TvInputManagerService.java revision 8c375feb686dee8b6e8a9c69100de88c4d61afdc
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_CONNECTED_STANDBY; 21 22import android.app.ActivityManager; 23import android.content.BroadcastReceiver; 24import android.content.ComponentName; 25import android.content.ContentProviderOperation; 26import android.content.ContentProviderResult; 27import android.content.ContentResolver; 28import android.content.ContentUris; 29import android.content.ContentValues; 30import android.content.Context; 31import android.content.Intent; 32import android.content.IntentFilter; 33import android.content.OperationApplicationException; 34import android.content.ServiceConnection; 35import android.content.pm.ActivityInfo; 36import android.content.pm.PackageManager; 37import android.content.pm.PackageManager.NameNotFoundException; 38import android.content.pm.ResolveInfo; 39import android.content.pm.ServiceInfo; 40import android.graphics.Rect; 41import android.hardware.hdmi.HdmiControlManager; 42import android.hardware.hdmi.HdmiDeviceInfo; 43import android.media.PlaybackParams; 44import android.media.tv.DvbDeviceInfo; 45import android.media.tv.ITvInputClient; 46import android.media.tv.ITvInputHardware; 47import android.media.tv.ITvInputHardwareCallback; 48import android.media.tv.ITvInputManager; 49import android.media.tv.ITvInputManagerCallback; 50import android.media.tv.ITvInputService; 51import android.media.tv.ITvInputServiceCallback; 52import android.media.tv.ITvInputSession; 53import android.media.tv.ITvInputSessionCallback; 54import android.media.tv.TvContentRating; 55import android.media.tv.TvContentRatingSystemInfo; 56import android.media.tv.TvContract; 57import android.media.tv.TvInputHardwareInfo; 58import android.media.tv.TvInputInfo; 59import android.media.tv.TvInputManager; 60import android.media.tv.TvInputService; 61import android.media.tv.TvStreamConfig; 62import android.media.tv.TvTrackInfo; 63import android.net.Uri; 64import android.os.Binder; 65import android.os.Bundle; 66import android.os.Handler; 67import android.os.IBinder; 68import android.os.Looper; 69import android.os.Message; 70import android.os.ParcelFileDescriptor; 71import android.os.Process; 72import android.os.RemoteException; 73import android.os.UserHandle; 74import android.util.Slog; 75import android.util.SparseArray; 76import android.view.InputChannel; 77import android.view.Surface; 78 79import com.android.internal.content.PackageMonitor; 80import com.android.internal.os.SomeArgs; 81import com.android.internal.util.IndentingPrintWriter; 82import com.android.server.IoThread; 83import com.android.server.SystemService; 84 85import org.xmlpull.v1.XmlPullParserException; 86 87import java.io.File; 88import java.io.FileDescriptor; 89import java.io.FileNotFoundException; 90import java.io.IOException; 91import java.io.PrintWriter; 92import java.util.ArrayList; 93import java.util.Arrays; 94import java.util.Collections; 95import java.util.HashMap; 96import java.util.HashSet; 97import java.util.Iterator; 98import java.util.List; 99import java.util.Map; 100import java.util.Set; 101import java.util.regex.Matcher; 102import java.util.regex.Pattern; 103 104/** This class provides a system service that manages television inputs. */ 105public final class TvInputManagerService extends SystemService { 106 private static final boolean DEBUG = false; 107 private static final String TAG = "TvInputManagerService"; 108 109 // Pattern for selecting the DVB frontend devices from the list of files in the /dev directory. 110 private static final Pattern sFrontEndDevicePattern = 111 Pattern.compile("^dvb([0-9]+)\\.frontend([0-9]+)$"); 112 113 private final Context mContext; 114 private final TvInputHardwareManager mTvInputHardwareManager; 115 116 // A global lock. 117 private final Object mLock = new Object(); 118 119 // ID of the current user. 120 private int mCurrentUserId = UserHandle.USER_OWNER; 121 122 // A map from user id to UserState. 123 private final SparseArray<UserState> mUserStates = new SparseArray<>(); 124 125 private final WatchLogHandler mWatchLogHandler; 126 127 public TvInputManagerService(Context context) { 128 super(context); 129 130 mContext = context; 131 mWatchLogHandler = new WatchLogHandler(mContext.getContentResolver(), 132 IoThread.get().getLooper()); 133 mTvInputHardwareManager = new TvInputHardwareManager(context, new HardwareListener()); 134 135 synchronized (mLock) { 136 mUserStates.put(mCurrentUserId, new UserState(mContext, mCurrentUserId)); 137 } 138 } 139 140 @Override 141 public void onStart() { 142 publishBinderService(Context.TV_INPUT_SERVICE, new BinderService()); 143 } 144 145 @Override 146 public void onBootPhase(int phase) { 147 if (phase == SystemService.PHASE_SYSTEM_SERVICES_READY) { 148 registerBroadcastReceivers(); 149 } else if (phase == SystemService.PHASE_THIRD_PARTY_APPS_CAN_START) { 150 synchronized (mLock) { 151 buildTvInputListLocked(mCurrentUserId, null); 152 buildTvContentRatingSystemListLocked(mCurrentUserId); 153 } 154 } 155 mTvInputHardwareManager.onBootPhase(phase); 156 } 157 158 private void registerBroadcastReceivers() { 159 PackageMonitor monitor = new PackageMonitor() { 160 private void buildTvInputList(String[] packages) { 161 synchronized (mLock) { 162 buildTvInputListLocked(getChangingUserId(), packages); 163 buildTvContentRatingSystemListLocked(getChangingUserId()); 164 } 165 } 166 167 @Override 168 public void onPackageUpdateFinished(String packageName, int uid) { 169 if (DEBUG) Slog.d(TAG, "onPackageUpdateFinished(packageName=" + packageName + ")"); 170 // This callback is invoked when the TV input is reinstalled. 171 // In this case, isReplacing() always returns true. 172 buildTvInputList(new String[] { packageName }); 173 } 174 175 @Override 176 public void onPackagesAvailable(String[] packages) { 177 if (DEBUG) { 178 Slog.d(TAG, "onPackagesAvailable(packages=" + Arrays.toString(packages) + ")"); 179 } 180 // This callback is invoked when the media on which some packages exist become 181 // available. 182 if (isReplacing()) { 183 buildTvInputList(packages); 184 } 185 } 186 187 @Override 188 public void onPackagesUnavailable(String[] packages) { 189 // This callback is invoked when the media on which some packages exist become 190 // unavailable. 191 if (DEBUG) { 192 Slog.d(TAG, "onPackagesUnavailable(packages=" + Arrays.toString(packages) 193 + ")"); 194 } 195 if (isReplacing()) { 196 buildTvInputList(packages); 197 } 198 } 199 200 @Override 201 public void onSomePackagesChanged() { 202 // TODO: Use finer-grained methods(e.g. onPackageAdded, onPackageRemoved) to manage 203 // the TV inputs. 204 if (DEBUG) Slog.d(TAG, "onSomePackagesChanged()"); 205 if (isReplacing()) { 206 if (DEBUG) Slog.d(TAG, "Skipped building TV input list due to replacing"); 207 // When the package is updated, buildTvInputListLocked is called in other 208 // methods instead. 209 return; 210 } 211 buildTvInputList(null); 212 } 213 214 @Override 215 public boolean onPackageChanged(String packageName, int uid, String[] components) { 216 // The input list needs to be updated in any cases, regardless of whether 217 // it happened to the whole package or a specific component. Returning true so that 218 // the update can be handled in {@link #onSomePackagesChanged}. 219 return true; 220 } 221 222 @Override 223 public void onPackageRemoved(String packageName, int uid) { 224 synchronized (mLock) { 225 UserState userState = getUserStateLocked(getChangingUserId()); 226 if (!userState.packageSet.contains(packageName)) { 227 // Not a TV input package. 228 return; 229 } 230 } 231 232 ArrayList<ContentProviderOperation> operations = new ArrayList<>(); 233 234 String selection = TvContract.BaseTvColumns.COLUMN_PACKAGE_NAME + "=?"; 235 String[] selectionArgs = { packageName }; 236 237 operations.add(ContentProviderOperation.newDelete(TvContract.Channels.CONTENT_URI) 238 .withSelection(selection, selectionArgs).build()); 239 operations.add(ContentProviderOperation.newDelete(TvContract.Programs.CONTENT_URI) 240 .withSelection(selection, selectionArgs).build()); 241 operations.add(ContentProviderOperation 242 .newDelete(TvContract.WatchedPrograms.CONTENT_URI) 243 .withSelection(selection, selectionArgs).build()); 244 245 ContentProviderResult[] results = null; 246 try { 247 ContentResolver cr = getContentResolverForUser(getChangingUserId()); 248 results = cr.applyBatch(TvContract.AUTHORITY, operations); 249 } catch (RemoteException | OperationApplicationException e) { 250 Slog.e(TAG, "error in applyBatch", e); 251 } 252 253 if (DEBUG) { 254 Slog.d(TAG, "onPackageRemoved(packageName=" + packageName + ", uid=" + uid 255 + ")"); 256 Slog.d(TAG, "results=" + results); 257 } 258 } 259 }; 260 monitor.register(mContext, null, UserHandle.ALL, true); 261 262 IntentFilter intentFilter = new IntentFilter(); 263 intentFilter.addAction(Intent.ACTION_USER_SWITCHED); 264 intentFilter.addAction(Intent.ACTION_USER_REMOVED); 265 mContext.registerReceiverAsUser(new BroadcastReceiver() { 266 @Override 267 public void onReceive(Context context, Intent intent) { 268 String action = intent.getAction(); 269 if (Intent.ACTION_USER_SWITCHED.equals(action)) { 270 switchUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 271 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 272 removeUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 273 } 274 } 275 }, UserHandle.ALL, intentFilter, null, null); 276 } 277 278 private static boolean hasHardwarePermission(PackageManager pm, ComponentName component) { 279 return pm.checkPermission(android.Manifest.permission.TV_INPUT_HARDWARE, 280 component.getPackageName()) == PackageManager.PERMISSION_GRANTED; 281 } 282 283 private void buildTvInputListLocked(int userId, String[] updatedPackages) { 284 UserState userState = getUserStateLocked(userId); 285 userState.packageSet.clear(); 286 287 if (DEBUG) Slog.d(TAG, "buildTvInputList"); 288 PackageManager pm = mContext.getPackageManager(); 289 List<ResolveInfo> services = pm.queryIntentServicesAsUser( 290 new Intent(TvInputService.SERVICE_INTERFACE), 291 PackageManager.GET_SERVICES | PackageManager.GET_META_DATA, 292 userId); 293 List<TvInputInfo> inputList = new ArrayList<>(); 294 for (ResolveInfo ri : services) { 295 ServiceInfo si = ri.serviceInfo; 296 if (!android.Manifest.permission.BIND_TV_INPUT.equals(si.permission)) { 297 Slog.w(TAG, "Skipping TV input " + si.name + ": it does not require the permission " 298 + android.Manifest.permission.BIND_TV_INPUT); 299 continue; 300 } 301 302 ComponentName component = new ComponentName(si.packageName, si.name); 303 if (hasHardwarePermission(pm, component)) { 304 ServiceState serviceState = userState.serviceStateMap.get(component); 305 if (serviceState == null) { 306 // We see this hardware TV input service for the first time; we need to 307 // prepare the ServiceState object so that we can connect to the service and 308 // let it add TvInputInfo objects to mInputList if there's any. 309 serviceState = new ServiceState(component, userId); 310 userState.serviceStateMap.put(component, serviceState); 311 updateServiceConnectionLocked(component, userId); 