| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.android.server.hdmi; |
| |
| import android.hardware.tv.cec.V1_0.SendMessageResult; |
| |
| import com.android.server.hdmi.HdmiCecLocalDeviceAudioSystem.TvSystemAudioModeSupportedCallback; |
| |
| /** |
| * Feature action that detects if TV supports system audio control. |
| */ |
| public class DetectTvSystemAudioModeSupportAction extends HdmiCecFeatureAction { |
| |
| // State that waits for <Active Source> once send <Request Active Source>. |
| private static final int STATE_WAITING_FOR_FEATURE_ABORT = 1; |
| |
| private TvSystemAudioModeSupportedCallback mCallback; |
| private int mState; |
| |
| DetectTvSystemAudioModeSupportAction(HdmiCecLocalDevice source, |
| TvSystemAudioModeSupportedCallback callback) { |
| super(source); |
| mCallback = callback; |
| } |
| |
| @Override |
| boolean start() { |
| mState = STATE_WAITING_FOR_FEATURE_ABORT; |
| addTimer(mState, HdmiConfig.TIMEOUT_MS); |
| sendSetSystemAudioMode(); |
| return true; |
| } |
| |
| @Override |
| boolean processCommand(HdmiCecMessage cmd) { |
| if (cmd.getOpcode() == Constants.MESSAGE_FEATURE_ABORT) { |
| if (mState != STATE_WAITING_FOR_FEATURE_ABORT) { |
| return false; |
| } |
| finishAction(false); |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| void handleTimerEvent(int state) { |
| if (mState != state) { |
| return; |
| } |
| |
| switch (mState) { |
| case STATE_WAITING_FOR_FEATURE_ABORT: |
| finishAction(true); |
| break; |
| } |
| } |
| |
| protected void sendSetSystemAudioMode() { |
| sendCommand( |
| HdmiCecMessageBuilder.buildSetSystemAudioMode(getSourceAddress(),Constants.ADDR_TV, |
| true), |
| result -> { |
| if (result != SendMessageResult.SUCCESS) { |
| finishAction(false); |
| } |
| }); |
| } |
| |
| private void finishAction(boolean supported) { |
| mCallback.onResult(supported); |
| audioSystem().setTvSystemAudioModeSupport(supported); |
| finish(); |
| } |
| } |