target/linux/kirkwood/base-files/etc/init.d/hwmon_fancontrol

   1 #!/bin/sh /etc/rc.common
   2
   3 START=98
   4
   5 boot() {
   6         # configuring (lm85/lm63) onboard temp/fan controller to run the fan on its own
   7         # for more information, please read https://www.kernel.org/doc/Documentation/hwmon/sysfs-interface
   8
   9         case $(board_name) in
  10         iom,ix2-200)
  11                 path_to_hwmon='/sys/class/hwmon/hwmon0'
  12                 echo 2 > "$path_to_hwmon/pwm1_enable" # fan is on pwm1
  13                 ;;
  14         seagate,blackarmor-nas220)
  15                 path_to_hwmon='/sys/devices/platform/ocp@f1000000/f1011000.i2c/i2c-0/0-002e/hwmon/hwmon0'
  16                 # adt7476 fan control chip. 3 temp sensors. Set to 1/4 speed at 35C and max speed at 48C.
  17                 echo 7 > "$path_to_hwmon/pwm1_auto_channels_temp"
  18                 echo 64 > "$path_to_hwmon/pwm1_auto_point1_pwm"
  19                 echo 255 > "$path_to_hwmon/pwm1_auto_point2_pwm"
  20                 echo 35000 > "$path_to_hwmon/temp1_auto_point1_temp"
  21                 echo 48000 > "$path_to_hwmon/temp1_auto_point2_temp"
  22                 echo 35000 > "$path_to_hwmon/temp2_auto_point1_temp"
  23                 echo 48000 > "$path_to_hwmon/temp2_auto_point2_temp"
  24                 echo 35000 > "$path_to_hwmon/temp3_auto_point1_temp"
  25                 echo 48000 > "$path_to_hwmon/temp3_auto_point2_temp"
  26                 echo 2 > "$path_to_hwmon/pwm1_enable"
  27                 ;;
  28         zyxel,nsa310b)
  29                 path_to_hwmon='/sys/devices/platform/ocp@f1000000/f1011000.i2c/i2c-0/0-002e/hwmon/hwmon0'
  30                 # use the max. value of (temp1) OR (temp2) OR (temp3) as an input
  31                 # for the PWM of the cooling fan
  32                 echo 123 > "$path_to_hwmon/pwm1_auto_channels"
  33                 # Temperature sensor #1 placed on mainboard
  34                 echo 30000 > "$path_to_hwmon/temp1_auto_temp_min"
  35                 echo 49600 > "$path_to_hwmon/temp1_auto_temp_max"
  36                 # Temperature sensor #2 placed on mainboard
  37                 # range: 0 to 127000 in steps of 1000 [millicelsius]
  38                 echo 30000 > "$path_to_hwmon/temp2_auto_temp_min"
  39                 # range: 0 to 127000 in steps of ???? [millicelsius]
  40                 echo 49600 > "$path_to_hwmon/temp2_auto_temp_max"
  41                 # Temperature sensor #3 placed close to a chipset
  42                 # range: 0 to 60000 in steps of 1000 [millicelsius]
  43                 echo 23000 > "$path_to_hwmon/temp3_auto_temp_min"
  44                 # pre-defined steps: 103000, 122000, 143300, 170000 in [millicelsius]
  45                 echo 103000 > "$path_to_hwmon/temp3_auto_temp_max"
  46                 ;;
  47         esac
  48 }