| #!/bin/bash |
| |
| fanSensorService="xyz.openbmc_project.FanSensor" |
| |
| sensorPath="/xyz/openbmc_project/sensors/fan_tach/" |
| pwmTargetPath="/xyz/openbmc_project/control/fanpwm/" |
| |
| sensorValueInterfaceName="xyz.openbmc_project.Sensor.Value" |
| sensorValuePropertyName="Value" |
| |
| pwmTargetInterfaceName="xyz.openbmc_project.Control.FanPwm" |
| pwmTargetPropertyName="Target" |
| |
| function stop_phosphor_fan_services() { |
| systemctl stop phosphor-fan-control@0.service |
| systemctl stop phosphor-fan-monitor@0.service |
| systemctl stop phosphor-fan-presence-tach@0.service |
| } |
| |
| function start_phosphor_fan_services() { |
| systemctl start phosphor-fan-control@0.service |
| systemctl start phosphor-fan-monitor@0.service |
| systemctl start phosphor-fan-presence-tach@0.service |
| } |
| |
| function read_speed() { |
| fan_val=$(busctl get-property "$fanSensorService" "${sensorPath}$1" "$sensorValueInterfaceName" "$sensorValuePropertyName") |
| busctl_error=$? |
| if (( busctl_error != 0 )); then |
| echo "Error: get-property $sensorValuePropertyName failed! " |
| exit 1 |
| fi |
| |
| pwm_target=$(busctl get-property "$fanSensorService" "${pwmTargetPath}$2" "$pwmTargetInterfaceName" "$pwmTargetPropertyName") |
| busctl_error=$? |
| if (( busctl_error != 0 )); then |
| echo "Error: get-property $pwmTargetPropertyName failed! " |
| exit 1 |
| fi |
| |
| fan_val=$(echo "$fan_val" | cut -d " " -f 2) |
| pwm_target=$(echo "$pwm_target" | cut -d " " -f 2) |
| |
| # Convert fan PWM to Duty cycle, adding 127 for rounding. |
| pwm_duty_cyle=$(((("$pwm_target" * 100) + 127) / 255)) |
| |
| echo "$1, PWM: $pwm_target, Duty cycle: $pwm_duty_cyle%, Speed(RPM): $fan_val" |
| } |
| |
| function set_pwm() { |
| |
| # Convert Fan Duty cycle to PWM, adding 50 for rounding. |
| fan_pwm=$(((($2 * 255) + 50) / 100)) |
| |
| busctl set-property "$fanSensorService" "${pwmTargetPath}$1" "$pwmTargetInterfaceName" "$pwmTargetPropertyName" t "$fan_pwm" |
| busctl_error=$? |
| if (( busctl_error != 0 )); then |
| echo "Error: set-property $pwmTargetPropertyName failed! " |
| exit 255 |
| fi |
| } |
| |
| function getstatus() { |
| fan_ctl_stt=$(systemctl is-active phosphor-fan-control@0.service | grep inactive) |
| fan_monitor_stt=$(systemctl is-active phosphor-fan-monitor@0.service | grep inactive) |
| if [[ -z "$fan_ctl_stt" && -z "$fan_monitor_stt" ]]; then |
| echo "Thermal Control operational status: Enabled" |
| exit 0 |
| else |
| echo "Thermal Control operational status: Disabled" |
| exit 1 |
| fi |
| } |
| |
| function setstatus() { |
| if [ "$1" == 0 ]; then |
| # Enable fan services |
| start_phosphor_fan_services |
| else |
| # Disable fan services |
| stop_phosphor_fan_services |
| fi |
| } |
| |
| function setspeed() { |
| # Get fan_pwm value of the fan |
| case "$1" in |
| 0) fan_pwm=PWM7 |
| ;; |
| 1) fan_pwm=PWM5 |
| ;; |
| 2) fan_pwm=PWM4 |
| ;; |
| 3) fan_pwm=PWM3 |
| ;; |
| 4) fan_pwm=PWM1 |
| ;; |
| 5) fan_pwm=PWM0 |
| ;; |
| *) echo "fan $1 doesn't exit" |
| exit 1 |
| ;; |
| esac |
| |
| set_pwm "$fan_pwm" "$2" |
| exit 0 |
| } |
| |
| function getspeed() { |
| |
| # Mapping fan number to fan_input and fan_pwm index |
| case "$1" in |
| 0) fan_input_f=FAN0_F |
| fan_input_r=FAN0_R |
| fan_pwm=PWM7 |
| ;; |
| 1) fan_input_f=FAN1_F |
| fan_input_r=FAN1_R |
| fan_pwm=PWM5 |
| ;; |
| 2) fan_input_f=FAN2_F |
| fan_input_r=FAN2_R |
| fan_pwm=PWM4 |
| ;; |
| 3) fan_input_f=FAN3_F |
| fan_input_r=FAN3_R |
| fan_pwm=PWM3 |
| ;; |
| 4) fan_input_f=FAN4_F |
| fan_input_r=FAN4_R |
| fan_pwm=PWM1 |
| ;; |
| 5) fan_input_f=FAN5_F |
| fan_input_r=FAN5_F |
| fan_pwm=PWM0 |
| ;; |
| *) echo "fan $1 doesn't exit" |
| exit 1 |
| ;; |
| esac |
| |
| # Get fan speed, each fan number has two values is front and rear |
| read_speed "$fan_input_f" "$fan_pwm" |
| read_speed "$fan_input_r" "$fan_pwm" |
| |
| exit 0 |
| } |
| |
| # Usage of this utility |
| function usage() { |
| echo "Usage:" |
| echo " ampere_fanctrl.sh [getstatus] [setstatus <0|1>] [setspeed <fan> <duty>] [getspeed <fan>]" |
| echo " fan: 0-5" |
| echo " duty: 1-100" |
| } |
| |
| if [ "$1" == "getstatus" ]; then |
| getstatus |
| elif [ "$1" == "setstatus" ]; then |
| setstatus "$2" |
| elif [ "$1" == "setspeed" ]; then |
| stop_phosphor_fan_services |
| setspeed "$2" "$3" |
| elif [ "$1" == "getspeed" ]; then |
| getspeed "$2" |
| else |
| usage |
| fi |