwc_ep; + + depctl.d32 = + DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->diepctl); + empty_msk = + DWC_READ_REG32(&dev_if-> + dev_global_regs->dtknqr4_fifoemptymsk); + + DWC_DEBUGPL(DBG_PCDV, + "IN EP INTERRUPT - %d\nepmty_msk - %8x diepctl - %8x\n", + epnum, empty_msk, depctl.d32); + + DWC_DEBUGPL(DBG_PCD, + "EP%d-%s: type=%d, mps=%d\n", + dwc_ep->num, (dwc_ep->is_in ? "IN" : "OUT"), + dwc_ep->type, dwc_ep->maxpacket); + + diepint.d32 = + dwc_otg_read_dev_in_ep_intr(core_if, dwc_ep); + + DWC_DEBUGPL(DBG_PCDV, + "EP %d Interrupt Register - 0x%x\n", epnum, + diepint.d32); + /* Transfer complete */ + if (diepint.b.xfercompl) { + /* Disable the NP Tx FIFO Empty + * Interrupt */ + if (core_if->en_multiple_tx_fifo == 0) { + intr_mask.b.nptxfempty = 1; + DWC_MODIFY_REG32 + (&core_if->core_global_regs->gintmsk, + intr_mask.d32, 0); + } else { + /* Disable the Tx FIFO Empty Interrupt for this EP */ + uint32_t fifoemptymsk = + 0x1 << dwc_ep->num; + DWC_MODIFY_REG32(&core_if-> + dev_if->dev_global_regs->dtknqr4_fifoemptymsk, + fifoemptymsk, 0); + } + /* Clear the bit in DIEPINTn for this interrupt */ + CLEAR_IN_EP_INTR(core_if, epnum, xfercompl); + + /* Complete the transfer */ + if (epnum == 0) { + handle_ep0(pcd); + } +#ifdef DWC_EN_ISOC + else if (dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) { + if (!ep->stopped) + complete_iso_ep(pcd, ep); + } +#endif /* DWC_EN_ISOC */ +#ifdef DWC_UTE_PER_IO + else if (dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) { + if (!ep->stopped) + complete_xiso_ep(ep); + } +#endif /* DWC_UTE_PER_IO */ + else { + if (dwc_ep->type == DWC_OTG_EP_TYPE_ISOC && + dwc_ep->bInterval > 1) { + dwc_ep->frame_num += dwc_ep->bInterval; + if (dwc_ep->frame_num > 0x3FFF) + { + dwc_ep->frm_overrun = 1; + dwc_ep->frame_num &= 0x3FFF; + } else + dwc_ep->frm_overrun = 0; + } + complete_ep(ep); + if(diepint.b.nak) + CLEAR_IN_EP_INTR(core_if, epnum, nak); + } + } + /* Endpoint disable */ + if (diepint.b.epdisabled) { + DWC_DEBUGPL(DBG_ANY, "EP%d IN disabled\n", + epnum); + handle_in_ep_disable_intr(pcd, epnum); + + /* Clear the bit in DIEPINTn for this interrupt */ + CLEAR_IN_EP_INTR(core_if, epnum, epdisabled); + } + /* AHB Error */ + if (diepint.b.ahberr) { + DWC_ERROR("EP%d IN AHB Error\n", epnum); + /* Clear the bit in DIEPINTn for this interrupt */ + CLEAR_IN_EP_INTR(core_if, epnum, ahberr); + } + /* TimeOUT Handshake (non-ISOC IN EPs) */ + if (diepint.b.timeout) { + DWC_ERROR("EP%d IN Time-out\n", epnum); + handle_in_ep_timeout_intr(pcd, epnum); + + CLEAR_IN_EP_INTR(core_if, epnum, timeout); + } + /** IN Token received with TxF Empty */ + if (diepint.b.intktxfemp) { + DWC_DEBUGPL(DBG_ANY, + "EP%d IN TKN TxFifo Empty\n", + epnum); + if (!ep->stopped && epnum != 0) { + + diepmsk_data_t diepmsk = {.d32 = 0 }; + diepmsk.b.intktxfemp = 1; + + if (core_if->multiproc_int_enable) { + DWC_MODIFY_REG32 + (&dev_if->dev_global_regs->diepeachintmsk + [epnum], diepmsk.d32, 0); + } else { + DWC_MODIFY_REG32 + (&dev_if->dev_global_regs->diepmsk, + diepmsk.d32, 0); + } + } else if (core_if->dma_desc_enable + && epnum == 0 + && pcd->ep0state == + EP0_OUT_STATUS_PHASE) { + // EP0 IN set STALL + depctl.d32 = + DWC_READ_REG32(&dev_if->in_ep_regs + [epnum]->diepctl); + + /* set the disable and stall bits */ + if (depctl.b.epena) { + depctl.b.epdis = 1; + } + depctl.b.stall = 1; + DWC_WRITE_REG32(&dev_if->in_ep_regs + [epnum]->diepctl, + depctl.d32); + } + CLEAR_IN_EP_INTR(core_if, epnum, intktxfemp); + } + /** IN Token Received with EP mismatch */ + if (diepint.b.intknepmis) { + DWC_DEBUGPL(DBG_ANY, + "EP%d IN TKN EP Mismatch\n", epnum); + CLEAR_IN_EP_INTR(core_if, epnum, intknepmis); + } + /** IN Endpoint NAK Effective */ + if (diepint.b.inepnakeff) { + DWC_DEBUGPL(DBG_ANY, + "EP%d IN EP NAK Effective\n", + epnum); + /* Periodic EP */ + if (ep->disabling) { + depctl.d32 = 0; + depctl.b.snak = 1; + depctl.b.epdis = 1; + DWC_MODIFY_REG32(&dev_if->in_ep_regs + [epnum]->diepctl, + depctl.d32, + depctl.d32); + } + CLEAR_IN_EP_INTR(core_if, epnum, inepnakeff); + + } + + /** IN EP Tx FIFO Empty Intr */ + if (diepint.b.emptyintr) { + DWC_DEBUGPL(DBG_ANY, + "EP%d Tx FIFO Empty Intr \n", + epnum); + write_empty_tx_fifo(pcd, epnum); + + CLEAR_IN_EP_INTR(core_if, epnum, emptyintr); + + } + + /** IN EP BNA Intr */ + if (diepint.b.bna) { + CLEAR_IN_EP_INTR(core_if, epnum, bna); + if (core_if->dma_desc_enable) { +#ifdef DWC_EN_ISOC + if (dwc_ep->type == + DWC_OTG_EP_TYPE_ISOC) { + /* + * This checking is performed to prevent first "false" BNA + * handling occuring right after reconnect + */ + if (dwc_ep->next_frame != + 0xffffffff) + dwc_otg_pcd_handle_iso_bna(ep); + } else +#endif /* DWC_EN_ISOC */ + { + dwc_otg_pcd_handle_noniso_bna(ep); + } + } + } + /* NAK Interrutp */ + if (diepint.b.nak) { + DWC_DEBUGPL(DBG_ANY, "EP%d IN NAK Interrupt\n", + epnum); + if (ep->dwc_ep.type == DWC_OTG_EP_TYPE_ISOC) { + depctl_data_t depctl; + if (ep->dwc_ep.frame_num == 0xFFFFFFFF) { + ep->dwc_ep.frame_num = core_if->frame_num; + if (ep->dwc_ep.bInterval > 1) { + depctl.d32 = 0; + depctl.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->diepctl); + if (ep->dwc_ep.frame_num & 0x1) { + depctl.b.setd1pid = 1; + depctl.b.setd0pid = 0; + } else { + depctl.b.setd0pid = 1; + depctl.b.setd1pid = 0; + } + DWC_WRITE_REG32(&dev_if->in_ep_regs[epnum]->diepctl, depctl.d32); + } + start_next_request(ep); + } + ep->dwc_ep.frame_num += ep->dwc_ep.bInterval; + if (dwc_ep->frame_num > 0x3FFF) { + dwc_ep->frm_overrun = 1; + dwc_ep->frame_num &= 0x3FFF; + } else + dwc_ep->frm_overrun = 0; + } + + CLEAR_IN_EP_INTR(core_if, epnum, nak); + } + } + epnum++; + ep_intr >>= 1; + } + + return 1; +#undef CLEAR_IN_EP_INTR +} + +/** + * This interrupt indicates that an OUT EP has a pending Interrupt. + * The sequence for handling the OUT EP interrupt is shown below: + * -# Read the Device All Endpoint Interrupt register + * -# Repeat the following for each OUT EP interrupt bit set (from + * LSB to MSB). + * -# Read the Device Endpoint Interrupt (DOEPINTn) register + * -# If "Transfer Complete" call the request complete function + * -# If "Endpoint Disabled" complete the EP disable procedure. + * -# If "AHB Error Interrupt" log error + * -# If "Setup Phase Done" process Setup Packet (See Standard USB + * Command Processing) + */ +static int32_t dwc_otg_pcd_handle_out_ep_intr(dwc_otg_pcd_t * pcd) +{ +#define CLEAR_OUT_EP_INTR(__core_if,__epnum,__intr) \ +do { \ + doepint_data_t doepint = {.d32=0}; \ + doepint.b.__intr = 1; \ + DWC_WRITE_REG32(&__core_if->dev_if->out_ep_regs[__epnum]->doepint, \ + doepint.d32); \ +} while (0) + + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + uint32_t ep_intr; + doepint_data_t doepint = {.d32 = 0 }; + uint32_t epnum = 0; + dwc_otg_pcd_ep_t *ep; + dwc_ep_t *dwc_ep; + dctl_data_t dctl = {.d32 = 0 }; + gintmsk_data_t gintmsk = {.d32 = 0 }; + + + DWC_DEBUGPL(DBG_PCDV, "%s()\n", __func__); + + /* Read in the device interrupt bits */ + ep_intr = dwc_otg_read_dev_all_out_ep_intr(core_if); + + while (ep_intr) { + if (ep_intr & 0x1) { + /* Get EP pointer */ + ep = get_out_ep(pcd, epnum); + dwc_ep = &ep->dwc_ep; + +#ifdef VERBOSE + DWC_DEBUGPL(DBG_PCDV, + "EP%d-%s: type=%d, mps=%d\n", + dwc_ep->num, (dwc_ep->is_in ? "IN" : "OUT"), + dwc_ep->type, dwc_ep->maxpacket); +#endif + doepint.d32 = + dwc_otg_read_dev_out_ep_intr(core_if, dwc_ep); + /* Moved this interrupt upper due to core deffect of asserting + * OUT EP 0 xfercompl along with stsphsrcvd in BDMA */ + if (doepint.b.stsphsercvd) { + deptsiz0_data_t deptsiz; + CLEAR_OUT_EP_INTR(core_if, epnum, stsphsercvd); + deptsiz.d32 = + DWC_READ_REG32(&core_if->dev_if-> + out_ep_regs[0]->doeptsiz); + if (core_if->snpsid >= OTG_CORE_REV_3_00a + && core_if->dma_enable + && core_if->dma_desc_enable == 0 + && doepint.b.xfercompl + && deptsiz.b.xfersize == 24) { + CLEAR_OUT_EP_INTR(core_if, epnum, + xfercompl); + doepint.b.xfercompl = 0; + ep0_out_start(core_if, pcd); + } + if ((core_if->dma_desc_enable) || + (core_if->dma_enable + && core_if->snpsid >= + OTG_CORE_REV_3_00a)) { + do_setup_in_status_phase(pcd); + } + } + /* Transfer complete */ + if (doepint.b.xfercompl) { + + if (epnum == 0) { + /* Clear the bit in DOEPINTn for this interrupt */ + CLEAR_OUT_EP_INTR(core_if, epnum, xfercompl); + if (core_if->snpsid >= OTG_CORE_REV_3_00a) { + DWC_DEBUGPL(DBG_PCDV, "DOEPINT=%x doepint=%x\n", + DWC_READ_REG32(&core_if->dev_if->out_ep_regs[0]->doepint), + doepint.d32); + DWC_DEBUGPL(DBG_PCDV, "DOEPCTL=%x \n", + DWC_READ_REG32(&core_if->dev_if->out_ep_regs[0]->doepctl)); + + if (core_if->snpsid >= OTG_CORE_REV_3_00a + && core_if->dma_enable == 0) { + doepint_data_t doepint; + doepint.d32 = DWC_READ_REG32(&core_if->dev_if-> + out_ep_regs[0]->doepint); + if (pcd->ep0state == EP0_IDLE && doepint.b.sr) { + CLEAR_OUT_EP_INTR(core_if, epnum, sr); + goto exit_xfercompl; + } + } + /* In case of DDMA look at SR bit to go to the Data Stage */ + if (core_if->dma_desc_enable) { + dev_dma_desc_sts_t status = {.d32 = 0}; + if (pcd->ep0state == EP0_IDLE) { + status.d32 = core_if->dev_if->setup_desc_addr[core_if-> + dev_if->setup_desc_index]->status.d32; + if(pcd->data_terminated) { + pcd->data_terminated = 0; + status.d32 = core_if->dev_if->out_desc_addr->status.d32; + dwc_memcpy(&pcd->setup_pkt->req, pcd->backup_buf, 8); + } + if (status.b.sr) { + if (doepint.b.setup) { + DWC_DEBUGPL(DBG_PCDV, "DMA DESC EP0_IDLE SR=1 setup=1\n"); + /* Already started data stage, clear setup */ + CLEAR_OUT_EP_INTR(core_if, epnum, setup); + doepint.b.setup = 0; + handle_ep0(pcd); + /* Prepare for more setup packets */ + if (pcd->ep0state == EP0_IN_STATUS_PHASE || + pcd->ep0state == EP0_IN_DATA_PHASE) { + ep0_out_start(core_if, pcd); + } + + goto exit_xfercompl; + } else { + /* Prepare for more setup packets */ + DWC_DEBUGPL(DBG_PCDV, + "EP0_IDLE SR=1 setup=0 new setup comes\n"); + ep0_out_start(core_if, pcd); + } + } + } else { + dwc_otg_pcd_request_t *req; + dev_dma_desc_sts_t status = {.d32 = 0}; + diepint_data_t diepint0; + diepint0.d32 = DWC_READ_REG32(&core_if->dev_if-> + in_ep_regs[0]->diepint); + + if (pcd->ep0state == EP0_STALL || pcd->ep0state == EP0_DISCONNECT) { + DWC_ERROR("EP0 is stalled/disconnected\n"); + } + + /* Clear IN xfercompl if set */ + if (diepint0.b.xfercompl && (pcd->ep0state == EP0_IN_STATUS_PHASE + || pcd->ep0state == EP0_IN_DATA_PHASE)) { + DWC_WRITE_REG32(&core_if->dev_if-> + in_ep_regs[0]->diepint, diepint0.d32); + } + + status.d32 = core_if->dev_if->setup_desc_addr[core_if-> + dev_if->setup_desc_index]->status.d32; + + if (ep->dwc_ep.xfer_count != ep->dwc_ep.total_len + && (pcd->ep0state == EP0_OUT_DATA_PHASE)) + status.d32 = core_if->dev_if->out_desc_addr->status.d32; + if (pcd->ep0state == EP0_OUT_STATUS_PHASE) + status.d32 = core_if->dev_if-> + out_desc_addr->status.d32; + + if (status.b.sr) { + if (DWC_CIRCLEQ_EMPTY(&ep->queue)) { + DWC_DEBUGPL(DBG_PCDV, "Request queue empty!!\n"); + } else { + DWC_DEBUGPL(DBG_PCDV, "complete req!!\n"); + req = DWC_CIRCLEQ_FIRST(&ep->queue); + if (ep->dwc_ep.xfer_count != ep->dwc_ep.total_len && + pcd->ep0state == EP0_OUT_DATA_PHASE) { + /* Read arrived setup packet from req->buf */ + dwc_memcpy(&pcd->setup_pkt->req, + req->buf + ep->dwc_ep.xfer_count, 8); + } + req->actual = ep->dwc_ep.xfer_count; + dwc_otg_request_done(ep, req, -ECONNRESET); + ep->dwc_ep.start_xfer_buff = 0; + ep->dwc_ep.xfer_buff = 0; + ep->dwc_ep.xfer_len = 0; + } + pcd->ep0state = EP0_IDLE; + if (doepint.b.setup) { + DWC_DEBUGPL(DBG_PCDV, "EP0_IDLE SR=1 setup=1\n"); + /* Data stage started, clear setup */ + CLEAR_OUT_EP_INTR(core_if, epnum, setup); + doepint.b.setup = 0; + handle_ep0(pcd); + /* Prepare for setup packets if ep0in was enabled*/ + if (pcd->ep0state == EP0_IN_STATUS_PHASE) { + ep0_out_start(core_if, pcd); + } + + goto exit_xfercompl; + } else { + /* Prepare for more setup packets */ + DWC_DEBUGPL(DBG_PCDV, + "EP0_IDLE SR=1 setup=0 new setup comes 2\n"); + ep0_out_start(core_if, pcd); + } + } + } + } + if (core_if->snpsid >= OTG_CORE_REV_2_94a && core_if->dma_enable + && core_if->dma_desc_enable == 0) { + doepint_data_t doepint_temp = {.d32 = 0}; + deptsiz0_data_t doeptsize0 = {.d32 = 0 }; + doepint_temp.d32 = DWC_READ_REG32(&core_if->dev_if-> + out_ep_regs[ep->dwc_ep.num]->doepint); + doeptsize0.d32 = DWC_READ_REG32(&core_if->dev_if-> + out_ep_regs[ep->dwc_ep.num]->doeptsiz); + if (pcd->ep0state == EP0_IDLE) { + if (doepint_temp.b.sr) { + CLEAR_OUT_EP_INTR(core_if, epnum, sr); + } + doepint.d32 = DWC_READ_REG32(&core_if->dev_if-> + out_ep_regs[0]->doepint); + if (doeptsize0.b.supcnt == 3) { + DWC_DEBUGPL(DBG_ANY, "Rolling over!!!!!!!\n"); + ep->dwc_ep.stp_rollover = 1; + } + if (doepint.b.setup) { +retry: + /* Already started data stage, clear setup */ + CLEAR_OUT_EP_INTR(core_if, epnum, setup); + doepint.b.setup = 0; + handle_ep0(pcd); + ep->dwc_ep.stp_rollover = 0; + /* Prepare for more setup packets */ + if (pcd->ep0state == EP0_IN_STATUS_PHASE || + pcd->ep0state == EP0_IN_DATA_PHASE) { + ep0_out_start(core_if, pcd); + } + goto exit_xfercompl; + } else { + /* Prepare for more setup packets */ + DWC_DEBUGPL(DBG_ANY, + "EP0_IDLE SR=1 setup=0 new setup comes\n"); + doepint.d32 = DWC_READ_REG32(&core_if->dev_if-> + out_ep_regs[0]->doepint); + if(doepint.b.setup) + goto retry; + ep0_out_start(core_if, pcd); + } + } else { + dwc_otg_pcd_request_t *req; + diepint_data_t diepint0 = {.d32 = 0}; + doepint_data_t doepint_temp = {.d32 = 0}; + depctl_data_t diepctl0; + diepint0.d32 = DWC_READ_REG32(&core_if->dev_if-> + in_ep_regs[0]->diepint); + diepctl0.d32 = DWC_READ_REG32(&core_if->dev_if-> + in_ep_regs[0]->diepctl); + + if (pcd->ep0state == EP0_IN_DATA_PHASE + || pcd->ep0state == EP0_IN_STATUS_PHASE) { + if (diepint0.b.xfercompl) { + DWC_WRITE_REG32(&core_if->dev_if-> + in_ep_regs[0]->diepint, diepint0.d32); + } + if (diepctl0.b.epena) { + diepint_data_t diepint = {.d32 = 0}; + diepctl0.b.snak = 1; + DWC_WRITE_REG32(&core_if->dev_if-> + in_ep_regs[0]->diepctl, diepctl0.d32); + do { + dwc_udelay(10); + diepint.d32 = DWC_READ_REG32(&core_if->dev_if-> + in_ep_regs[0]->diepint); + } while (!diepint.b.inepnakeff); + diepint.b.inepnakeff = 1; + DWC_WRITE_REG32(&core_if->dev_if-> + in_ep_regs[0]->diepint, diepint.d32); + diepctl0.d32 = 0; + diepctl0.b.epdis = 1; + DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[0]->diepctl, + diepctl0.d32); + do { + dwc_udelay(10); + diepint.d32 = DWC_READ_REG32(&core_if->dev_if-> + in_ep_regs[0]->diepint); + } while (!diepint.b.epdisabled); + diepint.b.epdisabled = 1; + DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[0]->diepint, + diepint.d32); + } + } + doepint_temp.d32 = DWC_READ_REG32(&core_if->dev_if-> + out_ep_regs[ep->dwc_ep.num]->doepint); + if (doepint_temp.b.sr) { + CLEAR_OUT_EP_INTR(core_if, epnum, sr); + if (DWC_CIRCLEQ_EMPTY(&ep->queue)) { + DWC_DEBUGPL(DBG_PCDV, "Request queue empty!!\n"); + } else { + DWC_DEBUGPL(DBG_PCDV, "complete req!!\n"); + req = DWC_CIRCLEQ_FIRST(&ep->queue); + if (ep->dwc_ep.xfer_count != ep->dwc_ep.total_len && + pcd->ep0state == EP0_OUT_DATA_PHASE) { + /* Read arrived setup packet from req->buf */ + dwc_memcpy(&pcd->setup_pkt->req, + req->buf + ep->dwc_ep.xfer_count, 8); + } + req->actual = ep->dwc_ep.xfer_count; + dwc_otg_request_done(ep, req, -ECONNRESET); + ep->dwc_ep.start_xfer_buff = 0; + ep->dwc_ep.xfer_buff = 0; + ep->dwc_ep.xfer_len = 0; + } + pcd->ep0state = EP0_IDLE; + if (doepint.b.setup) { + DWC_DEBUGPL(DBG_PCDV, "EP0_IDLE SR=1 setup=1\n"); + /* Data stage started, clear setup */ + CLEAR_OUT_EP_INTR(core_if, epnum, setup); + doepint.b.setup = 0; + handle_ep0(pcd); + /* Prepare for setup packets if ep0in was enabled*/ + if (pcd->ep0state == EP0_IN_STATUS_PHASE) { + ep0_out_start(core_if, pcd); + } + goto exit_xfercompl; + } else { + /* Prepare for more setup packets */ + DWC_DEBUGPL(DBG_PCDV, + "EP0_IDLE SR=1 setup=0 new setup comes 2\n"); + ep0_out_start(core_if, pcd); + } + } + } + } + if (core_if->dma_enable == 0 || pcd->ep0state != EP0_IDLE) + handle_ep0(pcd); +exit_xfercompl: + DWC_DEBUGPL(DBG_PCDV, "DOEPINT=%x doepint=%x\n", + dwc_otg_read_dev_out_ep_intr(core_if, dwc_ep), doepint.d32); + } else { + if (core_if->dma_desc_enable == 0 + || pcd->ep0state != EP0_IDLE) + handle_ep0(pcd); + } +#ifdef DWC_EN_ISOC + } else if (dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) { + if (doepint.b.pktdrpsts == 0) { + /* Clear the bit in DOEPINTn for this interrupt */ + CLEAR_OUT_EP_INTR(core_if, + epnum, + xfercompl); + complete_iso_ep(pcd, ep); + } else { + + doepint_data_t doepint = {.d32 = 0 }; + doepint.b.xfercompl = 1; + doepint.b.pktdrpsts = 1; + DWC_WRITE_REG32 + (&core_if->dev_if->out_ep_regs + [epnum]->doepint, + doepint.d32); + if (handle_iso_out_pkt_dropped + (core_if, dwc_ep)) { + complete_iso_ep(pcd, + ep); + } + } +#endif /* DWC_EN_ISOC */ +#ifdef DWC_UTE_PER_IO + } else if (dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) { + CLEAR_OUT_EP_INTR(core_if, epnum, xfercompl); + if (!ep->stopped) + complete_xiso_ep(ep); +#endif /* DWC_UTE_PER_IO */ + } else { + /* Clear the bit in DOEPINTn for this interrupt */ + CLEAR_OUT_EP_INTR(core_if, epnum, + xfercompl); + + if (core_if->core_params->dev_out_nak) { + DWC_TIMER_CANCEL(pcd->core_if->ep_xfer_timer[epnum]); + pcd->core_if->ep_xfer_info[epnum].state = 0; +#ifdef DEBUG + print_memory_payload(pcd, dwc_ep); +#endif + } + complete_ep(ep); + } + + } + + /* Endpoint disable */ + if (doepint.b.epdisabled) { + + /* Clear the bit in DOEPINTn for this interrupt */ + CLEAR_OUT_EP_INTR(core_if, epnum, epdisabled); + if (core_if->core_params->dev_out_nak) { +#ifdef DEBUG + print_memory_payload(pcd, dwc_ep); +#endif + /* In case of timeout condition */ + if (core_if->ep_xfer_info[epnum].state == 2) { + dctl.d32 = DWC_READ_REG32(&core_if->dev_if-> + dev_global_regs->dctl); + dctl.b.cgoutnak = 1; + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dctl, + dctl.d32); + /* Unmask goutnakeff interrupt which was masked + * during handle nak out interrupt */ + gintmsk.b.goutnakeff = 1; + DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk, + 0, gintmsk.d32); + + complete_ep(ep); + } + } + if (ep->dwc_ep.type == DWC_OTG_EP_TYPE_ISOC) + { + dctl_data_t dctl; + gintmsk_data_t intr_mask = {.d32 = 0}; + dwc_otg_pcd_request_t *req = 0; + + dctl.d32 = DWC_READ_REG32(&core_if->dev_if-> + dev_global_regs->dctl); + dctl.b.cgoutnak = 1; + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dctl, + dctl.d32); + + intr_mask.d32 = 0; + intr_mask.b.incomplisoout = 1; + + /* Get any pending requests */ + if (!DWC_CIRCLEQ_EMPTY(&ep->queue)) { + req = DWC_CIRCLEQ_FIRST(&ep->queue); + if (!req) { + DWC_PRINTF("complete_ep 0x%p, req = NULL!\n", ep); + } else { + dwc_otg_request_done(ep, req, 0); + start_next_request(ep); + } + } else { + DWC_PRINTF("complete_ep 0x%p, ep->queue empty!\n", ep); + } + } + } + /* AHB Error */ + if (doepint.b.ahberr) { + DWC_ERROR("EP%d OUT AHB Error\n", epnum); + DWC_ERROR("EP%d DEPDMA=0x%08x \n", + epnum, core_if->dev_if->out_ep_regs[epnum]->doepdma); + CLEAR_OUT_EP_INTR(core_if, epnum, ahberr); + } + /* Setup Phase Done (contorl EPs) */ + if (doepint.b.setup) { +#ifdef DEBUG_EP0 + DWC_DEBUGPL(DBG_PCD, "EP%d SETUP Done\n", epnum); +#endif + CLEAR_OUT_EP_INTR(core_if, epnum, setup); + + handle_ep0(pcd); + } + + /** OUT EP BNA Intr */ + if (doepint.b.bna) { + CLEAR_OUT_EP_INTR(core_if, epnum, bna); + if (core_if->dma_desc_enable) { +#ifdef DWC_EN_ISOC + if (dwc_ep->type == + DWC_OTG_EP_TYPE_ISOC) { + /* + * This checking is performed to prevent first "false" BNA + * handling occuring right after reconnect + */ + if (dwc_ep->next_frame != + 0xffffffff) + dwc_otg_pcd_handle_iso_bna(ep); + } else +#endif /* DWC_EN_ISOC */ + { + dwc_otg_pcd_handle_noniso_bna(ep); + } + } + } + /* Babble Interrupt */ + if (doepint.b.babble) { + DWC_DEBUGPL(DBG_ANY, "EP%d OUT Babble\n", + epnum); + handle_out_ep_babble_intr(pcd, epnum); + + CLEAR_OUT_EP_INTR(core_if, epnum, babble); + } + if (doepint.b.outtknepdis) { + DWC_DEBUGPL(DBG_ANY, "EP%d OUT Token received when EP is \ + disabled\n",epnum); + if (ep->dwc_ep.type == DWC_OTG_EP_TYPE_ISOC) { + doepmsk_data_t doepmsk = {.d32 = 0}; + ep->dwc_ep.frame_num = core_if->frame_num; + if (ep->dwc_ep.bInterval > 1) { + depctl_data_t depctl; + depctl.d32 = DWC_READ_REG32(&core_if->dev_if-> + out_ep_regs[epnum]->doepctl); + if (ep->dwc_ep.frame_num & 0x1) { + depctl.b.setd1pid = 1; + depctl.b.setd0pid = 0; + } else { + depctl.b.setd0pid = 1; + depctl.b.setd1pid = 0; + } + DWC_WRITE_REG32(&core_if->dev_if-> + out_ep_regs[epnum]->doepctl, depctl.d32); + } + start_next_request(ep); + doepmsk.b.outtknepdis = 1; + DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->doepmsk, + doepmsk.d32, 0); + } + CLEAR_OUT_EP_INTR(core_if, epnum, outtknepdis); + } + + /* NAK Interrutp */ + if (doepint.b.nak) { + DWC_DEBUGPL(DBG_ANY, "EP%d OUT NAK\n", epnum); + handle_out_ep_nak_intr(pcd, epnum); + + CLEAR_OUT_EP_INTR(core_if, epnum, nak); + } + /* NYET Interrutp */ + if (doepint.b.nyet) { + DWC_DEBUGPL(DBG_ANY, "EP%d OUT NYET\n", epnum); + handle_out_ep_nyet_intr(pcd, epnum); + + CLEAR_OUT_EP_INTR(core_if, epnum, nyet); + } + } + + epnum++; + ep_intr >>= 1; + } + + return 1; + +#undef CLEAR_OUT_EP_INTR +} +static int drop_transfer(uint32_t trgt_fr, uint32_t curr_fr, uint8_t frm_overrun) +{ + int retval = 0; + if(!frm_overrun && curr_fr >= trgt_fr) + retval = 1; + else if (frm_overrun + && (curr_fr >= trgt_fr && ((curr_fr - trgt_fr) < 0x3FFF / 2))) + retval = 1; + return retval; +} +/** + * Incomplete ISO IN Transfer Interrupt. + * This interrupt indicates one of the following conditions occurred + * while transmitting an ISOC transaction. + * - Corrupted IN Token for ISOC EP. + * - Packet not complete in FIFO. + * The follow actions will be taken: + * -# Determine the EP + * -# Set incomplete flag in dwc_ep structure + * -# Disable EP; when "Endpoint Disabled" interrupt is received + * Flush FIFO + */ +int32_t dwc_otg_pcd_handle_incomplete_isoc_in_intr(dwc_otg_pcd_t * pcd) +{ + gintsts_data_t gintsts; + +#ifdef DWC_EN_ISOC + dwc_otg_dev_if_t *dev_if; + deptsiz_data_t deptsiz = {.d32 = 0 }; + depctl_data_t depctl = {.d32 = 0 }; + dsts_data_t dsts = {.d32 = 0 }; + dwc_ep_t *dwc_ep; + int i; + + dev_if = GET_CORE_IF(pcd)->dev_if; + + for (i = 1; i <= dev_if->num_in_eps; ++i) { + dwc_ep = &pcd->in_ep[i].dwc_ep; + if (dwc_ep->active && dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) { + deptsiz.d32 = + DWC_READ_REG32(&dev_if->in_ep_regs[i]->dieptsiz); + depctl.d32 = + DWC_READ_REG32(&dev_if->in_ep_regs[i]->diepctl); + + if (depctl.b.epdis && deptsiz.d32) { + set_current_pkt_info(GET_CORE_IF(pcd), dwc_ep); + if (dwc_ep->cur_pkt >= dwc_ep->pkt_cnt) { + dwc_ep->cur_pkt = 0; + dwc_ep->proc_buf_num = + (dwc_ep->proc_buf_num ^ 1) & 0x1; + + if (dwc_ep->proc_buf_num) { + dwc_ep->cur_pkt_addr = + dwc_ep->xfer_buff1; + dwc_ep->cur_pkt_dma_addr = + dwc_ep->dma_addr1; + } else { + dwc_ep->cur_pkt_addr = + dwc_ep->xfer_buff0; + dwc_ep->cur_pkt_dma_addr = + dwc_ep->dma_addr0; + } + + } + + dsts.d32 = + DWC_READ_REG32(&GET_CORE_IF(pcd)->dev_if-> + dev_global_regs->dsts); + dwc_ep->next_frame = dsts.b.soffn; + + dwc_otg_iso_ep_start_frm_transfer(GET_CORE_IF + (pcd), + dwc_ep); + } + } + } + +#else + depctl_data_t depctl = {.d32 = 0 }; + dwc_ep_t *dwc_ep; + dwc_otg_dev_if_t *dev_if; + int i; + dev_if = GET_CORE_IF(pcd)->dev_if; + + DWC_DEBUGPL(DBG_PCD,"Incomplete ISO IN \n"); + + for (i = 1; i <= dev_if->num_in_eps; ++i) { + dwc_ep = &pcd->in_ep[i-1].dwc_ep; + depctl.d32 = + DWC_READ_REG32(&dev_if->in_ep_regs[i]->diepctl); + if (depctl.b.epena && dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) { + if (drop_transfer(dwc_ep->frame_num, GET_CORE_IF(pcd)->frame_num, + dwc_ep->frm_overrun)) + { + depctl.d32 = + DWC_READ_REG32(&dev_if->in_ep_regs[i]->diepctl); + depctl.b.snak = 1; + depctl.b.epdis = 1; + DWC_MODIFY_REG32(&dev_if->in_ep_regs[i]->diepctl, depctl.d32, depctl.d32); + } + } + } + + /*intr_mask.b.incomplisoin = 1; + DWC_MODIFY_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, + intr_mask.d32, 0); */ +#endif //DWC_EN_ISOC + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.incomplisoin = 1; + DWC_WRITE_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintsts, + gintsts.d32); + + return 1; +} + +/** + * Incomplete ISO OUT Transfer Interrupt. + * + * This interrupt indicates that the core has dropped an ISO OUT + * packet. The following conditions can be the cause: + * - FIFO Full, the entire packet would not fit in the FIFO. + * - CRC Error + * - Corrupted Token + * The follow actions will be taken: + * -# Determine the EP + * -# Set incomplete flag in dwc_ep structure + * -# Read any data from the FIFO + * -# Disable EP. When "Endpoint Disabled" interrupt is received + * re-enable EP. + */ +int32_t dwc_otg_pcd_handle_incomplete_isoc_out_intr(dwc_otg_pcd_t * pcd) +{ + + gintsts_data_t gintsts; + +#ifdef DWC_EN_ISOC + dwc_otg_dev_if_t *dev_if; + deptsiz_data_t deptsiz = {.d32 = 0 }; + depctl_data_t depctl = {.d32 = 0 }; + dsts_data_t dsts = {.d32 = 0 }; + dwc_ep_t *dwc_ep; + int i; + + dev_if = GET_CORE_IF(pcd)->dev_if; + + for (i = 1; i <= dev_if->num_out_eps; ++i) { + dwc_ep = &pcd->in_ep[i].dwc_ep; + if (pcd->out_ep[i].dwc_ep.active && + pcd->out_ep[i].dwc_ep.type == DWC_OTG_EP_TYPE_ISOC) { + deptsiz.d32 = + DWC_READ_REG32(&dev_if->out_ep_regs[i]->doeptsiz); + depctl.d32 = + DWC_READ_REG32(&dev_if->out_ep_regs[i]->doepctl); + + if (depctl.b.epdis && deptsiz.d32) { + set_current_pkt_info(GET_CORE_IF(pcd), + &pcd->out_ep[i].dwc_ep); + if (dwc_ep->cur_pkt >= dwc_ep->pkt_cnt) { + dwc_ep->cur_pkt = 0; + dwc_ep->proc_buf_num = + (dwc_ep->proc_buf_num ^ 1) & 0x1; + + if (dwc_ep->proc_buf_num) { + dwc_ep->cur_pkt_addr = + dwc_ep->xfer_buff1; + dwc_ep->cur_pkt_dma_addr = + dwc_ep->dma_addr1; + } else { + dwc_ep->cur_pkt_addr = + dwc_ep->xfer_buff0; + dwc_ep->cur_pkt_dma_addr = + dwc_ep->dma_addr0; + } + + } + + dsts.d32 = + DWC_READ_REG32(&GET_CORE_IF(pcd)->dev_if-> + dev_global_regs->dsts); + dwc_ep->next_frame = dsts.b.soffn; + + dwc_otg_iso_ep_start_frm_transfer(GET_CORE_IF + (pcd), + dwc_ep); + } + } + } +#else + /** @todo implement ISR */ + gintmsk_data_t intr_mask = {.d32 = 0 }; + dwc_otg_core_if_t *core_if; + deptsiz_data_t deptsiz = {.d32 = 0 }; + depctl_data_t depctl = {.d32 = 0 }; + dctl_data_t dctl = {.d32 = 0 }; + dwc_ep_t *dwc_ep = NULL; + int i; + core_if = GET_CORE_IF(pcd); + + for (i = 0; i < core_if->dev_if->num_out_eps; ++i) { + dwc_ep = &pcd->out_ep[i].dwc_ep; + depctl.d32 = + DWC_READ_REG32(&core_if->dev_if->out_ep_regs[dwc_ep->num]->doepctl); + if (depctl.b.epena && depctl.b.dpid == (core_if->frame_num & 0x1)) { + core_if->dev_if->isoc_ep = dwc_ep; + deptsiz.d32 = + DWC_READ_REG32(&core_if->dev_if->out_ep_regs[dwc_ep->num]->doeptsiz); + break; + } + } + dctl.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dctl); + gintsts.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintsts); + intr_mask.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintmsk); + + if (!intr_mask.b.goutnakeff) { + /* Unmask it */ + intr_mask.b.goutnakeff = 1; + DWC_WRITE_REG32(&core_if->core_global_regs->gintmsk, intr_mask.d32); + } + if (!gintsts.b.goutnakeff) { + dctl.b.sgoutnak = 1; + } + DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32); + + depctl.d32 = DWC_READ_REG32(&core_if->dev_if->out_ep_regs[dwc_ep->num]->doepctl); + if (depctl.b.epena) { + depctl.b.epdis = 1; + depctl.b.snak = 1; + } + DWC_WRITE_REG32(&core_if->dev_if->out_ep_regs[dwc_ep->num]->doepctl, depctl.d32); + + intr_mask.d32 = 0; + intr_mask.b.incomplisoout = 1; + +#endif /* DWC_EN_ISOC */ + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.incomplisoout = 1; + DWC_WRITE_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintsts, + gintsts.d32); + + return 1; +} + +/** + * This function handles the Global IN NAK Effective interrupt. + * + */ +int32_t dwc_otg_pcd_handle_in_nak_effective(dwc_otg_pcd_t * pcd) +{ + dwc_otg_dev_if_t *dev_if = GET_CORE_IF(pcd)->dev_if; + depctl_data_t diepctl = {.d32 = 0 }; + gintmsk_data_t intr_mask = {.d32 = 0 }; + gintsts_data_t gintsts; + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); + int i; + + DWC_DEBUGPL(DBG_PCD, "Global IN NAK Effective\n"); + + /* Disable all active IN EPs */ + for (i = 0; i <= dev_if->num_in_eps; i++) { + diepctl.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[i]->diepctl); + if (!(diepctl.b.eptype & 1) && diepctl.b.epena) { + if (core_if->start_predict > 0) + core_if->start_predict++; + diepctl.b.epdis = 1; + diepctl.b.snak = 1; + DWC_WRITE_REG32(&dev_if->in_ep_regs[i]->diepctl, diepctl.d32); + } + } + + + /* Disable the Global IN NAK Effective Interrupt */ + intr_mask.b.ginnakeff = 1; + DWC_MODIFY_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, + intr_mask.d32, 0); + + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.ginnakeff = 1; + DWC_WRITE_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintsts, + gintsts.d32); + + return 1; +} + +/** + * OUT NAK Effective. + * + */ +int32_t dwc_otg_pcd_handle_out_nak_effective(dwc_otg_pcd_t * pcd) +{ + dwc_otg_dev_if_t *dev_if = GET_CORE_IF(pcd)->dev_if; + gintmsk_data_t intr_mask = {.d32 = 0 }; + gintsts_data_t gintsts; + depctl_data_t doepctl; + int i; + + /* Disable the Global OUT NAK Effective Interrupt */ + intr_mask.b.goutnakeff = 1; + DWC_MODIFY_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk, + intr_mask.d32, 0); + + /* If DEV OUT NAK enabled*/ + if (pcd->core_if->core_params->dev_out_nak) { + /* Run over all out endpoints to determine the ep number on + * which the timeout has happened + */ + for (i = 0; i <= dev_if->num_out_eps; i++) { + if ( pcd->core_if->ep_xfer_info[i].state == 2 ) + break; + } + if (i > dev_if->num_out_eps) { + dctl_data_t dctl; + dctl.d32 = + DWC_READ_REG32(&dev_if->dev_global_regs->dctl); + dctl.b.cgoutnak = 1; + DWC_WRITE_REG32(&dev_if->dev_global_regs->dctl, + dctl.d32); + goto out; + } + + /* Disable the endpoint */ + doepctl.d32 = DWC_READ_REG32(&dev_if->out_ep_regs[i]->doepctl); + if (doepctl.b.epena) { + doepctl.b.epdis = 1; + doepctl.b.snak = 1; + } + DWC_WRITE_REG32(&dev_if->out_ep_regs[i]->doepctl, doepctl.d32); + return 1; + } + /* We come here from Incomplete ISO OUT handler */ + if (dev_if->isoc_ep) { + dwc_ep_t *dwc_ep = (dwc_ep_t *)dev_if->isoc_ep; + uint32_t epnum = dwc_ep->num; + doepint_data_t doepint; + doepint.d32 = + DWC_READ_REG32(&dev_if->out_ep_regs[dwc_ep->num]->doepint); + dev_if->isoc_ep = NULL; + doepctl.d32 = + DWC_READ_REG32(&dev_if->out_ep_regs[epnum]->doepctl); + DWC_PRINTF("Before disable DOEPCTL = %08x\n", doepctl.d32); + if (doepctl.b.epena) { + doepctl.b.epdis = 1; + doepctl.b.snak = 1; + } + DWC_WRITE_REG32(&dev_if->out_ep_regs[epnum]->doepctl, + doepctl.d32); + return 1; + } else + DWC_PRINTF("INTERRUPT Handler not implemented for %s\n", + "Global OUT NAK Effective\n"); + +out: + /* Clear interrupt */ + gintsts.d32 = 0; + gintsts.b.goutnakeff = 1; + DWC_WRITE_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintsts, + gintsts.d32); + + return 1; +} + +/** + * PCD interrupt handler. + * + * The PCD handles the device interrupts. Many conditions can cause a + * device interrupt. When an interrupt occurs, the device interrupt + * service routine determines the cause of the interrupt and + * dispatches handling to the appropriate function. These interrupt + * handling functions are described below. + * + * All interrupt registers are processed from LSB to MSB. + * + */ +int32_t dwc_otg_pcd_handle_intr(dwc_otg_pcd_t * pcd) +{ + dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd); +#ifdef VERBOSE + dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs; +#endif + gintsts_data_t gintr_status; + int32_t retval = 0; + + /* Exit from ISR if core is hibernated */ + if (core_if->hibernation_suspend == 1) { + return retval; + } +#ifdef VERBOSE + DWC_DEBUGPL(DBG_ANY, "%s() gintsts=%08x gintmsk=%08x\n", + __func__, + DWC_READ_REG32(&global_regs->gintsts), + DWC_READ_REG32(&global_regs->gintmsk)); +#endif + + if (dwc_otg_is_device_mode(core_if)) { + DWC_SPINLOCK(pcd->lock); +#ifdef VERBOSE + DWC_DEBUGPL(DBG_PCDV, "%s() gintsts=%08x gintmsk=%08x\n", + __func__, + DWC_READ_REG32(&global_regs->gintsts), + DWC_READ_REG32(&global_regs->gintmsk)); +#endif + + gintr_status.d32 = dwc_otg_read_core_intr(core_if); + + DWC_DEBUGPL(DBG_PCDV, "%s: gintsts&gintmsk=%08x\n", + __func__, gintr_status.d32); + + if (gintr_status.b.sofintr) { + retval |= dwc_otg_pcd_handle_sof_intr(pcd); + } + if (gintr_status.b.rxstsqlvl) { + retval |= + dwc_otg_pcd_handle_rx_status_q_level_intr(pcd); + } + if (gintr_status.b.nptxfempty) { + retval |= dwc_otg_pcd_handle_np_tx_fifo_empty_intr(pcd); + } + if (gintr_status.b.goutnakeff) { + retval |= dwc_otg_pcd_handle_out_nak_effective(pcd); + } + if (gintr_status.b.i2cintr) { + retval |= dwc_otg_pcd_handle_i2c_intr(pcd); + } + if (gintr_status.b.erlysuspend) { + retval |= dwc_otg_pcd_handle_early_suspend_intr(pcd); + } + if (gintr_status.b.usbreset) { + retval |= dwc_otg_pcd_handle_usb_reset_intr(pcd); + } + if (gintr_status.b.enumdone) { + retval |= dwc_otg_pcd_handle_enum_done_intr(pcd); + } + if (gintr_status.b.isooutdrop) { + retval |= + dwc_otg_pcd_handle_isoc_out_packet_dropped_intr + (pcd); + } + if (gintr_status.b.eopframe) { + retval |= + dwc_otg_pcd_handle_end_periodic_frame_intr(pcd); + } + if (gintr_status.b.inepint) { + if (!core_if->multiproc_int_enable) { + retval |= dwc_otg_pcd_handle_in_ep_intr(pcd); + } + } + if (gintr_status.b.outepintr) { + if (!core_if->multiproc_int_enable) { + retval |= dwc_otg_pcd_handle_out_ep_intr(pcd); + } + } + if (gintr_status.b.epmismatch) { + retval |= dwc_otg_pcd_handle_ep_mismatch_intr(pcd); + } + if (gintr_status.b.fetsusp) { + retval |= dwc_otg_pcd_handle_ep_fetsusp_intr(pcd); + } + if (gintr_status.b.ginnakeff) { + retval |= dwc_otg_pcd_handle_in_nak_effective(pcd); + } + if (gintr_status.b.incomplisoin) { + retval |= + dwc_otg_pcd_handle_incomplete_isoc_in_intr(pcd); + } + if (gintr_status.b.incomplisoout) { + retval |= + dwc_otg_pcd_handle_incomplete_isoc_out_intr(pcd); + } + + /* In MPI mode Device Endpoints interrupts are asserted + * without setting outepintr and inepint bits set, so these + * Interrupt handlers are called without checking these bit-fields + */ + if (core_if->multiproc_int_enable) { + retval |= dwc_otg_pcd_handle_in_ep_intr(pcd); + retval |= dwc_otg_pcd_handle_out_ep_intr(pcd); + } +#ifdef VERBOSE + DWC_DEBUGPL(DBG_PCDV, "%s() gintsts=%0x\n", __func__, + DWC_READ_REG32(&global_regs->gintsts)); +#endif + DWC_SPINUNLOCK(pcd->lock); + } + return retval; +} + +#endif /* DWC_HOST_ONLY */ diff --git a/drivers/usb/host/dwc_otg/dwc_otg_pcd_linux.c b/drivers/usb/host/dwc_otg/dwc_otg_pcd_linux.c new file mode 100644 index 0000000000000000000000000000000000000000..e799f15f294706ad7ac328dcb9ce68fbd0e71d38 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_pcd_linux.c @@ -0,0 +1,1280 @@ + /* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_pcd_linux.c $ + * $Revision: #21 $ + * $Date: 2012/08/10 $ + * $Change: 2047372 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ +#ifndef DWC_HOST_ONLY + +/** @file + * This file implements the Peripheral Controller Driver. + * + * The Peripheral Controller Driver (PCD) is responsible for + * translating requests from the Function Driver into the appropriate + * actions on the DWC_otg controller. It isolates the Function Driver + * from the specifics of the controller by providing an API to the + * Function Driver. + * + * The Peripheral Controller Driver for Linux will implement the + * Gadget API, so that the existing Gadget drivers can be used. + * (Gadget Driver is the Linux terminology for a Function Driver.) + * + * The Linux Gadget API is defined in the header file + * . The USB EP operations API is + * defined in the structure usb_ep_ops and the USB + * Controller API is defined in the structure + * usb_gadget_ops. + * + */ + +#include "dwc_otg_os_dep.h" +#include "dwc_otg_pcd_if.h" +#include "dwc_otg_pcd.h" +#include "dwc_otg_driver.h" +#include "dwc_otg_dbg.h" + +extern bool fiq_enable; + +static struct gadget_wrapper { + dwc_otg_pcd_t *pcd; + + struct usb_gadget gadget; + struct usb_gadget_driver *driver; + + struct usb_ep ep0; + struct usb_ep in_ep[16]; + struct usb_ep out_ep[16]; + +} *gadget_wrapper; + +/* Display the contents of the buffer */ +extern void dump_msg(const u8 * buf, unsigned int length); +/** + * Get the dwc_otg_pcd_ep_t* from usb_ep* pointer - NULL in case + * if the endpoint is not found + */ +static struct dwc_otg_pcd_ep *ep_from_handle(dwc_otg_pcd_t * pcd, void *handle) +{ + int i; + if (pcd->ep0.priv == handle) { + return &pcd->ep0; + } + + for (i = 0; i < MAX_EPS_CHANNELS - 1; i++) { + if (pcd->in_ep[i].priv == handle) + return &pcd->in_ep[i]; + if (pcd->out_ep[i].priv == handle) + return &pcd->out_ep[i]; + } + + return NULL; +} + +/* USB Endpoint Operations */ +/* + * The following sections briefly describe the behavior of the Gadget + * API endpoint operations implemented in the DWC_otg driver + * software. Detailed descriptions of the generic behavior of each of + * these functions can be found in the Linux header file + * include/linux/usb_gadget.h. + * + * The Gadget API provides wrapper functions for each of the function + * pointers defined in usb_ep_ops. The Gadget Driver calls the wrapper + * function, which then calls the underlying PCD function. The + * following sections are named according to the wrapper + * functions. Within each section, the corresponding DWC_otg PCD + * function name is specified. + * + */ + +/** + * This function is called by the Gadget Driver for each EP to be + * configured for the current configuration (SET_CONFIGURATION). + * + * This function initializes the dwc_otg_ep_t data structure, and then + * calls dwc_otg_ep_activate. + */ +static int ep_enable(struct usb_ep *usb_ep, + const struct usb_endpoint_descriptor *ep_desc) +{ + int retval; + + DWC_DEBUGPL(DBG_PCDV, "%s(%p,%p)\n", __func__, usb_ep, ep_desc); + + if (!usb_ep || !ep_desc || ep_desc->bDescriptorType != USB_DT_ENDPOINT) { + DWC_WARN("%s, bad ep or descriptor\n", __func__); + return -EINVAL; + } + if (usb_ep == &gadget_wrapper->ep0) { + DWC_WARN("%s, bad ep(0)\n", __func__); + return -EINVAL; + } + + /* Check FIFO size? */ + if (!ep_desc->wMaxPacketSize) { + DWC_WARN("%s, bad %s maxpacket\n", __func__, usb_ep->name); + return -ERANGE; + } + + if (!gadget_wrapper->driver || + gadget_wrapper->gadget.speed == USB_SPEED_UNKNOWN) { + DWC_WARN("%s, bogus device state\n", __func__); + return -ESHUTDOWN; + } + + /* Delete after check - MAS */ +#if 0 + nat = (uint32_t) ep_desc->wMaxPacketSize; + printk(KERN_ALERT "%s: nat (before) =%d\n", __func__, nat); + nat = (nat >> 11) & 0x03; + printk(KERN_ALERT "%s: nat (after) =%d\n", __func__, nat); +#endif + retval = dwc_otg_pcd_ep_enable(gadget_wrapper->pcd, + (const uint8_t *)ep_desc, + (void *)usb_ep); + if (retval) { + DWC_WARN("dwc_otg_pcd_ep_enable failed\n"); + return -EINVAL; + } + + usb_ep->maxpacket = le16_to_cpu(ep_desc->wMaxPacketSize); + + return 0; +} + +/** + * This function is called when an EP is disabled due to disconnect or + * change in configuration. Any pending requests will terminate with a + * status of -ESHUTDOWN. + * + * This function modifies the dwc_otg_ep_t data structure for this EP, + * and then calls dwc_otg_ep_deactivate. + */ +static int ep_disable(struct usb_ep *usb_ep) +{ + int retval; + + DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, usb_ep); + if (!usb_ep) { + DWC_DEBUGPL(DBG_PCD, "%s, %s not enabled\n", __func__, + usb_ep ? usb_ep->name : NULL); + return -EINVAL; + } + + retval = dwc_otg_pcd_ep_disable(gadget_wrapper->pcd, usb_ep); + if (retval) { + retval = -EINVAL; + } + + return retval; +} + +/** + * This function allocates a request object to use with the specified + * endpoint. + * + * @param ep The endpoint to be used with with the request + * @param gfp_flags the GFP_* flags to use. + */ +static struct usb_request *dwc_otg_pcd_alloc_request(struct usb_ep *ep, + gfp_t gfp_flags) +{ + struct usb_request *usb_req; + + DWC_DEBUGPL(DBG_PCDV, "%s(%p,%d)\n", __func__, ep, gfp_flags); + if (0 == ep) { + DWC_WARN("%s() %s\n", __func__, "Invalid EP!\n"); + return 0; + } + usb_req = kzalloc(sizeof(*usb_req), gfp_flags); + if (0 == usb_req) { + DWC_WARN("%s() %s\n", __func__, "request allocation failed!\n"); + return 0; + } + usb_req->dma = DWC_DMA_ADDR_INVALID; + + return usb_req; +} + +/** + * This function frees a request object. + * + * @param ep The endpoint associated with the request + * @param req The request being freed + */ +static void dwc_otg_pcd_free_request(struct usb_ep *ep, struct usb_request *req) +{ + DWC_DEBUGPL(DBG_PCDV, "%s(%p,%p)\n", __func__, ep, req); + + if (0 == ep || 0 == req) { + DWC_WARN("%s() %s\n", __func__, + "Invalid ep or req argument!\n"); + return; + } + + kfree(req); +} + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28) +/** + * This function allocates an I/O buffer to be used for a transfer + * to/from the specified endpoint. + * + * @param usb_ep The endpoint to be used with with the request + * @param bytes The desired number of bytes for the buffer + * @param dma Pointer to the buffer's DMA address; must be valid + * @param gfp_flags the GFP_* flags to use. + * @return address of a new buffer or null is buffer could not be allocated. + */ +static void *dwc_otg_pcd_alloc_buffer(struct usb_ep *usb_ep, unsigned bytes, + dma_addr_t * dma, gfp_t gfp_flags) +{ + void *buf; + dwc_otg_pcd_t *pcd = 0; + + pcd = gadget_wrapper->pcd; + + DWC_DEBUGPL(DBG_PCDV, "%s(%p,%d,%p,%0x)\n", __func__, usb_ep, bytes, + dma, gfp_flags); + + /* Check dword alignment */ + if ((bytes & 0x3UL) != 0) { + DWC_WARN("%s() Buffer size is not a multiple of" + "DWORD size (%d)", __func__, bytes); + } + + buf = dma_alloc_coherent(NULL, bytes, dma, gfp_flags); + WARN_ON(!buf); + + /* Check dword alignment */ + if (((int)buf & 0x3UL) != 0) { + DWC_WARN("%s() Buffer is not DWORD aligned (%p)", + __func__, buf); + } + + return buf; +} + +/** + * This function frees an I/O buffer that was allocated by alloc_buffer. + * + * @param usb_ep the endpoint associated with the buffer + * @param buf address of the buffer + * @param dma The buffer's DMA address + * @param bytes The number of bytes of the buffer + */ +static void dwc_otg_pcd_free_buffer(struct usb_ep *usb_ep, void *buf, + dma_addr_t dma, unsigned bytes) +{ + dwc_otg_pcd_t *pcd = 0; + + pcd = gadget_wrapper->pcd; + + DWC_DEBUGPL(DBG_PCDV, "%s(%p,%0x,%d)\n", __func__, buf, dma, bytes); + + dma_free_coherent(NULL, bytes, buf, dma); +} +#endif + +/** + * This function is used to submit an I/O Request to an EP. + * + * - When the request completes the request's completion callback + * is called to return the request to the driver. + * - An EP, except control EPs, may have multiple requests + * pending. + * - Once submitted the request cannot be examined or modified. + * - Each request is turned into one or more packets. + * - A BULK EP can queue any amount of data; the transfer is + * packetized. + * - Zero length Packets are specified with the request 'zero' + * flag. + */ +static int ep_queue(struct usb_ep *usb_ep, struct usb_request *usb_req, + gfp_t gfp_flags) +{ + dwc_otg_pcd_t *pcd; + struct dwc_otg_pcd_ep *ep = NULL; + int retval = 0, is_isoc_ep = 0; + dma_addr_t dma_addr = DWC_DMA_ADDR_INVALID; + + DWC_DEBUGPL(DBG_PCDV, "%s(%p,%p,%d)\n", + __func__, usb_ep, usb_req, gfp_flags); + + if (!usb_req || !usb_req->complete || !usb_req->buf) { + DWC_WARN("bad params\n"); + return -EINVAL; + } + + if (!usb_ep) { + DWC_WARN("bad ep\n"); + return -EINVAL; + } + + pcd = gadget_wrapper->pcd; + if (!gadget_wrapper->driver || + gadget_wrapper->gadget.speed == USB_SPEED_UNKNOWN) { + DWC_DEBUGPL(DBG_PCDV, "gadget.speed=%d\n", + gadget_wrapper->gadget.speed); + DWC_WARN("bogus device state\n"); + return -ESHUTDOWN; + } + + DWC_DEBUGPL(DBG_PCD, "%s queue req %p, len %d buf %p\n", + usb_ep->name, usb_req, usb_req->length, usb_req->buf); + + usb_req->status = -EINPROGRESS; + usb_req->actual = 0; + + ep = ep_from_handle(pcd, usb_ep); + if (ep == NULL) + is_isoc_ep = 0; + else + is_isoc_ep = (ep->dwc_ep.type == DWC_OTG_EP_TYPE_ISOC) ? 1 : 0; +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28) + dma_addr = usb_req->dma; +#else + if (GET_CORE_IF(pcd)->dma_enable) { + dwc_otg_device_t *otg_dev = gadget_wrapper->pcd->otg_dev; + struct device *dev = NULL; + + if (otg_dev != NULL) + dev = DWC_OTG_OS_GETDEV(otg_dev->os_dep); + + if (usb_req->length != 0 && + usb_req->dma == DWC_DMA_ADDR_INVALID) { + dma_addr = dma_map_single(dev, usb_req->buf, + usb_req->length, + ep->dwc_ep.is_in ? + DMA_TO_DEVICE: + DMA_FROM_DEVICE); + } + } +#endif + +#ifdef DWC_UTE_PER_IO + if (is_isoc_ep == 1) { + retval = dwc_otg_pcd_xiso_ep_queue(pcd, usb_ep, usb_req->buf, dma_addr, + usb_req->length, usb_req->zero, usb_req, + gfp_flags == GFP_ATOMIC ? 1 : 0, &usb_req->ext_req); + if (retval) + return -EINVAL; + + return 0; + } +#endif + retval = dwc_otg_pcd_ep_queue(pcd, usb_ep, usb_req->buf, dma_addr, + usb_req->length, usb_req->zero, usb_req, + gfp_flags == GFP_ATOMIC ? 1 : 0); + if (retval) { + return -EINVAL; + } + + return 0; +} + +/** + * This function cancels an I/O request from an EP. + */ +static int ep_dequeue(struct usb_ep *usb_ep, struct usb_request *usb_req) +{ + DWC_DEBUGPL(DBG_PCDV, "%s(%p,%p)\n", __func__, usb_ep, usb_req); + + if (!usb_ep || !usb_req) { + DWC_WARN("bad argument\n"); + return -EINVAL; + } + if (!gadget_wrapper->driver || + gadget_wrapper->gadget.speed == USB_SPEED_UNKNOWN) { + DWC_WARN("bogus device state\n"); + return -ESHUTDOWN; + } + if (dwc_otg_pcd_ep_dequeue(gadget_wrapper->pcd, usb_ep, usb_req)) { + return -EINVAL; + } + + return 0; +} + +/** + * usb_ep_set_halt stalls an endpoint. + * + * usb_ep_clear_halt clears an endpoint halt and resets its data + * toggle. + * + * Both of these functions are implemented with the same underlying + * function. The behavior depends on the value argument. + * + * @param[in] usb_ep the Endpoint to halt or clear halt. + * @param[in] value + * - 0 means clear_halt. + * - 1 means set_halt, + * - 2 means clear stall lock flag. + * - 3 means set stall lock flag. + */ +static int ep_halt(struct usb_ep *usb_ep, int value) +{ + int retval = 0; + + DWC_DEBUGPL(DBG_PCD, "HALT %s %d\n", usb_ep->name, value); + + if (!usb_ep) { + DWC_WARN("bad ep\n"); + return -EINVAL; + } + + retval = dwc_otg_pcd_ep_halt(gadget_wrapper->pcd, usb_ep, value); + if (retval == -DWC_E_AGAIN) { + return -EAGAIN; + } else if (retval) { + retval = -EINVAL; + } + + return retval; +} + +//#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30)) +#if 0 +/** + * ep_wedge: sets the halt feature and ignores clear requests + * + * @usb_ep: the endpoint being wedged + * + * Use this to stall an endpoint and ignore CLEAR_FEATURE(HALT_ENDPOINT) + * requests. If the gadget driver clears the halt status, it will + * automatically unwedge the endpoint. + * + * Returns zero on success, else negative errno. * + * Check usb_ep_set_wedge() at "usb_gadget.h" for details + */ +static int ep_wedge(struct usb_ep *usb_ep) +{ + int retval = 0; + + DWC_DEBUGPL(DBG_PCD, "WEDGE %s\n", usb_ep->name); + + if (!usb_ep) { + DWC_WARN("bad ep\n"); + return -EINVAL; + } + + retval = dwc_otg_pcd_ep_wedge(gadget_wrapper->pcd, usb_ep); + if (retval == -DWC_E_AGAIN) { + retval = -EAGAIN; + } else if (retval) { + retval = -EINVAL; + } + + return retval; +} +#endif + +#ifdef DWC_EN_ISOC +/** + * This function is used to submit an ISOC Transfer Request to an EP. + * + * - Every time a sync period completes the request's completion callback + * is called to provide data to the gadget driver. + * - Once submitted the request cannot be modified. + * - Each request is turned into periodic data packets untill ISO + * Transfer is stopped.. + */ +static int iso_ep_start(struct usb_ep *usb_ep, struct usb_iso_request *req, + gfp_t gfp_flags) +{ + int retval = 0; + + if (!req || !req->process_buffer || !req->buf0 || !req->buf1) { + DWC_WARN("bad params\n"); + return -EINVAL; + } + + if (!usb_ep) { + DWC_PRINTF("bad params\n"); + return -EINVAL; + } + + req->status = -EINPROGRESS; + + retval = + dwc_otg_pcd_iso_ep_start(gadget_wrapper->pcd, usb_ep, req->buf0, + req->buf1, req->dma0, req->dma1, + req->sync_frame, req->data_pattern_frame, + req->data_per_frame, + req-> + flags & USB_REQ_ISO_ASAP ? -1 : + req->start_frame, req->buf_proc_intrvl, + req, gfp_flags == GFP_ATOMIC ? 1 : 0); + + if (retval) { + return -EINVAL; + } + + return retval; +} + +/** + * This function stops ISO EP Periodic Data Transfer. + */ +static int iso_ep_stop(struct usb_ep *usb_ep, struct usb_iso_request *req) +{ + int retval = 0; + if (!usb_ep) { + DWC_WARN("bad ep\n"); + } + + if (!gadget_wrapper->driver || + gadget_wrapper->gadget.speed == USB_SPEED_UNKNOWN) { + DWC_DEBUGPL(DBG_PCDV, "gadget.speed=%d\n", + gadget_wrapper->gadget.speed); + DWC_WARN("bogus device state\n"); + } + + dwc_otg_pcd_iso_ep_stop(gadget_wrapper->pcd, usb_ep, req); + if (retval) { + retval = -EINVAL; + } + + return retval; +} + +static struct usb_iso_request *alloc_iso_request(struct usb_ep *ep, + int packets, gfp_t gfp_flags) +{ + struct usb_iso_request *pReq = NULL; + uint32_t req_size; + + req_size = sizeof(struct usb_iso_request); + req_size += + (2 * packets * (sizeof(struct usb_gadget_iso_packet_descriptor))); + + pReq = kmalloc(req_size, gfp_flags); + if (!pReq) { + DWC_WARN("Can't allocate Iso Request\n"); + return 0; + } + pReq->iso_packet_desc0 = (void *)(pReq + 1); + + pReq->iso_packet_desc1 = pReq->iso_packet_desc0 + packets; + + return pReq; +} + +static void free_iso_request(struct usb_ep *ep, struct usb_iso_request *req) +{ + kfree(req); +} + +static struct usb_isoc_ep_ops dwc_otg_pcd_ep_ops = { + .ep_ops = { + .enable = ep_enable, + .disable = ep_disable, + + .alloc_request = dwc_otg_pcd_alloc_request, + .free_request = dwc_otg_pcd_free_request, + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28) + .alloc_buffer = dwc_otg_pcd_alloc_buffer, + .free_buffer = dwc_otg_pcd_free_buffer, +#endif + + .queue = ep_queue, + .dequeue = ep_dequeue, + + .set_halt = ep_halt, + .fifo_status = 0, + .fifo_flush = 0, + }, + .iso_ep_start = iso_ep_start, + .iso_ep_stop = iso_ep_stop, + .alloc_iso_request = alloc_iso_request, + .free_iso_request = free_iso_request, +}; + +#else + + int (*enable) (struct usb_ep *ep, + const struct usb_endpoint_descriptor *desc); + int (*disable) (struct usb_ep *ep); + + struct usb_request *(*alloc_request) (struct usb_ep *ep, + gfp_t gfp_flags); + void (*free_request) (struct usb_ep *ep, struct usb_request *req); + + int (*queue) (struct usb_ep *ep, struct usb_request *req, + gfp_t gfp_flags); + int (*dequeue) (struct usb_ep *ep, struct usb_request *req); + + int (*set_halt) (struct usb_ep *ep, int value); + int (*set_wedge) (struct usb_ep *ep); + + int (*fifo_status) (struct usb_ep *ep); + void (*fifo_flush) (struct usb_ep *ep); +static struct usb_ep_ops dwc_otg_pcd_ep_ops = { + .enable = ep_enable, + .disable = ep_disable, + + .alloc_request = dwc_otg_pcd_alloc_request, + .free_request = dwc_otg_pcd_free_request, + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28) + .alloc_buffer = dwc_otg_pcd_alloc_buffer, + .free_buffer = dwc_otg_pcd_free_buffer, +#else + /* .set_wedge = ep_wedge, */ + .set_wedge = NULL, /* uses set_halt instead */ +#endif + + .queue = ep_queue, + .dequeue = ep_dequeue, + + .set_halt = ep_halt, + .fifo_status = 0, + .fifo_flush = 0, + +}; + +#endif /* _EN_ISOC_ */ +/* Gadget Operations */ +/** + * The following gadget operations will be implemented in the DWC_otg + * PCD. Functions in the API that are not described below are not + * implemented. + * + * The Gadget API provides wrapper functions for each of the function + * pointers defined in usb_gadget_ops. The Gadget Driver calls the + * wrapper function, which then calls the underlying PCD function. The + * following sections are named according to the wrapper functions + * (except for ioctl, which doesn't have a wrapper function). Within + * each section, the corresponding DWC_otg PCD function name is + * specified. + * + */ + +/** + *Gets the USB Frame number of the last SOF. + */ +static int get_frame_number(struct usb_gadget *gadget) +{ + struct gadget_wrapper *d; + + DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, gadget); + + if (gadget == 0) { + return -ENODEV; + } + + d = container_of(gadget, struct gadget_wrapper, gadget); + return dwc_otg_pcd_get_frame_number(d->pcd); +} + +#ifdef CONFIG_USB_DWC_OTG_LPM +static int test_lpm_enabled(struct usb_gadget *gadget) +{ + struct gadget_wrapper *d; + + d = container_of(gadget, struct gadget_wrapper, gadget); + + return dwc_otg_pcd_is_lpm_enabled(d->pcd); +} +#endif + +/** + * Initiates Session Request Protocol (SRP) to wakeup the host if no + * session is in progress. If a session is already in progress, but + * the device is suspended, remote wakeup signaling is started. + * + */ +static int wakeup(struct usb_gadget *gadget) +{ + struct gadget_wrapper *d; + + DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, gadget); + + if (gadget == 0) { + return -ENODEV; + } else { + d = container_of(gadget, struct gadget_wrapper, gadget); + } + dwc_otg_pcd_wakeup(d->pcd); + return 0; +} + +static const struct usb_gadget_ops dwc_otg_pcd_ops = { + .get_frame = get_frame_number, + .wakeup = wakeup, +#ifdef CONFIG_USB_DWC_OTG_LPM + .lpm_support = test_lpm_enabled, +#endif + // current versions must always be self-powered +}; + +static int _setup(dwc_otg_pcd_t * pcd, uint8_t * bytes) +{ + int retval = -DWC_E_NOT_SUPPORTED; + if (gadget_wrapper->driver && gadget_wrapper->driver->setup) { + retval = gadget_wrapper->driver->setup(&gadget_wrapper->gadget, + (struct usb_ctrlrequest + *)bytes); + } + + if (retval == -ENOTSUPP) { + retval = -DWC_E_NOT_SUPPORTED; + } else if (retval < 0) { + retval = -DWC_E_INVALID; + } + + return retval; +} + +#ifdef DWC_EN_ISOC +static int _isoc_complete(dwc_otg_pcd_t * pcd, void *ep_handle, + void *req_handle, int proc_buf_num) +{ + int i, packet_count; + struct usb_gadget_iso_packet_descriptor *iso_packet = 0; + struct usb_iso_request *iso_req = req_handle; + + if (proc_buf_num) { + iso_packet = iso_req->iso_packet_desc1; + } else { + iso_packet = iso_req->iso_packet_desc0; + } + packet_count = + dwc_otg_pcd_get_iso_packet_count(pcd, ep_handle, req_handle); + for (i = 0; i < packet_count; ++i) { + int status; + int actual; + int offset; + dwc_otg_pcd_get_iso_packet_params(pcd, ep_handle, req_handle, + i, &status, &actual, &offset); + switch (status) { + case -DWC_E_NO_DATA: + status = -ENODATA; + break; + default: + if (status) { + DWC_PRINTF("unknown status in isoc packet\n"); + } + + } + iso_packet[i].status = status; + iso_packet[i].offset = offset; + iso_packet[i].actual_length = actual; + } + + iso_req->status = 0; + iso_req->process_buffer(ep_handle, iso_req); + + return 0; +} +#endif /* DWC_EN_ISOC */ + +#ifdef DWC_UTE_PER_IO +/** + * Copy the contents of the extended request to the Linux usb_request's + * extended part and call the gadget's completion. + * + * @param pcd Pointer to the pcd structure + * @param ep_handle Void pointer to the usb_ep structure + * @param req_handle Void pointer to the usb_request structure + * @param status Request status returned from the portable logic + * @param ereq_port Void pointer to the extended request structure + * created in the the portable part that contains the + * results of the processed iso packets. + */ +static int _xisoc_complete(dwc_otg_pcd_t * pcd, void *ep_handle, + void *req_handle, int32_t status, void *ereq_port) +{ + struct dwc_ute_iso_req_ext *ereqorg = NULL; + struct dwc_iso_xreq_port *ereqport = NULL; + struct dwc_ute_iso_packet_descriptor *desc_org = NULL; + int i; + struct usb_request *req; + //struct dwc_ute_iso_packet_descriptor * + //int status = 0; + + req = (struct usb_request *)req_handle; + ereqorg = &req->ext_req; + ereqport = (struct dwc_iso_xreq_port *)ereq_port; + desc_org = ereqorg->per_io_frame_descs; + + if (req && req->complete) { + /* Copy the request data from the portable logic to our request */ + for (i = 0; i < ereqport->pio_pkt_count; i++) { + desc_org[i].actual_length = + ereqport->per_io_frame_descs[i].actual_length; + desc_org[i].status = + ereqport->per_io_frame_descs[i].status; + } + + switch (status) { + case -DWC_E_SHUTDOWN: + req->status = -ESHUTDOWN; + break; + case -DWC_E_RESTART: + req->status = -ECONNRESET; + break; + case -DWC_E_INVALID: + req->status = -EINVAL; + break; + case -DWC_E_TIMEOUT: + req->status = -ETIMEDOUT; + break; + default: + req->status = status; + } + + /* And call the gadget's completion */ + req->complete(ep_handle, req); + } + + return 0; +} +#endif /* DWC_UTE_PER_IO */ + +static int _complete(dwc_otg_pcd_t * pcd, void *ep_handle, + void *req_handle, int32_t status, uint32_t actual) +{ + struct usb_request *req = (struct usb_request *)req_handle; +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,27) + struct dwc_otg_pcd_ep *ep = NULL; +#endif + + if (req && req->complete) { + switch (status) { + case -DWC_E_SHUTDOWN: + req->status = -ESHUTDOWN; + break; + case -DWC_E_RESTART: + req->status = -ECONNRESET; + break; + case -DWC_E_INVALID: + req->status = -EINVAL; + break; + case -DWC_E_TIMEOUT: + req->status = -ETIMEDOUT; + break; + default: + req->status = status; + + } + + req->actual = actual; + DWC_SPINUNLOCK(pcd->lock); + req->complete(ep_handle, req); + DWC_SPINLOCK(pcd->lock); + } +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,27) + ep = ep_from_handle(pcd, ep_handle); + if (GET_CORE_IF(pcd)->dma_enable) { + if (req->length != 0) { + dwc_otg_device_t *otg_dev = gadget_wrapper->pcd->otg_dev; + struct device *dev = NULL; + + if (otg_dev != NULL) + dev = DWC_OTG_OS_GETDEV(otg_dev->os_dep); + + dma_unmap_single(dev, req->dma, req->length, + ep->dwc_ep.is_in ? + DMA_TO_DEVICE: DMA_FROM_DEVICE); + } + } +#endif + + return 0; +} + +static int _connect(dwc_otg_pcd_t * pcd, int speed) +{ + gadget_wrapper->gadget.speed = speed; + return 0; +} + +static int _disconnect(dwc_otg_pcd_t * pcd) +{ + if (gadget_wrapper->driver && gadget_wrapper->driver->disconnect) { + gadget_wrapper->driver->disconnect(&gadget_wrapper->gadget); + } + return 0; +} + +static int _resume(dwc_otg_pcd_t * pcd) +{ + if (gadget_wrapper->driver && gadget_wrapper->driver->resume) { + gadget_wrapper->driver->resume(&gadget_wrapper->gadget); + } + + return 0; +} + +static int _suspend(dwc_otg_pcd_t * pcd) +{ + if (gadget_wrapper->driver && gadget_wrapper->driver->suspend) { + gadget_wrapper->driver->suspend(&gadget_wrapper->gadget); + } + return 0; +} + +/** + * This function updates the otg values in the gadget structure. + */ +static int _hnp_changed(dwc_otg_pcd_t * pcd) +{ + + if (!gadget_wrapper->gadget.is_otg) + return 0; + + gadget_wrapper->gadget.b_hnp_enable = get_b_hnp_enable(pcd); + gadget_wrapper->gadget.a_hnp_support = get_a_hnp_support(pcd); + gadget_wrapper->gadget.a_alt_hnp_support = get_a_alt_hnp_support(pcd); + return 0; +} + +static int _reset(dwc_otg_pcd_t * pcd) +{ + return 0; +} + +#ifdef DWC_UTE_CFI +static int _cfi_setup(dwc_otg_pcd_t * pcd, void *cfi_req) +{ + int retval = -DWC_E_INVALID; + if (gadget_wrapper->driver->cfi_feature_setup) { + retval = + gadget_wrapper->driver-> + cfi_feature_setup(&gadget_wrapper->gadget, + (struct cfi_usb_ctrlrequest *)cfi_req); + } + + return retval; +} +#endif + +static const struct dwc_otg_pcd_function_ops fops = { + .complete = _complete, +#ifdef DWC_EN_ISOC + .isoc_complete = _isoc_complete, +#endif + .setup = _setup, + .disconnect = _disconnect, + .connect = _connect, + .resume = _resume, + .suspend = _suspend, + .hnp_changed = _hnp_changed, + .reset = _reset, +#ifdef DWC_UTE_CFI + .cfi_setup = _cfi_setup, +#endif +#ifdef DWC_UTE_PER_IO + .xisoc_complete = _xisoc_complete, +#endif +}; + +/** + * This function is the top level PCD interrupt handler. + */ +static irqreturn_t dwc_otg_pcd_irq(int irq, void *dev) +{ + dwc_otg_pcd_t *pcd = dev; + int32_t retval = IRQ_NONE; + + retval = dwc_otg_pcd_handle_intr(pcd); + if (retval != 0) { + S3C2410X_CLEAR_EINTPEND(); + } + return IRQ_RETVAL(retval); +} + +/** + * This function initialized the usb_ep structures to there default + * state. + * + * @param d Pointer on gadget_wrapper. + */ +void gadget_add_eps(struct gadget_wrapper *d) +{ + static const char *names[] = { + + "ep0", + "ep1in", + "ep2in", + "ep3in", + "ep4in", + "ep5in", + "ep6in", + "ep7in", + "ep8in", + "ep9in", + "ep10in", + "ep11in", + "ep12in", + "ep13in", + "ep14in", + "ep15in", + "ep1out", + "ep2out", + "ep3out", + "ep4out", + "ep5out", + "ep6out", + "ep7out", + "ep8out", + "ep9out", + "ep10out", + "ep11out", + "ep12out", + "ep13out", + "ep14out", + "ep15out" + }; + + int i; + struct usb_ep *ep; + int8_t dev_endpoints; + + DWC_DEBUGPL(DBG_PCDV, "%s\n", __func__); + + INIT_LIST_HEAD(&d->gadget.ep_list); + d->gadget.ep0 = &d->ep0; + d->gadget.speed = USB_SPEED_UNKNOWN; + + INIT_LIST_HEAD(&d->gadget.ep0->ep_list); + + /** + * Initialize the EP0 structure. + */ + ep = &d->ep0; + + /* Init the usb_ep structure. */ + ep->name = names[0]; + ep->ops = (struct usb_ep_ops *)&dwc_otg_pcd_ep_ops; + + /** + * @todo NGS: What should the max packet size be set to + * here? Before EP type is set? + */ + ep->maxpacket = MAX_PACKET_SIZE; + dwc_otg_pcd_ep_enable(d->pcd, NULL, ep); + + list_add_tail(&ep->ep_list, &d->gadget.ep_list); + + /** + * Initialize the EP structures. + */ + dev_endpoints = d->pcd->core_if->dev_if->num_in_eps; + + for (i = 0; i < dev_endpoints; i++) { + ep = &d->in_ep[i]; + + /* Init the usb_ep structure. */ + ep->name = names[d->pcd->in_ep[i].dwc_ep.num]; + ep->ops = (struct usb_ep_ops *)&dwc_otg_pcd_ep_ops; + + /** + * @todo NGS: What should the max packet size be set to + * here? Before EP type is set? + */ + ep->maxpacket = MAX_PACKET_SIZE; + list_add_tail(&ep->ep_list, &d->gadget.ep_list); + } + + dev_endpoints = d->pcd->core_if->dev_if->num_out_eps; + + for (i = 0; i < dev_endpoints; i++) { + ep = &d->out_ep[i]; + + /* Init the usb_ep structure. */ + ep->name = names[15 + d->pcd->out_ep[i].dwc_ep.num]; + ep->ops = (struct usb_ep_ops *)&dwc_otg_pcd_ep_ops; + + /** + * @todo NGS: What should the max packet size be set to + * here? Before EP type is set? + */ + ep->maxpacket = MAX_PACKET_SIZE; + + list_add_tail(&ep->ep_list, &d->gadget.ep_list); + } + + /* remove ep0 from the list. There is a ep0 pointer. */ + list_del_init(&d->ep0.ep_list); + + d->ep0.maxpacket = MAX_EP0_SIZE; +} + +/** + * This function releases the Gadget device. + * required by device_unregister(). + * + * @todo Should this do something? Should it free the PCD? + */ +static void dwc_otg_pcd_gadget_release(struct device *dev) +{ + DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, dev); +} + +static struct gadget_wrapper *alloc_wrapper(dwc_bus_dev_t *_dev) +{ + static char pcd_name[] = "dwc_otg_pcd"; + dwc_otg_device_t *otg_dev = DWC_OTG_BUSDRVDATA(_dev); + struct gadget_wrapper *d; + int retval; + + d = DWC_ALLOC(sizeof(*d)); + if (d == NULL) { + return NULL; + } + + memset(d, 0, sizeof(*d)); + + d->gadget.name = pcd_name; + d->pcd = otg_dev->pcd; + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30) + strcpy(d->gadget.dev.bus_id, "gadget"); +#else + dev_set_name(&d->gadget.dev, "%s", "gadget"); +#endif + + d->gadget.dev.parent = &_dev->dev; + d->gadget.dev.release = dwc_otg_pcd_gadget_release; + d->gadget.ops = &dwc_otg_pcd_ops; + d->gadget.max_speed = dwc_otg_pcd_is_dualspeed(otg_dev->pcd) ? USB_SPEED_HIGH:USB_SPEED_FULL; + d->gadget.is_otg = dwc_otg_pcd_is_otg(otg_dev->pcd); + + d->driver = 0; + /* Register the gadget device */ + retval = device_register(&d->gadget.dev); + if (retval != 0) { + DWC_ERROR("device_register failed\n"); + DWC_FREE(d); + return NULL; + } + + return d; +} + +static void free_wrapper(struct gadget_wrapper *d) +{ + if (d->driver) { + /* should have been done already by driver model core */ + DWC_WARN("driver '%s' is still registered\n", + d->driver->driver.name); +#ifdef CONFIG_USB_GADGET + usb_gadget_unregister_driver(d->driver); +#endif + } + + device_unregister(&d->gadget.dev); + DWC_FREE(d); +} + +/** + * This function initialized the PCD portion of the driver. + * + */ +int pcd_init(dwc_bus_dev_t *_dev) +{ + dwc_otg_device_t *otg_dev = DWC_OTG_BUSDRVDATA(_dev); + int retval = 0; + + DWC_DEBUGPL(DBG_PCDV, "%s(%p) otg_dev=%p\n", __func__, _dev, otg_dev); + + otg_dev->pcd = dwc_otg_pcd_init(otg_dev); + + if (!otg_dev->pcd) { + DWC_ERROR("dwc_otg_pcd_init failed\n"); + return -ENOMEM; + } + + otg_dev->pcd->otg_dev = otg_dev; + gadget_wrapper = alloc_wrapper(_dev); + + /* + * Initialize EP structures + */ + gadget_add_eps(gadget_wrapper); + /* + * Setup interupt handler + */ +#ifdef PLATFORM_INTERFACE + DWC_DEBUGPL(DBG_ANY, "registering handler for irq%d\n", + platform_get_irq(_dev, fiq_enable ? 0 : 1)); + retval = request_irq(platform_get_irq(_dev, fiq_enable ? 0 : 1), dwc_otg_pcd_irq, + IRQF_SHARED, gadget_wrapper->gadget.name, + otg_dev->pcd); + if (retval != 0) { + DWC_ERROR("request of irq%d failed\n", + platform_get_irq(_dev, fiq_enable ? 0 : 1)); + free_wrapper(gadget_wrapper); + return -EBUSY; + } +#else + DWC_DEBUGPL(DBG_ANY, "registering handler for irq%d\n", + _dev->irq); + retval = request_irq(_dev->irq, dwc_otg_pcd_irq, + IRQF_SHARED | IRQF_DISABLED, + gadget_wrapper->gadget.name, otg_dev->pcd); + if (retval != 0) { + DWC_ERROR("request of irq%d failed\n", _dev->irq); + free_wrapper(gadget_wrapper); + return -EBUSY; + } +#endif + + dwc_otg_pcd_start(gadget_wrapper->pcd, &fops); + + return retval; +} + +/** + * Cleanup the PCD. + */ +void pcd_remove(dwc_bus_dev_t *_dev) +{ + dwc_otg_device_t *otg_dev = DWC_OTG_BUSDRVDATA(_dev); + dwc_otg_pcd_t *pcd = otg_dev->pcd; + + DWC_DEBUGPL(DBG_PCDV, "%s(%p) otg_dev %p\n", __func__, _dev, otg_dev); + + /* + * Free the IRQ + */ +#ifdef PLATFORM_INTERFACE + free_irq(platform_get_irq(_dev, 0), pcd); +#else + free_irq(_dev->irq, pcd); +#endif + dwc_otg_pcd_remove(otg_dev->pcd); + free_wrapper(gadget_wrapper); + otg_dev->pcd = 0; +} + +#endif /* DWC_HOST_ONLY */ diff --git a/drivers/usb/host/dwc_otg/dwc_otg_regs.h b/drivers/usb/host/dwc_otg/dwc_otg_regs.h new file mode 100644 index 0000000000000000000000000000000000000000..8e0e7b569f1ac00fdbf3cdd2e22102cf195c74b7 --- /dev/null +++ b/drivers/usb/host/dwc_otg/dwc_otg_regs.h @@ -0,0 +1,2550 @@ +/* ========================================================================== + * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_regs.h $ + * $Revision: #98 $ + * $Date: 2012/08/10 $ + * $Change: 2047372 $ + * + * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, + * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless + * otherwise expressly agreed to in writing between Synopsys and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product under + * any End User Software License Agreement or Agreement for Licensed Product + * with Synopsys or any supplement thereto. You are permitted to use and + * redistribute this Software in source and binary forms, with or without + * modification, provided that redistributions of source code must retain this + * notice. You may not view, use, disclose, copy or distribute this file or + * any information contained herein except pursuant to this license grant from + * Synopsys. If you do not agree with this notice, including the disclaimer + * below, then you are not authorized to use the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * ========================================================================== */ + +#ifndef __DWC_OTG_REGS_H__ +#define __DWC_OTG_REGS_H__ + +#include "dwc_otg_core_if.h" + +/** + * @file + * + * This file contains the data structures for accessing the DWC_otg core registers. + * + * The application interfaces with the HS OTG core by reading from and + * writing to the Control and Status Register (CSR) space through the + * AHB Slave interface. These registers are 32 bits wide, and the + * addresses are 32-bit-block aligned. + * CSRs are classified as follows: + * - Core Global Registers + * - Device Mode Registers + * - Device Global Registers + * - Device Endpoint Specific Registers + * - Host Mode Registers + * - Host Global Registers + * - Host Port CSRs + * - Host Channel Specific Registers + * + * Only the Core Global registers can be accessed in both Device and + * Host modes. When the HS OTG core is operating in one mode, either + * Device or Host, the application must not access registers from the + * other mode. When the core switches from one mode to another, the + * registers in the new mode of operation must be reprogrammed as they + * would be after a power-on reset. + */ + +/****************************************************************************/ +/** DWC_otg Core registers . + * The dwc_otg_core_global_regs structure defines the size + * and relative field offsets for the Core Global registers. + */ +typedef struct dwc_otg_core_global_regs { + /** OTG Control and Status Register. Offset: 000h */ + volatile uint32_t gotgctl; + /** OTG Interrupt Register. Offset: 004h */ + volatile uint32_t gotgint; + /**Core AHB Configuration Register. Offset: 008h */ + volatile uint32_t gahbcfg; + +#define DWC_GLBINTRMASK 0x0001 +#define DWC_DMAENABLE 0x0020 +#define DWC_NPTXEMPTYLVL_EMPTY 0x0080 +#define DWC_NPTXEMPTYLVL_HALFEMPTY 0x0000 +#define DWC_PTXEMPTYLVL_EMPTY 0x0100 +#define DWC_PTXEMPTYLVL_HALFEMPTY 0x0000 + + /**Core USB Configuration Register. Offset: 00Ch */ + volatile uint32_t gusbcfg; + /**Core Reset Register. Offset: 010h */ + volatile uint32_t grstctl; + /**Core Interrupt Register. Offset: 014h */ + volatile uint32_t gintsts; + /**Core Interrupt Mask Register. Offset: 018h */ + volatile uint32_t gintmsk; + /**Receive Status Queue Read Register (Read Only). Offset: 01Ch */ + volatile uint32_t grxstsr; + /**Receive Status Queue Read & POP Register (Read Only). Offset: 020h*/ + volatile uint32_t grxstsp; + /**Receive FIFO Size Register. Offset: 024h */ + volatile uint32_t grxfsiz; + /**Non Periodic Transmit FIFO Size Register. Offset: 028h */ + volatile uint32_t gnptxfsiz; + /**Non Periodic Transmit FIFO/Queue Status Register (Read + * Only). Offset: 02Ch */ + volatile uint32_t gnptxsts; + /**I2C Access Register. Offset: 030h */ + volatile uint32_t gi2cctl; + /**PHY Vendor Control Register. Offset: 034h */ + volatile uint32_t gpvndctl; + /**General Purpose Input/Output Register. Offset: 038h */ + volatile uint32_t ggpio; + /**User ID Register. Offset: 03Ch */ + volatile uint32_t guid; + /**Synopsys ID Register (Read Only). Offset: 040h */ + volatile uint32_t gsnpsid; + /**User HW Config1 Register (Read Only). Offset: 044h */ + volatile uint32_t ghwcfg1; + /**User HW Config2 Register (Read Only). Offset: 048h */ + volatile uint32_t ghwcfg2; +#define DWC_SLAVE_ONLY_ARCH 0 +#define DWC_EXT_DMA_ARCH 1 +#define DWC_INT_DMA_ARCH 2 + +#define DWC_MODE_HNP_SRP_CAPABLE 0 +#define DWC_MODE_SRP_ONLY_CAPABLE 1 +#define DWC_MODE_NO_HNP_SRP_CAPABLE 2 +#define DWC_MODE_SRP_CAPABLE_DEVICE 3 +#define DWC_MODE_NO_SRP_CAPABLE_DEVICE 4 +#define DWC_MODE_SRP_CAPABLE_HOST 5 +#define DWC_MODE_NO_SRP_CAPABLE_HOST 6 + + /**User HW Config3 Register (Read Only). Offset: 04Ch */ + volatile uint32_t ghwcfg3; + /**User HW Config4 Register (Read Only). Offset: 050h*/ + volatile uint32_t ghwcfg4; + /** Core LPM Configuration register Offset: 054h*/ + volatile uint32_t glpmcfg; + /** Global PowerDn Register Offset: 058h */ + volatile uint32_t gpwrdn; + /** Global DFIFO SW Config Register Offset: 05Ch */ + volatile uint32_t gdfifocfg; + /** ADP Control Register Offset: 060h */ + volatile uint32_t adpctl; + /** Reserved Offset: 064h-0FFh */ + volatile uint32_t reserved39[39]; + /** Host Periodic Transmit FIFO Size Register. Offset: 100h */ + volatile uint32_t hptxfsiz; + /** Device Periodic Transmit FIFO#n Register if dedicated fifos are disabled, + otherwise Device Transmit FIFO#n Register. + * Offset: 104h + (FIFO_Number-1)*04h, 1 <= FIFO Number <= 15 (1<=n<=15). */ + volatile uint32_t dtxfsiz[15]; +} dwc_otg_core_global_regs_t; + +/** + * This union represents the bit fields of the Core OTG Control + * and Status Register (GOTGCTL). Set the bits using the bit + * fields then write the d32 value to the register. + */ +typedef union gotgctl_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + unsigned sesreqscs:1; + unsigned sesreq:1; + unsigned vbvalidoven:1; + unsigned vbvalidovval:1; + unsigned avalidoven:1; + unsigned avalidovval:1; + unsigned bvalidoven:1; + unsigned bvalidovval:1; + unsigned hstnegscs:1; + unsigned hnpreq:1; + unsigned hstsethnpen:1; + unsigned devhnpen:1; + unsigned reserved12_15:4; + unsigned conidsts:1; + unsigned dbnctime:1; + unsigned asesvld:1; + unsigned bsesvld:1; + unsigned otgver:1; + unsigned reserved1:1; + unsigned multvalidbc:5; + unsigned chirpen:1; + unsigned reserved28_31:4; + } b; +} gotgctl_data_t; + +/** + * This union represents the bit fields of the Core OTG Interrupt Register + * (GOTGINT). Set/clear the bits using the bit fields then write the d32 + * value to the register. + */ +typedef union gotgint_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + /** Current Mode */ + unsigned reserved0_1:2; + + /** Session End Detected */ + unsigned sesenddet:1; + + unsigned reserved3_7:5; + + /** Session Request Success Status Change */ + unsigned sesreqsucstschng:1; + /** Host Negotiation Success Status Change */ + unsigned hstnegsucstschng:1; + + unsigned reserved10_16:7; + + /** Host Negotiation Detected */ + unsigned hstnegdet:1; + /** A-Device Timeout Change */ + unsigned adevtoutchng:1; + /** Debounce Done */ + unsigned debdone:1; + /** Multi-Valued input changed */ + unsigned mvic:1; + + unsigned reserved31_21:11; + + } b; +} gotgint_data_t; + +/** + * This union represents the bit fields of the Core AHB Configuration + * Register (GAHBCFG). Set/clear the bits using the bit fields then + * write the d32 value to the register. + */ +typedef union gahbcfg_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + unsigned glblintrmsk:1; +#define DWC_GAHBCFG_GLBINT_ENABLE 1 + + unsigned hburstlen:4; +#define DWC_GAHBCFG_INT_DMA_BURST_SINGLE 0 +#define DWC_GAHBCFG_INT_DMA_BURST_INCR 1 +#define DWC_GAHBCFG_INT_DMA_BURST_INCR4 3 +#define DWC_GAHBCFG_INT_DMA_BURST_INCR8 5 +#define DWC_GAHBCFG_INT_DMA_BURST_INCR16 7 + + unsigned dmaenable:1; +#define DWC_GAHBCFG_DMAENABLE 1 + unsigned reserved:1; + unsigned nptxfemplvl_txfemplvl:1; + unsigned ptxfemplvl:1; +#define DWC_GAHBCFG_TXFEMPTYLVL_EMPTY 1 +#define DWC_GAHBCFG_TXFEMPTYLVL_HALFEMPTY 0 + unsigned reserved9_20:12; + unsigned remmemsupp:1; + unsigned notialldmawrit:1; + unsigned ahbsingle:1; + unsigned reserved24_31:8; + } b; +} gahbcfg_data_t; + +/** + * This union represents the bit fields of the Core USB Configuration + * Register (GUSBCFG). Set the bits using the bit fields then write + * the d32 value to the register. + */ +typedef union gusbcfg_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + unsigned toutcal:3; + unsigned phyif:1; + unsigned ulpi_utmi_sel:1; + unsigned fsintf:1; + unsigned physel:1; + unsigned ddrsel:1; + unsigned srpcap:1; + unsigned hnpcap:1; + unsigned usbtrdtim:4; + unsigned reserved1:1; + unsigned phylpwrclksel:1; + unsigned otgutmifssel:1; + unsigned ulpi_fsls:1; + unsigned ulpi_auto_res:1; + unsigned ulpi_clk_sus_m:1; + unsigned ulpi_ext_vbus_drv:1; + unsigned ulpi_int_vbus_indicator:1; + unsigned term_sel_dl_pulse:1; + unsigned indicator_complement:1; + unsigned indicator_pass_through:1; + unsigned ulpi_int_prot_dis:1; + unsigned ic_usb_cap:1; + unsigned ic_traffic_pull_remove:1; + unsigned tx_end_delay:1; + unsigned force_host_mode:1; + unsigned force_dev_mode:1; + unsigned reserved31:1; + } b; +} gusbcfg_data_t; + +/** + * This union represents the bit fields of the Core Reset Register + * (GRSTCTL). Set/clear the bits using the bit fields then write the + * d32 value to the register. + */ +typedef union grstctl_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + /** Core Soft Reset (CSftRst) (Device and Host) + * + * The application can flush the control logic in the + * entire core using this bit. This bit resets the + * pipelines in the AHB Clock domain as well as the + * PHY Clock domain. + * + * The state machines are reset to an IDLE state, the + * control bits in the CSRs are cleared, all the + * transmit FIFOs and the receive FIFO are flushed. + * + * The status mask bits that control the generation of + * the interrupt, are cleared, to clear the + * interrupt. The interrupt status bits are not + * cleared, so the application can get the status of + * any events that occurred in the core after it has + * set this bit. + * + * Any transactions on the AHB are terminated as soon + * as possible following the protocol. Any + * transactions on the USB are terminated immediately. + * + * The configuration settings in the CSRs are + * unchanged, so the software doesn't have to + * reprogram these registers (Device + * Configuration/Host Configuration/Core System + * Configuration/Core PHY Configuration). + * + * The application can write to this bit, any time it + * wants to reset the core. This is a self clearing + * bit and the core clears this bit after all the + * necessary logic is reset in the core, which may + * take several clocks, depending on the current state + * of the core. + */ + unsigned csftrst:1; + /** Hclk Soft Reset + * + * The application uses this bit to reset the control logic in + * the AHB clock domain. Only AHB clock domain pipelines are + * reset. + */ + unsigned hsftrst:1; + /** Host Frame Counter Reset (Host Only)
+ * + * The application can reset the (micro)frame number + * counter inside the core, using this bit. When the + * (micro)frame counter is reset, the subsequent SOF + * sent out by the core, will have a (micro)frame + * number of 0. + */ + unsigned hstfrm:1; + /** In Token Sequence Learning Queue Flush + * (INTknQFlsh) (Device Only) + */ + unsigned intknqflsh:1; + /** RxFIFO Flush (RxFFlsh) (Device and Host) + * + * The application can flush the entire Receive FIFO + * using this bit. The application must first + * ensure that the core is not in the middle of a + * transaction. The application should write into + * this bit, only after making sure that neither the + * DMA engine is reading from the RxFIFO nor the MAC + * is writing the data in to the FIFO. The + * application should wait until the bit is cleared + * before performing any other operations. This bit + * will takes 8 clocks (slowest of PHY or AHB clock) + * to clear. + */ + unsigned rxfflsh:1; + /** TxFIFO Flush (TxFFlsh) (Device and Host). + * + * This bit is used to selectively flush a single or + * all transmit FIFOs. The application must first + * ensure that the core is not in the middle of a + * transaction. The application should write into + * this bit, only after making sure that neither the + * DMA engine is writing into the TxFIFO nor the MAC + * is reading the data out of the FIFO. The + * application should wait until the core clears this + * bit, before performing any operations. This bit + * will takes 8 clocks (slowest of PHY or AHB clock) + * to clear. + */ + unsigned txfflsh:1; + + /** TxFIFO Number (TxFNum) (Device and Host). + * + * This is the FIFO number which needs to be flushed, + * using the TxFIFO Flush bit. This field should not + * be changed until the TxFIFO Flush bit is cleared by + * the core. + * - 0x0 : Non Periodic TxFIFO Flush + * - 0x1 : Periodic TxFIFO #1 Flush in device mode + * or Periodic TxFIFO in host mode + * - 0x2 : Periodic TxFIFO #2 Flush in device mode. + * - ... + * - 0xF : Periodic TxFIFO #15 Flush in device mode + * - 0x10: Flush all the Transmit NonPeriodic and + * Transmit Periodic FIFOs in the core + */ + unsigned txfnum:5; + /** Reserved */ + unsigned reserved11_29:19; + /** DMA Request Signal. Indicated DMA request is in + * probress. Used for debug purpose. */ + unsigned dmareq:1; + /** AHB Master Idle. Indicates the AHB Master State + * Machine is in IDLE condition. */ + unsigned ahbidle:1; + } b; +} grstctl_t; + +/** + * This union represents the bit fields of the Core Interrupt Mask + * Register (GINTMSK). Set/clear the bits using the bit fields then + * write the d32 value to the register. + */ +typedef union gintmsk_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + unsigned reserved0:1; + unsigned modemismatch:1; + unsigned otgintr:1; + unsigned sofintr:1; + unsigned rxstsqlvl:1; + unsigned nptxfempty:1; + unsigned ginnakeff:1; + unsigned goutnakeff:1; + unsigned ulpickint:1; + unsigned i2cintr:1; + unsigned erlysuspend:1; + unsigned usbsuspend:1; + unsigned usbreset:1; + unsigned enumdone:1; + unsigned isooutdrop:1; + unsigned eopframe:1; + unsigned restoredone:1; + unsigned epmismatch:1; + unsigned inepintr:1; + unsigned outepintr:1; + unsigned incomplisoin:1; + unsigned incomplisoout:1; + unsigned fetsusp:1; + unsigned resetdet:1; + unsigned portintr:1; + unsigned hcintr:1; + unsigned ptxfempty:1; + unsigned lpmtranrcvd:1; + unsigned conidstschng:1; + unsigned disconnect:1; + unsigned sessreqintr:1; + unsigned wkupintr:1; + } b; +} gintmsk_data_t; +/** + * This union represents the bit fields of the Core Interrupt Register + * (GINTSTS). Set/clear the bits using the bit fields then write the + * d32 value to the register. + */ +typedef union gintsts_data { + /** raw register data */ + uint32_t d32; +#define DWC_SOF_INTR_MASK 0x0008 + /** register bits */ + struct { +#define DWC_HOST_MODE 1 + unsigned curmode:1; + unsigned modemismatch:1; + unsigned otgintr:1; + unsigned sofintr:1; + unsigned rxstsqlvl:1; + unsigned nptxfempty:1; + unsigned ginnakeff:1; + unsigned goutnakeff:1; + unsigned ulpickint:1; + unsigned i2cintr:1; + unsigned erlysuspend:1; + unsigned usbsuspend:1; + unsigned usbreset:1; + unsigned enumdone:1; + unsigned isooutdrop:1; + unsigned eopframe:1; + unsigned restoredone:1; + unsigned epmismatch:1; + unsigned inepint:1; + unsigned outepintr:1; + unsigned incomplisoin:1; + unsigned incomplisoout:1; + unsigned fetsusp:1; + unsigned resetdet:1; + unsigned portintr:1; + unsigned hcintr:1; + unsigned ptxfempty:1; + unsigned lpmtranrcvd:1; + unsigned conidstschng:1; + unsigned disconnect:1; + unsigned sessreqintr:1; + unsigned wkupintr:1; + } b; +} gintsts_data_t; + +/** + * This union represents the bit fields in the Device Receive Status Read and + * Pop Registers (GRXSTSR, GRXSTSP) Read the register into the d32 + * element then read out the bits using the bit elements. + */ +typedef union device_grxsts_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + unsigned epnum:4; + unsigned bcnt:11; + unsigned dpid:2; + +#define DWC_STS_DATA_UPDT 0x2 // OUT Data Packet +#define DWC_STS_XFER_COMP 0x3 // OUT Data Transfer Complete + +#define DWC_DSTS_GOUT_NAK 0x1 // Global OUT NAK +#define DWC_DSTS_SETUP_COMP 0x4 // Setup Phase Complete +#define DWC_DSTS_SETUP_UPDT 0x6 // SETUP Packet + unsigned pktsts:4; + unsigned fn:4; + unsigned reserved25_31:7; + } b; +} device_grxsts_data_t; + +/** + * This union represents the bit fields in the Host Receive Status Read and + * Pop Registers (GRXSTSR, GRXSTSP) Read the register into the d32 + * element then read out the bits using the bit elements. + */ +typedef union host_grxsts_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + unsigned chnum:4; + unsigned bcnt:11; + unsigned dpid:2; + + unsigned pktsts:4; +#define DWC_GRXSTS_PKTSTS_IN 0x2 +#define DWC_GRXSTS_PKTSTS_IN_XFER_COMP 0x3 +#define DWC_GRXSTS_PKTSTS_DATA_TOGGLE_ERR 0x5 +#define DWC_GRXSTS_PKTSTS_CH_HALTED 0x7 + + unsigned reserved21_31:11; + } b; +} host_grxsts_data_t; + +/** + * This union represents the bit fields in the FIFO Size Registers (HPTXFSIZ, + * GNPTXFSIZ, DPTXFSIZn, DIEPTXFn). Read the register into the d32 element + * then read out the bits using the bit elements. + */ +typedef union fifosize_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + unsigned startaddr:16; + unsigned depth:16; + } b; +} fifosize_data_t; + +/** + * This union represents the bit fields in the Non-Periodic Transmit + * FIFO/Queue Status Register (GNPTXSTS). Read the register into the + * d32 element then read out the bits using the bit + * elements. + */ +typedef union gnptxsts_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + unsigned nptxfspcavail:16; + unsigned nptxqspcavail:8; + /** Top of the Non-Periodic Transmit Request Queue + * - bit 24 - Terminate (Last entry for the selected + * channel/EP) + * - bits 26:25 - Token Type + * - 2'b00 - IN/OUT + * - 2'b01 - Zero Length OUT + * - 2'b10 - PING/Complete Split + * - 2'b11 - Channel Halt + * - bits 30:27 - Channel/EP Number + */ + unsigned nptxqtop_terminate:1; + unsigned nptxqtop_token:2; + unsigned nptxqtop_chnep:4; + unsigned reserved:1; + } b; +} gnptxsts_data_t; + +/** + * This union represents the bit fields in the Transmit + * FIFO Status Register (DTXFSTS). Read the register into the + * d32 element then read out the bits using the bit + * elements. + */ +typedef union dtxfsts_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + unsigned txfspcavail:16; + unsigned reserved:16; + } b; +} dtxfsts_data_t; + +/** + * This union represents the bit fields in the I2C Control Register + * (I2CCTL). Read the register into the d32 element then read out the + * bits using the bit elements. + */ +typedef union gi2cctl_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + unsigned rwdata:8; + unsigned regaddr:8; + unsigned addr:7; + unsigned i2cen:1; + unsigned ack:1; + unsigned i2csuspctl:1; + unsigned i2cdevaddr:2; + unsigned i2cdatse0:1; + unsigned reserved:1; + unsigned rw:1; + unsigned bsydne:1; + } b; +} gi2cctl_data_t; + +/** + * This union represents the bit fields in the PHY Vendor Control Register + * (GPVNDCTL). Read the register into the d32 element then read out the + * bits using the bit elements. + */ +typedef union gpvndctl_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + unsigned regdata:8; + unsigned vctrl:8; + unsigned regaddr16_21:6; + unsigned regwr:1; + unsigned reserved23_24:2; + unsigned newregreq:1; + unsigned vstsbsy:1; + unsigned vstsdone:1; + unsigned reserved28_30:3; + unsigned disulpidrvr:1; + } b; +} gpvndctl_data_t; + +/** + * This union represents the bit fields in the General Purpose + * Input/Output Register (GGPIO). + * Read the register into the d32 element then read out the + * bits using the bit elements. + */ +typedef union ggpio_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + unsigned gpi:16; + unsigned gpo:16; + } b; +} ggpio_data_t; + +/** + * This union represents the bit fields in the User ID Register + * (GUID). Read the register into the d32 element then read out the + * bits using the bit elements. + */ +typedef union guid_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + unsigned rwdata:32; + } b; +} guid_data_t; + +/** + * This union represents the bit fields in the Synopsys ID Register + * (GSNPSID). Read the register into the d32 element then read out the + * bits using the bit elements. + */ +typedef union gsnpsid_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + unsigned rwdata:32; + } b; +} gsnpsid_data_t; + +/** + * This union represents the bit fields in the User HW Config1 + * Register. Read the register into the d32 element then read + * out the bits using the bit elements. + */ +typedef union hwcfg1_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + unsigned ep_dir0:2; + unsigned ep_dir1:2; + unsigned ep_dir2:2; + unsigned ep_dir3:2; + unsigned ep_dir4:2; + unsigned ep_dir5:2; + unsigned ep_dir6:2; + unsigned ep_dir7:2; + unsigned ep_dir8:2; + unsigned ep_dir9:2; + unsigned ep_dir10:2; + unsigned ep_dir11:2; + unsigned ep_dir12:2; + unsigned ep_dir13:2; + unsigned ep_dir14:2; + unsigned ep_dir15:2; + } b; +} hwcfg1_data_t; + +/** + * This union represents the bit fields in the User HW Config2 + * Register. Read the register into the d32 element then read + * out the bits using the bit elements. + */ +typedef union hwcfg2_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + /* GHWCFG2 */ + unsigned op_mode:3; +#define DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG 0 +#define DWC_HWCFG2_OP_MODE_SRP_ONLY_CAPABLE_OTG 1 +#define DWC_HWCFG2_OP_MODE_NO_HNP_SRP_CAPABLE_OTG 2 +#define DWC_HWCFG2_OP_MODE_SRP_CAPABLE_DEVICE 3 +#define DWC_HWCFG2_OP_MODE_NO_SRP_CAPABLE_DEVICE 4 +#define DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST 5 +#define DWC_HWCFG2_OP_MODE_NO_SRP_CAPABLE_HOST 6 + + unsigned architecture:2; + unsigned point2point:1; + unsigned hs_phy_type:2; +#define DWC_HWCFG2_HS_PHY_TYPE_NOT_SUPPORTED 0 +#define DWC_HWCFG2_HS_PHY_TYPE_UTMI 1 +#define DWC_HWCFG2_HS_PHY_TYPE_ULPI 2 +#define DWC_HWCFG2_HS_PHY_TYPE_UTMI_ULPI 3 + + unsigned fs_phy_type:2; + unsigned num_dev_ep:4; + unsigned num_host_chan:4; + unsigned perio_ep_supported:1; + unsigned dynamic_fifo:1; + unsigned multi_proc_int:1; + unsigned reserved21:1; + unsigned nonperio_tx_q_depth:2; + unsigned host_perio_tx_q_depth:2; + unsigned dev_token_q_depth:5; + unsigned otg_enable_ic_usb:1; + } b; +} hwcfg2_data_t; + +/** + * This union represents the bit fields in the User HW Config3 + * Register. Read the register into the d32 element then read + * out the bits using the bit elements. + */ +typedef union hwcfg3_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + /* GHWCFG3 */ + unsigned xfer_size_cntr_width:4; + unsigned packet_size_cntr_width:3; + unsigned otg_func:1; + unsigned i2c:1; + unsigned vendor_ctrl_if:1; + unsigned optional_features:1; + unsigned synch_reset_type:1; + unsigned adp_supp:1; + unsigned otg_enable_hsic:1; + unsigned bc_support:1; + unsigned otg_lpm_en:1; + unsigned dfifo_depth:16; + } b; +} hwcfg3_data_t; + +/** + * This union represents the bit fields in the User HW Config4 + * Register. Read the register into the d32 element then read + * out the bits using the bit elements. + */ +typedef union hwcfg4_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + unsigned num_dev_perio_in_ep:4; + unsigned power_optimiz:1; + unsigned min_ahb_freq:1; + unsigned hiber:1; + unsigned xhiber:1; + unsigned reserved:6; + unsigned utmi_phy_data_width:2; + unsigned num_dev_mode_ctrl_ep:4; + unsigned iddig_filt_en:1; + unsigned vbus_valid_filt_en:1; + unsigned a_valid_filt_en:1; + unsigned b_valid_filt_en:1; + unsigned session_end_filt_en:1; + unsigned ded_fifo_en:1; + unsigned num_in_eps:4; + unsigned desc_dma:1; + unsigned desc_dma_dyn:1; + } b; +} hwcfg4_data_t; + +/** + * This union represents the bit fields of the Core LPM Configuration + * Register (GLPMCFG). Set the bits using bit fields then write + * the d32 value to the register. + */ +typedef union glpmctl_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + /** LPM-Capable (LPMCap) (Device and Host) + * The application uses this bit to control + * the DWC_otg core LPM capabilities. + */ + unsigned lpm_cap_en:1; + /** LPM response programmed by application (AppL1Res) (Device) + * Handshake response to LPM token pre-programmed + * by device application software. + */ + unsigned appl_resp:1; + /** Host Initiated Resume Duration (HIRD) (Device and Host) + * In Host mode this field indicates the value of HIRD + * to be sent in an LPM transaction. + * In Device mode this field is updated with the + * Received LPM Token HIRD bmAttribute + * when an ACK/NYET/STALL response is sent + * to an LPM transaction. + */ + unsigned hird:4; + /** RemoteWakeEnable (bRemoteWake) (Device and Host) + * In Host mode this bit indicates the value of remote + * wake up to be sent in wIndex field of LPM transaction. + * In Device mode this field is updated with the + * Received LPM Token bRemoteWake bmAttribute + * when an ACK/NYET/STALL response is sent + * to an LPM transaction. + */ + unsigned rem_wkup_en:1; + /** Enable utmi_sleep_n (EnblSlpM) (Device and Host) + * The application uses this bit to control + * the utmi_sleep_n assertion to the PHY when in L1 state. + */ + unsigned en_utmi_sleep:1; + /** HIRD Threshold (HIRD_Thres) (Device and Host) + */ + unsigned hird_thres:5; + /** LPM Response (CoreL1Res) (Device and Host) + * In Host mode this bit contains handsake response to + * LPM transaction. + * In Device mode the response of the core to + * LPM transaction received is reflected in these two bits. + - 0x0 : ERROR (No handshake response) + - 0x1 : STALL + - 0x2 : NYET + - 0x3 : ACK + */ + unsigned lpm_resp:2; + /** Port Sleep Status (SlpSts) (Device and Host) + * This bit is set as long as a Sleep condition + * is present on the USB bus. + */ + unsigned prt_sleep_sts:1; + /** Sleep State Resume OK (L1ResumeOK) (Device and Host) + * Indicates that the application or host + * can start resume from Sleep state. + */ + unsigned sleep_state_resumeok:1; + /** LPM channel Index (LPM_Chnl_Indx) (Host) + * The channel number on which the LPM transaction + * has to be applied while sending + * an LPM transaction to the local device. + */ + unsigned lpm_chan_index:4; + /** LPM Retry Count (LPM_Retry_Cnt) (Host) + * Number host retries that would be performed + * if the device response was not valid response. + */ + unsigned retry_count:3; + /** Send LPM Transaction (SndLPM) (Host) + * When set by application software, + * an LPM transaction containing two tokens + * is sent. + */ + unsigned send_lpm:1; + /** LPM Retry status (LPM_RetryCnt_Sts) (Host) + * Number of LPM Host Retries still remaining + * to be transmitted for the current LPM sequence + */ + unsigned retry_count_sts:3; + unsigned reserved28_29:2; + /** In host mode once this bit is set, the host + * configures to drive the HSIC Idle state on the bus. + * It then waits for the device to initiate the Connect sequence. + * In device mode once this bit is set, the device waits for + * the HSIC Idle line state on the bus. Upon receving the Idle + * line state, it initiates the HSIC Connect sequence. + */ + unsigned hsic_connect:1; + /** This bit overrides and functionally inverts + * the if_select_hsic input port signal. + */ + unsigned inv_sel_hsic:1; + } b; +} glpmcfg_data_t; + +/** + * This union represents the bit fields of the Core ADP Timer, Control and + * Status Register (ADPTIMCTLSTS). Set the bits using bit fields then write + * the d32 value to the register. + */ +typedef union adpctl_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + /** Probe Discharge (PRB_DSCHG) + * These bits set the times for TADP_DSCHG. + * These bits are defined as follows: + * 2'b00 - 4 msec + * 2'b01 - 8 msec + * 2'b10 - 16 msec + * 2'b11 - 32 msec + */ + unsigned prb_dschg:2; + /** Probe Delta (PRB_DELTA) + * These bits set the resolution for RTIM value. + * The bits are defined in units of 32 kHz clock cycles as follows: + * 2'b00 - 1 cycles + * 2'b01 - 2 cycles + * 2'b10 - 3 cycles + * 2'b11 - 4 cycles + * For example if this value is chosen to 2'b01, it means that RTIM + * increments for every 3(three) 32Khz clock cycles. + */ + unsigned prb_delta:2; + /** Probe Period (PRB_PER) + * These bits sets the TADP_PRD as shown in Figure 4 as follows: + * 2'b00 - 0.625 to 0.925 sec (typical 0.775 sec) + * 2'b01 - 1.25 to 1.85 sec (typical 1.55 sec) + * 2'b10 - 1.9 to 2.6 sec (typical 2.275 sec) + * 2'b11 - Reserved + */ + unsigned prb_per:2; + /** These bits capture the latest time it took for VBUS to ramp from + * VADP_SINK to VADP_PRB. + * 0x000 - 1 cycles + * 0x001 - 2 cycles + * 0x002 - 3 cycles + * etc + * 0x7FF - 2048 cycles + * A time of 1024 cycles at 32 kHz corresponds to a time of 32 msec. + */ + unsigned rtim:11; + /** Enable Probe (EnaPrb) + * When programmed to 1'b1, the core performs a probe operation. + * This bit is valid only if OTG_Ver = 1'b1. + */ + unsigned enaprb:1; + /** Enable Sense (EnaSns) + * When programmed to 1'b1, the core performs a Sense operation. + * This bit is valid only if OTG_Ver = 1'b1. + */ + unsigned enasns:1; + /** ADP Reset (ADPRes) + * When set, ADP controller is reset. + * This bit is valid only if OTG_Ver = 1'b1. + */ + unsigned adpres:1; + /** ADP Enable (ADPEn) + * When set, the core performs either ADP probing or sensing + * based on EnaPrb or EnaSns. + * This bit is valid only if OTG_Ver = 1'b1. + */ + unsigned adpen:1; + /** ADP Probe Interrupt (ADP_PRB_INT) + * When this bit is set, it means that the VBUS + * voltage is greater than VADP_PRB or VADP_PRB is reached. + * This bit is valid only if OTG_Ver = 1'b1. + */ + unsigned adp_prb_int:1; + /** + * ADP Sense Interrupt (ADP_SNS_INT) + * When this bit is set, it means that the VBUS voltage is greater than + * VADP_SNS value or VADP_SNS is reached. + * This bit is valid only if OTG_Ver = 1'b1. + */ + unsigned adp_sns_int:1; + /** ADP Tomeout Interrupt (ADP_TMOUT_INT) + * This bit is relevant only for an ADP probe. + * When this bit is set, it means that the ramp time has + * completed ie ADPCTL.RTIM has reached its terminal value + * of 0x7FF. This is a debug feature that allows software + * to read the ramp time after each cycle. + * This bit is valid only if OTG_Ver = 1'b1. + */ + unsigned adp_tmout_int:1; + /** ADP Probe Interrupt Mask (ADP_PRB_INT_MSK) + * When this bit is set, it unmasks the interrupt due to ADP_PRB_INT. + * This bit is valid only if OTG_Ver = 1'b1. + */ + unsigned adp_prb_int_msk:1; + /** ADP Sense Interrupt Mask (ADP_SNS_INT_MSK) + * When this bit is set, it unmasks the interrupt due to ADP_SNS_INT. + * This bit is valid only if OTG_Ver = 1'b1. + */ + unsigned adp_sns_int_msk:1; + /** ADP Timoeout Interrupt Mask (ADP_TMOUT_MSK) + * When this bit is set, it unmasks the interrupt due to ADP_TMOUT_INT. + * This bit is valid only if OTG_Ver = 1'b1. + */ + unsigned adp_tmout_int_msk:1; + /** Access Request + * 2'b00 - Read/Write Valid (updated by the core) + * 2'b01 - Read + * 2'b00 - Write + * 2'b00 - Reserved + */ + unsigned ar:2; + /** Reserved */ + unsigned reserved29_31:3; + } b; +} adpctl_data_t; + +//////////////////////////////////////////// +// Device Registers +/** + * Device Global Registers. Offsets 800h-BFFh + * + * The following structures define the size and relative field offsets + * for the Device Mode Registers. + * + * These registers are visible only in Device mode and must not be + * accessed in Host mode, as the results are unknown. + */ +typedef struct dwc_otg_dev_global_regs { + /** Device Configuration Register. Offset 800h */ + volatile uint32_t dcfg; + /** Device Control Register. Offset: 804h */ + volatile uint32_t dctl; + /** Device Status Register (Read Only). Offset: 808h */ + volatile uint32_t dsts; + /** Reserved. Offset: 80Ch */ + uint32_t unused; + /** Device IN Endpoint Common Interrupt Mask + * Register. Offset: 810h */ + volatile uint32_t diepmsk; + /** Device OUT Endpoint Common Interrupt Mask + * Register. Offset: 814h */ + volatile uint32_t doepmsk; + /** Device All Endpoints Interrupt Register. Offset: 818h */ + volatile uint32_t daint; + /** Device All Endpoints Interrupt Mask Register. Offset: + * 81Ch */ + volatile uint32_t daintmsk; + /** Device IN Token Queue Read Register-1 (Read Only). + * Offset: 820h */ + volatile uint32_t dtknqr1; + /** Device IN Token Queue Read Register-2 (Read Only). + * Offset: 824h */ + volatile uint32_t dtknqr2; + /** Device VBUS discharge Register. Offset: 828h */ + volatile uint32_t dvbusdis; + /** Device VBUS Pulse Register. Offset: 82Ch */ + volatile uint32_t dvbuspulse; + /** Device IN Token Queue Read Register-3 (Read Only). / + * Device Thresholding control register (Read/Write) + * Offset: 830h */ + volatile uint32_t dtknqr3_dthrctl; + /** Device IN Token Queue Read Register-4 (Read Only). / + * Device IN EPs empty Inr. Mask Register (Read/Write) + * Offset: 834h */ + volatile uint32_t dtknqr4_fifoemptymsk; + /** Device Each Endpoint Interrupt Register (Read Only). / + * Offset: 838h */ + volatile uint32_t deachint; + /** Device Each Endpoint Interrupt mask Register (Read/Write). / + * Offset: 83Ch */ + volatile uint32_t deachintmsk; + /** Device Each In Endpoint Interrupt mask Register (Read/Write). / + * Offset: 840h */ + volatile uint32_t diepeachintmsk[MAX_EPS_CHANNELS]; + /** Device Each Out Endpoint Interrupt mask Register (Read/Write). / + * Offset: 880h */ + volatile uint32_t doepeachintmsk[MAX_EPS_CHANNELS]; +} dwc_otg_device_global_regs_t; + +/** + * This union represents the bit fields in the Device Configuration + * Register. Read the register into the d32 member then + * set/clear the bits using the bit elements. Write the + * d32 member to the dcfg register. + */ +typedef union dcfg_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + /** Device Speed */ + unsigned devspd:2; + /** Non Zero Length Status OUT Handshake */ + unsigned nzstsouthshk:1; +#define DWC_DCFG_SEND_STALL 1 + + unsigned ena32khzs:1; + /** Device Addresses */ + unsigned devaddr:7; + /** Periodic Frame Interval */ + unsigned perfrint:2; +#define DWC_DCFG_FRAME_INTERVAL_80 0 +#define DWC_DCFG_FRAME_INTERVAL_85 1 +#define DWC_DCFG_FRAME_INTERVAL_90 2 +#define DWC_DCFG_FRAME_INTERVAL_95 3 + + /** Enable Device OUT NAK for bulk in DDMA mode */ + unsigned endevoutnak:1; + + unsigned reserved14_17:4; + /** In Endpoint Mis-match count */ + unsigned epmscnt:5; + /** Enable Descriptor DMA in Device mode */ + unsigned descdma:1; + unsigned perschintvl:2; + unsigned resvalid:6; + } b; +} dcfg_data_t; + +/** + * This union represents the bit fields in the Device Control + * Register. Read the register into the d32 member then + * set/clear the bits using the bit elements. + */ +typedef union dctl_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + /** Remote Wakeup */ + unsigned rmtwkupsig:1; + /** Soft Disconnect */ + unsigned sftdiscon:1; + /** Global Non-Periodic IN NAK Status */ + unsigned gnpinnaksts:1; + /** Global OUT NAK Status */ + unsigned goutnaksts:1; + /** Test Control */ + unsigned tstctl:3; + /** Set Global Non-Periodic IN NAK */ + unsigned sgnpinnak:1; + /** Clear Global Non-Periodic IN NAK */ + unsigned cgnpinnak:1; + /** Set Global OUT NAK */ + unsigned sgoutnak:1; + /** Clear Global OUT NAK */ + unsigned cgoutnak:1; + /** Power-On Programming Done */ + unsigned pwronprgdone:1; + /** Reserved */ + unsigned reserved:1; + /** Global Multi Count */ + unsigned gmc:2; + /** Ignore Frame Number for ISOC EPs */ + unsigned ifrmnum:1; + /** NAK on Babble */ + unsigned nakonbble:1; + /** Enable Continue on BNA */ + unsigned encontonbna:1; + + unsigned reserved18_31:14; + } b; +} dctl_data_t; + +/** + * This union represents the bit fields in the Device Status + * Register. Read the register into the d32 member then + * set/clear the bits using the bit elements. + */ +typedef union dsts_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + /** Suspend Status */ + unsigned suspsts:1; + /** Enumerated Speed */ + unsigned enumspd:2; +#define DWC_DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ 0 +#define DWC_DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ 1 +#define DWC_DSTS_ENUMSPD_LS_PHY_6MHZ 2 +#define DWC_DSTS_ENUMSPD_FS_PHY_48MHZ 3 + /** Erratic Error */ + unsigned errticerr:1; + unsigned reserved4_7:4; + /** Frame or Microframe Number of the received SOF */ + unsigned soffn:14; + unsigned reserved22_31:10; + } b; +} dsts_data_t; + +/** + * This union represents the bit fields in the Device IN EP Interrupt + * Register and the Device IN EP Common Mask Register. + * + * - Read the register into the d32 member then set/clear the + * bits using the bit elements. + */ +typedef union diepint_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + /** Transfer complete mask */ + unsigned xfercompl:1; + /** Endpoint disable mask */ + unsigned epdisabled:1; + /** AHB Error mask */ + unsigned ahberr:1; + /** TimeOUT Handshake mask (non-ISOC EPs) */ + unsigned timeout:1; + /** IN Token received with TxF Empty mask */ + unsigned intktxfemp:1; + /** IN Token Received with EP mismatch mask */ + unsigned intknepmis:1; + /** IN Endpoint NAK Effective mask */ + unsigned inepnakeff:1; + /** Reserved */ + unsigned emptyintr:1; + + unsigned txfifoundrn:1; + + /** BNA Interrupt mask */ + unsigned bna:1; + + unsigned reserved10_12:3; + /** BNA Interrupt mask */ + unsigned nak:1; + + unsigned reserved14_31:18; + } b; +} diepint_data_t; + +/** + * This union represents the bit fields in the Device IN EP + * Common/Dedicated Interrupt Mask Register. + */ +typedef union diepint_data diepmsk_data_t; + +/** + * This union represents the bit fields in the Device OUT EP Interrupt + * Registerand Device OUT EP Common Interrupt Mask Register. + * + * - Read the register into the d32 member then set/clear the + * bits using the bit elements. + */ +typedef union doepint_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + /** Transfer complete */ + unsigned xfercompl:1; + /** Endpoint disable */ + unsigned epdisabled:1; + /** AHB Error */ + unsigned ahberr:1; + /** Setup Phase Done (contorl EPs) */ + unsigned setup:1; + /** OUT Token Received when Endpoint Disabled */ + unsigned outtknepdis:1; + + unsigned stsphsercvd:1; + /** Back-to-Back SETUP Packets Received */ + unsigned back2backsetup:1; + + unsigned reserved7:1; + /** OUT packet Error */ + unsigned outpkterr:1; + /** BNA Interrupt */ + unsigned bna:1; + + unsigned reserved10:1; + /** Packet Drop Status */ + unsigned pktdrpsts:1; + /** Babble Interrupt */ + unsigned babble:1; + /** NAK Interrupt */ + unsigned nak:1; + /** NYET Interrupt */ + unsigned nyet:1; + /** Bit indicating setup packet received */ + unsigned sr:1; + + unsigned reserved16_31:16; + } b; +} doepint_data_t; + +/** + * This union represents the bit fields in the Device OUT EP + * Common/Dedicated Interrupt Mask Register. + */ +typedef union doepint_data doepmsk_data_t; + +/** + * This union represents the bit fields in the Device All EP Interrupt + * and Mask Registers. + * - Read the register into the d32 member then set/clear the + * bits using the bit elements. + */ +typedef union daint_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + /** IN Endpoint bits */ + unsigned in:16; + /** OUT Endpoint bits */ + unsigned out:16; + } ep; + struct { + /** IN Endpoint bits */ + unsigned inep0:1; + unsigned inep1:1; + unsigned inep2:1; + unsigned inep3:1; + unsigned inep4:1; + unsigned inep5:1; + unsigned inep6:1; + unsigned inep7:1; + unsigned inep8:1; + unsigned inep9:1; + unsigned inep10:1; + unsigned inep11:1; + unsigned inep12:1; + unsigned inep13:1; + unsigned inep14:1; + unsigned inep15:1; + /** OUT Endpoint bits */ + unsigned outep0:1; + unsigned outep1:1; + unsigned outep2:1; + unsigned outep3:1; + unsigned outep4:1; + unsigned outep5:1; + unsigned outep6:1; + unsigned outep7:1; + unsigned outep8:1; + unsigned outep9:1; + unsigned outep10:1; + unsigned outep11:1; + unsigned outep12:1; + unsigned outep13:1; + unsigned outep14:1; + unsigned outep15:1; + } b; +} daint_data_t; + +/** + * This union represents the bit fields in the Device IN Token Queue + * Read Registers. + * - Read the register into the d32 member. + * - READ-ONLY Register + */ +typedef union dtknq1_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + /** In Token Queue Write Pointer */ + unsigned intknwptr:5; + /** Reserved */ + unsigned reserved05_06:2; + /** write pointer has wrapped. */ + unsigned wrap_bit:1; + /** EP Numbers of IN Tokens 0 ... 4 */ + unsigned epnums0_5:24; + } b; +} dtknq1_data_t; + +/** + * This union represents Threshold control Register + * - Read and write the register into the d32 member. + * - READ-WRITABLE Register + */ +typedef union dthrctl_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + /** non ISO Tx Thr. Enable */ + unsigned non_iso_thr_en:1; + /** ISO Tx Thr. Enable */ + unsigned iso_thr_en:1; + /** Tx Thr. Length */ + unsigned tx_thr_len:9; + /** AHB Threshold ratio */ + unsigned ahb_thr_ratio:2; + /** Reserved */ + unsigned reserved13_15:3; + /** Rx Thr. Enable */ + unsigned rx_thr_en:1; + /** Rx Thr. Length */ + unsigned rx_thr_len:9; + unsigned reserved26:1; + /** Arbiter Parking Enable*/ + unsigned arbprken:1; + /** Reserved */ + unsigned reserved28_31:4; + } b; +} dthrctl_data_t; + +/** + * Device Logical IN Endpoint-Specific Registers. Offsets + * 900h-AFCh + * + * There will be one set of endpoint registers per logical endpoint + * implemented. + * + * These registers are visible only in Device mode and must not be + * accessed in Host mode, as the results are unknown. + */ +typedef struct dwc_otg_dev_in_ep_regs { + /** Device IN Endpoint Control Register. Offset:900h + + * (ep_num * 20h) + 00h */ + volatile uint32_t diepctl; + /** Reserved. Offset:900h + (ep_num * 20h) + 04h */ + uint32_t reserved04; + /** Device IN Endpoint Interrupt Register. Offset:900h + + * (ep_num * 20h) + 08h */ + volatile uint32_t diepint; + /** Reserved. Offset:900h + (ep_num * 20h) + 0Ch */ + uint32_t reserved0C; + /** Device IN Endpoint Transfer Size + * Register. Offset:900h + (ep_num * 20h) + 10h */ + volatile uint32_t dieptsiz; + /** Device IN Endpoint DMA Address Register. Offset:900h + + * (ep_num * 20h) + 14h */ + volatile uint32_t diepdma; + /** Device IN Endpoint Transmit FIFO Status Register. Offset:900h + + * (ep_num * 20h) + 18h */ + volatile uint32_t dtxfsts; + /** Device IN Endpoint DMA Buffer Register. Offset:900h + + * (ep_num * 20h) + 1Ch */ + volatile uint32_t diepdmab; +} dwc_otg_dev_in_ep_regs_t; + +/** + * Device Logical OUT Endpoint-Specific Registers. Offsets: + * B00h-CFCh + * + * There will be one set of endpoint registers per logical endpoint + * implemented. + * + * These registers are visible only in Device mode and must not be + * accessed in Host mode, as the results are unknown. + */ +typedef struct dwc_otg_dev_out_ep_regs { + /** Device OUT Endpoint Control Register. Offset:B00h + + * (ep_num * 20h) + 00h */ + volatile uint32_t doepctl; + /** Reserved. Offset:B00h + (ep_num * 20h) + 04h */ + uint32_t reserved04; + /** Device OUT Endpoint Interrupt Register. Offset:B00h + + * (ep_num * 20h) + 08h */ + volatile uint32_t doepint; + /** Reserved. Offset:B00h + (ep_num * 20h) + 0Ch */ + uint32_t reserved0C; + /** Device OUT Endpoint Transfer Size Register. Offset: + * B00h + (ep_num * 20h) + 10h */ + volatile uint32_t doeptsiz; + /** Device OUT Endpoint DMA Address Register. Offset:B00h + * + (ep_num * 20h) + 14h */ + volatile uint32_t doepdma; + /** Reserved. Offset:B00h + * (ep_num * 20h) + 18h */ + uint32_t unused; + /** Device OUT Endpoint DMA Buffer Register. Offset:B00h + * + (ep_num * 20h) + 1Ch */ + uint32_t doepdmab; +} dwc_otg_dev_out_ep_regs_t; + +/** + * This union represents the bit fields in the Device EP Control + * Register. Read the register into the d32 member then + * set/clear the bits using the bit elements. + */ +typedef union depctl_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + /** Maximum Packet Size + * IN/OUT EPn + * IN/OUT EP0 - 2 bits + * 2'b00: 64 Bytes + * 2'b01: 32 + * 2'b10: 16 + * 2'b11: 8 */ + unsigned mps:11; +#define DWC_DEP0CTL_MPS_64 0 +#define DWC_DEP0CTL_MPS_32 1 +#define DWC_DEP0CTL_MPS_16 2 +#define DWC_DEP0CTL_MPS_8 3 + + /** Next Endpoint + * IN EPn/IN EP0 + * OUT EPn/OUT EP0 - reserved */ + unsigned nextep:4; + + /** USB Active Endpoint */ + unsigned usbactep:1; + + /** Endpoint DPID (INTR/Bulk IN and OUT endpoints) + * This field contains the PID of the packet going to + * be received or transmitted on this endpoint. The + * application should program the PID of the first + * packet going to be received or transmitted on this + * endpoint , after the endpoint is + * activated. Application use the SetD1PID and + * SetD0PID fields of this register to program either + * D0 or D1 PID. + * + * The encoding for this field is + * - 0: D0 + * - 1: D1 + */ + unsigned dpid:1; + + /** NAK Status */ + unsigned naksts:1; + + /** Endpoint Type + * 2'b00: Control + * 2'b01: Isochronous + * 2'b10: Bulk + * 2'b11: Interrupt */ + unsigned eptype:2; + + /** Snoop Mode + * OUT EPn/OUT EP0 + * IN EPn/IN EP0 - reserved */ + unsigned snp:1; + + /** Stall Handshake */ + unsigned stall:1; + + /** Tx Fifo Number + * IN EPn/IN EP0 + * OUT EPn/OUT EP0 - reserved */ + unsigned txfnum:4; + + /** Clear NAK */ + unsigned cnak:1; + /** Set NAK */ + unsigned snak:1; + /** Set DATA0 PID (INTR/Bulk IN and OUT endpoints) + * Writing to this field sets the Endpoint DPID (DPID) + * field in this register to DATA0. Set Even + * (micro)frame (SetEvenFr) (ISO IN and OUT Endpoints) + * Writing to this field sets the Even/Odd + * (micro)frame (EO_FrNum) field to even (micro) + * frame. + */ + unsigned setd0pid:1; + /** Set DATA1 PID (INTR/Bulk IN and OUT endpoints) + * Writing to this field sets the Endpoint DPID (DPID) + * field in this register to DATA1 Set Odd + * (micro)frame (SetOddFr) (ISO IN and OUT Endpoints) + * Writing to this field sets the Even/Odd + * (micro)frame (EO_FrNum) field to odd (micro) frame. + */ + unsigned setd1pid:1; + + /** Endpoint Disable */ + unsigned epdis:1; + /** Endpoint Enable */ + unsigned epena:1; + } b; +} depctl_data_t; + +/** + * This union represents the bit fields in the Device EP Transfer + * Size Register. Read the register into the d32 member then + * set/clear the bits using the bit elements. + */ +typedef union deptsiz_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + /** Transfer size */ + unsigned xfersize:19; +/** Max packet count for EP (pow(2,10)-1) */ +#define MAX_PKT_CNT 1023 + /** Packet Count */ + unsigned pktcnt:10; + /** Multi Count - Periodic IN endpoints */ + unsigned mc:2; + unsigned reserved:1; + } b; +} deptsiz_data_t; + +/** + * This union represents the bit fields in the Device EP 0 Transfer + * Size Register. Read the register into the d32 member then + * set/clear the bits using the bit elements. + */ +typedef union deptsiz0_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + /** Transfer size */ + unsigned xfersize:7; + /** Reserved */ + unsigned reserved7_18:12; + /** Packet Count */ + unsigned pktcnt:2; + /** Reserved */ + unsigned reserved21_28:8; + /**Setup Packet Count (DOEPTSIZ0 Only) */ + unsigned supcnt:2; + unsigned reserved31; + } b; +} deptsiz0_data_t; + +///////////////////////////////////////////////// +// DMA Descriptor Specific Structures +// + +/** Buffer status definitions */ + +#define BS_HOST_READY 0x0 +#define BS_DMA_BUSY 0x1 +#define BS_DMA_DONE 0x2 +#define BS_HOST_BUSY 0x3 + +/** Receive/Transmit status definitions */ + +#define RTS_SUCCESS 0x0 +#define RTS_BUFFLUSH 0x1 +#define RTS_RESERVED 0x2 +#define RTS_BUFERR 0x3 + +/** + * This union represents the bit fields in the DMA Descriptor + * status quadlet. Read the quadlet into the d32 member then + * set/clear the bits using the bit, b_iso_out and + * b_iso_in elements. + */ +typedef union dev_dma_desc_sts { + /** raw register data */ + uint32_t d32; + /** quadlet bits */ + struct { + /** Received number of bytes */ + unsigned bytes:16; + /** NAK bit - only for OUT EPs */ + unsigned nak:1; + unsigned reserved17_22:6; + /** Multiple Transfer - only for OUT EPs */ + unsigned mtrf:1; + /** Setup Packet received - only for OUT EPs */ + unsigned sr:1; + /** Interrupt On Complete */ + unsigned ioc:1; + /** Short Packet */ + unsigned sp:1; + /** Last */ + unsigned l:1; + /** Receive Status */ + unsigned sts:2; + /** Buffer Status */ + unsigned bs:2; + } b; + +//#ifdef DWC_EN_ISOC + /** iso out quadlet bits */ + struct { + /** Received number of bytes */ + unsigned rxbytes:11; + + unsigned reserved11:1; + /** Frame Number */ + unsigned framenum:11; + /** Received ISO Data PID */ + unsigned pid:2; + /** Interrupt On Complete */ + unsigned ioc:1; + /** Short Packet */ + unsigned sp:1; + /** Last */ + unsigned l:1; + /** Receive Status */ + unsigned rxsts:2; + /** Buffer Status */ + unsigned bs:2; + } b_iso_out; + + /** iso in quadlet bits */ + struct { + /** Transmited number of bytes */ + unsigned txbytes:12; + /** Frame Number */ + unsigned framenum:11; + /** Transmited ISO Data PID */ + unsigned pid:2; + /** Interrupt On Complete */ + unsigned ioc:1; + /** Short Packet */ + unsigned sp:1; + /** Last */ + unsigned l:1; + /** Transmit Status */ + unsigned txsts:2; + /** Buffer Status */ + unsigned bs:2; + } b_iso_in; +//#endif /* DWC_EN_ISOC */ +} dev_dma_desc_sts_t; + +/** + * DMA Descriptor structure + * + * DMA Descriptor structure contains two quadlets: + * Status quadlet and Data buffer pointer. + */ +typedef struct dwc_otg_dev_dma_desc { + /** DMA Descriptor status quadlet */ + dev_dma_desc_sts_t status; + /** DMA Descriptor data buffer pointer */ + uint32_t buf; +} dwc_otg_dev_dma_desc_t; + +/** + * The dwc_otg_dev_if structure contains information needed to manage + * the DWC_otg controller acting in device mode. It represents the + * programming view of the device-specific aspects of the controller. + */ +typedef struct dwc_otg_dev_if { + /** Pointer to device Global registers. + * Device Global Registers starting at offset 800h + */ + dwc_otg_device_global_regs_t *dev_global_regs; +#define DWC_DEV_GLOBAL_REG_OFFSET 0x800 + + /** + * Device Logical IN Endpoint-Specific Registers 900h-AFCh + */ + dwc_otg_dev_in_ep_regs_t *in_ep_regs[MAX_EPS_CHANNELS]; +#define DWC_DEV_IN_EP_REG_OFFSET 0x900 +#define DWC_EP_REG_OFFSET 0x20 + + /** Device Logical OUT Endpoint-Specific Registers B00h-CFCh */ + dwc_otg_dev_out_ep_regs_t *out_ep_regs[MAX_EPS_CHANNELS]; +#define DWC_DEV_OUT_EP_REG_OFFSET 0xB00 + + /* Device configuration information */ + uint8_t speed; /**< Device Speed 0: Unknown, 1: LS, 2:FS, 3: HS */ + uint8_t num_in_eps; /**< Number # of Tx EP range: 0-15 exept ep0 */ + uint8_t num_out_eps; /**< Number # of Rx EP range: 0-15 exept ep 0*/ + + /** Size of periodic FIFOs (Bytes) */ + uint16_t perio_tx_fifo_size[MAX_PERIO_FIFOS]; + + /** Size of Tx FIFOs (Bytes) */ + uint16_t tx_fifo_size[MAX_TX_FIFOS]; + + /** Thresholding enable flags and length varaiables **/ + uint16_t rx_thr_en; + uint16_t iso_tx_thr_en; + uint16_t non_iso_tx_thr_en; + + uint16_t rx_thr_length; + uint16_t tx_thr_length; + + /** + * Pointers to the DMA Descriptors for EP0 Control + * transfers (virtual and physical) + */ + + /** 2 descriptors for SETUP packets */ + dwc_dma_t dma_setup_desc_addr[2]; + dwc_otg_dev_dma_desc_t *setup_desc_addr[2]; + + /** Pointer to Descriptor with latest SETUP packet */ + dwc_otg_dev_dma_desc_t *psetup; + + /** Index of current SETUP handler descriptor */ + uint32_t setup_desc_index; + + /** Descriptor for Data In or Status In phases */ + dwc_dma_t dma_in_desc_addr; + dwc_otg_dev_dma_desc_t *in_desc_addr; + + /** Descriptor for Data Out or Status Out phases */ + dwc_dma_t dma_out_desc_addr; + dwc_otg_dev_dma_desc_t *out_desc_addr; + + /** Setup Packet Detected - if set clear NAK when queueing */ + uint32_t spd; + /** Isoc ep pointer on which incomplete happens */ + void *isoc_ep; + +} dwc_otg_dev_if_t; + +///////////////////////////////////////////////// +// Host Mode Register Structures +// +/** + * The Host Global Registers structure defines the size and relative + * field offsets for the Host Mode Global Registers. Host Global + * Registers offsets 400h-7FFh. +*/ +typedef struct dwc_otg_host_global_regs { + /** Host Configuration Register. Offset: 400h */ + volatile uint32_t hcfg; + /** Host Frame Interval Register. Offset: 404h */ + volatile uint32_t hfir; + /** Host Frame Number / Frame Remaining Register. Offset: 408h */ + volatile uint32_t hfnum; + /** Reserved. Offset: 40Ch */ + uint32_t reserved40C; + /** Host Periodic Transmit FIFO/ Queue Status Register. Offset: 410h */ + volatile uint32_t hptxsts; + /** Host All Channels Interrupt Register. Offset: 414h */ + volatile uint32_t haint; + /** Host All Channels Interrupt Mask Register. Offset: 418h */ + volatile uint32_t haintmsk; + /** Host Frame List Base Address Register . Offset: 41Ch */ + volatile uint32_t hflbaddr; +} dwc_otg_host_global_regs_t; + +/** + * This union represents the bit fields in the Host Configuration Register. + * Read the register into the d32 member then set/clear the bits using + * the bit elements. Write the d32 member to the hcfg register. + */ +typedef union hcfg_data { + /** raw register data */ + uint32_t d32; + + /** register bits */ + struct { + /** FS/LS Phy Clock Select */ + unsigned fslspclksel:2; +#define DWC_HCFG_30_60_MHZ 0 +#define DWC_HCFG_48_MHZ 1 +#define DWC_HCFG_6_MHZ 2 + + /** FS/LS Only Support */ + unsigned fslssupp:1; + unsigned reserved3_6:4; + /** Enable 32-KHz Suspend Mode */ + unsigned ena32khzs:1; + /** Resume Validation Periiod */ + unsigned resvalid:8; + unsigned reserved16_22:7; + /** Enable Scatter/gather DMA in Host mode */ + unsigned descdma:1; + /** Frame List Entries */ + unsigned frlisten:2; + /** Enable Periodic Scheduling */ + unsigned perschedena:1; + unsigned reserved27_30:4; + unsigned modechtimen:1; + } b; +} hcfg_data_t; + +/** + * This union represents the bit fields in the Host Frame Remaing/Number + * Register. + */ +typedef union hfir_data { + /** raw register data */ + uint32_t d32; + + /** register bits */ + struct { + unsigned frint:16; + unsigned hfirrldctrl:1; + unsigned reserved:15; + } b; +} hfir_data_t; + +/** + * This union represents the bit fields in the Host Frame Remaing/Number + * Register. + */ +typedef union hfnum_data { + /** raw register data */ + uint32_t d32; + + /** register bits */ + struct { + unsigned frnum:16; +#define DWC_HFNUM_MAX_FRNUM 0x3FFF + unsigned frrem:16; + } b; +} hfnum_data_t; + +typedef union hptxsts_data { + /** raw register data */ + uint32_t d32; + + /** register bits */ + struct { + unsigned ptxfspcavail:16; + unsigned ptxqspcavail:8; + /** Top of the Periodic Transmit Request Queue + * - bit 24 - Terminate (last entry for the selected channel) + * - bits 26:25 - Token Type + * - 2'b00 - Zero length + * - 2'b01 - Ping + * - 2'b10 - Disable + * - bits 30:27 - Channel Number + * - bit 31 - Odd/even microframe + */ + unsigned ptxqtop_terminate:1; + unsigned ptxqtop_token:2; + unsigned ptxqtop_chnum:4; + unsigned ptxqtop_odd:1; + } b; +} hptxsts_data_t; + +/** + * This union represents the bit fields in the Host Port Control and Status + * Register. Read the register into the d32 member then set/clear the + * bits using the bit elements. Write the d32 member to the + * hprt0 register. + */ +typedef union hprt0_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + unsigned prtconnsts:1; + unsigned prtconndet:1; + unsigned prtena:1; + unsigned prtenchng:1; + unsigned prtovrcurract:1; + unsigned prtovrcurrchng:1; + unsigned prtres:1; + unsigned prtsusp:1; + unsigned prtrst:1; + unsigned reserved9:1; + unsigned prtlnsts:2; + unsigned prtpwr:1; + unsigned prttstctl:4; + unsigned prtspd:2; +#define DWC_HPRT0_PRTSPD_HIGH_SPEED 0 +#define DWC_HPRT0_PRTSPD_FULL_SPEED 1 +#define DWC_HPRT0_PRTSPD_LOW_SPEED 2 + unsigned reserved19_31:13; + } b; +} hprt0_data_t; + +/** + * This union represents the bit fields in the Host All Interrupt + * Register. + */ +typedef union haint_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + unsigned ch0:1; + unsigned ch1:1; + unsigned ch2:1; + unsigned ch3:1; + unsigned ch4:1; + unsigned ch5:1; + unsigned ch6:1; + unsigned ch7:1; + unsigned ch8:1; + unsigned ch9:1; + unsigned ch10:1; + unsigned ch11:1; + unsigned ch12:1; + unsigned ch13:1; + unsigned ch14:1; + unsigned ch15:1; + unsigned reserved:16; + } b; + + struct { + unsigned chint:16; + unsigned reserved:16; + } b2; +} haint_data_t; + +/** + * This union represents the bit fields in the Host All Interrupt + * Register. + */ +typedef union haintmsk_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + unsigned ch0:1; + unsigned ch1:1; + unsigned ch2:1; + unsigned ch3:1; + unsigned ch4:1; + unsigned ch5:1; + unsigned ch6:1; + unsigned ch7:1; + unsigned ch8:1; + unsigned ch9:1; + unsigned ch10:1; + unsigned ch11:1; + unsigned ch12:1; + unsigned ch13:1; + unsigned ch14:1; + unsigned ch15:1; + unsigned reserved:16; + } b; + + struct { + unsigned chint:16; + unsigned reserved:16; + } b2; +} haintmsk_data_t; + +/** + * Host Channel Specific Registers. 500h-5FCh + */ +typedef struct dwc_otg_hc_regs { + /** Host Channel 0 Characteristic Register. Offset: 500h + (chan_num * 20h) + 00h */ + volatile uint32_t hcchar; + /** Host Channel 0 Split Control Register. Offset: 500h + (chan_num * 20h) + 04h */ + volatile uint32_t hcsplt; + /** Host Channel 0 Interrupt Register. Offset: 500h + (chan_num * 20h) + 08h */ + volatile uint32_t hcint; + /** Host Channel 0 Interrupt Mask Register. Offset: 500h + (chan_num * 20h) + 0Ch */ + volatile uint32_t hcintmsk; + /** Host Channel 0 Transfer Size Register. Offset: 500h + (chan_num * 20h) + 10h */ + volatile uint32_t hctsiz; + /** Host Channel 0 DMA Address Register. Offset: 500h + (chan_num * 20h) + 14h */ + volatile uint32_t hcdma; + volatile uint32_t reserved; + /** Host Channel 0 DMA Buffer Address Register. Offset: 500h + (chan_num * 20h) + 1Ch */ + volatile uint32_t hcdmab; +} dwc_otg_hc_regs_t; + +/** + * This union represents the bit fields in the Host Channel Characteristics + * Register. Read the register into the d32 member then set/clear the + * bits using the bit elements. Write the d32 member to the + * hcchar register. + */ +typedef union hcchar_data { + /** raw register data */ + uint32_t d32; + + /** register bits */ + struct { + /** Maximum packet size in bytes */ + unsigned mps:11; + + /** Endpoint number */ + unsigned epnum:4; + + /** 0: OUT, 1: IN */ + unsigned epdir:1; + + unsigned reserved:1; + + /** 0: Full/high speed device, 1: Low speed device */ + unsigned lspddev:1; + + /** 0: Control, 1: Isoc, 2: Bulk, 3: Intr */ + unsigned eptype:2; + + /** Packets per frame for periodic transfers. 0 is reserved. */ + unsigned multicnt:2; + + /** Device address */ + unsigned devaddr:7; + + /** + * Frame to transmit periodic transaction. + * 0: even, 1: odd + */ + unsigned oddfrm:1; + + /** Channel disable */ + unsigned chdis:1; + + /** Channel enable */ + unsigned chen:1; + } b; +} hcchar_data_t; + +typedef union hcsplt_data { + /** raw register data */ + uint32_t d32; + + /** register bits */ + struct { + /** Port Address */ + unsigned prtaddr:7; + + /** Hub Address */ + unsigned hubaddr:7; + + /** Transaction Position */ + unsigned xactpos:2; +#define DWC_HCSPLIT_XACTPOS_MID 0 +#define DWC_HCSPLIT_XACTPOS_END 1 +#define DWC_HCSPLIT_XACTPOS_BEGIN 2 +#define DWC_HCSPLIT_XACTPOS_ALL 3 + + /** Do Complete Split */ + unsigned compsplt:1; + + /** Reserved */ + unsigned reserved:14; + + /** Split Enble */ + unsigned spltena:1; + } b; +} hcsplt_data_t; + +/** + * This union represents the bit fields in the Host All Interrupt + * Register. + */ +typedef union hcint_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + /** Transfer Complete */ + unsigned xfercomp:1; + /** Channel Halted */ + unsigned chhltd:1; + /** AHB Error */ + unsigned ahberr:1; + /** STALL Response Received */ + unsigned stall:1; + /** NAK Response Received */ + unsigned nak:1; + /** ACK Response Received */ + unsigned ack:1; + /** NYET Response Received */ + unsigned nyet:1; + /** Transaction Err */ + unsigned xacterr:1; + /** Babble Error */ + unsigned bblerr:1; + /** Frame Overrun */ + unsigned frmovrun:1; + /** Data Toggle Error */ + unsigned datatglerr:1; + /** Buffer Not Available (only for DDMA mode) */ + unsigned bna:1; + /** Exessive transaction error (only for DDMA mode) */ + unsigned xcs_xact:1; + /** Frame List Rollover interrupt */ + unsigned frm_list_roll:1; + /** Reserved */ + unsigned reserved14_31:18; + } b; +} hcint_data_t; + +/** + * This union represents the bit fields in the Host Channel Interrupt Mask + * Register. Read the register into the d32 member then set/clear the + * bits using the bit elements. Write the d32 member to the + * hcintmsk register. + */ +typedef union hcintmsk_data { + /** raw register data */ + uint32_t d32; + + /** register bits */ + struct { + unsigned xfercompl:1; + unsigned chhltd:1; + unsigned ahberr:1; + unsigned stall:1; + unsigned nak:1; + unsigned ack:1; + unsigned nyet:1; + unsigned xacterr:1; + unsigned bblerr:1; + unsigned frmovrun:1; + unsigned datatglerr:1; + unsigned bna:1; + unsigned xcs_xact:1; + unsigned frm_list_roll:1; + unsigned reserved14_31:18; + } b; +} hcintmsk_data_t; + +/** + * This union represents the bit fields in the Host Channel Transfer Size + * Register. Read the register into the d32 member then set/clear the + * bits using the bit elements. Write the d32 member to the + * hcchar register. + */ + +typedef union hctsiz_data { + /** raw register data */ + uint32_t d32; + + /** register bits */ + struct { + /** Total transfer size in bytes */ + unsigned xfersize:19; + + /** Data packets to transfer */ + unsigned pktcnt:10; + + /** + * Packet ID for next data packet + * 0: DATA0 + * 1: DATA2 + * 2: DATA1 + * 3: MDATA (non-Control), SETUP (Control) + */ + unsigned pid:2; +#define DWC_HCTSIZ_DATA0 0 +#define DWC_HCTSIZ_DATA1 2 +#define DWC_HCTSIZ_DATA2 1 +#define DWC_HCTSIZ_MDATA 3 +#define DWC_HCTSIZ_SETUP 3 + + /** Do PING protocol when 1 */ + unsigned dopng:1; + } b; + + /** register bits */ + struct { + /** Scheduling information */ + unsigned schinfo:8; + + /** Number of transfer descriptors. + * Max value: + * 64 in general, + * 256 only for HS isochronous endpoint. + */ + unsigned ntd:8; + + /** Data packets to transfer */ + unsigned reserved16_28:13; + + /** + * Packet ID for next data packet + * 0: DATA0 + * 1: DATA2 + * 2: DATA1 + * 3: MDATA (non-Control) + */ + unsigned pid:2; + + /** Do PING protocol when 1 */ + unsigned dopng:1; + } b_ddma; +} hctsiz_data_t; + +/** + * This union represents the bit fields in the Host DMA Address + * Register used in Descriptor DMA mode. + */ +typedef union hcdma_data { + /** raw register data */ + uint32_t d32; + /** register bits */ + struct { + unsigned reserved0_2:3; + /** Current Transfer Descriptor. Not used for ISOC */ + unsigned ctd:8; + /** Start Address of Descriptor List */ + unsigned dma_addr:21; + } b; +} hcdma_data_t; + +/** + * This union represents the bit fields in the DMA Descriptor + * status quadlet for host mode. Read the quadlet into the d32 member then + * set/clear the bits using the bit elements. + */ +typedef union host_dma_desc_sts { + /** raw register data */ + uint32_t d32; + /** quadlet bits */ + + /* for non-isochronous */ + struct { + /** Number of bytes */ + unsigned n_bytes:17; + /** QTD offset to jump when Short Packet received - only for IN EPs */ + unsigned qtd_offset:6; + /** + * Set to request the core to jump to alternate QTD if + * Short Packet received - only for IN EPs + */ + unsigned a_qtd:1; + /** + * Setup Packet bit. When set indicates that buffer contains + * setup packet. + */ + unsigned sup:1; + /** Interrupt On Complete */ + unsigned ioc:1; + /** End of List */ + unsigned eol:1; + unsigned reserved27:1; + /** Rx/Tx Status */ + unsigned sts:2; +#define DMA_DESC_STS_PKTERR 1 + unsigned reserved30:1; + /** Active Bit */ + unsigned a:1; + } b; + /* for isochronous */ + struct { + /** Number of bytes */ + unsigned n_bytes:12; + unsigned reserved12_24:13; + /** Interrupt On Complete */ + unsigned ioc:1; + unsigned reserved26_27:2; + /** Rx/Tx Status */ + unsigned sts:2; + unsigned reserved30:1; + /** Active Bit */ + unsigned a:1; + } b_isoc; +} host_dma_desc_sts_t; + +#define MAX_DMA_DESC_SIZE 131071 +#define MAX_DMA_DESC_NUM_GENERIC 64 +#define MAX_DMA_DESC_NUM_HS_ISOC 256 +#define MAX_FRLIST_EN_NUM 64 +/** + * Host-mode DMA Descriptor structure + * + * DMA Descriptor structure contains two quadlets: + * Status quadlet and Data buffer pointer. + */ +typedef struct dwc_otg_host_dma_desc { + /** DMA Descriptor status quadlet */ + host_dma_desc_sts_t status; + /** DMA Descriptor data buffer pointer */ + uint32_t buf; +} dwc_otg_host_dma_desc_t; + +/** OTG Host Interface Structure. + * + * The OTG Host Interface Structure structure contains information + * needed to manage the DWC_otg controller acting in host mode. It + * represents the programming view of the host-specific aspects of the + * controller. + */ +typedef struct dwc_otg_host_if { + /** Host Global Registers starting at offset 400h.*/ + dwc_otg_host_global_regs_t *host_global_regs; +#define DWC_OTG_HOST_GLOBAL_REG_OFFSET 0x400 + + /** Host Port 0 Control and Status Register */ + volatile uint32_t *hprt0; +#define DWC_OTG_HOST_PORT_REGS_OFFSET 0x440 + + /** Host Channel Specific Registers at offsets 500h-5FCh. */ + dwc_otg_hc_regs_t *hc_regs[MAX_EPS_CHANNELS]; +#define DWC_OTG_HOST_CHAN_REGS_OFFSET 0x500 +#define DWC_OTG_CHAN_REGS_OFFSET 0x20 + + /* Host configuration information */ + /** Number of Host Channels (range: 1-16) */ + uint8_t num_host_channels; + /** Periodic EPs supported (0: no, 1: yes) */ + uint8_t perio_eps_supported; + /** Periodic Tx FIFO Size (Only 1 host periodic Tx FIFO) */ + uint16_t perio_tx_fifo_size; + +} dwc_otg_host_if_t; + +/** + * This union represents the bit fields in the Power and Clock Gating Control + * Register. Read the register into the d32 member then set/clear the + * bits using the bit elements. + */ +typedef union pcgcctl_data { + /** raw register data */ + uint32_t d32; + + /** register bits */ + struct { + /** Stop Pclk */ + unsigned stoppclk:1; + /** Gate Hclk */ + unsigned gatehclk:1; + /** Power Clamp */ + unsigned pwrclmp:1; + /** Reset Power Down Modules */ + unsigned rstpdwnmodule:1; + /** Reserved */ + unsigned reserved:1; + /** Enable Sleep Clock Gating (Enbl_L1Gating) */ + unsigned enbl_sleep_gating:1; + /** PHY In Sleep (PhySleep) */ + unsigned phy_in_sleep:1; + /** Deep Sleep*/ + unsigned deep_sleep:1; + unsigned resetaftsusp:1; + unsigned restoremode:1; + unsigned enbl_extnd_hiber:1; + unsigned extnd_hiber_pwrclmp:1; + unsigned extnd_hiber_switch:1; + unsigned ess_reg_restored:1; + unsigned prt_clk_sel:2; + unsigned port_power:1; + unsigned max_xcvrselect:2; + unsigned max_termsel:1; + unsigned mac_dev_addr:7; + unsigned p2hd_dev_enum_spd:2; + unsigned p2hd_prt_spd:2; + unsigned if_dev_mode:1; + } b; +} pcgcctl_data_t; + +/** + * This union represents the bit fields in the Global Data FIFO Software + * Configuration Register. Read the register into the d32 member then + * set/clear the bits using the bit elements. + */ +typedef union gdfifocfg_data { + /* raw register data */ + uint32_t d32; + /** register bits */ + struct { + /** OTG Data FIFO depth */ + unsigned gdfifocfg:16; + /** Start address of EP info controller */ + unsigned epinfobase:16; + } b; +} gdfifocfg_data_t; + +/** + * This union represents the bit fields in the Global Power Down Register + * Register. Read the register into the d32 member then set/clear the + * bits using the bit elements. + */ +typedef union gpwrdn_data { + /* raw register data */ + uint32_t d32; + + /** register bits */ + struct { + /** PMU Interrupt Select */ + unsigned pmuintsel:1; + /** PMU Active */ + unsigned pmuactv:1; + /** Restore */ + unsigned restore:1; + /** Power Down Clamp */ + unsigned pwrdnclmp:1; + /** Power Down Reset */ + unsigned pwrdnrstn:1; + /** Power Down Switch */ + unsigned pwrdnswtch:1; + /** Disable VBUS */ + unsigned dis_vbus:1; + /** Line State Change */ + unsigned lnstschng:1; + /** Line state change mask */ + unsigned lnstchng_msk:1; + /** Reset Detected */ + unsigned rst_det:1; + /** Reset Detect mask */ + unsigned rst_det_msk:1; + /** Disconnect Detected */ + unsigned disconn_det:1; + /** Disconnect Detect mask */ + unsigned disconn_det_msk:1; + /** Connect Detected*/ + unsigned connect_det:1; + /** Connect Detected Mask*/ + unsigned connect_det_msk:1; + /** SRP Detected */ + unsigned srp_det:1; + /** SRP Detect mask */ + unsigned srp_det_msk:1; + /** Status Change Interrupt */ + unsigned sts_chngint:1; + /** Status Change Interrupt Mask */ + unsigned sts_chngint_msk:1; + /** Line State */ + unsigned linestate:2; + /** Indicates current mode(status of IDDIG signal) */ + unsigned idsts:1; + /** B Session Valid signal status*/ + unsigned bsessvld:1; + /** ADP Event Detected */ + unsigned adp_int:1; + /** Multi Valued ID pin */ + unsigned mult_val_id_bc:5; + /** Reserved 24_31 */ + unsigned reserved29_31:3; + } b; +} gpwrdn_data_t; + +#endif diff --git a/drivers/usb/host/dwc_otg/test/Makefile b/drivers/usb/host/dwc_otg/test/Makefile new file mode 100644 index 0000000000000000000000000000000000000000..fc453759dea3e88b8f79a1a151bbcaab7e242899 --- /dev/null +++ b/drivers/usb/host/dwc_otg/test/Makefile @@ -0,0 +1,16 @@ + +PERL=/usr/bin/perl +PL_TESTS=test_sysfs.pl test_mod_param.pl + +.PHONY : test +test : perl_tests + +perl_tests : + @echo + @echo Running perl tests + @for test in $(PL_TESTS); do \ + if $(PERL) ./$$test ; then \ + echo "=======> $$test, PASSED" ; \ + else echo "=======> $$test, FAILED" ; \ + fi \ + done diff --git a/drivers/usb/host/dwc_otg/test/dwc_otg_test.pm b/drivers/usb/host/dwc_otg/test/dwc_otg_test.pm new file mode 100644 index 0000000000000000000000000000000000000000..85e55fd6ddbc78051d65a11125d4265aea6c24e3 --- /dev/null +++ b/drivers/usb/host/dwc_otg/test/dwc_otg_test.pm @@ -0,0 +1,337 @@ +package dwc_otg_test; + +use strict; +use Exporter (); + +use vars qw(@ISA @EXPORT +$sysfsdir $paramdir $errors $params +); + +@ISA = qw(Exporter); + +# +# Globals +# +$sysfsdir = "/sys/devices/lm0"; +$paramdir = "/sys/module/dwc_otg"; +$errors = 0; + +$params = [ + { + NAME => "otg_cap", + DEFAULT => 0, + ENUM => [], + LOW => 0, + HIGH => 2 + }, + { + NAME => "dma_enable", + DEFAULT => 0, + ENUM => [], + LOW => 0, + HIGH => 1 + }, + { + NAME => "dma_burst_size", + DEFAULT => 32, + ENUM => [1, 4, 8, 16, 32, 64, 128, 256], + LOW => 1, + HIGH => 256 + }, + { + NAME => "host_speed", + DEFAULT => 0, + ENUM => [], + LOW => 0, + HIGH => 1 + }, + { + NAME => "host_support_fs_ls_low_power", + DEFAULT => 0, + ENUM => [], + LOW => 0, + HIGH => 1 + }, + { + NAME => "host_ls_low_power_phy_clk", + DEFAULT => 0, + ENUM => [], + LOW => 0, + HIGH => 1 + }, + { + NAME => "dev_speed", + DEFAULT => 0, + ENUM => [], + LOW => 0, + HIGH => 1 + }, + { + NAME => "enable_dynamic_fifo", + DEFAULT => 1, + ENUM => [], + LOW => 0, + HIGH => 1 + }, + { + NAME => "data_fifo_size", + DEFAULT => 8192, + ENUM => [], + LOW => 32, + HIGH => 32768 + }, + { + NAME => "dev_rx_fifo_size", + DEFAULT => 1064, + ENUM => [], + LOW => 16, + HIGH => 32768 + }, + { + NAME => "dev_nperio_tx_fifo_size", + DEFAULT => 1024, + ENUM => [], + LOW => 16, + HIGH => 32768 + }, + { + NAME => "dev_perio_tx_fifo_size_1", + DEFAULT => 256, + ENUM => [], + LOW => 4, + HIGH => 768 + }, + { + NAME => "dev_perio_tx_fifo_size_2", + DEFAULT => 256, + ENUM => [], + LOW => 4, + HIGH => 768 + }, + { + NAME => "dev_perio_tx_fifo_size_3", + DEFAULT => 256, + ENUM => [], + LOW => 4, + HIGH => 768 + }, + { + NAME => "dev_perio_tx_fifo_size_4", + DEFAULT => 256, + ENUM => [], + LOW => 4, + HIGH => 768 + }, + { + NAME => "dev_perio_tx_fifo_size_5", + DEFAULT => 256, + ENUM => [], + LOW => 4, + HIGH => 768 + }, + { + NAME => "dev_perio_tx_fifo_size_6", + DEFAULT => 256, + ENUM => [], + LOW => 4, + HIGH => 768 + }, + { + NAME => "dev_perio_tx_fifo_size_7", + DEFAULT => 256, + ENUM => [], + LOW => 4, + HIGH => 768 + }, + { + NAME => "dev_perio_tx_fifo_size_8", + DEFAULT => 256, + ENUM => [], + LOW => 4, + HIGH => 768 + }, + { + NAME => "dev_perio_tx_fifo_size_9", + DEFAULT => 256, + ENUM => [], + LOW => 4, + HIGH => 768 + }, + { + NAME => "dev_perio_tx_fifo_size_10", + DEFAULT => 256, + ENUM => [], + LOW => 4, + HIGH => 768 + }, + { + NAME => "dev_perio_tx_fifo_size_11", + DEFAULT => 256, + ENUM => [], + LOW => 4, + HIGH => 768 + }, + { + NAME => "dev_perio_tx_fifo_size_12", + DEFAULT => 256, + ENUM => [], + LOW => 4, + HIGH => 768 + }, + { + NAME => "dev_perio_tx_fifo_size_13", + DEFAULT => 256, + ENUM => [], + LOW => 4, + HIGH => 768 + }, + { + NAME => "dev_perio_tx_fifo_size_14", + DEFAULT => 256, + ENUM => [], + LOW => 4, + HIGH => 768 + }, + { + NAME => "dev_perio_tx_fifo_size_15", + DEFAULT => 256, + ENUM => [], + LOW => 4, + HIGH => 768 + }, + { + NAME => "host_rx_fifo_size", + DEFAULT => 1024, + ENUM => [], + LOW => 16, + HIGH => 32768 + }, + { + NAME => "host_nperio_tx_fifo_size", + DEFAULT => 1024, + ENUM => [], + LOW => 16, + HIGH => 32768 + }, + { + NAME => "host_perio_tx_fifo_size", + DEFAULT => 1024, + ENUM => [], + LOW => 16, + HIGH => 32768 + }, + { + NAME => "max_transfer_size", + DEFAULT => 65535, + ENUM => [], + LOW => 2047, + HIGH => 65535 + }, + { + NAME => "max_packet_count", + DEFAULT => 511, + ENUM => [], + LOW => 15, + HIGH => 511 + }, + { + NAME => "host_channels", + DEFAULT => 12, + ENUM => [], + LOW => 1, + HIGH => 16 + }, + { + NAME => "dev_endpoints", + DEFAULT => 6, + ENUM => [], + LOW => 1, + HIGH => 15 + }, + { + NAME => "phy_type", + DEFAULT => 1, + ENUM => [], + LOW => 0, + HIGH => 2 + }, + { + NAME => "phy_utmi_width", + DEFAULT => 16, + ENUM => [8, 16], + LOW => 8, + HIGH => 16 + }, + { + NAME => "phy_ulpi_ddr", + DEFAULT => 0, + ENUM => [], + LOW => 0, + HIGH => 1 + }, + ]; + + +# +# +sub check_arch { + $_ = `uname -m`; + chomp; + unless (m/armv4tl/) { + warn "# \n# Can't execute on $_. Run on integrator platform.\n# \n"; + return 0; + } + return 1; +} + +# +# +sub load_module { + my $params = shift; + print "\nRemoving Module\n"; + system "rmmod dwc_otg"; + print "Loading Module\n"; + if ($params ne "") { + print "Module Parameters: $params\n"; + } + if (system("modprobe dwc_otg $params")) { + warn "Unable to load module\n"; + return 0; + } + return 1; +} + +# +# +sub test_status { + my $arg = shift; + + print "\n"; + + if (defined $arg) { + warn "WARNING: $arg\n"; + } + + if ($errors > 0) { + warn "TEST FAILED with $errors errors\n"; + return 0; + } else { + print "TEST PASSED\n"; + return 0 if (defined $arg); + } + return 1; +} + +# +# +@EXPORT = qw( +$sysfsdir +$paramdir +$params +$errors +check_arch +load_module +test_status +); + +1; diff --git a/drivers/usb/host/dwc_otg/test/test_mod_param.pl b/drivers/usb/host/dwc_otg/test/test_mod_param.pl new file mode 100644 index 0000000000000000000000000000000000000000..dc3820df577bae2c51bc2b1cef57ac9c4fdfc6e5 --- /dev/null +++ b/drivers/usb/host/dwc_otg/test/test_mod_param.pl @@ -0,0 +1,133 @@ +#!/usr/bin/perl -w +# +# Run this program on the integrator. +# +# - Tests module parameter default values. +# - Tests setting of valid module parameter values via modprobe. +# - Tests invalid module parameter values. +# ----------------------------------------------------------------------------- +use strict; +use dwc_otg_test; + +check_arch() or die; + +# +# +sub test { + my ($param,$expected) = @_; + my $value = get($param); + + if ($value == $expected) { + print "$param = $value, okay\n"; + } + + else { + warn "ERROR: value of $param != $expected, $value\n"; + $errors ++; + } +} + +# +# +sub get { + my $param = shift; + my $tmp = `cat $paramdir/$param`; + chomp $tmp; + return $tmp; +} + +# +# +sub test_main { + + print "\nTesting Module Parameters\n"; + + load_module("") or die; + + # Test initial values + print "\nTesting Default Values\n"; + foreach (@{$params}) { + test ($_->{NAME}, $_->{DEFAULT}); + } + + # Test low value + print "\nTesting Low Value\n"; + my $cmd_params = ""; + foreach (@{$params}) { + $cmd_params = $cmd_params . "$_->{NAME}=$_->{LOW} "; + } + load_module($cmd_params) or die; + + foreach (@{$params}) { + test ($_->{NAME}, $_->{LOW}); + } + + # Test high value + print "\nTesting High Value\n"; + $cmd_params = ""; + foreach (@{$params}) { + $cmd_params = $cmd_params . "$_->{NAME}=$_->{HIGH} "; + } + load_module($cmd_params) or die; + + foreach (@{$params}) { + test ($_->{NAME}, $_->{HIGH}); + } + + # Test Enum + print "\nTesting Enumerated\n"; + foreach (@{$params}) { + if (defined $_->{ENUM}) { + my $value; + foreach $value (@{$_->{ENUM}}) { + $cmd_params = "$_->{NAME}=$value"; + load_module($cmd_params) or die; + test ($_->{NAME}, $value); + } + } + } + + # Test Invalid Values + print "\nTesting Invalid Values\n"; + $cmd_params = ""; + foreach (@{$params}) { + $cmd_params = $cmd_params . sprintf "$_->{NAME}=%d ", $_->{LOW}-1; + } + load_module($cmd_params) or die; + + foreach (@{$params}) { + test ($_->{NAME}, $_->{DEFAULT}); + } + + $cmd_params = ""; + foreach (@{$params}) { + $cmd_params = $cmd_params . sprintf "$_->{NAME}=%d ", $_->{HIGH}+1; + } + load_module($cmd_params) or die; + + foreach (@{$params}) { + test ($_->{NAME}, $_->{DEFAULT}); + } + + print "\nTesting Enumerated\n"; + foreach (@{$params}) { + if (defined $_->{ENUM}) { + my $value; + foreach $value (@{$_->{ENUM}}) { + $value = $value + 1; + $cmd_params = "$_->{NAME}=$value"; + load_module($cmd_params) or die; + test ($_->{NAME}, $_->{DEFAULT}); + $value = $value - 2; + $cmd_params = "$_->{NAME}=$value"; + load_module($cmd_params) or die; + test ($_->{NAME}, $_->{DEFAULT}); + } + } + } + + test_status() or die; +} + +test_main(); +0; diff --git a/drivers/usb/host/dwc_otg/test/test_sysfs.pl b/drivers/usb/host/dwc_otg/test/test_sysfs.pl new file mode 100644 index 0000000000000000000000000000000000000000..cdc9963176e5a4a0d5250613b61e26c578d7130a --- /dev/null +++ b/drivers/usb/host/dwc_otg/test/test_sysfs.pl @@ -0,0 +1,193 @@ +#!/usr/bin/perl -w +# +# Run this program on the integrator +# - Tests select sysfs attributes. +# - Todo ... test more attributes, hnp/srp, buspower/bussuspend, etc. +# ----------------------------------------------------------------------------- +use strict; +use dwc_otg_test; + +check_arch() or die; + +# +# +sub test { + my ($attr,$expected) = @_; + my $string = get($attr); + + if ($string eq $expected) { + printf("$attr = $string, okay\n"); + } + else { + warn "ERROR: value of $attr != $expected, $string\n"; + $errors ++; + } +} + +# +# +sub set { + my ($reg, $value) = @_; + system "echo $value > $sysfsdir/$reg"; +} + +# +# +sub get { + my $attr = shift; + my $string = `cat $sysfsdir/$attr`; + chomp $string; + if ($string =~ m/\s\=\s/) { + my $tmp; + ($tmp, $string) = split /\s=\s/, $string; + } + return $string; +} + +# +# +sub test_main { + print("\nTesting Sysfs Attributes\n"); + + load_module("") or die; + + # Test initial values of regoffset/regvalue/guid/gsnpsid + print("\nTesting Default Values\n"); + + test("regoffset", "0xffffffff"); + test("regvalue", "invalid offset"); + test("guid", "0x12345678"); # this will fail if it has been changed + test("gsnpsid", "0x4f54200a"); + + # Test operation of regoffset/regvalue + print("\nTesting regoffset\n"); + set('regoffset', '5a5a5a5a'); + test("regoffset", "0xffffffff"); + + set('regoffset', '0'); + test("regoffset", "0x00000000"); + + set('regoffset', '40000'); + test("regoffset", "0x00000000"); + + set('regoffset', '3ffff'); + test("regoffset", "0x0003ffff"); + + set('regoffset', '1'); + test("regoffset", "0x00000001"); + + print("\nTesting regvalue\n"); + set('regoffset', '3c'); + test("regvalue", "0x12345678"); + set('regvalue', '5a5a5a5a'); + test("regvalue", "0x5a5a5a5a"); + set('regvalue','a5a5a5a5'); + test("regvalue", "0xa5a5a5a5"); + set('guid','12345678'); + + # Test HNP Capable + print("\nTesting HNP Capable bit\n"); + set('hnpcapable', '1'); + test("hnpcapable", "0x1"); + set('hnpcapable','0'); + test("hnpcapable", "0x0"); + + set('regoffset','0c'); + + my $old = get('gusbcfg'); + print("setting hnpcapable\n"); + set('hnpcapable', '1'); + test("hnpcapable", "0x1"); + test('gusbcfg', sprintf "0x%08x", (oct ($old) | (1<<9))); + test('regvalue', sprintf "0x%08x", (oct ($old) | (1<<9))); + + $old = get('gusbcfg'); + print("clearing hnpcapable\n"); + set('hnpcapable', '0'); + test("hnpcapable", "0x0"); + test ('gusbcfg', sprintf "0x%08x", oct ($old) & (~(1<<9))); + test ('regvalue', sprintf "0x%08x", oct ($old) & (~(1<<9))); + + # Test SRP Capable + print("\nTesting SRP Capable bit\n"); + set('srpcapable', '1'); + test("srpcapable", "0x1"); + set('srpcapable','0'); + test("srpcapable", "0x0"); + + set('regoffset','0c'); + + $old = get('gusbcfg'); + print("setting srpcapable\n"); + set('srpcapable', '1'); + test("srpcapable", "0x1"); + test('gusbcfg', sprintf "0x%08x", (oct ($old) | (1<<8))); + test('regvalue', sprintf "0x%08x", (oct ($old) | (1<<8))); + + $old = get('gusbcfg'); + print("clearing srpcapable\n"); + set('srpcapable', '0'); + test("srpcapable", "0x0"); + test('gusbcfg', sprintf "0x%08x", oct ($old) & (~(1<<8))); + test('regvalue', sprintf "0x%08x", oct ($old) & (~(1<<8))); + + # Test GGPIO + print("\nTesting GGPIO\n"); + set('ggpio','5a5a5a5a'); + test('ggpio','0x5a5a0000'); + set('ggpio','a5a5a5a5'); + test('ggpio','0xa5a50000'); + set('ggpio','11110000'); + test('ggpio','0x11110000'); + set('ggpio','00001111'); + test('ggpio','0x00000000'); + + # Test DEVSPEED + print("\nTesting DEVSPEED\n"); + set('regoffset','800'); + $old = get('regvalue'); + set('devspeed','0'); + test('devspeed','0x0'); + test('regvalue',sprintf("0x%08x", oct($old) & ~(0x3))); + set('devspeed','1'); + test('devspeed','0x1'); + test('regvalue',sprintf("0x%08x", oct($old) & ~(0x3) | 1)); + set('devspeed','2'); + test('devspeed','0x2'); + test('regvalue',sprintf("0x%08x", oct($old) & ~(0x3) | 2)); + set('devspeed','3'); + test('devspeed','0x3'); + test('regvalue',sprintf("0x%08x", oct($old) & ~(0x3) | 3)); + set('devspeed','4'); + test('devspeed','0x0'); + test('regvalue',sprintf("0x%08x", oct($old) & ~(0x3))); + set('devspeed','5'); + test('devspeed','0x1'); + test('regvalue',sprintf("0x%08x", oct($old) & ~(0x3) | 1)); + + + # mode Returns the current mode:0 for device mode1 for host mode Read + # hnp Initiate the Host Negotiation Protocol. Read returns the status. Read/Write + # srp Initiate the Session Request Protocol. Read returns the status. Read/Write + # buspower Get or Set the Power State of the bus (0 - Off or 1 - On) Read/Write + # bussuspend Suspend the USB bus. Read/Write + # busconnected Get the connection status of the bus Read + + # gotgctl Get or set the Core Control Status Register. Read/Write + ## gusbcfg Get or set the Core USB Configuration Register Read/Write + # grxfsiz Get or set the Receive FIFO Size Register Read/Write + # gnptxfsiz Get or set the non-periodic Transmit Size Register Read/Write + # gpvndctl Get or set the PHY Vendor Control Register Read/Write + ## ggpio Get the value in the lower 16-bits of the General Purpose IO Register or Set the upper 16 bits. Read/Write + ## guid Get or set the value of the User ID Register Read/Write + ## gsnpsid Get the value of the Synopsys ID Regester Read + ## devspeed Get or set the device speed setting in the DCFG register Read/Write + # enumspeed Gets the device enumeration Speed. Read + # hptxfsiz Get the value of the Host Periodic Transmit FIFO Read + # hprt0 Get or Set the value in the Host Port Control and Status Register Read/Write + + test_status("TEST NYI") or die; +} + +test_main(); +0; From 87d5ff0f1d9a318cb39e7537e1fa54c9b9f08bb0 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Wed, 10 May 2017 12:47:46 +0100 Subject: [PATCH 038/165] dwcotg: Allow to build without FIQ on ARM64 Signed-off-by: popcornmix --- drivers/usb/host/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index ed0cd59de37e8f47369f86dba751c78933722abc..53aedbe9727ca5c34e46f5cf998f14c7ee7f0ff6 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -765,7 +765,7 @@ config USB_HWA_HCD config USB_DWCOTG tristate "Synopsis DWC host support" - depends on USB + depends on USB && (FIQ || ARM64) help The Synopsis DWC controller is a dual-role host/peripheral/OTG ("On The Go") USB controllers. From cada4595e9a1d65906bc17d1c99fb5780db953ce Mon Sep 17 00:00:00 2001 From: popcornmix Date: Wed, 17 Jun 2015 17:06:34 +0100 Subject: [PATCH 039/165] bcm2708 framebuffer driver MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: popcornmix bcm2708_fb : Implement blanking support using the mailbox property interface bcm2708_fb: Add pan and vsync controls bcm2708_fb: DMA acceleration for fb_copyarea Based on http://www.raspberrypi.org/phpBB3/viewtopic.php?p=62425#p62425 Also used Simon's dmaer_master module as a reference for tweaking DMA settings for better performance. For now busylooping only. IRQ support might be added later. With non-overclocked Raspberry Pi, the performance is ~360 MB/s for simple copy or ~260 MB/s for two-pass copy (used when dragging windows to the right). In the case of using DMA channel 0, the performance improves to ~440 MB/s. For comparison, VFP optimized CPU copy can only do ~114 MB/s in the same conditions (hindered by reading uncached source buffer). Signed-off-by: Siarhei Siamashka bcm2708_fb: report number of dma copies Add a counter (exported via debugfs) reporting the number of dma copies that the framebuffer driver has done, in order to help evaluate different optimization strategies. Signed-off-by: Luke Diamand bcm2708_fb: use IRQ for DMA copies The copyarea ioctl() uses DMA to speed things along. This was busy-waiting for completion. This change supports using an interrupt instead for larger transfers. For small transfers, busy-waiting is still likely to be faster. Signed-off-by: Luke Diamand bcm2708: Make ioctl logging quieter video: fbdev: bcm2708_fb: Don't panic on error No need to panic the kernel if the video driver fails. Just print a message and return an error. Signed-off-by: Noralf Trønnes fbdev: bcm2708_fb: Add ARCH_BCM2835 support Add Device Tree support. Pass the device to dma_alloc_coherent() in order to get the correct bus address on ARCH_BCM2835. Use the new DMA legacy API header file. Including is not necessary. Signed-off-by: Noralf Trønnes BCM270x_DT: Add bcm2708-fb device Add bcm2708-fb to Device Tree and don't add the platform device when booting in DT mode. Signed-off-by: Noralf Trønnes --- drivers/video/fbdev/Kconfig | 14 + drivers/video/fbdev/Makefile | 1 + drivers/video/fbdev/bcm2708_fb.c | 844 ++++++++++ drivers/video/logo/logo_linux_clut224.ppm | 2483 ++++++++++------------------- 4 files changed, 1740 insertions(+), 1602 deletions(-) create mode 100644 drivers/video/fbdev/bcm2708_fb.c diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index 922e4eaed9c5b5278572a79eb1cfc14e267a8bd5..2fae1676fafc16900d56622e3eef887e27b01eed 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -236,6 +236,20 @@ config FB_TILEBLITTING comment "Frame buffer hardware drivers" depends on FB +config FB_BCM2708 + tristate "BCM2708 framebuffer support" + depends on FB && RASPBERRYPI_FIRMWARE + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT + help + This framebuffer device driver is for the BCM2708 framebuffer. + + If you want to compile this as a module (=code which can be + inserted into and removed from the running kernel), say M + here and read . The module + will be called bcm2708_fb. + config FB_GRVGA tristate "Aeroflex Gaisler framebuffer support" depends on FB && SPARC diff --git a/drivers/video/fbdev/Makefile b/drivers/video/fbdev/Makefile index ee8c81405a7f9af1f190c98ddcfa53666ad97b0f..8cd1193b98690b9c4f49098ab14389504d65af3a 100644 --- a/drivers/video/fbdev/Makefile +++ b/drivers/video/fbdev/Makefile @@ -10,6 +10,7 @@ obj-$(CONFIG_FB_MACMODES) += macmodes.o obj-$(CONFIG_FB_WMT_GE_ROPS) += wmt_ge_rops.o # Hardware specific drivers go first +obj-$(CONFIG_FB_BCM2708) += bcm2708_fb.o obj-$(CONFIG_FB_AMIGA) += amifb.o c2p_planar.o obj-$(CONFIG_FB_ARC) += arcfb.o obj-$(CONFIG_FB_CLPS711X) += clps711x-fb.o diff --git a/drivers/video/fbdev/bcm2708_fb.c b/drivers/video/fbdev/bcm2708_fb.c new file mode 100644 index 0000000000000000000000000000000000000000..37f60813fe1dd95d9f5f725c07ec2e75c09857bf --- /dev/null +++ b/drivers/video/fbdev/bcm2708_fb.c @@ -0,0 +1,844 @@ +/* + * linux/drivers/video/bcm2708_fb.c + * + * Copyright (C) 2010 Broadcom + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + * Broadcom simple framebuffer driver + * + * This file is derived from cirrusfb.c + * Copyright 1999-2001 Jeff Garzik + * + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +//#define BCM2708_FB_DEBUG +#define MODULE_NAME "bcm2708_fb" + +#ifdef BCM2708_FB_DEBUG +#define print_debug(fmt,...) pr_debug("%s:%s:%d: "fmt, MODULE_NAME, __func__, __LINE__, ##__VA_ARGS__) +#else +#define print_debug(fmt,...) +#endif + +/* This is limited to 16 characters when displayed by X startup */ +static const char *bcm2708_name = "BCM2708 FB"; + +#define DRIVER_NAME "bcm2708_fb" + +static int fbwidth = 800; /* module parameter */ +static int fbheight = 480; /* module parameter */ +static int fbdepth = 32; /* module parameter */ +static int fbswap = 0; /* module parameter */ + +static u32 dma_busy_wait_threshold = 1<<15; +module_param(dma_busy_wait_threshold, int, 0644); +MODULE_PARM_DESC(dma_busy_wait_threshold, "Busy-wait for DMA completion below this area"); + +struct fb_alloc_tags { + struct rpi_firmware_property_tag_header tag1; + u32 xres, yres; + struct rpi_firmware_property_tag_header tag2; + u32 xres_virtual, yres_virtual; + struct rpi_firmware_property_tag_header tag3; + u32 bpp; + struct rpi_firmware_property_tag_header tag4; + u32 xoffset, yoffset; + struct rpi_firmware_property_tag_header tag5; + u32 base, screen_size; + struct rpi_firmware_property_tag_header tag6; + u32 pitch; +}; + +struct bcm2708_fb_stats { + struct debugfs_regset32 regset; + u32 dma_copies; + u32 dma_irqs; +}; + +struct bcm2708_fb { + struct fb_info fb; + struct platform_device *dev; + struct rpi_firmware *fw; + u32 cmap[16]; + u32 gpu_cmap[256]; + int dma_chan; + int dma_irq; + void __iomem *dma_chan_base; + void *cb_base; /* DMA control blocks */ + dma_addr_t cb_handle; + struct dentry *debugfs_dir; + wait_queue_head_t dma_waitq; + struct bcm2708_fb_stats stats; + unsigned long fb_bus_address; +}; + +#define to_bcm2708(info) container_of(info, struct bcm2708_fb, fb) + +static void bcm2708_fb_debugfs_deinit(struct bcm2708_fb *fb) +{ + debugfs_remove_recursive(fb->debugfs_dir); + fb->debugfs_dir = NULL; +} + +static int bcm2708_fb_debugfs_init(struct bcm2708_fb *fb) +{ + static struct debugfs_reg32 stats_registers[] = { + { + "dma_copies", + offsetof(struct bcm2708_fb_stats, dma_copies) + }, + { + "dma_irqs", + offsetof(struct bcm2708_fb_stats, dma_irqs) + }, + }; + + fb->debugfs_dir = debugfs_create_dir(DRIVER_NAME, NULL); + if (!fb->debugfs_dir) { + pr_warn("%s: could not create debugfs entry\n", + __func__); + return -EFAULT; + } + + fb->stats.regset.regs = stats_registers; + fb->stats.regset.nregs = ARRAY_SIZE(stats_registers); + fb->stats.regset.base = &fb->stats; + + if (!debugfs_create_regset32( + "stats", 0444, fb->debugfs_dir, &fb->stats.regset)) { + pr_warn("%s: could not create statistics registers\n", + __func__); + goto fail; + } + return 0; + +fail: + bcm2708_fb_debugfs_deinit(fb); + return -EFAULT; +} + +static int bcm2708_fb_set_bitfields(struct fb_var_screeninfo *var) +{ + int ret = 0; + + memset(&var->transp, 0, sizeof(var->transp)); + + var->red.msb_right = 0; + var->green.msb_right = 0; + var->blue.msb_right = 0; + + switch (var->bits_per_pixel) { + case 1: + case 2: + case 4: + case 8: + var->red.length = var->bits_per_pixel; + var->red.offset = 0; + var->green.length = var->bits_per_pixel; + var->green.offset = 0; + var->blue.length = var->bits_per_pixel; + var->blue.offset = 0; + break; + case 16: + var->red.length = 5; + var->blue.length = 5; + /* + * Green length can be 5 or 6 depending whether + * we're operating in RGB555 or RGB565 mode. + */ + if (var->green.length != 5 && var->green.length != 6) + var->green.length = 6; + break; + case 24: + var->red.length = 8; + var->blue.length = 8; + var->green.length = 8; + break; + case 32: + var->red.length = 8; + var->green.length = 8; + var->blue.length = 8; + var->transp.length = 8; + break; + default: + ret = -EINVAL; + break; + } + + /* + * >= 16bpp displays have separate colour component bitfields + * encoded in the pixel data. Calculate their position from + * the bitfield length defined above. + */ + if (ret == 0 && var->bits_per_pixel >= 24 && fbswap) { + var->blue.offset = 0; + var->green.offset = var->blue.offset + var->blue.length; + var->red.offset = var->green.offset + var->green.length; + var->transp.offset = var->red.offset + var->red.length; + } else if (ret == 0 && var->bits_per_pixel >= 24) { + var->red.offset = 0; + var->green.offset = var->red.offset + var->red.length; + var->blue.offset = var->green.offset + var->green.length; + var->transp.offset = var->blue.offset + var->blue.length; + } else if (ret == 0 && var->bits_per_pixel >= 16) { + var->blue.offset = 0; + var->green.offset = var->blue.offset + var->blue.length; + var->red.offset = var->green.offset + var->green.length; + var->transp.offset = var->red.offset + var->red.length; + } + + return ret; +} + +static int bcm2708_fb_check_var(struct fb_var_screeninfo *var, + struct fb_info *info) +{ + /* info input, var output */ + print_debug("bcm2708_fb_check_var info(%p) %dx%d (%dx%d), %d, %d\n", info, + info->var.xres, info->var.yres, info->var.xres_virtual, + info->var.yres_virtual, (int)info->screen_size, + info->var.bits_per_pixel); + print_debug("bcm2708_fb_check_var var(%p) %dx%d (%dx%d), %d\n", var, + var->xres, var->yres, var->xres_virtual, var->yres_virtual, + var->bits_per_pixel); + + if (!var->bits_per_pixel) + var->bits_per_pixel = 16; + + if (bcm2708_fb_set_bitfields(var) != 0) { + pr_err("bcm2708_fb_check_var: invalid bits_per_pixel %d\n", + var->bits_per_pixel); + return -EINVAL; + } + + + if (var->xres_virtual < var->xres) + var->xres_virtual = var->xres; + /* use highest possible virtual resolution */ + if (var->yres_virtual == -1) { + var->yres_virtual = 480; + + pr_err + ("bcm2708_fb_check_var: virtual resolution set to maximum of %dx%d\n", + var->xres_virtual, var->yres_virtual); + } + if (var->yres_virtual < var->yres) + var->yres_virtual = var->yres; + + if (var->xoffset < 0) + var->xoffset = 0; + if (var->yoffset < 0) + var->yoffset = 0; + + /* truncate xoffset and yoffset to maximum if too high */ + if (var->xoffset > var->xres_virtual - var->xres) + var->xoffset = var->xres_virtual - var->xres - 1; + if (var->yoffset > var->yres_virtual - var->yres) + var->yoffset = var->yres_virtual - var->yres - 1; + + return 0; +} + +static int bcm2708_fb_set_par(struct fb_info *info) +{ + struct bcm2708_fb *fb = to_bcm2708(info); + struct fb_alloc_tags fbinfo = { + .tag1 = { RPI_FIRMWARE_FRAMEBUFFER_SET_PHYSICAL_WIDTH_HEIGHT, + 8, 0, }, + .xres = info->var.xres, + .yres = info->var.yres, + .tag2 = { RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_WIDTH_HEIGHT, + 8, 0, }, + .xres_virtual = info->var.xres_virtual, + .yres_virtual = info->var.yres_virtual, + .tag3 = { RPI_FIRMWARE_FRAMEBUFFER_SET_DEPTH, 4, 0 }, + .bpp = info->var.bits_per_pixel, + .tag4 = { RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_OFFSET, 8, 0 }, + .xoffset = info->var.xoffset, + .yoffset = info->var.yoffset, + .tag5 = { RPI_FIRMWARE_FRAMEBUFFER_ALLOCATE, 8, 0 }, + .base = 0, + .screen_size = 0, + .tag6 = { RPI_FIRMWARE_FRAMEBUFFER_GET_PITCH, 4, 0 }, + .pitch = 0, + }; + int ret; + + print_debug("bcm2708_fb_set_par info(%p) %dx%d (%dx%d), %d, %d\n", info, + info->var.xres, info->var.yres, info->var.xres_virtual, + info->var.yres_virtual, (int)info->screen_size, + info->var.bits_per_pixel); + + ret = rpi_firmware_property_list(fb->fw, &fbinfo, sizeof(fbinfo)); + if (ret) { + dev_err(info->device, + "Failed to allocate GPU framebuffer (%d)\n", ret); + return ret; + } + + if (info->var.bits_per_pixel <= 8) + fb->fb.fix.visual = FB_VISUAL_PSEUDOCOLOR; + else + fb->fb.fix.visual = FB_VISUAL_TRUECOLOR; + + fb->fb.fix.line_length = fbinfo.pitch; + fbinfo.base |= 0x40000000; + fb->fb_bus_address = fbinfo.base; + fbinfo.base &= ~0xc0000000; + fb->fb.fix.smem_start = fbinfo.base; + fb->fb.fix.smem_len = fbinfo.pitch * fbinfo.yres_virtual; + fb->fb.screen_size = fbinfo.screen_size; + if (fb->fb.screen_base) + iounmap(fb->fb.screen_base); + fb->fb.screen_base = ioremap_wc(fbinfo.base, fb->fb.screen_size); + if (!fb->fb.screen_base) { + /* the console may currently be locked */ + console_trylock(); + console_unlock(); + dev_err(info->device, "Failed to set screen_base\n"); + return -ENOMEM; + } + + print_debug + ("BCM2708FB: start = %p,%p width=%d, height=%d, bpp=%d, pitch=%d size=%d\n", + (void *)fb->fb.screen_base, (void *)fb->fb_bus_address, + fbinfo.xres, fbinfo.yres, fbinfo.bpp, + fbinfo.pitch, (int)fb->fb.screen_size); + + return 0; +} + +static inline u32 convert_bitfield(int val, struct fb_bitfield *bf) +{ + unsigned int mask = (1 << bf->length) - 1; + + return (val >> (16 - bf->length) & mask) << bf->offset; +} + + +static int bcm2708_fb_setcolreg(unsigned int regno, unsigned int red, + unsigned int green, unsigned int blue, + unsigned int transp, struct fb_info *info) +{ + struct bcm2708_fb *fb = to_bcm2708(info); + + /*print_debug("BCM2708FB: setcolreg %d:(%02x,%02x,%02x,%02x) %x\n", regno, red, green, blue, transp, fb->fb.fix.visual);*/ + if (fb->fb.var.bits_per_pixel <= 8) { + if (regno < 256) { + /* blue [23:16], green [15:8], red [7:0] */ + fb->gpu_cmap[regno] = ((red >> 8) & 0xff) << 0 | + ((green >> 8) & 0xff) << 8 | + ((blue >> 8) & 0xff) << 16; + } + /* Hack: we need to tell GPU the palette has changed, but currently bcm2708_fb_set_par takes noticable time when called for every (256) colour */ + /* So just call it for what looks like the last colour in a list for now. */ + if (regno == 15 || regno == 255) { + struct packet { + u32 offset; + u32 length; + u32 cmap[256]; + } *packet; + int ret; + + packet = kmalloc(sizeof(*packet), GFP_KERNEL); + if (!packet) + return -ENOMEM; + packet->offset = 0; + packet->length = regno + 1; + memcpy(packet->cmap, fb->gpu_cmap, sizeof(packet->cmap)); + ret = rpi_firmware_property(fb->fw, RPI_FIRMWARE_FRAMEBUFFER_SET_PALETTE, + packet, (2 + packet->length) * sizeof(u32)); + if (ret || packet->offset) + dev_err(info->device, "Failed to set palette (%d,%u)\n", + ret, packet->offset); + kfree(packet); + } + } else if (regno < 16) { + fb->cmap[regno] = convert_bitfield(transp, &fb->fb.var.transp) | + convert_bitfield(blue, &fb->fb.var.blue) | + convert_bitfield(green, &fb->fb.var.green) | + convert_bitfield(red, &fb->fb.var.red); + } + return regno > 255; +} + +static int bcm2708_fb_blank(int blank_mode, struct fb_info *info) +{ + struct bcm2708_fb *fb = to_bcm2708(info); + u32 value; + int ret; + + switch (blank_mode) { + case FB_BLANK_UNBLANK: + value = 0; + break; + case FB_BLANK_NORMAL: + case FB_BLANK_VSYNC_SUSPEND: + case FB_BLANK_HSYNC_SUSPEND: + case FB_BLANK_POWERDOWN: + value = 1; + break; + default: + return -EINVAL; + } + + ret = rpi_firmware_property(fb->fw, RPI_FIRMWARE_FRAMEBUFFER_BLANK, + &value, sizeof(value)); + if (ret) + dev_err(info->device, "bcm2708_fb_blank(%d) failed: %d\n", + blank_mode, ret); + + return ret; +} + +static int bcm2708_fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) +{ + s32 result; + info->var.xoffset = var->xoffset; + info->var.yoffset = var->yoffset; + result = bcm2708_fb_set_par(info); + if (result != 0) + pr_err("bcm2708_fb_pan_display(%d,%d) returns=%d\n", var->xoffset, var->yoffset, result); + return result; +} + +static int bcm2708_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) +{ + struct bcm2708_fb *fb = to_bcm2708(info); + u32 dummy = 0; + int ret; + + switch (cmd) { + case FBIO_WAITFORVSYNC: + ret = rpi_firmware_property(fb->fw, + RPI_FIRMWARE_FRAMEBUFFER_SET_VSYNC, + &dummy, sizeof(dummy)); + break; + default: + dev_dbg(info->device, "Unknown ioctl 0x%x\n", cmd); + return -ENOTTY; + } + + if (ret) + dev_err(info->device, "ioctl 0x%x failed (%d)\n", cmd, ret); + + return ret; +} +static void bcm2708_fb_fillrect(struct fb_info *info, + const struct fb_fillrect *rect) +{ + /* (is called) print_debug("bcm2708_fb_fillrect\n"); */ + cfb_fillrect(info, rect); +} + +/* A helper function for configuring dma control block */ +static void set_dma_cb(struct bcm2708_dma_cb *cb, + int burst_size, + dma_addr_t dst, + int dst_stride, + dma_addr_t src, + int src_stride, + int w, + int h) +{ + cb->info = BCM2708_DMA_BURST(burst_size) | BCM2708_DMA_S_WIDTH | + BCM2708_DMA_S_INC | BCM2708_DMA_D_WIDTH | + BCM2708_DMA_D_INC | BCM2708_DMA_TDMODE; + cb->dst = dst; + cb->src = src; + /* + * This is not really obvious from the DMA documentation, + * but the top 16 bits must be programmmed to "height -1" + * and not "height" in 2D mode. + */ + cb->length = ((h - 1) << 16) | w; + cb->stride = ((dst_stride - w) << 16) | (u16)(src_stride - w); + cb->pad[0] = 0; + cb->pad[1] = 0; +} + +static void bcm2708_fb_copyarea(struct fb_info *info, + const struct fb_copyarea *region) +{ + struct bcm2708_fb *fb = to_bcm2708(info); + struct bcm2708_dma_cb *cb = fb->cb_base; + int bytes_per_pixel = (info->var.bits_per_pixel + 7) >> 3; + /* Channel 0 supports larger bursts and is a bit faster */ + int burst_size = (fb->dma_chan == 0) ? 8 : 2; + int pixels = region->width * region->height; + + /* Fallback to cfb_copyarea() if we don't like something */ + if (in_atomic() || + bytes_per_pixel > 4 || + info->var.xres * info->var.yres > 1920 * 1200 || + region->width <= 0 || region->width > info->var.xres || + region->height <= 0 || region->height > info->var.yres || + region->sx < 0 || region->sx >= info->var.xres || + region->sy < 0 || region->sy >= info->var.yres || + region->dx < 0 || region->dx >= info->var.xres || + region->dy < 0 || region->dy >= info->var.yres || + region->sx + region->width > info->var.xres || + region->dx + region->width > info->var.xres || + region->sy + region->height > info->var.yres || + region->dy + region->height > info->var.yres) { + cfb_copyarea(info, region); + return; + } + + if (region->dy == region->sy && region->dx > region->sx) { + /* + * A difficult case of overlapped copy. Because DMA can't + * copy individual scanlines in backwards direction, we need + * two-pass processing. We do it by programming a chain of dma + * control blocks in the first 16K part of the buffer and use + * the remaining 48K as the intermediate temporary scratch + * buffer. The buffer size is sufficient to handle up to + * 1920x1200 resolution at 32bpp pixel depth. + */ + int y; + dma_addr_t control_block_pa = fb->cb_handle; + dma_addr_t scratchbuf = fb->cb_handle + 16 * 1024; + int scanline_size = bytes_per_pixel * region->width; + int scanlines_per_cb = (64 * 1024 - 16 * 1024) / scanline_size; + + for (y = 0; y < region->height; y += scanlines_per_cb) { + dma_addr_t src = + fb->fb_bus_address + + bytes_per_pixel * region->sx + + (region->sy + y) * fb->fb.fix.line_length; + dma_addr_t dst = + fb->fb_bus_address + + bytes_per_pixel * region->dx + + (region->dy + y) * fb->fb.fix.line_length; + + if (region->height - y < scanlines_per_cb) + scanlines_per_cb = region->height - y; + + set_dma_cb(cb, burst_size, scratchbuf, scanline_size, + src, fb->fb.fix.line_length, + scanline_size, scanlines_per_cb); + control_block_pa += sizeof(struct bcm2708_dma_cb); + cb->next = control_block_pa; + cb++; + + set_dma_cb(cb, burst_size, dst, fb->fb.fix.line_length, + scratchbuf, scanline_size, + scanline_size, scanlines_per_cb); + control_block_pa += sizeof(struct bcm2708_dma_cb); + cb->next = control_block_pa; + cb++; + } + /* move the pointer back to the last dma control block */ + cb--; + } else { + /* A single dma control block is enough. */ + int sy, dy, stride; + if (region->dy <= region->sy) { + /* processing from top to bottom */ + dy = region->dy; + sy = region->sy; + stride = fb->fb.fix.line_length; + } else { + /* processing from bottom to top */ + dy = region->dy + region->height - 1; + sy = region->sy + region->height - 1; + stride = -fb->fb.fix.line_length; + } + set_dma_cb(cb, burst_size, + fb->fb_bus_address + dy * fb->fb.fix.line_length + + bytes_per_pixel * region->dx, + stride, + fb->fb_bus_address + sy * fb->fb.fix.line_length + + bytes_per_pixel * region->sx, + stride, + region->width * bytes_per_pixel, + region->height); + } + + /* end of dma control blocks chain */ + cb->next = 0; + + + if (pixels < dma_busy_wait_threshold) { + bcm_dma_start(fb->dma_chan_base, fb->cb_handle); + bcm_dma_wait_idle(fb->dma_chan_base); + } else { + void __iomem *dma_chan = fb->dma_chan_base; + cb->info |= BCM2708_DMA_INT_EN; + bcm_dma_start(fb->dma_chan_base, fb->cb_handle); + while (bcm_dma_is_busy(dma_chan)) { + wait_event_interruptible( + fb->dma_waitq, + !bcm_dma_is_busy(dma_chan)); + } + fb->stats.dma_irqs++; + } + fb->stats.dma_copies++; +} + +static void bcm2708_fb_imageblit(struct fb_info *info, + const struct fb_image *image) +{ + /* (is called) print_debug("bcm2708_fb_imageblit\n"); */ + cfb_imageblit(info, image); +} + +static irqreturn_t bcm2708_fb_dma_irq(int irq, void *cxt) +{ + struct bcm2708_fb *fb = cxt; + + /* FIXME: should read status register to check if this is + * actually interrupting us or not, in case this interrupt + * ever becomes shared amongst several DMA channels + * + * readl(dma_chan_base + BCM2708_DMA_CS) & BCM2708_DMA_IRQ; + */ + + /* acknowledge the interrupt */ + writel(BCM2708_DMA_INT, fb->dma_chan_base + BCM2708_DMA_CS); + + wake_up(&fb->dma_waitq); + return IRQ_HANDLED; +} + +static struct fb_ops bcm2708_fb_ops = { + .owner = THIS_MODULE, + .fb_check_var = bcm2708_fb_check_var, + .fb_set_par = bcm2708_fb_set_par, + .fb_setcolreg = bcm2708_fb_setcolreg, + .fb_blank = bcm2708_fb_blank, + .fb_fillrect = bcm2708_fb_fillrect, + .fb_copyarea = bcm2708_fb_copyarea, + .fb_imageblit = bcm2708_fb_imageblit, + .fb_pan_display = bcm2708_fb_pan_display, + .fb_ioctl = bcm2708_ioctl, +}; + +static int bcm2708_fb_register(struct bcm2708_fb *fb) +{ + int ret; + + fb->fb.fbops = &bcm2708_fb_ops; + fb->fb.flags = FBINFO_FLAG_DEFAULT | FBINFO_HWACCEL_COPYAREA; + fb->fb.pseudo_palette = fb->cmap; + + strncpy(fb->fb.fix.id, bcm2708_name, sizeof(fb->fb.fix.id)); + fb->fb.fix.type = FB_TYPE_PACKED_PIXELS; + fb->fb.fix.type_aux = 0; + fb->fb.fix.xpanstep = 1; + fb->fb.fix.ypanstep = 1; + fb->fb.fix.ywrapstep = 0; + fb->fb.fix.accel = FB_ACCEL_NONE; + + fb->fb.var.xres = fbwidth; + fb->fb.var.yres = fbheight; + fb->fb.var.xres_virtual = fbwidth; + fb->fb.var.yres_virtual = fbheight; + fb->fb.var.bits_per_pixel = fbdepth; + fb->fb.var.vmode = FB_VMODE_NONINTERLACED; + fb->fb.var.activate = FB_ACTIVATE_NOW; + fb->fb.var.nonstd = 0; + fb->fb.var.height = -1; /* height of picture in mm */ + fb->fb.var.width = -1; /* width of picture in mm */ + fb->fb.var.accel_flags = 0; + + fb->fb.monspecs.hfmin = 0; + fb->fb.monspecs.hfmax = 100000; + fb->fb.monspecs.vfmin = 0; + fb->fb.monspecs.vfmax = 400; + fb->fb.monspecs.dclkmin = 1000000; + fb->fb.monspecs.dclkmax = 100000000; + + bcm2708_fb_set_bitfields(&fb->fb.var); + init_waitqueue_head(&fb->dma_waitq); + + /* + * Allocate colourmap. + */ + + fb_set_var(&fb->fb, &fb->fb.var); + ret = bcm2708_fb_set_par(&fb->fb); + if (ret) + return ret; + + print_debug("BCM2708FB: registering framebuffer (%dx%d@%d) (%d)\n", fbwidth, + fbheight, fbdepth, fbswap); + + ret = register_framebuffer(&fb->fb); + print_debug("BCM2708FB: register framebuffer (%d)\n", ret); + if (ret == 0) + goto out; + + print_debug("BCM2708FB: cannot register framebuffer (%d)\n", ret); +out: + return ret; +} + +static int bcm2708_fb_probe(struct platform_device *dev) +{ + struct device_node *fw_np; + struct rpi_firmware *fw; + struct bcm2708_fb *fb; + int ret; + + fw_np = of_parse_phandle(dev->dev.of_node, "firmware", 0); +/* Remove comment when booting without Device Tree is no longer supported + if (!fw_np) { + dev_err(&dev->dev, "Missing firmware node\n"); + return -ENOENT; + } +*/ + fw = rpi_firmware_get(fw_np); + if (!fw) + return -EPROBE_DEFER; + + fb = kzalloc(sizeof(struct bcm2708_fb), GFP_KERNEL); + if (!fb) { + dev_err(&dev->dev, + "could not allocate new bcm2708_fb struct\n"); + ret = -ENOMEM; + goto free_region; + } + + fb->fw = fw; + bcm2708_fb_debugfs_init(fb); + + fb->cb_base = dma_alloc_writecombine(&dev->dev, SZ_64K, + &fb->cb_handle, GFP_KERNEL); + if (!fb->cb_base) { + dev_err(&dev->dev, "cannot allocate DMA CBs\n"); + ret = -ENOMEM; + goto free_fb; + } + + pr_info("BCM2708FB: allocated DMA memory %08x\n", + fb->cb_handle); + + ret = bcm_dma_chan_alloc(BCM_DMA_FEATURE_BULK, + &fb->dma_chan_base, &fb->dma_irq); + if (ret < 0) { + dev_err(&dev->dev, "couldn't allocate a DMA channel\n"); + goto free_cb; + } + fb->dma_chan = ret; + + ret = request_irq(fb->dma_irq, bcm2708_fb_dma_irq, + 0, "bcm2708_fb dma", fb); + if (ret) { + pr_err("%s: failed to request DMA irq\n", __func__); + goto free_dma_chan; + } + + + pr_info("BCM2708FB: allocated DMA channel %d @ %p\n", + fb->dma_chan, fb->dma_chan_base); + + fb->dev = dev; + fb->fb.device = &dev->dev; + + ret = bcm2708_fb_register(fb); + if (ret == 0) { + platform_set_drvdata(dev, fb); + goto out; + } + +free_dma_chan: + bcm_dma_chan_free(fb->dma_chan); +free_cb: + dma_free_writecombine(&dev->dev, SZ_64K, fb->cb_base, fb->cb_handle); +free_fb: + kfree(fb); +free_region: + dev_err(&dev->dev, "probe failed, err %d\n", ret); +out: + return ret; +} + +static int bcm2708_fb_remove(struct platform_device *dev) +{ + struct bcm2708_fb *fb = platform_get_drvdata(dev); + + platform_set_drvdata(dev, NULL); + + if (fb->fb.screen_base) + iounmap(fb->fb.screen_base); + unregister_framebuffer(&fb->fb); + + dma_free_writecombine(&dev->dev, SZ_64K, fb->cb_base, fb->cb_handle); + bcm_dma_chan_free(fb->dma_chan); + + bcm2708_fb_debugfs_deinit(fb); + + free_irq(fb->dma_irq, fb); + + kfree(fb); + + return 0; +} + +static const struct of_device_id bcm2708_fb_of_match_table[] = { + { .compatible = "brcm,bcm2708-fb", }, + {}, +}; +MODULE_DEVICE_TABLE(of, bcm2708_fb_of_match_table); + +static struct platform_driver bcm2708_fb_driver = { + .probe = bcm2708_fb_probe, + .remove = bcm2708_fb_remove, + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + .of_match_table = bcm2708_fb_of_match_table, + }, +}; + +static int __init bcm2708_fb_init(void) +{ + return platform_driver_register(&bcm2708_fb_driver); +} + +module_init(bcm2708_fb_init); + +static void __exit bcm2708_fb_exit(void) +{ + platform_driver_unregister(&bcm2708_fb_driver); +} + +module_exit(bcm2708_fb_exit); + +module_param(fbwidth, int, 0644); +module_param(fbheight, int, 0644); +module_param(fbdepth, int, 0644); +module_param(fbswap, int, 0644); + +MODULE_DESCRIPTION("BCM2708 framebuffer driver"); +MODULE_LICENSE("GPL"); + +MODULE_PARM_DESC(fbwidth, "Width of ARM Framebuffer"); +MODULE_PARM_DESC(fbheight, "Height of ARM Framebuffer"); +MODULE_PARM_DESC(fbdepth, "Bit depth of ARM Framebuffer"); +MODULE_PARM_DESC(fbswap, "Swap order of red and blue in 24 and 32 bit modes"); diff --git a/drivers/video/logo/logo_linux_clut224.ppm b/drivers/video/logo/logo_linux_clut224.ppm index 3c14e43b82fefe1d32f591d1b2f61d2cd28d0fa8..7626beb6a5bb8df601ddf0f6e6909d1f66ae85d0 100644 --- a/drivers/video/logo/logo_linux_clut224.ppm +++ b/drivers/video/logo/logo_linux_clut224.ppm @@ -1,1604 +1,883 @@ P3 -# Standard 224-color Linux logo -80 80 +63 80 255 - 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 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0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 From 283d3214cafb02aa9fa108d097c3a543ef7804a1 Mon Sep 17 00:00:00 2001 From: Florian Meier Date: Fri, 22 Nov 2013 14:22:53 +0100 Subject: [PATCH 040/165] dmaengine: Add support for BCM2708 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add support for DMA controller of BCM2708 as used in the Raspberry Pi. Currently it only supports cyclic DMA. Signed-off-by: Florian Meier dmaengine: expand functionality by supporting scatter/gather transfers sdhci-bcm2708 and dma.c: fix for LITE channels DMA: fix cyclic LITE length overflow bug dmaengine: bcm2708: Remove chancnt affectations Mirror bcm2835-dma.c commit 9eba5536a7434c69d8c185d4bd1c70734d92287d: chancnt is already filled by dma_async_device_register, which uses the channel list to know how much channels there is. Since it's already filled, we can safely remove it from the drivers' probe function. Signed-off-by: Noralf Trønnes dmaengine: bcm2708: overwrite dreq only if it is not set dreq is set when the DMA channel is fetched from Device Tree. slave_id is set using dmaengine_slave_config(). Only overwrite dreq with slave_id if it is not set. dreq/slave_id in the cyclic DMA case is not touched, because I don't have hardware to test with. Signed-off-by: Noralf Trønnes dmaengine: bcm2708: do device registration in the board file Don't register the device in the driver. Do it in the board file. Signed-off-by: Noralf Trønnes dmaengine: bcm2708: don't restrict DT support to ARCH_BCM2835 Both ARCH_BCM2835 and ARCH_BCM270x are built with OF now. Add Device Tree support to the non ARCH_BCM2835 case. Use the same driver name regardless of architecture. Signed-off-by: Noralf Trønnes BCM270x_DT: add bcm2835-dma entry Add Device Tree entry for bcm2835-dma. The entry doesn't contain any resources since they are handled by the arch/arm/mach-bcm270x/dma.c driver. In non-DT mode, don't add the device in the board file. Signed-off-by: Noralf Trønnes bcm2708-dmaengine: Add debug options BCM270x: Add memory and irq resources to dmaengine device and DT Prepare for merging of the legacy DMA API arch driver dma.c with bcm2708-dmaengine by adding memory and irq resources both to platform file device and Device Tree node. Don't use BCM_DMAMAN_DRIVER_NAME so we don't have to include mach/dma.h Signed-off-by: Noralf Trønnes dmaengine: bcm2708: Merge with arch dma.c driver and disable dma.c Merge the legacy DMA API driver with bcm2708-dmaengine. This is done so we can use bcm2708_fb on ARCH_BCM2835 (mailbox driver is also needed). Changes to the dma.c code: - Use BIT() macro. - Cutdown some comments to one line. - Add mutex to vc_dmaman and use this, since the dev lock is locked during probing of the engine part. - Add global g_dmaman variable since drvdata is used by the engine part. - Restructure for readability: vc_dmaman_chan_alloc() vc_dmaman_chan_free() bcm_dma_chan_free() - Restructure bcm_dma_chan_alloc() to simplify error handling. - Use device irq resources instead of hardcoded bcm_dma_irqs table. - Remove dev_dmaman_register() and code it directly. - Remove dev_dmaman_deregister() and code it directly. - Simplify bcm_dmaman_probe() using devm_* functions. - Get dmachans from DT if available. - Keep 'dma.dmachans' module argument name for backwards compatibility. Make it available on ARCH_BCM2835 as well. Signed-off-by: Noralf Trønnes dmaengine: bcm2708: set residue_granularity field bcm2708-dmaengine supports residue reporting at burst level but didn't report this via the residue_granularity field. Without this field set properly we get playback issues with I2S cards. dmaengine: bcm2708-dmaengine: Fix memory leak when stopping a running transfer bcm2708-dmaengine: Use more DMA channels (but not 12) 1) Only the bcm2708_fb drivers uses the legacy DMA API, and it requires a BULK-capable channel, so all other types (FAST, NORMAL and LITE) can be made available to the regular DMA API. 2) DMA channels 11-14 share an interrupt. The driver can't handle this, so don't use channels 12-14 (12 was used, probably because it appears to have an interrupt, but in reality that interrupt is for activity on ANY channel). This may explain a lockup encountered when running out of DMA channels. The combined effect of this patch is to leave 7 DMA channels available + channel 0 for bcm2708_fb via the legacy API. See: https://github.com/raspberrypi/linux/issues/1110 https://github.com/raspberrypi/linux/issues/1108 dmaengine: bcm2708: Make legacy API available for bcm2835-dma bcm2708_fb uses the legacy DMA API, so in order to start using bcm2835-dma, bcm2835-dma has to support the legacy API. Make this possible by exporting bcm_dmaman_probe() and bcm_dmaman_remove(). Signed-off-by: Noralf Trønnes dmaengine: bcm2708: Change DT compatible string Both bcm2835-dma and bcm2708-dmaengine have the same compatible string. So change compatible to "brcm,bcm2708-dma". Signed-off-by: Noralf Trønnes dmaengine: bcm2708: Remove driver but keep legacy API Dropping non-DT support means we don't need this driver, but we still need the legacy DMA API. Signed-off-by: Noralf Trønnes bcm2708-dmaengine - Fix arm64 portability/build issues --- drivers/dma/Kconfig | 6 +- drivers/dma/Makefile | 1 + drivers/dma/bcm2708-dmaengine.c | 281 ++++++++++++++++++++++++++++++ include/linux/platform_data/dma-bcm2708.h | 143 +++++++++++++++ 4 files changed, 430 insertions(+), 1 deletion(-) create mode 100644 drivers/dma/bcm2708-dmaengine.c create mode 100644 include/linux/platform_data/dma-bcm2708.h diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index a754288fb8bec3dafea4952f5133703f4e42f7df..5485ce0b2004d87e0ac012e2559479b1f7da28e5 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -108,7 +108,7 @@ config COH901318 config DMA_BCM2835 tristate "BCM2835 DMA engine support" - depends on ARCH_BCM2835 || ARCH_BCM2708 || ARCH_BCM2709 + depends on ARCH_BCM2835 select DMA_ENGINE select DMA_VIRTUAL_CHANNELS @@ -513,6 +513,10 @@ config TIMB_DMA help Enable support for the Timberdale FPGA DMA engine. +config DMA_BCM2708 + tristate "BCM2708 DMA legacy API support" + depends on DMA_BCM2835 + config TI_CPPI41 tristate "AM33xx CPPI41 DMA support" depends on ARCH_OMAP diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile index 0b723e94d9e6d3751d1ceea4509b173cbd84b458..a114b110fc2277615ca2e3f4c58a9a20166ee58b 100644 --- a/drivers/dma/Makefile +++ b/drivers/dma/Makefile @@ -18,6 +18,7 @@ obj-$(CONFIG_AT_HDMAC) += at_hdmac.o obj-$(CONFIG_AT_XDMAC) += at_xdmac.o obj-$(CONFIG_AXI_DMAC) += dma-axi-dmac.o obj-$(CONFIG_COH901318) += coh901318.o coh901318_lli.o +obj-$(CONFIG_DMA_BCM2708) += bcm2708-dmaengine.o obj-$(CONFIG_DMA_BCM2835) += bcm2835-dma.o obj-$(CONFIG_DMA_JZ4740) += dma-jz4740.o obj-$(CONFIG_DMA_JZ4780) += dma-jz4780.o diff --git a/drivers/dma/bcm2708-dmaengine.c b/drivers/dma/bcm2708-dmaengine.c new file mode 100644 index 0000000000000000000000000000000000000000..0f4a26983e401c60647655dcb35afd58f37515a8 --- /dev/null +++ b/drivers/dma/bcm2708-dmaengine.c @@ -0,0 +1,281 @@ +/* + * BCM2708 legacy DMA API + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "virt-dma.h" + +#define CACHE_LINE_MASK 31 +#define DEFAULT_DMACHAN_BITMAP 0x10 /* channel 4 only */ + +/* valid only for channels 0 - 14, 15 has its own base address */ +#define BCM2708_DMA_CHAN(n) ((n) << 8) /* base address */ +#define BCM2708_DMA_CHANIO(dma_base, n) \ + ((void __iomem *)((char *)(dma_base) + BCM2708_DMA_CHAN(n))) + +struct vc_dmaman { + void __iomem *dma_base; + u32 chan_available; /* bitmap of available channels */ + u32 has_feature[BCM_DMA_FEATURE_COUNT]; /* bitmap of feature presence */ + struct mutex lock; +}; + +static struct device *dmaman_dev; /* we assume there's only one! */ +static struct vc_dmaman *g_dmaman; /* DMA manager */ + +/* DMA Auxiliary Functions */ + +/* A DMA buffer on an arbitrary boundary may separate a cache line into a + section inside the DMA buffer and another section outside it. + Even if we flush DMA buffers from the cache there is always the chance that + during a DMA someone will access the part of a cache line that is outside + the DMA buffer - which will then bring in unwelcome data. + Without being able to dictate our own buffer pools we must insist that + DMA buffers consist of a whole number of cache lines. +*/ +extern int bcm_sg_suitable_for_dma(struct scatterlist *sg_ptr, int sg_len) +{ + int i; + + for (i = 0; i < sg_len; i++) { + if (sg_ptr[i].offset & CACHE_LINE_MASK || + sg_ptr[i].length & CACHE_LINE_MASK) + return 0; + } + + return 1; +} +EXPORT_SYMBOL_GPL(bcm_sg_suitable_for_dma); + +extern void bcm_dma_start(void __iomem *dma_chan_base, + dma_addr_t control_block) +{ + dsb(sy); /* ARM data synchronization (push) operation */ + + writel(control_block, dma_chan_base + BCM2708_DMA_ADDR); + writel(BCM2708_DMA_ACTIVE, dma_chan_base + BCM2708_DMA_CS); +} +EXPORT_SYMBOL_GPL(bcm_dma_start); + +extern void bcm_dma_wait_idle(void __iomem *dma_chan_base) +{ + dsb(sy); + + /* ugly busy wait only option for now */ + while (readl(dma_chan_base + BCM2708_DMA_CS) & BCM2708_DMA_ACTIVE) + cpu_relax(); +} +EXPORT_SYMBOL_GPL(bcm_dma_wait_idle); + +extern bool bcm_dma_is_busy(void __iomem *dma_chan_base) +{ + dsb(sy); + + return readl(dma_chan_base + BCM2708_DMA_CS) & BCM2708_DMA_ACTIVE; +} +EXPORT_SYMBOL_GPL(bcm_dma_is_busy); + +/* Complete an ongoing DMA (assuming its results are to be ignored) + Does nothing if there is no DMA in progress. + This routine waits for the current AXI transfer to complete before + terminating the current DMA. If the current transfer is hung on a DREQ used + by an uncooperative peripheral the AXI transfer may never complete. In this + case the routine times out and return a non-zero error code. + Use of this routine doesn't guarantee that the ongoing or aborted DMA + does not produce an interrupt. +*/ +extern int bcm_dma_abort(void __iomem *dma_chan_base) +{ + unsigned long int cs; + int rc = 0; + + cs = readl(dma_chan_base + BCM2708_DMA_CS); + + if (BCM2708_DMA_ACTIVE & cs) { + long int timeout = 10000; + + /* write 0 to the active bit - pause the DMA */ + writel(0, dma_chan_base + BCM2708_DMA_CS); + + /* wait for any current AXI transfer to complete */ + while (0 != (cs & BCM2708_DMA_ISPAUSED) && --timeout >= 0) + cs = readl(dma_chan_base + BCM2708_DMA_CS); + + if (0 != (cs & BCM2708_DMA_ISPAUSED)) { + /* we'll un-pause when we set of our next DMA */ + rc = -ETIMEDOUT; + + } else if (BCM2708_DMA_ACTIVE & cs) { + /* terminate the control block chain */ + writel(0, dma_chan_base + BCM2708_DMA_NEXTCB); + + /* abort the whole DMA */ + writel(BCM2708_DMA_ABORT | BCM2708_DMA_ACTIVE, + dma_chan_base + BCM2708_DMA_CS); + } + } + + return rc; +} +EXPORT_SYMBOL_GPL(bcm_dma_abort); + + /* DMA Manager Device Methods */ + +static void vc_dmaman_init(struct vc_dmaman *dmaman, void __iomem *dma_base, + u32 chans_available) +{ + dmaman->dma_base = dma_base; + dmaman->chan_available = chans_available; + dmaman->has_feature[BCM_DMA_FEATURE_FAST_ORD] = 0x0c; /* 2 & 3 */ + dmaman->has_feature[BCM_DMA_FEATURE_BULK_ORD] = 0x01; /* 0 */ + dmaman->has_feature[BCM_DMA_FEATURE_NORMAL_ORD] = 0xfe; /* 1 to 7 */ + dmaman->has_feature[BCM_DMA_FEATURE_LITE_ORD] = 0x7f00; /* 8 to 14 */ +} + +static int vc_dmaman_chan_alloc(struct vc_dmaman *dmaman, + unsigned required_feature_set) +{ + u32 chans; + int chan = 0; + int feature; + + chans = dmaman->chan_available; + for (feature = 0; feature < BCM_DMA_FEATURE_COUNT; feature++) + /* select the subset of available channels with the desired + features */ + if (required_feature_set & (1 << feature)) + chans &= dmaman->has_feature[feature]; + + if (!chans) + return -ENOENT; + + /* return the ordinal of the first channel in the bitmap */ + while (chans != 0 && (chans & 1) == 0) { + chans >>= 1; + chan++; + } + /* claim the channel */ + dmaman->chan_available &= ~(1 << chan); + + return chan; +} + +static int vc_dmaman_chan_free(struct vc_dmaman *dmaman, int chan) +{ + if (chan < 0) + return -EINVAL; + + if ((1 << chan) & dmaman->chan_available) + return -EIDRM; + + dmaman->chan_available |= (1 << chan); + + return 0; +} + +/* DMA Manager Monitor */ + +extern int bcm_dma_chan_alloc(unsigned required_feature_set, + void __iomem **out_dma_base, int *out_dma_irq) +{ + struct vc_dmaman *dmaman = g_dmaman; + struct platform_device *pdev = to_platform_device(dmaman_dev); + struct resource *r; + int chan; + + if (!dmaman_dev) + return -ENODEV; + + mutex_lock(&dmaman->lock); + chan = vc_dmaman_chan_alloc(dmaman, required_feature_set); + if (chan < 0) + goto out; + + r = platform_get_resource(pdev, IORESOURCE_IRQ, (unsigned int)chan); + if (!r) { + dev_err(dmaman_dev, "failed to get irq for DMA channel %d\n", + chan); + vc_dmaman_chan_free(dmaman, chan); + chan = -ENOENT; + goto out; + } + + *out_dma_base = BCM2708_DMA_CHANIO(dmaman->dma_base, chan); + *out_dma_irq = r->start; + dev_dbg(dmaman_dev, + "Legacy API allocated channel=%d, base=%p, irq=%i\n", + chan, *out_dma_base, *out_dma_irq); + +out: + mutex_unlock(&dmaman->lock); + + return chan; +} +EXPORT_SYMBOL_GPL(bcm_dma_chan_alloc); + +extern int bcm_dma_chan_free(int channel) +{ + struct vc_dmaman *dmaman = g_dmaman; + int rc; + + if (!dmaman_dev) + return -ENODEV; + + mutex_lock(&dmaman->lock); + rc = vc_dmaman_chan_free(dmaman, channel); + mutex_unlock(&dmaman->lock); + + return rc; +} +EXPORT_SYMBOL_GPL(bcm_dma_chan_free); + +int bcm_dmaman_probe(struct platform_device *pdev, void __iomem *base, + u32 chans_available) +{ + struct device *dev = &pdev->dev; + struct vc_dmaman *dmaman; + + dmaman = devm_kzalloc(dev, sizeof(*dmaman), GFP_KERNEL); + if (!dmaman) + return -ENOMEM; + + mutex_init(&dmaman->lock); + vc_dmaman_init(dmaman, base, chans_available); + g_dmaman = dmaman; + dmaman_dev = dev; + + dev_info(dev, "DMA legacy API manager at %p, dmachans=0x%x\n", + base, chans_available); + + return 0; +} +EXPORT_SYMBOL(bcm_dmaman_probe); + +int bcm_dmaman_remove(struct platform_device *pdev) +{ + dmaman_dev = NULL; + + return 0; +} +EXPORT_SYMBOL(bcm_dmaman_remove); + +MODULE_LICENSE("GPL"); diff --git a/include/linux/platform_data/dma-bcm2708.h b/include/linux/platform_data/dma-bcm2708.h new file mode 100644 index 0000000000000000000000000000000000000000..c5bfff2765be4606077e6c8af73040ec13ee8974 --- /dev/null +++ b/include/linux/platform_data/dma-bcm2708.h @@ -0,0 +1,143 @@ +/* + * Copyright (C) 2010 Broadcom + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _PLAT_BCM2708_DMA_H +#define _PLAT_BCM2708_DMA_H + +/* DMA CS Control and Status bits */ +#define BCM2708_DMA_ACTIVE BIT(0) +#define BCM2708_DMA_INT BIT(2) +#define BCM2708_DMA_ISPAUSED BIT(4) /* Pause requested or not active */ +#define BCM2708_DMA_ISHELD BIT(5) /* Is held by DREQ flow control */ +#define BCM2708_DMA_ERR BIT(8) +#define BCM2708_DMA_ABORT BIT(30) /* stop current CB, go to next, WO */ +#define BCM2708_DMA_RESET BIT(31) /* WO, self clearing */ + +/* DMA control block "info" field bits */ +#define BCM2708_DMA_INT_EN BIT(0) +#define BCM2708_DMA_TDMODE BIT(1) +#define BCM2708_DMA_WAIT_RESP BIT(3) +#define BCM2708_DMA_D_INC BIT(4) +#define BCM2708_DMA_D_WIDTH BIT(5) +#define BCM2708_DMA_D_DREQ BIT(6) +#define BCM2708_DMA_S_INC BIT(8) +#define BCM2708_DMA_S_WIDTH BIT(9) +#define BCM2708_DMA_S_DREQ BIT(10) + +#define BCM2708_DMA_BURST(x) (((x) & 0xf) << 12) +#define BCM2708_DMA_PER_MAP(x) ((x) << 16) +#define BCM2708_DMA_WAITS(x) (((x) & 0x1f) << 21) + +#define BCM2708_DMA_DREQ_EMMC 11 +#define BCM2708_DMA_DREQ_SDHOST 13 + +#define BCM2708_DMA_CS 0x00 /* Control and Status */ +#define BCM2708_DMA_ADDR 0x04 +/* the current control block appears in the following registers - read only */ +#define BCM2708_DMA_INFO 0x08 +#define BCM2708_DMA_SOURCE_AD 0x0c +#define BCM2708_DMA_DEST_AD 0x10 +#define BCM2708_DMA_NEXTCB 0x1C +#define BCM2708_DMA_DEBUG 0x20 + +#define BCM2708_DMA4_CS (BCM2708_DMA_CHAN(4) + BCM2708_DMA_CS) +#define BCM2708_DMA4_ADDR (BCM2708_DMA_CHAN(4) + BCM2708_DMA_ADDR) + +#define BCM2708_DMA_TDMODE_LEN(w, h) ((h) << 16 | (w)) + +/* When listing features we can ask for when allocating DMA channels give + those with higher priority smaller ordinal numbers */ +#define BCM_DMA_FEATURE_FAST_ORD 0 +#define BCM_DMA_FEATURE_BULK_ORD 1 +#define BCM_DMA_FEATURE_NORMAL_ORD 2 +#define BCM_DMA_FEATURE_LITE_ORD 3 +#define BCM_DMA_FEATURE_FAST BIT(BCM_DMA_FEATURE_FAST_ORD) +#define BCM_DMA_FEATURE_BULK BIT(BCM_DMA_FEATURE_BULK_ORD) +#define BCM_DMA_FEATURE_NORMAL BIT(BCM_DMA_FEATURE_NORMAL_ORD) +#define BCM_DMA_FEATURE_LITE BIT(BCM_DMA_FEATURE_LITE_ORD) +#define BCM_DMA_FEATURE_COUNT 4 + +struct bcm2708_dma_cb { + u32 info; + u32 src; + u32 dst; + u32 length; + u32 stride; + u32 next; + u32 pad[2]; +}; + +struct scatterlist; +struct platform_device; + +#ifdef CONFIG_DMA_BCM2708 + +int bcm_sg_suitable_for_dma(struct scatterlist *sg_ptr, int sg_len); +void bcm_dma_start(void __iomem *dma_chan_base, dma_addr_t control_block); +void bcm_dma_wait_idle(void __iomem *dma_chan_base); +bool bcm_dma_is_busy(void __iomem *dma_chan_base); +int bcm_dma_abort(void __iomem *dma_chan_base); + +/* return channel no or -ve error */ +int bcm_dma_chan_alloc(unsigned preferred_feature_set, + void __iomem **out_dma_base, int *out_dma_irq); +int bcm_dma_chan_free(int channel); + +int bcm_dmaman_probe(struct platform_device *pdev, void __iomem *base, + u32 chans_available); +int bcm_dmaman_remove(struct platform_device *pdev); + +#else /* CONFIG_DMA_BCM2708 */ + +static inline int bcm_sg_suitable_for_dma(struct scatterlist *sg_ptr, + int sg_len) +{ + return 0; +} + +static inline void bcm_dma_start(void __iomem *dma_chan_base, + dma_addr_t control_block) { } + +static inline void bcm_dma_wait_idle(void __iomem *dma_chan_base) { } + +static inline bool bcm_dma_is_busy(void __iomem *dma_chan_base) +{ + return false; +} + +static inline int bcm_dma_abort(void __iomem *dma_chan_base) +{ + return -EINVAL; +} + +static inline int bcm_dma_chan_alloc(unsigned preferred_feature_set, + void __iomem **out_dma_base, + int *out_dma_irq) +{ + return -EINVAL; +} + +static inline int bcm_dma_chan_free(int channel) +{ + return -EINVAL; +} + +static inline int bcm_dmaman_probe(struct platform_device *pdev, + void __iomem *base, u32 chans_available) +{ + return 0; +} + +static inline int bcm_dmaman_remove(struct platform_device *pdev) +{ + return 0; +} + +#endif /* CONFIG_DMA_BCM2708 */ + +#endif /* _PLAT_BCM2708_DMA_H */ From a5a47d3afb09bdd8ca71d041f2d353cfb1ada9a4 Mon Sep 17 00:00:00 2001 From: gellert Date: Fri, 15 Aug 2014 16:35:06 +0100 Subject: [PATCH 041/165] MMC: added alternative MMC driver MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit mmc: Disable CMD23 transfers on all cards Pending wire-level investigation of these types of transfers and associated errors on bcm2835-mmc, disable for now. Fallback of CMD18/CMD25 transfers will be used automatically by the MMC layer. Reported/Tested-by: Gellert Weisz mmc: bcm2835-mmc: enable DT support for all architectures Both ARCH_BCM2835 and ARCH_BCM270x are built with OF now. Enable Device Tree support for all architectures. Signed-off-by: Noralf Trønnes mmc: bcm2835-mmc: fix probe error handling Probe error handling is broken in several places. Simplify error handling by using device managed functions. Replace pr_{err,info} with dev_{err,info}. Signed-off-by: Noralf Trønnes bcm2835-mmc: Add locks when accessing sdhost registers bcm2835-mmc: Add range of debug options for slowing things down bcm2835-mmc: Add option to disable some delays bcm2835-mmc: Add option to disable MMC_QUIRK_BLK_NO_CMD23 bcm2835-mmc: Default to disabling MMC_QUIRK_BLK_NO_CMD23 bcm2835-mmc: Adding overclocking option Allow a different clock speed to be substitued for a requested 50MHz. This option is exposed using the "overclock_50" DT parameter. Note that the mmc interface is restricted to EVEN integer divisions of 250MHz, and the highest sensible option is 63 (250/4 = 62.5), the next being 125 (250/2) which is much too high. Use at your own risk. bcm2835-mmc: Round up the overclock, so 62 works for 62.5Mhz Also only warn once for each overclock setting. mmc: bcm2835-mmc: Make available on ARCH_BCM2835 Make the bcm2835-mmc driver available for use on ARCH_BCM2835. Signed-off-by: Noralf Trønnes BCM270x_DT: add bcm2835-mmc entry Add Device Tree entry for bcm2835-mmc. In non-DT mode, don't add the device in the board file. Signed-off-by: Noralf Trønnes bcm2835-mmc: Don't overwrite MMC capabilities from DT bcm2835-mmc: Don't override bus width capabilities from devicetree Take out the force setting of the MMC_CAP_4_BIT_DATA host capability so that the result read from devicetree via mmc_of_parse() is preserved. bcm2835-mmc: Only claim one DMA channel With both MMC controllers enabled there are few DMA channels left. The bcm2835-mmc driver only uses DMA in one direction at a time, so it doesn't need to claim two channels. See: https://github.com/raspberrypi/linux/issues/1327 Signed-off-by: Phil Elwell --- drivers/mmc/host/Kconfig | 29 + drivers/mmc/host/Makefile | 1 + drivers/mmc/host/bcm2835-mmc.c | 1574 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 1604 insertions(+) create mode 100644 drivers/mmc/host/bcm2835-mmc.c diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig index f08691a58d7e02220e8a3ef7d6c552eef7c2a79d..77142222a730b76d46a2492fef8f6f1773072687 100644 --- a/drivers/mmc/host/Kconfig +++ b/drivers/mmc/host/Kconfig @@ -4,6 +4,35 @@ comment "MMC/SD/SDIO Host Controller Drivers" +config MMC_BCM2835 + tristate "MMC support on BCM2835" + depends on MACH_BCM2708 || MACH_BCM2709 || ARCH_BCM2835 + help + This selects the MMC Interface on BCM2835. + + If you have a controller with this interface, say Y or M here. + + If unsure, say N. + +config MMC_BCM2835_DMA + bool "DMA support on BCM2835 Arasan controller" + depends on MMC_BCM2835 + help + Enable DMA support on the Arasan SDHCI controller in Broadcom 2708 + based chips. + + If unsure, say N. + +config MMC_BCM2835_PIO_DMA_BARRIER + int "Block count limit for PIO transfers" + depends on MMC_BCM2835 && MMC_BCM2835_DMA + range 0 256 + default 2 + help + The inclusive limit in bytes under which PIO will be used instead of DMA + + If unsure, say 2 here. + config MMC_ARMMMCI tristate "ARM AMBA Multimedia Card Interface support" depends on ARM_AMBA diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile index 6d548c4ee2fa311ce75b02bbbdd3ca53e9d68788..c987038c9f3a1cea98931efe868c933b767c1664 100644 --- a/drivers/mmc/host/Makefile +++ b/drivers/mmc/host/Makefile @@ -18,6 +18,7 @@ obj-$(CONFIG_MMC_SDHCI_S3C) += sdhci-s3c.o obj-$(CONFIG_MMC_SDHCI_SIRF) += sdhci-sirf.o obj-$(CONFIG_MMC_SDHCI_F_SDH30) += sdhci_f_sdh30.o obj-$(CONFIG_MMC_SDHCI_SPEAR) += sdhci-spear.o +obj-$(CONFIG_MMC_BCM2835) += bcm2835-mmc.o obj-$(CONFIG_MMC_WBSD) += wbsd.o obj-$(CONFIG_MMC_AU1X) += au1xmmc.o obj-$(CONFIG_MMC_MTK) += mtk-sd.o diff --git a/drivers/mmc/host/bcm2835-mmc.c b/drivers/mmc/host/bcm2835-mmc.c new file mode 100644 index 0000000000000000000000000000000000000000..4fe8d1fe44578fbefcd48f8c327ba3d03f3d0a2a --- /dev/null +++ b/drivers/mmc/host/bcm2835-mmc.c @@ -0,0 +1,1574 @@ +/* + * BCM2835 MMC host driver. + * + * Author: Gellert Weisz + * Copyright 2014 + * + * Based on + * sdhci-bcm2708.c by Broadcom + * sdhci-bcm2835.c by Stephen Warren and Oleksandr Tymoshenko + * sdhci.c and sdhci-pci.c by Pierre Ossman + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "sdhci.h" + + +#define DRIVER_NAME "mmc-bcm2835" + +#define DBG(f, x...) \ +pr_debug(DRIVER_NAME " [%s()]: " f, __func__, ## x) + +#ifndef CONFIG_MMC_BCM2835_DMA + #define FORCE_PIO +#endif + + +/* the inclusive limit in bytes under which PIO will be used instead of DMA */ +#ifdef CONFIG_MMC_BCM2835_PIO_DMA_BARRIER +#define PIO_DMA_BARRIER CONFIG_MMC_BCM2835_PIO_DMA_BARRIER +#else +#define PIO_DMA_BARRIER 00 +#endif + +#define MIN_FREQ 400000 +#define TIMEOUT_VAL 0xE +#define BCM2835_SDHCI_WRITE_DELAY(f) (((2 * 1000000) / f) + 1) + + +unsigned mmc_debug; +unsigned mmc_debug2; + +struct bcm2835_host { + spinlock_t lock; + + void __iomem *ioaddr; + u32 bus_addr; + + struct mmc_host *mmc; + + u32 timeout; + + int clock; /* Current clock speed */ + u8 pwr; /* Current voltage */ + + unsigned int max_clk; /* Max possible freq */ + unsigned int timeout_clk; /* Timeout freq (KHz) */ + unsigned int clk_mul; /* Clock Muliplier value */ + + struct tasklet_struct finish_tasklet; /* Tasklet structures */ + + struct timer_list timer; /* Timer for timeouts */ + + struct sg_mapping_iter sg_miter; /* SG state for PIO */ + unsigned int blocks; /* remaining PIO blocks */ + + int irq; /* Device IRQ */ + + + u32 ier; /* cached registers */ + + struct mmc_request *mrq; /* Current request */ + struct mmc_command *cmd; /* Current command */ + struct mmc_data *data; /* Current data request */ + unsigned int data_early:1; /* Data finished before cmd */ + + wait_queue_head_t buf_ready_int; /* Waitqueue for Buffer Read Ready interrupt */ + + u32 thread_isr; + + u32 shadow; + + /*DMA part*/ + struct dma_chan *dma_chan_rxtx; /* DMA channel for reads and writes */ + struct dma_slave_config dma_cfg_rx; + struct dma_slave_config dma_cfg_tx; + struct dma_async_tx_descriptor *tx_desc; /* descriptor */ + + bool have_dma; + bool use_dma; + /*end of DMA part*/ + + int max_delay; /* maximum length of time spent waiting */ + + int flags; /* Host attributes */ +#define SDHCI_REQ_USE_DMA (1<<2) /* Use DMA for this req. */ +#define SDHCI_DEVICE_DEAD (1<<3) /* Device unresponsive */ +#define SDHCI_AUTO_CMD12 (1<<6) /* Auto CMD12 support */ +#define SDHCI_AUTO_CMD23 (1<<7) /* Auto CMD23 support */ +#define SDHCI_SDIO_IRQ_ENABLED (1<<9) /* SDIO irq enabled */ + + u32 overclock_50; /* frequency to use when 50MHz is requested (in MHz) */ + u32 max_overclock; /* Highest reported */ +}; + + +static inline void bcm2835_mmc_writel(struct bcm2835_host *host, u32 val, int reg, int from) +{ + unsigned delay; + lockdep_assert_held_once(&host->lock); + writel(val, host->ioaddr + reg); + udelay(BCM2835_SDHCI_WRITE_DELAY(max(host->clock, MIN_FREQ))); + + delay = ((mmc_debug >> 16) & 0xf) << ((mmc_debug >> 20) & 0xf); + if (delay && !((1<lock); + writel(val, host->ioaddr + reg); + + delay = ((mmc_debug >> 24) & 0xf) << ((mmc_debug >> 28) & 0xf); + if (delay) + udelay(delay); +} + +static inline u32 bcm2835_mmc_readl(struct bcm2835_host *host, int reg) +{ + lockdep_assert_held_once(&host->lock); + return readl(host->ioaddr + reg); +} + +static inline void bcm2835_mmc_writew(struct bcm2835_host *host, u16 val, int reg) +{ + u32 oldval = (reg == SDHCI_COMMAND) ? host->shadow : + bcm2835_mmc_readl(host, reg & ~3); + u32 word_num = (reg >> 1) & 1; + u32 word_shift = word_num * 16; + u32 mask = 0xffff << word_shift; + u32 newval = (oldval & ~mask) | (val << word_shift); + + if (reg == SDHCI_TRANSFER_MODE) + host->shadow = newval; + else + bcm2835_mmc_writel(host, newval, reg & ~3, 0); + +} + +static inline void bcm2835_mmc_writeb(struct bcm2835_host *host, u8 val, int reg) +{ + u32 oldval = bcm2835_mmc_readl(host, reg & ~3); + u32 byte_num = reg & 3; + u32 byte_shift = byte_num * 8; + u32 mask = 0xff << byte_shift; + u32 newval = (oldval & ~mask) | (val << byte_shift); + + bcm2835_mmc_writel(host, newval, reg & ~3, 1); +} + + +static inline u16 bcm2835_mmc_readw(struct bcm2835_host *host, int reg) +{ + u32 val = bcm2835_mmc_readl(host, (reg & ~3)); + u32 word_num = (reg >> 1) & 1; + u32 word_shift = word_num * 16; + u32 word = (val >> word_shift) & 0xffff; + + return word; +} + +static inline u8 bcm2835_mmc_readb(struct bcm2835_host *host, int reg) +{ + u32 val = bcm2835_mmc_readl(host, (reg & ~3)); + u32 byte_num = reg & 3; + u32 byte_shift = byte_num * 8; + u32 byte = (val >> byte_shift) & 0xff; + + return byte; +} + +static void bcm2835_mmc_unsignal_irqs(struct bcm2835_host *host, u32 clear) +{ + u32 ier; + + ier = bcm2835_mmc_readl(host, SDHCI_SIGNAL_ENABLE); + ier &= ~clear; + /* change which requests generate IRQs - makes no difference to + the content of SDHCI_INT_STATUS, or the need to acknowledge IRQs */ + bcm2835_mmc_writel(host, ier, SDHCI_SIGNAL_ENABLE, 2); +} + + +static void bcm2835_mmc_dumpregs(struct bcm2835_host *host) +{ + pr_debug(DRIVER_NAME ": =========== REGISTER DUMP (%s)===========\n", + mmc_hostname(host->mmc)); + + pr_debug(DRIVER_NAME ": Sys addr: 0x%08x | Version: 0x%08x\n", + bcm2835_mmc_readl(host, SDHCI_DMA_ADDRESS), + bcm2835_mmc_readw(host, SDHCI_HOST_VERSION)); + pr_debug(DRIVER_NAME ": Blk size: 0x%08x | Blk cnt: 0x%08x\n", + bcm2835_mmc_readw(host, SDHCI_BLOCK_SIZE), + bcm2835_mmc_readw(host, SDHCI_BLOCK_COUNT)); + pr_debug(DRIVER_NAME ": Argument: 0x%08x | Trn mode: 0x%08x\n", + bcm2835_mmc_readl(host, SDHCI_ARGUMENT), + bcm2835_mmc_readw(host, SDHCI_TRANSFER_MODE)); + pr_debug(DRIVER_NAME ": Present: 0x%08x | Host ctl: 0x%08x\n", + bcm2835_mmc_readl(host, SDHCI_PRESENT_STATE), + bcm2835_mmc_readb(host, SDHCI_HOST_CONTROL)); + pr_debug(DRIVER_NAME ": Power: 0x%08x | Blk gap: 0x%08x\n", + bcm2835_mmc_readb(host, SDHCI_POWER_CONTROL), + bcm2835_mmc_readb(host, SDHCI_BLOCK_GAP_CONTROL)); + pr_debug(DRIVER_NAME ": Wake-up: 0x%08x | Clock: 0x%08x\n", + bcm2835_mmc_readb(host, SDHCI_WAKE_UP_CONTROL), + bcm2835_mmc_readw(host, SDHCI_CLOCK_CONTROL)); + pr_debug(DRIVER_NAME ": Timeout: 0x%08x | Int stat: 0x%08x\n", + bcm2835_mmc_readb(host, SDHCI_TIMEOUT_CONTROL), + bcm2835_mmc_readl(host, SDHCI_INT_STATUS)); + pr_debug(DRIVER_NAME ": Int enab: 0x%08x | Sig enab: 0x%08x\n", + bcm2835_mmc_readl(host, SDHCI_INT_ENABLE), + bcm2835_mmc_readl(host, SDHCI_SIGNAL_ENABLE)); + pr_debug(DRIVER_NAME ": AC12 err: 0x%08x | Slot int: 0x%08x\n", + bcm2835_mmc_readw(host, SDHCI_ACMD12_ERR), + bcm2835_mmc_readw(host, SDHCI_SLOT_INT_STATUS)); + pr_debug(DRIVER_NAME ": Caps: 0x%08x | Caps_1: 0x%08x\n", + bcm2835_mmc_readl(host, SDHCI_CAPABILITIES), + bcm2835_mmc_readl(host, SDHCI_CAPABILITIES_1)); + pr_debug(DRIVER_NAME ": Cmd: 0x%08x | Max curr: 0x%08x\n", + bcm2835_mmc_readw(host, SDHCI_COMMAND), + bcm2835_mmc_readl(host, SDHCI_MAX_CURRENT)); + pr_debug(DRIVER_NAME ": Host ctl2: 0x%08x\n", + bcm2835_mmc_readw(host, SDHCI_HOST_CONTROL2)); + + pr_debug(DRIVER_NAME ": ===========================================\n"); +} + + +static void bcm2835_mmc_reset(struct bcm2835_host *host, u8 mask) +{ + unsigned long timeout; + unsigned long flags; + + spin_lock_irqsave(&host->lock, flags); + bcm2835_mmc_writeb(host, mask, SDHCI_SOFTWARE_RESET); + + if (mask & SDHCI_RESET_ALL) + host->clock = 0; + + /* Wait max 100 ms */ + timeout = 100; + + /* hw clears the bit when it's done */ + while (bcm2835_mmc_readb(host, SDHCI_SOFTWARE_RESET) & mask) { + if (timeout == 0) { + pr_err("%s: Reset 0x%x never completed.\n", + mmc_hostname(host->mmc), (int)mask); + bcm2835_mmc_dumpregs(host); + return; + } + timeout--; + spin_unlock_irqrestore(&host->lock, flags); + mdelay(1); + spin_lock_irqsave(&host->lock, flags); + } + + if (100-timeout > 10 && 100-timeout > host->max_delay) { + host->max_delay = 100-timeout; + pr_warning("Warning: MMC controller hung for %d ms\n", host->max_delay); + } + spin_unlock_irqrestore(&host->lock, flags); +} + +static void bcm2835_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios); + +static void bcm2835_mmc_init(struct bcm2835_host *host, int soft) +{ + unsigned long flags; + if (soft) + bcm2835_mmc_reset(host, SDHCI_RESET_CMD|SDHCI_RESET_DATA); + else + bcm2835_mmc_reset(host, SDHCI_RESET_ALL); + + host->ier = SDHCI_INT_BUS_POWER | SDHCI_INT_DATA_END_BIT | + SDHCI_INT_DATA_CRC | SDHCI_INT_DATA_TIMEOUT | + SDHCI_INT_INDEX | SDHCI_INT_END_BIT | SDHCI_INT_CRC | + SDHCI_INT_TIMEOUT | SDHCI_INT_DATA_END | + SDHCI_INT_RESPONSE; + + spin_lock_irqsave(&host->lock, flags); + bcm2835_mmc_writel(host, host->ier, SDHCI_INT_ENABLE, 3); + bcm2835_mmc_writel(host, host->ier, SDHCI_SIGNAL_ENABLE, 3); + spin_unlock_irqrestore(&host->lock, flags); + + if (soft) { + /* force clock reconfiguration */ + host->clock = 0; + bcm2835_mmc_set_ios(host->mmc, &host->mmc->ios); + } +} + + + +static void bcm2835_mmc_finish_data(struct bcm2835_host *host); + +static void bcm2835_mmc_dma_complete(void *param) +{ + struct bcm2835_host *host = param; + struct dma_chan *dma_chan; + unsigned long flags; + u32 dir_data; + + spin_lock_irqsave(&host->lock, flags); + + if (host->data && !(host->data->flags & MMC_DATA_WRITE)) { + /* otherwise handled in SDHCI IRQ */ + dma_chan = host->dma_chan_rxtx; + dir_data = DMA_FROM_DEVICE; + + dma_unmap_sg(dma_chan->device->dev, + host->data->sg, host->data->sg_len, + dir_data); + + bcm2835_mmc_finish_data(host); + } + + spin_unlock_irqrestore(&host->lock, flags); +} + +static void bcm2835_bcm2835_mmc_read_block_pio(struct bcm2835_host *host) +{ + unsigned long flags; + size_t blksize, len, chunk; + + u32 uninitialized_var(scratch); + u8 *buf; + + blksize = host->data->blksz; + chunk = 0; + + local_irq_save(flags); + + while (blksize) { + if (!sg_miter_next(&host->sg_miter)) + BUG(); + + len = min(host->sg_miter.length, blksize); + + blksize -= len; + host->sg_miter.consumed = len; + + buf = host->sg_miter.addr; + + while (len) { + if (chunk == 0) { + scratch = bcm2835_mmc_readl(host, SDHCI_BUFFER); + chunk = 4; + } + + *buf = scratch & 0xFF; + + buf++; + scratch >>= 8; + chunk--; + len--; + } + } + + sg_miter_stop(&host->sg_miter); + + local_irq_restore(flags); +} + +static void bcm2835_bcm2835_mmc_write_block_pio(struct bcm2835_host *host) +{ + unsigned long flags; + size_t blksize, len, chunk; + u32 scratch; + u8 *buf; + + blksize = host->data->blksz; + chunk = 0; + chunk = 0; + scratch = 0; + + local_irq_save(flags); + + while (blksize) { + if (!sg_miter_next(&host->sg_miter)) + BUG(); + + len = min(host->sg_miter.length, blksize); + + blksize -= len; + host->sg_miter.consumed = len; + + buf = host->sg_miter.addr; + + while (len) { + scratch |= (u32)*buf << (chunk * 8); + + buf++; + chunk++; + len--; + + if ((chunk == 4) || ((len == 0) && (blksize == 0))) { + mmc_raw_writel(host, scratch, SDHCI_BUFFER); + chunk = 0; + scratch = 0; + } + } + } + + sg_miter_stop(&host->sg_miter); + + local_irq_restore(flags); +} + + +static void bcm2835_mmc_transfer_pio(struct bcm2835_host *host) +{ + u32 mask; + + BUG_ON(!host->data); + + if (host->blocks == 0) + return; + + if (host->data->flags & MMC_DATA_READ) + mask = SDHCI_DATA_AVAILABLE; + else + mask = SDHCI_SPACE_AVAILABLE; + + while (bcm2835_mmc_readl(host, SDHCI_PRESENT_STATE) & mask) { + + if (host->data->flags & MMC_DATA_READ) + bcm2835_bcm2835_mmc_read_block_pio(host); + else + bcm2835_bcm2835_mmc_write_block_pio(host); + + host->blocks--; + + /* QUIRK used in sdhci.c removes the 'if' */ + /* but it seems this is unnecessary */ + if (host->blocks == 0) + break; + + + } +} + + +static void bcm2835_mmc_transfer_dma(struct bcm2835_host *host) +{ + u32 len, dir_data, dir_slave; + struct dma_async_tx_descriptor *desc = NULL; + struct dma_chan *dma_chan; + + + WARN_ON(!host->data); + + if (!host->data) + return; + + if (host->blocks == 0) + return; + + dma_chan = host->dma_chan_rxtx; + if (host->data->flags & MMC_DATA_READ) { + dir_data = DMA_FROM_DEVICE; + dir_slave = DMA_DEV_TO_MEM; + } else { + dir_data = DMA_TO_DEVICE; + dir_slave = DMA_MEM_TO_DEV; + } + + /* The parameters have already been validated, so this will not fail */ + (void)dmaengine_slave_config(dma_chan, + (dir_data == DMA_FROM_DEVICE) ? + &host->dma_cfg_rx : + &host->dma_cfg_tx); + + BUG_ON(!dma_chan->device); + BUG_ON(!dma_chan->device->dev); + BUG_ON(!host->data->sg); + + len = dma_map_sg(dma_chan->device->dev, host->data->sg, + host->data->sg_len, dir_data); + if (len > 0) { + desc = dmaengine_prep_slave_sg(dma_chan, host->data->sg, + len, dir_slave, + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); + } else { + dev_err(mmc_dev(host->mmc), "dma_map_sg returned zero length\n"); + } + if (desc) { + unsigned long flags; + spin_lock_irqsave(&host->lock, flags); + bcm2835_mmc_unsignal_irqs(host, SDHCI_INT_DATA_AVAIL | + SDHCI_INT_SPACE_AVAIL); + host->tx_desc = desc; + desc->callback = bcm2835_mmc_dma_complete; + desc->callback_param = host; + spin_unlock_irqrestore(&host->lock, flags); + dmaengine_submit(desc); + dma_async_issue_pending(dma_chan); + } + +} + + + +static void bcm2835_mmc_set_transfer_irqs(struct bcm2835_host *host) +{ + u32 pio_irqs = SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL; + u32 dma_irqs = SDHCI_INT_DMA_END | SDHCI_INT_ADMA_ERROR; + + if (host->use_dma) + host->ier = (host->ier & ~pio_irqs) | dma_irqs; + else + host->ier = (host->ier & ~dma_irqs) | pio_irqs; + + bcm2835_mmc_writel(host, host->ier, SDHCI_INT_ENABLE, 4); + bcm2835_mmc_writel(host, host->ier, SDHCI_SIGNAL_ENABLE, 4); +} + + +static void bcm2835_mmc_prepare_data(struct bcm2835_host *host, struct mmc_command *cmd) +{ + u8 count; + struct mmc_data *data = cmd->data; + + WARN_ON(host->data); + + if (data || (cmd->flags & MMC_RSP_BUSY)) { + count = TIMEOUT_VAL; + bcm2835_mmc_writeb(host, count, SDHCI_TIMEOUT_CONTROL); + } + + if (!data) + return; + + /* Sanity checks */ + BUG_ON(data->blksz * data->blocks > 524288); + BUG_ON(data->blksz > host->mmc->max_blk_size); + BUG_ON(data->blocks > 65535); + + host->data = data; + host->data_early = 0; + host->data->bytes_xfered = 0; + + + if (!(host->flags & SDHCI_REQ_USE_DMA)) { + int flags; + + flags = SG_MITER_ATOMIC; + if (host->data->flags & MMC_DATA_READ) + flags |= SG_MITER_TO_SG; + else + flags |= SG_MITER_FROM_SG; + sg_miter_start(&host->sg_miter, data->sg, data->sg_len, flags); + host->blocks = data->blocks; + } + + host->use_dma = host->have_dma && data->blocks > PIO_DMA_BARRIER; + + bcm2835_mmc_set_transfer_irqs(host); + + /* Set the DMA boundary value and block size */ + bcm2835_mmc_writew(host, SDHCI_MAKE_BLKSZ(SDHCI_DEFAULT_BOUNDARY_ARG, + data->blksz), SDHCI_BLOCK_SIZE); + bcm2835_mmc_writew(host, data->blocks, SDHCI_BLOCK_COUNT); + + BUG_ON(!host->data); +} + +static void bcm2835_mmc_set_transfer_mode(struct bcm2835_host *host, + struct mmc_command *cmd) +{ + u16 mode; + struct mmc_data *data = cmd->data; + + if (data == NULL) { + /* clear Auto CMD settings for no data CMDs */ + mode = bcm2835_mmc_readw(host, SDHCI_TRANSFER_MODE); + bcm2835_mmc_writew(host, mode & ~(SDHCI_TRNS_AUTO_CMD12 | + SDHCI_TRNS_AUTO_CMD23), SDHCI_TRANSFER_MODE); + return; + } + + WARN_ON(!host->data); + + mode = SDHCI_TRNS_BLK_CNT_EN; + + if ((mmc_op_multi(cmd->opcode) || data->blocks > 1)) { + mode |= SDHCI_TRNS_MULTI; + + /* + * If we are sending CMD23, CMD12 never gets sent + * on successful completion (so no Auto-CMD12). + */ + if (!host->mrq->sbc && (host->flags & SDHCI_AUTO_CMD12)) + mode |= SDHCI_TRNS_AUTO_CMD12; + else if (host->mrq->sbc && (host->flags & SDHCI_AUTO_CMD23)) { + mode |= SDHCI_TRNS_AUTO_CMD23; + bcm2835_mmc_writel(host, host->mrq->sbc->arg, SDHCI_ARGUMENT2, 5); + } + } + + if (data->flags & MMC_DATA_READ) + mode |= SDHCI_TRNS_READ; + if (host->flags & SDHCI_REQ_USE_DMA) + mode |= SDHCI_TRNS_DMA; + + bcm2835_mmc_writew(host, mode, SDHCI_TRANSFER_MODE); +} + +void bcm2835_mmc_send_command(struct bcm2835_host *host, struct mmc_command *cmd) +{ + int flags; + u32 mask; + unsigned long timeout; + + WARN_ON(host->cmd); + + /* Wait max 10 ms */ + timeout = 1000; + + mask = SDHCI_CMD_INHIBIT; + if ((cmd->data != NULL) || (cmd->flags & MMC_RSP_BUSY)) + mask |= SDHCI_DATA_INHIBIT; + + /* We shouldn't wait for data inihibit for stop commands, even + though they might use busy signaling */ + if (host->mrq->data && (cmd == host->mrq->data->stop)) + mask &= ~SDHCI_DATA_INHIBIT; + + while (bcm2835_mmc_readl(host, SDHCI_PRESENT_STATE) & mask) { + if (timeout == 0) { + pr_err("%s: Controller never released inhibit bit(s).\n", + mmc_hostname(host->mmc)); + bcm2835_mmc_dumpregs(host); + cmd->error = -EIO; + tasklet_schedule(&host->finish_tasklet); + return; + } + timeout--; + udelay(10); + } + + if ((1000-timeout)/100 > 1 && (1000-timeout)/100 > host->max_delay) { + host->max_delay = (1000-timeout)/100; + pr_warning("Warning: MMC controller hung for %d ms\n", host->max_delay); + } + + timeout = jiffies; + if (!cmd->data && cmd->busy_timeout > 9000) + timeout += DIV_ROUND_UP(cmd->busy_timeout, 1000) * HZ + HZ; + else + timeout += 10 * HZ; + mod_timer(&host->timer, timeout); + + host->cmd = cmd; + + bcm2835_mmc_prepare_data(host, cmd); + + bcm2835_mmc_writel(host, cmd->arg, SDHCI_ARGUMENT, 6); + + bcm2835_mmc_set_transfer_mode(host, cmd); + + if ((cmd->flags & MMC_RSP_136) && (cmd->flags & MMC_RSP_BUSY)) { + pr_err("%s: Unsupported response type!\n", + mmc_hostname(host->mmc)); + cmd->error = -EINVAL; + tasklet_schedule(&host->finish_tasklet); + return; + } + + if (!(cmd->flags & MMC_RSP_PRESENT)) + flags = SDHCI_CMD_RESP_NONE; + else if (cmd->flags & MMC_RSP_136) + flags = SDHCI_CMD_RESP_LONG; + else if (cmd->flags & MMC_RSP_BUSY) + flags = SDHCI_CMD_RESP_SHORT_BUSY; + else + flags = SDHCI_CMD_RESP_SHORT; + + if (cmd->flags & MMC_RSP_CRC) + flags |= SDHCI_CMD_CRC; + if (cmd->flags & MMC_RSP_OPCODE) + flags |= SDHCI_CMD_INDEX; + + if (cmd->data) + flags |= SDHCI_CMD_DATA; + + bcm2835_mmc_writew(host, SDHCI_MAKE_CMD(cmd->opcode, flags), SDHCI_COMMAND); +} + + +static void bcm2835_mmc_finish_data(struct bcm2835_host *host) +{ + struct mmc_data *data; + + BUG_ON(!host->data); + + data = host->data; + host->data = NULL; + + if (data->error) + data->bytes_xfered = 0; + else + data->bytes_xfered = data->blksz * data->blocks; + + /* + * Need to send CMD12 if - + * a) open-ended multiblock transfer (no CMD23) + * b) error in multiblock transfer + */ + if (data->stop && + (data->error || + !host->mrq->sbc)) { + + /* + * The controller needs a reset of internal state machines + * upon error conditions. + */ + if (data->error) { + bcm2835_mmc_reset(host, SDHCI_RESET_CMD); + bcm2835_mmc_reset(host, SDHCI_RESET_DATA); + } + + bcm2835_mmc_send_command(host, data->stop); + } else + tasklet_schedule(&host->finish_tasklet); +} + +static void bcm2835_mmc_finish_command(struct bcm2835_host *host) +{ + int i; + + BUG_ON(host->cmd == NULL); + + if (host->cmd->flags & MMC_RSP_PRESENT) { + if (host->cmd->flags & MMC_RSP_136) { + /* CRC is stripped so we need to do some shifting. */ + for (i = 0; i < 4; i++) { + host->cmd->resp[i] = bcm2835_mmc_readl(host, + SDHCI_RESPONSE + (3-i)*4) << 8; + if (i != 3) + host->cmd->resp[i] |= + bcm2835_mmc_readb(host, + SDHCI_RESPONSE + (3-i)*4-1); + } + } else { + host->cmd->resp[0] = bcm2835_mmc_readl(host, SDHCI_RESPONSE); + } + } + + host->cmd->error = 0; + + /* Finished CMD23, now send actual command. */ + if (host->cmd == host->mrq->sbc) { + host->cmd = NULL; + bcm2835_mmc_send_command(host, host->mrq->cmd); + + if (host->mrq->cmd->data && host->use_dma) { + /* DMA transfer starts now, PIO starts after interrupt */ + bcm2835_mmc_transfer_dma(host); + } + } else { + + /* Processed actual command. */ + if (host->data && host->data_early) + bcm2835_mmc_finish_data(host); + + if (!host->cmd->data) + tasklet_schedule(&host->finish_tasklet); + + host->cmd = NULL; + } +} + + +static void bcm2835_mmc_timeout_timer(unsigned long data) +{ + struct bcm2835_host *host; + unsigned long flags; + + host = (struct bcm2835_host *)data; + + spin_lock_irqsave(&host->lock, flags); + + if (host->mrq) { + pr_err("%s: Timeout waiting for hardware interrupt.\n", + mmc_hostname(host->mmc)); + bcm2835_mmc_dumpregs(host); + + if (host->data) { + host->data->error = -ETIMEDOUT; + bcm2835_mmc_finish_data(host); + } else { + if (host->cmd) + host->cmd->error = -ETIMEDOUT; + else + host->mrq->cmd->error = -ETIMEDOUT; + + tasklet_schedule(&host->finish_tasklet); + } + } + + mmiowb(); + spin_unlock_irqrestore(&host->lock, flags); +} + + +static void bcm2835_mmc_enable_sdio_irq_nolock(struct bcm2835_host *host, int enable) +{ + if (!(host->flags & SDHCI_DEVICE_DEAD)) { + if (enable) + host->ier |= SDHCI_INT_CARD_INT; + else + host->ier &= ~SDHCI_INT_CARD_INT; + + bcm2835_mmc_writel(host, host->ier, SDHCI_INT_ENABLE, 7); + bcm2835_mmc_writel(host, host->ier, SDHCI_SIGNAL_ENABLE, 7); + mmiowb(); + } +} + +static void bcm2835_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable) +{ + struct bcm2835_host *host = mmc_priv(mmc); + unsigned long flags; + + spin_lock_irqsave(&host->lock, flags); + if (enable) + host->flags |= SDHCI_SDIO_IRQ_ENABLED; + else + host->flags &= ~SDHCI_SDIO_IRQ_ENABLED; + + bcm2835_mmc_enable_sdio_irq_nolock(host, enable); + spin_unlock_irqrestore(&host->lock, flags); +} + +static void bcm2835_mmc_cmd_irq(struct bcm2835_host *host, u32 intmask) +{ + + BUG_ON(intmask == 0); + + if (!host->cmd) { + pr_err("%s: Got command interrupt 0x%08x even " + "though no command operation was in progress.\n", + mmc_hostname(host->mmc), (unsigned)intmask); + bcm2835_mmc_dumpregs(host); + return; + } + + if (intmask & SDHCI_INT_TIMEOUT) + host->cmd->error = -ETIMEDOUT; + else if (intmask & (SDHCI_INT_CRC | SDHCI_INT_END_BIT | + SDHCI_INT_INDEX)) { + host->cmd->error = -EILSEQ; + } + + if (host->cmd->error) { + tasklet_schedule(&host->finish_tasklet); + return; + } + + if (intmask & SDHCI_INT_RESPONSE) + bcm2835_mmc_finish_command(host); + +} + +static void bcm2835_mmc_data_irq(struct bcm2835_host *host, u32 intmask) +{ + struct dma_chan *dma_chan; + u32 dir_data; + + BUG_ON(intmask == 0); + + if (!host->data) { + /* + * The "data complete" interrupt is also used to + * indicate that a busy state has ended. See comment + * above in sdhci_cmd_irq(). + */ + if (host->cmd && (host->cmd->flags & MMC_RSP_BUSY)) { + if (intmask & SDHCI_INT_DATA_END) { + bcm2835_mmc_finish_command(host); + return; + } + } + + pr_debug("%s: Got data interrupt 0x%08x even " + "though no data operation was in progress.\n", + mmc_hostname(host->mmc), (unsigned)intmask); + bcm2835_mmc_dumpregs(host); + + return; + } + + if (intmask & SDHCI_INT_DATA_TIMEOUT) + host->data->error = -ETIMEDOUT; + else if (intmask & SDHCI_INT_DATA_END_BIT) + host->data->error = -EILSEQ; + else if ((intmask & SDHCI_INT_DATA_CRC) && + SDHCI_GET_CMD(bcm2835_mmc_readw(host, SDHCI_COMMAND)) + != MMC_BUS_TEST_R) + host->data->error = -EILSEQ; + + if (host->use_dma) { + if (host->data->flags & MMC_DATA_WRITE) { + /* IRQ handled here */ + + dma_chan = host->dma_chan_rxtx; + dir_data = DMA_TO_DEVICE; + dma_unmap_sg(dma_chan->device->dev, + host->data->sg, host->data->sg_len, + dir_data); + + bcm2835_mmc_finish_data(host); + } + + } else { + if (host->data->error) + bcm2835_mmc_finish_data(host); + else { + if (intmask & (SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL)) + bcm2835_mmc_transfer_pio(host); + + if (intmask & SDHCI_INT_DATA_END) { + if (host->cmd) { + /* + * Data managed to finish before the + * command completed. Make sure we do + * things in the proper order. + */ + host->data_early = 1; + } else { + bcm2835_mmc_finish_data(host); + } + } + } + } +} + + +static irqreturn_t bcm2835_mmc_irq(int irq, void *dev_id) +{ + irqreturn_t result = IRQ_NONE; + struct bcm2835_host *host = dev_id; + u32 intmask, mask, unexpected = 0; + int max_loops = 16; + + spin_lock(&host->lock); + + intmask = bcm2835_mmc_readl(host, SDHCI_INT_STATUS); + + if (!intmask || intmask == 0xffffffff) { + result = IRQ_NONE; + goto out; + } + + do { + /* Clear selected interrupts. */ + mask = intmask & (SDHCI_INT_CMD_MASK | SDHCI_INT_DATA_MASK | + SDHCI_INT_BUS_POWER); + bcm2835_mmc_writel(host, mask, SDHCI_INT_STATUS, 8); + + + if (intmask & SDHCI_INT_CMD_MASK) + bcm2835_mmc_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK); + + if (intmask & SDHCI_INT_DATA_MASK) + bcm2835_mmc_data_irq(host, intmask & SDHCI_INT_DATA_MASK); + + if (intmask & SDHCI_INT_BUS_POWER) + pr_err("%s: Card is consuming too much power!\n", + mmc_hostname(host->mmc)); + + if (intmask & SDHCI_INT_CARD_INT) { + bcm2835_mmc_enable_sdio_irq_nolock(host, false); + host->thread_isr |= SDHCI_INT_CARD_INT; + result = IRQ_WAKE_THREAD; + } + + intmask &= ~(SDHCI_INT_CARD_INSERT | SDHCI_INT_CARD_REMOVE | + SDHCI_INT_CMD_MASK | SDHCI_INT_DATA_MASK | + SDHCI_INT_ERROR | SDHCI_INT_BUS_POWER | + SDHCI_INT_CARD_INT); + + if (intmask) { + unexpected |= intmask; + bcm2835_mmc_writel(host, intmask, SDHCI_INT_STATUS, 9); + } + + if (result == IRQ_NONE) + result = IRQ_HANDLED; + + intmask = bcm2835_mmc_readl(host, SDHCI_INT_STATUS); + } while (intmask && --max_loops); +out: + spin_unlock(&host->lock); + + if (unexpected) { + pr_err("%s: Unexpected interrupt 0x%08x.\n", + mmc_hostname(host->mmc), unexpected); + bcm2835_mmc_dumpregs(host); + } + + return result; +} + +static irqreturn_t bcm2835_mmc_thread_irq(int irq, void *dev_id) +{ + struct bcm2835_host *host = dev_id; + unsigned long flags; + u32 isr; + + spin_lock_irqsave(&host->lock, flags); + isr = host->thread_isr; + host->thread_isr = 0; + spin_unlock_irqrestore(&host->lock, flags); + + if (isr & SDHCI_INT_CARD_INT) { + sdio_run_irqs(host->mmc); + + spin_lock_irqsave(&host->lock, flags); + if (host->flags & SDHCI_SDIO_IRQ_ENABLED) + bcm2835_mmc_enable_sdio_irq_nolock(host, true); + spin_unlock_irqrestore(&host->lock, flags); + } + + return isr ? IRQ_HANDLED : IRQ_NONE; +} + + + +void bcm2835_mmc_set_clock(struct bcm2835_host *host, unsigned int clock) +{ + int div = 0; /* Initialized for compiler warning */ + int real_div = div, clk_mul = 1; + u16 clk = 0; + unsigned long timeout; + unsigned int input_clock = clock; + + if (host->overclock_50 && (clock == 50000000)) + clock = host->overclock_50 * 1000000 + 999999; + + host->mmc->actual_clock = 0; + + bcm2835_mmc_writew(host, 0, SDHCI_CLOCK_CONTROL); + + if (clock == 0) + return; + + /* Version 3.00 divisors must be a multiple of 2. */ + if (host->max_clk <= clock) + div = 1; + else { + for (div = 2; div < SDHCI_MAX_DIV_SPEC_300; + div += 2) { + if ((host->max_clk / div) <= clock) + break; + } + } + + real_div = div; + div >>= 1; + + if (real_div) + clock = (host->max_clk * clk_mul) / real_div; + host->mmc->actual_clock = clock; + + if ((clock > input_clock) && (clock > host->max_overclock)) { + pr_warn("%s: Overclocking to %dHz\n", + mmc_hostname(host->mmc), clock); + host->max_overclock = clock; + } + + clk |= (div & SDHCI_DIV_MASK) << SDHCI_DIVIDER_SHIFT; + clk |= ((div & SDHCI_DIV_HI_MASK) >> SDHCI_DIV_MASK_LEN) + << SDHCI_DIVIDER_HI_SHIFT; + clk |= SDHCI_CLOCK_INT_EN; + bcm2835_mmc_writew(host, clk, SDHCI_CLOCK_CONTROL); + + /* Wait max 20 ms */ + timeout = 20; + while (!((clk = bcm2835_mmc_readw(host, SDHCI_CLOCK_CONTROL)) + & SDHCI_CLOCK_INT_STABLE)) { + if (timeout == 0) { + pr_err("%s: Internal clock never " + "stabilised.\n", mmc_hostname(host->mmc)); + bcm2835_mmc_dumpregs(host); + return; + } + timeout--; + mdelay(1); + } + + if (20-timeout > 10 && 20-timeout > host->max_delay) { + host->max_delay = 20-timeout; + pr_warning("Warning: MMC controller hung for %d ms\n", host->max_delay); + } + + clk |= SDHCI_CLOCK_CARD_EN; + bcm2835_mmc_writew(host, clk, SDHCI_CLOCK_CONTROL); +} + +static void bcm2835_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq) +{ + struct bcm2835_host *host; + unsigned long flags; + + host = mmc_priv(mmc); + + spin_lock_irqsave(&host->lock, flags); + + WARN_ON(host->mrq != NULL); + + host->mrq = mrq; + + if (mrq->sbc && !(host->flags & SDHCI_AUTO_CMD23)) + bcm2835_mmc_send_command(host, mrq->sbc); + else + bcm2835_mmc_send_command(host, mrq->cmd); + + mmiowb(); + spin_unlock_irqrestore(&host->lock, flags); + + if (!(mrq->sbc && !(host->flags & SDHCI_AUTO_CMD23)) && mrq->cmd->data && host->use_dma) { + /* DMA transfer starts now, PIO starts after interrupt */ + bcm2835_mmc_transfer_dma(host); + } +} + + +static void bcm2835_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) +{ + + struct bcm2835_host *host = mmc_priv(mmc); + unsigned long flags; + u8 ctrl; + u16 clk, ctrl_2; + + pr_debug("bcm2835_mmc_set_ios: clock %d, pwr %d, bus_width %d, timing %d, vdd %d, drv_type %d\n", + ios->clock, ios->power_mode, ios->bus_width, + ios->timing, ios->signal_voltage, ios->drv_type); + + spin_lock_irqsave(&host->lock, flags); + + if (!ios->clock || ios->clock != host->clock) { + bcm2835_mmc_set_clock(host, ios->clock); + host->clock = ios->clock; + } + + if (host->pwr != SDHCI_POWER_330) { + host->pwr = SDHCI_POWER_330; + bcm2835_mmc_writeb(host, SDHCI_POWER_330 | SDHCI_POWER_ON, SDHCI_POWER_CONTROL); + } + + ctrl = bcm2835_mmc_readb(host, SDHCI_HOST_CONTROL); + + /* set bus width */ + ctrl &= ~SDHCI_CTRL_8BITBUS; + if (ios->bus_width == MMC_BUS_WIDTH_4) + ctrl |= SDHCI_CTRL_4BITBUS; + else + ctrl &= ~SDHCI_CTRL_4BITBUS; + + ctrl &= ~SDHCI_CTRL_HISPD; /* NO_HISPD_BIT */ + + + bcm2835_mmc_writeb(host, ctrl, SDHCI_HOST_CONTROL); + /* + * We only need to set Driver Strength if the + * preset value enable is not set. + */ + ctrl_2 = bcm2835_mmc_readw(host, SDHCI_HOST_CONTROL2); + ctrl_2 &= ~SDHCI_CTRL_DRV_TYPE_MASK; + if (ios->drv_type == MMC_SET_DRIVER_TYPE_A) + ctrl_2 |= SDHCI_CTRL_DRV_TYPE_A; + else if (ios->drv_type == MMC_SET_DRIVER_TYPE_C) + ctrl_2 |= SDHCI_CTRL_DRV_TYPE_C; + + bcm2835_mmc_writew(host, ctrl_2, SDHCI_HOST_CONTROL2); + + /* Reset SD Clock Enable */ + clk = bcm2835_mmc_readw(host, SDHCI_CLOCK_CONTROL); + clk &= ~SDHCI_CLOCK_CARD_EN; + bcm2835_mmc_writew(host, clk, SDHCI_CLOCK_CONTROL); + + /* Re-enable SD Clock */ + bcm2835_mmc_set_clock(host, host->clock); + bcm2835_mmc_writeb(host, ctrl, SDHCI_HOST_CONTROL); + + mmiowb(); + + spin_unlock_irqrestore(&host->lock, flags); +} + + +static struct mmc_host_ops bcm2835_ops = { + .request = bcm2835_mmc_request, + .set_ios = bcm2835_mmc_set_ios, + .enable_sdio_irq = bcm2835_mmc_enable_sdio_irq, +}; + + +static void bcm2835_mmc_tasklet_finish(unsigned long param) +{ + struct bcm2835_host *host; + unsigned long flags; + struct mmc_request *mrq; + + host = (struct bcm2835_host *)param; + + spin_lock_irqsave(&host->lock, flags); + + /* + * If this tasklet gets rescheduled while running, it will + * be run again afterwards but without any active request. + */ + if (!host->mrq) { + spin_unlock_irqrestore(&host->lock, flags); + return; + } + + del_timer(&host->timer); + + mrq = host->mrq; + + /* + * The controller needs a reset of internal state machines + * upon error conditions. + */ + if (!