TvInputHardwareManager.java revision fe9259e6a78ceb08efc43e8bca4981ee18a0a0ef
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.tv; 18 19import static android.media.tv.TvInputManager.INPUT_STATE_CONNECTED; 20import static android.media.tv.TvInputManager.INPUT_STATE_DISCONNECTED; 21 22import android.content.Context; 23import android.hardware.hdmi.HdmiCecDeviceInfo; 24import android.hardware.hdmi.HdmiHotplugEvent; 25import android.hardware.hdmi.IHdmiControlService; 26import android.hardware.hdmi.IHdmiDeviceEventListener; 27import android.hardware.hdmi.IHdmiHotplugEventListener; 28import android.hardware.hdmi.IHdmiInputChangeListener; 29import android.media.AudioDevicePort; 30import android.media.AudioManager; 31import android.media.AudioPatch; 32import android.media.AudioPort; 33import android.media.AudioPortConfig; 34import android.media.tv.ITvInputHardware; 35import android.media.tv.ITvInputHardwareCallback; 36import android.media.tv.TvInputHardwareInfo; 37import android.media.tv.TvInputInfo; 38import android.media.tv.TvStreamConfig; 39import android.os.Handler; 40import android.os.IBinder; 41import android.os.Looper; 42import android.os.Message; 43import android.os.RemoteException; 44import android.os.ServiceManager; 45import android.util.ArrayMap; 46import android.util.Slog; 47import android.util.SparseArray; 48import android.util.SparseBooleanArray; 49import android.view.KeyEvent; 50import android.view.Surface; 51 52import com.android.server.SystemService; 53 54import java.util.ArrayList; 55import java.util.Collections; 56import java.util.HashSet; 57import java.util.List; 58import java.util.Map; 59import java.util.Set; 60 61/** 62 * A helper class for TvInputManagerService to handle TV input hardware. 63 * 64 * This class does a basic connection management and forwarding calls to TvInputHal which eventually 65 * calls to tv_input HAL module. 66 * 67 * @hide 68 */ 69class TvInputHardwareManager implements TvInputHal.Callback { 70 private static final String TAG = TvInputHardwareManager.class.getSimpleName(); 71 72 private final Context mContext; 73 private final Listener mListener; 74 private final TvInputHal mHal = new TvInputHal(this); 75 private final SparseArray<Connection> mConnections = new SparseArray<Connection>(); 76 private final List<TvInputHardwareInfo> mInfoList = new ArrayList<TvInputHardwareInfo>(); 77 /* A map from a device ID to the matching TV input ID. */ 78 private final SparseArray<String> mHardwareInputIdMap = new SparseArray<String>(); 79 /* A map from a HDMI logical address to the matching TV input ID. */ 80 private final SparseArray<String> mHdmiCecInputIdMap = new SparseArray<String>(); 81 private final Map<String, TvInputInfo> mInputMap = new ArrayMap<String, TvInputInfo>(); 82 83 private final AudioManager mAudioManager; 84 private IHdmiControlService mHdmiControlService; 85 private final IHdmiHotplugEventListener mHdmiHotplugEventListener = 86 new HdmiHotplugEventListener(); 87 private final IHdmiDeviceEventListener mHdmiDeviceEventListener = new HdmiDeviceEventListener(); 88 private final IHdmiInputChangeListener mHdmiInputChangeListener = new HdmiInputChangeListener(); 89 private final Set<Integer> mActiveHdmiSources = new HashSet<Integer>(); 90 // TODO: Should handle INACTIVE case. 91 private final SparseBooleanArray mHdmiStateMap = new SparseBooleanArray(); 92 93 // Calls to mListener should happen here. 94 private final Handler mHandler = new ListenerHandler(); 95 96 private final Object mLock = new Object(); 97 98 public TvInputHardwareManager(Context