| /* |
| * 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 android.annotation.Nullable; |
| import android.hardware.hdmi.HdmiControlManager; |
| import android.hardware.hdmi.IHdmiControlCallback; |
| import android.os.RemoteException; |
| import android.util.Slog; |
| |
| import com.android.server.hdmi.HdmiControlService.SendMessageCallback; |
| |
| /** |
| * Action to update audio status (volume or mute) of audio amplifier |
| */ |
| final class SystemAudioStatusAction extends HdmiCecFeatureAction { |
| private static final String TAG = "SystemAudioStatusAction"; |
| |
| // State that waits for <ReportAudioStatus>. |
| private static final int STATE_WAIT_FOR_REPORT_AUDIO_STATUS = 1; |
| |
| private final int mAvrAddress; |
| @Nullable private final IHdmiControlCallback mCallback; |
| |
| SystemAudioStatusAction(HdmiCecLocalDevice source, int avrAddress, |
| IHdmiControlCallback callback) { |
| super(source); |
| mAvrAddress = avrAddress; |
| mCallback = callback; |
| } |
| |
| @Override |
| boolean start() { |
| mState = STATE_WAIT_FOR_REPORT_AUDIO_STATUS; |
| addTimer(mState, HdmiConfig.TIMEOUT_MS); |
| sendGiveAudioStatus(); |
| return true; |
| } |
| |
| private void sendGiveAudioStatus() { |
| sendCommand(HdmiCecMessageBuilder.buildGiveAudioStatus(getSourceAddress(), mAvrAddress), |
| new SendMessageCallback() { |
| @Override |
| public void onSendCompleted(int error) { |
| if (error != Constants.SEND_RESULT_SUCCESS) { |
| handleSendGiveAudioStatusFailure(); |
| } |
| } |
| }); |
| } |
| |
| private void handleSendGiveAudioStatusFailure() { |
| // Inform to all application that the audio status (volumn, mute) of |
| // the audio amplifier is unknown. |
| tv().setAudioStatus(false, Constants.UNKNOWN_VOLUME); |
| |
| int uiCommand = tv().isSystemAudioActivated() |
| ? HdmiCecKeycode.CEC_KEYCODE_RESTORE_VOLUME_FUNCTION // SystemAudioMode: ON |
| : HdmiCecKeycode.CEC_KEYCODE_MUTE_FUNCTION; // SystemAudioMode: OFF |
| sendUserControlPressedAndReleased(mAvrAddress, uiCommand); |
| |
| // Still return SUCCESS to callback. |
| finishWithCallback(HdmiControlManager.RESULT_SUCCESS); |
| } |
| |
| @Override |
| boolean processCommand(HdmiCecMessage cmd) { |
| if (mState != STATE_WAIT_FOR_REPORT_AUDIO_STATUS || mAvrAddress != cmd.getSource()) { |
| return false; |
| } |
| |
| switch (cmd.getOpcode()) { |
| case Constants.MESSAGE_REPORT_AUDIO_STATUS: |
| handleReportAudioStatus(cmd); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| private void handleReportAudioStatus(HdmiCecMessage cmd) { |
| byte[] params = cmd.getParams(); |
| boolean mute = (params[0] & 0x80) == 0x80; |
| int volume = params[0] & 0x7F; |
| tv().setAudioStatus(mute, volume); |
| |
| if (!(tv().isSystemAudioActivated() ^ mute)) { |
| // Toggle AVR's mute status to match with the system audio status. |
| sendUserControlPressedAndReleased(mAvrAddress, HdmiCecKeycode.CEC_KEYCODE_MUTE); |
| } |
| finishWithCallback(HdmiControlManager.RESULT_SUCCESS); |
| } |
| |
| private void finishWithCallback(int returnCode) { |
| if (mCallback != null) { |
| try { |
| mCallback.onComplete(returnCode); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Failed to invoke callback.", e); |
| } |
| } |
| finish(); |
| } |
| |
| @Override |
| void handleTimerEvent(int state) { |
| if (mState != state) { |
| return; |
| } |
| |
| handleSendGiveAudioStatusFailure(); |
| } |
| } |