diff options
Diffstat (limited to 'meta-quanta/meta-gsj/recipes-gsj/detect-fan-fail/files/detect-fan-fail.sh')
-rw-r--r-- | meta-quanta/meta-gsj/recipes-gsj/detect-fan-fail/files/detect-fan-fail.sh | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/meta-quanta/meta-gsj/recipes-gsj/detect-fan-fail/files/detect-fan-fail.sh b/meta-quanta/meta-gsj/recipes-gsj/detect-fan-fail/files/detect-fan-fail.sh new file mode 100644 index 000000000..80f1f69c5 --- /dev/null +++ b/meta-quanta/meta-gsj/recipes-gsj/detect-fan-fail/files/detect-fan-fail.sh @@ -0,0 +1,58 @@ +#!/bin/bash + +# get fan state by d-bus command +function get_fan_state() { + get_property_path='xyz.openbmc_project.Sensor.Threshold.Critical CriticalAlarmLow' + fan_state="$(busctl get-property $1 $2 $get_property_path | awk '{print $2}')" + echo "$fan_state" +} + +# set fan pwm by d-bus command +function set_fan_value() { + set_property_path='xyz.openbmc_project.Control.FanPwm' + busctl set-property $1 $2 $set_property_path Target t 255 +} + +fan_tach_path=( '/xyz/openbmc_project/sensors/fan_tach/Fan0_0_RPM' + '/xyz/openbmc_project/sensors/fan_tach/Fan0_1_RPM' + '/xyz/openbmc_project/sensors/fan_tach/Fan1_0_RPM' + '/xyz/openbmc_project/sensors/fan_tach/Fan1_1_RPM' + '/xyz/openbmc_project/sensors/fan_tach/Fan2_0_RPM' + '/xyz/openbmc_project/sensors/fan_tach/Fan2_1_RPM' + ) + +check_fail_flag=0 +current_fan_state=() +while true; do + hwmon_path="$(mapper get-service ${fan_tach_path[0]})" + for i in ${!fan_tach_path[@]}; + do + current_fan_state[$i%2]=$(get_fan_state $hwmon_path ${fan_tach_path[$i]}) + + #Compare state of dual rotors with CriticalAlarmLow to check if fan fail + if [ ${#current_fan_state[@]} -eq 2 ];then + if [ "${current_fan_state[0]}" == "true" ] && \ + [ "${current_fan_state[1]}" == "true" ] ;then + if [ $check_fail_flag -eq 0 ];then + systemctl stop phosphor-pid-control + for j in ${!fan_tach_path[@]}; + do + #If fan fail is detect, set other fan rpm to pwm 255. + set_fan_value $hwmon_path ${fan_tach_path[$j]} + check_fail_flag=1 + done + fi + current_fan_state=() + break + fi + current_fan_state=() + fi + + #fans are going to normal. + if [ $i -eq $((${#fan_tach_path[@]}-1)) ] && [ $check_fail_flag -eq 1 ]; then + check_fail_flag=0 + systemctl restart phosphor-pid-control + fi + done + sleep 2 +done |