context, Listener listener) { 99 mContext = context; 100 mListener = listener; 101 mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); 102 mHal.init(); 103 } 104 105 public void onBootPhase(int phase) { 106 if (phase == SystemService.PHASE_SYSTEM_SERVICES_READY) { 107 mHdmiControlService = IHdmiControlService.Stub.asInterface(ServiceManager.getService( 108 Context.HDMI_CONTROL_SERVICE)); 109 if (mHdmiControlService != null) { 110 try { 111 mHdmiControlService.addHotplugEventListener(mHdmiHotplugEventListener); 112 mHdmiControlService.addDeviceEventListener(mHdmiDeviceEventListener); 113 mHdmiControlService.setInputChangeListener(mHdmiInputChangeListener); 114 } catch (RemoteException e) { 115 Slog.w(TAG, "Error registering listeners to HdmiControlService:", e); 116 } 117 } 118 } 119 } 120 121 @Override 122 public void onDeviceAvailable(TvInputHardwareInfo info, TvStreamConfig[] configs) { 123 synchronized (mLock) { 124 Connection connection = new Connection(info); 125 connection.updateConfigsLocked(configs); 126 mConnections.put(info.getDeviceId(), connection); 127 buildInfoListLocked(); 128 mHandler.obtainMessage( 129 ListenerHandler.HARDWARE_DEVICE_ADDED, 0, 0, info).sendToTarget(); 130 } 131 } 132 133 private void buildInfoListLocked() { 134 mInfoList.clear(); 135 for (int i = 0; i < mConnections.size(); ++i) { 136 mInfoList.add(mConnections.valueAt(i).getHardwareInfoLocked()); 137 } 138 } 139 140 @Override 141 public void onDeviceUnavailable(int deviceId) { 142 synchronized (mLock) { 143 Connection connection = mConnections.get(deviceId); 144 if (connection == null) { 145 Slog.e(TAG, "onDeviceUnavailable: Cannot find a connection with " + deviceId); 146 return; 147 } 148 connection.resetLocked(null, null, null, null, null); 149 mConnections.remove(deviceId); 150 buildInfoListLocked(); 151 TvInputHardwareInfo info = connection.getHardwareInfoLocked(); 152 mHandler.obtainMessage( 153 ListenerHandler.HARDWARE_DEVICE_REMOVED, 0, 0, info).sendToTarget(); 154 } 155 } 156 157 @Override 158 public void onStreamConfigurationChanged(int deviceId, TvStreamConfig[] configs) { 159 synchronized (mLock) { 160 Connection connection = mConnections.get(deviceId); 161 if (connection == null) { 162 Slog.e(TAG, "StreamConfigurationChanged: Cannot find a connection with " 163 + deviceId); 164 return; 165 } 166 connection.updateConfigsLocked(configs); 167 try { 168 connection.getCallbackLocked().onStreamConfigChanged(configs); 169 } catch (RemoteException e) { 170 Slog.e(TAG, "error in onStreamConfigurationChanged", e); 171 } 172 } 173 } 174 175 public List<TvInputHardwareInfo> getHardwareList() { 176 synchronized (mLock) { 177 return mInfoList; 178 } 179 } 180 181 public List<HdmiCecDeviceInfo> getHdmiCecInputDeviceList() { 182 if (mHdmiControlService != null) { 183 try { 184 return mHdmiControlService.getInputDevices(); 185 } catch (RemoteException e) { 186 Slog.e(TAG, "error in getHdmiCecInputDeviceList", e); 187 } 188 } 189 return Collections.emptyList(); 190 } 191 192 private boolean checkUidChangedLocked( 193 Connection connection, int callingUid, int resolvedUserId) { 194 Integer connectionCallingUid = connection.getCallingUidLocked(); 195 Integer connectionResolvedUserId = connection.getResolvedUserIdLocked(); 196 if (connectionCallingUid == null || connectionResolvedUserId == null) { 197 return true; 198 } 199 if (connectionCallingUid != callingUid || connectionResolvedUserId != resolvedUserId) { 200 return true; 201 } 202 return false; 203 } 204 205 private int convertConnectedToState(boolean