1 files changed, 30 insertions, 0 deletions
diff --git a/meta-ampere/meta-jade/recipes-ampere/platform/mtjade-utils/gpio-lib.sh b/meta-ampere/meta-jade/recipes-ampere/platform/mtjade-utils/gpio-lib.sh
new file mode 100644
index 000000000..fcc2d5411
--- /dev/null
+++ b/meta-ampere/meta-jade/recipes-ampere/platform/mtjade-utils/gpio-lib.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+
+function gpio_number() {
+	GPIO_BASE=$(cat /sys/class/gpio/gpio*/base)
+	echo $((${GPIO_BASE} + $1))
+}
+
+# Configure GPIO as output and set its value
+function gpio_configure_output() {
+	gpioId=$(gpio_number $1)
+	echo $gpioId > /sys/class/gpio/export
+	echo out > /sys/class/gpio/gpio${gpioId}/direction
+	echo $2 > /sys/class/gpio/gpio${gpioId}/value
+	echo $gpioId > /sys/class/gpio/unexport
+}
+
+function gpio_get_val() {
+	gpioId=$(gpio_number $1)
+	echo $gpioId > /sys/class/gpio/export
+	echo $(cat /sys/class/gpio/gpio$gpioId/value)
+	echo $gpioId > /sys/class/gpio/unexport
+}
+
+# Configure GPIO as input
+function gpio_configure_input() {
+	gpioId=$(gpio_number $1)
+	echo $gpioId > /sys/class/gpio/export
+	echo "in" > /sys/class/gpio/gpio${gpioId}/direction
+	echo $gpioId > /sys/class/gpio/unexport
+}