#!/bin/dash # Some important directories for use later GPIODIR=/sys/class/gpio BOARD="original" disable_capemgr_load=$(grep -c bone_capemgr.uboot_capemgr_enabled=1 /proc/cmdline) machine=$(sed "s/ /_/g;s/\o0//g" /proc/device-tree/model) case "${machine}" in TI_AM335x_BeagleBone_Blue) #overlays built-in, no slots file... OCPDIR=/sys/devices/platform/ocp/ocp* SLOTS=/sys/devices/platform/bone_capemgr/slots unset SLOTS_LOCATION ;; TI_AM335x_PocketBeagle) #overlays built-in, no slots file... OCPDIR=/sys/devices/platform/ocp/ocp* SLOTS=/sys/devices/platform/bone_capemgr/slots unset SLOTS_LOCATION BOARD="TI_AM335x_PocketBeagle" ;; *) #4.1.x where lots of things changed... #use the new location of bone_capemgr for detection.. if [ -d /sys/devices/platform/bone_capemgr/ ] ; then OCPDIR=/sys/devices/platform/ocp/ocp* SLOTS=/sys/devices/platform/bone_capemgr/slots unset SLOTS_LOCATION else if [ ${disable_capemgr_load} -eq 1 ] ; then OCPDIR=/sys/devices/platform/ocp/ocp* SLOTS=/sys/devices/platform/bone_capemgr/slots unset SLOTS_LOCATION else OCPDIR=/sys/devices/ocp.* SLOTS=/sys/devices/bone_capemgr.*/slots SLOTS_LOCATION="old38kernel" fi fi ;; esac # Create mappings between BeagleBone header pins and kernel gpio # numbers. These could be bash arrays or coded in python, but simple # shell constructs are used so this code runs on a minimal system # (including the BusyBox shell in an initrd, ash, and dash) # PIN: function when no cape is loaded # PINMUX: pin multiplexer functions when cape is loaded # INFO: information to pin functions, starts with information for PIN and then PINMUX # CAPE: cape that enables pinmuxing for specific pin, if no cape is set the pin is not modifyable # GPIO: kernel GPIO pin number # PRU: PRU pin number if [ "x${BOARD}" = "xTI_AM335x_PocketBeagle" ] ; then #PocketBeagle P1_01_PIN="power" P1_01_INFO="VIN-AC" P1_01_CAPE="" P1_02_PRU="119" P1_02_GPIO="87" P1_02_PIN="gpio_input" P1_02_PINMUX="default gpio gpio_pu gpio_pd gpio_input pruout pruin" P1_02_INFO="gpio2_23 default gpio2_23 gpio2_23 gpio2_23 gpio2_23 pru1_out9 pru1_in9" P1_02_CAPE="" P1_03_PIN="system" P1_03_INFO="usb1_vbus_out" P1_03_CAPE="" P1_04_PRU="121" P1_04_GPIO="89" P1_04_PIN="gpio" P1_04_PINMUX="default gpio gpio_pu gpio_pd gpio_input pruout pruin" P1_04_INFO="gpio2_25 default gpio2_25 gpio2_25 gpio2_25 gpio2_25 pru1_out11 pru1_in11" P1_04_CAPE="" P1_05_PIN="system" P1_05_INFO="usb1_vbus_in" P1_05_CAPE="" P1_06_PRU="37" P1_06_GPIO="5" P1_06_PIN="spi_cs" P1_06_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi_cs i2c pwm pru_uart" P1_06_INFO="spi0_cs0 default gpio0_5 gpio0_5 gpio0_5 gpio0_5 spi0_cs0 i2c1_scl ehrpwm0_synci pru_uart" P1_06_CAPE="" P1_07_PIN="system" P1_07_INFO="VIN-USB" P1_07_CAPE="" P1_08_PRU="34" P1_08_GPIO="2" P1_08_PIN="spi_sclk" P1_08_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi_sclk uart i2c pwm pru_uart" P1_08_INFO="spi0_sclk default gpio0_2 gpio0_2 gpio0_2 gpio0_2 spi0_sclk uart2_rxd i2c2_sda ehrpwm0a pru_uart" P1_08_CAPE="" P1_09_PIN="system" P1_09_INFO="USB1-DN" P1_09_CAPE="" P1_10_PRU="35" P1_10_GPIO="3" P1_10_PIN="spi" P1_10_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi uart i2c pwm pru_uart" P1_10_INFO="spi0_d0 default gpio0_3 gpio0_3 gpio0_3 gpio0_3 spi0_d0 uart2_txd i2c2_scl ehrpwm0b pru_uart" P1_10_CAPE="" P1_11_PIN="system" P1_11_INFO="USB1-DP" P1_11_CAPE="" P1_12_PRU="36" P1_12_GPIO="4" P1_12_PIN="spi" P1_12_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi i2c pwm pru_uart" P1_12_INFO="spi0_d1 default gpio0_4 gpio0_4 gpio0_4 gpio0_4 spi0_d1 i2c1_sda ehrpwm0_tripzone_input pru_uart" P1_12_CAPE="" P1_13_PIN="system" P1_13_INFO="USB1-ID" P1_13_CAPE="" P1_14_PIN="power" P1_14_INFO="VOUT-3.3V" P1_14_CAPE="" P1_15_PIN="gnd" P1_15_INFO="GND" P1_15_CAPE="" P1_16_PIN="gnd" P1_16_INFO="GND" P1_16_CAPE="" P1_17_PIN="power" P1_17_INFO="VREFN" P1_17_CAPE="" P1_18_PIN="power" P1_18_INFO="VREFP" P1_18_CAPE="" P1_19_PIN="adc" P1_19_INFO="AIN0" P1_19_CAPE="" P1_20_PRU="52" P1_20_GPIO="20" P1_20_PIN="gpio" P1_20_PINMUX="default gpio gpio_pu gpio_pd gpio_input pruin" P1_20_INFO="gpio0_20 default gpio0_20 gpio0_20 gpio0_20 gpio0_20 pru0_in16" P1_20_CAPE="" P1_21_PIN="adc" P1_21_INFO="AIN1" P1_21_CAPE="" P1_22_PIN="gnd" P1_22_INFO="GND" P1_22_CAPE="" P1_23_PIN="adc" P1_23_INFO="AIN2" P1_23_CAPE="" P1_24_PIN="power" P1_24_INFO="VOUT-5V" P1_24_CAPE="" P1_25_PIN="adc" P1_25_INFO="AIN3" P1_25_CAPE="" P1_26_PRU="44" P1_26_GPIO="12" P1_26_PIN="i2c" P1_26_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi_cs can i2c pru_uart" P1_26_INFO="i2c2_sda default gpio0_12 gpio0_12 gpio0_12 gpio0_12 spi1_cs0 dcan0_tx i2c2_sda pru_uart" P1_26_CAPE="" P1_27_PIN="adc" P1_27_INFO="AIN4" P1_27_CAPE="" P1_28_PRU="45" P1_28_GPIO="13" P1_28_PIN="i2c" P1_28_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi_cs can i2c pru_uart" P1_28_INFO="i2c2_scl default gpio0_13 gpio0_13 gpio0_13 gpio0_13 spi1_cs1 dcan0_rx i2c2_scl