Yuncheol Heo | 25c2029 | 2014-07-31 17:59:39 +0900 | [diff] [blame] | 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.util.SparseArray; |
| 20 | |
| 21 | /** |
| 22 | * This class handles the incoming messages when HdmiCecService is in the standby mode. |
| 23 | */ |
| 24 | public final class HdmiCecStandbyModeHandler { |
| 25 | |
| 26 | private interface CecMessageHandler { |
| 27 | boolean handle(HdmiCecMessage message); |
| 28 | } |
| 29 | |
| 30 | private static final class Bystander implements CecMessageHandler { |
| 31 | @Override |
| 32 | public boolean handle(HdmiCecMessage message) { |
| 33 | return true; |
| 34 | } |
| 35 | } |
| 36 | |
| 37 | private static final class Bypasser implements CecMessageHandler { |
| 38 | @Override |
| 39 | public boolean handle(HdmiCecMessage message) { |
| 40 | return false; |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | private final class Aborter implements CecMessageHandler { |
| 45 | private final int mReason; |
| 46 | public Aborter(int reason) { |
| 47 | mReason = reason; |
| 48 | } |
| 49 | @Override |
| 50 | public boolean handle(HdmiCecMessage message) { |
Yuncheol Heo | 6aae652 | 2014-08-05 14:48:37 +0900 | [diff] [blame] | 51 | mService.maySendFeatureAbortCommand(message, mReason); |
Yuncheol Heo | 25c2029 | 2014-07-31 17:59:39 +0900 | [diff] [blame] | 52 | return true; |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | private final class AutoOnHandler implements CecMessageHandler { |
| 57 | @Override |
| 58 | public boolean handle(HdmiCecMessage message) { |
| 59 | if (!mTv.getAutoWakeup()) { |
| 60 | mAborterRefused.handle(message); |
| 61 | return true; |
| 62 | } |
| 63 | return false; |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | private final class UserControlProcessedHandler implements CecMessageHandler { |
| 68 | @Override |
| 69 | public boolean handle(HdmiCecMessage message) { |
| 70 | // The power status here is always standby. |
| 71 | if (HdmiCecLocalDevice.isPowerOnOrToggleCommand(message)) { |
| 72 | return false; |
| 73 | } else if (HdmiCecLocalDevice.isPowerOffOrToggleCommand(message)) { |
| 74 | return true; |
| 75 | } |
| 76 | return mAborterIncorrectMode.handle(message); |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | private final HdmiControlService mService; |
| 81 | private final HdmiCecLocalDeviceTv mTv; |
| 82 | |
| 83 | private final SparseArray<CecMessageHandler> mCecMessageHandlers = new SparseArray<>(); |
| 84 | private final CecMessageHandler mDefaultHandler = new Aborter( |
| 85 | Constants.ABORT_UNRECOGNIZED_OPCODE); |
| 86 | private final CecMessageHandler mAborterIncorrectMode = new Aborter( |
| 87 | Constants.ABORT_NOT_IN_CORRECT_MODE); |
| 88 | private final CecMessageHandler mAborterRefused = new Aborter(Constants.ABORT_REFUSED); |
| 89 | private final CecMessageHandler mAutoOnHandler = new AutoOnHandler(); |
| 90 | private final CecMessageHandler mBypasser = new Bypasser(); |
| 91 | private final CecMessageHandler mBystander = new Bystander(); |
| 92 | private final UserControlProcessedHandler |
| 93 | mUserControlProcessedHandler = new UserControlProcessedHandler(); |
| 94 | |
| 95 | public HdmiCecStandbyModeHandler(HdmiControlService service, HdmiCecLocalDeviceTv tv) { |
| 96 | mService = service; |
| 97 | mTv = tv; |
| 98 | |
| 99 | addHandler(Constants.MESSAGE_IMAGE_VIEW_ON, mAutoOnHandler); |
| 100 | addHandler(Constants.MESSAGE_TEXT_VIEW_ON, mAutoOnHandler); |
| 101 | |
| 102 | addHandler(Constants.MESSAGE_ACTIVE_SOURCE, mBystander); |
