package/base-files/files/etc/init.d/led

   1 #!/bin/sh /etc/rc.common
   2 # Copyright (C) 2008 OpenWrt.org
   3
   4 START=96
   5
   6 load_led() {
   7         local name
   8         local sysfs
   9         local trigger
  10         local dev
  11         local mode
  12         local default
  13         local delayon
  14         local delayoff
  15         local interval
  16
  17         config_get sysfs $1 sysfs
  18         config_get name $1 name "$sysfs"
  19         config_get trigger $1 trigger "none"
  20         config_get dev $1 dev
  21         config_get mode $1 mode "link"
  22         config_get_bool default $1 default "nil"
  23         config_get delayon $1 delayon
  24         config_get delayoff $1 delayoff
  25         config_get interval $1 interval "50"
  26         config_get port_state $1 port_state
  27         config_get delay $1 delay "150"
  28         config_get message $1 message ""
  29         config_get gpio $1 gpio "0"
  30         config_get inverted $1 inverted "0"
  31
  32         if [ "$trigger" = "rssi" ]; then
  33                 # handled by rssileds userspace process
  34                 return
  35         fi
  36
  37         [ -e /sys/class/leds/${sysfs}/brightness ] && {
  38                 echo "setting up led ${name}"
  39
  40                 printf "%s %s %d\n" \
  41                         "$sysfs" \
  42                         "$(sed -ne 's/^.*\[\(.*\)\].*$/\1/p' /sys/class/leds/${sysfs}/trigger)" \
  43                         "$(cat /sys/class/leds/${sysfs}/brightness)" \
  44                                 >> /var/run/led.state
  45
  46                 [ "$default" = 0 ] &&
  47                         echo 0 >/sys/class/leds/${sysfs}/brightness
  48
  49                 echo $trigger > /sys/class/leds/${sysfs}/trigger 2> /dev/null
  50                 ret="$?"
  51
  52                 [ $default = 1 ] &&
  53                         cat /sys/class/leds/${sysfs}/max_brightness > /sys/class/leds/${sysfs}/brightness
  54
  55                 [ $ret = 0 ] || {
  56                         echo >&2 "Skipping trigger '$trigger' for led '$name' due to missing kernel module"
  57                         return 1
  58                 }
  59                 case "$trigger" in
  60                 "netdev")
  61                         [ -n "$dev" ] && {
  62                                 echo $dev > /sys/class/leds/${sysfs}/device_name
  63                                 echo $mode > /sys/class/leds/${sysfs}/mode
  64                         }
  65                         ;;
  66
  67                 "timer")
  68                         [ -n "$delayon" ] && \
  69                                 echo $delayon > /sys/class/leds/${sysfs}/delay_on
  70                         [ -n "$delayoff" ] && \
  71                                 echo $delayoff > /sys/class/leds/${sysfs}/delay_off
  72                         ;;
  73
  74                 "usbdev")
  75                         [ -n "$dev" ] && {
  76                                 echo $dev > /sys/class/leds/${sysfs}/device_name
  77                                 echo $interval > /sys/class/leds/${sysfs}/activity_interval
  78                         }
  79                         ;;
  80
  81                 "port_state")
  82                         [ -n "$port_state" ] && \
  83                                 echo $port_state > /sys/class/leds/${sysfs}/port_state
  84                         ;;
  85
  86                 "gpio")
  87                         echo $gpio > /sys/class/leds/${sysfs}/gpio
  88                         echo $inverted > /sys/class/leds/${sysfs}/inverted
  89                         ;;
  90
  91                 switch[0-9]*)
  92                         local port_mask speed_mask
  93
  94                         config_get port_mask $1 port_mask
  95                         [ -n "$port_mask" ] && \
  96                                 echo $port_mask > /sys/class/leds/${sysfs}/port_mask
  97                         config_get speed_mask $1 speed_mask
  98                         [ -n "$speed_mask" ] && \
  99                                 echo $speed_mask > /sys/class/leds/${sysfs}/speed_mask
 100                         ;;
 101                 esac
 102         }
 103 }
 104
 105 start() {
 106         [ -e /sys/class/leds/ ] && {
 107                 [ -s /var/run/led.state ] && {
 108                         local led trigger brightness
 109                         while read led trigger brightness; do
 110                                 [ -e "/sys/class/leds/$led/trigger" ] && \
 111                                         echo "$trigger" > "/sys/class/leds/$led/trigger"
 112
 113                                 [ -e "/sys/class/leds/$led/brightness" ] && \
 114                                         echo "$brightness" > "/sys/class/leds/$led/brightness"
 115                         done < /var/run/led.state
 116                         rm /var/run/led.state
 117                 }
 118
 119                 config_load system
 120                 config_foreach load_led led
 121         }
 122 }