pru_uart" P1_28_CAPE="" P1_29_PRU="149" P1_29_GPIO="117" P1_29_PIN="pruin" P1_29_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep pruout pruin" P1_29_INFO="pru0_in7 default gpio3_21 gpio3_21 gpio3_21 gpio3_21 eqep0_strobe pru0_out7 pru0_in7" P1_29_CAPE="" P1_30_PRU="75" P1_30_GPIO="43" P1_30_PIN="uart" P1_30_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi_cs uart can i2c pruout pruin" P1_30_INFO="uart0_txd default gpio1_11 gpio1_11 gpio1_11 gpio1_11 spi1_cs1 uart0_txd dcan0_rx i2c2_scl pru1_out15 pru1_in15" P1_30_CAPE="" P1_31_PRU="146" P1_31_GPIO="114" P1_31_PIN="pruin" P1_31_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep pruout pruin" P1_31_INFO="pru0_in4 default gpio3_18 gpio3_18 gpio3_18 gpio3_18 eqep0a_in pru0_out4 pru0_in4" P1_31_CAPE="" P1_32_PRU="74" P1_32_GPIO="42" P1_32_PIN="uart" P1_32_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi_cs uart can i2c pruout pruin" P1_32_INFO="uart0_rxd default gpio1_10 gpio1_10 gpio1_10 gpio1_10 spi1_cs0 uart0_rxd dcan0_tx i2c2_sda pru1_out14 pru1_in14" P1_32_CAPE="" P1_33_PRU="143" P1_33_GPIO="111" P1_33_PIN="pruin" P1_33_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi pwm pruout pruin" P1_33_INFO="pru0_in1 default gpio3_15 gpio3_15 gpio3_15 gpio3_15 spi1_d0 ehrpwm0b pru0_out1 pru0_in1" P1_33_CAPE="" P1_34_PRU="58" P1_34_GPIO="26" P1_34_PIN="gpio" P1_34_PINMUX="default gpio gpio_pu gpio_pd gpio_input pwm" P1_34_INFO="gpio0_26 default gpio0_26 gpio0_26 gpio0_26 gpio0_26 ehrpwm2_tripzone_input" P1_34_CAPE="" P1_35_PRU="120" P1_35_GPIO="88" P1_35_PIN="pruin" P1_35_PINMUX="default gpio gpio_pu gpio_pd gpio_input pruout pruin" P1_35_INFO="pru1_in10 default gpio2_24 gpio2_24 gpio2_24 gpio2_24 pru1_out10 pru1_in10" P1_35_CAPE="" P1_36_PRU="142" P1_36_GPIO="110" P1_36_PIN="pwm" P1_36_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi_sclk pwm pruout pruin" P1_36_INFO="ehrpwm0a default gpio3_14 gpio3_14 gpio3_14 gpio3_14 spi1_sclk ehrpwm0a pru0_out0 pru0_in0" P1_36_CAPE="" P2_01_PRU="82" P2_01_GPIO="50" P2_01_PIN="pwm" P2_01_PINMUX="default gpio gpio_pu gpio_pd gpio_input pwm" P2_01_INFO="ehrpwm1a default gpio1_18 gpio1_18 gpio1_18 gpio1_18 ehrpwm1a" P2_01_CAPE="" P2_02_PRU="91" P2_02_GPIO="59" P2_02_PIN="gpio" P2_02_PINMUX="default gpio gpio_pu gpio_pd gpio_input" P2_02_INFO="gpio1_27 default gpio1_27 gpio1_27 gpio1_27 gpio1_27" P2_02_CAPE="" P2_03_PRU="55" P2_03_GPIO="23" P2_03_PIN="gpio" P2_03_PINMUX="default gpio gpio_pu gpio_pd gpio_input pwm" P2_03_INFO="gpio0_23 default gpio0_23 gpio0_23 gpio0_23 gpio0_23 ehrpwm2b" P2_03_CAPE="" P2_04_PRU="90" P2_04_GPIO="58" P2_04_PIN="gpio" P2_04_PINMUX="default gpio gpio_pu gpio_pd gpio_input" P2_04_INFO="gpio1_26 default gpio1_26 gpio1_26 gpio1_26 gpio1_26" P2_04_CAPE="" P2_05_PRU="62" P2_05_GPIO="30" P2_05_PIN="uart" P2_05_PINMUX="default gpio gpio_pu gpio_pd gpio_input uart" P2_05_INFO="uart4_rxd default gpio0_30 gpio0_30 gpio0_30 gpio0_30 uart4_rxd" P2_05_CAPE="" P2_06_PRU="89" P2_06_GPIO="57" P2_06_PIN="gpio" P2_06_PINMUX="default gpio gpio_pu gpio_pd gpio_input" P2_06_INFO="gpio1_25 default gpio1_25 gpio1_25 gpio1_25 gpio1_25" P2_06_CAPE="" P2_07_PRU="63" P2_07_GPIO="31" P2_07_PIN="uart" P2_07_PINMUX="default gpio gpio_pu gpio_pd gpio_input uart" P2_07_INFO="uart4_txd default gpio0_31 gpio0_31 gpio0_31 gpio0_31 uart4_txd" P2_07_CAPE="" P2_08_PRU="92" P2_08_GPIO="60" P2_08_PIN="gpio" P2_08_PINMUX="default gpio gpio_pu gpio_pd gpio_input" P2_08_INFO="gpio1_28 default gpio1_28 gpio1_28 gpio1_28 gpio1_28" P2_08_CAPE="" P2_09_PRU="47" P2_09_GPIO="15" P2_09_PIN="i2c" P2_09_PINMUX="default gpio gpio_pu gpio_pd gpio_input uart can i2c pru_uart pruin" P2_09_INFO="i2c1_scl default gpio0_15 gpio0_15 gpio0_15 gpio0_15 uart1_txd dcan1_rx i2c1_scl pru_uart pru0_in16" P2_09_CAPE="" P2_10_PRU="84" P2_10_GPIO="52" P2_10_PIN="gpio" P2_10_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep" P2_10_INFO="gpio1_20 default gpio1_20 gpio1_20 gpio1_20 gpio1_20 eqep1a_in" P2_10_CAPE="" P2_11_PRU="46" P2_11_GPIO="14" P2_11_PIN="i2c" P2_11_PINMUX="default gpio gpio_pu gpio_pd gpio_input uart can i2c pru_uart pruin" P2_11_INFO="i2c1_sda default gpio0_14 gpio0_14 gpio0_14 gpio0_14 uart1_rxd dcan1_tx i2c1_sda pru_uart pru1_in16" P2_11_CAPE="" P2_12_PIN="system" P2_12_INFO="POWER_BUTTON" P2_12_CAPE="" P2_13_PIN="power" P2_13_INFO="VOUT-5V" P2_13_CAPE="" P2_14_PIN="power" P2_14_INFO="BAT-VIN" P2_14_CAPE="" P2_15_PIN="gnd" P2_15_INFO="GND" P2_15_CAPE="" P2_16_PIN="power" P2_16_INFO="BAT-TEMP" P2_16_CAPE="" P2_17_PRU="97" P2_17_GPIO="65" P2_17_PIN="gpio" P2_17_PINMUX="default gpio gpio_pu gpio_pd gpio_input" P2_17_INFO="gpio2_1 default gpio2_1 gpio2_1 gpio2_1 gpio2_1" P2_17_CAPE="" P2_18_PRU="79" P2_18_GPIO="47" P2_18_PIN="gpio" P2_18_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep pru_ecap pruin" P2_18_INFO="gpio1_15 default gpio1_15 gpio1_15 gpio1_15 gpio1_15 eqep2_strobe pru_ecap pru0_in15" P2_18_CAPE="" P2_19_PRU="59" P2_19_GPIO="27" P2_19_PIN="gpio" P2_19_PINMUX="default gpio