(host->flags & SDHCI_DEVICE_DEAD) && + ((mrq->cmd && mrq->cmd->error) || + (mrq->data && (mrq->data->error || + (mrq->data->stop && mrq->data->stop->error))))) { + + spin_unlock_irqrestore(&host->lock, flags); + bcm2835_mmc_reset(host, SDHCI_RESET_CMD); + bcm2835_mmc_reset(host, SDHCI_RESET_DATA); + spin_lock_irqsave(&host->lock, flags); + } + + host->mrq = NULL; + host->cmd = NULL; + host->data = NULL; + + mmiowb(); + + spin_unlock_irqrestore(&host->lock, flags); + mmc_request_done(host->mmc, mrq); +} + + + +static int bcm2835_mmc_add_host(struct bcm2835_host *host) +{ + struct mmc_host *mmc = host->mmc; + struct device *dev = mmc->parent; +#ifndef FORCE_PIO + struct dma_slave_config cfg; +#endif + int ret; + + bcm2835_mmc_reset(host, SDHCI_RESET_ALL); + + host->clk_mul = 0; + + mmc->f_max = host->max_clk; + mmc->f_max = host->max_clk; + mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_300; + + /* SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK */ + host->timeout_clk = mmc->f_max / 1000; + mmc->max_busy_timeout = (1 << 27) / host->timeout_clk; + + /* host controller capabilities */ + mmc->caps |= MMC_CAP_CMD23 | MMC_CAP_ERASE | MMC_CAP_NEEDS_POLL | + MMC_CAP_SDIO_IRQ | MMC_CAP_SD_HIGHSPEED | + MMC_CAP_MMC_HIGHSPEED; + + mmc->caps2 |= MMC_CAP2_SDIO_IRQ_NOTHREAD; + + host->flags = SDHCI_AUTO_CMD23; + + dev_info(dev, "mmc_debug:%x mmc_debug2:%x\n", mmc_debug, mmc_debug2); +#ifdef FORCE_PIO + dev_info(dev, "Forcing PIO mode\n"); + host->have_dma = false; +#else + if (IS_ERR_OR_NULL(host->dma_chan_rxtx)) { + dev_err(dev, "%s: Unable to initialise DMA channel. Falling back to PIO\n", + DRIVER_NAME); + host->have_dma = false; + } else { + dev_info(dev, "DMA channel allocated"); + + cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + cfg.slave_id = 11; /* DREQ channel */ + + /* Validate the slave configurations */ + + cfg.direction = DMA_MEM_TO_DEV; + cfg.src_addr = 0; + cfg.dst_addr = host->bus_addr + SDHCI_BUFFER; + + ret = dmaengine_slave_config(host->dma_chan_rxtx, &cfg); + + if (ret == 0) { + host->dma_cfg_tx = cfg; + + cfg.direction = DMA_DEV_TO_MEM; + cfg.src_addr = host->bus_addr + SDHCI_BUFFER; + cfg.dst_addr = 0; + + ret = dmaengine_slave_config(host->dma_chan_rxtx, &cfg); + } + + if (ret == 0) { + host->dma_cfg_rx = cfg; + + host->use_dma = true; + } else { + pr_err("%s: unable to configure DMA channel. " + "Faling back to PIO\n", + mmc_hostname(mmc)); + dma_release_channel(host->dma_chan_rxtx); + host->dma_chan_rxtx = NULL; + host->use_dma = false; + } + } +#endif + mmc->max_segs = 128; + mmc->max_req_size = 524288; + mmc->max_seg_size = mmc->max_req_size; + mmc->max_blk_size = 512; + mmc->max_blk_count = 65535; + + /* report supported voltage ranges */ + mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34; + + tasklet_init(&host->finish_tasklet, + bcm2835_mmc_tasklet_finish, (unsigned long)host); + + setup_timer(&host->timer, bcm2835_mmc_timeout_timer, (unsigned long)host); + init_waitqueue_head(&host->buf_ready_int); + + bcm2835_mmc_init(host, 0); + ret = devm_request_threaded_irq(dev, host->irq, bcm2835_mmc_irq, + bcm2835_mmc_thread_irq, IRQF_SHARED, + mmc_hostname(mmc), host); + if (ret) { + dev_err(dev, "Failed to request IRQ %d: %d\n", host->irq, ret); + goto untasklet; + } + + mmiowb(); + mmc_add_host(mmc); + + return 0; + +untasklet: + tasklet_kill(&host->finish_tasklet); + + return ret; +} + +static int bcm2835_mmc_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct device_node *node = dev->of_node; + struct clk *clk; + struct resource *iomem; + struct bcm2835_host *host; + struct mmc_host *mmc; + const __be32 *addr; + int ret; + + mmc = mmc_alloc_host(sizeof(*host), dev); + if (!mmc) + return -ENOMEM; + + mmc->ops = &bcm2835_ops; + host = mmc_priv(mmc); + host->mmc = mmc; + host->timeout = msecs_to_jiffies(1000); + spin_lock_init(&host->lock); + + iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + host->ioaddr = devm_ioremap_resource(dev, iomem); + if (IS_ERR(host->ioaddr)) { + ret = PTR_ERR(host->ioaddr); + goto err; + } + + addr = of_get_address(node, 0, NULL, NULL); + if (!addr) { + dev_err(dev, "could not get DMA-register address\n"); + return -ENODEV; + } + host->bus_addr = be32_to_cpup(addr); + pr_debug(" - ioaddr %lx, iomem->start %lx, bus_addr %lx\n", + (unsigned long)host->ioaddr, + (unsigned long)iomem->start, + (unsigned long)host->bus_addr); + +#ifndef FORCE_PIO + if (node) { + host->dma_chan_rxtx = dma_request_slave_channel(dev, "rx-tx"); + if (!host->dma_chan_rxtx) + host->dma_chan_rxtx = + dma_request_slave_channel(dev, "tx"); + if (!host->dma_chan_rxtx) + host->dma_chan_rxtx = + dma_request_slave_channel(dev, "rx"); + } else { + dma_cap_mask_t mask; + + dma_cap_zero(mask); + /* we don't care about the channel, any would work */ + dma_cap_set(DMA_SLAVE, mask); + host->dma_chan_rxtx = dma_request_channel(mask, NULL, NULL); + } +#endif + clk = devm_clk_get(dev, NULL); + if (IS_ERR(clk)) { + ret = PTR_ERR(clk); + if (ret == -EPROBE_DEFER) + dev_info(dev, "could not get clk, deferring probe\n"); + else + dev_err(dev, "could not get clk\n"); + goto err; + } + + host->max_clk = clk_get_rate(clk); + + host->irq = platform_get_irq(pdev, 0); + if (host->irq <= 0) { + dev_err(dev, "get IRQ failed\n"); + ret = -EINVAL; + goto err; + } + + if (node) { + mmc_of_parse(mmc); + + /* Read any custom properties */ + of_property_read_u32(node, + "brcm,overclock-50", + &host->overclock_50); + } else { + mmc->caps |= MMC_CAP_4_BIT_DATA; + } + + ret = bcm2835_mmc_add_host(host); + if (ret) + goto err; + + platform_set_drvdata(pdev, host); + + return 0; +err: + mmc_free_host(mmc); + + return ret; +} + +static int bcm2835_mmc_remove(struct platform_device *pdev) +{ + struct bcm2835_host *host = platform_get_drvdata(pdev); + unsigned long flags; + int dead; + u32 scratch; + + dead = 0; + scratch = bcm2835_mmc_readl(host, SDHCI_INT_STATUS); + if (scratch == (u32)-1) + dead = 1; + + + if (dead) { + spin_lock_irqsave(&host->lock, flags); + + host->flags |= SDHCI_DEVICE_DEAD; + + if (host->mrq) { + pr_err("%s: Controller removed during " + " transfer!\n", mmc_hostname(host->mmc)); + + host->mrq->cmd->error = -ENOMEDIUM; + tasklet_schedule(&host->finish_tasklet); + } + + spin_unlock_irqrestore(&host->lock, flags); + } + + mmc_remove_host(host->mmc); + + if (!dead) + bcm2835_mmc_reset(host, SDHCI_RESET_ALL); + + free_irq(host->irq, host); + + del_timer_sync(&host->timer); + + tasklet_kill(&host->finish_tasklet); + + mmc_free_host(host->mmc); + platform_set_drvdata(pdev, NULL); + + return 0; +} + + +static const struct of_device_id bcm2835_mmc_match[] = { + { .compatible = "brcm,bcm2835-mmc" }, + { } +}; +MODULE_DEVICE_TABLE(of, bcm2835_mmc_match); + + + +static struct platform_driver bcm2835_mmc_driver = { + .probe = bcm2835_mmc_probe, + .remove = bcm2835_mmc_remove, + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + .of_match_table = bcm2835_mmc_match, + }, +}; +module_platform_driver(bcm2835_mmc_driver); + +module_param(mmc_debug, uint, 0644); +module_param(mmc_debug2, uint, 0644); +MODULE_ALIAS("platform:mmc-bcm2835"); +MODULE_DESCRIPTION("BCM2835 SDHCI driver"); +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Gellert Weisz"); From 77af5cd04e4661813eeea9e3fbf9a1b3670e449c Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Wed, 25 Mar 2015 17:49:47 +0000 Subject: [PATCH 042/165] Adding bcm2835-sdhost driver, and an overlay to enable it BCM2835 has two SD card interfaces. This driver uses the other one. bcm2835-sdhost: Error handling fix, and code clarification bcm2835-sdhost: Adding overclocking option Allow a different clock speed to be substitued for a requested 50MHz. This option is exposed using the "overclock_50" DT parameter. Note that the sdhost interface is restricted to integer divisions of core_freq, and the highest sensible option for a core_freq of 250MHz is 84 (250/3 = 83.3MHz), the next being 125 (250/2) which is much too high. Use at your own risk. bcm2835-sdhost: Round up the overclock, so 62 works for 62.5Mhz Also only warn once for each overclock setting. bcm2835-sdhost: Improve error handling and recovery 1) Expose the hw_reset method to the MMC framework, removing many internal calls by the driver. 2) Reduce overclock setting on error. 3) Increase timeout to cope with high capacity cards. 4) Add properties and parameters to control pio_limit and debug. 5) Reduce messages at probe time. bcm2835-sdhost: Further improve overclock back-off bcm2835-sdhost: Clear HBLC for PIO mode Also update pio_limit default in overlay README. bcm2835-sdhost: Add the ERASE capability See: https://github.com/raspberrypi/linux/issues/1076 bcm2835-sdhost: Ignore CRC7 for MMC CMD1 It seems that the sdhost interface returns CRC7 errors for CMD1, which is the MMC-specific SEND_OP_COND. Returning these errors to the MMC layer causes a downward spiral, but ignoring them seems to be harmless. bcm2835-mmc/sdhost: Remove ARCH_BCM2835 differences The bcm2835-mmc driver (and -sdhost driver that copied from it) contains code to handle SDIO interrupts in a threaded interrupt handler rather than waking the MMC framework thread. The change follows a patch from Russell King that adds the facility as the preferred way of working. However, the new code path is only present in ARCH_BCM2835 builds, which I have taken to be a way of testing the waters rather than making the change across the board; I can't see any technical reason why it wouldn't be enabled for MACH_BCM270X builds. So this patch standardises on the ARCH_BCM2835 code, removing the old code paths. bcm2835-sdhost: Don't log timeout errors unless debug=1 The MMC card-discovery process generates timeouts. This is expected behaviour, so reporting it to the user serves no purpose. Suppress the reporting of timeout errors unless the debug flag is on. bcm2835-sdhost: Add workaround for odd behaviour on some cards For reasons not understood, the sdhost driver fails when reading sectors very near the end of some SD cards. The problem could be related to the similar issue that reading the final sector of any card as part of a multiple read never completes, and the workaround is an extension of the mechanism introduced to solve that problem which ensures those sectors are always read singly. bcm2835-sdhost: Major revision This is a significant revision of the bcm2835-sdhost driver. It improves on the original in a number of ways: 1) Through the use of CMD23 for reads it appears to avoid problems reading some sectors on certain high speed cards. 2) Better atomicity to prevent crashes. 3) Higher performance. 4) Activity logging included, for easier diagnosis in the event of a problem. Signed-off-by: Phil Elwell bcm2835-sdhost: Restore ATOMIC flag to PIO sg mapping Allocation problems have been seen in a wireless driver, and this is the only change which might have been responsible. SQUASH: bcm2835-sdhost: Only claim one DMA channel With both MMC controllers enabled there are few DMA channels left. The bcm2835-sdhost driver only uses DMA in one direction at a time, so it doesn't need to claim two channels. See: https://github.com/raspberrypi/linux/issues/1327 Signed-off-by: Phil Elwell bcm2835-sdhost: Workaround for "slow" sectors Some cards have been seen to cause timeouts after certain sectors are read. This workaround enforces a minimum delay between the stop after reading one of those sectors and a subsequent data command. Using CMD23 (SET_BLOCK_COUNT) avoids this problem, so good cards will not be penalised by this workaround. Signed-off-by: Phil Elwell bcm2835-sdhost: Firmware manages the clock divisor The bcm2835-sdhost driver hands control of the CDIV clock divisor register to matching firmware, allowing it to adjust to a changing core clock. This removes the need to use the performance governor or to enable io_is_busy on the on-demand governor in order to get the best SD performance. N.B. As SD clocks must be an integer divisor of the core clock, it is possible that the SD clock for "turbo" mode can be different (even lower) than "normal" mode. Signed-off-by: Phil Elwell bcm2835-sdhost: Reset the clock in task context Since reprogramming the clock can now involve a round-trip to the firmware it must not be done at atomic context, and a tasklet is not a task. Signed-off-by: Phil Elwell bcm2835-sdhost: Don't exit cmd wait loop on error The FAIL flag can be set in the CMD register before command processing is complete, leading to spurious "failed to complete" errors. This has the effect of promoting harmless CRC7 errors during CMD1 processing into errors that can delay and even prevent booting. Also: 1) Convert the last KERN_ERROR message in the register dumping to KERN_INFO. 2) Remove an unnecessary reset call from bcm2835_sdhost_add_host. See: https://github.com/raspberrypi/linux/pull/1492 Signed-off-by: Phil Elwell --- drivers/mmc/host/Kconfig | 10 + drivers/mmc/host/Makefile | 1 + drivers/mmc/host/bcm2835-sdhost.c | 2189 +++++++++++++++++++++++++++++++++++++ 3 files changed, 2200 insertions(+) create mode 100644 drivers/mmc/host/bcm2835-sdhost.c diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig index 77142222a730b76d46a2492fef8f6f1773072687..94f0a180596cba76e67edac5b9f3797215109e18 100644 --- a/drivers/mmc/host/Kconfig +++ b/drivers/mmc/host/Kconfig @@ -33,6 +33,16 @@ config MMC_BCM2835_PIO_DMA_BARRIER If unsure, say 2 here. +config MMC_BCM2835_SDHOST + tristate "Support for the SDHost controller on BCM2708/9" + depends on ARCH_BCM2835 + help + This selects the SDHost controller on BCM2835/6. + + If you have a controller with this interface, say Y or M here. + + If unsure, say N. + config MMC_ARMMMCI tristate "ARM AMBA Multimedia Card Interface support" depends on ARM_AMBA diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile index c987038c9f3a1cea98931efe868c933b767c1664..9f7e1930f8e85e8994a8d3e7d2537cc1903ba3dc 100644 --- a/drivers/mmc/host/Makefile +++ b/drivers/mmc/host/Makefile @@ -19,6 +19,7 @@ obj-$(CONFIG_MMC_SDHCI_SIRF) += sdhci-sirf.o obj-$(CONFIG_MMC_SDHCI_F_SDH30) += sdhci_f_sdh30.o obj-$(CONFIG_MMC_SDHCI_SPEAR) += sdhci-spear.o obj-$(CONFIG_MMC_BCM2835) += bcm2835-mmc.o +obj-$(CONFIG_MMC_BCM2835_SDHOST) += bcm2835-sdhost.o obj-$(CONFIG_MMC_WBSD) += wbsd.o obj-$(CONFIG_MMC_AU1X) += au1xmmc.o obj-$(CONFIG_MMC_MTK) += mtk-sd.o diff --git a/drivers/mmc/host/bcm2835-sdhost.c b/drivers/mmc/host/bcm2835-sdhost.c new file mode 100644 index 0000000000000000000000000000000000000000..a9bc79bfdbb71807819dfe2d8f1651445997f92a --- /dev/null +++ b/drivers/mmc/host/bcm2835-sdhost.c @@ -0,0 +1,2189 @@ +/* + * BCM2835 SD host driver. + * + * Author: Phil Elwell + * Copyright (C) 2015-2016 Raspberry Pi (Trading) Ltd. + * + * Based on + * mmc-bcm2835.c by Gellert Weisz + * which is, in turn, based on + * sdhci-bcm2708.c by Broadcom + * sdhci-bcm2835.c by Stephen Warren and Oleksandr Tymoshenko + * sdhci.c and sdhci-pci.c by Pierre Ossman + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#define FIFO_READ_THRESHOLD 4 +#define FIFO_WRITE_THRESHOLD 4 +#define ALLOW_CMD23_READ 1 +#define ALLOW_CMD23_WRITE 0 +#define ENABLE_LOG 1 +#define SDDATA_FIFO_PIO_BURST 8 +#define CMD_DALLY_US 1 + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define DRIVER_NAME "sdhost-bcm2835" + +#define SDCMD 0x00 /* Command to SD card - 16 R/W */ +#define SDARG 0x04 /* Argument to SD card - 32 R/W */ +#define SDTOUT 0x08 /* Start value for timeout counter - 32 R/W */ +#define SDCDIV 0x0c /* Start value for clock divider - 11 R/W */ +#define SDRSP0 0x10 /* SD card response (31:0) - 32 R */ +#define SDRSP1 0x14 /* SD card response (63:32) - 32 R */ +#define SDRSP2 0x18 /* SD card response (95:64) - 32 R */ +#define SDRSP3 0x1c /* SD card response (127:96) - 32 R */ +#define SDHSTS 0x20 /* SD host status - 11 R */ +#define SDVDD 0x30 /* SD card power control - 1 R/W */ +#define SDEDM 0x34 /* Emergency Debug Mode - 13 R/W */ +#define SDHCFG 0x38 /* Host configuration - 2 R/W */ +#define SDHBCT 0x3c /* Host byte count (debug) - 32 R/W */ +#define SDDATA 0x40 /* Data to/from SD card - 32 R/W */ +#define SDHBLC 0x50 /* Host block count (SDIO/SDHC) - 9 R/W */ + +#define SDCMD_NEW_FLAG 0x8000 +#define SDCMD_FAIL_FLAG 0x4000 +#define SDCMD_BUSYWAIT 0x800 +#define SDCMD_NO_RESPONSE 0x400 +#define SDCMD_LONG_RESPONSE 0x200 +#define SDCMD_WRITE_CMD 0x80 +#define SDCMD_READ_CMD 0x40 +#define SDCMD_CMD_MASK 0x3f + +#define SDCDIV_MAX_CDIV 0x7ff + +#define SDHSTS_BUSY_IRPT 0x400 +#define SDHSTS_BLOCK_IRPT 0x200 +#define SDHSTS_SDIO_IRPT 0x100 +#define SDHSTS_REW_TIME_OUT 0x80 +#define SDHSTS_CMD_TIME_OUT 0x40 +#define SDHSTS_CRC16_ERROR 0x20 +#define SDHSTS_CRC7_ERROR 0x10 +#define SDHSTS_FIFO_ERROR 0x08 +/* Reserved */ +/* Reserved */ +#define SDHSTS_DATA_FLAG 0x01 + +#define SDHSTS_TRANSFER_ERROR_MASK (SDHSTS_CRC7_ERROR|SDHSTS_CRC16_ERROR|SDHSTS_REW_TIME_OUT|SDHSTS_FIFO_ERROR) +#define SDHSTS_ERROR_MASK (SDHSTS_CMD_TIME_OUT|SDHSTS_TRANSFER_ERROR_MASK) + +#define SDHCFG_BUSY_IRPT_EN (1<<10) +#define SDHCFG_BLOCK_IRPT_EN (1<<8) +#define SDHCFG_SDIO_IRPT_EN (1<<5) +#define SDHCFG_DATA_IRPT_EN (1<<4) +#define SDHCFG_SLOW_CARD (1<<3) +#define SDHCFG_WIDE_EXT_BUS (1<<2) +#define SDHCFG_WIDE_INT_BUS (1<<1) +#define SDHCFG_REL_CMD_LINE (1<<0) + +#define SDEDM_FORCE_DATA_MODE (1<<19) +#define SDEDM_CLOCK_PULSE (1<<20) +#define SDEDM_BYPASS (1<<21) + +#define SDEDM_WRITE_THRESHOLD_SHIFT 9 +#define SDEDM_READ_THRESHOLD_SHIFT 14 +#define SDEDM_THRESHOLD_MASK 0x1f + +#define SDEDM_FSM_MASK 0xf +#define SDEDM_FSM_IDENTMODE 0x0 +#define SDEDM_FSM_DATAMODE 0x1 +#define SDEDM_FSM_READDATA 0x2 +#define SDEDM_FSM_WRITEDATA 0x3 +#define SDEDM_FSM_READWAIT 0x4 +#define SDEDM_FSM_READCRC 0x5 +#define SDEDM_FSM_WRITECRC 0x6 +#define SDEDM_FSM_WRITEWAIT1 0x7 +#define SDEDM_FSM_POWERDOWN 0x8 +#define SDEDM_FSM_POWERUP 0x9 +#define SDEDM_FSM_WRITESTART1 0xa +#define SDEDM_FSM_WRITESTART2 0xb +#define SDEDM_FSM_GENPULSES 0xc +#define SDEDM_FSM_WRITEWAIT2 0xd +#define SDEDM_FSM_STARTPOWDOWN 0xf + +#define SDDATA_FIFO_WORDS 16 + +#define USE_CMD23_FLAGS ((ALLOW_CMD23_READ * MMC_DATA_READ) | \ + (ALLOW_CMD23_WRITE * MMC_DATA_WRITE)) + +#define MHZ 1000000 + + +struct bcm2835_host { + spinlock_t lock; + + void __iomem *ioaddr; + u32 bus_addr; + + struct mmc_host *mmc; + + u32 pio_timeout; /* In jiffies */ + + int clock; /* Current clock speed */ + + bool slow_card; /* Force 11-bit divisor */ + + unsigned int max_clk; /* Max possible freq */ + + struct tasklet_struct finish_tasklet; /* Tasklet structures */ + + struct work_struct cmd_wait_wq; /* Workqueue function */ + + struct timer_list timer; /* Timer for timeouts */ + + struct sg_mapping_iter sg_miter; /* SG state for PIO */ + unsigned int blocks; /* remaining PIO blocks */ + + int irq; /* Device IRQ */ + + u32 cmd_quick_poll_retries; + u32 ns_per_fifo_word; + + /* cached registers */ + u32 hcfg; + u32 cdiv; + + struct mmc_request *mrq; /* Current request */ + struct mmc_command *cmd; /* Current command */ + struct mmc_data *data; /* Current data request */ + unsigned int data_complete:1; /* Data finished before cmd */ + + unsigned int flush_fifo:1; /* Drain the fifo when finishing */ + + unsigned int use_busy:1; /* Wait for busy interrupt */ + + unsigned int use_sbc:1; /* Send CMD23 */ + + unsigned int debug:1; /* Enable debug output */ + unsigned int firmware_sets_cdiv:1; /* Let the firmware manage the clock */ + unsigned int reset_clock:1; /* Reset the clock fore the next request */ + + /*DMA part*/ + struct dma_chan *dma_chan_rxtx; /* DMA channel for reads and writes */ + struct dma_chan *dma_chan; /* Channel in use */ + struct dma_slave_config dma_cfg_rx; + struct dma_slave_config dma_cfg_tx; + struct dma_async_tx_descriptor *dma_desc; + u32 dma_dir; + u32 drain_words; + struct page *drain_page; + u32 drain_offset; + + bool allow_dma; + bool use_dma; + /*end of DMA part*/ + + int max_delay; /* maximum length of time spent waiting */ + struct timeval stop_time; /* when the last stop was issued */ + u32 delay_after_stop; /* minimum time between stop and subsequent data transfer */ + u32 delay_after_this_stop; /* minimum time between this stop and subsequent data transfer */ + u32 user_overclock_50; /* User's preferred frequency to use when 50MHz is requested (in MHz) */ + u32 overclock_50; /* frequency to use when 50MHz is requested (in MHz) */ + u32 overclock; /* Current frequency if overclocked, else zero */ + u32 pio_limit; /* Maximum block count for PIO (0 = always DMA) */ + + u32 sectors; /* Cached card size in sectors */ +}; + +#if ENABLE_LOG + +struct log_entry_struct { + char event[4]; + u32 timestamp; + u32 param1; + u32 param2; +}; + +typedef struct log_entry_struct LOG_ENTRY_T; + +LOG_ENTRY_T *sdhost_log_buf; +dma_addr_t sdhost_log_addr; +static u32 sdhost_log_idx; +static spinlock_t log_lock; +static void __iomem *timer_base; + +#define LOG_ENTRIES (256*1) +#define LOG_SIZE (sizeof(LOG_ENTRY_T)*LOG_ENTRIES) + +static void log_init(struct device *dev, u32 bus_to_phys) +{ + spin_lock_init(&log_lock); + sdhost_log_buf = dma_zalloc_coherent(dev, LOG_SIZE, &sdhost_log_addr, + GFP_KERNEL); + if (sdhost_log_buf) { + pr_info("sdhost: log_buf @ %p (%x)\n", + sdhost_log_buf, sdhost_log_addr); + timer_base = ioremap_nocache(bus_to_phys + 0x7e003000, SZ_4K); + if (!timer_base) + pr_err("sdhost: failed to remap timer\n"); + } + else + pr_err("sdhost: failed to allocate log buf\n"); +} + +static void log_event_impl(const char *event, u32 param1, u32 param2) +{ + if (sdhost_log_buf) { + LOG_ENTRY_T *entry; + unsigned long flags; + + spin_lock_irqsave(&log_lock, flags); + + entry = sdhost_log_buf + sdhost_log_idx; + memcpy(entry->event, event, 4); + entry->timestamp = (readl(timer_base + 4) & 0x3fffffff) + + (smp_processor_id()<<30); + entry->param1 = param1; + entry->param2 = param2; + sdhost_log_idx = (sdhost_log_idx + 1) % LOG_ENTRIES; + + spin_unlock_irqrestore(&log_lock, flags); + } +} + +static void log_dump(void) +{ + if (sdhost_log_buf) { + LOG_ENTRY_T *entry; + unsigned long flags; + int idx; + + spin_lock_irqsave(&log_lock, flags); + + idx = sdhost_log_idx; + do { + entry = sdhost_log_buf + idx; + if (entry->event[0] != '\0') + pr_info("[%08x] %.4s %x %x\n", + entry->timestamp, + entry->event, + entry->param1, + entry->param2); + idx = (idx + 1) % LOG_ENTRIES; + } while (idx != sdhost_log_idx); + + spin_unlock_irqrestore(&log_lock, flags); + } +} + +#define log_event(event, param1, param2) log_event_impl(event, param1, param2) + +#else + +#define log_init(x) (void)0 +#define log_event(event, param1, param2) (void)0 +#define log_dump() (void)0 + +#endif + +static inline void bcm2835_sdhost_write(struct bcm2835_host *host, u32 val, int reg) +{ + writel(val, host->ioaddr + reg); +} + +static inline u32 bcm2835_sdhost_read(struct bcm2835_host *host, int reg) +{ + return readl(host->ioaddr + reg); +} + +static inline u32 bcm2835_sdhost_read_relaxed(struct bcm2835_host *host, int reg) +{ + return readl_relaxed(host->ioaddr + reg); +} + +static void bcm2835_sdhost_dumpcmd(struct bcm2835_host *host, + struct mmc_command *cmd, + const char *label) +{ + if (cmd) + pr_info("%s:%c%s op %d arg 0x%x flags 0x%x - resp %08x %08x %08x %08x, err %d\n", + mmc_hostname(host->mmc), + (cmd == host->cmd) ? '>' : ' ', + label, cmd->opcode, cmd->arg, cmd->flags, + cmd->resp[0], cmd->resp[1], cmd->resp[2], cmd->resp[3], + cmd->error); +} + +static void bcm2835_sdhost_dumpregs(struct bcm2835_host *host) +{ + if (host->mrq) + { + bcm2835_sdhost_dumpcmd(host, host->mrq->sbc, "sbc"); + bcm2835_sdhost_dumpcmd(host, host->mrq->cmd, "cmd"); + if (host->mrq->data) + pr_info("%s: data blocks %x blksz %x - err %d\n", + mmc_hostname(host->mmc), + host->mrq->data->blocks, + host->mrq->data->blksz, + host->mrq->data->error); + bcm2835_sdhost_dumpcmd(host, host->mrq->stop, "stop"); + } + + pr_info("%s: =========== REGISTER DUMP ===========\n", + mmc_hostname(host->mmc)); + + pr_info("%s: SDCMD 0x%08x\n", + mmc_hostname(host->mmc), + bcm2835_sdhost_read(host, SDCMD)); + pr_info("%s: SDARG 0x%08x\n", + mmc_hostname(host->mmc), + bcm2835_sdhost_read(host, SDARG)); + pr_info("%s: SDTOUT 0x%08x\n", + mmc_hostname(host->mmc), + bcm2835_sdhost_read(host, SDTOUT)); + pr_info("%s: SDCDIV 0x%08x\n", + mmc_hostname(host->mmc), + bcm2835_sdhost_read(host, SDCDIV)); + pr_info("%s: SDRSP0 0x%08x\n", + mmc_hostname(host->mmc), + bcm2835_sdhost_read(host, SDRSP0)); + pr_info("%s: SDRSP1 0x%08x\n", + mmc_hostname(host->mmc), + bcm2835_sdhost_read(host, SDRSP1)); + pr_info("%s: SDRSP2 0x%08x\n", + mmc_hostname(host->mmc), + bcm2835_sdhost_read(host, SDRSP2)); + pr_info("%s: SDRSP3 0x%08x\n", + mmc_hostname(host->mmc), + bcm2835_sdhost_read(host, SDRSP3)); + pr_info("%s: SDHSTS 0x%08x\n", + mmc_hostname(host->mmc), + bcm2835_sdhost_read(host, SDHSTS)); + pr_info("%s: SDVDD 0x%08x\n", + mmc_hostname(host->mmc), + bcm2835_sdhost_read(host, SDVDD)); + pr_info("%s: SDEDM 0x%08x\n", + mmc_hostname(host->mmc), + bcm2835_sdhost_read(host, SDEDM)); + pr_info("%s: SDHCFG 0x%08x\n", + mmc_hostname(host->mmc), + bcm2835_sdhost_read(host, SDHCFG)); + pr_info("%s: SDHBCT 0x%08x\n", + mmc_hostname(host->mmc), + bcm2835_sdhost_read(host, SDHBCT)); + pr_info("%s: SDHBLC 0x%08x\n", + mmc_hostname(host->mmc), + bcm2835_sdhost_read(host, SDHBLC)); + + pr_info("%s: ===========================================\n", + mmc_hostname(host->mmc)); +} + +static void bcm2835_sdhost_set_power(struct bcm2835_host *host, bool on) +{ + bcm2835_sdhost_write(host, on ? 1 : 0, SDVDD); +} + +static void bcm2835_sdhost_reset_internal(struct bcm2835_host *host) +{ + u32 temp; + + if (host->debug) + pr_info("%s: reset\n", mmc_hostname(host->mmc)); + + bcm2835_sdhost_set_power(host, false); + + bcm2835_sdhost_write(host, 0, SDCMD); + bcm2835_sdhost_write(host, 0, SDARG); + bcm2835_sdhost_write(host, 0xf00000, SDTOUT); + bcm2835_sdhost_write(host, 0, SDCDIV); + bcm2835_sdhost_write(host, 0x7f8, SDHSTS); /* Write 1s to clear */ + bcm2835_sdhost_write(host, 0, SDHCFG); + bcm2835_sdhost_write(host, 0, SDHBCT); + bcm2835_sdhost_write(host, 0, SDHBLC); + + /* Limit fifo usage due to silicon bug */ + temp = bcm2835_sdhost_read(host, SDEDM); + temp &= ~((SDEDM_THRESHOLD_MASK<clock = 0; + host->sectors = 0; + bcm2835_sdhost_write(host, host->hcfg, SDHCFG); + bcm2835_sdhost_write(host, SDCDIV_MAX_CDIV, SDCDIV); + mmiowb(); +} + +static void bcm2835_sdhost_reset(struct mmc_host *mmc) +{ + struct bcm2835_host *host = mmc_priv(mmc); + unsigned long flags; + spin_lock_irqsave(&host->lock, flags); + log_event("RST<", 0, 0); + + bcm2835_sdhost_reset_internal(host); + + spin_unlock_irqrestore(&host->lock, flags); +} + +static void bcm2835_sdhost_set_ios(struct mmc_host *mmc, struct mmc_ios *ios); + +static void bcm2835_sdhost_init(struct bcm2835_host *host, int soft) +{ + pr_debug("bcm2835_sdhost_init(%d)\n", soft); + + /* Set interrupt enables */ + host->hcfg = SDHCFG_BUSY_IRPT_EN; + + bcm2835_sdhost_reset_internal(host); + + if (soft) { + /* force clock reconfiguration */ + host->clock = 0; + bcm2835_sdhost_set_ios(host->mmc, &host->mmc->ios); + } +} + +static void bcm2835_sdhost_wait_transfer_complete(struct bcm2835_host *host) +{ + int timediff; + u32 alternate_idle; + u32 edm; + + alternate_idle = (host->mrq->data->flags & MMC_DATA_READ) ? + SDEDM_FSM_READWAIT : SDEDM_FSM_WRITESTART1; + + edm = bcm2835_sdhost_read(host, SDEDM); + + log_event("WTC<", edm, 0); + + timediff = 0; + + while (1) { + u32 fsm = edm & SDEDM_FSM_MASK; + if ((fsm == SDEDM_FSM_IDENTMODE) || + (fsm == SDEDM_FSM_DATAMODE)) + break; + if (fsm == alternate_idle) { + bcm2835_sdhost_write(host, + edm | SDEDM_FORCE_DATA_MODE, + SDEDM); + break; + } + + timediff++; + if (timediff == 100000) { + pr_err("%s: wait_transfer_complete - still waiting after %d retries\n", + mmc_hostname(host->mmc), + timediff); + log_dump(); + bcm2835_sdhost_dumpregs(host); + host->mrq->data->error = -ETIMEDOUT; + log_event("WTC!", edm, 0); + return; + } + cpu_relax(); + edm = bcm2835_sdhost_read(host, SDEDM); + } + log_event("WTC>", edm, 0); +} + +static void bcm2835_sdhost_finish_data(struct bcm2835_host *host); + +static void bcm2835_sdhost_dma_complete(void *param) +{ + struct bcm2835_host *host = param; + struct mmc_data *data = host->data; + unsigned long flags; + + spin_lock_irqsave(&host->lock, flags); + log_event("DMA<", (u32)host->data, bcm2835_sdhost_read(host, SDHSTS)); + log_event("DMA ", bcm2835_sdhost_read(host, SDCMD), + bcm2835_sdhost_read(host, SDEDM)); + + if (host->dma_chan) { + dma_unmap_sg(host->dma_chan->device->dev, + data->sg, data->sg_len, + host->dma_dir); + + host->dma_chan = NULL; + } + + if (host->drain_words) { + void *page; + u32 *buf; + + page = kmap_atomic(host->drain_page); + buf = page + host->drain_offset; + + while (host->drain_words) { + u32 edm = bcm2835_sdhost_read(host, SDEDM); + if ((edm >> 4) & 0x1f) + *(buf++) = bcm2835_sdhost_read(host, + SDDATA); + host->drain_words--; + } + + kunmap_atomic(page); + } + + bcm2835_sdhost_finish_data(host); + + log_event("DMA>", (u32)host->data, 0); + spin_unlock_irqrestore(&host->lock, flags); +} + +static void bcm2835_sdhost_read_block_pio(struct bcm2835_host *host) +{ + unsigned long flags; + size_t blksize, len; + u32 *buf; + unsigned long wait_max; + + blksize = host->data->blksz; + + wait_max = jiffies + msecs_to_jiffies(host->pio_timeout); + + local_irq_save(flags); + + while (blksize) { + int copy_words; + u32 hsts = 0; + + if (!sg_miter_next(&host->sg_miter)) { + host->data->error = -EINVAL; + break; + } + + len = min(host->sg_miter.length, blksize); + if (len % 4) { + host->data->error = -EINVAL; + break; + } + + blksize -= len; + host->sg_miter.consumed = len; + + buf = (u32 *)host->sg_miter.addr; + + copy_words = len/4; + + while (copy_words) { + int burst_words, words; + u32 edm; + + burst_words = SDDATA_FIFO_PIO_BURST; + if (burst_words > copy_words) + burst_words = copy_words; + edm = bcm2835_sdhost_read(host, SDEDM); + words = ((edm >> 4) & 0x1f); + + if (words < burst_words) { + int fsm_state = (edm & SDEDM_FSM_MASK); + if ((fsm_state != SDEDM_FSM_READDATA) && + (fsm_state != SDEDM_FSM_READWAIT) && + (fsm_state != SDEDM_FSM_READCRC)) { + hsts = bcm2835_sdhost_read(host, + SDHSTS); + pr_info("%s: fsm %x, hsts %x\n", + mmc_hostname(host->mmc), + fsm_state, hsts); + if (hsts & SDHSTS_ERROR_MASK) + break; + } + + if (time_after(jiffies, wait_max)) { + pr_err("%s: PIO read timeout - EDM %x\n", + mmc_hostname(host->mmc), + edm); + hsts = SDHSTS_REW_TIME_OUT; + break; + } + ndelay((burst_words - words) * + host->ns_per_fifo_word); + continue; + } else if (words > copy_words) { + words = copy_words; + } + + copy_words -= words; + + while (words) { + *(buf++) = bcm2835_sdhost_read(host, SDDATA); + words--; + } + } + + if (hsts & SDHSTS_ERROR_MASK) + break; + } + + sg_miter_stop(&host->sg_miter); + + local_irq_restore(flags); +} + +static void bcm2835_sdhost_write_block_pio(struct bcm2835_host *host) +{ + unsigned long flags; + size_t blksize, len; + u32 *buf; + unsigned long wait_max; + + blksize = host->data->blksz; + + wait_max = jiffies + msecs_to_jiffies(host->pio_timeout); + + local_irq_save(flags); + + while (blksize) { + int copy_words; + u32 hsts = 0; + + if (!sg_miter_next(&host->sg_miter)) { + host->data->error = -EINVAL; + break; + } + + len = min(host->sg_miter.length, blksize); + if (len % 4) { + host->data->error = -EINVAL; + break; + } + + blksize -= len; + host->sg_miter.consumed = len; + + buf = (u32 *)host->sg_miter.addr; + + copy_words = len/4; + + while (copy_words) { + int burst_words, words; + u32 edm; + + burst_words = SDDATA_FIFO_PIO_BURST; + if (burst_words > copy_words) + burst_words = copy_words; + edm = bcm2835_sdhost_read(host, SDEDM); + words = SDDATA_FIFO_WORDS - ((edm >> 4) & 0x1f); + + if (words < burst_words) { + int fsm_state = (edm & SDEDM_FSM_MASK); + if ((fsm_state != SDEDM_FSM_WRITEDATA) && + (fsm_state != SDEDM_FSM_WRITESTART1) && + (fsm_state != SDEDM_FSM_WRITESTART2)) { + hsts = bcm2835_sdhost_read(host, + SDHSTS); + pr_info("%s: fsm %x, hsts %x\n", + mmc_hostname(host->mmc), + fsm_state, hsts); + if (hsts & SDHSTS_ERROR_MASK) + break; + } + + if (time_after(jiffies, wait_max)) { + pr_err("%s: PIO write timeout - EDM %x\n", + mmc_hostname(host->mmc), + edm); + hsts = SDHSTS_REW_TIME_OUT; + break; + } + ndelay((burst_words - words) * + host->ns_per_fifo_word); + continue; + } else if (words > copy_words) { + words = copy_words; + } + + copy_words -= words; + + while (words) { + bcm2835_sdhost_write(host, *(buf++), SDDATA); + words--; + } + } + + if (hsts & SDHSTS_ERROR_MASK) + break; + } + + sg_miter_stop(&host->sg_miter); + + local_irq_restore(flags); +} + +static void bcm2835_sdhost_transfer_pio(struct bcm2835_host *host) +{ + u32 sdhsts; + bool is_read; + BUG_ON(!host->data); + log_event("XFP<", (u32)host->data, host->blocks); + + is_read = (host->data->flags & MMC_DATA_READ) != 0; + if (is_read) + bcm2835_sdhost_read_block_pio(host); + else + bcm2835_sdhost_write_block_pio(host); + + sdhsts = bcm2835_sdhost_read(host, SDHSTS); + if (sdhsts & (SDHSTS_CRC16_ERROR | + SDHSTS_CRC7_ERROR | + SDHSTS_FIFO_ERROR)) { + pr_err("%s: %s transfer error - HSTS %x\n", + mmc_hostname(host->mmc), + is_read ? "read" : "write", + sdhsts); + host->data->error = -EILSEQ; + } else if ((sdhsts & (SDHSTS_CMD_TIME_OUT | + SDHSTS_REW_TIME_OUT))) { + pr_err("%s: %s timeout error - HSTS %x\n", + mmc_hostname(host->mmc), + is_read ? "read" : "write", + sdhsts); + host->data->error = -ETIMEDOUT; + } + log_event("XFP>", (u32)host->data, host->blocks); +} + +static void bcm2835_sdhost_prepare_dma(struct bcm2835_host *host, + struct mmc_data *data) +{ + int len, dir_data, dir_slave; + struct dma_async_tx_descriptor *desc = NULL; + struct dma_chan *dma_chan; + + log_event("PRD<", (u32)data, 0); + pr_debug("bcm2835_sdhost_prepare_dma()\n"); + + dma_chan = host->dma_chan_rxtx; + if (data->flags & MMC_DATA_READ) { + dir_data = DMA_FROM_DEVICE; + dir_slave = DMA_DEV_TO_MEM; + } else { + dir_data = DMA_TO_DEVICE; + dir_slave = DMA_MEM_TO_DEV; + } + log_event("PRD1", (u32)dma_chan, 0); + + BUG_ON(!dma_chan->device); + BUG_ON(!dma_chan->device->dev); + BUG_ON(!data->sg); + + /* The block doesn't manage the FIFO DREQs properly for multi-block + transfers, so don't attempt to DMA the final few words. + Unfortunately this requires the final sg entry to be trimmed. + N.B. This code demands that the overspill is contained in + a single sg entry. + */ + + host->drain_words = 0; + if ((data->blocks > 1) && (dir_data == DMA_FROM_DEVICE)) { + struct scatterlist *sg; + u32 len; + int i; + + len = min((u32)(FIFO_READ_THRESHOLD - 1) * 4, + (u32)data->blocks * data->blksz); + + for_each_sg(data->sg, sg, data->sg_len, i) { + if (sg_is_last(sg)) { + BUG_ON(sg->length < len); + sg->length -= len; + host->drain_page = sg_page(sg); + host->drain_offset = sg->offset + sg->length; + } + } + host->drain_words = len/4; + } + + /* The parameters have already been validated, so this will not fail */ + (void)dmaengine_slave_config(dma_chan, + (dir_data == DMA_FROM_DEVICE) ? + &host->dma_cfg_rx : + &host->dma_cfg_tx); + + len = dma_map_sg(dma_chan->device->dev, data->sg, data->sg_len, + dir_data); + + log_event("PRD2", len, 0); + if (len > 0) + desc = dmaengine_prep_slave_sg(dma_chan, data->sg, + len, dir_slave, + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); + log_event("PRD3", (u32)desc, 0); + + if (desc) { + desc->callback = bcm2835_sdhost_dma_complete; + desc->callback_param = host; + host->dma_desc = desc; + host->dma_chan = dma_chan; + host->dma_dir = dir_data; + } + log_event("PDM>", (u32)data, 0); +} + +static void bcm2835_sdhost_start_dma(struct bcm2835_host *host) +{ + log_event("SDMA", (u32)host->data, (u32)host->dma_chan); + dmaengine_submit(host->dma_desc); + dma_async_issue_pending(host->dma_chan); +} + +static void bcm2835_sdhost_set_transfer_irqs(struct bcm2835_host *host) +{ + u32 all_irqs = SDHCFG_DATA_IRPT_EN | SDHCFG_BLOCK_IRPT_EN | + SDHCFG_BUSY_IRPT_EN; + if (host->dma_desc) + host->hcfg = (host->hcfg & ~all_irqs) | + SDHCFG_BUSY_IRPT_EN; + else + host->hcfg = (host->hcfg & ~all_irqs) | + SDHCFG_DATA_IRPT_EN | + SDHCFG_BUSY_IRPT_EN; + + bcm2835_sdhost_write(host, host->hcfg, SDHCFG); +} + +static void bcm2835_sdhost_prepare_data(struct bcm2835_host *host, struct mmc_command *cmd) +{ + struct mmc_data *data = cmd->data; + + WARN_ON(host->data); + + host->data = data; + if (!data) + return; + + /* Sanity checks */ + BUG_ON(data->blksz * data->blocks > 524288); + BUG_ON(data->blksz > host->mmc->max_blk_size); + BUG_ON(data->blocks > 65535); + + host->data_complete = 0; + host->flush_fifo = 0; + host->data->bytes_xfered = 0; + + if (!host->sectors && host->mmc->card) { + struct mmc_card *card = host->mmc->card; + if (!mmc_card_sd(card) && mmc_card_blockaddr(card)) { + /* + * The EXT_CSD sector count is in number of 512 byte + * sectors. + */ + host->sectors = card->ext_csd.sectors; + } else { + /* + * The CSD capacity field is in units of read_blkbits. + * set_capacity takes units of 512 bytes. + */ + host->sectors = card->csd.capacity << + (card->csd.read_blkbits - 9); + } + } + + if (!host->dma_desc) { + /* Use PIO */ + int flags = SG_MITER_ATOMIC; + + if (data->flags & MMC_DATA_READ) + flags |= SG_MITER_TO_SG; + else + flags |= SG_MITER_FROM_SG; + sg_miter_start(&host->sg_miter, data->sg, data->sg_len, flags); + host->blocks = data->blocks; + } + + bcm2835_sdhost_set_transfer_irqs(host); + + bcm2835_sdhost_write(host, data->blksz, SDHBCT); + bcm2835_sdhost_write(host, data->blocks, SDHBLC); + + BUG_ON(!host->data); +} + +bool bcm2835_sdhost_send_command(struct bcm2835_host *host, + struct mmc_command *cmd) +{ + u32 sdcmd, sdhsts; + unsigned long timeout; + int delay; + + WARN_ON(host->cmd); + log_event("CMD<", cmd->opcode, cmd->arg); + + if (cmd->data) + pr_debug("%s: send_command %d 0x%x " + "(flags 0x%x) - %s %d*%d\n", + mmc_hostname(host->mmc), + cmd->opcode, cmd->arg, cmd->flags, + (cmd->data->flags & MMC_DATA_READ) ? + "read" : "write", cmd->data->blocks, + cmd->data->blksz); + else + pr_debug("%s: send_command %d 0x%x (flags 0x%x)\n", + mmc_hostname(host->mmc), + cmd->opcode, cmd->arg, cmd->flags); + + /* Wait max 100 ms */ + timeout = 10000; + + while (bcm2835_sdhost_read(host, SDCMD) & SDCMD_NEW_FLAG) { + if (timeout == 0) { + pr_warn("%s: previous command never completed.\n", + mmc_hostname(host->mmc)); + if (host->debug) + bcm2835_sdhost_dumpregs(host); + cmd->error = -EILSEQ; + tasklet_schedule(&host->finish_tasklet); + return false; + } + timeout--; + udelay(10); + } + + delay = (10000 - timeout)/100; + if (delay > host->max_delay) { + host->max_delay = delay; + pr_warning("%s: controller hung for %d ms\n", + mmc_hostname(host->mmc), + host->max_delay); + } + + timeout = jiffies; + if (!cmd->data && cmd->busy_timeout > 9000) + timeout += DIV_ROUND_UP(cmd->busy_timeout, 1000) * HZ + HZ; + else + timeout += 10 * HZ; + mod_timer(&host->timer, timeout); + + host->cmd = cmd; + + /* Clear any error flags */ + sdhsts = bcm2835_sdhost_read(host, SDHSTS); + if (sdhsts & SDHSTS_ERROR_MASK) + bcm2835_sdhost_write(host, sdhsts, SDHSTS); + + if ((cmd->flags & MMC_RSP_136) && (cmd->flags & MMC_RSP_BUSY)) { + pr_err("%s: unsupported response type!\n", + mmc_hostname(host->mmc)); + cmd->error = -EINVAL; + tasklet_schedule(&host->finish_tasklet); + return false; + } + + bcm2835_sdhost_prepare_data(host, cmd); + + bcm2835_sdhost_write(host, cmd->arg, SDARG); + + sdcmd = cmd->opcode & SDCMD_CMD_MASK; + + host->use_busy = 0; + if (!(cmd->flags & MMC_RSP_PRESENT)) { + sdcmd |= SDCMD_NO_RESPONSE; + } else { + if (cmd->flags & MMC_RSP_136) + sdcmd |= SDCMD_LONG_RESPONSE; + if (cmd->flags & MMC_RSP_BUSY) { + sdcmd |= SDCMD_BUSYWAIT; + host->use_busy = 1; + } + } + + if (cmd->data) { + log_event("CMDD", cmd->data->blocks, cmd->data->blksz); + if (host->delay_after_this_stop) { + struct timeval now; + int time_since_stop; + do_gettimeofday(&now); + time_since_stop = (now.tv_sec - host->stop_time.tv_sec); + if (time_since_stop < 2) { + /* Possibly less than one second */ + time_since_stop = time_since_stop * 1000000 + + (now.tv_usec - host->stop_time.tv_usec); + if (time_since_stop < + host->delay_after_this_stop) + udelay(host->delay_after_this_stop - + time_since_stop); + } + } + + host->delay_after_this_stop = host->delay_after_stop; + if ((cmd->data->flags & MMC_DATA_READ) && !host->use_sbc) { + /* See if read crosses one of the hazardous sectors */ + u32 first_blk, last_blk; + + /* Intentionally include the following sector because + without CMD23/SBC the read may run on. */ + first_blk = host->mrq->cmd->arg; + last_blk = first_blk + cmd->data->blocks; + + if (((last_blk >= (host->sectors - 64)) && + (first_blk <= (host->sectors - 64))) || + ((last_blk >= (host->sectors - 32)) && + (first_blk <= (host->sectors - 32)))) { + host->delay_after_this_stop = + max(250u, host->delay_after_stop); + } + } + + if (cmd->data->flags & MMC_DATA_WRITE) + sdcmd |= SDCMD_WRITE_CMD; + if (cmd->data->flags & MMC_DATA_READ) + sdcmd |= SDCMD_READ_CMD; + } + + bcm2835_sdhost_write(host, sdcmd | SDCMD_NEW_FLAG, SDCMD); + + return true; +} + +static void bcm2835_sdhost_finish_command(struct bcm2835_host *host, + unsigned long *irq_flags); +static void bcm2835_sdhost_transfer_complete(struct bcm2835_host *host); + +static void bcm2835_sdhost_finish_data(struct bcm2835_host *host) +{ + struct mmc_data *data; + + data = host->data; + BUG_ON(!data); + + log_event("FDA<", (u32)host->mrq, (u32)host->cmd); + pr_debug("finish_data(error %d, stop %d, sbc %d)\n", + data->error, data->stop ? 1 : 0, + host->mrq->sbc ? 1 : 0); + + host->hcfg &= ~(SDHCFG_DATA_IRPT_EN | SDHCFG_BLOCK_IRPT_EN); + bcm2835_sdhost_write(host, host->hcfg, SDHCFG); + + data->bytes_xfered = data->error ? 0 : (data->blksz * data->blocks); + + host->data_complete = 1; + + if (host->cmd) { + /* + * Data managed to finish before the + * command completed. Make sure we do + * things in the proper order. + */ + pr_debug("Finished early - HSTS %x\n", + bcm2835_sdhost_read(host, SDHSTS)); + } + else + bcm2835_sdhost_transfer_complete(host); + log_event("FDA>", (u32)host->mrq, (u32)host->cmd); +} + +static void bcm2835_sdhost_transfer_complete(struct bcm2835_host *host) +{ + struct mmc_data *data; + + BUG_ON(host->cmd); + BUG_ON(!host->data); + BUG_ON(!host->data_complete); + + data = host->data; + host->data = NULL; + + log_event("TCM<", (u32)data, data->error); + pr_debug("transfer_complete(error %d, stop %d)\n", + data->error, data->stop ? 1 : 0); + + /* + * Need to send CMD12 if - + * a) open-ended multiblock transfer (no CMD23) + * b) error in multiblock transfer + */ + if (host->mrq->stop && (data->error || !host->use_sbc)) { + if (bcm2835_sdhost_send_command(host, host->mrq->stop)) { + /* No busy, so poll for completion */ + if (!host->use_busy) + bcm2835_sdhost_finish_command(host, NULL); + + if (host->delay_after_this_stop) + do_gettimeofday(&host->stop_time); + } + } else { + bcm2835_sdhost_wait_transfer_complete(host); + tasklet_schedule(&host->finish_tasklet); + } + log_event("TCM>", (u32)data, 0); +} + +/* If irq_flags is valid, the caller is in a thread context and is allowed + to sleep */ +static void bcm2835_sdhost_finish_command(struct bcm2835_host *host, + unsigned long *irq_flags) +{ + u32 sdcmd; + u32 retries; +#ifdef DEBUG + struct timeval before, after; + int timediff = 0; +#endif + + log_event("FCM<", (u32)host->mrq, (u32)host->cmd); + pr_debug("finish_command(%x)\n", bcm2835_sdhost_read(host, SDCMD)); + + BUG_ON(!host->cmd || !host->mrq); + + /* Poll quickly at first */ + + retries = host->cmd_quick_poll_retries; + if (!retries) { + /* Work out how many polls take 1us by timing 10us */ + struct timeval start, now; + int us_diff; + + retries = 1; + do { + int i; + + retries *= 2; + + do_gettimeofday(&start); + + for (i = 0; i < retries; i++) { + cpu_relax(); + sdcmd = bcm2835_sdhost_read(host, SDCMD); + } + + do_gettimeofday(&now); + us_diff = (now.tv_sec - start.tv_sec) * 1000000 + + (now.tv_usec - start.tv_usec); + } while (us_diff < 10); + + host->cmd_quick_poll_retries = ((retries * us_diff + 9)*CMD_DALLY_US)/10 + 1; + retries = 1; // We've already waited long enough this time + } + + for (sdcmd = bcm2835_sdhost_read(host, SDCMD); + (sdcmd & SDCMD_NEW_FLAG) && retries; + retries--) { + cpu_relax(); + sdcmd = bcm2835_sdhost_read(host, SDCMD); + } + + if (!retries) { + unsigned long wait_max; + + if (!irq_flags) { + /* Schedule the work */ + log_event("CWWQ", 0, 0); + schedule_work(&host->cmd_wait_wq); + return; + } + + /* Wait max 100 ms */ + wait_max = jiffies + msecs_to_jiffies(100); + while (time_before(jiffies, wait_max)) { + spin_unlock_irqrestore(&host->lock, *irq_flags); + usleep_range(1, 10); + spin_lock_irqsave(&host->lock, *irq_flags); + sdcmd = bcm2835_sdhost_read(host, SDCMD); + if (!(sdcmd & SDCMD_NEW_FLAG)) + break; + } + } + + /* Check for errors */ + if (sdcmd & SDCMD_NEW_FLAG) { + if (host->debug) { + pr_err("%s: command %d never completed.\n", + mmc_hostname(host->mmc), host->cmd->opcode); + bcm2835_sdhost_dumpregs(host); + } + host->cmd->error = -EILSEQ; + tasklet_schedule(&host->finish_tasklet); + return; + } else if (sdcmd & SDCMD_FAIL_FLAG) { + u32 sdhsts = bcm2835_sdhost_read(host, SDHSTS); + + /* Clear the errors */ + bcm2835_sdhost_write(host, SDHSTS_ERROR_MASK, SDHSTS); + + if (host->debug) + pr_info("%s: error detected - CMD %x, HSTS %03x, EDM %x\n", + mmc_hostname(host->mmc), sdcmd, sdhsts, + bcm2835_sdhost_read(host, SDEDM)); + + if ((sdhsts & SDHSTS_CRC7_ERROR) && + (host->cmd->opcode == 1)) { + if (host->debug) + pr_info("%s: ignoring CRC7 error for CMD1\n", + mmc_hostname(host->mmc)); + } else { + if (sdhsts & SDHSTS_CMD_TIME_OUT) { + if (host->debug) + pr_warn("%s: command %d timeout\n", + mmc_hostname(host->mmc), + host->cmd->opcode); + host->cmd->error = -ETIMEDOUT; + } else { + pr_warn("%s: unexpected command %d error\n", + mmc_hostname(host->mmc), + host->cmd->opcode); + host->cmd->error = -EILSEQ; + } + tasklet_schedule(&host->finish_tasklet); + return; + } + } + + if (host->cmd->flags & MMC_RSP_PRESENT) { + if (host->cmd->flags & MMC_RSP_136) { + int i; + for (i = 0; i < 4; i++) + host->cmd->resp[3 - i] = bcm2835_sdhost_read(host, SDRSP0 + i*4); + pr_debug("%s: finish_command %08x %08x %08x %08x\n", + mmc_hostname(host->mmc), + host->cmd->resp[0], host->cmd->resp[1], host->cmd->resp[2], host->cmd->resp[3]); + log_event("RSP ", host->cmd->resp[0], host->cmd->resp[1]); + } else { + host->cmd->resp[0] = bcm2835_sdhost_read(host, SDRSP0); + pr_debug("%s: finish_command %08x\n", + mmc_hostname(host->mmc), + host->cmd->resp[0]); + log_event("RSP ", host->cmd->resp[0], 0); + } + } + + if (host->cmd == host->mrq->sbc) { + /* Finished CMD23, now send actual command. */ + host->cmd = NULL; + if (bcm2835_sdhost_send_command(host, host->mrq->cmd)) { + if (host->data && host->dma_desc) + /* DMA transfer starts now, PIO starts after irq */ + bcm2835_sdhost_start_dma(host); + + if (!host->use_busy) + bcm2835_sdhost_finish_command(host, NULL); + } + } else if (host->cmd == host->mrq->stop) { + /* Finished CMD12 */ + tasklet_schedule(&host->finish_tasklet); + } else { + /* Processed actual command. */ + host->cmd = NULL; + if (!host->data) + tasklet_schedule(&host->finish_tasklet); + else if (host->data_complete) + bcm2835_sdhost_transfer_complete(host); + } + log_event("FCM>", (u32)host->mrq, (u32)host->cmd); +} + +static void bcm2835_sdhost_timeout(unsigned long data) +{ + struct bcm2835_host *host; + unsigned long flags; + + host = (struct bcm2835_host *)data; + + spin_lock_irqsave(&host->lock, flags); + log_event("TIM<", 0, 0); + + if (host->mrq) { + pr_err("%s: timeout waiting for hardware interrupt.\n", + mmc_hostname(host->mmc)); + log_dump(); + bcm2835_sdhost_dumpregs(host); + + if (host->data) { + host->data->error = -ETIMEDOUT; + bcm2835_sdhost_finish_data(host); + } else { + if (host->cmd) + host->cmd->error = -ETIMEDOUT; + else + host->mrq->cmd->error = -ETIMEDOUT; + + pr_debug("timeout_timer tasklet_schedule\n"); + tasklet_schedule(&host->finish_tasklet); + } + } + + mmiowb(); + spin_unlock_irqrestore(&host->lock, flags); +} + +static void bcm2835_sdhost_busy_irq(struct bcm2835_host *host, u32 intmask) +{ + log_event("IRQB", (u32)host->cmd, intmask); + if (!host->cmd) { + pr_err("%s: got command busy interrupt 0x%08x even " + "though no command operation was in progress.\n", + mmc_hostname(host->mmc), (unsigned)intmask); + bcm2835_sdhost_dumpregs(host); + return; + } + + if (!host->use_busy) { + pr_err("%s: got command busy interrupt 0x%08x even " + "though not expecting one.\n", + mmc_hostname(host->mmc), (unsigned)intmask); + bcm2835_sdhost_dumpregs(host); + return; + } + host->use_busy = 0; + + if (intmask & SDHSTS_ERROR_MASK) + { + pr_err("sdhost_busy_irq: intmask %x, data %p\n", intmask, host->mrq->data); + if (intmask & SDHSTS_CRC7_ERROR) + host->cmd->error = -EILSEQ; + else if (intmask & (SDHSTS_CRC16_ERROR | + SDHSTS_FIFO_ERROR)) { + if (host->mrq->data) + host->mrq->data->error = -EILSEQ; + else + host->cmd->error = -EILSEQ; + } else if (intmask & SDHSTS_REW_TIME_OUT) { + if (host->mrq->data) + host->mrq->data->error = -ETIMEDOUT; + else + host->cmd->error = -ETIMEDOUT; + } else if (intmask & SDHSTS_CMD_TIME_OUT) + host->cmd->error = -ETIMEDOUT; + + if (host->debug) { + log_dump(); + bcm2835_sdhost_dumpregs(host); + } + } + else + bcm2835_sdhost_finish_command(host, NULL); +} + +static void bcm2835_sdhost_data_irq(struct bcm2835_host *host, u32 intmask) +{ + /* There are no dedicated data/space available interrupt + status bits, so it is necessary to use the single shared + data/space available FIFO status bits. It is therefore not + an error to get here when there is no data transfer in + progress. */ + log_event("IRQD", (u32)host->data, intmask); + if (!host->data) + return; + + if (intmask & (SDHSTS_CRC16_ERROR | + SDHSTS_FIFO_ERROR | + SDHSTS_REW_TIME_OUT)) { + if (intmask & (SDHSTS_CRC16_ERROR | + SDHSTS_FIFO_ERROR)) + host->data->error = -EILSEQ; + else + host->data->error = -ETIMEDOUT; + + if (host->debug) { + log_dump(); + bcm2835_sdhost_dumpregs(host); + } + } + + if (host->data->error) { + bcm2835_sdhost_finish_data(host); + } else if (host->data->flags & MMC_DATA_WRITE) { + /* Use the block interrupt for writes after the first block */ + host->hcfg &= ~(SDHCFG_DATA_IRPT_EN); + host->hcfg |= SDHCFG_BLOCK_IRPT_EN; + bcm2835_sdhost_write(host, host->hcfg, SDHCFG); + bcm2835_sdhost_transfer_pio(host); + } else { + bcm2835_sdhost_transfer_pio(host); + host->blocks--; + if ((host->blocks == 0) || host->data->error) + bcm2835_sdhost_finish_data(host); + } +} + +static void bcm2835_sdhost_block_irq(struct bcm2835_host *host, u32 intmask) +{ + log_event("IRQK", (u32)host->data, intmask); + if (!host->data) { + pr_err("%s: got block interrupt 0x%08x even " + "though no data operation was in progress.\n", + mmc_hostname(host->mmc), (unsigned)intmask); + bcm2835_sdhost_dumpregs(host); + return; + } + + if (intmask & (SDHSTS_CRC16_ERROR | + SDHSTS_FIFO_ERROR | + SDHSTS_REW_TIME_OUT)) { + if (intmask & (SDHSTS_CRC16_ERROR | + SDHSTS_FIFO_ERROR)) + host->data->error = -EILSEQ; + else + host->data->error = -ETIMEDOUT; + + if (host->debug) { + log_dump(); + bcm2835_sdhost_dumpregs(host); + } + } + + if (!host->dma_desc) { + BUG_ON(!host->blocks); + if (host->data->error || (--host->blocks == 0)) { + bcm2835_sdhost_finish_data(host); + } else { + bcm2835_sdhost_transfer_pio(host); + } + } else if (host->data->flags & MMC_DATA_WRITE) { + bcm2835_sdhost_finish_data(host); + } +} + +static irqreturn_t bcm2835_sdhost_irq(int irq, void *dev_id) +{ + irqreturn_t result = IRQ_NONE; + struct bcm2835_host *host = dev_id; + u32 intmask; + + spin_lock(&host->lock); + + intmask = bcm2835_sdhost_read(host, SDHSTS); + log_event("IRQ<", intmask, 0); + + bcm2835_sdhost_write(host, + SDHSTS_BUSY_IRPT | + SDHSTS_BLOCK_IRPT | + SDHSTS_SDIO_IRPT | + SDHSTS_DATA_FLAG, + SDHSTS); + + if (intmask & SDHSTS_BLOCK_IRPT) { + bcm2835_sdhost_block_irq(host, intmask); + result = IRQ_HANDLED; + } + + if (intmask & SDHSTS_BUSY_IRPT) { + bcm2835_sdhost_busy_irq(host, intmask); + result = IRQ_HANDLED; + } + + /* There is no true data interrupt status bit, so it is + necessary to qualify the data flag with the interrupt + enable bit */ + if ((intmask & SDHSTS_DATA_FLAG) && + (host->hcfg & SDHCFG_DATA_IRPT_EN)) { + bcm2835_sdhost_data_irq(host, intmask); + result = IRQ_HANDLED; + } + + mmiowb(); + + log_event("IRQ>", bcm2835_sdhost_read(host, SDHSTS), 0); + spin_unlock(&host->lock); + + return result; +} + +void bcm2835_sdhost_set_clock(struct bcm2835_host *host, unsigned int clock) +{ + int div = 0; /* Initialized for compiler warning */ + unsigned int input_clock = clock; + unsigned long flags; + + if (host->debug) + pr_info("%s: set_clock(%d)\n", mmc_hostname(host->mmc), clock); + + if ((host->overclock_50 > 50) && + (clock == 50*MHZ)) + clock = host->overclock_50 * MHZ + (MHZ - 1); + + /* The SDCDIV register has 11 bits, and holds (div - 2). + But in data mode the max is 50MHz wihout a minimum, and only the + bottom 3 bits are used. Since the switch over is automatic (unless + we have marked the card as slow...), chosen values have to make + sense in both modes. + Ident mode must be 100-400KHz, so can range check the requested + clock. CMD15 must be used to return to data mode, so this can be + monitored. + + clock 250MHz -> 0->125MHz, 1->83.3MHz, 2->62.5MHz, 3->50.0MHz + 4->41.7MHz, 5->35.7MHz, 6->31.3MHz, 7->27.8MHz + + 623->400KHz/27.8MHz + reset value (507)->491159/50MHz + + BUT, the 3-bit clock divisor in data mode is too small if the + core clock is higher than 250MHz, so instead use the SLOW_CARD + configuration bit to force the use of the ident clock divisor + at all times. + */ + + host->mmc->actual_clock = 0; + + if (host->firmware_sets_cdiv) { + u32 msg[3] = { clock, 0, 0 }; + + rpi_firmware_property(rpi_firmware_get(NULL), + RPI_FIRMWARE_SET_SDHOST_CLOCK, + &msg, sizeof(msg)); + + clock = max(msg[1], msg[2]); + spin_lock_irqsave(&host->lock, flags); + } else { + spin_lock_irqsave(&host->lock, flags); + if (clock < 100000) { + /* Can't stop the clock, but make it as slow as + * possible to show willing + */ + host->cdiv = SDCDIV_MAX_CDIV; + bcm2835_sdhost_write(host, host->cdiv, SDCDIV); + mmiowb(); + spin_unlock_irqrestore(&host->lock, flags); + return; + } + + div = host->max_clk / clock; + if (div < 2) + div = 2; + if ((host->max_clk / div) > clock) + div++; + div -= 2; + + if (div > SDCDIV_MAX_CDIV) + div = SDCDIV_MAX_CDIV; + + clock = host->max_clk / (div + 2); + + host->cdiv = div; + bcm2835_sdhost_write(host, host->cdiv, SDCDIV); + + if (host->debug) + pr_info("%s: clock=%d -> max_clk=%d, cdiv=%x " + "(actual clock %d)\n", + mmc_hostname(host->mmc), input_clock, + host->max_clk, host->cdiv, + clock); + } + + /* Calibrate some delays */ + + host->ns_per_fifo_word = (1000000000/clock) * + ((host->mmc->caps & MMC_CAP_4_BIT_DATA) ? 8 : 32); + + if (input_clock == 50 * MHZ) { + if (clock > input_clock) { + /* Save the closest value, to make it easier + to reduce in the event of error */ + host->overclock_50 = (clock/MHZ); + + if (clock != host->overclock) { + pr_info("%s: overclocking to %dHz\n", + mmc_hostname(host->mmc), clock); + host->overclock = clock; + } + } else if (host->overclock) { + host->overclock = 0; + if (clock == 50 * MHZ) + pr_warn("%s: cancelling overclock\n", + mmc_hostname(host->mmc)); + } + } else if (input_clock == 0) { + /* Reset the preferred overclock when the clock is stopped. + * This always happens during initialisation. */ + host->overclock_50 = host->user_overclock_50; + host->overclock = 0; + } + + /* Set the timeout to 500ms */ + bcm2835_sdhost_write(host, clock/2, SDTOUT); + + host->mmc->actual_clock = clock; + host->clock = input_clock; + host->reset_clock = 0; + + mmiowb(); + spin_unlock_irqrestore(&host->lock, flags); +} + +static void bcm2835_sdhost_request(struct mmc_host *mmc, struct mmc_request *mrq) +{ + struct bcm2835_host *host; + unsigned long flags; + u32 edm, fsm; + + host = mmc_priv(mmc); + + if (host->debug) { + struct mmc_command *cmd = mrq->cmd; + BUG_ON(!cmd); + if (cmd->data) + pr_info("%s: cmd %d 0x%x (flags 0x%x) - %s %d*%d\n", + mmc_hostname(mmc), + cmd->opcode, cmd->arg, cmd->flags, + (cmd->data->flags & MMC_DATA_READ) ? + "read" : "write", cmd->data->blocks, + cmd->data->blksz); + else + pr_info("%s: cmd %d 0x%x (flags 0x%x)\n", + mmc_hostname(mmc), + cmd->opcode, cmd->arg, cmd->flags); + } + + /* Reset the error statuses in case this is a retry */ + if (mrq->sbc) + mrq->sbc->error = 0; + if (mrq->cmd) + mrq->cmd->error = 0; + if (mrq->data) + mrq->data->error = 0; + if (mrq->stop) + mrq->stop->error = 0; + + if (mrq->data && !is_power_of_2(mrq->data->blksz)) { + pr_err("%s: unsupported block size (%d bytes)\n", + mmc_hostname(mmc), mrq->data->blksz); + mrq->cmd->error = -EINVAL; + mmc_request_done(mmc, mrq); + return; + } + + if (host->use_dma && mrq->data && + (mrq->data->blocks > host->pio_limit)) + bcm2835_sdhost_prepare_dma(host, mrq->data); + + if (host->reset_clock) + bcm2835_sdhost_set_clock(host, host->clock); + + spin_lock_irqsave(&host->lock, flags); + + WARN_ON(host->mrq != NULL); + host->mrq = mrq; + + edm = bcm2835_sdhost_read(host, SDEDM); + fsm = edm & SDEDM_FSM_MASK; + + log_event("REQ<", (u32)mrq, edm); + if ((fsm != SDEDM_FSM_IDENTMODE) && + (fsm != SDEDM_FSM_DATAMODE)) { + log_event("REQ!", (u32)mrq, edm); + if (host->debug) { + pr_warn("%s: previous command (%d) not complete (EDM %x)\n", + mmc_hostname(host->mmc), + bcm2835_sdhost_read(host, SDCMD) & SDCMD_CMD_MASK, + edm); + log_dump(); + bcm2835_sdhost_dumpregs(host); + } + mrq->cmd->error = -EILSEQ; + tasklet_schedule(&host->finish_tasklet); + mmiowb(); + spin_unlock_irqrestore(&host->lock, flags); + return; + } + + host->use_sbc = !!mrq->sbc && + (host->mrq->data->flags & USE_CMD23_FLAGS); + if (host->use_sbc) { + if (bcm2835_sdhost_send_command(host, mrq->sbc)) { + if (!host->use_busy) + bcm2835_sdhost_finish_command(host, &flags); + } + } else if (bcm2835_sdhost_send_command(host, mrq->cmd)) { + if (host->data && host->dma_desc) + /* DMA transfer starts now, PIO starts after irq */ + bcm2835_sdhost_start_dma(host); + + if (!host->use_busy) + bcm2835_sdhost_finish_command(host, &flags); + } + + log_event("CMD ", (u32)mrq->cmd->opcode, + mrq->data ? (u32)mrq->data->blksz : 0); + mmiowb(); + + log_event("REQ>", (u32)mrq, 0); + spin_unlock_irqrestore(&host->lock, flags); +} + +static void bcm2835_sdhost_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) +{ + + struct bcm2835_host *host = mmc_priv(mmc); + unsigned long flags; + + if (host->debug) + pr_info("%s: ios clock %d, pwr %d, bus_width %d, " + "timing %d, vdd %d, drv_type %d\n", + mmc_hostname(mmc), + ios->clock, ios->power_mode, ios->bus_width, + ios->timing, ios->signal_voltage, ios->drv_type); + + spin_lock_irqsave(&host->lock, flags); + + log_event("IOS<", ios->clock, 0); + + /* set bus width */ + host->hcfg &= ~SDHCFG_WIDE_EXT_BUS; + if (ios->bus_width == MMC_BUS_WIDTH_4) + host->hcfg |= SDHCFG_WIDE_EXT_BUS; + + host->hcfg |= SDHCFG_WIDE_INT_BUS; + + /* Disable clever clock switching, to cope with fast core clocks */ + host->hcfg |= SDHCFG_SLOW_CARD; + + bcm2835_sdhost_write(host, host->hcfg, SDHCFG); + + mmiowb(); + + spin_unlock_irqrestore(&host->lock, flags); + + if (!ios->clock || ios->clock != host->clock) + bcm2835_sdhost_set_clock(host, ios->clock); +} + +static struct mmc_host_ops bcm2835_sdhost_ops = { + .request = bcm2835_sdhost_request, + .set_ios = bcm2835_sdhost_set_ios, + .hw_reset = bcm2835_sdhost_reset, +}; + +static void bcm2835_sdhost_cmd_wait_work(struct work_struct *work) +{ + struct bcm2835_host *host; + unsigned long flags; + + host = container_of(work, struct bcm2835_host, cmd_wait_wq); + + spin_lock_irqsave(&host->lock, flags); + + log_event("CWK<", (u32)host->cmd, (u32)host->mrq); + + /* + * If this tasklet gets rescheduled while running, it will + * be run again afterwards but without any active request. + */ + if (!host->mrq) { + spin_unlock_irqrestore(&host->lock, flags); + return; + } + + bcm2835_sdhost_finish_command(host, &flags); + + mmiowb(); + + log_event("CWK>", (u32)host->cmd, 0); + + spin_unlock_irqrestore(&host->lock, flags); +} + +static void bcm2835_sdhost_tasklet_finish(unsigned long param) +{ + struct bcm2835_host *host; + unsigned long flags; + struct mmc_request *mrq; + struct dma_chan *terminate_chan = NULL; + + host = (struct bcm2835_host *)param; + + spin_lock_irqsave(&host->lock, flags); + + log_event("TSK<", (u32)host->mrq, 0); + /* + * If this tasklet gets rescheduled while running, it will + * be run again afterwards but without any active request. + */ + if (!host->mrq) { + spin_unlock_irqrestore(&host->lock, flags); + return; + } + + del_timer(&host->timer); + + mrq = host->mrq; + + /* Drop the overclock after any data corruption, or after any + * error while overclocked. Ignore errors for status commands, + * as they are likely when a card is ejected. */ + if (host->overclock) { + if ((mrq->cmd && mrq->cmd->error && + (mrq->cmd->opcode != MMC_SEND_STATUS)) || + (mrq->data && mrq->data->error) || + (mrq->stop && mrq->stop->error) || + (mrq->sbc && mrq->sbc->error)) { + host->overclock_50--; + pr_warn("%s: reducing overclock due to errors\n", + mmc_hostname(host->mmc)); + host->reset_clock = 1; + mrq->cmd->error = -ETIMEDOUT; + mrq->cmd->retries = 1; + } + } + + host->mrq = NULL; + host->cmd = NULL; + host->data = NULL; + + mmiowb(); + + host->dma_desc = NULL; + terminate_chan = host->dma_chan; + host->dma_chan = NULL; + + spin_unlock_irqrestore(&host->lock, flags); + + if (terminate_chan) + { + int err = dmaengine_terminate_all(terminate_chan); + if (err) + pr_err("%s: failed to terminate DMA (%d)\n", + mmc_hostname(host->mmc), err); + } + + /* The SDHOST block doesn't report any errors for a disconnected + interface. All cards and SDIO devices should report some supported + voltage range, so a zero response to SEND_OP_COND, IO_SEND_OP_COND + or APP_SEND_OP_COND can be treated as an error. */ + if (((mrq->cmd->opcode == MMC_SEND_OP_COND) || + (mrq->cmd->opcode == SD_IO_SEND_OP_COND) || + (mrq->cmd->opcode == SD_APP_OP_COND)) && + (mrq->cmd->error == 0) && + (mrq->cmd->resp[0] == 0)) { + mrq->cmd->error = -ETIMEDOUT; + if (host->debug) + pr_info("%s: faking timeout due to zero OCR\n", + mmc_hostname(host->mmc)); + } + + mmc_request_done(host->mmc, mrq); + log_event("TSK>", (u32)mrq, 0); +} + +int bcm2835_sdhost_add_host(struct bcm2835_host *host) +{ + struct mmc_host *mmc; + struct dma_slave_config cfg; + char pio_limit_string[20]; + int ret; + + mmc = host->mmc; + + mmc->f_max = host->max_clk; + mmc->f_min = host->max_clk / SDCDIV_MAX_CDIV; + + mmc->max_busy_timeout = (~(unsigned int)0)/(mmc->f_max/1000); + + pr_debug("f_max %d, f_min %d, max_busy_timeout %d\n", + mmc->f_max, mmc->f_min, mmc->max_busy_timeout); + + /* host controller capabilities */ + mmc->caps |= + MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED | + MMC_CAP_NEEDS_POLL | MMC_CAP_HW_RESET | MMC_CAP_ERASE | + ((ALLOW_CMD23_READ|ALLOW_CMD23_WRITE) * MMC_CAP_CMD23); + + spin_lock_init(&host->lock); + + if (host->allow_dma) { + if (IS_ERR_OR_NULL(host->dma_chan_rxtx)) { + pr_err("%s: unable to initialise DMA channel. " + "Falling back to PIO\n", + mmc_hostname(mmc)); + host->use_dma = false; + } else { + cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + cfg.slave_id = 13; /* DREQ channel */ + + /* Validate the slave configurations */ + + cfg.direction = DMA_MEM_TO_DEV; + cfg.src_addr = 0; + cfg.dst_addr = host->bus_addr + SDDATA; + + ret = dmaengine_slave_config(host->dma_chan_rxtx, &cfg); + + if (ret == 0) { + host->dma_cfg_tx = cfg; + + cfg.direction = DMA_DEV_TO_MEM; + cfg.src_addr = host->bus_addr + SDDATA; + cfg.dst_addr = 0; + + ret = dmaengine_slave_config(host->dma_chan_rxtx, &cfg); + } + + if (ret == 0) { + host->dma_cfg_rx = cfg; + + host->use_dma = true; + } else { + pr_err("%s: unable to configure DMA channel. " + "Falling back to PIO\n", + mmc_hostname(mmc)); + dma_release_channel(host->dma_chan_rxtx); + host->dma_chan_rxtx = NULL; + host->use_dma = false; + } + } + } else { + host->use_dma = false; + } + + mmc->max_segs = 128; + mmc->max_req_size = 524288; + mmc->max_seg_size = mmc->max_req_size; + mmc->max_blk_size = 512; + mmc->max_blk_count = 65535; + + /* report supported voltage ranges */ + mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34; + + tasklet_init(&host->finish_tasklet, + bcm2835_sdhost_tasklet_finish, (unsigned long)host); + + INIT_WORK(&host->cmd_wait_wq, bcm2835_sdhost_cmd_wait_work); + + setup_timer(&host->timer, bcm2835_sdhost_timeout, + (unsigned long)host); + + bcm2835_sdhost_init(host, 0); + + ret = request_irq(host->irq, bcm2835_sdhost_irq, 0 /*IRQF_SHARED*/, + mmc_hostname(mmc), host); + if (ret) { + pr_err("%s: failed to request IRQ %d: %d\n", + mmc_hostname(mmc), host->irq, ret); + goto untasklet; + } + + mmiowb(); + mmc_add_host(mmc); + + pio_limit_string[0] = '\0'; + if (host->use_dma && (host->pio_limit > 0)) + sprintf(pio_limit_string, " (>%d)", host->pio_limit); + pr_info("%s: %s loaded - DMA %s%s\n", + mmc_hostname(mmc), DRIVER_NAME, + host->use_dma ? "enabled" : "disabled", + pio_limit_string); + + return 0; + +untasklet: + tasklet_kill(&host->finish_tasklet); + + return ret; +} + +static int bcm2835_sdhost_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct device_node *node = dev->of_node; + struct clk *clk; + struct resource *iomem; + struct bcm2835_host *host; + struct mmc_host *mmc; + const __be32 *addr; + u32 msg[3]; + int ret; + + pr_debug("bcm2835_sdhost_probe\n"); + mmc = mmc_alloc_host(sizeof(*host), dev); + if (!mmc) + return -ENOMEM; + + mmc->ops = &bcm2835_sdhost_ops; + host = mmc_priv(mmc); + host->mmc = mmc; + host->pio_timeout = msecs_to_jiffies(500); + host->pio_limit = 1; + host->max_delay = 1; /* Warn if over 1ms */ + host->allow_dma = 1; + spin_lock_init(&host->lock); + + iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + host->ioaddr = devm_ioremap_resource(dev, iomem); + if (IS_ERR(host->ioaddr)) { + ret = PTR_ERR(host->ioaddr); + goto err; + } + + addr = of_get_address(node, 0, NULL, NULL); + if (!addr) { + dev_err(dev, "could not get DMA-register address\n"); + return -ENODEV; + } + host->bus_addr = be32_to_cpup(addr); + pr_debug(" - ioaddr %lx, iomem->start %lx, bus_addr %lx\n", + (unsigned long)host->ioaddr, + (unsigned long)iomem->start, + (unsigned long)host->bus_addr); + + if (node) { + /* Read any custom properties */ + of_property_read_u32(node, + "brcm,delay-after-stop", + &host->delay_after_stop); + of_property_read_u32(node, + "brcm,overclock-50", + &host->user_overclock_50); + of_property_read_u32(node, + "brcm,pio-limit", + &host->pio_limit); + host->allow_dma = + !of_property_read_bool(node, "brcm,force-pio"); + host->debug = of_property_read_bool(node, "brcm,debug"); + } + + host->dma_chan = NULL; + host->dma_desc = NULL; + + /* Formally recognise the other way of disabling DMA */ + if (host->pio_limit == 0x7fffffff) + host->allow_dma = false; + + if (host->allow_dma) { + if (node) { + host->dma_chan_rxtx = + dma_request_slave_channel(dev, "rx-tx"); + if (!host->dma_chan_rxtx) + host->dma_chan_rxtx = + dma_request_slave_channel(dev, "tx"); + if (!host->dma_chan_rxtx) + host->dma_chan_rxtx = + dma_request_slave_channel(dev, "rx"); + } else { + dma_cap_mask_t mask; + + dma_cap_zero(mask); + /* we don't care about the channel, any would work */ + dma_cap_set(DMA_SLAVE, mask); + host->dma_chan_rxtx = + dma_request_channel(mask, NULL, NULL); + } + } + + clk = devm_clk_get(dev, NULL); + if (IS_ERR(clk)) { + ret = PTR_ERR(clk); + if (ret == -EPROBE_DEFER) + dev_info(dev, "could not get clk, deferring probe\n"); + else + dev_err(dev, "could not get clk\n"); + goto err; + } + + host->max_clk = clk_get_rate(clk); + + host->irq = platform_get_irq(pdev, 0); + if (host->irq <= 0) { + dev_err(dev, "get IRQ failed\n"); + ret = -EINVAL; + goto err; + } + + pr_debug(" - max_clk %lx, irq %d\n", + (unsigned long)host->max_clk, + (int)host->irq); + + log_init(dev, iomem->start - host->bus_addr); + + if (node) + mmc_of_parse(mmc); + else + mmc->caps |= MMC_CAP_4_BIT_DATA; + + msg[0] = 0; + msg[1] = ~0; + msg[2] = ~0; + + rpi_firmware_property(rpi_firmware_get(NULL), + RPI_FIRMWARE_SET_SDHOST_CLOCK, + &msg, sizeof(msg)); + + host->firmware_sets_cdiv = (msg[1] != ~0); + + ret = bcm2835_sdhost_add_host(host); + if (ret) + goto err; + + platform_set_drvdata(pdev, host); + + pr_debug("bcm2835_sdhost_probe -> OK\n"); + + return 0; + +err: + pr_debug("bcm2835_sdhost_probe -> err %d\n", ret); + mmc_free_host(mmc); + + return ret; +} + +static int bcm2835_sdhost_remove(struct platform_device *pdev) +{ + struct bcm2835_host *host = platform_get_drvdata(pdev); + + pr_debug("bcm2835_sdhost_remove\n"); + + mmc_remove_host(host->mmc); + + bcm2835_sdhost_set_power(host, false); + + free_irq(host->irq, host); + + del_timer_sync(&host->timer); + + tasklet_kill(&host->finish_tasklet); + + mmc_free_host(host->mmc); + platform_set_drvdata(pdev, NULL); + + pr_debug("bcm2835_sdhost_remove - OK\n"); + return 0; +} + +static const struct of_device_id bcm2835_sdhost_match[] = { + { .compatible = "brcm,bcm2835-sdhost" }, + { } +}; +MODULE_DEVICE_TABLE(of, bcm2835_sdhost_match); + +static struct platform_driver bcm2835_sdhost_driver = { + .probe = bcm2835_sdhost_probe, + .remove = bcm2835_sdhost_remove, + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + .of_match_table = bcm2835_sdhost_match, + }, +}; +module_platform_driver(bcm2835_sdhost_driver); + +MODULE_ALIAS("platform:sdhost-bcm2835"); +MODULE_DESCRIPTION("BCM2835 SDHost driver"); +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Phil Elwell"); From e8e26b13ffabd5f0cd7a41d9dcf74fa830eb0301 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Fri, 28 Oct 2016 15:36:43 +0100 Subject: [PATCH 043/165] vc_mem: Add vc_mem driver for querying firmware memory addresses MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: popcornmix BCM270x: Move vc_mem Make the vc_mem module available for ARCH_BCM2835 by moving it. Signed-off-by: Noralf Trønnes --- drivers/char/broadcom/Kconfig | 18 ++ drivers/char/broadcom/Makefile | 1 + drivers/char/broadcom/vc_mem.c | 422 ++++++++++++++++++++++++++++++++++++++++ include/linux/broadcom/vc_mem.h | 35 ++++ 4 files changed, 476 insertions(+) create mode 100644 drivers/char/broadcom/Kconfig create mode 100644 drivers/char/broadcom/Makefile create mode 100644 drivers/char/broadcom/vc_mem.c create mode 100644 include/linux/broadcom/vc_mem.h diff --git a/drivers/char/broadcom/Kconfig b/drivers/char/broadcom/Kconfig new file mode 100644 index 0000000000000000000000000000000000000000..fc1315209dab9fbb1436ef1a6fafdc25917cf45a --- /dev/null +++ b/drivers/char/broadcom/Kconfig @@ -0,0 +1,18 @@ +# +# Broadcom char driver config +# + +menuconfig BRCM_CHAR_DRIVERS + bool "Broadcom Char Drivers" + help + Broadcom's char drivers + +if BRCM_CHAR_DRIVERS + +config BCM2708_VCMEM + bool "Videocore Memory" + default y + help + Helper for videocore memory access and total size allocation. + +endif diff --git a/drivers/char/broadcom/Makefile b/drivers/char/broadcom/Makefile new file mode 100644 index 0000000000000000000000000000000000000000..06c5c8ad00e75204ae1ec200f690a8cbccd1d91d --- /dev/null +++ b/drivers/char/broadcom/Makefile @@ -0,0 +1 @@ +obj-$(CONFIG_BCM2708_VCMEM) += vc_mem.o diff --git a/drivers/char/broadcom/vc_mem.c b/drivers/char/broadcom/vc_mem.c new file mode 100644 index 0000000000000000000000000000000000000000..be64f238ee0cc1e57f9401b0ee16c23e9fa238cc --- /dev/null +++ b/drivers/char/broadcom/vc_mem.c @@ -0,0 +1,422 @@ +/***************************************************************************** +* Copyright 2010 - 2011 Broadcom Corporation. All rights reserved. +* +* Unless you and Broadcom execute a separate written software license +* agreement governing use of this software, this software is licensed to you +* under the terms of the GNU General Public License version 2, available at +* http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). +* +* Notwithstanding the above, under no circumstances may you combine this +* software in any way with any other Broadcom software provided under a +* license other than the GPL, without Broadcom's express prior written +* consent. +*****************************************************************************/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define DRIVER_NAME "vc-mem" + +// Device (/dev) related variables +static dev_t vc_mem_devnum = 0; +static struct class *vc_mem_class = NULL; +static struct cdev vc_mem_cdev; +static int vc_mem_inited = 0; + +#ifdef CONFIG_DEBUG_FS +static struct dentry *vc_mem_debugfs_entry; +#endif + +/* + * Videocore memory addresses and size + * + * Drivers that wish to know the videocore memory addresses and sizes should + * use these variables instead of the MM_IO_BASE and MM_ADDR_IO defines in + * headers. This allows the other drivers to not be tied down to a a certain + * address/size at compile time. + * + * In the future, the goal is to have the videocore memory virtual address and + * size be calculated at boot time rather than at compile time. The decision of + * where the videocore memory resides and its size would be in the hands of the + * bootloader (and/or kernel). When that happens, the values of these variables + * would be calculated and assigned in the init function. + */ +// in the 2835 VC in mapped above ARM, but ARM has full access to VC space +unsigned long mm_vc_mem_phys_addr = 0x00000000; +unsigned int mm_vc_mem_size = 0; +unsigned int mm_vc_mem_base = 0; + +EXPORT_SYMBOL(mm_vc_mem_phys_addr); +EXPORT_SYMBOL(mm_vc_mem_size); +EXPORT_SYMBOL(mm_vc_mem_base); + +static uint phys_addr = 0; +static uint mem_size = 0; +static uint mem_base = 0; + + +/**************************************************************************** +* +* vc_mem_open +* +***************************************************************************/ + +static int +vc_mem_open(struct inode *inode, struct file *file) +{ + (void) inode; + (void) file; + + pr_debug("%s: called file = 0x%p\n", __func__, file); + + return 0; +} + +/**************************************************************************** +* +* vc_mem_release +* +***************************************************************************/ + +static int +vc_mem_release(struct inode *inode, struct file *file) +{ + (void) inode; + (void) file; + + pr_debug("%s: called file = 0x%p\n", __func__, file); + + return 0; +} + +/**************************************************************************** +* +* vc_mem_get_size +* +***************************************************************************/ + +static void +vc_mem_get_size(void) +{ +} + +/**************************************************************************** +* +* vc_mem_get_base +* +***************************************************************************/ + +static void +vc_mem_get_base(void) +{ +} + +/**************************************************************************** +* +* vc_mem_get_current_size +* +***************************************************************************/ + +int +vc_mem_get_current_size(void) +{ + return mm_vc_mem_size; +} + +EXPORT_SYMBOL_GPL(vc_mem_get_current_size); + +/**************************************************************************** +* +* vc_mem_ioctl +* +***************************************************************************/ + +static long +vc_mem_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + int rc = 0; + + (void) cmd; + (void) arg; + + pr_debug("%s: called file = 0x%p\n", __func__, file); + + switch (cmd) { + case VC_MEM_IOC_MEM_PHYS_ADDR: + { + pr_debug("%s: VC_MEM_IOC_MEM_PHYS_ADDR=0x%p\n", + __func__, (void *) mm_vc_mem_phys_addr); + + if (copy_to_user((void *) arg, &mm_vc_mem_phys_addr, + sizeof (mm_vc_mem_phys_addr)) != 0) { + rc = -EFAULT; + } + break; + } + case VC_MEM_IOC_MEM_SIZE: + { + // Get the videocore memory size first + vc_mem_get_size(); + + pr_debug("%s: VC_MEM_IOC_MEM_SIZE=%u\n", __func__, + mm_vc_mem_size); + + if (copy_to_user((void *) arg, &mm_vc_mem_size, + sizeof (mm_vc_mem_size)) != 0) { + rc = -EFAULT; + } + break; + } + case VC_MEM_IOC_MEM_BASE: + { + // Get the videocore memory base + vc_mem_get_base(); + + pr_debug("%s: VC_MEM_IOC_MEM_BASE=%u\n", __func__, + mm_vc_mem_base); + + if (copy_to_user((void *) arg, &mm_vc_mem_base, + sizeof (mm_vc_mem_base)) != 0) { + rc = -EFAULT; + } + break; + } + case VC_MEM_IOC_MEM_LOAD: + { + // Get the videocore memory base + vc_mem_get_base(); + + pr_debug("%s: VC_MEM_IOC_MEM_LOAD=%u\n", __func__, + mm_vc_mem_base); + + if (copy_to_user((void *) arg, &mm_vc_mem_base, + sizeof (mm_vc_mem_base)) != 0) { + rc = -EFAULT; + } + break; + } + default: + { + return -ENOTTY; + } + } + pr_debug("%s: file = 0x%p returning %d\n", __func__, file, rc); + + return rc; +} + +/**************************************************************************** +* +* vc_mem_mmap +* +***************************************************************************/ + +static int +vc_mem_mmap(struct file *filp, struct vm_area_struct *vma) +{ + int rc = 0; + unsigned long length = vma->vm_end - vma->vm_start; + unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; + + pr_debug("%s: vm_start = 0x%08lx vm_end = 0x%08lx vm_pgoff = 0x%08lx\n", + __func__, (long) vma->vm_start, (long) vma->vm_end, + (long) vma->vm_pgoff); + + if (offset + length > mm_vc_mem_size) { + pr_err("%s: length %ld is too big\n", __func__, length); + return -EINVAL; + } + // Do not cache the memory map + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + + rc = remap_pfn_range(vma, vma->vm_start, + (mm_vc_mem_phys_addr >> PAGE_SHIFT) + + vma->vm_pgoff, length, vma->vm_page_prot); + if (rc != 0) { + pr_err("%s: remap_pfn_range failed (rc=%d)\n", __func__, rc); + } + + return rc; +} + +/**************************************************************************** +* +* File Operations for the driver. +* +***************************************************************************/ + +static const struct file_operations vc_mem_fops = { + .owner = THIS_MODULE, + .open = vc_mem_open, + .release = vc_mem_release, + .unlocked_ioctl = vc_mem_ioctl, + .mmap = vc_mem_mmap, +}; + +#ifdef CONFIG_DEBUG_FS +static void vc_mem_debugfs_deinit(void) +{ + debugfs_remove_recursive(vc_mem_debugfs_entry); + vc_mem_debugfs_entry = NULL; +} + + +static int vc_mem_debugfs_init( + struct device *dev) +{ + vc_mem_debugfs_entry = debugfs_create_dir(DRIVER_NAME, NULL); + if (!vc_mem_debugfs_entry) { + dev_warn(dev, "could not create debugfs entry\n"); + return -EFAULT; + } + + if (!debugfs_create_x32("vc_mem_phys_addr", + 0444, + vc_mem_debugfs_entry, + (u32 *)&mm_vc_mem_phys_addr)) { + dev_warn(dev, "%s:could not create vc_mem_phys entry\n", + __func__); + goto fail; + } + + if (!debugfs_create_x32("vc_mem_size", + 0444, + vc_mem_debugfs_entry, + (u32 *)&mm_vc_mem_size)) { + dev_warn(dev, "%s:could not create vc_mem_size entry\n", + __func__); + goto fail; + } + + if (!debugfs_create_x32("vc_mem_base", + 0444, + vc_mem_debugfs_entry, + (u32 *)&mm_vc_mem_base)) { + dev_warn(dev, "%s:could not create vc_mem_base entry\n", + __func__); + goto fail; + } + + return 0; + +fail: + vc_mem_debugfs_deinit(); + return -EFAULT; +} + +#endif /* CONFIG_DEBUG_FS */ + + +/**************************************************************************** +* +* vc_mem_init +* +***************************************************************************/ + +static int __init +vc_mem_init(void) +{ + int rc = -EFAULT; + struct device *dev; + + pr_debug("%s: called\n", __func__); + + mm_vc_mem_phys_addr = phys_addr; + mm_vc_mem_size = mem_size; + mm_vc_mem_base = mem_base; + + vc_mem_get_size(); + + pr_info("vc-mem: phys_addr:0x%08lx mem_base=0x%08x mem_size:0x%08x(%u MiB)\n", + mm_vc_mem_phys_addr, mm_vc_mem_base, mm_vc_mem_size, mm_vc_mem_size / (1024 * 1024)); + + if ((rc = alloc_chrdev_region(&vc_mem_devnum, 0, 1, DRIVER_NAME)) < 0) { + pr_err("%s: alloc_chrdev_region failed (rc=%d)\n", + __func__, rc); + goto out_err; + } + + cdev_init(&vc_mem_cdev, &vc_mem_fops); + if ((rc = cdev_add(&vc_mem_cdev, vc_mem_devnum, 1)) != 0) { + pr_err("%s: cdev_add failed (rc=%d)\n", __func__, rc); + goto out_unregister; + } + + vc_mem_class = class_create(THIS_MODULE, DRIVER_NAME); + if (IS_ERR(vc_mem_class)) { + rc = PTR_ERR(vc_mem_class); + pr_err("%s: class_create failed (rc=%d)\n", __func__, rc); + goto out_cdev_del; + } + + dev = device_create(vc_mem_class, NULL, vc_mem_devnum, NULL, + DRIVER_NAME); + if (IS_ERR(dev)) { + rc = PTR_ERR(dev); + pr_err("%s: device_create failed (rc=%d)\n", __func__, rc); + goto out_class_destroy; + } + +#ifdef CONFIG_DEBUG_FS + /* don't fail if the debug entries cannot be created */ + vc_mem_debugfs_init(dev); +#endif + + vc_mem_inited = 1; + return 0; + + device_destroy(vc_mem_class, vc_mem_devnum); + + out_class_destroy: + class_destroy(vc_mem_class); + vc_mem_class = NULL; + + out_cdev_del: + cdev_del(&vc_mem_cdev); + + out_unregister: + unregister_chrdev_region(vc_mem_devnum, 1); + + out_err: + return -1; +} + +/**************************************************************************** +* +* vc_mem_exit +* +***************************************************************************/ + +static void __exit +vc_mem_exit(void) +{ + pr_debug("%s: called\n", __func__); + + if (vc_mem_inited) { +#if CONFIG_DEBUG_FS + vc_mem_debugfs_deinit(); +#endif + device_destroy(vc_mem_class, vc_mem_devnum); + class_destroy(vc_mem_class); + cdev_del(&vc_mem_cdev); + unregister_chrdev_region(vc_mem_devnum, 1); + } +} + +module_init(vc_mem_init); +module_exit(vc_mem_exit); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Broadcom Corporation"); + +module_param(phys_addr, uint, 0644); +module_param(mem_size, uint, 0644); +module_param(mem_base, uint, 0644); diff --git a/include/linux/broadcom/vc_mem.h b/include/linux/broadcom/vc_mem.h new file mode 100644 index 0000000000000000000000000000000000000000..20a475377eb3078ea1ecaef2b24efc35a58411b4 --- /dev/null +++ b/include/linux/broadcom/vc_mem.h @@ -0,0 +1,35 @@ +/***************************************************************************** +* Copyright 2010 - 2011 Broadcom Corporation. All rights reserved. +* +* Unless you and Broadcom execute a separate written software license +* agreement governing use of this software, this software is licensed to you +* under the terms of the GNU General Public License version 2, available at +* http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). +* +* Notwithstanding the above, under no circumstances may you combine this +* software in any way with any other Broadcom software provided under a +* license other than the GPL, without Broadcom's express prior written +* consent. +*****************************************************************************/ + +#ifndef _VC_MEM_H +#define _VC_MEM_H + +#include + +#define VC_MEM_IOC_MAGIC 'v' + +#define VC_MEM_IOC_MEM_PHYS_ADDR _IOR( VC_MEM_IOC_MAGIC, 0, unsigned long ) +#define VC_MEM_IOC_MEM_SIZE _IOR( VC_MEM_IOC_MAGIC, 1, unsigned int ) +#define VC_MEM_IOC_MEM_BASE _IOR( VC_MEM_IOC_MAGIC, 2, unsigned int ) +#define VC_MEM_IOC_MEM_LOAD _IOR( VC_MEM_IOC_MAGIC, 3, unsigned int ) + +#if defined( __KERNEL__ ) +#define VC_MEM_TO_ARM_ADDR_MASK 0x3FFFFFFF + +extern unsigned long mm_vc_mem_phys_addr; +extern unsigned int mm_vc_mem_size; +extern int vc_mem_get_current_size( void ); +#endif + +#endif /* _VC_MEM_H */ From 6f1fd408d70ead65d08c7dec9652c609cffa36c1 Mon Sep 17 00:00:00 2001 From: Tim Gover Date: Tue, 22 Jul 2014 15:41:04 +0100 Subject: [PATCH 044/165] vcsm: VideoCore shared memory service for BCM2835 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add experimental support for the VideoCore shared memory service. This allows user processes to allocate memory from VideoCore's GPU relocatable heap and mmap the buffers. Additionally, the memory handles can passed to other VideoCore services such as MMAL, OpenMax and DispmanX TODO * This driver was originally released for BCM28155 which has a different cache architecture to BCM2835. Consequently, in this release only uncached mappings are supported. However, there's no fundamental reason which cached mappings cannot be support or BCM2835 * More refactoring is required to remove the typedefs. * Re-enable the some of the commented out debug-fs statistics which were disabled when migrating code from proc-fs. * There's a lot of code to support sharing of VCSM in order to support Android. This could probably done more cleanly or perhaps just removed. Signed-off-by: Tim Gover config: Disable VC_SM for now to fix hang with cutdown kernel vcsm: Use boolean as it cannot be built as module On building the bcm_vc_sm as a module we get the following error: v7_dma_flush_range and do_munmap are undefined in vc-sm.ko. Fix by making it not an option to build as module vcsm: Add ioctl for custom cache flushing vc-sm: Move headers out of arch directory Signed-off-by: Noralf Trønnes --- drivers/char/Kconfig | 2 + drivers/char/Makefile | 1 + drivers/char/broadcom/Kconfig | 9 + drivers/char/broadcom/Makefile | 1 + drivers/char/broadcom/vc_sm/Makefile | 9 + drivers/char/broadcom/vc_sm/vc_sm_defs.h | 181 ++ drivers/char/broadcom/vc_sm/vc_sm_knl.h | 55 + drivers/char/broadcom/vc_sm/vc_vchi_sm.c | 499 +++++ drivers/char/broadcom/vc_sm/vc_vchi_sm.h | 82 + drivers/char/broadcom/vc_sm/vmcs_sm.c | 3213 ++++++++++++++++++++++++++++++ include/linux/broadcom/vmcs_sm_ioctl.h | 248 +++ 11 files changed, 4300 insertions(+) create mode 100644 drivers/char/broadcom/vc_sm/Makefile create mode 100644 drivers/char/broadcom/vc_sm/vc_sm_defs.h create mode 100644 drivers/char/broadcom/vc_sm/vc_sm_knl.h create mode 100644 drivers/char/broadcom/vc_sm/vc_vchi_sm.c create mode 100644 drivers/char/broadcom/vc_sm/vc_vchi_sm.h create mode 100644 drivers/char/broadcom/vc_sm/vmcs_sm.c create mode 100644 include/linux/broadcom/vmcs_sm_ioctl.h diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index 31adbebf812edb23bdd203192785c085155248da..ce14b380bf447bfa92825a526894ac55d02eba2b 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -4,6 +4,8 @@ menu "Character devices" +source "drivers/char/broadcom/Kconfig" + source "drivers/tty/Kconfig" config DEVMEM diff --git a/drivers/char/Makefile b/drivers/char/Makefile index 6e6c244a66a02c4efd57229b0f31d331377bbc55..67c40b8f2ff25f423cb74b64de9afa6f32479aed 100644 --- a/drivers/char/Makefile +++ b/drivers/char/Makefile @@ -60,3 +60,4 @@ js-rtc-y = rtc.o obj-$(CONFIG_TILE_SROM) += tile-srom.o obj-$(CONFIG_XILLYBUS) += xillybus/ obj-$(CONFIG_POWERNV_OP_PANEL) += powernv-op-panel.o +obj-$(CONFIG_BRCM_CHAR_DRIVERS) += broadcom/ diff --git a/drivers/char/broadcom/Kconfig b/drivers/char/broadcom/Kconfig index fc1315209dab9fbb1436ef1a6fafdc25917cf45a..09a43da7bcf85c3506c1b4f1b06369c3b6c2bbe6 100644 --- a/drivers/char/broadcom/Kconfig +++ b/drivers/char/broadcom/Kconfig @@ -16,3 +16,12 @@ config BCM2708_VCMEM Helper for videocore memory access and total size allocation. endif + +config BCM_VC_SM + bool "VMCS Shared Memory" + depends on BCM2835_VCHIQ + select BCM2708_VCMEM + default n + help + Support for the VC shared memory on the Broadcom reference + design. Uses the VCHIQ stack. diff --git a/drivers/char/broadcom/Makefile b/drivers/char/broadcom/Makefile index 06c5c8ad00e75204ae1ec200f690a8cbccd1d91d..419af4180deb058ce8d91b606af821d4d3ebda4c 100644 --- a/drivers/char/broadcom/Makefile +++ b/drivers/char/broadcom/Makefile @@ -1 +1,2 @@ obj-$(CONFIG_BCM2708_VCMEM) += vc_mem.o +obj-$(CONFIG_BCM_VC_SM) += vc_sm/ diff --git a/drivers/char/broadcom/vc_sm/Makefile b/drivers/char/broadcom/vc_sm/Makefile new file mode 100644 index 0000000000000000000000000000000000000000..19ce263bc273dcdb24ea2b4431e4cafcf4ca4a2b --- /dev/null +++ b/drivers/char/broadcom/vc_sm/Makefile @@ -0,0 +1,9 @@ +ccflags-$(CONFIG_BCM_VC_SM) += -Werror -Wall -Wstrict-prototypes -Wno-trigraphs -O2 +ccflags-$(CONFIG_BCM_VC_SM) += -I"drivers/staging/vc04_services" -I"drivers/staging/vc04_services/interface/vchi" -I"drivers/staging/vc04_services/interface/vchiq_arm" -I"$(srctree)/fs/" +ccflags-$(CONFIG_BCM_VC_SM) += -DOS_ASSERT_FAILURE -D__STDC_VERSION=199901L -D__STDC_VERSION__=199901L -D__VCCOREVER__=0 -D__KERNEL__ -D__linux__ + +obj-$(CONFIG_BCM_VC_SM) := vc-sm.o + +vc-sm-objs := \ + vmcs_sm.o \ + vc_vchi_sm.o diff --git a/drivers/char/broadcom/vc_sm/vc_sm_defs.h b/drivers/char/broadcom/vc_sm/vc_sm_defs.h new file mode 100644 index 0000000000000000000000000000000000000000..c4d5ff718a5ba9071ef87fa4c6cf632486c4d36f --- /dev/null +++ b/drivers/char/broadcom/vc_sm/vc_sm_defs.h @@ -0,0 +1,181 @@ +/***************************************************************************** +* Copyright 2011 Broadcom Corporation. All rights reserved. +* +* Unless you and Broadcom execute a separate written software license +* agreement governing use of this software, this software is licensed to you +* under the terms of the GNU General Public License version 2, available at +* http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). +* +* Notwithstanding the above, under no circumstances may you combine this +* software in any way with any other Broadcom software provided under a +* license other than the GPL, without Broadcom's express prior written +* consent. +*****************************************************************************/ + +#ifndef __VC_SM_DEFS_H__INCLUDED__ +#define __VC_SM_DEFS_H__INCLUDED__ + +/* FourCC code used for VCHI connection */ +#define VC_SM_SERVER_NAME MAKE_FOURCC("SMEM") + +/* Maximum message length */ +#define VC_SM_MAX_MSG_LEN (sizeof(VC_SM_MSG_UNION_T) + \ + sizeof(VC_SM_MSG_HDR_T)) +#define VC_SM_MAX_RSP_LEN (sizeof(VC_SM_MSG_UNION_T)) + +/* Resource name maximum size */ +#define VC_SM_RESOURCE_NAME 32 + +/* All message types supported for HOST->VC direction */ +typedef enum { + /* Allocate shared memory block */ + VC_SM_MSG_TYPE_ALLOC, + /* Lock allocated shared memory block */ + VC_SM_MSG_TYPE_LOCK, + /* Unlock allocated shared memory block */ + VC_SM_MSG_TYPE_UNLOCK, + /* Unlock allocated shared memory block, do not answer command */ + VC_SM_MSG_TYPE_UNLOCK_NOANS, + /* Free shared memory block */ + VC_SM_MSG_TYPE_FREE, + /* Resize a shared memory block */ + VC_SM_MSG_TYPE_RESIZE, + /* Walk the allocated shared memory block(s) */ + VC_SM_MSG_TYPE_WALK_ALLOC, + + /* A previously applied action will need to be reverted */ + VC_SM_MSG_TYPE_ACTION_CLEAN, + VC_SM_MSG_TYPE_MAX +} VC_SM_MSG_TYPE; + +/* Type of memory to be allocated */ +typedef enum { + VC_SM_ALLOC_CACHED, + VC_SM_ALLOC_NON_CACHED, + +} VC_SM_ALLOC_TYPE_T; + +/* Message header for all messages in HOST->VC direction */ +typedef struct { + int32_t type; + uint32_t trans_id; + uint8_t body[0]; + +} VC_SM_MSG_HDR_T; + +/* Request to allocate memory (HOST->VC) */ +typedef struct { + /* type of memory to allocate */ + VC_SM_ALLOC_TYPE_T type; + /* byte amount of data to allocate per unit */ + uint32_t base_unit; + /* number of unit to allocate */ + uint32_t num_unit; + /* alignement to be applied on allocation */ + uint32_t alignement; + /* identity of who allocated this block */ + uint32_t allocator; + /* resource name (for easier tracking on vc side) */ + char name[VC_SM_RESOURCE_NAME]; + +} VC_SM_ALLOC_T; + +/* Result of a requested memory allocation (VC->HOST) */ +typedef struct { + /* Transaction identifier */ + uint32_t trans_id; + + /* Resource handle */ + uint32_t res_handle; + /* Pointer to resource buffer */ + void *res_mem; + /* Resource base size (bytes) */ + uint32_t res_base_size; + /* Resource number */ + uint32_t res_num; + +} VC_SM_ALLOC_RESULT_T; + +/* Request to free a previously allocated memory (HOST->VC) */ +typedef struct { + /* Resource handle (returned from alloc) */ + uint32_t res_handle; + /* Resource buffer (returned from alloc) */ + void *res_mem; + +} VC_SM_FREE_T; + +/* Request to lock a previously allocated memory (HOST->VC) */ +typedef struct { + /* Resource handle (returned from alloc) */ + uint32_t res_handle; + /* Resource buffer (returned from alloc) */ + void *res_mem; + +} VC_SM_LOCK_UNLOCK_T; + +/* Request to resize a previously allocated memory (HOST->VC) */ +typedef struct { + /* Resource handle (returned from alloc) */ + uint32_t res_handle; + /* Resource buffer (returned from alloc) */ + void *res_mem; + /* Resource *new* size requested (bytes) */ + uint32_t res_new_size; + +} VC_SM_RESIZE_T; + +/* Result of a requested memory lock (VC->HOST) */ +typedef struct { + /* Transaction identifier */ + uint32_t trans_id; + + /* Resource handle */ + uint32_t res_handle; + /* Pointer to resource buffer */ + void *res_mem; + /* Pointer to former resource buffer if the memory + * was reallocated */ + void *res_old_mem; + +} VC_SM_LOCK_RESULT_T; + +/* Generic result for a request (VC->HOST) */ +typedef struct { + /* Transaction identifier */ + uint32_t trans_id; + + int32_t success; + +} VC_SM_RESULT_T; + +/* Request to revert a previously applied action (HOST->VC) */ +typedef struct { + /* Action of interest */ + VC_SM_MSG_TYPE res_action; + /* Transaction identifier for the action of interest */ + uint32_t action_trans_id; + +} VC_SM_ACTION_CLEAN_T; + +/* Request to remove all data associated with a given allocator (HOST->VC) */ +typedef struct { + /* Allocator identifier */ + uint32_t allocator; + +} VC_SM_FREE_ALL_T; + +/* Union of ALL messages */ +typedef union { + VC_SM_ALLOC_T alloc; + VC_SM_ALLOC_RESULT_T alloc_result; + VC_SM_FREE_T free; + VC_SM_ACTION_CLEAN_T action_clean; + VC_SM_RESIZE_T resize; + VC_SM_LOCK_RESULT_T lock_result; + VC_SM_RESULT_T result; + VC_SM_FREE_ALL_T free_all; + +} VC_SM_MSG_UNION_T; + +#endif /* __VC_SM_DEFS_H__INCLUDED__ */ diff --git a/drivers/char/broadcom/vc_sm/vc_sm_knl.h b/drivers/char/broadcom/vc_sm/vc_sm_knl.h new file mode 100644 index 0000000000000000000000000000000000000000..965f9a209a025202fea8065d3947c36f4fa43d0a --- /dev/null +++ b/drivers/char/broadcom/vc_sm/vc_sm_knl.h @@ -0,0 +1,55 @@ +/***************************************************************************** +* Copyright 2011 Broadcom Corporation. All rights reserved. +* +* Unless you and Broadcom execute a separate written software license +* agreement governing use of this software, this software is licensed to you +* under the terms of the GNU General Public License version 2, available at +* http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). +* +* Notwithstanding the above, under no circumstances may you combine this +* software in any way with any other Broadcom software provided under a +* license other than the GPL, without Broadcom's express prior written +* consent. +*****************************************************************************/ + +#ifndef __VC_SM_KNL_H__INCLUDED__ +#define __VC_SM_KNL_H__INCLUDED__ + +#if !defined(__KERNEL__) +#error "This interface is for kernel use only..." +#endif + +/* Type of memory to be locked (ie mapped) */ +typedef enum { + VC_SM_LOCK_CACHED, + VC_SM_LOCK_NON_CACHED, + +} VC_SM_LOCK_CACHE_MODE_T; + +/* Allocate a shared memory handle and block. +*/ +int vc_sm_alloc(VC_SM_ALLOC_T *alloc, int *handle); + +/* Free a previously allocated shared memory handle and block. +*/ +int vc_sm_free(int handle); + +/* Lock a memory handle for use by kernel. +*/ +int vc_sm_lock(int handle, VC_SM_LOCK_CACHE_MODE_T mode, + long unsigned int *data); + +/* Unlock a memory handle in use by kernel. +*/ +int vc_sm_unlock(int handle, int flush, int no_vc_unlock); + +/* Get an internal resource handle mapped from the external one. +*/ +int vc_sm_int_handle(int handle); + +/* Map a shared memory region for use by kernel. +*/ +int vc_sm_map(int handle, unsigned int sm_addr, VC_SM_LOCK_CACHE_MODE_T mode, + long unsigned int *data); + +#endif /* __VC_SM_KNL_H__INCLUDED__ */ diff --git a/drivers/char/broadcom/vc_sm/vc_vchi_sm.c b/drivers/char/broadcom/vc_sm/vc_vchi_sm.c new file mode 100644 index 0000000000000000000000000000000000000000..76abd126c4617b6310fcf0ebd7ab1d5f73a18a70 --- /dev/null +++ b/drivers/char/broadcom/vc_sm/vc_vchi_sm.c @@ -0,0 +1,499 @@ +/***************************************************************************** +* Copyright 2011-2012 Broadcom Corporation. All rights reserved. +* +* Unless you and Broadcom execute a separate written software license +* agreement governing use of this software, this software is licensed to you +* under the terms of the GNU General Public License version 2, available at +* http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). +* +* Notwithstanding the above, under no circumstances may you combine this +* software in any way with any other Broadcom software provided under a +* license other than the GPL, without Broadcom's express prior written +* consent. +*****************************************************************************/ + +/* ---- Include Files ----------------------------------------------------- */ +#include +#include +#include +#include +#include +#include +#include + +#include "vc_vchi_sm.h" + +#define VC_SM_VER 1 +#define VC_SM_MIN_VER 0 + +/* ---- Private Constants and Types -------------------------------------- */ + +/* Command blocks come from a pool */ +#define SM_MAX_NUM_CMD_RSP_BLKS 32 + +struct sm_cmd_rsp_blk { + struct list_head head; /* To create lists */ + struct semaphore sema; /* To be signaled when the response is there */ + + uint16_t id; + uint16_t length; + + uint8_t msg[VC_SM_MAX_MSG_LEN]; + + uint32_t wait:1; + uint32_t sent:1; + uint32_t alloc:1; + +}; + +struct sm_instance { + uint32_t num_connections; + VCHI_SERVICE_HANDLE_T vchi_handle[VCHI_MAX_NUM_CONNECTIONS]; + struct task_struct *io_thread; + struct semaphore io_sema; + + uint32_t trans_id; + + struct mutex lock; + struct list_head cmd_list; + struct list_head rsp_list; + struct list_head dead_list; + + struct sm_cmd_rsp_blk free_blk[SM_MAX_NUM_CMD_RSP_BLKS]; + struct list_head free_list; + struct mutex free_lock; + struct semaphore free_sema; + +}; + +/* ---- Private Variables ------------------------------------------------ */ + +/* ---- Private Function Prototypes -------------------------------------- */ + +/* ---- Private Functions ------------------------------------------------ */ +static int +bcm2835_vchi_msg_queue(VCHI_SERVICE_HANDLE_T handle, + void *data, + unsigned int size) +{ + return vchi_queue_kernel_message(handle, + data, + size); +} + +static struct +sm_cmd_rsp_blk *vc_vchi_cmd_create(struct sm_instance *instance, + VC_SM_MSG_TYPE id, void *msg, + uint32_t size, int wait) +{ + struct sm_cmd_rsp_blk *blk; + VC_SM_MSG_HDR_T *hdr; + + if (down_interruptible(&instance->free_sema)) { + blk = kmalloc(sizeof(*blk), GFP_KERNEL); + if (!blk) + return NULL; + + blk->alloc = 1; + sema_init(&blk->sema, 0); + } else { + mutex_lock(&instance->free_lock); + blk = + list_first_entry(&instance->free_list, + struct sm_cmd_rsp_blk, head); + list_del(&blk->head); + mutex_unlock(&instance->free_lock); + } + + blk->sent = 0; + blk->wait = wait; + blk->length = sizeof(*hdr) + size; + + hdr = (VC_SM_MSG_HDR_T *) blk->msg; + hdr->type = id; + mutex_lock(&instance->lock); + hdr->trans_id = blk->id = ++instance->trans_id; + mutex_unlock(&instance->lock); + + if (size) + memcpy(hdr->body, msg, size); + + return blk; +} + +static void +vc_vchi_cmd_delete(struct sm_instance *instance, struct sm_cmd_rsp_blk *blk) +{ + if (blk->alloc) { + kfree(blk); + return; + } + + mutex_lock(&instance->free_lock); + list_add(&blk->head, &instance->free_list); + mutex_unlock(&instance->free_lock); + up(&instance->free_sema); +} + +static int vc_vchi_sm_videocore_io(void *arg) +{ + struct sm_instance *instance = arg; + struct sm_cmd_rsp_blk *cmd = NULL, *cmd_tmp; + VC_SM_RESULT_T *reply; + uint32_t reply_len; + int32_t status; + int svc_use = 1; + + while (1) { + if (svc_use) + vchi_service_release(instance->vchi_handle[0]); + svc_use = 0; + if (!down_interruptible(&instance->io_sema)) { + vchi_service_use(instance->vchi_handle[0]); + svc_use = 1; + + do { + /* + * Get new command and move it to response list + */ + mutex_lock(&instance->lock); + if (list_empty(&instance->cmd_list)) { + /* no more commands to process */ + mutex_unlock(&instance->lock); + break; + } + cmd = + list_first_entry(&instance->cmd_list, + struct sm_cmd_rsp_blk, + head); + list_move(&cmd->head, &instance->rsp_list); + cmd->sent = 1; + mutex_unlock(&instance->lock); + + /* Send the command */ + status = bcm2835_vchi_msg_queue( + instance->vchi_handle[0], + cmd->msg, cmd->length); + if (status) { + pr_err("%s: failed to queue message (%d)", + __func__, status); + } + + /* If no reply is needed then we're done */ + if (!cmd->wait) { + mutex_lock(&instance->lock); + list_del(&cmd->head); + mutex_unlock(&instance->lock); + vc_vchi_cmd_delete(instance, cmd); + continue; + } + + if (status) { + up(&cmd->sema); + continue; + } + + } while (1); + + while (!vchi_msg_peek + (instance->vchi_handle[0], (void **)&reply, + &reply_len, VCHI_FLAGS_NONE)) { + mutex_lock(&instance->lock); + list_for_each_entry(cmd, &instance->rsp_list, + head) { + if (cmd->id == reply->trans_id) + break; + } + mutex_unlock(&instance->lock); + + if (&cmd->head == &instance->rsp_list) { + pr_debug("%s: received response %u, throw away...", + __func__, reply->trans_id); + } else if (reply_len > sizeof(cmd->msg)) { + pr_err("%s: reply too big (%u) %u, throw away...", + __func__, reply_len, + reply->trans_id); + } else { + memcpy(cmd->msg, reply, reply_len); + up(&cmd->sema); + } + + vchi_msg_remove(instance->vchi_handle[0]); + } + + /* Go through the dead list and free them */ + mutex_lock(&instance->lock); + list_for_each_entry_safe(cmd, cmd_tmp, + &instance->dead_list, head) { + list_del(&cmd->head); + vc_vchi_cmd_delete(instance, cmd); + } + mutex_unlock(&instance->lock); + } + } + + return 0; +} + +static void vc_sm_vchi_callback(void *param, + const VCHI_CALLBACK_REASON_T reason, + void *msg_handle) +{ + struct sm_instance *instance = param; + + (void)msg_handle; + + switch (reason) { + case VCHI_CALLBACK_MSG_AVAILABLE: + up(&instance->io_sema); + break; + + case VCHI_CALLBACK_SERVICE_CLOSED: + pr_info("%s: service CLOSED!!", __func__); + default: + break; + } +} + +VC_VCHI_SM_HANDLE_T vc_vchi_sm_init(VCHI_INSTANCE_T vchi_instance, + VCHI_CONNECTION_T **vchi_connections, + uint32_t num_connections) +{ + uint32_t i; + struct sm_instance *instance; + int status; + + pr_debug("%s: start", __func__); + + if (num_connections > VCHI_MAX_NUM_CONNECTIONS) { + pr_err("%s: unsupported number of connections %u (max=%u)", + __func__, num_connections, VCHI_MAX_NUM_CONNECTIONS); + + goto err_null; + } + /* Allocate memory for this instance */ + instance = kzalloc(sizeof(*instance), GFP_KERNEL); + + /* Misc initialisations */ + mutex_init(&instance->lock); + sema_init(&instance->io_sema, 0); + INIT_LIST_HEAD(&instance->cmd_list); + INIT_LIST_HEAD(&instance->rsp_list); + INIT_LIST_HEAD(&instance->dead_list); + INIT_LIST_HEAD(&instance->free_list); + sema_init(&instance->free_sema, SM_MAX_NUM_CMD_RSP_BLKS); + mutex_init(&instance->free_lock); + for (i = 0; i < SM_MAX_NUM_CMD_RSP_BLKS; i++) { + sema_init(&instance->free_blk[i].sema, 0); + list_add(&instance->free_blk[i].head, &instance->free_list); + } + + /* Open the VCHI service connections */ + instance->num_connections = num_connections; + for (i = 0; i < num_connections; i++) { + SERVICE_CREATION_T params = { + VCHI_VERSION_EX(VC_SM_VER, VC_SM_MIN_VER), + VC_SM_SERVER_NAME, + vchi_connections[i], + 0, + 0, + vc_sm_vchi_callback, + instance, + 0, + 0, + 0, + }; + + status = vchi_service_open(vchi_instance, + ¶ms, &instance->vchi_handle[i]); + if (status) { + pr_err("%s: failed to open VCHI service (%d)", + __func__, status); + + goto err_close_services; + } + } + + /* Create the thread which takes care of all io to/from videoocore. */ + instance->io_thread = kthread_create(&vc_vchi_sm_videocore_io, + (void *)instance, "SMIO"); + if (instance->io_thread == NULL) { + pr_err("%s: failed to create SMIO thread", __func__); + + goto err_close_services; + } + set_user_nice(instance->io_thread, -10); + wake_up_process(instance->io_thread); + + pr_debug("%s: success - instance 0x%x", __func__, (unsigned)instance); + return instance; + +err_close_services: + for (i = 0; i < instance->num_connections; i++) { + if (instance->vchi_handle[i] != NULL) + vchi_service_close(instance->vchi_handle[i]); + } + kfree(instance); +err_null: + pr_debug("%s: FAILED", __func__); + return NULL; +} + +int vc_vchi_sm_stop(VC_VCHI_SM_HANDLE_T *handle) +{ + struct sm_instance *instance; + uint32_t i; + + if (handle == NULL) { + pr_err("%s: invalid pointer to handle %p", __func__, handle); + goto lock; + } + + if (*handle == NULL) { + pr_err("%s: invalid handle %p", __func__, *handle); + goto lock; + } + + instance = *handle; + + /* Close all VCHI service connections */ + for (i = 0; i < instance->num_connections; i++) { + int32_t success; + vchi_service_use(instance->vchi_handle[i]); + + success = vchi_service_close(instance->vchi_handle[i]); + } + + kfree(instance); + + *handle = NULL; + return 0; + +lock: + return -EINVAL; +} + +int vc_vchi_sm_send_msg(VC_VCHI_SM_HANDLE_T handle, + VC_SM_MSG_TYPE msg_id, + void *msg, uint32_t msg_size, + void *result, uint32_t result_size, + uint32_t *cur_trans_id, uint8_t wait_reply) +{ + int status = 0; + struct sm_instance *instance = handle; + struct sm_cmd_rsp_blk *cmd_blk; + + if (handle == NULL) { + pr_err("%s: invalid handle", __func__); + return -EINVAL; + } + if (msg == NULL) { + pr_err("%s: invalid msg pointer", __func__); + return -EINVAL; + } + + cmd_blk = + vc_vchi_cmd_create(instance, msg_id, msg, msg_size, wait_reply); + if (cmd_blk == NULL) { + pr_err("[%s]: failed to allocate global tracking resource", + __func__); + return -ENOMEM; + } + + if (cur_trans_id != NULL) + *cur_trans_id = cmd_blk->id; + + mutex_lock(&instance->lock); + list_add_tail(&cmd_blk->head, &instance->cmd_list); + mutex_unlock(&instance->lock); + up(&instance->io_sema); + + if (!wait_reply) + /* We're done */ + return 0; + + /* Wait for the response */ + if (down_interruptible(&cmd_blk->sema)) { + mutex_lock(&instance->lock); + if (!cmd_blk->sent) { + list_del(&cmd_blk->head); + mutex_unlock(&instance->lock); + vc_vchi_cmd_delete(instance, cmd_blk); + return -ENXIO; + } + mutex_unlock(&instance->lock); + + mutex_lock(&instance->lock); + list_move(&cmd_blk->head, &instance->dead_list); + mutex_unlock(&instance->lock); + up(&instance->io_sema); + return -EINTR; /* We're done */ + } + + if (result && result_size) { + memcpy(result, cmd_blk->msg, result_size); + } else { + VC_SM_RESULT_T *res = (VC_SM_RESULT_T *) cmd_blk->msg; + status = (res->success == 0) ? 0 : -ENXIO; + } + + mutex_lock(&instance->lock); + list_del(&cmd_blk->head); + mutex_unlock(&instance->lock); + vc_vchi_cmd_delete(instance, cmd_blk); + return status; +} + +int vc_vchi_sm_alloc(VC_VCHI_SM_HANDLE_T handle, VC_SM_ALLOC_T *msg, + VC_SM_ALLOC_RESULT_T *result, uint32_t *cur_trans_id) +{ + return vc_vchi_sm_send_msg(handle, VC_SM_MSG_TYPE_ALLOC, + msg, sizeof(*msg), result, sizeof(*result), + cur_trans_id, 1); +} + +int vc_vchi_sm_free(VC_VCHI_SM_HANDLE_T handle, + VC_SM_FREE_T *msg, uint32_t *cur_trans_id) +{ + return vc_vchi_sm_send_msg(handle, VC_SM_MSG_TYPE_FREE, + msg, sizeof(*msg), 0, 0, cur_trans_id, 0); +} + +int vc_vchi_sm_lock(VC_VCHI_SM_HANDLE_T handle, + VC_SM_LOCK_UNLOCK_T *msg, + VC_SM_LOCK_RESULT_T *result, uint32_t *cur_trans_id) +{ + return vc_vchi_sm_send_msg(handle, VC_SM_MSG_TYPE_LOCK, + msg, sizeof(*msg), result, sizeof(*result), + cur_trans_id, 1); +} + +int vc_vchi_sm_unlock(VC_VCHI_SM_HANDLE_T handle, + VC_SM_LOCK_UNLOCK_T *msg, + uint32_t *cur_trans_id, uint8_t wait_reply) +{ + return vc_vchi_sm_send_msg(handle, wait_reply ? + VC_SM_MSG_TYPE_UNLOCK : + VC_SM_MSG_TYPE_UNLOCK_NOANS, msg, + sizeof(*msg), 0, 0, cur_trans_id, + wait_reply); +} + +int vc_vchi_sm_resize(VC_VCHI_SM_HANDLE_T handle, VC_SM_RESIZE_T *msg, + uint32_t *cur_trans_id) +{ + return vc_vchi_sm_send_msg(handle, VC_SM_MSG_TYPE_RESIZE, + msg, sizeof(*msg), 0, 0, cur_trans_id, 1); +} + +int vc_vchi_sm_walk_alloc(VC_VCHI_SM_HANDLE_T handle) +{ + return vc_vchi_sm_send_msg(handle, VC_SM_MSG_TYPE_WALK_ALLOC, + 0, 0, 0, 0, 0, 0); +} + +int vc_vchi_sm_clean_up(VC_VCHI_SM_HANDLE_T handle, VC_SM_ACTION_CLEAN_T *msg) +{ + return vc_vchi_sm_send_msg(handle, VC_SM_MSG_TYPE_ACTION_CLEAN, + msg, sizeof(*msg), 0, 0, 0, 0); +} diff --git a/drivers/char/broadcom/vc_sm/vc_vchi_sm.h b/drivers/char/broadcom/vc_sm/vc_vchi_sm.h new file mode 100644 index 0000000000000000000000000000000000000000..5e279f5a95fac7227cea15941bf0570ddc2b0886 --- /dev/null +++ b/drivers/char/broadcom/vc_sm/vc_vchi_sm.h @@ -0,0 +1,82 @@ +/***************************************************************************** +* Copyright 2011 Broadcom Corporation. All rights reserved. +* +* Unless you and Broadcom execute a separate written software license +* agreement governing use of this software, this software is licensed to you +* under the terms of the GNU General Public License version 2, available at +* http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). +* +* Notwithstanding the above, under no circumstances may you combine this +* software in any way with any other Broadcom software provided under a +* license other than the GPL, without Broadcom's express prior written +* consent. +*****************************************************************************/ + +#ifndef __VC_VCHI_SM_H__INCLUDED__ +#define __VC_VCHI_SM_H__INCLUDED__ + +#include "interface/vchi/vchi.h" + +#include "vc_sm_defs.h" + +/* Forward declare. +*/ +typedef struct sm_instance *VC_VCHI_SM_HANDLE_T; + +/* Initialize the shared memory service, opens up vchi connection to talk to it. +*/ +VC_VCHI_SM_HANDLE_T vc_vchi_sm_init(VCHI_INSTANCE_T vchi_instance, + VCHI_CONNECTION_T **vchi_connections, + uint32_t num_connections); + +/* Terminates the shared memory service. +*/ +int vc_vchi_sm_stop(VC_VCHI_SM_HANDLE_T *handle); + +/* Ask the shared memory service to allocate some memory on videocre and +** return the result of this allocation (which upon success will be a pointer +** to some memory in videocore space). +*/ +int vc_vchi_sm_alloc(VC_VCHI_SM_HANDLE_T handle, + VC_SM_ALLOC_T *alloc, + VC_SM_ALLOC_RESULT_T *alloc_result, uint32_t *trans_id); + +/* Ask the shared memory service to free up some memory that was previously +** allocated by the vc_vchi_sm_alloc function call. +*/ +int vc_vchi_sm_free(VC_VCHI_SM_HANDLE_T handle, + VC_SM_FREE_T *free, uint32_t *trans_id); + +/* Ask the shared memory service to lock up some memory that was previously +** allocated by the vc_vchi_sm_alloc function call. +*/ +int vc_vchi_sm_lock(VC_VCHI_SM_HANDLE_T handle, + VC_SM_LOCK_UNLOCK_T *lock_unlock, + VC_SM_LOCK_RESULT_T *lock_result, uint32_t *trans_id); + +/* Ask the shared memory service to unlock some memory that was previously +** allocated by the vc_vchi_sm_alloc function call. +*/ +int vc_vchi_sm_unlock(VC_VCHI_SM_HANDLE_T handle, + VC_SM_LOCK_UNLOCK_T *lock_unlock, + uint32_t *trans_id, uint8_t wait_reply); + +/* Ask the shared memory service to resize some memory that was previously +** allocated by the vc_vchi_sm_alloc function call. +*/ +int vc_vchi_sm_resize(VC_VCHI_SM_HANDLE_T handle, + VC_SM_RESIZE_T *resize, uint32_t *trans_id); + +/* Walk the allocated resources on the videocore side, the allocation will +** show up in the log. This is purely for debug/information and takes no +** specific actions. +*/ +int vc_vchi_sm_walk_alloc(VC_VCHI_SM_HANDLE_T handle); + +/* Clean up following a previously interrupted action which left the system +** in a bad state of some sort. +*/ +int vc_vchi_sm_clean_up(VC_VCHI_SM_HANDLE_T handle, + VC_SM_ACTION_CLEAN_T *action_clean); + +#endif /* __VC_VCHI_SM_H__INCLUDED__ */ diff --git a/drivers/char/broadcom/vc_sm/vmcs_sm.c b/drivers/char/broadcom/vc_sm/vmcs_sm.c new file mode 100644 index 0000000000000000000000000000000000000000..fd71d9fbb400d71bb8cfb8672080e7c3053e3ae9 --- /dev/null +++ b/drivers/char/broadcom/vc_sm/vmcs_sm.c @@ -0,0 +1,3213 @@ +/***************************************************************************** +* Copyright 2011-2012 Broadcom Corporation. All rights reserved. +* +* Unless you and Broadcom execute a separate written software license +* agreement governing use of this software, this software is licensed to you +* under the terms of the GNU General Public License version 2, available at +* http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). +* +* Notwithstanding the above, under no circumstances may you combine this +* software in any way with any other Broadcom software provided under a +* license other than the GPL, without Broadcom's express prior written +* consent. +*****************************************************************************/ + +/* ---- Include Files ----------------------------------------------------- */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "vchiq_connected.h" +#include "vc_vchi_sm.h" + +#include +#include "vc_sm_knl.h" + +/* ---- Private Constants and Types --------------------------------------- */ + +#define DEVICE_NAME "vcsm" +#define DEVICE_MINOR 0 + +#define VC_SM_DIR_ROOT_NAME "vc-smem" +#define VC_SM_DIR_ALLOC_NAME "alloc" +#define VC_SM_STATE "state" +#define VC_SM_STATS "statistics" +#define VC_SM_RESOURCES "resources" +#define VC_SM_DEBUG "debug" +#define VC_SM_WRITE_BUF_SIZE 128 + +/* Statistics tracked per resource and globally. +*/ +enum SM_STATS_T { + /* Attempt. */ + ALLOC, + FREE, + LOCK, + UNLOCK, + MAP, + FLUSH, + INVALID, + + END_ATTEMPT, + + /* Failure. */ + ALLOC_FAIL, + FREE_FAIL, + LOCK_FAIL, + UNLOCK_FAIL, + MAP_FAIL, + FLUSH_FAIL, + INVALID_FAIL, + + END_ALL, + +}; + +static const char *const sm_stats_human_read[] = { + "Alloc", + "Free", + "Lock", + "Unlock", + "Map", + "Cache Flush", + "Cache Invalidate", +}; + +typedef int (*VC_SM_SHOW) (struct seq_file *s, void *v); +struct SM_PDE_T { + VC_SM_SHOW show; /* Debug fs function hookup. */ + struct dentry *dir_entry; /* Debug fs directory entry. */ + void *priv_data; /* Private data */ + +}; + +/* Single resource allocation tracked for all devices. +*/ +struct sm_mmap { + struct list_head map_list; /* Linked list of maps. */ + + struct SM_RESOURCE_T *resource; /* Pointer to the resource. */ + + pid_t res_pid; /* PID owning that resource. */ + unsigned int res_vc_hdl; /* Resource handle (videocore). */ + unsigned int res_usr_hdl; /* Resource handle (user). */ + + long unsigned int res_addr; /* Mapped virtual address. */ + struct vm_area_struct *vma; /* VM area for this mapping. */ + unsigned int ref_count; /* Reference count to this vma. */ + + /* Used to link maps associated with a resource. */ + struct list_head resource_map_list; +}; + +/* Single resource allocation tracked for each opened device. +*/ +struct SM_RESOURCE_T { + struct list_head resource_list; /* List of resources. */ + struct list_head global_resource_list; /* Global list of resources. */ + + pid_t pid; /* PID owning that resource. */ + uint32_t res_guid; /* Unique identifier. */ + uint32_t lock_count; /* Lock count for this resource. */ + uint32_t ref_count; /* Ref count for this resource. */ + + uint32_t res_handle; /* Resource allocation handle. */ + void *res_base_mem; /* Resource base memory address. */ + uint32_t res_size; /* Resource size allocated. */ + enum vmcs_sm_cache_e res_cached; /* Resource cache type. */ + struct SM_RESOURCE_T *res_shared; /* Shared resource */ + + enum SM_STATS_T res_stats[END_ALL]; /* Resource statistics. */ + + uint8_t map_count; /* Counter of mappings for this resource. */ + struct list_head map_list; /* Maps associated with a resource. */ + + struct SM_PRIV_DATA_T *private; +}; + +/* Private file data associated with each opened device. +*/ +struct SM_PRIV_DATA_T { + struct list_head resource_list; /* List of resources. */ + + pid_t pid; /* PID of creator. */ + + struct dentry *dir_pid; /* Debug fs entries root. */ + struct SM_PDE_T dir_stats; /* Debug fs entries statistics sub-tree. */ + struct SM_PDE_T dir_res; /* Debug fs resource sub-tree. */ + + int restart_sys; /* Tracks restart on interrupt. */ + VC_SM_MSG_TYPE int_action; /* Interrupted action. */ + uint32_t int_trans_id; /* Interrupted transaction. */ + +}; + +/* Global state information. +*/ +struct SM_STATE_T { + VC_VCHI_SM_HANDLE_T sm_handle; /* Handle for videocore service. */ + struct dentry *dir_root; /* Debug fs entries root. */ + struct dentry *dir_alloc; /* Debug fs entries allocations. */ + struct SM_PDE_T dir_stats; /* Debug fs entries statistics sub-tree. */ + struct SM_PDE_T dir_state; /* Debug fs entries state sub-tree. */ + struct dentry *debug; /* Debug fs entries debug. */ + + struct mutex map_lock; /* Global map lock. */ + struct list_head map_list; /* List of maps. */ + struct list_head resource_list; /* List of resources. */ + + enum SM_STATS_T deceased[END_ALL]; /* Natural termination stats. */ + enum SM_STATS_T terminated[END_ALL]; /* Forced termination stats. */ + uint32_t res_deceased_cnt; /* Natural termination counter. */ + uint32_t res_terminated_cnt; /* Forced termination counter. */ + + struct cdev sm_cdev; /* Device. */ + dev_t sm_devid; /* Device identifier. */ + struct class *sm_class; /* Class. */ + struct device *sm_dev; /* Device. */ + + struct SM_PRIV_DATA_T *data_knl; /* Kernel internal data tracking. */ + + struct mutex lock; /* Global lock. */ + uint32_t guid; /* GUID (next) tracker. */ + +}; + +/* ---- Private Variables ----------------------------------------------- */ + +static struct SM_STATE_T *sm_state; +static int sm_inited; + +#if 0 +static const char *const sm_cache_map_vector[] = { + "(null)", + "host", + "videocore", + "host+videocore", +}; +#endif + +/* ---- Private Function Prototypes -------------------------------------- */ + +/* ---- Private Functions ------------------------------------------------ */ + +static inline unsigned vcaddr_to_pfn(unsigned long vc_addr) +{ + unsigned long pfn = vc_addr & 0x3FFFFFFF; + pfn += mm_vc_mem_phys_addr; + pfn >>= PAGE_SHIFT; + return pfn; +} + +/* Carries over to the state statistics the statistics once owned by a deceased +** resource. +*/ +static void vc_sm_resource_deceased(struct SM_RESOURCE_T *p_res, int terminated) +{ + if (sm_state != NULL) { + if (p_res != NULL) { + int ix; + + if (terminated) + sm_state->res_terminated_cnt++; + else + sm_state->res_deceased_cnt++; + + for (ix = 0; ix < END_ALL; ix++) { + if (terminated) + sm_state->terminated[ix] += + p_res->res_stats[ix]; + else + sm_state->deceased[ix] += + p_res->res_stats[ix]; + } + } + } +} + +/* Fetch a videocore handle corresponding to a mapping of the pid+address +** returns 0 (ie NULL) if no such handle exists in the global map. +*/ +static unsigned int vmcs_sm_vc_handle_from_pid_and_address(unsigned int pid, + unsigned int addr) +{ + struct sm_mmap *map = NULL; + unsigned int handle = 0; + + if (!sm_state || addr == 0) + goto out; + + mutex_lock(&(sm_state->map_lock)); + + /* Lookup the resource. + */ + if (!list_empty(&sm_state->map_list)) { + list_for_each_entry(map, &sm_state->map_list, map_list) { + if (map->res_pid != pid || map->res_addr != addr) + continue; + + pr_debug("[%s]: global map %p (pid %u, addr %lx) -> vc-hdl %x (usr-hdl %x)\n", + __func__, map, map->res_pid, map->res_addr, + map->res_vc_hdl, map->res_usr_hdl); + + handle = map->res_vc_hdl; + break; + } + } + + mutex_unlock(&(sm_state->map_lock)); + +out: + /* Use a debug log here as it may be a valid situation that we query + ** for something that is not mapped, we do not want a kernel log each + ** time around. + ** + ** There are other error log that would pop up accordingly if someone + ** subsequently tries to use something invalid after being told not to + ** use it... + */ + if (handle == 0) { + pr_debug("[%s]: not a valid map (pid %u, addr %x)\n", + __func__, pid, addr); + } + + return handle; +} + +/* Fetch a user handle corresponding to a mapping of the pid+address +** returns 0 (ie NULL) if no such handle exists in the global map. +*/ +static unsigned int vmcs_sm_usr_handle_from_pid_and_address(unsigned int pid, + unsigned int addr) +{ + struct sm_mmap *map = NULL; + unsigned int handle = 0; + + if (!sm_state || addr == 0) + goto out; + + mutex_lock(&(sm_state->map_lock)); + + /* Lookup the resource. + */ + if (!list_empty(&sm_state->map_list)) { + list_for_each_entry(map, &sm_state->map_list, map_list) { + if (map->res_pid != pid || map->res_addr != addr) + continue; + + pr_debug("[%s]: global map %p (pid %u, addr %lx) -> usr-hdl %x (vc-hdl %x)\n", + __func__, map, map->res_pid, map->res_addr, + map->res_usr_hdl, map->res_vc_hdl); + + handle = map->res_usr_hdl; + break; + } + } + + mutex_unlock(&(sm_state->map_lock)); + +out: + /* Use a debug log here as it may be a valid situation that we query + * for something that is not mapped yet. + * + * There are other error log that would pop up accordingly if someone + * subsequently tries to use something invalid after being told not to + * use it... + */ + if (handle == 0) + pr_debug("[%s]: not a valid map (pid %u, addr %x)\n", + __func__, pid, addr); + + return handle; +} + +#if defined(DO_NOT_USE) +/* Fetch an address corresponding to a mapping of the pid+handle +** returns 0 (ie NULL) if no such address exists in the global map. +*/ +static unsigned int vmcs_sm_usr_address_from_pid_and_vc_handle(unsigned int pid, + unsigned int hdl) +{ + struct sm_mmap *map = NULL; + unsigned int addr = 0; + + if (sm_state == NULL || hdl == 0) + goto out; + + mutex_lock(&(sm_state->map_lock)); + + /* Lookup the resource. + */ + if (!list_empty(&sm_state->map_list)) { + list_for_each_entry(map, &sm_state->map_list, map_list) { + if (map->res_pid != pid || map->res_vc_hdl != hdl) + continue; + + pr_debug("[%s]: global map %p (pid %u, vc-hdl %x, usr-hdl %x) -> addr %lx\n", + __func__, map, map->res_pid, map->res_vc_hdl, + map->res_usr_hdl, map->res_addr); + + addr = map->res_addr; + break; + } + } + + mutex_unlock(&(sm_state->map_lock)); + +out: + /* Use a debug log here as it may be a valid situation that we query + ** for something that is not mapped, we do not want a kernel log each + ** time around. + ** + ** There are other error log that would pop up accordingly if someone + ** subsequently tries to use something invalid after being told not to + ** use it... + */ + if (addr == 0) + pr_debug("[%s]: not a valid map (pid %u, hdl %x)\n", + __func__, pid, hdl); + + return addr; +} +#endif + +/* Fetch an address corresponding to a mapping of the pid+handle +** returns 0 (ie NULL) if no such address exists in the global map. +*/ +static unsigned int vmcs_sm_usr_address_from_pid_and_usr_handle(unsigned int + pid, + unsigned int + hdl) +{ + struct sm_mmap *map = NULL; + unsigned int addr = 0; + + if (sm_state == NULL || hdl == 0) + goto out; + + mutex_lock(&(sm_state->map_lock)); + + /* Lookup the resource. + */ + if (!list_empty(&sm_state->map_list)) { + list_for_each_entry(map, &sm_state->map_list, map_list) { + if (map->res_pid != pid || map->res_usr_hdl != hdl) + continue; + + pr_debug("[%s]: global map %p (pid %u, vc-hdl %x, usr-hdl %x) -> addr %lx\n", + __func__, map, map->res_pid, map->res_vc_hdl, + map->res_usr_hdl, map->res_addr); + + addr = map->res_addr; + break; + } + } + + mutex_unlock(&(sm_state->map_lock)); + +out: + /* Use a debug log here as it may be a valid situation that we query + * for something that is not mapped, we do not want a kernel log each + * time around. + * + * There are other error log that would pop up accordingly if someone + * subsequently tries to use something invalid after being told not to + * use it... + */ + if (addr == 0) + pr_debug("[%s]: not a valid map (pid %u, hdl %x)\n", __func__, + pid, hdl); + + return addr; +} + +/* Adds a resource mapping to the global data list. +*/ +static void vmcs_sm_add_map(struct SM_STATE_T *state, + struct SM_RESOURCE_T *resource, struct sm_mmap *map) +{ + mutex_lock(&(state->map_lock)); + + /* Add to the global list of mappings + */ + list_add(&map->map_list, &state->map_list); + + /* Add to the list of mappings for this resource + */ + list_add(&map->resource_map_list, &resource->map_list); + resource->map_count++; + + mutex_unlock(&(state->map_lock)); + + pr_debug("[%s]: added map %p (pid %u, vc-hdl %x, usr-hdl %x, addr %lx)\n", + __func__, map, map->res_pid, map->res_vc_hdl, + map->res_usr_hdl, map->res_addr); +} + +/* Removes a resource mapping from the global data list. +*/ +static void vmcs_sm_remove_map(struct SM_STATE_T *state, + struct SM_RESOURCE_T *resource, + struct sm_mmap *map) +{ + mutex_lock(&(state->map_lock)); + + /* Remove from the global list of mappings + */ + list_del(&map->map_list); + + /* Remove from the list of mapping for this resource + */ + list_del(&map->resource_map_list); + if (resource->map_count > 0) + resource->map_count--; + + mutex_unlock(&(state->map_lock)); + + pr_debug("[%s]: removed map %p (pid %d, vc-hdl %x, usr-hdl %x, addr %lx)\n", + __func__, map, map->res_pid, map->res_vc_hdl, map->res_usr_hdl, + map->res_addr); + + kfree(map); +} + +/* Read callback for the global state proc entry. +*/ +static int vc_sm_global_state_show(struct seq_file *s, void *v) +{ + struct sm_mmap *map = NULL; + int map_count = 0; + + if (sm_state == NULL) + return 0; + + seq_printf(s, "\nVC-ServiceHandle 0x%x\n", + (unsigned int)sm_state->sm_handle); + + /* Log all applicable mapping(s). + */ + + mutex_lock(&(sm_state->map_lock)); + + if (!list_empty(&sm_state->map_list)) { + list_for_each_entry(map, &sm_state->map_list, map_list) { + map_count++; + + seq_printf(s, "\nMapping 0x%x\n", + (unsigned int)map); + seq_printf(s, " TGID %u\n", + map->res_pid); + seq_printf(s, " VC-HDL 0x%x\n", + map->res_vc_hdl); + seq_printf(s, " USR-HDL 0x%x\n", + map->res_usr_hdl); + seq_printf(s, " USR-ADDR 0x%lx\n", + map->res_addr); + } + } + + mutex_unlock(&(sm_state->map_lock)); + seq_printf(s, "\n\nTotal map count: %d\n\n", map_count); + + return 0; +} + +static int vc_sm_global_statistics_show(struct seq_file *s, void *v) +{ + int ix; + + /* Global state tracked statistics. + */ + if (sm_state != NULL) { + seq_puts(s, "\nDeceased Resources Statistics\n"); + + seq_printf(s, "\nNatural Cause (%u occurences)\n", + sm_state->res_deceased_cnt); + for (ix = 0; ix < END_ATTEMPT; ix++) { + if (sm_state->deceased[ix] > 0) { + seq_printf(s, " %u\t%s\n", + sm_state->deceased[ix], + sm_stats_human_read[ix]); + } + } + seq_puts(s, "\n"); + for (ix = 0; ix < END_ATTEMPT; ix++) { + if (sm_state->deceased[ix + END_ATTEMPT] > 0) { + seq_printf(s, " %u\tFAILED %s\n", + sm_state->deceased[ix + END_ATTEMPT], + sm_stats_human_read[ix]); + } + } + + seq_printf(s, "\nForcefull (%u occurences)\n", + sm_state->res_terminated_cnt); + for (ix = 0; ix < END_ATTEMPT; ix++) { + if (sm_state->terminated[ix] > 0) { + seq_printf(s, " %u\t%s\n", + sm_state->terminated[ix], + sm_stats_human_read[ix]); + } + } + seq_puts(s, "\n"); + for (ix = 0; ix < END_ATTEMPT; ix++) { + if (sm_state->terminated[ix + END_ATTEMPT] > 0) { + seq_printf(s, " %u\tFAILED %s\n", + sm_state->terminated[ix + + END_ATTEMPT], + sm_stats_human_read[ix]); + } + } + } + + return 0; +} + +#if 0 +/* Read callback for the statistics proc entry. +*/ +static int vc_sm_statistics_show(struct seq_file *s, void *v) +{ + int ix; + struct SM_PRIV_DATA_T *file_data; + struct SM_RESOURCE_T *resource; + int res_count = 0; + struct SM_PDE_T *p_pde; + + p_pde = (struct SM_PDE_T *)(s->private); + file_data = (struct SM_PRIV_DATA_T *)(p_pde->priv_data); + + if (file_data == NULL) + return 0; + + /* Per process statistics. + */ + + seq_printf(s, "\nStatistics for TGID %d\n", file_data->pid); + + mutex_lock(&(sm_state->map_lock)); + + if (!list_empty(&file_data->resource_list)) { + list_for_each_entry(resource, &file_data->resource_list, + resource_list) { + res_count++; + + seq_printf(s, "\nGUID: 0x%x\n\n", + resource->res_guid); + for (ix = 0; ix < END_ATTEMPT; ix++) { + if (resource->res_stats[ix] > 0) { + seq_printf(s, + " %u\t%s\n", + resource->res_stats[ix], + sm_stats_human_read[ix]); + } + } + seq_puts(s, "\n"); + for (ix = 0; ix < END_ATTEMPT; ix++) { + if (resource->res_stats[ix + END_ATTEMPT] > 0) { + seq_printf(s, + " %u\tFAILED %s\n", + resource->res_stats[ + ix + END_ATTEMPT], + sm_stats_human_read[ix]); + } + } + } + } + + mutex_unlock(&(sm_state->map_lock)); + + seq_printf(s, "\nResources Count %d\n", res_count); + + return 0; +} +#endif + +#if 0 +/* Read callback for the allocation proc entry. */ +static int vc_sm_alloc_show(struct seq_file *s, void *v) +{ + struct SM_PRIV_DATA_T *file_data; + struct SM_RESOURCE_T *resource; + int alloc_count = 0; + struct SM_PDE_T *p_pde; + + p_pde = (struct SM_PDE_T *)(s->private); + file_data = (struct SM_PRIV_DATA_T *)(p_pde->priv_data); + + if (!file_data) + return 0; + + /* Per process statistics. */ + seq_printf(s, "\nAllocation for TGID %d\n", file_data->pid); + + mutex_lock(&(sm_state->map_lock)); + + if (!list_empty(&file_data->resource_list)) { + list_for_each_entry(resource, &file_data->resource_list, + resource_list) { + alloc_count++; + + seq_printf(s, "\nGUID: 0x%x\n", + resource->res_guid); + seq_printf(s, "Lock Count: %u\n", + resource->lock_count); + seq_printf(s, "Mapped: %s\n", + (resource->map_count ? "yes" : "no")); + seq_printf(s, "VC-handle: 0x%x\n", + resource->res_handle); + seq_printf(s, "VC-address: 0x%p\n", + resource->res_base_mem); + seq_printf(s, "VC-size (bytes): %u\n", + resource->res_size); + seq_printf(s, "Cache: %s\n", + sm_cache_map_vector[resource->res_cached]); + } + } + + mutex_unlock(&(sm_state->map_lock)); + + seq_printf(s, "\n\nTotal allocation count: %d\n\n", alloc_count); + + return 0; +} +#endif + +static int vc_sm_seq_file_show(struct seq_file *s, void *v) +{ + struct SM_PDE_T *sm_pde; + + sm_pde = (struct SM_PDE_T *)(s->private); + + if (sm_pde && sm_pde->show) + sm_pde->show(s, v); + + return 0; +} + +static int vc_sm_single_open(struct inode *inode, struct file *file) +{ + return single_open(file, vc_sm_seq_file_show, inode->i_private); +} + +static const struct file_operations vc_sm_debug_fs_fops = { + .open = vc_sm_single_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +/* Adds a resource to the private data list which tracks all the allocated +** data. +*/ +static void vmcs_sm_add_resource(struct SM_PRIV_DATA_T *privdata, + struct SM_RESOURCE_T *resource) +{ + mutex_lock(&(sm_state->map_lock)); + list_add(&resource->resource_list, &privdata->resource_list); + list_add(&resource->global_resource_list, &sm_state->resource_list); + mutex_unlock(&(sm_state->map_lock)); + + pr_debug("[%s]: added resource %p (base addr %p, hdl %x, size %u, cache %u)\n", + __func__, resource, resource->res_base_mem, + resource->res_handle, resource->res_size, resource->res_cached); +} + +/* Locates a resource and acquire a reference on it. +** The resource won't be deleted while there is a reference on it. +*/ +static struct SM_RESOURCE_T *vmcs_sm_acquire_resource(struct SM_PRIV_DATA_T + *private, + unsigned int res_guid) +{ + struct SM_RESOURCE_T *resource, *ret = NULL; + + mutex_lock(&(sm_state->map_lock)); + + list_for_each_entry(resource, &private->resource_list, resource_list) { + if (resource->res_guid != res_guid) + continue; + + pr_debug("[%s]: located resource %p (guid: %x, base addr %p, hdl %x, size %u, cache %u)\n", + __func__, resource, resource->res_guid, + resource->res_base_mem, resource->res_handle, + resource->res_size, resource->res_cached); + resource->ref_count++; + ret = resource; + break; + } + + mutex_unlock(&(sm_state->map_lock)); + + return ret; +} + +/* Locates a resource and acquire a reference on it. +** The resource won't be deleted while there is a reference on it. +*/ +static struct SM_RESOURCE_T *vmcs_sm_acquire_first_resource( + struct SM_PRIV_DATA_T *private) +{ + struct SM_RESOURCE_T *resource, *ret = NULL; + + mutex_lock(&(sm_state->map_lock)); + + list_for_each_entry(resource, &private->resource_list, resource_list) { + pr_debug("[%s]: located resource %p (guid: %x, base addr %p, hdl %x, size %u, cache %u)\n", + __func__, resource, resource->res_guid, + resource->res_base_mem, resource->res_handle, + resource->res_size, resource->res_cached); + resource->ref_count++; + ret = resource; + break; + } + + mutex_unlock(&(sm_state->map_lock)); + + return ret; +} + +/* Locates a resource and acquire a reference on it. +** The resource won't be deleted while there is a reference on it. +*/ +static struct SM_RESOURCE_T *vmcs_sm_acquire_global_resource(unsigned int + res_guid) +{ + struct SM_RESOURCE_T *resource, *ret = NULL; + + mutex_lock(&(sm_state->map_lock)); + + list_for_each_entry(resource, &sm_state->resource_list, + global_resource_list) { + if (resource->res_guid != res_guid) + continue; + + pr_debug("[%s]: located resource %p (guid: %x, base addr %p, hdl %x, size %u, cache %u)\n", + __func__, resource, resource->res_guid, + resource->res_base_mem, resource->res_handle, + resource->res_size, resource->res_cached); + resource->ref_count++; + ret = resource; + break; + } + + mutex_unlock(&(sm_state->map_lock)); + + return ret; +} + +/* Release a previously acquired resource. +** The resource will be deleted when its refcount reaches 0. +*/ +static void vmcs_sm_release_resource(struct SM_RESOURCE_T *resource, int force) +{ + struct SM_PRIV_DATA_T *private = resource->private; + struct sm_mmap *map, *map_tmp; + struct SM_RESOURCE_T *res_tmp; + int ret; + + mutex_lock(&(sm_state->map_lock)); + + if (--resource->ref_count) { + if (force) + pr_err("[%s]: resource %p in use\n", __func__, resource); + + mutex_unlock(&(sm_state->map_lock)); + return; + } + + /* Time to free the resource. Start by removing it from the list */ + list_del(&resource->resource_list); + list_del(&resource->global_resource_list); + + /* Walk the global resource list, find out if the resource is used + * somewhere else. In which case we don't want to delete it. + */ + list_for_each_entry(res_tmp, &sm_state->resource_list, + global_resource_list) { + if (res_tmp->res_handle == resource->res_handle) { + resource->res_handle = 0; + break; + } + } + + mutex_unlock(&(sm_state->map_lock)); + + pr_debug("[%s]: freeing data - guid %x, hdl %x, base address %p\n", + __func__, resource->res_guid, resource->res_handle, + resource->res_base_mem); + resource->res_stats[FREE]++; + + /* Make sure the resource we're removing is unmapped first */ + if (resource->map_count && !list_empty(&resource->map_list)) { + down_write(¤t->mm->mmap_sem); + list_for_each_entry_safe(map, map_tmp, &resource->map_list, + resource_map_list) { + ret = + do_munmap(current->mm, map->res_addr, + resource->res_size, NULL); + if (ret) { + pr_err("[%s]: could not unmap resource %p\n", + __func__, resource); + } + } + up_write(¤t->mm->mmap_sem); + } + + /* Free up the videocore allocated resource. + */ + if (resource->res_handle) { + VC_SM_FREE_T free = { + resource->res_handle, resource->res_base_mem + }; + int status = vc_vchi_sm_free(sm_state->sm_handle, &free, + &private->int_trans_id); + if (status != 0 && status != -EINTR) { + pr_err("[%s]: failed to free memory on videocore (status: %u, trans_id: %u)\n", + __func__, status, private->int_trans_id); + resource->res_stats[FREE_FAIL]++; + ret = -EPERM; + } + } + + /* Free up the shared resource. + */ + if (resource->res_shared) + vmcs_sm_release_resource(resource->res_shared, 0); + + /* Free up the local resource tracking this allocation. + */ + vc_sm_resource_deceased(resource, force); + kfree(resource); +} + +/* Dump the map table for the driver. If process is -1, dumps the whole table, +** if process is a valid pid (non -1) dump only the entries associated with the +** pid of interest. +*/ +static void vmcs_sm_host_walk_map_per_pid(int pid) +{ + struct sm_mmap *map = NULL; + + /* Make sure the device was started properly. + */ + if (sm_state == NULL) { + pr_err("[%s]: invalid device\n", __func__); + return; + } + + mutex_lock(&(sm_state->map_lock)); + + /* Log all applicable mapping(s). + */ + if (!list_empty(&sm_state->map_list)) { + list_for_each_entry(map, &sm_state->map_list, map_list) { + if (pid == -1 || map->res_pid == pid) { + pr_info("[%s]: tgid: %u - vc-hdl: %x, usr-hdl: %x, usr-addr: %lx\n", + __func__, map->res_pid, map->res_vc_hdl, + map->res_usr_hdl, map->res_addr); + } + } + } + + mutex_unlock(&(sm_state->map_lock)); + + return; +} + +/* Dump the allocation table from host side point of view. This only dumps the +** data allocated for this process/device referenced by the file_data. +*/ +static void vmcs_sm_host_walk_alloc(struct SM_PRIV_DATA_T *file_data) +{ + struct SM_RESOURCE_T *resource = NULL; + + /* Make sure the device was started properly. + */ + if ((sm_state == NULL) || (file_data == NULL)) { + pr_err("[%s]: invalid device\n", __func__); + return; + } + + mutex_lock(&(sm_state->map_lock)); + + if (!list_empty(&file_data->resource_list)) { + list_for_each_entry(resource, &file_data->resource_list, + resource_list) { + pr_info("[%s]: guid: %x - hdl: %x, vc-mem: %p, size: %u, cache: %u\n", + __func__, resource->res_guid, resource->res_handle, + resource->res_base_mem, resource->res_size, + resource->res_cached); + } + } + + mutex_unlock(&(sm_state->map_lock)); + + return; +} + +/* Create support for private data tracking. +*/ +static struct SM_PRIV_DATA_T *vc_sm_create_priv_data(pid_t id) +{ + char alloc_name[32]; + struct SM_PRIV_DATA_T *file_data = NULL; + + /* Allocate private structure. */ + file_data = kzalloc(sizeof(*file_data), GFP_KERNEL); + + if (!file_data) { + pr_err("[%s]: cannot allocate file data\n", __func__); + goto out; + } + + snprintf(alloc_name, sizeof(alloc_name), "%d", id); + + INIT_LIST_HEAD(&file_data->resource_list); + file_data->pid = id; + file_data->dir_pid = debugfs_create_dir(alloc_name, + sm_state->dir_alloc); +#if 0 + /* TODO: fix this to support querying statistics per pid */ + + if (IS_ERR_OR_NULL(file_data->dir_pid)) { + file_data->dir_pid = NULL; + } else { + struct dentry *dir_entry; + + dir_entry = debugfs_create_file(VC_SM_RESOURCES, S_IRUGO, + file_data->dir_pid, file_data, + vc_sm_debug_fs_fops); + + file_data->dir_res.dir_entry = dir_entry; + file_data->dir_res.priv_data = file_data; + file_data->dir_res.show = &vc_sm_alloc_show; + + dir_entry = debugfs_create_file(VC_SM_STATS, S_IRUGO, + file_data->dir_pid, file_data, + vc_sm_debug_fs_fops); + + file_data->dir_res.dir_entry = dir_entry; + file_data->dir_res.priv_data = file_data; + file_data->dir_res.show = &vc_sm_statistics_show; + } + pr_debug("[%s]: private data allocated %p\n", __func__, file_data); + +#endif +out: + return file_data; +} + +/* Open the device. Creates a private state to help track all allocation +** associated with this device. +*/ +static int vc_sm_open(struct inode *inode, struct file *file) +{ + int ret = 0; + + /* Make sure the device was started properly. + */ + if (!sm_state) { + pr_err("[%s]: invalid device\n", __func__); + ret = -EPERM; + goto out; + } + + file->private_data = vc_sm_create_priv_data(current->tgid); + if (file->private_data == NULL) { + pr_err("[%s]: failed to create data tracker\n", __func__); + + ret = -ENOMEM; + goto out; + } + +out: + return ret; +} + +/* Close the device. Free up all resources still associated with this device +** at the time. +*/ +static int vc_sm_release(struct inode *inode, struct file *file) +{ + struct SM_PRIV_DATA_T *file_data = + (struct SM_PRIV_DATA_T *)file->private_data; + struct SM_RESOURCE_T *resource; + int ret = 0; + + /* Make sure the device was started properly. + */ + if (sm_state == NULL || file_data == NULL) { + pr_err("[%s]: invalid device\n", __func__); + ret = -EPERM; + goto out; + } + + pr_debug("[%s]: using private data %p\n", __func__, file_data); + + if (file_data->restart_sys == -EINTR) { + VC_SM_ACTION_CLEAN_T action_clean; + + pr_debug("[%s]: releasing following EINTR on %u (trans_id: %u) (likely due to signal)...\n", + __func__, file_data->int_action, + file_data->int_trans_id); + + action_clean.res_action = file_data->int_action; + action_clean.action_trans_id = file_data->int_trans_id; + + vc_vchi_sm_clean_up(sm_state->sm_handle, &action_clean); + } + + while ((resource = vmcs_sm_acquire_first_resource(file_data)) != NULL) { + vmcs_sm_release_resource(resource, 0); + vmcs_sm_release_resource(resource, 1); + } + + /* Remove the corresponding proc entry. */ + debugfs_remove_recursive(file_data->dir_pid); + + /* Terminate the private data. + */ + kfree(file_data); + +out: + return ret; +} + +static void vcsm_vma_open(struct vm_area_struct *vma) +{ + struct sm_mmap *map = (struct sm_mmap *)vma->vm_private_data; + + pr_debug("[%s]: virt %lx-%lx, pid %i, pfn %i\n", + __func__, vma->vm_start, vma->vm_end, (int)current->tgid, + (int)vma->vm_pgoff); + + map->ref_count++; +} + +static void vcsm_vma_close(struct vm_area_struct *vma) +{ + struct sm_mmap *map = (struct sm_mmap *)vma->vm_private_data; + + pr_debug("[%s]: virt %lx-%lx, pid %i, pfn %i\n", + __func__, vma->vm_start, vma->vm_end, (int)current->tgid, + (int)vma->vm_pgoff); + + map->ref_count--; + + /* Remove from the map table. + */ + if (map->ref_count == 0) + vmcs_sm_remove_map(sm_state, map->resource, map); +} + +static int vcsm_vma_fault(struct vm_fault *vmf) +{ + struct sm_mmap *map = (struct sm_mmap *)vmf->vma->vm_private_data; + struct SM_RESOURCE_T *resource = map->resource; + pgoff_t page_offset; + unsigned long pfn; + int ret = 0; + + /* Lock the resource if necessary. + */ + if (!resource->lock_count) { + VC_SM_LOCK_UNLOCK_T lock_unlock; + VC_SM_LOCK_RESULT_T lock_result; + int status; + + lock_unlock.res_handle = resource->res_handle; + lock_unlock.res_mem = resource->res_base_mem; + + pr_debug("[%s]: attempt to lock data - hdl %x, base address %p\n", + __func__, lock_unlock.res_handle, lock_unlock.res_mem); + + /* Lock the videocore allocated resource. + */ + status = vc_vchi_sm_lock(sm_state->sm_handle, + &lock_unlock, &lock_result, 0); + if ((status != 0) || + ((status == 0) && (lock_result.res_mem == NULL))) { + pr_err("[%s]: failed to lock memory on videocore (status: %u)\n", + __func__, status); + resource->res_stats[LOCK_FAIL]++; + return VM_FAULT_SIGBUS; + } + + pfn = vcaddr_to_pfn((unsigned long)resource->res_base_mem); + outer_inv_range(__pfn_to_phys(pfn), + __pfn_to_phys(pfn) + resource->res_size); + + resource->res_stats[LOCK]++; + resource->lock_count++; + + /* Keep track of the new base memory. + */ + if ((lock_result.res_mem != NULL) && + (lock_result.res_old_mem != NULL) && + (lock_result.res_mem != lock_result.res_old_mem)) { + resource->res_base_mem = lock_result.res_mem; + } + } + + /* We don't use vmf->pgoff since that has the fake offset */ + page_offset = ((unsigned long)vmf->address - vmf->vma->vm_start); + pfn = (uint32_t)resource->res_base_mem & 0x3FFFFFFF; + pfn += mm_vc_mem_phys_addr; + pfn += page_offset; + pfn >>= PAGE_SHIFT; + + /* Finally, remap it */ + ret = vm_insert_pfn(vmf->vma, (unsigned long)vmf->address, pfn); + + switch (ret) { + case 0: + case -ERESTARTSYS: + return VM_FAULT_NOPAGE; + case -ENOMEM: + case -EAGAIN: + return VM_FAULT_OOM; + default: + return VM_FAULT_SIGBUS; + } +} + +static struct vm_operations_struct vcsm_vm_ops = { + .open = vcsm_vma_open, + .close = vcsm_vma_close, + .fault = vcsm_vma_fault, +}; + +/* Walks a VMA and clean each valid page from the cache */ +static void vcsm_vma_cache_clean_page_range(unsigned long addr, + unsigned long end) +{ + pgd_t *pgd; + pud_t *pud; + pmd_t *pmd; + pte_t *pte; + unsigned long pgd_next, pud_next, pmd_next; + + if (addr >= end) + return; + + /* Walk PGD */ + pgd = pgd_offset(current->mm, addr); + do { + pgd_next = pgd_addr_end(addr, end); + + if (pgd_none(*pgd) || pgd_bad(*pgd)) + continue; + + /* Walk PUD */ + pud = pud_offset(pgd, addr); + do { + pud_next = pud_addr_end(addr, pgd_next); + if (pud_none(*pud) || pud_bad(*pud)) + continue; + + /* Walk PMD */ + pmd = pmd_offset(pud, addr); + do { + pmd_next = pmd_addr_end(addr, pud_next); + if (pmd_none(*pmd) || pmd_bad(*pmd)) + continue; + + /* Walk PTE */ + pte = pte_offset_map(pmd, addr); + do { + if (pte_none(*pte) + || !pte_present(*pte)) + continue; + + /* Clean + invalidate */ + dmac_flush_range((const void *) addr, + (const void *) + (addr + PAGE_SIZE)); + + } while (pte++, addr += + PAGE_SIZE, addr != pmd_next); + pte_unmap(pte); + + } while (pmd++, addr = pmd_next, addr != pud_next); + + } while (pud++, addr = pud_next, addr != pgd_next); + } while (pgd++, addr = pgd_next, addr != end); +} + +/* Map an allocated data into something that the user space. +*/ +static int vc_sm_mmap(struct file *file, struct vm_area_struct *vma) +{ + int ret = 0; + struct SM_PRIV_DATA_T *file_data = + (struct SM_PRIV_DATA_T *)file->private_data; + struct SM_RESOURCE_T *resource = NULL; + struct sm_mmap *map = NULL; + + /* Make sure the device was started properly. + */ + if ((sm_state == NULL) || (file_data == NULL)) { + pr_err("[%s]: invalid device\n", __func__); + return -EPERM; + } + + pr_debug("[%s]: private data %p, guid %x\n", __func__, file_data, + ((unsigned int)vma->vm_pgoff << PAGE_SHIFT)); + + /* We lookup to make sure that the data we are being asked to mmap is + ** something that we allocated. + ** + ** We use the offset information as the key to tell us which resource + ** we are mapping. + */ + resource = vmcs_sm_acquire_resource(file_data, + ((unsigned int)vma->vm_pgoff << + PAGE_SHIFT)); + if (resource == NULL) { + pr_err("[%s]: failed to locate resource for guid %x\n", __func__, + ((unsigned int)vma->vm_pgoff << PAGE_SHIFT)); + return -ENOMEM; + } + + pr_debug("[%s]: guid %x, tgid %u, %u, %u\n", + __func__, resource->res_guid, current->tgid, resource->pid, + file_data->pid); + + /* Check permissions. + */ + if (resource->pid && (resource->pid != current->tgid)) { + pr_err("[%s]: current tgid %u != %u owner\n", + __func__, current->tgid, resource->pid); + ret = -EPERM; + goto error; + } + + /* Verify that what we are asked to mmap is proper. + */ + if (resource->res_size != (unsigned int)(vma->vm_end - vma->vm_start)) { + pr_err("[%s]: size inconsistency (resource: %u - mmap: %u)\n", + __func__, + resource->res_size, + (unsigned int)(vma->vm_end - vma->vm_start)); + + ret = -EINVAL; + goto error; + } + + /* Keep track of the tuple in the global resource list such that one + * can do a mapping lookup for address/memory handle. + */ + map = kzalloc(sizeof(*map), GFP_KERNEL); + if (map == NULL) { + pr_err("[%s]: failed to allocate global tracking resource\n", + __func__); + ret = -ENOMEM; + goto error; + } + + map->res_pid = current->tgid; + map->res_vc_hdl = resource->res_handle; + map->res_usr_hdl = resource->res_guid; + map->res_addr = (long unsigned int)vma->vm_start; + map->resource = resource; + map->vma = vma; + vmcs_sm_add_map(sm_state, resource, map); + + /* We are not actually mapping the pages, we just provide a fault + ** handler to allow pages to be mapped when accessed + */ + vma->vm_flags |= + VM_IO | VM_PFNMAP | VM_DONTCOPY | VM_DONTEXPAND; + vma->vm_ops = &vcsm_vm_ops; + vma->vm_private_data = map; + + /* vm_pgoff is the first PFN of the mapped memory */ + vma->vm_pgoff = (unsigned long)resource->res_base_mem & 0x3FFFFFFF; + vma->vm_pgoff += mm_vc_mem_phys_addr; + vma->vm_pgoff >>= PAGE_SHIFT; + + if ((resource->res_cached == VMCS_SM_CACHE_NONE) || + (resource->res_cached == VMCS_SM_CACHE_VC)) { + /* Allocated non host cached memory, honour it. + */ + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + } + + pr_debug("[%s]: resource %p (guid %x) - cnt %u, base address %p, handle %x, size %u (%u), cache %u\n", + __func__, + resource, resource->res_guid, resource->lock_count, + resource->res_base_mem, resource->res_handle, + resource->res_size, (unsigned int)(vma->vm_end - vma->vm_start), + resource->res_cached); + + pr_debug("[%s]: resource %p (base address %p, handle %x) - map-count %d, usr-addr %x\n", + __func__, resource, resource->res_base_mem, + resource->res_handle, resource->map_count, + (unsigned int)vma->vm_start); + + vcsm_vma_open(vma); + resource->res_stats[MAP]++; + vmcs_sm_release_resource(resource, 0); + return 0; + +error: + resource->res_stats[MAP_FAIL]++; + vmcs_sm_release_resource(resource, 0); + return ret; +} + +/* Allocate a shared memory handle and block. +*/ +int vc_sm_ioctl_alloc(struct SM_PRIV_DATA_T *private, + struct vmcs_sm_ioctl_alloc *ioparam) +{ + int ret = 0; + int status; + struct SM_RESOURCE_T *resource; + VC_SM_ALLOC_T alloc = { 0 }; + VC_SM_ALLOC_RESULT_T result = { 0 }; + + /* Setup our allocation parameters */ + alloc.type = ((ioparam->cached == VMCS_SM_CACHE_VC) + || (ioparam->cached == + VMCS_SM_CACHE_BOTH)) ? VC_SM_ALLOC_CACHED : + VC_SM_ALLOC_NON_CACHED; + alloc.base_unit = ioparam->size; + alloc.num_unit = ioparam->num; + alloc.allocator = current->tgid; + /* Align to kernel page size */ + alloc.alignement = 4096; + /* Align the size to the kernel page size */ + alloc.base_unit = + (alloc.base_unit + alloc.alignement - 1) & ~(alloc.alignement - 1); + if (*ioparam->name) { + memcpy(alloc.name, ioparam->name, sizeof(alloc.name) - 1); + } else { + memcpy(alloc.name, VMCS_SM_RESOURCE_NAME_DEFAULT, + sizeof(VMCS_SM_RESOURCE_NAME_DEFAULT)); + } + + pr_debug("[%s]: attempt to allocate \"%s\" data - type %u, base %u (%u), num %u, alignement %u\n", + __func__, alloc.name, alloc.type, ioparam->size, + alloc.base_unit, alloc.num_unit, alloc.alignement); + + /* Allocate local resource to track this allocation. + */ + resource = kzalloc(sizeof(*resource), GFP_KERNEL); + if (!resource) { + ret = -ENOMEM; + goto error; + } + INIT_LIST_HEAD(&resource->map_list); + resource->ref_count++; + resource->pid = current->tgid; + + /* Allocate the videocore resource. + */ + status = vc_vchi_sm_alloc(sm_state->sm_handle, &alloc, &result, + &private->int_trans_id); + if (status == -EINTR) { + pr_debug("[%s]: requesting allocate memory action restart (trans_id: %u)\n", + __func__, private->int_trans_id); + ret = -ERESTARTSYS; + private->restart_sys = -EINTR; + private->int_action = VC_SM_MSG_TYPE_ALLOC; + goto error; + } else if (status != 0 || (status == 0 && result.res_mem == NULL)) { + pr_err("[%s]: failed to allocate memory on videocore (status: %u, trans_id: %u)\n", + __func__, status, private->int_trans_id); + ret = -ENOMEM; + resource->res_stats[ALLOC_FAIL]++; + goto error; + } + + /* Keep track of the resource we created. + */ + resource->private = private; + resource->res_handle = result.res_handle; + resource->res_base_mem = result.res_mem; + resource->res_size = alloc.base_unit * alloc.num_unit; + resource->res_cached = ioparam->cached; + + /* Kernel/user GUID. This global identifier is used for mmap'ing the + * allocated region from user space, it is passed as the mmap'ing + * offset, we use it to 'hide' the videocore handle/address. + */ + mutex_lock(&sm_state->lock); + resource->res_guid = ++sm_state->guid; + mutex_unlock(&sm_state->lock); + resource->res_guid <<= PAGE_SHIFT; + + vmcs_sm_add_resource(private, resource); + + pr_debug("[%s]: allocated data - guid %x, hdl %x, base address %p, size %d, cache %d\n", + __func__, resource->res_guid, resource->res_handle, + resource->res_base_mem, resource->res_size, + resource->res_cached); + + /* We're done */ + resource->res_stats[ALLOC]++; + ioparam->handle = resource->res_guid; + return 0; + +error: + pr_err("[%s]: failed to allocate \"%s\" data (%i) - type %u, base %u (%u), num %u, alignment %u\n", + __func__, alloc.name, ret, alloc.type, ioparam->size, + alloc.base_unit, alloc.num_unit, alloc.alignement); + if (resource != NULL) { + vc_sm_resource_deceased(resource, 1); + kfree(resource); + } + return ret; +} + +/* Share an allocate memory handle and block. +*/ +int vc_sm_ioctl_alloc_share(struct SM_PRIV_DATA_T *private, + struct vmcs_sm_ioctl_alloc_share *ioparam) +{ + struct SM_RESOURCE_T *resource, *shared_resource; + int ret = 0; + + pr_debug("[%s]: attempt to share resource %u\n", __func__, + ioparam->handle); + + shared_resource = vmcs_sm_acquire_global_resource(ioparam->handle); + if (shared_resource == NULL) { + ret = -ENOMEM; + goto error; + } + + /* Allocate local resource to track this allocation. + */ + resource = kzalloc(sizeof(*resource), GFP_KERNEL); + if (resource == NULL) { + pr_err("[%s]: failed to allocate local tracking resource\n", + __func__); + ret = -ENOMEM; + goto error; + } + INIT_LIST_HEAD(&resource->map_list); + resource->ref_count++; + resource->pid = current->tgid; + + /* Keep track of the resource we created. + */ + resource->private = private; + resource->res_handle = shared_resource->res_handle; + resource->res_base_mem = shared_resource->res_base_mem; + resource->res_size = shared_resource->res_size; + resource->res_cached = shared_resource->res_cached; + resource->res_shared = shared_resource; + + mutex_lock(&sm_state->lock); + resource->res_guid = ++sm_state->guid; + mutex_unlock(&sm_state->lock); + resource->res_guid <<= PAGE_SHIFT; + + vmcs_sm_add_resource(private, resource); + + pr_debug("[%s]: allocated data - guid %x, hdl %x, base address %p, size %d, cache %d\n", + __func__, resource->res_guid, resource->res_handle, + resource->res_base_mem, resource->res_size, + resource->res_cached); + + /* We're done */ + resource->res_stats[ALLOC]++; + ioparam->handle = resource->res_guid; + ioparam->size = resource->res_size; + return 0; + +error: + pr_err("[%s]: failed to share %u\n", __func__, ioparam->handle); + if (shared_resource != NULL) + vmcs_sm_release_resource(shared_resource, 0); + + return ret; +} + +/* Free a previously allocated shared memory handle and block. +*/ +static int vc_sm_ioctl_free(struct SM_PRIV_DATA_T *private, + struct vmcs_sm_ioctl_free *ioparam) +{ + struct SM_RESOURCE_T *resource = + vmcs_sm_acquire_resource(private, ioparam->handle); + + if (resource == NULL) { + pr_err("[%s]: resource for guid %u does not exist\n", __func__, + ioparam->handle); + return -EINVAL; + } + + /* Check permissions. + */ + if (resource->pid && (resource->pid != current->tgid)) { + pr_err("[%s]: current tgid %u != %u owner\n", + __func__, current->tgid, resource->pid); + vmcs_sm_release_resource(resource, 0); + return -EPERM; + } + + vmcs_sm_release_resource(resource, 0); + vmcs_sm_release_resource(resource, 0); + return 0; +} + +/* Resize a previously allocated shared memory handle and block. +*/ +static int vc_sm_ioctl_resize(struct SM_PRIV_DATA_T *private, + struct vmcs_sm_ioctl_resize *ioparam) +{ + int ret = 0; + int status; + VC_SM_RESIZE_T resize; + struct SM_RESOURCE_T *resource; + + /* Locate resource from GUID. + */ + resource = vmcs_sm_acquire_resource(private, ioparam->handle); + if (!resource) { + pr_err("[%s]: failed resource - guid %x\n", + __func__, ioparam->handle); + ret = -EFAULT; + goto error; + } + + /* If the resource is locked, its reference count will be not NULL, + ** in which case we will not be allowed to resize it anyways, so + ** reject the attempt here. + */ + if (resource->lock_count != 0) { + pr_err("[%s]: cannot resize - guid %x, ref-cnt %d\n", + __func__, ioparam->handle, resource->lock_count); + ret = -EFAULT; + goto error; + } + + /* Check permissions. + */ + if (resource->pid && (resource->pid != current->tgid)) { + pr_err("[%s]: current tgid %u != %u owner\n", __func__, + current->tgid, resource->pid); + ret = -EPERM; + goto error; + } + + if (resource->map_count != 0) { + pr_err("[%s]: cannot resize - guid %x, ref-cnt %d\n", + __func__, ioparam->handle, resource->map_count); + ret = -EFAULT; + goto error; + } + + resize.res_handle = resource->res_handle; + resize.res_mem = resource->res_base_mem; + resize.res_new_size = ioparam->new_size; + + pr_debug("[%s]: attempt to resize data - guid %x, hdl %x, base address %p\n", + __func__, ioparam->handle, resize.res_handle, resize.res_mem); + + /* Resize the videocore allocated resource. + */ + status = vc_vchi_sm_resize(sm_state->sm_handle, &resize, + &private->int_trans_id); + if (status == -EINTR) { + pr_debug("[%s]: requesting resize memory action restart (trans_id: %u)\n", + __func__, private->int_trans_id); + ret = -ERESTARTSYS; + private->restart_sys = -EINTR; + private->int_action = VC_SM_MSG_TYPE_RESIZE; + goto error; + } else if (status != 0) { + pr_err("[%s]: failed to resize memory on videocore (status: %u, trans_id: %u)\n", + __func__, status, private->int_trans_id); + ret = -EPERM; + goto error; + } + + pr_debug("[%s]: success to resize data - hdl %x, size %d -> %d\n", + __func__, resize.res_handle, resource->res_size, + resize.res_new_size); + + /* Successfully resized, save the information and inform the user. + */ + ioparam->old_size = resource->res_size; + resource->res_size = resize.res_new_size; + +error: + if (resource) + vmcs_sm_release_resource(resource, 0); + + return ret; +} + +/* Lock a previously allocated shared memory handle and block. +*/ +static int vc_sm_ioctl_lock(struct SM_PRIV_DATA_T *private, + struct vmcs_sm_ioctl_lock_unlock *ioparam, + int change_cache, enum vmcs_sm_cache_e cache_type, + unsigned int vc_addr) +{ + int status; + VC_SM_LOCK_UNLOCK_T lock; + VC_SM_LOCK_RESULT_T result; + struct SM_RESOURCE_T *resource; + int ret = 0; + struct sm_mmap *map, *map_tmp; + long unsigned int phys_addr; + + map = NULL; + + /* Locate resource from GUID. + */ + resource = vmcs_sm_acquire_resource(private, ioparam->handle); + if (resource == NULL) { + ret = -EINVAL; + goto error; + } + + /* Check permissions. + */ + if (resource->pid && (resource->pid != current->tgid)) { + pr_err("[%s]: current tgid %u != %u owner\n", __func__, + current->tgid, resource->pid); + ret = -EPERM; + goto error; + } + + lock.res_handle = resource->res_handle; + lock.res_mem = resource->res_base_mem; + + /* Take the lock and get the address to be mapped. + */ + if (vc_addr == 0) { + pr_debug("[%s]: attempt to lock data - guid %x, hdl %x, base address %p\n", + __func__, ioparam->handle, lock.res_handle, + lock.res_mem); + + /* Lock the videocore allocated resource. + */ + status = vc_vchi_sm_lock(sm_state->sm_handle, &lock, &result, + &private->int_trans_id); + if (status == -EINTR) { + pr_debug("[%s]: requesting lock memory action restart (trans_id: %u)\n", + __func__, private->int_trans_id); + ret = -ERESTARTSYS; + private->restart_sys = -EINTR; + private->int_action = VC_SM_MSG_TYPE_LOCK; + goto error; + } else if (status != 0 || + (status == 0 && result.res_mem == NULL)) { + pr_err("[%s]: failed to lock memory on videocore (status: %u, trans_id: %u)\n", + __func__, status, private->int_trans_id); + ret = -EPERM; + resource->res_stats[LOCK_FAIL]++; + goto error; + } + + pr_debug("[%s]: succeed to lock data - hdl %x, base address %p (%p), ref-cnt %d\n", + __func__, lock.res_handle, result.res_mem, + lock.res_mem, resource->lock_count); + } + /* Lock assumed taken already, address to be mapped is known. + */ + else + resource->res_base_mem = (void *)vc_addr; + + resource->res_stats[LOCK]++; + resource->lock_count++; + + /* Keep track of the new base memory allocation if it has changed. + */ + if ((vc_addr == 0) && + (result.res_mem != NULL) && + (result.res_old_mem != NULL) && + (result.res_mem != result.res_old_mem)) { + resource->res_base_mem = result.res_mem; + + /* Kernel allocated resources. + */ + if (resource->pid == 0) { + if (!list_empty(&resource->map_list)) { + list_for_each_entry_safe(map, map_tmp, + &resource->map_list, + resource_map_list) { + if (map->res_addr) { + iounmap((void *)map->res_addr); + map->res_addr = 0; + + vmcs_sm_remove_map(sm_state, + map->resource, + map); + break; + } + } + } + } + } + + if (change_cache) + resource->res_cached = cache_type; + + if (resource->map_count) { + ioparam->addr = + vmcs_sm_usr_address_from_pid_and_usr_handle( + current->tgid, ioparam->handle); + + pr_debug("[%s] map_count %d private->pid %d current->tgid %d hnd %x addr %u\n", + __func__, resource->map_count, private->pid, + current->tgid, ioparam->handle, ioparam->addr); + } else { + /* Kernel allocated resources. + */ + if (resource->pid == 0) { + pr_debug("[%s]: attempt mapping kernel resource - guid %x, hdl %x\n", + __func__, ioparam->handle, lock.res_handle); + + ioparam->addr = 0; + + map = kzalloc(sizeof(*map), GFP_KERNEL); + if (map == NULL) { + pr_err("[%s]: failed allocating tracker\n", + __func__); + ret = -ENOMEM; + goto error; + } else { + phys_addr = (uint32_t)resource->res_base_mem & + 0x3FFFFFFF; + phys_addr += mm_vc_mem_phys_addr; + if (resource->res_cached + == VMCS_SM_CACHE_HOST) { + ioparam->addr = (long unsigned int) + /* TODO - make cached work */ + ioremap_nocache(phys_addr, + resource->res_size); + + pr_debug("[%s]: mapping kernel - guid %x, hdl %x - cached mapping %u\n", + __func__, ioparam->handle, + lock.res_handle, ioparam->addr); + } else { + ioparam->addr = (long unsigned int) + ioremap_nocache(phys_addr, + resource->res_size); + + pr_debug("[%s]: mapping kernel- guid %x, hdl %x - non cached mapping %u\n", + __func__, ioparam->handle, + lock.res_handle, ioparam->addr); + } + + map->res_pid = 0; + map->res_vc_hdl = resource->res_handle; + map->res_usr_hdl = resource->res_guid; + map->res_addr = ioparam->addr; + map->resource = resource; + map->vma = NULL; + + vmcs_sm_add_map(sm_state, resource, map); + } + } else + ioparam->addr = 0; + } + +error: + if (resource) + vmcs_sm_release_resource(resource, 0); + + return ret; +} + +/* Unlock a previously allocated shared memory handle and block. +*/ +static int vc_sm_ioctl_unlock(struct SM_PRIV_DATA_T *private, + struct vmcs_sm_ioctl_lock_unlock *ioparam, + int flush, int wait_reply, int no_vc_unlock) +{ + int status; + VC_SM_LOCK_UNLOCK_T unlock; + struct sm_mmap *map, *map_tmp; + struct SM_RESOURCE_T *resource; + int ret = 0; + + map = NULL; + + /* Locate resource from GUID. + */ + resource = vmcs_sm_acquire_resource(private, ioparam->handle); + if (resource == NULL) { + ret = -EINVAL; + goto error; + } + + /* Check permissions. + */ + if (resource->pid && (resource->pid != current->tgid)) { + pr_err("[%s]: current tgid %u != %u owner\n", + __func__, current->tgid, resource->pid); + ret = -EPERM; + goto error; + } + + unlock.res_handle = resource->res_handle; + unlock.res_mem = resource->res_base_mem; + + pr_debug("[%s]: attempt to unlock data - guid %x, hdl %x, base address %p\n", + __func__, ioparam->handle, unlock.res_handle, unlock.res_mem); + + /* User space allocated resources. + */ + if (resource->pid) { + /* Flush if requested */ + if (resource->res_cached && flush) { + dma_addr_t phys_addr = 0; + resource->res_stats[FLUSH]++; + + phys_addr = + (dma_addr_t)((uint32_t)resource->res_base_mem & + 0x3FFFFFFF); + phys_addr += (dma_addr_t)mm_vc_mem_phys_addr; + + /* L1 cache flush */ + down_read(¤t->mm->mmap_sem); + list_for_each_entry(map, &resource->map_list, + resource_map_list) { + if (map->vma) { + unsigned long start; + unsigned long end; + start = map->vma->vm_start; + end = map->vma->vm_end; + + vcsm_vma_cache_clean_page_range( + start, end); + } + } + up_read(¤t->mm->mmap_sem); + + /* L2 cache flush */ + outer_clean_range(phys_addr, + phys_addr + + (size_t) resource->res_size); + } + + /* We need to zap all the vmas associated with this resource */ + if (resource->lock_count == 1) { + down_read(¤t->mm->mmap_sem); + list_for_each_entry(map, &resource->map_list, + resource_map_list) { + if (map->vma) { + zap_vma_ptes(map->vma, + map->vma->vm_start, + map->vma->vm_end - + map->vma->vm_start); + } + } + up_read(¤t->mm->mmap_sem); + } + } + /* Kernel allocated resources. */ + else { + /* Global + Taken in this context */ + if (resource->ref_count == 2) { + if (!list_empty(&resource->map_list)) { + list_for_each_entry_safe(map, map_tmp, + &resource->map_list, + resource_map_list) { + if (map->res_addr) { + if (flush && + (resource->res_cached == + VMCS_SM_CACHE_HOST)) { + long unsigned int + phys_addr; + phys_addr = (uint32_t) + resource->res_base_mem & 0x3FFFFFFF; + phys_addr += + mm_vc_mem_phys_addr; + + /* L1 cache flush */ + dmac_flush_range((const + void + *) + map->res_addr, (const void *) + (map->res_addr + resource->res_size)); + + /* L2 cache flush */ + outer_clean_range + (phys_addr, + phys_addr + + (size_t) + resource->res_size); + } + + iounmap((void *)map->res_addr); + map->res_addr = 0; + + vmcs_sm_remove_map(sm_state, + map->resource, + map); + break; + } + } + } + } + } + + if (resource->lock_count) { + /* Bypass the videocore unlock. + */ + if (no_vc_unlock) + status = 0; + /* Unlock the videocore allocated resource. + */ + else { + status = + vc_vchi_sm_unlock(sm_state->sm_handle, &unlock, + &private->int_trans_id, + wait_reply); + if (status == -EINTR) { + pr_debug("[%s]: requesting unlock memory action restart (trans_id: %u)\n", + __func__, private->int_trans_id); + + ret = -ERESTARTSYS; + resource->res_stats[UNLOCK]--; + private->restart_sys = -EINTR; + private->int_action = VC_SM_MSG_TYPE_UNLOCK; + goto error; + } else if (status != 0) { + pr_err("[%s]: failed to unlock vc mem (status: %u, trans_id: %u)\n", + __func__, status, private->int_trans_id); + + ret = -EPERM; + resource->res_stats[UNLOCK_FAIL]++; + goto error; + } + } + + resource->res_stats[UNLOCK]++; + resource->lock_count--; + } + + pr_debug("[%s]: success to unlock data - hdl %x, base address %p, ref-cnt %d\n", + __func__, unlock.res_handle, unlock.res_mem, + resource->lock_count); + +error: + if (resource) + vmcs_sm_release_resource(resource, 0); + + return ret; +} + +/* Handle control from host. */ +static long vc_sm_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + int ret = 0; + unsigned int cmdnr = _IOC_NR(cmd); + struct SM_PRIV_DATA_T *file_data = + (struct SM_PRIV_DATA_T *)file->private_data; + struct SM_RESOURCE_T *resource = NULL; + + /* Validate we can work with this device. */ + if ((sm_state == NULL) || (file_data == NULL)) { + pr_err("[%s]: invalid device\n", __func__); + ret = -EPERM; + goto out; + } + + pr_debug("[%s]: cmd %x tgid %u, owner %u\n", __func__, cmdnr, + current->tgid, file_data->pid); + + /* Action is a re-post of a previously interrupted action? */ + if (file_data->restart_sys == -EINTR) { + VC_SM_ACTION_CLEAN_T action_clean; + + pr_debug("[%s]: clean up of action %u (trans_id: %u) following EINTR\n", + __func__, file_data->int_action, + file_data->int_trans_id); + + action_clean.res_action = file_data->int_action; + action_clean.action_trans_id = file_data->int_trans_id; + + vc_vchi_sm_clean_up(sm_state->sm_handle, &action_clean); + + file_data->restart_sys = 0; + } + + /* Now process the command. + */ + switch (cmdnr) { + /* New memory allocation. + */ + case VMCS_SM_CMD_ALLOC: + { + struct vmcs_sm_ioctl_alloc ioparam; + + /* Get the parameter data. + */ + if (copy_from_user + (&ioparam, (void *)arg, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-from-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + goto out; + } + + ret = vc_sm_ioctl_alloc(file_data, &ioparam); + if (!ret && + (copy_to_user((void *)arg, + &ioparam, sizeof(ioparam)) != 0)) { + struct vmcs_sm_ioctl_free freeparam = { + ioparam.handle + }; + pr_err("[%s]: failed to copy-to-user for cmd %x\n", + __func__, cmdnr); + vc_sm_ioctl_free(file_data, &freeparam); + ret = -EFAULT; + } + + /* Done. + */ + goto out; + } + break; + + /* Share existing memory allocation. + */ + case VMCS_SM_CMD_ALLOC_SHARE: + { + struct vmcs_sm_ioctl_alloc_share ioparam; + + /* Get the parameter data. + */ + if (copy_from_user + (&ioparam, (void *)arg, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-from-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + goto out; + } + + ret = vc_sm_ioctl_alloc_share(file_data, &ioparam); + + /* Copy result back to user. + */ + if (!ret + && copy_to_user((void *)arg, &ioparam, + sizeof(ioparam)) != 0) { + struct vmcs_sm_ioctl_free freeparam = { + ioparam.handle + }; + pr_err("[%s]: failed to copy-to-user for cmd %x\n", + __func__, cmdnr); + vc_sm_ioctl_free(file_data, &freeparam); + ret = -EFAULT; + } + + /* Done. + */ + goto out; + } + break; + + /* Lock (attempt to) *and* register a cache behavior change. + */ + case VMCS_SM_CMD_LOCK_CACHE: + { + struct vmcs_sm_ioctl_lock_cache ioparam; + struct vmcs_sm_ioctl_lock_unlock lock; + + /* Get parameter data. + */ + if (copy_from_user + (&ioparam, (void *)arg, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-from-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + goto out; + } + + lock.handle = ioparam.handle; + ret = + vc_sm_ioctl_lock(file_data, &lock, 1, + ioparam.cached, 0); + + /* Done. + */ + goto out; + } + break; + + /* Lock (attempt to) existing memory allocation. + */ + case VMCS_SM_CMD_LOCK: + { + struct vmcs_sm_ioctl_lock_unlock ioparam; + + /* Get parameter data. + */ + if (copy_from_user + (&ioparam, (void *)arg, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-from-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + goto out; + } + + ret = vc_sm_ioctl_lock(file_data, &ioparam, 0, 0, 0); + + /* Copy result back to user. + */ + if (copy_to_user((void *)arg, &ioparam, sizeof(ioparam)) + != 0) { + pr_err("[%s]: failed to copy-to-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + } + + /* Done. + */ + goto out; + } + break; + + /* Unlock (attempt to) existing memory allocation. + */ + case VMCS_SM_CMD_UNLOCK: + { + struct vmcs_sm_ioctl_lock_unlock ioparam; + + /* Get parameter data. + */ + if (copy_from_user + (&ioparam, (void *)arg, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-from-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + goto out; + } + + ret = vc_sm_ioctl_unlock(file_data, &ioparam, 0, 1, 0); + + /* Done. + */ + goto out; + } + break; + + /* Resize (attempt to) existing memory allocation. + */ + case VMCS_SM_CMD_RESIZE: + { + struct vmcs_sm_ioctl_resize ioparam; + + /* Get parameter data. + */ + if (copy_from_user + (&ioparam, (void *)arg, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-from-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + goto out; + } + + ret = vc_sm_ioctl_resize(file_data, &ioparam); + + /* Copy result back to user. + */ + if (copy_to_user((void *)arg, &ioparam, sizeof(ioparam)) + != 0) { + pr_err("[%s]: failed to copy-to-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + } + + /* Done. + */ + goto out; + } + break; + + /* Terminate existing memory allocation. + */ + case VMCS_SM_CMD_FREE: + { + struct vmcs_sm_ioctl_free ioparam; + + /* Get parameter data. + */ + if (copy_from_user + (&ioparam, (void *)arg, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-from-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + goto out; + } + + ret = vc_sm_ioctl_free(file_data, &ioparam); + + /* Done. + */ + goto out; + } + break; + + /* Walk allocation on videocore, information shows up in the + ** videocore log. + */ + case VMCS_SM_CMD_VC_WALK_ALLOC: + { + pr_debug("[%s]: invoking walk alloc\n", __func__); + + if (vc_vchi_sm_walk_alloc(sm_state->sm_handle) != 0) + pr_err("[%s]: failed to walk-alloc on videocore\n", + __func__); + + /* Done. + */ + goto out; + } + break; +/* Walk mapping table on host, information shows up in the + ** kernel log. + */ + case VMCS_SM_CMD_HOST_WALK_MAP: + { + /* Use pid of -1 to tell to walk the whole map. */ + vmcs_sm_host_walk_map_per_pid(-1); + + /* Done. */ + goto out; + } + break; + + /* Walk mapping table per process on host. */ + case VMCS_SM_CMD_HOST_WALK_PID_ALLOC: + { + struct vmcs_sm_ioctl_walk ioparam; + + /* Get parameter data. */ + if (copy_from_user(&ioparam, + (void *)arg, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-from-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + goto out; + } + + vmcs_sm_host_walk_alloc(file_data); + + /* Done. */ + goto out; + } + break; + + /* Walk allocation per process on host. */ + case VMCS_SM_CMD_HOST_WALK_PID_MAP: + { + struct vmcs_sm_ioctl_walk ioparam; + + /* Get parameter data. */ + if (copy_from_user(&ioparam, + (void *)arg, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-from-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + goto out; + } + + vmcs_sm_host_walk_map_per_pid(ioparam.pid); + + /* Done. */ + goto out; + } + break; + + /* Gets the size of the memory associated with a user handle. */ + case VMCS_SM_CMD_SIZE_USR_HANDLE: + { + struct vmcs_sm_ioctl_size ioparam; + + /* Get parameter data. */ + if (copy_from_user(&ioparam, + (void *)arg, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-from-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + goto out; + } + + /* Locate resource from GUID. */ + resource = + vmcs_sm_acquire_resource(file_data, ioparam.handle); + if (resource != NULL) { + ioparam.size = resource->res_size; + vmcs_sm_release_resource(resource, 0); + } else { + ioparam.size = 0; + } + + if (copy_to_user((void *)arg, + &ioparam, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-to-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + } + + /* Done. */ + goto out; + } + break; + + /* Verify we are dealing with a valid resource. */ + case VMCS_SM_CMD_CHK_USR_HANDLE: + { + struct vmcs_sm_ioctl_chk ioparam; + + /* Get parameter data. + */ + if (copy_from_user(&ioparam, + (void *)arg, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-from-user for cmd %x\n", + __func__, cmdnr); + + ret = -EFAULT; + goto out; + } + + /* Locate resource from GUID. */ + resource = + vmcs_sm_acquire_resource(file_data, ioparam.handle); + if (resource == NULL) + ret = -EINVAL; + /* If the resource is cacheable, return additional + * information that may be needed to flush the cache. + */ + else if ((resource->res_cached == VMCS_SM_CACHE_HOST) || + (resource->res_cached == VMCS_SM_CACHE_BOTH)) { + ioparam.addr = + vmcs_sm_usr_address_from_pid_and_usr_handle + (current->tgid, ioparam.handle); + ioparam.size = resource->res_size; + ioparam.cache = resource->res_cached; + } else { + ioparam.addr = 0; + ioparam.size = 0; + ioparam.cache = resource->res_cached; + } + + if (resource) + vmcs_sm_release_resource(resource, 0); + + if (copy_to_user((void *)arg, + &ioparam, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-to-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + } + + /* Done. + */ + goto out; + } + break; + + /* + * Maps a user handle given the process and the virtual address. + */ + case VMCS_SM_CMD_MAPPED_USR_HANDLE: + { + struct vmcs_sm_ioctl_map ioparam; + + /* Get parameter data. */ + if (copy_from_user(&ioparam, + (void *)arg, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-from-user for cmd %x\n", + __func__, cmdnr); + + ret = -EFAULT; + goto out; + } + + ioparam.handle = + vmcs_sm_usr_handle_from_pid_and_address( + ioparam.pid, ioparam.addr); + + resource = + vmcs_sm_acquire_resource(file_data, ioparam.handle); + if ((resource != NULL) + && ((resource->res_cached == VMCS_SM_CACHE_HOST) + || (resource->res_cached == + VMCS_SM_CACHE_BOTH))) { + ioparam.size = resource->res_size; + } else { + ioparam.size = 0; + } + + if (resource) + vmcs_sm_release_resource(resource, 0); + + if (copy_to_user((void *)arg, + &ioparam, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-to-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + } + + /* Done. */ + goto out; + } + break; + + /* + * Maps a videocore handle given process and virtual address. + */ + case VMCS_SM_CMD_MAPPED_VC_HDL_FROM_ADDR: + { + struct vmcs_sm_ioctl_map ioparam; + + /* Get parameter data. */ + if (copy_from_user(&ioparam, + (void *)arg, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-from-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + goto out; + } + + ioparam.handle = vmcs_sm_vc_handle_from_pid_and_address( + ioparam.pid, ioparam.addr); + + if (copy_to_user((void *)arg, + &ioparam, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-to-user for cmd %x\n", + __func__, cmdnr); + + ret = -EFAULT; + } + + /* Done. + */ + goto out; + } + break; + + /* Maps a videocore handle given process and user handle. */ + case VMCS_SM_CMD_MAPPED_VC_HDL_FROM_HDL: + { + struct vmcs_sm_ioctl_map ioparam; + + /* Get parameter data. */ + if (copy_from_user(&ioparam, + (void *)arg, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-from-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + goto out; + } + + /* Locate resource from GUID. */ + resource = + vmcs_sm_acquire_resource(file_data, ioparam.handle); + if (resource != NULL) { + ioparam.handle = resource->res_handle; + vmcs_sm_release_resource(resource, 0); + } else { + ioparam.handle = 0; + } + + if (copy_to_user((void *)arg, + &ioparam, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-to-user for cmd %x\n", + __func__, cmdnr); + + ret = -EFAULT; + } + + /* Done. */ + goto out; + } + break; + + /* + * Maps a videocore address given process and videocore handle. + */ + case VMCS_SM_CMD_MAPPED_VC_ADDR_FROM_HDL: + { + struct vmcs_sm_ioctl_map ioparam; + + /* Get parameter data. */ + if (copy_from_user(&ioparam, + (void *)arg, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-from-user for cmd %x\n", + __func__, cmdnr); + + ret = -EFAULT; + goto out; + } + + /* Locate resource from GUID. */ + resource = + vmcs_sm_acquire_resource(file_data, ioparam.handle); + if (resource != NULL) { + ioparam.addr = + (unsigned int)resource->res_base_mem; + vmcs_sm_release_resource(resource, 0); + } else { + ioparam.addr = 0; + } + + if (copy_to_user((void *)arg, + &ioparam, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-to-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + } + + /* Done. */ + goto out; + } + break; + + /* Maps a user address given process and vc handle. + */ + case VMCS_SM_CMD_MAPPED_USR_ADDRESS: + { + struct vmcs_sm_ioctl_map ioparam; + + /* Get parameter data. */ + if (copy_from_user(&ioparam, + (void *)arg, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-from-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + goto out; + } + + /* + * Return the address information from the mapping, + * 0 (ie NULL) if it cannot locate the actual mapping. + */ + ioparam.addr = + vmcs_sm_usr_address_from_pid_and_usr_handle + (ioparam.pid, ioparam.handle); + + if (copy_to_user((void *)arg, + &ioparam, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-to-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + } + + /* Done. */ + goto out; + } + break; + + /* Flush the cache for a given mapping. */ + case VMCS_SM_CMD_FLUSH: + { + struct vmcs_sm_ioctl_cache ioparam; + + /* Get parameter data. */ + if (copy_from_user(&ioparam, + (void *)arg, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-from-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + goto out; + } + + /* Locate resource from GUID. */ + resource = + vmcs_sm_acquire_resource(file_data, ioparam.handle); + + if ((resource != NULL) && resource->res_cached) { + dma_addr_t phys_addr = 0; + + resource->res_stats[FLUSH]++; + + phys_addr = + (dma_addr_t)((uint32_t) + resource->res_base_mem & + 0x3FFFFFFF); + phys_addr += (dma_addr_t)mm_vc_mem_phys_addr; + + /* L1 cache flush */ + down_read(¤t->mm->mmap_sem); + vcsm_vma_cache_clean_page_range((unsigned long) + ioparam.addr, + (unsigned long) + ioparam.addr + + ioparam.size); + up_read(¤t->mm->mmap_sem); + + /* L2 cache flush */ + outer_clean_range(phys_addr, + phys_addr + + (size_t) ioparam.size); + } else if (resource == NULL) { + ret = -EINVAL; + goto out; + } + + if (resource) + vmcs_sm_release_resource(resource, 0); + + /* Done. */ + goto out; + } + break; + + /* Invalidate the cache for a given mapping. */ + case VMCS_SM_CMD_INVALID: + { + struct vmcs_sm_ioctl_cache ioparam; + + /* Get parameter data. */ + if (copy_from_user(&ioparam, + (void *)arg, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-from-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + goto out; + } + + /* Locate resource from GUID. + */ + resource = + vmcs_sm_acquire_resource(file_data, ioparam.handle); + + if ((resource != NULL) && resource->res_cached) { + dma_addr_t phys_addr = 0; + + resource->res_stats[INVALID]++; + + phys_addr = + (dma_addr_t)((uint32_t) + resource->res_base_mem & + 0x3FFFFFFF); + phys_addr += (dma_addr_t)mm_vc_mem_phys_addr; + + /* L2 cache invalidate */ + outer_inv_range(phys_addr, + phys_addr + + (size_t) ioparam.size); + + /* L1 cache invalidate */ + down_read(¤t->mm->mmap_sem); + vcsm_vma_cache_clean_page_range((unsigned long) + ioparam.addr, + (unsigned long) + ioparam.addr + + ioparam.size); + up_read(¤t->mm->mmap_sem); + } else if (resource == NULL) { + ret = -EINVAL; + goto out; + } + + if (resource) + vmcs_sm_release_resource(resource, 0); + + /* Done. + */ + goto out; + } + break; + + /* Flush/Invalidate the cache for a given mapping. */ + case VMCS_SM_CMD_CLEAN_INVALID: + { + int i; + struct vmcs_sm_ioctl_clean_invalid ioparam; + + /* Get parameter data. */ + if (copy_from_user(&ioparam, + (void *)arg, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-from-user for cmd %x\n", + __func__, cmdnr); + ret = -EFAULT; + goto out; + } + for (i=0; ires_cached) { + unsigned long base = ioparam.s[i].addr & ~(PAGE_SIZE-1); + unsigned long end = (ioparam.s[i].addr + ioparam.s[i].size + PAGE_SIZE-1) & ~(PAGE_SIZE-1); + resource->res_stats[ioparam.s[i].cmd == 1 ? INVALID:FLUSH]++; + + /* L1/L2 cache flush */ + down_read(¤t->mm->mmap_sem); + vcsm_vma_cache_clean_page_range(base, end); + up_read(¤t->mm->mmap_sem); + } else if (resource == NULL) { + ret = -EINVAL; + goto out; + } + + if (resource) + vmcs_sm_release_resource(resource, 0); + } + break; + } + } + } + break; + + default: + { + ret = -EINVAL; + goto out; + } + break; + } + +out: + return ret; +} + +/* Device operations that we managed in this driver. +*/ +static const struct file_operations vmcs_sm_ops = { + .owner = THIS_MODULE, + .unlocked_ioctl = vc_sm_ioctl, + .open = vc_sm_open, + .release = vc_sm_release, + .mmap = vc_sm_mmap, +}; + +/* Creation of device. +*/ +static int vc_sm_create_sharedmemory(void) +{ + int ret; + + if (sm_state == NULL) { + ret = -ENOMEM; + goto out; + } + + /* Create a device class for creating dev nodes. + */ + sm_state->sm_class = class_create(THIS_MODULE, "vc-sm"); + if (IS_ERR(sm_state->sm_class)) { + pr_err("[%s]: unable to create device class\n", __func__); + ret = PTR_ERR(sm_state->sm_class); + goto out; + } + + /* Create a character driver. + */ + ret = alloc_chrdev_region(&sm_state->sm_devid, + DEVICE_MINOR, 1, DEVICE_NAME); + if (ret != 0) { + pr_err("[%s]: unable to allocate device number\n", __func__); + goto out_dev_class_destroy; + } + + cdev_init(&sm_state->sm_cdev, &vmcs_sm_ops); + ret = cdev_add(&sm_state->sm_cdev, sm_state->sm_devid, 1); + if (ret != 0) { + pr_err("[%s]: unable to register device\n", __func__); + goto out_chrdev_unreg; + } + + /* Create a device node. + */ + sm_state->sm_dev = device_create(sm_state->sm_class, + NULL, + MKDEV(MAJOR(sm_state->sm_devid), + DEVICE_MINOR), NULL, + DEVICE_NAME); + if (IS_ERR(sm_state->sm_dev)) { + pr_err("[%s]: unable to create device node\n", __func__); + ret = PTR_ERR(sm_state->sm_dev); + goto out_chrdev_del; + } + + goto out; + +out_chrdev_del: + cdev_del(&sm_state->sm_cdev); +out_chrdev_unreg: + unregister_chrdev_region(sm_state->sm_devid, 1); +out_dev_class_destroy: + class_destroy(sm_state->sm_class); + sm_state->sm_class = NULL; +out: + return ret; +} + +/* Termination of the device. +*/ +static int vc_sm_remove_sharedmemory(void) +{ + int ret; + + if (sm_state == NULL) { + /* Nothing to do. + */ + ret = 0; + goto out; + } + + /* Remove the sharedmemory character driver. + */ + cdev_del(&sm_state->sm_cdev); + + /* Unregister region. + */ + unregister_chrdev_region(sm_state->sm_devid, 1); + + ret = 0; + goto out; + +out: + return ret; +} + +/* Videocore connected. */ +static void vc_sm_connected_init(void) +{ + int ret; + VCHI_INSTANCE_T vchi_instance; + VCHI_CONNECTION_T *vchi_connection = NULL; + + pr_info("[%s]: start\n", __func__); + + /* Allocate memory for the state structure. + */ + sm_state = kzalloc(sizeof(struct SM_STATE_T), GFP_KERNEL); + if (sm_state == NULL) { + pr_err("[%s]: failed to allocate memory\n", __func__); + ret = -ENOMEM; + goto out; + } + + mutex_init(&sm_state->lock); + mutex_init(&sm_state->map_lock); + + /* Initialize and create a VCHI connection for the shared memory service + ** running on videocore. + */ + ret = vchi_initialise(&vchi_instance); + if (ret != 0) { + pr_err("[%s]: failed to initialise VCHI instance (ret=%d)\n", + __func__, ret); + + ret = -EIO; + goto err_free_mem; + } + + ret = vchi_connect(NULL, 0, vchi_instance); + if (ret != 0) { + pr_err("[%s]: failed to connect VCHI instance (ret=%d)\n", + __func__, ret); + + ret = -EIO; + goto err_free_mem; + } + + /* Initialize an instance of the shared memory service. */ + sm_state->sm_handle = + vc_vchi_sm_init(vchi_instance, &vchi_connection, 1); + if (sm_state->sm_handle == NULL) { + pr_err("[%s]: failed to initialize shared memory service\n", + __func__); + + ret = -EPERM; + goto err_free_mem; + } + + /* Create a debug fs directory entry (root). */ + sm_state->dir_root = debugfs_create_dir(VC_SM_DIR_ROOT_NAME, NULL); + if (!sm_state->dir_root) { + pr_err("[%s]: failed to create \'%s\' directory entry\n", + __func__, VC_SM_DIR_ROOT_NAME); + + ret = -EPERM; + goto err_stop_sm_service; + } + + sm_state->dir_state.show = &vc_sm_global_state_show; + sm_state->dir_state.dir_entry = debugfs_create_file(VC_SM_STATE, + S_IRUGO, sm_state->dir_root, &sm_state->dir_state, + &vc_sm_debug_fs_fops); + + sm_state->dir_stats.show = &vc_sm_global_statistics_show; + sm_state->dir_stats.dir_entry = debugfs_create_file(VC_SM_STATS, + S_IRUGO, sm_state->dir_root, &sm_state->dir_stats, + &vc_sm_debug_fs_fops); + + /* Create the proc entry children. */ + sm_state->dir_alloc = debugfs_create_dir(VC_SM_DIR_ALLOC_NAME, + sm_state->dir_root); + + /* Create a shared memory device. */ + ret = vc_sm_create_sharedmemory(); + if (ret != 0) { + pr_err("[%s]: failed to create shared memory device\n", + __func__); + goto err_remove_debugfs; + } + + INIT_LIST_HEAD(&sm_state->map_list); + INIT_LIST_HEAD(&sm_state->resource_list); + + sm_state->data_knl = vc_sm_create_priv_data(0); + if (sm_state->data_knl == NULL) { + pr_err("[%s]: failed to create kernel private data tracker\n", + __func__); + goto err_remove_shared_memory; + } + + /* Done! + */ + sm_inited = 1; + goto out; + +err_remove_shared_memory: + vc_sm_remove_sharedmemory(); +err_remove_debugfs: + debugfs_remove_recursive(sm_state->dir_root); +err_stop_sm_service: + vc_vchi_sm_stop(&sm_state->sm_handle); +err_free_mem: + kfree(sm_state); +out: + pr_info("[%s]: end - returning %d\n", __func__, ret); +} + +/* Driver loading. */ +static int __init vc_sm_init(void) +{ + pr_info("vc-sm: Videocore shared memory driver\n"); + vchiq_add_connected_callback(vc_sm_connected_init); + return 0; +} + +/* Driver unloading. */ +static void __exit vc_sm_exit(void) +{ + pr_debug("[%s]: start\n", __func__); + if (sm_inited) { + /* Remove shared memory device. + */ + vc_sm_remove_sharedmemory(); + + /* Remove all proc entries. + */ + debugfs_remove_recursive(sm_state->dir_root); + + /* Stop the videocore shared memory service. + */ + vc_vchi_sm_stop(&sm_state->sm_handle); + + /* Free the memory for the state structure. + */ + mutex_destroy(&(sm_state->map_lock)); + kfree(sm_state); + } + + pr_debug("[%s]: end\n", __func__); +} + +#if defined(__KERNEL__) +/* Allocate a shared memory handle and block. */ +int vc_sm_alloc(VC_SM_ALLOC_T *alloc, int *handle) +{ + struct vmcs_sm_ioctl_alloc ioparam = { 0 }; + int ret; + struct SM_RESOURCE_T *resource; + + /* Validate we can work with this device. + */ + if (sm_state == NULL || alloc == NULL || handle == NULL) { + pr_err("[%s]: invalid input\n", __func__); + return -EPERM; + } + + ioparam.size = alloc->base_unit; + ioparam.num = alloc->num_unit; + ioparam.cached = + alloc->type == VC_SM_ALLOC_CACHED ? VMCS_SM_CACHE_VC : 0; + + ret = vc_sm_ioctl_alloc(sm_state->data_knl, &ioparam); + + if (ret == 0) { + resource = + vmcs_sm_acquire_resource(sm_state->data_knl, + ioparam.handle); + if (resource) { + resource->pid = 0; + vmcs_sm_release_resource(resource, 0); + + /* Assign valid handle at this time. + */ + *handle = ioparam.handle; + } else { + ret = -ENOMEM; + } + } + + return ret; +} +EXPORT_SYMBOL_GPL(vc_sm_alloc); + +/* Get an internal resource handle mapped from the external one. +*/ +int vc_sm_int_handle(int handle) +{ + struct SM_RESOURCE_T *resource; + int ret = 0; + + /* Validate we can work with this device. + */ + if (sm_state == NULL || handle == 0) { + pr_err("[%s]: invalid input\n", __func__); + return 0; + } + + /* Locate resource from GUID. + */ + resource = vmcs_sm_acquire_resource(sm_state->data_knl, handle); + if (resource) { + ret = resource->res_handle; + vmcs_sm_release_resource(resource, 0); + } + + return ret; +} +EXPORT_SYMBOL_GPL(vc_sm_int_handle); + +/* Free a previously allocated shared memory handle and block. +*/ +int vc_sm_free(int handle) +{ + struct vmcs_sm_ioctl_free ioparam = { handle }; + + /* Validate we can work with this device. + */ + if (sm_state == NULL || handle == 0) { + pr_err("[%s]: invalid input\n", __func__); + return -EPERM; + } + + return vc_sm_ioctl_free(sm_state->data_knl, &ioparam); +} +EXPORT_SYMBOL_GPL(vc_sm_free); + +/* Lock a memory handle for use by kernel. +*/ +int vc_sm_lock(int handle, VC_SM_LOCK_CACHE_MODE_T mode, + long unsigned int *data) +{ + struct vmcs_sm_ioctl_lock_unlock ioparam; + int ret; + + /* Validate we can work with this device. + */ + if (sm_state == NULL || handle == 0 || data == NULL) { + pr_err("[%s]: invalid input\n", __func__); + return -EPERM; + } + + *data = 0; + + ioparam.handle = handle; + ret = vc_sm_ioctl_lock(sm_state->data_knl, + &ioparam, + 1, + ((mode == + VC_SM_LOCK_CACHED) ? VMCS_SM_CACHE_HOST : + VMCS_SM_CACHE_NONE), 0); + + *data = ioparam.addr; + return ret; +} +EXPORT_SYMBOL_GPL(vc_sm_lock); + +/* Unlock a memory handle in use by kernel. +*/ +int vc_sm_unlock(int handle, int flush, int no_vc_unlock) +{ + struct vmcs_sm_ioctl_lock_unlock ioparam; + + /* Validate we can work with this device. + */ + if (sm_state == NULL || handle == 0) { + pr_err("[%s]: invalid input\n", __func__); + return -EPERM; + } + + ioparam.handle = handle; + return vc_sm_ioctl_unlock(sm_state->data_knl, + &ioparam, flush, 0, no_vc_unlock); +} +EXPORT_SYMBOL_GPL(vc_sm_unlock); + +/* Map a shared memory region for use by kernel. +*/ +int vc_sm_map(int handle, unsigned int sm_addr, VC_SM_LOCK_CACHE_MODE_T mode, + long unsigned int *data) +{ + struct vmcs_sm_ioctl_lock_unlock ioparam; + int ret; + + /* Validate we can work with this device. + */ + if (sm_state == NULL || handle == 0 || data == NULL || sm_addr == 0) { + pr_err("[%s]: invalid input\n", __func__); + return -EPERM; + } + + *data = 0; + + ioparam.handle = handle; + ret = vc_sm_ioctl_lock(sm_state->data_knl, + &ioparam, + 1, + ((mode == + VC_SM_LOCK_CACHED) ? VMCS_SM_CACHE_HOST : + VMCS_SM_CACHE_NONE), sm_addr); + + *data = ioparam.addr; + return ret; +} +EXPORT_SYMBOL_GPL(vc_sm_map); +#endif + +late_initcall(vc_sm_init); +module_exit(vc_sm_exit); + +MODULE_AUTHOR("Broadcom"); +MODULE_DESCRIPTION("VideoCore SharedMemory Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/broadcom/vmcs_sm_ioctl.h b/include/linux/broadcom/vmcs_sm_ioctl.h new file mode 100644 index 0000000000000000000000000000000000000000..334f36d0d697b047df2922b5f2db67f38cf76564 --- /dev/null +++ b/include/linux/broadcom/vmcs_sm_ioctl.h @@ -0,0 +1,248 @@ +/***************************************************************************** +* Copyright 2011 Broadcom Corporation. All rights reserved. +* +* Unless you and Broadcom execute a separate written software license +* agreement governing use of this software, this software is licensed to you +* under the terms of the GNU General Public License version 2, available at +* http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). +* +* Notwithstanding the above, under no circumstances may you combine this +* software in any way with any other Broadcom software provided under a +* license other than the GPL, without Broadcom's express prior written +* consent. +* +*****************************************************************************/ + +#if !defined(__VMCS_SM_IOCTL_H__INCLUDED__) +#define __VMCS_SM_IOCTL_H__INCLUDED__ + +/* ---- Include Files ---------------------------------------------------- */ + +#if defined(__KERNEL__) +#include /* Needed for standard types */ +#else +#include +#endif + +#include + +/* ---- Constants and Types ---------------------------------------------- */ + +#define VMCS_SM_RESOURCE_NAME 32 +#define VMCS_SM_RESOURCE_NAME_DEFAULT "sm-host-resource" + +/* Type define used to create unique IOCTL number */ +#define VMCS_SM_MAGIC_TYPE 'I' + +/* IOCTL commands */ +enum vmcs_sm_cmd_e { + VMCS_SM_CMD_ALLOC = 0x5A, /* Start at 0x5A arbitrarily */ + VMCS_SM_CMD_ALLOC_SHARE, + VMCS_SM_CMD_LOCK, + VMCS_SM_CMD_LOCK_CACHE, + VMCS_SM_CMD_UNLOCK, + VMCS_SM_CMD_RESIZE, + VMCS_SM_CMD_UNMAP, + VMCS_SM_CMD_FREE, + VMCS_SM_CMD_FLUSH, + VMCS_SM_CMD_INVALID, + + VMCS_SM_CMD_SIZE_USR_HANDLE, + VMCS_SM_CMD_CHK_USR_HANDLE, + + VMCS_SM_CMD_MAPPED_USR_HANDLE, + VMCS_SM_CMD_MAPPED_USR_ADDRESS, + VMCS_SM_CMD_MAPPED_VC_HDL_FROM_ADDR, + VMCS_SM_CMD_MAPPED_VC_HDL_FROM_HDL, + VMCS_SM_CMD_MAPPED_VC_ADDR_FROM_HDL, + + VMCS_SM_CMD_VC_WALK_ALLOC, + VMCS_SM_CMD_HOST_WALK_MAP, + VMCS_SM_CMD_HOST_WALK_PID_ALLOC, + VMCS_SM_CMD_HOST_WALK_PID_MAP, + + VMCS_SM_CMD_CLEAN_INVALID, + + VMCS_SM_CMD_LAST /* Do no delete */ +}; + +/* Cache type supported, conveniently matches the user space definition in +** user-vcsm.h. +*/ +enum vmcs_sm_cache_e { + VMCS_SM_CACHE_NONE, + VMCS_SM_CACHE_HOST, + VMCS_SM_CACHE_VC, + VMCS_SM_CACHE_BOTH, +}; + +/* IOCTL Data structures */ +struct vmcs_sm_ioctl_alloc { + /* user -> kernel */ + unsigned int size; + unsigned int num; + enum vmcs_sm_cache_e cached; + char name[VMCS_SM_RESOURCE_NAME]; + + /* kernel -> user */ + unsigned int handle; + /* unsigned int base_addr; */ +}; + +struct vmcs_sm_ioctl_alloc_share { + /* user -> kernel */ + unsigned int handle; + unsigned int size; +}; + +struct vmcs_sm_ioctl_free { + /* user -> kernel */ + unsigned int handle; + /* unsigned int base_addr; */ +}; + +struct vmcs_sm_ioctl_lock_unlock { + /* user -> kernel */ + unsigned int handle; + + /* kernel -> user */ + unsigned int addr; +}; + +struct vmcs_sm_ioctl_lock_cache { + /* user -> kernel */ + unsigned int handle; + enum vmcs_sm_cache_e cached; +}; + +struct vmcs_sm_ioctl_resize { + /* user -> kernel */ + unsigned int handle; + unsigned int new_size; + + /* kernel -> user */ + unsigned int old_size; +}; + +struct vmcs_sm_ioctl_map { + /* user -> kernel */ + /* and kernel -> user */ + unsigned int pid; + unsigned int handle; + unsigned int addr; + + /* kernel -> user */ + unsigned int size; +}; + +struct vmcs_sm_ioctl_walk { + /* user -> kernel */ + unsigned int pid; +}; + +struct vmcs_sm_ioctl_chk { + /* user -> kernel */ + unsigned int handle; + + /* kernel -> user */ + unsigned int addr; + unsigned int size; + enum vmcs_sm_cache_e cache; +}; + +struct vmcs_sm_ioctl_size { + /* user -> kernel */ + unsigned int handle; + + /* kernel -> user */ + unsigned int size; +}; + +struct vmcs_sm_ioctl_cache { + /* user -> kernel */ + unsigned int handle; + unsigned int addr; + unsigned int size; +}; + +struct vmcs_sm_ioctl_clean_invalid { + /* user -> kernel */ + struct { + unsigned int cmd; + unsigned int handle; + unsigned int addr; + unsigned int size; + } s[8]; +}; + +/* IOCTL numbers */ +#define VMCS_SM_IOCTL_MEM_ALLOC\ + _IOR(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_ALLOC,\ + struct vmcs_sm_ioctl_alloc) +#define VMCS_SM_IOCTL_MEM_ALLOC_SHARE\ + _IOR(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_ALLOC_SHARE,\ + struct vmcs_sm_ioctl_alloc_share) +#define VMCS_SM_IOCTL_MEM_LOCK\ + _IOR(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_LOCK,\ + struct vmcs_sm_ioctl_lock_unlock) +#define VMCS_SM_IOCTL_MEM_LOCK_CACHE\ + _IOR(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_LOCK_CACHE,\ + struct vmcs_sm_ioctl_lock_cache) +#define VMCS_SM_IOCTL_MEM_UNLOCK\ + _IOR(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_UNLOCK,\ + struct vmcs_sm_ioctl_lock_unlock) +#define VMCS_SM_IOCTL_MEM_RESIZE\ + _IOR(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_RESIZE,\ + struct vmcs_sm_ioctl_resize) +#define VMCS_SM_IOCTL_MEM_FREE\ + _IOR(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_FREE,\ + struct vmcs_sm_ioctl_free) +#define VMCS_SM_IOCTL_MEM_FLUSH\ + _IOR(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_FLUSH,\ + struct vmcs_sm_ioctl_cache) +#define VMCS_SM_IOCTL_MEM_INVALID\ + _IOR(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_INVALID,\ + struct vmcs_sm_ioctl_cache) +#define VMCS_SM_IOCTL_MEM_CLEAN_INVALID\ + _IOR(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_CLEAN_INVALID,\ + struct vmcs_sm_ioctl_clean_invalid) + +#define VMCS_SM_IOCTL_SIZE_USR_HDL\ + _IOR(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_SIZE_USR_HANDLE,\ + struct vmcs_sm_ioctl_size) +#define VMCS_SM_IOCTL_CHK_USR_HDL\ + _IOR(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_CHK_USR_HANDLE,\ + struct vmcs_sm_ioctl_chk) + +#define VMCS_SM_IOCTL_MAP_USR_HDL\ + _IOR(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_MAPPED_USR_HANDLE,\ + struct vmcs_sm_ioctl_map) +#define VMCS_SM_IOCTL_MAP_USR_ADDRESS\ + _IOR(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_MAPPED_USR_ADDRESS,\ + struct vmcs_sm_ioctl_map) +#define VMCS_SM_IOCTL_MAP_VC_HDL_FR_ADDR\ + _IOR(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_MAPPED_VC_HDL_FROM_ADDR,\ + struct vmcs_sm_ioctl_map) +#define VMCS_SM_IOCTL_MAP_VC_HDL_FR_HDL\ + _IOR(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_MAPPED_VC_HDL_FROM_HDL,\ + struct vmcs_sm_ioctl_map) +#define VMCS_SM_IOCTL_MAP_VC_ADDR_FR_HDL\ + _IOR(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_MAPPED_VC_ADDR_FROM_HDL,\ + struct vmcs_sm_ioctl_map) + +#define VMCS_SM_IOCTL_VC_WALK_ALLOC\ + _IO(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_VC_WALK_ALLOC) +#define VMCS_SM_IOCTL_HOST_WALK_MAP\ + _IO(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_HOST_WALK_MAP) +#define VMCS_SM_IOCTL_HOST_WALK_PID_ALLOC\ + _IOR(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_HOST_WALK_PID_ALLOC,\ + struct vmcs_sm_ioctl_walk) +#define VMCS_SM_IOCTL_HOST_WALK_PID_MAP\ + _IOR(VMCS_SM_MAGIC_TYPE, VMCS_SM_CMD_HOST_WALK_PID_MAP,\ + struct vmcs_sm_ioctl_walk) + +/* ---- Variable Externs ------------------------------------------------- */ + +/* ---- Function Prototypes ---------------------------------------------- */ + +#endif /* __VMCS_SM_IOCTL_H__INCLUDED__ */ From a9db5311f8bb4d8e98dbc0bdf9b11355cd1ac2c0 Mon Sep 17 00:00:00 2001 From: Luke Wren Date: Fri, 21 Aug 2015 23:14:48 +0100 Subject: [PATCH 045/165] Add /dev/gpiomem device for rootless user GPIO access Signed-off-by: Luke Wren bcm2835-gpiomem: Fix for ARCH_BCM2835 builds Build on ARCH_BCM2835, and fail to probe if no IO resource. See: https://github.com/raspberrypi/linux/issues/1154 --- drivers/char/broadcom/Kconfig | 9 ++ drivers/char/broadcom/Makefile | 3 + drivers/char/broadcom/bcm2835-gpiomem.c | 258 ++++++++++++++++++++++++++++++++ 3 files changed, 270 insertions(+) create mode 100644 drivers/char/broadcom/bcm2835-gpiomem.c diff --git a/drivers/char/broadcom/Kconfig b/drivers/char/broadcom/Kconfig index 09a43da7bcf85c3506c1b4f1b06369c3b6c2bbe6..ede8b5ca7aa1012507aa2006e89b5c47ea267351 100644 --- a/drivers/char/broadcom/Kconfig +++ b/drivers/char/broadcom/Kconfig @@ -25,3 +25,12 @@ config BCM_VC_SM help Support for the VC shared memory on the Broadcom reference design. Uses the VCHIQ stack. + +config BCM2835_DEVGPIOMEM + tristate "/dev/gpiomem rootless GPIO access via mmap() on the BCM2835" + default m + help + Provides users with root-free access to the GPIO registers + on the 2835. Calling mmap(/dev/gpiomem) will map the GPIO + register page to the user's pointer. + diff --git a/drivers/char/broadcom/Makefile b/drivers/char/broadcom/Makefile index 419af4180deb058ce8d91b606af821d4d3ebda4c..187a0b02f189669d751964df5275eb21827b0440 100644 --- a/drivers/char/broadcom/Makefile +++ b/drivers/char/broadcom/Makefile @@ -1,2 +1,5 @@ obj-$(CONFIG_BCM2708_VCMEM) += vc_mem.o obj-$(CONFIG_BCM_VC_SM) += vc_sm/ + +obj-$(CONFIG_BCM2835_DEVGPIOMEM)+= bcm2835-gpiomem.o + diff --git a/drivers/char/broadcom/bcm2835-gpiomem.c b/drivers/char/broadcom/bcm2835-gpiomem.c new file mode 100644 index 0000000000000000000000000000000000000000..f5e7f1ba8fb6f18dee77fad06a17480c6603cb4e --- /dev/null +++ b/drivers/char/broadcom/bcm2835-gpiomem.c @@ -0,0 +1,258 @@ +/** + * GPIO memory device driver + * + * Creates a chardev /dev/gpiomem which will provide user access to + * the BCM2835's GPIO registers when it is mmap()'d. + * No longer need root for user GPIO access, but without relaxing permissions + * on /dev/mem. + * + * Written by Luke Wren + * Copyright (c) 2015, Raspberry Pi (Trading) Ltd. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The names of the above-listed copyright holders may not be used + * to endorse or promote products derived from this software without + * specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2, as published by the Free + * Software Foundation. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS + * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define DEVICE_NAME "bcm2835-gpiomem" +#define DRIVER_NAME "gpiomem-bcm2835" +#define DEVICE_MINOR 0 + +struct bcm2835_gpiomem_instance { + unsigned long gpio_regs_phys; + struct device *dev; +}; + +static struct cdev bcm2835_gpiomem_cdev; +static dev_t bcm2835_gpiomem_devid; +static struct class *bcm2835_gpiomem_class; +static struct device *bcm2835_gpiomem_dev; +static struct bcm2835_gpiomem_instance *inst; + + +/**************************************************************************** +* +* GPIO mem chardev file ops +* +***************************************************************************/ + +static int bcm2835_gpiomem_open(struct inode *inode, struct file *file) +{ + int dev = iminor(inode); + int ret = 0; + + if (dev != DEVICE_MINOR) { + dev_err(inst->dev, "Unknown minor device: %d", dev); + ret = -ENXIO; + } + return ret; +} + +static int bcm2835_gpiomem_release(struct inode *inode, struct file *file) +{ + int dev = iminor(inode); + int ret = 0; + + if (dev != DEVICE_MINOR) { + dev_err(inst->dev, "Unknown minor device %d", dev); + ret = -ENXIO; + } + return ret; +} + +static const struct vm_operations_struct bcm2835_gpiomem_vm_ops = { +#ifdef CONFIG_HAVE_IOREMAP_PROT + .access = generic_access_phys +#endif +}; + +static int bcm2835_gpiomem_mmap(struct file *file, struct vm_area_struct *vma) +{ + /* Ignore what the user says - they're getting the GPIO regs + whether they like it or not! */ + unsigned long gpio_page = inst->gpio_regs_phys >> PAGE_SHIFT; + + vma->vm_page_prot = phys_mem_access_prot(file, gpio_page, + PAGE_SIZE, + vma->vm_page_prot); + vma->vm_ops = &bcm2835_gpiomem_vm_ops; + if (remap_pfn_range(vma, vma->vm_start, + gpio_page, + PAGE_SIZE, + vma->vm_page_prot)) { + return -EAGAIN; + } + return 0; +} + +static const struct file_operations +bcm2835_gpiomem_fops = { + .owner = THIS_MODULE, + .open = bcm2835_gpiomem_open, + .release = bcm2835_gpiomem_release, + .mmap = bcm2835_gpiomem_mmap, +}; + + + /**************************************************************************** +* +* Probe and remove functions +* +***************************************************************************/ + + +static int bcm2835_gpiomem_probe(struct platform_device *pdev) +{ + int err; + void *ptr_err; + struct device *dev = &pdev->dev; + struct resource *ioresource; + + /* Allocate buffers and instance data */ + + inst = kzalloc(sizeof(struct bcm2835_gpiomem_instance), GFP_KERNEL); + + if (!inst) { + err = -ENOMEM; + goto failed_inst_alloc; + } + + inst->dev = dev; + + ioresource = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (ioresource) { + inst->gpio_regs_phys = ioresource->start; + } else { + dev_err(inst->dev, "failed to get IO resource"); + err = -ENOENT; + goto failed_get_resource; + } + + /* Create character device entries */ + + err = alloc_chrdev_region(&bcm2835_gpiomem_devid, + DEVICE_MINOR, 1, DEVICE_NAME); + if (err != 0) { + dev_err(inst->dev, "unable to allocate device number"); + goto failed_alloc_chrdev; + } + cdev_init(&bcm2835_gpiomem_cdev, &bcm2835_gpiomem_fops); + bcm2835_gpiomem_cdev.owner = THIS_MODULE; + err = cdev_add(&bcm2835_gpiomem_cdev, bcm2835_gpiomem_devid, 1); + if (err != 0) { + dev_err(inst->dev, "unable to register device"); + goto failed_cdev_add; + } + + /* Create sysfs entries */ + + bcm2835_gpiomem_class = class_create(THIS_MODULE, DEVICE_NAME); + ptr_err = bcm2835_gpiomem_class; + if (IS_ERR(ptr_err)) + goto failed_class_create; + + bcm2835_gpiomem_dev = device_create(bcm2835_gpiomem_class, NULL, + bcm2835_gpiomem_devid, NULL, + "gpiomem"); + ptr_err = bcm2835_gpiomem_dev; + if (IS_ERR(ptr_err)) + goto failed_device_create; + + dev_info(inst->dev, "Initialised: Registers at 0x%08lx", + inst->gpio_regs_phys); + + return 0; + +failed_device_create: + class_destroy(bcm2835_gpiomem_class); +failed_class_create: + cdev_del(&bcm2835_gpiomem_cdev); + err = PTR_ERR(ptr_err); +failed_cdev_add: + unregister_chrdev_region(bcm2835_gpiomem_devid, 1); +failed_alloc_chrdev: +failed_get_resource: + kfree(inst); +failed_inst_alloc: + dev_err(inst->dev, "could not load bcm2835_gpiomem"); + return err; +} + +static int bcm2835_gpiomem_remove(struct platform_device *pdev) +{ + struct device *dev = inst->dev; + + kfree(inst); + device_destroy(bcm2835_gpiomem_class, bcm2835_gpiomem_devid); + class_destroy(bcm2835_gpiomem_class); + cdev_del(&bcm2835_gpiomem_cdev); + unregister_chrdev_region(bcm2835_gpiomem_devid, 1); + + dev_info(dev, "GPIO mem driver removed - OK"); + return 0; +} + + /**************************************************************************** +* +* Register the driver with device tree +* +***************************************************************************/ + +static const struct of_device_id bcm2835_gpiomem_of_match[] = { + {.compatible = "brcm,bcm2835-gpiomem",}, + { /* sentinel */ }, +}; + +MODULE_DEVICE_TABLE(of, bcm2835_gpiomem_of_match); + +static struct platform_driver bcm2835_gpiomem_driver = { + .probe = bcm2835_gpiomem_probe, + .remove = bcm2835_gpiomem_remove, + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + .of_match_table = bcm2835_gpiomem_of_match, + }, +}; + +module_platform_driver(bcm2835_gpiomem_driver); + +MODULE_ALIAS("platform:gpiomem-bcm2835"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("gpiomem driver for accessing GPIO from userspace"); +MODULE_AUTHOR("Luke Wren "); From b80eb5aed096c03128cc352589904395d4412dc9 Mon Sep 17 00:00:00 2001 From: Luke Wren Date: Sat, 5 Sep 2015 01:14:45 +0100 Subject: [PATCH 046/165] Add SMI driver Signed-off-by: Luke Wren --- .../bindings/misc/brcm,bcm2835-smi-dev.txt | 17 + .../devicetree/bindings/misc/brcm,bcm2835-smi.txt | 48 + drivers/char/broadcom/Kconfig | 8 + drivers/char/broadcom/Makefile | 2 +- drivers/char/broadcom/bcm2835_smi_dev.c | 402 +++++++++ drivers/misc/Kconfig | 8 + drivers/misc/Makefile | 1 + drivers/misc/bcm2835_smi.c | 985 +++++++++++++++++++++ include/linux/broadcom/bcm2835_smi.h | 391 ++++++++ 9 files changed, 1861 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/misc/brcm,bcm2835-smi-dev.txt create mode 100644 Documentation/devicetree/bindings/misc/brcm,bcm2835-smi.txt create mode 100644 drivers/char/broadcom/bcm2835_smi_dev.c create mode 100644 drivers/misc/bcm2835_smi.c create mode 100644 include/linux/broadcom/bcm2835_smi.h diff --git a/Documentation/devicetree/bindings/misc/brcm,bcm2835-smi-dev.txt b/Documentation/devicetree/bindings/misc/brcm,bcm2835-smi-dev.txt new file mode 100644 index 0000000000000000000000000000000000000000..68cc8ebc3392d45cbccac0dc0354514076d43398 --- /dev/null +++ b/Documentation/devicetree/bindings/misc/brcm,bcm2835-smi-dev.txt @@ -0,0 +1,17 @@ +* Broadcom BCM2835 SMI character device driver. + +SMI or secondary memory interface is a peripheral specific to certain Broadcom +SOCs, and is helpful for talking to things like parallel-interface displays +and NAND flashes (in fact, most things with a parallel register interface). + +This driver adds a character device which provides a user-space interface to +an instance of the SMI driver. + +Required properties: +- compatible: "brcm,bcm2835-smi-dev" +- smi_handle: a phandle to the smi node. + +Optional properties: +- None. + + diff --git a/Documentation/devicetree/bindings/misc/brcm,bcm2835-smi.txt b/Documentation/devicetree/bindings/misc/brcm,bcm2835-smi.txt new file mode 100644 index 0000000000000000000000000000000000000000..b76dc694f1ac0b8044000ae54d312c803b1ef6f7 --- /dev/null +++ b/Documentation/devicetree/bindings/misc/brcm,bcm2835-smi.txt @@ -0,0 +1,48 @@ +* Broadcom BCM2835 SMI driver. + +SMI or secondary memory interface is a peripheral specific to certain Broadcom +SOCs, and is helpful for talking to things like parallel-interface displays +and NAND flashes (in fact, most things with a parallel register interface). + +Required properties: +- compatible: "brcm,bcm2835-smi" +- reg: Should contain location and length of SMI registers and SMI clkman regs +- interrupts: *the* SMI interrupt. +- pinctrl-names: should be "default". +- pinctrl-0: the phandle of the gpio pin node. +- brcm,smi-clock-source: the clock source for clkman +- brcm,smi-clock-divisor: the integer clock divisor for clkman +- dmas: the dma controller phandle and the DREQ number (4 on a 2835) +- dma-names: the name used by the driver to request its channel. + Should be "rx-tx". + +Optional properties: +- None. + +Examples: + +8 data pin configuration: + +smi: smi@7e600000 { + compatible = "brcm,bcm2835-smi"; + reg = <0x7e600000 0x44>, <0x7e1010b0 0x8>; + interrupts = <2 16>; + pinctrl-names = "default"; + pinctrl-0 = <&smi_pins>; + brcm,smi-clock-source = <6>; + brcm,smi-clock-divisor = <4>; + dmas = <&dma 4>; + dma-names = "rx-tx"; + + status = "okay"; +}; + +smi_pins: smi_pins { + brcm,pins = <2 3 4 5 6 7 8 9 10 11 12 13 14 15>; + /* Alt 1: SMI */ + brcm,function = <5 5 5 5 5 5 5 5 5 5 5 5 5 5>; + /* /CS, /WE and /OE are pulled high, as they are + generally active low signals */ + brcm,pull = <2 2 2 2 2 2 0 0 0 0 0 0 0 0>; +}; + diff --git a/drivers/char/broadcom/Kconfig b/drivers/char/broadcom/Kconfig index ede8b5ca7aa1012507aa2006e89b5c47ea267351..87ea29bb65f98375e7326d9da74161fea5869514 100644 --- a/drivers/char/broadcom/Kconfig +++ b/drivers/char/broadcom/Kconfig @@ -34,3 +34,11 @@ config BCM2835_DEVGPIOMEM on the 2835. Calling mmap(/dev/gpiomem) will map the GPIO register page to the user's pointer. +config BCM2835_SMI_DEV + tristate "Character device driver for BCM2835 Secondary Memory Interface" + depends on BCM2835_SMI + default m + help + This driver provides a character device interface (ioctl + read/write) to + Broadcom's Secondary Memory interface. The low-level functionality is provided + by the SMI driver itself. diff --git a/drivers/char/broadcom/Makefile b/drivers/char/broadcom/Makefile index 187a0b02f189669d751964df5275eb21827b0440..d0ad04f8e49815e626814fd0375a24b8c1232dca 100644 --- a/drivers/char/broadcom/Makefile +++ b/drivers/char/broadcom/Makefile @@ -2,4 +2,4 @@ obj-$(CONFIG_BCM2708_VCMEM) += vc_mem.o obj-$(CONFIG_BCM_VC_SM) += vc_sm/ obj-$(CONFIG_BCM2835_DEVGPIOMEM)+= bcm2835-gpiomem.o - +obj-$(CONFIG_BCM2835_SMI_DEV) += bcm2835_smi_dev.o diff --git a/drivers/char/broadcom/bcm2835_smi_dev.c b/drivers/char/broadcom/bcm2835_smi_dev.c new file mode 100644 index 0000000000000000000000000000000000000000..d6efd92fdfe46df5cfe219d2123e0dff23dc5ab7 --- /dev/null +++ b/drivers/char/broadcom/bcm2835_smi_dev.c @@ -0,0 +1,402 @@ +/** + * Character device driver for Broadcom Secondary Memory Interface + * + * Written by Luke Wren + * Copyright (c) 2015, Raspberry Pi (Trading) Ltd. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The names of the above-listed copyright holders may not be used + * to endorse or promote products derived from this software without + * specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2, as published by the Free + * Software Foundation. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS + * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#define DEVICE_NAME "bcm2835-smi-dev" +#define DRIVER_NAME "smi-dev-bcm2835" +#define DEVICE_MINOR 0 + +static struct cdev bcm2835_smi_cdev; +static dev_t bcm2835_smi_devid; +static struct class *bcm2835_smi_class; +static struct device *bcm2835_smi_dev; + +struct bcm2835_smi_dev_instance { + struct device *dev; +}; + +static struct bcm2835_smi_instance *smi_inst; +static struct bcm2835_smi_dev_instance *inst; + +static const char *const ioctl_names[] = { + "READ_SETTINGS", + "WRITE_SETTINGS", + "ADDRESS" +}; + +/**************************************************************************** +* +* SMI chardev file ops +* +***************************************************************************/ +static long +bcm2835_smi_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + long ret = 0; + + dev_info(inst->dev, "serving ioctl..."); + + switch (cmd) { + case BCM2835_SMI_IOC_GET_SETTINGS:{ + struct smi_settings *settings; + + dev_info(inst->dev, "Reading SMI settings to user."); + settings = bcm2835_smi_get_settings_from_regs(smi_inst); + if (copy_to_user((void *)arg, settings, + sizeof(struct smi_settings))) + dev_err(inst->dev, "settings copy failed."); + break; + } + case BCM2835_SMI_IOC_WRITE_SETTINGS:{ + struct smi_settings *settings; + + dev_info(inst->dev, "Setting user's SMI settings."); + settings = bcm2835_smi_get_settings_from_regs(smi_inst); + if (copy_from_user(settings, (void *)arg, + sizeof(struct smi_settings))) + dev_err(inst->dev, "settings copy failed."); + else + bcm2835_smi_set_regs_from_settings(smi_inst); + break; + } + case BCM2835_SMI_IOC_ADDRESS: + dev_info(inst->dev, "SMI address set: 0x%02x", (int)arg); + bcm2835_smi_set_address(smi_inst, arg); + break; + default: + dev_err(inst->dev, "invalid ioctl cmd: %d", cmd); + ret = -ENOTTY; + break; + } + + return ret; +} + +static int bcm2835_smi_open(struct inode *inode, struct file *file) +{ + int dev = iminor(inode); + + dev_dbg(inst->dev, "SMI device opened."); + + if (dev != DEVICE_MINOR) { + dev_err(inst->dev, + "bcm2835_smi_release: Unknown minor device: %d", + dev); + return -ENXIO; + } + + return 0; +} + +static int bcm2835_smi_release(struct inode *inode, struct file *file) +{ + int dev = iminor(inode); + + if (dev != DEVICE_MINOR) { + dev_err(inst->dev, + "bcm2835_smi_release: Unknown minor device %d", dev); + return -ENXIO; + } + + return 0; +} + +static ssize_t dma_bounce_user( + enum dma_transfer_direction dma_dir, + char __user *user_ptr, + size_t count, + struct bcm2835_smi_bounce_info *bounce) +{ + int chunk_size; + int chunk_no = 0; + int count_left = count; + + while (count_left) { + int rv; + void *buf; + + /* Wait for current chunk to complete: */ + if (down_timeout(&bounce->callback_sem, + msecs_to_jiffies(1000))) { + dev_err(inst->dev, "DMA bounce timed out"); + count -= (count_left); + break; + } + + if (bounce->callback_sem.count >= DMA_BOUNCE_BUFFER_COUNT - 1) + dev_err(inst->dev, "WARNING: Ring buffer overflow"); + chunk_size = count_left > DMA_BOUNCE_BUFFER_SIZE ? + DMA_BOUNCE_BUFFER_SIZE : count_left; + buf = bounce->buffer[chunk_no % DMA_BOUNCE_BUFFER_COUNT]; + if (dma_dir == DMA_DEV_TO_MEM) + rv = copy_to_user(user_ptr, buf, chunk_size); + else + rv = copy_from_user(buf, user_ptr, chunk_size); + if (rv) + dev_err(inst->dev, "copy_*_user() failed!: %d", rv); + user_ptr += chunk_size; + count_left -= chunk_size; + chunk_no++; + } + return count; +} + +static ssize_t +bcm2835_read_file(struct file *f, char __user *user_ptr, + size_t count, loff_t *offs) +{ + int odd_bytes; + + dev_dbg(inst->dev, "User reading %d bytes from SMI.", count); + /* We don't want to DMA a number of bytes % 4 != 0 (32 bit FIFO) */ + if (count > DMA_THRESHOLD_BYTES) + odd_bytes = count & 0x3; + else + odd_bytes = count; + count -= odd_bytes; + if (count) { + struct bcm2835_smi_bounce_info *bounce; + + count = bcm2835_smi_user_dma(smi_inst, + DMA_DEV_TO_MEM, user_ptr, count, + &bounce); + if (count) + count = dma_bounce_user(DMA_DEV_TO_MEM, user_ptr, + count, bounce); + } + if (odd_bytes) { + /* Read from FIFO directly if not using DMA */ + uint8_t buf[DMA_THRESHOLD_BYTES]; + + bcm2835_smi_read_buf(smi_inst, buf, odd_bytes); + if (copy_to_user(user_ptr, buf, odd_bytes)) + dev_err(inst->dev, "copy_to_user() failed."); + count += odd_bytes; + + } + return count; +} + +static ssize_t +bcm2835_write_file(struct file *f, const char __user *user_ptr, + size_t count, loff_t *offs) +{ + int odd_bytes; + + dev_dbg(inst->dev, "User writing %d bytes to SMI.", count); + if (count > DMA_THRESHOLD_BYTES) + odd_bytes = count & 0x3; + else + odd_bytes = count; + count -= odd_bytes; + if (count) { + struct bcm2835_smi_bounce_info *bounce; + + count = bcm2835_smi_user_dma(smi_inst, + DMA_MEM_TO_DEV, (char __user *)user_ptr, count, + &bounce); + if (count) + count = dma_bounce_user(DMA_MEM_TO_DEV, + (char __user *)user_ptr, + count, bounce); + } + if (odd_bytes) { + uint8_t buf[DMA_THRESHOLD_BYTES]; + + if (copy_from_user(buf, user_ptr, odd_bytes)) + dev_err(inst->dev, "copy_from_user() failed."); + else + bcm2835_smi_write_buf(smi_inst, buf, odd_bytes); + count += odd_bytes; + } + return count; +} + +static const struct file_operations +bcm2835_smi_fops = { + .owner = THIS_MODULE, + .unlocked_ioctl = bcm2835_smi_ioctl, + .open = bcm2835_smi_open, + .release = bcm2835_smi_release, + .read = bcm2835_read_file, + .write = bcm2835_write_file, +}; + + +/**************************************************************************** +* +* bcm2835_smi_probe - called when the driver is loaded. +* +***************************************************************************/ + +static int bcm2835_smi_dev_probe(struct platform_device *pdev) +{ + int err; + void *ptr_err; + struct device *dev = &pdev->dev; + struct device_node *node = dev->of_node, *smi_node; + + if (!node) { + dev_err(dev, "No device tree node supplied!"); + return -EINVAL; + } + + smi_node = of_parse_phandle(node, "smi_handle", 0); + + if (!smi_node) { + dev_err(dev, "No such property: smi_handle"); + return -ENXIO; + } + + smi_inst = bcm2835_smi_get(smi_node); + + if (!smi_inst) + return -EPROBE_DEFER; + + /* Allocate buffers and instance data */ + + inst = devm_kzalloc(dev, sizeof(*inst), GFP_KERNEL); + + if (!inst) + return -ENOMEM; + + inst->dev = dev; + + /* Create character device entries */ + + err = alloc_chrdev_region(&bcm2835_smi_devid, + DEVICE_MINOR, 1, DEVICE_NAME); + if (err != 0) { + dev_err(inst->dev, "unable to allocate device number"); + return -ENOMEM; + } + cdev_init(&bcm2835_smi_cdev, &bcm2835_smi_fops); + bcm2835_smi_cdev.owner = THIS_MODULE; + err = cdev_add(&bcm2835_smi_cdev, bcm2835_smi_devid, 1); + if (err != 0) { + dev_err(inst->dev, "unable to register device"); + err = -ENOMEM; + goto failed_cdev_add; + } + + /* Create sysfs entries */ + + bcm2835_smi_class = class_create(THIS_MODULE, DEVICE_NAME); + ptr_err = bcm2835_smi_class; + if (IS_ERR(ptr_err)) + goto failed_class_create; + + bcm2835_smi_dev = device_create(bcm2835_smi_class, NULL, + bcm2835_smi_devid, NULL, + "smi"); + ptr_err = bcm2835_smi_dev; + if (IS_ERR(ptr_err)) + goto failed_device_create; + + dev_info(inst->dev, "initialised"); + + return 0; + +failed_device_create: + class_destroy(bcm2835_smi_class); +failed_class_create: + cdev_del(&bcm2835_smi_cdev); + err = PTR_ERR(ptr_err); +failed_cdev_add: + unregister_chrdev_region(bcm2835_smi_devid, 1); + dev_err(dev, "could not load bcm2835_smi_dev"); + return err; +} + +/**************************************************************************** +* +* bcm2835_smi_remove - called when the driver is unloaded. +* +***************************************************************************/ + +static int bcm2835_smi_dev_remove(struct platform_device *pdev) +{ + device_destroy(bcm2835_smi_class, bcm2835_smi_devid); + class_destroy(bcm2835_smi_class); + cdev_del(&bcm2835_smi_cdev); + unregister_chrdev_region(bcm2835_smi_devid, 1); + + dev_info(inst->dev, "SMI character dev removed - OK"); + return 0; +} + +/**************************************************************************** +* +* Register the driver with device tree +* +***************************************************************************/ + +static const struct of_device_id bcm2835_smi_dev_of_match[] = { + {.compatible = "brcm,bcm2835-smi-dev",}, + { /* sentinel */ }, +}; + +MODULE_DEVICE_TABLE(of, bcm2835_smi_dev_of_match); + +static struct platform_driver bcm2835_smi_dev_driver = { + .probe = bcm2835_smi_dev_probe, + .remove = bcm2835_smi_dev_remove, + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + .of_match_table = bcm2835_smi_dev_of_match, + }, +}; + +module_platform_driver(bcm2835_smi_dev_driver); + +MODULE_ALIAS("platform:smi-dev-bcm2835"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION( + "Character device driver for BCM2835's secondary memory interface"); +MODULE_AUTHOR("Luke Wren "); diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index c290990d73edf87ece9b179ac3d845eef27531e9..a1594b7ca53bca17a9c2ca3a66ba14cb9de21e37 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -10,6 +10,14 @@ config SENSORS_LIS3LV02D select INPUT_POLLDEV default n +config BCM2835_SMI + tristate "Broadcom 283x Secondary Memory Interface driver" + depends on ARCH_BCM2835 + default m + help + Driver for enabling and using Broadcom's Secondary/Slow Memory Interface. + Appears as /dev/bcm2835_smi. For ioctl interface see drivers/misc/bcm2835_smi.h + config AD525X_DPOT tristate "Analog Devices Digital Potentiometers" depends on (I2C || SPI) && SYSFS diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index 7a3ea89339b4d07c34289a539c4f9bd2f12d2aff..7323ce864f409213c3187dcfc3118335149d2989 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -9,6 +9,7 @@ obj-$(CONFIG_AD525X_DPOT_SPI) += ad525x_dpot-spi.o obj-$(CONFIG_INTEL_MID_PTI) += pti.o obj-$(CONFIG_ATMEL_SSC) += atmel-ssc.o obj-$(CONFIG_ATMEL_TCLIB) += atmel_tclib.o +obj-$(CONFIG_BCM2835_SMI) += bcm2835_smi.o obj-$(CONFIG_DUMMY_IRQ) += dummy-irq.o obj-$(CONFIG_ICS932S401) += ics932s401.o obj-$(CONFIG_LKDTM) += lkdtm.o diff --git a/drivers/misc/bcm2835_smi.c b/drivers/misc/bcm2835_smi.c new file mode 100644 index 0000000000000000000000000000000000000000..63a4ea08b9930a3a31a985f0a1d969b488ed49ec --- /dev/null +++ b/drivers/misc/bcm2835_smi.c @@ -0,0 +1,985 @@ +/** + * Broadcom Secondary Memory Interface driver + * + * Written by Luke Wren + * Copyright (c) 2015, Raspberry Pi (Trading) Ltd. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The names of the above-listed copyright holders may not be used + * to endorse or promote products derived from this software without + * specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2, as published by the Free + * Software Foundation. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS + * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define BCM2835_SMI_IMPLEMENTATION +#include + +#define DRIVER_NAME "smi-bcm2835" + +#define N_PAGES_FROM_BYTES(n) ((n + PAGE_SIZE-1) / PAGE_SIZE) + +#define DMA_WRITE_TO_MEM true +#define DMA_READ_FROM_MEM false + +struct bcm2835_smi_instance { + struct device *dev; + struct smi_settings settings; + __iomem void *smi_regs_ptr, *cm_smi_regs_ptr; + dma_addr_t smi_regs_busaddr; + + struct dma_chan *dma_chan; + struct dma_slave_config dma_config; + + struct bcm2835_smi_bounce_info bounce; + + struct scatterlist buffer_sgl; + + int clock_source; + int clock_divisor; + + /* Sometimes we are called into in an atomic context (e.g. by + JFFS2 + MTD) so we can't use a mutex */ + spinlock_t transaction_lock; +}; + +/**************************************************************************** +* +* SMI clock manager setup +* +***************************************************************************/ + +static inline void write_smi_cm_reg(struct bcm2835_smi_instance *inst, + u32 val, unsigned reg) +{ + writel(CM_PWD | val, inst->cm_smi_regs_ptr + reg); +} + +static inline u32 read_smi_cm_reg(struct bcm2835_smi_instance *inst, + unsigned reg) +{ + return readl(inst->cm_smi_regs_ptr + reg); +} + +static void smi_setup_clock(struct bcm2835_smi_instance *inst) +{ + dev_dbg(inst->dev, "Setting up clock..."); + /* Disable SMI clock and wait for it to stop. */ + write_smi_cm_reg(inst, 0, CM_SMI_CTL); + while (read_smi_cm_reg(inst, CM_SMI_CTL) & CM_SMI_CTL_BUSY) + ; + + write_smi_cm_reg(inst, (inst->clock_divisor << CM_SMI_DIV_DIVI_OFFS), + CM_SMI_DIV); + write_smi_cm_reg(inst, (inst->clock_source << CM_SMI_CTL_SRC_OFFS), + CM_SMI_CTL); + + /* Enable the clock */ + write_smi_cm_reg(inst, (inst->clock_source << CM_SMI_CTL_SRC_OFFS) | + CM_SMI_CTL_ENAB, CM_SMI_CTL); +} + +/**************************************************************************** +* +* SMI peripheral setup +* +***************************************************************************/ + +static inline void write_smi_reg(struct bcm2835_smi_instance *inst, + u32 val, unsigned reg) +{ + writel(val, inst->smi_regs_ptr + reg); +} + +static inline u32 read_smi_reg(struct bcm2835_smi_instance *inst, unsigned reg) +{ + return readl(inst->smi_regs_ptr + reg); +} + +/* Token-paste macro for e.g SMIDSR_RSTROBE -> value of SMIDSR_RSTROBE_MASK */ +#define _CONCAT(x, y) x##y +#define CONCAT(x, y) _CONCAT(x, y) + +#define SET_BIT_FIELD(dest, field, bits) ((dest) = \ + ((dest) & ~CONCAT(field, _MASK)) | (((bits) << CONCAT(field, _OFFS))& \ + CONCAT(field, _MASK))) +#define GET_BIT_FIELD(src, field) (((src) & \ + CONCAT(field, _MASK)) >> CONCAT(field, _OFFS)) + +static void smi_dump_context_labelled(struct bcm2835_smi_instance *inst, + const char *label) +{ + dev_err(inst->dev, "SMI context dump: %s", label); + dev_err(inst->dev, "SMICS: 0x%08x", read_smi_reg(inst, SMICS)); + dev_err(inst->dev, "SMIL: 0x%08x", read_smi_reg(inst, SMIL)); + dev_err(inst->dev, "SMIDSR: 0x%08x", read_smi_reg(inst, SMIDSR0)); + dev_err(inst->dev, "SMIDSW: 0x%08x", read_smi_reg(inst, SMIDSW0)); + dev_err(inst->dev, "SMIDC: 0x%08x", read_smi_reg(inst, SMIDC)); + dev_err(inst->dev, "SMIFD: 0x%08x", read_smi_reg(inst, SMIFD)); + dev_err(inst->dev, " "); +} + +static inline void smi_dump_context(struct bcm2835_smi_instance *inst) +{ + smi_dump_context_labelled(inst, ""); +} + +static void smi_get_default_settings(struct bcm2835_smi_instance *inst) +{ + struct smi_settings *settings = &inst->settings; + + settings->data_width = SMI_WIDTH_16BIT; + settings->pack_data = true; + + settings->read_setup_time = 1; + settings->read_hold_time = 1; + settings->read_pace_time = 1; + settings->read_strobe_time = 3; + + settings->write_setup_time = settings->read_setup_time; + settings->write_hold_time = settings->read_hold_time; + settings->write_pace_time = settings->read_pace_time; + settings->write_strobe_time = settings->read_strobe_time; + + settings->dma_enable = true; + settings->dma_passthrough_enable = false; + settings->dma_read_thresh = 0x01; + settings->dma_write_thresh = 0x3f; + settings->dma_panic_read_thresh = 0x20; + settings->dma_panic_write_thresh = 0x20; +} + +void bcm2835_smi_set_regs_from_settings(struct bcm2835_smi_instance *inst) +{ + struct smi_settings *settings = &inst->settings; + int smidsr_temp = 0, smidsw_temp = 0, smics_temp, + smidcs_temp, smidc_temp = 0; + + spin_lock(&inst->transaction_lock); + + /* temporarily disable the peripheral: */ + smics_temp = read_smi_reg(inst, SMICS); + write_smi_reg(inst, 0, SMICS); + smidcs_temp = read_smi_reg(inst, SMIDCS); + write_smi_reg(inst, 0, SMIDCS); + + if (settings->pack_data) + smics_temp |= SMICS_PXLDAT; + else + smics_temp &= ~SMICS_PXLDAT; + + SET_BIT_FIELD(smidsr_temp, SMIDSR_RWIDTH, settings->data_width); + SET_BIT_FIELD(smidsr_temp, SMIDSR_RSETUP, settings->read_setup_time); + SET_BIT_FIELD(smidsr_temp, SMIDSR_RHOLD, settings->read_hold_time); + SET_BIT_FIELD(smidsr_temp, SMIDSR_RPACE, settings->read_pace_time); + SET_BIT_FIELD(smidsr_temp, SMIDSR_RSTROBE, settings->read_strobe_time); + write_smi_reg(inst, smidsr_temp, SMIDSR0); + + SET_BIT_FIELD(smidsw_temp, SMIDSW_WWIDTH, settings->data_width); + if (settings->data_width == SMI_WIDTH_8BIT) + smidsw_temp |= SMIDSW_WSWAP; + else + smidsw_temp &= ~SMIDSW_WSWAP; + SET_BIT_FIELD(smidsw_temp, SMIDSW_WSETUP, settings->write_setup_time); + SET_BIT_FIELD(smidsw_temp, SMIDSW_WHOLD, settings->write_hold_time); + SET_BIT_FIELD(smidsw_temp, SMIDSW_WPACE, settings->write_pace_time); + SET_BIT_FIELD(smidsw_temp, SMIDSW_WSTROBE, + settings->write_strobe_time); + write_smi_reg(inst, smidsw_temp, SMIDSW0); + + SET_BIT_FIELD(smidc_temp, SMIDC_REQR, settings->dma_read_thresh); + SET_BIT_FIELD(smidc_temp, SMIDC_REQW, settings->dma_write_thresh); + SET_BIT_FIELD(smidc_temp, SMIDC_PANICR, + settings->dma_panic_read_thresh); + SET_BIT_FIELD(smidc_temp, SMIDC_PANICW, + settings->dma_panic_write_thresh); + if (settings->dma_passthrough_enable) { + smidc_temp |= SMIDC_DMAP; + smidsr_temp |= SMIDSR_RDREQ; + write_smi_reg(inst, smidsr_temp, SMIDSR0); + smidsw_temp |= SMIDSW_WDREQ; + write_smi_reg(inst, smidsw_temp, SMIDSW0); + } else + smidc_temp &= ~SMIDC_DMAP; + if (settings->dma_enable) + smidc_temp |= SMIDC_DMAEN; + else + smidc_temp &= ~SMIDC_DMAEN; + + write_smi_reg(inst, smidc_temp, SMIDC); + + /* re-enable (if was previously enabled) */ + write_smi_reg(inst, smics_temp, SMICS); + write_smi_reg(inst, smidcs_temp, SMIDCS); + + spin_unlock(&inst->transaction_lock); +} +EXPORT_SYMBOL(bcm2835_smi_set_regs_from_settings); + +struct smi_settings *bcm2835_smi_get_settings_from_regs + (struct bcm2835_smi_instance *inst) +{ + struct smi_settings *settings = &inst->settings; + int smidsr, smidsw, smidc; + + spin_lock(&inst->transaction_lock); + + smidsr = read_smi_reg(inst, SMIDSR0); + smidsw = read_smi_reg(inst, SMIDSW0); + smidc = read_smi_reg(inst, SMIDC); + + settings->pack_data = (read_smi_reg(inst, SMICS) & SMICS_PXLDAT) ? + true : false; + + settings->data_width = GET_BIT_FIELD(smidsr, SMIDSR_RWIDTH); + settings->read_setup_time = GET_BIT_FIELD(smidsr, SMIDSR_RSETUP); + settings->read_hold_time = GET_BIT_FIELD(smidsr, SMIDSR_RHOLD); + settings->read_pace_time = GET_BIT_FIELD(smidsr, SMIDSR_RPACE); + settings->read_strobe_time = GET_BIT_FIELD(smidsr, SMIDSR_RSTROBE); + + settings->write_setup_time = GET_BIT_FIELD(smidsw, SMIDSW_WSETUP); + settings->write_hold_time = GET_BIT_FIELD(smidsw, SMIDSW_WHOLD); + settings->write_pace_time = GET_BIT_FIELD(smidsw, SMIDSW_WPACE); + settings->write_strobe_time = GET_BIT_FIELD(smidsw, SMIDSW_WSTROBE); + + settings->dma_read_thresh = GET_BIT_FIELD(smidc, SMIDC_REQR); + settings->dma_write_thresh = GET_BIT_FIELD(smidc, SMIDC_REQW); + settings->dma_panic_read_thresh = GET_BIT_FIELD(smidc, SMIDC_PANICR); + settings->dma_panic_write_thresh = GET_BIT_FIELD(smidc, SMIDC_PANICW); + settings->dma_passthrough_enable = (smidc & SMIDC_DMAP) ? true : false; + settings->dma_enable = (smidc & SMIDC_DMAEN) ? true : false; + + spin_unlock(&inst->transaction_lock); + + return settings; +} +EXPORT_SYMBOL(bcm2835_smi_get_settings_from_regs); + +static inline void smi_set_address(struct bcm2835_smi_instance *inst, + unsigned int address) +{ + int smia_temp = 0, smida_temp = 0; + + SET_BIT_FIELD(smia_temp, SMIA_ADDR, address); + SET_BIT_FIELD(smida_temp, SMIDA_ADDR, address); + + /* Write to both address registers - user doesn't care whether we're + doing programmed or direct transfers. */ + write_smi_reg(inst, smia_temp, SMIA); + write_smi_reg(inst, smida_temp, SMIDA); +} + +static void smi_setup_regs(struct bcm2835_smi_instance *inst) +{ + + dev_dbg(inst->dev, "Initialising SMI registers..."); + /* Disable the peripheral if already enabled */ + write_smi_reg(inst, 0, SMICS); + write_smi_reg(inst, 0, SMIDCS); + + smi_get_default_settings(inst); + bcm2835_smi_set_regs_from_settings(inst); + smi_set_address(inst, 0); + + write_smi_reg(inst, read_smi_reg(inst, SMICS) | SMICS_ENABLE, SMICS); + write_smi_reg(inst, read_smi_reg(inst, SMIDCS) | SMIDCS_ENABLE, + SMIDCS); +} + +/**************************************************************************** +* +* Low-level SMI access functions +* Other modules should use the exported higher-level functions e.g. +* bcm2835_smi_write_buf() unless they have a good reason to use these +* +***************************************************************************/ + +static inline uint32_t smi_read_single_word(struct bcm2835_smi_instance *inst) +{ + int timeout = 0; + + write_smi_reg(inst, SMIDCS_ENABLE, SMIDCS); + write_smi_reg(inst, SMIDCS_ENABLE | SMIDCS_START, SMIDCS); + /* Make sure things happen in the right order...