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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "device/bluetooth/bluetooth_audio_sink_chromeos.h" | |
| 6 | |
| 7 #include <unistd.h> | |
| 8 | |
| 9 #include <algorithm> | |
| 10 #include <sstream> | |
| 11 #include <string> | |
| 12 #include <vector> | |
| 13 | |
| 14 #include "base/debug/stack_trace.h" | |
| 15 #include "base/files/file_util.h" | |
| 16 #include "base/logging.h" | |
| 17 #include "dbus/message.h" | |
| 18 #include "device/bluetooth/bluetooth_adapter_chromeos.h" | |
| 19 #include "device/bluetooth/dbus/bluez_dbus_manager.h" | |
| 20 | |
| 21 using dbus::ObjectPath; | |
| 22 using device::BluetoothAudioSink; | |
| 23 | |
| 24 namespace { | |
| 25 | |
| 26 // TODO(mcchou): Add the constant to dbus/service_constants.h. | |
| 27 const char kBluetoothAudioSinkServicePath[] = "/org/chromium/AudioSink"; | |
| 28 | |
| 29 const int kInvalidFd = -1; | |
| 30 const uint16_t kInvalidReadMtu = 0; | |
| 31 const uint16_t kInvalidWriteMtu = 0; | |
| 32 | |
| 33 ObjectPath GenerateEndpointPath() { | |
| 34 static unsigned int sequence_number = 0; | |
| 35 ++sequence_number; | |
| 36 std::stringstream path; | |
| 37 path << kBluetoothAudioSinkServicePath << "/endpoint" << sequence_number; | |
| 38 return ObjectPath(path.str()); | |
| 39 } | |
| 40 | |
| 41 std::string StateToString(const BluetoothAudioSink::State& state) { | |
| 42 switch (state) { | |
| 43 case BluetoothAudioSink::STATE_INVALID: | |
| 44 return "invalid"; | |
| 45 case BluetoothAudioSink::STATE_DISCONNECTED: | |
| 46 return "disconnected"; | |
| 47 case BluetoothAudioSink::STATE_IDLE: | |
| 48 return "idle"; | |
| 49 case BluetoothAudioSink::STATE_PENDING: | |
| 50 return "pending"; | |
| 51 case BluetoothAudioSink::STATE_ACTIVE: | |
| 52 return "active"; | |
| 53 default: | |
| 54 return "unknown"; | |
| 55 } | |
| 56 } | |
| 57 | |
| 58 std::string ErrorCodeToString(const BluetoothAudioSink::ErrorCode& error_code) { | |
| 59 switch (error_code) { | |
| 60 case BluetoothAudioSink::ERROR_UNSUPPORTED_PLATFORM: | |
| 61 return "unsupported platform"; | |
| 62 case BluetoothAudioSink::ERROR_INVALID_ADAPTER: | |
| 63 return "invalid adapter"; | |
| 64 case BluetoothAudioSink::ERROR_NOT_REGISTERED: | |
| 65 return "not registered"; | |
| 66 case BluetoothAudioSink::ERROR_NOT_UNREGISTERED: | |
| 67 return "not unregistered"; | |
| 68 default: | |
| 69 return "unknown"; | |
| 70 } | |
| 71 } | |
| 72 | |
| 73 // A dummy error callback for calling Unregister() in destructor. | |
| 74 void UnregisterErrorCallback( | |
| 75 device::BluetoothAudioSink::ErrorCode error_code) { | |
| 76 VLOG(1) << "UnregisterErrorCallback - " << ErrorCodeToString(error_code) | |
| 77 << "(" << error_code << ")"; | |
| 78 } | |
| 79 | |
| 80 } // namespace | |
| 81 | |
| 82 namespace chromeos { | |
| 83 | |
| 84 BluetoothAudioSinkChromeOS::BluetoothAudioSinkChromeOS( | |
| 85 scoped_refptr<device::BluetoothAdapter> adapter) | |
| 86 : state_(BluetoothAudioSink::STATE_INVALID), | |
| 87 volume_(BluetoothAudioSink::kInvalidVolume), | |
| 88 read_mtu_(kInvalidReadMtu), | |
| 89 write_mtu_(kInvalidWriteMtu), | |