gpio_pu gpio_pd gpio_input pwm" P2_19_INFO="gpio0_27 default gpio0_27 gpio0_27 gpio0_27 gpio0_27 ehrpwm0_synco" P2_19_CAPE="" P2_20_PRU="96" P2_20_GPIO="64" P2_20_PIN="gpio" P2_20_PINMUX="default gpio gpio_pu gpio_pd gpio_input" P2_20_INFO="gpio2_0 default gpio2_0 gpio2_0 gpio2_0 gpio2_0" P2_20_CAPE="" P2_21_PIN="gnd" P2_21_INFO="GND" P2_21_CAPE="" P2_22_PRU="78" P2_22_GPIO="46" P2_22_PIN="gpio" P2_22_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep pruin" P2_22_INFO="gpio1_14 default gpio1_14 gpio1_14 gpio1_14 gpio1_14 eqep2_index pru0_in14" P2_22_CAPE="" P2_23_PIN="power" P2_23_INFO="VOUT-3.3V" P2_23_CAPE="" P2_24_PRU="76" P2_24_GPIO="44" P2_24_PIN="gpio" P2_24_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep pruout" P2_24_INFO="gpio1_12 default gpio1_12 gpio1_12 gpio1_12 gpio1_12 eqep2a_in pru0_out14" P2_24_CAPE="" P2_25_PRU="73" P2_25_GPIO="41" P2_25_PIN="spi" P2_25_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi spi_cs uart can i2c" P2_25_INFO="spi1_d1 default gpio1_9 gpio1_9 gpio1_9 gpio1_9 spi1_d1 spi1_cs0 uart4_txd dcan1_rx i2c1_scl" P2_25_CAPE="" P2_26_PIN="system" P2_26_INFO="RESET#" P2_26_CAPE="" P2_27_PRU="72" P2_27_GPIO="40" P2_27_PIN="spi" P2_27_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi uart can i2c" P2_27_INFO="spi1_d0 default gpio1_8 gpio1_8 gpio1_8 gpio1_8 spi1_d0 uart4_rxd dcan1_tx i2c1_sda" P2_27_CAPE="" P2_28_PRU="148" P2_28_GPIO="116" P2_28_PIN="pruin" P2_28_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep pruout pruin" P2_28_INFO="pru0_in6 default gpio3_20 gpio3_20 gpio3_20 gpio3_20 eqep0_index pru0_out6 pru0_in6" P2_28_CAPE="" P2_29_PRU="39" P2_29_GPIO="7" P2_29_PIN="spi_sclk" P2_29_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi_cs spi_sclk uart pwm pru_ecap" P2_29_INFO="spi1_sclk default gpio0_7 gpio0_7 gpio0_7 gpio0_7 spi1_cs1 spi1_sclk uart3_txd ecap0_in_pwm0_out pru_ecap" P2_29_CAPE="" P2_30_PRU="145" P2_30_GPIO="113" P2_30_PIN="pruin" P2_30_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi_cs pwm pruout pruin" P2_30_INFO="pru0_in3 default gpio3_17 gpio3_17 gpio3_17 gpio3_17 spi1_cs0 ehrpwm0_synci pru0_out3 pru0_in3" P2_30_CAPE="" P2_31_PRU="51" P2_31_GPIO="19" P2_31_PIN="spi_cs" P2_31_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi_cs pruin" P2_31_INFO="spi1_cs1 default gpio0_19 gpio0_19 gpio0_19 gpio0_19 spi1_cs1 pru1_in16" P2_31_CAPE="" P2_32_PRU="144" P2_32_GPIO="112" P2_32_PIN="pruin" P2_32_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi pwm pruout pruin" P2_32_INFO="pru0_in2 default gpio3_16 gpio3_16 gpio3_16 gpio3_16 spi1_d1 ehrpwm0_tripzone_input pru0_out2 pru0_in2" P2_32_CAPE="" P2_33_PRU="77" P2_33_GPIO="45" P2_33_PIN="gpio" P2_33_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep pruout" P2_33_INFO="gpio1_13 default gpio1_13 gpio1_13 gpio1_13 gpio1_13 eqep2b_in pru0_out15" P2_33_CAPE="" P2_34_PRU="147" P2_34_GPIO="115" P2_34_PIN="pruin" P2_34_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep pruout pruin" P2_34_INFO="pru0_in5 default gpio3_19 gpio3_19 gpio3_19 gpio3_19 eqep0b_in pru0_out5 pru0_in5" P2_34_CAPE="" P2_35_PRU="118" P2_35_GPIO="86" P2_35_PIN="gpio_input" P2_35_PINMUX="default gpio gpio_pu gpio_pd gpio_input pruout pruin" P2_35_INFO="gpio2_22 default gpio2_22 gpio2_22 gpio2_22 gpio2_22 pru1_out8 pru1_in8" P2_35_CAPE="" P2_36_PIN="adc" P2_36_INFO="AIN7" P2_36_CAPE="" else P8_01_PIN="gnd" P8_01_INFO="GND" P8_01_CAPE="" P8_02_PIN="gnd" P8_02_INFO="GND" P8_02_CAPE="" P8_03_PRU="70" P8_03_GPIO="38" P8_03_PIN="emmc" P8_03_PINMUX="default gpio gpio_pu gpio_pd gpio_input" P8_03_INFO="gpio1_6 default gpio1_6 gpio1_6 gpio1_6 gpio1_6" P8_03_CAPE="" P8_04_PRU="71" P8_04_GPIO="39" P8_04_PIN="emmc" P8_04_PINMUX="default gpio gpio_pu gpio_pd gpio_input" P8_04_INFO="gpio1_7 default gpio1_7 gpio1_7 gpio1_7 gpio1_7" P8_04_CAPE="" P8_05_PRU="66" P8_05_GPIO="34" P8_05_PIN="emmc" P8_05_PINMUX="default gpio gpio_pu gpio_pd gpio_input" P8_05_INFO="gpio1_2 default gpio1_2 gpio1_2 gpio1_2 gpio1_2" P8_05_CAPE="" P8_06_PRU="67" P8_06_GPIO="35" P8_06_PIN="emmc" P8_06_PINMUX="default gpio gpio_pu gpio_pd gpio_input" P8_06_INFO="gpio1_3 default gpio1_3 gpio1_3 gpio1_3 gpio1_3" P8_06_CAPE="" P8_07_PRU="98" P8_07_GPIO="66" P8_07_PIN="gpio" P8_07_PINMUX="default gpio gpio_pu gpio_pd gpio_input timer" P8_07_INFO="gpio2_2 default gpio2_2 gpio2_2 gpio2_2 gpio2_2 timer4" P8_07_CAPE="" P8_08_PRU="99" P8_08_GPIO="67" P8_08_PIN="gpio" P8_08_PINMUX="default gpio gpio_pu gpio_pd gpio_input timer" P8_08_INFO="gpio2_3 default gpio2_3 gpio2_3 gpio2_3 gpio2_3 timer7" P8_08_CAPE="" P8_09_PRU="101" P8_09_GPIO="69" P8_09_PIN="gpio" P8_09_PINMUX="default gpio gpio_pu gpio_pd gpio_input timer" P8_09_INFO="gpio2_5 default gpio2_5 gpio2_5 gpio2_5 gpio2_5 timer5" P8_09_CAPE="" P8_10_PRU="100" P8_10_GPIO="68" P8_10_PIN="gpio" P8_10_PINMUX="default gpio gpio_pu gpio_pd gpio_input timer" P8_10_INFO="gpio2_4 default gpio2_4 gpio2_4 gpio2_4 gpio2_4 