damaris-backends/tools/nmr_drivers.sh

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#!/bin/sh
### BEGIN INIT INFO
# Provides: damaris-backends
# Required-Start: $syslog $remote_fs
# Required-Stop: $syslog $remote_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Startup script to load nmr hardware drivers for use with damaris backends
# Description: loads available nmr hardware drivers and grants rights to nmr group
# these drivers will be typically used by damaris backends and accompanying programs
### END INIT INFO
# Script Author: Achim Gaedke <achim.gaedke@physik.tu-darmstadt.de>
# Created: February 28th, 2005, adapted to LSB June 2008
PATH=/sbin:/usr/sbin:/bin:/usr/bin
RETVAL=0
# failure value for nonexisting hardware
HARDWARE_FAIL_RETVAL=0
NMR_MODULE_DIR=/lib/modules/`uname -r`/kernel/damaris
NMR_GROUP="nmr"
# tools
RMMOD=/sbin/rmmod
MODPROBE=/sbin/modprobe
KERNELCONF=/boot/config-`uname -r`
# spectrum related stuff
SPECTRUM_NAME=spc
CONFIG_SMP="`grep 'CONFIG_SMP *=' $KERNELCONF | sed 's/.*=//'`"
if test "x$CONFIG_SMP" = "xy"; then
SPECTRUM_SMP_EXT="_smp";
else
SPECTRUM_SMP_EXT="";
fi
SPECTRUM_DEV=/dev/${SPECTRUM_NAME}0
SPECTRUM_MOD_FILE=$NMR_MODULE_DIR/${SPECTRUM_NAME}${SPECTRUM_SMP_EXT}.ko
# pulseblaster related stuff
PULSEBLASTER_NAME=pulseblaster
PULSEBLASTER_MOD_FILE=$NMR_MODULE_DIR/$PULSEBLASTER_NAME.ko
PULSEBLASTER_DEV=/dev/$PULSEBLASTER_NAME
start() {
SPECTRUM_RETVAL=0
# find out whether spectrum module is running
if egrep "^spc${SPECTRUM_SMP_EXT} " /proc/modules >/dev/null ; then
echo "spectrum module already loaded"
else
# ok, load it
if test -f $SPECTRUM_MOD_FILE; then
if ! $MODPROBE ${SPECTRUM_NAME}${SPECTRUM_SMP_EXT} >/dev/null 2>&1; then
echo "spectrum module failed to load"
SPECTRUM_RETVAL=1
fi
else
echo "spectrum module not found"
SPECTRUM_RETVAL=1
fi
fi
PULSEBLASTER_RETVAL=0
# find out whether pulseblaster module is running
if egrep "^pulseblaster " /proc/modules >/dev/null ; then
echo "pulseblaster module already loaded"
else
# ok, load it
if test -f $PULSEBLASTER_MOD_FILE; then
if ! $MODPROBE $PULSEBLASTER_NAME >/dev/null 2>&1; then
echo "pulseblaster module failed to load"
PULSEBLASTER_RETVAL=1
fi
else
echo "pulseblaster module not found"
PULSEBLASTER_RETVAL=1
fi
fi
# have to wait for a short time, let udev do the work
if [ -x /sbin/udevsettle ]; then
/sbin/udevsettle
fi
if [ -x /sbin/udevadm ]; then
/sbin/udevadm settle
fi
if ! test $PULSEBLASTER_RETVAL -ne 0 -o -c ${PULSEBLASTER_DEV}0 ; then
echo "no pulseblaster board is found, only the debug device at ${PULSEBLASTER_DEV}_debug is available"
fi
# with udev, we should have links and also the rights set correctly
if test $PULSEBLASTER_RETVAL -ne 0 -o $SPECTRUM_RETVAL -ne 0; then
RETVAL=$HARDWARE_FAIL_RETVAL
fi
}
stop() {
if egrep "^spc$SPECTRUM_SMP_EXT " /proc/modules >/dev/null ; then
# test wheter spectrum driver is still used
# !!!! the usage counter of the spc kernel module is not maintained!!!!
if test "`lsof $SPECTRUM_DEV`x" = "x"; then
$MODPROBE -r ${SPECTRUM_NAME}${SPECTRUM_SMP_EXT} || RETVAL=1
else
echo "spectrum driver still in use (use lsof)"
RETVAL=1
fi
fi
if egrep "^${PULSEBLASTER_NAME} " /proc/modules > /dev/null ; then
# test wheter it is still used
$MODPROBE -r ${PULSEBLASTER_NAME} || RETVAL=1
fi
# have to wait for a short time, let udev do the work
if [ -x /sbin/udevsettle ]; then
/sbin/udevsettle
fi
if [ -x /sbin/udevadm ]; then
/sbin/udevadm settle
fi
}
status () {
if egrep "^${SPECTRUM_NAME}$SPECTRUM_SMP_EXT " /proc/modules > /dev/null ; then
echo spectrum module loaded
else
echo spectrum module not loaded
RETVAL=3
fi
if egrep "^${PULSEBLASTER_NAME} " /proc/modules > /dev/null ; then
echo pulseblaster module loaded
else
echo pulseblaster module not loaded
RETVAL=3
fi
}
force-reload() {
stop
start
}
case "$1" in
start)
start
;;
stop)
stop
;;
restart)
stop
start
;;
status)
status
;;
force-reload)
force-reload
;;
*)
printf "Usage: %s {start|stop|restart|force-reload|status}\n" "$0"
RETVAL=1
esac
exit $RETVAL