HdmiCecLocalDevicePlayback.java revision 4fc1d105fc279bf7df6c876e160672866bdad8e7 
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.HdmiCecDeviceInfo;
20import android.hardware.hdmi.HdmiControlManager;
21import android.hardware.hdmi.IHdmiControlCallback;
22import android.os.RemoteException;
23import android.util.Slog;
24
25import com.android.server.hdmi.HdmiAnnotations.ServiceThreadOnly;
26
27/**
28 * Represent a logical device of type Playback residing in Android system.
29 */
30final class HdmiCecLocalDevicePlayback extends HdmiCecLocalDevice {
31    private static final String TAG = "HdmiCecLocalDevicePlayback";
32
33    private boolean mIsActiveSource = false;
34
35    HdmiCecLocalDevicePlayback(HdmiControlService service) {
36        super(service, HdmiCecDeviceInfo.DEVICE_PLAYBACK);
37    }
38
39    @Override
40    @ServiceThreadOnly
41    protected void onAddressAllocated(int logicalAddress) {
42        assertRunOnServiceThread();
43        mService.sendCecCommand(HdmiCecMessageBuilder.buildReportPhysicalAddressCommand(
44                mAddress, mService.getPhysicalAddress(), mDeviceType));
45    }
46
47    @ServiceThreadOnly
48    void oneTouchPlay(IHdmiControlCallback callback) {
49        assertRunOnServiceThread();
50        if (hasAction(OneTouchPlayAction.class)) {
51            Slog.w(TAG, "oneTouchPlay already in progress");
52            invokeCallback(callback, HdmiControlManager.RESULT_ALREADY_IN_PROGRESS);
53            return;
54        }
55
56        // TODO: Consider the case of multiple TV sets. For now we always direct the command
57        //       to the primary one.
58        OneTouchPlayAction action = OneTouchPlayAction.create(this, Constants.ADDR_TV,
59                callback);
60        if (action == null) {
61            Slog.w(TAG, "Cannot initiate oneTouchPlay");
62            invokeCallback(callback, HdmiControlManager.RESULT_EXCEPTION);
63            return;
64        }
65        addAndStartAction(action);
66    }
67
68    @ServiceThreadOnly
69    void queryDisplayStatus(IHdmiControlCallback callback) {
70        assertRunOnServiceThread();
71        if (hasAction(DevicePowerStatusAction.class)) {
72            Slog.w(TAG, "queryDisplayStatus already in progress");
73            invokeCallback(callback, HdmiControlManager.RESULT_ALREADY_IN_PROGRESS);
74            return;
75        }
76        DevicePowerStatusAction action = DevicePowerStatusAction.create(this,
77                Constants.ADDR_TV, callback);
78        if (action == null) {
79            Slog.w(TAG, "Cannot initiate queryDisplayStatus");
80            invokeCallback(callback, HdmiControlManager.RESULT_EXCEPTION);
81            return;
82        }
83        addAndStartAction(action);
84    }
85
86    @ServiceThreadOnly
87    private void invokeCallback(IHdmiControlCallback callback, int result) {
88        assertRunOnServiceThread();
89        try {
90            callback.onComplete(result);
91        } catch (RemoteException e) {
92            Slog.e(TAG, "Invoking callback failed:" + e);
93        }
94    }
95
96    @Override
97    @ServiceThreadOnly
98    void onHotplug(int portId, boolean connected) {
99        assertRunOnServiceThread();
100        mCecMessageCache.flushAll();
101        mIsActiveSource = false;
102        if (connected && mService.isPowerStandbyOrTransient()) {
103            mService.wakeUp();
104        }
105    }
106
107    @ServiceThreadOnly
108    void markActiveSource() {
109        assertRunOnServiceThread();
110        mIsActiveSource = true;
111    }
112
113    @Override
114    @ServiceThreadOnly
115    protected boolean handleActiveSource(HdmiCecMessage message) {
116        assertRunOnServiceThread();
117        int physicalAddress = HdmiUtils.twoBytesToInt(message.getParams());
118        if (physicalAddress != mService.getPhysicalAddress()) {
119            mIsActiveSource = false;
120            if (mService.isPowerOnOrTransient()) {
121                mService.standby();
122            }
123            return true;
124        }
125        return false;
126    }
127
128    @Override
129    @ServiceThreadOnly
130    protected boolean handleSetStreamPath(HdmiCecMessage message) {
131        assertRunOnServiceThread();
132        int physicalAddress = HdmiUtils.twoBytesToInt(message.getParams());
133        if (physicalAddress == mService.getPhysicalAddress()) {
134            if (mService.isPowerStandbyOrTransient()) {
135                mService.wakeUp();
136            }
137            return true;
138        }
139        return false;
140    }
141
142    @Override
143    @ServiceThreadOnly
144    protected void disableDevice(boolean initiatedByCec, PendingActionClearedCallback callback) {
145        super.disableDevice(initiatedByCec, callback);
146
147        assertRunOnServiceThread();
148        if (!initiatedByCec && mIsActiveSource) {
149            mService.sendCecCommand(HdmiCecMessageBuilder.buildInactiveSource(
150                    mAddress, mService.getPhysicalAddress()));
151        }
152        mIsActiveSource = false;
153        checkIfPendingActionsCleared();
154    }
155}
156