connected) { 206 if (connected) { 207 return INPUT_STATE_CONNECTED; 208 } else { 209 return INPUT_STATE_DISCONNECTED; 210 } 211 } 212 213 public void addHardwareTvInput(int deviceId, TvInputInfo info) { 214 synchronized (mLock) { 215 String oldInputId = mHardwareInputIdMap.get(deviceId); 216 if (oldInputId != null) { 217 Slog.w(TAG, "Trying to override previous registration: old = " 218 + mInputMap.get(oldInputId) + ":" + deviceId + ", new = " 219 + info + ":" + deviceId); 220 } 221 mHardwareInputIdMap.put(deviceId, info.getId()); 222 mInputMap.put(info.getId(), info); 223 224 for (int i = 0; i < mHdmiStateMap.size(); ++i) { 225 String inputId = findInputIdForHdmiPortLocked(mHdmiStateMap.keyAt(i)); 226 if (inputId != null && inputId.equals(info.getId())) { 227 mHandler.obtainMessage(ListenerHandler.STATE_CHANGED, 228 convertConnectedToState(mHdmiStateMap.valueAt(i)), 0, 229 inputId).sendToTarget(); 230 } 231 } 232 } 233 } 234 235 private static <T> int indexOfEqualValue(SparseArray<T> map, T value) { 236 for (int i = 0; i < map.size(); ++i) { 237 if (map.valueAt(i).equals(value)) { 238 return i; 239 } 240 } 241 return -1; 242 } 243 244 public void addHdmiCecTvInput(int logicalAddress, TvInputInfo info) { 245 if (info.getType() != TvInputInfo.TYPE_HDMI) { 246 throw new IllegalArgumentException("info (" + info + ") has non-HDMI type."); 247 } 248 synchronized (mLock) { 249 String parentId = info.getParentId(); 250 int parentIndex = indexOfEqualValue(mHardwareInputIdMap, parentId); 251 if (parentIndex < 0) { 252 throw new IllegalArgumentException("info (" + info + ") has invalid parentId."); 253 } 254 String oldInputId = mHdmiCecInputIdMap.get(logicalAddress); 255 if (oldInputId != null) { 256 Slog.w(TAG, "Trying to override previous registration: old = " 257 + mInputMap.get(oldInputId) + ":" + logicalAddress + ", new = " 258 + info + ":" + logicalAddress); 259 } 260 mHdmiCecInputIdMap.put(logicalAddress, info.getId()); 261 mInputMap.put(info.getId(), info); 262 } 263 } 264 265 public void removeTvInput(String inputId) { 266 synchronized (mLock) { 267 mInputMap.remove(inputId); 268 int hardwareIndex = indexOfEqualValue(mHardwareInputIdMap, inputId); 269 if (hardwareIndex >= 0) { 270 mHardwareInputIdMap.removeAt(hardwareIndex); 271 } 272 int cecIndex = indexOfEqualValue(mHdmiCecInputIdMap, inputId); 273 if (cecIndex >= 0) { 274 mHdmiCecInputIdMap.removeAt(cecIndex); 275 } 276 } 277 } 278 279 /** 280 * Create a TvInputHardware object with a specific deviceId. One service at a time can access 281 * the object, and if more than one process attempts to create hardware with the same deviceId, 282 * the latest service will get the object and all the other hardware are released. The 283 * release is notified via ITvInputHardwareCallback.onReleased(). 284 */ 285 public ITvInputHardware acquireHardware(int deviceId, ITvInputHardwareCallback callback, 286 TvInputInfo info, int callingUid, int resolvedUserId) { 287 if (callback == null) { 288 throw new NullPointerException(); 289 } 290 synchronized (mLock) { 291 Connection connection = mConnections.get(deviceId); 292 if (connection == null) { 293 Slog.e(TAG, "Invalid deviceId : " + deviceId); 294 return null; 295 } 296 if (checkUidChangedLocked(connection, callingUid, resolvedUserId)) { 297 TvInputHardwareImpl hardware = 298 new TvInputHardwareImpl(connection.getHardwareInfoLocked()); 299 try { 300 callback.asBinder().linkToDeath(connection, 0); 301 } catch (RemoteException e) { 302 hardware.release(); 303 return null; 304 } 305 connection.resetLocked(hardware, callback, info, callingUid, resolvedUserId); 306 } 307 return connection.getHardwareLocked(); 308 } 309 } 310 311 /** 312 * Release the specified hardware. 