target/linux/mvebu/cortexa9/base-files/sbin/fan_ctrl.sh

   1 #!/bin/sh
   2
   3 CPU_TEMP=$(cut -c1-2 /sys/class/hwmon/hwmon2/temp1_input)
   4 DDR_TEMP=$(cut -c1-2 /sys/class/hwmon/hwmon1/temp1_input)
   5 WIFI_TEMP=$(cut -c1-2 /sys/class/hwmon/hwmon1/temp2_input)
   6
   7 CPU_LOW=85
   8 CPU_HIGH=95
   9 DDR_LOW=65
  10 DDR_HIGH=75
  11 WIFI_LOW=100
  12 WIFI_HIGH=115
  13
  14 if [ -d /sys/devices/pwm_fan ];then
  15         FAN_CTRL=/sys/devices/pwm_fan/hwmon/hwmon0/pwm1
  16 elif [ -d /sys/devices/platform/pwm_fan ];then
  17         FAN_CTRL=/sys/devices/platform/pwm_fan/hwmon/hwmon0/pwm1
  18 else
  19         exit 0
  20 fi
  21
  22 if [ "$CPU_TEMP" -ge "$CPU_HIGH" -o "$DDR_TEMP" -ge "$DDR_HIGH" -o "$WIFI_TEMP" -ge "$WIFI_HIGH" ];then
  23         echo "255" > $FAN_CTRL
  24 elif [ "$CPU_TEMP" -ge "$CPU_LOW" -o "$DDR_TEMP" -ge "$DDR_LOW" -o "$WIFI_TEMP" -ge "$WIFI_LOW" ];then
  25         echo "100" > $FAN_CTRL
  26 else
  27         echo "0" > $FAN_CTRL
  28 fi