| 90 read_has_failed_(false), | |
| 91 adapter_(adapter), | |
| 92 weak_ptr_factory_(this) { | |
| 93 VLOG(1) << "BluetoothAudioSinkChromeOS created"; | |
| 94 | |
| 95 CHECK(adapter_.get()); | |
| 96 CHECK(adapter_->IsPresent()); | |
| 97 CHECK(bluez::BluezDBusManager::IsInitialized()); | |
| 98 | |
| 99 adapter_->AddObserver(this); | |
| 100 | |
| 101 bluez::BluetoothMediaClient* media = | |
| 102 bluez::BluezDBusManager::Get()->GetBluetoothMediaClient(); | |
| 103 CHECK(media); | |
| 104 media->AddObserver(this); | |
| 105 | |
| 106 bluez::BluetoothMediaTransportClient* transport = | |
| 107 bluez::BluezDBusManager::Get()->GetBluetoothMediaTransportClient(); | |
| 108 CHECK(transport); | |
| 109 transport->AddObserver(this); | |
| 110 | |
| 111 StateChanged(device::BluetoothAudioSink::STATE_DISCONNECTED); | |
| 112 } | |
| 113 | |
| 114 BluetoothAudioSinkChromeOS::~BluetoothAudioSinkChromeOS() { | |
| 115 VLOG(1) << "BluetoothAudioSinkChromeOS destroyed"; | |
| 116 | |
| 117 DCHECK(adapter_.get()); | |
| 118 | |
| 119 if (state_ != BluetoothAudioSink::STATE_INVALID && media_endpoint_.get()) { | |
| 120 Unregister(base::Bind(&base::DoNothing), | |
| 121 base::Bind(&UnregisterErrorCallback)); | |
| 122 } | |
| 123 | |
| 124 adapter_->RemoveObserver(this); | |
| 125 | |
| 126 bluez::BluetoothMediaClient* media = | |
| 127 bluez::BluezDBusManager::Get()->GetBluetoothMediaClient(); | |
| 128 CHECK(media); | |
| 129 media->RemoveObserver(this); | |
| 130 | |
| 131 bluez::BluetoothMediaTransportClient* transport = | |
| 132 bluez::BluezDBusManager::Get()->GetBluetoothMediaTransportClient(); | |
| 133 CHECK(transport); | |
| 134 transport->RemoveObserver(this); | |
| 135 } | |
| 136 | |
| 137 void BluetoothAudioSinkChromeOS::Unregister( | |
| 138 const base::Closure& callback, | |
| 139 const device::BluetoothAudioSink::ErrorCallback& error_callback) { | |
| 140 VLOG(1) << "Unregister"; | |
| 141 | |
| 142 if (!bluez::BluezDBusManager::IsInitialized()) | |
| 143 error_callback.Run(BluetoothAudioSink::ERROR_NOT_UNREGISTERED); | |
| 144 | |
| 145 bluez::BluetoothMediaClient* media = | |
| 146 bluez::BluezDBusManager::Get()->GetBluetoothMediaClient(); | |
| 147 CHECK(media); | |
| 148 | |
| 149 media->UnregisterEndpoint( | |
| 150 media_path_, | |
| 151 endpoint_path_, | |
| 152 base::Bind(&BluetoothAudioSinkChromeOS::OnUnregisterSucceeded, | |
| 153 weak_ptr_factory_.GetWeakPtr(), callback), | |
| 154 base::Bind(&BluetoothAudioSinkChromeOS::OnUnregisterFailed, | |
| 155 weak_ptr_factory_.GetWeakPtr(), error_callback)); | |
| 156 } | |
| 157 | |
| 158 void BluetoothAudioSinkChromeOS::AddObserver( | |
| 159 BluetoothAudioSink::Observer* observer) { | |
| 160 CHECK(observer); | |
| 161 observers_.AddObserver(observer); | |
| 162 } | |
| 163 | |
| 164 void BluetoothAudioSinkChromeOS::RemoveObserver( | |
| 165 BluetoothAudioSink::Observer* observer) { | |
| 166 CHECK(observer); | |
| 167 observers_.RemoveObserver(observer); | |
| 168 } | |
| 169 | |
| 170 BluetoothAudioSink::State BluetoothAudioSinkChromeOS::GetState() const { | |
| 171 return state_; | |
| 172 } | |
| 173 | |
| 174 uint16_t BluetoothAudioSinkChromeOS::GetVolume() const { | |
