steamdeck-install.sh

#!/bin/sh
set -e

# Steam Deck UNOFFCIAL Tilt Five install script
# Save to a directory with the tiltfive_driver_1.4.1_amd64.unpacked_debs.tar.xz archive
# chmod +x steamdeck-install.sh
# sudo sh ./steamdeck-install.sh

# Adjust paths if necessary
TILTFIVE_HOME_DIR="/var/opt/tiltfive"
TILTFIVE_SERVICE_DIR="tiltfive_driver_1.4.1_amd64.unpacked_debs/tiltfive-service_1.4.1_amd64/files"
TILTFIVE_CONTROL_PANEL_DIR="tiltfive_driver_1.4.1_amd64.unpacked_debs/tiltfive-control-panel_1.4.1_amd64/files"

# Adjust archive filename if necessary
tar -xf tiltfive_driver_1.4.1_amd64.unpacked_debs.tar.xz

steamos-readonly disable

# Create a T5 user
if ! id -u tiltfive >/dev/null 2>&1; then
    useradd -r -s /usr/bin/nologin -d "$TILTFIVE_HOME_DIR" -U tiltfive
fi

# Create T5 dirs
install -g tiltfive -o tiltfive -m 0775 -d "/opt/tiltfive"
install -g tiltfive -o tiltfive -m 0775 -d "/opt/tiltfive/bin"
install -g tiltfive -o tiltfive -m 0775 -d "$TILTFIVE_HOME_DIR"
install -g tiltfive -o tiltfive -m 0775 -d "$TILTFIVE_HOME_DIR/firmware"
install -g tiltfive -o tiltfive -m 0775 -d "$TILTFIVE_HOME_DIR/log"

# Copy tiltfive-service files
cp $TILTFIVE_SERVICE_DIR/etc/systemd/system/tiltfive.service /etc/systemd/system/
cp $TILTFIVE_SERVICE_DIR/lib/udev/rules.d/40-tiltfive.rules /lib/udev/rules.d/
cp $TILTFIVE_SERVICE_DIR/opt/tiltfive/LICENSE.service.txt /opt/tiltfive/
cp $TILTFIVE_SERVICE_DIR/opt/tiltfive/bin/tiltfive-service /opt/tiltfive/bin/
cp $TILTFIVE_SERVICE_DIR/var/opt/tiltfive/firmware/hmd-firmware $TILTFIVE_HOME_DIR/firmware/

# Set user and group
chown tiltfive:tiltfive /etc/systemd/system/tiltfive.service
chown tiltfive:tiltfive /lib/udev/rules.d/40-tiltfive.rules
chown tiltfive:tiltfive /opt/tiltfive/LICENSE.service.txt
chown tiltfive:tiltfive /opt/tiltfive/bin/tiltfive-service
chown tiltfive:tiltfive $TILTFIVE_HOME_DIR/firmware/hmd-firmware

chmod +x /opt/tiltfive/bin/tiltfive-service

# Start the service
systemctl start tiltfive.service

echo "tiltfive-service has been installed."

# Copy tiltfive-control-panel files
cp -r $TILTFIVE_CONTROL_PANEL_DIR/opt/tiltfive/control-panel/ /opt/tiltfive/
cp $TILTFIVE_CONTROL_PANEL_DIR/opt/tiltfive/LICENSE.control-panel.txt /opt/tiltfive/
cp $TILTFIVE_CONTROL_PANEL_DIR/usr/share/applications/tiltfive-control-panel.desktop /usr/share/applications/

# Set user and group
chown -R tiltfive:tiltfive /opt/tiltfive/
chown tiltfive:tiltfive /usr/share/applications/tiltfive-control-panel.desktop

echo "tiltfive-control-panel has been installed."

# Add usbfs memory value to GRUB - required for more than single pair of glasses, since default value is just 16MiB
GRUB_CONFIG="/etc/default/grub"
OPTION_NAME="usbcore.usbfs_memory_mb"
NEW_VALUE="256"

if grep -q "$OPTION_NAME" "$GRUB_CONFIG"; then
    sed -i "s/\($OPTION_NAME=\)[0-9]\+/\1$NEW_VALUE/" "$GRUB_CONFIG"
    echo "$OPTION_NAME updated to $NEW_VALUE in $GRUB_CONFIG."
else
    sed -i "s/^GRUB_CMDLINE_LINUX_DEFAULT=\"\(.*\)\"/GRUB_CMDLINE_LINUX_DEFAULT=\"\1 $OPTION_NAME=$NEW_VALUE\"/" "$GRUB_CONFIG"
    echo "$OPTION_NAME=$NEW_VALUE added to $GRUB_CONFIG."
fi

update-grub

echo "GRUB has been updated."

steamos-readonly enable

echo "Tilt Five has been installed successfully. Please reboot the Steam Deck."