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                 "heartbeat")
  73                         echo "${inverted}" > "/sys/class/leds/${sysfs}/invert"
  74                         ;;
  75
  76                 "netdev")
  77                         [ -n "$dev" ] && {
  78                                 echo $dev > /sys/class/leds/${sysfs}/device_name
  79                                 for m in $mode; do
  80                                         [ -e "/sys/class/leds/${sysfs}/$m" ] && \
  81                                                 echo 1 > /sys/class/leds/${sysfs}/$m
  82                                 done
  83                                 echo $interval > /sys/class/leds/${sysfs}/interval
  84                         }
  85                         ;;
  86
  87                 "timer"|"oneshot")
  88                         [ -n "$delayon" ] && \
  89                                 echo $delayon > /sys/class/leds/${sysfs}/delay_on
  90                         [ -n "$delayoff" ] && \
  91                                 echo $delayoff > /sys/class/leds/${sysfs}/delay_off
  92                         ;;
  93
  94                 "usbport")
  95                         local p
  96
  97                         for p in $ports; do
  98                                 echo 1 > /sys/class/leds/${sysfs}/ports/$p
  99                         done
 100                         ;;
 101
 102                 "port_state")
 103                         [ -n "$port_state" ] && \
 104                                 echo $port_state > /sys/class/leds/${sysfs}/port_state
 105                         ;;
 106
 107                 "gpio")
 108                         echo $gpio > /sys/class/leds/${sysfs}/gpio
 109                         echo $inverted > /sys/class/leds/${sysfs}/inverted
 110                         ;;
 111
 112                 switch[0-9]*)
 113                         local port_mask speed_mask
 114
 115                         config_get port_mask $1 port_mask
 116                         [ -n "$port_mask" ] && \
 117                                 echo $port_mask > /sys/class/leds/${sysfs}/port_mask
 118                         config_get speed_mask $1 speed_mask
 119                         [ -n "$speed_mask" ] && \
 120                                 echo $speed_mask > /sys/class/leds/${sysfs}/speed_mask
 121                         [ -n "$mode" ] && \
 122                                 echo "$mode" > /sys/class/leds/${sysfs}/mode
 123                         ;;
 124                 esac
 125         }
 126 }
 127
 128 start() {
 129         [ -e /sys/class/leds/ ] && {
 130                 [ -s /var/run/led.state ] && {
 131                         local led trigger brightness
 132                         while read led trigger brightness; do
 133                                 [ -e "/sys/class/leds/$led/trigger" ] && \
 134                                         echo "$trigger" > "/sys/class/leds/$led/trigger"
 135
 136                                 [ -e "/sys/class/leds/$led/brightness" ] && \
 137                                         echo "$brightness" > "/sys/class/leds/$led/brightness"
 138                         done < /var/run/led.state
 139                         rm /var/run/led.state
 140                 }
 141
 142                 config_load system
 143                 config_foreach load_led led
 144         }
 145 }