1 /* 2 * Copyright (C) 2009 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 17 #define LOG_TAG "AudioPolicyManager" 18 //#define LOG_NDEBUG 0 19 20 //#define VERY_VERBOSE_LOGGING 21 #ifdef VERY_VERBOSE_LOGGING 22 #define ALOGVV ALOGV 23 #else 24 #define ALOGVV(a...) do { } while(0) 25 #endif 26 27 // A device mask for all audio input devices that are considered "virtual" when evaluating 28 // active inputs in getActiveInput() 29 #define APM_AUDIO_IN_DEVICE_VIRTUAL_ALL (AUDIO_DEVICE_IN_REMOTE_SUBMIX|AUDIO_DEVICE_IN_FM_TUNER) 30 // A device mask for all audio output devices that are considered "remote" when evaluating 31 // active output devices in isStreamActiveRemotely() 32 #define APM_AUDIO_OUT_DEVICE_REMOTE_ALL AUDIO_DEVICE_OUT_REMOTE_SUBMIX 33 // A device mask for all audio input and output devices where matching inputs/outputs on device 34 // type alone is not enough: the address must match too 35 #define APM_AUDIO_DEVICE_MATCH_ADDRESS_ALL (AUDIO_DEVICE_IN_REMOTE_SUBMIX | \ 36 AUDIO_DEVICE_OUT_REMOTE_SUBMIX) 37 38 #include <inttypes.h> 39 #include <math.h> 40 41 #include <cutils/properties.h> 42 #include <utils/Log.h> 43 #include <hardware/audio.h> 44 #include <hardware/audio_effect.h> 45 #include <media/AudioParameter.h> 46 #include <media/AudioPolicyHelper.h> 47 #include <soundtrigger/SoundTrigger.h> 48 #include "AudioPolicyManager.h" 49 #include "audio_policy_conf.h" 50 51 namespace android { 52 53 // ---------------------------------------------------------------------------- 54 // Definitions for audio_policy.conf file parsing 55 // ---------------------------------------------------------------------------- 56 57 struct StringToEnum { 58 const char *name; 59 uint32_t value; 60 }; 61 62 #define STRING_TO_ENUM(string) { #string, string } 63 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) 64 65 const StringToEnum sDeviceNameToEnumTable[] = { 66 STRING_TO_ENUM(AUDIO_DEVICE_OUT_EARPIECE), 67 STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPEAKER), 68 STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPEAKER_SAFE), 69 STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADSET), 70 STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADPHONE), 71 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO), 72 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET), 73 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT), 74 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_SCO), 75 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP), 76 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES), 77 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER), 78 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_A2DP), 79 STRING_TO_ENUM(AUDIO_DEVICE_OUT_AUX_DIGITAL), 80 STRING_TO_ENUM(AUDIO_DEVICE_OUT_HDMI), 81 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET), 82 STRING_TO_ENUM(AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET), 83 STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_ACCESSORY), 84 STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_DEVICE), 85 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_USB), 86 STRING_TO_ENUM(AUDIO_DEVICE_OUT_REMOTE_SUBMIX), 87 STRING_TO_ENUM(AUDIO_DEVICE_OUT_TELEPHONY_TX), 88 STRING_TO_ENUM(AUDIO_DEVICE_OUT_LINE), 89 STRING_TO_ENUM(AUDIO_DEVICE_OUT_HDMI_ARC), 90 STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPDIF), 91 STRING_TO_ENUM(AUDIO_DEVICE_OUT_FM), 92 STRING_TO_ENUM(AUDIO_DEVICE_OUT_AUX_LINE), 93 STRING_TO_ENUM(AUDIO_DEVICE_IN_AMBIENT), 94 STRING_TO_ENUM(AUDIO_DEVICE_IN_BUILTIN_MIC), 95 STRING_TO_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET), 96 STRING_TO_ENUM(AUDIO_DEVICE_IN_ALL_SCO), 97 STRING_TO_ENUM(AUDIO_DEVICE_IN_WIRED_HEADSET), 98 STRING_TO_ENUM(AUDIO_DEVICE_IN_AUX_DIGITAL), 99 STRING_TO_ENUM(AUDIO_DEVICE_IN_HDMI), 100 STRING_TO_ENUM(AUDIO_DEVICE_IN_TELEPHONY_RX), 101 STRING_TO_ENUM(AUDIO_DEVICE_IN_VOICE_CALL), 102 STRING_TO_ENUM(AUDIO_DEVICE_IN_BACK_MIC), 103 STRING_TO_ENUM(AUDIO_DEVICE_IN_REMOTE_SUBMIX), 104 STRING_TO_ENUM(AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET), 105 STRING_TO_ENUM(AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET), 106 STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_ACCESSORY), 107 STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_DEVICE), 108 STRING_TO_ENUM(AUDIO_DEVICE_IN_FM_TUNER), 109 STRING_TO_ENUM(AUDIO_DEVICE_IN_TV_TUNER), 110 STRING_TO_ENUM(AUDIO_DEVICE_IN_LINE), 111 STRING_TO_ENUM(AUDIO_DEVICE_IN_SPDIF), 112 STRING_TO_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_A2DP), 113 STRING_TO_ENUM(AUDIO_DEVICE_IN_LOOPBACK), 114 }; 115 116 const StringToEnum sOutputFlagNameToEnumTable[] = { 117 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DIRECT), 118 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_PRIMARY), 119 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_FAST), 120 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DEEP_BUFFER), 121 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD), 122 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_NON_BLOCKING), 123 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_HW_AV_SYNC), 124 }; 125 126 const StringToEnum sInputFlagNameToEnumTable[] = { 127 STRING_TO_ENUM(AUDIO_INPUT_FLAG_FAST), 128 STRING_TO_ENUM(AUDIO_INPUT_FLAG_HW_HOTWORD), 129 }; 130 131 const StringToEnum sFormatNameToEnumTable[] = { 132 STRING_TO_ENUM(AUDIO_FORMAT_PCM_16_BIT), 133 STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_BIT), 134 STRING_TO_ENUM(AUDIO_FORMAT_PCM_32_BIT), 135 STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_24_BIT), 136 STRING_TO_ENUM(AUDIO_FORMAT_PCM_FLOAT), 137 STRING_TO_ENUM(AUDIO_FORMAT_PCM_24_BIT_PACKED), 138 STRING_TO_ENUM(AUDIO_FORMAT_MP3), 139 STRING_TO_ENUM(AUDIO_FORMAT_AAC), 140 STRING_TO_ENUM(AUDIO_FORMAT_AAC_MAIN), 141 STRING_TO_ENUM(AUDIO_FORMAT_AAC_LC), 142 STRING_TO_ENUM(AUDIO_FORMAT_AAC_SSR), 143 STRING_TO_ENUM(AUDIO_FORMAT_AAC_LTP), 144 STRING_TO_ENUM(AUDIO_FORMAT_AAC_HE_V1), 145 STRING_TO_ENUM(AUDIO_FORMAT_AAC_SCALABLE), 146 STRING_TO_ENUM(AUDIO_FORMAT_AAC_ERLC), 147 STRING_TO_ENUM(AUDIO_FORMAT_AAC_LD), 148 STRING_TO_ENUM(AUDIO_FORMAT_AAC_HE_V2), 149 STRING_TO_ENUM(AUDIO_FORMAT_AAC_ELD), 150 STRING_TO_ENUM(AUDIO_FORMAT_VORBIS), 151 STRING_TO_ENUM(AUDIO_FORMAT_HE_AAC_V1), 152 STRING_TO_ENUM(AUDIO_FORMAT_HE_AAC_V2), 153 STRING_TO_ENUM(AUDIO_FORMAT_OPUS), 154 STRING_TO_ENUM(AUDIO_FORMAT_AC3), 155 STRING_TO_ENUM(AUDIO_FORMAT_E_AC3), 156 }; 157 158 const StringToEnum sOutChannelsNameToEnumTable[] = { 159 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_MONO), 160 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_STEREO), 161 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_QUAD), 162 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_5POINT1), 163 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_7POINT1), 164 }; 165 166 const StringToEnum sInChannelsNameToEnumTable[] = { 167 STRING_TO_ENUM(AUDIO_CHANNEL_IN_MONO), 168 STRING_TO_ENUM(AUDIO_CHANNEL_IN_STEREO), 169 STRING_TO_ENUM(AUDIO_CHANNEL_IN_FRONT_BACK), 170 }; 171 172 const StringToEnum sGainModeNameToEnumTable[] = { 173 STRING_TO_ENUM(AUDIO_GAIN_MODE_JOINT), 174 STRING_TO_ENUM(AUDIO_GAIN_MODE_CHANNELS), 175 STRING_TO_ENUM(AUDIO_GAIN_MODE_RAMP), 176 }; 177 178 179 uint32_t AudioPolicyManager::stringToEnum(const struct StringToEnum *table, 180 size_t size, 181 const char *name) 182 { 183 for (size_t i = 0; i < size; i++) { 184 if (strcmp(table[i].name, name) == 0) { 185 ALOGV("stringToEnum() found %s", table[i].name); 186 return table[i].value; 187 } 188 } 189 return 0; 190 } 191 192 const char *AudioPolicyManager::enumToString(const struct StringToEnum *table, 193 size_t size, 194 uint32_t value) 195 { 196 for (size_t i = 0; i < size; i++) { 197 if (table[i].value == value) { 198 return table[i].name; 199 } 200 } 201 return ""; 202 } 203 204 bool AudioPolicyManager::stringToBool(const char *value) 205 { 206 return ((strcasecmp("true", value) == 0) || (strcmp("1", value) == 0)); 207 } 208 209 210 // ---------------------------------------------------------------------------- 211 // AudioPolicyInterface implementation 212 // ---------------------------------------------------------------------------- 213 214 status_t AudioPolicyManager::setDeviceConnectionState(audio_devices_t device, 215 audio_policy_dev_state_t state, 216 const char *device_address) 217 { 218 return setDeviceConnectionStateInt(device, state, device_address); 219 } 220 221 status_t AudioPolicyManager::setDeviceConnectionStateInt(audio_devices_t device, 222 audio_policy_dev_state_t state, 223 const char *device_address) 224 { 225 ALOGV("setDeviceConnectionState() device: %x, state %d, address %s", 226 device, state, device_address != NULL ? device_address : ""); 227 228 // connect/disconnect only 1 device at a time 229 if (!audio_is_output_device(device) && !audio_is_input_device(device)) return BAD_VALUE; 230 231 sp<DeviceDescriptor> devDesc = getDeviceDescriptor(device, device_address); 232 233 // handle output devices 234 if (audio_is_output_device(device)) { 235 SortedVector <audio_io_handle_t> outputs; 236 237 ssize_t index = mAvailableOutputDevices.indexOf(devDesc); 238 239 // save a copy of the opened output descriptors before any output is opened or closed 240 // by checkOutputsForDevice(). This will be needed by checkOutputForAllStrategies() 241 mPreviousOutputs = mOutputs; 242 switch (state) 243 { 244 // handle output device connection 245 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: { 246 if (index >= 0) { 247 ALOGW("setDeviceConnectionState() device already connected: %x", device); 248 return INVALID_OPERATION; 249 } 250 ALOGV("setDeviceConnectionState() connecting device %x", device); 251 252 // register new device as available 253 index = mAvailableOutputDevices.add(devDesc); 254 if (index >= 0) { 255 sp<HwModule> module = getModuleForDevice(device); 256 if (module == 0) { 257 ALOGD("setDeviceConnectionState() could not find HW module for device %08x", 258 device); 259 mAvailableOutputDevices.remove(devDesc); 260 return INVALID_OPERATION; 261 } 262 mAvailableOutputDevices[index]->mId = nextUniqueId(); 263 mAvailableOutputDevices[index]->mModule = module; 264 } else { 265 return NO_MEMORY; 266 } 267 268 if (checkOutputsForDevice(devDesc, state, outputs, devDesc->mAddress) != NO_ERROR) { 269 mAvailableOutputDevices.remove(devDesc); 270 return INVALID_OPERATION; 271 } 272 // outputs should never be empty here 273 ALOG_ASSERT(outputs.size() != 0, "setDeviceConnectionState():" 274 "checkOutputsForDevice() returned no outputs but status OK"); 275 ALOGV("setDeviceConnectionState() checkOutputsForDevice() returned %zu outputs", 276 outputs.size()); 277 278 279 // Set connect to HALs 280 AudioParameter param = AudioParameter(devDesc->mAddress); 281 param.addInt(String8(AUDIO_PARAMETER_DEVICE_CONNECT), device); 282 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 283 284 } break; 285 // handle output device disconnection 286 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 287 if (index < 0) { 288 ALOGW("setDeviceConnectionState() device not connected: %x", device); 289 return INVALID_OPERATION; 290 } 291 292 ALOGV("setDeviceConnectionState() disconnecting output device %x", device); 293 294 // Set Disconnect to HALs 295 AudioParameter param = AudioParameter(devDesc->mAddress); 296 param.addInt(String8(AUDIO_PARAMETER_DEVICE_DISCONNECT), device); 297 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 298 299 // remove device from available output devices 300 mAvailableOutputDevices.remove(devDesc); 301 302 checkOutputsForDevice(devDesc, state, outputs, devDesc->mAddress); 303 } break; 304 305 default: 306 ALOGE("setDeviceConnectionState() invalid state: %x", state); 307 return BAD_VALUE; 308 } 309 310 // checkA2dpSuspend must run before checkOutputForAllStrategies so that A2DP 311 // output is suspended before any tracks are moved to it 312 checkA2dpSuspend(); 313 checkOutputForAllStrategies(); 314 // outputs must be closed after checkOutputForAllStrategies() is executed 315 if (!outputs.isEmpty()) { 316 for (size_t i = 0; i < outputs.size(); i++) { 317 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 318 // close unused outputs after device disconnection or direct outputs that have been 319 // opened by checkOutputsForDevice() to query dynamic parameters 320 if ((state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) || 321 (((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) && 322 (desc->mDirectOpenCount == 0))) { 323 closeOutput(outputs[i]); 324 } 325 } 326 // check again after closing A2DP output to reset mA2dpSuspended if needed 327 checkA2dpSuspend(); 328 } 329 330 updateDevicesAndOutputs(); 331 if (mPhoneState == AUDIO_MODE_IN_CALL) { 332 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 333 updateCallRouting(newDevice); 334 } 335 for (size_t i = 0; i < mOutputs.size(); i++) { 336 audio_io_handle_t output = mOutputs.keyAt(i); 337 if ((mPhoneState != AUDIO_MODE_IN_CALL) || (output != mPrimaryOutput)) { 338 audio_devices_t newDevice = getNewOutputDevice(mOutputs.keyAt(i), 339 true /*fromCache*/); 340 // do not force device change on duplicated output because if device is 0, it will 341 // also force a device 0 for the two outputs it is duplicated to which may override 342 // a valid device selection on those outputs. 343 bool force = !mOutputs.valueAt(i)->isDuplicated() 344 && (!deviceDistinguishesOnAddress(device) 345 // always force when disconnecting (a non-duplicated device) 346 || (state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE)); 347 setOutputDevice(output, newDevice, force, 0); 348 } 349 } 350 351 mpClientInterface->onAudioPortListUpdate(); 352 return NO_ERROR; 353 } // end if is output device 354 355 // handle input devices 356 if (audio_is_input_device(device)) { 357 SortedVector <audio_io_handle_t> inputs; 358 359 ssize_t index = mAvailableInputDevices.indexOf(devDesc); 360 switch (state) 361 { 362 // handle input device connection 363 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: { 364 if (index >= 0) { 365 ALOGW("setDeviceConnectionState() device already connected: %d", device); 366 return INVALID_OPERATION; 367 } 368 sp<HwModule> module = getModuleForDevice(device); 369 if (module == NULL) { 370 ALOGW("setDeviceConnectionState(): could not find HW module for device %08x", 371 device); 372 return INVALID_OPERATION; 373 } 374 if (checkInputsForDevice(device, state, inputs, devDesc->mAddress) != NO_ERROR) { 375 return INVALID_OPERATION; 376 } 377 378 index = mAvailableInputDevices.add(devDesc); 379 if (index >= 0) { 380 mAvailableInputDevices[index]->mId = nextUniqueId(); 381 mAvailableInputDevices[index]->mModule = module; 382 } else { 383 return NO_MEMORY; 384 } 385 386 // Set connect to HALs 387 AudioParameter param = AudioParameter(devDesc->mAddress); 388 param.addInt(String8(AUDIO_PARAMETER_DEVICE_CONNECT), device); 389 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 390 391 } break; 392 393 // handle input device disconnection 394 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 395 if (index < 0) { 396 ALOGW("setDeviceConnectionState() device not connected: %d", device); 397 return INVALID_OPERATION; 398 } 399 400 ALOGV("setDeviceConnectionState() disconnecting input device %x", device); 401 402 // Set Disconnect to HALs 403 AudioParameter param = AudioParameter(devDesc->mAddress); 404 param.addInt(String8(AUDIO_PARAMETER_DEVICE_DISCONNECT), device); 405 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 406 407 checkInputsForDevice(device, state, inputs, devDesc->mAddress); 408 mAvailableInputDevices.remove(devDesc); 409 410 } break; 411 412 default: 413 ALOGE("setDeviceConnectionState() invalid state: %x", state); 414 return BAD_VALUE; 415 } 416 417 closeAllInputs(); 418 419 if (mPhoneState == AUDIO_MODE_IN_CALL) { 420 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 421 updateCallRouting(newDevice); 422 } 423 424 mpClientInterface->onAudioPortListUpdate(); 425 return NO_ERROR; 426 } // end if is input device 427 428 ALOGW("setDeviceConnectionState() invalid device: %x", device); 429 return BAD_VALUE; 430 } 431 432 audio_policy_dev_state_t