#!/bin/bash
#
# Start/Stop BCM.USER
#

# 
# Set the directory path to bcm.user, or 
# allow the user to specify the path to bcm.user as the second argument when calling this script 
# (the first argument must be one of: [ start, stop ]
#
if [ -z $2 ]; then

# Look for bcm.user, set the starting directory appropriately, or
# simple exit if not found
#
if [ -f /mnt/bcm.user ]; then
BCM_USER_BIN_DIR=/mnt/
elif [ -f /broadcom/bcm.user ]; then
BCM_USER_BIN_DIR=/broadcom
elif [ -f /opt/bcm56450/bcm.user ]; then
BCM_USER_BIN_DIR=/opt/bcm56450
elif [ -f ./bcm.user ]; then
BCM_USER_BIN_DIR=.
else
echo "cannot find bcm.user, exiting"
exit 1
fi

else # the user may choose the starting directory directly using the second argment 
BCM_USER_BIN_DIR=$2
fi   

case "$1" in
  start)
  	echo -n "Starting bcm.user: "
	cd ${BCM_USER_BIN_DIR}
        lsmod | grep -q linux_user_bde > /dev/null
        if [ "$?" == "0" ]; then
            rmmod linux_user_bde
            echo -n "(-user)"
        fi

        lsmod | grep -q linux_kernel_bde > /dev/null
        if [ "$?" == "0" ]; then
            rmmod linux_kernel_bde
            echo -n "(-kernel)"
        fi

#
# The linux_kernel_bde and linux_user_bde modules are loaded by the bcm.user executable
#

# Create the linux device file, if it does not already exist
        if [ ! -c /dev/linux-user-bde ]; then
            mknod /dev/linux-user-bde c 126 0
        fi
        ./bcm.user
	echo "OK"
	;;
  stop)
	echo -n "Stopping bcm.user: "
	pkill -f bcm.user
	echo "OK"
	;;
  restart|reload)
	;;
  *)
	echo "Usage: $0 {start|stop|restart}"
	exit 1
esac

exit $?