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|
#! /bin/sh
# /etc/rc.serial
# Initializes the serial ports on your system
#
# chkconfig: 2345 50 75
# description: This initializes the settings of the serial port
#
# Distributed with setserial version 2.15
#
# XXXX note: as of 2.15, the autosave feature doesn't work if you are
# using the multiport feature; it doesn't save the multiport configuration
# (for now). Autosave also doesn't work for the hayes devices.
#Will fix later...
#
#
# Note that this has been changed so that if /etc/serial.conf exists,
# this script does not configure the ports. It uses
# /var/lib/setserial/autoserial.conf # instead, which is handled by another
# init.d script. However, the script is still used for module loads and
# unloads, even if serial.conf exists.
#
SETSERIAL=/bin/setserial
modconf=/var/run/setserial.conf
autoconfig=/var/lib/setserial/autoserial.conf
etcconfig=/etc/serial.conf
# If the serial executable has been removed abort the configuration
[ -x ${SETSERIAL} ] || exit 0
#
# make sure that a serial device is loaded...
# insmod -k serial 2>/dev/null
#
#
# Support devfs when it arrives.
#
if /bin/ls /dev/tts 2> /dev/null 1>&2 ; then
ALLDEVS="/dev/tts/*"
else
# No devfs - old naming scheme
ALLDEVS="/dev/ttyS?"
if /bin/ls /dev/ttyS?? 2> /dev/null 1>&2 ; then
ALLDEVS="$ALLDEVS /dev/ttyS??"
fi
fi
#
# Handle System V init conventions...
#
case $1 in
start | restart | force-reload )
action="start";
[ -f ${etcconfig} ] && exit 0
;;
stop)
action="stop";
[ -f ${etcconfig} ] && exit 0
;;
modload)
action="modload";
;;
modsave)
action="modsave";
;;
*)
action="start";
[ -f ${etcconfig} ] && exit 0
esac
if test $action = modload ; then
echo "Restoring persistent state of serial.o module due to module reload... "
if test -f ${modconf} ; then
while read device args
do
case "$device" in
""|\#*)
continue
;;
esac
${SETSERIAL} -z $device $args
done < ${modconf}
else
echo "Warning - no module state found (ok if this is at bootup)"
echo "Using the bootup configuration instead."
action="start";
fi
exit 0
fi
if test $action = stop ; then
if [ -e ${etcconfig} ]; then
#nothing to do
dummy=0;
elif test "`sed 1q $autoconfig`X" = "###AUTOSAVE###X" ; then
echo -n "Saving state of known serial devices... "
grep "^#" $autoconfig > ${autoconfig}.new
${SETSERIAL} -G -g ${ALLDEVS} | grep -v "uart unknown\|pcmcia" >> ${autoconfig}.new
echo -n "backing up $autoconfig"
mv $autoconfig ${autoconfig}.old
mv ${autoconfig}.new $autoconfig
echo " done."
elif test "`sed 1q $autoconfig`X" = "###AUTOSAVE-FULL###X" ; then
echo -n "Saving state (including unknowns) of serial devices... "
grep "^#" $autoconfig > ${autoconfig}.new
${SETSERIAL} -G -g ${ALLDEVS} | grep -v "pcmcia" >> ${autoconfig}.new
echo -n "backing up $autoconfig"
mv $autoconfig ${autoconfig}.old
mv ${autoconfig}.new $autoconfig
echo " done."
elif test "`sed 1q $autoconfig`X" = "###AUTOSAVE-ONCE###X" ; then
echo -n "Saving state of known serial devices... "
echo "###PORT STATE GENERATED USING AUTOSAVE-ONCE###" > ${autoconfig}.new
grep "^#" $autoconfig >> ${autoconfig}.new
${SETSERIAL} -G -g ${ALLDEVS} | grep -v "uart unknown\|pcmcia" >> ${autoconfig}.new
echo -n "backing up $autoconfig"
mv $autoconfig ${autoconfig}.old
mv ${autoconfig}.new $autoconfig
echo " done."
fi
exit 0
fi
#
# Is it Start
#
if test $action = start ; then
echo "Loading the saved-state of the serial devices... "
rm -f ${modconf}
if test -f /etc/serial.conf ; then
readfrom=$etcconfig;
else
readfrom=$autoconfig;
fi
if test -f $readfrom ; then
while read device args
do
case "$device" in
""|\#*)
continue
;;
esac
${SETSERIAL} -z $device $args
${SETSERIAL} -bg $device
done < $readfrom
else
echo "###AUTOSAVE###" > $autoconfig
fi
fi
if test $action = modsave ; then
echo -n "Saving serial.o state to emulate module data persistence... "
rm -f ${modconf}
${SETSERIAL} -G -g ${ALLDEVS} | grep -v "uart unknown\|pcmcia" > ${modconf}
echo "done."
exit 0
fi
|
