#! /bin/sh

# waitfor_xpds: wait until all Astribanks were initialized
# $Id$

# Written by Oron Peled <oron@actcom.co.il>
# Copyright (C) 2008-2009, Xorcom
#
# All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#


set -e

# For lab testing
mydir=`dirname $0`
PATH="${mydir}:${PATH}"

[ -r /etc/dahdi/init.conf ] && . /etc/dahdi/init.conf

ab_list() {
	# Only check /sys info (don't use /proc anymore).
	ab=`find /sys/bus/astribanks/devices/xbus-*/ -name waitfor_xpds 2> /dev/null || :`
	echo $ab
}

# Any hardware?
if ! dahdi_hardware="`which dahdi_hardware 2>/dev/null`"; then
	echo >&2 "$0: Missing dahdi_hardware"
	exit 0
fi
if ! astribank_is_starting="`which astribank_is_starting 2>/dev/null`"; then
	echo >&2 "$0: Missing astribank_is_starting"
	exit 0
fi
if [ "`$dahdi_hardware | grep xpp_usb`" != "" ]; then
	astribank_is_starting -v -a
fi
if ! astribank_is_starting; then
	exit 0
fi

# Wait for driver and first device
echo -n 1>&2 "Astribanks detection "
tries=10
while [ ! -e "/sys/bus/astribanks/devices/xbus-00" ]
do
	if [ "$tries" -le 0 ]; then
		echo 1>&2 "TIMEOUT"
		exit 1
	fi
	echo -n 1>&2 "."
	sleep 1
	: $((tries-=1))
done
echo ""

# Wait for device to stabilize and XPD's to finish initalizations
echo 1>&2 "Astribanks initializing spans"
while
	if ! ab=`ab_list`; then
		exit 1
	fi
	test "$oldab" != "$ab"
do
	oldab="$ab"
	cat $ab
done

if [ "$XPP_HOTPLUG_DAHDI" = yes ]; then
	if [ "$CALLED_FROM_ATRIBANK_HOOK" = '' ]; then
		# Now we can wait until the hotplug run would remove the semaphore
		echo -n 1>&2 "Other DAHDI initializations... "
		astribank_is_starting -v -w 1>&2
	fi
else
	# Non-hotplug -- Sequential initialization, remove semaphore
	astribank_is_starting -v -r 1>&2
fi