| 175 return volume_; | |
| 176 } | |
| 177 | |
| 178 void BluetoothAudioSinkChromeOS::Register( | |
| 179 const BluetoothAudioSink::Options& options, | |
| 180 const base::Closure& callback, | |
| 181 const BluetoothAudioSink::ErrorCallback& error_callback) { | |
| 182 VLOG(1) << "Register"; | |
| 183 | |
| 184 DCHECK(adapter_.get()); | |
| 185 DCHECK_EQ(state_, BluetoothAudioSink::STATE_DISCONNECTED); | |
| 186 | |
| 187 // Gets system bus. | |
| 188 dbus::Bus* system_bus = bluez::BluezDBusManager::Get()->GetSystemBus(); | |
| 189 | |
| 190 // Creates a Media Endpoint with newly-generated path. | |
| 191 endpoint_path_ = GenerateEndpointPath(); | |
| 192 media_endpoint_.reset(bluez::BluetoothMediaEndpointServiceProvider::Create( | |
| 193 system_bus, endpoint_path_, this)); | |
| 194 | |
| 195 DCHECK(media_endpoint_.get()); | |
| 196 | |
| 197 // Creates endpoint properties with |options|. | |
| 198 options_ = options; | |
| 199 bluez::BluetoothMediaClient::EndpointProperties endpoint_properties; | |
| 200 endpoint_properties.uuid = | |
| 201 bluez::BluetoothMediaClient::kBluetoothAudioSinkUUID; | |
| 202 endpoint_properties.codec = options_.codec; | |
| 203 endpoint_properties.capabilities = options_.capabilities; | |
| 204 | |
| 205 media_path_ = static_cast<BluetoothAdapterChromeOS*>( | |
| 206 adapter_.get())->object_path(); | |
| 207 | |
| 208 bluez::BluetoothMediaClient* media = | |
| 209 bluez::BluezDBusManager::Get()->GetBluetoothMediaClient(); | |
| 210 CHECK(media); | |
| 211 media->RegisterEndpoint( | |
| 212 media_path_, | |
| 213 endpoint_path_, | |
| 214 endpoint_properties, | |
| 215 base::Bind(&BluetoothAudioSinkChromeOS::OnRegisterSucceeded, | |
| 216 weak_ptr_factory_.GetWeakPtr(), callback), | |
| 217 base::Bind(&BluetoothAudioSinkChromeOS::OnRegisterFailed, | |
| 218 weak_ptr_factory_.GetWeakPtr(), error_callback)); | |
| 219 } | |
| 220 | |
| 221 bluez::BluetoothMediaEndpointServiceProvider* | |
| 222 BluetoothAudioSinkChromeOS::GetEndpointServiceProvider() { | |
| 223 return media_endpoint_.get(); | |
| 224 } | |
| 225 | |
| 226 void BluetoothAudioSinkChromeOS::AdapterPresentChanged( | |
| 227 device::BluetoothAdapter* adapter, bool present) { | |
| 228 VLOG(1) << "AdapterPresentChanged: " << present; | |
| 229 | |
| 230 if (adapter != adapter_.get()) | |
| 231 return; | |
| 232 | |
| 233 if (adapter->IsPresent()) { | |
| 234 StateChanged(BluetoothAudioSink::STATE_DISCONNECTED); | |
| 235 } else { | |
| 236 adapter_->RemoveObserver(this); | |
| 237 StateChanged(BluetoothAudioSink::STATE_INVALID); | |
| 238 } | |
| 239 } | |
| 240 | |
| 241 void BluetoothAudioSinkChromeOS::AdapterPoweredChanged( | |
| 242 device::BluetoothAdapter* adapter, bool powered) { | |
| 243 VLOG(1) << "AdapterPoweredChanged: " << powered; | |
| 244 | |
| 245 if (adapter != adapter_.get()) | |
| 246 return; | |
| 247 | |
| 248 // Regardless of the new powered state, |state_| goes to STATE_DISCONNECTED. | |
| 249 // If false, the transport is closed, but the endpoint is still valid for use. | |
| 250 // If true, the previous transport has been torn down, so the |state_| has to | |
| 251 // be disconnected before SetConfigruation is called. | |