AudioPolicyManager::getDeviceConnectionState(audio_devices_t device, 433 const char *device_address) 434 { 435 sp<DeviceDescriptor> devDesc = getDeviceDescriptor(device, device_address); 436 DeviceVector *deviceVector; 437 438 if (audio_is_output_device(device)) { 439 deviceVector = &mAvailableOutputDevices; 440 } else if (audio_is_input_device(device)) { 441 deviceVector = &mAvailableInputDevices; 442 } else { 443 ALOGW("getDeviceConnectionState() invalid device type %08x", device); 444 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 445 } 446 447 ssize_t index = deviceVector->indexOf(devDesc); 448 if (index >= 0) { 449 return AUDIO_POLICY_DEVICE_STATE_AVAILABLE; 450 } else { 451 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 452 } 453 } 454 455 sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::getDeviceDescriptor( 456 const audio_devices_t device, 457 const char *device_address) 458 { 459 String8 address = (device_address == NULL) ? String8("") : String8(device_address); 460 // handle legacy remote submix case where the address was not always specified 461 if (deviceDistinguishesOnAddress(device) && (address.length() == 0)) { 462 address = String8("0"); 463 } 464 465 for (size_t i = 0; i < mHwModules.size(); i++) { 466 if (mHwModules[i]->mHandle == 0) { 467 continue; 468 } 469 DeviceVector deviceList = 470 mHwModules[i]->mDeclaredDevices.getDevicesFromTypeAddr(device, address); 471 if (!deviceList.isEmpty()) { 472 return deviceList.itemAt(0); 473 } 474 deviceList = mHwModules[i]->mDeclaredDevices.getDevicesFromType(device); 475 if (!deviceList.isEmpty()) { 476 return deviceList.itemAt(0); 477 } 478 } 479 480 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 481 devDesc->mAddress = address; 482 return devDesc; 483 } 484 485 void AudioPolicyManager::updateCallRouting(audio_devices_t rxDevice, int delayMs) 486 { 487 bool createTxPatch = false; 488 struct audio_patch patch; 489 patch.num_sources = 1; 490 patch.num_sinks = 1; 491 status_t status; 492 audio_patch_handle_t afPatchHandle; 493 DeviceVector deviceList; 494 495 audio_devices_t txDevice = getDeviceAndMixForInputSource(AUDIO_SOURCE_VOICE_COMMUNICATION); 496 ALOGV("updateCallRouting device rxDevice %08x txDevice %08x", rxDevice, txDevice); 497 498 // release existing RX patch if any 499 if (mCallRxPatch != 0) { 500 mpClientInterface->releaseAudioPatch(mCallRxPatch->mAfPatchHandle, 0); 501 mCallRxPatch.clear(); 502 } 503 // release TX patch if any 504 if (mCallTxPatch != 0) { 505 mpClientInterface->releaseAudioPatch(mCallTxPatch->mAfPatchHandle, 0); 506 mCallTxPatch.clear(); 507 } 508 509 // If the RX device is on the primary HW module, then use legacy routing method for voice calls 510 // via setOutputDevice() on primary output. 511 // Otherwise, create two audio patches for TX and RX path. 512 if (availablePrimaryOutputDevices() & rxDevice) { 513 setOutputDevice(mPrimaryOutput, rxDevice, true, delayMs); 514 // If the TX device is also on the primary HW module, setOutputDevice() will take care 515 // of it due to legacy implementation. If not, create a patch. 516 if ((availablePrimaryInputDevices() & txDevice & ~AUDIO_DEVICE_BIT_IN) 517 == AUDIO_DEVICE_NONE) { 518 createTxPatch = true; 519 } 520 } else { 521 // create RX path audio patch 522 deviceList = mAvailableOutputDevices.getDevicesFromType(rxDevice); 523 ALOG_ASSERT(!deviceList.isEmpty(), 524 "updateCallRouting() selected device not in output device list"); 525 sp<DeviceDescriptor> rxSinkDeviceDesc = deviceList.itemAt(0); 526 deviceList = mAvailableInputDevices.getDevicesFromType(AUDIO_DEVICE_IN_TELEPHONY_RX); 527 ALOG_ASSERT(!deviceList.isEmpty(), 528 "updateCallRouting() no telephony RX device"); 529 sp<DeviceDescriptor> rxSourceDeviceDesc = deviceList.itemAt(0); 530 531 rxSourceDeviceDesc->toAudioPortConfig(&patch.sources[0]); 532 rxSinkDeviceDesc->toAudioPortConfig(&patch.sinks[0]); 533 534 // request to reuse existing output stream if one is already opened to reach the RX device 535 SortedVector<audio_io_handle_t> outputs = 536 getOutputsForDevice(rxDevice, mOutputs); 537 audio_io_handle_t output = selectOutput(outputs, 538 AUDIO_OUTPUT_FLAG_NONE, 539 AUDIO_FORMAT_INVALID); 540 if (output != AUDIO_IO_HANDLE_NONE) { 541 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 542 ALOG_ASSERT(!outputDesc->isDuplicated(), 543 "updateCallRouting() RX device output is duplicated"); 544 outputDesc->toAudioPortConfig(&patch.sources[1]); 545 patch.num_sources = 2; 546 } 547 548 afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 549 status = mpClientInterface->createAudioPatch(&patch, &afPatchHandle, 0); 550 ALOGW_IF(status != NO_ERROR, "updateCallRouting() error %d creating RX audio patch", 551 status); 552 if (status == NO_ERROR) { 553 mCallRxPatch = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 554 &patch, mUidCached); 555 mCallRxPatch->mAfPatchHandle = afPatchHandle; 556 mCallRxPatch->mUid = mUidCached; 557 } 558 createTxPatch = true; 559 } 560 if (createTxPatch) { 561 562 struct audio_patch patch; 563 patch.num_sources = 1; 564 patch.num_sinks = 1; 565 deviceList = mAvailableInputDevices.getDevicesFromType(txDevice); 566 ALOG_ASSERT(!deviceList.isEmpty(), 567 "updateCallRouting() selected device not in input device list"); 568 sp<DeviceDescriptor> txSourceDeviceDesc = deviceList.itemAt(0); 569 txSourceDeviceDesc->toAudioPortConfig(&patch.sources[0]); 570 deviceList = mAvailableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_TELEPHONY_TX); 571 ALOG_ASSERT(!deviceList.isEmpty(), 572 "updateCallRouting() no telephony TX device"); 573 sp<DeviceDescriptor> txSinkDeviceDesc = deviceList.itemAt(0); 574 txSinkDeviceDesc->toAudioPortConfig(&patch.sinks[0]); 575 576 SortedVector<audio_io_handle_t> outputs = 577 getOutputsForDevice(AUDIO_DEVICE_OUT_TELEPHONY_TX, mOutputs); 578 audio_io_handle_t output = selectOutput(outputs, 579 AUDIO_OUTPUT_FLAG_NONE, 580 AUDIO_FORMAT_INVALID); 581 // request to reuse existing output stream if one is already opened to reach the TX 582 // path output device 583 if (output != AUDIO_IO_HANDLE_NONE) { 584 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 585 ALOG_ASSERT(!outputDesc->isDuplicated(), 586 "updateCallRouting() RX device output is duplicated"); 587 outputDesc->toAudioPortConfig(&patch.sources[1]); 588 patch.num_sources = 2; 589 } 590 591 afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 592 status = mpClientInterface->createAudioPatch(&patch, &afPatchHandle, 0); 593 ALOGW_IF(status != NO_ERROR, "setPhoneState() error %d creating TX audio patch", 594 status); 595 if (status == NO_ERROR) { 596 mCallTxPatch = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 597 &patch, mUidCached); 598 mCallTxPatch->mAfPatchHandle = afPatchHandle; 599 mCallTxPatch->mUid = mUidCached; 600 } 601 } 602 } 603 604 void AudioPolicyManager::setPhoneState(audio_mode_t state) 605 { 606 ALOGV("setPhoneState() state %d", state); 607 if (state < 0 || state >= AUDIO_MODE_CNT) { 608 ALOGW("setPhoneState() invalid state %d", state); 609 return; 610 } 611 612 if (state == mPhoneState ) { 613 ALOGW("setPhoneState() setting same state %d", state); 614 return; 615 } 616 617 // if leaving call state, handle special case of active streams 618 // pertaining to sonification strategy see handleIncallSonification() 619 if (isInCall()) { 620 ALOGV("setPhoneState() in call state management: new state is %d", state); 621 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 622 if (stream == AUDIO_STREAM_PATCH) { 623 continue; 624 } 625 handleIncallSonification((audio_stream_type_t)stream, false, true); 626 } 627 628 // force reevaluating accessibility routing when call starts 629 mpClientInterface->invalidateStream(AUDIO_STREAM_ACCESSIBILITY); 630 } 631 632 // store previous phone state for management of sonification strategy below 633 int oldState = mPhoneState; 634 mPhoneState = state; 635 bool force = false; 636 637 // are we entering or starting a call 638 if (!isStateInCall(oldState) && isStateInCall(state)) { 639 ALOGV(" Entering call in setPhoneState()"); 640 // force routing command to audio hardware when starting a call 641 // even if no device change is needed 642 force = true; 643 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 644 mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] = 645 sVolumeProfiles[AUDIO_STREAM_VOICE_CALL][j]; 646 } 647 } else if (isStateInCall(oldState) && !isStateInCall(state)) { 648 ALOGV(" Exiting call in setPhoneState()"); 649 // force routing command to audio hardware when exiting a call 650 // even if no device change is needed 651 force = true; 652 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 653 mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] = 654 sVolumeProfiles[AUDIO_STREAM_DTMF][j]; 655 } 656 } else if (isStateInCall(state) && (state != oldState)) { 657 ALOGV(" Switching between telephony and VoIP in setPhoneState()"); 658 // force routing command to audio hardware when switching between telephony and VoIP 659 // even if no device change is needed 660 force = true; 661 } 662 663 // check for device and output changes triggered by new phone state 664 checkA2dpSuspend(); 665 checkOutputForAllStrategies(); 666 updateDevicesAndOutputs(); 667 668 sp<AudioOutputDescriptor> hwOutputDesc = mOutputs.valueFor(mPrimaryOutput); 669 670 int delayMs = 0; 671 if (isStateInCall(state)) { 672 nsecs_t sysTime = systemTime(); 673 for (size_t i = 0; i < mOutputs.size(); i++) { 674 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 675 // mute media and sonification strategies and delay device switch by the largest 676 // latency of any output where either strategy is active. 677 // This avoid sending the ring tone or music tail into the earpiece or headset. 678 if ((desc->isStrategyActive(STRATEGY_MEDIA, 679 SONIFICATION_HEADSET_MUSIC_DELAY, 680 sysTime) || 681 desc->isStrategyActive(STRATEGY_SONIFICATION, 682 SONIFICATION_HEADSET_MUSIC_DELAY, 683 sysTime)) && 684 (delayMs < (int)desc->mLatency*2)) { 685 delayMs = desc->mLatency*2; 686 } 687 setStrategyMute(STRATEGY_MEDIA, true, mOutputs.keyAt(i)); 688 setStrategyMute(STRATEGY_MEDIA, false, mOutputs.keyAt(i), MUTE_TIME_MS, 689 getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/)); 690 setStrategyMute(STRATEGY_SONIFICATION, true, mOutputs.keyAt(i)); 691 setStrategyMute(STRATEGY_SONIFICATION, false, mOutputs.keyAt(i), MUTE_TIME_MS, 692 getDeviceForStrategy(STRATEGY_SONIFICATION, true /*fromCache*/)); 693 } 694 } 695 696 // Note that despite the fact that getNewOutputDevice() is called on the primary output, 697 // the device returned is not necessarily reachable via this output 698 audio_devices_t rxDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 699 // force routing command to audio hardware when ending call 700 // even if no device change is needed 701 if (isStateInCall(oldState) && rxDevice == AUDIO_DEVICE_NONE) { 702 rxDevice = hwOutputDesc->device(); 703 } 704 705 if (state == AUDIO_MODE_IN_CALL) { 706 updateCallRouting(rxDevice, delayMs); 707 } else if (oldState == AUDIO_MODE_IN_CALL) { 708 if (mCallRxPatch != 0) { 709 mpClientInterface->releaseAudioPatch(mCallRxPatch->mAfPatchHandle, 0); 710 mCallRxPatch.clear(); 711 } 712 if (mCallTxPatch != 0) { 713 mpClientInterface->releaseAudioPatch(mCallTxPatch->mAfPatchHandle, 0); 714 mCallTxPatch.clear(); 715 } 716 setOutputDevice(mPrimaryOutput, rxDevice, force, 0); 717 } else { 718 setOutputDevice(mPrimaryOutput, rxDevice, force, 0); 719 } 720 // if entering in call state, handle special case of active streams 721 // pertaining to sonification strategy see handleIncallSonification() 722 if (isStateInCall(state)) { 723 ALOGV("setPhoneState() in call state management: new state is %d", state); 724 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 725 if (stream == AUDIO_STREAM_PATCH) { 726 continue; 727 } 728 handleIncallSonification((audio_stream_type_t)stream, true, true); 729 } 730 } 731 732 // Flag that ringtone volume must be limited to music volume until we exit MODE_RINGTONE 733 if (state == AUDIO_MODE_RINGTONE && 734 isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY)) { 735 mLimitRingtoneVolume = true; 736 } else { 737 mLimitRingtoneVolume = false; 738 } 739 } 740 741 void AudioPolicyManager::setForceUse(audio_policy_force_use_t usage, 742 audio_policy_forced_cfg_t config) 743 { 744 ALOGV("setForceUse() usage %d, config %d, mPhoneState %d", usage, config, mPhoneState); 745 746 bool forceVolumeReeval = false; 747 switch(usage) { 748 case AUDIO_POLICY_FORCE_FOR_COMMUNICATION: 749 if (config != AUDIO_POLICY_FORCE_SPEAKER && config != AUDIO_POLICY_FORCE_BT_SCO && 750 config != AUDIO_POLICY_FORCE_NONE) { 751 ALOGW("setForceUse() invalid config %d for FOR_COMMUNICATION", config); 752 return; 753 } 754 forceVolumeReeval = true; 755 mForceUse[usage] = config; 756 break; 757 case AUDIO_POLICY_FORCE_FOR_MEDIA: 758 if (config != AUDIO_POLICY_FORCE_HEADPHONES && config != AUDIO_POLICY_FORCE_BT_A2DP && 759 config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 760 config != AUDIO_POLICY_FORCE_ANALOG_DOCK && 761 config != AUDIO_POLICY_FORCE_DIGITAL_DOCK && config != AUDIO_POLICY_FORCE_NONE && 762 config != AUDIO_POLICY_FORCE_NO_BT_A2DP && config != AUDIO_POLICY_FORCE_SPEAKER ) { 763 ALOGW("setForceUse() invalid config %d for FOR_MEDIA", config); 764 return; 765 } 766 mForceUse[usage] = config; 767 break; 768 case AUDIO_POLICY_FORCE_FOR_RECORD: 769 if (config != AUDIO_POLICY_FORCE_BT_SCO && config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 770 config != AUDIO_POLICY_FORCE_NONE) { 771 ALOGW("setForceUse() invalid config %d for FOR_RECORD", config); 772 return; 773 } 774 mForceUse[usage] = config; 775 break; 776 case AUDIO_POLICY_FORCE_FOR_DOCK: 777 if (config != AUDIO_POLICY_FORCE_NONE && config != AUDIO_POLICY_FORCE_BT_CAR_DOCK && 778 config != AUDIO_POLICY_FORCE_BT_DESK_DOCK && 779 config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 780 config != AUDIO_POLICY_FORCE_ANALOG_DOCK && 781 config != AUDIO_POLICY_FORCE_DIGITAL_DOCK) { 782 ALOGW("setForceUse() invalid config %d for FOR_DOCK", config); 783 } 784 forceVolumeReeval = true; 785 mForceUse[usage] = config; 786 break; 787 case AUDIO_POLICY_FORCE_FOR_SYSTEM: 788 if (config != AUDIO_POLICY_FORCE_NONE && 789 config != AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) { 790 ALOGW("setForceUse() invalid config %d for FOR_SYSTEM", config); 791 } 792 forceVolumeReeval = true; 793 mForceUse[usage] = config; 794 break; 795 case AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO: 796 if (config != AUDIO_POLICY_FORCE_NONE && 797 config != AUDIO_POLICY_FORCE_HDMI_SYSTEM_AUDIO_ENFORCED) { 798 ALOGW("setForceUse() invalid config %d forHDMI_SYSTEM_AUDIO", config); 799 } 800 mForceUse[usage] = config; 801 break; 802 default: 803 ALOGW("setForceUse() invalid usage %d", usage); 804 break; 805 } 806 807 // check for device and output changes triggered by new force usage 808 checkA2dpSuspend(); 809 checkOutputForAllStrategies(); 810 updateDevicesAndOutputs(); 811 if (mPhoneState == AUDIO_MODE_IN_CALL) { 812 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, true /*fromCache*/); 813 updateCallRouting(newDevice); 814 } 815 for (size_t i = 0; i < mOutputs.size(); i++) { 816 audio_io_handle_t output = mOutputs.keyAt(i); 817 audio_devices_t newDevice = getNewOutputDevice(output, true /*fromCache*/); 818 if ((mPhoneState != AUDIO_MODE_IN_CALL) || (output != mPrimaryOutput)) { 819 setOutputDevice(output, newDevice, (newDevice != AUDIO_DEVICE_NONE)); 820 } 821 if (forceVolumeReeval && (newDevice != AUDIO_DEVICE_NONE)) { 822 applyStreamVolumes(output, newDevice, 0, true); 823 } 824 } 825 826 audio_io_handle_t activeInput = getActiveInput(); 827 if (activeInput != 0) { 828 setInputDevice(activeInput, getNewInputDevice(activeInput)); 829 } 830 831 } 832 833 audio_policy_forced_cfg_t AudioPolicyManager::getForceUse(audio_policy_force_use_t usage) 834 { 835 return mForceUse[usage]; 836 } 837 838 void AudioPolicyManager::setSystemProperty(const char* property, const char* value) 839 { 840 ALOGV("setSystemProperty() property %s, value %s", property, value); 841 } 842 843 // Find a direct output profile compatible with the parameters passed, even if the input flags do 844 // not explicitly request a direct output 845 sp<AudioPolicyManager::IOProfile> AudioPolicyManager::getProfileForDirectOutput( 846 audio_devices_t device, 847 uint32_t samplingRate, 848 audio_format_t format, 849 audio_channel_mask_t channelMask, 850 audio_output_flags_t flags) 851 { 852 for (size_t i = 0; i < mHwModules.size(); i++) { 853 if (mHwModules[i]->mHandle == 0) { 854 continue; 855 } 856 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) { 857 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 858 bool found = profile->isCompatibleProfile(device, String8(""), samplingRate, 859 NULL /*updatedSamplingRate*/, format, channelMask, 860 flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD ? 