| /* |
| * 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.IHdmiControlCallback; |
| import android.hardware.hdmi.HdmiDeviceInfo; |
| import android.hardware.hdmi.HdmiControlManager; |
| import android.os.RemoteException; |
| import android.util.Slog; |
| |
| import com.android.server.hdmi.HdmiCecLocalDevice.ActiveSource; |
| |
| /** |
| * Handles CEC command <Active Source>. |
| * <p> |
| * Used by feature actions that need to handle the command in their flow. Only for TV |
| * local device. |
| */ |
| final class ActiveSourceHandler { |
| private static final String TAG = "ActiveSourceHandler"; |
| |
| private final HdmiCecLocalDeviceTv mSource; |
| private final HdmiControlService mService; |
| @Nullable |
| private final IHdmiControlCallback mCallback; |
| |
| static ActiveSourceHandler create(HdmiCecLocalDeviceTv source, IHdmiControlCallback callback) { |
| if (source == null) { |
| Slog.e(TAG, "Wrong arguments"); |
| return null; |
| } |
| return new ActiveSourceHandler(source, callback); |
| } |
| |
| private ActiveSourceHandler(HdmiCecLocalDeviceTv source, IHdmiControlCallback callback) { |
| mSource = source; |
| mService = mSource.getService(); |
| mCallback = callback; |
| } |
| |
| /** |
| * Handles the incoming active source command. |
| * |
| * @param newActive new active source information |
| * @param deviceType device type of the new active source |
| */ |
| void process(ActiveSource newActive, int deviceType) { |
| // Seq #17 |
| HdmiCecLocalDeviceTv tv = mSource; |
| HdmiDeviceInfo device = mService.getDeviceInfo(newActive.logicalAddress); |
| if (device == null) { |
| tv.startNewDeviceAction(newActive, deviceType); |
| } |
| |
| if (!tv.isProhibitMode()) { |
| ActiveSource old = ActiveSource.of(tv.getActiveSource()); |
| tv.updateActiveSource(newActive); |
| boolean notifyInputChange = (mCallback == null); |
| if (!old.equals(newActive)) { |
| tv.setPrevPortId(tv.getActivePortId()); |
| } |
| tv.updateActiveInput(newActive.physicalAddress, notifyInputChange); |
| invokeCallback(HdmiControlManager.RESULT_SUCCESS); |
| } else { |
| // TV is in a mode that should keep its current source/input from |
| // being changed for its operation. Reclaim the active source |
| // or switch the port back to the one used for the current mode. |
| ActiveSource current = tv.getActiveSource(); |
| if (current.logicalAddress == getSourceAddress()) { |
| HdmiCecMessage activeSourceCommand = HdmiCecMessageBuilder.buildActiveSource( |
| current.logicalAddress, current.physicalAddress); |
| mService.sendCecCommand(activeSourceCommand); |
| tv.updateActiveSource(current); |
| invokeCallback(HdmiControlManager.RESULT_SUCCESS); |
| } else { |
| tv.startRoutingControl(newActive.physicalAddress, current.physicalAddress, true, |
| mCallback); |
| } |
| } |
| } |
| |
| private final int getSourceAddress() { |
| return mSource.getDeviceInfo().getLogicalAddress(); |
| } |
| |
| private void invokeCallback(int result) { |
| if (mCallback == null) { |
| return; |
| } |
| try { |
| mCallback.onComplete(result); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Callback failed:" + e); |
| } |
| } |
| } |