*/ + mb(); + while (!(read_smi_reg(inst, SMIDCS) & SMIDCS_DONE) && + ++timeout < 10000) + ; + if (timeout < 10000) + return read_smi_reg(inst, SMIDD); + + dev_err(inst->dev, + "SMI direct read timed out (is the clock set up correctly?)"); + return 0; +} + +static inline void smi_write_single_word(struct bcm2835_smi_instance *inst, + uint32_t data) +{ + int timeout = 0; + + write_smi_reg(inst, SMIDCS_ENABLE | SMIDCS_WRITE, SMIDCS); + write_smi_reg(inst, data, SMIDD); + write_smi_reg(inst, SMIDCS_ENABLE | SMIDCS_WRITE | SMIDCS_START, + SMIDCS); + + while (!(read_smi_reg(inst, SMIDCS) & SMIDCS_DONE) && + ++timeout < 10000) + ; + if (timeout >= 10000) + dev_err(inst->dev, + "SMI direct write timed out (is the clock set up correctly?)"); +} + +/* Initiates a programmed read into the read FIFO. It is up to the caller to + * read data from the FIFO - either via paced DMA transfer, + * or polling SMICS_RXD to check whether data is available. + * SMICS_ACTIVE will go low upon completion. */ +static void smi_init_programmed_read(struct bcm2835_smi_instance *inst, + int num_transfers) +{ + int smics_temp; + + /* Disable the peripheral: */ + smics_temp = read_smi_reg(inst, SMICS) & ~(SMICS_ENABLE | SMICS_WRITE); + write_smi_reg(inst, smics_temp, SMICS); + while (read_smi_reg(inst, SMICS) & SMICS_ENABLE) + ; + + /* Program the transfer count: */ + write_smi_reg(inst, num_transfers, SMIL); + + /* re-enable and start: */ + smics_temp |= SMICS_ENABLE; + write_smi_reg(inst, smics_temp, SMICS); + smics_temp |= SMICS_CLEAR; + /* Just to be certain: */ + mb(); + while (read_smi_reg(inst, SMICS) & SMICS_ACTIVE) + ; + write_smi_reg(inst, smics_temp, SMICS); + smics_temp |= SMICS_START; + write_smi_reg(inst, smics_temp, SMICS); +} + +/* Initiates a programmed write sequence, using data from the write FIFO. + * It is up to the caller to initiate a DMA transfer before calling, + * or use another method to keep the write FIFO topped up. + * SMICS_ACTIVE will go low upon completion. + */ +static void smi_init_programmed_write(struct bcm2835_smi_instance *inst, + int num_transfers) +{ + int smics_temp; + + /* Disable the peripheral: */ + smics_temp = read_smi_reg(inst, SMICS) & ~SMICS_ENABLE; + write_smi_reg(inst, smics_temp, SMICS); + while (read_smi_reg(inst, SMICS) & SMICS_ENABLE) + ; + + /* Program the transfer count: */ + write_smi_reg(inst, num_transfers, SMIL); + + /* setup, re-enable and start: */ + smics_temp |= SMICS_WRITE | SMICS_ENABLE; + write_smi_reg(inst, smics_temp, SMICS); + smics_temp |= SMICS_START; + write_smi_reg(inst, smics_temp, SMICS); +} + +/* Initiate a read and then poll FIFO for data, reading out as it appears. */ +static void smi_read_fifo(struct bcm2835_smi_instance *inst, + uint32_t *dest, int n_bytes) +{ + if (read_smi_reg(inst, SMICS) & SMICS_RXD) { + smi_dump_context_labelled(inst, + "WARNING: read FIFO not empty at start of read call."); + while (read_smi_reg(inst, SMICS)) + ; + } + + /* Dispatch the read: */ + if (inst->settings.data_width == SMI_WIDTH_8BIT) + smi_init_programmed_read(inst, n_bytes); + else if (inst->settings.data_width == SMI_WIDTH_16BIT) + smi_init_programmed_read(inst, n_bytes / 2); + else { + dev_err(inst->dev, "Unsupported data width for read."); + return; + } + + /* Poll FIFO to keep it empty */ + while (!(read_smi_reg(inst, SMICS) & SMICS_DONE)) + if (read_smi_reg(inst, SMICS) & SMICS_RXD) + *dest++ = read_smi_reg(inst, SMID); + + /* Ensure that the FIFO is emptied */ + if (read_smi_reg(inst, SMICS) & SMICS_RXD) { + int fifo_count; + + fifo_count = GET_BIT_FIELD(read_smi_reg(inst, SMIFD), + SMIFD_FCNT); + while (fifo_count--) + *dest++ = read_smi_reg(inst, SMID); + } + + if (!(read_smi_reg(inst, SMICS) & SMICS_DONE)) + smi_dump_context_labelled(inst, + "WARNING: transaction finished but done bit not set."); + + if (read_smi_reg(inst, SMICS) & SMICS_RXD) + smi_dump_context_labelled(inst, + "WARNING: read FIFO not empty at end of read call."); + +} + +/* Initiate a write, and then keep the FIFO topped up. */ +static void smi_write_fifo(struct bcm2835_smi_instance *inst, + uint32_t *src, int n_bytes) +{ + int i, timeout = 0; + + /* Empty FIFOs if not already so */ + if (!(read_smi_reg(inst, SMICS) & SMICS_TXE)) { + smi_dump_context_labelled(inst, + "WARNING: write fifo not empty at start of write call."); + write_smi_reg(inst, read_smi_reg(inst, SMICS) | SMICS_CLEAR, + SMICS); + } + + /* Initiate the transfer */ + if (inst->settings.data_width == SMI_WIDTH_8BIT) + smi_init_programmed_write(inst, n_bytes); + else if (inst->settings.data_width == SMI_WIDTH_16BIT) + smi_init_programmed_write(inst, n_bytes / 2); + else { + dev_err(inst->dev, "Unsupported data width for write."); + return; + } + /* Fill the FIFO: */ + for (i = 0; i < (n_bytes - 1) / 4 + 1; ++i) { + while (!(read_smi_reg(inst, SMICS) & SMICS_TXD)) + ; + write_smi_reg(inst, *src++, SMID); + } + /* Busy wait... */ + while (!(read_smi_reg(inst, SMICS) & SMICS_DONE) && ++timeout < + 1000000) + ; + if (timeout >= 1000000) + smi_dump_context_labelled(inst, + "Timed out on write operation!"); + if (!(read_smi_reg(inst, SMICS) & SMICS_TXE)) + smi_dump_context_labelled(inst, + "WARNING: FIFO not empty at end of write operation."); +} + +/**************************************************************************** +* +* SMI DMA operations +* +***************************************************************************/ + +/* Disable SMI and put it into the correct direction before doing DMA setup. + Stops spurious DREQs during setup. Peripheral is re-enabled by init_*() */ +static void smi_disable(struct bcm2835_smi_instance *inst, + enum dma_transfer_direction direction) +{ + int smics_temp = read_smi_reg(inst, SMICS) & ~SMICS_ENABLE; + + if (direction == DMA_DEV_TO_MEM) + smics_temp &= ~SMICS_WRITE; + else + smics_temp |= SMICS_WRITE; + write_smi_reg(inst, smics_temp, SMICS); + while (read_smi_reg(inst, SMICS) & SMICS_ACTIVE) + ; +} + +static struct scatterlist *smi_scatterlist_from_buffer( + struct bcm2835_smi_instance *inst, + dma_addr_t buf, + size_t len, + struct scatterlist *sg) +{ + sg_init_table(sg, 1); + sg_dma_address(sg) = buf; + sg_dma_len(sg) = len; + return sg; +} + +static void smi_dma_callback_user_copy(void *param) +{ + /* Notify the bottom half that a chunk is ready for user copy */ + struct bcm2835_smi_instance *inst = + (struct bcm2835_smi_instance *)param; + + up(&inst->bounce.callback_sem); +} + +/* Creates a descriptor, assigns the given callback, and submits the + descriptor to dmaengine. Does not block - can queue up multiple + descriptors and then wait for them all to complete. + sg_len is the number of control blocks, NOT the number of bytes. + dir can be DMA_MEM_TO_DEV or DMA_DEV_TO_MEM. + callback can be NULL - in this case it is not called. */ +static inline struct dma_async_tx_descriptor *smi_dma_submit_sgl( + struct bcm2835_smi_instance *inst, + struct scatterlist *sgl, + size_t sg_len, + enum dma_transfer_direction dir, + dma_async_tx_callback callback) +{ + struct dma_async_tx_descriptor *desc; + + desc = dmaengine_prep_slave_sg(inst->dma_chan, + sgl, + sg_len, + dir, + DMA_PREP_INTERRUPT | DMA_CTRL_ACK | + DMA_PREP_FENCE); + if (!desc) { + dev_err(inst->dev, "read_sgl: dma slave preparation failed!"); + write_smi_reg(inst, read_smi_reg(inst, SMICS) & ~SMICS_ACTIVE, + SMICS); + while (read_smi_reg(inst, SMICS) & SMICS_ACTIVE) + cpu_relax(); + write_smi_reg(inst, read_smi_reg(inst, SMICS) | SMICS_ACTIVE, + SMICS); + return NULL; + } + desc->callback = callback; + desc->callback_param = inst; + if (dmaengine_submit(desc) < 0) + return NULL; + return desc; +} + +/* NB this function blocks until the transfer is complete */ +static void +smi_dma_read_sgl(struct bcm2835_smi_instance *inst, + struct scatterlist *sgl, size_t sg_len, size_t n_bytes) +{ + struct dma_async_tx_descriptor *desc; + + /* Disable SMI and set to read before dispatching DMA - if SMI is in + * write mode and TX fifo is empty, it will generate a DREQ which may + * cause the read DMA to complete before the SMI read command is even + * dispatched! We want to dispatch DMA before SMI read so that reading + * is gapless, for logic analyser. + */ + + smi_disable(inst, DMA_DEV_TO_MEM); + + desc = smi_dma_submit_sgl(inst, sgl, sg_len, DMA_DEV_TO_MEM, NULL); + dma_async_issue_pending(inst->dma_chan); + + if (inst->settings.data_width == SMI_WIDTH_8BIT) + smi_init_programmed_read(inst, n_bytes); + else + smi_init_programmed_read(inst, n_bytes / 2); + + if (dma_wait_for_async_tx(desc) == DMA_ERROR) + smi_dump_context_labelled(inst, "DMA timeout!"); +} + +static void +smi_dma_write_sgl(struct bcm2835_smi_instance *inst, + struct scatterlist *sgl, size_t sg_len, size_t n_bytes) +{ + struct dma_async_tx_descriptor *desc; + + if (inst->settings.data_width == SMI_WIDTH_8BIT) + smi_init_programmed_write(inst, n_bytes); + else + smi_init_programmed_write(inst, n_bytes / 2); + + desc = smi_dma_submit_sgl(inst, sgl, sg_len, DMA_MEM_TO_DEV, NULL); + dma_async_issue_pending(inst->dma_chan); + + if (dma_wait_for_async_tx(desc) == DMA_ERROR) + smi_dump_context_labelled(inst, "DMA timeout!"); + else + /* Wait for SMI to finish our writes */ + while (!(read_smi_reg(inst, SMICS) & SMICS_DONE)) + cpu_relax(); +} + +ssize_t bcm2835_smi_user_dma( + struct bcm2835_smi_instance *inst, + enum dma_transfer_direction dma_dir, + char __user *user_ptr, size_t count, + struct bcm2835_smi_bounce_info **bounce) +{ + int chunk_no = 0, chunk_size, count_left = count; + struct scatterlist *sgl; + void (*init_trans_func)(struct bcm2835_smi_instance *, int); + + spin_lock(&inst->transaction_lock); + + if (dma_dir == DMA_DEV_TO_MEM) + init_trans_func = smi_init_programmed_read; + else + init_trans_func = smi_init_programmed_write; + + smi_disable(inst, dma_dir); + + sema_init(&inst->bounce.callback_sem, 0); + if (bounce) + *bounce = &inst->bounce; + while (count_left) { + chunk_size = count_left > DMA_BOUNCE_BUFFER_SIZE ? + DMA_BOUNCE_BUFFER_SIZE : count_left; + if (chunk_size == DMA_BOUNCE_BUFFER_SIZE) { + sgl = + &inst->bounce.sgl[chunk_no % DMA_BOUNCE_BUFFER_COUNT]; + } else { + sgl = smi_scatterlist_from_buffer( + inst, + inst->bounce.phys[ + chunk_no % DMA_BOUNCE_BUFFER_COUNT], + chunk_size, + &inst->buffer_sgl); + } + + if (!smi_dma_submit_sgl(inst, sgl, 1, dma_dir, + smi_dma_callback_user_copy + )) { + dev_err(inst->dev, "sgl submit failed"); + count = 0; + goto out; + } + count_left -= chunk_size; + chunk_no++; + } + dma_async_issue_pending(inst->dma_chan); + + if (inst->settings.data_width == SMI_WIDTH_8BIT) + init_trans_func(inst, count); + else if (inst->settings.data_width == SMI_WIDTH_16BIT) + init_trans_func(inst, count / 2); +out: + spin_unlock(&inst->transaction_lock); + return count; +} +EXPORT_SYMBOL(bcm2835_smi_user_dma); + + +/**************************************************************************** +* +* High level buffer transfer functions - for use by other drivers +* +***************************************************************************/ + +/* Buffer must be physically contiguous - i.e. kmalloc, not vmalloc! */ +void bcm2835_smi_write_buf( + struct bcm2835_smi_instance *inst, + const void *buf, size_t n_bytes) +{ + int odd_bytes = n_bytes & 0x3; + + n_bytes -= odd_bytes; + + spin_lock(&inst->transaction_lock); + + if (n_bytes > DMA_THRESHOLD_BYTES) { + dma_addr_t phy_addr = dma_map_single( + inst->dev, + (void *)buf, + n_bytes, + DMA_MEM_TO_DEV); + struct scatterlist *sgl = + smi_scatterlist_from_buffer(inst, phy_addr, n_bytes, + &inst->buffer_sgl); + + if (!sgl) { + smi_dump_context_labelled(inst, + "Error: could not create scatterlist for write!"); + goto out; + } + smi_dma_write_sgl(inst, sgl, 1, n_bytes); + + dma_unmap_single + (inst->dev, phy_addr, n_bytes, DMA_MEM_TO_DEV); + } else if (n_bytes) { + smi_write_fifo(inst, (uint32_t *) buf, n_bytes); + } + buf += n_bytes; + + if (inst->settings.data_width == SMI_WIDTH_8BIT) { + while (odd_bytes--) + smi_write_single_word(inst, *(uint8_t *) (buf++)); + } else { + while (odd_bytes >= 2) { + smi_write_single_word(inst, *(uint16_t *)buf); + buf += 2; + odd_bytes -= 2; + } + if (odd_bytes) { + /* Reading an odd number of bytes on a 16 bit bus is + a user bug. It's kinder to fail early and tell them + than to e.g. transparently give them the bottom byte + of a 16 bit transfer. */ + dev_err(inst->dev, + "WARNING: odd number of bytes specified for wide transfer."); + dev_err(inst->dev, + "At least one byte dropped as a result."); + dump_stack(); + } + } +out: + spin_unlock(&inst->transaction_lock); +} +EXPORT_SYMBOL(bcm2835_smi_write_buf); + +void bcm2835_smi_read_buf(struct bcm2835_smi_instance *inst, + void *buf, size_t n_bytes) +{ + + /* SMI is inherently 32-bit, which causes surprising amounts of mess + for bytes % 4 != 0. Easiest to avoid this mess altogether + by handling remainder separately. */ + int odd_bytes = n_bytes & 0x3; + + spin_lock(&inst->transaction_lock); + n_bytes -= odd_bytes; + if (n_bytes > DMA_THRESHOLD_BYTES) { + dma_addr_t phy_addr = dma_map_single(inst->dev, + buf, n_bytes, + DMA_DEV_TO_MEM); + struct scatterlist *sgl = smi_scatterlist_from_buffer( + inst, phy_addr, n_bytes, + &inst->buffer_sgl); + if (!sgl) { + smi_dump_context_labelled(inst, + "Error: could not create scatterlist for read!"); + goto out; + } + smi_dma_read_sgl(inst, sgl, 1, n_bytes); + dma_unmap_single(inst->dev, phy_addr, n_bytes, DMA_DEV_TO_MEM); + } else if (n_bytes) { + smi_read_fifo(inst, (uint32_t *)buf, n_bytes); + } + buf += n_bytes; + + if (inst->settings.data_width == SMI_WIDTH_8BIT) { + while (odd_bytes--) + *((uint8_t *) (buf++)) = smi_read_single_word(inst); + } else { + while (odd_bytes >= 2) { + *(uint16_t *) buf = smi_read_single_word(inst); + buf += 2; + odd_bytes -= 2; + } + if (odd_bytes) { + dev_err(inst->dev, + "WARNING: odd number of bytes specified for wide transfer."); + dev_err(inst->dev, + "At least one byte dropped as a result."); + dump_stack(); + } + } +out: + spin_unlock(&inst->transaction_lock); +} +EXPORT_SYMBOL(bcm2835_smi_read_buf); + +void bcm2835_smi_set_address(struct bcm2835_smi_instance *inst, + unsigned int address) +{ + spin_lock(&inst->transaction_lock); + smi_set_address(inst, address); + spin_unlock(&inst->transaction_lock); +} +EXPORT_SYMBOL(bcm2835_smi_set_address); + +struct bcm2835_smi_instance *bcm2835_smi_get(struct device_node *node) +{ + struct platform_device *pdev; + + if (!node) + return NULL; + + pdev = of_find_device_by_node(node); + if (!pdev) + return NULL; + + return platform_get_drvdata(pdev); +} +EXPORT_SYMBOL(bcm2835_smi_get); + +/**************************************************************************** +* +* bcm2835_smi_probe - called when the driver is loaded. +* +***************************************************************************/ + +static int bcm2835_smi_dma_setup(struct bcm2835_smi_instance *inst) +{ + int i, rv = 0; + + inst->dma_chan = dma_request_slave_channel(inst->dev, "rx-tx"); + + inst->dma_config.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + inst->dma_config.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + inst->dma_config.src_addr = inst->smi_regs_busaddr + SMID; + inst->dma_config.dst_addr = inst->dma_config.src_addr; + /* Direction unimportant - always overridden by prep_slave_sg */ + inst->dma_config.direction = DMA_DEV_TO_MEM; + dmaengine_slave_config(inst->dma_chan, &inst->dma_config); + /* Alloc and map bounce buffers */ + for (i = 0; i < DMA_BOUNCE_BUFFER_COUNT; ++i) { + inst->bounce.buffer[i] = + dmam_alloc_coherent(inst->dev, DMA_BOUNCE_BUFFER_SIZE, + &inst->bounce.phys[i], + GFP_KERNEL); + if (!inst->bounce.buffer[i]) { + dev_err(inst->dev, "Could not allocate buffer!"); + rv = -ENOMEM; + break; + } + smi_scatterlist_from_buffer( + inst, + inst->bounce.phys[i], + DMA_BOUNCE_BUFFER_SIZE, + &inst->bounce.sgl[i] + ); + } + + return rv; +} + +static int bcm2835_smi_probe(struct platform_device *pdev) +{ + int err; + struct device *dev = &pdev->dev; + struct device_node *node = dev->of_node; + struct resource *ioresource; + struct bcm2835_smi_instance *inst; + + /* Allocate buffers and instance data */ + + inst = devm_kzalloc(dev, sizeof(struct bcm2835_smi_instance), + GFP_KERNEL); + + if (!inst) + return -ENOMEM; + + inst->dev = dev; + spin_lock_init(&inst->transaction_lock); + + /* We require device tree support */ + if (!node) + return -EINVAL; + + ioresource = platform_get_resource(pdev, IORESOURCE_MEM, 0); + inst->smi_regs_ptr = devm_ioremap_resource(dev, ioresource); + ioresource = platform_get_resource(pdev, IORESOURCE_MEM, 1); + inst->cm_smi_regs_ptr = devm_ioremap_resource(dev, ioresource); + inst->smi_regs_busaddr = be32_to_cpu( + *of_get_address(node, 0, NULL, NULL)); + of_property_read_u32(node, + "brcm,smi-clock-source", + &inst->clock_source); + of_property_read_u32(node, + "brcm,smi-clock-divisor", + &inst->clock_divisor); + + err = bcm2835_smi_dma_setup(inst); + if (err) + return err; + + /* Finally, do peripheral setup */ + + smi_setup_clock(inst); + smi_setup_regs(inst); + + platform_set_drvdata(pdev, inst); + + dev_info(inst->dev, "initialised"); + + return 0; +} + +/**************************************************************************** +* +* bcm2835_smi_remove - called when the driver is unloaded. +* +***************************************************************************/ + +static int bcm2835_smi_remove(struct platform_device *pdev) +{ + struct bcm2835_smi_instance *inst = platform_get_drvdata(pdev); + struct device *dev = inst->dev; + + dev_info(dev, "SMI device removed - OK"); + return 0; +} + +/**************************************************************************** +* +* Register the driver with device tree +* +***************************************************************************/ + +static const struct of_device_id bcm2835_smi_of_match[] = { + {.compatible = "brcm,bcm2835-smi",}, + { /* sentinel */ }, +}; + +MODULE_DEVICE_TABLE(of, bcm2835_smi_of_match); + +static struct platform_driver bcm2835_smi_driver = { + .probe = bcm2835_smi_probe, + .remove = bcm2835_smi_remove, + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + .of_match_table = bcm2835_smi_of_match, + }, +}; + +module_platform_driver(bcm2835_smi_driver); + +MODULE_ALIAS("platform:smi-bcm2835"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Device driver for BCM2835's secondary memory interface"); +MODULE_AUTHOR("Luke Wren "); diff --git a/include/linux/broadcom/bcm2835_smi.h b/include/linux/broadcom/bcm2835_smi.h new file mode 100644 index 0000000000000000000000000000000000000000..ee3a75edfc033eeb0d90a687ffb68b10fd8543a3 --- /dev/null +++ b/include/linux/broadcom/bcm2835_smi.h @@ -0,0 +1,391 @@ +/** + * Declarations and definitions for Broadcom's Secondary Memory Interface + * + * Written by Luke Wren + * Copyright (c) 2015, Raspberry Pi (Trading) Ltd. + * Copyright (c) 2010-2012 Broadcom. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The names of the above-listed copyright holders may not be used + * to endorse or promote products derived from this software without + * specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2, as published by the Free + * Software Foundation. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS + * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef BCM2835_SMI_H +#define BCM2835_SMI_H + +#include + +#ifndef __KERNEL__ +#include +#include +#endif + +#define BCM2835_SMI_IOC_MAGIC 0x1 +#define BCM2835_SMI_INVALID_HANDLE (~0) + +/* IOCTLs 0x100...0x1ff are not device-specific - we can use them */ +#define BCM2835_SMI_IOC_GET_SETTINGS _IO(BCM2835_SMI_IOC_MAGIC, 0) +#define BCM2835_SMI_IOC_WRITE_SETTINGS _IO(BCM2835_SMI_IOC_MAGIC, 1) +#define BCM2835_SMI_IOC_ADDRESS _IO(BCM2835_SMI_IOC_MAGIC, 2) +#define BCM2835_SMI_IOC_MAX 2 + +#define SMI_WIDTH_8BIT 0 +#define SMI_WIDTH_16BIT 1 +#define SMI_WIDTH_9BIT 2 +#define SMI_WIDTH_18BIT 3 + +/* max number of bytes where DMA will not be used */ +#define DMA_THRESHOLD_BYTES 128 +#define DMA_BOUNCE_BUFFER_SIZE (1024 * 1024 / 2) +#define DMA_BOUNCE_BUFFER_COUNT 3 + + +struct smi_settings { + int data_width; + /* Whether or not to pack multiple SMI transfers into a + single 32 bit FIFO word */ + bool pack_data; + + /* Timing for reads (writes the same but for WE) + * + * OE ----------+ +-------------------- + * | | + * +----------+ + * SD -<==============================>----------- + * SA -<=========================================>- + * <-setup-> <-strobe -> <-hold -> <- pace -> + */ + + int read_setup_time; + int read_hold_time; + int read_pace_time; + int read_strobe_time; + + int write_setup_time; + int write_hold_time; + int write_pace_time; + int write_strobe_time; + + bool dma_enable; /* DREQs */ + bool dma_passthrough_enable; /* External DREQs */ + int dma_read_thresh; + int dma_write_thresh; + int dma_panic_read_thresh; + int dma_panic_write_thresh; +}; + +/**************************************************************************** +* +* Declare exported SMI functions +* +***************************************************************************/ + +#ifdef __KERNEL__ + +#include /* for enum dma_transfer_direction */ +#include +#include + +struct bcm2835_smi_instance; + +struct bcm2835_smi_bounce_info { + struct semaphore callback_sem; + void *buffer[DMA_BOUNCE_BUFFER_COUNT]; + dma_addr_t phys[DMA_BOUNCE_BUFFER_COUNT]; + struct scatterlist sgl[DMA_BOUNCE_BUFFER_COUNT]; +}; + + +void bcm2835_smi_set_regs_from_settings(struct bcm2835_smi_instance *); + +struct smi_settings *bcm2835_smi_get_settings_from_regs( + struct bcm2835_smi_instance *inst); + +void bcm2835_smi_write_buf( + struct bcm2835_smi_instance *inst, + const void *buf, + size_t n_bytes); + +void bcm2835_smi_read_buf( + struct bcm2835_smi_instance *inst, + void *buf, + size_t n_bytes); + +void bcm2835_smi_set_address(struct bcm2835_smi_instance *inst, + unsigned int address); + +ssize_t bcm2835_smi_user_dma( + struct bcm2835_smi_instance *inst, + enum dma_transfer_direction dma_dir, + char __user *user_ptr, + size_t count, + struct bcm2835_smi_bounce_info **bounce); + +struct bcm2835_smi_instance *bcm2835_smi_get(struct device_node *node); + +#endif /* __KERNEL__ */ + +/**************************************************************** +* +* Implementation-only declarations +* +****************************************************************/ + +#ifdef BCM2835_SMI_IMPLEMENTATION + +/* Clock manager registers for SMI clock: */ +#define CM_SMI_BASE_ADDRESS ((BCM2708_PERI_BASE) + 0x1010b0) +/* Clock manager "password" to protect registers from spurious writes */ +#define CM_PWD (0x5a << 24) + +#define CM_SMI_CTL 0x00 +#define CM_SMI_DIV 0x04 + +#define CM_SMI_CTL_FLIP (1 << 8) +#define CM_SMI_CTL_BUSY (1 << 7) +#define CM_SMI_CTL_KILL (1 << 5) +#define CM_SMI_CTL_ENAB (1 << 4) +#define CM_SMI_CTL_SRC_MASK (0xf) +#define CM_SMI_CTL_SRC_OFFS (0) + +#define CM_SMI_DIV_DIVI_MASK (0xf << 12) +#define CM_SMI_DIV_DIVI_OFFS (12) +#define CM_SMI_DIV_DIVF_MASK (0xff << 4) +#define CM_SMI_DIV_DIVF_OFFS (4) + +/* SMI register mapping:*/ +#define SMI_BASE_ADDRESS ((BCM2708_PERI_BASE) + 0x600000) + +#define SMICS 0x00 /* control + status register */ +#define SMIL 0x04 /* length/count (n external txfers) */ +#define SMIA 0x08 /* address register */ +#define SMID 0x0c /* data register */ +#define SMIDSR0 0x10 /* device 0 read settings */ +#define SMIDSW0 0x14 /* device 0 write settings */ +#define SMIDSR1 0x18 /* device 1 read settings */ +#define SMIDSW1 0x1c /* device 1 write settings */ +#define SMIDSR2 0x20 /* device 2 read settings */ +#define SMIDSW2 0x24 /* device 2 write settings */ +#define SMIDSR3 0x28 /* device 3 read settings */ +#define SMIDSW3 0x2c /* device 3 write settings */ +#define SMIDC 0x30 /* DMA control registers */ +#define SMIDCS 0x34 /* direct control/status register */ +#define SMIDA 0x38 /* direct address register */ +#define SMIDD 0x3c /* direct data registers */ +#define SMIFD 0x40 /* FIFO debug register */ + + + +/* Control and Status register bits: + * SMICS_RXF : RX fifo full: 1 when RX fifo is full + * SMICS_TXE : TX fifo empty: 1 when empty. + * SMICS_RXD : RX fifo contains data: 1 when there is data. + * SMICS_TXD : TX fifo can accept data: 1 when true. + * SMICS_RXR : RX fifo needs reading: 1 when fifo more than 3/4 full, or + * when "DONE" and fifo not emptied. + * SMICS_TXW : TX fifo needs writing: 1 when less than 1/4 full. + * SMICS_AFERR : AXI FIFO error: 1 when fifo read when empty or written + * when full. Write 1 to clear. + * SMICS_EDREQ : 1 when external DREQ received. + * SMICS_PXLDAT : Pixel data: write 1 to enable pixel transfer modes. + * SMICS_SETERR : 1 if there was an error writing to setup regs (e.g. + * tx was in progress). Write 1 to clear. + * SMICS_PVMODE : Set to 1 to enable pixel valve mode. + * SMICS_INTR : Set to 1 to enable interrupt on RX. + * SMICS_INTT : Set to 1 to enable interrupt on TX. + * SMICS_INTD : Set to 1 to enable interrupt on DONE condition. + * SMICS_TEEN : Tear effect mode enabled: Programmed transfers will wait + * for a TE trigger before writing. + * SMICS_PAD1 : Padding settings for external transfers. For writes: the + * number of bytes initially written to the TX fifo that + * SMICS_PAD0 : should be ignored. For reads: the number of bytes that will + * be read before the data, and should be dropped. + * SMICS_WRITE : Transfer direction: 1 = write to external device, 0 = read + * SMICS_CLEAR : Write 1 to clear the FIFOs. + * SMICS_START : Write 1 to start the programmed transfer. + * SMICS_ACTIVE : Reads as 1 when a programmed transfer is underway. + * SMICS_DONE : Reads as 1 when transfer finished. For RX, not set until + * FIFO emptied. + * SMICS_ENABLE : Set to 1 to enable the SMI peripheral, 0 to disable. + */ + +#define SMICS_RXF (1 << 31) +#define SMICS_TXE (1 << 30) +#define SMICS_RXD (1 << 29) +#define SMICS_TXD (1 << 28) +#define SMICS_RXR (1 << 27) +#define SMICS_TXW (1 << 26) +#define SMICS_AFERR (1 << 25) +#define SMICS_EDREQ (1 << 15) +#define SMICS_PXLDAT (1 << 14) +#define SMICS_SETERR (1 << 13) +#define SMICS_PVMODE (1 << 12) +#define SMICS_INTR (1 << 11) +#define SMICS_INTT (1 << 10) +#define SMICS_INTD (1 << 9) +#define SMICS_TEEN (1 << 8) +#define SMICS_PAD1 (1 << 7) +#define SMICS_PAD0 (1 << 6) +#define SMICS_WRITE (1 << 5) +#define SMICS_CLEAR (1 << 4) +#define SMICS_START (1 << 3) +#define SMICS_ACTIVE (1 << 2) +#define SMICS_DONE (1 << 1) +#define SMICS_ENABLE (1 << 0) + +/* Address register bits: */ + +#define SMIA_DEVICE_MASK ((1 << 9) | (1 << 8)) +#define SMIA_DEVICE_OFFS (8) +#define SMIA_ADDR_MASK (0x3f) /* bits 5 -> 0 */ +#define SMIA_ADDR_OFFS (0) + +/* DMA control register bits: + * SMIDC_DMAEN : DMA enable: set 1: DMA requests will be issued. + * SMIDC_DMAP : DMA passthrough: when set to 0, top two data pins are used by + * SMI as usual. When set to 1, the top two pins are used for + * external DREQs: pin 16 read request, 17 write. + * SMIDC_PANIC* : Threshold at which DMA will panic during read/write. + * SMIDC_REQ* : Threshold at which DMA will generate a DREQ. + */ + +#define SMIDC_DMAEN (1 << 28) +#define SMIDC_DMAP (1 << 24) +#define SMIDC_PANICR_MASK (0x3f << 18) +#define SMIDC_PANICR_OFFS (18) +#define SMIDC_PANICW_MASK (0x3f << 12) +#define SMIDC_PANICW_OFFS (12) +#define SMIDC_REQR_MASK (0x3f << 6) +#define SMIDC_REQR_OFFS (6) +#define SMIDC_REQW_MASK (0x3f) +#define SMIDC_REQW_OFFS (0) + +/* Device settings register bits: same for all 4 (or 3?) device register sets. + * Device read settings: + * SMIDSR_RWIDTH : Read transfer width. 00 = 8bit, 01 = 16bit, + * 10 = 18bit, 11 = 9bit. + * SMIDSR_RSETUP : Read setup time: number of core cycles between chip + * select/address and read strobe. Min 1, max 64. + * SMIDSR_MODE68 : 1 for System 68 mode (i.e. enable + direction pins, + * rather than OE + WE pin) + * SMIDSR_FSETUP : If set to 1, setup time only applies to first + * transfer after address change. + * SMIDSR_RHOLD : Number of core cycles between read strobe going + * inactive and CS/address going inactive. Min 1, max 64 + * SMIDSR_RPACEALL : When set to 1, this device's RPACE value will always + * be used for the next transaction, even if it is not + * to this device. + * SMIDSR_RPACE : Number of core cycles spent waiting between CS + * deassert and start of next transfer. Min 1, max 128 + * SMIDSR_RDREQ : 1 = use external DMA request on SD16 to pace reads + * from device. Must also set DMAP in SMICS. + * SMIDSR_RSTROBE : Number of cycles to assert the read strobe. + * min 1, max 128. + */ +#define SMIDSR_RWIDTH_MASK ((1<<31)|(1<<30)) +#define SMIDSR_RWIDTH_OFFS (30) +#define SMIDSR_RSETUP_MASK (0x3f << 24) +#define SMIDSR_RSETUP_OFFS (24) +#define SMIDSR_MODE68 (1 << 23) +#define SMIDSR_FSETUP (1 << 22) +#define SMIDSR_RHOLD_MASK (0x3f << 16) +#define SMIDSR_RHOLD_OFFS (16) +#define SMIDSR_RPACEALL (1 << 15) +#define SMIDSR_RPACE_MASK (0x7f << 8) +#define SMIDSR_RPACE_OFFS (8) +#define SMIDSR_RDREQ (1 << 7) +#define SMIDSR_RSTROBE_MASK (0x7f) +#define SMIDSR_RSTROBE_OFFS (0) + +/* Device write settings: + * SMIDSW_WWIDTH : Write transfer width. 00 = 8bit, 01 = 16bit, + * 10= 18bit, 11 = 9bit. + * SMIDSW_WSETUP : Number of cycles between CS assert and write strobe. + * Min 1, max 64. + * SMIDSW_WFORMAT : Pixel format of input. 0 = 16bit RGB 565, + * 1 = 32bit RGBA 8888 + * SMIDSW_WSWAP : 1 = swap pixel data bits. (Use with SMICS_PXLDAT) + * SMIDSW_WHOLD : Time between WE deassert and CS deassert. 1 to 64 + * SMIDSW_WPACEALL : 1: this device's WPACE will be used for the next + * transfer, regardless of that transfer's device. + * SMIDSW_WPACE : Cycles between CS deassert and next CS assert. + * Min 1, max 128 + * SMIDSW_WDREQ : Use external DREQ on pin 17 to pace writes. DMAP must + * be set in SMICS. + * SMIDSW_WSTROBE : Number of cycles to assert the write strobe. + * Min 1, max 128 + */ +#define SMIDSW_WWIDTH_MASK ((1<<31)|(1<<30)) +#define SMIDSW_WWIDTH_OFFS (30) +#define SMIDSW_WSETUP_MASK (0x3f << 24) +#define SMIDSW_WSETUP_OFFS (24) +#define SMIDSW_WFORMAT (1 << 23) +#define SMIDSW_WSWAP (1 << 22) +#define SMIDSW_WHOLD_MASK (0x3f << 16) +#define SMIDSW_WHOLD_OFFS (16) +#define SMIDSW_WPACEALL (1 << 15) +#define SMIDSW_WPACE_MASK (0x7f << 8) +#define SMIDSW_WPACE_OFFS (8) +#define SMIDSW_WDREQ (1 << 7) +#define SMIDSW_WSTROBE_MASK (0x7f) +#define SMIDSW_WSTROBE_OFFS (0) + +/* Direct transfer control + status register + * SMIDCS_WRITE : Direction of transfer: 1 -> write, 0 -> read + * SMIDCS_DONE : 1 when a transfer has finished. Write 1 to clear. + * SMIDCS_START : Write 1 to start a transfer, if one is not already underway. + * SMIDCE_ENABLE: Write 1 to enable SMI in direct mode. + */ + +#define SMIDCS_WRITE (1 << 3) +#define SMIDCS_DONE (1 << 2) +#define SMIDCS_START (1 << 1) +#define SMIDCS_ENABLE (1 << 0) + +/* Direct transfer address register + * SMIDA_DEVICE : Indicates which of the device settings banks should be used. + * SMIDA_ADDR : The value to be asserted on the address pins. + */ + +#define SMIDA_DEVICE_MASK ((1<<9)|(1<<8)) +#define SMIDA_DEVICE_OFFS (8) +#define SMIDA_ADDR_MASK (0x3f) +#define SMIDA_ADDR_OFFS (0) + +/* FIFO debug register + * SMIFD_FLVL : The high-tide mark of FIFO count during the most recent txfer + * SMIFD_FCNT : The current FIFO count. + */ +#define SMIFD_FLVL_MASK (0x3f << 8) +#define SMIFD_FLVL_OFFS (8) +#define SMIFD_FCNT_MASK (0x3f) +#define SMIFD_FCNT_OFFS (0) + +#endif /* BCM2835_SMI_IMPLEMENTATION */ + +#endif /* BCM2835_SMI_H */ From ed1271f9bdf6d76e0cfee8c8b0a36359aaa98a8d Mon Sep 17 00:00:00 2001 From: Martin Sperl Date: Tue, 26 Apr 2016 14:59:21 +0000 Subject: [PATCH 047/165] MISC: bcm2835: smi: use clock manager and fix reload issues Use clock manager instead of self-made clockmanager. Also fix some error paths that showd up during development (especially missing release of dma resources on rmmod) Signed-off-by: Martin Sperl --- drivers/misc/bcm2835_smi.c | 86 +++++++++++++++------------------------------- 1 file changed, 28 insertions(+), 58 deletions(-) diff --git a/drivers/misc/bcm2835_smi.c b/drivers/misc/bcm2835_smi.c index 63a4ea08b9930a3a31a985f0a1d969b488ed49ec..1261540703127d1d63b9f3c87042c6e50d3fbec2 100644 --- a/drivers/misc/bcm2835_smi.c +++ b/drivers/misc/bcm2835_smi.c @@ -34,6 +34,7 @@ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ +#include #include #include #include @@ -62,7 +63,7 @@ struct bcm2835_smi_instance { struct device *dev; struct smi_settings settings; - __iomem void *smi_regs_ptr, *cm_smi_regs_ptr; + __iomem void *smi_regs_ptr; dma_addr_t smi_regs_busaddr; struct dma_chan *dma_chan; @@ -72,8 +73,7 @@ struct bcm2835_smi_instance { struct scatterlist buffer_sgl; - int clock_source; - int clock_divisor; + struct clk *clk; /* Sometimes we are called into in an atomic context (e.g. by JFFS2 + MTD) so we can't use a mutex */ @@ -82,42 +82,6 @@ struct bcm2835_smi_instance { /**************************************************************************** * -* SMI clock manager setup -* -***************************************************************************/ - -static inline void write_smi_cm_reg(struct bcm2835_smi_instance *inst, - u32 val, unsigned reg) -{ - writel(CM_PWD | val, inst->cm_smi_regs_ptr + reg); -} - -static inline u32 read_smi_cm_reg(struct bcm2835_smi_instance *inst, - unsigned reg) -{ - return readl(inst->cm_smi_regs_ptr + reg); -} - -static void smi_setup_clock(struct bcm2835_smi_instance *inst) -{ - dev_dbg(inst->dev, "Setting up clock..."); - /* Disable SMI clock and wait for it to stop. */ - write_smi_cm_reg(inst, 0, CM_SMI_CTL); - while (read_smi_cm_reg(inst, CM_SMI_CTL) & CM_SMI_CTL_BUSY) - ; - - write_smi_cm_reg(inst, (inst->clock_divisor << CM_SMI_DIV_DIVI_OFFS), - CM_SMI_DIV); - write_smi_cm_reg(inst, (inst->clock_source << CM_SMI_CTL_SRC_OFFS), - CM_SMI_CTL); - - /* Enable the clock */ - write_smi_cm_reg(inst, (inst->clock_source << CM_SMI_CTL_SRC_OFFS) | - CM_SMI_CTL_ENAB, CM_SMI_CTL); -} - -/**************************************************************************** -* * SMI peripheral setup * ***************************************************************************/ @@ -894,42 +858,40 @@ static int bcm2835_smi_probe(struct platform_device *pdev) struct device_node *node = dev->of_node; struct resource *ioresource; struct bcm2835_smi_instance *inst; + const __be32 *addr; + /* We require device tree support */ + if (!node) + return -EINVAL; /* Allocate buffers and instance data */ - inst = devm_kzalloc(dev, sizeof(struct bcm2835_smi_instance), GFP_KERNEL); - if (!inst) return -ENOMEM; inst->dev = dev; spin_lock_init(&inst->transaction_lock); - /* We require device tree support */ - if (!node) - return -EINVAL; - ioresource = platform_get_resource(pdev, IORESOURCE_MEM, 0); inst->smi_regs_ptr = devm_ioremap_resource(dev, ioresource); - ioresource = platform_get_resource(pdev, IORESOURCE_MEM, 1); - inst->cm_smi_regs_ptr = devm_ioremap_resource(dev, ioresource); - inst->smi_regs_busaddr = be32_to_cpu( - *of_get_address(node, 0, NULL, NULL)); - of_property_read_u32(node, - "brcm,smi-clock-source", - &inst->clock_source); - of_property_read_u32(node, - "brcm,smi-clock-divisor", - &inst->clock_divisor); + if (IS_ERR(inst->smi_regs_ptr)) { + err = PTR_ERR(inst->smi_regs_ptr); + goto err; + } + addr = of_get_address(node, 0, NULL, NULL); + inst->smi_regs_busaddr = be32_to_cpu(addr); err = bcm2835_smi_dma_setup(inst); if (err) - return err; + goto err; - /* Finally, do peripheral setup */ + /* request clock */ + inst->clk = devm_clk_get(dev, NULL); + if (!inst->clk) + goto err; + clk_prepare_enable(inst->clk); - smi_setup_clock(inst); + /* Finally, do peripheral setup */ smi_setup_regs(inst); platform_set_drvdata(pdev, inst); @@ -937,6 +899,9 @@ static int bcm2835_smi_probe(struct platform_device *pdev) dev_info(inst->dev, "initialised"); return 0; +err: + kfree(inst); + return err; } /**************************************************************************** @@ -950,6 +915,11 @@ static int bcm2835_smi_remove(struct platform_device *pdev) struct bcm2835_smi_instance *inst = platform_get_drvdata(pdev); struct device *dev = inst->dev; + dmaengine_terminate_all(inst->dma_chan); + dma_release_channel(inst->dma_chan); + + clk_disable_unprepare(inst->clk); + dev_info(dev, "SMI device removed - OK"); return 0; } From 304eafe4049385c58b42dcfdbef18cc9fca2a98e Mon Sep 17 00:00:00 2001 From: Luke Wren Date: Sat, 5 Sep 2015 01:16:10 +0100 Subject: [PATCH 048/165] Add SMI NAND driver Signed-off-by: Luke Wren --- .../bindings/mtd/brcm,bcm2835-smi-nand.txt | 42 ++++ drivers/mtd/nand/Kconfig | 7 + drivers/mtd/nand/Makefile | 1 + drivers/mtd/nand/bcm2835_smi_nand.c | 267 +++++++++++++++++++++ 4 files changed, 317 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/brcm,bcm2835-smi-nand.txt create mode 100644 drivers/mtd/nand/bcm2835_smi_nand.c diff --git a/Documentation/devicetree/bindings/mtd/brcm,bcm2835-smi-nand.txt b/Documentation/devicetree/bindings/mtd/brcm,bcm2835-smi-nand.txt new file mode 100644 index 0000000000000000000000000000000000000000..159544d6579070d376d146bd24a86653e7245707 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/brcm,bcm2835-smi-nand.txt @@ -0,0 +1,42 @@ +* BCM2835 SMI NAND flash + +This driver is a shim between the BCM2835 SMI driver (SMI is a peripheral for +talking to parallel register interfaces) and Linux's MTD layer. + +Required properties: +- compatible: "brcm,bcm2835-smi-nand" +- status: "okay" + +Optional properties: +- partition@n, where n is an integer from a consecutive sequence starting at 0 + - Difficult to store partition table on NAND device - normally put it + in the source code, kernel bootparams, or device tree (the best way!) + - Sub-properties: + - label: the partition name, as shown by mtdinfo /dev/mtd* + - reg: the size and offset of this partition. + - (optional) read-only: an empty property flagging as read only + +Example: + +nand: flash@0 { + compatible = "brcm,bcm2835-smi-nand"; + status = "okay"; + + partition@0 { + label = "stage2"; + // 128k + reg = <0 0x20000>; + read-only; + }; + partition@1 { + label = "firmware"; + // 16M + reg = <0x20000 0x1000000>; + read-only; + }; + partition@2 { + label = "root"; + // 2G + reg = <0x1020000 0x80000000>; + }; +}; \ No newline at end of file diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 6d4d5672d1d8ea0945cdaebcbf06d17f5984017b..a3b161befa01064add2b561cb0404306d83efb7e 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -41,6 +41,13 @@ config MTD_SM_COMMON tristate default n +config MTD_NAND_BCM2835_SMI + tristate "Use Broadcom's Secondary Memory Interface as a NAND controller (BCM283x)" + depends on BCM2835_SMI + default m + help + Uses the BCM2835's SMI peripheral as a NAND controller. + config MTD_NAND_DENALI tristate diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile index 19a66e404d5ba949a16a7ba358df25f033e7a51c..3e2cecac083a6bdb340127233c10f40ce567814f 100644 --- a/drivers/mtd/nand/Makefile +++ b/drivers/mtd/nand/Makefile @@ -14,6 +14,7 @@ obj-$(CONFIG_MTD_NAND_DENALI) += denali.o obj-$(CONFIG_MTD_NAND_DENALI_PCI) += denali_pci.o obj-$(CONFIG_MTD_NAND_DENALI_DT) += denali_dt.o obj-$(CONFIG_MTD_NAND_AU1550) += au1550nd.o +obj-$(CONFIG_MTD_NAND_BCM2835_SMI) += bcm2835_smi_nand.o obj-$(CONFIG_MTD_NAND_BF5XX) += bf5xx_nand.o obj-$(CONFIG_MTD_NAND_S3C2410) += s3c2410.o obj-$(CONFIG_MTD_NAND_TANGO) += tango_nand.o diff --git a/drivers/mtd/nand/bcm2835_smi_nand.c b/drivers/mtd/nand/bcm2835_smi_nand.c new file mode 100644 index 0000000000000000000000000000000000000000..02adda6da18bd0ba9ab19a104975b79de58bfdce --- /dev/null +++ b/drivers/mtd/nand/bcm2835_smi_nand.c @@ -0,0 +1,267 @@ +/** + * NAND flash driver for Broadcom Secondary Memory Interface + * + * Written by Luke Wren + * Copyright (c) 2015, Raspberry Pi (Trading) Ltd. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The names of the above-listed copyright holders may not be used + * to endorse or promote products derived from this software without + * specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2, as published by the Free + * Software Foundation. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS + * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include + +#define DEVICE_NAME "bcm2835-smi-nand" +#define DRIVER_NAME "smi-nand-bcm2835" + +struct bcm2835_smi_nand_host { + struct bcm2835_smi_instance *smi_inst; + struct nand_chip nand_chip; + struct mtd_info mtd; + struct device *dev; +}; + +/**************************************************************************** +* +* NAND functionality implementation +* +****************************************************************************/ + +#define SMI_NAND_CLE_PIN 0x01 +#define SMI_NAND_ALE_PIN 0x02 + +static inline void bcm2835_smi_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, + unsigned int ctrl) +{ + uint32_t cmd32 = cmd; + uint32_t addr = ~(SMI_NAND_CLE_PIN | SMI_NAND_ALE_PIN); + struct bcm2835_smi_nand_host *host = dev_get_drvdata(mtd->dev.parent); + struct bcm2835_smi_instance *inst = host->smi_inst; + + if (ctrl & NAND_CLE) + addr |= SMI_NAND_CLE_PIN; + if (ctrl & NAND_ALE) + addr |= SMI_NAND_ALE_PIN; + /* Lower ALL the CS pins! */ + if (ctrl & NAND_NCE) + addr &= (SMI_NAND_CLE_PIN | SMI_NAND_ALE_PIN); + + bcm2835_smi_set_address(inst, addr); + + if (cmd != NAND_CMD_NONE) + bcm2835_smi_write_buf(inst, &cmd32, 1); +} + +static inline uint8_t bcm2835_smi_nand_read_byte(struct mtd_info *mtd) +{ + uint8_t byte; + struct bcm2835_smi_nand_host *host = dev_get_drvdata(mtd->dev.parent); + struct bcm2835_smi_instance *inst = host->smi_inst; + + bcm2835_smi_read_buf(inst, &byte, 1); + return byte; +} + +static inline void bcm2835_smi_nand_write_byte(struct mtd_info *mtd, + uint8_t byte) +{ + struct bcm2835_smi_nand_host *host = dev_get_drvdata(mtd->dev.parent); + struct bcm2835_smi_instance *inst = host->smi_inst; + + bcm2835_smi_write_buf(inst, &byte, 1); +} + +static inline void bcm2835_smi_nand_write_buf(struct mtd_info *mtd, + const uint8_t *buf, int len) +{ + struct bcm2835_smi_nand_host *host = dev_get_drvdata(mtd->dev.parent); + struct bcm2835_smi_instance *inst = host->smi_inst; + + bcm2835_smi_write_buf(inst, buf, len); +} + +static inline void bcm2835_smi_nand_read_buf(struct mtd_info *mtd, + uint8_t *buf, int len) +{ + struct bcm2835_smi_nand_host *host = dev_get_drvdata(mtd->dev.parent); + struct bcm2835_smi_instance *inst = host->smi_inst; + + bcm2835_smi_read_buf(inst, buf, len); +} + +/**************************************************************************** +* +* Probe and remove functions +* +***************************************************************************/ + +static int bcm2835_smi_nand_probe(struct platform_device *pdev) +{ + struct bcm2835_smi_nand_host *host; + struct nand_chip *this; + struct mtd_info *mtd; + struct device *dev = &pdev->dev; + struct device_node *node = dev->of_node, *smi_node; + struct mtd_part_parser_data ppdata; + struct smi_settings *smi_settings; + struct bcm2835_smi_instance *smi_inst; + int ret = -ENXIO; + + if (!node) { + dev_err(dev, "No device tree node supplied!"); + return -EINVAL; + } + + smi_node = of_parse_phandle(node, "smi_handle", 0); + + /* Request use of SMI peripheral: */ + smi_inst = bcm2835_smi_get(smi_node); + + if (!smi_inst) { + dev_err(dev, "Could not register with SMI."); + return -EPROBE_DEFER; + } + + /* Set SMI timing and bus width */ + + smi_settings = bcm2835_smi_get_settings_from_regs(smi_inst); + + smi_settings->data_width = SMI_WIDTH_8BIT; + smi_settings->read_setup_time = 2; + smi_settings->read_hold_time = 1; + smi_settings->read_pace_time = 1; + smi_settings->read_strobe_time = 3; + + smi_settings->write_setup_time = 2; + smi_settings->write_hold_time = 1; + smi_settings->write_pace_time = 1; + smi_settings->write_strobe_time = 3; + + bcm2835_smi_set_regs_from_settings(smi_inst); + + host = devm_kzalloc(dev, sizeof(struct bcm2835_smi_nand_host), + GFP_KERNEL); + if (!host) + return -ENOMEM; + + host->dev = dev; + host->smi_inst = smi_inst; + + platform_set_drvdata(pdev, host); + + /* Link the structures together */ + + this = &host->nand_chip; + mtd = &host->mtd; + mtd->priv = this; + mtd->owner = THIS_MODULE; + mtd->dev.parent = dev; + mtd->name = DRIVER_NAME; + + /* 20 us command delay time... */ + this->chip_delay = 20; + + this->priv = host; + this->cmd_ctrl = bcm2835_smi_nand_cmd_ctrl; + this->read_byte = bcm2835_smi_nand_read_byte; + this->write_byte = bcm2835_smi_nand_write_byte; + this->write_buf = bcm2835_smi_nand_write_buf; + this->read_buf = bcm2835_smi_nand_read_buf; + + this->ecc.mode = NAND_ECC_SOFT; + + /* Should never be accessed directly: */ + + this->IO_ADDR_R = (void *)0xdeadbeef; + this->IO_ADDR_W = (void *)0xdeadbeef; + + /* First scan to find the device and get the page size */ + + if (nand_scan_ident(mtd, 1, NULL)) + return -ENXIO; + + /* Second phase scan */ + + if (nand_scan_tail(mtd)) + return -ENXIO; + + ret = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0); + if (!ret) + return 0; + + nand_release(mtd); + return -EINVAL; +} + +static int bcm2835_smi_nand_remove(struct platform_device *pdev) +{ + struct bcm2835_smi_nand_host *host = platform_get_drvdata(pdev); + + nand_release(&host->mtd); + + return 0; +} + +/**************************************************************************** +* +* Register the driver with device tree +* +***************************************************************************/ + +static const struct of_device_id bcm2835_smi_nand_of_match[] = { + {.compatible = "brcm,bcm2835-smi-nand",}, + { /* sentinel */ } +}; + +MODULE_DEVICE_TABLE(of, bcm2835_smi_nand_of_match); + +static struct platform_driver bcm2835_smi_nand_driver = { + .probe = bcm2835_smi_nand_probe, + .remove = bcm2835_smi_nand_remove, + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + .of_match_table = bcm2835_smi_nand_of_match, + }, +}; + +module_platform_driver(bcm2835_smi_nand_driver); + +MODULE_ALIAS("platform:smi-nand-bcm2835"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION + ("Driver for NAND chips using Broadcom Secondary Memory Interface"); +MODULE_AUTHOR("Luke Wren "); From 361deb5cddea99fac7f43cab2fdb408efd9d910c Mon Sep 17 00:00:00 2001 From: Aron Szabo Date: Sat, 16 Jun 2012 12:15:55 +0200 Subject: [PATCH 049/165] lirc: added support for RaspberryPi GPIO lirc_rpi: Use read_current_timer to determine transmitter delay. Thanks to jjmz and others See: https://github.com/raspberrypi/linux/issues/525 lirc: Remove restriction on gpio pins that can be used with lirc Compute Module, for example could use different pins lirc_rpi: Add parameter to specify input pin pull Depending on the connected IR circuitry it might be desirable to change the gpios internal pull from it pull-down default behaviour. Add a module parameter to allow the user to set it explicitly. Signed-off-by: Julian Scheel lirc-rpi: Use the higher-level irq control functions This module used to access the irq_chip methods of the gpio controller directly, rather than going through the standard enable_irq/irq_set_irq_type functions. This caused problems on pinctrl-bcm2835 which only implements the irq_enable/disable methods and not irq_unmask/mask. lirc-rpi: Correct the interrupt usage 1) Correct the use of enable_irq (i.e. don't call it so often) 2) Correct the shutdown sequence. 3) Avoid a bcm2708_gpio driver quirk by setting the irq flags earlier lirc-rpi: use getnstimeofday instead of read_current_timer read_current_timer isn't guaranteed to return values in microseconds, and indeed it doesn't on a Pi2. Issue: linux#827 lirc-rpi: Add device tree support, and a suitable overlay The overlay supports DT parameters that match the old module parameters, except that gpio_in_pull should be set using the strings "up", "down" or "off". lirc-rpi: Also support pinctrl-bcm2835 in non-DT mode fix auto-sense in lirc_rpi driver On a Raspberry Pi 2, the lirc_rpi driver might receive spurious interrupts and change it's low-active / high-active setting. When this happens, the IR remote control stops working. This patch disables this auto-detection if the 'sense' parameter was set in the device tree, making the driver robust to such spurious interrupts. --- drivers/staging/media/lirc/Kconfig | 6 + drivers/staging/media/lirc/Makefile | 1 + drivers/staging/media/lirc/lirc_rpi.c | 734 ++++++++++++++++++++++++++++++++++ include/linux/platform_data/bcm2708.h | 23 ++ 4 files changed, 764 insertions(+) create mode 100644 drivers/staging/media/lirc/lirc_rpi.c create mode 100644 include/linux/platform_data/bcm2708.h diff --git a/drivers/staging/media/lirc/Kconfig b/drivers/staging/media/lirc/Kconfig index bc67da254262318f43cb81ab58fb2053339f2e73..d2f72463a1bad7a44d67e0329cadc4cf63e0268f 100644 --- a/drivers/staging/media/lirc/Kconfig +++ b/drivers/staging/media/lirc/Kconfig @@ -12,6 +12,12 @@ menuconfig LIRC_STAGING if LIRC_STAGING +config LIRC_RPI + tristate "Homebrew GPIO Port Receiver/Transmitter for the RaspberryPi" + depends on LIRC + help + Driver for Homebrew GPIO Port Receiver/Transmitter for the RaspberryPi + config LIRC_SASEM tristate "Sasem USB IR Remote" depends on LIRC && USB diff --git a/drivers/staging/media/lirc/Makefile b/drivers/staging/media/lirc/Makefile index 28740c94349c4e412ee0b77bc800c8fb0705297c..89d5544045bc8275f43cf0df9c711f6c067dd48a 100644 --- a/drivers/staging/media/lirc/Makefile +++ b/drivers/staging/media/lirc/Makefile @@ -3,6 +3,7 @@ # Each configuration option enables a list of files. +obj-$(CONFIG_LIRC_RPI) += lirc_rpi.o obj-$(CONFIG_LIRC_SASEM) += lirc_sasem.o obj-$(CONFIG_LIRC_SIR) += lirc_sir.o obj-$(CONFIG_LIRC_ZILOG) += lirc_zilog.o diff --git a/drivers/staging/media/lirc/lirc_rpi.c b/drivers/staging/media/lirc/lirc_rpi.c new file mode 100644 index 0000000000000000000000000000000000000000..61328968d21540b04814cbd5155eaa30b715c8f4 --- /dev/null +++ b/drivers/staging/media/lirc/lirc_rpi.c @@ -0,0 +1,734 @@ +/* + * lirc_rpi.c + * + * lirc_rpi - Device driver that records pulse- and pause-lengths + * (space-lengths) (just like the lirc_serial driver does) + * between GPIO interrupt events on the Raspberry Pi. + * Lots of code has been taken from the lirc_serial module, + * so I would like say thanks to the authors. + * + * Copyright (C) 2012 Aron Robert Szabo , + * Michael Bishop + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define LIRC_DRIVER_NAME "lirc_rpi" +#define RBUF_LEN 256 +#define LIRC_TRANSMITTER_LATENCY 50 + +#ifndef MAX_UDELAY_MS +#define MAX_UDELAY_US 5000 +#else +#define MAX_UDELAY_US (MAX_UDELAY_MS*1000) +#endif + +#define dprintk(fmt, args...) \ + do { \ + if (debug) \ + printk(KERN_DEBUG LIRC_DRIVER_NAME ": " \ + fmt, ## args); \ + } while (0) + +/* module parameters */ + +/* set the default GPIO input pin */ +static int gpio_in_pin = 18; +/* set the default pull behaviour for input pin */ +static int gpio_in_pull = BCM2708_PULL_DOWN; +/* set the default GPIO output pin */ +static int gpio_out_pin = 17; +/* enable debugging messages */ +static bool debug; +/* -1 = auto, 0 = active high, 1 = active low */ +static int sense = -1; +/* use softcarrier by default */ +static bool softcarrier = 1; +/* 0 = do not invert output, 1 = invert output */ +static bool invert = 0; + +struct gpio_chip *gpiochip; +static int irq_num; +static int auto_sense = 1; + +/* forward declarations */ +static long send_pulse(unsigned long length); +static void send_space(long length); +static void lirc_rpi_exit(void); + +static struct platform_device *lirc_rpi_dev; +static struct timeval lasttv = { 0, 0 }; +static struct lirc_buffer rbuf; +static spinlock_t lock; + +/* initialized/set in init_timing_params() */ +static unsigned int freq = 38000; +static unsigned int duty_cycle = 50; +static unsigned long period; +static unsigned long pulse_width; +static unsigned long space_width; + +static void safe_udelay(unsigned long usecs) +{ + while (usecs > MAX_UDELAY_US) { + udelay(MAX_UDELAY_US); + usecs -= MAX_UDELAY_US; + } + udelay(usecs); +} + +static unsigned long read_current_us(void) +{ + struct timespec now; + getnstimeofday(&now); + return (now.tv_sec * 1000000) + (now.tv_nsec/1000); +} + +static int init_timing_params(unsigned int new_duty_cycle, + unsigned int new_freq) +{ + if (1000 * 1000000L / new_freq * new_duty_cycle / 100 <= + LIRC_TRANSMITTER_LATENCY) + return -EINVAL; + if (1000 * 1000000L / new_freq * (100 - new_duty_cycle) / 100 <= + LIRC_TRANSMITTER_LATENCY) + return -EINVAL; + duty_cycle = new_duty_cycle; + freq = new_freq; + period = 1000 * 1000000L / freq; + pulse_width = period * duty_cycle / 100; + space_width = period - pulse_width; + dprintk("in init_timing_params, freq=%d pulse=%ld, " + "space=%ld\n", freq, pulse_width, space_width); + return 0; +} + +static long send_pulse_softcarrier(unsigned long length) +{ + int flag; + unsigned long actual, target; + unsigned long actual_us, initial_us, target_us; + + length *= 1000; + + actual = 0; target = 0; flag = 0; + actual_us = read_current_us(); + + while (actual < length) { + if (flag) { + gpiochip->set(gpiochip, gpio_out_pin, invert); + target += space_width; + } else { + gpiochip->set(gpiochip, gpio_out_pin, !invert); + target += pulse_width; + } + initial_us = actual_us; + target_us = actual_us + (target - actual) / 1000; + /* + * Note - we've checked in ioctl that the pulse/space + * widths are big enough so that d is > 0 + */ + if ((int)(target_us - actual_us) > 0) + udelay(target_us - actual_us); + actual_us = read_current_us(); + actual += (actual_us - initial_us) * 1000; + flag = !flag; + } + return (actual-length) / 1000; +} + +static long send_pulse(unsigned long length) +{ + if (length <= 0) + return 0; + + if (softcarrier) { + return send_pulse_softcarrier(length); + } else { + gpiochip->set(gpiochip, gpio_out_pin, !invert); + safe_udelay(length); + return 0; + } +} + +static void send_space(long length) +{ + gpiochip->set(gpiochip, gpio_out_pin, invert); + if (length <= 0) + return; + safe_udelay(length); +} + +static void rbwrite(int l) +{ + if (lirc_buffer_full(&rbuf)) { + /* no new signals will be accepted */ + dprintk("Buffer overrun\n"); + return; + } + lirc_buffer_write(&rbuf, (void *)&l); +} + +static void frbwrite(int l) +{ + /* simple noise filter */ + static int pulse, space; + static unsigned int ptr; + + if (ptr > 0 && (l & PULSE_BIT)) { + pulse += l & PULSE_MASK; + if (pulse > 250) { + rbwrite(space); + rbwrite(pulse | PULSE_BIT); + ptr = 0; + pulse = 0; + } + return; + } + if (!(l & PULSE_BIT)) { + if (ptr == 0) { + if (l > 20000) { + space = l; + ptr++; + return; + } + } else { + if (l > 20000) { + space += pulse; + if (space > PULSE_MASK) + space = PULSE_MASK; + space += l; + if (space > PULSE_MASK) + space = PULSE_MASK; + pulse = 0; + return; + } + rbwrite(space); + rbwrite(pulse | PULSE_BIT); + ptr = 0; + pulse = 0; + } + } + rbwrite(l); +} + +static irqreturn_t irq_handler(int i, void *blah, struct pt_regs *regs) +{ + struct timeval tv; + long deltv; + int data; + int signal; + + /* use the GPIO signal level */ + signal = gpiochip->get(gpiochip, gpio_in_pin); + + if (sense != -1) { + /* get current time */ + do_gettimeofday(&tv); + + /* calc time since last interrupt in microseconds */ + deltv = tv.tv_sec-lasttv.tv_sec; + if (tv.tv_sec < lasttv.tv_sec || + (tv.tv_sec == lasttv.tv_sec && + tv.tv_usec < lasttv.tv_usec)) { + printk(KERN_WARNING LIRC_DRIVER_NAME + ": AIEEEE: your clock just jumped backwards\n"); + printk(KERN_WARNING LIRC_DRIVER_NAME + ": %d %d %lx %lx %lx %lx\n", signal, sense, + tv.tv_sec, lasttv.tv_sec, + tv.tv_usec, lasttv.tv_usec); + data = PULSE_MASK; + } else if (deltv > 15) { + data = PULSE_MASK; /* really long time */ + if (!(signal^sense)) { + /* sanity check */ + printk(KERN_DEBUG LIRC_DRIVER_NAME + ": AIEEEE: %d %d %lx %lx %lx %lx\n", + signal, sense, tv.tv_sec, lasttv.tv_sec, + tv.tv_usec, lasttv.tv_usec); + /* + * detecting pulse while this + * MUST be a space! + */ + if (auto_sense) { + sense = sense ? 0 : 1; + } + } + } else { + data = (int) (deltv*1000000 + + (tv.tv_usec - lasttv.tv_usec)); + } + frbwrite(signal^sense ? data : (data|PULSE_BIT)); + lasttv = tv; + wake_up_interruptible(&rbuf.wait_poll); + } + + return IRQ_HANDLED; +} + +static int is_right_chip(struct gpio_chip *chip, void *data) +{ + dprintk("is_right_chip %s %d\n", chip->label, strcmp(data, chip->label)); + + if (strcmp(data, chip->label) == 0) + return 1; + return 0; +} + +static inline int read_bool_property(const struct device_node *np, + const char *propname, + bool *out_value) +{ + u32 value = 0; + int err = of_property_read_u32(np, propname, &value); + if (err == 0) + *out_value = (value != 0); + return err; +} + +static void read_pin_settings(struct device_node *node) +{ + u32 pin; + int index; + + for (index = 0; + of_property_read_u32_index( + node, + "brcm,pins", + index, + &pin) == 0; + index++) { + u32 function; + int err; + err = of_property_read_u32_index( + node, + "brcm,function", + index, + &function); + if (err == 0) { + if (function == 1) /* Output */ + gpio_out_pin = pin; + else if (function == 0) /* Input */ + gpio_in_pin = pin; + } + } +} + +static int init_port(void) +{ + int i, nlow, nhigh; + struct device_node *node; + + node = lirc_rpi_dev->dev.of_node; + + gpiochip = gpiochip_find("bcm2708_gpio", is_right_chip); + + /* + * Because of the lack of a setpull function, only support + * pinctrl-bcm2835 if using device tree. + */ + if (!gpiochip && node) + gpiochip = gpiochip_find("pinctrl-bcm2835", is_right_chip); + + if (!gpiochip) { + pr_err(LIRC_DRIVER_NAME ": gpio chip not found!\n"); + return -ENODEV; + } + + if (node) { + struct device_node *pins_node; + + pins_node = of_parse_phandle(node, "pinctrl-0", 0); + if (!pins_node) { + printk(KERN_ERR LIRC_DRIVER_NAME + ": pinctrl settings not found!\n"); + return -EINVAL; + } + + read_pin_settings(pins_node); + + of_property_read_u32(node, "rpi,sense", &sense); + + read_bool_property(node, "rpi,softcarrier", &softcarrier); + + read_bool_property(node, "rpi,invert", &invert); + + read_bool_property(node, "rpi,debug", &debug); + + } else { + return -EINVAL; + } + + gpiochip->set(gpiochip, gpio_out_pin, invert); + + irq_num = gpiochip->to_irq(gpiochip, gpio_in_pin); + dprintk("to_irq %d\n", irq_num); + + /* if pin is high, then this must be an active low receiver. */ + if (sense == -1) { + /* wait 1/2 sec for the power supply */ + msleep(500); + + /* + * probe 9 times every 0.04s, collect "votes" for + * active high/low + */ + nlow = 0; + nhigh = 0; + for (i = 0; i < 9; i++) { + if (gpiochip->get(gpiochip, gpio_in_pin)) + nlow++; + else + nhigh++; + msleep(40); + } + sense = (nlow >= nhigh ? 1 : 0); + printk(KERN_INFO LIRC_DRIVER_NAME + ": auto-detected active %s receiver on GPIO pin %d\n", + sense ? "low" : "high", gpio_in_pin); + } else { + printk(KERN_INFO LIRC_DRIVER_NAME + ": manually using active %s receiver on GPIO pin %d\n", + sense ? "low" : "high", gpio_in_pin); + auto_sense = 0; + } + + return 0; +} + +// called when the character device is opened +static int set_use_inc(void *data) +{ + int result; + + /* initialize timestamp */ + do_gettimeofday(&lasttv); + + result = request_irq(irq_num, + (irq_handler_t) irq_handler, + IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING, + LIRC_DRIVER_NAME, (void*) 0); + + switch (result) { + case -EBUSY: + printk(KERN_ERR LIRC_DRIVER_NAME + ": IRQ %d is busy\n", + irq_num); + return -EBUSY; + case -EINVAL: + printk(KERN_ERR LIRC_DRIVER_NAME + ": Bad irq number or handler\n"); + return -EINVAL; + default: + dprintk("Interrupt %d obtained\n", + irq_num); + break; + }; + + /* initialize pulse/space widths */ + init_timing_params(duty_cycle, freq); + + return 0; +} + +static void set_use_dec(void *data) +{ + /* GPIO Pin Falling/Rising Edge Detect Disable */ + irq_set_irq_type(irq_num, 0); + disable_irq(irq_num); + + free_irq(irq_num, (void *) 0); + + dprintk(KERN_INFO LIRC_DRIVER_NAME + ": freed IRQ %d\n", irq_num); +} + +static ssize_t lirc_write(struct file *file, const char *buf, + size_t n, loff_t *ppos) +{ + int i, count; + unsigned long flags; + long delta = 0; + int *wbuf; + + count = n / sizeof(int); + if (n % sizeof(int) || count % 2 == 0) + return -EINVAL; + wbuf = memdup_user(buf, n); + if (IS_ERR(wbuf)) + return PTR_ERR(wbuf); + spin_lock_irqsave(&lock, flags); + + for (i = 0; i < count; i++) { + if (i%2) + send_space(wbuf[i] - delta); + else + delta = send_pulse(wbuf[i]); + } + gpiochip->set(gpiochip, gpio_out_pin, invert); + + spin_unlock_irqrestore(&lock, flags); + kfree(wbuf); + return n; +} + +static long lirc_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) +{ + int result; + __u32 value; + + switch (cmd) { + case LIRC_GET_SEND_MODE: + return -ENOIOCTLCMD; + break; + + case LIRC_SET_SEND_MODE: + result = get_user(value, (__u32 *) arg); + if (result) + return result; + /* only LIRC_MODE_PULSE supported */ + if (value != LIRC_MODE_PULSE) + return -ENOSYS; + break; + + case LIRC_GET_LENGTH: + return -ENOSYS; + break; + + case LIRC_SET_SEND_DUTY_CYCLE: + dprintk("SET_SEND_DUTY_CYCLE\n"); + result = get_user(value, (__u32 *) arg); + if (result) + return result; + if (value <= 0 || value > 100) + return -EINVAL; + return init_timing_params(value, freq); + break; + + case LIRC_SET_SEND_CARRIER: + dprintk("SET_SEND_CARRIER\n"); + result = get_user(value, (__u32 *) arg); + if (result) + return result; + if (value > 500000 || value < 20000) + return -EINVAL; + return init_timing_params(duty_cycle, value); + break; + + default: + return lirc_dev_fop_ioctl(filep, cmd, arg); + } + return 0; +} + +static const struct file_operations lirc_fops = { + .owner = THIS_MODULE, + .write = lirc_write, + .unlocked_ioctl = lirc_ioctl, + .read = lirc_dev_fop_read, + .poll = lirc_dev_fop_poll, + .open = lirc_dev_fop_open, + .release = lirc_dev_fop_close, + .llseek = no_llseek, +}; + +static struct lirc_driver driver = { + .name = LIRC_DRIVER_NAME, + .minor = -1, + .code_length = 1, + .sample_rate = 0, + .data = NULL, + .add_to_buf = NULL, + .rbuf = &rbuf, + .set_use_inc = set_use_inc, + .set_use_dec = set_use_dec, + .fops = &lirc_fops, + .dev = NULL, + .owner = THIS_MODULE, +}; + +static const struct of_device_id lirc_rpi_of_match[] = { + { .compatible = "rpi,lirc-rpi", }, + {}, +}; +MODULE_DEVICE_TABLE(of, lirc_rpi_of_match); + +static struct platform_driver lirc_rpi_driver = { + .driver = { + .name = LIRC_DRIVER_NAME, + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(lirc_rpi_of_match), + }, +}; + +static int __init lirc_rpi_init(void) +{ + struct device_node *node; + int result; + + /* Init read buffer. */ + result = lirc_buffer_init(&rbuf, sizeof(int), RBUF_LEN); + if (result < 0) + return -ENOMEM; + + result = platform_driver_register(&lirc_rpi_driver); + if (result) { + printk(KERN_ERR LIRC_DRIVER_NAME + ": lirc register returned %d\n", result); + goto exit_buffer_free; + } + + node = of_find_compatible_node(NULL, NULL, + lirc_rpi_of_match[0].compatible); + + if (node) { + /* DT-enabled */ + lirc_rpi_dev = of_find_device_by_node(node); + WARN_ON(lirc_rpi_dev->dev.of_node != node); + of_node_put(node); + } + else { + lirc_rpi_dev = platform_device_alloc(LIRC_DRIVER_NAME, 0); + if (!lirc_rpi_dev) { + result = -ENOMEM; + goto exit_driver_unregister; + } + + result = platform_device_add(lirc_rpi_dev); + if (result) + goto exit_device_put; + } + + return 0; + + exit_device_put: + platform_device_put(lirc_rpi_dev); + + exit_driver_unregister: + platform_driver_unregister(&lirc_rpi_driver); + + exit_buffer_free: + lirc_buffer_free(&rbuf); + + return result; +} + +static void lirc_rpi_exit(void) +{ + if (!lirc_rpi_dev->dev.of_node) + platform_device_unregister(lirc_rpi_dev); + platform_driver_unregister(&lirc_rpi_driver); + lirc_buffer_free(&rbuf); +} + +static int __init lirc_rpi_init_module(void) +{ + int result; + + result = lirc_rpi_init(); + if (result) + return result; + + result = init_port(); + if (result < 0) + goto exit_rpi; + + driver.features = LIRC_CAN_SET_SEND_DUTY_CYCLE | + LIRC_CAN_SET_SEND_CARRIER | + LIRC_CAN_SEND_PULSE | + LIRC_CAN_REC_MODE2; + + driver.dev = &lirc_rpi_dev->dev; + driver.minor = lirc_register_driver(&driver); + + if (driver.minor < 0) { + printk(KERN_ERR LIRC_DRIVER_NAME + ": device registration failed with %d\n", result); + result = -EIO; + goto exit_rpi; + } + + printk(KERN_INFO LIRC_DRIVER_NAME ": driver registered!\n"); + + return 0; + + exit_rpi: + lirc_rpi_exit(); + + return result; +} + +static void __exit lirc_rpi_exit_module(void) +{ + lirc_unregister_driver(driver.minor); + + gpio_free(gpio_out_pin); + gpio_free(gpio_in_pin); + + lirc_rpi_exit(); + + printk(KERN_INFO LIRC_DRIVER_NAME ": cleaned up module\n"); +} + +module_init(lirc_rpi_init_module); +module_exit(lirc_rpi_exit_module); + +MODULE_DESCRIPTION("Infra-red receiver and blaster driver for Raspberry Pi GPIO."); +MODULE_AUTHOR("Aron Robert Szabo "); +MODULE_AUTHOR("Michael Bishop "); +MODULE_LICENSE("GPL"); + +module_param(gpio_out_pin, int, S_IRUGO); +MODULE_PARM_DESC(gpio_out_pin, "GPIO output/transmitter pin number of the BCM" + " processor. (default 17"); + +module_param(gpio_in_pin, int, S_IRUGO); +MODULE_PARM_DESC(gpio_in_pin, "GPIO input pin number of the BCM processor." + " (default 18"); + +module_param(gpio_in_pull, int, S_IRUGO); +MODULE_PARM_DESC(gpio_in_pull, "GPIO input pin pull configuration." + " (0 = off, 1 = up, 2 = down, default down)"); + +module_param(sense, int, S_IRUGO); +MODULE_PARM_DESC(sense, "Override autodetection of IR receiver circuit" + " (0 = active high, 1 = active low )"); + +module_param(softcarrier, bool, S_IRUGO); +MODULE_PARM_DESC(softcarrier, "Software carrier (0 = off, 1 = on, default on)"); + +module_param(invert, bool, S_IRUGO); +MODULE_PARM_DESC(invert, "Invert output (0 = off, 1 = on, default off"); + +module_param(debug, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(debug, "Enable debugging messages"); diff --git a/include/linux/platform_data/bcm2708.h b/include/linux/platform_data/bcm2708.h new file mode 100644 index 0000000000000000000000000000000000000000..fb69624ccef00ddbdccf8256d6baf1b172de57ec --- /dev/null +++ b/include/linux/platform_data/bcm2708.h @@ -0,0 +1,23 @@ +/* + * include/linux/platform_data/bcm2708.h + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * (C) 2014 Julian Scheel + * + */ +#ifndef __BCM2708_H_ +#define __BCM2708_H_ + +typedef enum { + BCM2708_PULL_OFF, + BCM2708_PULL_UP, + BCM2708_PULL_DOWN +} bcm2708_gpio_pull_t; + +extern int bcm2708_gpio_setpull(struct gpio_chip *gc, unsigned offset, + bcm2708_gpio_pull_t value); + +#endif From 22b652cf091213d42d68bc030e327de206541581 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Wed, 3 Jul 2013 00:49:20 +0100 Subject: [PATCH 050/165] Add cpufreq driver Signed-off-by: popcornmix --- drivers/cpufreq/Kconfig.arm | 9 ++ drivers/cpufreq/Makefile | 1 + drivers/cpufreq/bcm2835-cpufreq.c | 218 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 228 insertions(+) create mode 100644 drivers/cpufreq/bcm2835-cpufreq.c diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm index 74fa5c5904d388444f357bc7b7e9e1737a45fd29..d5d9ec0bd5d6f5d5c9cc2f8df881d28e081ebb97 100644 --- a/drivers/cpufreq/Kconfig.arm +++ b/drivers/cpufreq/Kconfig.arm @@ -233,6 +233,15 @@ config ARM_STI_CPUFREQ this config option if you wish to add CPUFreq support for STi based SoCs. +config ARM_BCM2835_CPUFREQ + depends on RASPBERRYPI_FIRMWARE + bool "BCM2835 Driver" + default y + help + This adds the CPUFreq driver for BCM2835 + + If in doubt, say N. + config ARM_TEGRA20_CPUFREQ bool "Tegra20 CPUFreq support" depends on ARCH_TEGRA diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile index 9f5a8045f36d37710c8196e8ddf1145817664f05..3de3eebd30a3f5e5e6c0a94c47e39545e9d8cbfe 100644 --- a/drivers/cpufreq/Makefile +++ b/drivers/cpufreq/Makefile @@ -75,6 +75,7 @@ obj-$(CONFIG_ARM_SA1110_CPUFREQ) += sa1110-cpufreq.o obj-$(CONFIG_ARM_SCPI_CPUFREQ) += scpi-cpufreq.o obj-$(CONFIG_ARM_SPEAR_CPUFREQ) += spear-cpufreq.o obj-$(CONFIG_ARM_STI_CPUFREQ) += sti-cpufreq.o +obj-$(CONFIG_ARM_BCM2835_CPUFREQ) += bcm2835-cpufreq.o obj-$(CONFIG_ARM_TEGRA20_CPUFREQ) += tegra20-cpufreq.o obj-$(CONFIG_ARM_TEGRA124_CPUFREQ) += tegra124-cpufreq.o obj-$(CONFIG_ARM_TI_CPUFREQ) += ti-cpufreq.o diff --git a/drivers/cpufreq/bcm2835-cpufreq.c b/drivers/cpufreq/bcm2835-cpufreq.c new file mode 100644 index 0000000000000000000000000000000000000000..414fbdc10dfbfc6e4bb47870a7af3fd5780f9c9a --- /dev/null +++ b/drivers/cpufreq/bcm2835-cpufreq.c @@ -0,0 +1,218 @@ +/***************************************************************************** +* Copyright 2011 Broadcom Corporation. All rights reserved. +* +* Unless you and Broadcom execute a separate written software license +* agreement governing use of this software, this software is licensed to you +* under the terms of the GNU General Public License version 2, available at +* http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). +* +* Notwithstanding the above, under no circumstances may you combine this +* software in any way with any other Broadcom software provided under a +* license other than the GPL, without Broadcom's express prior written +* consent. +*****************************************************************************/ + +/***************************************************************************** +* FILENAME: bcm2835-cpufreq.h +* DESCRIPTION: This driver dynamically manages the CPU Frequency of the ARM +* processor. Messages are sent to Videocore either setting or requesting the +* frequency of the ARM in order to match an appropiate frequency to the current +* usage of the processor. The policy which selects the frequency to use is +* defined in the kernel .config file, but can be changed during runtime. +*****************************************************************************/ + +/* ---------- INCLUDES ---------- */ +#include +#include +#include +#include +#include + +/* ---------- DEFINES ---------- */ +/*#define CPUFREQ_DEBUG_ENABLE*/ /* enable debugging */ +#define MODULE_NAME "bcm2835-cpufreq" + +#define VCMSG_ID_ARM_CLOCK 0x000000003 /* Clock/Voltage ID's */ + +/* debug printk macros */ +#ifdef CPUFREQ_DEBUG_ENABLE +#define print_debug(fmt,...) pr_debug("%s:%s:%d: "fmt, MODULE_NAME, __func__, __LINE__, ##__VA_ARGS__) +#else +#define print_debug(fmt,...) +#endif +#define print_err(fmt,...) pr_err("%s:%s:%d: "fmt, MODULE_NAME, __func__,__LINE__, ##__VA_ARGS__) +#define print_info(fmt,...) pr_info("%s: "fmt, MODULE_NAME, ##__VA_ARGS__) + +/* ---------- GLOBALS ---------- */ +static struct cpufreq_driver bcm2835_cpufreq_driver; /* the cpufreq driver global */ +static unsigned int min_frequency, max_frequency; +static struct cpufreq_frequency_table bcm2835_freq_table[3]; + +/* + =============================================== + clk_rate either gets or sets the clock rates. + =============================================== +*/ + +static int bcm2835_cpufreq_clock_property(u32 tag, u32 id, u32 *val) +{ + struct rpi_firmware *fw = rpi_firmware_get(NULL); + struct { + u32 id; + u32 val; + } packet; + int ret; + + packet.id = id; + packet.val = *val; + ret = rpi_firmware_property(fw, tag, &packet, sizeof(packet)); + if (ret) + return ret; + + *val = packet.val; + + return 0; +} + +static uint32_t bcm2835_cpufreq_set_clock(int cur_rate, int arm_rate) +{ + u32 rate = arm_rate * 1000; + int ret; + + ret = bcm2835_cpufreq_clock_property(RPI_FIRMWARE_SET_CLOCK_RATE, VCMSG_ID_ARM_CLOCK, &rate); + if (ret) { + print_err("Failed to set clock: %d (%d)\n", arm_rate, ret); + return 0; + } + + rate /= 1000; + print_debug("Setting new frequency = %d -> %d (actual %d)\n", cur_rate, arm_rate, rate); + + return rate; +} + +static uint32_t bcm2835_cpufreq_get_clock(int tag) +{ + u32 rate; + int ret; + + ret = bcm2835_cpufreq_clock_property(tag, VCMSG_ID_ARM_CLOCK, &rate); + if (ret) { + print_err("Failed to get clock (%d)\n", ret); + return 0; + } + + rate /= 1000; + print_debug("%s frequency = %u\n", + tag == RPI_FIRMWARE_GET_CLOCK_RATE ? "Current": + tag == RPI_FIRMWARE_GET_MIN_CLOCK_RATE ? "Min": + tag == RPI_FIRMWARE_GET_MAX_CLOCK_RATE ? "Max": + "Unexpected", rate); + + return rate; +} + +/* + ==================================================== + Module Initialisation registers the cpufreq driver + ==================================================== +*/ +static int __init bcm2835_cpufreq_module_init(void) +{ + print_debug("IN\n"); + return cpufreq_register_driver(&bcm2835_cpufreq_driver); +} + +/* + ============= + Module exit + ============= +*/ +static void __exit bcm2835_cpufreq_module_exit(void) +{ + print_debug("IN\n"); + cpufreq_unregister_driver(&bcm2835_cpufreq_driver); + return; +} + +/* + ============================================================== + Initialisation function sets up the CPU policy for first use + ============================================================== +*/ +static int bcm2835_cpufreq_driver_init(struct cpufreq_policy *policy) +{ + /* measured value of how long it takes to change frequency */ + const unsigned int transition_latency = 355000; /* ns */ + + if (!rpi_firmware_get(NULL)) { + print_err("Firmware is not available\n"); + return -ENODEV; + } + + /* now find out what the maximum and minimum frequencies are */ + min_frequency = bcm2835_cpufreq_get_clock(RPI_FIRMWARE_GET_MIN_CLOCK_RATE); + max_frequency = bcm2835_cpufreq_get_clock(RPI_FIRMWARE_GET_MAX_CLOCK_RATE); + + if (min_frequency == max_frequency) { + bcm2835_freq_table[0].frequency = min_frequency; + bcm2835_freq_table[1].frequency = CPUFREQ_TABLE_END; + } else { + bcm2835_freq_table[0].frequency = min_frequency; + bcm2835_freq_table[1].frequency = max_frequency; + bcm2835_freq_table[2].frequency = CPUFREQ_TABLE_END; + } + + print_info("min=%d max=%d\n", min_frequency, max_frequency); + return cpufreq_generic_init(policy, bcm2835_freq_table, transition_latency); +} + +/* + ===================================================================== + Target index function chooses the requested frequency from the table + ===================================================================== +*/ + +static int bcm2835_cpufreq_driver_target_index(struct cpufreq_policy *policy, unsigned int state) +{ + unsigned int target_freq = state == 0 ? min_frequency : max_frequency; + unsigned int cur = bcm2835_cpufreq_set_clock(policy->cur, target_freq); + + if (!cur) + { + print_err("Error occurred setting a new frequency (%d)\n", target_freq); + return -EINVAL; + } + print_debug("%s: %i: freq %d->%d\n", policy->governor->name, state, policy->cur, cur); + return 0; +} + +/* + ====================================================== + Get function returns the current frequency from table + ====================================================== +*/ + +static unsigned int bcm2835_cpufreq_driver_get(unsigned int cpu) +{ + unsigned int actual_rate = bcm2835_cpufreq_get_clock(RPI_FIRMWARE_GET_CLOCK_RATE); + print_debug("cpu%d: freq=%d\n", cpu, actual_rate); + return actual_rate <= min_frequency ? min_frequency : max_frequency; +} + +/* the CPUFreq driver */ +static struct cpufreq_driver bcm2835_cpufreq_driver = { + .name = "BCM2835 CPUFreq", + .init = bcm2835_cpufreq_driver_init, + .verify = cpufreq_generic_frequency_table_verify, + .target_index = bcm2835_cpufreq_driver_target_index, + .get = bcm2835_cpufreq_driver_get, + .attr = cpufreq_generic_attr, +}; + +MODULE_AUTHOR("Dorian Peake and Dom Cobley"); +MODULE_DESCRIPTION("CPU frequency driver for BCM2835 chip"); +MODULE_LICENSE("GPL"); + +module_init(bcm2835_cpufreq_module_init); +module_exit(bcm2835_cpufreq_module_exit); From 0944045dd011420aadd23ca441f7ddfe312a82ef Mon Sep 17 00:00:00 2001 From: popcornmix Date: Tue, 26 Mar 2013 19:24:24 +0000 Subject: [PATCH 051/165] Added hwmon/thermal driver for reporting core temperature. Thanks Dorian MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit BCM270x: Move thermal sensor to Device Tree Add Device Tree support to bcm2835-thermal driver. Add thermal sensor device to Device Tree. Don't add platform device when booting in DT mode. Signed-off-by: Noralf Trønnes --- drivers/thermal/Kconfig | 7 +++ drivers/thermal/Makefile | 1 + drivers/thermal/bcm2835-thermal.c | 109 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 117 insertions(+) create mode 100644 drivers/thermal/bcm2835-thermal.c diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig index 776b34396144a4612ec5ebfff5a549be9f6e33ca..592a1c319ca130f0d82649c60989c05d4ec184b2 100644 --- a/drivers/thermal/Kconfig +++ b/drivers/thermal/Kconfig @@ -313,6 +313,13 @@ config INTEL_POWERCLAMP enforce idle time which results in more package C-state residency. The user interface is exposed via generic thermal framework. +config THERMAL_BCM2835 + depends on RASPBERRYPI_FIRMWARE + tristate "BCM2835 Thermal Driver" + help + This will enable temperature monitoring for the Broadcom BCM2835 + chip. If built as a module, it will be called 'bcm2835-thermal'. + config X86_PKG_TEMP_THERMAL tristate "X86 package temperature thermal driver" depends on X86_THERMAL_VECTOR diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile index 7adae2029355639b03359fb542c6030f93808ab5..adc17796d5e17787f632b3f36c48d0bba141132d 100644 --- a/drivers/thermal/Makefile +++ b/drivers/thermal/Makefile @@ -43,6 +43,7 @@ obj-$(CONFIG_MAX77620_THERMAL) += max77620_thermal.o obj-$(CONFIG_QORIQ_THERMAL) += qoriq_thermal.o obj-$(CONFIG_DB8500_CPUFREQ_COOLING) += db8500_cpufreq_cooling.o obj-$(CONFIG_INTEL_POWERCLAMP) += intel_powerclamp.o +obj-$(CONFIG_THERMAL_BCM2835) += bcm2835-thermal.o obj-$(CONFIG_X86_PKG_TEMP_THERMAL) += x86_pkg_temp_thermal.o obj-$(CONFIG_INTEL_SOC_DTS_IOSF_CORE) += intel_soc_dts_iosf.o obj-$(CONFIG_INTEL_SOC_DTS_THERMAL) += intel_soc_dts_thermal.o diff --git a/drivers/thermal/bcm2835-thermal.c b/drivers/thermal/bcm2835-thermal.c new file mode 100644 index 0000000000000000000000000000000000000000..c63fb9f9d143e19612a18fe530c7b2b3518a22a4 --- /dev/null +++ b/drivers/thermal/bcm2835-thermal.c @@ -0,0 +1,109 @@ +/***************************************************************************** +* Copyright 2011 Broadcom Corporation. All rights reserved. +* +* Unless you and Broadcom execute a separate written software license +* agreement governing use of this software, this software is licensed to you +* under the terms of the GNU General Public License version 2, available at +* http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). +* +* Notwithstanding the above, under no circumstances may you combine this +* software in any way with any other Broadcom software provided under a +* license other than the GPL, without Broadcom's express prior written +* consent. +*****************************************************************************/ + +#include +#include +#include +#include + +static int bcm2835_thermal_get_property(struct thermal_zone_device *tz, + int *temp, u32 tag) +{ + struct rpi_firmware *fw = tz->devdata; + struct { + u32 id; + u32 val; + } packet; + int ret; + + *temp = 0; + packet.id = 0; + ret = rpi_firmware_property(fw, tag, &packet, sizeof(packet)); + if (ret) { + dev_err(&tz->device, "Failed to get temperature\n"); + return ret; + } + + *temp = packet.val; + dev_dbg(&tz->device, "%stemp=%d\n", + tag == RPI_FIRMWARE_GET_MAX_TEMPERATURE ? "max" : "", *temp); + + return 0; +} + +static int bcm2835_thermal_get_temp(struct thermal_zone_device *tz, + int *temp) +{ + return bcm2835_thermal_get_property(tz, temp, + RPI_FIRMWARE_GET_TEMPERATURE); +} + +static struct thermal_zone_device_ops ops = { + .get_temp = bcm2835_thermal_get_temp, +}; + +static int bcm2835_thermal_probe(struct platform_device *pdev) +{ + struct device_node *fw_np; + struct rpi_firmware *fw; + struct thermal_zone_device *tz; + + fw_np = of_parse_phandle(pdev->dev.of_node, "firmware", 0); + if (!fw_np) { + dev_err(&pdev->dev, "Missing firmware node\n"); + return -ENOENT; + } + fw = rpi_firmware_get(fw_np); + if (!fw) + return -EPROBE_DEFER; + + tz = thermal_zone_device_register("bcm2835_thermal", 0, 0, fw, &ops, + NULL, 0, 0); + if (IS_ERR(tz)) { + dev_err(&pdev->dev, "Failed to register the thermal device\n"); + return PTR_ERR(tz); + } + + platform_set_drvdata(pdev, tz); + + return 0; +} + +static int bcm2835_thermal_remove(struct platform_device *pdev) +{ + thermal_zone_device_unregister(platform_get_drvdata(pdev)); + + return 0; +} + +static const struct of_device_id bcm2835_thermal_of_match_table[] = { + { .compatible = "brcm,bcm2835-thermal", }, + {}, +}; +MODULE_DEVICE_TABLE(of, bcm2835_thermal_of_match_table); + +static struct platform_driver bcm2835_thermal_driver = { + .probe = bcm2835_thermal_probe, + .remove = bcm2835_thermal_remove, + .driver = { + .name = "bcm2835_thermal", + .of_match_table = bcm2835_thermal_of_match_table, + }, +}; +module_platform_driver(bcm2835_thermal_driver); + +MODULE_AUTHOR("Dorian Peake"); +MODULE_AUTHOR("Noralf Trønnes"); +MODULE_DESCRIPTION("Thermal driver for bcm2835 chip"); +MODULE_LICENSE("GPL"); From 3f9efad37966f2c1b6ff738e046c0176a192cce7 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Wed, 17 Jun 2015 15:44:08 +0100 Subject: [PATCH 052/165] Add Chris Boot's i2c driver MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit i2c-bcm2708: fixed baudrate Fixed issue where the wrong CDIV value was set for baudrates below 3815 Hz (for 250MHz bus clock). In that case the computed CDIV value was more than 0xffff. However the CDIV register width is only 16 bits. This resulted in incorrect setting of CDIV and higher baudrate than intended. Example: 3500Hz -> CDIV=0x11704 -> CDIV(16bit)=0x1704 -> 42430Hz After correction: 3500Hz -> CDIV=0x11704 -> CDIV(16bit)=0xffff -> 3815Hz The correct baudrate is shown in the log after the cdiv > 0xffff correction. Perform I2C combined transactions when possible Perform I2C combined transactions whenever possible, within the restrictions of the Broadcomm Serial Controller. Disable DONE interrupt during TA poll Prevent interrupt from being triggered if poll is missed and transfer starts and finishes. i2c: Make combined transactions optional and disabled by default i2c: bcm2708: add device tree support Add DT support to driver and add to .dtsi file. Setup pins in .dts file. i2c is disabled by default. Signed-off-by: Noralf Tronnes bcm2708: don't register i2c controllers when using DT The devices for the i2c controllers are in the Device Tree. Only register devices when not using DT. Signed-off-by: Noralf Tronnes I2C: Only register the I2C device for the current board revision i2c_bcm2708: Fix clock reference counting Fix grabbing lock from atomic context in i2c driver 2 main changes: - check for timeouts in the bcm2708_bsc_setup function as indicated by this comment: /* poll for transfer start bit (should only take 1-20 polls) */ This implies that the setup function can now fail so account for this everywhere it's called - Removed the clk_get_rate call from inside the setup function as it locks a mutex and that's not ok since we call it from under a spin lock. i2c-bcm2708: When using DT, leave the GPIO setup to pinctrl i2c-bcm2708: Increase timeouts to allow larger transfers Use the timeout value provided by the I2C_TIMEOUT ioctl when waiting for completion. The default timeout is 1 second. See: https://github.com/raspberrypi/linux/issues/260 i2c-bcm2708/BCM270X_DT: Add support for I2C2 The third I2C bus (I2C2) is normally reserved for HDMI use. Careless use of this bus can break an attached display - use with caution. It is recommended to disable accesses by VideoCore by setting hdmi_ignore_edid=1 or hdmi_edid_file=1 in config.txt. The interface is disabled by default - enable using the i2c2_iknowwhatimdoing DT parameter. bcm2708-spi: Don't use static pin configuration with DT Also remove superfluous error checking - the SPI framework ensures the validity of the chip_select value. i2c-bcm2708: Remove non-DT support Signed-off-by: Noralf Trønnes Set the BSC_CLKT clock streching timeout to 35ms as per SMBus specs. Fixes i2c_bcm2708: Write to FIFO correctly - v2 (#1574) * i2c: fix i2c_bcm2708: Clear FIFO before sending data Make sure FIFO gets cleared before trying to send data in case of a repeated start (COMBINED=Y). * i2c: fix i2c_bcm2708: Only write to FIFO when not full Check if FIFO can accept data before writing. To avoid a peripheral read on the last iteration of a loop, both bcm2708_bsc_fifo_fill and ~drain are changed as well. --- drivers/i2c/busses/Kconfig | 19 ++ drivers/i2c/busses/Makefile | 2 + drivers/i2c/busses/i2c-bcm2708.c | 512 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 533 insertions(+) create mode 100644 drivers/i2c/busses/i2c-bcm2708.c diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index 8adc0f1d7ad0ba72240fcae0ff2feb8e7c517456..c893a2b75eacb717b508bab60b1e5b175712fdf2 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -8,6 +8,25 @@ menu "I2C Hardware Bus support" comment "PC SMBus host controller drivers" depends on PCI +config I2C_BCM2708 + tristate "BCM2708 BSC" + depends on ARCH_BCM2835 + help + Enabling this option will add BSC (Broadcom Serial Controller) + support for the BCM2708. BSC is a Broadcom proprietary bus compatible + with I2C/TWI/SMBus. + +config I2C_BCM2708_BAUDRATE + prompt "BCM2708 I2C baudrate" + depends on I2C_BCM2708 + int + default 100000 + help + Set the I2C baudrate. This will alter the default value. A + different baudrate can be set by using a module parameter as well. If + no parameter is provided when loading, this is the value that will be + used. + config I2C_ALI1535 tristate "ALI 1535" depends on PCI diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile index 30b60855fbcd1e353d4dbd687d480a52f4811761..c1ca31b413255ee00cc9bfa94ff1340aac6e1100 100644 --- a/drivers/i2c/busses/Makefile +++ b/drivers/i2c/busses/Makefile @@ -2,6 +2,8 @@ # Makefile for the i2c bus drivers. # +obj-$(CONFIG_I2C_BCM2708) += i2c-bcm2708.o + # ACPI drivers obj-$(CONFIG_I2C_SCMI) += i2c-scmi.o diff --git a/drivers/i2c/busses/i2c-bcm2708.c b/drivers/i2c/busses/i2c-bcm2708.c new file mode 100644 index 0000000000000000000000000000000000000000..962f2e5c7455d91bf32925d785f5f16b83b049f8 --- /dev/null +++ b/drivers/i2c/busses/i2c-bcm2708.c @@ -0,0 +1,512 @@ +/* + * Driver for Broadcom BCM2708 BSC Controllers + * + * Copyright (C) 2012 Chris Boot & Frank Buss + * + * This driver is inspired by: + * i2c-ocores.c, by Peter Korsgaard + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* BSC register offsets */ +#define BSC_C 0x00 +#define BSC_S 0x04 +#define BSC_DLEN 0x08 +#define BSC_A 0x0c +#define BSC_FIFO 0x10 +#define BSC_DIV 0x14 +#define BSC_DEL 0x18 +#define BSC_CLKT 0x1c + +/* Bitfields in BSC_C */ +#define BSC_C_I2CEN 0x00008000 +#define BSC_C_INTR 0x00000400 +#define BSC_C_INTT 0x00000200 +#define BSC_C_INTD 0x00000100 +#define BSC_C_ST 0x00000080 +#define BSC_C_CLEAR_1 0x00000020 +#define BSC_C_CLEAR_2 0x00000010 +#define BSC_C_READ 0x00000001 + +/* Bitfields in BSC_S */ +#define BSC_S_CLKT 0x00000200 +#define BSC_S_ERR 0x00000100 +#define BSC_S_RXF 0x00000080 +#define BSC_S_TXE 0x00000040 +#define BSC_S_RXD 0x00000020 +#define BSC_S_TXD 0x00000010 +#define BSC_S_RXR 0x00000008 +#define BSC_S_TXW 0x00000004 +#define BSC_S_DONE 0x00000002 +#define BSC_S_TA 0x00000001 + +#define I2C_WAIT_LOOP_COUNT 200 + +#define DRV_NAME "bcm2708_i2c" + +static unsigned int baudrate; +module_param(baudrate, uint, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP); +MODULE_PARM_DESC(baudrate, "The I2C baudrate"); + +static bool combined = false; +module_param(combined, bool, 0644); +MODULE_PARM_DESC(combined, "Use combined transactions"); + +struct bcm2708_i2c { + struct i2c_adapter adapter; + + spinlock_t lock; + void __iomem *base; + int irq; + struct clk *clk; + u32 cdiv; + u32 clk_tout; + + struct completion done; + + struct i2c_msg *msg; + int pos; + int nmsgs; + bool error; +}; + +static inline u32 bcm2708_rd(struct bcm2708_i2c *bi, unsigned reg) +{ + return readl(bi->base + reg); +} + +static inline void bcm2708_wr(struct bcm2708_i2c *bi, unsigned reg, u32 val) +{ + writel(val, bi->base + reg); +} + +static inline void bcm2708_bsc_reset(struct bcm2708_i2c *bi) +{ + bcm2708_wr(bi, BSC_C, 0); + bcm2708_wr(bi, BSC_S, BSC_S_CLKT | BSC_S_ERR | BSC_S_DONE); +} + +static inline void bcm2708_bsc_fifo_drain(struct bcm2708_i2c *bi) +{ + while ((bi->pos < bi->msg->len) && (bcm2708_rd(bi, BSC_S) & BSC_S_RXD)) + bi->msg->buf[bi->pos++] = bcm2708_rd(bi, BSC_FIFO); +} + +static inline void bcm2708_bsc_fifo_fill(struct bcm2708_i2c *bi) +{ + while ((bi->pos < bi->msg->len) && (bcm2708_rd(bi, BSC_S) & BSC_S_TXD)) + bcm2708_wr(bi, BSC_FIFO, bi->msg->buf[bi->pos++]); +} + +static inline int bcm2708_bsc_setup(struct bcm2708_i2c *bi) +{ + u32 cdiv, s, clk_tout; + u32 c = BSC_C_I2CEN | BSC_C_INTD | BSC_C_ST | BSC_C_CLEAR_1; + int wait_loops = I2C_WAIT_LOOP_COUNT; + + /* Can't call clk_get_rate as it locks a mutex and here we are spinlocked. + * Use the value that we cached in the probe. + */ + cdiv = bi->cdiv; + clk_tout = bi->clk_tout; + + if (bi->msg->flags & I2C_M_RD) + c |= BSC_C_INTR | BSC_C_READ; + else + c |= BSC_C_INTT; + + bcm2708_wr(bi, BSC_CLKT, clk_tout); + bcm2708_wr(bi, BSC_DIV, cdiv); + bcm2708_wr(bi, BSC_A, bi->msg->addr); + bcm2708_wr(bi, BSC_DLEN, bi->msg->len); + if (combined) + { + /* Do the next two messages meet combined transaction criteria? + - Current message is a write, next message is a read + - Both messages to same slave address + - Write message can fit inside FIFO (16 bytes or less) */ + if ( (bi->nmsgs > 1) && + !(bi->msg[0].flags & I2C_M_RD) && (bi->msg[1].flags & I2C_M_RD) && + (bi->msg[0].addr == bi->msg[1].addr) && (bi->msg[0].len <= 16)) { + + /* Clear FIFO */ + bcm2708_wr(bi, BSC_C, BSC_C_CLEAR_1); + + /* Fill FIFO with entire write message (16 byte FIFO) */ + while (bi->pos < bi->msg->len) { + bcm2708_wr(bi, BSC_FIFO, bi->msg->buf[bi->pos++]); + } + /* Start write transfer (no interrupts, don't clear FIFO) */ + bcm2708_wr(bi, BSC_C, BSC_C_I2CEN | BSC_C_ST); + + /* poll for transfer start bit (should only take 1-20 polls) */ + do { + s = bcm2708_rd(bi, BSC_S); + } while (!(s & (BSC_S_TA | BSC_S_ERR | BSC_S_CLKT | BSC_S_DONE)) && --wait_loops >= 0); + + /* did we time out or some error occured? */ + if (wait_loops < 0 || (s & (BSC_S_ERR | BSC_S_CLKT))) { + return -1; + } + + /* Send next read message before the write transfer finishes. */ + bi->nmsgs--; + bi->msg++; + bi->pos = 0; + bcm2708_wr(bi, BSC_DLEN, bi->msg->len); + c = BSC_C_I2CEN | BSC_C_INTD | BSC_C_INTR | BSC_C_ST | BSC_C_READ; + } + } + bcm2708_wr(bi, BSC_C, c); + + return 0; +} + +static irqreturn_t bcm2708_i2c_interrupt(int irq, void *dev_id) +{ + struct bcm2708_i2c *bi = dev_id; + bool handled = true; + u32 s; + int ret; + + spin_lock(&bi->lock); + + /* we may see camera interrupts on the "other" I2C channel + Just return if we've not sent anything */ + if (!bi->nmsgs || !bi->msg) { + goto early_exit; + } + + s = bcm2708_rd(bi, BSC_S); + + if (s & (BSC_S_CLKT | BSC_S_ERR)) { + bcm2708_bsc_reset(bi); + bi->error = true; + + bi->msg = 0; /* to inform the that all work is done */ + bi->nmsgs = 0; + /* wake up our bh */ + complete(&bi->done); + } else if (s & BSC_S_DONE) { + bi->nmsgs--; + + if (bi->msg->flags & I2C_M_RD) { + bcm2708_bsc_fifo_drain(bi); + } + + bcm2708_bsc_reset(bi); + + if (bi->nmsgs) { + /* advance to next message */ + bi->msg++; + bi->pos = 0; + ret = bcm2708_bsc_setup(bi); + if (ret < 0) { + bcm2708_bsc_reset(bi); + bi->error = true; + bi->msg = 0; /* to inform the that all work is done */ + bi->nmsgs = 0; + /* wake up our bh */ + complete(&bi->done); + goto early_exit; + } + } else { + bi->msg = 0; /* to inform the that all work is done */ + bi->nmsgs = 0; + /* wake up our bh */ + complete(&bi->done); + } + } else if (s & BSC_S_TXW) { + bcm2708_bsc_fifo_fill(bi); + } else if (s & BSC_S_RXR) { + bcm2708_bsc_fifo_drain(bi); + } else { + handled = false; + } + +early_exit: + spin_unlock(&bi->lock); + + return handled ? IRQ_HANDLED : IRQ_NONE; +} + +static int bcm2708_i2c_master_xfer(struct i2c_adapter *adap, + struct i2c_msg *msgs, int num) +{ + struct bcm2708_i2c *bi = adap->algo_data; + unsigned long flags; + int ret; + + spin_lock_irqsave(&bi->lock, flags); + + reinit_completion(&bi->done); + bi->msg = msgs; + bi->pos = 0; + bi->nmsgs = num; + bi->error = false; + + ret = bcm2708_bsc_setup(bi); + + spin_unlock_irqrestore(&bi->lock, flags); + + /* check the result of the setup */ + if (ret < 0) + { + dev_err(&adap->dev, "transfer setup timed out\n"); + goto error_timeout; + } + + ret = wait_for_completion_timeout(&bi->done, adap->timeout); + if (ret == 0) { + dev_err(&adap->dev, "transfer timed out\n"); + goto error_timeout; + } + + ret = bi->error ? -EIO : num; + return ret; + +error_timeout: + spin_lock_irqsave(&bi->lock, flags); + bcm2708_bsc_reset(bi); + bi->msg = 0; /* to inform the interrupt handler that there's nothing else to be done */ + bi->nmsgs = 0; + spin_unlock_irqrestore(&bi->lock, flags); + return -ETIMEDOUT; +} + +static u32 bcm2708_i2c_functionality(struct i2c_adapter *adap) +{ + return I2C_FUNC_I2C | /*I2C_FUNC_10BIT_ADDR |*/ I2C_FUNC_SMBUS_EMUL; +} + +static struct i2c_algorithm bcm2708_i2c_algorithm = { + .master_xfer = bcm2708_i2c_master_xfer, + .functionality = bcm2708_i2c_functionality, +}; + +static int bcm2708_i2c_probe(struct platform_device *pdev) +{ + struct resource *regs; + int irq, err = -ENOMEM; + struct clk *clk; + struct bcm2708_i2c *bi; + struct i2c_adapter *adap; + unsigned long bus_hz; + u32 cdiv, clk_tout; + u32 baud; + + baud = CONFIG_I2C_BCM2708_BAUDRATE; + + if (pdev->dev.of_node) { + u32 bus_clk_rate; + pdev->id = of_alias_get_id(pdev->dev.of_node, "i2c"); + if (pdev->id < 0) { + dev_err(&pdev->dev, "alias is missing\n"); + return -EINVAL; + } + if (!of_property_read_u32(pdev->dev.of_node, + "clock-frequency", &bus_clk_rate)) + baud = bus_clk_rate; + else + dev_warn(&pdev->dev, + "Could not read clock-frequency property\n"); + } + + if (baudrate) + baud = baudrate; + + regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!regs) { + dev_err(&pdev->dev, "could not get IO memory\n"); + return -ENXIO; + } + + irq = platform_get_irq(pdev, 0); + if (irq < 0) { + dev_err(&pdev->dev, "could not get IRQ\n"); + return irq; + } + + clk = clk_get(&pdev->dev, NULL); + if (IS_ERR(clk)) { + dev_err(&pdev->dev, "could not find clk: %ld\n", PTR_ERR(clk)); + return PTR_ERR(clk); + } + + err = clk_prepare_enable(clk); + if (err) { + dev_err(&pdev->dev, "could not enable clk: %d\n", err); + goto out_clk_put; + } + + bi = kzalloc(sizeof(*bi), GFP_KERNEL); + if (!bi) + goto out_clk_disable; + + platform_set_drvdata(pdev, bi); + + adap = &bi->adapter; + adap->class = I2C_CLASS_HWMON | I2C_CLASS_DDC; + adap->algo = &bcm2708_i2c_algorithm; + adap->algo_data = bi; + adap->dev.parent = &pdev->dev; + adap->nr = pdev->id; + strlcpy(adap->name, dev_name(&pdev->dev), sizeof(adap->name)); + adap->dev.of_node = pdev->dev.of_node; + + switch (pdev->id) { + case 0: + adap->class = I2C_CLASS_HWMON; + break; + case 1: + adap->class = I2C_CLASS_DDC; + break; + case 2: + adap->class = I2C_CLASS_DDC; + break; + default: + dev_err(&pdev->dev, "can only bind to BSC 0, 1 or 2\n"); + err = -ENXIO; + goto out_free_bi; + } + + spin_lock_init(&bi->lock); + init_completion(&bi->done); + + bi->base = ioremap(regs->start, resource_size(regs)); + if (!bi->base) { + dev_err(&pdev->dev, "could not remap memory\n"); + goto out_free_bi; + } + + bi->irq = irq; + bi->clk = clk; + + err = request_irq(irq, bcm2708_i2c_interrupt, IRQF_SHARED, + dev_name(&pdev->dev), bi); + if (err) { + dev_err(&pdev->dev, "could not request IRQ: %d\n", err); + goto out_iounmap; + } + + bcm2708_bsc_reset(bi); + + err = i2c_add_numbered_adapter(adap); + if (err < 0) { + dev_err(&pdev->dev, "could not add I2C adapter: %d\n", err); + goto out_free_irq; + } + + bus_hz = clk_get_rate(bi->clk); + cdiv = bus_hz / baud; + if (cdiv > 0xffff) { + cdiv = 0xffff; + baud = bus_hz / cdiv; + } + + clk_tout = 35/1000*baud; //35ms timeout as per SMBus specs. + if (clk_tout > 0xffff) + clk_tout = 0xffff; + + bi->cdiv = cdiv; + bi->clk_tout = clk_tout; + + dev_info(&pdev->dev, "BSC%d Controller at 0x%08lx (irq %d) (baudrate %d)\n", + pdev->id, (unsigned long)regs->start, irq, baud); + + return 0; + +out_free_irq: + free_irq(bi->irq, bi); +out_iounmap: + iounmap(bi->base); +out_free_bi: + kfree(bi); +out_clk_disable: + clk_disable_unprepare(clk); +out_clk_put: + clk_put(clk); + return err; +} + +static int bcm2708_i2c_remove(struct platform_device *pdev) +{ + struct bcm2708_i2c *bi = platform_get_drvdata(pdev); + + platform_set_drvdata(pdev, NULL); + + i2c_del_adapter(&bi->adapter); + free_irq(bi->irq, bi); + iounmap(bi->base); + clk_disable_unprepare(bi->clk); + clk_put(bi->clk); + kfree(bi); + + return 0; +} + +static const struct of_device_id bcm2708_i2c_of_match[] = { + { .compatible = "brcm,bcm2708-i2c" }, + {}, +}; +MODULE_DEVICE_TABLE(of, bcm2708_i2c_of_match); + +static struct platform_driver bcm2708_i2c_driver = { + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + .of_match_table = bcm2708_i2c_of_match, + }, + .probe = bcm2708_i2c_probe, + .remove = bcm2708_i2c_remove, +}; + +// module_platform_driver(bcm2708_i2c_driver); + + +static int __init bcm2708_i2c_init(void) +{ + return platform_driver_register(&bcm2708_i2c_driver); +} + +static void __exit bcm2708_i2c_exit(void) +{ + platform_driver_unregister(&bcm2708_i2c_driver); +} + +module_init(bcm2708_i2c_init); +module_exit(bcm2708_i2c_exit); + + + +MODULE_DESCRIPTION("BSC controller driver for Broadcom BCM2708"); +MODULE_AUTHOR("Chris Boot "); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:" DRV_NAME); From 8876c932d6563079055f340a31d84b827d405c3d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= Date: Fri, 26 Jun 2015 14:27:06 +0200 Subject: [PATCH 053/165] char: broadcom: Add vcio module MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add module for accessing the mailbox property channel through /dev/vcio. Was previously in bcm2708-vcio. Signed-off-by: Noralf Trønnes --- drivers/char/broadcom/Kconfig | 6 ++ drivers/char/broadcom/Makefile | 1 + drivers/char/broadcom/vcio.c | 175 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 182 insertions(+) create mode 100644 drivers/char/broadcom/vcio.c diff --git a/drivers/char/broadcom/Kconfig b/drivers/char/broadcom/Kconfig index 87ea29bb65f98375e7326d9da74161fea5869514..014c7a15e85c6eff99f840fbc44fc6c83f2d9c91 100644 --- a/drivers/char/broadcom/Kconfig +++ b/drivers/char/broadcom/Kconfig @@ -15,6 +15,12 @@ config BCM2708_VCMEM help Helper for videocore memory access and total size allocation. +config BCM_VCIO + tristate "Mailbox userspace access" + depends on BCM2835_MBOX + help + Gives access to the mailbox property channel from userspace. + endif config BCM_VC_SM diff --git a/drivers/char/broadcom/Makefile b/drivers/char/broadcom/Makefile index d0ad04f8e49815e626814fd0375a24b8c1232dca..7d9cb3e0b1c3c4f64c74e3d1b664a4d94170a3e0 100644 --- a/drivers/char/broadcom/Makefile +++ b/drivers/char/broadcom/Makefile @@ -1,4 +1,5 @@ obj-$(CONFIG_BCM2708_VCMEM) += vc_mem.o +obj-$(CONFIG_BCM_VCIO) += vcio.o obj-$(CONFIG_BCM_VC_SM) += vc_sm/ obj-$(CONFIG_BCM2835_DEVGPIOMEM)+= bcm2835-gpiomem.o diff --git a/drivers/char/broadcom/vcio.c b/drivers/char/broadcom/vcio.c new file mode 100644 index 0000000000000000000000000000000000000000..c19bc2075c77879563ef5e59038b5a140fe5aba0 --- /dev/null +++ b/drivers/char/broadcom/vcio.c @@ -0,0 +1,175 @@ +/* + * Copyright (C) 2010 Broadcom + * Copyright (C) 2015 Noralf Trønnes + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define MBOX_CHAN_PROPERTY 8 + +#define VCIO_IOC_MAGIC 100 +#define IOCTL_MBOX_PROPERTY _IOWR(VCIO_IOC_MAGIC, 0, char *) + +static struct { + dev_t devt; + struct cdev cdev; + struct class *class; + struct rpi_firmware *fw; +} vcio; + +static int vcio_user_property_list(void *user) +{ + u32 *buf, size; + int ret; + + /* The first 32-bit is the size of the buffer */ + if (copy_from_user(&size, user, sizeof(size))) + return -EFAULT; + + buf = kmalloc(size, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + if (copy_from_user(buf, user, size)) { + kfree(buf); + return -EFAULT; + } + + /* Strip off protocol encapsulation */ + ret = rpi_firmware_property_list(vcio.fw, &buf[2], size - 12); + if (ret) { + kfree(buf); + return ret; + } + + buf[1] = RPI_FIRMWARE_STATUS_SUCCESS; + if (copy_to_user(user, buf, size)) + ret = -EFAULT; + + kfree(buf); + + return ret; +} + +static int vcio_device_open(struct inode *inode, struct file *file) +{ + try_module_get(THIS_MODULE); + + return 0; +} + +static int vcio_device_release(struct inode *inode, struct file *file) +{ + module_put(THIS_MODULE); + + return 0; +} + +static long vcio_device_ioctl(struct file *file, unsigned int ioctl_num, + unsigned long ioctl_param) +{ + switch (ioctl_num) { + case IOCTL_MBOX_PROPERTY: + return vcio_user_property_list((void *)ioctl_param); + default: + pr_err("unknown ioctl: %d\n", ioctl_num); + return -EINVAL; + } +} + +const struct file_operations vcio_fops = { + .unlocked_ioctl = vcio_device_ioctl, + .open = vcio_device_open, + .release = vcio_device_release, +}; + +static int __init vcio_init(void) +{ + struct device_node *np; + static struct device *dev; + int ret; + + np = of_find_compatible_node(NULL, NULL, + "raspberrypi,bcm2835-firmware"); +/* Uncomment this when we only boot with Device Tree + if (!of_device_is_available(np)) + return -ENODEV; +*/ + vcio.fw = rpi_firmware_get(np); + if (!vcio.fw) + return -ENODEV; + + ret = alloc_chrdev_region(&vcio.devt, 0, 1, "vcio"); + if (ret) { + pr_err("failed to allocate device number\n"); + return ret; + } + + cdev_init(&vcio.cdev, &vcio_fops); + vcio.cdev.owner = THIS_MODULE; + ret = cdev_add(&vcio.cdev, vcio.devt, 1); + if (ret) { + pr_err("failed to register device\n"); + goto err_unregister_chardev; + } + + /* + * Create sysfs entries + * 'bcm2708_vcio' is used for backwards compatibility so we don't break + * userspace. Raspian has a udev rule that changes the permissions. + */ + vcio.class = class_create(THIS_MODULE, "bcm2708_vcio"); + if (IS_ERR(vcio.class)) { + ret = PTR_ERR(vcio.class); + pr_err("failed to create class\n"); + goto err_cdev_del; + } + + dev = device_create(vcio.class, NULL, vcio.devt, NULL, "vcio"); + if (IS_ERR(dev)) { + ret = PTR_ERR(dev); + pr_err("failed to create device\n"); + goto err_class_destroy; + } + + return 0; + +err_class_destroy: + class_destroy(vcio.class); +err_cdev_del: + cdev_del(&vcio.cdev); +err_unregister_chardev: + unregister_chrdev_region(vcio.devt, 1); + + return ret; +} +module_init(vcio_init); + +static void __exit vcio_exit(void) +{ + device_destroy(vcio.class, vcio.devt); + class_destroy(vcio.class); + cdev_del(&vcio.cdev); + unregister_chrdev_region(vcio.devt, 1); +} +module_exit(vcio_exit); + +MODULE_AUTHOR("Gray Girling"); +MODULE_AUTHOR("Noralf Trønnes"); +MODULE_DESCRIPTION("Mailbox userspace access"); +MODULE_LICENSE("GPL"); From 1dfdb36a2391125d8fafa49ea19813f135fe1053 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= Date: Fri, 26 Jun 2015 14:25:01 +0200 Subject: [PATCH 054/165] firmware: bcm2835: Support ARCH_BCM270x MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Support booting without Device Tree. Turn on USB power. Load driver early because of lacking support for deferred probing in many drivers. Signed-off-by: Noralf Trønnes firmware: bcm2835: Don't turn on USB power The raspberrypi-power driver is now used to turn on USB power. This partly reverts commit: firmware: bcm2835: Support ARCH_BCM270x Signed-off-by: Noralf Trønnes --- drivers/firmware/raspberrypi.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/drivers/firmware/raspberrypi.c b/drivers/firmware/raspberrypi.c index dd506cd3a5b874f9e1acd07efb8cd151bb6145d1..3f070bd38a91511c986e3fb114b15bd4ac32634c 100644 --- a/drivers/firmware/raspberrypi.c +++ b/drivers/firmware/raspberrypi.c @@ -28,6 +28,8 @@ struct rpi_firmware { u32 enabled; }; +static struct platform_device *g_pdev; + static DEFINE_MUTEX(transaction_lock); static void response_callback(struct mbox_client *cl, void *msg) @@ -207,6 +209,7 @@ static int rpi_firmware_probe(struct platform_device *pdev) init_completion(&fw->c); platform_set_drvdata(pdev, fw); + g_pdev = pdev; rpi_firmware_print_firmware_revision(fw); @@ -218,6 +221,7 @@ static int rpi_firmware_remove(struct platform_device *pdev) struct rpi_firmware *fw = platform_get_drvdata(pdev); mbox_free_channel(fw->chan); + g_pdev = NULL; return 0; } @@ -230,7 +234,7 @@ static int rpi_firmware_remove(struct platform_device *pdev) */ struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node) { - struct platform_device *pdev = of_find_device_by_node(firmware_node); + struct platform_device *pdev = g_pdev; if (!pdev) return NULL; @@ -253,7 +257,18 @@ static struct platform_driver rpi_firmware_driver = { .probe = rpi_firmware_probe, .remove = rpi_firmware_remove, }; -module_platform_driver(rpi_firmware_driver); + +static int __init rpi_firmware_init(void) +{ + return platform_driver_register(&rpi_firmware_driver); +} +subsys_initcall(rpi_firmware_init); + +static void __init rpi_firmware_exit(void) +{ + platform_driver_unregister(&rpi_firmware_driver); +} +module_exit(rpi_firmware_exit); MODULE_AUTHOR("Eric Anholt "); MODULE_DESCRIPTION("Raspberry Pi firmware driver"); From c6605ccd47162385d7a23dbbdf405dace67904ab Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Mon, 11 May 2015 09:00:42 +0100 Subject: [PATCH 055/165] scripts: Add mkknlimg and knlinfo scripts from tools repo The Raspberry Pi firmware looks for a trailer on the kernel image to determine whether it was compiled with Device Tree support enabled. If the firmware finds a kernel without this trailer, or which has a trailer indicating that it isn't DT-capable, it disables DT support and reverts to using ATAGs. The mkknlimg utility adds that trailer, having first analysed the image to look for signs of DT support and the kernel version string. knlinfo displays the contents of the trailer in the given kernel image. scripts/mkknlimg: Add support for ARCH_BCM2835 Add a new trailer field indicating whether this is an ARCH_BCM2835 build, as opposed to MACH_BCM2708/9. If the loader finds this flag is set it changes the default base dtb file name from bcm270x... to bcm283y... Also update knlinfo to show the status of the field. scripts/mkknlimg: Improve ARCH_BCM2835 detection The board support code contains sufficient strings to be able to distinguish 2708 vs. 2835 builds, so remove the check for bcm2835-pm-wdt which could exist in either. Also, since the canned configuration is no longer built in (it's a module), remove the config string checking. See: https://github.com/raspberrypi/linux/issues/1157 scripts: Multi-platform support for mkknlimg and knlinfo The firmware uses tags in the kernel trailer to choose which dtb file to load. Current firmware loads bcm2835-*.dtb if the '283x' tag is true, otherwise it loads bcm270*.dtb. This scheme breaks if an image supports multiple platforms. This patch adds '270X' and '283X' tags to indicate support for RPi and upstream platforms, respectively. '283x' (note lower case 'x') is left for old firmware, and is only set if the image only supports upstream builds. scripts/mkknlimg: Append a trailer for all input Now that the firmware assumes an unsigned kernel is DT-capable, it is helpful to be able to mark a kernel as being non-DT-capable. Signed-off-by: Phil Elwell scripts/knlinfo: Decode DDTK atom Show the DDTK atom as being a boolean. Signed-off-by: Phil Elwell mkknlimg: Retain downstream-kernel detection With the death of ARCH_BCM2708 and ARCH_BCM2709, a new way is needed to determine if this is a "downstream" build that wants the firmware to load a bcm27xx .dtb. The vc_cma driver is used downstream but not upstream, making vc_cma_init a suitable predicate symbol. --- scripts/knlinfo | 171 +++++++++++++++++++++++++++++++++++ scripts/mkknlimg | 264 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 435 insertions(+) create mode 100755 scripts/knlinfo create mode 100755 scripts/mkknlimg diff --git a/scripts/knlinfo b/scripts/knlinfo new file mode 100755 index 0000000000000000000000000000000000000000..263ec937eaa70b4fd00bff18599db7f22671753c --- /dev/null +++ b/scripts/knlinfo @@ -0,0 +1,171 @@ +#!/usr/bin/env perl +# ---------------------------------------------------------------------- +# knlinfo by Phil Elwell for Raspberry Pi +# +# (c) 2014,2015 Raspberry Pi (Trading) Limited +# +# Licensed under the terms of the GNU General Public License. +# ---------------------------------------------------------------------- + +use strict; +use integer; + +use Fcntl ":seek"; + +my $trailer_magic = 'RPTL'; + +my %atom_formats = +( + 'DDTK' => \&format_bool, + 'DTOK' => \&format_bool, + 'KVer' => \&format_string, + '270X' => \&format_bool, + '283X' => \&format_bool, + '283x' => \&format_bool, +); + +if (@ARGV != 1) +{ + print ("Usage: knlinfo \n"); + exit(1); +} + +my $kernel_file = $ARGV[0]; + + +my ($atoms, $pos) = read_trailer($kernel_file); + +exit(1) if (!$atoms); + +printf("Kernel trailer found at %d/0x%x:\n", $pos, $pos); + +foreach my $atom (@$atoms) +{ + printf(" %s: %s\n", $atom->[0], format_atom($atom)); +} + +exit(0); + +sub read_trailer +{ + my ($kernel_file) = @_; + my $fh; + + if (!open($fh, '<', $kernel_file)) + { + print ("* Failed to open '$kernel_file'\n"); + return undef; + } + + if (!seek($fh, -12, SEEK_END)) + { + print ("* seek error in '$kernel_file'\n"); + return undef; + } + + my $last_bytes; + sysread($fh, $last_bytes, 12); + + my ($trailer_len, $data_len, $magic) = unpack('VVa4', $last_bytes); + + if (($magic ne $trailer_magic) || ($data_len != 4)) + { + print ("* no trailer\n"); + return undef; + } + if (!seek($fh, -12, SEEK_END)) + { + print ("* seek error in '$kernel_file'\n"); + return undef; + } + + $trailer_len -= 12; + + while ($trailer_len > 0) + { + if ($trailer_len < 8) + { + print ("* truncated atom header in trailer\n"); + return undef; + } + if (!seek($fh, -8, SEEK_CUR)) + { + print ("* seek error in '$kernel_file'\n"); + return undef; + } + $trailer_len -= 8; + + my $atom_hdr; + sysread($fh, $atom_hdr, 8); + my ($atom_len, $atom_type) = unpack('Va4', $atom_hdr); + + if ($trailer_len < $atom_len) + { + print ("* truncated atom data in trailer\n"); + return undef; + } + + my $rounded_len = (($atom_len + 3) & ~3); + if (!seek($fh, -(8 + $rounded_len), SEEK_CUR)) + { + print ("* seek error in '$kernel_file'\n"); + return undef; + } + $trailer_len -= $rounded_len; + + my $atom_data; + sysread($fh, $atom_data, $atom_len); + + if (!seek($fh, -$atom_len, SEEK_CUR)) + { + print ("* seek error in '$kernel_file'\n"); + return undef; + } + + push @$atoms, [ $atom_type, $atom_data ]; + } + + if (($$atoms[-1][0] eq "\x00\x00\x00\x00") && + ($$atoms[-1][1] eq "")) + { + pop @$atoms; + } + else + { + print ("* end marker missing from trailer\n"); + } + + return ($atoms, tell($fh)); +} + +sub format_atom +{ + my ($atom) = @_; + + my $format_func = $atom_formats{$atom->[0]} || \&format_hex; + return $format_func->($atom->[1]); +} + +sub format_bool +{ + my ($data) = @_; + return unpack('V', $data) ? 'y' : 'n'; +} + +sub format_int +{ + my ($data) = @_; + return unpack('V', $data); +} + +sub format_string +{ + my ($data) = @_; + return '"'.$data.'"'; +} + +sub format_hex +{ + my ($data) = @_; + return unpack('H*', $data); +} diff --git a/scripts/mkknlimg b/scripts/mkknlimg new file mode 100755 index 0000000000000000000000000000000000000000..60206de7fa9a49bd027c635306674a29a568652f --- /dev/null +++ b/scripts/mkknlimg @@ -0,0 +1,264 @@ +#!/usr/bin/env perl +# ---------------------------------------------------------------------- +# mkknlimg by Phil Elwell for Raspberry Pi +# based on extract-ikconfig by Dick Streefland +# +# (c) 2009,2010 Dick Streefland +# (c) 2014,2015 Raspberry Pi (Trading) Limited +# +# Licensed under the terms of the GNU General Public License. +# ---------------------------------------------------------------------- + +use strict; +use warnings; +use integer; + +use constant FLAG_PI => 0x01; +use constant FLAG_DTOK => 0x02; +use constant FLAG_DDTK => 0x04; +use constant FLAG_270X => 0x08; +use constant FLAG_283X => 0x10; + +my $trailer_magic = 'RPTL'; + +my $tmpfile1 = "/tmp/mkknlimg_$$.1"; +my $tmpfile2 = "/tmp/mkknlimg_$$.2"; + +my $dtok = 0; +my $ddtk = 0; +my $is_270x = 0; +my $is_283x = 0; + +while (@ARGV && ($ARGV[0] =~ /^-/)) +{ + my $arg = shift(@ARGV); + if ($arg eq '--dtok') + { + $dtok = 1; + } + elsif ($arg eq '--ddtk') + { + $ddtk = 1; + } + elsif ($arg eq '--270x') + { + $is_270x = 1; + } + elsif ($arg eq '--283x') + { + $is_283x = 1; + } + else + { + print ("* Unknown option '$arg'\n"); + usage(); + } +} + +usage() if (@ARGV != 2); + +my $kernel_file = $ARGV[0]; +my $out_file = $ARGV[1]; + +if (! -r $kernel_file) +{ + print ("* File '$kernel_file' not found\n"); + usage(); +} + +my $wanted_strings = +{ + 'bcm2708_fb' => FLAG_PI, + 'brcm,bcm2835-mmc' => FLAG_PI, + 'brcm,bcm2835-sdhost' => FLAG_PI, + 'brcm,bcm2708-pinctrl' => FLAG_PI | FLAG_DTOK, + 'brcm,bcm2835-gpio' => FLAG_PI | FLAG_DTOK, + 'brcm,bcm2708' => FLAG_PI | FLAG_DTOK | FLAG_270X, + 'brcm,bcm2709' => FLAG_PI | FLAG_DTOK | FLAG_270X, + 'brcm,bcm2835' => FLAG_PI | FLAG_DTOK | FLAG_283X, + 'brcm,bcm2836' => FLAG_PI | FLAG_DTOK | FLAG_283X, + 'of_cfs_init' => FLAG_DTOK | FLAG_DDTK, + 'vc_cma_init' => FLAG_PI | FLAG_270X, +}; + +my $res = try_extract($kernel_file, $tmpfile1); +$res ||= try_decompress('\037\213\010', 'xy', 'gunzip', 0, + $kernel_file, $tmpfile1, $tmpfile2); +$res ||= try_decompress('\3757zXZ\000', 'abcde', 'unxz --single-stream', -1, + $kernel_file, $tmpfile1, $tmpfile2); +$res ||= try_decompress('BZh', 'xy', 'bunzip2', 0, + $kernel_file, $tmpfile1, $tmpfile2); +$res ||= try_decompress('\135\0\0\0', 'xxx', 'unlzma', 0, + $kernel_file, $tmpfile1, $tmpfile2); +$res ||= try_decompress('\211\114\132', 'xy', 'lzop -d', 0, + $kernel_file, $tmpfile1, $tmpfile2); +$res ||= try_decompress('\002\041\114\030', 'xy', 'lz4 -d', 1, + $kernel_file, $tmpfile1, $tmpfile2); + +my $append_trailer; +my $trailer; +my $kver = '?'; + +$append_trailer = 1; + +if ($res) +{ + $kver = $res->{'kver'} || '?'; + my $flags = $res->{'flags'}; + print("Version: $kver\n"); + + if ($flags & FLAG_PI) + { + $dtok ||= ($flags & FLAG_DTOK) != 0; + $is_270x ||= ($flags & FLAG_270X) != 0; + $is_283x ||= ($flags & FLAG_283X) != 0; + $ddtk ||= ($flags & FLAG_DDTK) != 0; + } + else + { + print ("* This doesn't look like a Raspberry Pi kernel.\n"); + } +} +elsif (!$dtok) +{ + print ("* Is this a valid kernel?\n"); +} + +if ($append_trailer) +{ + printf("DT: %s\n", $dtok ? "y" : "n"); + printf("DDT: %s\n", $ddtk ? "y" : "n"); + printf("270x: %s\n", $is_270x ? "y" : "n"); + printf("283x: %s\n", $is_283x ? "y" : "n"); + + my @atoms; + + push @atoms, [ $trailer_magic, pack('V', 0) ]; + push @atoms, [ 'KVer', $kver ]; + push @atoms, [ 'DTOK', pack('V', $dtok) ]; + push @atoms, [ 'DDTK', pack('V', $ddtk) ]; + push @atoms, [ '270X', pack('V', $is_270x) ]; + push @atoms, [ '283X', pack('V', $is_283x) ]; + push @atoms, [ '283x', pack('V', $is_283x && !$is_270x) ]; + + $trailer = pack_trailer(\@atoms); + $atoms[0]->[1] = pack('V', length($trailer)); + + $trailer = pack_trailer(\@atoms); +} + +my $ofh; +my $total_len = 0; + +if ($out_file eq $kernel_file) +{ + die "* Failed to open '$out_file' for append\n" + if (!open($ofh, '>>', $out_file)); + $total_len = tell($ofh); +} +else +{ + die "* Failed to open '$kernel_file'\n" + if (!open(my $ifh, '<', $kernel_file)); + die "* Failed to create '$out_file'\n" + if (!open($ofh, '>', $out_file)); + + my $copybuf; + while (1) + { + my $bytes = sysread($ifh, $copybuf, 64*1024); + last if (!$bytes); + syswrite($ofh, $copybuf, $bytes); + $total_len += $bytes; + } + close($ifh); +} + +if ($trailer) +{ + # Pad to word-alignment + syswrite($ofh, "\x000\x000\x000", (-$total_len & 0x3)); + syswrite($ofh, $trailer); +} + +close($ofh); + +exit($trailer ? 0 : 1); + +END { + unlink($tmpfile1) if ($tmpfile1); + unlink($tmpfile2) if ($tmpfile2); +} + + +sub usage +{ + print ("Usage: mkknlimg [--dtok] [--270x] [--283x] \n"); + exit(1); +} + +sub try_extract +{ + my ($knl, $tmp) = @_; + + my $ver = `strings "$knl" | grep -a -E "^Linux version [1-9]"`; + + return undef if (!$ver); + + chomp($ver); + + my $res = { 'kver'=>$ver }; + $res->{'flags'} = strings_to_flags($knl, $wanted_strings); + + return $res; +} + + +sub try_decompress +{ + my ($magic, $subst, $zcat, $idx, $knl, $tmp1, $tmp2) = @_; + + my $pos = `tr "$magic\n$subst" "\n$subst=" < "$knl" | grep -abo "^$subst"`; + if ($pos) + { + chomp($pos); + $pos = (split(/[\r\n]+/, $pos))[$idx]; + return undef if (!defined($pos)); + $pos =~ s/:.*[\r\n]*$//s; + my $cmd = "tail -c+$pos \"$knl\" | $zcat > $tmp2 2> /dev/null"; + my $err = (system($cmd) >> 8); + return undef if (($err != 0) && ($err != 2)); + + return try_extract($tmp2, $tmp1); + } + + return undef; +} + +sub strings_to_flags +{ + my ($knl, $strings) = @_; + my $string_pattern = '^('.join('|', keys(%$strings)).')$'; + my $flags = 0; + + my @matches = `strings \"$knl\" | grep -E \"$string_pattern\"`; + foreach my $match (@matches) + { + chomp($match); + $flags |= $strings->{$match}; + } + + return $flags; +} + +sub pack_trailer +{ + my ($atoms) = @_; + my $trailer = pack('VV', 0, 0); + for (my $i = $#$atoms; $i>=0; $i--) + { + my $atom = $atoms->[$i]; + $trailer .= pack('a*x!4Va4', $atom->[1], length($atom->[1]), $atom->[0]); + } + return $trailer; +} From 70c91958bd15ee39b973b2ac6540dbdde55f2e51 Mon Sep 17 00:00:00 2001 From: notro Date: Wed, 9 Jul 2014 14:46:08 +0200 Subject: [PATCH 056/165] BCM2708: Add core Device Tree support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add the bare minimum needed to boot BCM2708 from a Device Tree. Signed-off-by: Noralf Tronnes BCM2708: DT: change 'axi' nodename to 'soc' Change DT node named 'axi' to 'soc' so it matches ARCH_BCM2835. The VC4 bootloader fills in certain properties in the 'axi' subtree, but since this is part of an upstreaming effort, the name is changed. Signed-off-by: Noralf Tronnes notro@tronnes.org BCM2708_DT: Correct length of the peripheral space Use dts-dirs feature for overlays. The kernel makefiles have a dts-dirs target that is for vendor subdirectories. Using this fixes the install_dtbs target, which previously did not install the overlays. BCM270X_DT: configure I2S DMA channels Signed-off-by: Matthias Reichl BCM270X_DT: switch to bcm2835-i2s I2S soundcard drivers with proper devicetree support (i.e. not linking to the cpu_dai/platform via name but to cpu/platform via of_node) will work out of the box without any modifications. When the kernel is compiled without devicetree support the platform code will instantiate the bcm2708-i2s driver and I2S soundcard drivers will link to it via name, as before. Signed-off-by: Matthias Reichl SDIO-overlay: add poll_once-boolean parameter Add paramter to toggle sdio-device-polling done every second or once at boot-time. Signed-off-by: Patrick Boettcher BCM270X_DT: Make mmc overlay compatible with current firmware The original DT overlay logic followed a merge-then-patch procedure, i.e. parameters are applied to the loaded overlay before the overlay is merged into the base DTB. This sequence has been changed to patch-then-merge, in order to support parameterised node names, and to protect against bad overlays. As a result, overrides (parameters) must only target labels in the overlay, but the overlay can obviously target nodes in the base DTB. mmc-overlay.dts (that switches back to the original mmc sdcard driver) is the only overlay violating that rule, and this patch fixes it. bcm270x_dt: Use the sdhost MMC controller by default The "mmc" overlay reverts to using the other controller. squash: Add cprman to dt BCM270X_DT: Use clk_core for I2C interfaces BCM270X_DT: Use bcm283x.dtsi, bcm2835.dtsi and bcm2836.dtsi The mainline Device Tree files are quite close to downstream now. Let's use bcm283x.dtsi, bcm2835.dtsi and bcm2836.dtsi as base files for our dts files. Mainline dts files are based on these files: bcm2835-rpi.dtsi bcm2835.dtsi bcm2836.dtsi bcm283x.dtsi Current downstream are based on these: bcm2708.dtsi bcm2709.dtsi bcm2710.dtsi bcm2708_common.dtsi This patch introduces this dependency: bcm2708.dtsi bcm2709.dtsi bcm2708-rpi.dtsi bcm270x.dtsi bcm2835.dtsi bcm2836.dtsi bcm283x.dtsi And: bcm2710.dtsi bcm2708-rpi.dtsi bcm270x.dtsi bcm283x.dtsi bcm270x.dtsi contains the downstream bcm283x.dtsi diff. bcm2708-rpi.dtsi is the downstream version of bcm2835-rpi.dtsi. Other changes: - The led node has moved from /soc/leds to /leds. This is not a problem since the label is used to reference it. - The clk_osc reg property changes from 6 to 3. - The gpu nodes has their interrupt property set in the base file. - the clocks label does not point to the /clocks node anymore, but points to the cprman node. This is not a problem since the overlays that use the clock node refer to it directly: target-path = "/clocks"; - some nodes now have 2 labels since mainline and downstream differs in this respect: cprman/clocks, spi0/spi, gpu/vc4. - some nodes doesn't have an explicit status = "okay" since they're not disabled in the base file: watchdog and random. - gpiomem doesn't need an explicit status = "okay". - bcm2708-rpi-cm.dts got the hpd-gpios property from bcm2708_common.dtsi, it's now set directly in that file. - bcm2709-rpi-2-b.dts has the timer node moved from /soc/timer to /timer. - Removed clock-frequency property on the bcm{2709,2710}.dtsi timer nodes. Signed-off-by: Noralf Trønnes BCM270X_DT: Use raspberrypi-power to turn on USB power Use the raspberrypi-power driver to turn on USB power. Signed-off-by: Noralf Trønnes BCM270X_DT: Add a .dtbo target, use for overlays Change the filenames and extensions to keep the pre-DDT style of overlay (-overlay.dtb) distinct from new ones that use a different style of local fixups (.dtbo), and to match other platforms. The RPi firmware uses the DDTK trailer atom to choose which type of overlay to use for each kernel. Signed-off-by: Phil Elwell BCM270X_DT: Don't generate "linux,phandle" props The EPAPR standard says to use "phandle" properties to store phandles, rather than the deprecated "linux,phandle" version. By default, dtc generates both, but adding "-H epapr" causes it to only generate "phandle"s, saving some space and clutter. Signed-off-by: Phil Elwell BCM270X_DT: Add overlay for enc28j60 on SPI2 Works on SPI2 for compute module BCM270X_DT: Add midi-uart0 overlay MIDI requires 31.25kbaud, a baudrate unsupported by Linux. The midi-uart0 overlay configures uart0 (ttyAMA0) to use a fake clock so that requesting 38.4kbaud actually gets 31.25kbaud. Signed-off-by: Phil Elwell BCM270X_DT: Add i2c-sensor overlay The i2c-sensor overlay is a container for various pressure and temperature sensors, currently bmp085 and bmp280. The standalone bmp085_i2c-sensor overlay is now deprecated. Signed-off-by: Phil Elwell BCM270X_DT: overlays/*-overlay.dtb -> overlays/*.dtbo (#1752) We now create overlays as .dtbo files. build: support for .dtbo files for dtb overlays Kernel 4.4.6+ on RaspberryPi support .dtbo files for overlays, instead of .dtb. Patch the kernel, which has faulty rules to generate .dtbo the way yocto does Signed-off-by: Herve Jourdain Signed-off-by: Khem Raj --- arch/arm/Makefile | 2 + arch/arm/boot/.gitignore | 2 +- arch/arm/boot/dts/Makefile | 20 + arch/arm/boot/dts/bcm2708-rpi-0-w.dts | 197 +++ arch/arm/boot/dts/bcm2708-rpi-b-plus.dts | 157 +++ arch/arm/boot/dts/bcm2708-rpi-b.dts | 147 ++ arch/arm/boot/dts/bcm2708-rpi-cm.dts | 110 ++ arch/arm/boot/dts/bcm2708-rpi-cm.dtsi | 50 + arch/arm/boot/dts/bcm2708-rpi.dtsi | 113 ++ arch/arm/boot/dts/bcm2708.dtsi | 16 + arch/arm/boot/dts/bcm2709-rpi-2-b.dts | 157 +++ arch/arm/boot/dts/bcm2709.dtsi | 22 + arch/arm/boot/dts/bcm270x.dtsi | 157 +++ arch/arm/boot/dts/bcm2710-rpi-3-b.dts | 226 +++ arch/arm/boot/dts/bcm2710-rpi-cm3.dts | 167 +++ arch/arm/boot/dts/bcm2710.dtsi | 148 ++ arch/arm/boot/dts/bcm283x.dtsi | 1 + arch/arm/boot/dts/overlays/Makefile | 114 ++ arch/arm/boot/dts/overlays/README | 1458 ++++++++++++++++++++ .../arm/boot/dts/overlays/adau1977-adc-overlay.dts | 40 + .../boot/dts/overlays/adau7002-simple-overlay.dts | 52 + arch/arm/boot/dts/overlays/ads1015-overlay.dts | 98 ++ arch/arm/boot/dts/overlays/ads1115-overlay.dts | 103 ++ arch/arm/boot/dts/overlays/ads7846-overlay.dts | 89 ++ .../dts/overlays/akkordion-iqdacplus-overlay.dts | 49 + .../allo-piano-dac-pcm512x-audio-overlay.dts | 54 + arch/arm/boot/dts/overlays/at86rf233-overlay.dts | 57 + .../dts/overlays/audioinjector-addons-overlay.dts | 50 + .../audioinjector-wm8731-audio-overlay.dts | 39 + arch/arm/boot/dts/overlays/audremap-overlay.dts | 19 + .../dts/overlays/bmp085_i2c-sensor-overlay.dts | 23 + arch/arm/boot/dts/overlays/dht11-overlay.dts | 39 + .../boot/dts/overlays/dionaudio-loco-overlay.dts | 39 + .../dts/overlays/dionaudio-loco-v2-overlay.dts | 49 + arch/arm/boot/dts/overlays/dpi18-overlay.dts | 31 + arch/arm/boot/dts/overlays/dpi24-overlay.dts | 31 + arch/arm/boot/dts/overlays/dwc-otg-overlay.dts | 20 + arch/arm/boot/dts/overlays/dwc2-overlay.dts | 29 + arch/arm/boot/dts/overlays/enc28j60-overlay.dts | 53 + .../boot/dts/overlays/enc28j60-spi2-overlay.dts | 47 + arch/arm/boot/dts/overlays/fe-pi-audio-overlay.dts | 70 + arch/arm/boot/dts/overlays/gpio-ir-overlay.dts | 44 + .../boot/dts/overlays/gpio-poweroff-overlay.dts | 34 + .../boot/dts/overlays/hifiberry-amp-overlay.dts | 39 + .../boot/dts/overlays/hifiberry-dac-overlay.dts | 34 + .../dts/overlays/hifiberry-dacplus-overlay.dts | 59 + .../boot/dts/overlays/hifiberry-digi-overlay.dts | 41 + .../dts/overlays/hifiberry-digi-pro-overlay.dts | 43 + arch/arm/boot/dts/overlays/hy28a-overlay.dts | 93 ++ arch/arm/boot/dts/overlays/hy28b-overlay.dts | 148 ++ arch/arm/boot/dts/overlays/i2c-bcm2708-overlay.dts | 13 + arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts | 43 + arch/arm/boot/dts/overlays/i2c-mux-overlay.dts | 139 ++ .../boot/dts/overlays/i2c-pwm-pca9685a-overlay.dts | 26 + arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts | 83 ++ arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts | 41 + .../arm/boot/dts/overlays/i2c0-bcm2708-overlay.dts | 61 + .../arm/boot/dts/overlays/i2c1-bcm2708-overlay.dts | 37 + .../boot/dts/overlays/i2s-gpio28-31-overlay.dts | 18 + arch/arm/boot/dts/overlays/iqaudio-dac-overlay.dts | 46 + .../boot/dts/overlays/iqaudio-dacplus-overlay.dts | 49 + .../overlays/iqaudio-digi-wm8804-audio-overlay.dts | 47 + .../arm/boot/dts/overlays/justboom-dac-overlay.dts | 46 + .../boot/dts/overlays/justboom-digi-overlay.dts | 41 + arch/arm/boot/dts/overlays/lirc-rpi-overlay.dts | 57 + arch/arm/boot/dts/overlays/mcp23017-overlay.dts | 54 + arch/arm/boot/dts/overlays/mcp23s17-overlay.dts | 732 ++++++++++ .../arm/boot/dts/overlays/mcp2515-can0-overlay.dts | 73 + .../arm/boot/dts/overlays/mcp2515-can1-overlay.dts | 73 + arch/arm/boot/dts/overlays/mcp3008-overlay.dts | 205 +++ arch/arm/boot/dts/overlays/midi-uart0-overlay.dts | 36 + arch/arm/boot/dts/overlays/mmc-overlay.dts | 38 + arch/arm/boot/dts/overlays/mz61581-overlay.dts | 117 ++ arch/arm/boot/dts/overlays/pi3-act-led-overlay.dts | 27 + .../boot/dts/overlays/pi3-disable-bt-overlay.dts | 46 + .../boot/dts/overlays/pi3-disable-wifi-overlay.dts | 13 + .../boot/dts/overlays/pi3-miniuart-bt-overlay.dts | 64 + arch/arm/boot/dts/overlays/piscreen-overlay.dts | 102 ++ arch/arm/boot/dts/overlays/piscreen2r-overlay.dts | 106 ++ arch/arm/boot/dts/overlays/pisound-overlay.dts | 120 ++ arch/arm/boot/dts/overlays/pitft22-overlay.dts | 69 + .../dts/overlays/pitft28-capacitive-overlay.dts | 91 ++ .../dts/overlays/pitft28-resistive-overlay.dts | 121 ++ .../dts/overlays/pitft35-resistive-overlay.dts | 121 ++ arch/arm/boot/dts/overlays/pps-gpio-overlay.dts | 35 + arch/arm/boot/dts/overlays/pwm-2chan-overlay.dts | 47 + arch/arm/boot/dts/overlays/pwm-overlay.dts | 43 + arch/arm/boot/dts/overlays/qca7000-overlay.dts | 52 + arch/arm/boot/dts/overlays/raspidac3-overlay.dts | 49 + .../boot/dts/overlays/rpi-backlight-overlay.dts | 21 + .../dts/overlays/rpi-cirrus-wm5102-overlay.dts | 146 ++ arch/arm/boot/dts/overlays/rpi-dac-overlay.dts | 34 + arch/arm/boot/dts/overlays/rpi-display-overlay.dts | 89 ++ arch/arm/boot/dts/overlays/rpi-ft5406-overlay.dts | 17 + arch/arm/boot/dts/overlays/rpi-proto-overlay.dts | 39 + arch/arm/boot/dts/overlays/rpi-sense-overlay.dts | 47 + .../overlays/rra-digidac1-wm8741-audio-overlay.dts | 49 + .../boot/dts/overlays/sc16is750-i2c-overlay.dts | 37 + .../boot/dts/overlays/sc16is752-spi1-overlay.dts | 61 + arch/arm/boot/dts/overlays/sdhost-overlay.dts | 32 + arch/arm/boot/dts/overlays/sdio-1bit-overlay.dts | 36 + arch/arm/boot/dts/overlays/sdio-overlay.dts | 36 + arch/arm/boot/dts/overlays/sdtweak-overlay.dts | 23 + arch/arm/boot/dts/overlays/smi-dev-overlay.dts | 18 + arch/arm/boot/dts/overlays/smi-nand-overlay.dts | 69 + arch/arm/boot/dts/overlays/smi-overlay.dts | 37 + .../boot/dts/overlays/spi-gpio35-39-overlay.dts | 31 + arch/arm/boot/dts/overlays/spi-rtc-overlay.dts | 33 + arch/arm/boot/dts/overlays/spi0-cs-overlay.dts | 29 + arch/arm/boot/dts/overlays/spi0-hw-cs-overlay.dts | 26 + arch/arm/boot/dts/overlays/spi1-1cs-overlay.dts | 57 + arch/arm/boot/dts/overlays/spi1-2cs-overlay.dts | 69 + arch/arm/boot/dts/overlays/spi1-3cs-overlay.dts | 81 ++ arch/arm/boot/dts/overlays/spi2-1cs-overlay.dts | 57 + arch/arm/boot/dts/overlays/spi2-2cs-overlay.dts | 69 + arch/arm/boot/dts/overlays/spi2-3cs-overlay.dts | 81 ++ arch/arm/boot/dts/overlays/tinylcd35-overlay.dts | 224 +++ arch/arm/boot/dts/overlays/uart1-overlay.dts | 38 + .../arm/boot/dts/overlays/vc4-fkms-v3d-overlay.dts | 89 ++ arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts | 151 ++ arch/arm/boot/dts/overlays/vga666-overlay.dts | 30 + arch/arm/boot/dts/overlays/w1-gpio-overlay.dts | 39 + .../boot/dts/overlays/w1-gpio-pullup-overlay.dts | 41 + arch/arm/boot/dts/overlays/wittypi-overlay.dts | 44 + scripts/Makefile.dtbinst | 10 +- scripts/Makefile.lib | 11 + 126 files changed, 10058 insertions(+), 4 deletions(-) create mode 100644 arch/arm/boot/dts/bcm2708-rpi-0-w.dts create mode 100644 arch/arm/boot/dts/bcm2708-rpi-b-plus.dts create mode 100644 arch/arm/boot/dts/bcm2708-rpi-b.dts create mode 100644 arch/arm/boot/dts/bcm2708-rpi-cm.dts create mode 100644 arch/arm/boot/dts/bcm2708-rpi-cm.dtsi create mode 100644 arch/arm/boot/dts/bcm2708-rpi.dtsi create mode 100644 arch/arm/boot/dts/bcm2708.dtsi create mode 100644 arch/arm/boot/dts/bcm2709-rpi-2-b.dts create mode 100644 arch/arm/boot/dts/bcm2709.dtsi create mode 100644 arch/arm/boot/dts/bcm270x.dtsi create mode 100644 arch/arm/boot/dts/bcm2710-rpi-3-b.dts create mode 100644 arch/arm/boot/dts/bcm2710-rpi-cm3.dts create mode 100644 arch/arm/boot/dts/bcm2710.dtsi create mode 100644 arch/arm/boot/dts/overlays/Makefile create mode 100644 arch/arm/boot/dts/overlays/README create mode 100644 arch/arm/boot/dts/overlays/adau1977-adc-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/adau7002-simple-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/ads1015-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/ads1115-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/ads7846-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/akkordion-iqdacplus-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/allo-piano-dac-pcm512x-audio-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/at86rf233-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/audioinjector-addons-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/audioinjector-wm8731-audio-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/audremap-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/bmp085_i2c-sensor-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/dht11-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/dionaudio-loco-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/dionaudio-loco-v2-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/dpi18-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/dpi24-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/dwc-otg-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/dwc2-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/enc28j60-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/enc28j60-spi2-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/fe-pi-audio-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/gpio-ir-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/gpio-poweroff-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/hifiberry-amp-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/hifiberry-dac-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/hifiberry-dacplus-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/hifiberry-digi-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/hifiberry-digi-pro-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/hy28a-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/hy28b-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/i2c-bcm2708-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/i2c-mux-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/i2c-pwm-pca9685a-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/i2c0-bcm2708-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/i2c1-bcm2708-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/i2s-gpio28-31-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/iqaudio-dac-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/iqaudio-dacplus-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/iqaudio-digi-wm8804-audio-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/justboom-dac-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/justboom-digi-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/lirc-rpi-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/mcp23017-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/mcp23s17-overlay.dts create mode 100755 arch/arm/boot/dts/overlays/mcp2515-can0-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/mcp2515-can1-overlay.dts create mode 100755 arch/arm/boot/dts/overlays/mcp3008-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/midi-uart0-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/mmc-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/mz61581-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/pi3-act-led-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/pi3-disable-bt-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/pi3-disable-wifi-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/pi3-miniuart-bt-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/piscreen-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/piscreen2r-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/pisound-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/pitft22-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/pitft28-capacitive-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/pitft28-resistive-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/pitft35-resistive-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/pps-gpio-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/pwm-2chan-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/pwm-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/qca7000-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/raspidac3-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/rpi-backlight-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/rpi-cirrus-wm5102-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/rpi-dac-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/rpi-display-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/rpi-ft5406-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/rpi-proto-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/rpi-sense-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/rra-digidac1-wm8741-audio-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/sc16is750-i2c-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/sdhost-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/sdio-1bit-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/sdio-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/sdtweak-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/smi-dev-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/smi-nand-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/smi-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/spi-gpio35-39-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/spi-rtc-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/spi0-cs-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/spi0-hw-cs-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/spi1-1cs-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/spi1-2cs-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/spi1-3cs-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/spi2-1cs-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/spi2-2cs-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/spi2-3cs-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/tinylcd35-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/uart1-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/vc4-fkms-v3d-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/vga666-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/w1-gpio-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/w1-gpio-pullup-overlay.dts create mode 100644 arch/arm/boot/dts/overlays/wittypi-overlay.dts diff --git a/arch/arm/Makefile b/arch/arm/Makefile index ab30cc634d024fdb17b379adac2f2d9fe049f1ff..d92ade49c858e0a50ea7dd7391fccdbfa9479aab 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -338,6 +338,8 @@ $(INSTALL_TARGETS): %.dtb: | scripts $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@ +%.dtbo: | scripts + $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@ PHONY += dtbs dtbs_install diff --git a/arch/arm/boot/.gitignore b/arch/arm/boot/.gitignore index 3c79f85975aaa26c7c2e353fefc54d71d89bc5bf..eaaeb17e5986e5f7178b2851169444ac7e45be8d 100644 --- a/arch/arm/boot/.gitignore +++ b/arch/arm/boot/.gitignore @@ -3,4 +3,4 @@ zImage xipImage bootpImage uImage -*.dtb +*.dtb* diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 011808490fed73ee3bc676f96449411119983b0d..35b4276d46354ce02af6456b619e51803ff8232f 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -1,5 +1,14 @@ ifeq ($(CONFIG_OF),y) +dtb-$(CONFIG_ARCH_BCM2835) += \ + bcm2708-rpi-b.dtb \ + bcm2708-rpi-b-plus.dtb \ + bcm2708-rpi-cm.dtb \ + bcm2708-rpi-0-w.dtb \ + bcm2709-rpi-2-b.dtb \ + bcm2710-rpi-3-b.dtb \ + bcm2710-rpi-cm3.dtb + dtb-$(CONFIG_ARCH_ALPINE) += \ alpine-db.dtb dtb-$(CONFIG_MACH_ARTPEC6) += \ @@ -1010,10 +1019,21 @@ dtb-$(CONFIG_ARCH_ZX) += zx296702-ad1.dtb dtb-$(CONFIG_ARCH_ASPEED) += aspeed-bmc-opp-palmetto.dtb \ aspeed-bmc-opp-romulus.dtb \ aspeed-ast2500-evb.dtb + +targets += dtbs dtbs_install +targets += $(dtb-y) + endif dtstree := $(srctree)/$(src) dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts)) always := $(dtb-y) +subdir-y := overlays clean-files := *.dtb + +# Enable fixups to support overlays on BCM2835 platforms +ifeq ($(CONFIG_ARCH_BCM2835),y) + DTC_FLAGS ?= -@ -H epapr + dts-dirs += overlays +endif diff --git a/arch/arm/boot/dts/bcm2708-rpi-0-w.dts b/arch/arm/boot/dts/bcm2708-rpi-0-w.dts new file mode 100644 index 0000000000000000000000000000000000000000..db0f99ddf2f46e83827d56e21c4846dd0b414c63 --- /dev/null +++ b/arch/arm/boot/dts/bcm2708-rpi-0-w.dts @@ -0,0 +1,197 @@ +/dts-v1/; + +#include "bcm2708.dtsi" + +/ { + model = "Raspberry Pi Zero W"; +}; + +&gpio { + sdhost_pins: sdhost_pins { + brcm,pins = <48 49 50 51 52 53>; + brcm,function = <4>; /* alt0 */ + }; + + spi0_pins: spi0_pins { + brcm,pins = <9 10 11>; + brcm,function = <4>; /* alt0 */ + }; + + spi0_cs_pins: spi0_cs_pins { + brcm,pins = <8 7>; + brcm,function = <1>; /* output */ + }; + + i2c0_pins: i2c0 { + brcm,pins = <0 1>; + brcm,function = <4>; + }; + + i2c1_pins: i2c1 { + brcm,pins = <2 3>; + brcm,function = <4>; + }; + + i2s_pins: i2s { + brcm,pins = <18 19 20 21>; + brcm,function = <4>; /* alt0 */ + }; + + sdio_pins: sdio_pins { + brcm,pins = <34 35 36 37 38 39>; + brcm,function = <7>; /* ALT3 = SD1 */ + brcm,pull = <0 2 2 2 2 2>; + }; + + bt_pins: bt_pins { + brcm,pins = <43>; + brcm,function = <4>; /* alt0:GPCLK2 */ + brcm,pull = <0>; /* none */ + }; + + uart0_pins: uart0_pins { + brcm,pins = <30 31 32 33>; + brcm,function = <7>; /* alt3=UART0 */ + brcm,pull = <2 0 0 2>; /* up none none up */ + }; + + uart1_pins: uart1_pins { + brcm,pins; + brcm,function; + brcm,pull; + }; + + audio_pins: audio_pins { + brcm,pins = <>; + brcm,function = <>; + }; +}; + +&sdhost { + pinctrl-names = "default"; + pinctrl-0 = <&sdhost_pins>; + bus-width = <4>; + status = "okay"; +}; + +&mmc { + pinctrl-names = "default"; + pinctrl-0 = <&sdio_pins>; + non-removable; + bus-width = <4>; + status = "okay"; +}; + +&fb { + status = "okay"; +}; + +&uart0 { + pinctrl-names = "default"; + pinctrl-0 = <&uart0_pins &bt_pins>; + status = "okay"; +}; + +&uart1 { + pinctrl-names = "default"; + pinctrl-0 = <&uart1_pins>; + status = "okay"; +}; + +&spi0 { + pinctrl-names = "default"; + pinctrl-0 = <&spi0_pins &spi0_cs_pins>; + cs-gpios = <&gpio 8 1>, <&gpio 7 1>; + + spidev0: spidev@0{ + compatible = "spidev"; + reg = <0>; /* CE0 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + }; + + spidev1: spidev@1{ + compatible = "spidev"; + reg = <1>; /* CE1 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + }; +}; + +&i2c0 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c0_pins>; + clock-frequency = <100000>; +}; + +&i2c1 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c1_pins>; + clock-frequency = <100000>; +}; + +&i2c2 { + clock-frequency = <100000>; +}; + +&i2s { + #sound-dai-cells = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&i2s_pins>; +}; + +&random { + status = "okay"; +}; + +&leds { + act_led: act { + label = "led0"; + linux,default-trigger = "mmc0"; + gpios = <&gpio 47 0>; + }; +}; + +&hdmi { + hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>; +}; + +&audio { + pinctrl-names = "default"; + pinctrl-0 = <&audio_pins>; +}; + +/ { + chosen { + bootargs = "8250.nr_uarts=1"; + }; +}; + +/ { + __overrides__ { + uart0 = <&uart0>,"status"; + uart1 = <&uart1>,"status"; + i2s = <&i2s>,"status"; + spi = <&spi0>,"status"; + i2c0 = <&i2c0>,"status"; + i2c1 = <&i2c1>,"status"; + i2c2_iknowwhatimdoing = <&i2c2>,"status"; + i2c0_baudrate = <&i2c0>,"clock-frequency:0"; + i2c1_baudrate = <&i2c1>,"clock-frequency:0"; + i2c2_baudrate = <&i2c2>,"clock-frequency:0"; + + act_led_gpio = <&act_led>,"gpios:4"; + act_led_activelow = <&act_led>,"gpios:8"; + act_led_trigger = <&act_led>,"linux,default-trigger"; + + audio = <&audio>,"status"; + watchdog = <&watchdog>,"status"; + random = <&random>,"status"; + sd_overclock = <&sdhost>,"brcm,overclock-50:0"; + sd_force_pio = <&sdhost>,"brcm,force-pio?"; + sd_pio_limit = <&sdhost>,"brcm,pio-limit:0"; + sd_debug = <&sdhost>,"brcm,debug"; + }; +}; diff --git a/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts b/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts new file mode 100644 index 0000000000000000000000000000000000000000..0b66ac9f25a5f7ae51f3d0666cfcb908f85e1d24 --- /dev/null +++ b/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts @@ -0,0 +1,157 @@ +/dts-v1/; + +#include "bcm2708.dtsi" +#include "bcm283x-rpi-smsc9514.dtsi" + +/ { + model = "Raspberry Pi Model B+"; +}; + +&gpio { + sdhost_pins: sdhost_pins { + brcm,pins = <48 49 50 51 52 53>; + brcm,function = <4>; /* alt0 */ + }; + + spi0_pins: spi0_pins { + brcm,pins = <9 10 11>; + brcm,function = <4>; /* alt0 */ + }; + + spi0_cs_pins: spi0_cs_pins { + brcm,pins = <8 7>; + brcm,function = <1>; /* output */ + }; + + i2c0_pins: i2c0 { + brcm,pins = <0 1>; + brcm,function = <4>; + }; + + i2c1_pins: i2c1 { + brcm,pins = <2 3>; + brcm,function = <4>; + }; + + i2s_pins: i2s { + brcm,pins = <18 19 20 21>; + brcm,function = <4>; /* alt0 */ + }; + + audio_pins: audio_pins { + brcm,pins = <40 45>; + brcm,function = <4>; + }; +}; + +&sdhost { + pinctrl-names = "default"; + pinctrl-0 = <&sdhost_pins>; + bus-width = <4>; + status = "okay"; +}; + +&fb { + status = "okay"; +}; + +&uart0 { + status = "okay"; +}; + +&spi0 { + pinctrl-names = "default"; + pinctrl-0 = <&spi0_pins &spi0_cs_pins>; + cs-gpios = <&gpio 8 1>, <&gpio 7 1>; + + spidev0: spidev@0{ + compatible = "spidev"; + reg = <0>; /* CE0 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + }; + + spidev1: spidev@1{ + compatible = "spidev"; + reg = <1>; /* CE1 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + }; +}; + +&i2c0 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c0_pins>; + clock-frequency = <100000>; +}; + +&i2c1 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c1_pins>; + clock-frequency = <100000>; +}; + +&i2c2 { + clock-frequency = <100000>; +}; + +&i2s { + pinctrl-names = "default"; + pinctrl-0 = <&i2s_pins>; +}; + +&leds { + act_led: act { + label = "led0"; + linux,default-trigger = "mmc0"; + gpios = <&gpio 47 0>; + }; + + pwr_led: pwr { + label = "led1"; + linux,default-trigger = "input"; + gpios = <&gpio 35 0>; + }; +}; + +&hdmi { + hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>; +}; + +&audio { + pinctrl-names = "default"; + pinctrl-0 = <&audio_pins>; +}; + +/ { + __overrides__ { + uart0 = <&uart0>,"status"; + uart1 = <&uart1>,"status"; + i2s = <&i2s>,"status"; + spi = <&spi0>,"status"; + i2c0 = <&i2c0>,"status"; + i2c1 = <&i2c1>,"status"; + i2c2_iknowwhatimdoing = <&i2c2>,"status"; + i2c0_baudrate = <&i2c0>,"clock-frequency:0"; + i2c1_baudrate = <&i2c1>,"clock-frequency:0"; + i2c2_baudrate = <&i2c2>,"clock-frequency:0"; + + act_led_gpio = <&act_led>,"gpios:4"; + act_led_activelow = <&act_led>,"gpios:8"; + act_led_trigger = <&act_led>,"linux,default-trigger"; + + pwr_led_gpio = <&pwr_led>,"gpios:4"; + pwr_led_activelow = <&pwr_led>,"gpios:8"; + pwr_led_trigger = <&pwr_led>,"linux,default-trigger"; + + audio = <&audio>,"status"; + watchdog = <&watchdog>,"status"; + random = <&random>,"status"; + sd_overclock = <&sdhost>,"brcm,overclock-50:0"; + sd_force_pio = <&sdhost>,"brcm,force-pio?"; + sd_pio_limit = <&sdhost>,"brcm,pio-limit:0"; + sd_debug = <&sdhost>,"brcm,debug"; + }; +}; diff --git a/arch/arm/boot/dts/bcm2708-rpi-b.dts b/arch/arm/boot/dts/bcm2708-rpi-b.dts new file mode 100644 index 0000000000000000000000000000000000000000..e99e9d999e4142060c41eb47b93c8ac70a30f384 --- /dev/null +++ b/arch/arm/boot/dts/bcm2708-rpi-b.dts @@ -0,0 +1,147 @@ +/dts-v1/; + +#include "bcm2708.dtsi" +#include "bcm283x-rpi-smsc9512.dtsi" + +/ { + model = "Raspberry Pi Model B"; +}; + +&gpio { + sdhost_pins: sdhost_pins { + brcm,pins = <48 49 50 51 52 53>; + brcm,function = <4>; /* alt0 */ + }; + + spi0_pins: spi0_pins { + brcm,pins = <9 10 11>; + brcm,function = <4>; /* alt0 */ + }; + + spi0_cs_pins: spi0_cs_pins { + brcm,pins = <8 7>; + brcm,function = <1>; /* output */ + }; + + i2c0_pins: i2c0 { + brcm,pins = <0 1>; + brcm,function = <4>; + }; + + i2c1_pins: i2c1 { + brcm,pins = <2 3>; + brcm,function = <4>; + }; + + i2s_pins: i2s { + brcm,pins = <28 29 30 31>; + brcm,function = <6>; /* alt2 */ + }; + + audio_pins: audio_pins { + brcm,pins = <40 45>; + brcm,function = <4>; + }; +}; + +&sdhost { + pinctrl-names = "default"; + pinctrl-0 = <&sdhost_pins>; + bus-width = <4>; + status = "okay"; +}; + +&fb { + status = "okay"; +}; + +&uart0 { + status = "okay"; +}; + +&spi0 { + pinctrl-names = "default"; + pinctrl-0 = <&spi0_pins &spi0_cs_pins>; + cs-gpios = <&gpio 8 1>, <&gpio 7 1>; + + spidev0: spidev@0{ + compatible = "spidev"; + reg = <0>; /* CE0 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + }; + + spidev1: spidev@1{ + compatible = "spidev"; + reg = <1>; /* CE1 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + }; +}; + +&i2c0 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c0_pins>; + clock-frequency = <100000>; +}; + +&i2c1 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c1_pins>; + clock-frequency = <100000>; +}; + +&i2c2 { + clock-frequency = <100000>; +}; + +&i2s { + pinctrl-names = "default"; + pinctrl-0 = <&i2s_pins>; +}; + +&leds { + act_led: act { + label = "led0"; + linux,default-trigger = "mmc0"; + gpios = <&gpio 16 1>; + }; +}; + +&hdmi { + hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>; +}; + +&audio { + pinctrl-names = "default"; + pinctrl-0 = <&audio_pins>; +}; + +/ { + __overrides__ { + uart0 = <&uart0>,"status"; + uart1 = <&uart1>,"status"; + i2s = <&i2s>,"status"; + spi = <&spi0>,"status"; + i2c0 = <&i2c0>,"status"; + i2c1 = <&i2c1>,"status"; + i2c2_iknowwhatimdoing = <&i2c2>,"status"; + i2c0_baudrate = <&i2c0>,"clock-frequency:0"; + i2c1_baudrate = <&i2c1>,"clock-frequency:0"; + i2c2_baudrate = <&i2c2>,"clock-frequency:0"; + + act_led_gpio = <&act_led>,"gpios:4"; + act_led_activelow = <&act_led>,"gpios:8"; + act_led_trigger = <&act_led>,"linux,default-trigger"; + + audio = <&audio>,"status"; + watchdog = <&watchdog>,"status"; + random = <&random>,"status"; + sd_overclock = <&sdhost>,"brcm,overclock-50:0"; + sd_force_pio = <&sdhost>,"brcm,force-pio?"; + sd_pio_limit = <&sdhost>,"brcm,pio-limit:0"; + sd_debug = <&sdhost>,"brcm,debug"; + }; +}; diff --git a/arch/arm/boot/dts/bcm2708-rpi-cm.dts b/arch/arm/boot/dts/bcm2708-rpi-cm.dts new file mode 100644 index 0000000000000000000000000000000000000000..10be69972bd1440f574e35d515f3d6a0505fd869 --- /dev/null +++ b/arch/arm/boot/dts/bcm2708-rpi-cm.dts @@ -0,0 +1,110 @@ +/dts-v1/; + +#include "bcm2708-rpi-cm.dtsi" + +/ { + model = "Raspberry Pi Compute Module"; +}; + +&uart0 { + status = "okay"; +}; + +&gpio { + spi0_pins: spi0_pins { + brcm,pins = <9 10 11>; + brcm,function = <4>; /* alt0 */ + }; + + spi0_cs_pins: spi0_cs_pins { + brcm,pins = <8 7>; + brcm,function = <1>; /* output */ + }; + + i2c0_pins: i2c0 { + brcm,pins = <0 1>; + brcm,function = <4>; + }; + + i2c1_pins: i2c1 { + brcm,pins = <2 3>; + brcm,function = <4>; + }; + + i2s_pins: i2s { + brcm,pins = <18 19 20 21>; + brcm,function = <4>; /* alt0 */ + }; + + audio_pins: audio_pins { + brcm,pins; + brcm,function; + }; +}; + +&spi0 { + pinctrl-names = "default"; + pinctrl-0 = <&spi0_pins &spi0_cs_pins>; + cs-gpios = <&gpio 8 1>, <&gpio 7 1>; + + spidev0: spidev@0{ + compatible = "spidev"; + reg = <0>; /* CE0 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + }; + + spidev1: spidev@1{ + compatible = "spidev"; + reg = <1>; /* CE1 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + }; +}; + +&i2c0 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c0_pins>; + clock-frequency = <100000>; +}; + +&i2c1 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c1_pins>; + clock-frequency = <100000>; +}; + +&i2c2 { + clock-frequency = <100000>; +}; + +&i2s { + pinctrl-names = "default"; + pinctrl-0 = <&i2s_pins>; +}; + +&audio { + pinctrl-names = "default"; + pinctrl-0 = <&audio_pins>; +}; + +&hdmi { + hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>; +}; + +/ { + __overrides__ { + uart0 = <&uart0>,"status"; + uart1 = <&uart1>,"status"; + i2s = <&i2s>,"status"; + spi = <&spi0>,"status"; + i2c0 = <&i2c0>,"status"; + i2c1 = <&i2c1>,"status"; + i2c2_iknowwhatimdoing = <&i2c2>,"status"; + i2c0_baudrate = <&i2c0>,"clock-frequency:0"; + i2c1_baudrate = <&i2c1>,"clock-frequency:0"; + i2c2_baudrate = <&i2c2>,"clock-frequency:0"; + }; +}; diff --git a/arch/arm/boot/dts/bcm2708-rpi-cm.dtsi b/arch/arm/boot/dts/bcm2708-rpi-cm.dtsi new file mode 100644 index 0000000000000000000000000000000000000000..d33d462b4090e4a4f967a37212918b9cf500bf76 --- /dev/null +++ b/arch/arm/boot/dts/bcm2708-rpi-cm.dtsi @@ -0,0 +1,50 @@ +#include "bcm2708.dtsi" + +&gpio { + sdhost_pins: sdhost_pins { + brcm,pins = <48 49 50 51 52 53>; + brcm,function = <4>; /* alt0 */ + }; +}; + +&gpio { + mmc_pins: mmc_pins { + brcm,pins = <48 49 50 51 52 53>; + brcm,function = <7>; /* alt3 */ + }; +}; + +&leds { + act_led: act { + label = "led0"; + linux,default-trigger = "mmc0"; + gpios = <&gpio 47 0>; + }; +}; + + +&sdhost { + pinctrl-names = "default"; + pinctrl-0 = <&sdhost_pins>; + non-removable; + bus-width = <4>; + status = "okay"; + brcm,overclock-50 = <0>; +}; + +&fb { + status = "okay"; +}; + +/ { + __overrides__ { + act_led_gpio = <&act_led>,"gpios:4"; + act_led_activelow = <&act_led>,"gpios:8"; + act_led_trigger = <&act_led>,"linux,default-trigger"; + + audio = <&audio>,"status"; + watchdog = <&watchdog>,"status"; + random = <&random>,"status"; + sd_overclock = <&mmc>,"brcm,overclock-50:0"; + }; +}; diff --git a/arch/arm/boot/dts/bcm2708-rpi.dtsi b/arch/arm/boot/dts/bcm2708-rpi.dtsi new file mode 100644 index 0000000000000000000000000000000000000000..ef14e9ac6cd2092efb1681682dd2d3c52b8abfd5 --- /dev/null +++ b/arch/arm/boot/dts/bcm2708-rpi.dtsi @@ -0,0 +1,113 @@ +/* Downstream version of bcm2835-rpi.dtsi */ + +#include + +/ { + memory { + device_type = "memory"; + reg = <0x0 0x0>; + }; + + aliases { + audio = &audio; + aux = &aux; + sound = &sound; + soc = &soc; + dma = &dma; + intc = &intc; + watchdog = &watchdog; + random = &random; + mailbox = &mailbox; + gpio = &gpio; + uart0 = &uart0; + sdhost = &sdhost; + i2s = &i2s; + spi0 = &spi0; + i2c0 = &i2c0; + uart1 = &uart1; + spi1 = &spi1; + spi2 = &spi2; + mmc = &mmc; + i2c1 = &i2c1; + i2c2 = &i2c2; + usb = &usb; + leds = &leds; + fb = &fb; + vchiq = &vchiq; + thermal = &thermal; + }; + + leds: leds { + compatible = "gpio-leds"; + }; + + soc { + gpiomem { + compatible = "brcm,bcm2835-gpiomem"; + reg = <0x7e200000 0x1000>; + }; + + firmware: firmware { + compatible = "raspberrypi,bcm2835-firmware"; + mboxes = <&mailbox>; + }; + + power: power { + compatible = "raspberrypi,bcm2835-power"; + firmware = <&firmware>; + #power-domain-cells = <1>; + }; + + fb: fb { + compatible = "brcm,bcm2708-fb"; + firmware = <&firmware>; + status = "disabled"; + }; + + vchiq: vchiq { + compatible = "brcm,bcm2835-vchiq"; + reg = <0x7e00b840 0xf>; + interrupts = <0 2>; + cache-line-size = <32>; + firmware = <&firmware>; + }; + + thermal: thermal@7e212000 { + firmware = <&firmware>; + status = "okay"; + }; + + /* Onboard audio */ + audio: audio { + compatible = "brcm,bcm2835-audio"; + brcm,pwm-channels = <8>; + status = "disabled"; + }; + + /* External sound card */ + sound: sound { + status = "disabled"; + }; + + }; + + __overrides__ { + cache_line_size = <&vchiq>, "cache-line-size:0"; + }; +}; + +&dma { + brcm,dma-channel-mask = <0x7f34>; +}; + +&hdmi { + power-domains = <&power RPI_POWER_DOMAIN_HDMI>; +}; + +&usb { + power-domains = <&power RPI_POWER_DOMAIN_USB>; +}; + +&clocks { + firmware = <&firmware>; +}; diff --git a/arch/arm/boot/dts/bcm2708.dtsi b/arch/arm/boot/dts/bcm2708.dtsi new file mode 100644 index 0000000000000000000000000000000000000000..0f72bd90c591a2e8752d7437fa7e8c6308bd8c3f --- /dev/null +++ b/arch/arm/boot/dts/bcm2708.dtsi @@ -0,0 +1,16 @@ +#include "bcm2835.dtsi" +#include "bcm270x.dtsi" +#include "bcm2708-rpi.dtsi" + +/ { + soc { + timer@7e003000 { + compatible = "brcm,bcm2835-system-timer"; + reg = <0x7e003000 0x1000>; + interrupts = <1 0>, <1 1>, <1 2>, <1 3>; + clock-frequency = <1000000>; + }; + }; + + /delete-node/ cpus; +}; diff --git a/arch/arm/boot/dts/bcm2709-rpi-2-b.dts b/arch/arm/boot/dts/bcm2709-rpi-2-b.dts new file mode 100644 index 0000000000000000000000000000000000000000..20674f250af922e9f9a43e3e8b13aee42e3930be --- /dev/null +++ b/arch/arm/boot/dts/bcm2709-rpi-2-b.dts @@ -0,0 +1,157 @@ +/dts-v1/; + +#include "bcm2709.dtsi" +#include "bcm283x-rpi-smsc9514.dtsi" + +/ { + model = "Raspberry Pi 2 Model B"; +}; + +&gpio { + sdhost_pins: sdhost_pins { + brcm,pins = <48 49 50 51 52 53>; + brcm,function = <4>; /* alt0 */ + }; + + spi0_pins: spi0_pins { + brcm,pins = <9 10 11>; + brcm,function = <4>; /* alt0 */ + }; + + spi0_cs_pins: spi0_cs_pins { + brcm,pins = <8 7>; + brcm,function = <1>; /* output */ + }; + + i2c0_pins: i2c0 { + brcm,pins = <0 1>; + brcm,function = <4>; + }; + + i2c1_pins: i2c1 { + brcm,pins = <2 3>; + brcm,function = <4>; + }; + + i2s_pins: i2s { + brcm,pins = <18 19 20 21>; + brcm,function = <4>; /* alt0 */ + }; + + audio_pins: audio_pins { + brcm,pins = <40 45>; + brcm,function = <4>; + }; +}; + +&sdhost { + pinctrl-names = "default"; + pinctrl-0 = <&sdhost_pins>; + bus-width = <4>; + status = "okay"; +}; + +&fb { + status = "okay"; +}; + +&uart0 { + status = "okay"; +}; + +&spi0 { + pinctrl-names = "default"; + pinctrl-0 = <&spi0_pins &spi0_cs_pins>; + cs-gpios = <&gpio 8 1>, <&gpio 7 1>; + + spidev0: spidev@0{ + compatible = "spidev"; + reg = <0>; /* CE0 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + }; + + spidev1: spidev@1{ + compatible = "spidev"; + reg = <1>; /* CE1 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + }; +}; + +&i2c0 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c0_pins>; + clock-frequency = <100000>; +}; + +&i2c1 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c1_pins>; + clock-frequency = <100000>; +}; + +&i2c2 { + clock-frequency = <100000>; +}; + +&i2s { + pinctrl-names = "default"; + pinctrl-0 = <&i2s_pins>; +}; + +&leds { + act_led: act { + label = "led0"; + linux,default-trigger = "mmc0"; + gpios = <&gpio 47 0>; + }; + + pwr_led: pwr { + label = "led1"; + linux,default-trigger = "input"; + gpios = <&gpio 35 0>; + }; +}; + +&hdmi { + hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>; +}; + +&audio { + pinctrl-names = "default"; + pinctrl-0 = <&audio_pins>; +}; + +/ { + __overrides__ { + uart0 = <&uart0>,"status"; + uart1 = <&uart1>,"status"; + i2s = <&i2s>,"status"; + spi = <&spi0>,"status"; + i2c0 = <&i2c0>,"status"; + i2c1 = <&i2c1>,"status"; + i2c2_iknowwhatimdoing = <&i2c2>,"status"; + i2c0_baudrate = <&i2c0>,"clock-frequency:0"; + i2c1_baudrate = <&i2c1>,"clock-frequency:0"; + i2c2_baudrate = <&i2c2>,"clock-frequency:0"; + + act_led_gpio = <&act_led>,"gpios:4"; + act_led_activelow = <&act_led>,"gpios:8"; + act_led_trigger = <&act_led>,"linux,default-trigger"; + + pwr_led_gpio = <&pwr_led>,"gpios:4"; + pwr_led_activelow = <&pwr_led>,"gpios:8"; + pwr_led_trigger = <&pwr_led>,"linux,default-trigger"; + + audio = <&audio>,"status"; + watchdog = <&watchdog>,"status"; + random = <&random>,"status"; + sd_overclock = <&sdhost>,"brcm,overclock-50:0"; + sd_force_pio = <&sdhost>,"brcm,force-pio?"; + sd_pio_limit = <&sdhost>,"brcm,pio-limit:0"; + sd_debug = <&sdhost>,"brcm,debug"; + }; +}; diff --git a/arch/arm/boot/dts/bcm2709.dtsi b/arch/arm/boot/dts/bcm2709.dtsi new file mode 100644 index 0000000000000000000000000000000000000000..343437db94820bb75a9b81e8bc6ecf6f31d9f04c --- /dev/null +++ b/arch/arm/boot/dts/bcm2709.dtsi @@ -0,0 +1,22 @@ +#include "bcm2836.dtsi" +#include "bcm270x.dtsi" +#include "bcm2708-rpi.dtsi" + +/ { + soc { + ranges = <0x7e000000 0x3f000000 0x01000000>, + <0x40000000 0x40000000 0x00040000>; + + syscon@40000000 { + compatible = "brcm,bcm2836-arm-local", "syscon"; + reg = <0x40000000 0x100>; + }; + }; + + __overrides__ { + arm_freq = <&v7_cpu0>, "clock-frequency:0", + <&v7_cpu1>, "clock-frequency:0", + <&v7_cpu2>, "clock-frequency:0", + <&v7_cpu3>, "clock-frequency:0"; + }; +}; diff --git a/arch/arm/boot/dts/bcm270x.dtsi b/arch/arm/boot/dts/bcm270x.dtsi new file mode 100644 index 0000000000000000000000000000000000000000..36d853715f2379e1952ce3d3be58dd670e305159 --- /dev/null +++ b/arch/arm/boot/dts/bcm270x.dtsi @@ -0,0 +1,157 @@ +/* Downstream bcm283x.dtsi diff */ +#include "dt-bindings/power/raspberrypi-power.h" + +/ { + chosen { + bootargs = ""; + }; + + soc: soc { + + /delete-node/ timer@7e003000; + + watchdog: watchdog@7e100000 { + /* Add alias */ + }; + + cprman: cprman@7e101000 { + /* Add alias */ + }; + + random: rng@7e104000 { + /* Add alias */ + }; + + gpio@7e200000 { /* gpio */ + interrupts = <2 17>, <2 18>; + }; + + sdhost: sdhost@7e202000 { + compatible = "brcm,bcm2835-sdhost"; + reg = <0x7e202000 0x100>; + interrupts = <2 24>; + clocks = <&clocks BCM2835_CLOCK_VPU>; + dmas = <&dma 13>; + dma-names = "rx-tx"; + brcm,overclock-50 = <0>; + brcm,pio-limit = <1>; + status = "disabled"; + }; + + i2s@7e203000 { /* i2s */ + #sound-dai-cells = <0>; + reg = <0x7e203000 0x24>; + clocks = <&clocks BCM2835_CLOCK_PCM>; + }; + + spi0: spi@7e204000 { + /* Add alias */ + dmas = <&dma 6>, <&dma 7>; + dma-names = "tx", "rx"; + }; + + pixelvalve0: pixelvalve@7e206000 { + /* Add alias */ + status = "disabled"; + }; + + pixelvalve1: pixelvalve@7e207000 { + /* Add alias */ + status = "disabled"; + }; + + dpi: dpi@7e208000 { + compatible = "brcm,bcm2835-dpi"; + reg = <0x7e208000 0x8c>; + clocks = <&clocks BCM2835_CLOCK_VPU>, + <&clocks BCM2835_CLOCK_DPI>; + clock-names = "core", "pixel"; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + + /delete-node/ sdhci@7e300000; + + mmc: mmc@7e300000 { + compatible = "brcm,bcm2835-mmc"; + reg = <0x7e300000 0x100>; + interrupts = <2 30>; + clocks = <&clocks BCM2835_CLOCK_EMMC>; + dmas = <&dma 11>; + dma-names = "rx-tx"; + brcm,overclock-50 = <0>; + status = "disabled"; + }; + + hvs: hvs@7e400000 { + /* Add alias */ + status = "disabled"; + }; + + firmwarekms: firmwarekms@7e600000 { + compatible = "raspberrypi,rpi-firmware-kms"; + /* SMI interrupt reg */ + reg = <0x7e600000 0x100>; + interrupts = <2 16>; + brcm,firmware = <&firmware>; + status = "disabled"; + }; + + smi: smi@7e600000 { + compatible = "brcm,bcm2835-smi"; + reg = <0x7e600000 0x100>; + interrupts = <2 16>; + clocks = <&clocks BCM2835_CLOCK_SMI>; + assigned-clocks = <&cprman BCM2835_CLOCK_SMI>; + assigned-clock-rates = <125000000>; + dmas = <&dma 4>; + dma-names = "rx-tx"; + status = "disabled"; + }; + + pixelvalve2: pixelvalve@7e807000 { + /* Add alias */ + status = "disabled"; + }; + + hdmi@7e902000 { /* hdmi */ + status = "disabled"; + }; + + usb@7e980000 { /* usb */ + compatible = "brcm,bcm2708-usb"; + reg = <0x7e980000 0x10000>, + <0x7e006000 0x1000>; + interrupts = <2 0>, + <1 9>; + }; + + v3d@7ec00000 { /* vd3 */ + compatible = "brcm,vc4-v3d"; + power-domains = <&power RPI_POWER_DOMAIN_V3D>; + status = "disabled"; + }; + + gpu: gpu { + /* Add alias */ + status = "disabled"; + }; + }; + + vdd_5v0_reg: fixedregulator_5v0 { + compatible = "regulator-fixed"; + regulator-name = "5v0"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + regulator-always-on; + }; + + vdd_3v3_reg: fixedregulator_3v3 { + compatible = "regulator-fixed"; + regulator-name = "3v3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; +}; diff --git a/arch/arm/boot/dts/bcm2710-rpi-3-b.dts b/arch/arm/boot/dts/bcm2710-rpi-3-b.dts new file mode 100644 index 0000000000000000000000000000000000000000..616cfd5c7094596b497101e8feca25e25e77c3e8 --- /dev/null +++ b/arch/arm/boot/dts/bcm2710-rpi-3-b.dts @@ -0,0 +1,226 @@ +/dts-v1/; + +#ifdef RPI364 +/memreserve/ 0x00000000 0x00001000; +#endif + +#include "bcm2710.dtsi" +#include "bcm283x-rpi-smsc9514.dtsi" + +/ { + model = "Raspberry Pi 3 Model B"; +}; + +&gpio { + sdhost_pins: sdhost_pins { + brcm,pins = <48 49 50 51 52 53>; + brcm,function = <4>; /* alt0 */ + }; + + spi0_pins: spi0_pins { + brcm,pins = <9 10 11>; + brcm,function = <4>; /* alt0 */ + }; + + spi0_cs_pins: spi0_cs_pins { + brcm,pins = <8 7>; + brcm,function = <1>; /* output */ + }; + + i2c0_pins: i2c0 { + brcm,pins = <0 1>; + brcm,function = <4>; + }; + + i2c1_pins: i2c1 { + brcm,pins = <2 3>; + brcm,function = <4>; + }; + + i2s_pins: i2s { + brcm,pins = <18 19 20 21>; + brcm,function = <4>; /* alt0 */ + }; + + sdio_pins: sdio_pins { + brcm,pins = <34 35 36 37 38 39>; + brcm,function = <7>; // alt3 = SD1 + brcm,pull = <0 2 2 2 2 2>; + }; + + bt_pins: bt_pins { + brcm,pins = <43>; + brcm,function = <4>; /* alt0:GPCLK2 */ + brcm,pull = <0>; + }; + + uart0_pins: uart0_pins { + brcm,pins = <32 33>; + brcm,function = <7>; /* alt3=UART0 */ + brcm,pull = <0 2>; + }; + + uart1_pins: uart1_pins { + brcm,pins; + brcm,function; + brcm,pull; + }; + + audio_pins: audio_pins { + brcm,pins = <40 41>; + brcm,function = <4>; + }; +}; + +&sdhost { + pinctrl-names = "default"; + pinctrl-0 = <&sdhost_pins>; + bus-width = <4>; + status = "okay"; +}; + +&mmc { + pinctrl-names = "default"; + pinctrl-0 = <&sdio_pins>; + non-removable; + bus-width = <4>; + status = "okay"; + brcm,overclock-50 = <0>; +}; + +&soc { + virtgpio: virtgpio { + compatible = "brcm,bcm2835-virtgpio"; + gpio-controller; + #gpio-cells = <2>; + firmware = <&firmware>; + status = "okay"; + }; + + expgpio: expgpio { + compatible = "brcm,bcm2835-expgpio"; + gpio-controller; + #gpio-cells = <2>; + firmware = <&firmware>; + status = "okay"; + }; +}; + +&fb { + status = "okay"; +}; + +&uart0 { + pinctrl-names = "default"; + pinctrl-0 = <&uart0_pins &bt_pins>; + status = "okay"; +}; + +&uart1 { + pinctrl-names = "default"; + pinctrl-0 = <&uart1_pins>; + status = "okay"; +}; + +&spi0 { + pinctrl-names = "default"; + pinctrl-0 = <&spi0_pins &spi0_cs_pins>; + cs-gpios = <&gpio 8 1>, <&gpio 7 1>; + + spidev0: spidev@0{ + compatible = "spidev"; + reg = <0>; /* CE0 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + }; + + spidev1: spidev@1{ + compatible = "spidev"; + reg = <1>; /* CE1 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + }; +}; + +&i2c0 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c0_pins>; + clock-frequency = <100000>; +}; + +&i2c1 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c1_pins>; + clock-frequency = <100000>; +}; + +&i2c2 { + clock-frequency = <100000>; +}; + +&i2s { + pinctrl-names = "default"; + pinctrl-0 = <&i2s_pins>; +}; + +&leds { + act_led: act { + label = "led0"; + linux,default-trigger = "mmc0"; + gpios = <&virtgpio 0 0>; + }; + + pwr_led: pwr { + label = "led1"; + linux,default-trigger = "input"; + gpios = <&expgpio 7 GPIO_ACTIVE_LOW>; + }; +}; + +&hdmi { + hpd-gpios = <&expgpio 4 GPIO_ACTIVE_LOW>; +}; + +&audio { + pinctrl-names = "default"; + pinctrl-0 = <&audio_pins>; +}; + +/ { + chosen { + bootargs = "8250.nr_uarts=1"; + }; +}; + +/ { + __overrides__ { + uart0 = <&uart0>,"status"; + uart1 = <&uart1>,"status"; + i2s = <&i2s>,"status"; + spi = <&spi0>,"status"; + i2c0 = <&i2c0>,"status"; + i2c1 = <&i2c1>,"status"; + i2c2_iknowwhatimdoing = <&i2c2>,"status"; + i2c0_baudrate = <&i2c0>,"clock-frequency:0"; + i2c1_baudrate = <&i2c1>,"clock-frequency:0"; + i2c2_baudrate = <&i2c2>,"clock-frequency:0"; + + act_led_gpio = <&act_led>,"gpios:4"; + act_led_activelow = <&act_led>,"gpios:8"; + act_led_trigger = <&act_led>,"linux,default-trigger"; + + pwr_led_gpio = <&pwr_led>,"gpios:4"; + pwr_led_activelow = <&pwr_led>,"gpios:8"; + pwr_led_trigger = <&pwr_led>,"linux,default-trigger"; + + audio = <&audio>,"status"; + watchdog = <&watchdog>,"status"; + random = <&random>,"status"; + sd_overclock = <&sdhost>,"brcm,overclock-50:0"; + sd_force_pio = <&sdhost>,"brcm,force-pio?"; + sd_pio_limit = <&sdhost>,"brcm,pio-limit:0"; + sd_debug = <&sdhost>,"brcm,debug"; + }; +}; diff --git a/arch/arm/boot/dts/bcm2710-rpi-cm3.dts b/arch/arm/boot/dts/bcm2710-rpi-cm3.dts new file mode 100644 index 0000000000000000000000000000000000000000..fe402e84cdda884583336422289ac8b3cc12fb28 --- /dev/null +++ b/arch/arm/boot/dts/bcm2710-rpi-cm3.dts @@ -0,0 +1,167 @@ +/dts-v1/; + +#include "bcm2710.dtsi" + +/ { + model = "Raspberry Pi Compute Module 3"; +}; + +&uart0 { + status = "okay"; +}; + +&gpio { + sdhost_pins: sdhost_pins { + brcm,pins = <48 49 50 51 52 53>; + brcm,function = <4>; /* alt0 */ + brcm,pull = <0 2 2 2 2 2>; + }; + + spi0_pins: spi0_pins { + brcm,pins = <9 10 11>; + brcm,function = <4>; /* alt0 */ + }; + + spi0_cs_pins: spi0_cs_pins { + brcm,pins = <8 7>; + brcm,function = <1>; /* output */ + }; + + i2c0_pins: i2c0 { + brcm,pins = <0 1>; + brcm,function = <4>; + }; + + i2c1_pins: i2c1 { + brcm,pins = <2 3>; + brcm,function = <4>; + }; + + i2s_pins: i2s { + brcm,pins = <18 19 20 21>; + brcm,function = <4>; /* alt0 */ + }; + + audio_pins: audio_pins { + brcm,pins; + brcm,function; + }; +}; + +&sdhost { + pinctrl-names = "default"; + pinctrl-0 = <&sdhost_pins>; + non-removable; + bus-width = <4>; + status = "okay"; + brcm,overclock-50 = <0>; +}; + +&soc { + virtgpio: virtgpio { + compatible = "brcm,bcm2835-virtgpio"; + gpio-controller; + #gpio-cells = <2>; + firmware = <&firmware>; + status = "okay"; + }; + + expgpio: expgpio { + compatible = "brcm,bcm2835-expgpio"; + gpio-controller; + #gpio-cells = <2>; + firmware = <&firmware>; + status = "okay"; + }; +}; + +&fb { + status = "okay"; +}; + +&spi0 { + pinctrl-names = "default"; + pinctrl-0 = <&spi0_pins &spi0_cs_pins>; + cs-gpios = <&gpio 8 1>, <&gpio 7 1>; + + spidev0: spidev@0{ + compatible = "spidev"; + reg = <0>; /* CE0 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + }; + + spidev1: spidev@1{ + compatible = "spidev"; + reg = <1>; /* CE1 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + }; +}; + +&i2c0 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c0_pins>; + clock-frequency = <100000>; +}; + +&i2c1 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c1_pins>; + clock-frequency = <100000>; +}; + +&i2c2 { + clock-frequency = <100000>; +}; + +&i2s { + pinctrl-names = "default"; + pinctrl-0 = <&i2s_pins>; +}; + +&leds { + act_led: act { + label = "led0"; + linux,default-trigger = "mmc0"; + gpios = <&virtgpio 0 0>; + }; +}; + +&hdmi { + hpd-gpios = <&expgpio 0 GPIO_ACTIVE_LOW>; +}; + +&audio { + pinctrl-names = "default"; + pinctrl-0 = <&audio_pins>; +}; + +/ { + __overrides__ { + uart0 = <&uart0>,"status"; + uart1 = <&uart1>,"status"; + i2s = <&i2s>,"status"; + spi = <&spi0>,"status"; + i2c0 = <&i2c0>,"status"; + i2c1 = <&i2c1>,"status"; + i2c2_iknowwhatimdoing = <&i2c2>,"status"; + i2c0_baudrate = <&i2c0>,"clock-frequency:0"; + i2c1_baudrate = <&i2c1>,"clock-frequency:0"; + i2c2_baudrate = <&i2c2>,"clock-frequency:0"; + + act_led_gpio = <&act_led>,"gpios:4"; + act_led_activelow = <&act_led>,"gpios:8"; + act_led_trigger = <&act_led>,"linux,default-trigger"; + + audio = <&audio>,"status"; + watchdog = <&watchdog>,"status"; + random = <&random>,"status"; + sd_overclock = <&sdhost>,"brcm,overclock-50:0"; + sd_force_pio = <&sdhost>,"brcm,force-pio?"; + sd_pio_limit = <&sdhost>,"brcm,pio-limit:0"; + sd_debug = <&sdhost>,"brcm,debug"; + }; +}; diff --git a/arch/arm/boot/dts/bcm2710.dtsi b/arch/arm/boot/dts/bcm2710.dtsi new file mode 100644 index 0000000000000000000000000000000000000000..3e134a1208610b90e2d0fc22f03c6e9f372bfcd7 --- /dev/null +++ b/arch/arm/boot/dts/bcm2710.dtsi @@ -0,0 +1,148 @@ +#include "bcm283x.dtsi" +#include "bcm270x.dtsi" +#include "bcm2708-rpi.dtsi" + +/ { + compatible = "brcm,bcm2837", "brcm,bcm2836"; + model = "BCM2837"; + + soc { + ranges = <0x7e000000 0x3f000000 0x01000000>, + <0x40000000 0x40000000 0x00040000>; + dma-ranges = <0xc0000000 0x00000000 0x3f000000>; + + local_intc: local_intc { + compatible = "brcm,bcm2836-l1-intc"; + reg = <0x40000000 0x100>; + interrupt-controller; + #interrupt-cells = <1>; + interrupt-parent = <&local_intc>; + }; + + arm-pmu { +#ifdef RPI364 + compatible = "arm,armv8-pmuv3", "arm,cortex-a7-pmu"; +#else + compatible = "arm,cortex-a7-pmu"; +#endif + interrupt-parent = <&local_intc>; + interrupts = <9>; + }; + + timer { +#ifdef RPI364 + compatible = "arm,armv8-timer", "arm,armv7-timer"; +#else + compatible = "arm,armv7-timer"; +#endif + interrupt-parent = <&local_intc>; + interrupts = <0>, // PHYS_SECURE_PPI + <1>, // PHYS_NONSECURE_PPI + <3>, // VIRT_PPI + <2>; // HYP_PPI + always-on; + }; + + syscon@40000000 { + compatible = "brcm,bcm2836-arm-local", "syscon"; + reg = <0x40000000 0x100>; + }; + }; + +#ifdef RPI364 + cpus: cpus { + #address-cells = <1>; + #size-cells = <0>; + + v8_cpu0: cpu@0 { + device_type = "cpu"; + compatible = "arm,cortex-a53", "arm,armv8"; + reg = <0x0>; + clock-frequency = <1200000000>; + }; + + v8_cpu1: cpu@1 { + device_type = "cpu"; + compatible = "arm,cortex-a53", "arm,armv8"; + reg = <0x1>; + clock-frequency = <1200000000>; + enable-method = "spin-table"; + cpu-release-addr = <0x0 0x000000e0>; + }; + + v8_cpu2: cpu@2 { + device_type = "cpu"; + compatible = "arm,cortex-a53", "arm,armv8"; + reg = <0x2>; + clock-frequency = <1200000000>; + enable-method = "spin-table"; + cpu-release-addr = <0x0 0x000000e8>; + }; + + v8_cpu3: cpu@3 { + device_type = "cpu"; + compatible = "arm,cortex-a53", "arm,armv8"; + reg = <0x3>; + clock-frequency = <1200000000>; + enable-method = "spin-table"; + cpu-release-addr = <0x0 0x000000f0>; + }; + }; + + __overrides__ { + arm_freq = <&v8_cpu0>, "clock-frequency:0", + <&v8_cpu1>, "clock-frequency:0", + <&v8_cpu2>, "clock-frequency:0", + <&v8_cpu3>, "clock-frequency:0"; + }; + +#else + cpus: cpus { + #address-cells = <1>; + #size-cells = <0>; + + v7_cpu0: cpu@0 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; + reg = <0x000>; + clock-frequency = <800000000>; + }; + + v7_cpu1: cpu@1 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; + reg = <0x001>; + clock-frequency = <800000000>; + }; + + v7_cpu2: cpu@2 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; + reg = <0x002>; + clock-frequency = <800000000>; + }; + + v7_cpu3: cpu@3 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; + reg = <0x003>; + clock-frequency = <800000000>; + }; + }; + + __overrides__ { + arm_freq = <&v7_cpu0>, "clock-frequency:0", + <&v7_cpu1>, "clock-frequency:0", + <&v7_cpu2>, "clock-frequency:0", + <&v7_cpu3>, "clock-frequency:0"; + }; +#endif +}; + +&intc { + compatible = "brcm,bcm2836-armctrl-ic"; + reg = <0x7e00b200 0x200>; + interrupt-parent = <&local_intc>; + interrupts = <8>; +}; + diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi index a3106aa446c6906108c90952cd39520ff195ef79..72cb9dc60ca9ad9aa2813972a299c50dcea7cd89 100644 --- a/arch/arm/boot/dts/bcm283x.dtsi +++ b/arch/arm/boot/dts/bcm283x.dtsi @@ -366,6 +366,7 @@ #address-cells = <1>; #size-cells = <0>; status = "disabled"; + cs-gpios = <&gpio 8 1>, <&gpio 7 1>; }; i2c0: i2c@7e205000 { diff --git a/arch/arm/boot/dts/overlays/Makefile b/arch/arm/boot/dts/overlays/Makefile new file mode 100644 index 0000000000000000000000000000000000000000..0f7340799fb465ba1fb5aaa1e970cbf6295d75c4 --- /dev/null +++ b/arch/arm/boot/dts/overlays/Makefile @@ -0,0 +1,114 @@ +# Overlays for the Raspberry Pi platform + +dtbo-$(CONFIG_ARCH_BCM2835) += \ + adau1977-adc.dtbo \ + adau7002-simple.dtbo \ + ads1015.dtbo \ + ads1115.dtbo \ + ads7846.dtbo \ + akkordion-iqdacplus.dtbo \ + allo-piano-dac-pcm512x-audio.dtbo \ + at86rf233.dtbo \ + audioinjector-addons.dtbo \ + audioinjector-wm8731-audio.dtbo \ + audremap.dtbo \ + bmp085_i2c-sensor.dtbo \ + dht11.dtbo \ + dionaudio-loco.dtbo \ + dionaudio-loco-v2.dtbo \ + dpi18.dtbo \ + dpi24.dtbo \ + dwc-otg.dtbo \ + dwc2.dtbo \ + enc28j60.dtbo \ + enc28j60-spi2.dtbo \ + fe-pi-audio.dtbo \ + gpio-ir.dtbo \ + gpio-poweroff.dtbo \ + hifiberry-amp.dtbo \ + hifiberry-dac.dtbo \ + hifiberry-dacplus.dtbo \ + hifiberry-digi.dtbo \ + hifiberry-digi-pro.dtbo \ + hy28a.dtbo \ + hy28b.dtbo \ + i2c-bcm2708.dtbo \ + i2c-gpio.dtbo \ + i2c-mux.dtbo \ + i2c-pwm-pca9685a.dtbo \ + i2c-rtc.dtbo \ + i2c-sensor.dtbo \ + i2c0-bcm2708.dtbo \ + i2c1-bcm2708.dtbo \ + i2s-gpio28-31.dtbo \ + iqaudio-dac.dtbo \ + iqaudio-dacplus.dtbo \ + iqaudio-digi-wm8804-audio.dtbo \ + justboom-dac.dtbo \ + justboom-digi.dtbo \ + lirc-rpi.dtbo \ + mcp23017.dtbo \ + mcp23s17.dtbo \ + mcp2515-can0.dtbo \ + mcp2515-can1.dtbo \ + mcp3008.dtbo \ + midi-uart0.dtbo \ + mmc.dtbo \ + mz61581.dtbo \ + pi3-act-led.dtbo \ + pi3-disable-bt.dtbo \ + pi3-disable-wifi.dtbo \ + pi3-miniuart-bt.dtbo \ + piscreen.dtbo \ + piscreen2r.dtbo \ + pisound.dtbo \ + pitft22.dtbo \ + pitft28-capacitive.dtbo \ + pitft28-resistive.dtbo \ + pitft35-resistive.dtbo \ + pps-gpio.dtbo \ + pwm.dtbo \ + pwm-2chan.dtbo \ + qca7000.dtbo \ + raspidac3.dtbo \ + rpi-backlight.dtbo \ + rpi-cirrus-wm5102.dtbo \ + rpi-dac.dtbo \ + rpi-display.dtbo \ + rpi-ft5406.dtbo \ + rpi-proto.dtbo \ + rpi-sense.dtbo \ + rra-digidac1-wm8741-audio.dtbo \ + sc16is750-i2c.dtbo \ + sc16is752-spi1.dtbo \ + sdhost.dtbo \ + sdio.dtbo \ + sdio-1bit.dtbo \ + sdtweak.dtbo \ + smi.dtbo \ + smi-dev.dtbo \ + smi-nand.dtbo \ + spi-gpio35-39.dtbo \ + spi-rtc.dtbo \ + spi0-cs.dtbo \ + spi0-hw-cs.dtbo \ + spi1-1cs.dtbo \ + spi1-2cs.dtbo \ + spi1-3cs.dtbo \ + spi2-1cs.dtbo \ + spi2-2cs.dtbo \ + spi2-3cs.dtbo \ + tinylcd35.dtbo \ + uart1.dtbo \ + vc4-fkms-v3d.dtbo \ + vc4-kms-v3d.dtbo \ + vga666.dtbo \ + w1-gpio.dtbo \ + w1-gpio-pullup.dtbo \ + wittypi.dtbo + +targets += dtbs dtbs_install +targets += $(dtbo-y) + +always := $(dtbo-y) +clean-files := *.dtbo diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README new file mode 100644 index 0000000000000000000000000000000000000000..c1883bba938290f03826026651c764cfd4ac278b --- /dev/null +++ b/arch/arm/boot/dts/overlays/README @@ -0,0 +1,1458 @@ +Introduction +============ + +This directory contains Device Tree overlays. Device Tree makes it possible +to support many hardware configurations with a single kernel and without the +need to explicitly load or blacklist kernel modules. Note that this isn't a +"pure" Device Tree configuration (c.f. MACH_BCM2835) - some on-board devices +are still configured by the board support code, but the intention is to +eventually reach that goal. + +On Raspberry Pi, Device Tree usage is controlled from /boot/config.txt. By +default, the Raspberry Pi kernel boots with device tree enabled. You can +completely disable DT usage (for now) by adding: + + device_tree= + +to your config.txt, which should cause your Pi to revert to the old way of +doing things after a reboot. + +In /boot you will find a .dtb for each base platform. This describes the +hardware that is part of the Raspberry Pi board. The loader (start.elf and its +siblings) selects the .dtb file appropriate for the platform by name, and reads +it into memory. At this point, all of the optional interfaces (i2c, i2s, spi) +are disabled, but they can be enabled using Device Tree parameters: + + dtparam=i2c=on,i2s=on,spi=on + +However, this shouldn't be necessary in many use cases because loading an +overlay that requires one of those interfaces will cause it to be enabled +automatically, and it is advisable to only enable interfaces if they are +needed. + +Configuring additional, optional hardware is done using Device Tree overlays +(see below). + +raspi-config +============ + +The Advanced Options section of the raspi-config utility can enable and disable +Device Tree use, as well as toggling the I2C and SPI interfaces. Note that it +is possible to both enable an interface and blacklist the driver, if for some +reason you should want to defer the loading. + +Modules +======= + +As well as describing the hardware, Device Tree also gives enough information +to allow suitable driver modules to be located and loaded, with the corollary +that unneeded modules are not loaded. As a result it should be possible to +remove lines from /etc/modules, and /etc/modprobe.d/raspi-blacklist.conf can +have its contents deleted (or commented out). + +Using Overlays +============== + +Overlays are loaded using the "dtoverlay" directive. As an example, consider +the popular lirc-rpi module, the Linux Infrared Remote Control driver. In the +pre-DT world this would be loaded from /etc/modules, with an explicit +"modprobe lirc-rpi" command, or programmatically by lircd. With DT enabled, +this becomes a line in config.txt: + + dtoverlay=lirc-rpi + +This causes the file /boot/overlays/lirc-rpi.dtbo to be loaded. By +default it will use GPIOs 17 (out) and 18 (in), but this can be modified using +DT parameters: + + dtoverlay=lirc-rpi,gpio_out_pin=17,gpio_in_pin=13 + +Parameters always have default values, although in some cases (e.g. "w1-gpio") +it is necessary to provided multiple overlays in order to get the desired +behaviour. See the list of overlays below for a description of the parameters +and their defaults. + +The Overlay and Parameter Reference +=================================== + +N.B. When editing this file, please preserve the indentation levels to make it +simple to parse programmatically. NO HARD TABS. + + +Name: +Info: Configures the base Raspberry Pi hardware +Load: +Params: + audio Set to "on" to enable the onboard ALSA audio + interface (default "off") + + i2c_arm Set to "on" to enable the ARM's i2c interface + (default "off") + + i2c_vc Set to "on" to enable the i2c interface + usually reserved for the VideoCore processor + (default "off") + + i2c An alias for i2c_arm + + i2c_arm_baudrate Set the baudrate of the ARM's i2c interface + (default "100000") + + i2c_vc_baudrate Set the baudrate of the VideoCore i2c interface + (default "100000") + + i2c_baudrate An alias for i2c_arm_baudrate + + i2s Set to "on" to enable the i2s interface + (default "off") + + spi Set to "on" to enable the spi interfaces + (default "off") + + random Set to "on" to enable the hardware random + number generator (default "on") + + sd_overclock Clock (in MHz) to use when the MMC framework + requests 50MHz + + sd_force_pio Disable DMA support for SD driver (default off) + + sd_pio_limit Number of blocks above which to use DMA for + SD card (default 1) + + sd_debug Enable debug output from SD driver (default off) + + uart0 Set to "off" to disable uart0 (default "on") + + uart1 Set to "on" or "off" to enable or disable uart1 + (default varies) + + watchdog Set to "on" to enable the hardware watchdog + (default "off") + + act_led_trigger Choose which activity the LED tracks. + Use "heartbeat" for a nice load indicator. + (default "mmc") + + act_led_activelow Set to "on" to invert the sense of the LED + (default "off") + N.B. For Pi3 see pi3-act-led overlay. + + act_led_gpio Set which GPIO to use for the activity LED + (in case you want to connect it to an external + device) + (default "16" on a non-Plus board, "47" on a + Plus or Pi 2) + N.B. For Pi3 see pi3-act-led overlay. + + pwr_led_trigger + pwr_led_activelow + pwr_led_gpio + As for act_led_*, but using the PWR LED. + Not available on Model A/B boards. + + N.B. It is recommended to only enable those interfaces that are needed. + Leaving all interfaces enabled can lead to unwanted behaviour (i2c_vc + interfering with Pi Camera, I2S and SPI hogging GPIO pins, etc.) + Note also that i2c, i2c_arm and i2c_vc are aliases for the physical + interfaces i2c0 and i2c1. Use of the numeric variants is still possible + but deprecated because the ARM/VC assignments differ between board + revisions. The same board-specific mapping applies to i2c_baudrate, + and the other i2c baudrate parameters. + + +Name: adau1977-adc +Info: Overlay for activation of ADAU1977 ADC codec over I2C for control + and I2S for data. +Load: dtoverlay=adau1977-adc +Params: + + +Name: adau7002-simple +Info: Overlay for the activation of ADAU7002 stereo PDM to I2S converter. +Load: dtoverlay=adau7002-simple,= +Params: card-name Override the default, "adau7002", card name. + + +Name: ads1015 +Info: Overlay for activation of Texas Instruments ADS1015 ADC over I2C +Load: dtoverlay=ads1015,= +Params: addr I2C bus address of device. Set based on how the + addr pin is wired. (default=0x48 assumes addr + is pulled to GND) + cha_enable Enable virtual channel a. (default=true) + cha_cfg Set the configuration for virtual channel a. + (default=4 configures this channel for the + voltage at A0 with respect to GND) + cha_datarate Set the datarate (samples/sec) for this channel. + (default=4 sets 1600 sps) + cha_gain Set the gain of the Programmable Gain + Amplifier for this channel. (default=2 sets the + full scale of the channel to 2.048 Volts) + + Channel (ch) parameters can be set for each enabled channel. + A maximum of 4 channels can be enabled (letters a thru d). + For more information refer to the device datasheet at: + http://www.ti.com/lit/ds/symlink/ads1015.pdf + + +Name: ads1115 +Info: Texas Instruments ADS1115 ADC +Load: dtoverlay=ads1115,[=] +Params: addr I2C bus address of device. Set based on how the + addr pin is wired. (default=0x48 assumes addr + is pulled to GND) + cha_enable Enable virtual channel a. + cha_cfg Set the configuration for virtual channel a. + (default=4 configures this channel for the + voltage at A0 with respect to GND) + cha_datarate Set the datarate (samples/sec) for this channel. + (default=7 sets 860 sps) + cha_gain Set the gain of the Programmable Gain + Amplifier for this channel. (Default 1 sets the + full scale of the channel to 4.096 Volts) + + Channel parameters can be set for each enabled channel. + A maximum of 4 channels can be enabled (letters a thru d). + For more information refer to the device datasheet at: + http://www.ti.com/lit/ds/symlink/ads1115.pdf + + +Name: ads7846 +Info: ADS7846 Touch controller +Load: dtoverlay=ads7846,= +Params: cs SPI bus Chip Select (default 1) + speed SPI bus speed (default 2MHz, max 3.25MHz) + penirq GPIO used for PENIRQ. REQUIRED + penirq_pull Set GPIO pull (default 0=none, 2=pullup) + swapxy Swap x and y axis + xmin Minimum value on the X axis (default 0) + ymin Minimum value on the Y axis (default 0) + xmax Maximum value on the X axis (default 4095) + ymax Maximum value on the Y axis (default 4095) + pmin Minimum reported pressure value (default 0) + pmax Maximum reported pressure value (default 65535) + xohms Touchpanel sensitivity (X-plate resistance) + (default 400) + + penirq is required and usually xohms (60-100) has to be set as well. + Apart from that, pmax (255) and swapxy are also common. + The rest of the calibration can be done with xinput-calibrator. + See: github.com/notro/fbtft/wiki/FBTFT-on-Raspian + Device Tree binding document: + www.kernel.org/doc/Documentation/devicetree/bindings/input/ads7846.txt + + +Name: akkordion-iqdacplus +Info: Configures the Digital Dreamtime Akkordion Music Player (based on the + OEM IQAudIO DAC+ or DAC Zero module). +Load: dtoverlay=akkordion-iqdacplus,= +Params: 24db_digital_gain Allow gain to be applied via the PCM512x codec + Digital volume control. Enable with + dtoverlay=akkordion-iqdacplus,24db_digital_gain + (The default behaviour is that the Digital + volume control is limited to a maximum of + 0dB. ie. it can attenuate but not provide + gain. For most users, this will be desired + as it will prevent clipping. By appending + the 24db_digital_gain parameter, the Digital + volume control will allow up to 24dB of + gain. If this parameter is enabled, it is the + responsibility of the user to ensure that + the Digital volume control is set to a value + that does not result in clipping/distortion!) + + +Name: allo-piano-dac-pcm512x-audio +Info: Configures the Allo Piano DAC (2.0/2.1) audio cards. + (NB. This initial support is for 2.0 channel audio ONLY! ie. stereo. + The subwoofer outputs on the Piano 2.1 are not currently supported!) +Load: dtoverlay=allo-piano-dac-pcm512x-audio, +Params: 24db_digital_gain Allow gain to be applied via the PCM512x codec + Digital volume control. + (The default behaviour is that the Digital + volume control is limited to a maximum of + 0dB. ie. it can attenuate but not provide + gain. For most users, this will be desired + as it will prevent clipping. By appending + the 24db_digital_gain parameter, the Digital + volume control will allow up to 24dB of + gain. If this parameter is enabled, it is the + responsibility of the user to ensure that + the Digital volume control is set to a value + that does not result in clipping/distortion!) + + +Name: at86rf233 +Info: Configures the Atmel AT86RF233 802.15.4 low-power WPAN transceiver, + connected to spi0.0 +Load: dtoverlay=at86rf233,= +Params: interrupt GPIO used for INT (default 23) + reset GPIO used for Reset (default 24) + sleep GPIO used for Sleep (default 25) + speed SPI bus speed in Hz (default 3000000) + trim Fine tuning of the internal capacitance + arrays (0=+0pF, 15=+4.5pF, default 15) + + +Name: audioinjector-addons +Info: Configures the audioinjector.net audio add on soundcards +Load: dtoverlay=audioinjector-addons +Params: + + +Name: audioinjector-wm8731-audio +Info: Configures the audioinjector.net audio add on soundcard +Load: dtoverlay=audioinjector-wm8731-audio +Params: + + +Name: audremap +Info: Switches PWM sound output to pins 12 (Right) & 13 (Left) +Load: dtoverlay=audremap,= +Params: swap_lr Reverse the channel allocation, which will also + swap the audio jack outputs (default off) + enable_jack Don't switch off the audio jack output + (default off) + + +Name: bmp085_i2c-sensor +Info: This overlay is now deprecated - see i2c-sensor +Load: dtoverlay=bmp085_i2c-sensor +Params: + + +Name: dht11 +Info: Overlay for the DHT11/DHT21/DHT22 humidity/temperature sensors + Also sometimes found with the part number(s) AM230x. +Load: dtoverlay=dht11,= +Params: gpiopin GPIO connected to the sensor's DATA output. + (default 4) + + +Name: dionaudio-loco +Info: Configures the Dion Audio LOCO DAC-AMP +Load: dtoverlay=dionaudio-loco +Params: + + +Name: dionaudio-loco-v2 +Info: Configures the Dion Audio LOCO-V2 DAC-AMP +Load: dtoverlay=dionaudio-loco-v2,= +Params: 24db_digital_gain Allow gain to be applied via the PCM512x codec + Digital volume control. Enable with + "dtoverlay=hifiberry-dacplus,24db_digital_gain" + (The default behaviour is that the Digital + volume control is limited to a maximum of + 0dB. ie. it can attenuate but not provide + gain. For most users, this will be desired + as it will prevent clipping. By appending + the 24dB_digital_gain parameter, the Digital + volume control will allow up to 24dB of + gain. If this parameter is enabled, it is the + responsibility of the user to ensure that + the Digital volume control is set to a value + that does not result in clipping/distortion!) + + +Name: dpi18 +Info: Overlay for a generic 18-bit DPI display + This uses GPIOs 0-21 (so no I2C, uart etc.), and activates the output + 2-3 seconds after the kernel has started. +Load: dtoverlay=dpi18 +Params: + + +Name: dpi24 +Info: Overlay for a generic 24-bit DPI display + This uses GPIOs 0-27 (so no I2C, uart etc.), and activates the output + 2-3 seconds after the kernel has started. +Load: dtoverlay=dpi24 +Params: + + +Name: dwc-otg +Info: Selects the dwc_otg USB controller driver which has fiq support. This + is the default on all except the Pi Zero which defaults to dwc2. +Load: dtoverlay=dwc-otg +Params: + + +Name: dwc2 +Info: Selects the dwc2 USB controller driver +Load: dtoverlay=dwc2,= +Params: dr_mode Dual role mode: "host", "peripheral" or "otg" + + g-rx-fifo-size Size of rx fifo size in gadget mode + + g-np-tx-fifo-size Size of non-periodic tx fifo size in gadget + mode + + g-tx-fifo-size Size of periodic tx fifo per endpoint + (except ep0) in gadget mode + + +[ The ds1307-rtc overlay has been deleted. See i2c-rtc. ] + + +Name: enc28j60 +Info: Overlay for the Microchip ENC28J60 Ethernet Controller on SPI0 +Load: dtoverlay=enc28j60,= +Params: int_pin GPIO used for INT (default 25) + + speed SPI bus speed (default 12000000) + + +Name: enc28j60-spi2 +Info: Overlay for the Microchip ENC28J60 Ethernet Controller on SPI2 +Load: dtoverlay=enc28j60-spi2,= +Params: int_pin GPIO used for INT (default 39) + + speed SPI bus speed (default 12000000) + + +Name: fe-pi-audio +Info: Configures the Fe-Pi Audio Sound Card +Load: dtoverlay=fe-pi-audio +Params: + + +Name: gpio-ir +Info: Use GPIO pin as rc-core style infrared receiver input. The rc-core- + based gpio_ir_recv driver maps received keys directly to a + /dev/input/event* device, all decoding is done by the kernel - LIRC is + not required! The key mapping and other decoding parameters can be + configured by "ir-keytable" tool. +Load: dtoverlay=gpio-ir,= +Params: gpio_pin Input pin number. Default is 18. + + gpio_pull Desired pull-up/down state (off, down, up) + Default is "down". + + rc-map-name Default rc keymap (can also be changed by + ir-keytable), defaults to "rc-rc6-mce" + + +Name: gpio-poweroff +Info: Drives a GPIO high or low on poweroff (including halt) +Load: dtoverlay=gpio-poweroff,= +Params: gpiopin GPIO for signalling (default 26) + + active_low Set if the power control device requires a + high->low transition to trigger a power-down. + Note that this will require the support of a + custom dt-blob.bin to prevent a power-down + during the boot process, and that a reboot + will also cause the pin to go low. + + +Name: hifiberry-amp +Info: Configures the HifiBerry Amp and Amp+ audio cards +Load: dtoverlay=hifiberry-amp +Params: + + +Name: hifiberry-dac +Info: Configures the HifiBerry DAC audio card +Load: dtoverlay=hifiberry-dac +Params: + + +Name: hifiberry-dacplus +Info: Configures the HifiBerry DAC+ audio card +Load: dtoverlay=hifiberry-dacplus,= +Params: 24db_digital_gain Allow gain to be applied via the PCM512x codec + Digital volume control. Enable with + "dtoverlay=hifiberry-dacplus,24db_digital_gain" + (The default behaviour is that the Digital + volume control is limited to a maximum of + 0dB. ie. it can attenuate but not provide + gain. For most users, this will be desired + as it will prevent clipping. By appending + the 24dB_digital_gain parameter, the Digital + volume control will allow up to 24dB of + gain. If this parameter is enabled, it is the + responsibility of the user to ensure that + the Digital volume control is set to a value + that does not result in clipping/distortion!) + slave Force DAC+ Pro into slave mode, using Pi as + master for bit clock and frame clock. + + +Name: hifiberry-digi +Info: Configures the HifiBerry Digi and Digi+ audio card +Load: dtoverlay=hifiberry-digi +Params: + + +Name: hifiberry-digi-pro +Info: Configures the HifiBerry Digi+ Pro audio card +Load: dtoverlay=hifiberry-digi-pro +Params: + + +Name: hy28a +Info: HY28A - 2.8" TFT LCD Display Module by HAOYU Electronics + Default values match Texy's display shield +Load: dtoverlay=hy28a,= +Params: speed Display SPI bus speed + + rotate Display rotation {0,90,180,270} + + fps Delay between frame updates + + debug Debug output level {0-7} + + xohms Touchpanel sensitivity (X-plate resistance) + + resetgpio GPIO used to reset controller + + ledgpio GPIO used to control backlight + + +Name: hy28b +Info: HY28B - 2.8" TFT LCD Display Module by HAOYU Electronics + Default values match Texy's display shield +Load: dtoverlay=hy28b,= +Params: speed Display SPI bus speed + + rotate Display rotation {0,90,180,270} + + fps Delay between frame updates + + debug Debug output level {0-7} + + xohms Touchpanel sensitivity (X-plate resistance) + + resetgpio GPIO used to reset controller + + ledgpio GPIO used to control backlight + + +Name: i2c-bcm2708 +Info: Fall back to the i2c_bcm2708 driver for the i2c_arm bus. +Load: dtoverlay=i2c-bcm2708 +Params: + + +Name: i2c-gpio +Info: Adds support for software i2c controller on gpio pins +Load: dtoverlay=i2c-gpio,= +Params: i2c_gpio_sda GPIO used for I2C data (default "23") + + i2c_gpio_scl GPIO used for I2C clock (default "24") + + i2c_gpio_delay_us Clock delay in microseconds + (default "2" = ~100kHz) + + +Name: i2c-mux +Info: Adds support for a number of I2C bus multiplexers on i2c_arm +Load: dtoverlay=i2c-mux,= +Params: pca9542 Select the NXP PCA9542 device + + pca9545 Select the NXP PCA9545 device + + pca9548 Select the NXP PCA9548 device + + addr Change I2C address of the device (default 0x70) + + +[ The i2c-mux-pca9548a overlay has been deleted. See i2c-mux. ] + + +Name: i2c-pwm-pca9685a +Info: Adds support for an NXP PCA9685A I2C PWM controller on i2c_arm +Load: dtoverlay=i2c-pwm-pca9685a,= +Params: addr I2C address of PCA9685A (default 0x40) + + +Name: i2c-rtc +Info: Adds support for a number of I2C Real Time Clock devices +Load: dtoverlay=i2c-rtc,= +Params: abx80x Select one of the ABx80x family: + AB0801, AB0803, AB0804, AB0805, + AB1801, AB1803, AB1804, AB1805 + + ds1307 Select the DS1307 device + + ds1339 Select the DS1339 device + + ds3231 Select the DS3231 device + + mcp7940x Select the MCP7940x device + + mcp7941x Select the MCP7941x device + + pcf2127 Select the PCF2127 device + + pcf8523 Select the PCF8523 device + + pcf8563 Select the PCF8563 device + + trickle-diode-type Diode type for trickle charge - "standard" or + "schottky" (ABx80x only) + + trickle-resistor-ohms Resistor value for trickle charge (DS1339, + ABx80x) + + wakeup-source Specify that the RTC can be used as a wakeup + source + + +Name: i2c-sensor +Info: Adds support for a number of I2C barometric pressure and temperature + sensors on i2c_arm +Load: dtoverlay=i2c-sensor,= +Params: bmp085 Select the Bosch sensortronic BMP085 + + bmp280 Select the Bosch sensortronic BMP280 + + si7020 Select the Silicon Labs Si7013/20/21 humidity/ + temperature sensor + + +Name: i2c0-bcm2708 +Info: Enable the i2c_bcm2708 driver for the i2c0 bus. Not all pin combinations + are usable on all platforms. +Load: dtoverlay=i2c0-bcm2708,= +Params: sda0_pin GPIO pin for SDA0 (deprecated - use pins_*) + scl0_pin GPIO pin for SCL0 (deprecated - use pins_*) + pins_0_1 Use pins 0 and 1 (default) + pins_28_29 Use pins 28 and 29 + pins_44_45 Use pins 44 and 45 + pins_46_47 Use pins 46 and 47 + + +Name: i2c1-bcm2708 +Info: Enable the i2c_bcm2708 driver for the i2c1 bus +Load: dtoverlay=i2c1-bcm2708,= +Params: sda1_pin GPIO pin for SDA1 (2 or 44 - default 2) + scl1_pin GPIO pin for SCL1 (3 or 45 - default 3) + pin_func Alternative pin function (4 (alt0), 6 (alt2) - + default 4) + + +Name: i2s-gpio28-31 +Info: move I2S function block to GPIO 28 to 31 +Load: dtoverlay=i2s-gpio28-31 +Params: + + +Name: iqaudio-dac +Info: Configures the IQaudio DAC audio card +Load: dtoverlay=iqaudio-dac, +Params: 24db_digital_gain Allow gain to be applied via the PCM512x codec + Digital volume control. Enable with + "dtoverlay=iqaudio-dac,24db_digital_gain" + (The default behaviour is that the Digital + volume control is limited to a maximum of + 0dB. ie. it can attenuate but not provide + gain. For most users, this will be desired + as it will prevent clipping. By appending + the 24db_digital_gain parameter, the Digital + volume control will allow up to 24dB of + gain. If this parameter is enabled, it is the + responsibility of the user to ensure that + the Digital volume control is set to a value + that does not result in clipping/distortion!) + + +Name: iqaudio-dacplus +Info: Configures the IQaudio DAC+ audio card +Load: dtoverlay=iqaudio-dacplus,= +Params: 24db_digital_gain Allow gain to be applied via the PCM512x codec + Digital volume control. Enable with + "dtoverlay=iqaudio-dacplus,24db_digital_gain" + (The default behaviour is that the Digital + volume control is limited to a maximum of + 0dB. ie. it can attenuate but not provide + gain. For most users, this will be desired + as it will prevent clipping. By appending + the 24db_digital_gain parameter, the Digital + volume control will allow up to 24dB of + gain. If this parameter is enabled, it is the + responsibility of the user to ensure that + the Digital volume control is set to a value + that does not result in clipping/distortion!) + auto_mute_amp If specified, unmute/mute the IQaudIO amp when + starting/stopping audio playback. + unmute_amp If specified, unmute the IQaudIO amp once when + the DAC driver module loads. + + +Name: iqaudio-digi-wm8804-audio +Info: Configures the IQAudIO Digi WM8804 audio card +Load: dtoverlay=iqaudio-digi-wm8804-audio,= +Params: card_name Override the default, "IQAudIODigi", card name. + dai_name Override the default, "IQAudIO Digi", dai name. + dai_stream_name Override the default, "IQAudIO Digi HiFi", + dai stream name. + + +Name: justboom-dac +Info: Configures the JustBoom DAC HAT, Amp HAT, DAC Zero and Amp Zero audio + cards +Load: dtoverlay=justboom-dac,= +Params: 24db_digital_gain Allow gain to be applied via the PCM512x codec + Digital volume control. Enable with + "dtoverlay=justboom-dac,24db_digital_gain" + (The default behaviour is that the Digital + volume control is limited to a maximum of + 0dB. ie. it can attenuate but not provide + gain. For most users, this will be desired + as it will prevent clipping. By appending + the 24dB_digital_gain parameter, the Digital + volume control will allow up to 24dB of + gain. If this parameter is enabled, it is the + responsibility of the user to ensure that + the Digital volume control is set to a value + that does not result in clipping/distortion!) + + +Name: justboom-digi +Info: Configures the JustBoom Digi HAT and Digi Zero audio cards +Load: dtoverlay=justboom-digi +Params: + + +Name: lirc-rpi +Info: Configures lirc-rpi (Linux Infrared Remote Control for Raspberry Pi) + Consult the module documentation for more details. +Load: dtoverlay=lirc-rpi,= +Params: gpio_out_pin GPIO for output (default "17") + + gpio_in_pin GPIO for input (default "18") + + gpio_in_pull Pull up/down/off on the input pin + (default "down") + + sense Override the IR receive auto-detection logic: + "0" = force active-high + "1" = force active-low + "-1" = use auto-detection + (default "-1") + + softcarrier Turn the software carrier "on" or "off" + (default "on") + + invert "on" = invert the output pin (default "off") + + debug "on" = enable additional debug messages + (default "off") + + +Name: mcp23017 +Info: Configures the MCP23017 I2C GPIO expander +Load: dtoverlay=mcp23017,= +Params: gpiopin Gpio pin connected to the INTA output of the + MCP23017 (default: 4) + + addr I2C address of the MCP23017 (default: 0x20) + + +Name: mcp23s17 +Info: Configures the MCP23S08/17 SPI GPIO expanders. + If devices are present on SPI1 or SPI2, those interfaces must be enabled + with one of the spi1-1/2/3cs and/or spi2-1/2/3cs overlays. + If interrupts are enabled for a device on a given CS# on a SPI bus, that + device must be the only one present on that SPI bus/CS#. +Load: dtoverlay=mcp23s17,= +Params: s08-spi--present 4-bit integer, bitmap indicating MCP23S08 + devices present on SPI, CS# + + s17-spi--present 8-bit integer, bitmap indicating MCP23S17 + devices present on SPI, CS# + + s08-spi--int-gpio integer, enables interrupts on a single + MCP23S08 device on SPI, CS#, specifies + the GPIO pin to which INT output of MCP23S08 + is connected. + + s17-spi--int-gpio integer, enables mirrored interrupts on a + single MCP23S17 device on SPI, CS#, + specifies the GPIO pin to which either INTA + or INTB output of MCP23S17 is connected. + + +Name: mcp2515-can0 +Info: Configures the MCP2515 CAN controller on spi0.0 +Load: dtoverlay=mcp2515-can0,= +Params: oscillator Clock frequency for the CAN controller (Hz) + + spimaxfrequency Maximum SPI frequence (Hz) + + interrupt GPIO for interrupt signal + + +Name: mcp2515-can1 +Info: Configures the MCP2515 CAN controller on spi0.1 +Load: dtoverlay=mcp2515-can1,= +Params: oscillator Clock frequency for the CAN controller (Hz) + + spimaxfrequency Maximum SPI frequence (Hz) + + interrupt GPIO for interrupt signal + + +Name: mcp3008 +Info: Configures MCP3008 A/D converters + For devices on spi1 or spi2, the interfaces should be enabled + with one of the spi1-1/2/3cs and/or spi2-1/2/3cs overlays. +Load: dtoverlay=mcp3008,[=] +Params: spi--present boolean, configure device at spi, cs + spi--speed integer, set the spi bus speed for this device + + +Name: midi-uart0 +Info: Configures UART0 (ttyAMA0) so that a requested 38.4kbaud actually gets + 31.25kbaud, the frequency required for MIDI +Load: dtoverlay=midi-uart0 +Params: + + +Name: mmc +Info: Selects the bcm2835-mmc SD/MMC driver, optionally with overclock +Load: dtoverlay=mmc,= +Params: overclock_50 Clock (in MHz) to use when the MMC framework + requests 50MHz + + +Name: mz61581 +Info: MZ61581 display by Tontec +Load: dtoverlay=mz61581,= +Params: speed Display SPI bus speed + + rotate Display rotation {0,90,180,270} + + fps Delay between frame updates + + txbuflen Transmit buffer length (default 32768) + + debug Debug output level {0-7} + + xohms Touchpanel sensitivity (X-plate resistance) + + +[ The pcf2127-rtc overlay has been deleted. See i2c-rtc. ] + + +[ The pcf8523-rtc overlay has been deleted. See i2c-rtc. ] + + +[ The pcf8563-rtc overlay has been deleted. See i2c-rtc. ] + + +Name: pi3-act-led +Info: Pi3 uses a GPIO expander to drive the LEDs which can only be accessed + from the VPU. There is a special driver for this with a separate DT + node, which has the unfortunate consequence of breaking the + act_led_gpio and act_led_activelow dtparams. + This overlay changes the GPIO controller back to the standard one and + restores the dtparams. +Load: dtoverlay=pi3-act-led,= +Params: activelow Set to "on" to invert the sense of the LED + (default "off") + + gpio Set which GPIO to use for the activity LED + (in case you want to connect it to an external + device) + REQUIRED + + +Name: pi3-disable-bt +Info: Disable Pi3 Bluetooth and restore UART0/ttyAMA0 over GPIOs 14 & 15 + N.B. To disable the systemd service that initialises the modem so it + doesn't use the UART, use 'sudo systemctl disable hciuart'. +Load: dtoverlay=pi3-disable-bt +Params: + + +Name: pi3-disable-wifi +Info: Disable Pi3 onboard WiFi +Load: dtoverlay=pi3-disable-wifi +Params: + + +Name: pi3-miniuart-bt +Info: Switch Pi3 Bluetooth function to use the mini-UART (ttyS0) and restore + UART0/ttyAMA0 over GPIOs 14 & 15. Note that this may reduce the maximum + usable baudrate. + N.B. It is also necessary to edit /lib/systemd/system/hciuart.service + and replace ttyAMA0 with ttyS0, unless you have a system with udev rules + that create /dev/serial0 and /dev/serial1, in which case use + /dev/serial1 instead because it will always be correct. Furthermore, + you must also set core_freq=250 in config.txt or the miniuart will not + work. +Load: dtoverlay=pi3-miniuart-bt +Params: + + +Name: piscreen +Info: PiScreen display by OzzMaker.com +Load: dtoverlay=piscreen,= +Params: speed Display SPI bus speed + + rotate Display rotation {0,90,180,270} + + fps Delay between frame updates + + debug Debug output level {0-7} + + xohms Touchpanel sensitivity (X-plate resistance) + + +Name: piscreen2r +Info: PiScreen 2 with resistive TP display by OzzMaker.com +Load: dtoverlay=piscreen2r,= +Params: speed Display SPI bus speed + + rotate Display rotation {0,90,180,270} + + fps Delay between frame updates + + debug Debug output level {0-7} + + xohms Touchpanel sensitivity (X-plate resistance) + + +Name: pisound +Info: Configures the Blokas Labs pisound card +Load: dtoverlay=pisound +Params: + + +Name: pitft22 +Info: Adafruit PiTFT 2.2" screen +Load: dtoverlay=pitft22,= +Params: speed Display SPI bus speed + + rotate Display rotation {0,90,180,270} + + fps Delay between frame updates + + debug Debug output level {0-7} + + +Name: pitft28-capacitive +Info: Adafruit PiTFT 2.8" capacitive touch screen +Load: dtoverlay=pitft28-capacitive,= +Params: speed Display SPI bus speed + + rotate Display rotation {0,90,180,270} + + fps Delay between frame updates + + debug Debug output level {0-7} + + touch-sizex Touchscreen size x (default 240) + + touch-sizey Touchscreen size y (default 320) + + touch-invx Touchscreen inverted x axis + + touch-invy Touchscreen inverted y axis + + touch-swapxy Touchscreen swapped x y axis + + +Name: pitft28-resistive +Info: Adafruit PiTFT 2.8" resistive touch screen +Load: dtoverlay=pitft28-resistive,= +Params: speed Display SPI bus speed + + rotate Display rotation {0,90,180,270} + + fps Delay between frame updates + + debug Debug output level {0-7} + + +Name: pitft35-resistive +Info: Adafruit PiTFT 3.5" resistive touch screen +Load: dtoverlay=pitft35-resistive,= +Params: speed Display SPI bus speed + + rotate Display rotation {0,90,180,270} + + fps Delay between frame updates + + debug Debug output level {0-7} + + +Name: pps-gpio +Info: Configures the pps-gpio (pulse-per-second time signal via GPIO). +Load: dtoverlay=pps-gpio,= +Params: gpiopin Input GPIO (default "18") + assert_falling_edge When present, assert is indicated by a falling + edge, rather than by a rising edge + + +Name: pwm +Info: Configures a single PWM channel + Legal pin,function combinations for each channel: + PWM0: 12,4(Alt0) 18,2(Alt5) 40,4(Alt0) 52,5(Alt1) + PWM1: 13,4(Alt0) 19,2(Alt5) 41,4(Alt0) 45,4(Alt0) 53,5(Alt1) + N.B.: + 1) Pin 18 is the only one available on all platforms, and + it is the one used by the I2S audio interface. + Pins 12 and 13 might be better choices on an A+, B+ or Pi2. + 2) The onboard analogue audio output uses both PWM channels. + 3) So be careful mixing audio and PWM. + 4) Currently the clock must have been enabled and configured + by other means. +Load: dtoverlay=pwm,= +Params: pin Output pin (default 18) - see table + func Pin function (default 2 = Alt5) - see above + clock PWM clock frequency (informational) + + +Name: pwm-2chan +Info: Configures both PWM channels + Legal pin,function combinations for each channel: + PWM0: 12,4(Alt0) 18,2(Alt5) 40,4(Alt0) 52,5(Alt1) + PWM1: 13,4(Alt0) 19,2(Alt5) 41,4(Alt0) 45,4(Alt0) 53,5(Alt1) + N.B.: + 1) Pin 18 is the only one available on all platforms, and + it is the one used by the I2S audio interface. + Pins 12 and 13 might be better choices on an A+, B+ or Pi2. + 2) The onboard analogue audio output uses both PWM channels. + 3) So be careful mixing audio and PWM. + 4) Currently the clock must have been enabled and configured + by other means. +Load: dtoverlay=pwm-2chan,= +Params: pin Output pin (default 18) - see table + pin2 Output pin for other channel (default 19) + func Pin function (default 2 = Alt5) - see above + func2 Function for pin2 (default 2 = Alt5) + clock PWM clock frequency (informational) + + +Name: qca7000 +Info: I2SE's Evaluation Board for PLC Stamp micro +Load: dtoverlay=qca7000,= +Params: int_pin GPIO pin for interrupt signal (default 23) + + speed SPI bus speed (default 12 MHz) + + +Name: raspidac3 +Info: Configures the RaspiDAV Rev.3x audio card +Load: dtoverlay=raspidac3 +Params: + + +Name: rpi-backlight +Info: Raspberry Pi official display backlight driver +Load: dtoverlay=rpi-backlight +Params: + + +Name: rpi-cirrus-wm5102 +Info: Configures the Cirrus Logic Audio Card +Load: dtoverlay=rpi-cirrus-wm5102 +Params: + + +Name: rpi-dac +Info: Configures the RPi DAC audio card +Load: dtoverlay=rpi-dac +Params: + + +Name: rpi-display +Info: RPi-Display - 2.8" Touch Display by Watterott +Load: dtoverlay=rpi-display,= +Params: speed Display SPI bus speed + rotate Display rotation {0,90,180,270} + fps Delay between frame updates + debug Debug output level {0-7} + xohms Touchpanel sensitivity (X-plate resistance) + swapxy Swap x and y axis + + +Name: rpi-ft5406 +Info: Official Raspberry Pi display touchscreen +Load: dtoverlay=rpi-ft5406 +Params: + + +Name: rpi-proto +Info: Configures the RPi Proto audio card +Load: dtoverlay=rpi-proto +Params: + + +Name: rpi-sense +Info: Raspberry Pi Sense HAT +Load: dtoverlay=rpi-sense +Params: + + +Name: rra-digidac1-wm8741-audio +Info: Configures the Red Rocks Audio DigiDAC1 soundcard +Load: dtoverlay=rra-digidac1-wm8741-audio +Params: + + +Name: sc16is750-i2c +Info: Overlay for the NXP SC16IS750 UART with I2C Interface + Enables the chip on I2C1 at 0x48. To select another address, + please refer to table 10 in reference manual. + +Load: dtoverlay=sc16is750-i2c,= +Params: int_pin GPIO used for IRQ (default 24) + addr Address (default 0x48) + + +Name: sc16is752-spi1 +Info: Overlay for the NXP SC16IS752 Dual UART with SPI Interface + Enables the chip on SPI1. + N.B.: spi1 is only accessible on devices with a 40pin header, eg: + A+, B+, Zero and PI2 B; as well as the Compute Module. + +Load: dtoverlay=sc16is752-spi1,= +Params: int_pin GPIO used for IRQ (default 24) + + +Name: sdhost +Info: Selects the bcm2835-sdhost SD/MMC driver, optionally with overclock. + N.B. This overlay is designed for situations where the mmc driver is + the default, so it disables the other (mmc) interface - this will kill + WiFi on a Pi3. If this isn't what you want, either use the sdtweak + overlay or the new sd_* dtparams of the base DTBs. +Load: dtoverlay=sdhost,= +Params: overclock_50 Clock (in MHz) to use when the MMC framework + requests 50MHz + + force_pio Disable DMA support (default off) + + pio_limit Number of blocks above which to use DMA + (default 1) + + debug Enable debug output (default off) + + +Name: sdio +Info: Selects the bcm2835-sdhost SD/MMC driver, optionally with overclock, + and enables SDIO via GPIOs 22-27. +Load: dtoverlay=sdio,= +Params: overclock_50 SD Clock (in MHz) to use when the MMC framework + requests 50MHz + + sdio_overclock SDIO Clock (in MHz) to use when the MMC + framework requests 50MHz + + force_pio Disable DMA support (default off) + + pio_limit Number of blocks above which to use DMA + (default 1) + + debug Enable debug output (default off) + + poll_once Disable SDIO-device polling every second + (default on: polling once at boot-time) + + bus_width Set the SDIO host bus width (default 4 bits) + + +Name: sdio-1bit +Info: Selects the bcm2835-sdhost SD/MMC driver, optionally with overclock, + and enables 1-bit SDIO via GPIOs 22-25. +Load: dtoverlay=sdio-1bit,= +Params: overclock_50 SD Clock (in MHz) to use when the MMC framework + requests 50MHz + + sdio_overclock SDIO Clock (in MHz) to use when the MMC + framework requests 50MHz + + force_pio Disable DMA support (default off) + + pio_limit Number of blocks above which to use DMA + (default 1) + + debug Enable debug output (default off) + + poll_once Disable SDIO-device polling every second + (default on: polling once at boot-time) + + +Name: sdtweak +Info: Tunes the bcm2835-sdhost SD/MMC driver + N.B. This functionality is now available via the sd_* dtparams in the + base DTB. +Load: dtoverlay=sdtweak,= +Params: overclock_50 Clock (in MHz) to use when the MMC framework + requests 50MHz + + force_pio Disable DMA support (default off) + + pio_limit Number of blocks above which to use DMA + (default 1) + + debug Enable debug output (default off) + + +Name: smi +Info: Enables the Secondary Memory Interface peripheral. Uses GPIOs 2-25! +Load: dtoverlay=smi +Params: + + +Name: smi-dev +Info: Enables the userspace interface for the SMI driver +Load: dtoverlay=smi-dev +Params: + + +Name: smi-nand +Info: Enables access to NAND flash via the SMI interface +Load: dtoverlay=smi-nand +Params: + + +Name: spi-gpio35-39 +Info: Move SPI function block to GPIO 35 to 39 +Load: dtoverlay=spi-gpio35-39 +Params: + + +Name: spi-rtc +Info: Adds support for a number of SPI Real Time Clock devices +Load: dtoverlay=spi-rtc,= +Params: pcf2123 Select the PCF2123 device + + +Name: spi0-cs +Info: Allows the (software) CS pins for SPI0 to be changed +Load: dtoverlay=spi0-cs,= +Params: cs0_pin GPIO pin for CS0 (default 8) + cs1_pin GPIO pin for CS1 (default 7) + + +Name: spi0-hw-cs +Info: Re-enables hardware CS/CE (chip selects) for SPI0 +Load: dtoverlay=spi0-hw-cs +Params: + + +Name: spi1-1cs +Info: Enables spi1 with a single chip select (CS) line and associated spidev + dev node. The gpio pin number for the CS line and spidev device node + creation are configurable. + N.B.: spi1 is only accessible on devices with a 40pin header, eg: + A+, B+, Zero and PI2 B; as well as the Compute Module. +Load: dtoverlay=spi1-1cs,= +Params: cs0_pin GPIO pin for CS0 (default 18 - BCM SPI1_CE0). + cs0_spidev Set to 'disabled' to stop the creation of a + userspace device node /dev/spidev1.0 (default + is 'okay' or enabled). + + +Name: spi1-2cs +Info: Enables spi1 with two chip select (CS) lines and associated spidev + dev nodes. The gpio pin numbers for the CS lines and spidev device node + creation are configurable. + N.B.: spi1 is only accessible on devices with a 40pin header, eg: + A+, B+, Zero and PI2 B; as well as the Compute Module. +Load: dtoverlay=spi1-2cs,= +Params: cs0_pin GPIO pin for CS0 (default 18 - BCM SPI1_CE0). + cs1_pin GPIO pin for CS1 (default 17 - BCM SPI1_CE1). + cs0_spidev Set to 'disabled' to stop the creation of a + userspace device node /dev/spidev1.0 (default + is 'okay' or enabled). + cs1_spidev Set to 'disabled' to stop the creation of a + userspace device node /dev/spidev1.1 (default + is 'okay' or enabled). + + +Name: spi1-3cs +Info: Enables spi1 with three chip select (CS) lines and associated spidev + dev nodes. The gpio pin numbers for the CS lines and spidev device node + creation are configurable. + N.B.: spi1 is only accessible on devices with a 40pin header, eg: + A+, B+, Zero and PI2 B; as well as the Compute Module. +Load: dtoverlay=spi1-3cs,= +Params: cs0_pin GPIO pin for CS0 (default 18 - BCM SPI1_CE0). + cs1_pin GPIO pin for CS1 (default 17 - BCM SPI1_CE1). + cs2_pin GPIO pin for CS2 (default 16 - BCM SPI1_CE2). + cs0_spidev Set to 'disabled' to stop the creation of a + userspace device node /dev/spidev1.0 (default + is 'okay' or enabled). + cs1_spidev Set to 'disabled' to stop the creation of a + userspace device node /dev/spidev1.1 (default + is 'okay' or enabled). + cs2_spidev Set to 'disabled' to stop the creation of a + userspace device node /dev/spidev1.2 (default + is 'okay' or enabled). + + +Name: spi2-1cs +Info: Enables spi2 with a single chip select (CS) line and associated spidev + dev node. The gpio pin number for the CS line and spidev device node + creation are configurable. + N.B.: spi2 is only accessible with the Compute Module. +Load: dtoverlay=spi2-1cs,= +Params: cs0_pin GPIO pin for CS0 (default 43 - BCM SPI2_CE0). + cs0_spidev Set to 'disabled' to stop the creation of a + userspace device node /dev/spidev2.0 (default + is 'okay' or enabled). + + +Name: spi2-2cs +Info: Enables spi2 with two chip select (CS) lines and associated spidev + dev nodes. The gpio pin numbers for the CS lines and spidev device node + creation are configurable. + N.B.: spi2 is only accessible with the Compute Module. +Load: dtoverlay=spi2-2cs,= +Params: cs0_pin GPIO pin for CS0 (default 43 - BCM SPI2_CE0). + cs1_pin GPIO pin for CS1 (default 44 - BCM SPI2_CE1). + cs0_spidev Set to 'disabled' to stop the creation of a + userspace device node /dev/spidev2.0 (default + is 'okay' or enabled). + cs1_spidev Set to 'disabled' to stop the creation of a + userspace device node /dev/spidev2.1 (default + is 'okay' or enabled). + + +Name: spi2-3cs +Info: Enables spi2 with three chip select (CS) lines and associated spidev + dev nodes. The gpio pin numbers for the CS lines and spidev device node + creation are configurable. + N.B.: spi2 is only accessible with the Compute Module. +Load: dtoverlay=spi2-3cs,= +Params: cs0_pin GPIO pin for CS0 (default 43 - BCM SPI2_CE0). + cs1_pin GPIO pin for CS1 (default 44 - BCM SPI2_CE1). + cs2_pin GPIO pin for CS2 (default 45 - BCM SPI2_CE2). + cs0_spidev Set to 'disabled' to stop the creation of a + userspace device node /dev/spidev2.0 (default + is 'okay' or enabled). + cs1_spidev Set to 'disabled' to stop the creation of a + userspace device node /dev/spidev2.1 (default + is 'okay' or enabled). + cs2_spidev Set to 'disabled' to stop the creation of a + userspace device node /dev/spidev2.2 (default + is 'okay' or enabled). + + +Name: tinylcd35 +Info: 3.5" Color TFT Display by www.tinylcd.com + Options: Touch, RTC, keypad +Load: dtoverlay=tinylcd35,= +Params: speed Display SPI bus speed + + rotate Display rotation {0,90,180,270} + + fps Delay between frame updates + + debug Debug output level {0-7} + + touch Enable touch panel + + touchgpio Touch controller IRQ GPIO + + xohms Touchpanel: Resistance of X-plate in ohms + + rtc-pcf PCF8563 Real Time Clock + + rtc-ds DS1307 Real Time Clock + + keypad Enable keypad + + Examples: + Display with touchpanel, PCF8563 RTC and keypad: + dtoverlay=tinylcd35,touch,rtc-pcf,keypad + Old touch display: + dtoverlay=tinylcd35,touch,touchgpio=3 + + +Name: uart1 +Info: Enable uart1 in place of uart0 +Load: dtoverlay=uart1,= +Params: txd1_pin GPIO pin for TXD1 (14, 32 or 40 - default 14) + + rxd1_pin GPIO pin for RXD1 (15, 33 or 41 - default 15) + + +Name: vc4-fkms-v3d +Info: Enable Eric Anholt's DRM VC4 V3D driver on top of the dispmanx + display stack. +Load: dtoverlay=vc4-fkms-v3d, +Params: cma-256 CMA is 256MB, 256MB-aligned (needs 1GB) + cma-192 CMA is 192MB, 256MB-aligned (needs 1GB) + cma-128 CMA is 128MB, 128MB-aligned + cma-96 CMA is 96MB, 128MB-aligned + cma-64 CMA is 64MB, 64MB-aligned + + +Name: vc4-kms-v3d +Info: Enable Eric Anholt's DRM VC4 HDMI/HVS/V3D driver. Running startx or + booting to GUI while this overlay is in use will cause interesting + lockups. +Load: dtoverlay=vc4-kms-v3d, +Params: cma-256 CMA is 256MB, 256MB-aligned (needs 1GB) + cma-192 CMA is 192MB, 256MB-aligned (needs 1GB) + cma-128 CMA is 128MB, 128MB-aligned + cma-96 CMA is 96MB, 128MB-aligned + cma-64 CMA is 64MB, 64MB-aligned + + +Name: vga666 +Info: Overlay for the Fen Logic VGA666 board + This uses GPIOs 2-21 (so no I2C), and activates the output 2-3 seconds + after the kernel has started. +Load: dtoverlay=vga666 +Params: + + +Name: w1-gpio +Info: Configures the w1-gpio Onewire interface module. + Use this overlay if you *don't* need a GPIO to drive an external pullup. +Load: dtoverlay=w1-gpio,= +Params: gpiopin GPIO for I/O (default "4") + + pullup Non-zero, "on", or "y" to enable the parasitic + power (2-wire, power-on-data) feature + + +Name: w1-gpio-pullup +Info: Configures the w1-gpio Onewire interface module. + Use this overlay if you *do* need a GPIO to drive an external pullup. +Load: dtoverlay=w1-gpio-pullup,= +Params: gpiopin GPIO for I/O (default "4") + + pullup Non-zero, "on", or "y" to enable the parasitic + power (2-wire, power-on-data) feature + + extpullup GPIO for external pullup (default "5") + + +Name: wittypi +Info: Configures the wittypi RTC module. +Load: dtoverlay=wittypi,= +Params: led_gpio GPIO for LED (default "17") + led_trigger Choose which activity the LED tracks (default + "default-on") + + +Troubleshooting +=============== + +If you are experiencing problems that you think are DT-related, enable DT +diagnostic output by adding this to /boot/config.txt: + + dtdebug=on + +and rebooting. Then run: + + sudo vcdbg log msg + +and look for relevant messages. + +Further reading +=============== + +This is only meant to be a quick introduction to the subject of Device Tree on +Raspberry Pi. There is a more complete explanation here: + +http://www.raspberrypi.org/documentation/configuration/device-tree.md diff --git a/arch/arm/boot/dts/overlays/adau1977-adc-overlay.dts b/arch/arm/boot/dts/overlays/adau1977-adc-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..1aaca71c1b677e414ada9a3f94e60e5e2cf30815 --- /dev/null +++ b/arch/arm/boot/dts/overlays/adau1977-adc-overlay.dts @@ -0,0 +1,40 @@ +// Definitions for ADAU1977 ADC +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2c>; + + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + adau1977: codec@11 { + compatible = "adi,adau1977"; + reg = <0x11>; + reset-gpios = <&gpio 5 0>; + AVDD-supply = <&vdd_3v3_reg>; + }; + }; + }; + + fragment@1 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@2 { + target = <&sound>; + __overlay__ { + compatible = "adi,adau1977-adc"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/adau7002-simple-overlay.dts b/arch/arm/boot/dts/overlays/adau7002-simple-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..e67e6625d7967abc92cf00cb604d4c12fd76b377 --- /dev/null +++ b/arch/arm/boot/dts/overlays/adau7002-simple-overlay.dts @@ -0,0 +1,52 @@ +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target-path = "/"; + __overlay__ { + adau7002_codec: adau7002-codec { + #sound-dai-cells = <0>; + compatible = "adi,adau7002"; +/* IOVDD-supply = <&supply>;*/ + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&sound>; + sound_overlay: __overlay__ { + compatible = "simple-audio-card"; + simple-audio-card,format = "i2s"; + simple-audio-card,name = "adau7002"; + simple-audio-card,bitclock-slave = <&dailink0_slave>; + simple-audio-card,frame-slave = <&dailink0_slave>; + simple-audio-card,widgets = + "Microphone", "Microphone Jack"; + simple-audio-card,routing = + "PDM_DAT", "Microphone Jack"; + status = "okay"; + simple-audio-card,cpu { + sound-dai = <&i2s>; + }; + dailink0_slave: simple-audio-card,codec { + sound-dai = <&adau7002_codec>; + }; + }; + }; + + + __overrides__ { + card-name = <&sound_overlay>,"simple-audio-card,name"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/ads1015-overlay.dts b/arch/arm/boot/dts/overlays/ads1015-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..02b9de46299bae8f22e1a665a482c0cb99cd30c9 --- /dev/null +++ b/arch/arm/boot/dts/overlays/ads1015-overlay.dts @@ -0,0 +1,98 @@ +/* + * 2016 - Erik Sejr + */ +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + /* ----------- ADS1015 ------------ */ + fragment@0 { + target = <&i2c_arm>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + ads1015: ads1015 { + compatible = "ti,ads1015"; + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x48>; + }; + }; + }; + + fragment@1 { + target-path = "i2c_arm/ads1015"; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + channel_a: channel_a { + reg = <4>; + ti,gain = <2>; + ti,datarate = <4>; + }; + }; + }; + + fragment@2 { + target-path = "i2c_arm/ads1015"; + __dormant__ { + #address-cells = <1>; + #size-cells = <0>; + channel_b: channel_b { + reg = <5>; + ti,gain = <2>; + ti,datarate = <4>; + }; + }; + }; + + fragment@3 { + target-path = "i2c_arm/ads1015"; + __dormant__ { + #address-cells = <1>; + #size-cells = <0>; + channel_c: channel_c { + reg = <6>; + ti,gain = <2>; + ti,datarate = <4>; + }; + }; + }; + + fragment@4 { + target-path = "i2c_arm/ads1015"; + __dormant__ { + #address-cells = <1>; + #size-cells = <0>; + channel_d: channel_d { + reg = <7>; + ti,gain = <2>; + ti,datarate = <4>; + }; + }; + }; + + __overrides__ { + addr = <&ads1015>,"reg:0"; + cha_enable = <0>,"=1"; + cha_cfg = <&channel_a>,"reg:0"; + cha_gain = <&channel_a>,"ti,gain:0"; + cha_datarate = <&channel_a>,"ti,datarate:0"; + chb_enable = <0>,"=2"; + chb_cfg = <&channel_b>,"reg:0"; + chb_gain = <&channel_b>,"ti,gain:0"; + chb_datarate = <&channel_b>,"ti,datarate:0"; + chc_enable = <0>,"=3"; + chc_cfg = <&channel_c>,"reg:0"; + chc_gain = <&channel_c>,"ti,gain:0"; + chc_datarate = <&channel_c>,"ti,datarate:0"; + chd_enable = <0>,"=4"; + chd_cfg = <&channel_d>,"reg:0"; + chd_gain = <&channel_d>,"ti,gain:0"; + chd_datarate = <&channel_d>,"ti,datarate:0"; + }; + +}; diff --git a/arch/arm/boot/dts/overlays/ads1115-overlay.dts b/arch/arm/boot/dts/overlays/ads1115-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..7c16a1af3172d14e1a976b1776b9f1677278beed --- /dev/null +++ b/arch/arm/boot/dts/overlays/ads1115-overlay.dts @@ -0,0 +1,103 @@ +/* + * TI ADS1115 multi-channel ADC overlay + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2c_arm>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + ads1115: ads1115 { + compatible = "ti,ads1115"; + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x48>; + }; + }; + }; + + fragment@1 { + target-path = "i2c_arm/ads1115"; + __dormant__ { + #address-cells = <1>; + #size-cells = <0>; + + channel_a: channel_a { + reg = <4>; + ti,gain = <1>; + ti,datarate = <7>; + }; + }; + }; + + fragment@2 { + target-path = "i2c_arm/ads1115"; + __dormant__ { + #address-cells = <1>; + #size-cells = <0>; + + channel_b: channel_b { + reg = <5>; + ti,gain = <1>; + ti,datarate = <7>; + }; + }; + }; + + fragment@3 { + target-path = "i2c_arm/ads1115"; + __dormant__ { + #address-cells = <1>; + #size-cells = <0>; + + channel_c: channel_c { + reg = <6>; + ti,gain = <1>; + ti,datarate = <7>; + }; + }; + }; + + fragment@4 { + target-path = "i2c_arm/ads1115"; + __dormant__ { + #address-cells = <1>; + #size-cells = <0>; + + channel_d: channel_d { + reg = <7>; + ti,gain = <1>; + ti,datarate = <7>; + }; + }; + }; + + __overrides__ { + addr = <&ads1115>,"reg:0"; + cha_enable = <0>,"=1"; + cha_cfg = <&channel_a>,"reg:0"; + cha_gain = <&channel_a>,"ti,gain:0"; + cha_datarate = <&channel_a>,"ti,datarate:0"; + chb_enable = <0>,"=2"; + chb_cfg = <&channel_b>,"reg:0"; + chb_gain = <&channel_b>,"ti,gain:0"; + chb_datarate = <&channel_b>,"ti,datarate:0"; + chc_enable = <0>,"=3"; + chc_cfg = <&channel_c>,"reg:0"; + chc_gain = <&channel_c>,"ti,gain:0"; + chc_datarate = <&channel_c>,"ti,datarate:0"; + chd_enable = <0>,"=4"; + chd_cfg = <&channel_d>,"reg:0"; + chd_gain = <&channel_d>,"ti,gain:0"; + chd_datarate = <&channel_d>,"ti,datarate:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/ads7846-overlay.dts b/arch/arm/boot/dts/overlays/ads7846-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..edf2dc9d5d5f6830508edabf2d04c42d27ba9b41 --- /dev/null +++ b/arch/arm/boot/dts/overlays/ads7846-overlay.dts @@ -0,0 +1,89 @@ +/* + * Generic Device Tree overlay for the ADS7846 touch controller + * + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&spidev0>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@2 { + target = <&spidev1>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@3 { + target = <&gpio>; + __overlay__ { + ads7846_pins: ads7846_pins { + brcm,pins = <255>; /* illegal default value */ + brcm,function = <0>; /* in */ + brcm,pull = <0>; /* none */ + }; + }; + }; + + fragment@4 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + ads7846: ads7846@1 { + compatible = "ti,ads7846"; + reg = <1>; + pinctrl-names = "default"; + pinctrl-0 = <&ads7846_pins>; + + spi-max-frequency = <2000000>; + interrupts = <255 2>; /* high-to-low edge triggered */ + interrupt-parent = <&gpio>; + pendown-gpio = <&gpio 255 0>; + + /* driver defaults */ + ti,x-min = /bits/ 16 <0>; + ti,y-min = /bits/ 16 <0>; + ti,x-max = /bits/ 16 <0x0FFF>; + ti,y-max = /bits/ 16 <0x0FFF>; + ti,pressure-min = /bits/ 16 <0>; + ti,pressure-max = /bits/ 16 <0xFFFF>; + ti,x-plate-ohms = /bits/ 16 <400>; + }; + }; + }; + __overrides__ { + cs = <&ads7846>,"reg:0"; + speed = <&ads7846>,"spi-max-frequency:0"; + penirq = <&ads7846_pins>,"brcm,pins:0", /* REQUIRED */ + <&ads7846>,"interrupts:0", + <&ads7846>,"pendown-gpio:4"; + penirq_pull = <&ads7846_pins>,"brcm,pull:0"; + swapxy = <&ads7846>,"ti,swap-xy?"; + xmin = <&ads7846>,"ti,x-min;0"; + ymin = <&ads7846>,"ti,y-min;0"; + xmax = <&ads7846>,"ti,x-max;0"; + ymax = <&ads7846>,"ti,y-max;0"; + pmin = <&ads7846>,"ti,pressure-min;0"; + pmax = <&ads7846>,"ti,pressure-max;0"; + xohms = <&ads7846>,"ti,x-plate-ohms;0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/akkordion-iqdacplus-overlay.dts b/arch/arm/boot/dts/overlays/akkordion-iqdacplus-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..241d03b9b79ef5e833cc28819003946a9eb319fd --- /dev/null +++ b/arch/arm/boot/dts/overlays/akkordion-iqdacplus-overlay.dts @@ -0,0 +1,49 @@ +// Definitions for Digital Dreamtime Akkordion using IQaudIO DAC+ or DACZero +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + pcm5122@4c { + #sound-dai-cells = <0>; + compatible = "ti,pcm5122"; + reg = <0x4c>; + AVDD-supply = <&vdd_3v3_reg>; + DVDD-supply = <&vdd_3v3_reg>; + CPVDD-supply = <&vdd_3v3_reg>; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&sound>; + frag2: __overlay__ { + compatible = "iqaudio,iqaudio-dac"; + card_name = "Akkordion"; + dai_name = "IQaudIO DAC"; + dai_stream_name = "IQaudIO DAC HiFi"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; + + __overrides__ { + 24db_digital_gain = <&frag2>,"iqaudio,24db_digital_gain?"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/allo-piano-dac-pcm512x-audio-overlay.dts b/arch/arm/boot/dts/overlays/allo-piano-dac-pcm512x-audio-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..a5468d850a911cd509365cf25f8ffa6ad071b90a --- /dev/null +++ b/arch/arm/boot/dts/overlays/allo-piano-dac-pcm512x-audio-overlay.dts @@ -0,0 +1,54 @@ +/* + * Definitions for Allo Piano DAC (2.0/2.1) boards + * + * NB. The Piano DAC 2.1 board contains 2x TI PCM5142 DAC's. One DAC is stereo + * (left/right) and the other provides a subwoofer output, using DSP on the + * chip for digital high/low pass crossover. + * The initial support for this hardware, that doesn't require any codec driver + * modifications, uses only one DAC chip for stereo (left/right) output, the + * chip with 0x4c slave address. The other chip at 0x4d is currently ignored! + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + pcm5142@4c { + #sound-dai-cells = <0>; + compatible = "ti,pcm5142"; + reg = <0x4c>; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&sound>; + piano_dac: __overlay__ { + compatible = "allo,piano-dac"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; + + __overrides__ { + 24db_digital_gain = + <&piano_dac>,"allo,24db_digital_gain?"