861 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD : AUDIO_OUTPUT_FLAG_DIRECT); 862 if (found && (mAvailableOutputDevices.types() & profile->mSupportedDevices.types())) { 863 return profile; 864 } 865 } 866 } 867 return 0; 868 } 869 870 audio_io_handle_t AudioPolicyManager::getOutput(audio_stream_type_t stream, 871 uint32_t samplingRate, 872 audio_format_t format, 873 audio_channel_mask_t channelMask, 874 audio_output_flags_t flags, 875 const audio_offload_info_t *offloadInfo) 876 { 877 routing_strategy strategy = getStrategy(stream); 878 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 879 ALOGV("getOutput() device %d, stream %d, samplingRate %d, format %x, channelMask %x, flags %x", 880 device, stream, samplingRate, format, channelMask, flags); 881 882 return getOutputForDevice(device, AUDIO_SESSION_ALLOCATE, 883 stream, samplingRate,format, channelMask, 884 flags, offloadInfo); 885 } 886 887 status_t AudioPolicyManager::getOutputForAttr(const audio_attributes_t *attr, 888 audio_io_handle_t *output, 889 audio_session_t session, 890 audio_stream_type_t *stream, 891 uint32_t samplingRate, 892 audio_format_t format, 893 audio_channel_mask_t channelMask, 894 audio_output_flags_t flags, 895 const audio_offload_info_t *offloadInfo) 896 { 897 audio_attributes_t attributes; 898 if (attr != NULL) { 899 if (!isValidAttributes(attr)) { 900 ALOGE("getOutputForAttr() invalid attributes: usage=%d content=%d flags=0x%x tags=[%s]", 901 attr->usage, attr->content_type, attr->flags, 902 attr->tags); 903 return BAD_VALUE; 904 } 905 attributes = *attr; 906 } else { 907 if (*stream < AUDIO_STREAM_MIN || *stream >= AUDIO_STREAM_PUBLIC_CNT) { 908 ALOGE("getOutputForAttr(): invalid stream type"); 909 return BAD_VALUE; 910 } 911 stream_type_to_audio_attributes(*stream, &attributes); 912 } 913 914 for (size_t i = 0; i < mPolicyMixes.size(); i++) { 915 sp<AudioOutputDescriptor> desc; 916 if (mPolicyMixes[i]->mMix.mMixType == MIX_TYPE_PLAYERS) { 917 for (size_t j = 0; j < mPolicyMixes[i]->mMix.mCriteria.size(); j++) { 918 if ((RULE_MATCH_ATTRIBUTE_USAGE == mPolicyMixes[i]->mMix.mCriteria[j].mRule && 919 mPolicyMixes[i]->mMix.mCriteria[j].mAttr.mUsage == attributes.usage) || 920 (RULE_EXCLUDE_ATTRIBUTE_USAGE == mPolicyMixes[i]->mMix.mCriteria[j].mRule && 921 mPolicyMixes[i]->mMix.mCriteria[j].mAttr.mUsage != attributes.usage)) { 922 desc = mPolicyMixes[i]->mOutput; 923 break; 924 } 925 if (strncmp(attributes.tags, "addr=", strlen("addr=")) == 0 && 926 strncmp(attributes.tags + strlen("addr="), 927 mPolicyMixes[i]->mMix.mRegistrationId.string(), 928 AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - strlen("addr=") - 1) == 0) { 929 desc = mPolicyMixes[i]->mOutput; 930 break; 931 } 932 } 933 } else if (mPolicyMixes[i]->mMix.mMixType == MIX_TYPE_RECORDERS) { 934 if (attributes.usage == AUDIO_USAGE_VIRTUAL_SOURCE && 935 strncmp(attributes.tags, "addr=", strlen("addr=")) == 0 && 936 strncmp(attributes.tags + strlen("addr="), 937 mPolicyMixes[i]->mMix.mRegistrationId.string(), 938 AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - strlen("addr=") - 1) == 0) { 939 desc = mPolicyMixes[i]->mOutput; 940 } 941 } 942 if (desc != 0) { 943 if (!audio_is_linear_pcm(format)) { 944 return BAD_VALUE; 945 } 946 desc->mPolicyMix = &mPolicyMixes[i]->mMix; 947 *stream = streamTypefromAttributesInt(&attributes); 948 *output = desc->mIoHandle; 949 ALOGV("getOutputForAttr() returns output %d", *output); 950 return NO_ERROR; 951 } 952 } 953 if (attributes.usage == AUDIO_USAGE_VIRTUAL_SOURCE) { 954 ALOGW("getOutputForAttr() no policy mix found for usage AUDIO_USAGE_VIRTUAL_SOURCE"); 955 return BAD_VALUE; 956 } 957 958 ALOGV("getOutputForAttr() usage=%d, content=%d, tag=%s flags=%08x", 959 attributes.usage, attributes.content_type, attributes.tags, attributes.flags); 960 961 routing_strategy strategy = (routing_strategy) getStrategyForAttr(&attributes); 962 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 963 964 if ((attributes.flags & AUDIO_FLAG_HW_AV_SYNC) != 0) { 965 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_HW_AV_SYNC); 966 } 967 968 ALOGV("getOutputForAttr() device 0x%x, samplingRate %d, format %x, channelMask %x, flags %x", 969 device, samplingRate, format, channelMask, flags); 970 971 *stream = streamTypefromAttributesInt(&attributes); 972 *output = getOutputForDevice(device, session, *stream, 973 samplingRate, format, channelMask, 974 flags, offloadInfo); 975 if (*output == AUDIO_IO_HANDLE_NONE) { 976 return INVALID_OPERATION; 977 } 978 return NO_ERROR; 979 } 980 981 audio_io_handle_t AudioPolicyManager::getOutputForDevice( 982 audio_devices_t device, 983 audio_session_t session __unused, 984 audio_stream_type_t stream, 985 uint32_t samplingRate, 986 audio_format_t format, 987 audio_channel_mask_t channelMask, 988 audio_output_flags_t flags, 989 const audio_offload_info_t *offloadInfo) 990 { 991 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 992 uint32_t latency = 0; 993 status_t status; 994 995 #ifdef AUDIO_POLICY_TEST 996 if (mCurOutput != 0) { 997 ALOGV("getOutput() test output mCurOutput %d, samplingRate %d, format %d, channelMask %x, mDirectOutput %d", 998 mCurOutput, mTestSamplingRate, mTestFormat, mTestChannels, mDirectOutput); 999 1000 if (mTestOutputs[mCurOutput] == 0) { 1001 ALOGV("getOutput() opening test output"); 1002 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(NULL); 1003 outputDesc->mDevice = mTestDevice; 1004 outputDesc->mLatency = mTestLatencyMs; 1005 outputDesc->mFlags = 1006 (audio_output_flags_t)(mDirectOutput ? AUDIO_OUTPUT_FLAG_DIRECT : 0); 1007 outputDesc->mRefCount[stream] = 0; 1008 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 1009 config.sample_rate = mTestSamplingRate; 1010 config.channel_mask = mTestChannels; 1011 config.format = mTestFormat; 1012 if (offloadInfo != NULL) { 1013 config.offload_info = *offloadInfo; 1014 } 1015 status = mpClientInterface->openOutput(0, 1016 &mTestOutputs[mCurOutput], 1017 &config, 1018 &outputDesc->mDevice, 1019 String8(""), 1020 &outputDesc->mLatency, 1021 outputDesc->mFlags); 1022 if (status == NO_ERROR) { 1023 outputDesc->mSamplingRate = config.sample_rate; 1024 outputDesc->mFormat = config.format; 1025 outputDesc->mChannelMask = config.channel_mask; 1026 AudioParameter outputCmd = AudioParameter(); 1027 outputCmd.addInt(String8("set_id"),mCurOutput); 1028 mpClientInterface->setParameters(mTestOutputs[mCurOutput],outputCmd.toString()); 1029 addOutput(mTestOutputs[mCurOutput], outputDesc); 1030 } 1031 } 1032 return mTestOutputs[mCurOutput]; 1033 } 1034 #endif //AUDIO_POLICY_TEST 1035 1036 // open a direct output if required by specified parameters 1037 //force direct flag if offload flag is set: offloading implies a direct output stream 1038 // and all common behaviors are driven by checking only the direct flag 1039 // this should normally be set appropriately in the policy configuration file 1040 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1041 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 1042 } 1043 if ((flags & AUDIO_OUTPUT_FLAG_HW_AV_SYNC) != 0) { 1044 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 1045 } 1046 // only allow deep buffering for music stream type 1047 if (stream != AUDIO_STREAM_MUSIC) { 1048 flags = (audio_output_flags_t)(flags &~AUDIO_OUTPUT_FLAG_DEEP_BUFFER); 1049 } 1050 1051 sp<IOProfile> profile; 1052 1053 // skip direct output selection if the request can obviously be attached to a mixed output 1054 // and not explicitly requested 1055 if (((flags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) && 1056 audio_is_linear_pcm(format) && samplingRate <= MAX_MIXER_SAMPLING_RATE && 1057 audio_channel_count_from_out_mask(channelMask) <= 2) { 1058 goto non_direct_output; 1059 } 1060 1061 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 1062 // creating an offloaded track and tearing it down immediately after start when audioflinger 1063 // detects there is an active non offloadable effect. 1064 // FIXME: We should check the audio session here but we do not have it in this context. 1065 // This may prevent offloading in rare situations where effects are left active by apps 1066 // in the background. 1067 1068 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) || 1069 !isNonOffloadableEffectEnabled()) { 1070 profile = getProfileForDirectOutput(device, 1071 samplingRate, 1072 format, 1073 channelMask, 1074 (audio_output_flags_t)flags); 1075 } 1076 1077 if (profile != 0) { 1078 sp<AudioOutputDescriptor> outputDesc = NULL; 1079 1080 for (size_t i = 0; i < mOutputs.size(); i++) { 1081 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1082 if (!desc->isDuplicated() && (profile == desc->mProfile)) { 1083 outputDesc = desc; 1084 // reuse direct output if currently open and configured with same parameters 1085 if ((samplingRate == outputDesc->mSamplingRate) && 1086 (format == outputDesc->mFormat) && 1087 (channelMask == outputDesc->mChannelMask)) { 1088 outputDesc->mDirectOpenCount++; 1089 ALOGV("getOutput() reusing direct output %d", mOutputs.keyAt(i)); 1090 return mOutputs.keyAt(i); 1091 } 1092 } 1093 } 1094 // close direct output if currently open and configured with different parameters 1095 if (outputDesc != NULL) { 1096 closeOutput(outputDesc->mIoHandle); 1097 } 1098 outputDesc = new AudioOutputDescriptor(profile); 1099 outputDesc->mDevice = device; 1100 outputDesc->mLatency = 0; 1101 outputDesc->mFlags =(audio_output_flags_t) (outputDesc->mFlags | flags); 1102 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 1103 config.sample_rate = samplingRate; 1104 config.channel_mask = channelMask; 1105 config.format = format; 1106 if (offloadInfo != NULL) { 1107 config.offload_info = *offloadInfo; 1108 } 1109 status = mpClientInterface->openOutput(profile->mModule->mHandle, 1110 &output, 1111 &config, 1112 &outputDesc->mDevice, 1113 String8(""), 1114 &outputDesc->mLatency, 1115 outputDesc->mFlags); 1116 1117 // only accept an output with the requested parameters 1118 if (status != NO_ERROR || 1119 (samplingRate != 0 && samplingRate != config.sample_rate) || 1120 (format != AUDIO_FORMAT_DEFAULT && format != config.format) || 1121 (channelMask != 0 && channelMask != config.channel_mask)) { 1122 ALOGV("getOutput() failed opening direct output: output %d samplingRate %d %d," 1123 "format %d %d, channelMask %04x %04x", output, samplingRate, 1124 outputDesc->mSamplingRate, format, outputDesc->mFormat, channelMask, 1125 outputDesc->mChannelMask); 1126 if (output != AUDIO_IO_HANDLE_NONE) { 1127 mpClientInterface->closeOutput(output); 1128 } 1129 // fall back to mixer output if possible when the direct output could not be open 1130 if (audio_is_linear_pcm(format) && samplingRate <= MAX_MIXER_SAMPLING_RATE) { 1131 goto non_direct_output; 1132 } 1133 return AUDIO_IO_HANDLE_NONE; 1134 } 1135 outputDesc->mSamplingRate = config.sample_rate; 1136 outputDesc->mChannelMask = config.channel_mask; 1137 outputDesc->mFormat = config.format; 1138 outputDesc->mRefCount[stream] = 0; 1139 outputDesc->mStopTime[stream] = 0; 1140 outputDesc->mDirectOpenCount = 1; 1141 1142 audio_io_handle_t srcOutput = getOutputForEffect(); 1143 addOutput(output, outputDesc); 1144 audio_io_handle_t dstOutput = getOutputForEffect(); 1145 if (dstOutput == output) { 1146 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, srcOutput, dstOutput); 1147 } 1148 mPreviousOutputs = mOutputs; 1149 ALOGV("getOutput() returns new direct output %d", output); 1150 mpClientInterface->onAudioPortListUpdate(); 1151 return output; 1152 } 1153 1154 non_direct_output: 1155 1156 // ignoring channel mask due to downmix capability in mixer 1157 1158 // open a non direct output 1159 1160 // for non direct outputs, only PCM is supported 1161 if (audio_is_linear_pcm(format)) { 1162 // get which output is suitable for the specified stream. The actual 1163 // routing change will happen when startOutput() will be called 1164 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(device, mOutputs); 1165 1166 // at this stage we should ignore the DIRECT flag as no direct output could be found earlier 1167 flags = (audio_output_flags_t)(flags & ~AUDIO_OUTPUT_FLAG_DIRECT); 1168 output = selectOutput(outputs, flags, format); 1169 } 1170 ALOGW_IF((output == 0), "getOutput() could not find output for stream %d, samplingRate %d," 1171 "format %d, channels %x, flags %x", stream, samplingRate, format, channelMask, flags); 1172 1173 ALOGV("getOutput() returns output %d", output); 1174 1175 return output; 1176 } 1177 1178 audio_io_handle_t AudioPolicyManager::selectOutput(const SortedVector<audio_io_handle_t>& outputs, 1179 audio_output_flags_t flags, 1180 audio_format_t format) 1181 { 1182 // select one output among several that provide a path to a particular device or set of 1183 // devices (the list was previously build by getOutputsForDevice()). 1184 // The priority is as follows: 1185 // 1: the output with the highest number of requested policy flags 1186 // 2: the primary output 1187 // 3: the first output in the list 1188 1189 if (outputs.size() == 0) { 1190 return 0; 1191 } 1192 if (outputs.size() == 1) { 1193 return outputs[0]; 1194 } 1195 1196 int maxCommonFlags = 0; 1197 audio_io_handle_t outputFlags = 0; 1198 audio_io_handle_t outputPrimary = 0; 1199 1200 for (size_t i = 0; i < outputs.size(); i++) { 1201 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 1202 if (!outputDesc->isDuplicated()) { 1203 // if a valid format is specified, skip output if not compatible 1204 if (format != AUDIO_FORMAT_INVALID) { 1205 if (outputDesc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 1206 if (format != outputDesc->mFormat) { 1207 continue; 1208 } 1209 } else if (!audio_is_linear_pcm(format)) { 1210 continue; 1211 } 1212 } 1213 1214 int commonFlags = popcount(outputDesc->mProfile->mFlags & flags); 1215 if (commonFlags > maxCommonFlags) { 1216 outputFlags = outputs[i]; 1217 maxCommonFlags = commonFlags; 1218 ALOGV("selectOutput() commonFlags for output %d, %04x", outputs[i], commonFlags); 1219 } 1220 if (outputDesc->mProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 1221 outputPrimary = outputs[i]; 1222 } 1223 } 1224 } 1225 1226 if (outputFlags != 0) { 1227 return outputFlags; 1228 } 1229 if (outputPrimary != 0) { 1230 return outputPrimary; 1231 } 1232 1233 return outputs[0]; 1234 } 1235 1236 status_t AudioPolicyManager::startOutput(audio_io_handle_t output, 1237 audio_stream_type_t stream, 1238 audio_session_t session) 1239 { 1240 ALOGV("startOutput() output %d, stream %d, session %d", output, stream, session); 1241 ssize_t index = mOutputs.indexOfKey(output); 1242 if (index < 0) { 1243 ALOGW("startOutput() unknown output %d", output); 1244 return BAD_VALUE; 1245 } 1246 1247 // cannot start playback of STREAM_TTS if any other output is being used 1248 uint32_t beaconMuteLatency = 0; 1249 if (stream == AUDIO_STREAM_TTS) { 1250 ALOGV("\t found BEACON stream"); 1251 if (isAnyOutputActive(AUDIO_STREAM_TTS /*streamToIgnore*/)) { 1252 return INVALID_OPERATION; 1253 } else { 1254 beaconMuteLatency = handleEventForBeacon(STARTING_BEACON); 1255 } 1256 } else { 1257 // some playback other than beacon starts 1258 beaconMuteLatency = handleEventForBeacon(STARTING_OUTPUT); 1259 } 1260 1261 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1262 1263 // increment usage count for this stream on the requested output: 1264 // NOTE that the usage count is the same for duplicated output and hardware output which is 1265 // necessary for a correct control of hardware output routing by startOutput() and stopOutput() 1266 outputDesc->changeRefCount(stream, 1); 1267 1268 if (outputDesc->mRefCount[stream] == 1) { 1269 // starting an output being rerouted? 