EtherCAT functionality of igb driver.
#!/bin/sh
#------------------------------------------------------------------------------
#
# Start script for EtherCAT to use with systemd
#
# $Id$
#
# Copyright (C) 2006-2012 Florian Pose, Ingenieurgemeinschaft IgH
#
# This file is part of the IgH EtherCAT Master.
#
# The IgH EtherCAT Master is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License version 2, as
# published by the Free Software Foundation.
#
# The IgH EtherCAT Master is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with the IgH EtherCAT Master; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
# ---
#
# The license mentioned above concerns the source code only. Using the
# EtherCAT technology and brand is only permitted in compliance with the
# industrial property and similar rights of Beckhoff Automation GmbH.
#
# vim: expandtab sw=4 tw=78
#
#------------------------------------------------------------------------------
LSMOD=/sbin/lsmod
MODPROBE=/sbin/modprobe
RMMOD=/sbin/rmmod
MODINFO=/sbin/modinfo
ETHERCAT=@prefix@/bin/ethercat
#------------------------------------------------------------------------------
ETHERCAT_CONFIG=/etc/ethercat.conf
if [ ! -r ${ETHERCAT_CONFIG} ]; then
echo ${ETHERCAT_CONFIG} not existing;
exit 6
fi
. ${ETHERCAT_CONFIG}
#------------------------------------------------------------------------------
parse_mac_address() {
if [ -z "${1}" ]; then
MAC=""
elif echo ${1} | grep -qE '^([0-9a-fA-F]{2}:){5}[0-9a-fA-F]{2}$'; then
MAC=${1}
else
echo Invalid MAC address \"${1}\" in ${ETHERCAT_CONFIG}
exit 1
fi
}
#------------------------------------------------------------------------------
case "${1}" in
start)
# construct DEVICES and BACKUPS from configuration variables
DEVICES=""
BACKUPS=""
MASTER_INDEX=0
while true; do
DEVICE=$(eval echo "\${MASTER${MASTER_INDEX}_DEVICE}")
BACKUP=$(eval echo "\${MASTER${MASTER_INDEX}_BACKUP}")
if [ -z "${DEVICE}" ]; then break; fi
if [ ${MASTER_INDEX} -gt 0 ]; then
DEVICES=${DEVICES},
BACKUPS=${BACKUPS},
fi
parse_mac_address ${DEVICE}
DEVICES=${DEVICES}${MAC}
parse_mac_address ${BACKUP}
BACKUPS=${BACKUPS}${MAC}
MASTER_INDEX=$(expr ${MASTER_INDEX} + 1)
done
# load master module
if ! ${MODPROBE} ${MODPROBE_FLAGS} ec_master \
main_devices=${DEVICES} backup_devices=${BACKUPS}; then
exit 1
fi
LOADED_MODULES=ec_master
# check for modules to replace
for MODULE in ${DEVICE_MODULES}; do
ECMODULE=ec_${MODULE}
if ! ${MODINFO} ${ECMODULE} > /dev/null; then
continue # ec_* module not found
fi
if [ ${MODULE} != "generic" -a ${MODULE} != "ccat" ]; then
# try to unload standard module
if ${LSMOD} | grep "^${MODULE} " > /dev/null; then
if ! ${RMMOD} ${MODULE}; then
${RMMOD} ${LOADED_MODULES}
exit 1
fi
fi
fi
if ! ${MODPROBE} ${MODPROBE_FLAGS} ${ECMODULE}; then
if [ ${MODULE} != "generic" -a ${MODULE} != "ccat" ]; then
${MODPROBE} ${MODPROBE_FLAGS} ${MODULE} # try to restore
fi
${RMMOD} ${LOADED_MODULES}
exit 1
fi
LOADED_MODULES="${ECMODULE} ${LOADED_MODULES}"
done
exit 0
;;
#------------------------------------------------------------------------------
stop)
# unload EtherCAT device modules
for MODULE in ${DEVICE_MODULES} master; do
ECMODULE=ec_${MODULE}
if ! ${LSMOD} | grep -q "^${ECMODULE} "; then
continue # ec_* module not loaded
fi
if ! ${RMMOD} ${ECMODULE}; then
exit 1
fi;
done
sleep 1
# load standard modules again
for MODULE in ${DEVICE_MODULES}; do
if [ ${MODULE} == "generic" -o ${MODULE} == "ccat" ]; then
continue
fi
${MODPROBE} ${MODPROBE_FLAGS} ${MODULE}
done
exit 0
;;
#------------------------------------------------------------------------------
restart)
$0 stop || exit 1
sleep 1
$0 start
;;
#------------------------------------------------------------------------------
status)
echo "Checking for EtherCAT master @VERSION@ "
# count masters in configuration file
MASTER_COUNT=0
while true; do
DEVICE=$(eval echo "\${MASTER${MASTER_COUNT}_DEVICE}")
if [ -z "${DEVICE}" ]; then break; fi
MASTER_COUNT=$(expr ${MASTER_COUNT} + 1)
done
RESULT=0
for i in `seq 0 $(expr ${MASTER_COUNT} - 1)`; do
echo -n "Master${i} "
# Check if the master is in idle or operation phase
${ETHERCAT} master --master ${i} 2>/dev/null | \
grep -qE 'Phase:[[:space:]]*Idle|Phase:[[:space:]]*Operation'
EXITCODE=$?
if [ ${EXITCODE} -eq 0 ]; then
echo " running"
else
echo " dead"
RESULT=1
fi
done
exit ${RESULT}
;;
#------------------------------------------------------------------------------
*)
echo "USAGE: $0 {start|stop|restart|status}"
exit 1
;;
esac
#------------------------------------------------------------------------------