timer6" P8_10_CAPE="" P8_11_PRU="77" P8_11_GPIO="45" P8_11_PIN="gpio" P8_11_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep pruout" P8_11_INFO="gpio1_13 default gpio1_13 gpio1_13 gpio1_13 gpio1_13 eqep2b_in pru0_out15" P8_11_CAPE="" P8_12_PRU="76" P8_12_GPIO="44" P8_12_PIN="gpio" P8_12_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep pruout" P8_12_INFO="gpio1_12 default gpio1_12 gpio1_12 gpio1_12 gpio1_12 eqep2a_in pru0_out14" P8_12_CAPE="" P8_13_PRU="55" P8_13_GPIO="23" P8_13_PIN="gpio" P8_13_PINMUX="default gpio gpio_pu gpio_pd gpio_input pwm" P8_13_INFO="gpio0_23 default gpio0_23 gpio0_23 gpio0_23 gpio0_23 ehrpwm2b" P8_13_CAPE="" P8_14_PRU="58" P8_14_GPIO="26" P8_14_PIN="gpio" P8_14_PINMUX="default gpio gpio_pu gpio_pd gpio_input pwm" P8_14_INFO="gpio0_26 default gpio0_26 gpio0_26 gpio0_26 gpio0_26 ehrpwm2_tripzone_input" P8_14_CAPE="" P8_15_PRU="79" P8_15_GPIO="47" P8_15_PIN="gpio" P8_15_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep pru_ecap pruin" P8_15_INFO="gpio1_15 default gpio1_15 gpio1_15 gpio1_15 gpio1_15 eqep2_strobe pru_ecap pru0_in15" P8_15_CAPE="" P8_16_PRU="78" P8_16_GPIO="46" P8_16_PIN="gpio" P8_16_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep pruin" P8_16_INFO="gpio1_14 default gpio1_14 gpio1_14 gpio1_14 gpio1_14 eqep2_index pru0_in14" P8_16_CAPE="" P8_17_PRU="59" P8_17_GPIO="27" P8_17_PIN="gpio" P8_17_PINMUX="default gpio gpio_pu gpio_pd gpio_input pwm" P8_17_INFO="gpio0_27 default gpio0_27 gpio0_27 gpio0_27 gpio0_27 ehrpwm0_synco" P8_17_CAPE="" P8_18_PRU="97" P8_18_GPIO="65" P8_18_PIN="gpio" P8_18_PINMUX="default gpio gpio_pu gpio_pd gpio_input" P8_18_INFO="gpio2_1 default gpio2_1 gpio2_1 gpio2_1 gpio2_1" P8_18_CAPE="" P8_19_PRU="54" P8_19_GPIO="22" P8_19_PIN="gpio" P8_19_PINMUX="default gpio gpio_pu gpio_pd gpio_input pwm" P8_19_INFO="gpio0_22 default gpio0_22 gpio0_22 gpio0_22 gpio0_22 ehrpwm2a" P8_19_CAPE="" P8_20_PRU="95" P8_20_GPIO="63" P8_20_PIN="emmc" P8_20_PINMUX="default gpio gpio_pu gpio_pd gpio_input pruout pruin" P8_20_INFO="gpio1_31 default gpio1_31 gpio1_31 gpio1_31 gpio1_31 pru1_out13 pru1_in13" P8_20_CAPE="" P8_21_PRU="94" P8_21_GPIO="62" P8_21_PIN="emmc" P8_21_PINMUX="default gpio gpio_pu gpio_pd gpio_input pruout pruin" P8_21_INFO="gpio1_30 default gpio1_30 gpio1_30 gpio1_30 gpio1_30 pru1_out12 pru1_in12" P8_21_CAPE="" P8_22_PRU="69" P8_22_GPIO="37" P8_22_PIN="emmc" P8_22_PINMUX="default gpio gpio_pu gpio_pd gpio_input" P8_22_INFO="gpio1_5 default gpio1_5 gpio1_5 gpio1_5 gpio1_5" P8_22_CAPE="" P8_23_PRU="68" P8_23_GPIO="36" P8_23_PIN="emmc" P8_23_PINMUX="default gpio gpio_pu gpio_pd gpio_input" P8_23_INFO="gpio1_4 default gpio1_4 gpio1_4 gpio1_4 gpio1_4" P8_23_CAPE="" P8_24_PRU="65" P8_24_GPIO="33" P8_24_PIN="emmc" P8_24_PINMUX="default gpio gpio_pu gpio_pd gpio_input" P8_24_INFO="gpio1_1 default gpio1_1 gpio1_1 gpio1_1 gpio1_1" P8_24_CAPE="" P8_25_PRU="64" P8_25_GPIO="32" P8_25_PIN="emmc" P8_25_PINMUX="default gpio gpio_pu gpio_pd gpio_input" P8_25_INFO="gpio1_0 default gpio1_0 gpio1_0 gpio1_0 gpio1_0" P8_25_CAPE="" P8_26_PRU="93" P8_26_GPIO="61" P8_26_PIN="gpio" P8_26_PINMUX="default gpio gpio_pu gpio_pd gpio_input" P8_26_INFO="gpio1_29 default gpio1_29 gpio1_29 gpio1_29 gpio1_29" P8_26_CAPE="" P8_27_PRU="118" P8_27_GPIO="86" P8_27_PIN="hdmi" P8_27_PINMUX="default gpio gpio_pu gpio_pd gpio_input pruout pruin" P8_27_INFO="gpio2_22 default gpio2_22 gpio2_22 gpio2_22 gpio2_22 pru1_out8 pru1_in8" P8_27_CAPE="" P8_28_PRU="120" P8_28_GPIO="88" P8_28_PIN="hdmi" P8_28_PINMUX="default gpio gpio_pu gpio_pd gpio_input pruout pruin" P8_28_INFO="gpio2_24 default gpio2_24 gpio2_24 gpio2_24 gpio2_24 pru1_out10 pru1_in10" P8_28_CAPE="" P8_29_PRU="119" P8_29_GPIO="87" P8_29_PIN="hdmi" P8_29_PINMUX="default gpio gpio_pu gpio_pd gpio_input pruout pruin" P8_29_INFO="gpio2_23 default gpio2_23 gpio2_23 gpio2_23 gpio2_23 pru1_out9 pru1_in9" P8_29_CAPE="" P8_30_PRU="121" P8_30_GPIO="89" P8_30_PIN="hdmi" P8_30_PINMUX="default gpio gpio_pu gpio_pd gpio_input pruout pruin" P8_30_INFO="gpio2_25 default gpio2_25 gpio2_25 gpio2_25 gpio2_25 pru1_out11 pru1_in11" P8_30_CAPE="" P8_31_PRU="42" P8_31_GPIO="10" P8_31_PIN="hdmi" P8_31_PINMUX="default gpio gpio_pu gpio_pd gpio_input uart qep" P8_31_INFO="gpio0_10 default gpio0_10 gpio0_10 gpio0_10 gpio0_10 uart5_rxd eqep1_index" P8_31_CAPE="" P8_32_PRU="43" P8_32_GPIO="11" P8_32_PIN="hdmi" P8_32_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep" P8_32_INFO="gpio0_11 default gpio0_11 gpio0_11 gpio0_11 gpio0_11 eqep1_strobe" P8_32_CAPE="" P8_33_PRU="41" P8_33_GPIO="9" P8_33_PIN="hdmi" P8_33_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep" P8_33_INFO="gpio0_9 default gpio0_9 gpio0_9 gpio0_9 gpio0_9 eqep1b_in" P8_33_CAPE="" P8_34_PRU="113" P8_34_GPIO="81" P8_34_PIN="hdmi" P8_34_PINMUX="default gpio gpio_pu gpio_pd gpio_input pwm" P8_34_INFO="gpio2_17 default gpio2_17 gpio2_17 gpio2_17 gpio2_17 ehrpwm1b" P8_34_CAPE="" P8_35_PRU="40" P8_35_GPIO="8" P8_35_PIN="hdmi" P8_35_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep" P8_35_INFO="gpio0_8 