1270 audio_devices_t newDevice; 1271 if (outputDesc->mPolicyMix != NULL) { 1272 newDevice = AUDIO_DEVICE_OUT_REMOTE_SUBMIX; 1273 } else { 1274 newDevice = getNewOutputDevice(output, false /*fromCache*/); 1275 } 1276 routing_strategy strategy = getStrategy(stream); 1277 bool shouldWait = (strategy == STRATEGY_SONIFICATION) || 1278 (strategy == STRATEGY_SONIFICATION_RESPECTFUL) || 1279 (beaconMuteLatency > 0); 1280 uint32_t waitMs = beaconMuteLatency; 1281 bool force = false; 1282 for (size_t i = 0; i < mOutputs.size(); i++) { 1283 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1284 if (desc != outputDesc) { 1285 // force a device change if any other output is managed by the same hw 1286 // module and has a current device selection that differs from selected device. 1287 // In this case, the audio HAL must receive the new device selection so that it can 1288 // change the device currently selected by the other active output. 1289 if (outputDesc->sharesHwModuleWith(desc) && 1290 desc->device() != newDevice) { 1291 force = true; 1292 } 1293 // wait for audio on other active outputs to be presented when starting 1294 // a notification so that audio focus effect can propagate, or that a mute/unmute 1295 // event occurred for beacon 1296 uint32_t latency = desc->latency(); 1297 if (shouldWait && desc->isActive(latency * 2) && (waitMs < latency)) { 1298 waitMs = latency; 1299 } 1300 } 1301 } 1302 uint32_t muteWaitMs = setOutputDevice(output, newDevice, force); 1303 1304 // handle special case for sonification while in call 1305 if (isInCall()) { 1306 handleIncallSonification(stream, true, false); 1307 } 1308 1309 // apply volume rules for current stream and device if necessary 1310 checkAndSetVolume(stream, 1311 mStreams[stream].getVolumeIndex(newDevice), 1312 output, 1313 newDevice); 1314 1315 // update the outputs if starting an output with a stream that can affect notification 1316 // routing 1317 handleNotificationRoutingForStream(stream); 1318 1319 // Automatically enable the remote submix input when output is started on a re routing mix 1320 // of type MIX_TYPE_RECORDERS 1321 if (audio_is_remote_submix_device(newDevice) && outputDesc->mPolicyMix != NULL && 1322 outputDesc->mPolicyMix->mMixType == MIX_TYPE_RECORDERS) { 1323 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 1324 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 1325 outputDesc->mPolicyMix->mRegistrationId); 1326 } 1327 1328 // force reevaluating accessibility routing when ringtone or alarm starts 1329 if (strategy == STRATEGY_SONIFICATION) { 1330 mpClientInterface->invalidateStream(AUDIO_STREAM_ACCESSIBILITY); 1331 } 1332 1333 if (waitMs > muteWaitMs) { 1334 usleep((waitMs - muteWaitMs) * 2 * 1000); 1335 } 1336 } 1337 return NO_ERROR; 1338 } 1339 1340 1341 status_t AudioPolicyManager::stopOutput(audio_io_handle_t output, 1342 audio_stream_type_t stream, 1343 audio_session_t session) 1344 { 1345 ALOGV("stopOutput() output %d, stream %d, session %d", output, stream, session); 1346 ssize_t index = mOutputs.indexOfKey(output); 1347 if (index < 0) { 1348 ALOGW("stopOutput() unknown output %d", output); 1349 return BAD_VALUE; 1350 } 1351 1352 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1353 1354 // always handle stream stop, check which stream type is stopping 1355 handleEventForBeacon(stream == AUDIO_STREAM_TTS ? STOPPING_BEACON : STOPPING_OUTPUT); 1356 1357 // handle special case for sonification while in call 1358 if (isInCall()) { 1359 handleIncallSonification(stream, false, false); 1360 } 1361 1362 if (outputDesc->mRefCount[stream] > 0) { 1363 // decrement usage count of this stream on the output 1364 outputDesc->changeRefCount(stream, -1); 1365 // store time at which the stream was stopped - see isStreamActive() 1366 if (outputDesc->mRefCount[stream] == 0) { 1367 // Automatically disable the remote submix input when output is stopped on a 1368 // re routing mix of type MIX_TYPE_RECORDERS 1369 if (audio_is_remote_submix_device(outputDesc->mDevice) && 1370 outputDesc->mPolicyMix != NULL && 1371 outputDesc->mPolicyMix->mMixType == MIX_TYPE_RECORDERS) { 1372 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 1373 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 1374 outputDesc->mPolicyMix->mRegistrationId); 1375 } 1376 1377 outputDesc->mStopTime[stream] = systemTime(); 1378 audio_devices_t newDevice = getNewOutputDevice(output, false /*fromCache*/); 1379 // delay the device switch by twice the latency because stopOutput() is executed when 1380 // the track stop() command is received and at that time the audio track buffer can 1381 // still contain data that needs to be drained. The latency only covers the audio HAL 1382 // and kernel buffers. Also the latency does not always include additional delay in the 1383 // audio path (audio DSP, CODEC ...) 1384 setOutputDevice(output, newDevice, false, outputDesc->mLatency*2); 1385 1386 // force restoring the device selection on other active outputs if it differs from the 1387 // one being selected for this output 1388 for (size_t i = 0; i < mOutputs.size(); i++) { 1389 audio_io_handle_t curOutput = mOutputs.keyAt(i); 1390 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1391 if (curOutput != output && 1392 desc->isActive() && 1393 outputDesc->sharesHwModuleWith(desc) && 1394 (newDevice != desc->device())) { 1395 setOutputDevice(curOutput, 1396 getNewOutputDevice(curOutput, false /*fromCache*/), 1397 true, 1398 outputDesc->mLatency*2); 1399 } 1400 } 1401 // update the outputs if stopping one with a stream that can affect notification routing 1402 handleNotificationRoutingForStream(stream); 1403 } 1404 return NO_ERROR; 1405 } else { 1406 ALOGW("stopOutput() refcount is already 0 for output %d", output); 1407 return INVALID_OPERATION; 1408 } 1409 } 1410 1411 void AudioPolicyManager::releaseOutput(audio_io_handle_t output, 1412 audio_stream_type_t stream __unused, 1413 audio_session_t session __unused) 1414 { 1415 ALOGV("releaseOutput() %d", output); 1416 ssize_t index = mOutputs.indexOfKey(output); 1417 if (index < 0) { 1418 ALOGW("releaseOutput() releasing unknown output %d", output); 1419 return; 1420 } 1421 1422 #ifdef AUDIO_POLICY_TEST 1423 int testIndex = testOutputIndex(output); 1424 if (testIndex != 0) { 1425 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1426 if (outputDesc->isActive()) { 1427 mpClientInterface->closeOutput(output); 1428 mOutputs.removeItem(output); 1429 mTestOutputs[testIndex] = 0; 1430 } 1431 return; 1432 } 1433 #endif //AUDIO_POLICY_TEST 1434 1435 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(index); 1436 if (desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 1437 if (desc->mDirectOpenCount <= 0) { 1438 ALOGW("releaseOutput() invalid open count %d for output %d", 1439 desc->mDirectOpenCount, output); 1440 return; 1441 } 1442 if (--desc->mDirectOpenCount == 0) { 1443 closeOutput(output); 1444 // If effects where present on the output, audioflinger moved them to the primary 1445 // output by default: move them back to the appropriate output. 1446 audio_io_handle_t dstOutput = getOutputForEffect(); 1447 if (dstOutput != mPrimaryOutput) { 1448 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, mPrimaryOutput, dstOutput); 1449 } 1450 mpClientInterface->onAudioPortListUpdate(); 1451 } 1452 } 1453 } 1454 1455 1456 status_t AudioPolicyManager::getInputForAttr(const audio_attributes_t *attr, 1457 audio_io_handle_t *input, 1458 audio_session_t session, 1459 uint32_t samplingRate, 1460 audio_format_t format, 1461 audio_channel_mask_t channelMask, 1462 audio_input_flags_t flags, 1463 input_type_t *inputType) 1464 { 1465 ALOGV("getInputForAttr() source %d, samplingRate %d, format %d, channelMask %x," 1466 "session %d, flags %#x", 1467 attr->source, samplingRate, format, channelMask, session, flags); 1468 1469 *input = AUDIO_IO_HANDLE_NONE; 1470 *inputType = API_INPUT_INVALID; 1471 audio_devices_t device; 1472 // handle legacy remote submix case where the address was not always specified 1473 String8 address = String8(""); 1474 bool isSoundTrigger = false; 1475 audio_source_t inputSource = attr->source; 1476 audio_source_t halInputSource; 1477 AudioMix *policyMix = NULL; 1478 1479 if (inputSource == AUDIO_SOURCE_DEFAULT) { 1480 inputSource = AUDIO_SOURCE_MIC; 1481 } 1482 halInputSource = inputSource; 1483 1484 if (inputSource == AUDIO_SOURCE_REMOTE_SUBMIX && 1485 strncmp(attr->tags, "addr=", strlen("addr=")) == 0) { 1486 device = AUDIO_DEVICE_IN_REMOTE_SUBMIX; 1487 address = String8(attr->tags + strlen("addr=")); 1488 ssize_t index = mPolicyMixes.indexOfKey(address); 1489 if (index < 0) { 1490 ALOGW("getInputForAttr() no policy for address %s", address.string()); 1491 return BAD_VALUE; 1492 } 1493 if (mPolicyMixes[index]->mMix.mMixType != MIX_TYPE_PLAYERS) { 1494 ALOGW("getInputForAttr() bad policy mix type for address %s", address.string()); 1495 return BAD_VALUE; 1496 } 1497 policyMix = &mPolicyMixes[index]->mMix; 1498 *inputType = API_INPUT_MIX_EXT_POLICY_REROUTE; 1499 } else { 1500 device = getDeviceAndMixForInputSource(inputSource, &policyMix); 1501 if (device == AUDIO_DEVICE_NONE) { 1502 ALOGW("getInputForAttr() could not find device for source %d", inputSource); 1503 return BAD_VALUE; 1504 } 1505 if (policyMix != NULL) { 1506 address = policyMix->mRegistrationId; 1507 if (policyMix->mMixType == MIX_TYPE_RECORDERS) { 1508 // there is an external policy, but this input is attached to a mix of recorders, 1509 // meaning it receives audio injected into the framework, so the recorder doesn't 1510 // know about it and is therefore considered "legacy" 1511 *inputType = API_INPUT_LEGACY; 1512 } else { 1513 // recording a mix of players defined by an external policy, we're rerouting for 1514 // an external policy 1515 *inputType = API_INPUT_MIX_EXT_POLICY_REROUTE; 1516 } 1517 } else if (audio_is_remote_submix_device(device)) { 1518 address = String8("0"); 1519 *inputType = API_INPUT_MIX_CAPTURE; 1520 } else { 1521 *inputType = API_INPUT_LEGACY; 1522 } 1523 // adapt channel selection to input source 1524 switch (inputSource) { 1525 case AUDIO_SOURCE_VOICE_UPLINK: 1526 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK; 1527 break; 1528 case AUDIO_SOURCE_VOICE_DOWNLINK: 1529 channelMask = AUDIO_CHANNEL_IN_VOICE_DNLINK; 1530 break; 1531 case AUDIO_SOURCE_VOICE_CALL: 1532 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK | AUDIO_CHANNEL_IN_VOICE_DNLINK; 1533 break; 1534 default: 1535 break; 1536 } 1537 if (inputSource == AUDIO_SOURCE_HOTWORD) { 1538 ssize_t index = mSoundTriggerSessions.indexOfKey(session); 1539 if (index >= 0) { 1540 *input = mSoundTriggerSessions.valueFor(session); 1541 isSoundTrigger = true; 1542 flags = (audio_input_flags_t)(flags | AUDIO_INPUT_FLAG_HW_HOTWORD); 1543 ALOGV("SoundTrigger capture on session %d input %d", session, *input); 1544 } else { 1545 halInputSource = AUDIO_SOURCE_VOICE_RECOGNITION; 1546 } 1547 } 1548 } 1549 1550 sp<IOProfile> profile = getInputProfile(device, address, 1551 samplingRate, format, channelMask, 1552 flags); 1553 if (profile == 0) { 1554 //retry without flags 1555 audio_input_flags_t log_flags = flags; 1556 flags = AUDIO_INPUT_FLAG_NONE; 1557 profile = getInputProfile(device, address, 1558 samplingRate, format, channelMask, 1559 flags); 1560 if (profile == 0) { 1561 ALOGW("getInputForAttr() could not find profile for device 0x%X, samplingRate %u," 1562 "format %#x, channelMask 0x%X, flags %#x", 1563 device, samplingRate, format, channelMask, log_flags); 1564 return BAD_VALUE; 1565 } 1566 } 1567 1568 if (profile->mModule->mHandle == 0) { 1569 ALOGE("getInputForAttr(): HW module %s not opened", profile->mModule->mName); 1570 return NO_INIT; 1571 } 1572 1573 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 1574 config.sample_rate = samplingRate; 1575 config.channel_mask = channelMask; 1576 config.format = format; 1577 1578 status_t status = mpClientInterface->openInput(profile->mModule->mHandle, 1579 input, 1580 &config, 1581 &device, 1582 address, 1583 halInputSource, 1584 flags); 1585 1586 // only accept input with the exact requested set of parameters 1587 if (status != NO_ERROR || *input == AUDIO_IO_HANDLE_NONE || 1588 (samplingRate != config.sample_rate) || 1589 (format != config.format) || 1590 (channelMask != config.channel_mask)) { 1591 ALOGW("getInputForAttr() failed opening input: samplingRate %d, format %d, channelMask %x", 1592 samplingRate, format, channelMask); 1593 if (*input != AUDIO_IO_HANDLE_NONE) { 1594 mpClientInterface->closeInput(*input); 1595 } 1596 return BAD_VALUE; 1597 } 1598 1599 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(profile); 1600 inputDesc->mInputSource = inputSource; 1601 inputDesc->mRefCount = 0; 1602 inputDesc->mOpenRefCount = 1; 1603 inputDesc->mSamplingRate = samplingRate; 1604 inputDesc->mFormat = format; 1605 inputDesc->mChannelMask = channelMask; 1606 inputDesc->mDevice = device; 1607 inputDesc->mSessions.add(session); 1608 inputDesc->mIsSoundTrigger = isSoundTrigger; 1609 inputDesc->mPolicyMix = policyMix; 1610 1611 ALOGV("getInputForAttr() returns input type = %d", inputType); 1612 1613 addInput(*input, inputDesc); 1614 mpClientInterface->onAudioPortListUpdate(); 1615 return NO_ERROR; 1616 } 1617 1618 status_t AudioPolicyManager::startInput(audio_io_handle_t input, 1619 audio_session_t session) 1620 { 1621 ALOGV("startInput() input %d", input); 1622 ssize_t index = mInputs.indexOfKey(input); 1623 if (index < 0) { 1624 ALOGW("startInput() unknown input %d", input); 1625 return BAD_VALUE; 1626 } 1627 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1628 1629 index = inputDesc->mSessions.indexOf(session); 1630 if (index < 0) { 1631 ALOGW("startInput() unknown session %d on input %d", session, input); 1632 return BAD_VALUE; 1633 } 1634 1635 // virtual input devices are compatible with other input devices 1636 if (!isVirtualInputDevice(inputDesc->mDevice)) { 1637 1638 // for a non-virtual input device, check if there is another (non-virtual) active input 1639 audio_io_handle_t activeInput = getActiveInput(); 1640 if (activeInput != 0 && activeInput != input) { 1641 1642 // If the already active input uses AUDIO_SOURCE_HOTWORD then it is closed, 1643 // otherwise the active input continues and the new input cannot be started. 1644 sp<AudioInputDescriptor> activeDesc = mInputs.valueFor(activeInput); 1645 if (activeDesc->mInputSource == AUDIO_SOURCE_HOTWORD) { 1646 ALOGW("startInput(%d) preempting low-priority input %d", input, activeInput); 1647 stopInput(activeInput, activeDesc->mSessions.itemAt(0)); 1648 releaseInput(activeInput, activeDesc->mSessions.itemAt(0)); 1649 } else { 1650 ALOGE("startInput(%d) failed: other input %d already started", input, activeInput); 1651 return INVALID_OPERATION; 1652 } 1653 } 1654 } 1655 1656 if (inputDesc->mRefCount == 0) { 1657 if (activeInputsCount() == 0) { 1658 SoundTrigger::setCaptureState(true); 1659 } 1660 setInputDevice(input, getNewInputDevice(input), true /* force */); 1661 1662 // automatically enable the remote submix output when input is started if not 1663 // used by a policy mix of type MIX_TYPE_RECORDERS 1664 // For remote submix (a virtual device), we open only one input per capture request. 