| /* |
| * 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.HdmiCecDeviceInfo; |
| import android.hardware.hdmi.HdmiControlManager; |
| import android.os.RemoteException; |
| import android.util.Slog; |
| |
| /** |
| * 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 activeAddress logical address of the device to be the active source |
| * @param activePath routing path of the device to be the active source |
| */ |
| void process(int activeAddress, int activePath) { |
| // Seq #17 |
| HdmiCecLocalDeviceTv tv = mSource; |
| if (getSourcePath() == activePath && tv.getActiveSource() == getSourceAddress()) { |
| invokeCallback(HdmiControlManager.RESULT_SUCCESS); |
| return; |
| } |
| HdmiCecDeviceInfo device = mService.getDeviceInfo(activeAddress); |
| if (device == null) { |
| tv.startNewDeviceAction(activeAddress, activePath); |
| } |
| |
| int currentActive = tv.getActiveSource(); |
| int currentPath = tv.getActivePath(); |
| if (!tv.isProhibitMode()) { |
| tv.updateActiveSource(activeAddress, activePath); |
| if (currentActive != activeAddress && currentPath != activePath) { |
| tv.updateActivePortId(mService.pathToPortId(activePath)); |
| } |
| 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. |
| if (currentActive == getSourceAddress()) { |
| HdmiCecMessage activeSource = |
| HdmiCecMessageBuilder.buildActiveSource(currentActive, currentPath); |
| mService.sendCecCommand(activeSource); |
| tv.updateActiveSource(currentActive, currentPath); |
| invokeCallback(HdmiControlManager.RESULT_SUCCESS); |
| } else { |
| HdmiCecMessage routingChange = HdmiCecMessageBuilder.buildRoutingChange( |
| getSourceAddress(), activePath, currentPath); |
| mService.sendCecCommand(routingChange); |
| tv.addAndStartAction(new RoutingControlAction(tv, currentPath, true, mCallback)); |
| } |
| } |
| } |
| |
| private final int getSourceAddress() { |
| return mSource.getDeviceInfo().getLogicalAddress(); |
| } |
| |
| private final int getSourcePath() { |
| return mSource.getDeviceInfo().getPhysicalAddress(); |
| } |
| |
| private void invokeCallback(int result) { |
| if (mCallback == null) { |
| return; |
| } |
| try { |
| mCallback.onComplete(result); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Callback failed:" + e); |
| } |
| } |
| } |