hardware: add GPIO test functions

src/usr/lib/rsetup/tui/hardware/gpio.sh

@@ -0,0 +1,114 @@
+# shellcheck shell=bash
+
+__hardware_gpio_fmt() {
+ local i="$1"
+ if (( i < 4 ))
+ then
+ # shellcheck disable=SC2028
+ echo "%s %s %s %s\\n"
+ elif (( i == 4 ))
+ then
+ # shellcheck disable=SC2028
+ echo "%s %s %s %s\\n"
+ else
+ # shellcheck disable=SC2028
+ echo "%s %s %s %s\\n"
+ fi
+}
+
+__hardware_gpio_set() {
+ local i level="$1" gpio=() states=()
+
+ for i in {1..40}
+ do
+ if gpiofind "PIN_$i" >/dev/null
+ then
+ read -ra gpio < <(gpiofind "PIN_$i")
+ if gpioset "${gpio[0]}" "${gpio[1]}=$level"
+ then
+ gpioset -m signal "${gpio[0]}" "${gpio[1]}=$level" &
+ states+=("$level")
+ else
+ states+=("E")
+ fi
+ else
+ states+=(" ")
+ fi
+ done
+
+ msgbox "Following GPIO pins have their state changed temporarily:
+
+0: Low | 1: High | E: Error
+
+State Pin State
+$(for i in {0..19}
+do
+ # shellcheck disable=SC2059
+ printf "$(__hardware_gpio_fmt "$i")" \
+ "${states[i * 2]}" "$(( i * 2 + 1 ))" \
+ "$(( i * 2 + 2 ))" "${states[i * 2 + 1]}"
+done)" #" # Workaround VS Code incorrect code highlighting
+
+ jobs -r -p | xargs -I{} kill -- {}
+}
+
+__hardware_gpio_set_high() {
+ __hardware_gpio_set 1
+}
+
+__hardware_gpio_set_low() {
+ __hardware_gpio_set 0
+}
+
+__hardware_gpio_get() {
+ local i level gpio=() states=()
+
+ for i in {1..40}
+ do
+ if gpiofind "PIN_$i" >/dev/null
+ then
+ read -ra gpio < <(gpiofind "PIN_$i")
+ if level="$(gpioget "${gpio[@]}" 2>/dev/null)"
+ then
+ states+=("$level")
+ else
+ states+=("E")
+ fi
+ else
+ states+=(" ")
+ fi
+ done
+
+ msgbox "Following is the current reading of all supported GPIO pins:
+
+0: Low | 1: High | E: Error
+
+State Pin State
+$(for i in {0..19}
+do
+ # shellcheck disable=SC2059
+ printf "$(__hardware_gpio_fmt "$i")" \
+ "${states[i * 2]}" "$(( i * 2 + 1 ))" \
+ "$(( i * 2 + 2 ))" "${states[i * 2 + 1]}"
+done)" #" # Workaround VS Code incorrect code highlighting
+}
+
+__hardware_gpio() {
+ if loginctl | grep -e ttyS -e ttyAML -e ttyFIQ >/dev/null && \
+ ! yesno "A serial session has been detected.
+
+Testing GPIO with provided functions may cause the serial console to malfunction.
+It will only return to normal working condition after a system reboot.
+
+Do you want to continue?
+"
+ then
+ return
+ fi
+
+ menu_init
+ menu_add __hardware_gpio_set_high "Set all GPIO to High"
+ menu_add __hardware_gpio_set_low "Set all GPIO to Low"
+ menu_add __hardware_gpio_get "Get all GPIO state"
+ menu_show "Please select the test case:"
+}

src/usr/lib/rsetup/tui/hardware/hardware.sh

@@ -3,6 +3,9 @@
 # shellcheck source=src/usr/lib/rsetup/mod/config.sh
 source "/usr/lib/rsetup/mod/config.sh"
 
+# shellcheck source=src/usr/lib/rsetup/tui/hardware/gpio.sh
+source "/usr/lib/rsetup/tui/hardware/gpio.sh"
+
 __hardware_gstreamer_test_picture() {
  local temp
  temp="$(mktemp tmp.XXXXXXXXXX.jpg)"
@@ -240,6 +243,7 @@ __hardware() {
  menu_add __hardware_gpio_leds "GPIO LEDs"
  menu_add __hardware_thermal "Thermal governor"
  menu_add __hardware_dsi_mirror "Configure DSI display mirroring"
+ menu_add __hardware_gpio "40-pin GPIO"
  if $DEBUG
  then
  menu_add __hardware_rgb_leds "RGB LEDs"