1665 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1666 String8 address = String8(""); 1667 if (inputDesc->mPolicyMix == NULL) { 1668 address = String8("0"); 1669 } else if (inputDesc->mPolicyMix->mMixType == MIX_TYPE_PLAYERS) { 1670 address = inputDesc->mPolicyMix->mRegistrationId; 1671 } 1672 if (address != "") { 1673 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1674 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 1675 address); 1676 } 1677 } 1678 } 1679 1680 ALOGV("AudioPolicyManager::startInput() input source = %d", inputDesc->mInputSource); 1681 1682 inputDesc->mRefCount++; 1683 return NO_ERROR; 1684 } 1685 1686 status_t AudioPolicyManager::stopInput(audio_io_handle_t input, 1687 audio_session_t session) 1688 { 1689 ALOGV("stopInput() input %d", input); 1690 ssize_t index = mInputs.indexOfKey(input); 1691 if (index < 0) { 1692 ALOGW("stopInput() unknown input %d", input); 1693 return BAD_VALUE; 1694 } 1695 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1696 1697 index = inputDesc->mSessions.indexOf(session); 1698 if (index < 0) { 1699 ALOGW("stopInput() unknown session %d on input %d", session, input); 1700 return BAD_VALUE; 1701 } 1702 1703 if (inputDesc->mRefCount == 0) { 1704 ALOGW("stopInput() input %d already stopped", input); 1705 return INVALID_OPERATION; 1706 } 1707 1708 inputDesc->mRefCount--; 1709 if (inputDesc->mRefCount == 0) { 1710 1711 // automatically disable the remote submix output when input is stopped if not 1712 // used by a policy mix of type MIX_TYPE_RECORDERS 1713 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1714 String8 address = String8(""); 1715 if (inputDesc->mPolicyMix == NULL) { 1716 address = String8("0"); 1717 } else if (inputDesc->mPolicyMix->mMixType == MIX_TYPE_PLAYERS) { 1718 address = inputDesc->mPolicyMix->mRegistrationId; 1719 } 1720 if (address != "") { 1721 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1722 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 1723 address); 1724 } 1725 } 1726 1727 resetInputDevice(input); 1728 1729 if (activeInputsCount() == 0) { 1730 SoundTrigger::setCaptureState(false); 1731 } 1732 } 1733 return NO_ERROR; 1734 } 1735 1736 void AudioPolicyManager::releaseInput(audio_io_handle_t input, 1737 audio_session_t session) 1738 { 1739 ALOGV("releaseInput() %d", input); 1740 ssize_t index = mInputs.indexOfKey(input); 1741 if (index < 0) { 1742 ALOGW("releaseInput() releasing unknown input %d", input); 1743 return; 1744 } 1745 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1746 ALOG_ASSERT(inputDesc != 0); 1747 1748 index = inputDesc->mSessions.indexOf(session); 1749 if (index < 0) { 1750 ALOGW("releaseInput() unknown session %d on input %d", session, input); 1751 return; 1752 } 1753 inputDesc->mSessions.remove(session); 1754 if (inputDesc->mOpenRefCount == 0) { 1755 ALOGW("releaseInput() invalid open ref count %d", inputDesc->mOpenRefCount); 1756 return; 1757 } 1758 inputDesc->mOpenRefCount--; 1759 if (inputDesc->mOpenRefCount > 0) { 1760 ALOGV("releaseInput() exit > 0"); 1761 return; 1762 } 1763 1764 closeInput(input); 1765 mpClientInterface->onAudioPortListUpdate(); 1766 ALOGV("releaseInput() exit"); 1767 } 1768 1769 void AudioPolicyManager::closeAllInputs() { 1770 bool patchRemoved = false; 1771 1772 for(size_t input_index = 0; input_index < mInputs.size(); input_index++) { 1773 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(input_index); 1774 ssize_t patch_index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 1775 if (patch_index >= 0) { 1776 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(patch_index); 1777 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 1778 mAudioPatches.removeItemsAt(patch_index); 1779 patchRemoved = true; 1780 } 1781 mpClientInterface->closeInput(mInputs.keyAt(input_index)); 1782 } 1783 mInputs.clear(); 1784 nextAudioPortGeneration(); 1785 1786 if (patchRemoved) { 1787 mpClientInterface->onAudioPatchListUpdate(); 1788 } 1789 } 1790 1791 void AudioPolicyManager::initStreamVolume(audio_stream_type_t stream, 1792 int indexMin, 1793 int indexMax) 1794 { 1795 ALOGV("initStreamVolume() stream %d, min %d, max %d", stream , indexMin, indexMax); 1796 if (indexMin < 0 || indexMin >= indexMax) { 1797 ALOGW("initStreamVolume() invalid index limits for stream %d, min %d, max %d", stream , indexMin, indexMax); 1798 return; 1799 } 1800 mStreams[stream].mIndexMin = indexMin; 1801 mStreams[stream].mIndexMax = indexMax; 1802 //FIXME: AUDIO_STREAM_ACCESSIBILITY volume follows AUDIO_STREAM_MUSIC for now 1803 if (stream == AUDIO_STREAM_MUSIC) { 1804 mStreams[AUDIO_STREAM_ACCESSIBILITY].mIndexMin = indexMin; 1805 mStreams[AUDIO_STREAM_ACCESSIBILITY].mIndexMax = indexMax; 1806 } 1807 } 1808 1809 status_t AudioPolicyManager::setStreamVolumeIndex(audio_stream_type_t stream, 1810 int index, 1811 audio_devices_t device) 1812 { 1813 1814 if ((index < mStreams[stream].mIndexMin) || (index > mStreams[stream].mIndexMax)) { 1815 return BAD_VALUE; 1816 } 1817 if (!audio_is_output_device(device)) { 1818 return BAD_VALUE; 1819 } 1820 1821 // Force max volume if stream cannot be muted 1822 if (!mStreams[stream].mCanBeMuted) index = mStreams[stream].mIndexMax; 1823 1824 ALOGV("setStreamVolumeIndex() stream %d, device %04x, index %d", 1825 stream, device, index); 1826 1827 // if device is AUDIO_DEVICE_OUT_DEFAULT set default value and 1828 // clear all device specific values 1829 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1830 mStreams[stream].mIndexCur.clear(); 1831 } 1832 mStreams[stream].mIndexCur.add(device, index); 1833 1834 // update volume on all outputs whose current device is also selected by the same 1835 // strategy as the device specified by the caller 1836 audio_devices_t strategyDevice = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1837 1838 1839 //FIXME: AUDIO_STREAM_ACCESSIBILITY volume follows AUDIO_STREAM_MUSIC for now 1840 audio_devices_t accessibilityDevice = AUDIO_DEVICE_NONE; 1841 if (stream == AUDIO_STREAM_MUSIC) { 1842 mStreams[AUDIO_STREAM_ACCESSIBILITY].mIndexCur.add(device, index); 1843 accessibilityDevice = getDeviceForStrategy(STRATEGY_ACCESSIBILITY, true /*fromCache*/); 1844 } 1845 if ((device != AUDIO_DEVICE_OUT_DEFAULT) && 1846 (device & (strategyDevice | accessibilityDevice)) == 0) { 1847 return NO_ERROR; 1848 } 1849 status_t status = NO_ERROR; 1850 for (size_t i = 0; i < mOutputs.size(); i++) { 1851 audio_devices_t curDevice = 1852 getDeviceForVolume(mOutputs.valueAt(i)->device()); 1853 if ((device == AUDIO_DEVICE_OUT_DEFAULT) || ((curDevice & strategyDevice) != 0)) { 1854 status_t volStatus = checkAndSetVolume(stream, index, mOutputs.keyAt(i), curDevice); 1855 if (volStatus != NO_ERROR) { 1856 status = volStatus; 1857 } 1858 } 1859 if ((device == AUDIO_DEVICE_OUT_DEFAULT) || ((curDevice & accessibilityDevice) != 0)) { 1860 status_t volStatus = checkAndSetVolume(AUDIO_STREAM_ACCESSIBILITY, 1861 index, mOutputs.keyAt(i), curDevice); 1862 } 1863 } 1864 return status; 1865 } 1866 1867 status_t AudioPolicyManager::getStreamVolumeIndex(audio_stream_type_t stream, 1868 int *index, 1869 audio_devices_t device) 1870 { 1871 if (index == NULL) { 1872 return BAD_VALUE; 1873 } 1874 if (!audio_is_output_device(device)) { 1875 return BAD_VALUE; 1876 } 1877 // if device is AUDIO_DEVICE_OUT_DEFAULT, return volume for device corresponding to 1878 // the strategy the stream belongs to. 1879 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1880 device = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1881 } 1882 device = getDeviceForVolume(device); 1883 1884 *index = mStreams[stream].getVolumeIndex(device); 1885 ALOGV("getStreamVolumeIndex() stream %d device %08x index %d", stream, device, *index); 1886 return NO_ERROR; 1887 } 1888 1889 audio_io_handle_t AudioPolicyManager::selectOutputForEffects( 1890 const SortedVector<audio_io_handle_t>& outputs) 1891 { 1892 // select one output among several suitable for global effects. 1893 // The priority is as follows: 1894 // 1: An offloaded output. If the effect ends up not being offloadable, 1895 // AudioFlinger will invalidate the track and the offloaded output 1896 // will be closed causing the effect to be moved to a PCM output. 1897 // 2: A deep buffer output 1898 // 3: the first output in the list 1899 1900 if (outputs.size() == 0) { 1901 return 0; 1902 } 1903 1904 audio_io_handle_t outputOffloaded = 0; 1905 audio_io_handle_t outputDeepBuffer = 0; 1906 1907 for (size_t i = 0; i < outputs.size(); i++) { 1908 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 1909 ALOGV("selectOutputForEffects outputs[%zu] flags %x", i, desc->mFlags); 1910 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1911 outputOffloaded = outputs[i]; 1912 } 1913 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) != 0) { 1914 outputDeepBuffer = outputs[i]; 1915 } 1916 } 1917 1918 ALOGV("selectOutputForEffects outputOffloaded %d outputDeepBuffer %d", 1919 outputOffloaded, outputDeepBuffer); 1920 if (outputOffloaded != 0) { 1921 return outputOffloaded; 1922 } 1923 if (outputDeepBuffer != 0) { 1924 return outputDeepBuffer; 1925 } 1926 1927 return outputs[0]; 1928 } 1929 1930 audio_io_handle_t AudioPolicyManager::getOutputForEffect(const effect_descriptor_t *desc) 1931 { 1932 // apply simple rule where global effects are attached to the same output as MUSIC streams 1933 1934 routing_strategy strategy = getStrategy(AUDIO_STREAM_MUSIC); 1935 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 1936 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(device, mOutputs); 1937 1938 audio_io_handle_t output = selectOutputForEffects(dstOutputs); 1939 ALOGV("getOutputForEffect() got output %d for fx %s flags %x", 1940 output, (desc == NULL) ? "unspecified" : desc->name, (desc == NULL) ? 0 : desc->flags); 1941 1942 return output; 1943 } 1944 1945 status_t AudioPolicyManager::registerEffect(const effect_descriptor_t *desc, 1946 audio_io_handle_t io, 1947 uint32_t strategy, 1948 int session, 1949 int id) 1950 { 1951 ssize_t index = mOutputs.indexOfKey(io); 1952 if (index < 0) { 1953 index = mInputs.indexOfKey(io); 1954 if (index < 0) { 1955 ALOGW("registerEffect() unknown io %d", io); 1956 return INVALID_OPERATION; 1957 } 1958 } 1959 1960 if (mTotalEffectsMemory + desc->memoryUsage > getMaxEffectsMemory()) { 1961 ALOGW("registerEffect() memory limit exceeded for Fx %s, Memory %d KB", 1962 desc->name, desc->memoryUsage); 1963 return INVALID_OPERATION; 1964 } 1965 mTotalEffectsMemory += desc->memoryUsage; 1966 ALOGV("registerEffect() effect %s, io %d, strategy %d session %d id %d", 1967 desc->name, io, strategy, session, id); 1968 ALOGV("registerEffect() memory %d, total memory %d", desc->memoryUsage, mTotalEffectsMemory); 1969 1970 sp<EffectDescriptor> effectDesc = new EffectDescriptor(); 1971 memcpy (&effectDesc->mDesc, desc, sizeof(effect_descriptor_t)); 1972 effectDesc->mIo = io; 1973 effectDesc->mStrategy = (routing_strategy)strategy; 1974 effectDesc->mSession = session; 1975 effectDesc->mEnabled = false; 1976 1977 mEffects.add(id, effectDesc); 1978 1979 return NO_ERROR; 1980 } 1981 1982 status_t AudioPolicyManager::unregisterEffect(int id) 1983 { 1984 ssize_t index = mEffects.indexOfKey(id); 1985 if (index < 0) { 1986 ALOGW("unregisterEffect() unknown effect ID %d", id); 1987 return INVALID_OPERATION; 1988 } 1989 1990 sp<EffectDescriptor> effectDesc = mEffects.valueAt(index); 1991 1992 setEffectEnabled(effectDesc, false); 1993 1994 if (mTotalEffectsMemory < effectDesc->mDesc.memoryUsage) { 1995 ALOGW("unregisterEffect() memory %d too big for total %d", 1996 effectDesc->mDesc.memoryUsage, mTotalEffectsMemory); 1997 effectDesc->mDesc.memoryUsage = mTotalEffectsMemory; 1998 } 1999 mTotalEffectsMemory -= effectDesc->mDesc.memoryUsage; 2000 ALOGV("unregisterEffect() effect %s, ID %d, memory %d total memory %d", 2001 effectDesc->mDesc.name, id, effectDesc->mDesc.memoryUsage, mTotalEffectsMemory); 2002 2003 mEffects.removeItem(id); 2004 2005 return NO_ERROR; 2006 } 2007 2008 status_t AudioPolicyManager::setEffectEnabled(int id, bool enabled) 2009 { 2010 ssize_t index = mEffects.indexOfKey(id); 2011 if (index < 0) { 2012 ALOGW("unregisterEffect() unknown effect ID %d", id); 2013 return INVALID_OPERATION; 2014 } 2015 2016 return setEffectEnabled(mEffects.valueAt(index), enabled); 2017 } 2018 2019 status_t AudioPolicyManager::setEffectEnabled(const sp<EffectDescriptor>& effectDesc, bool enabled) 2020 { 2021 if (enabled == effectDesc->mEnabled) { 2022 ALOGV("setEffectEnabled(%s) effect already %s", 2023 enabled?"true":"false", enabled?"enabled":"disabled"); 2024 return INVALID_OPERATION; 2025 } 2026 2027 if (enabled) { 2028 if (mTotalEffectsCpuLoad + effectDesc->mDesc.cpuLoad > getMaxEffectsCpuLoad()) { 2029 ALOGW("setEffectEnabled(true) CPU Load limit exceeded for Fx %s, CPU %f MIPS", 2030 effectDesc->mDesc.name, (float)effectDesc->mDesc.cpuLoad/10); 2031 return INVALID_OPERATION; 2032 } 2033 mTotalEffectsCpuLoad += effectDesc->mDesc.cpuLoad; 2034 ALOGV("setEffectEnabled(true) total CPU %d", mTotalEffectsCpuLoad); 2035 } else { 2036 if (mTotalEffectsCpuLoad < effectDesc->mDesc.cpuLoad) { 2037 ALOGW("setEffectEnabled(false) CPU load %d too high for total %d", 2038 effectDesc->mDesc.cpuLoad, mTotalEffectsCpuLoad); 2039 effectDesc->mDesc.cpuLoad = mTotalEffectsCpuLoad; 2040 } 2041 mTotalEffectsCpuLoad -= effectDesc->mDesc.cpuLoad; 2042 ALOGV("setEffectEnabled(false) total CPU %d", mTotalEffectsCpuLoad); 2043 } 2044 effectDesc->mEnabled = enabled; 2045 return NO_ERROR; 2046 } 2047 2048 bool AudioPolicyManager::isNonOffloadableEffectEnabled() 2049 { 2050 for (size_t i = 0; i < mEffects.size(); i++) { 2051 sp<EffectDescriptor> effectDesc = mEffects.valueAt(i); 2052 if (effectDesc->mEnabled && (effectDesc->mStrategy == STRATEGY_MEDIA) && 2053 ((effectDesc->mDesc.flags & EFFECT_FLAG_OFFLOAD_SUPPORTED) == 0)) { 2054 ALOGV("isNonOffloadableEffectEnabled() non offloadable effect %s enabled on session %d", 2055 effectDesc->mDesc.name, effectDesc->mSession); 2056 return true; 2057 } 2058 } 2059 return false; 2060 } 2061 2062 bool AudioPolicyManager::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const 2063 { 2064 nsecs_t sysTime = systemTime(); 2065 for (size_t i = 0; i < mOutputs.size(); i++) { 2066 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 2067 if (outputDesc->isStreamActive(stream, inPastMs, sysTime)) { 2068 return true; 2069 } 2070 } 2071 return false; 2072 } 2073 2074 bool AudioPolicyManager::isStreamActiveRemotely(audio_stream_type_t stream, 2075 uint32_t inPastMs) const 2076 { 2077 nsecs_t sysTime = systemTime(); 2078 for (size_t i = 0; i < mOutputs.size(); i++) { 2079 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 2080 if (((outputDesc->device() & APM_AUDIO_OUT_DEVICE_REMOTE_ALL) != 0) && 2081 outputDesc->isStreamActive(stream, inPastMs, sysTime)) { 2082 // do not consider re routing (when the output is going to a dynamic policy) 2083 // as "remote playback" 2084 if (outputDesc->mPolicyMix == NULL) { 2085 return true; 2086 } 2087 } 2088 } 2089 return false; 2090 } 2091 2092 bool AudioPolicyManager::isSourceActive(audio_source_t source) const 2093 { 2094 for (size_t i = 0; i < mInputs.size(); i++) { 2095 const sp<AudioInputDescriptor> inputDescriptor = mInputs.valueAt(i); 2096 if (inputDescriptor->mRefCount == 0) { 2097 continue; 2098 } 2099 if (inputDescriptor->mInputSource == (int)source) { 2100 return true; 2101 } 2102 // AUDIO_SOURCE_HOTWORD is equivalent to AUDIO_SOURCE_VOICE_RECOGNITION only if it 2103 // corresponds to an active capture triggered by a hardware hotword recognition 2104 if ((source == AUDIO_SOURCE_VOICE_RECOGNITION) && 2105 (inputDescriptor->mInputSource == AUDIO_SOURCE_HOTWORD)) { 2106 // FIXME: we should not assume that the first session is the active one and keep 2107 // activity count per session. Same in startInput(). 2108 ssize_t index = mSoundTriggerSessions.indexOfKey(inputDescriptor->mSessions.itemAt(0)); 2109 if (index >= 0) { 2110 return true; 2111 } 2112 } 2113 } 2114 return false; 2115 } 2116 2117 // Register a list of custom mixes with their attributes and format. 2118 // When a mix is registered, corresponding input and output profiles are 2119 // added to the remote submix hw module. The profile contains only the 2120 // parameters (sampling rate, format...) specified by the mix. 2121 // The corresponding input remote submix device is also connected. 2122 // 2123 // When a remote submix device is connected, the address is checked to select the 2124 // appropriate profile and the corresponding input or output stream is opened. 