313 */ 314 public void releaseHardware(int deviceId, ITvInputHardware hardware, int callingUid, 315 int resolvedUserId) { 316 synchronized (mLock) { 317 Connection connection = mConnections.get(deviceId); 318 if (connection == null) { 319 Slog.e(TAG, "Invalid deviceId : " + deviceId); 320 return; 321 } 322 if (connection.getHardwareLocked() != hardware 323 || checkUidChangedLocked(connection, callingUid, resolvedUserId)) { 324 return; 325 } 326 connection.resetLocked(null, null, null, null, null); 327 } 328 } 329 330 private String findInputIdForHdmiPortLocked(int port) { 331 for (TvInputHardwareInfo hardwareInfo : mInfoList) { 332 if (hardwareInfo.getType() == TvInputHardwareInfo.TV_INPUT_TYPE_HDMI 333 && hardwareInfo.getHdmiPortId() == port) { 334 return mHardwareInputIdMap.get(hardwareInfo.getDeviceId()); 335 } 336 } 337 return null; 338 } 339 340 private class Connection implements IBinder.DeathRecipient { 341 private final TvInputHardwareInfo mHardwareInfo; 342 private TvInputInfo mInfo; 343 private TvInputHardwareImpl mHardware = null; 344 private ITvInputHardwareCallback mCallback; 345 private TvStreamConfig[] mConfigs = null; 346 private Integer mCallingUid = null; 347 private Integer mResolvedUserId = null; 348 349 public Connection(TvInputHardwareInfo hardwareInfo) { 350 mHardwareInfo = hardwareInfo; 351 } 352 353 // *Locked methods assume TvInputHardwareManager.mLock is held. 354 355 public void resetLocked(TvInputHardwareImpl hardware, ITvInputHardwareCallback callback, 356 TvInputInfo info, Integer callingUid, Integer resolvedUserId) { 357 if (mHardware != null) { 358 try { 359 mCallback.onReleased(); 360 } catch (RemoteException e) { 361 Slog.e(TAG, "error in Connection::resetLocked", e); 362 } 363 mHardware.release(); 364 } 365 mHardware = hardware; 366 mCallback = callback; 367 mInfo = info; 368 mCallingUid = callingUid; 369 mResolvedUserId = resolvedUserId; 370 371 if (mHardware != null && mCallback != null) { 372 try { 373 mCallback.onStreamConfigChanged(getConfigsLocked()); 374 } catch (RemoteException e) { 375 Slog.e(TAG, "error in Connection::resetLocked", e); 376 } 377 } 378 } 379 380 public void updateConfigsLocked(TvStreamConfig[] configs) { 381 mConfigs = configs; 382 } 383 384 public TvInputHardwareInfo getHardwareInfoLocked() { 385 return mHardwareInfo; 386 } 387 388 public TvInputInfo getInfoLocked() { 389 return mInfo; 390 } 391 392 public ITvInputHardware getHardwareLocked() { 393 return mHardware; 394 } 395 396 public ITvInputHardwareCallback getCallbackLocked() { 397 return mCallback; 398 } 399 400 public TvStreamConfig[] getConfigsLocked() { 401 return mConfigs; 402 } 403 404 public Integer getCallingUidLocked() { 405 return mCallingUid; 406 } 407 408 public Integer getResolvedUserIdLocked() { 409 return mResolvedUserId; 410 } 411 412 @Override 413 public void binderDied() { 414 synchronized (mLock) { 415 resetLocked(null, null, null, null, null); 416 } 417 } 418 } 419 420 private class TvInputHardwareImpl extends ITvInputHardware.Stub { 421 private final TvInputHardwareInfo mInfo; 422 private boolean mReleased = false; 423 private final Object mImplLock = new Object(); 424 425 private final AudioDevicePort mAudioSource; 426 private final AudioDevicePort mAudioSink; 427 private AudioPatch mAudioPatch = null; 428 429 private TvStreamConfig mActiveConfig = null; 430 431 