#!/bin/bash

# Copyright (c) 2010, Sebastian Siebert (mail@sebastian-siebert.de)
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#     * Redistributions of source code must retain the above copyright
#       notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above copyright
#       notice, this list of conditions and the following disclaimer in the
#       documentation and/or other materials provided with the distribution.
# 
# THIS SOFTWARE IS PROVIDED BY SEBASTIAN SIEBERT ''AS IS'' AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL SEBASTIAN SIEBERT BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# Changelog:

# Version 1.0 - inital development

NEED_REBUILD_FGLRX="no"
FGLRX_KERNEL_MODULE="/lib/modules/`uname -r`/extra/fglrx.ko"

if [ ! -f "${FGLRX_KERNEL_MODULE}" ]; then
    NEED_REBUILD_FGLRX="yes"
fi

echo "Check for rebuild fglrx kernel module if necessary ..."
if [ "${NEED_REBUILD_FGLRX}" = "yes" ]; then
    echo "   ${FGLRX_KERNEL_MODULE} does not exist. I build it NOW. Please wait ..."
    /usr/bin/fglrx-kernel-build.sh >/var/log/fglrx-build.log 2>&1
    NEED_REBUILD_FGLRX="no"
else
    echo "   The fglrx kernel module was already builded."
fi

echo "Checking for running fglrx kernel module ..."
if [ -z "`lsmod | grep fglrx`" ]; then
    echo "   fglrx kernel module is not loaded! Try it to modeprobe now ..."
    modprobe --first-time fglrx
    if [ -n "`lsmod | grep fglrx`" ]; then
        echo "   fglrx kernel module was successfully loaded."
    else
        echo "   FATAL: fglrx kernel module could not loaded!"
    fi
else
    echo "   fglrx kernel module is loaded."
fi