2125 // 2126 // When capture starts, getInputForAttr() will: 2127 // - 1 look for a mix matching the address passed in attribtutes tags if any 2128 // - 2 if none found, getDeviceForInputSource() will: 2129 // - 2.1 look for a mix matching the attributes source 2130 // - 2.2 if none found, default to device selection by policy rules 2131 // At this time, the corresponding output remote submix device is also connected 2132 // and active playback use cases can be transferred to this mix if needed when reconnecting 2133 // after AudioTracks are invalidated 2134 // 2135 // When playback starts, getOutputForAttr() will: 2136 // - 1 look for a mix matching the address passed in attribtutes tags if any 2137 // - 2 if none found, look for a mix matching the attributes usage 2138 // - 3 if none found, default to device and output selection by policy rules. 2139 2140 status_t AudioPolicyManager::registerPolicyMixes(Vector<AudioMix> mixes) 2141 { 2142 sp<HwModule> module; 2143 for (size_t i = 0; i < mHwModules.size(); i++) { 2144 if (strcmp(AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX, mHwModules[i]->mName) == 0 && 2145 mHwModules[i]->mHandle != 0) { 2146 module = mHwModules[i]; 2147 break; 2148 } 2149 } 2150 2151 if (module == 0) { 2152 return INVALID_OPERATION; 2153 } 2154 2155 ALOGV("registerPolicyMixes() num mixes %d", mixes.size()); 2156 2157 for (size_t i = 0; i < mixes.size(); i++) { 2158 String8 address = mixes[i].mRegistrationId; 2159 ssize_t index = mPolicyMixes.indexOfKey(address); 2160 if (index >= 0) { 2161 ALOGE("registerPolicyMixes(): mix for address %s already registered", address.string()); 2162 continue; 2163 } 2164 audio_config_t outputConfig = mixes[i].mFormat; 2165 audio_config_t inputConfig = mixes[i].mFormat; 2166 // NOTE: audio flinger mixer does not support mono output: configure remote submix HAL in 2167 // stereo and let audio flinger do the channel conversion if needed. 2168 outputConfig.channel_mask = AUDIO_CHANNEL_OUT_STEREO; 2169 inputConfig.channel_mask = AUDIO_CHANNEL_IN_STEREO; 2170 module->addOutputProfile(address, &outputConfig, 2171 AUDIO_DEVICE_OUT_REMOTE_SUBMIX, address); 2172 module->addInputProfile(address, &inputConfig, 2173 AUDIO_DEVICE_IN_REMOTE_SUBMIX, address); 2174 sp<AudioPolicyMix> policyMix = new AudioPolicyMix(); 2175 policyMix->mMix = mixes[i]; 2176 mPolicyMixes.add(address, policyMix); 2177 if (mixes[i].mMixType == MIX_TYPE_PLAYERS) { 2178 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 2179 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 2180 address.string()); 2181 } else { 2182 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 2183 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 2184 address.string()); 2185 } 2186 } 2187 return NO_ERROR; 2188 } 2189 2190 status_t AudioPolicyManager::unregisterPolicyMixes(Vector<AudioMix> mixes) 2191 { 2192 sp<HwModule> module; 2193 for (size_t i = 0; i < mHwModules.size(); i++) { 2194 if (strcmp(AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX, mHwModules[i]->mName) == 0 && 2195 mHwModules[i]->mHandle != 0) { 2196 module = mHwModules[i]; 2197 break; 2198 } 2199 } 2200 2201 if (module == 0) { 2202 return INVALID_OPERATION; 2203 } 2204 2205 ALOGV("unregisterPolicyMixes() num mixes %d", mixes.size()); 2206 2207 for (size_t i = 0; i < mixes.size(); i++) { 2208 String8 address = mixes[i].mRegistrationId; 2209 ssize_t index = mPolicyMixes.indexOfKey(address); 2210 if (index < 0) { 2211 ALOGE("unregisterPolicyMixes(): mix for address %s not registered", address.string()); 2212 continue; 2213 } 2214 2215 mPolicyMixes.removeItemsAt(index); 2216 2217 if (getDeviceConnectionState(AUDIO_DEVICE_IN_REMOTE_SUBMIX, address.string()) == 2218 AUDIO_POLICY_DEVICE_STATE_AVAILABLE) 2219 { 2220 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 2221 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 2222 address.string()); 2223 } 2224 2225 if (getDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, address.string()) == 2226 AUDIO_POLICY_DEVICE_STATE_AVAILABLE) 2227 { 2228 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 2229 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 2230 address.string()); 2231 } 2232 module->removeOutputProfile(address); 2233 module->removeInputProfile(address); 2234 } 2235 return NO_ERROR; 2236 } 2237 2238 2239 status_t AudioPolicyManager::dump(int fd) 2240 { 2241 const size_t SIZE = 256; 2242 char buffer[SIZE]; 2243 String8 result; 2244 2245 snprintf(buffer, SIZE, "\nAudioPolicyManager Dump: %p\n", this); 2246 result.append(buffer); 2247 2248 snprintf(buffer, SIZE, " Primary Output: %d\n", mPrimaryOutput); 2249 result.append(buffer); 2250 snprintf(buffer, SIZE, " Phone state: %d\n", mPhoneState); 2251 result.append(buffer); 2252 snprintf(buffer, SIZE, " Force use for communications %d\n", 2253 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]); 2254 result.append(buffer); 2255 snprintf(buffer, SIZE, " Force use for media %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA]); 2256 result.append(buffer); 2257 snprintf(buffer, SIZE, " Force use for record %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD]); 2258 result.append(buffer); 2259 snprintf(buffer, SIZE, " Force use for dock %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK]); 2260 result.append(buffer); 2261 snprintf(buffer, SIZE, " Force use for system %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM]); 2262 result.append(buffer); 2263 snprintf(buffer, SIZE, " Force use for hdmi system audio %d\n", 2264 mForceUse[AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO]); 2265 result.append(buffer); 2266 2267 snprintf(buffer, SIZE, " Available output devices:\n"); 2268 result.append(buffer); 2269 write(fd, result.string(), result.size()); 2270 for (size_t i = 0; i < mAvailableOutputDevices.size(); i++) { 2271 mAvailableOutputDevices[i]->dump(fd, 2, i); 2272 } 2273 snprintf(buffer, SIZE, "\n Available input devices:\n"); 2274 write(fd, buffer, strlen(buffer)); 2275 for (size_t i = 0; i < mAvailableInputDevices.size(); i++) { 2276 mAvailableInputDevices[i]->dump(fd, 2, i); 2277 } 2278 2279 snprintf(buffer, SIZE, "\nHW Modules dump:\n"); 2280 write(fd, buffer, strlen(buffer)); 2281 for (size_t i = 0; i < mHwModules.size(); i++) { 2282 snprintf(buffer, SIZE, "- HW Module %zu:\n", i + 1); 2283 write(fd, buffer, strlen(buffer)); 2284 mHwModules[i]->dump(fd); 2285 } 2286 2287 snprintf(buffer, SIZE, "\nOutputs dump:\n"); 2288 write(fd, buffer, strlen(buffer)); 2289 for (size_t i = 0; i < mOutputs.size(); i++) { 2290 snprintf(buffer, SIZE, "- Output %d dump:\n", mOutputs.keyAt(i)); 2291 write(fd, buffer, strlen(buffer)); 2292 mOutputs.valueAt(i)->dump(fd); 2293 } 2294 2295 snprintf(buffer, SIZE, "\nInputs dump:\n"); 2296 write(fd, buffer, strlen(buffer)); 2297 for (size_t i = 0; i < mInputs.size(); i++) { 2298 snprintf(buffer, SIZE, "- Input %d dump:\n", mInputs.keyAt(i)); 2299 write(fd, buffer, strlen(buffer)); 2300 mInputs.valueAt(i)->dump(fd); 2301 } 2302 2303 snprintf(buffer, SIZE, "\nStreams dump:\n"); 2304 write(fd, buffer, strlen(buffer)); 2305 snprintf(buffer, SIZE, 2306 " Stream Can be muted Index Min Index Max Index Cur [device : index]...\n"); 2307 write(fd, buffer, strlen(buffer)); 2308 for (size_t i = 0; i < AUDIO_STREAM_CNT; i++) { 2309 snprintf(buffer, SIZE, " %02zu ", i); 2310 write(fd, buffer, strlen(buffer)); 2311 mStreams[i].dump(fd); 2312 } 2313 2314 snprintf(buffer, SIZE, "\nTotal Effects CPU: %f MIPS, Total Effects memory: %d KB\n", 2315 (float)mTotalEffectsCpuLoad/10, mTotalEffectsMemory); 2316 write(fd, buffer, strlen(buffer)); 2317 2318 snprintf(buffer, SIZE, "Registered effects:\n"); 2319 write(fd, buffer, strlen(buffer)); 2320 for (size_t i = 0; i < mEffects.size(); i++) { 2321 snprintf(buffer, SIZE, "- Effect %d dump:\n", mEffects.keyAt(i)); 2322 write(fd, buffer, strlen(buffer)); 2323 mEffects.valueAt(i)->dump(fd); 2324 } 2325 2326 snprintf(buffer, SIZE, "\nAudio Patches:\n"); 2327 write(fd, buffer, strlen(buffer)); 2328 for (size_t i = 0; i < mAudioPatches.size(); i++) { 2329 mAudioPatches[i]->dump(fd, 2, i); 2330 } 2331 2332 return NO_ERROR; 2333 } 2334 2335 // This function checks for the parameters which can be offloaded. 2336 // This can be enhanced depending on the capability of the DSP and policy 2337 // of the system. 2338 bool AudioPolicyManager::isOffloadSupported(const audio_offload_info_t& offloadInfo) 2339 { 2340 ALOGV("isOffloadSupported: SR=%u, CM=0x%x, Format=0x%x, StreamType=%d," 2341 " BitRate=%u, duration=%" PRId64 " us, has_video=%d", 2342 offloadInfo.sample_rate, offloadInfo.channel_mask, 2343 offloadInfo.format, 2344 offloadInfo.stream_type, offloadInfo.bit_rate, offloadInfo.duration_us, 2345 offloadInfo.has_video); 2346 2347 // Check if offload has been disabled 2348 char propValue[PROPERTY_VALUE_MAX]; 2349 if (property_get("audio.offload.disable", propValue, "0")) { 2350 if (atoi(propValue) != 0) { 2351 ALOGV("offload disabled by audio.offload.disable=%s", propValue ); 2352 return false; 2353 } 2354 } 2355 2356 // Check if stream type is music, then only allow offload as of now. 2357 if (offloadInfo.stream_type != AUDIO_STREAM_MUSIC) 2358 { 2359 ALOGV("isOffloadSupported: stream_type != MUSIC, returning false"); 2360 return false; 2361 } 2362 2363 //TODO: enable audio offloading with video when ready 2364 if (offloadInfo.has_video) 2365 { 2366 ALOGV("isOffloadSupported: has_video == true, returning false"); 2367 return false; 2368 } 2369 2370 //If duration is less than minimum value defined in property, return false 2371 if (property_get("audio.offload.min.duration.secs", propValue, NULL)) { 2372 if (offloadInfo.duration_us < (atoi(propValue) * 1000000 )) { 2373 ALOGV("Offload denied by duration < audio.offload.min.duration.secs(=%s)", propValue); 2374 return false; 2375 } 2376 } else if (offloadInfo.duration_us < OFFLOAD_DEFAULT_MIN_DURATION_SECS * 1000000) { 2377 ALOGV("Offload denied by duration < default min(=%u)", OFFLOAD_DEFAULT_MIN_DURATION_SECS); 2378 return false; 2379 } 2380 2381 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 2382 // creating an offloaded track and tearing it down immediately after start when audioflinger 2383 // detects there is an active non offloadable effect. 2384 // FIXME: We should check the audio session here but we do not have it in this context. 2385 // This may prevent offloading in rare situations where effects are left active by apps 2386 // in the background. 2387 if (isNonOffloadableEffectEnabled()) { 2388 return false; 2389 } 2390 2391 // See if there is a profile to support this. 2392 // AUDIO_DEVICE_NONE 2393 sp<IOProfile> profile = getProfileForDirectOutput(AUDIO_DEVICE_NONE /*ignore device */, 2394 offloadInfo.sample_rate, 2395 offloadInfo.format, 2396 offloadInfo.channel_mask, 2397 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD); 2398 ALOGV("isOffloadSupported() profile %sfound", profile != 0 ? "" : "NOT "); 2399 return (profile != 0); 2400 } 2401 2402 status_t AudioPolicyManager::listAudioPorts(audio_port_role_t role, 2403 audio_port_type_t type, 2404 unsigned int *num_ports, 2405 struct audio_port *ports, 2406 unsigned int *generation) 2407 { 2408 if (num_ports == NULL || (*num_ports != 0 && ports == NULL) || 2409 generation == NULL) { 2410 return BAD_VALUE; 2411 } 2412 ALOGV("listAudioPorts() role %d type %d num_ports %d ports %p", role, type, *num_ports, ports); 2413 if (ports == NULL) { 2414 *num_ports = 0; 2415 } 2416 2417 size_t portsWritten = 0; 2418 size_t portsMax = *num_ports; 2419 *num_ports = 0; 2420 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_DEVICE) { 2421 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 2422 for (size_t i = 0; 2423 i < mAvailableOutputDevices.size() && portsWritten < portsMax; i++) { 2424 mAvailableOutputDevices[i]->toAudioPort(&ports[portsWritten++]); 2425 } 2426 *num_ports += mAvailableOutputDevices.size(); 2427 } 2428 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 2429 for (size_t i = 0; 2430 i < mAvailableInputDevices.size() && portsWritten < portsMax; i++) { 2431 mAvailableInputDevices[i]->toAudioPort(&ports[portsWritten++]); 2432 } 2433 *num_ports += mAvailableInputDevices.size(); 2434 } 2435 } 2436 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_MIX) { 2437 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 2438 for (size_t i = 0; i < mInputs.size() && portsWritten < portsMax; i++) { 2439 mInputs[i]->toAudioPort(&ports[portsWritten++]); 2440 } 2441 *num_ports += mInputs.size(); 2442 } 2443 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 2444 size_t numOutputs = 0; 2445 for (size_t i = 0; i < mOutputs.size(); i++) { 2446 if (!mOutputs[i]->isDuplicated()) { 2447 numOutputs++; 2448 if (portsWritten < portsMax) { 2449 mOutputs[i]->toAudioPort(&ports[portsWritten++]); 2450 } 2451 } 2452 } 2453 *num_ports += numOutputs; 2454 } 2455 } 2456 *generation = curAudioPortGeneration(); 2457 ALOGV("listAudioPorts() got %zu ports needed %d", portsWritten, *num_ports); 2458 return NO_ERROR; 2459 } 2460 2461 status_t AudioPolicyManager::getAudioPort(struct audio_port *port __unused) 2462 { 2463 return NO_ERROR; 2464 } 2465 2466 sp<AudioPolicyManager::AudioOutputDescriptor> AudioPolicyManager::getOutputFromId( 2467 audio_port_handle_t id) const 2468 { 2469 sp<AudioOutputDescriptor> outputDesc = NULL; 2470 for (size_t i = 0; i < mOutputs.size(); i++) { 2471 outputDesc = mOutputs.valueAt(i); 2472 if (outputDesc->mId == id) { 2473 break; 2474 } 2475 } 2476 return outputDesc; 2477 } 2478 2479 sp<AudioPolicyManager::AudioInputDescriptor> AudioPolicyManager::getInputFromId( 2480 audio_port_handle_t id) const 2481 { 2482 sp<AudioInputDescriptor> inputDesc = NULL; 2483 for (size_t i = 0; i < mInputs.size(); i++) { 2484 inputDesc = mInputs.valueAt(i); 2485 if (inputDesc->mId == id) { 2486 break; 2487 } 2488 } 2489 return inputDesc; 2490 } 2491 2492 sp <AudioPolicyManager::HwModule> AudioPolicyManager::getModuleForDevice( 2493 audio_devices_t device) const 2494 { 2495 sp <HwModule> module; 2496 2497 for (size_t i = 0; i < mHwModules.size(); i++) { 2498 if (mHwModules[i]->mHandle == 0) { 2499 continue; 2500 } 2501 if (audio_is_output_device(device)) { 2502 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 2503 { 2504 if (mHwModules[i]->mOutputProfiles[j]->mSupportedDevices.types() & device) { 2505 return mHwModules[i]; 2506 } 2507 } 2508 } else { 2509 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) { 2510 if (mHwModules[i]->mInputProfiles[j]->mSupportedDevices.types() & 2511 device & ~AUDIO_DEVICE_BIT_IN) { 2512 return mHwModules[i]; 2513 } 2514 } 2515 } 2516 } 2517 return module; 2518 } 2519 2520 sp <AudioPolicyManager::HwModule> AudioPolicyManager::getModuleFromName(const char *name) const 2521 { 2522 sp <HwModule> module; 2523 2524 for (size_t i = 0; i < mHwModules.size(); i++) 2525 { 2526 if (strcmp(mHwModules[i]->mName, name) == 0) { 2527 return mHwModules[i]; 2528 } 2529 } 2530 return module; 2531 } 2532 2533 audio_devices_t AudioPolicyManager::availablePrimaryOutputDevices() 2534 { 2535 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 2536 audio_devices_t devices = outputDesc->mProfile->mSupportedDevices.types(); 2537 return devices & mAvailableOutputDevices.types(); 2538 } 2539 2540 audio_devices_t AudioPolicyManager::availablePrimaryInputDevices() 2541 { 2542 audio_module_handle_t primaryHandle = 2543 mOutputs.valueFor(mPrimaryOutput)->mProfile->mModule->mHandle; 2544 audio_devices_t devices = AUDIO_DEVICE_NONE; 2545 for (size_t i = 0; i < mAvailableInputDevices.size(); i++) { 2546 if (mAvailableInputDevices[i]->mModule->mHandle == primaryHandle) { 2547 devices |= mAvailableInputDevices[i]->mDeviceType; 2548 } 2549 } 2550 return devices; 2551 } 2552 2553 status_t AudioPolicyManager::createAudioPatch(const struct audio_patch *patch, 2554 audio_patch_handle_t *handle, 2555 uid_t uid) 2556 { 2557 ALOGV("createAudioPatch()"); 2558 2559 if (handle == NULL || patch == NULL) { 2560 return BAD_VALUE; 2561 } 2562 ALOGV("createAudioPatch() num sources %d num sinks %d", patch->num_sources, patch->num_sinks); 2563 2564 if (patch->num_sources == 0 || patch->num_sources > AUDIO_PATCH_PORTS_MAX || 2565 patch->num_sinks == 0 || patch->num_sinks > AUDIO_PATCH_PORTS_MAX) { 2566 return BAD_VALUE; 2567 } 2568 // only one source per audio patch supported for now 2569 if (patch->num_sources > 1) { 2570 return INVALID_OPERATION; 2571 } 2572 2573 if (patch->sources[0].role != AUDIO_PORT_ROLE_SOURCE) { 