Hardware interrupt
[Kernel]

宏定义
#define	OS_HWI_MAX_NUM   32
	Maximum number of used hardware interrupts.
#define	OS_HWI_PRIO_HIGHEST   0
	Highest priority of a hardware interrupt.
#define	OS_HWI_PRIO_LOWEST   7
	Lowest priority of a hardware interrupt.
#define	OS_INT_ACTIVE   (g_vuwIntCount > 0)
	An interrupt is active.
#define	OS_INT_INACTIVE   (!(OS_INT_ACTIVE))
	An interrupt is inactive.
#define	OS_SYS_VECTOR_CNT   16
	Count of M-Core system interrupt vector.
#define	OS_VECTOR_CNT   (OS_SYS_VECTOR_CNT + OS_HWI_MAX_NUM)
	Count of M-Core interrupt vector.
#define	OS_NVIC_AIRCR_PRIGROUP   7
	AIRCR register priority group parameter .
#define	OS_ERRNO_HWI_NUM_INVALID   LOS_ERRNO_OS_ERROR(LOS_MOD_HWI, 0x00)
	Hardware interrupt error code: Invalid interrupt number.
#define	OS_ERRNO_HWI_PROC_FUNC_NULL   LOS_ERRNO_OS_ERROR(LOS_MOD_HWI, 0x01)
	Hardware interrupt error code: Null hardware interrupt handling function.
#define	OS_ERRNO_HWI_CB_UNAVAILABLE   LOS_ERRNO_OS_ERROR(LOS_MOD_HWI, 0x02)
	Hardware interrupt error code: Insufficient interrupt resources for hardware interrupt creation.
#define	OS_ERRNO_HWI_NO_MEMORY   LOS_ERRNO_OS_ERROR(LOS_MOD_HWI, 0x03)
	Hardware interrupt error code: Insufficient memory for hardware interrupt initialization.
#define	OS_ERRNO_HWI_ALREADY_CREATED   LOS_ERRNO_OS_ERROR(LOS_MOD_HWI, 0x04)
	Hardware interrupt error code: The interrupt has already been created.
#define	OS_ERRNO_HWI_PRIO_INVALID   LOS_ERRNO_OS_ERROR(LOS_MOD_HWI, 0x05)
	Hardware interrupt error code: Invalid interrupt priority.
#define	OS_ERRNO_HWI_MODE_INVALID   LOS_ERRNO_OS_ERROR(LOS_MOD_HWI, 0x06)
	Hardware interrupt error code: Incorrect interrupt creation mode.
#define	OS_ERRNO_HWI_FASTMODE_ALREADY_CREATED   LOS_ERRNO_OS_ERROR(LOS_MOD_HWI, 0x07)
	Hardware interrupt error code: The interrupt has already been created as a fast interrupt.
#define	OS_SYSTICK_CONTROL_REG   0xE000E010
	SysTick control and status register.
#define	OS_NVIC_PRI_BASE   0xE000E400
	Interrupt Priority-Level Registers.
#define	OS_NVIC_SETENA_BASE   0xE000E100
	Interrupt enable register for 0-31.
#define	OS_NVIC_SETPEND_BASE   0xE000E200
	interrupt pending register.
#define	OS_NVIC_INT_ACT_BASE   0xE000E300
	?D??ACTIVE????????
#define	OS_NVIC_CLRENA_BASE   0xE000E180
	Interrupt disable register for 0-31.
#define	OS_NVIC_INT_CTRL   0xE000ED04
	Interrupt control and status register.
#define	OS_NVIC_VTOR   0xE000ED08
	Vector table offset register.
#define	OS_NVIC_AIRCR   0xE000ED0C
	Application interrupt and reset control register
#define	OS_NVIC_EXCPRI_BASE   0xE000ED18
	System exception priority register.
#define	OS_EXC_RESET   1
	Interrupt No.
#define	OS_EXC_NMI   2
	Interrupt No.
#define	OS_EXC_HARD_FAULT   3
	Interrupt No.
#define	OS_EXC_MPU_FAULT   4
	Interrupt No.
#define	OS_EXC_BUS_FAULT   5
	Interrupt No.
#define	OS_EXC_USAGE_FAULT   6
	Interrupt No.
#define	OS_EXC_SVC_CALL   11
	Interrupt No.
#define	OS_EXC_DBG_MONITOR   12
	Interrupt No.
#define	OS_EXC_PEND_SV   14
	Interrupt No.
#define	OS_EXC_SYS_TICK   15
	Interrupt No.
#define	osSetVector(uwNum, pfnVector, uwArg)
	Set interrupt vector table.
类型定义
typedef UINT32	HWI_HANDLE_T
	Define the type of a hardware interrupt number.
typedef UINT16	HWI_PRIOR_T
	Define the type of a hardware interrupt priority.
typedef UINT16	HWI_MODE_T
	Define the type of hardware interrupt mode configurations.
typedef UINT32	HWI_ARG_T
	Define the type of the parameter used for the hardware interrupt creation function.
typedef VOID(*	HWI_PROC_FUNC )(VOID *pParm)
	Define the type of a hardware interrupt handling function.
typedef VOID(**	HWI_VECTOR_FUNC )(void)
	Define the type of a hardware interrupt vector table function.
函数
UINT32	LOS_HwiCreate (HWI_HANDLE_T uwHwiNum, HWI_PRIOR_T usHwiPrio, HWI_MODE_T usMode, HWI_PROC_FUNC pfnHandler, HWI_ARG_T uwArg)
	Create a hardware interrupt.
VOID	osInterrupt (VOID)
	: Hardware interrupt entry function.
UINT32	osIntNumGet (VOID)
	: Get a interrupt number.
VOID	osHwiDefaultHandler (VOID)
	: Default vector handling function.
VOID	Reset_Handler (VOID)
	: Reset the vector table.
VOID	osPendSV (VOID)
	: Pended System Call.
UINTPTR	LOS_IntUnLock (VOID)
	Enable all interrupts.
UINTPTR	LOS_IntLock (VOID)
	Disable all interrupts.
VOID	LOS_IntRestore (UINTPTR uvIntSave)
	Restore interrupts.
VOID	LOS_GetCpuCycle (UINT32 *puwCntHi, UINT32 *puwCntLo)
	Get value from xPSR register.
UINT32	LOS_HwiDelete (HWI_HANDLE_T uwHwiNum)
	Delete hardware interrupt.
变量
UINT32	g_vuwIntCount
	Count of interrupts.
UINT32	_BootVectors []
	Boot interrupt vector table.
HWI_PROC_FUNC	m_pstHwiForm [OS_VECTOR_CNT]
	hardware interrupt form mapping handling function array.
HWI_SLAVE_FUNC	m_pstHwiSlaveForm [OS_VECTOR_CNT]
	hardware interrupt Slave form mapping handling function array.