#!/bin/bash

#  addseabios script: add SeaBIOS to the ROM images.
#  This also adds SeaVGABIOS, SeaBIOS's free/libre video bios "wrapper" for coreboot native graphics
#
#	Copyright (C) 2014 Francis Rowe <info@gluglug.org.uk>
#
#    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 3 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

set -u -e -v

echo "Adding SeaBIOS and SeaVGABIOS to the ROM's"

# Because the DEBLOB script isn't included in the binary archives.
# This is how we know.
if [ -f "DEBLOB" ]; then
	echo "Do not run this in meta/src directory. Do it in binary archive, either with libreboot-supplied ROM images or your own binary archive created with 'build-release'."
	exit 1
fi

if [ $(uname -i) = "i686" ] || [ $(uname -i) = "i686" ]
	then
		echo "You are on an i686 host"
		if [ ! -f "cbfstool/i686/cbfstool" ]; then
			echo "cbfstool binary not found. You will need to build it from source and put it in cbfstool/i686/"
			exit 1
		fi
		$cbfstool = "../cbfstool/i686/cbfstool"
elif [ $(uname -i) = "x86_64" ] || [ $(uname -i) = "x86_64" ]
	then
		echo "You are on an x86_64 host"
		if [ ! -f "cbfstool/x86_64/cbfstool" ]; then
			echo "cbfstool binary not found. You will need to build it from source and put it in cbfstool/x86_64/"
			exit 1
		fi
		$cbfstool = "../cbfstool/x86_64/cbfstool"
else
	echo "You need to run this script on an i686 or x86_64 host"
	exit 1
fi

# Add SeaBIOS and SeaVGABIOS to *all* ROM's
cd bin/
for rom in $(find -type f)
do
	# Add them
	$cbfstool $rom add -f ../vgabios.bin -n vgaroms/vgabios.bin -t raw
	$cbfstool $rom add -f ../bios.bin.elf -n bios.bin.elf -t raw

	# Modify the GRUB configuration
	for config in grub.cfg grubtest.cfg
	do
		# Extract (dump) the config
		$cbfstool $rom extract -n $config -f $config

		# Delete it from the ROM
		$cbfstool $rom remove -n $config

		# Add the menuentry for loading SeaBIOS
		cat seabios.cfg >> $config

		# Re-add the newly modified GRUB configuration to the ROM
		$cbfstool $rom add -f $config -n $config -t raw

		# The GRUB configuration is no longer needed
		rm -rf $config
	done
done
cd ../

echo "DONE! All of the ROM's under bin/ have been modified to include SeaBIOS/SeaVGABIOS and include a GRUB menuentry for it."