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 ports
  12         local mode
  13         local default
  14         local delayon
  15         local delayoff
  16         local interval
  17
  18         config_get sysfs $1 sysfs
  19         config_get name $1 name "$sysfs"
  20         config_get trigger $1 trigger "none"
  21         config_get dev $1 dev
  22         config_get mode $1 mode "link"
  23         config_get_bool default $1 default "nil"
  24         config_get delayon $1 delayon
  25         config_get delayoff $1 delayoff
  26         config_get interval $1 interval "50"
  27         config_get port_state $1 port_state
  28         config_get delay $1 delay "150"
  29         config_get message $1 message ""
  30         config_get gpio $1 gpio "0"
  31         config_get inverted $1 inverted "0"
  32
  33         if [ "$trigger" = "rssi" ]; then
  34                 # handled by rssileds userspace process
  35                 return
  36         fi
  37
  38         [ "$trigger" = "usbdev" ] && {
  39                 # Backward compatibility: translate to the new trigger
  40                 trigger="usbport"
  41                 # Translate port of root hub, e.g. 4-1 -> usb4-port1
  42                 ports=$(echo "$dev" | sed -n 's/^\([0-9]*\)-\([0-9]*\)$/usb\1-port\2/p')
  43                 # Translate port of extra hub, e.g. 2-2.4 -> 2-2-port4
  44                 [ -z "$ports" ] && ports=$(echo "$dev" | sed -n 's/\./-port/p')
  45         }
  46
  47         [ -e /sys/class/leds/${sysfs}/brightness ] && {
  48                 echo "setting up led ${name}"
  49
  50                 printf "%s %s %d\n" \
  51                         "$sysfs" \
  52                         "$(sed -ne 's/^.*\[\(.*\)\].*$/\1/p' /sys/class/leds/${sysfs}/trigger)" \
  53                         "$(cat /sys/class/leds/${sysfs}/brightness)" \
  54                                 >> /var/run/led.state
  55
  56                 [ "$default" = 0 ] &&
  57                         echo 0 >/sys/class/leds/${sysfs}/brightness
  58
  59                 echo $trigger > /sys/class/leds/${sysfs}/trigger 2> /dev/null
  60                 ret="$?"
  61
  62                 [ $default = 1 ] &&
  63                         cat /sys/class/leds/${sysfs}/max_brightness > /sys/class/leds/${sysfs}/brightness
  64
  65                 [ $ret = 0 ] || {
  66                         echo >&2 "Skipping trigger '$trigger' for led '$name' due to missing kernel module"
  67                         return 1
  68                 }
  69                 case "$trigger" in
  70                 "netdev")
  71                         [ -n "$dev" ] && {
  72                                 echo $dev > /sys/class/leds/${sysfs}/device_name
  73                                 echo $mode > /sys/class/leds/${sysfs}/mode
  74                         }
  75                         ;;
  76
  77                 "timer"|"oneshot")
  78                         [ -n "$delayon" ] && \
  79                                 echo $delayon > /sys/class/leds/${sysfs}/delay_on
  80                         [ -n "$delayoff" ] && \
  81                                 echo $delayoff > /sys/class/leds/${sysfs}/delay_off
  82                         ;;
  83
  84                 "usbport")
  85                         local p
  86
  87                         for p in $ports; do
  88                                 echo 1 > /sys/class/leds/${sysfs}/ports/$p
  89                         done
  90                         ;;
  91
  92                 "port_state")
  93                         [ -n "$port_state" ] && \
  94                                 echo $port_state > /sys/class/leds/${sysfs}/port_state
  95                         ;;
  96
  97                 "gpio")
  98                         echo $gpio > /sys/class/leds/${sysfs}/gpio
  99                         echo $inverted > /sys/class/leds/${sysfs}/inverted
 100                         ;;
 101
 102                 switch[0-9]*)
 103                         local port_mask speed_mask
 104
 105                         config_get port_mask $1 port_mask
 106                         [ -n "$port_mask" ] && \
 107                                 echo $port_mask > /sys/class/leds/${sysfs}/port_mask
 108                         config_get speed_mask $1 speed_mask
 109                         [ -n "$speed_mask" ] && \
 110                                 echo $speed_mask > /sys/class/leds/${sysfs}/speed_mask
 111                         ;;
 112                 esac
 113         }
 114 }
 115
 116 start() {
 117         [ -e /sys/class/leds/ ] && {
 118                 [ -s /var/run/led.state ] && {
 119                         local led trigger brightness
 120                         while read led trigger brightness; do
 121                                 [ -e "/sys/class/leds/$led/trigger" ] && \
 122                                         echo "$trigger" > "/sys/class/leds/$led/trigger"
 123
 124                                 [ -e "/sys/class/leds/$led/brightness" ] && \
 125                                         echo "$brightness" > "/sys/class/leds/$led/brightness"
 126                         done < /var/run/led.state
 127                         rm /var/run/led.state
 128                 }
 129
 130                 config_load system
 131                 config_foreach load_led led
 132         }
 133 }