Shubang | 81170da | 2018-07-12 18:02:52 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2018 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 | package com.android.server.hdmi; |
| 17 | |
| 18 | import android.hardware.tv.cec.V1_0.SendMessageResult; |
| 19 | |
| 20 | /** |
| 21 | * Feature action that handles Audio Return Channel initiated by AVR devices. |
| 22 | */ |
| 23 | public class ArcInitiationActionFromAvr extends HdmiCecFeatureAction { |
Shubang | 81170da | 2018-07-12 18:02:52 -0700 | [diff] [blame] | 24 | // State in which waits for ARC response. |
| 25 | private static final int STATE_WAITING_FOR_INITIATE_ARC_RESPONSE = 1; |
| 26 | private static final int STATE_ARC_INITIATED = 2; |
| 27 | |
| 28 | // the required maximum response time specified in CEC 9.2 |
| 29 | private static final int TIMEOUT_MS = 1000; |
Amy | 25d5bf6 | 2018-09-21 16:36:52 -0700 | [diff] [blame] | 30 | private static final int MAX_RETRY_COUNT = 5; |
| 31 | |
| 32 | private int mSendRequestActiveSourceRetryCount = 0; |
Shubang | 81170da | 2018-07-12 18:02:52 -0700 | [diff] [blame] | 33 | |
| 34 | ArcInitiationActionFromAvr(HdmiCecLocalDevice source) { |
| 35 | super(source); |
| 36 | } |
| 37 | |
| 38 | @Override |
| 39 | boolean start() { |
| 40 | audioSystem().setArcStatus(true); |
| 41 | mState = STATE_WAITING_FOR_INITIATE_ARC_RESPONSE; |
| 42 | addTimer(mState, TIMEOUT_MS); |
| 43 | sendInitiateArc(); |
| 44 | return true; |
| 45 | } |
| 46 | |
| 47 | @Override |
| 48 | boolean processCommand(HdmiCecMessage cmd) { |
| 49 | if (mState != STATE_WAITING_FOR_INITIATE_ARC_RESPONSE) { |
| 50 | return false; |
| 51 | } |
| 52 | switch (cmd.getOpcode()) { |
| 53 | case Constants.MESSAGE_FEATURE_ABORT: |
Amy | f4b66f6 | 2018-11-09 09:52:50 -0800 | [diff] [blame^] | 54 | if ((cmd.getParams()[0] & 0xFF) == Constants.MESSAGE_INITIATE_ARC) { |
| 55 | audioSystem().setArcStatus(false); |
| 56 | finish(); |
| 57 | return true; |
| 58 | } else { |
| 59 | return false; |
| 60 | } |
Shubang | 81170da | 2018-07-12 18:02:52 -0700 | [diff] [blame] | 61 | case Constants.MESSAGE_REPORT_ARC_TERMINATED: |
| 62 | audioSystem().setArcStatus(false); |
| 63 | finish(); |
| 64 | return true; |
| 65 | case Constants.MESSAGE_REPORT_ARC_INITIATED: |
| 66 | mState = STATE_ARC_INITIATED; |
Amy | 25d5bf6 | 2018-09-21 16:36:52 -0700 | [diff] [blame] | 67 | if (audioSystem().getActiveSource().physicalAddress != getSourcePath() |
| 68 | && audioSystem().isSystemAudioActivated()) { |
| 69 | sendRequestActiveSource(); |
| 70 | } else { |
| 71 | finish(); |
| 72 | } |
Shubang | 81170da | 2018-07-12 18:02:52 -0700 | [diff] [blame] | 73 | return true; |
| 74 | } |
| 75 | return false; |
| 76 | } |
| 77 | |
| 78 | @Override |
| 79 | void handleTimerEvent(int state) { |
| 80 | if (mState != state) { |
| 81 | return; |
| 82 | } |
| 83 | |
| 84 | switch (mState) { |
| 85 | case STATE_WAITING_FOR_INITIATE_ARC_RESPONSE: |
| 86 | handleInitiateArcTimeout(); |
| 87 | break; |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | protected void sendInitiateArc() { |
| 92 | sendCommand(HdmiCecMessageBuilder.buildInitiateArc(getSourceAddress(), Constants.ADDR_TV), |
| 93 | result -> { |
| 94 | if (result != SendMessageResult.SUCCESS) { |
| 95 | audioSystem().setArcStatus(false); |
| 96 | finish(); |
| 97 | } |
| 98 | }); |
| 99 | } |
| 100 | |
| 101 | private void handleInitiateArcTimeout() { |
| 102 | HdmiLogger.debug("handleInitiateArcTimeout"); |
| 103 | audioSystem().setArcStatus(false); |
| 104 | finish(); |
| 105 | } |
| 106 | |
Amy | 25d5bf6 | 2018-09-21 16:36:52 -0700 | [diff] [blame] | 107 | protected void sendRequestActiveSource() { |
| 108 | sendCommand(HdmiCecMessageBuilder.buildRequestActiveSource(getSourceAddress()), |
| 109 | result -> { |
| 110 | if (result != SendMessageResult.SUCCESS) { |
| 111 | if (mSendRequestActiveSourceRetryCount < MAX_RETRY_COUNT) { |
| 112 | mSendRequestActiveSourceRetryCount++; |
| 113 | sendRequestActiveSource(); |
| 114 | } else { |
| 115 | finish(); |
| 116 | } |
| 117 | } else { |
| 118 | finish(); |
| 119 | } |
| 120 | }); |
| 121 | } |
Shubang | 81170da | 2018-07-12 18:02:52 -0700 | [diff] [blame] | 122 | } |