default gpio0_8 gpio0_8 gpio0_8 gpio0_8 eqep1a_in" P8_35_CAPE="" P8_36_PRU="112" P8_36_GPIO="80" P8_36_PIN="hdmi" P8_36_PINMUX="default gpio gpio_pu gpio_pd gpio_input pwm" P8_36_INFO="gpio2_16 default gpio2_16 gpio2_16 gpio2_16 gpio2_16 ehrpwm1a" P8_36_CAPE="" P8_37_PRU="110" P8_37_GPIO="78" P8_37_PIN="hdmi" P8_37_PINMUX="default gpio gpio_pu gpio_pd gpio_input uart pwm" P8_37_INFO="gpio2_14 default gpio2_14 gpio2_14 gpio2_14 gpio2_14 uart5_txd ehrpwm1_tripzone_input" P8_37_CAPE="" P8_38_PRU="111" P8_38_GPIO="79" P8_38_PIN="hdmi" P8_38_PINMUX="default gpio gpio_pu gpio_pd gpio_input uart pwm" P8_38_INFO="gpio2_15 default gpio2_15 gpio2_15 gpio2_15 gpio2_15 uart5_rxd ehrpwm0_synco" P8_38_CAPE="" P8_39_PRU="108" P8_39_GPIO="76" P8_39_PIN="hdmi" P8_39_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep pruout pruin" P8_39_INFO="gpio2_12 default gpio2_12 gpio2_12 gpio2_12 gpio2_12 eqep2_index pru1_out6 pru1_in6" P8_39_CAPE="" P8_40_PRU="109" P8_40_GPIO="77" P8_40_PIN="hdmi" P8_40_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep pruout pruin" P8_40_INFO="gpio2_13 default gpio2_13 gpio2_13 gpio2_13 gpio2_13 eqep2_strobe pru1_out7 pru1_in7" P8_40_CAPE="" P8_41_PRU="106" P8_41_GPIO="74" P8_41_PIN="hdmi" P8_41_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep pruout pruin" P8_41_INFO="gpio2_10 default gpio2_10 gpio2_10 gpio2_10 gpio2_10 eqep2a_in pru1_out4 pru1_in4" P8_41_CAPE="" P8_42_PRU="107" P8_42_GPIO="75" P8_42_PIN="hdmi" P8_42_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep pruout pruin" P8_42_INFO="gpio2_11 default gpio2_11 gpio2_11 gpio2_11 gpio2_11 eqep2b_in pru1_out5 pru1_in5" P8_42_CAPE="" P8_43_PRU="104" P8_43_GPIO="72" P8_43_PIN="hdmi" P8_43_PINMUX="default gpio gpio_pu gpio_pd gpio_input pwm pruout pruin" P8_43_INFO="gpio2_8 default gpio2_8 gpio2_8 gpio2_8 gpio2_8 ehrpwm2_tripzone_input pru1_out2 pru1_in2" P8_43_CAPE="" P8_44_PRU="105" P8_44_GPIO="73" P8_44_PIN="hdmi" P8_44_PINMUX="default gpio gpio_pu gpio_pd gpio_input pwm pruout pruin" P8_44_INFO="gpio2_9 default gpio2_9 gpio2_9 gpio2_9 gpio2_9 ehrpwm0_synco pru1_out3 pru1_in3" P8_44_CAPE="" P8_45_PRU="102" P8_45_GPIO="70" P8_45_PIN="hdmi" P8_45_PINMUX="default gpio gpio_pu gpio_pd gpio_input pwm pruout pruin" P8_45_INFO="gpio2_6 default gpio2_6 gpio2_6 gpio2_6 gpio2_6 ehrpwm2a pru1_out0 pru1_in0" P8_45_CAPE="" P8_46_PRU="103" P8_46_GPIO="71" P8_46_PIN="hdmi" P8_46_PINMUX="default gpio gpio_pu gpio_pd gpio_input pwm pruout pruin" P8_46_INFO="gpio2_7 default gpio2_7 gpio2_7 gpio2_7 gpio2_7 ehrpwm2b pru1_out1 pru1_in1" P8_46_CAPE="" P9_01_PIN="gnd" P9_01_INFO="GND" P9_01_CAPE="" P9_02_PIN="gnd" P9_02_INFO="GND" P9_02_CAPE="" P9_03_PIN="power" P9_03_INFO="3V3" P9_03_CAPE="" P9_04_PIN="power" P9_04_INFO="3V3" P9_04_CAPE="" P9_05_PIN="power" P9_05_INFO="VDD_5V" P9_05_CAPE="" P9_06_PIN="power" P9_06_INFO="VDD_5V" P9_06_CAPE="" P9_07_PIN="power" P9_07_INFO="SYS_5V" P9_07_CAPE="" P9_08_PIN="power" P9_08_INFO="SYS_5V" P9_08_CAPE="" P9_09_PIN="system" P9_09_INFO="PWR_BUT" P9_09_CAPE="" P9_10_PIN="system" P9_10_INFO="RSTn" P9_10_CAPE="" P9_11_PRU="62" P9_11_GPIO="30" P9_11_PIN="gpio" P9_11_PINMUX="default gpio gpio_pu gpio_pd gpio_input uart" P9_11_INFO="gpio0_30 default gpio0_30 gpio0_30 gpio0_30 gpio0_30 uart4_rxd" P9_11_CAPE="" P9_12_PRU="92" P9_12_GPIO="60" P9_12_PIN="gpio" P9_12_PINMUX="default gpio gpio_pu gpio_pd gpio_input" P9_12_INFO="gpio1_28 default gpio1_28 gpio1_28 gpio1_28 gpio1_28" P9_12_CAPE="" P9_13_PRU="63" P9_13_GPIO="31" P9_13_PIN="gpio" P9_13_PINMUX="default gpio gpio_pu gpio_pd gpio_input uart" P9_13_INFO="gpio0_31 default gpio0_31 gpio0_31 gpio0_31 gpio0_31 uart4_txd" P9_13_CAPE="" P9_14_PRU="82" P9_14_GPIO="50" P9_14_PIN="gpio" P9_14_PINMUX="default gpio gpio_pu gpio_pd gpio_input pwm" P9_14_INFO="gpio1_18 default gpio1_18 gpio1_18 gpio1_18 gpio1_18 ehrpwm1a" P9_14_CAPE="" P9_15_PRU="80" P9_15_GPIO="48" P9_15_PIN="gpio" P9_15_PINMUX="default gpio gpio_pu gpio_pd gpio_input pwm" P9_15_INFO="gpio1_16 default gpio1_16 gpio1_16 gpio1_16 gpio1_16 ehrpwm1_tripzone_input" P9_15_CAPE="" P9_16_PRU="83" P9_16_GPIO="51" P9_16_PIN="gpio" P9_16_PINMUX="default gpio gpio_pu gpio_pd gpio_input pwm" P9_16_INFO="gpio1_19 default gpio1_19 gpio1_19 gpio1_19 gpio1_19 ehrpwm1b" P9_16_CAPE="" P9_17_PRU="37" P9_17_GPIO="5" P9_17_PIN="gpio" P9_17_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi_cs i2c pwm pru_uart" P9_17_INFO="gpio0_5 default gpio0_5 gpio0_5 gpio0_5 gpio0_5 spi0_cs0 i2c1_scl ehrpwm0_synci pru_uart" P9_17_CAPE="" P9_18_PRU="36" P9_18_GPIO="4" P9_18_PIN="gpio" P9_18_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi i2c pwm pru_uart" P9_18_INFO="gpio0_4 default gpio0_4 gpio0_4 gpio0_4 gpio0_4 spi0_d1 i2c1_sda ehrpwm0_tripzone_input pru_uart" P9_18_CAPE="" P9_19_PRU="45" P9_19_GPIO="13" P9_19_PIN="i2c" P9_19_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi_cs can i2c pru_uart timer" P9_19_INFO="i2c2_scl