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153 lines
3.7 KiB
153 lines
3.7 KiB
#!/bin/bash
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# SPDX-License-Identifier: GPL-3.0+
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# Copyright (C) 2018, Martin Kepplinger <martink@posteo.de>
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[0;33m'
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NC='\033[0m'
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set -e
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have_input_image=0
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usage()
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{
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echo "Skulls for the X230"
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echo " Run this script on the X230 directly."
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echo ""
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echo " This flashes Heads to your BIOS, see http://osresearch.net"
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echo " Heads is a different project. No image is included."
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echo " Read https://github.com/osresearch/heads for how to build it"
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echo " Make sure you booted Linux with iomem=relaxed"
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echo ""
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echo "Usage: $0 -i <heads_image>.rom"
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}
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check_battery() {
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local capacity=$(cat /sys/class/power_supply/BAT*/capacity 2>/dev/null || echo -ne "0")
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local online=$(cat /sys/class/power_supply/AC/online 2>/dev/null || cat /sys/class/power_supply/ADP*/online 2>/dev/null || echo -ne "0")
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local failed=0
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if [ "${online}" == "0" ] ; then
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failed=1
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fi
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if [ "${capacity}" -lt 25 ]; then
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failed=1
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fi
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if [ $failed == "1" ]; then
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echo -e "${YELLOW}WARNING:${NC} To prevent shutdowns, we recommend to only run this script when"
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echo " your laptop is plugged in to the power supply AND"
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echo " the battery is present and sufficiently charged (over 25%)."
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while true; do
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read -r -p "Continue anyways? (please do NOT!) y/N: " yn
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case $yn in
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[Yy]* ) break;;
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[Nn]* ) exit;;
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* ) exit;;
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esac
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done
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fi
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}
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args=$(getopt -o i:h -- "$@")
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if [ $? -ne 0 ] ; then
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usage
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exit 1
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fi
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eval set -- "$args"
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while [ $# -gt 0 ]
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do
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case "$1" in
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-i)
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INPUT_IMAGE_PATH=$2
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have_input_image=1
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shift
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;;
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-h)
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usage
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exit 1
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;;
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--)
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shift
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break
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;;
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*)
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echo "Invalid option: $1"
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exit 1
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;;
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esac
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shift
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done
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if [ ! "$have_input_image" -gt 0 ] ; then
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image_available=$(ls -1 | grep rom || true)
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if [ -z "${image_available}" ] ; then
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echo "No image file found. Please add -i <file>"
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echo ""
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usage
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exit 1
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fi
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prompt="file not specified. Please select a file to flash:"
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options=( $(find -maxdepth 1 -name "*rom" -print0 | xargs -0) )
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PS3="$prompt "
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select INPUT_IMAGE_PATH in "${options[@]}" "Quit" ; do
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if (( REPLY == 1 + ${#options[@]} )) ; then
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exit
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elif (( REPLY > 0 && REPLY <= ${#options[@]} )) ; then
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break
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else
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echo "Invalid option. Try another one."
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fi
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done
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fi
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OUTPUT_PATH=output
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INPUT_IMAGE_NAME=$(basename "${INPUT_IMAGE_PATH}")
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OUTPUT_IMAGE_NAME=${INPUT_IMAGE_NAME%%.*}_prepared.rom
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OUTPUT_IMAGE_PATH=${OUTPUT_PATH}/${OUTPUT_IMAGE_NAME}
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echo -e "input: ${INPUT_IMAGE_NAME}"
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echo -e "output: ${OUTPUT_IMAGE_PATH}"
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input_filesize=$(wc -c <"$INPUT_IMAGE_PATH")
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reference_filesize=12582912
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if [ ! "$input_filesize" -eq "$reference_filesize" ] ; then
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echo "Error: input file must be 12MB of size"
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exit 1
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fi
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rm -rf ${OUTPUT_PATH}
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mkdir ${OUTPUT_PATH}
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cp "${INPUT_IMAGE_PATH}" "${OUTPUT_IMAGE_PATH}"
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LAYOUT_FILENAME="x230-layout-heads.txt"
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echo "0x00000000:0x00000fff ifd" > ${OUTPUT_PATH}/${LAYOUT_FILENAME}
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echo "0x00001000:0x00002fff gbe" >> ${OUTPUT_PATH}/${LAYOUT_FILENAME}
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echo "0x00003000:0x004fffff me" >> ${OUTPUT_PATH}/${LAYOUT_FILENAME}
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echo "0x00500000:0x00bfffff bios" >> ${OUTPUT_PATH}/${LAYOUT_FILENAME}
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echo -e "${YELLOW}WARNING${NC}: Make sure not to power off your computer or interrupt this process in any way!"
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echo -e " Interrupting this process may result in irreparable damage to your computer!"
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check_battery
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while true; do
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read -r -p "Flash the BIOS now? y/N: " yn
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case $yn in
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[Yy]* ) cd output && flashrom -p internal --layout ${LAYOUT_FILENAME} --image bios -w "${OUTPUT_IMAGE_NAME}"; break;;
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[Nn]* ) exit;;
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* ) exit;;
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esac
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done
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while true; do
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read -r -p "Reboot now? (please do!) Y/n: " yn
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case $yn in
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[Yy]* ) reboot ;;
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[Nn]* ) exit;;
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* ) reboot;;
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esac
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done
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