312 } else { 313 inputList.addAll(serviceState.inputList); 314 } 315 } else { 316 try { 317 inputList.add(TvInputInfo.createTvInputInfo(mContext, ri)); 318 } catch (XmlPullParserException | IOException e) { 319 Slog.e(TAG, "failed to load TV input " + si.name, e); 320 continue; 321 } 322 } 323 userState.packageSet.add(si.packageName); 324 } 325 326 Map<String, TvInputState> inputMap = new HashMap<>(); 327 for (TvInputInfo info : inputList) { 328 if (DEBUG) { 329 Slog.d(TAG, "add " + info.getId()); 330 } 331 TvInputState state = userState.inputMap.get(info.getId()); 332 if (state == null) { 333 state = new TvInputState(); 334 } 335 state.info = info; 336 inputMap.put(info.getId(), state); 337 } 338 339 for (String inputId : inputMap.keySet()) { 340 if (!userState.inputMap.containsKey(inputId)) { 341 notifyInputAddedLocked(userState, inputId); 342 } else if (updatedPackages != null) { 343 // Notify the package updates 344 ComponentName component = inputMap.get(inputId).info.getComponent(); 345 for (String updatedPackage : updatedPackages) { 346 if (component.getPackageName().equals(updatedPackage)) { 347 updateServiceConnectionLocked(component, userId); 348 notifyInputUpdatedLocked(userState, inputId); 349 break; 350 } 351 } 352 } 353 } 354 355 for (String inputId : userState.inputMap.keySet()) { 356 if (!inputMap.containsKey(inputId)) { 357 TvInputInfo info = userState.inputMap.get(inputId).info; 358 ServiceState serviceState = userState.serviceStateMap.get(info.getComponent()); 359 if (serviceState != null) { 360 abortPendingCreateSessionRequestsLocked(serviceState, inputId, userId); 361 } 362 notifyInputRemovedLocked(userState, inputId); 363 } 364 } 365 366 userState.inputMap.clear(); 367 userState.inputMap = inputMap; 368 } 369 370 private void buildTvContentRatingSystemListLocked(int userId) { 371 UserState userState = getUserStateLocked(userId); 372 userState.contentRatingSystemList.clear(); 373 374 final PackageManager pm = mContext.getPackageManager(); 375 Intent intent = new Intent(TvInputManager.ACTION_QUERY_CONTENT_RATING_SYSTEMS); 376 for (ResolveInfo resolveInfo : 377 pm.queryBroadcastReceivers(intent, PackageManager.GET_META_DATA)) { 378 ActivityInfo receiver = resolveInfo.activityInfo; 379 Bundle metaData = receiver.metaData; 380 if (metaData == null) { 381 continue; 382 } 383 384 int xmlResId = metaData.getInt(TvInputManager.META_DATA_CONTENT_RATING_SYSTEMS); 385 if (xmlResId == 0) { 386 Slog.w(TAG, "Missing meta-data '" 387 + TvInputManager.META_DATA_CONTENT_RATING_SYSTEMS + "' on receiver " 388 + receiver.packageName + "/" + receiver.name); 389 continue; 390 } 391 userState.contentRatingSystemList.add( 392 TvContentRatingSystemInfo.createTvContentRatingSystemInfo(xmlResId, 393 receiver.applicationInfo)); 394 } 395 } 396 397 private void switchUser(int userId) { 398 synchronized (mLock) { 399 if (mCurrentUserId == userId) { 400 return; 401 } 402 clearSessionAndServiceStatesLocked(mUserStates.get(mCurrentUserId)); 403 404 mCurrentUserId = userId; 405 UserState userState = mUserStates.get(userId); 406 if (userState == null) { 407 userState = new UserState(mContext, userId); 408 mUserStates.put(userId, userState); 409 } 410 buildTvInputListLocked(userId, null); 411 buildTvContentRatingSystemListLocked(userId); 412 mWatchLogHandler.obtainMessage(WatchLogHandler.MSG_SWITCH_CONTENT_RESOLVER, 413 getContentResolverForUser(userId)).sendToTarget(); 414 } 415 } 416 417 private void removeUser(int userId) { 418 synchronized (mLock) { 419 UserState userState = mUserStates.get(userId); 420 if (userState == null) { 421 return; 422 } 423 clearSessionAndServiceStatesLocked(userState); 424 425 // Clear everything else. 426 userState.inputMap.clear(); 427 userState.packageSet.clear(); 428 userState.contentRatingSystemList.clear(); 429 userState.clientStateMap.clear(); 430 userState.callbackSet.clear(); 431 userState.mainSessionToken = null; 432 433 mUserStates.remove(userId); 434 } 435 } 436 437 private void clearSessionAndServiceStatesLocked(UserState userState) { 438 // Release created sessions. 439 for (SessionState state : userState.sessionStateMap.values()) { 440 if (state.session != null) { 441 try { 442 state.session.release(); 443 } catch (RemoteException e) { 444 Slog.e(TAG, "error in release", e); 445 } 446 } 447 } 448 userState.sessionStateMap.clear(); 449 450 // Unregister all callbacks and unbind all services. 451 for (ServiceState serviceState : userState.serviceStateMap.values()) { 452 if (serviceState.callback != null) { 453 try { 454 serviceState.service.unregisterCallback(serviceState.callback); 455 } catch (RemoteException e) { 456 Slog.e(TAG, "error in unregisterCallback", e); 457 } 458 } 459 mContext.unbindService(serviceState.connection); 460 } 461 userState.serviceStateMap.clear(); 462 } 463 464 private ContentResolver getContentResolverForUser(int userId) { 465 UserHandle user = new UserHandle(userId); 466 Context context; 467 try { 468 context = mContext.createPackageContextAsUser("android", 0, user); 469 } catch (NameNotFoundException e) { 470 Slog.e(TAG, "failed to create package contenxt as user " + user); 471 context = mContext; 472 } 473 return context.getContentResolver(); 474 } 475 476 private UserState getUserStateLocked(int userId) { 477 UserState userState = mUserStates.get(userId); 478 if (userState == null) { 479 throw new IllegalStateException("User state not found for user ID " + userId); 480 } 481 return userState; 482 } 483 484 private ServiceState getServiceStateLocked(ComponentName component, int userId) { 485 UserState userState = getUserStateLocked(userId); 486 ServiceState serviceState = userState.serviceStateMap.get(component); 487 if (serviceState == null) { 488 throw new IllegalStateException("Service state not found for " + component + " (userId=" 489 + userId + ")"); 490 } 491 return serviceState; 492 } 493 494 private SessionState getSessionStateLocked(IBinder sessionToken, int callingUid, int userId) { 495 UserState userState = getUserStateLocked(userId); 496 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 497 if (sessionState == null) { 498 throw new SessionNotFoundException("Session state not found for token " + sessionToken); 499 } 500 // Only the application that requested this session or the system can access it. 501 if (callingUid != Process.SYSTEM_UID && callingUid != sessionState.callingUid) { 502 throw new SecurityException("Illegal access to the session with token " + sessionToken 503 + " from uid " + callingUid); 504 } 505 return sessionState; 506 } 507 508 private ITvInputSession getSessionLocked(IBinder sessionToken, int callingUid, int userId) { 509 return getSessionLocked(getSessionStateLocked(sessionToken, callingUid, userId)); 510 } 511 512 private ITvInputSession getSessionLocked(SessionState sessionState) { 513 ITvInputSession session = sessionState.session; 514 if (session == null) { 515 throw new IllegalStateException("Session not yet created for token " 516 + sessionState.sessionToken); 517 } 518 return session; 519 } 520 521 private int resolveCallingUserId(int callingPid, int callingUid, int requestedUserId, 522 String methodName) { 523 return ActivityManager.handleIncomingUser(callingPid, callingUid, requestedUserId, false, 524 false, methodName, null); 525 } 526 527 private static boolean shouldMaintainConnection(ServiceState serviceState) { 528 return !serviceState.sessionTokens.isEmpty() || serviceState.isHardware; 529 // TODO: Find a way to maintain connection to hardware TV input service only when necessary. 530 } 531 532 private void updateServiceConnectionLocked(ComponentName component, int userId) { 533 UserState userState = getUserStateLocked(userId); 534 ServiceState serviceState = userState.serviceStateMap.get(component); 535 if (serviceState == null) { 536 return; 537 } 538 if (serviceState.reconnecting) { 539 if (!serviceState.sessionTokens.isEmpty()) { 540 // wait until all the sessions are removed. 541 return; 542 } 543 serviceState.reconnecting = false; 544 } 545 boolean maintainConnection = shouldMaintainConnection(serviceState); 546 if (serviceState.service == null && maintainConnection && userId == mCurrentUserId) { 547 // This means that the service is not yet connected but its state indicates that we 548 // have pending requests. Then, connect the service. 549 if (serviceState.bound) { 550 // We have already bound to the service so we don't try to bind again until after we 551 // unbind later on. 552 return; 553 } 554 if (DEBUG) { 555 Slog.d(TAG, "bindServiceAsUser(service=" + component + ", userId=" + userId + ")"); 556 } 557 558 Intent i = new Intent(TvInputService.SERVICE_INTERFACE).setComponent(component); 559 serviceState.bound = mContext.bindServiceAsUser( 560 i, serviceState.connection, 561 Context.BIND_AUTO_CREATE | Context.BIND_FOREGROUND_SERVICE_WHILE_AWAKE, 562 new UserHandle(userId)); 563 } else if (serviceState.service != null && !maintainConnection) { 564 // This means that the service is already connected but its state indicates that we have 565 // nothing to do with it. Then, disconnect the service. 566 if (DEBUG) { 567 Slog.d(TAG, "unbindService(service=" + component + ")"); 568 } 569 mContext.unbindService(serviceState.connection); 570 userState.serviceStateMap.remove(component); 571 } 572 } 573 574 private void abortPendingCreateSessionRequestsLocked(ServiceState serviceState, 575 String inputId, int userId) { 576 // Let clients know the create session requests are failed. 577 UserState userState = getUserStateLocked(userId); 578 List<SessionState> sessionsToAbort = new ArrayList<>(); 579 for (IBinder sessionToken : serviceState.sessionTokens) { 580 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 581 if (sessionState.session == null && (inputId == null 582 || sessionState.info.getId().equals(inputId))) { 583 sessionsToAbort.add(sessionState); 584 } 585 } 586 for (SessionState sessionState : sessionsToAbort) { 587 removeSessionStateLocked(sessionState.sessionToken, sessionState.userId); 588 sendSessionTokenToClientLocked(sessionState.client, 589 sessionState.info.getId(), null, null, sessionState.seq); 590 } 591 updateServiceConnectionLocked(serviceState.component, userId); 592 } 593 594 private void createSessionInternalLocked(ITvInputService service, IBinder sessionToken, 595 int userId) { 596 UserState userState = getUserStateLocked(userId); 597 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 598 if (DEBUG) { 599 Slog.d(TAG, "createSessionInternalLocked(inputId=" + sessionState.info.getId() + ")"); 600 } 601 InputChannel[] channels = InputChannel.openInputChannelPair(sessionToken.toString()); 602 603 // Set up a callback to send the session token. 604 ITvInputSessionCallback callback = new SessionCallback(sessionState, channels); 605 606 // Create a session. When failed, send a null token immediately. 