SystemAudioActionFromAvr.java revision 16321b80077815eebeceee249ff7a29e336e04a4
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.HdmiCec; 20 21/** 22 * Feature action that handles System Audio initiated by AVR devices. 23 */ 24final class SystemAudioActionFromAvr extends SystemAudioAction { 25 /** 26 * Constructor 27 * 28 * @param source {@link HdmiCecLocalDevice} instance 29 * @param avrAddress logical address of AVR device 30 * @param targetStatus Whether to enable the system audio mode or not 31 * @throw IllegalArugmentException if device type of tvAddress and avrAddress is invalid 32 */ 33 SystemAudioActionFromAvr(HdmiCecLocalDevice source, int avrAddress, 34 boolean targetStatus) { 35 super(source, avrAddress, targetStatus); 36 HdmiUtils.verifyAddressType(getSourceAddress(), HdmiCec.DEVICE_TV); 37 } 38 39 @Override 40 boolean start() { 41 removeSystemAudioActionInProgress(); 42 handleSystemAudioActionFromAvr(); 43 return true; 44 } 45 46 private void handleSystemAudioActionFromAvr() { 47 if (mTargetAudioStatus == tv().getSystemAudioMode()) { 48 finish(); 49 return; 50 } 51 if (tv().isInPresetInstallationMode()) { 52 sendCommand(HdmiCecMessageBuilder.buildFeatureAbortCommand( 53 getSourceAddress(), mAvrLogicalAddress, 54 HdmiCec.MESSAGE_SET_SYSTEM_AUDIO_MODE, HdmiConstants.ABORT_REFUSED)); 55 mTargetAudioStatus = false; 56 sendSystemAudioModeRequest(); 57 return; 58 } 59 // TODO: Stop the action for System Audio Mode initialization if it is running. 60 if (mTargetAudioStatus) { 61 setSystemAudioMode(true); 62 startAudioStatusAction(); 63 } else { 64 setSystemAudioMode(false); 65 finish(); 66 } 67 } 68} 69