| 252 if (state_ != BluetoothAudioSink::STATE_INVALID) | |
| 253 StateChanged(BluetoothAudioSink::STATE_DISCONNECTED); | |
| 254 } | |
| 255 | |
| 256 void BluetoothAudioSinkChromeOS::MediaRemoved(const ObjectPath& object_path) { | |
| 257 if (object_path == media_path_) { | |
| 258 VLOG(1) << "MediaRemoved: " << object_path.value(); | |
| 259 StateChanged(BluetoothAudioSink::STATE_INVALID); | |
| 260 } | |
| 261 } | |
| 262 | |
| 263 void BluetoothAudioSinkChromeOS::MediaTransportRemoved( | |
| 264 const ObjectPath& object_path) { | |
| 265 // Whenever powered of |adapter_| turns false while present stays true, media | |
| 266 // transport object should be removed accordingly, and the state should be | |
| 267 // changed to STATE_DISCONNECTED. | |
| 268 if (object_path == transport_path_) { | |
| 269 VLOG(1) << "MediaTransportRemoved: " << object_path.value(); | |
| 270 StateChanged(BluetoothAudioSink::STATE_DISCONNECTED); | |
| 271 } | |
| 272 } | |
| 273 | |
| 274 void BluetoothAudioSinkChromeOS::MediaTransportPropertyChanged( | |
| 275 const ObjectPath& object_path, | |
| 276 const std::string& property_name) { | |
| 277 if (object_path != transport_path_) | |
| 278 return; | |
| 279 | |
| 280 VLOG(1) << "MediaTransportPropertyChanged: " << property_name; | |
| 281 | |
| 282 // Retrieves the property set of the transport object with |object_path|. | |
| 283 bluez::BluetoothMediaTransportClient::Properties* properties = | |
| 284 bluez::BluezDBusManager::Get() | |
| 285 ->GetBluetoothMediaTransportClient() | |
| 286 ->GetProperties(object_path); | |
| 287 | |
| 288 // Dispatches a property changed event to the corresponding handler. | |
| 289 if (property_name == properties->state.name()) { | |
| 290 if (properties->state.value() == | |
| 291 bluez::BluetoothMediaTransportClient::kStateIdle) { | |
| 292 StateChanged(BluetoothAudioSink::STATE_IDLE); | |
| 293 } else if (properties->state.value() == | |
| 294 bluez::BluetoothMediaTransportClient::kStatePending) { | |
| 295 StateChanged(BluetoothAudioSink::STATE_PENDING); | |
| 296 } else if (properties->state.value() == | |
| 297 bluez::BluetoothMediaTransportClient::kStateActive) { | |
| 298 StateChanged(BluetoothAudioSink::STATE_ACTIVE); | |
| 299 } | |
| 300 } else if (property_name == properties->volume.name()) { | |
| 301 VolumeChanged(properties->volume.value()); | |
| 302 } | |
| 303 } | |
| 304 | |
| 305 void BluetoothAudioSinkChromeOS::SetConfiguration( | |
| 306 const ObjectPath& transport_path, | |
| 307 const TransportProperties& properties) { | |
| 308 VLOG(1) << "SetConfiguration"; | |
| 309 transport_path_ = transport_path; | |
| 310 | |
| 311 // The initial state for a connection should be "idle". | |
| 312 if (properties.state != bluez::BluetoothMediaTransportClient::kStateIdle) { | |
| 313 VLOG(1) << "SetConfiugration - unexpected state :" << properties.state; | |
| 314 return; | |
| 315 } | |
| 316 | |
| 317 // Updates |volume_| if the volume level is provided in |properties|. | |
| 318 if (properties.volume.get()) { | |
| 319 VolumeChanged(*properties.volume); | |
| 320 } | |
| 321 | |
| 322 StateChanged(BluetoothAudioSink::STATE_IDLE); | |
