#! /bin/sh
#----------------------------------------------------------------------------
# /etc/init.d/usb - load or unload usb drivers
#
# Creation   :  2004-03-12 fh
# Last Update:  $Id$
#
# Copyright (c) 2001-2011 the eisfair team, team(at)eisfair(dot)org
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#----------------------------------------------------------------------------

# read functions
. /etc/init.d/functions

# include config file
. /etc/config.d/usb

# dont unload  module if usb-drive given
if [ -f /boot/usb-drive ]
then
    usb_drive=true
fi

# ---------------------------------------------------------------------------
# usage
# ---------------------------------------------------------------------------
usage ()
{
cat <<EOF

 Usage:
 ${0}
                -q, --quiet      suppress all normal output
                [start]
                [stop]
                [restart]
                [forcestart]

EOF
}
# ---------------------------------------------------------------------------
# start usb
# ---------------------------------------------------------------------------
usb_start ()
{
    if "${start_force:-false}"
    then
        START_USB='yes'
    fi

    if [ "${START_USB}" = "yes" ]
    then
        boot_mesg " * Starting usb ..."
        /sbin/modprobe usbcore 2>/dev/null
        /sbin/modprobe ${USB_LOWLEVEL} 2>/dev/null

        if [ "${USB_2}" = "yes" ]
        then
            /sbin/modprobe ehci-hcd 2>/dev/null
        fi

        if [ "${USB_PRINTER}" = "yes" ]
        then
            /sbin/modprobe printer 2>/dev/null
        fi

        if [ "${USB_STORAGE}" = "yes" ]
        then
            /sbin/modprobe usb-storage 2>/dev/null
        fi

        if [ "${USB_SERIAL}" = "yes" ]
        then
            /sbin/modprobe usbserial 2>/dev/null
            /sbin/modprobe "${USB_SERIAL_DRIVER}" "${USB_SERIAL_OPTIONS}" 2>/dev/null
        fi

        if [ -z "`mount -t usbfs`" ]
        then
            mount -t usbfs usbfs /proc/bus/usb
        fi

        evaluate_retval
    fi
}
# ---------------------------------------------------------------------------
# stop usb
# ---------------------------------------------------------------------------
usb_stop ()
{
    boot_mesg " * Stopping usb ..."

    if mount | grep usb > /dev/null
    then
        umount /proc/bus/usb
    fi

    if [ "${USB_PRINTER}" = "yes" ]
    then
        /sbin/rmmod printer 2>/dev/null
    fi

# dont unload usb2 driver
#    if [ "${USB_2}" = "yes" ]
#    then
#        if ${usb_drive:-false}
#        then
#            /sbin/rmmod ehci-hcd 2>/dev/null
#        fi
#    fi

    if [ "${USB_STORAGE}" = "yes" ]
    then
        if ${usb_drive:-false}
        then
            /sbin/rmmod usb-storage 2>/dev/null
        fi
    fi

    if [ "${USB_SERIAL}" = "yes" ]
    then
        /sbin/rmmod "${USB_SERIAL_DRIVER}" 2>/dev/null
        /sbin/rmmod usbserial 2>/dev/null
    fi

    evaluate_retval
}
# ---------------------------------------------------------------------------
# start usb by hand
# ---------------------------------------------------------------------------
usb_start_by_hand ()
{
    usb_start

    if [ "${START_USB}" = "yes" ]
    then

        if [ ${USB_DEP_SERVICE_N} -gt 0 ]
        then
            boot_mesg " * Looking for dependent services ..."

            if [ -s /etc/usbdepservices ]
            then
                for service in `cat /etc/usbdepservices`
                do
                    boot_mesg " * Found "${service}", starting."
                    /etc/init.d/${service} start
                done
            else
                evaluate_retval
            fi

        fi
    fi
}
# ---------------------------------------------------------------------------
# usb stop by hand
# ---------------------------------------------------------------------------
usb_stop_by_hand ()
{
    if [ "${START_USB}" = "yes" ]
    then

        if [ ${USB_DEP_SERVICE_N} -gt 0 ]
        then
            boot_mesg " * Looking for dependent services ..."

            if [ -s /etc/usbdepservices ]
            then
                for service in `cat /etc/usbdepservices`
                do
                    boot_mesg " * Found "${service}", stopping."
                    /etc/init.d/${service} stop
                done
            else
                evaluate_retval
            fi
        fi
    fi
    usb_stop
}
# ---------------------------------------------------------------------------
# restart usb
# ---------------------------------------------------------------------------
usb_restart()
{
    usb_stop_by_hand
    sleep 2
    usb_start_by_hand
}
# ---------------------------------------------------------------------------
# main usb
# ---------------------------------------------------------------------------
while [ "${#}" -gt 0 ]
do
    case "${1}" in
        -q|--quiet)
            _quiet=true
            shift
        ;;
        *)
            _action="${1}"
            shift
        ;;
    esac
done

case "${_action}" in
    start)
        usb_start
    ;;
    stop)
        usb_stop
    ;;
    restart)
        usb_restart
    ;;
    forcestart)
        start_force=true
        usb_start
    ;;
    start_by_hand)
        usb_start_by_hand
    ;;
    stop_by_hand)
        usb_stop_by_hand
    ;;
    *)
        usage
        exit 1
    ;;
esac

exit 0
# ---------------------------------------------------------------------------
# end
# ---------------------------------------------------------------------------