overlay-sarien/chromeos-base/chromeos-bsp-sarien/files/board_hardware_features

#!/bin/sh
# Copyright 2019 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# Customization script to detect and modify board hardware feature list, based
# on /etc/hardware_features.xml. Read go/arc-board-features for how to use this
# file.

die() {
  echo "ERROR: $@" >&2
  exit 1
}

modify_feature() {
  local file="$1"
  local feature="$2"
  local pattern="$3"
  local replace="$4"

  # Assume each feature is already defined in one line.
  sed -e "/name=\"${feature}\"/s/${pattern}/${replace}/" -i "${file}"
}

enable_feature() {
  modify_feature "$@" "<unavailable-feature " "<feature "
}

disable_feature() {
  modify_feature "$@" "<feature " "<unavailable-feature "
}

has_hardware_property() {
  [ "$(/usr/bin/cros_config /hardware-properties $1)" = "true" ]
}

has_accelerometer() {
  has_hardware_property has-base-accelerometer || has_hardware_property has-lid-accelerometer
}

has_gyro() {
  has_hardware_property has-base-gyroscope || has_hardware_property has-lid-gyroscope
}

has_compass() {
  has_hardware_property has-base-magnetometer || has_hardware_property has-lid-magnetometer
}

has_multicamera() {
  local camera_count
  camera_count="$(/usr/bin/cros_config /camera count)"
  [ "${camera_count}" = "2" ]
}

has_touchscreen() {
  has_hardware_property has-touchscreen
}

main() {
  if [ "$#" != 1 ]; then
    die "Usage: board_hardware_features PATH_TO_PLATFORM_XML"
  fi
  local file="$1"

  if ! has_accelerometer; then
    echo "Disable accelerometer feature."
    disable_feature "${file}" android.hardware.sensor.accelerometer
  else
    echo "Enable accelerometer feature."
    enable_feature "${file}" android.hardware.sensor.accelerometer
  fi

  if ! has_gyro; then
    echo "Disable gyro feature."
    disable_feature "${file}" android.hardware.sensor.gyroscope
  else
    echo "Enable gyro feature."
    enable_feature "${file}" android.hardware.sensor.gyroscope
  fi

  if ! has_compass; then
    echo "Disable compass feature."
    disable_feature "${file}" android.hardware.sensor.compass
  else
    echo "Enable compass feature."
    enable_feature "${file}" android.hardware.sensor.compass
  fi

  if ! has_multicamera; then
    echo "Disable back camera features."
    disable_feature "${file}" android.hardware.camera
    disable_feature "${file}" android.hardware.camera.autofocus
  else
    echo "Enable back camera features."
    enable_feature "${file}" android.hardware.camera
    enable_feature "${file}" android.hardware.camera.autofocus
  fi

  if ! has_touchscreen; then
    echo "Disable touchscreen features."
    disable_feature "${file}" android.hardware.touchscreen
    disable_feature "${file}" android.hardware.touchscreen.multitouch
    disable_feature "${file}" android.hardware.touchscreen.multitouch.distinct
    disable_feature "${file}" android.hardware.touchscreen.multitouch.jazzhand
  else
    echo "Enable touchscreen features."
    enable_feature "${file}" android.hardware.touchscreen
    enable_feature "${file}" android.hardware.touchscreen.multitouch
    enable_feature "${file}" android.hardware.touchscreen.multitouch.distinct
    enable_feature "${file}" android.hardware.touchscreen.multitouch.jazzhand
  fi
}

main "$@"