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$ledpath/chan-name" 2>/dev/null) || \
  14                 echo "led label not found" 1>&2
  15
  16         echo "$label"
  17 }
  18
  19 led_set_attr() {
  20         [ -f "/sys/class/leds/$1/$2" ] && echo "$3" > "/sys/class/leds/$1/$2"
  21 }
  22
  23 led_timer() {
  24         led_set_attr $1 "trigger" "timer"
  25         led_set_attr $1 "delay_on" "$2"
  26         led_set_attr $1 "delay_off" "$3"
  27 }
  28
  29 led_on() {
  30         led_set_attr $1 "trigger" "none"
  31         led_set_attr $1 "brightness" 255
  32 }
  33
  34 led_off() {
  35         led_set_attr $1 "trigger" "none"
  36         led_set_attr $1 "brightness" 0
  37 }
  38
  39 status_led_set_timer() {
  40         led_timer $status_led "$1" "$2"
  41         [ -n "$status_led2" ] && led_timer $status_led2 "$1" "$2"
  42 }
  43
  44 status_led_set_heartbeat() {
  45         led_set_attr $status_led "trigger" "heartbeat"
  46 }
  47
  48 status_led_on() {
  49         led_on $status_led
  50         [ -n "$status_led2" ] && led_on $status_led2
  51 }
  52
  53 status_led_off() {
  54         led_off $status_led
  55         [ -n "$status_led2" ] && led_off $status_led2
  56 }
  57
  58 status_led_blink_slow() {
  59         led_timer $status_led 1000 1000
  60 }
  61
  62 status_led_blink_fast() {
  63         led_timer $status_led 100 100
  64 }
  65
  66 status_led_blink_preinit() {
  67         led_timer $status_led 100 100
  68 }
  69
  70 status_led_blink_failsafe() {
  71         led_timer $status_led 50 50
  72 }
  73
  74 status_led_blink_preinit_regular() {
  75         led_timer $status_led 200 200
  76 }