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 ports $1 port
  23         config_get mode $1 mode
  24         config_get_bool default $1 default "nil"
  25         config_get delayon $1 delayon
  26         config_get delayoff $1 delayoff
  27         config_get interval $1 interval "50"
  28         config_get port_state $1 port_state
  29         config_get delay $1 delay "150"
  30         config_get message $1 message ""
  31         config_get gpio $1 gpio "0"
  32         config_get inverted $1 inverted "0"
  33
  34         if [ "$trigger" = "rssi" ]; then
  35                 # handled by rssileds userspace process
  36                 return
  37         fi
  38
  39         [ "$trigger" = "usbdev" ] && {
  40                 # Backward compatibility: translate to the new trigger
  41                 trigger="usbport"
  42                 # Translate port of root hub, e.g. 4-1 -> usb4-port1
  43                 ports=$(echo "$dev" | sed -n 's/^\([0-9]*\)-\([0-9]*\)$/usb\1-port\2/p')
  44                 # Translate port of extra hub, e.g. 2-2.4 -> 2-2-port4
  45                 [ -z "$ports" ] && ports=$(echo "$dev" | sed -n 's/\./-port/p')
  46         }
  47
  48         [ -e /sys/class/leds/${sysfs}/brightness ] && {
  49                 echo "setting up led ${name}"
  50
  51                 printf "%s %s %d\n" \
  52                         "$sysfs" \
  53                         "$(sed -ne 's/^.*\[\(.*\)\].*$/\1/p' /sys/class/leds/${sysfs}/trigger)" \
  54                         "$(cat /sys/class/leds/${sysfs}/brightness)" \
  55                                 >> /var/run/led.state
  56
  57                 [ "$default" = 0 ] &&
  58                         echo 0 >/sys/class/leds/${sysfs}/brightness
  59
  60                 echo $trigger > /sys/class/leds/${sysfs}/trigger 2> /dev/null
  61                 ret="$?"
  62
  63                 [ $default = 1 ] &&
  64                         cat /sys/class/leds/${sysfs}/max_brightness > /sys/class/leds/${sysfs}/brightness
  65
  66                 [ $ret = 0 ] || {
  67                         echo >&2 "Skipping trigger '$trigger' for led '$name' due to missing kernel module"
  68                         return 1
  69                 }
  70                 case "$trigger" in
  71                 "netdev")
  72                         [ -n "$dev" ] && {
  73                                 echo $dev > /sys/class/leds/${sysfs}/device_name
  74                                 echo "${mode:-link}" > /sys/class/leds/${sysfs}/mode
  75                                 echo $interval > /sys/class/leds/${sysfs}/interval
  76                         }
  77                         ;;
  78
  79                 "timer"|"oneshot")
  80                         [ -n "$delayon" ] && \
  81                                 echo $delayon > /sys/class/leds/${sysfs}/delay_on
  82                         [ -n "$delayoff" ] && \
  83                                 echo $delayoff > /sys/class/leds/${sysfs}/delay_off
  84                         ;;
  85
  86                 "usbport")
  87                         local p
  88
  89                         for p in $ports; do
  90                                 echo 1 > /sys/class/leds/${sysfs}/ports/$p
  91                         done
  92                         ;;
  93
  94                 "port_state")
  95                         [ -n "$port_state" ] && \
  96                                 echo $port_state > /sys/class/leds/${sysfs}/port_state
  97                         ;;
  98
  99                 "gpio")
 100                         echo $gpio > /sys/class/leds/${sysfs}/gpio
 101                         echo $inverted > /sys/class/leds/${sysfs}/inverted
 102                         ;;
 103
 104                 switch[0-9]*)
 105                         local port_mask speed_mask
 106
 107                         config_get port_mask $1 port_mask
 108                         [ -n "$port_mask" ] && \
 109                                 echo $port_mask > /sys/class/leds/${sysfs}/port_mask
 110                         config_get speed_mask $1 speed_mask
 111                         [ -n "$speed_mask" ] && \
 112                                 echo $speed_mask > /sys/class/leds/${sysfs}/speed_mask
 113                         [ -n "$mode" ] && \
 114                                 echo "$mode" > /sys/class/leds/${sysfs}/mode
 115                         ;;
 116                 esac
 117         }
 118 }
 119
 120 start() {
 121         [ -e /sys/class/leds/ ] && {
 122                 [ -s /var/run/led.state ] && {
 123                         local led trigger brightness
 124                         while read led trigger brightness; do
 125                                 [ -e "/sys/class/leds/$led/trigger" ] && \
 126                                         echo "$trigger" > "/sys/class/leds/$led/trigger"
 127
 128                                 [ -e "/sys/class/leds/$led/brightness" ] && \
 129                                         echo "$brightness" > "/sys/class/leds/$led/brightness"
 130                         done < /var/run/led.state
 131                         rm /var/run/led.state
 132                 }
 133
 134                 config_load system
 135                 config_foreach load_led led
 136         }
 137 }