| 323 } | |
| 324 | |
| 325 void BluetoothAudioSinkChromeOS::SelectConfiguration( | |
| 326 const std::vector<uint8_t>& capabilities, | |
| 327 const SelectConfigurationCallback& callback) { | |
| 328 VLOG(1) << "SelectConfiguration"; | |
| 329 callback.Run(options_.capabilities); | |
| 330 } | |
| 331 | |
| 332 void BluetoothAudioSinkChromeOS::ClearConfiguration( | |
| 333 const ObjectPath& transport_path) { | |
| 334 if (transport_path != transport_path_) | |
| 335 return; | |
| 336 | |
| 337 VLOG(1) << "ClearConfiguration"; | |
| 338 StateChanged(BluetoothAudioSink::STATE_DISCONNECTED); | |
| 339 } | |
| 340 | |
| 341 void BluetoothAudioSinkChromeOS::Released() { | |
| 342 VLOG(1) << "Released"; | |
| 343 StateChanged(BluetoothAudioSink::STATE_INVALID); | |
| 344 } | |
| 345 | |
| 346 void BluetoothAudioSinkChromeOS::OnFileCanReadWithoutBlocking(int fd) { | |
| 347 ReadFromFile(); | |
| 348 } | |
| 349 | |
| 350 void BluetoothAudioSinkChromeOS::OnFileCanWriteWithoutBlocking(int fd) { | |
| 351 // Do nothing for now. | |
| 352 } | |
| 353 | |
| 354 void BluetoothAudioSinkChromeOS::AcquireFD() { | |
| 355 VLOG(1) << "AcquireFD - transport path: " << transport_path_.value(); | |
| 356 | |
| 357 read_has_failed_ = false; | |
| 358 | |
| 359 bluez::BluezDBusManager::Get()->GetBluetoothMediaTransportClient()->Acquire( | |
| 360 transport_path_, | |
| 361 base::Bind(&BluetoothAudioSinkChromeOS::OnAcquireSucceeded, | |
| 362 weak_ptr_factory_.GetWeakPtr()), | |
| 363 base::Bind(&BluetoothAudioSinkChromeOS::OnAcquireFailed, | |
| 364 weak_ptr_factory_.GetWeakPtr())); | |
| 365 } | |
| 366 | |
| 367 void BluetoothAudioSinkChromeOS::WatchFD() { | |
| 368 CHECK(file_.get() && file_->IsValid()); | |
| 369 | |
| 370 VLOG(1) << "WatchFD - file: " << file_->GetPlatformFile() | |
| 371 << ", file validity: " << file_->IsValid(); | |
| 372 | |
| 373 base::MessageLoopForIO::current()->WatchFileDescriptor( | |
| 374 file_->GetPlatformFile(), true, base::MessageLoopForIO::WATCH_READ, | |
| 375 &fd_read_watcher_, this); | |
| 376 } | |
| 377 | |
| 378 void BluetoothAudioSinkChromeOS::StopWatchingFD() { | |
| 379 if (!file_.get()) { | |
| 380 VLOG(1) << "StopWatchingFD - skip"; | |
| 381 return; | |
| 382 } | |
| 383 | |
| 384 bool stopped = fd_read_watcher_.StopWatchingFileDescriptor(); | |
| 385 VLOG(1) << "StopWatchingFD - watch stopped: " << stopped; | |
| 386 CHECK(stopped); | |
| 387 | |
| 388 read_mtu_ = kInvalidReadMtu; | |
| 389 write_mtu_ = kInvalidWriteMtu; | |
| 390 file_.reset(); // This will close the file descriptor. | |
| 391 } | |
| 392 | |
| 393 void BluetoothAudioSinkChromeOS::ReadFromFile() { | |
| 394 DCHECK(file_.get() && file_->IsValid()); | |
| 395 DCHECK(data_.get()); | |
| 396 | |
| 397 int size = file_->ReadAtCurrentPosNoBestEffort(data_.get(), read_mtu_); | |
| 398 | |
| 399 if (size == -1) { | |
| 400 // To reduce the number of logs, log only once for multiple failures. | |
| 401 if (!read_has_failed_) { | |
| 402 VLOG(1) << "ReadFromFile - failed"; | |
| 403 read_has_failed_ = true; | |
| 404 } | |
| 405 return; | |
| 406 } | |
| 407 | |
| 408 VLOG(1) << "ReadFromFile - read " << size << " bytes"; | |
