#!/bin/sh
### BEGIN INIT INFO
# Provides: comedi
# Required-Start:
# Should-Start: haldaemon
# Required-Stop:
# Default-Start:  3 5
# Default-Stop:   0 1 2 6
# Description:    Start Name Service Cache Daemon
### END INIT INFO

#exit

set -u
set -e 
#set -x

MODPR=/sbin/modprobe
COM_CON=/usr/local/sbin/comedi_config
COM_CAL="/usr/local/bin/comedi_calibrate --calibrate"
#OPTIONS="--read-buffer 32 --write-buffer 32"
# modules to load - one module (with parameters) per line
COMEDI_MODULES="comedi_parport 0x378"
# erstmal deaktivieren
#		cb_pcidda 
#		ni_pcimio 
#		comedi_test"
# parport wird extra geladen, da es einen Parameter braucht

ACTION=start
[ $# -gt 0 ] && ACTION="$1"

case "$ACTION" in
	stop )
		if lsmod | grep -q comedi
			then	echo "Comedi is active ..."
			else	echo "Comedi is not active ..."
				exit 3
		  fi
		echo -e "$COMEDI_MODULES" | while read mod opt;  do $MODPR -r $mod; done
		$MODPR -r comedi
		echo "Comedi-Module wurden entfernt"
		;;
	restart|start )
		lsmod | grep -q comedi && "$0" stop
		$MODPR -r lp parport_pc ppdev parport || true
		sleep 1
		echo "Install comedi modules ..."
		devnum=0;
		echo -e "$COMEDI_MODULES" | while read mod opt
			do	echo -n "Configuring /dev/comedi$devnum as $mod ..."
				# create device nod if necessary
				[ -e "/dev/comedi$devnum" ] || mknod "/dev/comedi$devnum" c 98 "$devnum"
				$MODPR $mod || true
				sleep 1
				if $COM_CON /dev/comedi$devnum $mod $opt
					then	chgrp users /dev/comedi$devnum
						chmod 660 /dev/comedi$devnum
						echo -e "\t OK"
					else	echo -e "\t Failure!"
				  fi
				devnum=$((devnum+1))
		  done
		maxC=$devnum
		devnum=0
		while [ $devnum -lt $maxC ]
			do	$COM_CAL -f /dev/comedi$devnum || true
				# errors may occour, if the device can not be calibrated (e.g. parport) ...
				devnum=$((devnum+1))
		  done
		;;
	status )
		lsmod | grep -q comedi && exit 0
		exit 1
		;;
	* )
		echo "Syntax: $0 { start | stop | restart | status }"
		echo
		exit 1
	;;
  esac