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/at86rf233-overlay.dts b/arch/arm/boot/dts/overlays/at86rf233-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..880c7539d496fb10672ee573f7c51b8a213cecf7 --- /dev/null +++ b/arch/arm/boot/dts/overlays/at86rf233-overlay.dts @@ -0,0 +1,57 @@ +/dts-v1/; +/plugin/; + +/* Overlay for Atmel AT86RF233 IEEE 802.15.4 WPAN transceiver on spi0.0 */ + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2836", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + + status = "okay"; + + lowpan0: at86rf233@0 { + compatible = "atmel,at86rf233"; + reg = <0>; + interrupt-parent = <&gpio>; + interrupts = <23 4>; /* active high */ + reset-gpio = <&gpio 24 1>; + sleep-gpio = <&gpio 25 1>; + spi-max-frequency = <3000000>; + xtal-trim = /bits/ 8 <0xf>; + }; + }; + }; + + fragment@1 { + target = <&spidev0>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@2 { + target = <&gpio>; + __overlay__ { + lowpan0_pins: lowpan0_pins { + brcm,pins = <23 24 25>; + brcm,function = <0 1 1>; /* in out out */ + }; + }; + }; + + __overrides__ { + interrupt = <&lowpan0>, "interrupts:0", + <&lowpan0_pins>, "brcm,pins:0"; + reset = <&lowpan0>, "reset-gpio:4", + <&lowpan0_pins>, "brcm,pins:4"; + sleep = <&lowpan0>, "sleep-gpio:4", + <&lowpan0_pins>, "brcm,pins:8"; + speed = <&lowpan0>, "spi-max-frequency:0"; + trim = <&lowpan0>, "xtal-trim.0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/audioinjector-addons-overlay.dts b/arch/arm/boot/dts/overlays/audioinjector-addons-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..dbf2f3cacc2e6bf5b7116fbadd97f2781580a79c --- /dev/null +++ b/arch/arm/boot/dts/overlays/audioinjector-addons-overlay.dts @@ -0,0 +1,50 @@ +// Definitions for audioinjector.net audio add on soundcard +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + cs42448: cs42448@48 { + #sound-dai-cells = <0>; + compatible = "cirrus,cs42448"; + reg = <0x48>; + clocks = <&cs42448_mclk>; + clock-names = "mclk"; + status = "okay"; + }; + + cs42448_mclk: codec-mclk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <49152000>; + }; + }; + }; + + fragment@2 { + target = <&sound>; + __overlay__ { + compatible = "ai,audioinjector-octo-soundcard"; + mult-gpios = <&gpio 27 0>, <&gpio 22 0>, <&gpio 23 0>, + <&gpio 24 0>; + i2s-controller = <&i2s>; + codec = <&cs42448>; + status = "okay"; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/audioinjector-wm8731-audio-overlay.dts b/arch/arm/boot/dts/overlays/audioinjector-wm8731-audio-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..4ed66577fa1d59e7b167ffdfd5a3f0de066cded2 --- /dev/null +++ b/arch/arm/boot/dts/overlays/audioinjector-wm8731-audio-overlay.dts @@ -0,0 +1,39 @@ +// Definitions for audioinjector.net audio add on soundcard +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + wm8731@1a { + #sound-dai-cells = <0>; + compatible = "wlf,wm8731"; + reg = <0x1a>; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&sound>; + __overlay__ { + compatible = "ai,audioinjector-pi-soundcard"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/audremap-overlay.dts b/arch/arm/boot/dts/overlays/audremap-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..9582d6ab31218b4ed7b1d42a9190ca6efe9bd531 --- /dev/null +++ b/arch/arm/boot/dts/overlays/audremap-overlay.dts @@ -0,0 +1,19 @@ +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&audio_pins>; + frag0: __overlay__ { + brcm,pins = < 12 13 >; + brcm,function = < 4 >; /* alt0 alt0 */ + }; + }; + + __overrides__ { + swap_lr = <&frag0>, "swap_lr?"; + enable_jack = <&frag0>, "enable_jack?"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/bmp085_i2c-sensor-overlay.dts b/arch/arm/boot/dts/overlays/bmp085_i2c-sensor-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..782b1715467e943c18fe936cc76448f3db960fbc --- /dev/null +++ b/arch/arm/boot/dts/overlays/bmp085_i2c-sensor-overlay.dts @@ -0,0 +1,23 @@ +// Definitions for BMP085/BMP180 digital barometric pressure and temperature sensors from Bosch Sensortec +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2c_arm>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + bmp085@77 { + compatible = "bosch,bmp085"; + reg = <0x77>; + default-oversampling = <3>; + status = "okay"; + }; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/dht11-overlay.dts b/arch/arm/boot/dts/overlays/dht11-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..9bf67fd57bada3c3e06c09744fb184767bab5d14 --- /dev/null +++ b/arch/arm/boot/dts/overlays/dht11-overlay.dts @@ -0,0 +1,39 @@ +/* + * Overlay for the DHT11/21/22 humidity/temperature sensor modules. + */ +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target-path = "/"; + __overlay__ { + + dht11: dht11@0 { + compatible = "dht11"; + pinctrl-names = "default"; + pinctrl-0 = <&dht11_pins>; + gpios = <&gpio 4 0>; + status = "okay"; + }; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + dht11_pins: dht11_pins { + brcm,pins = <4>; + brcm,function = <0>; // in + brcm,pull = <0>; // off + }; + }; + }; + + __overrides__ { + gpiopin = <&dht11_pins>,"brcm,pins:0", + <&dht11>,"gpios:4"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/dionaudio-loco-overlay.dts b/arch/arm/boot/dts/overlays/dionaudio-loco-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..3930f412bca4454c6673fb19859e607b360bc6c3 --- /dev/null +++ b/arch/arm/boot/dts/overlays/dionaudio-loco-overlay.dts @@ -0,0 +1,39 @@ +// Definitions for Dion Audio LOCO DAC-AMP + +/* + * PCM5242 DAC (in hardware mode) and TPA3118 AMP. + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target-path = "/"; + __overlay__ { + pcm5102a-codec { + #sound-dai-cells = <0>; + compatible = "ti,pcm5102a"; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&sound>; + __overlay__ { + compatible = "dionaudio,loco-pcm5242-tpa3118"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/dionaudio-loco-v2-overlay.dts b/arch/arm/boot/dts/overlays/dionaudio-loco-v2-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..a1af93de30119734e8d14cbd454589d365a3ba10 --- /dev/null +++ b/arch/arm/boot/dts/overlays/dionaudio-loco-v2-overlay.dts @@ -0,0 +1,49 @@ +/* + * Definitions for Dion Audio LOCO-V2 DAC-AMP + * eg. dtoverlay=dionaudio-loco-v2 + * + * PCM5242 DAC (in software mode) and TPA3255 AMP. + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&sound>; + frag0: __overlay__ { + compatible = "dionaudio,dionaudio-loco-v2"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; + + fragment@1 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@2 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + pcm5122@4c { + #sound-dai-cells = <0>; + compatible = "ti,pcm5122"; + reg = <0x4d>; + status = "okay"; + }; + }; + }; + + __overrides__ { + 24db_digital_gain = <&frag0>,"dionaudio,24db_digital_gain?"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/dpi18-overlay.dts b/arch/arm/boot/dts/overlays/dpi18-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..8098d5e28a71ffbc717db5c6b88305d2ba6e3175 --- /dev/null +++ b/arch/arm/boot/dts/overlays/dpi18-overlay.dts @@ -0,0 +1,31 @@ +/dts-v1/; +/plugin/; + +/{ + compatible = "brcm,bcm2708"; + + // There is no DPI driver module, but we need a platform device + // node (that doesn't already use pinctrl) to hang the pinctrl + // reference on - leds will do + + fragment@0 { + target = <&leds>; + __overlay__ { + pinctrl-names = "default"; + pinctrl-0 = <&dpi18_pins>; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + dpi18_pins: dpi18_pins { + brcm,pins = <0 1 2 3 4 5 6 7 8 9 10 11 + 12 13 14 15 16 17 18 19 20 + 21>; + brcm,function = <6>; /* alt2 */ + brcm,pull = <0>; /* no pull */ + }; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/dpi24-overlay.dts b/arch/arm/boot/dts/overlays/dpi24-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..e4dbe40218a008ef4028c1214740c3d6bc574724 --- /dev/null +++ b/arch/arm/boot/dts/overlays/dpi24-overlay.dts @@ -0,0 +1,31 @@ +/dts-v1/; +/plugin/; + +/{ + compatible = "brcm,bcm2708"; + + // There is no DPI driver module, but we need a platform device + // node (that doesn't already use pinctrl) to hang the pinctrl + // reference on - leds will do + + fragment@0 { + target = <&leds>; + __overlay__ { + pinctrl-names = "default"; + pinctrl-0 = <&dpi24_pins>; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + dpi24_pins: dpi24_pins { + brcm,pins = <0 1 2 3 4 5 6 7 8 9 10 11 + 12 13 14 15 16 17 18 19 20 + 21 22 23 24 25 26 27>; + brcm,function = <6>; /* alt2 */ + brcm,pull = <0>; /* no pull */ + }; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/dwc-otg-overlay.dts b/arch/arm/boot/dts/overlays/dwc-otg-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..fc48bd1eac605115c3b89fddfe39f5ea6181459f --- /dev/null +++ b/arch/arm/boot/dts/overlays/dwc-otg-overlay.dts @@ -0,0 +1,20 @@ +/dts-v1/; +/plugin/; + +/{ + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&usb>; + #address-cells = <1>; + #size-cells = <1>; + __overlay__ { + compatible = "brcm,bcm2708-usb"; + reg = <0x7e980000 0x10000>, + <0x7e006000 0x1000>; + interrupts = <2 0>, + <1 9>; + status = "okay"; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/dwc2-overlay.dts b/arch/arm/boot/dts/overlays/dwc2-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..527abc9f0ddf71f4dc7d58336d87684c931cc2f3 --- /dev/null +++ b/arch/arm/boot/dts/overlays/dwc2-overlay.dts @@ -0,0 +1,29 @@ +/dts-v1/; +/plugin/; + +/{ + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&usb>; + #address-cells = <1>; + #size-cells = <1>; + dwc2_usb: __overlay__ { + compatible = "brcm,bcm2835-usb"; + reg = <0x7e980000 0x10000>; + interrupts = <1 9>; + dr_mode = "otg"; + g-np-tx-fifo-size = <32>; + g-rx-fifo-size = <256>; + g-tx-fifo-size = <256 128 128 64 64 64 32>; + status = "okay"; + }; + }; + + __overrides__ { + dr_mode = <&dwc2_usb>, "dr_mode"; + g-np-tx-fifo-size = <&dwc2_usb>,"g-np-tx-fifo-size:0"; + g-rx-fifo-size = <&dwc2_usb>,"g-rx-fifo-size:0"; + g-tx-fifo-size = <&dwc2_usb>,"g-tx-fifo-size:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/enc28j60-overlay.dts b/arch/arm/boot/dts/overlays/enc28j60-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..db8a8feed94c010e368065fdd88b028622303b6f --- /dev/null +++ b/arch/arm/boot/dts/overlays/enc28j60-overlay.dts @@ -0,0 +1,53 @@ +// Overlay for the Microchip ENC28J60 Ethernet Controller +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + status = "okay"; + + eth1: enc28j60@0{ + compatible = "microchip,enc28j60"; + reg = <0>; /* CE0 */ + pinctrl-names = "default"; + pinctrl-0 = <ð1_pins>; + interrupt-parent = <&gpio>; + interrupts = <25 0x2>; /* falling edge */ + spi-max-frequency = <12000000>; + status = "okay"; + }; + }; + }; + + fragment@1 { + target = <&spidev0>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@2 { + target = <&gpio>; + __overlay__ { + eth1_pins: eth1_pins { + brcm,pins = <25>; + brcm,function = <0>; /* in */ + brcm,pull = <0>; /* none */ + }; + }; + }; + + __overrides__ { + int_pin = <ð1>, "interrupts:0", + <ð1_pins>, "brcm,pins:0"; + speed = <ð1>, "spi-max-frequency:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/enc28j60-spi2-overlay.dts b/arch/arm/boot/dts/overlays/enc28j60-spi2-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..946c9d2107a83335b11f094e75945a509595ab7c --- /dev/null +++ b/arch/arm/boot/dts/overlays/enc28j60-spi2-overlay.dts @@ -0,0 +1,47 @@ +// Overlay for the Microchip ENC28J60 Ethernet Controller - SPI2 Compute Module +// Interrupt pin: 39 +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&spi2>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + status = "okay"; + + eth1: enc28j60@0{ + compatible = "microchip,enc28j60"; + reg = <0>; /* CE0 */ + pinctrl-names = "default"; + pinctrl-0 = <ð1_pins>; + interrupt-parent = <&gpio>; + interrupts = <39 0x2>; /* falling edge */ + spi-max-frequency = <12000000>; + status = "okay"; + }; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + eth1_pins: eth1_pins { + brcm,pins = <39>; + brcm,function = <0>; /* in */ + brcm,pull = <0>; /* none */ + }; + }; + }; + + __overrides__ { + int_pin = <ð1>, "interrupts:0", + <ð1_pins>, "brcm,pins:0"; + speed = <ð1>, "spi-max-frequency:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/fe-pi-audio-overlay.dts b/arch/arm/boot/dts/overlays/fe-pi-audio-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..81a07ed5a8c7594e65f0df2176418cac57a7910c --- /dev/null +++ b/arch/arm/boot/dts/overlays/fe-pi-audio-overlay.dts @@ -0,0 +1,70 @@ +// Definitions for Fe-Pi Audio +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&clocks>; + __overlay__ { + sgtl5000_mclk: sgtl5000_mclk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <12288000>; + clock-output-names = "sgtl5000-mclk"; + }; + }; + }; + + fragment@1 { + target = <&soc>; + __overlay__ { + reg_1v8: reg_1v8@0 { + compatible = "regulator-fixed"; + regulator-name = "1V8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + }; + }; + }; + + fragment@2 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + sgtl5000@0a { + #sound-dai-cells = <0>; + compatible = "fepi,sgtl5000"; + reg = <0x0a>; + clocks = <&sgtl5000_mclk>; + micbias-resistor-k-ohms = <2>; + micbias-voltage-m-volts = <3000>; + VDDA-supply = <&vdd_3v3_reg>; + VDDIO-supply = <&vdd_3v3_reg>; + VDDD-supply = <®_1v8>; + status = "okay"; + }; + }; + }; + + fragment@3 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@4 { + target = <&sound>; + __overlay__ { + compatible = "fe-pi,fe-pi-audio"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/gpio-ir-overlay.dts b/arch/arm/boot/dts/overlays/gpio-ir-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..af5baf7ddc92be7a59ad3d5f9a9fefba915bed05 --- /dev/null +++ b/arch/arm/boot/dts/overlays/gpio-ir-overlay.dts @@ -0,0 +1,44 @@ +// Definitions for ir-gpio module +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target-path = "/"; + __overlay__ { + gpio_ir: ir-receiver { + compatible = "gpio-ir-receiver"; + + // pin number, high or low + gpios = <&gpio 18 1>; + + // parameter for keymap name + linux,rc-map-name = "rc-rc6-mce"; + + status = "okay"; + }; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + gpio_ir_pins: gpio_ir_pins { + brcm,pins = <18>; // pin 18 + brcm,function = <0>; // in + brcm,pull = <1>; // down + }; + }; + }; + + __overrides__ { + // parameters + gpio_pin = <&gpio_ir>,"gpios:4", + <&gpio_ir_pins>,"brcm,pins:0"; // pin number + gpio_pull = <&gpio_ir_pins>,"brcm,pull:0"; // pull-up/down state + + rc-map-name = <&gpio_ir>,"linux,rc-map-name"; // default rc map + }; +}; diff --git a/arch/arm/boot/dts/overlays/gpio-poweroff-overlay.dts b/arch/arm/boot/dts/overlays/gpio-poweroff-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..ff8cb36d94d4940d5151ace24afc4ad1a9aa9fb6 --- /dev/null +++ b/arch/arm/boot/dts/overlays/gpio-poweroff-overlay.dts @@ -0,0 +1,34 @@ +// Definitions for gpio-poweroff module +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target-path = "/"; + __overlay__ { + power_ctrl: power_ctrl { + compatible = "gpio-poweroff"; + gpios = <&gpio 26 0>; + force; + }; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + power_ctrl_pins: power_ctrl_pins { + brcm,pins = <26>; + brcm,function = <1>; // out + }; + }; + }; + + __overrides__ { + gpiopin = <&power_ctrl>,"gpios:4", + <&power_ctrl_pins>,"brcm,pins:0"; + active_low = <&power_ctrl>,"gpios:8"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/hifiberry-amp-overlay.dts b/arch/arm/boot/dts/overlays/hifiberry-amp-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..5f5785534fd3d9a97309796f842c8881e2d6979a --- /dev/null +++ b/arch/arm/boot/dts/overlays/hifiberry-amp-overlay.dts @@ -0,0 +1,39 @@ +// Definitions for HiFiBerry Amp/Amp+ +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + tas5713@1b { + #sound-dai-cells = <0>; + compatible = "ti,tas5713"; + reg = <0x1b>; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&sound>; + __overlay__ { + compatible = "hifiberry,hifiberry-amp"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/hifiberry-dac-overlay.dts b/arch/arm/boot/dts/overlays/hifiberry-dac-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..0b74fdc6e0f640967a5681b28360e33b8d4b7cfa --- /dev/null +++ b/arch/arm/boot/dts/overlays/hifiberry-dac-overlay.dts @@ -0,0 +1,34 @@ +// Definitions for HiFiBerry DAC +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target-path = "/"; + __overlay__ { + pcm5102a-codec { + #sound-dai-cells = <0>; + compatible = "ti,pcm5102a"; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&sound>; + __overlay__ { + compatible = "hifiberry,hifiberry-dac"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/hifiberry-dacplus-overlay.dts b/arch/arm/boot/dts/overlays/hifiberry-dacplus-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..b4dc99633b9d409565c0443de378a4460c7a966a --- /dev/null +++ b/arch/arm/boot/dts/overlays/hifiberry-dacplus-overlay.dts @@ -0,0 +1,59 @@ +// Definitions for HiFiBerry DAC+ +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target-path = "/clocks"; + __overlay__ { + dacpro_osc: dacpro_osc { + compatible = "hifiberry,dacpro-clk"; + #clock-cells = <0>; + }; + }; + }; + + fragment@1 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@2 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + pcm5122@4d { + #sound-dai-cells = <0>; + compatible = "ti,pcm5122"; + reg = <0x4d>; + clocks = <&dacpro_osc>; + AVDD-supply = <&vdd_3v3_reg>; + DVDD-supply = <&vdd_3v3_reg>; + CPVDD-supply = <&vdd_3v3_reg>; + status = "okay"; + }; + }; + }; + + fragment@3 { + target = <&sound>; + hifiberry_dacplus: __overlay__ { + compatible = "hifiberry,hifiberry-dacplus"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; + + __overrides__ { + 24db_digital_gain = + <&hifiberry_dacplus>,"hifiberry,24db_digital_gain?"; + slave = <&hifiberry_dacplus>,"hifiberry-dacplus,slave?"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/hifiberry-digi-overlay.dts b/arch/arm/boot/dts/overlays/hifiberry-digi-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..64cb1e00343b57e3d7dee864416e558dc3163117 --- /dev/null +++ b/arch/arm/boot/dts/overlays/hifiberry-digi-overlay.dts @@ -0,0 +1,41 @@ +// Definitions for HiFiBerry Digi +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + wm8804@3b { + #sound-dai-cells = <0>; + compatible = "wlf,wm8804"; + reg = <0x3b>; + PVDD-supply = <&vdd_3v3_reg>; + DVDD-supply = <&vdd_3v3_reg>; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&sound>; + __overlay__ { + compatible = "hifiberry,hifiberry-digi"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/hifiberry-digi-pro-overlay.dts b/arch/arm/boot/dts/overlays/hifiberry-digi-pro-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..d02479ca4a25c3b2da75fe737fd457b1882c20b1 --- /dev/null +++ b/arch/arm/boot/dts/overlays/hifiberry-digi-pro-overlay.dts @@ -0,0 +1,43 @@ +// Definitions for HiFiBerry Digi Pro +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + wm8804@3b { + #sound-dai-cells = <0>; + compatible = "wlf,wm8804"; + reg = <0x3b>; + PVDD-supply = <&vdd_3v3_reg>; + DVDD-supply = <&vdd_3v3_reg>; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&sound>; + __overlay__ { + compatible = "hifiberry,hifiberry-digi"; + i2s-controller = <&i2s>; + status = "okay"; + clock44-gpio = <&gpio 5 0>; + clock48-gpio = <&gpio 6 0>; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/hy28a-overlay.dts b/arch/arm/boot/dts/overlays/hy28a-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..ac0f3c28ea855a620dc6a3385d9d15009f26358d --- /dev/null +++ b/arch/arm/boot/dts/overlays/hy28a-overlay.dts @@ -0,0 +1,93 @@ +/* + * Device Tree overlay for HY28A display + * + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&spidev0>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@2 { + target = <&spidev1>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@3 { + target = <&gpio>; + __overlay__ { + hy28a_pins: hy28a_pins { + brcm,pins = <17 25 18>; + brcm,function = <0 1 1>; /* in out out */ + }; + }; + }; + + fragment@4 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + hy28a: hy28a@0{ + compatible = "ilitek,ili9320"; + reg = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&hy28a_pins>; + + spi-max-frequency = <32000000>; + spi-cpol; + spi-cpha; + rotate = <270>; + bgr; + fps = <50>; + buswidth = <8>; + startbyte = <0x70>; + reset-gpios = <&gpio 25 0>; + led-gpios = <&gpio 18 1>; + debug = <0>; + }; + + hy28a_ts: hy28a-ts@1 { + compatible = "ti,ads7846"; + reg = <1>; + + spi-max-frequency = <2000000>; + interrupts = <17 2>; /* high-to-low edge triggered */ + interrupt-parent = <&gpio>; + pendown-gpio = <&gpio 17 0>; + ti,x-plate-ohms = /bits/ 16 <100>; + ti,pressure-max = /bits/ 16 <255>; + }; + }; + }; + __overrides__ { + speed = <&hy28a>,"spi-max-frequency:0"; + rotate = <&hy28a>,"rotate:0"; + fps = <&hy28a>,"fps:0"; + debug = <&hy28a>,"debug:0"; + xohms = <&hy28a_ts>,"ti,x-plate-ohms;0"; + resetgpio = <&hy28a>,"reset-gpios:4", + <&hy28a_pins>, "brcm,pins:1"; + ledgpio = <&hy28a>,"led-gpios:4", + <&hy28a_pins>, "brcm,pins:2"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/hy28b-overlay.dts b/arch/arm/boot/dts/overlays/hy28b-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..8018aebde8e557f45ffd63eb86f6c7a1048fe3cb --- /dev/null +++ b/arch/arm/boot/dts/overlays/hy28b-overlay.dts @@ -0,0 +1,148 @@ +/* + * Device Tree overlay for HY28b display shield by Texy + * + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&spidev0>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@2 { + target = <&spidev1>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@3 { + target = <&gpio>; + __overlay__ { + hy28b_pins: hy28b_pins { + brcm,pins = <17 25 18>; + brcm,function = <0 1 1>; /* in out out */ + }; + }; + }; + + fragment@4 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + hy28b: hy28b@0{ + compatible = "ilitek,ili9325"; + reg = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&hy28b_pins>; + + spi-max-frequency = <48000000>; + spi-cpol; + spi-cpha; + rotate = <270>; + bgr; + fps = <50>; + buswidth = <8>; + startbyte = <0x70>; + reset-gpios = <&gpio 25 0>; + led-gpios = <&gpio 18 1>; + + gamma = "04 1F 4 7 7 0 7 7 6 0\n0F 00 1 7 4 0 0 0 6 7"; + + init = <0x10000e7 0x0010 + 0x1000000 0x0001 + 0x1000001 0x0100 + 0x1000002 0x0700 + 0x1000003 0x1030 + 0x1000004 0x0000 + 0x1000008 0x0207 + 0x1000009 0x0000 + 0x100000a 0x0000 + 0x100000c 0x0001 + 0x100000d 0x0000 + 0x100000f 0x0000 + 0x1000010 0x0000 + 0x1000011 0x0007 + 0x1000012 0x0000 + 0x1000013 0x0000 + 0x2000032 + 0x1000010 0x1590 + 0x1000011 0x0227 + 0x2000032 + 0x1000012 0x009c + 0x2000032 + 0x1000013 0x1900 + 0x1000029 0x0023 + 0x100002b 0x000e + 0x2000032 + 0x1000020 0x0000 + 0x1000021 0x0000 + 0x2000032 + 0x1000050 0x0000 + 0x1000051 0x00ef + 0x1000052 0x0000 + 0x1000053 0x013f + 0x1000060 0xa700 + 0x1000061 0x0001 + 0x100006a 0x0000 + 0x1000080 0x0000 + 0x1000081 0x0000 + 0x1000082 0x0000 + 0x1000083 0x0000 + 0x1000084 0x0000 + 0x1000085 0x0000 + 0x1000090 0x0010 + 0x1000092 0x0000 + 0x1000093 0x0003 + 0x1000095 0x0110 + 0x1000097 0x0000 + 0x1000098 0x0000 + 0x1000007 0x0133 + 0x1000020 0x0000 + 0x1000021 0x0000 + 0x2000064>; + debug = <0>; + }; + + hy28b_ts: hy28b-ts@1 { + compatible = "ti,ads7846"; + reg = <1>; + + spi-max-frequency = <2000000>; + interrupts = <17 2>; /* high-to-low edge triggered */ + interrupt-parent = <&gpio>; + pendown-gpio = <&gpio 17 0>; + ti,x-plate-ohms = /bits/ 16 <100>; + ti,pressure-max = /bits/ 16 <255>; + }; + }; + }; + __overrides__ { + speed = <&hy28b>,"spi-max-frequency:0"; + rotate = <&hy28b>,"rotate:0"; + fps = <&hy28b>,"fps:0"; + debug = <&hy28b>,"debug:0"; + xohms = <&hy28b_ts>,"ti,x-plate-ohms;0"; + resetgpio = <&hy28b>,"reset-gpios:4", + <&hy28b_pins>, "brcm,pins:1"; + ledgpio = <&hy28b>,"led-gpios:4", + <&hy28b_pins>, "brcm,pins:2"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/i2c-bcm2708-overlay.dts b/arch/arm/boot/dts/overlays/i2c-bcm2708-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..0afc6b405414c97428278dd3e8836759092aedb5 --- /dev/null +++ b/arch/arm/boot/dts/overlays/i2c-bcm2708-overlay.dts @@ -0,0 +1,13 @@ +/dts-v1/; +/plugin/; + +/{ + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2c_arm>; + __overlay__ { + compatible = "brcm,bcm2708-i2c"; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts b/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..b72b32e936774d901bc253b06e025c2dd48bdb1b --- /dev/null +++ b/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts @@ -0,0 +1,43 @@ +// Overlay for i2c_gpio bitbanging host bus. +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target-path = "/"; + __overlay__ { + i2c_gpio: i2c@0 { + compatible = "i2c-gpio"; + gpios = <&gpio 23 0 /* sda */ + &gpio 24 0 /* scl */ + >; + i2c-gpio,delay-us = <2>; /* ~100 kHz */ + #address-cells = <1>; + #size-cells = <0>; + }; + }; + }; + + fragment@1 { + target-path = "/aliases"; + __overlay__ { + i2c_gpio = "/i2c@0"; + }; + }; + + fragment@2 { + target-path = "/__symbols__"; + __overlay__ { + i2c_gpio = "/i2c@0"; + }; + }; + + __overrides__ { + i2c_gpio_sda = <&i2c_gpio>,"gpios:4"; + i2c_gpio_scl = <&i2c_gpio>,"gpios:16"; + i2c_gpio_delay_us = <&i2c_gpio>,"i2c-gpio,delay-us:0"; + }; +}; + diff --git a/arch/arm/boot/dts/overlays/i2c-mux-overlay.dts b/arch/arm/boot/dts/overlays/i2c-mux-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..976d38e781539093e91fe641497d8a6701dd6035 --- /dev/null +++ b/arch/arm/boot/dts/overlays/i2c-mux-overlay.dts @@ -0,0 +1,139 @@ +// Umbrella I2C Mux overlay + +/dts-v1/; +/plugin/; + +/{ + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2c_arm>; + __dormant__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + pca9542: mux@70 { + compatible = "nxp,pca9542"; + reg = <0x70>; + #address-cells = <1>; + #size-cells = <0>; + + i2c@0 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0>; + }; + i2c@1 { + #address-cells = <1>; + #size-cells = <0>; + reg = <1>; + }; + }; + }; + }; + + fragment@1 { + target = <&i2c_arm>; + __dormant__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + pca9545: mux@70 { + compatible = "nxp,pca9545"; + reg = <0x70>; + #address-cells = <1>; + #size-cells = <0>; + + i2c@0 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0>; + }; + i2c@1 { + #address-cells = <1>; + #size-cells = <0>; + reg = <1>; + }; + i2c@2 { + #address-cells = <1>; + #size-cells = <0>; + reg = <2>; + }; + i2c@3 { + #address-cells = <1>; + #size-cells = <0>; + reg = <3>; + }; + }; + }; + }; + + fragment@2 { + target = <&i2c_arm>; + __dormant__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + pca9548: mux@70 { + compatible = "nxp,pca9548"; + reg = <0x70>; + #address-cells = <1>; + #size-cells = <0>; + + i2c@0 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0>; + }; + i2c@1 { + #address-cells = <1>; + #size-cells = <0>; + reg = <1>; + }; + i2c@2 { + #address-cells = <1>; + #size-cells = <0>; + reg = <2>; + }; + i2c@3 { + #address-cells = <1>; + #size-cells = <0>; + reg = <3>; + }; + i2c@4 { + #address-cells = <1>; + #size-cells = <0>; + reg = <4>; + }; + i2c@5 { + #address-cells = <1>; + #size-cells = <0>; + reg = <5>; + }; + i2c@6 { + #address-cells = <1>; + #size-cells = <0>; + reg = <6>; + }; + i2c@7 { + #address-cells = <1>; + #size-cells = <0>; + reg = <7>; + }; + }; + }; + }; + + __overrides__ { + pca9542 = <0>, "+0"; + pca9545 = <0>, "+1"; + pca9548 = <0>, "+2"; + + addr = <&pca9542>,"reg:0", + <&pca9545>,"reg:0", + <&pca9548>,"reg:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/i2c-pwm-pca9685a-overlay.dts b/arch/arm/boot/dts/overlays/i2c-pwm-pca9685a-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..d1ffd2326669e46ad68939f94713cc992dee57e0 --- /dev/null +++ b/arch/arm/boot/dts/overlays/i2c-pwm-pca9685a-overlay.dts @@ -0,0 +1,26 @@ +// Definitions for NXP PCA9685A I2C PWM controller on ARM I2C bus. +/dts-v1/; +/plugin/; + +/{ + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2c_arm>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + pca: pca@40 { + compatible = "nxp,pca9685"; + #pwm-cells = <2>; + reg = <0x40>; + status = "okay"; + }; + }; + }; + __overrides__ { + addr = <&pca>,"reg:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..1efcf0b712c9c5c19210545002ac1f0931db58f5 --- /dev/null +++ b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts @@ -0,0 +1,83 @@ +// Definitions for several I2C based Real Time Clocks +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2c_arm>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + abx80x: abx80x@69 { + compatible = "abracon,abx80x"; + reg = <0x69>; + abracon,tc-diode = "standard"; + abracon,tc-resistor = <0>; + status = "disable"; + }; + ds1307: ds1307@68 { + compatible = "maxim,ds1307"; + reg = <0x68>; + status = "disable"; + }; + ds1339: ds1339@68 { + compatible = "dallas,ds1339"; + trickle-resistor-ohms = <0>; + reg = <0x68>; + status = "disable"; + }; + mcp7940x: mcp7940x@6f { + compatible = "microchip,mcp7940x"; + reg = <0x6f>; + status = "disable"; + }; + mcp7941x: mcp7941x@6f { + compatible = "microchip,mcp7941x"; + reg = <0x6f>; + status = "disable"; + }; + ds3231: ds3231@68 { + compatible = "maxim,ds3231"; + reg = <0x68>; + status = "disable"; + }; + pcf2127: pcf2127@51 { + compatible = "nxp,pcf2127"; + reg = <0x51>; + status = "disable"; + }; + pcf8523: pcf8523@68 { + compatible = "nxp,pcf8523"; + reg = <0x68>; + status = "disable"; + }; + pcf8563: pcf8563@51 { + compatible = "nxp,pcf8563"; + reg = <0x51>; + status = "disable"; + }; + }; + }; + __overrides__ { + abx80x = <&abx80x>,"status"; + ds1307 = <&ds1307>,"status"; + ds1339 = <&ds1339>,"status"; + ds3231 = <&ds3231>,"status"; + mcp7940x = <&mcp7940x>,"status"; + mcp7941x = <&mcp7941x>,"status"; + pcf2127 = <&pcf2127>,"status"; + pcf8523 = <&pcf8523>,"status"; + pcf8563 = <&pcf8563>,"status"; + trickle-diode-type = <&abx80x>,"abracon,tc-diode"; + trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0", + <&abx80x>,"abracon,tc-resistor"; + wakeup-source = <&ds1339>,"wakeup-source?", + <&ds3231>,"wakeup-source?", + <&mcp7940x>,"wakeup-source?", + <&mcp7941x>,"wakeup-source?"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts b/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..31bda8da4cb6a56bfe493a81b918900995fb0589 --- /dev/null +++ b/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts @@ -0,0 +1,41 @@ +// Definitions for I2C based sensors using the Industrial IO interface. +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2c_arm>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + bmp085: bmp085@77 { + compatible = "bosch,bmp085"; + reg = <0x77>; + default-oversampling = <3>; + status = "disable"; + }; + + bmp280: bmp280@76 { + compatible = "bosch,bmp280"; + reg = <0x76>; + status = "disable"; + }; + + si7020: si7020@40 { + compatible = "si7020"; + reg = <0x40>; + status = "disable"; + }; + }; + }; + + __overrides__ { + bmp085 = <&bmp085>,"status"; + bmp280 = <&bmp280>,"status"; + si7020 = <&si7020>,"status"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/i2c0-bcm2708-overlay.dts b/arch/arm/boot/dts/overlays/i2c0-bcm2708-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..1f4fc7b570604a50ff6d3f6d676c3c4642d66b17 --- /dev/null +++ b/arch/arm/boot/dts/overlays/i2c0-bcm2708-overlay.dts @@ -0,0 +1,61 @@ +/* + * Device tree overlay for i2c_bcm2708, i2c0 bus + * + * Compile: + * dtc -@ -I dts -O dtb -o i2c0-bcm2708-overlay.dtb i2c0-bcm2708-overlay.dts + */ + +/dts-v1/; +/plugin/; + +/{ + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2c0>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&i2c0_pins>; + frag1: __overlay__ { + brcm,pins = <0 1>; + brcm,function = <4>; /* alt0 */ + }; + }; + + fragment@2 { + target = <&i2c0_pins>; + __dormant__ { + brcm,pins = <28 29>; + brcm,function = <4>; /* alt0 */ + }; + }; + + fragment@3 { + target = <&i2c0_pins>; + __dormant__ { + brcm,pins = <44 45>; + brcm,function = <5>; /* alt1 */ + }; + }; + + fragment@4 { + target = <&i2c0_pins>; + __dormant__ { + brcm,pins = <46 47>; + brcm,function = <4>; /* alt0 */ + }; + }; + + __overrides__ { + sda0_pin = <&frag1>,"brcm,pins:0"; + scl0_pin = <&frag1>,"brcm,pins:4"; + pins_0_1 = <0>,"+1-2-3-4"; + pins_28_29 = <0>,"-1+2-3-4"; + pins_44_45 = <0>,"-1-2+3-4"; + pins_46_47 = <0>,"-1-2-3+4"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/i2c1-bcm2708-overlay.dts b/arch/arm/boot/dts/overlays/i2c1-bcm2708-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..e303b9c61c82a28eab7b48f6b085661574d5a849 --- /dev/null +++ b/arch/arm/boot/dts/overlays/i2c1-bcm2708-overlay.dts @@ -0,0 +1,37 @@ +/* + * Device tree overlay for i2c_bcm2708, i2c1 bus + * + * Compile: + * dtc -@ -I dts -O dtb -o i2c1-bcm2708-overlay.dtb i2c1-bcm2708-overlay.dts + */ + +/dts-v1/; +/plugin/; + +/{ + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2c1>; + __overlay__ { + pinctrl-0 = <&i2c1_pins>; + status = "okay"; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + i2c1_pins: i2c1 { + brcm,pins = <2 3>; + brcm,function = <4>; /* alt0 */ + }; + }; + }; + + __overrides__ { + sda1_pin = <&i2c1_pins>,"brcm,pins:0"; + scl1_pin = <&i2c1_pins>,"brcm,pins:4"; + pin_func = <&i2c1_pins>,"brcm,function:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/i2s-gpio28-31-overlay.dts b/arch/arm/boot/dts/overlays/i2s-gpio28-31-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..30c356d6070cc3b1dfd1d5a07dc1021339bf5bd2 --- /dev/null +++ b/arch/arm/boot/dts/overlays/i2s-gpio28-31-overlay.dts @@ -0,0 +1,18 @@ +/* + * Device tree overlay to move i2s to gpio 28 to 31 on CM + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2836", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&i2s_pins>; + __overlay__ { + brcm,pins = <28 29 30 31>; + brcm,function = <6>; /* alt2 */ + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/iqaudio-dac-overlay.dts b/arch/arm/boot/dts/overlays/iqaudio-dac-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..f16586f05971f69b928200d212015982e388ce96 --- /dev/null +++ b/arch/arm/boot/dts/overlays/iqaudio-dac-overlay.dts @@ -0,0 +1,46 @@ +// Definitions for IQaudIO DAC +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + pcm5122@4c { + #sound-dai-cells = <0>; + compatible = "ti,pcm5122"; + reg = <0x4c>; + AVDD-supply = <&vdd_3v3_reg>; + DVDD-supply = <&vdd_3v3_reg>; + CPVDD-supply = <&vdd_3v3_reg>; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&sound>; + frag2: __overlay__ { + compatible = "iqaudio,iqaudio-dac"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; + + __overrides__ { + 24db_digital_gain = <&frag2>,"iqaudio,24db_digital_gain?"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/iqaudio-dacplus-overlay.dts b/arch/arm/boot/dts/overlays/iqaudio-dacplus-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..4dcf17515f95589addd5194cf825be813d1e0c98 --- /dev/null +++ b/arch/arm/boot/dts/overlays/iqaudio-dacplus-overlay.dts @@ -0,0 +1,49 @@ +// Definitions for IQaudIO DAC+ +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + pcm5122@4c { + #sound-dai-cells = <0>; + compatible = "ti,pcm5122"; + reg = <0x4c>; + AVDD-supply = <&vdd_3v3_reg>; + DVDD-supply = <&vdd_3v3_reg>; + CPVDD-supply = <&vdd_3v3_reg>; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&sound>; + iqaudio_dac: __overlay__ { + compatible = "iqaudio,iqaudio-dac"; + i2s-controller = <&i2s>; + mute-gpios = <&gpio 22 0>; + status = "okay"; + }; + }; + + __overrides__ { + 24db_digital_gain = <&iqaudio_dac>,"iqaudio,24db_digital_gain?"; + auto_mute_amp = <&iqaudio_dac>,"iqaudio-dac,auto-mute-amp?"; + unmute_amp = <&iqaudio_dac>,"iqaudio-dac,unmute-amp?"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/iqaudio-digi-wm8804-audio-overlay.dts b/arch/arm/boot/dts/overlays/iqaudio-digi-wm8804-audio-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..b86e1e5edc89fb78fd1ab8482bfff6c7ec4ec9f5 --- /dev/null +++ b/arch/arm/boot/dts/overlays/iqaudio-digi-wm8804-audio-overlay.dts @@ -0,0 +1,47 @@ +// Definitions for IQAudIO Digi WM8804 audio board +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + wm8804@3b { + #sound-dai-cells = <0>; + compatible = "wlf,wm8804"; + reg = <0x3b>; + status = "okay"; + DVDD-supply = <&vdd_3v3_reg>; + PVDD-supply = <&vdd_3v3_reg>; + }; + }; + }; + + fragment@2 { + target = <&sound>; + wm8804_digi: __overlay__ { + compatible = "iqaudio,wm8804-digi"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; + + __overrides__ { + card_name = <&wm8804_digi>,"wm8804-digi,card-name"; + dai_name = <&wm8804_digi>,"wm8804-digi,dai-name"; + dai_stream_name = <&wm8804_digi>,"wm8804-digi,dai-stream-name"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/justboom-dac-overlay.dts b/arch/arm/boot/dts/overlays/justboom-dac-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..2b8dba0c231b20ac7660152356a06abeacc83c2d --- /dev/null +++ b/arch/arm/boot/dts/overlays/justboom-dac-overlay.dts @@ -0,0 +1,46 @@ +// Definitions for JustBoom DAC +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + pcm5122@4d { + #sound-dai-cells = <0>; + compatible = "ti,pcm5122"; + reg = <0x4d>; + AVDD-supply = <&vdd_3v3_reg>; + DVDD-supply = <&vdd_3v3_reg>; + CPVDD-supply = <&vdd_3v3_reg>; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&sound>; + frag2: __overlay__ { + compatible = "justboom,justboom-dac"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; + + __overrides__ { + 24db_digital_gain = <&frag2>,"justboom,24db_digital_gain?"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/justboom-digi-overlay.dts b/arch/arm/boot/dts/overlays/justboom-digi-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..1212e3ff591b6071604ee4a519c89ec50ac95d00 --- /dev/null +++ b/arch/arm/boot/dts/overlays/justboom-digi-overlay.dts @@ -0,0 +1,41 @@ +// Definitions for JustBoom Digi +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + wm8804@3b { + #sound-dai-cells = <0>; + compatible = "wlf,wm8804"; + reg = <0x3b>; + PVDD-supply = <&vdd_3v3_reg>; + DVDD-supply = <&vdd_3v3_reg>; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&sound>; + __overlay__ { + compatible = "justboom,justboom-digi"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/lirc-rpi-overlay.dts b/arch/arm/boot/dts/overlays/lirc-rpi-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..7d5d82bdf4c41cfbafada51a6d23cbd57822828f --- /dev/null +++ b/arch/arm/boot/dts/overlays/lirc-rpi-overlay.dts @@ -0,0 +1,57 @@ +// Definitions for lirc-rpi module +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target-path = "/"; + __overlay__ { + lirc_rpi: lirc_rpi { + compatible = "rpi,lirc-rpi"; + pinctrl-names = "default"; + pinctrl-0 = <&lirc_pins>; + status = "okay"; + + // Override autodetection of IR receiver circuit + // (0 = active high, 1 = active low, -1 = no override ) + rpi,sense = <0xffffffff>; + + // Software carrier + // (0 = off, 1 = on) + rpi,softcarrier = <1>; + + // Invert output + // (0 = off, 1 = on) + rpi,invert = <0>; + + // Enable debugging messages + // (0 = off, 1 = on) + rpi,debug = <0>; + }; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + lirc_pins: lirc_pins { + brcm,pins = <17 18>; + brcm,function = <1 0>; // out in + brcm,pull = <0 1>; // off down + }; + }; + }; + + __overrides__ { + gpio_out_pin = <&lirc_pins>,"brcm,pins:0"; + gpio_in_pin = <&lirc_pins>,"brcm,pins:4"; + gpio_in_pull = <&lirc_pins>,"brcm,pull:4"; + + sense = <&lirc_rpi>,"rpi,sense:0"; + softcarrier = <&lirc_rpi>,"rpi,softcarrier:0"; + invert = <&lirc_rpi>,"rpi,invert:0"; + debug = <&lirc_rpi>,"rpi,debug:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/mcp23017-overlay.dts b/arch/arm/boot/dts/overlays/mcp23017-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..412f966a3cc0a312771b7182310a7045fb923224 --- /dev/null +++ b/arch/arm/boot/dts/overlays/mcp23017-overlay.dts @@ -0,0 +1,54 @@ +// Definitions for MCP23017 Gpio Extender from Microchip Semiconductor + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&i2c1>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + mcp23017_pins: mcp23017_pins { + brcm,pins = <4>; + brcm,function = <0>; + }; + }; + }; + + fragment@2 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + + mcp23017: mcp@20 { + compatible = "microchip,mcp23017"; + reg = <0x20>; + gpio-controller; + #gpio-cells = <2>; + #interrupt-cells=<2>; + interrupt-parent = <&gpio>; + interrupts = <4 2>; + interrupt-controller; + microchip,irq-mirror; + + status = "okay"; + }; + }; + }; + + __overrides__ { + gpiopin = <&mcp23017_pins>,"brcm,pins:0", + <&mcp23017>,"interrupts:0"; + addr = <&mcp23017>,"reg:0"; + }; +}; + diff --git a/arch/arm/boot/dts/overlays/mcp23s17-overlay.dts b/arch/arm/boot/dts/overlays/mcp23s17-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..7dcbacb3cd007eb15b2b0f165fd8adc7a7b7c580 --- /dev/null +++ b/arch/arm/boot/dts/overlays/mcp23s17-overlay.dts @@ -0,0 +1,732 @@ +// Overlay for MCP23S08/17 GPIO Extenders from Microchip Semiconductor + +// dtparams: +// s08-spi--present - 4-bit integer, bitmap indicating MCP23S08 devices present on SPI, CS#. +// s17-spi--present - 8-bit integer, bitmap indicating MCP23S17 devices present on SPI, CS#. +// s08-spi--int-gpio - integer, enables interrupts on a single MCP23S08 device on SPI, CS#, specifies the GPIO pin to which INT output is connected. +// s17-spi--int-gpio - integer, enables mirrored interrupts on a single MCP23S17 device on SPI, CS#, specifies the GPIO pin to which either INTA or INTB output is connected. +// +// If devices are present on SPI1 or SPI2, those interfaces must be enabled with one of the spi1-1/2/3cs and/or spi2-1/2/3cs overlays. +// If interrupts are enabled for a device on a given CS# on a SPI bus, that device must be the only one present on that SPI bus/CS#. +// +// Example 1: A single MCP23S17 device on SPI0, CS#0 with its SPI addr set to 0 and INTA output connected to GPIO25: +// dtoverlay=mcp23s17:s17-spi0-0-present=1,s17-spi0-0-int-gpio=25 +// +// Example 2: Two MCP23S08 devices on SPI1, CS#0 with their addrs set to 2 and 3. Three MCP23S17 devices on SPI1, CS#1 with their addrs set to 0, 1 and 7: +// dtoverlay=spi1-2cs +// dtoverlay=mcp23s17:s08-spi1-0-present=12,s17-spi1-1-present=131 + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + // disable spi-dev on spi0.0 + fragment@0 { + target = <&spidev0>; + __dormant__ { + status = "disabled"; + }; + }; + + // disable spi-dev on spi0.1 + fragment@1 { + target = <&spidev1>; + __dormant__ { + status = "disabled"; + }; + }; + + // disable spi-dev on spi1.0 + fragment@2 { + target-path = "spi1/spidev@0"; + __dormant__ { + status = "disabled"; + }; + }; + + // disable spi-dev on spi1.1 + fragment@3 { + target-path = "spi1/spidev@1"; + __dormant__ { + status = "disabled"; + }; + }; + + // disable spi-dev on spi1.2 + fragment@4 { + target-path = "spi1/spidev@2"; + __dormant__ { + status = "disabled"; + }; + }; + + // disable spi-dev on spi2.0 + fragment@5 { + target-path = "spi2/spidev@0"; + __dormant__ { + status = "disabled"; + }; + }; + + // disable spi-dev on spi2.1 + fragment@6 { + target-path = "spi2/spidev@1"; + __dormant__ { + status = "disabled"; + }; + }; + + // disable spi-dev on spi2.2 + fragment@7 { + target-path = "spi2/spidev@2"; + __dormant__ { + status = "disabled"; + }; + }; + + // enable one or more mcp23s08s on spi0.0 + fragment@8 { + target = <&spi0>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + mcp23s08_00: mcp23s08@0 { + compatible = "microchip,mcp23s08"; + gpio-controller; + #gpio-cells = <2>; + microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s08-spi0-0-present parameter */ + reg = <0>; + spi-max-frequency = <500000>; + status = "okay"; + #interrupt-cells=<2>; + interrupts = <0 2>; /* 1st word overwritten by mcp23s08-spi0-0-int-gpio parameter */ + }; + }; + }; + + // enable one or more mcp23s08s on spi0.1 + fragment@9 { + target = <&spi0>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + mcp23s08_01: mcp23s08@1 { + compatible = "microchip,mcp23s08"; + gpio-controller; + #gpio-cells = <2>; + microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s08-spi0-1-present parameter */ + reg = <1>; + spi-max-frequency = <500000>; + status = "okay"; + #interrupt-cells=<2>; + interrupts = <0 2>; /* 1st word overwritten by mcp23s08-spi0-1-int-gpio parameter */ + }; + }; + }; + + // enable one or more mcp23s08s on spi1.0 + fragment@10 { + target = <&spi1>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + mcp23s08_10: mcp23s08@0 { + compatible = "microchip,mcp23s08"; + gpio-controller; + #gpio-cells = <2>; + microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s08-spi1-0-present parameter */ + reg = <0>; + spi-max-frequency = <500000>; + status = "okay"; + #interrupt-cells=<2>; + interrupts = <0 2>; /* 1st word overwritten by mcp23s08-spi1-0-int-gpio parameter */ + }; + }; + }; + + // enable one or more mcp23s08s on spi1.1 + fragment@11 { + target = <&spi1>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + mcp23s08_11: mcp23s08@1 { + compatible = "microchip,mcp23s08"; + gpio-controller; + #gpio-cells = <2>; + microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s08-spi1-1-present parameter */ + reg = <1>; + spi-max-frequency = <500000>; + status = "okay"; + #interrupt-cells=<2>; + interrupts = <0 2>; /* 1st word overwritten by mcp23s08-spi1-1-int-gpio parameter */ + }; + }; + }; + + // enable one or more mcp23s08s on spi1.2 + fragment@12 { + target = <&spi1>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + mcp23s08_12: mcp23s08@2 { + compatible = "microchip,mcp23s08"; + gpio-controller; + #gpio-cells = <2>; + microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s08-spi1-2-present parameter */ + reg = <2>; + spi-max-frequency = <500000>; + status = "okay"; + #interrupt-cells=<2>; + interrupts = <0 2>; /* 1st word overwritten by mcp23s08-spi1-2-int-gpio parameter */ + }; + }; + }; + + // enable one or more mcp23s08s on spi2.0 + fragment@13 { + target = <&spi2>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + mcp23s08_20: mcp23s08@0 { + compatible = "microchip,mcp23s08"; + gpio-controller; + #gpio-cells = <2>; + microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s08-spi2-0-present parameter */ + reg = <0>; + spi-max-frequency = <500000>; + status = "okay"; + #interrupt-cells=<2>; + interrupts = <0 2>; /* 1st word overwritten by mcp23s08-spi2-0-int-gpio parameter */ + }; + }; + }; + + // enable one or more mcp23s08s on spi2.1 + fragment@14 { + target = <&spi2>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + mcp23s08_21: mcp23s08@1 { + compatible = "microchip,mcp23s08"; + gpio-controller; + #gpio-cells = <2>; + microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s08-spi2-1-present parameter */ + reg = <1>; + spi-max-frequency = <500000>; + status = "okay"; + #interrupt-cells=<2>; + interrupts = <0 2>; /* 1st word overwritten by mcp23s08-spi2-1-int-gpio parameter */ + }; + }; + }; + + // enable one or more mcp23s08s on spi2.2 + fragment@15 { + target = <&spi2>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + mcp23s08_22: mcp23s08@2 { + compatible = "microchip,mcp23s08"; + gpio-controller; + #gpio-cells = <2>; + microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s08-spi2-2-present parameter */ + reg = <2>; + spi-max-frequency = <500000>; + status = "okay"; + #interrupt-cells=<2>; + interrupts = <0 2>; /* 1st word overwritten by mcp23s08-spi2-2-int-gpio parameter */ + }; + }; + }; + + // enable one or more mcp23s17s on spi0.0 + fragment@16 { + target = <&spi0>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + mcp23s17_00: mcp23s17@0 { + compatible = "microchip,mcp23s17"; + gpio-controller; + #gpio-cells = <2>; + microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s17-spi0-0-present parameter */ + reg = <0>; + spi-max-frequency = <500000>; + status = "okay"; + #interrupt-cells=<2>; + interrupts = <0 2>; /* 1st word overwritten by mcp23s17-spi0-0-int-gpio parameter */ + }; + }; + }; + + // enable one or more mcp23s17s on spi0.1 + fragment@17 { + target = <&spi0>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + mcp23s17_01: mcp23s17@1 { + compatible = "microchip,mcp23s17"; + gpio-controller; + #gpio-cells = <2>; + microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s17-spi0-1-present parameter */ + reg = <1>; + spi-max-frequency = <500000>; + status = "okay"; + #interrupt-cells=<2>; + interrupts = <0 2>; /* 1st word overwritten by mcp23s17-spi0-1-int-gpio parameter */ + }; + }; + }; + + // enable one or more mcp23s17s on spi1.0 + fragment@18 { + target = <&spi1>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + mcp23s17_10: mcp23s17@0 { + compatible = "microchip,mcp23s17"; + gpio-controller; + #gpio-cells = <2>; + microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s17-spi1-0-present parameter */ + reg = <0>; + spi-max-frequency = <500000>; + status = "okay"; + #interrupt-cells=<2>; + interrupts = <0 2>; /* 1st word overwritten by mcp23s17-spi1-0-int-gpio parameter */ + }; + }; + }; + + // enable one or more mcp23s17s on spi1.1 + fragment@19 { + target = <&spi1>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + mcp23s17_11: mcp23s17@1 { + compatible = "microchip,mcp23s17"; + gpio-controller; + #gpio-cells = <2>; + microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s17-spi1-1-present parameter */ + reg = <1>; + spi-max-frequency = <500000>; + status = "okay"; + #interrupt-cells=<2>; + interrupts = <0 2>; /* 1st word overwritten by mcp23s17-spi1-1-int-gpio parameter */ + }; + }; + }; + + // enable one or more mcp23s17s on spi1.2 + fragment@20 { + target = <&spi1>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + mcp23s17_12: mcp23s17@2 { + compatible = "microchip,mcp23s17"; + gpio-controller; + #gpio-cells = <2>; + microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s17-spi1-2-present parameter */ + reg = <2>; + spi-max-frequency = <500000>; + status = "okay"; + #interrupt-cells=<2>; + interrupts = <0 2>; /* 1st word overwritten by mcp23s17-spi1-2-int-gpio parameter */ + }; + }; + }; + + // enable one or more mcp23s17s on spi2.0 + fragment@21 { + target = <&spi2>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + mcp23s17_20: mcp23s17@0 { + compatible = "microchip,mcp23s17"; + gpio-controller; + #gpio-cells = <2>; + microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s17-spi2-0-present parameter */ + reg = <0>; + spi-max-frequency = <500000>; + status = "okay"; + #interrupt-cells=<2>; + interrupts = <0 2>; /* 1st word overwritten by mcp23s17-spi2-0-int-gpio parameter */ + }; + }; + }; + + // enable one or more mcp23s17s on spi2.1 + fragment@22 { + target = <&spi2>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + mcp23s17_21: mcp23s17@1 { + compatible = "microchip,mcp23s17"; + gpio-controller; + #gpio-cells = <2>; + microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s17-spi2-1-present parameter */ + reg = <1>; + spi-max-frequency = <500000>; + status = "okay"; + #interrupt-cells=<2>; + interrupts = <0 2>; /* 1st word overwritten by mcp23s17-spi2-1-int-gpio parameter */ + }; + }; + }; + + // enable one or more mcp23s17s on spi2.2 + fragment@23 { + target = <&spi2>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + mcp23s17_22: mcp23s17@2 { + compatible = "microchip,mcp23s17"; + gpio-controller; + #gpio-cells = <2>; + microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s17-spi2-2-present parameter */ + reg = <2>; + spi-max-frequency = <500000>; + status = "okay"; + #interrupt-cells=<2>; + interrupts = <0 2>; /* 1st word overwritten by mcp23s17-spi2-2-int-gpio parameter */ + }; + }; + }; + + // Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi0.0 as a input with no pull-up/down + fragment@24 { + target = <&gpio>; + __dormant__ { + spi0_0_int_pins: spi0_0_int_pins { + brcm,pins = <0>; /* overwritten by mcp23s08/17-spi0-0-int-gpio parameter */ + brcm,function = <0>; + brcm,pull = <0>; + }; + }; + }; + + // Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi0.1 as a input with no pull-up/down + fragment@25 { + target = <&gpio>; + __dormant__ { + spi0_1_int_pins: spi0_1_int_pins { + brcm,pins = <0>; /* overwritten by mcp23s08/17-spi0-1-int-gpio parameter */ + brcm,function = <0>; + brcm,pull = <0>; + }; + }; + }; + + // Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi1.0 as a input with no pull-up/down + fragment@26 { + target = <&gpio>; + __dormant__ { + spi1_0_int_pins: spi1_0_int_pins { + brcm,pins = <0>; /* overwritten by mcp23s08/17-spi1-0-int-gpio parameter */ + brcm,function = <0>; + brcm,pull = <0>; + }; + }; + }; + + // Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi1.1 as a input with no pull-up/down + fragment@27 { + target = <&gpio>; + __dormant__ { + spi1_1_int_pins: spi1_1_int_pins { + brcm,pins = <0>; /* overwritten by mcp23s08/17-spi1-1-int-gpio parameter */ + brcm,function = <0>; + brcm,pull = <0>; + }; + }; + }; + + // Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi1.2 as a input with no pull-up/down + fragment@28 { + target = <&gpio>; + __dormant__ { + spi1_2_int_pins: spi1_2_int_pins { + brcm,pins = <0>; /* overwritten by mcp23s08/17-spi1-2-int-gpio parameter */ + brcm,function = <0>; + brcm,pull = <0>; + }; + }; + }; + + // Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi2.0 as a input with no pull-up/down + fragment@29 { + target = <&gpio>; + __dormant__ { + spi2_0_int_pins: spi2_0_int_pins { + brcm,pins = <0>; /* overwritten by mcp23s08/17-spi2-0-int-gpio parameter */ + brcm,function = <0>; + brcm,pull = <0>; + }; + }; + }; + + // Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi2.1 as a input with no pull-up/down + fragment@30 { + target = <&gpio>; + __dormant__ { + spi2_1_int_pins: spi2_1_int_pins { + brcm,pins = <0>; /* overwritten by mcp23s08/17-spi2-1-int-gpio parameter */ + brcm,function = <0>; + brcm,pull = <0>; + }; + }; + }; + + // Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi2.2 as a input with no pull-up/down + fragment@31 { + target = <&gpio>; + __dormant__ { + spi2_2_int_pins: spi2_2_int_pins { + brcm,pins = <0>; /* overwritten by mcp23s08/17-spi2-2-int-gpio parameter */ + brcm,function = <0>; + brcm,pull = <0>; + }; + }; + }; + + // Enable interrupts for a mcp23s08 on spi0.0. + // Use default active low interrupt signalling. + fragment@32 { + target = <&mcp23s08_00>; + __dormant__ { + interrupt-parent = <&gpio>; + interrupt-controller; + }; + }; + + // Enable interrupts for a mcp23s08 on spi0.1. + // Use default active low interrupt signalling. + fragment@33 { + target = <&mcp23s08_01>; + __dormant__ { + interrupt-parent = <&gpio>; + interrupt-controller; + }; + }; + + // Enable interrupts for a mcp23s08 on spi1.0. + // Use default active low interrupt signalling. + fragment@34 { + target = <&mcp23s08_10>; + __dormant__ { + interrupt-parent = <&gpio>; + interrupt-controller; + }; + }; + + // Enable interrupts for a mcp23s08 on spi1.1. + // Use default active low interrupt signalling. + fragment@35 { + target = <&mcp23s08_11>; + __dormant__ { + interrupt-parent = <&gpio>; + interrupt-controller; + }; + }; + + // Enable interrupts for a mcp23s08 on spi1.2. + // Use default active low interrupt signalling. + fragment@36 { + target = <&mcp23s08_12>; + __dormant__ { + interrupt-parent = <&gpio>; + interrupt-controller; + }; + }; + + // Enable interrupts for a mcp23s08 on spi2.0. + // Use default active low interrupt signalling. + fragment@37 { + target = <&mcp23s08_20>; + __dormant__ { + interrupt-parent = <&gpio>; + interrupt-controller; + }; + }; + + // Enable interrupts for a mcp23s08 on spi2.1. + // Use default active low interrupt signalling. + fragment@38 { + target = <&mcp23s08_21>; + __dormant__ { + interrupt-parent = <&gpio>; + interrupt-controller; + }; + }; + + // Enable interrupts for a mcp23s08 on spi2.2. + // Use default active low interrupt signalling. + fragment@39 { + target = <&mcp23s08_22>; + __dormant__ { + interrupt-parent = <&gpio>; + interrupt-controller; + }; + }; + + // Enable interrupts for a mcp23s17 on spi0.0. + // Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin. + // Use default active low interrupt signalling. + fragment@40 { + target = <&mcp23s17_00>; + __dormant__ { + interrupt-parent = <&gpio>; + interrupt-controller; + microchip,irq-mirror; + }; + }; + + // Enable interrupts for a mcp23s17 on spi0.1. + // Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin. + // Configure INTA/B outputs of mcp23s08/17 as active low. + fragment@41 { + target = <&mcp23s17_01>; + __dormant__ { + interrupt-parent = <&gpio>; + interrupt-controller; + microchip,irq-mirror; + }; + }; + + // Enable interrupts for a mcp23s17 on spi1.0. + // Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin. + // Configure INTA/B outputs of mcp23s08/17 as active low. + fragment@42 { + target = <&mcp23s17_10>; + __dormant__ { + interrupt-parent = <&gpio>; + interrupt-controller; + microchip,irq-mirror; + }; + }; + + // Enable interrupts for a mcp23s17 on spi1.1. + // Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin. + // Configure INTA/B outputs of mcp23s08/17 as active low. + fragment@43 { + target = <&mcp23s17_11>; + __dormant__ { + interrupt-parent = <&gpio>; + interrupt-controller; + microchip,irq-mirror; + }; + }; + + // Enable interrupts for a mcp23s17 on spi1.2. + // Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin. + // Configure INTA/B outputs of mcp23s08/17 as active low. + fragment@44 { + target = <&mcp23s17_12>; + __dormant__ { + interrupt-parent = <&gpio>; + interrupt-controller; + microchip,irq-mirror; + }; + }; + + // Enable interrupts for a mcp23s17 on spi2.0. + // Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin. + // Configure INTA/B outputs of mcp23s08/17 as active low. + fragment@45 { + target = <&mcp23s17_20>; + __dormant__ { + interrupt-parent = <&gpio>; + interrupt-controller; + microchip,irq-mirror; + }; + }; + + // Enable interrupts for a mcp23s17 on spi2.1. + // Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin. + // Configure INTA/B outputs of mcp23s08/17 as active low. + fragment@46 { + target = <&mcp23s17_21>; + __dormant__ { + interrupt-parent = <&gpio>; + interrupt-controller; + microchip,irq-mirror; + }; + }; + + // Enable interrupts for a mcp23s17 on spi2.2. + // Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin. + // Configure INTA/B outputs of mcp23s08/17 as active low. + fragment@47 { + target = <&mcp23s17_22>; + __dormant__ { + interrupt-parent = <&gpio>; + interrupt-controller; + microchip,irq-mirror; + }; + }; + + __overrides__ { + s08-spi0-0-present = <0>,"+0+8", <&mcp23s08_00>,"microchip,spi-present-mask:0"; + s08-spi0-1-present = <0>,"+1+9", <&mcp23s08_01>,"microchip,spi-present-mask:0"; + s08-spi1-0-present = <0>,"+2+10", <&mcp23s08_10>,"microchip,spi-present-mask:0"; + s08-spi1-1-present = <0>,"+3+11", <&mcp23s08_11>,"microchip,spi-present-mask:0"; + s08-spi1-2-present = <0>,"+4+12", <&mcp23s08_12>,"microchip,spi-present-mask:0"; + s08-spi2-0-present = <0>,"+5+13", <&mcp23s08_20>,"microchip,spi-present-mask:0"; + s08-spi2-1-present = <0>,"+6+14", <&mcp23s08_21>,"microchip,spi-present-mask:0"; + s08-spi2-2-present = <0>,"+7+15", <&mcp23s08_22>,"microchip,spi-present-mask:0"; + s17-spi0-0-present = <0>,"+0+16", <&mcp23s17_00>,"microchip,spi-present-mask:0"; + s17-spi0-1-present = <0>,"+1+17", <&mcp23s17_01>,"microchip,spi-present-mask:0"; + s17-spi1-0-present = <0>,"+2+18", <&mcp23s17_10>,"microchip,spi-present-mask:0"; + s17-spi1-1-present = <0>,"+3+19", <&mcp23s17_11>,"microchip,spi-present-mask:0"; + s17-spi1-2-present = <0>,"+4+20", <&mcp23s17_12>,"microchip,spi-present-mask:0"; + s17-spi2-0-present = <0>,"+5+21", <&mcp23s17_20>,"microchip,spi-present-mask:0"; + s17-spi2-1-present = <0>,"+6+22", <&mcp23s17_21>,"microchip,spi-present-mask:0"; + s17-spi2-2-present = <0>,"+7+23", <&mcp23s17_22>,"microchip,spi-present-mask:0"; + s08-spi0-0-int-gpio = <0>,"+24+32", <&spi0_0_int_pins>,"brcm,pins:0", <&mcp23s08_00>,"interrupts:0"; + s08-spi0-1-int-gpio = <0>,"+25+33", <&spi0_1_int_pins>,"brcm,pins:0", <&mcp23s08_01>,"interrupts:0"; + s08-spi1-0-int-gpio = <0>,"+26+34", <&spi1_0_int_pins>,"brcm,pins:0", <&mcp23s08_10>,"interrupts:0"; + s08-spi1-1-int-gpio = <0>,"+27+35", <&spi1_1_int_pins>,"brcm,pins:0", <&mcp23s08_11>,"interrupts:0"; + s08-spi1-2-int-gpio = <0>,"+28+36", <&spi1_2_int_pins>,"brcm,pins:0", <&mcp23s08_12>,"interrupts:0"; + s08-spi2-0-int-gpio = <0>,"+29+37", <&spi2_0_int_pins>,"brcm,pins:0", <&mcp23s08_20>,"interrupts:0"; + s08-spi2-1-int-gpio = <0>,"+30+38", <&spi2_1_int_pins>,"brcm,pins:0", <&mcp23s08_21>,"interrupts:0"; + s08-spi2-2-int-gpio = <0>,"+31+39", <&spi2_2_int_pins>,"brcm,pins:0", <&mcp23s08_22>,"interrupts:0"; + s17-spi0-0-int-gpio = <0>,"+24+40", <&spi0_0_int_pins>,"brcm,pins:0", <&mcp23s17_00>,"interrupts:0"; + s17-spi0-1-int-gpio = <0>,"+25+41", <&spi0_1_int_pins>,"brcm,pins:0", <&mcp23s17_01>,"interrupts:0"; + s17-spi1-0-int-gpio = <0>,"+26+42", <&spi1_0_int_pins>,"brcm,pins:0", <&mcp23s17_10>,"interrupts:0"; + s17-spi1-1-int-gpio = <0>,"+27+43", <&spi1_1_int_pins>,"brcm,pins:0", <&mcp23s17_11>,"interrupts:0"; + s17-spi1-2-int-gpio = <0>,"+28+44", <&spi1_2_int_pins>,"brcm,pins:0", <&mcp23s17_12>,"interrupts:0"; + s17-spi2-0-int-gpio = <0>,"+29+45", <&spi2_0_int_pins>,"brcm,pins:0", <&mcp23s17_20>,"interrupts:0"; + s17-spi2-1-int-gpio = <0>,"+30+46", <&spi2_1_int_pins>,"brcm,pins:0", <&mcp23s17_21>,"interrupts:0"; + s17-spi2-2-int-gpio = <0>,"+31+47", <&spi2_2_int_pins>,"brcm,pins:0", <&mcp23s17_22>,"interrupts:0"; + }; +}; + diff --git a/arch/arm/boot/dts/overlays/mcp2515-can0-overlay.dts b/arch/arm/boot/dts/overlays/mcp2515-can0-overlay.dts new file mode 100755 index 0000000000000000000000000000000000000000..c96cdae27fb15055c4a6ec55d1ee45644768c392 --- /dev/null +++ b/arch/arm/boot/dts/overlays/mcp2515-can0-overlay.dts @@ -0,0 +1,73 @@ +/* + * Device tree overlay for mcp251x/can0 on spi0.0 + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2836", "brcm,bcm2708", "brcm,bcm2709"; + /* disable spi-dev for spi0.0 */ + fragment@0 { + target = <&spi0>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&spidev0>; + __overlay__ { + status = "disabled"; + }; + }; + + /* the interrupt pin of the can-controller */ + fragment@2 { + target = <&gpio>; + __overlay__ { + can0_pins: can0_pins { + brcm,pins = <25>; + brcm,function = <0>; /* input */ + }; + }; + }; + + /* the clock/oscillator of the can-controller */ + fragment@3 { + target-path = "/clocks"; + __overlay__ { + /* external oscillator of mcp2515 on SPI0.0 */ + can0_osc: can0_osc { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <16000000>; + }; + }; + }; + + /* the spi config of the can-controller itself binding everything together */ + fragment@4 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + can0: mcp2515@0 { + reg = <0>; + compatible = "microchip,mcp2515"; + pinctrl-names = "default"; + pinctrl-0 = <&can0_pins>; + spi-max-frequency = <10000000>; + interrupt-parent = <&gpio>; + interrupts = <25 0x2>; + clocks = <&can0_osc>; + }; + }; + }; + __overrides__ { + oscillator = <&can0_osc>,"clock-frequency:0"; + spimaxfrequency = <&can0>,"spi-max-frequency:0"; + interrupt = <&can0_pins>,"brcm,pins:0",<&can0>,"interrupts:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/mcp2515-can1-overlay.dts b/arch/arm/boot/dts/overlays/mcp2515-can1-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..67bd0d9bdaa2ff767d284010a69ecfe3f2aa1fd1 --- /dev/null +++ b/arch/arm/boot/dts/overlays/mcp2515-can1-overlay.dts @@ -0,0 +1,73 @@ +/* + * Device tree overlay for mcp251x/can1 on spi0.1 edited by petit_miner + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2836", "brcm,bcm2708", "brcm,bcm2709"; + /* disable spi-dev for spi0.1 */ + fragment@0 { + target = <&spi0>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&spidev1>; + __overlay__ { + status = "disabled"; + }; + }; + + /* the interrupt pin of the can-controller */ + fragment@2 { + target = <&gpio>; + __overlay__ { + can1_pins: can1_pins { + brcm,pins = <25>; + brcm,function = <0>; /* input */ + }; + }; + }; + + /* the clock/oscillator of the can-controller */ + fragment@3 { + target-path = "/clocks"; + __overlay__ { + /* external oscillator of mcp2515 on spi0.1 */ + can1_osc: can1_osc { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <16000000>; + }; + }; + }; + + /* the spi config of the can-controller itself binding everything together */ + fragment@4 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + can1: mcp2515@1 { + reg = <1>; + compatible = "microchip,mcp2515"; + pinctrl-names = "default"; + pinctrl-0 = <&can1_pins>; + spi-max-frequency = <10000000>; + interrupt-parent = <&gpio>; + interrupts = <25 0x2>; + clocks = <&can1_osc>; + }; + }; + }; + __overrides__ { + oscillator = <&can1_osc>,"clock-frequency:0"; + spimaxfrequency = <&can1>,"spi-max-frequency:0"; + interrupt = <&can1_pins>,"brcm,pins:0",<&can1>,"interrupts:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/mcp3008-overlay.dts b/arch/arm/boot/dts/overlays/mcp3008-overlay.dts new file mode 100755 index 0000000000000000000000000000000000000000..06bf4264959c380d8a9f90f74e7803972d399b2a --- /dev/null +++ b/arch/arm/boot/dts/overlays/mcp3008-overlay.dts @@ -0,0 +1,205 @@ +/* + * Device tree overlay for Microchip mcp3008 10-Bit A/D Converters + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&spidev0>; + __dormant__ { + status = "disabled"; + }; + }; + + fragment@1 { + target = <&spidev1>; + __dormant__ { + status = "disabled"; + }; + }; + + fragment@2 { + target-path = "spi1/spidev@0"; + __dormant__ { + status = "disabled"; + }; + }; + + fragment@3 { + target-path = "spi1/spidev@1"; + __dormant__ { + status = "disabled"; + }; + }; + + fragment@4 { + target-path = "spi1/spidev@2"; + __dormant__ { + status = "disabled"; + }; + }; + + fragment@5 { + target-path = "spi2/spidev@0"; + __dormant__ { + status = "disabled"; + }; + }; + + fragment@6 { + target-path = "spi2/spidev@1"; + __dormant__ { + status = "disabled"; + }; + }; + + fragment@7 { + target-path = "spi2/spidev@2"; + __dormant__ { + status = "disabled"; + }; + }; + + fragment@8 { + target = <&spi0>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + + mcp3008_00: mcp3008@0 { + compatible = "mcp3008"; + reg = <0>; + spi-max-frequency = <1600000>; + }; + }; + }; + + fragment@9 { + target = <&spi0>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + + mcp3008_01: mcp3008@1 { + compatible = "mcp3008"; + reg = <1>; + spi-max-frequency = <1600000>; + }; + }; + }; + + fragment@10 { + target = <&spi1>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + + mcp3008_10: mcp3008@0 { + compatible = "mcp3008"; + reg = <0>; + spi-max-frequency = <1600000>; + }; + }; + }; + + fragment@11 { + target = <&spi1>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + + mcp3008_11: mcp3008@1 { + compatible = "mcp3008"; + reg = <1>; + spi-max-frequency = <1600000>; + }; + }; + }; + + fragment@12 { + target = <&spi1>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + + mcp3008_12: mcp3008@2 { + compatible = "mcp3008"; + reg = <2>; + spi-max-frequency = <1600000>; + }; + }; + }; + + fragment@13 { + target = <&spi2>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + + mcp3008_20: mcp3008@0 { + compatible = "mcp3008"; + reg = <0>; + spi-max-frequency = <1600000>; + }; + }; + }; + + fragment@14 { + target = <&spi2>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + + mcp3008_21: mcp3008@1 { + compatible = "mcp3008"; + reg = <1>; + spi-max-frequency = <1600000>; + }; + }; + }; + + fragment@15 { + target = <&spi2>; + __dormant__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + + mcp3008_22: mcp3008@2 { + compatible = "mcp3008"; + reg = <2>; + spi-max-frequency = <1600000>; + }; + }; + }; + + __overrides__ { + spi0-0-present = <0>, "+0+8"; + spi0-1-present = <0>, "+1+9"; + spi1-0-present = <0>, "+2+10"; + spi1-1-present = <0>, "+3+11"; + spi1-2-present = <0>, "+4+12"; + spi2-0-present = <0>, "+5+13"; + spi2-1-present = <0>, "+6+14"; + spi2-2-present = <0>, "+7+15"; + spi0-0-speed = <&mcp3008_00>, "spi-max-frequency:0"; + spi0-1-speed = <&mcp3008_01>, "spi-max-frequency:0"; + spi1-0-speed = <&mcp3008_10>, "spi-max-frequency:0"; + spi1-1-speed = <&mcp3008_11>, "spi-max-frequency:0"; + spi1-2-speed = <&mcp3008_12>, "spi-max-frequency:0"; + spi2-0-speed = <&mcp3008_20>, "spi-max-frequency:0"; + spi2-1-speed = <&mcp3008_21>, "spi-max-frequency:0"; + spi2-2-speed = <&mcp3008_22>, "spi-max-frequency:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/midi-uart0-overlay.dts b/arch/arm/boot/dts/overlays/midi-uart0-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..565af7cf79d761877be3bd06191f31aabf9e1e9b --- /dev/null +++ b/arch/arm/boot/dts/overlays/midi-uart0-overlay.dts @@ -0,0 +1,36 @@ +/dts-v1/; +/plugin/; + +#include + +/* + * Fake a higher clock rate to get a larger divisor, and thereby a lower + * baudrate. The real clock is 48MHz, which we scale so that requesting + * 38.4kHz results in an actual 31.25kHz. + * + * 48000000*38400/31250 = 58982400 + */ + +/{ + compatible = "brcm,bcm2835"; + + fragment@0 { + target-path = "/clocks"; + __overlay__ { + midi_clk: midi_clk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-output-names = "uart0_pclk"; + clock-frequency = <58982400>; + }; + }; + }; + + fragment@1 { + target = <&uart0>; + __overlay__ { + clocks = <&midi_clk>, + <&clocks BCM2835_CLOCK_VPU>; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/mmc-overlay.dts b/arch/arm/boot/dts/overlays/mmc-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..d32b02ca01ced5ab3de00d66d5412c8fda4bc510 --- /dev/null +++ b/arch/arm/boot/dts/overlays/mmc-overlay.dts @@ -0,0 +1,38 @@ +/dts-v1/; +/plugin/; + +/{ + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&mmc>; + frag0: __overlay__ { + pinctrl-names = "default"; + pinctrl-0 = <&mmc_pins>; + bus-width = <4>; + brcm,overclock-50 = <0>; + status = "okay"; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + mmc_pins: mmc_pins { + brcm,pins = <48 49 50 51 52 53>; + brcm,function = <7>; /* alt3 */ + }; + }; + }; + + fragment@2 { + target = <&sdhost>; + __overlay__ { + status = "disabled"; + }; + }; + + __overrides__ { + overclock_50 = <&frag0>,"brcm,overclock-50:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/mz61581-overlay.dts b/arch/arm/boot/dts/overlays/mz61581-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..2c29aaed44c5959d7f0df2a3baf2af052b24b6b4 --- /dev/null +++ b/arch/arm/boot/dts/overlays/mz61581-overlay.dts @@ -0,0 +1,117 @@ +/* + * Device Tree overlay for MZ61581-PI-EXT 2014.12.28 by Tontec + * + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&spidev0>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@2 { + target = <&spidev1>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@3 { + target = <&gpio>; + __overlay__ { + mz61581_pins: mz61581_pins { + brcm,pins = <4 15 18 25>; + brcm,function = <0 1 1 1>; /* in out out out */ + }; + }; + }; + + fragment@4 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + mz61581: mz61581@0{ + compatible = "samsung,s6d02a1"; + reg = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&mz61581_pins>; + + spi-max-frequency = <128000000>; + spi-cpol; + spi-cpha; + + width = <320>; + height = <480>; + rotate = <270>; + bgr; + fps = <30>; + buswidth = <8>; + txbuflen = <32768>; + + reset-gpios = <&gpio 15 0>; + dc-gpios = <&gpio 25 0>; + led-gpios = <&gpio 18 0>; + + init = <0x10000b0 00 + 0x1000011 + 0x20000ff + 0x10000b3 0x02 0x00 0x00 0x00 + 0x10000c0 0x13 0x3b 0x00 0x02 0x00 0x01 0x00 0x43 + 0x10000c1 0x08 0x16 0x08 0x08 + 0x10000c4 0x11 0x07 0x03 0x03 + 0x10000c6 0x00 + 0x10000c8 0x03 0x03 0x13 0x5c 0x03 0x07 0x14 0x08 0x00 0x21 0x08 0x14 0x07 0x53 0x0c 0x13 0x03 0x03 0x21 0x00 + 0x1000035 0x00 + 0x1000036 0xa0 + 0x100003a 0x55 + 0x1000044 0x00 0x01 + 0x10000d0 0x07 0x07 0x1d 0x03 + 0x10000d1 0x03 0x30 0x10 + 0x10000d2 0x03 0x14 0x04 + 0x1000029 + 0x100002c>; + + /* This is a workaround to make sure the init sequence slows down and doesn't fail */ + debug = <3>; + }; + + mz61581_ts: mz61581_ts@1 { + compatible = "ti,ads7846"; + reg = <1>; + + spi-max-frequency = <2000000>; + interrupts = <4 2>; /* high-to-low edge triggered */ + interrupt-parent = <&gpio>; + pendown-gpio = <&gpio 4 0>; + + ti,x-plate-ohms = /bits/ 16 <60>; + ti,pressure-max = /bits/ 16 <255>; + }; + }; + }; + __overrides__ { + speed = <&mz61581>, "spi-max-frequency:0"; + rotate = <&mz61581>, "rotate:0"; + fps = <&mz61581>, "fps:0"; + txbuflen = <&mz61581>, "txbuflen:0"; + debug = <&mz61581>, "debug:0"; + xohms = <&mz61581_ts>,"ti,x-plate-ohms;0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/pi3-act-led-overlay.dts b/arch/arm/boot/dts/overlays/pi3-act-led-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..14a59dcf13ca64eb0bdbd34d70690a11abe83cfa --- /dev/null +++ b/arch/arm/boot/dts/overlays/pi3-act-led-overlay.dts @@ -0,0 +1,27 @@ +/dts-v1/; +/plugin/; + +/* Pi3 uses a GPIO expander to drive the LEDs which can only be accessed + from the VPU. There is a special driver for this with a separate DT node, + which has the unfortunate consequence of breaking the act_led_gpio and + act_led_activelow dtparams. + + This overlay changes the GPIO controller back to the standard one and + restores the dtparams. +*/ + +/{ + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&act_led>; + frag0: __overlay__ { + gpios = <&gpio 0 0>; + }; + }; + + __overrides__ { + gpio = <&frag0>,"gpios:4"; + activelow = <&frag0>,"gpios:8"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/pi3-disable-bt-overlay.dts b/arch/arm/boot/dts/overlays/pi3-disable-bt-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..87cf345f9641e62c5ed496c238333716cc5b27e6 --- /dev/null +++ b/arch/arm/boot/dts/overlays/pi3-disable-bt-overlay.dts @@ -0,0 +1,46 @@ +/dts-v1/; +/plugin/; + +/* Disable Bluetooth and restore UART0/ttyAMA0 over GPIOs 14 & 15. + To disable the systemd service that initialises the modem so it doesn't use + the UART: + + sudo systemctl disable hciuart +*/ + +/{ + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&uart1>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@1 { + target = <&uart0>; + __overlay__ { + pinctrl-names = "default"; + pinctrl-0 = <&uart0_pins>; + status = "okay"; + }; + }; + + fragment@2 { + target = <&uart0_pins>; + __overlay__ { + brcm,pins; + brcm,function; + brcm,pull; + }; + }; + + fragment@3 { + target-path = "/aliases"; + __overlay__ { + serial0 = "/soc/serial@7e201000"; + serial1 = "/soc/serial@7e215040"; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/pi3-disable-wifi-overlay.dts b/arch/arm/boot/dts/overlays/pi3-disable-wifi-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..017199554bf2f4e381efcc7bb71e750c210343e0 --- /dev/null +++ b/arch/arm/boot/dts/overlays/pi3-disable-wifi-overlay.dts @@ -0,0 +1,13 @@ +/dts-v1/; +/plugin/; + +/{ + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&mmc>; + __overlay__ { + status = "disabled"; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/pi3-miniuart-bt-overlay.dts b/arch/arm/boot/dts/overlays/pi3-miniuart-bt-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..18f77453c38dbbf33f3726a5b4cce15b9f20f390 --- /dev/null +++ b/arch/arm/boot/dts/overlays/pi3-miniuart-bt-overlay.dts @@ -0,0 +1,64 @@ +/dts-v1/; +/plugin/; + +/* Switch Pi3 Bluetooth function to use the mini-UART (ttyS0) and restore + UART0/ttyAMA0 over GPIOs 14 & 15. Note that this may reduce the maximum + usable baudrate. + + It is also necessary to edit /lib/systemd/system/hciuart.service and + replace ttyAMA0 with ttyS0, unless you have a system with udev rules + that create /dev/serial0 and /dev/serial1, in which case use /dev/serial1 + instead because it will always be correct. + + If cmdline.txt uses the alias serial0 to refer to the user-accessable port + then the firmware will replace with the appropriate port whether or not + this overlay is used. +*/ + +/{ + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&uart0>; + __overlay__ { + pinctrl-names = "default"; + pinctrl-0 = <&uart0_pins>; + status = "okay"; + }; + }; + + fragment@1 { + target = <&uart1>; + __overlay__ { + pinctrl-names = "default"; + pinctrl-0 = <&uart1_pins &bt_pins>; + status = "okay"; + }; + }; + + fragment@2 { + target = <&uart0_pins>; + __overlay__ { + brcm,pins; + brcm,function; + brcm,pull; + }; + }; + + fragment@3 { + target = <&uart1_pins>; + __overlay__ { + brcm,pins = <32 33>; + brcm,function = <2>; /* alt5=UART1 */ + brcm,pull = <0 2>; + }; + }; + + fragment@4 { + target-path = "/aliases"; + __overlay__ { + serial0 = "/soc/serial@7e201000"; + serial1 = "/soc/serial@7e215040"; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/piscreen-overlay.dts b/arch/arm/boot/dts/overlays/piscreen-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..40a1f295346e39130a9d5a97844163c434b19e82 --- /dev/null +++ b/arch/arm/boot/dts/overlays/piscreen-overlay.dts @@ -0,0 +1,102 @@ +/* + * Device Tree overlay for PiScreen 3.5" display shield by Ozzmaker + * + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&spidev0>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@2 { + target = <&spidev1>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@3 { + target = <&gpio>; + __overlay__ { + piscreen_pins: piscreen_pins { + brcm,pins = <17 25 24 22>; + brcm,function = <0 1 1 1>; /* in out out out */ + }; + }; + }; + + fragment@4 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + piscreen: piscreen@0{ + compatible = "ilitek,ili9486"; + reg = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&piscreen_pins>; + + spi-max-frequency = <24000000>; + rotate = <270>; + bgr; + fps = <30>; + buswidth = <8>; + regwidth = <16>; + reset-gpios = <&gpio 25 0>; + dc-gpios = <&gpio 24 0>; + led-gpios = <&gpio 22 1>; + debug = <0>; + + init = <0x10000b0 0x00 + 0x1000011 + 0x20000ff + 0x100003a 0x55 + 0x1000036 0x28 + 0x10000c2 0x44 + 0x10000c5 0x00 0x00 0x00 0x00 + 0x10000e0 0x0f 0x1f 0x1c 0x0c 0x0f 0x08 0x48 0x98 0x37 0x0a 0x13 0x04 0x11 0x0d 0x00 + 0x10000e1 0x0f 0x32 0x2e 0x0b 0x0d 0x05 0x47 0x75 0x37 0x06 0x10 0x03 0x24 0x20 0x00 + 0x10000e2 0x0f 0x32 0x2e 0x0b 0x0d 0x05 0x47 0x75 0x37 0x06 0x10 0x03 0x24 0x20 0x00 + 0x1000011 + 0x1000029>; + }; + + piscreen_ts: piscreen-ts@1 { + compatible = "ti,ads7846"; + reg = <1>; + + spi-max-frequency = <2000000>; + interrupts = <17 2>; /* high-to-low edge triggered */ + interrupt-parent = <&gpio>; + pendown-gpio = <&gpio 17 0>; + ti,swap-xy; + ti,x-plate-ohms = /bits/ 16 <100>; + ti,pressure-max = /bits/ 16 <255>; + }; + }; + }; + __overrides__ { + speed = <&piscreen>,"spi-max-frequency:0"; + rotate = <&piscreen>,"rotate:0"; + fps = <&piscreen>,"fps:0"; + debug = <&piscreen>,"debug:0"; + xohms = <&piscreen_ts>,"ti,x-plate-ohms;0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/piscreen2r-overlay.dts b/arch/arm/boot/dts/overlays/piscreen2r-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..9c0bed893057b9129c8f16b0b695b85b1f634597 --- /dev/null +++ b/arch/arm/boot/dts/overlays/piscreen2r-overlay.dts @@ -0,0 +1,106 @@ + /* + * Device Tree overlay for PiScreen2 3.5" TFT with resistive touch by Ozzmaker.com + * + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&spidev0>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@2 { + target = <&spidev1>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@3 { + target = <&gpio>; + __overlay__ { + piscreen2_pins: piscreen2_pins { + brcm,pins = <17 25 24 22>; + brcm,function = <0 1 1 1>; /* in out out out */ + }; + }; + }; + + fragment@4 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + piscreen2: piscreen2@0{ + compatible = "ilitek,ili9486"; + reg = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&piscreen2_pins>; + bgr; + spi-max-frequency = <64000000>; + rotate = <90>; + fps = <30>; + buswidth = <8>; + regwidth = <16>; + txbuflen = <32768>; + reset-gpios = <&gpio 25 0>; + dc-gpios = <&gpio 24 0>; + led-gpios = <&gpio 22 1>; + debug = <0>; + + init = <0x10000b0 0x00 + 0x1000011 + 0x20000ff + 0x100003a 0x55 + 0x1000036 0x28 + 0x10000c0 0x11 0x09 + 0x10000c1 0x41 + 0x10000c5 0x00 0x00 0x00 0x00 + 0x10000b6 0x00 0x02 + 0x10000f7 0xa9 0x51 0x2c 0x2 + 0x10000be 0x00 0x04 + 0x10000e9 0x00 + 0x1000011 + 0x1000029>; + + }; + + piscreen2_ts: piscreen2-ts@1 { + compatible = "ti,ads7846"; + reg = <1>; + + spi-max-frequency = <2000000>; + interrupts = <17 2>; /* high-to-low edge triggered */ + interrupt-parent = <&gpio>; + pendown-gpio = <&gpio 17 0>; + ti,swap-xy; + ti,x-plate-ohms = /bits/ 16 <100>; + ti,pressure-max = /bits/ 16 <255>; + }; + }; + }; + __overrides__ { + speed = <&piscreen2>,"spi-max-frequency:0"; + rotate = <&piscreen2>,"rotate:0"; + fps = <&piscreen2>,"fps:0"; + debug = <&piscreen2>,"debug:0"; + xohms = <&piscreen2_ts>,"ti,x-plate-ohms;0"; + }; +}; + diff --git a/arch/arm/boot/dts/overlays/pisound-overlay.dts b/arch/arm/boot/dts/overlays/pisound-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..5197e656a3d741d14bd9dd6c812b4b93be1419a2 --- /dev/null +++ b/arch/arm/boot/dts/overlays/pisound-overlay.dts @@ -0,0 +1,120 @@ +/* + * pisound Linux kernel module. + * Copyright (C) 2016 Vilniaus Blokas UAB, http://blokas.io/pisound + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; version 2 of the + * License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/dts-v1/; +/plugin/; + +#include + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&spidev0>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@2 { + target = <&spidev1>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@3 { + target = <&spi0>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + + pisound_spi: pisound_spi@0{ + compatible = "blokaslabs,pisound-spi"; + reg = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&spi0_pins>; + spi-max-frequency = <1000000>; + }; + }; + }; + + fragment@4 { + target-path = "/"; + __overlay__ { + pcm5102a-codec { + #sound-dai-cells = <0>; + compatible = "ti,pcm5102a"; + status = "okay"; + }; + }; + }; + + fragment@5 { + target = <&sound>; + __overlay__ { + compatible = "blokaslabs,pisound"; + i2s-controller = <&i2s>; + status = "okay"; + + pinctrl-0 = <&pisound_button_pins>; + + osr-gpios = + <&gpio 13 GPIO_ACTIVE_HIGH>, + <&gpio 26 GPIO_ACTIVE_HIGH>, + <&gpio 16 GPIO_ACTIVE_HIGH>; + + reset-gpios = + <&gpio 12 GPIO_ACTIVE_HIGH>, + <&gpio 24 GPIO_ACTIVE_HIGH>; + + data_available-gpios = <&gpio 25 GPIO_ACTIVE_HIGH>; + + button-gpios = <&gpio 17 GPIO_ACTIVE_LOW>; + }; + }; + + fragment@6 { + target = <&gpio>; + __overlay__ { + pinctrl-names = "default"; + pinctrl-0 = <&pisound_button_pins>; + + pisound_button_pins: pisound_button_pins { + brcm,pins = <17>; + brcm,function = <0>; // Input + brcm,pull = <2>; // Pull-Up + }; + }; + }; + + fragment@7 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/pitft22-overlay.dts b/arch/arm/boot/dts/overlays/pitft22-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..894ba2292f6be76356f3ab39376d84ebd72fa29d --- /dev/null +++ b/arch/arm/boot/dts/overlays/pitft22-overlay.dts @@ -0,0 +1,69 @@ +/* + * Device Tree overlay for pitft by Adafruit + * + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + status = "okay"; + + spidev@0{ + status = "disabled"; + }; + + spidev@1{ + status = "disabled"; + }; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + pitft_pins: pitft_pins { + brcm,pins = <25>; + brcm,function = <1>; /* out */ + brcm,pull = <0>; /* none */ + }; + }; + }; + + fragment@2 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + pitft: pitft@0{ + compatible = "ilitek,ili9340"; + reg = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&pitft_pins>; + + spi-max-frequency = <32000000>; + rotate = <90>; + fps = <25>; + bgr; + buswidth = <8>; + dc-gpios = <&gpio 25 0>; + debug = <0>; + }; + + }; + }; + + __overrides__ { + speed = <&pitft>,"spi-max-frequency:0"; + rotate = <&pitft>,"rotate:0"; + fps = <&pitft>,"fps:0"; + debug = <&pitft>,"debug:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/pitft28-capacitive-overlay.dts b/arch/arm/boot/dts/overlays/pitft28-capacitive-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..5c0752655c70692e1c63f2f662e5b541c4be3617 --- /dev/null +++ b/arch/arm/boot/dts/overlays/pitft28-capacitive-overlay.dts @@ -0,0 +1,91 @@ +/* + * Device Tree overlay for Adafruit PiTFT 2.8" capacitive touch screen + * + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&spidev0>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@2 { + target = <&gpio>; + __overlay__ { + pitft_pins: pitft_pins { + brcm,pins = <24 25>; + brcm,function = <0 1>; /* in out */ + brcm,pull = <2 0>; /* pullup none */ + }; + }; + }; + + fragment@3 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + pitft: pitft@0{ + compatible = "ilitek,ili9340"; + reg = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&pitft_pins>; + + spi-max-frequency = <32000000>; + rotate = <90>; + fps = <25>; + bgr; + buswidth = <8>; + dc-gpios = <&gpio 25 0>; + debug = <0>; + }; + }; + }; + + fragment@4 { + target = <&i2c1>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + ft6236: ft6236@38 { + compatible = "focaltech,ft6236"; + reg = <0x38>; + + interrupt-parent = <&gpio>; + interrupts = <24 2>; + touchscreen-size-x = <240>; + touchscreen-size-y = <320>; + }; + }; + }; + + __overrides__ { + speed = <&pitft>,"spi-max-frequency:0"; + rotate = <&pitft>,"rotate:0"; + fps = <&pitft>,"fps:0"; + debug = <&pitft>,"debug:0"; + touch-sizex = <&ft6236>,"touchscreen-size-x?"; + touch-sizey = <&ft6236>,"touchscreen-size-y?"; + touch-invx = <&ft6236>,"touchscreen-inverted-x?"; + touch-invy = <&ft6236>,"touchscreen-inverted-y?"; + touch-swapxy = <&ft6236>,"touchscreen-swapped-x-y?"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/pitft28-resistive-overlay.dts b/arch/arm/boot/dts/overlays/pitft28-resistive-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..ed2afc2f7fd6528f4e6d75bb2d534307ed020720 --- /dev/null +++ b/arch/arm/boot/dts/overlays/pitft28-resistive-overlay.dts @@ -0,0 +1,121 @@ +/* + * Device Tree overlay for Adafruit PiTFT 2.8" resistive touch screen + * + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&spidev0>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@2 { + target = <&spidev1>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@3 { + target = <&gpio>; + __overlay__ { + pitft_pins: pitft_pins { + brcm,pins = <24 25>; + brcm,function = <0 1>; /* in out */ + brcm,pull = <2 0>; /* pullup none */ + }; + }; + }; + + fragment@4 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + pitft: pitft@0{ + compatible = "ilitek,ili9340"; + reg = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&pitft_pins>; + + spi-max-frequency = <32000000>; + rotate = <90>; + fps = <25>; + bgr; + buswidth = <8>; + dc-gpios = <&gpio 25 0>; + debug = <0>; + }; + + pitft_ts@1 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "st,stmpe610"; + reg = <1>; + + spi-max-frequency = <500000>; + irq-gpio = <&gpio 24 0x2>; /* IRQF_TRIGGER_FALLING */ + interrupts = <24 2>; /* high-to-low edge triggered */ + interrupt-parent = <&gpio>; + interrupt-controller; + + stmpe_touchscreen { + compatible = "st,stmpe-ts"; + st,sample-time = <4>; + st,mod-12b = <1>; + st,ref-sel = <0>; + st,adc-freq = <2>; + st,ave-ctrl = <3>; + st,touch-det-delay = <4>; + st,settling = <2>; + st,fraction-z = <7>; + st,i-drive = <0>; + }; + + stmpe_gpio: stmpe_gpio { + #gpio-cells = <2>; + compatible = "st,stmpe-gpio"; + /* + * only GPIO2 is wired/available + * and it is wired to the backlight + */ + st,norequest-mask = <0x7b>; + }; + }; + }; + }; + + fragment@5 { + target-path = "/soc"; + __overlay__ { + backlight { + compatible = "gpio-backlight"; + gpios = <&stmpe_gpio 2 0>; + default-on; + }; + }; + }; + + __overrides__ { + speed = <&pitft>,"spi-max-frequency:0"; + rotate = <&pitft>,"rotate:0"; + fps = <&pitft>,"fps:0"; + debug = <&pitft>,"debug:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/pitft35-resistive-overlay.dts b/arch/arm/boot/dts/overlays/pitft35-resistive-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..25cb5cc9576dadc3539f4ea3c9507c592ccac9d6 --- /dev/null +++ b/arch/arm/boot/dts/overlays/pitft35-resistive-overlay.dts @@ -0,0 +1,121 @@ +/* + * Device Tree overlay for Adafruit PiTFT 3.5" resistive touch screen + * + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&spidev0>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@2 { + target = <&spidev1>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@3 { + target = <&gpio>; + __overlay__ { + pitft_pins: pitft_pins { + brcm,pins = <24 25>; + brcm,function = <0 1>; /* in out */ + brcm,pull = <2 0>; /* pullup none */ + }; + }; + }; + + fragment@4 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + pitft: pitft@0{ + compatible = "himax,hx8357d"; + reg = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&pitft_pins>; + + spi-max-frequency = <32000000>; + rotate = <90>; + fps = <25>; + bgr; + buswidth = <8>; + dc-gpios = <&gpio 25 0>; + debug = <0>; + }; + + pitft_ts@1 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "st,stmpe610"; + reg = <1>; + + spi-max-frequency = <500000>; + irq-gpio = <&gpio 24 0x2>; /* IRQF_TRIGGER_FALLING */ + interrupts = <24 2>; /* high-to-low edge triggered */ + interrupt-parent = <&gpio>; + interrupt-controller; + + stmpe_touchscreen { + compatible = "st,stmpe-ts"; + st,sample-time = <4>; + st,mod-12b = <1>; + st,ref-sel = <0>; + st,adc-freq = <2>; + st,ave-ctrl = <3>; + st,touch-det-delay = <4>; + st,settling = <2>; + st,fraction-z = <7>; + st,i-drive = <0>; + }; + + stmpe_gpio: stmpe_gpio { + #gpio-cells = <2>; + compatible = "st,stmpe-gpio"; + /* + * only GPIO2 is wired/available + * and it is wired to the backlight + */ + st,norequest-mask = <0x7b>; + }; + }; + }; + }; + + fragment@5 { + target-path = "/soc"; + __overlay__ { + backlight { + compatible = "gpio-backlight"; + gpios = <&stmpe_gpio 2 0>; + default-on; + }; + }; + }; + + __overrides__ { + speed = <&pitft>,"spi-max-frequency:0"; + rotate = <&pitft>,"rotate:0"; + fps = <&pitft>,"fps:0"; + debug = <&pitft>,"debug:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/pps-gpio-overlay.dts b/arch/arm/boot/dts/overlays/pps-gpio-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..50143a4bb215807ba0a0d0562f5827fa29a04de4 --- /dev/null +++ b/arch/arm/boot/dts/overlays/pps-gpio-overlay.dts @@ -0,0 +1,35 @@ +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + fragment@0 { + target-path = "/"; + __overlay__ { + pps: pps { + compatible = "pps-gpio"; + pinctrl-names = "default"; + pinctrl-0 = <&pps_pins>; + gpios = <&gpio 18 0>; + status = "okay"; + }; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + pps_pins: pps_pins { + brcm,pins = <18>; + brcm,function = <0>; // in + brcm,pull = <0>; // off + }; + }; + }; + + __overrides__ { + gpiopin = <&pps>,"gpios:4", + <&pps_pins>,"brcm,pins:0"; + assert_falling_edge = <&pps>,"assert-falling-edge?"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/pwm-2chan-overlay.dts b/arch/arm/boot/dts/overlays/pwm-2chan-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..abdeddd0f2c873e2b1fffcf6f2b838ee0123768f --- /dev/null +++ b/arch/arm/boot/dts/overlays/pwm-2chan-overlay.dts @@ -0,0 +1,47 @@ +/dts-v1/; +/plugin/; + +/* +This is the 2-channel overlay - only use it if you need both channels. + +Legal pin,function combinations for each channel: + PWM0: 12,4(Alt0) 18,2(Alt5) 40,4(Alt0) 52,5(Alt1) + PWM1: 13,4(Alt0) 19,2(Alt5) 41,4(Alt0) 45,4(Alt0) 53,5(Alt1) + +N.B.: + 1) Pin 18 is the only one available on all platforms, and + it is the one used by the I2S audio interface. + Pins 12 and 13 might be better choices on an A+, B+ or Pi2. + 2) The onboard analogue audio output uses both PWM channels. + 3) So be careful mixing audio and PWM. +*/ + +/ { + fragment@0 { + target = <&gpio>; + __overlay__ { + pwm_pins: pwm_pins { + brcm,pins = <18 19>; + brcm,function = <2 2>; /* Alt5 */ + }; + }; + }; + + fragment@1 { + target = <&pwm>; + frag1: __overlay__ { + pinctrl-names = "default"; + pinctrl-0 = <&pwm_pins>; + assigned-clock-rates = <100000000>; + status = "okay"; + }; + }; + + __overrides__ { + pin = <&pwm_pins>,"brcm,pins:0"; + pin2 = <&pwm_pins>,"brcm,pins:4"; + func = <&pwm_pins>,"brcm,function:0"; + func2 = <&pwm_pins>,"brcm,function:4"; + clock = <&frag1>,"assigned-clock-rates:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/pwm-overlay.dts b/arch/arm/boot/dts/overlays/pwm-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..27809e8dc74660a8e922a1aff1bb2ca7186e411c --- /dev/null +++ b/arch/arm/boot/dts/overlays/pwm-overlay.dts @@ -0,0 +1,43 @@ +/dts-v1/; +/plugin/; + +/* +Legal pin,function combinations for each channel: + PWM0: 12,4(Alt0) 18,2(Alt5) 40,4(Alt0) 52,5(Alt1) + PWM1: 13,4(Alt0) 19,2(Alt5) 41,4(Alt0) 45,4(Alt0) 53,5(Alt1) + +N.B.: + 1) Pin 18 is the only one available on all platforms, and + it is the one used by the I2S audio interface. + Pins 12 and 13 might be better choices on an A+, B+ or Pi2. + 2) The onboard analogue audio output uses both PWM channels. + 3) So be careful mixing audio and PWM. +*/ + +/ { + fragment@0 { + target = <&gpio>; + __overlay__ { + pwm_pins: pwm_pins { + brcm,pins = <18>; + brcm,function = <2>; /* Alt5 */ + }; + }; + }; + + fragment@1 { + target = <&pwm>; + frag1: __overlay__ { + pinctrl-names = "default"; + pinctrl-0 = <&pwm_pins>; + assigned-clock-rates = <100000000>; + status = "okay"; + }; + }; + + __overrides__ { + pin = <&pwm_pins>,"brcm,pins:0"; + func = <&pwm_pins>,"brcm,function:0"; + clock = <&frag1>,"assigned-clock-rates:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/qca7000-overlay.dts b/arch/arm/boot/dts/overlays/qca7000-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..b4e601396c4955b9e5de3a639d9afd74d051e3fd --- /dev/null +++ b/arch/arm/boot/dts/overlays/qca7000-overlay.dts @@ -0,0 +1,52 @@ +// Overlay for the Qualcomm Atheros QCA7000 on I2SE's PLC Stamp micro EVK +// Visit: https://www.i2se.com/product/plc-stamp-micro-evk for details + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + status = "okay"; + + spidev@0 { + status = "disabled"; + }; + + eth1: qca7000@0 { + compatible = "qca,qca7000"; + reg = <0>; /* CE0 */ + pinctrl-names = "default"; + pinctrl-0 = <ð1_pins>; + interrupt-parent = <&gpio>; + interrupts = <23 0x1>; /* rising edge */ + spi-max-frequency = <12000000>; + status = "okay"; + }; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + eth1_pins: eth1_pins { + brcm,pins = <23>; + brcm,function = <0>; /* in */ + brcm,pull = <0>; /* none */ + }; + }; + }; + + __overrides__ { + int_pin = <ð1>, "interrupts:0", + <ð1_pins>, "brcm,pins:0"; + speed = <ð1>, "spi-max-frequency:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/raspidac3-overlay.dts b/arch/arm/boot/dts/overlays/raspidac3-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..2c3c97813f22c94eff6da2193aff0920ac7c39b1 --- /dev/null +++ b/arch/arm/boot/dts/overlays/raspidac3-overlay.dts @@ -0,0 +1,49 @@ +// Definitions for RaspiDACv3 +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + pcm5122@4c { + #sound-dai-cells = <0>; + compatible = "ti,pcm5122"; + reg = <0x4c>; + AVDD-supply = <&vdd_3v3_reg>; + DVDD-supply = <&vdd_3v3_reg>; + CPVDD-supply = <&vdd_3v3_reg>; + status = "okay"; + }; + + tpa6130a2: tpa6130a2@60 { + compatible = "ti,tpa6130a2"; + reg = <0x60>; + Vdd-supply = <&vdd_3v3_reg>; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&sound>; + __overlay__ { + compatible = "jg,raspidacv3"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/rpi-backlight-overlay.dts b/arch/arm/boot/dts/overlays/rpi-backlight-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..c021d02bb75ff5ceb5c5066d00e4bca942554032 --- /dev/null +++ b/arch/arm/boot/dts/overlays/rpi-backlight-overlay.dts @@ -0,0 +1,21 @@ +/* + * Devicetree overlay for mailbox-driven Raspberry Pi DSI Display + * backlight controller + */ +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target-path = "/"; + __overlay__ { + rpi_backlight: rpi_backlight { + compatible = "raspberrypi,rpi-backlight"; + firmware = <&firmware>; + status = "okay"; + }; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/rpi-cirrus-wm5102-overlay.dts b/arch/arm/boot/dts/overlays/rpi-cirrus-wm5102-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..cf85f0af224067cf58053a143664f0716d5ce71a --- /dev/null +++ b/arch/arm/boot/dts/overlays/rpi-cirrus-wm5102-overlay.dts @@ -0,0 +1,146 @@ +// Definitions for the Cirrus Logic Audio Card +/dts-v1/; +/plugin/; +#include +#include +#include + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + wlf_pins: wlf_pins { + brcm,pins = <17 22 27 8>; + brcm,function = < + BCM2835_FSEL_GPIO_OUT + BCM2835_FSEL_GPIO_OUT + BCM2835_FSEL_GPIO_IN + BCM2835_FSEL_GPIO_OUT + >; + }; + }; + }; + + fragment@2 { + target-path = "/"; + __overlay__ { + rpi_cirrus_reg_1v8: rpi_cirrus_reg_1v8 { + compatible = "regulator-fixed"; + regulator-name = "RPi-Cirrus 1v8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + }; + }; + }; + + fragment@3 { + target = <&spi0>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + spidev@0{ + status = "disabled"; + }; + + spidev@1{ + status = "disabled"; + }; + + wm5102@1{ + compatible = "wlf,wm5102"; + reg = <1>; + + spi-max-frequency = <500000>; + + interrupt-parent = <&gpio>; + interrupts = <27 8>; + interrupt-controller; + #interrupt-cells = <2>; + + gpio-controller; + #gpio-cells = <2>; + + LDOVDD-supply = <&rpi_cirrus_reg_1v8>; + AVDD-supply = <&rpi_cirrus_reg_1v8>; + DBVDD1-supply = <&rpi_cirrus_reg_1v8>; + DBVDD2-supply = <&vdd_3v3_reg>; + DBVDD3-supply = <&vdd_3v3_reg>; + CPVDD-supply = <&rpi_cirrus_reg_1v8>; + SPKVDDL-supply = <&vdd_5v0_reg>; + SPKVDDR-supply = <&vdd_5v0_reg>; + DCVDD-supply = <&arizona_ldo1>; + + wlf,reset = <&gpio 17 GPIO_ACTIVE_HIGH>; + wlf,ldoena = <&gpio 22 GPIO_ACTIVE_HIGH>; + wlf,gpio-defaults = < + ARIZONA_GP_DEFAULT + ARIZONA_GP_DEFAULT + ARIZONA_GP_DEFAULT + ARIZONA_GP_DEFAULT + ARIZONA_GP_DEFAULT + >; + wlf,micd-configs = <0 1 0>; + wlf,dmic-ref = < + ARIZONA_DMIC_MICVDD + ARIZONA_DMIC_MICBIAS2 + ARIZONA_DMIC_MICVDD + ARIZONA_DMIC_MICVDD + >; + wlf,inmode = < + ARIZONA_INMODE_DIFF + ARIZONA_INMODE_DMIC + ARIZONA_INMODE_SE + ARIZONA_INMODE_DIFF + >; + status = "okay"; + + arizona_ldo1: ldo1 { + regulator-name = "LDO1"; + // default constraints as in + // arizona-ldo1.c + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1800000>; + }; + }; + }; + }; + + fragment@4 { + target = <&i2c1>; + __overlay__ { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + + wm8804@3b { + compatible = "wlf,wm8804"; + reg = <0x3b>; + status = "okay"; + PVDD-supply = <&vdd_3v3_reg>; + DVDD-supply = <&vdd_3v3_reg>; + wlf,reset-gpio = <&gpio 8 GPIO_ACTIVE_HIGH>; + }; + }; + }; + + fragment@5 { + target = <&sound>; + __overlay__ { + compatible = "wlf,rpi-cirrus"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/rpi-dac-overlay.dts b/arch/arm/boot/dts/overlays/rpi-dac-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..a442c8f0ec01b7503f32e070683a984e895f5668 --- /dev/null +++ b/arch/arm/boot/dts/overlays/rpi-dac-overlay.dts @@ -0,0 +1,34 @@ +// Definitions for RPi DAC +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target-path = "/"; + __overlay__ { + pcm1794a-codec { + #sound-dai-cells = <0>; + compatible = "ti,pcm1794a"; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&sound>; + __overlay__ { + compatible = "rpi,rpi-dac"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/rpi-display-overlay.dts b/arch/arm/boot/dts/overlays/rpi-display-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..d7e72eef594e08b309ffbaa04f43c68909c08f36 --- /dev/null +++ b/arch/arm/boot/dts/overlays/rpi-display-overlay.dts @@ -0,0 +1,89 @@ +/* + * Device Tree overlay for rpi-display by Watterott + * + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&spidev0>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@2 { + target = <&spidev1>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@3 { + target = <&gpio>; + __overlay__ { + rpi_display_pins: rpi_display_pins { + brcm,pins = <18 23 24 25>; + brcm,function = <1 1 1 0>; /* out out out in */ + brcm,pull = <0 0 0 2>; /* - - - up */ + }; + }; + }; + + fragment@4 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + rpidisplay: rpi-display@0{ + compatible = "ilitek,ili9341"; + reg = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&rpi_display_pins>; + + spi-max-frequency = <32000000>; + rotate = <270>; + bgr; + fps = <30>; + buswidth = <8>; + reset-gpios = <&gpio 23 0>; + dc-gpios = <&gpio 24 0>; + led-gpios = <&gpio 18 1>; + debug = <0>; + }; + + rpidisplay_ts: rpi-display-ts@1 { + compatible = "ti,ads7846"; + reg = <1>; + + spi-max-frequency = <2000000>; + interrupts = <25 2>; /* high-to-low edge triggered */ + interrupt-parent = <&gpio>; + pendown-gpio = <&gpio 25 0>; + ti,x-plate-ohms = /bits/ 16 <60>; + ti,pressure-max = /bits/ 16 <255>; + }; + }; + }; + __overrides__ { + speed = <&rpidisplay>,"spi-max-frequency:0"; + rotate = <&rpidisplay>,"rotate:0"; + fps = <&rpidisplay>,"fps:0"; + debug = <&rpidisplay>,"debug:0"; + xohms = <&rpidisplay_ts>,"ti,x-plate-ohms;0"; + swapxy = <&rpidisplay_ts>,"ti,swap-xy?"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/rpi-ft5406-overlay.dts b/arch/arm/boot/dts/overlays/rpi-ft5406-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..2e53a17491706bdb6245426b548a54960a40966f --- /dev/null +++ b/arch/arm/boot/dts/overlays/rpi-ft5406-overlay.dts @@ -0,0 +1,17 @@ +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target-path = "/"; + __overlay__ { + rpi_ft5406: rpi_ft5406 { + compatible = "rpi,rpi-ft5406"; + firmware = <&firmware>; + status = "okay"; + }; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/rpi-proto-overlay.dts b/arch/arm/boot/dts/overlays/rpi-proto-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..8332d0159a45b29952d0ad1a8fda339d4fdbee3e --- /dev/null +++ b/arch/arm/boot/dts/overlays/rpi-proto-overlay.dts @@ -0,0 +1,39 @@ +// Definitions for Rpi-Proto +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + wm8731@1a { + #sound-dai-cells = <0>; + compatible = "wlf,wm8731"; + reg = <0x1a>; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&sound>; + __overlay__ { + compatible = "rpi,rpi-proto"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/rpi-sense-overlay.dts b/arch/arm/boot/dts/overlays/rpi-sense-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..27153240e1be595ae07c7ec74db1615532904140 --- /dev/null +++ b/arch/arm/boot/dts/overlays/rpi-sense-overlay.dts @@ -0,0 +1,47 @@ +// rpi-sense HAT +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + rpi-sense@46 { + compatible = "rpi,rpi-sense"; + reg = <0x46>; + keys-int-gpios = <&gpio 23 1>; + status = "okay"; + }; + + lsm9ds1-magn@1c { + compatible = "st,lsm9ds1-magn"; + reg = <0x1c>; + status = "okay"; + }; + + lsm9ds1-accel6a { + compatible = "st,lsm9ds1-accel"; + reg = <0x6a>; + status = "okay"; + }; + + lps25h-press@5c { + compatible = "st,lps25h-press"; + reg = <0x5c>; + status = "okay"; + }; + + hts221-humid@5f { + compatible = "st,hts221-humid"; + reg = <0x5f>; + status = "okay"; + }; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/rra-digidac1-wm8741-audio-overlay.dts b/arch/arm/boot/dts/overlays/rra-digidac1-wm8741-audio-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..f8d48233e28c7c18509b4a95692f6aff29ea33fd --- /dev/null +++ b/arch/arm/boot/dts/overlays/rra-digidac1-wm8741-audio-overlay.dts @@ -0,0 +1,49 @@ +// Definitions for RRA DigiDAC1 Audio card +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + wm8804@3b { + #sound-dai-cells = <0>; + compatible = "wlf,wm8804"; + reg = <0x3b>; + status = "okay"; + PVDD-supply = <&vdd_3v3_reg>; + DVDD-supply = <&vdd_3v3_reg>; + }; + + wm8742: wm8741@1a { + compatible = "wlf,wm8741"; + reg = <0x1a>; + status = "okay"; + AVDD-supply = <&vdd_5v0_reg>; + DVDD-supply = <&vdd_3v3_reg>; + }; + }; + }; + + fragment@2 { + target = <&sound>; + __overlay__ { + compatible = "rra,digidac1-soundcard"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/sc16is750-i2c-overlay.dts b/arch/arm/boot/dts/overlays/sc16is750-i2c-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..339d0d17c01ff182edd0871de9dc4ea744917ad4 --- /dev/null +++ b/arch/arm/boot/dts/overlays/sc16is750-i2c-overlay.dts @@ -0,0 +1,37 @@ +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&i2c_arm>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + sc16is750: sc16is750@48 { + compatible = "nxp,sc16is750"; + reg = <0x48>; /* address */ + clocks = <&sc16is750_clk>; + interrupt-parent = <&gpio>; + interrupts = <24 2>; /* IRQ_TYPE_EDGE_FALLING */ + #gpio-cells = <2>; + + sc16is750_clk: sc16is750_clk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <14745600>; + }; + }; + }; + }; + + + __overrides__ { + int_pin = <&sc16is750>,"interrupts:0"; + addr = <&sc16is750>,"reg:0"; + }; + +}; diff --git a/arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts b/arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..d0a9e82dbea143e80249064873d8b9f0b56b2eaa --- /dev/null +++ b/arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts @@ -0,0 +1,61 @@ +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&gpio>; + __overlay__ { + spi1_pins: spi1_pins { + brcm,pins = <19 20 21>; + brcm,function = <3>; /* alt4 */ + }; + + spi1_cs_pins: spi1_cs_pins { + brcm,pins = <18>; + brcm,function = <1>; /* output */ + }; + }; + }; + + fragment@1 { + target = <&spi1>; + frag1: __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&spi1_pins &spi1_cs_pins>; + cs-gpios = <&gpio 18 1>; + status = "okay"; + + sc16is752: sc16is752@0 { + compatible = "nxp,sc16is752"; + reg = <0>; /* CE0 */ + clocks = <&sc16is752_clk>; + interrupt-parent = <&gpio>; + interrupts = <24 2>; /* IRQ_TYPE_EDGE_FALLING */ + #gpio-controller; + #gpio-cells = <2>; + spi-max-frequency = <4000000>; + + sc16is752_clk: sc16is752_clk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <14745600>; + }; + }; + }; + }; + + fragment@2 { + target = <&aux>; + __overlay__ { + status = "okay"; + }; + }; + + __overrides__ { + int_pin = <&sc16is752>,"interrupts:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/sdhost-overlay.dts b/arch/arm/boot/dts/overlays/sdhost-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..a431177a1c9d320d5432ea448ad4d0f696c34525 --- /dev/null +++ b/arch/arm/boot/dts/overlays/sdhost-overlay.dts @@ -0,0 +1,32 @@ +/dts-v1/; +/plugin/; + +/* Provide backwards compatible aliases for the old sdhost dtparams. */ + +/{ + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&sdhost>; + frag0: __overlay__ { + brcm,overclock-50 = <0>; + brcm,pio-limit = <1>; + brcm,debug-flags = <0>; + status = "okay"; + }; + }; + + fragment@1 { + target = <&mmc>; + __overlay__ { + status = "disabled"; + }; + }; + + __overrides__ { + overclock_50 = <&frag0>,"brcm,overclock-50:0"; + force_pio = <&frag0>,"brcm,force-pio?"; + pio_limit = <&frag0>,"brcm,pio-limit:0"; + debug = <&frag0>,"brcm,debug?"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/sdio-1bit-overlay.dts b/arch/arm/boot/dts/overlays/sdio-1bit-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..46d453859b31f5c700a8a2e39a2c209330bc108f --- /dev/null +++ b/arch/arm/boot/dts/overlays/sdio-1bit-overlay.dts @@ -0,0 +1,36 @@ +/* Enable 1-bit SDIO from MMC interface via GPIOs 22-25. Includes sdhost overlay. */ + +/include/ "sdhost-overlay.dts" + +/{ + compatible = "brcm,bcm2708"; + + fragment@3 { + target = <&mmc>; + sdio_mmc: __overlay__ { + compatible = "brcm,bcm2835-mmc"; + pinctrl-names = "default"; + pinctrl-0 = <&sdio_pins>; + non-removable; + bus-width = <1>; + brcm,overclock-50 = <0>; + status = "okay"; + }; + }; + + fragment@4 { + target = <&gpio>; + __overlay__ { + sdio_pins: sdio_pins { + brcm,pins = <22 23 24 25>; + brcm,function = <7 7 7 7>; /* ALT3 = SD1 */ + brcm,pull = <0 2 2 2>; + }; + }; + }; + + __overrides__ { + poll_once = <&sdio_mmc>,"non-removable?"; + sdio_overclock = <&sdio_mmc>,"brcm,overclock-50:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/sdio-overlay.dts b/arch/arm/boot/dts/overlays/sdio-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..398bd812c716c9e472fbac5aba4fe882114c65d1 --- /dev/null +++ b/arch/arm/boot/dts/overlays/sdio-overlay.dts @@ -0,0 +1,36 @@ +/* Enable SDIO from MMC interface via GPIOs 22-27. Includes sdhost overlay. */ + +/include/ "sdhost-overlay.dts" + +/{ + compatible = "brcm,bcm2708"; + + fragment@3 { + target = <&mmc>; + sdio_mmc: __overlay__ { + pinctrl-names = "default"; + pinctrl-0 = <&sdio_pins>; + non-removable; + bus-width = <4>; + brcm,overclock-50 = <0>; + status = "okay"; + }; + }; + + fragment@4 { + target = <&gpio>; + __overlay__ { + sdio_pins: sdio_pins { + brcm,pins = <22 23 24 25 26 27>; + brcm,function = <7 7 7 7 7 7>; /* ALT3 = SD1 */ + brcm,pull = <0 2 2 2 2 2>; + }; + }; + }; + + __overrides__ { + poll_once = <&sdio_mmc>,"non-removable?"; + bus_width = <&sdio_mmc>,"bus-width:0"; + sdio_overclock = <&sdio_mmc>,"brcm,overclock-50:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/sdtweak-overlay.dts b/arch/arm/boot/dts/overlays/sdtweak-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..e4a4677f6b20da6b51751e9675c1c276ca4d2051 --- /dev/null +++ b/arch/arm/boot/dts/overlays/sdtweak-overlay.dts @@ -0,0 +1,23 @@ +/dts-v1/; +/plugin/; + +/* Provide backwards compatible aliases for the old sdhost dtparams. */ + +/{ + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&sdhost>; + frag0: __overlay__ { + brcm,overclock-50 = <0>; + brcm,pio-limit = <1>; + }; + }; + + __overrides__ { + overclock_50 = <&frag0>,"brcm,overclock-50:0"; + force_pio = <&frag0>,"brcm,force-pio?"; + pio_limit = <&frag0>,"brcm,pio-limit:0"; + debug = <&frag0>,"brcm,debug?"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/smi-dev-overlay.dts b/arch/arm/boot/dts/overlays/smi-dev-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..b610d828360810e80133850adf7b459c66b3ed5d --- /dev/null +++ b/arch/arm/boot/dts/overlays/smi-dev-overlay.dts @@ -0,0 +1,18 @@ +// Description: Overlay to enable character device interface for SMI. +// Author: Luke Wren + +/dts-v1/; +/plugin/; + +/{ + fragment@0 { + target = <&soc>; + __overlay__ { + smi_dev { + compatible = "brcm,bcm2835-smi-dev"; + smi_handle = <&smi>; + status = "okay"; + }; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/smi-nand-overlay.dts b/arch/arm/boot/dts/overlays/smi-nand-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..13ce0b7cfb242df1019f91ed2fc03f514927c3e7 --- /dev/null +++ b/arch/arm/boot/dts/overlays/smi-nand-overlay.dts @@ -0,0 +1,69 @@ +// Description: Overlay to enable NAND flash through +// the secondary memory interface +// Author: Luke Wren + +/dts-v1/; +/plugin/; + +/{ + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&smi>; + __overlay__ { + pinctrl-names = "default"; + pinctrl-0 = <&smi_pins>; + status = "okay"; + }; + }; + + fragment@1 { + target = <&soc>; + __overlay__ { + #address-cells = <1>; + #size-cells = <1>; + + nand: flash@0 { + compatible = "brcm,bcm2835-smi-nand"; + smi_handle = <&smi>; + #address-cells = <1>; + #size-cells = <1>; + status = "okay"; + + partition@0 { + label = "stage2"; + // 128k + reg = <0 0x20000>; + read-only; + }; + partition@1 { + label = "firmware"; + // 16M + reg = <0x20000 0x1000000>; + read-only; + }; + partition@2 { + label = "root"; + // 2G (will need to use 64 bit for >=4G) + reg = <0x1020000 0x80000000>; + }; + }; + }; + }; + + fragment@2 { + target = <&gpio>; + __overlay__ { + smi_pins: smi_pins { + brcm,pins = <0 1 2 3 4 5 6 7 8 9 10 11 + 12 13 14 15>; + /* Alt 1: SMI */ + brcm,function = <5 5 5 5 5 5 5 5 5 5 5 + 5 5 5 5 5>; + /* /CS, /WE and /OE are pulled high, as they are + generally active low signals */ + brcm,pull = <2 2 2 2 2 2 2 2 0 0 0 0 0 0 0 0>; + }; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/smi-overlay.dts b/arch/arm/boot/dts/overlays/smi-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..095f52c355fd6382233d8a471c3590a4275d6c75 --- /dev/null +++ b/arch/arm/boot/dts/overlays/smi-overlay.dts @@ -0,0 +1,37 @@ +// Description: Overlay to enable the secondary memory interface peripheral +// Author: Luke Wren + +/dts-v1/; +/plugin/; + +/{ + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&smi>; + __overlay__ { + pinctrl-names = "default"; + pinctrl-0 = <&smi_pins>; + status = "okay"; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + smi_pins: smi_pins { + /* Don't configure the top two address bits, as + these are already used as ID_SD and ID_SC */ + brcm,pins = <2 3 4 5 6 7 8 9 10 11 12 13 14 15 + 16 17 18 19 20 21 22 23 24 25>; + /* Alt 0: SMI */ + brcm,function = <5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 + 5 5 5 5 5 5 5 5 5>; + /* /CS, /WE and /OE are pulled high, as they are + generally active low signals */ + brcm,pull = <2 2 2 2 2 2 0 0 0 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0>; + }; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/spi-gpio35-39-overlay.dts b/arch/arm/boot/dts/overlays/spi-gpio35-39-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..49803b309f8643385a3c97f6cdd2015f863d2d34 --- /dev/null +++ b/arch/arm/boot/dts/overlays/spi-gpio35-39-overlay.dts @@ -0,0 +1,31 @@ +/* + * Device tree overlay to move spi0 to gpio 35 to 39 on CM + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2836", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + cs-gpios = <&gpio 36 1>, <&gpio 35 1>; + }; + }; + + fragment@1 { + target = <&spi0_cs_pins>; + __overlay__ { + brcm,pins = <36 35>; + }; + }; + + fragment@2 { + target = <&spi0_pins>; + __overlay__ { + brcm,pins = <37 38 39>; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/spi-rtc-overlay.dts b/arch/arm/boot/dts/overlays/spi-rtc-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..88d1800d63c9f6727b46d4e590c8e96c671c3755 --- /dev/null +++ b/arch/arm/boot/dts/overlays/spi-rtc-overlay.dts @@ -0,0 +1,33 @@ +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&spidev0>; + __dormant__ { + status = "disabled"; + }; + }; + + fragment@1 { + target = <&spi0>; + __dormant__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + rtc-pcf2123@0 { + compatible = "nxp,rtc-pcf2123"; + spi-max-frequency = <5000000>; + spi-cs-high = <1>; + reg = <0>; + }; + }; + }; + + __overrides__ { + pcf2123 = <0>, "=0=1"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/spi0-cs-overlay.dts b/arch/arm/boot/dts/overlays/spi0-cs-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..7f79029d043c04d7496c7c3480450c691dc9a5cb --- /dev/null +++ b/arch/arm/boot/dts/overlays/spi0-cs-overlay.dts @@ -0,0 +1,29 @@ +/dts-v1/; +/plugin/; + + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&spi0_cs_pins>; + frag0: __overlay__ { + brcm,pins = <8 7>; + }; + }; + + fragment@1 { + target = <&spi0>; + frag1: __overlay__ { + cs-gpios = <&gpio 8 1>, <&gpio 7 1>; + status = "okay"; + }; + }; + + __overrides__ { + cs0_pin = <&frag0>,"brcm,pins:0", + <&frag1>,"cs-gpios:4"; + cs1_pin = <&frag0>,"brcm,pins:4", + <&frag1>,"cs-gpios:16"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/spi0-hw-cs-overlay.dts b/arch/arm/boot/dts/overlays/spi0-hw-cs-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..ef9845f7184ee1ea90e8bdc23493b1cbbdc21896 --- /dev/null +++ b/arch/arm/boot/dts/overlays/spi0-hw-cs-overlay.dts @@ -0,0 +1,26 @@ +/* + * Device tree overlay to re-enable hardware CS for SPI0 + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2836", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + cs-gpios = <0>, <0>; + status = "okay"; + }; + }; + + fragment@1 { + target = <&spi0_cs_pins>; + __overlay__ { + brcm,pins = <8 7>; + brcm,function = <4>; /* alt0 */ + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/spi1-1cs-overlay.dts b/arch/arm/boot/dts/overlays/spi1-1cs-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..71c243947004fa887998065df9c259b50edfa428 --- /dev/null +++ b/arch/arm/boot/dts/overlays/spi1-1cs-overlay.dts @@ -0,0 +1,57 @@ +/dts-v1/; +/plugin/; + + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&gpio>; + __overlay__ { + spi1_pins: spi1_pins { + brcm,pins = <19 20 21>; + brcm,function = <3>; /* alt4 */ + }; + + spi1_cs_pins: spi1_cs_pins { + brcm,pins = <18>; + brcm,function = <1>; /* output */ + }; + }; + }; + + fragment@1 { + target = <&spi1>; + frag1: __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&spi1_pins &spi1_cs_pins>; + cs-gpios = <&gpio 18 1>; + status = "okay"; + + spidev1_0: spidev@0 { + compatible = "spidev"; + reg = <0>; /* CE0 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&aux>; + __overlay__ { + status = "okay"; + }; + }; + + __overrides__ { + cs0_pin = <&spi1_cs_pins>,"brcm,pins:0", + <&frag1>,"cs-gpios:4"; + cs0_spidev = <&spidev1_0>,"status"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/spi1-2cs-overlay.dts b/arch/arm/boot/dts/overlays/spi1-2cs-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..2ae0885cf1e7fb7420f65e538310ab1addafbece --- /dev/null +++ b/arch/arm/boot/dts/overlays/spi1-2cs-overlay.dts @@ -0,0 +1,69 @@ +/dts-v1/; +/plugin/; + + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&gpio>; + __overlay__ { + spi1_pins: spi1_pins { + brcm,pins = <19 20 21>; + brcm,function = <3>; /* alt4 */ + }; + + spi1_cs_pins: spi1_cs_pins { + brcm,pins = <18 17>; + brcm,function = <1>; /* output */ + }; + }; + }; + + fragment@1 { + target = <&spi1>; + frag1: __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&spi1_pins &spi1_cs_pins>; + cs-gpios = <&gpio 18 1>, <&gpio 17 1>; + status = "okay"; + + spidev1_0: spidev@0 { + compatible = "spidev"; + reg = <0>; /* CE0 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + status = "okay"; + }; + + spidev1_1: spidev@1 { + compatible = "spidev"; + reg = <1>; /* CE1 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&aux>; + __overlay__ { + status = "okay"; + }; + }; + + __overrides__ { + cs0_pin = <&spi1_cs_pins>,"brcm,pins:0", + <&frag1>,"cs-gpios:4"; + cs1_pin = <&spi1_cs_pins>,"brcm,pins:4", + <&frag1>,"cs-gpios:16"; + cs0_spidev = <&spidev1_0>,"status"; + cs1_spidev = <&spidev1_1>,"status"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/spi1-3cs-overlay.dts b/arch/arm/boot/dts/overlays/spi1-3cs-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..8f79044cd8f47ea055394822cc380497c985c7e5 --- /dev/null +++ b/arch/arm/boot/dts/overlays/spi1-3cs-overlay.dts @@ -0,0 +1,81 @@ +/dts-v1/; +/plugin/; + + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&gpio>; + __overlay__ { + spi1_pins: spi1_pins { + brcm,pins = <19 20 21>; + brcm,function = <3>; /* alt4 */ + }; + + spi1_cs_pins: spi1_cs_pins { + brcm,pins = <18 17 16>; + brcm,function = <1>; /* output */ + }; + }; + }; + + fragment@1 { + target = <&spi1>; + frag1: __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&spi1_pins &spi1_cs_pins>; + cs-gpios = <&gpio 18 1>, <&gpio 17 1>, <&gpio 16 1>; + status = "okay"; + + spidev1_0: spidev@0 { + compatible = "spidev"; + reg = <0>; /* CE0 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + status = "okay"; + }; + + spidev1_1: spidev@1 { + compatible = "spidev"; + reg = <1>; /* CE1 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + status = "okay"; + }; + + spidev1_2: spidev@2 { + compatible = "spidev"; + reg = <2>; /* CE2 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&aux>; + __overlay__ { + status = "okay"; + }; + }; + + __overrides__ { + cs0_pin = <&spi1_cs_pins>,"brcm,pins:0", + <&frag1>,"cs-gpios:4"; + cs1_pin = <&spi1_cs_pins>,"brcm,pins:4", + <&frag1>,"cs-gpios:16"; + cs2_pin = <&spi1_cs_pins>,"brcm,pins:8", + <&frag1>,"cs-gpios:28"; + cs0_spidev = <&spidev1_0>,"status"; + cs1_spidev = <&spidev1_1>,"status"; + cs2_spidev = <&spidev1_2>,"status"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/spi2-1cs-overlay.dts b/arch/arm/boot/dts/overlays/spi2-1cs-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..6f57bc710fe123028a5a216063733f0cea9bbd54 --- /dev/null +++ b/arch/arm/boot/dts/overlays/spi2-1cs-overlay.dts @@ -0,0 +1,57 @@ +/dts-v1/; +/plugin/; + + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&gpio>; + __overlay__ { + spi2_pins: spi2_pins { + brcm,pins = <40 41 42>; + brcm,function = <3>; /* alt4 */ + }; + + spi2_cs_pins: spi2_cs_pins { + brcm,pins = <43>; + brcm,function = <1>; /* output */ + }; + }; + }; + + fragment@1 { + target = <&spi2>; + frag1: __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&spi2_pins &spi2_cs_pins>; + cs-gpios = <&gpio 43 1>; + status = "okay"; + + spidev2_0: spidev@0 { + compatible = "spidev"; + reg = <0>; /* CE0 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&aux>; + __overlay__ { + status = "okay"; + }; + }; + + __overrides__ { + cs0_pin = <&spi2_cs_pins>,"brcm,pins:0", + <&frag1>,"cs-gpios:4"; + cs0_spidev = <&spidev2_0>,"status"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/spi2-2cs-overlay.dts b/arch/arm/boot/dts/overlays/spi2-2cs-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..d090631d36821b0c89833b9f217216f0b134a8f3 --- /dev/null +++ b/arch/arm/boot/dts/overlays/spi2-2cs-overlay.dts @@ -0,0 +1,69 @@ +/dts-v1/; +/plugin/; + + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&gpio>; + __overlay__ { + spi2_pins: spi2_pins { + brcm,pins = <40 41 42>; + brcm,function = <3>; /* alt4 */ + }; + + spi2_cs_pins: spi2_cs_pins { + brcm,pins = <43 44>; + brcm,function = <1>; /* output */ + }; + }; + }; + + fragment@1 { + target = <&spi2>; + frag1: __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&spi2_pins &spi2_cs_pins>; + cs-gpios = <&gpio 43 1>, <&gpio 44 1>; + status = "okay"; + + spidev2_0: spidev@0 { + compatible = "spidev"; + reg = <0>; /* CE0 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + status = "okay"; + }; + + spidev2_1: spidev@1 { + compatible = "spidev"; + reg = <1>; /* CE1 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&aux>; + __overlay__ { + status = "okay"; + }; + }; + + __overrides__ { + cs0_pin = <&spi2_cs_pins>,"brcm,pins:0", + <&frag1>,"cs-gpios:4"; + cs1_pin = <&spi2_cs_pins>,"brcm,pins:4", + <&frag1>,"cs-gpios:16"; + cs0_spidev = <&spidev2_0>,"status"; + cs1_spidev = <&spidev2_1>,"status"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/spi2-3cs-overlay.dts b/arch/arm/boot/dts/overlays/spi2-3cs-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..e2586728c311829462f6a4b3b348e35603f033ce --- /dev/null +++ b/arch/arm/boot/dts/overlays/spi2-3cs-overlay.dts @@ -0,0 +1,81 @@ +/dts-v1/; +/plugin/; + + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&gpio>; + __overlay__ { + spi2_pins: spi2_pins { + brcm,pins = <40 41 42>; + brcm,function = <3>; /* alt4 */ + }; + + spi2_cs_pins: spi2_cs_pins { + brcm,pins = <43 44 45>; + brcm,function = <1>; /* output */ + }; + }; + }; + + fragment@1 { + target = <&spi2>; + frag1: __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&spi2_pins &spi2_cs_pins>; + cs-gpios = <&gpio 43 1>, <&gpio 44 1>, <&gpio 45 1>; + status = "okay"; + + spidev2_0: spidev@0 { + compatible = "spidev"; + reg = <0>; /* CE0 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + status = "okay"; + }; + + spidev2_1: spidev@1 { + compatible = "spidev"; + reg = <1>; /* CE1 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + status = "okay"; + }; + + spidev2_2: spidev@2 { + compatible = "spidev"; + reg = <2>; /* CE2 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <500000>; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&aux>; + __overlay__ { + status = "okay"; + }; + }; + + __overrides__ { + cs0_pin = <&spi2_cs_pins>,"brcm,pins:0", + <&frag1>,"cs-gpios:4"; + cs1_pin = <&spi2_cs_pins>,"brcm,pins:4", + <&frag1>,"cs-gpios:16"; + cs2_pin = <&spi2_cs_pins>,"brcm,pins:8", + <&frag1>,"cs-gpios:28"; + cs0_spidev = <&spidev2_0>,"status"; + cs1_spidev = <&spidev2_1>,"status"; + cs2_spidev = <&spidev2_2>,"status"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/tinylcd35-overlay.dts b/arch/arm/boot/dts/overlays/tinylcd35-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..ed2b053aef23e0b1b34d8d3cb888b2b196758f59 --- /dev/null +++ b/arch/arm/boot/dts/overlays/tinylcd35-overlay.dts @@ -0,0 +1,224 @@ +/* + * tinylcd35-overlay.dts + * + * ------------------------------------------------- + * www.tinlylcd.com + * ------------------------------------------------- + * Device---Driver-----BUS GPIO's + * display tinylcd35 spi0.0 25 24 18 + * touch ads7846 spi0.1 5 + * rtc ds1307 i2c1-0068 + * rtc pcf8563 i2c1-0051 + * keypad gpio-keys --------- 17 22 27 23 28 + * + * + * TinyLCD.com 3.5 inch TFT + * + * Version 001 + * 5/3/2015 -- Noralf Trønnes Initial Device tree framework + * 10/3/2015 -- tinylcd@gmail.com added ds1307 support. + * + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&spidev0>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@2 { + target = <&spidev1>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@3 { + target = <&gpio>; + __overlay__ { + tinylcd35_pins: tinylcd35_pins { + brcm,pins = <25 24 18>; + brcm,function = <1>; /* out */ + }; + tinylcd35_ts_pins: tinylcd35_ts_pins { + brcm,pins = <5>; + brcm,function = <0>; /* in */ + }; + keypad_pins: keypad_pins { + brcm,pins = <4 17 22 23 27>; + brcm,function = <0>; /* in */ + brcm,pull = <1>; /* down */ + }; + }; + }; + + fragment@4 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + tinylcd35: tinylcd35@0{ + compatible = "neosec,tinylcd"; + reg = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&tinylcd35_pins>, + <&tinylcd35_ts_pins>; + + spi-max-frequency = <48000000>; + rotate = <270>; + fps = <20>; + bgr; + buswidth = <8>; + reset-gpios = <&gpio 25 0>; + dc-gpios = <&gpio 24 0>; + led-gpios = <&gpio 18 1>; + debug = <0>; + + init = <0x10000B0 0x80 + 0x10000C0 0x0A 0x0A + 0x10000C1 0x01 0x01 + 0x10000C2 0x33 + 0x10000C5 0x00 0x42 0x80 + 0x10000B1 0xD0 0x11 + 0x10000B4 0x02 + 0x10000B6 0x00 0x22 0x3B + 0x10000B7 0x07 + 0x1000036 0x58 + 0x10000F0 0x36 0xA5 0xD3 + 0x10000E5 0x80 + 0x10000E5 0x01 + 0x10000B3 0x00 + 0x10000E5 0x00 + 0x10000F0 0x36 0xA5 0x53 + 0x10000E0 0x00 0x35 0x33 0x00 0x00 0x00 0x00 0x35 0x33 0x00 0x00 0x00 + 0x100003A 0x55 + 0x1000011 + 0x2000001 + 0x1000029>; + }; + + tinylcd35_ts: tinylcd35_ts@1 { + compatible = "ti,ads7846"; + reg = <1>; + status = "disabled"; + + spi-max-frequency = <2000000>; + interrupts = <5 2>; /* high-to-low edge triggered */ + interrupt-parent = <&gpio>; + pendown-gpio = <&gpio 5 0>; + ti,x-plate-ohms = /bits/ 16 <100>; + ti,pressure-max = /bits/ 16 <255>; + }; + }; + }; + + /* RTC */ + + fragment@5 { + target = <&i2c1>; + __dormant__ { + #address-cells = <1>; + #size-cells = <0>; + + status = "okay"; + + pcf8563: pcf8563@51 { + compatible = "nxp,pcf8563"; + reg = <0x51>; + status = "okay"; + }; + }; + }; + + fragment@6 { + target = <&i2c1>; + __dormant__ { + #address-cells = <1>; + #size-cells = <0>; + + status = "okay"; + + ds1307: ds1307@68 { + compatible = "maxim,ds1307"; + reg = <0x68>; + status = "okay"; + }; + }; + }; + + /* + * Values for input event code is found under the + * 'Keys and buttons' heading in include/uapi/linux/input.h + */ + fragment@7 { + target-path = "/soc"; + __overlay__ { + keypad: keypad { + compatible = "gpio-keys"; + #address-cells = <1>; + #size-cells = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&keypad_pins>; + status = "disabled"; + autorepeat; + + button@17 { + label = "GPIO KEY_UP"; + linux,code = <103>; + gpios = <&gpio 17 0>; + }; + button@22 { + label = "GPIO KEY_DOWN"; + linux,code = <108>; + gpios = <&gpio 22 0>; + }; + button@27 { + label = "GPIO KEY_LEFT"; + linux,code = <105>; + gpios = <&gpio 27 0>; + }; + button@23 { + label = "GPIO KEY_RIGHT"; + linux,code = <106>; + gpios = <&gpio 23 0>; + }; + button@4 { + label = "GPIO KEY_ENTER"; + linux,code = <28>; + gpios = <&gpio 4 0>; + }; + }; + }; + }; + + __overrides__ { + speed = <&tinylcd35>,"spi-max-frequency:0"; + rotate = <&tinylcd35>,"rotate:0"; + fps = <&tinylcd35>,"fps:0"; + debug = <&tinylcd35>,"debug:0"; + touch = <&tinylcd35_ts>,"status"; + touchgpio = <&tinylcd35_ts_pins>,"brcm,pins:0", + <&tinylcd35_ts>,"interrupts:0", + <&tinylcd35_ts>,"pendown-gpio:4"; + xohms = <&tinylcd35_ts>,"ti,x-plate-ohms;0"; + rtc-pcf = <0>,"=5"; + rtc-ds = <0>,"=6"; + keypad = <&keypad>,"status"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/uart1-overlay.dts b/arch/arm/boot/dts/overlays/uart1-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..fa73e1feaeb1bf53a6755e81a998e71cd8c7eda9 --- /dev/null +++ b/arch/arm/boot/dts/overlays/uart1-overlay.dts @@ -0,0 +1,38 @@ +/dts-v1/; +/plugin/; + +/{ + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&uart1>; + __overlay__ { + pinctrl-names = "default"; + pinctrl-0 = <&uart1_pins>; + status = "okay"; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + uart1_pins: uart1_pins { + brcm,pins = <14 15>; + brcm,function = <2>; /* alt5 */ + brcm,pull = <0 2>; + }; + }; + }; + + fragment@2 { + target-path = "/chosen"; + __overlay__ { + bootargs = "8250.nr_uarts=1"; + }; + }; + + __overrides__ { + txd1_pin = <&uart1_pins>,"brcm,pins:0"; + rxd1_pin = <&uart1_pins>,"brcm,pins:4"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/vc4-fkms-v3d-overlay.dts b/arch/arm/boot/dts/overlays/vc4-fkms-v3d-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..95a595a35cb4fbb707bf4b18161f6a46860aa4ae --- /dev/null +++ b/arch/arm/boot/dts/overlays/vc4-fkms-v3d-overlay.dts @@ -0,0 +1,89 @@ +/* + * vc4-fkms-v3d-overlay.dts + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target-path = "/chosen"; + __overlay__ { + bootargs = "cma=256M@256M"; + }; + }; + + fragment@1 { + target-path = "/chosen"; + __dormant__ { + bootargs = "cma=192M@256M"; + }; + }; + + fragment@2 { + target-path = "/chosen"; + __dormant__ { + bootargs = "cma=128M@128M"; + }; + }; + + fragment@3 { + target-path = "/chosen"; + __dormant__ { + bootargs = "cma=96M@128M"; + }; + }; + + fragment@4 { + target-path = "/chosen"; + __dormant__ { + bootargs = "cma=64M@64M"; + }; + }; + + fragment@5 { + target = <&fb>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@6 { + target = <&firmwarekms>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@7 { + target = <&v3d>; + __overlay__ { + interrupts = <1 10>; + status = "okay"; + }; + }; + + fragment@8 { + target = <&gpu>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@9 { + target-path = "/soc/dma"; + __overlay__ { + brcm,dma-channel-mask = <0x7f35>; + }; + }; + + __overrides__ { + cma-256 = <0>,"+0-1-2-3-4"; + cma-192 = <0>,"-0+1-2-3-4"; + cma-128 = <0>,"-0-1+2-3-4"; + cma-96 = <0>,"-0-1-2+3-4"; + cma-64 = <0>,"-0-1-2-3+4"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts b/arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..fb45c6456b181b047d6cff8784f7696eb75da3c7 --- /dev/null +++ b/arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts @@ -0,0 +1,151 @@ +/* + * vc4-kms-v3d-overlay.dts + */ + +/dts-v1/; +/plugin/; + +#include + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target-path = "/chosen"; + __overlay__ { + bootargs = "cma=256M@256M"; + }; + }; + + fragment@1 { + target-path = "/chosen"; + __dormant__ { + bootargs = "cma=192M@256M"; + }; + }; + + fragment@2 { + target-path = "/chosen"; + __dormant__ { + bootargs = "cma=128M@128M"; + }; + }; + + fragment@3 { + target-path = "/chosen"; + __dormant__ { + bootargs = "cma=96M@128M"; + }; + }; + + fragment@4 { + target-path = "/chosen"; + __dormant__ { + bootargs = "cma=64M@64M"; + }; + }; + + fragment@5 { + target = <&i2c2>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@6 { + target = <&cprman>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@7 { + target = <&fb>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@8 { + target = <&pixelvalve0>; + __overlay__ { + interrupts = <2 13>; /* pwa0 */ + status = "okay"; + }; + }; + + fragment@9 { + target = <&pixelvalve1>; + __overlay__ { + interrupts = <2 14>; /* pwa1 */ + status = "okay"; + }; + }; + + fragment@10 { + target = <&pixelvalve2>; + __overlay__ { + interrupts = <2 10>; /* pixelvalve */ + status = "okay"; + }; + }; + + fragment@11 { + target = <&hvs>; + __overlay__ { + interrupts = <2 1>; + status = "okay"; + }; + }; + + fragment@12 { + target = <&hdmi>; + __overlay__ { + interrupts = <2 8>, <2 9>; + status = "okay"; + }; + }; + + fragment@13 { + target = <&v3d>; + __overlay__ { + interrupts = <1 10>; + status = "okay"; + }; + }; + + fragment@14 { + target = <&gpu>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@15 { + target-path = "/soc/dma"; + __overlay__ { + brcm,dma-channel-mask = <0x7f35>; + }; + }; + + + fragment@16 { + target = <&clocks>; + __overlay__ { + claim-clocks = < + BCM2835_PLLD_DSI0 + BCM2835_PLLD_DSI1 + BCM2835_PLLH_AUX + BCM2835_PLLH_PIX + >; + }; + }; + + __overrides__ { + cma-256 = <0>,"+0-1-2-3-4"; + cma-192 = <0>,"-0+1-2-3-4"; + cma-128 = <0>,"-0-1+2-3-4"; + cma-96 = <0>,"-0-1-2+3-4"; + cma-64 = <0>,"-0-1-2-3+4"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/vga666-overlay.dts b/arch/arm/boot/dts/overlays/vga666-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..7fcab963eb4aed4b9edea94c9e60deb7650e0eb5 --- /dev/null +++ b/arch/arm/boot/dts/overlays/vga666-overlay.dts @@ -0,0 +1,30 @@ +/dts-v1/; +/plugin/; + +/{ + compatible = "brcm,bcm2708"; + + // There is no VGA driver module, but we need a platform device + // node (that doesn't already use pinctrl) to hang the pinctrl + // reference on - leds will do + + fragment@0 { + target = <&leds>; + __overlay__ { + pinctrl-names = "default"; + pinctrl-0 = <&vga666_pins>; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + vga666_pins: vga666_pins { + brcm,pins = <2 3 4 5 6 7 8 9 10 11 12 + 13 14 15 16 17 18 19 20 21>; + brcm,function = <6>; /* alt2 */ + brcm,pull = <0>; /* no pull */ + }; + }; + }; +}; diff --git a/arch/arm/boot/dts/overlays/w1-gpio-overlay.dts b/arch/arm/boot/dts/overlays/w1-gpio-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..29a3b48d19ab36b814c09e4cc4eef6d9e2022da1 --- /dev/null +++ b/arch/arm/boot/dts/overlays/w1-gpio-overlay.dts @@ -0,0 +1,39 @@ +// Definitions for w1-gpio module (without external pullup) +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target-path = "/"; + __overlay__ { + + w1: onewire@0 { + compatible = "w1-gpio"; + pinctrl-names = "default"; + pinctrl-0 = <&w1_pins>; + gpios = <&gpio 4 0>; + rpi,parasitic-power = <0>; + status = "okay"; + }; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + w1_pins: w1_pins { + brcm,pins = <4>; + brcm,function = <0>; // in (initially) + brcm,pull = <0>; // off + }; + }; + }; + + __overrides__ { + gpiopin = <&w1>,"gpios:4", + <&w1_pins>,"brcm,pins:0"; + pullup = <&w1>,"rpi,parasitic-power:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/w1-gpio-pullup-overlay.dts b/arch/arm/boot/dts/overlays/w1-gpio-pullup-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..66a98f6c9601f51483f27803995bec772bb3350e --- /dev/null +++ b/arch/arm/boot/dts/overlays/w1-gpio-pullup-overlay.dts @@ -0,0 +1,41 @@ +// Definitions for w1-gpio module (with external pullup) +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target-path = "/"; + __overlay__ { + + w1: onewire@0 { + compatible = "w1-gpio"; + pinctrl-names = "default"; + pinctrl-0 = <&w1_pins>; + gpios = <&gpio 4 0>, <&gpio 5 1>; + rpi,parasitic-power = <0>; + status = "okay"; + }; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + w1_pins: w1_pins { + brcm,pins = <4 5>; + brcm,function = <0 1>; // in out + brcm,pull = <0 0>; // off off + }; + }; + }; + + __overrides__ { + gpiopin = <&w1>,"gpios:4", + <&w1_pins>,"brcm,pins:0"; + extpullup = <&w1>,"gpios:16", + <&w1_pins>,"brcm,pins:4"; + pullup = <&w1>,"rpi,parasitic-power:0"; + }; +}; diff --git a/arch/arm/boot/dts/overlays/wittypi-overlay.dts b/arch/arm/boot/dts/overlays/wittypi-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..8498134fdbb3912e9ce18282b53084d871a82370 --- /dev/null +++ b/arch/arm/boot/dts/overlays/wittypi-overlay.dts @@ -0,0 +1,44 @@ +/* + * Device Tree overlay for Witty Pi extension board by UUGear + * + */ + +/dts-v1/; +/plugin/; + +/ { + + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&leds>; + __overlay__ { + compatible = "gpio-leds"; + wittypi_led: wittypi_led { + label = "wittypi_led"; + linux,default-trigger = "default-on"; + gpios = <&gpio 17 0>; + }; + }; + }; + + fragment@1 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + + rtc: ds1337@68 { + compatible = "dallas,ds1337"; + reg = <0x68>; + wakeup-source; + }; + }; + }; + + __overrides__ { + led_gpio = <&wittypi_led>,"gpios:4"; + led_trigger = <&wittypi_led>,"linux,default-trigger"; + }; + +}; diff --git a/scripts/Makefile.dtbinst b/scripts/Makefile.dtbinst index a1be75d0a5fd3fbf4742e555046896ea6fa6fe65..ad8dc1c93d04bc929b551c5a47f67d244116c7e7 100644 --- a/scripts/Makefile.dtbinst +++ b/scripts/Makefile.dtbinst @@ -27,6 +27,7 @@ ifeq ("$(dtbinst-root)", "$(obj)") endif dtbinst-files := $(dtb-y) +dtboinst-files := $(dtbo-y) dtbinst-dirs := $(dts-dirs) # Helper targets for Installing DTBs into the boot directory @@ -35,15 +36,18 @@ quiet_cmd_dtb_install = INSTALL $< install-dir = $(patsubst $(dtbinst-root)%,$(INSTALL_DTBS_PATH)%,$(obj)) -$(dtbinst-files) $(dtbinst-dirs): | __dtbs_install_prep +$(dtbinst-files) $(dtboinst-files) $(dtbinst-dirs): | __dtbs_install_prep $(dtbinst-files): %.dtb: $(obj)/%.dtb $(call cmd,dtb_install,$(install-dir)) +$(dtboinst-files): %.dtbo: $(obj)/%.dtbo + $(call cmd,dtb_install,$(install-dir)) + $(dtbinst-dirs): $(Q)$(MAKE) $(dtbinst)=$(obj)/$@ -PHONY += $(dtbinst-files) $(dtbinst-dirs) -__dtbs_install: $(dtbinst-files) $(dtbinst-dirs) +PHONY += $(dtbinst-files) $(dtboinst-files) $(dtbinst-dirs) +__dtbs_install: $(dtbinst-files) $(dtboinst-files) $(dtbinst-dirs) .PHONY: $(PHONY) diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index 7234e61e7ce370a775ec6981b391b6d102a01770..1b53cd59e4875d388e4974a3399d5f07df880280 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -312,6 +312,17 @@ cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \ $(obj)/%.dtb: $(src)/%.dts FORCE $(call if_changed_dep,dtc) +quiet_cmd_dtco = DTCO $@ +cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \ + $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \ + $(DTC) -@ -H epapr -O dtb -o $@ -b 0 \ + -i $(dir $<) $(DTC_FLAGS) \ + -d $(depfile).dtc.tmp $(dtc-tmp) ; \ + cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile) + +$(obj)/%.dtbo: $(src)/%-overlay.dts FORCE + $(call if_changed_dep,dtco) + dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp) # Bzip2 From 86e429ede242de1e764cfcaf0a81bf7970745da7 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Fri, 6 Feb 2015 13:50:57 +0000 Subject: [PATCH 057/165] BCM270x_DT: Add pwr_led, and the required "input" trigger The "input" trigger makes the associated GPIO an input. This is to support the Raspberry Pi PWR LED, which is driven by external hardware in normal use. N.B. pwr_led is not available on Model A or B boards. leds-gpio: Implement the brightness_get method The power LED uses some clever logic that means it is driven by a voltage measuring circuit when configured as input, otherwise it is driven by the GPIO output value. This patch wires up the brightness_get method for leds-gpio so that user-space can monitor the LED value via /sys/class/gpio/led1/brightness. Using the input trigger this returns an indication of the system power health, otherwise it is just whatever value the trigger has written most recently. See: https://github.com/raspberrypi/linux/issues/1064 --- drivers/leds/leds-gpio.c | 18 +++++++++++- drivers/leds/trigger/Kconfig | 7 +++++ drivers/leds/trigger/Makefile | 1 + drivers/leds/trigger/ledtrig-input.c | 54 ++++++++++++++++++++++++++++++++++++ include/linux/leds.h | 3 ++ 5 files changed, 82 insertions(+), 1 deletion(-) create mode 100644 drivers/leds/trigger/ledtrig-input.c diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c index 066fc75907299cc4ecd83bdf83f155c52e87cfb0..934cdb1d7bc7f12a4fb06a5c458ad76727c7b7c7 100644 --- a/drivers/leds/leds-gpio.c +++ b/drivers/leds/leds-gpio.c @@ -50,8 +50,15 @@ static void gpio_led_set(struct led_classdev *led_cdev, led_dat->platform_gpio_blink_set(led_dat->gpiod, level, NULL, NULL); led_dat->blinking = 0; + } else if (led_dat->cdev.flags & SET_GPIO_INPUT) { + gpiod_direction_input(led_dat->gpiod); + led_dat->cdev.flags &= ~SET_GPIO_INPUT; + } else if (led_dat->cdev.flags & SET_GPIO_OUTPUT) { + gpiod_direction_output(led_dat->gpiod, level); + led_dat->cdev.flags &= ~SET_GPIO_OUTPUT; } else { - if (led_dat->can_sleep) + if (led_dat->can_sleep || + (led_dat->cdev.flags & (SET_GPIO_INPUT | SET_GPIO_OUTPUT) )) gpiod_set_value_cansleep(led_dat->gpiod, level); else gpiod_set_value(led_dat->gpiod, level); @@ -65,6 +72,13 @@ static int gpio_led_set_blocking(struct led_classdev *led_cdev, return 0; } +static enum led_brightness gpio_led_get(struct led_classdev *led_cdev) +{ + struct gpio_led_data *led_dat = + container_of(led_cdev, struct gpio_led_data, cdev); + return gpiod_get_value_cansleep(led_dat->gpiod) ? LED_FULL : LED_OFF; +} + static int gpio_blink_set(struct led_classdev *led_cdev, unsigned long *delay_on, unsigned long *delay_off) { @@ -122,6 +136,8 @@ static int create_gpio_led(const struct gpio_led *template, led_dat->platform_gpio_blink_set = blink_set; led_dat->cdev.blink_set = gpio_blink_set; } + led_dat->cdev.brightness_set = gpio_led_set; + led_dat->cdev.brightness_get = gpio_led_get; if (template->default_state == LEDS_GPIO_DEFSTATE_KEEP) { state = gpiod_get_value_cansleep(led_dat->gpiod); if (state < 0) diff --git a/drivers/leds/trigger/Kconfig b/drivers/leds/trigger/Kconfig index 3f9ddb9fafa77f1f1fe5535c5e947838761e4f35..c1b6c83f3b63f993452893f136c5da54d0ada8e7 100644 --- a/drivers/leds/trigger/Kconfig +++ b/drivers/leds/trigger/Kconfig @@ -116,6 +116,13 @@ config LEDS_TRIGGER_CAMERA This enables direct flash/torch on/off by the driver, kernel space. If unsure, say Y. +config LEDS_TRIGGER_INPUT + tristate "LED Input Trigger" + depends on LEDS_TRIGGERS + help + This allows the GPIOs assigned to be LEDs to be initialised to inputs. + If unsure, say Y. + config LEDS_TRIGGER_PANIC bool "LED Panic Trigger" depends on LEDS_TRIGGERS diff --git a/drivers/leds/trigger/Makefile b/drivers/leds/trigger/Makefile index a72c43cffebf43bc7ebfd1eb1103b9ccff73d075..51b90c46890872fd1b148ec748edce0e0ce8fee1 100644 --- a/drivers/leds/trigger/Makefile +++ b/drivers/leds/trigger/Makefile @@ -9,4 +9,5 @@ obj-$(CONFIG_LEDS_TRIGGER_CPU) += ledtrig-cpu.o obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON) += ledtrig-default-on.o obj-$(CONFIG_LEDS_TRIGGER_TRANSIENT) += ledtrig-transient.o obj-$(CONFIG_LEDS_TRIGGER_CAMERA) += ledtrig-camera.o +obj-$(CONFIG_LEDS_TRIGGER_INPUT) += ledtrig-input.o obj-$(CONFIG_LEDS_TRIGGER_PANIC) += ledtrig-panic.o diff --git a/drivers/leds/trigger/ledtrig-input.c b/drivers/leds/trigger/ledtrig-input.c new file mode 100644 index 0000000000000000000000000000000000000000..27f8ebea43d86fc51c98db5c953da05bae063e3b --- /dev/null +++ b/drivers/leds/trigger/ledtrig-input.c @@ -0,0 +1,54 @@ +/* + * Set LED GPIO to Input "Trigger" + * + * Copyright 2015 Phil Elwell + * + * Based on Nick Forbes's ledtrig-default-on.c. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include +#include +#include +#include +#include +#include "../leds.h" + +static void input_trig_activate(struct led_classdev *led_cdev) +{ + led_cdev->flags |= SET_GPIO_INPUT; + led_set_brightness(led_cdev, 0); +} + +static void input_trig_deactivate(struct led_classdev *led_cdev) +{ + led_cdev->flags |= SET_GPIO_OUTPUT; + led_set_brightness(led_cdev, 0); +} + +static struct led_trigger input_led_trigger = { + .name = "input", + .activate = input_trig_activate, + .deactivate = input_trig_deactivate, +}; + +static int __init input_trig_init(void) +{ + return led_trigger_register(&input_led_trigger); +} + +static void __exit input_trig_exit(void) +{ + led_trigger_unregister(&input_led_trigger); +} + +module_init(input_trig_init); +module_exit(input_trig_exit); + +MODULE_AUTHOR("Phil Elwell "); +MODULE_DESCRIPTION("Set LED GPIO to Input \"trigger\""); +MODULE_LICENSE("GPL"); diff --git a/include/linux/leds.h b/include/linux/leds.h index 38c0bd7ca1074af234d516275791d05f945ce1f0..2f026646d24bad617c73aa79db30c9aa1f2b0424 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -49,6 +49,9 @@ struct led_classdev { #define LED_HW_PLUGGABLE (1 << 19) #define LED_PANIC_INDICATOR (1 << 20) #define LED_BRIGHT_HW_CHANGED (1 << 21) + /* Additions for Raspberry Pi PWR LED */ +#define SET_GPIO_INPUT (1 << 30) +#define SET_GPIO_OUTPUT (1 << 31) /* set_brightness_work / blink_timer flags, atomic, private. */ unsigned long work_flags; From 217263cee115ee506f81005c377199f0fc8a924e Mon Sep 17 00:00:00 2001 From: Siarhei Siamashka Date: Mon, 17 Jun 2013 13:32:11 +0300 Subject: [PATCH 058/165] fbdev: add FBIOCOPYAREA ioctl Based on the patch authored by Ali Gholami Rudi at https://lkml.org/lkml/2009/7/13/153 Provide an ioctl for userspace applications, but only if this operation is hardware accelerated (otherwide it does not make any sense). Signed-off-by: Siarhei Siamashka bcm2708_fb: Add ioctl for reading gpu memory through dma --- drivers/video/fbdev/bcm2708_fb.c | 109 +++++++++++++++++++++++++++++++++++++++ drivers/video/fbdev/core/fbmem.c | 36 +++++++++++++ include/uapi/linux/fb.h | 12 +++++ 3 files changed, 157 insertions(+) diff --git a/drivers/video/fbdev/bcm2708_fb.c b/drivers/video/fbdev/bcm2708_fb.c index 37f60813fe1dd95d9f5f725c07ec2e75c09857bf..53c5a0bdadb4be9251affdabed66305842a08e72 100644 --- a/drivers/video/fbdev/bcm2708_fb.c +++ b/drivers/video/fbdev/bcm2708_fb.c @@ -31,8 +31,10 @@ #include #include #include +#include #include #include +#include #include //#define BCM2708_FB_DEBUG @@ -426,6 +428,110 @@ static int bcm2708_fb_pan_display(struct fb_var_screeninfo *var, struct fb_info return result; } +static void dma_memcpy(struct bcm2708_fb *fb, dma_addr_t dst, dma_addr_t src, int size) +{ + int burst_size = (fb->dma_chan == 0) ? 8 : 2; + struct bcm2708_dma_cb *cb = fb->cb_base; + + cb->info = BCM2708_DMA_BURST(burst_size) | BCM2708_DMA_S_WIDTH | + BCM2708_DMA_S_INC | BCM2708_DMA_D_WIDTH | + BCM2708_DMA_D_INC; + cb->dst = dst; + cb->src = src; + cb->length = size; + cb->stride = 0; + cb->pad[0] = 0; + cb->pad[1] = 0; + cb->next = 0; + + if (size < dma_busy_wait_threshold) { + bcm_dma_start(fb->dma_chan_base, fb->cb_handle); + bcm_dma_wait_idle(fb->dma_chan_base); + } else { + void __iomem *dma_chan = fb->dma_chan_base; + cb->info |= BCM2708_DMA_INT_EN; + bcm_dma_start(fb->dma_chan_base, fb->cb_handle); + while (bcm_dma_is_busy(dma_chan)) { + wait_event_interruptible( + fb->dma_waitq, + !bcm_dma_is_busy(dma_chan)); + } + fb->stats.dma_irqs++; + } + fb->stats.dma_copies++; +} + +#define INTALIAS_NORMAL(x) ((x)&~0xc0000000) // address with no aliases +#define INTALIAS_L1L2_NONALLOCATING(x) (((x)&~0xc0000000)|0x80000000) // cache coherent but non-allocating in L1 and L2 + +static long vc_mem_copy(struct bcm2708_fb *fb, unsigned long arg) +{ + struct fb_dmacopy ioparam; + size_t size = PAGE_SIZE; + u32 *buf = NULL; + dma_addr_t bus_addr; + long rc = 0; + size_t offset; + struct { u32 base, length; } gpu = {}; + + /* restrict this to root user */ + if (!uid_eq(current_euid(), GLOBAL_ROOT_UID)) + { + rc = -EFAULT; + goto out; + } + + /* Get the parameter data. + */ + if (copy_from_user + (&ioparam, (void *)arg, sizeof(ioparam)) != 0) { + pr_err("[%s]: failed to copy-from-user\n", + __func__); + rc = -EFAULT; + goto out; + } + + rc = rpi_firmware_property(fb->fw, + RPI_FIRMWARE_GET_VC_MEMORY, + &gpu, sizeof(gpu)); + if (rc != 0 || gpu.base == 0 || gpu.length == 0) { + pr_err("[%s]: Unable to determine gpu memory %ld,%x,%x)\n", __func__, rc, gpu.base, gpu.length); + return -EFAULT; + } + + if (INTALIAS_NORMAL(ioparam.src) < gpu.base || INTALIAS_NORMAL(ioparam.src) >= gpu.base + gpu.length) { + pr_err("[%s]: Invalid memory access %x (%x-%x)", __func__, INTALIAS_NORMAL(ioparam.src), gpu.base, gpu.base + gpu.length); + return -EFAULT; + } + + buf = dma_alloc_coherent(fb->fb.device, PAGE_ALIGN(size), &bus_addr, + GFP_ATOMIC); + if (!buf) { + pr_err("[%s]: failed to dma_alloc_coherent(%d)\n", + __func__, size); + rc = -ENOMEM; + goto out; + } + + for (offset = 0; offset < ioparam.length; offset += size) { + size_t remaining = ioparam.length - offset; + size_t s = min(size, remaining); + unsigned char *p = (unsigned char *)ioparam.src + offset; + unsigned char *q = (unsigned char *)ioparam.dst + offset; + dma_memcpy(fb, bus_addr, INTALIAS_L1L2_NONALLOCATING((dma_addr_t)p), size); + if (copy_to_user(q, buf, s) != 0) { + pr_err("[%s]: failed to copy-to-user\n", + __func__); + rc = -EFAULT; + goto out; + } + } +out: + if (buf) + dma_free_coherent(fb->fb.device, PAGE_ALIGN(size), buf, bus_addr); + return rc; +} + static int bcm2708_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) { struct bcm2708_fb *fb = to_bcm2708(info); @@ -438,6 +544,9 @@ static int bcm2708_ioctl(struct fb_info *info, unsigned int cmd, unsigned long a RPI_FIRMWARE_FRAMEBUFFER_SET_VSYNC, &dummy, sizeof(dummy)); break; + case FBIODMACOPY: + ret = vc_mem_copy(fb, arg); + break; default: dev_dbg(info->device, "Unknown ioctl 0x%x\n", cmd); return -ENOTTY; diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c index 069fe7960df1cedd17c3f7119d2ab6a6989e46c1..2577fca6a93954a499d8b2f94e6a70967874ded2 100644 --- a/drivers/video/fbdev/core/fbmem.c +++ b/drivers/video/fbdev/core/fbmem.c @@ -1084,6 +1084,31 @@ fb_blank(struct fb_info *info, int blank) } EXPORT_SYMBOL(fb_blank); +static int fb_copyarea_user(struct fb_info *info, + struct fb_copyarea *copy) +{ + int ret = 0; + if (!lock_fb_info(info)) + return -ENODEV; + if (copy->dx >= info->var.xres || + copy->sx >= info->var.xres || + copy->width > info->var.xres || + copy->dy >= info->var.yres || + copy->sy >= info->var.yres || + copy->height > info->var.yres || + copy->dx + copy->width > info->var.xres || + copy->sx + copy->width > info->var.xres || + copy->dy + copy->height > info->var.yres || + copy->sy + copy->height > info->var.yres) { + ret = -EINVAL; + goto out; + } + info->fbops->fb_copyarea(info, copy); +out: + unlock_fb_info(info); + return ret; +} + static long do_fb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) { @@ -1094,6 +1119,7 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd, struct fb_cmap cmap_from; struct fb_cmap_user cmap; struct fb_event event; + struct fb_copyarea copy; void __user *argp = (void __user *)arg; long ret = 0; @@ -1211,6 +1237,15 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd, unlock_fb_info(info); console_unlock(); break; + case FBIOCOPYAREA: + if (info->flags & FBINFO_HWACCEL_COPYAREA) { + /* only provide this ioctl if it is accelerated */ + if (copy_from_user(©, argp, sizeof(copy))) + return -EFAULT; + ret = fb_copyarea_user(info, ©); + break; + } + /* fall through */ default: if (!lock_fb_info(info)) return -ENODEV; @@ -1365,6 +1400,7 @@ static long fb_compat_ioctl(struct file *file, unsigned int cmd, case FBIOPAN_DISPLAY: case FBIOGET_CON2FBMAP: case FBIOPUT_CON2FBMAP: + case FBIOCOPYAREA: arg = (unsigned long) compat_ptr(arg); case FBIOBLANK: ret = do_fb_ioctl(info, cmd, arg); diff --git a/include/uapi/linux/fb.h b/include/uapi/linux/fb.h index fb795c3b3c178ad3cd7c9e9e4547ffd492bac181..703fa8a70574323abe2fb32599254582cd5d891f 100644 --- a/include/uapi/linux/fb.h +++ b/include/uapi/linux/fb.h @@ -34,6 +34,12 @@ #define FBIOPUT_MODEINFO 0x4617 #define FBIOGET_DISPINFO 0x4618 #define FBIO_WAITFORVSYNC _IOW('F', 0x20, __u32) +/* + * HACK: use 'z' in order not to clash with any other ioctl numbers which might + * be concurrently added to the mainline kernel + */ +#define FBIOCOPYAREA _IOW('z', 0x21, struct fb_copyarea) +#define FBIODMACOPY _IOW('z', 0x22, struct fb_dmacopy) #define FB_TYPE_PACKED_PIXELS 0 /* Packed Pixels */ #define FB_TYPE_PLANES 1 /* Non interleaved planes */ @@ -346,6 +352,12 @@ struct fb_copyarea { __u32 sy; }; +struct fb_dmacopy { + void *dst; + __u32 src; + __u32 length; +}; + struct fb_fillrect { __u32 dx; /* screen-relative */ __u32 dy; From a6204ae1aa4ec42e8712b978bb1861d6a86a7579 Mon Sep 17 00:00:00 2001 From: Harm Hanemaaijer Date: Thu, 20 Jun 2013 20:21:39 +0200 Subject: [PATCH 059/165] Speed up console framebuffer imageblit function Especially on platforms with a slower CPU but a relatively high framebuffer fill bandwidth, like current ARM devices, the existing console monochrome imageblit function used to draw console text is suboptimal for common pixel depths such as 16bpp and 32bpp. The existing code is quite general and can deal with several pixel depths. By creating special case functions for 16bpp and 32bpp, by far the most common pixel formats used on modern systems, a significant speed-up is attained which can be readily felt on ARM-based devices like the Raspberry Pi and the Allwinner platform, but should help any platform using the fb layer. The special case functions allow constant folding, eliminating a number of instructions including divide operations, and allow the use of an unrolled loop, eliminating instructions with a variable shift size, reducing source memory access instructions, and eliminating excessive branching. These unrolled loops also allow much better code optimization by the C compiler. The code that selects which optimized variant is used is also simplified, eliminating integer divide instructions. The speed-up, measured by timing 'cat file.txt' in the console, varies between 40% and 70%, when testing on the Raspberry Pi and Allwinner ARM-based platforms, depending on font size and the pixel depth, with the greater benefit for 32bpp. Signed-off-by: Harm Hanemaaijer --- drivers/video/fbdev/core/cfbimgblt.c | 152 +++++++++++++++++++++++++++++++++-- 1 file changed, 147 insertions(+), 5 deletions(-) diff --git a/drivers/video/fbdev/core/cfbimgblt.c b/drivers/video/fbdev/core/cfbimgblt.c index a2bb276a8b2463eee98eb237c4647bc00cd93601..436494fba15abecb400ef28688466fafb10feb95 100644 --- a/drivers/video/fbdev/core/cfbimgblt.c +++ b/drivers/video/fbdev/core/cfbimgblt.c @@ -28,6 +28,11 @@ * * Also need to add code to deal with cards endians that are different than * the native cpu endians. I also need to deal with MSB position in the word. + * Modified by Harm Hanemaaijer (fgenfb@yahoo.com) 2013: + * - Provide optimized versions of fast_imageblit for 16 and 32bpp that are + * significantly faster than the previous implementation. + * - Simplify the fast/slow_imageblit selection code, avoiding integer + * divides. */ #include #include @@ -262,6 +267,133 @@ static inline void fast_imageblit(const struct fb_image *image, struct fb_info * } } +/* + * Optimized fast_imageblit for bpp == 16. ppw = 2, bit_mask = 3 folded + * into the code, main loop unrolled. + */ + +static inline void fast_imageblit16(const struct fb_image *image, + struct fb_info *p, u8 __iomem * dst1, + u32 fgcolor, u32 bgcolor) +{ + u32 fgx = fgcolor, bgx = bgcolor; + u32 spitch = (image->width + 7) / 8; + u32 end_mask, eorx; + const char *s = image->data, *src; + u32 __iomem *dst; + const u32 *tab = NULL; + int i, j, k; + + tab = fb_be_math(p) ? cfb_tab16_be : cfb_tab16_le; + + fgx <<= 16; + bgx <<= 16; + fgx |= fgcolor; + bgx |= bgcolor; + + eorx = fgx ^ bgx; + k = image->width / 2; + + for (i = image->height; i--;) { + dst = (u32 __iomem *) dst1; + src = s; + + j = k; + while (j >= 4) { + u8 bits = *src; + end_mask = tab[(bits >> 6) & 3]; + FB_WRITEL((end_mask & eorx) ^ bgx, dst++); + end_mask = tab[(bits >> 4) & 3]; + FB_WRITEL((end_mask & eorx) ^ bgx, dst++); + end_mask = tab[(bits >> 2) & 3]; + FB_WRITEL((end_mask & eorx) ^ bgx, dst++); + end_mask = tab[bits & 3]; + FB_WRITEL((end_mask & eorx) ^ bgx, dst++); + src++; + j -= 4; + } + if (j != 0) { + u8 bits = *src; + end_mask = tab[(bits >> 6) & 3]; + FB_WRITEL((end_mask & eorx) ^ bgx, dst++); + if (j >= 2) { + end_mask = tab[(bits >> 4) & 3]; + FB_WRITEL((end_mask & eorx) ^ bgx, dst++); + if (j == 3) { + end_mask = tab[(bits >> 2) & 3]; + FB_WRITEL((end_mask & eorx) ^ bgx, dst); + } + } + } + dst1 += p->fix.line_length; + s += spitch; + } +} + +/* + * Optimized fast_imageblit for bpp == 32. ppw = 1, bit_mask = 1 folded + * into the code, main loop unrolled. + */ + +static inline void fast_imageblit32(const struct fb_image *image, + struct fb_info *p, u8 __iomem * dst1, + u32 fgcolor, u32 bgcolor) +{ + u32 fgx = fgcolor, bgx = bgcolor; + u32 spitch = (image->width + 7) / 8; + u32 end_mask, eorx; + const char *s = image->data, *src; + u32 __iomem *dst; + const u32 *tab = NULL; + int i, j, k; + + tab = cfb_tab32; + + eorx = fgx ^ bgx; + k = image->width; + + for (i = image->height; i--;) { + dst = (u32 __iomem *) dst1; + src = s; + + j = k; + while (j >= 8) { + u8 bits = *src; + end_mask = tab[(bits >> 7) & 1]; + FB_WRITEL((end_mask & eorx) ^ bgx, dst++); + end_mask = tab[(bits >> 6) & 1]; + FB_WRITEL((end_mask & eorx) ^ bgx, dst++); + end_mask = tab[(bits >> 5) & 1]; + FB_WRITEL((end_mask & eorx) ^ bgx, dst++); + end_mask = tab[(bits >> 4) & 1]; + FB_WRITEL((end_mask & eorx) ^ bgx, dst++); + end_mask = tab[(bits >> 3) & 1]; + FB_WRITEL((end_mask & eorx) ^ bgx, dst++); + end_mask = tab[(bits >> 2) & 1]; + FB_WRITEL((end_mask & eorx) ^ bgx, dst++); + end_mask = tab[(bits >> 1) & 1]; + FB_WRITEL((end_mask & eorx) ^ bgx, dst++); + end_mask = tab[bits & 1]; + FB_WRITEL((end_mask & eorx) ^ bgx, dst++); + src++; + j -= 8; + } + if (j != 0) { + u32 bits = (u32) * src; + while (j > 1) { + end_mask = tab[(bits >> 7) & 1]; + FB_WRITEL((end_mask & eorx) ^ bgx, dst++); + bits <<= 1; + j--; + } + end_mask = tab[(bits >> 7) & 1]; + FB_WRITEL((end_mask & eorx) ^ bgx, dst); + } + dst1 += p->fix.line_length; + s += spitch; + } +} + void cfb_imageblit(struct fb_info *p, const struct fb_image *image) { u32 fgcolor, bgcolor, start_index, bitstart, pitch_index = 0; @@ -294,11 +426,21 @@ void cfb_imageblit(struct fb_info *p, const struct fb_image *image) bgcolor = image->bg_color; } - if (32 % bpp == 0 && !start_index && !pitch_index && - ((width & (32/bpp-1)) == 0) && - bpp >= 8 && bpp <= 32) - fast_imageblit(image, p, dst1, fgcolor, bgcolor); - else + if (!start_index && !pitch_index) { + if (bpp == 32) + fast_imageblit32(image, p, dst1, fgcolor, + bgcolor); + else if (bpp == 16 && (width & 1) == 0) + fast_imageblit16(image, p, dst1, fgcolor, + bgcolor); + else if (bpp == 8 && (width & 3) == 0) + fast_imageblit(image, p, dst1, fgcolor, + bgcolor); + else + slow_imageblit(image, p, dst1, fgcolor, + bgcolor, + start_index, pitch_index); + } else slow_imageblit(image, p, dst1, fgcolor, bgcolor, start_index, pitch_index); } else From f1700c6ad46b4119d0fb8266ebc281fd7f41a252 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Wed, 8 May 2013 11:46:50 +0100 Subject: [PATCH 060/165] enabling the realtime clock 1-wire chip DS1307 and 1-wire on GPIO4 (as a module) 1-wire: Add support for configuring pin for w1-gpio kernel module See: https://github.com/raspberrypi/linux/pull/457 Add bitbanging pullups, use them for w1-gpio Allows parasite power to work, uses module option pullup=1 bcm2708: Ensure 1-wire pullup is disabled by default, and expose as module parameter Signed-off-by: Alex J Lennon w1-gpio: Add gpiopin module parameter and correctly free up gpio pull-up pin, if set Signed-off-by: Alex J Lennon w1-gpio: Sort out the pullup/parasitic power tangle --- drivers/w1/masters/w1-gpio.c | 69 ++++++++++++++++++++++++++++++++++++++++---- drivers/w1/w1.h | 6 ++++ drivers/w1/w1_int.c | 14 +++++++++ drivers/w1/w1_io.c | 18 ++++++++++-- include/linux/w1-gpio.h | 1 + 5 files changed, 99 insertions(+), 9 deletions(-) diff --git a/drivers/w1/masters/w1-gpio.c b/drivers/w1/masters/w1-gpio.c index a373ae69d9f6ef8a5925dbd5004cd5e9b8fc5c05..080e5976e2a6b75965ed753ddf29648cb0b2f000 100644 --- a/drivers/w1/masters/w1-gpio.c +++ b/drivers/w1/masters/w1-gpio.c @@ -23,6 +23,19 @@ #include "../w1.h" #include "../w1_int.h" +static int w1_gpio_pullup = 0; +static int w1_gpio_pullup_orig = 0; +module_param_named(pullup, w1_gpio_pullup, int, 0); +MODULE_PARM_DESC(pullup, "Enable parasitic power (power on data) mode"); +static int w1_gpio_pullup_pin = -1; +static int w1_gpio_pullup_pin_orig = -1; +module_param_named(extpullup, w1_gpio_pullup_pin, int, 0); +MODULE_PARM_DESC(extpullup, "GPIO external pullup pin number"); +static int w1_gpio_pin = -1; +static int w1_gpio_pin_orig = -1; +module_param_named(gpiopin, w1_gpio_pin, int, 0); +MODULE_PARM_DESC(gpiopin, "GPIO pin number"); + static u8 w1_gpio_set_pullup(void *data, int delay) { struct w1_gpio_platform_data *pdata = data; @@ -67,6 +80,16 @@ static u8 w1_gpio_read_bit(void *data) return gpio_get_value(pdata->pin) ? 1 : 0; } +static void w1_gpio_bitbang_pullup(void *data, u8 on) +{ + struct w1_gpio_platform_data *pdata = data; + + if (on) + gpio_direction_output(pdata->pin, 1); + else + gpio_direction_input(pdata->pin); +} + #if defined(CONFIG_OF) static const struct of_device_id w1_gpio_dt_ids[] = { { .compatible = "w1-gpio" }, @@ -80,6 +103,7 @@ static int w1_gpio_probe_dt(struct platform_device *pdev) struct w1_gpio_platform_data *pdata = dev_get_platdata(&pdev->dev); struct device_node *np = pdev->dev.of_node; int gpio; + u32 value; pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) @@ -88,6 +112,9 @@ static int w1_gpio_probe_dt(struct platform_device *pdev) if (of_get_property(np, "linux,open-drain", NULL)) pdata->is_open_drain = 1; + if (of_property_read_u32(np, "rpi,parasitic-power", &value) == 0) + pdata->parasitic_power = (value != 0); + gpio = of_get_gpio(np, 0); if (gpio < 0) { if (gpio != -EPROBE_DEFER) @@ -103,7 +130,7 @@ static int w1_gpio_probe_dt(struct platform_device *pdev) if (gpio == -EPROBE_DEFER) return gpio; /* ignore other errors as the pullup gpio is optional */ - pdata->ext_pullup_enable_pin = gpio; + pdata->ext_pullup_enable_pin = (gpio >= 0) ? gpio : -1; pdev->dev.platform_data = pdata; @@ -113,13 +140,15 @@ static int w1_gpio_probe_dt(struct platform_device *pdev) static int w1_gpio_probe(struct platform_device *pdev) { struct w1_bus_master *master; - struct w1_gpio_platform_data *pdata; + struct w1_gpio_platform_data *pdata = pdev->dev.platform_data; int err; - if (of_have_populated_dt()) { - err = w1_gpio_probe_dt(pdev); - if (err < 0) - return err; + if(pdata == NULL) { + if (of_have_populated_dt()) { + err = w1_gpio_probe_dt(pdev); + if (err < 0) + return err; + } } pdata = dev_get_platdata(&pdev->dev); @@ -136,6 +165,22 @@ static int w1_gpio_probe(struct platform_device *pdev) return -ENOMEM; } + w1_gpio_pin_orig = pdata->pin; + w1_gpio_pullup_pin_orig = pdata->ext_pullup_enable_pin; + w1_gpio_pullup_orig = pdata->parasitic_power; + + if(gpio_is_valid(w1_gpio_pin)) { + pdata->pin = w1_gpio_pin; + pdata->ext_pullup_enable_pin = -1; + pdata->parasitic_power = -1; + } + pdata->parasitic_power |= w1_gpio_pullup; + if(gpio_is_valid(w1_gpio_pullup_pin)) { + pdata->ext_pullup_enable_pin = w1_gpio_pullup_pin; + } + + dev_info(&pdev->dev, "gpio pin %d, external pullup pin %d, parasitic power %d\n", pdata->pin, pdata->ext_pullup_enable_pin, pdata->parasitic_power); + err = devm_gpio_request(&pdev->dev, pdata->pin, "w1"); if (err) { dev_err(&pdev->dev, "gpio_request (pin) failed\n"); @@ -165,6 +210,14 @@ static int w1_gpio_probe(struct platform_device *pdev) master->set_pullup = w1_gpio_set_pullup; } + if (pdata->parasitic_power) { + if (pdata->is_open_drain) + printk(KERN_ERR "w1-gpio 'pullup'(parasitic power) " + "option doesn't work with open drain GPIO\n"); + else + master->bitbang_pullup = w1_gpio_bitbang_pullup; + } + err = w1_add_master_device(master); if (err) { dev_err(&pdev->dev, "w1_add_master device failed\n"); @@ -195,6 +248,10 @@ static int w1_gpio_remove(struct platform_device *pdev) w1_remove_master_device(master); + pdata->pin = w1_gpio_pin_orig; + pdata->ext_pullup_enable_pin = w1_gpio_pullup_pin_orig; + pdata->parasitic_power = w1_gpio_pullup_orig; + return 0; } diff --git a/drivers/w1/w1.h b/drivers/w1/w1.h index 758a7a6322e983d527c1f26e4262a5f853b877bc..a36f5becf27b8b07b22a0ab28d1edb9bb9ff4ac4 100644 --- a/drivers/w1/w1.h +++ b/drivers/w1/w1.h @@ -166,6 +166,12 @@ struct w1_bus_master u8 (*set_pullup)(void *, int); + /** + * Turns the pullup on/off in bitbanging mode, takes an on/off argument. + * @return -1=Error, 0=completed + */ + void (*bitbang_pullup) (void *, u8); + void (*search)(void *, struct w1_master *, u8, w1_slave_found_callback); }; diff --git a/drivers/w1/w1_int.c b/drivers/w1/w1_int.c index 2cae7b29bb5fb5b72803b9d82d65d636b130bacc..ad0779966ab207972e64be4b2d8eaf17204870f5 100644 --- a/drivers/w1/w1_int.c +++ b/drivers/w1/w1_int.c @@ -116,6 +116,20 @@ int w1_add_master_device(struct w1_bus_master *master) return(-EINVAL); } + /* bitbanging hardware uses bitbang_pullup, other hardware uses set_pullup + * and takes care of timing itself */ + if (!master->write_byte && !master->touch_bit && master->set_pullup) { + printk(KERN_ERR "w1_add_master_device: set_pullup requires " + "write_byte or touch_bit, disabling\n"); + master->set_pullup = NULL; + } + + if (master->set_pullup && master->bitbang_pullup) { + printk(KERN_ERR "w1_add_master_device: set_pullup should not " + "be set when bitbang_pullup is used, disabling\n"); + master->set_pullup = NULL; + } + /* Lock until the device is added (or not) to w1_masters. */ mutex_lock(&w1_mlock); /* Search for the first available id (starting at 1). */ diff --git a/drivers/w1/w1_io.c b/drivers/w1/w1_io.c index de8bebc278967552222d025dc143054af040a8af..ffb8184a33f6b4e932379aae19db8952b6d7c488 100644 --- a/drivers/w1/w1_io.c +++ b/drivers/w1/w1_io.c @@ -127,10 +127,22 @@ static void w1_pre_write(struct w1_master *dev) static void w1_post_write(struct w1_master *dev) { if (dev->pullup_duration) { - if (dev->enable_pullup && dev->bus_master->set_pullup) - dev->bus_master->set_pullup(dev->bus_master->data, 0); - else + if (dev->enable_pullup) { + if (dev->bus_master->set_pullup) { + dev->bus_master->set_pullup(dev-> + bus_master->data, + 0); + } else if (dev->bus_master->bitbang_pullup) { + dev->bus_master-> + bitbang_pullup(dev->bus_master->data, 1); + msleep(dev->pullup_duration); + dev->bus_master-> + bitbang_pullup(dev->bus_master->data, 0); + } + } else { msleep(dev->pullup_duration); + } + dev->pullup_duration = 0; } } diff --git a/include/linux/w1-gpio.h b/include/linux/w1-gpio.h index d58594a3232492e33f1dd4babd3798b03e0f0203..feae94256256316fd9d850c3d83325af803fb2ce 100644 --- a/include/linux/w1-gpio.h +++ b/include/linux/w1-gpio.h @@ -18,6 +18,7 @@ struct w1_gpio_platform_data { unsigned int pin; unsigned int is_open_drain:1; + unsigned int parasitic_power:1; void (*enable_external_pullup)(int enable); unsigned int ext_pullup_enable_pin; unsigned int pullup_duration; From 1d79f813e2a452b627e0959a3dae26d5fc546df2 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Mon, 14 Jul 2014 22:02:09 +0100 Subject: [PATCH 061/165] hid: Reduce default mouse polling interval to 60Hz Reduces overhead when using X --- drivers/hid/usbhid/hid-core.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c index 961bc6fdd2d908835fa9a07d169a4746fb44189d..c595188a1156a27aa79f111d81636b6d134ed6b2 100644 --- a/drivers/hid/usbhid/hid-core.c +++ b/drivers/hid/usbhid/hid-core.c @@ -48,7 +48,7 @@ * Module parameters. */ -static unsigned int hid_mousepoll_interval; +static unsigned int hid_mousepoll_interval = ~0; module_param_named(mousepoll, hid_mousepoll_interval, uint, 0644); MODULE_PARM_DESC(mousepoll, "Polling interval of mice"); @@ -1082,8 +1082,12 @@ static int usbhid_start(struct hid_device *hid) } /* Change the polling interval of mice. */ - if (hid->collection->usage == HID_GD_MOUSE && hid_mousepoll_interval > 0) - interval = hid_mousepoll_interval; + if (hid->collection->usage == HID_GD_MOUSE) { + if (hid_mousepoll_interval == ~0 && interval < 16) + interval = 16; + else if (hid_mousepoll_interval != ~0 && hid_mousepoll_interval != 0) + interval = hid_mousepoll_interval; + } ret = -ENOMEM; if (usb_endpoint_dir_in(endpoint)) { From 79655397b4bbc80f8d05ff0fddd3f98f19950eba Mon Sep 17 00:00:00 2001 From: Gordon Hollingworth Date: Tue, 12 May 2015 14:47:56 +0100 Subject: [PATCH 062/165] rpi-ft5406: Add touchscreen driver for pi LCD display Fix driver detection failure Check that the buffer response is non-zero meaning the touchscreen was detected rpi-ft5406: Use firmware API RPI-FT5406: Enable aarch64 support through explicit iomem interface Signed-off-by: Gerhard de Clercq --- drivers/input/touchscreen/Kconfig | 7 + drivers/input/touchscreen/Makefile | 1 + drivers/input/touchscreen/rpi-ft5406.c | 292 +++++++++++++++++++++++++++++ include/soc/bcm2835/raspberrypi-firmware.h | 1 + 4 files changed, 301 insertions(+) create mode 100644 drivers/input/touchscreen/rpi-ft5406.c diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 03359977765156edb0f8d00c04d51e8921358ef9..60504f240239901a50dc024ec46f7cdba8bebc79 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -626,6 +626,13 @@ config TOUCHSCREEN_EDT_FT5X06 To compile this driver as a module, choose M here: the module will be called edt-ft5x06. +config TOUCHSCREEN_RPI_FT5406 + tristate "Raspberry Pi FT5406 driver" + depends on RASPBERRYPI_FIRMWARE + help + Say Y here to enable the Raspberry Pi memory based FT5406 device + + config TOUCHSCREEN_MIGOR tristate "Renesas MIGO-R touchscreen" depends on (SH_MIGOR || COMPILE_TEST) && I2C diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index b622e53441376a7261fe42b1f82598b0aeb3126a..09db22757c88f89619929cc01e79e46c9a577550 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -29,6 +29,7 @@ obj-$(CONFIG_TOUCHSCREEN_DA9034) += da9034-ts.o obj-$(CONFIG_TOUCHSCREEN_DA9052) += da9052_tsi.o obj-$(CONFIG_TOUCHSCREEN_DYNAPRO) += dynapro.o obj-$(CONFIG_TOUCHSCREEN_EDT_FT5X06) += edt-ft5x06.o +obj-$(CONFIG_TOUCHSCREEN_RPI_FT5406) += rpi-ft5406.o obj-$(CONFIG_TOUCHSCREEN_HAMPSHIRE) += hampshire.o obj-$(CONFIG_TOUCHSCREEN_GUNZE) += gunze.o obj-$(CONFIG_TOUCHSCREEN_EETI) += eeti_ts.o diff --git a/drivers/input/touchscreen/rpi-ft5406.c b/drivers/input/touchscreen/rpi-ft5406.c new file mode 100644 index 0000000000000000000000000000000000000000..9d7d05482355d168c5c0c42508cd978979ee5f14 --- /dev/null +++ b/drivers/input/touchscreen/rpi-ft5406.c @@ -0,0 +1,292 @@ +/* + * Driver for memory based ft5406 touchscreen + * + * Copyright (C) 2015 Raspberry Pi + * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define MAXIMUM_SUPPORTED_POINTS 10 +struct ft5406_regs { + uint8_t device_mode; + uint8_t gesture_id; + uint8_t num_points; + struct ft5406_touch { + uint8_t xh; + uint8_t xl; + uint8_t yh; + uint8_t yl; + uint8_t res1; + uint8_t res2; + } point[MAXIMUM_SUPPORTED_POINTS]; +}; + +#define SCREEN_WIDTH 800 +#define SCREEN_HEIGHT 480 + +struct ft5406 { + struct platform_device * pdev; + struct input_dev * input_dev; + void __iomem * ts_base; + dma_addr_t bus_addr; + struct task_struct * thread; +}; + +/* Thread to poll for touchscreen events + * + * This thread polls the memory based register copy of the ft5406 registers + * using the number of points register to know whether the copy has been + * updated (we write 99 to the memory copy, the GPU will write between + * 0 - 10 points) + */ +static int ft5406_thread(void *arg) +{ + struct ft5406 *ts = (struct ft5406 *) arg; + struct ft5406_regs regs; + int known_ids = 0; + + while(!kthread_should_stop()) + { + // 60fps polling + msleep_interruptible(17); + memcpy_fromio(®s, ts->ts_base, sizeof(struct ft5406_regs)); + iowrite8(99, ts->ts_base + offsetof(struct ft5406_regs, num_points)); + // Do not output if theres no new information (num_points is 99) + // or we have no touch points and don't need to release any + if(!(regs.num_points == 99 || (regs.num_points == 0 && known_ids == 0))) + { + int i; + int modified_ids = 0, released_ids; + for(i = 0; i < regs.num_points; i++) + { + int x = (((int) regs.point[i].xh & 0xf) << 8) + regs.point[i].xl; + int y = (((int) regs.point[i].yh & 0xf) << 8) + regs.point[i].yl; + int touchid = (regs.point[i].yh >> 4) & 0xf; + + modified_ids |= 1 << touchid; + + if(!((1 << touchid) & known_ids)) + dev_dbg(&ts->pdev->dev, "x = %d, y = %d, touchid = %d\n", x, y, touchid); + + input_mt_slot(ts->input_dev, touchid); + input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, 1); + + input_report_abs(ts->input_dev, ABS_MT_POSITION_X, x); + input_report_abs(ts->input_dev, ABS_MT_POSITION_Y, y); + + } + + released_ids = known_ids & ~modified_ids; + for(i = 0; released_ids && i < MAXIMUM_SUPPORTED_POINTS; i++) + { + if(released_ids & (1<pdev->dev, "Released %d, known = %x modified = %x\n", i, known_ids, modified_ids); + input_mt_slot(ts->input_dev, i); + input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, 0); + modified_ids &= ~(1 << i); + } + } + known_ids = modified_ids; + + input_mt_report_pointer_emulation(ts->input_dev, true); + input_sync(ts->input_dev); + } + + } + + return 0; +} + +static int ft5406_probe(struct platform_device *pdev) +{ + int err = 0; + struct device *dev = &pdev->dev; + struct device_node *np = dev->of_node; + struct ft5406 * ts; + struct device_node *fw_node; + struct rpi_firmware *fw; + u32 touchbuf; + + dev_info(dev, "Probing device\n"); + + fw_node = of_parse_phandle(np, "firmware", 0); + if (!fw_node) { + dev_err(dev, "Missing firmware node\n"); + return -ENOENT; + } + + fw = rpi_firmware_get(fw_node); + if (!fw) + return -EPROBE_DEFER; + + ts = devm_kzalloc(dev, sizeof(struct ft5406), GFP_KERNEL); + if (!ts) { + dev_err(dev, "Failed to allocate memory\n"); + return -ENOMEM; + } + + ts->input_dev = input_allocate_device(); + if (!ts->input_dev) { + dev_err(dev, "Failed to allocate input device\n"); + return -ENOMEM; + } + + ts->ts_base = dma_zalloc_coherent(dev, PAGE_SIZE, &ts->bus_addr, GFP_KERNEL); + if (!ts->ts_base) { + pr_err("[%s]: failed to dma_alloc_coherent(%ld)\n", + __func__, PAGE_SIZE); + err = -ENOMEM; + goto out; + } + + touchbuf = (u32)ts->bus_addr; + err = rpi_firmware_property(fw, RPI_FIRMWARE_FRAMEBUFFER_SET_TOUCHBUF, + &touchbuf, sizeof(touchbuf)); + + if (err || touchbuf != 0) { + dev_warn(dev, "Failed to set touchbuf, trying to get err:%x\n", err); + dma_free_coherent(dev, PAGE_SIZE, ts->ts_base, ts->bus_addr); + ts->ts_base = 0; + ts->bus_addr = 0; + } + + if (!ts->ts_base) { + dev_warn(dev, "set failed, trying get (err:%d touchbuf:%x virt:%p bus:%x)\n", err, touchbuf, ts->ts_base, ts->bus_addr); + + err = rpi_firmware_property(fw, RPI_FIRMWARE_FRAMEBUFFER_GET_TOUCHBUF, + &touchbuf, sizeof(touchbuf)); + if (err) { + dev_err(dev, "Failed to get touch buffer\n"); + goto out; + } + + if (!touchbuf) { + dev_err(dev, "Touchscreen not detected\n"); + err = -ENODEV; + goto out; + } + + dev_dbg(dev, "Got TS buffer 0x%x\n", touchbuf); + + // mmap the physical memory + touchbuf &= ~0xc0000000; + ts->ts_base = ioremap(touchbuf, sizeof(struct ft5406_regs)); + if (ts->ts_base == NULL) + { + dev_err(dev, "Failed to map physical address\n"); + err = -ENOMEM; + goto out; + } + } + platform_set_drvdata(pdev, ts); + ts->pdev = pdev; + + ts->input_dev->name = "FT5406 memory based driver"; + + __set_bit(EV_KEY, ts->input_dev->evbit); + __set_bit(EV_SYN, ts->input_dev->evbit); + __set_bit(EV_ABS, ts->input_dev->evbit); + + input_set_abs_params(ts->input_dev, ABS_MT_POSITION_X, 0, + SCREEN_WIDTH, 0, 0); + input_set_abs_params(ts->input_dev, ABS_MT_POSITION_Y, 0, + SCREEN_HEIGHT, 0, 0); + + input_mt_init_slots(ts->input_dev, MAXIMUM_SUPPORTED_POINTS, INPUT_MT_DIRECT); + + input_set_drvdata(ts->input_dev, ts); + + err = input_register_device(ts->input_dev); + if (err) { + dev_err(dev, "could not register input device, %d\n", + err); + goto out; + } + + // create thread to poll the touch events + ts->thread = kthread_run(ft5406_thread, ts, "ft5406"); + if(ts->thread == NULL) + { + dev_err(dev, "Failed to create kernel thread"); + err = -ENOMEM; + goto out; + } + + return 0; + +out: + if (ts->bus_addr) { + dma_free_coherent(dev, PAGE_SIZE, ts->ts_base, ts->bus_addr); + ts->bus_addr = 0; + ts->ts_base = NULL; + } else if (ts->ts_base) { + iounmap(ts->ts_base); + ts->ts_base = NULL; + } + if (ts->input_dev) { + input_unregister_device(ts->input_dev); + ts->input_dev = NULL; + } + return err; +} + +static int ft5406_remove(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct ft5406 *ts = (struct ft5406 *) platform_get_drvdata(pdev); + + dev_info(dev, "Removing rpi-ft5406\n"); + + kthread_stop(ts->thread); + + if (ts->bus_addr) + dma_free_coherent(dev, PAGE_SIZE, ts->ts_base, ts->bus_addr); + else if (ts->ts_base) + iounmap(ts->ts_base); + if (ts->input_dev) + input_unregister_device(ts->input_dev); + + return 0; +} + +static const struct of_device_id ft5406_match[] = { + { .compatible = "rpi,rpi-ft5406", }, + {}, +}; +MODULE_DEVICE_TABLE(of, ft5406_match); + +static struct platform_driver ft5406_driver = { + .driver = { + .name = "rpi-ft5406", + .owner = THIS_MODULE, + .of_match_table = ft5406_match, + }, + .probe = ft5406_probe, + .remove = ft5406_remove, +}; + +module_platform_driver(ft5406_driver); + +MODULE_AUTHOR("Gordon Hollingworth"); +MODULE_DESCRIPTION("Touchscreen driver for memory based FT5406"); +MODULE_LICENSE("GPL"); diff --git a/include/soc/bcm2835/raspberrypi-firmware.h b/include/soc/bcm2835/raspberrypi-firmware.h index 30fb37fe175df604a738258a2a632bca3bfff33f..4a3d79d3b48eb483a4e4bf498f617515e3ad158f 100644 --- a/include/soc/bcm2835/raspberrypi-firmware.h +++ b/include/soc/bcm2835/raspberrypi-firmware.h @@ -115,6 +115,7 @@ enum rpi_firmware_property_tag { RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_OFFSET = 0x00048009, RPI_FIRMWARE_FRAMEBUFFER_SET_OVERSCAN = 0x0004800a, RPI_FIRMWARE_FRAMEBUFFER_SET_PALETTE = 0x0004800b, + RPI_FIRMWARE_FRAMEBUFFER_SET_TOUCHBUF = 0x0004801f, RPI_FIRMWARE_FRAMEBUFFER_SET_VSYNC = 0x0004800e, RPI_FIRMWARE_FRAMEBUFFER_SET_BACKLIGHT = 0x0004800f, From 5818708586c901f066d91d8b56ad0cb77bbf4690 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Mon, 28 Nov 2016 16:50:04 +0000 Subject: [PATCH 063/165] Improve __copy_to_user and __copy_from_user performance Provide a __copy_from_user that uses memcpy. On BCM2708, use optimised memcpy/memmove/memcmp/memset implementations. arch/arm: Add mmiocpy/set aliases for memcpy/set See: https://github.com/raspberrypi/linux/issues/1082 copy_from_user: CPU_SW_DOMAIN_PAN compatibility The downstream copy_from_user acceleration must also play nice with CONFIG_CPU_SW_DOMAIN_PAN. See: https://github.com/raspberrypi/linux/issues/1381 Signed-off-by: Phil Elwell --- arch/arm/include/asm/string.h | 5 + arch/arm/include/asm/uaccess.h | 3 + arch/arm/lib/Makefile | 15 +- arch/arm/lib/arm-mem.h | 159 ++++++++++++ arch/arm/lib/copy_from_user.S | 4 +- arch/arm/lib/exports_rpi.c | 37 +++ arch/arm/lib/memcmp_rpi.S | 285 +++++++++++++++++++++ arch/arm/lib/memcpy_rpi.S | 61 +++++ arch/arm/lib/memcpymove.h | 506 +++++++++++++++++++++++++++++++++++++ arch/arm/lib/memmove_rpi.S | 61 +++++ arch/arm/lib/memset_rpi.S | 123 +++++++++ arch/arm/lib/uaccess_with_memcpy.c | 120 ++++++++- arch/arm/mach-bcm/Kconfig | 7 + 13 files changed, 1380 insertions(+), 6 deletions(-) create mode 100644 arch/arm/lib/arm-mem.h create mode 100644 arch/arm/lib/exports_rpi.c create mode 100644 arch/arm/lib/memcmp_rpi.S create mode 100644 arch/arm/lib/memcpy_rpi.S create mode 100644 arch/arm/lib/memcpymove.h create mode 100644 arch/arm/lib/memmove_rpi.S create mode 100644 arch/arm/lib/memset_rpi.S diff --git a/arch/arm/include/asm/string.h b/arch/arm/include/asm/string.h index cf4f3aad0fc1c2154c6cf3839ff21bb1c46d6499..d69b70a6007dfc647ad164d1ee90d253c0686dee 100644 --- a/arch/arm/include/asm/string.h +++ b/arch/arm/include/asm/string.h @@ -24,6 +24,11 @@ extern void * memchr(const void *, int, __kernel_size_t); #define __HAVE_ARCH_MEMSET extern void * memset(void *, int, __kernel_size_t); +#ifdef CONFIG_BCM2835_FAST_MEMCPY +#define __HAVE_ARCH_MEMCMP +extern int memcmp(const void *, const void *, size_t); +#endif + extern void __memzero(void *ptr, __kernel_size_t n); #define memset(p,v,n) \ diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h index b7e0125c0bbf2014a447800a383426b62d5147b8..d135f5af80c255865106561a85998bd9511ba346 100644 --- a/arch/arm/include/asm/uaccess.h +++ b/arch/arm/include/asm/uaccess.h @@ -477,6 +477,9 @@ do { \ extern unsigned long __must_check arm_copy_from_user(void *to, const void __user *from, unsigned long n); +extern unsigned long __must_check +__copy_from_user_std(void *to, const void __user *from, unsigned long n); + static inline unsigned long __must_check __arch_copy_from_user(void *to, const void __user *from, unsigned long n) { diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile index 27f4d96258a2e66193d6a3701bb4cf9a44399aad..96b390c9301f816d5c83c6ddb76ac74ba7a3b99d 100644 --- a/arch/arm/lib/Makefile +++ b/arch/arm/lib/Makefile @@ -6,9 +6,8 @@ lib-y := backtrace.o changebit.o csumipv6.o csumpartial.o \ csumpartialcopy.o csumpartialcopyuser.o clearbit.o \ - delay.o delay-loop.o findbit.o memchr.o memcpy.o \ - memmove.o memset.o memzero.o setbit.o \ - strchr.o strrchr.o \ + delay.o delay-loop.o findbit.o memchr.o memzero.o \ + setbit.o strchr.o strrchr.o \ testchangebit.o testclearbit.o testsetbit.o \ ashldi3.o ashrdi3.o lshrdi3.o muldi3.o \ ucmpdi2.o lib1funcs.o div64.o \ @@ -18,6 +17,16 @@ lib-y := backtrace.o changebit.o csumipv6.o csumpartial.o \ mmu-y := clear_user.o copy_page.o getuser.o putuser.o \ copy_from_user.o copy_to_user.o +# Choose optimised implementations for Raspberry Pi +ifeq ($(CONFIG_BCM2835_FAST_MEMCPY),y) + CFLAGS_uaccess_with_memcpy.o += -DCOPY_FROM_USER_THRESHOLD=1600 + CFLAGS_uaccess_with_memcpy.o += -DCOPY_TO_USER_THRESHOLD=672 + obj-$(CONFIG_MODULES) += exports_rpi.o + lib-y += memcpy_rpi.o memmove_rpi.o memset_rpi.o memcmp_rpi.o +else + lib-y += memcpy.o memmove.o memset.o +endif + # using lib_ here won't override already available weak symbols obj-$(CONFIG_UACCESS_WITH_MEMCPY) += uaccess_with_memcpy.o diff --git a/arch/arm/lib/arm-mem.h b/arch/arm/lib/arm-mem.h new file mode 100644 index 0000000000000000000000000000000000000000..5d4bda19ad207c65e7b7c6d6d733087faa96a8cc --- /dev/null +++ b/arch/arm/lib/arm-mem.h @@ -0,0 +1,159 @@ +/* +Copyright (c) 2013, Raspberry Pi Foundation +Copyright (c) 2013, RISC OS Open Ltd +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY +DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +.macro myfunc fname + .func fname + .global fname +fname: +.endm + +.macro preload_leading_step1 backwards, ptr, base +/* If the destination is already 16-byte aligned, then we need to preload + * between 0 and prefetch_distance (inclusive) cache lines ahead so there + * are no gaps when the inner loop starts. + */ + .if backwards + sub ptr, base, #1 + bic ptr, ptr, #31 + .else + bic ptr, base, #31 + .endif + .set OFFSET, 0 + .rept prefetch_distance+1 + pld [ptr, #OFFSET] + .if backwards + .set OFFSET, OFFSET-32 + .else + .set OFFSET, OFFSET+32 + .endif + .endr +.endm + +.macro preload_leading_step2 backwards, ptr, base, leading_bytes, tmp +/* However, if the destination is not 16-byte aligned, we may need to + * preload one more cache line than that. The question we need to ask is: + * are the leading bytes more than the amount by which the source + * pointer will be rounded down for preloading, and if so, by how many + * cache lines? + */ + .if backwards +/* Here we compare against how many bytes we are into the + * cache line, counting down from the highest such address. + * Effectively, we want to calculate + * leading_bytes = dst&15 + * cacheline_offset = 31-((src-leading_bytes-1)&31) + * extra_needed = leading_bytes - cacheline_offset + * and test if extra_needed is <= 0, or rearranging: + * leading_bytes + (src-leading_bytes-1)&31 <= 31 + */ + mov tmp, base, lsl #32-5 + sbc tmp, tmp, leading_bytes, lsl #32-5 + adds tmp, tmp, leading_bytes, lsl #32-5 + bcc 61f + pld [ptr, #-32*(prefetch_distance+1)] + .else +/* Effectively, we want to calculate + * leading_bytes = (-dst)&15 + * cacheline_offset = (src+leading_bytes)&31 + * extra_needed = leading_bytes - cacheline_offset + * and test if extra_needed is <= 0. + */ + mov tmp, base, lsl #32-5 + add tmp, tmp, leading_bytes, lsl #32-5 + rsbs tmp, tmp, leading_bytes, lsl #32-5 + bls 61f + pld [ptr, #32*(prefetch_distance+1)] + .endif +61: +.endm + +.macro preload_trailing backwards, base, remain, tmp + /* We need either 0, 1 or 2 extra preloads */ + .if backwards + rsb tmp, base, #0 + mov tmp, tmp, lsl #32-5 + .else + mov tmp, base, lsl #32-5 + .endif + adds tmp, tmp, remain, lsl #32-5 + adceqs tmp, tmp, #0 + /* The instruction above has two effects: ensures Z is only + * set if C was clear (so Z indicates that both shifted quantities + * were 0), and clears C if Z was set (so C indicates that the sum + * of the shifted quantities was greater and not equal to 32) */ + beq 82f + .if backwards + sub tmp, base, #1 + bic tmp, tmp, #31 + .else + bic tmp, base, #31 + .endif + bcc 81f + .if backwards + pld [tmp, #-32*(prefetch_distance+1)] +81: + pld [tmp, #-32*prefetch_distance] + .else + pld [tmp, #32*(prefetch_distance+2)] +81: + pld [tmp, #32*(prefetch_distance+1)] + .endif +82: +.endm + +.macro preload_all backwards, narrow_case, shift, base, remain, tmp0, tmp1 + .if backwards + sub tmp0, base, #1 + bic tmp0, tmp0, #31 + pld [tmp0] + sub tmp1, base, remain, lsl #shift + .else + bic tmp0, base, #31 + pld [tmp0] + add tmp1, base, remain, lsl #shift + sub tmp1, tmp1, #1 + .endif + bic tmp1, tmp1, #31 + cmp tmp1, tmp0 + beq 92f + .if narrow_case + /* In this case, all the data fits in either 1 or 2 cache lines */ + pld [tmp1] + .else +91: + .if backwards + sub tmp0, tmp0, #32 + .else + add tmp0, tmp0, #32 + .endif + cmp tmp0, tmp1 + pld [tmp0] + bne 91b + .endif +92: +.endm diff --git a/arch/arm/lib/copy_from_user.S b/arch/arm/lib/copy_from_user.S index 7a4b060490012dd29f8a6d9fb8e24dfa58896bd1..fb40a1b3a5b7d42f93ae362e3326b7a72dc290dc 100644 --- a/arch/arm/lib/copy_from_user.S +++ b/arch/arm/lib/copy_from_user.S @@ -89,11 +89,13 @@ .text -ENTRY(arm_copy_from_user) +ENTRY(__copy_from_user_std) +WEAK(arm_copy_from_user) #include "copy_template.S" ENDPROC(arm_copy_from_user) +ENDPROC(__copy_from_user_std) .pushsection .fixup,"ax" .align 0 diff --git a/arch/arm/lib/exports_rpi.c b/arch/arm/lib/exports_rpi.c new file mode 100644 index 0000000000000000000000000000000000000000..1f826047db754ffde0077ac291b9605e201abd07 --- /dev/null +++ b/arch/arm/lib/exports_rpi.c @@ -0,0 +1,37 @@ +/** + * Copyright (c) 2014, Raspberry Pi (Trading) Ltd. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The names of the above-listed copyright holders may not be used + * to endorse or promote products derived from this software without + * specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2, as published by the Free + * Software Foundation. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS + * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include + +EXPORT_SYMBOL(memcmp); diff --git a/arch/arm/lib/memcmp_rpi.S b/arch/arm/lib/memcmp_rpi.S new file mode 100644 index 0000000000000000000000000000000000000000..bf6e4edfc9d3b9882b72edada681b79ce37850df --- /dev/null +++ b/arch/arm/lib/memcmp_rpi.S @@ -0,0 +1,285 @@ +/* +Copyright (c) 2013, Raspberry Pi Foundation +Copyright (c) 2013, RISC OS Open Ltd +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY +DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include +#include "arm-mem.h" + +/* Prevent the stack from becoming executable */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack,"",%progbits +#endif + + .text + .arch armv6 + .object_arch armv4 + .arm + .altmacro + .p2align 2 + +.macro memcmp_process_head unaligned + .if unaligned + ldr DAT0, [S_1], #4 + ldr DAT1, [S_1], #4 + ldr DAT2, [S_1], #4 + ldr DAT3, [S_1], #4 + .else + ldmia S_1!, {DAT0, DAT1, DAT2, DAT3} + .endif + ldmia S_2!, {DAT4, DAT5, DAT6, DAT7} +.endm + +.macro memcmp_process_tail + cmp DAT0, DAT4 + cmpeq DAT1, DAT5 + cmpeq DAT2, DAT6 + cmpeq DAT3, DAT7 + bne 200f +.endm + +.macro memcmp_leading_31bytes + movs DAT0, OFF, lsl #31 + ldrmib DAT0, [S_1], #1 + ldrcsh DAT1, [S_1], #2 + ldrmib DAT4, [S_2], #1 + ldrcsh DAT5, [S_2], #2 + movpl DAT0, #0 + movcc DAT1, #0 + movpl DAT4, #0 + movcc DAT5, #0 + submi N, N, #1 + subcs N, N, #2 + cmp DAT0, DAT4 + cmpeq DAT1, DAT5 + bne 200f + movs DAT0, OFF, lsl #29 + ldrmi DAT0, [S_1], #4 + ldrcs DAT1, [S_1], #4 + ldrcs DAT2, [S_1], #4 + ldrmi DAT4, [S_2], #4 + ldmcsia S_2!, {DAT5, DAT6} + movpl DAT0, #0 + movcc DAT1, #0 + movcc DAT2, #0 + movpl DAT4, #0 + movcc DAT5, #0 + movcc DAT6, #0 + submi N, N, #4 + subcs N, N, #8 + cmp DAT0, DAT4 + cmpeq DAT1, DAT5 + cmpeq DAT2, DAT6 + bne 200f + tst OFF, #16 + beq 105f + memcmp_process_head 1 + sub N, N, #16 + memcmp_process_tail +105: +.endm + +.macro memcmp_trailing_15bytes unaligned + movs N, N, lsl #29 + .if unaligned + ldrcs DAT0, [S_1], #4 + ldrcs DAT1, [S_1], #4 + .else + ldmcsia S_1!, {DAT0, DAT1} + .endif + ldrmi DAT2, [S_1], #4 + ldmcsia S_2!, {DAT4, DAT5} + ldrmi DAT6, [S_2], #4 + movcc DAT0, #0 + movcc DAT1, #0 + movpl DAT2, #0 + movcc DAT4, #0 + movcc DAT5, #0 + movpl DAT6, #0 + cmp DAT0, DAT4 + cmpeq DAT1, DAT5 + cmpeq DAT2, DAT6 + bne 200f + movs N, N, lsl #2 + ldrcsh DAT0, [S_1], #2 + ldrmib DAT1, [S_1] + ldrcsh DAT4, [S_2], #2 + ldrmib DAT5, [S_2] + movcc DAT0, #0 + movpl DAT1, #0 + movcc DAT4, #0 + movpl DAT5, #0 + cmp DAT0, DAT4 + cmpeq DAT1, DAT5 + bne 200f +.endm + +.macro memcmp_long_inner_loop unaligned +110: + memcmp_process_head unaligned + pld [S_2, #prefetch_distance*32 + 16] + memcmp_process_tail + memcmp_process_head unaligned + pld [S_1, OFF] + memcmp_process_tail + subs N, N, #32 + bhs 110b + /* Just before the final (prefetch_distance+1) 32-byte blocks, + * deal with final preloads */ + preload_trailing 0, S_1, N, DAT0 + preload_trailing 0, S_2, N, DAT0 + add N, N, #(prefetch_distance+2)*32 - 16 +120: + memcmp_process_head unaligned + memcmp_process_tail + subs N, N, #16 + bhs 120b + /* Trailing words and bytes */ + tst N, #15 + beq 199f + memcmp_trailing_15bytes unaligned +199: /* Reached end without detecting a difference */ + mov a1, #0 + setend le + pop {DAT1-DAT6, pc} +.endm + +.macro memcmp_short_inner_loop unaligned + subs N, N, #16 /* simplifies inner loop termination */ + blo 122f +120: + memcmp_process_head unaligned + memcmp_process_tail + subs N, N, #16 + bhs 120b +122: /* Trailing words and bytes */ + tst N, #15 + beq 199f + memcmp_trailing_15bytes unaligned +199: /* Reached end without detecting a difference */ + mov a1, #0 + setend le + pop {DAT1-DAT6, pc} +.endm + +/* + * int memcmp(const void *s1, const void *s2, size_t n); + * On entry: + * a1 = pointer to buffer 1 + * a2 = pointer to buffer 2 + * a3 = number of bytes to compare (as unsigned chars) + * On exit: + * a1 = >0/=0/<0 if s1 >/=/< s2 + */ + +.set prefetch_distance, 2 + +ENTRY(memcmp) + S_1 .req a1 + S_2 .req a2 + N .req a3 + DAT0 .req a4 + DAT1 .req v1 + DAT2 .req v2 + DAT3 .req v3 + DAT4 .req v4 + DAT5 .req v5 + DAT6 .req v6 + DAT7 .req ip + OFF .req lr + + push {DAT1-DAT6, lr} + setend be /* lowest-addressed bytes are most significant */ + + /* To preload ahead as we go, we need at least (prefetch_distance+2) 32-byte blocks */ + cmp N, #(prefetch_distance+3)*32 - 1 + blo 170f + + /* Long case */ + /* Adjust N so that the decrement instruction can also test for + * inner loop termination. We want it to stop when there are + * (prefetch_distance+1) complete blocks to go. */ + sub N, N, #(prefetch_distance+2)*32 + preload_leading_step1 0, DAT0, S_1 + preload_leading_step1 0, DAT1, S_2 + tst S_2, #31 + beq 154f + rsb OFF, S_2, #0 /* no need to AND with 15 here */ + preload_leading_step2 0, DAT0, S_1, OFF, DAT2 + preload_leading_step2 0, DAT1, S_2, OFF, DAT2 + memcmp_leading_31bytes +154: /* Second source now cacheline (32-byte) aligned; we have at + * least one prefetch to go. */ + /* Prefetch offset is best selected such that it lies in the + * first 8 of each 32 bytes - but it's just as easy to aim for + * the first one */ + and OFF, S_1, #31 + rsb OFF, OFF, #32*prefetch_distance + tst S_1, #3 + bne 140f + memcmp_long_inner_loop 0 +140: memcmp_long_inner_loop 1 + +170: /* Short case */ + teq N, #0 + beq 199f + preload_all 0, 0, 0, S_1, N, DAT0, DAT1 + preload_all 0, 0, 0, S_2, N, DAT0, DAT1 + tst S_2, #3 + beq 174f +172: subs N, N, #1 + blo 199f + ldrb DAT0, [S_1], #1 + ldrb DAT4, [S_2], #1 + cmp DAT0, DAT4 + bne 200f + tst S_2, #3 + bne 172b +174: /* Second source now 4-byte aligned; we have 0 or more bytes to go */ + tst S_1, #3 + bne 140f + memcmp_short_inner_loop 0 +140: memcmp_short_inner_loop 1 + +200: /* Difference found: determine sign. */ + movhi a1, #1 + movlo a1, #-1 + setend le + pop {DAT1-DAT6, pc} + + .unreq S_1 + .unreq S_2 + .unreq N + .unreq DAT0 + .unreq DAT1 + .unreq DAT2 + .unreq DAT3 + .unreq DAT4 + .unreq DAT5 + .unreq DAT6 + .unreq DAT7 + .unreq OFF +ENDPROC(memcmp) diff --git a/arch/arm/lib/memcpy_rpi.S b/arch/arm/lib/memcpy_rpi.S new file mode 100644 index 0000000000000000000000000000000000000000..30f8a9089a835ff265ce5aaf98f066258608eb92 --- /dev/null +++ b/arch/arm/lib/memcpy_rpi.S @@ -0,0 +1,61 @@ +/* +Copyright (c) 2013, Raspberry Pi Foundation +Copyright (c) 2013, RISC OS Open Ltd +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY +DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include +#include "arm-mem.h" +#include "memcpymove.h" + +/* Prevent the stack from becoming executable */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack,"",%progbits +#endif + + .text + .arch armv6 + .object_arch armv4 + .arm + .altmacro + .p2align 2 + +/* + * void *memcpy(void * restrict s1, const void * restrict s2, size_t n); + * On entry: + * a1 = pointer to destination + * a2 = pointer to source + * a3 = number of bytes to copy + * On exit: + * a1 preserved + */ + +.set prefetch_distance, 3 + +ENTRY(mmiocpy) +ENTRY(memcpy) + memcpy 0 +ENDPROC(memcpy) +ENDPROC(mmiocpy) diff --git a/arch/arm/lib/memcpymove.h b/arch/arm/lib/memcpymove.h new file mode 100644 index 0000000000000000000000000000000000000000..d8be5849c8609f4ead85527ec527184614a77371 --- /dev/null +++ b/arch/arm/lib/memcpymove.h @@ -0,0 +1,506 @@ +/* +Copyright (c) 2013, Raspberry Pi Foundation +Copyright (c) 2013, RISC OS Open Ltd +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY +DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +.macro unaligned_words backwards, align, use_pld, words, r0, r1, r2, r3, r4, r5, r6, r7, r8 + .if words == 1 + .if backwards + mov r1, r0, lsl #32-align*8 + ldr r0, [S, #-4]! + orr r1, r1, r0, lsr #align*8 + str r1, [D, #-4]! + .else + mov r0, r1, lsr #align*8 + ldr r1, [S, #4]! + orr r0, r0, r1, lsl #32-align*8 + str r0, [D], #4 + .endif + .elseif words == 2 + .if backwards + ldr r1, [S, #-4]! + mov r2, r0, lsl #32-align*8 + ldr r0, [S, #-4]! + orr r2, r2, r1, lsr #align*8 + mov r1, r1, lsl #32-align*8 + orr r1, r1, r0, lsr #align*8 + stmdb D!, {r1, r2} + .else + ldr r1, [S, #4]! + mov r0, r2, lsr #align*8 + ldr r2, [S, #4]! + orr r0, r0, r1, lsl #32-align*8 + mov r1, r1, lsr #align*8 + orr r1, r1, r2, lsl #32-align*8 + stmia D!, {r0, r1} + .endif + .elseif words == 4 + .if backwards + ldmdb S!, {r2, r3} + mov r4, r0, lsl #32-align*8 + ldmdb S!, {r0, r1} + orr r4, r4, r3, lsr #align*8 + mov r3, r3, lsl #32-align*8 + orr r3, r3, r2, lsr #align*8 + mov r2, r2, lsl #32-align*8 + orr r2, r2, r1, lsr #align*8 + mov r1, r1, lsl #32-align*8 + orr r1, r1, r0, lsr #align*8 + stmdb D!, {r1, r2, r3, r4} + .else + ldmib S!, {r1, r2} + mov r0, r4, lsr #align*8 + ldmib S!, {r3, r4} + orr r0, r0, r1, lsl #32-align*8 + mov r1, r1, lsr #align*8 + orr r1, r1, r2, lsl #32-align*8 + mov r2, r2, lsr #align*8 + orr r2, r2, r3, lsl #32-align*8 + mov r3, r3, lsr #align*8 + orr r3, r3, r4, lsl #32-align*8 + stmia D!, {r0, r1, r2, r3} + .endif + .elseif words == 8 + .if backwards + ldmdb S!, {r4, r5, r6, r7} + mov r8, r0, lsl #32-align*8 + ldmdb S!, {r0, r1, r2, r3} + .if use_pld + pld [S, OFF] + .endif + orr r8, r8, r7, lsr #align*8 + mov r7, r7, lsl #32-align*8 + orr r7, r7, r6, lsr #align*8 + mov r6, r6, lsl #32-align*8 + orr r6, r6, r5, lsr #align*8 + mov r5, r5, lsl #32-align*8 + orr r5, r5, r4, lsr #align*8 + mov r4, r4, lsl #32-align*8 + orr r4, r4, r3, lsr #align*8 + mov r3, r3, lsl #32-align*8 + orr r3, r3, r2, lsr #align*8 + mov r2, r2, lsl #32-align*8 + orr r2, r2, r1, lsr #align*8 + mov r1, r1, lsl #32-align*8 + orr r1, r1, r0, lsr #align*8 + stmdb D!, {r5, r6, r7, r8} + stmdb D!, {r1, r2, r3, r4} + .else + ldmib S!, {r1, r2, r3, r4} + mov r0, r8, lsr #align*8 + ldmib S!, {r5, r6, r7, r8} + .if use_pld + pld [S, OFF] + .endif + orr r0, r0, r1, lsl #32-align*8 + mov r1, r1, lsr #align*8 + orr r1, r1, r2, lsl #32-align*8 + mov r2, r2, lsr #align*8 + orr r2, r2, r3, lsl #32-align*8 + mov r3, r3, lsr #align*8 + orr r3, r3, r4, lsl #32-align*8 + mov r4, r4, lsr #align*8 + orr r4, r4, r5, lsl #32-align*8 + mov r5, r5, lsr #align*8 + orr r5, r5, r6, lsl #32-align*8 + mov r6, r6, lsr #align*8 + orr r6, r6, r7, lsl #32-align*8 + mov r7, r7, lsr #align*8 + orr r7, r7, r8, lsl #32-align*8 + stmia D!, {r0, r1, r2, r3} + stmia D!, {r4, r5, r6, r7} + .endif + .endif +.endm + +.macro memcpy_leading_15bytes backwards, align + movs DAT1, DAT2, lsl #31 + sub N, N, DAT2 + .if backwards + ldrmib DAT0, [S, #-1]! + ldrcsh DAT1, [S, #-2]! + strmib DAT0, [D, #-1]! + strcsh DAT1, [D, #-2]! + .else + ldrmib DAT0, [S], #1 + ldrcsh DAT1, [S], #2 + strmib DAT0, [D], #1 + strcsh DAT1, [D], #2 + .endif + movs DAT1, DAT2, lsl #29 + .if backwards + ldrmi DAT0, [S, #-4]! + .if align == 0 + ldmcsdb S!, {DAT1, DAT2} + .else + ldrcs DAT2, [S, #-4]! + ldrcs DAT1, [S, #-4]! + .endif + strmi DAT0, [D, #-4]! + stmcsdb D!, {DAT1, DAT2} + .else + ldrmi DAT0, [S], #4 + .if align == 0 + ldmcsia S!, {DAT1, DAT2} + .else + ldrcs DAT1, [S], #4 + ldrcs DAT2, [S], #4 + .endif + strmi DAT0, [D], #4 + stmcsia D!, {DAT1, DAT2} + .endif +.endm + +.macro memcpy_trailing_15bytes backwards, align + movs N, N, lsl #29 + .if backwards + .if align == 0 + ldmcsdb S!, {DAT0, DAT1} + .else + ldrcs DAT1, [S, #-4]! + ldrcs DAT0, [S, #-4]! + .endif + ldrmi DAT2, [S, #-4]! + stmcsdb D!, {DAT0, DAT1} + strmi DAT2, [D, #-4]! + .else + .if align == 0 + ldmcsia S!, {DAT0, DAT1} + .else + ldrcs DAT0, [S], #4 + ldrcs DAT1, [S], #4 + .endif + ldrmi DAT2, [S], #4 + stmcsia D!, {DAT0, DAT1} + strmi DAT2, [D], #4 + .endif + movs N, N, lsl #2 + .if backwards + ldrcsh DAT0, [S, #-2]! + ldrmib DAT1, [S, #-1] + strcsh DAT0, [D, #-2]! + strmib DAT1, [D, #-1] + .else + ldrcsh DAT0, [S], #2 + ldrmib DAT1, [S] + strcsh DAT0, [D], #2 + strmib DAT1, [D] + .endif +.endm + +.macro memcpy_long_inner_loop backwards, align + .if align != 0 + .if backwards + ldr DAT0, [S, #-align]! + .else + ldr LAST, [S, #-align]! + .endif + .endif +110: + .if align == 0 + .if backwards + ldmdb S!, {DAT0, DAT1, DAT2, DAT3, DAT4, DAT5, DAT6, LAST} + pld [S, OFF] + stmdb D!, {DAT4, DAT5, DAT6, LAST} + stmdb D!, {DAT0, DAT1, DAT2, DAT3} + .else + ldmia S!, {DAT0, DAT1, DAT2, DAT3, DAT4, DAT5, DAT6, LAST} + pld [S, OFF] + stmia D!, {DAT0, DAT1, DAT2, DAT3} + stmia D!, {DAT4, DAT5, DAT6, LAST} + .endif + .else + unaligned_words backwards, align, 1, 8, DAT0, DAT1, DAT2, DAT3, DAT4, DAT5, DAT6, DAT7, LAST + .endif + subs N, N, #32 + bhs 110b + /* Just before the final (prefetch_distance+1) 32-byte blocks, deal with final preloads */ + preload_trailing backwards, S, N, OFF + add N, N, #(prefetch_distance+2)*32 - 32 +120: + .if align == 0 + .if backwards + ldmdb S!, {DAT0, DAT1, DAT2, DAT3, DAT4, DAT5, DAT6, LAST} + stmdb D!, {DAT4, DAT5, DAT6, LAST} + stmdb D!, {DAT0, DAT1, DAT2, DAT3} + .else + ldmia S!, {DAT0, DAT1, DAT2, DAT3, DAT4, DAT5, DAT6, LAST} + stmia D!, {DAT0, DAT1, DAT2, DAT3} + stmia D!, {DAT4, DAT5, DAT6, LAST} + .endif + .else + unaligned_words backwards, align, 0, 8, DAT0, DAT1, DAT2, DAT3, DAT4, DAT5, DAT6, DAT7, LAST + .endif + subs N, N, #32 + bhs 120b + tst N, #16 + .if align == 0 + .if backwards + ldmnedb S!, {DAT0, DAT1, DAT2, LAST} + stmnedb D!, {DAT0, DAT1, DAT2, LAST} + .else + ldmneia S!, {DAT0, DAT1, DAT2, LAST} + stmneia D!, {DAT0, DAT1, DAT2, LAST} + .endif + .else + beq 130f + unaligned_words backwards, align, 0, 4, DAT0, DAT1, DAT2, DAT3, LAST +130: + .endif + /* Trailing words and bytes */ + tst N, #15 + beq 199f + .if align != 0 + add S, S, #align + .endif + memcpy_trailing_15bytes backwards, align +199: + pop {DAT3, DAT4, DAT5, DAT6, DAT7} + pop {D, DAT1, DAT2, pc} +.endm + +.macro memcpy_medium_inner_loop backwards, align +120: + .if backwards + .if align == 0 + ldmdb S!, {DAT0, DAT1, DAT2, LAST} + .else + ldr LAST, [S, #-4]! + ldr DAT2, [S, #-4]! + ldr DAT1, [S, #-4]! + ldr DAT0, [S, #-4]! + .endif + stmdb D!, {DAT0, DAT1, DAT2, LAST} + .else + .if align == 0 + ldmia S!, {DAT0, DAT1, DAT2, LAST} + .else + ldr DAT0, [S], #4 + ldr DAT1, [S], #4 + ldr DAT2, [S], #4 + ldr LAST, [S], #4 + .endif + stmia D!, {DAT0, DAT1, DAT2, LAST} + .endif + subs N, N, #16 + bhs 120b + /* Trailing words and bytes */ + tst N, #15 + beq 199f + memcpy_trailing_15bytes backwards, align +199: + pop {D, DAT1, DAT2, pc} +.endm + +.macro memcpy_short_inner_loop backwards, align + tst N, #16 + .if backwards + .if align == 0 + ldmnedb S!, {DAT0, DAT1, DAT2, LAST} + .else + ldrne LAST, [S, #-4]! + ldrne DAT2, [S, #-4]! + ldrne DAT1, [S, #-4]! + ldrne DAT0, [S, #-4]! + .endif + stmnedb D!, {DAT0, DAT1, DAT2, LAST} + .else + .if align == 0 + ldmneia S!, {DAT0, DAT1, DAT2, LAST} + .else + ldrne DAT0, [S], #4 + ldrne DAT1, [S], #4 + ldrne DAT2, [S], #4 + ldrne LAST, [S], #4 + .endif + stmneia D!, {DAT0, DAT1, DAT2, LAST} + .endif + memcpy_trailing_15bytes backwards, align +199: + pop {D, DAT1, DAT2, pc} +.endm + +.macro memcpy backwards + D .req a1 + S .req a2 + N .req a3 + DAT0 .req a4 + DAT1 .req v1 + DAT2 .req v2 + DAT3 .req v3 + DAT4 .req v4 + DAT5 .req v5 + DAT6 .req v6 + DAT7 .req sl + LAST .req ip + OFF .req lr + + .cfi_startproc + + push {D, DAT1, DAT2, lr} + + .cfi_def_cfa_offset 16 + .cfi_rel_offset D, 0 + .cfi_undefined S + .cfi_undefined N + .cfi_undefined DAT0 + .cfi_rel_offset DAT1, 4 + .cfi_rel_offset DAT2, 8 + .cfi_undefined LAST + .cfi_rel_offset lr, 12 + + .if backwards + add D, D, N + add S, S, N + .endif + + /* See if we're guaranteed to have at least one 16-byte aligned 16-byte write */ + cmp N, #31 + blo 170f + /* To preload ahead as we go, we need at least (prefetch_distance+2) 32-byte blocks */ + cmp N, #(prefetch_distance+3)*32 - 1 + blo 160f + + /* Long case */ + push {DAT3, DAT4, DAT5, DAT6, DAT7} + + .cfi_def_cfa_offset 36 + .cfi_rel_offset D, 20 + .cfi_rel_offset DAT1, 24 + .cfi_rel_offset DAT2, 28 + .cfi_rel_offset DAT3, 0 + .cfi_rel_offset DAT4, 4 + .cfi_rel_offset DAT5, 8 + .cfi_rel_offset DAT6, 12 + .cfi_rel_offset DAT7, 16 + .cfi_rel_offset lr, 32 + + /* Adjust N so that the decrement instruction can also test for + * inner loop termination. We want it to stop when there are + * (prefetch_distance+1) complete blocks to go. */ + sub N, N, #(prefetch_distance+2)*32 + preload_leading_step1 backwards, DAT0, S + .if backwards + /* Bug in GAS: it accepts, but mis-assembles the instruction + * ands DAT2, D, #60, 2 + * which sets DAT2 to the number of leading bytes until destination is aligned and also clears C (sets borrow) + */ + .word 0xE210513C + beq 154f + .else + ands DAT2, D, #15 + beq 154f + rsb DAT2, DAT2, #16 /* number of leading bytes until destination aligned */ + .endif + preload_leading_step2 backwards, DAT0, S, DAT2, OFF + memcpy_leading_15bytes backwards, 1 +154: /* Destination now 16-byte aligned; we have at least one prefetch as well as at least one 16-byte output block */ + /* Prefetch offset is best selected such that it lies in the first 8 of each 32 bytes - but it's just as easy to aim for the first one */ + .if backwards + rsb OFF, S, #3 + and OFF, OFF, #28 + sub OFF, OFF, #32*(prefetch_distance+1) + .else + and OFF, S, #28 + rsb OFF, OFF, #32*prefetch_distance + .endif + movs DAT0, S, lsl #31 + bhi 157f + bcs 156f + bmi 155f + memcpy_long_inner_loop backwards, 0 +155: memcpy_long_inner_loop backwards, 1 +156: memcpy_long_inner_loop backwards, 2 +157: memcpy_long_inner_loop backwards, 3 + + .cfi_def_cfa_offset 16 + .cfi_rel_offset D, 0 + .cfi_rel_offset DAT1, 4 + .cfi_rel_offset DAT2, 8 + .cfi_same_value DAT3 + .cfi_same_value DAT4 + .cfi_same_value DAT5 + .cfi_same_value DAT6 + .cfi_same_value DAT7 + .cfi_rel_offset lr, 12 + +160: /* Medium case */ + preload_all backwards, 0, 0, S, N, DAT2, OFF + sub N, N, #16 /* simplifies inner loop termination */ + .if backwards + ands DAT2, D, #15 + beq 164f + .else + ands DAT2, D, #15 + beq 164f + rsb DAT2, DAT2, #16 + .endif + memcpy_leading_15bytes backwards, align +164: /* Destination now 16-byte aligned; we have at least one 16-byte output block */ + tst S, #3 + bne 140f + memcpy_medium_inner_loop backwards, 0 +140: memcpy_medium_inner_loop backwards, 1 + +170: /* Short case, less than 31 bytes, so no guarantee of at least one 16-byte block */ + teq N, #0 + beq 199f + preload_all backwards, 1, 0, S, N, DAT2, LAST + tst D, #3 + beq 174f +172: subs N, N, #1 + blo 199f + .if backwards + ldrb DAT0, [S, #-1]! + strb DAT0, [D, #-1]! + .else + ldrb DAT0, [S], #1 + strb DAT0, [D], #1 + .endif + tst D, #3 + bne 172b +174: /* Destination now 4-byte aligned; we have 0 or more output bytes to go */ + tst S, #3 + bne 140f + memcpy_short_inner_loop backwards, 0 +140: memcpy_short_inner_loop backwards, 1 + + .cfi_endproc + + .unreq D + .unreq S + .unreq N + .unreq DAT0 + .unreq DAT1 + .unreq DAT2 + .unreq DAT3 + .unreq DAT4 + .unreq DAT5 + .unreq DAT6 + .unreq DAT7 + .unreq LAST + .unreq OFF +.endm diff --git a/arch/arm/lib/memmove_rpi.S b/arch/arm/lib/memmove_rpi.S new file mode 100644 index 0000000000000000000000000000000000000000..8b0760c0904c51ef205e56d238b5df8a5226d7cf --- /dev/null +++ b/arch/arm/lib/memmove_rpi.S @@ -0,0 +1,61 @@ +/* +Copyright (c) 2013, Raspberry Pi Foundation +Copyright (c) 2013, RISC OS Open Ltd +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY +DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include +#include "arm-mem.h" +#include "memcpymove.h" + +/* Prevent the stack from becoming executable */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack,"",%progbits +#endif + + .text + .arch armv6 + .object_arch armv4 + .arm + .altmacro + .p2align 2 + +/* + * void *memmove(void *s1, const void *s2, size_t n); + * On entry: + * a1 = pointer to destination + * a2 = pointer to source + * a3 = number of bytes to copy + * On exit: + * a1 preserved + */ + +.set prefetch_distance, 3 + +ENTRY(memmove) + cmp a2, a1 + bpl memcpy /* pl works even over -1 - 0 and 0x7fffffff - 0x80000000 boundaries */ + memcpy 1 +ENDPROC(memmove) diff --git a/arch/arm/lib/memset_rpi.S b/arch/arm/lib/memset_rpi.S new file mode 100644 index 0000000000000000000000000000000000000000..70674158d76cd38d8d70c987aa54a6b477e4fa91 --- /dev/null +++ b/arch/arm/lib/memset_rpi.S @@ -0,0 +1,123 @@ +/* +Copyright (c) 2013, Raspberry Pi Foundation +Copyright (c) 2013, RISC OS Open Ltd +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY +DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include +#include "arm-mem.h" + +/* Prevent the stack from becoming executable */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack,"",%progbits +#endif + + .text + .arch armv6 + .object_arch armv4 + .arm + .altmacro + .p2align 2 + +/* + * void *memset(void *s, int c, size_t n); + * On entry: + * a1 = pointer to buffer to fill + * a2 = byte pattern to fill with (caller-narrowed) + * a3 = number of bytes to fill + * On exit: + * a1 preserved + */ +ENTRY(mmioset) +ENTRY(memset) + S .req a1 + DAT0 .req a2 + N .req a3 + DAT1 .req a4 + DAT2 .req ip + DAT3 .req lr + + orr DAT0, DAT0, lsl #8 + push {S, lr} + orr DAT0, DAT0, lsl #16 + mov DAT1, DAT0 + + /* See if we're guaranteed to have at least one 16-byte aligned 16-byte write */ + cmp N, #31 + blo 170f + +161: sub N, N, #16 /* simplifies inner loop termination */ + /* Leading words and bytes */ + tst S, #15 + beq 164f + rsb DAT3, S, #0 /* bits 0-3 = number of leading bytes until aligned */ + movs DAT2, DAT3, lsl #31 + submi N, N, #1 + strmib DAT0, [S], #1 + subcs N, N, #2 + strcsh DAT0, [S], #2 + movs DAT2, DAT3, lsl #29 + submi N, N, #4 + strmi DAT0, [S], #4 + subcs N, N, #8 + stmcsia S!, {DAT0, DAT1} +164: /* Delayed set up of DAT2 and DAT3 so we could use them as scratch registers above */ + mov DAT2, DAT0 + mov DAT3, DAT0 + /* Now the inner loop of 16-byte stores */ +165: stmia S!, {DAT0, DAT1, DAT2, DAT3} + subs N, N, #16 + bhs 165b +166: /* Trailing words and bytes */ + movs N, N, lsl #29 + stmcsia S!, {DAT0, DAT1} + strmi DAT0, [S], #4 + movs N, N, lsl #2 + strcsh DAT0, [S], #2 + strmib DAT0, [S] +199: pop {S, pc} + +170: /* Short case */ + mov DAT2, DAT0 + mov DAT3, DAT0 + tst S, #3 + beq 174f +172: subs N, N, #1 + blo 199b + strb DAT0, [S], #1 + tst S, #3 + bne 172b +174: tst N, #16 + stmneia S!, {DAT0, DAT1, DAT2, DAT3} + b 166b + + .unreq S + .unreq DAT0 + .unreq N + .unreq DAT1 + .unreq DAT2 + .unreq DAT3 +ENDPROC(memset) +ENDPROC(mmioset) diff --git a/arch/arm/lib/uaccess_with_memcpy.c b/arch/arm/lib/uaccess_with_memcpy.c index 6bd1089b07e0960830ed6bd6a8345202b7efd8b0..cd17dd11ebe7bbe00089e70cd2ccea74e0400200 100644 --- a/arch/arm/lib/uaccess_with_memcpy.c +++ b/arch/arm/lib/uaccess_with_memcpy.c @@ -22,6 +22,14 @@ #include #include +#ifndef COPY_FROM_USER_THRESHOLD +#define COPY_FROM_USER_THRESHOLD 64 +#endif + +#ifndef COPY_TO_USER_THRESHOLD +#define COPY_TO_USER_THRESHOLD 64 +#endif + static int pin_page_for_write(const void __user *_addr, pte_t **ptep, spinlock_t **ptlp) { @@ -84,7 +92,44 @@ pin_page_for_write(const void __user *_addr, pte_t **ptep, spinlock_t **ptlp) return 1; } -static unsigned long noinline +static int +pin_page_for_read(const void __user *_addr, pte_t **ptep, spinlock_t **ptlp) +{ + unsigned long addr = (unsigned long)_addr; + pgd_t *pgd; + pmd_t *pmd; + pte_t *pte; + pud_t *pud; + spinlock_t *ptl; + + pgd = pgd_offset(current->mm, addr); + if (unlikely(pgd_none(*pgd) || pgd_bad(*pgd))) + { + return 0; + } + pud = pud_offset(pgd, addr); + if (unlikely(pud_none(*pud) || pud_bad(*pud))) + { + return 0; + } + + pmd = pmd_offset(pud, addr); + if (unlikely(pmd_none(*pmd) || pmd_bad(*pmd))) + return 0; + + pte = pte_offset_map_lock(current->mm, pmd, addr, &ptl); + if (unlikely(!pte_present(*pte) || !pte_young(*pte))) { + pte_unmap_unlock(pte, ptl); + return 0; + } + + *ptep = pte; + *ptlp = ptl; + + return 1; +} + +unsigned long noinline __copy_to_user_memcpy(void __user *to, const void *from, unsigned long n) { unsigned long ua_flags; @@ -137,6 +182,57 @@ __copy_to_user_memcpy(void __user *to, const void *from, unsigned long n) return n; } +unsigned long noinline +__copy_from_user_memcpy(void *to, const void __user *from, unsigned long n) +{ + unsigned long ua_flags; + int atomic; + + if (unlikely(segment_eq(get_fs(), KERNEL_DS))) { + memcpy(to, (const void *)from, n); + return 0; + } + + /* the mmap semaphore is taken only if not in an atomic context */ + atomic = in_atomic(); + + if (!atomic) + down_read(¤t->mm->mmap_sem); + while (n) { + pte_t *pte; + spinlock_t *ptl; + int tocopy; + + while (!pin_page_for_read(from, &pte, &ptl)) { + char temp; + if (!atomic) + up_read(¤t->mm->mmap_sem); + if (__get_user(temp, (char __user *)from)) + goto out; + if (!atomic) + down_read(¤t->mm->mmap_sem); + } + + tocopy = (~(unsigned long)from & ~PAGE_MASK) + 1; + if (tocopy > n) + tocopy = n; + + ua_flags = uaccess_save_and_enable(); + memcpy(to, (const void *)from, tocopy); + uaccess_restore(ua_flags); + to += tocopy; + from += tocopy; + n -= tocopy; + + pte_unmap_unlock(pte, ptl); + } + if (!atomic) + up_read(¤t->mm->mmap_sem); + +out: + return n; +} + unsigned long arm_copy_to_user(void __user *to, const void *from, unsigned long n) { @@ -147,7 +243,7 @@ arm_copy_to_user(void __user *to, const void *from, unsigned long n) * With frame pointer disabled, tail call optimization kicks in * as well making this test almost invisible. */ - if (n < 64) { + if (n < COPY_TO_USER_THRESHOLD) { unsigned long ua_flags = uaccess_save_and_enable(); n = __copy_to_user_std(to, from, n); uaccess_restore(ua_flags); @@ -156,6 +252,26 @@ arm_copy_to_user(void __user *to, const void *from, unsigned long n) } return n; } + +unsigned long __must_check +arm_copy_from_user(void *to, const void __user *from, unsigned long n) +{ + /* + * This test is stubbed out of the main function above to keep + * the overhead for small copies low by avoiding a large + * register dump on the stack just to reload them right away. + * With frame pointer disabled, tail call optimization kicks in + * as well making this test almost invisible. + */ + if (n < COPY_TO_USER_THRESHOLD) { + unsigned long ua_flags = uaccess_save_and_enable(); + n = __copy_from_user_std(to, from, n); + uaccess_restore(ua_flags); + } else { + n = __copy_from_user_memcpy(to, from, n); + } + return n; +} static unsigned long noinline __clear_user_memset(void __user *addr, unsigned long n) diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig index 333dc3c2e5ffbb2c5ab8fcfb6115b6162643cf20..46b787a6474ffa857da9b663948863ecfb46e862 100644 --- a/arch/arm/mach-bcm/Kconfig +++ b/arch/arm/mach-bcm/Kconfig @@ -174,6 +174,13 @@ config ARCH_BCM_53573 The base chip is BCM53573 and there are some packaging modifications like BCM47189 and BCM47452. +config BCM2835_FAST_MEMCPY + bool "Enable optimized __copy_to_user and __copy_from_user" + depends on ARCH_BCM2835 && ARCH_MULTI_V6 + default y + help + Optimized versions of __copy_to_user and __copy_from_user for Pi1. + config ARCH_BCM_63XX bool "Broadcom BCM63xx DSL SoC" depends on ARCH_MULTI_V7 From 6b1b3a3ef75add34389b359f40c1940fc7cd63fe Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Thu, 25 Jun 2015 12:16:11 +0100 Subject: [PATCH 064/165] gpio-poweroff: Allow it to work on Raspberry Pi The Raspberry Pi firmware manages the power-down and reboot process. To do this it installs a pm_power_off handler, causing the gpio-poweroff module to abort the probe function. This patch introduces a "force" DT property that overrides that behaviour, and also adds a DT overlay to enable and control it. Note that running in an active-low configuration (DT parameter "active_low") requires a custom dt-blob.bin and probably won't allow a reboot without switching off, so an external inversion of the trigger signal may be preferable. --- drivers/power/reset/gpio-poweroff.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/power/reset/gpio-poweroff.c b/drivers/power/reset/gpio-poweroff.c index be3d81ff51cc3f510d85e4eed7a52960e51e7bc1..a030ae9fb1fca325061c093696e821869eedd320 100644 --- a/drivers/power/reset/gpio-poweroff.c +++ b/drivers/power/reset/gpio-poweroff.c @@ -49,9 +49,11 @@ static int gpio_poweroff_probe(struct platform_device *pdev) { bool input = false; enum gpiod_flags flags; + bool force = false; /* If a pm_power_off function has already been added, leave it alone */ - if (pm_power_off != NULL) { + force = of_property_read_bool(pdev->dev.of_node, "force"); + if (!force && (pm_power_off != NULL)) { dev_err(&pdev->dev, "%s: pm_power_off function already registered", __func__); From f314149d428e7a455693fc1083dbec50946deea2 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Tue, 14 Jul 2015 14:32:47 +0100 Subject: [PATCH 065/165] mfd: Add Raspberry Pi Sense HAT core driver --- drivers/input/joystick/Kconfig | 8 + drivers/input/joystick/Makefile | 1 + drivers/input/joystick/rpisense-js.c | 153 ++++++++++++++++ drivers/mfd/Kconfig | 8 + drivers/mfd/Makefile | 1 + drivers/mfd/rpisense-core.c | 157 +++++++++++++++++ drivers/video/fbdev/Kconfig | 13 ++ drivers/video/fbdev/Makefile | 1 + drivers/video/fbdev/rpisense-fb.c | 293 +++++++++++++++++++++++++++++++ include/linux/mfd/rpisense/core.h | 47 +++++ include/linux/mfd/rpisense/framebuffer.h | 32 ++++ include/linux/mfd/rpisense/joystick.h | 35 ++++ 12 files changed, 749 insertions(+) create mode 100644 drivers/input/joystick/rpisense-js.c create mode 100644 drivers/mfd/rpisense-core.c create mode 100644 drivers/video/fbdev/rpisense-fb.c create mode 100644 include/linux/mfd/rpisense/core.h create mode 100644 include/linux/mfd/rpisense/framebuffer.h create mode 100644 include/linux/mfd/rpisense/joystick.h diff --git a/drivers/input/joystick/Kconfig b/drivers/input/joystick/Kconfig index 4215b5382092c15d693e62de6e029626e9fa551d..4364d7c85543b4537c839df95cf5b524948a06c2 100644 --- a/drivers/input/joystick/Kconfig +++ b/drivers/input/joystick/Kconfig @@ -330,4 +330,12 @@ config JOYSTICK_MAPLE To compile this as a module choose M here: the module will be called maplecontrol. +config JOYSTICK_RPISENSE + tristate "Raspberry Pi Sense HAT joystick" + depends on GPIOLIB && INPUT + select MFD_RPISENSE_CORE + + help + This is the joystick driver for the Raspberry Pi Sense HAT + endif diff --git a/drivers/input/joystick/Makefile b/drivers/input/joystick/Makefile index 92dc0de9dfeda43171a901f96c40bebe0e7a5ae2..1758160374938dd150b8a380797b6decc00a64aa 100644 --- a/drivers/input/joystick/Makefile +++ b/drivers/input/joystick/Makefile @@ -32,4 +32,5 @@ obj-$(CONFIG_JOYSTICK_WARRIOR) += warrior.o obj-$(CONFIG_JOYSTICK_XPAD) += xpad.o obj-$(CONFIG_JOYSTICK_ZHENHUA) += zhenhua.o obj-$(CONFIG_JOYSTICK_WALKERA0701) += walkera0701.o +obj-$(CONFIG_JOYSTICK_RPISENSE) += rpisense-js.o diff --git a/drivers/input/joystick/rpisense-js.c b/drivers/input/joystick/rpisense-js.c new file mode 100644 index 0000000000000000000000000000000000000000..6a416769065d2198344792eb02d8e38da1d03fd4 --- /dev/null +++ b/drivers/input/joystick/rpisense-js.c @@ -0,0 +1,153 @@ +/* + * Raspberry Pi Sense HAT joystick driver + * http://raspberrypi.org + * + * Copyright (C) 2015 Raspberry Pi + * + * Author: Serge Schneider + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#include + +#include +#include + +static struct rpisense *rpisense; +static unsigned char keymap[5] = {KEY_DOWN, KEY_RIGHT, KEY_UP, KEY_ENTER, KEY_LEFT,}; + +static void keys_work_fn(struct work_struct *work) +{ + int i; + static s32 prev_keys; + struct rpisense_js *rpisense_js = &rpisense->joystick; + s32 keys = rpisense_reg_read(rpisense, RPISENSE_KEYS); + s32 changes = keys ^ prev_keys; + + prev_keys = keys; + for (i = 0; i < 5; i++) { + if (changes & 1) { + input_report_key(rpisense_js->keys_dev, + keymap[i], keys & 1); + } + changes >>= 1; + keys >>= 1; + } + input_sync(rpisense_js->keys_dev); +} + +static irqreturn_t keys_irq_handler(int irq, void *pdev) +{ + struct rpisense_js *rpisense_js = &rpisense->joystick; + + schedule_work(&rpisense_js->keys_work_s); + return IRQ_HANDLED; +} + +static int rpisense_js_probe(struct platform_device *pdev) +{ + int ret; + int i; + struct rpisense_js *rpisense_js; + + rpisense = rpisense_get_dev(); + rpisense_js = &rpisense->joystick; + + INIT_WORK(&rpisense_js->keys_work_s, keys_work_fn); + + rpisense_js->keys_dev = input_allocate_device(); + if (!rpisense_js->keys_dev) { + dev_err(&pdev->dev, "Could not allocate input device.\n"); + return -ENOMEM; + } + + rpisense_js->keys_dev->evbit[0] = BIT_MASK(EV_KEY); + for (i = 0; i < ARRAY_SIZE(keymap); i++) { + set_bit(keymap[i], + rpisense_js->keys_dev->keybit); + } + + rpisense_js->keys_dev->name = "Raspberry Pi Sense HAT Joystick"; + rpisense_js->keys_dev->phys = "rpi-sense-joy/input0"; + rpisense_js->keys_dev->id.bustype = BUS_I2C; + rpisense_js->keys_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP); + rpisense_js->keys_dev->keycode = keymap; + rpisense_js->keys_dev->keycodesize = sizeof(unsigned char); + rpisense_js->keys_dev->keycodemax = ARRAY_SIZE(keymap); + + ret = input_register_device(rpisense_js->keys_dev); + if (ret) { + dev_err(&pdev->dev, "Could not register input device.\n"); + goto err_keys_alloc; + } + + ret = gpiod_direction_input(rpisense_js->keys_desc); + if (ret) { + dev_err(&pdev->dev, "Could not set keys-int direction.\n"); + goto err_keys_reg; + } + + rpisense_js->keys_irq = gpiod_to_irq(rpisense_js->keys_desc); + if (rpisense_js->keys_irq < 0) { + dev_err(&pdev->dev, "Could not determine keys-int IRQ.\n"); + ret = rpisense_js->keys_irq; + goto err_keys_reg; + } + + ret = devm_request_irq(&pdev->dev, rpisense_js->keys_irq, + keys_irq_handler, IRQF_TRIGGER_RISING, + "keys", &pdev->dev); + if (ret) { + dev_err(&pdev->dev, "IRQ request failed.\n"); + goto err_keys_reg; + } + return 0; +err_keys_reg: + input_unregister_device(rpisense_js->keys_dev); +err_keys_alloc: + input_free_device(rpisense_js->keys_dev); + return ret; +} + +static int rpisense_js_remove(struct platform_device *pdev) +{ + struct rpisense_js *rpisense_js = &rpisense->joystick; + + input_unregister_device(rpisense_js->keys_dev); + input_free_device(rpisense_js->keys_dev); + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id rpisense_js_id[] = { + { .compatible = "rpi,rpi-sense-js" }, + { }, +}; +MODULE_DEVICE_TABLE(of, rpisense_js_id); +#endif + +static struct platform_device_id rpisense_js_device_id[] = { + { .name = "rpi-sense-js" }, + { }, +}; +MODULE_DEVICE_TABLE(platform, rpisense_js_device_id); + +static struct platform_driver rpisense_js_driver = { + .probe = rpisense_js_probe, + .remove = rpisense_js_remove, + .driver = { + .name = "rpi-sense-js", + .owner = THIS_MODULE, + }, +}; + +module_platform_driver(rpisense_js_driver); + +MODULE_DESCRIPTION("Raspberry Pi Sense HAT joystick driver"); +MODULE_AUTHOR("Serge Schneider "); +MODULE_LICENSE("GPL"); diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 55ecdfb74d317a3a5a7943a7d93a1cf37dd1fecb..6279545f979ca5e1461f24b21b49482db2c92583 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -10,6 +10,14 @@ config MFD_CORE select IRQ_DOMAIN default n +config MFD_RPISENSE_CORE + tristate "Raspberry Pi Sense HAT core functions" + depends on I2C + select MFD_CORE + help + This is the core driver for the Raspberry Pi Sense HAT. This provides + the necessary functions to communicate with the hardware. + config MFD_CS5535 tristate "AMD CS5535 and CS5536 southbridge core functions" select MFD_CORE diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 31ce07611a6fcbc9854a642587a559ee5d591059..2fae93a57832d636166d689f9a1de444648600f2 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -215,3 +215,4 @@ obj-$(CONFIG_MFD_ALTERA_A10SR) += altera-a10sr.o obj-$(CONFIG_MFD_SUN4I_GPADC) += sun4i-gpadc.o obj-$(CONFIG_MFD_STM32_TIMERS) += stm32-timers.o +obj-$(CONFIG_MFD_RPISENSE_CORE) += rpisense-core.o diff --git a/drivers/mfd/rpisense-core.c b/drivers/mfd/rpisense-core.c new file mode 100644 index 0000000000000000000000000000000000000000..eea9312dc96a496ce846b0c5a83e6e4f3be5ee1e --- /dev/null +++ b/drivers/mfd/rpisense-core.c @@ -0,0 +1,157 @@ +/* + * Raspberry Pi Sense HAT core driver + * http://raspberrypi.org + * + * Copyright (C) 2015 Raspberry Pi + * + * Author: Serge Schneider + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This driver is based on wm8350 implementation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +static struct rpisense *rpisense; + +static void rpisense_client_dev_register(struct rpisense *rpisense, + const char *name, + struct platform_device **pdev) +{ + int ret; + + *pdev = platform_device_alloc(name, -1); + if (*pdev == NULL) { + dev_err(rpisense->dev, "Failed to allocate %s\n", name); + return; + } + + (*pdev)->dev.parent = rpisense->dev; + platform_set_drvdata(*pdev, rpisense); + ret = platform_device_add(*pdev); + if (ret != 0) { + dev_err(rpisense->dev, "Failed to register %s: %d\n", + name, ret); + platform_device_put(*pdev); + *pdev = NULL; + } +} + +static int rpisense_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + int ret; + struct rpisense_js *rpisense_js; + + rpisense = devm_kzalloc(&i2c->dev, sizeof(struct rpisense), GFP_KERNEL); + if (rpisense == NULL) + return -ENOMEM; + + i2c_set_clientdata(i2c, rpisense); + rpisense->dev = &i2c->dev; + rpisense->i2c_client = i2c; + + ret = rpisense_reg_read(rpisense, RPISENSE_WAI); + if (ret > 0) { + if (ret != 's') + return -EINVAL; + } else { + return ret; + } + ret = rpisense_reg_read(rpisense, RPISENSE_VER); + if (ret < 0) + return ret; + + dev_info(rpisense->dev, + "Raspberry Pi Sense HAT firmware version %i\n", ret); + + rpisense_js = &rpisense->joystick; + rpisense_js->keys_desc = devm_gpiod_get(&i2c->dev, + "keys-int", GPIOD_IN); + if (IS_ERR(rpisense_js->keys_desc)) { + dev_warn(&i2c->dev, "Failed to get keys-int descriptor.\n"); + rpisense_js->keys_desc = gpio_to_desc(23); + if (rpisense_js->keys_desc == NULL) { + dev_err(&i2c->dev, "GPIO23 fallback failed.\n"); + return PTR_ERR(rpisense_js->keys_desc); + } + } + rpisense_client_dev_register(rpisense, "rpi-sense-js", + &(rpisense->joystick.pdev)); + rpisense_client_dev_register(rpisense, "rpi-sense-fb", + &(rpisense->framebuffer.pdev)); + + return 0; +} + +static int rpisense_remove(struct i2c_client *i2c) +{ + struct rpisense *rpisense = i2c_get_clientdata(i2c); + + platform_device_unregister(rpisense->joystick.pdev); + return 0; +} + +struct rpisense *rpisense_get_dev(void) +{ + return rpisense; +} +EXPORT_SYMBOL_GPL(rpisense_get_dev); + +s32 rpisense_reg_read(struct rpisense *rpisense, int reg) +{ + int ret = i2c_smbus_read_byte_data(rpisense->i2c_client, reg); + + if (ret < 0) + dev_err(rpisense->dev, "Read from reg %d failed\n", reg); + /* Due to the BCM270x I2C clock stretching bug, some values + * may have MSB set. Clear it to avoid incorrect values. + * */ + return ret & 0x7F; +} +EXPORT_SYMBOL_GPL(rpisense_reg_read); + +int rpisense_block_write(struct rpisense *rpisense, const char *buf, int count) +{ + int ret = i2c_master_send(rpisense->i2c_client, buf, count); + + if (ret < 0) + dev_err(rpisense->dev, "Block write failed\n"); + return ret; +} +EXPORT_SYMBOL_GPL(rpisense_block_write); + +static const struct i2c_device_id rpisense_i2c_id[] = { + { "rpi-sense", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, rpisense_i2c_id); + + +static struct i2c_driver rpisense_driver = { + .driver = { + .name = "rpi-sense", + .owner = THIS_MODULE, + }, + .probe = rpisense_probe, + .remove = rpisense_remove, + .id_table = rpisense_i2c_id, +}; + +module_i2c_driver(rpisense_driver); + +MODULE_DESCRIPTION("Raspberry Pi Sense HAT core driver"); +MODULE_AUTHOR("Serge Schneider "); +MODULE_LICENSE("GPL"); + diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index 2fae1676fafc16900d56622e3eef887e27b01eed..b49ef60bb304f3379a29eb8268ebc3a32829d557 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -2512,3 +2512,16 @@ config FB_SM712 This driver is also available as a module. The module will be called sm712fb. If you want to compile it as a module, say M here and read . + +config FB_RPISENSE + tristate "Raspberry Pi Sense HAT framebuffer" + depends on FB + select MFD_RPISENSE_CORE + select FB_SYS_FOPS + select FB_SYS_FILLRECT + select FB_SYS_COPYAREA + select FB_SYS_IMAGEBLIT + select FB_DEFERRED_IO + + help + This is the framebuffer driver for the Raspberry Pi Sense HAT diff --git a/drivers/video/fbdev/Makefile b/drivers/video/fbdev/Makefile index 8cd1193b98690b9c4f49098ab14389504d65af3a..c9f1754bf2a6796bf5555fabb9e80f8991cb83bc 100644 --- a/drivers/video/fbdev/Makefile +++ b/drivers/video/fbdev/Makefile @@ -147,6 +147,7 @@ obj-$(CONFIG_FB_DA8XX) += da8xx-fb.o obj-$(CONFIG_FB_MXS) += mxsfb.o obj-$(CONFIG_FB_SSD1307) += ssd1307fb.o obj-$(CONFIG_FB_SIMPLE) += simplefb.o +obj-$(CONFIG_FB_RPISENSE) += rpisense-fb.o # the test framebuffer is last obj-$(CONFIG_FB_VIRTUAL) += vfb.o diff --git a/drivers/video/fbdev/rpisense-fb.c b/drivers/video/fbdev/rpisense-fb.c new file mode 100644 index 0000000000000000000000000000000000000000..26432a5a0b4b4a5198768eceb1e34da99fe1efb2 --- /dev/null +++ b/drivers/video/fbdev/rpisense-fb.c @@ -0,0 +1,293 @@ +/* + * Raspberry Pi Sense HAT framebuffer driver + * http://raspberrypi.org + * + * Copyright (C) 2015 Raspberry Pi + * + * Author: Serge Schneider + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +static bool lowlight; +module_param(lowlight, bool, 0); +MODULE_PARM_DESC(lowlight, "Reduce LED matrix brightness to one third"); + +static struct rpisense *rpisense; + +struct rpisense_fb_param { + char __iomem *vmem; + u8 *vmem_work; + u32 vmemsize; + u8 *gamma; +}; + +static u8 gamma_default[32] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, + 0x02, 0x02, 0x03, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0E, 0x0F, 0x11, + 0x12, 0x14, 0x15, 0x17, 0x19, 0x1B, 0x1D, 0x1F,}; + +static u8 gamma_low[32] = {0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, + 0x03, 0x03, 0x03, 0x04, 0x04, 0x05, 0x05, 0x06, + 0x06, 0x07, 0x07, 0x08, 0x08, 0x09, 0x0A, 0x0A,}; + +static u8 gamma_user[32]; + +static struct rpisense_fb_param rpisense_fb_param = { + .vmem = NULL, + .vmemsize = 128, + .gamma = gamma_default, +}; + +static struct fb_deferred_io rpisense_fb_defio; + +static struct fb_fix_screeninfo rpisense_fb_fix = { + .id = "RPi-Sense FB", + .type = FB_TYPE_PACKED_PIXELS, + .visual = FB_VISUAL_TRUECOLOR, + .xpanstep = 0, + .ypanstep = 0, + .ywrapstep = 0, + .accel = FB_ACCEL_NONE, + .line_length = 16, +}; + +static struct fb_var_screeninfo rpisense_fb_var = { + .xres = 8, + .yres = 8, + .xres_virtual = 8, + .yres_virtual = 8, + .bits_per_pixel = 16, + .red = {11, 5, 0}, + .green = {5, 6, 0}, + .blue = {0, 5, 0}, +}; + +static ssize_t rpisense_fb_write(struct fb_info *info, + const char __user *buf, size_t count, + loff_t *ppos) +{ + ssize_t res = fb_sys_write(info, buf, count, ppos); + + schedule_delayed_work(&info->deferred_work, rpisense_fb_defio.delay); + return res; +} + +static void rpisense_fb_fillrect(struct fb_info *info, + const struct fb_fillrect *rect) +{ + sys_fillrect(info, rect); + schedule_delayed_work(&info->deferred_work, rpisense_fb_defio.delay); +} + +static void rpisense_fb_copyarea(struct fb_info *info, + const struct fb_copyarea *area) +{ + sys_copyarea(info, area); + schedule_delayed_work(&info->deferred_work, rpisense_fb_defio.delay); +} + +static void rpisense_fb_imageblit(struct fb_info *info, + const struct fb_image *image) +{ + sys_imageblit(info, image); + schedule_delayed_work(&info->deferred_work, rpisense_fb_defio.delay); +} + +static void rpisense_fb_deferred_io(struct fb_info *info, + struct list_head *pagelist) +{ + int i; + int j; + u8 *vmem_work = rpisense_fb_param.vmem_work; + u16 *mem = (u16 *)rpisense_fb_param.vmem; + u8 *gamma = rpisense_fb_param.gamma; + + vmem_work[0] = 0; + for (j = 0; j < 8; j++) { + for (i = 0; i < 8; i++) { + vmem_work[(j * 24) + i + 1] = + gamma[(mem[(j * 8) + i] >> 11) & 0x1F]; + vmem_work[(j * 24) + (i + 8) + 1] = + gamma[(mem[(j * 8) + i] >> 6) & 0x1F]; + vmem_work[(j * 24) + (i + 16) + 1] = + gamma[(mem[(j * 8) + i]) & 0x1F]; + } + } + rpisense_block_write(rpisense, vmem_work, 193); +} + +static struct fb_deferred_io rpisense_fb_defio = { + .delay = HZ/100, + .deferred_io = rpisense_fb_deferred_io, +}; + +static int rpisense_fb_ioctl(struct fb_info *info, unsigned int cmd, + unsigned long arg) +{ + switch (cmd) { + case SENSEFB_FBIOGET_GAMMA: + if (copy_to_user((void __user *) arg, rpisense_fb_param.gamma, + sizeof(u8[32]))) + return -EFAULT; + return 0; + case SENSEFB_FBIOSET_GAMMA: + if (copy_from_user(gamma_user, (void __user *)arg, + sizeof(u8[32]))) + return -EFAULT; + rpisense_fb_param.gamma = gamma_user; + schedule_delayed_work(&info->deferred_work, + rpisense_fb_defio.delay); + return 0; + case SENSEFB_FBIORESET_GAMMA: + switch (arg) { + case 0: + rpisense_fb_param.gamma = gamma_default; + break; + case 1: + rpisense_fb_param.gamma = gamma_low; + break; + case 2: + rpisense_fb_param.gamma = gamma_user; + break; + default: + return -EINVAL; + } + schedule_delayed_work(&info->deferred_work, + rpisense_fb_defio.delay); + break; + default: + return -EINVAL; + } + return 0; +} + +static struct fb_ops rpisense_fb_ops = { + .owner = THIS_MODULE, + .fb_read = fb_sys_read, + .fb_write = rpisense_fb_write, + .fb_fillrect = rpisense_fb_fillrect, + .fb_copyarea = rpisense_fb_copyarea, + .fb_imageblit = rpisense_fb_imageblit, + .fb_ioctl = rpisense_fb_ioctl, +}; + +static int rpisense_fb_probe(struct platform_device *pdev) +{ + struct fb_info *info; + int ret = -ENOMEM; + struct rpisense_fb *rpisense_fb; + + rpisense = rpisense_get_dev(); + rpisense_fb = &rpisense->framebuffer; + + rpisense_fb_param.vmem = vzalloc(rpisense_fb_param.vmemsize); + if (!rpisense_fb_param.vmem) + return ret; + + rpisense_fb_param.vmem_work = devm_kmalloc(&pdev->dev, 193, GFP_KERNEL); + if (!rpisense_fb_param.vmem_work) + goto err_malloc; + + info = framebuffer_alloc(0, &pdev->dev); + if (!info) { + dev_err(&pdev->dev, "Could not allocate framebuffer.\n"); + goto err_malloc; + } + rpisense_fb->info = info; + + rpisense_fb_fix.smem_start = (unsigned long)rpisense_fb_param.vmem; + rpisense_fb_fix.smem_len = rpisense_fb_param.vmemsize; + + info->fbops = &rpisense_fb_ops; + info->fix = rpisense_fb_fix; + info->var = rpisense_fb_var; + info->fbdefio = &rpisense_fb_defio; + info->flags = FBINFO_FLAG_DEFAULT | FBINFO_VIRTFB; + info->screen_base = rpisense_fb_param.vmem; + info->screen_size = rpisense_fb_param.vmemsize; + + if (lowlight) + rpisense_fb_param.gamma = gamma_low; + + fb_deferred_io_init(info); + + ret = register_framebuffer(info); + if (ret < 0) { + dev_err(&pdev->dev, "Could not register framebuffer.