default gpio0_13 gpio0_13 gpio0_13 gpio0_13 spi1_cs1 dcan0_rx i2c2_scl pru_uart timer5" P9_19_CAPE="" P9_20_PRU="44" P9_20_GPIO="12" P9_20_PIN="i2c" P9_20_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi_cs can i2c pru_uart timer" P9_20_INFO="i2c2_sda default gpio0_12 gpio0_12 gpio0_12 gpio0_12 spi1_cs0 dcan0_tx i2c2_sda pru_uart timer6" P9_20_CAPE="" P9_21_PRU="35" P9_21_GPIO="3" P9_21_PIN="gpio" P9_21_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi uart i2c pwm pru_uart" P9_21_INFO="gpio0_3 default gpio0_3 gpio0_3 gpio0_3 gpio0_3 spi0_d0 uart2_txd i2c2_scl ehrpwm0b pru_uart" P9_21_CAPE="" P9_22_PRU="34" P9_22_GPIO="2" P9_22_PIN="gpio" P9_22_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi_sclk uart i2c pwm pru_uart" P9_22_INFO="gpio0_2 default gpio0_2 gpio0_2 gpio0_2 gpio0_2 spi0_sclk uart2_rxd i2c2_sda ehrpwm0a pru_uart" P9_22_CAPE="" P9_23_PRU="81" P9_23_GPIO="49" P9_23_PIN="gpio" P9_23_PINMUX="default gpio gpio_pu gpio_pd gpio_input pwm" P9_23_INFO="gpio1_17 default gpio1_17 gpio1_17 gpio1_17 gpio1_17 ehrpwm0_synco" P9_23_CAPE="" P9_24_PRU="47" P9_24_GPIO="15" P9_24_PIN="gpio" P9_24_PINMUX="default gpio gpio_pu gpio_pd gpio_input uart can i2c pru_uart pruin" P9_24_INFO="gpio0_15 default gpio0_15 gpio0_15 gpio0_15 gpio0_15 uart1_txd dcan1_rx i2c1_scl pru_uart pru0_in16" P9_24_CAPE="" P9_25_PRU="149" P9_25_GPIO="117" P9_25_PIN="audio" P9_25_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep pruout pruin" P9_25_INFO="gpio3_21 default gpio3_21 gpio3_21 gpio3_21 gpio3_21 eqep0_strobe pru0_out7 pru0_in7" P9_25_CAPE="" P9_26_PRU="46" P9_26_GPIO="14" P9_26_PIN="gpio" P9_26_PINMUX="default gpio gpio_pu gpio_pd gpio_input uart can i2c pru_uart pruin" P9_26_INFO="gpio0_14 default gpio0_14 gpio0_14 gpio0_14 gpio0_14 uart1_rxd dcan1_tx i2c1_sda pru_uart pru1_in16" P9_26_CAPE="" P9_27_PRU="147" P9_27_GPIO="115" P9_27_PIN="gpio" P9_27_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep pruout pruin" P9_27_INFO="gpio3_19 default gpio3_19 gpio3_19 gpio3_19 gpio3_19 eqep0b_in pru0_out5 pru0_in5" P9_27_CAPE="" P9_28_PRU="145" P9_28_GPIO="113" P9_28_PIN="audio" P9_28_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi_cs pwm pwm2 pruout pruin" P9_28_INFO="gpio3_17 default gpio3_17 gpio3_17 gpio3_17 gpio3_17 spi1_cs0 ehrpwm0_synci ecap2_in_pwm2_out pru0_out3 pru0_in3" P9_28_CAPE="" P9_29_PRU="143" P9_29_GPIO="111" P9_29_PIN="audio" P9_29_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi pwm pruout pruin" P9_29_INFO="gpio3_15 default gpio3_15 gpio3_15 gpio3_15 gpio3_15 spi1_d0 ehrpwm0b pru0_out1 pru0_in1" P9_29_CAPE="" P9_30_PRU="144" P9_30_GPIO="112" P9_30_PIN="gpio" P9_30_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi pwm pruout pruin" P9_30_INFO="gpio3_16 default gpio3_16 gpio3_16 gpio3_16 gpio3_16 spi1_d1 ehrpwm0_tripzone_input pru0_out2 pru0_in2" P9_30_CAPE="" P9_31_PRU="142" P9_31_GPIO="110" P9_31_PIN="audio" P9_31_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi_sclk pwm pruout pruin" P9_31_INFO="gpio3_14 default gpio3_14 gpio3_14 gpio3_14 gpio3_14 spi1_sclk ehrpwm0a pru0_out0 pru0_in0" P9_31_CAPE="" P9_32_PIN="power" P9_32_INFO="VADC" P9_32_CAPE="" P9_33_PIN="adc" P9_33_INFO="AIN4" P9_33_CAPE="" P9_34_PIN="gnd" P9_34_INFO="AGND" P9_34_CAPE="" P9_35_PIN="adc" P9_35_INFO="AIN6" P9_35_CAPE="" P9_36_PIN="adc" P9_36_INFO="AIN5" P9_36_CAPE="" P9_37_PIN="adc" P9_37_INFO="AIN2" P9_37_CAPE="" P9_38_PIN="adc" P9_38_INFO="AIN3" P9_38_CAPE="" P9_39_PIN="adc" P9_39_INFO="AIN0" P9_39_CAPE="" P9_40_PIN="adc" P9_40_INFO="AIN1" P9_40_CAPE="" P9_41_PRU="52" P9_41_GPIO="20" P9_41_PIN="gpio" P9_41_PINMUX="default gpio gpio_pu gpio_pd gpio_input timer pruin" P9_41_INFO="gpio0_20 default gpio0_20 gpio0_20 gpio0_20 gpio0_20 timer7 pru0_in16" P9_41_CAPE="" P9_91_PRU="148" P9_91_GPIO="116" P9_91_PIN="gpio" P9_91_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep pruout pruin" P9_91_INFO="gpio3_20 default gpio3_20 gpio3_20 gpio3_20 gpio3_20 eqep0_index pru0_out6 pru0_in6" P9_91_CAPE="" P9_42_PRU="39" P9_42_GPIO="7" P9_42_PIN="gpio" P9_42_PINMUX="default gpio gpio_pu gpio_pd gpio_input spi_cs spi_sclk uart pwm pru_ecap" P9_42_INFO="gpio0_7 default gpio0_7 gpio0_7 gpio0_7 gpio0_7 spi1_cs1 spi1_sclk uart3_txd ecap0_in_pwm0_out pru_ecap" P9_42_CAPE="" P9_92_PRU="146" P9_92_GPIO="114" P9_92_PIN="gpio" P9_92_PINMUX="default gpio gpio_pu gpio_pd gpio_input qep pruout pruin" P9_92_INFO="gpio3_18 default gpio3_18 gpio3_18 gpio3_18 gpio3_18 eqep0a_in pru0_out4 pru0_in4" P9_92_CAPE="" P9_43_PIN="gnd" P9_43_INFO="GND" P9_43_CAPE="" P9_44_PIN="gnd" P9_44_INFO="GND" P9_44_CAPE="" P9_45_PIN="gnd" P9_45_INFO="GND" P9_45_CAPE="" P9_46_PIN="gnd" P9_46_INFO="GND" P9_46_CAPE="" fi echo_err () { echo "$@" 1>&2 } echo_std () { echo "$@" } echo_dbg () { if [ -n "$DEBUG" ] ; then echo "$@" 1>&2 fi } usage () { NAME="$(basename $0)" cat <<- EOF $NAME [-a] Set to , configuring pin multiplexing and optionally configuring the gpio. Valid strings