#!/bin/sh
#
# serial 1.35 2000/06/06 21:02:09 (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

UART_CONF="/etc/bluetooth/uart"
ID=`/sbin/cardctl ident $SOCKET | grep info: | sed 's/^ *product info: *//' | sed 's/"/\\"/g'`
UART_SET=`grep "$ID" $UART_CONF | cut -f2 -d":"`

NO_CHECK="true"

# Get device attributes
get_info $DEVICE

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

# Newer kernels deprecate use of "cua" devices, but we need to
# keep track of them anyway, if the device files are present
NR=`expr $MINOR - 64`
if [ -c /dev/cua1 ] ; then
    CALLOUT=cua$NR
else
    CALLOUT=$DEVICE
fi

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 $LINK
    fi
    fi
    # Workaround for serial driver bug
    IRQ=`setserial /dev/$DEVICE | sed -e 's/.*IRQ: //'`
    setserial /dev/$DEVICE irq 0 ; setserial /dev/$DEVICE irq $IRQ
    if [ "$SERIAL_OPTS" ] ; then
    setserial /dev/$DEVICE $SERIAL_OPTS
    fi
    if [ "$INITTAB" ] ; then
    echo "S$NR:12345:respawn:$INITTAB $DEVICE" >> /etc/inittab
    telinit q
    fi
    
    #Bind Bluetooth CSR UART based CF cards if they are defined in $UART_CONF
    if [ -f $UART_CONF ]; then
       if [ "$UART_SET" != "" ]; then
          modprobe hci_uart
          /usr/sbin/hciattach $UART_SET
      
          ./bluetooth start
      
          hciconfig hci0 up
       else
          # suspend non-bluetooth serial cards
          cardctl suspend $SOCKET
       fi
    fi
    ;;

'check')
    if [ "$UART_SET" != "" ] ; then 
	exit 0 
    fi
    is_true $NO_CHECK && exit 0
    if [ "$INITTAB" ] ; then
    do_fuser -v /dev/$DEVICE /dev/$CALLOUT $LINK | grep -v getty \
        | grep -q /dev/$DEVICE && exit 1
    else
    do_fuser -s /dev/$DEVICE /dev/$CALLOUT $LINK && exit 1
    fi
    ;;

'cksum')
    chk_simple "$NEW_SCHEME,$SOCKET,$INSTANCE" || exit 1
    ;;
    
'stop')
    #Shutdown Bluetooth CSR UART based CF cards if they are defined in $UART_CONF
    if [ -f $UART_CONF ]; then
       if [ "$UART_SET" != "" ]; then
          hciconfig hci0 down
          killall hciattach
          sleep 1
      
    	  modprobe -r hci_uart
      
          ./bluetooth stop
       fi
    fi

    if [ "$INITTAB" ] ; then
    fgrep -v $DEVICE /etc/inittab > /etc/inittab.new
    mv /etc/inittab.new /etc/inittab
    telinit q
    fi
    do_fuser -k /dev/$DEVICE /dev/$CALLOUT $LINK > /dev/null
    rm -f $LINK ; mv -f $LINK.O $LINK 2>/dev/null
    ;;

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

'resume')
    if [ "$SERIAL_OPTS" ] ; then
    setserial /dev/$DEVICE $SERIAL_OPTS
    fi
    do_fuser -k -CONT /dev/$DEVICE /dev/$CALLOUT $LINK > /dev/null
    #cardctl suspend $SOCKET
    ;;

*)
    echo "Unknown action: $ACTION."
    usage
    ;;

esac

exit 0