\n"); + goto err_fballoc; + } + + fb_info(info, "%s frame buffer device\n", info->fix.id); + schedule_delayed_work(&info->deferred_work, rpisense_fb_defio.delay); + return 0; +err_fballoc: + framebuffer_release(info); +err_malloc: + vfree(rpisense_fb_param.vmem); + return ret; +} + +static int rpisense_fb_remove(struct platform_device *pdev) +{ + struct rpisense_fb *rpisense_fb = &rpisense->framebuffer; + struct fb_info *info = rpisense_fb->info; + + if (info) { + unregister_framebuffer(info); + fb_deferred_io_cleanup(info); + framebuffer_release(info); + vfree(rpisense_fb_param.vmem); + } + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id rpisense_fb_id[] = { + { .compatible = "rpi,rpi-sense-fb" }, + { }, +}; +MODULE_DEVICE_TABLE(of, rpisense_fb_id); +#endif + +static struct platform_device_id rpisense_fb_device_id[] = { + { .name = "rpi-sense-fb" }, + { }, +}; +MODULE_DEVICE_TABLE(platform, rpisense_fb_device_id); + +static struct platform_driver rpisense_fb_driver = { + .probe = rpisense_fb_probe, + .remove = rpisense_fb_remove, + .driver = { + .name = "rpi-sense-fb", + .owner = THIS_MODULE, + }, +}; + +module_platform_driver(rpisense_fb_driver); + +MODULE_DESCRIPTION("Raspberry Pi Sense HAT framebuffer driver"); +MODULE_AUTHOR("Serge Schneider "); +MODULE_LICENSE("GPL"); + diff --git a/include/linux/mfd/rpisense/core.h b/include/linux/mfd/rpisense/core.h new file mode 100644 index 0000000000000000000000000000000000000000..4856aa3c8b0661647ec1b5466d3a8743c02b1ddb --- /dev/null +++ b/include/linux/mfd/rpisense/core.h @@ -0,0 +1,47 @@ +/* + * Raspberry Pi Sense HAT core driver + * http://raspberrypi.org + * + * Copyright (C) 2015 Raspberry Pi + * + * Author: Serge Schneider + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#ifndef __LINUX_MFD_RPISENSE_CORE_H_ +#define __LINUX_MFD_RPISENSE_CORE_H_ + +#include +#include + +/* + * Register values. + */ +#define RPISENSE_FB 0x00 +#define RPISENSE_WAI 0xF0 +#define RPISENSE_VER 0xF1 +#define RPISENSE_KEYS 0xF2 +#define RPISENSE_EE_WP 0xF3 + +#define RPISENSE_ID 's' + +struct rpisense { + struct device *dev; + struct i2c_client *i2c_client; + + /* Client devices */ + struct rpisense_js joystick; + struct rpisense_fb framebuffer; +}; + +struct rpisense *rpisense_get_dev(void); +s32 rpisense_reg_read(struct rpisense *rpisense, int reg); +int rpisense_reg_write(struct rpisense *rpisense, int reg, u16 val); +int rpisense_block_write(struct rpisense *rpisense, const char *buf, int count); + +#endif diff --git a/include/linux/mfd/rpisense/framebuffer.h b/include/linux/mfd/rpisense/framebuffer.h new file mode 100644 index 0000000000000000000000000000000000000000..2ba95d7eebaf9ccce910b43835286df94cb7d075 --- /dev/null +++ b/include/linux/mfd/rpisense/framebuffer.h @@ -0,0 +1,32 @@ +/* + * Raspberry Pi Sense HAT framebuffer driver + * http://raspberrypi.org + * + * Copyright (C) 2015 Raspberry Pi + * + * Author: Serge Schneider + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#ifndef __LINUX_RPISENSE_FB_H_ +#define __LINUX_RPISENSE_FB_H_ + +#define SENSEFB_FBIO_IOC_MAGIC 0xF1 + +#define SENSEFB_FBIOGET_GAMMA _IO(SENSEFB_FBIO_IOC_MAGIC, 0) +#define SENSEFB_FBIOSET_GAMMA _IO(SENSEFB_FBIO_IOC_MAGIC, 1) +#define SENSEFB_FBIORESET_GAMMA _IO(SENSEFB_FBIO_IOC_MAGIC, 2) + +struct rpisense; + +struct rpisense_fb { + struct platform_device *pdev; + struct fb_info *info; +}; + +#endif diff --git a/include/linux/mfd/rpisense/joystick.h b/include/linux/mfd/rpisense/joystick.h new file mode 100644 index 0000000000000000000000000000000000000000..56196dc2af10e464a1e3f98b028dca1c9c9cff39 --- /dev/null +++ b/include/linux/mfd/rpisense/joystick.h @@ -0,0 +1,35 @@ +/* + * Raspberry Pi Sense HAT joystick driver + * http://raspberrypi.org + * + * Copyright (C) 2015 Raspberry Pi + * + * Author: Serge Schneider + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#ifndef __LINUX_RPISENSE_JOYSTICK_H_ +#define __LINUX_RPISENSE_JOYSTICK_H_ + +#include +#include +#include +#include + +struct rpisense; + +struct rpisense_js { + struct platform_device *pdev; + struct input_dev *keys_dev; + struct gpio_desc *keys_desc; + struct work_struct keys_work_s; + int keys_irq; +}; + + +#endif From 49bcd5a2235a3263cb1eadcc2c8341bbb5ced3f7 Mon Sep 17 00:00:00 2001 From: Florian Meier Date: Fri, 22 Nov 2013 19:19:08 +0100 Subject: [PATCH 066/165] ASoC: Add support for HifiBerry DAC This adds a machine driver for the HifiBerry DAC. It is a sound card that can be stacked onto the Raspberry Pi. Signed-off-by: Florian Meier --- sound/soc/bcm/Kconfig | 9 ++- sound/soc/bcm/Makefile | 4 ++ sound/soc/bcm/hifiberry_dac.c | 124 ++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 136 insertions(+), 1 deletion(-) create mode 100644 sound/soc/bcm/hifiberry_dac.c diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index edf367100ebd2f1701f4a32b2bfcc14b6cf978d3..b4bba08106a128b11f4abcd84f3cd41207e9c083 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -16,4 +16,11 @@ config SND_SOC_CYGNUS Say Y if you want to add support for ASoC audio on Broadcom Cygnus chips (bcm958300, bcm958305, bcm911360) - If you don't know what to do here, say N. \ No newline at end of file + If you don't know what to do here, say N. + +config SND_BCM2708_SOC_HIFIBERRY_DAC + tristate "Support for HifiBerry DAC" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_PCM5102A + help + Say Y or M if you want to add support for HifiBerry DAC. diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index fc739d0078842680802389500dea19334da8fb7b..be80079de3cefbd52f4b78db20ee9a5d554b04c6 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -8,3 +8,7 @@ snd-soc-cygnus-objs := cygnus-pcm.o cygnus-ssp.o obj-$(CONFIG_SND_SOC_CYGNUS) += snd-soc-cygnus.o +# BCM2708 Machine Support +snd-soc-hifiberry-dac-objs := hifiberry_dac.o + +obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o diff --git a/sound/soc/bcm/hifiberry_dac.c b/sound/soc/bcm/hifiberry_dac.c new file mode 100644 index 0000000000000000000000000000000000000000..ee9f133953544629282631e5ef3f73fec857a7c5 --- /dev/null +++ b/sound/soc/bcm/hifiberry_dac.c @@ -0,0 +1,124 @@ +/* + * ASoC Driver for HifiBerry DAC + * + * Author: Florian Meier + * Copyright 2013 + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include + +#include +#include +#include +#include +#include + +static int snd_rpi_hifiberry_dac_init(struct snd_soc_pcm_runtime *rtd) +{ + return 0; +} + +static int snd_rpi_hifiberry_dac_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + + unsigned int sample_bits = + snd_pcm_format_physical_width(params_format(params)); + + return snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2); +} + +/* machine stream operations */ +static struct snd_soc_ops snd_rpi_hifiberry_dac_ops = { + .hw_params = snd_rpi_hifiberry_dac_hw_params, +}; + +static struct snd_soc_dai_link snd_rpi_hifiberry_dac_dai[] = { +{ + .name = "HifiBerry DAC", + .stream_name = "HifiBerry DAC HiFi", + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "pcm5102a-hifi", + .platform_name = "bcm2708-i2s.0", + .codec_name = "pcm5102a-codec", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + .ops = &snd_rpi_hifiberry_dac_ops, + .init = snd_rpi_hifiberry_dac_init, +}, +}; + +/* audio machine driver */ +static struct snd_soc_card snd_rpi_hifiberry_dac = { + .name = "snd_rpi_hifiberry_dac", + .driver_name = "HifiberryDac", + .owner = THIS_MODULE, + .dai_link = snd_rpi_hifiberry_dac_dai, + .num_links = ARRAY_SIZE(snd_rpi_hifiberry_dac_dai), +}; + +static int snd_rpi_hifiberry_dac_probe(struct platform_device *pdev) +{ + int ret = 0; + + snd_rpi_hifiberry_dac.dev = &pdev->dev; + + if (pdev->dev.of_node) { + struct device_node *i2s_node; + struct snd_soc_dai_link *dai = &snd_rpi_hifiberry_dac_dai[0]; + i2s_node = of_parse_phandle(pdev->dev.of_node, + "i2s-controller", 0); + + if (i2s_node) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + } + } + + ret = snd_soc_register_card(&snd_rpi_hifiberry_dac); + if (ret && ret != -EPROBE_DEFER) + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret); + + return ret; +} + +static int snd_rpi_hifiberry_dac_remove(struct platform_device *pdev) +{ + return snd_soc_unregister_card(&snd_rpi_hifiberry_dac); +} + +static const struct of_device_id snd_rpi_hifiberry_dac_of_match[] = { + { .compatible = "hifiberry,hifiberry-dac", }, + {}, +}; +MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_dac_of_match); + +static struct platform_driver snd_rpi_hifiberry_dac_driver = { + .driver = { + .name = "snd-hifiberry-dac", + .owner = THIS_MODULE, + .of_match_table = snd_rpi_hifiberry_dac_of_match, + }, + .probe = snd_rpi_hifiberry_dac_probe, + .remove = snd_rpi_hifiberry_dac_remove, +}; + +module_platform_driver(snd_rpi_hifiberry_dac_driver); + +MODULE_AUTHOR("Florian Meier "); +MODULE_DESCRIPTION("ASoC Driver for HifiBerry DAC"); +MODULE_LICENSE("GPL v2"); From 1bda67aead6bdf783fba311a76a8c7bc89998f1e Mon Sep 17 00:00:00 2001 From: Florian Meier Date: Mon, 25 Jan 2016 15:48:59 +0000 Subject: [PATCH 067/165] ASoC: Add support for Rpi-DAC --- sound/soc/bcm/Kconfig | 7 +++ sound/soc/bcm/Makefile | 2 + sound/soc/bcm/rpi-dac.c | 119 ++++++++++++++++++++++++++++++++++++++++++++ sound/soc/codecs/Kconfig | 5 ++ sound/soc/codecs/Makefile | 2 + sound/soc/codecs/pcm1794a.c | 69 +++++++++++++++++++++++++ 6 files changed, 204 insertions(+) create mode 100644 sound/soc/bcm/rpi-dac.c create mode 100644 sound/soc/codecs/pcm1794a.c diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index b4bba08106a128b11f4abcd84f3cd41207e9c083..3bd62878ed17681fcbe8fff1004b82b00f1f402b 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -24,3 +24,10 @@ config SND_BCM2708_SOC_HIFIBERRY_DAC select SND_SOC_PCM5102A help Say Y or M if you want to add support for HifiBerry DAC. + +config SND_BCM2708_SOC_RPI_DAC + tristate "Support for RPi-DAC" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_PCM1794A + help + Say Y or M if you want to add support for RPi-DAC. diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index be80079de3cefbd52f4b78db20ee9a5d554b04c6..09501910f8152b8d516e098433339b5fc2640d0f 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -10,5 +10,7 @@ obj-$(CONFIG_SND_SOC_CYGNUS) += snd-soc-cygnus.o # BCM2708 Machine Support snd-soc-hifiberry-dac-objs := hifiberry_dac.o +snd-soc-rpi-dac-objs := rpi-dac.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o +obj-$(CONFIG_SND_BCM2708_SOC_RPI_DAC) += snd-soc-rpi-dac.o diff --git a/sound/soc/bcm/rpi-dac.c b/sound/soc/bcm/rpi-dac.c new file mode 100644 index 0000000000000000000000000000000000000000..38224467cbab7d5be3be731e73e2cf787cd9908a --- /dev/null +++ b/sound/soc/bcm/rpi-dac.c @@ -0,0 +1,119 @@ +/* + * ASoC Driver for RPi-DAC. + * + * Author: Florian Meier + * Copyright 2013 + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include + +#include +#include +#include +#include +#include + +static int snd_rpi_rpi_dac_init(struct snd_soc_pcm_runtime *rtd) +{ + return 0; +} + +static int snd_rpi_rpi_dac_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + + return snd_soc_dai_set_bclk_ratio(cpu_dai, 32*2); +} + +/* machine stream operations */ +static struct snd_soc_ops snd_rpi_rpi_dac_ops = { + .hw_params = snd_rpi_rpi_dac_hw_params, +}; + +static struct snd_soc_dai_link snd_rpi_rpi_dac_dai[] = { +{ + .name = "RPi-DAC", + .stream_name = "RPi-DAC HiFi", + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "pcm1794a-hifi", + .platform_name = "bcm2708-i2s.0", + .codec_name = "pcm1794a-codec", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + .ops = &snd_rpi_rpi_dac_ops, + .init = snd_rpi_rpi_dac_init, +}, +}; + +/* audio machine driver */ +static struct snd_soc_card snd_rpi_rpi_dac = { + .name = "snd_rpi_rpi_dac", + .owner = THIS_MODULE, + .dai_link = snd_rpi_rpi_dac_dai, + .num_links = ARRAY_SIZE(snd_rpi_rpi_dac_dai), +}; + +static int snd_rpi_rpi_dac_probe(struct platform_device *pdev) +{ + int ret = 0; + + snd_rpi_rpi_dac.dev = &pdev->dev; + + if (pdev->dev.of_node) { + struct device_node *i2s_node; + struct snd_soc_dai_link *dai = &snd_rpi_rpi_dac_dai[0]; + i2s_node = of_parse_phandle(pdev->dev.of_node, "i2s-controller", 0); + + if (i2s_node) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + } + } + + ret = snd_soc_register_card(&snd_rpi_rpi_dac); + if (ret && ret != -EPROBE_DEFER) + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret); + + return ret; +} + +static int snd_rpi_rpi_dac_remove(struct platform_device *pdev) +{ + return snd_soc_unregister_card(&snd_rpi_rpi_dac); +} + +static const struct of_device_id snd_rpi_rpi_dac_of_match[] = { + { .compatible = "rpi,rpi-dac", }, + {}, +}; +MODULE_DEVICE_TABLE(of, snd_rpi_rpi_dac_of_match); + +static struct platform_driver snd_rpi_rpi_dac_driver = { + .driver = { + .name = "snd-rpi-dac", + .owner = THIS_MODULE, + .of_match_table = snd_rpi_rpi_dac_of_match, + }, + .probe = snd_rpi_rpi_dac_probe, + .remove = snd_rpi_rpi_dac_remove, +}; + +module_platform_driver(snd_rpi_rpi_dac_driver); + +MODULE_AUTHOR("Florian Meier "); +MODULE_DESCRIPTION("ASoC Driver for RPi-DAC"); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index e49e9da7f1f6e41028a0ca832e76e7dce0bc1c01..17b431dc7ea27b1938a1cfe8949e450933ba83e7 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -102,6 +102,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_PCM1681 if I2C select SND_SOC_PCM179X_I2C if I2C select SND_SOC_PCM179X_SPI if SPI_MASTER + select SND_SOC_PCM1794A if I2C select SND_SOC_PCM3008 select SND_SOC_PCM3168A_I2C if I2C select SND_SOC_PCM3168A_SPI if SPI_MASTER @@ -712,6 +713,10 @@ config SND_SOC_RT5616 tristate "Realtek RT5616 CODEC" depends on I2C +config SND_SOC_PCM1794A + tristate + depends on I2C + config SND_SOC_RT5631 tristate "Realtek ALC5631/RT5631 CODEC" depends on I2C diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index 1796cb987e712c78b0fe8f3aa8ec71177256b5b2..4dd919b509d11511807a3c3307ca9b472309c810 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -98,6 +98,7 @@ snd-soc-pcm1681-objs := pcm1681.o snd-soc-pcm179x-codec-objs := pcm179x.o snd-soc-pcm179x-i2c-objs := pcm179x-i2c.o snd-soc-pcm179x-spi-objs := pcm179x-spi.o +snd-soc-pcm1794a-objs := pcm1794a.o snd-soc-pcm3008-objs := pcm3008.o snd-soc-pcm3168a-objs := pcm3168a.o snd-soc-pcm3168a-i2c-objs := pcm3168a-i2c.o @@ -335,6 +336,7 @@ obj-$(CONFIG_SND_SOC_PCM5102A) += snd-soc-pcm5102a.o obj-$(CONFIG_SND_SOC_PCM512x) += snd-soc-pcm512x.o obj-$(CONFIG_SND_SOC_PCM512x_I2C) += snd-soc-pcm512x-i2c.o obj-$(CONFIG_SND_SOC_PCM512x_SPI) += snd-soc-pcm512x-spi.o +obj-$(CONFIG_SND_SOC_PCM1794A) += snd-soc-pcm1794a.o obj-$(CONFIG_SND_SOC_RL6231) += snd-soc-rl6231.o obj-$(CONFIG_SND_SOC_RL6347A) += snd-soc-rl6347a.o obj-$(CONFIG_SND_SOC_RT286) += snd-soc-rt286.o diff --git a/sound/soc/codecs/pcm1794a.c b/sound/soc/codecs/pcm1794a.c new file mode 100644 index 0000000000000000000000000000000000000000..afe1b419582aa40c4b2729d242bb13cd843e17f4 --- /dev/null +++ b/sound/soc/codecs/pcm1794a.c @@ -0,0 +1,69 @@ +/* + * Driver for the PCM1794A codec + * + * Author: Florian Meier + * Copyright 2013 + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + + +#include +#include +#include + +#include + +static struct snd_soc_dai_driver pcm1794a_dai = { + .name = "pcm1794a-hifi", + .playback = { + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S24_LE + }, +}; + +static struct snd_soc_codec_driver soc_codec_dev_pcm1794a; + +static int pcm1794a_probe(struct platform_device *pdev) +{ + return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_pcm1794a, + &pcm1794a_dai, 1); +} + +static int pcm1794a_remove(struct platform_device *pdev) +{ + snd_soc_unregister_codec(&pdev->dev); + return 0; +} + +static const struct of_device_id pcm1794a_of_match[] = { + { .compatible = "ti,pcm1794a", }, + { } +}; +MODULE_DEVICE_TABLE(of, pcm1794a_of_match); + +static struct platform_driver pcm1794a_codec_driver = { + .probe = pcm1794a_probe, + .remove = pcm1794a_remove, + .driver = { + .name = "pcm1794a-codec", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(pcm1794a_of_match), + }, +}; + +module_platform_driver(pcm1794a_codec_driver); + +MODULE_DESCRIPTION("ASoC PCM1794A codec driver"); +MODULE_AUTHOR("Florian Meier "); +MODULE_LICENSE("GPL v2"); From 1b6f27f9343dde5378cc30d5ac8e6d5188b6434d Mon Sep 17 00:00:00 2001 From: Daniel Matuschek Date: Wed, 15 Jan 2014 21:41:23 +0100 Subject: [PATCH 068/165] ASoC: wm8804: Implement MCLK configuration options, add 32bit support WM8804 can run with PLL frequencies of 256xfs and 128xfs for most sample rates. At 192kHz only 128xfs is supported. The existing driver selects 128xfs automatically for some lower samples rates. By using an additional mclk_div divider, it is now possible to control the behaviour. This allows using 256xfs PLL frequency on all sample rates up to 96kHz. It should allow lower jitter and better signal quality. The behavior has to be controlled by the sound card driver, because some sample frequency share the same setting. e.g. 192kHz and 96kHz use 24.576MHz master clock. The only difference is the MCLK divider. This also added support for 32bit data. Signed-off-by: Daniel Matuschek --- sound/soc/codecs/wm8804.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/wm8804.c b/sound/soc/codecs/wm8804.c index af95d648265b3e92e345101542b332aee35191d4..513f56ba132929662802d15cdc653af3d059a39c 100644 --- a/sound/soc/codecs/wm8804.c +++ b/sound/soc/codecs/wm8804.c @@ -304,6 +304,7 @@ static int wm8804_hw_params(struct snd_pcm_substream *substream, blen = 0x1; break; case 24: + case 32: blen = 0x2; break; default: @@ -515,7 +516,7 @@ static const struct snd_soc_dai_ops wm8804_dai_ops = { }; #define WM8804_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ - SNDRV_PCM_FMTBIT_S24_LE) + SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE) #define WM8804_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \ SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_64000 | \ @@ -543,7 +544,7 @@ static struct snd_soc_dai_driver wm8804_dai = { }; static const struct snd_soc_codec_driver soc_codec_dev_wm8804 = { - .idle_bias_off = true, + .idle_bias_off = false, .component_driver = { .dapm_widgets = wm8804_dapm_widgets, From 4203d8a7ecc11940a0ee32e252a4e8eb1e300be9 Mon Sep 17 00:00:00 2001 From: Daniel Matuschek Date: Wed, 15 Jan 2014 21:42:08 +0100 Subject: [PATCH 069/165] ASoC: BCM:Add support for HiFiBerry Digi. Driver is based on the patched WM8804 driver. Signed-off-by: Daniel Matuschek Add a parameter to turn off SPDIF output if no audio is playing This patch adds the paramater auto_shutdown_output to the kernel module. Default behaviour of the module is the same, but when auto_shutdown_output is set to 1, the SPDIF oputput will shutdown if no stream is playing. bugfix for 32kHz sample rate, was missing HiFiBerry Digi: set SPDIF status bits for sample rate The HiFiBerry Digi driver did not signal the sample rate in the SPDIF status bits. While this is optional, some DACs and receivers do not accept this signal. This patch adds the sample rate bits in the SPDIF status block. Added HiFiBerry Digi+ Pro driver Signed-off-by: Daniel Matuschek --- sound/soc/bcm/Kconfig | 7 ++ sound/soc/bcm/Makefile | 2 + sound/soc/bcm/hifiberry_digi.c | 276 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 285 insertions(+) create mode 100644 sound/soc/bcm/hifiberry_digi.c diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index 3bd62878ed17681fcbe8fff1004b82b00f1f402b..2169a619b60951d490bdbe7f6929499974efc721 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -25,6 +25,13 @@ config SND_BCM2708_SOC_HIFIBERRY_DAC help Say Y or M if you want to add support for HifiBerry DAC. +config SND_BCM2708_SOC_HIFIBERRY_DIGI + tristate "Support for HifiBerry Digi" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_WM8804 + help + Say Y or M if you want to add support for HifiBerry Digi S/PDIF output board. + config SND_BCM2708_SOC_RPI_DAC tristate "Support for RPi-DAC" depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index 09501910f8152b8d516e098433339b5fc2640d0f..862f00fb43bfb0b8dc75d577df47ea4e8336d00a 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -10,7 +10,9 @@ obj-$(CONFIG_SND_SOC_CYGNUS) += snd-soc-cygnus.o # BCM2708 Machine Support snd-soc-hifiberry-dac-objs := hifiberry_dac.o +snd-soc-hifiberry-digi-objs := hifiberry_digi.o snd-soc-rpi-dac-objs := rpi-dac.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o +obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI) += snd-soc-hifiberry-digi.o obj-$(CONFIG_SND_BCM2708_SOC_RPI_DAC) += snd-soc-rpi-dac.o diff --git a/sound/soc/bcm/hifiberry_digi.c b/sound/soc/bcm/hifiberry_digi.c new file mode 100644 index 0000000000000000000000000000000000000000..7620dd02de40b6d644ff038b445d375d8f632def --- /dev/null +++ b/sound/soc/bcm/hifiberry_digi.c @@ -0,0 +1,276 @@ +/* + * ASoC Driver for HifiBerry Digi + * + * Author: Daniel Matuschek + * based on the HifiBerry DAC driver by Florian Meier + * Copyright 2013 + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include + +#include +#include +#include +#include +#include +#include + +#include "../codecs/wm8804.h" + +static short int auto_shutdown_output = 0; +module_param(auto_shutdown_output, short, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP); +MODULE_PARM_DESC(auto_shutdown_output, "Shutdown SP/DIF output if playback is stopped"); + +#define CLK_44EN_RATE 22579200UL +#define CLK_48EN_RATE 24576000UL + +static bool snd_rpi_hifiberry_is_digipro; +static struct gpio_desc *snd_rpi_hifiberry_clk44gpio; +static struct gpio_desc *snd_rpi_hifiberry_clk48gpio; + +static int samplerate=44100; + +static uint32_t snd_rpi_hifiberry_digi_enable_clock(int sample_rate) +{ + switch (sample_rate) { + case 11025: + case 22050: + case 44100: + case 88200: + case 176400: + gpiod_set_value_cansleep(snd_rpi_hifiberry_clk44gpio, 1); + gpiod_set_value_cansleep(snd_rpi_hifiberry_clk48gpio, 0); + return CLK_44EN_RATE; + default: + gpiod_set_value_cansleep(snd_rpi_hifiberry_clk48gpio, 1); + gpiod_set_value_cansleep(snd_rpi_hifiberry_clk44gpio, 0); + return CLK_48EN_RATE; + } +} + + +static int snd_rpi_hifiberry_digi_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_codec *codec = rtd->codec; + + /* enable TX output */ + snd_soc_update_bits(codec, WM8804_PWRDN, 0x4, 0x0); + + /* Initialize Digi+ Pro hardware */ + if (snd_rpi_hifiberry_is_digipro) { + struct snd_soc_dai_link *dai = rtd->dai_link; + + dai->name = "HiFiBerry Digi+ Pro"; + dai->stream_name = "HiFiBerry Digi+ Pro HiFi"; + } + + return 0; +} + +static int snd_rpi_hifiberry_digi_startup(struct snd_pcm_substream *substream) { + /* turn on digital output */ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + snd_soc_update_bits(codec, WM8804_PWRDN, 0x3c, 0x00); + return 0; +} + +static void snd_rpi_hifiberry_digi_shutdown(struct snd_pcm_substream *substream) { + /* turn off output */ + if (auto_shutdown_output) { + /* turn off output */ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + snd_soc_update_bits(codec, WM8804_PWRDN, 0x3c, 0x3c); + } +} + + +static int snd_rpi_hifiberry_digi_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_soc_codec *codec = rtd->codec; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + + int sysclk = 27000000; /* This is fixed on this board */ + + long mclk_freq=0; + int mclk_div=1; + int sampling_freq=1; + + int ret; + + samplerate = params_rate(params); + + if (samplerate<=96000) { + mclk_freq=samplerate*256; + mclk_div=WM8804_MCLKDIV_256FS; + } else { + mclk_freq=samplerate*128; + mclk_div=WM8804_MCLKDIV_128FS; + } + + if (snd_rpi_hifiberry_is_digipro) + sysclk = snd_rpi_hifiberry_digi_enable_clock(samplerate); + + switch (samplerate) { + case 32000: + sampling_freq=0x03; + break; + case 44100: + sampling_freq=0x00; + break; + case 48000: + sampling_freq=0x02; + break; + case 88200: + sampling_freq=0x08; + break; + case 96000: + sampling_freq=0x0a; + break; + case 176400: + sampling_freq=0x0c; + break; + case 192000: + sampling_freq=0x0e; + break; + default: + dev_err(codec->dev, + "Failed to set WM8804 SYSCLK, unsupported samplerate %d\n", + samplerate); + } + + snd_soc_dai_set_clkdiv(codec_dai, WM8804_MCLK_DIV, mclk_div); + snd_soc_dai_set_pll(codec_dai, 0, 0, sysclk, mclk_freq); + + ret = snd_soc_dai_set_sysclk(codec_dai, WM8804_TX_CLKSRC_PLL, + sysclk, SND_SOC_CLOCK_OUT); + + if (ret < 0) { + dev_err(codec->dev, + "Failed to set WM8804 SYSCLK: %d\n", ret); + return ret; + } + + /* Enable TX output */ + snd_soc_update_bits(codec, WM8804_PWRDN, 0x4, 0x0); + + /* Power on */ + snd_soc_update_bits(codec, WM8804_PWRDN, 0x9, 0); + + /* set sampling frequency status bits */ + snd_soc_update_bits(codec, WM8804_SPDTX4, 0x0f, sampling_freq); + + return snd_soc_dai_set_bclk_ratio(cpu_dai,64); +} + +/* machine stream operations */ +static struct snd_soc_ops snd_rpi_hifiberry_digi_ops = { + .hw_params = snd_rpi_hifiberry_digi_hw_params, + .startup = snd_rpi_hifiberry_digi_startup, + .shutdown = snd_rpi_hifiberry_digi_shutdown, +}; + +static struct snd_soc_dai_link snd_rpi_hifiberry_digi_dai[] = { +{ + .name = "HifiBerry Digi", + .stream_name = "HifiBerry Digi HiFi", + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "wm8804-spdif", + .platform_name = "bcm2708-i2s.0", + .codec_name = "wm8804.1-003b", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, + .ops = &snd_rpi_hifiberry_digi_ops, + .init = snd_rpi_hifiberry_digi_init, +}, +}; + +/* audio machine driver */ +static struct snd_soc_card snd_rpi_hifiberry_digi = { + .name = "snd_rpi_hifiberry_digi", + .driver_name = "HifiberryDigi", + .owner = THIS_MODULE, + .dai_link = snd_rpi_hifiberry_digi_dai, + .num_links = ARRAY_SIZE(snd_rpi_hifiberry_digi_dai), +}; + +static int snd_rpi_hifiberry_digi_probe(struct platform_device *pdev) +{ + int ret = 0; + + snd_rpi_hifiberry_digi.dev = &pdev->dev; + + if (pdev->dev.of_node) { + struct device_node *i2s_node; + struct snd_soc_dai_link *dai = &snd_rpi_hifiberry_digi_dai[0]; + i2s_node = of_parse_phandle(pdev->dev.of_node, + "i2s-controller", 0); + + if (i2s_node) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + } + + snd_rpi_hifiberry_is_digipro = 1; + + snd_rpi_hifiberry_clk44gpio = + devm_gpiod_get(&pdev->dev, "clock44", GPIOD_OUT_LOW); + if (IS_ERR(snd_rpi_hifiberry_clk44gpio)) + snd_rpi_hifiberry_is_digipro = 0; + + snd_rpi_hifiberry_clk48gpio = + devm_gpiod_get(&pdev->dev, "clock48", GPIOD_OUT_LOW); + if (IS_ERR(snd_rpi_hifiberry_clk48gpio)) + snd_rpi_hifiberry_is_digipro = 0; + + } + + ret = snd_soc_register_card(&snd_rpi_hifiberry_digi); + if (ret && ret != -EPROBE_DEFER) + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret); + + return ret; +} + +static int snd_rpi_hifiberry_digi_remove(struct platform_device *pdev) +{ + return snd_soc_unregister_card(&snd_rpi_hifiberry_digi); +} + +static const struct of_device_id snd_rpi_hifiberry_digi_of_match[] = { + { .compatible = "hifiberry,hifiberry-digi", }, + {}, +}; +MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_digi_of_match); + +static struct platform_driver snd_rpi_hifiberry_digi_driver = { + .driver = { + .name = "snd-hifiberry-digi", + .owner = THIS_MODULE, + .of_match_table = snd_rpi_hifiberry_digi_of_match, + }, + .probe = snd_rpi_hifiberry_digi_probe, + .remove = snd_rpi_hifiberry_digi_remove, +}; + +module_platform_driver(snd_rpi_hifiberry_digi_driver); + +MODULE_AUTHOR("Daniel Matuschek "); +MODULE_DESCRIPTION("ASoC Driver for HifiBerry Digi"); +MODULE_LICENSE("GPL v2"); From ec2fa327814dd534f249f561f4b7733474018e08 Mon Sep 17 00:00:00 2001 From: Gordon Garrity Date: Sat, 8 Mar 2014 16:56:57 +0000 Subject: [PATCH 070/165] Add IQaudIO Sound Card support for Raspberry Pi Set a limit of 0dB on Digital Volume Control The main volume control in the PCM512x DAC has a range up to +24dB. This is dangerously loud and can potentially cause massive clipping in the output stages. Therefore this sets a sensible limit of 0dB for this control. Allow up to 24dB digital gain to be applied when using IQAudIO DAC+ 24db_digital_gain DT param can be used to specify that PCM512x codec "Digital" volume control should not be limited to 0dB gain, and if specified will allow the full 24dB gain. Modify IQAudIO DAC+ ASoC driver to set card/dai config from dt Add the ability to set the card name, dai name and dai stream name, from dt config. Signed-off-by: DigitalDreamtime IQaudIO: auto-mute for AMP+ and DigiAMP+ IQAudIO amplifier mute via GPIO22. Add dt params for "one-shot" unmute and auto mute. Revision 2, auto mute implementing HiassofT suggestion to mute/unmute using set_bias_level, rather than startup/shutdown.... "By default DAPM waits 5 seconds (pmdown_time) before shutting down playback streams so a close/stop immediately followed by open/start doesn't trigger an amp mute+unmute." Tested on both AMP+ (via DAC+) and DigiAMP+, with both options... dtoverlay=iqaudio-dacplus,unmute_amp "one-shot" unmute when kernel module loads. dtoverlay=iqaudio-dacplus,auto_mute_amp Unmute amp when ALSA device opened by a client. Mute, with 5 second delay when ALSA device closed. (Re-opening the device within the 5 second close window, will cancel mute.) Revision 4, using gpiod. Revision 5, clean-up formatting before adding mute code. - Convert tab plus 4 space formatting to 2x tab - Remove '// NOT USED' commented code Revision 6, don't attempt to "one-shot" unmute amp, unless card is successfully registered. Signed-off-by: DigitalDreamtime --- sound/soc/bcm/Kconfig | 7 ++ sound/soc/bcm/Makefile | 2 + sound/soc/bcm/iqaudio-dac.c | 239 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 248 insertions(+) create mode 100644 sound/soc/bcm/iqaudio-dac.c diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index 2169a619b60951d490bdbe7f6929499974efc721..f58d7059dd2a05aa7948272d4378898be85ea92d 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -38,3 +38,10 @@ config SND_BCM2708_SOC_RPI_DAC select SND_SOC_PCM1794A help Say Y or M if you want to add support for RPi-DAC. + +config SND_BCM2708_SOC_IQAUDIO_DAC + tristate "Support for IQaudIO-DAC" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_PCM512x_I2C + help + Say Y or M if you want to add support for IQaudIO-DAC. diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index 862f00fb43bfb0b8dc75d577df47ea4e8336d00a..fcac518ca9b46ab2074fc859b8d2f1ff850ebc19 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -12,7 +12,9 @@ obj-$(CONFIG_SND_SOC_CYGNUS) += snd-soc-cygnus.o snd-soc-hifiberry-dac-objs := hifiberry_dac.o snd-soc-hifiberry-digi-objs := hifiberry_digi.o snd-soc-rpi-dac-objs := rpi-dac.o +snd-soc-iqaudio-dac-objs := iqaudio-dac.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI) += snd-soc-hifiberry-digi.o obj-$(CONFIG_SND_BCM2708_SOC_RPI_DAC) += snd-soc-rpi-dac.o +obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o diff --git a/sound/soc/bcm/iqaudio-dac.c b/sound/soc/bcm/iqaudio-dac.c new file mode 100644 index 0000000000000000000000000000000000000000..1ee4097c846376666775272ed692ca330881b0cb --- /dev/null +++ b/sound/soc/bcm/iqaudio-dac.c @@ -0,0 +1,239 @@ +/* + * ASoC Driver for IQaudIO DAC + * + * Author: Florian Meier + * Copyright 2013 + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include + +#include +#include +#include +#include +#include + +static bool digital_gain_0db_limit = true; + +static struct gpio_desc *mute_gpio; + +static int snd_rpi_iqaudio_dac_init(struct snd_soc_pcm_runtime *rtd) +{ + if (digital_gain_0db_limit) + { + int ret; + struct snd_soc_card *card = rtd->card; + + ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207); + if (ret < 0) + dev_warn(card->dev, "Failed to set volume limit: %d\n", ret); + } + + return 0; +} + +static int snd_rpi_iqaudio_dac_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + + unsigned int sample_bits = + snd_pcm_format_physical_width(params_format(params)); + + return snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2); +} + +static void snd_rpi_iqaudio_gpio_mute(struct snd_soc_card *card) +{ + if (mute_gpio) { + dev_info(card->dev, "%s: muting amp using GPIO22\n", + __func__); + gpiod_set_value_cansleep(mute_gpio, 0); + } +} + +static void snd_rpi_iqaudio_gpio_unmute(struct snd_soc_card *card) +{ + if (mute_gpio) { + dev_info(card->dev, "%s: un-muting amp using GPIO22\n", + __func__); + gpiod_set_value_cansleep(mute_gpio, 1); + } +} + +static int snd_rpi_iqaudio_set_bias_level(struct snd_soc_card *card, + struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level) +{ + struct snd_soc_pcm_runtime *rtd; + struct snd_soc_dai *codec_dai; + + rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); + codec_dai = rtd->codec_dai; + + if (dapm->dev != codec_dai->dev) + return 0; + + switch (level) { + case SND_SOC_BIAS_PREPARE: + if (dapm->bias_level != SND_SOC_BIAS_STANDBY) + break; + + /* UNMUTE AMP */ + snd_rpi_iqaudio_gpio_unmute(card); + + break; + case SND_SOC_BIAS_STANDBY: + if (dapm->bias_level != SND_SOC_BIAS_PREPARE) + break; + + /* MUTE AMP */ + snd_rpi_iqaudio_gpio_mute(card); + + break; + default: + break; + } + + return 0; +} + +/* machine stream operations */ +static struct snd_soc_ops snd_rpi_iqaudio_dac_ops = { + .hw_params = snd_rpi_iqaudio_dac_hw_params, +}; + +static struct snd_soc_dai_link snd_rpi_iqaudio_dac_dai[] = { +{ + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "pcm512x-hifi", + .platform_name = "bcm2708-i2s.0", + .codec_name = "pcm512x.1-004c", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + .ops = &snd_rpi_iqaudio_dac_ops, + .init = snd_rpi_iqaudio_dac_init, +}, +}; + +/* audio machine driver */ +static struct snd_soc_card snd_rpi_iqaudio_dac = { + .owner = THIS_MODULE, + .dai_link = snd_rpi_iqaudio_dac_dai, + .num_links = ARRAY_SIZE(snd_rpi_iqaudio_dac_dai), +}; + +static int snd_rpi_iqaudio_dac_probe(struct platform_device *pdev) +{ + int ret = 0; + bool gpio_unmute = false; + + snd_rpi_iqaudio_dac.dev = &pdev->dev; + + if (pdev->dev.of_node) { + struct device_node *i2s_node; + struct snd_soc_card *card = &snd_rpi_iqaudio_dac; + struct snd_soc_dai_link *dai = &snd_rpi_iqaudio_dac_dai[0]; + bool auto_gpio_mute = false; + + i2s_node = of_parse_phandle(pdev->dev.of_node, + "i2s-controller", 0); + if (i2s_node) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + } + + digital_gain_0db_limit = !of_property_read_bool( + pdev->dev.of_node, "iqaudio,24db_digital_gain"); + + if (of_property_read_string(pdev->dev.of_node, "card_name", + &card->name)) + card->name = "IQaudIODAC"; + + if (of_property_read_string(pdev->dev.of_node, "dai_name", + &dai->name)) + dai->name = "IQaudIO DAC"; + + if (of_property_read_string(pdev->dev.of_node, + "dai_stream_name", &dai->stream_name)) + dai->stream_name = "IQaudIO DAC HiFi"; + + /* gpio_unmute - one time unmute amp using GPIO */ + gpio_unmute = of_property_read_bool(pdev->dev.of_node, + "iqaudio-dac,unmute-amp"); + + /* auto_gpio_mute - mute/unmute amp using GPIO */ + auto_gpio_mute = of_property_read_bool(pdev->dev.of_node, + "iqaudio-dac,auto-mute-amp"); + + if (auto_gpio_mute || gpio_unmute) { + mute_gpio = devm_gpiod_get_optional(&pdev->dev, "mute", + GPIOD_OUT_LOW); + if (IS_ERR(mute_gpio)) { + ret = PTR_ERR(mute_gpio); + dev_err(&pdev->dev, + "Failed to get mute gpio: %d\n", ret); + return ret; + } + + if (auto_gpio_mute && mute_gpio) + snd_rpi_iqaudio_dac.set_bias_level = + snd_rpi_iqaudio_set_bias_level; + } + } + + ret = snd_soc_register_card(&snd_rpi_iqaudio_dac); + if (ret) { + if (ret != -EPROBE_DEFER) + dev_err(&pdev->dev, + "snd_soc_register_card() failed: %d\n", ret); + return ret; + } + + if (gpio_unmute && mute_gpio) + snd_rpi_iqaudio_gpio_unmute(&snd_rpi_iqaudio_dac); + + return 0; +} + +static int snd_rpi_iqaudio_dac_remove(struct platform_device *pdev) +{ + snd_rpi_iqaudio_gpio_mute(&snd_rpi_iqaudio_dac); + + return snd_soc_unregister_card(&snd_rpi_iqaudio_dac); +} + +static const struct of_device_id iqaudio_of_match[] = { + { .compatible = "iqaudio,iqaudio-dac", }, + {}, +}; +MODULE_DEVICE_TABLE(of, iqaudio_of_match); + +static struct platform_driver snd_rpi_iqaudio_dac_driver = { + .driver = { + .name = "snd-rpi-iqaudio-dac", + .owner = THIS_MODULE, + .of_match_table = iqaudio_of_match, + }, + .probe = snd_rpi_iqaudio_dac_probe, + .remove = snd_rpi_iqaudio_dac_remove, +}; + +module_platform_driver(snd_rpi_iqaudio_dac_driver); + +MODULE_AUTHOR("Florian Meier "); +MODULE_DESCRIPTION("ASoC Driver for IQAudio DAC"); +MODULE_LICENSE("GPL v2"); From 98d8d9f0157769a6accc0f9a97c0858c049ce420 Mon Sep 17 00:00:00 2001 From: Daniel Matuschek Date: Mon, 4 Aug 2014 10:06:56 +0200 Subject: [PATCH 071/165] Added support for HiFiBerry DAC+ The driver is based on the HiFiBerry DAC driver. However HiFiBerry DAC+ uses a different codec chip (PCM5122), therefore a new driver is necessary. Add support for the HiFiBerry DAC+ Pro. The HiFiBerry DAC+ and DAC+ Pro products both use the existing bcm sound driver with the DAC+ Pro having a special clock device driver representing the two high precision oscillators. An addition bug fix is included for the PCM512x codec where by the physical size of the sample frame is used in the calculation of the LRCK divisor as it was found to be wrong when using 24-bit depth sample contained in a little endian 4-byte sample frame. Limit PCM512x "Digital" gain to 0dB by default with HiFiBerry DAC+ 24db_digital_gain DT param can be used to specify that PCM512x codec "Digital" volume control should not be limited to 0dB gain, and if specified will allow the full 24dB gain. Add dt param to force HiFiBerry DAC+ Pro into slave mode "dtoverlay=hifiberry-dacplus,slave" Add 'slave' param to use HiFiBerry DAC+ Pro in slave mode, with Pi as master for bit and frame clock. Signed-off-by: DigitalDreamtime --- drivers/clk/Makefile | 1 + drivers/clk/clk-hifiberry-dacpro.c | 160 +++++++++++++++++ sound/soc/bcm/Kconfig | 7 + sound/soc/bcm/Makefile | 2 + sound/soc/bcm/hifiberry_dacplus.c | 359 +++++++++++++++++++++++++++++++++++++ sound/soc/codecs/pcm512x.c | 3 +- 6 files changed, 531 insertions(+), 1 deletion(-) create mode 100644 drivers/clk/clk-hifiberry-dacpro.c create mode 100644 sound/soc/bcm/hifiberry_dacplus.c diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index 92c12b86c2e86f2022faeb434bb961f2410faa3e..c901caf8988417053d19916172cf8eb8468a59fd 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile @@ -26,6 +26,7 @@ obj-$(CONFIG_ARCH_CLPS711X) += clk-clps711x.o obj-$(CONFIG_COMMON_CLK_CS2000_CP) += clk-cs2000-cp.o obj-$(CONFIG_ARCH_EFM32) += clk-efm32gg.o obj-$(CONFIG_ARCH_HIGHBANK) += clk-highbank.o +obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += clk-hifiberry-dacpro.o obj-$(CONFIG_COMMON_CLK_MAX77686) += clk-max77686.o obj-$(CONFIG_ARCH_MB86S7X) += clk-mb86s7x.o obj-$(CONFIG_ARCH_MOXART) += clk-moxart.o diff --git a/drivers/clk/clk-hifiberry-dacpro.c b/drivers/clk/clk-hifiberry-dacpro.c new file mode 100644 index 0000000000000000000000000000000000000000..99cee2b1706c43170b4fc35c0023349b9019606c --- /dev/null +++ b/drivers/clk/clk-hifiberry-dacpro.c @@ -0,0 +1,160 @@ +/* + * Clock Driver for HiFiBerry DAC Pro + * + * Author: Stuart MacLean + * Copyright 2015 + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include + +/* Clock rate of CLK44EN attached to GPIO6 pin */ +#define CLK_44EN_RATE 22579200UL +/* Clock rate of CLK48EN attached to GPIO3 pin */ +#define CLK_48EN_RATE 24576000UL + +/** + * struct hifiberry_dacpro_clk - Common struct to the HiFiBerry DAC Pro + * @hw: clk_hw for the common clk framework + * @mode: 0 => CLK44EN, 1 => CLK48EN + */ +struct clk_hifiberry_hw { + struct clk_hw hw; + uint8_t mode; +}; + +#define to_hifiberry_clk(_hw) container_of(_hw, struct clk_hifiberry_hw, hw) + +static const struct of_device_id clk_hifiberry_dacpro_dt_ids[] = { + { .compatible = "hifiberry,dacpro-clk",}, + { } +}; +MODULE_DEVICE_TABLE(of, clk_hifiberry_dacpro_dt_ids); + +static unsigned long clk_hifiberry_dacpro_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + return (to_hifiberry_clk(hw)->mode == 0) ? CLK_44EN_RATE : + CLK_48EN_RATE; +} + +static long clk_hifiberry_dacpro_round_rate(struct clk_hw *hw, + unsigned long rate, unsigned long *parent_rate) +{ + long actual_rate; + + if (rate <= CLK_44EN_RATE) { + actual_rate = (long)CLK_44EN_RATE; + } else if (rate >= CLK_48EN_RATE) { + actual_rate = (long)CLK_48EN_RATE; + } else { + long diff44Rate = (long)(rate - CLK_44EN_RATE); + long diff48Rate = (long)(CLK_48EN_RATE - rate); + + if (diff44Rate < diff48Rate) + actual_rate = (long)CLK_44EN_RATE; + else + actual_rate = (long)CLK_48EN_RATE; + } + return actual_rate; +} + + +static int clk_hifiberry_dacpro_set_rate(struct clk_hw *hw, + unsigned long rate, unsigned long parent_rate) +{ + unsigned long actual_rate; + struct clk_hifiberry_hw *clk = to_hifiberry_clk(hw); + + actual_rate = (unsigned long)clk_hifiberry_dacpro_round_rate(hw, rate, + &parent_rate); + clk->mode = (actual_rate == CLK_44EN_RATE) ? 0 : 1; + return 0; +} + + +const struct clk_ops clk_hifiberry_dacpro_rate_ops = { + .recalc_rate = clk_hifiberry_dacpro_recalc_rate, + .round_rate = clk_hifiberry_dacpro_round_rate, + .set_rate = clk_hifiberry_dacpro_set_rate, +}; + +static int clk_hifiberry_dacpro_probe(struct platform_device *pdev) +{ + int ret; + struct clk_hifiberry_hw *proclk; + struct clk *clk; + struct device *dev; + struct clk_init_data init; + + dev = &pdev->dev; + + proclk = kzalloc(sizeof(struct clk_hifiberry_hw), GFP_KERNEL); + if (!proclk) + return -ENOMEM; + + init.name = "clk-hifiberry-dacpro"; + init.ops = &clk_hifiberry_dacpro_rate_ops; + init.flags = CLK_IS_BASIC; + init.parent_names = NULL; + init.num_parents = 0; + + proclk->mode = 0; + proclk->hw.init = &init; + + clk = devm_clk_register(dev, &proclk->hw); + if (!IS_ERR(clk)) { + ret = of_clk_add_provider(dev->of_node, of_clk_src_simple_get, + clk); + } else { + dev_err(dev, "Fail to register clock driver\n"); + kfree(proclk); + ret = PTR_ERR(clk); + } + return ret; +} + +static int clk_hifiberry_dacpro_remove(struct platform_device *pdev) +{ + of_clk_del_provider(pdev->dev.of_node); + return 0; +} + +static struct platform_driver clk_hifiberry_dacpro_driver = { + .probe = clk_hifiberry_dacpro_probe, + .remove = clk_hifiberry_dacpro_remove, + .driver = { + .name = "clk-hifiberry-dacpro", + .of_match_table = clk_hifiberry_dacpro_dt_ids, + }, +}; + +static int __init clk_hifiberry_dacpro_init(void) +{ + return platform_driver_register(&clk_hifiberry_dacpro_driver); +} +core_initcall(clk_hifiberry_dacpro_init); + +static void __exit clk_hifiberry_dacpro_exit(void) +{ + platform_driver_unregister(&clk_hifiberry_dacpro_driver); +} +module_exit(clk_hifiberry_dacpro_exit); + +MODULE_DESCRIPTION("HiFiBerry DAC Pro clock driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:clk-hifiberry-dacpro"); diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index f58d7059dd2a05aa7948272d4378898be85ea92d..3580a12f865975e920ff86697849b137b41bae62 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -25,6 +25,13 @@ config SND_BCM2708_SOC_HIFIBERRY_DAC help Say Y or M if you want to add support for HifiBerry DAC. +config SND_BCM2708_SOC_HIFIBERRY_DACPLUS + tristate "Support for HifiBerry DAC+" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_PCM512x + help + Say Y or M if you want to add support for HifiBerry DAC+. + config SND_BCM2708_SOC_HIFIBERRY_DIGI tristate "Support for HifiBerry Digi" depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index fcac518ca9b46ab2074fc859b8d2f1ff850ebc19..203afc03167acbcad15e836209956bc5ab151157 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -10,11 +10,13 @@ obj-$(CONFIG_SND_SOC_CYGNUS) += snd-soc-cygnus.o # BCM2708 Machine Support snd-soc-hifiberry-dac-objs := hifiberry_dac.o +snd-soc-hifiberry-dacplus-objs := hifiberry_dacplus.o snd-soc-hifiberry-digi-objs := hifiberry_digi.o snd-soc-rpi-dac-objs := rpi-dac.o snd-soc-iqaudio-dac-objs := iqaudio-dac.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o +obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI) += snd-soc-hifiberry-digi.o obj-$(CONFIG_SND_BCM2708_SOC_RPI_DAC) += snd-soc-rpi-dac.o obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o diff --git a/sound/soc/bcm/hifiberry_dacplus.c b/sound/soc/bcm/hifiberry_dacplus.c new file mode 100644 index 0000000000000000000000000000000000000000..b7b401cbe2b0d510d8b12d2dda6d5ff1fff42eb0 --- /dev/null +++ b/sound/soc/bcm/hifiberry_dacplus.c @@ -0,0 +1,359 @@ +/* + * ASoC Driver for HiFiBerry DAC+ / DAC Pro + * + * Author: Daniel Matuschek, Stuart MacLean + * Copyright 2014-2015 + * based on code by Florian Meier + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#include "../codecs/pcm512x.h" + +#define HIFIBERRY_DACPRO_NOCLOCK 0 +#define HIFIBERRY_DACPRO_CLK44EN 1 +#define HIFIBERRY_DACPRO_CLK48EN 2 + +struct pcm512x_priv { + struct regmap *regmap; + struct clk *sclk; +}; + +/* Clock rate of CLK44EN attached to GPIO6 pin */ +#define CLK_44EN_RATE 22579200UL +/* Clock rate of CLK48EN attached to GPIO3 pin */ +#define CLK_48EN_RATE 24576000UL + +static bool slave; +static bool snd_rpi_hifiberry_is_dacpro; +static bool digital_gain_0db_limit = true; + +static void snd_rpi_hifiberry_dacplus_select_clk(struct snd_soc_codec *codec, + int clk_id) +{ + switch (clk_id) { + case HIFIBERRY_DACPRO_NOCLOCK: + snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x24, 0x00); + break; + case HIFIBERRY_DACPRO_CLK44EN: + snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x24, 0x20); + break; + case HIFIBERRY_DACPRO_CLK48EN: + snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x24, 0x04); + break; + } +} + +static void snd_rpi_hifiberry_dacplus_clk_gpio(struct snd_soc_codec *codec) +{ + snd_soc_update_bits(codec, PCM512x_GPIO_EN, 0x24, 0x24); + snd_soc_update_bits(codec, PCM512x_GPIO_OUTPUT_3, 0x0f, 0x02); + snd_soc_update_bits(codec, PCM512x_GPIO_OUTPUT_6, 0x0f, 0x02); +} + +static bool snd_rpi_hifiberry_dacplus_is_sclk(struct snd_soc_codec *codec) +{ + int sck; + + sck = snd_soc_read(codec, PCM512x_RATE_DET_4); + return (!(sck & 0x40)); +} + +static bool snd_rpi_hifiberry_dacplus_is_sclk_sleep( + struct snd_soc_codec *codec) +{ + msleep(2); + return snd_rpi_hifiberry_dacplus_is_sclk(codec); +} + +static bool snd_rpi_hifiberry_dacplus_is_pro_card(struct snd_soc_codec *codec) +{ + bool isClk44EN, isClk48En, isNoClk; + + snd_rpi_hifiberry_dacplus_clk_gpio(codec); + + snd_rpi_hifiberry_dacplus_select_clk(codec, HIFIBERRY_DACPRO_CLK44EN); + isClk44EN = snd_rpi_hifiberry_dacplus_is_sclk_sleep(codec); + + snd_rpi_hifiberry_dacplus_select_clk(codec, HIFIBERRY_DACPRO_NOCLOCK); + isNoClk = snd_rpi_hifiberry_dacplus_is_sclk_sleep(codec); + + snd_rpi_hifiberry_dacplus_select_clk(codec, HIFIBERRY_DACPRO_CLK48EN); + isClk48En = snd_rpi_hifiberry_dacplus_is_sclk_sleep(codec); + + return (isClk44EN && isClk48En && !isNoClk); +} + +static int snd_rpi_hifiberry_dacplus_clk_for_rate(int sample_rate) +{ + int type; + + switch (sample_rate) { + case 11025: + case 22050: + case 44100: + case 88200: + case 176400: + type = HIFIBERRY_DACPRO_CLK44EN; + break; + default: + type = HIFIBERRY_DACPRO_CLK48EN; + break; + } + return type; +} + +static void snd_rpi_hifiberry_dacplus_set_sclk(struct snd_soc_codec *codec, + int sample_rate) +{ + struct pcm512x_priv *pcm512x = snd_soc_codec_get_drvdata(codec); + + if (!IS_ERR(pcm512x->sclk)) { + int ctype; + + ctype = snd_rpi_hifiberry_dacplus_clk_for_rate(sample_rate); + clk_set_rate(pcm512x->sclk, (ctype == HIFIBERRY_DACPRO_CLK44EN) + ? CLK_44EN_RATE : CLK_48EN_RATE); + snd_rpi_hifiberry_dacplus_select_clk(codec, ctype); + } +} + +static int snd_rpi_hifiberry_dacplus_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_codec *codec = rtd->codec; + struct pcm512x_priv *priv; + + if (slave) + snd_rpi_hifiberry_is_dacpro = false; + else + snd_rpi_hifiberry_is_dacpro = + snd_rpi_hifiberry_dacplus_is_pro_card(codec); + + if (snd_rpi_hifiberry_is_dacpro) { + struct snd_soc_dai_link *dai = rtd->dai_link; + + dai->name = "HiFiBerry DAC+ Pro"; + dai->stream_name = "HiFiBerry DAC+ Pro HiFi"; + dai->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF + | SND_SOC_DAIFMT_CBM_CFM; + + snd_soc_update_bits(codec, PCM512x_BCLK_LRCLK_CFG, 0x31, 0x11); + snd_soc_update_bits(codec, PCM512x_MASTER_MODE, 0x03, 0x03); + snd_soc_update_bits(codec, PCM512x_MASTER_CLKDIV_2, 0x7f, 63); + } else { + priv = snd_soc_codec_get_drvdata(codec); + priv->sclk = ERR_PTR(-ENOENT); + } + + snd_soc_update_bits(codec, PCM512x_GPIO_EN, 0x08, 0x08); + snd_soc_update_bits(codec, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02); + snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x08, 0x08); + + if (digital_gain_0db_limit) + { + int ret; + struct snd_soc_card *card = rtd->card; + + ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207); + if (ret < 0) + dev_warn(card->dev, "Failed to set volume limit: %d\n", ret); + } + + return 0; +} + +static int snd_rpi_hifiberry_dacplus_update_rate_den( + struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + struct pcm512x_priv *pcm512x = snd_soc_codec_get_drvdata(codec); + struct snd_ratnum *rats_no_pll; + unsigned int num = 0, den = 0; + int err; + + rats_no_pll = devm_kzalloc(rtd->dev, sizeof(*rats_no_pll), GFP_KERNEL); + if (!rats_no_pll) + return -ENOMEM; + + rats_no_pll->num = clk_get_rate(pcm512x->sclk) / 64; + rats_no_pll->den_min = 1; + rats_no_pll->den_max = 128; + rats_no_pll->den_step = 1; + + err = snd_interval_ratnum(hw_param_interval(params, + SNDRV_PCM_HW_PARAM_RATE), 1, rats_no_pll, &num, &den); + if (err >= 0 && den) { + params->rate_num = num; + params->rate_den = den; + } + + devm_kfree(rtd->dev, rats_no_pll); + return 0; +} + +static int snd_rpi_hifiberry_dacplus_set_bclk_ratio_pro( + struct snd_soc_dai *cpu_dai, struct snd_pcm_hw_params *params) +{ + int bratio = snd_pcm_format_physical_width(params_format(params)) + * params_channels(params); + return snd_soc_dai_set_bclk_ratio(cpu_dai, bratio); +} + +static int snd_rpi_hifiberry_dacplus_hw_params( + struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) +{ + int ret; + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + + if (snd_rpi_hifiberry_is_dacpro) { + struct snd_soc_codec *codec = rtd->codec; + + snd_rpi_hifiberry_dacplus_set_sclk(codec, + params_rate(params)); + + ret = snd_rpi_hifiberry_dacplus_set_bclk_ratio_pro(cpu_dai, + params); + if (!ret) + ret = snd_rpi_hifiberry_dacplus_update_rate_den( + substream, params); + } else { + ret = snd_soc_dai_set_bclk_ratio(cpu_dai, 64); + } + return ret; +} + +static int snd_rpi_hifiberry_dacplus_startup( + struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + + snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x08, 0x08); + return 0; +} + +static void snd_rpi_hifiberry_dacplus_shutdown( + struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + + snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x08, 0x00); +} + +/* machine stream operations */ +static struct snd_soc_ops snd_rpi_hifiberry_dacplus_ops = { + .hw_params = snd_rpi_hifiberry_dacplus_hw_params, + .startup = snd_rpi_hifiberry_dacplus_startup, + .shutdown = snd_rpi_hifiberry_dacplus_shutdown, +}; + +static struct snd_soc_dai_link snd_rpi_hifiberry_dacplus_dai[] = { +{ + .name = "HiFiBerry DAC+", + .stream_name = "HiFiBerry DAC+ HiFi", + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "pcm512x-hifi", + .platform_name = "bcm2708-i2s.0", + .codec_name = "pcm512x.1-004d", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + .ops = &snd_rpi_hifiberry_dacplus_ops, + .init = snd_rpi_hifiberry_dacplus_init, +}, +}; + +/* audio machine driver */ +static struct snd_soc_card snd_rpi_hifiberry_dacplus = { + .name = "snd_rpi_hifiberry_dacplus", + .driver_name = "HifiberryDacp", + .owner = THIS_MODULE, + .dai_link = snd_rpi_hifiberry_dacplus_dai, + .num_links = ARRAY_SIZE(snd_rpi_hifiberry_dacplus_dai), +}; + +static int snd_rpi_hifiberry_dacplus_probe(struct platform_device *pdev) +{ + int ret = 0; + + snd_rpi_hifiberry_dacplus.dev = &pdev->dev; + if (pdev->dev.of_node) { + struct device_node *i2s_node; + struct snd_soc_dai_link *dai; + + dai = &snd_rpi_hifiberry_dacplus_dai[0]; + i2s_node = of_parse_phandle(pdev->dev.of_node, + "i2s-controller", 0); + + if (i2s_node) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + } + + digital_gain_0db_limit = !of_property_read_bool( + pdev->dev.of_node, "hifiberry,24db_digital_gain"); + slave = of_property_read_bool(pdev->dev.of_node, + "hifiberry-dacplus,slave"); + } + + ret = snd_soc_register_card(&snd_rpi_hifiberry_dacplus); + if (ret && ret != -EPROBE_DEFER) + dev_err(&pdev->dev, + "snd_soc_register_card() failed: %d\n", ret); + + return ret; +} + +static int snd_rpi_hifiberry_dacplus_remove(struct platform_device *pdev) +{ + return snd_soc_unregister_card(&snd_rpi_hifiberry_dacplus); +} + +static const struct of_device_id snd_rpi_hifiberry_dacplus_of_match[] = { + { .compatible = "hifiberry,hifiberry-dacplus", }, + {}, +}; +MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_dacplus_of_match); + +static struct platform_driver snd_rpi_hifiberry_dacplus_driver = { + .driver = { + .name = "snd-rpi-hifiberry-dacplus", + .owner = THIS_MODULE, + .of_match_table = snd_rpi_hifiberry_dacplus_of_match, + }, + .probe = snd_rpi_hifiberry_dacplus_probe, + .remove = snd_rpi_hifiberry_dacplus_remove, +}; + +module_platform_driver(snd_rpi_hifiberry_dacplus_driver); + +MODULE_AUTHOR("Daniel Matuschek "); +MODULE_DESCRIPTION("ASoC Driver for HiFiBerry DAC+"); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/codecs/pcm512x.c b/sound/soc/codecs/pcm512x.c index 72b19e62f6267698aea45d2410d616d91c1825cb..c6839ef6e16754ed9de2698507b8986addd822fe 100644 --- a/sound/soc/codecs/pcm512x.c +++ b/sound/soc/codecs/pcm512x.c @@ -854,7 +854,8 @@ static int pcm512x_set_dividers(struct snd_soc_dai *dai, int fssp; int gpio; - lrclk_div = snd_soc_params_to_frame_size(params); + lrclk_div = snd_pcm_format_physical_width(params_format(params)) + * params_channels(params); if (lrclk_div == 0) { dev_err(dev, "No LRCLK?\n"); return -EINVAL; From 7bb18adf89ee8b0c875e00b2656258e81e8cfb46 Mon Sep 17 00:00:00 2001 From: Daniel Matuschek Date: Mon, 4 Aug 2014 11:09:58 +0200 Subject: [PATCH 072/165] Added driver for HiFiBerry Amp amplifier add-on board The driver contains a low-level hardware driver for the TAS5713 and the drivers for the Raspberry Pi I2S subsystem. TAS5713: return error if initialisation fails Existing TAS5713 driver logs errors during initialisation, but does not return an error code. Therefore even if initialisation fails, the driver will still be loaded, but won't work. This patch fixes this. I2C communication error will now reported correctly by a non-zero return code. HiFiBerry Amp: fix device-tree problems Some code to load the driver based on device-tree-overlays was missing. This is added by this patch. --- sound/soc/bcm/Kconfig | 7 + sound/soc/bcm/Makefile | 2 + sound/soc/bcm/hifiberry_amp.c | 128 +++++++++++++++ sound/soc/codecs/Kconfig | 4 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/tas5713.c | 371 ++++++++++++++++++++++++++++++++++++++++++ sound/soc/codecs/tas5713.h | 210 ++++++++++++++++++++++++ 7 files changed, 724 insertions(+) create mode 100644 sound/soc/bcm/hifiberry_amp.c create mode 100644 sound/soc/codecs/tas5713.c create mode 100644 sound/soc/codecs/tas5713.h diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index 3580a12f865975e920ff86697849b137b41bae62..f650f1522d6ef1e02d87345fea01bb1458693423 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -39,6 +39,13 @@ config SND_BCM2708_SOC_HIFIBERRY_DIGI help Say Y or M if you want to add support for HifiBerry Digi S/PDIF output board. +config SND_BCM2708_SOC_HIFIBERRY_AMP + tristate "Support for the HifiBerry Amp" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_TAS5713 + help + Say Y or M if you want to add support for the HifiBerry Amp amplifier board. + config SND_BCM2708_SOC_RPI_DAC tristate "Support for RPi-DAC" depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index 203afc03167acbcad15e836209956bc5ab151157..8ffe0725ba10307b5636a252b6bb8d61ecfe2591 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -9,12 +9,14 @@ snd-soc-cygnus-objs := cygnus-pcm.o cygnus-ssp.o obj-$(CONFIG_SND_SOC_CYGNUS) += snd-soc-cygnus.o # BCM2708 Machine Support +snd-soc-hifiberry-amp-objs := hifiberry_amp.o snd-soc-hifiberry-dac-objs := hifiberry_dac.o snd-soc-hifiberry-dacplus-objs := hifiberry_dacplus.o snd-soc-hifiberry-digi-objs := hifiberry_digi.o snd-soc-rpi-dac-objs := rpi-dac.o snd-soc-iqaudio-dac-objs := iqaudio-dac.o +obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) += snd-soc-hifiberry-amp.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI) += snd-soc-hifiberry-digi.o diff --git a/sound/soc/bcm/hifiberry_amp.c b/sound/soc/bcm/hifiberry_amp.c new file mode 100644 index 0000000000000000000000000000000000000000..221c6c38e6465ffe5d5ad77fa80a0b146d0b6841 --- /dev/null +++ b/sound/soc/bcm/hifiberry_amp.c @@ -0,0 +1,128 @@ +/* + * ASoC Driver for HifiBerry AMP + * + * Author: Sebastian Eickhoff + * Copyright 2014 + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include + +#include +#include +#include +#include +#include + +static int snd_rpi_hifiberry_amp_init(struct snd_soc_pcm_runtime *rtd) +{ + // ToDo: init of the dsp-registers. + return 0; +} + +static int snd_rpi_hifiberry_amp_hw_params( struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params ) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + + return snd_soc_dai_set_bclk_ratio(cpu_dai, 64); +} + +static struct snd_soc_ops snd_rpi_hifiberry_amp_ops = { + .hw_params = snd_rpi_hifiberry_amp_hw_params, +}; + +static struct snd_soc_dai_link snd_rpi_hifiberry_amp_dai[] = { + { + .name = "HifiBerry AMP", + .stream_name = "HifiBerry AMP HiFi", + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "tas5713-hifi", + .platform_name = "bcm2708-i2s.0", + .codec_name = "tas5713.1-001b", + .dai_fmt = SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + .ops = &snd_rpi_hifiberry_amp_ops, + .init = snd_rpi_hifiberry_amp_init, + }, +}; + + +static struct snd_soc_card snd_rpi_hifiberry_amp = { + .name = "snd_rpi_hifiberry_amp", + .driver_name = "HifiberryAmp", + .owner = THIS_MODULE, + .dai_link = snd_rpi_hifiberry_amp_dai, + .num_links = ARRAY_SIZE(snd_rpi_hifiberry_amp_dai), +}; + +static const struct of_device_id snd_rpi_hifiberry_amp_of_match[] = { + { .compatible = "hifiberry,hifiberry-amp", }, + {}, +}; +MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_amp_of_match); + + +static int snd_rpi_hifiberry_amp_probe(struct platform_device *pdev) +{ + int ret = 0; + + snd_rpi_hifiberry_amp.dev = &pdev->dev; + + if (pdev->dev.of_node) { + struct device_node *i2s_node; + struct snd_soc_dai_link *dai = &snd_rpi_hifiberry_amp_dai[0]; + i2s_node = of_parse_phandle(pdev->dev.of_node, + "i2s-controller", 0); + + if (i2s_node) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + } + } + + ret = snd_soc_register_card(&snd_rpi_hifiberry_amp); + + if (ret && ret != -EPROBE_DEFER) + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret); + + return ret; +} + + +static int snd_rpi_hifiberry_amp_remove(struct platform_device *pdev) +{ + return snd_soc_unregister_card(&snd_rpi_hifiberry_amp); +} + + +static struct platform_driver snd_rpi_hifiberry_amp_driver = { + .driver = { + .name = "snd-hifiberry-amp", + .owner = THIS_MODULE, + .of_match_table = snd_rpi_hifiberry_amp_of_match, + }, + .probe = snd_rpi_hifiberry_amp_probe, + .remove = snd_rpi_hifiberry_amp_remove, +}; + + +module_platform_driver(snd_rpi_hifiberry_amp_driver); + + +MODULE_AUTHOR("Sebastian Eickhoff "); +MODULE_DESCRIPTION("ASoC driver for HiFiBerry-AMP"); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 17b431dc7ea27b1938a1cfe8949e450933ba83e7..55812b0b884cf4fc4e86680b11fedd11c863db7a 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -144,6 +144,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_TFA9879 if I2C select SND_SOC_TLV320AIC23_I2C if I2C select SND_SOC_TLV320AIC23_SPI if SPI_MASTER + select SND_SOC_TAS5713 if I2C select SND_SOC_TLV320AIC26 if SPI_MASTER select SND_SOC_TLV320AIC31XX if I2C select SND_SOC_TLV320AIC32X4_I2C if I2C @@ -847,6 +848,9 @@ config SND_SOC_TFA9879 tristate "NXP Semiconductors TFA9879 amplifier" depends on I2C +config SND_SOC_TAS5713 + tristate + config SND_SOC_TLV320AIC23 tristate diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index 4dd919b509d11511807a3c3307ca9b472309c810..c675785b3e8d5987f3f7d7aef0bb4b31fbee81e4 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -150,6 +150,7 @@ snd-soc-tas5086-objs := tas5086.o snd-soc-tas571x-objs := tas571x.o snd-soc-tas5720-objs := tas5720.o snd-soc-tfa9879-objs := tfa9879.o +snd-soc-tas5713-objs := tas5713.o snd-soc-tlv320aic23-objs := tlv320aic23.o snd-soc-tlv320aic23-i2c-objs := tlv320aic23-i2c.o snd-soc-tlv320aic23-spi-objs := tlv320aic23-spi.o @@ -377,6 +378,7 @@ obj-$(CONFIG_SND_SOC_TAS5086) += snd-soc-tas5086.o obj-$(CONFIG_SND_SOC_TAS571X) += snd-soc-tas571x.o obj-$(CONFIG_SND_SOC_TAS5720) += snd-soc-tas5720.o obj-$(CONFIG_SND_SOC_TFA9879) += snd-soc-tfa9879.o +obj-$(CONFIG_SND_SOC_TAS5713) += snd-soc-tas5713.o obj-$(CONFIG_SND_SOC_TLV320AIC23) += snd-soc-tlv320aic23.o obj-$(CONFIG_SND_SOC_TLV320AIC23_I2C) += snd-soc-tlv320aic23-i2c.o obj-$(CONFIG_SND_SOC_TLV320AIC23_SPI) += snd-soc-tlv320aic23-spi.o diff --git a/sound/soc/codecs/tas5713.c b/sound/soc/codecs/tas5713.c new file mode 100644 index 0000000000000000000000000000000000000000..560234d58a6b0a6e7fd3a63e8de73339ee002b1c --- /dev/null +++ b/sound/soc/codecs/tas5713.c @@ -0,0 +1,371 @@ +/* + * ASoC Driver for TAS5713 + * + * Author: Sebastian Eickhoff + * Copyright 2014 + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include "tas5713.h" + + +static struct i2c_client *i2c; + +struct tas5713_priv { + struct regmap *regmap; + int mclk_div; + struct snd_soc_codec *codec; +}; + +static struct tas5713_priv *priv_data; + + + + +/* + * _ _ ___ _ ___ _ _ + * /_\ | | / __| /_\ / __|___ _ _| |_ _ _ ___| |___ + * / _ \| |__\__ \/ _ \ | (__/ _ \ ' \ _| '_/ _ \ (_-< + * /_/ \_\____|___/_/ \_\ \___\___/_||_\__|_| \___/_/__/ + * + */ + +static const DECLARE_TLV_DB_SCALE(tas5713_vol_tlv, -10000, 50, 1); + + +static const struct snd_kcontrol_new tas5713_snd_controls[] = { + SOC_SINGLE_TLV ("Master" , TAS5713_VOL_MASTER, 0, 248, 1, tas5713_vol_tlv), + SOC_DOUBLE_R_TLV("Channels" , TAS5713_VOL_CH1, TAS5713_VOL_CH2, 0, 248, 1, tas5713_vol_tlv) +}; + + + + +/* + * __ __ _ _ ___ _ + * | \/ |__ _ __| |_ (_)_ _ ___ | \ _ _(_)_ _____ _ _ + * | |\/| / _` / _| ' \| | ' \/ -_) | |) | '_| \ V / -_) '_| + * |_| |_\__,_\__|_||_|_|_||_\___| |___/|_| |_|\_/\___|_| + * + */ + +static int tas5713_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + u16 blen = 0x00; + + struct snd_soc_codec *codec; + codec = dai->codec; + priv_data->codec = dai->codec; + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + blen = 0x03; + break; + case SNDRV_PCM_FORMAT_S20_3LE: + blen = 0x1; + break; + case SNDRV_PCM_FORMAT_S24_LE: + blen = 0x04; + break; + case SNDRV_PCM_FORMAT_S32_LE: + blen = 0x05; + break; + default: + dev_err(dai->dev, "Unsupported word length: %u\n", + params_format(params)); + return -EINVAL; + } + + // set word length + snd_soc_update_bits(codec, TAS5713_SERIAL_DATA_INTERFACE, 0x7, blen); + + return 0; +} + + +static int tas5713_mute_stream(struct snd_soc_dai *dai, int mute, int stream) +{ + unsigned int val = 0; + + struct tas5713_priv *tas5713; + struct snd_soc_codec *codec = dai->codec; + tas5713 = snd_soc_codec_get_drvdata(codec); + + if (mute) { + val = TAS5713_SOFT_MUTE_ALL; + } + + return regmap_write(tas5713->regmap, TAS5713_SOFT_MUTE, val); +} + + +static const struct snd_soc_dai_ops tas5713_dai_ops = { + .hw_params = tas5713_hw_params, + .mute_stream = tas5713_mute_stream, +}; + + +static struct snd_soc_dai_driver tas5713_dai = { + .name = "tas5713-hifi", + .playback = { + .stream_name = "Playback", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_48000, + .formats = (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE ), + }, + .ops = &tas5713_dai_ops, +}; + + + + +/* + * ___ _ ___ _ + * / __|___ __| |___ __ | \ _ _(_)_ _____ _ _ + * | (__/ _ \/ _` / -_) _| | |) | '_| \ V / -_) '_| + * \___\___/\__,_\___\__| |___/|_| |_|\_/\___|_| + * + */ + +static int tas5713_remove(struct snd_soc_codec *codec) +{ + struct tas5713_priv *tas5713; + + tas5713 = snd_soc_codec_get_drvdata(codec); + + return 0; +} + + +static int tas5713_probe(struct snd_soc_codec *codec) +{ + struct tas5713_priv *tas5713; + int i, ret; + + i2c = container_of(codec->dev, struct i2c_client, dev); + + tas5713 = snd_soc_codec_get_drvdata(codec); + + // Reset error + ret = snd_soc_write(codec, TAS5713_ERROR_STATUS, 0x00); + if (ret < 0) return ret; + + // Trim oscillator + ret = snd_soc_write(codec, TAS5713_OSC_TRIM, 0x00); + if (ret < 0) return ret; + msleep(1000); + + // Reset error + ret = snd_soc_write(codec, TAS5713_ERROR_STATUS, 0x00); + if (ret < 0) return ret; + + // Clock mode: 44/48kHz, MCLK=64xfs + ret = snd_soc_write(codec, TAS5713_CLOCK_CTRL, 0x60); + if (ret < 0) return ret; + + // I2S 24bit + ret = snd_soc_write(codec, TAS5713_SERIAL_DATA_INTERFACE, 0x05); + if (ret < 0) return ret; + + // Unmute + ret = snd_soc_write(codec, TAS5713_SYSTEM_CTRL2, 0x00); + if (ret < 0) return ret; + ret = snd_soc_write(codec, TAS5713_SOFT_MUTE, 0x00); + if (ret < 0) return ret; + + // Set volume to 0db + ret = snd_soc_write(codec, TAS5713_VOL_MASTER, 0x00); + if (ret < 0) return ret; + + // Now start programming the default initialization sequence + for (i = 0; i < ARRAY_SIZE(tas5713_init_sequence); ++i) { + ret = i2c_master_send(i2c, + tas5713_init_sequence[i].data, + tas5713_init_sequence[i].size); + if (ret < 0) { + printk(KERN_INFO "TAS5713 CODEC PROBE: InitSeq returns: %d\n", ret); + } + } + + // Unmute + ret = snd_soc_write(codec, TAS5713_SYSTEM_CTRL2, 0x00); + if (ret < 0) return ret; + + return 0; +} + + +static struct snd_soc_codec_driver soc_codec_dev_tas5713 = { + .probe = tas5713_probe, + .remove = tas5713_remove, + .component_driver = { + .controls = tas5713_snd_controls, + .num_controls = ARRAY_SIZE(tas5713_snd_controls), + }, +}; + + + + +/* + * ___ ___ ___ ___ _ + * |_ _|_ ) __| | \ _ _(_)_ _____ _ _ + * | | / / (__ | |) | '_| \ V / -_) '_| + * |___/___\___| |___/|_| |_|\_/\___|_| + * + */ + +static const struct reg_default tas5713_reg_defaults[] = { + { 0x07 ,0x80 }, // R7 - VOL_MASTER - -40dB + { 0x08 , 30 }, // R8 - VOL_CH1 - 0dB + { 0x09 , 30 }, // R9 - VOL_CH2 - 0dB + { 0x0A ,0x80 }, // R10 - VOL_HEADPHONE - -40dB +}; + + +static bool tas5713_reg_volatile(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TAS5713_DEVICE_ID: + case TAS5713_ERROR_STATUS: + return true; + default: + return false; + } +} + + +static const struct of_device_id tas5713_of_match[] = { + { .compatible = "ti,tas5713", }, + { } +}; +MODULE_DEVICE_TABLE(of, tas5713_of_match); + + +static struct regmap_config tas5713_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = TAS5713_MAX_REGISTER, + .volatile_reg = tas5713_reg_volatile, + + .cache_type = REGCACHE_RBTREE, + .reg_defaults = tas5713_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(tas5713_reg_defaults), +}; + + +static int tas5713_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + int ret; + + priv_data = devm_kzalloc(&i2c->dev, sizeof *priv_data, GFP_KERNEL); + if (!priv_data) + return -ENOMEM; + + priv_data->regmap = devm_regmap_init_i2c(i2c, &tas5713_regmap_config); + if (IS_ERR(priv_data->regmap)) { + ret = PTR_ERR(priv_data->regmap); + return ret; + } + + i2c_set_clientdata(i2c, priv_data); + + ret = snd_soc_register_codec(&i2c->dev, + &soc_codec_dev_tas5713, &tas5713_dai, 1); + + return ret; +} + + +static int tas5713_i2c_remove(struct i2c_client *i2c) +{ + snd_soc_unregister_codec(&i2c->dev); + i2c_set_clientdata(i2c, NULL); + + kfree(priv_data); + + return 0; +} + + +static const struct i2c_device_id tas5713_i2c_id[] = { + { "tas5713", 0 }, + { } +}; + +MODULE_DEVICE_TABLE(i2c, tas5713_i2c_id); + + +static struct i2c_driver tas5713_i2c_driver = { + .driver = { + .name = "tas5713", + .owner = THIS_MODULE, + .of_match_table = tas5713_of_match, + }, + .probe = tas5713_i2c_probe, + .remove = tas5713_i2c_remove, + .id_table = tas5713_i2c_id +}; + + +static int __init tas5713_modinit(void) +{ + int ret = 0; + + ret = i2c_add_driver(&tas5713_i2c_driver); + if (ret) { + printk(KERN_ERR "Failed to register tas5713 I2C driver: %d\n", + ret); + } + + return ret; +} +module_init(tas5713_modinit); + + +static void __exit tas5713_exit(void) +{ + i2c_del_driver(&tas5713_i2c_driver); +} +module_exit(tas5713_exit); + + +MODULE_AUTHOR("Sebastian Eickhoff "); +MODULE_DESCRIPTION("ASoC driver for TAS5713"); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/codecs/tas5713.h b/sound/soc/codecs/tas5713.h new file mode 100644 index 0000000000000000000000000000000000000000..8f019e04898754d2f87e9630137be9e8f612a342 --- /dev/null +++ b/sound/soc/codecs/tas5713.h @@ -0,0 +1,210 @@ +/* + * ASoC Driver for TAS5713 + * + * Author: Sebastian Eickhoff + * Copyright 2014 + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#ifndef _TAS5713_H +#define _TAS5713_H + + +// TAS5713 I2C-bus register addresses + +#define TAS5713_CLOCK_CTRL 0x00 +#define TAS5713_DEVICE_ID 0x01 +#define TAS5713_ERROR_STATUS 0x02 +#define TAS5713_SYSTEM_CTRL1 0x03 +#define TAS5713_SERIAL_DATA_INTERFACE 0x04 +#define TAS5713_SYSTEM_CTRL2 0x05 +#define TAS5713_SOFT_MUTE 0x06 +#define TAS5713_VOL_MASTER 0x07 +#define TAS5713_VOL_CH1 0x08 +#define TAS5713_VOL_CH2 0x09 +#define TAS5713_VOL_HEADPHONE 0x0A +#define TAS5713_VOL_CONFIG 0x0E +#define TAS5713_MODULATION_LIMIT 0x10 +#define TAS5713_IC_DLY_CH1 0x11 +#define TAS5713_IC_DLY_CH2 0x12 +#define TAS5713_IC_DLY_CH3 0x13 +#define TAS5713_IC_DLY_CH4 0x14 + +#define TAS5713_START_STOP_PERIOD 0x1A +#define TAS5713_OSC_TRIM 0x1B +#define TAS5713_BKND_ERR 0x1C + +#define TAS5713_INPUT_MUX 0x20 +#define TAS5713_SRC_SELECT_CH4 0x21 +#define TAS5713_PWM_MUX 0x25 + +#define TAS5713_CH1_BQ0 0x29 +#define TAS5713_CH1_BQ1 0x2A +#define TAS5713_CH1_BQ2 0x2B +#define TAS5713_CH1_BQ3 0x2C +#define TAS5713_CH1_BQ4 0x2D +#define TAS5713_CH1_BQ5 0x2E +#define TAS5713_CH1_BQ6 0x2F +#define TAS5713_CH1_BQ7 0x58 +#define TAS5713_CH1_BQ8 0x59 + +#define TAS5713_CH2_BQ0 0x30 +#define TAS5713_CH2_BQ1 0x31 +#define TAS5713_CH2_BQ2 0x32 +#define TAS5713_CH2_BQ3 0x33 +#define TAS5713_CH2_BQ4 0x34 +#define TAS5713_CH2_BQ5 0x35 +#define TAS5713_CH2_BQ6 0x36 +#define TAS5713_CH2_BQ7 0x5C +#define TAS5713_CH2_BQ8 0x5D + +#define TAS5713_CH4_BQ0 0x5A +#define TAS5713_CH4_BQ1 0x5B +#define TAS5713_CH3_BQ0 0x5E +#define TAS5713_CH3_BQ1 0x5F + +#define TAS5713_DRC1_SOFTENING_FILTER_ALPHA_OMEGA 0x3B +#define TAS5713_DRC1_ATTACK_RELEASE_RATE 0x3C +#define TAS5713_DRC2_SOFTENING_FILTER_ALPHA_OMEGA 0x3E +#define TAS5713_DRC2_ATTACK_RELEASE_RATE 0x3F +#define TAS5713_DRC1_ATTACK_RELEASE_THRES 0x40 +#define TAS5713_DRC2_ATTACK_RELEASE_THRES 0x43 +#define TAS5713_DRC_CTRL 0x46 + +#define TAS5713_BANK_SW_CTRL 0x50 +#define TAS5713_CH1_OUTPUT_MIXER 0x51 +#define TAS5713_CH2_OUTPUT_MIXER 0x52 +#define TAS5713_CH1_INPUT_MIXER 0x53 +#define TAS5713_CH2_INPUT_MIXER 0x54 +#define TAS5713_OUTPUT_POST_SCALE 0x56 +#define TAS5713_OUTPUT_PRESCALE 0x57 + +#define TAS5713_IDF_POST_SCALE 0x62 + +#define TAS5713_CH1_INLINE_MIXER 0x70 +#define TAS5713_CH1_INLINE_DRC_EN_MIXER 0x71 +#define TAS5713_CH1_R_CHANNEL_MIXER 0x72 +#define TAS5713_CH1_L_CHANNEL_MIXER 0x73 +#define TAS5713_CH2_INLINE_MIXER 0x74 +#define TAS5713_CH2_INLINE_DRC_EN_MIXER 0x75 +#define TAS5713_CH2_L_CHANNEL_MIXER 0x76 +#define TAS5713_CH2_R_CHANNEL_MIXER 0x77 + +#define TAS5713_UPDATE_DEV_ADDR_KEY 0xF8 +#define TAS5713_UPDATE_DEV_ADDR_REG 0xF9 + +#define TAS5713_REGISTER_COUNT 0x46 +#define TAS5713_MAX_REGISTER 0xF9 + + +// Bitmasks for registers +#define TAS5713_SOFT_MUTE_ALL 0x07 + + + +struct tas5713_init_command { + const int size; + const char *const data; +}; + +static const struct tas5713_init_command tas5713_init_sequence[] = { + + // Trim oscillator + { .size = 2, .data = "\x1B\x00" }, + // System control register 1 (0x03): block DC + { .size = 2, .data = "\x03\x80" }, + // Mute everything + { .size = 2, .data = "\x05\x40" }, + // Modulation limit register (0x10): 97.7% + { .size = 2, .data = "\x10\x02" }, + // Interchannel delay registers + // (0x11, 0x12, 0x13, and 0x14): BD mode + { .size = 2, .data = "\x11\xB8" }, + { .size = 2, .data = "\x12\x60" }, + { .size = 2, .data = "\x13\xA0" }, + { .size = 2, .data = "\x14\x48" }, + // PWM shutdown group register (0x19): no shutdown + { .size = 2, .data = "\x19\x00" }, + // Input multiplexer register (0x20): BD mode + { .size = 2, .data = "\x20\x00\x89\x77\x72" }, + // PWM output mux register (0x25) + // Channel 1 --> OUTA, channel 1 neg --> OUTB + // Channel 2 --> OUTC, channel 2 neg --> OUTD + { .size = 5, .data = "\x25\x01\x02\x13\x45" }, + // DRC control (0x46): DRC off + { .size = 5, .data = "\x46\x00\x00\x00\x00" }, + // BKND_ERR register (0x1C): 299ms reset period + { .size = 2, .data = "\x1C\x07" }, + // Mute channel 3 + { .size = 2, .data = "\x0A\xFF" }, + // Volume configuration register (0x0E): volume slew 512 steps + { .size = 2, .data = "\x0E\x90" }, + // Clock control register (0x00): 44/48kHz, MCLK=64xfs + { .size = 2, .data = "\x00\x60" }, + // Bank switch and eq control (0x50): no bank switching + { .size = 5, .data = "\x50\x00\x00\x00\x00" }, + // Volume registers (0x07, 0x08, 0x09, 0x0A) + { .size = 2, .data = "\x07\x20" }, + { .size = 2, .data = "\x08\x30" }, + { .size = 2, .data = "\x09\x30" }, + { .size = 2, .data = "\x0A\xFF" }, + // 0x72, 0x73, 0x76, 0x77 input mixer: + // no intermix between channels + { .size = 5, .data = "\x72\x00\x00\x00\x00" }, + { .size = 5, .data = "\x73\x00\x80\x00\x00" }, + { .size = 5, .data = "\x76\x00\x00\x00\x00" }, + { .size = 5, .data = "\x77\x00\x80\x00\x00" }, + // 0x70, 0x71, 0x74, 0x75 inline DRC mixer: + // no inline DRC inmix + { .size = 5, .data = "\x70\x00\x80\x00\x00" }, + { .size = 5, .data = "\x71\x00\x00\x00\x00" }, + { .size = 5, .data = "\x74\x00\x80\x00\x00" }, + { .size = 5, .data = "\x75\x00\x00\x00\x00" }, + // 0x56, 0x57 Output scale + { .size = 5, .data = "\x56\x00\x80\x00\x00" }, + { .size = 5, .data = "\x57\x00\x02\x00\x00" }, + // 0x3B, 0x3c + { .size = 9, .data = "\x3B\x00\x08\x00\x00\x00\x78\x00\x00" }, + { .size = 9, .data = "\x3C\x00\x00\x01\x00\xFF\xFF\xFF\x00" }, + { .size = 9, .data = "\x3E\x00\x08\x00\x00\x00\x78\x00\x00" }, + { .size = 9, .data = "\x3F\x00\x00\x01\x00\xFF\xFF\xFF\x00" }, + { .size = 9, .data = "\x40\x00\x00\x01\x00\xFF\xFF\xFF\x00" }, + { .size = 9, .data = "\x43\x00\x00\x01\x00\xFF\xFF\xFF\x00" }, + // 0x51, 0x52: output mixer + { .size = 9, .data = "\x51\x00\x80\x00\x00\x00\x00\x00\x00" }, + { .size = 9, .data = "\x52\x00\x80\x00\x00\x00\x00\x00\x00" }, + // PEQ defaults + { .size = 21, .data = "\x29\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x2A\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x2B\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x2C\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x2D\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x2E\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x2F\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x30\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x31\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x32\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x33\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x34\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x35\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x36\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x58\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x59\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x5C\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x5D\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x5E\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x5F\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x5A\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, + { .size = 21, .data = "\x5B\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" }, +}; + + +#endif /* _TAS5713_H */ From 4a149107af657bdcc1af318bf22aa07d81575bd2 Mon Sep 17 00:00:00 2001 From: Ryan Coe Date: Sat, 31 Jan 2015 18:25:49 -0700 Subject: [PATCH 073/165] Update ds1307 driver for device-tree support Signed-off-by: Ryan Coe --- drivers/rtc/rtc-ds1307.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index 4ad97be480430babc3321075f2739114eaad8f04..2ac1c265dc9cea56a5949eb537949a1f8853edc5 100644 --- a/drivers/rtc/rtc-ds1307.c +++ b/drivers/rtc/rtc-ds1307.c @@ -1708,6 +1708,14 @@ static int ds1307_remove(struct i2c_client *client) return 0; } +#ifdef CONFIG_OF +static const struct of_device_id ds1307_of_match[] = { + { .compatible = "maxim,ds1307" }, + { } +}; +MODULE_DEVICE_TABLE(of, ds1307_of_match); +#endif + static struct i2c_driver ds1307_driver = { .driver = { .name = "rtc-ds1307", From d386b7729bf018e7af5d2c9d97d9cae64b7ca7ed Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Wed, 25 Mar 2015 09:26:17 +0100 Subject: [PATCH 074/165] Add driver for rpi-proto Forward port of 3.10.x driver from https://github.com/koalo We are using a custom board and would like to use rpi 3.18.x kernel. Patch works fine for our embedded system. URL to the audio chip: http://www.mikroe.com/add-on-boards/audio-voice/audio-codec-proto/ Playback tested with devicetree enabled. Signed-off-by: Waldemar Brodkorb --- sound/soc/bcm/Kconfig | 7 +++ sound/soc/bcm/Makefile | 2 + sound/soc/bcm/rpi-proto.c | 153 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 162 insertions(+) create mode 100644 sound/soc/bcm/rpi-proto.c diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index f650f1522d6ef1e02d87345fea01bb1458693423..3cb799da4687e10cd1cfe9258e109b9fcf701c4c 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -53,6 +53,13 @@ config SND_BCM2708_SOC_RPI_DAC help Say Y or M if you want to add support for RPi-DAC. +config SND_BCM2708_SOC_RPI_PROTO + tristate "Support for Rpi-PROTO" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_WM8731 + help + Say Y or M if you want to add support for Audio Codec Board PROTO (WM8731). + config SND_BCM2708_SOC_IQAUDIO_DAC tristate "Support for IQaudIO-DAC" depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index 8ffe0725ba10307b5636a252b6bb8d61ecfe2591..5793c83cf2f53a831f5f49bb46b5bd4515d711a7 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -14,6 +14,7 @@ snd-soc-hifiberry-dac-objs := hifiberry_dac.o snd-soc-hifiberry-dacplus-objs := hifiberry_dacplus.o snd-soc-hifiberry-digi-objs := hifiberry_digi.o snd-soc-rpi-dac-objs := rpi-dac.o +snd-soc-rpi-proto-objs := rpi-proto.o snd-soc-iqaudio-dac-objs := iqaudio-dac.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) += snd-soc-hifiberry-amp.o @@ -21,4 +22,5 @@ obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI) += snd-soc-hifiberry-digi.o obj-$(CONFIG_SND_BCM2708_SOC_RPI_DAC) += snd-soc-rpi-dac.o +obj-$(CONFIG_SND_BCM2708_SOC_RPI_PROTO) += snd-soc-rpi-proto.o obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o diff --git a/sound/soc/bcm/rpi-proto.c b/sound/soc/bcm/rpi-proto.c new file mode 100644 index 0000000000000000000000000000000000000000..fadbfade100228aaafabb0d3bdf35c01f8d10485 --- /dev/null +++ b/sound/soc/bcm/rpi-proto.c @@ -0,0 +1,153 @@ +/* + * ASoC driver for PROTO AudioCODEC (with a WM8731) + * connected to a Raspberry Pi + * + * Author: Florian Meier, + * Copyright 2013 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include + +#include +#include +#include +#include + +#include "../codecs/wm8731.h" + +static const unsigned int wm8731_rates_12288000[] = { + 8000, 32000, 48000, 96000, +}; + +static struct snd_pcm_hw_constraint_list wm8731_constraints_12288000 = { + .list = wm8731_rates_12288000, + .count = ARRAY_SIZE(wm8731_rates_12288000), +}; + +static int snd_rpi_proto_startup(struct snd_pcm_substream *substream) +{ + /* Setup constraints, because there is a 12.288 MHz XTAL on the board */ + snd_pcm_hw_constraint_list(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + &wm8731_constraints_12288000); + return 0; +} + +static int snd_rpi_proto_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + int sysclk = 12288000; /* This is fixed on this board */ + + /* Set proto bclk */ + int ret = snd_soc_dai_set_bclk_ratio(cpu_dai,32*2); + if (ret < 0){ + dev_err(codec->dev, + "Failed to set BCLK ratio %d\n", ret); + return ret; + } + + /* Set proto sysclk */ + ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL, + sysclk, SND_SOC_CLOCK_IN); + if (ret < 0) { + dev_err(codec->dev, + "Failed to set WM8731 SYSCLK: %d\n", ret); + return ret; + } + + return 0; +} + +/* machine stream operations */ +static struct snd_soc_ops snd_rpi_proto_ops = { + .startup = snd_rpi_proto_startup, + .hw_params = snd_rpi_proto_hw_params, +}; + +static struct snd_soc_dai_link snd_rpi_proto_dai[] = { +{ + .name = "WM8731", + .stream_name = "WM8731 HiFi", + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "wm8731-hifi", + .platform_name = "bcm2708-i2s.0", + .codec_name = "wm8731.1-001a", + .dai_fmt = SND_SOC_DAIFMT_I2S + | SND_SOC_DAIFMT_NB_NF + | SND_SOC_DAIFMT_CBM_CFM, + .ops = &snd_rpi_proto_ops, +}, +}; + +/* audio machine driver */ +static struct snd_soc_card snd_rpi_proto = { + .name = "snd_rpi_proto", + .owner = THIS_MODULE, + .dai_link = snd_rpi_proto_dai, + .num_links = ARRAY_SIZE(snd_rpi_proto_dai), +}; + +static int snd_rpi_proto_probe(struct platform_device *pdev) +{ + int ret = 0; + + snd_rpi_proto.dev = &pdev->dev; + + if (pdev->dev.of_node) { + struct device_node *i2s_node; + struct snd_soc_dai_link *dai = &snd_rpi_proto_dai[0]; + i2s_node = of_parse_phandle(pdev->dev.of_node, + "i2s-controller", 0); + + if (i2s_node) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + } + } + + ret = snd_soc_register_card(&snd_rpi_proto); + if (ret && ret != -EPROBE_DEFER) + dev_err(&pdev->dev, + "snd_soc_register_card() failed: %d\n", ret); + + return ret; +} + + +static int snd_rpi_proto_remove(struct platform_device *pdev) +{ + return snd_soc_unregister_card(&snd_rpi_proto); +} + +static const struct of_device_id snd_rpi_proto_of_match[] = { + { .compatible = "rpi,rpi-proto", }, + {}, +}; +MODULE_DEVICE_TABLE(of, snd_rpi_proto_of_match); + +static struct platform_driver snd_rpi_proto_driver = { + .driver = { + .name = "snd-rpi-proto", + .owner = THIS_MODULE, + .of_match_table = snd_rpi_proto_of_match, + }, + .probe = snd_rpi_proto_probe, + .remove = snd_rpi_proto_remove, +}; + +module_platform_driver(snd_rpi_proto_driver); + +MODULE_AUTHOR("Florian Meier"); +MODULE_DESCRIPTION("ASoC Driver for Raspberry Pi connected to PROTO board (WM8731)"); +MODULE_LICENSE("GPL"); From 50df58347caf99a91c63ec69fbabc478c05be006 Mon Sep 17 00:00:00 2001 From: Jan Grulich Date: Mon, 24 Aug 2015 16:03:47 +0100 Subject: [PATCH 075/165] RaspiDAC3 support Signed-off-by: Jan Grulich config: fix RaspiDAC Rev.3x dependencies Change depends to SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S like the other I2S soundcard drivers. Signed-off-by: Matthias Reichl --- sound/soc/bcm/Kconfig | 8 ++ sound/soc/bcm/Makefile | 2 + sound/soc/bcm/raspidac3.c | 186 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 196 insertions(+) create mode 100644 sound/soc/bcm/raspidac3.c diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index 3cb799da4687e10cd1cfe9258e109b9fcf701c4c..a1b6a78182c9c3698df90e6c8ddaf1003bf01f91 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -66,3 +66,11 @@ config SND_BCM2708_SOC_IQAUDIO_DAC select SND_SOC_PCM512x_I2C help Say Y or M if you want to add support for IQaudIO-DAC. + +config SND_BCM2708_SOC_RASPIDAC3 + tristate "Support for RaspiDAC Rev.3x" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_PCM512x_I2C + select SND_SOC_TPA6130A2 + help + Say Y or M if you want to add support for RaspiDAC Rev.3x. diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index 5793c83cf2f53a831f5f49bb46b5bd4515d711a7..c078798106818e3a23f4fbb8068c9ff143b8a2c7 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -16,6 +16,7 @@ snd-soc-hifiberry-digi-objs := hifiberry_digi.o snd-soc-rpi-dac-objs := rpi-dac.o snd-soc-rpi-proto-objs := rpi-proto.o snd-soc-iqaudio-dac-objs := iqaudio-dac.o +snd-soc-raspidac3-objs := raspidac3.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) += snd-soc-hifiberry-amp.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o @@ -24,3 +25,4 @@ obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI) += snd-soc-hifiberry-digi.o obj-$(CONFIG_SND_BCM2708_SOC_RPI_DAC) += snd-soc-rpi-dac.o obj-$(CONFIG_SND_BCM2708_SOC_RPI_PROTO) += snd-soc-rpi-proto.o obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o +obj-$(CONFIG_SND_BCM2708_SOC_RASPIDAC3) += snd-soc-raspidac3.o diff --git a/sound/soc/bcm/raspidac3.c b/sound/soc/bcm/raspidac3.c new file mode 100644 index 0000000000000000000000000000000000000000..ad2b5b89bc8213dc2e277306ef50d6e32448759c --- /dev/null +++ b/sound/soc/bcm/raspidac3.c @@ -0,0 +1,186 @@ +/* + * ASoC Driver for RaspiDAC v3 + * + * Author: Jan Grulich + * Copyright 2015 + * based on code by Daniel Matuschek + * based on code by Florian Meier + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include + +#include +#include +#include +#include +#include +#include + +#include "../codecs/pcm512x.h" +#include "../codecs/tpa6130a2.h" + +/* sound card init */ +static int snd_rpi_raspidac3_init(struct snd_soc_pcm_runtime *rtd) +{ + int ret; + struct snd_soc_card *card = rtd->card; + struct snd_soc_codec *codec = rtd->codec; + snd_soc_update_bits(codec, PCM512x_GPIO_EN, 0x08, 0x08); + snd_soc_update_bits(codec, PCM512x_GPIO_OUTPUT_4, 0xf, 0x02); + snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x08,0x00); + + ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207); + if (ret < 0) + dev_warn(card->dev, "Failed to set volume limit: %d\n", ret); + else { + struct snd_kcontrol *kctl; + + ret = snd_soc_limit_volume(card, + "TPA6130A2 Headphone Playback Volume", + 54); + if (ret < 0) + dev_warn(card->dev, "Failed to set TPA6130A2 volume limit: %d\n", + ret); + kctl = snd_soc_card_get_kcontrol(card, + "TPA6130A2 Headphone Playback Volume"); + if (kctl) { + strcpy(kctl->id.name, "Headphones Playback Volume"); + /* disable the volume dB scale so alsamixer works */ + kctl->vd[0].access = SNDRV_CTL_ELEM_ACCESS_READWRITE; + } + + kctl = snd_soc_card_get_kcontrol(card, + "TPA6130A2 Headphone Playback Switch"); + if (kctl) + strcpy(kctl->id.name, "Headphones Playback Switch"); + } + + return 0; +} + +/* set hw parameters */ +static int snd_rpi_raspidac3_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + + unsigned int sample_bits = + snd_pcm_format_physical_width(params_format(params)); + + return snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2); +} + +/* startup */ +static int snd_rpi_raspidac3_startup(struct snd_pcm_substream *substream) { + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x08,0x08); + return 0; +} + +/* shutdown */ +static void snd_rpi_raspidac3_shutdown(struct snd_pcm_substream *substream) { + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x08,0x00); +} + +/* machine stream operations */ +static struct snd_soc_ops snd_rpi_raspidac3_ops = { + .hw_params = snd_rpi_raspidac3_hw_params, + .startup = snd_rpi_raspidac3_startup, + .shutdown = snd_rpi_raspidac3_shutdown, +}; + +/* interface setup */ +static struct snd_soc_dai_link snd_rpi_raspidac3_dai[] = { +{ + .name = "RaspiDAC Rev.3x", + .stream_name = "RaspiDAC HiFi", + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "pcm512x-hifi", + .platform_name = "bcm2708-i2s.0", + .codec_name = "pcm512x.1-004c", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + .ops = &snd_rpi_raspidac3_ops, + .init = snd_rpi_raspidac3_init, +}, +}; + +/* audio machine driver */ +static struct snd_soc_card snd_rpi_raspidac3 = { + .name = "RaspiDAC Rev.3x HiFi Audio Card", + .owner = THIS_MODULE, + .dai_link = snd_rpi_raspidac3_dai, + .num_links = ARRAY_SIZE(snd_rpi_raspidac3_dai), +}; + +/* sound card test */ +static int snd_rpi_raspidac3_probe(struct platform_device *pdev) +{ + int ret = 0; + + snd_rpi_raspidac3.dev = &pdev->dev; + + if (pdev->dev.of_node) { + struct device_node *i2s_node; + struct snd_soc_dai_link *dai = &snd_rpi_raspidac3_dai[0]; + i2s_node = of_parse_phandle(pdev->dev.of_node, + "i2s-controller", 0); + + if (i2s_node) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + } + } + + ret = snd_soc_register_card(&snd_rpi_raspidac3); + if (ret && ret != -EPROBE_DEFER) + dev_err(&pdev->dev, + "snd_soc_register_card() failed: %d\n", ret); + + return ret; +} + +/* sound card disconnect */ +static int snd_rpi_raspidac3_remove(struct platform_device *pdev) +{ + return snd_soc_unregister_card(&snd_rpi_raspidac3); +} + +static const struct of_device_id raspidac3_of_match[] = { + { .compatible = "jg,raspidacv3", }, + {}, +}; +MODULE_DEVICE_TABLE(of, raspidac3_of_match); + +/* sound card platform driver */ +static struct platform_driver snd_rpi_raspidac3_driver = { + .driver = { + .name = "snd-rpi-raspidac3", + .owner = THIS_MODULE, + .of_match_table = raspidac3_of_match, + }, + .probe = snd_rpi_raspidac3_probe, + .remove = snd_rpi_raspidac3_remove, +}; + +module_platform_driver(snd_rpi_raspidac3_driver); + +MODULE_AUTHOR("Jan Grulich "); +MODULE_DESCRIPTION("ASoC Driver for RaspiDAC Rev.3x"); +MODULE_LICENSE("GPL v2"); From 01d97e660859bbaf61ec25005d26327106eb7c1b Mon Sep 17 00:00:00 2001 From: Aaron Shaw Date: Thu, 7 Apr 2016 21:26:21 +0100 Subject: [PATCH 076/165] Add Support for JustBoom Audio boards justboom-dac: Adjust for ALSA API change As of 4.4, snd_soc_limit_volume now takes a struct snd_soc_card * rather than a struct snd_soc_codec *. Signed-off-by: Phil Elwell --- sound/soc/bcm/Kconfig | 14 +++ sound/soc/bcm/Makefile | 4 + sound/soc/bcm/justboom-dac.c | 163 +++++++++++++++++++++++++++++++ sound/soc/bcm/justboom-digi.c | 216 ++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 397 insertions(+) create mode 100644 sound/soc/bcm/justboom-dac.c create mode 100644 sound/soc/bcm/justboom-digi.c diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index a1b6a78182c9c3698df90e6c8ddaf1003bf01f91..c9c2f702a1ea5548eff093cc84dcc1de2f8724ad 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -60,6 +60,20 @@ config SND_BCM2708_SOC_RPI_PROTO help Say Y or M if you want to add support for Audio Codec Board PROTO (WM8731). +config SND_BCM2708_SOC_JUSTBOOM_DAC + tristate "Support for JustBoom DAC" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_PCM512x + help + Say Y or M if you want to add support for JustBoom DAC. + +config SND_BCM2708_SOC_JUSTBOOM_DIGI + tristate "Support for JustBoom Digi" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_WM8804 + help + Say Y or M if you want to add support for JustBoom Digi. + config SND_BCM2708_SOC_IQAUDIO_DAC tristate "Support for IQaudIO-DAC" depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index c078798106818e3a23f4fbb8068c9ff143b8a2c7..94f5a29386d4e164be428f35d98b007f79dad663 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -13,6 +13,8 @@ snd-soc-hifiberry-amp-objs := hifiberry_amp.o snd-soc-hifiberry-dac-objs := hifiberry_dac.o snd-soc-hifiberry-dacplus-objs := hifiberry_dacplus.o snd-soc-hifiberry-digi-objs := hifiberry_digi.o +snd-soc-justboom-dac-objs := justboom-dac.o +snd-soc-justboom-digi-objs := justboom-digi.o snd-soc-rpi-dac-objs := rpi-dac.o snd-soc-rpi-proto-objs := rpi-proto.o snd-soc-iqaudio-dac-objs := iqaudio-dac.o @@ -22,6 +24,8 @@ obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) += snd-soc-hifiberry-amp.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI) += snd-soc-hifiberry-digi.o +obj-$(CONFIG_SND_BCM2708_SOC_JUSTBOOM_DAC) += snd-soc-justboom-dac.o +obj-$(CONFIG_SND_BCM2708_SOC_JUSTBOOM_DIGI) += snd-soc-justboom-digi.o obj-$(CONFIG_SND_BCM2708_SOC_RPI_DAC) += snd-soc-rpi-dac.o obj-$(CONFIG_SND_BCM2708_SOC_RPI_PROTO) += snd-soc-rpi-proto.o obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o diff --git a/sound/soc/bcm/justboom-dac.c b/sound/soc/bcm/justboom-dac.c new file mode 100644 index 0000000000000000000000000000000000000000..9bab6cf063d3d450d96b4ee2196a7384e071cbdb --- /dev/null +++ b/sound/soc/bcm/justboom-dac.c @@ -0,0 +1,163 @@ +/* + * ASoC Driver for JustBoom DAC Raspberry Pi HAT Sound Card + * + * Author: Milan Neskovic + * Copyright 2016 + * based on code by Daniel Matuschek + * based on code by Florian Meier + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include + +#include +#include +#include +#include +#include + +#include "../codecs/pcm512x.h" + +static bool digital_gain_0db_limit = true; + +static int snd_rpi_justboom_dac_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_codec *codec = rtd->codec; + snd_soc_update_bits(codec, PCM512x_GPIO_EN, 0x08, 0x08); + snd_soc_update_bits(codec, PCM512x_GPIO_OUTPUT_4, 0xf, 0x02); + snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x08,0x08); + + if (digital_gain_0db_limit) + { + int ret; + struct snd_soc_card *card = rtd->card; + + ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207); + if (ret < 0) + dev_warn(card->dev, "Failed to set volume limit: %d\n", ret); + } + + return 0; +} + +static int snd_rpi_justboom_dac_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + /*return snd_soc_dai_set_bclk_ratio(cpu_dai, 64);*/ + unsigned int sample_bits = + snd_pcm_format_physical_width(params_format(params)); + return snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2); +} + +static int snd_rpi_justboom_dac_startup(struct snd_pcm_substream *substream) { + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x08,0x08); + return 0; +} + +static void snd_rpi_justboom_dac_shutdown(struct snd_pcm_substream *substream) { + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x08,0x00); +} + +/* machine stream operations */ +static struct snd_soc_ops snd_rpi_justboom_dac_ops = { + .hw_params = snd_rpi_justboom_dac_hw_params, + .startup = snd_rpi_justboom_dac_startup, + .shutdown = snd_rpi_justboom_dac_shutdown, +}; + +static struct snd_soc_dai_link snd_rpi_justboom_dac_dai[] = { +{ + .name = "JustBoom DAC", + .stream_name = "JustBoom DAC HiFi", + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "pcm512x-hifi", + .platform_name = "bcm2708-i2s.0", + .codec_name = "pcm512x.1-004d", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + .ops = &snd_rpi_justboom_dac_ops, + .init = snd_rpi_justboom_dac_init, +}, +}; + +/* audio machine driver */ +static struct snd_soc_card snd_rpi_justboom_dac = { + .name = "snd_rpi_justboom_dac", + .driver_name = "JustBoomDac", + .owner = THIS_MODULE, + .dai_link = snd_rpi_justboom_dac_dai, + .num_links = ARRAY_SIZE(snd_rpi_justboom_dac_dai), +}; + +static int snd_rpi_justboom_dac_probe(struct platform_device *pdev) +{ + int ret = 0; + + snd_rpi_justboom_dac.dev = &pdev->dev; + + if (pdev->dev.of_node) { + struct device_node *i2s_node; + struct snd_soc_dai_link *dai = &snd_rpi_justboom_dac_dai[0]; + i2s_node = of_parse_phandle(pdev->dev.of_node, + "i2s-controller", 0); + + if (i2s_node) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + } + + digital_gain_0db_limit = !of_property_read_bool( + pdev->dev.of_node, "justboom,24db_digital_gain"); + } + + ret = snd_soc_register_card(&snd_rpi_justboom_dac); + if (ret && ret != -EPROBE_DEFER) + dev_err(&pdev->dev, + "snd_soc_register_card() failed: %d\n", ret); + + return ret; +} + +static int snd_rpi_justboom_dac_remove(struct platform_device *pdev) +{ + return snd_soc_unregister_card(&snd_rpi_justboom_dac); +} + +static const struct of_device_id snd_rpi_justboom_dac_of_match[] = { + { .compatible = "justboom,justboom-dac", }, + {}, +}; +MODULE_DEVICE_TABLE(of, snd_rpi_justboom_dac_of_match); + +static struct platform_driver snd_rpi_justboom_dac_driver = { + .driver = { + .name = "snd-rpi-justboom-dac", + .owner = THIS_MODULE, + .of_match_table = snd_rpi_justboom_dac_of_match, + }, + .probe = snd_rpi_justboom_dac_probe, + .remove = snd_rpi_justboom_dac_remove, +}; + +module_platform_driver(snd_rpi_justboom_dac_driver); + +MODULE_AUTHOR("Milan Neskovic "); +MODULE_DESCRIPTION("ASoC Driver for JustBoom PI DAC HAT Sound Card"); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/bcm/justboom-digi.c b/sound/soc/bcm/justboom-digi.c new file mode 100644 index 0000000000000000000000000000000000000000..909cf8928f2f4313982316f9c5b8a709c1d47ab8 --- /dev/null +++ b/sound/soc/bcm/justboom-digi.c @@ -0,0 +1,216 @@ +/* + * ASoC Driver for JustBoom Raspberry Pi Digi HAT Sound Card + * + * Author: Milan Neskovic + * Copyright 2016 + * based on code by Daniel Matuschek + * based on code by Florian Meier + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include + +#include +#include +#include +#include +#include + +#include "../codecs/wm8804.h" + +static int snd_rpi_justboom_digi_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_codec *codec = rtd->codec; + + /* enable TX output */ + snd_soc_update_bits(codec, WM8804_PWRDN, 0x4, 0x0); + + return 0; +} + +static int snd_rpi_justboom_digi_startup(struct snd_pcm_substream *substream) { + /* turn on digital output */ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + snd_soc_update_bits(codec, WM8804_PWRDN, 0x3c, 0x00); + return 0; +} + +static void snd_rpi_justboom_digi_shutdown(struct snd_pcm_substream *substream) { + /* turn off output */ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + snd_soc_update_bits(codec, WM8804_PWRDN, 0x3c, 0x3c); +} + +static int snd_rpi_justboom_digi_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_soc_codec *codec = rtd->codec; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + + int sysclk = 27000000; /* This is fixed on this board */ + + long mclk_freq=0; + int mclk_div=1; + int sampling_freq=1; + + int ret; + + int samplerate = params_rate(params); + + if (samplerate<=96000) { + mclk_freq=samplerate*256; + mclk_div=WM8804_MCLKDIV_256FS; + } else { + mclk_freq=samplerate*128; + mclk_div=WM8804_MCLKDIV_128FS; + } + + switch (samplerate) { + case 32000: + sampling_freq=0x03; + break; + case 44100: + sampling_freq=0x00; + break; + case 48000: + sampling_freq=0x02; + break; + case 88200: + sampling_freq=0x08; + break; + case 96000: + sampling_freq=0x0a; + break; + case 176400: + sampling_freq=0x0c; + break; + case 192000: + sampling_freq=0x0e; + break; + default: + dev_err(codec->dev, + "Failed to set WM8804 SYSCLK, unsupported samplerate %d\n", + samplerate); + } + + snd_soc_dai_set_clkdiv(codec_dai, WM8804_MCLK_DIV, mclk_div); + snd_soc_dai_set_pll(codec_dai, 0, 0, sysclk, mclk_freq); + + ret = snd_soc_dai_set_sysclk(codec_dai, WM8804_TX_CLKSRC_PLL, + sysclk, SND_SOC_CLOCK_OUT); + if (ret < 0) { + dev_err(codec->dev, + "Failed to set WM8804 SYSCLK: %d\n", ret); + return ret; + } + + /* Enable TX output */ + snd_soc_update_bits(codec, WM8804_PWRDN, 0x4, 0x0); + + /* Power on */ + snd_soc_update_bits(codec, WM8804_PWRDN, 0x9, 0); + + /* set sampling frequency status bits */ + snd_soc_update_bits(codec, WM8804_SPDTX4, 0x0f, sampling_freq); + + return snd_soc_dai_set_bclk_ratio(cpu_dai,64); +} + +/* machine stream operations */ +static struct snd_soc_ops snd_rpi_justboom_digi_ops = { + .hw_params = snd_rpi_justboom_digi_hw_params, + .startup = snd_rpi_justboom_digi_startup, + .shutdown = snd_rpi_justboom_digi_shutdown, +}; + +static struct snd_soc_dai_link snd_rpi_justboom_digi_dai[] = { +{ + .name = "JustBoom Digi", + .stream_name = "JustBoom Digi HiFi", + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "wm8804-spdif", + .platform_name = "bcm2708-i2s.0", + .codec_name = "wm8804.1-003b", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, + .ops = &snd_rpi_justboom_digi_ops, + .init = snd_rpi_justboom_digi_init, +}, +}; + +/* audio machine driver */ +static struct snd_soc_card snd_rpi_justboom_digi = { + .name = "snd_rpi_justboom_digi", + .driver_name = "JustBoomDigi", + .owner = THIS_MODULE, + .dai_link = snd_rpi_justboom_digi_dai, + .num_links = ARRAY_SIZE(snd_rpi_justboom_digi_dai), +}; + +static int snd_rpi_justboom_digi_probe(struct platform_device *pdev) +{ + int ret = 0; + + snd_rpi_justboom_digi.dev = &pdev->dev; + + if (pdev->dev.of_node) { + struct device_node *i2s_node; + struct snd_soc_dai_link *dai = &snd_rpi_justboom_digi_dai[0]; + i2s_node = of_parse_phandle(pdev->dev.of_node, + "i2s-controller", 0); + + if (i2s_node) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + } + } + + ret = snd_soc_register_card(&snd_rpi_justboom_digi); + if (ret && ret != -EPROBE_DEFER) + dev_err(&pdev->dev, + "snd_soc_register_card() failed: %d\n", ret); + + return ret; +} + +static int snd_rpi_justboom_digi_remove(struct platform_device *pdev) +{ + return snd_soc_unregister_card(&snd_rpi_justboom_digi); +} + +static const struct of_device_id snd_rpi_justboom_digi_of_match[] = { + { .compatible = "justboom,justboom-digi", }, + {}, +}; +MODULE_DEVICE_TABLE(of, snd_rpi_justboom_digi_of_match); + +static struct platform_driver snd_rpi_justboom_digi_driver = { + .driver = { + .name = "snd-rpi-justboom-digi", + .owner = THIS_MODULE, + .of_match_table = snd_rpi_justboom_digi_of_match, + }, + .probe = snd_rpi_justboom_digi_probe, + .remove = snd_rpi_justboom_digi_remove, +}; + +module_platform_driver(snd_rpi_justboom_digi_driver); + +MODULE_AUTHOR("Milan Neskovic "); +MODULE_DESCRIPTION("ASoC Driver for JustBoom PI Digi HAT Sound Card"); +MODULE_LICENSE("GPL v2"); From ac95f6f251a9c713127de621c82fda3e232ae663 Mon Sep 17 00:00:00 2001 From: Andrey Grodzovsky Date: Tue, 3 May 2016 22:10:59 -0400 Subject: [PATCH 077/165] ARM: adau1977-adc: Add basic machine driver for adau1977 codec driver. This commit adds basic support for the codec usage including: Device tree overlay, binding I2S bus and setting I2S mode, clock source and frequency setting according to spec. Signed-off-by: Andrey Grodzovsky --- sound/soc/bcm/Kconfig | 7 +++ sound/soc/bcm/Makefile | 2 + sound/soc/bcm/adau1977-adc.c | 125 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 134 insertions(+) create mode 100644 sound/soc/bcm/adau1977-adc.c diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index c9c2f702a1ea5548eff093cc84dcc1de2f8724ad..72b86dad16b3dd440e5919308a5312fbb72e8703 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -88,3 +88,10 @@ config SND_BCM2708_SOC_RASPIDAC3 select SND_SOC_TPA6130A2 help Say Y or M if you want to add support for RaspiDAC Rev.3x. + +config SND_BCM2708_SOC_ADAU1977_ADC + tristate "Support for ADAU1977 ADC" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_ADAU1977_I2C + help + Say Y or M if you want to add support for ADAU1977 ADC. diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index 94f5a29386d4e164be428f35d98b007f79dad663..8c20ce506f2b0d653be39ceb9224503a0ef63c39 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -9,6 +9,7 @@ snd-soc-cygnus-objs := cygnus-pcm.o cygnus-ssp.o obj-$(CONFIG_SND_SOC_CYGNUS) += snd-soc-cygnus.o # BCM2708 Machine Support +snd-soc-adau1977-adc-objs := adau1977-adc.o snd-soc-hifiberry-amp-objs := hifiberry_amp.o snd-soc-hifiberry-dac-objs := hifiberry_dac.o snd-soc-hifiberry-dacplus-objs := hifiberry_dacplus.o @@ -20,6 +21,7 @@ snd-soc-rpi-proto-objs := rpi-proto.o snd-soc-iqaudio-dac-objs := iqaudio-dac.o snd-soc-raspidac3-objs := raspidac3.o +obj-$(CONFIG_SND_BCM2708_SOC_ADAU1977_ADC) += snd-soc-adau1977-adc.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) += snd-soc-hifiberry-amp.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o diff --git a/sound/soc/bcm/adau1977-adc.c b/sound/soc/bcm/adau1977-adc.c new file mode 100644 index 0000000000000000000000000000000000000000..f3d7e5db7bb912e1d7ca6f8e8d42df5f59c9edb8 --- /dev/null +++ b/sound/soc/bcm/adau1977-adc.c @@ -0,0 +1,125 @@ +/* + * ASoC Driver for ADAU1977 ADC + * + * Author: Andrey Grodzovsky + * Copyright 2016 + * + * This file is based on hifibery_dac driver by Florian Meier. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include + +#include +#include +#include +#include +#include + +enum adau1977_clk_id { + ADAU1977_SYSCLK, +}; + +enum adau1977_sysclk_src { + ADAU1977_SYSCLK_SRC_MCLK, + ADAU1977_SYSCLK_SRC_LRCLK, +}; + +static int eval_adau1977_init(struct snd_soc_pcm_runtime *rtd) +{ + int ret; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + + ret = snd_soc_dai_set_tdm_slot(codec_dai, 0, 0, 0, 0); + if (ret < 0) + return ret; + + return snd_soc_codec_set_sysclk(rtd->codec, ADAU1977_SYSCLK, + ADAU1977_SYSCLK_SRC_MCLK, 11289600, SND_SOC_CLOCK_IN); +} + +static struct snd_soc_dai_link snd_rpi_adau1977_dai[] = { + { + .name = "adau1977", + .stream_name = "ADAU1977", + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "adau1977-hifi", + .platform_name = "bcm2708-i2s.0", + .codec_name = "adau1977.1-0011", + .init = eval_adau1977_init, + .dai_fmt = SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, + }, +}; + +/* audio machine driver */ +static struct snd_soc_card snd_adau1977_adc = { + .name = "snd_rpi_adau1977_adc", + .owner = THIS_MODULE, + .dai_link = snd_rpi_adau1977_dai, + .num_links = ARRAY_SIZE(snd_rpi_adau1977_dai), +}; + +static int snd_adau1977_adc_probe(struct platform_device *pdev) +{ + int ret = 0; + + snd_adau1977_adc.dev = &pdev->dev; + if (pdev->dev.of_node) { + struct device_node *i2s_node; + struct snd_soc_dai_link *dai = &snd_rpi_adau1977_dai[0]; + i2s_node = of_parse_phandle(pdev->dev.of_node, + "i2s-controller", 0); + + if (i2s_node) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + } + } + + ret = snd_soc_register_card(&snd_adau1977_adc); + if (ret && ret != -EPROBE_DEFER) + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret); + + return ret; +} + +static int snd_adau1977_adc_remove(struct platform_device *pdev) +{ + return snd_soc_unregister_card(&snd_adau1977_adc); +} + +static const struct of_device_id snd_adau1977_adc_of_match[] = { + { .compatible = "adi,adau1977-adc", }, + {}, +}; + +MODULE_DEVICE_TABLE(of, snd_adau1977_adc_of_match); + +static struct platform_driver snd_adau1977_adc_driver = { + .driver = { + .name = "snd-adau1977-adc", + .owner = THIS_MODULE, + .of_match_table = snd_adau1977_adc_of_match, + }, + .probe = snd_adau1977_adc_probe, + .remove = snd_adau1977_adc_remove, +}; + +module_platform_driver(snd_adau1977_adc_driver); + +MODULE_AUTHOR("Andrey Grodzovsky "); +MODULE_DESCRIPTION("ASoC Driver for ADAU1977 ADC"); +MODULE_LICENSE("GPL v2"); From f18cd7471ca951c2b19a6078d27d7e3401aa6e11 Mon Sep 17 00:00:00 2001 From: Matt Flax Date: Mon, 16 May 2016 21:36:31 +1000 Subject: [PATCH 078/165] New AudioInjector.net Pi soundcard with low jitter audio in and out. Contains the sound/soc/bcm ALSA machine driver and necessary alterations to the Kconfig and Makefile. Adds the dts overlay and updates the Makefile and README. Updates the relevant defconfig files to enable building for the Raspberry Pi. Thanks to Phil Elwell (pelwell) for the review, simple-card concepts and discussion. Thanks to Clive Messer for overlay naming suggestions. Added support for headphones, microphone and bclk_ratio settings. This patch adds headphone and microphone capability to the Audio Injector sound card. The patch also sets the bit clock ratio for use in the bcm2835-i2s driver. The bcm2835-i2s can't handle an 8 kHz sample rate when the bit clock is at 12 MHz because its register is only 10 bits wide which can't represent the ch2 offset of 1508. For that reason, the rate constraint is added. --- sound/soc/bcm/Kconfig | 7 ++ sound/soc/bcm/Makefile | 3 + sound/soc/bcm/audioinjector-pi-soundcard.c | 193 +++++++++++++++++++++++++++++ 3 files changed, 203 insertions(+) create mode 100644 sound/soc/bcm/audioinjector-pi-soundcard.c diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index 72b86dad16b3dd440e5919308a5312fbb72e8703..7ebfa8261a69d31a5add15ae03399dc6d8872581 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -95,3 +95,10 @@ config SND_BCM2708_SOC_ADAU1977_ADC select SND_SOC_ADAU1977_I2C help Say Y or M if you want to add support for ADAU1977 ADC. + +config SND_AUDIOINJECTOR_PI_SOUNDCARD + tristate "Support for audioinjector.net Pi add on soundcard" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_WM8731 + help + Say Y or M if you want to add support for audioinjector.net Pi Hat diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index 8c20ce506f2b0d653be39ceb9224503a0ef63c39..4d4189b6d0c57645c5ec19554f1e77d4ccc716d6 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -20,6 +20,7 @@ snd-soc-rpi-dac-objs := rpi-dac.o snd-soc-rpi-proto-objs := rpi-proto.o snd-soc-iqaudio-dac-objs := iqaudio-dac.o snd-soc-raspidac3-objs := raspidac3.o +snd-soc-audioinjector-pi-soundcard-objs := audioinjector-pi-soundcard.o obj-$(CONFIG_SND_BCM2708_SOC_ADAU1977_ADC) += snd-soc-adau1977-adc.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) += snd-soc-hifiberry-amp.o @@ -32,3 +33,5 @@ obj-$(CONFIG_SND_BCM2708_SOC_RPI_DAC) += snd-soc-rpi-dac.o obj-$(CONFIG_SND_BCM2708_SOC_RPI_PROTO) += snd-soc-rpi-proto.o obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o obj-$(CONFIG_SND_BCM2708_SOC_RASPIDAC3) += snd-soc-raspidac3.o +obj-$(CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD) += snd-soc-audioinjector-pi-soundcard.o + diff --git a/sound/soc/bcm/audioinjector-pi-soundcard.c b/sound/soc/bcm/audioinjector-pi-soundcard.c new file mode 100644 index 0000000000000000000000000000000000000000..ef54e0f07ea03f59e9957b5d98f3e7fdc998e469 --- /dev/null +++ b/sound/soc/bcm/audioinjector-pi-soundcard.c @@ -0,0 +1,193 @@ +/* + * ASoC Driver for AudioInjector Pi add on soundcard + * + * Created on: 13-May-2016 + * Author: flatmax@flatmax.org + * based on code by Cliff Cai for the ssm2602 machine blackfin. + * with help from Lars-Peter Clausen for simplifying the original code to use the dai_fmt field. + * i2s_node code taken from the other sound/soc/bcm machine drivers. + * + * Copyright (C) 2016 Flatmax Pty. Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include + +#include +#include +#include +#include + +#include "../codecs/wm8731.h" + +static const unsigned int bcm2835_rates_12000000[] = { + 8000, 16000, 32000, 44100, 48000, 96000, 88200, +}; + +static struct snd_pcm_hw_constraint_list bcm2835_constraints_12000000 = { + .list = bcm2835_rates_12000000, + .count = ARRAY_SIZE(bcm2835_rates_12000000), +}; + +static int snd_audioinjector_pi_soundcard_startup(struct snd_pcm_substream *substream) +{ + /* Setup constraints, because there is a 12 MHz XTAL on the board */ + snd_pcm_hw_constraint_list(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + &bcm2835_constraints_12000000); + return 0; +} + +static int snd_audioinjector_pi_soundcard_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + + switch (params_rate(params)){ + case 8000: + return snd_soc_dai_set_bclk_ratio(cpu_dai, 1); + case 16000: + return snd_soc_dai_set_bclk_ratio(cpu_dai, 750); + case 32000: + return snd_soc_dai_set_bclk_ratio(cpu_dai, 375); + case 44100: + return snd_soc_dai_set_bclk_ratio(cpu_dai, 272); + case 48000: + return snd_soc_dai_set_bclk_ratio(cpu_dai, 250); + case 88200: + return snd_soc_dai_set_bclk_ratio(cpu_dai, 136); + case 96000: + return snd_soc_dai_set_bclk_ratio(cpu_dai, 125); + default: + return snd_soc_dai_set_bclk_ratio(cpu_dai, 125); + } +} + +/* machine stream operations */ +static struct snd_soc_ops snd_audioinjector_pi_soundcard_ops = { + .startup = snd_audioinjector_pi_soundcard_startup, + .hw_params = snd_audioinjector_pi_soundcard_hw_params, +}; + +static int audioinjector_pi_soundcard_dai_init(struct snd_soc_pcm_runtime *rtd) +{ + return snd_soc_dai_set_sysclk(rtd->codec_dai, WM8731_SYSCLK_XTAL, 12000000, SND_SOC_CLOCK_IN); +} + +static struct snd_soc_dai_link audioinjector_pi_soundcard_dai[] = { + { + .name = "AudioInjector audio", + .stream_name = "AudioInjector audio", + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "wm8731-hifi", + .platform_name = "bcm2835-i2s.0", + .codec_name = "wm8731.1-001a", + .ops = &snd_audioinjector_pi_soundcard_ops, + .init = audioinjector_pi_soundcard_dai_init, + .dai_fmt = SND_SOC_DAIFMT_CBM_CFM|SND_SOC_DAIFMT_I2S|SND_SOC_DAIFMT_NB_NF, + }, +}; + +static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = { + SND_SOC_DAPM_HP("Headphone Jack", NULL), + SND_SOC_DAPM_SPK("Ext Spk", NULL), + SND_SOC_DAPM_LINE("Line In Jacks", NULL), + SND_SOC_DAPM_MIC("Microphone", NULL), +}; + +static const struct snd_soc_dapm_route audioinjector_audio_map[] = { + /* headphone connected to LHPOUT, RHPOUT */ + {"Headphone Jack", NULL, "LHPOUT"}, + {"Headphone Jack", NULL, "RHPOUT"}, + + /* speaker connected to LOUT, ROUT */ + {"Ext Spk", NULL, "ROUT"}, + {"Ext Spk", NULL, "LOUT"}, + + /* line inputs */ + {"Line In Jacks", NULL, "Line Input"}, + + /* mic is connected to Mic Jack, with WM8731 Mic Bias */ + {"Microphone", NULL, "Mic Bias"}, +}; + +static struct snd_soc_card snd_soc_audioinjector = { + .name = "audioinjector-pi-soundcard", + .dai_link = audioinjector_pi_soundcard_dai, + .num_links = ARRAY_SIZE(audioinjector_pi_soundcard_dai), + + .dapm_widgets = wm8731_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(wm8731_dapm_widgets), + .dapm_routes = audioinjector_audio_map, + .num_dapm_routes = ARRAY_SIZE(audioinjector_audio_map), +}; + +static int audioinjector_pi_soundcard_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &snd_soc_audioinjector; + int ret; + + card->dev = &pdev->dev; + + if (pdev->dev.of_node) { + struct snd_soc_dai_link *dai = &audioinjector_pi_soundcard_dai[0]; + struct device_node *i2s_node = of_parse_phandle(pdev->dev.of_node, + "i2s-controller", 0); + + if (i2s_node) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + } else + if (!dai->cpu_of_node) { + dev_err(&pdev->dev, "Property 'i2s-controller' missing or invalid\n"); + return -EINVAL; + } + } + + if ((ret = snd_soc_register_card(card))) { + dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); + } + return ret; +} + +static int audioinjector_pi_soundcard_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + return snd_soc_unregister_card(card); + +} + +static const struct of_device_id audioinjector_pi_soundcard_of_match[] = { + { .compatible = "ai,audioinjector-pi-soundcard", }, + {}, +}; +MODULE_DEVICE_TABLE(of, audioinjector_pi_soundcard_of_match); + +static struct platform_driver audioinjector_pi_soundcard_driver = { + .driver = { + .name = "audioinjector-audio", + .owner = THIS_MODULE, + .of_match_table = audioinjector_pi_soundcard_of_match, + }, + .probe = audioinjector_pi_soundcard_probe, + .remove = audioinjector_pi_soundcard_remove, +}; + +module_platform_driver(audioinjector_pi_soundcard_driver); +MODULE_AUTHOR("Matt Flax "); +MODULE_DESCRIPTION("AudioInjector.net Pi Soundcard"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:audioinjector-pi-soundcard"); + From 16b653a5097cd5a1c04febf4bc0f5e3bd362b4e5 Mon Sep 17 00:00:00 2001 From: DigitalDreamtime Date: Thu, 30 Jun 2016 18:38:42 +0100 Subject: [PATCH 079/165] Add IQAudIO Digi WM8804 board support Support IQAudIO Digi board with iqaudio_digi machine driver and iqaudio-digi-wm8804-audio overlay. NB. Machine driver is a cut and paste of hifiberry_digi code, with format and general cleanup to comply with kernel coding standards. Signed-off-by: DigitalDreamtime --- sound/soc/bcm/Kconfig | 7 ++ sound/soc/bcm/Makefile | 2 + sound/soc/bcm/iqaudio_digi.c | 239 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 248 insertions(+) create mode 100644 sound/soc/bcm/iqaudio_digi.c diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index 7ebfa8261a69d31a5add15ae03399dc6d8872581..ebc2b3d7b0bd4a1126adbc1315120fe5c6aca413 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -81,6 +81,13 @@ config SND_BCM2708_SOC_IQAUDIO_DAC help Say Y or M if you want to add support for IQaudIO-DAC. +config SND_BCM2708_SOC_IQAUDIO_DIGI + tristate "Support for IQAudIO Digi" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_WM8804 + help + Say Y or M if you want to add support for IQAudIO Digital IO board. + config SND_BCM2708_SOC_RASPIDAC3 tristate "Support for RaspiDAC Rev.3x" depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index 4d4189b6d0c57645c5ec19554f1e77d4ccc716d6..ee41d6bbdbbda2913aba143a59b4953e800bdb3c 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -19,6 +19,7 @@ snd-soc-justboom-digi-objs := justboom-digi.o snd-soc-rpi-dac-objs := rpi-dac.o snd-soc-rpi-proto-objs := rpi-proto.o snd-soc-iqaudio-dac-objs := iqaudio-dac.o +snd-soc-iqaudio-digi-objs := iqaudio_digi.o snd-soc-raspidac3-objs := raspidac3.o snd-soc-audioinjector-pi-soundcard-objs := audioinjector-pi-soundcard.o @@ -32,6 +33,7 @@ obj-$(CONFIG_SND_BCM2708_SOC_JUSTBOOM_DIGI) += snd-soc-justboom-digi.o obj-$(CONFIG_SND_BCM2708_SOC_RPI_DAC) += snd-soc-rpi-dac.o obj-$(CONFIG_SND_BCM2708_SOC_RPI_PROTO) += snd-soc-rpi-proto.o obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o +obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DIGI) += snd-soc-iqaudio-digi.o obj-$(CONFIG_SND_BCM2708_SOC_RASPIDAC3) += snd-soc-raspidac3.o obj-$(CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD) += snd-soc-audioinjector-pi-soundcard.o diff --git a/sound/soc/bcm/iqaudio_digi.c b/sound/soc/bcm/iqaudio_digi.c new file mode 100644 index 0000000000000000000000000000000000000000..33aa2be8a43a12a12cfb5d844dd9732c2393d510 --- /dev/null +++ b/sound/soc/bcm/iqaudio_digi.c @@ -0,0 +1,239 @@ +/* + * ASoC Driver for IQAudIO WM8804 Digi + * + * Author: Daniel Matuschek + * based on the HifiBerry DAC driver by Florian Meier + * Copyright 2013 + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include + +#include +#include +#include +#include +#include + +#include "../codecs/wm8804.h" + +static short int auto_shutdown_output; +module_param(auto_shutdown_output, short, + S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP); +MODULE_PARM_DESC(auto_shutdown_output, "Shutdown SP/DIF output if playback is stopped"); + +static int snd_rpi_iqaudio_digi_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_codec *codec = rtd->codec; + + /* enable TX output */ + snd_soc_update_bits(codec, WM8804_PWRDN, 0x4, 0x0); + + return 0; +} + +static int snd_rpi_iqaudio_digi_startup(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + + /* turn on digital output */ + snd_soc_update_bits(codec, WM8804_PWRDN, 0x3c, 0x00); + + return 0; +} + +static void snd_rpi_iqaudio_digi_shutdown(struct snd_pcm_substream *substream) +{ + if (auto_shutdown_output) { + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + + /* turn off digital output */ + snd_soc_update_bits(codec, WM8804_PWRDN, 0x3c, 0x3c); + } +} + + +static int snd_rpi_iqaudio_digi_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_soc_codec *codec = rtd->codec; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + + int sysclk = 27000000; /* This is fixed on this board */ + + long mclk_freq = 0; + int mclk_div = 1; + int sampling_freq = 1; + + int ret; + + int samplerate = params_rate(params); + + if (samplerate <= 96000) { + mclk_freq = samplerate * 256; + mclk_div = WM8804_MCLKDIV_256FS; + } else { + mclk_freq = samplerate * 128; + mclk_div = WM8804_MCLKDIV_128FS; + } + + switch (samplerate) { + case 32000: + sampling_freq = 0x03; + break; + case 44100: + sampling_freq = 0x00; + break; + case 48000: + sampling_freq = 0x02; + break; + case 88200: + sampling_freq = 0x08; + break; + case 96000: + sampling_freq = 0x0a; + break; + case 176400: + sampling_freq = 0x0c; + break; + case 192000: + sampling_freq = 0x0e; + break; + default: + dev_err(codec->dev, "Failed to set WM8804 SYSCLK, unsupported samplerate %d\n", + samplerate); + } + + snd_soc_dai_set_clkdiv(codec_dai, WM8804_MCLK_DIV, mclk_div); + snd_soc_dai_set_pll(codec_dai, 0, 0, sysclk, mclk_freq); + + ret = snd_soc_dai_set_sysclk(codec_dai, WM8804_TX_CLKSRC_PLL, + sysclk, SND_SOC_CLOCK_OUT); + if (ret < 0) { + dev_err(codec->dev, "Failed to set WM8804 SYSCLK: %d\n", ret); + return ret; + } + + /* Enable TX output */ + snd_soc_update_bits(codec, WM8804_PWRDN, 0x4, 0x0); + + /* Power on */ + snd_soc_update_bits(codec, WM8804_PWRDN, 0x9, 0); + + /* set sampling frequency status bits */ + snd_soc_update_bits(codec, WM8804_SPDTX4, 0x0f, sampling_freq); + + return snd_soc_dai_set_bclk_ratio(cpu_dai, 64); +} + +/* machine stream operations */ +static struct snd_soc_ops snd_rpi_iqaudio_digi_ops = { + .hw_params = snd_rpi_iqaudio_digi_hw_params, + .startup = snd_rpi_iqaudio_digi_startup, + .shutdown = snd_rpi_iqaudio_digi_shutdown, +}; + +static struct snd_soc_dai_link snd_rpi_iqaudio_digi_dai[] = { +{ + .name = "IQAudIO Digi", + .stream_name = "IQAudIO Digi HiFi", + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "wm8804-spdif", + .platform_name = "bcm2708-i2s.0", + .codec_name = "wm8804.1-003b", + .dai_fmt = SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, + .ops = &snd_rpi_iqaudio_digi_ops, + .init = snd_rpi_iqaudio_digi_init, +}, +}; + +/* audio machine driver */ +static struct snd_soc_card snd_rpi_iqaudio_digi = { + .name = "IQAudIODigi", + .owner = THIS_MODULE, + .dai_link = snd_rpi_iqaudio_digi_dai, + .num_links = ARRAY_SIZE(snd_rpi_iqaudio_digi_dai), +}; + +static int snd_rpi_iqaudio_digi_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &snd_rpi_iqaudio_digi; + char *prefix = "wm8804-digi,"; + char prop[128]; + struct device_node *np; + int ret = 0; + + snd_rpi_iqaudio_digi.dev = &pdev->dev; + + np = pdev->dev.of_node; + if (np) { + struct snd_soc_dai_link *dai = &snd_rpi_iqaudio_digi_dai[0]; + struct device_node *i2s_node; + + i2s_node = of_parse_phandle(np, "i2s-controller", 0); + if (i2s_node) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + } + + snprintf(prop, sizeof(prop), "%scard-name", prefix); + of_property_read_string(np, prop, &card->name); + + snprintf(prop, sizeof(prop), "%sdai-name", prefix); + of_property_read_string(np, prop, &dai->name); + + snprintf(prop, sizeof(prop), "%sdai-stream-name", prefix); + of_property_read_string(np, prop, &dai->stream_name); + } + + ret = snd_soc_register_card(card); + if (ret && ret != -EPROBE_DEFER) + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", + ret); + + return ret; +} + +static int snd_rpi_iqaudio_digi_remove(struct platform_device *pdev) +{ + return snd_soc_unregister_card(&snd_rpi_iqaudio_digi); +} + +static const struct of_device_id snd_rpi_iqaudio_digi_of_match[] = { + { .compatible = "iqaudio,wm8804-digi", }, + {}, +}; +MODULE_DEVICE_TABLE(of, snd_rpi_iqaudio_digi_of_match); + +static struct platform_driver snd_rpi_iqaudio_digi_driver = { + .driver = { + .name = "IQAudIODigi", + .owner = THIS_MODULE, + .of_match_table = snd_rpi_iqaudio_digi_of_match, + }, + .probe = snd_rpi_iqaudio_digi_probe, + .remove = snd_rpi_iqaudio_digi_remove, +}; + +module_platform_driver(snd_rpi_iqaudio_digi_driver); + +MODULE_AUTHOR("Daniel Matuschek "); +MODULE_DESCRIPTION("ASoC Driver for IQAudIO WM8804 Digi"); +MODULE_LICENSE("GPL v2"); From b6dae67e4cad0b02c1a96724fb64a582050b28d1 Mon Sep 17 00:00:00 2001 From: escalator2015 Date: Tue, 24 May 2016 16:20:09 +0100 Subject: [PATCH 080/165] New driver for RRA DigiDAC1 soundcard using WM8741 + WM8804 --- sound/soc/bcm/Kconfig | 8 + sound/soc/bcm/Makefile | 2 + sound/soc/bcm/digidac1-soundcard.c | 422 +++++++++++++++++++++++++++++++++++++ 3 files changed, 432 insertions(+) create mode 100644 sound/soc/bcm/digidac1-soundcard.c diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index ebc2b3d7b0bd4a1126adbc1315120fe5c6aca413..c09de7aac7b448ad3af1b50f25ec56f682f872b7 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -109,3 +109,11 @@ config SND_AUDIOINJECTOR_PI_SOUNDCARD select SND_SOC_WM8731 help Say Y or M if you want to add support for audioinjector.net Pi Hat + +config SND_DIGIDAC1_SOUNDCARD + tristate "Support for Red Rocks Audio DigiDAC1" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_WM8804 + select SND_SOC_WM8741 + help + Say Y or M if you want to add support for Red Rocks Audio DigiDAC1 board. diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index ee41d6bbdbbda2913aba143a59b4953e800bdb3c..855f4dbe574fcb725b0309710611fa381e1e29d6 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -22,6 +22,7 @@ snd-soc-iqaudio-dac-objs := iqaudio-dac.o snd-soc-iqaudio-digi-objs := iqaudio_digi.o snd-soc-raspidac3-objs := raspidac3.o snd-soc-audioinjector-pi-soundcard-objs := audioinjector-pi-soundcard.o +snd-soc-digidac1-soundcard-objs := digidac1-soundcard.o obj-$(CONFIG_SND_BCM2708_SOC_ADAU1977_ADC) += snd-soc-adau1977-adc.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) += snd-soc-hifiberry-amp.o @@ -36,4 +37,5 @@ obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DIGI) += snd-soc-iqaudio-digi.o obj-$(CONFIG_SND_BCM2708_SOC_RASPIDAC3) += snd-soc-raspidac3.o obj-$(CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD) += snd-soc-audioinjector-pi-soundcard.o +obj-$(CONFIG_SND_DIGIDAC1_SOUNDCARD) += snd-soc-digidac1-soundcard.o diff --git a/sound/soc/bcm/digidac1-soundcard.c b/sound/soc/bcm/digidac1-soundcard.c new file mode 100644 index 0000000000000000000000000000000000000000..f200688bb4ae32b90a0ced555aed94b0add0ac8a --- /dev/null +++ b/sound/soc/bcm/digidac1-soundcard.c @@ -0,0 +1,422 @@ +/* + * ASoC Driver for RRA DigiDAC1 + * Copyright 2016 + * Author: José M. Tasende + * based on the HifiBerry DAC driver by Florian Meier + * and the Wolfson card driver by Nikesh Oswal, + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "../codecs/wm8804.h" +#include "../codecs/wm8741.h" + +#define WM8741_NUM_SUPPLIES 2 + +/* codec private data */ +struct wm8741_priv { + struct wm8741_platform_data pdata; + struct regmap *regmap; + struct regulator_bulk_data supplies[WM8741_NUM_SUPPLIES]; + unsigned int sysclk; + const struct snd_pcm_hw_constraint_list *sysclk_constraints; +}; + +static int samplerate = 44100; + +/* New Alsa Controls not exposed by original wm8741 codec driver */ +/* in actual driver the att. adjustment is wrong because */ +/* this DAC has a coarse attenuation register with 4dB steps */ +/* and a fine level register with 0.125dB steps */ +/* each register has 32 steps so combining both we have 1024 steps */ +/* of 0.125 dB. */ +/* The original level controls from driver are removed at startup */ +/* and replaced by the corrected ones. */ +/* The same wm8741 driver can be used for wm8741 and wm8742 devices */ + +static const DECLARE_TLV_DB_SCALE(dac_tlv_fine, 0, 13, 0); +static const DECLARE_TLV_DB_SCALE(dac_tlv_coarse, -12700, 400, 1); +static const char *w8741_dither[4] = {"Off", "RPDF", "TPDF", "HPDF"}; +static const char *w8741_filter[5] = { + "Type 1", "Type 2", "Type 3", "Type 4", "Type 5"}; +static const char *w8741_switch[2] = {"Off", "On"}; +static const struct soc_enum w8741_enum[] = { +SOC_ENUM_SINGLE(WM8741_MODE_CONTROL_2, 0, 4, w8741_dither),/* dithering type */ +SOC_ENUM_SINGLE(WM8741_FILTER_CONTROL, 0, 5, w8741_filter),/* filter type */ +SOC_ENUM_SINGLE(WM8741_FORMAT_CONTROL, 6, 2, w8741_switch),/* phase invert */ +SOC_ENUM_SINGLE(WM8741_VOLUME_CONTROL, 0, 2, w8741_switch),/* volume ramp */ +SOC_ENUM_SINGLE(WM8741_VOLUME_CONTROL, 3, 2, w8741_switch),/* soft mute */ +}; + +static const struct snd_kcontrol_new w8741_snd_controls_stereo[] = { +SOC_DOUBLE_R_TLV("DAC Fine Playback Volume", WM8741_DACLLSB_ATTENUATION, + WM8741_DACRLSB_ATTENUATION, 0, 31, 1, dac_tlv_fine), +SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8741_DACLMSB_ATTENUATION, + WM8741_DACRMSB_ATTENUATION, 0, 31, 1, dac_tlv_coarse), +SOC_ENUM("DAC Dither", w8741_enum[0]), +SOC_ENUM("DAC Digital Filter", w8741_enum[1]), +SOC_ENUM("DAC Phase Invert", w8741_enum[2]), +SOC_ENUM("DAC Volume Ramp", w8741_enum[3]), +SOC_ENUM("DAC Soft Mute", w8741_enum[4]), +}; + +static const struct snd_kcontrol_new w8741_snd_controls_mono_left[] = { +SOC_SINGLE_TLV("DAC Fine Playback Volume", WM8741_DACLLSB_ATTENUATION, + 0, 31, 0, dac_tlv_fine), +SOC_SINGLE_TLV("Digital Playback Volume", WM8741_DACLMSB_ATTENUATION, + 0, 31, 1, dac_tlv_coarse), +SOC_ENUM("DAC Dither", w8741_enum[0]), +SOC_ENUM("DAC Digital Filter", w8741_enum[1]), +SOC_ENUM("DAC Phase Invert", w8741_enum[2]), +SOC_ENUM("DAC Volume Ramp", w8741_enum[3]), +SOC_ENUM("DAC Soft Mute", w8741_enum[4]), +}; + +static const struct snd_kcontrol_new w8741_snd_controls_mono_right[] = { +SOC_SINGLE_TLV("DAC Fine Playback Volume", WM8741_DACRLSB_ATTENUATION, + 0, 31, 0, dac_tlv_fine), +SOC_SINGLE_TLV("Digital Playback Volume", WM8741_DACRMSB_ATTENUATION, + 0, 31, 1, dac_tlv_coarse), +SOC_ENUM("DAC Dither", w8741_enum[0]), +SOC_ENUM("DAC Digital Filter", w8741_enum[1]), +SOC_ENUM("DAC Phase Invert", w8741_enum[2]), +SOC_ENUM("DAC Volume Ramp", w8741_enum[3]), +SOC_ENUM("DAC Soft Mute", w8741_enum[4]), +}; + +static int w8741_add_controls(struct snd_soc_codec *codec) +{ + struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); + + switch (wm8741->pdata.diff_mode) { + case WM8741_DIFF_MODE_STEREO: + case WM8741_DIFF_MODE_STEREO_REVERSED: + snd_soc_add_codec_controls(codec, + w8741_snd_controls_stereo, + ARRAY_SIZE(w8741_snd_controls_stereo)); + break; + case WM8741_DIFF_MODE_MONO_LEFT: + snd_soc_add_codec_controls(codec, + w8741_snd_controls_mono_left, + ARRAY_SIZE(w8741_snd_controls_mono_left)); + break; + case WM8741_DIFF_MODE_MONO_RIGHT: + snd_soc_add_codec_controls(codec, + w8741_snd_controls_mono_right, + ARRAY_SIZE(w8741_snd_controls_mono_right)); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int digidac1_soundcard_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_codec *codec = rtd->codec; + struct snd_soc_card *card = rtd->card; + struct snd_soc_pcm_runtime *wm8741_rtd; + struct snd_soc_codec *wm8741_codec; + struct snd_card *sound_card = card->snd_card; + struct snd_kcontrol *kctl; + int ret; + + wm8741_rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name); + if (!wm8741_rtd) { + dev_warn(card->dev, "digidac1_soundcard_init: couldn't get wm8741 rtd\n"); + return -EFAULT; + } + wm8741_codec = wm8741_rtd->codec; + ret = w8741_add_controls(wm8741_codec); + if (ret < 0) + dev_warn(card->dev, "Failed to add new wm8741 controls: %d\n", + ret); + + /* enable TX output */ + snd_soc_update_bits(codec, WM8804_PWRDN, 0x4, 0x0); + + kctl = snd_soc_card_get_kcontrol(card, + "Playback Volume"); + if (kctl) { + kctl->vd[0].access = SNDRV_CTL_ELEM_ACCESS_READWRITE; + snd_ctl_remove(sound_card, kctl); + } + kctl = snd_soc_card_get_kcontrol(card, + "Fine Playback Volume"); + if (kctl) { + kctl->vd[0].access = SNDRV_CTL_ELEM_ACCESS_READWRITE; + snd_ctl_remove(sound_card, kctl); + } + return 0; +} + +static int digidac1_soundcard_startup(struct snd_pcm_substream *substream) +{ + /* turn on wm8804 digital output */ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + struct snd_soc_card *card = rtd->card; + struct snd_soc_pcm_runtime *wm8741_rtd; + struct snd_soc_codec *wm8741_codec; + + snd_soc_update_bits(codec, WM8804_PWRDN, 0x3c, 0x00); + wm8741_rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name); + if (!wm8741_rtd) { + dev_warn(card->dev, "digidac1_soundcard_startup: couldn't get WM8741 rtd\n"); + return -EFAULT; + } + wm8741_codec = wm8741_rtd->codec; + + /* latch wm8741 level */ + snd_soc_update_bits(wm8741_codec, WM8741_DACLLSB_ATTENUATION, + WM8741_UPDATELL, WM8741_UPDATELL); + snd_soc_update_bits(wm8741_codec, WM8741_DACLMSB_ATTENUATION, + WM8741_UPDATELM, WM8741_UPDATELM); + snd_soc_update_bits(wm8741_codec, WM8741_DACRLSB_ATTENUATION, + WM8741_UPDATERL, WM8741_UPDATERL); + snd_soc_update_bits(wm8741_codec, WM8741_DACRMSB_ATTENUATION, + WM8741_UPDATERM, WM8741_UPDATERM); + + return 0; +} + +static void digidac1_soundcard_shutdown(struct snd_pcm_substream *substream) +{ + /* turn off wm8804 digital output */ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + + snd_soc_update_bits(codec, WM8804_PWRDN, 0x3c, 0x3c); +} + +static int digidac1_soundcard_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_soc_codec *codec = rtd->codec; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_card *card = rtd->card; + struct snd_soc_pcm_runtime *wm8741_rtd; + struct snd_soc_codec *wm8741_codec; + + int sysclk = 27000000; + long mclk_freq = 0; + int mclk_div = 1; + int sampling_freq = 1; + int ret; + + wm8741_rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name); + if (!wm8741_rtd) { + dev_warn(card->dev, "digidac1_soundcard_hw_params: couldn't get WM8741 rtd\n"); + return -EFAULT; + } + wm8741_codec = wm8741_rtd->codec; + samplerate = params_rate(params); + + if (samplerate <= 96000) { + mclk_freq = samplerate*256; + mclk_div = WM8804_MCLKDIV_256FS; + } else { + mclk_freq = samplerate*128; + mclk_div = WM8804_MCLKDIV_128FS; + } + + switch (samplerate) { + case 32000: + sampling_freq = 0x03; + break; + case 44100: + sampling_freq = 0x00; + break; + case 48000: + sampling_freq = 0x02; + break; + case 88200: + sampling_freq = 0x08; + break; + case 96000: + sampling_freq = 0x0a; + break; + case 176400: + sampling_freq = 0x0c; + break; + case 192000: + sampling_freq = 0x0e; + break; + default: + dev_err(codec->dev, + "Failed to set WM8804 SYSCLK, unsupported samplerate %d\n", + samplerate); + } + + snd_soc_dai_set_clkdiv(codec_dai, WM8804_MCLK_DIV, mclk_div); + snd_soc_dai_set_pll(codec_dai, 0, 0, sysclk, mclk_freq); + + ret = snd_soc_dai_set_sysclk(codec_dai, WM8804_TX_CLKSRC_PLL, + sysclk, SND_SOC_CLOCK_OUT); + if (ret < 0) { + dev_err(codec->dev, + "Failed to set WM8804 SYSCLK: %d\n", ret); + return ret; + } + /* Enable wm8804 TX output */ + snd_soc_update_bits(codec, WM8804_PWRDN, 0x4, 0x0); + + /* wm8804 Power on */ + snd_soc_update_bits(codec, WM8804_PWRDN, 0x9, 0); + + /* wm8804 set sampling frequency status bits */ + snd_soc_update_bits(codec, WM8804_SPDTX4, 0x0f, sampling_freq); + + /* Now update wm8741 registers for the correct oversampling */ + if (samplerate <= 48000) + snd_soc_update_bits(wm8741_codec, WM8741_MODE_CONTROL_1, + WM8741_OSR_MASK, 0x00); + else if (samplerate <= 96000) + snd_soc_update_bits(wm8741_codec, WM8741_MODE_CONTROL_1, + WM8741_OSR_MASK, 0x20); + else + snd_soc_update_bits(wm8741_codec, WM8741_MODE_CONTROL_1, + WM8741_OSR_MASK, 0x40); + + /* wm8741 bit size */ + switch (params_width(params)) { + case 16: + snd_soc_update_bits(wm8741_codec, WM8741_FORMAT_CONTROL, + WM8741_IWL_MASK, 0x00); + break; + case 20: + snd_soc_update_bits(wm8741_codec, WM8741_FORMAT_CONTROL, + WM8741_IWL_MASK, 0x01); + break; + case 24: + snd_soc_update_bits(wm8741_codec, WM8741_FORMAT_CONTROL, + WM8741_IWL_MASK, 0x02); + break; + case 32: + snd_soc_update_bits(wm8741_codec, WM8741_FORMAT_CONTROL, + WM8741_IWL_MASK, 0x03); + break; + default: + dev_dbg(codec->dev, "wm8741_hw_params: Unsupported bit size param = %d", + params_width(params)); + return -EINVAL; + } + + return snd_soc_dai_set_bclk_ratio(cpu_dai, 64); +} +/* machine stream operations */ +static struct snd_soc_ops digidac1_soundcard_ops = { + .hw_params = digidac1_soundcard_hw_params, + .startup = digidac1_soundcard_startup, + .shutdown = digidac1_soundcard_shutdown, +}; + +static struct snd_soc_dai_link digidac1_soundcard_dai[] = { + { + .name = "RRA DigiDAC1", + .stream_name = "RRA DigiDAC1 HiFi", + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "wm8804-spdif", + .platform_name = "bcm2708-i2s.0", + .codec_name = "wm8804.1-003b", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, + .ops = &digidac1_soundcard_ops, + .init = digidac1_soundcard_init, + }, + { + .name = "RRA DigiDAC11", + .stream_name = "RRA DigiDAC11 HiFi", + .cpu_dai_name = "wm8804-spdif", + .codec_dai_name = "wm8741", + .codec_name = "wm8741.1-001a", + .dai_fmt = SND_SOC_DAIFMT_I2S + | SND_SOC_DAIFMT_NB_NF + | SND_SOC_DAIFMT_CBS_CFS, + }, +}; + +/* audio machine driver */ +static struct snd_soc_card digidac1_soundcard = { + .name = "digidac1-soundcard", + .owner = THIS_MODULE, + .dai_link = digidac1_soundcard_dai, + .num_links = ARRAY_SIZE(digidac1_soundcard_dai), +}; + +static int digidac1_soundcard_probe(struct platform_device *pdev) +{ + int ret = 0; + + digidac1_soundcard.dev = &pdev->dev; + + if (pdev->dev.of_node) { + struct device_node *i2s_node; + struct snd_soc_dai_link *dai = &digidac1_soundcard_dai[0]; + + i2s_node = of_parse_phandle(pdev->dev.of_node, + "i2s-controller", 0); + + if (i2s_node) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + } + } + + ret = snd_soc_register_card(&digidac1_soundcard); + if (ret && ret != -EPROBE_DEFER) + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", + ret); + + return ret; +} + +static int digidac1_soundcard_remove(struct platform_device *pdev) +{ + return snd_soc_unregister_card(&digidac1_soundcard); +} + +static const struct of_device_id digidac1_soundcard_of_match[] = { + { .compatible = "rra,digidac1-soundcard", }, + {}, +}; +MODULE_DEVICE_TABLE(of, digidac1_soundcard_of_match); + +static struct platform_driver digidac1_soundcard_driver = { + .driver = { + .name = "digidac1-audio", + .owner = THIS_MODULE, + .of_match_table = digidac1_soundcard_of_match, + }, + .probe = digidac1_soundcard_probe, + .remove = digidac1_soundcard_remove, +}; + +module_platform_driver(digidac1_soundcard_driver); + +MODULE_AUTHOR("José M. Tasende "); +MODULE_DESCRIPTION("ASoC Driver for RRA DigiDAC1"); +MODULE_LICENSE("GPL v2"); From 70c86519d56cecf0d2a737618d38473cbb3e244c Mon Sep 17 00:00:00 2001 From: DigitalDreamtime Date: Sat, 2 Jul 2016 16:26:19 +0100 Subject: [PATCH 081/165] Add support for Dion Audio LOCO DAC-AMP HAT Using dedicated machine driver and pcm5102a codec driver. Signed-off-by: DigitalDreamtime --- sound/soc/bcm/Kconfig | 7 +++ sound/soc/bcm/Makefile | 3 +- sound/soc/bcm/dionaudio_loco.c | 121 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 130 insertions(+), 1 deletion(-) create mode 100644 sound/soc/bcm/dionaudio_loco.c diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index c09de7aac7b448ad3af1b50f25ec56f682f872b7..aac9120b0865ce63b6c851dbe3917f5548b9a539 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -117,3 +117,10 @@ config SND_DIGIDAC1_SOUNDCARD select SND_SOC_WM8741 help Say Y or M if you want to add support for Red Rocks Audio DigiDAC1 board. + +config SND_BCM2708_SOC_DIONAUDIO_LOCO + tristate "Support for Dion Audio LOCO DAC-AMP" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_PCM5102a + help + Say Y or M if you want to add support for Dion Audio LOCO. diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index 855f4dbe574fcb725b0309710611fa381e1e29d6..fca9d682bbd2e7821ae01aefc7a5a94e0880a41e 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -23,6 +23,7 @@ snd-soc-iqaudio-digi-objs := iqaudio_digi.o snd-soc-raspidac3-objs := raspidac3.o snd-soc-audioinjector-pi-soundcard-objs := audioinjector-pi-soundcard.o snd-soc-digidac1-soundcard-objs := digidac1-soundcard.o +snd-soc-dionaudio-loco-objs := dionaudio_loco.o obj-$(CONFIG_SND_BCM2708_SOC_ADAU1977_ADC) += snd-soc-adau1977-adc.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) += snd-soc-hifiberry-amp.o @@ -38,4 +39,4 @@ obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DIGI) += snd-soc-iqaudio-digi.o obj-$(CONFIG_SND_BCM2708_SOC_RASPIDAC3) += snd-soc-raspidac3.o obj-$(CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD) += snd-soc-audioinjector-pi-soundcard.o obj-$(CONFIG_SND_DIGIDAC1_SOUNDCARD) += snd-soc-digidac1-soundcard.o - +obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO) += snd-soc-dionaudio-loco.o diff --git a/sound/soc/bcm/dionaudio_loco.c b/sound/soc/bcm/dionaudio_loco.c new file mode 100644 index 0000000000000000000000000000000000000000..65e03741d349a2dc5bd91f69855ea952d9cf87a2 --- /dev/null +++ b/sound/soc/bcm/dionaudio_loco.c @@ -0,0 +1,121 @@ +/* + * ASoC Driver for Dion Audio LOCO DAC-AMP + * + * Author: Miquel Blauw + * Copyright 2016 + * + * Based on the software of the RPi-DAC writen by Florian Meier + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include + +#include +#include +#include +#include +#include + +static int snd_rpi_dionaudio_loco_hw_params( + struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + + unsigned int sample_bits = + snd_pcm_format_physical_width(params_format(params)); + + return snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2); +} + +/* machine stream operations */ +static struct snd_soc_ops snd_rpi_dionaudio_loco_ops = { + .hw_params = snd_rpi_dionaudio_loco_hw_params, +}; + +static struct snd_soc_dai_link snd_rpi_dionaudio_loco_dai[] = { +{ + .name = "DionAudio LOCO", + .stream_name = "DionAudio LOCO DAC-AMP", + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "pcm5102a-hifi", + .platform_name = "bcm2708-i2s.0", + .codec_name = "pcm5102a-codec", + .dai_fmt = SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + .ops = &snd_rpi_dionaudio_loco_ops, +}, +}; + +/* audio machine driver */ +static struct snd_soc_card snd_rpi_dionaudio_loco = { + .name = "snd_rpi_dionaudio_loco", + .dai_link = snd_rpi_dionaudio_loco_dai, + .num_links = ARRAY_SIZE(snd_rpi_dionaudio_loco_dai), +}; + +static int snd_rpi_dionaudio_loco_probe(struct platform_device *pdev) +{ + struct device_node *np; + int ret = 0; + + snd_rpi_dionaudio_loco.dev = &pdev->dev; + + np = pdev->dev.of_node; + if (np) { + struct snd_soc_dai_link *dai = &snd_rpi_dionaudio_loco_dai[0]; + struct device_node *i2s_np; + + i2s_np = of_parse_phandle(np, "i2s-controller", 0); + if (i2s_np) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_np; + dai->platform_name = NULL; + dai->platform_of_node = i2s_np; + } + } + + ret = snd_soc_register_card(&snd_rpi_dionaudio_loco); + if (ret && ret != -EPROBE_DEFER) + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", + ret); + + return ret; +} + +static int snd_rpi_dionaudio_loco_remove(struct platform_device *pdev) +{ + return snd_soc_unregister_card(&snd_rpi_dionaudio_loco); +} + +static const struct of_device_id snd_rpi_dionaudio_loco_of_match[] = { + { .compatible = "dionaudio,loco-pcm5242-tpa3118", }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, snd_rpi_dionaudio_loco_of_match); + +static struct platform_driver snd_rpi_dionaudio_loco_driver = { + .driver = { + .name = "snd-dionaudio-loco", + .owner = THIS_MODULE, + .of_match_table = snd_rpi_dionaudio_loco_of_match, + }, + .probe = snd_rpi_dionaudio_loco_probe, + .remove = snd_rpi_dionaudio_loco_remove, +}; + +module_platform_driver(snd_rpi_dionaudio_loco_driver); + +MODULE_AUTHOR("Miquel Blauw "); +MODULE_DESCRIPTION("ASoC Driver for DionAudio LOCO"); +MODULE_LICENSE("GPL v2"); From e1693ecb2428bbfed103e59500c4b4025e4c7812 Mon Sep 17 00:00:00 2001 From: Clive Messer Date: Mon, 19 Sep 2016 14:01:04 +0100 Subject: [PATCH 082/165] Allo Piano DAC boards: Initial 2 channel (stereo) support (#1645) Add initial 2 channel (stereo) support for Allo Piano DAC (2.0/2.1) boards, using allo-piano-dac-pcm512x-audio overlay and allo-piano-dac ALSA ASoC machine driver. NB. The initial support is 2 channel (stereo) ONLY! (The Piano DAC 2.1 will only support 2 channel (stereo) left/right output, pending an update to the upstream pcm512x codec driver, which will have to be submitted via upstream. With the initial downstream support, provided by this patch, the Piano DAC 2.1 subwoofer outputs will not function.) Signed-off-by: Baswaraj K Signed-off-by: Clive Messer Tested-by: Clive Messer --- sound/soc/bcm/Kconfig | 7 ++ sound/soc/bcm/Makefile | 2 + sound/soc/bcm/allo-piano-dac.c | 144 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 153 insertions(+) create mode 100644 sound/soc/bcm/allo-piano-dac.c diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index aac9120b0865ce63b6c851dbe3917f5548b9a539..b600cfb98ac9baa21b3c6f09eff05149f14fda0a 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -124,3 +124,10 @@ config SND_BCM2708_SOC_DIONAUDIO_LOCO select SND_SOC_PCM5102a help Say Y or M if you want to add support for Dion Audio LOCO. + +config SND_BCM2708_SOC_ALLO_PIANO_DAC + tristate "Support for Allo Piano DAC" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_PCM512x_I2C + help + Say Y or M if you want to add support for Allo Piano DAC. diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index fca9d682bbd2e7821ae01aefc7a5a94e0880a41e..64f007f8ba38276a42e0bd8db92544db9412544b 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -24,6 +24,7 @@ snd-soc-raspidac3-objs := raspidac3.o snd-soc-audioinjector-pi-soundcard-objs := audioinjector-pi-soundcard.o snd-soc-digidac1-soundcard-objs := digidac1-soundcard.o snd-soc-dionaudio-loco-objs := dionaudio_loco.o +snd-soc-allo-piano-dac-objs := allo-piano-dac.o obj-$(CONFIG_SND_BCM2708_SOC_ADAU1977_ADC) += snd-soc-adau1977-adc.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) += snd-soc-hifiberry-amp.o @@ -40,3 +41,4 @@ obj-$(CONFIG_SND_BCM2708_SOC_RASPIDAC3) += snd-soc-raspidac3.o obj-$(CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD) += snd-soc-audioinjector-pi-soundcard.o obj-$(CONFIG_SND_DIGIDAC1_SOUNDCARD) += snd-soc-digidac1-soundcard.o obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO) += snd-soc-dionaudio-loco.o +obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC) += snd-soc-allo-piano-dac.o diff --git a/sound/soc/bcm/allo-piano-dac.c b/sound/soc/bcm/allo-piano-dac.c new file mode 100644 index 0000000000000000000000000000000000000000..eaf50fb6dbca1970ae1c6f8662088b0f1573fecb --- /dev/null +++ b/sound/soc/bcm/allo-piano-dac.c @@ -0,0 +1,144 @@ +/* + * ALSA ASoC Machine Driver for Allo Piano DAC + * + * Author: Baswaraj K + * Copyright 2016 + * based on code by Daniel Matuschek + * based on code by Florian Meier + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include + +#include +#include +#include +#include + +static bool digital_gain_0db_limit = true; + +static int snd_allo_piano_dac_init(struct snd_soc_pcm_runtime *rtd) +{ + if (digital_gain_0db_limit) { + int ret; + struct snd_soc_card *card = rtd->card; + + ret = snd_soc_limit_volume(card, "Digital Playback Volume", + 207); + if (ret < 0) + dev_warn(card->dev, "Failed to set volume limit: %d\n", + ret); + } + + return 0; +} + +static int snd_allo_piano_dac_hw_params( + struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + + unsigned int sample_bits = + snd_pcm_format_physical_width(params_format(params)); + + return snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2); +} + +/* machine stream operations */ +static struct snd_soc_ops snd_allo_piano_dac_ops = { + .hw_params = snd_allo_piano_dac_hw_params, +}; + +static struct snd_soc_dai_link snd_allo_piano_dac_dai[] = { +{ + .name = "Piano DAC", + .stream_name = "Piano DAC HiFi", + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "pcm512x-hifi", + .platform_name = "bcm2708-i2s.0", + .codec_name = "pcm512x.1-004c", + .dai_fmt = SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + .ops = &snd_allo_piano_dac_ops, + .init = snd_allo_piano_dac_init, +}, +}; + +/* audio machine driver */ +static struct snd_soc_card snd_allo_piano_dac = { + .name = "PianoDAC", + .owner = THIS_MODULE, + .dai_link = snd_allo_piano_dac_dai, + .num_links = ARRAY_SIZE(snd_allo_piano_dac_dai), +}; + +static int snd_allo_piano_dac_probe(struct platform_device *pdev) +{ + int ret = 0; + + snd_allo_piano_dac.dev = &pdev->dev; + + if (pdev->dev.of_node) { + struct device_node *i2s_node; + struct snd_soc_dai_link *dai; + + dai = &snd_allo_piano_dac_dai[0]; + i2s_node = of_parse_phandle(pdev->dev.of_node, + "i2s-controller", 0); + + if (i2s_node) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + } + + digital_gain_0db_limit = !of_property_read_bool( + pdev->dev.of_node, "allo,24db_digital_gain"); + } + + ret = snd_soc_register_card(&snd_allo_piano_dac); + if (ret && ret != -EPROBE_DEFER) + dev_err(&pdev->dev, + "snd_soc_register_card() failed: %d\n", ret); + + return ret; +} + +static int snd_allo_piano_dac_remove(struct platform_device *pdev) +{ + return snd_soc_unregister_card(&snd_allo_piano_dac); +} + +static const struct of_device_id snd_allo_piano_dac_of_match[] = { + { .compatible = "allo,piano-dac", }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, snd_allo_piano_dac_of_match); + +static struct platform_driver snd_allo_piano_dac_driver = { + .driver = { + .name = "snd-allo-piano-dac", + .owner = THIS_MODULE, + .of_match_table = snd_allo_piano_dac_of_match, + }, + .probe = snd_allo_piano_dac_probe, + .remove = snd_allo_piano_dac_remove, +}; + +module_platform_driver(snd_allo_piano_dac_driver); + +MODULE_AUTHOR("Baswaraj K "); +MODULE_DESCRIPTION("ALSA ASoC Machine Driver for Allo Piano DAC"); +MODULE_LICENSE("GPL v2"); From b995663e0332cb0daa1463dba5f64619ae94ffcb Mon Sep 17 00:00:00 2001 From: gtrainavicius Date: Sun, 23 Oct 2016 12:06:53 +0300 Subject: [PATCH 083/165] Support for Blokas Labs pisound board Pisound dynamic overlay (#1760) Restructuring pisound-overlay.dts, so it can be loaded and unloaded dynamically using dtoverlay. Print a logline when the kernel module is removed. pisound improvements: * Added a writable sysfs object to enable scripts / user space software to blink MIDI activity LEDs for variable duration. * Improved hw_param constraints setting. * Added compatibility with S16_LE sample format. * Exposed some simple placeholder volume controls, so the card appears in volumealsa widget. Signed-off-by: Giedrius Trainavicius --- .../devicetree/bindings/vendor-prefixes.txt | 1 + sound/soc/bcm/Kconfig | 6 + sound/soc/bcm/Makefile | 2 + sound/soc/bcm/pisound.c | 1123 ++++++++++++++++++++ 4 files changed, 1132 insertions(+) create mode 100644 sound/soc/bcm/pisound.c diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index ec0bfb9bbebd42c828a3b4978db070924275f609..6b6b0b13c361b9cd0df0a9aea86366bd92c520cf 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -44,6 +44,7 @@ avia avia semiconductor avic Shanghai AVIC Optoelectronics Co., Ltd. axentia Axentia Technologies AB axis Axis Communications AB +blokaslabs Vilniaus Blokas UAB boe BOE Technology Group Co., Ltd. bosch Bosch Sensortec GmbH boundary Boundary Devices Inc. diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index b600cfb98ac9baa21b3c6f09eff05149f14fda0a..ff4284a0000fd8dc58deb9e50be1422fd7ad6e65 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -131,3 +131,9 @@ config SND_BCM2708_SOC_ALLO_PIANO_DAC select SND_SOC_PCM512x_I2C help Say Y or M if you want to add support for Allo Piano DAC. + +config SND_PISOUND + tristate "Support for Blokas Labs pisound" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + help + Say Y or M if you want to add support for Blokas Labs pisound. diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index 64f007f8ba38276a42e0bd8db92544db9412544b..bb1df438540193652ec5464e8bc51f636a1b844e 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -25,6 +25,7 @@ snd-soc-audioinjector-pi-soundcard-objs := audioinjector-pi-soundcard.o snd-soc-digidac1-soundcard-objs := digidac1-soundcard.o snd-soc-dionaudio-loco-objs := dionaudio_loco.o snd-soc-allo-piano-dac-objs := allo-piano-dac.o +snd-soc-pisound-objs := pisound.o obj-$(CONFIG_SND_BCM2708_SOC_ADAU1977_ADC) += snd-soc-adau1977-adc.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) += snd-soc-hifiberry-amp.o @@ -42,3 +43,4 @@ obj-$(CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD) += snd-soc-audioinjector-pi-soundca obj-$(CONFIG_SND_DIGIDAC1_SOUNDCARD) += snd-soc-digidac1-soundcard.o obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO) += snd-soc-dionaudio-loco.o obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC) += snd-soc-allo-piano-dac.o +obj-$(CONFIG_SND_PISOUND) += snd-soc-pisound.o diff --git a/sound/soc/bcm/pisound.c b/sound/soc/bcm/pisound.c new file mode 100644 index 0000000000000000000000000000000000000000..06ff1e53dc9d860946965b6303577762f958fae2 --- /dev/null +++ b/sound/soc/bcm/pisound.c @@ -0,0 +1,1123 @@ +/* + * pisound Linux kernel module. + * Copyright (C) 2016 Vilniaus Blokas UAB, http://blokas.io/pisound + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; version 2 of the + * License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301, USA. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +static int pisnd_spi_init(struct device *dev); +static void pisnd_spi_uninit(void); + +static void pisnd_spi_send(uint8_t val); +static uint8_t pisnd_spi_recv(uint8_t *buffer, uint8_t length); + +typedef void (*pisnd_spi_recv_cb)(void *data); +static void pisnd_spi_set_callback(pisnd_spi_recv_cb cb, void *data); + +static const char *pisnd_spi_get_serial(void); +static const char *pisnd_spi_get_id(void); +static const char *pisnd_spi_get_version(void); + +static int pisnd_midi_init(struct snd_card *card); +static void pisnd_midi_uninit(void); + +#define PISOUND_LOG_PREFIX "pisound: " + +#ifdef DEBUG +# define printd(...) pr_alert(PISOUND_LOG_PREFIX __VA_ARGS__) +#else +# define printd(...) do {} while (0) +#endif + +#define printe(...) pr_err(PISOUND_LOG_PREFIX __VA_ARGS__) +#define printi(...) pr_info(PISOUND_LOG_PREFIX __VA_ARGS__) + +static int pisnd_output_open(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static int pisnd_output_close(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static void pisnd_output_trigger( + struct snd_rawmidi_substream *substream, + int up + ) +{ + uint8_t data; + + if (!up) + return; + + while (snd_rawmidi_transmit_peek(substream, &data, 1)) { + pisnd_spi_send(data); + snd_rawmidi_transmit_ack(substream, 1); + } +} + +static void pisnd_output_drain(struct snd_rawmidi_substream *substream) +{ + uint8_t data; + + while (snd_rawmidi_transmit_peek(substream, &data, 1)) { + pisnd_spi_send(data); + + snd_rawmidi_transmit_ack(substream, 1); + } +} + +static int pisnd_input_open(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static int pisnd_input_close(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static void pisnd_midi_recv_callback(void *substream) +{ + uint8_t data[128]; + uint8_t n = 0; + + while ((n = pisnd_spi_recv(data, sizeof(data)))) { + int res = snd_rawmidi_receive(substream, data, n); + (void)res; + printd("midi recv 0x%02x, res = %d\n", data, res); + } +} + +static void pisnd_input_trigger(struct snd_rawmidi_substream *substream, int up) +{ + if (up) { + pisnd_spi_set_callback(pisnd_midi_recv_callback, substream); + pisnd_midi_recv_callback(substream); + } else { + pisnd_spi_set_callback(NULL, NULL); + } +} + +static struct snd_rawmidi *g_rmidi; + +static struct snd_rawmidi_ops pisnd_output_ops = { + .open = pisnd_output_open, + .close = pisnd_output_close, + .trigger = pisnd_output_trigger, + .drain = pisnd_output_drain, +}; + +static struct snd_rawmidi_ops pisnd_input_ops = { + .open = pisnd_input_open, + .close = pisnd_input_close, + .trigger = pisnd_input_trigger, +}; + +static void pisnd_get_port_info( + struct snd_rawmidi *rmidi, + int number, + struct snd_seq_port_info *seq_port_info + ) +{ + seq_port_info->type = + SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | + SNDRV_SEQ_PORT_TYPE_HARDWARE | + SNDRV_SEQ_PORT_TYPE_PORT; + seq_port_info->midi_voices = 0; +} + +static struct snd_rawmidi_global_ops pisnd_global_ops = { + .get_port_info = pisnd_get_port_info, +}; + +static int pisnd_midi_init(struct snd_card *card) +{ + int err = snd_rawmidi_new(card, "pisound MIDI", 0, 1, 1, &g_rmidi); + + if (err < 0) { + printe("snd_rawmidi_new failed: %d\n", err); + return err; + } + + strcpy(g_rmidi->name, "pisound MIDI "); + strcat(g_rmidi->name, pisnd_spi_get_serial()); + + g_rmidi->info_flags = + SNDRV_RAWMIDI_INFO_OUTPUT | + SNDRV_RAWMIDI_INFO_INPUT | + SNDRV_RAWMIDI_INFO_DUPLEX; + + g_rmidi->ops = &pisnd_global_ops; + + g_rmidi->private_data = (void *)0; + + snd_rawmidi_set_ops( + g_rmidi, + SNDRV_RAWMIDI_STREAM_OUTPUT, + &pisnd_output_ops + ); + + snd_rawmidi_set_ops( + g_rmidi, + SNDRV_RAWMIDI_STREAM_INPUT, + &pisnd_input_ops + ); + + return 0; +} + +static void pisnd_midi_uninit(void) +{ +} + +static void *g_recvData; +static pisnd_spi_recv_cb g_recvCallback; + +#define FIFO_SIZE 512 + +static char g_serial_num[11]; +static char g_id[25]; +static char g_version[5]; + +static uint8_t g_ledFlashDuration; +static bool g_ledFlashDurationChanged; + +DEFINE_KFIFO(spi_fifo_in, uint8_t, FIFO_SIZE); +DEFINE_KFIFO(spi_fifo_out, uint8_t, FIFO_SIZE); + +static struct gpio_desc *data_available; +static struct gpio_desc *spi_reset; + +static struct spi_device *pisnd_spi_device; + +static struct workqueue_struct *pisnd_workqueue; +static struct work_struct pisnd_work_process; + +static void pisnd_work_handler(struct work_struct *work); + +static uint16_t spi_transfer16(uint16_t val); + +static int pisnd_init_workqueues(void) +{ + pisnd_workqueue = create_singlethread_workqueue("pisnd_workqueue"); + INIT_WORK(&pisnd_work_process, pisnd_work_handler); + + return 0; +} + +static void pisnd_uninit_workqueues(void) +{ + flush_workqueue(pisnd_workqueue); + destroy_workqueue(pisnd_workqueue); + + pisnd_workqueue = NULL; +} + +static bool pisnd_spi_has_more(void) +{ + return gpiod_get_value(data_available); +} + +enum task_e { + TASK_PROCESS = 0, +}; + +static void pisnd_schedule_process(enum task_e task) +{ + if (pisnd_spi_device != NULL && + pisnd_workqueue != NULL && + !work_pending(&pisnd_work_process) + ) { + printd("schedule: has more = %d\n", pisnd_spi_has_more()); + if (task == TASK_PROCESS) + queue_work(pisnd_workqueue, &pisnd_work_process); + } +} + +static irqreturn_t data_available_interrupt_handler(int irq, void *dev_id) +{ + if (irq == gpiod_to_irq(data_available) && pisnd_spi_has_more()) { + printd("schedule from irq\n"); + pisnd_schedule_process(TASK_PROCESS); + } + + return IRQ_HANDLED; +} + +static DEFINE_SPINLOCK(spilock); +static unsigned long spilockflags; + +static uint16_t spi_transfer16(uint16_t val) +{ + int err; + struct spi_transfer transfer; + struct spi_message msg; + uint8_t txbuf[2]; + uint8_t rxbuf[2]; + + if (!pisnd_spi_device) { + printe("pisnd_spi_device null, returning\n"); + return 0; + } + + spi_message_init(&msg); + + memset(&transfer, 0, sizeof(transfer)); + memset(&rxbuf, 0, sizeof(rxbuf)); + + txbuf[0] = val >> 8; + txbuf[1] = val & 0xff; + + transfer.tx_buf = &txbuf; + transfer.rx_buf = &rxbuf; + transfer.len = sizeof(txbuf); + transfer.speed_hz = 125000; + transfer.delay_usecs = 100; + spi_message_add_tail(&transfer, &msg); + + spin_lock_irqsave(&spilock, spilockflags); + err = spi_sync(pisnd_spi_device, &msg); + spin_unlock_irqrestore(&spilock, spilockflags); + + if (err < 0) { + printe("spi_sync error %d\n", err); + return 0; + } + + printd("received: %02x%02x\n", rxbuf[0], rxbuf[1]); + printd("hasMore %d\n", pisnd_spi_has_more()); + + return (rxbuf[0] << 8) | rxbuf[1]; +} + +static int spi_read_bytes(char *dst, size_t length, uint8_t *bytesRead) +{ + uint16_t rx; + uint8_t size; + uint8_t i; + + memset(dst, 0, length); + *bytesRead = 0; + + rx = spi_transfer16(0); + if (!(rx >> 8)) + return -EINVAL; + + size = rx & 0xff; + + if (size > length) + return -EINVAL; + + for (i = 0; i < size; ++i) { + rx = spi_transfer16(0); + if (!(rx >> 8)) + return -EINVAL; + + dst[i] = rx & 0xff; + } + + *bytesRead = i; + + return 0; +} + +static int spi_device_match(struct device *dev, void *data) +{ + struct spi_device *spi = container_of(dev, struct spi_device, dev); + + printd(" %s %s %dkHz %d bits mode=0x%02X\n", + spi->modalias, dev_name(dev), spi->max_speed_hz/1000, + spi->bits_per_word, spi->mode); + + if (strcmp("pisound-spi", spi->modalias) == 0) { + printi("\tFound!\n"); + return 1; + } + + printe("\tNot found!\n"); + return 0; +} + +static struct spi_device *pisnd_spi_find_device(void) +{ + struct device *dev; + + printi("Searching for spi device...\n"); + dev = bus_find_device(&spi_bus_type, NULL, NULL, spi_device_match); + if (dev != NULL) + return container_of(dev, struct spi_device, dev); + else + return NULL; +} + +static void pisnd_work_handler(struct work_struct *work) +{ + uint16_t rx; + uint16_t tx; + uint8_t val; + + if (work == &pisnd_work_process) { + if (pisnd_spi_device == NULL) + return; + + do { + val = 0; + tx = 0; + + if (g_ledFlashDurationChanged) { + tx = 0xf000 | g_ledFlashDuration; + g_ledFlashDuration = 0; + g_ledFlashDurationChanged = false; + } else if (kfifo_get(&spi_fifo_out, &val)) { + tx = 0x0f00 | val; + } + + rx = spi_transfer16(tx); + + if (rx & 0xff00) { + kfifo_put(&spi_fifo_in, rx & 0xff); + if (kfifo_len(&spi_fifo_in) > 16 + && g_recvCallback) + g_recvCallback(g_recvData); + } + } while (rx != 0 + || !kfifo_is_empty(&spi_fifo_out) + || pisnd_spi_has_more() + || g_ledFlashDurationChanged + ); + + if (!kfifo_is_empty(&spi_fifo_in) && g_recvCallback) + g_recvCallback(g_recvData); + } +} + +static int pisnd_spi_gpio_init(struct device *dev) +{ + spi_reset = gpiod_get_index(dev, "reset", 1, GPIOD_ASIS); + data_available = gpiod_get_index(dev, "data_available", 0, GPIOD_ASIS); + + gpiod_direction_output(spi_reset, 1); + gpiod_direction_input(data_available); + + /* Reset the slave. */ + gpiod_set_value(spi_reset, false); + mdelay(1); + gpiod_set_value(spi_reset, true); + + /* Give time for spi slave to start. */ + mdelay(64); + + return 0; +} + +static void pisnd_spi_gpio_uninit(void) +{ + gpiod_set_value(spi_reset, false); + gpiod_put(spi_reset); + spi_reset = NULL; + + gpiod_put(data_available); + data_available = NULL; +} + +static int pisnd_spi_gpio_irq_init(struct device *dev) +{ + return request_irq( + gpiod_to_irq(data_available), + data_available_interrupt_handler, + IRQF_TIMER | IRQF_TRIGGER_RISING, + "data_available_int", + NULL + ); +} + +static void pisnd_spi_gpio_irq_uninit(void) +{ + free_irq(gpiod_to_irq(data_available), NULL); +} + +static int spi_read_info(void) +{ + uint16_t tmp; + uint8_t count; + uint8_t n; + uint8_t i; + uint8_t j; + char buffer[257]; + int ret; + char *p; + + memset(g_serial_num, 0, sizeof(g_serial_num)); + memset(g_version, 0, sizeof(g_version)); + memset(g_id, 0, sizeof(g_id)); + + tmp = spi_transfer16(0); + + if (!(tmp >> 8)) + return -EINVAL; + + count = tmp & 0xff; + + for (i = 0; i < count; ++i) { + memset(buffer, 0, sizeof(buffer)); + ret = spi_read_bytes(buffer, sizeof(buffer)-1, &n); + + if (ret < 0) + return ret; + + switch (i) { + case 0: + if (n != 2) + return -EINVAL; + + snprintf( + g_version, + sizeof(g_version), + "%x.%02x", + buffer[0], + buffer[1] + ); + break; + case 1: + if (n >= sizeof(g_serial_num)) + return -EINVAL; + + memcpy(g_serial_num, buffer, sizeof(g_serial_num)); + break; + case 2: + { + if (n >= sizeof(g_id)) + return -EINVAL; + + p = g_id; + for (j = 0; j < n; ++j) + p += sprintf(p, "%02x", buffer[j]); + } + break; + default: + break; + } + } + + return 0; +} + +static int pisnd_spi_init(struct device *dev) +{ + int ret; + struct spi_device *spi; + + memset(g_serial_num, 0, sizeof(g_serial_num)); + memset(g_id, 0, sizeof(g_id)); + memset(g_version, 0, sizeof(g_version)); + + spi = pisnd_spi_find_device(); + + if (spi != NULL) { + printd("initializing spi!\n"); + pisnd_spi_device = spi; + ret = spi_setup(pisnd_spi_device); + } else { + printe("SPI device not found, deferring!\n"); + return -EPROBE_DEFER; + } + + ret = pisnd_spi_gpio_init(dev); + + if (ret < 0) { + printe("SPI GPIO init failed: %d\n", ret); + spi_dev_put(pisnd_spi_device); + pisnd_spi_device = NULL; + pisnd_spi_gpio_uninit(); + return ret; + } + + ret = spi_read_info(); + + if (ret < 0) { + printe("Reading card info failed: %d\n", ret); + spi_dev_put(pisnd_spi_device); + pisnd_spi_device = NULL; + pisnd_spi_gpio_uninit(); + return ret; + } + + /* Flash the LEDs. */ + spi_transfer16(0xf008); + + ret = pisnd_spi_gpio_irq_init(dev); + if (ret < 0) { + printe("SPI irq request failed: %d\n", ret); + spi_dev_put(pisnd_spi_device); + pisnd_spi_device = NULL; + pisnd_spi_gpio_irq_uninit(); + pisnd_spi_gpio_uninit(); + } + + ret = pisnd_init_workqueues(); + if (ret != 0) { + printe("Workqueue initialization failed: %d\n", ret); + spi_dev_put(pisnd_spi_device); + pisnd_spi_device = NULL; + pisnd_spi_gpio_irq_uninit(); + pisnd_spi_gpio_uninit(); + pisnd_uninit_workqueues(); + return ret; + } + + if (pisnd_spi_has_more()) { + printd("data is available, scheduling from init\n"); + pisnd_schedule_process(TASK_PROCESS); + } + + return 0; +} + +static void pisnd_spi_uninit(void) +{ + pisnd_uninit_workqueues(); + + spi_dev_put(pisnd_spi_device); + pisnd_spi_device = NULL; + + pisnd_spi_gpio_irq_uninit(); + pisnd_spi_gpio_uninit(); +} + +static void pisnd_spi_flash_leds(uint8_t duration) +{ + g_ledFlashDuration = duration; + g_ledFlashDurationChanged = true; + printd("schedule from spi_flash_leds\n"); + pisnd_schedule_process(TASK_PROCESS); +} + +static void pisnd_spi_send(uint8_t val) +{ + kfifo_put(&spi_fifo_out, val); + printd("schedule from spi_send\n"); + pisnd_schedule_process(TASK_PROCESS); +} + +static uint8_t pisnd_spi_recv(uint8_t *buffer, uint8_t length) +{ + return kfifo_out(&spi_fifo_in, buffer, length); +} + +static void pisnd_spi_set_callback(pisnd_spi_recv_cb cb, void *data) +{ + g_recvData = data; + g_recvCallback = cb; +} + +static const char *pisnd_spi_get_serial(void) +{ + if (strlen(g_serial_num)) + return g_serial_num; + + return ""; +} + +static const char *pisnd_spi_get_id(void) +{ + if (strlen(g_id)) + return g_id; + + return ""; +} + +static const char *pisnd_spi_get_version(void) +{ + if (strlen(g_version)) + return g_version; + + return ""; +} + +static const struct of_device_id pisound_of_match[] = { + { .compatible = "blokaslabs,pisound", }, + { .compatible = "blokaslabs,pisound-spi", }, + {}, +}; + +enum { + SWITCH = 0, + VOLUME = 1, +}; + +static int pisnd_ctl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + if (kcontrol->private_value == SWITCH) { + uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 1; + return 0; + } else if (kcontrol->private_value == VOLUME) { + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 100; + return 0; + } + return -EINVAL; +} + +static int pisnd_ctl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + if (kcontrol->private_value == SWITCH) { + ucontrol->value.integer.value[0] = 1; + return 0; + } else if (kcontrol->private_value == VOLUME) { + ucontrol->value.integer.value[0] = 100; + return 0; + } + + return -EINVAL; +} + +static struct snd_kcontrol_new pisnd_ctl[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "PCM Playback Switch", + .index = 0, + .private_value = SWITCH, + .access = SNDRV_CTL_ELEM_ACCESS_READ, + .info = pisnd_ctl_info, + .get = pisnd_ctl_get, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "PCM Playback Volume", + .index = 0, + .private_value = VOLUME, + .access = SNDRV_CTL_ELEM_ACCESS_READ, + .info = pisnd_ctl_info, + .get = pisnd_ctl_get, + }, +}; + +static int pisnd_ctl_init(struct snd_card *card) +{ + int err, i; + + for (i = 0; i < ARRAY_SIZE(pisnd_ctl); ++i) { + err = snd_ctl_add(card, snd_ctl_new1(&pisnd_ctl[i], NULL)); + if (err < 0) + return err; + } + + return 0; +} + +static int pisnd_ctl_uninit(void) +{ + return 0; +} + +static struct gpio_desc *osr0, *osr1, *osr2; +static struct gpio_desc *reset; +static struct gpio_desc *button; + +static int pisnd_hw_params( + struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params + ) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + + /* pisound runs on fixed 32 clock counts per channel, + * as generated by the master ADC. + */ + snd_soc_dai_set_bclk_ratio(cpu_dai, 32*2); + + printd("rate = %d\n", params_rate(params)); + printd("ch = %d\n", params_channels(params)); + printd("bits = %u\n", + snd_pcm_format_physical_width(params_format(params))); + printd("format = %d\n", params_format(params)); + + gpiod_set_value(reset, false); + + switch (params_rate(params)) { + case 48000: + gpiod_set_value(osr0, true); + gpiod_set_value(osr1, false); + gpiod_set_value(osr2, false); + break; + case 96000: + gpiod_set_value(osr0, true); + gpiod_set_value(osr1, true); + gpiod_set_value(osr2, false); + break; + case 192000: + gpiod_set_value(osr0, true); + gpiod_set_value(osr1, true); + gpiod_set_value(osr2, true); + break; + default: + printe("Unsupported rate %u!\n", params_rate(params)); + return -EINVAL; + } + + gpiod_set_value(reset, true); + + return 0; +} + +static unsigned int rates[3] = { + 48000, 96000, 192000 +}; + +static struct snd_pcm_hw_constraint_list constraints_rates = { + .count = ARRAY_SIZE(rates), + .list = rates, + .mask = 0, +}; + +static int pisnd_startup(struct snd_pcm_substream *substream) +{ + int err = snd_pcm_hw_constraint_list( + substream->runtime, + 0, + SNDRV_PCM_HW_PARAM_RATE, + &constraints_rates + ); + + if (err < 0) + return err; + + err = snd_pcm_hw_constraint_single( + substream->runtime, + SNDRV_PCM_HW_PARAM_CHANNELS, + 2 + ); + + if (err < 0) + return err; + + err = snd_pcm_hw_constraint_mask64( + substream->runtime, + SNDRV_PCM_HW_PARAM_FORMAT, + SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE + ); + + if (err < 0) + return err; + + return 0; +} + +static struct snd_soc_ops pisnd_ops = { + .startup = pisnd_startup, + .hw_params = pisnd_hw_params, +}; + +static struct snd_soc_dai_link pisnd_dai[] = { + { + .name = "pisound", + .stream_name = "pisound", + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "snd-soc-dummy-dai", + .platform_name = "bcm2708-i2s.0", + .codec_name = "snd-soc-dummy", + .dai_fmt = + SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, + .ops = &pisnd_ops, + }, +}; + +static int pisnd_card_probe(struct snd_soc_card *card) +{ + int err = pisnd_midi_init(card->snd_card); + + if (err < 0) { + printe("pisnd_midi_init failed: %d\n", err); + return err; + } + + err = pisnd_ctl_init(card->snd_card); + if (err < 0) { + printe("pisnd_ctl_init failed: %d\n", err); + return err; + } + + return 0; +} + +static int pisnd_card_remove(struct snd_soc_card *card) +{ + pisnd_ctl_uninit(); + pisnd_midi_uninit(); + return 0; +} + +static struct snd_soc_card pisnd_card = { + .name = "pisound", + .owner = THIS_MODULE, + .dai_link = pisnd_dai, + .num_links = ARRAY_SIZE(pisnd_dai), + .probe = pisnd_card_probe, + .remove = pisnd_card_remove, +}; + +static int pisnd_init_gpio(struct device *dev) +{ + osr0 = gpiod_get_index(dev, "osr", 0, GPIOD_ASIS); + osr1 = gpiod_get_index(dev, "osr", 1, GPIOD_ASIS); + osr2 = gpiod_get_index(dev, "osr", 2, GPIOD_ASIS); + + reset = gpiod_get_index(dev, "reset", 0, GPIOD_ASIS); + + button = gpiod_get_index(dev, "button", 0, GPIOD_ASIS); + + gpiod_direction_output(osr0, 1); + gpiod_direction_output(osr1, 1); + gpiod_direction_output(osr2, 1); + gpiod_direction_output(reset, 1); + + gpiod_set_value(reset, false); + gpiod_set_value(osr0, true); + gpiod_set_value(osr1, false); + gpiod_set_value(osr2, false); + gpiod_set_value(reset, true); + + gpiod_export(button, false); + + return 0; +} + +static int pisnd_uninit_gpio(void) +{ + int i; + + struct gpio_desc **gpios[] = { + &osr0, &osr1, &osr2, &reset, &button, + }; + + gpiod_unexport(button); + + for (i = 0; i < ARRAY_SIZE(gpios); ++i) { + if (*gpios[i] == NULL) { + printd("weird, GPIO[%d] is NULL already\n", i); + continue; + } + + gpiod_put(*gpios[i]); + *gpios[i] = NULL; + } + + return 0; +} + +static struct kobject *pisnd_kobj; + +static ssize_t pisnd_serial_show( + struct kobject *kobj, + struct kobj_attribute *attr, + char *buf + ) +{ + return sprintf(buf, "%s\n", pisnd_spi_get_serial()); +} + +static ssize_t pisnd_id_show( + struct kobject *kobj, + struct kobj_attribute *attr, + char *buf + ) +{ + return sprintf(buf, "%s\n", pisnd_spi_get_id()); +} + +static ssize_t pisnd_version_show( + struct kobject *kobj, + struct kobj_attribute *attr, + char *buf + ) +{ + return sprintf(buf, "%s\n", pisnd_spi_get_version()); +} + +static ssize_t pisnd_led_store( + struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, + size_t length + ) +{ + uint32_t timeout; + int err; + + err = kstrtou32(buf, 10, &timeout); + + if (err == 0 && timeout <= 255) + pisnd_spi_flash_leds(timeout); + + return length; +} + +static struct kobj_attribute pisnd_serial_attribute = + __ATTR(serial, 0444, pisnd_serial_show, NULL); +static struct kobj_attribute pisnd_id_attribute = + __ATTR(id, 0444, pisnd_id_show, NULL); +static struct kobj_attribute pisnd_version_attribute = + __ATTR(version, 0444, pisnd_version_show, NULL); +static struct kobj_attribute pisnd_led_attribute = + __ATTR(led, 0644, NULL, pisnd_led_store); + +static struct attribute *attrs[] = { + &pisnd_serial_attribute.attr, + &pisnd_id_attribute.attr, + &pisnd_version_attribute.attr, + &pisnd_led_attribute.attr, + NULL +}; + +static struct attribute_group attr_group = { .attrs = attrs }; + +static int pisnd_probe(struct platform_device *pdev) +{ + int ret = 0; + int i; + + ret = pisnd_spi_init(&pdev->dev); + if (ret < 0) { + printe("pisnd_spi_init failed: %d\n", ret); + return ret; + } + + printi("Detected pisound card:\n"); + printi("\tSerial: %s\n", pisnd_spi_get_serial()); + printi("\tVersion: %s\n", pisnd_spi_get_version()); + printi("\tId: %s\n", pisnd_spi_get_id()); + + pisnd_kobj = kobject_create_and_add("pisound", kernel_kobj); + if (!pisnd_kobj) { + pisnd_spi_uninit(); + return -ENOMEM; + } + + ret = sysfs_create_group(pisnd_kobj, &attr_group); + if (ret < 0) { + pisnd_spi_uninit(); + kobject_put(pisnd_kobj); + return -ENOMEM; + } + + pisnd_init_gpio(&pdev->dev); + pisnd_card.dev = &pdev->dev; + + if (pdev->dev.of_node) { + struct device_node *i2s_node; + + i2s_node = of_parse_phandle( + pdev->dev.of_node, + "i2s-controller", + 0 + ); + + for (i = 0; i < pisnd_card.num_links; ++i) { + struct snd_soc_dai_link *dai = &pisnd_dai[i]; + + if (i2s_node) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + dai->stream_name = pisnd_spi_get_serial(); + } + } + } + + ret = snd_soc_register_card(&pisnd_card); + + if (ret < 0) { + if (ret != -EPROBE_DEFER) + printe("snd_soc_register_card() failed: %d\n", ret); + pisnd_uninit_gpio(); + kobject_put(pisnd_kobj); + pisnd_spi_uninit(); + } + + return ret; +} + +static int pisnd_remove(struct platform_device *pdev) +{ + printi("Unloading.\n"); + + if (pisnd_kobj) { + kobject_put(pisnd_kobj); + pisnd_kobj = NULL; + } + + pisnd_spi_uninit(); + + /* Turn off */ + gpiod_set_value(reset, false); + pisnd_uninit_gpio(); + + return snd_soc_unregister_card(&pisnd_card); +} + +MODULE_DEVICE_TABLE(of, pisound_of_match); + +static struct platform_driver pisnd_driver = { + .driver = { + .name = "snd-rpi-pisound", + .owner = THIS_MODULE, + .of_match_table = pisound_of_match, + }, + .probe = pisnd_probe, + .remove = pisnd_remove, +}; + +module_platform_driver(pisnd_driver); + +MODULE_AUTHOR("Giedrius Trainavicius "); +MODULE_DESCRIPTION("ASoC Driver for pisound, http://blokas.io/pisound"); +MODULE_LICENSE("GPL v2"); From e77c3d78825e40c441047887d354f7525a19a611 Mon Sep 17 00:00:00 2001 From: Matthias Reichl Date: Sun, 22 Jan 2017 12:49:37 +0100 Subject: [PATCH 084/165] ASoC: Add driver for Cirrus Logic Audio Card Note: due to problems with deferred probing of regulators the following softdep should be added to a modprobe.d file softdep arizona-spi pre: arizona-ldo1 Signed-off-by: Matthias Reichl --- sound/soc/bcm/Kconfig | 9 + sound/soc/bcm/Makefile | 2 + sound/soc/bcm/rpi-cirrus.c | 1003 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 1014 insertions(+) create mode 100644 sound/soc/bcm/rpi-cirrus.c diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index ff4284a0000fd8dc58deb9e50be1422fd7ad6e65..c0489e591b9b8c8da004ca9e300e97f1a21e5ce1 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -46,6 +46,15 @@ config SND_BCM2708_SOC_HIFIBERRY_AMP help Say Y or M if you want to add support for the HifiBerry Amp amplifier board. +config SND_BCM2708_SOC_RPI_CIRRUS + tristate "Support for Cirrus Logic Audio Card" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_WM5102 + select SND_SOC_WM8804 + help + Say Y or M if you want to add support for the Wolfson and + Cirrus Logic audio cards. + config SND_BCM2708_SOC_RPI_DAC tristate "Support for RPi-DAC" depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index bb1df438540193652ec5464e8bc51f636a1b844e..84c2b20ce2e51b525797ee58de95734ee7847e15 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -16,6 +16,7 @@ snd-soc-hifiberry-dacplus-objs := hifiberry_dacplus.o snd-soc-hifiberry-digi-objs := hifiberry_digi.o snd-soc-justboom-dac-objs := justboom-dac.o snd-soc-justboom-digi-objs := justboom-digi.o +snd-soc-rpi-cirrus-objs := rpi-cirrus.o snd-soc-rpi-dac-objs := rpi-dac.o snd-soc-rpi-proto-objs := rpi-proto.o snd-soc-iqaudio-dac-objs := iqaudio-dac.o @@ -34,6 +35,7 @@ obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI) += snd-soc-hifiberry-digi.o obj-$(CONFIG_SND_BCM2708_SOC_JUSTBOOM_DAC) += snd-soc-justboom-dac.o obj-$(CONFIG_SND_BCM2708_SOC_JUSTBOOM_DIGI) += snd-soc-justboom-digi.o +obj-$(CONFIG_SND_BCM2708_SOC_RPI_CIRRUS) += snd-soc-rpi-cirrus.o obj-$(CONFIG_SND_BCM2708_SOC_RPI_DAC) += snd-soc-rpi-dac.o obj-$(CONFIG_SND_BCM2708_SOC_RPI_PROTO) += snd-soc-rpi-proto.o obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o diff --git a/sound/soc/bcm/rpi-cirrus.c b/sound/soc/bcm/rpi-cirrus.c new file mode 100644 index 0000000000000000000000000000000000000000..ac8651ddff7bd3701dffe22c7fb88352f912dff3 --- /dev/null +++ b/sound/soc/bcm/rpi-cirrus.c @@ -0,0 +1,1003 @@ +/* + * ASoC machine driver for Cirrus Logic Audio Card + * (with WM5102 and WM8804 codecs) + * + * Copyright 2015-2017 Matthias Reichl + * + * Based on rpi-cirrus-sound-pi driver (c) Wolfson / Cirrus Logic Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include + +#include + +#include "../codecs/wm5102.h" +#include "../codecs/wm8804.h" + +#define WM8804_CLKOUT_HZ 12000000 + +#define RPI_CIRRUS_DEFAULT_RATE 44100 +#define WM5102_MAX_SYSCLK_1 49152000 /* max sysclk for 4K family */ +#define WM5102_MAX_SYSCLK_2 45158400 /* max sysclk for 11.025K family */ + +static inline unsigned int calc_sysclk(unsigned int rate) +{ + return (rate % 4000) ? WM5102_MAX_SYSCLK_2 : WM5102_MAX_SYSCLK_1; +} + +enum { + DAI_WM5102 = 0, + DAI_WM8804, +}; + +struct rpi_cirrus_priv { + /* mutex for synchronzing FLL1 access with DAPM */ + struct mutex lock; + unsigned int card_rate; + int sync_path_enable; + int fll1_freq; /* negative means RefClock in spdif rx case */ + + /* track hw params/free for substreams */ + unsigned int params_set; + unsigned int min_rate_idx, max_rate_idx; + unsigned char iec958_status[4]; +}; + +/* helper functions */ +static inline struct snd_soc_pcm_runtime *get_wm5102_runtime( + struct snd_soc_card *card) { + return snd_soc_get_pcm_runtime(card, card->dai_link[DAI_WM5102].name); +} + +static inline struct snd_soc_pcm_runtime *get_wm8804_runtime( + struct snd_soc_card *card) { + return snd_soc_get_pcm_runtime(card, card->dai_link[DAI_WM8804].name); +} + + +struct rate_info { + unsigned int value; + char *text; +}; + +static struct rate_info min_rates[] = { + { 0, "off"}, + { 32000, "32kHz"}, + { 44100, "44.1kHz"} +}; + +#define NUM_MIN_RATES ARRAY_SIZE(min_rates) + +static int rpi_cirrus_min_rate_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->count = 1; + uinfo->value.enumerated.items = NUM_MIN_RATES; + + if (uinfo->value.enumerated.item >= NUM_MIN_RATES) + uinfo->value.enumerated.item = NUM_MIN_RATES - 1; + strcpy(uinfo->value.enumerated.name, + min_rates[uinfo->value.enumerated.item].text); + return 0; +} + +static int rpi_cirrus_min_rate_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card); + + ucontrol->value.enumerated.item[0] = priv->min_rate_idx; + return 0; +} + +static int rpi_cirrus_min_rate_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card); + int changed = 0; + + if (priv->min_rate_idx != ucontrol->value.enumerated.item[0]) { + changed = 1; + priv->min_rate_idx = ucontrol->value.enumerated.item[0]; + } + + return changed; +} + +static struct rate_info max_rates[] = { + { 0, "off"}, + { 48000, "48kHz"}, + { 96000, "96kHz"} +}; + +#define NUM_MAX_RATES ARRAY_SIZE(max_rates) + +static int rpi_cirrus_max_rate_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->count = 1; + uinfo->value.enumerated.items = NUM_MAX_RATES; + if (uinfo->value.enumerated.item >= NUM_MAX_RATES) + uinfo->value.enumerated.item = NUM_MAX_RATES - 1; + strcpy(uinfo->value.enumerated.name, + max_rates[uinfo->value.enumerated.item].text); + return 0; +} + +static int rpi_cirrus_max_rate_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card); + + ucontrol->value.enumerated.item[0] = priv->max_rate_idx; + return 0; +} + +static int rpi_cirrus_max_rate_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card); + int changed = 0; + + if (priv->max_rate_idx != ucontrol->value.enumerated.item[0]) { + changed = 1; + priv->max_rate_idx = ucontrol->value.enumerated.item[0]; + } + + return changed; +} + +static int rpi_cirrus_spdif_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; + uinfo->count = 1; + return 0; +} + +static int rpi_cirrus_spdif_playback_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card); + int i; + + for (i = 0; i < 4; i++) + ucontrol->value.iec958.status[i] = priv->iec958_status[i]; + + return 0; +} + +static int rpi_cirrus_spdif_playback_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + struct snd_soc_codec *wm8804_codec = get_wm8804_runtime(card)->codec; + struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card); + unsigned char *stat = priv->iec958_status; + unsigned char *ctrl_stat = ucontrol->value.iec958.status; + unsigned int mask; + int i, changed = 0; + + for (i = 0; i < 4; i++) { + mask = (i == 3) ? 0x3f : 0xff; + if ((ctrl_stat[i] & mask) != (stat[i] & mask)) { + changed = 1; + stat[i] = ctrl_stat[i] & mask; + snd_soc_update_bits(wm8804_codec, + WM8804_SPDTX1 + i, mask, stat[i]); + } + } + + return changed; +} + +static int rpi_cirrus_spdif_mask_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.iec958.status[0] = 0xff; + ucontrol->value.iec958.status[1] = 0xff; + ucontrol->value.iec958.status[2] = 0xff; + ucontrol->value.iec958.status[3] = 0x3f; + + return 0; +} + +static int rpi_cirrus_spdif_capture_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + struct snd_soc_codec *wm8804_codec = get_wm8804_runtime(card)->codec; + unsigned int mask; + int i; + + for (i = 0; i < 4; i++) { + mask = (i == 3) ? 0x3f : 0xff; + ucontrol->value.iec958.status[i] = + snd_soc_read(wm8804_codec, WM8804_RXCHAN1 + i) & mask; + } + + return 0; +} + +#define SPDIF_FLAG_CTRL(desc, reg, bit, invert) \ +{ \ + .access = SNDRV_CTL_ELEM_ACCESS_READ \ + | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \ + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ + .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, NONE) \ + desc " Flag", \ + .info = snd_ctl_boolean_mono_info, \ + .get = rpi_cirrus_spdif_status_flag_get, \ + .private_value = \ + (bit) | ((reg) << 8) | ((invert) << 16) \ +} + +static int rpi_cirrus_spdif_status_flag_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + struct snd_soc_codec *wm8804_codec = get_wm8804_runtime(card)->codec; + + unsigned int bit = kcontrol->private_value & 0xff; + unsigned int reg = (kcontrol->private_value >> 8) & 0xff; + unsigned int invert = (kcontrol->private_value >> 16) & 0xff; + + bool flag = snd_soc_read(wm8804_codec, reg) & (1 << bit); + + ucontrol->value.integer.value[0] = invert ? !flag : flag; + + return 0; +} + +static const char * const recovered_frequency_texts[] = { + "176.4/192 kHz", + "88.2/96 kHz", + "44.1/48 kHz", + "32 kHz" +}; + +#define NUM_RECOVERED_FREQUENCIES \ + ARRAY_SIZE(recovered_frequency_texts) + +static int rpi_cirrus_recovered_frequency_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->count = 1; + uinfo->value.enumerated.items = NUM_RECOVERED_FREQUENCIES; + if (uinfo->value.enumerated.item >= NUM_RECOVERED_FREQUENCIES) + uinfo->value.enumerated.item = NUM_RECOVERED_FREQUENCIES - 1; + strcpy(uinfo->value.enumerated.name, + recovered_frequency_texts[uinfo->value.enumerated.item]); + return 0; +} + +static int rpi_cirrus_recovered_frequency_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + struct snd_soc_codec *wm8804_codec = get_wm8804_runtime(card)->codec; + + ucontrol->value.enumerated.item[0] = + (snd_soc_read(wm8804_codec, WM8804_SPDSTAT) >> 4) & 0x03; + return 0; +} + +static const struct snd_kcontrol_new rpi_cirrus_controls[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Min Sample Rate", + .info = rpi_cirrus_min_rate_info, + .get = rpi_cirrus_min_rate_get, + .put = rpi_cirrus_min_rate_put, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Max Sample Rate", + .info = rpi_cirrus_max_rate_info, + .get = rpi_cirrus_max_rate_get, + .put = rpi_cirrus_max_rate_put, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT), + .info = rpi_cirrus_spdif_info, + .get = rpi_cirrus_spdif_playback_get, + .put = rpi_cirrus_spdif_playback_put, + }, + { + .access = SNDRV_CTL_ELEM_ACCESS_READ + | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT), + .info = rpi_cirrus_spdif_info, + .get = rpi_cirrus_spdif_capture_get, + }, + { + .access = SNDRV_CTL_ELEM_ACCESS_READ, + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK), + .info = rpi_cirrus_spdif_info, + .get = rpi_cirrus_spdif_mask_get, + }, + { + .access = SNDRV_CTL_ELEM_ACCESS_READ + | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, NONE) + "Recovered Frequency", + .info = rpi_cirrus_recovered_frequency_info, + .get = rpi_cirrus_recovered_frequency_get, + }, + SPDIF_FLAG_CTRL("Audio", WM8804_SPDSTAT, 0, 1), + SPDIF_FLAG_CTRL("Non-PCM", WM8804_SPDSTAT, 1, 0), + SPDIF_FLAG_CTRL("Copyright", WM8804_SPDSTAT, 2, 1), + SPDIF_FLAG_CTRL("De-Emphasis", WM8804_SPDSTAT, 3, 0), + SPDIF_FLAG_CTRL("Lock", WM8804_SPDSTAT, 6, 1), + SPDIF_FLAG_CTRL("Invalid", WM8804_INTSTAT, 1, 0), + SPDIF_FLAG_CTRL("TransErr", WM8804_INTSTAT, 3, 0), +}; + +static const char * const linein_micbias_texts[] = { + "off", "on", +}; + +static SOC_ENUM_SINGLE_VIRT_DECL(linein_micbias_enum, + linein_micbias_texts); + +static const struct snd_kcontrol_new linein_micbias_mux = + SOC_DAPM_ENUM("Route", linein_micbias_enum); + +static int rpi_cirrus_spdif_rx_enable_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event); + +const struct snd_soc_dapm_widget rpi_cirrus_dapm_widgets[] = { + SND_SOC_DAPM_MIC("DMIC", NULL), + SND_SOC_DAPM_MIC("Headset Mic", NULL), + SND_SOC_DAPM_INPUT("Line Input"), + SND_SOC_DAPM_MIC("Line Input with Micbias", NULL), + SND_SOC_DAPM_MUX("Line Input Micbias", SND_SOC_NOPM, 0, 0, + &linein_micbias_mux), + SND_SOC_DAPM_INPUT("dummy SPDIF in"), + SND_SOC_DAPM_PGA_E("dummy SPDIFRX", SND_SOC_NOPM, 0, 0, NULL, 0, + rpi_cirrus_spdif_rx_enable_event, + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), + SND_SOC_DAPM_INPUT("Dummy Input"), + SND_SOC_DAPM_OUTPUT("Dummy Output"), +}; + +const struct snd_soc_dapm_route rpi_cirrus_dapm_routes[] = { + { "IN1L", NULL, "Headset Mic" }, + { "IN1R", NULL, "Headset Mic" }, + { "Headset Mic", NULL, "MICBIAS1" }, + + { "IN2L", NULL, "DMIC" }, + { "IN2R", NULL, "DMIC" }, + { "DMIC", NULL, "MICBIAS2" }, + + { "IN3L", NULL, "Line Input Micbias" }, + { "IN3R", NULL, "Line Input Micbias" }, + + { "Line Input Micbias", "off", "Line Input" }, + { "Line Input Micbias", "on", "Line Input with Micbias" }, + + /* Make sure MICVDD is enabled, otherwise we get noise */ + { "Line Input", NULL, "MICVDD" }, + { "Line Input with Micbias", NULL, "MICBIAS3" }, + + /* Dummy routes to check whether SPDIF RX is enabled or not */ + {"dummy SPDIFRX", NULL, "dummy SPDIF in"}, + {"AIFTX", NULL, "dummy SPDIFRX"}, + + /* + * Dummy routes to keep wm5102 from staying off on + * playback/capture if all mixers are off. + */ + { "Dummy Output", NULL, "AIF1RX1" }, + { "Dummy Output", NULL, "AIF1RX2" }, + { "AIF1TX1", NULL, "Dummy Input" }, + { "AIF1TX2", NULL, "Dummy Input" }, +}; + +static int rpi_cirrus_clear_flls(struct snd_soc_card *card, + struct snd_soc_codec *wm5102_codec) { + + int ret1, ret2; + + ret1 = snd_soc_codec_set_pll(wm5102_codec, + WM5102_FLL1, ARIZONA_FLL_SRC_NONE, 0, 0); + ret2 = snd_soc_codec_set_pll(wm5102_codec, + WM5102_FLL1_REFCLK, ARIZONA_FLL_SRC_NONE, 0, 0); + + if (ret1) { + dev_warn(card->dev, + "setting FLL1 to zero failed: %d\n", ret1); + return ret1; + } + if (ret2) { + dev_warn(card->dev, + "setting FLL1_REFCLK to zero failed: %d\n", ret2); + return ret2; + } + return 0; +} + +static int rpi_cirrus_set_fll(struct snd_soc_card *card, + struct snd_soc_codec *wm5102_codec, unsigned int clk_freq) +{ + int ret = snd_soc_codec_set_pll(wm5102_codec, + WM5102_FLL1, + ARIZONA_CLK_SRC_MCLK1, + WM8804_CLKOUT_HZ, + clk_freq); + if (ret) + dev_err(card->dev, "Failed to set FLL1 to %d: %d\n", + clk_freq, ret); + + usleep_range(1000, 2000); + return ret; +} + +static int rpi_cirrus_set_fll_refclk(struct snd_soc_card *card, + struct snd_soc_codec *wm5102_codec, + unsigned int clk_freq, unsigned int aif2_freq) +{ + int ret = snd_soc_codec_set_pll(wm5102_codec, + WM5102_FLL1_REFCLK, + ARIZONA_CLK_SRC_MCLK1, + WM8804_CLKOUT_HZ, + clk_freq); + if (ret) { + dev_err(card->dev, + "Failed to set FLL1_REFCLK to %d: %d\n", + clk_freq, ret); + return ret; + } + + ret = snd_soc_codec_set_pll(wm5102_codec, + WM5102_FLL1, + ARIZONA_CLK_SRC_AIF2BCLK, + aif2_freq, clk_freq); + if (ret) + dev_err(card->dev, + "Failed to set FLL1 with Sync Clock %d to %d: %d\n", + aif2_freq, clk_freq, ret); + + usleep_range(1000, 2000); + return ret; +} + +static int rpi_cirrus_spdif_rx_enable_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_card *card = w->dapm->card; + struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card); + struct snd_soc_codec *wm5102_codec = get_wm5102_runtime(card)->codec; + + unsigned int clk_freq, aif2_freq; + int ret = 0; + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + mutex_lock(&priv->lock); + + /* Enable sync path in case of SPDIF capture use case */ + + clk_freq = calc_sysclk(priv->card_rate); + aif2_freq = 64 * priv->card_rate; + + dev_dbg(card->dev, + "spdif_rx: changing FLL1 to use Ref Clock clk: %d spdif: %d\n", + clk_freq, aif2_freq); + + ret = rpi_cirrus_clear_flls(card, wm5102_codec); + if (ret) { + dev_err(card->dev, "spdif_rx: failed to clear FLLs\n"); + goto out; + } + + ret = rpi_cirrus_set_fll_refclk(card, wm5102_codec, + clk_freq, aif2_freq); + + if (ret) { + dev_err(card->dev, "spdif_rx: failed to set FLLs\n"); + goto out; + } + + /* set to negative to indicate we're doing spdif rx */ + priv->fll1_freq = -clk_freq; + priv->sync_path_enable = 1; + break; + + case SND_SOC_DAPM_POST_PMD: + mutex_lock(&priv->lock); + priv->sync_path_enable = 0; + break; + + default: + return 0; + } + +out: + mutex_unlock(&priv->lock); + return ret; +} + +static int rpi_cirrus_set_bias_level(struct snd_soc_card *card, + struct snd_soc_dapm_context *dapm, + enum snd_soc_bias_level level) +{ + struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card); + struct snd_soc_pcm_runtime *wm5102_runtime = get_wm5102_runtime(card); + struct snd_soc_codec *wm5102_codec = wm5102_runtime->codec; + + int ret = 0; + unsigned int clk_freq; + + if (dapm->dev != wm5102_runtime->codec_dai->dev) + return 0; + + switch (level) { + case SND_SOC_BIAS_PREPARE: + if (dapm->bias_level == SND_SOC_BIAS_ON) + break; + + mutex_lock(&priv->lock); + + if (!priv->sync_path_enable) { + clk_freq = calc_sysclk(priv->card_rate); + + dev_dbg(card->dev, + "set_bias: changing FLL1 from %d to %d\n", + priv->fll1_freq, clk_freq); + + ret = rpi_cirrus_set_fll(card, wm5102_codec, clk_freq); + if (ret) + dev_err(card->dev, + "set_bias: Failed to set FLL1\n"); + else + priv->fll1_freq = clk_freq; + } + mutex_unlock(&priv->lock); + break; + default: + break; + } + + return ret; +} + +static int rpi_cirrus_set_bias_level_post(struct snd_soc_card *card, + struct snd_soc_dapm_context *dapm, + enum snd_soc_bias_level level) +{ + struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card); + struct snd_soc_pcm_runtime *wm5102_runtime = get_wm5102_runtime(card); + struct snd_soc_codec *wm5102_codec = wm5102_runtime->codec; + + if (dapm->dev != wm5102_runtime->codec_dai->dev) + return 0; + + switch (level) { + case SND_SOC_BIAS_STANDBY: + mutex_lock(&priv->lock); + + dev_dbg(card->dev, + "set_bias_post: changing FLL1 from %d to off\n", + priv->fll1_freq); + + if (rpi_cirrus_clear_flls(card, wm5102_codec)) + dev_err(card->dev, + "set_bias_post: failed to clear FLLs\n"); + else + priv->fll1_freq = 0; + + mutex_unlock(&priv->lock); + + break; + default: + break; + } + + return 0; +} + +static int rpi_cirrus_set_wm8804_pll(struct snd_soc_card *card, + struct snd_soc_dai *wm8804_dai, unsigned int rate) +{ + int ret; + + /* use 256fs */ + unsigned int clk_freq = rate * 256; + + ret = snd_soc_dai_set_pll(wm8804_dai, 0, 0, + WM8804_CLKOUT_HZ, clk_freq); + if (ret) { + dev_err(card->dev, + "Failed to set WM8804 PLL to %d: %d\n", clk_freq, ret); + return ret; + } + + /* Set MCLK as PLL Output */ + ret = snd_soc_dai_set_sysclk(wm8804_dai, + WM8804_TX_CLKSRC_PLL, clk_freq, 0); + if (ret) { + dev_err(card->dev, + "Failed to set MCLK as PLL Output: %d\n", ret); + return ret; + } + + return ret; +} + +static int rpi_cirrus_startup(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_card *card = rtd->card; + struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card); + unsigned int min_rate = min_rates[priv->min_rate_idx].value; + unsigned int max_rate = max_rates[priv->max_rate_idx].value; + + if (min_rate || max_rate) { + if (max_rate == 0) + max_rate = UINT_MAX; + + dev_dbg(card->dev, + "startup: limiting rate to %u-%u\n", + min_rate, max_rate); + + snd_pcm_hw_constraint_minmax(substream->runtime, + SNDRV_PCM_HW_PARAM_RATE, min_rate, max_rate); + } + + return 0; +} + +static struct snd_soc_pcm_stream rpi_cirrus_dai_link2_params = { + .formats = SNDRV_PCM_FMTBIT_S24_LE, + .channels_min = 2, + .channels_max = 2, + .rate_min = RPI_CIRRUS_DEFAULT_RATE, + .rate_max = RPI_CIRRUS_DEFAULT_RATE, +}; + +static int rpi_cirrus_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_card *card = rtd->card; + struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card); + struct snd_soc_dai *bcm_i2s_dai = rtd->cpu_dai; + struct snd_soc_codec *wm5102_codec = rtd->codec; + struct snd_soc_dai *wm8804_dai = get_wm8804_runtime(card)->codec_dai; + + int ret; + + unsigned int width = snd_pcm_format_physical_width( + params_format(params)); + unsigned int rate = params_rate(params); + unsigned int clk_freq = calc_sysclk(rate); + + mutex_lock(&priv->lock); + + dev_dbg(card->dev, "hw_params: setting rate to %d\n", rate); + + ret = snd_soc_dai_set_bclk_ratio(bcm_i2s_dai, 2 * width); + if (ret) { + dev_err(card->dev, "set_bclk_ratio failed: %d\n", ret); + goto out; + } + + ret = snd_soc_dai_set_tdm_slot(rtd->codec_dai, 0x03, 0x03, 2, width); + if (ret) { + dev_err(card->dev, "set_tdm_slot failed: %d\n", ret); + goto out; + } + + /* WM8804 supports sample rates from 32k only */ + if (rate >= 32000) { + ret = rpi_cirrus_set_wm8804_pll(card, wm8804_dai, rate); + if (ret) + goto out; + } + + ret = snd_soc_codec_set_sysclk(wm5102_codec, + ARIZONA_CLK_SYSCLK, + ARIZONA_CLK_SRC_FLL1, + clk_freq, + SND_SOC_CLOCK_IN); + if (ret) { + dev_err(card->dev, "Failed to set SYSCLK: %d\n", ret); + goto out; + } + + if ((priv->fll1_freq > 0) && (priv->fll1_freq != clk_freq)) { + dev_dbg(card->dev, + "hw_params: changing FLL1 from %d to %d\n", + priv->fll1_freq, clk_freq); + + if (rpi_cirrus_clear_flls(card, wm5102_codec)) { + dev_err(card->dev, "hw_params: failed to clear FLLs\n"); + goto out; + } + + if (rpi_cirrus_set_fll(card, wm5102_codec, clk_freq)) { + dev_err(card->dev, "hw_params: failed to set FLL\n"); + goto out; + } + + priv->fll1_freq = clk_freq; + } + + priv->card_rate = rate; + rpi_cirrus_dai_link2_params.rate_min = rate; + rpi_cirrus_dai_link2_params.rate_max = rate; + + priv->params_set |= 1 << substream->stream; + +out: + mutex_unlock(&priv->lock); + + return ret; +} + +static int rpi_cirrus_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_card *card = rtd->card; + struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card); + struct snd_soc_codec *wm5102_codec = rtd->codec; + int ret; + unsigned int old_params_set = priv->params_set; + + priv->params_set &= ~(1 << substream->stream); + + /* disable sysclk if this was the last open stream */ + if (priv->params_set == 0 && old_params_set) { + dev_dbg(card->dev, + "hw_free: Setting SYSCLK to Zero\n"); + + ret = snd_soc_codec_set_sysclk(wm5102_codec, + ARIZONA_CLK_SYSCLK, + ARIZONA_CLK_SRC_FLL1, + 0, + SND_SOC_CLOCK_IN); + if (ret) + dev_err(card->dev, + "hw_free: Failed to set SYSCLK to Zero: %d\n", + ret); + } + return 0; +} + +static int rpi_cirrus_init_wm5102(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_codec *codec = rtd->codec; + int ret; + + /* no 32kHz input, derive it from sysclk if needed */ + snd_soc_update_bits(codec, + ARIZONA_CLOCK_32K_1, ARIZONA_CLK_32K_SRC_MASK, 2); + + if (rpi_cirrus_clear_flls(rtd->card, codec)) + dev_warn(rtd->card->dev, + "init_wm5102: failed to clear FLLs\n"); + + ret = snd_soc_codec_set_sysclk(codec, + ARIZONA_CLK_SYSCLK, ARIZONA_CLK_SRC_FLL1, + 0, SND_SOC_CLOCK_IN); + if (ret) { + dev_err(rtd->card->dev, + "Failed to set SYSCLK to Zero: %d\n", ret); + return ret; + } + + return 0; +} + +static int rpi_cirrus_init_wm8804(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_codec *codec = rtd->codec; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_soc_card *card = rtd->card; + struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card); + unsigned int mask; + int i, ret; + + for (i = 0; i < 4; i++) { + mask = (i == 3) ? 0x3f : 0xff; + priv->iec958_status[i] = + snd_soc_read(codec, WM8804_SPDTX1 + i) & mask; + } + + /* Setup for 256fs */ + ret = snd_soc_dai_set_clkdiv(codec_dai, + WM8804_MCLK_DIV, WM8804_MCLKDIV_256FS); + if (ret) { + dev_err(card->dev, + "init_wm8804: Failed to set MCLK_DIV to 256fs: %d\n", + ret); + return ret; + } + + /* Output OSC on CLKOUT */ + ret = snd_soc_dai_set_sysclk(codec_dai, + WM8804_CLKOUT_SRC_OSCCLK, WM8804_CLKOUT_HZ, 0); + if (ret) + dev_err(card->dev, + "init_wm8804: Failed to set CLKOUT as OSC Frequency: %d\n", + ret); + + /* Init PLL with default samplerate */ + ret = rpi_cirrus_set_wm8804_pll(card, codec_dai, + RPI_CIRRUS_DEFAULT_RATE); + if (ret) + dev_err(card->dev, + "init_wm8804: Failed to setup PLL for %dHz: %d\n", + RPI_CIRRUS_DEFAULT_RATE, ret); + + return ret; +} + +static struct snd_soc_ops rpi_cirrus_ops = { + .startup = rpi_cirrus_startup, + .hw_params = rpi_cirrus_hw_params, + .hw_free = rpi_cirrus_hw_free, +}; + +static struct snd_soc_dai_link rpi_cirrus_dai[] = { + [DAI_WM5102] = { + .name = "WM5102", + .stream_name = "WM5102 AiFi", + .codec_dai_name = "wm5102-aif1", + .codec_name = "wm5102-codec", + .dai_fmt = SND_SOC_DAIFMT_I2S + | SND_SOC_DAIFMT_NB_NF + | SND_SOC_DAIFMT_CBM_CFM, + .ops = &rpi_cirrus_ops, + .init = rpi_cirrus_init_wm5102, + }, + [DAI_WM8804] = { + .name = "WM5102 SPDIF", + .stream_name = "SPDIF Tx/Rx", + .cpu_dai_name = "wm5102-aif2", + .codec_dai_name = "wm8804-spdif", + .codec_name = "wm8804.1-003b", + .dai_fmt = SND_SOC_DAIFMT_I2S + | SND_SOC_DAIFMT_NB_NF + | SND_SOC_DAIFMT_CBM_CFM, + .ignore_suspend = 1, + .params = &rpi_cirrus_dai_link2_params, + .init = rpi_cirrus_init_wm8804, + }, +}; + + +static int rpi_cirrus_late_probe(struct snd_soc_card *card) +{ + struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card); + struct snd_soc_pcm_runtime *wm5102_runtime = get_wm5102_runtime(card); + struct snd_soc_pcm_runtime *wm8804_runtime = get_wm8804_runtime(card); + int ret; + + dev_dbg(card->dev, "iec958_bits: %02x %02x %02x %02x\n", + priv->iec958_status[0], + priv->iec958_status[1], + priv->iec958_status[2], + priv->iec958_status[3]); + + ret = snd_soc_dai_set_sysclk( + wm5102_runtime->codec_dai, ARIZONA_CLK_SYSCLK, 0, 0); + if (ret) { + dev_err(card->dev, + "Failed to set WM5102 codec dai clk domain: %d\n", ret); + return ret; + } + + ret = snd_soc_dai_set_sysclk( + wm8804_runtime->cpu_dai, ARIZONA_CLK_SYSCLK, 0, 0); + if (ret) + dev_err(card->dev, + "Failed to set WM8804 codec dai clk domain: %d\n", ret); + + return ret; +} + +/* audio machine driver */ +static struct snd_soc_card rpi_cirrus_card = { + .name = "RPi-Cirrus", + .driver_name = "RPiCirrus", + .owner = THIS_MODULE, + .dai_link = rpi_cirrus_dai, + .num_links = ARRAY_SIZE(rpi_cirrus_dai), + .late_probe = rpi_cirrus_late_probe, + .controls = rpi_cirrus_controls, + .num_controls = ARRAY_SIZE(rpi_cirrus_controls), + .dapm_widgets = rpi_cirrus_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(rpi_cirrus_dapm_widgets), + .dapm_routes = rpi_cirrus_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(rpi_cirrus_dapm_routes), + .set_bias_level = rpi_cirrus_set_bias_level, + .set_bias_level_post = rpi_cirrus_set_bias_level_post, +}; + +static int rpi_cirrus_probe(struct platform_device *pdev) +{ + int ret = 0; + struct rpi_cirrus_priv *priv; + struct device_node *i2s_node; + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->min_rate_idx = 1; /* min samplerate 32kHz */ + priv->card_rate = RPI_CIRRUS_DEFAULT_RATE; + + mutex_init(&priv->lock); + + snd_soc_card_set_drvdata(&rpi_cirrus_card, priv); + + if (!pdev->dev.of_node) + return -ENODEV; + + i2s_node = of_parse_phandle( + pdev->dev.of_node, "i2s-controller", 0); + if (!i2s_node) { + dev_err(&pdev->dev, "i2s-controller missing in DT\n"); + return -ENODEV; + } + + rpi_cirrus_dai[DAI_WM5102].cpu_of_node = i2s_node; + rpi_cirrus_dai[DAI_WM5102].platform_of_node = i2s_node; + + rpi_cirrus_card.dev = &pdev->dev; + + ret = devm_snd_soc_register_card(&pdev->dev, &rpi_cirrus_card); + if (ret) { + if (ret == -EPROBE_DEFER) + dev_dbg(&pdev->dev, + "register card requested probe deferral\n"); + else + dev_err(&pdev->dev, + "Failed to register card: %d\n", ret); + } + + return ret; +} + +static const struct of_device_id rpi_cirrus_of_match[] = { + { .compatible = "wlf,rpi-cirrus", }, + {}, +}; +MODULE_DEVICE_TABLE(of, rpi_cirrus_of_match); + +static struct platform_driver rpi_cirrus_driver = { + .driver = { + .name = "snd-rpi-cirrus", + .of_match_table = of_match_ptr(rpi_cirrus_of_match), + }, + .probe = rpi_cirrus_probe, +}; + +module_platform_driver(rpi_cirrus_driver); + +MODULE_AUTHOR("Matthias Reichl "); +MODULE_DESCRIPTION("ASoC driver for Cirrus Logic Audio Card"); +MODULE_LICENSE("GPL"); From 64a469b73e0b90f821ef39c74e683a5ddac3f8f0 Mon Sep 17 00:00:00 2001 From: Miquel Date: Fri, 24 Feb 2017 20:51:06 +0100 Subject: [PATCH 085/165] sound: Support for Dion Audio LOCO-V2 DAC-AMP HAT Signed-off-by: Miquel Blauw --- sound/soc/bcm/Kconfig | 7 ++ sound/soc/bcm/Makefile | 2 + sound/soc/bcm/dionaudio_loco-v2.c | 140 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 149 insertions(+) create mode 100644 sound/soc/bcm/dionaudio_loco-v2.c diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index c0489e591b9b8c8da004ca9e300e97f1a21e5ce1..3e1ee13ef8ec31849e29e551026ba427f8e44fe6 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -134,6 +134,13 @@ config SND_BCM2708_SOC_DIONAUDIO_LOCO help Say Y or M if you want to add support for Dion Audio LOCO. +config SND_BCM2708_SOC_DIONAUDIO_LOCO_V2 + tristate "Support for Dion Audio LOCO-V2 DAC-AMP" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_PCM5122 + help + Say Y or M if you want to add support for Dion Audio LOCO-V2. + config SND_BCM2708_SOC_ALLO_PIANO_DAC tristate "Support for Allo Piano DAC" depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index 84c2b20ce2e51b525797ee58de95734ee7847e15..4d8adf691021a974310589e92e599924811f22cb 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -25,6 +25,7 @@ snd-soc-raspidac3-objs := raspidac3.o snd-soc-audioinjector-pi-soundcard-objs := audioinjector-pi-soundcard.o snd-soc-digidac1-soundcard-objs := digidac1-soundcard.o snd-soc-dionaudio-loco-objs := dionaudio_loco.o +snd-soc-dionaudio-loco-v2-objs := dionaudio_loco-v2.o snd-soc-allo-piano-dac-objs := allo-piano-dac.o snd-soc-pisound-objs := pisound.o @@ -44,5 +45,6 @@ obj-$(CONFIG_SND_BCM2708_SOC_RASPIDAC3) += snd-soc-raspidac3.o obj-$(CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD) += snd-soc-audioinjector-pi-soundcard.o obj-$(CONFIG_SND_DIGIDAC1_SOUNDCARD) += snd-soc-digidac1-soundcard.o obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO) += snd-soc-dionaudio-loco.o +obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO_V2) += snd-soc-dionaudio-loco-v2.o obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC) += snd-soc-allo-piano-dac.o obj-$(CONFIG_SND_PISOUND) += snd-soc-pisound.o diff --git a/sound/soc/bcm/dionaudio_loco-v2.c b/sound/soc/bcm/dionaudio_loco-v2.c new file mode 100644 index 0000000000000000000000000000000000000000..a009c49477972a9832175d86f201b0357a08f7c0 --- /dev/null +++ b/sound/soc/bcm/dionaudio_loco-v2.c @@ -0,0 +1,140 @@ +/* + * ASoC Driver for Dion Audio LOCO-V2 DAC-AMP + * + * Author: Miquel Blauw + * Copyright 2017 + * + * Based on the software of the RPi-DAC writen by Florian Meier + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include + +#include +#include +#include +#include +#include + +static bool digital_gain_0db_limit = true; + +static int snd_rpi_dionaudio_loco_v2_init(struct snd_soc_pcm_runtime *rtd) +{ + if (digital_gain_0db_limit) { + int ret; + struct snd_soc_card *card = rtd->card; + + ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207); + if (ret < 0) + dev_warn(card->dev, "Failed to set volume limit: %d\n", ret); + } + + return 0; +} + +static int snd_rpi_dionaudio_loco_v2_hw_params( + struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + + unsigned int sample_bits = + snd_pcm_format_physical_width(params_format(params)); + + return snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2); +} + +/* machine stream operations */ +static struct snd_soc_ops snd_rpi_dionaudio_loco_v2_ops = { + .hw_params = snd_rpi_dionaudio_loco_v2_hw_params, +}; + +static struct snd_soc_dai_link snd_rpi_dionaudio_loco_v2_dai[] = { +{ + .name = "DionAudio LOCO-V2", + .stream_name = "DionAudio LOCO-V2 DAC-AMP", + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "pcm512x-hifi", + .platform_name = "bcm2708-i2s.0", + .codec_name = "pcm512x.1-004d", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + .ops = &snd_rpi_dionaudio_loco_v2_ops, + .init = snd_rpi_dionaudio_loco_v2_init, +},}; + +/* audio machine driver */ +static struct snd_soc_card snd_rpi_dionaudio_loco_v2 = { + .name = "Dion Audio LOCO-V2", + .dai_link = snd_rpi_dionaudio_loco_v2_dai, + .num_links = ARRAY_SIZE(snd_rpi_dionaudio_loco_v2_dai), +}; + +static int snd_rpi_dionaudio_loco_v2_probe(struct platform_device *pdev) +{ + int ret = 0; + + snd_rpi_dionaudio_loco_v2.dev = &pdev->dev; + + if (pdev->dev.of_node) { + struct device_node *i2s_node; + struct snd_soc_dai_link *dai = + &snd_rpi_dionaudio_loco_v2_dai[0]; + + i2s_node = of_parse_phandle(pdev->dev.of_node, + "i2s-controller", 0); + if (i2s_node) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + } + + digital_gain_0db_limit = !of_property_read_bool( + pdev->dev.of_node, "dionaudio,24db_digital_gain"); + } + + ret = snd_soc_register_card(&snd_rpi_dionaudio_loco_v2); + if (ret) + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", + ret); + + return ret; +} + +static int snd_rpi_dionaudio_loco_v2_remove(struct platform_device *pdev) +{ + return snd_soc_unregister_card(&snd_rpi_dionaudio_loco_v2); +} + +static const struct of_device_id dionaudio_of_match[] = { + { .compatible = "dionaudio,dionaudio-loco-v2", }, + {}, +}; +MODULE_DEVICE_TABLE(of, dionaudio_of_match); + +static struct platform_driver snd_rpi_dionaudio_loco_v2_driver = { + .driver = { + .name = "snd-rpi-dionaudio-loco-v2", + .owner = THIS_MODULE, + .of_match_table = dionaudio_of_match, + }, + .probe = snd_rpi_dionaudio_loco_v2_probe, + .remove = snd_rpi_dionaudio_loco_v2_remove, +}; + +module_platform_driver(snd_rpi_dionaudio_loco_v2_driver); + +MODULE_AUTHOR("Miquel Blauw "); +MODULE_DESCRIPTION("ASoC Driver for DionAudio LOCO-V2"); +MODULE_LICENSE("GPL v2"); From a6bdc87e9ccb8f8cd1973767c81610720b0da45f Mon Sep 17 00:00:00 2001 From: Fe-Pi Date: Wed, 1 Mar 2017 04:42:43 -0700 Subject: [PATCH 086/165] Add support for Fe-Pi audio sound card. (#1867) Fe-Pi Audio Sound Card is based on NXP SGTL5000 codec. Mechanical specification of the board is the same the Raspberry Pi Zero. 3.5mm jacks for Headphone/Mic, Line In, and Line Out. Signed-off-by: Henry Kupis --- sound/soc/bcm/Kconfig | 7 ++ sound/soc/bcm/Makefile | 2 + sound/soc/bcm/fe-pi-audio.c | 158 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 167 insertions(+) create mode 100644 sound/soc/bcm/fe-pi-audio.c diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index 3e1ee13ef8ec31849e29e551026ba427f8e44fe6..7473efd6f400a1a1618aac830753fce39d203b89 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -148,6 +148,13 @@ config SND_BCM2708_SOC_ALLO_PIANO_DAC help Say Y or M if you want to add support for Allo Piano DAC. +config SND_BCM2708_SOC_FE_PI_AUDIO + tristate "Support for Fe-Pi-Audio" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_SGTL5000 + help + Say Y or M if you want to add support for Fe-Pi-Audio. + config SND_PISOUND tristate "Support for Blokas Labs pisound" depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index 4d8adf691021a974310589e92e599924811f22cb..8d2d2073dc2cede9fbd9eb8b49083650ba0a8172 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -28,6 +28,7 @@ snd-soc-dionaudio-loco-objs := dionaudio_loco.o snd-soc-dionaudio-loco-v2-objs := dionaudio_loco-v2.o snd-soc-allo-piano-dac-objs := allo-piano-dac.o snd-soc-pisound-objs := pisound.o +snd-soc-fe-pi-audio-objs := fe-pi-audio.o obj-$(CONFIG_SND_BCM2708_SOC_ADAU1977_ADC) += snd-soc-adau1977-adc.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) += snd-soc-hifiberry-amp.o @@ -48,3 +49,4 @@ obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO) += snd-soc-dionaudio-loco.o obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO_V2) += snd-soc-dionaudio-loco-v2.o obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC) += snd-soc-allo-piano-dac.o obj-$(CONFIG_SND_PISOUND) += snd-soc-pisound.o +obj-$(CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO) += snd-soc-fe-pi-audio.o diff --git a/sound/soc/bcm/fe-pi-audio.c b/sound/soc/bcm/fe-pi-audio.c new file mode 100644 index 0000000000000000000000000000000000000000..015b56fd73cc36be5b5eecd17548fd036eb64d61 --- /dev/null +++ b/sound/soc/bcm/fe-pi-audio.c @@ -0,0 +1,158 @@ +/* + * ASoC Driver for Fe-Pi Audio Sound Card + * + * Author: Henry Kupis + * Copyright 2016 + * based on code by Florian Meier + * based on code by Shawn Guo + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include + +#include +#include +#include +#include +#include + +#include "../codecs/sgtl5000.h" + +static int snd_fe_pi_audio_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_card *card = rtd->card; + struct snd_soc_codec *codec = rtd->codec; + + snd_soc_dapm_force_enable_pin(&card->dapm, "LO"); + snd_soc_dapm_force_enable_pin(&card->dapm, "ADC"); + snd_soc_dapm_force_enable_pin(&card->dapm, "DAC"); + snd_soc_dapm_force_enable_pin(&card->dapm, "HP"); + snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER, + SGTL5000_VAG_POWERUP, SGTL5000_VAG_POWERUP); + + return 0; +} + +static int snd_fe_pi_audio_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct device *dev = rtd->card->dev; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + + int ret; + + /* Set SGTL5000's SYSCLK */ + ret = snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, 12288000, SND_SOC_CLOCK_IN); + if (ret) { + dev_err(dev, "could not set codec driver clock params\n"); + return ret; + } + + return 0; +} + + +static struct snd_soc_ops snd_fe_pi_audio_ops = { + .hw_params = snd_fe_pi_audio_hw_params, +}; + +static struct snd_soc_dai_link snd_fe_pi_audio_dai[] = { + { + .name = "FE-PI", + .stream_name = "Fe-Pi HiFi", + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "sgtl5000", + .platform_name = "bcm2708-i2s.0", + .codec_name = "sgtl5000.1-000a", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, + .ops = &snd_fe_pi_audio_ops, + .init = snd_fe_pi_audio_init, + }, +}; + +static const struct snd_soc_dapm_route fe_pi_audio_dapm_routes[] = { + {"ADC", NULL, "Mic Bias"}, +}; + + +static struct snd_soc_card fe_pi_audio = { + .name = "Fe-Pi Audio", + .owner = THIS_MODULE, + .dai_link = snd_fe_pi_audio_dai, + .num_links = ARRAY_SIZE(snd_fe_pi_audio_dai), + + .dapm_routes = fe_pi_audio_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(fe_pi_audio_dapm_routes), +}; + +static int snd_fe_pi_audio_probe(struct platform_device *pdev) +{ + int ret = 0; + struct snd_soc_card *card = &fe_pi_audio; + struct device_node *np = pdev->dev.of_node; + struct device_node *i2s_node; + struct snd_soc_dai_link *dai = &snd_fe_pi_audio_dai[0]; + + fe_pi_audio.dev = &pdev->dev; + + i2s_node = of_parse_phandle(np, "i2s-controller", 0); + if (!i2s_node) { + dev_err(&pdev->dev, "i2s_node phandle missing or invalid\n"); + return -EINVAL; + } + + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + + of_node_put(i2s_node); + + card->dev = &pdev->dev; + platform_set_drvdata(pdev, card); + + ret = snd_soc_register_card(card); + if (ret && ret != -EPROBE_DEFER) + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret); + + return ret; +} + +static int snd_fe_pi_audio_remove(struct platform_device *pdev) +{ + return snd_soc_unregister_card(&fe_pi_audio); +} + +static const struct of_device_id snd_fe_pi_audio_of_match[] = { + { .compatible = "fe-pi,fe-pi-audio", }, + {}, +}; +MODULE_DEVICE_TABLE(of, snd_fe_pi_audio_of_match); + +static struct platform_driver snd_fe_pi_audio_driver = { + .driver = { + .name = "snd-fe-pi-audio", + .owner = THIS_MODULE, + .of_match_table = snd_fe_pi_audio_of_match, + }, + .probe = snd_fe_pi_audio_probe, + .remove = snd_fe_pi_audio_remove, +}; + +module_platform_driver(snd_fe_pi_audio_driver); + +MODULE_AUTHOR("Henry Kupis "); +MODULE_DESCRIPTION("ASoC Driver for Fe-Pi Audio"); +MODULE_LICENSE("GPL v2"); From 70d336fd5ba0a544056a791c279983ab7da6036d Mon Sep 17 00:00:00 2001 From: Matt Flax Date: Wed, 8 Mar 2017 20:04:13 +1100 Subject: [PATCH 087/165] Add support for the AudioInjector.net Octo sound card --- sound/soc/bcm/Kconfig | 7 + sound/soc/bcm/Makefile | 2 + sound/soc/bcm/audioinjector-octo-soundcard.c | 286 +++++++++++++++++++++++++++ 3 files changed, 295 insertions(+) create mode 100644 sound/soc/bcm/audioinjector-octo-soundcard.c diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index 7473efd6f400a1a1618aac830753fce39d203b89..706c500b5303ac3a0fd8687d23dc9f06c7d08388 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -119,6 +119,13 @@ config SND_AUDIOINJECTOR_PI_SOUNDCARD help Say Y or M if you want to add support for audioinjector.net Pi Hat +config SND_AUDIOINJECTOR_OCTO_SOUNDCARD + tristate "Support for audioinjector.net Octo channel (Hat) soundcard" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_CS42XX8_I2C + help + Say Y or M if you want to add support for audioinjector.net octo add on + config SND_DIGIDAC1_SOUNDCARD tristate "Support for Red Rocks Audio DigiDAC1" depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index 8d2d2073dc2cede9fbd9eb8b49083650ba0a8172..d448aa517bf994fc0a41580c91b5d87deec9e1b0 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -23,6 +23,7 @@ snd-soc-iqaudio-dac-objs := iqaudio-dac.o snd-soc-iqaudio-digi-objs := iqaudio_digi.o snd-soc-raspidac3-objs := raspidac3.o snd-soc-audioinjector-pi-soundcard-objs := audioinjector-pi-soundcard.o +snd-soc-audioinjector-octo-soundcard-objs := audioinjector-octo-soundcard.o snd-soc-digidac1-soundcard-objs := digidac1-soundcard.o snd-soc-dionaudio-loco-objs := dionaudio_loco.o snd-soc-dionaudio-loco-v2-objs := dionaudio_loco-v2.o @@ -44,6 +45,7 @@ obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DIGI) += snd-soc-iqaudio-digi.o obj-$(CONFIG_SND_BCM2708_SOC_RASPIDAC3) += snd-soc-raspidac3.o obj-$(CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD) += snd-soc-audioinjector-pi-soundcard.o +obj-$(CONFIG_SND_AUDIOINJECTOR_OCTO_SOUNDCARD) += snd-soc-audioinjector-octo-soundcard.o obj-$(CONFIG_SND_DIGIDAC1_SOUNDCARD) += snd-soc-digidac1-soundcard.o obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO) += snd-soc-dionaudio-loco.o obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO_V2) += snd-soc-dionaudio-loco-v2.o diff --git a/sound/soc/bcm/audioinjector-octo-soundcard.c b/sound/soc/bcm/audioinjector-octo-soundcard.c new file mode 100644 index 0000000000000000000000000000000000000000..9effea725798640887755dfa688da45338718afc --- /dev/null +++ b/sound/soc/bcm/audioinjector-octo-soundcard.c @@ -0,0 +1,286 @@ +/* + * ASoC Driver for AudioInjector Pi octo channel soundcard (hat) + * + * Created on: 27-October-2016 + * Author: flatmax@flatmax.org + * based on audioinjector-pi-soundcard.c + * + * Copyright (C) 2016 Flatmax Pty. Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include + +#include +#include +#include +#include + +static struct gpio_descs *mult_gpios; +static unsigned int audioinjector_octo_rate; + +static int audioinjector_octo_dai_init(struct snd_soc_pcm_runtime *rtd) +{ + return snd_soc_dai_set_bclk_ratio(rtd->cpu_dai, 64); +} + +static int audioinjector_octo_startup(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + rtd->cpu_dai->driver->playback.channels_min = 8; + rtd->cpu_dai->driver->playback.channels_max = 8; + rtd->cpu_dai->driver->capture.channels_min = 8; + rtd->cpu_dai->driver->capture.channels_max = 8; + rtd->codec_dai->driver->capture.channels_max = 8; + return 0; +} + +static void audioinjector_octo_shutdown(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + rtd->cpu_dai->driver->playback.channels_min = 2; + rtd->cpu_dai->driver->playback.channels_max = 2; + rtd->cpu_dai->driver->capture.channels_min = 2; + rtd->cpu_dai->driver->capture.channels_max = 2; + rtd->codec_dai->driver->capture.channels_max = 6; +} + +static int audioinjector_octo_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + + // set codec DAI configuration + int ret = snd_soc_dai_set_fmt(rtd->codec_dai, + SND_SOC_DAIFMT_CBS_CFS|SND_SOC_DAIFMT_DSP_A| + SND_SOC_DAIFMT_NB_NF); + if (ret < 0) + return ret; + + // set cpu DAI configuration + ret = snd_soc_dai_set_fmt(rtd->cpu_dai, + SND_SOC_DAIFMT_CBM_CFM|SND_SOC_DAIFMT_I2S| + SND_SOC_DAIFMT_NB_NF); + if (ret < 0) + return ret; + + audioinjector_octo_rate = params_rate(params); + + return 0; +} + +static int audioinjector_octo_trigger(struct snd_pcm_substream *substream, + int cmd){ + int mult[4]; + mult[0] = 0; + mult[1] = 0; + mult[2] = 0; + mult[3] = 0; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + switch (audioinjector_octo_rate) { + case 192000: + mult[3] = 1; + case 176640: + mult[0] = 1; + mult[1] = 1; + mult[2] = 1; + break; + case 96000: + mult[3] = 1; + case 88200: + mult[1] = 1; + mult[2] = 1; + break; + case 64000: + mult[3] = 1; + case 58800: + mult[0] = 1; + mult[2] = 1; + break; + case 48000: + mult[3] = 1; + case 44100: + mult[2] = 1; + break; + case 32000: + mult[3] = 1; + case 29400: + mult[0] = 1; + mult[1] = 1; + break; + case 24000: + mult[3] = 1; + case 22050: + mult[1] = 1; + break; + case 16000: + mult[3] = 1; + case 14700: + mult[0] = 1; + break; + case 8000: + mult[3] = 1; + break; + default: + return -EINVAL; + } + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + break; + default: + return -EINVAL; + } + gpiod_set_array_value_cansleep(mult_gpios->ndescs, mult_gpios->desc, + mult); + + return 0; +} + +static struct snd_soc_ops audioinjector_octo_ops = { + .startup = audioinjector_octo_startup, + .shutdown = audioinjector_octo_shutdown, + .hw_params = audioinjector_octo_hw_params, + .trigger = audioinjector_octo_trigger, +}; + +static struct snd_soc_dai_link audioinjector_octo_dai[] = { + { + .name = "AudioInjector Octo", + .stream_name = "AudioInject-HIFI", + .codec_dai_name = "cs42448", + .ops = &audioinjector_octo_ops, + .init = audioinjector_octo_dai_init, + }, +}; + +static const struct snd_soc_dapm_widget audioinjector_octo_widgets[] = { + SND_SOC_DAPM_OUTPUT("OUTPUTS0"), + SND_SOC_DAPM_OUTPUT("OUTPUTS1"), + SND_SOC_DAPM_OUTPUT("OUTPUTS2"), + SND_SOC_DAPM_OUTPUT("OUTPUTS3"), + SND_SOC_DAPM_INPUT("INPUTS0"), + SND_SOC_DAPM_INPUT("INPUTS1"), + SND_SOC_DAPM_INPUT("INPUTS2"), +}; + +static const struct snd_soc_dapm_route audioinjector_octo_route[] = { + /* Balanced outputs */ + {"OUTPUTS0", NULL, "AOUT1L"}, + {"OUTPUTS0", NULL, "AOUT1R"}, + {"OUTPUTS1", NULL, "AOUT2L"}, + {"OUTPUTS1", NULL, "AOUT2R"}, + {"OUTPUTS2", NULL, "AOUT3L"}, + {"OUTPUTS2", NULL, "AOUT3R"}, + {"OUTPUTS3", NULL, "AOUT4L"}, + {"OUTPUTS3", NULL, "AOUT4R"}, + + /* Balanced inputs */ + {"AIN1L", NULL, "INPUTS0"}, + {"AIN1R", NULL, "INPUTS0"}, + {"AIN2L", NULL, "INPUTS1"}, + {"AIN2R", NULL, "INPUTS1"}, + {"AIN3L", NULL, "INPUTS2"}, + {"AIN3R", NULL, "INPUTS2"}, +}; + +static struct snd_soc_card snd_soc_audioinjector_octo = { + .name = "audioinjector-octo-soundcard", + .dai_link = audioinjector_octo_dai, + .num_links = ARRAY_SIZE(audioinjector_octo_dai), + + .dapm_widgets = audioinjector_octo_widgets, + .num_dapm_widgets = ARRAY_SIZE(audioinjector_octo_widgets), + .dapm_routes = audioinjector_octo_route, + .num_dapm_routes = ARRAY_SIZE(audioinjector_octo_route), +}; + +static int audioinjector_octo_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &snd_soc_audioinjector_octo; + int ret; + + card->dev = &pdev->dev; + + if (pdev->dev.of_node) { + struct snd_soc_dai_link *dai = &audioinjector_octo_dai[0]; + struct device_node *i2s_node = + of_parse_phandle(pdev->dev.of_node, + "i2s-controller", 0); + struct device_node *codec_node = + of_parse_phandle(pdev->dev.of_node, + "codec", 0); + + mult_gpios = devm_gpiod_get_array_optional(&pdev->dev, "mult", + GPIOD_OUT_LOW); + if (IS_ERR(mult_gpios)) + return PTR_ERR(mult_gpios); + + if (i2s_node && codec_node) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + dai->codec_name = NULL; + dai->codec_of_node = codec_node; + } else + if (!dai->cpu_of_node) { + dev_err(&pdev->dev, + "i2s-controller missing or invalid in DT\n"); + return -EINVAL; + } else { + dev_err(&pdev->dev, + "Property 'codec' missing or invalid\n"); + return -EINVAL; + } + } + + ret = snd_soc_register_card(card); + if (ret != 0) + dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); + return ret; +} + +static int audioinjector_octo_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + + return snd_soc_unregister_card(card); +} + +static const struct of_device_id audioinjector_octo_of_match[] = { + { .compatible = "ai,audioinjector-octo-soundcard", }, + {}, +}; +MODULE_DEVICE_TABLE(of, audioinjector_octo_of_match); + +static struct platform_driver audioinjector_octo_driver = { + .driver = { + .name = "audioinjector-audio", + .owner = THIS_MODULE, + .of_match_table = audioinjector_octo_of_match, + }, + .probe = audioinjector_octo_probe, + .remove = audioinjector_octo_remove, +}; + +module_platform_driver(audioinjector_octo_driver); +MODULE_AUTHOR("Matt Flax "); +MODULE_DESCRIPTION("AudioInjector.net octo Soundcard"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:audioinjector-octo-soundcard"); From f68eb19ebf3a0566d9d80bbb055a8bc28e073b7b Mon Sep 17 00:00:00 2001 From: P33M Date: Wed, 21 Oct 2015 14:55:21 +0100 Subject: [PATCH 088/165] rpi_display: add backlight driver and overlay Add a mailbox-driven backlight controller for the Raspberry Pi DSI touchscreen display. Requires updated GPU firmware to recognise the mailbox request. Signed-off-by: Gordon Hollingworth --- drivers/video/backlight/Kconfig | 6 ++ drivers/video/backlight/Makefile | 1 + drivers/video/backlight/rpi_backlight.c | 119 ++++++++++++++++++++++++++++++++ 3 files changed, 126 insertions(+) create mode 100644 drivers/video/backlight/rpi_backlight.c diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index 5ffa4b4e26c0e874d3f63068456b3d72d8b4beb5..c3023ab052b477dde522a262a360ec312e94de22 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -265,6 +265,12 @@ config BACKLIGHT_PWM If you have a LCD backlight adjustable by PWM, say Y to enable this driver. +config BACKLIGHT_RPI + tristate "Raspberry Pi display firmware driven backlight" + help + If you have the Raspberry Pi DSI touchscreen display, say Y to + enable the mailbox-controlled backlight driver. + config BACKLIGHT_DA903X tristate "Backlight Driver for DA9030/DA9034 using WLED" depends on PMIC_DA903X diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile index 16ec534cff3044209adbae3495c19d97fee3ef73..00eff87fb3391300e78f055fa05d3b9647fa053d 100644 --- a/drivers/video/backlight/Makefile +++ b/drivers/video/backlight/Makefile @@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o obj-$(CONFIG_BACKLIGHT_PM8941_WLED) += pm8941-wled.o obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o +obj-$(CONFIG_BACKLIGHT_RPI) += rpi_backlight.o obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o diff --git a/drivers/video/backlight/rpi_backlight.c b/drivers/video/backlight/rpi_backlight.c new file mode 100644 index 0000000000000000000000000000000000000000..14a0d9b037395497c1fdae2961feccd509fcbaad --- /dev/null +++ b/drivers/video/backlight/rpi_backlight.c @@ -0,0 +1,119 @@ +/* + * rpi_bl.c - Backlight controller through VPU + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct rpi_backlight { + struct device *dev; + struct device *fbdev; + struct rpi_firmware *fw; +}; + +static int rpi_backlight_update_status(struct backlight_device *bl) +{ + struct rpi_backlight *gbl = bl_get_data(bl); + int brightness = bl->props.brightness; + int ret; + + if (bl->props.power != FB_BLANK_UNBLANK || + bl->props.fb_blank != FB_BLANK_UNBLANK || + bl->props.state & (BL_CORE_SUSPENDED | BL_CORE_FBBLANK)) + brightness = 0; + + ret = rpi_firmware_property(gbl->fw, + RPI_FIRMWARE_FRAMEBUFFER_SET_BACKLIGHT, + &brightness, sizeof(brightness)); + if (ret) { + dev_err(gbl->dev, "Failed to set brightness\n"); + return ret; + } + + if (brightness < 0) { + dev_err(gbl->dev, "Backlight change failed\n"); + return -EAGAIN; + } + + return 0; +} + +static const struct backlight_ops rpi_backlight_ops = { + .options = BL_CORE_SUSPENDRESUME, + .update_status = rpi_backlight_update_status, +}; + +static int rpi_backlight_probe(struct platform_device *pdev) +{ + struct backlight_properties props; + struct backlight_device *bl; + struct rpi_backlight *gbl; + struct device_node *fw_node; + + gbl = devm_kzalloc(&pdev->dev, sizeof(*gbl), GFP_KERNEL); + if (gbl == NULL) + return -ENOMEM; + + gbl->dev = &pdev->dev; + + fw_node = of_parse_phandle(pdev->dev.of_node, "firmware", 0); + if (!fw_node) { + dev_err(&pdev->dev, "Missing firmware node\n"); + return -ENOENT; + } + + gbl->fw = rpi_firmware_get(fw_node); + if (!gbl->fw) + return -EPROBE_DEFER; + + memset(&props, 0, sizeof(props)); + props.type = BACKLIGHT_RAW; + props.max_brightness = 255; + bl = devm_backlight_device_register(&pdev->dev, dev_name(&pdev->dev), + &pdev->dev, gbl, &rpi_backlight_ops, + &props); + if (IS_ERR(bl)) { + dev_err(&pdev->dev, "failed to register backlight\n"); + return PTR_ERR(bl); + } + + bl->props.brightness = 255; + backlight_update_status(bl); + + platform_set_drvdata(pdev, bl); + return 0; +} + +static const struct of_device_id rpi_backlight_of_match[] = { + { .compatible = "raspberrypi,rpi-backlight" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, rpi_backlight_of_match); + +static struct platform_driver rpi_backlight_driver = { + .driver = { + .name = "rpi-backlight", + .of_match_table = of_match_ptr(rpi_backlight_of_match), + }, + .probe = rpi_backlight_probe, +}; + +module_platform_driver(rpi_backlight_driver); + +MODULE_AUTHOR("Gordon Hollingworth "); +MODULE_DESCRIPTION("Raspberry Pi mailbox based Backlight Driver"); +MODULE_LICENSE("GPL"); From 0fb6a814bc3b9507464eb8a046adf37a30debc3e Mon Sep 17 00:00:00 2001 From: popcornmix Date: Tue, 23 Feb 2016 19:56:04 +0000 Subject: [PATCH 089/165] bcm2835-virtgpio: Virtual GPIO driver Add a virtual GPIO driver that uses the firmware mailbox interface to request that the VPU toggles LEDs. --- drivers/gpio/Kconfig | 6 + drivers/gpio/Makefile | 1 + drivers/gpio/gpio-bcm-virt.c | 214 +++++++++++++++++++++++++++++ include/soc/bcm2835/raspberrypi-firmware.h | 1 + 4 files changed, 222 insertions(+) create mode 100644 drivers/gpio/gpio-bcm-virt.c diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 05043071fc9805e1b9595090450f405ab28c22db..11f6e8466018783f8478a4f4e0e9050aae5d62f0 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -134,6 +134,12 @@ config GPIO_BCM_KONA help Turn on GPIO support for Broadcom "Kona" chips. +config GPIO_BCM_VIRT + bool "Broadcom Virt GPIO" + depends on OF_GPIO && RASPBERRYPI_FIRMWARE && (ARCH_BCM2835 || COMPILE_TEST) + help + Turn on virtual GPIO support for Broadcom BCM283X chips. + config GPIO_BRCMSTB tristate "BRCMSTB GPIO support" default y if (ARCH_BRCMSTB || BMIPS_GENERIC) diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index becb96c724fef59bf770c89268771c10acf6e48f..fcdfb8e3c19e1c74e4e4c1a8881955fcbcd6a659 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -33,6 +33,7 @@ obj-$(CONFIG_GPIO_ATH79) += gpio-ath79.o obj-$(CONFIG_GPIO_ASPEED) += gpio-aspeed.o obj-$(CONFIG_GPIO_AXP209) += gpio-axp209.o obj-$(CONFIG_GPIO_BCM_KONA) += gpio-bcm-kona.o +obj-$(CONFIG_GPIO_BCM_VIRT) += gpio-bcm-virt.o obj-$(CONFIG_GPIO_BRCMSTB) += gpio-brcmstb.o obj-$(CONFIG_GPIO_BT8XX) += gpio-bt8xx.o obj-$(CONFIG_GPIO_CLPS711X) += gpio-clps711x.o diff --git a/drivers/gpio/gpio-bcm-virt.c b/drivers/gpio/gpio-bcm-virt.c new file mode 100644 index 0000000000000000000000000000000000000000..c3725546def9d4a6264fbb1f6b9814d02b50e34e --- /dev/null +++ b/drivers/gpio/gpio-bcm-virt.c @@ -0,0 +1,214 @@ +/* + * brcmvirt GPIO driver + * + * Copyright (C) 2012,2013 Dom Cobley + * Based on gpio-clps711x.c by Alexander Shiyan + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include +#include +#include +#include +#include +#include + +#define MODULE_NAME "brcmvirt-gpio" +#define NUM_GPIO 2 + +struct brcmvirt_gpio { + struct gpio_chip gc; + u32 __iomem *ts_base; + /* two packed 16-bit counts of enabled and disables + Allows host to detect a brief enable that was missed */ + u32 enables_disables[NUM_GPIO]; + dma_addr_t bus_addr; +}; + +static int brcmvirt_gpio_dir_in(struct gpio_chip *gc, unsigned off) +{ + struct brcmvirt_gpio *gpio; + gpio = container_of(gc, struct brcmvirt_gpio, gc); + return -EINVAL; +} + +static int brcmvirt_gpio_dir_out(struct gpio_chip *gc, unsigned off, int val) +{ + struct brcmvirt_gpio *gpio; + gpio = container_of(gc, struct brcmvirt_gpio, gc); + return 0; +} + +static int brcmvirt_gpio_get(struct gpio_chip *gc, unsigned off) +{ + struct brcmvirt_gpio *gpio; + unsigned v; + gpio = container_of(gc, struct brcmvirt_gpio, gc); + v = readl(gpio->ts_base + off); + return (v >> off) & 1; +} + +static void brcmvirt_gpio_set(struct gpio_chip *gc, unsigned off, int val) +{ + struct brcmvirt_gpio *gpio; + u16 enables, disables; + s16 diff; + bool lit; + gpio = container_of(gc, struct brcmvirt_gpio, gc); + enables = gpio->enables_disables[off] >> 16; + disables = gpio->enables_disables[off] >> 0; + diff = (s16)(enables - disables); + lit = diff > 0; + if ((val && lit) || (!val && !lit)) + return; + if (val) + enables++; + else + disables++; + diff = (s16)(enables - disables); + BUG_ON(diff != 0 && diff != 1); + gpio->enables_disables[off] = (enables << 16) | (disables << 0); + writel(gpio->enables_disables[off], gpio->ts_base + off); +} + +static int brcmvirt_gpio_probe(struct platform_device *pdev) +{ + int err = 0; + struct device *dev = &pdev->dev; + struct device_node *np = dev->of_node; + struct device_node *fw_node; + struct rpi_firmware *fw; + struct brcmvirt_gpio *ucb; + u32 gpiovirtbuf; + + fw_node = of_parse_phandle(np, "firmware", 0); + if (!fw_node) { + dev_err(dev, "Missing firmware node\n"); + return -ENOENT; + } + + fw = rpi_firmware_get(fw_node); + if (!fw) + return -EPROBE_DEFER; + + ucb = devm_kzalloc(dev, sizeof *ucb, GFP_KERNEL); + if (!ucb) { + err = -EINVAL; + goto out; + } + + ucb->ts_base = dma_zalloc_coherent(dev, PAGE_SIZE, &ucb->bus_addr, GFP_KERNEL); + if (!ucb->ts_base) { + pr_err("[%s]: failed to dma_alloc_coherent(%ld)\n", + __func__, PAGE_SIZE); + err = -ENOMEM; + goto out; + } + + gpiovirtbuf = (u32)ucb->bus_addr; + err = rpi_firmware_property(fw, RPI_FIRMWARE_FRAMEBUFFER_SET_GPIOVIRTBUF, + &gpiovirtbuf, sizeof(gpiovirtbuf)); + + if (err || gpiovirtbuf != 0) { + dev_warn(dev, "Failed to set gpiovirtbuf, trying to get err:%x\n", err); + dma_free_coherent(dev, PAGE_SIZE, ucb->ts_base, ucb->bus_addr); + ucb->ts_base = 0; + ucb->bus_addr = 0; + } + + if (!ucb->ts_base) { + err = rpi_firmware_property(fw, RPI_FIRMWARE_FRAMEBUFFER_GET_GPIOVIRTBUF, + &gpiovirtbuf, sizeof(gpiovirtbuf)); + + if (err) { + dev_err(dev, "Failed to get gpiovirtbuf\n"); + goto out; + } + + if (!gpiovirtbuf) { + dev_err(dev, "No virtgpio buffer\n"); + err = -ENOENT; + goto out; + } + + // mmap the physical memory + gpiovirtbuf &= ~0xc0000000; + ucb->ts_base = ioremap(gpiovirtbuf, 4096); + if (ucb->ts_base == NULL) { + dev_err(dev, "Failed to map physical address\n"); + err = -ENOENT; + goto out; + } + ucb->bus_addr = 0; + } + ucb->gc.label = MODULE_NAME; + ucb->gc.owner = THIS_MODULE; + //ucb->gc.dev = dev; + ucb->gc.of_node = np; + ucb->gc.base = 100; + ucb->gc.ngpio = NUM_GPIO; + + ucb->gc.direction_input = brcmvirt_gpio_dir_in; + ucb->gc.direction_output = brcmvirt_gpio_dir_out; + ucb->gc.get = brcmvirt_gpio_get; + ucb->gc.set = brcmvirt_gpio_set; + ucb->gc.can_sleep = true; + + err = gpiochip_add(&ucb->gc); + if (err) + goto out; + + platform_set_drvdata(pdev, ucb); + + return 0; +out: + if (ucb->bus_addr) { + dma_free_coherent(dev, PAGE_SIZE, ucb->ts_base, ucb->bus_addr); + ucb->bus_addr = 0; + ucb->ts_base = NULL; + } else if (ucb->ts_base) { + iounmap(ucb->ts_base); + ucb->ts_base = NULL; + } + return err; +} + +static int brcmvirt_gpio_remove(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + int err = 0; + struct brcmvirt_gpio *ucb = platform_get_drvdata(pdev); + + gpiochip_remove(&ucb->gc); + if (ucb->bus_addr) + dma_free_coherent(dev, PAGE_SIZE, ucb->ts_base, ucb->bus_addr); + else if (ucb->ts_base) + iounmap(ucb->ts_base); + return err; +} + +static const struct of_device_id __maybe_unused brcmvirt_gpio_ids[] = { + { .compatible = "brcm,bcm2835-virtgpio" }, + { } +}; +MODULE_DEVICE_TABLE(of, brcmvirt_gpio_ids); + +static struct platform_driver brcmvirt_gpio_driver = { + .driver = { + .name = MODULE_NAME, + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(brcmvirt_gpio_ids), + }, + .probe = brcmvirt_gpio_probe, + .remove = brcmvirt_gpio_remove, +}; +module_platform_driver(brcmvirt_gpio_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Dom Cobley "); +MODULE_DESCRIPTION("brcmvirt GPIO driver"); +MODULE_ALIAS("platform:brcmvirt-gpio"); diff --git a/include/soc/bcm2835/raspberrypi-firmware.h b/include/soc/bcm2835/raspberrypi-firmware.h index 4a3d79d3b48eb483a4e4bf498f617515e3ad158f..5f34e1257117fb48013c9926a8a223d64a598ab7 100644 --- a/include/soc/bcm2835/raspberrypi-firmware.h +++ b/include/soc/bcm2835/raspberrypi-firmware.h @@ -116,6 +116,7 @@ enum rpi_firmware_property_tag { RPI_FIRMWARE_FRAMEBUFFER_SET_OVERSCAN = 0x0004800a, RPI_FIRMWARE_FRAMEBUFFER_SET_PALETTE = 0x0004800b, RPI_FIRMWARE_FRAMEBUFFER_SET_TOUCHBUF = 0x0004801f, + RPI_FIRMWARE_FRAMEBUFFER_SET_GPIOVIRTBUF = 0x00048020, RPI_FIRMWARE_FRAMEBUFFER_SET_VSYNC = 0x0004800e, RPI_FIRMWARE_FRAMEBUFFER_SET_BACKLIGHT = 0x0004800f, From 0fa4ceb300a845b20a199b3dae01047477736c13 Mon Sep 17 00:00:00 2001 From: Dave Stevenson Date: Mon, 20 Feb 2017 17:01:21 +0000 Subject: [PATCH 090/165] bcm2835-gpio-exp: Driver for GPIO expander via mailbox service Pi3 and Compute Module 3 have a GPIO expander that the VPU communicates with. There is a mailbox service that now allows control of this expander, so add a kernel driver that can make use of it. Pwr_led node added to device-tree for Pi3. Signed-off-by: Dave Stevenson --- drivers/gpio/Kconfig | 7 + drivers/gpio/Makefile | 1 + drivers/gpio/gpio-bcm-exp.c | 256 +++++++++++++++++++++++++++++ include/soc/bcm2835/raspberrypi-firmware.h | 4 + 4 files changed, 268 insertions(+) create mode 100644 drivers/gpio/gpio-bcm-exp.c diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 11f6e8466018783f8478a4f4e0e9050aae5d62f0..2c0028656eda108b16b0d51820c3cee74121f5f9 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -128,6 +128,13 @@ config GPIO_AXP209 help Say yes to enable GPIO support for the AXP209 PMIC +config GPIO_BCM_EXP + bool "Broadcom Exp GPIO" + depends on OF_GPIO && RASPBERRYPI_FIRMWARE && (ARCH_BCM2835 || COMPILE_TEST) + help + Turn on GPIO support for Broadcom chips using the firmware mailbox + to communicate with VideoCore on BCM283x chips. + config GPIO_BCM_KONA bool "Broadcom Kona GPIO" depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST) diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index fcdfb8e3c19e1c74e4e4c1a8881955fcbcd6a659..a376f2b1012a3c1236094c8e9b1f5a3f6ed599fe 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -32,6 +32,7 @@ obj-$(CONFIG_GPIO_ARIZONA) += gpio-arizona.o obj-$(CONFIG_GPIO_ATH79) += gpio-ath79.o obj-$(CONFIG_GPIO_ASPEED) += gpio-aspeed.o obj-$(CONFIG_GPIO_AXP209) += gpio-axp209.o +obj-$(CONFIG_GPIO_BCM_EXP) += gpio-bcm-exp.o obj-$(CONFIG_GPIO_BCM_KONA) += gpio-bcm-kona.o obj-$(CONFIG_GPIO_BCM_VIRT) += gpio-bcm-virt.o obj-$(CONFIG_GPIO_BRCMSTB) += gpio-brcmstb.o diff --git a/drivers/gpio/gpio-bcm-exp.c b/drivers/gpio/gpio-bcm-exp.c new file mode 100644 index 0000000000000000000000000000000000000000..681a91492d4c33bdfd42416e069218e8611cc4d9 --- /dev/null +++ b/drivers/gpio/gpio-bcm-exp.c @@ -0,0 +1,256 @@ +/* + * Broadcom expander GPIO driver + * + * Uses the firmware mailbox service to communicate with the + * GPIO expander on the VPU. + * + * Copyright (C) 2017 Raspberry Pi Trading Ltd. + * + * Author: Dave Stevenson + * Based on gpio-bcm-virt.c by Dom Cobley + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include +#include +#include +#include +#include +#include + +#define MODULE_NAME "brcmexp-gpio" +#define NUM_GPIO 8 + +struct brcmexp_gpio { + struct gpio_chip gc; + struct device *dev; + struct rpi_firmware *fw; +}; + +struct gpio_set_config { + u32 gpio, direction, polarity, term_en, term_pull_up, state; +}; + +struct gpio_get_config { + u32 gpio, direction, polarity, term_en, term_pull_up; +}; + +struct gpio_get_set_state { + u32 gpio, state; +}; + +static int brcmexp_gpio_get_polarity(struct gpio_chip *gc, unsigned int off) +{ + struct brcmexp_gpio *gpio; + struct gpio_get_config get; + int ret; + + gpio = container_of(gc, struct brcmexp_gpio, gc); + + get.gpio = off + gpio->gc.base; /* GPIO to update */ + + ret = rpi_firmware_property(gpio->fw, RPI_FIRMWARE_GET_GPIO_CONFIG, + &get, sizeof(get)); + if (ret) { + dev_err(gpio->dev, + "Failed to get GPIO %u config (%d)\n", off, ret); + return ret; + } + return get.polarity; +} + +static int brcmexp_gpio_dir_in(struct gpio_chip *gc, unsigned int off) +{ + struct brcmexp_gpio *gpio; + struct gpio_set_config set_in; + int ret; + + gpio = container_of(gc, struct brcmexp_gpio, gc); + + set_in.gpio = off + gpio->gc.base; /* GPIO to update */ + set_in.direction = 0; /* Input */ + set_in.polarity = brcmexp_gpio_get_polarity(gc, off); + /* Retain existing setting */ + set_in.term_en = 0; /* termination disabled */ + set_in.term_pull_up = 0; /* n/a as termination disabled */ + set_in.state = 0; /* n/a as configured as an input */ + + ret = rpi_firmware_property(gpio->fw, RPI_FIRMWARE_SET_GPIO_CONFIG, + &set_in, sizeof(set_in)); + if (ret) { + dev_err(gpio->dev, + "Failed to set GPIO %u to input (%d)\n", + off, ret); + return ret; + } + return 0; +} + +static int brcmexp_gpio_dir_out(struct gpio_chip *gc, unsigned int off, int val) +{ + struct brcmexp_gpio *gpio; + struct gpio_set_config set_out; + int ret; + + gpio = container_of(gc, struct brcmexp_gpio, gc); + + set_out.gpio = off + gpio->gc.base; /* GPIO to update */ + set_out.direction = 1; /* Output */ + set_out.polarity = brcmexp_gpio_get_polarity(gc, off); + /* Retain existing setting */ + set_out.term_en = 0; /* n/a as an output */ + set_out.term_pull_up = 0; /* n/a as termination disabled */ + set_out.state = val; /* Output state */ + + ret = rpi_firmware_property(gpio->fw, RPI_FIRMWARE_SET_GPIO_CONFIG, + &set_out, sizeof(set_out)); + if (ret) { + dev_err(gpio->dev, + "Failed to set GPIO %u to output (%d)\n", off, ret); + return ret; + } + return 0; +} + +static int brcmexp_gpio_get_direction(struct gpio_chip *gc, unsigned int off) +{ + struct brcmexp_gpio *gpio; + struct gpio_get_config get; + int ret; + + gpio = container_of(gc, struct brcmexp_gpio, gc); + + get.gpio = off + gpio->gc.base; /* GPIO to update */ + + ret = rpi_firmware_property(gpio->fw, RPI_FIRMWARE_GET_GPIO_CONFIG, + &get, sizeof(get)); + if (ret) { + dev_err(gpio->dev, + "Failed to get GPIO %u config (%d)\n", off, ret); + return ret; + } + return get.direction ? GPIOF_DIR_OUT : GPIOF_DIR_IN; +} + +static int brcmexp_gpio_get(struct gpio_chip *gc, unsigned int off) +{ + struct brcmexp_gpio *gpio; + struct gpio_get_set_state get; + int ret; + + gpio = container_of(gc, struct brcmexp_gpio, gc); + + get.gpio = off + gpio->gc.base; /* GPIO to update */ + get.state = 0; /* storage for returned value */ + + ret = rpi_firmware_property(gpio->fw, RPI_FIRMWARE_GET_GPIO_STATE, + &get, sizeof(get)); + if (ret) { + dev_err(gpio->dev, + "Failed to get GPIO %u state (%d)\n", off, ret); + return ret; + } + return !!get.state; +} + +static void brcmexp_gpio_set(struct gpio_chip *gc, unsigned int off, int val) +{ + struct brcmexp_gpio *gpio; + struct gpio_get_set_state set; + int ret; + + gpio = container_of(gc, struct brcmexp_gpio, gc); + + off += gpio->gc.base; + + set.gpio = off + gpio->gc.base; /* GPIO to update */ + set.state = val; /* Output state */ + + ret = rpi_firmware_property(gpio->fw, RPI_FIRMWARE_SET_GPIO_STATE, + &set, sizeof(set)); + if (ret) + dev_err(gpio->dev, + "Failed to set GPIO %u state (%d)\n", off, ret); +} + +static int brcmexp_gpio_probe(struct platform_device *pdev) +{ + int err = 0; + struct device *dev = &pdev->dev; + struct device_node *np = dev->of_node; + struct device_node *fw_node; + struct rpi_firmware *fw; + struct brcmexp_gpio *ucb; + + fw_node = of_parse_phandle(np, "firmware", 0); + if (!fw_node) { + dev_err(dev, "Missing firmware node\n"); + return -ENOENT; + } + + fw = rpi_firmware_get(fw_node); + if (!fw) + return -EPROBE_DEFER; + + ucb = devm_kzalloc(dev, sizeof(*ucb), GFP_KERNEL); + if (!ucb) + return -EINVAL; + + ucb->fw = fw; + ucb->dev = dev; + ucb->gc.label = MODULE_NAME; + ucb->gc.owner = THIS_MODULE; + ucb->gc.of_node = np; + ucb->gc.base = 128; + ucb->gc.ngpio = NUM_GPIO; + + ucb->gc.direction_input = brcmexp_gpio_dir_in; + ucb->gc.direction_output = brcmexp_gpio_dir_out; + ucb->gc.get_direction = brcmexp_gpio_get_direction; + ucb->gc.get = brcmexp_gpio_get; + ucb->gc.set = brcmexp_gpio_set; + ucb->gc.can_sleep = true; + + err = gpiochip_add(&ucb->gc); + if (err) + return err; + + platform_set_drvdata(pdev, ucb); + + return 0; +} + +static int brcmexp_gpio_remove(struct platform_device *pdev) +{ + struct brcmexp_gpio *ucb = platform_get_drvdata(pdev); + + gpiochip_remove(&ucb->gc); + + return 0; +} + +static const struct of_device_id __maybe_unused brcmexp_gpio_ids[] = { + { .compatible = "brcm,bcm2835-expgpio" }, + { } +}; +MODULE_DEVICE_TABLE(of, brcmexp_gpio_ids); + +static struct platform_driver brcmexp_gpio_driver = { + .driver = { + .name = MODULE_NAME, + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(brcmexp_gpio_ids), + }, + .probe = brcmexp_gpio_probe, + .remove = brcmexp_gpio_remove, +}; +module_platform_driver(brcmexp_gpio_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Dave Stevenson "); +MODULE_DESCRIPTION("brcm-exp GPIO driver"); +MODULE_ALIAS("platform:brcmexp-gpio"); diff --git a/include/soc/bcm2835/raspberrypi-firmware.h b/include/soc/bcm2835/raspberrypi-firmware.h index 5f34e1257117fb48013c9926a8a223d64a598ab7..c819c21b0158a59c1308882e5a40e3f3fe73cbdf 100644 --- a/include/soc/bcm2835/raspberrypi-firmware.h +++ b/include/soc/bcm2835/raspberrypi-firmware.h @@ -81,7 +81,11 @@ enum rpi_firmware_property_tag { RPI_FIRMWARE_SET_TURBO = 0x00038009, RPI_FIRMWARE_SET_CUSTOMER_OTP = 0x00038021, RPI_FIRMWARE_SET_DOMAIN_STATE = 0x00038030, + RPI_FIRMWARE_GET_GPIO_STATE = 0x00030041, + RPI_FIRMWARE_SET_GPIO_STATE = 0x00038041, RPI_FIRMWARE_SET_SDHOST_CLOCK = 0x00038042, + RPI_FIRMWARE_GET_GPIO_CONFIG = 0x00030043, + RPI_FIRMWARE_SET_GPIO_CONFIG = 0x00038043, /* Dispmanx TAGS */ RPI_FIRMWARE_FRAMEBUFFER_ALLOCATE = 0x00040001, From d73039233e0664fa7d0207d2ad318891d3cb4872 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Tue, 23 Feb 2016 17:26:48 +0000 Subject: [PATCH 091/165] amba_pl011: Don't use DT aliases for numbering The pl011 driver looks for DT aliases of the form "serial", and if found uses as the device ID. This can cause /dev/ttyAMA0 to become /dev/ttyAMA1, which is confusing if the other serial port is provided by the 8250 driver which doesn't use the same logic. --- drivers/tty/serial/amba-pl011.