Fix RUTX support

root/target/linux/ipq40xx/base-files/lib/functions/leds.sh

@@ -0,0 +1,94 @@
+# Copyright (C) 2013 OpenWrt.org
+
+get_dt_led_path() {
+	local ledpath
+	local basepath="/proc/device-tree"
+	local nodepath="$basepath/aliases/led-$1"
+
+	[ -f "$nodepath" ] && ledpath=$(cat "$nodepath")
+	[ -n "$ledpath" ] && ledpath="$basepath$ledpath"
+
+	echo "$ledpath"
+}
+
+get_dt_led() {
+	local label
+	local ledpath=$(get_dt_led_path $1)
+
+	[ -n "$ledpath" ] && \
+		label=$(cat "$ledpath/label" 2>/dev/null) || \
+		label=$(cat "$ledpath/chan-name" 2>/dev/null) || \
+		label=$(basename "$ledpath")
+
+	echo "$label"
+}
+
+led_set_attr() {
+	[ -f "/sys/class/leds/$1/$2" ] && echo "$3" > "/sys/class/leds/$1/$2"
+}
+
+led_timer() {
+	led_set_attr $1 "trigger" "timer"
+	led_set_attr $1 "delay_on" "$2"
+	led_set_attr $1 "delay_off" "$3"
+}
+
+led_on() {
+	led_set_attr $1 "trigger" "none"
+	led_set_attr $1 "brightness" 255
+}
+
+led_off() {
+	led_set_attr $1 "trigger" "none"
+	led_set_attr $1 "brightness" 0
+}
+
+status_led_restore_trigger() {
+	local trigger
+	local ledpath=$(get_dt_led_path $1)
+
+	[ -n "$ledpath" ] && \
+		trigger=$(cat "$ledpath/linux,default-trigger" 2>/dev/null)
+
+	[ -n "$trigger" ] && \
+		led_set_attr "$(get_dt_led $1)" "trigger" "$trigger"
+}
+
+status_led_set_timer() {
+	led_timer $status_led "$1" "$2"
+	[ -n "$status_led2" ] && led_timer $status_led2 "$1" "$2"
+}
+
+status_led_set_heartbeat() {
+	led_set_attr $status_led "trigger" "heartbeat"
+}
+
+status_led_on() {
+	led_on $status_led
+	[ -n "$status_led2" ] && led_on $status_led2
+}
+
+status_led_off() {
+	led_off $status_led
+	[ -n "$status_led2" ] && led_off $status_led2
+}
+
+status_led_blink_slow() {
+	led_timer $status_led 1000 1000
+}
+
+status_led_blink_fast() {
+	led_timer $status_led 100 100
+}
+
+status_led_blink_preinit() {
+	led_timer $status_led 100 100
+}
+
+status_led_blink_failsafe() {
+	led_timer $status_led 50 50
+}
+
+status_led_blink_preinit_regular() {
+	led_timer $status_led 200 200
+}