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#!/bin/bash

#  helper script: create ROM images for a given system, with GRUB
#
#	Copyright (C) 2014, 2015 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/>.
#

# This script assumes that the working directory is the root
# of libreboot_src or git

[ "x${DEBUG+set}" = 'xset' ] && set -v
set -u -e

if (( $# != 1 )); then
	echo "Usage: ./buildrom-withgrub boardname"
	echo "Example: ./buildrom-withgrub x60"
	echo "You need to specify exactly 1 argument"
	exit 1
fi

cd coreboot

# Build ROM images with text-mode and corebootfb modes.
# ---------------------------------------------------------------------------------------------------------------

if [ "$1" = "qemu_i440fx_piix4" ] || [ "$1" = "qemu_q35_ich9" ]
then
	# assume that the default config enable framebuffer mode, duplicate and patch for text-mode
	# necessary, otherwise it will ask you to enter the Y/X resolution of the framebuffer at build time
	cp ../resources/libreboot/config/"$1"/config config_vesafb
	sed 's/CONFIG_FRAMEBUFFER_KEEP_VESA_MODE=y/# CONFIG_FRAMEBUFFER_KEEP_VESA_MODE is not set/' < config_vesafb > config_txtmode
else
	# assume that the default config enables text-mode, duplicate and patch for framebuffer mode
	cp ../resources/libreboot/config/"$1"/config config_txtmode
	sed 's/# CONFIG_FRAMEBUFFER_KEEP_VESA_MODE is not set/CONFIG_FRAMEBUFFER_KEEP_VESA_MODE=y/' < config_txtmode > config_vesafb
fi

for romtype in txtmode vesafb
do
	if [ "$1" = "x200_8mb" ] || [ "$1" = "x200_4mb" ] || [ "$1" = "r400_8mb" ] || [ "$1" = "r400_4mb" ]
		then
			if [ "$romtype" = "txtmode" ]
				then
					echo "Text mode graphics is currently broken on X200 and R400. Only framebuffer mode works."
					continue
			fi
	fi

	# Build coreboot ROM image
	make clean
	mv config_"$romtype" .config
	mv grub_"$romtype".elf grub.elf
	make
	mv grub.elf grub_"$romtype".elf
	mv build/coreboot.rom "$1"_"$romtype".rom
	# .config no longer needed
	rm -f .config
	
	# Add the background image
	if [ "$romtype" = "vesafb" ]
	then
		if [ "$1" = "macbook21" ] || [ "$1" = "x200_4mb" ] || [ "$1" = "x200_8mb" ] || [ "$1" = "r400_4mb" ] || [ "$1" = "r400_8mb" ]
		then
			./util/cbfstool/cbfstool "$1"_"$romtype".rom add -f ../resources/grub/background/gnulove.jpg -n background.jpg -t raw
		else
			./util/cbfstool/cbfstool "$1"_"$romtype".rom add -f ../resources/grub/background/background.jpg -n background.jpg -t raw
		fi
	fi

	# Add the correct GRUB configuration file for this image.
	for keymap in $(ls ../resources/utilities/grub-assemble/keymap/original)
	do
		# copy the images based on the keymap
		cp "$1"_"$romtype".rom "$1"_"$keymap"_"$romtype".rom

		# Insert grub config into the image
		./util/cbfstool/cbfstool "$1"_"$keymap"_"$romtype".rom add -f grub_"$keymap"_"$romtype".cfg -n grub.cfg -t raw
		# Insert grub test config into the image (for the user to test modifications to before modifying the main one)
		./util/cbfstool/cbfstool "$1"_"$keymap"_"$romtype".rom add -f grub_"$keymap"_"$romtype"_test.cfg -n grubtest.cfg -t raw
	done

	# This config-less ROM is no longer needed
	rm -rf "$1"_"$romtype".rom
done

# Now we clean up and prepare the bin directory containing all the images
# ----------------------------------------------------------------------------------------------------------------------------

# prepare directory for new ROM images
rm -rf "$1"
mkdir "$1"
# move the ROM's into the newly created directory
mv "$1"*rom "$1"

# delete the old ROM's from ../bin
rm -rf ../bin/"$1"
# now put the new ROM's in ./bin
mv "$1" ../bin

# go back to main source directory
cd ../