vary based on , however all pins have a default and gpio mode. The default mode is the reset state of the pin, with the pin mux set to gpio, the pull up/down resistor set to it's reset value, and the pin receive buffer enabled. To setup gpio, the following strings are all valid: gpio : Set pinmux to gpio, existing direction and value unchanged in | input: Set pinmux to gpio and set gpio direction to input out | output : Set pinmux to gpio and set gpio direction to output hi | high | 1 : Set pinmux to gpio and set gpio direction to output driving high lo | low | 0 : Set pinmux to gpio and set gpio direction to output driving low To enable pull-up or pull-down resistors, a suffex may be appended to any of the above gpio modes. Use + or _pu to enable the pull-up resistor and - or _pd to enable the pull-down resistor. Examples: in+ | in_pu: Enable pull-up resistor and setup pin as per input, above. hi- | hi_pd: Enable pull-down resistor and setup pin as per high, above. While the pull-down resistor will be enabled, it will not do much until application software changes the pin direction to input. $NAME -l list valid values for $NAME -i show information to $NAME -q query pin and report configuration details $NAME -f [file] Read list of pin configurations from file, one per line Comments and white-space are allowed With no file, or when file is -, read standard input. $NAME -h Display this help text EOF } # Be friendly about pin naming conventions # $1 = Pin name fixup_pin () { local PIN # Use ash-friendly substitutions: ${ % } ${ # } case "$1" in [pP]*) X="${1#?}" ;; *) X="$1" ;; esac case "$X" in # There is no pin 00 *00) echo_err "Invalid pin: $1" exit 1 ;; # Missing separator, single digit pin number [1-9][1-9]) PIN=P${X%?}_0${X#?} ;; # Missing separator, two digit pin number [1-9][0-49][0-9]) PIN=P${X%??}_${X#?} ;; # Single digit pin number [1-9][!0-9][1-9]) PIN=P${X%??}_0${X#??} ;; # Two digit pin number [1-9][!0-9][0-49][0-9]) PIN=P${X%???}_${X#??} ;; # Anything else is an error *) echo_err "Invalid pin: \"$1\" \"$X\"" exit 1 ;; esac echo $PIN } # Be friendly about overlay naming conventions # $1 = Overlay name fixup_overlay () { case "$1" in [oO][vV]|[oO][vV][eE][rR][lL][aA][yY]) echo "1" ;; [cC][aA][pP][eE]) echo "1" ;; *) echo "0" ;; esac } # List the default mode value # $1 = Pin Name listmode () { PIN=$(fixup_pin $1) eval MODES="\$${PIN}_PIN" if [ -z "$MODES" ] ; then echo_err "Unknown pin name: $1" exit 1 else echo "$MODES" fi } # List the legal mode values for a pin # $1 = Pin Name listmodes () { PIN=$(fixup_pin $1) eval MODES="\$${PIN}_PINMUX" eval INFO="\$${PIN}_INFO" if [ -z "$MODES" ] ; then echo_err "Pin is not modifiable: $1 $INFO" exit 1 else echo "$MODES" fi } # List the capes for a pin # $1 = Pin Name listcape () { PIN=$(fixup_pin $1) eval CAPE="\$${PIN}_CAPE" if [ -z "$CAPE" ] ; then echo_err "Pin has no cape: $1" exit 1 else echo "$CAPE" fi } # List info for a pin # $1 = Pin Name listinfo () { PIN=$(fixup_pin $1) eval INFO="\$${PIN}_INFO" echo "$INFO" } # List the kernel GPIO id for a pin # $1 = Pin Name listgpio () { PIN=$(fixup_pin $1) eval GPIO="\$${PIN}_GPIO" echo "$GPIO" } # List ther PRU GPIO id for a pin # $1 = Pin Name listpru () { PIN=$(fixup_pin $1) eval PRU="\$${PIN}_PRU" echo "$PRU" } # List current pin settings # $1 = Pin name query_pin () { set -e PIN=$(fixup_pin $1) MODES="$(listmodes $PIN)" check_pin $PIN if [ ! "x${SLOTS_LOCATION}" = "xold38kernel" ] ; then # Expand filename using shell globbing for FILE in $OCPDIR${PIN}_pinmux/state ; do if [ -r $FILE ] ; then read MODE JUNK < $FILE else echo_err "Cannot read pinmux file: $FILE" exit 1 fi done else # Expand filename using shell globbing for FILE in $OCPDIR/${PIN}_pinmux.*/state ; do if [ -r $FILE ] ; then read MODE JUNK < $FILE else echo_err "Cannot read pinmux file: $FILE" exit 1 fi done fi case "$MODE" in default|gpio*) VALUE=pin_not_exported DIR=pin_not_exported eval GPIO="\$${PIN}_GPIO" FILE="$GPIODIR/gpio$GPIO/value" [ -r $FILE ] && read VALUE JUNK < $FILE FILE="$GPIODIR/gpio$GPIO/direction" [ -r $FILE ] && read DIR JUNK < $FILE echo "$PIN Mode: $MODE Direction: $DIR Value: $VALUE" ;; *) echo "$PIN Mode: $MODE" ;; esac } # Show information to a specific pin # $1 = Pin name show_pin () { set -e PIN=$(fixup_pin $1) MODE="$(listmode $PIN)" MODES="$(listmodes $PIN)" # CAPE="$(listcape $PIN)" INFO="$(listinfo $PIN)" GPIOID="$(listgpio $PIN)" PRUID="$(listpru $PIN)" echo Pin name: $PIN echo Function if no cape loaded: $MODE echo Function if cape loaded: $MODES echo Function information: $INFO # echo Cape: $CAPE echo Kernel GPIO id: $GPIOID echo PRU GPIO id: $PRUID } # Load a installed cape # $1 cape to load load_cape () { if [ -f $SLOTS ] ; then # Make sure required device tree overlay(s) are loaded # cape-bone-iio for DTBO in $1 ; do if [ ${disable_capemgr_load} -eq 0 ] ; then if grep -q $DTBO $SLOTS ; then echo_std $DTBO already loaded else # Expand filename using shell globbing for FILE in $SLOTS ; do echo_std Loading $DTBO overlay sudo -A bash -c "echo $DTBO > $SLOTS" || (echo_err "Error loading device tree overlay file: $DTBO" && exit 1) sleep 1 done fi fi done; fi } # Check whether support for a specific pin is loaded or not # $1 pin to check check_pin () { if [ -e $OCPDIR/${PIN}_pinmux.