607 try { 608 service.createSession(channels[1], callback, sessionState.info.getId()); 609 } catch (RemoteException e) { 610 Slog.e(TAG, "error in createSession", e); 611 removeSessionStateLocked(sessionToken, userId); 612 sendSessionTokenToClientLocked(sessionState.client, sessionState.info.getId(), null, 613 null, sessionState.seq); 614 } 615 channels[1].dispose(); 616 } 617 618 private void sendSessionTokenToClientLocked(ITvInputClient client, String inputId, 619 IBinder sessionToken, InputChannel channel, int seq) { 620 try { 621 client.onSessionCreated(inputId, sessionToken, channel, seq); 622 } catch (RemoteException e) { 623 Slog.e(TAG, "error in onSessionCreated", e); 624 } 625 } 626 627 private void releaseSessionLocked(IBinder sessionToken, int callingUid, int userId) { 628 SessionState sessionState = null; 629 try { 630 sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 631 if (sessionState.session != null) { 632 UserState userState = getUserStateLocked(userId); 633 if (sessionToken == userState.mainSessionToken) { 634 setMainLocked(sessionToken, false, callingUid, userId); 635 } 636 sessionState.session.release(); 637 } 638 } catch (RemoteException | SessionNotFoundException e) { 639 Slog.e(TAG, "error in releaseSession", e); 640 } finally { 641 if (sessionState != null) { 642 sessionState.session = null; 643 } 644 } 645 removeSessionStateLocked(sessionToken, userId); 646 } 647 648 private void removeSessionStateLocked(IBinder sessionToken, int userId) { 649 UserState userState = getUserStateLocked(userId); 650 if (sessionToken == userState.mainSessionToken) { 651 if (DEBUG) { 652 Slog.d(TAG, "mainSessionToken=null"); 653 } 654 userState.mainSessionToken = null; 655 } 656 657 // Remove the session state from the global session state map of the current user. 658 SessionState sessionState = userState.sessionStateMap.remove(sessionToken); 659 660 if (sessionState == null) { 661 return; 662 } 663 664 // Also remove the session token from the session token list of the current client and 665 // service. 666 ClientState clientState = userState.clientStateMap.get(sessionState.client.asBinder()); 667 if (clientState != null) { 668 clientState.sessionTokens.remove(sessionToken); 669 if (clientState.isEmpty()) { 670 userState.clientStateMap.remove(sessionState.client.asBinder()); 671 } 672 } 673 674 TvInputInfo info = sessionState.info; 675 if (info != null) { 676 ServiceState serviceState = userState.serviceStateMap.get(info.getComponent()); 677 if (serviceState != null) { 678 serviceState.sessionTokens.remove(sessionToken); 679 } 680 } 681 updateServiceConnectionLocked(sessionState.info.getComponent(), userId); 682 683 // Log the end of watch. 684 SomeArgs args = SomeArgs.obtain(); 685 args.arg1 = sessionToken; 686 args.arg2 = System.currentTimeMillis(); 687 mWatchLogHandler.obtainMessage(WatchLogHandler.MSG_LOG_WATCH_END, args).sendToTarget(); 688 } 689 690 private void setMainLocked(IBinder sessionToken, boolean isMain, int callingUid, int userId) { 691 try { 692 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 693 if (sessionState.hardwareSessionToken != null) { 694 sessionState = getSessionStateLocked(sessionState.hardwareSessionToken, 695 Process.SYSTEM_UID, userId); 696 } 697 ServiceState serviceState = getServiceStateLocked(sessionState.info.getComponent(), userId); 698 if (!serviceState.isHardware) { 699 return; 700 } 701 ITvInputSession session = getSessionLocked(sessionState); 702 session.setMain(isMain); 703 } catch (RemoteException | SessionNotFoundException e) { 704 Slog.e(TAG, "error in setMain", e); 705 } 706 } 707 708 private void notifyInputAddedLocked(UserState userState, String inputId) { 709 if (DEBUG) { 710 Slog.d(TAG, "notifyInputAddedLocked(inputId=" + inputId + ")"); 711 } 712 for (ITvInputManagerCallback callback : userState.callbackSet) { 713 try { 714 callback.onInputAdded(inputId); 715 } catch (RemoteException e) { 716 Slog.e(TAG, "failed to report added input to callback", e); 717 } 718 } 719 } 720 721 private void notifyInputRemovedLocked(UserState userState, String inputId) { 722 if (DEBUG) { 723 Slog.d(TAG, "notifyInputRemovedLocked(inputId=" + inputId + ")"); 724 } 725 for (ITvInputManagerCallback callback : userState.callbackSet) { 726 try { 727 callback.onInputRemoved(inputId); 728 } catch (RemoteException e) { 729 Slog.e(TAG, "failed to report removed input to callback", e); 730 } 731 } 732 } 733 734 private void notifyInputUpdatedLocked(UserState userState, String inputId) { 735 if (DEBUG) { 736 Slog.d(TAG, "notifyInputUpdatedLocked(inputId=" + inputId + ")"); 737 } 738 for (ITvInputManagerCallback callback : userState.callbackSet) { 739 try { 740 callback.onInputUpdated(inputId); 741 } catch (RemoteException e) { 742 Slog.e(TAG, "failed to report updated input to callback", e); 743 } 744 } 745 } 746 747 private void notifyInputStateChangedLocked(UserState userState, String inputId, 748 int state, ITvInputManagerCallback targetCallback) { 749 if (DEBUG) { 750 Slog.d(TAG, "notifyInputStateChangedLocked(inputId=" + inputId 751 + ", state=" + state + ")"); 752 } 753 if (targetCallback == null) { 754 for (ITvInputManagerCallback callback : userState.callbackSet) { 755 try { 756 callback.onInputStateChanged(inputId, state); 757 } catch (RemoteException e) { 758 Slog.e(TAG, "failed to report state change to callback", e); 759 } 760 } 761 } else { 762 try { 763 targetCallback.onInputStateChanged(inputId, state); 764 } catch (RemoteException e) { 765 Slog.e(TAG, "failed to report state change to callback", e); 766 } 767 } 768 } 769 770 private void setStateLocked(String inputId, int state, int userId) { 771 UserState userState = getUserStateLocked(userId); 772 TvInputState inputState = userState.inputMap.get(inputId); 773 ServiceState serviceState = userState.serviceStateMap.get(inputState.info.getComponent()); 774 int oldState = inputState.state; 775 inputState.state = state; 776 if (serviceState != null && serviceState.service == null 777 && shouldMaintainConnection(serviceState)) { 778 // We don't notify state change while reconnecting. It should remain disconnected. 779 return; 780 } 781 if (oldState != state) { 782 notifyInputStateChangedLocked(userState, inputId, state, null); 783 } 784 } 785 786 private final class BinderService extends ITvInputManager.Stub { 787 @Override 788 public List<TvInputInfo> getTvInputList(int userId) { 789 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 790 Binder.getCallingUid(), userId, "getTvInputList"); 791 final long identity = Binder.clearCallingIdentity(); 792 try { 793 synchronized (mLock) { 794 UserState userState = getUserStateLocked(resolvedUserId); 795 List<TvInputInfo> inputList = new ArrayList<>(); 796 for (TvInputState state : userState.inputMap.values()) { 797 inputList.add(state.info); 798 } 799 return inputList; 800 } 801 } finally { 802 Binder.restoreCallingIdentity(identity); 803 } 804 } 805 806 @Override 807 public TvInputInfo getTvInputInfo(String inputId, int userId) { 808 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 809 Binder.getCallingUid(), userId, "getTvInputInfo"); 810 final long identity = Binder.clearCallingIdentity(); 811 try { 812 synchronized (mLock) { 813 UserState userState = getUserStateLocked(resolvedUserId); 814 TvInputState state = userState.inputMap.get(inputId); 815 return state == null ? null : state.info; 816 } 817 } finally { 818 Binder.restoreCallingIdentity(identity); 819 } 820 } 821 822 @Override 823 public int getTvInputState(String inputId, int userId) { 824 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 825 Binder.getCallingUid(), userId, "getTvInputState"); 826 final long identity = Binder.clearCallingIdentity(); 827 try { 828 synchronized (mLock) { 829 UserState userState = getUserStateLocked(resolvedUserId); 830 TvInputState state = userState.inputMap.get(inputId); 831 return state == null ? INPUT_STATE_CONNECTED : state.state; 832 } 833 } finally { 834 Binder.restoreCallingIdentity(identity); 835 } 836 } 837 838 @Override 839 public List<TvContentRatingSystemInfo> getTvContentRatingSystemList(int userId) { 840 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 841 Binder.getCallingUid(), userId, "getTvContentRatingSystemList"); 842 final long identity = Binder.clearCallingIdentity(); 843 try { 844 synchronized (mLock) { 845 UserState userState = getUserStateLocked(resolvedUserId); 846 return userState.contentRatingSystemList; 847 } 848 } finally { 849 Binder.restoreCallingIdentity(identity); 850 } 851 } 852 853 @Override 854 public void registerCallback(final ITvInputManagerCallback callback, int userId) { 855 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 856 Binder.getCallingUid(), userId, "registerCallback"); 857 final long identity = Binder.clearCallingIdentity(); 858 try { 859 synchronized (mLock) { 860 final UserState userState = getUserStateLocked(resolvedUserId); 861 userState.callbackSet.add(callback); 862 try { 863 callback.asBinder().linkToDeath(new IBinder.DeathRecipient() { 864 @Override 865 public void binderDied() { 866 synchronized (mLock) { 867 if (userState.callbackSet != null) { 868 userState.callbackSet.remove(callback); 869 } 870 } 871 } 872 }, 0); 873 } catch (RemoteException e) { 874 Slog.e(TAG, "client process has already died", e); 875 } 876 } 877 } finally { 878 Binder.restoreCallingIdentity(identity); 879 } 880 } 881 882 @Override 883 public void unregisterCallback(ITvInputManagerCallback callback, int userId) { 884 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 885 Binder.getCallingUid(), userId, "unregisterCallback"); 886 final long identity = Binder.clearCallingIdentity(); 887 try { 888 synchronized (mLock) { 889 UserState userState = getUserStateLocked(resolvedUserId); 890 userState.callbackSet.remove(callback); 891 } 892 } finally { 893 Binder.restoreCallingIdentity(identity); 894 } 895 } 896 897 @Override 898 public boolean isParentalControlsEnabled(int userId) { 899 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 900 Binder.getCallingUid(), userId, "isParentalControlsEnabled"); 901 final long identity = Binder.clearCallingIdentity(); 902 try { 903 synchronized (mLock) { 904 UserState userState = getUserStateLocked(resolvedUserId); 905 return userState.persistentDataStore.isParentalControlsEnabled(); 906 } 907 } finally { 908 Binder.restoreCallingIdentity(identity); 909 } 910 } 911 912 @Override 913 public void setParentalControlsEnabled(boolean enabled, int userId) { 914 ensureParentalControlsPermission(); 915 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 916 Binder.getCallingUid(), userId, "setParentalControlsEnabled"); 917 final long identity = Binder.clearCallingIdentity(); 918 try { 919 synchronized (mLock) { 920 UserState userState = getUserStateLocked(resolvedUserId); 921 userState.persistentDataStore.setParentalControlsEnabled(enabled); 922 } 923 } finally { 924 Binder.restoreCallingIdentity(identity); 925 } 926 } 927 928 @Override 929 public boolean isRatingBlocked(String rating, int userId) { 930 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 931 Binder.getCallingUid(), userId, "isRatingBlocked"); 932 final long identity = Binder.clearCallingIdentity(); 933 try { 934 synchronized (mLock) { 935 UserState userState = getUserStateLocked(resolvedUserId); 936 return userState.persistentDataStore.isRatingBlocked( 937 TvContentRating.unflattenFromString(rating)); 938 } 939 } finally { 940 