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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.server.hdmi;
import com.android.server.hdmi.HdmiControlService.SendMessageCallback;
/**
* Action to initiate system audio once AVR is detected on Device discovery action.
*/
// Seq #27
final class SystemAudioAutoInitiationAction extends HdmiCecFeatureAction {
private final int mAvrAddress;
// State that waits for <System Audio Mode Status> once send
// <Give System Audio Mode Status> to AV Receiver.
private static final int STATE_WAITING_FOR_SYSTEM_AUDIO_MODE_STATUS = 1;
SystemAudioAutoInitiationAction(HdmiCecLocalDevice source, int avrAddress) {
super(source);
mAvrAddress = avrAddress;
}
@Override
boolean start() {
mState = STATE_WAITING_FOR_SYSTEM_AUDIO_MODE_STATUS;
addTimer(mState, HdmiConfig.TIMEOUT_MS);
sendGiveSystemAudioModeStatus();
return true;
}
private void sendGiveSystemAudioModeStatus() {
sendCommand(HdmiCecMessageBuilder.buildGiveSystemAudioModeStatus(getSourceAddress(),
mAvrAddress), new SendMessageCallback() {
@Override
public void onSendCompleted(int error) {
if (error != Constants.SEND_RESULT_SUCCESS) {
tv().setSystemAudioMode(false, true);
finish();
}
}
});
}
@Override
boolean processCommand(HdmiCecMessage cmd) {
if (mState != STATE_WAITING_FOR_SYSTEM_AUDIO_MODE_STATUS) {
return false;
}
switch (cmd.getOpcode()) {
case Constants.MESSAGE_SYSTEM_AUDIO_MODE_STATUS:
handleSystemAudioModeStatusMessage();
return true;
default:
return false;
}
}
private void handleSystemAudioModeStatusMessage() {
// If the last setting is system audio, turn on system audio whatever AVR status is.
if (tv().getSystemAudioModeSetting()) {
if (canChangeSystemAudio()) {
addAndStartAction(new SystemAudioActionFromTv(tv(), mAvrAddress, true, null));
}
} else {
// If the last setting is non-system audio, turn off system audio mode
// and update system audio status (volume or mute).
tv().setSystemAudioMode(false, true);
if (canChangeSystemAudio()) {
addAndStartAction(new SystemAudioStatusAction(tv(), mAvrAddress, null));
}
}
finish();
}
@Override
void handleTimerEvent(int state) {
if (mState != state) {
return;
}
switch (mState) {
case STATE_WAITING_FOR_SYSTEM_AUDIO_MODE_STATUS:
handleSystemAudioModeStatusTimeout();
break;
}
}
private void handleSystemAudioModeStatusTimeout() {
if (tv().getSystemAudioModeSetting()) {
if (canChangeSystemAudio()) {
addAndStartAction(new SystemAudioActionFromTv(tv(), mAvrAddress, true, null));
}
} else {
tv().setSystemAudioMode(false, true);
}
finish();
}
private boolean canChangeSystemAudio() {
return !(tv().hasAction(SystemAudioActionFromTv.class)
|| tv().hasAction(SystemAudioActionFromAvr.class));
}
}
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