public TvInputHardwareImpl(TvInputHardwareInfo info) { 432 mInfo = info; 433 AudioDevicePort audioSource = null; 434 AudioDevicePort audioSink = null; 435 if (mInfo.getAudioType() != AudioManager.DEVICE_NONE) { 436 ArrayList<AudioPort> devicePorts = new ArrayList<AudioPort>(); 437 if (mAudioManager.listAudioDevicePorts(devicePorts) == AudioManager.SUCCESS) { 438 // Find source 439 for (AudioPort port : devicePorts) { 440 AudioDevicePort devicePort = (AudioDevicePort) port; 441 if (devicePort.type() == mInfo.getAudioType() && 442 devicePort.address().equals(mInfo.getAudioAddress())) { 443 audioSource = devicePort; 444 break; 445 } 446 } 447 // Find sink 448 // TODO: App may want to specify sink device? 449 int sinkDevices = mAudioManager.getDevicesForStream(AudioManager.STREAM_MUSIC); 450 for (AudioPort port : devicePorts) { 451 AudioDevicePort devicePort = (AudioDevicePort) port; 452 if (devicePort.type() == sinkDevices) { 453 audioSink = devicePort; 454 break; 455 } 456 } 457 } 458 } 459 mAudioSource = audioSource; 460 mAudioSink = audioSink; 461 } 462 463 public void release() { 464 synchronized (mImplLock) { 465 if (mAudioPatch != null) { 466 mAudioManager.releaseAudioPatch(mAudioPatch); 467 mAudioPatch = null; 468 } 469 mReleased = true; 470 } 471 } 472 473 // A TvInputHardwareImpl object holds only one active session. Therefore, if a client 474 // attempts to call setSurface with different TvStreamConfig objects, the last call will 475 // prevail. 476 @Override 477 public boolean setSurface(Surface surface, TvStreamConfig config) 478 throws RemoteException { 479 synchronized (mImplLock) { 480 if (mReleased) { 481 throw new IllegalStateException("Device already released."); 482 } 483 if (surface != null && config == null) { 484 return false; 485 } 486 if (surface == null && mActiveConfig == null) { 487 return false; 488 } 489 if (mInfo.getType() == TvInputHardwareInfo.TV_INPUT_TYPE_HDMI) { 490 if (surface != null) { 491 // Set "Active Source" for HDMI. 492 // TODO(hdmi): mHdmiClient.deviceSelect(...); 493 mActiveHdmiSources.add(mInfo.getDeviceId()); 494 } else { 495 mActiveHdmiSources.remove(mInfo.getDeviceId()); 496 if (mActiveHdmiSources.size() == 0) { 497 // Tell HDMI that no HDMI source is active 498 // TODO(hdmi): mHdmiClient.portSelect(null); 499 } 500 } 501 } 502 if (mAudioSource != null && mAudioSink != null) { 503 if (surface != null) { 504 AudioPortConfig sourceConfig = mAudioSource.activeConfig(); 505 AudioPortConfig sinkConfig = mAudioSink.activeConfig(); 506 AudioPatch[] audioPatchArray = new AudioPatch[] { mAudioPatch }; 507 // TODO: build config if activeConfig() == null 508 mAudioManager.createAudioPatch( 509 audioPatchArray, 510 new AudioPortConfig[] { sourceConfig }, 511 new AudioPortConfig[] { sinkConfig }); 512 mAudioPatch = audioPatchArray[0]; 513 } else { 514 mAudioManager.releaseAudioPatch(mAudioPatch); 515 mAudioPatch = null; 516 } 517 } 518 int result = TvInputHal.ERROR_UNKNOWN; 519 if (surface == null) { 520 result = mHal.removeStream(mInfo.getDeviceId(), mActiveConfig); 521 mActiveConfig = null; 522 } else { 523 if (config != mActiveConfig && mActiveConfig != null) { 524 result = mHal.removeStream(mInfo.getDeviceId(), mActiveConfig); 525 if (result != TvInputHal.SUCCESS) { 526 mActiveConfig = null; 527 return false; 528 } 529 } 530 result = mHal.addStream(mInfo.getDeviceId(), surface, config); 531 if (result == TvInputHal.SUCCESS) { 532 mActiveConfig = config; 533 } 534 } 535 return result == TvInputHal.SUCCESS; 536 } 537 } 538 539 @Override 540 public void setVolume(float volume) throws RemoteException { 541 synchronized (mImplLock) { 542 if (mReleased) { 543 throw new IllegalStateException("Device already released."); 544 } 545 } 546 // TODO: Use AudioGain? 