package/base-files/files/lib/functions/leds.sh

   1 #!/bin/sh
   2 # Copyright (C) 2013 OpenWrt.org
   3
   4 get_dt_led() {
   5         local label
   6         local ledpath
   7         local basepath="/proc/device-tree"
   8         local nodepath="$basepath/aliases/led-$1"
   9
  10         [ -f "$nodepath" ] && ledpath=$(cat "$nodepath")
  11         [ -n "$ledpath" ] && \
  12                 label=$(cat "$basepath$ledpath/label" 2>/dev/null) || \
  13                 label=$(cat "$basepath$ledpath/chan-name" 2>/dev/null)
  14
  15         echo "$label"
  16 }
  17
  18 led_set_attr() {
  19         [ -f "/sys/class/leds/$1/$2" ] && echo "$3" > "/sys/class/leds/$1/$2"
  20 }
  21
  22 led_timer() {
  23         led_set_attr $1 "trigger" "timer"
  24         led_set_attr $1 "delay_on" "$2"
  25         led_set_attr $1 "delay_off" "$3"
  26 }
  27
  28 led_on() {
  29         led_set_attr $1 "trigger" "none"
  30         led_set_attr $1 "brightness" 255
  31 }
  32
  33 led_off() {
  34         led_set_attr $1 "trigger" "none"
  35         led_set_attr $1 "brightness" 0
  36 }
  37
  38 status_led_set_timer() {
  39         led_timer $status_led "$1" "$2"
  40         [ -n "$status_led2" ] && led_timer $status_led2 "$1" "$2"
  41 }
  42
  43 status_led_set_heartbeat() {
  44         led_set_attr $status_led "trigger" "heartbeat"
  45 }
  46
  47 status_led_on() {
  48         led_on $status_led
  49         [ -n "$status_led2" ] && led_on $status_led2
  50 }
  51
  52 status_led_off() {
  53         led_off $status_led
  54         [ -n "$status_led2" ] && led_off $status_led2
  55 }
  56
  57 status_led_blink_slow() {
  58         led_timer $status_led 1000 1000
  59 }
  60
  61 status_led_blink_fast() {
  62         led_timer $status_led 100 100
  63 }
  64
  65 status_led_blink_preinit() {
  66         led_timer $status_led 100 100
  67 }
  68
  69 status_led_blink_failsafe() {
  70         led_timer $status_led 50 50
  71 }
  72
  73 status_led_blink_preinit_regular() {
  74         led_timer $status_led 200 200
  75 }