openwrt/target/linux/ar7/base-files/etc/diag.sh

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#!/bin/sh
# Copyright (C) 2007-2013 OpenWrt.org
# This setup gives us 4.5 distinguishable states:
#
# (1-LED) Solid OFF: Bootloader running, or kernel hung (timer task stalled)
# (1-LED) Solid ON: Kernel hung (timer task stalled)
# (2-LED) Solid RED: Bootloader running, or kernel hung (timer task stalled)
# (2-LED) Solid YELLOW: Kernel hung (timer task stalled)
# 5Hz blink: preinit
# 10Hz blink: failsafe
# (1-LED) Heartbeat: normal operation
# (2-LED) Solid GREEN: normal operation
. /lib/functions/leds.sh
get_status_led() {
[ -d "/sys/class/leds/status" ] && status_led="status"
[ -d "/sys/class/leds/power:green" ] && status_led="power:green"
}
set_state() {
get_status_led
case "$1" in
preinit)
status_led_set_timer 100 100
;;
failsafe)
status_led_set_timer 50 50
;;
done)
[ "$status_led" = "status" ] && {
status_led_set_heartbeat
}
[ "$status_led" = "power:green" ] && {
status_led_set_on
led_off "power:red"
}
;;
esac
}