547 } 548 549 @Override 550 public boolean dispatchKeyEventToHdmi(KeyEvent event) throws RemoteException { 551 synchronized (mImplLock) { 552 if (mReleased) { 553 throw new IllegalStateException("Device already released."); 554 } 555 } 556 if (mInfo.getType() != TvInputHardwareInfo.TV_INPUT_TYPE_HDMI) { 557 return false; 558 } 559 // TODO(hdmi): mHdmiClient.sendKeyEvent(event); 560 return false; 561 } 562 } 563 564 interface Listener { 565 public void onStateChanged(String inputId, int state); 566 public void onHardwareDeviceAdded(TvInputHardwareInfo info); 567 public void onHardwareDeviceRemoved(TvInputHardwareInfo info); 568 public void onHdmiCecDeviceAdded(HdmiCecDeviceInfo cecDevice); 569 public void onHdmiCecDeviceRemoved(HdmiCecDeviceInfo cecDevice); 570 } 571 572 private class ListenerHandler extends Handler { 573 private static final int STATE_CHANGED = 1; 574 private static final int HARDWARE_DEVICE_ADDED = 2; 575 private static final int HARDWARE_DEVICE_REMOVED = 3; 576 private static final int HDMI_CEC_DEVICE_ADDED = 4; 577 private static final int HDMI_CEC_DEVICE_REMOVED = 5; 578 579 @Override 580 public final void handleMessage(Message msg) { 581 switch (msg.what) { 582 case STATE_CHANGED: { 583 String inputId = (String) msg.obj; 584 int state = msg.arg1; 585 mListener.onStateChanged(inputId, state); 586 break; 587 } 588 case HARDWARE_DEVICE_ADDED: { 589 TvInputHardwareInfo info = (TvInputHardwareInfo) msg.obj; 590 mListener.onHardwareDeviceAdded(info); 591 break; 592 } 593 case HARDWARE_DEVICE_REMOVED: { 594 TvInputHardwareInfo info = (TvInputHardwareInfo) msg.obj; 595 mListener.onHardwareDeviceRemoved(info); 596 break; 597 } 598 case HDMI_CEC_DEVICE_ADDED: { 599 HdmiCecDeviceInfo info = (HdmiCecDeviceInfo) msg.obj; 600 mListener.onHdmiCecDeviceAdded(info); 601 break; 602 } 603 case HDMI_CEC_DEVICE_REMOVED: { 604 HdmiCecDeviceInfo info = (HdmiCecDeviceInfo) msg.obj; 605 mListener.onHdmiCecDeviceRemoved(info); 606 break; 607 } 608 default: { 609 Slog.w(TAG, "Unhandled message: " + msg); 610 break; 611 } 612 } 613 } 614 } 615 616 // Listener implementations for HdmiControlService 617 618 private final class HdmiHotplugEventListener extends IHdmiHotplugEventListener.Stub { 619 @Override 620 public void onReceived(HdmiHotplugEvent event) { 621 synchronized (mLock) { 622 mHdmiStateMap.put(event.getPort(), event.isConnected()); 623 String inputId = findInputIdForHdmiPortLocked(event.getPort()); 624 if (inputId == null) { 625 return; 626 } 627 mHandler.obtainMessage(ListenerHandler.STATE_CHANGED, 628 convertConnectedToState(event.isConnected()), 0, inputId).sendToTarget(); 629 } 630 } 631 } 632 633 private final class HdmiDeviceEventListener extends IHdmiDeviceEventListener.Stub { 634 @Override 635 public void onStatusChanged(HdmiCecDeviceInfo deviceInfo, boolean activated) { 636 mHandler.obtainMessage( 637 activated ? ListenerHandler.HDMI_CEC_DEVICE_ADDED 638 : ListenerHandler.HDMI_CEC_DEVICE_REMOVED, 639 0, 0, deviceInfo).sendToTarget(); 640 } 641 } 642 643 private final class HdmiInputChangeListener extends IHdmiInputChangeListener.Stub { 644 @Override 645 public void onChanged(HdmiCecDeviceInfo device) throws RemoteException { 646 // TODO: Build a channel Uri for the TvInputInfo associated with the logical device 647 // and send an intent to TV app 648 } 649 } 650} 651