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#!/bin/sh

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#------------------------------------------------------------------------------

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#

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#  EtherCAT rc script

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#

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#  $Id$

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#

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#  Copyright (C) 2006  Florian Pose, Ingenieurgemeinschaft IgH

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#

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#  This file is part of the IgH EtherCAT Master.

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#

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#  The IgH EtherCAT Master is free software; you can redistribute it

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#  and/or modify it under the terms of the GNU General Public License

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#  as published by the Free Software Foundation; version 2 of the License.

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#

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#  The IgH EtherCAT Master is distributed in the hope that it will be

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#  useful, but WITHOUT ANY WARRANTY; without even the implied warranty of

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#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

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#  GNU General Public License for more details.

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#

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#  You should have received a copy of the GNU General Public License

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#  along with the IgH EtherCAT Master; if not, write to the Free Software

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#  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

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#

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#------------------------------------------------------------------------------

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CONFIGFILE=/etc/sysconfig/ethercat

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#------------------------------------------------------------------------------

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print_usage()

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{

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    echo "Usage: $0 { start | stop | restart }"

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}

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unload_module()

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{

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    if lsmod | grep ^$1 > /dev/null; then

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	echo "  unloading module \"$1\"..."

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	rmmod $1 || exit 1

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    fi

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}

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#------------------------------------------------------------------------------

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# Get parameters

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if [ $# -eq 0 ]; then

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    print_usage

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    exit 1

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fi

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ACTION=$1

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# Load configuration from sysconfig

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if [ -f $CONFIGFILE ]; then

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    . $CONFIGFILE

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else

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    echo "ERROR: Configuration file \"$CONFIGFILE\" not found!"

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    exit 1

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fi

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case $ACTION in

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    start | restart)

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	echo "Starting EtherCAT master..."

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	# remove modules

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	unload_module 8139too

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	unload_module 8139cp

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	unload_module ec_8139too

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	unload_module ec_master

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	echo "  loading master modules..."

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	if ! modprobe ec_8139too ec_device_index=$DEVICEINDEX; then

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	    echo "ERROR: Failed to load module!"

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	    exit 1

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	fi

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	;;

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    stop)

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	echo "Stopping EtherCAT master..."

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	unload_module ec_8139too

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	unload_module ec_master

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	if ! modprobe 8139too; then

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	    echo "Warning: Failed to restore 8139too module."

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	fi

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	;;

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    *)

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	print_usage

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	exit 1

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esac

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echo "done."

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exit 0

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#------------------------------------------------------------------------------