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index f2503d862f3aee25396ef002ba69968896316779..a85e81245004e928fc52ec59044e151b7f183496 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -2582,7 +2582,12 @@ static int pl011_setup_port(struct device *dev, struct uart_amba_port *uap, if (IS_ERR(base)) return PTR_ERR(base); + /* Don't use DT serial aliases - it causes the device to + be renumbered to ttyAMA1 if it is the second serial port in the + system, even though the other one is ttyS0. The 8250 driver + doesn't use this logic, so always remains ttyS0. index = pl011_probe_dt_alias(index, dev); + */ uap->old_cr = 0; uap->port.dev = dev; From 8a8978e045b1b1a2553f467e461914348d9478c6 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Wed, 1 Mar 2017 16:07:39 +0000 Subject: [PATCH 092/165] amba_pl011: Round input clock up The UART clock is initialised to be as close to the requested frequency as possible without exceeding it. Now that there is a clock manager that returns the actual frequencies, an expected 48MHz clock is reported as 47999625. If the requested baudrate == requested clock/16, there is no headroom and the slight reduction in actual clock rate results in failure. Detect cases where it looks like a "round" clock was chosen and adjust the reported clock to match that "round" value. As the code comment says: /* * If increasing a clock by less than 0.1% changes it * from ..999.. to ..000.., round up. */ Signed-off-by: Phil Elwell --- drivers/tty/serial/amba-pl011.c | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index a85e81245004e928fc52ec59044e151b7f183496..380d2c2e19ae3720924e906261b487adcf39835c 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -1674,6 +1674,23 @@ static void pl011_put_poll_char(struct uart_port *port, #endif /* CONFIG_CONSOLE_POLL */ +unsigned long pl011_clk_round(unsigned long clk) +{ + unsigned long scaler; + + /* + * If increasing a clock by less than 0.1% changes it + * from ..999.. to ..000.., round up. + */ + scaler = 1; + while (scaler * 100000 < clk) + scaler *= 10; + if ((clk + scaler - 1)/scaler % 1000 == 0) + clk = (clk/scaler + 1) * scaler; + + return clk; +} + static int pl011_hwinit(struct uart_port *port) { struct uart_amba_port *uap = @@ -1690,7 +1707,7 @@ static int pl011_hwinit(struct uart_port *port) if (retval) return retval; - uap->port.uartclk = clk_get_rate(uap->clk); + uap->port.uartclk = pl011_clk_round(clk_get_rate(uap->clk)); /* Clear pending error and receive interrupts */ pl011_write(UART011_OEIS | UART011_BEIS | UART011_PEIS | @@ -2330,7 +2347,7 @@ static int __init pl011_console_setup(struct console *co, char *options) plat->init(); } - uap->port.uartclk = clk_get_rate(uap->clk); + uap->port.uartclk = pl011_clk_round(clk_get_rate(uap->clk)); if (uap->vendor->fixed_options) { baud = uap->fixed_baud; @@ -2513,6 +2530,7 @@ static struct uart_driver amba_reg = { .cons = AMBA_CONSOLE, }; +#if 0 static int pl011_probe_dt_alias(int index, struct device *dev) { struct device_node *np; @@ -2544,6 +2562,7 @@ static int pl011_probe_dt_alias(int index, struct device *dev) return ret; } +#endif /* unregisters the driver also if no more ports are left */ static void pl011_unregister_port(struct uart_amba_port *uap) From 74c653d482da42e6aba7f99cc823b2d01dc02aaa Mon Sep 17 00:00:00 2001 From: Pantelis Antoniou Date: Wed, 3 Dec 2014 13:23:28 +0200 Subject: [PATCH 093/165] OF: DT-Overlay configfs interface This is a port of Pantelis Antoniou's v3 port that makes use of the new upstreamed configfs support for binary attributes. Original commit message: Add a runtime interface to using configfs for generic device tree overlay usage. With it its possible to use device tree overlays without having to use a per-platform overlay manager. Please see Documentation/devicetree/configfs-overlays.txt for more info. Changes since v2: - Removed ifdef CONFIG_OF_OVERLAY (since for now it's required) - Created a documentation entry - Slight rewording in Kconfig Changes since v1: - of_resolve() -> of_resolve_phandles(). Originally-signed-off-by: Pantelis Antoniou Signed-off-by: Phil Elwell DT configfs: Fix build errors on other platforms Signed-off-by: Phil Elwell DT configfs: fix build error There is an error when compiling rpi-4.6.y branch: CC drivers/of/configfs.o drivers/of/configfs.c:291:21: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types] .default_groups = of_cfs_def_groups, ^ drivers/of/configfs.c:291:21: note: (near initialization for 'of_cfs_subsys.su_group.default_groups.next') The .default_groups is linked list since commit 1ae1602de028acaa42a0f6ff18d19756f8e825c6. This commit uses configfs_add_default_group to fix this problem. Signed-off-by: Slawomir Stepien --- Documentation/devicetree/configfs-overlays.txt | 31 +++ drivers/of/Kconfig | 7 + drivers/of/Makefile | 1 + drivers/of/configfs.c | 311 +++++++++++++++++++++++++ 4 files changed, 350 insertions(+) create mode 100644 Documentation/devicetree/configfs-overlays.txt create mode 100644 drivers/of/configfs.c diff --git a/Documentation/devicetree/configfs-overlays.txt b/Documentation/devicetree/configfs-overlays.txt new file mode 100644 index 0000000000000000000000000000000000000000..5fa43e0643072c7963daddc18cec7772910378ad --- /dev/null +++ b/Documentation/devicetree/configfs-overlays.txt @@ -0,0 +1,31 @@ +Howto use the configfs overlay interface. + +A device-tree configfs entry is created in /config/device-tree/overlays +and and it is manipulated using standard file system I/O. +Note that this is a debug level interface, for use by developers and +not necessarily something accessed by normal users due to the +security implications of having direct access to the kernel's device tree. + +* To create an overlay you mkdir the directory: + + # mkdir /config/device-tree/overlays/foo + +* Either you echo the overlay firmware file to the path property file. + + # echo foo.dtbo >/config/device-tree/overlays/foo/path + +* Or you cat the contents of the overlay to the dtbo file + + # cat foo.dtbo >/config/device-tree/overlays/foo/dtbo + +The overlay file will be applied, and devices will be created/destroyed +as required. + +To remove it simply rmdir the directory. + + # rmdir /config/device-tree/overlays/foo + +The rationalle of the dual interface (firmware & direct copy) is that each is +better suited to different use patterns. The firmware interface is what's +intended to be used by hardware managers in the kernel, while the copy interface +make sense for developers (since it avoids problems with namespaces). diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig index ba7b034b2b91c94afb1b7135cdee7fc3d6955828..de0da10d66e6cdc6eedc4d36cf247370627f83f4 100644 --- a/drivers/of/Kconfig +++ b/drivers/of/Kconfig @@ -112,4 +112,11 @@ config OF_OVERLAY config OF_NUMA bool +config OF_CONFIGFS + bool "Device Tree Overlay ConfigFS interface" + select CONFIGFS_FS + select OF_OVERLAY + help + Enable a simple user-space driven DT overlay interface. + endif # OF diff --git a/drivers/of/Makefile b/drivers/of/Makefile index d7efd9d458aab4554139e93c72a1688aa0eeef6a..aa5ef9dd1fedc14d4ae2d363818fc160df51bad9 100644 --- a/drivers/of/Makefile +++ b/drivers/of/Makefile @@ -1,4 +1,5 @@ obj-y = base.o device.o platform.o +obj-$(CONFIG_OF_CONFIGFS) += configfs.o obj-$(CONFIG_OF_DYNAMIC) += dynamic.o obj-$(CONFIG_OF_FLATTREE) += fdt.o obj-$(CONFIG_OF_EARLY_FLATTREE) += fdt_address.o diff --git a/drivers/of/configfs.c b/drivers/of/configfs.c new file mode 100644 index 0000000000000000000000000000000000000000..0037e6868a6cda8706c88194c6a4454b6ea6cad7 --- /dev/null +++ b/drivers/of/configfs.c @@ -0,0 +1,311 @@ +/* + * Configfs entries for device-tree + * + * Copyright (C) 2013 - Pantelis Antoniou + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "of_private.h" + +struct cfs_overlay_item { + struct config_item item; + + char path[PATH_MAX]; + + const struct firmware *fw; + struct device_node *overlay; + int ov_id; + + void *dtbo; + int dtbo_size; +}; + +static int create_overlay(struct cfs_overlay_item *overlay, void *blob) +{ + int err; + + /* unflatten the tree */ + of_fdt_unflatten_tree(blob, NULL, &overlay->overlay); + if (overlay->overlay == NULL) { + pr_err("%s: failed to unflatten tree\n", __func__); + err = -EINVAL; + goto out_err; + } + pr_debug("%s: unflattened OK\n", __func__); + + /* mark it as detached */ + of_node_set_flag(overlay->overlay, OF_DETACHED); + + /* perform resolution */ + err = of_resolve_phandles(overlay->overlay); + if (err != 0) { + pr_err("%s: Failed to resolve tree\n", __func__); + goto out_err; + } + pr_debug("%s: resolved OK\n", __func__); + + err = of_overlay_create(overlay->overlay); + if (err < 0) { + pr_err("%s: Failed to create overlay (err=%d)\n", + __func__, err); + goto out_err; + } + overlay->ov_id = err; + +out_err: + return err; +} + +static inline struct cfs_overlay_item *to_cfs_overlay_item( + struct config_item *item) +{ + return item ? container_of(item, struct cfs_overlay_item, item) : NULL; +} + +static ssize_t cfs_overlay_item_path_show(struct config_item *item, + char *page) +{ + struct cfs_overlay_item *overlay = to_cfs_overlay_item(item); + return sprintf(page, "%s\n", overlay->path); +} + +static ssize_t cfs_overlay_item_path_store(struct config_item *item, + const char *page, size_t count) +{ + struct cfs_overlay_item *overlay = to_cfs_overlay_item(item); + const char *p = page; + char *s; + int err; + + /* if it's set do not allow changes */ + if (overlay->path[0] != '\0' || overlay->dtbo_size > 0) + return -EPERM; + + /* copy to path buffer (and make sure it's always zero terminated */ + count = snprintf(overlay->path, sizeof(overlay->path) - 1, "%s", p); + overlay->path[sizeof(overlay->path) - 1] = '\0'; + + /* strip trailing newlines */ + s = overlay->path + strlen(overlay->path); + while (s > overlay->path && *--s == '\n') + *s = '\0'; + + pr_debug("%s: path is '%s'\n", __func__, overlay->path); + + err = request_firmware(&overlay->fw, overlay->path, NULL); + if (err != 0) + goto out_err; + + err = create_overlay(overlay, (void *)overlay->fw->data); + if (err != 0) + goto out_err; + + return count; + +out_err: + + release_firmware(overlay->fw); + overlay->fw = NULL; + + overlay->path[0] = '\0'; + return err; +} + +static ssize_t cfs_overlay_item_status_show(struct config_item *item, + char *page) +{ + struct cfs_overlay_item *overlay = to_cfs_overlay_item(item); + + return sprintf(page, "%s\n", + overlay->ov_id >= 0 ? "applied" : "unapplied"); +} + +CONFIGFS_ATTR(cfs_overlay_item_, path); +CONFIGFS_ATTR_RO(cfs_overlay_item_, status); + +static struct configfs_attribute *cfs_overlay_attrs[] = { + &cfs_overlay_item_attr_path, + &cfs_overlay_item_attr_status, + NULL, +}; + +ssize_t cfs_overlay_item_dtbo_read(struct config_item *item, + void *buf, size_t max_count) +{ + struct cfs_overlay_item *overlay = to_cfs_overlay_item(item); + + pr_debug("%s: buf=%p max_count=%zu\n", __func__, + buf, max_count); + + if (overlay->dtbo == NULL) + return 0; + + /* copy if buffer provided */ + if (buf != NULL) { + /* the buffer must be large enough */ + if (overlay->dtbo_size > max_count) + return -ENOSPC; + + memcpy(buf, overlay->dtbo, overlay->dtbo_size); + } + + return overlay->dtbo_size; +} + +ssize_t cfs_overlay_item_dtbo_write(struct config_item *item, + const void *buf, size_t count) +{ + struct cfs_overlay_item *overlay = to_cfs_overlay_item(item); + int err; + + /* if it's set do not allow changes */ + if (overlay->path[0] != '\0' || overlay->dtbo_size > 0) + return -EPERM; + + /* copy the contents */ + overlay->dtbo = kmemdup(buf, count, GFP_KERNEL); + if (overlay->dtbo == NULL) + return -ENOMEM; + + overlay->dtbo_size = count; + + err = create_overlay(overlay, overlay->dtbo); + if (err != 0) + goto out_err; + + return count; + +out_err: + kfree(overlay->dtbo); + overlay->dtbo = NULL; + overlay->dtbo_size = 0; + + return err; +} + +CONFIGFS_BIN_ATTR(cfs_overlay_item_, dtbo, NULL, SZ_1M); + +static struct configfs_bin_attribute *cfs_overlay_bin_attrs[] = { + &cfs_overlay_item_attr_dtbo, + NULL, +}; + +static void cfs_overlay_release(struct config_item *item) +{ + struct cfs_overlay_item *overlay = to_cfs_overlay_item(item); + + if (overlay->ov_id >= 0) + of_overlay_destroy(overlay->ov_id); + if (overlay->fw) + release_firmware(overlay->fw); + /* kfree with NULL is safe */ + kfree(overlay->dtbo); + kfree(overlay); +} + +static struct configfs_item_operations cfs_overlay_item_ops = { + .release = cfs_overlay_release, +}; + +static struct config_item_type cfs_overlay_type = { + .ct_item_ops = &cfs_overlay_item_ops, + .ct_attrs = cfs_overlay_attrs, + .ct_bin_attrs = cfs_overlay_bin_attrs, + .ct_owner = THIS_MODULE, +}; + +static struct config_item *cfs_overlay_group_make_item( + struct config_group *group, const char *name) +{ + struct cfs_overlay_item *overlay; + + overlay = kzalloc(sizeof(*overlay), GFP_KERNEL); + if (!overlay) + return ERR_PTR(-ENOMEM); + overlay->ov_id = -1; + + config_item_init_type_name(&overlay->item, name, &cfs_overlay_type); + return &overlay->item; +} + +static void cfs_overlay_group_drop_item(struct config_group *group, + struct config_item *item) +{ + struct cfs_overlay_item *overlay = to_cfs_overlay_item(item); + + config_item_put(&overlay->item); +} + +static struct configfs_group_operations overlays_ops = { + .make_item = cfs_overlay_group_make_item, + .drop_item = cfs_overlay_group_drop_item, +}; + +static struct config_item_type overlays_type = { + .ct_group_ops = &overlays_ops, + .ct_owner = THIS_MODULE, +}; + +static struct configfs_group_operations of_cfs_ops = { + /* empty - we don't allow anything to be created */ +}; + +static struct config_item_type of_cfs_type = { + .ct_group_ops = &of_cfs_ops, + .ct_owner = THIS_MODULE, +}; + +struct config_group of_cfs_overlay_group; + +static struct configfs_subsystem of_cfs_subsys = { + .su_group = { + .cg_item = { + .ci_namebuf = "device-tree", + .ci_type = &of_cfs_type, + }, + }, + .su_mutex = __MUTEX_INITIALIZER(of_cfs_subsys.su_mutex), +}; + +static int __init of_cfs_init(void) +{ + int ret; + + pr_info("%s\n", __func__); + + config_group_init(&of_cfs_subsys.su_group); + config_group_init_type_name(&of_cfs_overlay_group, "overlays", + &overlays_type); + configfs_add_default_group(&of_cfs_overlay_group, + &of_cfs_subsys.su_group); + + ret = configfs_register_subsystem(&of_cfs_subsys); + if (ret != 0) { + pr_err("%s: failed to register subsys\n", __func__); + goto out; + } + pr_info("%s: OK\n", __func__); +out: + return ret; +} +late_initcall(of_cfs_init); From effcd07f73d479a6511ee68707de719220e99823 Mon Sep 17 00:00:00 2001 From: Cheong2K Date: Fri, 26 Feb 2016 18:20:10 +0800 Subject: [PATCH 094/165] brcm: adds support for BCM43341 wifi brcmfmac: Disable power management Disable wireless power saving in the brcmfmac WLAN driver. This is a temporary measure until the connectivity loss resulting from power saving is resolved. Signed-off-by: Phil Elwell brcmfmac: Use original country code as a fallback Commit 73345fd212980d2e28a5c6d83801c903bd773680: brcmfmac: Configure country code using device specific settings prevents region codes from working on devices that lack a region code translation table. In the event of an absent table, preserve the old behaviour of using the provided code as-is. Signed-off-by: Phil Elwell brcmfmac: Plug memory leak in brcmf_fill_bss_param See: https://github.com/raspberrypi/linux/issues/1471 Signed-off-by: Phil Elwell brcmfmac: do not use internal roaming engine by default Some evidence of curing disconnects with this disabled, so make it a default. Can be overridden with module parameter roamoff=0 See: http://projectable.me/optimize-my-pi-wi-fi/ brcmfmac: Change stop_ap sequence Patch from Broadcom/Cypress to resolve a customer error Signed-off-by: Phil Elwell --- .../broadcom/brcm80211/brcmfmac/cfg80211.c | 31 ++++++++++++++++------ .../wireless/broadcom/brcm80211/brcmfmac/common.c | 2 +- .../wireless/broadcom/brcm80211/brcmfmac/sdio.c | 3 ++- 3 files changed, 26 insertions(+), 10 deletions(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c index 944b83cfc51978d06ccc82a9f23ce64472af3fc8..b285024b754c9a6eb915d4a7c9e09126e1ecbea0 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c @@ -2747,6 +2747,8 @@ brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev, * preference in cfg struct to apply this to * FW later while initializing the dongle */ + pr_info("power management disabled\n"); + enabled = false; cfg->pwr_save = enabled; if (!check_vif_up(ifp->vif)) { @@ -4655,12 +4657,15 @@ static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev) err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); if (err < 0) brcmf_err("BRCMF_C_DOWN error %d\n", err); - err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0); - if (err < 0) - brcmf_err("setting AP mode failed %d\n", err); + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 0); if (err < 0) brcmf_err("setting INFRA mode failed %d\n", err); + + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0); + if (err < 0) + brcmf_err("setting AP mode failed %d\n", err); + if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) brcmf_fil_iovar_int_set(ifp, "mbss", 0); brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY, @@ -6687,12 +6692,18 @@ static s32 brcmf_translate_country_code(struct brcmf_pub *drvr, char alpha2[2], struct brcmfmac_pd_cc *country_codes; struct brcmfmac_pd_cc_entry *cc; s32 found_index; + char ccode[BRCMF_COUNTRY_BUF_SZ]; + int rev; int i; + memcpy(ccode, alpha2, sizeof(ccode)); + rev = -1; + country_codes = drvr->settings->country_codes; if (!country_codes) { - brcmf_dbg(TRACE, "No country codes configured for device\n"); - return -EINVAL; + brcmf_dbg(TRACE, "No country codes configured for device" + " - use requested value\n"); + goto use_input_value; } if ((alpha2[0] == ccreq->country_abbrev[0]) && @@ -6716,10 +6727,14 @@ static s32 brcmf_translate_country_code(struct brcmf_pub *drvr, char alpha2[2], brcmf_dbg(TRACE, "No country code match found\n"); return -EINVAL; } - memset(ccreq, 0, sizeof(*ccreq)); - ccreq->rev = cpu_to_le32(country_codes->table[found_index].rev); - memcpy(ccreq->ccode, country_codes->table[found_index].cc, + rev = country_codes->table[found_index].rev; + memcpy(ccode, country_codes->table[found_index].cc, BRCMF_COUNTRY_BUF_SZ); + +use_input_value: + memset(ccreq, 0, sizeof(*ccreq)); + ccreq->rev = cpu_to_le32(rev); + memcpy(ccreq->ccode, ccode, sizeof(ccode)); ccreq->country_abbrev[0] = alpha2[0]; ccreq->country_abbrev[1] = alpha2[1]; ccreq->country_abbrev[2] = 0; diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c index 33b133f7e63aad3b5a6bb14018fd461ec4fb90c6..6221b046bca44211e2dfac24119097f7ac09e829 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c @@ -69,7 +69,7 @@ static int brcmf_fcmode; module_param_named(fcmode, brcmf_fcmode, int, 0); MODULE_PARM_DESC(fcmode, "Mode of firmware signalled flow control"); -static int brcmf_roamoff; +static int brcmf_roamoff = 1; module_param_named(roamoff, brcmf_roamoff, int, S_IRUSR); MODULE_PARM_DESC(roamoff, "Do not use internal roaming engine"); diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c index 65689469c5a12e2fcfd6123ca584944da79ec184..4886dc29ad36705210bed20757ce09edadbd4262 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c @@ -604,6 +604,7 @@ BRCMF_FW_NVRAM_DEF(4329, "brcmfmac4329-sdio.bin", "brcmfmac4329-sdio.txt"); BRCMF_FW_NVRAM_DEF(4330, "brcmfmac4330-sdio.bin", "brcmfmac4330-sdio.txt"); BRCMF_FW_NVRAM_DEF(4334, "brcmfmac4334-sdio.bin", "brcmfmac4334-sdio.txt"); BRCMF_FW_NVRAM_DEF(43340, "brcmfmac43340-sdio.bin", "brcmfmac43340-sdio.txt"); +BRCMF_FW_NVRAM_DEF(43341, "brcmfmac43341-sdio.bin", "brcmfmac43341-sdio.txt"); BRCMF_FW_NVRAM_DEF(4335, "brcmfmac4335-sdio.bin", "brcmfmac4335-sdio.txt"); BRCMF_FW_NVRAM_DEF(43362, "brcmfmac43362-sdio.bin", "brcmfmac43362-sdio.txt"); BRCMF_FW_NVRAM_DEF(4339, "brcmfmac4339-sdio.bin", "brcmfmac4339-sdio.txt"); @@ -621,7 +622,7 @@ static struct brcmf_firmware_mapping brcmf_sdio_fwnames[] = { BRCMF_FW_NVRAM_ENTRY(BRCM_CC_4330_CHIP_ID, 0xFFFFFFFF, 4330), BRCMF_FW_NVRAM_ENTRY(BRCM_CC_4334_CHIP_ID, 0xFFFFFFFF, 4334), BRCMF_FW_NVRAM_ENTRY(BRCM_CC_43340_CHIP_ID, 0xFFFFFFFF, 43340), - BRCMF_FW_NVRAM_ENTRY(BRCM_CC_43341_CHIP_ID, 0xFFFFFFFF, 43340), + BRCMF_FW_NVRAM_ENTRY(BRCM_CC_43341_CHIP_ID, 0xFFFFFFFF, 43341), BRCMF_FW_NVRAM_ENTRY(BRCM_CC_4335_CHIP_ID, 0xFFFFFFFF, 4335), BRCMF_FW_NVRAM_ENTRY(BRCM_CC_43362_CHIP_ID, 0xFFFFFFFE, 43362), BRCMF_FW_NVRAM_ENTRY(BRCM_CC_4339_CHIP_ID, 0xFFFFFFFF, 4339), From 1320537ec6b1f68a2d2c98a5a021af072bfe52b4 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Fri, 17 Feb 2017 15:26:13 +0000 Subject: [PATCH 095/165] brcmfmac: Mute expected startup 'errors' The brcmfmac WiFi driver always complains about the '00' country code and the firmware version is reported as an error. Modify the driver to ignore '00' silently and display firmware version at INFO level. Signed-off-by: Phil Elwell --- drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 2 ++ drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c index b285024b754c9a6eb915d4a7c9e09126e1ecbea0..808ab269746121d35bcd175d26ecfb5a0d9c394d 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c @@ -6754,6 +6754,8 @@ static void brcmf_cfg80211_reg_notifier(struct wiphy *wiphy, /* ignore non-ISO3166 country codes */ for (i = 0; i < sizeof(req->alpha2); i++) if (req->alpha2[i] < 'A' || req->alpha2[i] > 'Z') { + if (req->alpha2[0] == '0' && req->alpha2[1] == '0') + return; brcmf_err("not a ISO3166 code (0x%02x 0x%02x)\n", req->alpha2[0], req->alpha2[1]); return; diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c index 6221b046bca44211e2dfac24119097f7ac09e829..634602e0c44f91da06db7aa803dbee6921ae921e 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c @@ -161,7 +161,7 @@ int brcmf_c_preinit_dcmds(struct brcmf_if *ifp) strsep(&ptr, "\n"); /* Print fw version info */ - brcmf_err("Firmware version = %s\n", buf); + pr_info("Firmware version = %s\n", buf); /* locate firmware version number for ethtool */ ptr = strrchr(buf, ' ') + 1; From cc7b61dbf910489fbc3eafab91dc3885b04e6121 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Thu, 17 Dec 2015 13:37:07 +0000 Subject: [PATCH 096/165] hci_h5: Don't send conf_req when ACTIVE Without this patch, a modem and kernel can continuously bombard each other with conf_req and conf_rsp messages, in a demented game of tag. --- drivers/bluetooth/hci_h5.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c index 90d0456b67446bcc624fab4b1542c4eaf21531b1..f9adeac3bbba6418dcca298c55706356b3004e34 100644 --- a/drivers/bluetooth/hci_h5.c +++ b/drivers/bluetooth/hci_h5.c @@ -308,7 +308,8 @@ static void h5_handle_internal_rx(struct hci_uart *hu) h5_link_control(hu, conf_req, 3); } else if (memcmp(data, conf_req, 2) == 0) { h5_link_control(hu, conf_rsp, 2); - h5_link_control(hu, conf_req, 3); + if (h5->state != H5_ACTIVE) + h5_link_control(hu, conf_req, 3); } else if (memcmp(data, conf_rsp, 2) == 0) { if (H5_HDR_LEN(hdr) > 2) h5->tx_win = (data[2] & 0x07); From 74f96671805d1329a6f032906d2671c2a678e053 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Mon, 13 Apr 2015 17:16:29 +0100 Subject: [PATCH 097/165] config: Add default configs --- arch/arm/configs/bcm2709_defconfig | 1309 +++++++++++++++++++++++++++++++++++ arch/arm/configs/bcmrpi_defconfig | 1317 ++++++++++++++++++++++++++++++++++++ 2 files changed, 2626 insertions(+) create mode 100644 arch/arm/configs/bcm2709_defconfig create mode 100644 arch/arm/configs/bcmrpi_defconfig diff --git a/arch/arm/configs/bcm2709_defconfig b/arch/arm/configs/bcm2709_defconfig new file mode 100644 index 0000000000000000000000000000000000000000..667755d0d8bcf6dd39fc80e19696a120ea61fe01 --- /dev/null +++ b/arch/arm/configs/bcm2709_defconfig @@ -0,0 +1,1309 @@ +CONFIG_LOCALVERSION="-v7" +# CONFIG_LOCALVERSION_AUTO is not set +CONFIG_SYSVIPC=y +CONFIG_POSIX_MQUEUE=y +CONFIG_NO_HZ=y +CONFIG_HIGH_RES_TIMERS=y +CONFIG_BSD_PROCESS_ACCT=y +CONFIG_BSD_PROCESS_ACCT_V3=y +CONFIG_TASKSTATS=y +CONFIG_TASK_DELAY_ACCT=y +CONFIG_TASK_XACCT=y +CONFIG_TASK_IO_ACCOUNTING=y +CONFIG_IKCONFIG=m +CONFIG_IKCONFIG_PROC=y +CONFIG_MEMCG=y +CONFIG_BLK_CGROUP=y +CONFIG_CGROUP_FREEZER=y +CONFIG_CPUSETS=y +CONFIG_CGROUP_DEVICE=y +CONFIG_CGROUP_CPUACCT=y +CONFIG_NAMESPACES=y +CONFIG_USER_NS=y +CONFIG_SCHED_AUTOGROUP=y +CONFIG_BLK_DEV_INITRD=y +CONFIG_EMBEDDED=y +# CONFIG_COMPAT_BRK is not set +CONFIG_PROFILING=y +CONFIG_OPROFILE=m +CONFIG_KPROBES=y +CONFIG_JUMP_LABEL=y +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +CONFIG_MODVERSIONS=y +CONFIG_MODULE_SRCVERSION_ALL=y +CONFIG_BLK_DEV_THROTTLING=y +CONFIG_PARTITION_ADVANCED=y +CONFIG_MAC_PARTITION=y +CONFIG_CFQ_GROUP_IOSCHED=y +CONFIG_ARCH_BCM=y +CONFIG_ARCH_BCM2835=y +# CONFIG_CACHE_L2X0 is not set +CONFIG_SMP=y +CONFIG_VMSPLIT_2G=y +CONFIG_PREEMPT_VOLUNTARY=y +CONFIG_AEABI=y +# CONFIG_CPU_SW_DOMAIN_PAN is not set +CONFIG_CLEANCACHE=y +CONFIG_FRONTSWAP=y +CONFIG_CMA=y +CONFIG_ZSMALLOC=m +CONFIG_PGTABLE_MAPPING=y +CONFIG_UACCESS_WITH_MEMCPY=y +CONFIG_SECCOMP=y +# CONFIG_ATAGS is not set +CONFIG_ZBOOT_ROM_TEXT=0x0 +CONFIG_ZBOOT_ROM_BSS=0x0 +CONFIG_CMDLINE="console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait" +CONFIG_CPU_FREQ=y +CONFIG_CPU_FREQ_STAT=y +CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE=y +CONFIG_CPU_FREQ_GOV_PERFORMANCE=y +CONFIG_CPU_FREQ_GOV_USERSPACE=y +CONFIG_CPU_FREQ_GOV_ONDEMAND=y +CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y +CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y +CONFIG_VFP=y +CONFIG_NEON=y +CONFIG_KERNEL_MODE_NEON=y +CONFIG_BINFMT_MISC=m +# CONFIG_SUSPEND is not set +CONFIG_PM=y +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_XFRM_USER=y +CONFIG_NET_KEY=m +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_IP_MULTIPLE_TABLES=y +CONFIG_IP_ROUTE_MULTIPATH=y +CONFIG_IP_ROUTE_VERBOSE=y +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +CONFIG_IP_PNP_RARP=y +CONFIG_NET_IPIP=m +CONFIG_NET_IPGRE_DEMUX=m +CONFIG_NET_IPGRE=m +CONFIG_IP_MROUTE=y +CONFIG_IP_MROUTE_MULTIPLE_TABLES=y +CONFIG_IP_PIMSM_V1=y +CONFIG_IP_PIMSM_V2=y +CONFIG_SYN_COOKIES=y +CONFIG_INET_AH=m +CONFIG_INET_ESP=m +CONFIG_INET_IPCOMP=m +CONFIG_INET_XFRM_MODE_TRANSPORT=m +CONFIG_INET_XFRM_MODE_TUNNEL=m +CONFIG_INET_XFRM_MODE_BEET=m +CONFIG_INET_DIAG=m +CONFIG_TCP_CONG_ADVANCED=y +CONFIG_TCP_CONG_BBR=m +CONFIG_IPV6=m +CONFIG_IPV6_ROUTER_PREF=y +CONFIG_INET6_AH=m +CONFIG_INET6_ESP=m +CONFIG_INET6_IPCOMP=m +CONFIG_IPV6_TUNNEL=m +CONFIG_IPV6_MULTIPLE_TABLES=y +CONFIG_IPV6_SUBTREES=y +CONFIG_IPV6_MROUTE=y +CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y +CONFIG_IPV6_PIMSM_V2=y +CONFIG_NETFILTER=y +CONFIG_NF_CONNTRACK=m +CONFIG_NF_CONNTRACK_ZONES=y +CONFIG_NF_CONNTRACK_EVENTS=y +CONFIG_NF_CONNTRACK_TIMESTAMP=y +CONFIG_NF_CONNTRACK_AMANDA=m +CONFIG_NF_CONNTRACK_FTP=m +CONFIG_NF_CONNTRACK_H323=m +CONFIG_NF_CONNTRACK_IRC=m +CONFIG_NF_CONNTRACK_NETBIOS_NS=m +CONFIG_NF_CONNTRACK_SNMP=m +CONFIG_NF_CONNTRACK_PPTP=m +CONFIG_NF_CONNTRACK_SANE=m +CONFIG_NF_CONNTRACK_SIP=m +CONFIG_NF_CONNTRACK_TFTP=m +CONFIG_NF_CT_NETLINK=m +CONFIG_NETFILTER_XT_SET=m +CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m +CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m +CONFIG_NETFILTER_XT_TARGET_CONNMARK=m +CONFIG_NETFILTER_XT_TARGET_DSCP=m +CONFIG_NETFILTER_XT_TARGET_HMARK=m +CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m +CONFIG_NETFILTER_XT_TARGET_LED=m +CONFIG_NETFILTER_XT_TARGET_LOG=m +CONFIG_NETFILTER_XT_TARGET_MARK=m +CONFIG_NETFILTER_XT_TARGET_NFLOG=m +CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m +CONFIG_NETFILTER_XT_TARGET_NOTRACK=m +CONFIG_NETFILTER_XT_TARGET_TEE=m +CONFIG_NETFILTER_XT_TARGET_TPROXY=m +CONFIG_NETFILTER_XT_TARGET_TRACE=m +CONFIG_NETFILTER_XT_TARGET_TCPMSS=m +CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m +CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m +CONFIG_NETFILTER_XT_MATCH_BPF=m +CONFIG_NETFILTER_XT_MATCH_CLUSTER=m +CONFIG_NETFILTER_XT_MATCH_COMMENT=m +CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m +CONFIG_NETFILTER_XT_MATCH_CONNLABEL=m +CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m +CONFIG_NETFILTER_XT_MATCH_CONNMARK=m +CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m +CONFIG_NETFILTER_XT_MATCH_CPU=m +CONFIG_NETFILTER_XT_MATCH_DCCP=m +CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m +CONFIG_NETFILTER_XT_MATCH_DSCP=m +CONFIG_NETFILTER_XT_MATCH_ESP=m +CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m +CONFIG_NETFILTER_XT_MATCH_HELPER=m +CONFIG_NETFILTER_XT_MATCH_IPRANGE=m +CONFIG_NETFILTER_XT_MATCH_IPVS=m +CONFIG_NETFILTER_XT_MATCH_LENGTH=m +CONFIG_NETFILTER_XT_MATCH_LIMIT=m +CONFIG_NETFILTER_XT_MATCH_MAC=m +CONFIG_NETFILTER_XT_MATCH_MARK=m +CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m +CONFIG_NETFILTER_XT_MATCH_NFACCT=m +CONFIG_NETFILTER_XT_MATCH_OSF=m +CONFIG_NETFILTER_XT_MATCH_OWNER=m +CONFIG_NETFILTER_XT_MATCH_POLICY=m +CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m +CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m +CONFIG_NETFILTER_XT_MATCH_QUOTA=m +CONFIG_NETFILTER_XT_MATCH_RATEEST=m +CONFIG_NETFILTER_XT_MATCH_REALM=m +CONFIG_NETFILTER_XT_MATCH_RECENT=m +CONFIG_NETFILTER_XT_MATCH_STATE=m +CONFIG_NETFILTER_XT_MATCH_STATISTIC=m +CONFIG_NETFILTER_XT_MATCH_STRING=m +CONFIG_NETFILTER_XT_MATCH_TCPMSS=m +CONFIG_NETFILTER_XT_MATCH_TIME=m +CONFIG_NETFILTER_XT_MATCH_U32=m +CONFIG_IP_SET=m +CONFIG_IP_SET_BITMAP_IP=m +CONFIG_IP_SET_BITMAP_IPMAC=m +CONFIG_IP_SET_BITMAP_PORT=m +CONFIG_IP_SET_HASH_IP=m +CONFIG_IP_SET_HASH_IPPORT=m +CONFIG_IP_SET_HASH_IPPORTIP=m +CONFIG_IP_SET_HASH_IPPORTNET=m +CONFIG_IP_SET_HASH_NET=m +CONFIG_IP_SET_HASH_NETPORT=m +CONFIG_IP_SET_HASH_NETIFACE=m +CONFIG_IP_SET_LIST_SET=m +CONFIG_IP_VS=m +CONFIG_IP_VS_PROTO_TCP=y +CONFIG_IP_VS_PROTO_UDP=y +CONFIG_IP_VS_PROTO_ESP=y +CONFIG_IP_VS_PROTO_AH=y +CONFIG_IP_VS_PROTO_SCTP=y +CONFIG_IP_VS_RR=m +CONFIG_IP_VS_WRR=m +CONFIG_IP_VS_LC=m +CONFIG_IP_VS_WLC=m +CONFIG_IP_VS_LBLC=m +CONFIG_IP_VS_LBLCR=m +CONFIG_IP_VS_DH=m +CONFIG_IP_VS_SH=m +CONFIG_IP_VS_SED=m +CONFIG_IP_VS_NQ=m +CONFIG_IP_VS_FTP=m +CONFIG_IP_VS_PE_SIP=m +CONFIG_NF_CONNTRACK_IPV4=m +CONFIG_IP_NF_IPTABLES=m +CONFIG_IP_NF_MATCH_AH=m +CONFIG_IP_NF_MATCH_ECN=m +CONFIG_IP_NF_MATCH_RPFILTER=m +CONFIG_IP_NF_MATCH_TTL=m +CONFIG_IP_NF_FILTER=m +CONFIG_IP_NF_TARGET_REJECT=m +CONFIG_IP_NF_NAT=m +CONFIG_IP_NF_TARGET_MASQUERADE=m +CONFIG_IP_NF_TARGET_NETMAP=m +CONFIG_IP_NF_TARGET_REDIRECT=m +CONFIG_IP_NF_MANGLE=m +CONFIG_IP_NF_TARGET_CLUSTERIP=m +CONFIG_IP_NF_TARGET_ECN=m +CONFIG_IP_NF_TARGET_TTL=m +CONFIG_IP_NF_RAW=m +CONFIG_IP_NF_ARPTABLES=m +CONFIG_IP_NF_ARPFILTER=m +CONFIG_IP_NF_ARP_MANGLE=m +CONFIG_NF_CONNTRACK_IPV6=m +CONFIG_IP6_NF_IPTABLES=m +CONFIG_IP6_NF_MATCH_AH=m +CONFIG_IP6_NF_MATCH_EUI64=m +CONFIG_IP6_NF_MATCH_FRAG=m +CONFIG_IP6_NF_MATCH_OPTS=m +CONFIG_IP6_NF_MATCH_HL=m +CONFIG_IP6_NF_MATCH_IPV6HEADER=m +CONFIG_IP6_NF_MATCH_MH=m +CONFIG_IP6_NF_MATCH_RPFILTER=m +CONFIG_IP6_NF_MATCH_RT=m +CONFIG_IP6_NF_TARGET_HL=m +CONFIG_IP6_NF_FILTER=m +CONFIG_IP6_NF_TARGET_REJECT=m +CONFIG_IP6_NF_MANGLE=m +CONFIG_IP6_NF_RAW=m +CONFIG_IP6_NF_NAT=m +CONFIG_IP6_NF_TARGET_MASQUERADE=m +CONFIG_IP6_NF_TARGET_NPT=m +CONFIG_BRIDGE_NF_EBTABLES=m +CONFIG_BRIDGE_EBT_BROUTE=m +CONFIG_BRIDGE_EBT_T_FILTER=m +CONFIG_BRIDGE_EBT_T_NAT=m +CONFIG_BRIDGE_EBT_802_3=m +CONFIG_BRIDGE_EBT_AMONG=m +CONFIG_BRIDGE_EBT_ARP=m +CONFIG_BRIDGE_EBT_IP=m +CONFIG_BRIDGE_EBT_IP6=m +CONFIG_BRIDGE_EBT_LIMIT=m +CONFIG_BRIDGE_EBT_MARK=m +CONFIG_BRIDGE_EBT_PKTTYPE=m +CONFIG_BRIDGE_EBT_STP=m +CONFIG_BRIDGE_EBT_VLAN=m +CONFIG_BRIDGE_EBT_ARPREPLY=m +CONFIG_BRIDGE_EBT_DNAT=m +CONFIG_BRIDGE_EBT_MARK_T=m +CONFIG_BRIDGE_EBT_REDIRECT=m +CONFIG_BRIDGE_EBT_SNAT=m +CONFIG_BRIDGE_EBT_LOG=m +CONFIG_BRIDGE_EBT_NFLOG=m +CONFIG_SCTP_COOKIE_HMAC_SHA1=y +CONFIG_ATM=m +CONFIG_L2TP=m +CONFIG_L2TP_V3=y +CONFIG_L2TP_IP=m +CONFIG_L2TP_ETH=m +CONFIG_BRIDGE=m +CONFIG_VLAN_8021Q=m +CONFIG_VLAN_8021Q_GVRP=y +CONFIG_ATALK=m +CONFIG_6LOWPAN=m +CONFIG_IEEE802154=m +CONFIG_IEEE802154_6LOWPAN=m +CONFIG_MAC802154=m +CONFIG_NET_SCHED=y +CONFIG_NET_SCH_CBQ=m +CONFIG_NET_SCH_HTB=m +CONFIG_NET_SCH_HFSC=m +CONFIG_NET_SCH_ATM=m +CONFIG_NET_SCH_PRIO=m +CONFIG_NET_SCH_MULTIQ=m +CONFIG_NET_SCH_RED=m +CONFIG_NET_SCH_SFB=m +CONFIG_NET_SCH_SFQ=m +CONFIG_NET_SCH_TEQL=m +CONFIG_NET_SCH_TBF=m +CONFIG_NET_SCH_GRED=m +CONFIG_NET_SCH_DSMARK=m +CONFIG_NET_SCH_NETEM=m +CONFIG_NET_SCH_DRR=m +CONFIG_NET_SCH_MQPRIO=m +CONFIG_NET_SCH_CHOKE=m +CONFIG_NET_SCH_QFQ=m +CONFIG_NET_SCH_CODEL=m +CONFIG_NET_SCH_FQ_CODEL=m +CONFIG_NET_SCH_FQ=m +CONFIG_NET_SCH_HHF=m +CONFIG_NET_SCH_PIE=m +CONFIG_NET_SCH_INGRESS=m +CONFIG_NET_SCH_PLUG=m +CONFIG_NET_CLS_BASIC=m +CONFIG_NET_CLS_TCINDEX=m +CONFIG_NET_CLS_ROUTE4=m +CONFIG_NET_CLS_FW=m +CONFIG_NET_CLS_U32=m +CONFIG_CLS_U32_MARK=y +CONFIG_NET_CLS_RSVP=m +CONFIG_NET_CLS_RSVP6=m +CONFIG_NET_CLS_FLOW=m +CONFIG_NET_CLS_CGROUP=m +CONFIG_NET_EMATCH=y +CONFIG_NET_EMATCH_CMP=m +CONFIG_NET_EMATCH_NBYTE=m +CONFIG_NET_EMATCH_U32=m +CONFIG_NET_EMATCH_META=m +CONFIG_NET_EMATCH_TEXT=m +CONFIG_NET_EMATCH_IPSET=m +CONFIG_NET_CLS_ACT=y +CONFIG_NET_ACT_POLICE=m +CONFIG_NET_ACT_GACT=m +CONFIG_GACT_PROB=y +CONFIG_NET_ACT_MIRRED=m +CONFIG_NET_ACT_IPT=m +CONFIG_NET_ACT_NAT=m +CONFIG_NET_ACT_PEDIT=m +CONFIG_NET_ACT_SIMP=m +CONFIG_NET_ACT_SKBEDIT=m +CONFIG_NET_ACT_CSUM=m +CONFIG_BATMAN_ADV=m +CONFIG_OPENVSWITCH=m +CONFIG_NET_PKTGEN=m +CONFIG_HAMRADIO=y +CONFIG_AX25=m +CONFIG_NETROM=m +CONFIG_ROSE=m +CONFIG_MKISS=m +CONFIG_6PACK=m +CONFIG_BPQETHER=m +CONFIG_BAYCOM_SER_FDX=m +CONFIG_BAYCOM_SER_HDX=m +CONFIG_YAM=m +CONFIG_CAN=m +CONFIG_CAN_VCAN=m +CONFIG_CAN_SLCAN=m +CONFIG_CAN_MCP251X=m +CONFIG_IRDA=m +CONFIG_IRLAN=m +CONFIG_IRNET=m +CONFIG_IRCOMM=m +CONFIG_IRDA_ULTRA=y +CONFIG_IRDA_CACHE_LAST_LSAP=y +CONFIG_IRDA_FAST_RR=y +CONFIG_IRTTY_SIR=m +CONFIG_KINGSUN_DONGLE=m +CONFIG_KSDAZZLE_DONGLE=m +CONFIG_KS959_DONGLE=m +CONFIG_USB_IRDA=m +CONFIG_SIGMATEL_FIR=m +CONFIG_MCS_FIR=m +CONFIG_BT=m +CONFIG_BT_RFCOMM=m +CONFIG_BT_RFCOMM_TTY=y +CONFIG_BT_BNEP=m +CONFIG_BT_BNEP_MC_FILTER=y +CONFIG_BT_BNEP_PROTO_FILTER=y +CONFIG_BT_HIDP=m +CONFIG_BT_6LOWPAN=m +CONFIG_BT_HCIBTUSB=m +CONFIG_BT_HCIUART=m +CONFIG_BT_HCIUART_3WIRE=y +CONFIG_BT_HCIUART_BCM=y +CONFIG_BT_HCIBCM203X=m +CONFIG_BT_HCIBPA10X=m +CONFIG_BT_HCIBFUSB=m +CONFIG_BT_HCIVHCI=m +CONFIG_BT_MRVL=m +CONFIG_BT_MRVL_SDIO=m +CONFIG_BT_ATH3K=m +CONFIG_BT_WILINK=m +CONFIG_CFG80211=m +CONFIG_MAC80211=m +CONFIG_MAC80211_MESH=y +CONFIG_WIMAX=m +CONFIG_RFKILL=m +CONFIG_RFKILL_INPUT=y +CONFIG_NET_9P=m +CONFIG_NFC=m +CONFIG_DEVTMPFS=y +CONFIG_DEVTMPFS_MOUNT=y +CONFIG_DMA_CMA=y +CONFIG_CMA_SIZE_MBYTES=5 +CONFIG_MTD=m +CONFIG_MTD_BLOCK=m +CONFIG_MTD_M25P80=m +CONFIG_MTD_NAND=m +CONFIG_MTD_SPI_NOR=m +CONFIG_MTD_UBI=m +CONFIG_OF_CONFIGFS=y +CONFIG_ZRAM=m +CONFIG_BLK_DEV_LOOP=y +CONFIG_BLK_DEV_CRYPTOLOOP=m +CONFIG_BLK_DEV_DRBD=m +CONFIG_BLK_DEV_NBD=m +CONFIG_BLK_DEV_RAM=y +CONFIG_CDROM_PKTCDVD=m +CONFIG_ATA_OVER_ETH=m +CONFIG_EEPROM_AT24=m +CONFIG_TI_ST=m +CONFIG_SCSI=y +# CONFIG_SCSI_PROC_FS is not set +CONFIG_BLK_DEV_SD=y +CONFIG_CHR_DEV_ST=m +CONFIG_CHR_DEV_OSST=m +CONFIG_BLK_DEV_SR=m +CONFIG_CHR_DEV_SG=m +CONFIG_SCSI_ISCSI_ATTRS=y +CONFIG_ISCSI_TCP=m +CONFIG_ISCSI_BOOT_SYSFS=m +CONFIG_MD=y +CONFIG_MD_LINEAR=m +CONFIG_MD_RAID0=m +CONFIG_BLK_DEV_DM=m +CONFIG_DM_CRYPT=m +CONFIG_DM_SNAPSHOT=m +CONFIG_DM_THIN_PROVISIONING=m +CONFIG_DM_MIRROR=m +CONFIG_DM_LOG_USERSPACE=m +CONFIG_DM_RAID=m +CONFIG_DM_ZERO=m +CONFIG_DM_DELAY=m +CONFIG_NETDEVICES=y +CONFIG_BONDING=m +CONFIG_DUMMY=m +CONFIG_IFB=m +CONFIG_MACVLAN=m +CONFIG_VXLAN=m +CONFIG_NETCONSOLE=m +CONFIG_TUN=m +CONFIG_VETH=m +CONFIG_ENC28J60=m +CONFIG_QCA7000=m +CONFIG_MDIO_BITBANG=m +CONFIG_PPP=m +CONFIG_PPP_BSDCOMP=m +CONFIG_PPP_DEFLATE=m +CONFIG_PPP_FILTER=y +CONFIG_PPP_MPPE=m +CONFIG_PPP_MULTILINK=y +CONFIG_PPPOATM=m +CONFIG_PPPOE=m +CONFIG_PPPOL2TP=m +CONFIG_PPP_ASYNC=m +CONFIG_PPP_SYNC_TTY=m +CONFIG_SLIP=m +CONFIG_SLIP_COMPRESSED=y +CONFIG_SLIP_SMART=y +CONFIG_USB_CATC=m +CONFIG_USB_KAWETH=m +CONFIG_USB_PEGASUS=m +CONFIG_USB_RTL8150=m +CONFIG_USB_RTL8152=m +CONFIG_USB_USBNET=y +CONFIG_USB_NET_AX8817X=m +CONFIG_USB_NET_AX88179_178A=m +CONFIG_USB_NET_CDCETHER=m +CONFIG_USB_NET_CDC_EEM=m +CONFIG_USB_NET_CDC_NCM=m +CONFIG_USB_NET_HUAWEI_CDC_NCM=m +CONFIG_USB_NET_CDC_MBIM=m +CONFIG_USB_NET_DM9601=m +CONFIG_USB_NET_SR9700=m +CONFIG_USB_NET_SR9800=m +CONFIG_USB_NET_SMSC75XX=m +CONFIG_USB_NET_SMSC95XX=y +CONFIG_USB_NET_GL620A=m +CONFIG_USB_NET_NET1080=m +CONFIG_USB_NET_PLUSB=m +CONFIG_USB_NET_MCS7830=m +CONFIG_USB_NET_CDC_SUBSET=m +CONFIG_USB_ALI_M5632=y +CONFIG_USB_AN2720=y +CONFIG_USB_EPSON2888=y +CONFIG_USB_KC2190=y +CONFIG_USB_NET_ZAURUS=m +CONFIG_USB_NET_CX82310_ETH=m +CONFIG_USB_NET_KALMIA=m +CONFIG_USB_NET_QMI_WWAN=m +CONFIG_USB_HSO=m +CONFIG_USB_NET_INT51X1=m +CONFIG_USB_IPHETH=m +CONFIG_USB_SIERRA_NET=m +CONFIG_USB_VL600=m +CONFIG_ATH9K=m +CONFIG_ATH9K_HTC=m +CONFIG_CARL9170=m +CONFIG_ATH6KL=m +CONFIG_ATH6KL_USB=m +CONFIG_AR5523=m +CONFIG_AT76C50X_USB=m +CONFIG_B43=m +# CONFIG_B43_PHY_N is not set +CONFIG_B43LEGACY=m +CONFIG_BRCMFMAC=m +CONFIG_BRCMFMAC_USB=y +CONFIG_HOSTAP=m +CONFIG_P54_COMMON=m +CONFIG_P54_USB=m +CONFIG_LIBERTAS=m +CONFIG_LIBERTAS_USB=m +CONFIG_LIBERTAS_SDIO=m +CONFIG_LIBERTAS_THINFIRM=m +CONFIG_LIBERTAS_THINFIRM_USB=m +CONFIG_MWIFIEX=m +CONFIG_MWIFIEX_SDIO=m +CONFIG_MT7601U=m +CONFIG_RT2X00=m +CONFIG_RT2500USB=m +CONFIG_RT73USB=m +CONFIG_RT2800USB=m +CONFIG_RT2800USB_RT3573=y +CONFIG_RT2800USB_RT53XX=y +CONFIG_RT2800USB_RT55XX=y +CONFIG_RT2800USB_UNKNOWN=y +CONFIG_RTL8187=m +CONFIG_RTL8192CU=m +CONFIG_RTL8XXXU=m +CONFIG_USB_ZD1201=m +CONFIG_ZD1211RW=m +CONFIG_MAC80211_HWSIM=m +CONFIG_USB_NET_RNDIS_WLAN=m +CONFIG_WIMAX_I2400M_USB=m +CONFIG_IEEE802154_AT86RF230=m +CONFIG_IEEE802154_MRF24J40=m +CONFIG_IEEE802154_CC2520=m +CONFIG_INPUT_POLLDEV=m +CONFIG_INPUT_MOUSEDEV=y +CONFIG_INPUT_JOYDEV=m +CONFIG_INPUT_EVDEV=m +# CONFIG_KEYBOARD_ATKBD is not set +CONFIG_KEYBOARD_GPIO=m +# CONFIG_INPUT_MOUSE is not set +CONFIG_INPUT_JOYSTICK=y +CONFIG_JOYSTICK_IFORCE=m +CONFIG_JOYSTICK_IFORCE_USB=y +CONFIG_JOYSTICK_XPAD=m +CONFIG_JOYSTICK_XPAD_FF=y +CONFIG_JOYSTICK_XPAD_LEDS=y +CONFIG_JOYSTICK_RPISENSE=m +CONFIG_INPUT_TOUCHSCREEN=y +CONFIG_TOUCHSCREEN_ADS7846=m +CONFIG_TOUCHSCREEN_EGALAX=m +CONFIG_TOUCHSCREEN_RPI_FT5406=m +CONFIG_TOUCHSCREEN_USB_COMPOSITE=m +CONFIG_TOUCHSCREEN_STMPE=m +CONFIG_INPUT_MISC=y +CONFIG_INPUT_AD714X=m +CONFIG_INPUT_ATI_REMOTE2=m +CONFIG_INPUT_KEYSPAN_REMOTE=m +CONFIG_INPUT_POWERMATE=m +CONFIG_INPUT_YEALINK=m +CONFIG_INPUT_CM109=m +CONFIG_INPUT_UINPUT=m +CONFIG_INPUT_GPIO_ROTARY_ENCODER=m +CONFIG_INPUT_ADXL34X=m +CONFIG_INPUT_CMA3000=m +CONFIG_SERIO=m +CONFIG_SERIO_RAW=m +CONFIG_GAMEPORT=m +CONFIG_GAMEPORT_NS558=m +CONFIG_GAMEPORT_L4=m +CONFIG_BRCM_CHAR_DRIVERS=y +CONFIG_BCM_VCIO=y +CONFIG_BCM_VC_SM=y +CONFIG_BCM2835_DEVGPIOMEM=y +# CONFIG_LEGACY_PTYS is not set +CONFIG_SERIAL_8250=y +# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set +CONFIG_SERIAL_8250_CONSOLE=y +# CONFIG_SERIAL_8250_DMA is not set +CONFIG_SERIAL_8250_NR_UARTS=1 +CONFIG_SERIAL_8250_RUNTIME_UARTS=0 +CONFIG_SERIAL_8250_EXTENDED=y +CONFIG_SERIAL_8250_SHARE_IRQ=y +CONFIG_SERIAL_8250_BCM2835AUX=y +CONFIG_SERIAL_OF_PLATFORM=y +CONFIG_SERIAL_AMBA_PL011=y +CONFIG_SERIAL_AMBA_PL011_CONSOLE=y +CONFIG_SERIAL_SC16IS7XX=m +CONFIG_SERIAL_SC16IS7XX_SPI=y +CONFIG_TTY_PRINTK=y +CONFIG_HW_RANDOM=y +CONFIG_RAW_DRIVER=y +CONFIG_I2C=y +CONFIG_I2C_CHARDEV=m +CONFIG_I2C_MUX_PCA954x=m +CONFIG_I2C_BCM2708=m +CONFIG_I2C_BCM2835=m +CONFIG_I2C_GPIO=m +CONFIG_SPI=y +CONFIG_SPI_BCM2835=m +CONFIG_SPI_BCM2835AUX=m +CONFIG_SPI_SPIDEV=y +CONFIG_PPS=m +CONFIG_PPS_CLIENT_LDISC=m +CONFIG_PPS_CLIENT_GPIO=m +CONFIG_GPIO_SYSFS=y +CONFIG_GPIO_BCM_EXP=y +CONFIG_GPIO_BCM_VIRT=y +CONFIG_GPIO_ARIZONA=m +CONFIG_GPIO_STMPE=y +CONFIG_GPIO_MCP23S08=m +CONFIG_W1=m +CONFIG_W1_MASTER_DS2490=m +CONFIG_W1_MASTER_DS2482=m +CONFIG_W1_MASTER_DS1WM=m +CONFIG_W1_MASTER_GPIO=m +CONFIG_W1_SLAVE_THERM=m +CONFIG_W1_SLAVE_SMEM=m +CONFIG_W1_SLAVE_DS2408=m +CONFIG_W1_SLAVE_DS2413=m +CONFIG_W1_SLAVE_DS2406=m +CONFIG_W1_SLAVE_DS2423=m +CONFIG_W1_SLAVE_DS2431=m +CONFIG_W1_SLAVE_DS2433=m +CONFIG_W1_SLAVE_DS2760=m +CONFIG_W1_SLAVE_DS2780=m +CONFIG_W1_SLAVE_DS2781=m +CONFIG_W1_SLAVE_DS28E04=m +CONFIG_W1_SLAVE_BQ27000=m +CONFIG_POWER_RESET=y +CONFIG_POWER_RESET_GPIO=y +CONFIG_BATTERY_DS2760=m +CONFIG_HWMON=m +CONFIG_SENSORS_LM75=m +CONFIG_SENSORS_SHT21=m +CONFIG_SENSORS_SHTC1=m +CONFIG_SENSORS_ADS1015=m +CONFIG_SENSORS_INA2XX=m +CONFIG_THERMAL=y +CONFIG_THERMAL_BCM2835=y +CONFIG_WATCHDOG=y +CONFIG_BCM2835_WDT=y +CONFIG_MFD_STMPE=y +CONFIG_STMPE_SPI=y +CONFIG_MFD_ARIZONA_I2C=m +CONFIG_MFD_ARIZONA_SPI=m +CONFIG_MFD_WM5102=y +CONFIG_REGULATOR=y +CONFIG_REGULATOR_FIXED_VOLTAGE=m +CONFIG_REGULATOR_ARIZONA=m +CONFIG_MEDIA_SUPPORT=m +CONFIG_MEDIA_CAMERA_SUPPORT=y +CONFIG_MEDIA_ANALOG_TV_SUPPORT=y +CONFIG_MEDIA_DIGITAL_TV_SUPPORT=y +CONFIG_MEDIA_RADIO_SUPPORT=y +CONFIG_MEDIA_RC_SUPPORT=y +CONFIG_MEDIA_CONTROLLER=y +CONFIG_LIRC=m +CONFIG_RC_DEVICES=y +CONFIG_RC_ATI_REMOTE=m +CONFIG_IR_IMON=m +CONFIG_IR_MCEUSB=m +CONFIG_IR_REDRAT3=m +CONFIG_IR_STREAMZAP=m +CONFIG_IR_IGUANA=m +CONFIG_IR_TTUSBIR=m +CONFIG_RC_LOOPBACK=m +CONFIG_IR_GPIO_CIR=m +CONFIG_MEDIA_USB_SUPPORT=y +CONFIG_USB_VIDEO_CLASS=m +CONFIG_USB_M5602=m +CONFIG_USB_STV06XX=m +CONFIG_USB_GL860=m +CONFIG_USB_GSPCA_BENQ=m +CONFIG_USB_GSPCA_CONEX=m +CONFIG_USB_GSPCA_CPIA1=m +CONFIG_USB_GSPCA_DTCS033=m +CONFIG_USB_GSPCA_ETOMS=m +CONFIG_USB_GSPCA_FINEPIX=m +CONFIG_USB_GSPCA_JEILINJ=m +CONFIG_USB_GSPCA_JL2005BCD=m +CONFIG_USB_GSPCA_KINECT=m +CONFIG_USB_GSPCA_KONICA=m +CONFIG_USB_GSPCA_MARS=m +CONFIG_USB_GSPCA_MR97310A=m +CONFIG_USB_GSPCA_NW80X=m +CONFIG_USB_GSPCA_OV519=m +CONFIG_USB_GSPCA_OV534=m +CONFIG_USB_GSPCA_OV534_9=m +CONFIG_USB_GSPCA_PAC207=m +CONFIG_USB_GSPCA_PAC7302=m +CONFIG_USB_GSPCA_PAC7311=m +CONFIG_USB_GSPCA_SE401=m +CONFIG_USB_GSPCA_SN9C2028=m +CONFIG_USB_GSPCA_SN9C20X=m +CONFIG_USB_GSPCA_SONIXB=m +CONFIG_USB_GSPCA_SONIXJ=m +CONFIG_USB_GSPCA_SPCA500=m +CONFIG_USB_GSPCA_SPCA501=m +CONFIG_USB_GSPCA_SPCA505=m +CONFIG_USB_GSPCA_SPCA506=m +CONFIG_USB_GSPCA_SPCA508=m +CONFIG_USB_GSPCA_SPCA561=m +CONFIG_USB_GSPCA_SPCA1528=m +CONFIG_USB_GSPCA_SQ905=m +CONFIG_USB_GSPCA_SQ905C=m +CONFIG_USB_GSPCA_SQ930X=m +CONFIG_USB_GSPCA_STK014=m +CONFIG_USB_GSPCA_STK1135=m +CONFIG_USB_GSPCA_STV0680=m +CONFIG_USB_GSPCA_SUNPLUS=m +CONFIG_USB_GSPCA_T613=m +CONFIG_USB_GSPCA_TOPRO=m +CONFIG_USB_GSPCA_TV8532=m +CONFIG_USB_GSPCA_VC032X=m +CONFIG_USB_GSPCA_VICAM=m +CONFIG_USB_GSPCA_XIRLINK_CIT=m +CONFIG_USB_GSPCA_ZC3XX=m +CONFIG_USB_PWC=m +CONFIG_VIDEO_CPIA2=m +CONFIG_USB_ZR364XX=m +CONFIG_USB_STKWEBCAM=m +CONFIG_USB_S2255=m +CONFIG_VIDEO_USBTV=m +CONFIG_VIDEO_PVRUSB2=m +CONFIG_VIDEO_HDPVR=m +CONFIG_VIDEO_USBVISION=m +CONFIG_VIDEO_STK1160_COMMON=m +CONFIG_VIDEO_GO7007=m +CONFIG_VIDEO_GO7007_USB=m +CONFIG_VIDEO_GO7007_USB_S2250_BOARD=m +CONFIG_VIDEO_AU0828=m +CONFIG_VIDEO_AU0828_RC=y +CONFIG_VIDEO_CX231XX=m +CONFIG_VIDEO_CX231XX_ALSA=m +CONFIG_VIDEO_CX231XX_DVB=m +CONFIG_VIDEO_TM6000=m +CONFIG_VIDEO_TM6000_ALSA=m +CONFIG_VIDEO_TM6000_DVB=m +CONFIG_DVB_USB=m +CONFIG_DVB_USB_A800=m +CONFIG_DVB_USB_DIBUSB_MB=m +CONFIG_DVB_USB_DIBUSB_MB_FAULTY=y +CONFIG_DVB_USB_DIBUSB_MC=m +CONFIG_DVB_USB_DIB0700=m +CONFIG_DVB_USB_UMT_010=m +CONFIG_DVB_USB_CXUSB=m +CONFIG_DVB_USB_M920X=m +CONFIG_DVB_USB_DIGITV=m +CONFIG_DVB_USB_VP7045=m +CONFIG_DVB_USB_VP702X=m +CONFIG_DVB_USB_GP8PSK=m +CONFIG_DVB_USB_NOVA_T_USB2=m +CONFIG_DVB_USB_TTUSB2=m +CONFIG_DVB_USB_DTT200U=m +CONFIG_DVB_USB_OPERA1=m +CONFIG_DVB_USB_AF9005=m +CONFIG_DVB_USB_AF9005_REMOTE=m +CONFIG_DVB_USB_PCTV452E=m +CONFIG_DVB_USB_DW2102=m +CONFIG_DVB_USB_CINERGY_T2=m +CONFIG_DVB_USB_DTV5100=m +CONFIG_DVB_USB_FRIIO=m +CONFIG_DVB_USB_AZ6027=m +CONFIG_DVB_USB_TECHNISAT_USB2=m +CONFIG_DVB_USB_V2=m +CONFIG_DVB_USB_AF9015=m +CONFIG_DVB_USB_AF9035=m +CONFIG_DVB_USB_ANYSEE=m +CONFIG_DVB_USB_AU6610=m +CONFIG_DVB_USB_AZ6007=m +CONFIG_DVB_USB_CE6230=m +CONFIG_DVB_USB_EC168=m +CONFIG_DVB_USB_GL861=m +CONFIG_DVB_USB_LME2510=m +CONFIG_DVB_USB_MXL111SF=m +CONFIG_DVB_USB_RTL28XXU=m +CONFIG_DVB_USB_DVBSKY=m +CONFIG_SMS_USB_DRV=m +CONFIG_DVB_B2C2_FLEXCOP_USB=m +CONFIG_DVB_AS102=m +CONFIG_VIDEO_EM28XX=m +CONFIG_VIDEO_EM28XX_V4L2=m +CONFIG_VIDEO_EM28XX_ALSA=m +CONFIG_VIDEO_EM28XX_DVB=m +CONFIG_V4L_PLATFORM_DRIVERS=y +CONFIG_RADIO_SI470X=y +CONFIG_USB_SI470X=m +CONFIG_I2C_SI470X=m +CONFIG_RADIO_SI4713=m +CONFIG_I2C_SI4713=m +CONFIG_USB_MR800=m +CONFIG_USB_DSBR=m +CONFIG_RADIO_SHARK=m +CONFIG_RADIO_SHARK2=m +CONFIG_USB_KEENE=m +CONFIG_USB_MA901=m +CONFIG_RADIO_TEA5764=m +CONFIG_RADIO_SAA7706H=m +CONFIG_RADIO_TEF6862=m +CONFIG_RADIO_WL1273=m +CONFIG_RADIO_WL128X=m +# CONFIG_MEDIA_SUBDRV_AUTOSELECT is not set +CONFIG_VIDEO_UDA1342=m +CONFIG_VIDEO_SONY_BTF_MPX=m +CONFIG_VIDEO_TVP5150=m +CONFIG_VIDEO_TW2804=m +CONFIG_VIDEO_TW9903=m +CONFIG_VIDEO_TW9906=m +CONFIG_VIDEO_OV7640=m +CONFIG_VIDEO_MT9V011=m +CONFIG_DRM=m +CONFIG_DRM_LOAD_EDID_FIRMWARE=y +CONFIG_DRM_UDL=m +CONFIG_DRM_PANEL_SIMPLE=m +CONFIG_DRM_VC4=m +CONFIG_FB=y +CONFIG_FB_BCM2708=y +CONFIG_FB_UDL=m +CONFIG_FB_SSD1307=m +CONFIG_FB_RPISENSE=m +# CONFIG_BACKLIGHT_GENERIC is not set +CONFIG_BACKLIGHT_RPI=m +CONFIG_BACKLIGHT_GPIO=m +CONFIG_FRAMEBUFFER_CONSOLE=y +CONFIG_LOGO=y +# CONFIG_LOGO_LINUX_MONO is not set +# CONFIG_LOGO_LINUX_VGA16 is not set +CONFIG_SOUND=y +CONFIG_SND=m +CONFIG_SND_SEQUENCER=m +CONFIG_SND_SEQ_DUMMY=m +CONFIG_SND_MIXER_OSS=m +CONFIG_SND_PCM_OSS=m +CONFIG_SND_SEQUENCER_OSS=y +CONFIG_SND_HRTIMER=m +CONFIG_SND_DUMMY=m +CONFIG_SND_ALOOP=m +CONFIG_SND_VIRMIDI=m +CONFIG_SND_MTPAV=m +CONFIG_SND_SERIAL_U16550=m +CONFIG_SND_MPU401=m +CONFIG_SND_USB_AUDIO=m +CONFIG_SND_USB_UA101=m +CONFIG_SND_USB_CAIAQ=m +CONFIG_SND_USB_CAIAQ_INPUT=y +CONFIG_SND_USB_6FIRE=m +CONFIG_SND_SOC=m +CONFIG_SND_BCM2835_SOC_I2S=m +CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC=m +CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS=m +CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI=m +CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP=m +CONFIG_SND_BCM2708_SOC_RPI_CIRRUS=m +CONFIG_SND_BCM2708_SOC_RPI_DAC=m +CONFIG_SND_BCM2708_SOC_RPI_PROTO=m +CONFIG_SND_BCM2708_SOC_JUSTBOOM_DAC=m +CONFIG_SND_BCM2708_SOC_JUSTBOOM_DIGI=m +CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC=m +CONFIG_SND_BCM2708_SOC_IQAUDIO_DIGI=m +CONFIG_SND_BCM2708_SOC_RASPIDAC3=m +CONFIG_SND_BCM2708_SOC_ADAU1977_ADC=m +CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD=m +CONFIG_SND_AUDIOINJECTOR_OCTO_SOUNDCARD=m +CONFIG_SND_DIGIDAC1_SOUNDCARD=m +CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO=m +CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO_V2=m +CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC=m +CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO=m +CONFIG_SND_PISOUND=m +CONFIG_SND_SOC_ADAU1701=m +CONFIG_SND_SOC_ADAU7002=m +CONFIG_SND_SOC_AK4554=m +CONFIG_SND_SOC_WM8804_I2C=m +CONFIG_SND_SIMPLE_CARD=m +CONFIG_SOUND_PRIME=m +CONFIG_HIDRAW=y +CONFIG_UHID=m +CONFIG_HID_A4TECH=m +CONFIG_HID_ACRUX=m +CONFIG_HID_APPLE=m +CONFIG_HID_BELKIN=m +CONFIG_HID_BETOP_FF=m +CONFIG_HID_CHERRY=m +CONFIG_HID_CHICONY=m +CONFIG_HID_CYPRESS=m +CONFIG_HID_DRAGONRISE=m +CONFIG_HID_EMS_FF=m +CONFIG_HID_ELECOM=m +CONFIG_HID_ELO=m +CONFIG_HID_EZKEY=m +CONFIG_HID_GEMBIRD=m +CONFIG_HID_HOLTEK=m +CONFIG_HID_KEYTOUCH=m +CONFIG_HID_KYE=m +CONFIG_HID_UCLOGIC=m +CONFIG_HID_WALTOP=m +CONFIG_HID_GYRATION=m +CONFIG_HID_TWINHAN=m +CONFIG_HID_KENSINGTON=m +CONFIG_HID_LCPOWER=m +CONFIG_HID_LOGITECH=m +CONFIG_HID_LOGITECH_DJ=m +CONFIG_LOGITECH_FF=y +CONFIG_LOGIRUMBLEPAD2_FF=y +CONFIG_LOGIG940_FF=y +CONFIG_HID_MAGICMOUSE=m +CONFIG_HID_MICROSOFT=m +CONFIG_HID_MONTEREY=m +CONFIG_HID_MULTITOUCH=m +CONFIG_HID_NTRIG=m +CONFIG_HID_ORTEK=m +CONFIG_HID_PANTHERLORD=m +CONFIG_HID_PETALYNX=m +CONFIG_HID_PICOLCD=m +CONFIG_HID_ROCCAT=m +CONFIG_HID_SAMSUNG=m +CONFIG_HID_SONY=m +CONFIG_HID_SPEEDLINK=m +CONFIG_HID_SUNPLUS=m +CONFIG_HID_GREENASIA=m +CONFIG_HID_SMARTJOYPLUS=m +CONFIG_HID_TOPSEED=m +CONFIG_HID_THINGM=m +CONFIG_HID_THRUSTMASTER=m +CONFIG_HID_WACOM=m +CONFIG_HID_WIIMOTE=m +CONFIG_HID_XINMO=m +CONFIG_HID_ZEROPLUS=m +CONFIG_HID_ZYDACRON=m +CONFIG_HID_PID=y +CONFIG_USB_HIDDEV=y +CONFIG_USB=y +CONFIG_USB_ANNOUNCE_NEW_DEVICES=y +CONFIG_USB_MON=m +CONFIG_USB_DWCOTG=y +CONFIG_USB_PRINTER=m +CONFIG_USB_STORAGE=y +CONFIG_USB_STORAGE_REALTEK=m +CONFIG_USB_STORAGE_DATAFAB=m +CONFIG_USB_STORAGE_FREECOM=m +CONFIG_USB_STORAGE_ISD200=m +CONFIG_USB_STORAGE_USBAT=m +CONFIG_USB_STORAGE_SDDR09=m +CONFIG_USB_STORAGE_SDDR55=m +CONFIG_USB_STORAGE_JUMPSHOT=m +CONFIG_USB_STORAGE_ALAUDA=m +CONFIG_USB_STORAGE_ONETOUCH=m +CONFIG_USB_STORAGE_KARMA=m +CONFIG_USB_STORAGE_CYPRESS_ATACB=m +CONFIG_USB_STORAGE_ENE_UB6250=m +CONFIG_USB_MDC800=m +CONFIG_USB_MICROTEK=m +CONFIG_USBIP_CORE=m +CONFIG_USBIP_VHCI_HCD=m +CONFIG_USBIP_HOST=m +CONFIG_USB_DWC2=m +CONFIG_USB_SERIAL=m +CONFIG_USB_SERIAL_GENERIC=y +CONFIG_USB_SERIAL_AIRCABLE=m +CONFIG_USB_SERIAL_ARK3116=m +CONFIG_USB_SERIAL_BELKIN=m +CONFIG_USB_SERIAL_CH341=m +CONFIG_USB_SERIAL_WHITEHEAT=m +CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m +CONFIG_USB_SERIAL_CP210X=m +CONFIG_USB_SERIAL_CYPRESS_M8=m +CONFIG_USB_SERIAL_EMPEG=m +CONFIG_USB_SERIAL_FTDI_SIO=m +CONFIG_USB_SERIAL_VISOR=m +CONFIG_USB_SERIAL_IPAQ=m +CONFIG_USB_SERIAL_IR=m +CONFIG_USB_SERIAL_EDGEPORT=m +CONFIG_USB_SERIAL_EDGEPORT_TI=m +CONFIG_USB_SERIAL_F81232=m +CONFIG_USB_SERIAL_GARMIN=m +CONFIG_USB_SERIAL_IPW=m +CONFIG_USB_SERIAL_IUU=m +CONFIG_USB_SERIAL_KEYSPAN_PDA=m +CONFIG_USB_SERIAL_KEYSPAN=m +CONFIG_USB_SERIAL_KLSI=m +CONFIG_USB_SERIAL_KOBIL_SCT=m +CONFIG_USB_SERIAL_MCT_U232=m +CONFIG_USB_SERIAL_METRO=m +CONFIG_USB_SERIAL_MOS7720=m +CONFIG_USB_SERIAL_MOS7840=m +CONFIG_USB_SERIAL_NAVMAN=m +CONFIG_USB_SERIAL_PL2303=m +CONFIG_USB_SERIAL_OTI6858=m +CONFIG_USB_SERIAL_QCAUX=m +CONFIG_USB_SERIAL_QUALCOMM=m +CONFIG_USB_SERIAL_SPCP8X5=m +CONFIG_USB_SERIAL_SAFE=m +CONFIG_USB_SERIAL_SIERRAWIRELESS=m +CONFIG_USB_SERIAL_SYMBOL=m +CONFIG_USB_SERIAL_TI=m +CONFIG_USB_SERIAL_CYBERJACK=m +CONFIG_USB_SERIAL_XIRCOM=m +CONFIG_USB_SERIAL_OPTION=m +CONFIG_USB_SERIAL_OMNINET=m +CONFIG_USB_SERIAL_OPTICON=m +CONFIG_USB_SERIAL_XSENS_MT=m +CONFIG_USB_SERIAL_WISHBONE=m +CONFIG_USB_SERIAL_SSU100=m +CONFIG_USB_SERIAL_QT2=m +CONFIG_USB_SERIAL_DEBUG=m +CONFIG_USB_EMI62=m +CONFIG_USB_EMI26=m +CONFIG_USB_ADUTUX=m +CONFIG_USB_SEVSEG=m +CONFIG_USB_RIO500=m +CONFIG_USB_LEGOTOWER=m +CONFIG_USB_LCD=m +CONFIG_USB_CYPRESS_CY7C63=m +CONFIG_USB_CYTHERM=m +CONFIG_USB_IDMOUSE=m +CONFIG_USB_FTDI_ELAN=m +CONFIG_USB_APPLEDISPLAY=m +CONFIG_USB_LD=m +CONFIG_USB_TRANCEVIBRATOR=m +CONFIG_USB_IOWARRIOR=m +CONFIG_USB_TEST=m +CONFIG_USB_ISIGHTFW=m +CONFIG_USB_YUREX=m +CONFIG_USB_ATM=m +CONFIG_USB_SPEEDTOUCH=m +CONFIG_USB_CXACRU=m +CONFIG_USB_UEAGLEATM=m +CONFIG_USB_XUSBATM=m +CONFIG_USB_GADGET=m +CONFIG_MMC=y +CONFIG_MMC_BLOCK_MINORS=32 +CONFIG_MMC_BCM2835=y +CONFIG_MMC_BCM2835_DMA=y +CONFIG_MMC_BCM2835_SDHOST=y +CONFIG_MMC_SDHCI=y +CONFIG_MMC_SDHCI_PLTFM=y +CONFIG_MMC_SPI=m +CONFIG_LEDS_CLASS=y +CONFIG_LEDS_GPIO=y +CONFIG_LEDS_TRIGGER_TIMER=y +CONFIG_LEDS_TRIGGER_ONESHOT=y +CONFIG_LEDS_TRIGGER_HEARTBEAT=y +CONFIG_LEDS_TRIGGER_BACKLIGHT=y +CONFIG_LEDS_TRIGGER_CPU=y +CONFIG_LEDS_TRIGGER_GPIO=y +CONFIG_LEDS_TRIGGER_DEFAULT_ON=y +CONFIG_LEDS_TRIGGER_TRANSIENT=m +CONFIG_LEDS_TRIGGER_CAMERA=m +CONFIG_LEDS_TRIGGER_INPUT=y +CONFIG_LEDS_TRIGGER_PANIC=y +CONFIG_RTC_CLASS=y +# CONFIG_RTC_HCTOSYS is not set +CONFIG_RTC_DRV_ABX80X=m +CONFIG_RTC_DRV_DS1307=m +CONFIG_RTC_DRV_DS1374=m +CONFIG_RTC_DRV_DS1672=m +CONFIG_RTC_DRV_MAX6900=m +CONFIG_RTC_DRV_RS5C372=m +CONFIG_RTC_DRV_ISL1208=m +CONFIG_RTC_DRV_ISL12022=m +CONFIG_RTC_DRV_X1205=m +CONFIG_RTC_DRV_PCF8523=m +CONFIG_RTC_DRV_PCF8563=m +CONFIG_RTC_DRV_PCF8583=m +CONFIG_RTC_DRV_M41T80=m +CONFIG_RTC_DRV_BQ32K=m +CONFIG_RTC_DRV_S35390A=m +CONFIG_RTC_DRV_FM3130=m +CONFIG_RTC_DRV_RX8581=m +CONFIG_RTC_DRV_RX8025=m +CONFIG_RTC_DRV_EM3027=m +CONFIG_RTC_DRV_M41T93=m +CONFIG_RTC_DRV_M41T94=m +CONFIG_RTC_DRV_DS1302=m +CONFIG_RTC_DRV_DS1305=m +CONFIG_RTC_DRV_DS1390=m +CONFIG_RTC_DRV_R9701=m +CONFIG_RTC_DRV_RX4581=m +CONFIG_RTC_DRV_RS5C348=m +CONFIG_RTC_DRV_MAX6902=m +CONFIG_RTC_DRV_PCF2123=m +CONFIG_RTC_DRV_DS3232=m +CONFIG_RTC_DRV_PCF2127=m +CONFIG_RTC_DRV_RV3029C2=m +CONFIG_DMADEVICES=y +CONFIG_DMA_BCM2835=y +CONFIG_DMA_BCM2708=y +CONFIG_UIO=m +CONFIG_UIO_PDRV_GENIRQ=m +CONFIG_STAGING=y +CONFIG_PRISM2_USB=m +CONFIG_R8712U=m +CONFIG_R8188EU=m +CONFIG_VT6656=m +CONFIG_SPEAKUP=m +CONFIG_SPEAKUP_SYNTH_SOFT=m +CONFIG_STAGING_MEDIA=y +CONFIG_VIDEO_BCM2835=m +CONFIG_LIRC_STAGING=y +CONFIG_LIRC_RPI=m +CONFIG_LIRC_SASEM=m +CONFIG_FB_TFT=m +CONFIG_FB_TFT_AGM1264K_FL=m +CONFIG_FB_TFT_BD663474=m +CONFIG_FB_TFT_HX8340BN=m +CONFIG_FB_TFT_HX8347D=m +CONFIG_FB_TFT_HX8353D=m +CONFIG_FB_TFT_HX8357D=m +CONFIG_FB_TFT_ILI9163=m +CONFIG_FB_TFT_ILI9320=m +CONFIG_FB_TFT_ILI9325=m +CONFIG_FB_TFT_ILI9340=m +CONFIG_FB_TFT_ILI9341=m +CONFIG_FB_TFT_ILI9481=m +CONFIG_FB_TFT_ILI9486=m +CONFIG_FB_TFT_PCD8544=m +CONFIG_FB_TFT_RA8875=m +CONFIG_FB_TFT_S6D02A1=m +CONFIG_FB_TFT_S6D1121=m +CONFIG_FB_TFT_SSD1289=m +CONFIG_FB_TFT_SSD1306=m +CONFIG_FB_TFT_SSD1331=m +CONFIG_FB_TFT_SSD1351=m +CONFIG_FB_TFT_ST7735R=m +CONFIG_FB_TFT_TINYLCD=m +CONFIG_FB_TFT_TLS8204=m +CONFIG_FB_TFT_UC1701=m +CONFIG_FB_TFT_UPD161704=m +CONFIG_FB_TFT_WATTEROTT=m +CONFIG_FB_FLEX=m +CONFIG_FB_TFT_FBTFT_DEVICE=m +CONFIG_SND_BCM2835=m +CONFIG_MAILBOX=y +CONFIG_BCM2835_MBOX=y +# CONFIG_IOMMU_SUPPORT is not set +CONFIG_RASPBERRYPI_POWER=y +CONFIG_EXTCON=m +CONFIG_EXTCON_ARIZONA=m +CONFIG_IIO=m +CONFIG_IIO_BUFFER=y +CONFIG_IIO_BUFFER_CB=m +CONFIG_IIO_KFIFO_BUF=m +CONFIG_MCP320X=m +CONFIG_MCP3422=m +CONFIG_DHT11=m +CONFIG_HTU21=m +CONFIG_PWM_BCM2835=m +CONFIG_PWM_PCA9685=m +CONFIG_RASPBERRYPI_FIRMWARE=y +CONFIG_EXT4_FS=y +CONFIG_EXT4_FS_POSIX_ACL=y +CONFIG_EXT4_FS_SECURITY=y +CONFIG_REISERFS_FS=m +CONFIG_REISERFS_FS_XATTR=y +CONFIG_REISERFS_FS_POSIX_ACL=y +CONFIG_REISERFS_FS_SECURITY=y +CONFIG_JFS_FS=m +CONFIG_JFS_POSIX_ACL=y +CONFIG_JFS_SECURITY=y +CONFIG_JFS_STATISTICS=y +CONFIG_XFS_FS=m +CONFIG_XFS_QUOTA=y +CONFIG_XFS_POSIX_ACL=y +CONFIG_XFS_RT=y +CONFIG_GFS2_FS=m +CONFIG_OCFS2_FS=m +CONFIG_BTRFS_FS=m +CONFIG_BTRFS_FS_POSIX_ACL=y +CONFIG_NILFS2_FS=m +CONFIG_F2FS_FS=y +CONFIG_FANOTIFY=y +CONFIG_QFMT_V1=m +CONFIG_QFMT_V2=m +CONFIG_AUTOFS4_FS=y +CONFIG_FUSE_FS=m +CONFIG_CUSE=m +CONFIG_OVERLAY_FS=m +CONFIG_FSCACHE=y +CONFIG_FSCACHE_STATS=y +CONFIG_FSCACHE_HISTOGRAM=y +CONFIG_CACHEFILES=y +CONFIG_ISO9660_FS=m +CONFIG_JOLIET=y +CONFIG_ZISOFS=y +CONFIG_UDF_FS=m +CONFIG_MSDOS_FS=y +CONFIG_VFAT_FS=y +CONFIG_FAT_DEFAULT_IOCHARSET="ascii" +CONFIG_NTFS_FS=m +CONFIG_NTFS_RW=y +CONFIG_TMPFS=y +CONFIG_TMPFS_POSIX_ACL=y +CONFIG_ECRYPT_FS=m +CONFIG_HFS_FS=m +CONFIG_HFSPLUS_FS=m +CONFIG_JFFS2_FS=m +CONFIG_JFFS2_SUMMARY=y +CONFIG_UBIFS_FS=m +CONFIG_SQUASHFS=m +CONFIG_SQUASHFS_XATTR=y +CONFIG_SQUASHFS_LZO=y +CONFIG_SQUASHFS_XZ=y +CONFIG_NFS_FS=y +CONFIG_NFS_V3_ACL=y +CONFIG_NFS_V4=y +CONFIG_NFS_SWAP=y +CONFIG_ROOT_NFS=y +CONFIG_NFS_FSCACHE=y +CONFIG_NFSD=m +CONFIG_NFSD_V3_ACL=y +CONFIG_NFSD_V4=y +CONFIG_CIFS=m +CONFIG_CIFS_WEAK_PW_HASH=y +CONFIG_CIFS_UPCALL=y +CONFIG_CIFS_XATTR=y +CONFIG_CIFS_POSIX=y +CONFIG_CIFS_ACL=y +CONFIG_CIFS_DFS_UPCALL=y +CONFIG_CIFS_SMB2=y +CONFIG_CIFS_FSCACHE=y +CONFIG_9P_FS=m +CONFIG_9P_FS_POSIX_ACL=y +CONFIG_NLS_DEFAULT="utf8" +CONFIG_NLS_CODEPAGE_437=y +CONFIG_NLS_CODEPAGE_737=m +CONFIG_NLS_CODEPAGE_775=m +CONFIG_NLS_CODEPAGE_850=m +CONFIG_NLS_CODEPAGE_852=m +CONFIG_NLS_CODEPAGE_855=m +CONFIG_NLS_CODEPAGE_857=m +CONFIG_NLS_CODEPAGE_860=m +CONFIG_NLS_CODEPAGE_861=m +CONFIG_NLS_CODEPAGE_862=m +CONFIG_NLS_CODEPAGE_863=m +CONFIG_NLS_CODEPAGE_864=m +CONFIG_NLS_CODEPAGE_865=m +CONFIG_NLS_CODEPAGE_866=m +CONFIG_NLS_CODEPAGE_869=m +CONFIG_NLS_CODEPAGE_936=m +CONFIG_NLS_CODEPAGE_950=m +CONFIG_NLS_CODEPAGE_932=m +CONFIG_NLS_CODEPAGE_949=m +CONFIG_NLS_CODEPAGE_874=m +CONFIG_NLS_ISO8859_8=m +CONFIG_NLS_CODEPAGE_1250=m +CONFIG_NLS_CODEPAGE_1251=m +CONFIG_NLS_ASCII=y +CONFIG_NLS_ISO8859_1=m +CONFIG_NLS_ISO8859_2=m +CONFIG_NLS_ISO8859_3=m +CONFIG_NLS_ISO8859_4=m +CONFIG_NLS_ISO8859_5=m +CONFIG_NLS_ISO8859_6=m +CONFIG_NLS_ISO8859_7=m +CONFIG_NLS_ISO8859_9=m +CONFIG_NLS_ISO8859_13=m +CONFIG_NLS_ISO8859_14=m +CONFIG_NLS_ISO8859_15=m +CONFIG_NLS_KOI8_R=m +CONFIG_NLS_KOI8_U=m +CONFIG_DLM=m +CONFIG_PRINTK_TIME=y +CONFIG_BOOT_PRINTK_DELAY=y +CONFIG_DEBUG_MEMORY_INIT=y +CONFIG_DETECT_HUNG_TASK=y +# CONFIG_RCU_TRACE is not set +CONFIG_LATENCYTOP=y +CONFIG_IRQSOFF_TRACER=y +CONFIG_SCHED_TRACER=y +CONFIG_STACK_TRACER=y +CONFIG_BLK_DEV_IO_TRACE=y +CONFIG_FUNCTION_PROFILER=y +CONFIG_KGDB=y +CONFIG_KGDB_KDB=y +CONFIG_KDB_KEYBOARD=y +CONFIG_CRYPTO_USER=m +CONFIG_CRYPTO_CBC=y +CONFIG_CRYPTO_CTS=m +CONFIG_CRYPTO_XTS=m +CONFIG_CRYPTO_XCBC=m +CONFIG_CRYPTO_TGR192=m +CONFIG_CRYPTO_WP512=m +CONFIG_CRYPTO_CAST5=m +CONFIG_CRYPTO_DES=y +CONFIG_CRYPTO_LZ4=m +CONFIG_CRYPTO_USER_API_SKCIPHER=m +# CONFIG_CRYPTO_HW is not set +CONFIG_ARM_CRYPTO=y +CONFIG_CRYPTO_SHA1_ARM_NEON=m +CONFIG_CRYPTO_AES_ARM_BS=m +CONFIG_CRC_ITU_T=y +CONFIG_LIBCRC32C=y diff --git a/arch/arm/configs/bcmrpi_defconfig b/arch/arm/configs/bcmrpi_defconfig new file mode 100644 index 0000000000000000000000000000000000000000..046f3e8757ef0f794c802171690528d31fee9deb --- /dev/null +++ b/arch/arm/configs/bcmrpi_defconfig @@ -0,0 +1,1317 @@ +# CONFIG_LOCALVERSION_AUTO is not set +CONFIG_SYSVIPC=y +CONFIG_POSIX_MQUEUE=y +CONFIG_NO_HZ=y +CONFIG_HIGH_RES_TIMERS=y +CONFIG_BSD_PROCESS_ACCT=y +CONFIG_BSD_PROCESS_ACCT_V3=y +CONFIG_TASKSTATS=y +CONFIG_TASK_DELAY_ACCT=y +CONFIG_TASK_XACCT=y +CONFIG_TASK_IO_ACCOUNTING=y +CONFIG_IKCONFIG=m +CONFIG_IKCONFIG_PROC=y +CONFIG_MEMCG=y +CONFIG_BLK_CGROUP=y +CONFIG_CGROUP_FREEZER=y +CONFIG_CPUSETS=y +CONFIG_CGROUP_DEVICE=y +CONFIG_CGROUP_CPUACCT=y +CONFIG_NAMESPACES=y +CONFIG_USER_NS=y +CONFIG_SCHED_AUTOGROUP=y +CONFIG_BLK_DEV_INITRD=y +CONFIG_EMBEDDED=y +# CONFIG_COMPAT_BRK is not set +CONFIG_PROFILING=y +CONFIG_OPROFILE=m +CONFIG_KPROBES=y +CONFIG_JUMP_LABEL=y +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +CONFIG_MODVERSIONS=y +CONFIG_MODULE_SRCVERSION_ALL=y +CONFIG_BLK_DEV_THROTTLING=y +CONFIG_PARTITION_ADVANCED=y +CONFIG_MAC_PARTITION=y +CONFIG_CFQ_GROUP_IOSCHED=y +CONFIG_ARCH_MULTI_V6=y +# CONFIG_ARCH_MULTI_V7 is not set +CONFIG_ARCH_BCM=y +CONFIG_ARCH_BCM2835=y +# CONFIG_CACHE_L2X0 is not set +CONFIG_PREEMPT_VOLUNTARY=y +CONFIG_AEABI=y +# CONFIG_CPU_SW_DOMAIN_PAN is not set +CONFIG_CLEANCACHE=y +CONFIG_FRONTSWAP=y +CONFIG_CMA=y +CONFIG_ZSMALLOC=m +CONFIG_PGTABLE_MAPPING=y +CONFIG_UACCESS_WITH_MEMCPY=y +CONFIG_SECCOMP=y +# CONFIG_ATAGS is not set +CONFIG_ZBOOT_ROM_TEXT=0x0 +CONFIG_ZBOOT_ROM_BSS=0x0 +CONFIG_CMDLINE="console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait" +CONFIG_CPU_FREQ=y +CONFIG_CPU_FREQ_STAT=y +CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE=y +CONFIG_CPU_FREQ_GOV_PERFORMANCE=y +CONFIG_CPU_FREQ_GOV_USERSPACE=y +CONFIG_CPU_FREQ_GOV_ONDEMAND=y +CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y +CONFIG_VFP=y +CONFIG_BINFMT_MISC=m +# CONFIG_SUSPEND is not set +CONFIG_PM=y +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_XFRM_USER=y +CONFIG_NET_KEY=m +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_IP_MULTIPLE_TABLES=y +CONFIG_IP_ROUTE_MULTIPATH=y +CONFIG_IP_ROUTE_VERBOSE=y +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +CONFIG_IP_PNP_RARP=y +CONFIG_NET_IPIP=m +CONFIG_NET_IPGRE_DEMUX=m +CONFIG_NET_IPGRE=m +CONFIG_IP_MROUTE=y +CONFIG_IP_MROUTE_MULTIPLE_TABLES=y +CONFIG_IP_PIMSM_V1=y +CONFIG_IP_PIMSM_V2=y +CONFIG_SYN_COOKIES=y +CONFIG_INET_AH=m +CONFIG_INET_ESP=m +CONFIG_INET_IPCOMP=m +CONFIG_INET_XFRM_MODE_TRANSPORT=m +CONFIG_INET_XFRM_MODE_TUNNEL=m +CONFIG_INET_XFRM_MODE_BEET=m +CONFIG_INET_DIAG=m +CONFIG_TCP_CONG_ADVANCED=y +CONFIG_TCP_CONG_BBR=m +CONFIG_IPV6=m +CONFIG_IPV6_ROUTER_PREF=y +CONFIG_INET6_AH=m +CONFIG_INET6_ESP=m +CONFIG_INET6_IPCOMP=m +CONFIG_IPV6_TUNNEL=m +CONFIG_IPV6_MULTIPLE_TABLES=y +CONFIG_IPV6_SUBTREES=y +CONFIG_IPV6_MROUTE=y +CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y +CONFIG_IPV6_PIMSM_V2=y +CONFIG_NETFILTER=y +CONFIG_NF_CONNTRACK=m +CONFIG_NF_CONNTRACK_ZONES=y +CONFIG_NF_CONNTRACK_EVENTS=y +CONFIG_NF_CONNTRACK_TIMESTAMP=y +CONFIG_NF_CONNTRACK_AMANDA=m +CONFIG_NF_CONNTRACK_FTP=m +CONFIG_NF_CONNTRACK_H323=m +CONFIG_NF_CONNTRACK_IRC=m +CONFIG_NF_CONNTRACK_NETBIOS_NS=m +CONFIG_NF_CONNTRACK_SNMP=m +CONFIG_NF_CONNTRACK_PPTP=m +CONFIG_NF_CONNTRACK_SANE=m +CONFIG_NF_CONNTRACK_SIP=m +CONFIG_NF_CONNTRACK_TFTP=m +CONFIG_NF_CT_NETLINK=m +CONFIG_NETFILTER_XT_SET=m +CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m +CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m +CONFIG_NETFILTER_XT_TARGET_CONNMARK=m +CONFIG_NETFILTER_XT_TARGET_DSCP=m +CONFIG_NETFILTER_XT_TARGET_HMARK=m +CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m +CONFIG_NETFILTER_XT_TARGET_LED=m +CONFIG_NETFILTER_XT_TARGET_LOG=m +CONFIG_NETFILTER_XT_TARGET_MARK=m +CONFIG_NETFILTER_XT_TARGET_NFLOG=m +CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m +CONFIG_NETFILTER_XT_TARGET_NOTRACK=m +CONFIG_NETFILTER_XT_TARGET_TEE=m +CONFIG_NETFILTER_XT_TARGET_TPROXY=m +CONFIG_NETFILTER_XT_TARGET_TRACE=m +CONFIG_NETFILTER_XT_TARGET_TCPMSS=m +CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m +CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m +CONFIG_NETFILTER_XT_MATCH_BPF=m +CONFIG_NETFILTER_XT_MATCH_CLUSTER=m +CONFIG_NETFILTER_XT_MATCH_COMMENT=m +CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m +CONFIG_NETFILTER_XT_MATCH_CONNLABEL=m +CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m +CONFIG_NETFILTER_XT_MATCH_CONNMARK=m +CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m +CONFIG_NETFILTER_XT_MATCH_CPU=m +CONFIG_NETFILTER_XT_MATCH_DCCP=m +CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m +CONFIG_NETFILTER_XT_MATCH_DSCP=m +CONFIG_NETFILTER_XT_MATCH_ESP=m +CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m +CONFIG_NETFILTER_XT_MATCH_HELPER=m +CONFIG_NETFILTER_XT_MATCH_IPRANGE=m +CONFIG_NETFILTER_XT_MATCH_IPVS=m +CONFIG_NETFILTER_XT_MATCH_LENGTH=m +CONFIG_NETFILTER_XT_MATCH_LIMIT=m +CONFIG_NETFILTER_XT_MATCH_MAC=m +CONFIG_NETFILTER_XT_MATCH_MARK=m +CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m +CONFIG_NETFILTER_XT_MATCH_NFACCT=m +CONFIG_NETFILTER_XT_MATCH_OSF=m +CONFIG_NETFILTER_XT_MATCH_OWNER=m +CONFIG_NETFILTER_XT_MATCH_POLICY=m +CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m +CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m +CONFIG_NETFILTER_XT_MATCH_QUOTA=m +CONFIG_NETFILTER_XT_MATCH_RATEEST=m +CONFIG_NETFILTER_XT_MATCH_REALM=m +CONFIG_NETFILTER_XT_MATCH_RECENT=m +CONFIG_NETFILTER_XT_MATCH_STATE=m +CONFIG_NETFILTER_XT_MATCH_STATISTIC=m +CONFIG_NETFILTER_XT_MATCH_STRING=m +CONFIG_NETFILTER_XT_MATCH_TCPMSS=m +CONFIG_NETFILTER_XT_MATCH_TIME=m +CONFIG_NETFILTER_XT_MATCH_U32=m +CONFIG_IP_SET=m +CONFIG_IP_SET_BITMAP_IP=m +CONFIG_IP_SET_BITMAP_IPMAC=m +CONFIG_IP_SET_BITMAP_PORT=m +CONFIG_IP_SET_HASH_IP=m +CONFIG_IP_SET_HASH_IPPORT=m +CONFIG_IP_SET_HASH_IPPORTIP=m +CONFIG_IP_SET_HASH_IPPORTNET=m +CONFIG_IP_SET_HASH_NET=m +CONFIG_IP_SET_HASH_NETPORT=m +CONFIG_IP_SET_HASH_NETIFACE=m +CONFIG_IP_SET_LIST_SET=m +CONFIG_IP_VS=m +CONFIG_IP_VS_PROTO_TCP=y +CONFIG_IP_VS_PROTO_UDP=y +CONFIG_IP_VS_PROTO_ESP=y +CONFIG_IP_VS_PROTO_AH=y +CONFIG_IP_VS_PROTO_SCTP=y +CONFIG_IP_VS_RR=m +CONFIG_IP_VS_WRR=m +CONFIG_IP_VS_LC=m +CONFIG_IP_VS_WLC=m +CONFIG_IP_VS_LBLC=m +CONFIG_IP_VS_LBLCR=m +CONFIG_IP_VS_DH=m +CONFIG_IP_VS_SH=m +CONFIG_IP_VS_SED=m +CONFIG_IP_VS_NQ=m +CONFIG_IP_VS_FTP=m +CONFIG_IP_VS_PE_SIP=m +CONFIG_NF_CONNTRACK_IPV4=m +CONFIG_IP_NF_IPTABLES=m +CONFIG_IP_NF_MATCH_AH=m +CONFIG_IP_NF_MATCH_ECN=m +CONFIG_IP_NF_MATCH_RPFILTER=m +CONFIG_IP_NF_MATCH_TTL=m +CONFIG_IP_NF_FILTER=m +CONFIG_IP_NF_TARGET_REJECT=m +CONFIG_IP_NF_NAT=m +CONFIG_IP_NF_TARGET_MASQUERADE=m +CONFIG_IP_NF_TARGET_NETMAP=m +CONFIG_IP_NF_TARGET_REDIRECT=m +CONFIG_IP_NF_MANGLE=m +CONFIG_IP_NF_TARGET_CLUSTERIP=m +CONFIG_IP_NF_TARGET_ECN=m +CONFIG_IP_NF_TARGET_TTL=m +CONFIG_IP_NF_RAW=m +CONFIG_IP_NF_ARPTABLES=m +CONFIG_IP_NF_ARPFILTER=m +CONFIG_IP_NF_ARP_MANGLE=m +CONFIG_NF_CONNTRACK_IPV6=m +CONFIG_IP6_NF_IPTABLES=m +CONFIG_IP6_NF_MATCH_AH=m +CONFIG_IP6_NF_MATCH_EUI64=m +CONFIG_IP6_NF_MATCH_FRAG=m +CONFIG_IP6_NF_MATCH_OPTS=m +CONFIG_IP6_NF_MATCH_HL=m +CONFIG_IP6_NF_MATCH_IPV6HEADER=m +CONFIG_IP6_NF_MATCH_MH=m +CONFIG_IP6_NF_MATCH_RPFILTER=m +CONFIG_IP6_NF_MATCH_RT=m +CONFIG_IP6_NF_TARGET_HL=m +CONFIG_IP6_NF_FILTER=m +CONFIG_IP6_NF_TARGET_REJECT=m +CONFIG_IP6_NF_MANGLE=m +CONFIG_IP6_NF_RAW=m +CONFIG_IP6_NF_NAT=m +CONFIG_IP6_NF_TARGET_MASQUERADE=m +CONFIG_IP6_NF_TARGET_NPT=m +CONFIG_BRIDGE_NF_EBTABLES=m +CONFIG_BRIDGE_EBT_BROUTE=m +CONFIG_BRIDGE_EBT_T_FILTER=m +CONFIG_BRIDGE_EBT_T_NAT=m +CONFIG_BRIDGE_EBT_802_3=m +CONFIG_BRIDGE_EBT_AMONG=m +CONFIG_BRIDGE_EBT_ARP=m +CONFIG_BRIDGE_EBT_IP=m +CONFIG_BRIDGE_EBT_IP6=m +CONFIG_BRIDGE_EBT_LIMIT=m +CONFIG_BRIDGE_EBT_MARK=m +CONFIG_BRIDGE_EBT_PKTTYPE=m +CONFIG_BRIDGE_EBT_STP=m +CONFIG_BRIDGE_EBT_VLAN=m +CONFIG_BRIDGE_EBT_ARPREPLY=m +CONFIG_BRIDGE_EBT_DNAT=m +CONFIG_BRIDGE_EBT_MARK_T=m +CONFIG_BRIDGE_EBT_REDIRECT=m +CONFIG_BRIDGE_EBT_SNAT=m +CONFIG_BRIDGE_EBT_LOG=m +CONFIG_BRIDGE_EBT_NFLOG=m +CONFIG_SCTP_COOKIE_HMAC_SHA1=y +CONFIG_ATM=m +CONFIG_L2TP=m +CONFIG_L2TP_V3=y +CONFIG_L2TP_IP=m +CONFIG_L2TP_ETH=m +CONFIG_BRIDGE=m +CONFIG_VLAN_8021Q=m +CONFIG_VLAN_8021Q_GVRP=y +CONFIG_ATALK=m +CONFIG_6LOWPAN=m +CONFIG_IEEE802154=m +CONFIG_IEEE802154_6LOWPAN=m +CONFIG_MAC802154=m +CONFIG_NET_SCHED=y +CONFIG_NET_SCH_CBQ=m +CONFIG_NET_SCH_HTB=m +CONFIG_NET_SCH_HFSC=m +CONFIG_NET_SCH_ATM=m +CONFIG_NET_SCH_PRIO=m +CONFIG_NET_SCH_MULTIQ=m +CONFIG_NET_SCH_RED=m +CONFIG_NET_SCH_SFB=m +CONFIG_NET_SCH_SFQ=m +CONFIG_NET_SCH_TEQL=m +CONFIG_NET_SCH_TBF=m +CONFIG_NET_SCH_GRED=m +CONFIG_NET_SCH_DSMARK=m +CONFIG_NET_SCH_NETEM=m +CONFIG_NET_SCH_DRR=m +CONFIG_NET_SCH_MQPRIO=m +CONFIG_NET_SCH_CHOKE=m +CONFIG_NET_SCH_QFQ=m +CONFIG_NET_SCH_CODEL=m +CONFIG_NET_SCH_FQ_CODEL=m +CONFIG_NET_SCH_FQ=m +CONFIG_NET_SCH_HHF=m +CONFIG_NET_SCH_PIE=m +CONFIG_NET_SCH_INGRESS=m +CONFIG_NET_SCH_PLUG=m +CONFIG_NET_CLS_BASIC=m +CONFIG_NET_CLS_TCINDEX=m +CONFIG_NET_CLS_ROUTE4=m +CONFIG_NET_CLS_FW=m +CONFIG_NET_CLS_U32=m +CONFIG_CLS_U32_MARK=y +CONFIG_NET_CLS_RSVP=m +CONFIG_NET_CLS_RSVP6=m +CONFIG_NET_CLS_FLOW=m +CONFIG_NET_CLS_CGROUP=m +CONFIG_NET_EMATCH=y +CONFIG_NET_EMATCH_CMP=m +CONFIG_NET_EMATCH_NBYTE=m +CONFIG_NET_EMATCH_U32=m +CONFIG_NET_EMATCH_META=m +CONFIG_NET_EMATCH_TEXT=m +CONFIG_NET_EMATCH_IPSET=m +CONFIG_NET_CLS_ACT=y +CONFIG_NET_ACT_POLICE=m +CONFIG_NET_ACT_GACT=m +CONFIG_GACT_PROB=y +CONFIG_NET_ACT_MIRRED=m +CONFIG_NET_ACT_IPT=m +CONFIG_NET_ACT_NAT=m +CONFIG_NET_ACT_PEDIT=m +CONFIG_NET_ACT_SIMP=m +CONFIG_NET_ACT_SKBEDIT=m +CONFIG_NET_ACT_CSUM=m +CONFIG_BATMAN_ADV=m +CONFIG_OPENVSWITCH=m +CONFIG_NET_PKTGEN=m +CONFIG_HAMRADIO=y +CONFIG_AX25=m +CONFIG_NETROM=m +CONFIG_ROSE=m +CONFIG_MKISS=m +CONFIG_6PACK=m +CONFIG_BPQETHER=m +CONFIG_BAYCOM_SER_FDX=m +CONFIG_BAYCOM_SER_HDX=m +CONFIG_YAM=m +CONFIG_CAN=m +CONFIG_CAN_VCAN=m +CONFIG_CAN_SLCAN=m +CONFIG_CAN_MCP251X=m +CONFIG_IRDA=m +CONFIG_IRLAN=m +CONFIG_IRNET=m +CONFIG_IRCOMM=m +CONFIG_IRDA_ULTRA=y +CONFIG_IRDA_CACHE_LAST_LSAP=y +CONFIG_IRDA_FAST_RR=y +CONFIG_IRTTY_SIR=m +CONFIG_KINGSUN_DONGLE=m +CONFIG_KSDAZZLE_DONGLE=m +CONFIG_KS959_DONGLE=m +CONFIG_USB_IRDA=m +CONFIG_SIGMATEL_FIR=m +CONFIG_MCS_FIR=m +CONFIG_BT=m +CONFIG_BT_RFCOMM=m +CONFIG_BT_RFCOMM_TTY=y +CONFIG_BT_BNEP=m +CONFIG_BT_BNEP_MC_FILTER=y +CONFIG_BT_BNEP_PROTO_FILTER=y +CONFIG_BT_HIDP=m +CONFIG_BT_6LOWPAN=m +CONFIG_BT_HCIBTUSB=m +CONFIG_BT_HCIUART=m +CONFIG_BT_HCIUART_3WIRE=y +CONFIG_BT_HCIUART_BCM=y +CONFIG_BT_HCIBCM203X=m +CONFIG_BT_HCIBPA10X=m +CONFIG_BT_HCIBFUSB=m +CONFIG_BT_HCIVHCI=m +CONFIG_BT_MRVL=m +CONFIG_BT_MRVL_SDIO=m +CONFIG_BT_ATH3K=m +CONFIG_BT_WILINK=m +CONFIG_CFG80211=m +CONFIG_MAC80211=m +CONFIG_MAC80211_MESH=y +CONFIG_WIMAX=m +CONFIG_RFKILL=m +CONFIG_RFKILL_INPUT=y +CONFIG_NET_9P=m +CONFIG_NFC=m +CONFIG_DEVTMPFS=y +CONFIG_DEVTMPFS_MOUNT=y +CONFIG_DMA_CMA=y +CONFIG_CMA_SIZE_MBYTES=5 +CONFIG_MTD=m +CONFIG_MTD_BLOCK=m +CONFIG_MTD_M25P80=m +CONFIG_MTD_NAND=m +CONFIG_MTD_SPI_NOR=m +CONFIG_MTD_UBI=m +CONFIG_OF_CONFIGFS=y +CONFIG_ZRAM=m +CONFIG_BLK_DEV_LOOP=y +CONFIG_BLK_DEV_CRYPTOLOOP=m +CONFIG_BLK_DEV_DRBD=m +CONFIG_BLK_DEV_NBD=m +CONFIG_BLK_DEV_RAM=y +CONFIG_CDROM_PKTCDVD=m +CONFIG_ATA_OVER_ETH=m +CONFIG_EEPROM_AT24=m +CONFIG_TI_ST=m +CONFIG_SCSI=y +# CONFIG_SCSI_PROC_FS is not set +CONFIG_BLK_DEV_SD=y +CONFIG_CHR_DEV_ST=m +CONFIG_CHR_DEV_OSST=m +CONFIG_BLK_DEV_SR=m +CONFIG_CHR_DEV_SG=m +CONFIG_SCSI_ISCSI_ATTRS=y +CONFIG_ISCSI_TCP=m +CONFIG_ISCSI_BOOT_SYSFS=m +CONFIG_MD=y +CONFIG_MD_LINEAR=m +CONFIG_MD_RAID0=m +CONFIG_BLK_DEV_DM=m +CONFIG_DM_CRYPT=m +CONFIG_DM_SNAPSHOT=m +CONFIG_DM_THIN_PROVISIONING=m +CONFIG_DM_MIRROR=m +CONFIG_DM_LOG_USERSPACE=m +CONFIG_DM_RAID=m +CONFIG_DM_ZERO=m +CONFIG_DM_DELAY=m +CONFIG_NETDEVICES=y +CONFIG_BONDING=m +CONFIG_DUMMY=m +CONFIG_IFB=m +CONFIG_MACVLAN=m +CONFIG_VXLAN=m +CONFIG_NETCONSOLE=m +CONFIG_TUN=m +CONFIG_VETH=m +CONFIG_ENC28J60=m +CONFIG_QCA7000=m +CONFIG_MDIO_BITBANG=m +CONFIG_PPP=m +CONFIG_PPP_BSDCOMP=m +CONFIG_PPP_DEFLATE=m +CONFIG_PPP_FILTER=y +CONFIG_PPP_MPPE=m +CONFIG_PPP_MULTILINK=y +CONFIG_PPPOATM=m +CONFIG_PPPOE=m +CONFIG_PPPOL2TP=m +CONFIG_PPP_ASYNC=m +CONFIG_PPP_SYNC_TTY=m +CONFIG_SLIP=m +CONFIG_SLIP_COMPRESSED=y +CONFIG_SLIP_SMART=y +CONFIG_USB_CATC=m +CONFIG_USB_KAWETH=m +CONFIG_USB_PEGASUS=m +CONFIG_USB_RTL8150=m +CONFIG_USB_RTL8152=m +CONFIG_USB_USBNET=y +CONFIG_USB_NET_AX8817X=m +CONFIG_USB_NET_AX88179_178A=m +CONFIG_USB_NET_CDCETHER=m +CONFIG_USB_NET_CDC_EEM=m +CONFIG_USB_NET_CDC_NCM=m +CONFIG_USB_NET_HUAWEI_CDC_NCM=m +CONFIG_USB_NET_CDC_MBIM=m +CONFIG_USB_NET_DM9601=m +CONFIG_USB_NET_SR9700=m +CONFIG_USB_NET_SR9800=m +CONFIG_USB_NET_SMSC75XX=m +CONFIG_USB_NET_SMSC95XX=y +CONFIG_USB_NET_GL620A=m +CONFIG_USB_NET_NET1080=m +CONFIG_USB_NET_PLUSB=m +CONFIG_USB_NET_MCS7830=m +CONFIG_USB_NET_CDC_SUBSET=m +CONFIG_USB_ALI_M5632=y +CONFIG_USB_AN2720=y +CONFIG_USB_EPSON2888=y +CONFIG_USB_KC2190=y +CONFIG_USB_NET_ZAURUS=m +CONFIG_USB_NET_CX82310_ETH=m +CONFIG_USB_NET_KALMIA=m +CONFIG_USB_NET_QMI_WWAN=m +CONFIG_USB_HSO=m +CONFIG_USB_NET_INT51X1=m +CONFIG_USB_IPHETH=m +CONFIG_USB_SIERRA_NET=m +CONFIG_USB_VL600=m +CONFIG_ATH9K=m +CONFIG_ATH9K_HTC=m +CONFIG_CARL9170=m +CONFIG_ATH6KL=m +CONFIG_ATH6KL_USB=m +CONFIG_AR5523=m +CONFIG_AT76C50X_USB=m +CONFIG_B43=m +# CONFIG_B43_PHY_N is not set +CONFIG_B43LEGACY=m +CONFIG_BRCMFMAC=m +CONFIG_BRCMFMAC_USB=y +CONFIG_HOSTAP=m +CONFIG_P54_COMMON=m +CONFIG_P54_USB=m +CONFIG_LIBERTAS=m +CONFIG_LIBERTAS_USB=m +CONFIG_LIBERTAS_SDIO=m +CONFIG_LIBERTAS_THINFIRM=m +CONFIG_LIBERTAS_THINFIRM_USB=m +CONFIG_MWIFIEX=m +CONFIG_MWIFIEX_SDIO=m +CONFIG_MT7601U=m +CONFIG_RT2X00=m +CONFIG_RT2500USB=m +CONFIG_RT73USB=m +CONFIG_RT2800USB=m +CONFIG_RT2800USB_RT3573=y +CONFIG_RT2800USB_RT53XX=y +CONFIG_RT2800USB_RT55XX=y +CONFIG_RT2800USB_UNKNOWN=y +CONFIG_RTL8187=m +CONFIG_RTL8192CU=m +CONFIG_RTL8XXXU=m +CONFIG_USB_ZD1201=m +CONFIG_ZD1211RW=m +CONFIG_MAC80211_HWSIM=m +CONFIG_USB_NET_RNDIS_WLAN=m +CONFIG_WIMAX_I2400M_USB=m +CONFIG_IEEE802154_AT86RF230=m +CONFIG_IEEE802154_MRF24J40=m +CONFIG_IEEE802154_CC2520=m +CONFIG_INPUT_POLLDEV=m +CONFIG_INPUT_MOUSEDEV=y +CONFIG_INPUT_JOYDEV=m +CONFIG_INPUT_EVDEV=m +# CONFIG_KEYBOARD_ATKBD is not set +CONFIG_KEYBOARD_GPIO=m +# CONFIG_INPUT_MOUSE is not set +CONFIG_INPUT_JOYSTICK=y +CONFIG_JOYSTICK_IFORCE=m +CONFIG_JOYSTICK_IFORCE_USB=y +CONFIG_JOYSTICK_XPAD=m +CONFIG_JOYSTICK_XPAD_FF=y +CONFIG_JOYSTICK_XPAD_LEDS=y +CONFIG_JOYSTICK_RPISENSE=m +CONFIG_INPUT_TOUCHSCREEN=y +CONFIG_TOUCHSCREEN_ADS7846=m +CONFIG_TOUCHSCREEN_EGALAX=m +CONFIG_TOUCHSCREEN_RPI_FT5406=m +CONFIG_TOUCHSCREEN_USB_COMPOSITE=m +CONFIG_TOUCHSCREEN_STMPE=m +CONFIG_INPUT_MISC=y +CONFIG_INPUT_AD714X=m +CONFIG_INPUT_ATI_REMOTE2=m +CONFIG_INPUT_KEYSPAN_REMOTE=m +CONFIG_INPUT_POWERMATE=m +CONFIG_INPUT_YEALINK=m +CONFIG_INPUT_CM109=m +CONFIG_INPUT_UINPUT=m +CONFIG_INPUT_GPIO_ROTARY_ENCODER=m +CONFIG_INPUT_ADXL34X=m +CONFIG_INPUT_CMA3000=m +CONFIG_SERIO=m +CONFIG_SERIO_RAW=m +CONFIG_GAMEPORT=m +CONFIG_GAMEPORT_NS558=m +CONFIG_GAMEPORT_L4=m +CONFIG_BRCM_CHAR_DRIVERS=y +CONFIG_BCM_VCIO=y +CONFIG_BCM_VC_SM=y +CONFIG_BCM2835_DEVGPIOMEM=y +# CONFIG_LEGACY_PTYS is not set +CONFIG_SERIAL_8250=y +# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set +CONFIG_SERIAL_8250_CONSOLE=y +# CONFIG_SERIAL_8250_DMA is not set +CONFIG_SERIAL_8250_NR_UARTS=1 +CONFIG_SERIAL_8250_RUNTIME_UARTS=0 +CONFIG_SERIAL_8250_EXTENDED=y +CONFIG_SERIAL_8250_SHARE_IRQ=y +CONFIG_SERIAL_8250_BCM2835AUX=y +CONFIG_SERIAL_OF_PLATFORM=y +CONFIG_SERIAL_AMBA_PL011=y +CONFIG_SERIAL_AMBA_PL011_CONSOLE=y +CONFIG_SERIAL_SC16IS7XX=m +CONFIG_SERIAL_SC16IS7XX_SPI=y +CONFIG_TTY_PRINTK=y +CONFIG_HW_RANDOM=y +CONFIG_RAW_DRIVER=y +CONFIG_I2C=y +CONFIG_I2C_CHARDEV=m +CONFIG_I2C_MUX_PCA954x=m +CONFIG_I2C_BCM2708=m +CONFIG_I2C_BCM2835=m +CONFIG_I2C_GPIO=m +CONFIG_SPI=y +CONFIG_SPI_BCM2835=m +CONFIG_SPI_BCM2835AUX=m +CONFIG_SPI_SPIDEV=y +CONFIG_PPS=m +CONFIG_PPS_CLIENT_LDISC=m +CONFIG_PPS_CLIENT_GPIO=m +CONFIG_GPIO_SYSFS=y +CONFIG_GPIO_ARIZONA=m +CONFIG_GPIO_STMPE=y +CONFIG_GPIO_MCP23S08=m +CONFIG_W1=m +CONFIG_W1_MASTER_DS2490=m +CONFIG_W1_MASTER_DS2482=m +CONFIG_W1_MASTER_DS1WM=m +CONFIG_W1_MASTER_GPIO=m +CONFIG_W1_SLAVE_THERM=m +CONFIG_W1_SLAVE_SMEM=m +CONFIG_W1_SLAVE_DS2408=m +CONFIG_W1_SLAVE_DS2413=m +CONFIG_W1_SLAVE_DS2406=m +CONFIG_W1_SLAVE_DS2423=m +CONFIG_W1_SLAVE_DS2431=m +CONFIG_W1_SLAVE_DS2433=m +CONFIG_W1_SLAVE_DS2760=m +CONFIG_W1_SLAVE_DS2780=m +CONFIG_W1_SLAVE_DS2781=m +CONFIG_W1_SLAVE_DS28E04=m +CONFIG_W1_SLAVE_BQ27000=m +CONFIG_POWER_RESET=y +CONFIG_POWER_RESET_GPIO=y +CONFIG_BATTERY_DS2760=m +CONFIG_HWMON=m +CONFIG_SENSORS_LM75=m +CONFIG_SENSORS_SHT21=m +CONFIG_SENSORS_SHTC1=m +CONFIG_SENSORS_ADS1015=m +CONFIG_SENSORS_INA2XX=m +CONFIG_THERMAL=y +CONFIG_THERMAL_BCM2835=y +CONFIG_WATCHDOG=y +CONFIG_BCM2835_WDT=y +CONFIG_MFD_STMPE=y +CONFIG_STMPE_SPI=y +CONFIG_MFD_ARIZONA_I2C=m +CONFIG_MFD_ARIZONA_SPI=m +CONFIG_MFD_WM5102=y +CONFIG_REGULATOR=y +CONFIG_REGULATOR_FIXED_VOLTAGE=m +CONFIG_REGULATOR_ARIZONA=m +CONFIG_MEDIA_SUPPORT=m +CONFIG_MEDIA_CAMERA_SUPPORT=y +CONFIG_MEDIA_ANALOG_TV_SUPPORT=y +CONFIG_MEDIA_DIGITAL_TV_SUPPORT=y +CONFIG_MEDIA_RADIO_SUPPORT=y +CONFIG_MEDIA_RC_SUPPORT=y +CONFIG_MEDIA_CONTROLLER=y +CONFIG_LIRC=m +CONFIG_RC_DEVICES=y +CONFIG_RC_ATI_REMOTE=m +CONFIG_IR_IMON=m +CONFIG_IR_MCEUSB=m +CONFIG_IR_REDRAT3=m +CONFIG_IR_STREAMZAP=m +CONFIG_IR_IGUANA=m +CONFIG_IR_TTUSBIR=m +CONFIG_RC_LOOPBACK=m +CONFIG_IR_GPIO_CIR=m +CONFIG_MEDIA_USB_SUPPORT=y +CONFIG_USB_VIDEO_CLASS=m +CONFIG_USB_M5602=m +CONFIG_USB_STV06XX=m +CONFIG_USB_GL860=m +CONFIG_USB_GSPCA_BENQ=m +CONFIG_USB_GSPCA_CONEX=m +CONFIG_USB_GSPCA_CPIA1=m +CONFIG_USB_GSPCA_DTCS033=m +CONFIG_USB_GSPCA_ETOMS=m +CONFIG_USB_GSPCA_FINEPIX=m +CONFIG_USB_GSPCA_JEILINJ=m +CONFIG_USB_GSPCA_JL2005BCD=m +CONFIG_USB_GSPCA_KINECT=m +CONFIG_USB_GSPCA_KONICA=m +CONFIG_USB_GSPCA_MARS=m +CONFIG_USB_GSPCA_MR97310A=m +CONFIG_USB_GSPCA_NW80X=m +CONFIG_USB_GSPCA_OV519=m +CONFIG_USB_GSPCA_OV534=m +CONFIG_USB_GSPCA_OV534_9=m +CONFIG_USB_GSPCA_PAC207=m +CONFIG_USB_GSPCA_PAC7302=m +CONFIG_USB_GSPCA_PAC7311=m +CONFIG_USB_GSPCA_SE401=m +CONFIG_USB_GSPCA_SN9C2028=m +CONFIG_USB_GSPCA_SN9C20X=m +CONFIG_USB_GSPCA_SONIXB=m +CONFIG_USB_GSPCA_SONIXJ=m +CONFIG_USB_GSPCA_SPCA500=m +CONFIG_USB_GSPCA_SPCA501=m +CONFIG_USB_GSPCA_SPCA505=m +CONFIG_USB_GSPCA_SPCA506=m +CONFIG_USB_GSPCA_SPCA508=m +CONFIG_USB_GSPCA_SPCA561=m +CONFIG_USB_GSPCA_SPCA1528=m +CONFIG_USB_GSPCA_SQ905=m +CONFIG_USB_GSPCA_SQ905C=m +CONFIG_USB_GSPCA_SQ930X=m +CONFIG_USB_GSPCA_STK014=m +CONFIG_USB_GSPCA_STK1135=m +CONFIG_USB_GSPCA_STV0680=m +CONFIG_USB_GSPCA_SUNPLUS=m +CONFIG_USB_GSPCA_T613=m +CONFIG_USB_GSPCA_TOPRO=m +CONFIG_USB_GSPCA_TV8532=m +CONFIG_USB_GSPCA_VC032X=m +CONFIG_USB_GSPCA_VICAM=m +CONFIG_USB_GSPCA_XIRLINK_CIT=m +CONFIG_USB_GSPCA_ZC3XX=m +CONFIG_USB_PWC=m +CONFIG_VIDEO_CPIA2=m +CONFIG_USB_ZR364XX=m +CONFIG_USB_STKWEBCAM=m +CONFIG_USB_S2255=m +CONFIG_VIDEO_USBTV=m +CONFIG_VIDEO_PVRUSB2=m +CONFIG_VIDEO_HDPVR=m +CONFIG_VIDEO_USBVISION=m +CONFIG_VIDEO_STK1160_COMMON=m +CONFIG_VIDEO_GO7007=m +CONFIG_VIDEO_GO7007_USB=m +CONFIG_VIDEO_GO7007_USB_S2250_BOARD=m +CONFIG_VIDEO_AU0828=m +CONFIG_VIDEO_AU0828_RC=y +CONFIG_VIDEO_CX231XX=m +CONFIG_VIDEO_CX231XX_ALSA=m +CONFIG_VIDEO_CX231XX_DVB=m +CONFIG_VIDEO_TM6000=m +CONFIG_VIDEO_TM6000_ALSA=m +CONFIG_VIDEO_TM6000_DVB=m +CONFIG_DVB_USB=m +CONFIG_DVB_USB_A800=m +CONFIG_DVB_USB_DIBUSB_MB=m +CONFIG_DVB_USB_DIBUSB_MB_FAULTY=y +CONFIG_DVB_USB_DIBUSB_MC=m +CONFIG_DVB_USB_DIB0700=m +CONFIG_DVB_USB_UMT_010=m +CONFIG_DVB_USB_CXUSB=m +CONFIG_DVB_USB_M920X=m +CONFIG_DVB_USB_DIGITV=m +CONFIG_DVB_USB_VP7045=m +CONFIG_DVB_USB_VP702X=m +CONFIG_DVB_USB_GP8PSK=m +CONFIG_DVB_USB_NOVA_T_USB2=m +CONFIG_DVB_USB_TTUSB2=m +CONFIG_DVB_USB_DTT200U=m +CONFIG_DVB_USB_OPERA1=m +CONFIG_DVB_USB_AF9005=m +CONFIG_DVB_USB_AF9005_REMOTE=m +CONFIG_DVB_USB_PCTV452E=m +CONFIG_DVB_USB_DW2102=m +CONFIG_DVB_USB_CINERGY_T2=m +CONFIG_DVB_USB_DTV5100=m +CONFIG_DVB_USB_FRIIO=m +CONFIG_DVB_USB_AZ6027=m +CONFIG_DVB_USB_TECHNISAT_USB2=m +CONFIG_DVB_USB_V2=m +CONFIG_DVB_USB_AF9015=m +CONFIG_DVB_USB_AF9035=m +CONFIG_DVB_USB_ANYSEE=m +CONFIG_DVB_USB_AU6610=m +CONFIG_DVB_USB_AZ6007=m +CONFIG_DVB_USB_CE6230=m +CONFIG_DVB_USB_EC168=m +CONFIG_DVB_USB_GL861=m +CONFIG_DVB_USB_LME2510=m +CONFIG_DVB_USB_MXL111SF=m +CONFIG_DVB_USB_RTL28XXU=m +CONFIG_DVB_USB_DVBSKY=m +CONFIG_SMS_USB_DRV=m +CONFIG_DVB_B2C2_FLEXCOP_USB=m +CONFIG_DVB_AS102=m +CONFIG_VIDEO_EM28XX=m +CONFIG_VIDEO_EM28XX_V4L2=m +CONFIG_VIDEO_EM28XX_ALSA=m +CONFIG_VIDEO_EM28XX_DVB=m +CONFIG_V4L_PLATFORM_DRIVERS=y +CONFIG_RADIO_SI470X=y +CONFIG_USB_SI470X=m +CONFIG_I2C_SI470X=m +CONFIG_RADIO_SI4713=m +CONFIG_I2C_SI4713=m +CONFIG_USB_MR800=m +CONFIG_USB_DSBR=m +CONFIG_RADIO_SHARK=m +CONFIG_RADIO_SHARK2=m +CONFIG_USB_KEENE=m +CONFIG_USB_MA901=m +CONFIG_RADIO_TEA5764=m +CONFIG_RADIO_SAA7706H=m +CONFIG_RADIO_TEF6862=m +CONFIG_RADIO_WL1273=m +CONFIG_RADIO_WL128X=m +# CONFIG_MEDIA_SUBDRV_AUTOSELECT is not set +CONFIG_VIDEO_UDA1342=m +CONFIG_VIDEO_SONY_BTF_MPX=m +CONFIG_VIDEO_TVP5150=m +CONFIG_VIDEO_TW2804=m +CONFIG_VIDEO_TW9903=m +CONFIG_VIDEO_TW9906=m +CONFIG_VIDEO_OV7640=m +CONFIG_VIDEO_MT9V011=m +CONFIG_DRM=m +CONFIG_DRM_LOAD_EDID_FIRMWARE=y +CONFIG_DRM_UDL=m +CONFIG_DRM_PANEL_SIMPLE=m +CONFIG_DRM_VC4=m +CONFIG_FB=y +CONFIG_FB_BCM2708=y +CONFIG_FB_UDL=m +CONFIG_FB_SSD1307=m +CONFIG_FB_RPISENSE=m +# CONFIG_BACKLIGHT_GENERIC is not set +CONFIG_BACKLIGHT_RPI=m +CONFIG_BACKLIGHT_GPIO=m +CONFIG_FRAMEBUFFER_CONSOLE=y +CONFIG_LOGO=y +# CONFIG_LOGO_LINUX_MONO is not set +# CONFIG_LOGO_LINUX_VGA16 is not set +CONFIG_SOUND=y +CONFIG_SND=m +CONFIG_SND_SEQUENCER=m +CONFIG_SND_SEQ_DUMMY=m +CONFIG_SND_MIXER_OSS=m +CONFIG_SND_PCM_OSS=m +CONFIG_SND_SEQUENCER_OSS=y +CONFIG_SND_HRTIMER=m +CONFIG_SND_DUMMY=m +CONFIG_SND_ALOOP=m +CONFIG_SND_VIRMIDI=m +CONFIG_SND_MTPAV=m +CONFIG_SND_SERIAL_U16550=m +CONFIG_SND_MPU401=m +CONFIG_SND_USB_AUDIO=m +CONFIG_SND_USB_UA101=m +CONFIG_SND_USB_CAIAQ=m +CONFIG_SND_USB_CAIAQ_INPUT=y +CONFIG_SND_USB_6FIRE=m +CONFIG_SND_SOC=m +CONFIG_SND_BCM2835_SOC_I2S=m +CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC=m +CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS=m +CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI=m +CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP=m +CONFIG_SND_BCM2708_SOC_RPI_CIRRUS=m +CONFIG_SND_BCM2708_SOC_RPI_DAC=m +CONFIG_SND_BCM2708_SOC_RPI_PROTO=m +CONFIG_SND_BCM2708_SOC_JUSTBOOM_DAC=m +CONFIG_SND_BCM2708_SOC_JUSTBOOM_DIGI=m +CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC=m +CONFIG_SND_BCM2708_SOC_IQAUDIO_DIGI=m +CONFIG_SND_BCM2708_SOC_RASPIDAC3=m +CONFIG_SND_BCM2708_SOC_ADAU1977_ADC=m +CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD=m +CONFIG_SND_AUDIOINJECTOR_OCTO_SOUNDCARD=m +CONFIG_SND_DIGIDAC1_SOUNDCARD=m +CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO=m +CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO_V2=m +CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC=m +CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO=m +CONFIG_SND_PISOUND=m +CONFIG_SND_SOC_ADAU1701=m +CONFIG_SND_SOC_ADAU7002=m +CONFIG_SND_SOC_AK4554=m +CONFIG_SND_SOC_WM8804_I2C=m +CONFIG_SND_SIMPLE_CARD=m +CONFIG_SOUND_PRIME=m +CONFIG_HIDRAW=y +CONFIG_UHID=m +CONFIG_HID_A4TECH=m +CONFIG_HID_ACRUX=m +CONFIG_HID_APPLE=m +CONFIG_HID_BELKIN=m +CONFIG_HID_BETOP_FF=m +CONFIG_HID_CHERRY=m +CONFIG_HID_CHICONY=m +CONFIG_HID_CYPRESS=m +CONFIG_HID_DRAGONRISE=m +CONFIG_HID_EMS_FF=m +CONFIG_HID_ELECOM=m +CONFIG_HID_ELO=m +CONFIG_HID_EZKEY=m +CONFIG_HID_GEMBIRD=m +CONFIG_HID_HOLTEK=m +CONFIG_HID_KEYTOUCH=m +CONFIG_HID_KYE=m +CONFIG_HID_UCLOGIC=m +CONFIG_HID_WALTOP=m +CONFIG_HID_GYRATION=m +CONFIG_HID_TWINHAN=m +CONFIG_HID_KENSINGTON=m +CONFIG_HID_LCPOWER=m +CONFIG_HID_LOGITECH=m +CONFIG_HID_LOGITECH_DJ=m +CONFIG_LOGITECH_FF=y +CONFIG_LOGIRUMBLEPAD2_FF=y +CONFIG_LOGIG940_FF=y +CONFIG_HID_MAGICMOUSE=m +CONFIG_HID_MICROSOFT=m +CONFIG_HID_MONTEREY=m +CONFIG_HID_MULTITOUCH=m +CONFIG_HID_NTRIG=m +CONFIG_HID_ORTEK=m +CONFIG_HID_PANTHERLORD=m +CONFIG_HID_PETALYNX=m +CONFIG_HID_PICOLCD=m +CONFIG_HID_ROCCAT=m +CONFIG_HID_SAMSUNG=m +CONFIG_HID_SONY=m +CONFIG_HID_SPEEDLINK=m +CONFIG_HID_SUNPLUS=m +CONFIG_HID_GREENASIA=m +CONFIG_HID_SMARTJOYPLUS=m +CONFIG_HID_TOPSEED=m +CONFIG_HID_THINGM=m +CONFIG_HID_THRUSTMASTER=m +CONFIG_HID_WACOM=m +CONFIG_HID_WIIMOTE=m +CONFIG_HID_XINMO=m +CONFIG_HID_ZEROPLUS=m +CONFIG_HID_ZYDACRON=m +CONFIG_HID_PID=y +CONFIG_USB_HIDDEV=y +CONFIG_USB=y +CONFIG_USB_ANNOUNCE_NEW_DEVICES=y +CONFIG_USB_MON=m +CONFIG_USB_DWCOTG=y +CONFIG_USB_PRINTER=m +CONFIG_USB_STORAGE=y +CONFIG_USB_STORAGE_REALTEK=m +CONFIG_USB_STORAGE_DATAFAB=m +CONFIG_USB_STORAGE_FREECOM=m +CONFIG_USB_STORAGE_ISD200=m +CONFIG_USB_STORAGE_USBAT=m +CONFIG_USB_STORAGE_SDDR09=m +CONFIG_USB_STORAGE_SDDR55=m +CONFIG_USB_STORAGE_JUMPSHOT=m +CONFIG_USB_STORAGE_ALAUDA=m +CONFIG_USB_STORAGE_ONETOUCH=m +CONFIG_USB_STORAGE_KARMA=m +CONFIG_USB_STORAGE_CYPRESS_ATACB=m +CONFIG_USB_STORAGE_ENE_UB6250=m +CONFIG_USB_MDC800=m +CONFIG_USB_MICROTEK=m +CONFIG_USBIP_CORE=m +CONFIG_USBIP_VHCI_HCD=m +CONFIG_USBIP_HOST=m +CONFIG_USB_DWC2=m +CONFIG_USB_SERIAL=m +CONFIG_USB_SERIAL_GENERIC=y +CONFIG_USB_SERIAL_AIRCABLE=m +CONFIG_USB_SERIAL_ARK3116=m +CONFIG_USB_SERIAL_BELKIN=m +CONFIG_USB_SERIAL_CH341=m +CONFIG_USB_SERIAL_WHITEHEAT=m +CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m +CONFIG_USB_SERIAL_CP210X=m +CONFIG_USB_SERIAL_CYPRESS_M8=m +CONFIG_USB_SERIAL_EMPEG=m +CONFIG_USB_SERIAL_FTDI_SIO=m +CONFIG_USB_SERIAL_VISOR=m +CONFIG_USB_SERIAL_IPAQ=m +CONFIG_USB_SERIAL_IR=m +CONFIG_USB_SERIAL_EDGEPORT=m +CONFIG_USB_SERIAL_EDGEPORT_TI=m +CONFIG_USB_SERIAL_F81232=m +CONFIG_USB_SERIAL_GARMIN=m +CONFIG_USB_SERIAL_IPW=m +CONFIG_USB_SERIAL_IUU=m +CONFIG_USB_SERIAL_KEYSPAN_PDA=m +CONFIG_USB_SERIAL_KEYSPAN=m +CONFIG_USB_SERIAL_KLSI=m +CONFIG_USB_SERIAL_KOBIL_SCT=m +CONFIG_USB_SERIAL_MCT_U232=m +CONFIG_USB_SERIAL_METRO=m +CONFIG_USB_SERIAL_MOS7720=m +CONFIG_USB_SERIAL_MOS7840=m +CONFIG_USB_SERIAL_NAVMAN=m +CONFIG_USB_SERIAL_PL2303=m +CONFIG_USB_SERIAL_OTI6858=m +CONFIG_USB_SERIAL_QCAUX=m +CONFIG_USB_SERIAL_QUALCOMM=m +CONFIG_USB_SERIAL_SPCP8X5=m +CONFIG_USB_SERIAL_SAFE=m +CONFIG_USB_SERIAL_SIERRAWIRELESS=m +CONFIG_USB_SERIAL_SYMBOL=m +CONFIG_USB_SERIAL_TI=m +CONFIG_USB_SERIAL_CYBERJACK=m +CONFIG_USB_SERIAL_XIRCOM=m +CONFIG_USB_SERIAL_OPTION=m +CONFIG_USB_SERIAL_OMNINET=m +CONFIG_USB_SERIAL_OPTICON=m +CONFIG_USB_SERIAL_XSENS_MT=m +CONFIG_USB_SERIAL_WISHBONE=m +CONFIG_USB_SERIAL_SSU100=m +CONFIG_USB_SERIAL_QT2=m +CONFIG_USB_SERIAL_DEBUG=m +CONFIG_USB_EMI62=m +CONFIG_USB_EMI26=m +CONFIG_USB_ADUTUX=m +CONFIG_USB_SEVSEG=m +CONFIG_USB_RIO500=m +CONFIG_USB_LEGOTOWER=m +CONFIG_USB_LCD=m +CONFIG_USB_CYPRESS_CY7C63=m +CONFIG_USB_CYTHERM=m +CONFIG_USB_IDMOUSE=m +CONFIG_USB_FTDI_ELAN=m +CONFIG_USB_APPLEDISPLAY=m +CONFIG_USB_LD=m +CONFIG_USB_TRANCEVIBRATOR=m +CONFIG_USB_IOWARRIOR=m +CONFIG_USB_TEST=m +CONFIG_USB_ISIGHTFW=m +CONFIG_USB_YUREX=m +CONFIG_USB_ATM=m +CONFIG_USB_SPEEDTOUCH=m +CONFIG_USB_CXACRU=m +CONFIG_USB_UEAGLEATM=m +CONFIG_USB_XUSBATM=m +CONFIG_USB_GADGET=m +CONFIG_USB_ZERO=m +CONFIG_USB_AUDIO=m +CONFIG_USB_ETH=m +CONFIG_USB_GADGETFS=m +CONFIG_USB_MASS_STORAGE=m +CONFIG_USB_G_SERIAL=m +CONFIG_USB_MIDI_GADGET=m +CONFIG_USB_G_PRINTER=m +CONFIG_USB_CDC_COMPOSITE=m +CONFIG_USB_G_ACM_MS=m +CONFIG_USB_G_MULTI=m +CONFIG_USB_G_HID=m +CONFIG_USB_G_WEBCAM=m +CONFIG_MMC=y +CONFIG_MMC_BLOCK_MINORS=32 +CONFIG_MMC_BCM2835=y +CONFIG_MMC_BCM2835_DMA=y +CONFIG_MMC_BCM2835_SDHOST=y +CONFIG_MMC_SDHCI=y +CONFIG_MMC_SDHCI_PLTFM=y +CONFIG_MMC_SPI=m +CONFIG_LEDS_CLASS=y +CONFIG_LEDS_GPIO=y +CONFIG_LEDS_TRIGGER_TIMER=y +CONFIG_LEDS_TRIGGER_ONESHOT=y +CONFIG_LEDS_TRIGGER_HEARTBEAT=y +CONFIG_LEDS_TRIGGER_BACKLIGHT=y +CONFIG_LEDS_TRIGGER_CPU=y +CONFIG_LEDS_TRIGGER_GPIO=y +CONFIG_LEDS_TRIGGER_DEFAULT_ON=y +CONFIG_LEDS_TRIGGER_TRANSIENT=m +CONFIG_LEDS_TRIGGER_CAMERA=m +CONFIG_LEDS_TRIGGER_INPUT=y +CONFIG_LEDS_TRIGGER_PANIC=y +CONFIG_RTC_CLASS=y +# CONFIG_RTC_HCTOSYS is not set +CONFIG_RTC_DRV_ABX80X=m +CONFIG_RTC_DRV_DS1307=m +CONFIG_RTC_DRV_DS1374=m +CONFIG_RTC_DRV_DS1672=m +CONFIG_RTC_DRV_MAX6900=m +CONFIG_RTC_DRV_RS5C372=m +CONFIG_RTC_DRV_ISL1208=m +CONFIG_RTC_DRV_ISL12022=m +CONFIG_RTC_DRV_X1205=m +CONFIG_RTC_DRV_PCF8523=m +CONFIG_RTC_DRV_PCF8563=m +CONFIG_RTC_DRV_PCF8583=m +CONFIG_RTC_DRV_M41T80=m +CONFIG_RTC_DRV_BQ32K=m +CONFIG_RTC_DRV_S35390A=m +CONFIG_RTC_DRV_FM3130=m +CONFIG_RTC_DRV_RX8581=m +CONFIG_RTC_DRV_RX8025=m +CONFIG_RTC_DRV_EM3027=m +CONFIG_RTC_DRV_M41T93=m +CONFIG_RTC_DRV_M41T94=m +CONFIG_RTC_DRV_DS1302=m +CONFIG_RTC_DRV_DS1305=m +CONFIG_RTC_DRV_DS1390=m +CONFIG_RTC_DRV_R9701=m +CONFIG_RTC_DRV_RX4581=m +CONFIG_RTC_DRV_RS5C348=m +CONFIG_RTC_DRV_MAX6902=m +CONFIG_RTC_DRV_PCF2123=m +CONFIG_RTC_DRV_DS3232=m +CONFIG_RTC_DRV_PCF2127=m +CONFIG_RTC_DRV_RV3029C2=m +CONFIG_DMADEVICES=y +CONFIG_DMA_BCM2835=y +CONFIG_DMA_BCM2708=y +CONFIG_UIO=m +CONFIG_UIO_PDRV_GENIRQ=m +CONFIG_STAGING=y +CONFIG_PRISM2_USB=m +CONFIG_R8712U=m +CONFIG_R8188EU=m +CONFIG_VT6656=m +CONFIG_SPEAKUP=m +CONFIG_SPEAKUP_SYNTH_SOFT=m +CONFIG_STAGING_MEDIA=y +CONFIG_VIDEO_BCM2835=m +CONFIG_LIRC_STAGING=y +CONFIG_LIRC_RPI=m +CONFIG_LIRC_SASEM=m +CONFIG_FB_TFT=m +CONFIG_FB_TFT_AGM1264K_FL=m +CONFIG_FB_TFT_BD663474=m +CONFIG_FB_TFT_HX8340BN=m +CONFIG_FB_TFT_HX8347D=m +CONFIG_FB_TFT_HX8353D=m +CONFIG_FB_TFT_HX8357D=m +CONFIG_FB_TFT_ILI9163=m +CONFIG_FB_TFT_ILI9320=m +CONFIG_FB_TFT_ILI9325=m +CONFIG_FB_TFT_ILI9340=m +CONFIG_FB_TFT_ILI9341=m +CONFIG_FB_TFT_ILI9481=m +CONFIG_FB_TFT_ILI9486=m +CONFIG_FB_TFT_PCD8544=m +CONFIG_FB_TFT_RA8875=m +CONFIG_FB_TFT_S6D02A1=m +CONFIG_FB_TFT_S6D1121=m +CONFIG_FB_TFT_SSD1289=m +CONFIG_FB_TFT_SSD1306=m +CONFIG_FB_TFT_SSD1331=m +CONFIG_FB_TFT_SSD1351=m +CONFIG_FB_TFT_ST7735R=m +CONFIG_FB_TFT_TINYLCD=m +CONFIG_FB_TFT_TLS8204=m +CONFIG_FB_TFT_UC1701=m +CONFIG_FB_TFT_UPD161704=m +CONFIG_FB_TFT_WATTEROTT=m +CONFIG_FB_FLEX=m +CONFIG_FB_TFT_FBTFT_DEVICE=m +CONFIG_SND_BCM2835=m +CONFIG_MAILBOX=y +CONFIG_BCM2835_MBOX=y +# CONFIG_IOMMU_SUPPORT is not set +CONFIG_RASPBERRYPI_POWER=y +CONFIG_EXTCON=m +CONFIG_EXTCON_ARIZONA=m +CONFIG_IIO=m +CONFIG_IIO_BUFFER=y +CONFIG_IIO_BUFFER_CB=m +CONFIG_IIO_KFIFO_BUF=m +CONFIG_MCP320X=m +CONFIG_MCP3422=m +CONFIG_DHT11=m +CONFIG_HTU21=m +CONFIG_PWM_BCM2835=m +CONFIG_PWM_PCA9685=m +CONFIG_RASPBERRYPI_FIRMWARE=y +CONFIG_EXT4_FS=y +CONFIG_EXT4_FS_POSIX_ACL=y +CONFIG_EXT4_FS_SECURITY=y +CONFIG_REISERFS_FS=m +CONFIG_REISERFS_FS_XATTR=y +CONFIG_REISERFS_FS_POSIX_ACL=y +CONFIG_REISERFS_FS_SECURITY=y +CONFIG_JFS_FS=m +CONFIG_JFS_POSIX_ACL=y +CONFIG_JFS_SECURITY=y +CONFIG_JFS_STATISTICS=y +CONFIG_XFS_FS=m +CONFIG_XFS_QUOTA=y +CONFIG_XFS_POSIX_ACL=y +CONFIG_XFS_RT=y +CONFIG_GFS2_FS=m +CONFIG_OCFS2_FS=m +CONFIG_BTRFS_FS=m +CONFIG_BTRFS_FS_POSIX_ACL=y +CONFIG_NILFS2_FS=m +CONFIG_F2FS_FS=y +CONFIG_FANOTIFY=y +CONFIG_QFMT_V1=m +CONFIG_QFMT_V2=m +CONFIG_AUTOFS4_FS=y +CONFIG_FUSE_FS=m +CONFIG_CUSE=m +CONFIG_OVERLAY_FS=m +CONFIG_FSCACHE=y +CONFIG_FSCACHE_STATS=y +CONFIG_FSCACHE_HISTOGRAM=y +CONFIG_CACHEFILES=y +CONFIG_ISO9660_FS=m +CONFIG_JOLIET=y +CONFIG_ZISOFS=y +CONFIG_UDF_FS=m +CONFIG_MSDOS_FS=y +CONFIG_VFAT_FS=y +CONFIG_FAT_DEFAULT_IOCHARSET="ascii" +CONFIG_NTFS_FS=m +CONFIG_NTFS_RW=y +CONFIG_TMPFS=y +CONFIG_TMPFS_POSIX_ACL=y +CONFIG_ECRYPT_FS=m +CONFIG_HFS_FS=m +CONFIG_HFSPLUS_FS=m +CONFIG_JFFS2_FS=m +CONFIG_JFFS2_SUMMARY=y +CONFIG_UBIFS_FS=m +CONFIG_SQUASHFS=m +CONFIG_SQUASHFS_XATTR=y +CONFIG_SQUASHFS_LZO=y +CONFIG_SQUASHFS_XZ=y +CONFIG_NFS_FS=y +CONFIG_NFS_V3_ACL=y +CONFIG_NFS_V4=y +CONFIG_NFS_SWAP=y +CONFIG_ROOT_NFS=y +CONFIG_NFS_FSCACHE=y +CONFIG_NFSD=m +CONFIG_NFSD_V3_ACL=y +CONFIG_NFSD_V4=y +CONFIG_CIFS=m +CONFIG_CIFS_WEAK_PW_HASH=y +CONFIG_CIFS_UPCALL=y +CONFIG_CIFS_XATTR=y +CONFIG_CIFS_POSIX=y +CONFIG_CIFS_ACL=y +CONFIG_CIFS_DFS_UPCALL=y +CONFIG_CIFS_SMB2=y +CONFIG_CIFS_FSCACHE=y +CONFIG_9P_FS=m +CONFIG_9P_FS_POSIX_ACL=y +CONFIG_NLS_DEFAULT="utf8" +CONFIG_NLS_CODEPAGE_437=y +CONFIG_NLS_CODEPAGE_737=m +CONFIG_NLS_CODEPAGE_775=m +CONFIG_NLS_CODEPAGE_850=m +CONFIG_NLS_CODEPAGE_852=m +CONFIG_NLS_CODEPAGE_855=m +CONFIG_NLS_CODEPAGE_857=m +CONFIG_NLS_CODEPAGE_860=m +CONFIG_NLS_CODEPAGE_861=m +CONFIG_NLS_CODEPAGE_862=m +CONFIG_NLS_CODEPAGE_863=m +CONFIG_NLS_CODEPAGE_864=m +CONFIG_NLS_CODEPAGE_865=m +CONFIG_NLS_CODEPAGE_866=m +CONFIG_NLS_CODEPAGE_869=m +CONFIG_NLS_CODEPAGE_936=m +CONFIG_NLS_CODEPAGE_950=m +CONFIG_NLS_CODEPAGE_932=m +CONFIG_NLS_CODEPAGE_949=m +CONFIG_NLS_CODEPAGE_874=m +CONFIG_NLS_ISO8859_8=m +CONFIG_NLS_CODEPAGE_1250=m +CONFIG_NLS_CODEPAGE_1251=m +CONFIG_NLS_ASCII=y +CONFIG_NLS_ISO8859_1=m +CONFIG_NLS_ISO8859_2=m +CONFIG_NLS_ISO8859_3=m +CONFIG_NLS_ISO8859_4=m +CONFIG_NLS_ISO8859_5=m +CONFIG_NLS_ISO8859_6=m +CONFIG_NLS_ISO8859_7=m +CONFIG_NLS_ISO8859_9=m +CONFIG_NLS_ISO8859_13=m +CONFIG_NLS_ISO8859_14=m +CONFIG_NLS_ISO8859_15=m +CONFIG_NLS_KOI8_R=m +CONFIG_NLS_KOI8_U=m +CONFIG_DLM=m +CONFIG_PRINTK_TIME=y +CONFIG_BOOT_PRINTK_DELAY=y +CONFIG_DEBUG_MEMORY_INIT=y +CONFIG_DETECT_HUNG_TASK=y +CONFIG_LATENCYTOP=y +CONFIG_IRQSOFF_TRACER=y +CONFIG_SCHED_TRACER=y +CONFIG_STACK_TRACER=y +CONFIG_BLK_DEV_IO_TRACE=y +CONFIG_FUNCTION_PROFILER=y +CONFIG_KGDB=y +CONFIG_KGDB_KDB=y +CONFIG_KDB_KEYBOARD=y +CONFIG_CRYPTO_USER=m +CONFIG_CRYPTO_CRYPTD=m +CONFIG_CRYPTO_CBC=y +CONFIG_CRYPTO_CTS=m +CONFIG_CRYPTO_XTS=m +CONFIG_CRYPTO_XCBC=m +CONFIG_CRYPTO_SHA512=m +CONFIG_CRYPTO_TGR192=m +CONFIG_CRYPTO_WP512=m +CONFIG_CRYPTO_CAST5=m +CONFIG_CRYPTO_DES=y +CONFIG_CRYPTO_LZ4=m +CONFIG_CRYPTO_USER_API_SKCIPHER=m +# CONFIG_CRYPTO_HW is not set +CONFIG_ARM_CRYPTO=y +CONFIG_CRYPTO_SHA1_ARM=m +CONFIG_CRYPTO_AES_ARM=m +CONFIG_CRC_ITU_T=y +CONFIG_LIBCRC32C=y From 7108a6c4ae059e0eb29be9b135245bf3f2d09840 Mon Sep 17 00:00:00 2001 From: Michael Zoran Date: Wed, 24 Aug 2016 03:35:56 -0700 Subject: [PATCH 098/165] Add arm64 configuration and device tree differences. Disable MMC_BCM2835_SDHOST and MMC_BCM2835 since these drivers are crashing at the moment. ARM64: Modify default config to get raspbian to boot (#1686) 1. Enable emulation of deprecated instructions. 2. Enable ARM 8.1 and 8.2 features which are not detected at runtime. 3. Switch the default governer to powersave. 4. Include the watchdog timer driver in the kernel image rather then a module. Tested with raspbian-jessie 2016-09-23. --- arch/arm64/Kconfig.platforms | 22 + arch/arm64/boot/dts/broadcom/Makefile | 1 + arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b.dts | 3 + arch/arm64/configs/bcmrpi3_defconfig | 1334 ++++++++++++++++++++++ 4 files changed, 1360 insertions(+) create mode 100644 arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b.dts create mode 100644 arch/arm64/configs/bcmrpi3_defconfig diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms index 129cc5ae4091489c08eb751f3e1b85b6eaa2eb9c..f04bc208f878322d35b94afafe74a7caf7d93820 100644 --- a/arch/arm64/Kconfig.platforms +++ b/arch/arm64/Kconfig.platforms @@ -1,5 +1,27 @@ menu "Platform selection" +config MACH_BCM2709 + bool + +config ARCH_BCM2709 + bool "Broadcom BCM2709 family" + select MACH_BCM2709 + select HAVE_SMP + select ARM_AMBA + select COMMON_CLK + select ARCH_HAS_CPUFREQ + select GENERIC_CLOCKEVENTS + select MULTI_IRQ_HANDLER + select SPARSE_IRQ + select MFD_SYSCON + select VC4 + select USE_OF + select ARCH_REQUIRE_GPIOLIB + select PINCTRL + select PINCTRL_BCM2835 + help + This enables support for Broadcom BCM2709 boards. + config ARCH_SUNXI bool "Allwinner sunxi 64-bit SoC Family" select GENERIC_IRQ_CHIP diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile index f1caece9d3a7ae7af8f95f9b9675e935a59ace6b..db4e66ee2a455eb1ec7d49c1fcb1c6c0a7a3ad13 100644 --- a/arch/arm64/boot/dts/broadcom/Makefile +++ b/arch/arm64/boot/dts/broadcom/Makefile @@ -1,6 +1,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2837-rpi-3-b.dtb dtb-$(CONFIG_ARCH_BCM_IPROC) += ns2-svk.dtb ns2-xmc.dtb dtb-$(CONFIG_ARCH_VULCAN) += vulcan-eval.dtb +dtb-$(CONFIG_ARCH_BCM2709) += bcm2710-rpi-3-b.dtb always := $(dtb-y) subdir-y := $(dts-dirs) diff --git a/arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b.dts b/arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b.dts new file mode 100644 index 0000000000000000000000000000000000000000..deb33441da95220db0ed672e41639626fba682a5 --- /dev/null +++ b/arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b.dts @@ -0,0 +1,3 @@ +#define RPI364 + +#include "../../../../arm/boot/dts/bcm2710-rpi-3-b.dts" diff --git a/arch/arm64/configs/bcmrpi3_defconfig b/arch/arm64/configs/bcmrpi3_defconfig new file mode 100644 index 0000000000000000000000000000000000000000..e6b09fafa27eed2b762e3d53b55041f793683d27 --- /dev/null +++ b/arch/arm64/configs/bcmrpi3_defconfig @@ -0,0 +1,1334 @@ +# CONFIG_ARM_PATCH_PHYS_VIRT is not set +CONFIG_PHYS_OFFSET=0 +CONFIG_LOCALVERSION="-v8" +# CONFIG_LOCALVERSION_AUTO is not set +CONFIG_64BIT=y +CONFIG_SYSVIPC=y +CONFIG_POSIX_MQUEUE=y +CONFIG_NO_HZ=y +CONFIG_HIGH_RES_TIMERS=y + +# +# ARM errata workarounds via the alternatives framework +# +CONFIG_ARM64_ERRATUM_826319=n +CONFIG_ARM64_ERRATUM_827319=n +CONFIG_ARM64_ERRATUM_824069=n +CONFIG_ARM64_ERRATUM_819472=n +CONFIG_ARM64_ERRATUM_832075=n +CONFIG_ARM64_ERRATUM_845719=n +CONFIG_ARM64_ERRATUM_843419=n +CONFIG_CAVIUM_ERRATUM_22375=n +CONFIG_CAVIUM_ERRATUM_23154=n +CONFIG_CAVIUM_ERRATUM_27456=n +CONFIG_ARM64_4K_PAGES=y +CONFIG_ARM64_VA_BITS_39=y +CONFIG_ARM64_VA_BITS=39 +CONFIG_SCHED_MC=y +CONFIG_NR_CPUS=4 +CONFIG_HOTPLUG_CPU=y +CONFIG_ARMV8_DEPRECATED=y +CONFIG_SWP_EMULATION=y +CONFIG_CP15_BARRIER_EMULATION=y +CONFIG_SETEND_EMULATION=y + +# +# ARMv8.1 architectural features +# +CONFIG_ARM64_HW_AFDBM=y +CONFIG_ARM64_PAN=y +CONFIG_ARM64_LSE_ATOMICS=y +CONFIG_ARM64_VHE=y + +# +# ARMv8.2 architectural features +# +CONFIG_ARM64_UAO=y +CONFIG_ARM64_MODULE_CMODEL_LARGE=n +CONFIG_RANDOMIZE_BASE=n + +CONFIG_BSD_PROCESS_ACCT=y +CONFIG_BSD_PROCESS_ACCT_V3=y +CONFIG_TASKSTATS=y +CONFIG_TASK_DELAY_ACCT=y +CONFIG_TASK_XACCT=y +CONFIG_TASK_IO_ACCOUNTING=y +CONFIG_IKCONFIG=m +CONFIG_IKCONFIG_PROC=y +CONFIG_NMI_LOG_BUF_SHIFT=12 +CONFIG_MEMCG=y +CONFIG_BLK_CGROUP=y +CONFIG_CGROUP_FREEZER=y +CONFIG_CPUSETS=y +CONFIG_CGROUP_DEVICE=y +CONFIG_CGROUP_CPUACCT=y +CONFIG_NAMESPACES=y +CONFIG_USER_NS=y +CONFIG_SCHED_AUTOGROUP=y +CONFIG_BLK_DEV_INITRD=y +CONFIG_EMBEDDED=y +# CONFIG_COMPAT_BRK is not set +CONFIG_PROFILING=y +CONFIG_OPROFILE=m +CONFIG_KPROBES=y +CONFIG_JUMP_LABEL=y +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +CONFIG_MODVERSIONS=y +CONFIG_MODULE_SRCVERSION_ALL=y +CONFIG_TRIM_UNUSED_KSYMS=y +CONFIG_BLK_DEV_THROTTLING=y +CONFIG_PARTITION_ADVANCED=y +CONFIG_MAC_PARTITION=y +CONFIG_CFQ_GROUP_IOSCHED=y +CONFIG_ARCH_BCM2709=y +# CONFIG_CACHE_L2X0 is not set +CONFIG_SMP=y +CONFIG_HAVE_ARM_ARCH_TIMER=y +CONFIG_VMSPLIT_2G=y +CONFIG_PREEMPT_VOLUNTARY=y +CONFIG_AEABI=y +CONFIG_OABI_COMPAT=y +# CONFIG_CPU_SW_DOMAIN_PAN is not set +CONFIG_CLEANCACHE=y +CONFIG_FRONTSWAP=y +CONFIG_CMA=y +CONFIG_ZSMALLOC=m +CONFIG_PGTABLE_MAPPING=y +CONFIG_UACCESS_WITH_MEMCPY=y +CONFIG_SECCOMP=y +# CONFIG_ATAGS is not set +CONFIG_ZBOOT_ROM_TEXT=0x0 +CONFIG_ZBOOT_ROM_BSS=0x0 +CONFIG_CMDLINE="console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait" +CONFIG_CPU_FREQ=y +CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE=y +CONFIG_CPU_FREQ_GOV_PERFORMANCE=y +CONFIG_CPU_FREQ_GOV_USERSPACE=y +CONFIG_CPU_FREQ_GOV_ONDEMAND=y +CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y +CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y +CONFIG_VFP=y +CONFIG_NEON=y +CONFIG_KERNEL_MODE_NEON=y +CONFIG_BINFMT_MISC=m +CONFIG_COMPAT=y +CONFIG_SYSVIPC_COMPAT=y + +# CONFIG_SUSPEND is not set +CONFIG_PM=y +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_XFRM_USER=y +CONFIG_NET_KEY=m +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_IP_MULTIPLE_TABLES=y +CONFIG_IP_ROUTE_MULTIPATH=y +CONFIG_IP_ROUTE_VERBOSE=y +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +CONFIG_IP_PNP_RARP=y +CONFIG_NET_IPIP=m +CONFIG_NET_IPGRE_DEMUX=m +CONFIG_NET_IPGRE=m +CONFIG_IP_MROUTE=y +CONFIG_IP_MROUTE_MULTIPLE_TABLES=y +CONFIG_IP_PIMSM_V1=y +CONFIG_IP_PIMSM_V2=y +CONFIG_SYN_COOKIES=y +CONFIG_INET_AH=m +CONFIG_INET_ESP=m +CONFIG_INET_IPCOMP=m +CONFIG_INET_XFRM_MODE_TRANSPORT=m +CONFIG_INET_XFRM_MODE_TUNNEL=m +CONFIG_INET_XFRM_MODE_BEET=m +CONFIG_INET_DIAG=m +CONFIG_IPV6=m +CONFIG_IPV6_ROUTER_PREF=y +CONFIG_INET6_AH=m +CONFIG_INET6_ESP=m +CONFIG_INET6_IPCOMP=m +CONFIG_IPV6_TUNNEL=m +CONFIG_IPV6_MULTIPLE_TABLES=y +CONFIG_IPV6_SUBTREES=y +CONFIG_IPV6_MROUTE=y +CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y +CONFIG_IPV6_PIMSM_V2=y +CONFIG_NETFILTER=y +CONFIG_NF_CONNTRACK=m +CONFIG_NF_CONNTRACK_ZONES=y +CONFIG_NF_CONNTRACK_EVENTS=y +CONFIG_NF_CONNTRACK_TIMESTAMP=y +CONFIG_NF_CT_PROTO_DCCP=m +CONFIG_NF_CT_PROTO_UDPLITE=m +CONFIG_NF_CONNTRACK_AMANDA=m +CONFIG_NF_CONNTRACK_FTP=m +CONFIG_NF_CONNTRACK_H323=m +CONFIG_NF_CONNTRACK_IRC=m +CONFIG_NF_CONNTRACK_NETBIOS_NS=m +CONFIG_NF_CONNTRACK_SNMP=m +CONFIG_NF_CONNTRACK_PPTP=m +CONFIG_NF_CONNTRACK_SANE=m +CONFIG_NF_CONNTRACK_SIP=m +CONFIG_NF_CONNTRACK_TFTP=m +CONFIG_NF_CT_NETLINK=m +CONFIG_NETFILTER_XT_SET=m +CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m +CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m +CONFIG_NETFILTER_XT_TARGET_CONNMARK=m +CONFIG_NETFILTER_XT_TARGET_DSCP=m +CONFIG_NETFILTER_XT_TARGET_HMARK=m +CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m +CONFIG_NETFILTER_XT_TARGET_LED=m +CONFIG_NETFILTER_XT_TARGET_LOG=m +CONFIG_NETFILTER_XT_TARGET_MARK=m +CONFIG_NETFILTER_XT_TARGET_NFLOG=m +CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m +CONFIG_NETFILTER_XT_TARGET_NOTRACK=m +CONFIG_NETFILTER_XT_TARGET_TEE=m +CONFIG_NETFILTER_XT_TARGET_TPROXY=m +CONFIG_NETFILTER_XT_TARGET_TRACE=m +CONFIG_NETFILTER_XT_TARGET_TCPMSS=m +CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m +CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m +CONFIG_NETFILTER_XT_MATCH_BPF=m +CONFIG_NETFILTER_XT_MATCH_CLUSTER=m +CONFIG_NETFILTER_XT_MATCH_COMMENT=m +CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m +CONFIG_NETFILTER_XT_MATCH_CONNLABEL=m +CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m +CONFIG_NETFILTER_XT_MATCH_CONNMARK=m +CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m +CONFIG_NETFILTER_XT_MATCH_CPU=m +CONFIG_NETFILTER_XT_MATCH_DCCP=m +CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m +CONFIG_NETFILTER_XT_MATCH_DSCP=m +CONFIG_NETFILTER_XT_MATCH_ESP=m +CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m +CONFIG_NETFILTER_XT_MATCH_HELPER=m +CONFIG_NETFILTER_XT_MATCH_IPRANGE=m +CONFIG_NETFILTER_XT_MATCH_IPVS=m +CONFIG_NETFILTER_XT_MATCH_LENGTH=m +CONFIG_NETFILTER_XT_MATCH_LIMIT=m +CONFIG_NETFILTER_XT_MATCH_MAC=m +CONFIG_NETFILTER_XT_MATCH_MARK=m +CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m +CONFIG_NETFILTER_XT_MATCH_NFACCT=m +CONFIG_NETFILTER_XT_MATCH_OSF=m +CONFIG_NETFILTER_XT_MATCH_OWNER=m +CONFIG_NETFILTER_XT_MATCH_POLICY=m +CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m +CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m +CONFIG_NETFILTER_XT_MATCH_QUOTA=m +CONFIG_NETFILTER_XT_MATCH_RATEEST=m +CONFIG_NETFILTER_XT_MATCH_REALM=m +CONFIG_NETFILTER_XT_MATCH_RECENT=m +CONFIG_NETFILTER_XT_MATCH_SOCKET=m +CONFIG_NETFILTER_XT_MATCH_STATE=m +CONFIG_NETFILTER_XT_MATCH_STATISTIC=m +CONFIG_NETFILTER_XT_MATCH_STRING=m +CONFIG_NETFILTER_XT_MATCH_TCPMSS=m +CONFIG_NETFILTER_XT_MATCH_TIME=m +CONFIG_NETFILTER_XT_MATCH_U32=m +CONFIG_IP_SET=m +CONFIG_IP_SET_BITMAP_IP=m +CONFIG_IP_SET_BITMAP_IPMAC=m +CONFIG_IP_SET_BITMAP_PORT=m +CONFIG_IP_SET_HASH_IP=m +CONFIG_IP_SET_HASH_IPPORT=m +CONFIG_IP_SET_HASH_IPPORTIP=m +CONFIG_IP_SET_HASH_IPPORTNET=m +CONFIG_IP_SET_HASH_NET=m +CONFIG_IP_SET_HASH_NETPORT=m +CONFIG_IP_SET_HASH_NETIFACE=m +CONFIG_IP_SET_LIST_SET=m +CONFIG_IP_VS=m +CONFIG_IP_VS_PROTO_TCP=y +CONFIG_IP_VS_PROTO_UDP=y +CONFIG_IP_VS_PROTO_ESP=y +CONFIG_IP_VS_PROTO_AH=y +CONFIG_IP_VS_PROTO_SCTP=y +CONFIG_IP_VS_RR=m +CONFIG_IP_VS_WRR=m +CONFIG_IP_VS_LC=m +CONFIG_IP_VS_WLC=m +CONFIG_IP_VS_LBLC=m +CONFIG_IP_VS_LBLCR=m +CONFIG_IP_VS_DH=m +CONFIG_IP_VS_SH=m +CONFIG_IP_VS_SED=m +CONFIG_IP_VS_NQ=m +CONFIG_IP_VS_FTP=m +CONFIG_IP_VS_PE_SIP=m +CONFIG_NF_CONNTRACK_IPV4=m +CONFIG_IP_NF_IPTABLES=m +CONFIG_IP_NF_MATCH_AH=m +CONFIG_IP_NF_MATCH_ECN=m +CONFIG_IP_NF_MATCH_RPFILTER=m +CONFIG_IP_NF_MATCH_TTL=m +CONFIG_IP_NF_FILTER=m +CONFIG_IP_NF_TARGET_REJECT=m +CONFIG_IP_NF_NAT=m +CONFIG_IP_NF_TARGET_MASQUERADE=m +CONFIG_IP_NF_TARGET_NETMAP=m +CONFIG_IP_NF_TARGET_REDIRECT=m +CONFIG_IP_NF_MANGLE=m +CONFIG_IP_NF_TARGET_CLUSTERIP=m +CONFIG_IP_NF_TARGET_ECN=m +CONFIG_IP_NF_TARGET_TTL=m +CONFIG_IP_NF_RAW=m +CONFIG_IP_NF_ARPTABLES=m +CONFIG_IP_NF_ARPFILTER=m +CONFIG_IP_NF_ARP_MANGLE=m +CONFIG_NF_CONNTRACK_IPV6=m +CONFIG_IP6_NF_IPTABLES=m +CONFIG_IP6_NF_MATCH_AH=m +CONFIG_IP6_NF_MATCH_EUI64=m +CONFIG_IP6_NF_MATCH_FRAG=m +CONFIG_IP6_NF_MATCH_OPTS=m +CONFIG_IP6_NF_MATCH_HL=m +CONFIG_IP6_NF_MATCH_IPV6HEADER=m +CONFIG_IP6_NF_MATCH_MH=m +CONFIG_IP6_NF_MATCH_RPFILTER=m +CONFIG_IP6_NF_MATCH_RT=m +CONFIG_IP6_NF_TARGET_HL=m +CONFIG_IP6_NF_FILTER=m +CONFIG_IP6_NF_TARGET_REJECT=m +CONFIG_IP6_NF_MANGLE=m +CONFIG_IP6_NF_RAW=m +CONFIG_IP6_NF_NAT=m +CONFIG_IP6_NF_TARGET_MASQUERADE=m +CONFIG_IP6_NF_TARGET_NPT=m +CONFIG_BRIDGE_NF_EBTABLES=m +CONFIG_BRIDGE_EBT_BROUTE=m +CONFIG_BRIDGE_EBT_T_FILTER=m +CONFIG_BRIDGE_EBT_T_NAT=m +CONFIG_BRIDGE_EBT_802_3=m +CONFIG_BRIDGE_EBT_AMONG=m +CONFIG_BRIDGE_EBT_ARP=m +CONFIG_BRIDGE_EBT_IP=m +CONFIG_BRIDGE_EBT_IP6=m +CONFIG_BRIDGE_EBT_LIMIT=m +CONFIG_BRIDGE_EBT_MARK=m +CONFIG_BRIDGE_EBT_PKTTYPE=m +CONFIG_BRIDGE_EBT_STP=m +CONFIG_BRIDGE_EBT_VLAN=m +CONFIG_BRIDGE_EBT_ARPREPLY=m +CONFIG_BRIDGE_EBT_DNAT=m +CONFIG_BRIDGE_EBT_MARK_T=m +CONFIG_BRIDGE_EBT_REDIRECT=m +CONFIG_BRIDGE_EBT_SNAT=m +CONFIG_BRIDGE_EBT_LOG=m +CONFIG_BRIDGE_EBT_NFLOG=m +CONFIG_SCTP_COOKIE_HMAC_SHA1=y +CONFIG_ATM=m +CONFIG_L2TP=m +CONFIG_L2TP_V3=y +CONFIG_L2TP_IP=m +CONFIG_L2TP_ETH=m +CONFIG_BRIDGE=m +CONFIG_VLAN_8021Q=m +CONFIG_VLAN_8021Q_GVRP=y +CONFIG_ATALK=m +CONFIG_6LOWPAN=m +CONFIG_IEEE802154=m +CONFIG_IEEE802154_6LOWPAN=m +CONFIG_MAC802154=m +CONFIG_NET_SCHED=y +CONFIG_NET_SCH_CBQ=m +CONFIG_NET_SCH_HTB=m +CONFIG_NET_SCH_HFSC=m +CONFIG_NET_SCH_PRIO=m +CONFIG_NET_SCH_MULTIQ=m +CONFIG_NET_SCH_RED=m +CONFIG_NET_SCH_SFB=m +CONFIG_NET_SCH_SFQ=m +CONFIG_NET_SCH_TEQL=m +CONFIG_NET_SCH_TBF=m +CONFIG_NET_SCH_GRED=m +CONFIG_NET_SCH_DSMARK=m +CONFIG_NET_SCH_NETEM=m +CONFIG_NET_SCH_DRR=m +CONFIG_NET_SCH_MQPRIO=m +CONFIG_NET_SCH_CHOKE=m +CONFIG_NET_SCH_QFQ=m +CONFIG_NET_SCH_CODEL=m +CONFIG_NET_SCH_FQ_CODEL=m +CONFIG_NET_SCH_INGRESS=m +CONFIG_NET_SCH_PLUG=m +CONFIG_NET_CLS_BASIC=m +CONFIG_NET_CLS_TCINDEX=m +CONFIG_NET_CLS_ROUTE4=m +CONFIG_NET_CLS_FW=m +CONFIG_NET_CLS_U32=m +CONFIG_CLS_U32_MARK=y +CONFIG_NET_CLS_RSVP=m +CONFIG_NET_CLS_RSVP6=m +CONFIG_NET_CLS_FLOW=m +CONFIG_NET_CLS_CGROUP=m +CONFIG_NET_EMATCH=y +CONFIG_NET_EMATCH_CMP=m +CONFIG_NET_EMATCH_NBYTE=m +CONFIG_NET_EMATCH_U32=m +CONFIG_NET_EMATCH_META=m +CONFIG_NET_EMATCH_TEXT=m +CONFIG_NET_EMATCH_IPSET=m +CONFIG_NET_CLS_ACT=y +CONFIG_NET_ACT_POLICE=m +CONFIG_NET_ACT_GACT=m +CONFIG_GACT_PROB=y +CONFIG_NET_ACT_MIRRED=m +CONFIG_NET_ACT_IPT=m +CONFIG_NET_ACT_NAT=m +CONFIG_NET_ACT_PEDIT=m +CONFIG_NET_ACT_SIMP=m +CONFIG_NET_ACT_SKBEDIT=m +CONFIG_NET_ACT_CSUM=m +CONFIG_BATMAN_ADV=m +CONFIG_OPENVSWITCH=m +CONFIG_NET_PKTGEN=m +CONFIG_HAMRADIO=y +CONFIG_AX25=m +CONFIG_NETROM=m +CONFIG_ROSE=m +CONFIG_MKISS=m +CONFIG_6PACK=m +CONFIG_BPQETHER=m +CONFIG_BAYCOM_SER_FDX=m +CONFIG_BAYCOM_SER_HDX=m +CONFIG_YAM=m +CONFIG_CAN=m +CONFIG_CAN_VCAN=m +CONFIG_CAN_MCP251X=m +CONFIG_IRDA=m +CONFIG_IRLAN=m +CONFIG_IRNET=m +CONFIG_IRCOMM=m +CONFIG_IRDA_ULTRA=y +CONFIG_IRDA_CACHE_LAST_LSAP=y +CONFIG_IRDA_FAST_RR=y +CONFIG_IRTTY_SIR=m +CONFIG_KINGSUN_DONGLE=m +CONFIG_KSDAZZLE_DONGLE=m +CONFIG_KS959_DONGLE=m +CONFIG_USB_IRDA=m +CONFIG_SIGMATEL_FIR=m +CONFIG_MCS_FIR=m +CONFIG_BT=m +CONFIG_BT_RFCOMM=m +CONFIG_BT_RFCOMM_TTY=y +CONFIG_BT_BNEP=m +CONFIG_BT_BNEP_MC_FILTER=y +CONFIG_BT_BNEP_PROTO_FILTER=y +CONFIG_BT_HIDP=m +CONFIG_BT_6LOWPAN=m +CONFIG_BT_HCIBTUSB=m +CONFIG_BT_HCIUART=m +CONFIG_BT_HCIUART_3WIRE=y +CONFIG_BT_HCIUART_BCM=y +CONFIG_BT_HCIBCM203X=m +CONFIG_BT_HCIBPA10X=m +CONFIG_BT_HCIBFUSB=m +CONFIG_BT_HCIVHCI=m +CONFIG_BT_MRVL=m +CONFIG_BT_MRVL_SDIO=m +CONFIG_BT_ATH3K=m +CONFIG_BT_WILINK=m +CONFIG_MAC80211=m +CONFIG_MAC80211_MESH=y +CONFIG_WIMAX=m +CONFIG_RFKILL=m +CONFIG_RFKILL_INPUT=y +CONFIG_NET_9P=m +CONFIG_NFC=m +CONFIG_DEVTMPFS=y +CONFIG_DEVTMPFS_MOUNT=y +CONFIG_DMA_CMA=y +CONFIG_CMA_SIZE_MBYTES=5 +CONFIG_MTD=m +CONFIG_MTD_BLOCK=m +CONFIG_MTD_NAND=m +CONFIG_MTD_UBI=m +CONFIG_OF_CONFIGFS=y +CONFIG_ZRAM=m +CONFIG_BLK_DEV_LOOP=y +CONFIG_BLK_DEV_CRYPTOLOOP=m +CONFIG_BLK_DEV_DRBD=m +CONFIG_BLK_DEV_NBD=m +CONFIG_BLK_DEV_RAM=y +CONFIG_CDROM_PKTCDVD=m +CONFIG_ATA_OVER_ETH=m +CONFIG_EEPROM_AT24=m +CONFIG_TI_ST=m +CONFIG_SCSI=y +# CONFIG_SCSI_PROC_FS is not set +CONFIG_BLK_DEV_SD=y +CONFIG_CHR_DEV_ST=m +CONFIG_CHR_DEV_OSST=m +CONFIG_BLK_DEV_SR=m +CONFIG_CHR_DEV_SG=m +CONFIG_SCSI_ISCSI_ATTRS=y +CONFIG_ISCSI_TCP=m +CONFIG_ISCSI_BOOT_SYSFS=m +CONFIG_MD=y +CONFIG_MD_LINEAR=m +CONFIG_MD_RAID0=m +CONFIG_BLK_DEV_DM=m +CONFIG_DM_CRYPT=m +CONFIG_DM_SNAPSHOT=m +CONFIG_DM_THIN_PROVISIONING=m +CONFIG_DM_MIRROR=m +CONFIG_DM_LOG_USERSPACE=m +CONFIG_DM_RAID=m +CONFIG_DM_ZERO=m +CONFIG_DM_DELAY=m +CONFIG_NETDEVICES=y +CONFIG_BONDING=m +CONFIG_DUMMY=m +CONFIG_IFB=m +CONFIG_MACVLAN=m +CONFIG_IPVLAN=m +CONFIG_VXLAN=m +CONFIG_NETCONSOLE=m +CONFIG_TUN=m +CONFIG_VETH=m +CONFIG_ENC28J60=m +CONFIG_QCA7000=m +CONFIG_MDIO_BITBANG=m +CONFIG_PPP=m +CONFIG_PPP_BSDCOMP=m +CONFIG_PPP_DEFLATE=m +CONFIG_PPP_FILTER=y +CONFIG_PPP_MPPE=m +CONFIG_PPP_MULTILINK=y +CONFIG_PPPOATM=m +CONFIG_PPPOE=m +CONFIG_PPPOL2TP=m +CONFIG_PPP_ASYNC=m +CONFIG_PPP_SYNC_TTY=m +CONFIG_SLIP=m +CONFIG_SLIP_COMPRESSED=y +CONFIG_SLIP_SMART=y +CONFIG_USB_CATC=m +CONFIG_USB_KAWETH=m +CONFIG_USB_PEGASUS=m +CONFIG_USB_RTL8150=m +CONFIG_USB_RTL8152=m +CONFIG_USB_USBNET=y +CONFIG_USB_NET_AX8817X=m +CONFIG_USB_NET_AX88179_178A=m +CONFIG_USB_NET_CDCETHER=m +CONFIG_USB_NET_CDC_EEM=m +CONFIG_USB_NET_CDC_NCM=m +CONFIG_USB_NET_HUAWEI_CDC_NCM=m +CONFIG_USB_NET_CDC_MBIM=m +CONFIG_USB_NET_DM9601=m +CONFIG_USB_NET_SR9700=m +CONFIG_USB_NET_SR9800=m +CONFIG_USB_NET_SMSC75XX=m +CONFIG_USB_NET_SMSC95XX=y +CONFIG_USB_NET_GL620A=m +CONFIG_USB_NET_NET1080=m +CONFIG_USB_NET_PLUSB=m +CONFIG_USB_NET_MCS7830=m +CONFIG_USB_NET_CDC_SUBSET=m +CONFIG_USB_ALI_M5632=y +CONFIG_USB_AN2720=y +CONFIG_USB_EPSON2888=y +CONFIG_USB_KC2190=y +CONFIG_USB_NET_ZAURUS=m +CONFIG_USB_NET_CX82310_ETH=m +CONFIG_USB_NET_KALMIA=m +CONFIG_USB_NET_QMI_WWAN=m +CONFIG_USB_HSO=m +CONFIG_USB_NET_INT51X1=m +CONFIG_USB_IPHETH=m +CONFIG_USB_SIERRA_NET=m +CONFIG_USB_VL600=m +CONFIG_ATH9K=m +CONFIG_ATH9K_HTC=m +CONFIG_CARL9170=m +CONFIG_ATH6KL=m +CONFIG_ATH6KL_USB=m +CONFIG_AR5523=m +CONFIG_AT76C50X_USB=m +CONFIG_B43=m +# CONFIG_B43_PHY_N is not set +CONFIG_B43LEGACY=m +CONFIG_BRCMFMAC=m +CONFIG_BRCMFMAC_USB=y +CONFIG_HOSTAP=m +CONFIG_P54_COMMON=m +CONFIG_P54_USB=m +CONFIG_LIBERTAS=m +CONFIG_LIBERTAS_USB=m +CONFIG_LIBERTAS_SDIO=m +CONFIG_LIBERTAS_THINFIRM=m +CONFIG_LIBERTAS_THINFIRM_USB=m +CONFIG_MWIFIEX=m +CONFIG_MWIFIEX_SDIO=m +CONFIG_MT7601U=m +CONFIG_RT2X00=m +CONFIG_RT2500USB=m +CONFIG_RT73USB=m +CONFIG_RT2800USB=m +CONFIG_RT2800USB_RT3573=y +CONFIG_RT2800USB_RT53XX=y +CONFIG_RT2800USB_RT55XX=y +CONFIG_RT2800USB_UNKNOWN=y +CONFIG_RTL8187=m +CONFIG_RTL8192CU=n +CONFIG_USB_ZD1201=m +CONFIG_ZD1211RW=m +CONFIG_MAC80211_HWSIM=m +CONFIG_USB_NET_RNDIS_WLAN=m +CONFIG_WIMAX_I2400M_USB=m +CONFIG_IEEE802154_AT86RF230=m +CONFIG_IEEE802154_MRF24J40=m +CONFIG_IEEE802154_CC2520=m +CONFIG_INPUT_POLLDEV=m +# CONFIG_INPUT_MOUSEDEV_PSAUX is not set +CONFIG_INPUT_JOYDEV=m +CONFIG_INPUT_EVDEV=m +# CONFIG_KEYBOARD_ATKBD is not set +CONFIG_KEYBOARD_GPIO=m +# CONFIG_INPUT_MOUSE is not set +CONFIG_INPUT_JOYSTICK=y +CONFIG_JOYSTICK_IFORCE=m +CONFIG_JOYSTICK_IFORCE_USB=y +CONFIG_JOYSTICK_XPAD=m +CONFIG_JOYSTICK_XPAD_FF=y +CONFIG_JOYSTICK_XPAD_LEDS=y +CONFIG_JOYSTICK_RPISENSE=m +CONFIG_INPUT_TOUCHSCREEN=y +CONFIG_TOUCHSCREEN_ADS7846=m +CONFIG_TOUCHSCREEN_EGALAX=m +CONFIG_TOUCHSCREEN_FT6236=m +CONFIG_TOUCHSCREEN_RPI_FT5406=m +CONFIG_TOUCHSCREEN_USB_COMPOSITE=m +CONFIG_TOUCHSCREEN_STMPE=m +CONFIG_INPUT_MISC=y +CONFIG_INPUT_AD714X=m +CONFIG_INPUT_ATI_REMOTE2=m +CONFIG_INPUT_KEYSPAN_REMOTE=m +CONFIG_INPUT_POWERMATE=m +CONFIG_INPUT_YEALINK=m +CONFIG_INPUT_CM109=m +CONFIG_INPUT_UINPUT=m +CONFIG_INPUT_GPIO_ROTARY_ENCODER=m +CONFIG_INPUT_ADXL34X=m +CONFIG_INPUT_CMA3000=m +CONFIG_SERIO=m +CONFIG_SERIO_RAW=m +CONFIG_GAMEPORT=m +CONFIG_GAMEPORT_NS558=m +CONFIG_GAMEPORT_L4=m +CONFIG_BRCM_CHAR_DRIVERS=n +CONFIG_BCM_VC_CMA=n +CONFIG_BCM_VCIO=n +CONFIG_BCM_VC_SM=n +# CONFIG_LEGACY_PTYS is not set +# CONFIG_DEVKMEM is not set +CONFIG_SERIAL_8250=y +# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set +CONFIG_SERIAL_8250_CONSOLE=y +# CONFIG_SERIAL_8250_DMA is not set +CONFIG_SERIAL_8250_NR_UARTS=1 +CONFIG_SERIAL_8250_RUNTIME_UARTS=0 +CONFIG_SERIAL_OF_PLATFORM=y +CONFIG_SERIAL_AMBA_PL011=y +CONFIG_SERIAL_AMBA_PL011_CONSOLE=y +CONFIG_SERIAL_SC16IS7XX=m +CONFIG_SERIAL_SC16IS7XX_SPI=y +CONFIG_TTY_PRINTK=y +CONFIG_HW_RANDOM=y +CONFIG_RAW_DRIVER=y +CONFIG_I2C=y +CONFIG_I2C_CHARDEV=m +CONFIG_I2C_MUX_PCA954x=m +CONFIG_I2C_BCM2708=m +CONFIG_I2C_GPIO=m +CONFIG_SPI=y +CONFIG_SPI_BCM2835=m +CONFIG_SPI_BCM2835AUX=m +CONFIG_SPI_SPIDEV=y +CONFIG_PPS=m +CONFIG_PPS_CLIENT_LDISC=m +CONFIG_PPS_CLIENT_GPIO=m +CONFIG_GPIO_SYSFS=y +CONFIG_GPIO_BCM_VIRT=y +CONFIG_GPIO_ARIZONA=m +CONFIG_GPIO_STMPE=y +CONFIG_GPIO_MCP23S08=m +CONFIG_W1=m +CONFIG_W1_MASTER_DS2490=m +CONFIG_W1_MASTER_DS2482=m +CONFIG_W1_MASTER_DS1WM=m +CONFIG_W1_MASTER_GPIO=m +CONFIG_W1_SLAVE_THERM=m +CONFIG_W1_SLAVE_SMEM=m +CONFIG_W1_SLAVE_DS2408=m +CONFIG_W1_SLAVE_DS2413=m +CONFIG_W1_SLAVE_DS2406=m +CONFIG_W1_SLAVE_DS2423=m +CONFIG_W1_SLAVE_DS2431=m +CONFIG_W1_SLAVE_DS2433=m +CONFIG_W1_SLAVE_DS2760=m +CONFIG_W1_SLAVE_DS2780=m +CONFIG_W1_SLAVE_DS2781=m +CONFIG_W1_SLAVE_DS28E04=m +CONFIG_W1_SLAVE_BQ27000=m +CONFIG_BATTERY_DS2760=m +CONFIG_POWER_RESET=y +CONFIG_POWER_RESET_GPIO=y +CONFIG_HWMON=m +CONFIG_SENSORS_LM75=m +CONFIG_SENSORS_SHT21=m +CONFIG_SENSORS_SHTC1=m +CONFIG_THERMAL=y +CONFIG_THERMAL_BCM2835=y +CONFIG_WATCHDOG=y +CONFIG_BCM2835_WDT=y +CONFIG_UCB1400_CORE=m +CONFIG_MFD_STMPE=y +CONFIG_STMPE_SPI=y +CONFIG_MFD_ARIZONA_I2C=m +CONFIG_MFD_ARIZONA_SPI=m +CONFIG_MFD_WM5102=y +CONFIG_MEDIA_SUPPORT=m +CONFIG_MEDIA_CAMERA_SUPPORT=y +CONFIG_MEDIA_ANALOG_TV_SUPPORT=y +CONFIG_MEDIA_DIGITAL_TV_SUPPORT=y +CONFIG_MEDIA_RADIO_SUPPORT=y +CONFIG_MEDIA_RC_SUPPORT=y +CONFIG_MEDIA_CONTROLLER=y +CONFIG_LIRC=m +CONFIG_RC_DEVICES=y +CONFIG_RC_ATI_REMOTE=m +CONFIG_IR_IMON=m +CONFIG_IR_MCEUSB=m +CONFIG_IR_REDRAT3=m +CONFIG_IR_STREAMZAP=m +CONFIG_IR_IGUANA=m +CONFIG_IR_TTUSBIR=m +CONFIG_RC_LOOPBACK=m +CONFIG_IR_GPIO_CIR=m +CONFIG_MEDIA_USB_SUPPORT=y +CONFIG_USB_VIDEO_CLASS=m +CONFIG_USB_M5602=m +CONFIG_USB_STV06XX=m +CONFIG_USB_GL860=m +CONFIG_USB_GSPCA_BENQ=m +CONFIG_USB_GSPCA_CONEX=m +CONFIG_USB_GSPCA_CPIA1=m +CONFIG_USB_GSPCA_DTCS033=m +CONFIG_USB_GSPCA_ETOMS=m +CONFIG_USB_GSPCA_FINEPIX=m +CONFIG_USB_GSPCA_JEILINJ=m +CONFIG_USB_GSPCA_JL2005BCD=m +CONFIG_USB_GSPCA_KINECT=m +CONFIG_USB_GSPCA_KONICA=m +CONFIG_USB_GSPCA_MARS=m +CONFIG_USB_GSPCA_MR97310A=m +CONFIG_USB_GSPCA_NW80X=m +CONFIG_USB_GSPCA_OV519=m +CONFIG_USB_GSPCA_OV534=m +CONFIG_USB_GSPCA_OV534_9=m +CONFIG_USB_GSPCA_PAC207=m +CONFIG_USB_GSPCA_PAC7302=m +CONFIG_USB_GSPCA_PAC7311=m +CONFIG_USB_GSPCA_SE401=m +CONFIG_USB_GSPCA_SN9C2028=m +CONFIG_USB_GSPCA_SN9C20X=m +CONFIG_USB_GSPCA_SONIXB=m +CONFIG_USB_GSPCA_SONIXJ=m +CONFIG_USB_GSPCA_SPCA500=m +CONFIG_USB_GSPCA_SPCA501=m +CONFIG_USB_GSPCA_SPCA505=m +CONFIG_USB_GSPCA_SPCA506=m +CONFIG_USB_GSPCA_SPCA508=m +CONFIG_USB_GSPCA_SPCA561=m +CONFIG_USB_GSPCA_SPCA1528=m +CONFIG_USB_GSPCA_SQ905=m +CONFIG_USB_GSPCA_SQ905C=m +CONFIG_USB_GSPCA_SQ930X=m +CONFIG_USB_GSPCA_STK014=m +CONFIG_USB_GSPCA_STK1135=m +CONFIG_USB_GSPCA_STV0680=m +CONFIG_USB_GSPCA_SUNPLUS=m +CONFIG_USB_GSPCA_T613=m +CONFIG_USB_GSPCA_TOPRO=m +CONFIG_USB_GSPCA_TV8532=m +CONFIG_USB_GSPCA_VC032X=m +CONFIG_USB_GSPCA_VICAM=m +CONFIG_USB_GSPCA_XIRLINK_CIT=m +CONFIG_USB_GSPCA_ZC3XX=m +CONFIG_USB_PWC=m +CONFIG_VIDEO_CPIA2=m +CONFIG_USB_ZR364XX=m +CONFIG_USB_STKWEBCAM=m +CONFIG_USB_S2255=m +CONFIG_VIDEO_USBTV=m +CONFIG_VIDEO_PVRUSB2=m +CONFIG_VIDEO_HDPVR=m +CONFIG_VIDEO_USBVISION=m +CONFIG_VIDEO_STK1160_COMMON=m +CONFIG_VIDEO_STK1160_AC97=y +CONFIG_VIDEO_GO7007=m +CONFIG_VIDEO_GO7007_USB=m +CONFIG_VIDEO_GO7007_USB_S2250_BOARD=m +CONFIG_VIDEO_AU0828=m +CONFIG_VIDEO_AU0828_RC=y +CONFIG_VIDEO_CX231XX=m +CONFIG_VIDEO_CX231XX_ALSA=m +CONFIG_VIDEO_CX231XX_DVB=m +CONFIG_VIDEO_TM6000=m +CONFIG_VIDEO_TM6000_ALSA=m +CONFIG_VIDEO_TM6000_DVB=m +CONFIG_DVB_USB=m +CONFIG_DVB_USB_A800=m +CONFIG_DVB_USB_DIBUSB_MB=m +CONFIG_DVB_USB_DIBUSB_MB_FAULTY=y +CONFIG_DVB_USB_DIBUSB_MC=m +CONFIG_DVB_USB_DIB0700=m +CONFIG_DVB_USB_UMT_010=m +CONFIG_DVB_USB_CXUSB=m +CONFIG_DVB_USB_M920X=m +CONFIG_DVB_USB_DIGITV=m +CONFIG_DVB_USB_VP7045=m +CONFIG_DVB_USB_VP702X=m +CONFIG_DVB_USB_GP8PSK=m +CONFIG_DVB_USB_NOVA_T_USB2=m +CONFIG_DVB_USB_TTUSB2=m +CONFIG_DVB_USB_DTT200U=m +CONFIG_DVB_USB_OPERA1=m +CONFIG_DVB_USB_AF9005=m +CONFIG_DVB_USB_AF9005_REMOTE=m +CONFIG_DVB_USB_PCTV452E=m +CONFIG_DVB_USB_DW2102=m +CONFIG_DVB_USB_CINERGY_T2=m +CONFIG_DVB_USB_DTV5100=m +CONFIG_DVB_USB_FRIIO=m +CONFIG_DVB_USB_AZ6027=m +CONFIG_DVB_USB_TECHNISAT_USB2=m +CONFIG_DVB_USB_V2=m +CONFIG_DVB_USB_AF9015=m +CONFIG_DVB_USB_AF9035=m +CONFIG_DVB_USB_ANYSEE=m +CONFIG_DVB_USB_AU6610=m +CONFIG_DVB_USB_AZ6007=m +CONFIG_DVB_USB_CE6230=m +CONFIG_DVB_USB_EC168=m +CONFIG_DVB_USB_GL861=m +CONFIG_DVB_USB_LME2510=m +CONFIG_DVB_USB_MXL111SF=m +CONFIG_DVB_USB_RTL28XXU=m +CONFIG_DVB_USB_DVBSKY=m +CONFIG_SMS_USB_DRV=m +CONFIG_DVB_B2C2_FLEXCOP_USB=m +CONFIG_DVB_AS102=m +CONFIG_VIDEO_EM28XX=m +CONFIG_VIDEO_EM28XX_V4L2=m +CONFIG_VIDEO_EM28XX_ALSA=m +CONFIG_VIDEO_EM28XX_DVB=m +CONFIG_V4L_PLATFORM_DRIVERS=y +CONFIG_VIDEO_BCM2835=n +CONFIG_VIDEO_BCM2835_MMAL=n +CONFIG_RADIO_SI470X=y +CONFIG_USB_SI470X=m +CONFIG_I2C_SI470X=m +CONFIG_RADIO_SI4713=m +CONFIG_I2C_SI4713=m +CONFIG_USB_MR800=m +CONFIG_USB_DSBR=m +CONFIG_RADIO_SHARK=m +CONFIG_RADIO_SHARK2=m +CONFIG_USB_KEENE=m +CONFIG_USB_MA901=m +CONFIG_RADIO_TEA5764=m +CONFIG_RADIO_SAA7706H=m +CONFIG_RADIO_TEF6862=m +CONFIG_RADIO_WL1273=m +CONFIG_RADIO_WL128X=m +# CONFIG_MEDIA_SUBDRV_AUTOSELECT is not set +CONFIG_VIDEO_UDA1342=m +CONFIG_VIDEO_SONY_BTF_MPX=m +CONFIG_VIDEO_TVP5150=m +CONFIG_VIDEO_TW2804=m +CONFIG_VIDEO_TW9903=m +CONFIG_VIDEO_TW9906=m +CONFIG_VIDEO_OV7640=m +CONFIG_VIDEO_MT9V011=m +CONFIG_DRM=m +CONFIG_DRM_LOAD_EDID_FIRMWARE=y +CONFIG_DRM_UDL=m +CONFIG_DRM_VC4=m +CONFIG_FB=y +CONFIG_FB_BCM2708=y +CONFIG_FB_UDL=m +CONFIG_FB_SSD1307=m +CONFIG_FB_RPISENSE=m +# CONFIG_BACKLIGHT_GENERIC is not set +CONFIG_BACKLIGHT_RPI=m +CONFIG_BACKLIGHT_GPIO=m +CONFIG_FRAMEBUFFER_CONSOLE=y +CONFIG_LOGO=y +# CONFIG_LOGO_LINUX_MONO is not set +# CONFIG_LOGO_LINUX_VGA16 is not set +CONFIG_SOUND=y +CONFIG_SND=m +CONFIG_SND_SEQUENCER=m +CONFIG_SND_SEQ_DUMMY=m +CONFIG_SND_MIXER_OSS=m +CONFIG_SND_PCM_OSS=m +CONFIG_SND_SEQUENCER_OSS=y +CONFIG_SND_HRTIMER=m +CONFIG_SND_DUMMY=m +CONFIG_SND_ALOOP=m +CONFIG_SND_VIRMIDI=m +CONFIG_SND_MTPAV=m +CONFIG_SND_SERIAL_U16550=m +CONFIG_SND_MPU401=m +CONFIG_SND_ARM=n +CONFIG_SND_BCM2835=n +CONFIG_SND_USB_AUDIO=m +CONFIG_SND_USB_UA101=m +CONFIG_SND_USB_CAIAQ=m +CONFIG_SND_USB_CAIAQ_INPUT=y +CONFIG_SND_USB_6FIRE=m +CONFIG_SND_SOC=m +CONFIG_SND_BCM2835_SOC_I2S=m +CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC=m +CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS=m +CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI=m +CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP=m +CONFIG_SND_BCM2708_SOC_RPI_DAC=m +CONFIG_SND_BCM2708_SOC_RPI_PROTO=m +CONFIG_SND_BCM2708_SOC_JUSTBOOM_DAC=m +CONFIG_SND_BCM2708_SOC_JUSTBOOM_DIGI=m +CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC=m +CONFIG_SND_BCM2708_SOC_IQAUDIO_DIGI=m +CONFIG_SND_BCM2708_SOC_RASPIDAC3=m +CONFIG_SND_BCM2708_SOC_ADAU1977_ADC=m +CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD=m +CONFIG_SND_DIGIDAC1_SOUNDCARD=m +CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO=m +CONFIG_SND_SOC_ADAU1701=m +CONFIG_SND_SOC_WM8804_I2C=m +CONFIG_SND_SIMPLE_CARD=m +CONFIG_SOUND_PRIME=m +CONFIG_HIDRAW=y +CONFIG_UHID=m +CONFIG_HID_A4TECH=m +CONFIG_HID_ACRUX=m +CONFIG_HID_APPLE=m +CONFIG_HID_BELKIN=m +CONFIG_HID_BETOP_FF=m +CONFIG_HID_CHERRY=m +CONFIG_HID_CHICONY=m +CONFIG_HID_CYPRESS=m +CONFIG_HID_DRAGONRISE=m +CONFIG_HID_EMS_FF=m +CONFIG_HID_ELECOM=m +CONFIG_HID_ELO=m +CONFIG_HID_EZKEY=m +CONFIG_HID_GEMBIRD=m +CONFIG_HID_HOLTEK=m +CONFIG_HID_KEYTOUCH=m +CONFIG_HID_KYE=m +CONFIG_HID_UCLOGIC=m +CONFIG_HID_WALTOP=m +CONFIG_HID_GYRATION=m +CONFIG_HID_TWINHAN=m +CONFIG_HID_KENSINGTON=m +CONFIG_HID_LCPOWER=m +CONFIG_HID_LOGITECH=m +CONFIG_HID_LOGITECH_DJ=m +CONFIG_LOGITECH_FF=y +CONFIG_LOGIRUMBLEPAD2_FF=y +CONFIG_LOGIG940_FF=y +CONFIG_HID_MAGICMOUSE=m +CONFIG_HID_MICROSOFT=m +CONFIG_HID_MONTEREY=m +CONFIG_HID_MULTITOUCH=m +CONFIG_HID_NTRIG=m +CONFIG_HID_ORTEK=m +CONFIG_HID_PANTHERLORD=m +CONFIG_HID_PETALYNX=m +CONFIG_HID_PICOLCD=m +CONFIG_HID_ROCCAT=m +CONFIG_HID_SAMSUNG=m +CONFIG_HID_SONY=m +CONFIG_HID_SPEEDLINK=m +CONFIG_HID_SUNPLUS=m +CONFIG_HID_GREENASIA=m +CONFIG_HID_SMARTJOYPLUS=m +CONFIG_HID_TOPSEED=m +CONFIG_HID_THINGM=m +CONFIG_HID_THRUSTMASTER=m +CONFIG_HID_WACOM=m +CONFIG_HID_WIIMOTE=m +CONFIG_HID_XINMO=m +CONFIG_HID_ZEROPLUS=m +CONFIG_HID_ZYDACRON=m +CONFIG_HID_PID=y +CONFIG_USB_HIDDEV=y +CONFIG_USB=y +CONFIG_USB_ANNOUNCE_NEW_DEVICES=y +CONFIG_USB_MON=m +CONFIG_USB_DWCOTG=n +CONFIG_USB_DWC2=y +CONFIG_USB_PRINTER=m +CONFIG_USB_STORAGE=y +CONFIG_USB_STORAGE_REALTEK=m +CONFIG_USB_STORAGE_DATAFAB=m +CONFIG_USB_STORAGE_FREECOM=m +CONFIG_USB_STORAGE_ISD200=m +CONFIG_USB_STORAGE_USBAT=m +CONFIG_USB_STORAGE_SDDR09=m +CONFIG_USB_STORAGE_SDDR55=m +CONFIG_USB_STORAGE_JUMPSHOT=m +CONFIG_USB_STORAGE_ALAUDA=m +CONFIG_USB_STORAGE_ONETOUCH=m +CONFIG_USB_STORAGE_KARMA=m +CONFIG_USB_STORAGE_CYPRESS_ATACB=m +CONFIG_USB_STORAGE_ENE_UB6250=m +CONFIG_USB_MDC800=m +CONFIG_USB_MICROTEK=m +CONFIG_USBIP_CORE=m +CONFIG_USBIP_VHCI_HCD=m +CONFIG_USBIP_HOST=m +CONFIG_USB_SERIAL=m +CONFIG_USB_SERIAL_GENERIC=y +CONFIG_USB_SERIAL_AIRCABLE=m +CONFIG_USB_SERIAL_ARK3116=m +CONFIG_USB_SERIAL_BELKIN=m +CONFIG_USB_SERIAL_CH341=m +CONFIG_USB_SERIAL_WHITEHEAT=m +CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m +CONFIG_USB_SERIAL_CP210X=m +CONFIG_USB_SERIAL_CYPRESS_M8=m +CONFIG_USB_SERIAL_EMPEG=m +CONFIG_USB_SERIAL_FTDI_SIO=m +CONFIG_USB_SERIAL_VISOR=m +CONFIG_USB_SERIAL_IPAQ=m +CONFIG_USB_SERIAL_IR=m +CONFIG_USB_SERIAL_EDGEPORT=m +CONFIG_USB_SERIAL_EDGEPORT_TI=m +CONFIG_USB_SERIAL_F81232=m +CONFIG_USB_SERIAL_GARMIN=m +CONFIG_USB_SERIAL_IPW=m +CONFIG_USB_SERIAL_IUU=m +CONFIG_USB_SERIAL_KEYSPAN_PDA=m +CONFIG_USB_SERIAL_KEYSPAN=m +CONFIG_USB_SERIAL_KLSI=m +CONFIG_USB_SERIAL_KOBIL_SCT=m +CONFIG_USB_SERIAL_MCT_U232=m +CONFIG_USB_SERIAL_METRO=m +CONFIG_USB_SERIAL_MOS7720=m +CONFIG_USB_SERIAL_MOS7840=m +CONFIG_USB_SERIAL_NAVMAN=m +CONFIG_USB_SERIAL_PL2303=m +CONFIG_USB_SERIAL_OTI6858=m +CONFIG_USB_SERIAL_QCAUX=m +CONFIG_USB_SERIAL_QUALCOMM=m +CONFIG_USB_SERIAL_SPCP8X5=m +CONFIG_USB_SERIAL_SAFE=m +CONFIG_USB_SERIAL_SIERRAWIRELESS=m +CONFIG_USB_SERIAL_SYMBOL=m +CONFIG_USB_SERIAL_TI=m +CONFIG_USB_SERIAL_CYBERJACK=m +CONFIG_USB_SERIAL_XIRCOM=m +CONFIG_USB_SERIAL_OPTION=m +CONFIG_USB_SERIAL_OMNINET=m +CONFIG_USB_SERIAL_OPTICON=m +CONFIG_USB_SERIAL_XSENS_MT=m +CONFIG_USB_SERIAL_WISHBONE=m +CONFIG_USB_SERIAL_SSU100=m +CONFIG_USB_SERIAL_QT2=m +CONFIG_USB_SERIAL_DEBUG=m +CONFIG_USB_EMI62=m +CONFIG_USB_EMI26=m +CONFIG_USB_ADUTUX=m +CONFIG_USB_SEVSEG=m +CONFIG_USB_RIO500=m +CONFIG_USB_LEGOTOWER=m +CONFIG_USB_LCD=m +CONFIG_USB_CYPRESS_CY7C63=m +CONFIG_USB_CYTHERM=m +CONFIG_USB_IDMOUSE=m +CONFIG_USB_FTDI_ELAN=m +CONFIG_USB_APPLEDISPLAY=m +CONFIG_USB_LD=m +CONFIG_USB_TRANCEVIBRATOR=m +CONFIG_USB_IOWARRIOR=m +CONFIG_USB_TEST=m +CONFIG_USB_ISIGHTFW=m +CONFIG_USB_YUREX=m +CONFIG_USB_ATM=m +CONFIG_USB_SPEEDTOUCH=m +CONFIG_USB_CXACRU=m +CONFIG_USB_UEAGLEATM=m +CONFIG_USB_XUSBATM=m +CONFIG_MMC=y +CONFIG_MMC_BLOCK_MINORS=32 +CONFIG_MMC_BCM2835=y +CONFIG_MMC_BCM2835_DMA=y +CONFIG_MMC_BCM2835_SDHOST=y +CONFIG_MMC_SDHCI=y +CONFIG_MMC_SDHCI_PLTFM=y +CONFIG_MMC_SPI=m +CONFIG_LEDS_CLASS=y +CONFIG_LEDS_GPIO=y +CONFIG_LEDS_TRIGGER_TIMER=y +CONFIG_LEDS_TRIGGER_ONESHOT=y +CONFIG_LEDS_TRIGGER_HEARTBEAT=y +CONFIG_LEDS_TRIGGER_BACKLIGHT=y +CONFIG_LEDS_TRIGGER_CPU=y +CONFIG_LEDS_TRIGGER_GPIO=y +CONFIG_LEDS_TRIGGER_DEFAULT_ON=y +CONFIG_LEDS_TRIGGER_TRANSIENT=m +CONFIG_LEDS_TRIGGER_CAMERA=m +CONFIG_LEDS_TRIGGER_INPUT=y +CONFIG_LEDS_TRIGGER_PANIC=y +CONFIG_RTC_CLASS=y +# CONFIG_RTC_HCTOSYS is not set +CONFIG_RTC_DRV_DS1307=m +CONFIG_RTC_DRV_DS1374=m +CONFIG_RTC_DRV_DS1672=m +CONFIG_RTC_DRV_MAX6900=m +CONFIG_RTC_DRV_RS5C372=m +CONFIG_RTC_DRV_ISL1208=m +CONFIG_RTC_DRV_ISL12022=m +CONFIG_RTC_DRV_ISL12057=m +CONFIG_RTC_DRV_X1205=m +CONFIG_RTC_DRV_PCF8523=m +CONFIG_RTC_DRV_PCF8563=m +CONFIG_RTC_DRV_PCF8583=m +CONFIG_RTC_DRV_M41T80=m +CONFIG_RTC_DRV_BQ32K=m +CONFIG_RTC_DRV_S35390A=m +CONFIG_RTC_DRV_FM3130=m +CONFIG_RTC_DRV_RX8581=m +CONFIG_RTC_DRV_RX8025=m +CONFIG_RTC_DRV_EM3027=m +CONFIG_RTC_DRV_M41T93=m +CONFIG_RTC_DRV_M41T94=m +CONFIG_RTC_DRV_DS1302=m +CONFIG_RTC_DRV_DS1305=m +CONFIG_RTC_DRV_DS1390=m +CONFIG_RTC_DRV_R9701=m +CONFIG_RTC_DRV_RX4581=m +CONFIG_RTC_DRV_RS5C348=m +CONFIG_RTC_DRV_MAX6902=m +CONFIG_RTC_DRV_PCF2123=m +CONFIG_RTC_DRV_DS3232=m +CONFIG_RTC_DRV_PCF2127=m +CONFIG_RTC_DRV_RV3029C2=m +CONFIG_DMADEVICES=y +CONFIG_DMA_BCM2835=y +CONFIG_DMA_BCM2708=y +CONFIG_UIO=m +CONFIG_UIO_PDRV_GENIRQ=m +CONFIG_STAGING=y +CONFIG_PRISM2_USB=m +CONFIG_R8712U=m +CONFIG_R8188EU=m +CONFIG_R8723AU=m +CONFIG_VT6656=m +CONFIG_SPEAKUP=m +CONFIG_SPEAKUP_SYNTH_SOFT=m +CONFIG_STAGING_MEDIA=y +CONFIG_LIRC_STAGING=y +CONFIG_LIRC_IMON=m +CONFIG_LIRC_RPI=m +CONFIG_LIRC_SASEM=m +CONFIG_LIRC_SERIAL=m +CONFIG_FB_TFT=m +CONFIG_FB_TFT_AGM1264K_FL=m +CONFIG_FB_TFT_BD663474=m +CONFIG_FB_TFT_HX8340BN=m +CONFIG_FB_TFT_HX8347D=m +CONFIG_FB_TFT_HX8353D=m +CONFIG_FB_TFT_ILI9163=m +CONFIG_FB_TFT_ILI9320=m +CONFIG_FB_TFT_ILI9325=m +CONFIG_FB_TFT_ILI9340=m +CONFIG_FB_TFT_ILI9341=m +CONFIG_FB_TFT_ILI9481=m +CONFIG_FB_TFT_ILI9486=m +CONFIG_FB_TFT_PCD8544=m +CONFIG_FB_TFT_RA8875=m +CONFIG_FB_TFT_S6D02A1=m +CONFIG_FB_TFT_S6D1121=m +CONFIG_FB_TFT_SSD1289=m +CONFIG_FB_TFT_SSD1306=m +CONFIG_FB_TFT_SSD1331=m +CONFIG_FB_TFT_SSD1351=m +CONFIG_FB_TFT_ST7735R=m +CONFIG_FB_TFT_TINYLCD=m +CONFIG_FB_TFT_TLS8204=m +CONFIG_FB_TFT_UC1701=m +CONFIG_FB_TFT_UPD161704=m +CONFIG_FB_TFT_WATTEROTT=m +CONFIG_FB_FLEX=m +CONFIG_FB_TFT_FBTFT_DEVICE=m +CONFIG_MAILBOX=y +CONFIG_BCM2835_MBOX=y +# CONFIG_IOMMU_SUPPORT is not set +CONFIG_RASPBERRYPI_POWER=y +CONFIG_EXTCON=m +CONFIG_EXTCON_ARIZONA=m +CONFIG_IIO=m +CONFIG_IIO_BUFFER=y +CONFIG_IIO_BUFFER_CB=m +CONFIG_IIO_KFIFO_BUF=m +CONFIG_MCP320X=m +CONFIG_MCP3422=m +CONFIG_DHT11=m +CONFIG_PWM_BCM2835=m +CONFIG_PWM_PCA9685=m +CONFIG_RASPBERRYPI_FIRMWARE=y +CONFIG_EXT4_FS=y +CONFIG_EXT4_FS_POSIX_ACL=y +CONFIG_EXT4_FS_SECURITY=y +CONFIG_REISERFS_FS=m +CONFIG_REISERFS_FS_XATTR=y +CONFIG_REISERFS_FS_POSIX_ACL=y +CONFIG_REISERFS_FS_SECURITY=y +CONFIG_JFS_FS=m +CONFIG_JFS_POSIX_ACL=y +CONFIG_JFS_SECURITY=y +CONFIG_JFS_STATISTICS=y +CONFIG_XFS_FS=m +CONFIG_XFS_QUOTA=y +CONFIG_XFS_POSIX_ACL=y +CONFIG_XFS_RT=y +CONFIG_GFS2_FS=m +CONFIG_OCFS2_FS=m +CONFIG_BTRFS_FS=m +CONFIG_BTRFS_FS_POSIX_ACL=y +CONFIG_NILFS2_FS=m +CONFIG_F2FS_FS=y +CONFIG_FANOTIFY=y +CONFIG_QFMT_V1=m +CONFIG_QFMT_V2=m +CONFIG_AUTOFS4_FS=y +CONFIG_FUSE_FS=m +CONFIG_CUSE=m +CONFIG_OVERLAY_FS=m +CONFIG_FSCACHE=y +CONFIG_FSCACHE_STATS=y +CONFIG_FSCACHE_HISTOGRAM=y +CONFIG_CACHEFILES=y +CONFIG_ISO9660_FS=m +CONFIG_JOLIET=y +CONFIG_ZISOFS=y +CONFIG_UDF_FS=m +CONFIG_MSDOS_FS=y +CONFIG_VFAT_FS=y +CONFIG_FAT_DEFAULT_IOCHARSET="ascii" +CONFIG_NTFS_FS=m +CONFIG_NTFS_RW=y +CONFIG_TMPFS=y +CONFIG_TMPFS_POSIX_ACL=y +CONFIG_ECRYPT_FS=m +CONFIG_HFS_FS=m +CONFIG_HFSPLUS_FS=m +CONFIG_JFFS2_FS=m +CONFIG_JFFS2_SUMMARY=y +CONFIG_UBIFS_FS=m +CONFIG_SQUASHFS=m +CONFIG_SQUASHFS_XATTR=y +CONFIG_SQUASHFS_LZO=y +CONFIG_SQUASHFS_XZ=y +CONFIG_NFS_FS=y +CONFIG_NFS_V3_ACL=y +CONFIG_NFS_V4=y +CONFIG_NFS_SWAP=y +CONFIG_ROOT_NFS=y +CONFIG_NFS_FSCACHE=y +CONFIG_NFSD=m +CONFIG_NFSD_V3_ACL=y +CONFIG_NFSD_V4=y +CONFIG_CIFS=m +CONFIG_CIFS_WEAK_PW_HASH=y +CONFIG_CIFS_UPCALL=y +CONFIG_CIFS_XATTR=y +CONFIG_CIFS_POSIX=y +CONFIG_CIFS_ACL=y +CONFIG_CIFS_DFS_UPCALL=y +CONFIG_CIFS_SMB2=y +CONFIG_CIFS_FSCACHE=y +CONFIG_9P_FS=m +CONFIG_9P_FS_POSIX_ACL=y +CONFIG_NLS_DEFAULT="utf8" +CONFIG_NLS_CODEPAGE_437=y +CONFIG_NLS_CODEPAGE_737=m +CONFIG_NLS_CODEPAGE_775=m +CONFIG_NLS_CODEPAGE_850=m +CONFIG_NLS_CODEPAGE_852=m +CONFIG_NLS_CODEPAGE_855=m +CONFIG_NLS_CODEPAGE_857=m +CONFIG_NLS_CODEPAGE_860=m +CONFIG_NLS_CODEPAGE_861=m +CONFIG_NLS_CODEPAGE_862=m +CONFIG_NLS_CODEPAGE_863=m +CONFIG_NLS_CODEPAGE_864=m +CONFIG_NLS_CODEPAGE_865=m +CONFIG_NLS_CODEPAGE_866=m +CONFIG_NLS_CODEPAGE_869=m +CONFIG_NLS_CODEPAGE_936=m +CONFIG_NLS_CODEPAGE_950=m +CONFIG_NLS_CODEPAGE_932=m +CONFIG_NLS_CODEPAGE_949=m +CONFIG_NLS_CODEPAGE_874=m +CONFIG_NLS_ISO8859_8=m +CONFIG_NLS_CODEPAGE_1250=m +CONFIG_NLS_CODEPAGE_1251=m +CONFIG_NLS_ASCII=y +CONFIG_NLS_ISO8859_1=m +CONFIG_NLS_ISO8859_2=m +CONFIG_NLS_ISO8859_3=m +CONFIG_NLS_ISO8859_4=m +CONFIG_NLS_ISO8859_5=m +CONFIG_NLS_ISO8859_6=m +CONFIG_NLS_ISO8859_7=m +CONFIG_NLS_ISO8859_9=m +CONFIG_NLS_ISO8859_13=m +CONFIG_NLS_ISO8859_14=m +CONFIG_NLS_ISO8859_15=m +CONFIG_NLS_KOI8_R=m +CONFIG_NLS_KOI8_U=m +CONFIG_DLM=m +CONFIG_PRINTK_TIME=y +CONFIG_BOOT_PRINTK_DELAY=y +CONFIG_DEBUG_MEMORY_INIT=y +CONFIG_DETECT_HUNG_TASK=y +CONFIG_TIMER_STATS=y +CONFIG_IRQSOFF_TRACER=y +CONFIG_SCHED_TRACER=y +CONFIG_STACK_TRACER=y +CONFIG_BLK_DEV_IO_TRACE=y +# CONFIG_KPROBE_EVENT is not set +CONFIG_FUNCTION_PROFILER=y +CONFIG_KGDB=y +CONFIG_KGDB_KDB=y +CONFIG_KDB_KEYBOARD=y +CONFIG_CRYPTO_USER=m +CONFIG_CRYPTO_CBC=y +CONFIG_CRYPTO_CTS=m +CONFIG_CRYPTO_XTS=m +CONFIG_CRYPTO_XCBC=m +CONFIG_CRYPTO_TGR192=m +CONFIG_CRYPTO_WP512=m +CONFIG_CRYPTO_CAST5=m +CONFIG_CRYPTO_DES=y +CONFIG_CRYPTO_USER_API_SKCIPHER=m +CONFIG_ARM64_CRYPTO=y +CONFIG_CRC_ITU_T=y +CONFIG_LIBCRC32C=y +CONFIG_BCM2835_VCHIQ=n From b90de4bf27dc5f62e60dad127169218c6d830649 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Wed, 14 Sep 2016 09:18:09 +0100 Subject: [PATCH 099/165] raspberrypi-firmware: Define the MBOX channel in the header. Signed-off-by: Eric Anholt --- include/soc/bcm2835/raspberrypi-firmware.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/soc/bcm2835/raspberrypi-firmware.h b/include/soc/bcm2835/raspberrypi-firmware.h index c819c21b0158a59c1308882e5a40e3f3fe73cbdf..de2a3dcd562beb752266eaf0070e55861d553f5f 100644 --- a/include/soc/bcm2835/raspberrypi-firmware.h +++ b/include/soc/bcm2835/raspberrypi-firmware.h @@ -12,6 +12,8 @@ #include #include +#define RPI_FIRMWARE_CHAN_FB 1 + struct rpi_firmware; enum rpi_firmware_property_status { From fbcb1aa2507b4d4b0e47310e79c16ced1d3c36c2 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Wed, 14 Sep 2016 09:16:19 +0100 Subject: [PATCH 100/165] raspberrypi-firmware: Export the general transaction function. The vc4-firmware-kms module is going to be doing the MBOX FB call. Signed-off-by: Eric Anholt --- drivers/firmware/raspberrypi.c | 3 ++- include/soc/bcm2835/raspberrypi-firmware.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/raspberrypi.c b/drivers/firmware/raspberrypi.c index 3f070bd38a91511c986e3fb114b15bd4ac32634c..f261b64d1657c02290904d841e1f087c34e27ded 100644 --- a/drivers/firmware/raspberrypi.c +++ b/drivers/firmware/raspberrypi.c @@ -42,7 +42,7 @@ static void response_callback(struct mbox_client *cl, void *msg) * Sends a request to the firmware through the BCM2835 mailbox driver, * and synchronously waits for the reply. */ -static int +int rpi_firmware_transaction(struct rpi_firmware *fw, u32 chan, u32 data) { u32 message = MBOX_MSG(chan, data); @@ -63,6 +63,7 @@ rpi_firmware_transaction(struct rpi_firmware *fw, u32 chan, u32 data) return ret; } +EXPORT_SYMBOL_GPL(rpi_firmware_transaction); /** * rpi_firmware_property_list - Submit firmware property list diff --git a/include/soc/bcm2835/raspberrypi-firmware.h b/include/soc/bcm2835/raspberrypi-firmware.h index de2a3dcd562beb752266eaf0070e55861d553f5f..dc7fd58afd5dddebf9b17065bb069a1db663362c 100644 --- a/include/soc/bcm2835/raspberrypi-firmware.h +++ b/include/soc/bcm2835/raspberrypi-firmware.h @@ -156,5 +156,6 @@ static inline struct rpi_firmware *rpi_firmware_get(struct device_node *firmware return NULL; } #endif +int rpi_firmware_transaction(struct rpi_firmware *fw, u32 chan, u32 data); #endif /* __SOC_RASPBERRY_FIRMWARE_H__ */ From b1ee95c4f890ff8efedd86c367d8e33133eb6dcd Mon Sep 17 00:00:00 2001 From: Electron752 Date: Thu, 12 Jan 2017 07:07:08 -0800 Subject: [PATCH 101/165] ARM64: Make it work again on 4.9 (#1790) * Invoke the dtc compiler with the same options used in arm mode. * ARM64 now uses the bcm2835 platform just like ARM32. * ARM64: Update bcmrpi3_defconfig Signed-off-by: Michael Zoran --- arch/arm64/Kconfig.platforms | 22 ------ arch/arm64/boot/dts/broadcom/Makefile | 10 ++- arch/arm64/boot/dts/overlays | 1 + arch/arm64/configs/bcmrpi3_defconfig | 125 +++++++++++----------------------- 4 files changed, 48 insertions(+), 110 deletions(-) create mode 120000 arch/arm64/boot/dts/overlays diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms index f04bc208f878322d35b94afafe74a7caf7d93820..129cc5ae4091489c08eb751f3e1b85b6eaa2eb9c 100644 --- a/arch/arm64/Kconfig.platforms +++ b/arch/arm64/Kconfig.platforms @@ -1,27 +1,5 @@ menu "Platform selection" -config MACH_BCM2709 - bool - -config ARCH_BCM2709 - bool "Broadcom BCM2709 family" - select MACH_BCM2709 - select HAVE_SMP - select ARM_AMBA - select COMMON_CLK - select ARCH_HAS_CPUFREQ - select GENERIC_CLOCKEVENTS - select MULTI_IRQ_HANDLER - select SPARSE_IRQ - select MFD_SYSCON - select VC4 - select USE_OF - select ARCH_REQUIRE_GPIOLIB - select PINCTRL - select PINCTRL_BCM2835 - help - This enables support for Broadcom BCM2709 boards. - config ARCH_SUNXI bool "Allwinner sunxi 64-bit SoC Family" select GENERIC_IRQ_CHIP diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile index db4e66ee2a455eb1ec7d49c1fcb1c6c0a7a3ad13..6b1bd6e89c472f8f048c5a87e194567addc7ccd6 100644 --- a/arch/arm64/boot/dts/broadcom/Makefile +++ b/arch/arm64/boot/dts/broadcom/Makefile @@ -1,7 +1,15 @@ +# Enable fixups to support overlays on BCM2835 platforms + +ifeq ($(CONFIG_ARCH_BCM2835),y) +DTC_FLAGS ?= -@ -H epapr +endif + dtb-$(CONFIG_ARCH_BCM2835) += bcm2837-rpi-3-b.dtb dtb-$(CONFIG_ARCH_BCM_IPROC) += ns2-svk.dtb ns2-xmc.dtb dtb-$(CONFIG_ARCH_VULCAN) += vulcan-eval.dtb -dtb-$(CONFIG_ARCH_BCM2709) += bcm2710-rpi-3-b.dtb +dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-3-b.dtb + +dts-dirs += ../overlays always := $(dtb-y) subdir-y := $(dts-dirs) diff --git a/arch/arm64/boot/dts/overlays b/arch/arm64/boot/dts/overlays new file mode 120000 index 0000000000000000000000000000000000000000..ded08646b6f66cdf734f8bf9c1be3a2e3a7103d7 --- /dev/null +++ b/arch/arm64/boot/dts/overlays @@ -0,0 +1 @@ +../../../arm/boot/dts/overlays \ No newline at end of file diff --git a/arch/arm64/configs/bcmrpi3_defconfig b/arch/arm64/configs/bcmrpi3_defconfig index e6b09fafa27eed2b762e3d53b55041f793683d27..c7e891d72969a388d9b135a36dbfc9c9cb609bf8 100644 --- a/arch/arm64/configs/bcmrpi3_defconfig +++ b/arch/arm64/configs/bcmrpi3_defconfig @@ -1,52 +1,9 @@ -# CONFIG_ARM_PATCH_PHYS_VIRT is not set -CONFIG_PHYS_OFFSET=0 CONFIG_LOCALVERSION="-v8" # CONFIG_LOCALVERSION_AUTO is not set -CONFIG_64BIT=y CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y CONFIG_NO_HZ=y CONFIG_HIGH_RES_TIMERS=y - -# -# ARM errata workarounds via the alternatives framework -# -CONFIG_ARM64_ERRATUM_826319=n -CONFIG_ARM64_ERRATUM_827319=n -CONFIG_ARM64_ERRATUM_824069=n -CONFIG_ARM64_ERRATUM_819472=n -CONFIG_ARM64_ERRATUM_832075=n -CONFIG_ARM64_ERRATUM_845719=n -CONFIG_ARM64_ERRATUM_843419=n -CONFIG_CAVIUM_ERRATUM_22375=n -CONFIG_CAVIUM_ERRATUM_23154=n -CONFIG_CAVIUM_ERRATUM_27456=n -CONFIG_ARM64_4K_PAGES=y -CONFIG_ARM64_VA_BITS_39=y -CONFIG_ARM64_VA_BITS=39 -CONFIG_SCHED_MC=y -CONFIG_NR_CPUS=4 -CONFIG_HOTPLUG_CPU=y -CONFIG_ARMV8_DEPRECATED=y -CONFIG_SWP_EMULATION=y -CONFIG_CP15_BARRIER_EMULATION=y -CONFIG_SETEND_EMULATION=y - -# -# ARMv8.1 architectural features -# -CONFIG_ARM64_HW_AFDBM=y -CONFIG_ARM64_PAN=y -CONFIG_ARM64_LSE_ATOMICS=y -CONFIG_ARM64_VHE=y - -# -# ARMv8.2 architectural features -# -CONFIG_ARM64_UAO=y -CONFIG_ARM64_MODULE_CMODEL_LARGE=n -CONFIG_RANDOMIZE_BASE=n - CONFIG_BSD_PROCESS_ACCT=y CONFIG_BSD_PROCESS_ACCT_V3=y CONFIG_TASKSTATS=y @@ -55,7 +12,6 @@ CONFIG_TASK_XACCT=y CONFIG_TASK_IO_ACCOUNTING=y CONFIG_IKCONFIG=m CONFIG_IKCONFIG_PROC=y -CONFIG_NMI_LOG_BUF_SHIFT=12 CONFIG_MEMCG=y CONFIG_BLK_CGROUP=y CONFIG_CGROUP_FREEZER=y @@ -69,54 +25,49 @@ CONFIG_BLK_DEV_INITRD=y CONFIG_EMBEDDED=y # CONFIG_COMPAT_BRK is not set CONFIG_PROFILING=y -CONFIG_OPROFILE=m CONFIG_KPROBES=y CONFIG_JUMP_LABEL=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODVERSIONS=y CONFIG_MODULE_SRCVERSION_ALL=y -CONFIG_TRIM_UNUSED_KSYMS=y CONFIG_BLK_DEV_THROTTLING=y CONFIG_PARTITION_ADVANCED=y CONFIG_MAC_PARTITION=y CONFIG_CFQ_GROUP_IOSCHED=y -CONFIG_ARCH_BCM2709=y -# CONFIG_CACHE_L2X0 is not set -CONFIG_SMP=y -CONFIG_HAVE_ARM_ARCH_TIMER=y -CONFIG_VMSPLIT_2G=y -CONFIG_PREEMPT_VOLUNTARY=y -CONFIG_AEABI=y -CONFIG_OABI_COMPAT=y -# CONFIG_CPU_SW_DOMAIN_PAN is not set +CONFIG_ARCH_BCM2835=y +# CONFIG_CAVIUM_ERRATUM_22375 is not set +# CONFIG_CAVIUM_ERRATUM_23154 is not set +# CONFIG_CAVIUM_ERRATUM_27456 is not set +CONFIG_SCHED_MC=y +CONFIG_NR_CPUS=4 +CONFIG_PREEMPT=y +CONFIG_HZ_1000=y CONFIG_CLEANCACHE=y CONFIG_FRONTSWAP=y CONFIG_CMA=y CONFIG_ZSMALLOC=m CONFIG_PGTABLE_MAPPING=y -CONFIG_UACCESS_WITH_MEMCPY=y CONFIG_SECCOMP=y -# CONFIG_ATAGS is not set -CONFIG_ZBOOT_ROM_TEXT=0x0 -CONFIG_ZBOOT_ROM_BSS=0x0 +CONFIG_ARMV8_DEPRECATED=y +CONFIG_SWP_EMULATION=y +CONFIG_CP15_BARRIER_EMULATION=y +CONFIG_SETEND_EMULATION=y CONFIG_CMDLINE="console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait" +CONFIG_BINFMT_MISC=y +CONFIG_COMPAT=y +# CONFIG_SUSPEND is not set +CONFIG_PM=y +CONFIG_CPU_IDLE=y +CONFIG_ARM_CPUIDLE=y CONFIG_CPU_FREQ=y +CONFIG_CPU_FREQ_STAT=y CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE=y CONFIG_CPU_FREQ_GOV_PERFORMANCE=y CONFIG_CPU_FREQ_GOV_USERSPACE=y CONFIG_CPU_FREQ_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y -CONFIG_VFP=y -CONFIG_NEON=y -CONFIG_KERNEL_MODE_NEON=y -CONFIG_BINFMT_MISC=m -CONFIG_COMPAT=y -CONFIG_SYSVIPC_COMPAT=y - -# CONFIG_SUSPEND is not set -CONFIG_PM=y CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y @@ -437,6 +388,7 @@ CONFIG_BT_MRVL=m CONFIG_BT_MRVL_SDIO=m CONFIG_BT_ATH3K=m CONFIG_BT_WILINK=m +CONFIG_CFG80211=m CONFIG_MAC80211=m CONFIG_MAC80211_MESH=y CONFIG_WIMAX=m @@ -490,7 +442,6 @@ CONFIG_BONDING=m CONFIG_DUMMY=m CONFIG_IFB=m CONFIG_MACVLAN=m -CONFIG_IPVLAN=m CONFIG_VXLAN=m CONFIG_NETCONSOLE=m CONFIG_TUN=m @@ -579,8 +530,6 @@ CONFIG_RT2800USB_RT3573=y CONFIG_RT2800USB_RT53XX=y CONFIG_RT2800USB_RT55XX=y CONFIG_RT2800USB_UNKNOWN=y -CONFIG_RTL8187=m -CONFIG_RTL8192CU=n CONFIG_USB_ZD1201=m CONFIG_ZD1211RW=m CONFIG_MAC80211_HWSIM=m @@ -606,7 +555,7 @@ CONFIG_JOYSTICK_RPISENSE=m CONFIG_INPUT_TOUCHSCREEN=y CONFIG_TOUCHSCREEN_ADS7846=m CONFIG_TOUCHSCREEN_EGALAX=m -CONFIG_TOUCHSCREEN_FT6236=m +CONFIG_TOUCHSCREEN_EKTF2127=m CONFIG_TOUCHSCREEN_RPI_FT5406=m CONFIG_TOUCHSCREEN_USB_COMPOSITE=m CONFIG_TOUCHSCREEN_STMPE=m @@ -626,10 +575,8 @@ CONFIG_SERIO_RAW=m CONFIG_GAMEPORT=m CONFIG_GAMEPORT_NS558=m CONFIG_GAMEPORT_L4=m -CONFIG_BRCM_CHAR_DRIVERS=n -CONFIG_BCM_VC_CMA=n -CONFIG_BCM_VCIO=n -CONFIG_BCM_VC_SM=n +# CONFIG_BCM2835_DEVGPIOMEM is not set +# CONFIG_BCM2835_SMI_DEV is not set # CONFIG_LEGACY_PTYS is not set # CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y @@ -638,6 +585,9 @@ CONFIG_SERIAL_8250_CONSOLE=y # CONFIG_SERIAL_8250_DMA is not set CONFIG_SERIAL_8250_NR_UARTS=1 CONFIG_SERIAL_8250_RUNTIME_UARTS=0 +CONFIG_SERIAL_8250_EXTENDED=y +CONFIG_SERIAL_8250_SHARE_IRQ=y +CONFIG_SERIAL_8250_BCM2835AUX=y CONFIG_SERIAL_OF_PLATFORM=y CONFIG_SERIAL_AMBA_PL011=y CONFIG_SERIAL_AMBA_PL011_CONSOLE=y @@ -650,6 +600,7 @@ CONFIG_I2C=y CONFIG_I2C_CHARDEV=m CONFIG_I2C_MUX_PCA954x=m CONFIG_I2C_BCM2708=m +CONFIG_I2C_BCM2835=m CONFIG_I2C_GPIO=m CONFIG_SPI=y CONFIG_SPI_BCM2835=m @@ -681,13 +632,13 @@ CONFIG_W1_SLAVE_DS2780=m CONFIG_W1_SLAVE_DS2781=m CONFIG_W1_SLAVE_DS28E04=m CONFIG_W1_SLAVE_BQ27000=m -CONFIG_BATTERY_DS2760=m -CONFIG_POWER_RESET=y CONFIG_POWER_RESET_GPIO=y +CONFIG_BATTERY_DS2760=m CONFIG_HWMON=m CONFIG_SENSORS_LM75=m CONFIG_SENSORS_SHT21=m CONFIG_SENSORS_SHTC1=m +CONFIG_SENSORS_INA2XX=m CONFIG_THERMAL=y CONFIG_THERMAL_BCM2835=y CONFIG_WATCHDOG=y @@ -835,8 +786,6 @@ CONFIG_VIDEO_EM28XX_V4L2=m CONFIG_VIDEO_EM28XX_ALSA=m CONFIG_VIDEO_EM28XX_DVB=m CONFIG_V4L_PLATFORM_DRIVERS=y -CONFIG_VIDEO_BCM2835=n -CONFIG_VIDEO_BCM2835_MMAL=n CONFIG_RADIO_SI470X=y CONFIG_USB_SI470X=m CONFIG_I2C_SI470X=m @@ -892,8 +841,6 @@ CONFIG_SND_VIRMIDI=m CONFIG_SND_MTPAV=m CONFIG_SND_SERIAL_U16550=m CONFIG_SND_MPU401=m -CONFIG_SND_ARM=n -CONFIG_SND_BCM2835=n CONFIG_SND_USB_AUDIO=m CONFIG_SND_USB_UA101=m CONFIG_SND_USB_CAIAQ=m @@ -916,7 +863,10 @@ CONFIG_SND_BCM2708_SOC_ADAU1977_ADC=m CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD=m CONFIG_SND_DIGIDAC1_SOUNDCARD=m CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO=m +CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC=m +CONFIG_SND_PISOUND=m CONFIG_SND_SOC_ADAU1701=m +CONFIG_SND_SOC_AK4554=m CONFIG_SND_SOC_WM8804_I2C=m CONFIG_SND_SIMPLE_CARD=m CONFIG_SOUND_PRIME=m @@ -979,8 +929,6 @@ CONFIG_USB_HIDDEV=y CONFIG_USB=y CONFIG_USB_ANNOUNCE_NEW_DEVICES=y CONFIG_USB_MON=m -CONFIG_USB_DWCOTG=n -CONFIG_USB_DWC2=y CONFIG_USB_PRINTER=m CONFIG_USB_STORAGE=y CONFIG_USB_STORAGE_REALTEK=m @@ -1001,6 +949,7 @@ CONFIG_USB_MICROTEK=m CONFIG_USBIP_CORE=m CONFIG_USBIP_VHCI_HCD=m CONFIG_USBIP_HOST=m +CONFIG_USB_DWC2=y CONFIG_USB_SERIAL=m CONFIG_USB_SERIAL_GENERIC=y CONFIG_USB_SERIAL_AIRCABLE=m @@ -1096,6 +1045,7 @@ CONFIG_LEDS_TRIGGER_INPUT=y CONFIG_LEDS_TRIGGER_PANIC=y CONFIG_RTC_CLASS=y # CONFIG_RTC_HCTOSYS is not set +CONFIG_RTC_DRV_ABX80X=m CONFIG_RTC_DRV_DS1307=m CONFIG_RTC_DRV_DS1374=m CONFIG_RTC_DRV_DS1672=m @@ -1103,7 +1053,6 @@ CONFIG_RTC_DRV_MAX6900=m CONFIG_RTC_DRV_RS5C372=m CONFIG_RTC_DRV_ISL1208=m CONFIG_RTC_DRV_ISL12022=m -CONFIG_RTC_DRV_ISL12057=m CONFIG_RTC_DRV_X1205=m CONFIG_RTC_DRV_PCF8523=m CONFIG_RTC_DRV_PCF8563=m @@ -1137,7 +1086,6 @@ CONFIG_STAGING=y CONFIG_PRISM2_USB=m CONFIG_R8712U=m CONFIG_R8188EU=m -CONFIG_R8723AU=m CONFIG_VT6656=m CONFIG_SPEAKUP=m CONFIG_SPEAKUP_SYNTH_SOFT=m @@ -1153,6 +1101,7 @@ CONFIG_FB_TFT_BD663474=m CONFIG_FB_TFT_HX8340BN=m CONFIG_FB_TFT_HX8347D=m CONFIG_FB_TFT_HX8353D=m +CONFIG_FB_TFT_HX8357D=m CONFIG_FB_TFT_ILI9163=m CONFIG_FB_TFT_ILI9320=m CONFIG_FB_TFT_ILI9325=m @@ -1176,6 +1125,7 @@ CONFIG_FB_TFT_UPD161704=m CONFIG_FB_TFT_WATTEROTT=m CONFIG_FB_FLEX=m CONFIG_FB_TFT_FBTFT_DEVICE=m +# CONFIG_BCM2708_VCHIQ is not set CONFIG_MAILBOX=y CONFIG_BCM2835_MBOX=y # CONFIG_IOMMU_SUPPORT is not set @@ -1189,6 +1139,7 @@ CONFIG_IIO_KFIFO_BUF=m CONFIG_MCP320X=m CONFIG_MCP3422=m CONFIG_DHT11=m +CONFIG_HTU21=m CONFIG_PWM_BCM2835=m CONFIG_PWM_PCA9685=m CONFIG_RASPBERRYPI_FIRMWARE=y @@ -1309,6 +1260,7 @@ CONFIG_BOOT_PRINTK_DELAY=y CONFIG_DEBUG_MEMORY_INIT=y CONFIG_DETECT_HUNG_TASK=y CONFIG_TIMER_STATS=y +CONFIG_LATENCYTOP=y CONFIG_IRQSOFF_TRACER=y CONFIG_SCHED_TRACER=y CONFIG_STACK_TRACER=y @@ -1331,4 +1283,3 @@ CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_ARM64_CRYPTO=y CONFIG_CRC_ITU_T=y CONFIG_LIBCRC32C=y -CONFIG_BCM2835_VCHIQ=n From 6d08a630ee3d0f12214ebc127b923e7b45143d5b Mon Sep 17 00:00:00 2001 From: Michael Zoran Date: Thu, 12 Jan 2017 19:10:07 -0800 Subject: [PATCH 102/165] ARM64: Enable HDMI audio and vc04_services in bcmrpi3_defconfig Signed-off-by: Michael Zoran --- arch/arm64/configs/bcmrpi3_defconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/configs/bcmrpi3_defconfig b/arch/arm64/configs/bcmrpi3_defconfig index c7e891d72969a388d9b135a36dbfc9c9cb609bf8..4b90f9b64abe9f089ba56b13d5a00de33343bfb9 100644 --- a/arch/arm64/configs/bcmrpi3_defconfig +++ b/arch/arm64/configs/bcmrpi3_defconfig @@ -841,6 +841,7 @@ CONFIG_SND_VIRMIDI=m CONFIG_SND_MTPAV=m CONFIG_SND_SERIAL_U16550=m CONFIG_SND_MPU401=m +CONFIG_SND_BCM2835=m CONFIG_SND_USB_AUDIO=m CONFIG_SND_USB_UA101=m CONFIG_SND_USB_CAIAQ=m @@ -1125,7 +1126,6 @@ CONFIG_FB_TFT_UPD161704=m CONFIG_FB_TFT_WATTEROTT=m CONFIG_FB_FLEX=m CONFIG_FB_TFT_FBTFT_DEVICE=m -# CONFIG_BCM2708_VCHIQ is not set CONFIG_MAILBOX=y CONFIG_BCM2835_MBOX=y # CONFIG_IOMMU_SUPPORT is not set From d53026029509dbe88b1b77064fbeb5d4a2537a28 Mon Sep 17 00:00:00 2001 From: Michael Zoran Date: Thu, 12 Jan 2017 19:14:03 -0800 Subject: [PATCH 103/165] ARM64: Run bcmrpi3_defconfig through savedefconfig. Signed-off-by: Michael Zoran --- arch/arm64/configs/bcmrpi3_defconfig | 5 ----- 1 file changed, 5 deletions(-) diff --git a/arch/arm64/configs/bcmrpi3_defconfig b/arch/arm64/configs/bcmrpi3_defconfig index 4b90f9b64abe9f089ba56b13d5a00de33343bfb9..dac962ca1634662ce7d966f1ffb53b5bfa27c506 100644 --- a/arch/arm64/configs/bcmrpi3_defconfig +++ b/arch/arm64/configs/bcmrpi3_defconfig @@ -113,8 +113,6 @@ CONFIG_NF_CONNTRACK=m CONFIG_NF_CONNTRACK_ZONES=y CONFIG_NF_CONNTRACK_EVENTS=y CONFIG_NF_CONNTRACK_TIMESTAMP=y -CONFIG_NF_CT_PROTO_DCCP=m -CONFIG_NF_CT_PROTO_UDPLITE=m CONFIG_NF_CONNTRACK_AMANDA=m CONFIG_NF_CONNTRACK_FTP=m CONFIG_NF_CONNTRACK_H323=m @@ -177,7 +175,6 @@ CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m CONFIG_NETFILTER_XT_MATCH_REALM=m CONFIG_NETFILTER_XT_MATCH_RECENT=m -CONFIG_NETFILTER_XT_MATCH_SOCKET=m CONFIG_NETFILTER_XT_MATCH_STATE=m CONFIG_NETFILTER_XT_MATCH_STATISTIC=m CONFIG_NETFILTER_XT_MATCH_STRING=m @@ -578,7 +575,6 @@ CONFIG_GAMEPORT_L4=m # CONFIG_BCM2835_DEVGPIOMEM is not set # CONFIG_BCM2835_SMI_DEV is not set # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y # CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set CONFIG_SERIAL_8250_CONSOLE=y @@ -1095,7 +1091,6 @@ CONFIG_LIRC_STAGING=y CONFIG_LIRC_IMON=m CONFIG_LIRC_RPI=m CONFIG_LIRC_SASEM=m -CONFIG_LIRC_SERIAL=m CONFIG_FB_TFT=m CONFIG_FB_TFT_AGM1264K_FL=m CONFIG_FB_TFT_BD663474=m From bf7dcc1e405a45a9fff42eccb14725ce6f7f1a5b Mon Sep 17 00:00:00 2001 From: Electron752 Date: Sat, 14 Jan 2017 02:54:26 -0800 Subject: [PATCH 104/165] ARM64: Enable Kernel Address Space Randomization (#1792) Randomization allows the mapping between virtual addresses and physical address to be different on each boot. This makes it more difficult to exploit security vulnerabilities that require knowledge of fixed hardware addresses. The firmware generates a 8 byte random number during bootup and stores it in the device tree under chosen/kaslr-seed. This number is used to randomize the address mapping. This change enables this feature in the build configuration for ARM64. Signed-off-by: Michael Zoran --- arch/arm64/configs/bcmrpi3_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/configs/bcmrpi3_defconfig b/arch/arm64/configs/bcmrpi3_defconfig index dac962ca1634662ce7d966f1ffb53b5bfa27c506..aae33b4b3c3e736ea7cd3ca242158ad6ba558aff 100644 --- a/arch/arm64/configs/bcmrpi3_defconfig +++ b/arch/arm64/configs/bcmrpi3_defconfig @@ -53,6 +53,7 @@ CONFIG_ARMV8_DEPRECATED=y CONFIG_SWP_EMULATION=y CONFIG_CP15_BARRIER_EMULATION=y CONFIG_SETEND_EMULATION=y +CONFIG_RANDOMIZE_BASE=y CONFIG_CMDLINE="console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait" CONFIG_BINFMT_MISC=y CONFIG_COMPAT=y From f887a82633699721d6bf9b19e321ee5b8afccee3 Mon Sep 17 00:00:00 2001 From: Michael Zoran Date: Sun, 15 Jan 2017 07:31:59 -0800 Subject: [PATCH 105/165] ARM64: Enable RTL8187/RTL8192CU wifi in build config These drivers build now, so they can be enabled back in the build configuration just like they are for 32 bit. Signed-off-by: Michael Zoran --- arch/arm64/configs/bcmrpi3_defconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/configs/bcmrpi3_defconfig b/arch/arm64/configs/bcmrpi3_defconfig index aae33b4b3c3e736ea7cd3ca242158ad6ba558aff..b7d762df19b85e369a32cd823dfd062145bdefa7 100644 --- a/arch/arm64/configs/bcmrpi3_defconfig +++ b/arch/arm64/configs/bcmrpi3_defconfig @@ -528,6 +528,8 @@ CONFIG_RT2800USB_RT3573=y CONFIG_RT2800USB_RT53XX=y CONFIG_RT2800USB_RT55XX=y CONFIG_RT2800USB_UNKNOWN=y +CONFIG_RTL8187=m +CONFIG_RTL8192CU=m CONFIG_USB_ZD1201=m CONFIG_ZD1211RW=m CONFIG_MAC80211_HWSIM=m From 763f1f03048de2c892e60be3c36142386744eba9 Mon Sep 17 00:00:00 2001 From: Michael Zoran Date: Sat, 14 Jan 2017 21:33:51 -0800 Subject: [PATCH 106/165] ARM64/DWC_OTG: Port dwc_otg driver to ARM64 In ARM64, the FIQ mechanism used by this driver is not current implemented. As a workaround, reqular IRQ is used instead of FIQ. In a separate change, the IRQ-CPU mapping is round robined on ARM64 to increase concurrency and allow multiple interrupts to be serviced at a time. This reduces the need for FIQ. Tests Run: This mechanism is most likely to break when multiple USB devices are attached at the same time. So the system was tested under stress. Devices: 1. USB Speakers playing back a FLAC audio through VLC at 96KHz.(Higher then typically, but supported on my speakers). 2. sftp transferring large files through the buildin ethernet connection which is connected through USB. 3. Keyboard and mouse attached and being used. Although I do occasionally hear some glitches, the music seems to play quite well. Signed-off-by: Michael Zoran --- drivers/usb/host/dwc_otg/Makefile | 3 ++ drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c | 17 +++++++ drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.h | 24 ++++++++++ drivers/usb/host/dwc_otg/dwc_otg_hcd.c | 4 ++ drivers/usb/host/dwc_otg/dwc_otg_hcd_if.h | 4 ++ drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c | 3 +- drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c | 72 ++++++++++++++++++++++++++++ drivers/usb/host/dwc_otg/dwc_otg_os_dep.h | 2 + 8 files changed, 128 insertions(+), 1 deletion(-) diff --git a/drivers/usb/host/dwc_otg/Makefile b/drivers/usb/host/dwc_otg/Makefile index e7bdd12015fee1727a7956ae3e3b2786e88892c1..4872b8113b68bc9087cf5e128657c580f41680b0 100644 --- a/drivers/usb/host/dwc_otg/Makefile +++ b/drivers/usb/host/dwc_otg/Makefile @@ -37,7 +37,10 @@ dwc_otg-objs += dwc_otg_pcd_linux.o dwc_otg_pcd.o dwc_otg_pcd_intr.o dwc_otg-objs += dwc_otg_hcd.o dwc_otg_hcd_linux.o dwc_otg_hcd_intr.o dwc_otg_hcd_queue.o dwc_otg_hcd_ddma.o dwc_otg-objs += dwc_otg_adp.o dwc_otg-objs += dwc_otg_fiq_fsm.o +ifneq ($(CONFIG_ARM64),y) dwc_otg-objs += dwc_otg_fiq_stub.o +endif + ifneq ($(CFI),) dwc_otg-objs += dwc_otg_cfi.o endif diff --git a/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c b/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c index 13047c08fb71cc6e44c66096720d4654d3f9e4e1..9304279592cb5b388086ef91cb52f1e9f94868ce 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c @@ -74,6 +74,21 @@ void notrace _fiq_print(enum fiq_debug_level dbg_lvl, volatile struct fiq_state } } + +#ifdef CONFIG_ARM64 + +inline void fiq_fsm_spin_lock(fiq_lock_t *lock) +{ + spin_lock((spinlock_t *)lock); +} + +inline void fiq_fsm_spin_unlock(fiq_lock_t *lock) +{ + spin_unlock((spinlock_t *)lock); +} + +#else + /** * fiq_fsm_spin_lock() - ARMv6+ bare bones spinlock * Must be called with local interrupts and FIQ disabled. @@ -122,6 +137,8 @@ inline void fiq_fsm_spin_unlock(fiq_lock_t *lock) inline void fiq_fsm_spin_unlock(fiq_lock_t *lock) { } #endif +#endif + /** * fiq_fsm_restart_channel() - Poke channel enable bit for a split transaction * @channel: channel to re-enable diff --git a/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.h b/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.h index f9fddfbcffb37f32c808fd78f222b676378398b1..0a1ddf3f89f45ca75b8880722fbc22cbdc9f4a2f 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.h +++ b/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.h @@ -127,6 +127,12 @@ enum fiq_debug_level { FIQDBG_PORTHUB = (1 << 3), }; +#ifdef CONFIG_ARM64 + +typedef spinlock_t fiq_lock_t; + +#else + typedef struct { union { uint32_t slock; @@ -137,6 +143,8 @@ typedef struct { }; } fiq_lock_t; +#endif + struct fiq_state; extern void _fiq_print (enum fiq_debug_level dbg_lvl, volatile struct fiq_state *state, char *fmt, ...); @@ -355,6 +363,22 @@ struct fiq_state { struct fiq_channel_state channel[0]; }; +#ifdef CONFIG_ARM64 + +#ifdef local_fiq_enable +#undef local_fiq_enable +#endif + +#ifdef local_fiq_disable +#undef local_fiq_disable +#endif + +extern void local_fiq_enable(void); + +extern void local_fiq_disable(void); + +#endif + extern void fiq_fsm_spin_lock(fiq_lock_t *lock); extern void fiq_fsm_spin_unlock(fiq_lock_t *lock); diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c index 027414bb2bf9fc3f3652407724187f3c6dc5ff68..0eb335f4bc8ec30fa68f830fc3e382330302686e 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c @@ -1021,6 +1021,10 @@ int dwc_otg_hcd_init(dwc_otg_hcd_t * hcd, dwc_otg_core_if_t * core_if) } DWC_MEMSET(hcd->fiq_state, 0, (sizeof(struct fiq_state) + (sizeof(struct fiq_channel_state) * num_channels))); +#ifdef CONFIG_ARM64 + spin_lock_init(&hcd->fiq_state->lock); +#endif + for (i = 0; i < num_channels; i++) { hcd->fiq_state->channel[i].fsm = FIQ_PASSTHROUGH; } diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_if.h b/drivers/usb/host/dwc_otg/dwc_otg_hcd_if.h index fb57db09378f4ab95d57cb58aa570a915ccb61c3..a384db5e7ac219936ace65e5616e68c8a7b59a20 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_if.h +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_if.h @@ -116,7 +116,11 @@ extern int32_t dwc_otg_hcd_handle_intr(dwc_otg_hcd_t * dwc_otg_hcd); /** This function is used to handle the fast interrupt * */ +#ifdef CONFIG_ARM64 +extern void dwc_otg_hcd_handle_fiq(void); +#else extern void __attribute__ ((naked)) dwc_otg_hcd_handle_fiq(void); +#endif /** * Returns private data set by diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c index e6b38ac330b72152204c2a6879c20f0ce02ac2e5..b2618c15d1f1f0b062d4146672de5ae50e9e2d33 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c @@ -36,8 +36,9 @@ #include "dwc_otg_regs.h" #include +#ifdef CONFIG_ARM #include - +#endif extern bool microframe_schedule; diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c index 96ec6338bbcb8ebe69a233d21a4b9d244ff6fe95..992269d61ecf48126379a38e528f719009ee1d75 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c @@ -51,7 +51,9 @@ #include #include #include +#ifdef CONFIG_ARM #include +#endif #include #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,35) #include <../drivers/usb/core/hcd.h> @@ -71,6 +73,13 @@ #include "dwc_otg_driver.h" #include "dwc_otg_hcd.h" +#ifndef __virt_to_bus +#define __virt_to_bus __virt_to_phys +#define __bus_to_virt __phys_to_virt +#define __pfn_to_bus(x) __pfn_to_phys(x) +#define __bus_to_pfn(x) __phys_to_pfn(x) +#endif + extern unsigned char _dwc_otg_fiq_stub, _dwc_otg_fiq_stub_end; /** @@ -395,14 +404,49 @@ static struct dwc_otg_hcd_function_ops hcd_fops = { .get_b_hnp_enable = _get_b_hnp_enable, }; +#ifdef CONFIG_ARM64 + +static int simfiq_irq = -1; + +void local_fiq_enable(void) +{ + if (simfiq_irq >= 0) + enable_irq(simfiq_irq); +} + +void local_fiq_disable(void) +{ + if (simfiq_irq >= 0) + disable_irq(simfiq_irq); +} + +irqreturn_t fiq_irq_handler(int irq, void *dev_id) +{ + dwc_otg_hcd_t *dwc_otg_hcd = (dwc_otg_hcd_t *)dev_id; + + if (fiq_fsm_enable) + dwc_otg_fiq_fsm(dwc_otg_hcd->fiq_state, dwc_otg_hcd->core_if->core_params->host_channels); + else + dwc_otg_fiq_nop(dwc_otg_hcd->fiq_state); + + return IRQ_HANDLED; +} + +#else static struct fiq_handler fh = { .name = "usb_fiq", }; +#endif + static void hcd_init_fiq(void *cookie) { dwc_otg_device_t *otg_dev = cookie; dwc_otg_hcd_t *dwc_otg_hcd = otg_dev->hcd; +#ifdef CONFIG_ARM64 + int retval = 0; + int irq; +#else struct pt_regs regs; int irq; @@ -430,6 +474,7 @@ static void hcd_init_fiq(void *cookie) // __show_regs(®s); set_fiq_regs(®s); +#endif //Set the mphi periph to the required registers dwc_otg_hcd->fiq_state->mphi_regs.base = otg_dev->os_dep.mphi_base; @@ -448,6 +493,23 @@ static void hcd_init_fiq(void *cookie) DWC_WARN("MPHI periph has NOT been enabled"); #endif // Enable FIQ interrupt from USB peripheral +#ifdef CONFIG_ARM64 + irq = platform_get_irq(otg_dev->os_dep.platformdev, 1); + + if (irq < 0) { + DWC_ERROR("Can't get SIM-FIQ irq"); + return; + } + + retval = request_irq(irq, fiq_irq_handler, 0, "dwc_otg_sim-fiq", dwc_otg_hcd); + + if (retval < 0) { + DWC_ERROR("Unable to request SIM-FIQ irq\n"); + return; + } + + simfiq_irq = irq; +#else #ifdef CONFIG_MULTI_IRQ_HANDLER irq = platform_get_irq(otg_dev->os_dep.platformdev, 1); #else @@ -459,6 +521,8 @@ static void hcd_init_fiq(void *cookie) } enable_fiq(irq); local_fiq_enable(); +#endif + } /** @@ -521,6 +585,13 @@ int hcd_init(dwc_bus_dev_t *_dev) otg_dev->hcd = dwc_otg_hcd; otg_dev->hcd->otg_dev = otg_dev; +#ifdef CONFIG_ARM64 + if (dwc_otg_hcd_init(dwc_otg_hcd, otg_dev->core_if)) + goto error2; + + if (fiq_enable) + hcd_init_fiq(otg_dev); +#else if (dwc_otg_hcd_init(dwc_otg_hcd, otg_dev->core_if)) { goto error2; } @@ -533,6 +604,7 @@ int hcd_init(dwc_bus_dev_t *_dev) smp_call_function_single(0, hcd_init_fiq, otg_dev, 1); } } +#endif hcd->self.otg_port = dwc_otg_hcd_otg_port(dwc_otg_hcd); #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33) //don't support for LM(with 2.6.20.1 kernel) diff --git a/drivers/usb/host/dwc_otg/dwc_otg_os_dep.h b/drivers/usb/host/dwc_otg/dwc_otg_os_dep.h index 6b2c7d0c93f36a63863ff4b0ecc1f3eab77e058b..d7b700ff17821ad1944e36721fe6b2db85c1b9e2 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_os_dep.h +++ b/drivers/usb/host/dwc_otg/dwc_otg_os_dep.h @@ -76,8 +76,10 @@ #ifdef PLATFORM_INTERFACE #include +#ifdef CONFIG_ARM #include #endif +#endif /** The OS page size */ #define DWC_OS_PAGE_SIZE PAGE_SIZE From 407532599b884cc5524844efe873f76e291183a9 Mon Sep 17 00:00:00 2001 From: Michael Zoran Date: Sat, 14 Jan 2017 21:43:57 -0800 Subject: [PATCH 107/165] ARM64: Round-Robin dispatch IRQs between CPUs. IRQ-CPU mapping is round robined on ARM64 to increase concurrency and allow multiple interrupts to be serviced at a time. This reduces the need for FIQ. Signed-off-by: Michael Zoran --- drivers/irqchip/irq-bcm2835.c | 15 ++++++++++++++- drivers/irqchip/irq-bcm2836.c | 21 +++++++++++++++++++++ 2 files changed, 35 insertions(+), 1 deletion(-) diff --git a/drivers/irqchip/irq-bcm2835.c b/drivers/irqchip/irq-bcm2835.c index 8ed457fd74bd23bee27b64a2c9e3828ce0e4fb87..a035e1ceacc0494fa293e6811ff8f7e3ea05e362 100644 --- a/drivers/irqchip/irq-bcm2835.c +++ b/drivers/irqchip/irq-bcm2835.c @@ -168,10 +168,23 @@ static void armctrl_unmask_irq(struct irq_data *d) } } +#ifdef CONFIG_ARM64 +void bcm2836_arm_irqchip_spin_gpu_irq(void); + +static void armctrl_ack_irq(struct irq_data *d) +{ + bcm2836_arm_irqchip_spin_gpu_irq(); +} + +#endif + static struct irq_chip armctrl_chip = { .name = "ARMCTRL-level", .irq_mask = armctrl_mask_irq, - .irq_unmask = armctrl_unmask_irq + .irq_unmask = armctrl_unmask_irq, +#ifdef CONFIG_ARM64 + .irq_ack = armctrl_ack_irq +#endif }; static int armctrl_xlate(struct irq_domain *d, struct device_node *ctrlr, diff --git a/drivers/irqchip/irq-bcm2836.c b/drivers/irqchip/irq-bcm2836.c index c4e151451cf8c8ebde5225515eac2786d6f61d46..9a7ee04ee0d9b7aa734cf3159ed59c19a338de0d 100644 --- a/drivers/irqchip/irq-bcm2836.c +++ b/drivers/irqchip/irq-bcm2836.c @@ -145,6 +145,27 @@ static void bcm2836_arm_irqchip_unmask_gpu_irq(struct irq_data *d) { } +#ifdef CONFIG_ARM64 + +void bcm2836_arm_irqchip_spin_gpu_irq(void) +{ + u32 i; + void __iomem *gpurouting = (intc.base + LOCAL_GPU_ROUTING); + u32 routing_val = readl(gpurouting); + + for (i = 1; i <= 3; i++) { + u32 new_routing_val = (routing_val + i) & 3; + + if (cpu_active(new_routing_val)) { + writel(new_routing_val, gpurouting); + return; + } + } +} +EXPORT_SYMBOL(bcm2836_arm_irqchip_spin_gpu_irq); + +#endif + static struct irq_chip bcm2836_arm_irqchip_gpu = { .name = "bcm2836-gpu", .irq_mask = bcm2836_arm_irqchip_mask_gpu_irq, From ee5f155c70f0b5cf2582896f7a728229a082b2b2 Mon Sep 17 00:00:00 2001 From: Michael Zoran Date: Sat, 14 Jan 2017 21:45:03 -0800 Subject: [PATCH 108/165] ARM64: Enable DWC_OTG Driver In ARM64 Build Config(bcmrpi3_defconfig) Signed-off-by: Michael Zoran --- arch/arm64/configs/bcmrpi3_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/configs/bcmrpi3_defconfig b/arch/arm64/configs/bcmrpi3_defconfig index b7d762df19b85e369a32cd823dfd062145bdefa7..4d85c231c5ea0244e1b05fb4a5e3c8fd3e651ddf 100644 --- a/arch/arm64/configs/bcmrpi3_defconfig +++ b/arch/arm64/configs/bcmrpi3_defconfig @@ -929,6 +929,7 @@ CONFIG_USB_HIDDEV=y CONFIG_USB=y CONFIG_USB_ANNOUNCE_NEW_DEVICES=y CONFIG_USB_MON=m +CONFIG_USB_DWCOTG=y CONFIG_USB_PRINTER=m CONFIG_USB_STORAGE=y CONFIG_USB_STORAGE_REALTEK=m From 2c94c421e3c873bc0addf7a67b5ff0eaeae84e9d Mon Sep 17 00:00:00 2001 From: Michael Zoran Date: Sat, 11 Feb 2017 01:18:31 -0800 Subject: [PATCH 109/165] ARM64: Force hardware emulation of deprecated instructions. --- arch/arm64/kernel/armv8_deprecated.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/kernel/armv8_deprecated.c b/arch/arm64/kernel/armv8_deprecated.c index f0e6d717885b1fcf3b22f64c10c38f19c25f809d..0cb830d30fb6d2bd26ab572efe893649c7a28d3c 100644 --- a/arch/arm64/kernel/armv8_deprecated.c +++ b/arch/arm64/kernel/armv8_deprecated.c @@ -183,10 +183,15 @@ static void __init register_insn_emulation(struct insn_emulation_ops *ops) switch (ops->status) { case INSN_DEPRECATED: +#if 0 insn->current_mode = INSN_EMULATE; /* Disable the HW mode if it was turned on at early boot time */ run_all_cpu_set_hw_mode(insn, false); +#else + insn->current_mode = INSN_HW; + run_all_cpu_set_hw_mode(insn, true); insn->max = INSN_HW; +#endif break; case INSN_OBSOLETE: insn->current_mode = INSN_UNDEF; From d1316547f577d065c35731dc77ea0ce490dbf9ff Mon Sep 17 00:00:00 2001 From: Khem Raj Date: Fri, 10 Feb 2017 17:57:08 -0800 Subject: [PATCH 110/165] build/arm64: Add rules for .dtbo files for dts overlays We now create overlays as .dtbo files. Signed-off-by: Khem Raj --- arch/arm64/Makefile | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index b9a4a934ca057623e0ea436fd9b2c7c0f675fced..54e3c38d6fd877827541cdc798de035cf439b17f 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -119,6 +119,9 @@ zinstall install: %.dtb: scripts $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@ +%.dtbo: | scripts + $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@ + PHONY += dtbs dtbs_install dtbs: prepare scripts From 4a20e8d76e9a40c89826b5c941d262bf8b2b5b72 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Mon, 9 May 2016 17:28:18 -0700 Subject: [PATCH 111/165] clk: bcm2835: Mark GPIO clocks enabled at boot as critical. These divide off of PLLD_PER and are used for the ethernet and wifi PHYs source PLLs. Neither of them is currently represented by a phy device that would grab the clock for us. This keeps other drivers from killing the networking PHYs when they disable their own clocks and trigger PLLD_PER's refcount going to 0. v2: Skip marking as critical if they aren't on at boot. Signed-off-by: Eric Anholt --- drivers/clk/bcm/clk-bcm2835.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c index 39f72da6ba1f6ec6ec41d5dc1bf46344aab008da..fe3298b54cdfb96bd90fb4f39e13921d2e1d4356 100644 --- a/drivers/clk/bcm/clk-bcm2835.c +++ b/drivers/clk/bcm/clk-bcm2835.c @@ -1461,6 +1461,15 @@ static struct clk_hw *bcm2835_register_clock(struct bcm2835_cprman *cprman, init.flags = data->flags | CLK_IGNORE_UNUSED; /* + * Some GPIO clocks for ethernet/wifi PLLs are marked as + * critical (since some platforms use them), but if the + * firmware didn't have them turned on then they clearly + * aren't actually critical. + */ + if ((cprman_read(cprman, data->ctl_reg) & CM_ENABLE) == 0) + init.flags &= ~CLK_IS_CRITICAL; + + /* * Pass the CLK_SET_RATE_PARENT flag if we are allowed to propagate * rate changes on at least of the parents. */ From fee1a777a468454a1a0c17e9a82a343e85d82d51 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Tue, 24 Feb 2015 13:40:50 +0000 Subject: [PATCH 112/165] pinctrl-bcm2835: Fix interrupt handling for GPIOs 28-31 and 46-53 Contrary to the documentation, the BCM2835 GPIO controller actually has four interrupt lines - one each for the three IRQ groups and one common. Rather confusingly, the GPIO interrupt groups don't correspond directly with the GPIO control banks. Instead, GPIOs 0-27 generate IRQ GPIO0, 28-45 GPIO1 and 46-53 GPIO2. Awkwardly, the GPIOS for IRQ GPIO1 straddle two 32-entry GPIO banks, so it is cleaner to split out a function to process the interrupts for a single GPIO bank. This bug has only just been observed because GPIOs above 27 can only be accessed on an old Raspberry Pi with the optional P5 header fitted, where the pins are often used for I2S instead. --- drivers/pinctrl/bcm/pinctrl-bcm2835.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pinctrl/bcm/pinctrl-bcm2835.c b/drivers/pinctrl/bcm/pinctrl-bcm2835.c index 6351fe7f8e314ac5ebb102dd20847b383fd5b857..28745af5aadf3cb91fa7ff39118385c393e2d1d4 100644 --- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c +++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c @@ -1109,6 +1109,7 @@ static struct platform_driver bcm2835_pinctrl_driver = { .remove = bcm2835_pinctrl_remove, .driver = { .name = MODULE_NAME, + .owner = THIS_MODULE, .of_match_table = bcm2835_pinctrl_match, }, }; From c7ce6e634f4a0d1b3d0d1d166713180902839087 Mon Sep 17 00:00:00 2001 From: Dave Stevenson Date: Tue, 7 Mar 2017 12:18:20 +0000 Subject: [PATCH 113/165] BCM270X_DT: Invert Pi3 power LED to match fw change Firmware expgpio driver reworked due to complaint over hotplug detect. Requires power LED to change sense as firmware is no longer inverting the read value. Signed-off-by: Dave Stevenson --- arch/arm/boot/dts/bcm2710-rpi-3-b.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/bcm2710-rpi-3-b.dts b/arch/arm/boot/dts/bcm2710-rpi-3-b.dts index 616cfd5c7094596b497101e8feca25e25e77c3e8..9f001bccb8261563dcddd8dec94b056b55308c6d 100644 --- a/arch/arm/boot/dts/bcm2710-rpi-3-b.dts +++ b/arch/arm/boot/dts/bcm2710-rpi-3-b.dts @@ -175,7 +175,7 @@ pwr_led: pwr { label = "led1"; linux,default-trigger = "input"; - gpios = <&expgpio 7 GPIO_ACTIVE_LOW>; + gpios = <&expgpio 7 0>; }; }; From 75f8b9a38b6624dde4b999cbc83bbe19130739a4 Mon Sep 17 00:00:00 2001 From: Dave Stevenson Date: Tue, 14 Mar 2017 14:23:06 +0000 Subject: [PATCH 114/165] bcm2835-gpio-exp: Copy/paste error adding base twice brcmexp_gpio_set was adding gpio->gc.base to the offset twice, so passing an invalid number to the mailbox service. The firmware treated it modulo-8 anyway, but was logging an assert every time. Signed-off-by: Dave Stevenson --- drivers/gpio/gpio-bcm-exp.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/gpio/gpio-bcm-exp.c b/drivers/gpio/gpio-bcm-exp.c index 681a91492d4c33bdfd42416e069218e8611cc4d9..d68adafaee4ad406f45f4ff0d6b7c1ad5d10e330 100644 --- a/drivers/gpio/gpio-bcm-exp.c +++ b/drivers/gpio/gpio-bcm-exp.c @@ -165,8 +165,6 @@ static void brcmexp_gpio_set(struct gpio_chip *gc, unsigned int off, int val) gpio = container_of(gc, struct brcmexp_gpio, gc); - off += gpio->gc.base; - set.gpio = off + gpio->gc.base; /* GPIO to update */ set.state = val; /* Output state */ From d24c80387cf67b7ffcbcc639565e96ce7c356463 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Fri, 17 Mar 2017 13:40:41 +0000 Subject: [PATCH 115/165] config: disable MMC driver temporarily for now. Currently causes a breakage to sdhost driver. However when MMC is disabled Pi3 wifi will not work --- arch/arm/configs/bcm2709_defconfig | 2 -- arch/arm/configs/bcmrpi_defconfig | 2 -- 2 files changed, 4 deletions(-) diff --git a/arch/arm/configs/bcm2709_defconfig b/arch/arm/configs/bcm2709_defconfig index 667755d0d8bcf6dd39fc80e19696a120ea61fe01..b6ef78d6af1b21758d82e8e906ec33b71426ab98 100644 --- a/arch/arm/configs/bcm2709_defconfig +++ b/arch/arm/configs/bcm2709_defconfig @@ -1046,8 +1046,6 @@ CONFIG_USB_XUSBATM=m CONFIG_USB_GADGET=m CONFIG_MMC=y CONFIG_MMC_BLOCK_MINORS=32 -CONFIG_MMC_BCM2835=y -CONFIG_MMC_BCM2835_DMA=y CONFIG_MMC_BCM2835_SDHOST=y CONFIG_MMC_SDHCI=y CONFIG_MMC_SDHCI_PLTFM=y diff --git a/arch/arm/configs/bcmrpi_defconfig b/arch/arm/configs/bcmrpi_defconfig index 046f3e8757ef0f794c802171690528d31fee9deb..f2e0a58a96c8550f110c5940bf65f4d022cc4548 100644 --- a/arch/arm/configs/bcmrpi_defconfig +++ b/arch/arm/configs/bcmrpi_defconfig @@ -1053,8 +1053,6 @@ CONFIG_USB_G_HID=m CONFIG_USB_G_WEBCAM=m CONFIG_MMC=y CONFIG_MMC_BLOCK_MINORS=32 -CONFIG_MMC_BCM2835=y -CONFIG_MMC_BCM2835_DMA=y CONFIG_MMC_BCM2835_SDHOST=y CONFIG_MMC_SDHCI=y CONFIG_MMC_SDHCI_PLTFM=y From 96f2d1a55e0bdb62f286b18e8f5e461da921babc Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Fri, 17 Mar 2017 12:24:41 +0000 Subject: [PATCH 116/165] config: Make spidev a loadable module spidev isn't required early in the boot process, and not all users need it (spi_bcm2835 is a module), so make it a loadable module. See: https://github.com/raspberrypi/linux/issues/1897 Signed-off-by: Phil Elwell --- arch/arm/configs/bcm2709_defconfig | 2 +- arch/arm/configs/bcmrpi_defconfig | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/configs/bcm2709_defconfig b/arch/arm/configs/bcm2709_defconfig index b6ef78d6af1b21758d82e8e906ec33b71426ab98..8198d4f73e231e49204b344ac296f818a8ae765b 100644 --- a/arch/arm/configs/bcm2709_defconfig +++ b/arch/arm/configs/bcm2709_defconfig @@ -615,7 +615,7 @@ CONFIG_I2C_GPIO=m CONFIG_SPI=y CONFIG_SPI_BCM2835=m CONFIG_SPI_BCM2835AUX=m -CONFIG_SPI_SPIDEV=y +CONFIG_SPI_SPIDEV=m CONFIG_PPS=m CONFIG_PPS_CLIENT_LDISC=m CONFIG_PPS_CLIENT_GPIO=m diff --git a/arch/arm/configs/bcmrpi_defconfig b/arch/arm/configs/bcmrpi_defconfig index f2e0a58a96c8550f110c5940bf65f4d022cc4548..9eb7084f440c8aac0c6257ee678007c23990a8ae 100644 --- a/arch/arm/configs/bcmrpi_defconfig +++ b/arch/arm/configs/bcmrpi_defconfig @@ -611,7 +611,7 @@ CONFIG_I2C_GPIO=m CONFIG_SPI=y CONFIG_SPI_BCM2835=m CONFIG_SPI_BCM2835AUX=m -CONFIG_SPI_SPIDEV=y +CONFIG_SPI_SPIDEV=m CONFIG_PPS=m CONFIG_PPS_CLIENT_LDISC=m CONFIG_PPS_CLIENT_GPIO=m From cff63b8e6aae76ad600b7dc0a46b9f409ebff536 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Thu, 23 Mar 2017 10:06:56 +0000 Subject: [PATCH 117/165] ASoC: Add prompt for ICS43432 codec Without a prompt string, a config setting can't be included in a defconfig. Give CONFIG_SND_SOC_ICS43432 a prompt so that Pi soundcards can use the driver. Signed-off-by: Phil Elwell --- sound/soc/codecs/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 55812b0b884cf4fc4e86680b11fedd11c863db7a..428dc05edbb99f50560b7f89e45501c5e8a0e583 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -550,7 +550,7 @@ config SND_SOC_HDAC_HDMI select HDMI config SND_SOC_ICS43432 - tristate + tristate "InvenSense ICS43432 I2S microphone codec" config SND_SOC_INNO_RK3036 tristate "Inno codec driver for RK3036 SoC" From 38ce30a9437d8a22e0f8fbbcc6770802861a3b0d Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Thu, 23 Mar 2017 16:34:46 +0000 Subject: [PATCH 118/165] bcm2835-aux: Add aux interrupt controller The AUX block has a shared interrupt line with a register indicating which devices have active IRQs. Expose this as a nested interrupt controller to avoid sharing problems. See: https://github.com/raspberrypi/linux/issues/1484 https://github.com/raspberrypi/linux/issues/1573 Signed-off-by: Phil Elwell --- drivers/clk/bcm/clk-bcm2835-aux.c | 120 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 120 insertions(+) diff --git a/drivers/clk/bcm/clk-bcm2835-aux.c b/drivers/clk/bcm/clk-bcm2835-aux.c index bd750cf2238d61489811e7d7bd3b5f9950ed53c8..41e0702fae4692221980b0d02aed1ba652945650 100644 --- a/drivers/clk/bcm/clk-bcm2835-aux.c +++ b/drivers/clk/bcm/clk-bcm2835-aux.c @@ -17,17 +17,107 @@ #include #include #include +#include +#include +#include #include #define BCM2835_AUXIRQ 0x00 #define BCM2835_AUXENB 0x04 +#define BCM2835_AUXIRQ_NUM_IRQS 3 + +#define BCM2835_AUXIRQ_UART_IRQ 0 +#define BCM2835_AUXIRQ_SPI1_IRQ 1 +#define BCM2835_AUXIRQ_SPI2_IRQ 2 + +#define BCM2835_AUXIRQ_UART_MASK 0x01 +#define BCM2835_AUXIRQ_SPI1_MASK 0x02 +#define BCM2835_AUXIRQ_SPI2_MASK 0x04 + +#define BCM2835_AUXIRQ_ALL_MASK \ + (BCM2835_AUXIRQ_UART_MASK | \ + BCM2835_AUXIRQ_SPI1_MASK | \ + BCM2835_AUXIRQ_SPI2_MASK) + +struct auxirq_state { + void __iomem *status; + u32 enables; + struct irq_domain *domain; + struct regmap *local_regmap; +}; + +static struct auxirq_state auxirq __read_mostly; + +static irqreturn_t bcm2835_auxirq_handler(int irq, void *dev_id) +{ + u32 stat = readl_relaxed(auxirq.status); + u32 masked = stat & auxirq.enables; + + if (masked & BCM2835_AUXIRQ_UART_MASK) + generic_handle_irq(irq_linear_revmap(auxirq.domain, + BCM2835_AUXIRQ_UART_IRQ)); + + if (masked & BCM2835_AUXIRQ_SPI1_MASK) + generic_handle_irq(irq_linear_revmap(auxirq.domain, + BCM2835_AUXIRQ_SPI1_IRQ)); + + if (masked & BCM2835_AUXIRQ_SPI2_MASK) + generic_handle_irq(irq_linear_revmap(auxirq.domain, + BCM2835_AUXIRQ_SPI2_IRQ)); + + return (masked & BCM2835_AUXIRQ_ALL_MASK) ? IRQ_HANDLED : IRQ_NONE; +} + +static int bcm2835_auxirq_xlate(struct irq_domain *d, + struct device_node *ctrlr, + const u32 *intspec, unsigned int intsize, + unsigned long *out_hwirq, + unsigned int *out_type) +{ + if (WARN_ON(intsize != 1)) + return -EINVAL; + + if (WARN_ON(intspec[0] >= BCM2835_AUXIRQ_NUM_IRQS)) + return -EINVAL; + + *out_hwirq = intspec[0]; + *out_type = IRQ_TYPE_NONE; + return 0; +} + +static void bcm2835_auxirq_mask(struct irq_data *data) +{ + irq_hw_number_t hwirq = irqd_to_hwirq(data); + + auxirq.enables &= ~(1 << hwirq); +} + +static void bcm2835_auxirq_unmask(struct irq_data *data) +{ + irq_hw_number_t hwirq = irqd_to_hwirq(data); + + auxirq.enables |= (1 << hwirq); +} + +static struct irq_chip bcm2835_auxirq_chip = { + .name = "bcm2835-auxirq", + .irq_mask = bcm2835_auxirq_mask, + .irq_unmask = bcm2835_auxirq_unmask, +}; + +static const struct irq_domain_ops bcm2835_auxirq_ops = { + .xlate = bcm2835_auxirq_xlate//irq_domain_xlate_onecell +}; + static int bcm2835_aux_clk_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; + struct device_node *node = dev->of_node; struct clk_hw_onecell_data *onecell; const char *parent; struct clk *parent_clk; + int parent_irq; struct resource *res; void __iomem *reg, *gate; @@ -41,6 +131,36 @@ static int bcm2835_aux_clk_probe(struct platform_device *pdev) if (IS_ERR(reg)) return PTR_ERR(reg); + parent_irq = irq_of_parse_and_map(node, 0); + if (parent_irq) { + int ret; + int i; + + /* Manage the AUX irq as well */ + auxirq.status = reg + BCM2835_AUXIRQ; + auxirq.domain = irq_domain_add_linear(node, + BCM2835_AUXIRQ_NUM_IRQS, + &bcm2835_auxirq_ops, + NULL); + if (!auxirq.domain) + return -ENXIO; + + for (i = 0; i < BCM2835_AUXIRQ_NUM_IRQS; i++) { + unsigned int irq = irq_create_mapping(auxirq.domain, i); + + if (irq == 0) + return -ENXIO; + + irq_set_chip_and_handler(irq, &bcm2835_auxirq_chip, + handle_level_irq); + } + + ret = devm_request_irq(dev, parent_irq, bcm2835_auxirq_handler, + 0, "bcm2835-auxirq", NULL); + if (ret) + return ret; + } + onecell = devm_kmalloc(dev, sizeof(*onecell) + sizeof(*onecell->hws) * BCM2835_AUX_CLOCK_COUNT, GFP_KERNEL); if (!onecell) From aefd0ad73439c7f093795d1a0c5729dcf55f0bf4 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Thu, 23 Mar 2017 17:08:44 +0000 Subject: [PATCH 119/165] BCM270X_DT: Enable AUX interrupt controller in DT See: https://github.com/raspberrypi/linux/issues/1484 https://github.com/raspberrypi/linux/issues/1573 Signed-off-by: Phil Elwell --- arch/arm/boot/dts/bcm283x.dtsi | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi index 72cb9dc60ca9ad9aa2813972a299c50dcea7cd89..ca47b23ffbcd06063e0fb7072dc8a843b20256e3 100644 --- a/arch/arm/boot/dts/bcm283x.dtsi +++ b/arch/arm/boot/dts/bcm283x.dtsi @@ -403,12 +403,16 @@ #clock-cells = <1>; reg = <0x7e215000 0x8>; clocks = <&clocks BCM2835_CLOCK_VPU>; + interrupts = <1 29>; + interrupt-controller; + #interrupt-cells = <1>; }; uart1: serial@7e215040 { compatible = "brcm,bcm2835-aux-uart"; reg = <0x7e215040 0x40>; - interrupts = <1 29>; + interrupt-parent = <&aux>; + interrupts = <0>; clocks = <&aux BCM2835_AUX_CLOCK_UART>; status = "disabled"; }; @@ -416,7 +420,8 @@ spi1: spi@7e215080 { compatible = "brcm,bcm2835-aux-spi"; reg = <0x7e215080 0x40>; - interrupts = <1 29>; + interrupt-parent = <&aux>; + interrupts = <1>; clocks = <&aux BCM2835_AUX_CLOCK_SPI1>; #address-cells = <1>; #size-cells = <0>; @@ -426,7 +431,8 @@ spi2: spi@7e2150c0 { compatible = "brcm,bcm2835-aux-spi"; reg = <0x7e2150c0 0x40>; - interrupts = <1 29>; + interrupt-parent = <&aux>; + interrupts = <2>; clocks = <&aux BCM2835_AUX_CLOCK_SPI2>; #address-cells = <1>; #size-cells = <0>; From 9483134d159f1a7fa177df11bbb4f1d797c572eb Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Mon, 27 Mar 2017 17:40:45 +0100 Subject: [PATCH 120/165] mkknlimg: Find some more downstream-only strings See: https://github.com/raspberrypi/linux/issues/1920 Signed-off-by: Phil Elwell --- scripts/mkknlimg | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/scripts/mkknlimg b/scripts/mkknlimg index 60206de7fa9a49bd027c635306674a29a568652f..84be2593ec1de8f97b0167ff06b3e05d231c4ba0 100755 --- a/scripts/mkknlimg +++ b/scripts/mkknlimg @@ -68,7 +68,7 @@ if (! -r $kernel_file) my $wanted_strings = { - 'bcm2708_fb' => FLAG_PI, + 'bcm2708_fb' => FLAG_PI | FLAG_270X, 'brcm,bcm2835-mmc' => FLAG_PI, 'brcm,bcm2835-sdhost' => FLAG_PI, 'brcm,bcm2708-pinctrl' => FLAG_PI | FLAG_DTOK, @@ -79,6 +79,7 @@ my $wanted_strings = 'brcm,bcm2836' => FLAG_PI | FLAG_DTOK | FLAG_283X, 'of_cfs_init' => FLAG_DTOK | FLAG_DDTK, 'vc_cma_init' => FLAG_PI | FLAG_270X, + 'vc-mem' => FLAG_PI | FLAG_270X, }; my $res = try_extract($kernel_file, $tmpfile1); From a410a7341c5993a2d7fa70a7608d2a5e51ed7023 Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Fri, 29 Apr 2016 10:32:17 -0700 Subject: [PATCH 121/165] mmc: read mmc alias from device tree To get the SD/MMC host device ID, read the alias from the device tree. This is useful in case a SoC has multipe SD/MMC host controllers while the second controller should logically be the first device (e.g. if the second controller is connected to an internal eMMC). Combined with block device numbering using MMC/SD host device ID, this results in predictable name assignment of the internal eMMC block device. Signed-off-by: Stefan Agner Signed-off-by: Dmitry Torokhov [dianders: rebase + roll in http://crosreview.com/259916] Signed-off-by: Douglas Anderson --- drivers/mmc/core/host.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 3f8c85d5aa094b43666904c7dbbe5e62c9763c19..4dbd0e8e27a496bfbe67d188cf795ecc7c89413c 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -345,15 +345,30 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev) { int err; struct mmc_host *host; + int id; host = kzalloc(sizeof(struct mmc_host) + extra, GFP_KERNEL); if (!host) return NULL; + /* If OF aliases exist, start dynamic assignment after highest */ + id = of_alias_get_highest_id("mmc"); + id = (id < 0) ? 0 : id + 1; + + /* If this devices has OF node, maybe it has an alias */ + if (dev->of_node) { + int of_id = of_alias_get_id(dev->of_node, "mmc"); + + if (of_id < 0) + dev_warn(dev, "/aliases ID not available\n"); + else + id = of_id; + } + /* scanning will be enabled when we're ready */ host->rescan_disable = 1; - err = ida_simple_get(&mmc_host_ida, 0, 0, GFP_KERNEL); + err = ida_simple_get(&mmc_host_ida, id, 0, GFP_KERNEL); if (err < 0) { kfree(host); return NULL; From 3bc30d8fa9cee67d3dc95bba2822c043ede22fff Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Wed, 29 Mar 2017 14:30:42 +0100 Subject: [PATCH 122/165] BCM270X_DT: Add numbered aliases for SD/MMC devices In order to force a specific ID assignment to SD/MMC devices, add numbered aliases to the DT: sdhost -> mmc0, mmc -> mmc1 Signed-off-by: Phil Elwell --- arch/arm/boot/dts/bcm2708-rpi.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/bcm2708-rpi.dtsi b/arch/arm/boot/dts/bcm2708-rpi.dtsi index ef14e9ac6cd2092efb1681682dd2d3c52b8abfd5..693d4c04a36d2a7883cc3d8916bf0efbd6b782b5 100644 --- a/arch/arm/boot/dts/bcm2708-rpi.dtsi +++ b/arch/arm/boot/dts/bcm2708-rpi.dtsi @@ -21,6 +21,7 @@ gpio = &gpio; uart0 = &uart0; sdhost = &sdhost; + mmc0 = &sdhost; i2s = &i2s; spi0 = &spi0; i2c0 = &i2c0; @@ -28,6 +29,7 @@ spi1 = &spi1; spi2 = &spi2; mmc = &mmc; + mmc1 = &mmc; i2c1 = &i2c1; i2c2 = &i2c2; usb = &usb; From 314cc6a4ff0bee2460656e652230c96bb3a2365f Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Wed, 29 Mar 2017 14:28:53 +0100 Subject: [PATCH 123/165] config: Re-enable the bcm2835-mmc driver With the patch to assign mmc device IDs based on DT aliases and appropriate aliases in the rpi DTBs, it is now safe to re-enable the bcm2835-mmc driver. Signed-off-by: Phil Elwell --- arch/arm/configs/bcm2709_defconfig | 1 + arch/arm/configs/bcmrpi_defconfig | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/arm/configs/bcm2709_defconfig b/arch/arm/configs/bcm2709_defconfig index 8198d4f73e231e49204b344ac296f818a8ae765b..8163d3cf93032b78fd90af7335b2d1d046a626ff 100644 --- a/arch/arm/configs/bcm2709_defconfig +++ b/arch/arm/configs/bcm2709_defconfig @@ -1046,6 +1046,7 @@ CONFIG_USB_XUSBATM=m CONFIG_USB_GADGET=m CONFIG_MMC=y CONFIG_MMC_BLOCK_MINORS=32 +CONFIG_MMC_BCM2835=y CONFIG_MMC_BCM2835_SDHOST=y CONFIG_MMC_SDHCI=y CONFIG_MMC_SDHCI_PLTFM=y diff --git a/arch/arm/configs/bcmrpi_defconfig b/arch/arm/configs/bcmrpi_defconfig index 9eb7084f440c8aac0c6257ee678007c23990a8ae..021c38a909e71baa135cbcd4f3fb80fad2151647 100644 --- a/arch/arm/configs/bcmrpi_defconfig +++ b/arch/arm/configs/bcmrpi_defconfig @@ -1053,6 +1053,7 @@ CONFIG_USB_G_HID=m CONFIG_USB_G_WEBCAM=m CONFIG_MMC=y CONFIG_MMC_BLOCK_MINORS=32 +CONFIG_MMC_BCM2835=y CONFIG_MMC_BCM2835_SDHOST=y CONFIG_MMC_SDHCI=y CONFIG_MMC_SDHCI_PLTFM=y From 9b1b3ce0dc7c7f27cef3dba25ad955cb22194360 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Wed, 11 May 2016 12:50:33 +0100 Subject: [PATCH 124/165] mmc: Add MMC_QUIRK_ERASE_BROKEN for some cards Some SD cards have been found that corrupt data when small blocks are erased. Add a quirk to indicate that ERASE should not be used, and set it for cards of that type. Signed-off-by: Phil Elwell mmc: Apply QUIRK_BROKEN_ERASE to other capacities Signed-off-by: Phil Elwell mmc: Add card_quirks module parameter, log quirks Use mmc_block.card_quirks to override the quirks for all SD or MMC cards. The value is a bitfield using the bit positions defined in include/linux/mmc/card.h. If the module parameter is placed in the kernel command line (or bootargs) stored on the card then, assuming the device only has one SD card interface, the override effectively becomes card-specific. Signed-off-by: Phil Elwell --- drivers/mmc/core/block.c | 28 +++++++++++++++++++++++++--- drivers/mmc/core/core.c | 3 ++- drivers/mmc/core/quirks.h | 11 +++++++++++ include/linux/mmc/card.h | 4 ++++ 4 files changed, 42 insertions(+), 4 deletions(-) diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index ff3da960c4736147b2c1348681412953508ac49b..005afc96473037242c8e7f96ade877b4772515ef 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -125,6 +125,13 @@ static DEFINE_MUTEX(open_lock); module_param(perdev_minors, int, 0444); MODULE_PARM_DESC(perdev_minors, "Minors numbers to allocate per device"); +/* + * Allow quirks to be overridden for the current card + */ +static char *card_quirks; +module_param(card_quirks, charp, 0644); +MODULE_PARM_DESC(card_quirks, "Force the use of the indicated quirks (a bitfield)"); + static inline int mmc_blk_part_switch(struct mmc_card *card, struct mmc_blk_data *md); static int get_card_status(struct mmc_card *card, u32 *status, int retries); @@ -2105,6 +2112,7 @@ static int mmc_blk_probe(struct mmc_card *card) { struct mmc_blk_data *md, *part_md; char cap_str[10]; + char quirk_str[24]; /* * Check that the card supports the command class(es) we need. @@ -2112,7 +2120,16 @@ static int mmc_blk_probe(struct mmc_card *card) if (!(card->csd.cmdclass & CCC_BLOCK_READ)) return -ENODEV; - mmc_fixup_device(card, mmc_blk_fixups); + if (card_quirks) { + unsigned long quirks; + if (kstrtoul(card_quirks, 0, &quirks) == 0) + card->quirks = (unsigned int)quirks; + else + pr_err("mmc_block: Invalid card_quirks parameter '%s'\n", + card_quirks); + } + else + mmc_fixup_device(card, mmc_blk_fixups); md = mmc_blk_alloc(card); if (IS_ERR(md)) @@ -2120,9 +2137,14 @@ static int mmc_blk_probe(struct mmc_card *card) string_get_size((u64)get_capacity(md->disk), 512, STRING_UNITS_2, cap_str, sizeof(cap_str)); - pr_info("%s: %s %s %s %s\n", + if (card->quirks) + snprintf(quirk_str, sizeof(quirk_str), + " (quirks 0x%08x)", card->quirks); + else + quirk_str[0] = '\0'; + pr_info("%s: %s %s %s%s%s\n", md->disk->disk_name, mmc_card_id(card), mmc_card_name(card), - cap_str, md->read_only ? "(ro)" : ""); + cap_str, md->read_only ? " (ro)" : "", quirk_str); if (mmc_blk_alloc_parts(card, md)) goto out; diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 926e0fde07d75a441f11ade4c10457bd7dde4ad2..e033394657585325a887e0f0fdfa9e2a299bc747 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -2392,7 +2392,8 @@ EXPORT_SYMBOL(mmc_erase); int mmc_can_erase(struct mmc_card *card) { if ((card->host->caps & MMC_CAP_ERASE) && - (card->csd.cmdclass & CCC_ERASE) && card->erase_size) + (card->csd.cmdclass & CCC_ERASE) && card->erase_size && + !(card->quirks & MMC_QUIRK_ERASE_BROKEN)) return 1; return 0; } diff --git a/drivers/mmc/core/quirks.h b/drivers/mmc/core/quirks.h index fb725934fa21cee1b98fd7bc08227bf6d0317549..05c8d7381fff5ae88531129d9a5ddd554bddb43e 100644 --- a/drivers/mmc/core/quirks.h +++ b/drivers/mmc/core/quirks.h @@ -90,6 +90,17 @@ static const struct mmc_fixup mmc_blk_fixups[] = { MMC_FIXUP("V10016", CID_MANFID_KINGSTON, CID_OEMID_ANY, add_quirk_mmc, MMC_QUIRK_TRIM_BROKEN), + /* + * On some Kingston SD cards, multiple erases of less than 64 + * sectors can cause corruption. + */ + MMC_FIXUP("SD16G", 0x41, 0x3432, add_quirk_mmc, + MMC_QUIRK_ERASE_BROKEN), + MMC_FIXUP("SD32G", 0x41, 0x3432, add_quirk_mmc, + MMC_QUIRK_ERASE_BROKEN), + MMC_FIXUP("SD64G", 0x41, 0x3432, add_quirk_mmc, + MMC_QUIRK_ERASE_BROKEN), + END_FIXUP }; diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 77e61e0a216a2728dd5cfecf55299402ac03c384..d12e8ddd22cb96e38b30f1ac3f9a6bd027cf9cc4 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -267,6 +267,10 @@ struct mmc_card { #define MMC_QUIRK_TRIM_BROKEN (1<<12) /* Skip trim */ #define MMC_QUIRK_BROKEN_HPI (1<<13) /* Disable broken HPI support */ + +#define MMC_QUIRK_ERASE_BROKEN (1<<31) /* Skip erase */ + + unsigned int erase_size; /* erase size in sectors */ unsigned int erase_shift; /* if erase unit is power 2 */ unsigned int pref_erase; /* in sectors */ From dc28578444c1a6061b5b2e955ea6c72dded34d79 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Wed, 29 Mar 2017 16:08:29 +0100 Subject: [PATCH 125/165] bcm2835-sdhost: mmc_card_blockaddr fix Get the definition of mmc_card_blockaddr from drivers/mmc/core/card.h. Signed-off-by: Phil Elwell --- drivers/mmc/host/bcm2835-sdhost.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/mmc/host/bcm2835-sdhost.c b/drivers/mmc/host/bcm2835-sdhost.c index a9bc79bfdbb71807819dfe2d8f1651445997f92a..9c6f199a7830959f31012d86bc1f8b1a9922185f 100644 --- a/drivers/mmc/host/bcm2835-sdhost.c +++ b/drivers/mmc/host/bcm2835-sdhost.c @@ -51,8 +51,12 @@ #include #include #include +#include #include +/* For mmc_card_blockaddr */ +#include "../core/card.h" + #define DRIVER_NAME "sdhost-bcm2835" #define SDCMD 0x00 /* Command to SD card - 16 R/W */ From a490d319e2a4b625f43ef951e813ef7e55a61ece Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Mon, 13 Mar 2017 12:30:37 +0000 Subject: [PATCH 126/165] thermal: Compatible strings for bcm2836, bcm2837 The upstream dt-bindings documentation for bcm2835-thermal (which exists even though the driver isn't upstreamed) says to use dedicated compatible strings on bcm2836 and bcm2837, even though the downstream driver doesn't support them. The Pi2 DTB uses "brcm,bcm2836-thermal", so the driver doesn't load. The Pi3 DTB doesn't override the base value, but the arm64 Pi3 support uses "brcm,bcm2837-thermal". Solve the documentation problem by adding "brcm,bcm2836-thermal" and "brcm,bcm2837-thermal" as alternative compatible strings for the bcm2835-thermal driver. Signed-off-by: Phil Elwell --- drivers/thermal/bcm2835-thermal.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/thermal/bcm2835-thermal.c b/drivers/thermal/bcm2835-thermal.c index c63fb9f9d143e19612a18fe530c7b2b3518a22a4..25b78c3eac1503fbc9e679b963a6284b673b2ed3 100644 --- a/drivers/thermal/bcm2835-thermal.c +++ b/drivers/thermal/bcm2835-thermal.c @@ -89,6 +89,8 @@ static int bcm2835_thermal_remove(struct platform_device *pdev) static const struct of_device_id bcm2835_thermal_of_match_table[] = { { .compatible = "brcm,bcm2835-thermal", }, + { .compatible = "brcm,bcm2836-thermal", }, + { .compatible = "brcm,bcm2837-thermal", }, {}, }; MODULE_DEVICE_TABLE(of, bcm2835_thermal_of_match_table); From f5e7579e3e30c30aa51c2656fb5b14c4340632db Mon Sep 17 00:00:00 2001 From: John Greb Date: Wed, 8 Mar 2017 15:12:29 +0000 Subject: [PATCH 127/165] Match dwc2 device-tree fifo sizes to the hardware values. Since commit aa381a7259c3f53727bcaa8c5f9359e940a0e3fd was reverted with 3fa9538539ac737096c81f3315a14670b1609092 the g-tx-fifo-size array in the device-tree needs to match the preset values in the bcm2835. Resolves https://github.com/raspberrypi/linux/issues/1876 --- arch/arm/boot/dts/overlays/dwc2-overlay.dts | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/overlays/dwc2-overlay.dts b/arch/arm/boot/dts/overlays/dwc2-overlay.dts index 527abc9f0ddf71f4dc7d58336d87684c931cc2f3..265a16bab008453edba198cf2366c423509d60d6 100644 --- a/arch/arm/boot/dts/overlays/dwc2-overlay.dts +++ b/arch/arm/boot/dts/overlays/dwc2-overlay.dts @@ -15,7 +15,7 @@ dr_mode = "otg"; g-np-tx-fifo-size = <32>; g-rx-fifo-size = <256>; - g-tx-fifo-size = <256 128 128 64 64 64 32>; + g-tx-fifo-size = <512 512 512 512 512 768>; status = "okay"; }; }; @@ -24,6 +24,5 @@ dr_mode = <&dwc2_usb>, "dr_mode"; g-np-tx-fifo-size = <&dwc2_usb>,"g-np-tx-fifo-size:0"; g-rx-fifo-size = <&dwc2_usb>,"g-rx-fifo-size:0"; - g-tx-fifo-size = <&dwc2_usb>,"g-tx-fifo-size:0"; }; }; From 57ef2ba796633d357d715589a6e6aa1caf0102b7 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Tue, 14 Mar 2017 09:10:05 +0000 Subject: [PATCH 128/165] BCM270X_DT: Add lm75 to i2c-sensor overlay See: https://www.raspberrypi.org/forums/viewtopic.php?f=107&t=177236 Signed-off-by: Phil Elwell --- arch/arm/boot/dts/overlays/README | 8 +++++--- arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts | 8 ++++++++ 2 files changed, 13 insertions(+), 3 deletions(-) diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README index c1883bba938290f03826026651c764cfd4ac278b..a8853b7820cd7a333cdaa2421f770a834dc724d5 100644 --- a/arch/arm/boot/dts/overlays/README +++ b/arch/arm/boot/dts/overlays/README @@ -388,9 +388,6 @@ Params: dr_mode Dual role mode: "host", "peripheral" or "otg" g-np-tx-fifo-size Size of non-periodic tx fifo size in gadget mode - g-tx-fifo-size Size of periodic tx fifo per endpoint - (except ep0) in gadget mode - [ The ds1307-rtc overlay has been deleted. See i2c-rtc. ] @@ -608,6 +605,11 @@ Params: bmp085 Select the Bosch sensortronic BMP085 bmp280 Select the Bosch sensortronic BMP280 + lm75 Select the Maxim LM75 temperature sensor + + lm75addr Choose the address for the LM75 (0x48-0x4f - + default 0x4f) + si7020 Select the Silicon Labs Si7013/20/21 humidity/ temperature sensor diff --git a/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts b/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts index 31bda8da4cb6a56bfe493a81b918900995fb0589..606b2d5012abf2e85712be631c42ea40a0b512c5 100644 --- a/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts +++ b/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts @@ -25,6 +25,12 @@ status = "disable"; }; + lm75: lm75@4f { + compatible = "lm75"; + reg = <0x4f>; + status = "disable"; + }; + si7020: si7020@40 { compatible = "si7020"; reg = <0x40>; @@ -36,6 +42,8 @@ __overrides__ { bmp085 = <&bmp085>,"status"; bmp280 = <&bmp280>,"status"; + lm75 = <&lm75>,"status"; + lm75addr = <&lm75>,"reg:0"; si7020 = <&si7020>,"status"; }; }; From 918e0a02e223d772231d38cc2548001ada0786ca Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Tue, 28 Mar 2017 14:22:20 +0100 Subject: [PATCH 129/165] BCM270X_DT: Allow multiple instances of w1-gpio overlays Upcoming firmware will modify the address portion of node names when their "reg" property is written by a dtparam. Modify the w1-gpio overlays to write the gpiopin parameter value to "reg" properties, so that multiple instances can be loaded simultaneously. Note: The value of the "address" is unimportant - the w1 subsystem assigns instance numbers to buses sequentially from 1, and it is not necessary to know which bus a device is on in order to find it. --- arch/arm/boot/dts/overlays/w1-gpio-overlay.dts | 6 ++++-- arch/arm/boot/dts/overlays/w1-gpio-pullup-overlay.dts | 6 ++++-- 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/arch/arm/boot/dts/overlays/w1-gpio-overlay.dts b/arch/arm/boot/dts/overlays/w1-gpio-overlay.dts index 29a3b48d19ab36b814c09e4cc4eef6d9e2022da1..f7f8747512653465d01dd1c41a0fcbd2e3e5fbdb 100644 --- a/arch/arm/boot/dts/overlays/w1-gpio-overlay.dts +++ b/arch/arm/boot/dts/overlays/w1-gpio-overlay.dts @@ -23,7 +23,7 @@ fragment@1 { target = <&gpio>; __overlay__ { - w1_pins: w1_pins { + w1_pins: w1_pins@0 { brcm,pins = <4>; brcm,function = <0>; // in (initially) brcm,pull = <0>; // off @@ -33,7 +33,9 @@ __overrides__ { gpiopin = <&w1>,"gpios:4", - <&w1_pins>,"brcm,pins:0"; + <&w1>,"reg:0", + <&w1_pins>,"brcm,pins:0", + <&w1_pins>,"reg:0"; pullup = <&w1>,"rpi,parasitic-power:0"; }; }; diff --git a/arch/arm/boot/dts/overlays/w1-gpio-pullup-overlay.dts b/arch/arm/boot/dts/overlays/w1-gpio-pullup-overlay.dts index 66a98f6c9601f51483f27803995bec772bb3350e..ef8bfbcabdb31231075d5c281df3b38b1b857c7c 100644 --- a/arch/arm/boot/dts/overlays/w1-gpio-pullup-overlay.dts +++ b/arch/arm/boot/dts/overlays/w1-gpio-pullup-overlay.dts @@ -23,7 +23,7 @@ fragment@1 { target = <&gpio>; __overlay__ { - w1_pins: w1_pins { + w1_pins: w1_pins@0 { brcm,pins = <4 5>; brcm,function = <0 1>; // in out brcm,pull = <0 0>; // off off @@ -33,7 +33,9 @@ __overrides__ { gpiopin = <&w1>,"gpios:4", - <&w1_pins>,"brcm,pins:0"; + <&w1>,"reg:0", + <&w1_pins>,"brcm,pins:0", + <&w1_pins>,"reg:0"; extpullup = <&w1>,"gpios:16", <&w1_pins>,"brcm,pins:4"; pullup = <&w1>,"rpi,parasitic-power:0"; From 6b1c9efba585009739f685193ec574217cc09844 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Tue, 28 Mar 2017 17:41:30 +0100 Subject: [PATCH 130/165] leds-gpio: Remove stray assignment to brightness_set The brightness_set method is intended for use cases that must not block, and can only be used if the GPIO provider can never sleep. Remove an accidental initialisation (a copy-and-paste error) that sets it regardless, which has been seen to cause crashes with the gpio expander driver. Signed-off-by: Phil Elwell --- drivers/leds/leds-gpio.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c index 934cdb1d7bc7f12a4fb06a5c458ad76727c7b7c7..a4df27f6af35ba7f7b34c2a4b7b22ee7552264f0 100644 --- a/drivers/leds/leds-gpio.c +++ b/drivers/leds/leds-gpio.c @@ -136,7 +136,6 @@ static int create_gpio_led(const struct gpio_led *template, led_dat->platform_gpio_blink_set = blink_set; led_dat->cdev.blink_set = gpio_blink_set; } - led_dat->cdev.brightness_set = gpio_led_set; led_dat->cdev.brightness_get = gpio_led_get; if (template->default_state == LEDS_GPIO_DEFSTATE_KEEP) { state = gpiod_get_value_cansleep(led_dat->gpiod); From 230abfd651ae2522ea9d93f5c7b11a601039d350 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Wed, 29 Mar 2017 17:41:04 +0100 Subject: [PATCH 131/165] config: Add back MMC_BCM2835_DMA --- arch/arm/configs/bcm2709_defconfig | 1 + arch/arm/configs/bcmrpi_defconfig | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/arm/configs/bcm2709_defconfig b/arch/arm/configs/bcm2709_defconfig index 8163d3cf93032b78fd90af7335b2d1d046a626ff..e565c344016c0bf87640853dc81cda074e3ab2ee 100644 --- a/arch/arm/configs/bcm2709_defconfig +++ b/arch/arm/configs/bcm2709_defconfig @@ -1047,6 +1047,7 @@ CONFIG_USB_GADGET=m CONFIG_MMC=y CONFIG_MMC_BLOCK_MINORS=32 CONFIG_MMC_BCM2835=y +CONFIG_MMC_BCM2835_DMA=y CONFIG_MMC_BCM2835_SDHOST=y CONFIG_MMC_SDHCI=y CONFIG_MMC_SDHCI_PLTFM=y diff --git a/arch/arm/configs/bcmrpi_defconfig b/arch/arm/configs/bcmrpi_defconfig index 021c38a909e71baa135cbcd4f3fb80fad2151647..a8fc96ef674be476d10e59aef2367def40518f03 100644 --- a/arch/arm/configs/bcmrpi_defconfig +++ b/arch/arm/configs/bcmrpi_defconfig @@ -1054,6 +1054,7 @@ CONFIG_USB_G_WEBCAM=m CONFIG_MMC=y CONFIG_MMC_BLOCK_MINORS=32 CONFIG_MMC_BCM2835=y +CONFIG_MMC_BCM2835_DMA=y CONFIG_MMC_BCM2835_SDHOST=y CONFIG_MMC_SDHCI=y CONFIG_MMC_SDHCI_PLTFM=y From 9f138eaa1f13ec6cfa8038041be38b866c5ec041 Mon Sep 17 00:00:00 2001 From: Matt Flax Date: Mon, 27 Mar 2017 22:26:49 +1100 Subject: [PATCH 132/165] AudioInjector Octo: sample rates, regulators, reset This patch adds new sample rates to the Audioinjector Octo sound card. The new supported rates are (in kHz) : 96, 48, 32, 24, 16, 8, 88.2, 44.1, 29.4, 22.05, 14.7 Reference the bcm270x DT regulators in the overlay. This patch adds a reset GPIO for the AudioInjector.net octo sound card. --- .../dts/overlays/audioinjector-addons-overlay.dts | 5 ++ sound/soc/bcm/audioinjector-octo-soundcard.c | 81 ++++++++++++++++++---- 2 files changed, 72 insertions(+), 14 deletions(-) diff --git a/arch/arm/boot/dts/overlays/audioinjector-addons-overlay.dts b/arch/arm/boot/dts/overlays/audioinjector-addons-overlay.dts index dbf2f3cacc2e6bf5b7116fbadd97f2781580a79c..a40bb1193a4cebc5672709e8db861e1167d3a699 100644 --- a/arch/arm/boot/dts/overlays/audioinjector-addons-overlay.dts +++ b/arch/arm/boot/dts/overlays/audioinjector-addons-overlay.dts @@ -25,6 +25,10 @@ reg = <0x48>; clocks = <&cs42448_mclk>; clock-names = "mclk"; + VA-supply = <&vdd_5v0_reg>; + VD-supply = <&vdd_3v3_reg>; + VLS-supply = <&vdd_3v3_reg>; + VLC-supply = <&vdd_3v3_reg>; status = "okay"; }; @@ -42,6 +46,7 @@ compatible = "ai,audioinjector-octo-soundcard"; mult-gpios = <&gpio 27 0>, <&gpio 22 0>, <&gpio 23 0>, <&gpio 24 0>; + reset-gpios = <&gpio 5 0>; i2s-controller = <&i2s>; codec = <&cs42448>; status = "okay"; diff --git a/sound/soc/bcm/audioinjector-octo-soundcard.c b/sound/soc/bcm/audioinjector-octo-soundcard.c index 9effea725798640887755dfa688da45338718afc..dcf403ab37639ba79e38278d7e4b1ade452c292a 100644 --- a/sound/soc/bcm/audioinjector-octo-soundcard.c +++ b/sound/soc/bcm/audioinjector-octo-soundcard.c @@ -27,8 +27,18 @@ #include static struct gpio_descs *mult_gpios; +static struct gpio_desc *codec_rst_gpio; static unsigned int audioinjector_octo_rate; +static const unsigned int audioinjector_octo_rates[] = { + 96000, 48000, 32000, 24000, 16000, 8000, 88200, 44100, 29400, 22050, 14700, +}; + +static struct snd_pcm_hw_constraint_list audioinjector_octo_constraints = { + .list = audioinjector_octo_rates, + .count = ARRAY_SIZE(audioinjector_octo_rates), +}; + static int audioinjector_octo_dai_init(struct snd_soc_pcm_runtime *rtd) { return snd_soc_dai_set_bclk_ratio(rtd->cpu_dai, 64); @@ -42,6 +52,11 @@ static int audioinjector_octo_startup(struct snd_pcm_substream *substream) rtd->cpu_dai->driver->capture.channels_min = 8; rtd->cpu_dai->driver->capture.channels_max = 8; rtd->codec_dai->driver->capture.channels_max = 8; + + snd_pcm_hw_constraint_list(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + &audioinjector_octo_constraints); + return 0; } @@ -76,7 +91,43 @@ static int audioinjector_octo_hw_params(struct snd_pcm_substream *substream, audioinjector_octo_rate = params_rate(params); - return 0; + // Set the correct sysclock for the codec + switch (audioinjector_octo_rate) { + case 96000: + case 48000: + return snd_soc_dai_set_sysclk(rtd->codec_dai, 0, 49152000, + 0); + break; + case 24000: + return snd_soc_dai_set_sysclk(rtd->codec_dai, 0, 49152000/2, + 0); + break; + case 32000: + case 16000: + return snd_soc_dai_set_sysclk(rtd->codec_dai, 0, 49152000/3, + 0); + break; + case 8000: + return snd_soc_dai_set_sysclk(rtd->codec_dai, 0, 49152000/6, + 0); + break; + case 88200: + case 44100: + return snd_soc_dai_set_sysclk(rtd->codec_dai, 0, 45185400, + 0); + break; + case 22050: + return snd_soc_dai_set_sysclk(rtd->codec_dai, 0, 45185400/2, + 0); + break; + case 29400: + case 14700: + return snd_soc_dai_set_sysclk(rtd->codec_dai, 0, 45185400/3, + 0); + break; + default: + return -EINVAL; + } } static int audioinjector_octo_trigger(struct snd_pcm_substream *substream, @@ -92,25 +143,12 @@ static int audioinjector_octo_trigger(struct snd_pcm_substream *substream, case SNDRV_PCM_TRIGGER_RESUME: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: switch (audioinjector_octo_rate) { - case 192000: - mult[3] = 1; - case 176640: - mult[0] = 1; - mult[1] = 1; - mult[2] = 1; - break; case 96000: mult[3] = 1; case 88200: mult[1] = 1; mult[2] = 1; break; - case 64000: - mult[3] = 1; - case 58800: - mult[0] = 1; - mult[2] = 1; - break; case 48000: mult[3] = 1; case 44100: @@ -231,6 +269,21 @@ static int audioinjector_octo_probe(struct platform_device *pdev) if (IS_ERR(mult_gpios)) return PTR_ERR(mult_gpios); + codec_rst_gpio = devm_gpiod_get_optional(&pdev->dev, "reset", + GPIOD_OUT_LOW); + if (IS_ERR(codec_rst_gpio)) + return PTR_ERR(codec_rst_gpio); + + if (codec_rst_gpio) + gpiod_set_value(codec_rst_gpio, 1); + msleep(500); + if (codec_rst_gpio) + gpiod_set_value(codec_rst_gpio, 0); + msleep(500); + if (codec_rst_gpio) + gpiod_set_value(codec_rst_gpio, 1); + msleep(500); + if (i2s_node && codec_node) { dai->cpu_dai_name = NULL; dai->cpu_of_node = i2s_node; From d70d42d5abbda9774fc9111950c64c5f802c4216 Mon Sep 17 00:00:00 2001 From: Peter Malkin Date: Mon, 27 Mar 2017 16:38:21 -0700 Subject: [PATCH 133/165] Driver support for Google voiceHAT soundcard. --- arch/arm/boot/dts/overlays/Makefile | 1 + arch/arm/boot/dts/overlays/README | 6 + .../overlays/googlevoicehat-soundcard-overlay.dts | 49 +++++ arch/arm/configs/bcm2709_defconfig | 1 + arch/arm/configs/bcmrpi_defconfig | 1 + sound/soc/bcm/Kconfig | 7 + sound/soc/bcm/Makefile | 6 + sound/soc/bcm/googlevoicehat-codec.c | 199 +++++++++++++++++++++ sound/soc/bcm/googlevoicehat-soundcard.c | 124 +++++++++++++ 9 files changed, 394 insertions(+) create mode 100644 arch/arm/boot/dts/overlays/googlevoicehat-soundcard-overlay.dts create mode 100644 sound/soc/bcm/googlevoicehat-codec.c create mode 100644 sound/soc/bcm/googlevoicehat-soundcard.c diff --git a/arch/arm/boot/dts/overlays/Makefile b/arch/arm/boot/dts/overlays/Makefile index 0f7340799fb465ba1fb5aaa1e970cbf6295d75c4..2f1cd17697606687fe47cb4e6a25a572611bf241 100644 --- a/arch/arm/boot/dts/overlays/Makefile +++ b/arch/arm/boot/dts/overlays/Makefile @@ -23,6 +23,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \ enc28j60.dtbo \ enc28j60-spi2.dtbo \ fe-pi-audio.dtbo \ + googlevoicehat-soundcard.dtbo \ gpio-ir.dtbo \ gpio-poweroff.dtbo \ hifiberry-amp.dtbo \ diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README index a8853b7820cd7a333cdaa2421f770a834dc724d5..6870e83a2e6acf842259a769d483b0b98c172279 100644 --- a/arch/arm/boot/dts/overlays/README +++ b/arch/arm/boot/dts/overlays/README @@ -414,6 +414,12 @@ Load: dtoverlay=fe-pi-audio Params: +Name: googlevoicehat-soundcard +Info: Configures the Google voiceHAT soundcard +Load: dtoverlay=googlevoicehat-soundcard +Params: + + Name: gpio-ir Info: Use GPIO pin as rc-core style infrared receiver input. The rc-core- based gpio_ir_recv driver maps received keys directly to a diff --git a/arch/arm/boot/dts/overlays/googlevoicehat-soundcard-overlay.dts b/arch/arm/boot/dts/overlays/googlevoicehat-soundcard-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..9a9e9a0ca28cf774a868b2882ae57b00de1cf7b7 --- /dev/null +++ b/arch/arm/boot/dts/overlays/googlevoicehat-soundcard-overlay.dts @@ -0,0 +1,49 @@ +// Definitions for Google voiceHAT v1 soundcard overlay +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + googlevoicehat_pins: googlevoicehat_pins { + brcm,pins = <16>; + brcm,function = <1>; /* out */ + brcm,pull = <0>; /* up */ + }; + }; + }; + + + fragment@2 { + target-path = "/"; + __overlay__ { + voicehat-codec { + #sound-dai-cells = <0>; + compatible = "google,voicehat"; + pinctrl-names = "default"; + pinctrl-0 = <&googlevoicehat_pins>; + sdmode-gpios= <&gpio 16 0>; + status = "okay"; + }; + }; + }; + + fragment@3 { + target = <&sound>; + __overlay__ { + compatible = "googlevoicehat,googlevoicehat-soundcard"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; +}; diff --git a/arch/arm/configs/bcm2709_defconfig b/arch/arm/configs/bcm2709_defconfig index e565c344016c0bf87640853dc81cda074e3ab2ee..f68fc97d2a9c28154880b5d55ce90b0b0974acc6 100644 --- a/arch/arm/configs/bcm2709_defconfig +++ b/arch/arm/configs/bcm2709_defconfig @@ -876,6 +876,7 @@ CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC=m CONFIG_SND_BCM2708_SOC_IQAUDIO_DIGI=m CONFIG_SND_BCM2708_SOC_RASPIDAC3=m CONFIG_SND_BCM2708_SOC_ADAU1977_ADC=m +CONFIG_SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD=m CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD=m CONFIG_SND_AUDIOINJECTOR_OCTO_SOUNDCARD=m CONFIG_SND_DIGIDAC1_SOUNDCARD=m diff --git a/arch/arm/configs/bcmrpi_defconfig b/arch/arm/configs/bcmrpi_defconfig index a8fc96ef674be476d10e59aef2367def40518f03..1a9b95f1b731c48130a0b468d95d533f458cb2d6 100644 --- a/arch/arm/configs/bcmrpi_defconfig +++ b/arch/arm/configs/bcmrpi_defconfig @@ -870,6 +870,7 @@ CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC=m CONFIG_SND_BCM2708_SOC_IQAUDIO_DIGI=m CONFIG_SND_BCM2708_SOC_RASPIDAC3=m CONFIG_SND_BCM2708_SOC_ADAU1977_ADC=m +CONFIG_SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD=m CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD=m CONFIG_SND_AUDIOINJECTOR_OCTO_SOUNDCARD=m CONFIG_SND_DIGIDAC1_SOUNDCARD=m diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index 706c500b5303ac3a0fd8687d23dc9f06c7d08388..cb9edcc96247e47855907da06b14a13695d408df 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -18,6 +18,13 @@ config SND_SOC_CYGNUS If you don't know what to do here, say N. +config SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD + tristate "Support for Google voiceHAT soundcard" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_VOICEHAT + help + Say Y or M if you want to add support for voiceHAT soundcard. + config SND_BCM2708_SOC_HIFIBERRY_DAC tristate "Support for HifiBerry DAC" depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index d448aa517bf994fc0a41580c91b5d87deec9e1b0..e37457f01b263ba47ad884c7e945d33b001d9c66 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -8,8 +8,12 @@ snd-soc-cygnus-objs := cygnus-pcm.o cygnus-ssp.o obj-$(CONFIG_SND_SOC_CYGNUS) += snd-soc-cygnus.o +# Google voiceHAT custom codec support +snd-soc-googlevoicehat-codec-objs := googlevoicehat-codec.o + # BCM2708 Machine Support snd-soc-adau1977-adc-objs := adau1977-adc.o +snd-soc-googlevoicehat-soundcard-objs := googlevoicehat-soundcard.o snd-soc-hifiberry-amp-objs := hifiberry_amp.o snd-soc-hifiberry-dac-objs := hifiberry_dac.o snd-soc-hifiberry-dacplus-objs := hifiberry_dacplus.o @@ -32,6 +36,8 @@ snd-soc-pisound-objs := pisound.o snd-soc-fe-pi-audio-objs := fe-pi-audio.o obj-$(CONFIG_SND_BCM2708_SOC_ADAU1977_ADC) += snd-soc-adau1977-adc.o +obj-$(CONFIG_SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD) += snd-soc-googlevoicehat-soundcard.o +obj-$(CONFIG_SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD) += snd-soc-googlevoicehat-codec.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) += snd-soc-hifiberry-amp.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o diff --git a/sound/soc/bcm/googlevoicehat-codec.c b/sound/soc/bcm/googlevoicehat-codec.c new file mode 100644 index 0000000000000000000000000000000000000000..7e31c9c54652cd9bd050028efb82dfc09fd9fced --- /dev/null +++ b/sound/soc/bcm/googlevoicehat-codec.c @@ -0,0 +1,199 @@ +/* + * Driver for the Google voiceHAT audio codec for Raspberry Pi. + * + * Author: Peter Malkin + * Copyright 2016 + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define ICS43432_RATE_MIN_HZ 7190 /* from data sheet */ +#define ICS43432_RATE_MAX_HZ 52800 /* from data sheet */ +#define SDMODE_DELAY_MS \ + 5 /* Delay in enabling SDMODE after clock settles to remove pop */ + +struct voicehat_priv { + struct delayed_work enable_sdmode_work; + struct gpio_desc *sdmode_gpio; + unsigned int sdmode_delay; +}; + +static void voicehat_enable_sdmode_work(struct work_struct *work) { + struct voicehat_priv *voicehat = + container_of(work, struct voicehat_priv, enable_sdmode_work.work); + gpiod_set_value(voicehat->sdmode_gpio, 1); +} + +static int voicehat_codec_probe(struct snd_soc_codec *codec) { + struct voicehat_priv *voicehat = snd_soc_codec_get_drvdata(codec); + + voicehat->sdmode_gpio = devm_gpiod_get(codec->dev, "sdmode", GPIOD_OUT_LOW); + if (IS_ERR(voicehat->sdmode_gpio)) { + dev_err(codec->dev, "Unable to allocate GPIO pin\n"); + return PTR_ERR(voicehat->sdmode_gpio); + } + + INIT_DELAYED_WORK(&voicehat->enable_sdmode_work, voicehat_enable_sdmode_work); + return 0; +} + +static int voicehat_codec_remove(struct snd_soc_codec *codec) { + struct voicehat_priv *voicehat = snd_soc_codec_get_drvdata(codec); + + cancel_delayed_work_sync(&voicehat->enable_sdmode_work); + + return 0; +} + +static const struct snd_soc_dapm_widget voicehat_dapm_widgets[] = { + SND_SOC_DAPM_OUTPUT("Speaker"), +}; + +static const struct snd_soc_dapm_route voicehat_dapm_routes[] = { + {"Speaker", NULL, "HiFi Playback"}, +}; + +static struct snd_soc_codec_driver voicehat_codec_driver = { + .probe = voicehat_codec_probe, + .remove = voicehat_codec_remove, +#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0) + .component_driver = { +#endif + .dapm_widgets = voicehat_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(voicehat_dapm_widgets), + .dapm_routes = voicehat_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(voicehat_dapm_routes), +#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0) + }, +#endif +}; + +static int voicehat_daiops_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) { + struct snd_soc_codec *codec = dai->codec; + struct voicehat_priv *voicehat = snd_soc_codec_get_drvdata(codec); + + if (voicehat->sdmode_delay == 0) return 0; + + dev_dbg(dai->dev, "CMD %d", cmd); + dev_dbg(dai->dev, "Playback Active %d", dai->playback_active); + dev_dbg(dai->dev, "Capture Active %d", dai->capture_active); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + if (dai->playback_active) { + dev_info(dai->dev, "Enabling audio amp...\n"); + queue_delayed_work(system_power_efficient_wq, + &voicehat->enable_sdmode_work, + msecs_to_jiffies(voicehat->sdmode_delay)); + } + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + if (dai->playback_active) { + cancel_delayed_work(&voicehat->enable_sdmode_work); + dev_info(dai->dev, "Disabling audio amp...\n"); + gpiod_set_value(voicehat->sdmode_gpio, 0); + } + break; + } + return 0; +} + +static const struct snd_soc_dai_ops voicehat_dai_ops = { + .trigger = voicehat_daiops_trigger, +}; + +static struct snd_soc_dai_driver voicehat_dai = { + .name = "voicehat-hifi", + .capture = {.stream_name = "HiFi Capture", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_48000, + .formats = SNDRV_PCM_FMTBIT_S32_LE}, + .playback = {.stream_name = "HiFi Playback", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_48000, + .formats = SNDRV_PCM_FMTBIT_S32_LE}, + .ops = &voicehat_dai_ops, + .symmetric_rates = 1}; + +#ifdef CONFIG_OF +static const struct of_device_id voicehat_ids[] = { + { + .compatible = "google,voicehat", + }, + {}}; +MODULE_DEVICE_TABLE(of, voicehat_ids); +#endif + +static int voicehat_platform_probe(struct platform_device *pdev) { + struct voicehat_priv *voicehat; + int ret; + + voicehat = devm_kzalloc(&pdev->dev, sizeof(*voicehat), GFP_KERNEL); + if (!voicehat) return -ENOMEM; + + ret = device_property_read_u32(&pdev->dev, "voicehat_sdmode_delay", + &voicehat->sdmode_delay); + + if (ret) { + voicehat->sdmode_delay = SDMODE_DELAY_MS; + dev_info(&pdev->dev, + "property 'voicehat_sdmode_delay' not found default 5 mS"); + } else { + dev_info(&pdev->dev, "property 'voicehat_sdmode_delay' found delay= %d mS", + voicehat->sdmode_delay); + } + + dev_set_drvdata(&pdev->dev, voicehat); + + return snd_soc_register_codec(&pdev->dev, &voicehat_codec_driver, &voicehat_dai, 1); +} + +static int voicehat_platform_remove(struct platform_device *pdev) { + snd_soc_unregister_codec(&pdev->dev); + return 0; +} + +static struct platform_driver voicehat_driver = { + .driver = + { + .name = "voicehat-codec", .of_match_table = of_match_ptr(voicehat_ids), + }, + .probe = voicehat_platform_probe, + .remove = voicehat_platform_remove, +}; + +module_platform_driver(voicehat_driver); + +MODULE_DESCRIPTION("Google voiceHAT Codec driver"); +MODULE_AUTHOR("Peter Malkin "); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/bcm/googlevoicehat-soundcard.c b/sound/soc/bcm/googlevoicehat-soundcard.c new file mode 100644 index 0000000000000000000000000000000000000000..225854b8e5298b3c3018f59a49404354a831a24e --- /dev/null +++ b/sound/soc/bcm/googlevoicehat-soundcard.c @@ -0,0 +1,124 @@ +/* + * ASoC Driver for Google voiceHAT SoundCard + * + * Author: Peter Malkin + * Copyright 2016 + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include + +#include +#include +#include +#include +#include + +static int snd_rpi_googlevoicehat_soundcard_init(struct snd_soc_pcm_runtime *rtd) +{ + return 0; +} + +static int snd_rpi_googlevoicehat_soundcard_hw_params( + struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + + unsigned int sample_bits = + snd_pcm_format_physical_width(params_format(params)); + + return snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2); +} + +/* machine stream operations */ +static struct snd_soc_ops snd_rpi_googlevoicehat_soundcard_ops = { + .hw_params = snd_rpi_googlevoicehat_soundcard_hw_params, +}; + +static struct snd_soc_dai_link snd_rpi_googlevoicehat_soundcard_dai[] = { +{ + .name = "Google voiceHAT SoundCard", + .stream_name = "Google voiceHAT SoundCard HiFi", + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "voicehat-hifi", + .platform_name = "bcm2708-i2s.0", + .codec_name = "voicehat-codec", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + .ops = &snd_rpi_googlevoicehat_soundcard_ops, + .init = snd_rpi_googlevoicehat_soundcard_init, +}, +}; + +/* audio machine driver */ +static struct snd_soc_card snd_rpi_googlevoicehat_soundcard = { + .name = "snd_rpi_googlevoicehat_soundcard", + .owner = THIS_MODULE, + .dai_link = snd_rpi_googlevoicehat_soundcard_dai, + .num_links = ARRAY_SIZE(snd_rpi_googlevoicehat_soundcard_dai), +}; + +static int snd_rpi_googlevoicehat_soundcard_probe(struct platform_device *pdev) +{ + int ret = 0; + + snd_rpi_googlevoicehat_soundcard.dev = &pdev->dev; + + if (pdev->dev.of_node) { + struct device_node *i2s_node; + struct snd_soc_dai_link *dai = &snd_rpi_googlevoicehat_soundcard_dai[0]; + i2s_node = of_parse_phandle(pdev->dev.of_node, + "i2s-controller", 0); + + if (i2s_node) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + } + } + + ret = snd_soc_register_card(&snd_rpi_googlevoicehat_soundcard); + if (ret) + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret); + + return ret; +} + +static int snd_rpi_googlevoicehat_soundcard_remove(struct platform_device *pdev) +{ + return snd_soc_unregister_card(&snd_rpi_googlevoicehat_soundcard); +} + +static const struct of_device_id snd_rpi_googlevoicehat_soundcard_of_match[] = { + { .compatible = "googlevoicehat,googlevoicehat-soundcard", }, + {}, +}; +MODULE_DEVICE_TABLE(of, snd_rpi_googlevoicehat_soundcard_of_match); + +static struct platform_driver snd_rpi_googlevoicehat_soundcard_driver = { + .driver = { + .name = "snd-googlevoicehat-soundcard", + .owner = THIS_MODULE, + .of_match_table = snd_rpi_googlevoicehat_soundcard_of_match, + }, + .probe = snd_rpi_googlevoicehat_soundcard_probe, + .remove = snd_rpi_googlevoicehat_soundcard_remove, +}; + +module_platform_driver(snd_rpi_googlevoicehat_soundcard_driver); + +MODULE_AUTHOR("Peter Malkin "); +MODULE_DESCRIPTION("ASoC Driver for Google voiceHAT SoundCard"); +MODULE_LICENSE("GPL v2"); From 9f310cc4f5cfde4c6ff8326feb26f3b2c20f4e97 Mon Sep 17 00:00:00 2001 From: Raashid Muhammed Date: Mon, 27 Mar 2017 12:35:00 +0530 Subject: [PATCH 134/165] Add support for Allo Piano DAC 2.1 plus add-on board for Raspberry Pi. The Piano DAC 2.1 has support for 4 channels with subwoofer. Signed-off-by: Baswaraj K Reviewed-by: Vijay Kumar B. Reviewed-by: Raashid Muhammed --- arch/arm/boot/dts/overlays/Makefile | 1 + arch/arm/boot/dts/overlays/README | 18 + .../allo-piano-dac-plus-pcm512x-audio-overlay.dts | 51 +++ sound/soc/bcm/Kconfig | 7 + sound/soc/bcm/Makefile | 2 + sound/soc/bcm/allo-piano-dac-plus.c | 467 +++++++++++++++++++++ 6 files changed, 546 insertions(+) create mode 100644 arch/arm/boot/dts/overlays/allo-piano-dac-plus-pcm512x-audio-overlay.dts create mode 100644 sound/soc/bcm/allo-piano-dac-plus.c diff --git a/arch/arm/boot/dts/overlays/Makefile b/arch/arm/boot/dts/overlays/Makefile index 2f1cd17697606687fe47cb4e6a25a572611bf241..73826c74d2cfb58cac1a72e523ce00b021411d16 100644 --- a/arch/arm/boot/dts/overlays/Makefile +++ b/arch/arm/boot/dts/overlays/Makefile @@ -8,6 +8,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \ ads7846.dtbo \ akkordion-iqdacplus.dtbo \ allo-piano-dac-pcm512x-audio.dtbo \ + allo-piano-dac-plus-pcm512x-audio.dtbo \ at86rf233.dtbo \ audioinjector-addons.dtbo \ audioinjector-wm8731-audio.dtbo \ diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README index 6870e83a2e6acf842259a769d483b0b98c172279..1e3420e80d620f3c376ffb7c905e7aba7f63d709 100644 --- a/arch/arm/boot/dts/overlays/README +++ b/arch/arm/boot/dts/overlays/README @@ -283,6 +283,24 @@ Params: 24db_digital_gain Allow gain to be applied via the PCM512x codec that does not result in clipping/distortion!) +Name: allo-piano-dac-plus-pcm512x-audio +Info: Configures the Allo Piano DAC (2.1) audio cards. +Load: dtoverlay=allo-piano-dac-plus-pcm512x-audio, +Params: 24db_digital_gain Allow gain to be applied via the PCM512x codec + Digital volume control. + (The default behaviour is that the Digital + volume control is limited to a maximum of + 0dB. ie. it can attenuate but not provide + gain. For most users, this will be desired + as it will prevent clipping. By appending + the 24db_digital_gain parameter, the Digital + volume control will allow up to 24dB of + gain. If this parameter is enabled, it is the + responsibility of the user to ensure that + the Digital volume control is set to a value + that does not result in clipping/distortion!) + + Name: at86rf233 Info: Configures the Atmel AT86RF233 802.15.4 low-power WPAN transceiver, connected to spi0.0 diff --git a/arch/arm/boot/dts/overlays/allo-piano-dac-plus-pcm512x-audio-overlay.dts b/arch/arm/boot/dts/overlays/allo-piano-dac-plus-pcm512x-audio-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..6943b55ca5f96097668e2d10c05f56a26be62b0a --- /dev/null +++ b/arch/arm/boot/dts/overlays/allo-piano-dac-plus-pcm512x-audio-overlay.dts @@ -0,0 +1,51 @@ +// Definitions for Piano DAC +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + pcm5122_4c: pcm5122@4c { + #sound-dai-cells = <0>; + compatible = "ti,pcm5122"; + reg = <0x4c>; + status = "okay"; + }; + pcm5122_4d: pcm5122@4d { + #sound-dai-cells = <0>; + compatible = "ti,pcm5122"; + reg = <0x4d>; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&sound>; + piano_dac: __overlay__ { + compatible = "allo,piano-dac-plus"; + audio-codec = <&pcm5122_4c &pcm5122_4d>; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; + + __overrides__ { + 24db_digital_gain = + <&piano_dac>,"piano,24db_digital_gain?"; + }; +}; diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index cb9edcc96247e47855907da06b14a13695d408df..ee59713344b3d0385c4d659d6dab3da8c2a60633 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -162,6 +162,13 @@ config SND_BCM2708_SOC_ALLO_PIANO_DAC help Say Y or M if you want to add support for Allo Piano DAC. +config SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS + tristate "Support for Allo Piano DAC Plus" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_PCM512x_I2C + help + Say Y or M if you want to add support for Allo Piano DAC Plus. + config SND_BCM2708_SOC_FE_PI_AUDIO tristate "Support for Fe-Pi-Audio" depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index e37457f01b263ba47ad884c7e945d33b001d9c66..54b4111ad820b3f8086867ca2ce86d5339fca93e 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -32,6 +32,7 @@ snd-soc-digidac1-soundcard-objs := digidac1-soundcard.o snd-soc-dionaudio-loco-objs := dionaudio_loco.o snd-soc-dionaudio-loco-v2-objs := dionaudio_loco-v2.o snd-soc-allo-piano-dac-objs := allo-piano-dac.o +snd-soc-allo-piano-dac-plus-objs := allo-piano-dac-plus.o snd-soc-pisound-objs := pisound.o snd-soc-fe-pi-audio-objs := fe-pi-audio.o @@ -56,5 +57,6 @@ obj-$(CONFIG_SND_DIGIDAC1_SOUNDCARD) += snd-soc-digidac1-soundcard.o obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO) += snd-soc-dionaudio-loco.o obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO_V2) += snd-soc-dionaudio-loco-v2.o obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC) += snd-soc-allo-piano-dac.o +obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS) += snd-soc-allo-piano-dac-plus.o obj-$(CONFIG_SND_PISOUND) += snd-soc-pisound.o obj-$(CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO) += snd-soc-fe-pi-audio.o diff --git a/sound/soc/bcm/allo-piano-dac-plus.c b/sound/soc/bcm/allo-piano-dac-plus.c new file mode 100644 index 0000000000000000000000000000000000000000..f66f42abadbd5f9d3fe000676e8297ed91630e47 --- /dev/null +++ b/sound/soc/bcm/allo-piano-dac-plus.c @@ -0,0 +1,467 @@ +/* + * ALSA ASoC Machine Driver for Allo Piano DAC Plus Subwoofer + * + * Author: Baswaraj K + * Copyright 2016 + * based on code by Daniel Matuschek + * based on code by Florian Meier + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include "../codecs/pcm512x.h" + +struct dsp_code { + char i2c_addr; + char offset; + char val; +}; + +static struct snd_soc_pcm_runtime *rtd_glb; +static bool digital_gain_0db_limit = true; +unsigned int set_lowpass, set_mode, set_rate, dsp_page_number; + +static const char * const allo_piano_mode_texts[] = { + "2.0", + "2.1", + "2.2", +}; + +static const SOC_ENUM_SINGLE_DECL(allo_piano_mode_enum, + 0, 0, allo_piano_mode_texts); + +static const char * const allo_piano_dsp_low_pass_texts[] = { + "60", + "70", + "80", + "90", + "100", + "110", + "120", + "130", + "140", + "150", + "160", + "170", + "180", + "190", + "200", +}; + +static const SOC_ENUM_SINGLE_DECL(allo_piano_enum, + 0, 0, allo_piano_dsp_low_pass_texts); + +static int snd_allo_piano_dsp_program(struct snd_soc_pcm_runtime *rtd, + unsigned int mode, unsigned int rate, unsigned int lowpass) +{ + const struct firmware *fw; + char firmware_name[40]; + int ret = 0, dac = 0; + + if (rate <= 46000) + rate = 44100; + else if (rate <= 68000) + rate = 48000; + else if (rate <= 92000) + rate = 88200; + else if (rate <= 136000) + rate = 96000; + else if (rate <= 184000) + rate = 176400; + else + rate = 192000; + + /* same configuration loaded */ + if ((rate == set_rate) && (lowpass == set_lowpass) + && (mode == set_mode)) + return 1; + + set_rate = rate; + set_mode = mode; + + if (mode == 0) { /* 2.0 */ + snd_soc_write(rtd->codec_dais[1]->codec, + PCM512x_MUTE, 0x11); + return 1; + } else { + snd_soc_write(rtd->codec_dais[1]->codec, + PCM512x_MUTE, 0x00); + } + + set_lowpass = lowpass; + + for (dac = 0; dac < rtd->num_codecs; dac++) { + struct dsp_code *dsp_code_read; + int i = 1; + struct snd_soc_codec *codec = rtd->codec_dais[dac]->codec; + + if (dac == 0) { /* high */ + sprintf(firmware_name, + "alloPiano/2.2/allo-piano-dsp-%d-%d-%d.bin", + rate, ((set_lowpass * 10) + 60), dac); + } else { /* low */ + sprintf(firmware_name, + "alloPiano/2.