mh
/
lc-coreboot


								#!/bin/bash

								# SPDX-License-Identifier: GPL-3.0+

								# Copyright (C) 2019, Martin Kepplinger <martink@posteo.de>


								set -e


								cd "$(dirname "$0")"


								source "util/functions.sh"


								have_input_image=0

								request_update=0

								verbose=0


								usage()

								{

									echo "Skulls for the X230"

									echo "  Run this script on the X230 directly."

									echo ""

									echo "  This flashes the BIOS with the given image."

									echo "  Make sure you booted Linux with iomem=relaxed"

									echo ""

									echo "Usage: $0 [-i <4mb_top_image>.rom] [-U] [-h]"

									echo "Options:"

									echo "  -i	path to the image to flash"

									echo "  -U	update: check for a new Skulls package online"

									echo "  -v	verbose output. prints more information"

									echo "  -h	print this help text"

								}


								args=$(getopt -o i:hUv -- "$@")

								if [ $? -ne 0 ] ; then

									usage

									exit 1

								fi


								eval set -- "$args"

								while [ $# -gt 0 ]

								do

									case "$1" in

									-i)

										INPUT_IMAGE_PATH=$2

										have_input_image=1

										shift

										;;

									-h)

										usage

										exit 1

										;;

									-U)

										request_update=1

										;;

									-v)

										verbose=1

										;;

									--)

										shift

										break

										;;

									*)

										echo "Invalid option: $1"

										exit 1

										;;

									esac

									shift

								done


								if [ "$request_update" -gt 0 ] ; then

									warn_not_root


									command -v curl >/dev/null 2>&1 || { echo -e >&2 "${RED}Please install curl.${NC}"; exit 1; }


									CURRENT_VERSION=$(head -2 NEWS | egrep -o "([0-9]{1,}\.)+[0-9]{1,}")


									UPSTREAM_FILE=$(curl -s https://api.github.com/repos/merge/skulls/releases/latest | grep browser_download_url | cut -d'"' -f4 | cut -d'/' -f9 | head -n 1)


									UPSTREAM_VERSION=$(curl -s https://api.github.com/repos/merge/skulls/releases/latest | grep browser_download_url | cut -d'"' -f4 | cut -d'/' -f9 | head -n 1 | egrep -o "([0-9]{1,}\.)+[0-9]{1,}")


									UPSTREAM_X230=$(echo ${UPSTREAM_FILE} | grep x230)

									if [[ -z "$UPSTREAM_X230" ]] ; then

										echo "The latest release didn't include the X230"

										exit 0

									fi


									if [[ $verbose -gt 0 ]] ; then

										echo "This is v$CURRENT_VERSION and latest is v$UPSTREAM_VERSION"

									fi


									if [[ "$CURRENT_VERSION" = "$UPSTREAM_VERSION" ]] ; then

										echo -e "${GREEN}You are using the latest version of Skulls for the X230${NC}"

										exit 0

									elif [[ "$CURRENT_VERSION" < "$UPSTREAM_VERSION" ]] ; then

										echo -e "${RED}You have ${CURRENT_VERSION} but there is version ${UPSTREAM_VERSION} available for the X230. Please update.${NC}"

										read -r -p "Download it to the parent directory now? [y/N] " response

										case "$response" in

											[yY][eE][sS]|[yY])

												UPSTREAM_URL=$(curl -s https://api.github.com/repos/merge/skulls/releases/latest | grep browser_download_url | cut -d'"' -f4 | head -n 1)

												UPSTREAM_URL_SHA256=$(curl -s https://api.github.com/repos/merge/skulls/releases/latest | grep browser_download_url | cut -d'"' -f4 | head -n 3 | tail -n 1)

												cd ..

												curl -LO ${UPSTREAM_URL}

												curl -LO ${UPSTREAM_URL_SHA256}

												sha256sum -c ${UPSTREAM_FILE}.sha256

												mkdir skulls-x230-${UPSTREAM_VERSION}

												tar -xf ${UPSTREAM_FILE} -C skulls-x230-${UPSTREAM_VERSION}/

												echo "Version ${UPSTREAM_VERSION} extracted to ../skulls-x230-${UPSTREAM_VERSION}/"

												echo "Please continue in the new directory."

