#!/bin/bash
#
# rc.conexantpciadsl
#

eval $(/usr/local/bin/readhash CONFIG_ROOT/ppp/settings)

# Debugging. Comment it out to stop logging
DEBUG="yes"
msg() {
	if [ "z$DEBUG" != "z" ] ; then
		/usr/bin/logger "CnxPCIADSL: $*"
	fi
	echo "$*"
}

function wait_for_showtime() {
  msg "waiting for sync"
  count=0
  while [ ! $count = 45 ]; do
	/bin/sleep 2
	if ( /usr/sbin/cnxadslstatus | /bin/grep -q -F 'Showtime.' ); then
		msg "sync done"
		return 0
	fi
	((++count))
  done
  return 1
}

# See how we were called.
case "$1" in
  start)
	msg "starting"
	# if the driver is not already loaded then
#	if [ ! -f /var/lock/subsys/cnxadsllock ]; then
	if ( ! /sbin/lsmod | /bin/grep -q CnxADSL ); then
		/sbin/modprobe atm
		if ( ! /bin/cat /proc/pci | /bin/grep -q '14f1' ); then
			msg "no conexant modem"
			exit 1
		fi
		if ( /bin/cat /proc/pci | /bin/grep -q '14f1:1611' ); then
				# Tigris model
				/sbin/insmod CnxADSL 		\
				CnxtDslArmDeviceId=0x1610 	\
				CnxtDslAdslDeviceId=0x1611 	\
				CnxtDslPhysicalDriverType=1
				/bin/ln -f -s /etc/Conexant/CnxTgF.hex CONFIG_ROOT/cnx_pci/firmware.hex
		else
			if ( /bin/cat /proc/pci | /bin/grep -q '14f1:1622' ); then
				# Yukon model
				/sbin/insmod CnxADSL 			\
					CnxtDslVendorId=0x14F1 		\
					CnxtDslArmDeviceId=0x1620 	\
					CnxtDslAdslDeviceId=0x1622 	\
					CnxtDslPhysicalDriverType=2
				/bin/ln -f -s /etc/Conexant/CnxYkF.hex CONFIG_ROOT/cnx_pci/firmware.hex
			else
				msg "don't know this model"
				exit 1
			fi
		fi
	fi

	# Initialize the firmware and start training
	/bin/ln -f -s /etc/Conexant/cnxadsl.conf CONFIG_ROOT/cnx_pci/cnxadsl.conf
	/etc/Conexant/cnxadslload CONFIG_ROOT/cnx_pci
	RETVAL=$?
	if [ $RETVAL -eq 0 ] ; then
		# Create the tty device
		number=`awk '/ttyCX/ { print $1 }' /proc/devices`
		number=${number:?"Could not find device"}
		echo $number
		/bin/rm -f /dev/ttyCX
		/bin/mknod --mode=660 /dev/ttyCX c $number 0

		# create a file for the init scripts to know
		# to shut the driver down
	else
		msg "already loaded"
	fi
	wait_for_showtime
	exit $?
	;;
stop)
	msg "stop"
	killall cnxadslload 2>/dev/null
	#unload the module
	/sbin/rmmod CnxADSL 2>/dev/null
	/sbin/modprobe -r atm
	# get rid of the tty device
	/bin/rm -f /dev/ttyCX
	;;
cleanup)
	msg "cleanup"
	;;
  *)
	echo "Usage: $0 {start|stop|cleanup}"
	exit 1
	;;
esac

exit 0