Binder.restoreCallingIdentity(identity); 941 } 942 } 943 944 @Override 945 public List<String> getBlockedRatings(int userId) { 946 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 947 Binder.getCallingUid(), userId, "getBlockedRatings"); 948 final long identity = Binder.clearCallingIdentity(); 949 try { 950 synchronized (mLock) { 951 UserState userState = getUserStateLocked(resolvedUserId); 952 List<String> ratings = new ArrayList<>(); 953 for (TvContentRating rating 954 : userState.persistentDataStore.getBlockedRatings()) { 955 ratings.add(rating.flattenToString()); 956 } 957 return ratings; 958 } 959 } finally { 960 Binder.restoreCallingIdentity(identity); 961 } 962 } 963 964 @Override 965 public void addBlockedRating(String rating, int userId) { 966 ensureParentalControlsPermission(); 967 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 968 Binder.getCallingUid(), userId, "addBlockedRating"); 969 final long identity = Binder.clearCallingIdentity(); 970 try { 971 synchronized (mLock) { 972 UserState userState = getUserStateLocked(resolvedUserId); 973 userState.persistentDataStore.addBlockedRating( 974 TvContentRating.unflattenFromString(rating)); 975 } 976 } finally { 977 Binder.restoreCallingIdentity(identity); 978 } 979 } 980 981 @Override 982 public void removeBlockedRating(String rating, int userId) { 983 ensureParentalControlsPermission(); 984 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 985 Binder.getCallingUid(), userId, "removeBlockedRating"); 986 final long identity = Binder.clearCallingIdentity(); 987 try { 988 synchronized (mLock) { 989 UserState userState = getUserStateLocked(resolvedUserId); 990 userState.persistentDataStore.removeBlockedRating( 991 TvContentRating.unflattenFromString(rating)); 992 } 993 } finally { 994 Binder.restoreCallingIdentity(identity); 995 } 996 } 997 998 private void ensureParentalControlsPermission() { 999 if (mContext.checkCallingPermission( 1000 android.Manifest.permission.MODIFY_PARENTAL_CONTROLS) 1001 != PackageManager.PERMISSION_GRANTED) { 1002 throw new SecurityException( 1003 "The caller does not have parental controls permission"); 1004 } 1005 } 1006 1007 @Override 1008 public void createSession(final ITvInputClient client, final String inputId, 1009 int seq, int userId) { 1010 final int callingUid = Binder.getCallingUid(); 1011 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1012 userId, "createSession"); 1013 final long identity = Binder.clearCallingIdentity(); 1014 try { 1015 synchronized (mLock) { 1016 UserState userState = getUserStateLocked(resolvedUserId); 1017 TvInputState inputState = userState.inputMap.get(inputId); 1018 if (inputState == null) { 1019 Slog.w(TAG, "Failed to find input state for inputId=" + inputId); 1020 sendSessionTokenToClientLocked(client, inputId, null, null, seq); 1021 return; 1022 } 1023 TvInputInfo info = inputState.info; 1024 ServiceState serviceState = userState.serviceStateMap.get(info.getComponent()); 1025 if (serviceState == null) { 1026 serviceState = new ServiceState(info.getComponent(), resolvedUserId); 1027 userState.serviceStateMap.put(info.getComponent(), serviceState); 1028 } 1029 // Send a null token immediately while reconnecting. 1030 if (serviceState.reconnecting) { 1031 sendSessionTokenToClientLocked(client, inputId, null, null, seq); 1032 return; 1033 } 1034 1035 // Create a new session token and a session state. 1036 IBinder sessionToken = new Binder(); 1037 SessionState sessionState = new SessionState(sessionToken, info, client, 1038 seq, callingUid, resolvedUserId); 1039 1040 // Add them to the global session state map of the current user. 1041 userState.sessionStateMap.put(sessionToken, sessionState); 1042 1043 // Also, add them to the session state map of the current service. 1044 serviceState.sessionTokens.add(sessionToken); 1045 1046 if (serviceState.service != null) { 1047 createSessionInternalLocked(serviceState.service, sessionToken, 1048 resolvedUserId); 1049 } else { 1050 updateServiceConnectionLocked(info.getComponent(), resolvedUserId); 1051 } 1052 } 1053 } finally { 1054 Binder.restoreCallingIdentity(identity); 1055 } 1056 } 1057 1058 @Override 1059 public void releaseSession(IBinder sessionToken, int userId) { 1060 if (DEBUG) { 1061 Slog.d(TAG, "releaseSession(sessionToken=" + sessionToken + ")"); 1062 } 1063 final int callingUid = Binder.getCallingUid(); 1064 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1065 userId, "releaseSession"); 1066 final long identity = Binder.clearCallingIdentity(); 1067 try { 1068 synchronized (mLock) { 1069 releaseSessionLocked(sessionToken, callingUid, resolvedUserId); 1070 } 1071 } finally { 1072 Binder.restoreCallingIdentity(identity); 1073 } 1074 } 1075 1076 @Override 1077 public void setMainSession(IBinder sessionToken, int userId) { 1078 if (DEBUG) { 1079 Slog.d(TAG, "setMainSession(sessionToken=" + sessionToken + ")"); 1080 } 1081 final int callingUid = Binder.getCallingUid(); 1082 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1083 userId, "setMainSession"); 1084 final long identity = Binder.clearCallingIdentity(); 1085 try { 1086 synchronized (mLock) { 1087 UserState userState = getUserStateLocked(resolvedUserId); 1088 if (userState.mainSessionToken == sessionToken) { 1089 return; 1090 } 1091 if (DEBUG) { 1092 Slog.d(TAG, "mainSessionToken=" + sessionToken); 1093 } 1094 IBinder oldMainSessionToken = userState.mainSessionToken; 1095 userState.mainSessionToken = sessionToken; 1096 1097 // Inform the new main session first. 1098 // See {@link TvInputService.Session#onSetMain}. 1099 if (sessionToken != null) { 1100 setMainLocked(sessionToken, true, callingUid, userId); 1101 } 1102 if (oldMainSessionToken != null) { 1103 setMainLocked(oldMainSessionToken, false, Process.SYSTEM_UID, userId); 1104 } 1105 } 1106 } finally { 1107 Binder.restoreCallingIdentity(identity); 1108 } 1109 } 1110 1111 @Override 1112 public void setSurface(IBinder sessionToken, Surface surface, int userId) { 1113 final int callingUid = Binder.getCallingUid(); 1114 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1115 userId, "setSurface"); 1116 final long identity = Binder.clearCallingIdentity(); 1117 try { 1118 synchronized (mLock) { 1119 try { 1120 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, 1121 resolvedUserId); 1122 if (sessionState.hardwareSessionToken == null) { 1123 getSessionLocked(sessionState).setSurface(surface); 1124 } else { 1125 getSessionLocked(sessionState.hardwareSessionToken, 1126 Process.SYSTEM_UID, resolvedUserId).setSurface(surface); 1127 } 1128 } catch (RemoteException | SessionNotFoundException e) { 1129 Slog.e(TAG, "error in setSurface", e); 1130 } 1131 } 1132 } finally { 1133 if (surface != null) { 1134 // surface is not used in TvInputManagerService. 1135 surface.release(); 1136 } 1137 Binder.restoreCallingIdentity(identity); 1138 } 1139 } 1140 1141 @Override 1142 public void dispatchSurfaceChanged(IBinder sessionToken, int format, int width, 1143 int height, int userId) { 1144 final int callingUid = Binder.getCallingUid(); 1145 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1146 userId, "dispatchSurfaceChanged"); 1147 final long identity = Binder.clearCallingIdentity(); 1148 try { 1149 synchronized (mLock) { 1150 try { 1151 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, 1152 resolvedUserId); 1153 getSessionLocked(sessionState).dispatchSurfaceChanged(format, width, 1154 height); 1155 if (sessionState.hardwareSessionToken != null) { 1156 getSessionLocked(sessionState.hardwareSessionToken, Process.SYSTEM_UID, 1157 resolvedUserId).dispatchSurfaceChanged(format, width, height); 1158 } 1159 } catch (RemoteException | SessionNotFoundException e) { 1160 Slog.e(TAG, "error in dispatchSurfaceChanged", e); 1161 } 1162 } 1163 } finally { 1164 Binder.restoreCallingIdentity(identity); 1165 } 1166 } 1167 1168 @Override 1169 public void setVolume(IBinder sessionToken, float volume, int userId) { 1170 final float REMOTE_VOLUME_ON = 1.0f; 1171 final float REMOTE_VOLUME_OFF = 0f; 1172 final int callingUid = Binder.getCallingUid(); 1173 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1174 userId, "setVolume"); 1175 final long identity = Binder.clearCallingIdentity(); 1176 try { 1177 synchronized (mLock) { 1178 try { 1179 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, 1180 resolvedUserId); 1181 getSessionLocked(sessionState).setVolume(volume); 1182 if (sessionState.hardwareSessionToken != null) { 1183 // Here, we let the hardware session know only whether volume is on or 1184 // off to prevent that the volume is controlled in the both side. 1185 getSessionLocked(sessionState.hardwareSessionToken, 1186 Process.SYSTEM_UID, resolvedUserId).setVolume((volume > 0.0f) 1187 ? REMOTE_VOLUME_ON : REMOTE_VOLUME_OFF); 1188 } 1189 } catch (RemoteException | SessionNotFoundException e) { 1190 Slog.e(TAG, "error in setVolume", e); 1191 } 1192 } 1193 } finally { 1194 Binder.restoreCallingIdentity(identity); 1195 } 1196 } 1197 1198 @Override 1199 public void tune(IBinder sessionToken, final Uri channelUri, Bundle params, int userId) { 1200 final int callingUid = Binder.getCallingUid(); 1201 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1202 userId, "tune"); 1203 final long identity = Binder.clearCallingIdentity(); 1204 try { 1205 synchronized (mLock) { 1206 try { 1207 getSessionLocked(sessionToken, callingUid, resolvedUserId).tune( 1208 channelUri, params); 1209 if (TvContract.isChannelUriForPassthroughInput(channelUri)) { 1210 // Do not log the watch history for passthrough inputs. 1211 return; 1212 } 1213 1214 UserState userState = getUserStateLocked(resolvedUserId); 1215 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 1216 1217 // Log the start of watch. 