												;;

											*)

												exit 0

											;;

										esac

									else

										echo "You seem to use a development version. Please use release package skulls-x230 ${UPSTREAM_VERSION} for flashing."

									fi


									exit 0

								fi


								force_x230_and_root


								BIOS_VENDOR=$(dmidecode -t bios | grep Vendor | cut -d':' -f2)

								if [[ $BIOS_VENDOR != *"coreboot"* ]] ; then

									BIOS_VERSION=$(dmidecode -s bios-version | grep -o '[1-2].[0-7][0-9]')

									bios_major=$(echo "$BIOS_VERSION" | cut -d. -f1)

									bios_minor=$(echo "$BIOS_VERSION" | cut -d. -f2)


									if [ "${bios_minor}" -ge "61" ] ; then

										echo "Ready to use external_install_bottom.sh and external_install_top.sh"

										echo "Please run both scripts from a different computer with a"

										echo "hardware SPI flasher."

									else

										echo -e "The installed original BIOS is very old."

										echo -e "${RED}Please upgrade${NC} from lenovo.com before installing coreboot."

									fi

									exit 0

								fi


								if [[ "$verbose" -gt 0 ]] ; then

									if [ -d "/sys/class/power_supply/BAT0" ] ; then

										bat_last_full=$(cat /sys/class/power_supply/BAT0/charge_full)

										bat_design_cap=$(cat /sys/class/power_supply/BAT0/charge_full_design)

										bat_health=$(echo "scale=2 ; $bat_last_full/$bat_design_cap" | bc | sed 's/^\./0./')

										echo "INFO: Battery hardware health is $bat_health%"

									fi

								fi


								if [ ! "$have_input_image" -gt 0 ] ; then

									image_available=$(ls -1 | grep x230_coreboot_seabios || true)

									if [ -z "${image_available}" ] ; then

										echo "No image file found. Please add -i <file>"

										echo ""

										usage

										exit 1

									fi


									prompt="file not specified. Please select a file to flash. Please read the README for details about the differences:"

									options=( $(find -maxdepth 1 -name "x230_coreboot_seabios*rom" -print0 | xargs -0) )


									PS3="$prompt "

									select INPUT_IMAGE_PATH in "${options[@]}" "Quit" ; do

										if (( REPLY == 1 + ${#options[@]} )) ; then

											exit


										elif (( REPLY > 0 && REPLY <= ${#options[@]} )) ; then

											break


										else

											echo "Invalid option. Try another one."

										fi

									done

								fi


								OUTPUT_PATH=output

								INPUT_IMAGE_NAME=$(basename "${INPUT_IMAGE_PATH}")

								OUTPUT_IMAGE_NAME=${INPUT_IMAGE_NAME%%.*}_prepared_12mb.rom

								OUTPUT_IMAGE_PATH=${OUTPUT_PATH}/${OUTPUT_IMAGE_NAME}


								echo -e "input: ${INPUT_IMAGE_NAME}"

								echo -e "output: ${OUTPUT_IMAGE_PATH}"


								input_filesize=$(wc -c <"$INPUT_IMAGE_PATH")

								reference_filesize=4194304

								if [ ! "$input_filesize" -eq "$reference_filesize" ] ; then

									echo "Error: input file must be 4MB of size"

									exit 1

								fi


								rm -rf ${OUTPUT_PATH}

								mkdir ${OUTPUT_PATH}


								dd if=/dev/zero of="${OUTPUT_IMAGE_PATH}" bs=4M count=2 status=none

								dd if="${INPUT_IMAGE_PATH}" oflag=append conv=notrunc of="${OUTPUT_IMAGE_PATH}" bs=4M status=none


								LAYOUT_FILENAME="x230-layout.txt"


								echo "0x00000000:0x007fffff ifdmegbe" > ${OUTPUT_PATH}/${LAYOUT_FILENAME}

								echo "0x00800000:0x00bfffff bios" >> ${OUTPUT_PATH}/${LAYOUT_FILENAME}


								echo -e "${YELLOW}WARNING${NC}: Make sure not to power off your computer or interrupt this process in any way!"

								echo -e "         Interrupting this process may result in irreparable damage to your computer!"

								check_battery

								while true; do

									read -r -p "Flash the BIOS now? y/N: " yn

									case $yn in

										[Yy]* ) cd ${OUTPUT_PATH} && flashrom -p internal --layout ${LAYOUT_FILENAME} --image bios -w "${OUTPUT_IMAGE_NAME}"; break;;

										[Nn]* ) exit;;

										* ) exit;;

									esac

								done


								rm -rf ${OUTPUT_PATH}


								while true; do

									read -r -p "Reboot now? (please do!) Y/n: " yn

									case $yn in

										[Yy]* ) reboot ;;

										[Nn]* ) exit;;

										* ) reboot;;

									esac

								done