#!/bin/sh
#
# serial 1.31 1999/10/25 18:16:20 (David Hinds)
#
# Initialize or shutdown a PCMCIA serial device
#
# The first argument should be either 'start' or 'stop'.  The second
# argument is the base name for the device.
#
# The script passes an extended device address to 'serial.opts' in the 
# ADDRESS variable, to retrieve device-specific configuration options.
# The address format is "scheme,socket,instance" where "scheme" is the
# PCMCIA configuration scheme, "socket" is the socket number, and
# "instance" is used to number multiple ports on a single card.  
#

if [ -r ./shared ] ; then . ./shared ; else . /etc/pcmcia/shared ; fi

# Get device attributes
get_info $DEVICE

# Load site-specific settings
ADDRESS="$SCHEME,$SOCKET,$INSTANCE"
. $0.opts

CALLOUT=$DEVICE

case "$ACTION" in

'start')
    if [ ! -c /dev/$DEVICE ] ; then
	cd /dev ; ./MAKEDEV $DEVICE
    fi
    if [ "$LINK" ] ; then
	mv -f $LINK $LINK.O 2>/dev/null
	if uname -r | grep -q '^2\.[2345]' ; then
	    ln -s /dev/$DEVICE $LINK
	else
	    ln -s /dev/$CALLOUT $LINK
	fi
    fi
    if [ "$SERIAL_OPTS" ] ; then
	setserial /dev/$DEVICE irq 0
	setserial /dev/$DEVICE $SERIAL_OPTS
    fi
    if [ "$INITTAB" ] ; then
	echo "S$NR:12345:respawn:$INITTAB $DEVICE" >> /etc/inittab
	telinit q
    fi
    ;;

'check')
    fuser -s /dev/$DEVICE /dev/$CALLOUT $LINK && exit 1
    ;;

'cksum')
    chk_simple "$3,$SOCKET,$INSTANCE" || exit 1
    ;;
    
'stop')
    if [ "$INITTAB" ] ; then
	fgrep -v $DEVICE /etc/inittab > /etc/inittab.new
	mv /etc/inittab.new /etc/inittab
	telinit q
    fi
    fuser -k /dev/$DEVICE /dev/$CALLOUT $LINK > /dev/null
    rm -f $LINK ; mv -f $LINK.O $LINK 2>/dev/null
    ;;

'suspend')
    fuser -k -STOP /dev/$DEVICE /dev/$CALLOUT > /dev/null
    ;;

'resume')
    if [ "$SERIAL_OPTS" ] ; then
	setserial /dev/$DEVICE $SERIAL_OPTS
    fi
    fuser -k -CONT /dev/$DEVICE /dev/$CALLOUT $LINK > /dev/null
    ;;

*)
    usage
    ;;

esac

exit 0
