Add some diagnostic stuff for au1000, failsafe will need system button driver rewrite

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7101 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/au1000-2.6/base-files/default/etc/diag.sh

@@ -0,0 +1,25 @@
+#!/bin/sh
+# Copyright (C) 2007 OpenWrt.org
+
+set_led() {
+	local led="$1"
+	local state="$2"
+	[ -d "/sys/class/leds/mtx1:$led" ] && echo "$state" > "/sys/class/leds/mtx1:$led/brightness"
+}
+
+set_state() {
+	case "$1" in
+		preinit)
+			set_led green 0
+			set_led red 1
+		;;
+		failsafe)
+			set_led green 1
+			set_led red 1
+		;;
+		done)
+			set_led green 1
+			set_led red 0
+		;;
+	esac
+}

target/linux/au1000-2.6/base-files/default/etc/init.d/done

@@ -0,0 +1,9 @@
+#!/bin/sh /etc/rc.common
+# Copyright (C) 2007 OpenWrt.org
+
+START=95
+boot() {
+	# set leds to normal state
+	. /etc/diag.sh
+	set_state done
+}

target/linux/au1000-2.6/base-files/default/etc/preinit

@@ -0,0 +1,58 @@
+#!/bin/sh
+# Copyright (C) 2007 OpenWrt.org
+
+. /etc/functions.sh
+. /etc/diag.sh
+
+failsafe() {
+	lock /tmp/.failsafe
+	
+	set_state failsafe
+
+	netmsg 192.168.1.255 "Entering Failsafe!"
+	telnetd -l /bin/login <> /dev/null 2>&1
+
+	ash --login
+}
+
+export PATH=/bin:/sbin:/usr/bin:/usr/sbin
+mount none /proc -t proc
+size=$(awk '/Mem:/ {l=5242880;print((s=$2/2)<l)?$2-l:s}' /proc/meminfo)
+mount none /tmp -t tmpfs -o size=$size
+if grep devfs /proc/filesystems > /dev/null; then
+	mount none /dev -t devfs
+	M0=/dev/pty/m0
+	M1=/dev/pty/m1
+else
+	mount -t sysfs none /sys
+	mount -t tmpfs tmpfs /dev -o size=512K
+	mknod /dev/console c 5 1
+	mkdir /dev/shm
+	/sbin/hotplug2 --no-persistent --coldplug --max_children 1
+	M0=/dev/ptmx
+	M1=/dev/ptmx
+fi
+mkdir -p /dev/pts
+mount none /dev/pts -t devpts
+
+# the shell really doesn't like having stdin/out closed
+# that's why we use /dev/pty/m0 and m1 as replacement
+# for /dev/console if there's no serial console available
+dd if=/dev/console of=/dev/null bs=1 count=0 >/dev/null 2>/dev/null || \
+	exec <$M0 >$M1 2>&0
+
+set_state preinit
+#FIXME : use the MTX-1 button to catch failsafe
+trap 'FAILSAFE=true' USR1
+echo '/sbin/hotplug' > /proc/sys/kernel/hotplug
+
+ifname=eth0
+
+eval ${FAILSAFE:+failsafe}
+
+lock -w /tmp/.failsafe
+set_state preinit
+echo /sbin/hotplug-call > /proc/sys/kernel/hotplug
+
+mount_root
+exec /sbin/init