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#!/bin/bash

#
#  helper script: build ROM images with GRUB and put them in ./bin/
#
#	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

printf "Building ROM images with the GRUB payload\n"

if [ ! -d "bin" ]
then
	mkdir bin/
fi

boards="unknown"
if [ $# -gt 0 ]; then
	# build only the ROM images that were requested
	boards="$@"
else
	# build all ROM images
	boards="$(ls resources/libreboot/config/)"
fi


# Put GRUB payloads and config files
# in the coreboot directory, ready for next step
cd coreboot/
for romtype in txtmode vesafb
do
	cd ../resources/utilities/grub-assemble
	./gen.sh "$romtype"
	rm -f ../../../coreboot/grub_"$romtype".elf
	mv grub_"$romtype".elf ../../../coreboot/
	cd ../../../coreboot

	# GRUB configuration files
	for keymap in $(ls ../resources/utilities/grub-assemble/keymap/original)
	do
		cat ../resources/grub/config/extra/common.cfg > grub_"$keymap"_"$romtype".cfg
		cat ../resources/grub/config/extra/"$romtype".cfg >> grub_"$keymap"_"$romtype".cfg
		echo "keymap $keymap" >> grub_"$keymap"_"$romtype".cfg
		cat ../resources/grub/config/menuentries/common.cfg >> grub_"$keymap"_"$romtype".cfg
		cat ../resources/grub/config/menuentries/"$romtype".cfg >> grub_"$keymap"_"$romtype".cfg
		# grubtest.cfg should be able to switch back to grub.cfg
		sed 's/grubtest.cfg/grub.cfg/' < grub_"$keymap"_"$romtype".cfg > grub_"$keymap"_"$romtype"_test.cfg
	done
done
cd ../

# Build ROM images for supported boards
for board in $boards
do
	if [ -f resources/libreboot/config/"$board"/config ]; then
		./build roms helper $board
	fi
done

# Needed on i945 systems for the bucts/dd trick (documented)
# This enables the ROM to be flashed over the lenovo bios firmware
for i945board in x60 t60
do
	if [ -d bin/"$i945board"/ ]; then
		cd bin/"$i945board"/
		for i945rom in $(ls)
		do
			dd if="$i945rom" of=top64k.bin bs=1 skip=$[$(stat -c %s "$i945rom") - 0x10000] count=64k
			dd if=top64k.bin of="$i945rom" bs=1 seek=$[$(stat -c %s "$i945rom") - 0x20000] count=64k conv=notrunc
			rm -f top64k.bin
		done
		cd ../../
	fi
done

# Build the deblobbed descriptor+gbe regions for GM45/ICH9M targets.
# Then put them in the ROM images.
if [ -d bin/ ]; then
	cd bin/
	for board in "x200" "r400" "t400"
	do
		for romsize in "4m" "8m"
		do	
			if [ -d "$board"_"$romsize"b/ ]; then
				cd "$board"_"$romsize"b/
				../../resources/utilities/ich9deblob/ich9gen
				for rom in $(ls)
				do
					dd if=ich9fdgbe_"$romsize".bin of="$rom" bs=1 count=12k conv=notrunc
				done
				rm -f ich9fdgbe_4m.bin
				rm -f ich9fdgbe_8m.bin
				cd ../
			fi
		done
	done
	cd ../
fi

# The GRUB payloads are no longer needed
rm -f coreboot/grub_vesafb.elf
rm -f coreboot/grub_txtmode.elf
# The GRUB configs are no longer needed
rm -f coreboot/grub*cfg

printf "\n\n"

# ------------------- DONE ----------------------