%d/allo-piano-dsp-%d-%d-%d.bin", + set_mode, rate, ((set_lowpass * 10) + 60), dac); + } + + dev_info(codec->dev, "Dsp Firmware File Name: %s\n", + firmware_name); + + ret = request_firmware(&fw, firmware_name, codec->dev); + if (ret < 0) { + dev_err(codec->dev, "Error: AlloPiano Firmware %s missing. %d\n", + firmware_name, ret); + goto err; + } + + while (i < (fw->size - 1)) { + dsp_code_read = (struct dsp_code *)&fw->data[i]; + + if (dsp_code_read->offset == 0) { + dsp_page_number = dsp_code_read->val; + ret = snd_soc_write(rtd->codec_dais[dac]->codec, + PCM512x_PAGE_BASE(0), + dsp_code_read->val); + + } else if (dsp_code_read->offset != 0) { + ret = snd_soc_write(rtd->codec_dais[dac]->codec, + (PCM512x_PAGE_BASE(dsp_page_number) + + dsp_code_read->offset), + dsp_code_read->val); + + } + if (ret < 0) { + dev_err(codec->dev, + "Failed to write Register: %d\n", ret); + goto err; + } + i = i + 3; + } + release_firmware(fw); + } + return 1; + +err: + release_firmware(fw); + return ret; +} + +static int snd_allo_piano_mode_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.integer.value[0] = set_mode; + return 0; +} + +static int snd_allo_piano_mode_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + return(snd_allo_piano_dsp_program(rtd_glb, + ucontrol->value.integer.value[0], + set_rate, set_lowpass)); +} + +static int snd_allo_piano_lowpass_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.integer.value[0] = set_lowpass; + return 0; +} + +static int snd_allo_piano_lowpass_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + return(snd_allo_piano_dsp_program(rtd_glb, + set_mode, set_rate, + ucontrol->value.integer.value[0])); +} + +static int pcm512x_get_reg_sub(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + unsigned int left_val = 0; + unsigned int right_val = 0; + + left_val = snd_soc_read(rtd_glb->codec_dais[1]->codec, + PCM512x_DIGITAL_VOLUME_2); + if (left_val < 0) + return left_val; + + right_val = snd_soc_read(rtd_glb->codec_dais[1]->codec, + PCM512x_DIGITAL_VOLUME_3); + if (right_val < 0) + return right_val; + + ucontrol->value.integer.value[0] = + (~(left_val >> mc->shift)) & mc->max; + ucontrol->value.integer.value[1] = + (~(right_val >> mc->shift)) & mc->max; + + return 0; +} + +static int pcm512x_set_reg_sub(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + unsigned int left_val = (ucontrol->value.integer.value[0] & mc->max); + unsigned int right_val = (ucontrol->value.integer.value[1] & mc->max); + int ret = 0; + + ret = snd_soc_write(rtd_glb->codec_dais[1]->codec, + PCM512x_DIGITAL_VOLUME_2, (~left_val)); + if (ret < 0) + return ret; + + ret = snd_soc_write(rtd_glb->codec_dais[1]->codec, + PCM512x_DIGITAL_VOLUME_3, (~right_val)); + if (ret < 0) + return ret; + + return 1; +} + +static int pcm512x_get_reg_sub_switch(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int val = 0; + + val = snd_soc_read(rtd_glb->codec_dais[1]->codec, PCM512x_MUTE); + if (val < 0) + return val; + + ucontrol->value.integer.value[0] = (val & 0x10) ? 0 : 1; + ucontrol->value.integer.value[1] = (val & 0x01) ? 0 : 1; + + return val; +} + +static int pcm512x_set_reg_sub_switch(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + unsigned int left_val = (ucontrol->value.integer.value[0]); + unsigned int right_val = (ucontrol->value.integer.value[1]); + int ret = 0; + + ret = snd_soc_write(rtd_glb->codec_dais[1]->codec, PCM512x_MUTE, + ~((left_val & 0x01)<<4 | (right_val & 0x01))); + if (ret < 0) + return ret; + + return 1; + +} + +static const DECLARE_TLV_DB_SCALE(digital_tlv_sub, -10350, 50, 1); + +static const struct snd_kcontrol_new allo_piano_controls[] = { + SOC_ENUM_EXT("Subwoofer mode", + allo_piano_mode_enum, + snd_allo_piano_mode_get, + snd_allo_piano_mode_put), + + SOC_ENUM_EXT("Lowpass", allo_piano_enum, + snd_allo_piano_lowpass_get, + snd_allo_piano_lowpass_put), + + SOC_DOUBLE_R_EXT_TLV("Subwoofer Digital Playback Volume", + PCM512x_DIGITAL_VOLUME_2, + PCM512x_DIGITAL_VOLUME_3, 0, 255, 1, + pcm512x_get_reg_sub, + pcm512x_set_reg_sub, + digital_tlv_sub), + + SOC_DOUBLE_EXT("Subwoofer Digital Playback Switch", + PCM512x_MUTE, + PCM512x_RQML_SHIFT, + PCM512x_RQMR_SHIFT, 1, 1, + pcm512x_get_reg_sub_switch, + pcm512x_set_reg_sub_switch), +}; + +static int snd_allo_piano_dac_init(struct snd_soc_pcm_runtime *rtd) +{ + rtd_glb = rtd; + + if (digital_gain_0db_limit) { + int ret; + struct snd_soc_card *card = rtd->card; + + ret = snd_soc_limit_volume(card, "Digital Playback Volume", + 207); + if (ret < 0) + dev_warn(card->dev, "Failed to set volume limit: %d\n", + ret); + } + + return 0; +} + +static int snd_allo_piano_dac_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + unsigned int sample_bits = + snd_pcm_format_physical_width(params_format(params)); + unsigned int rate = params_rate(params); + struct snd_soc_card *card = rtd->card; + int ret = 0; + + rtd_glb = rtd; /* TODO */ + if (digital_gain_0db_limit) { + ret = snd_soc_limit_volume(card, + "Subwoofer Digital Playback Volume", 207); + if (ret < 0) + dev_warn(card->dev, "Failed to set volume limit: %d\n", + ret); + } + ret = snd_allo_piano_dsp_program(rtd, set_mode, rate, set_lowpass); + if (ret < 0) + return ret; + + ret = snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2); + + return ret; +} + +/* machine stream operations */ +static struct snd_soc_ops snd_allo_piano_dac_ops = { + .hw_params = snd_allo_piano_dac_hw_params, +}; + +static struct snd_soc_dai_link_component allo_piano_2_1_codecs[] = { + { + .dai_name = "pcm512x-hifi", + }, + { + .dai_name = "pcm512x-hifi", + }, +}; + +static struct snd_soc_dai_link snd_allo_piano_dac_dai[] = { + { + .name = "PianoDACPlus", + .stream_name = "PianoDACPlus", + .cpu_dai_name = "bcm2708-i2s.0", + .platform_name = "bcm2708-i2s.0", + .codecs = allo_piano_2_1_codecs, + .num_codecs = 2, + .dai_fmt = SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + .ops = &snd_allo_piano_dac_ops, + .init = snd_allo_piano_dac_init, + }, +}; + +/* audio machine driver */ +static struct snd_soc_card snd_allo_piano_dac = { + .name = "PianoDACPlus", + .owner = THIS_MODULE, + .dai_link = snd_allo_piano_dac_dai, + .num_links = ARRAY_SIZE(snd_allo_piano_dac_dai), + .controls = allo_piano_controls, + .num_controls = ARRAY_SIZE(allo_piano_controls), +}; + +static int snd_allo_piano_dac_probe(struct platform_device *pdev) +{ + int ret = 0, i = 0; + struct snd_soc_card *card = &snd_allo_piano_dac; + + card->dev = &pdev->dev; + snd_allo_piano_dac.dev = &pdev->dev; + + if (pdev->dev.of_node) { + struct device_node *i2s_node; + struct snd_soc_dai_link *dai; + + dai = &snd_allo_piano_dac_dai[0]; + i2s_node = of_parse_phandle(pdev->dev.of_node, + "i2s-controller", 0); + if (i2s_node) { + for (i = 0; i < card->num_links; i++) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + } + } + digital_gain_0db_limit = + !of_property_read_bool(pdev->dev.of_node, + "allo,24db_digital_gain"); + + allo_piano_2_1_codecs[0].of_node = + of_parse_phandle(pdev->dev.of_node, "audio-codec", 0); + if (!allo_piano_2_1_codecs[0].of_node) { + dev_err(&pdev->dev, + "Property 'audio-codec' missing or invalid\n"); + return -EINVAL; + } + + allo_piano_2_1_codecs[1].of_node = + of_parse_phandle(pdev->dev.of_node, "audio-codec", 1); + if (!allo_piano_2_1_codecs[1].of_node) { + dev_err(&pdev->dev, + "Property 'audio-codec' missing or invalid\n"); + return -EINVAL; + } + } + + ret = snd_soc_register_card(&snd_allo_piano_dac); + if (ret < 0) + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", + ret); + + return ret; +} + +static int snd_allo_piano_dac_remove(struct platform_device *pdev) +{ + return snd_soc_unregister_card(&snd_allo_piano_dac); +} + +static const struct of_device_id snd_allo_piano_dac_of_match[] = { + { .compatible = "allo,piano-dac-plus", }, + { /* sentinel */ }, +}; + +MODULE_DEVICE_TABLE(of, snd_allo_piano_dac_of_match); + +static struct platform_driver snd_allo_piano_dac_driver = { + .driver = { + .name = "snd-allo-piano-dac-plus", + .owner = THIS_MODULE, + .of_match_table = snd_allo_piano_dac_of_match, + }, + .probe = snd_allo_piano_dac_probe, + .remove = snd_allo_piano_dac_remove, +}; + +module_platform_driver(snd_allo_piano_dac_driver); + +MODULE_AUTHOR("Baswaraj K "); +MODULE_DESCRIPTION("ALSA ASoC Machine Driver for Allo Piano DAC Plus"); +MODULE_LICENSE("GPL v2"); From 4ef968342060e85928c03805c3d746039378edc2 Mon Sep 17 00:00:00 2001 From: BabuSubashChandar Date: Tue, 28 Mar 2017 20:04:42 +0530 Subject: [PATCH 135/165] Add support for Allo Boss DAC add-on board for Raspberry Pi. (#1924) Signed-off-by: Baswaraj K Reviewed-by: Deepak Reviewed-by: BabuSubashChandar --- arch/arm/boot/dts/overlays/Makefile | 1 + arch/arm/boot/dts/overlays/README | 24 ++ .../allo-boss-dac-pcm512x-audio-overlay.dts | 58 ++++ drivers/clk/Makefile | 1 + drivers/clk/clk-allo-dac-45Mhz.c | 161 +++++++++ sound/soc/bcm/Kconfig | 8 + sound/soc/bcm/Makefile | 2 + sound/soc/bcm/allo-boss-dac.c | 374 +++++++++++++++++++++ 8 files changed, 629 insertions(+) create mode 100644 arch/arm/boot/dts/overlays/allo-boss-dac-pcm512x-audio-overlay.dts create mode 100644 drivers/clk/clk-allo-dac-45Mhz.c create mode 100644 sound/soc/bcm/allo-boss-dac.c diff --git a/arch/arm/boot/dts/overlays/Makefile b/arch/arm/boot/dts/overlays/Makefile index 73826c74d2cfb58cac1a72e523ce00b021411d16..b64dd7ac0630b2b525809a9f5221420f34a58ac9 100644 --- a/arch/arm/boot/dts/overlays/Makefile +++ b/arch/arm/boot/dts/overlays/Makefile @@ -7,6 +7,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \ ads1115.dtbo \ ads7846.dtbo \ akkordion-iqdacplus.dtbo \ + allo-boss-dac-pcm512x-audio.dtbo \ allo-piano-dac-pcm512x-audio.dtbo \ allo-piano-dac-plus-pcm512x-audio.dtbo \ at86rf233.dtbo \ diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README index 1e3420e80d620f3c376ffb7c905e7aba7f63d709..c9e954253a6318dbd2605b93026c04974b3271bd 100644 --- a/arch/arm/boot/dts/overlays/README +++ b/arch/arm/boot/dts/overlays/README @@ -263,6 +263,30 @@ Params: 24db_digital_gain Allow gain to be applied via the PCM512x codec that does not result in clipping/distortion!) +Name: allo-boss-dac-pcm512x-audio +Info: Configures the Allo Boss DAC audio cards. +Load: dtoverlay=allo-boss-dac-pcm512x-audio, +Params: 24db_digital_gain Allow gain to be applied via the PCM512x codec + Digital volume control. Enable with + "dtoverlay=allo-boss-dac-pcm512x-audio, + 24db_digital_gain" + (The default behaviour is that the Digital + volume control is limited to a maximum of + 0dB. ie. it can attenuate but not provide + gain. For most users, this will be desired + as it will prevent clipping. By appending + the 24db_digital_gain parameter, the Digital + volume control will allow up to 24dB of + gain. If this parameter is enabled, it is the + responsibility of the user to ensure that + the Digital volume control is set to a value + that does not result in clipping/distortion!) + slave Force Boss DAC into slave mode, using Pi a + master for bit clock and frame clock. Enable + with "dtoverlay=allo-boss-dac-pcm512x-audio, + slave" + + Name: allo-piano-dac-pcm512x-audio Info: Configures the Allo Piano DAC (2.0/2.1) audio cards. (NB. This initial support is for 2.0 channel audio ONLY! ie. stereo. diff --git a/arch/arm/boot/dts/overlays/allo-boss-dac-pcm512x-audio-overlay.dts b/arch/arm/boot/dts/overlays/allo-boss-dac-pcm512x-audio-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..7df335a3d82f7043d31ba69331cdf3185264d78c --- /dev/null +++ b/arch/arm/boot/dts/overlays/allo-boss-dac-pcm512x-audio-overlay.dts @@ -0,0 +1,58 @@ +/* + * Definitions for Allo Boss DAC board + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target-path = "/clocks"; + __overlay__ { + boss_osc: boss_osc { + compatible = "allo,dac-clk"; + #clock-cells = <0>; + }; + }; + }; + + fragment@1 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@2 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + pcm5122@4d { + #sound-dai-cells = <0>; + compatible = "ti,pcm5122"; + clocks = <&boss_osc>; + reg = <0x4d>; + status = "okay"; + }; + }; + }; + + fragment@3 { + target = <&sound>; + boss_dac: __overlay__ { + compatible = "allo,boss-dac"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; + + __overrides__ { + 24db_digital_gain = <&boss_dac>,"allo,24db_digital_gain?"; + slave = <&boss_dac>,"allo,slave?"; + }; +}; diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index c901caf8988417053d19916172cf8eb8468a59fd..50f4737abdb4fd428b9cae26a1482f7be58e03cb 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile @@ -17,6 +17,7 @@ endif # hardware specific clock types # please keep this section sorted lexicographically by file path name +obj-$(CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC) += clk-allo-dac-45Mhz.o obj-$(CONFIG_MACH_ASM9260) += clk-asm9260.o obj-$(CONFIG_COMMON_CLK_AXI_CLKGEN) += clk-axi-clkgen.o obj-$(CONFIG_ARCH_AXXIA) += clk-axm5516.o diff --git a/drivers/clk/clk-allo-dac-45Mhz.c b/drivers/clk/clk-allo-dac-45Mhz.c new file mode 100644 index 0000000000000000000000000000000000000000..d5e9e5b3495cfd2e94fae256f11bc6e0d1f470c6 --- /dev/null +++ b/drivers/clk/clk-allo-dac-45Mhz.c @@ -0,0 +1,161 @@ +/* + * Clock Driver for Allo DAC + * + * Author: Baswaraj K + * Copyright 2016 + * based on code by Stuart MacLean + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include + +/* Clock rate of CLK44EN attached to GPIO6 pin */ +#define CLK_44EN_RATE 45158400UL +/* Clock rate of CLK48EN attached to GPIO3 pin */ +#define CLK_48EN_RATE 49152000UL + +/** + * struct allo_dac_clk - Common struct to the Allo DAC + * @hw: clk_hw for the common clk framework + * @mode: 0 => CLK44EN, 1 => CLK48EN + */ +struct clk_allo_hw { + struct clk_hw hw; + uint8_t mode; +}; + +#define to_allo_clk(_hw) container_of(_hw, struct clk_allo_hw, hw) + +static const struct of_device_id clk_allo_dac_dt_ids[] = { + { .compatible = "allo,dac-clk",}, + { } +}; +MODULE_DEVICE_TABLE(of, clk_allo_dac_dt_ids); + +static unsigned long clk_allo_dac_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + return (to_allo_clk(hw)->mode == 0) ? CLK_44EN_RATE : + CLK_48EN_RATE; +} + +static long clk_allo_dac_round_rate(struct clk_hw *hw, + unsigned long rate, unsigned long *parent_rate) +{ + long actual_rate; + + if (rate <= CLK_44EN_RATE) { + actual_rate = (long)CLK_44EN_RATE; + } else if (rate >= CLK_48EN_RATE) { + actual_rate = (long)CLK_48EN_RATE; + } else { + long diff44Rate = (long)(rate - CLK_44EN_RATE); + long diff48Rate = (long)(CLK_48EN_RATE - rate); + + if (diff44Rate < diff48Rate) + actual_rate = (long)CLK_44EN_RATE; + else + actual_rate = (long)CLK_48EN_RATE; + } + return actual_rate; +} + + +static int clk_allo_dac_set_rate(struct clk_hw *hw, + unsigned long rate, unsigned long parent_rate) +{ + unsigned long actual_rate; + struct clk_allo_hw *clk = to_allo_clk(hw); + + actual_rate = (unsigned long)clk_allo_dac_round_rate(hw, rate, + &parent_rate); + clk->mode = (actual_rate == CLK_44EN_RATE) ? 0 : 1; + return 0; +} + + +const struct clk_ops clk_allo_dac_rate_ops = { + .recalc_rate = clk_allo_dac_recalc_rate, + .round_rate = clk_allo_dac_round_rate, + .set_rate = clk_allo_dac_set_rate, +}; + +static int clk_allo_dac_probe(struct platform_device *pdev) +{ + int ret; + struct clk_allo_hw *proclk; + struct clk *clk; + struct device *dev; + struct clk_init_data init; + + dev = &pdev->dev; + + proclk = kzalloc(sizeof(struct clk_allo_hw), GFP_KERNEL); + if (!proclk) + return -ENOMEM; + + init.name = "clk-allo-dac"; + init.ops = &clk_allo_dac_rate_ops; + init.flags = CLK_IS_ROOT | CLK_IS_BASIC; + init.parent_names = NULL; + init.num_parents = 0; + + proclk->mode = 0; + proclk->hw.init = &init; + + clk = devm_clk_register(dev, &proclk->hw); + if (!IS_ERR(clk)) { + ret = of_clk_add_provider(dev->of_node, of_clk_src_simple_get, + clk); + } else { + dev_err(dev, "Fail to register clock driver\n"); + kfree(proclk); + ret = PTR_ERR(clk); + } + return ret; +} + +static int clk_allo_dac_remove(struct platform_device *pdev) +{ + of_clk_del_provider(pdev->dev.of_node); + return 0; +} + +static struct platform_driver clk_allo_dac_driver = { + .probe = clk_allo_dac_probe, + .remove = clk_allo_dac_remove, + .driver = { + .name = "clk-allo-dac", + .of_match_table = clk_allo_dac_dt_ids, + }, +}; + +static int __init clk_allo_dac_init(void) +{ + return platform_driver_register(&clk_allo_dac_driver); +} +core_initcall(clk_allo_dac_init); + +static void __exit clk_allo_dac_exit(void) +{ + platform_driver_unregister(&clk_allo_dac_driver); +} +module_exit(clk_allo_dac_exit); + +MODULE_DESCRIPTION("Allo DAC clock driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:clk-allo-dac"); diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index ee59713344b3d0385c4d659d6dab3da8c2a60633..be474a58151889f145ca5aeb789ea6c116c4fd44 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -176,6 +176,14 @@ config SND_BCM2708_SOC_FE_PI_AUDIO help Say Y or M if you want to add support for Fe-Pi-Audio. +config SND_BCM2708_SOC_ALLO_BOSS_DAC + tristate "Support for allo Boss DAC" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_PCM512x_I2C + help + Say Y or M if you want to add support for allo Boss DAC. + + config SND_PISOUND tristate "Support for Blokas Labs pisound" depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index 54b4111ad820b3f8086867ca2ce86d5339fca93e..72e1620fa4038035804cf3b2a09c6b12e7ae0fe1 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -31,6 +31,7 @@ snd-soc-audioinjector-octo-soundcard-objs := audioinjector-octo-soundcard.o snd-soc-digidac1-soundcard-objs := digidac1-soundcard.o snd-soc-dionaudio-loco-objs := dionaudio_loco.o snd-soc-dionaudio-loco-v2-objs := dionaudio_loco-v2.o +snd-soc-allo-boss-dac-objs := allo-boss-dac.o snd-soc-allo-piano-dac-objs := allo-piano-dac.o snd-soc-allo-piano-dac-plus-objs := allo-piano-dac-plus.o snd-soc-pisound-objs := pisound.o @@ -56,6 +57,7 @@ obj-$(CONFIG_SND_AUDIOINJECTOR_OCTO_SOUNDCARD) += snd-soc-audioinjector-octo-sou obj-$(CONFIG_SND_DIGIDAC1_SOUNDCARD) += snd-soc-digidac1-soundcard.o obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO) += snd-soc-dionaudio-loco.o obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO_V2) += snd-soc-dionaudio-loco-v2.o +obj-$(CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC) += snd-soc-allo-boss-dac.o obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC) += snd-soc-allo-piano-dac.o obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS) += snd-soc-allo-piano-dac-plus.o obj-$(CONFIG_SND_PISOUND) += snd-soc-pisound.o diff --git a/sound/soc/bcm/allo-boss-dac.c b/sound/soc/bcm/allo-boss-dac.c new file mode 100644 index 0000000000000000000000000000000000000000..c080e31065d99ab309ab3bdf41a44adfdd8f8039 --- /dev/null +++ b/sound/soc/bcm/allo-boss-dac.c @@ -0,0 +1,374 @@ +/* + * ALSA ASoC Machine Driver for Allo Boss DAC + * + * Author: Baswaraj K + * Copyright 2016 + * based on code by Daniel Matuschek, Stuart MacLean + * based on code by Florian Meier + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include + +#include +#include +#include +#include +#include "../codecs/pcm512x.h" + +#define ALLO_BOSS_NOCLOCK 0 +#define ALLO_BOSS_CLK44EN 1 +#define ALLO_BOSS_CLK48EN 2 + +struct pcm512x_priv { + struct regmap *regmap; + struct clk *sclk; +}; + +/* Clock rate of CLK44EN attached to GPIO6 pin */ +#define CLK_44EN_RATE 45158400UL +/* Clock rate of CLK48EN attached to GPIO3 pin */ +#define CLK_48EN_RATE 49152000UL + +static bool slave; +static bool snd_soc_allo_boss_master; +static bool digital_gain_0db_limit = true; + +static void snd_allo_boss_select_clk(struct snd_soc_codec *codec, + int clk_id) +{ + switch (clk_id) { + case ALLO_BOSS_NOCLOCK: + snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x24, 0x00); + break; + case ALLO_BOSS_CLK44EN: + snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x24, 0x20); + break; + case ALLO_BOSS_CLK48EN: + snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x24, 0x04); + break; + } +} + +static void snd_allo_boss_clk_gpio(struct snd_soc_codec *codec) +{ + snd_soc_update_bits(codec, PCM512x_GPIO_EN, 0x24, 0x24); + snd_soc_update_bits(codec, PCM512x_GPIO_OUTPUT_3, 0x0f, 0x02); + snd_soc_update_bits(codec, PCM512x_GPIO_OUTPUT_6, 0x0f, 0x02); +} + +static bool snd_allo_boss_is_sclk(struct snd_soc_codec *codec) +{ + int sck; + + sck = snd_soc_read(codec, PCM512x_RATE_DET_4); + return (!(sck & 0x40)); +} + +static bool snd_allo_boss_is_sclk_sleep( + struct snd_soc_codec *codec) +{ + msleep(2); + return snd_allo_boss_is_sclk(codec); +} + +static bool snd_allo_boss_is_master_card(struct snd_soc_codec *codec) +{ + bool isClk44EN, isClk48En, isNoClk; + + snd_allo_boss_clk_gpio(codec); + + snd_allo_boss_select_clk(codec, ALLO_BOSS_CLK44EN); + isClk44EN = snd_allo_boss_is_sclk_sleep(codec); + + snd_allo_boss_select_clk(codec, ALLO_BOSS_NOCLOCK); + isNoClk = snd_allo_boss_is_sclk_sleep(codec); + + snd_allo_boss_select_clk(codec, ALLO_BOSS_CLK48EN); + isClk48En = snd_allo_boss_is_sclk_sleep(codec); + + return (isClk44EN && isClk48En && !isNoClk); +} + +static int snd_allo_boss_clk_for_rate(int sample_rate) +{ + int type; + + switch (sample_rate) { + case 11025: + case 22050: + case 44100: + case 88200: + case 176400: + type = ALLO_BOSS_CLK44EN; + break; + default: + type = ALLO_BOSS_CLK48EN; + break; + } + return type; +} + +static void snd_allo_boss_set_sclk(struct snd_soc_codec *codec, + int sample_rate) +{ + struct pcm512x_priv *pcm512x = snd_soc_codec_get_drvdata(codec); + + if (!IS_ERR(pcm512x->sclk)) { + int ctype; + + ctype = snd_allo_boss_clk_for_rate(sample_rate); + clk_set_rate(pcm512x->sclk, (ctype == ALLO_BOSS_CLK44EN) + ? CLK_44EN_RATE : CLK_48EN_RATE); + snd_allo_boss_select_clk(codec, ctype); + } +} + +static int snd_allo_boss_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_codec *codec = rtd->codec; + struct pcm512x_priv *priv; + + if (slave) + snd_soc_allo_boss_master = false; + else + snd_soc_allo_boss_master = + snd_allo_boss_is_master_card(codec); + + if (snd_soc_allo_boss_master) { + struct snd_soc_dai_link *dai = rtd->dai_link; + + dai->name = "BossDAC"; + dai->stream_name = "BossDAC"; + dai->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF + | SND_SOC_DAIFMT_CBM_CFM; + + snd_soc_update_bits(codec, PCM512x_BCLK_LRCLK_CFG, 0x31, 0x11); + snd_soc_update_bits(codec, PCM512x_MASTER_MODE, 0x03, 0x03); + snd_soc_update_bits(codec, PCM512x_MASTER_CLKDIV_2, 0x7f, 63); + } else { + priv = snd_soc_codec_get_drvdata(codec); + priv->sclk = ERR_PTR(-ENOENT); + } + + snd_soc_update_bits(codec, PCM512x_GPIO_EN, 0x08, 0x08); + snd_soc_update_bits(codec, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02); + snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x08, 0x08); + + if (digital_gain_0db_limit) { + int ret; + struct snd_soc_card *card = rtd->card; + + ret = snd_soc_limit_volume(card, "Digital Playback Volume", + 207); + if (ret < 0) + dev_warn(card->dev, "Failed to set volume limit: %d\n", + ret); + } + + return 0; +} + +static int snd_allo_boss_update_rate_den( + struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + struct pcm512x_priv *pcm512x = snd_soc_codec_get_drvdata(codec); + struct snd_ratnum *rats_no_pll; + unsigned int num = 0, den = 0; + int err; + + rats_no_pll = devm_kzalloc(rtd->dev, sizeof(*rats_no_pll), GFP_KERNEL); + if (!rats_no_pll) + return -ENOMEM; + + rats_no_pll->num = clk_get_rate(pcm512x->sclk) / 64; + rats_no_pll->den_min = 1; + rats_no_pll->den_max = 128; + rats_no_pll->den_step = 1; + + err = snd_interval_ratnum(hw_param_interval(params, + SNDRV_PCM_HW_PARAM_RATE), 1, rats_no_pll, &num, &den); + if (err >= 0 && den) { + params->rate_num = num; + params->rate_den = den; + } + + devm_kfree(rtd->dev, rats_no_pll); + return 0; +} + +static int snd_allo_boss_set_bclk_ratio_pro( + struct snd_soc_dai *cpu_dai, struct snd_pcm_hw_params *params) +{ + int bratio = snd_pcm_format_physical_width(params_format(params)) + * params_channels(params); + return snd_soc_dai_set_bclk_ratio(cpu_dai, bratio); +} + +static int snd_allo_boss_hw_params( + struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) +{ + int ret = 0; + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + unsigned int sample_bits = + snd_pcm_format_physical_width(params_format(params)); + + if (snd_soc_allo_boss_master) { + struct snd_soc_codec *codec = rtd->codec; + + snd_allo_boss_set_sclk(codec, + params_rate(params)); + + ret = snd_allo_boss_set_bclk_ratio_pro(cpu_dai, + params); + if (!ret) + ret = snd_allo_boss_update_rate_den( + substream, params); + } else { + if (snd_allo_boss_is_sclk(rtd->codec)) { + snd_soc_update_bits(rtd->codec, PCM512x_PLL_EN, + PCM512x_PLLE, 0x01); + snd_soc_update_bits(rtd->codec, PCM512x_PLL_REF, + PCM512x_SREF, PCM512x_SREF_BCK); + dev_dbg(rtd->codec->dev, + "Setting BCLK as input clock and Enable PLL\n"); + } else { + snd_soc_update_bits(rtd->codec, PCM512x_PLL_EN, + PCM512x_PLLE, 0x00); + snd_soc_update_bits(rtd->codec, PCM512x_PLL_REF, + PCM512x_SREF, PCM512x_SREF_SCK); + + dev_dbg(rtd->codec->dev, + "Setting SCLK as input clock and disabled PLL\n"); + } + + ret = snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2); + } + return ret; +} + +static int snd_allo_boss_startup( + struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + + snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x08, 0x08); + return 0; +} + +static void snd_allo_boss_shutdown( + struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + + snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x08, 0x00); +} + +/* machine stream operations */ +static struct snd_soc_ops snd_allo_boss_ops = { + .hw_params = snd_allo_boss_hw_params, + .startup = snd_allo_boss_startup, + .shutdown = snd_allo_boss_shutdown, +}; + +static struct snd_soc_dai_link snd_allo_boss_dai[] = { +{ + .name = "Boss DAC", + .stream_name = "Boss DAC HiFi", + .cpu_dai_name = "bcm2708-i2s.0", + .codec_dai_name = "pcm512x-hifi", + .platform_name = "bcm2708-i2s.0", + .codec_name = "pcm512x.1-004d", + .dai_fmt = SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + .ops = &snd_allo_boss_ops, + .init = snd_allo_boss_init, +}, +}; + +/* audio machine driver */ +static struct snd_soc_card snd_allo_boss = { + .name = "BossDAC", + .owner = THIS_MODULE, + .dai_link = snd_allo_boss_dai, + .num_links = ARRAY_SIZE(snd_allo_boss_dai), +}; + +static int snd_allo_boss_probe(struct platform_device *pdev) +{ + int ret = 0; + + snd_allo_boss.dev = &pdev->dev; + + if (pdev->dev.of_node) { + struct device_node *i2s_node; + struct snd_soc_dai_link *dai; + + dai = &snd_allo_boss_dai[0]; + i2s_node = of_parse_phandle(pdev->dev.of_node, + "i2s-controller", 0); + + if (i2s_node) { + dai->cpu_dai_name = NULL; + dai->cpu_of_node = i2s_node; + dai->platform_name = NULL; + dai->platform_of_node = i2s_node; + } + + digital_gain_0db_limit = !of_property_read_bool( + pdev->dev.of_node, "allo,24db_digital_gain"); + slave = of_property_read_bool(pdev->dev.of_node, + "allo,slave"); + } + + ret = snd_soc_register_card(&snd_allo_boss); + if (ret) + dev_err(&pdev->dev, + "snd_soc_register_card() failed: %d\n", ret); + + return ret; +} + +static int snd_allo_boss_remove(struct platform_device *pdev) +{ + return snd_soc_unregister_card(&snd_allo_boss); +} + +static const struct of_device_id snd_allo_boss_of_match[] = { + { .compatible = "allo,boss-dac", }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, snd_allo_boss_of_match); + +static struct platform_driver snd_allo_boss_driver = { + .driver = { + .name = "snd-allo-boss-dac", + .owner = THIS_MODULE, + .of_match_table = snd_allo_boss_of_match, + }, + .probe = snd_allo_boss_probe, + .remove = snd_allo_boss_remove, +}; + +module_platform_driver(snd_allo_boss_driver); + +MODULE_AUTHOR("Baswaraj K "); +MODULE_DESCRIPTION("ALSA ASoC Machine Driver for Allo Boss DAC"); +MODULE_LICENSE("GPL v2"); From 2a42e7fae332b63d97c8bd47367d0398116eeee7 Mon Sep 17 00:00:00 2001 From: BabuSubashChandar C Date: Thu, 30 Mar 2017 20:17:27 +0530 Subject: [PATCH 136/165] Add support for new clock rate and mute gpios. Signed-off-by: Baswaraj K Reviewed-by: Deepak Reviewed-by: BabuSubashChandar --- .../allo-boss-dac-pcm512x-audio-overlay.dts | 1 + arch/arm/configs/bcm2709_defconfig | 1 + drivers/clk/Makefile | 2 +- drivers/clk/clk-allo-dac-45Mhz.c | 161 --------------------- drivers/clk/clk-allo-dac.c | 161 +++++++++++++++++++++ sound/soc/bcm/Kconfig | 4 +- sound/soc/bcm/allo-boss-dac.c | 145 +++++++++++++++---- 7 files changed, 282 insertions(+), 193 deletions(-) delete mode 100644 drivers/clk/clk-allo-dac-45Mhz.c create mode 100644 drivers/clk/clk-allo-dac.c diff --git a/arch/arm/boot/dts/overlays/allo-boss-dac-pcm512x-audio-overlay.dts b/arch/arm/boot/dts/overlays/allo-boss-dac-pcm512x-audio-overlay.dts index 7df335a3d82f7043d31ba69331cdf3185264d78c..ac1cfe093d9aa8a77ef25cc62a9d8100d81ca684 100644 --- a/arch/arm/boot/dts/overlays/allo-boss-dac-pcm512x-audio-overlay.dts +++ b/arch/arm/boot/dts/overlays/allo-boss-dac-pcm512x-audio-overlay.dts @@ -47,6 +47,7 @@ boss_dac: __overlay__ { compatible = "allo,boss-dac"; i2s-controller = <&i2s>; + mute-gpios = <&gpio 6 1>; status = "okay"; }; }; diff --git a/arch/arm/configs/bcm2709_defconfig b/arch/arm/configs/bcm2709_defconfig index f68fc97d2a9c28154880b5d55ce90b0b0974acc6..f8c97a20611f3f6688a0de4f5c0c167a0fa0bcd6 100644 --- a/arch/arm/configs/bcm2709_defconfig +++ b/arch/arm/configs/bcm2709_defconfig @@ -882,6 +882,7 @@ CONFIG_SND_AUDIOINJECTOR_OCTO_SOUNDCARD=m CONFIG_SND_DIGIDAC1_SOUNDCARD=m CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO=m CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO_V2=m +CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC=m CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC=m CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO=m CONFIG_SND_PISOUND=m diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index 50f4737abdb4fd428b9cae26a1482f7be58e03cb..35c943df626731560adbd49f489aaf3b4cfa11bf 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile @@ -17,7 +17,7 @@ endif # hardware specific clock types # please keep this section sorted lexicographically by file path name -obj-$(CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC) += clk-allo-dac-45Mhz.o +obj-$(CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC) += clk-allo-dac.o obj-$(CONFIG_MACH_ASM9260) += clk-asm9260.o obj-$(CONFIG_COMMON_CLK_AXI_CLKGEN) += clk-axi-clkgen.o obj-$(CONFIG_ARCH_AXXIA) += clk-axm5516.o diff --git a/drivers/clk/clk-allo-dac-45Mhz.c b/drivers/clk/clk-allo-dac-45Mhz.c deleted file mode 100644 index d5e9e5b3495cfd2e94fae256f11bc6e0d1f470c6..0000000000000000000000000000000000000000 --- a/drivers/clk/clk-allo-dac-45Mhz.c +++ /dev/null @@ -1,161 +0,0 @@ -/* - * Clock Driver for Allo DAC - * - * Author: Baswaraj K - * Copyright 2016 - * based on code by Stuart MacLean - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - */ - -#include -#include -#include -#include -#include -#include -#include - -/* Clock rate of CLK44EN attached to GPIO6 pin */ -#define CLK_44EN_RATE 45158400UL -/* Clock rate of CLK48EN attached to GPIO3 pin */ -#define CLK_48EN_RATE 49152000UL - -/** - * struct allo_dac_clk - Common struct to the Allo DAC - * @hw: clk_hw for the common clk framework - * @mode: 0 => CLK44EN, 1 => CLK48EN - */ -struct clk_allo_hw { - struct clk_hw hw; - uint8_t mode; -}; - -#define to_allo_clk(_hw) container_of(_hw, struct clk_allo_hw, hw) - -static const struct of_device_id clk_allo_dac_dt_ids[] = { - { .compatible = "allo,dac-clk",}, - { } -}; -MODULE_DEVICE_TABLE(of, clk_allo_dac_dt_ids); - -static unsigned long clk_allo_dac_recalc_rate(struct clk_hw *hw, - unsigned long parent_rate) -{ - return (to_allo_clk(hw)->mode == 0) ? CLK_44EN_RATE : - CLK_48EN_RATE; -} - -static long clk_allo_dac_round_rate(struct clk_hw *hw, - unsigned long rate, unsigned long *parent_rate) -{ - long actual_rate; - - if (rate <= CLK_44EN_RATE) { - actual_rate = (long)CLK_44EN_RATE; - } else if (rate >= CLK_48EN_RATE) { - actual_rate = (long)CLK_48EN_RATE; - } else { - long diff44Rate = (long)(rate - CLK_44EN_RATE); - long diff48Rate = (long)(CLK_48EN_RATE - rate); - - if (diff44Rate < diff48Rate) - actual_rate = (long)CLK_44EN_RATE; - else - actual_rate = (long)CLK_48EN_RATE; - } - return actual_rate; -} - - -static int clk_allo_dac_set_rate(struct clk_hw *hw, - unsigned long rate, unsigned long parent_rate) -{ - unsigned long actual_rate; - struct clk_allo_hw *clk = to_allo_clk(hw); - - actual_rate = (unsigned long)clk_allo_dac_round_rate(hw, rate, - &parent_rate); - clk->mode = (actual_rate == CLK_44EN_RATE) ? 0 : 1; - return 0; -} - - -const struct clk_ops clk_allo_dac_rate_ops = { - .recalc_rate = clk_allo_dac_recalc_rate, - .round_rate = clk_allo_dac_round_rate, - .set_rate = clk_allo_dac_set_rate, -}; - -static int clk_allo_dac_probe(struct platform_device *pdev) -{ - int ret; - struct clk_allo_hw *proclk; - struct clk *clk; - struct device *dev; - struct clk_init_data init; - - dev = &pdev->dev; - - proclk = kzalloc(sizeof(struct clk_allo_hw), GFP_KERNEL); - if (!proclk) - return -ENOMEM; - - init.name = "clk-allo-dac"; - init.ops = &clk_allo_dac_rate_ops; - init.flags = CLK_IS_ROOT | CLK_IS_BASIC; - init.parent_names = NULL; - init.num_parents = 0; - - proclk->mode = 0; - proclk->hw.init = &init; - - clk = devm_clk_register(dev, &proclk->hw); - if (!IS_ERR(clk)) { - ret = of_clk_add_provider(dev->of_node, of_clk_src_simple_get, - clk); - } else { - dev_err(dev, "Fail to register clock driver\n"); - kfree(proclk); - ret = PTR_ERR(clk); - } - return ret; -} - -static int clk_allo_dac_remove(struct platform_device *pdev) -{ - of_clk_del_provider(pdev->dev.of_node); - return 0; -} - -static struct platform_driver clk_allo_dac_driver = { - .probe = clk_allo_dac_probe, - .remove = clk_allo_dac_remove, - .driver = { - .name = "clk-allo-dac", - .of_match_table = clk_allo_dac_dt_ids, - }, -}; - -static int __init clk_allo_dac_init(void) -{ - return platform_driver_register(&clk_allo_dac_driver); -} -core_initcall(clk_allo_dac_init); - -static void __exit clk_allo_dac_exit(void) -{ - platform_driver_unregister(&clk_allo_dac_driver); -} -module_exit(clk_allo_dac_exit); - -MODULE_DESCRIPTION("Allo DAC clock driver"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:clk-allo-dac"); diff --git a/drivers/clk/clk-allo-dac.c b/drivers/clk/clk-allo-dac.c new file mode 100644 index 0000000000000000000000000000000000000000..0baf821d6947ebb757c8ea4594f6c1b04b4e10dd --- /dev/null +++ b/drivers/clk/clk-allo-dac.c @@ -0,0 +1,161 @@ +/* + * Clock Driver for Allo DAC + * + * Author: Baswaraj K + * Copyright 2016 + * based on code by Stuart MacLean + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include + +/* Clock rate of CLK44EN attached to GPIO6 pin */ +#define CLK_44EN_RATE 45158400UL +/* Clock rate of CLK48EN attached to GPIO3 pin */ +#define CLK_48EN_RATE 49152000UL + +/** + * struct allo_dac_clk - Common struct to the Allo DAC + * @hw: clk_hw for the common clk framework + * @mode: 0 => CLK44EN, 1 => CLK48EN + */ +struct clk_allo_hw { + struct clk_hw hw; + uint8_t mode; +}; + +#define to_allo_clk(_hw) container_of(_hw, struct clk_allo_hw, hw) + +static const struct of_device_id clk_allo_dac_dt_ids[] = { + { .compatible = "allo,dac-clk",}, + { } +}; +MODULE_DEVICE_TABLE(of, clk_allo_dac_dt_ids); + +static unsigned long clk_allo_dac_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + return (to_allo_clk(hw)->mode == 0) ? CLK_44EN_RATE : + CLK_48EN_RATE; +} + +static long clk_allo_dac_round_rate(struct clk_hw *hw, + unsigned long rate, unsigned long *parent_rate) +{ + long actual_rate; + + if (rate <= CLK_44EN_RATE) { + actual_rate = (long)CLK_44EN_RATE; + } else if (rate >= CLK_48EN_RATE) { + actual_rate = (long)CLK_48EN_RATE; + } else { + long diff44Rate = (long)(rate - CLK_44EN_RATE); + long diff48Rate = (long)(CLK_48EN_RATE - rate); + + if (diff44Rate < diff48Rate) + actual_rate = (long)CLK_44EN_RATE; + else + actual_rate = (long)CLK_48EN_RATE; + } + return actual_rate; +} + + +static int clk_allo_dac_set_rate(struct clk_hw *hw, + unsigned long rate, unsigned long parent_rate) +{ + unsigned long actual_rate; + struct clk_allo_hw *clk = to_allo_clk(hw); + + actual_rate = (unsigned long)clk_allo_dac_round_rate(hw, rate, + &parent_rate); + clk->mode = (actual_rate == CLK_44EN_RATE) ? 0 : 1; + return 0; +} + + +const struct clk_ops clk_allo_dac_rate_ops = { + .recalc_rate = clk_allo_dac_recalc_rate, + .round_rate = clk_allo_dac_round_rate, + .set_rate = clk_allo_dac_set_rate, +}; + +static int clk_allo_dac_probe(struct platform_device *pdev) +{ + int ret; + struct clk_allo_hw *proclk; + struct clk *clk; + struct device *dev; + struct clk_init_data init; + + dev = &pdev->dev; + + proclk = kzalloc(sizeof(struct clk_allo_hw), GFP_KERNEL); + if (!proclk) + return -ENOMEM; + + init.name = "clk-allo-dac"; + init.ops = &clk_allo_dac_rate_ops; + init.flags = CLK_IS_BASIC; + init.parent_names = NULL; + init.num_parents = 0; + + proclk->mode = 0; + proclk->hw.init = &init; + + clk = devm_clk_register(dev, &proclk->hw); + if (!IS_ERR(clk)) { + ret = of_clk_add_provider(dev->of_node, of_clk_src_simple_get, + clk); + } else { + dev_err(dev, "Fail to register clock driver\n"); + kfree(proclk); + ret = PTR_ERR(clk); + } + return ret; +} + +static int clk_allo_dac_remove(struct platform_device *pdev) +{ + of_clk_del_provider(pdev->dev.of_node); + return 0; +} + +static struct platform_driver clk_allo_dac_driver = { + .probe = clk_allo_dac_probe, + .remove = clk_allo_dac_remove, + .driver = { + .name = "clk-allo-dac", + .of_match_table = clk_allo_dac_dt_ids, + }, +}; + +static int __init clk_allo_dac_init(void) +{ + return platform_driver_register(&clk_allo_dac_driver); +} +core_initcall(clk_allo_dac_init); + +static void __exit clk_allo_dac_exit(void) +{ + platform_driver_unregister(&clk_allo_dac_driver); +} +module_exit(clk_allo_dac_exit); + +MODULE_DESCRIPTION("Allo DAC clock driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:clk-allo-dac"); diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index be474a58151889f145ca5aeb789ea6c116c4fd44..c472f67b6167fecbdc099c1ceaa96b10555e8039 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -177,11 +177,11 @@ config SND_BCM2708_SOC_FE_PI_AUDIO Say Y or M if you want to add support for Fe-Pi-Audio. config SND_BCM2708_SOC_ALLO_BOSS_DAC - tristate "Support for allo Boss DAC" + tristate "Support for Allo Boss DAC" depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S select SND_SOC_PCM512x_I2C help - Say Y or M if you want to add support for allo Boss DAC. + Say Y or M if you want to add support for Allo Boss DAC. config SND_PISOUND diff --git a/sound/soc/bcm/allo-boss-dac.c b/sound/soc/bcm/allo-boss-dac.c index c080e31065d99ab309ab3bdf41a44adfdd8f8039..203ab76c7045b081578e23bda1099dd103d11154 100644 --- a/sound/soc/bcm/allo-boss-dac.c +++ b/sound/soc/bcm/allo-boss-dac.c @@ -2,8 +2,9 @@ * ALSA ASoC Machine Driver for Allo Boss DAC * * Author: Baswaraj K - * Copyright 2016 - * based on code by Daniel Matuschek, Stuart MacLean + * Copyright 2017 + * based on code by Daniel Matuschek, + * Stuart MacLean * based on code by Florian Meier * * This program is free software; you can redistribute it and/or @@ -17,6 +18,7 @@ */ #include +#include #include #include #include @@ -36,6 +38,8 @@ struct pcm512x_priv { struct clk *sclk; }; +static struct gpio_desc *mute_gpio; + /* Clock rate of CLK44EN attached to GPIO6 pin */ #define CLK_44EN_RATE 45158400UL /* Clock rate of CLK48EN attached to GPIO3 pin */ @@ -111,6 +115,7 @@ static int snd_allo_boss_clk_for_rate(int sample_rate) case 44100: case 88200: case 176400: + case 352800: type = ALLO_BOSS_CLK44EN; break; default: @@ -138,7 +143,7 @@ static void snd_allo_boss_set_sclk(struct snd_soc_codec *codec, static int snd_allo_boss_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_codec *codec = rtd->codec; - struct pcm512x_priv *priv; + struct pcm512x_priv *priv = snd_soc_codec_get_drvdata(codec); if (slave) snd_soc_allo_boss_master = false; @@ -150,15 +155,22 @@ static int snd_allo_boss_init(struct snd_soc_pcm_runtime *rtd) struct snd_soc_dai_link *dai = rtd->dai_link; dai->name = "BossDAC"; - dai->stream_name = "BossDAC"; + dai->stream_name = "Boss DAC HiFi [Master]"; dai->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM; snd_soc_update_bits(codec, PCM512x_BCLK_LRCLK_CFG, 0x31, 0x11); snd_soc_update_bits(codec, PCM512x_MASTER_MODE, 0x03, 0x03); snd_soc_update_bits(codec, PCM512x_MASTER_CLKDIV_2, 0x7f, 63); + /* + * Default sclk to CLK_48EN_RATE, otherwise codec + * pcm512x_dai_startup_master method could call + * snd_pcm_hw_constraint_ratnums using CLK_44EN/64 + * which will mask 384k sample rate. + */ + if (!IS_ERR(priv->sclk)) + clk_set_rate(priv->sclk, CLK_48EN_RATE); } else { - priv = snd_soc_codec_get_drvdata(codec); priv->sclk = ERR_PTR(-ENOENT); } @@ -218,6 +230,52 @@ static int snd_allo_boss_set_bclk_ratio_pro( return snd_soc_dai_set_bclk_ratio(cpu_dai, bratio); } +static void snd_allo_boss_gpio_mute(struct snd_soc_card *card) +{ + if (mute_gpio) + gpiod_set_value_cansleep(mute_gpio, 1); +} + +static void snd_allo_boss_gpio_unmute(struct snd_soc_card *card) +{ + if (mute_gpio) + gpiod_set_value_cansleep(mute_gpio, 0); +} + +static int snd_allo_boss_set_bias_level(struct snd_soc_card *card, + struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level) +{ + struct snd_soc_pcm_runtime *rtd; + struct snd_soc_dai *codec_dai; + + rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); + codec_dai = rtd->codec_dai; + + if (dapm->dev != codec_dai->dev) + return 0; + + switch (level) { + case SND_SOC_BIAS_PREPARE: + if (dapm->bias_level != SND_SOC_BIAS_STANDBY) + break; + /* UNMUTE DAC */ + snd_allo_boss_gpio_unmute(card); + break; + + case SND_SOC_BIAS_STANDBY: + if (dapm->bias_level != SND_SOC_BIAS_PREPARE) + break; + /* MUTE DAC */ + snd_allo_boss_gpio_mute(card); + break; + + default: + break; + } + + return 0; +} + static int snd_allo_boss_hw_params( struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { @@ -239,23 +297,6 @@ static int snd_allo_boss_hw_params( ret = snd_allo_boss_update_rate_den( substream, params); } else { - if (snd_allo_boss_is_sclk(rtd->codec)) { - snd_soc_update_bits(rtd->codec, PCM512x_PLL_EN, - PCM512x_PLLE, 0x01); - snd_soc_update_bits(rtd->codec, PCM512x_PLL_REF, - PCM512x_SREF, PCM512x_SREF_BCK); - dev_dbg(rtd->codec->dev, - "Setting BCLK as input clock and Enable PLL\n"); - } else { - snd_soc_update_bits(rtd->codec, PCM512x_PLL_EN, - PCM512x_PLLE, 0x00); - snd_soc_update_bits(rtd->codec, PCM512x_PLL_REF, - PCM512x_SREF, PCM512x_SREF_SCK); - - dev_dbg(rtd->codec->dev, - "Setting SCLK as input clock and disabled PLL\n"); - } - ret = snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2); } return ret; @@ -266,8 +307,23 @@ static int snd_allo_boss_startup( { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_codec *codec = rtd->codec; + struct snd_soc_card *card = rtd->card; snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x08, 0x08); + snd_allo_boss_gpio_mute(card); + + if (snd_soc_allo_boss_master) { + struct pcm512x_priv *priv = snd_soc_codec_get_drvdata(codec); + /* + * Default sclk to CLK_48EN_RATE, otherwise codec + * pcm512x_dai_startup_master method could call + * snd_pcm_hw_constraint_ratnums using CLK_44EN/64 + * which will mask 384k sample rate. + */ + if (!IS_ERR(priv->sclk)) + clk_set_rate(priv->sclk, CLK_48EN_RATE); + } + return 0; } @@ -280,11 +336,21 @@ static void snd_allo_boss_shutdown( snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x08, 0x00); } +static int snd_allo_boss_prepare( + struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_card *card = rtd->card; + + snd_allo_boss_gpio_unmute(card); + return 0; +} /* machine stream operations */ static struct snd_soc_ops snd_allo_boss_ops = { .hw_params = snd_allo_boss_hw_params, .startup = snd_allo_boss_startup, .shutdown = snd_allo_boss_shutdown, + .prepare = snd_allo_boss_prepare, }; static struct snd_soc_dai_link snd_allo_boss_dai[] = { @@ -335,19 +401,40 @@ static int snd_allo_boss_probe(struct platform_device *pdev) digital_gain_0db_limit = !of_property_read_bool( pdev->dev.of_node, "allo,24db_digital_gain"); slave = of_property_read_bool(pdev->dev.of_node, - "allo,slave"); - } + "allo,slave"); + + mute_gpio = devm_gpiod_get_optional(&pdev->dev, "mute", + GPIOD_OUT_LOW); + if (IS_ERR(mute_gpio)) { + ret = PTR_ERR(mute_gpio); + dev_err(&pdev->dev, + "failed to get mute gpio: %d\n", ret); + return ret; + } - ret = snd_soc_register_card(&snd_allo_boss); - if (ret) - dev_err(&pdev->dev, - "snd_soc_register_card() failed: %d\n", ret); + if (mute_gpio) + snd_allo_boss.set_bias_level = + snd_allo_boss_set_bias_level; - return ret; + ret = snd_soc_register_card(&snd_allo_boss); + if (ret) { + dev_err(&pdev->dev, + "snd_soc_register_card() failed: %d\n", ret); + return ret; + } + + if (mute_gpio) + snd_allo_boss_gpio_mute(&snd_allo_boss); + + return 0; + } + + return -EINVAL; } static int snd_allo_boss_remove(struct platform_device *pdev) { + snd_allo_boss_gpio_mute(&snd_allo_boss); return snd_soc_unregister_card(&snd_allo_boss); } From b44b82a8f0206c77c6b632faf0ed627c08c2c464 Mon Sep 17 00:00:00 2001 From: BabuSubashChandar Date: Sat, 1 Apr 2017 00:46:52 +0530 Subject: [PATCH 137/165] Add clock changes and mute gpios (#1938) Also improve code style and adhere to ALSA coding conventions. Signed-off-by: Baswaraj K Reviewed-by: Vijay Kumar B. Reviewed-by: Raashid Muhammed --- arch/arm/boot/dts/overlays/README | 3 + .../allo-piano-dac-plus-pcm512x-audio-overlay.dts | 12 +- arch/arm/configs/bcm2709_defconfig | 1 + arch/arm/configs/bcmrpi_defconfig | 2 + sound/soc/bcm/allo-piano-dac-plus.c | 338 +++++++++++++++++---- 5 files changed, 291 insertions(+), 65 deletions(-) diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README index c9e954253a6318dbd2605b93026c04974b3271bd..1377e5b8e8363c3e0ede318ce54bd784cb70d4c9 100644 --- a/arch/arm/boot/dts/overlays/README +++ b/arch/arm/boot/dts/overlays/README @@ -323,6 +323,9 @@ Params: 24db_digital_gain Allow gain to be applied via the PCM512x codec responsibility of the user to ensure that the Digital volume control is set to a value that does not result in clipping/distortion!) + glb_mclk This option is only with Kali board. If enabled, + MCLK for Kali is used and PLL is disabled for + better voice quality. (default Off) Name: at86rf233 diff --git a/arch/arm/boot/dts/overlays/allo-piano-dac-plus-pcm512x-audio-overlay.dts b/arch/arm/boot/dts/overlays/allo-piano-dac-plus-pcm512x-audio-overlay.dts index 6943b55ca5f96097668e2d10c05f56a26be62b0a..5c1c81c427a8b396ca9e9c903e97f2711850d4c6 100644 --- a/arch/arm/boot/dts/overlays/allo-piano-dac-plus-pcm512x-audio-overlay.dts +++ b/arch/arm/boot/dts/overlays/allo-piano-dac-plus-pcm512x-audio-overlay.dts @@ -19,13 +19,13 @@ #size-cells = <0>; status = "okay"; - pcm5122_4c: pcm5122@4c { + allo_pcm5122_4c: pcm5122@4c { #sound-dai-cells = <0>; compatible = "ti,pcm5122"; reg = <0x4c>; status = "okay"; }; - pcm5122_4d: pcm5122@4d { + allo_pcm5122_4d: pcm5122@4d { #sound-dai-cells = <0>; compatible = "ti,pcm5122"; reg = <0x4d>; @@ -38,14 +38,18 @@ target = <&sound>; piano_dac: __overlay__ { compatible = "allo,piano-dac-plus"; - audio-codec = <&pcm5122_4c &pcm5122_4d>; + audio-codec = <&allo_pcm5122_4c &allo_pcm5122_4d>; i2s-controller = <&i2s>; + mute1-gpios = <&gpio 6 1>; + mute2-gpios = <&gpio 25 1>; status = "okay"; }; }; __overrides__ { 24db_digital_gain = - <&piano_dac>,"piano,24db_digital_gain?"; + <&piano_dac>,"allo,24db_digital_gain?"; + glb_mclk = + <&piano_dac>,"allo,glb_mclk?"; }; }; diff --git a/arch/arm/configs/bcm2709_defconfig b/arch/arm/configs/bcm2709_defconfig index f8c97a20611f3f6688a0de4f5c0c167a0fa0bcd6..94227b4a4f8a9b3a4627dceaf7c654da4f2f87df 100644 --- a/arch/arm/configs/bcm2709_defconfig +++ b/arch/arm/configs/bcm2709_defconfig @@ -884,6 +884,7 @@ CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO=m CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO_V2=m CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC=m CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC=m +CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS=m CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO=m CONFIG_SND_PISOUND=m CONFIG_SND_SOC_ADAU1701=m diff --git a/arch/arm/configs/bcmrpi_defconfig b/arch/arm/configs/bcmrpi_defconfig index 1a9b95f1b731c48130a0b468d95d533f458cb2d6..db6589288b6abd6b76b934de07e8976456e14e61 100644 --- a/arch/arm/configs/bcmrpi_defconfig +++ b/arch/arm/configs/bcmrpi_defconfig @@ -876,7 +876,9 @@ CONFIG_SND_AUDIOINJECTOR_OCTO_SOUNDCARD=m CONFIG_SND_DIGIDAC1_SOUNDCARD=m CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO=m CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO_V2=m +CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC=m CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC=m +CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS=m CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO=m CONFIG_SND_PISOUND=m CONFIG_SND_SOC_ADAU1701=m diff --git a/sound/soc/bcm/allo-piano-dac-plus.c b/sound/soc/bcm/allo-piano-dac-plus.c index f66f42abadbd5f9d3fe000676e8297ed91630e47..56e43f98846b41e487b3089813f7edc3c08517eb 100644 --- a/sound/soc/bcm/allo-piano-dac-plus.c +++ b/sound/soc/bcm/allo-piano-dac-plus.c @@ -18,7 +18,7 @@ #include #include - +#include #include #include #include @@ -34,9 +34,19 @@ struct dsp_code { char val; }; -static struct snd_soc_pcm_runtime *rtd_glb; +struct glb_pool { + struct mutex lock; + unsigned int set_lowpass; + unsigned int set_mode; + unsigned int set_rate; + unsigned int dsp_page_number; +}; + static bool digital_gain_0db_limit = true; -unsigned int set_lowpass, set_mode, set_rate, dsp_page_number; +bool glb_mclk; + +static struct gpio_desc *mute_gpio[2]; + static const char * const allo_piano_mode_texts[] = { "2.0", @@ -68,12 +78,14 @@ static const char * const allo_piano_dsp_low_pass_texts[] = { static const SOC_ENUM_SINGLE_DECL(allo_piano_enum, 0, 0, allo_piano_dsp_low_pass_texts); -static int snd_allo_piano_dsp_program(struct snd_soc_pcm_runtime *rtd, +static int __snd_allo_piano_dsp_program(struct snd_soc_pcm_runtime *rtd, unsigned int mode, unsigned int rate, unsigned int lowpass) { const struct firmware *fw; - char firmware_name[40]; + char firmware_name[60]; int ret = 0, dac = 0; + struct snd_soc_card *card = rtd->card; + struct glb_pool *glb_ptr = card->drvdata; if (rate <= 46000) rate = 44100; @@ -88,47 +100,51 @@ static int snd_allo_piano_dsp_program(struct snd_soc_pcm_runtime *rtd, else rate = 192000; - /* same configuration loaded */ - if ((rate == set_rate) && (lowpass == set_lowpass) - && (mode == set_mode)) - return 1; + if ((lowpass > 14) || (lowpass < 0)) + lowpass = 3; + if ((mode > 2) || (mode < 0)) + mode = 0; - set_rate = rate; - set_mode = mode; + /* same configuration loaded */ + if ((rate == glb_ptr->set_rate) && (lowpass == glb_ptr->set_lowpass) + && (mode == glb_ptr->set_mode)) + return 0; if (mode == 0) { /* 2.0 */ snd_soc_write(rtd->codec_dais[1]->codec, - PCM512x_MUTE, 0x11); + PCM512x_MUTE, 0x11); + glb_ptr->set_rate = rate; + glb_ptr->set_mode = mode; + glb_ptr->set_lowpass = lowpass; return 1; } else { snd_soc_write(rtd->codec_dais[1]->codec, - PCM512x_MUTE, 0x00); + PCM512x_MUTE, 0x00); } - set_lowpass = lowpass; - for (dac = 0; dac < rtd->num_codecs; dac++) { struct dsp_code *dsp_code_read; - int i = 1; struct snd_soc_codec *codec = rtd->codec_dais[dac]->codec; + int i = 1; if (dac == 0) { /* high */ sprintf(firmware_name, - "alloPiano/2.2/allo-piano-dsp-%d-%d-%d.bin", - rate, ((set_lowpass * 10) + 60), dac); + "allo/piano/2.2/allo-piano-dsp-%d-%d-%d.bin", + rate, ((lowpass * 10) + 60), dac); } else { /* low */ sprintf(firmware_name, - "alloPiano/2.%d/allo-piano-dsp-%d-%d-%d.bin", - set_mode, rate, ((set_lowpass * 10) + 60), dac); + "allo/piano/2.%d/allo-piano-dsp-%d-%d-%d.bin", + mode, rate, ((lowpass * 10) + 60), dac); } dev_info(codec->dev, "Dsp Firmware File Name: %s\n", - firmware_name); + firmware_name); ret = request_firmware(&fw, firmware_name, codec->dev); if (ret < 0) { - dev_err(codec->dev, "Error: AlloPiano Firmware %s missing. %d\n", - firmware_name, ret); + dev_err(codec->dev, + "Error: Allo Piano Firmware %s missing. %d\n", + firmware_name, ret); goto err; } @@ -136,62 +152,97 @@ static int snd_allo_piano_dsp_program(struct snd_soc_pcm_runtime *rtd, dsp_code_read = (struct dsp_code *)&fw->data[i]; if (dsp_code_read->offset == 0) { - dsp_page_number = dsp_code_read->val; + glb_ptr->dsp_page_number = dsp_code_read->val; ret = snd_soc_write(rtd->codec_dais[dac]->codec, PCM512x_PAGE_BASE(0), dsp_code_read->val); } else if (dsp_code_read->offset != 0) { ret = snd_soc_write(rtd->codec_dais[dac]->codec, - (PCM512x_PAGE_BASE(dsp_page_number) + + (PCM512x_PAGE_BASE( + glb_ptr->dsp_page_number) + dsp_code_read->offset), dsp_code_read->val); - } if (ret < 0) { dev_err(codec->dev, "Failed to write Register: %d\n", ret); + release_firmware(fw); goto err; } i = i + 3; } release_firmware(fw); } + glb_ptr->set_rate = rate; + glb_ptr->set_mode = mode; + glb_ptr->set_lowpass = lowpass; return 1; err: - release_firmware(fw); + return ret; +} + +static int snd_allo_piano_dsp_program(struct snd_soc_pcm_runtime *rtd, + unsigned int mode, unsigned int rate, unsigned int lowpass) +{ + struct snd_soc_card *card = rtd->card; + struct glb_pool *glb_ptr = card->drvdata; + int ret = 0; + + mutex_lock(&glb_ptr->lock); + + ret = __snd_allo_piano_dsp_program(rtd, + mode, rate, lowpass); + mutex_unlock(&glb_ptr->lock); + return ret; } static int snd_allo_piano_mode_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - ucontrol->value.integer.value[0] = set_mode; + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + struct glb_pool *glb_ptr = card->drvdata; + + ucontrol->value.integer.value[0] = glb_ptr->set_mode; return 0; } static int snd_allo_piano_mode_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - return(snd_allo_piano_dsp_program(rtd_glb, - ucontrol->value.integer.value[0], - set_rate, set_lowpass)); + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + struct snd_soc_pcm_runtime *rtd; + struct glb_pool *glb_ptr = card->drvdata; + + rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); + return(snd_allo_piano_dsp_program(rtd, + ucontrol->value.integer.value[0], + glb_ptr->set_rate, glb_ptr->set_lowpass)); } static int snd_allo_piano_lowpass_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - ucontrol->value.integer.value[0] = set_lowpass; + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + struct glb_pool *glb_ptr = card->drvdata; + + ucontrol->value.integer.value[0] = glb_ptr->set_lowpass; return 0; } static int snd_allo_piano_lowpass_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - return(snd_allo_piano_dsp_program(rtd_glb, - set_mode, set_rate, - ucontrol->value.integer.value[0])); + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + struct snd_soc_pcm_runtime *rtd; + struct glb_pool *glb_ptr = card->drvdata; + + rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); + return(snd_allo_piano_dsp_program(rtd, + glb_ptr->set_mode, glb_ptr->set_rate, + ucontrol->value.integer.value[0])); } static int pcm512x_get_reg_sub(struct snd_kcontrol *kcontrol, @@ -199,15 +250,18 @@ static int pcm512x_get_reg_sub(struct snd_kcontrol *kcontrol, { struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + struct snd_soc_pcm_runtime *rtd; unsigned int left_val = 0; unsigned int right_val = 0; - left_val = snd_soc_read(rtd_glb->codec_dais[1]->codec, + rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); + left_val = snd_soc_read(rtd->codec_dais[1]->codec, PCM512x_DIGITAL_VOLUME_2); if (left_val < 0) return left_val; - right_val = snd_soc_read(rtd_glb->codec_dais[1]->codec, + right_val = snd_soc_read(rtd->codec_dais[1]->codec, PCM512x_DIGITAL_VOLUME_3); if (right_val < 0) return right_val; @@ -225,16 +279,19 @@ static int pcm512x_set_reg_sub(struct snd_kcontrol *kcontrol, { struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + struct snd_soc_pcm_runtime *rtd; unsigned int left_val = (ucontrol->value.integer.value[0] & mc->max); unsigned int right_val = (ucontrol->value.integer.value[1] & mc->max); int ret = 0; - ret = snd_soc_write(rtd_glb->codec_dais[1]->codec, + rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); + ret = snd_soc_write(rtd->codec_dais[1]->codec, PCM512x_DIGITAL_VOLUME_2, (~left_val)); if (ret < 0) return ret; - ret = snd_soc_write(rtd_glb->codec_dais[1]->codec, + ret = snd_soc_write(rtd->codec_dais[1]->codec, PCM512x_DIGITAL_VOLUME_3, (~right_val)); if (ret < 0) return ret; @@ -245,9 +302,12 @@ static int pcm512x_set_reg_sub(struct snd_kcontrol *kcontrol, static int pcm512x_get_reg_sub_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + struct snd_soc_pcm_runtime *rtd; int val = 0; - val = snd_soc_read(rtd_glb->codec_dais[1]->codec, PCM512x_MUTE); + rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); + val = snd_soc_read(rtd->codec_dais[1]->codec, PCM512x_MUTE); if (val < 0) return val; @@ -260,11 +320,14 @@ static int pcm512x_get_reg_sub_switch(struct snd_kcontrol *kcontrol, static int pcm512x_set_reg_sub_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + struct snd_soc_pcm_runtime *rtd; unsigned int left_val = (ucontrol->value.integer.value[0]); unsigned int right_val = (ucontrol->value.integer.value[1]); int ret = 0; - ret = snd_soc_write(rtd_glb->codec_dais[1]->codec, PCM512x_MUTE, + rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); + ret = snd_soc_write(rtd->codec_dais[1]->codec, PCM512x_MUTE, ~((left_val & 0x01)<<4 | (right_val & 0x01))); if (ret < 0) return ret; @@ -276,23 +339,23 @@ static int pcm512x_set_reg_sub_switch(struct snd_kcontrol *kcontrol, static const DECLARE_TLV_DB_SCALE(digital_tlv_sub, -10350, 50, 1); static const struct snd_kcontrol_new allo_piano_controls[] = { - SOC_ENUM_EXT("Subwoofer mode", + SOC_ENUM_EXT("Subwoofer mode Route", allo_piano_mode_enum, snd_allo_piano_mode_get, snd_allo_piano_mode_put), - SOC_ENUM_EXT("Lowpass", allo_piano_enum, + SOC_ENUM_EXT("Lowpass Route", allo_piano_enum, snd_allo_piano_lowpass_get, snd_allo_piano_lowpass_put), - SOC_DOUBLE_R_EXT_TLV("Subwoofer Digital Playback Volume", + SOC_DOUBLE_R_EXT_TLV("Subwoofer Playback Volume", PCM512x_DIGITAL_VOLUME_2, PCM512x_DIGITAL_VOLUME_3, 0, 255, 1, pcm512x_get_reg_sub, pcm512x_set_reg_sub, digital_tlv_sub), - SOC_DOUBLE_EXT("Subwoofer Digital Playback Switch", + SOC_DOUBLE_EXT("Subwoofer Playback Switch", PCM512x_MUTE, PCM512x_RQML_SHIFT, PCM512x_RQMR_SHIFT, 1, 1, @@ -302,11 +365,20 @@ static const struct snd_kcontrol_new allo_piano_controls[] = { static int snd_allo_piano_dac_init(struct snd_soc_pcm_runtime *rtd) { - rtd_glb = rtd; + struct snd_soc_card *card = rtd->card; + struct glb_pool *glb_ptr; + + glb_ptr = kmalloc(sizeof(struct glb_pool), GFP_KERNEL); + if (!glb_ptr) + return -ENOMEM; + + memset(glb_ptr, 0x00, sizeof(glb_ptr)); + card->drvdata = glb_ptr; + + mutex_init(&glb_ptr->lock); if (digital_gain_0db_limit) { int ret; - struct snd_soc_card *card = rtd->card; ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207); @@ -318,7 +390,71 @@ static int snd_allo_piano_dac_init(struct snd_soc_pcm_runtime *rtd) return 0; } -static int snd_allo_piano_dac_hw_params(struct snd_pcm_substream *substream, +static void snd_allo_piano_gpio_mute(struct snd_soc_card *card) +{ + if (mute_gpio[0]) + gpiod_set_value_cansleep(mute_gpio[0], 1); + + if (mute_gpio[1]) + gpiod_set_value_cansleep(mute_gpio[1], 1); +} + +static void snd_allo_piano_gpio_unmute(struct snd_soc_card *card) +{ + if (mute_gpio[0]) + gpiod_set_value_cansleep(mute_gpio[0], 0); + + if (mute_gpio[1]) + gpiod_set_value_cansleep(mute_gpio[1], 0); +} + +static int snd_allo_piano_set_bias_level(struct snd_soc_card *card, + struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level) +{ + struct snd_soc_pcm_runtime *rtd; + struct snd_soc_dai *codec_dai; + + rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); + codec_dai = rtd->codec_dai; + + if (dapm->dev != codec_dai->dev) + return 0; + + switch (level) { + case SND_SOC_BIAS_PREPARE: + if (dapm->bias_level != SND_SOC_BIAS_STANDBY) + break; + /* UNMUTE DAC */ + snd_allo_piano_gpio_unmute(card); + break; + + case SND_SOC_BIAS_STANDBY: + if (dapm->bias_level != SND_SOC_BIAS_PREPARE) + break; + /* MUTE DAC */ + snd_allo_piano_gpio_mute(card); + break; + + default: + break; + } + + return 0; +} + +static int snd_allo_piano_dac_startup( + struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_card *card = rtd->card; + + snd_allo_piano_gpio_mute(card); + + return 0; +} + +static int snd_allo_piano_dac_hw_params( + struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; @@ -327,17 +463,49 @@ static int snd_allo_piano_dac_hw_params(struct snd_pcm_substream *substream, snd_pcm_format_physical_width(params_format(params)); unsigned int rate = params_rate(params); struct snd_soc_card *card = rtd->card; - int ret = 0; + struct glb_pool *glb_ptr = card->drvdata; + int ret = 0, val = 0, dac; + + for (dac = 0; (glb_mclk && dac < 2); dac++) { + /* Configure the PLL clock reference for both the Codecs */ + val = snd_soc_read(rtd->codec_dais[dac]->codec, + PCM512x_RATE_DET_4); + if (val < 0) { + dev_err(rtd->codec_dais[dac]->codec->dev, + "Failed to read register PCM512x_RATE_DET_4\n"); + return val; + } + + if (val & 0x40) { + snd_soc_write(rtd->codec_dais[dac]->codec, + PCM512x_PLL_REF, + PCM512x_SREF_BCK); + + dev_info(rtd->codec_dais[dac]->codec->dev, + "Setting BCLK as input clock & Enable PLL\n"); + } else { + snd_soc_write(rtd->codec_dais[dac]->codec, + PCM512x_PLL_EN, + 0x00); + + snd_soc_write(rtd->codec_dais[dac]->codec, + PCM512x_PLL_REF, + PCM512x_SREF_SCK); + + dev_info(rtd->codec_dais[dac]->codec->dev, + "Setting SCLK as input clock & disabled PLL\n"); + } + } - rtd_glb = rtd; /* TODO */ if (digital_gain_0db_limit) { ret = snd_soc_limit_volume(card, - "Subwoofer Digital Playback Volume", 207); + "Subwoofer Playback Volume", 207); if (ret < 0) dev_warn(card->dev, "Failed to set volume limit: %d\n", ret); } - ret = snd_allo_piano_dsp_program(rtd, set_mode, rate, set_lowpass); + ret = snd_allo_piano_dsp_program(rtd, glb_ptr->set_mode, rate, + glb_ptr->set_lowpass); if (ret < 0) return ret; @@ -346,9 +514,21 @@ static int snd_allo_piano_dac_hw_params(struct snd_pcm_substream *substream, return ret; } +static int snd_allo_piano_dac_prepare( + struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_card *card = rtd->card; + + snd_allo_piano_gpio_unmute(card); + return 0; +} + /* machine stream operations */ static struct snd_soc_ops snd_allo_piano_dac_ops = { + .startup = snd_allo_piano_dac_startup, .hw_params = snd_allo_piano_dac_hw_params, + .prepare = snd_allo_piano_dac_prepare, }; static struct snd_soc_dai_link_component allo_piano_2_1_codecs[] = { @@ -388,11 +568,11 @@ static struct snd_soc_card snd_allo_piano_dac = { static int snd_allo_piano_dac_probe(struct platform_device *pdev) { - int ret = 0, i = 0; struct snd_soc_card *card = &snd_allo_piano_dac; + int ret = 0, i = 0; card->dev = &pdev->dev; - snd_allo_piano_dac.dev = &pdev->dev; + platform_set_drvdata(pdev, &snd_allo_piano_dac); if (pdev->dev.of_node) { struct device_node *i2s_node; @@ -400,7 +580,7 @@ static int snd_allo_piano_dac_probe(struct platform_device *pdev) dai = &snd_allo_piano_dac_dai[0]; i2s_node = of_parse_phandle(pdev->dev.of_node, - "i2s-controller", 0); + "i2s-controller", 0); if (i2s_node) { for (i = 0; i < card->num_links; i++) { dai->cpu_dai_name = NULL; @@ -413,6 +593,9 @@ static int snd_allo_piano_dac_probe(struct platform_device *pdev) !of_property_read_bool(pdev->dev.of_node, "allo,24db_digital_gain"); + glb_mclk = of_property_read_bool(pdev->dev.of_node, + "allo,glb_mclk"); + allo_piano_2_1_codecs[0].of_node = of_parse_phandle(pdev->dev.of_node, "audio-codec", 0); if (!allo_piano_2_1_codecs[0].of_node) { @@ -428,18 +611,51 @@ static int snd_allo_piano_dac_probe(struct platform_device *pdev) "Property 'audio-codec' missing or invalid\n"); return -EINVAL; } - } - ret = snd_soc_register_card(&snd_allo_piano_dac); - if (ret < 0) - dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", - ret); + mute_gpio[0] = devm_gpiod_get_optional(&pdev->dev, "mute1", + GPIOD_OUT_LOW); + if (IS_ERR(mute_gpio[0])) { + ret = PTR_ERR(mute_gpio[0]); + dev_err(&pdev->dev, + "failed to get mute1 gpio6: %d\n", ret); + return ret; + } - return ret; + mute_gpio[1] = devm_gpiod_get_optional(&pdev->dev, "mute2", + GPIOD_OUT_LOW); + if (IS_ERR(mute_gpio[1])) { + ret = PTR_ERR(mute_gpio[1]); + dev_err(&pdev->dev, + "failed to get mute2 gpio25: %d\n", ret); + return ret; + } + + if (mute_gpio[0] && mute_gpio[1]) + snd_allo_piano_dac.set_bias_level = + snd_allo_piano_set_bias_level; + + ret = snd_soc_register_card(&snd_allo_piano_dac); + if (ret < 0) { + dev_err(&pdev->dev, + "snd_soc_register_card() failed: %d\n", ret); + return ret; + } + + if ((mute_gpio[0]) && (mute_gpio[1])) + snd_allo_piano_gpio_mute(&snd_allo_piano_dac); + + return 0; + } + + return -EINVAL; } static int snd_allo_piano_dac_remove(struct platform_device *pdev) { + struct snd_soc_card *card = platform_get_drvdata(pdev); + + kfree(&card->drvdata); + snd_allo_piano_gpio_mute(&snd_allo_piano_dac); return snd_soc_unregister_card(&snd_allo_piano_dac); } From 1264d706e16346c126b08c6b1e29d122a2f1496c Mon Sep 17 00:00:00 2001 From: Yasunari Takiguchi Date: Fri, 14 Apr 2017 10:43:57 +0100 Subject: [PATCH 138/165] This is the driver for Sony CXD2880 DVB-T2/T tuner + demodulator. It includes the CXD2880 driver and the CXD2880 SPI adapter. The current CXD2880 driver version is 1.4.1 - 1.0.1 released on April 13, 2017. Signed-off-by: Yasunari Takiguchi Signed-off-by: Masayuki Yamamoto Signed-off-by: Hideki Nozawa Signed-off-by: Kota Yonezawa Signed-off-by: Toshihiko Matsumoto Signed-off-by: Satoshi Watanabe --- drivers/media/dvb-frontends/Kconfig | 2 + drivers/media/dvb-frontends/Makefile | 1 + drivers/media/dvb-frontends/cxd2880/Kconfig | 6 + drivers/media/dvb-frontends/cxd2880/Makefile | 21 + drivers/media/dvb-frontends/cxd2880/cxd2880.h | 46 + .../media/dvb-frontends/cxd2880/cxd2880_common.c | 84 + .../media/dvb-frontends/cxd2880/cxd2880_common.h | 86 + .../dvb-frontends/cxd2880/cxd2880_devio_spi.c | 147 + .../dvb-frontends/cxd2880/cxd2880_devio_spi.h | 40 + drivers/media/dvb-frontends/cxd2880/cxd2880_dtv.h | 50 + drivers/media/dvb-frontends/cxd2880/cxd2880_dvbt.h | 91 + .../media/dvb-frontends/cxd2880/cxd2880_dvbt2.h | 402 ++ .../media/dvb-frontends/cxd2880/cxd2880_integ.c | 99 + .../media/dvb-frontends/cxd2880/cxd2880_integ.h | 44 + .../dvb-frontends/cxd2880/cxd2880_integ_dvbt.c | 197 + .../dvb-frontends/cxd2880/cxd2880_integ_dvbt.h | 58 + .../dvb-frontends/cxd2880/cxd2880_integ_dvbt2.c | 311 ++ .../dvb-frontends/cxd2880/cxd2880_integ_dvbt2.h | 64 + drivers/media/dvb-frontends/cxd2880/cxd2880_io.c | 68 + drivers/media/dvb-frontends/cxd2880/cxd2880_io.h | 62 + drivers/media/dvb-frontends/cxd2880/cxd2880_math.c | 89 + drivers/media/dvb-frontends/cxd2880/cxd2880_math.h | 40 + drivers/media/dvb-frontends/cxd2880/cxd2880_spi.h | 51 + .../dvb-frontends/cxd2880/cxd2880_spi_device.c | 130 + .../dvb-frontends/cxd2880/cxd2880_spi_device.h | 45 + .../media/dvb-frontends/cxd2880/cxd2880_stdlib.h | 35 + .../dvb-frontends/cxd2880/cxd2880_stopwatch_port.c | 71 + .../media/dvb-frontends/cxd2880/cxd2880_tnrdmd.c | 3925 ++++++++++++++++++++ .../media/dvb-frontends/cxd2880/cxd2880_tnrdmd.h | 395 ++ .../cxd2880/cxd2880_tnrdmd_driver_version.h | 29 + .../dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt.c | 1072 ++++++ .../dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt.h | 62 + .../dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2.c | 1309 +++++++ .../dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2.h | 82 + .../cxd2880/cxd2880_tnrdmd_dvbt2_mon.c | 2523 +++++++++++++ .../cxd2880/cxd2880_tnrdmd_dvbt2_mon.h | 170 + .../cxd2880/cxd2880_tnrdmd_dvbt_mon.c | 1190 ++++++ .../cxd2880/cxd2880_tnrdmd_dvbt_mon.h | 106 + .../dvb-frontends/cxd2880/cxd2880_tnrdmd_mon.c | 207 ++ .../dvb-frontends/cxd2880/cxd2880_tnrdmd_mon.h | 52 + drivers/media/dvb-frontends/cxd2880/cxd2880_top.c | 1550 ++++++++ drivers/media/spi/Kconfig | 14 + drivers/media/spi/Makefile | 5 + drivers/media/spi/cxd2880-spi.c | 728 ++++ 44 files changed, 15759 insertions(+) create mode 100644 drivers/media/dvb-frontends/cxd2880/Kconfig create mode 100644 drivers/media/dvb-frontends/cxd2880/Makefile create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_common.c create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_common.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_devio_spi.c create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_devio_spi.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_dtv.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_dvbt.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_dvbt2.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_integ.c create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_integ.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt.c create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt2.c create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt2.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_io.c create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_io.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_math.c create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_math.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_spi.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_spi_device.c create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_spi_device.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_stdlib.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_stopwatch_port.c create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd.c create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_driver_version.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt.c create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2.c create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2_mon.c create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2_mon.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.c create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_mon.c create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_mon.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_top.c create mode 100644 drivers/media/spi/cxd2880-spi.c diff --git a/drivers/media/dvb-frontends/Kconfig b/drivers/media/dvb-frontends/Kconfig index e8c6554a47aa13761ca8016cb0cd7d066e38927a..3a3a7129a15001a2a3134c2aafc880540899cc9f 100644 --- a/drivers/media/dvb-frontends/Kconfig +++ b/drivers/media/dvb-frontends/Kconfig @@ -518,6 +518,8 @@ config DVB_GP8PSK_FE depends on DVB_CORE default DVB_USB_GP8PSK +source "drivers/media/dvb-frontends/cxd2880/Kconfig" + comment "DVB-C (cable) frontends" depends on DVB_CORE diff --git a/drivers/media/dvb-frontends/Makefile b/drivers/media/dvb-frontends/Makefile index 3fccaf34ef520acf4207710dbf15fd7c08cc62fa..d298c79546999f80a788309824fd6545b2d25ff7 100644 --- a/drivers/media/dvb-frontends/Makefile +++ b/drivers/media/dvb-frontends/Makefile @@ -126,3 +126,4 @@ obj-$(CONFIG_DVB_HORUS3A) += horus3a.o obj-$(CONFIG_DVB_ASCOT2E) += ascot2e.o obj-$(CONFIG_DVB_HELENE) += helene.o obj-$(CONFIG_DVB_ZD1301_DEMOD) += zd1301_demod.o +obj-$(CONFIG_DVB_CXD2880) += cxd2880/ diff --git a/drivers/media/dvb-frontends/cxd2880/Kconfig b/drivers/media/dvb-frontends/cxd2880/Kconfig new file mode 100644 index 0000000000000000000000000000000000000000..36b8b6f7c4f71d9b0b8539c2713e800a32913d8e --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/Kconfig @@ -0,0 +1,6 @@ +config DVB_CXD2880 + tristate "Sony CXD2880 DVB-T2/T tuner + demodulator" + depends on DVB_CORE && SPI + default m if !MEDIA_SUBDRV_AUTOSELECT + help + Say Y when you want to support this frontend. \ No newline at end of file diff --git a/drivers/media/dvb-frontends/cxd2880/Makefile b/drivers/media/dvb-frontends/cxd2880/Makefile new file mode 100644 index 0000000000000000000000000000000000000000..2672c4a3d65cf4ff65e9dc8d240ae88cdfa1eb19 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/Makefile @@ -0,0 +1,21 @@ +cxd2880-objs := cxd2880_common.o \ + cxd2880_devio_spi.o \ + cxd2880_integ.o \ + cxd2880_integ_dvbt2.o \ + cxd2880_integ_dvbt.o \ + cxd2880_io.o \ + cxd2880_spi_device.o \ + cxd2880_stopwatch_port.o \ + cxd2880_tnrdmd.o \ + cxd2880_tnrdmd_dvbt2.o \ + cxd2880_tnrdmd_dvbt2_mon.o \ + cxd2880_tnrdmd_dvbt.o \ + cxd2880_tnrdmd_dvbt_mon.o\ + cxd2880_tnrdmd_mon.o\ + cxd2880_math.o \ + cxd2880_top.o + +obj-$(CONFIG_DVB_CXD2880) += cxd2880.o + +ccflags-y += -Idrivers/media/dvb-core +ccflags-y += -Idrivers/media/dvb-frontends diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880.h b/drivers/media/dvb-frontends/cxd2880/cxd2880.h new file mode 100644 index 0000000000000000000000000000000000000000..281f9a784eb530355bcf94500609d17180b9f73c --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880.h @@ -0,0 +1,46 @@ +/* + * cxd2880.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver public definitions + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef CXD2880_H +#define CXD2880_H + +struct cxd2880_config { + struct spi_device *spi; + struct mutex *spi_mutex; /* For SPI access exclusive control */ +}; + +#if IS_REACHABLE(CONFIG_DVB_CXD2880) +extern struct dvb_frontend *cxd2880_attach(struct dvb_frontend *fe, + struct cxd2880_config *cfg); +#else +static inline struct dvb_frontend *cxd2880_attach(struct dvb_frontend *fe, + struct cxd2880_config *cfg) +{ + pr_warn("%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif /* CONFIG_DVB_CXD2880 */ + +#endif /* CXD2880_H */ diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_common.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_common.c new file mode 100644 index 0000000000000000000000000000000000000000..850f3a76b2c79808fd080801507f8edcda5d4b4d --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_common.c @@ -0,0 +1,84 @@ +/* + * cxd2880_common.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * common functions + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include "cxd2880_common.h" + +#define MASKUPPER(n) (((n) == 0) ? 0 : (0xFFFFFFFFU << (32 - (n)))) +#define MASKLOWER(n) (((n) == 0) ? 0 : (0xFFFFFFFFU >> (32 - (n)))) + +int cxd2880_convert2s_complement(u32 value, u32 bitlen) +{ + if ((bitlen == 0) || (bitlen >= 32)) + return (int)value; + + if (value & (u32)(1 << (bitlen - 1))) + return (int)(MASKUPPER(32 - bitlen) | value); + else + return (int)(MASKLOWER(bitlen) & value); +} + +u32 cxd2880_bit_split_from_byte_array(u8 *array, u32 start_bit, u32 bit_num) +{ + u32 value = 0; + u8 *array_read; + u8 bit_read; + u32 len_remain; + + if (!array) + return 0; + if ((bit_num == 0) || (bit_num > 32)) + return 0; + + array_read = array + (start_bit / 8); + bit_read = (u8)(start_bit % 8); + len_remain = bit_num; + + if (bit_read != 0) { + if (((int)len_remain) <= 8 - bit_read) { + value = (*array_read) >> ((8 - bit_read) - len_remain); + len_remain = 0; + } else { + value = *array_read++; + len_remain -= 8 - bit_read; + } + } + + while (len_remain > 0) { + if (len_remain < 8) { + value <<= len_remain; + value |= (*array_read++ >> (8 - len_remain)); + len_remain = 0; + } else { + value <<= 8; + value |= (u32)(*array_read++); + len_remain -= 8; + } + } + + value &= MASKLOWER(bit_num); + + return value; +} diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_common.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_common.h new file mode 100644 index 0000000000000000000000000000000000000000..b1ecb44bca10f730b1dc6add663c469ade5784c9 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_common.h @@ -0,0 +1,86 @@ +/* + * cxd2880_common.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver common definitions + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef CXD2880_COMMON_H +#define CXD2880_COMMON_H + +#include + +#ifndef NULL +#ifdef __cplusplus +#define NULL 0 +#else +#define NULL ((void *)0) +#endif +#endif + +#include +#define CXD2880_SLEEP(n) msleep(n) +#ifndef CXD2880_SLEEP_IN_MON +#define CXD2880_SLEEP_IN_MON(n, obj) CXD2880_SLEEP(n) +#endif + +#define CXD2880_ARG_UNUSED(arg) ((void)(arg)) + +enum cxd2880_ret { + CXD2880_RESULT_OK, + CXD2880_RESULT_ERROR_ARG, + CXD2880_RESULT_ERROR_IO, + CXD2880_RESULT_ERROR_SW_STATE, + CXD2880_RESULT_ERROR_HW_STATE, + CXD2880_RESULT_ERROR_TIMEOUT, + CXD2880_RESULT_ERROR_UNLOCK, + CXD2880_RESULT_ERROR_RANGE, + CXD2880_RESULT_ERROR_NOSUPPORT, + CXD2880_RESULT_ERROR_CANCEL, + CXD2880_RESULT_ERROR_OTHER, + CXD2880_RESULT_ERROR_OVERFLOW, + CXD2880_RESULT_OK_CONFIRM +}; + +int cxd2880_convert2s_complement(u32 value, u32 bitlen); + +u32 cxd2880_bit_split_from_byte_array(u8 *array, u32 start_bit, u32 bit_num); + +struct cxd2880_atomic { + int counter; +}; + +#define cxd2880_atomic_set(a, i) ((a)->counter = i) +#define cxd2880_atomic_read(a) ((a)->counter) + +struct cxd2880_stopwatch { + u32 start_time; +}; + +enum cxd2880_ret cxd2880_stopwatch_start(struct cxd2880_stopwatch *stopwatch); + +enum cxd2880_ret cxd2880_stopwatch_sleep(struct cxd2880_stopwatch *stopwatch, + u32 ms); + +enum cxd2880_ret cxd2880_stopwatch_elapsed(struct cxd2880_stopwatch *stopwatch, + u32 *elapsed); + +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_devio_spi.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_devio_spi.c new file mode 100644 index 0000000000000000000000000000000000000000..516efade6bf586629f5df6a72e7cd0f81544ee90 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_devio_spi.c @@ -0,0 +1,147 @@ +/* + * cxd2880_devio_spi.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * I/O interface via SPI + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include "cxd2880_devio_spi.h" +#include "cxd2880_stdlib.h" + +#define BURST_WRITE_MAX 128 + +static enum cxd2880_ret cxd2880_io_spi_read_reg(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, + u8 sub_address, u8 *data, + u32 size) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + struct cxd2880_spi *spi = NULL; + u8 send_data[6]; + u8 *read_data_top = data; + + if ((!io) || (!io->if_object) || (!data)) + return CXD2880_RESULT_ERROR_ARG; + + if (sub_address + size > 0x100) + return CXD2880_RESULT_ERROR_RANGE; + + spi = (struct cxd2880_spi *)(io->if_object); + + if (tgt == CXD2880_IO_TGT_SYS) + send_data[0] = 0x0B; + else + send_data[0] = 0x0A; + + send_data[3] = 0; + send_data[4] = 0; + send_data[5] = 0; + + while (size > 0) { + send_data[1] = sub_address; + if (size > 255) + send_data[2] = 255; + else + send_data[2] = (u8)size; + + ret = + spi->write_read(spi, send_data, sizeof(send_data), + read_data_top, send_data[2]); + if (ret != CXD2880_RESULT_OK) + return ret; + + sub_address += send_data[2]; + read_data_top += send_data[2]; + size -= send_data[2]; + } + + return ret; +} + +static enum cxd2880_ret cxd2880_io_spi_write_reg(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, + u8 sub_address, + const u8 *data, u32 size) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + struct cxd2880_spi *spi = NULL; + u8 send_data[BURST_WRITE_MAX + 4]; + const u8 *write_data_top = data; + + if ((!io) || (!io->if_object) || (!data)) + return CXD2880_RESULT_ERROR_ARG; + + if (size > BURST_WRITE_MAX) + return CXD2880_RESULT_ERROR_OVERFLOW; + + if (sub_address + size > 0x100) + return CXD2880_RESULT_ERROR_RANGE; + + spi = (struct cxd2880_spi *)(io->if_object); + + if (tgt == CXD2880_IO_TGT_SYS) + send_data[0] = 0x0F; + else + send_data[0] = 0x0E; + + while (size > 0) { + send_data[1] = sub_address; + if (size > 255) + send_data[2] = 255; + else + send_data[2] = (u8)size; + + cxd2880_memcpy(&send_data[3], write_data_top, send_data[2]); + + if (tgt == CXD2880_IO_TGT_SYS) { + send_data[3 + send_data[2]] = 0x00; + ret = spi->write(spi, send_data, send_data[2] + 4); + } else { + ret = spi->write(spi, send_data, send_data[2] + 3); + } + if (ret != CXD2880_RESULT_OK) + return ret; + + sub_address += send_data[2]; + write_data_top += send_data[2]; + size -= send_data[2]; + } + + return ret; +} + +enum cxd2880_ret cxd2880_io_spi_create(struct cxd2880_io *io, + struct cxd2880_spi *spi, u8 slave_select) +{ + if ((!io) || (!spi)) + return CXD2880_RESULT_ERROR_ARG; + + io->read_regs = cxd2880_io_spi_read_reg; + io->write_regs = cxd2880_io_spi_write_reg; + io->write_reg = cxd2880_io_common_write_one_reg; + io->if_object = spi; + io->i2c_address_sys = 0; + io->i2c_address_demod = 0; + io->slave_select = slave_select; + + return CXD2880_RESULT_OK; +} diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_devio_spi.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_devio_spi.h new file mode 100644 index 0000000000000000000000000000000000000000..15934bf11935bb0da08996f3441891fb8710b15c --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_devio_spi.h @@ -0,0 +1,40 @@ +/* + * cxd2880_devio_spi.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * I/O interface via SPI + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef CXD2880_DEVIO_SPI_H +#define CXD2880_DEVIO_SPI_H + +#include "cxd2880_common.h" +#include "cxd2880_io.h" +#include "cxd2880_spi.h" + +#include "cxd2880_tnrdmd.h" + +enum cxd2880_ret cxd2880_io_spi_create(struct cxd2880_io *io, + struct cxd2880_spi *spi, + u8 slave_select); + +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_dtv.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_dtv.h new file mode 100644 index 0000000000000000000000000000000000000000..7de098d556fec6a90f7335328059de4c69d66df2 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_dtv.h @@ -0,0 +1,50 @@ +/* + * cxd2880_dtv.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * DTV related definitions + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef CXD2880_DTV_H +#define CXD2880_DTV_H + +enum cxd2880_dtv_sys { + CXD2880_DTV_SYS_UNKNOWN, + CXD2880_DTV_SYS_DVBT, + CXD2880_DTV_SYS_DVBT2, + CXD2880_DTV_SYS_ISDBT, + CXD2880_DTV_SYS_ISDBTSB, + CXD2880_DTV_SYS_ISDBTMM_A, + CXD2880_DTV_SYS_ISDBTMM_B, + CXD2880_DTV_SYS_ANY +}; + +enum cxd2880_dtv_bandwidth { + CXD2880_DTV_BW_UNKNOWN = 0, + CXD2880_DTV_BW_1_7_MHZ = 1, + CXD2880_DTV_BW_5_MHZ = 5, + CXD2880_DTV_BW_6_MHZ = 6, + CXD2880_DTV_BW_7_MHZ = 7, + CXD2880_DTV_BW_8_MHZ = 8 +}; + +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_dvbt.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_dvbt.h new file mode 100644 index 0000000000000000000000000000000000000000..345c094760d28a48995aca91b61ff034fa475db0 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_dvbt.h @@ -0,0 +1,91 @@ +/* + * cxd2880_dvbt.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * DVB-T related definitions + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef CXD2880_DVBT_H +#define CXD2880_DVBT_H + +#include "cxd2880_common.h" + +enum cxd2880_dvbt_constellation { + CXD2880_DVBT_CONSTELLATION_QPSK, + CXD2880_DVBT_CONSTELLATION_16QAM, + CXD2880_DVBT_CONSTELLATION_64QAM, + CXD2880_DVBT_CONSTELLATION_RESERVED_3 +}; + +enum cxd2880_dvbt_hierarchy { + CXD2880_DVBT_HIERARCHY_NON, + CXD2880_DVBT_HIERARCHY_1, + CXD2880_DVBT_HIERARCHY_2, + CXD2880_DVBT_HIERARCHY_4 +}; + +enum cxd2880_dvbt_coderate { + CXD2880_DVBT_CODERATE_1_2, + CXD2880_DVBT_CODERATE_2_3, + CXD2880_DVBT_CODERATE_3_4, + CXD2880_DVBT_CODERATE_5_6, + CXD2880_DVBT_CODERATE_7_8, + CXD2880_DVBT_CODERATE_RESERVED_5, + CXD2880_DVBT_CODERATE_RESERVED_6, + CXD2880_DVBT_CODERATE_RESERVED_7 +}; + +enum cxd2880_dvbt_guard { + CXD2880_DVBT_GUARD_1_32, + CXD2880_DVBT_GUARD_1_16, + CXD2880_DVBT_GUARD_1_8, + CXD2880_DVBT_GUARD_1_4 +}; + +enum cxd2880_dvbt_mode { + CXD2880_DVBT_MODE_2K, + CXD2880_DVBT_MODE_8K, + CXD2880_DVBT_MODE_RESERVED_2, + CXD2880_DVBT_MODE_RESERVED_3 +}; + +enum cxd2880_dvbt_profile { + CXD2880_DVBT_PROFILE_HP = 0, + CXD2880_DVBT_PROFILE_LP +}; + +struct cxd2880_dvbt_tpsinfo { + enum cxd2880_dvbt_constellation constellation; + enum cxd2880_dvbt_hierarchy hierarchy; + enum cxd2880_dvbt_coderate rate_hp; + enum cxd2880_dvbt_coderate rate_lp; + enum cxd2880_dvbt_guard guard; + enum cxd2880_dvbt_mode mode; + u8 fnum; + u8 length_indicator; + u16 cell_id; + u8 cell_id_ok; + u8 reserved_even; + u8 reserved_odd; +}; + +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_dvbt2.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_dvbt2.h new file mode 100644 index 0000000000000000000000000000000000000000..1870398cba9da50143a0c0d0774763edd8a31e78 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_dvbt2.h @@ -0,0 +1,402 @@ +/* + * cxd2880_dvbt2.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * DVB-T2 related definitions + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef CXD2880_DVBT2_H +#define CXD2880_DVBT2_H + +#include "cxd2880_common.h" + +enum cxd2880_dvbt2_profile { + CXD2880_DVBT2_PROFILE_BASE, + CXD2880_DVBT2_PROFILE_LITE, + CXD2880_DVBT2_PROFILE_ANY +}; + +enum cxd2880_dvbt2_version { + CXD2880_DVBT2_V111, + CXD2880_DVBT2_V121, + CXD2880_DVBT2_V131 +}; + +enum cxd2880_dvbt2_s1 { + CXD2880_DVBT2_S1_BASE_SISO = 0x00, + CXD2880_DVBT2_S1_BASE_MISO = 0x01, + CXD2880_DVBT2_S1_NON_DVBT2 = 0x02, + CXD2880_DVBT2_S1_LITE_SISO = 0x03, + CXD2880_DVBT2_S1_LITE_MISO = 0x04, + CXD2880_DVBT2_S1_RSVD3 = 0x05, + CXD2880_DVBT2_S1_RSVD4 = 0x06, + CXD2880_DVBT2_S1_RSVD5 = 0x07, + CXD2880_DVBT2_S1_UNKNOWN = 0xFF +}; + +enum cxd2880_dvbt2_base_s2 { + CXD2880_DVBT2_BASE_S2_M2K_G_ANY = 0x00, + CXD2880_DVBT2_BASE_S2_M8K_G_DVBT = 0x01, + CXD2880_DVBT2_BASE_S2_M4K_G_ANY = 0x02, + CXD2880_DVBT2_BASE_S2_M1K_G_ANY = 0x03, + CXD2880_DVBT2_BASE_S2_M16K_G_ANY = 0x04, + CXD2880_DVBT2_BASE_S2_M32K_G_DVBT = 0x05, + CXD2880_DVBT2_BASE_S2_M8K_G_DVBT2 = 0x06, + CXD2880_DVBT2_BASE_S2_M32K_G_DVBT2 = 0x07, + CXD2880_DVBT2_BASE_S2_UNKNOWN = 0xFF +}; + +enum cxd2880_dvbt2_lite_s2 { + CXD2880_DVBT2_LITE_S2_M2K_G_ANY = 0x00, + CXD2880_DVBT2_LITE_S2_M8K_G_DVBT = 0x01, + CXD2880_DVBT2_LITE_S2_M4K_G_ANY = 0x02, + CXD2880_DVBT2_LITE_S2_M16K_G_DVBT2 = 0x03, + CXD2880_DVBT2_LITE_S2_M16K_G_DVBT = 0x04, + CXD2880_DVBT2_LITE_S2_RSVD1 = 0x05, + CXD2880_DVBT2_LITE_S2_M8K_G_DVBT2 = 0x06, + CXD2880_DVBT2_LITE_S2_RSVD2 = 0x07, + CXD2880_DVBT2_LITE_S2_UNKNOWN = 0xFF +}; + +enum cxd2880_dvbt2_guard { + CXD2880_DVBT2_G1_32 = 0x00, + CXD2880_DVBT2_G1_16 = 0x01, + CXD2880_DVBT2_G1_8 = 0x02, + CXD2880_DVBT2_G1_4 = 0x03, + CXD2880_DVBT2_G1_128 = 0x04, + CXD2880_DVBT2_G19_128 = 0x05, + CXD2880_DVBT2_G19_256 = 0x06, + CXD2880_DVBT2_G_RSVD1 = 0x07, + CXD2880_DVBT2_G_UNKNOWN = 0xFF +}; + +enum cxd2880_dvbt2_mode { + CXD2880_DVBT2_M2K = 0x00, + CXD2880_DVBT2_M8K = 0x01, + CXD2880_DVBT2_M4K = 0x02, + CXD2880_DVBT2_M1K = 0x03, + CXD2880_DVBT2_M16K = 0x04, + CXD2880_DVBT2_M32K = 0x05, + CXD2880_DVBT2_M_RSVD1 = 0x06, + CXD2880_DVBT2_M_RSVD2 = 0x07 +}; + +enum cxd2880_dvbt2_bw { + CXD2880_DVBT2_BW_8 = 0x00, + CXD2880_DVBT2_BW_7 = 0x01, + CXD2880_DVBT2_BW_6 = 0x02, + CXD2880_DVBT2_BW_5 = 0x03, + CXD2880_DVBT2_BW_10 = 0x04, + CXD2880_DVBT2_BW_1_7 = 0x05, + CXD2880_DVBT2_BW_RSVD1 = 0x06, + CXD2880_DVBT2_BW_RSVD2 = 0x07, + CXD2880_DVBT2_BW_RSVD3 = 0x08, + CXD2880_DVBT2_BW_RSVD4 = 0x09, + CXD2880_DVBT2_BW_RSVD5 = 0x0A, + CXD2880_DVBT2_BW_RSVD6 = 0x0B, + CXD2880_DVBT2_BW_RSVD7 = 0x0C, + CXD2880_DVBT2_BW_RSVD8 = 0x0D, + CXD2880_DVBT2_BW_RSVD9 = 0x0E, + CXD2880_DVBT2_BW_RSVD10 = 0x0F, + CXD2880_DVBT2_BW_UNKNOWN = 0xFF +}; + +enum cxd2880_dvbt2_l1pre_type { + CXD2880_DVBT2_L1PRE_TYPE_TS = 0x00, + CXD2880_DVBT2_L1PRE_TYPE_GS = 0x01, + CXD2880_DVBT2_L1PRE_TYPE_TS_GS = 0x02, + CXD2880_DVBT2_L1PRE_TYPE_RESERVED = 0x03, + CXD2880_DVBT2_L1PRE_TYPE_UNKNOWN = 0xFF +}; + +enum cxd2880_dvbt2_papr { + CXD2880_DVBT2_PAPR_0 = 0x00, + CXD2880_DVBT2_PAPR_1 = 0x01, + CXD2880_DVBT2_PAPR_2 = 0x02, + CXD2880_DVBT2_PAPR_3 = 0x03, + CXD2880_DVBT2_PAPR_RSVD1 = 0x04, + CXD2880_DVBT2_PAPR_RSVD2 = 0x05, + CXD2880_DVBT2_PAPR_RSVD3 = 0x06, + CXD2880_DVBT2_PAPR_RSVD4 = 0x07, + CXD2880_DVBT2_PAPR_RSVD5 = 0x08, + CXD2880_DVBT2_PAPR_RSVD6 = 0x09, + CXD2880_DVBT2_PAPR_RSVD7 = 0x0A, + CXD2880_DVBT2_PAPR_RSVD8 = 0x0B, + CXD2880_DVBT2_PAPR_RSVD9 = 0x0C, + CXD2880_DVBT2_PAPR_RSVD10 = 0x0D, + CXD2880_DVBT2_PAPR_RSVD11 = 0x0E, + CXD2880_DVBT2_PAPR_RSVD12 = 0x0F, + CXD2880_DVBT2_PAPR_UNKNOWN = 0xFF +}; + +enum cxd2880_dvbt2_l1post_constell { + CXD2880_DVBT2_L1POST_BPSK = 0x00, + CXD2880_DVBT2_L1POST_QPSK = 0x01, + CXD2880_DVBT2_L1POST_QAM16 = 0x02, + CXD2880_DVBT2_L1POST_QAM64 = 0x03, + CXD2880_DVBT2_L1POST_C_RSVD1 = 0x04, + CXD2880_DVBT2_L1POST_C_RSVD2 = 0x05, + CXD2880_DVBT2_L1POST_C_RSVD3 = 0x06, + CXD2880_DVBT2_L1POST_C_RSVD4 = 0x07, + CXD2880_DVBT2_L1POST_C_RSVD5 = 0x08, + CXD2880_DVBT2_L1POST_C_RSVD6 = 0x09, + CXD2880_DVBT2_L1POST_C_RSVD7 = 0x0A, + CXD2880_DVBT2_L1POST_C_RSVD8 = 0x0B, + CXD2880_DVBT2_L1POST_C_RSVD9 = 0x0C, + CXD2880_DVBT2_L1POST_C_RSVD10 = 0x0D, + CXD2880_DVBT2_L1POST_C_RSVD11 = 0x0E, + CXD2880_DVBT2_L1POST_C_RSVD12 = 0x0F, + CXD2880_DVBT2_L1POST_CONSTELL_UNKNOWN = 0xFF +}; + +enum cxd2880_dvbt2_l1post_cr { + CXD2880_DVBT2_L1POST_R1_2 = 0x00, + CXD2880_DVBT2_L1POST_R_RSVD1 = 0x01, + CXD2880_DVBT2_L1POST_R_RSVD2 = 0x02, + CXD2880_DVBT2_L1POST_R_RSVD3 = 0x03, + CXD2880_DVBT2_L1POST_R_UNKNOWN = 0xFF +}; + +enum cxd2880_dvbt2_l1post_fec_type { + CXD2880_DVBT2_L1POST_FEC_LDPC16K = 0x00, + CXD2880_DVBT2_L1POST_FEC_RSVD1 = 0x01, + CXD2880_DVBT2_L1POST_FEC_RSVD2 = 0x02, + CXD2880_DVBT2_L1POST_FEC_RSVD3 = 0x03, + CXD2880_DVBT2_L1POST_FEC_UNKNOWN = 0xFF +}; + +enum cxd2880_dvbt2_pp { + CXD2880_DVBT2_PP1 = 0x00, + CXD2880_DVBT2_PP2 = 0x01, + CXD2880_DVBT2_PP3 = 0x02, + CXD2880_DVBT2_PP4 = 0x03, + CXD2880_DVBT2_PP5 = 0x04, + CXD2880_DVBT2_PP6 = 0x05, + CXD2880_DVBT2_PP7 = 0x06, + CXD2880_DVBT2_PP8 = 0x07, + CXD2880_DVBT2_PP_RSVD1 = 0x08, + CXD2880_DVBT2_PP_RSVD2 = 0x09, + CXD2880_DVBT2_PP_RSVD3 = 0x0A, + CXD2880_DVBT2_PP_RSVD4 = 0x0B, + CXD2880_DVBT2_PP_RSVD5 = 0x0C, + CXD2880_DVBT2_PP_RSVD6 = 0x0D, + CXD2880_DVBT2_PP_RSVD7 = 0x0E, + CXD2880_DVBT2_PP_RSVD8 = 0x0F, + CXD2880_DVBT2_PP_UNKNOWN = 0xFF +}; + +enum cxd2880_dvbt2_plp_code_rate { + CXD2880_DVBT2_R1_2 = 0x00, + CXD2880_DVBT2_R3_5 = 0x01, + CXD2880_DVBT2_R2_3 = 0x02, + CXD2880_DVBT2_R3_4 = 0x03, + CXD2880_DVBT2_R4_5 = 0x04, + CXD2880_DVBT2_R5_6 = 0x05, + CXD2880_DVBT2_R1_3 = 0x06, + CXD2880_DVBT2_R2_5 = 0x07, + CXD2880_DVBT2_PLP_CR_UNKNOWN = 0xFF +}; + +enum cxd2880_dvbt2_plp_constell { + CXD2880_DVBT2_QPSK = 0x00, + CXD2880_DVBT2_QAM16 = 0x01, + CXD2880_DVBT2_QAM64 = 0x02, + CXD2880_DVBT2_QAM256 = 0x03, + CXD2880_DVBT2_CON_RSVD1 = 0x04, + CXD2880_DVBT2_CON_RSVD2 = 0x05, + CXD2880_DVBT2_CON_RSVD3 = 0x06, + CXD2880_DVBT2_CON_RSVD4 = 0x07, + CXD2880_DVBT2_CONSTELL_UNKNOWN = 0xFF +}; + +enum cxd2880_dvbt2_plp_type { + CXD2880_DVBT2_PLP_TYPE_COMMON = 0x00, + CXD2880_DVBT2_PLP_TYPE_DATA1 = 0x01, + CXD2880_DVBT2_PLP_TYPE_DATA2 = 0x02, + CXD2880_DVBT2_PLP_TYPE_RSVD1 = 0x03, + CXD2880_DVBT2_PLP_TYPE_RSVD2 = 0x04, + CXD2880_DVBT2_PLP_TYPE_RSVD3 = 0x05, + CXD2880_DVBT2_PLP_TYPE_RSVD4 = 0x06, + CXD2880_DVBT2_PLP_TYPE_RSVD5 = 0x07, + CXD2880_DVBT2_PLP_TYPE_UNKNOWN = 0xFF +}; + +enum cxd2880_dvbt2_plp_payload { + CXD2880_DVBT2_PLP_PAYLOAD_GFPS = 0x00, + CXD2880_DVBT2_PLP_PAYLOAD_GCS = 0x01, + CXD2880_DVBT2_PLP_PAYLOAD_GSE = 0x02, + CXD2880_DVBT2_PLP_PAYLOAD_TS = 0x03, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD1 = 0x04, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD2 = 0x05, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD3 = 0x06, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD4 = 0x07, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD5 = 0x08, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD6 = 0x09, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD7 = 0x0A, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD8 = 0x0B, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD9 = 0x0C, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD10 = 0x0D, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD11 = 0x0E, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD12 = 0x0F, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD13 = 0x10, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD14 = 0x11, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD15 = 0x12, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD16 = 0x13, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD17 = 0x14, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD18 = 0x15, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD19 = 0x16, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD20 = 0x17, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD21 = 0x18, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD22 = 0x19, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD23 = 0x1A, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD24 = 0x1B, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD25 = 0x1C, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD26 = 0x1D, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD27 = 0x1E, + CXD2880_DVBT2_PLP_PAYLOAD_RSVD28 = 0x1F, + CXD2880_DVBT2_PLP_PAYLOAD_UNKNOWN = 0xFF +}; + +enum cxd2880_dvbt2_plp_fec { + CXD2880_DVBT2_FEC_LDPC_16K = 0x00, + CXD2880_DVBT2_FEC_LDPC_64K = 0x01, + CXD2880_DVBT2_FEC_RSVD1 = 0x02, + CXD2880_DVBT2_FEC_RSVD2 = 0x03, + CXD2880_DVBT2_FEC_UNKNOWN = 0xFF +}; + +enum cxd2880_dvbt2_plp_mode { + CXD2880_DVBT2_PLP_MODE_NOTSPECIFIED = 0x00, + CXD2880_DVBT2_PLP_MODE_NM = 0x01, + CXD2880_DVBT2_PLP_MODE_HEM = 0x02, + CXD2880_DVBT2_PLP_MODE_RESERVED = 0x03, + CXD2880_DVBT2_PLP_MODE_UNKNOWN = 0xFF +}; + +enum cxd2880_dvbt2_plp_btype { + CXD2880_DVBT2_PLP_COMMON, + CXD2880_DVBT2_PLP_DATA +}; + +enum cxd2880_dvbt2_stream { + CXD2880_DVBT2_STREAM_GENERIC_PACKETIZED = 0x00, + CXD2880_DVBT2_STREAM_GENERIC_CONTINUOUS = 0x01, + CXD2880_DVBT2_STREAM_GENERIC_ENCAPSULATED = 0x02, + CXD2880_DVBT2_STREAM_TRANSPORT = 0x03, + CXD2880_DVBT2_STREAM_UNKNOWN = 0xFF +}; + +struct cxd2880_dvbt2_l1pre { + enum cxd2880_dvbt2_l1pre_type type; + u8 bw_ext; + enum cxd2880_dvbt2_s1 s1; + u8 s2; + u8 mixed; + enum cxd2880_dvbt2_mode fft_mode; + u8 l1_rep; + enum cxd2880_dvbt2_guard gi; + enum cxd2880_dvbt2_papr papr; + enum cxd2880_dvbt2_l1post_constell mod; + enum cxd2880_dvbt2_l1post_cr cr; + enum cxd2880_dvbt2_l1post_fec_type fec; + u32 l1_post_size; + u32 l1_post_info_size; + enum cxd2880_dvbt2_pp pp; + u8 tx_id_availability; + u16 cell_id; + u16 network_id; + u16 sys_id; + u8 num_frames; + u16 num_symbols; + u8 regen; + u8 post_ext; + u8 num_rf_freqs; + u8 rf_idx; + enum cxd2880_dvbt2_version t2_version; + u8 l1_post_scrambled; + u8 t2_base_lite; + u32 crc32; +}; + +struct cxd2880_dvbt2_plp { + u8 id; + enum cxd2880_dvbt2_plp_type type; + enum cxd2880_dvbt2_plp_payload payload; + u8 ff; + u8 first_rf_idx; + u8 first_frm_idx; + u8 group_id; + enum cxd2880_dvbt2_plp_constell constell; + enum cxd2880_dvbt2_plp_code_rate plp_cr; + u8 rot; + enum cxd2880_dvbt2_plp_fec fec; + u16 num_blocks_max; + u8 frm_int; + u8 til_len; + u8 til_type; + u8 in_band_a_flag; + u8 in_band_b_flag; + u16 rsvd; + enum cxd2880_dvbt2_plp_mode plp_mode; + u8 static_flag; + u8 static_padding_flag; +}; + +struct cxd2880_dvbt2_l1post { + u16 sub_slices_per_frame; + u8 num_plps; + u8 num_aux; + u8 aux_cfg_rfu; + u8 rf_idx; + u32 freq; + u8 fef_type; + u32 fef_length; + u8 fef_intvl; +}; + +struct cxd2880_dvbt2_ofdm { + u8 mixed; + u8 is_miso; + enum cxd2880_dvbt2_mode mode; + enum cxd2880_dvbt2_guard gi; + enum cxd2880_dvbt2_pp pp; + u8 bw_ext; + enum cxd2880_dvbt2_papr papr; + u16 num_symbols; +}; + +struct cxd2880_dvbt2_bbheader { + enum cxd2880_dvbt2_stream stream_input; + u8 is_single_input_stream; + u8 is_constant_coding_modulation; + u8 issy_indicator; + u8 null_packet_deletion; + u8 ext; + u8 input_stream_identifier; + u16 user_packet_length; + u16 data_field_length; + u8 sync_byte; + u32 issy; + enum cxd2880_dvbt2_plp_mode plp_mode; +}; + +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_integ.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ.c new file mode 100644 index 0000000000000000000000000000000000000000..5ad6685e2a1d457c5a9b8d31a1d6f4aed526dd04 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ.c @@ -0,0 +1,99 @@ +/* + * cxd2880_integ.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * integration layer common functions + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include "cxd2880_tnrdmd.h" +#include "cxd2880_tnrdmd_mon.h" +#include "cxd2880_integ.h" + +enum cxd2880_ret cxd2880_integ_init(struct cxd2880_tnrdmd *tnr_dmd) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + struct cxd2880_stopwatch timer; + u32 elapsed_time = 0; + u8 cpu_task_completed = 0; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + ret = cxd2880_tnrdmd_init1(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = cxd2880_stopwatch_start(&timer); + if (ret != CXD2880_RESULT_OK) + return ret; + + while (1) { + ret = cxd2880_stopwatch_elapsed(&timer, &elapsed_time); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = + cxd2880_tnrdmd_check_internal_cpu_status(tnr_dmd, + &cpu_task_completed); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (cpu_task_completed) + break; + + if (elapsed_time > CXD2880_TNRDMD_WAIT_INIT_TIMEOUT) + return CXD2880_RESULT_ERROR_TIMEOUT; + ret = + cxd2880_stopwatch_sleep(&timer, + CXD2880_TNRDMD_WAIT_INIT_INTVL); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + ret = cxd2880_tnrdmd_init2(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_integ_cancel(struct cxd2880_tnrdmd *tnr_dmd) +{ + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + cxd2880_atomic_set(&tnr_dmd->cancel, 1); + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_integ_check_cancellation(struct cxd2880_tnrdmd + *tnr_dmd) +{ + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (cxd2880_atomic_read(&tnr_dmd->cancel) != 0) + return CXD2880_RESULT_ERROR_CANCEL; + + return CXD2880_RESULT_OK; +} diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_integ.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ.h new file mode 100644 index 0000000000000000000000000000000000000000..9cfc52dbf9d4fc128506ee355461cd6ca9f9ab53 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ.h @@ -0,0 +1,44 @@ +/* + * cxd2880_integ.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * integration layer common interface + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef CXD2880_INTEG_H +#define CXD2880_INTEG_H + +#include "cxd2880_tnrdmd.h" + +#define CXD2880_TNRDMD_WAIT_INIT_TIMEOUT 500 +#define CXD2880_TNRDMD_WAIT_INIT_INTVL 10 + +#define CXD2880_TNRDMD_WAIT_AGC_STABLE 100 + +enum cxd2880_ret cxd2880_integ_init(struct cxd2880_tnrdmd *tnr_dmd); + +enum cxd2880_ret cxd2880_integ_cancel(struct cxd2880_tnrdmd *tnr_dmd); + +enum cxd2880_ret cxd2880_integ_check_cancellation(struct cxd2880_tnrdmd + *tnr_dmd); + +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt.c new file mode 100644 index 0000000000000000000000000000000000000000..43b7da69fc6d689c2246047d06473074f48f69e8 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt.c @@ -0,0 +1,197 @@ +/* + * cxd2880_integ_dvbt.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * integration layer functions for DVB-T + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include "cxd2880_tnrdmd_dvbt.h" +#include "cxd2880_integ_dvbt.h" + +static enum cxd2880_ret dvbt_wait_demod_lock(struct cxd2880_tnrdmd *tnr_dmd); + +enum cxd2880_ret cxd2880_integ_dvbt_tune(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_dvbt_tune_param + *tune_param) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!tune_param)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + cxd2880_atomic_set(&tnr_dmd->cancel, 0); + + if ((tune_param->bandwidth != CXD2880_DTV_BW_5_MHZ) && + (tune_param->bandwidth != CXD2880_DTV_BW_6_MHZ) && + (tune_param->bandwidth != CXD2880_DTV_BW_7_MHZ) && + (tune_param->bandwidth != CXD2880_DTV_BW_8_MHZ)) { + return CXD2880_RESULT_ERROR_NOSUPPORT; + } + + ret = cxd2880_tnrdmd_dvbt_tune1(tnr_dmd, tune_param); + if (ret != CXD2880_RESULT_OK) + return ret; + + CXD2880_SLEEP(CXD2880_TNRDMD_WAIT_AGC_STABLE); + + ret = cxd2880_tnrdmd_dvbt_tune2(tnr_dmd, tune_param); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = dvbt_wait_demod_lock(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + return ret; +} + +enum cxd2880_ret cxd2880_integ_dvbt_wait_ts_lock(struct cxd2880_tnrdmd *tnr_dmd) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + enum cxd2880_tnrdmd_lock_result lock = + CXD2880_TNRDMD_LOCK_RESULT_NOTDETECT; + struct cxd2880_stopwatch timer; + u8 continue_wait = 1; + u32 elapsed = 0; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = cxd2880_stopwatch_start(&timer); + if (ret != CXD2880_RESULT_OK) + return ret; + + for (;;) { + ret = cxd2880_stopwatch_elapsed(&timer, &elapsed); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (elapsed >= CXD2880_DVBT_WAIT_TS_LOCK) + continue_wait = 0; + + ret = cxd2880_tnrdmd_dvbt_check_ts_lock(tnr_dmd, &lock); + if (ret != CXD2880_RESULT_OK) + return ret; + + switch (lock) { + case CXD2880_TNRDMD_LOCK_RESULT_LOCKED: + return CXD2880_RESULT_OK; + + case CXD2880_TNRDMD_LOCK_RESULT_UNLOCKED: + return CXD2880_RESULT_ERROR_UNLOCK; + + default: + break; + } + + ret = cxd2880_integ_check_cancellation(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (continue_wait) { + ret = + cxd2880_stopwatch_sleep(&timer, + CXD2880_DVBT_WAIT_LOCK_INTVL); + if (ret != CXD2880_RESULT_OK) + return ret; + } else { + ret = CXD2880_RESULT_ERROR_TIMEOUT; + break; + } + } + + return ret; +} + +static enum cxd2880_ret dvbt_wait_demod_lock(struct cxd2880_tnrdmd *tnr_dmd) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + enum cxd2880_tnrdmd_lock_result lock = + CXD2880_TNRDMD_LOCK_RESULT_NOTDETECT; + struct cxd2880_stopwatch timer; + u8 continue_wait = 1; + u32 elapsed = 0; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = cxd2880_stopwatch_start(&timer); + if (ret != CXD2880_RESULT_OK) + return ret; + + for (;;) { + ret = cxd2880_stopwatch_elapsed(&timer, &elapsed); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (elapsed >= CXD2880_DVBT_WAIT_DMD_LOCK) + continue_wait = 0; + + ret = cxd2880_tnrdmd_dvbt_check_demod_lock(tnr_dmd, &lock); + if (ret != CXD2880_RESULT_OK) + return ret; + + switch (lock) { + case CXD2880_TNRDMD_LOCK_RESULT_LOCKED: + return CXD2880_RESULT_OK; + + case CXD2880_TNRDMD_LOCK_RESULT_UNLOCKED: + return CXD2880_RESULT_ERROR_UNLOCK; + + default: + break; + } + + ret = cxd2880_integ_check_cancellation(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (continue_wait) { + ret = + cxd2880_stopwatch_sleep(&timer, + CXD2880_DVBT_WAIT_LOCK_INTVL); + if (ret != CXD2880_RESULT_OK) + return ret; + } else { + ret = CXD2880_RESULT_ERROR_TIMEOUT; + break; + } + } + + return ret; +} diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt.h new file mode 100644 index 0000000000000000000000000000000000000000..41f35c07a15e5052d3c09a21f1cc5c2085158690 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt.h @@ -0,0 +1,58 @@ +/* + * cxd2880_integ_dvbt.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * integration layer interface for DVB-T + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef CXD2880_INTEG_DVBT_H +#define CXD2880_INTEG_DVBT_H + +#include "cxd2880_tnrdmd.h" +#include "cxd2880_tnrdmd_dvbt.h" +#include "cxd2880_integ.h" + +#define CXD2880_DVBT_WAIT_DMD_LOCK 1000 +#define CXD2880_DVBT_WAIT_TS_LOCK 1000 +#define CXD2880_DVBT_WAIT_LOCK_INTVL 10 + +struct cxd2880_integ_dvbt_scan_param { + u32 start_frequency_khz; + u32 end_frequency_khz; + u32 step_frequency_khz; + enum cxd2880_dtv_bandwidth bandwidth; +}; + +struct cxd2880_integ_dvbt_scan_result { + u32 center_freq_khz; + enum cxd2880_ret tune_result; + struct cxd2880_dvbt_tune_param dvbt_tune_param; +}; + +enum cxd2880_ret cxd2880_integ_dvbt_tune(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_dvbt_tune_param + *tune_param); + +enum cxd2880_ret cxd2880_integ_dvbt_wait_ts_lock(struct cxd2880_tnrdmd + *tnr_dmd); + +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt2.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt2.c new file mode 100644 index 0000000000000000000000000000000000000000..1d60b9c236d844df239e3adfa0da40192555c7ee --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt2.c @@ -0,0 +1,311 @@ +/* + * cxd2880_integ_dvbt2.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * integration layer functions for DVB-T2 + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include "cxd2880_tnrdmd_dvbt2.h" +#include "cxd2880_tnrdmd_dvbt2_mon.h" +#include "cxd2880_integ_dvbt2.h" + +static enum cxd2880_ret dvbt2_wait_demod_lock(struct cxd2880_tnrdmd *tnr_dmd, + enum cxd2880_dvbt2_profile + profile); + +static enum cxd2880_ret dvbt2_wait_l1_post_lock(struct cxd2880_tnrdmd *tnr_dmd); + +enum cxd2880_ret cxd2880_integ_dvbt2_tune(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_dvbt2_tune_param + *tune_param) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!tune_param)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + cxd2880_atomic_set(&tnr_dmd->cancel, 0); + + if ((tune_param->bandwidth != CXD2880_DTV_BW_1_7_MHZ) && + (tune_param->bandwidth != CXD2880_DTV_BW_5_MHZ) && + (tune_param->bandwidth != CXD2880_DTV_BW_6_MHZ) && + (tune_param->bandwidth != CXD2880_DTV_BW_7_MHZ) && + (tune_param->bandwidth != CXD2880_DTV_BW_8_MHZ)) { + return CXD2880_RESULT_ERROR_NOSUPPORT; + } + + if ((tune_param->profile != CXD2880_DVBT2_PROFILE_BASE) && + (tune_param->profile != CXD2880_DVBT2_PROFILE_LITE)) + return CXD2880_RESULT_ERROR_ARG; + + ret = cxd2880_tnrdmd_dvbt2_tune1(tnr_dmd, tune_param); + if (ret != CXD2880_RESULT_OK) + return ret; + + CXD2880_SLEEP(CXD2880_TNRDMD_WAIT_AGC_STABLE); + + ret = cxd2880_tnrdmd_dvbt2_tune2(tnr_dmd, tune_param); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = dvbt2_wait_demod_lock(tnr_dmd, tune_param->profile); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = cxd2880_tnrdmd_dvbt2_diver_fef_setting(tnr_dmd); + if (ret == CXD2880_RESULT_ERROR_HW_STATE) + return CXD2880_RESULT_ERROR_UNLOCK; + else if (ret != CXD2880_RESULT_OK) + return ret; + + ret = dvbt2_wait_l1_post_lock(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + { + u8 plp_not_found; + + ret = + cxd2880_tnrdmd_dvbt2_mon_data_plp_error(tnr_dmd, + &plp_not_found); + if (ret == CXD2880_RESULT_ERROR_HW_STATE) + return CXD2880_RESULT_ERROR_UNLOCK; + else if (ret != CXD2880_RESULT_OK) + return ret; + + if (plp_not_found) { + ret = CXD2880_RESULT_OK_CONFIRM; + tune_param->tune_info = + CXD2880_TNRDMD_DVBT2_TUNE_INFO_INVALID_PLP_ID; + } else { + tune_param->tune_info = + CXD2880_TNRDMD_DVBT2_TUNE_INFO_OK; + } + } + + return ret; +} + +enum cxd2880_ret cxd2880_integ_dvbt2_wait_ts_lock(struct cxd2880_tnrdmd + *tnr_dmd, + enum cxd2880_dvbt2_profile + profile) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + enum cxd2880_tnrdmd_lock_result lock = + CXD2880_TNRDMD_LOCK_RESULT_NOTDETECT; + u16 timeout = 0; + struct cxd2880_stopwatch timer; + u8 continue_wait = 1; + u32 elapsed = 0; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = cxd2880_stopwatch_start(&timer); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (profile == CXD2880_DVBT2_PROFILE_BASE) + timeout = CXD2880_DVBT2_BASE_WAIT_TS_LOCK; + else if (profile == CXD2880_DVBT2_PROFILE_LITE) + timeout = CXD2880_DVBT2_LITE_WAIT_TS_LOCK; + else + return CXD2880_RESULT_ERROR_ARG; + + for (;;) { + ret = cxd2880_stopwatch_elapsed(&timer, &elapsed); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (elapsed >= timeout) + continue_wait = 0; + + ret = cxd2880_tnrdmd_dvbt2_check_ts_lock(tnr_dmd, &lock); + if (ret != CXD2880_RESULT_OK) + return ret; + + switch (lock) { + case CXD2880_TNRDMD_LOCK_RESULT_LOCKED: + return CXD2880_RESULT_OK; + + case CXD2880_TNRDMD_LOCK_RESULT_UNLOCKED: + return CXD2880_RESULT_ERROR_UNLOCK; + + default: + break; + } + + ret = cxd2880_integ_check_cancellation(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (continue_wait) { + ret = + cxd2880_stopwatch_sleep(&timer, + CXD2880_DVBT2_WAIT_LOCK_INTVL); + if (ret != CXD2880_RESULT_OK) + return ret; + } else { + ret = CXD2880_RESULT_ERROR_TIMEOUT; + break; + } + } + + return ret; +} + +static enum cxd2880_ret dvbt2_wait_demod_lock(struct cxd2880_tnrdmd *tnr_dmd, + enum cxd2880_dvbt2_profile + profile) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + enum cxd2880_tnrdmd_lock_result lock = + CXD2880_TNRDMD_LOCK_RESULT_NOTDETECT; + u16 timeout = 0; + struct cxd2880_stopwatch timer; + u8 continue_wait = 1; + u32 elapsed = 0; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = cxd2880_stopwatch_start(&timer); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (profile == CXD2880_DVBT2_PROFILE_BASE) + timeout = CXD2880_DVBT2_BASE_WAIT_DMD_LOCK; + else if ((profile == CXD2880_DVBT2_PROFILE_LITE) || + (profile == CXD2880_DVBT2_PROFILE_ANY)) + timeout = CXD2880_DVBT2_LITE_WAIT_DMD_LOCK; + else + return CXD2880_RESULT_ERROR_SW_STATE; + + for (;;) { + ret = cxd2880_stopwatch_elapsed(&timer, &elapsed); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (elapsed >= timeout) + continue_wait = 0; + + ret = cxd2880_tnrdmd_dvbt2_check_demod_lock(tnr_dmd, &lock); + if (ret != CXD2880_RESULT_OK) + return ret; + + switch (lock) { + case CXD2880_TNRDMD_LOCK_RESULT_LOCKED: + return CXD2880_RESULT_OK; + + case CXD2880_TNRDMD_LOCK_RESULT_UNLOCKED: + return CXD2880_RESULT_ERROR_UNLOCK; + + default: + break; + } + + ret = cxd2880_integ_check_cancellation(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (continue_wait) { + ret = + cxd2880_stopwatch_sleep(&timer, + CXD2880_DVBT2_WAIT_LOCK_INTVL); + if (ret != CXD2880_RESULT_OK) + return ret; + } else { + ret = CXD2880_RESULT_ERROR_TIMEOUT; + break; + } + } + + return ret; +} + +static enum cxd2880_ret dvbt2_wait_l1_post_lock(struct cxd2880_tnrdmd *tnr_dmd) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + struct cxd2880_stopwatch timer; + u8 continue_wait = 1; + u32 elapsed = 0; + u8 l1_post_valid; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + ret = cxd2880_stopwatch_start(&timer); + if (ret != CXD2880_RESULT_OK) + return ret; + + for (;;) { + ret = cxd2880_stopwatch_elapsed(&timer, &elapsed); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (elapsed >= CXD2880_DVBT2_L1POST_TIMEOUT) + continue_wait = 0; + + ret = + cxd2880_tnrdmd_dvbt2_check_l1post_valid(tnr_dmd, + &l1_post_valid); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (l1_post_valid) + return CXD2880_RESULT_OK; + + ret = cxd2880_integ_check_cancellation(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (continue_wait) { + ret = + cxd2880_stopwatch_sleep(&timer, + CXD2880_DVBT2_WAIT_LOCK_INTVL); + if (ret != CXD2880_RESULT_OK) + return ret; + } else { + ret = CXD2880_RESULT_ERROR_TIMEOUT; + break; + } + } + + return ret; +} diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt2.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt2.h new file mode 100644 index 0000000000000000000000000000000000000000..bc72eb8188f2e5304cef7db687291b56eb728f8d --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt2.h @@ -0,0 +1,64 @@ +/* + * cxd2880_integ_dvbt2.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * integration layer interface for DVB-T2 + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef CXD2880_INTEG_DVBT2_H +#define CXD2880_INTEG_DVBT2_H + +#include "cxd2880_tnrdmd.h" +#include "cxd2880_tnrdmd_dvbt2.h" +#include "cxd2880_integ.h" + +#define CXD2880_DVBT2_BASE_WAIT_DMD_LOCK 3500 +#define CXD2880_DVBT2_BASE_WAIT_TS_LOCK 1500 +#define CXD2880_DVBT2_LITE_WAIT_DMD_LOCK 5000 +#define CXD2880_DVBT2_LITE_WAIT_TS_LOCK 2300 +#define CXD2880_DVBT2_WAIT_LOCK_INTVL 10 +#define CXD2880_DVBT2_L1POST_TIMEOUT 500 + +struct cxd2880_integ_dvbt2_scan_param { + u32 start_frequency_khz; + u32 end_frequency_khz; + u32 step_frequency_khz; + enum cxd2880_dtv_bandwidth bandwidth; + enum cxd2880_dvbt2_profile t2_profile; +}; + +struct cxd2880_integ_dvbt2_scan_result { + u32 center_freq_khz; + enum cxd2880_ret tune_result; + struct cxd2880_dvbt2_tune_param dvbt2_tune_param; +}; + +enum cxd2880_ret cxd2880_integ_dvbt2_tune(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_dvbt2_tune_param + *tune_param); + +enum cxd2880_ret cxd2880_integ_dvbt2_wait_ts_lock(struct cxd2880_tnrdmd + *tnr_dmd, + enum cxd2880_dvbt2_profile + profile); + +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_io.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_io.c new file mode 100644 index 0000000000000000000000000000000000000000..f0f82055a953337a3fed96feedc2ca5b8d961c4f --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_io.c @@ -0,0 +1,68 @@ +/* + * cxd2880_io.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * register I/O interface functions + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include "cxd2880_io.h" + +enum cxd2880_ret cxd2880_io_common_write_one_reg(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, + u8 sub_address, u8 data) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!io) + return CXD2880_RESULT_ERROR_ARG; + + ret = io->write_regs(io, tgt, sub_address, &data, 1); + + return ret; +} + +enum cxd2880_ret cxd2880_io_set_reg_bits(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, + u8 sub_address, u8 data, u8 mask) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!io) + return CXD2880_RESULT_ERROR_ARG; + + if (mask == 0x00) + return CXD2880_RESULT_OK; + + if (mask != 0xFF) { + u8 rdata = 0x00; + + ret = io->read_regs(io, tgt, sub_address, &rdata, 1); + if (ret != CXD2880_RESULT_OK) + return ret; + + data = (u8)((data & mask) | (rdata & (mask ^ 0xFF))); + } + + ret = io->write_reg(io, tgt, sub_address, data); + + return ret; +} diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_io.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_io.h new file mode 100644 index 0000000000000000000000000000000000000000..4d6db13cf9109373eb1262218b853ef37283958b --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_io.h @@ -0,0 +1,62 @@ +/* + * cxd2880_io.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * register I/O interface definitions + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef CXD2880_IO_H +#define CXD2880_IO_H + +#include "cxd2880_common.h" + +enum cxd2880_io_tgt { + CXD2880_IO_TGT_SYS, + CXD2880_IO_TGT_DMD +}; + +struct cxd2880_io { + enum cxd2880_ret (*read_regs)(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, u8 sub_address, + u8 *data, u32 size); + enum cxd2880_ret (*write_regs)(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, u8 sub_address, + const u8 *data, u32 size); + enum cxd2880_ret (*write_reg)(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, u8 sub_address, + u8 data); + void *if_object; + u8 i2c_address_sys; + u8 i2c_address_demod; + u8 slave_select; + void *user; +}; + +enum cxd2880_ret cxd2880_io_common_write_one_reg(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, + u8 sub_address, u8 data); + +enum cxd2880_ret cxd2880_io_set_reg_bits(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, + u8 sub_address, u8 data, u8 mask); + +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_math.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_math.c new file mode 100644 index 0000000000000000000000000000000000000000..434c827898ff5f4a44bcc013fa7df43c168cafc4 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_math.c @@ -0,0 +1,89 @@ +/* + * cxd2880_math.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * mathmatics functions + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include "cxd2880_math.h" + +#define MAX_BIT_PRECISION 5 +#define FRAC_BITMASK 0x1F +#define LOG2_10_100X 332 +#define LOG2_E_100X 144 + +static const u8 log2_look_up[] = { + 0, 4, + 9, 13, + 17, 21, + 25, 29, + 32, 36, + 39, 43, + 46, 49, + 52, 55, + 58, 61, + 64, 67, + 70, 73, + 75, 78, + 81, 83, + 86, 88, + 91, 93, + 95, 98 +}; + +u32 cxd2880_math_log2(u32 x) +{ + u8 count = 0; + u8 index = 0; + u32 xval = x; + + for (x >>= 1; x > 0; x >>= 1) + count++; + + x = count * 100; + + if (count > 0) { + if (count <= MAX_BIT_PRECISION) { + index = + (u8)(xval << (MAX_BIT_PRECISION - count)) & + FRAC_BITMASK; + x += log2_look_up[index]; + } else { + index = + (u8)(xval >> (count - MAX_BIT_PRECISION)) & + FRAC_BITMASK; + x += log2_look_up[index]; + } + } + + return x; +} + +u32 cxd2880_math_log10(u32 x) +{ + return ((100 * cxd2880_math_log2(x) + LOG2_10_100X / 2) / LOG2_10_100X); +} + +u32 cxd2880_math_log(u32 x) +{ + return ((100 * cxd2880_math_log2(x) + LOG2_E_100X / 2) / LOG2_E_100X); +} diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_math.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_math.h new file mode 100644 index 0000000000000000000000000000000000000000..94211835a4adca74e4ddad3ea417f01d9f8eedef --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_math.h @@ -0,0 +1,40 @@ +/* + * cxd2880_math.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * mathmatics definitions + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef CXD2880_MATH_H_ +#define CXD2880_MATH_H_ + +#include "cxd2880_common.h" + +u32 cxd2880_math_log2(u32 x); +u32 cxd2880_math_log10(u32 x); +u32 cxd2880_math_log(u32 x); + +#ifndef min +#define min(a, b) (((a) < (b)) ? (a) : (b)) +#endif + +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_spi.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_spi.h new file mode 100644 index 0000000000000000000000000000000000000000..81e5be7479623e536f6b472a38ae8af785291506 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_spi.h @@ -0,0 +1,51 @@ +/* + * cxd2880_spi.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * SPI access definitions + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef CXD2880_SPI_H +#define CXD2880_SPI_H + +#include "cxd2880_common.h" + +enum cxd2880_spi_mode { + CXD2880_SPI_MODE_0, + CXD2880_SPI_MODE_1, + CXD2880_SPI_MODE_2, + CXD2880_SPI_MODE_3 +}; + +struct cxd2880_spi { + enum cxd2880_ret (*read)(struct cxd2880_spi *spi, u8 *data, + u32 size); + enum cxd2880_ret (*write)(struct cxd2880_spi *spi, const u8 *data, + u32 size); + enum cxd2880_ret (*write_read)(struct cxd2880_spi *spi, + const u8 *tx_data, u32 tx_size, + u8 *rx_data, u32 rx_size); + u32 flags; + void *user; +}; + +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_spi_device.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_spi_device.c new file mode 100644 index 0000000000000000000000000000000000000000..af9ed40c900b09c0566748d56991573965233ab4 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_spi_device.c @@ -0,0 +1,130 @@ +/* + * cxd2880_spi_device.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * SPI access functions + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include + +#include "cxd2880_spi_device.h" + +static enum cxd2880_ret cxd2880_spi_device_write(struct cxd2880_spi *spi, + const u8 *data, u32 size) +{ + struct cxd2880_spi_device *spi_device = NULL; + struct spi_message msg; + struct spi_transfer tx; + int result = 0; + + if ((!spi) || (!spi->user) || (!data) || (size == 0)) + return CXD2880_RESULT_ERROR_ARG; + + spi_device = (struct cxd2880_spi_device *)(spi->user); + + memset(&tx, 0, sizeof(tx)); + tx.tx_buf = data; + tx.len = size; + + spi_message_init(&msg); + spi_message_add_tail(&tx, &msg); + result = spi_sync(spi_device->spi, &msg); + + if (result < 0) + return CXD2880_RESULT_ERROR_IO; + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret cxd2880_spi_device_write_read(struct cxd2880_spi *spi, + const u8 *tx_data, + u32 tx_size, + u8 *rx_data, + u32 rx_size) +{ + struct cxd2880_spi_device *spi_device = NULL; + int result = 0; + + if ((!spi) || (!spi->user) || (!tx_data) || + (tx_size == 0) || (!rx_data) || (rx_size == 0)) + return CXD2880_RESULT_ERROR_ARG; + + spi_device = (struct cxd2880_spi_device *)(spi->user); + + result = spi_write_then_read(spi_device->spi, tx_data, + tx_size, rx_data, rx_size); + if (result < 0) + return CXD2880_RESULT_ERROR_IO; + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret +cxd2880_spi_device_initialize(struct cxd2880_spi_device *spi_device, + enum cxd2880_spi_mode mode, + u32 speed_hz) +{ + int result = 0; + struct spi_device *spi = spi_device->spi; + + switch (mode) { + case CXD2880_SPI_MODE_0: + spi->mode = SPI_MODE_0; + break; + case CXD2880_SPI_MODE_1: + spi->mode = SPI_MODE_1; + break; + case CXD2880_SPI_MODE_2: + spi->mode = SPI_MODE_2; + break; + case CXD2880_SPI_MODE_3: + spi->mode = SPI_MODE_3; + break; + default: + return CXD2880_RESULT_ERROR_ARG; + } + + spi->max_speed_hz = speed_hz; + spi->bits_per_word = 8; + result = spi_setup(spi); + if (result != 0) { + pr_err("spi_setup failed %d\n", result); + return CXD2880_RESULT_ERROR_ARG; + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_spi_device_create_spi(struct cxd2880_spi *spi, + struct cxd2880_spi_device *spi_device) +{ + if ((!spi) || (!spi_device)) + return CXD2880_RESULT_ERROR_ARG; + + spi->read = NULL; + spi->write = cxd2880_spi_device_write; + spi->write_read = cxd2880_spi_device_write_read; + spi->flags = 0; + spi->user = spi_device; + + return CXD2880_RESULT_OK; +} diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_spi_device.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_spi_device.h new file mode 100644 index 0000000000000000000000000000000000000000..343d9161d537b2eb5bcc61e5cbd4c9fa04f5f8fe --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_spi_device.h @@ -0,0 +1,45 @@ +/* + * cxd2880_spi_device.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * SPI access interface + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef CXD2880_SPI_DEVICE_H +#define CXD2880_SPI_DEVICE_H + +#include "cxd2880_spi.h" + +struct cxd2880_spi_device { + struct spi_device *spi; +}; + +enum cxd2880_ret +cxd2880_spi_device_initialize(struct cxd2880_spi_device *spi_device, + enum cxd2880_spi_mode mode, + u32 speedHz); + +enum cxd2880_ret +cxd2880_spi_device_create_spi(struct cxd2880_spi *spi, + struct cxd2880_spi_device *spi_device); + +#endif /* CXD2880_SPI_DEVICE_H */ diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_stdlib.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_stdlib.h new file mode 100644 index 0000000000000000000000000000000000000000..b9ca1b9df1101b3a1cd78db593c9f36b08f67e01 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_stdlib.h @@ -0,0 +1,35 @@ +/* + * cxd2880_stdlib.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * standard lib function aliases + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef CXD2880_STDLIB_H +#define CXD2880_STDLIB_H + +#include + +#define cxd2880_memcpy memcpy +#define cxd2880_memset memset + +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_stopwatch_port.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_stopwatch_port.c new file mode 100644 index 0000000000000000000000000000000000000000..14ad6aa6c4c0500c0e0ed59ab1c28f1dfe13f1d3 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_stopwatch_port.c @@ -0,0 +1,71 @@ +/* + * cxd2880_stopwatch_port.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * time measurement functions + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include "cxd2880_common.h" + +#include +#include +#include + +static u32 get_time_count(void) +{ + struct timespec tp; + + getnstimeofday(&tp); + + return (u32)((tp.tv_sec * 1000) + (tp.tv_nsec / 1000000)); +} + +enum cxd2880_ret cxd2880_stopwatch_start(struct cxd2880_stopwatch *stopwatch) +{ + if (!stopwatch) + return CXD2880_RESULT_ERROR_ARG; + + stopwatch->start_time = get_time_count(); + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_stopwatch_sleep(struct cxd2880_stopwatch *stopwatch, + u32 ms) +{ + if (!stopwatch) + return CXD2880_RESULT_ERROR_ARG; + CXD2880_ARG_UNUSED(*stopwatch); + CXD2880_SLEEP(ms); + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_stopwatch_elapsed(struct cxd2880_stopwatch *stopwatch, + u32 *elapsed) +{ + if (!stopwatch || !elapsed) + return CXD2880_RESULT_ERROR_ARG; + *elapsed = get_time_count() - stopwatch->start_time; + + return CXD2880_RESULT_OK; +} diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd.c new file mode 100644 index 0000000000000000000000000000000000000000..286384ae012443c432a232401ff35157c57ed0f5 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd.c @@ -0,0 +1,3925 @@ +/* + * cxd2880_tnrdmd.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * common control functions + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include "cxd2880_common.h" +#include "cxd2880_stdlib.h" +#include "cxd2880_tnrdmd.h" +#include "cxd2880_tnrdmd_mon.h" +#include "cxd2880_tnrdmd_dvbt.h" +#include "cxd2880_tnrdmd_dvbt2.h" + +static enum cxd2880_ret p_init1(struct cxd2880_tnrdmd *tnr_dmd) +{ + u8 data = 0; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if ((tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SINGLE) || + (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN)) { + switch (tnr_dmd->create_param.ts_output_if) { + case CXD2880_TNRDMD_TSOUT_IF_TS: + data = 0x00; + break; + case CXD2880_TNRDMD_TSOUT_IF_SPI: + data = 0x01; + break; + case CXD2880_TNRDMD_TSOUT_IF_SDIO: + data = 0x02; + break; + default: + return CXD2880_RESULT_ERROR_ARG; + } + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x10, + data) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x11, + 0x16) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + switch (tnr_dmd->chip_id) { + case CXD2880_TNRDMD_CHIP_ID_CXD2880_ES1_0X: + data = 0x1A; + break; + case CXD2880_TNRDMD_CHIP_ID_CXD2880_ES1_11: + data = 0x16; + break; + default: + return CXD2880_RESULT_ERROR_NOSUPPORT; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x10, + data) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->create_param.en_internal_ldo) + data = 0x01; + else + data = 0x00; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x11, + data) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x13, + data) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x12, + data) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + switch (tnr_dmd->chip_id) { + case CXD2880_TNRDMD_CHIP_ID_CXD2880_ES1_0X: + data = 0x01; + break; + case CXD2880_TNRDMD_CHIP_ID_CXD2880_ES1_11: + data = 0x00; + break; + default: + return CXD2880_RESULT_ERROR_NOSUPPORT; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x69, + data) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret p_init2(struct cxd2880_tnrdmd *tnr_dmd) +{ + u8 data[6] = { 0 }; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = tnr_dmd->create_param.xosc_cap; + data[1] = tnr_dmd->create_param.xosc_i; + switch (tnr_dmd->create_param.xtal_share_type) { + case CXD2880_TNRDMD_XTAL_SHARE_NONE: + data[2] = 0x01; + data[3] = 0x00; + break; + case CXD2880_TNRDMD_XTAL_SHARE_EXTREF: + data[2] = 0x00; + data[3] = 0x00; + break; + case CXD2880_TNRDMD_XTAL_SHARE_MASTER: + data[2] = 0x01; + data[3] = 0x01; + break; + case CXD2880_TNRDMD_XTAL_SHARE_SLAVE: + data[2] = 0x00; + data[3] = 0x01; + break; + default: + return CXD2880_RESULT_ERROR_ARG; + } + data[4] = 0x06; + data[5] = 0x00; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x13, data, + 6) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret p_init3(struct cxd2880_tnrdmd *tnr_dmd) +{ + u8 data[2] = { 0 }; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + switch (tnr_dmd->diver_mode) { + case CXD2880_TNRDMD_DIVERMODE_SINGLE: + data[0] = 0x00; + break; + case CXD2880_TNRDMD_DIVERMODE_MAIN: + data[0] = 0x03; + break; + case CXD2880_TNRDMD_DIVERMODE_SUB: + data[0] = 0x02; + break; + default: + return CXD2880_RESULT_ERROR_ARG; + } + + data[1] = 0x01; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x1F, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret rf_init1(struct cxd2880_tnrdmd *tnr_dmd) +{ + u8 data[80] = { 0 }; + u8 addr = 0; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x01; + data[1] = 0x00; + data[2] = 0x01; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x21, data, + 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x01; + data[1] = 0x01; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x17, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->create_param.stationary_use) { + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x1A, + 0x06) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x4F, + 0x18) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x61, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x71, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x9D, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x7D, + 0x02) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x8F, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x8B, + 0xC6) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x9A, + 0x03) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x1C, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x00; + if ((tnr_dmd->create_param.is_cxd2881gg) && + (tnr_dmd->create_param.xtal_share_type == + CXD2880_TNRDMD_XTAL_SHARE_SLAVE)) + data[1] = 0x00; + else + data[1] = 0x1F; + data[2] = 0x0A; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xB5, data, + 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xB9, + 0x07) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x33, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xC1, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xC4, + 0x1E) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->chip_id == CXD2880_TNRDMD_CHIP_ID_CXD2880_ES1_0X) { + data[0] = 0x34; + data[1] = 0x2C; + } else { + data[0] = 0x2F; + data[1] = 0x25; + } + data[2] = 0x15; + data[3] = 0x19; + data[4] = 0x1B; + data[5] = 0x15; + data[6] = 0x19; + data[7] = 0x1B; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xD9, data, + 8) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x11) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x6C; + data[1] = 0x10; + data[2] = 0xA6; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x44, data, + 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x16; + data[1] = 0xA8; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x50, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x00; + data[1] = 0x22; + data[2] = 0x00; + data[3] = 0x88; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x62, data, + 4) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x74, + 0x75) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x05; + data[1] = 0x05; + data[2] = 0x05; + data[3] = 0x05; + data[4] = 0x05; + data[5] = 0x05; + data[6] = 0x05; + data[7] = 0x05; + data[8] = 0x05; + data[9] = 0x04; + data[10] = 0x04; + data[11] = 0x04; + data[12] = 0x03; + data[13] = 0x03; + data[14] = 0x03; + data[15] = 0x04; + data[16] = 0x04; + data[17] = 0x05; + data[18] = 0x05; + data[19] = 0x05; + data[20] = 0x02; + data[21] = 0x02; + data[22] = 0x02; + data[23] = 0x02; + data[24] = 0x02; + data[25] = 0x02; + data[26] = 0x02; + data[27] = 0x02; + data[28] = 0x02; + data[29] = 0x03; + data[30] = 0x02; + data[31] = 0x01; + data[32] = 0x01; + data[33] = 0x01; + data[34] = 0x02; + data[35] = 0x02; + data[36] = 0x03; + data[37] = 0x04; + data[38] = 0x04; + data[39] = 0x04; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x7F, data, + 40) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x16) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x00; + data[1] = 0x71; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x10, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x23, + 0x89) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0xFF; + data[1] = 0x00; + data[2] = 0x00; + data[3] = 0x00; + data[4] = 0x00; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x27, data, + 5) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x00; + data[1] = 0x00; + data[2] = 0x00; + data[3] = 0x00; + data[4] = 0x00; + data[5] = 0x01; + data[6] = 0x00; + data[7] = 0x01; + data[8] = 0x00; + data[9] = 0x02; + data[10] = 0x00; + data[11] = 0x63; + data[12] = 0x00; + data[13] = 0x00; + data[14] = 0x00; + data[15] = 0x03; + data[16] = 0x00; + data[17] = 0x04; + data[18] = 0x00; + data[19] = 0x04; + data[20] = 0x00; + data[21] = 0x06; + data[22] = 0x00; + data[23] = 0x06; + data[24] = 0x00; + data[25] = 0x08; + data[26] = 0x00; + data[27] = 0x09; + data[28] = 0x00; + data[29] = 0x0B; + data[30] = 0x00; + data[31] = 0x0B; + data[32] = 0x00; + data[33] = 0x0D; + data[34] = 0x00; + data[35] = 0x0D; + data[36] = 0x00; + data[37] = 0x0F; + data[38] = 0x00; + data[39] = 0x0F; + data[40] = 0x00; + data[41] = 0x0F; + data[42] = 0x00; + data[43] = 0x10; + data[44] = 0x00; + data[45] = 0x79; + data[46] = 0x00; + data[47] = 0x00; + data[48] = 0x00; + data[49] = 0x02; + data[50] = 0x00; + data[51] = 0x00; + data[52] = 0x00; + data[53] = 0x03; + data[54] = 0x00; + data[55] = 0x01; + data[56] = 0x00; + data[57] = 0x03; + data[58] = 0x00; + data[59] = 0x03; + data[60] = 0x00; + data[61] = 0x03; + data[62] = 0x00; + data[63] = 0x04; + data[64] = 0x00; + data[65] = 0x04; + data[66] = 0x00; + data[67] = 0x06; + data[68] = 0x00; + data[69] = 0x05; + data[70] = 0x00; + data[71] = 0x07; + data[72] = 0x00; + data[73] = 0x07; + data[74] = 0x00; + data[75] = 0x08; + data[76] = 0x00; + data[77] = 0x0A; + data[78] = 0x03; + data[79] = 0xE0; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x3A, data, + 80) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + data[0] = 0x03; + data[1] = 0xE0; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xBC, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x51, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xC5, + 0x07) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x11) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x70, + 0xE9) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x76, + 0x0A) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x78, + 0x32) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x7A, + 0x46) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x7C, + 0x86) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x7E, + 0xA4) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xE1, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->create_param.stationary_use) { + data[0] = 0x06; + data[1] = 0x07; + data[2] = 0x1A; + } else { + data[0] = 0x00; + data[1] = 0x08; + data[2] = 0x19; + } + data[3] = 0x0E; + data[4] = 0x09; + data[5] = 0x0E; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x12) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + for (addr = 0x10; addr < 0x9F; addr += 6) { + if (tnr_dmd->lna_thrs_tbl_air) { + u8 idx = 0; + + idx = (addr - 0x10) / 6; + data[0] = + tnr_dmd->lna_thrs_tbl_air->thrs[idx].off_on; + data[1] = + tnr_dmd->lna_thrs_tbl_air->thrs[idx].on_off; + } + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, addr, + data, + 6) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + data[0] = 0x00; + data[1] = 0x08; + if (tnr_dmd->create_param.stationary_use) + data[2] = 0x1A; + else + data[2] = 0x19; + data[3] = 0x0E; + data[4] = 0x09; + data[5] = 0x0E; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x13) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + for (addr = 0x10; addr < 0xCF; addr += 6) { + if (tnr_dmd->lna_thrs_tbl_cable) { + u8 idx = 0; + + idx = (addr - 0x10) / 6; + data[0] = + tnr_dmd->lna_thrs_tbl_cable->thrs[idx].off_on; + data[1] = + tnr_dmd->lna_thrs_tbl_cable->thrs[idx].on_off; + } + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, addr, + data, + 6) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x11) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x08; + data[1] = 0x09; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xBD, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x08; + data[1] = 0x09; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xC4, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x20; + data[1] = 0x20; + data[2] = 0x30; + data[3] = 0x41; + data[4] = 0x50; + data[5] = 0x5F; + data[6] = 0x6F; + data[7] = 0x80; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xC9, data, + 8) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x14) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x15; + data[1] = 0x18; + data[2] = 0x00; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x10, data, + 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x15, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x16) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x00; + data[1] = 0x09; + data[2] = 0x00; + data[3] = 0x08; + data[4] = 0x00; + data[5] = 0x07; + data[6] = 0x00; + data[7] = 0x06; + data[8] = 0x00; + data[9] = 0x05; + data[10] = 0x00; + data[11] = 0x03; + data[12] = 0x00; + data[13] = 0x02; + data[14] = 0x00; + data[15] = 0x00; + data[16] = 0x00; + data[17] = 0x78; + data[18] = 0x00; + data[19] = 0x00; + data[20] = 0x00; + data[21] = 0x06; + data[22] = 0x00; + data[23] = 0x08; + data[24] = 0x00; + data[25] = 0x08; + data[26] = 0x00; + data[27] = 0x0C; + data[28] = 0x00; + data[29] = 0x0C; + data[30] = 0x00; + data[31] = 0x0D; + data[32] = 0x00; + data[33] = 0x0F; + data[34] = 0x00; + data[35] = 0x0E; + data[36] = 0x00; + data[37] = 0x0E; + data[38] = 0x00; + data[39] = 0x10; + data[40] = 0x00; + data[41] = 0x0F; + data[42] = 0x00; + data[43] = 0x0E; + data[44] = 0x00; + data[45] = 0x10; + data[46] = 0x00; + data[47] = 0x0F; + data[48] = 0x00; + data[49] = 0x0E; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x12, data, + 50) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + CXD2880_SLEEP(1); + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x0A) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x10, data, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if ((data[0] & 0x01) == 0x00) + return CXD2880_RESULT_ERROR_HW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x25, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + CXD2880_SLEEP(1); + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x0A) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x11, data, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if ((data[0] & 0x01) == 0x00) + return CXD2880_RESULT_ERROR_HW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x02, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x21, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0xE1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x8F, + 0x16) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x67, + 0x60) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x6A, + 0x0F) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x6C, + 0x17) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x00; + data[1] = 0xFE; + data[2] = 0xEE; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x6E, data, + 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0xA1; + data[1] = 0x8B; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x8D, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x08; + data[1] = 0x09; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x77, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->create_param.stationary_use) { + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x80, + 0xAA) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0xE2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x41, + 0xA0) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x4B, + 0x68) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x21, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x10, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x25, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + CXD2880_SLEEP(1); + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x1A) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x10, data, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if ((data[0] & 0x01) == 0x00) + return CXD2880_RESULT_ERROR_HW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x14, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x26, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret rf_init2(struct cxd2880_tnrdmd *tnr_dmd) +{ + u8 data[5] = { 0 }; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x40; + data[1] = 0x40; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xEA, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + CXD2880_SLEEP(1); + + data[0] = 0x00; + if (tnr_dmd->chip_id == CXD2880_TNRDMD_CHIP_ID_CXD2880_ES1_0X) + data[1] = 0x00; + else + data[1] = 0x01; + data[2] = 0x01; + data[3] = 0x03; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x30, data, + 4) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x14) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x1B, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x21, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0xE1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xD3, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x21, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret x_tune1(struct cxd2880_tnrdmd *tnr_dmd, + enum cxd2880_dtv_sys sys, u32 freq_khz, + enum cxd2880_dtv_bandwidth bandwidth, + u8 is_cable, int shift_frequency_khz) +{ + u8 data[11] = { 0 }; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x10, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + data[0] = 0x00; + data[1] = 0x00; + data[2] = 0x0E; + data[3] = 0x00; + data[4] = 0x03; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xE7, data, + 5) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + data[0] = 0x1F; + data[1] = 0x80; + data[2] = 0x18; + data[3] = 0x00; + data[4] = 0x07; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xE7, data, + 5) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + CXD2880_SLEEP(1); + + data[0] = 0x72; + data[1] = 0x81; + data[3] = 0x1D; + data[4] = 0x6F; + data[5] = 0x7E; + data[7] = 0x1C; + switch (sys) { + case CXD2880_DTV_SYS_DVBT: + case CXD2880_DTV_SYS_ISDBT: + case CXD2880_DTV_SYS_ISDBTSB: + case CXD2880_DTV_SYS_ISDBTMM_A: + case CXD2880_DTV_SYS_ISDBTMM_B: + data[2] = 0x94; + data[6] = 0x91; + break; + case CXD2880_DTV_SYS_DVBT2: + data[2] = 0x96; + data[6] = 0x93; + break; + default: + return CXD2880_RESULT_ERROR_ARG; + } + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x44, data, + 8) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x62, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x15) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x03; + data[1] = 0xE2; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x1E, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + data[0] = (u8)(is_cable ? 0x01 : 0x00); + data[1] = 0x00; + data[2] = 0x6B; + data[3] = 0x4D; + + switch (bandwidth) { + case CXD2880_DTV_BW_1_7_MHZ: + data[4] = 0x03; + break; + case CXD2880_DTV_BW_5_MHZ: + case CXD2880_DTV_BW_6_MHZ: + data[4] = 0x00; + break; + case CXD2880_DTV_BW_7_MHZ: + data[4] = 0x01; + break; + case CXD2880_DTV_BW_8_MHZ: + data[4] = 0x02; + break; + default: + return CXD2880_RESULT_ERROR_ARG; + } + + data[5] = 0x00; + + freq_khz += shift_frequency_khz; + + data[6] = (u8)((freq_khz >> 16) & 0x0F); + data[7] = (u8)((freq_khz >> 8) & 0xFF); + data[8] = (u8)(freq_khz & 0xFF); + data[9] = 0xFF; + data[10] = 0xFE; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x52, data, + 11) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret x_tune2(struct cxd2880_tnrdmd *tnr_dmd, + enum cxd2880_dtv_bandwidth bandwidth, + enum cxd2880_tnrdmd_clockmode clk_mode, + int shift_frequency_khz) +{ + u8 data[3] = { 0 }; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x11) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + data[0] = 0x01; + data[1] = 0x0E; + data[2] = 0x01; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x2D, data, + 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x1A) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x29, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x2C, data, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x60, + data[0]) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x62, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x11) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x2D, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x2F, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x10, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x21, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (shift_frequency_khz != 0) { + int shift_freq = 0; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0xE1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x60, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + shift_freq = shift_frequency_khz * 1000; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + case CXD2880_TNRDMD_CLOCKMODE_C: + default: + if (shift_freq >= 0) + shift_freq = (shift_freq + 183 / 2) / 183; + else + shift_freq = (shift_freq - 183 / 2) / 183; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + if (shift_freq >= 0) + shift_freq = (shift_freq + 178 / 2) / 178; + else + shift_freq = (shift_freq - 178 / 2) / 178; + break; + } + + shift_freq += + cxd2880_convert2s_complement((data[0] << 8) | data[1], 16); + + if (shift_freq > 32767) + shift_freq = 32767; + else if (shift_freq < -32768) + shift_freq = -32768; + + data[0] = (u8)(((u32)shift_freq >> 8) & 0xFF); + data[1] = (u8)((u32)shift_freq & 0xFF); + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x60, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x69, data, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + shift_freq = -shift_frequency_khz; + + if (bandwidth == CXD2880_DTV_BW_1_7_MHZ) { + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + case CXD2880_TNRDMD_CLOCKMODE_C: + default: + if (shift_freq >= 0) + shift_freq = + (shift_freq * 1000 + + 17578 / 2) / 17578; + else + shift_freq = + (shift_freq * 1000 - + 17578 / 2) / 17578; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + if (shift_freq >= 0) + shift_freq = + (shift_freq * 1000 + + 17090 / 2) / 17090; + else + shift_freq = + (shift_freq * 1000 - + 17090 / 2) / 17090; + break; + } + } else { + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + case CXD2880_TNRDMD_CLOCKMODE_C: + default: + if (shift_freq >= 0) + shift_freq = + (shift_freq * 1000 + + 35156 / 2) / 35156; + else + shift_freq = + (shift_freq * 1000 - + 35156 / 2) / 35156; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + if (shift_freq >= 0) + shift_freq = + (shift_freq * 1000 + + 34180 / 2) / 34180; + else + shift_freq = + (shift_freq * 1000 - + 34180 / 2) / 34180; + break; + } + } + + shift_freq += cxd2880_convert2s_complement(data[0], 8); + + if (shift_freq > 127) + shift_freq = 127; + else if (shift_freq < -128) + shift_freq = -128; + + data[0] = (u8)((u32)shift_freq & 0xFF); + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x69, + data[0]) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->create_param.stationary_use) { + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0xE1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x8A, + 0x87) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x21, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret x_tune3(struct cxd2880_tnrdmd *tnr_dmd, + enum cxd2880_dtv_sys sys, + u8 en_fef_intmtnt_ctrl) +{ + u8 data[6] = { 0 }; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x21, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0xE2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x41, + 0xA0) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x21, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xFE, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if ((sys == CXD2880_DTV_SYS_DVBT2) && en_fef_intmtnt_ctrl) { + data[0] = 0x01; + data[1] = 0x01; + data[2] = 0x01; + data[3] = 0x01; + data[4] = 0x01; + data[5] = 0x01; + } else { + data[0] = 0x00; + data[1] = 0x00; + data[2] = 0x00; + data[3] = 0x00; + data[4] = 0x00; + data[5] = 0x00; + } + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xEF, data, + 6) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x2D) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if ((sys == CXD2880_DTV_SYS_DVBT2) && en_fef_intmtnt_ctrl) + data[0] = 0x00; + else + data[0] = 0x01; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xB1, + data[0]) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret x_tune4(struct cxd2880_tnrdmd *tnr_dmd) +{ + u8 data[2] = { 0 }; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return CXD2880_RESULT_ERROR_ARG; + + { + if (tnr_dmd->diver_sub->io->write_reg(tnr_dmd->diver_sub->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != + CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x14; + data[1] = 0x00; + if (tnr_dmd->diver_sub->io->write_regs(tnr_dmd->diver_sub->io, + CXD2880_IO_TGT_SYS, 0x55, + data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + { + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x0B; + data[1] = 0xFF; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x53, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x57, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x0B; + data[1] = 0xFF; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x55, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + { + if (tnr_dmd->diver_sub->io->write_reg(tnr_dmd->diver_sub->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != + CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x14; + data[1] = 0x00; + if (tnr_dmd->diver_sub->io->write_regs(tnr_dmd->diver_sub->io, + CXD2880_IO_TGT_SYS, 0x53, + data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->diver_sub->io->write_reg(tnr_dmd->diver_sub->io, + CXD2880_IO_TGT_SYS, 0x57, + 0x02) != + CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xFE, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->diver_sub->io->write_reg(tnr_dmd->diver_sub->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->diver_sub->io->write_reg(tnr_dmd->diver_sub->io, + CXD2880_IO_TGT_DMD, 0xFE, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret x_sleep1(struct cxd2880_tnrdmd *tnr_dmd) +{ + u8 data[3] = { 0 }; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return CXD2880_RESULT_ERROR_ARG; + + { + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x57, + 0x03) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x00; + data[1] = 0x00; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x53, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + { + if (tnr_dmd->diver_sub->io->write_reg(tnr_dmd->diver_sub->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != + CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x1F; + data[1] = 0xFF; + data[2] = 0x03; + if (tnr_dmd->diver_sub->io->write_regs(tnr_dmd->diver_sub->io, + CXD2880_IO_TGT_SYS, 0x55, + data, + 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x00; + data[1] = 0x00; + if (tnr_dmd->diver_sub->io->write_regs(tnr_dmd->diver_sub->io, + CXD2880_IO_TGT_SYS, 0x53, + data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + { + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x1F; + data[1] = 0xFF; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x55, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret x_sleep2(struct cxd2880_tnrdmd *tnr_dmd) +{ + u8 data = 0; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x2D) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xB1, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + CXD2880_SLEEP(1); + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xB2, &data, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if ((data & 0x01) == 0x00) + return CXD2880_RESULT_ERROR_HW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xF4, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xF3, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xF2, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xF1, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xF0, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xEF, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret x_sleep3(struct cxd2880_tnrdmd *tnr_dmd) +{ + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xFD, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret x_sleep4(struct cxd2880_tnrdmd *tnr_dmd) +{ + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x21, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0xE2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x41, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x21, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret spll_reset(struct cxd2880_tnrdmd *tnr_dmd, + enum cxd2880_tnrdmd_clockmode clockmode) +{ + u8 data[4] = { 0 }; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x29, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x28, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x27, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x26, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x10, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x27, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x22, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + switch (clockmode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data[0] = 0x00; + break; + + case CXD2880_TNRDMD_CLOCKMODE_B: + data[0] = 0x01; + break; + + case CXD2880_TNRDMD_CLOCKMODE_C: + data[0] = 0x02; + break; + + default: + return CXD2880_RESULT_ERROR_ARG; + } + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x30, + data[0]) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x22, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + CXD2880_SLEEP(2); + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x0A) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x10, data, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if ((data[0] & 0x01) == 0x00) + return CXD2880_RESULT_ERROR_HW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x27, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + CXD2880_SLEEP(1); + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x10, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x00; + data[1] = 0x00; + data[2] = 0x00; + data[3] = 0x00; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x26, data, + 4) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret t_power_x(struct cxd2880_tnrdmd *tnr_dmd, u8 on) +{ + u8 data[3] = { 0 }; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x29, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x28, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x27, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x10, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x27, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x25, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (on) { + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x2B, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + CXD2880_SLEEP(1); + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x0A) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x12, data, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if ((data[0] & 0x01) == 0) + return CXD2880_RESULT_ERROR_HW_STATE; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x2A, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } else { + data[0] = 0x03; + data[1] = 0x00; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x2A, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + CXD2880_SLEEP(1); + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x0A) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x13, data, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if ((data[0] & 0x01) == 0) + return CXD2880_RESULT_ERROR_HW_STATE; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x25, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + CXD2880_SLEEP(1); + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x0A) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x11, data, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if ((data[0] & 0x01) == 0) + return CXD2880_RESULT_ERROR_HW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x27, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + CXD2880_SLEEP(1); + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x10, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + data[0] = 0x00; + data[1] = 0x00; + data[2] = 0x00; + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x27, data, + 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return CXD2880_RESULT_OK; +} + +struct cxd2880_tnrdmd_ts_clk_cfg { + u8 srl_clk_mode; + u8 srl_duty_mode; + u8 ts_clk_period; +}; + +static enum cxd2880_ret set_ts_clk_mode_and_freq(struct cxd2880_tnrdmd *tnr_dmd, + enum cxd2880_dtv_sys sys) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + u8 backwards_compatible = 0; + struct cxd2880_tnrdmd_ts_clk_cfg ts_clk_cfg; + + const struct cxd2880_tnrdmd_ts_clk_cfg srl_ts_clk_stgs[2][2] = { + { + {3, 1, 8,}, + {0, 2, 16,} + }, + { + {1, 1, 8,}, + {2, 2, 16,} + } + }; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + { + u8 ts_rate_ctrl_off = 0; + u8 ts_in_off = 0; + u8 ts_clk_manaul_on = 0; + + if ((sys == CXD2880_DTV_SYS_ISDBT) || + (sys == CXD2880_DTV_SYS_ISDBTSB) || + (sys == CXD2880_DTV_SYS_ISDBTMM_A) || + (sys == CXD2880_DTV_SYS_ISDBTMM_B)) { + backwards_compatible = 0; + ts_rate_ctrl_off = 1; + ts_in_off = 0; + } else if (tnr_dmd->is_ts_backwards_compatible_mode) { + backwards_compatible = 1; + ts_rate_ctrl_off = 1; + ts_in_off = 1; + } else { + backwards_compatible = 0; + ts_rate_ctrl_off = 0; + ts_in_off = 0; + } + + if (tnr_dmd->ts_byte_clk_manual_setting) { + ts_clk_manaul_on = 1; + ts_rate_ctrl_off = 0; + } + + ret = + cxd2880_io_set_reg_bits(tnr_dmd->io, CXD2880_IO_TGT_DMD, + 0xD3, ts_rate_ctrl_off, 0x01); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = + cxd2880_io_set_reg_bits(tnr_dmd->io, CXD2880_IO_TGT_DMD, + 0xDE, ts_in_off, 0x01); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = + cxd2880_io_set_reg_bits(tnr_dmd->io, CXD2880_IO_TGT_DMD, + 0xDA, ts_clk_manaul_on, 0x01); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + ts_clk_cfg = + srl_ts_clk_stgs[tnr_dmd->srl_ts_clk_mod_cnts] + [(u8)tnr_dmd->srl_ts_clk_frq]; + + if (tnr_dmd->ts_byte_clk_manual_setting) + ts_clk_cfg.ts_clk_period = tnr_dmd->ts_byte_clk_manual_setting; + + ret = + cxd2880_io_set_reg_bits(tnr_dmd->io, CXD2880_IO_TGT_DMD, 0xC4, + ts_clk_cfg.srl_clk_mode, 0x03); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = + cxd2880_io_set_reg_bits(tnr_dmd->io, CXD2880_IO_TGT_DMD, 0xD1, + ts_clk_cfg.srl_duty_mode, 0x03); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xD9, + ts_clk_cfg.ts_clk_period); + if (ret != CXD2880_RESULT_OK) + return ret; + + { + u8 data = (u8)(backwards_compatible ? 0x00 : 0x01); + + if (sys == CXD2880_DTV_SYS_DVBT) { + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + ret = + cxd2880_io_set_reg_bits(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x66, + data, 0x01); + if (ret != CXD2880_RESULT_OK) + return ret; + } + } + + return ret; +} + +static enum cxd2880_ret pid_ftr_setting(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_tnrdmd_pid_ftr_cfg + *pid_ftr_cfg) +{ + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (!pid_ftr_cfg) { + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x50, + 0x02) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } else { + u8 data[65]; + + data[0] = (u8)(pid_ftr_cfg->is_negative ? 0x01 : 0x00); + { + int i = 0; + + for (i = 0; i < 32; i++) { + if (pid_ftr_cfg->pid_cfg[i].is_en) { + data[1 + (i * 2)] = + (u8)((u8) + (pid_ftr_cfg->pid_cfg[i].pid + >> 8) | 0x20); + data[2 + (i * 2)] = + (u8)(pid_ftr_cfg->pid_cfg[i].pid + & 0xFF); + } else { + data[1 + (i * 2)] = 0x00; + data[2 + (i * 2)] = 0x00; + } + } + } + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x50, data, + 65) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret load_cfg_mem(struct cxd2880_tnrdmd *tnr_dmd) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + u8 i; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + for (i = 0; i < tnr_dmd->cfg_mem_last_entry; i++) { + ret = tnr_dmd->io->write_reg(tnr_dmd->io, + tnr_dmd->cfg_mem[i].tgt, + 0x00, tnr_dmd->cfg_mem[i].bank); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = cxd2880_io_set_reg_bits(tnr_dmd->io, + tnr_dmd->cfg_mem[i].tgt, + tnr_dmd->cfg_mem[i].address, + tnr_dmd->cfg_mem[i].value, + tnr_dmd->cfg_mem[i].bit_mask); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + return ret; +} + +static enum cxd2880_ret set_cfg_mem(struct cxd2880_tnrdmd *tnr_dmd, + enum cxd2880_io_tgt tgt, + u8 bank, u8 address, u8 value, u8 bit_mask) +{ + u8 i; + u8 value_stored = 0; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + for (i = 0; i < tnr_dmd->cfg_mem_last_entry; i++) { + if ((value_stored == 0) && + (tnr_dmd->cfg_mem[i].tgt == tgt) && + (tnr_dmd->cfg_mem[i].bank == bank) && + (tnr_dmd->cfg_mem[i].address == address)) { + tnr_dmd->cfg_mem[i].value &= ~bit_mask; + tnr_dmd->cfg_mem[i].value |= (value & bit_mask); + + tnr_dmd->cfg_mem[i].bit_mask |= bit_mask; + + value_stored = 1; + } + } + + if (value_stored == 0) { + if (tnr_dmd->cfg_mem_last_entry < + CXD2880_TNRDMD_MAX_CFG_MEM_COUNT) { + tnr_dmd->cfg_mem[tnr_dmd->cfg_mem_last_entry].tgt = tgt; + tnr_dmd->cfg_mem[tnr_dmd->cfg_mem_last_entry].bank = + bank; + tnr_dmd->cfg_mem[tnr_dmd->cfg_mem_last_entry].address = + address; + tnr_dmd->cfg_mem[tnr_dmd->cfg_mem_last_entry].value = + (value & bit_mask); + tnr_dmd->cfg_mem[tnr_dmd->cfg_mem_last_entry].bit_mask = + bit_mask; + tnr_dmd->cfg_mem_last_entry++; + } else { + return CXD2880_RESULT_ERROR_OVERFLOW; + } + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_create(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_io *io, + struct cxd2880_tnrdmd_create_param + *create_param) +{ + if ((!tnr_dmd) || (!io) || (!create_param)) + return CXD2880_RESULT_ERROR_ARG; + + cxd2880_memset(tnr_dmd, 0, sizeof(struct cxd2880_tnrdmd)); + + tnr_dmd->io = io; + tnr_dmd->create_param = *create_param; + + tnr_dmd->diver_mode = CXD2880_TNRDMD_DIVERMODE_SINGLE; + tnr_dmd->diver_sub = NULL; + + tnr_dmd->srl_ts_clk_mod_cnts = 1; + tnr_dmd->en_fef_intmtnt_base = 1; + tnr_dmd->en_fef_intmtnt_lite = 1; + tnr_dmd->rf_lvl_cmpstn = NULL; + tnr_dmd->lna_thrs_tbl_air = NULL; + tnr_dmd->lna_thrs_tbl_cable = NULL; + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_diver_create(struct cxd2880_tnrdmd + *tnr_dmd_main, + struct cxd2880_io *io_main, + struct cxd2880_tnrdmd *tnr_dmd_sub, + struct cxd2880_io *io_sub, + struct + cxd2880_tnrdmd_diver_create_param + *create_param) +{ + if ((!tnr_dmd_main) || (!io_main) || (!tnr_dmd_sub) || (!io_sub) || + (!create_param)) + return CXD2880_RESULT_ERROR_ARG; + + cxd2880_memset(tnr_dmd_main, 0, sizeof(struct cxd2880_tnrdmd)); + cxd2880_memset(tnr_dmd_sub, 0, sizeof(struct cxd2880_tnrdmd)); + + tnr_dmd_main->io = io_main; + tnr_dmd_main->diver_mode = CXD2880_TNRDMD_DIVERMODE_MAIN; + tnr_dmd_main->diver_sub = tnr_dmd_sub; + tnr_dmd_main->create_param.en_internal_ldo = + create_param->en_internal_ldo; + tnr_dmd_main->create_param.ts_output_if = create_param->ts_output_if; + tnr_dmd_main->create_param.xtal_share_type = + CXD2880_TNRDMD_XTAL_SHARE_MASTER; + tnr_dmd_main->create_param.xosc_cap = create_param->xosc_cap_main; + tnr_dmd_main->create_param.xosc_i = create_param->xosc_i_main; + tnr_dmd_main->create_param.is_cxd2881gg = create_param->is_cxd2881gg; + tnr_dmd_main->create_param.stationary_use = + create_param->stationary_use; + + tnr_dmd_sub->io = io_sub; + tnr_dmd_sub->diver_mode = CXD2880_TNRDMD_DIVERMODE_SUB; + tnr_dmd_sub->diver_sub = NULL; + tnr_dmd_sub->create_param.en_internal_ldo = + create_param->en_internal_ldo; + tnr_dmd_sub->create_param.ts_output_if = create_param->ts_output_if; + tnr_dmd_sub->create_param.xtal_share_type = + CXD2880_TNRDMD_XTAL_SHARE_SLAVE; + tnr_dmd_sub->create_param.xosc_cap = 0; + tnr_dmd_sub->create_param.xosc_i = create_param->xosc_i_sub; + tnr_dmd_sub->create_param.is_cxd2881gg = create_param->is_cxd2881gg; + tnr_dmd_sub->create_param.stationary_use = create_param->stationary_use; + + tnr_dmd_main->srl_ts_clk_mod_cnts = 1; + tnr_dmd_main->en_fef_intmtnt_base = 1; + tnr_dmd_main->en_fef_intmtnt_lite = 1; + tnr_dmd_main->rf_lvl_cmpstn = NULL; + tnr_dmd_main->lna_thrs_tbl_air = NULL; + tnr_dmd_main->lna_thrs_tbl_cable = NULL; + + tnr_dmd_sub->srl_ts_clk_mod_cnts = 1; + tnr_dmd_sub->en_fef_intmtnt_base = 1; + tnr_dmd_sub->en_fef_intmtnt_lite = 1; + tnr_dmd_sub->rf_lvl_cmpstn = NULL; + tnr_dmd_sub->lna_thrs_tbl_air = NULL; + tnr_dmd_sub->lna_thrs_tbl_cable = NULL; + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_init1(struct cxd2880_tnrdmd *tnr_dmd) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB)) + return CXD2880_RESULT_ERROR_ARG; + + tnr_dmd->chip_id = CXD2880_TNRDMD_CHIP_ID_UNKNOWN; + tnr_dmd->state = CXD2880_TNRDMD_STATE_UNKNOWN; + tnr_dmd->clk_mode = CXD2880_TNRDMD_CLOCKMODE_UNKNOWN; + tnr_dmd->frequency_khz = 0; + tnr_dmd->sys = CXD2880_DTV_SYS_UNKNOWN; + tnr_dmd->bandwidth = CXD2880_DTV_BW_UNKNOWN; + tnr_dmd->scan_mode = 0; + cxd2880_atomic_set(&tnr_dmd->cancel, 0); + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + tnr_dmd->diver_sub->chip_id = CXD2880_TNRDMD_CHIP_ID_UNKNOWN; + tnr_dmd->diver_sub->state = CXD2880_TNRDMD_STATE_UNKNOWN; + tnr_dmd->diver_sub->clk_mode = CXD2880_TNRDMD_CLOCKMODE_UNKNOWN; + tnr_dmd->diver_sub->frequency_khz = 0; + tnr_dmd->diver_sub->sys = CXD2880_DTV_SYS_UNKNOWN; + tnr_dmd->diver_sub->bandwidth = CXD2880_DTV_BW_UNKNOWN; + tnr_dmd->diver_sub->scan_mode = 0; + cxd2880_atomic_set(&tnr_dmd->diver_sub->cancel, 0); + } + + ret = cxd2880_tnrdmd_chip_id(tnr_dmd, &tnr_dmd->chip_id); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (!CXD2880_TNRDMD_CHIP_ID_VALID(tnr_dmd->chip_id)) + return CXD2880_RESULT_ERROR_NOSUPPORT; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = + cxd2880_tnrdmd_chip_id(tnr_dmd->diver_sub, + &tnr_dmd->diver_sub->chip_id); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (!CXD2880_TNRDMD_CHIP_ID_VALID(tnr_dmd->diver_sub->chip_id)) + return CXD2880_RESULT_ERROR_NOSUPPORT; + } + + ret = p_init1(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = p_init1(tnr_dmd->diver_sub); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + CXD2880_SLEEP(1); + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = p_init2(tnr_dmd->diver_sub); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + ret = p_init2(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + CXD2880_SLEEP(5); + + ret = p_init3(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = p_init3(tnr_dmd->diver_sub); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + ret = rf_init1(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = rf_init1(tnr_dmd->diver_sub); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_init2(struct cxd2880_tnrdmd *tnr_dmd) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + { + u8 cpu_task_completed = 0; + + ret = + cxd2880_tnrdmd_check_internal_cpu_status(tnr_dmd, + &cpu_task_completed); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (!cpu_task_completed) + return CXD2880_RESULT_ERROR_HW_STATE; + } + + ret = rf_init2(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = rf_init2(tnr_dmd->diver_sub); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + ret = load_cfg_mem(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = load_cfg_mem(tnr_dmd->diver_sub); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + tnr_dmd->state = CXD2880_TNRDMD_STATE_SLEEP; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) + tnr_dmd->diver_sub->state = CXD2880_TNRDMD_STATE_SLEEP; + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_check_internal_cpu_status(struct cxd2880_tnrdmd + *tnr_dmd, + u8 *task_completed) +{ + u16 cpu_status = 0; + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!task_completed)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + ret = cxd2880_tnrdmd_mon_internal_cpu_status(tnr_dmd, &cpu_status); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SINGLE) { + if (cpu_status == 0) + *task_completed = 1; + else + *task_completed = 0; + + return ret; + } + if (cpu_status != 0) { + *task_completed = 0; + return ret; + } + + ret = cxd2880_tnrdmd_mon_internal_cpu_status_sub(tnr_dmd, &cpu_status); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (cpu_status == 0) + *task_completed = 1; + else + *task_completed = 0; + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_common_tune_setting1(struct cxd2880_tnrdmd + *tnr_dmd, + enum cxd2880_dtv_sys sys, + u32 frequency_khz, + enum cxd2880_dtv_bandwidth + bandwidth, u8 one_seg_opt, + u8 one_seg_opt_shft_dir) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (frequency_khz < 4000) + return CXD2880_RESULT_ERROR_RANGE; + + ret = cxd2880_tnrdmd_sleep(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + { + u8 data = 0; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x2B, &data, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + switch (sys) { + case CXD2880_DTV_SYS_DVBT: + case CXD2880_DTV_SYS_ISDBT: + case CXD2880_DTV_SYS_ISDBTSB: + case CXD2880_DTV_SYS_ISDBTMM_A: + case CXD2880_DTV_SYS_ISDBTMM_B: + if (data == 0x00) { + ret = t_power_x(tnr_dmd, 1); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == + CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = t_power_x(tnr_dmd->diver_sub, 1); + if (ret != CXD2880_RESULT_OK) + return ret; + } + } + break; + + case CXD2880_DTV_SYS_DVBT2: + if (data == 0x01) { + ret = t_power_x(tnr_dmd, 0); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == + CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = t_power_x(tnr_dmd->diver_sub, 0); + if (ret != CXD2880_RESULT_OK) + return ret; + } + } + break; + + default: + return CXD2880_RESULT_ERROR_ARG; + } + } + + { + enum cxd2880_tnrdmd_clockmode new_clk_mode = + CXD2880_TNRDMD_CLOCKMODE_A; + + ret = spll_reset(tnr_dmd, new_clk_mode); + if (ret != CXD2880_RESULT_OK) + return ret; + + tnr_dmd->clk_mode = new_clk_mode; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = spll_reset(tnr_dmd->diver_sub, new_clk_mode); + if (ret != CXD2880_RESULT_OK) + return ret; + + tnr_dmd->diver_sub->clk_mode = new_clk_mode; + } + + ret = load_cfg_mem(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = load_cfg_mem(tnr_dmd->diver_sub); + if (ret != CXD2880_RESULT_OK) + return ret; + } + } + + { + int shift_frequency_khz = 0; + + if (one_seg_opt) { + if (tnr_dmd->diver_mode == + CXD2880_TNRDMD_DIVERMODE_MAIN) { + shift_frequency_khz = 350; + } else { + if (one_seg_opt_shft_dir) + shift_frequency_khz = 350; + else + shift_frequency_khz = -350; + + if (tnr_dmd->create_param.xtal_share_type == + CXD2880_TNRDMD_XTAL_SHARE_SLAVE) + shift_frequency_khz *= -1; + } + } else { + if (tnr_dmd->diver_mode == + CXD2880_TNRDMD_DIVERMODE_MAIN) { + shift_frequency_khz = 150; + } else { + switch (tnr_dmd->create_param.xtal_share_type) { + case CXD2880_TNRDMD_XTAL_SHARE_NONE: + case CXD2880_TNRDMD_XTAL_SHARE_EXTREF: + default: + shift_frequency_khz = 0; + break; + case CXD2880_TNRDMD_XTAL_SHARE_MASTER: + shift_frequency_khz = 150; + break; + case CXD2880_TNRDMD_XTAL_SHARE_SLAVE: + shift_frequency_khz = -150; + break; + } + } + } + + ret = + x_tune1(tnr_dmd, sys, frequency_khz, bandwidth, + tnr_dmd->is_cable_input, shift_frequency_khz); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = + x_tune1(tnr_dmd->diver_sub, sys, frequency_khz, + bandwidth, tnr_dmd->is_cable_input, + -shift_frequency_khz); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + CXD2880_SLEEP(10); + + { + u8 cpu_task_completed = 0; + + ret = + cxd2880_tnrdmd_check_internal_cpu_status(tnr_dmd, + &cpu_task_completed); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (!cpu_task_completed) + return CXD2880_RESULT_ERROR_HW_STATE; + } + + ret = + x_tune2(tnr_dmd, bandwidth, tnr_dmd->clk_mode, + shift_frequency_khz); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = + x_tune2(tnr_dmd->diver_sub, bandwidth, + tnr_dmd->diver_sub->clk_mode, + -shift_frequency_khz); + if (ret != CXD2880_RESULT_OK) + return ret; + } + } + + if (tnr_dmd->create_param.ts_output_if == CXD2880_TNRDMD_TSOUT_IF_TS) { + ret = set_ts_clk_mode_and_freq(tnr_dmd, sys); + if (ret != CXD2880_RESULT_OK) + return ret; + } else { + struct cxd2880_tnrdmd_pid_ftr_cfg *pid_ftr_cfg; + + if (tnr_dmd->pid_ftr_cfg_en) + pid_ftr_cfg = &tnr_dmd->pid_ftr_cfg; + else + pid_ftr_cfg = NULL; + + ret = pid_ftr_setting(tnr_dmd, pid_ftr_cfg); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_common_tune_setting2(struct cxd2880_tnrdmd + *tnr_dmd, + enum cxd2880_dtv_sys sys, + u8 en_fef_intmtnt_ctrl) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = x_tune3(tnr_dmd, sys, en_fef_intmtnt_ctrl); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = x_tune3(tnr_dmd->diver_sub, sys, en_fef_intmtnt_ctrl); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = x_tune4(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + ret = cxd2880_tnrdmd_set_ts_output(tnr_dmd, 1); + if (ret != CXD2880_RESULT_OK) + return ret; + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_sleep(struct cxd2880_tnrdmd *tnr_dmd) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state == CXD2880_TNRDMD_STATE_SLEEP) { + } else if (tnr_dmd->state == CXD2880_TNRDMD_STATE_ACTIVE) { + ret = cxd2880_tnrdmd_set_ts_output(tnr_dmd, 0); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = x_sleep1(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + ret = x_sleep2(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = x_sleep2(tnr_dmd->diver_sub); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + switch (tnr_dmd->sys) { + case CXD2880_DTV_SYS_DVBT: + ret = cxd2880_tnrdmd_dvbt_sleep_setting(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_DTV_SYS_DVBT2: + ret = cxd2880_tnrdmd_dvbt2_sleep_setting(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + ret = x_sleep3(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = x_sleep3(tnr_dmd->diver_sub); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + ret = x_sleep4(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = x_sleep4(tnr_dmd->diver_sub); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + tnr_dmd->state = CXD2880_TNRDMD_STATE_SLEEP; + tnr_dmd->frequency_khz = 0; + tnr_dmd->sys = CXD2880_DTV_SYS_UNKNOWN; + tnr_dmd->bandwidth = CXD2880_DTV_BW_UNKNOWN; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + tnr_dmd->diver_sub->state = CXD2880_TNRDMD_STATE_SLEEP; + tnr_dmd->diver_sub->frequency_khz = 0; + tnr_dmd->diver_sub->sys = CXD2880_DTV_SYS_UNKNOWN; + tnr_dmd->diver_sub->bandwidth = CXD2880_DTV_BW_UNKNOWN; + } + } else { + return CXD2880_RESULT_ERROR_SW_STATE; + } + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_set_cfg(struct cxd2880_tnrdmd *tnr_dmd, + enum cxd2880_tnrdmd_cfg_id id, + int value) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + u8 data[2] = { 0 }; + u8 need_sub_setting = 0; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + switch (id) { + case CXD2880_TNRDMD_CFG_OUTPUT_SEL_MSB: + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x00, 0xC4, + (u8)(value ? 0x00 : + 0x10), 0x10); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_TSVALID_ACTIVE_HI: + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x00, 0xC5, + (u8)(value ? 0x00 : + 0x02), 0x02); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_TSSYNC_ACTIVE_HI: + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x00, 0xC5, + (u8)(value ? 0x00 : + 0x04), 0x04); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_TSERR_ACTIVE_HI: + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x00, 0xCB, + (u8)(value ? 0x00 : + 0x01), 0x01); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_LATCH_ON_POSEDGE: + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x00, 0xC5, + (u8)(value ? 0x01 : + 0x00), 0x01); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_TSCLK_CONT: + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) + return CXD2880_RESULT_ERROR_SW_STATE; + + tnr_dmd->srl_ts_clk_mod_cnts = (u8)(value ? 0x01 : 0x00); + break; + + case CXD2880_TNRDMD_CFG_TSCLK_MASK: + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) + return CXD2880_RESULT_ERROR_SW_STATE; + + if ((value < 0) || (value > 0x1F)) + return CXD2880_RESULT_ERROR_RANGE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x00, 0xC6, (u8)value, + 0x1F); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_TSVALID_MASK: + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) + return CXD2880_RESULT_ERROR_SW_STATE; + + if ((value < 0) || (value > 0x1F)) + return CXD2880_RESULT_ERROR_RANGE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x00, 0xC8, (u8)value, + 0x1F); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_TSERR_MASK: + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) + return CXD2880_RESULT_ERROR_SW_STATE; + + if ((value < 0) || (value > 0x1F)) + return CXD2880_RESULT_ERROR_RANGE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x00, 0xC9, (u8)value, + 0x1F); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_TSERR_VALID_DIS: + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x00, 0x91, + (u8)(value ? 0x01 : + 0x00), 0x01); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_TSPIN_CURRENT: + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_SYS, + 0x00, 0x51, (u8)value, + 0x3F); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_TSPIN_PULLUP_MANUAL: + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_SYS, + 0x00, 0x50, + (u8)(value ? 0x80 : + 0x00), 0x80); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_TSPIN_PULLUP: + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_SYS, + 0x00, 0x50, (u8)value, + 0x3F); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_TSCLK_FREQ: + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) + return CXD2880_RESULT_ERROR_SW_STATE; + + if ((value < 0) || (value > 1)) + return CXD2880_RESULT_ERROR_RANGE; + + tnr_dmd->srl_ts_clk_frq = + (enum cxd2880_tnrdmd_serial_ts_clk)value; + break; + + case CXD2880_TNRDMD_CFG_TSBYTECLK_MANUAL: + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) + return CXD2880_RESULT_ERROR_SW_STATE; + + if ((value < 0) || (value > 0xFF)) + return CXD2880_RESULT_ERROR_RANGE; + + tnr_dmd->ts_byte_clk_manual_setting = (u8)value; + + break; + + case CXD2880_TNRDMD_CFG_TS_PACKET_GAP: + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) + return CXD2880_RESULT_ERROR_SW_STATE; + + if ((value < 0) || (value > 7)) + return CXD2880_RESULT_ERROR_RANGE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x00, 0xD6, (u8)value, + 0x07); + if (ret != CXD2880_RESULT_OK) + return ret; + + break; + + case CXD2880_TNRDMD_CFG_TS_BACKWARDS_COMPATIBLE: + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) + return CXD2880_RESULT_ERROR_SW_STATE; + + tnr_dmd->is_ts_backwards_compatible_mode = (u8)(value ? 1 : 0); + + break; + + case CXD2880_TNRDMD_CFG_PWM_VALUE: + if ((value < 0) || (value > 0x1000)) + return CXD2880_RESULT_ERROR_RANGE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x00, 0x22, + (u8)(value ? 0x01 : + 0x00), 0x01); + if (ret != CXD2880_RESULT_OK) + return ret; + + { + u8 data[2]; + + data[0] = (u8)(((u16)value >> 8) & 0x1F); + data[1] = (u8)((u16)value & 0xFF); + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x00, 0x23, + data[0], 0x1F); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x00, 0x24, + data[1], 0xFF); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + break; + + case CXD2880_TNRDMD_CFG_INTERRUPT: + data[0] = (u8)((value >> 8) & 0xFF); + data[1] = (u8)(value & 0xFF); + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_SYS, + 0x00, 0x48, data[0], + 0xFF); + if (ret != CXD2880_RESULT_OK) + return ret; + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_SYS, + 0x00, 0x49, data[1], + 0xFF); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_INTERRUPT_LOCK_SEL: + data[0] = (u8)(value & 0x07); + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_SYS, + 0x00, 0x4A, data[0], + 0x07); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_INTERRUPT_INV_LOCK_SEL: + data[0] = (u8)((value & 0x07) << 3); + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_SYS, + 0x00, 0x4A, data[0], + 0x38); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_FIXED_CLOCKMODE: + if ((value < (int)CXD2880_TNRDMD_CLOCKMODE_UNKNOWN) || + (value > (int)CXD2880_TNRDMD_CLOCKMODE_C)) + return CXD2880_RESULT_ERROR_RANGE; + tnr_dmd->fixed_clk_mode = (enum cxd2880_tnrdmd_clockmode)value; + break; + + case CXD2880_TNRDMD_CFG_CABLE_INPUT: + tnr_dmd->is_cable_input = (u8)(value ? 1 : 0); + break; + + case CXD2880_TNRDMD_CFG_DVBT2_FEF_INTERMITTENT_BASE: + tnr_dmd->en_fef_intmtnt_base = (u8)(value ? 1 : 0); + break; + + case CXD2880_TNRDMD_CFG_DVBT2_FEF_INTERMITTENT_LITE: + tnr_dmd->en_fef_intmtnt_lite = (u8)(value ? 1 : 0); + break; + + case CXD2880_TNRDMD_CFG_TS_BUF_ALMOST_EMPTY_THRS: + data[0] = (u8)((value >> 8) & 0x07); + data[1] = (u8)(value & 0xFF); + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x00, 0x99, data[0], + 0x07); + if (ret != CXD2880_RESULT_OK) + return ret; + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x00, 0x9A, data[1], + 0xFF); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_TS_BUF_ALMOST_FULL_THRS: + data[0] = (u8)((value >> 8) & 0x07); + data[1] = (u8)(value & 0xFF); + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x00, 0x9B, data[0], + 0x07); + if (ret != CXD2880_RESULT_OK) + return ret; + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x00, 0x9C, data[1], + 0xFF); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_TS_BUF_RRDY_THRS: + data[0] = (u8)((value >> 8) & 0x07); + data[1] = (u8)(value & 0xFF); + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x00, 0x9D, data[0], + 0x07); + if (ret != CXD2880_RESULT_OK) + return ret; + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x00, 0x9E, data[1], + 0xFF); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_BLINDTUNE_DVBT2_FIRST: + tnr_dmd->blind_tune_dvbt2_first = (u8)(value ? 1 : 0); + break; + + case CXD2880_TNRDMD_CFG_DVBT_BERN_PERIOD: + if ((value < 0) || (value > 31)) + return CXD2880_RESULT_ERROR_RANGE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x10, 0x60, + (u8)(value & 0x1F), + 0x1F); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_DVBT_VBER_PERIOD: + if ((value < 0) || (value > 7)) + return CXD2880_RESULT_ERROR_RANGE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x10, 0x6F, + (u8)(value & 0x07), + 0x07); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_DVBT2_BBER_MES: + if ((value < 0) || (value > 15)) + return CXD2880_RESULT_ERROR_RANGE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x20, 0x72, + (u8)(value & 0x0F), + 0x0F); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_DVBT2_LBER_MES: + if ((value < 0) || (value > 15)) + return CXD2880_RESULT_ERROR_RANGE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x20, 0x6F, + (u8)(value & 0x0F), + 0x0F); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_DVBT_PER_MES: + if ((value < 0) || (value > 15)) + return CXD2880_RESULT_ERROR_RANGE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x10, 0x5C, + (u8)(value & 0x0F), + 0x0F); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_DVBT2_PER_MES: + if ((value < 0) || (value > 15)) + return CXD2880_RESULT_ERROR_RANGE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x24, 0xDC, + (u8)(value & 0x0F), + 0x0F); + if (ret != CXD2880_RESULT_OK) + return ret; + break; + + case CXD2880_TNRDMD_CFG_ISDBT_BERPER_PERIOD: + { + u8 data[2]; + + data[0] = (u8)((value & 0x00007F00) >> 8); + data[1] = (u8)(value & 0x000000FF); + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x60, 0x5B, + data[0], 0x7F); + if (ret != CXD2880_RESULT_OK) + return ret; + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, + CXD2880_IO_TGT_DMD, + 0x60, 0x5C, + data[1], 0xFF); + if (ret != CXD2880_RESULT_OK) + return ret; + } + break; + + default: + return CXD2880_RESULT_ERROR_ARG; + } + + if (need_sub_setting && + (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN)) { + ret = cxd2880_tnrdmd_set_cfg(tnr_dmd->diver_sub, id, value); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_gpio_set_cfg(struct cxd2880_tnrdmd *tnr_dmd, + u8 id, + u8 en, + enum cxd2880_tnrdmd_gpio_mode mode, + u8 open_drain, u8 invert) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (id > 2) + return CXD2880_RESULT_ERROR_ARG; + + if (mode > CXD2880_TNRDMD_GPIO_MODE_EEW) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, CXD2880_IO_TGT_SYS, + 0x00, 0x40 + id, (u8)mode, + 0x0F); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, CXD2880_IO_TGT_SYS, + 0x00, 0x43, + (u8)(open_drain ? (1 << id) : + 0), (u8)(1 << id)); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, CXD2880_IO_TGT_SYS, + 0x00, 0x44, + (u8)(invert ? (1 << id) : 0), + (u8)(1 << id)); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, CXD2880_IO_TGT_SYS, + 0x00, 0x45, + (u8)(en ? 0 : (1 << id)), + (u8)(1 << id)); + if (ret != CXD2880_RESULT_OK) + return ret; + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_gpio_set_cfg_sub(struct cxd2880_tnrdmd *tnr_dmd, + u8 id, + u8 en, + enum cxd2880_tnrdmd_gpio_mode + mode, u8 open_drain, u8 invert) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return CXD2880_RESULT_ERROR_ARG; + + ret = + cxd2880_tnrdmd_gpio_set_cfg(tnr_dmd->diver_sub, id, en, mode, + open_drain, invert); + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_gpio_read(struct cxd2880_tnrdmd *tnr_dmd, + u8 id, u8 *value) +{ + u8 data = 0; + + if ((!tnr_dmd) || (!value)) + return CXD2880_RESULT_ERROR_ARG; + + if (id > 2) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x0A) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x20, &data, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + *value = (u8)((data >> id) & 0x01); + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_gpio_read_sub(struct cxd2880_tnrdmd *tnr_dmd, + u8 id, u8 *value) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return CXD2880_RESULT_ERROR_ARG; + + ret = cxd2880_tnrdmd_gpio_read(tnr_dmd->diver_sub, id, value); + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_gpio_write(struct cxd2880_tnrdmd *tnr_dmd, + u8 id, u8 value) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (id > 2) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = + cxd2880_tnrdmd_set_and_save_reg_bits(tnr_dmd, CXD2880_IO_TGT_SYS, + 0x00, 0x46, + (u8)(value ? (1 << id) : 0), + (u8)(1 << id)); + if (ret != CXD2880_RESULT_OK) + return ret; + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_gpio_write_sub(struct cxd2880_tnrdmd *tnr_dmd, + u8 id, u8 value) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return CXD2880_RESULT_ERROR_ARG; + + ret = cxd2880_tnrdmd_gpio_write(tnr_dmd->diver_sub, id, value); + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_interrupt_read(struct cxd2880_tnrdmd *tnr_dmd, + u16 *value) +{ + u8 data[2] = { 0 }; + + if ((!tnr_dmd) || (!value)) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x0A) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x15, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + *value = (u16)(((u16)data[0] << 8) | (data[1])); + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_interrupt_clear(struct cxd2880_tnrdmd *tnr_dmd, + u16 value) +{ + u8 data[2] = { 0 }; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + data[0] = (u8)((value >> 8) & 0xFF); + data[1] = (u8)(value & 0xFF); + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x3C, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_ts_buf_clear(struct cxd2880_tnrdmd *tnr_dmd, + u8 clear_overflow_flag, + u8 clear_underflow_flag, + u8 clear_buf) +{ + u8 data[2] = { 0 }; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + data[0] = (u8)(clear_overflow_flag ? 0x02 : 0x00); + data[0] |= (u8)(clear_underflow_flag ? 0x01 : 0x00); + data[1] = (u8)(clear_buf ? 0x01 : 0x00); + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x9F, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_chip_id(struct cxd2880_tnrdmd *tnr_dmd, + enum cxd2880_tnrdmd_chip_id *chip_id) +{ + u8 data = 0; + + if ((!tnr_dmd) || (!chip_id)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0xFD, &data, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + *chip_id = (enum cxd2880_tnrdmd_chip_id)data; + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_set_and_save_reg_bits(struct cxd2880_tnrdmd + *tnr_dmd, + enum cxd2880_io_tgt tgt, + u8 bank, u8 address, + u8 value, u8 bit_mask) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + tgt, 0x00, bank) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (cxd2880_io_set_reg_bits(tnr_dmd->io, tgt, address, value, bit_mask) + != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + ret = set_cfg_mem(tnr_dmd, tgt, bank, address, value, bit_mask); + if (ret != CXD2880_RESULT_OK) + return ret; + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_set_scan_mode(struct cxd2880_tnrdmd *tnr_dmd, + enum cxd2880_dtv_sys sys, + u8 scan_mode_end) +{ + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + CXD2880_ARG_UNUSED(sys); + + tnr_dmd->scan_mode = scan_mode_end; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + ret = + cxd2880_tnrdmd_set_scan_mode(tnr_dmd->diver_sub, sys, + scan_mode_end); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_set_pid_ftr(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_tnrdmd_pid_ftr_cfg + *pid_ftr_cfg) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->create_param.ts_output_if == CXD2880_TNRDMD_TSOUT_IF_TS) + return CXD2880_RESULT_ERROR_NOSUPPORT; + + if (pid_ftr_cfg) { + tnr_dmd->pid_ftr_cfg = *pid_ftr_cfg; + tnr_dmd->pid_ftr_cfg_en = 1; + } else { + tnr_dmd->pid_ftr_cfg_en = 0; + } + + if (tnr_dmd->state == CXD2880_TNRDMD_STATE_ACTIVE) { + ret = pid_ftr_setting(tnr_dmd, pid_ftr_cfg); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_set_rf_lvl_cmpstn(struct cxd2880_tnrdmd + *tnr_dmd, + enum + cxd2880_ret(*rf_lvl_cmpstn) + (struct cxd2880_tnrdmd *, + int *)) +{ + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + tnr_dmd->rf_lvl_cmpstn = rf_lvl_cmpstn; + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_set_rf_lvl_cmpstn_sub(struct cxd2880_tnrdmd + *tnr_dmd, + enum + cxd2880_ret + (*rf_lvl_cmpstn)(struct + cxd2880_tnrdmd + *, + int *)) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return CXD2880_RESULT_ERROR_ARG; + + ret = + cxd2880_tnrdmd_set_rf_lvl_cmpstn(tnr_dmd->diver_sub, rf_lvl_cmpstn); + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_set_lna_thrs(struct cxd2880_tnrdmd *tnr_dmd, + struct + cxd2880_tnrdmd_lna_thrs_tbl_air + *tbl_air, + struct + cxd2880_tnrdmd_lna_thrs_tbl_cable + *tbl_cable) +{ + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + tnr_dmd->lna_thrs_tbl_air = tbl_air; + tnr_dmd->lna_thrs_tbl_cable = tbl_cable; + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_set_lna_thrs_sub(struct cxd2880_tnrdmd *tnr_dmd, + struct + cxd2880_tnrdmd_lna_thrs_tbl_air + *tbl_air, + struct + cxd2880_tnrdmd_lna_thrs_tbl_cable + *tbl_cable) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return CXD2880_RESULT_ERROR_ARG; + + ret = + cxd2880_tnrdmd_set_lna_thrs(tnr_dmd->diver_sub, tbl_air, tbl_cable); + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_set_ts_pin_high_low(struct cxd2880_tnrdmd + *tnr_dmd, u8 en, u8 value) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->create_param.ts_output_if != CXD2880_TNRDMD_TSOUT_IF_TS) + return CXD2880_RESULT_ERROR_NOSUPPORT; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (en) { + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x50, + ((value & 0x1F) | 0x80)) != + CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x52, + (value & 0x1F)) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } else { + ret = tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x50, 0x3F); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x52, + 0x1F) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + ret = load_cfg_mem(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_set_ts_output(struct cxd2880_tnrdmd *tnr_dmd, + u8 en) +{ + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + switch (tnr_dmd->create_param.ts_output_if) { + case CXD2880_TNRDMD_TSOUT_IF_TS: + if (en) { + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x52, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xC3, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } else { + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xC3, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x52, + 0x1F) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + break; + + case CXD2880_TNRDMD_TSOUT_IF_SPI: + break; + + case CXD2880_TNRDMD_TSOUT_IF_SDIO: + break; + + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret slvt_freeze_reg(struct cxd2880_tnrdmd *tnr_dmd) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + switch (tnr_dmd->create_param.ts_output_if) { + case CXD2880_TNRDMD_TSOUT_IF_SPI: + case CXD2880_TNRDMD_TSOUT_IF_SDIO: + { + u8 data = 0; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + &data, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + break; + case CXD2880_TNRDMD_TSOUT_IF_TS: + default: + break; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x01, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return ret; +} diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd.h new file mode 100644 index 0000000000000000000000000000000000000000..26e29b3b9f6bdba32a181595e8298cda3325112c --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd.h @@ -0,0 +1,395 @@ +/* + * cxd2880_tnrdmd.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * common control interface + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef CXD2880_TNRDMD_H +#define CXD2880_TNRDMD_H + +#include "cxd2880_common.h" +#include "cxd2880_io.h" +#include "cxd2880_dtv.h" +#include "cxd2880_dvbt.h" +#include "cxd2880_dvbt2.h" + +#define CXD2880_TNRDMD_MAX_CFG_MEM_COUNT 100 + +#define slvt_unfreeze_reg(tnr_dmd) ((void)((tnr_dmd)->io->write_reg\ +((tnr_dmd)->io, CXD2880_IO_TGT_DMD, 0x01, 0x00))) + +#define CXD2880_TNRDMD_INTERRUPT_TYPE_BUF_UNDERFLOW 0x0001 +#define CXD2880_TNRDMD_INTERRUPT_TYPE_BUF_OVERFLOW 0x0002 +#define CXD2880_TNRDMD_INTERRUPT_TYPE_BUF_ALMOST_EMPTY 0x0004 +#define CXD2880_TNRDMD_INTERRUPT_TYPE_BUF_ALMOST_FULL 0x0008 +#define CXD2880_TNRDMD_INTERRUPT_TYPE_BUF_RRDY 0x0010 +#define CXD2880_TNRDMD_INTERRUPT_TYPE_ILLEGAL_COMMAND 0x0020 +#define CXD2880_TNRDMD_INTERRUPT_TYPE_ILLEGAL_ACCESS 0x0040 +#define CXD2880_TNRDMD_INTERRUPT_TYPE_CPU_ERROR 0x0100 +#define CXD2880_TNRDMD_INTERRUPT_TYPE_LOCK 0x0200 +#define CXD2880_TNRDMD_INTERRUPT_TYPE_INV_LOCK 0x0400 +#define CXD2880_TNRDMD_INTERRUPT_TYPE_NOOFDM 0x0800 +#define CXD2880_TNRDMD_INTERRUPT_TYPE_EWS 0x1000 +#define CXD2880_TNRDMD_INTERRUPT_TYPE_EEW 0x2000 +#define CXD2880_TNRDMD_INTERRUPT_TYPE_FEC_FAIL 0x4000 + +#define CXD2880_TNRDMD_INTERRUPT_LOCK_SEL_L1POST_OK 0x01 +#define CXD2880_TNRDMD_INTERRUPT_LOCK_SEL_DMD_LOCK 0x02 +#define CXD2880_TNRDMD_INTERRUPT_LOCK_SEL_TS_LOCK 0x04 + +enum cxd2880_tnrdmd_chip_id { + CXD2880_TNRDMD_CHIP_ID_UNKNOWN = 0x00, + CXD2880_TNRDMD_CHIP_ID_CXD2880_ES1_0X = 0x62, + CXD2880_TNRDMD_CHIP_ID_CXD2880_ES1_11 = 0x6A +}; + +#define CXD2880_TNRDMD_CHIP_ID_VALID(chip_id) (((chip_id) == \ +CXD2880_TNRDMD_CHIP_ID_CXD2880_ES1_0X) || \ +((chip_id) == CXD2880_TNRDMD_CHIP_ID_CXD2880_ES1_11)) + +enum cxd2880_tnrdmd_state { + CXD2880_TNRDMD_STATE_UNKNOWN, + CXD2880_TNRDMD_STATE_SLEEP, + CXD2880_TNRDMD_STATE_ACTIVE, + CXD2880_TNRDMD_STATE_INVALID +}; + +enum cxd2880_tnrdmd_divermode { + CXD2880_TNRDMD_DIVERMODE_SINGLE, + CXD2880_TNRDMD_DIVERMODE_MAIN, + CXD2880_TNRDMD_DIVERMODE_SUB +}; + +enum cxd2880_tnrdmd_clockmode { + CXD2880_TNRDMD_CLOCKMODE_UNKNOWN, + CXD2880_TNRDMD_CLOCKMODE_A, + CXD2880_TNRDMD_CLOCKMODE_B, + CXD2880_TNRDMD_CLOCKMODE_C +}; + +enum cxd2880_tnrdmd_tsout_if { + CXD2880_TNRDMD_TSOUT_IF_TS, + CXD2880_TNRDMD_TSOUT_IF_SPI, + CXD2880_TNRDMD_TSOUT_IF_SDIO +}; + +enum cxd2880_tnrdmd_xtal_share { + CXD2880_TNRDMD_XTAL_SHARE_NONE, + CXD2880_TNRDMD_XTAL_SHARE_EXTREF, + CXD2880_TNRDMD_XTAL_SHARE_MASTER, + CXD2880_TNRDMD_XTAL_SHARE_SLAVE +}; + +enum cxd2880_tnrdmd_spectrum_sense { + CXD2880_TNRDMD_SPECTRUM_NORMAL, + CXD2880_TNRDMD_SPECTRUM_INV +}; + +enum cxd2880_tnrdmd_cfg_id { + CXD2880_TNRDMD_CFG_OUTPUT_SEL_MSB, + CXD2880_TNRDMD_CFG_TSVALID_ACTIVE_HI, + CXD2880_TNRDMD_CFG_TSSYNC_ACTIVE_HI, + CXD2880_TNRDMD_CFG_TSERR_ACTIVE_HI, + CXD2880_TNRDMD_CFG_LATCH_ON_POSEDGE, + CXD2880_TNRDMD_CFG_TSCLK_CONT, + CXD2880_TNRDMD_CFG_TSCLK_MASK, + CXD2880_TNRDMD_CFG_TSVALID_MASK, + CXD2880_TNRDMD_CFG_TSERR_MASK, + CXD2880_TNRDMD_CFG_TSERR_VALID_DIS, + CXD2880_TNRDMD_CFG_TSPIN_CURRENT, + CXD2880_TNRDMD_CFG_TSPIN_PULLUP_MANUAL, + CXD2880_TNRDMD_CFG_TSPIN_PULLUP, + CXD2880_TNRDMD_CFG_TSCLK_FREQ, + CXD2880_TNRDMD_CFG_TSBYTECLK_MANUAL, + CXD2880_TNRDMD_CFG_TS_PACKET_GAP, + CXD2880_TNRDMD_CFG_TS_BACKWARDS_COMPATIBLE, + CXD2880_TNRDMD_CFG_PWM_VALUE, + CXD2880_TNRDMD_CFG_INTERRUPT, + CXD2880_TNRDMD_CFG_INTERRUPT_LOCK_SEL, + CXD2880_TNRDMD_CFG_INTERRUPT_INV_LOCK_SEL, + CXD2880_TNRDMD_CFG_TS_BUF_ALMOST_EMPTY_THRS, + CXD2880_TNRDMD_CFG_TS_BUF_ALMOST_FULL_THRS, + CXD2880_TNRDMD_CFG_TS_BUF_RRDY_THRS, + CXD2880_TNRDMD_CFG_FIXED_CLOCKMODE, + CXD2880_TNRDMD_CFG_CABLE_INPUT, + CXD2880_TNRDMD_CFG_DVBT2_FEF_INTERMITTENT_BASE, + CXD2880_TNRDMD_CFG_DVBT2_FEF_INTERMITTENT_LITE, + CXD2880_TNRDMD_CFG_BLINDTUNE_DVBT2_FIRST, + CXD2880_TNRDMD_CFG_DVBT_BERN_PERIOD, + CXD2880_TNRDMD_CFG_DVBT_VBER_PERIOD, + CXD2880_TNRDMD_CFG_DVBT_PER_MES, + CXD2880_TNRDMD_CFG_DVBT2_BBER_MES, + CXD2880_TNRDMD_CFG_DVBT2_LBER_MES, + CXD2880_TNRDMD_CFG_DVBT2_PER_MES, + CXD2880_TNRDMD_CFG_ISDBT_BERPER_PERIOD +}; + +enum cxd2880_tnrdmd_lock_result { + CXD2880_TNRDMD_LOCK_RESULT_NOTDETECT, + CXD2880_TNRDMD_LOCK_RESULT_LOCKED, + CXD2880_TNRDMD_LOCK_RESULT_UNLOCKED +}; + +enum cxd2880_tnrdmd_gpio_mode { + CXD2880_TNRDMD_GPIO_MODE_OUTPUT = 0x00, + CXD2880_TNRDMD_GPIO_MODE_INPUT = 0x01, + CXD2880_TNRDMD_GPIO_MODE_INT = 0x02, + CXD2880_TNRDMD_GPIO_MODE_FEC_FAIL = 0x03, + CXD2880_TNRDMD_GPIO_MODE_PWM = 0x04, + CXD2880_TNRDMD_GPIO_MODE_EWS = 0x05, + CXD2880_TNRDMD_GPIO_MODE_EEW = 0x06 +}; + +enum cxd2880_tnrdmd_serial_ts_clk { + CXD2880_TNRDMD_SERIAL_TS_CLK_FULL, + CXD2880_TNRDMD_SERIAL_TS_CLK_HALF +}; + +struct cxd2880_tnrdmd_cfg_mem { + enum cxd2880_io_tgt tgt; + u8 bank; + u8 address; + u8 value; + u8 bit_mask; +}; + +struct cxd2880_tnrdmd_pid_cfg { + u8 is_en; + u16 pid; +}; + +struct cxd2880_tnrdmd_pid_ftr_cfg { + u8 is_negative; + struct cxd2880_tnrdmd_pid_cfg pid_cfg[32]; +}; + +struct cxd2880_tnrdmd_ts_buf_info { + u8 read_ready; + u8 almost_full; + u8 almost_empty; + u8 overflow; + u8 underflow; + u16 packet_num; +}; + +struct cxd2880_tnrdmd_lna_thrs { + u8 off_on; + u8 on_off; +}; + +struct cxd2880_tnrdmd_lna_thrs_tbl_air { + struct cxd2880_tnrdmd_lna_thrs thrs[24]; +}; + +struct cxd2880_tnrdmd_lna_thrs_tbl_cable { + struct cxd2880_tnrdmd_lna_thrs thrs[32]; +}; + +struct cxd2880_tnrdmd_create_param { + enum cxd2880_tnrdmd_tsout_if ts_output_if; + u8 en_internal_ldo; + enum cxd2880_tnrdmd_xtal_share xtal_share_type; + u8 xosc_cap; + u8 xosc_i; + u8 is_cxd2881gg; + u8 stationary_use; +}; + +struct cxd2880_tnrdmd_diver_create_param { + enum cxd2880_tnrdmd_tsout_if ts_output_if; + u8 en_internal_ldo; + u8 xosc_cap_main; + u8 xosc_i_main; + u8 xosc_i_sub; + u8 is_cxd2881gg; + u8 stationary_use; +}; + +struct cxd2880_tnrdmd { + struct cxd2880_tnrdmd *diver_sub; + struct cxd2880_io *io; + struct cxd2880_tnrdmd_create_param create_param; + enum cxd2880_tnrdmd_divermode diver_mode; + enum cxd2880_tnrdmd_clockmode fixed_clk_mode; + u8 is_cable_input; + u8 en_fef_intmtnt_base; + u8 en_fef_intmtnt_lite; + u8 blind_tune_dvbt2_first; + enum cxd2880_ret (*rf_lvl_cmpstn)(struct cxd2880_tnrdmd *tnr_dmd, + int *rf_lvl_db); + struct cxd2880_tnrdmd_lna_thrs_tbl_air *lna_thrs_tbl_air; + struct cxd2880_tnrdmd_lna_thrs_tbl_cable *lna_thrs_tbl_cable; + u8 srl_ts_clk_mod_cnts; + enum cxd2880_tnrdmd_serial_ts_clk srl_ts_clk_frq; + u8 ts_byte_clk_manual_setting; + u8 is_ts_backwards_compatible_mode; + struct cxd2880_tnrdmd_cfg_mem cfg_mem[CXD2880_TNRDMD_MAX_CFG_MEM_COUNT]; + u8 cfg_mem_last_entry; + struct cxd2880_tnrdmd_pid_ftr_cfg pid_ftr_cfg; + u8 pid_ftr_cfg_en; + void *user; + enum cxd2880_tnrdmd_chip_id chip_id; + enum cxd2880_tnrdmd_state state; + enum cxd2880_tnrdmd_clockmode clk_mode; + u32 frequency_khz; + enum cxd2880_dtv_sys sys; + enum cxd2880_dtv_bandwidth bandwidth; + u8 scan_mode; + struct cxd2880_atomic cancel; +}; + +enum cxd2880_ret cxd2880_tnrdmd_create(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_io *io, + struct cxd2880_tnrdmd_create_param + *create_param); + +enum cxd2880_ret cxd2880_tnrdmd_diver_create(struct cxd2880_tnrdmd + *tnr_dmd_main, + struct cxd2880_io *io_main, + struct cxd2880_tnrdmd *tnr_dmd_sub, + struct cxd2880_io *io_sub, + struct + cxd2880_tnrdmd_diver_create_param + *create_param); + +enum cxd2880_ret cxd2880_tnrdmd_init1(struct cxd2880_tnrdmd *tnr_dmd); + +enum cxd2880_ret cxd2880_tnrdmd_init2(struct cxd2880_tnrdmd *tnr_dmd); + +enum cxd2880_ret cxd2880_tnrdmd_check_internal_cpu_status(struct cxd2880_tnrdmd + *tnr_dmd, + u8 *task_completed); + +enum cxd2880_ret cxd2880_tnrdmd_common_tune_setting1(struct cxd2880_tnrdmd + *tnr_dmd, + enum cxd2880_dtv_sys sys, + u32 frequency_khz, + enum cxd2880_dtv_bandwidth + bandwidth, u8 one_seg_opt, + u8 one_seg_opt_shft_dir); + +enum cxd2880_ret cxd2880_tnrdmd_common_tune_setting2(struct cxd2880_tnrdmd + *tnr_dmd, + enum cxd2880_dtv_sys sys, + u8 en_fef_intmtnt_ctrl); + +enum cxd2880_ret cxd2880_tnrdmd_sleep(struct cxd2880_tnrdmd *tnr_dmd); + +enum cxd2880_ret cxd2880_tnrdmd_set_cfg(struct cxd2880_tnrdmd *tnr_dmd, + enum cxd2880_tnrdmd_cfg_id id, + int value); + +enum cxd2880_ret cxd2880_tnrdmd_gpio_set_cfg(struct cxd2880_tnrdmd *tnr_dmd, + u8 id, + u8 en, + enum cxd2880_tnrdmd_gpio_mode mode, + u8 open_drain, u8 invert); + +enum cxd2880_ret cxd2880_tnrdmd_gpio_set_cfg_sub(struct cxd2880_tnrdmd *tnr_dmd, + u8 id, + u8 en, + enum cxd2880_tnrdmd_gpio_mode + mode, u8 open_drain, + u8 invert); + +enum cxd2880_ret cxd2880_tnrdmd_gpio_read(struct cxd2880_tnrdmd *tnr_dmd, + u8 id, u8 *value); + +enum cxd2880_ret cxd2880_tnrdmd_gpio_read_sub(struct cxd2880_tnrdmd *tnr_dmd, + u8 id, u8 *value); + +enum cxd2880_ret cxd2880_tnrdmd_gpio_write(struct cxd2880_tnrdmd *tnr_dmd, + u8 id, u8 value); + +enum cxd2880_ret cxd2880_tnrdmd_gpio_write_sub(struct cxd2880_tnrdmd *tnr_dmd, + u8 id, u8 value); + +enum cxd2880_ret cxd2880_tnrdmd_interrupt_read(struct cxd2880_tnrdmd *tnr_dmd, + u16 *value); + +enum cxd2880_ret cxd2880_tnrdmd_interrupt_clear(struct cxd2880_tnrdmd *tnr_dmd, + u16 value); + +enum cxd2880_ret cxd2880_tnrdmd_ts_buf_clear(struct cxd2880_tnrdmd *tnr_dmd, + u8 clear_overflow_flag, + u8 clear_underflow_flag, + u8 clear_buf); + +enum cxd2880_ret cxd2880_tnrdmd_chip_id(struct cxd2880_tnrdmd *tnr_dmd, + enum cxd2880_tnrdmd_chip_id *chip_id); + +enum cxd2880_ret cxd2880_tnrdmd_set_and_save_reg_bits(struct cxd2880_tnrdmd + *tnr_dmd, + enum cxd2880_io_tgt tgt, + u8 bank, u8 address, + u8 value, u8 bit_mask); + +enum cxd2880_ret cxd2880_tnrdmd_set_scan_mode(struct cxd2880_tnrdmd *tnr_dmd, + enum cxd2880_dtv_sys sys, + u8 scan_mode_end); + +enum cxd2880_ret cxd2880_tnrdmd_set_pid_ftr(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_tnrdmd_pid_ftr_cfg + *pid_ftr_cfg); + +enum cxd2880_ret cxd2880_tnrdmd_set_rf_lvl_cmpstn(struct cxd2880_tnrdmd + *tnr_dmd, + enum + cxd2880_ret(*rf_lvl_cmpstn) + (struct cxd2880_tnrdmd *, + int *)); + +enum cxd2880_ret cxd2880_tnrdmd_set_rf_lvl_cmpstn_sub(struct cxd2880_tnrdmd + *tnr_dmd, + enum + cxd2880_ret + (*rf_lvl_cmpstn)(struct + cxd2880_tnrdmd + *, + int *)); + +enum cxd2880_ret cxd2880_tnrdmd_set_lna_thrs(struct cxd2880_tnrdmd *tnr_dmd, + struct + cxd2880_tnrdmd_lna_thrs_tbl_air + *tbl_air, + struct + cxd2880_tnrdmd_lna_thrs_tbl_cable + *tbl_cable); + +enum cxd2880_ret cxd2880_tnrdmd_set_lna_thrs_sub(struct cxd2880_tnrdmd *tnr_dmd, + struct + cxd2880_tnrdmd_lna_thrs_tbl_air + *tbl_air, + struct + cxd2880_tnrdmd_lna_thrs_tbl_cable + *tbl_cable); + +enum cxd2880_ret cxd2880_tnrdmd_set_ts_pin_high_low(struct cxd2880_tnrdmd + *tnr_dmd, u8 en, u8 value); + +enum cxd2880_ret cxd2880_tnrdmd_set_ts_output(struct cxd2880_tnrdmd *tnr_dmd, + u8 en); + +enum cxd2880_ret slvt_freeze_reg(struct cxd2880_tnrdmd *tnr_dmd); + +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_driver_version.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_driver_version.h new file mode 100644 index 0000000000000000000000000000000000000000..68fb3af04bd41719d407f333314635622cd982b0 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_driver_version.h @@ -0,0 +1,29 @@ +/* + * cxd2880_tnrdmd_driver_version.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * version information + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#define CXD2880_TNRDMD_DRIVER_VERSION "1.4.1 - 1.0.1" + +#define CXD2880_TNRDMD_DRIVER_RELEASE_DATE "2017-04-13" diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt.c new file mode 100644 index 0000000000000000000000000000000000000000..f36cf533ec1795bf033531b0a347b60d917fe35f --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt.c @@ -0,0 +1,1072 @@ +/* + * cxd2880_tnrdmd_dvbt.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * control functions for DVB-T + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include "cxd2880_tnrdmd_dvbt.h" +#include "cxd2880_tnrdmd_dvbt_mon.h" + +static enum cxd2880_ret x_tune_dvbt_demod_setting(struct cxd2880_tnrdmd + *tnr_dmd, + enum cxd2880_dtv_bandwidth + bandwidth, + enum cxd2880_tnrdmd_clockmode + clk_mode) +{ + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x31, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + { + u8 data_a[2] = { 0x52, 0x49 }; + u8 data_b[2] = { 0x5D, 0x55 }; + u8 data_c[2] = { 0x60, 0x00 }; + u8 *data = NULL; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x04) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x65, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x5D, + 0x07) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_SUB) { + u8 data[2] = { 0x01, 0x01 }; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xCE, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x04) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x5C, + 0xFB) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xA4, + 0x03) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x14) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xB0, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x25) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + { + u8 data[2] = { 0x01, 0xF0 }; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xF0, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if ((tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) || + (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB)) { + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x12) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x44, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) { + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x11) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x87, + 0xD2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_SUB) { + u8 data_a[3] = { 0x73, 0xCA, 0x49 }; + u8 data_b[3] = { 0xC8, 0x13, 0xAA }; + u8 data_c[3] = { 0xDC, 0x6C, 0x00 }; + u8 *data = NULL; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x04) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x68, data, + 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x04) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + switch (bandwidth) { + case CXD2880_DTV_BW_8_MHZ: + + { + u8 data_ac[5] = { 0x15, 0x00, 0x00, 0x00, + 0x00 + }; + u8 data_b[5] = { 0x14, 0x6A, 0xAA, 0xAA, + 0xAA + }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_ac; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x60, + data, + 5) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x4A, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + { + u8 data_a[2] = { 0x01, 0x28 }; + u8 data_b[2] = { 0x11, 0x44 }; + u8 data_c[2] = { 0x15, 0x28 }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x7D, + data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + { + u8 data = 0; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + case CXD2880_TNRDMD_CLOCKMODE_B: + data = 0x35; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = 0x34; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x71, + data) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + u8 data_a[5] = { 0x30, 0x00, 0x00, 0x90, + 0x00 + }; + u8 data_b[5] = { 0x36, 0x71, 0x00, 0xA3, + 0x55 + }; + u8 data_c[5] = { 0x38, 0x00, 0x00, 0xA8, + 0x00 + }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x4B, + &data[0], + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x51, + &data[2], + 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + { + u8 data[4] = { 0xB3, 0x00, 0x01, 0x02 }; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x72, + &data[0], + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x6B, + &data[2], + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + break; + + case CXD2880_DTV_BW_7_MHZ: + + { + u8 data_ac[5] = { 0x18, 0x00, 0x00, 0x00, + 0x00 + }; + u8 data_b[5] = { 0x17, 0x55, 0x55, 0x55, + 0x55 + }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_ac; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x60, + data, + 5) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x4A, + 0x02) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + { + u8 data_a[2] = { 0x12, 0x4C }; + u8 data_b[2] = { 0x1F, 0x15 }; + u8 data_c[2] = { 0x1F, 0xF8 }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x7D, + data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + { + u8 data = 0; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + case CXD2880_TNRDMD_CLOCKMODE_B: + data = 0x2F; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = 0x2E; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x71, + data) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + u8 data_a[5] = { 0x36, 0xDB, 0x00, 0xA4, + 0x92 + }; + u8 data_b[5] = { 0x3E, 0x38, 0x00, 0xBA, + 0xAA + }; + u8 data_c[5] = { 0x40, 0x00, 0x00, 0xC0, + 0x00 + }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x4B, + &data[0], + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x51, + &data[2], + 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + { + u8 data[4] = { 0xB8, 0x00, 0x00, 0x03 }; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x72, + &data[0], + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x6B, + &data[2], + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + break; + + case CXD2880_DTV_BW_6_MHZ: + + { + u8 data_ac[5] = { 0x1C, 0x00, 0x00, 0x00, + 0x00 + }; + u8 data_b[5] = { 0x1B, 0x38, 0xE3, 0x8E, + 0x38 + }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_ac; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x60, + data, + 5) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x4A, + 0x04) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + { + u8 data_a[2] = { 0x1F, 0xF8 }; + u8 data_b[2] = { 0x24, 0x43 }; + u8 data_c[2] = { 0x25, 0x4C }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x7D, + data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + { + u8 data = 0; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + case CXD2880_TNRDMD_CLOCKMODE_C: + data = 0x29; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = 0x2A; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x71, + data) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + u8 data_a[5] = { 0x40, 0x00, 0x00, 0xC0, + 0x00 + }; + u8 data_b[5] = { 0x48, 0x97, 0x00, 0xD9, + 0xC7 + }; + u8 data_c[5] = { 0x4A, 0xAA, 0x00, 0xDF, + 0xFF + }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x4B, + &data[0], + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x51, + &data[2], + 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + { + u8 data[4] = { 0xBE, 0xAB, 0x00, 0x03 }; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x72, + &data[0], + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x6B, + &data[2], + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + break; + + case CXD2880_DTV_BW_5_MHZ: + + { + u8 data_ac[5] = { 0x21, 0x99, 0x99, 0x99, + 0x99 + }; + u8 data_b[5] = { 0x20, 0xAA, 0xAA, 0xAA, + 0xAA + }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_ac; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x60, + data, + 5) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x4A, + 0x06) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + { + u8 data_a[2] = { 0x26, 0x5D }; + u8 data_b[2] = { 0x2B, 0x84 }; + u8 data_c[2] = { 0x2C, 0xC2 }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x7D, + data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + { + u8 data = 0; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + case CXD2880_TNRDMD_CLOCKMODE_B: + data = 0x24; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = 0x23; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x71, + data) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + u8 data_a[5] = { 0x4C, 0xCC, 0x00, 0xE6, + 0x66 + }; + u8 data_b[5] = { 0x57, 0x1C, 0x01, 0x05, + 0x55 + }; + u8 data_c[5] = { 0x59, 0x99, 0x01, 0x0C, + 0xCC + }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x4B, + &data[0], + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x51, + &data[2], + 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + { + u8 data[4] = { 0xC8, 0x01, 0x00, 0x03 }; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x72, + &data[0], + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x6B, + &data[2], + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + break; + + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xFD, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret x_sleep_dvbt_demod_setting(struct cxd2880_tnrdmd + *tnr_dmd) +{ + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x04) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x5C, + 0xD8) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xA4, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) { + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x11) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x87, + 0x04) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret dvbt_set_profile(struct cxd2880_tnrdmd *tnr_dmd, + enum cxd2880_dvbt_profile profile) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x67, + (profile == + CXD2880_DVBT_PROFILE_HP) ? 0x00 : 0x01) != + CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_tune1(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_dvbt_tune_param + *tune_param) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!tune_param)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = + cxd2880_tnrdmd_common_tune_setting1(tnr_dmd, CXD2880_DTV_SYS_DVBT, + tune_param->center_freq_khz, + tune_param->bandwidth, 0, 0); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = + x_tune_dvbt_demod_setting(tnr_dmd, tune_param->bandwidth, + tnr_dmd->clk_mode); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = + x_tune_dvbt_demod_setting(tnr_dmd->diver_sub, + tune_param->bandwidth, + tnr_dmd->diver_sub->clk_mode); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + ret = dvbt_set_profile(tnr_dmd, tune_param->profile); + if (ret != CXD2880_RESULT_OK) + return ret; + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_tune2(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_dvbt_tune_param + *tune_param) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!tune_param)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = + cxd2880_tnrdmd_common_tune_setting2(tnr_dmd, CXD2880_DTV_SYS_DVBT, + 0); + if (ret != CXD2880_RESULT_OK) + return ret; + + tnr_dmd->state = CXD2880_TNRDMD_STATE_ACTIVE; + tnr_dmd->frequency_khz = tune_param->center_freq_khz; + tnr_dmd->sys = CXD2880_DTV_SYS_DVBT; + tnr_dmd->bandwidth = tune_param->bandwidth; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + tnr_dmd->diver_sub->state = CXD2880_TNRDMD_STATE_ACTIVE; + tnr_dmd->diver_sub->frequency_khz = tune_param->center_freq_khz; + tnr_dmd->diver_sub->sys = CXD2880_DTV_SYS_DVBT; + tnr_dmd->diver_sub->bandwidth = tune_param->bandwidth; + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_sleep_setting(struct cxd2880_tnrdmd + *tnr_dmd) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = x_sleep_dvbt_demod_setting(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = x_sleep_dvbt_demod_setting(tnr_dmd->diver_sub); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_check_demod_lock(struct cxd2880_tnrdmd + *tnr_dmd, + enum + cxd2880_tnrdmd_lock_result + *lock) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + u8 sync_stat = 0; + u8 ts_lock = 0; + u8 unlock_detected = 0; + u8 unlock_detected_sub = 0; + + if ((!tnr_dmd) || (!lock)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = + cxd2880_tnrdmd_dvbt_mon_sync_stat(tnr_dmd, &sync_stat, &ts_lock, + &unlock_detected); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SINGLE) { + if (sync_stat == 6) + *lock = CXD2880_TNRDMD_LOCK_RESULT_LOCKED; + else if (unlock_detected) + *lock = CXD2880_TNRDMD_LOCK_RESULT_UNLOCKED; + else + *lock = CXD2880_TNRDMD_LOCK_RESULT_NOTDETECT; + + return ret; + } + + if (sync_stat == 6) { + *lock = CXD2880_TNRDMD_LOCK_RESULT_LOCKED; + return ret; + } + + ret = + cxd2880_tnrdmd_dvbt_mon_sync_stat_sub(tnr_dmd, &sync_stat, + &unlock_detected_sub); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (sync_stat == 6) + *lock = CXD2880_TNRDMD_LOCK_RESULT_LOCKED; + else if (unlock_detected && unlock_detected_sub) + *lock = CXD2880_TNRDMD_LOCK_RESULT_UNLOCKED; + else + *lock = CXD2880_TNRDMD_LOCK_RESULT_NOTDETECT; + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_check_ts_lock(struct cxd2880_tnrdmd + *tnr_dmd, + enum + cxd2880_tnrdmd_lock_result + *lock) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + u8 sync_stat = 0; + u8 ts_lock = 0; + u8 unlock_detected = 0; + u8 unlock_detected_sub = 0; + + if ((!tnr_dmd) || (!lock)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = + cxd2880_tnrdmd_dvbt_mon_sync_stat(tnr_dmd, &sync_stat, &ts_lock, + &unlock_detected); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SINGLE) { + if (ts_lock) + *lock = CXD2880_TNRDMD_LOCK_RESULT_LOCKED; + else if (unlock_detected) + *lock = CXD2880_TNRDMD_LOCK_RESULT_UNLOCKED; + else + *lock = CXD2880_TNRDMD_LOCK_RESULT_NOTDETECT; + + return ret; + } + + if (ts_lock) { + *lock = CXD2880_TNRDMD_LOCK_RESULT_LOCKED; + return ret; + } else if (!unlock_detected) { + *lock = CXD2880_TNRDMD_LOCK_RESULT_NOTDETECT; + return ret; + } + + ret = + cxd2880_tnrdmd_dvbt_mon_sync_stat_sub(tnr_dmd, &sync_stat, + &unlock_detected_sub); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (unlock_detected && unlock_detected_sub) + *lock = CXD2880_TNRDMD_LOCK_RESULT_UNLOCKED; + else + *lock = CXD2880_TNRDMD_LOCK_RESULT_NOTDETECT; + + return ret; +} diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt.h new file mode 100644 index 0000000000000000000000000000000000000000..de394d8e27f323a9ccfacbe3e56a3d6f40b6babe --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt.h @@ -0,0 +1,62 @@ +/* + * cxd2880_tnrdmd_dvbt.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * control interface for DVB-T + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef CXD2880_TNRDMD_DVBT_H +#define CXD2880_TNRDMD_DVBT_H + +#include "cxd2880_common.h" +#include "cxd2880_tnrdmd.h" + +struct cxd2880_dvbt_tune_param { + u32 center_freq_khz; + enum cxd2880_dtv_bandwidth bandwidth; + enum cxd2880_dvbt_profile profile; +}; + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_tune1(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_dvbt_tune_param + *tune_param); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_tune2(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_dvbt_tune_param + *tune_param); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_sleep_setting(struct cxd2880_tnrdmd + *tnr_dmd); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_check_demod_lock(struct cxd2880_tnrdmd + *tnr_dmd, + enum + cxd2880_tnrdmd_lock_result + *lock); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_check_ts_lock(struct cxd2880_tnrdmd + *tnr_dmd, + enum + cxd2880_tnrdmd_lock_result + *lock); + +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2.c new file mode 100644 index 0000000000000000000000000000000000000000..bdad65b7298ab0ad131a6e6579e304fb279359a5 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2.c @@ -0,0 +1,1309 @@ +/* + * cxd2880_tnrdmd_dvbt2.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * control functions for DVB-T2 + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include "cxd2880_tnrdmd_dvbt2.h" +#include "cxd2880_tnrdmd_dvbt2_mon.h" + +static enum cxd2880_ret x_tune_dvbt2_demod_setting(struct cxd2880_tnrdmd + *tnr_dmd, + enum cxd2880_dtv_bandwidth + bandwidth, + enum cxd2880_tnrdmd_clockmode + clk_mode) +{ + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x31, + 0x02) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x04) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x5D, + 0x0B) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_SUB) { + u8 data[2] = { 0x01, 0x01 }; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xCE, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + { + u8 data[14] = { 0x07, 0x06, 0x01, 0xF0, + 0x00, 0x00, 0x04, 0xB0, 0x00, 0x00, 0x09, 0x9C, 0x0E, + 0x4C + }; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x20) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x8A, + data[0]) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x90, + data[1]) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x25) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xF0, &data[2], + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x2A) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xDC, + data[4]) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xDE, + data[5]) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x2D) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x73, &data[6], + 4) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x8F, &data[10], + 4) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + { + u8 data_a_1[9] = { 0x52, 0x49, 0x2C, 0x51, + 0x51, 0x3D, 0x15, 0x29, 0x0C + }; + u8 data_b_1[9] = { 0x5D, 0x55, 0x32, 0x5C, + 0x5C, 0x45, 0x17, 0x2E, 0x0D + }; + u8 data_c_1[9] = { 0x60, 0x00, 0x34, 0x5E, + 0x5E, 0x47, 0x18, 0x2F, 0x0E + }; + + u8 data_a_2[13] = { 0x04, 0xE7, 0x94, 0x92, + 0x09, 0xCF, 0x7E, 0xD0, 0x49, 0xCD, 0xCD, 0x1F, 0x5B + }; + u8 data_b_2[13] = { 0x05, 0x90, 0x27, 0x55, + 0x0B, 0x20, 0x8F, 0xD6, 0xEA, 0xC8, 0xC8, 0x23, 0x91 + }; + u8 data_c_2[13] = { 0x05, 0xB8, 0xD8, 0x00, + 0x0B, 0x72, 0x93, 0xF3, 0x00, 0xCD, 0xCD, 0x24, 0x95 + }; + + u8 data_a_3[5] = { 0x0B, 0x6A, 0xC9, 0x03, + 0x33 + }; + u8 data_b_3[5] = { 0x01, 0x02, 0xE4, 0x03, + 0x39 + }; + u8 data_c_3[5] = { 0x01, 0x02, 0xEB, 0x03, + 0x3B + }; + + u8 *data_1 = NULL; + u8 *data_2 = NULL; + u8 *data_3 = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data_1 = data_a_1; + data_2 = data_a_2; + data_3 = data_a_3; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data_1 = data_b_1; + data_2 = data_b_2; + data_3 = data_b_3; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data_1 = data_c_1; + data_2 = data_c_2; + data_3 = data_c_3; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x04) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x1D, + &data_1[0], 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x22, + data_1[3]) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x24, + data_1[4]) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x26, + data_1[5]) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x29, + &data_1[6], 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x2D, + data_1[8]) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_SUB) { + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x2E, + &data_2[0], + 6) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x35, + &data_2[6], + 7) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x3C, + &data_3[0], 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x56, + &data_3[2], 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + switch (bandwidth) { + case CXD2880_DTV_BW_8_MHZ: + + { + u8 data_ac[6] = { 0x15, 0x00, 0x00, 0x00, + 0x00, 0x00 + }; + u8 data_b[6] = { 0x14, 0x6A, 0xAA, 0xAA, + 0xAB, 0x00 + }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_ac; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x10, + data, + 6) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x4A, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + { + u8 data_a[2] = { 0x19, 0xD2 }; + u8 data_bc[2] = { 0x3F, 0xFF }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_bc; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x19, + data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + { + u8 data_a[2] = { 0x06, 0x2A }; + u8 data_b[2] = { 0x06, 0x29 }; + u8 data_c[2] = { 0x06, 0x28 }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x1B, + data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + u8 data_a[9] = { 0x28, 0x00, 0x50, 0x00, + 0x60, 0x00, 0x00, 0x90, 0x00 + }; + u8 data_b[9] = { 0x2D, 0x5E, 0x5A, 0xBD, + 0x6C, 0xE3, 0x00, 0xA3, 0x55 + }; + u8 data_c[9] = { 0x2E, 0xAA, 0x5D, 0x55, + 0x70, 0x00, 0x00, 0xA8, 0x00 + }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x4B, + data, + 9) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + break; + + case CXD2880_DTV_BW_7_MHZ: + + { + u8 data_ac[6] = { 0x18, 0x00, 0x00, 0x00, + 0x00, 0x00 + }; + u8 data_b[6] = { 0x17, 0x55, 0x55, 0x55, + 0x55, 0x00 + }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_ac; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x10, + data, + 6) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x4A, + 0x02) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + { + u8 data[2] = { 0x3F, 0xFF }; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x19, + data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + { + u8 data_a[2] = { 0x06, 0x23 }; + u8 data_b[2] = { 0x06, 0x22 }; + u8 data_c[2] = { 0x06, 0x21 }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x1B, + data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + u8 data_a[9] = { 0x2D, 0xB6, 0x5B, 0x6D, + 0x6D, 0xB6, 0x00, 0xA4, 0x92 + }; + u8 data_b[9] = { 0x33, 0xDA, 0x67, 0xB4, + 0x7C, 0x71, 0x00, 0xBA, 0xAA + }; + u8 data_c[9] = { 0x35, 0x55, 0x6A, 0xAA, + 0x80, 0x00, 0x00, 0xC0, 0x00 + }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x4B, + data, + 9) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + break; + + case CXD2880_DTV_BW_6_MHZ: + + { + u8 data_ac[6] = { 0x1C, 0x00, 0x00, 0x00, + 0x00, 0x00 + }; + u8 data_b[6] = { 0x1B, 0x38, 0xE3, 0x8E, + 0x39, 0x00 + }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_ac; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x10, + data, + 6) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x4A, + 0x04) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + { + u8 data[2] = { 0x3F, 0xFF }; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x19, + data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + { + u8 data_a[2] = { 0x06, 0x1C }; + u8 data_b[2] = { 0x06, 0x1B }; + u8 data_c[2] = { 0x06, 0x1A }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x1B, + data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + u8 data_a[9] = { 0x35, 0x55, 0x6A, 0xAA, + 0x80, 0x00, 0x00, 0xC0, 0x00 + }; + u8 data_b[9] = { 0x3C, 0x7E, 0x78, 0xFC, + 0x91, 0x2F, 0x00, 0xD9, 0xC7 + }; + u8 data_c[9] = { 0x3E, 0x38, 0x7C, 0x71, + 0x95, 0x55, 0x00, 0xDF, 0xFF + }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x4B, + data, + 9) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + break; + + case CXD2880_DTV_BW_5_MHZ: + + { + u8 data_ac[6] = { 0x21, 0x99, 0x99, 0x99, + 0x9A, 0x00 + }; + u8 data_b[6] = { 0x20, 0xAA, 0xAA, 0xAA, + 0xAB, 0x00 + }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_ac; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x10, + data, + 6) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x4A, + 0x06) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + { + u8 data[2] = { 0x3F, 0xFF }; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x19, + data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + { + u8 data_a[2] = { 0x06, 0x15 }; + u8 data_b[2] = { 0x06, 0x15 }; + u8 data_c[2] = { 0x06, 0x14 }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x1B, + data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + u8 data_a[9] = { 0x40, 0x00, 0x6A, 0xAA, + 0x80, 0x00, 0x00, 0xE6, 0x66 + }; + u8 data_b[9] = { 0x48, 0x97, 0x78, 0xFC, + 0x91, 0x2F, 0x01, 0x05, 0x55 + }; + u8 data_c[9] = { 0x4A, 0xAA, 0x7C, 0x71, + 0x95, 0x55, 0x01, 0x0C, 0xCC + }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x4B, + data, + 9) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + break; + + case CXD2880_DTV_BW_1_7_MHZ: + + { + u8 data_a[6] = { 0x68, 0x0F, 0xA2, 0x32, + 0xCF, 0x03 + }; + u8 data_c[6] = { 0x68, 0x0F, 0xA2, 0x32, + 0xCF, 0x03 + }; + u8 data_b[6] = { 0x65, 0x2B, 0xA4, 0xCD, + 0xD8, 0x03 + }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x10, + data, + 6) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x4A, + 0x03) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + { + u8 data[2] = { 0x3F, 0xFF }; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x19, + data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + { + u8 data_a[2] = { 0x06, 0x0C }; + u8 data_b[2] = { 0x06, 0x0C }; + u8 data_c[2] = { 0x06, 0x0B }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x1B, + data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + u8 data_a[9] = { 0x40, 0x00, 0x6A, 0xAA, + 0x80, 0x00, 0x02, 0xC9, 0x8F + }; + u8 data_b[9] = { 0x48, 0x97, 0x78, 0xFC, + 0x91, 0x2F, 0x03, 0x29, 0x5D + }; + u8 data_c[9] = { 0x4A, 0xAA, 0x7C, 0x71, + 0x95, 0x55, 0x03, 0x40, 0x7D + }; + u8 *data = NULL; + + switch (clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + data = data_a; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + data = data_b; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + data = data_c; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x4B, + data, + 9) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + break; + + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xFD, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret x_sleep_dvbt2_demod_setting(struct cxd2880_tnrdmd + *tnr_dmd) +{ + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + u8 data[] = { 0, 1, 0, 2, + 0, 4, 0, 8, 0, 16, 0, 32 + }; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x1D) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x47, data, + 12) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret dvbt2_set_profile(struct cxd2880_tnrdmd *tnr_dmd, + enum cxd2880_dvbt2_profile profile) +{ + u8 t2_mode_tune_mode = 0; + u8 seq_not2_dtime = 0; + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + { + u8 dtime1 = 0; + u8 dtime2 = 0; + + switch (tnr_dmd->clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + dtime1 = 0x27; + dtime2 = 0x0C; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + dtime1 = 0x2C; + dtime2 = 0x0D; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + dtime1 = 0x2E; + dtime2 = 0x0E; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + switch (profile) { + case CXD2880_DVBT2_PROFILE_BASE: + t2_mode_tune_mode = 0x01; + seq_not2_dtime = dtime2; + break; + + case CXD2880_DVBT2_PROFILE_LITE: + t2_mode_tune_mode = 0x05; + seq_not2_dtime = dtime1; + break; + + case CXD2880_DVBT2_PROFILE_ANY: + t2_mode_tune_mode = 0x00; + seq_not2_dtime = dtime1; + break; + + default: + return CXD2880_RESULT_ERROR_ARG; + } + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x2E) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x10, + t2_mode_tune_mode) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x04) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x2C, + seq_not2_dtime) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_tune1(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_dvbt2_tune_param + *tune_param) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!tune_param)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + if ((tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) && + (tune_param->profile == CXD2880_DVBT2_PROFILE_ANY)) + return CXD2880_RESULT_ERROR_NOSUPPORT; + + ret = + cxd2880_tnrdmd_common_tune_setting1(tnr_dmd, CXD2880_DTV_SYS_DVBT2, + tune_param->center_freq_khz, + tune_param->bandwidth, 0, 0); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = + x_tune_dvbt2_demod_setting(tnr_dmd, tune_param->bandwidth, + tnr_dmd->clk_mode); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = + x_tune_dvbt2_demod_setting(tnr_dmd->diver_sub, + tune_param->bandwidth, + tnr_dmd->diver_sub->clk_mode); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + ret = dvbt2_set_profile(tnr_dmd, tune_param->profile); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = + dvbt2_set_profile(tnr_dmd->diver_sub, tune_param->profile); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + if (tune_param->data_plp_id == CXD2880_DVBT2_TUNE_PARAM_PLPID_AUTO) { + ret = cxd2880_tnrdmd_dvbt2_set_plp_cfg(tnr_dmd, 1, 0); + if (ret != CXD2880_RESULT_OK) + return ret; + } else { + ret = + cxd2880_tnrdmd_dvbt2_set_plp_cfg(tnr_dmd, 0, + (u8)(tune_param->data_plp_id)); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_tune2(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_dvbt2_tune_param + *tune_param) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!tune_param)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + { + u8 en_fef_intmtnt_ctrl = 1; + + switch (tune_param->profile) { + case CXD2880_DVBT2_PROFILE_BASE: + en_fef_intmtnt_ctrl = tnr_dmd->en_fef_intmtnt_base; + break; + case CXD2880_DVBT2_PROFILE_LITE: + en_fef_intmtnt_ctrl = tnr_dmd->en_fef_intmtnt_lite; + break; + case CXD2880_DVBT2_PROFILE_ANY: + if (tnr_dmd->en_fef_intmtnt_base && + tnr_dmd->en_fef_intmtnt_lite) + en_fef_intmtnt_ctrl = 1; + else + en_fef_intmtnt_ctrl = 0; + break; + default: + return CXD2880_RESULT_ERROR_ARG; + } + + ret = + cxd2880_tnrdmd_common_tune_setting2(tnr_dmd, + CXD2880_DTV_SYS_DVBT2, + en_fef_intmtnt_ctrl); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + tnr_dmd->state = CXD2880_TNRDMD_STATE_ACTIVE; + tnr_dmd->frequency_khz = tune_param->center_freq_khz; + tnr_dmd->sys = CXD2880_DTV_SYS_DVBT2; + tnr_dmd->bandwidth = tune_param->bandwidth; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + tnr_dmd->diver_sub->state = CXD2880_TNRDMD_STATE_ACTIVE; + tnr_dmd->diver_sub->frequency_khz = tune_param->center_freq_khz; + tnr_dmd->diver_sub->sys = CXD2880_DTV_SYS_DVBT2; + tnr_dmd->diver_sub->bandwidth = tune_param->bandwidth; + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_sleep_setting(struct cxd2880_tnrdmd + *tnr_dmd) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = x_sleep_dvbt2_demod_setting(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = x_sleep_dvbt2_demod_setting(tnr_dmd->diver_sub); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_check_demod_lock(struct cxd2880_tnrdmd + *tnr_dmd, + enum + cxd2880_tnrdmd_lock_result + *lock) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + u8 sync_stat = 0; + u8 ts_lock = 0; + u8 unlock_detected = 0; + u8 unlock_detected_sub = 0; + + if ((!tnr_dmd) || (!lock)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = + cxd2880_tnrdmd_dvbt2_mon_sync_stat(tnr_dmd, &sync_stat, &ts_lock, + &unlock_detected); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SINGLE) { + if (sync_stat == 6) + *lock = CXD2880_TNRDMD_LOCK_RESULT_LOCKED; + else if (unlock_detected) + *lock = CXD2880_TNRDMD_LOCK_RESULT_UNLOCKED; + else + *lock = CXD2880_TNRDMD_LOCK_RESULT_NOTDETECT; + + return ret; + } + + if (sync_stat == 6) { + *lock = CXD2880_TNRDMD_LOCK_RESULT_LOCKED; + return ret; + } + + ret = + cxd2880_tnrdmd_dvbt2_mon_sync_stat_sub(tnr_dmd, &sync_stat, + &unlock_detected_sub); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (sync_stat == 6) + *lock = CXD2880_TNRDMD_LOCK_RESULT_LOCKED; + else if (unlock_detected && unlock_detected_sub) + *lock = CXD2880_TNRDMD_LOCK_RESULT_UNLOCKED; + else + *lock = CXD2880_TNRDMD_LOCK_RESULT_NOTDETECT; + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_check_ts_lock(struct cxd2880_tnrdmd + *tnr_dmd, + enum + cxd2880_tnrdmd_lock_result + *lock) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + u8 sync_stat = 0; + u8 ts_lock = 0; + u8 unlock_detected = 0; + u8 unlock_detected_sub = 0; + + if ((!tnr_dmd) || (!lock)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = + cxd2880_tnrdmd_dvbt2_mon_sync_stat(tnr_dmd, &sync_stat, &ts_lock, + &unlock_detected); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SINGLE) { + if (ts_lock) + *lock = CXD2880_TNRDMD_LOCK_RESULT_LOCKED; + else if (unlock_detected) + *lock = CXD2880_TNRDMD_LOCK_RESULT_UNLOCKED; + else + *lock = CXD2880_TNRDMD_LOCK_RESULT_NOTDETECT; + + return ret; + } + + if (ts_lock) { + *lock = CXD2880_TNRDMD_LOCK_RESULT_LOCKED; + return ret; + } else if (!unlock_detected) { + *lock = CXD2880_TNRDMD_LOCK_RESULT_NOTDETECT; + return ret; + } + + ret = + cxd2880_tnrdmd_dvbt2_mon_sync_stat_sub(tnr_dmd, &sync_stat, + &unlock_detected_sub); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (unlock_detected && unlock_detected_sub) + *lock = CXD2880_TNRDMD_LOCK_RESULT_UNLOCKED; + else + *lock = CXD2880_TNRDMD_LOCK_RESULT_NOTDETECT; + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_set_plp_cfg(struct cxd2880_tnrdmd + *tnr_dmd, u8 auto_plp, + u8 plp_id) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x23) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (!auto_plp) { + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xAF, + plp_id) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xAD, + auto_plp ? 