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Add function to downgrade touchpad firmware on EVE

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Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
This commit is contained in:
Matt DeVillier
2019-12-01 12:45:14 -06:00
parent b7f6a5f03c
commit d4058339fd
2 changed files with 52 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
firmware.sh
View File

@@ -479,6 +479,45 @@ fi
read -ep "Press [Enter] to return to the main menu."
}
#########################
# Downgrade Touchpad FW #
#########################
function downgrade_touchpad_fw()
{
# offer to downgrade touchpad firmware on EVE
if [[ "${device^^}" = "EVE" ]]; then
echo_green "\nDowngrade Touchpad Firmware"
echo_yellow "If you plan to run Windows on your Pixelbook, it is necessary to downgrade
the touchpad firmware, otherwise the touchpad will not work."
read -ep "Do you wish to downgrade the touchpad firmware?? [y/N] "
if [[ "$REPLY" = "y" || "$REPLY" = "Y" ]] ; then
# ensure firmware write protect disabled
[[ "$wpEnabled" = true ]] && { exit_red "\nHardware write-protect enabled, cannot downgrade touchpad firmware."; return 1; }
# download TP firmware
echo_yellow "\nDownloading touchpad firmware\n(${touchpad_eve_fw})"
curl -s -LO "${other_source}${touchpad_eve_fw}"
curl -s -LO "${other_source}${touchpad_eve_fw}.sha1"
#verify checksum on downloaded file
sha1sum -c ${touchpad_eve_fw}.sha1 --quiet > /dev/null 2>&1
if [[ $? -eq 0 ]]; then
# flash TP firmware
echo_green "Flashing touchpad firmware -- do not touch the touchpad while updating!"
${flashromcmd} -p ec:type=tp -i EC_RW -w ${touchpad_eve_fw} -o /tmp/flashrom.log >/dev/null 2>&1
if [ $? -eq 0 ]; then
echo_green "Touchpad firmware successfully downgraded."
echo_yellow "Please reboot your Pixelbook now."
else
echo_red "Error flashing touchpad firmware:"
cat /tmp/flashrom.log
echo_yellow "\nThis function sometimes doesn't work under Linux, in which case it is\nrecommended to try under ChromiumOS."
fi
else
echo_red "Touchpad firmware download checksum fail; download corrupted, cannot flash."
fi
read -ep "Press [Enter] to return to the main menu."
fi
fi
}
##########################
# Restore Stock Firmware #
@@ -1161,6 +1200,9 @@ function menu_fwupdate() {
else
echo -e "${GRAY_TEXT}** ${GRAY_TEXT} 3)${GRAY_TEXT} Install/Update Full ROM Firmware${NORMAL}"
fi
if [[ "${device^^}" = "EVE" ]]; then
echo -e "${MENU}**${WP_TEXT} [WP]${NUMBER} D)${MENU} Downgrade Touchpad Firmware ${NORMAL}"
fi
if [[ "$unlockMenu" = true || ( "$isFullRom" = false && "$isBootStub" = false ) ]]; then
echo -e "${MENU}**${WP_TEXT} [WP]${NUMBER} 4)${MENU} Set Boot Options (GBB flags) ${NORMAL}"
echo -e "${MENU}**${WP_TEXT} [WP]${NUMBER} 5)${MENU} Set Hardware ID (HWID) ${NORMAL}"
@@ -1214,6 +1256,12 @@ function menu_fwupdate() {
menu_fwupdate
;;
[dD]) if [[ "${device^^}" = "EVE" ]]; then
downgrade_touchpad_fw
fi
menu_fwupdate
;;
4) if [[ "$unlockMenu" = true || "$isChromeOS" = true || "$isUnsupported" = false \
&& "$isFullRom" = false && "$isBootStub" = false ]]; then
set_boot_options

4
sources.sh
View File

@@ -12,6 +12,7 @@ bootstub_source="https://www.mrchromebox.tech/files/firmware/boot_stub/"
fullrom_source="https://www.mrchromebox.tech/files/firmware/full_rom/"
shellball_source="https://www.mrchromebox.tech/files/firmware/shellball/"
cbfs_source="https://www.mrchromebox.tech/files/firmware/cbfs/"
other_source="https://www.mrchromebox.tech/files/firmware/other/"
#LE sources
LE_url_official="http://releases.libreelec.tv/"
@@ -138,3 +139,6 @@ coreboot_uefi_librem13v4="coreboot_tiano-librem13v4-mrchromebox_20191125.rom"
coreboot_uefi_librem15v2="coreboot_tiano-librem15v2-mrchromebox_20191125.rom"
coreboot_uefi_librem15v3="coreboot_tiano-librem15v3-mrchromebox_20191125.rom"
coreboot_uefi_librem15v4="coreboot_tiano-librem15v4-mrchromebox_20191125.rom"
# other
touchpad_eve_fw="rose_v1.1.8546-ee1861e9e.bin"