1218 SomeArgs args = SomeArgs.obtain(); 1219 args.arg1 = sessionState.info.getComponent().getPackageName(); 1220 args.arg2 = System.currentTimeMillis(); 1221 args.arg3 = ContentUris.parseId(channelUri); 1222 args.arg4 = params; 1223 args.arg5 = sessionToken; 1224 mWatchLogHandler.obtainMessage(WatchLogHandler.MSG_LOG_WATCH_START, args) 1225 .sendToTarget(); 1226 } catch (RemoteException | SessionNotFoundException e) { 1227 Slog.e(TAG, "error in tune", e); 1228 } 1229 } 1230 } finally { 1231 Binder.restoreCallingIdentity(identity); 1232 } 1233 } 1234 1235 @Override 1236 public void unblockContent( 1237 IBinder sessionToken, String unblockedRating, int userId) { 1238 final int callingUid = Binder.getCallingUid(); 1239 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1240 userId, "unblockContent"); 1241 final long identity = Binder.clearCallingIdentity(); 1242 try { 1243 synchronized (mLock) { 1244 try { 1245 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1246 .unblockContent(unblockedRating); 1247 } catch (RemoteException | SessionNotFoundException e) { 1248 Slog.e(TAG, "error in unblockContent", e); 1249 } 1250 } 1251 } finally { 1252 Binder.restoreCallingIdentity(identity); 1253 } 1254 } 1255 1256 @Override 1257 public void setCaptionEnabled(IBinder sessionToken, boolean enabled, int userId) { 1258 final int callingUid = Binder.getCallingUid(); 1259 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1260 userId, "setCaptionEnabled"); 1261 final long identity = Binder.clearCallingIdentity(); 1262 try { 1263 synchronized (mLock) { 1264 try { 1265 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1266 .setCaptionEnabled(enabled); 1267 } catch (RemoteException | SessionNotFoundException e) { 1268 Slog.e(TAG, "error in setCaptionEnabled", e); 1269 } 1270 } 1271 } finally { 1272 Binder.restoreCallingIdentity(identity); 1273 } 1274 } 1275 1276 @Override 1277 public void selectTrack(IBinder sessionToken, int type, String trackId, int userId) { 1278 final int callingUid = Binder.getCallingUid(); 1279 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1280 userId, "selectTrack"); 1281 final long identity = Binder.clearCallingIdentity(); 1282 try { 1283 synchronized (mLock) { 1284 try { 1285 getSessionLocked(sessionToken, callingUid, resolvedUserId).selectTrack( 1286 type, trackId); 1287 } catch (RemoteException | SessionNotFoundException e) { 1288 Slog.e(TAG, "error in selectTrack", e); 1289 } 1290 } 1291 } finally { 1292 Binder.restoreCallingIdentity(identity); 1293 } 1294 } 1295 1296 @Override 1297 public void sendAppPrivateCommand(IBinder sessionToken, String command, Bundle data, 1298 int userId) { 1299 final int callingUid = Binder.getCallingUid(); 1300 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1301 userId, "sendAppPrivateCommand"); 1302 final long identity = Binder.clearCallingIdentity(); 1303 try { 1304 synchronized (mLock) { 1305 try { 1306 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1307 .appPrivateCommand(command, data); 1308 } catch (RemoteException | SessionNotFoundException e) { 1309 Slog.e(TAG, "error in appPrivateCommand", e); 1310 } 1311 } 1312 } finally { 1313 Binder.restoreCallingIdentity(identity); 1314 } 1315 } 1316 1317 @Override 1318 public void createOverlayView(IBinder sessionToken, IBinder windowToken, Rect frame, 1319 int userId) { 1320 final int callingUid = Binder.getCallingUid(); 1321 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1322 userId, "createOverlayView"); 1323 final long identity = Binder.clearCallingIdentity(); 1324 try { 1325 synchronized (mLock) { 1326 try { 1327 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1328 .createOverlayView(windowToken, frame); 1329 } catch (RemoteException | SessionNotFoundException e) { 1330 Slog.e(TAG, "error in createOverlayView", e); 1331 } 1332 } 1333 } finally { 1334 Binder.restoreCallingIdentity(identity); 1335 } 1336 } 1337 1338 @Override 1339 public void relayoutOverlayView(IBinder sessionToken, Rect frame, int userId) { 1340 final int callingUid = Binder.getCallingUid(); 1341 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1342 userId, "relayoutOverlayView"); 1343 final long identity = Binder.clearCallingIdentity(); 1344 try { 1345 synchronized (mLock) { 1346 try { 1347 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1348 .relayoutOverlayView(frame); 1349 } catch (RemoteException | SessionNotFoundException e) { 1350 Slog.e(TAG, "error in relayoutOverlayView", e); 1351 } 1352 } 1353 } finally { 1354 Binder.restoreCallingIdentity(identity); 1355 } 1356 } 1357 1358 @Override 1359 public void removeOverlayView(IBinder sessionToken, int userId) { 1360 final int callingUid = Binder.getCallingUid(); 1361 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1362 userId, "removeOverlayView"); 1363 final long identity = Binder.clearCallingIdentity(); 1364 try { 1365 synchronized (mLock) { 1366 try { 1367 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1368 .removeOverlayView(); 1369 } catch (RemoteException | SessionNotFoundException e) { 1370 Slog.e(TAG, "error in removeOverlayView", e); 1371 } 1372 } 1373 } finally { 1374 Binder.restoreCallingIdentity(identity); 1375 } 1376 } 1377 1378 @Override 1379 public void timeShiftPause(IBinder sessionToken, int userId) { 1380 final int callingUid = Binder.getCallingUid(); 1381 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1382 userId, "timeShiftPause"); 1383 final long identity = Binder.clearCallingIdentity(); 1384 try { 1385 synchronized (mLock) { 1386 try { 1387 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1388 .timeShiftPause(); 1389 } catch (RemoteException | SessionNotFoundException e) { 1390 Slog.e(TAG, "error in timeShiftPause", e); 1391 } 1392 } 1393 } finally { 1394 Binder.restoreCallingIdentity(identity); 1395 } 1396 } 1397 1398 @Override 1399 public void timeShiftResume(IBinder sessionToken, int userId) { 1400 final int callingUid = Binder.getCallingUid(); 1401 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1402 userId, "timeShiftResume"); 1403 final long identity = Binder.clearCallingIdentity(); 1404 try { 1405 synchronized (mLock) { 1406 try { 1407 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1408 .timeShiftResume(); 1409 } catch (RemoteException | SessionNotFoundException e) { 1410 Slog.e(TAG, "error in timeShiftResume", e); 1411 } 1412 } 1413 } finally { 1414 Binder.restoreCallingIdentity(identity); 1415 } 1416 } 1417 1418 @Override 1419 public void timeShiftSeekTo(IBinder sessionToken, long timeMs, int userId) { 1420 final int callingUid = Binder.getCallingUid(); 1421 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1422 userId, "timeShiftSeekTo"); 1423 final long identity = Binder.clearCallingIdentity(); 1424 try { 1425 synchronized (mLock) { 1426 try { 1427 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1428 .timeShiftSeekTo(timeMs); 1429 } catch (RemoteException | SessionNotFoundException e) { 1430 Slog.e(TAG, "error in timeShiftSeekTo", e); 1431 } 1432 } 1433 } finally { 1434 Binder.restoreCallingIdentity(identity); 1435 } 1436 } 1437 1438 @Override 1439 public void timeShiftSetPlaybackParams(IBinder sessionToken, PlaybackParams params, 1440 int userId) { 1441 final int callingUid = Binder.getCallingUid(); 1442 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1443 userId, "timeShiftSetPlaybackParams"); 1444 final long identity = Binder.clearCallingIdentity(); 1445 try { 1446 synchronized (mLock) { 1447 try { 1448 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1449 .timeShiftSetPlaybackParams(params); 1450 } catch (RemoteException | SessionNotFoundException e) { 1451 Slog.e(TAG, "error in timeShiftSetPlaybackParams", e); 1452 } 1453 } 1454 } finally { 1455 Binder.restoreCallingIdentity(identity); 1456 } 1457 } 1458 1459 @Override 1460 public void timeShiftEnablePositionTracking(IBinder sessionToken, boolean enable, 1461 int userId) { 1462 final int callingUid = Binder.getCallingUid(); 1463 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1464 userId, "timeShiftEnablePositionTracking"); 1465 final long identity = Binder.clearCallingIdentity(); 1466 try { 1467 synchronized (mLock) { 1468 try { 1469 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1470 .timeShiftEnablePositionTracking(enable); 1471 } catch (RemoteException | SessionNotFoundException e) { 1472 Slog.e(TAG, "error in timeShiftEnablePositionTracking", e); 1473 } 1474 } 1475 } finally { 1476 Binder.restoreCallingIdentity(identity); 1477 } 1478 } 1479 1480 @Override 1481 public List<TvInputHardwareInfo> getHardwareList() throws RemoteException { 1482 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1483 != PackageManager.PERMISSION_GRANTED) { 1484 return null; 1485 } 1486 1487 final long identity = Binder.clearCallingIdentity(); 1488 try { 1489 return mTvInputHardwareManager.getHardwareList(); 1490 } finally { 1491 Binder.restoreCallingIdentity(identity); 1492 } 1493 } 1494 1495 @Override 1496 public ITvInputHardware acquireTvInputHardware(int deviceId, 1497 ITvInputHardwareCallback callback, TvInputInfo info, int userId) 1498 throws RemoteException { 1499 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1500 != PackageManager.PERMISSION_GRANTED) { 1501 return null; 1502 } 1503 1504 final long identity = Binder.clearCallingIdentity(); 1505 final int callingUid = Binder.getCallingUid(); 1506 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1507 userId, "acquireTvInputHardware"); 1508 try { 1509 return mTvInputHardwareManager.acquireHardware( 1510 deviceId, callback, info, callingUid, resolvedUserId); 1511 } finally { 1512 Binder.restoreCallingIdentity(identity); 1513 } 1514 } 1515 1516 @Override 1517 public void releaseTvInputHardware(int deviceId, ITvInputHardware hardware, int userId) 1518 throws RemoteException { 1519 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1520 != PackageManager.PERMISSION_GRANTED) { 1521 return; 1522 } 1523 1524 final long identity = Binder.clearCallingIdentity(); 1525 final int callingUid = Binder.getCallingUid(); 1526 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1527 userId, "releaseTvInputHardware"); 1528 try { 1529 mTvInputHardwareManager.releaseHardware( 1530 deviceId, hardware, callingUid, resolvedUserId); 1531 } finally { 1532 Binder.restoreCallingIdentity(identity); 1533 } 1534 } 1535 1536 @Override 1537 public List<DvbDeviceInfo> getDvbDeviceList() throws RemoteException { 1538 if (mContext.checkCallingPermission(android.Manifest.permission.DVB_DEVICE) 1539 != PackageManager.PERMISSION_GRANTED) { 1540 throw new SecurityException("Requires DVB_DEVICE permission"); 1541 } 1542 1543 final long identity = Binder.clearCallingIdentity(); 1544 try { 1545 ArrayList<DvbDeviceInfo> deviceInfos = new ArrayList<>(); 1546 File devDirectory = new File("/dev"); 1547 for (String fileName : devDirectory.list()) { 1548 Matcher matcher = sFrontEndDevicePattern.matcher(fileName); 1549 if (matcher.find()) { 1550 int adapterId = Integer.parseInt(matcher.group(1)); 1551 int deviceId = Integer.parseInt(matcher.group(2)); 1552 deviceInfos.add(new DvbDeviceInfo(adapterId, deviceId)); 1553 } 1554 } 1555 return Collections.unmodifiableList(deviceInfos); 1556 } finally { 1557 Binder.restoreCallingIdentity(identity); 1558 } 1559 } 1560 1561 @Override 1562 public ParcelFileDescriptor openDvbDevice(DvbDeviceInfo info, int device) 1563 throws RemoteException { 1564 if (mContext.checkCallingPermission(android.Manifest.permission.DVB_DEVICE) 1565 != PackageManager.PERMISSION_GRANTED) { 1566 throw new SecurityException("Requires DVB_DEVICE permission"); 1567 } 1568 1569 final long identity = Binder.clearCallingIdentity(); 1570 try { 1571 String deviceFileName; 1572 switch (device) { 1573 case TvInputManager.DVB_DEVICE_DEMUX: 1574 deviceFileName = String.format("/dev/dvb%d.demux%d", info.getAdapterId(), 1575 info.getDeviceId()); 1576 break; 1577 case TvInputManager.DVB_DEVICE_DVR: 1578 deviceFileName = String.format("/dev/dvb%d.dvr%d", info.getAdapterId(), 1579 info.getDeviceId()); 1580 break; 1581 case TvInputManager.DVB_DEVICE_FRONTEND: 1582 deviceFileName = String.format("/dev/dvb%d.frontend%d", info.getAdapterId(), 1583 info.getDeviceId()); 1584 break; 1585 default: 1586 throw new IllegalArgumentException("Invalid DVB device: " + device); 1587 } 1588 try { 1589 // The DVB frontend device only needs to be opened in read/write mode, which 1590 // allows performing tuning operations. The DVB demux and DVR device are enough 1591 // to be opened in read only mode. 1592 return