steamlink.sh

#!/bin/bash
#
# Script to launch the Steam Link app on Raspberry Pi

TOP=$(cd "$(dirname "$0")" && pwd)

# Set up the temporary directory
export TMPDIR="$TOP/.tmp"
rm -rf "$TMPDIR"
mkdir -p "$TMPDIR"

# Restore the display when we're done
cleanup()
{
    pulseaudio -k
    kill $CEC_PID 2>/dev/null
    screenblank -k
}
trap cleanup 2 3 15

# stop kodi
if [ ! -z "$(pidof kodi.bin)" ]; then
    echo 'stopping kodi'
    systemctl stop kodi
fi

# setup udev
#if [ ! -f /lib/udev/rules.d/60-steam-input.rules ]; then
if [ ! -f /lib/udev/rules.d/56-steamlink.rules ]; then
    echo 'adding udev overlay'
    mount -t overlay overlay -o lowerdir=/lib/udev/rules.d,upperdir=/storage/steamlink/udev/rules.d/,workdir=/storage/steamlink/overlay_work /lib/udev/rules.d
    udevadm trigger
fi

# Run the shell application and launch streaming
QT_VERSION=5.14.1
export HOME="/storage"
export PATH="$TOP/bin:$PATH"
export QTDIR="$TOP/Qt-$QT_VERSION"
export QT_PLUGIN_PATH="$QTDIR/plugins"
#export QT_QPA_PLATFORM="eglfs"
#export QT_QPA_PLATFORM_PLUGIN_PATH="$QT_PLUGIN_PATH/platforms"
export LD_LIBRARY_PATH="$TOP/lib:$QTDIR/lib:$LD_LIBRARY_PATH"
#export LD_LIBRARY_PATH="$QTDIR/lib:$TOP/lib:$LD_LIBRARY_PATH"
export SDL_GAMECONTROLLERCONFIG_FILE="${XDG_DATA_HOME:-$HOME/.local/share}/Valve Corporation/SteamLink/controller_map.txt"
#export SDL_GAMECONTROLLERCONFIG_FILE="$TOP/SteamLinkcontroller_map.txt"

QPLATFORM="eglfs"
export QT_QPA_EGLFS_FORCE888=1

echo 'starting pulseaudio'
pulseaudio -k 2>/dev/null
cat /etc/pulse/default.pa | sed 's/^\(load-module module-udev-detect\|load-module module-detect\)/\1 tsched=0/' > /storage/steamlink/pulse_default.pa
pulseaudio -D -n -F "$TOP/pulse_default.pa"

echo 'starting cec'
cec-client </dev/null | steamlink-cec &
CEC_PID="$(jobs -p) $!"

echo 'starting steamlink'
while true; do
    shell -platform "$QPLATFORM" "$@"

    # See if the shell wanted to launch anything
    cmdline_file="$TMPDIR/launch_cmdline.txt"
    if [ -f "$cmdline_file" ]; then
        cmd=`cat "$cmdline_file"`
        eval $cmd
        rm -f "$cmdline_file"
    else
        # We're all done...
        break
    fi
done

cleanup