* ] ; then echo_dbg $1 pinmux file found elif [ -e $OCPDIR${PIN}_pinmux ] ; then echo_dbg $1 pinmux file found else echo_err $1 pinmux file not found! if [ ${disable_capemgr_load} -eq 0 ] ; then CAPE="$(listcape $1)" # use only first overlay CAPE=`echo "$CAPE" | cut -d' ' -f1` if [ -f $SLOTS ] ; then if [ $AUTOLOAD -eq 0 ] ; then if grep -q $CAPE $SLOTS ; then echo_err "$CAPE already loaded" echo_err "Please verify your device tree file" else echo_err "$CAPE overlay not found" echo_err "run \"$(basename $0) overlay $CAPE\" to load the cape" fi exit 1 else echo_std $1 overlay not found load_cape $CAPE fi fi fi fi } # Configure a single pin # $1 = Pin name # $2 = Pin mode config_pin () { set -e OVERLAY=$(fixup_overlay $1) if [ $OVERLAY = "1" ] ; then if [ ${disable_capemgr_load} -eq 0 ] ; then load_cape $2 fi else PIN=$(fixup_pin $1) MODE="$(listmode $PIN)" MODES="$(listmodes $PIN)" DIR="" check_pin $PIN case $2 in # Map special GPIO setup modes to gpio with direction set # GPIO with pull-up/down disabled [iI][nN]|[iI][nN][pP][uU][tT]) MODE=gpio; DIR=in ;; [oO][uU][tT]|[oO][uU][tT][pP][uU][tT]) MODE=gpio; DIR=out ;; [lL][oO]|[lL][oO][wW]|0) MODE=gpio; DIR=low ;; [hH][iI]|[hH][iI][gG][hH]|1) MODE=gpio; DIR=high ;; # GPIO with pull-down enabled [iI][nN]-|[iI][nN][pP][uU][tT]-|[iI][nN][-_][pP][dD]|[iI][nN][pP][uU][tT][-_][pP][dD]) MODE=gpio_pd; DIR=in ;; [oO][uU][tT]-|[oO][uU][tT][pP][uU][tT]-|[oO][uU][tT][-_][pP][dD]|[oO][uU][tT][pP][uU][tT][-_][pP][dD]) MODE=gpio_pd; DIR=out ;; [lL][oO]-|[lL][oO][wW]-|0-|[lL][oO][-_][pP][dD]|[lL][oO][wW][-_][pP][dD]|0[-_][pP][dD]) MODE=gpio_pd; DIR=low ;; [hH][iI]-|[hH][iI][gG][hH]-|1-|[hH][iI][-_][pP][dD]|[hH][iI][gG][hH][-_][pP][dD]|1[-_][pP][dD]) MODE=gpio_pd; DIR=high ;; # GPIO with pull-up enabled [iI][nN]+|[iI][nN][pP][uU][tT]+|[iI][nN][-_][pP][uU]|[iI][nN][pP][uU][tT][-_][pP][uU]) MODE=gpio_pu; DIR=in ;; [oO][uU][tT]+|[oO][uU][tT][pP][uU][tT]+|[oO][uU][tT][-_][pP][uU]|[oO][uU][tT][pP][uU][tT][-_][pP][uU]) MODE=gpio_pu; DIR=out ;; [lL][oO]+|[lL][oO][wW]+|0+|[lL][oO][-_][pP][uU]|[lL][oO][wW][-_][pP][uU]|0[-_][pP][uU]) MODE=gpio_pu; DIR=low ;; [hH][iI]+|[hH][iI][gG][hH]+|1+|[hH][iI][-_][pP][uU]|[hH][iI][gG][hH][-_][pP][uU]|1[-_][pP][uU]) MODE=gpio_pd; DIR=high ;; # Check to make sure the provided mode is legal *) MODE="$2"; DIR="" FOUND=0 set -- $MODES while [ $# -gt 0 ] ; do if [ "$MODE" = "$1" ] ; then FOUND=1 break fi shift done if [ $FOUND != 1 ] ; then echo_err "Invalid mode: $MODE" exit 1 fi esac echo_dbg "PIN: \"$PIN\" MODE: \"$MODE\" DIR: \"$DIR\"" if [ -n "$DIR" ] ; then eval GPIO="\$${PIN}_GPIO" FILE="$GPIODIR/gpio$GPIO/direction" if [ -e $FILE ] ; then if [ -w $FILE ] ; then echo $DIR > $FILE || (echo_err "Cannot write gpio direction file: $FILE" && exit 1) else sudo -A bash -c "echo $DIR > $FILE" || (echo_err "Cannot write gpio direction file: $FILE" && exit 1) fi else echo_err "WARNING: GPIO pin not exported, cannot set direction or value!" fi fi if [ ! "x${SLOTS_LOCATION}" = "xold38kernel" ] ; then # Expand filename using shell globbing for FILE in $OCPDIR${PIN}_pinmux/state ; do echo_dbg "echo $MODE > $FILE" if [ -w $FILE ] ; then echo $MODE > $FILE || (echo_err "Cannot write pinmux file: $FILE" && exit 1) else sudo -A bash -c "echo $MODE > $FILE" || (echo_err "Cannot write pinmux file: $FILE" && exit 1) fi done else # Expand filename using shell globbing for FILE in $OCPDIR/${PIN}_pinmux.*/state ; do echo_dbg "echo $MODE > $FILE" if [ -w $FILE ] ; then echo $MODE > $FILE || (echo_err "Cannot write pinmux file: $FILE" && exit 1) else sudo -A bash -c "echo $MODE > $FILE" || (echo_err "Cannot write pinmux file: $FILE" && exit 1) fi done fi fi } # Read a file containing pin setup tuples and optional comments and whitespace # $1 filename to read readfile () { case $1 in # Use standard in ""|-) exec 3<&0 ;; # Use actual file *) if [ ! -r "$1" ] ; then echo_err "Cannot read file: $1" exit 1 fi exec 3< $1 ;; esac while read PIN MODE JUNK ; do case $PIN in ""|\#*) continue ;; *) config_pin $PIN $MODE ;; esac done <&3 } # main () DEBUG="" CMD="" CMDARG="" AUTOLOAD=0 while getopts adfhl:q:i: opt ; do case $opt in d) [ "$DEBUG" = 1 ] && set -x DEBUG=1 ;; a) AUTOLOAD=1 ;; l) CMD=list CMDARG="$OPTARG" ;; i) CMD=info CMDARG="$OPTARG" ;; q) CMD=query CMDARG="$OPTARG" ;; f) CMD=file ;; \?) usage exit 1 ;; esac done shift `expr $OPTIND - 1` echo_dbg AUTOLOAD=$AUTOLOAD echo_dbg "Args: $@" case $CMD in list) listmodes "$CMDARG" ;; info) show_pin "$CMDARG" ;; query) query_pin "$CMDARG" ;; file) readfile "$@" ;; *) if [ $# -ne 2 ] ; then usage exit 1 else config_pin "$1" "$2" fi ;; esac exit 0