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 led_color_set() {
   7         local cfg="$1"
   8         local sysfs="$2"
   9
  10         local max_b
  11         local colors
  12         local color
  13         local multi_intensity
  14         local value
  15         local write
  16
  17         [ -e /sys/class/leds/${sysfs}/multi_intensity ] || return
  18         [ -e /sys/class/leds/${sysfs}/multi_index ] || return
  19
  20         max_b="$(cat /sys/class/leds/${sysfs}/max_brightness)"
  21         colors="$(cat /sys/class/leds/${sysfs}/multi_index | tr " " "\n")"
  22         multi_intensity=""
  23         for color in $colors; do
  24                 config_get value $1 "color_${color}" "0"
  25                 [ "$value" -gt 0 ] && write=1
  26                 [ "$value" -gt "$max_b" ] && value="$max_b"
  27                 multi_intensity="${multi_intensity}${value} "
  28         done
  29
  30         # Check if any color is configured
  31         [ "$write" = 1 ] || return
  32         # Remove last whitespace
  33         multi_intensity="${multi_intensity:0:-1}"
  34
  35         echo "setting '${name}' led color to '${multi_intensity}'"
  36         echo "${multi_intensity}" > /sys/class/leds/${sysfs}/multi_intensity
  37 }
  38
  39 load_led() {
  40         local name
  41         local sysfs
  42         local trigger
  43         local dev
  44         local ports
  45         local mode
  46         local default
  47         local delayon
  48         local delayoff
  49         local interval
  50
  51         config_get sysfs $1 sysfs
  52         config_get name $1 name "$sysfs"
  53         config_get trigger $1 trigger "none"
  54         config_get dev $1 dev
  55         config_get ports $1 port
  56         config_get mode $1 mode
  57         config_get_bool default $1 default "0"
  58         config_get delayon $1 delayon
  59         config_get delayoff $1 delayoff
  60         config_get interval $1 interval "50"
  61         config_get port_state $1 port_state
  62         config_get delay $1 delay "150"
  63         config_get message $1 message ""
  64         config_get gpio $1 gpio "0"
  65         config_get_bool inverted $1 inverted "0"
  66
  67         # execute application led trigger
  68         [ -f "/usr/libexec/led-trigger/${trigger}" ] && {
  69                 . "/usr/libexec/led-trigger/${trigger}"
  70                 return 0
  71         }
  72
  73         [ "$trigger" = "usbdev" ] && {
  74                 # Backward compatibility: translate to the new trigger
  75                 trigger="usbport"
  76                 # Translate port of root hub, e.g. 4-1 -> usb4-port1
  77                 ports=$(echo "$dev" | sed -n 's/^\([0-9]*\)-\([0-9]*\)$/usb\1-port\2/p')
  78                 # Translate port of extra hub, e.g. 2-2.4 -> 2-2-port4
  79                 [ -z "$ports" ] && ports=$(echo "$dev" | sed -n 's/\./-port/p')
  80         }
  81
  82         [ -e /sys/class/leds/${sysfs}/brightness ] && {
  83                 echo "setting up led ${name}"
  84
  85                 printf "%s %s %d" \
  86                         "$sysfs" \
  87                         "$(sed -ne 's/^.*\[\(.*\)\].*$/\1/p' /sys/class/leds/${sysfs}/trigger)" \
  88                         "$(cat /sys/class/leds/${sysfs}/brightness)" \
  89                                 >> /var/run/led.state
  90                 # Save default color if supported
  91                 [ -e /sys/class/leds/${sysfs}/multi_intensity ] && {
  92                         printf " %s" \
  93                                 "$(sed 's/\ /:/g' /sys/class/leds/${sysfs}/multi_intensity)" \
  94                                 >> /var/run/led.state
  95                 }
  96                 printf "\n" >> /var/run/led.state
  97
  98                 [ "$default" = 0 ] &&
  99                         echo 0 >/sys/class/leds/${sysfs}/brightness
 100
 101                 [ $default = 1 ] &&
 102                         cat /sys/class/leds/${sysfs}/max_brightness > /sys/class/leds/${sysfs}/brightness
 103
 104                 led_color_set "$1" "$sysfs"
 105
 106                 echo $trigger > /sys/class/leds/${sysfs}/trigger 2> /dev/null
 107                 ret="$?"
 108                 [ $ret = 0 ] || {
 109                         echo >&2 "Skipping trigger '$trigger' for led '$name' due to missing kernel module"
 110                         return 1
 111                 }
 112                 case "$trigger" in
 113                 "heartbeat")
 114                         echo "${inverted}" > "/sys/class/leds/${sysfs}/invert"
 115                         ;;
 116
 117                 "netdev")
 118                         [ -n "$dev" ] && {
 119                                 echo $dev > /sys/class/leds/${sysfs}/device_name
 120                                 for m in $mode; do
 121                                         [ -e "/sys/class/leds/${sysfs}/$m" ] && \
 122                                                 echo 1 > /sys/class/leds/${sysfs}/$m
 123                                 done
 124                                 echo $interval > /sys/class/leds/${sysfs}/interval
 125                         }
 126                         ;;
 127
 128                 "timer"|"oneshot")
 129                         [ -n "$delayon" ] && \
 130                                 echo $delayon > /sys/class/leds/${sysfs}/delay_on
 131                         [ -n "$delayoff" ] && \
 132                                 echo $delayoff > /sys/class/leds/${sysfs}/delay_off
 133                         ;;
 134
 135                 "usbport")
 136                         local p
 137
 138                         for p in $ports; do
 139                                 echo 1 > /sys/class/leds/${sysfs}/ports/$p
 140                         done
 141                         ;;
 142
 143                 "port_state")
 144                         [ -n "$port_state" ] && \
 145                                 echo $port_state > /sys/class/leds/${sysfs}/port_state
 146                         ;;
 147
 148                 "gpio")
 149                         echo $gpio > /sys/class/leds/${sysfs}/gpio
 150                         echo $inverted > /sys/class/leds/${sysfs}/inverted
 151                         ;;
 152
 153                 switch[0-9]*)
 154                         local port_mask speed_mask
 155
 156                         config_get port_mask $1 port_mask
 157                         [ -n "$port_mask" ] && \
 158                                 echo $port_mask > /sys/class/leds/${sysfs}/port_mask
 159                         config_get speed_mask $1 speed_mask
 160                         [ -n "$speed_mask" ] && \
 161                                 echo $speed_mask > /sys/class/leds/${sysfs}/speed_mask
 162                         [ -n "$mode" ] && \
 163                                 echo "$mode" > /sys/class/leds/${sysfs}/mode
 164                         ;;
 165                 esac
 166         }
 167 }
 168
 169 start() {
 170         [ -e /sys/class/leds/ ] && {
 171                 [ -s /var/run/led.state ] && {
 172                         local led trigger brightness color
 173                         while read led trigger brightness color; do
 174                                 [ -e "/sys/class/leds/$led/trigger" ] && \
 175                                         echo "$trigger" > "/sys/class/leds/$led/trigger"
 176
 177                                 [ -e "/sys/class/leds/$led/brightness" ] && \
 178                                         echo "$brightness" > "/sys/class/leds/$led/brightness"
 179
 180                                 [ -e "/sys/class/leds/$led/multi_intensity" ] && \
 181                                         echo "$color" | sed 's/:/\ /g' > \
 182                                                 "/sys/class/leds/$led/multi_intensity"
 183                         done < /var/run/led.state
 184                         rm /var/run/led.state
 185                 }
 186
 187                 config_load system
 188                 config_foreach load_led led
 189         }
 190 }