1/* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.hdmi; 18 19import android.hardware.hdmi.HdmiDeviceInfo; 20import android.hardware.hdmi.HdmiControlManager; 21import android.hardware.hdmi.IHdmiControlCallback; 22 23/** 24 * Feature action that handles System Audio initiated by AVR devices. 25 */ 26// Seq #33 27final class SystemAudioActionFromAvr extends SystemAudioAction { 28 /** 29 * Constructor 30 * 31 * @param source {@link HdmiCecLocalDevice} instance 32 * @param avrAddress logical address of AVR device 33 * @param targetStatus Whether to enable the system audio mode or not 34 * @param callback callback interface to be notified when it's done 35 * @throw IllegalArugmentException if device type of tvAddress and avrAddress is invalid 36 */ 37 SystemAudioActionFromAvr(HdmiCecLocalDevice source, int avrAddress, 38 boolean targetStatus, IHdmiControlCallback callback) { 39 super(source, avrAddress, targetStatus, callback); 40 HdmiUtils.verifyAddressType(getSourceAddress(), HdmiDeviceInfo.DEVICE_TV); 41 } 42 43 @Override 44 boolean start() { 45 removeSystemAudioActionInProgress(); 46 handleSystemAudioActionFromAvr(); 47 return true; 48 } 49 50 private void handleSystemAudioActionFromAvr() { 51 if (mTargetAudioStatus == tv().isSystemAudioActivated()) { 52 finishWithCallback(HdmiControlManager.RESULT_SUCCESS); 53 return; 54 } 55 if (tv().isProhibitMode()) { 56 sendCommand(HdmiCecMessageBuilder.buildFeatureAbortCommand( 57 getSourceAddress(), mAvrLogicalAddress, 58 Constants.MESSAGE_SET_SYSTEM_AUDIO_MODE, Constants.ABORT_REFUSED)); 59 mTargetAudioStatus = false; 60 sendSystemAudioModeRequest(); 61 return; 62 } 63 64 removeAction(SystemAudioAutoInitiationAction.class); 65 66 if (mTargetAudioStatus) { 67 setSystemAudioMode(true); 68 startAudioStatusAction(); 69 } else { 70 setSystemAudioMode(false); 71 finishWithCallback(HdmiControlManager.RESULT_SUCCESS); 72 } 73 } 74} 75