#!/bin/bash

#  getcb script: downloads coreboot and patches/deblobs it
#
#	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

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

# (the idea is that this script will reproduce the coreboot directory included with this version of libreboot)

# You need the dependencies from ./builddeb or ./buildpac to use this script.

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

echo "DOWNLOADING AND PATCHING COREBOOT"

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 8ffc085e1affaabbe3dca8ac6a89346b71dfc02e

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

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

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

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

# Note: macbook21 already has backlight control.

# ec/lenovo/h8: permanently enable wifi/trackpoint/touchpad/bluetooth/wwan
git fetch http://review.coreboot.org/coreboot refs/changes/58/7058/3 && git cherry-pick FETCH_HEAD

# Apply necessary patches (from resources/libreboot/patch/)
# ---------------------------------------------------------------------------------

# T60: fix compilation when using 6731 from review.coreboot.org
git apply ../resources/libreboot/patch/t60_6731buildfix.diff
## 6731 is abandoned and there's no point putting this in coreboot gerrit.
## there is no harm in it being a diff

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

# Deblobbing was done manually for this pre-release (will re-tool linux-libre deblob scripts later):
cd ../
echo "deblobbing coreboot"
./DEBLOB
# The git history (git diff command) shows what blobs were deleted (including the blobs themselves) which is a freedom issue. Just delete .git altogether:
cd coreboot
rm -rf .git
rm -rf .gitreview
rm -rf .gitmodules
rm -rf .gitignore
cd ../
echo "finished deblobbing coreboot"

# we're done
echo "FINISHED DOWNLOADING AND PATCHING COREBOOT"

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