John Crispin ab196b75ea om-watchdog: Stop om-watchdog via procd before rebooting
It was noticed that the system can hang during the reboot before the kernel
actually triggers the system reset and before all processes are stopped. The
watchdog didn't automatically restart the system because the om-watchdog
process was still running and triggering the hardware watchdog.

Instead the system should stop the watchdog during the shutdown to get the
benefit of an hardware reset in case of an software related problem. This stop
can be done quite easily with procd because it keeps track of its started
processes.

Signed-off-by: Sven Eckelmann <sven.eckelmann@open-mesh.com>

SVN-Revision: 48889
2016-03-03 20:24:33 +00:00

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#!/bin/sh /etc/rc.common
#
# Copyright (C) 2011 OpenWrt.org
#
START=11
STOP=11
USE_PROCD=1
NAME=om-watchdog
PROG=/sbin/om-watchdog
get_gpio() {
if [ -r /lib/ar71xx.sh ]; then
. /lib/ar71xx.sh
local board=$(ar71xx_board_name)
case "$board" in
"om2p"|"om2p-hs"|"om2p-hsv2")
return 12
;;
"om2pv2"|"om2p-lc")
return 26
;;
"om5p"|"om5p-an")
return 11
;;
"mr600v2")
return 15
;;
"mr900"|"mr900v2"|"mr1750")
return 16
;;
esac
else
#we assume it is om1p in this case
return 3
fi
return 255
}
start_service() {
get_gpio
gpio="$?"
[ "$gpio" != "255" ] || return
procd_open_instance
procd_set_param command "${PROG}" "${gpio}"
procd_set_param respawn
procd_close_instance
}