| 103 | addHandler(Constants.MESSAGE_REQUEST_ACTIVE_SOURCE, mBystander); |
| 104 | addHandler(Constants.MESSAGE_ROUTING_CHANGE, mBystander); |
| 105 | addHandler(Constants.MESSAGE_ROUTING_INFORMATION, mBystander); |
| 106 | addHandler(Constants.MESSAGE_SET_STREAM_PATH, mBystander); |
| 107 | addHandler(Constants.MESSAGE_STANDBY, mBystander); |
| 108 | addHandler(Constants.MESSAGE_SET_MENU_LANGUAGE, mBystander); |
| 109 | addHandler(Constants.MESSAGE_DEVICE_VENDOR_ID, mBystander); |
| 110 | addHandler(Constants.MESSAGE_USER_CONTROL_RELEASED, mBystander); |
| 111 | addHandler(Constants.MESSAGE_REPORT_POWER_STATUS, mBystander); |
| 112 | addHandler(Constants.MESSAGE_FEATURE_ABORT, mBystander); |
| 113 | addHandler(Constants.MESSAGE_INACTIVE_SOURCE, mBystander); |
| 114 | addHandler(Constants.MESSAGE_SYSTEM_AUDIO_MODE_STATUS, mBystander); |
| 115 | addHandler(Constants.MESSAGE_REPORT_AUDIO_STATUS, mBystander); |
| 116 | |
| 117 | // If TV supports the following messages during power-on, ignore them and do nothing, |
| 118 | // else reply with <Feature Abort>["Unrecognized Opcode"] |
| 119 | // <Deck Status>, <Tuner Device Status>, <Tuner Cleared Status>, <Timer Status> |
| 120 | addHandler(Constants.MESSAGE_RECORD_STATUS, mBystander); |
| 121 | |
| 122 | // If TV supports the following messages during power-on, reply with <Feature Abort>["Not |
| 123 | // in correct mode to respond"], else reply with <Feature Abort>["Unrecognized Opcode"] |
| 124 | // <Give Tuner Device Status>, <Select Digital Service>, <Tuner Step Decrement>, |
| 125 | // <Tuner Stem Increment>, <Menu Status>. |
| 126 | addHandler(Constants.MESSAGE_RECORD_TV_SCREEN, mAborterIncorrectMode); |
| 127 | addHandler(Constants.MESSAGE_INITIATE_ARC, mAborterIncorrectMode); |
| 128 | addHandler(Constants.MESSAGE_TERMINATE_ARC, mAborterIncorrectMode); |
| 129 | |
| 130 | addHandler(Constants.MESSAGE_GIVE_PHYSICAL_ADDRESS, mBypasser); |
| 131 | addHandler(Constants.MESSAGE_GET_MENU_LANGUAGE, mBypasser); |
| 132 | addHandler(Constants.MESSAGE_REPORT_PHYSICAL_ADDRESS, mBypasser); |
| 133 | addHandler(Constants.MESSAGE_GIVE_DEVICE_VENDOR_ID, mBypasser); |
| 134 | addHandler(Constants.MESSAGE_GIVE_OSD_NAME, mBypasser); |
| 135 | addHandler(Constants.MESSAGE_SET_OSD_NAME, mBypasser); |
| 136 | |
| 137 | addHandler(Constants.MESSAGE_USER_CONTROL_PRESSED, mUserControlProcessedHandler); |
| 138 | |
| 139 | addHandler(Constants.MESSAGE_GIVE_DEVICE_POWER_STATUS, mBypasser); |
| 140 | addHandler(Constants.MESSAGE_ABORT, mBypasser); |
| 141 | addHandler(Constants.MESSAGE_GET_CEC_VERSION, mBypasser); |
| 142 | |
| 143 | addHandler(Constants.MESSAGE_VENDOR_COMMAND_WITH_ID, mAborterIncorrectMode); |
| 144 | addHandler(Constants.MESSAGE_SET_SYSTEM_AUDIO_MODE, mAborterIncorrectMode); |
| 145 | } |
| 146 | |
| 147 | private void addHandler(int opcode, CecMessageHandler handler) { |
| 148 | mCecMessageHandlers.put(opcode, handler); |
| 149 | } |
| 150 | |
| 151 | /** |
| 152 | * Handles the CEC message in the standby mode. |
| 153 | * |
| 154 | * @param message {@link HdmiCecMessage} to be processed |
| 155 | * @return true if the message is handled in the handler, false means that the message is need |
| 156 | * to be dispatched to the local device. |
| 157 | */ |
| 158 | boolean handleCommand(HdmiCecMessage message) { |
| 159 | CecMessageHandler handler = mCecMessageHandlers.get(message.getOpcode()); |
| 160 | if (handler != null) { |
| 161 | return handler.handle(message); |
| 162 | } |
| 163 | return mDefaultHandler.handle(message); |
| 164 | } |
| 165 | } |