meta-bletchley: introduce Bletchley common functions
Add a common functions script for reusing the functions which are
called frequently.
This patch depends on the patchs below:
* https://lore.kernel.org/all/20220613095150.21917-4-potin.lai.pt@gmail.com/
Signed-off-by: Potin Lai <potin.lai@quantatw.com>
Change-Id: I6e1602b00f1b0a19e77506be6eabe18c796e52fe
diff --git a/meta-facebook/meta-bletchley/recipes-bletchley/plat-tools/files/bletchley-common-functions b/meta-facebook/meta-bletchley/recipes-bletchley/plat-tools/files/bletchley-common-functions
new file mode 100644
index 0000000..e3ca00a
--- /dev/null
+++ b/meta-facebook/meta-bletchley/recipes-bletchley/plat-tools/files/bletchley-common-functions
@@ -0,0 +1,95 @@
+#!/bin/bash
+
+get_gpio()
+{
+ local NET_NAME=$1
+ local RET_VAL
+
+ mapfile -t -d " " GPIO_INFO < <(gpiofind "$NET_NAME")
+ if [ "${#GPIO_INFO[@]}" -ne 2 ]; then
+ echo "get_gpio: can not find gpio, $NET_NAME" >&2
+ return 1
+ fi
+ if ! RET_VAL=$(gpioget "${GPIO_INFO[0]}" "${GPIO_INFO[1]%$'\n'}") ; then
+ echo "get_gpio: get ${NET_NAME} failed" >&2
+ return 1
+ fi
+ echo "${RET_VAL}"
+ return 0
+}
+
+set_gpio()
+{
+ local NET_NAME=$1
+ local OUT_VAL=$2
+ mapfile -t -d " " GPIO_INFO < <(gpiofind "$NET_NAME")
+ if [ "${#GPIO_INFO[@]}" -ne 2 ]; then
+ echo "set_gpio: can not find gpio, $NET_NAME"
+ return 1
+ fi
+
+ echo -n "set_gpio: set $NET_NAME = $OUT_VAL"
+ if ! gpioset "${GPIO_INFO[0]}" "${GPIO_INFO[1]%$'\n'}"="$OUT_VAL"; then
+ echo " failed"
+ return 1
+ fi
+
+ echo " success"
+ return 0
+}
+
+set_fan()
+{
+ FAN_ID=$1
+ FAN_DUTY=$2
+ SYSFA_PWM_PATH=""
+
+ for file in /sys/devices/platform/pwm-fan"$FAN_ID"/hwmon/hwmon*/pwm1
+ do
+ if [ -e "$file" ]; then
+ SYSFA_PWM_PATH="$file"
+ break
+ fi
+ done
+
+ if [ -z "$SYSFA_PWM_PATH" ]; then
+ echo "set_fan: pwm file not found, chekc fan id ($FAN_ID)"
+ return 1
+ fi
+
+ if [ "$FAN_DUTY" -lt 0 ] || [ "$FAN_DUTY" -gt 100 ]; then
+ echo "set_fan: incorrect fan duty, $FAN_DUTY"
+ return 1
+ fi
+
+ # convert duty (0-100) to pwm value (0-255)
+ PWM_VAL=$(printf "%.0f" $((FAN_DUTY*255/100)))
+
+ echo -n "set_fan: set fan$FAN_ID = $FAN_DUTY"
+ if ! echo "$PWM_VAL" > "$SYSFA_PWM_PATH"; then
+ echo " failed"
+ return 1
+ fi
+
+ echo " success"
+ return 0
+}
+
+
+is_sled_present()
+{
+ local SLED_ID=$1
+ local SRV_NAME="xyz.openbmc_project.Inventory.Manager"
+ local OBJ_PATH="/xyz/openbmc_project/inventory/system/chassis/presence/presence_sled${SLED_ID}"
+ local INTF_NAME="xyz.openbmc_project.Inventory.Item"
+ local PRST_VAL
+
+ PRST_VAL=$(busctl get-property "${SRV_NAME}" "${OBJ_PATH}" "${INTF_NAME}" Present | awk '{print $2}')
+ if [ "$PRST_VAL" != "true" ]; then
+ # not present
+ return 1
+ fi
+
+ # present
+ return 0
+}