ParcelFileDescriptor.open(new File(deviceFileName), 1593 TvInputManager.DVB_DEVICE_FRONTEND == device 1594 ? ParcelFileDescriptor.MODE_READ_WRITE 1595 : ParcelFileDescriptor.MODE_READ_ONLY); 1596 } catch (FileNotFoundException e) { 1597 return null; 1598 } 1599 } finally { 1600 Binder.restoreCallingIdentity(identity); 1601 } 1602 } 1603 1604 @Override 1605 public List<TvStreamConfig> getAvailableTvStreamConfigList(String inputId, int userId) 1606 throws RemoteException { 1607 if (mContext.checkCallingPermission( 1608 android.Manifest.permission.CAPTURE_TV_INPUT) 1609 != PackageManager.PERMISSION_GRANTED) { 1610 throw new SecurityException("Requires CAPTURE_TV_INPUT permission"); 1611 } 1612 1613 final long identity = Binder.clearCallingIdentity(); 1614 final int callingUid = Binder.getCallingUid(); 1615 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1616 userId, "getAvailableTvStreamConfigList"); 1617 try { 1618 return mTvInputHardwareManager.getAvailableTvStreamConfigList( 1619 inputId, callingUid, resolvedUserId); 1620 } finally { 1621 Binder.restoreCallingIdentity(identity); 1622 } 1623 } 1624 1625 @Override 1626 public boolean captureFrame(String inputId, Surface surface, TvStreamConfig config, 1627 int userId) 1628 throws RemoteException { 1629 if (mContext.checkCallingPermission( 1630 android.Manifest.permission.CAPTURE_TV_INPUT) 1631 != PackageManager.PERMISSION_GRANTED) { 1632 throw new SecurityException("Requires CAPTURE_TV_INPUT permission"); 1633 } 1634 1635 final long identity = Binder.clearCallingIdentity(); 1636 final int callingUid = Binder.getCallingUid(); 1637 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1638 userId, "captureFrame"); 1639 try { 1640 String hardwareInputId = null; 1641 synchronized (mLock) { 1642 UserState userState = getUserStateLocked(resolvedUserId); 1643 if (userState.inputMap.get(inputId) == null) { 1644 Slog.e(TAG, "input not found for " + inputId); 1645 return false; 1646 } 1647 for (SessionState sessionState : userState.sessionStateMap.values()) { 1648 if (sessionState.info.getId().equals(inputId) 1649 && sessionState.hardwareSessionToken != null) { 1650 hardwareInputId = userState.sessionStateMap.get( 1651 sessionState.hardwareSessionToken).info.getId(); 1652 break; 1653 } 1654 } 1655 } 1656 return mTvInputHardwareManager.captureFrame( 1657 (hardwareInputId != null) ? hardwareInputId : inputId, 1658 surface, config, callingUid, resolvedUserId); 1659 } finally { 1660 Binder.restoreCallingIdentity(identity); 1661 } 1662 } 1663 1664 @Override 1665 public boolean isSingleSessionActive(int userId) throws RemoteException { 1666 final long identity = Binder.clearCallingIdentity(); 1667 final int callingUid = Binder.getCallingUid(); 1668 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1669 userId, "isSingleSessionActive"); 1670 try { 1671 synchronized (mLock) { 1672 UserState userState = getUserStateLocked(resolvedUserId); 1673 if (userState.sessionStateMap.size() == 1) { 1674 return true; 1675 } else if (userState.sessionStateMap.size() == 2) { 1676 SessionState[] sessionStates = userState.sessionStateMap.values().toArray( 1677 new SessionState[2]); 1678 // Check if there is a wrapper input. 1679 if (sessionStates[0].hardwareSessionToken != null 1680 || sessionStates[1].hardwareSessionToken != null) { 1681 return true; 1682 } 1683 } 1684 return false; 1685 } 1686 } finally { 1687 Binder.restoreCallingIdentity(identity); 1688 } 1689 } 1690 1691 @Override 1692 @SuppressWarnings("resource") 1693 protected void dump(FileDescriptor fd, final PrintWriter writer, String[] args) { 1694 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1695 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 1696 != PackageManager.PERMISSION_GRANTED) { 1697 pw.println("Permission Denial: can't dump TvInputManager from pid=" 1698 + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()); 1699 return; 1700 } 1701 1702 synchronized (mLock) { 1703 pw.println("User Ids (Current user: " + mCurrentUserId + "):"); 1704 pw.increaseIndent(); 1705 for (int i = 0; i < mUserStates.size(); i++) { 1706 int userId = mUserStates.keyAt(i); 1707 pw.println(Integer.valueOf(userId)); 1708 } 1709 pw.decreaseIndent(); 1710 1711 for (int i = 0; i < mUserStates.size(); i++) { 1712 int userId = mUserStates.keyAt(i); 1713 UserState userState = getUserStateLocked(userId); 1714 pw.println("UserState (" + userId + "):"); 1715 pw.increaseIndent(); 1716 1717 pw.println("inputMap: inputId -> TvInputState"); 1718 pw.increaseIndent(); 1719 for (Map.Entry<String, TvInputState> entry: userState.inputMap.entrySet()) { 1720 pw.println(entry.getKey() + ": " + entry.getValue()); 1721 } 1722 pw.decreaseIndent(); 1723 1724 pw.println("packageSet:"); 1725 pw.increaseIndent(); 1726 for (String packageName : userState.packageSet) { 1727 pw.println(packageName); 1728 } 1729 pw.decreaseIndent(); 1730 1731 pw.println("clientStateMap: ITvInputClient -> ClientState"); 1732 pw.increaseIndent(); 1733 for (Map.Entry<IBinder, ClientState> entry : 1734 userState.clientStateMap.entrySet()) { 1735 ClientState client = entry.getValue(); 1736 pw.println(entry.getKey() + ": " + client); 1737 1738 pw.increaseIndent(); 1739 1740 pw.println("sessionTokens:"); 1741 pw.increaseIndent(); 1742 for (IBinder token : client.sessionTokens) { 1743 pw.println("" + token); 1744 } 1745 pw.decreaseIndent(); 1746 1747 pw.println("clientTokens: " + client.clientToken); 1748 pw.println("userId: " + client.userId); 1749 1750 pw.decreaseIndent(); 1751 } 1752 pw.decreaseIndent(); 1753 1754 pw.println("serviceStateMap: ComponentName -> ServiceState"); 1755 pw.increaseIndent(); 1756 for (Map.Entry<ComponentName, ServiceState> entry : 1757 userState.serviceStateMap.entrySet()) { 1758 ServiceState service = entry.getValue(); 1759 pw.println(entry.getKey() + ": " + service); 1760 1761 pw.increaseIndent(); 1762 1763 pw.println("sessionTokens:"); 1764 pw.increaseIndent(); 1765 for (IBinder token : service.sessionTokens) { 1766 pw.println("" + token); 1767 } 1768 pw.decreaseIndent(); 1769 1770 pw.println("service: " + service.service); 1771 pw.println("callback: " + service.callback); 1772 pw.println("bound: " + service.bound); 1773 pw.println("reconnecting: " + service.reconnecting); 1774 1775 pw.decreaseIndent(); 1776 } 1777 pw.decreaseIndent(); 1778 1779 pw.println("sessionStateMap: ITvInputSession -> SessionState"); 1780 pw.increaseIndent(); 1781 for (Map.Entry<IBinder, SessionState> entry : 1782 userState.sessionStateMap.entrySet()) { 1783 SessionState session = entry.getValue(); 1784 pw.println(entry.getKey() + ": " + session); 1785 1786 pw.increaseIndent(); 1787 pw.println("info: " + session.info); 1788 pw.println("client: " + session.client); 1789 pw.println("seq: " + session.seq); 1790 pw.println("callingUid: " + session.callingUid); 1791 pw.println("userId: " + session.userId); 1792 pw.println("sessionToken: " + session.sessionToken); 1793 pw.println("session: " + session.session); 1794 pw.println("logUri: " + session.logUri); 1795 pw.println("hardwareSessionToken: " + session.hardwareSessionToken); 1796 pw.decreaseIndent(); 1797 } 1798 pw.decreaseIndent(); 1799 1800 pw.println("callbackSet:"); 1801 pw.increaseIndent(); 1802 for (ITvInputManagerCallback callback : userState.callbackSet) { 1803 pw.println(callback.toString()); 1804 } 1805 pw.decreaseIndent(); 1806 1807 pw.println("mainSessionToken: " + userState.mainSessionToken); 1808 pw.decreaseIndent(); 1809 } 1810 } 1811 } 1812 } 1813 1814 private static final class UserState { 1815 // A mapping from the TV input id to its TvInputState. 1816 private Map<String, TvInputState> inputMap = new HashMap<>(); 1817 1818 // A set of all TV input packages. 1819 private final Set<String> packageSet = new HashSet<>(); 1820 1821 // A list of all TV content rating systems defined. 1822 private final List<TvContentRatingSystemInfo> 1823 contentRatingSystemList = new ArrayList<>(); 1824 1825 // A mapping from the token of a client to its state. 1826 private final Map<IBinder, ClientState> clientStateMap = new HashMap<>(); 1827 1828 // A mapping from the name of a TV input service to its state. 1829 private final Map<ComponentName, ServiceState> serviceStateMap = new HashMap<>(); 1830 1831 // A mapping from the token of a TV input session to its state. 1832 private final Map<IBinder, SessionState> sessionStateMap = new HashMap<>(); 1833 1834 // A set of callbacks. 1835 private final Set<ITvInputManagerCallback> callbackSet = new HashSet<>(); 1836 1837 // The token of a "main" TV input session. 1838 private IBinder mainSessionToken = null; 1839 1840 // Persistent data store for all internal settings maintained by the TV input manager 1841 // service. 1842 private final PersistentDataStore persistentDataStore; 1843 1844 private UserState(Context context, int userId) { 1845 persistentDataStore = new PersistentDataStore(context, userId); 1846 } 1847 } 1848 1849 private final class ClientState implements IBinder.DeathRecipient { 1850 private final List<IBinder> sessionTokens = new ArrayList<>(); 1851 1852 private IBinder clientToken; 1853 private final int userId; 1854 1855 ClientState(IBinder clientToken, int userId) { 1856 this.clientToken = clientToken; 1857 this.userId = userId; 1858 } 1859 1860 public boolean isEmpty() { 1861 return sessionTokens.isEmpty(); 1862 } 1863 1864 @Override 1865 public void binderDied() { 1866 synchronized (mLock) { 1867 UserState userState = getUserStateLocked(userId); 1868 // DO NOT remove the client state of clientStateMap in this method. It will be 1869 // removed in releaseSessionLocked(). 1870 ClientState clientState = userState.clientStateMap.get(clientToken); 1871 if (clientState != null) { 1872 while (clientState.sessionTokens.size() > 0) { 1873 releaseSessionLocked( 1874 clientState.sessionTokens.get(0), Process.SYSTEM_UID, userId); 1875 } 1876 } 1877 clientToken = null; 1878 } 1879 } 1880 } 1881 1882 private final class ServiceState { 1883 private final List<IBinder> sessionTokens = new ArrayList<>(); 1884 private final ServiceConnection connection; 1885 private final ComponentName component; 1886 private final boolean isHardware; 1887 private final List<TvInputInfo> inputList = new ArrayList<>(); 1888 1889 private ITvInputService service; 1890 private ServiceCallback callback; 1891 private boolean bound; 1892 private boolean reconnecting; 1893 1894 private ServiceState(ComponentName component, int userId) { 1895 this.component = component; 1896 this.connection = new InputServiceConnection(component, userId); 1897 this.isHardware = hasHardwarePermission(mContext.getPackageManager(), component); 1898 } 1899 } 1900 1901 private static final class TvInputState { 1902 // A TvInputInfo object which represents the TV input. 1903 private TvInputInfo info; 1904 1905 // The state of TV input. Connected by default. 1906 private int state = INPUT_STATE_CONNECTED; 1907 1908 @Override 1909 public String toString() { 1910 return "info: " + info + "; state: " + state; 1911 } 1912 } 1913 1914 private final class SessionState implements IBinder.DeathRecipient { 1915 private final TvInputInfo info; 1916 private final ITvInputClient client; 1917 private final int seq; 1918 private final int callingUid; 1919 private final int userId; 1920 private final IBinder sessionToken; 1921 private ITvInputSession session; 1922 private Uri logUri; 1923 // Not null if this session represents an external device connected to a hardware TV input. 