#!/bin/sh
#
# gsmd	This shell script starts and stops gsmd.
#
# chkconfig: 345 90 40
# description: Gsmd manages access to a serial- or USB-connected GSM
# processname: gsmd

# If you must specify special options, uncomment and modify the next line
GSMD_OPTS="-s 115200 -F"
# If your GSM device needs to be powered up, uncommend and modify the next line
GSM_POW="/sys/bus/platform/devices/gta01-pm-gsm.0/power_on"
GSM_DEV="/dev/ttySAC0"

# Source function library.
#. /etc/rc.d/init.d/functions

RETVAL=0
prog="gsmd"

start() {
	# FIXME add check whether GSM_POW is set at all, otherwise don't try to power on
	# Power on GSM device
	if [ -e "${GSM_POW} ]
	then
		echo -n "Powering up GSM device..."
		echo "1" > ${GSM_POW}
		sleep 1
		echo "done"
	else
		echo "GSM device not found. Aborting startup"
		return false
	fi
	# Start daemons.
	echo -n "Starting $prog: "
	# We don't use the daemon function here because of a known bug
	# in initlog -- it spuriously returns a nonzero status when 
	# starting daemons that fork themselves.  See
	# http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=130629
	# for discussion.  Fortunately:
	#
	# 1. gsmd startup can't fail, or at least not in the absence of
	# much larger resource-exhaustion problems that would be very obvious.
	#
	# 2. We don't need all the logging crud that daemon/initlog sets
	# up -- gsmd does its own syslog calls.
	#
	if [ -e "${GSM_DEV}" ]
	then
		chown uucp.uucp ${GSM_DEV}
		mkdir -fp /usr/spool/uucp
		chown uucp.uucp /usr/spool/uucp
		stty -F /dev/ttySAC0 crtscts
		gsmd -p ${GSM_DEV} ${GSMD_OPTS}
		echo "success"
	else
	    # User needs to symlink ${GPS_DEV} to the right thing
	    echo "No ${GSM_DEV} device, aborting gsmd startup."
	fi
	RETVAL=$?
	echo
	[ $RETVAL -eq 0 ] && touch /var/lock/subsys/gsmd
	return $RETVAL
}

stop() {
	# Stop daemons.
	echo -n "Shutting down $prog: "
        killall gsmd
#        killproc gsmd
	RETVAL=$?
	echo
	if [ $RETVAL -eq 0 ]
	then
	    rm -f /var/lock/subsys/gsmd;
	fi
	return $RETVAL
}

# See how we were called.
case "$1" in
  start)
	start
	;;
  stop)
	stop
	;;
  restart|reload)
	stop
	start
	RETVAL=$?
	;;
  condrestart)
	if [ -f /var/lock/subsys/gsmd ]; then
	    stop
	    start
	    RETVAL=$?
	fi
	;;
  status)
#	status gsmd
#	RETVAL=$?
	;;
  *)
	echo "Usage: $0 {start|stop|restart|condrestart|status}"
	exit 1
esac

exit $RETVAL