fp@169: #!/bin/sh
fp@169: 
fp@169: #------------------------------------------------------------------------------
fp@169: #
fp@247: #  Init script for EtherCAT
fp@169: #
fp@169: #  $Id$
fp@169: #
fp@197: #  Copyright (C) 2006  Florian Pose, Ingenieurgemeinschaft IgH
fp@197: #
fp@197: #  This file is part of the IgH EtherCAT Master.
fp@197: #
fp@197: #  The IgH EtherCAT Master is free software; you can redistribute it
fp@197: #  and/or modify it under the terms of the GNU General Public License
fp@246: #  as published by the Free Software Foundation; either version 2 of the
fp@246: #  License, or (at your option) any later version.
fp@197: #
fp@197: #  The IgH EtherCAT Master is distributed in the hope that it will be
fp@197: #  useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
fp@197: #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
fp@197: #  GNU General Public License for more details.
fp@197: #
fp@197: #  You should have received a copy of the GNU General Public License
fp@197: #  along with the IgH EtherCAT Master; if not, write to the Free Software
fp@197: #  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
fp@197: #
fp@246: #  The right to use EtherCAT Technology is granted and comes free of
fp@246: #  charge under condition of compatibility of product made by
fp@246: #  Licensee. People intending to distribute/sell products based on the
fp@246: #  code, have to sign an agreement to guarantee that products using
fp@246: #  software based on IgH EtherCAT master stay compatible with the actual
fp@246: #  EtherCAT specification (which are released themselves as an open
fp@246: #  standard) as the (only) precondition to have the right to use EtherCAT
fp@246: #  Technology, IP and trade marks.
fp@246: #
fp@169: #------------------------------------------------------------------------------
fp@169: 
fp@243: ### BEGIN INIT INFO
fp@248: # Provides:          ethercat
fp@245: # Required-Start:    $local_fs $syslog $network
fp@245: # Should-Start:      $time
fp@245: # Required-Stop:     $local_fs $syslog $network
fp@245: # Should-Stop:       $time
fp@243: # Default-Start:     3 5
fp@243: # Default-Stop:      0 1 2 6
fp@247: # Short-Description: IgH EtherCAT master modules
fp@243: # Description:
fp@243: ### END INIT INFO
fp@169: 
fp@169: #------------------------------------------------------------------------------
fp@169: 
fp@243: ETHERCAT_CONFIG=/etc/sysconfig/ethercat
fp@169: 
fp@243: test -r $ETHERCAT_CONFIG || { echo "$ETHERCAT_CONFIG not existing";
fp@243: 	if [ "$1" = "stop" ]; then exit 0;
fp@243: 	else exit 6; fi; }
fp@243: 
fp@243: . $ETHERCAT_CONFIG
fp@169: 
fp@169: #------------------------------------------------------------------------------
fp@169: 
fp@289: #
fp@289: #  Function for setting up the EoE bridge
fp@289: #
fp@289: build_eoe_bridge() {
fp@289:         if [ -z "$EOE_BRIDGE" ]; then return; fi
fp@289: 
fp@289: 	EOE_INTERFACES=`/sbin/ifconfig -a | grep -o -E "^eoe[0-9]+ "`
fp@289: 
fp@289: 	# add bridge, if it does not already exist
fp@289: 	if ! /sbin/brctl show | grep -E -q "^$EOE_BRIDGE"; then
fp@289: 	        if ! /sbin/brctl addbr $EOE_BRIDGE; then
fp@289: 		        /bin/false
fp@289: 			rc_status -v
fp@289: 			rc_exit
fp@289: 		fi
fp@289: 	fi
fp@289: 
fp@289:        	# check if specified interfaces are bridged
fp@289: 	for interf in $EOE_INTERFACES $EOE_EXTRA_INTERFACES; do
fp@289: 	        # interface is already part of the bridge 
fp@289: 	        if /sbin/brctl show $EOE_BRIDGE | grep -E -q $interf
fp@289: 		        then continue
fp@289: 		fi
fp@289: 		# clear IP address and open interface
fp@289: 		if ! /sbin/ifconfig $interf 0.0.0.0 up; then
fp@289: 		        /bin/false
fp@289: 			rc_status -v
fp@289: 			rc_exit
fp@289: 		fi
fp@289: 		# add interface to the bridge
fp@289: 		if ! /sbin/brctl addif $EOE_BRIDGE $interf; then
fp@289: 		        /bin/false
fp@289: 			rc_status -v
fp@289: 			rc_exit
fp@289: 		fi
fp@289: 	done
fp@289: 
fp@289: 	# configure IP on bridge
fp@289: 	if [ -n "$EOE_IP_ADDRESS" -a -n "$EOE_IP_NETMASK" ]; then
fp@289: 	        if ! /sbin/ifconfig $EOE_BRIDGE $EOE_IP_ADDRESS \
fp@289: 		        netmask $EOE_IP_NETMASK; then
fp@289: 		        /bin/false
fp@289: 			rc_status -v
fp@289: 			rc_exit
fp@289: 		fi
fp@289: 	fi
fp@289: 
fp@289: 	# open bridge
fp@289: 	if ! /sbin/ifconfig $EOE_BRIDGE up; then
fp@289: 	        /bin/false
fp@289: 		rc_status -v
fp@289: 		rc_exit
fp@289: 	fi
fp@289: 
fp@289: 	# install new default gateway
fp@289: 	if [ -n "$EOE_GATEWAY" ]; then
fp@289: 	        while /sbin/route -n | grep -E -q "^0.0.0.0"; do
fp@289: 		        if ! /sbin/route del default; then
fp@289: 			        echo "Failed to remove route!" 1>&2
fp@289: 				/bin/false
fp@289: 				rc_status -v
fp@289: 				rc_exit
fp@289: 			fi
fp@289: 		done
fp@289: 		if ! /sbin/route add default gw $EOE_GATEWAY; then
fp@289: 		        /bin/false
fp@289: 			rc_status -v
fp@289: 			rc_exit
fp@289: 		fi
fp@289: 	fi
fp@289: }
fp@289: 
fp@289: #------------------------------------------------------------------------------
fp@289: 
fp@243: . /etc/rc.status
fp@243: rc_reset
fp@169: 
fp@243: case "$1" in
fp@243:     start)
fp@250: 	echo -n "Starting EtherCAT master "
fp@250: 
fp@283: 	if [ -z "$DEVICE_INDEX" ]; then
fp@250: 	    echo "ERROR: DEVICE_INDEX not set!"
