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 17 package com.android.server.hdmi; 18 19 import android.hardware.hdmi.HdmiDeviceInfo; 20 import android.hardware.hdmi.IHdmiControlCallback; 21 22 23 /** 24 * Feature action that handles System Audio initiated by TV devices. 25 */ 26 final class SystemAudioActionFromTv extends SystemAudioAction { 27 28 /** 29 * Constructor 30 * 31 * @param sourceAddress {@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 is invalid 36 */ 37 SystemAudioActionFromTv(HdmiCecLocalDevice sourceAddress, int avrAddress, 38 boolean targetStatus, IHdmiControlCallback callback) { 39 super(sourceAddress, avrAddress, targetStatus, callback); 40 HdmiUtils.verifyAddressType(getSourceAddress(), HdmiDeviceInfo.DEVICE_TV); 41 } 42 43 @Override 44 boolean start() { 45 removeSystemAudioActionInProgress(); 46 sendSystemAudioModeRequest(); 47 return true; 48 } 49 } 50