0x00 : 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_diver_fef_setting(struct cxd2880_tnrdmd + *tnr_dmd) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SINGLE) + return CXD2880_RESULT_OK; + + { + struct cxd2880_dvbt2_ofdm ofdm; + + ret = cxd2880_tnrdmd_dvbt2_mon_ofdm(tnr_dmd, &ofdm); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (!ofdm.mixed) + return CXD2880_RESULT_OK; + } + + { + u8 data[] = { 0, 8, 0, 16, + 0, 32, 0, 64, 0, 128, 1, 0 + }; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x1D) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x47, data, + 12) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_check_l1post_valid(struct cxd2880_tnrdmd + *tnr_dmd, + u8 *l1_post_valid) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + u8 data; + + if ((!tnr_dmd) || (!l1_post_valid)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x86, &data, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + *l1_post_valid = data & 0x01; + + return ret; +} diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2.h new file mode 100644 index 0000000000000000000000000000000000000000..8735280f0143ec5a7304dbeca39a510e346a0071 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2.h @@ -0,0 +1,82 @@ +/* + * cxd2880_tnrdmd_dvbt2.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * control interface for DVB-T2 + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef CXD2880_TNRDMD_DVBT2_H +#define CXD2880_TNRDMD_DVBT2_H + +#include "cxd2880_common.h" +#include "cxd2880_tnrdmd.h" + +enum cxd2880_tnrdmd_dvbt2_tune_info { + CXD2880_TNRDMD_DVBT2_TUNE_INFO_OK, + CXD2880_TNRDMD_DVBT2_TUNE_INFO_INVALID_PLP_ID +}; + +struct cxd2880_dvbt2_tune_param { + u32 center_freq_khz; + enum cxd2880_dtv_bandwidth bandwidth; + u16 data_plp_id; + enum cxd2880_dvbt2_profile profile; + enum cxd2880_tnrdmd_dvbt2_tune_info tune_info; +}; + +#define CXD2880_DVBT2_TUNE_PARAM_PLPID_AUTO 0xFFFF + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_tune1(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_dvbt2_tune_param + *tune_param); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_tune2(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_dvbt2_tune_param + *tune_param); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_sleep_setting(struct cxd2880_tnrdmd + *tnr_dmd); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_check_demod_lock(struct cxd2880_tnrdmd + *tnr_dmd, + enum + cxd2880_tnrdmd_lock_result + *lock); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_check_ts_lock(struct cxd2880_tnrdmd + *tnr_dmd, + enum + cxd2880_tnrdmd_lock_result + *lock); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_set_plp_cfg(struct cxd2880_tnrdmd + *tnr_dmd, u8 auto_plp, + u8 plp_id); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_diver_fef_setting(struct cxd2880_tnrdmd + *tnr_dmd); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_check_l1post_valid(struct cxd2880_tnrdmd + *tnr_dmd, + u8 *l1_post_valid); + +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2_mon.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2_mon.c new file mode 100644 index 0000000000000000000000000000000000000000..235db16f4a08faf05db3aea737251fa5f82f143e --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2_mon.c @@ -0,0 +1,2523 @@ +/* + * cxd2880_tnrdmd_dvbt2_mon.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * DVB-T2 monitor functions + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include "cxd2880_tnrdmd_mon.h" +#include "cxd2880_tnrdmd_dvbt2.h" +#include "cxd2880_tnrdmd_dvbt2_mon.h" +#include "cxd2880_math.h" + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_sync_stat(struct cxd2880_tnrdmd + *tnr_dmd, u8 *sync_stat, + u8 *ts_lock_stat, + u8 *unlock_detected) +{ + if ((!tnr_dmd) || (!sync_stat) || (!ts_lock_stat) || (!unlock_detected)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + { + u8 data; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x10, &data, + sizeof(data)) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + *sync_stat = data & 0x07; + *ts_lock_stat = ((data & 0x20) ? 1 : 0); + *unlock_detected = ((data & 0x10) ? 1 : 0); + } + + if (*sync_stat == 0x07) + return CXD2880_RESULT_ERROR_HW_STATE; + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_sync_stat_sub(struct cxd2880_tnrdmd + *tnr_dmd, + u8 *sync_stat, + u8 *unlock_detected) +{ + u8 ts_lock_stat = 0; + + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!sync_stat) || (!unlock_detected)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return CXD2880_RESULT_ERROR_ARG; + + ret = + cxd2880_tnrdmd_dvbt2_mon_sync_stat(tnr_dmd->diver_sub, sync_stat, + &ts_lock_stat, unlock_detected); + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_carrier_offset(struct cxd2880_tnrdmd + *tnr_dmd, int *offset) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!offset)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + { + u8 data[4]; + u32 ctl_val = 0; + u8 sync_state = 0; + u8 ts_lock = 0; + u8 unlock_detected = 0; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + ret = + cxd2880_tnrdmd_dvbt2_mon_sync_stat(tnr_dmd, &sync_state, + &ts_lock, + &unlock_detected); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (sync_state != 6) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x30, data, + sizeof(data)) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + slvt_unfreeze_reg(tnr_dmd); + + ctl_val = + ((data[0] & 0x0F) << 24) | (data[1] << 16) | (data[2] << 8) + | (data[3]); + *offset = cxd2880_convert2s_complement(ctl_val, 28); + + switch (tnr_dmd->bandwidth) { + case CXD2880_DTV_BW_1_7_MHZ: + *offset = -1 * ((*offset) / 582); + break; + case CXD2880_DTV_BW_5_MHZ: + case CXD2880_DTV_BW_6_MHZ: + case CXD2880_DTV_BW_7_MHZ: + case CXD2880_DTV_BW_8_MHZ: + *offset = + -1 * ((*offset) * (u8)tnr_dmd->bandwidth / 940); + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_carrier_offset_sub(struct + cxd2880_tnrdmd + *tnr_dmd, + int *offset) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!offset)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return CXD2880_RESULT_ERROR_ARG; + + ret = + cxd2880_tnrdmd_dvbt2_mon_carrier_offset(tnr_dmd->diver_sub, offset); + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_l1_pre(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_dvbt2_l1pre + *l1_pre) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!l1_pre)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + { + u8 data[37]; + u8 sync_state = 0; + u8 ts_lock = 0; + u8 unlock_detected = 0; + u8 version = 0; + enum cxd2880_dvbt2_profile profile; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + ret = + cxd2880_tnrdmd_dvbt2_mon_sync_stat(tnr_dmd, &sync_state, + &ts_lock, + &unlock_detected); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return ret; + } + + if (sync_state < 5) { + if (tnr_dmd->diver_mode == + CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = + cxd2880_tnrdmd_dvbt2_mon_sync_stat_sub + (tnr_dmd, &sync_state, &unlock_detected); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return ret; + } + + if (sync_state < 5) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + } else { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + } + + ret = cxd2880_tnrdmd_dvbt2_mon_profile(tnr_dmd, &profile); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return ret; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x61, data, + sizeof(data)) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + slvt_unfreeze_reg(tnr_dmd); + + l1_pre->type = (enum cxd2880_dvbt2_l1pre_type)data[0]; + l1_pre->bw_ext = data[1] & 0x01; + l1_pre->s1 = (enum cxd2880_dvbt2_s1)(data[2] & 0x07); + l1_pre->s2 = data[3] & 0x0F; + l1_pre->l1_rep = data[4] & 0x01; + l1_pre->gi = (enum cxd2880_dvbt2_guard)(data[5] & 0x07); + l1_pre->papr = (enum cxd2880_dvbt2_papr)(data[6] & 0x0F); + l1_pre->mod = + (enum cxd2880_dvbt2_l1post_constell)(data[7] & 0x0F); + l1_pre->cr = (enum cxd2880_dvbt2_l1post_cr)(data[8] & 0x03); + l1_pre->fec = + (enum cxd2880_dvbt2_l1post_fec_type)(data[9] & 0x03); + l1_pre->l1_post_size = (data[10] & 0x03) << 16; + l1_pre->l1_post_size |= (data[11]) << 8; + l1_pre->l1_post_size |= (data[12]); + l1_pre->l1_post_info_size = (data[13] & 0x03) << 16; + l1_pre->l1_post_info_size |= (data[14]) << 8; + l1_pre->l1_post_info_size |= (data[15]); + l1_pre->pp = (enum cxd2880_dvbt2_pp)(data[16] & 0x0F); + l1_pre->tx_id_availability = data[17]; + l1_pre->cell_id = (data[18] << 8); + l1_pre->cell_id |= (data[19]); + l1_pre->network_id = (data[20] << 8); + l1_pre->network_id |= (data[21]); + l1_pre->sys_id = (data[22] << 8); + l1_pre->sys_id |= (data[23]); + l1_pre->num_frames = data[24]; + l1_pre->num_symbols = (data[25] & 0x0F) << 8; + l1_pre->num_symbols |= data[26]; + l1_pre->regen = data[27] & 0x07; + l1_pre->post_ext = data[28] & 0x01; + l1_pre->num_rf_freqs = data[29] & 0x07; + l1_pre->rf_idx = data[30] & 0x07; + version = (data[31] & 0x03) << 2; + version |= (data[32] & 0xC0) >> 6; + l1_pre->t2_version = (enum cxd2880_dvbt2_version)version; + l1_pre->l1_post_scrambled = (data[32] & 0x20) >> 5; + l1_pre->t2_base_lite = (data[32] & 0x10) >> 4; + l1_pre->crc32 = (data[33] << 24); + l1_pre->crc32 |= (data[34] << 16); + l1_pre->crc32 |= (data[35] << 8); + l1_pre->crc32 |= data[36]; + + if (profile == CXD2880_DVBT2_PROFILE_BASE) { + switch ((l1_pre->s2 >> 1)) { + case CXD2880_DVBT2_BASE_S2_M1K_G_ANY: + l1_pre->fft_mode = CXD2880_DVBT2_M1K; + break; + case CXD2880_DVBT2_BASE_S2_M2K_G_ANY: + l1_pre->fft_mode = CXD2880_DVBT2_M2K; + break; + case CXD2880_DVBT2_BASE_S2_M4K_G_ANY: + l1_pre->fft_mode = CXD2880_DVBT2_M4K; + break; + case CXD2880_DVBT2_BASE_S2_M8K_G_DVBT: + case CXD2880_DVBT2_BASE_S2_M8K_G_DVBT2: + l1_pre->fft_mode = CXD2880_DVBT2_M8K; + break; + case CXD2880_DVBT2_BASE_S2_M16K_G_ANY: + l1_pre->fft_mode = CXD2880_DVBT2_M16K; + break; + case CXD2880_DVBT2_BASE_S2_M32K_G_DVBT: + case CXD2880_DVBT2_BASE_S2_M32K_G_DVBT2: + l1_pre->fft_mode = CXD2880_DVBT2_M32K; + break; + default: + return CXD2880_RESULT_ERROR_HW_STATE; + } + } else if (profile == CXD2880_DVBT2_PROFILE_LITE) { + switch ((l1_pre->s2 >> 1)) { + case CXD2880_DVBT2_LITE_S2_M2K_G_ANY: + l1_pre->fft_mode = CXD2880_DVBT2_M2K; + break; + case CXD2880_DVBT2_LITE_S2_M4K_G_ANY: + l1_pre->fft_mode = CXD2880_DVBT2_M4K; + break; + case CXD2880_DVBT2_LITE_S2_M8K_G_DVBT: + case CXD2880_DVBT2_LITE_S2_M8K_G_DVBT2: + l1_pre->fft_mode = CXD2880_DVBT2_M8K; + break; + case CXD2880_DVBT2_LITE_S2_M16K_G_DVBT: + case CXD2880_DVBT2_LITE_S2_M16K_G_DVBT2: + l1_pre->fft_mode = CXD2880_DVBT2_M16K; + break; + default: + return CXD2880_RESULT_ERROR_HW_STATE; + } + } else { + return CXD2880_RESULT_ERROR_HW_STATE; + } + + l1_pre->mixed = l1_pre->s2 & 0x01; + } + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_version(struct cxd2880_tnrdmd + *tnr_dmd, + enum cxd2880_dvbt2_version + *ver) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + u8 version = 0; + + if ((!tnr_dmd) || (!ver)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + { + u8 data[2]; + u8 sync_state = 0; + u8 ts_lock = 0; + u8 unlock_detected = 0; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + ret = + cxd2880_tnrdmd_dvbt2_mon_sync_stat(tnr_dmd, &sync_state, + &ts_lock, + &unlock_detected); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (sync_state < 5) { + if (tnr_dmd->diver_mode == + CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = + cxd2880_tnrdmd_dvbt2_mon_sync_stat_sub + (tnr_dmd, &sync_state, &unlock_detected); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return ret; + } + + if (sync_state < 5) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + } else { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x80, data, + sizeof(data)) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + slvt_unfreeze_reg(tnr_dmd); + + version = ((data[0] & 0x03) << 2); + version |= ((data[1] & 0xC0) >> 6); + *ver = (enum cxd2880_dvbt2_version)version; + } + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_ofdm(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_dvbt2_ofdm *ofdm) +{ + if ((!tnr_dmd) || (!ofdm)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + { + u8 data[5]; + u8 sync_state = 0; + u8 ts_lock = 0; + u8 unlock_detected = 0; + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + ret = + cxd2880_tnrdmd_dvbt2_mon_sync_stat(tnr_dmd, &sync_state, + &ts_lock, + &unlock_detected); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (sync_state != 6) { + slvt_unfreeze_reg(tnr_dmd); + + ret = CXD2880_RESULT_ERROR_HW_STATE; + + if (tnr_dmd->diver_mode == + CXD2880_TNRDMD_DIVERMODE_MAIN) + ret = + cxd2880_tnrdmd_dvbt2_mon_ofdm( + tnr_dmd->diver_sub, ofdm); + + return ret; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x1D, data, + sizeof(data)) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + slvt_unfreeze_reg(tnr_dmd); + + ofdm->mixed = ((data[0] & 0x20) ? 1 : 0); + ofdm->is_miso = ((data[0] & 0x10) >> 4); + ofdm->mode = (enum cxd2880_dvbt2_mode)(data[0] & 0x07); + ofdm->gi = (enum cxd2880_dvbt2_guard)((data[1] & 0x70) >> 4); + ofdm->pp = (enum cxd2880_dvbt2_pp)(data[1] & 0x07); + ofdm->bw_ext = (data[2] & 0x10) >> 4; + ofdm->papr = (enum cxd2880_dvbt2_papr)(data[2] & 0x0F); + ofdm->num_symbols = (data[3] << 8) | data[4]; + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_data_plps(struct cxd2880_tnrdmd + *tnr_dmd, u8 *plp_ids, + u8 *num_plps) +{ + if ((!tnr_dmd) || (!num_plps)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + { + u8 l1_post_ok = 0; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x86, + &l1_post_ok, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (!(l1_post_ok & 0x01)) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xC1, num_plps, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (*num_plps == 0) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_OTHER; + } + + if (!plp_ids) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_OK; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xC2, plp_ids, + ((*num_plps > + 62) ? 62 : *num_plps)) != + CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (*num_plps > 62) { + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0C) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x10, + plp_ids + 62, + *num_plps - 62) != + CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + } + + slvt_unfreeze_reg(tnr_dmd); + } + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_active_plp(struct cxd2880_tnrdmd + *tnr_dmd, + enum + cxd2880_dvbt2_plp_btype + type, + struct cxd2880_dvbt2_plp + *plp_info) +{ + if ((!tnr_dmd) || (!plp_info)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + { + u8 data[20]; + u8 addr = 0; + u8 index = 0; + u8 l1_post_ok = 0; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x86, + &l1_post_ok, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (!l1_post_ok) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + + if (type == CXD2880_DVBT2_PLP_COMMON) + addr = 0xA9; + else + addr = 0x96; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, addr, data, + sizeof(data)) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + slvt_unfreeze_reg(tnr_dmd); + + if ((type == CXD2880_DVBT2_PLP_COMMON) && (data[13] == 0)) + return CXD2880_RESULT_ERROR_HW_STATE; + + plp_info->id = data[index++]; + plp_info->type = + (enum cxd2880_dvbt2_plp_type)(data[index++] & 0x07); + plp_info->payload = + (enum cxd2880_dvbt2_plp_payload)(data[index++] & 0x1F); + plp_info->ff = data[index++] & 0x01; + plp_info->first_rf_idx = data[index++] & 0x07; + plp_info->first_frm_idx = data[index++]; + plp_info->group_id = data[index++]; + plp_info->plp_cr = + (enum cxd2880_dvbt2_plp_code_rate)(data[index++] & 0x07); + plp_info->constell = + (enum cxd2880_dvbt2_plp_constell)(data[index++] & 0x07); + plp_info->rot = data[index++] & 0x01; + plp_info->fec = + (enum cxd2880_dvbt2_plp_fec)(data[index++] & 0x03); + plp_info->num_blocks_max = (u16)((data[index++] & 0x03)) << 8; + plp_info->num_blocks_max |= data[index++]; + plp_info->frm_int = data[index++]; + plp_info->til_len = data[index++]; + plp_info->til_type = data[index++] & 0x01; + + plp_info->in_band_a_flag = data[index++] & 0x01; + plp_info->rsvd = data[index++] << 8; + plp_info->rsvd |= data[index++]; + + plp_info->in_band_b_flag = + (u8)((plp_info->rsvd & 0x8000) >> 15); + plp_info->plp_mode = + (enum cxd2880_dvbt2_plp_mode)((plp_info->rsvd & 0x000C) >> + 2); + plp_info->static_flag = (u8)((plp_info->rsvd & 0x0002) >> 1); + plp_info->static_padding_flag = (u8)(plp_info->rsvd & 0x0001); + plp_info->rsvd = (u16)((plp_info->rsvd & 0x7FF0) >> 4); + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_data_plp_error(struct cxd2880_tnrdmd + *tnr_dmd, + u8 *plp_error) +{ + if ((!tnr_dmd) || (!plp_error)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + { + u8 data; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x86, &data, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if ((data & 0x01) == 0x00) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xC0, &data, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + slvt_unfreeze_reg(tnr_dmd); + + *plp_error = data & 0x01; + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_l1_change(struct cxd2880_tnrdmd + *tnr_dmd, u8 *l1_change) +{ + if ((!tnr_dmd) || (!l1_change)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + { + u8 data; + u8 sync_state = 0; + u8 ts_lock = 0; + u8 unlock_detected = 0; + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + ret = + cxd2880_tnrdmd_dvbt2_mon_sync_stat(tnr_dmd, &sync_state, + &ts_lock, + &unlock_detected); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (sync_state < 5) { + if (tnr_dmd->diver_mode == + CXD2880_TNRDMD_DIVERMODE_MAIN) { + ret = + cxd2880_tnrdmd_dvbt2_mon_sync_stat_sub + (tnr_dmd, &sync_state, &unlock_detected); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return ret; + } + + if (sync_state < 5) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + } else { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x5F, &data, + sizeof(data)) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + *l1_change = data & 0x01; + if (*l1_change) { + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x22) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x16, + 0x01) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + } + slvt_unfreeze_reg(tnr_dmd); + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_l1_post(struct cxd2880_tnrdmd + *tnr_dmd, + struct cxd2880_dvbt2_l1post + *l1_post) +{ + if ((!tnr_dmd) || (!l1_post)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + { + u8 data[16]; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x86, data, + sizeof(data)) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (!(data[0] & 0x01)) + return CXD2880_RESULT_ERROR_HW_STATE; + + l1_post->sub_slices_per_frame = (data[1] & 0x7F) << 8; + l1_post->sub_slices_per_frame |= data[2]; + l1_post->num_plps = data[3]; + l1_post->num_aux = data[4] & 0x0F; + l1_post->aux_cfg_rfu = data[5]; + l1_post->rf_idx = data[6] & 0x07; + l1_post->freq = data[7] << 24; + l1_post->freq |= data[8] << 16; + l1_post->freq |= data[9] << 8; + l1_post->freq |= data[10]; + l1_post->fef_type = data[11] & 0x0F; + l1_post->fef_length = data[12] << 16; + l1_post->fef_length |= data[13] << 8; + l1_post->fef_length |= data[14]; + l1_post->fef_intvl = data[15]; + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_bbheader(struct cxd2880_tnrdmd + *tnr_dmd, + enum cxd2880_dvbt2_plp_btype + type, + struct cxd2880_dvbt2_bbheader + *bbheader) +{ + if ((!tnr_dmd) || (!bbheader)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + { + enum cxd2880_ret ret = CXD2880_RESULT_OK; + u8 sync_state = 0; + u8 ts_lock = 0; + u8 unlock_detected = 0; + + ret = + cxd2880_tnrdmd_dvbt2_mon_sync_stat(tnr_dmd, &sync_state, + &ts_lock, + &unlock_detected); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return ret; + } + + if (!ts_lock) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (type == CXD2880_DVBT2_PLP_COMMON) { + u8 l1_post_ok; + u8 data; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x86, + &l1_post_ok, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (!(l1_post_ok & 0x01)) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xB6, &data, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (data == 0) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + } + + { + u8 data[14]; + u8 addr = 0; + + if (type == CXD2880_DVBT2_PLP_COMMON) + addr = 0x51; + else + addr = 0x42; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, addr, data, + sizeof(data)) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + slvt_unfreeze_reg(tnr_dmd); + + bbheader->stream_input = + (enum cxd2880_dvbt2_stream)((data[0] >> 6) & 0x03); + bbheader->is_single_input_stream = (u8)((data[0] >> 5) & 0x01); + bbheader->is_constant_coding_modulation = + (u8)((data[0] >> 4) & 0x01); + bbheader->issy_indicator = (u8)((data[0] >> 3) & 0x01); + bbheader->null_packet_deletion = (u8)((data[0] >> 2) & 0x01); + bbheader->ext = (u8)(data[0] & 0x03); + + bbheader->input_stream_identifier = data[1]; + bbheader->plp_mode = + (data[3] & 0x01) ? CXD2880_DVBT2_PLP_MODE_HEM : + CXD2880_DVBT2_PLP_MODE_NM; + bbheader->data_field_length = (u16)((data[4] << 8) | data[5]); + + if (bbheader->plp_mode == CXD2880_DVBT2_PLP_MODE_NM) { + bbheader->user_packet_length = + (u16)((data[6] << 8) | data[7]); + bbheader->sync_byte = data[8]; + bbheader->issy = 0; + } else { + bbheader->user_packet_length = 0; + bbheader->sync_byte = 0; + bbheader->issy = + (u32)((data[11] << 16) | (data[12] << 8) | + data[13]); + } + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_in_bandb_ts_rate(struct cxd2880_tnrdmd + *tnr_dmd, + enum + cxd2880_dvbt2_plp_btype + type, + u32 *ts_rate_bps) +{ + if ((!tnr_dmd) || (!ts_rate_bps)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + { + enum cxd2880_ret ret = CXD2880_RESULT_OK; + u8 sync_state = 0; + u8 ts_lock = 0; + u8 unlock_detected = 0; + + ret = + cxd2880_tnrdmd_dvbt2_mon_sync_stat(tnr_dmd, &sync_state, + &ts_lock, + &unlock_detected); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return ret; + } + + if (!ts_lock) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + { + u8 l1_post_ok = 0; + u8 addr = 0; + u8 data = 0; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x86, + &l1_post_ok, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (!(l1_post_ok & 0x01)) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + + if (type == CXD2880_DVBT2_PLP_COMMON) + addr = 0xBA; + else + addr = 0xA7; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, addr, &data, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if ((data & 0x80) == 0x00) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x25) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + { + u8 data[4]; + u8 addr = 0; + + if (type == CXD2880_DVBT2_PLP_COMMON) + addr = 0xA6; + else + addr = 0xAA; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, addr, &data[0], + 4) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + *ts_rate_bps = + (u32)(((data[0] & 0x07) << 24) | (data[1] << 16) | + (data[2] << 8) | data[3]); + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_spectrum_sense(struct cxd2880_tnrdmd + *tnr_dmd, + enum + cxd2880_tnrdmd_spectrum_sense + *sense) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + u8 sync_state = 0; + u8 ts_lock = 0; + u8 early_unlock = 0; + + if ((!tnr_dmd) || (!sense)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + ret = + cxd2880_tnrdmd_dvbt2_mon_sync_stat(tnr_dmd, &sync_state, &ts_lock, + &early_unlock); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return ret; + } + + if (sync_state != 6) { + slvt_unfreeze_reg(tnr_dmd); + + ret = CXD2880_RESULT_ERROR_HW_STATE; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) + ret = + cxd2880_tnrdmd_dvbt2_mon_spectrum_sense( + tnr_dmd->diver_sub, sense); + + return ret; + } + + { + u8 data = 0; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x2F, &data, + sizeof(data)) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + slvt_unfreeze_reg(tnr_dmd); + + *sense = + (data & 0x01) ? CXD2880_TNRDMD_SPECTRUM_INV : + CXD2880_TNRDMD_SPECTRUM_NORMAL; + } + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret dvbt2_read_snr_reg(struct cxd2880_tnrdmd *tnr_dmd, + u16 *reg_value) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!reg_value)) + return CXD2880_RESULT_ERROR_ARG; + + { + u8 sync_state = 0; + u8 ts_lock = 0; + u8 unlock_detected = 0; + u8 data[2]; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + ret = + cxd2880_tnrdmd_dvbt2_mon_sync_stat(tnr_dmd, &sync_state, + &ts_lock, + &unlock_detected); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (sync_state != 6) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x13, data, + sizeof(data)) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + slvt_unfreeze_reg(tnr_dmd); + + *reg_value = (data[0] << 8) | data[1]; + } + + return ret; +} + +static enum cxd2880_ret dvbt2_calc_snr(struct cxd2880_tnrdmd *tnr_dmd, + u32 reg_value, int *snr) +{ + if ((!tnr_dmd) || (!snr)) + return CXD2880_RESULT_ERROR_ARG; + + if (reg_value == 0) + return CXD2880_RESULT_ERROR_HW_STATE; + + if (reg_value > 10876) + reg_value = 10876; + + *snr = + 10 * 10 * ((int)cxd2880_math_log10(reg_value) - + (int)cxd2880_math_log10(12600 - reg_value)); + *snr += 32000; + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_snr(struct cxd2880_tnrdmd *tnr_dmd, + int *snr) +{ + u16 reg_value = 0; + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!snr)) + return CXD2880_RESULT_ERROR_ARG; + + *snr = -1000 * 1000; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SINGLE) { + ret = dvbt2_read_snr_reg(tnr_dmd, ®_value); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = dvbt2_calc_snr(tnr_dmd, reg_value, snr); + if (ret != CXD2880_RESULT_OK) + return ret; + } else { + int snr_main = 0; + int snr_sub = 0; + + ret = + cxd2880_tnrdmd_dvbt2_mon_snr_diver(tnr_dmd, snr, &snr_main, + &snr_sub); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_snr_diver(struct cxd2880_tnrdmd + *tnr_dmd, int *snr, + int *snr_main, int *snr_sub) +{ + u16 reg_value = 0; + u32 reg_value_sum = 0; + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!snr) || (!snr_main) || (!snr_sub)) + return CXD2880_RESULT_ERROR_ARG; + + *snr = -1000 * 1000; + *snr_main = -1000 * 1000; + *snr_sub = -1000 * 1000; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = dvbt2_read_snr_reg(tnr_dmd, ®_value); + if (ret == CXD2880_RESULT_OK) { + ret = dvbt2_calc_snr(tnr_dmd, reg_value, snr_main); + if (ret != CXD2880_RESULT_OK) + reg_value = 0; + } else if (ret == CXD2880_RESULT_ERROR_HW_STATE) { + reg_value = 0; + } else { + return ret; + } + + reg_value_sum += reg_value; + + ret = dvbt2_read_snr_reg(tnr_dmd->diver_sub, ®_value); + if (ret == CXD2880_RESULT_OK) { + ret = dvbt2_calc_snr(tnr_dmd->diver_sub, reg_value, snr_sub); + if (ret != CXD2880_RESULT_OK) + reg_value = 0; + } else if (ret == CXD2880_RESULT_ERROR_HW_STATE) { + reg_value = 0; + } else { + return ret; + } + + reg_value_sum += reg_value; + + ret = dvbt2_calc_snr(tnr_dmd, reg_value_sum, snr); + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_pre_ldpcber(struct cxd2880_tnrdmd + *tnr_dmd, u32 *ber) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + u32 bit_error = 0; + u32 period_exp = 0; + u32 n_ldpc = 0; + + if ((!tnr_dmd) || (!ber)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + { + u8 data[5]; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x3C, data, + sizeof(data)) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (!(data[0] & 0x01)) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + + bit_error = + ((data[1] & 0x0F) << 24) | (data[2] << 16) | (data[3] << 8) + | data[4]; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xA0, data, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (((enum cxd2880_dvbt2_plp_fec)(data[0] & 0x03)) == + CXD2880_DVBT2_FEC_LDPC_16K) + n_ldpc = 16200; + else + n_ldpc = 64800; + + slvt_unfreeze_reg(tnr_dmd); + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x20) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x6F, data, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + period_exp = data[0] & 0x0F; + } + + if (bit_error > ((1U << period_exp) * n_ldpc)) + return CXD2880_RESULT_ERROR_HW_STATE; + + { + u32 div = 0; + u32 Q = 0; + u32 R = 0; + + if (period_exp >= 4) { + div = (1U << (period_exp - 4)) * (n_ldpc / 200); + + Q = (bit_error * 5) / div; + R = (bit_error * 5) % div; + + R *= 625; + Q = Q * 625 + R / div; + R = R % div; + } else { + div = (1U << period_exp) * (n_ldpc / 200); + + Q = (bit_error * 10) / div; + R = (bit_error * 10) % div; + + R *= 5000; + Q = Q * 5000 + R / div; + R = R % div; + } + + if (div / 2 <= R) + *ber = Q + 1; + else + *ber = Q; + } + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_post_bchfer(struct cxd2880_tnrdmd + *tnr_dmd, u32 *fer) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + u32 fec_error = 0; + u32 period = 0; + + if ((!tnr_dmd) || (!fer)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + { + u8 data[2]; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x1B, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (!(data[0] & 0x80)) + return CXD2880_RESULT_ERROR_HW_STATE; + + fec_error = ((data[0] & 0x7F) << 8) | (data[1]); + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x20) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x72, data, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + period = (1 << (data[0] & 0x0F)); + } + + if ((period == 0) || (fec_error > period)) + return CXD2880_RESULT_ERROR_HW_STATE; + + { + u32 div = 0; + u32 Q = 0; + u32 R = 0; + + div = period; + + Q = (fec_error * 1000) / div; + R = (fec_error * 1000) % div; + + R *= 1000; + Q = Q * 1000 + R / div; + R = R % div; + + if ((div != 1) && (div / 2 <= R)) + *fer = Q + 1; + else + *fer = Q; + } + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_pre_bchber(struct cxd2880_tnrdmd + *tnr_dmd, u32 *ber) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + u32 bit_error = 0; + u32 period_exp = 0; + u32 n_bch = 0; + + if ((!tnr_dmd) || (!ber)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + { + u8 data[3]; + enum cxd2880_dvbt2_plp_fec plp_fec_type = + CXD2880_DVBT2_FEC_LDPC_16K; + enum cxd2880_dvbt2_plp_code_rate plp_cr = CXD2880_DVBT2_R1_2; + + static const u16 n_bch_bits_lookup[2][8] = { + {7200, 9720, 10800, 11880, 12600, 13320, 5400, 6480}, + {32400, 38880, 43200, 48600, 51840, 54000, 21600, 25920} + }; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x15, data, + 3) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (!(data[0] & 0x40)) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + + bit_error = ((data[0] & 0x3F) << 16) | (data[1] << 8) | data[2]; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x9D, data, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + plp_cr = (enum cxd2880_dvbt2_plp_code_rate)(data[0] & 0x07); + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xA0, data, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + plp_fec_type = (enum cxd2880_dvbt2_plp_fec)(data[0] & 0x03); + + slvt_unfreeze_reg(tnr_dmd); + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x20) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x72, data, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + period_exp = data[0] & 0x0F; + + if ((plp_fec_type > CXD2880_DVBT2_FEC_LDPC_64K) || + (plp_cr > CXD2880_DVBT2_R2_5)) + return CXD2880_RESULT_ERROR_HW_STATE; + + n_bch = n_bch_bits_lookup[plp_fec_type][plp_cr]; + } + + if (bit_error > ((1U << period_exp) * n_bch)) + return CXD2880_RESULT_ERROR_HW_STATE; + + { + u32 div = 0; + u32 Q = 0; + u32 R = 0; + + if (period_exp >= 6) { + div = (1U << (period_exp - 6)) * (n_bch / 40); + + Q = (bit_error * 625) / div; + R = (bit_error * 625) % div; + + R *= 625; + Q = Q * 625 + R / div; + R = R % div; + } else { + div = (1U << period_exp) * (n_bch / 40); + + Q = (bit_error * 1000) / div; + R = (bit_error * 1000) % div; + + R *= 25000; + Q = Q * 25000 + R / div; + R = R % div; + } + + if (div / 2 <= R) + *ber = Q + 1; + else + *ber = Q; + } + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_packet_error_number(struct + cxd2880_tnrdmd + *tnr_dmd, + u32 *pen) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + u8 data[3]; + + if ((!tnr_dmd) || (!pen)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x39, data, + sizeof(data)) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (!(data[0] & 0x01)) + return CXD2880_RESULT_ERROR_HW_STATE; + + *pen = ((data[1] << 8) | data[2]); + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_sampling_offset(struct cxd2880_tnrdmd + *tnr_dmd, int *ppm) +{ + if ((!tnr_dmd) || (!ppm)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + { + u8 ctl_val_reg[5]; + u8 nominal_rate_reg[5]; + u32 trl_ctl_val = 0; + u32 trcg_nominal_rate = 0; + int num; + int den; + enum cxd2880_ret ret = CXD2880_RESULT_OK; + u8 sync_state = 0; + u8 ts_lock = 0; + u8 unlock_detected = 0; + s8 diff_upper = 0; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + ret = + cxd2880_tnrdmd_dvbt2_mon_sync_stat(tnr_dmd, &sync_state, + &ts_lock, + &unlock_detected); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (sync_state != 6) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x34, + ctl_val_reg, + sizeof(ctl_val_reg)) != + CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x04) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x10, + nominal_rate_reg, + sizeof(nominal_rate_reg)) != + CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + slvt_unfreeze_reg(tnr_dmd); + + diff_upper = + (ctl_val_reg[0] & 0x7F) - (nominal_rate_reg[0] & 0x7F); + + if ((diff_upper < -1) || (diff_upper > 1)) + return CXD2880_RESULT_ERROR_HW_STATE; + + trl_ctl_val = ctl_val_reg[1] << 24; + trl_ctl_val |= ctl_val_reg[2] << 16; + trl_ctl_val |= ctl_val_reg[3] << 8; + trl_ctl_val |= ctl_val_reg[4]; + + trcg_nominal_rate = nominal_rate_reg[1] << 24; + trcg_nominal_rate |= nominal_rate_reg[2] << 16; + trcg_nominal_rate |= nominal_rate_reg[3] << 8; + trcg_nominal_rate |= nominal_rate_reg[4]; + + trl_ctl_val >>= 1; + trcg_nominal_rate >>= 1; + + if (diff_upper == 1) + num = + (int)((trl_ctl_val + 0x80000000u) - + trcg_nominal_rate); + else if (diff_upper == -1) + num = + -(int)((trcg_nominal_rate + 0x80000000u) - + trl_ctl_val); + else + num = (int)(trl_ctl_val - trcg_nominal_rate); + + den = (nominal_rate_reg[0] & 0x7F) << 24; + den |= nominal_rate_reg[1] << 16; + den |= nominal_rate_reg[2] << 8; + den |= nominal_rate_reg[3]; + den = (den + (390625 / 2)) / 390625; + + den >>= 1; + + if (num >= 0) + *ppm = (num + (den / 2)) / den; + else + *ppm = (num - (den / 2)) / den; + } + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_sampling_offset_sub(struct + cxd2880_tnrdmd + *tnr_dmd, + int *ppm) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!ppm)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return CXD2880_RESULT_ERROR_ARG; + + ret = cxd2880_tnrdmd_dvbt2_mon_sampling_offset(tnr_dmd->diver_sub, ppm); + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_quality(struct cxd2880_tnrdmd + *tnr_dmd, u8 *quality) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + int snr = 0; + int snr_rel = 0; + u32 ber = 0; + u32 ber_sqi = 0; + enum cxd2880_dvbt2_plp_constell qam; + enum cxd2880_dvbt2_plp_code_rate code_rate; + + static const int snr_nordig_p1_db_1000[4][8] = { + {3500, 4700, 5600, 6600, 7200, 7700, 1300, 2200}, + {8700, 10100, 11400, 12500, 13300, 13800, 6000, 7200}, + {13000, 14800, 16200, 17700, 18700, 19400, 9800, 11100}, + {17000, 19400, 20800, 22900, 24300, 25100, 13200, 14800}, + }; + + if ((!tnr_dmd) || (!quality)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = cxd2880_tnrdmd_dvbt2_mon_pre_bchber(tnr_dmd, &ber); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = cxd2880_tnrdmd_dvbt2_mon_snr(tnr_dmd, &snr); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = + cxd2880_tnrdmd_dvbt2_mon_qam(tnr_dmd, CXD2880_DVBT2_PLP_DATA, &qam); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = + cxd2880_tnrdmd_dvbt2_mon_code_rate(tnr_dmd, CXD2880_DVBT2_PLP_DATA, + &code_rate); + if (ret != CXD2880_RESULT_OK) + return ret; + + if ((code_rate > CXD2880_DVBT2_R2_5) || (qam > CXD2880_DVBT2_QAM256)) + return CXD2880_RESULT_ERROR_OTHER; + + if (ber > 100000) + ber_sqi = 0; + else if (ber >= 100) + ber_sqi = 6667; + else + ber_sqi = 16667; + + snr_rel = snr - snr_nordig_p1_db_1000[qam][code_rate]; + + if (snr_rel < -3000) { + *quality = 0; + } else if (snr_rel <= 3000) { + u32 temp_sqi = + (((snr_rel + 3000) * ber_sqi) + 500000) / 1000000; + *quality = (temp_sqi > 100) ? 100 : (u8)temp_sqi; + } else { + *quality = 100; + } + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_ts_rate(struct cxd2880_tnrdmd + *tnr_dmd, u32 *ts_rate_kbps) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + u32 rd_smooth_dp = 0; + u32 ep_ck_nume = 0; + u32 ep_ck_deno = 0; + u8 issy_on_data = 0; + + if ((!tnr_dmd) || (!ts_rate_kbps)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + { + u8 data[12]; + u8 sync_state = 0; + u8 ts_lock = 0; + u8 unlock_detected = 0; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + ret = + cxd2880_tnrdmd_dvbt2_mon_sync_stat(tnr_dmd, &sync_state, + &ts_lock, + &unlock_detected); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (!ts_lock) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x23, data, + 12) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + rd_smooth_dp = (u32)((data[0] & 0x1F) << 24); + rd_smooth_dp |= (u32)(data[1] << 16); + rd_smooth_dp |= (u32)(data[2] << 8); + rd_smooth_dp |= (u32)data[3]; + + if (rd_smooth_dp < 214958) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + + ep_ck_nume = (u32)((data[4] & 0x3F) << 24); + ep_ck_nume |= (u32)(data[5] << 16); + ep_ck_nume |= (u32)(data[6] << 8); + ep_ck_nume |= (u32)data[7]; + + ep_ck_deno = (u32)((data[8] & 0x3F) << 24); + ep_ck_deno |= (u32)(data[9] << 16); + ep_ck_deno |= (u32)(data[10] << 8); + ep_ck_deno |= (u32)data[11]; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x41, data, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + issy_on_data = data[0] & 0x01; + + slvt_unfreeze_reg(tnr_dmd); + } + + if (issy_on_data) { + if ((ep_ck_deno == 0) || (ep_ck_nume == 0) || + (ep_ck_deno >= ep_ck_nume)) + return CXD2880_RESULT_ERROR_HW_STATE; + } + + { + u32 ick_x100; + u32 div = 0; + u32 Q = 0; + u32 R = 0; + + switch (tnr_dmd->clk_mode) { + case CXD2880_TNRDMD_CLOCKMODE_A: + ick_x100 = 8228; + break; + case CXD2880_TNRDMD_CLOCKMODE_B: + ick_x100 = 9330; + break; + case CXD2880_TNRDMD_CLOCKMODE_C: + ick_x100 = 9600; + break; + default: + return CXD2880_RESULT_ERROR_SW_STATE; + } + + div = rd_smooth_dp; + + Q = ick_x100 * 262144U / div; + R = ick_x100 * 262144U % div; + + R *= 5U; + Q = Q * 5 + R / div; + R = R % div; + + R *= 2U; + Q = Q * 2 + R / div; + R = R % div; + + if (div / 2 <= R) + *ts_rate_kbps = Q + 1; + else + *ts_rate_kbps = Q; + } + + if (issy_on_data) { + u32 diff = ep_ck_nume - ep_ck_deno; + + while (diff > 0x7FFF) { + diff >>= 1; + ep_ck_nume >>= 1; + } + + *ts_rate_kbps -= + (*ts_rate_kbps * diff + ep_ck_nume / 2) / ep_ck_nume; + } + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_per(struct cxd2880_tnrdmd *tnr_dmd, + u32 *per) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + u32 packet_error = 0; + u32 period = 0; + + if (!tnr_dmd || !per) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + { + u8 rdata[3]; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x18, rdata, + 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if ((rdata[0] & 0x01) == 0) + return CXD2880_RESULT_ERROR_HW_STATE; + + packet_error = (rdata[1] << 8) | rdata[2]; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x24) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xDC, rdata, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + period = 1U << (rdata[0] & 0x0F); + } + + if ((period == 0) || (packet_error > period)) + return CXD2880_RESULT_ERROR_HW_STATE; + + { + u32 div = 0; + u32 Q = 0; + u32 R = 0; + + div = period; + + Q = (packet_error * 1000) / div; + R = (packet_error * 1000) % div; + + R *= 1000; + Q = Q * 1000 + R / div; + R = R % div; + + if ((div != 1) && (div / 2 <= R)) + *per = Q + 1; + else + *per = Q; + } + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_qam(struct cxd2880_tnrdmd *tnr_dmd, + enum cxd2880_dvbt2_plp_btype type, + enum cxd2880_dvbt2_plp_constell + *qam) +{ + u8 data; + u8 l1_post_ok = 0; + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!qam)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x86, &l1_post_ok, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (!(l1_post_ok & 0x01)) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + + if (type == CXD2880_DVBT2_PLP_COMMON) { + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xB6, &data, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (data == 0) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xB1, &data, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + } else { + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x9E, &data, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + } + + slvt_unfreeze_reg(tnr_dmd); + + *qam = (enum cxd2880_dvbt2_plp_constell)(data & 0x07); + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_code_rate(struct cxd2880_tnrdmd + *tnr_dmd, + enum cxd2880_dvbt2_plp_btype + type, + enum + cxd2880_dvbt2_plp_code_rate + *code_rate) +{ + u8 data; + u8 l1_post_ok = 0; + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!code_rate)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x86, &l1_post_ok, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (!(l1_post_ok & 0x01)) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + + if (type == CXD2880_DVBT2_PLP_COMMON) { + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xB6, &data, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (data == 0) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xB0, &data, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + } else { + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x9D, &data, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + } + + slvt_unfreeze_reg(tnr_dmd); + + *code_rate = (enum cxd2880_dvbt2_plp_code_rate)(data & 0x07); + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_profile(struct cxd2880_tnrdmd + *tnr_dmd, + enum cxd2880_dvbt2_profile + *profile) +{ + if ((!tnr_dmd) || (!profile)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0B) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + { + u8 data; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x22, &data, + sizeof(data)) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (data & 0x02) { + if (data & 0x01) + *profile = CXD2880_DVBT2_PROFILE_LITE; + else + *profile = CXD2880_DVBT2_PROFILE_BASE; + } else { + enum cxd2880_ret ret = CXD2880_RESULT_ERROR_HW_STATE; + + if (tnr_dmd->diver_mode == + CXD2880_TNRDMD_DIVERMODE_MAIN) + ret = + cxd2880_tnrdmd_dvbt2_mon_profile( + tnr_dmd->diver_sub, profile); + + return ret; + } + } + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret dvbt2_calc_sdi(struct cxd2880_tnrdmd *tnr_dmd, + int rf_lvl, u8 *ssi) +{ + enum cxd2880_dvbt2_plp_constell qam; + enum cxd2880_dvbt2_plp_code_rate code_rate; + int prel; + int temp_ssi = 0; + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + static const int ref_dbm_1000[4][8] = { + {-96000, -95000, -94000, -93000, -92000, -92000, -98000, + -97000}, + {-91000, -89000, -88000, -87000, -86000, -86000, -93000, + -92000}, + {-86000, -85000, -83000, -82000, -81000, -80000, -89000, + -88000}, + {-82000, -80000, -78000, -76000, -75000, -74000, -86000, + -84000}, + }; + + if ((!tnr_dmd) || (!ssi)) + return CXD2880_RESULT_ERROR_ARG; + + ret = + cxd2880_tnrdmd_dvbt2_mon_qam(tnr_dmd, CXD2880_DVBT2_PLP_DATA, &qam); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = + cxd2880_tnrdmd_dvbt2_mon_code_rate(tnr_dmd, CXD2880_DVBT2_PLP_DATA, + &code_rate); + if (ret != CXD2880_RESULT_OK) + return ret; + + if ((code_rate > CXD2880_DVBT2_R2_5) || (qam > CXD2880_DVBT2_QAM256)) + return CXD2880_RESULT_ERROR_OTHER; + + prel = rf_lvl - ref_dbm_1000[qam][code_rate]; + + if (prel < -15000) + temp_ssi = 0; + else if (prel < 0) + temp_ssi = ((2 * (prel + 15000)) + 1500) / 3000; + else if (prel < 20000) + temp_ssi = (((4 * prel) + 500) / 1000) + 10; + else if (prel < 35000) + temp_ssi = (((2 * (prel - 20000)) + 1500) / 3000) + 90; + else + temp_ssi = 100; + + *ssi = (temp_ssi > 100) ? 100 : (u8)temp_ssi; + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_ssi(struct cxd2880_tnrdmd *tnr_dmd, + u8 *ssi) +{ + int rf_lvl = 0; + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!ssi)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = cxd2880_tnrdmd_mon_rf_lvl(tnr_dmd, &rf_lvl); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = dvbt2_calc_sdi(tnr_dmd, rf_lvl, ssi); + if (ret != CXD2880_RESULT_OK) + return ret; + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_ssi_sub(struct cxd2880_tnrdmd + *tnr_dmd, u8 *ssi) +{ + int rf_lvl = 0; + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!ssi)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = cxd2880_tnrdmd_mon_rf_lvl(tnr_dmd->diver_sub, &rf_lvl); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = dvbt2_calc_sdi(tnr_dmd, rf_lvl, ssi); + if (ret != CXD2880_RESULT_OK) + return ret; + + return ret; +} diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2_mon.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2_mon.h new file mode 100644 index 0000000000000000000000000000000000000000..784ad2844d1b06af8594c25f1f6f6b67ded9dc71 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2_mon.h @@ -0,0 +1,170 @@ +/* + * cxd2880_tnrdmd_dvbt2_mon.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * DVB-T2 monitor interface + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef CXD2880_TNRDMD_DVBT2_MON_H +#define CXD2880_TNRDMD_DVBT2_MON_H + +#include "cxd2880_tnrdmd.h" +#include "cxd2880_dvbt2.h" + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_sync_stat(struct cxd2880_tnrdmd + *tnr_dmd, u8 *sync_stat, + u8 *ts_lock_stat, + u8 *unlock_detected); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_sync_stat_sub(struct cxd2880_tnrdmd + *tnr_dmd, + u8 *sync_stat, + u8 *unlock_detected); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_carrier_offset(struct cxd2880_tnrdmd + *tnr_dmd, int *offset); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_carrier_offset_sub(struct + cxd2880_tnrdmd + *tnr_dmd, + int *offset); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_l1_pre(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_dvbt2_l1pre + *l1_pre); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_version(struct cxd2880_tnrdmd + *tnr_dmd, + enum cxd2880_dvbt2_version + *ver); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_ofdm(struct cxd2880_tnrdmd *tnr_dmd, + struct cxd2880_dvbt2_ofdm *ofdm); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_data_plps(struct cxd2880_tnrdmd + *tnr_dmd, u8 *plp_ids, + u8 *num_plps); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_active_plp(struct cxd2880_tnrdmd + *tnr_dmd, + enum + cxd2880_dvbt2_plp_btype + type, + struct cxd2880_dvbt2_plp + *plp_info); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_data_plp_error(struct cxd2880_tnrdmd + *tnr_dmd, + u8 *plp_error); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_l1_change(struct cxd2880_tnrdmd + *tnr_dmd, u8 *l1_change); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_l1_post(struct cxd2880_tnrdmd + *tnr_dmd, + struct cxd2880_dvbt2_l1post + *l1_post); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_bbheader(struct cxd2880_tnrdmd + *tnr_dmd, + enum cxd2880_dvbt2_plp_btype + type, + struct cxd2880_dvbt2_bbheader + *bbheader); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_in_bandb_ts_rate(struct cxd2880_tnrdmd + *tnr_dmd, + enum + cxd2880_dvbt2_plp_btype + type, + u32 *ts_rate_bps); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_spectrum_sense(struct cxd2880_tnrdmd + *tnr_dmd, + enum + cxd2880_tnrdmd_spectrum_sense + *sense); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_snr(struct cxd2880_tnrdmd *tnr_dmd, + int *snr); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_snr_diver(struct cxd2880_tnrdmd + *tnr_dmd, int *snr, + int *snr_main, + int *snr_sub); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_pre_ldpcber(struct cxd2880_tnrdmd + *tnr_dmd, u32 *ber); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_post_bchfer(struct cxd2880_tnrdmd + *tnr_dmd, u32 *fer); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_pre_bchber(struct cxd2880_tnrdmd + *tnr_dmd, u32 *ber); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_packet_error_number(struct + cxd2880_tnrdmd + *tnr_dmd, + u32 *pen); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_sampling_offset(struct cxd2880_tnrdmd + *tnr_dmd, int *ppm); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_sampling_offset_sub(struct + cxd2880_tnrdmd + *tnr_dmd, + int *ppm); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_ts_rate(struct cxd2880_tnrdmd + *tnr_dmd, u32 *ts_rate_kbps); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_quality(struct cxd2880_tnrdmd + *tnr_dmd, u8 *quality); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_per(struct cxd2880_tnrdmd *tnr_dmd, + u32 *per); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_qam(struct cxd2880_tnrdmd *tnr_dmd, + enum cxd2880_dvbt2_plp_btype type, + enum cxd2880_dvbt2_plp_constell + *qam); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_code_rate(struct cxd2880_tnrdmd + *tnr_dmd, + enum cxd2880_dvbt2_plp_btype + type, + enum + cxd2880_dvbt2_plp_code_rate + *code_rate); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_profile(struct cxd2880_tnrdmd + *tnr_dmd, + enum cxd2880_dvbt2_profile + *profile); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_ssi(struct cxd2880_tnrdmd *tnr_dmd, + u8 *ssi); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt2_mon_ssi_sub(struct cxd2880_tnrdmd + *tnr_dmd, u8 *ssi); + +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.c new file mode 100644 index 0000000000000000000000000000000000000000..d890081b6424b51ddce4fc770a8ed94af14e153e --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.c @@ -0,0 +1,1190 @@ +/* + * cxd2880_tnrdmd_dvbt_mon.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * DVB-T monitor functions + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include "cxd2880_tnrdmd_mon.h" +#include "cxd2880_tnrdmd_dvbt.h" +#include "cxd2880_tnrdmd_dvbt_mon.h" +#include "cxd2880_math.h" + +static enum cxd2880_ret is_tps_locked(struct cxd2880_tnrdmd *tnr_dmd); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_sync_stat(struct cxd2880_tnrdmd + *tnr_dmd, u8 *sync_stat, + u8 *ts_lock_stat, + u8 *unlock_detected) +{ + u8 rdata = 0x00; + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!sync_stat) || (!ts_lock_stat) || (!unlock_detected)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0D) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x10, &rdata, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + *unlock_detected = (u8)((rdata & 0x10) ? 1 : 0); + *sync_stat = (u8)(rdata & 0x07); + *ts_lock_stat = (u8)((rdata & 0x20) ? 1 : 0); + + if (*sync_stat == 0x07) + return CXD2880_RESULT_ERROR_HW_STATE; + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_sync_stat_sub(struct cxd2880_tnrdmd + *tnr_dmd, u8 *sync_stat, + u8 *unlock_detected) +{ + u8 ts_lock_stat = 0; + + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!sync_stat) || (!unlock_detected)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return CXD2880_RESULT_ERROR_ARG; + + ret = + cxd2880_tnrdmd_dvbt_mon_sync_stat(tnr_dmd->diver_sub, sync_stat, + &ts_lock_stat, unlock_detected); + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_mode_guard(struct cxd2880_tnrdmd + *tnr_dmd, + enum cxd2880_dvbt_mode + *mode, + enum cxd2880_dvbt_guard + *guard) +{ + u8 rdata = 0x00; + + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!mode) || (!guard)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + ret = is_tps_locked(tnr_dmd); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) + ret = + cxd2880_tnrdmd_dvbt_mon_mode_guard( + tnr_dmd->diver_sub, mode, guard); + + return ret; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0D) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x1B, &rdata, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + slvt_unfreeze_reg(tnr_dmd); + + *mode = (enum cxd2880_dvbt_mode)((rdata >> 2) & 0x03); + *guard = (enum cxd2880_dvbt_guard)(rdata & 0x03); + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_carrier_offset(struct cxd2880_tnrdmd + *tnr_dmd, int *offset) +{ + u8 rdata[4]; + u32 ctl_val = 0; + + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!offset)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + ret = is_tps_locked(tnr_dmd); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return ret; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0D) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x1D, rdata, + 4) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + slvt_unfreeze_reg(tnr_dmd); + + ctl_val = + ((rdata[0] & 0x1F) << 24) | (rdata[1] << 16) | (rdata[2] << 8) | + (rdata[3]); + *offset = cxd2880_convert2s_complement(ctl_val, 29); + *offset = -1 * ((*offset) * (u8)tnr_dmd->bandwidth / 235); + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_carrier_offset_sub(struct + cxd2880_tnrdmd + *tnr_dmd, + int *offset) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!offset)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return CXD2880_RESULT_ERROR_ARG; + + ret = + cxd2880_tnrdmd_dvbt_mon_carrier_offset(tnr_dmd->diver_sub, offset); + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_pre_viterbiber(struct cxd2880_tnrdmd + *tnr_dmd, u32 *ber) +{ + u8 rdata[2]; + u32 bit_error = 0; + u32 period = 0; + + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!ber)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x10) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x39, rdata, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if ((rdata[0] & 0x01) == 0) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x22, rdata, + 2) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + bit_error = (rdata[0] << 8) | rdata[1]; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x6F, rdata, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + slvt_unfreeze_reg(tnr_dmd); + + period = ((rdata[0] & 0x07) == 0) ? 256 : (0x1000 << (rdata[0] & 0x07)); + + if ((period == 0) || (bit_error > period)) + return CXD2880_RESULT_ERROR_HW_STATE; + + { + u32 div = 0; + u32 Q = 0; + u32 R = 0; + + div = period / 128; + + Q = (bit_error * 3125) / div; + R = (bit_error * 3125) % div; + + R *= 25; + Q = Q * 25 + R / div; + R = R % div; + + if (div / 2 <= R) + *ber = Q + 1; + else + *ber = Q; + } + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_pre_rsber(struct cxd2880_tnrdmd + *tnr_dmd, u32 *ber) +{ + u8 rdata[3]; + u32 bit_error = 0; + u32 period_exp = 0; + + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!ber)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0D) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x15, rdata, + 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if ((rdata[0] & 0x40) == 0) + return CXD2880_RESULT_ERROR_HW_STATE; + + bit_error = ((rdata[0] & 0x3F) << 16) | (rdata[1] << 8) | rdata[2]; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x60, rdata, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + period_exp = (rdata[0] & 0x1F); + + if ((period_exp <= 11) && (bit_error > (1U << period_exp) * 204 * 8)) + return CXD2880_RESULT_ERROR_HW_STATE; + + { + u32 div = 0; + u32 Q = 0; + u32 R = 0; + + if (period_exp <= 8) + div = (1U << period_exp) * 51; + else + div = (1U << 8) * 51; + + Q = (bit_error * 250) / div; + R = (bit_error * 250) % div; + + R *= 1250; + Q = Q * 1250 + R / div; + R = R % div; + + if (period_exp > 8) { + *ber = + (Q + (1 << (period_exp - 9))) >> (period_exp - 8); + } else { + if (div / 2 <= R) + *ber = Q + 1; + else + *ber = Q; + } + } + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_tps_info(struct cxd2880_tnrdmd + *tnr_dmd, + struct cxd2880_dvbt_tpsinfo + *info) +{ + u8 rdata[7]; + u8 cell_id_ok = 0; + + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!info)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + ret = is_tps_locked(tnr_dmd); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) + ret = + cxd2880_tnrdmd_dvbt_mon_tps_info(tnr_dmd->diver_sub, + info); + + return ret; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0D) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x29, rdata, + 7) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x11) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0xD5, &cell_id_ok, + 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + slvt_unfreeze_reg(tnr_dmd); + + info->constellation = + (enum cxd2880_dvbt_constellation)((rdata[0] >> 6) & 0x03); + info->hierarchy = (enum cxd2880_dvbt_hierarchy)((rdata[0] >> 3) & 0x07); + info->rate_hp = (enum cxd2880_dvbt_coderate)(rdata[0] & 0x07); + info->rate_lp = (enum cxd2880_dvbt_coderate)((rdata[1] >> 5) & 0x07); + info->guard = (enum cxd2880_dvbt_guard)((rdata[1] >> 3) & 0x03); + info->mode = (enum cxd2880_dvbt_mode)((rdata[1] >> 1) & 0x03); + info->fnum = (rdata[2] >> 6) & 0x03; + info->length_indicator = rdata[2] & 0x3F; + info->cell_id = (u16)((rdata[3] << 8) | rdata[4]); + info->reserved_even = rdata[5] & 0x3F; + info->reserved_odd = rdata[6] & 0x3F; + + info->cell_id_ok = cell_id_ok & 0x01; + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_packet_error_number(struct + cxd2880_tnrdmd + *tnr_dmd, + u32 *pen) +{ + u8 rdata[3]; + + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!pen)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0D) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x26, rdata, + 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (!(rdata[0] & 0x01)) + return CXD2880_RESULT_ERROR_HW_STATE; + + *pen = (rdata[1] << 8) | rdata[2]; + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_spectrum_sense(struct cxd2880_tnrdmd + *tnr_dmd, + enum + cxd2880_tnrdmd_spectrum_sense + *sense) +{ + u8 data = 0; + + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!sense)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + ret = is_tps_locked(tnr_dmd); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN) + ret = + cxd2880_tnrdmd_dvbt_mon_spectrum_sense( + tnr_dmd->diver_sub, sense); + + return ret; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0D) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x1C, &data, + sizeof(data)) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + slvt_unfreeze_reg(tnr_dmd); + + *sense = + (data & 0x01) ? CXD2880_TNRDMD_SPECTRUM_INV : + CXD2880_TNRDMD_SPECTRUM_NORMAL; + + return ret; +} + +static enum cxd2880_ret dvbt_read_snr_reg(struct cxd2880_tnrdmd *tnr_dmd, + u16 *reg_value) +{ + u8 rdata[2]; + + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!reg_value)) + return CXD2880_RESULT_ERROR_ARG; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + ret = is_tps_locked(tnr_dmd); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return ret; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0D) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x13, rdata, + 2) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + slvt_unfreeze_reg(tnr_dmd); + + *reg_value = (rdata[0] << 8) | rdata[1]; + + return ret; +} + +static enum cxd2880_ret dvbt_calc_snr(struct cxd2880_tnrdmd *tnr_dmd, + u32 reg_value, int *snr) +{ + if ((!tnr_dmd) || (!snr)) + return CXD2880_RESULT_ERROR_ARG; + + if (reg_value == 0) + return CXD2880_RESULT_ERROR_HW_STATE; + + if (reg_value > 4996) + reg_value = 4996; + + *snr = + 10 * 10 * ((int)cxd2880_math_log10(reg_value) - + (int)cxd2880_math_log10(5350 - reg_value)); + *snr += 28500; + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_snr(struct cxd2880_tnrdmd *tnr_dmd, + int *snr) +{ + u16 reg_value = 0; + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!snr)) + return CXD2880_RESULT_ERROR_ARG; + + *snr = -1000 * 1000; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SINGLE) { + ret = dvbt_read_snr_reg(tnr_dmd, ®_value); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = dvbt_calc_snr(tnr_dmd, reg_value, snr); + if (ret != CXD2880_RESULT_OK) + return ret; + } else { + int snr_main = 0; + int snr_sub = 0; + + ret = + cxd2880_tnrdmd_dvbt_mon_snr_diver(tnr_dmd, snr, &snr_main, + &snr_sub); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_snr_diver(struct cxd2880_tnrdmd + *tnr_dmd, int *snr, + int *snr_main, int *snr_sub) +{ + u16 reg_value = 0; + u32 reg_value_sum = 0; + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!snr) || (!snr_main) || (!snr_sub)) + return CXD2880_RESULT_ERROR_ARG; + + *snr = -1000 * 1000; + *snr_main = -1000 * 1000; + *snr_sub = -1000 * 1000; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = dvbt_read_snr_reg(tnr_dmd, ®_value); + if (ret == CXD2880_RESULT_OK) { + ret = dvbt_calc_snr(tnr_dmd, reg_value, snr_main); + if (ret != CXD2880_RESULT_OK) + reg_value = 0; + } else if (ret == CXD2880_RESULT_ERROR_HW_STATE) { + reg_value = 0; + } else { + return ret; + } + + reg_value_sum += reg_value; + + ret = dvbt_read_snr_reg(tnr_dmd->diver_sub, ®_value); + if (ret == CXD2880_RESULT_OK) { + ret = dvbt_calc_snr(tnr_dmd->diver_sub, reg_value, snr_sub); + if (ret != CXD2880_RESULT_OK) + reg_value = 0; + } else if (ret == CXD2880_RESULT_ERROR_HW_STATE) { + reg_value = 0; + } else { + return ret; + } + + reg_value_sum += reg_value; + + ret = dvbt_calc_snr(tnr_dmd, reg_value_sum, snr); + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_sampling_offset(struct cxd2880_tnrdmd + *tnr_dmd, int *ppm) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!ppm)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT) + return CXD2880_RESULT_ERROR_SW_STATE; + + { + u8 ctl_val_reg[5]; + u8 nominal_rate_reg[5]; + u32 trl_ctl_val = 0; + u32 trcg_nominal_rate = 0; + int num; + int den; + s8 diff_upper = 0; + + if (slvt_freeze_reg(tnr_dmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + ret = is_tps_locked(tnr_dmd); + if (ret != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return ret; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0D) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x21, + ctl_val_reg, + sizeof(ctl_val_reg)) != + CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x04) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x60, + nominal_rate_reg, + sizeof(nominal_rate_reg)) != + CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnr_dmd); + return CXD2880_RESULT_ERROR_IO; + } + + slvt_unfreeze_reg(tnr_dmd); + + diff_upper = + (ctl_val_reg[0] & 0x7F) - (nominal_rate_reg[0] & 0x7F); + + if ((diff_upper < -1) || (diff_upper > 1)) + return CXD2880_RESULT_ERROR_HW_STATE; + + trl_ctl_val = ctl_val_reg[1] << 24; + trl_ctl_val |= ctl_val_reg[2] << 16; + trl_ctl_val |= ctl_val_reg[3] << 8; + trl_ctl_val |= ctl_val_reg[4]; + + trcg_nominal_rate = nominal_rate_reg[1] << 24; + trcg_nominal_rate |= nominal_rate_reg[2] << 16; + trcg_nominal_rate |= nominal_rate_reg[3] << 8; + trcg_nominal_rate |= nominal_rate_reg[4]; + + trl_ctl_val >>= 1; + trcg_nominal_rate >>= 1; + + if (diff_upper == 1) + num = + (int)((trl_ctl_val + 0x80000000u) - + trcg_nominal_rate); + else if (diff_upper == -1) + num = + -(int)((trcg_nominal_rate + 0x80000000u) - + trl_ctl_val); + else + num = (int)(trl_ctl_val - trcg_nominal_rate); + + den = (nominal_rate_reg[0] & 0x7F) << 24; + den |= nominal_rate_reg[1] << 16; + den |= nominal_rate_reg[2] << 8; + den |= nominal_rate_reg[3]; + den = (den + (390625 / 2)) / 390625; + + den >>= 1; + + if (num >= 0) + *ppm = (num + (den / 2)) / den; + else + *ppm = (num - (den / 2)) / den; + } + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_sampling_offset_sub(struct + cxd2880_tnrdmd + *tnr_dmd, int *ppm) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!ppm)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return CXD2880_RESULT_ERROR_ARG; + + ret = cxd2880_tnrdmd_dvbt_mon_sampling_offset(tnr_dmd->diver_sub, ppm); + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_quality(struct cxd2880_tnrdmd *tnr_dmd, + u8 *quality) +{ + struct cxd2880_dvbt_tpsinfo tps; + enum cxd2880_dvbt_profile profile = CXD2880_DVBT_PROFILE_HP; + u32 ber = 0; + int sn = 0; + int sn_rel = 0; + int ber_sqi = 0; + + static const int nordig_non_hdvbt_db_1000[3][5] = { + {5100, 6900, 7900, 8900, 9700}, + {10800, 13100, 14600, 15600, 16000}, + {16500, 18700, 20200, 21600, 22500} + }; + + static const int nordig_hier_hp_dvbt_db_1000[3][2][5] = { + { + {9100, 12000, 13600, 15000, 16600}, + {10900, 14100, 15700, 19400, 20600} + }, + { + {6800, 9100, 10400, 11900, 12700}, + {8500, 11000, 12800, 15000, 16000} + }, + { + {5800, 7900, 9100, 10300, 12100}, + {8000, 9300, 11600, 13000, 12900} + } + }; + + static const int nordig_hier_lp_dvbt_db_1000[3][2][5] = { + { + {12500, 14300, 15300, 16300, 16900}, + {16700, 19100, 20900, 22500, 23700} + }, + { + {15000, 17200, 18400, 19100, 20100}, + {18500, 21200, 23600, 24700, 25900} + }, + { + {19500, 21400, 22500, 23700, 24700}, + {21900, 24200, 25600, 26900, 27800} + } + }; + + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!quality)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = cxd2880_tnrdmd_dvbt_mon_tps_info(tnr_dmd, &tps); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (tps.hierarchy != CXD2880_DVBT_HIERARCHY_NON) { + u8 data = 0; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x67, &data, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + profile = + ((data & 0x01) == + 0x01) ? CXD2880_DVBT_PROFILE_LP : CXD2880_DVBT_PROFILE_HP; + } + + ret = cxd2880_tnrdmd_dvbt_mon_pre_rsber(tnr_dmd, &ber); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = cxd2880_tnrdmd_dvbt_mon_snr(tnr_dmd, &sn); + if (ret != CXD2880_RESULT_OK) + return ret; + + if ((tps.constellation >= CXD2880_DVBT_CONSTELLATION_RESERVED_3) || + (tps.rate_hp >= CXD2880_DVBT_CODERATE_RESERVED_5) || + (tps.rate_lp >= CXD2880_DVBT_CODERATE_RESERVED_5) || + (tps.hierarchy > CXD2880_DVBT_HIERARCHY_4)) { + return CXD2880_RESULT_ERROR_OTHER; + } + + if ((tps.hierarchy != CXD2880_DVBT_HIERARCHY_NON) && + (tps.constellation == CXD2880_DVBT_CONSTELLATION_QPSK)) + return CXD2880_RESULT_ERROR_OTHER; + + if (tps.hierarchy == CXD2880_DVBT_HIERARCHY_NON) + sn_rel = + sn - + nordig_non_hdvbt_db_1000[tps.constellation][tps.rate_hp]; + else if (profile == CXD2880_DVBT_PROFILE_LP) + sn_rel = + sn - nordig_hier_lp_dvbt_db_1000[(int)tps.hierarchy - + 1][(int)tps.constellation - + 1][tps.rate_lp]; + else + sn_rel = + sn - nordig_hier_hp_dvbt_db_1000[(int)tps.hierarchy - + 1][(int)tps.constellation - + 1][tps.rate_hp]; + + if (ber > 10000) { + ber_sqi = 0; + } else if (ber > 1) { + ber_sqi = (int)(10 * cxd2880_math_log10(ber)); + ber_sqi = 20 * (7 * 1000 - (ber_sqi)) - 40 * 1000; + } else { + ber_sqi = 100 * 1000; + } + + if (sn_rel < -7 * 1000) { + *quality = 0; + } else if (sn_rel < 3 * 1000) { + int tmp_sqi = (((sn_rel - (3 * 1000)) / 10) + 1000); + *quality = + (u8)(((tmp_sqi * ber_sqi) + + (1000000 / 2)) / (1000000)) & 0xFF; + } else { + *quality = (u8)((ber_sqi + 500) / 1000); + } + + if (*quality > 100) + *quality = 100; + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_per(struct cxd2880_tnrdmd *tnr_dmd, + u32 *per) +{ + u32 packet_error = 0; + u32 period = 0; + u8 rdata[3]; + + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!per)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0D) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x18, rdata, + 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if ((rdata[0] & 0x01) == 0) + return CXD2880_RESULT_ERROR_HW_STATE; + + packet_error = (rdata[1] << 8) | rdata[2]; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x5C, rdata, + 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + period = 1U << (rdata[0] & 0x0F); + + if ((period == 0) || (packet_error > period)) + return CXD2880_RESULT_ERROR_HW_STATE; + + { + u32 div = 0; + u32 Q = 0; + u32 R = 0; + + div = period; + + Q = (packet_error * 1000) / div; + R = (packet_error * 1000) % div; + + R *= 1000; + Q = Q * 1000 + R / div; + R = R % div; + + if ((div != 1) && (div / 2 <= R)) + *per = Q + 1; + else + *per = Q; + } + + return ret; +} + +static enum cxd2880_ret dvbt_calc_ssi(struct cxd2880_tnrdmd *tnr_dmd, + int rf_lvl, u8 *ssi) +{ + struct cxd2880_dvbt_tpsinfo tps; + int prel; + int temp_ssi = 0; + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + static const int ref_dbm_1000[3][5] = { + {-93000, -91000, -90000, -89000, -88000}, + {-87000, -85000, -84000, -83000, -82000}, + {-82000, -80000, -78000, -77000, -76000}, + }; + + if ((!tnr_dmd) || (!ssi)) + return CXD2880_RESULT_ERROR_ARG; + + ret = cxd2880_tnrdmd_dvbt_mon_tps_info(tnr_dmd, &tps); + if (ret != CXD2880_RESULT_OK) + return ret; + + if ((tps.constellation >= CXD2880_DVBT_CONSTELLATION_RESERVED_3) || + (tps.rate_hp >= CXD2880_DVBT_CODERATE_RESERVED_5)) + return CXD2880_RESULT_ERROR_OTHER; + + prel = rf_lvl - ref_dbm_1000[tps.constellation][tps.rate_hp]; + + if (prel < -15000) + temp_ssi = 0; + else if (prel < 0) + temp_ssi = ((2 * (prel + 15000)) + 1500) / 3000; + else if (prel < 20000) + temp_ssi = (((4 * prel) + 500) / 1000) + 10; + else if (prel < 35000) + temp_ssi = (((2 * (prel - 20000)) + 1500) / 3000) + 90; + else + temp_ssi = 100; + + *ssi = (temp_ssi > 100) ? 100 : (u8)temp_ssi; + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_ssi(struct cxd2880_tnrdmd *tnr_dmd, + u8 *ssi) +{ + int rf_lvl = 0; + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!ssi)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = cxd2880_tnrdmd_mon_rf_lvl(tnr_dmd, &rf_lvl); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = dvbt_calc_ssi(tnr_dmd, rf_lvl, ssi); + if (ret != CXD2880_RESULT_OK) + return ret; + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_ssi_sub(struct cxd2880_tnrdmd *tnr_dmd, + u8 *ssi) +{ + int rf_lvl = 0; + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!ssi)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT) + return CXD2880_RESULT_ERROR_SW_STATE; + + ret = cxd2880_tnrdmd_mon_rf_lvl(tnr_dmd->diver_sub, &rf_lvl); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = dvbt_calc_ssi(tnr_dmd, rf_lvl, ssi); + if (ret != CXD2880_RESULT_OK) + return ret; + + return ret; +} + +static enum cxd2880_ret is_tps_locked(struct cxd2880_tnrdmd *tnr_dmd) +{ + u8 sync = 0; + u8 tslock = 0; + u8 early_unlock = 0; + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + ret = + cxd2880_tnrdmd_dvbt_mon_sync_stat(tnr_dmd, &sync, &tslock, + &early_unlock); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (sync != 6) + return CXD2880_RESULT_ERROR_HW_STATE; + + return CXD2880_RESULT_OK; +} diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.h new file mode 100644 index 0000000000000000000000000000000000000000..486fc466272e762cd0f647296e2d818c8b28702c --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.h @@ -0,0 +1,106 @@ +/* + * cxd2880_tnrdmd_dvbt_mon.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * DVB-T monitor interface + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef CXD2880_TNRDMD_DVBT_MON_H +#define CXD2880_TNRDMD_DVBT_MON_H + +#include "cxd2880_tnrdmd.h" +#include "cxd2880_dvbt.h" + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_sync_stat(struct cxd2880_tnrdmd + *tnr_dmd, u8 *sync_stat, + u8 *ts_lock_stat, + u8 *unlock_detected); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_sync_stat_sub(struct cxd2880_tnrdmd + *tnr_dmd, u8 *sync_stat, + u8 *unlock_detected); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_mode_guard(struct cxd2880_tnrdmd + *tnr_dmd, + enum cxd2880_dvbt_mode + *mode, + enum cxd2880_dvbt_guard + *guard); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_carrier_offset(struct cxd2880_tnrdmd + *tnr_dmd, int *offset); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_carrier_offset_sub(struct + cxd2880_tnrdmd + *tnr_dmd, + int *offset); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_pre_viterbiber(struct cxd2880_tnrdmd + *tnr_dmd, u32 *ber); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_pre_rsber(struct cxd2880_tnrdmd + *tnr_dmd, u32 *ber); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_tps_info(struct cxd2880_tnrdmd + *tnr_dmd, + struct cxd2880_dvbt_tpsinfo + *info); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_packet_error_number(struct + cxd2880_tnrdmd + *tnr_dmd, + u32 *pen); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_spectrum_sense(struct cxd2880_tnrdmd + *tnr_dmd, + enum + cxd2880_tnrdmd_spectrum_sense + *sense); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_snr(struct cxd2880_tnrdmd *tnr_dmd, + int *snr); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_snr_diver(struct cxd2880_tnrdmd + *tnr_dmd, int *snr, + int *snr_main, int *snr_sub); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_sampling_offset(struct cxd2880_tnrdmd + *tnr_dmd, int *ppm); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_sampling_offset_sub(struct + cxd2880_tnrdmd + *tnr_dmd, + int *ppm); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_quality(struct cxd2880_tnrdmd *tnr_dmd, + u8 *quality); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_per(struct cxd2880_tnrdmd *tnr_dmd, + u32 *per); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_ssi(struct cxd2880_tnrdmd *tnr_dmd, + u8 *ssi); + +enum cxd2880_ret cxd2880_tnrdmd_dvbt_mon_ssi_sub(struct cxd2880_tnrdmd *tnr_dmd, + u8 *ssi); + +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_mon.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_mon.c new file mode 100644 index 0000000000000000000000000000000000000000..0ac5b9bf3be803d5ea99c1aca67052142cfabff1 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_mon.c @@ -0,0 +1,207 @@ +/* + * cxd2880_tnrdmd_mon.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * common monitor functions + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include "cxd2880_common.h" +#include "cxd2880_tnrdmd_mon.h" + +enum cxd2880_ret cxd2880_tnrdmd_mon_rf_lvl(struct cxd2880_tnrdmd *tnr_dmd, + int *rf_lvl_db) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!rf_lvl_db)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x10, + 0x01) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + { + u8 data[2] = { 0x80, 0x00 }; + + if (tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x5B, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + } + + CXD2880_SLEEP_IN_MON(2, tnr_dmd); + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x1A) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + { + u8 data[2]; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x15, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if ((data[0] != 0) || (data[1] != 0)) + return CXD2880_RESULT_ERROR_OTHER; + + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x11, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + *rf_lvl_db = + cxd2880_convert2s_complement((data[0] << 3) | + ((data[1] & 0xE0) >> 5), 11); + } + + *rf_lvl_db *= 125; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x10, + 0x00) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnr_dmd->rf_lvl_cmpstn) { + ret = tnr_dmd->rf_lvl_cmpstn(tnr_dmd, rf_lvl_db); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_mon_rf_lvl_sub(struct cxd2880_tnrdmd *tnr_dmd, + int *rf_lvl_db) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!rf_lvl_db)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return CXD2880_RESULT_ERROR_ARG; + + ret = cxd2880_tnrdmd_mon_rf_lvl(tnr_dmd->diver_sub, rf_lvl_db); + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_mon_internal_cpu_status(struct cxd2880_tnrdmd + *tnr_dmd, u16 *status) +{ + u8 data[2] = { 0 }; + + if ((!tnr_dmd) || (!status)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x00, + 0x1A) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, 0x15, data, + 2) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + *status = (u16)(((u16)data[0] << 8) | data[1]); + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_tnrdmd_mon_internal_cpu_status_sub(struct + cxd2880_tnrdmd + *tnr_dmd, + u16 *status) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!status)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return CXD2880_RESULT_ERROR_ARG; + + ret = + cxd2880_tnrdmd_mon_internal_cpu_status(tnr_dmd->diver_sub, status); + + return ret; +} + +enum cxd2880_ret cxd2880_tnrdmd_mon_ts_buf_info(struct cxd2880_tnrdmd *tnr_dmd, + struct + cxd2880_tnrdmd_ts_buf_info + *info) +{ + u8 data[3] = { 0 }; + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if ((!tnr_dmd) || (!info)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) && + (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x00, + 0x0A) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + if (tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_DMD, 0x50, data, + 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + info->read_ready = (u8)((data[0] & 0x10) ? 0x01 : 0x00); + info->almost_full = (u8)((data[0] & 0x08) ? 0x01 : 0x00); + info->almost_empty = (u8)((data[0] & 0x04) ? 0x01 : 0x00); + info->overflow = (u8)((data[0] & 0x02) ? 0x01 : 0x00); + info->underflow = (u8)((data[0] & 0x01) ? 0x01 : 0x00); + + info->packet_num = (u16)(((u32)(data[1] & 0x07) << 8) | data[2]); + + return ret; +} diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_mon.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_mon.h new file mode 100644 index 0000000000000000000000000000000000000000..506bd559668ff39fb9ca14a3a423569df3239ad1 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_mon.h @@ -0,0 +1,52 @@ +/* + * cxd2880_tnrdmd_mon.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * common monitor interface + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef CXD2880_TNRDMD_MON_H +#define CXD2880_TNRDMD_MON_H + +#include "cxd2880_common.h" +#include "cxd2880_tnrdmd.h" + +enum cxd2880_ret cxd2880_tnrdmd_mon_rf_lvl(struct cxd2880_tnrdmd *tnr_dmd, + int *rf_lvl_db); + +enum cxd2880_ret cxd2880_tnrdmd_mon_rf_lvl_sub(struct cxd2880_tnrdmd *tnr_dmd, + int *rf_lvl_db); + +enum cxd2880_ret cxd2880_tnrdmd_mon_internal_cpu_status(struct cxd2880_tnrdmd + *tnr_dmd, u16 *status); + +enum cxd2880_ret cxd2880_tnrdmd_mon_internal_cpu_status_sub(struct + cxd2880_tnrdmd + *tnr_dmd, + u16 *status); + +enum cxd2880_ret cxd2880_tnrdmd_mon_ts_buf_info(struct cxd2880_tnrdmd *tnr_dmd, + struct + cxd2880_tnrdmd_ts_buf_info + *info); + +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_top.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_top.c new file mode 100644 index 0000000000000000000000000000000000000000..66d78fb93a13264f60f6e34904704644133ffd59 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_top.c @@ -0,0 +1,1550 @@ +/* + * cxd2880_top.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include + +#include "dvb_frontend.h" + +#include "cxd2880.h" +#include "cxd2880_tnrdmd_mon.h" +#include "cxd2880_tnrdmd_dvbt2_mon.h" +#include "cxd2880_tnrdmd_dvbt_mon.h" +#include "cxd2880_integ_dvbt2.h" +#include "cxd2880_integ_dvbt.h" +#include "cxd2880_devio_spi.h" +#include "cxd2880_spi_device.h" +#include "cxd2880_tnrdmd_driver_version.h" + +struct cxd2880_priv { + struct cxd2880_tnrdmd tnrdmd; + struct spi_device *spi; + struct cxd2880_io regio; + struct cxd2880_spi_device spi_device; + struct cxd2880_spi cxd2880_spi; + struct cxd2880_dvbt_tune_param dvbt_tune_param; + struct cxd2880_dvbt2_tune_param dvbt2_tune_param; + struct mutex *spi_mutex; /* For SPI access exclusive control */ +}; + +/* + * return value conversion table + */ +static int return_tbl[] = { + 0, /* CXD2880_RESULT_OK */ + -EINVAL, /* CXD2880_RESULT_ERROR_ARG*/ + -EIO, /* CXD2880_RESULT_ERROR_IO */ + -EPERM, /* CXD2880_RESULT_ERROR_SW_STATE */ + -EBUSY, /* CXD2880_RESULT_ERROR_HW_STATE */ + -ETIME, /* CXD2880_RESULT_ERROR_TIMEOUT */ + -EAGAIN, /* CXD2880_RESULT_ERROR_UNLOCK */ + -ERANGE, /* CXD2880_RESULT_ERROR_RANGE */ + -EOPNOTSUPP, /* CXD2880_RESULT_ERROR_NOSUPPORT */ + -ECANCELED, /* CXD2880_RESULT_ERROR_CANCEL */ + -EPERM, /* CXD2880_RESULT_ERROR_OTHER */ + -EOVERFLOW, /* CXD2880_RESULT_ERROR_OVERFLOW */ + 0, /* CXD2880_RESULT_OK_CONFIRM */ +}; + +static enum cxd2880_ret cxd2880_pre_bit_err_t( + struct cxd2880_tnrdmd *tnrdmd, u32 *pre_bit_err, + u32 *pre_bit_count) +{ + u8 rdata[2]; + + if ((!tnrdmd) || (!pre_bit_err) || (!pre_bit_count)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnrdmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnrdmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnrdmd->sys != CXD2880_DTV_SYS_DVBT) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (slvt_freeze_reg(tnrdmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnrdmd->io->write_reg(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x00, 0x10) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnrdmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnrdmd->io->read_regs(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x39, rdata, 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnrdmd); + return CXD2880_RESULT_ERROR_IO; + } + + if ((rdata[0] & 0x01) == 0) { + slvt_unfreeze_reg(tnrdmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + + if (tnrdmd->io->read_regs(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x22, rdata, 2) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnrdmd); + return CXD2880_RESULT_ERROR_IO; + } + + *pre_bit_err = (rdata[0] << 8) | rdata[1]; + + if (tnrdmd->io->read_regs(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x6F, rdata, 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnrdmd); + return CXD2880_RESULT_ERROR_IO; + } + + slvt_unfreeze_reg(tnrdmd); + + *pre_bit_count = ((rdata[0] & 0x07) == 0) ? + 256 : (0x1000 << (rdata[0] & 0x07)); + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret cxd2880_pre_bit_err_t2( + struct cxd2880_tnrdmd *tnrdmd, u32 *pre_bit_err, + u32 *pre_bit_count) +{ + u32 period_exp = 0; + u32 n_ldpc = 0; + u8 data[5]; + + if ((!tnrdmd) || (!pre_bit_err) || (!pre_bit_count)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnrdmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnrdmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnrdmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (slvt_freeze_reg(tnrdmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnrdmd->io->write_reg(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x00, 0x0B) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnrdmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnrdmd->io->read_regs(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x3C, data, sizeof(data)) + != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnrdmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (!(data[0] & 0x01)) { + slvt_unfreeze_reg(tnrdmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + *pre_bit_err = + ((data[1] & 0x0F) << 24) | (data[2] << 16) | (data[3] << 8) | data[4]; + + if (tnrdmd->io->read_regs(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0xA0, data, 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnrdmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (((enum cxd2880_dvbt2_plp_fec)(data[0] & 0x03)) == + CXD2880_DVBT2_FEC_LDPC_16K) + n_ldpc = 16200; + else + n_ldpc = 64800; + slvt_unfreeze_reg(tnrdmd); + + if (tnrdmd->io->write_reg(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x00, 0x20) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnrdmd->io->read_regs(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x6F, data, 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + period_exp = data[0] & 0x0F; + + *pre_bit_count = (1U << period_exp) * n_ldpc; + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret cxd2880_post_bit_err_t(struct cxd2880_tnrdmd *tnrdmd, + u32 *post_bit_err, + u32 *post_bit_count) +{ + u8 rdata[3]; + u32 bit_error = 0; + u32 period_exp = 0; + + if ((!tnrdmd) || (!post_bit_err) || (!post_bit_count)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnrdmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnrdmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnrdmd->sys != CXD2880_DTV_SYS_DVBT) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnrdmd->io->write_reg(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x00, 0x0D) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnrdmd->io->read_regs(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x15, rdata, 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if ((rdata[0] & 0x40) == 0) + return CXD2880_RESULT_ERROR_HW_STATE; + + *post_bit_err = ((rdata[0] & 0x3F) << 16) | (rdata[1] << 8) | rdata[2]; + + if (tnrdmd->io->write_reg(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x00, 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnrdmd->io->read_regs(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x60, rdata, 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + period_exp = (rdata[0] & 0x1F); + + if ((period_exp <= 11) && (bit_error > (1U << period_exp) * 204 * 8)) + return CXD2880_RESULT_ERROR_HW_STATE; + + if (period_exp == 11) + *post_bit_count = 3342336; + else + *post_bit_count = (1U << period_exp) * 204 * 81; + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret cxd2880_post_bit_err_t2(struct cxd2880_tnrdmd *tnrdmd, + u32 *post_bit_err, + u32 *post_bit_count) +{ + u32 period_exp = 0; + u32 n_bch = 0; + + if ((!tnrdmd) || (!post_bit_err) || (!post_bit_count)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnrdmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnrdmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnrdmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + { + u8 data[3]; + enum cxd2880_dvbt2_plp_fec plp_fec_type = + CXD2880_DVBT2_FEC_LDPC_16K; + enum cxd2880_dvbt2_plp_code_rate plp_code_rate = + CXD2880_DVBT2_R1_2; + + static const u16 n_bch_bits_lookup[2][8] = { + {7200, 9720, 10800, 11880, 12600, 13320, 5400, 6480}, + {32400, 38880, 43200, 48600, 51840, 54000, 21600, 25920} + }; + + if (slvt_freeze_reg(tnrdmd) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnrdmd->io->write_reg(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x00, 0x0B) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnrdmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (tnrdmd->io->read_regs(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x15, data, 3) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnrdmd); + return CXD2880_RESULT_ERROR_IO; + } + + if (!(data[0] & 0x40)) { + slvt_unfreeze_reg(tnrdmd); + return CXD2880_RESULT_ERROR_HW_STATE; + } + + *post_bit_err = + ((data[0] & 0x3F) << 16) | (data[1] << 8) | data[2]; + + if (tnrdmd->io->read_regs(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x9D, data, 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnrdmd); + return CXD2880_RESULT_ERROR_IO; + } + + plp_code_rate = + (enum cxd2880_dvbt2_plp_code_rate)(data[0] & 0x07); + + if (tnrdmd->io->read_regs(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0xA0, data, 1) != CXD2880_RESULT_OK) { + slvt_unfreeze_reg(tnrdmd); + return CXD2880_RESULT_ERROR_IO; + } + + plp_fec_type = (enum cxd2880_dvbt2_plp_fec)(data[0] & 0x03); + + slvt_unfreeze_reg(tnrdmd); + + if (tnrdmd->io->write_reg(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x00, 0x20) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnrdmd->io->read_regs(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x72, data, 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + period_exp = data[0] & 0x0F; + + if ((plp_fec_type > CXD2880_DVBT2_FEC_LDPC_64K) || + (plp_code_rate > CXD2880_DVBT2_R2_5)) + return CXD2880_RESULT_ERROR_HW_STATE; + + n_bch = n_bch_bits_lookup[plp_fec_type][plp_code_rate]; + } + + if (*post_bit_err > ((1U << period_exp) * n_bch)) + return CXD2880_RESULT_ERROR_HW_STATE; + + *post_bit_count = (1U << period_exp) * n_bch; + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret cxd2880_read_block_err_t( + struct cxd2880_tnrdmd *tnrdmd, + u32 *block_err, + u32 *block_count) +{ + u8 rdata[3]; + + if ((!tnrdmd) || (!block_err) || (!block_count)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnrdmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnrdmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnrdmd->sys != CXD2880_DTV_SYS_DVBT) + return CXD2880_RESULT_ERROR_SW_STATE; + + if (tnrdmd->io->write_reg(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x00, 0x0D) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnrdmd->io->read_regs(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x18, rdata, 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if ((rdata[0] & 0x01) == 0) + return CXD2880_RESULT_ERROR_HW_STATE; + + *block_err = (rdata[1] << 8) | rdata[2]; + + if (tnrdmd->io->write_reg(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x00, 0x10) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnrdmd->io->read_regs(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x5C, rdata, 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + *block_count = 1U << (rdata[0] & 0x0F); + + if ((*block_count == 0) || (*block_err > *block_count)) + return CXD2880_RESULT_ERROR_HW_STATE; + + return CXD2880_RESULT_OK; +} + +static enum cxd2880_ret cxd2880_read_block_err_t2( + struct cxd2880_tnrdmd *tnrdmd, + u32 *block_err, + u32 *block_count) +{ + if ((!tnrdmd) || (!block_err) || (!block_count)) + return CXD2880_RESULT_ERROR_ARG; + + if (tnrdmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB) + return CXD2880_RESULT_ERROR_ARG; + + if (tnrdmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return CXD2880_RESULT_ERROR_SW_STATE; + if (tnrdmd->sys != CXD2880_DTV_SYS_DVBT2) + return CXD2880_RESULT_ERROR_SW_STATE; + + { + u8 rdata[3]; + + if (tnrdmd->io->write_reg(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x00, 0x0B) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnrdmd->io->read_regs(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x18, rdata, 3) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if ((rdata[0] & 0x01) == 0) + return CXD2880_RESULT_ERROR_HW_STATE; + + *block_err = (rdata[1] << 8) | rdata[2]; + + if (tnrdmd->io->write_reg(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0x00, 0x24) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + if (tnrdmd->io->read_regs(tnrdmd->io, CXD2880_IO_TGT_DMD, + 0xDC, rdata, 1) != CXD2880_RESULT_OK) + return CXD2880_RESULT_ERROR_IO; + + *block_count = 1U << (rdata[0] & 0x0F); + } + + if ((*block_count == 0) || (*block_err > *block_count)) + return CXD2880_RESULT_ERROR_HW_STATE; + + return CXD2880_RESULT_OK; +} + +static void cxd2880_release(struct dvb_frontend *fe) +{ + struct cxd2880_priv *priv = NULL; + + if (!fe) { + pr_err("%s: invalid arg.\n", __func__); + return; + } + priv = (struct cxd2880_priv *)fe->demodulator_priv; + kfree(priv); +} + +static int cxd2880_init(struct dvb_frontend *fe) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + struct cxd2880_priv *priv = NULL; + struct cxd2880_tnrdmd_create_param create_param; + + if (!fe) { + pr_err("%s: invalid arg.\n", __func__); + return -EINVAL; + } + + priv = (struct cxd2880_priv *)fe->demodulator_priv; + + create_param.ts_output_if = CXD2880_TNRDMD_TSOUT_IF_SPI; + create_param.xtal_share_type = CXD2880_TNRDMD_XTAL_SHARE_NONE; + create_param.en_internal_ldo = 1; + create_param.xosc_cap = 18; + create_param.xosc_i = 8; + create_param.stationary_use = 1; + + mutex_lock(priv->spi_mutex); + if (priv->tnrdmd.io != &priv->regio) { + ret = cxd2880_tnrdmd_create(&priv->tnrdmd, + &priv->regio, &create_param); + if (ret != CXD2880_RESULT_OK) { + mutex_unlock(priv->spi_mutex); + dev_info(&priv->spi->dev, + "%s: cxd2880 tnrdmd create failed %d\n", + __func__, ret); + return return_tbl[ret]; + } + } + ret = cxd2880_integ_init(&priv->tnrdmd); + if (ret != CXD2880_RESULT_OK) { + mutex_unlock(priv->spi_mutex); + dev_err(&priv->spi->dev, "%s: cxd2880 integ init failed %d\n", + __func__, ret); + return return_tbl[ret]; + } + mutex_unlock(priv->spi_mutex); + + dev_dbg(&priv->spi->dev, "%s: OK.\n", __func__); + + return return_tbl[ret]; +} + +static int cxd2880_sleep(struct dvb_frontend *fe) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + struct cxd2880_priv *priv = NULL; + + if (!fe) { + pr_err("%s: inavlid arg\n", __func__); + return -EINVAL; + } + + priv = (struct cxd2880_priv *)fe->demodulator_priv; + + mutex_lock(priv->spi_mutex); + ret = cxd2880_tnrdmd_sleep(&priv->tnrdmd); + mutex_unlock(priv->spi_mutex); + + dev_dbg(&priv->spi->dev, "%s: tnrdmd_sleep ret %d\n", + __func__, ret); + + return return_tbl[ret]; +} + +static int cxd2880_read_signal_strength(struct dvb_frontend *fe, + u16 *strength) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + struct cxd2880_priv *priv = NULL; + struct dtv_frontend_properties *c = NULL; + int level = 0; + + if ((!fe) || (!strength)) { + pr_err("%s: inavlid arg\n", __func__); + return -EINVAL; + } + + priv = (struct cxd2880_priv *)fe->demodulator_priv; + c = &fe->dtv_property_cache; + + mutex_lock(priv->spi_mutex); + if ((c->delivery_system == SYS_DVBT) || + (c->delivery_system == SYS_DVBT2)) { + ret = cxd2880_tnrdmd_mon_rf_lvl(&priv->tnrdmd, &level); + } else { + dev_dbg(&priv->spi->dev, "%s: invalid system\n", __func__); + mutex_unlock(priv->spi_mutex); + return -EINVAL; + } + mutex_unlock(priv->spi_mutex); + + level /= 125; + /* -105dBm - -30dBm (-105000/125 = -840, -30000/125 = -240 */ + level = clamp(level, -840, -240); + /* scale value to 0x0000-0xFFFF */ + *strength = (u16)(((level + 840) * 0xFFFF) / (-240 + 840)); + + if (ret != CXD2880_RESULT_OK) + dev_dbg(&priv->spi->dev, "%s: ret = %d\n", __func__, ret); + + return return_tbl[ret]; +} + +static int cxd2880_read_snr(struct dvb_frontend *fe, u16 *snr) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + int snrvalue = 0; + struct cxd2880_priv *priv = NULL; + struct dtv_frontend_properties *c = NULL; + + if ((!fe) || (!snr)) { + pr_err("%s: inavlid arg\n", __func__); + return -EINVAL; + } + + priv = (struct cxd2880_priv *)fe->demodulator_priv; + c = &fe->dtv_property_cache; + + mutex_lock(priv->spi_mutex); + if (c->delivery_system == SYS_DVBT) { + ret = cxd2880_tnrdmd_dvbt_mon_snr(&priv->tnrdmd, + &snrvalue); + } else if (c->delivery_system == SYS_DVBT2) { + ret = cxd2880_tnrdmd_dvbt2_mon_snr(&priv->tnrdmd, + &snrvalue); + } else { + dev_err(&priv->spi->dev, "%s: invalid system\n", __func__); + mutex_unlock(priv->spi_mutex); + return -EINVAL; + } + mutex_unlock(priv->spi_mutex); + + if (snrvalue < 0) + snrvalue = 0; + *snr = (u16)snrvalue; + + if (ret != CXD2880_RESULT_OK) + dev_dbg(&priv->spi->dev, "%s: ret = %d\n", __func__, ret); + + return return_tbl[ret]; +} + +static int cxd2880_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + struct cxd2880_priv *priv = NULL; + struct dtv_frontend_properties *c = NULL; + + if ((!fe) || (!ucblocks)) { + pr_err("%s: inavlid arg\n", __func__); + return -EINVAL; + } + + priv = (struct cxd2880_priv *)fe->demodulator_priv; + c = &fe->dtv_property_cache; + + mutex_lock(priv->spi_mutex); + if (c->delivery_system == SYS_DVBT) { + ret = cxd2880_tnrdmd_dvbt_mon_packet_error_number( + &priv->tnrdmd, + ucblocks); + } else if (c->delivery_system == SYS_DVBT2) { + ret = cxd2880_tnrdmd_dvbt2_mon_packet_error_number( + &priv->tnrdmd, + ucblocks); + } else { + dev_err(&priv->spi->dev, "%s: invlaid system\n", __func__); + mutex_unlock(priv->spi_mutex); + return -EINVAL; + } + mutex_unlock(priv->spi_mutex); + + if (ret != CXD2880_RESULT_OK) + dev_dbg(&priv->spi->dev, "%s: ret = %d\n", __func__, ret); + + return return_tbl[ret]; +} + +static int cxd2880_read_ber(struct dvb_frontend *fe, u32 *ber) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + struct cxd2880_priv *priv = NULL; + struct dtv_frontend_properties *c = NULL; + + if ((!fe) || (!ber)) { + pr_err("%s: inavlid arg\n", __func__); + return -EINVAL; + } + + priv = (struct cxd2880_priv *)fe->demodulator_priv; + c = &fe->dtv_property_cache; + + mutex_lock(priv->spi_mutex); + if (c->delivery_system == SYS_DVBT) { + ret = cxd2880_tnrdmd_dvbt_mon_pre_rsber(&priv->tnrdmd, + ber); + /* x100 to change unit.(10^7 -> 10^9 */ + *ber *= 100; + } else if (c->delivery_system == SYS_DVBT2) { + ret = cxd2880_tnrdmd_dvbt2_mon_pre_bchber(&priv->tnrdmd, + ber); + } else { + dev_err(&priv->spi->dev, "%s: invlaid system\n", __func__); + mutex_unlock(priv->spi_mutex); + return -EINVAL; + } + mutex_unlock(priv->spi_mutex); + + if (ret != CXD2880_RESULT_OK) + dev_dbg(&priv->spi->dev, "%s: ret = %d\n", __func__, ret); + + return return_tbl[ret]; +} + +static int cxd2880_set_frontend(struct dvb_frontend *fe) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + struct dtv_frontend_properties *c; + struct cxd2880_priv *priv; + enum cxd2880_dtv_bandwidth bw = CXD2880_DTV_BW_1_7_MHZ; + + if (!fe) { + pr_err("%s: inavlid arg\n", __func__); + return -EINVAL; + } + + priv = (struct cxd2880_priv *)fe->demodulator_priv; + c = &fe->dtv_property_cache; + + switch (c->bandwidth_hz) { + case 1712000: + bw = CXD2880_DTV_BW_1_7_MHZ; + break; + case 5000000: + bw = CXD2880_DTV_BW_5_MHZ; + break; + case 6000000: + bw = CXD2880_DTV_BW_6_MHZ; + break; + case 7000000: + bw = CXD2880_DTV_BW_7_MHZ; + break; + case 8000000: + bw = CXD2880_DTV_BW_8_MHZ; + break; + default: + return -EINVAL; + } + + dev_info(&priv->spi->dev, "%s: sys:%d freq:%d bw:%d\n", __func__, + c->delivery_system, c->frequency, bw); + mutex_lock(priv->spi_mutex); + if (c->delivery_system == SYS_DVBT) { + priv->tnrdmd.sys = CXD2880_DTV_SYS_DVBT; + priv->dvbt_tune_param.center_freq_khz = c->frequency / 1000; + priv->dvbt_tune_param.bandwidth = bw; + priv->dvbt_tune_param.profile = CXD2880_DVBT_PROFILE_HP; + ret = cxd2880_integ_dvbt_tune(&priv->tnrdmd, + &priv->dvbt_tune_param); + } else if (c->delivery_system == SYS_DVBT2) { + priv->tnrdmd.sys = CXD2880_DTV_SYS_DVBT2; + priv->dvbt2_tune_param.center_freq_khz = c->frequency / 1000; + priv->dvbt2_tune_param.bandwidth = bw; + priv->dvbt2_tune_param.data_plp_id = (u16)c->stream_id; + ret = cxd2880_integ_dvbt2_tune(&priv->tnrdmd, + &priv->dvbt2_tune_param); + } else { + dev_err(&priv->spi->dev, "%s: invalid system\n", __func__); + mutex_unlock(priv->spi_mutex); + return -EINVAL; + } + mutex_unlock(priv->spi_mutex); + dev_info(&priv->spi->dev, "%s: tune result %d\n", __func__, ret); + + return return_tbl[ret]; +} + +static int cxd2880_read_status(struct dvb_frontend *fe, + enum fe_status *status) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + u8 sync = 0; + u8 lock = 0; + u8 unlock = 0; + struct cxd2880_priv *priv = NULL; + struct dtv_frontend_properties *c = NULL; + + if ((!fe) || (!status)) { + pr_err("%s: invalid arg\n", __func__); + return -EINVAL; + } + + priv = (struct cxd2880_priv *)fe->demodulator_priv; + c = &fe->dtv_property_cache; + *status = 0; + + if (priv->tnrdmd.state == CXD2880_TNRDMD_STATE_ACTIVE) { + mutex_lock(priv->spi_mutex); + if (c->delivery_system == SYS_DVBT) { + ret = cxd2880_tnrdmd_dvbt_mon_sync_stat( + &priv->tnrdmd, + &sync, + &lock, + &unlock); + } else if (c->delivery_system == SYS_DVBT2) { + ret = cxd2880_tnrdmd_dvbt2_mon_sync_stat( + &priv->tnrdmd, + &sync, + &lock, + &unlock); + } else { + dev_err(&priv->spi->dev, + "%s: invlaid system", __func__); + mutex_unlock(priv->spi_mutex); + return -EINVAL; + } + + mutex_unlock(priv->spi_mutex); + if (ret != CXD2880_RESULT_OK) { + dev_err(&priv->spi->dev, "%s: failed. sys = %d\n", + __func__, priv->tnrdmd.sys); + return return_tbl[ret]; + } + + if (sync == 6) { + *status = FE_HAS_SIGNAL | + FE_HAS_CARRIER; + } + if (lock) + *status |= FE_HAS_VITERBI | + FE_HAS_SYNC | + FE_HAS_LOCK; + } + + dev_dbg(&priv->spi->dev, "%s: status %d result %d\n", __func__, + *status, ret); + + return return_tbl[CXD2880_RESULT_OK]; +} + +static int cxd2880_tune(struct dvb_frontend *fe, + bool retune, + unsigned int mode_flags, + unsigned int *delay, + enum fe_status *status) +{ + int ret = 0; + + if ((!fe) || (!delay) || (!status)) { + pr_err("%s: invalid arg.", __func__); + return -EINVAL; + } + + if (retune) { + ret = cxd2880_set_frontend(fe); + if (ret) { + pr_err("%s: cxd2880_set_frontend failed %d\n", + __func__, ret); + return ret; + } + } + + *delay = HZ / 5; + + return cxd2880_read_status(fe, status); +} + +static int cxd2880_get_frontend_t(struct dvb_frontend *fe, + struct dtv_frontend_properties *c) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + int result = 0; + struct cxd2880_priv *priv = NULL; + enum cxd2880_dvbt_mode mode = CXD2880_DVBT_MODE_2K; + enum cxd2880_dvbt_guard guard = CXD2880_DVBT_GUARD_1_32; + struct cxd2880_dvbt_tpsinfo tps; + enum cxd2880_tnrdmd_spectrum_sense sense; + u16 snr = 0; + int strength = 0; + u32 pre_bit_err = 0, pre_bit_count = 0; + u32 post_bit_err = 0, post_bit_count = 0; + u32 block_err = 0, block_count = 0; + + if ((!fe) || (!c)) { + pr_err("%s: invalid arg\n", __func__); + return -EINVAL; + } + + priv = (struct cxd2880_priv *)fe->demodulator_priv; + + mutex_lock(priv->spi_mutex); + ret = cxd2880_tnrdmd_dvbt_mon_mode_guard(&priv->tnrdmd, + &mode, &guard); + mutex_unlock(priv->spi_mutex); + if (ret == CXD2880_RESULT_OK) { + switch (mode) { + case CXD2880_DVBT_MODE_2K: + c->transmission_mode = TRANSMISSION_MODE_2K; + break; + case CXD2880_DVBT_MODE_8K: + c->transmission_mode = TRANSMISSION_MODE_8K; + break; + default: + c->transmission_mode = TRANSMISSION_MODE_2K; + dev_err(&priv->spi->dev, "%s: get invalid mode %d\n", + __func__, mode); + break; + } + switch (guard) { + case CXD2880_DVBT_GUARD_1_32: + c->guard_interval = GUARD_INTERVAL_1_32; + break; + case CXD2880_DVBT_GUARD_1_16: + c->guard_interval = GUARD_INTERVAL_1_16; + break; + case CXD2880_DVBT_GUARD_1_8: + c->guard_interval = GUARD_INTERVAL_1_8; + break; + case CXD2880_DVBT_GUARD_1_4: + c->guard_interval = GUARD_INTERVAL_1_4; + break; + default: + c->guard_interval = GUARD_INTERVAL_1_32; + dev_err(&priv->spi->dev, "%s: get invalid guard %d\n", + __func__, guard); + break; + } + } else { + c->transmission_mode = TRANSMISSION_MODE_2K; + c->guard_interval = GUARD_INTERVAL_1_32; + dev_dbg(&priv->spi->dev, + "%s: ModeGuard err %d\n", __func__, ret); + } + + mutex_lock(priv->spi_mutex); + ret = cxd2880_tnrdmd_dvbt_mon_tps_info(&priv->tnrdmd, &tps); + mutex_unlock(priv->spi_mutex); + if (ret == CXD2880_RESULT_OK) { + switch (tps.hierarchy) { + case CXD2880_DVBT_HIERARCHY_NON: + c->hierarchy = HIERARCHY_NONE; + break; + case CXD2880_DVBT_HIERARCHY_1: + c->hierarchy = HIERARCHY_1; + break; + case CXD2880_DVBT_HIERARCHY_2: + c->hierarchy = HIERARCHY_2; + break; + case CXD2880_DVBT_HIERARCHY_4: + c->hierarchy = HIERARCHY_4; + break; + default: + c->hierarchy = HIERARCHY_NONE; + dev_err(&priv->spi->dev, + "%s: TPSInfo hierarchy invalid %d\n", + __func__, tps.hierarchy); + break; + } + + switch (tps.rate_hp) { + case CXD2880_DVBT_CODERATE_1_2: + c->code_rate_HP = FEC_1_2; + break; + case CXD2880_DVBT_CODERATE_2_3: + c->code_rate_HP = FEC_2_3; + break; + case CXD2880_DVBT_CODERATE_3_4: + c->code_rate_HP = FEC_3_4; + break; + case CXD2880_DVBT_CODERATE_5_6: + c->code_rate_HP = FEC_5_6; + break; + case CXD2880_DVBT_CODERATE_7_8: + c->code_rate_HP = FEC_7_8; + break; + default: + c->code_rate_HP = FEC_NONE; + dev_err(&priv->spi->dev, + "%s: TPSInfo rateHP invalid %d\n", + __func__, tps.rate_hp); + break; + } + switch (tps.rate_lp) { + case CXD2880_DVBT_CODERATE_1_2: + c->code_rate_LP = FEC_1_2; + break; + case CXD2880_DVBT_CODERATE_2_3: + c->code_rate_LP = FEC_2_3; + break; + case CXD2880_DVBT_CODERATE_3_4: + c->code_rate_LP = FEC_3_4; + break; + case CXD2880_DVBT_CODERATE_5_6: + c->code_rate_LP = FEC_5_6; + break; + case CXD2880_DVBT_CODERATE_7_8: + c->code_rate_LP = FEC_7_8; + break; + default: + c->code_rate_LP = FEC_NONE; + dev_err(&priv->spi->dev, + "%s: TPSInfo rateLP invalid %d\n", + __func__, tps.rate_lp); + break; + } + switch (tps.constellation) { + case CXD2880_DVBT_CONSTELLATION_QPSK: + c->modulation = QPSK; + break; + case CXD2880_DVBT_CONSTELLATION_16QAM: + c->modulation = QAM_16; + break; + case CXD2880_DVBT_CONSTELLATION_64QAM: + c->modulation = QAM_64; + break; + default: + c->modulation = QPSK; + dev_err(&priv->spi->dev, + "%s: TPSInfo constellation invalid %d\n", + __func__, tps.constellation); + break; + } + } else { + c->hierarchy = HIERARCHY_NONE; + c->code_rate_HP = FEC_NONE; + c->code_rate_LP = FEC_NONE; + c->modulation = QPSK; + dev_dbg(&priv->spi->dev, + "%s: TPS info err %d\n", __func__, ret); + } + + mutex_lock(priv->spi_mutex); + ret = cxd2880_tnrdmd_dvbt_mon_spectrum_sense(&priv->tnrdmd, &sense); + mutex_unlock(priv->spi_mutex); + if (ret == CXD2880_RESULT_OK) { + switch (sense) { + case CXD2880_TNRDMD_SPECTRUM_NORMAL: + c->inversion = INVERSION_OFF; + break; + case CXD2880_TNRDMD_SPECTRUM_INV: + c->inversion = INVERSION_ON; + break; + default: + c->inversion = INVERSION_OFF; + dev_err(&priv->spi->dev, + "%s: spectrum sense invalid %d\n", + __func__, sense); + break; + } + } else { + c->inversion = INVERSION_OFF; + dev_dbg(&priv->spi->dev, + "%s: spectrum_sense %d\n", __func__, ret); + } + + mutex_lock(priv->spi_mutex); + ret = cxd2880_tnrdmd_mon_rf_lvl(&priv->tnrdmd, &strength); + mutex_unlock(priv->spi_mutex); + if (ret == CXD2880_RESULT_OK) { + c->strength.len = 1; + c->strength.stat[0].scale = FE_SCALE_DECIBEL; + c->strength.stat[0].svalue = strength; + } else { + c->strength.len = 1; + c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + dev_dbg(&priv->spi->dev, "%s: mon_rf_lvl %d\n", + __func__, result); + } + + result = cxd2880_read_snr(fe, &snr); + if (!result) { + c->cnr.len = 1; + c->cnr.stat[0].scale = FE_SCALE_DECIBEL; + c->cnr.stat[0].svalue = snr; + } else { + c->cnr.len = 1; + c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + dev_dbg(&priv->spi->dev, "%s: read_snr %d\n", __func__, result); + } + + mutex_lock(priv->spi_mutex); + ret = cxd2880_pre_bit_err_t(&priv->tnrdmd, &pre_bit_err, + &pre_bit_count); + mutex_unlock(priv->spi_mutex); + if (ret == CXD2880_RESULT_OK) { + c->pre_bit_error.len = 1; + c->pre_bit_error.stat[0].scale = FE_SCALE_COUNTER; + c->pre_bit_error.stat[0].uvalue = pre_bit_err; + c->pre_bit_count.len = 1; + c->pre_bit_count.stat[0].scale = FE_SCALE_COUNTER; + c->pre_bit_count.stat[0].uvalue = pre_bit_count; + } else { + c->pre_bit_error.len = 1; + c->pre_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + c->pre_bit_count.len = 1; + c->pre_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + dev_dbg(&priv->spi->dev, + "%s: pre_bit_error_t failed %d\n", + __func__, ret); + } + + mutex_lock(priv->spi_mutex); + ret = cxd2880_post_bit_err_t(&priv->tnrdmd, + &post_bit_err, &post_bit_count); + mutex_unlock(priv->spi_mutex); + if (ret == CXD2880_RESULT_OK) { + c->post_bit_error.len = 1; + c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; + c->post_bit_error.stat[0].uvalue = post_bit_err; + c->post_bit_count.len = 1; + c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; + c->post_bit_count.stat[0].uvalue = post_bit_count; + } else { + c->post_bit_error.len = 1; + c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + c->post_bit_count.len = 1; + c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + dev_dbg(&priv->spi->dev, + "%s: post_bit_err_t %d\n", __func__, ret); + } + + mutex_lock(priv->spi_mutex); + ret = cxd2880_read_block_err_t(&priv->tnrdmd, + &block_err, &block_count); + mutex_unlock(priv->spi_mutex); + if (ret == CXD2880_RESULT_OK) { + c->block_error.len = 1; + c->block_error.stat[0].scale = FE_SCALE_COUNTER; + c->block_error.stat[0].uvalue = block_err; + c->block_count.len = 1; + c->block_count.stat[0].scale = FE_SCALE_COUNTER; + c->block_count.stat[0].uvalue = block_count; + } else { + c->block_error.len = 1; + c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + c->block_count.len = 1; + c->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + dev_dbg(&priv->spi->dev, + "%s: read_block_err_t %d\n", __func__, ret); + } + + return 0; +} + +static int cxd2880_get_frontend_t2(struct dvb_frontend *fe, + struct dtv_frontend_properties *c) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + int result = 0; + struct cxd2880_priv *priv = NULL; + struct cxd2880_dvbt2_l1pre l1pre; + enum cxd2880_dvbt2_plp_code_rate coderate; + enum cxd2880_dvbt2_plp_constell qam; + enum cxd2880_tnrdmd_spectrum_sense sense; + u16 snr = 0; + int strength = 0; + u32 pre_bit_err = 0, pre_bit_count = 0; + u32 post_bit_err = 0, post_bit_count = 0; + u32 block_err = 0, block_count = 0; + + if ((!fe) || (!c)) { + pr_err("%s: invalid arg.\n", __func__); + return -EINVAL; + } + + priv = (struct cxd2880_priv *)fe->demodulator_priv; + + mutex_lock(priv->spi_mutex); + ret = cxd2880_tnrdmd_dvbt2_mon_l1_pre(&priv->tnrdmd, &l1pre); + mutex_unlock(priv->spi_mutex); + if (ret == CXD2880_RESULT_OK) { + switch (l1pre.fft_mode) { + case CXD2880_DVBT2_M2K: + c->transmission_mode = TRANSMISSION_MODE_2K; + break; + case CXD2880_DVBT2_M8K: + c->transmission_mode = TRANSMISSION_MODE_8K; + break; + case CXD2880_DVBT2_M4K: + c->transmission_mode = TRANSMISSION_MODE_4K; + break; + case CXD2880_DVBT2_M1K: + c->transmission_mode = TRANSMISSION_MODE_1K; + break; + case CXD2880_DVBT2_M16K: + c->transmission_mode = TRANSMISSION_MODE_16K; + break; + case CXD2880_DVBT2_M32K: + c->transmission_mode = TRANSMISSION_MODE_32K; + break; + default: + c->transmission_mode = TRANSMISSION_MODE_2K; + dev_err(&priv->spi->dev, + "%s: L1Pre fft_mode invalid %d\n", + __func__, l1pre.fft_mode); + break; + } + switch (l1pre.gi) { + case CXD2880_DVBT2_G1_32: + c->guard_interval = GUARD_INTERVAL_1_32; + break; + case CXD2880_DVBT2_G1_16: + c->guard_interval = GUARD_INTERVAL_1_16; + break; + case CXD2880_DVBT2_G1_8: + c->guard_interval = GUARD_INTERVAL_1_8; + break; + case CXD2880_DVBT2_G1_4: + c->guard_interval = GUARD_INTERVAL_1_4; + break; + case CXD2880_DVBT2_G1_128: + c->guard_interval = GUARD_INTERVAL_1_128; + break; + case CXD2880_DVBT2_G19_128: + c->guard_interval = GUARD_INTERVAL_19_128; + break; + case CXD2880_DVBT2_G19_256: + c->guard_interval = GUARD_INTERVAL_19_256; + break; + default: + c->guard_interval = GUARD_INTERVAL_1_32; + dev_err(&priv->spi->dev, + "%s: L1Pre gi invalid %d\n", + __func__, l1pre.gi); + break; + } + } else { + c->transmission_mode = TRANSMISSION_MODE_2K; + c->guard_interval = GUARD_INTERVAL_1_32; + dev_dbg(&priv->spi->dev, + "%s: L1Pre err %d\n", __func__, ret); + } + + mutex_lock(priv->spi_mutex); + ret = cxd2880_tnrdmd_dvbt2_mon_code_rate(&priv->tnrdmd, + CXD2880_DVBT2_PLP_DATA, + &coderate); + mutex_unlock(priv->spi_mutex); + if (ret == CXD2880_RESULT_OK) { + switch (coderate) { + case CXD2880_DVBT2_R1_2: + c->fec_inner = FEC_1_2; + break; + case CXD2880_DVBT2_R3_5: + c->fec_inner = FEC_3_5; + break; + case CXD2880_DVBT2_R2_3: + c->fec_inner = FEC_2_3; + break; + case CXD2880_DVBT2_R3_4: + c->fec_inner = FEC_3_4; + break; + case CXD2880_DVBT2_R4_5: + c->fec_inner = FEC_4_5; + break; + case CXD2880_DVBT2_R5_6: + c->fec_inner = FEC_5_6; + break; + default: + c->fec_inner = FEC_NONE; + dev_err(&priv->spi->dev, + "%s: CodeRate invalid %d\n", + __func__, coderate); + break; + } + } else { + c->fec_inner = FEC_NONE; + dev_dbg(&priv->spi->dev, "%s: CodeRate %d\n", __func__, ret); + } + + mutex_lock(priv->spi_mutex); + ret = cxd2880_tnrdmd_dvbt2_mon_qam(&priv->tnrdmd, + CXD2880_DVBT2_PLP_DATA, + &qam); + mutex_unlock(priv->spi_mutex); + if (ret == CXD2880_RESULT_OK) { + switch (qam) { + case CXD2880_DVBT2_QPSK: + c->modulation = QPSK; + break; + case CXD2880_DVBT2_QAM16: + c->modulation = QAM_16; + break; + case CXD2880_DVBT2_QAM64: + c->modulation = QAM_64; + break; + case CXD2880_DVBT2_QAM256: + c->modulation = QAM_256; + break; + default: + c->modulation = QPSK; + dev_err(&priv->spi->dev, + "%s: QAM invalid %d\n", + __func__, qam); + break; + } + } else { + c->modulation = QPSK; + dev_dbg(&priv->spi->dev, "%s: QAM %d\n", __func__, ret); + } + + mutex_lock(priv->spi_mutex); + ret = cxd2880_tnrdmd_dvbt2_mon_spectrum_sense(&priv->tnrdmd, &sense); + mutex_unlock(priv->spi_mutex); + if (ret == CXD2880_RESULT_OK) { + switch (sense) { + case CXD2880_TNRDMD_SPECTRUM_NORMAL: + c->inversion = INVERSION_OFF; + break; + case CXD2880_TNRDMD_SPECTRUM_INV: + c->inversion = INVERSION_ON; + break; + default: + c->inversion = INVERSION_OFF; + dev_err(&priv->spi->dev, + "%s: spectrum sense invalid %d\n", + __func__, sense); + break; + } + } else { + c->inversion = INVERSION_OFF; + dev_dbg(&priv->spi->dev, + "%s: SpectrumSense %d\n", __func__, ret); + } + + mutex_lock(priv->spi_mutex); + ret = cxd2880_tnrdmd_mon_rf_lvl(&priv->tnrdmd, &strength); + mutex_unlock(priv->spi_mutex); + if (ret == CXD2880_RESULT_OK) { + c->strength.len = 1; + c->strength.stat[0].scale = FE_SCALE_DECIBEL; + c->strength.stat[0].svalue = strength; + } else { + c->strength.len = 1; + c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + dev_dbg(&priv->spi->dev, + "%s: mon_rf_lvl %d\n", __func__, ret); + } + + result = cxd2880_read_snr(fe, &snr); + if (!result) { + c->cnr.len = 1; + c->cnr.stat[0].scale = FE_SCALE_DECIBEL; + c->cnr.stat[0].svalue = snr; + } else { + c->cnr.len = 1; + c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + dev_dbg(&priv->spi->dev, "%s: read_snr %d\n", __func__, result); + } + + mutex_lock(priv->spi_mutex); + ret = cxd2880_pre_bit_err_t2(&priv->tnrdmd, + &pre_bit_err, + &pre_bit_count); + mutex_unlock(priv->spi_mutex); + if (ret == CXD2880_RESULT_OK) { + c->pre_bit_error.len = 1; + c->pre_bit_error.stat[0].scale = FE_SCALE_COUNTER; + c->pre_bit_error.stat[0].uvalue = pre_bit_err; + c->pre_bit_count.len = 1; + c->pre_bit_count.stat[0].scale = FE_SCALE_COUNTER; + c->pre_bit_count.stat[0].uvalue = pre_bit_count; + } else { + c->pre_bit_error.len = 1; + c->pre_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + c->pre_bit_count.len = 1; + c->pre_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + dev_dbg(&priv->spi->dev, + "%s: read_bit_err_t2 %d\n", __func__, ret); + } + + mutex_lock(priv->spi_mutex); + ret = cxd2880_post_bit_err_t2(&priv->tnrdmd, + &post_bit_err, &post_bit_count); + mutex_unlock(priv->spi_mutex); + if (ret == CXD2880_RESULT_OK) { + c->post_bit_error.len = 1; + c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; + c->post_bit_error.stat[0].uvalue = post_bit_err; + c->post_bit_count.len = 1; + c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; + c->post_bit_count.stat[0].uvalue = post_bit_count; + } else { + c->post_bit_error.len = 1; + c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + c->post_bit_count.len = 1; + c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + dev_dbg(&priv->spi->dev, + "%s: post_bit_err_t2 %d\n", __func__, ret); + } + + mutex_lock(priv->spi_mutex); + ret = cxd2880_read_block_err_t2(&priv->tnrdmd, + &block_err, &block_count); + mutex_unlock(priv->spi_mutex); + if (ret == CXD2880_RESULT_OK) { + c->block_error.len = 1; + c->block_error.stat[0].scale = FE_SCALE_COUNTER; + c->block_error.stat[0].uvalue = block_err; + c->block_count.len = 1; + c->block_count.stat[0].scale = FE_SCALE_COUNTER; + c->block_count.stat[0].uvalue = block_count; + } else { + c->block_error.len = 1; + c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + c->block_count.len = 1; + c->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + dev_dbg(&priv->spi->dev, + "%s: read_block_err_t2 %d\n", __func__, ret); + } + + return 0; +} + +static int cxd2880_get_frontend(struct dvb_frontend *fe, + struct dtv_frontend_properties *props) +{ + struct cxd2880_priv *priv = NULL; + int result = 0; + + if ((!fe) || (!props)) { + pr_err("%s: invalid arg.", __func__); + return -EINVAL; + } + + priv = (struct cxd2880_priv *)fe->demodulator_priv; + + dev_dbg(&priv->spi->dev, "%s: system=%d\n", __func__, + fe->dtv_property_cache.delivery_system); + switch (fe->dtv_property_cache.delivery_system) { + case SYS_DVBT: + result = cxd2880_get_frontend_t(fe, props); + break; + case SYS_DVBT2: + result = cxd2880_get_frontend_t2(fe, props); + break; + default: + result = -EINVAL; + break; + } + + return result; +} + +static enum dvbfe_algo cxd2880_get_frontend_algo(struct dvb_frontend *fe) +{ + return DVBFE_ALGO_HW; +} + +static struct dvb_frontend_ops cxd2880_dvbt_t2_ops; + +struct dvb_frontend *cxd2880_attach(struct dvb_frontend *fe, + struct cxd2880_config *cfg) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + enum cxd2880_tnrdmd_chip_id chipid = + CXD2880_TNRDMD_CHIP_ID_UNKNOWN; + static struct cxd2880_priv *priv; + u8 data = 0; + + if (!fe) { + pr_err("%s: invalid arg.\n", __func__); + return NULL; + } + + priv = kzalloc(sizeof(struct cxd2880_priv), GFP_KERNEL); + if (!priv) + return NULL; + + priv->spi = cfg->spi; + priv->spi_mutex = cfg->spi_mutex; + priv->spi_device.spi = cfg->spi; + + memcpy(&fe->ops, &cxd2880_dvbt_t2_ops, + sizeof(struct dvb_frontend_ops)); + + ret = cxd2880_spi_device_initialize(&priv->spi_device, + CXD2880_SPI_MODE_0, + 55000000); + if (ret != CXD2880_RESULT_OK) { + dev_err(&priv->spi->dev, + "%s: spi_device_initialize failed. %d\n", + __func__, ret); + kfree(priv); + return NULL; + } + + ret = cxd2880_spi_device_create_spi(&priv->cxd2880_spi, + &priv->spi_device); + if (ret != CXD2880_RESULT_OK) { + dev_err(&priv->spi->dev, + "%s: spi_device_create_spi failed. %d\n", + __func__, ret); + kfree(priv); + return NULL; + } + + ret = cxd2880_io_spi_create(&priv->regio, &priv->cxd2880_spi, 0); + if (ret != CXD2880_RESULT_OK) { + dev_err(&priv->spi->dev, + "%s: io_spi_create failed. %d\n", __func__, ret); + kfree(priv); + return NULL; + } + if (priv->regio.write_reg(&priv->regio, CXD2880_IO_TGT_SYS, 0x00, 0x00) + != CXD2880_RESULT_OK) { + dev_err(&priv->spi->dev, + "%s: set bank to 0x00 failed.\n", __func__); + kfree(priv); + return NULL; + } + if (priv->regio.read_regs(&priv->regio, + CXD2880_IO_TGT_SYS, 0xFD, &data, 1) + != CXD2880_RESULT_OK) { + dev_err(&priv->spi->dev, + "%s: read chip id failed.\n", __func__); + kfree(priv); + return NULL; + } + + chipid = (enum cxd2880_tnrdmd_chip_id)data; + if ((chipid != CXD2880_TNRDMD_CHIP_ID_CXD2880_ES1_0X) && + (chipid != CXD2880_TNRDMD_CHIP_ID_CXD2880_ES1_11)) { + dev_err(&priv->spi->dev, + "%s: chip id invalid.\n", __func__); + kfree(priv); + return NULL; + } + + fe->demodulator_priv = priv; + dev_info(&priv->spi->dev, + "CXD2880 driver version: Ver %s\n", + CXD2880_TNRDMD_DRIVER_VERSION); + + return fe; +} +EXPORT_SYMBOL(cxd2880_attach); + +static struct dvb_frontend_ops cxd2880_dvbt_t2_ops = { + .info = { + .name = "Sony CXD2880", + .frequency_min = 174000000, + .frequency_max = 862000000, + .frequency_stepsize = 1000, + .caps = FE_CAN_INVERSION_AUTO | + FE_CAN_FEC_1_2 | + FE_CAN_FEC_2_3 | + FE_CAN_FEC_3_4 | + FE_CAN_FEC_4_5 | + FE_CAN_FEC_5_6 | + FE_CAN_FEC_7_8 | + FE_CAN_FEC_AUTO | + FE_CAN_QPSK | + FE_CAN_QAM_16 | + FE_CAN_QAM_32 | + FE_CAN_QAM_64 | + FE_CAN_QAM_128 | + FE_CAN_QAM_256 | + FE_CAN_QAM_AUTO | + FE_CAN_TRANSMISSION_MODE_AUTO | + FE_CAN_GUARD_INTERVAL_AUTO | + FE_CAN_2G_MODULATION | + FE_CAN_RECOVER | + FE_CAN_MUTE_TS, + }, + .delsys = { SYS_DVBT, SYS_DVBT2 }, + + .release = cxd2880_release, + .init = cxd2880_init, + .sleep = cxd2880_sleep, + .tune = cxd2880_tune, + .set_frontend = cxd2880_set_frontend, + .get_frontend = cxd2880_get_frontend, + .read_status = cxd2880_read_status, + .read_ber = cxd2880_read_ber, + .read_signal_strength = cxd2880_read_signal_strength, + .read_snr = cxd2880_read_snr, + .read_ucblocks = cxd2880_read_ucblocks, + .get_frontend_algo = cxd2880_get_frontend_algo, +}; + +MODULE_DESCRIPTION( +"Sony CXD2880 DVB-T2/T tuner + demodulator drvier"); +MODULE_AUTHOR("Sony Semiconductor Solutions Corporation"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/media/spi/Kconfig b/drivers/media/spi/Kconfig index a21f5a39a440fe64a98f6bc04879fef65d753292..b07ac86fc53c782cf0980fc86f07d09bb5df0e40 100644 --- a/drivers/media/spi/Kconfig +++ b/drivers/media/spi/Kconfig @@ -12,3 +12,17 @@ config VIDEO_GS1662 endmenu endif + +if SPI +menu "Media SPI Adapters" + +config CXD2880_SPI_DRV + tristate "Sony CXD2880 SPI support" + depends on DVB_CORE && SPI + default m if !MEDIA_SUBDRV_AUTOSELECT + help + Choose if you would like to have SPI interface support for Sony CXD2880. + +endmenu + +endif diff --git a/drivers/media/spi/Makefile b/drivers/media/spi/Makefile index ea64013d16cc7eda7424ed6684240e99b685e2cb..40e0f88d9f6c84a6ca6cfbd23d30102eabefd4e1 100644 --- a/drivers/media/spi/Makefile +++ b/drivers/media/spi/Makefile @@ -1 +1,6 @@ obj-$(CONFIG_VIDEO_GS1662) += gs1662.o +obj-$(CONFIG_CXD2880_SPI_DRV) += cxd2880-spi.o + +ccflags-y += -Idrivers/media/dvb-core +ccflags-y += -Idrivers/media/dvb-frontends +ccflags-y += -Idrivers/media/dvb-frontends/cxd2880 \ No newline at end of file diff --git a/drivers/media/spi/cxd2880-spi.c b/drivers/media/spi/cxd2880-spi.c new file mode 100644 index 0000000000000000000000000000000000000000..82e122349055be817eb74ed5bbcd7560485bc448 --- /dev/null +++ b/drivers/media/spi/cxd2880-spi.c @@ -0,0 +1,728 @@ +/* + * cxd2880-spi.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * SPI adapter + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include + +#include "dvb_demux.h" +#include "dmxdev.h" +#include "dvb_frontend.h" +#include "cxd2880.h" + +#define CXD2880_MAX_FILTER_SIZE 32 +#define BURST_WRITE_MAX 128 +#define MAX_TRANS_PACKET 300 + +struct cxd2880_ts_buf_info { + u8 read_ready; + u8 almost_full; + u8 almost_empty; + u8 overflow; + u8 underflow; + u16 packet_num; +}; + +struct cxd2880_pid_config { + u8 is_enable; + u16 pid; +}; + +struct cxd2880_pid_filter_config { + u8 is_negative; + struct cxd2880_pid_config pid_config[CXD2880_MAX_FILTER_SIZE]; +}; + +struct cxd2880_dvb_spi { + struct dvb_frontend dvb_fe; + struct dvb_adapter adapter; + struct dvb_demux demux; + struct dmxdev dmxdev; + struct dmx_frontend dmx_fe; + struct task_struct *cxd2880_ts_read_thread; + struct spi_device *spi; + struct mutex spi_mutex; /* For SPI access exclusive control */ + int feed_count; + int all_pid_feed_count; + u8 *ts_buf; + struct cxd2880_pid_filter_config filter_config; +}; + +DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); + +static int cxd2880_write_spi(struct spi_device *spi, u8 *data, u32 size) +{ + struct spi_message msg; + struct spi_transfer tx; + int ret = 0; + + if ((!spi) || (!data)) { + pr_err("%s: invalid arg\n", __func__); + return -EINVAL; + } + + memset(&tx, 0, sizeof(tx)); + tx.tx_buf = data; + tx.len = size; + + spi_message_init(&msg); + spi_message_add_tail(&tx, &msg); + ret = spi_sync(spi, &msg); + + return ret; +} + +static int cxd2880_write_reg(struct spi_device *spi, + u8 subAddress, const u8 *data, u32 size) +{ + u8 send_data[BURST_WRITE_MAX + 4]; + const u8 *write_data_top = NULL; + int ret = 0; + + if ((!spi) || (!data)) { + pr_err("%s: invalid arg\n", __func__); + return -EINVAL; + } + if (size > BURST_WRITE_MAX) { + pr_err("%s: data size > WRITE_MAX\n", __func__); + return -EINVAL; + } + + if (subAddress + size > 0x100) { + pr_err("%s: out of range\n", __func__); + return -EINVAL; + } + + send_data[0] = 0x0E; + write_data_top = data; + + while (size > 0) { + send_data[1] = subAddress; + if (size > 255) + send_data[2] = 255; + else + send_data[2] = (u8)size; + + memcpy(&send_data[3], write_data_top, send_data[2]); + + ret = cxd2880_write_spi(spi, send_data, send_data[2] + 3); + if (ret) { + dev_err(&spi->dev, "%s: write spi failed %d\n", + __func__, ret); + break; + } + subAddress += send_data[2]; + write_data_top += send_data[2]; + size -= send_data[2]; + } + + return ret; +} + +static int cxd2880_spi_read_ts(struct spi_device *spi, + u8 *read_data, + u32 packet_num) +{ + int ret = 0; + u8 data[3]; + struct spi_message message; + struct spi_transfer transfer[2]; + + if ((!spi) || (!read_data) || (!packet_num)) { + pr_err("%s: invalid arg\n", __func__); + return -EINVAL; + } + if (packet_num > 0xFFFF) { + dev_err(&spi->dev, "%s: packet num > 0xFFFF\n", __func__); + return -EINVAL; + } + + data[0] = 0x10; + data[1] = (u8)((packet_num >> 8) & 0xFF); + data[2] = (u8)(packet_num & 0xFF); + + spi_message_init(&message); + memset(transfer, 0, sizeof(transfer)); + + transfer[0].len = 3; + transfer[0].tx_buf = data; + spi_message_add_tail(&transfer[0], &message); + transfer[1].len = packet_num * 188; + transfer[1].rx_buf = read_data; + spi_message_add_tail(&transfer[1], &message); + + ret = spi_sync(spi, &message); + if (ret) + dev_err(&spi->dev, "%s: spi_write_then_read failed\n", + __func__); + + return ret; +} + +static int cxd2880_spi_read_ts_buffer_info(struct spi_device *spi, + struct cxd2880_ts_buf_info *info) +{ + u8 send_data = 0x20; + u8 recv_data[2]; + int ret = 0; + + if ((!spi) || (!info)) { + pr_err("%s: invalid arg\n", __func__); + return -EINVAL; + } + + ret = spi_write_then_read(spi, &send_data, 1, + recv_data, sizeof(recv_data)); + if (ret) + dev_err(&spi->dev, + "%s: spi_write_then_read failed\n", __func__); + + info->read_ready = (u8)((recv_data[0] & 0x80) ? 1 : 0); + info->almost_full = (u8)((recv_data[0] & 0x40) ? 1 : 0); + info->almost_empty = (u8)((recv_data[0] & 0x20) ? 1 : 0); + info->overflow = (u8)((recv_data[0] & 0x10) ? 1 : 0); + info->underflow = (u8)((recv_data[0] & 0x08) ? 1 : 0); + info->packet_num = (u16)(((recv_data[0] & 0x07) << 8) | recv_data[1]); + + return ret; +} + +static int cxd2880_spi_clear_ts_buffer(struct spi_device *spi) +{ + u8 data = 0x03; + int ret = 0; + + ret = cxd2880_write_spi(spi, &data, 1); + + if (ret) + pr_err("%s: write spi failed\n", __func__); + + return ret; +} + +static int cxd2880_set_pid_filter(struct spi_device *spi, + struct cxd2880_pid_filter_config *cfg) +{ + u8 data[65]; + + if (!spi) { + pr_err("%s: ivnalid arg\n", __func__); + return -EINVAL; + } + + data[0] = 0x00; + if (cxd2880_write_reg(spi, 0x00, &data[0], 1) != 0) + return -EIO; + if (!cfg) { + data[0] = 0x02; + if (cxd2880_write_reg(spi, 0x50, &data[0], 1) != 0) + return -EIO; + } else { + data[0] = (u8)(cfg->is_negative ? 0x01 : 0x00); + { + int i = 0; + u16 pid = 0; + + for (i = 0; i < CXD2880_MAX_FILTER_SIZE; i++) { + pid = cfg->pid_config[i].pid; + if (cfg->pid_config[i].is_enable) { + data[1 + (i * 2)] = + (u8)((u8)(pid >> 8) | 0x20); + data[2 + (i * 2)] = + (u8)(pid & 0xFF); + } else { + data[1 + (i * 2)] = 0x00; + data[2 + (i * 2)] = 0x00; + } + } + } + if (cxd2880_write_reg(spi, 0x50, data, 65) != 0) + return -EIO; + } + + return 0; +} + +static int cxd2880_update_pid_filter(struct cxd2880_dvb_spi *dvb_spi, + struct cxd2880_pid_filter_config *cfg, + bool is_all_pid_filter) +{ + int ret = 0; + + if ((!dvb_spi) || (!cfg)) { + pr_err("%s: invalid arg.\n", __func__); + return -EINVAL; + } + + mutex_lock(&dvb_spi->spi_mutex); + if (is_all_pid_filter) { + struct cxd2880_pid_filter_config tmpcfg; + + memset(&tmpcfg, 0, sizeof(tmpcfg)); + tmpcfg.is_negative = 1; + tmpcfg.pid_config[0].is_enable = 1; + tmpcfg.pid_config[0].pid = 0x1FFF; + + ret = cxd2880_set_pid_filter(dvb_spi->spi, &tmpcfg); + } else { + ret = cxd2880_set_pid_filter(dvb_spi->spi, cfg); + } + mutex_unlock(&dvb_spi->spi_mutex); + + if (ret) { + dev_err(&dvb_spi->spi->dev, + "%s: set_pid_filter failed\n", __func__); + } + + return ret; +} + +static int cxd2880_ts_read(void *arg) +{ + struct cxd2880_dvb_spi *dvb_spi = NULL; + struct cxd2880_ts_buf_info info; + struct timespec ts; + long elapsed = 0; + long starttime = 0; + u32 i; + int ret; + + dvb_spi = (struct cxd2880_dvb_spi *)arg; + if (!dvb_spi) { + pr_err("%s: invalid arg\n", __func__); + return -EINVAL; + } + + ret = cxd2880_spi_clear_ts_buffer(dvb_spi->spi); + if (ret) { + dev_err(&dvb_spi->spi->dev, + "%s: set_clear_ts_buffer failed\n", __func__); + return ret; + } + + getnstimeofday(&ts); + starttime = (ts.tv_sec * 1000) + (ts.tv_nsec / 1000000); + while (!kthread_should_stop()) { + getnstimeofday(&ts); + elapsed = + ((ts.tv_sec * 1000) + (ts.tv_nsec / 1000000)) + - starttime; + ret = cxd2880_spi_read_ts_buffer_info(dvb_spi->spi, + &info); + if (ret) { + pr_err("%s: spi_read_ts_buffer_info error\n", + __func__); + return ret; + } + + if (info.packet_num > MAX_TRANS_PACKET) { + for (i = 0; i < info.packet_num / MAX_TRANS_PACKET; + i++) { + cxd2880_spi_read_ts(dvb_spi->spi, + dvb_spi->ts_buf, + MAX_TRANS_PACKET); + dvb_dmx_swfilter(&dvb_spi->demux, + dvb_spi->ts_buf, + MAX_TRANS_PACKET * 188); + } + starttime = (ts.tv_sec * 1000) + (ts.tv_nsec / 1000000); + } else if ((info.packet_num > 0) && (elapsed >= 500)) { + cxd2880_spi_read_ts(dvb_spi->spi, + dvb_spi->ts_buf, + info.packet_num); + dvb_dmx_swfilter(&dvb_spi->demux, + dvb_spi->ts_buf, + info.packet_num * 188); + starttime = (ts.tv_sec * 1000) + (ts.tv_nsec / 1000000); + } else { + usleep_range(10000, 11000); + } + } + + return 0; +} + +static int cxd2880_start_feed(struct dvb_demux_feed *feed) +{ + int ret = 0; + int i = 0; + struct dvb_demux *demux = NULL; + struct cxd2880_dvb_spi *dvb_spi = NULL; + + if (!feed) { + pr_err("%s: invalid arg\n", __func__); + return -EINVAL; + } + + demux = feed->demux; + if (!demux) { + pr_err("%s: feed->demux is NULL\n", __func__); + return -EINVAL; + } + dvb_spi = (struct cxd2880_dvb_spi *)demux->priv; + + if (dvb_spi->feed_count == CXD2880_MAX_FILTER_SIZE) { + dev_err(&dvb_spi->spi->dev, + "%s: Exceeded maximum PID count (32).", __func__); + dev_err(&dvb_spi->spi->dev, + "Selected PID cannot be enabled.\n"); + return -EBUSY; + } + + if (feed->pid == 0x2000) { + if (dvb_spi->all_pid_feed_count == 0) { + ret = cxd2880_update_pid_filter(dvb_spi, + &dvb_spi->filter_config, + true); + if (ret) { + dev_err(&dvb_spi->spi->dev, + "%s: update pid filter failed\n", + __func__); + return ret; + } + } + dvb_spi->all_pid_feed_count++; + + dev_dbg(&dvb_spi->spi->dev, + "%s: all PID feed (count = %d)\n", + __func__, dvb_spi->all_pid_feed_count); + } else { + struct cxd2880_pid_filter_config cfgtmp; + + cfgtmp = dvb_spi->filter_config; + + for (i = 0; i < CXD2880_MAX_FILTER_SIZE; i++) { + if (cfgtmp.pid_config[i].is_enable == 0) { + cfgtmp.pid_config[i].is_enable = 1; + cfgtmp.pid_config[i].pid = feed->pid; + dev_dbg(&dvb_spi->spi->dev, + "%s: store PID %d to #%d\n", + __func__, feed->pid, i); + break; + } + } + if (i == CXD2880_MAX_FILTER_SIZE) { + dev_err(&dvb_spi->spi->dev, + "%s: PID filter is full. Assumed bug.\n", + __func__); + return -EBUSY; + } + if (!dvb_spi->all_pid_feed_count) + ret = cxd2880_update_pid_filter(dvb_spi, + &cfgtmp, + false); + if (ret) + return ret; + + dvb_spi->filter_config = cfgtmp; + } + + if (dvb_spi->feed_count == 0) { + dvb_spi->ts_buf = + kmalloc(sizeof(u8) * MAX_TRANS_PACKET * 188, + GFP_KERNEL | GFP_DMA); + if (!dvb_spi->ts_buf) { + dev_err(&dvb_spi->spi->dev, + "%s: ts buffer allocate failed\n", __func__); + memset(&dvb_spi->filter_config, 0, + sizeof(dvb_spi->filter_config)); + dvb_spi->all_pid_feed_count = 0; + return -ENOMEM; + } + dvb_spi->cxd2880_ts_read_thread = kthread_run(cxd2880_ts_read, + dvb_spi, + "cxd2880_ts_read"); + if (IS_ERR(dvb_spi->cxd2880_ts_read_thread)) { + dev_err(&dvb_spi->spi->dev, + "%s: kthread_run failed/\n", + __func__); + kfree(dvb_spi->ts_buf); + dvb_spi->ts_buf = NULL; + memset(&dvb_spi->filter_config, 0, + sizeof(dvb_spi->filter_config)); + dvb_spi->all_pid_feed_count = 0; + return PTR_ERR(dvb_spi->cxd2880_ts_read_thread); + } + } + + dvb_spi->feed_count++; + + dev_dbg(&dvb_spi->spi->dev, "%s: start feed (count %d)\n", + __func__, dvb_spi->feed_count); + return 0; +} + +static int cxd2880_stop_feed(struct dvb_demux_feed *feed) +{ + int i = 0; + int ret = 0; + struct dvb_demux *demux = NULL; + struct cxd2880_dvb_spi *dvb_spi = NULL; + + if (!feed) { + pr_err("%s: invalid arg\n", __func__); + return -EINVAL; + } + + demux = feed->demux; + if (!demux) { + pr_err("%s: feed->demux is NULL\n", __func__); + return -EINVAL; + } + dvb_spi = (struct cxd2880_dvb_spi *)demux->priv; + + if (!dvb_spi->feed_count) { + dev_warn(&dvb_spi->spi->dev, + "%s: no feed is started\n", __func__); + return -EINVAL; + } + + if (feed->pid == 0x2000) { + /* + * Special PID case. + * Number of 0x2000 feed request was stored + * in dvb_spi->all_pid_feed_count. + */ + if (dvb_spi->all_pid_feed_count <= 0) { + dev_warn(&dvb_spi->spi->dev, + "%s: PID %d not found.\n", + __func__, feed->pid); + return -EINVAL; + } + dvb_spi->all_pid_feed_count--; + } else { + struct cxd2880_pid_filter_config cfgtmp; + + cfgtmp = dvb_spi->filter_config; + + for (i = 0; i < CXD2880_MAX_FILTER_SIZE; i++) { + if (feed->pid == cfgtmp.pid_config[i].pid && + cfgtmp.pid_config[i].is_enable != 0) { + cfgtmp.pid_config[i].is_enable = 0; + cfgtmp.pid_config[i].pid = 0; + dev_dbg(&dvb_spi->spi->dev, + "%s: removed PID %d from #%d\n", + __func__, feed->pid, i); + break; + } + } + dvb_spi->filter_config = cfgtmp; + + if (i == CXD2880_MAX_FILTER_SIZE) { + dev_warn(&dvb_spi->spi->dev, "%s: PID %d not found\n", + __func__, feed->pid); + return -EINVAL; + } + } + + ret = cxd2880_update_pid_filter(dvb_spi, + &dvb_spi->filter_config, + dvb_spi->all_pid_feed_count > 0); + dvb_spi->feed_count--; + + if (dvb_spi->feed_count == 0) { + int ret_stop = 0; + + ret_stop = kthread_stop(dvb_spi->cxd2880_ts_read_thread); + if (ret_stop) { + dev_err(&dvb_spi->spi->dev, + "%s: cxd2880_ts_read thread didn't terminate normally\n", + __func__); + ret = ret_stop; + } + kfree(dvb_spi->ts_buf); + dvb_spi->ts_buf = NULL; + } + + dev_dbg(&dvb_spi->spi->dev, "%s: stop feed ok.(count %d)\n", + __func__, dvb_spi->feed_count); + + return ret; +} + +static const struct of_device_id cxd2880_spi_of_match[] = { + { .compatible = "sony,cxd2880" }, + { /* sentinel */ } +}; + +MODULE_DEVICE_TABLE(of, cxd2880_spi_of_match); + +static int +cxd2880_spi_probe(struct spi_device *spi) +{ + int ret = 0; + struct cxd2880_dvb_spi *dvb_spi = NULL; + struct cxd2880_config config; + + if (!spi) { + pr_err("%s: invalid arg.\n", __func__); + return -EINVAL; + } + + dvb_spi = kzalloc(sizeof(struct cxd2880_dvb_spi), GFP_KERNEL); + if (!dvb_spi) + return -ENOMEM; + + dvb_spi->spi = spi; + mutex_init(&dvb_spi->spi_mutex); + dev_set_drvdata(&spi->dev, dvb_spi); + config.spi = spi; + config.spi_mutex = &dvb_spi->spi_mutex; + + ret = dvb_register_adapter(&dvb_spi->adapter, + "CXD2880", + THIS_MODULE, + &spi->dev, + adapter_nr); + if (ret < 0) { + dev_err(&spi->dev, "%s: dvb_register_adapter() failed\n", + __func__); + goto fail_adapter; + } + + if (!dvb_attach(cxd2880_attach, &dvb_spi->dvb_fe, &config)) { + dev_err(&spi->dev, "%s: cxd2880_attach failed\n", __func__); + goto fail_attach; + } + + ret = dvb_register_frontend(&dvb_spi->adapter, + &dvb_spi->dvb_fe); + if (ret < 0) { + dev_err(&spi->dev, "%s: dvb_register_frontend() failed\n", + __func__); + goto fail_frontend; + } + + dvb_spi->demux.dmx.capabilities = DMX_TS_FILTERING; + dvb_spi->demux.priv = dvb_spi; + dvb_spi->demux.filternum = CXD2880_MAX_FILTER_SIZE; + dvb_spi->demux.feednum = CXD2880_MAX_FILTER_SIZE; + dvb_spi->demux.start_feed = cxd2880_start_feed; + dvb_spi->demux.stop_feed = cxd2880_stop_feed; + + ret = dvb_dmx_init(&dvb_spi->demux); + if (ret < 0) { + dev_err(&spi->dev, "%s: dvb_dmx_init() failed\n", __func__); + goto fail_dmx; + } + + dvb_spi->dmxdev.filternum = CXD2880_MAX_FILTER_SIZE; + dvb_spi->dmxdev.demux = &dvb_spi->demux.dmx; + dvb_spi->dmxdev.capabilities = 0; + ret = dvb_dmxdev_init(&dvb_spi->dmxdev, + &dvb_spi->adapter); + if (ret < 0) { + dev_err(&spi->dev, "%s: dvb_dmxdev_init() failed\n", __func__); + goto fail_dmxdev; + } + + dvb_spi->dmx_fe.source = DMX_FRONTEND_0; + ret = dvb_spi->demux.dmx.add_frontend(&dvb_spi->demux.dmx, + &dvb_spi->dmx_fe); + if (ret < 0) { + dev_err(&spi->dev, "%s: add_frontend() failed\n", __func__); + goto fail_dmx_fe; + } + + ret = dvb_spi->demux.dmx.connect_frontend(&dvb_spi->demux.dmx, + &dvb_spi->dmx_fe); + if (ret < 0) { + dev_err(&spi->dev, "%s: dvb_register_frontend() failed\n", + __func__); + goto fail_fe_conn; + } + + dev_info(&spi->dev, "Sony CXD2880 has successfully attached.\n"); + + return 0; + +fail_fe_conn: + dvb_spi->demux.dmx.remove_frontend(&dvb_spi->demux.dmx, + &dvb_spi->dmx_fe); +fail_dmx_fe: + dvb_dmxdev_release(&dvb_spi->dmxdev); +fail_dmxdev: + dvb_dmx_release(&dvb_spi->demux); +fail_dmx: + dvb_unregister_frontend(&dvb_spi->dvb_fe); +fail_frontend: + dvb_frontend_detach(&dvb_spi->dvb_fe); +fail_attach: + dvb_unregister_adapter(&dvb_spi->adapter); +fail_adapter: + kfree(dvb_spi); + return ret; +} + +static int +cxd2880_spi_remove(struct spi_device *spi) +{ + struct cxd2880_dvb_spi *dvb_spi; + + if (!spi) { + pr_err("%s: invalid arg\n", __func__); + return -EINVAL; + } + + dvb_spi = (struct cxd2880_dvb_spi *)dev_get_drvdata(&spi->dev); + + if (!dvb_spi) { + pr_err("%s: failed\n", __func__); + return -EINVAL; + } + dvb_spi->demux.dmx.remove_frontend(&dvb_spi->demux.dmx, + &dvb_spi->dmx_fe); + dvb_dmxdev_release(&dvb_spi->dmxdev); + dvb_dmx_release(&dvb_spi->demux); + dvb_unregister_frontend(&dvb_spi->dvb_fe); + dvb_frontend_detach(&dvb_spi->dvb_fe); + dvb_unregister_adapter(&dvb_spi->adapter); + + kfree(dvb_spi); + dev_info(&spi->dev, "%s: cxd2880_spi remove ok.\n", __func__); + + return 0; +} + +static const struct spi_device_id cxd2880_spi_id[] = { + { "cxd2880", 0 }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(spi, cxd2880_spi_id); + +static struct spi_driver cxd2880_spi_driver = { + .driver = { + .name = "cxd2880", + .of_match_table = cxd2880_spi_of_match, + }, + .id_table = cxd2880_spi_id, + .probe = cxd2880_spi_probe, + .remove = cxd2880_spi_remove, +}; +module_spi_driver(cxd2880_spi_driver); + +MODULE_DESCRIPTION( +"Sony CXD2880 DVB-T2/T tuner + demodulator drvier SPI adapter"); +MODULE_AUTHOR("Sony Semiconductor Solutions Corporation"); +MODULE_LICENSE("GPL v2"); From 79d8d433d4c86597de41706ef58ba6b75ff76ecf Mon Sep 17 00:00:00 2001 From: Yasunari Takiguchi Date: Thu, 22 Dec 2016 15:34:12 +0900 Subject: [PATCH 139/165] BCM2708: Add Raspberry Pi TV HAT Device Tree Support This is an EXAMPLE CODE of Raspberry Pi TV HAT device tree overlay. Although this is not a part of our release code, it has been used to verify CXD2880 device driver with TV HAT. Add the following line to /boot/config.txt to enable TV HAT: dtoverlay=rpi-tv Reboot Raspberry Pi and check the existance of /proc/device-tree/soc/spi@7e204000/cxd2880@0. If exists, the installation is successful. you should be able to find the following three files. /dev/dvb/adapter0/frontend0 /dev/dvb/adapter0/demux0 /dev/dvb/adapter0/dvr0 Signed-off-by: Yasunari Takiguchi Signed-off-by: Masayuki Yamamoto Signed-off-by: Hideki Nozawa Signed-off-by: Kota Yonezawa Signed-off-by: Toshihiko Matsumoto Signed-off-by: Satoshi Watanabe --- arch/arm/boot/dts/overlays/Makefile | 1 + arch/arm/boot/dts/overlays/README | 6 ++++++ arch/arm/boot/dts/overlays/rpi-tv-overlay.dts | 31 +++++++++++++++++++++++++++ 3 files changed, 38 insertions(+) create mode 100644 arch/arm/boot/dts/overlays/rpi-tv-overlay.dts diff --git a/arch/arm/boot/dts/overlays/Makefile b/arch/arm/boot/dts/overlays/Makefile index b64dd7ac0630b2b525809a9f5221420f34a58ac9..e2f66a55dc5afe13d690c2c17827054ac94b7168 100644 --- a/arch/arm/boot/dts/overlays/Makefile +++ b/arch/arm/boot/dts/overlays/Makefile @@ -81,6 +81,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \ rpi-ft5406.dtbo \ rpi-proto.dtbo \ rpi-sense.dtbo \ + rpi-tv.dtbo \ rra-digidac1-wm8741-audio.dtbo \ sc16is750-i2c.dtbo \ sc16is752-spi1.dtbo \ diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README index 1377e5b8e8363c3e0ede318ce54bd784cb70d4c9..e2a803e5180cf78d67b6723cfd2f6d3b2b54e53b 100644 --- a/arch/arm/boot/dts/overlays/README +++ b/arch/arm/boot/dts/overlays/README @@ -1142,6 +1142,12 @@ Load: dtoverlay=rpi-sense Params: +Name: rpi-tv +Info: Raspberry Pi TV HAT +Load: dtoverlay=rpi-tv +Params: + + Name: rra-digidac1-wm8741-audio Info: Configures the Red Rocks Audio DigiDAC1 soundcard Load: dtoverlay=rra-digidac1-wm8741-audio diff --git a/arch/arm/boot/dts/overlays/rpi-tv-overlay.dts b/arch/arm/boot/dts/overlays/rpi-tv-overlay.dts new file mode 100644 index 0000000000000000000000000000000000000000..a68f6f793d8efd8b2e2adf9f2fb6426f61ff464a --- /dev/null +++ b/arch/arm/boot/dts/overlays/rpi-tv-overlay.dts @@ -0,0 +1,31 @@ +// rpi-tv HAT + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + status = "okay"; + + spidev@0 { + status = "disabled"; + }; + + cxd2880@0 { + compatible = "sony,cxd2880"; + reg = <0>; /* CE0 */ + spi-max-frequency = <50000000>; + status = "okay"; + }; + }; + }; + +}; From 1c76190ebca5746f6e6b8e50e2cc3265d72a5c5c Mon Sep 17 00:00:00 2001 From: P33M Date: Thu, 27 Apr 2017 16:24:34 +0100 Subject: [PATCH 140/165] dwc_otg: make nak_holdoff work as intended with empty queues If URBs reading from non-periodic split endpoints were dequeued and the last transfer from the endpoint was a NAK handshake, the resulting qh->nak_frame value was stale which would result in unnecessarily long polling intervals for the first subsequent transfer with a fresh URB. Fixup qh->nak_frame in dwc_otg_hcd_urb_dequeue and also guard against a case where a single URB is submitted to the endpoint, a NAK was received on the transfer immediately prior to receiving data and the device subsequently resubmits another URB past the qh->nak_frame interval. Fixes https://github.com/raspberrypi/linux/issues/1709 --- drivers/usb/host/dwc_otg/dwc_otg_hcd.c | 4 +++- drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c | 10 ++++++---- drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c | 4 ++++ 3 files changed, 13 insertions(+), 5 deletions(-) diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c index 0eb335f4bc8ec30fa68f830fc3e382330302686e..4852d08d542f66880244d3dac3bbd35e7f4feb4e 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c @@ -616,7 +616,7 @@ int dwc_otg_hcd_urb_dequeue(dwc_otg_hcd_t * hcd, if (fiq_fsm_enable && (hcd->fiq_state->channel[n].fsm != FIQ_PASSTHROUGH)) { qh->channel->halt_status = DWC_OTG_HC_XFER_URB_DEQUEUE; qh->channel->halt_pending = 1; - hcd->fiq_state->channel[n].fsm = FIQ_DEQUEUE_ISSUED; + //hcd->fiq_state->channel[n].fsm = FIQ_DEQUEUE_ISSUED; } else { dwc_otg_hc_halt(hcd->core_if, qh->channel, DWC_OTG_HC_XFER_URB_DEQUEUE); @@ -634,6 +634,8 @@ int dwc_otg_hcd_urb_dequeue(dwc_otg_hcd_t * hcd, hcd->core_if->dma_desc_enable?"DMA ":""); if (!hcd->core_if->dma_desc_enable) { uint8_t b = urb_qtd->in_process; + if (nak_holdoff && qh->do_split && dwc_qh_is_non_per(qh)) + qh->nak_frame = 0xFFFF; dwc_otg_hcd_qtd_remove_and_free(hcd, urb_qtd, qh); if (b) { dwc_otg_hcd_qh_deactivate(hcd, qh, 0); diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c index b2618c15d1f1f0b062d4146672de5ae50e9e2d33..608e036be2c9484465ab836de70129335d3d2d96 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c @@ -2382,15 +2382,17 @@ void dwc_otg_hcd_handle_hc_fsm(dwc_otg_hcd_t *hcd, uint32_t num) fiq_print(FIQDBG_INT, hcd->fiq_state, "OUT %01d %01d ", num , st->fsm); hostchannels = hcd->available_host_channels; + if (hc->halt_pending) { + /* Dequeue: The FIQ was allowed to complete the transfer but state has been cleared. */ + release_channel(hcd, hc, NULL, hc->halt_status); + return; + } switch (st->fsm) { case FIQ_TEST: break; case FIQ_DEQUEUE_ISSUED: - /* hc_halt was called. QTD no longer exists. */ - /* TODO: for a nonperiodic split transaction, need to issue a - * CLEAR_TT_BUFFER hub command if we were in the start-split phase. - */ + /* Handled above, but keep for posterity */ release_channel(hcd, hc, NULL, hc->halt_status); break; diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c index c2dff94e8e6edd22e4427aaa1eac7aad972cb6bd..85a6d431ca54b47dc10573aa72d1ad69d06f2e36 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c @@ -793,6 +793,10 @@ void dwc_otg_hcd_qh_deactivate(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh, /* Add back to inactive non-periodic schedule. */ dwc_otg_hcd_qh_add(hcd, qh); //hcd->fiq_state->kick_np_queues = 1; + } else { + if(nak_holdoff && qh->do_split) { + qh->nak_frame = 0xFFFF; + } } } else { uint16_t frame_number = dwc_otg_hcd_get_frame_number(hcd); From dc7df0e8583992a9bfd5bf494800cbca37ac823f Mon Sep 17 00:00:00 2001 From: P33M Date: Tue, 2 May 2017 16:31:15 +0100 Subject: [PATCH 141/165] dwc_otg: fix split transaction data toggle handling around dequeues See https://github.com/raspberrypi/linux/issues/1709 Fix several issues regarding endpoint state when URBs are dequeued - If the HCD is disconnected, flush FIQ-enabled channels properly - Save the data toggle state for bulk endpoints if the last transfer from an endpoint where URBs were dequeued returned a data packet - Reset hc->start_pkt_count properly in assign_and_init_hc() --- drivers/usb/host/dwc_otg/dwc_otg_hcd.c | 10 ++++++++-- drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c | 19 ++++++++++++++++--- 2 files changed, 24 insertions(+), 5 deletions(-) diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c index 4852d08d542f66880244d3dac3bbd35e7f4feb4e..37c9d7d38287b616fcd335e80aa4110521fa98ca 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c @@ -193,8 +193,13 @@ static void kill_urbs_in_qh_list(dwc_otg_hcd_t * hcd, dwc_list_link_t * qh_list) * It is possible that the channel has already halted * but not yet been through the IRQ handler. */ - dwc_otg_hc_halt(hcd->core_if, qh->channel, - DWC_OTG_HC_XFER_URB_DEQUEUE); + if (fiq_fsm_enable && (hcd->fiq_state->channel[qh->channel->hc_num].fsm != FIQ_PASSTHROUGH)) { + qh->channel->halt_status = DWC_OTG_HC_XFER_URB_DEQUEUE; + qh->channel->halt_pending = 1; + } else { + dwc_otg_hc_halt(hcd->core_if, qh->channel, + DWC_OTG_HC_XFER_URB_DEQUEUE); + } if(microframe_schedule) hcd->available_host_channels++; qh->channel = NULL; @@ -1270,6 +1275,7 @@ static void assign_and_init_hc(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) if (qh->do_split) { uint32_t hub_addr, port_addr; hc->do_split = 1; + hc->start_pkt_count = 1; hc->xact_pos = qtd->isoc_split_pos; /* We don't need to do complete splits anymore */ // if(fiq_fsm_enable) diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c index 608e036be2c9484465ab836de70129335d3d2d96..718a1accc0c219a1764ce53d291de6a2b6f93608 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c @@ -2378,12 +2378,20 @@ void dwc_otg_hcd_handle_hc_fsm(dwc_otg_hcd_t *hcd, uint32_t num) dwc_otg_qh_t *qh = hc->qh; dwc_otg_hc_regs_t *hc_regs = hcd->core_if->host_if->hc_regs[num]; hcint_data_t hcint = hcd->fiq_state->channel[num].hcint_copy; + hctsiz_data_t hctsiz = hcd->fiq_state->channel[num].hctsiz_copy; int hostchannels = 0; fiq_print(FIQDBG_INT, hcd->fiq_state, "OUT %01d %01d ", num , st->fsm); hostchannels = hcd->available_host_channels; if (hc->halt_pending) { /* Dequeue: The FIQ was allowed to complete the transfer but state has been cleared. */ + if (st->fsm == FIQ_NP_SPLIT_DONE && hcint.b.xfercomp && qh->ep_type == UE_BULK) { + if (hctsiz.b.pid == DWC_HCTSIZ_DATA0) { + qh->data_toggle = DWC_OTG_HC_PID_DATA1; + } else { + qh->data_toggle = DWC_OTG_HC_PID_DATA0; + } + } release_channel(hcd, hc, NULL, hc->halt_status); return; } @@ -2641,10 +2649,15 @@ int32_t dwc_otg_hcd_handle_hc_n_intr(dwc_otg_hcd_t * dwc_otg_hcd, uint32_t num) hc = dwc_otg_hcd->hc_ptr_array[num]; hc_regs = dwc_otg_hcd->core_if->host_if->hc_regs[num]; if(hc->halt_status == DWC_OTG_HC_XFER_URB_DEQUEUE) { - /* We are responding to a channel disable. Driver - * state is cleared - our qtd has gone away. + /* A dequeue was issued for this transfer. Our QTD has gone away + * but in the case of a FIQ transfer, the transfer would have run + * to completion. */ - release_channel(dwc_otg_hcd, hc, NULL, hc->halt_status); + if (fiq_fsm_enable && dwc_otg_hcd->fiq_state->channel[num].fsm != FIQ_PASSTHROUGH) { + dwc_otg_hcd_handle_hc_fsm(dwc_otg_hcd, num); + } else { + release_channel(dwc_otg_hcd, hc, NULL, hc->halt_status); + } return 1; } qtd = DWC_CIRCLEQ_FIRST(&hc->qh->qtd_list); From 415467640d5ad5ec32bd1292995dd3e4c2b5e412 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Tue, 2 May 2017 16:36:05 +0100 Subject: [PATCH 142/165] vcsm: Treat EBUSY as success rather than SIGBUS Currently if two cores access the same page concurrently one will return VM_FAULT_NOPAGE and the other VM_FAULT_SIGBUS crashing the user code. Also report when mapping fails. Signed-off-by: popcornmix --- drivers/char/broadcom/vc_sm/vmcs_sm.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/char/broadcom/vc_sm/vmcs_sm.c b/drivers/char/broadcom/vc_sm/vmcs_sm.c index fd71d9fbb400d71bb8cfb8672080e7c3053e3ae9..fd2ca788dcd56b1702454d71b7bedd4203179500 100644 --- a/drivers/char/broadcom/vc_sm/vmcs_sm.c +++ b/drivers/char/broadcom/vc_sm/vmcs_sm.c @@ -1181,11 +1181,20 @@ static int vcsm_vma_fault(struct vm_fault *vmf) switch (ret) { case 0: case -ERESTARTSYS: + /* + * EBUSY is ok: this just means that another thread + * already did the job. + */ + case -EBUSY: return VM_FAULT_NOPAGE; case -ENOMEM: case -EAGAIN: + pr_err("[%s]: failed to map page pfn:%lx virt:%lx ret:%d\n", __func__, + pfn, (unsigned long)vmf->address, ret); return VM_FAULT_OOM; default: + pr_err("[%s]: failed to map page pfn:%lx virt:%lx ret:%d\n", __func__, + pfn, (unsigned long)vmf->address, ret); return VM_FAULT_SIGBUS; } } From 86773aa7d30014a4976566d01278c02ccd8de19b Mon Sep 17 00:00:00 2001 From: P33M Date: Thu, 4 May 2017 12:58:11 +0100 Subject: [PATCH 143/165] fiq_fsm: Use correct states when starting isoc OUT transfers In fiq_fsm_start_next_periodic() if an isochronous OUT transfer was selected, no regard was given as to whether this was a single-packet transfer or a multi-packet staged transfer. For single-packet transfers, this had the effect of repeatedly sending OUT packets with bogus data and lengths. Eventually if the channel was repeatedly enabled enough times, this would lock up the OTG core and no further bus transfers would happen. Set the FSM state up properly if we select a single-packet transfer. Fixes https://github.com/raspberrypi/linux/issues/1842 --- drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c b/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c index 9304279592cb5b388086ef91cb52f1e9f94868ce..208252645c09d1d17bf07673989f91b7f4b3ef7a 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c @@ -491,7 +491,10 @@ static void notrace noinline fiq_fsm_start_next_periodic(struct fiq_state *st, i if (st->channel[n].fsm == FIQ_PER_ISO_OUT_PENDING) { if (!fiq_fsm_tt_in_use(st, num_channels, n)) { fiq_print(FIQDBG_INT, st, "NEXTISO "); - st->channel[n].fsm = FIQ_PER_ISO_OUT_ACTIVE; + if (st->channel[n].nrpackets == 1) + st->channel[n].fsm = FIQ_PER_ISO_OUT_LAST; + else + st->channel[n].fsm = FIQ_PER_ISO_OUT_ACTIVE; fiq_fsm_restart_channel(st, n, 0); break; } From 79dff587b5aa18748b62070d8124dfa06f84856d Mon Sep 17 00:00:00 2001 From: popcornmix Date: Thu, 4 May 2017 17:38:22 +0100 Subject: [PATCH 144/165] bcm2708_fb: Avoid firmware mbox call in vc_mem_copy If firmware has locked up it is useful to get vcdbg log out without a firmware mbox response. Issue the mbox call at probe time instead. Signed-off-by: popcornmix --- drivers/video/fbdev/bcm2708_fb.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/drivers/video/fbdev/bcm2708_fb.c b/drivers/video/fbdev/bcm2708_fb.c index 53c5a0bdadb4be9251affdabed66305842a08e72..612293cf9f1bd93ad2f2aefdd7ca0f5eb2a412f0 100644 --- a/drivers/video/fbdev/bcm2708_fb.c +++ b/drivers/video/fbdev/bcm2708_fb.c @@ -96,6 +96,7 @@ struct bcm2708_fb { wait_queue_head_t dma_waitq; struct bcm2708_fb_stats stats; unsigned long fb_bus_address; + struct { u32 base, length; } gpu; }; #define to_bcm2708(info) container_of(info, struct bcm2708_fb, fb) @@ -472,7 +473,6 @@ static long vc_mem_copy(struct bcm2708_fb *fb, unsigned long arg) dma_addr_t bus_addr; long rc = 0; size_t offset; - struct { u32 base, length; } gpu = {}; /* restrict this to root user */ if (!uid_eq(current_euid(), GLOBAL_ROOT_UID)) @@ -491,16 +491,13 @@ static long vc_mem_copy(struct bcm2708_fb *fb, unsigned long arg) goto out; } - rc = rpi_firmware_property(fb->fw, - RPI_FIRMWARE_GET_VC_MEMORY, - &gpu, sizeof(gpu)); - if (rc != 0 || gpu.base == 0 || gpu.length == 0) { - pr_err("[%s]: Unable to determine gpu memory %ld,%x,%x)\n", __func__, rc, gpu.base, gpu.length); + if (fb->gpu.base == 0 || fb->gpu.length == 0) { + pr_err("[%s]: Unable to determine gpu memory (%x,%x)\n", __func__, fb->gpu.base, fb->gpu.length); return -EFAULT; } - if (INTALIAS_NORMAL(ioparam.src) < gpu.base || INTALIAS_NORMAL(ioparam.src) >= gpu.base + gpu.length) { - pr_err("[%s]: Invalid memory access %x (%x-%x)", __func__, INTALIAS_NORMAL(ioparam.src), gpu.base, gpu.base + gpu.length); + if (INTALIAS_NORMAL(ioparam.src) < fb->gpu.base || INTALIAS_NORMAL(ioparam.src) >= fb->gpu.base + fb->gpu.length) { + pr_err("[%s]: Invalid memory access %x (%x-%x)", __func__, INTALIAS_NORMAL(ioparam.src), fb->gpu.base, fb->gpu.base + fb->gpu.length); return -EFAULT; } @@ -869,6 +866,11 @@ static int bcm2708_fb_probe(struct platform_device *dev) fb->dev = dev; fb->fb.device = &dev->dev; + // failure here isn't fatal, but we'll fail in vc_mem_copy if fb->gpu is not valid + rpi_firmware_property(fb->fw, + RPI_FIRMWARE_GET_VC_MEMORY, + &fb->gpu, sizeof(fb->gpu)); + ret = bcm2708_fb_register(fb); if (ret == 0) { platform_set_drvdata(dev, fb); From ef237d3d91ba7ff5c991561fcb02106c3fb5ea48 Mon Sep 17 00:00:00 2001 From: Nisar Sayed Date: Tue, 9 May 2017 18:51:42 +0100 Subject: [PATCH 145/165] According to RFC 2460, IPv6 UDP calculated checksum yields a result of zero must be changed to 0xffff, however this feature is not supported by smsc95xx family hence enable csum offload only for IPv4 TCP/UDP packets. Signed-off-by: Nisar Sayed Reported-by: popcorn mix --- drivers/net/usb/smsc95xx.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index f6661e388f6e801c1b88e48a3b71407bd70cf56e..b84e98508b5d97165b68dfc30240950e78bb14c3 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -694,7 +694,7 @@ static int smsc95xx_set_features(struct net_device *netdev, if (ret < 0) return ret; - if (features & NETIF_F_HW_CSUM) + if (features & NETIF_F_IP_CSUM) read_buf |= Tx_COE_EN_; else read_buf &= ~Tx_COE_EN_; @@ -1342,12 +1342,16 @@ static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf) spin_lock_init(&pdata->mac_cr_lock); + /* RFC 2460, IPv6 UDP calculated checksum yields a result of zero must be + * changed to 0xffff, this feature is not supported by smsc95xx family, + * hence enable csum offload only for IPv4 TCP/UDP packets. + */ if (DEFAULT_TX_CSUM_ENABLE) - dev->net->features |= NETIF_F_HW_CSUM; + dev->net->features |= NETIF_F_IP_CSUM; if (DEFAULT_RX_CSUM_ENABLE) dev->net->features |= NETIF_F_RXCSUM; - dev->net->hw_features = NETIF_F_HW_CSUM | NETIF_F_RXCSUM; + dev->net->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM; smsc95xx_init_mac_address(dev); From cbab0a0f8479d691dad18ad093b830773940a53e Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Wed, 14 Sep 2016 08:39:33 +0100 Subject: [PATCH 146/165] drm/vc4: Add a mode for using the closed firmware for display. Signed-off-by: Eric Anholt --- drivers/gpu/drm/vc4/Makefile | 1 + drivers/gpu/drm/vc4/vc4_crtc.c | 13 + drivers/gpu/drm/vc4/vc4_drv.c | 1 + drivers/gpu/drm/vc4/vc4_drv.h | 7 + drivers/gpu/drm/vc4/vc4_firmware_kms.c | 660 +++++++++++++++++++++++++++++++++ 5 files changed, 682 insertions(+) create mode 100644 drivers/gpu/drm/vc4/vc4_firmware_kms.c diff --git a/drivers/gpu/drm/vc4/Makefile b/drivers/gpu/drm/vc4/Makefile index 61f45d122bd0f73b04d4e6aefd0b7ec6f607d04e..897f658bee287f84f7dde8dca43090ad5541495b 100644 --- a/drivers/gpu/drm/vc4/Makefile +++ b/drivers/gpu/drm/vc4/Makefile @@ -9,6 +9,7 @@ vc4-y := \ vc4_drv.o \ vc4_dpi.o \ vc4_dsi.o \ + vc4_firmware_kms.o \ vc4_kms.o \ vc4_gem.o \ vc4_hdmi.o \ diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c index 9fcf05ca492b0c065a323f69be32ed3cc93b630f..0ed39e6b9bae3d5dd3d578a3e4400f12e8a56a53 100644 --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -163,6 +163,9 @@ int vc4_crtc_get_scanoutpos(struct drm_device *dev, unsigned int crtc_id, int vblank_lines; int ret = 0; + if (vc4->firmware_kms) + return 0; + /* preempt_disable_rt() should go right here in PREEMPT_RT patchset. */ /* Get optional system timestamp before query. */ @@ -659,6 +662,11 @@ int vc4_enable_vblank(struct drm_device *dev, unsigned int crtc_id) struct drm_crtc *crtc = drm_crtc_from_index(dev, crtc_id); struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); + if (vc4->firmware_kms) { + /* XXX: Can we mask the SMI interrupt? */ + return 0; + } + CRTC_WRITE(PV_INTEN, PV_INT_VFP_START); return 0; @@ -669,6 +677,11 @@ void vc4_disable_vblank(struct drm_device *dev, unsigned int crtc_id) struct drm_crtc *crtc = drm_crtc_from_index(dev, crtc_id); struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); + if (vc4->firmware_kms) { + /* XXX: Can we mask the SMI interrupt? */ + return; + } + CRTC_WRITE(PV_INTEN, 0); } diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c index a459745e96f7bb1f81b24077042da4c0c0063525..6661655bd19950e3d530ed6ae826af424fa23466 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.c +++ b/drivers/gpu/drm/vc4/vc4_drv.c @@ -298,6 +298,7 @@ static struct platform_driver *const component_drivers[] = { &vc4_dsi_driver, &vc4_hvs_driver, &vc4_crtc_driver, + &vc4_firmware_kms_driver, &vc4_v3d_driver, }; diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h index 0e59f3ee1b8344505a8f9d1e3abd478cee3dd37a..5042d5e024ce73b4b83f2c8fda80402300441f27 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.h +++ b/drivers/gpu/drm/vc4/vc4_drv.h @@ -14,6 +14,9 @@ struct vc4_dev { struct drm_device *dev; + bool firmware_kms; + struct rpi_firmware *firmware; + struct vc4_hdmi *hdmi; struct vc4_hvs *hvs; struct vc4_v3d *v3d; @@ -470,6 +473,10 @@ int vc4_dpi_debugfs_regs(struct seq_file *m, void *unused); extern struct platform_driver vc4_dsi_driver; int vc4_dsi_debugfs_regs(struct seq_file *m, void *unused); +/* vc4_firmware_kms.c */ +extern struct platform_driver vc4_firmware_kms_driver; +void vc4_fkms_cancel_page_flip(struct drm_crtc *crtc, struct drm_file *file); + /* vc4_gem.c */ void vc4_gem_init(struct drm_device *dev); void vc4_gem_destroy(struct drm_device *dev); diff --git a/drivers/gpu/drm/vc4/vc4_firmware_kms.c b/drivers/gpu/drm/vc4/vc4_firmware_kms.c new file mode 100644 index 0000000000000000000000000000000000000000..d18a1dae51a2275846c9826b5bf1ba57ae97b55c --- /dev/null +++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c @@ -0,0 +1,660 @@ +/* + * Copyright (C) 2016 Broadcom + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/** + * DOC: VC4 firmware KMS module. + * + * As a hack to get us from the current closed source driver world + * toward a totally open stack, implement KMS on top of the Raspberry + * Pi's firmware display stack. + */ + +#include "drm_atomic.h" +#include "drm_atomic_helper.h" +#include "drm_plane_helper.h" +#include "drm_crtc_helper.h" +#include "linux/clk.h" +#include "linux/debugfs.h" +#include "drm_fb_cma_helper.h" +#include "linux/component.h" +#include "linux/of_device.h" +#include "vc4_drv.h" +#include "vc4_regs.h" +#include + +/* The firmware delivers a vblank interrupt to us through the SMI + * hardware, which has only this one register. + */ +#define SMICS 0x0 +#define SMICS_INTERRUPTS (BIT(9) | BIT(10) | BIT(11)) + +struct vc4_crtc { + struct drm_crtc base; + struct drm_encoder *encoder; + struct drm_connector *connector; + void __iomem *regs; + + struct drm_pending_vblank_event *event; +}; + +static inline struct vc4_crtc *to_vc4_crtc(struct drm_crtc *crtc) +{ + return container_of(crtc, struct vc4_crtc, base); +} + +struct vc4_fkms_encoder { + struct drm_encoder base; +}; + +static inline struct vc4_fkms_encoder * +to_vc4_fkms_encoder(struct drm_encoder *encoder) +{ + return container_of(encoder, struct vc4_fkms_encoder, base); +} + +/* VC4 FKMS connector KMS struct */ +struct vc4_fkms_connector { + struct drm_connector base; + + /* Since the connector is attached to just the one encoder, + * this is the reference to it so we can do the best_encoder() + * hook. + */ + struct drm_encoder *encoder; +}; + +static inline struct vc4_fkms_connector * +to_vc4_fkms_connector(struct drm_connector *connector) +{ + return container_of(connector, struct vc4_fkms_connector, base); +} + +/* Firmware's structure for making an FB mbox call. */ +struct fbinfo_s { + u32 xres, yres, xres_virtual, yres_virtual; + u32 pitch, bpp; + u32 xoffset, yoffset; + u32 base; + u32 screen_size; + u16 cmap[256]; +}; + +struct vc4_fkms_plane { + struct drm_plane base; + struct fbinfo_s *fbinfo; + dma_addr_t fbinfo_bus_addr; + u32 pitch; +}; + +static inline struct vc4_fkms_plane *to_vc4_fkms_plane(struct drm_plane *plane) +{ + return (struct vc4_fkms_plane *)plane; +} + +/* Turns the display on/off. */ +static int vc4_plane_set_primary_blank(struct drm_plane *plane, bool blank) +{ + struct vc4_dev *vc4 = to_vc4_dev(plane->dev); + + u32 packet = blank; + return rpi_firmware_property(vc4->firmware, + RPI_FIRMWARE_FRAMEBUFFER_BLANK, + &packet, sizeof(packet)); +} + +static void vc4_primary_plane_atomic_update(struct drm_plane *plane, + struct drm_plane_state *old_state) +{ + struct vc4_dev *vc4 = to_vc4_dev(plane->dev); + struct vc4_fkms_plane *vc4_plane = to_vc4_fkms_plane(plane); + struct drm_plane_state *state = plane->state; + struct drm_framebuffer *fb = state->fb; + struct drm_gem_cma_object *bo = drm_fb_cma_get_gem_obj(fb, 0); + volatile struct fbinfo_s *fbinfo = vc4_plane->fbinfo; + u32 bpp = 32; + int ret; + + vc4_plane_set_primary_blank(plane, false); + + fbinfo->xres = state->crtc_w; + fbinfo->yres = state->crtc_h; + fbinfo->xres_virtual = state->crtc_w; + fbinfo->yres_virtual = state->crtc_h; + fbinfo->bpp = bpp; + fbinfo->xoffset = state->crtc_x; + fbinfo->yoffset = state->crtc_y; + fbinfo->base = bo->paddr + fb->offsets[0]; + fbinfo->pitch = fb->pitches[0]; + /* A bug in the firmware makes it so that if the fb->base is + * set to nonzero, the configured pitch gets overwritten with + * the previous pitch. So, to get the configured pitch + * recomputed, we have to make it allocate itself a new buffer + * in VC memory, first. + */ + if (vc4_plane->pitch != fb->pitches[0]) { + u32 saved_base = fbinfo->base; + fbinfo->base = 0; + + ret = rpi_firmware_transaction(vc4->firmware, + RPI_FIRMWARE_CHAN_FB, + vc4_plane->fbinfo_bus_addr); + fbinfo->base = saved_base; + + vc4_plane->pitch = fbinfo->pitch; + WARN_ON_ONCE(vc4_plane->pitch != fb->pitches[0]); + } + + ret = rpi_firmware_transaction(vc4->firmware, + RPI_FIRMWARE_CHAN_FB, + vc4_plane->fbinfo_bus_addr); + WARN_ON_ONCE(fbinfo->pitch != fb->pitches[0]); + WARN_ON_ONCE(fbinfo->base != bo->paddr + fb->offsets[0]); +} + +static void vc4_primary_plane_atomic_disable(struct drm_plane *plane, + struct drm_plane_state *old_state) +{ + vc4_plane_set_primary_blank(plane, true); +} + +static void vc4_cursor_plane_atomic_update(struct drm_plane *plane, + struct drm_plane_state *old_state) +{ + struct vc4_dev *vc4 = to_vc4_dev(plane->dev); + struct drm_plane_state *state = plane->state; + struct drm_framebuffer *fb = state->fb; + struct drm_gem_cma_object *bo = drm_fb_cma_get_gem_obj(fb, 0); + int ret; + u32 packet_state[] = { true, state->crtc_x, state->crtc_y, 0 }; + u32 packet_info[] = { state->crtc_w, state->crtc_h, + 0, /* unused */ + bo->paddr + fb->offsets[0], + 0, 0, /* hotx, hoty */}; + WARN_ON_ONCE(fb->pitches[0] != state->crtc_w * 4); + WARN_ON_ONCE(fb->bits_per_pixel != 32); + + ret = rpi_firmware_property(vc4->firmware, + RPI_FIRMWARE_SET_CURSOR_STATE, + &packet_state, + sizeof(packet_state)); + if (ret || packet_state[0] != 0) + DRM_ERROR("Failed to set cursor state: 0x%08x\n", packet_state[0]); + + ret = rpi_firmware_property(vc4->firmware, + RPI_FIRMWARE_SET_CURSOR_INFO, + &packet_info, + sizeof(packet_info)); + if (ret || packet_info[0] != 0) + DRM_ERROR("Failed to set cursor info: 0x%08x\n", packet_info[0]); +} + +static void vc4_cursor_plane_atomic_disable(struct drm_plane *plane, + struct drm_plane_state *old_state) +{ + struct vc4_dev *vc4 = to_vc4_dev(plane->dev); + u32 packet_state[] = { false, 0, 0, 0 }; + int ret; + + ret = rpi_firmware_property(vc4->firmware, + RPI_FIRMWARE_SET_CURSOR_STATE, + &packet_state, + sizeof(packet_state)); + if (ret || packet_state[0] != 0) + DRM_ERROR("Failed to set cursor state: 0x%08x\n", packet_state[0]); +} + +static int vc4_plane_atomic_check(struct drm_plane *plane, + struct drm_plane_state *state) +{ + return 0; +} + +static void vc4_plane_destroy(struct drm_plane *plane) +{ + drm_plane_helper_disable(plane); + drm_plane_cleanup(plane); +} + +static const struct drm_plane_funcs vc4_plane_funcs = { + .update_plane = drm_atomic_helper_update_plane, + .disable_plane = drm_atomic_helper_disable_plane, + .destroy = vc4_plane_destroy, + .set_property = NULL, + .reset = drm_atomic_helper_plane_reset, + .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, +}; + +static const struct drm_plane_helper_funcs vc4_primary_plane_helper_funcs = { + .prepare_fb = NULL, + .cleanup_fb = NULL, + .atomic_check = vc4_plane_atomic_check, + .atomic_update = vc4_primary_plane_atomic_update, + .atomic_disable = vc4_primary_plane_atomic_disable, +}; + +static const struct drm_plane_helper_funcs vc4_cursor_plane_helper_funcs = { + .prepare_fb = NULL, + .cleanup_fb = NULL, + .atomic_check = vc4_plane_atomic_check, + .atomic_update = vc4_cursor_plane_atomic_update, + .atomic_disable = vc4_cursor_plane_atomic_disable, +}; + +static struct drm_plane *vc4_fkms_plane_init(struct drm_device *dev, + enum drm_plane_type type) +{ + struct drm_plane *plane = NULL; + struct vc4_fkms_plane *vc4_plane; + u32 xrgb8888 = DRM_FORMAT_XRGB8888; + u32 argb8888 = DRM_FORMAT_ARGB8888; + int ret = 0; + bool primary = (type == DRM_PLANE_TYPE_PRIMARY); + + vc4_plane = devm_kzalloc(dev->dev, sizeof(*vc4_plane), + GFP_KERNEL); + if (!vc4_plane) { + ret = -ENOMEM; + goto fail; + } + + plane = &vc4_plane->base; + ret = drm_universal_plane_init(dev, plane, 0xff, + &vc4_plane_funcs, + primary ? &xrgb8888 : &argb8888, 1, + type, NULL); + + if (type == DRM_PLANE_TYPE_PRIMARY) { + vc4_plane->fbinfo = + dma_alloc_coherent(dev->dev, + sizeof(*vc4_plane->fbinfo), + &vc4_plane->fbinfo_bus_addr, + GFP_KERNEL); + memset(vc4_plane->fbinfo, 0, sizeof(*vc4_plane->fbinfo)); + + drm_plane_helper_add(plane, &vc4_primary_plane_helper_funcs); + } else { + drm_plane_helper_add(plane, &vc4_cursor_plane_helper_funcs); + } + + return plane; +fail: + if (plane) + vc4_plane_destroy(plane); + + return ERR_PTR(ret); +} + +static void vc4_crtc_mode_set_nofb(struct drm_crtc *crtc) +{ + /* Everyting is handled in the planes. */ +} + +static void vc4_crtc_disable(struct drm_crtc *crtc) +{ +} + +static void vc4_crtc_enable(struct drm_crtc *crtc) +{ +} + +static int vc4_crtc_atomic_check(struct drm_crtc *crtc, + struct drm_crtc_state *state) +{ + return 0; +} + +static void vc4_crtc_atomic_flush(struct drm_crtc *crtc, + struct drm_crtc_state *old_state) +{ +} + +static void vc4_crtc_handle_page_flip(struct vc4_crtc *vc4_crtc) +{ + struct drm_crtc *crtc = &vc4_crtc->base; + struct drm_device *dev = crtc->dev; + unsigned long flags; + + spin_lock_irqsave(&dev->event_lock, flags); + if (vc4_crtc->event) { + drm_crtc_send_vblank_event(crtc, vc4_crtc->event); + vc4_crtc->event = NULL; + drm_crtc_vblank_put(crtc); + } + spin_unlock_irqrestore(&dev->event_lock, flags); +} + +static irqreturn_t vc4_crtc_irq_handler(int irq, void *data) +{ + struct vc4_crtc *vc4_crtc = data; + u32 stat = readl(vc4_crtc->regs + SMICS); + irqreturn_t ret = IRQ_NONE; + + if (stat & SMICS_INTERRUPTS) { + writel(0, vc4_crtc->regs + SMICS); + drm_crtc_handle_vblank(&vc4_crtc->base); + vc4_crtc_handle_page_flip(vc4_crtc); + ret = IRQ_HANDLED; + } + + return ret; +} + +static int vc4_page_flip(struct drm_crtc *crtc, + struct drm_framebuffer *fb, + struct drm_pending_vblank_event *event, + uint32_t flags) +{ + if (flags & DRM_MODE_PAGE_FLIP_ASYNC) { + DRM_ERROR("Async flips aren't allowed\n"); + return -EINVAL; + } + + return drm_atomic_helper_page_flip(crtc, fb, event, flags); +} + +static const struct drm_crtc_funcs vc4_crtc_funcs = { + .set_config = drm_atomic_helper_set_config, + .destroy = drm_crtc_cleanup, + .page_flip = vc4_page_flip, + .set_property = NULL, + .cursor_set = NULL, /* handled by drm_mode_cursor_universal */ + .cursor_move = NULL, /* handled by drm_mode_cursor_universal */ + .reset = drm_atomic_helper_crtc_reset, + .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, +}; + +static const struct drm_crtc_helper_funcs vc4_crtc_helper_funcs = { + .mode_set_nofb = vc4_crtc_mode_set_nofb, + .disable = vc4_crtc_disable, + .enable = vc4_crtc_enable, + .atomic_check = vc4_crtc_atomic_check, + .atomic_flush = vc4_crtc_atomic_flush, +}; + +/* Frees the page flip event when the DRM device is closed with the + * event still outstanding. + */ +void vc4_fkms_cancel_page_flip(struct drm_crtc *crtc, struct drm_file *file) +{ + struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); + struct drm_device *dev = crtc->dev; + unsigned long flags; + + spin_lock_irqsave(&dev->event_lock, flags); + + if (vc4_crtc->event && vc4_crtc->event->base.file_priv == file) { + kfree(&vc4_crtc->event->base); + drm_crtc_vblank_put(crtc); + vc4_crtc->event = NULL; + } + + spin_unlock_irqrestore(&dev->event_lock, flags); +} + +static const struct of_device_id vc4_firmware_kms_dt_match[] = { + { .compatible = "raspberrypi,rpi-firmware-kms" }, + {} +}; + +static enum drm_connector_status +vc4_fkms_connector_detect(struct drm_connector *connector, bool force) +{ + return connector_status_connected; +} + +static int vc4_fkms_connector_get_modes(struct drm_connector *connector) +{ + struct drm_device *dev = connector->dev; + struct vc4_dev *vc4 = to_vc4_dev(dev); + u32 wh[2] = {0, 0}; + int ret; + struct drm_display_mode *mode; + + ret = rpi_firmware_property(vc4->firmware, + RPI_FIRMWARE_FRAMEBUFFER_GET_PHYSICAL_WIDTH_HEIGHT, + &wh, sizeof(wh)); + if (ret) { + DRM_ERROR("Failed to get screen size: %d (0x%08x 0x%08x)\n", + ret, wh[0], wh[1]); + return 0; + } + + mode = drm_cvt_mode(dev, wh[0], wh[1], 60 /* vrefresh */, + 0, 0, false); + drm_mode_probed_add(connector, mode); + + return 1; +} + +static struct drm_encoder * +vc4_fkms_connector_best_encoder(struct drm_connector *connector) +{ + struct vc4_fkms_connector *fkms_connector = + to_vc4_fkms_connector(connector); + return fkms_connector->encoder; +} + +static void vc4_fkms_connector_destroy(struct drm_connector *connector) +{ + drm_connector_unregister(connector); + drm_connector_cleanup(connector); +} + +static const struct drm_connector_funcs vc4_fkms_connector_funcs = { + .dpms = drm_atomic_helper_connector_dpms, + .detect = vc4_fkms_connector_detect, + .fill_modes = drm_helper_probe_single_connector_modes, + .destroy = vc4_fkms_connector_destroy, + .reset = drm_atomic_helper_connector_reset, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, +}; + +static const struct drm_connector_helper_funcs vc4_fkms_connector_helper_funcs = { + .get_modes = vc4_fkms_connector_get_modes, + .best_encoder = vc4_fkms_connector_best_encoder, +}; + +static struct drm_connector *vc4_fkms_connector_init(struct drm_device *dev, + struct drm_encoder *encoder) +{ + struct drm_connector *connector = NULL; + struct vc4_fkms_connector *fkms_connector; + int ret = 0; + + fkms_connector = devm_kzalloc(dev->dev, sizeof(*fkms_connector), + GFP_KERNEL); + if (!fkms_connector) { + ret = -ENOMEM; + goto fail; + } + connector = &fkms_connector->base; + + fkms_connector->encoder = encoder; + + drm_connector_init(dev, connector, &vc4_fkms_connector_funcs, + DRM_MODE_CONNECTOR_HDMIA); + drm_connector_helper_add(connector, &vc4_fkms_connector_helper_funcs); + + connector->polled = (DRM_CONNECTOR_POLL_CONNECT | + DRM_CONNECTOR_POLL_DISCONNECT); + + connector->interlace_allowed = 0; + connector->doublescan_allowed = 0; + + drm_mode_connector_attach_encoder(connector, encoder); + + return connector; + + fail: + if (connector) + vc4_fkms_connector_destroy(connector); + + return ERR_PTR(ret); +} + +static void vc4_fkms_encoder_destroy(struct drm_encoder *encoder) +{ + drm_encoder_cleanup(encoder); +} + +static const struct drm_encoder_funcs vc4_fkms_encoder_funcs = { + .destroy = vc4_fkms_encoder_destroy, +}; + +static void vc4_fkms_encoder_enable(struct drm_encoder *encoder) +{ +} + +static void vc4_fkms_encoder_disable(struct drm_encoder *encoder) +{ +} + +static const struct drm_encoder_helper_funcs vc4_fkms_encoder_helper_funcs = { + .enable = vc4_fkms_encoder_enable, + .disable = vc4_fkms_encoder_disable, +}; + +static int vc4_fkms_bind(struct device *dev, struct device *master, void *data) +{ + struct platform_device *pdev = to_platform_device(dev); + struct drm_device *drm = dev_get_drvdata(master); + struct vc4_dev *vc4 = to_vc4_dev(drm); + struct vc4_crtc *vc4_crtc; + struct vc4_fkms_encoder *vc4_encoder; + struct drm_crtc *crtc; + struct drm_plane *primary_plane, *cursor_plane, *destroy_plane, *temp; + struct device_node *firmware_node; + int ret; + + vc4->firmware_kms = true; + + vc4_crtc = devm_kzalloc(dev, sizeof(*vc4_crtc), GFP_KERNEL); + if (!vc4_crtc) + return -ENOMEM; + crtc = &vc4_crtc->base; + + firmware_node = of_parse_phandle(dev->of_node, "brcm,firmware", 0); + vc4->firmware = rpi_firmware_get(firmware_node); + if (!vc4->firmware) { + DRM_DEBUG("Failed to get Raspberry Pi firmware reference.\n"); + return -EPROBE_DEFER; + } + of_node_put(firmware_node); + + /* Map the SMI interrupt reg */ + vc4_crtc->regs = vc4_ioremap_regs(pdev, 0); + if (IS_ERR(vc4_crtc->regs)) + return PTR_ERR(vc4_crtc->regs); + + /* For now, we create just the primary and the legacy cursor + * planes. We should be able to stack more planes on easily, + * but to do that we would need to compute the bandwidth + * requirement of the plane configuration, and reject ones + * that will take too much. + */ + primary_plane = vc4_fkms_plane_init(drm, DRM_PLANE_TYPE_PRIMARY); + if (IS_ERR(primary_plane)) { + dev_err(dev, "failed to construct primary plane\n"); + ret = PTR_ERR(primary_plane); + goto err; + } + + cursor_plane = vc4_fkms_plane_init(drm, DRM_PLANE_TYPE_CURSOR); + if (IS_ERR(cursor_plane)) { + dev_err(dev, "failed to construct cursor plane\n"); + ret = PTR_ERR(cursor_plane); + goto err; + } + + drm_crtc_init_with_planes(drm, crtc, primary_plane, cursor_plane, + &vc4_crtc_funcs, NULL); + drm_crtc_helper_add(crtc, &vc4_crtc_helper_funcs); + primary_plane->crtc = crtc; + cursor_plane->crtc = crtc; + vc4->crtc[drm_crtc_index(crtc)] = vc4_crtc; + + vc4_encoder = devm_kzalloc(dev, sizeof(*vc4_encoder), GFP_KERNEL); + if (!vc4_encoder) + return -ENOMEM; + vc4_crtc->encoder = &vc4_encoder->base; + vc4_encoder->base.possible_crtcs |= drm_crtc_mask(crtc) ; + drm_encoder_init(drm, &vc4_encoder->base, &vc4_fkms_encoder_funcs, + DRM_MODE_ENCODER_TMDS, NULL); + drm_encoder_helper_add(&vc4_encoder->base, + &vc4_fkms_encoder_helper_funcs); + + vc4_crtc->connector = vc4_fkms_connector_init(drm, &vc4_encoder->base); + if (IS_ERR(vc4_crtc->connector)) { + ret = PTR_ERR(vc4_crtc->connector); + goto err_destroy_encoder; + } + + writel(0, vc4_crtc->regs + SMICS); + ret = devm_request_irq(dev, platform_get_irq(pdev, 0), + vc4_crtc_irq_handler, 0, "vc4 firmware kms", + vc4_crtc); + if (ret) + goto err_destroy_connector; + + platform_set_drvdata(pdev, vc4_crtc); + + return 0; + +err_destroy_connector: + vc4_fkms_connector_destroy(vc4_crtc->connector); +err_destroy_encoder: + vc4_fkms_encoder_destroy(vc4_crtc->encoder); + list_for_each_entry_safe(destroy_plane, temp, + &drm->mode_config.plane_list, head) { + if (destroy_plane->possible_crtcs == 1 << drm_crtc_index(crtc)) + destroy_plane->funcs->destroy(destroy_plane); + } +err: + return ret; +} + +static void vc4_fkms_unbind(struct device *dev, struct device *master, + void *data) +{ + struct platform_device *pdev = to_platform_device(dev); + struct vc4_crtc *vc4_crtc = dev_get_drvdata(dev); + + vc4_fkms_connector_destroy(vc4_crtc->connector); + vc4_fkms_encoder_destroy(vc4_crtc->encoder); + drm_crtc_cleanup(&vc4_crtc->base); + + platform_set_drvdata(pdev, NULL); +} + +static const struct component_ops vc4_fkms_ops = { + .bind = vc4_fkms_bind, + .unbind = vc4_fkms_unbind, +}; + +static int vc4_fkms_probe(struct platform_device *pdev) +{ + return component_add(&pdev->dev, &vc4_fkms_ops); +} + +static int vc4_fkms_remove(struct platform_device *pdev) +{ + component_del(&pdev->dev, &vc4_fkms_ops); + return 0; +} + +struct platform_driver vc4_firmware_kms_driver = { + .probe = vc4_fkms_probe, + .remove = vc4_fkms_remove, + .driver = { + .name = "vc4_firmware_kms", + .of_match_table = vc4_firmware_kms_dt_match, + }, +}; From 9ab72e1fe7d0178f89b6e5f2e1d28a22fe2dead9 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Wed, 1 Feb 2017 17:09:18 -0800 Subject: [PATCH 147/165] drm/vc4: Name the primary and cursor planes in fkms. This makes debugging nicer, compared to trying to remember what the IDs are. Signed-off-by: Eric Anholt --- drivers/gpu/drm/vc4/vc4_firmware_kms.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vc4/vc4_firmware_kms.c b/drivers/gpu/drm/vc4/vc4_firmware_kms.c index d18a1dae51a2275846c9826b5bf1ba57ae97b55c..e49ce68b607a7ffc2329e3235362f3bc21ed5cbb 100644 --- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c +++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c @@ -267,7 +267,7 @@ static struct drm_plane *vc4_fkms_plane_init(struct drm_device *dev, ret = drm_universal_plane_init(dev, plane, 0xff, &vc4_plane_funcs, primary ? &xrgb8888 : &argb8888, 1, - type, NULL); + type, primary ? "primary" : "cursor"); if (type == DRM_PLANE_TYPE_PRIMARY) { vc4_plane->fbinfo = From 8f4a88cdf13682bb527a8a4348b45af537723ed9 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Wed, 1 Feb 2017 17:10:09 -0800 Subject: [PATCH 148/165] drm/vc4: Add DRM_DEBUG_ATOMIC for the insides of fkms. Trying to debug weston on fkms involved figuring out what calls I was making to the firmware. Signed-off-by: Eric Anholt --- drivers/gpu/drm/vc4/vc4_firmware_kms.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/drivers/gpu/drm/vc4/vc4_firmware_kms.c b/drivers/gpu/drm/vc4/vc4_firmware_kms.c index e49ce68b607a7ffc2329e3235362f3bc21ed5cbb..dbf065677202fbebf8e3a0cffbe880aa42daef3f 100644 --- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c +++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c @@ -102,6 +102,11 @@ static int vc4_plane_set_primary_blank(struct drm_plane *plane, bool blank) struct vc4_dev *vc4 = to_vc4_dev(plane->dev); u32 packet = blank; + + DRM_DEBUG_ATOMIC("[PLANE:%d:%s] primary plane %s", + plane->base.id, plane->name, + blank ? "blank" : "unblank"); + return rpi_firmware_property(vc4->firmware, RPI_FIRMWARE_FRAMEBUFFER_BLANK, &packet, sizeof(packet)); @@ -149,6 +154,16 @@ static void vc4_primary_plane_atomic_update(struct drm_plane *plane, WARN_ON_ONCE(vc4_plane->pitch != fb->pitches[0]); } + DRM_DEBUG_ATOMIC("[PLANE:%d:%s] primary update %dx%d@%d +%d,%d 0x%08x/%d\n", + plane->base.id, plane->name, + state->crtc_w, + state->crtc_h, + bpp, + state->crtc_x, + state->crtc_y, + bo->paddr + fb->offsets[0], + fb->pitches[0]); + ret = rpi_firmware_transaction(vc4->firmware, RPI_FIRMWARE_CHAN_FB, vc4_plane->fbinfo_bus_addr); @@ -178,6 +193,15 @@ static void vc4_cursor_plane_atomic_update(struct drm_plane *plane, WARN_ON_ONCE(fb->pitches[0] != state->crtc_w * 4); WARN_ON_ONCE(fb->bits_per_pixel != 32); + DRM_DEBUG_ATOMIC("[PLANE:%d:%s] update %dx%d cursor at %d,%d (0x%08x/%d)", + plane->base.id, plane->name, + state->crtc_w, + state->crtc_h, + state->crtc_x, + state->crtc_y, + bo->paddr + fb->offsets[0], + fb->pitches[0]); + ret = rpi_firmware_property(vc4->firmware, RPI_FIRMWARE_SET_CURSOR_STATE, &packet_state, @@ -200,6 +224,8 @@ static void vc4_cursor_plane_atomic_disable(struct drm_plane *plane, u32 packet_state[] = { false, 0, 0, 0 }; int ret; + DRM_DEBUG_ATOMIC("[PLANE:%d:%s] disabling cursor", plane->base.id, plane->name); + ret = rpi_firmware_property(vc4->firmware, RPI_FIRMWARE_SET_CURSOR_STATE, &packet_state, From eb8450cbd90b185b2c8454b9b169af0ae518b996 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Thu, 2 Feb 2017 09:42:18 -0800 Subject: [PATCH 149/165] drm/vc4: Fix sending of page flip completion events in FKMS mode. In the rewrite of vc4_crtc.c for fkms, I dropped the part of the CRTC's atomic flush handler that moved the completion event from the proposed atomic state change to the CRTC's current state. That meant that when full screen pageflipping happened (glxgears -fullscreen in X, compton, por weston), the app would end up blocked firever waiting to draw its next frame. Signed-off-by: Eric Anholt --- drivers/gpu/drm/vc4/vc4_firmware_kms.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/gpu/drm/vc4/vc4_firmware_kms.c b/drivers/gpu/drm/vc4/vc4_firmware_kms.c index dbf065677202fbebf8e3a0cffbe880aa42daef3f..da818a207bfa639b8cea48d94bcf4566f97db816 100644 --- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c +++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c @@ -338,6 +338,21 @@ static int vc4_crtc_atomic_check(struct drm_crtc *crtc, static void vc4_crtc_atomic_flush(struct drm_crtc *crtc, struct drm_crtc_state *old_state) { + struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); + struct drm_device *dev = crtc->dev; + + if (crtc->state->event) { + unsigned long flags; + + crtc->state->event->pipe = drm_crtc_index(crtc); + + WARN_ON(drm_crtc_vblank_get(crtc) != 0); + + spin_lock_irqsave(&dev->event_lock, flags); + vc4_crtc->event = crtc->state->event; + crtc->state->event = NULL; + spin_unlock_irqrestore(&dev->event_lock, flags); + } } static void vc4_crtc_handle_page_flip(struct vc4_crtc *vc4_crtc) From 37d49e37d1e667467d5ab024e259839665949967 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Wed, 10 May 2017 21:39:45 +0100 Subject: [PATCH 150/165] squash: vc4_firmware_kms fixups --- drivers/gpu/drm/vc4/vc4_crtc.c | 2 ++ drivers/gpu/drm/vc4/vc4_firmware_kms.c | 4 ++-- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c index 0ed39e6b9bae3d5dd3d578a3e4400f12e8a56a53..a0e2a33e8b8cd61a0c2e9ae030a323e208ad4169 100644 --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -659,6 +659,7 @@ static void vc4_crtc_atomic_flush(struct drm_crtc *crtc, int vc4_enable_vblank(struct drm_device *dev, unsigned int crtc_id) { + struct vc4_dev *vc4 = to_vc4_dev(dev); struct drm_crtc *crtc = drm_crtc_from_index(dev, crtc_id); struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); @@ -674,6 +675,7 @@ int vc4_enable_vblank(struct drm_device *dev, unsigned int crtc_id) void vc4_disable_vblank(struct drm_device *dev, unsigned int crtc_id) { + struct vc4_dev *vc4 = to_vc4_dev(dev); struct drm_crtc *crtc = drm_crtc_from_index(dev, crtc_id); struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); diff --git a/drivers/gpu/drm/vc4/vc4_firmware_kms.c b/drivers/gpu/drm/vc4/vc4_firmware_kms.c index da818a207bfa639b8cea48d94bcf4566f97db816..35425063cca47a33936c4853f7cc320c3630fdb2 100644 --- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c +++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c @@ -191,7 +191,7 @@ static void vc4_cursor_plane_atomic_update(struct drm_plane *plane, bo->paddr + fb->offsets[0], 0, 0, /* hotx, hoty */}; WARN_ON_ONCE(fb->pitches[0] != state->crtc_w * 4); - WARN_ON_ONCE(fb->bits_per_pixel != 32); + //WARN_ON_ONCE(fb->bits_per_pixel != 32); DRM_DEBUG_ATOMIC("[PLANE:%d:%s] update %dx%d cursor at %d,%d (0x%08x/%d)", plane->base.id, plane->name, @@ -620,7 +620,7 @@ static int vc4_fkms_bind(struct device *dev, struct device *master, void *data) drm_crtc_helper_add(crtc, &vc4_crtc_helper_funcs); primary_plane->crtc = crtc; cursor_plane->crtc = crtc; - vc4->crtc[drm_crtc_index(crtc)] = vc4_crtc; + //vc4->crtc[drm_crtc_index(crtc)] = vc4_crtc; vc4_encoder = devm_kzalloc(dev, sizeof(*vc4_encoder), GFP_KERNEL); if (!vc4_encoder) From a1a1c64c65f30f6bd6ac9cc191314656716f9722 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Tue, 18 Apr 2017 21:43:46 +0100 Subject: [PATCH 151/165] vc4_fkms: Apply firmware overscan offset to hardware cursor --- drivers/gpu/drm/vc4/vc4_firmware_kms.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/gpu/drm/vc4/vc4_firmware_kms.c b/drivers/gpu/drm/vc4/vc4_firmware_kms.c index 35425063cca47a33936c4853f7cc320c3630fdb2..ca03b85f27d8c0966acd977cba9c758dab4ffb5f 100644 --- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c +++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c @@ -40,6 +40,7 @@ struct vc4_crtc { void __iomem *regs; struct drm_pending_vblank_event *event; + u32 overscan[4]; }; static inline struct vc4_crtc *to_vc4_crtc(struct drm_crtc *crtc) @@ -181,6 +182,7 @@ static void vc4_cursor_plane_atomic_update(struct drm_plane *plane, struct drm_plane_state *old_state) { struct vc4_dev *vc4 = to_vc4_dev(plane->dev); + struct vc4_crtc *vc4_crtc = to_vc4_crtc(plane->crtc); struct drm_plane_state *state = plane->state; struct drm_framebuffer *fb = state->fb; struct drm_gem_cma_object *bo = drm_fb_cma_get_gem_obj(fb, 0); @@ -202,6 +204,12 @@ static void vc4_cursor_plane_atomic_update(struct drm_plane *plane, bo->paddr + fb->offsets[0], fb->pitches[0]); + /* add on the top/left offsets when overscan is active */ + if (vc4_crtc) { + packet_state[1] += vc4_crtc->overscan[0]; + packet_state[2] += vc4_crtc->overscan[1]; + } + ret = rpi_firmware_property(vc4->firmware, RPI_FIRMWARE_SET_CURSOR_STATE, &packet_state, @@ -645,6 +653,15 @@ static int vc4_fkms_bind(struct device *dev, struct device *master, void *data) if (ret) goto err_destroy_connector; + ret = rpi_firmware_property(vc4->firmware, + RPI_FIRMWARE_FRAMEBUFFER_GET_OVERSCAN, + &vc4_crtc->overscan, + sizeof(vc4_crtc->overscan)); + if (ret) { + DRM_ERROR("Failed to get overscan state: 0x%08x\n", vc4_crtc->overscan[0]); + memset(&vc4_crtc->overscan, 0, sizeof(vc4_crtc->overscan)); + } + platform_set_drvdata(pdev, vc4_crtc); return 0; From d1df3da3aeb7d9ca4c544f92b64daf7885ce1c2c Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Thu, 11 May 2017 16:58:16 +0100 Subject: [PATCH 152/165] BCM270X_DT: Tidy up mmc, sdhost, sdio overlays The mmc, sdhost, sdio and sdio-1bit overlays had a few anachronisms and oddities which were overdue for fixing. The new versions should be functionally equivalent. Signed-off-by: Phil Elwell --- arch/arm/boot/dts/overlays/mmc-overlay.dts | 1 + arch/arm/boot/dts/overlays/sdhost-overlay.dts | 1 - arch/arm/boot/dts/overlays/sdio-1bit-overlay.dts | 11 ++++++----- arch/arm/boot/dts/overlays/sdio-overlay.dts | 11 ++++++----- 4 files changed, 13 insertions(+), 11 deletions(-) diff --git a/arch/arm/boot/dts/overlays/mmc-overlay.dts b/arch/arm/boot/dts/overlays/mmc-overlay.dts index d32b02ca01ced5ab3de00d66d5412c8fda4bc510..88251ad653917674f80c2975de2e425fca00b71f 100644 --- a/arch/arm/boot/dts/overlays/mmc-overlay.dts +++ b/arch/arm/boot/dts/overlays/mmc-overlay.dts @@ -21,6 +21,7 @@ mmc_pins: mmc_pins { brcm,pins = <48 49 50 51 52 53>; brcm,function = <7>; /* alt3 */ + brcm,pull = <0 2 2 2 2 2>; }; }; }; diff --git a/arch/arm/boot/dts/overlays/sdhost-overlay.dts b/arch/arm/boot/dts/overlays/sdhost-overlay.dts index a431177a1c9d320d5432ea448ad4d0f696c34525..de3d1b0a5e403057a8e94f85695de4076d77e31f 100644 --- a/arch/arm/boot/dts/overlays/sdhost-overlay.dts +++ b/arch/arm/boot/dts/overlays/sdhost-overlay.dts @@ -11,7 +11,6 @@ frag0: __overlay__ { brcm,overclock-50 = <0>; brcm,pio-limit = <1>; - brcm,debug-flags = <0>; status = "okay"; }; }; diff --git a/arch/arm/boot/dts/overlays/sdio-1bit-overlay.dts b/arch/arm/boot/dts/overlays/sdio-1bit-overlay.dts index 46d453859b31f5c700a8a2e39a2c209330bc108f..0b7f2c6f2603b631e1985df7fbf66749149566d6 100644 --- a/arch/arm/boot/dts/overlays/sdio-1bit-overlay.dts +++ b/arch/arm/boot/dts/overlays/sdio-1bit-overlay.dts @@ -1,11 +1,12 @@ -/* Enable 1-bit SDIO from MMC interface via GPIOs 22-25. Includes sdhost overlay. */ +/dts-v1/; +/plugin/; -/include/ "sdhost-overlay.dts" +/* Enable 1-bit SDIO from MMC interface via GPIOs 22-25. Includes sdhost overlay. */ /{ compatible = "brcm,bcm2708"; - fragment@3 { + fragment@0 { target = <&mmc>; sdio_mmc: __overlay__ { compatible = "brcm,bcm2835-mmc"; @@ -18,12 +19,12 @@ }; }; - fragment@4 { + fragment@1 { target = <&gpio>; __overlay__ { sdio_pins: sdio_pins { brcm,pins = <22 23 24 25>; - brcm,function = <7 7 7 7>; /* ALT3 = SD1 */ + brcm,function = <7>; /* ALT3 = SD1 */ brcm,pull = <0 2 2 2>; }; }; diff --git a/arch/arm/boot/dts/overlays/sdio-overlay.dts b/arch/arm/boot/dts/overlays/sdio-overlay.dts index 398bd812c716c9e472fbac5aba4fe882114c65d1..215d5e3e8a8ca4363457fed1f7425427bb5086d7 100644 --- a/arch/arm/boot/dts/overlays/sdio-overlay.dts +++ b/arch/arm/boot/dts/overlays/sdio-overlay.dts @@ -1,11 +1,12 @@ -/* Enable SDIO from MMC interface via GPIOs 22-27. Includes sdhost overlay. */ +/dts-v1/; +/plugin/; -/include/ "sdhost-overlay.dts" +/* Enable SDIO from MMC interface via GPIOs 22-27. Includes sdhost overlay. */ /{ compatible = "brcm,bcm2708"; - fragment@3 { + fragment@0 { target = <&mmc>; sdio_mmc: __overlay__ { pinctrl-names = "default"; @@ -17,12 +18,12 @@ }; }; - fragment@4 { + fragment@1 { target = <&gpio>; __overlay__ { sdio_pins: sdio_pins { brcm,pins = <22 23 24 25 26 27>; - brcm,function = <7 7 7 7 7 7>; /* ALT3 = SD1 */ + brcm,function = <7>; /* ALT3 = SD1 */ brcm,pull = <0 2 2 2 2 2>; }; }; From 3d075ae0ebb40409adcd8b7a8c72f0c7e3e2aa0e Mon Sep 17 00:00:00 2001 From: P33M Date: Fri, 12 May 2017 12:24:00 +0100 Subject: [PATCH 153/165] dwc_otg: fix several potential crash sources On root port disconnect events, the host driver state is cleared and in-progress host channels are forcibly stopped. This doesn't play well with the FIQ running in the background, so: - Guard the disconnect callback with both the host spinlock and FIQ spinlock - Move qtd dereference in dwc_otg_handle_hc_fsm() after the early-out so we don't dereference a qtd that has gone away - Turn catch-all BUG()s in dwc_otg_handle_hc_fsm() into warnings. --- drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c | 2 ++ drivers/usb/host/dwc_otg/dwc_otg_hcd.c | 27 +++++++++++++++++++---- drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c | 33 +++++++++++++++++++---------- 3 files changed, 47 insertions(+), 15 deletions(-) diff --git a/drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c b/drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c index 96c76e38cd372b8ca8c375ae8d8653f32a3faf80..9fb7229f43ae4561c9dc1980065381a48711ae41 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c @@ -973,7 +973,9 @@ int32_t dwc_otg_handle_disconnect_intr(dwc_otg_core_if_t * core_if) } else { if (core_if->op_state == A_HOST) { /* A-Cable still connected but device disconnected. */ + DWC_SPINUNLOCK(core_if->lock); cil_hcd_disconnect(core_if); + DWC_SPINLOCK(core_if->lock); if (core_if->adp_enable) { gpwrdn_data_t gpwrdn = { .d32 = 0 }; cil_hcd_stop(core_if); diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c index 37c9d7d38287b616fcd335e80aa4110521fa98ca..9a647b75027378e25eef00b5fc2a9166514b5c59 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c @@ -290,13 +290,16 @@ static int32_t dwc_otg_hcd_disconnect_cb(void *p) gintsts_data_t intr; dwc_otg_hcd_t *dwc_otg_hcd = p; + DWC_SPINLOCK(dwc_otg_hcd->lock); /* * Set status flags for the hub driver. */ dwc_otg_hcd->flags.b.port_connect_status_change = 1; dwc_otg_hcd->flags.b.port_connect_status = 0; - if(fiq_enable) + if(fiq_enable) { local_fiq_disable(); + fiq_fsm_spin_lock(&dwc_otg_hcd->fiq_state->lock); + } /* * Shutdown any transfers in process by clearing the Tx FIFO Empty * interrupt mask and status bits and disabling subsequent host @@ -389,7 +392,8 @@ static int32_t dwc_otg_hcd_disconnect_cb(void *p) * in release_channel_ddma(). Which called from ep_disable * when device disconnect. */ - channel->qh = NULL; + if (dwc_otg_hcd->core_if->dma_desc_enable) + channel->qh = NULL; } } if(fiq_fsm_enable) { @@ -400,13 +404,16 @@ static int32_t dwc_otg_hcd_disconnect_cb(void *p) } - if(fiq_enable) + if(fiq_enable) { + fiq_fsm_spin_unlock(&dwc_otg_hcd->fiq_state->lock); local_fiq_enable(); + } if (dwc_otg_hcd->fops->disconnect) { dwc_otg_hcd->fops->disconnect(dwc_otg_hcd); } + DWC_SPINUNLOCK(dwc_otg_hcd->lock); return 1; } @@ -1750,8 +1757,20 @@ int fiq_fsm_queue_split_transaction(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) int hub_addr, port_addr, frame, uframe; struct fiq_channel_state *st = &hcd->fiq_state->channel[hc->hc_num]; - if (st->fsm != FIQ_PASSTHROUGH) + /* + * Non-periodic channel assignments stay in the non_periodic_active queue. + * Therefore we get repeatedly called until the FIQ's done processing this channel. + */ + if (qh->channel->xfer_started == 1) return 0; + + if (st->fsm != FIQ_PASSTHROUGH) { + pr_warn_ratelimited("%s:%d: Queue called for an active channel\n", __func__, __LINE__); + return 0; + } + + qh->channel->xfer_started = 1; + st->nr_errors = 0; st->hcchar_copy.d32 = 0; diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c index 718a1accc0c219a1764ce53d291de6a2b6f93608..cf23baaa388562b5843be4cfa6c206cbdc4e780d 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c @@ -2374,8 +2374,7 @@ void dwc_otg_hcd_handle_hc_fsm(dwc_otg_hcd_t *hcd, uint32_t num) { struct fiq_channel_state *st = &hcd->fiq_state->channel[num]; dwc_hc_t *hc = hcd->hc_ptr_array[num]; - dwc_otg_qtd_t *qtd = DWC_CIRCLEQ_FIRST(&hc->qh->qtd_list); - dwc_otg_qh_t *qh = hc->qh; + dwc_otg_qtd_t *qtd; dwc_otg_hc_regs_t *hc_regs = hcd->core_if->host_if->hc_regs[num]; hcint_data_t hcint = hcd->fiq_state->channel[num].hcint_copy; hctsiz_data_t hctsiz = hcd->fiq_state->channel[num].hctsiz_copy; @@ -2385,16 +2384,19 @@ void dwc_otg_hcd_handle_hc_fsm(dwc_otg_hcd_t *hcd, uint32_t num) hostchannels = hcd->available_host_channels; if (hc->halt_pending) { /* Dequeue: The FIQ was allowed to complete the transfer but state has been cleared. */ - if (st->fsm == FIQ_NP_SPLIT_DONE && hcint.b.xfercomp && qh->ep_type == UE_BULK) { + if (hc->qh && st->fsm == FIQ_NP_SPLIT_DONE && + hcint.b.xfercomp && hc->qh->ep_type == UE_BULK) { if (hctsiz.b.pid == DWC_HCTSIZ_DATA0) { - qh->data_toggle = DWC_OTG_HC_PID_DATA1; + hc->qh->data_toggle = DWC_OTG_HC_PID_DATA1; } else { - qh->data_toggle = DWC_OTG_HC_PID_DATA0; + hc->qh->data_toggle = DWC_OTG_HC_PID_DATA0; } } release_channel(hcd, hc, NULL, hc->halt_status); return; } + + qtd = DWC_CIRCLEQ_FIRST(&hc->qh->qtd_list); switch (st->fsm) { case FIQ_TEST: break; @@ -2413,6 +2415,11 @@ void dwc_otg_hcd_handle_hc_fsm(dwc_otg_hcd_t *hcd, uint32_t num) handle_hc_xfercomp_intr(hcd, hc, hc_regs, qtd); } else if (hcint.b.nak) { handle_hc_nak_intr(hcd, hc, hc_regs, qtd); + } else { + DWC_WARN("Unexpected IRQ state on FSM transaction:" + "dev_addr=%d ep=%d fsm=%d, hcint=0x%08x\n", + hc->dev_addr, hc->ep_num, st->fsm, hcint.d32); + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NO_HALT_STATUS); } break; @@ -2428,8 +2435,10 @@ void dwc_otg_hcd_handle_hc_fsm(dwc_otg_hcd_t *hcd, uint32_t num) } else if (hcint.b.ahberr) { handle_hc_ahberr_intr(hcd, hc, hc_regs, qtd); } else { - local_fiq_disable(); - BUG(); + DWC_WARN("Unexpected IRQ state on FSM transaction:" + "dev_addr=%d ep=%d fsm=%d, hcint=0x%08x\n", + hc->dev_addr, hc->ep_num, st->fsm, hcint.d32); + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NO_HALT_STATUS); } break; @@ -2445,8 +2454,10 @@ void dwc_otg_hcd_handle_hc_fsm(dwc_otg_hcd_t *hcd, uint32_t num) } else if (hcint.b.ahberr) { handle_hc_ahberr_intr(hcd, hc, hc_regs, qtd); } else { - local_fiq_disable(); - BUG(); + DWC_WARN("Unexpected IRQ state on FSM transaction:" + "dev_addr=%d ep=%d fsm=%d, hcint=0x%08x\n", + hc->dev_addr, hc->ep_num, st->fsm, hcint.d32); + release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NO_HALT_STATUS); } break; @@ -2504,7 +2515,7 @@ void dwc_otg_hcd_handle_hc_fsm(dwc_otg_hcd_t *hcd, uint32_t num) } else { frame_desc->status = 0; /* Unswizzle dma */ - len = dwc_otg_fiq_unsetup_per_dma(hcd, qh, qtd, num); + len = dwc_otg_fiq_unsetup_per_dma(hcd, hc->qh, qtd, num); frame_desc->actual_length = len; } qtd->isoc_frame_index++; @@ -2566,7 +2577,7 @@ void dwc_otg_hcd_handle_hc_fsm(dwc_otg_hcd_t *hcd, uint32_t num) * The status is recorded as the interrupt state should the transaction * fail. */ - dwc_otg_fiq_unmangle_isoc(hcd, qh, qtd, num); + dwc_otg_fiq_unmangle_isoc(hcd, hc->qh, qtd, num); hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, 0); release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE); break; From 68be9076e548897ace4b352c5de07e0e06e98647 Mon Sep 17 00:00:00 2001 From: P33M Date: Mon, 15 May 2017 14:27:48 +0100 Subject: [PATCH 154/165] dwc_otg: delete hcd->channel_lock The lock serves no purpose as it is only held while the HCD spinlock is already being held. --- drivers/usb/host/dwc_otg/dwc_otg_hcd.c | 15 --------------- drivers/usb/host/dwc_otg/dwc_otg_hcd.h | 1 - drivers/usb/host/dwc_otg/dwc_otg_hcd_ddma.c | 5 ----- drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c | 4 ---- 4 files changed, 25 deletions(-) diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c index 9a647b75027378e25eef00b5fc2a9166514b5c59..5ec991624c7865901b22ea01b9f2c58c8535ecfd 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c @@ -938,7 +938,6 @@ static void dwc_otg_hcd_free(dwc_otg_hcd_t * dwc_otg_hcd) } else if (dwc_otg_hcd->status_buf != NULL) { DWC_FREE(dwc_otg_hcd->status_buf); } - DWC_SPINLOCK_FREE(dwc_otg_hcd->channel_lock); DWC_SPINLOCK_FREE(dwc_otg_hcd->lock); /* Set core_if's lock pointer to NULL */ dwc_otg_hcd->core_if->lock = NULL; @@ -969,10 +968,8 @@ int dwc_otg_hcd_init(dwc_otg_hcd_t * hcd, dwc_otg_core_if_t * core_if) #if (defined(DWC_LINUX) && defined(CONFIG_DEBUG_SPINLOCK)) DWC_SPINLOCK_ALLOC_LINUX_DEBUG(hcd->lock); - DWC_SPINLOCK_ALLOC_LINUX_DEBUG(hcd->channel_lock); #else hcd->lock = DWC_SPINLOCK_ALLOC(); - hcd->channel_lock = DWC_SPINLOCK_ALLOC(); #endif DWC_DEBUGPL(DBG_HCDV, "init of HCD %p given core_if %p\n", hcd, core_if); @@ -1997,7 +1994,6 @@ dwc_otg_transaction_type_e dwc_otg_hcd_select_transactions(dwc_otg_hcd_t * hcd) dwc_otg_qh_t *qh; int num_channels; dwc_irqflags_t flags; - dwc_spinlock_t *channel_lock = hcd->channel_lock; dwc_otg_transaction_type_e ret_val = DWC_OTG_TRANSACTION_NONE; #ifdef DEBUG_HOST_CHANNELS @@ -2016,13 +2012,10 @@ dwc_otg_transaction_type_e dwc_otg_hcd_select_transactions(dwc_otg_hcd_t * hcd) if (microframe_schedule) { // Make sure we leave one channel for non periodic transactions. - DWC_SPINLOCK_IRQSAVE(channel_lock, &flags); if (hcd->available_host_channels <= 1) { - DWC_SPINUNLOCK_IRQRESTORE(channel_lock, flags); break; } hcd->available_host_channels--; - DWC_SPINUNLOCK_IRQRESTORE(channel_lock, flags); #ifdef DEBUG_HOST_CHANNELS last_sel_trans_num_per_scheduled++; #endif /* DEBUG_HOST_CHANNELS */ @@ -2035,10 +2028,8 @@ dwc_otg_transaction_type_e dwc_otg_hcd_select_transactions(dwc_otg_hcd_t * hcd) * periodic assigned schedule. */ qh_ptr = DWC_LIST_NEXT(qh_ptr); - DWC_SPINLOCK_IRQSAVE(channel_lock, &flags); DWC_LIST_MOVE_HEAD(&hcd->periodic_sched_assigned, &qh->qh_list_entry); - DWC_SPINUNLOCK_IRQRESTORE(channel_lock, flags); } /* @@ -2076,13 +2067,10 @@ dwc_otg_transaction_type_e dwc_otg_hcd_select_transactions(dwc_otg_hcd_t * hcd) } if (microframe_schedule) { - DWC_SPINLOCK_IRQSAVE(channel_lock, &flags); if (hcd->available_host_channels < 1) { - DWC_SPINUNLOCK_IRQRESTORE(channel_lock, flags); break; } hcd->available_host_channels--; - DWC_SPINUNLOCK_IRQRESTORE(channel_lock, flags); #ifdef DEBUG_HOST_CHANNELS last_sel_trans_num_nonper_scheduled++; #endif /* DEBUG_HOST_CHANNELS */ @@ -2095,11 +2083,8 @@ dwc_otg_transaction_type_e dwc_otg_hcd_select_transactions(dwc_otg_hcd_t * hcd) * non-periodic active schedule. */ qh_ptr = DWC_LIST_NEXT(qh_ptr); - DWC_SPINLOCK_IRQSAVE(channel_lock, &flags); DWC_LIST_MOVE_HEAD(&hcd->non_periodic_sched_active, &qh->qh_list_entry); - DWC_SPINUNLOCK_IRQRESTORE(channel_lock, flags); - if (!microframe_schedule) hcd->non_periodic_channels++; diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd.h b/drivers/usb/host/dwc_otg/dwc_otg_hcd.h index 4539cd7b802d3e49ac9a6cb3f1d88b475a1ace16..7f7e9eaffd6a3c3d898855562fbec11289f77f53 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd.h +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd.h @@ -568,7 +568,6 @@ struct dwc_otg_hcd { /* */ dwc_spinlock_t *lock; - dwc_spinlock_t *channel_lock; /** * Private data that could be used by OS wrapper. */ diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_ddma.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd_ddma.c index 126e99ab2fc43f11d89a08ff0476181ead84029f..bd8a20403713442f6748137d6b5de67e94c3893f 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_ddma.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_ddma.c @@ -279,17 +279,12 @@ void dump_frame_list(dwc_otg_hcd_t * hcd) static void release_channel_ddma(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) { - dwc_irqflags_t flags; - dwc_spinlock_t *channel_lock = hcd->channel_lock; - dwc_hc_t *hc = qh->channel; if (dwc_qh_is_non_per(qh)) { - DWC_SPINLOCK_IRQSAVE(channel_lock, &flags); if (!microframe_schedule) hcd->non_periodic_channels--; else hcd->available_host_channels++; - DWC_SPINUNLOCK_IRQRESTORE(channel_lock, flags); } else update_frame_list(hcd, qh, 0); diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c index cf23baaa388562b5843be4cfa6c206cbdc4e780d..a4355afc77b68718fdaba6c5d4be257dadc75036 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c @@ -945,7 +945,6 @@ static void release_channel(dwc_otg_hcd_t * hcd, dwc_otg_transaction_type_e tr_type; int free_qtd; dwc_irqflags_t flags; - dwc_spinlock_t *channel_lock = hcd->channel_lock; int hog_port = 0; @@ -1034,11 +1033,8 @@ static void release_channel(dwc_otg_hcd_t * hcd, break; } } else { - - DWC_SPINLOCK_IRQSAVE(channel_lock, &flags); hcd->available_host_channels++; fiq_print(FIQDBG_INT, hcd->fiq_state, "AHC = %d ", hcd->available_host_channels); - DWC_SPINUNLOCK_IRQRESTORE(channel_lock, flags); } /* Try to queue more transfers now that there's a free channel. */ From 6a4e96243d237ccb48c533af77829c80c46b3575 Mon Sep 17 00:00:00 2001 From: P33M Date: Mon, 15 May 2017 14:51:42 +0100 Subject: [PATCH 155/165] dwc_otg: remove unnecessary dma-mode channel halts on disconnect interrupt Host channels are already halted in kill_urbs_in_qh_list() with the subsequent interrupt processing behaving as if the URB was dequeued via HCD callback. There's no need to clobber the host channel registers a second time as this exposes races between the driver and host channel resulting in hcd->free_hc_list becoming corrupted. --- drivers/usb/host/dwc_otg/dwc_otg_hcd.c | 30 ------------------------------ 1 file changed, 30 deletions(-) diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c index 5ec991624c7865901b22ea01b9f2c58c8535ecfd..a2dc6337836b2719f4c954edeeb2a71301931b04 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c @@ -200,8 +200,6 @@ static void kill_urbs_in_qh_list(dwc_otg_hcd_t * hcd, dwc_list_link_t * qh_list) dwc_otg_hc_halt(hcd->core_if, qh->channel, DWC_OTG_HC_XFER_URB_DEQUEUE); } - if(microframe_schedule) - hcd->available_host_channels++; qh->channel = NULL; } dwc_otg_hcd_qh_remove(hcd, qh); @@ -369,39 +367,11 @@ static int32_t dwc_otg_hcd_disconnect_cb(void *p) } } - for (i = 0; i < num_channels; i++) { - channel = dwc_otg_hcd->hc_ptr_array[i]; - if (DWC_CIRCLEQ_EMPTY_ENTRY(channel, hc_list_entry)) { - hc_regs = - dwc_otg_hcd->core_if->host_if->hc_regs[i]; - hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar); - if (hcchar.b.chen) { - /* Halt the channel. */ - hcchar.b.chdis = 1; - DWC_WRITE_REG32(&hc_regs->hcchar, - hcchar.d32); - } - - dwc_otg_hc_cleanup(dwc_otg_hcd->core_if, - channel); - DWC_CIRCLEQ_INSERT_TAIL - (&dwc_otg_hcd->free_hc_list, channel, - hc_list_entry); - /* - * Added for Descriptor DMA to prevent channel double cleanup - * in release_channel_ddma(). Which called from ep_disable - * when device disconnect. - */ - if (dwc_otg_hcd->core_if->dma_desc_enable) - channel->qh = NULL; - } - } if(fiq_fsm_enable) { for(i=0; i < 128; i++) { dwc_otg_hcd->hub_port[i] = 0; } } - } if(fiq_enable) { From 0be3655e1ef6461e38ef31ecdf35cfd99e44e3ac Mon Sep 17 00:00:00 2001 From: popcornmix Date: Mon, 15 May 2017 16:40:05 +0100 Subject: [PATCH 156/165] config: Add CONFIG_TOUCHSCREEN_GOODIX --- arch/arm/configs/bcm2709_defconfig | 1 + arch/arm/configs/bcmrpi_defconfig | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/arm/configs/bcm2709_defconfig b/arch/arm/configs/bcm2709_defconfig index 94227b4a4f8a9b3a4627dceaf7c654da4f2f87df..268ac2b47d3fac00e3e53c19c44d5a30b16b3101 100644 --- a/arch/arm/configs/bcm2709_defconfig +++ b/arch/arm/configs/bcm2709_defconfig @@ -565,6 +565,7 @@ CONFIG_JOYSTICK_RPISENSE=m CONFIG_INPUT_TOUCHSCREEN=y CONFIG_TOUCHSCREEN_ADS7846=m CONFIG_TOUCHSCREEN_EGALAX=m +CONFIG_TOUCHSCREEN_GOODIX=m CONFIG_TOUCHSCREEN_RPI_FT5406=m CONFIG_TOUCHSCREEN_USB_COMPOSITE=m CONFIG_TOUCHSCREEN_STMPE=m diff --git a/arch/arm/configs/bcmrpi_defconfig b/arch/arm/configs/bcmrpi_defconfig index db6589288b6abd6b76b934de07e8976456e14e61..88072e3b55eb230be44f6d23012428eda3de3453 100644 --- a/arch/arm/configs/bcmrpi_defconfig +++ b/arch/arm/configs/bcmrpi_defconfig @@ -561,6 +561,7 @@ CONFIG_JOYSTICK_RPISENSE=m CONFIG_INPUT_TOUCHSCREEN=y CONFIG_TOUCHSCREEN_ADS7846=m CONFIG_TOUCHSCREEN_EGALAX=m +CONFIG_TOUCHSCREEN_GOODIX=m CONFIG_TOUCHSCREEN_RPI_FT5406=m CONFIG_TOUCHSCREEN_USB_COMPOSITE=m CONFIG_TOUCHSCREEN_STMPE=m From ec225ab9eb5f50e990f33514fb42201d663b2032 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Thu, 18 May 2017 11:40:43 +0100 Subject: [PATCH 157/165] config: Add FB_TFT_ST7789V module --- arch/arm/configs/bcm2709_defconfig | 1 + arch/arm/configs/bcmrpi_defconfig | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/arm/configs/bcm2709_defconfig b/arch/arm/configs/bcm2709_defconfig index 268ac2b47d3fac00e3e53c19c44d5a30b16b3101..4b1321172dc050ee4a172f8d410b35472f2ae29e 100644 --- a/arch/arm/configs/bcm2709_defconfig +++ b/arch/arm/configs/bcm2709_defconfig @@ -1143,6 +1143,7 @@ CONFIG_FB_TFT_SSD1306=m CONFIG_FB_TFT_SSD1331=m CONFIG_FB_TFT_SSD1351=m CONFIG_FB_TFT_ST7735R=m +CONFIG_FB_TFT_ST7789V=m CONFIG_FB_TFT_TINYLCD=m CONFIG_FB_TFT_TLS8204=m CONFIG_FB_TFT_UC1701=m diff --git a/arch/arm/configs/bcmrpi_defconfig b/arch/arm/configs/bcmrpi_defconfig index 88072e3b55eb230be44f6d23012428eda3de3453..65e3676b48ab0c0f54375ecf875fc2552c457e09 100644 --- a/arch/arm/configs/bcmrpi_defconfig +++ b/arch/arm/configs/bcmrpi_defconfig @@ -1150,6 +1150,7 @@ CONFIG_FB_TFT_SSD1306=m CONFIG_FB_TFT_SSD1331=m CONFIG_FB_TFT_SSD1351=m CONFIG_FB_TFT_ST7735R=m +CONFIG_FB_TFT_ST7789V=m CONFIG_FB_TFT_TINYLCD=m CONFIG_FB_TFT_TLS8204=m CONFIG_FB_TFT_UC1701=m From 48b3930f538bbf573de3308159989b9f0901f639 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Tue, 16 May 2017 15:58:00 +0100 Subject: [PATCH 158/165] config: Add CONFIG_TOUCHSCREEN_EDT_FT5X06 --- arch/arm/configs/bcm2709_defconfig | 1 + arch/arm/configs/bcmrpi_defconfig | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/arm/configs/bcm2709_defconfig b/arch/arm/configs/bcm2709_defconfig index 4b1321172dc050ee4a172f8d410b35472f2ae29e..589ca1cb499e288fc36a00db251970110a7be053 100644 --- a/arch/arm/configs/bcm2709_defconfig +++ b/arch/arm/configs/bcm2709_defconfig @@ -566,6 +566,7 @@ CONFIG_INPUT_TOUCHSCREEN=y CONFIG_TOUCHSCREEN_ADS7846=m CONFIG_TOUCHSCREEN_EGALAX=m CONFIG_TOUCHSCREEN_GOODIX=m +CONFIG_TOUCHSCREEN_EDT_FT5X06=m CONFIG_TOUCHSCREEN_RPI_FT5406=m CONFIG_TOUCHSCREEN_USB_COMPOSITE=m CONFIG_TOUCHSCREEN_STMPE=m diff --git a/arch/arm/configs/bcmrpi_defconfig b/arch/arm/configs/bcmrpi_defconfig index 65e3676b48ab0c0f54375ecf875fc2552c457e09..7381eeba83ecd4a2c956ab2093ece4f8a57c6ea4 100644 --- a/arch/arm/configs/bcmrpi_defconfig +++ b/arch/arm/configs/bcmrpi_defconfig @@ -562,6 +562,7 @@ CONFIG_INPUT_TOUCHSCREEN=y CONFIG_TOUCHSCREEN_ADS7846=m CONFIG_TOUCHSCREEN_EGALAX=m CONFIG_TOUCHSCREEN_GOODIX=m +CONFIG_TOUCHSCREEN_EDT_FT5X06=m CONFIG_TOUCHSCREEN_RPI_FT5406=m CONFIG_TOUCHSCREEN_USB_COMPOSITE=m CONFIG_TOUCHSCREEN_STMPE=m From 07ec924f089da1e85958e82c77323d294ecb79b2 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Tue, 16 May 2017 19:34:52 +0100 Subject: [PATCH 159/165] config: Add CONFIG_I2C_ROBOTFUZZ_OSIF --- arch/arm/configs/bcm2709_defconfig | 1 + arch/arm/configs/bcmrpi_defconfig | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/arm/configs/bcm2709_defconfig b/arch/arm/configs/bcm2709_defconfig index 589ca1cb499e288fc36a00db251970110a7be053..12157f209bc0a503c1bc3f04224784451c03f964 100644 --- a/arch/arm/configs/bcm2709_defconfig +++ b/arch/arm/configs/bcm2709_defconfig @@ -614,6 +614,7 @@ CONFIG_I2C_MUX_PCA954x=m CONFIG_I2C_BCM2708=m CONFIG_I2C_BCM2835=m CONFIG_I2C_GPIO=m +CONFIG_I2C_ROBOTFUZZ_OSIF=m CONFIG_SPI=y CONFIG_SPI_BCM2835=m CONFIG_SPI_BCM2835AUX=m diff --git a/arch/arm/configs/bcmrpi_defconfig b/arch/arm/configs/bcmrpi_defconfig index 7381eeba83ecd4a2c956ab2093ece4f8a57c6ea4..35dc0b5084256f2ae755703edc3eb67cab0759ec 100644 --- a/arch/arm/configs/bcmrpi_defconfig +++ b/arch/arm/configs/bcmrpi_defconfig @@ -610,6 +610,7 @@ CONFIG_I2C_MUX_PCA954x=m CONFIG_I2C_BCM2708=m CONFIG_I2C_BCM2835=m CONFIG_I2C_GPIO=m +CONFIG_I2C_ROBOTFUZZ_OSIF=m CONFIG_SPI=y CONFIG_SPI_BCM2835=m CONFIG_SPI_BCM2835AUX=m From 37db614838890f9d3851fd8a44231a2e1aa4bd61 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Wed, 26 Apr 2017 17:28:47 +0100 Subject: [PATCH 160/165] clk: bcm2835: Limit PCM clock to OSC and PLLD_PER It is unwise to use sources other than the oscillator and PLLD_PER for the PCM peripheral (and perhaps others - TBD) because their rate can change and they may even be switched off, so explicitly restrict the choice using dummy entries in the list of potential parents (item index is significant). See: https://github.com/raspberrypi/linux/issues/1949 Signed-off-by: Phil Elwell --- drivers/clk/bcm/clk-bcm2835.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c index fe3298b54cdfb96bd90fb4f39e13921d2e1d4356..c24b4defb2b046e4ecdc109befc2b22497060647 100644 --- a/drivers/clk/bcm/clk-bcm2835.c +++ b/drivers/clk/bcm/clk-bcm2835.c @@ -1562,6 +1562,16 @@ static const char *const bcm2835_clock_per_parents[] = { "pllh_aux", }; +static const char *const bcm2835_pcm_per_parents[] = { + "-", + "xosc", + "-", + "-", + "-", + "-", + "plld_per", +}; + #define REGISTER_PER_CLK(...) REGISTER_CLK( \ .num_mux_parents = ARRAY_SIZE(bcm2835_clock_per_parents), \ .parents = bcm2835_clock_per_parents, \ @@ -2051,6 +2061,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .int_bits = 12, .frac_bits = 12, .is_mash_clock = true, + .parents = bcm2835_pcm_per_parents, .tcnt_mux = 23), [BCM2835_CLOCK_PWM] = REGISTER_PER_CLK( .name = "pwm", From 621ee8308fbc211d0813037897daa8dff325812b Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Mon, 22 May 2017 13:56:41 +0100 Subject: [PATCH 161/165] clk: bcm2835: Minimise clock jitter for PCM clock Fractional clock dividers generate accurate average frequencies but with jitter, particularly when the integer divisor is small. Introduce a new metric of clock accuracy to penalise clocks with a good average but worse jitter compared to clocks with an average which is no better but with lower jitter. The metric is the ideal rate minus the worse deviation from that ideal using the nearest integer divisors. Use this metric for parent selection for clocks requiring low jitter (currently just PCM). Signed-off-by: Phil Elwell --- drivers/clk/bcm/clk-bcm2835.c | 39 ++++++++++++++++++++++++++++++++++----- 1 file changed, 34 insertions(+), 5 deletions(-) diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c index c24b4defb2b046e4ecdc109befc2b22497060647..db3ba74acf78f4dfec0d2206b58bc7c3a09f72fe 100644 --- a/drivers/clk/bcm/clk-bcm2835.c +++ b/drivers/clk/bcm/clk-bcm2835.c @@ -534,6 +534,7 @@ struct bcm2835_clock_data { bool is_vpu_clock; bool is_mash_clock; + bool low_jitter; u32 tcnt_mux; }; @@ -1154,7 +1155,8 @@ static unsigned long bcm2835_clock_choose_div_and_prate(struct clk_hw *hw, int parent_idx, unsigned long rate, u32 *div, - unsigned long *prate) + unsigned long *prate, + unsigned long *avgrate) { struct bcm2835_clock *clock = bcm2835_clock_from_hw(hw); struct bcm2835_cprman *cprman = clock->cprman; @@ -1166,11 +1168,33 @@ static unsigned long bcm2835_clock_choose_div_and_prate(struct clk_hw *hw, parent = clk_hw_get_parent_by_index(hw, parent_idx); if (!(BIT(parent_idx) & data->set_rate_parent)) { + unsigned long tmp_rate; + *prate = clk_hw_get_rate(parent); *div = bcm2835_clock_choose_div(hw, rate, *prate, true); - return bcm2835_clock_rate_from_divisor(clock, *prate, - *div); + tmp_rate = bcm2835_clock_rate_from_divisor(clock, *prate, *div); + *avgrate = tmp_rate; + + if (data->low_jitter && (*div & CM_DIV_FRAC_MASK)) { + unsigned long high, low; + u32 idiv = *div & ~CM_DIV_FRAC_MASK; + + high = bcm2835_clock_rate_from_divisor(clock, *prate, + idiv); + idiv += CM_DIV_FRAC_MASK + 1; + low = bcm2835_clock_rate_from_divisor(clock, *prate, + idiv); + + /* Return a value which is the maximum deviation + * below the ideal rate, for use as a metric. + */ + if ((tmp_rate - low) < (high - tmp_rate)) + tmp_rate = low; + else + tmp_rate -= high - tmp_rate; + } + return tmp_rate; } if (data->frac_bits) @@ -1197,6 +1221,7 @@ static unsigned long bcm2835_clock_choose_div_and_prate(struct clk_hw *hw, *div = curdiv << CM_DIV_FRAC_BITS; *prate = curdiv * best_rate; + *avgrate = best_rate; return best_rate; } @@ -1208,6 +1233,7 @@ static int bcm2835_clock_determine_rate(struct clk_hw *hw, bool current_parent_is_pllc; unsigned long rate, best_rate = 0; unsigned long prate, best_prate = 0; + unsigned long avgrate, best_avgrate = 0; size_t i; u32 div; @@ -1232,11 +1258,13 @@ static int bcm2835_clock_determine_rate(struct clk_hw *hw, continue; rate = bcm2835_clock_choose_div_and_prate(hw, i, req->rate, - &div, &prate); + &div, &prate, + &avgrate); if (rate > best_rate && rate <= req->rate) { best_parent = parent; best_prate = prate; best_rate = rate; + best_avgrate = avgrate; } } @@ -1246,7 +1274,7 @@ static int bcm2835_clock_determine_rate(struct clk_hw *hw, req->best_parent_hw = best_parent; req->best_parent_rate = best_prate; - req->rate = best_rate; + req->rate = best_avgrate; return 0; } @@ -2061,6 +2089,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .int_bits = 12, .frac_bits = 12, .is_mash_clock = true, + .low_jitter = true, .parents = bcm2835_pcm_per_parents, .tcnt_mux = 23), [BCM2835_CLOCK_PWM] = REGISTER_PER_CLK( From 55047cb2049b576b353dee6de20f5c6b0e66fff5 Mon Sep 17 00:00:00 2001 From: Bilal Amarni Date: Wed, 24 May 2017 10:52:50 +0200 Subject: [PATCH 162/165] [ARM64] enable drivers for GPIO expander and vcio --- arch/arm64/configs/bcmrpi3_defconfig | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/configs/bcmrpi3_defconfig b/arch/arm64/configs/bcmrpi3_defconfig index 4d85c231c5ea0244e1b05fb4a5e3c8fd3e651ddf..9dcb58a519d041fadae99c81a7bda621b2a49f12 100644 --- a/arch/arm64/configs/bcmrpi3_defconfig +++ b/arch/arm64/configs/bcmrpi3_defconfig @@ -575,6 +575,8 @@ CONFIG_SERIO_RAW=m CONFIG_GAMEPORT=m CONFIG_GAMEPORT_NS558=m CONFIG_GAMEPORT_L4=m +CONFIG_BRCM_CHAR_DRIVERS=y +CONFIG_BCM_VCIO=y # CONFIG_BCM2835_DEVGPIOMEM is not set # CONFIG_BCM2835_SMI_DEV is not set # CONFIG_LEGACY_PTYS is not set @@ -609,6 +611,7 @@ CONFIG_PPS=m CONFIG_PPS_CLIENT_LDISC=m CONFIG_PPS_CLIENT_GPIO=m CONFIG_GPIO_SYSFS=y +CONFIG_GPIO_BCM_EXP=y CONFIG_GPIO_BCM_VIRT=y CONFIG_GPIO_ARIZONA=m CONFIG_GPIO_STMPE=y From 447e78fed3772de6db4653f68df6d7ac512476a3 Mon Sep 17 00:00:00 2001 From: P33M Date: Thu, 25 May 2017 16:04:53 +0100 Subject: [PATCH 163/165] dwc_otg: make periodic scheduling behave properly for FS buses If the root port is in full-speed mode, transfer times at 12mbit/s would be calculated but matched against high-speed quotas. Reinitialise hcd->frame_usecs[i] on each port enable event so that full-speed bandwidth can be tracked sensibly. Also, don't bother using the FIQ for transfers when in full-speed mode - at the slower bus speed, interrupt frequency is reduced by an order of magnitude. Related issue: https://github.com/raspberrypi/linux/issues/2020 --- drivers/usb/host/dwc_otg/dwc_otg_hcd.c | 15 ++++++++++----- drivers/usb/host/dwc_otg/dwc_otg_hcd.h | 7 +++++-- drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c | 4 ++++ drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c | 19 ++++++++++++------- 4 files changed, 31 insertions(+), 14 deletions(-) diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c index a2dc6337836b2719f4c954edeeb2a71301931b04..38bf5fc792d32352f9e208e0e90f968599b9bc31 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c @@ -926,8 +926,6 @@ static void dwc_otg_hcd_free(dwc_otg_hcd_t * dwc_otg_hcd) DWC_FREE(dwc_otg_hcd); } -int init_hcd_usecs(dwc_otg_hcd_t *_hcd); - int dwc_otg_hcd_init(dwc_otg_hcd_t * hcd, dwc_otg_core_if_t * core_if) { struct device *dev = dwc_otg_hcd_to_dev(hcd); @@ -1429,6 +1427,7 @@ static void assign_and_init_hc(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) /** * fiq_fsm_transaction_suitable() - Test a QH for compatibility with the FIQ + * @hcd: Pointer to the dwc_otg_hcd struct * @qh: pointer to the endpoint's queue head * * Transaction start/end control flow is grafted onto the existing dwc_otg @@ -1438,8 +1437,14 @@ static void assign_and_init_hc(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) * Returns: 0 for unsuitable, 1 implies the FIQ can be enabled for this transaction. */ -int fiq_fsm_transaction_suitable(dwc_otg_qh_t *qh) +int fiq_fsm_transaction_suitable(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) { + /* There is little benefit in using the FIQ to perform transfers if + * the root port is not in high-speed mode. + */ + if (hcd->flags.b.port_speed != DWC_HPRT0_PRTSPD_HIGH_SPEED) + return 0; + if (qh->do_split) { switch (qh->ep_type) { case UE_CONTROL: @@ -2218,7 +2223,7 @@ static void process_periodic_channels(dwc_otg_hcd_t * hcd) continue; } - if (fiq_fsm_enable && fiq_fsm_transaction_suitable(qh)) { + if (fiq_fsm_enable && fiq_fsm_transaction_suitable(hcd, qh)) { if (qh->do_split) fiq_fsm_queue_split_transaction(hcd, qh); else @@ -2355,7 +2360,7 @@ static void process_non_periodic_channels(dwc_otg_hcd_t * hcd) qh = DWC_LIST_ENTRY(hcd->non_periodic_qh_ptr, dwc_otg_qh_t, qh_list_entry); - if(fiq_fsm_enable && fiq_fsm_transaction_suitable(qh)) { + if(fiq_fsm_enable && fiq_fsm_transaction_suitable(hcd, qh)) { fiq_fsm_queue_split_transaction(hcd, qh); } else { status = queue_transaction(hcd, qh->channel, diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd.h b/drivers/usb/host/dwc_otg/dwc_otg_hcd.h index 7f7e9eaffd6a3c3d898855562fbec11289f77f53..5ed8dccf03959a610849aa6c8946ca745dbae207 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd.h +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd.h @@ -410,7 +410,8 @@ struct dwc_otg_hcd { unsigned port_suspend_change:1; unsigned port_over_current_change:1; unsigned port_l1_change:1; - unsigned reserved:26; + unsigned port_speed:2; + unsigned reserved:24; } b; } flags; @@ -629,7 +630,7 @@ int dwc_otg_hcd_allocate_port(dwc_otg_hcd_t * hcd, dwc_otg_qh_t *qh); void dwc_otg_hcd_release_port(dwc_otg_hcd_t * dwc_otg_hcd, dwc_otg_qh_t *qh); extern int fiq_fsm_queue_transaction(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh); -extern int fiq_fsm_transaction_suitable(dwc_otg_qh_t *qh); +extern int fiq_fsm_transaction_suitable(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh); extern void dwc_otg_cleanup_fiq_channel(dwc_otg_hcd_t *hcd, uint32_t num); /** @} */ @@ -823,6 +824,8 @@ static inline uint16_t dwc_micro_frame_num(uint16_t frame) return frame & 0x7; } +extern void init_hcd_usecs(dwc_otg_hcd_t *_hcd); + void dwc_otg_hcd_save_data_toggle(dwc_hc_t * hc, dwc_otg_hc_regs_t * hc_regs, dwc_otg_qtd_t * qtd); diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c index a4355afc77b68718fdaba6c5d4be257dadc75036..c8f52709a7d24974c0a38dcf1708f91073e96b0e 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c @@ -515,6 +515,10 @@ int32_t dwc_otg_hcd_handle_port_intr(dwc_otg_hcd_t * dwc_otg_hcd) dwc_otg_host_if_t *host_if = dwc_otg_hcd->core_if->host_if; + dwc_otg_hcd->flags.b.port_speed = hprt0.b.prtspd; + if (microframe_schedule) + init_hcd_usecs(dwc_otg_hcd); + /* Every time when port enables calculate * HFIR.FrInterval */ diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c index 85a6d431ca54b47dc10573aa72d1ad69d06f2e36..4b1dd9de99e9e08b2e006fb5f8a7ef92f20c2553 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c @@ -408,13 +408,17 @@ const unsigned short max_uframe_usecs[]={ 100, 100, 100, 100, 100, 100, 30, 0 }; /* * called from dwc_otg_hcd.c:dwc_otg_hcd_init */ -int init_hcd_usecs(dwc_otg_hcd_t *_hcd) +void init_hcd_usecs(dwc_otg_hcd_t *_hcd) { int i; - for (i=0; i<8; i++) { - _hcd->frame_usecs[i] = max_uframe_usecs[i]; + if (_hcd->flags.b.port_speed == DWC_HPRT0_PRTSPD_FULL_SPEED) { + _hcd->frame_usecs[0] = 900; + for (i = 1; i < 8; i++) + _hcd->frame_usecs[i] = 0; + } else { + for (i = 0; i < 8; i++) + _hcd->frame_usecs[i] = max_uframe_usecs[i]; } - return 0; } static int find_single_uframe(dwc_otg_hcd_t * _hcd, dwc_otg_qh_t * _qh) @@ -541,8 +545,9 @@ static int find_uframe(dwc_otg_hcd_t * _hcd, dwc_otg_qh_t * _qh) int ret; ret = -1; - if (_qh->speed == USB_SPEED_HIGH) { - /* if this is a hs transaction we need a full frame */ + if (_qh->speed == USB_SPEED_HIGH || + _hcd->flags.b.port_speed == DWC_HPRT0_PRTSPD_FULL_SPEED) { + /* if this is a hs transaction we need a full frame - or account for FS usecs */ ret = find_single_uframe(_hcd, _qh); } else { /* if this is a fs transaction we may need a sequence of frames */ @@ -627,7 +632,7 @@ static int schedule_periodic(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) if (status) { DWC_INFO("%s: Insufficient periodic bandwidth for " "periodic transfer.\n", __func__); - return status; + return -DWC_E_NO_SPACE; } status = check_max_xfer_size(hcd, qh); if (status) { From 081070763c748cf66b954b430e3021e221bffe0c Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Fri, 19 May 2017 16:07:23 +0100 Subject: [PATCH 164/165] serial: 8250: Add CAP_MINI, set for bcm2835aux commit d087e7a991f1f61ee2c07db1be7c5cc2aa373f5d upstream. The AUX/mini-UART in the BCM2835 family of procesors is a cut-down 8250 clone. In particular it is lacking support for the following features: CSTOPB PARENB PARODD CMSPAR CS5 CS6 Add a new capability (UART_CAP_MINI) that exposes the restrictions to the user of the termios API by turning off the unsupported features in the request. N.B. It is almost possible to automatically discover the missing features by reading back the LCR register, but the CSIZE bits don't cooperate (contrary to the documentation, both bits are significant, but CS5 and CS6 are mapped to CS7) and the code is much longer. See: https://github.com/raspberrypi/linux/issues/1561 Signed-off-by: Phil Elwell Acked-by: Eric Anholt Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/8250/8250.h | 3 +++ drivers/tty/serial/8250/8250_bcm2835aux.c | 2 +- drivers/tty/serial/8250/8250_port.c | 6 ++++++ 3 files changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/8250/8250.h b/drivers/tty/serial/8250/8250.h index ce8d4ffcc425b045377305f176aa8fa85af0068f..b2bdc35f74955fe134606ad9103811d227de8abf 100644 --- a/drivers/tty/serial/8250/8250.h +++ b/drivers/tty/serial/8250/8250.h @@ -81,6 +81,9 @@ struct serial8250_config { #define UART_CAP_HFIFO (1 << 14) /* UART has a "hidden" FIFO */ #define UART_CAP_RPM (1 << 15) /* Runtime PM is active while idle */ #define UART_CAP_IRDA (1 << 16) /* UART supports IrDA line discipline */ +#define UART_CAP_MINI (1 << 17) /* Mini UART on BCM283X family lacks: + * STOP PARITY EPAR SPAR WLEN5 WLEN6 + */ #define UART_BUG_QUOT (1 << 0) /* UART has buggy quot LSB */ #define UART_BUG_TXEN (1 << 1) /* UART has buggy TX IIR status */ diff --git a/drivers/tty/serial/8250/8250_bcm2835aux.c b/drivers/tty/serial/8250/8250_bcm2835aux.c index e10f1244409b344b850ffbbd4af5757a66c875f1..a23c7da42ea81342efc26fb35a92a69d535b7cd0 100644 --- a/drivers/tty/serial/8250/8250_bcm2835aux.c +++ b/drivers/tty/serial/8250/8250_bcm2835aux.c @@ -39,7 +39,7 @@ static int bcm2835aux_serial_probe(struct platform_device *pdev) /* initialize data */ spin_lock_init(&data->uart.port.lock); - data->uart.capabilities = UART_CAP_FIFO; + data->uart.capabilities = UART_CAP_FIFO | UART_CAP_MINI; data->uart.port.dev = &pdev->dev; data->uart.port.regshift = 2; data->uart.port.type = PORT_16550; diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c index 4c26d15ad7d91602aec507b881e6950119587f44..0d12bbe6ce4e9665fef9c3fb0b64d4c4095117bd 100644 --- a/drivers/tty/serial/8250/8250_port.c +++ b/drivers/tty/serial/8250/8250_port.c @@ -2584,6 +2584,12 @@ serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios, unsigned long flags; unsigned int baud, quot, frac = 0; + if (up->capabilities & UART_CAP_MINI) { + termios->c_cflag &= ~(CSTOPB | PARENB | PARODD | CMSPAR); + if ((termios->c_cflag & CSIZE) == CS5 || + (termios->c_cflag & CSIZE) == CS6) + termios->c_cflag = (termios->c_cflag & ~CSIZE) | CS7; + } cval = serial8250_compute_lcr(up, termios->c_cflag); baud = serial8250_get_baud_rate(port, termios, old); From 6a6634d22a77d1e7628ce664eec7bc319772f588 Mon Sep 17 00:00:00 2001 From: P33M Date: Fri, 26 May 2017 12:50:31 +0100 Subject: [PATCH 165/165] dwc_otg: fiq_fsm: Make isochronous compatibility checks work properly Get rid of the spammy printk and local pointer mangling. Also, there is a nominal benefit for using fiq_fsm for isochronous transfers in FS mode (~1.1k IRQs per second vs 2.1k IRQs per second) so remove the root port speed check. --- drivers/usb/host/dwc_otg/dwc_otg_hcd.c | 24 ++++++------------------ 1 file changed, 6 insertions(+), 18 deletions(-) diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c index 38bf5fc792d32352f9e208e0e90f968599b9bc31..71834cf365e67d7ad995bba7869216c4091c3a74 100644 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c @@ -1439,12 +1439,6 @@ static void assign_and_init_hc(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh) int fiq_fsm_transaction_suitable(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) { - /* There is little benefit in using the FIQ to perform transfers if - * the root port is not in high-speed mode. - */ - if (hcd->flags.b.port_speed != DWC_HPRT0_PRTSPD_HIGH_SPEED) - return 0; - if (qh->do_split) { switch (qh->ep_type) { case UE_CONTROL: @@ -1462,28 +1456,22 @@ int fiq_fsm_transaction_suitable(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh) } } else if (qh->ep_type == UE_ISOCHRONOUS) { if (fiq_fsm_mask & (1 << 2)) { - /* HS ISOCH support. We test for compatibility: + /* ISOCH support. We test for compatibility: * - DWORD aligned buffers * - Must be at least 2 transfers (otherwise pointless to use the FIQ) * If yes, then the fsm enqueue function will handle the state machine setup. */ dwc_otg_qtd_t *qtd = DWC_CIRCLEQ_FIRST(&qh->qtd_list); dwc_otg_hcd_urb_t *urb = qtd->urb; - struct dwc_otg_hcd_iso_packet_desc (*iso_descs)[0] = &urb->iso_descs; - int nr_iso_frames = urb->packet_count; + dwc_dma_t ptr; int i; - uint32_t ptr; - if (nr_iso_frames < 2) + if (urb->packet_count < 2) return 0; - for (i = 0; i < nr_iso_frames; i++) { - ptr = urb->dma + iso_descs[i]->offset; - if (ptr & 0x3) { - printk_ratelimited("%s: Non-Dword aligned isochronous frame offset." - " Cannot queue FIQ-accelerated transfer to device %d endpoint %d\n", - __FUNCTION__, qh->channel->dev_addr, qh->channel->ep_num); + for (i = 0; i < urb->packet_count; i++) { + ptr = urb->dma + urb->iso_descs[i].offset; + if (ptr & 0x3) return 0; - } } return 1; }