| 409 FOR_EACH_OBSERVER( | |
| 410 BluetoothAudioSink::Observer, observers_, | |
| 411 BluetoothAudioSinkDataAvailable(this, data_.get(), size, read_mtu_)); | |
| 412 } | |
| 413 | |
| 414 void BluetoothAudioSinkChromeOS::StateChanged( | |
| 415 BluetoothAudioSink::State state) { | |
| 416 if (state == state_) | |
| 417 return; | |
| 418 | |
| 419 VLOG(1) << "StateChanged - state: " << StateToString(state); | |
| 420 | |
| 421 switch (state) { | |
| 422 case BluetoothAudioSink::STATE_INVALID: | |
| 423 ResetMedia(); | |
| 424 ResetEndpoint(); | |
| 425 case BluetoothAudioSink::STATE_DISCONNECTED: | |
| 426 ResetTransport(); | |
| 427 break; | |
| 428 case BluetoothAudioSink::STATE_IDLE: | |
| 429 StopWatchingFD(); | |
| 430 break; | |
| 431 case BluetoothAudioSink::STATE_PENDING: | |
| 432 AcquireFD(); | |
| 433 break; | |
| 434 case BluetoothAudioSink::STATE_ACTIVE: | |
| 435 WatchFD(); | |
| 436 break; | |
| 437 default: | |
| 438 break; | |
| 439 } | |
| 440 | |
| 441 state_ = state; | |
| 442 FOR_EACH_OBSERVER(BluetoothAudioSink::Observer, observers_, | |
| 443 BluetoothAudioSinkStateChanged(this, state_)); | |
| 444 } | |
| 445 | |
| 446 void BluetoothAudioSinkChromeOS::VolumeChanged(uint16_t volume) { | |
| 447 if (volume == volume_) | |
| 448 return; | |
| 449 | |
| 450 VLOG(1) << "VolumeChanged: " << volume; | |
| 451 | |
| 452 volume_ = std::min(volume, BluetoothAudioSink::kInvalidVolume); | |
| 453 FOR_EACH_OBSERVER(BluetoothAudioSink::Observer, observers_, | |
| 454 BluetoothAudioSinkVolumeChanged(this, volume_)); | |
| 455 } | |
| 456 | |
| 457 void BluetoothAudioSinkChromeOS::OnRegisterSucceeded( | |
| 458 const base::Closure& callback) { | |
| 459 DCHECK(media_endpoint_.get()); | |
| 460 VLOG(1) << "OnRegisterSucceeded"; | |
| 461 | |
| 462 StateChanged(BluetoothAudioSink::STATE_DISCONNECTED); | |
| 463 callback.Run(); | |
| 464 } | |
| 465 | |
| 466 void BluetoothAudioSinkChromeOS::OnRegisterFailed( | |
| 467 const BluetoothAudioSink::ErrorCallback& error_callback, | |
| 468 const std::string& error_name, | |
| 469 const std::string& error_message) { | |
| 470 VLOG(1) << "OnRegisterFailed - error name: " << error_name | |
| 471 << ", error message: " << error_message; | |
| 472 | |
| 473 ResetEndpoint(); | |
| 474 error_callback.Run(BluetoothAudioSink::ERROR_NOT_REGISTERED); | |
| 475 } | |
| 476 | |
| 477 void BluetoothAudioSinkChromeOS::OnUnregisterSucceeded( | |
| 478 const base::Closure& callback) { | |
| 479 VLOG(1) << "Unregistered - endpoint: " << endpoint_path_.value(); | |
| 480 | |
| 481 // Once the state becomes STATE_INVALID, media, media transport and media | |
| 482 // endpoint will be reset. | |
| 483 StateChanged(BluetoothAudioSink::STATE_INVALID); | |
| 484 callback.Run(); | |
| 485 } | |
| 486 | |
| 487 void BluetoothAudioSinkChromeOS::OnUnregisterFailed( | |
| 488 const device::BluetoothAudioSink::ErrorCallback& error_callback, | |
| 489 const std::string& error_name, | |
| 490 const std::string& error_message) { | |
| 491 VLOG(1) << "OnUnregisterFailed - error name: " << error_name | |
| 492 << ", error message: " << error_message; | |
| 493 | |
| 494 error_callback.Run(BluetoothAudioSink::ERROR_NOT_UNREGISTERED); | |
