#!/bin/bash

#  helper script: downloads coreboot and patches/deblobs it
#
#	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 libreboot git.

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

printf "Downloading coreboot, patching coreboot and deblobbing coreboot\n"

# This grabs current base used, and applies patches
# This is also used to run the deblob scripts.

# Remove the old version that may exist
# ----------------------------------------------------------------------------------

rm -rf coreboot

# Get latest coreboot:
# ----------------------------------------------------------------------------------

# download it using git
git clone http://review.coreboot.org/coreboot

# there are modifications required
cd coreboot/

# reset to previously tested revision
git reset --hard 6532676f9328ca3bd197b714db4f1de23544cbde

# Get patches from review.coreboot.org
# ----------------------------------------------------------------------------------

printf "Text mode patch for X60 native graphics (main patch already merged in coreboot. See 6723 on coreboot gerrit)\n"
git fetch http://review.coreboot.org/coreboot refs/changes/25/6725/3 && git cherry-pick FETCH_HEAD

printf "lenovo/x60: Enable legacy brightness controls (native graphics)\n"
git fetch http://review.coreboot.org/coreboot refs/changes/48/7048/4 && git cherry-pick FETCH_HEAD

printf "Enable T60 native graphics\n"
git fetch http://review.coreboot.org/coreboot refs/changes/45/5345/9 && git cherry-pick FETCH_HEAD
printf "Enable text-mode graphics for T60\n"
git fetch http://review.coreboot.org/coreboot refs/changes/50/7050/2 && git cherry-pick FETCH_HEAD
printf "lenovo/t60: Enable legacy brightness controls (native graphics)\n"
git fetch http://review.coreboot.org/coreboot refs/changes/51/7051/1 && git cherry-pick FETCH_HEAD

printf "Enable cstates 1 and 2 on macbook21. This reduces heat / power usage when the system is idle\n"
git fetch http://review.coreboot.org/coreboot refs/changes/23/7923/2 && git cherry-pick FETCH_HEAD

printf "ec/lenovo/h8: permanently enable wifi/trackpoint/touchpad/bluetooth/wwan\n"
git fetch http://review.coreboot.org/coreboot refs/changes/58/7058/7 && git cherry-pick FETCH_HEAD

printf "i945: permanently set tft_brightness to 0xff. this fixes the issue with X60 and 'scrolling' backlight\n"
git fetch http://review.coreboot.org/coreboot refs/changes/61/7561/2 && git cherry-pick FETCH_HEAD

printf "northbridge/gm45/raminit.c: enable GS45 high-perf (i.e. add X200S support to libreboot)\n"
git fetch http://review.coreboot.org/coreboot refs/changes/86/7786/1 && git cherry-pick FETCH_HEAD
printf "fix uneven backlight on X200 (when setting brightness low)\n"
git fetch http://review.coreboot.org/coreboot refs/changes/79/7979/1 && git cherry-pick FETCH_HEAD

printf "ThinkPad R400 support. Based on http://review.coreboot.org/#/c/8393/\n"
# This diff will be deleted later, and instead the patch will be fetched from coreboot gerrit
# (and later, it won't even do that, once the R400 support is merged in coreboot)
git am ../resources/libreboot/patch/r400.diff

printf "Fix build issue when building coreboot without .git\n"
git fetch http://review.coreboot.org/coreboot refs/changes/23/8423/1 && git cherry-pick FETCH_HEAD
# TODO: delete the above line, test these commits:
# http://review.coreboot.org/#/c/8427/
# http://review.coreboot.org/#/c/8428/

# Run coreboot-libre deblob scripts
# ---------------------------------------------------------------------------------

printf "Deleting .git* in coreboot/ (history inside .git contains the blobs that were deleted)\n"
rm -rf .git
rm -f .gitreview
rm -f .gitmodules
rm -f .gitignore

cd ../

printf "Deblobbing coreboot\n"
./resources/utilities/coreboot-libre/deblob

printf "\n\n"

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