#!/bin/sh
#
# slmodemd:    Starts the SmartLink Modem Daemon
#
# chkconfig: 345 90 10
# description: This is the user space part of the SmartLink Modem driver
# processname: slmodemd
# config: /etc/sysconfig/slmodem
#
#
# by Luca Boni, 10/02/2005
# http://www.ok--computer.com
#
#
# NOTE:
# If you put '#' at the begin of a line, it becomes a comment and it will be ignored
# If you want to re-enable the line, uncomment it removing the '#'


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

# Some vars that will be used: DON'T change them
# if you don't known exactly what you are doing!
PROG=slmodemd
DAEMON_BIN=/usr/sbin/$PROG
CONFIG=/etc/sysconfig/slmodem
SLMODEMD_OPTS=
RETVAL=0

# Default configuration for Device and Country
# If you have a USB modem, replace "slamr" with "slusb" and "slamr0" in "slusb0"
# Do "slmodemd --countrylist" from shell for a complete list of country names
MODULE=slamr
SLMODEMD_DEVICE=slamr0
SLMODEMD_COUNTRY=ITALY

# Test daemon binary presence 
# Maybe you don't need this: comment next 5 line if you wish
test -f $DAEMON_BIN || {
	gprintf "Error: needed \"$DAEMON_BIN\" daemon binary not present.\n"
	gprintf "Please install SmartLink modem sotware properly and retry.\n"
	exit -1
}

# Test kernel module presence
# (do not try to start on a kernel which does not support it)
# Maybe you don't need this: comment next 5 lines if you wish
grep -q $MODULE\..*o /lib/modules/`uname -r`/modules.dep || {
	gprintf "Sorry, your kernel doesn't support SmartLink modem driver or it is not installed properly.\n" 
	gprintf "Please go to http://www.smlink.com and download it.\n"
	exit -1
}

# Override default group and permissions if defined in $CONFIG;
# other valid options also can be put into SLMODEMD_OPTS variable
# Maybe you don't need this: comment next 5 lines if you wish
if [ -f $CONFIG ]; then
        . $CONFIG
	[ "$GROUP" ] && SLMODEMD_OPTS="$SLMODEMD_OPTS --group=$GROUP"
	[ "$PERMS" ] && SLMODEMD_OPTS="$SLMODEMD_OPTS --perm=$PERMS"
fi

start() {
	# Load kernel module only if it is not loaded yet
	# Two seconds are required to my system to load it
	# and create the device /dev/slamr0 (or slusb0)
	# Starting slmodemd daemon binary before that time
	# will fail. Test your system to verify if it also
	# needs this pause, otherwise you can remove it
	cat /proc/modules | grep $MODULE >/dev/null || {
	    /sbin/modprobe $MODULE || {
		gprintf "Error loading kernel module \"$MODULE.(k)o\" ... exiting.\n"
		gprintf "Please reinstall SmartLink modem driver.\n"
		exit -1
	    }
	    sleep 2
	}
	# Start modem binary daemon and make necessary symlink
	# Only modem driver versions > 2.9.7 support "-v" command line option
	# If you are using an older version, a small error message will appear;
	# to avoid this, comment next 2 lines and uncomment the thirth one 
	VERSION=`$DAEMON_BIN -v | gawk '{print $5}'`
	gprintf "Starting SmartLink modem driver version $VERSION for $SLMODEMD_DEVICE: "
	#gprintf "Starting SmartLink modem driver for $SLMODEMD_DEVICE: "
	$DAEMON_BIN </dev/null >/dev/null 2>/dev/null --country=$SLMODEMD_COUNTRY $SLMODEMD_OPTS /dev/$SLMODEMD_DEVICE &
	RETVAL=$?
	[ $RETVAL -eq 0 ] && success $"$PROG startup" || failure $"$PROG startup"
	echo
	[ $RETVAL -eq 0 ] && touch /var/lock/subsys/$PROG
	[ $RETVAL -eq 0 ] && ln -s /dev/ttySL0 /dev/modem
	return $RETVAL
}

stop() {
	gprintf "Shutting down SmartLink modem driver: "
	killproc $PROG
	RETVAL=$?
	/sbin/modprobe -r slamr slusb
	echo
	[ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$PROG
	[ $RETVAL -eq 0 ] && rm -f /dev/modem
	return $RETVAL
}

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

exit $RETVAL