| 495 } | |
| 496 | |
| 497 void BluetoothAudioSinkChromeOS::OnAcquireSucceeded( | |
| 498 dbus::FileDescriptor* fd, | |
| 499 const uint16_t read_mtu, | |
| 500 const uint16_t write_mtu) { | |
| 501 CHECK(fd); | |
| 502 fd->CheckValidity(); | |
| 503 CHECK(fd->is_valid() && fd->value() != kInvalidFd); | |
| 504 CHECK_GT(read_mtu, kInvalidReadMtu); | |
| 505 CHECK_GT(write_mtu, kInvalidWriteMtu); | |
| 506 | |
| 507 // Avoids unnecessary memory reallocation if read MTU doesn't change. | |
| 508 if (read_mtu != read_mtu_) { | |
| 509 read_mtu_ = read_mtu; | |
| 510 data_.reset(new char[read_mtu_]); | |
| 511 VLOG(1) << "OnAcquireSucceeded - allocate " << read_mtu_ | |
| 512 << " bytes of memory"; | |
| 513 } | |
| 514 | |
| 515 write_mtu_ = write_mtu; | |
| 516 | |
| 517 // Avoids closing the same file descriptor caused by reassignment. | |
| 518 if (!file_.get() || file_->GetPlatformFile() != fd->value()) { | |
| 519 // Takes ownership of the file descriptor. | |
| 520 file_.reset(new base::File(fd->TakeValue())); | |
| 521 DCHECK(file_->IsValid()); | |
| 522 VLOG(1) << "OnAcquireSucceeded - update file"; | |
| 523 } | |
| 524 | |
| 525 VLOG(1) << "OnAcquireSucceeded - file: " << file_->GetPlatformFile() | |
| 526 << ", read MTU: " << read_mtu_ << ", write MTU: " << write_mtu_; | |
| 527 } | |
| 528 | |
| 529 void BluetoothAudioSinkChromeOS::OnAcquireFailed( | |
| 530 const std::string& error_name, | |
| 531 const std::string& error_message) { | |
| 532 VLOG(1) << "OnAcquireFailed - error name: " << error_name | |
| 533 << ", error message: " << error_message; | |
| 534 } | |
| 535 | |
| 536 void BluetoothAudioSinkChromeOS::OnReleaseFDSucceeded() { | |
| 537 VLOG(1) << "OnReleaseFDSucceeded"; | |
| 538 } | |
| 539 | |
| 540 void BluetoothAudioSinkChromeOS::OnReleaseFDFailed( | |
| 541 const std::string& error_name, | |
| 542 const std::string& error_message) { | |
| 543 VLOG(1) << "OnReleaseFDFailed - error name: " << error_name | |
| 544 << ", error message: " << error_message; | |
| 545 } | |
| 546 | |
| 547 void BluetoothAudioSinkChromeOS::ResetMedia() { | |
| 548 VLOG(1) << "ResetMedia"; | |
| 549 | |
| 550 media_path_ = dbus::ObjectPath(""); | |
| 551 } | |
| 552 | |
| 553 void BluetoothAudioSinkChromeOS::ResetTransport() { | |
| 554 if (!transport_path_.IsValid()) { | |
| 555 VLOG(1) << "ResetTransport - skip"; | |
| 556 return; | |
| 557 } | |
| 558 | |
| 559 VLOG(1) << "ResetTransport - clean-up"; | |
| 560 | |
| 561 VolumeChanged(BluetoothAudioSink::kInvalidVolume); | |
| 562 transport_path_ = dbus::ObjectPath(""); | |
| 563 read_mtu_ = kInvalidReadMtu; | |
| 564 write_mtu_ = kInvalidWriteMtu; | |
| 565 file_.reset(); | |
| 566 } | |
| 567 | |
| 568 void BluetoothAudioSinkChromeOS::ResetEndpoint() { | |
| 569 VLOG(1) << "ResetEndpoint"; | |
| 570 | |
| 571 endpoint_path_ = ObjectPath(""); | |
| 572 media_endpoint_ = nullptr; | |
| 573 } | |
| 574 | |
| 575 } // namespace chromeos | |
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Chromium Code Reviews
Issue 1415573014:
Reland "Add Linux support for the Bluetooth API" (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master