1924 private IBinder hardwareSessionToken; 1925 1926 private SessionState(IBinder sessionToken, TvInputInfo info, ITvInputClient client, 1927 int seq, int callingUid, int userId) { 1928 this.sessionToken = sessionToken; 1929 this.info = info; 1930 this.client = client; 1931 this.seq = seq; 1932 this.callingUid = callingUid; 1933 this.userId = userId; 1934 } 1935 1936 @Override 1937 public void binderDied() { 1938 synchronized (mLock) { 1939 session = null; 1940 if (client != null) { 1941 try { 1942 client.onSessionReleased(seq); 1943 } catch(RemoteException e) { 1944 Slog.e(TAG, "error in onSessionReleased", e); 1945 } 1946 } 1947 // If there are any other sessions based on this session, they should be released. 1948 UserState userState = getUserStateLocked(userId); 1949 for (SessionState sessionState : userState.sessionStateMap.values()) { 1950 if (sessionToken == sessionState.hardwareSessionToken) { 1951 releaseSessionLocked(sessionState.sessionToken, Process.SYSTEM_UID, 1952 userId); 1953 try { 1954 sessionState.client.onSessionReleased(sessionState.seq); 1955 } catch (RemoteException e) { 1956 Slog.e(TAG, "error in onSessionReleased", e); 1957 } 1958 } 1959 } 1960 removeSessionStateLocked(sessionToken, userId); 1961 } 1962 } 1963 } 1964 1965 private final class InputServiceConnection implements ServiceConnection { 1966 private final ComponentName mComponent; 1967 private final int mUserId; 1968 1969 private InputServiceConnection(ComponentName component, int userId) { 1970 mComponent = component; 1971 mUserId = userId; 1972 } 1973 1974 @Override 1975 public void onServiceConnected(ComponentName component, IBinder service) { 1976 if (DEBUG) { 1977 Slog.d(TAG, "onServiceConnected(component=" + component + ")"); 1978 } 1979 synchronized (mLock) { 1980 UserState userState = getUserStateLocked(mUserId); 1981 ServiceState serviceState = userState.serviceStateMap.get(mComponent); 1982 serviceState.service = ITvInputService.Stub.asInterface(service); 1983 1984 // Register a callback, if we need to. 1985 if (serviceState.isHardware && serviceState.callback == null) { 1986 serviceState.callback = new ServiceCallback(mComponent, mUserId); 1987 try { 1988 serviceState.service.registerCallback(serviceState.callback); 1989 } catch (RemoteException e) { 1990 Slog.e(TAG, "error in registerCallback", e); 1991 } 1992 } 1993 1994 // And create sessions, if any. 1995 for (IBinder sessionToken : serviceState.sessionTokens) { 1996 createSessionInternalLocked(serviceState.service, sessionToken, mUserId); 1997 } 1998 1999 for (TvInputState inputState : userState.inputMap.values()) { 2000 if (inputState.info.getComponent().equals(component) 2001 && inputState.state != INPUT_STATE_CONNECTED) { 2002 notifyInputStateChangedLocked(userState, inputState.info.getId(), 2003 inputState.state, null); 2004 } 2005 } 2006 2007 if (serviceState.isHardware) { 2008 List<TvInputHardwareInfo> hardwareInfoList = 2009 mTvInputHardwareManager.getHardwareList(); 2010 for (TvInputHardwareInfo hardwareInfo : hardwareInfoList) { 2011 try { 2012 serviceState.service.notifyHardwareAdded(hardwareInfo); 2013 } catch (RemoteException e) { 2014 Slog.e(TAG, "error in notifyHardwareAdded", e); 2015 } 2016 } 2017 2018 List<HdmiDeviceInfo> deviceInfoList = 2019 mTvInputHardwareManager.getHdmiDeviceList(); 2020 for (HdmiDeviceInfo deviceInfo : deviceInfoList) { 2021 try { 2022 serviceState.service.notifyHdmiDeviceAdded(deviceInfo); 2023 } catch (RemoteException e) { 2024 Slog.e(TAG, "error in notifyHdmiDeviceAdded", e); 2025 } 2026 } 2027 } 2028 } 2029 } 2030 2031 @Override 2032 public void onServiceDisconnected(ComponentName component) { 2033 if (DEBUG) { 2034 Slog.d(TAG, "onServiceDisconnected(component=" + component + ")"); 2035 } 2036 if (!mComponent.equals(component)) { 2037 throw new IllegalArgumentException("Mismatched ComponentName: " 2038 + mComponent + " (expected), " + component + " (actual)."); 2039 } 2040 synchronized (mLock) { 2041 UserState userState = getUserStateLocked(mUserId); 2042 ServiceState serviceState = userState.serviceStateMap.get(mComponent); 2043 if (serviceState != null) { 2044 serviceState.reconnecting = true; 2045 serviceState.bound = false; 2046 serviceState.service = null; 2047 serviceState.callback = null; 2048 2049 abortPendingCreateSessionRequestsLocked(serviceState, null, mUserId); 2050 } 2051 } 2052 } 2053 } 2054 2055 private final class ServiceCallback extends ITvInputServiceCallback.Stub { 2056 private final ComponentName mComponent; 2057 private final int mUserId; 2058 2059 ServiceCallback(ComponentName component, int userId) { 2060 mComponent = component; 2061 mUserId = userId; 2062 } 2063 2064 private void ensureHardwarePermission() { 2065 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 2066 != PackageManager.PERMISSION_GRANTED) { 2067 throw new SecurityException("The caller does not have hardware permission"); 2068 } 2069 } 2070 2071 private void ensureValidInput(TvInputInfo inputInfo) { 2072 if (inputInfo.getId() == null || !mComponent.equals(inputInfo.getComponent())) { 2073 throw new IllegalArgumentException("Invalid TvInputInfo"); 2074 } 2075 } 2076 2077 private void addTvInputLocked(TvInputInfo inputInfo) { 2078 ServiceState serviceState = getServiceStateLocked(mComponent, mUserId); 2079 serviceState.inputList.add(inputInfo); 2080 buildTvInputListLocked(mUserId, null); 2081 } 2082 2083 @Override 2084 public void addHardwareTvInput(int deviceId, TvInputInfo inputInfo) { 2085 ensureHardwarePermission(); 2086 ensureValidInput(inputInfo); 2087 synchronized (mLock) { 2088 mTvInputHardwareManager.addHardwareTvInput(deviceId, inputInfo); 2089 addTvInputLocked(inputInfo); 2090 } 2091 } 2092 2093 @Override 2094 public void addHdmiTvInput(int id, TvInputInfo inputInfo) { 2095 ensureHardwarePermission(); 2096 ensureValidInput(inputInfo); 2097 synchronized (mLock) { 2098 mTvInputHardwareManager.addHdmiTvInput(id, inputInfo); 2099 addTvInputLocked(inputInfo); 2100 } 2101 } 2102 2103 @Override 2104 public void removeTvInput(String inputId) { 2105 ensureHardwarePermission(); 2106 synchronized (mLock) { 2107 ServiceState serviceState = getServiceStateLocked(mComponent, mUserId); 2108 boolean removed = false; 2109 for (Iterator<TvInputInfo> it = serviceState.inputList.iterator(); 2110 it.hasNext(); ) { 2111 if (it.next().getId().equals(inputId)) { 2112 it.remove(); 2113 removed = true; 2114 break; 2115 } 2116 } 2117 if (removed) { 2118 buildTvInputListLocked(mUserId, null); 2119 mTvInputHardwareManager.removeTvInput(inputId); 2120 } else { 2121 Slog.e(TAG, "failed to remove input " + inputId); 2122 } 2123 } 2124 } 2125 } 2126 2127 private final class SessionCallback extends ITvInputSessionCallback.Stub { 2128 private final SessionState mSessionState; 2129 private final InputChannel[] mChannels; 2130 2131 SessionCallback(SessionState sessionState, InputChannel[] channels) { 2132 mSessionState = sessionState; 2133 mChannels = channels; 2134 } 2135 2136 @Override 2137 public void onSessionCreated(ITvInputSession session, IBinder hardwareSessionToken) { 2138 if (DEBUG) { 2139 Slog.d(TAG, "onSessionCreated(inputId=" + mSessionState.info.getId() + ")"); 2140 } 2141 synchronized (mLock) { 2142 mSessionState.session = session; 2143 mSessionState.hardwareSessionToken = hardwareSessionToken; 2144 if (session != null && addSessionTokenToClientStateLocked(session)) { 2145 sendSessionTokenToClientLocked(mSessionState.client, 2146 mSessionState.info.getId(), mSessionState.sessionToken, mChannels[0], 2147 mSessionState.seq); 2148 } else { 2149 removeSessionStateLocked(mSessionState.sessionToken, mSessionState.userId); 2150 sendSessionTokenToClientLocked(mSessionState.client, 2151 mSessionState.info.getId(), null, null, mSessionState.seq); 2152 } 2153 mChannels[0].dispose(); 2154 } 2155 } 2156 2157 private boolean addSessionTokenToClientStateLocked(ITvInputSession session) { 2158 try { 2159 session.asBinder().linkToDeath(mSessionState, 0); 2160 } catch (RemoteException e) { 2161 Slog.e(TAG, "session process has already died", e); 2162 return false; 2163 } 2164 2165 IBinder clientToken = mSessionState.client.asBinder(); 2166 UserState userState = getUserStateLocked(mSessionState.userId); 2167 ClientState clientState = userState.clientStateMap.get(clientToken); 2168 if (clientState == null) { 2169 clientState = new ClientState(clientToken, mSessionState.userId); 2170 try { 2171 clientToken.linkToDeath(clientState, 0); 2172 } catch (RemoteException e) { 2173 Slog.e(TAG, "client process has already died", e); 2174 return false; 2175 } 2176 userState.clientStateMap.put(clientToken, clientState); 2177 } 2178 clientState.sessionTokens.add(mSessionState.sessionToken); 2179 return true; 2180 } 2181 2182 @Override 2183 public void onChannelRetuned(Uri channelUri) { 2184 synchronized (mLock) { 2185 if (DEBUG) { 2186 Slog.d(TAG, "onChannelRetuned(" + channelUri + ")"); 2187 } 2188 if (mSessionState.session == null || mSessionState.client == null) { 2189 return; 2190 } 2191 try { 2192 // TODO: Consider adding this channel change in the watch log. When we do 2193 // that, how we can protect the watch log from malicious tv inputs should 2194 // be addressed. e.g. add a field which represents where the channel change 2195 // originated from. 2196 mSessionState.client.onChannelRetuned(channelUri, mSessionState.seq); 2197 } catch (RemoteException e) { 2198 Slog.e(TAG, "error in onChannelRetuned", e); 2199 } 2200 } 2201 } 2202 2203 @Override 2204 public void onTracksChanged(List<TvTrackInfo> tracks) { 2205 synchronized (mLock) { 2206 if (DEBUG) { 2207 Slog.d(TAG, "onTracksChanged(" + tracks + ")"); 2208 } 2209 if (mSessionState.session == null || mSessionState.client == null) { 2210 return; 2211 } 2212 try { 2213 mSessionState.client.onTracksChanged(tracks, mSessionState.seq); 2214 } catch (RemoteException e) { 2215 Slog.e(TAG, "error in onTracksChanged", e); 2216 } 2217 } 2218 } 2219 2220 @Override 2221 public void onTrackSelected(int type, String trackId) { 2222 synchronized (mLock) { 2223 if (DEBUG) { 2224 Slog.d(TAG, "onTrackSelected(type=" + type + ", trackId=" + trackId + ")"); 2225 } 2226 if (mSessionState.session == null || mSessionState.client == null) { 2227 return; 2228 } 2229 try { 2230 mSessionState.client.onTrackSelected(type, trackId, mSessionState.seq); 2231 } catch (RemoteException e) { 2232 Slog.e(TAG, "error in onTrackSelected", e); 2233 } 2234 } 2235 } 2236 2237 @Override 2238 public void onVideoAvailable() { 2239 synchronized (mLock) { 2240 if (DEBUG) { 2241 Slog.d(TAG, "onVideoAvailable()"); 2242 } 2243 if (mSessionState.session == null || mSessionState.client == null) { 2244 return; 2245 } 2246 try { 2247 mSessionState.client.onVideoAvailable(mSessionState.seq); 2248 } catch (RemoteException e) { 2249 Slog.e(TAG, "error in onVideoAvailable", e); 2250 } 2251 } 