fp@250: 	    /bin/false
fp@250: 	    rc_status -v
fp@250: 	    rc_exit
fp@250: 	fi
fp@169: 
fp@283: 	if [ -z "$EOE_DEVICES" ]; then
fp@251: 	    EOE_DEVICES=0
fp@251: 	fi
fp@251: 
fp@289: 	# unload conflicting modules at first
fp@243: 	for mod in 8139too 8139cp; do
fp@243: 		if lsmod | grep "^$mod " > /dev/null; then
fp@243: 			if ! rmmod $mod; then
fp@243: 				/bin/false
fp@243: 				rc_status -v
fp@243: 				rc_exit
fp@250: 			fi
fp@250: 		fi
fp@243: 	done
fp@174: 
fp@289: 	# load master module
fp@251: 	if ! modprobe ec_master ec_eoe_devices=$EOE_DEVICES; then
fp@251: 	    /bin/false
fp@251: 	    rc_status -v
fp@251: 	    rc_exit
fp@251: 	fi
fp@251: 
fp@289: 	# load device module
fp@251: 	if ! modprobe ec_8139too ec_device_index=$DEVICE_INDEX; then
fp@251: 	    /bin/false
fp@251: 	    rc_status -v
fp@251: 	    rc_exit
fp@251: 	fi
fp@174: 
fp@289: 	# build EoE bridge
fp@289: 	build_eoe_bridge
fp@283: 
fp@243: 	rc_status -v
fp@169: 	;;
fp@174: 
fp@169:     stop)
fp@250: 	echo -n "Shutting down EtherCAT master "
fp@243: 
fp@289: 	# unload modules
fp@243: 	for mod in ec_8139too ec_master; do
fp@243: 		if lsmod | grep "^$mod " > /dev/null; then
fp@243: 			if ! rmmod $mod; then
fp@243: 				/bin/false
fp@243: 				rc_status -v
fp@243: 				rc_exit
fp@243: 			fi;
fp@243: 		fi;
fp@243: 	done
fp@243: 
fp@289: 	# reload previous modules
fp@169: 	if ! modprobe 8139too; then
fp@169: 	    echo "Warning: Failed to restore 8139too module."
fp@169: 	fi
fp@243: 
fp@243: 	rc_status -v
fp@169: 	;;
fp@174: 
fp@243:     restart)
fp@289: 	$0 stop || exit 1
fp@243: 	$0 start
fp@243: 
fp@243: 	rc_status
fp@243: 	;;
fp@244: 
fp@244:     status)
fp@250: 	echo -n "Checking for EtherCAT "
fp@244: 
fp@244: 	lsmod | grep "^ec_master " > /dev/null
fp@244: 	master_running=$?
fp@244: 	lsmod | grep "^ec_8139too " > /dev/null
fp@244: 	device_running=$?
fp@289: 
fp@289: 	# master module and device module loaded?
fp@244: 	test $master_running -eq 0 -a $device_running -eq 0
fp@244: 
fp@244: 	rc_status -v
fp@244: 	;;
fp@289: 
fp@289:     bridge)
fp@289: 	echo -n "Building EoE bridge "
fp@289: 
fp@289: 	build_eoe_bridge
fp@289: 
fp@289: 	rc_status -v
fp@289: 	;;
fp@289: 
fp@289:     *)
fp@289: 	echo "USAGE: $0 {start|stop|restart|status|bridge}"
fp@289: 	;;
fp@169: esac
fp@243: rc_exit
fp@169: 
fp@169: #------------------------------------------------------------------------------