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 "0"
  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_bool inverted $1 inverted "0"
  33
  34         # execute application led trigger
  35         [ -f "/usr/libexec/led-trigger/${trigger}" ] && {
  36                 . "/usr/libexec/led-trigger/${trigger}"
  37                 return 0
  38         }
  39
  40         [ "$trigger" = "usbdev" ] && {
  41                 # Backward compatibility: translate to the new trigger
  42                 trigger="usbport"
  43                 # Translate port of root hub, e.g. 4-1 -> usb4-port1
  44                 ports=$(echo "$dev" | sed -n 's/^\([0-9]*\)-\([0-9]*\)$/usb\1-port\2/p')
  45                 # Translate port of extra hub, e.g. 2-2.4 -> 2-2-port4
  46                 [ -z "$ports" ] && ports=$(echo "$dev" | sed -n 's/\./-port/p')
  47         }
  48
  49         [ -e /sys/class/leds/${sysfs}/brightness ] && {
  50                 echo "setting up led ${name}"
  51
  52                 printf "%s %s %d\n" \
  53                         "$sysfs" \
  54                         "$(sed -ne 's/^.*\[\(.*\)\].*$/\1/p' /sys/class/leds/${sysfs}/trigger)" \
  55                         "$(cat /sys/class/leds/${sysfs}/brightness)" \
  56                                 >> /var/run/led.state
  57
  58                 [ "$default" = 0 ] &&
  59                         echo 0 >/sys/class/leds/${sysfs}/brightness
  60
  61                 echo $trigger > /sys/class/leds/${sysfs}/trigger 2> /dev/null
  62                 ret="$?"
  63
  64                 [ $default = 1 ] &&
  65                         cat /sys/class/leds/${sysfs}/max_brightness > /sys/class/leds/${sysfs}/brightness
  66
  67                 [ $ret = 0 ] || {
  68                         echo >&2 "Skipping trigger '$trigger' for led '$name' due to missing kernel module"
  69                         return 1
  70                 }
  71                 case "$trigger" in
  72                 "netdev")
  73                         [ -n "$dev" ] && {
  74                                 echo $dev > /sys/class/leds/${sysfs}/device_name
  75                                 for m in $mode; do
  76                                         [ -e "/sys/class/leds/${sysfs}/$m" ] && \
  77                                                 echo 1 > /sys/class/leds/${sysfs}/$m
  78                                 done
  79                                 echo $interval > /sys/class/leds/${sysfs}/interval
  80                         }
  81                         ;;
  82
  83                 "timer"|"oneshot")
  84                         [ -n "$delayon" ] && \
  85                                 echo $delayon > /sys/class/leds/${sysfs}/delay_on
  86                         [ -n "$delayoff" ] && \
  87                                 echo $delayoff > /sys/class/leds/${sysfs}/delay_off
  88                         ;;
  89
  90                 "usbport")
  91                         local p
  92
  93                         for p in $ports; do
  94                                 echo 1 > /sys/class/leds/${sysfs}/ports/$p
  95                         done
  96                         ;;
  97
  98                 "port_state")
  99                         [ -n "$port_state" ] && \
 100                                 echo $port_state > /sys/class/leds/${sysfs}/port_state
 101                         ;;
 102
 103                 "gpio")
 104                         echo $gpio > /sys/class/leds/${sysfs}/gpio
 105                         echo $inverted > /sys/class/leds/${sysfs}/inverted
 106                         ;;
 107
 108                 switch[0-9]*)
 109                         local port_mask speed_mask
 110
 111                         config_get port_mask $1 port_mask
 112                         [ -n "$port_mask" ] && \
 113                                 echo $port_mask > /sys/class/leds/${sysfs}/port_mask
 114                         config_get speed_mask $1 speed_mask
 115                         [ -n "$speed_mask" ] && \
 116                                 echo $speed_mask > /sys/class/leds/${sysfs}/speed_mask
 117                         [ -n "$mode" ] && \
 118                                 echo "$mode" > /sys/class/leds/${sysfs}/mode
 119                         ;;
 120                 esac
 121         }
 122 }
 123
 124 start() {
 125         [ -e /sys/class/leds/ ] && {
 126                 [ -s /var/run/led.state ] && {
 127                         local led trigger brightness
 128                         while read led trigger brightness; do
 129                                 [ -e "/sys/class/leds/$led/trigger" ] && \
 130                                         echo "$trigger" > "/sys/class/leds/$led/trigger"
 131
 132                                 [ -e "/sys/class/leds/$led/brightness" ] && \
 133                                         echo "$brightness" > "/sys/class/leds/$led/brightness"
 134                         done < /var/run/led.state
 135                         rm /var/run/led.state
 136                 }
 137
 138                 config_load system
 139                 config_foreach load_led led
 140         }
 141 }