2252 } 2253 2254 @Override 2255 public void onVideoUnavailable(int reason) { 2256 synchronized (mLock) { 2257 if (DEBUG) { 2258 Slog.d(TAG, "onVideoUnavailable(" + reason + ")"); 2259 } 2260 if (mSessionState.session == null || mSessionState.client == null) { 2261 return; 2262 } 2263 try { 2264 mSessionState.client.onVideoUnavailable(reason, mSessionState.seq); 2265 } catch (RemoteException e) { 2266 Slog.e(TAG, "error in onVideoUnavailable", e); 2267 } 2268 } 2269 } 2270 2271 @Override 2272 public void onContentAllowed() { 2273 synchronized (mLock) { 2274 if (DEBUG) { 2275 Slog.d(TAG, "onContentAllowed()"); 2276 } 2277 if (mSessionState.session == null || mSessionState.client == null) { 2278 return; 2279 } 2280 try { 2281 mSessionState.client.onContentAllowed(mSessionState.seq); 2282 } catch (RemoteException e) { 2283 Slog.e(TAG, "error in onContentAllowed", e); 2284 } 2285 } 2286 } 2287 2288 @Override 2289 public void onContentBlocked(String rating) { 2290 synchronized (mLock) { 2291 if (DEBUG) { 2292 Slog.d(TAG, "onContentBlocked()"); 2293 } 2294 if (mSessionState.session == null || mSessionState.client == null) { 2295 return; 2296 } 2297 try { 2298 mSessionState.client.onContentBlocked(rating, mSessionState.seq); 2299 } catch (RemoteException e) { 2300 Slog.e(TAG, "error in onContentBlocked", e); 2301 } 2302 } 2303 } 2304 2305 @Override 2306 public void onLayoutSurface(int left, int top, int right, int bottom) { 2307 synchronized (mLock) { 2308 if (DEBUG) { 2309 Slog.d(TAG, "onLayoutSurface (left=" + left + ", top=" + top 2310 + ", right=" + right + ", bottom=" + bottom + ",)"); 2311 } 2312 if (mSessionState.session == null || mSessionState.client == null) { 2313 return; 2314 } 2315 try { 2316 mSessionState.client.onLayoutSurface(left, top, right, bottom, 2317 mSessionState.seq); 2318 } catch (RemoteException e) { 2319 Slog.e(TAG, "error in onLayoutSurface", e); 2320 } 2321 } 2322 } 2323 2324 @Override 2325 public void onSessionEvent(String eventType, Bundle eventArgs) { 2326 synchronized (mLock) { 2327 if (DEBUG) { 2328 Slog.d(TAG, "onEvent(what=" + eventType + ", data=" + eventArgs + ")"); 2329 } 2330 if (mSessionState.session == null || mSessionState.client == null) { 2331 return; 2332 } 2333 try { 2334 mSessionState.client.onSessionEvent(eventType, eventArgs, mSessionState.seq); 2335 } catch (RemoteException e) { 2336 Slog.e(TAG, "error in onSessionEvent", e); 2337 } 2338 } 2339 } 2340 2341 @Override 2342 public void onTimeShiftStatusChanged(int status) { 2343 synchronized (mLock) { 2344 if (DEBUG) { 2345 Slog.d(TAG, "onTimeShiftStatusChanged()"); 2346 } 2347 if (mSessionState.session == null || mSessionState.client == null) { 2348 return; 2349 } 2350 try { 2351 mSessionState.client.onTimeShiftStatusChanged(status, mSessionState.seq); 2352 } catch (RemoteException e) { 2353 Slog.e(TAG, "error in onTimeShiftStatusChanged", e); 2354 } 2355 } 2356 } 2357 2358 @Override 2359 public void onTimeShiftStartPositionChanged(long timeMs) { 2360 synchronized (mLock) { 2361 if (DEBUG) { 2362 Slog.d(TAG, "onTimeShiftStartPositionChanged()"); 2363 } 2364 if (mSessionState.session == null || mSessionState.client == null) { 2365 return; 2366 } 2367 try { 2368 mSessionState.client.onTimeShiftStartPositionChanged(timeMs, mSessionState.seq); 2369 } catch (RemoteException e) { 2370 Slog.e(TAG, "error in onTimeShiftStartPositionChanged", e); 2371 } 2372 } 2373 } 2374 2375 @Override 2376 public void onTimeShiftCurrentPositionChanged(long timeMs) { 2377 synchronized (mLock) { 2378 if (DEBUG) { 2379 Slog.d(TAG, "onTimeShiftCurrentPositionChanged()"); 2380 } 2381 if (mSessionState.session == null || mSessionState.client == null) { 2382 return; 2383 } 2384 try { 2385 mSessionState.client.onTimeShiftCurrentPositionChanged(timeMs, 2386 mSessionState.seq); 2387 } catch (RemoteException e) { 2388 Slog.e(TAG, "error in onTimeShiftCurrentPositionChanged", e); 2389 } 2390 } 2391 } 2392 } 2393 2394 private static final class WatchLogHandler extends Handler { 2395 // There are only two kinds of watch events that can happen on the system: 2396 // 1. The current TV input session is tuned to a new channel. 2397 // 2. The session is released for some reason. 2398 // The former indicates the end of the previous log entry, if any, followed by the start of 2399 // a new entry. The latter indicates the end of the most recent entry for the given session. 2400 // Here the system supplies the database the smallest set of information only that is 2401 // sufficient to consolidate the log entries while minimizing database operations in the 2402 // system service. 2403 static final int MSG_LOG_WATCH_START = 1; 2404 static final int MSG_LOG_WATCH_END = 2; 2405 static final int MSG_SWITCH_CONTENT_RESOLVER = 3; 2406 2407 private ContentResolver mContentResolver; 2408 2409 WatchLogHandler(ContentResolver contentResolver, Looper looper) { 2410 super(looper); 2411 mContentResolver = contentResolver; 2412 } 2413 2414 @Override 2415 public void handleMessage(Message msg) { 2416 switch (msg.what) { 2417 case MSG_LOG_WATCH_START: { 2418 SomeArgs args = (SomeArgs) msg.obj; 2419 String packageName = (String) args.arg1; 2420 long watchStartTime = (long) args.arg2; 2421 long channelId = (long) args.arg3; 2422 Bundle tuneParams = (Bundle) args.arg4; 2423 IBinder sessionToken = (IBinder) args.arg5; 2424 2425 ContentValues values = new ContentValues(); 2426 values.put(TvContract.WatchedPrograms.COLUMN_PACKAGE_NAME, packageName); 2427 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 2428 watchStartTime); 2429 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 2430 if (tuneParams != null) { 2431 values.put(TvContract.WatchedPrograms.COLUMN_INTERNAL_TUNE_PARAMS, 2432 encodeTuneParams(tuneParams)); 2433 } 2434 values.put(TvContract.WatchedPrograms.COLUMN_INTERNAL_SESSION_TOKEN, 2435 sessionToken.toString()); 2436 2437 mContentResolver.insert(TvContract.WatchedPrograms.CONTENT_URI, values); 2438 args.recycle(); 2439 break; 2440 } 2441 case MSG_LOG_WATCH_END: { 2442 SomeArgs args = (SomeArgs) msg.obj; 2443 IBinder sessionToken = (IBinder) args.arg1; 2444 long watchEndTime = (long) args.arg2; 2445 2446 ContentValues values = new ContentValues(); 2447 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 2448 watchEndTime); 2449 values.put(TvContract.WatchedPrograms.COLUMN_INTERNAL_SESSION_TOKEN, 2450 sessionToken.toString()); 2451 2452 mContentResolver.insert(TvContract.WatchedPrograms.CONTENT_URI, values); 2453 args.recycle(); 2454 break; 2455 } 2456 case MSG_SWITCH_CONTENT_RESOLVER: { 2457 mContentResolver = (ContentResolver) msg.obj; 2458 break; 2459 } 2460 default: { 2461 Slog.w(TAG, "unhandled message code: " + msg.what); 2462 break; 2463 } 2464 } 2465 } 2466 2467 private String encodeTuneParams(Bundle tuneParams) { 2468 StringBuilder builder = new StringBuilder(); 2469 Set<String> keySet = tuneParams.keySet(); 2470 Iterator<String> it = keySet.iterator(); 2471 while (it.hasNext()) { 2472 String key = it.next(); 2473 Object value = tuneParams.get(key); 2474 if (value == null) { 2475 continue; 2476 } 2477 builder.append(replaceEscapeCharacters(key)); 2478 builder.append("="); 2479 builder.append(replaceEscapeCharacters(value.toString())); 2480 if (it.hasNext()) { 2481 builder.append(", "); 2482 } 2483 } 2484 return builder.toString(); 2485 } 2486 2487 private String replaceEscapeCharacters(String src) { 2488 final char ESCAPE_CHARACTER = '%'; 2489 final String ENCODING_TARGET_CHARACTERS = "%=,"; 2490 StringBuilder builder = new StringBuilder(); 2491 for (char ch : src.toCharArray()) { 2492 if (ENCODING_TARGET_CHARACTERS.indexOf(ch) >= 0) { 2493 builder.append(ESCAPE_CHARACTER); 2494 } 2495 builder.append(ch); 2496 } 2497 return builder.toString(); 2498 } 2499 } 2500 2501 private final class HardwareListener implements TvInputHardwareManager.Listener { 2502 @Override 2503 public void onStateChanged(String inputId, int state) { 2504 synchronized (mLock) { 2505 setStateLocked(inputId, state, mCurrentUserId); 2506 } 2507 } 2508 2509 @Override 2510 public void onHardwareDeviceAdded(TvInputHardwareInfo info) { 2511 synchronized (mLock) { 2512 UserState userState = getUserStateLocked(mCurrentUserId); 2513 // Broadcast the event to all hardware inputs. 2514 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2515 if (!serviceState.isHardware || serviceState.service == null) continue; 2516 try { 2517 serviceState.service.notifyHardwareAdded(info); 2518 } catch (RemoteException e) { 2519 Slog.e(TAG, "error in notifyHardwareAdded", e); 2520 } 2521 } 2522 } 2523 } 2524 2525 @Override 2526 public void onHardwareDeviceRemoved(TvInputHardwareInfo info) { 2527 synchronized (mLock) { 2528 UserState userState = getUserStateLocked(mCurrentUserId); 2529 // Broadcast the event to all hardware inputs. 2530 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2531 if (!serviceState.isHardware || serviceState.service == null) continue; 2532 try { 2533 serviceState.service.notifyHardwareRemoved(info); 2534 } catch (RemoteException e) { 2535 Slog.e(TAG, "error in notifyHardwareRemoved", e); 2536 } 2537 } 2538 } 2539 } 2540 2541 @Override 2542 public void onHdmiDeviceAdded(HdmiDeviceInfo deviceInfo) { 2543 synchronized (mLock) { 2544 UserState userState = getUserStateLocked(mCurrentUserId); 2545 // Broadcast the event to all hardware inputs. 2546 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2547 if (!serviceState.isHardware || serviceState.service == null) continue; 2548 try { 2549 serviceState.service.notifyHdmiDeviceAdded(deviceInfo); 2550 } catch (RemoteException e) { 2551 Slog.e(TAG, "error in notifyHdmiDeviceAdded", e); 2552 } 2553 } 2554 } 2555 } 2556 2557 @Override 2558 public void onHdmiDeviceRemoved(HdmiDeviceInfo deviceInfo) { 2559 synchronized (mLock) { 2560 UserState userState = getUserStateLocked(mCurrentUserId); 2561 // Broadcast the event to all hardware inputs. 2562 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2563 if (!serviceState.isHardware || serviceState.service == null) continue; 2564 try { 2565 serviceState.service.notifyHdmiDeviceRemoved(deviceInfo); 2566 } catch (RemoteException e) { 2567 Slog.e(TAG, "error in notifyHdmiDeviceRemoved", e); 2568 } 2569 } 2570 } 2571 } 2572 2573 @Override 2574 public void onHdmiDeviceUpdated(String inputId, HdmiDeviceInfo deviceInfo) { 2575 synchronized (mLock) { 2576 Integer state; 2577 switch (deviceInfo.getDevicePowerStatus()) { 2578 case HdmiControlManager.POWER_STATUS_ON: 2579 state = INPUT_STATE_CONNECTED; 2580 break; 2581 case HdmiControlManager.POWER_STATUS_STANDBY: 2582 case HdmiControlManager.POWER_STATUS_TRANSIENT_TO_ON: 2583 case HdmiControlManager.POWER_STATUS_TRANSIENT_TO_STANDBY: 2584 state = INPUT_STATE_CONNECTED_STANDBY; 2585 break; 2586 case HdmiControlManager.POWER_STATUS_UNKNOWN: 2587 default: 2588 state = null; 2589 break; 2590 } 2591 if (state != null) { 2592 setStateLocked(inputId, state, mCurrentUserId); 2593 } 2594 } 2595 } 2596 } 2597 2598 private static class SessionNotFoundException extends IllegalArgumentException { 2599 public SessionNotFoundException(String name) { 2600 super(name); 2601 } 2602 } 2603} 2604