#!/sbin/runscript
# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/net-dialup/isdn4k-utils/files/isdn.initd,v 1.4 2006/02/04 21:14:17 sbriesen Exp $

opts="${opts} save reload makedev info"

depend() {
	use hisax
	[ "$DEPEND_ON_CAPI" = "yes" ] && need capi
}

# gets list of installed cards
card_list() {  # output: <contr> <chan> <card>
	local IDMAP=() IDX=1 CONTR=0 LAST='-' CARD=''
	read -a IDMAP < <(/bin/head 2>/dev/null -n1 /dev/isdninfo) || return 1
	while [ ${IDX} -lt ${#IDMAP[*]} ]; do
		CARD=${IDMAP[$IDX]}
		if [ "${CARD}" != "-" -a "${CARD}" != "${LAST}" ]; then
			echo "${CONTR} $((IDX-1)) ${CARD}"; : $((CONTR++))
		fi
		LAST="${CARD}"; : $((IDX++))
	done
}

# gets CAPI controller name
capi_name() {  # <contr>
	/bin/sed -n "s:^${1} \+[^ ]\+ \+[^ ]\+ \+\([^ ]\+\) \+.\+\$:\1:p" \
		/proc/capi/controller 2>/dev/null
}

# displays installed ISDN cards
show_cards() {  # < $(card_list)
	local CONTR CHAN CARD CAPI
	while read CONTR CHAN CARD; do
		case "${CARD}" in
			capidrv-[1-9]*)
				CAPI=$(capi_name ${CARD/capidrv-})
				einfo "${1}${CONTR} ${CARD} (${CAPI})"
				;;
			*)
				einfo "${1}${CONTR} ${CARD}"
				;;
		esac
	done
}

# creates ISDN devices for static /dev and udev
makedev() {
	if [ ! -e /dev/.devfsd ]; then
		local CHAN
		pushd /dev >/dev/null || return 1
		ebegin "Creating ISDN devices"
		/bin/rm -f isdninfo isdnctrl* ippp[0-9]* isdn[0-9]* ttyI[0-9]*
		for ((CHAN = 0; CHAN < ISDN_MAX_CHANNELS; CHAN++)); do
			/bin/mknod -m "${ISDNDEV_MODE}" isdn${CHAN}     c 45 $((CHAN))       # b
			/bin/mknod -m "${ISDNDEV_MODE}" isdnctrl${CHAN} c 45 $((CHAN + 64))  # ctrl
			/bin/mknod -m "${ISDNDEV_MODE}" ippp${CHAN}     c 45 $((CHAN + 128)) # ppp
			/bin/mknod -m "${ISDNDEV_MODE}" ttyI${CHAN}     c 43 $((CHAN))       # tty
		done
		/bin/chgrp "${ISDNDEV_GROUP}" isdnctrl* ippp[0-9]* isdn[0-9]* ttyI[0-9]*
		/bin/mknod -m 444 isdninfo c 45 255
		/bin/ln -snf isdnctrl0 isdnctrl
		popd >/dev/null
		eend 0
	fi
}


start() {
	# create ISDN devices if necessary
	[ -c /dev/isdninfo -a -c /dev/isdnctrl0 ] || makedev

	local LIST="$(card_list)"

	if [ -z "${LIST}" ]; then
		eerror "ERROR: no ISDN cards available"
		return 1
	fi

	ebegin "Loading isdnctrl configuration"
	[ ! -f "${ISDNCTRL_CONFIG}" ] || /usr/sbin/isdnctrl readconf "${ISDNCTRL_CONFIG}" >/dev/null
	eend $?
	
	if [ -n "${IPROFD_SETTINGS}" ]; then
		ebegin "Starting modem-register daemon"
		start-stop-daemon 2>/dev/null --start --quiet --exec /usr/sbin/iprofd -- "${IPROFD_SETTINGS}"
		eend $?
	fi

	einfo "Available ISDN cards:"
	show_cards "  " < <(echo "${LIST}")
	return 0
}

stop() {
	local RET FCNT=0

        # if some other monitoring processes are running, kill 'em
	if /bin/fuser 2>/dev/null -s /dev/isdninfo; then
		ebegin "Stopping monitoring processes"
		/bin/fuser -ks /dev/isdninfo; RET=$?
		while [ ${RET} -eq 0 -a ${FCNT} -lt 10 ]; do
			: $((FCNT++)); sleep 0.5; /bin/fuser -s /dev/isdninfo; RET=$?
		done
		[ $RET -ne 0 ]
		eend $?
	fi

	if [ -n "${IPROFD_SETTINGS}" ]; then
		ebegin "Stopping modem-register daemon"
		start-stop-daemon 2>/dev/null --stop --quiet --retry 5 --exec /usr/sbin/iprofd
		eend $?
	fi

	ebegin "Unloading isdnctrl configuration"
	/usr/sbin/isdnctrl reset force &>/dev/null
	eend $?

	return 0  # ignore errors
}

save() {
	ebegin "Saving isdnctrl configuration"
	/usr/sbin/isdnctrl writeconf "${ISDNCTRL_CONFIG}" >/dev/null
	eend $?
}

reload() {
	ebegin "Reloading isdnctrl configuration"
	/usr/sbin/isdnctrl reset >/dev/null
	[ ! -f "${ISDNCTRL_CONFIG}" ] || \
	/usr/sbin/isdnctrl readconf "${ISDNCTRL_CONFIG}" >/dev/null
	eend $?
}

info() {
	local LIST="$(card_list)"
	if [ -z "${LIST}" ]; then
		eerror "ERROR: no ISDN cards available"
		return 1
	fi
	show_cards < <(echo "${LIST}")
}