#!/bin/sh
#
# Start up the IrDA process and load necessary modules
#
if [ "`whoami`" != "root" ]; then
	sudo $0 $1
	exit 0
fi

function unload_module() {
	module=$1

	if [ "`lsmod | grep ^$module | grep -v grep`" != "" ]; then
		echo -n " $module"
		/sbin/rmmod $module
	fi
}

MODULES="ircomm_tty irtty_sir sir_dev nsc_ircc ircomm irda"

case "$1" in
	start)
		PID=`ps ax | grep irattach | grep -v grep | cut -d ' ' -f 1`
		if [ "$PID" != "" ]; then
			echo "irattach already running - aborting..."
			exit 1
		fi

		# Start IRDA
		echo -n "Starting up the IR daemon and loading modules:"

		for module in $MODULES; do
			echo -n " $module"
			/sbin/modprobe $module
		done

		echo -n ", irattach"
		/usr/sbin/irattach irda0 -s >/dev/null

		echo .
		;;
	stop)
		# Kill IRDA
		echo -n "Stopping IRDA and removing used modules: "

		# Kill the irattach process and remove the modules
		echo -n "irattach"
		while [ `pidof irattach` > 0 ]; do
			killall -9 -q irattach
		done

		echo -n ", modules:"

		for module in $MODULES; do
			unload_module $module
		done

	    	echo .
        	;;
	restart)
		$0 stop; $0 start
		;;
	status)
		PID=`ps ax | grep irattach | grep -v grep | cut -d ' ' -f 1`
		if [ "$PID" = "" ]; then
			echo "IR daemon not running"
		else
			echo "IR daemon running at PID $PID"
		fi
		;;
	*)
		echo "Usage: $0 {start|stop|restart|status}"
		echo " "
		exit 1  
esac