gistfile1.txt
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#!/bin/sh
# Some devices (xiaomi-surya) ship with a touchscreen that has no persistent
# firmware storage. That is unfortunate and means we need to provide firmware
# from the initramfs for FDE to work.
# This is only the case for the novatek touchscreens. Their firmware resides
# in /vendor/firmware. Let's copy it over.
# The file names are novatek_ts_huaxing_fw.bin and novatek_ts_tianma_fw.bin,
# for both panels respectively.
if lsmod | grep -wq "nt36xxx"
then
echo "nt36xxx is loaded, mounting firmware for it!"
mkdir /firmware-mnt
for part in /sys/block/sd*/sd*
do
DEVNAME="$(grep DEVNAME "$part"/uevent | sed 's/DEVNAME=//g')"
PARTNAME="$(grep PARTNAME "$part"/uevent | sed 's/PARTNAME=//g')"
# Could be vendor_a or vendor_b
if [[ "$PARTNAME" == "vendor"* ]]
then
mount -o ro,nodev,noexec,nosuid \
"/dev/$DEVNAME" /firmware-mnt
for firmware_file in /firmware-mnt/firmware/novatek_ts_*_fw.bin
do
echo "Found novatek firmware file at $firmware_file"
cp $firmware_file /lib/firmware/
done
umount /firmware-mnt
fi
done
fi
| 1 | #!/bin/sh |
| 2 | |
| 3 | # Some devices (xiaomi-surya) ship with a touchscreen that has no persistent |
| 4 | # firmware storage. That is unfortunate and means we need to provide firmware |
| 5 | # from the initramfs for FDE to work. |
| 6 | # This is only the case for the novatek touchscreens. Their firmware resides |
| 7 | # in /vendor/firmware. Let's copy it over. |
| 8 | # The file names are novatek_ts_huaxing_fw.bin and novatek_ts_tianma_fw.bin, |
| 9 | # for both panels respectively. |
| 10 | |
| 11 | if lsmod | grep -wq "nt36xxx" |
| 12 | then |
| 13 | echo "nt36xxx is loaded, mounting firmware for it!" |
| 14 | |
| 15 | mkdir /firmware-mnt |
| 16 | |
| 17 | for part in /sys/block/sd*/sd* |
| 18 | do |
| 19 | DEVNAME="$(grep DEVNAME "$part"/uevent | sed 's/DEVNAME=//g')" |
| 20 | PARTNAME="$(grep PARTNAME "$part"/uevent | sed 's/PARTNAME=//g')" |
| 21 | |
| 22 | # Could be vendor_a or vendor_b |
| 23 | if [[ "$PARTNAME" == "vendor"* ]] |
| 24 | then |
| 25 | mount -o ro,nodev,noexec,nosuid \ |
| 26 | "/dev/$DEVNAME" /firmware-mnt |
| 27 | |
| 28 | for firmware_file in /firmware-mnt/firmware/novatek_ts_*_fw.bin |
| 29 | do |
| 30 | echo "Found novatek firmware file at $firmware_file" |
| 31 | |
| 32 | cp $firmware_file /lib/firmware/ |
| 33 | done |
| 34 | |
| 35 | umount /firmware-mnt |
| 36 | fi |
| 37 | done |
| 38 | fi |
| 39 |