2574 return INVALID_OPERATION; 2575 } 2576 for (size_t i = 0; i < patch->num_sinks; i++) { 2577 if (patch->sinks[i].role != AUDIO_PORT_ROLE_SINK) { 2578 return INVALID_OPERATION; 2579 } 2580 } 2581 2582 sp<AudioPatch> patchDesc; 2583 ssize_t index = mAudioPatches.indexOfKey(*handle); 2584 2585 ALOGV("createAudioPatch source id %d role %d type %d", patch->sources[0].id, 2586 patch->sources[0].role, 2587 patch->sources[0].type); 2588 #if LOG_NDEBUG == 0 2589 for (size_t i = 0; i < patch->num_sinks; i++) { 2590 ALOGV("createAudioPatch sink %d: id %d role %d type %d", i, patch->sinks[i].id, 2591 patch->sinks[i].role, 2592 patch->sinks[i].type); 2593 } 2594 #endif 2595 2596 if (index >= 0) { 2597 patchDesc = mAudioPatches.valueAt(index); 2598 ALOGV("createAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 2599 mUidCached, patchDesc->mUid, uid); 2600 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 2601 return INVALID_OPERATION; 2602 } 2603 } else { 2604 *handle = 0; 2605 } 2606 2607 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 2608 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(patch->sources[0].id); 2609 if (outputDesc == NULL) { 2610 ALOGV("createAudioPatch() output not found for id %d", patch->sources[0].id); 2611 return BAD_VALUE; 2612 } 2613 ALOG_ASSERT(!outputDesc->isDuplicated(),"duplicated output %d in source in ports", 2614 outputDesc->mIoHandle); 2615 if (patchDesc != 0) { 2616 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 2617 ALOGV("createAudioPatch() source id differs for patch current id %d new id %d", 2618 patchDesc->mPatch.sources[0].id, patch->sources[0].id); 2619 return BAD_VALUE; 2620 } 2621 } 2622 DeviceVector devices; 2623 for (size_t i = 0; i < patch->num_sinks; i++) { 2624 // Only support mix to devices connection 2625 // TODO add support for mix to mix connection 2626 if (patch->sinks[i].type != AUDIO_PORT_TYPE_DEVICE) { 2627 ALOGV("createAudioPatch() source mix but sink is not a device"); 2628 return INVALID_OPERATION; 2629 } 2630 sp<DeviceDescriptor> devDesc = 2631 mAvailableOutputDevices.getDeviceFromId(patch->sinks[i].id); 2632 if (devDesc == 0) { 2633 ALOGV("createAudioPatch() out device not found for id %d", patch->sinks[i].id); 2634 return BAD_VALUE; 2635 } 2636 2637 if (!outputDesc->mProfile->isCompatibleProfile(devDesc->mDeviceType, 2638 devDesc->mAddress, 2639 patch->sources[0].sample_rate, 2640 NULL, // updatedSamplingRate 2641 patch->sources[0].format, 2642 patch->sources[0].channel_mask, 2643 AUDIO_OUTPUT_FLAG_NONE /*FIXME*/)) { 2644 ALOGV("createAudioPatch() profile not supported for device %08x", 2645 devDesc->mDeviceType); 2646 return INVALID_OPERATION; 2647 } 2648 devices.add(devDesc); 2649 } 2650 if (devices.size() == 0) { 2651 return INVALID_OPERATION; 2652 } 2653 2654 // TODO: reconfigure output format and channels here 2655 ALOGV("createAudioPatch() setting device %08x on output %d", 2656 devices.types(), outputDesc->mIoHandle); 2657 setOutputDevice(outputDesc->mIoHandle, devices.types(), true, 0, handle); 2658 index = mAudioPatches.indexOfKey(*handle); 2659 if (index >= 0) { 2660 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 2661 ALOGW("createAudioPatch() setOutputDevice() did not reuse the patch provided"); 2662 } 2663 patchDesc = mAudioPatches.valueAt(index); 2664 patchDesc->mUid = uid; 2665 ALOGV("createAudioPatch() success"); 2666 } else { 2667 ALOGW("createAudioPatch() setOutputDevice() failed to create a patch"); 2668 return INVALID_OPERATION; 2669 } 2670 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 2671 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 2672 // input device to input mix connection 2673 // only one sink supported when connecting an input device to a mix 2674 if (patch->num_sinks > 1) { 2675 return INVALID_OPERATION; 2676 } 2677 sp<AudioInputDescriptor> inputDesc = getInputFromId(patch->sinks[0].id); 2678 if (inputDesc == NULL) { 2679 return BAD_VALUE; 2680 } 2681 if (patchDesc != 0) { 2682 if (patchDesc->mPatch.sinks[0].id != patch->sinks[0].id) { 2683 return BAD_VALUE; 2684 } 2685 } 2686 sp<DeviceDescriptor> devDesc = 2687 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 2688 if (devDesc == 0) { 2689 return BAD_VALUE; 2690 } 2691 2692 if (!inputDesc->mProfile->isCompatibleProfile(devDesc->mDeviceType, 2693 devDesc->mAddress, 2694 patch->sinks[0].sample_rate, 2695 NULL, /*updatedSampleRate*/ 2696 patch->sinks[0].format, 2697 patch->sinks[0].channel_mask, 2698 // FIXME for the parameter type, 2699 // and the NONE 2700 (audio_output_flags_t) 2701 AUDIO_INPUT_FLAG_NONE)) { 2702 return INVALID_OPERATION; 2703 } 2704 // TODO: reconfigure output format and channels here 2705 ALOGV("createAudioPatch() setting device %08x on output %d", 2706 devDesc->mDeviceType, inputDesc->mIoHandle); 2707 setInputDevice(inputDesc->mIoHandle, devDesc->mDeviceType, true, handle); 2708 index = mAudioPatches.indexOfKey(*handle); 2709 if (index >= 0) { 2710 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 2711 ALOGW("createAudioPatch() setInputDevice() did not reuse the patch provided"); 2712 } 2713 patchDesc = mAudioPatches.valueAt(index); 2714 patchDesc->mUid = uid; 2715 ALOGV("createAudioPatch() success"); 2716 } else { 2717 ALOGW("createAudioPatch() setInputDevice() failed to create a patch"); 2718 return INVALID_OPERATION; 2719 } 2720 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2721 // device to device connection 2722 if (patchDesc != 0) { 2723 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 2724 return BAD_VALUE; 2725 } 2726 } 2727 sp<DeviceDescriptor> srcDeviceDesc = 2728 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 2729 if (srcDeviceDesc == 0) { 2730 return BAD_VALUE; 2731 } 2732 2733 //update source and sink with our own data as the data passed in the patch may 2734 // be incomplete. 2735 struct audio_patch newPatch = *patch; 2736 srcDeviceDesc->toAudioPortConfig(&newPatch.sources[0], &patch->sources[0]); 2737 2738 for (size_t i = 0; i < patch->num_sinks; i++) { 2739 if (patch->sinks[i].type != AUDIO_PORT_TYPE_DEVICE) { 2740 ALOGV("createAudioPatch() source device but one sink is not a device"); 2741 return INVALID_OPERATION; 2742 } 2743 2744 sp<DeviceDescriptor> sinkDeviceDesc = 2745 mAvailableOutputDevices.getDeviceFromId(patch->sinks[i].id); 2746 if (sinkDeviceDesc == 0) { 2747 return BAD_VALUE; 2748 } 2749 sinkDeviceDesc->toAudioPortConfig(&newPatch.sinks[i], &patch->sinks[i]); 2750 2751 if (srcDeviceDesc->mModule != sinkDeviceDesc->mModule) { 2752 // only one sink supported when connected devices across HW modules 2753 if (patch->num_sinks > 1) { 2754 return INVALID_OPERATION; 2755 } 2756 SortedVector<audio_io_handle_t> outputs = 2757 getOutputsForDevice(sinkDeviceDesc->mDeviceType, 2758 mOutputs); 2759 // if the sink device is reachable via an opened output stream, request to go via 2760 // this output stream by adding a second source to the patch description 2761 audio_io_handle_t output = selectOutput(outputs, 2762 AUDIO_OUTPUT_FLAG_NONE, 2763 AUDIO_FORMAT_INVALID); 2764 if (output != AUDIO_IO_HANDLE_NONE) { 2765 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 2766 if (outputDesc->isDuplicated()) { 2767 return INVALID_OPERATION; 2768 } 2769 outputDesc->toAudioPortConfig(&newPatch.sources[1], &patch->sources[0]); 2770 newPatch.num_sources = 2; 2771 } 2772 } 2773 } 2774 // TODO: check from routing capabilities in config file and other conflicting patches 2775 2776 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 2777 if (index >= 0) { 2778 afPatchHandle = patchDesc->mAfPatchHandle; 2779 } 2780 2781 status_t status = mpClientInterface->createAudioPatch(&newPatch, 2782 &afPatchHandle, 2783 0); 2784 ALOGV("createAudioPatch() patch panel returned %d patchHandle %d", 2785 status, afPatchHandle); 2786 if (status == NO_ERROR) { 2787 if (index < 0) { 2788 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 2789 &newPatch, uid); 2790 addAudioPatch(patchDesc->mHandle, patchDesc); 2791 } else { 2792 patchDesc->mPatch = newPatch; 2793 } 2794 patchDesc->mAfPatchHandle = afPatchHandle; 2795 *handle = patchDesc->mHandle; 2796 nextAudioPortGeneration(); 2797 mpClientInterface->onAudioPatchListUpdate(); 2798 } else { 2799 ALOGW("createAudioPatch() patch panel could not connect device patch, error %d", 2800 status); 2801 return INVALID_OPERATION; 2802 } 2803 } else { 2804 return BAD_VALUE; 2805 } 2806 } else { 2807 return BAD_VALUE; 2808 } 2809 return NO_ERROR; 2810 } 2811 2812 status_t AudioPolicyManager::releaseAudioPatch(audio_patch_handle_t handle, 2813 uid_t uid) 2814 { 2815 ALOGV("releaseAudioPatch() patch %d", handle); 2816 2817 ssize_t index = mAudioPatches.indexOfKey(handle); 2818 2819 if (index < 0) { 2820 return BAD_VALUE; 2821 } 2822 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 2823 ALOGV("releaseAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 2824 mUidCached, patchDesc->mUid, uid); 2825 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 2826 return INVALID_OPERATION; 2827 } 2828 2829 struct audio_patch *patch = &patchDesc->mPatch; 2830 patchDesc->mUid = mUidCached; 2831 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 2832 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(patch->sources[0].id); 2833 if (outputDesc == NULL) { 2834 ALOGV("releaseAudioPatch() output not found for id %d", patch->sources[0].id); 2835 return BAD_VALUE; 2836 } 2837 2838 setOutputDevice(outputDesc->mIoHandle, 2839 getNewOutputDevice(outputDesc->mIoHandle, true /*fromCache*/), 2840 true, 2841 0, 2842 NULL); 2843 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 2844 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 2845 sp<AudioInputDescriptor> inputDesc = getInputFromId(patch->sinks[0].id); 2846 if (inputDesc == NULL) { 2847 ALOGV("releaseAudioPatch() input not found for id %d", patch->sinks[0].id); 2848 return BAD_VALUE; 2849 } 2850 setInputDevice(inputDesc->mIoHandle, 2851 getNewInputDevice(inputDesc->mIoHandle), 2852 true, 2853 NULL); 2854 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2855 audio_patch_handle_t afPatchHandle = patchDesc->mAfPatchHandle; 2856 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 2857 ALOGV("releaseAudioPatch() patch panel returned %d patchHandle %d", 2858 status, patchDesc->mAfPatchHandle); 2859 removeAudioPatch(patchDesc->mHandle); 2860 nextAudioPortGeneration(); 2861 mpClientInterface->onAudioPatchListUpdate(); 2862 } else { 2863 return BAD_VALUE; 2864 } 2865 } else { 2866 return BAD_VALUE; 2867 } 2868 return NO_ERROR; 2869 } 2870 2871 status_t AudioPolicyManager::listAudioPatches(unsigned int *num_patches, 2872 struct audio_patch *patches, 2873 unsigned int *generation) 2874 { 2875 if (num_patches == NULL || (*num_patches != 0 && patches == NULL) || 2876 generation == NULL) { 2877 return BAD_VALUE; 2878 } 2879 ALOGV("listAudioPatches() num_patches %d patches %p available patches %zu", 2880 *num_patches, patches, mAudioPatches.size()); 2881 if (patches == NULL) { 2882 *num_patches = 0; 2883 } 2884 2885 size_t patchesWritten = 0; 2886 size_t patchesMax = *num_patches; 2887 for (size_t i = 0; 2888 i < mAudioPatches.size() && patchesWritten < patchesMax; i++) { 2889 patches[patchesWritten] = mAudioPatches[i]->mPatch; 2890 patches[patchesWritten++].id = mAudioPatches[i]->mHandle; 2891 ALOGV("listAudioPatches() patch %zu num_sources %d num_sinks %d", 2892 i, mAudioPatches[i]->mPatch.num_sources, mAudioPatches[i]->mPatch.num_sinks); 2893 } 2894 *num_patches = mAudioPatches.size(); 2895 2896 *generation = curAudioPortGeneration(); 2897 ALOGV("listAudioPatches() got %zu patches needed %d", patchesWritten, *num_patches); 2898 return NO_ERROR; 2899 } 2900 2901 status_t AudioPolicyManager::setAudioPortConfig(const struct audio_port_config *config) 2902 { 2903 ALOGV("setAudioPortConfig()"); 2904 2905 if (config == NULL) { 2906 return BAD_VALUE; 2907 } 2908 ALOGV("setAudioPortConfig() on port handle %d", config->id); 2909 // Only support gain configuration for now 2910 if (config->config_mask != AUDIO_PORT_CONFIG_GAIN) { 2911 return INVALID_OPERATION; 2912 } 2913 2914 sp<AudioPortConfig> audioPortConfig; 2915 if (config->type == AUDIO_PORT_TYPE_MIX) { 2916 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2917 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(config->id); 2918 if (outputDesc == NULL) { 2919 return BAD_VALUE; 2920 } 2921 ALOG_ASSERT(!outputDesc->isDuplicated(), 2922 "setAudioPortConfig() called on duplicated output %d", 2923 outputDesc->mIoHandle); 2924 audioPortConfig = outputDesc; 2925 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2926 sp<AudioInputDescriptor> inputDesc = getInputFromId(config->id); 2927 if (inputDesc == NULL) { 2928 return BAD_VALUE; 2929 } 2930 audioPortConfig = inputDesc; 2931 } else { 2932 return BAD_VALUE; 2933 } 2934 } else if (config->type == AUDIO_PORT_TYPE_DEVICE) { 2935 sp<DeviceDescriptor> deviceDesc; 2936 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2937 deviceDesc = mAvailableInputDevices.getDeviceFromId(config->id); 2938 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2939 deviceDesc = mAvailableOutputDevices.getDeviceFromId(config->id); 2940 } else { 2941 return BAD_VALUE; 2942 } 2943 if (deviceDesc == NULL) { 2944 return BAD_VALUE; 2945 } 2946 audioPortConfig = deviceDesc; 2947 } else { 2948 return BAD_VALUE; 2949 } 2950 2951 struct audio_port_config backupConfig; 2952 status_t status = audioPortConfig->applyAudioPortConfig(config, &backupConfig); 2953 if (status == NO_ERROR) { 2954 struct audio_port_config newConfig; 2955 audioPortConfig->toAudioPortConfig(&newConfig, config); 2956 status = mpClientInterface->setAudioPortConfig(&newConfig, 0); 2957 } 2958 if (status != NO_ERROR) { 2959 audioPortConfig->applyAudioPortConfig(&backupConfig); 2960 } 2961 2962 return status; 2963 } 2964 2965 void AudioPolicyManager::clearAudioPatches(uid_t uid) 2966 { 2967 for (ssize_t i = (ssize_t)mAudioPatches.size() - 1; i >= 0; i--) { 2968 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(i); 2969 if (patchDesc->mUid == uid) { 2970 releaseAudioPatch(mAudioPatches.keyAt(i), uid); 2971 } 2972 } 2973 } 2974 2975 status_t AudioPolicyManager::acquireSoundTriggerSession(audio_session_t *session, 2976 audio_io_handle_t *ioHandle, 2977 audio_devices_t *device) 2978 { 2979 *session = (audio_session_t)mpClientInterface->newAudioUniqueId(); 2980 *ioHandle = (audio_io_handle_t)mpClientInterface->newAudioUniqueId(); 2981 *device = getDeviceAndMixForInputSource(AUDIO_SOURCE_HOTWORD); 2982 2983 mSoundTriggerSessions.add(*session, *ioHandle); 2984 2985 return NO_ERROR; 2986 } 2987 2988 status_t AudioPolicyManager::releaseSoundTriggerSession(audio_session_t session) 2989 { 2990 ssize_t index = mSoundTriggerSessions.indexOfKey(session); 2991 if (index < 0) { 2992 ALOGW("acquireSoundTriggerSession() session %d not registered", session); 2993 return BAD_VALUE; 2994 } 2995 2996 mSoundTriggerSessions.removeItem(session); 2997 return NO_ERROR; 2998 } 2999 3000 status_t AudioPolicyManager::addAudioPatch(audio_patch_handle_t handle, 3001 const sp<AudioPatch>& patch) 3002 { 3003 ssize_t index = mAudioPatches.indexOfKey(handle); 3004 3005 if (index >= 0) { 3006 ALOGW("addAudioPatch() patch %d already in", handle); 3007 return ALREADY_EXISTS; 3008 } 3009 mAudioPatches.add(handle, patch); 3010 ALOGV("addAudioPatch() handle %d af handle %d num_sources %d num_sinks %d source handle %d" 3011 "sink handle %d", 3012 handle, patch->mAfPatchHandle, patch->mPatch.num_sources, patch->mPatch.num_sinks, 3013 patch->mPatch.sources[0].id, patch->mPatch.sinks[0].id); 3014 return NO_ERROR; 3015 } 3016 3017 status_t AudioPolicyManager::removeAudioPatch(audio_patch_handle_t handle) 3018 { 3019 ssize_t index = mAudioPatches.indexOfKey(handle); 3020 3021 if (index < 0) { 3022 ALOGW("removeAudioPatch() patch %d not in", handle); 3023 return ALREADY_EXISTS; 3024 } 3025 ALOGV("removeAudioPatch() handle %d af handle %d", handle, 3026 mAudioPatches.valueAt(index)->mAfPatchHandle); 3027 mAudioPatches.removeItemsAt(index); 3028 return NO_ERROR; 3029 } 3030 3031 // ---------------------------------------------------------------------------- 3032 // AudioPolicyManager 3033 // ---------------------------------------------------------------------------- 3034 3035 uint32_t AudioPolicyManager::nextUniqueId() 3036 { 3037 return android_atomic_inc(&mNextUniqueId); 3038 } 3039 3040 uint32_t AudioPolicyManager::nextAudioPortGeneration() 3041 { 3042 return android_atomic_inc(&mAudioPortGeneration); 3043 } 3044 3045 AudioPolicyManager::AudioPolicyManager(AudioPolicyClientInterface *clientInterface) 3046 : 3047 #ifdef AUDIO_POLICY_TEST 3048 Thread(false), 3049 #endif //AUDIO_POLICY_TEST 3050 mPrimaryOutput((audio_io_handle_t)0), 3051 mPhoneState(AUDIO_MODE_NORMAL), 3052 mLimitRingtoneVolume(false), mLastVoiceVolume(-1.0f), 3053 mTotalEffectsCpuLoad(0), mTotalEffectsMemory(0), 3054 mA2dpSuspended(false), 3055 mSpeakerDrcEnabled(false), mNextUniqueId(1), 3056 mAudioPortGeneration(1), 3057 mBeaconMuteRefCount(0), 3058 mBeaconPlayingRefCount(0), 3059 mBeaconMuted(false) 3060 { 3061 mUidCached = getuid(); 3062 mpClientInterface = clientInterface; 3063 3064 for (int i = 0; i < AUDIO_POLICY_FORCE_USE_CNT; i++) { 3065 mForceUse[i] = AUDIO_POLICY_FORCE_NONE; 3066 } 3067 3068 mDefaultOutputDevice = new DeviceDescriptor(String8(""), AUDIO_DEVICE_OUT_SPEAKER); 3069 if (loadAudioPolicyConfig(AUDIO_POLICY_VENDOR_CONFIG_FILE) != NO_ERROR) { 3070 if (loadAudioPolicyConfig(AUDIO_POLICY_CONFIG_FILE) != NO_ERROR) { 3071 ALOGE("could not load audio policy configuration file, setting defaults"); 3072 defaultAudioPolicyConfig(); 3073 } 3074 } 3075 // mAvailableOutputDevices and mAvailableInputDevices now contain all attached devices 3076 3077 // must be done after reading the policy 3078 initializeVolumeCurves(); 3079 3080 // open all output streams needed to access attached devices 3081 audio_devices_t outputDeviceTypes = mAvailableOutputDevices.types(); 3082 audio_devices_t inputDeviceTypes = mAvailableInputDevices.types() & ~AUDIO_DEVICE_BIT_IN; 3083 for (size_t i = 0; i < mHwModules.size(); i++) { 3084 mHwModules[i]->mHandle = mpClientInterface->loadHwModule(mHwModules[i]->mName); 3085 if (mHwModules[i]->mHandle == 0) { 3086 ALOGW("could not open HW module %s", mHwModules[i]->mName); 3087 continue; 3088 } 3089 // open all output streams needed to access attached devices 3090 // except for direct output streams that are only opened when they are actually 3091 // required by an app. 3092 // This also validates mAvailableOutputDevices list 3093 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3094 { 3095 const sp<IOProfile> outProfile = mHwModules[i]->mOutputProfiles[j]; 3096 3097 if (outProfile->mSupportedDevices.isEmpty()) { 3098 ALOGW("Output profile contains no device on module %s", mHwModules[i]->mName); 3099 continue; 3100 } 3101 3102 if ((outProfile->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) { 3103 continue; 3104 } 3105 audio_devices_t profileType = outProfile->mSupportedDevices.types(); 3106 if ((profileType & mDefaultOutputDevice->mDeviceType) != AUDIO_DEVICE_NONE) { 3107 profileType = mDefaultOutputDevice->mDeviceType; 3108 } else { 3109 // chose first device present in mSupportedDevices also part of 3110 // outputDeviceTypes 3111 for (size_t k = 0; k < outProfile->mSupportedDevices.size(); k++) { 3112 profileType = outProfile->mSupportedDevices[k]->mDeviceType; 3113 if ((profileType & outputDeviceTypes) != 0) { 3114 break; 3115 } 3116 } 3117 } 3118 if ((profileType & outputDeviceTypes) == 0) { 3119 continue; 3120 } 3121 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(outProfile); 3122 3123 outputDesc->mDevice = profileType; 3124 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3125 config.sample_rate = outputDesc->mSamplingRate; 3126 config.channel_mask = outputDesc->mChannelMask; 3127 config.format = outputDesc->mFormat; 3128 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 3129 status_t status = mpClientInterface->openOutput(outProfile->mModule->mHandle, 3130 &output, 3131 &config, 3132 &outputDesc->mDevice, 3133 String8(""), 3134 &outputDesc->mLatency, 3135 outputDesc->mFlags); 3136 3137 if (status != NO_ERROR) { 3138 ALOGW("Cannot open output stream for device %08x on hw module %s", 3139 outputDesc->mDevice, 3140 mHwModules[i]->mName); 3141 } else { 3142 outputDesc->mSamplingRate = config.sample_rate; 3143 outputDesc->mChannelMask = config.channel_mask; 3144 outputDesc->mFormat = config.format; 3145 3146 for (size_t k = 0; k < outProfile->mSupportedDevices.size(); k++) { 3147 audio_devices_t type = outProfile->mSupportedDevices[k]->mDeviceType; 3148 ssize_t index = 3149 mAvailableOutputDevices.indexOf(outProfile->mSupportedDevices[k]); 3150 // give a valid ID to an attached device once confirmed it is reachable 3151 if ((index >= 0) && (mAvailableOutputDevices[index]->mId == 0)) { 3152 mAvailableOutputDevices[index]->mId = nextUniqueId(); 3153 mAvailableOutputDevices[index]->mModule = mHwModules[i]; 3154 } 3155 } 3156 if (mPrimaryOutput == 0 && 3157 outProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 3158 mPrimaryOutput = output; 3159 } 3160 addOutput(output, outputDesc); 3161 setOutputDevice(output, 3162 outputDesc->mDevice, 3163 true); 3164 } 3165 } 3166 // open input streams needed to access attached devices to validate 3167 // mAvailableInputDevices list 3168 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 3169 { 3170 const sp<IOProfile> inProfile = mHwModules[i]->mInputProfiles[j]; 3171 3172 if (inProfile->mSupportedDevices.isEmpty()) { 3173 ALOGW("Input profile contains no device on module %s", mHwModules[i]->mName); 3174 continue; 3175 } 3176 // chose first device present in mSupportedDevices also part of 3177 // inputDeviceTypes 3178 audio_devices_t profileType = AUDIO_DEVICE_NONE; 3179 for (size_t k = 0; k < inProfile->mSupportedDevices.size(); k++) { 3180 profileType = inProfile->mSupportedDevices[k]->mDeviceType; 3181 if (profileType & inputDeviceTypes) { 3182 break; 3183 } 3184 } 3185 if ((profileType & inputDeviceTypes) == 0) { 3186 continue; 3187 } 3188 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(inProfile); 3189 3190 inputDesc->mInputSource = AUDIO_SOURCE_MIC; 3191 inputDesc->mDevice = profileType; 3192 3193 // find the address 3194 DeviceVector inputDevices = mAvailableInputDevices.getDevicesFromType(profileType); 3195 // the inputs vector must be of size 1, but we don't want to crash here 3196 String8 address = inputDevices.size() > 0 ? inputDevices.itemAt(0)->mAddress 3197 : String8(""); 3198 ALOGV(" for input device 0x%x using address %s", profileType, address.string()); 3199 ALOGE_IF(inputDevices.size() == 0, "Input device list is empty!"); 3200 3201 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3202 config.sample_rate = inputDesc->mSamplingRate; 3203 config.channel_mask = inputDesc->mChannelMask; 3204 config.format = inputDesc->mFormat; 3205 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 3206 status_t status = mpClientInterface->openInput(inProfile->mModule->mHandle, 3207 &input, 3208 &config, 3209 &inputDesc->mDevice, 3210 address, 3211 AUDIO_SOURCE_MIC, 3212 AUDIO_INPUT_FLAG_NONE); 3213 3214 if (status == NO_ERROR) { 3215 for (size_t k = 0; k < inProfile->mSupportedDevices.size(); k++) { 3216 audio_devices_t type = inProfile->mSupportedDevices[k]->mDeviceType; 3217 ssize_t index = 3218 mAvailableInputDevices.indexOf(inProfile->mSupportedDevices[k]); 3219 // give a valid ID to an attached device once confirmed it is reachable 3220 if ((index >= 0) && (mAvailableInputDevices[index]->mId == 0)) { 3221 mAvailableInputDevices[index]->mId = nextUniqueId(); 3222 mAvailableInputDevices[index]->mModule = mHwModules[i]; 3223 } 3224 } 3225 mpClientInterface->closeInput(input); 3226 } else { 3227 ALOGW("Cannot open input stream for device %08x on hw module %s", 3228 inputDesc->mDevice, 3229 mHwModules[i]->mName); 3230 } 3231 } 3232 } 3233 // make sure all attached devices have been allocated a unique ID 3234 for (size_t i = 0; i < mAvailableOutputDevices.size();) { 3235 if (mAvailableOutputDevices[i]->mId == 0) { 3236 ALOGW("Input device %08x unreachable", mAvailableOutputDevices[i]->mDeviceType); 3237 mAvailableOutputDevices.remove(mAvailableOutputDevices[i]); 3238 continue; 3239 } 3240 i++; 3241 } 3242 for (size_t i = 0; i < mAvailableInputDevices.size();) { 3243 if (mAvailableInputDevices[i]->mId == 0) { 3244 ALOGW("Input device %08x unreachable", mAvailableInputDevices[i]->mDeviceType); 3245 mAvailableInputDevices.remove(mAvailableInputDevices[i]); 3246 continue; 3247 } 3248 i++; 3249 } 3250 // make sure default device is reachable 3251 if (mAvailableOutputDevices.indexOf(mDefaultOutputDevice) < 0) { 3252 ALOGE("Default device %08x is unreachable", mDefaultOutputDevice->mDeviceType); 3253 } 3254 3255 ALOGE_IF((mPrimaryOutput == 0), "Failed to open primary output"); 3256 3257 updateDevicesAndOutputs(); 3258 3259 #ifdef AUDIO_POLICY_TEST 3260 if (mPrimaryOutput != 0) { 3261 AudioParameter outputCmd = AudioParameter(); 3262 outputCmd.addInt(String8("set_id"), 0); 3263 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 3264 3265 mTestDevice = AUDIO_DEVICE_OUT_SPEAKER; 3266 mTestSamplingRate = 44100; 3267 mTestFormat = AUDIO_FORMAT_PCM_16_BIT; 3268 mTestChannels = AUDIO_CHANNEL_OUT_STEREO; 3269 mTestLatencyMs = 0; 3270 mCurOutput = 0; 3271 mDirectOutput = false; 3272 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 3273 mTestOutputs[i] = 0; 3274 } 3275 3276 const size_t SIZE = 256; 3277 char buffer[SIZE]; 3278 snprintf(buffer, SIZE, "AudioPolicyManagerTest"); 3279 run(buffer, ANDROID_PRIORITY_AUDIO); 3280 } 3281 #endif //AUDIO_POLICY_TEST 3282 } 3283 3284 AudioPolicyManager::~AudioPolicyManager() 3285 { 3286 #ifdef AUDIO_POLICY_TEST 3287 exit(); 3288 #endif //AUDIO_POLICY_TEST 3289 for (size_t i = 0; i < mOutputs.size(); i++) { 3290 mpClientInterface->closeOutput(mOutputs.keyAt(i)); 3291 } 3292 for (size_t i = 0; i < mInputs.size(); i++) { 3293 mpClientInterface->closeInput(mInputs.keyAt(i)); 3294 } 3295 mAvailableOutputDevices.clear(); 3296 mAvailableInputDevices.clear(); 3297 mOutputs.clear(); 3298 mInputs.clear(); 3299 mHwModules.clear(); 3300 } 3301 3302 status_t AudioPolicyManager::initCheck() 3303 { 3304 return (mPrimaryOutput == 0) ? NO_INIT : NO_ERROR; 3305 } 3306 3307 #ifdef AUDIO_POLICY_TEST 3308 bool AudioPolicyManager::threadLoop() 3309 { 3310 ALOGV("entering threadLoop()"); 3311 while (!exitPending()) 3312 { 3313 String8 command; 3314 int valueInt; 3315 String8 value; 3316 3317 Mutex::Autolock _l(mLock); 3318 mWaitWorkCV.waitRelative(mLock, milliseconds(50)); 3319 3320 command = mpClientInterface->getParameters(0, String8("test_cmd_policy")); 3321 AudioParameter param = AudioParameter(command); 3322 3323 if (param.getInt(String8("test_cmd_policy"), valueInt) == NO_ERROR && 3324 valueInt != 0) { 3325 ALOGV("Test command %s received", command.string()); 3326 String8 target; 3327 if (param.get(String8("target"), target) != NO_ERROR) { 3328 target = "Manager"; 3329 } 3330 if (param.getInt(String8("test_cmd_policy_output"), valueInt) == NO_ERROR) { 3331 param.remove(String8("test_cmd_policy_output")); 3332 mCurOutput = valueInt; 3333 } 3334 if (param.get(String8("test_cmd_policy_direct"), value) == NO_ERROR) { 3335 param.remove(String8("test_cmd_policy_direct")); 3336 if (value == "false") { 3337 mDirectOutput = false; 3338 } else if (value == "true") { 3339 mDirectOutput = true; 3340 } 3341 } 3342 if (param.getInt(String8("test_cmd_policy_input"), valueInt) == NO_ERROR) { 3343 param.remove(String8("test_cmd_policy_input")); 3344 mTestInput = valueInt; 3345 } 3346 3347 if (param.get(String8("test_cmd_policy_format"), value) == NO_ERROR) { 3348 param.remove(String8("test_cmd_policy_format")); 3349 int format = AUDIO_FORMAT_INVALID; 3350 if (value == "PCM 16 bits") { 3351 format = AUDIO_FORMAT_PCM_16_BIT; 3352 } else if (value == "PCM 8 bits") { 3353 format = AUDIO_FORMAT_PCM_8_BIT; 3354 } else if (value == "Compressed MP3") { 3355 format = AUDIO_FORMAT_MP3; 3356 } 3357 if (format != AUDIO_FORMAT_INVALID) { 3358 if (target == "Manager") { 3359 mTestFormat = format; 3360 } else if (mTestOutputs[mCurOutput] != 0) { 3361 AudioParameter outputParam = AudioParameter(); 3362 outputParam.addInt(String8("format"), format); 3363 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 3364 } 3365 } 3366 } 3367 if (param.get(String8("test_cmd_policy_channels"), value) == NO_ERROR) { 3368 param.remove(String8("test_cmd_policy_channels")); 3369 int channels = 0; 3370 3371 if (value == "Channels Stereo") { 3372 channels = AUDIO_CHANNEL_OUT_STEREO; 3373 } else if (value == "Channels Mono") { 3374 channels = AUDIO_CHANNEL_OUT_MONO; 3375 } 3376 if (channels != 0) { 3377 if (target == "Manager") { 3378 mTestChannels = channels; 3379 } else if (mTestOutputs[mCurOutput] != 0) { 3380 AudioParameter outputParam = AudioParameter(); 3381 outputParam.addInt(String8("channels"), channels); 3382 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 3383 } 3384 } 3385 } 3386 if (param.getInt(String8("test_cmd_policy_sampleRate"), valueInt) == NO_ERROR) { 3387 param.remove(String8("test_cmd_policy_sampleRate")); 3388 if (valueInt >= 0 && valueInt <= 96000) { 3389 int samplingRate = valueInt; 3390 if (target == "Manager") { 3391 mTestSamplingRate = samplingRate; 3392 } else if (mTestOutputs[mCurOutput] != 0) { 3393 AudioParameter outputParam = AudioParameter(); 3394 outputParam.addInt(String8("sampling_rate"), samplingRate); 3395 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 3396 } 3397 } 3398 } 3399 3400 if (param.get(String8("test_cmd_policy_reopen"), value) == NO_ERROR) { 3401 param.remove(String8("test_cmd_policy_reopen")); 3402 3403 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 3404 mpClientInterface->closeOutput(mPrimaryOutput); 3405 3406 audio_module_handle_t moduleHandle = outputDesc->mModule->mHandle; 3407 3408 mOutputs.removeItem(mPrimaryOutput); 3409 3410 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(NULL); 3411 outputDesc->mDevice = AUDIO_DEVICE_OUT_SPEAKER; 3412 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3413 config.sample_rate = outputDesc->mSamplingRate; 3414 config.channel_mask = outputDesc->mChannelMask; 3415 config.format = outputDesc->mFormat; 3416 status_t status = mpClientInterface->openOutput(moduleHandle, 3417 &mPrimaryOutput, 3418 &config, 3419 &outputDesc->mDevice, 3420 String8(""), 3421 &outputDesc->mLatency, 3422 outputDesc->mFlags); 3423 if (status != NO_ERROR) { 3424 ALOGE("Failed to reopen hardware output stream, " 3425 "samplingRate: %d, format %d, channels %d", 3426 outputDesc->mSamplingRate, outputDesc->mFormat, outputDesc->mChannelMask); 3427 } else { 3428 outputDesc->mSamplingRate = config.sample_rate; 3429 outputDesc->mChannelMask = config.channel_mask; 3430 outputDesc->mFormat = config.format; 3431 AudioParameter outputCmd = AudioParameter(); 3432 outputCmd.addInt(String8("set_id"), 0); 3433 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 3434 addOutput(mPrimaryOutput, outputDesc); 3435 } 3436 } 3437 3438 3439 mpClientInterface->setParameters(0, String8("test_cmd_policy=")); 3440 } 3441 } 3442 return false; 3443 } 3444 3445 void AudioPolicyManager::exit() 3446 { 3447 { 3448 AutoMutex _l(mLock); 3449 requestExit(); 3450 mWaitWorkCV.signal(); 3451 } 3452 requestExitAndWait(); 3453 } 3454 3455 int AudioPolicyManager::testOutputIndex(audio_io_handle_t output) 3456 { 3457 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 3458 if (output == mTestOutputs[i]) return i; 3459 } 3460 return 0; 3461 } 3462 #endif //AUDIO_POLICY_TEST 3463 3464 // --- 3465 3466 void AudioPolicyManager::addOutput(audio_io_handle_t output, sp<AudioOutputDescriptor> outputDesc) 3467 { 3468 outputDesc->mIoHandle = output; 3469 outputDesc->mId = nextUniqueId(); 3470 mOutputs.add(output, outputDesc); 3471 nextAudioPortGeneration(); 3472 } 3473 3474 void AudioPolicyManager::addInput(audio_io_handle_t input, sp<AudioInputDescriptor> inputDesc) 3475 { 3476 inputDesc->mIoHandle = input; 3477 inputDesc->mId = nextUniqueId(); 3478 mInputs.add(input, inputDesc); 3479 nextAudioPortGeneration(); 3480 } 3481 3482 void AudioPolicyManager::findIoHandlesByAddress(sp<AudioOutputDescriptor> desc /*in*/, 3483 const audio_devices_t device /*in*/, 3484 const String8 address /*in*/, 3485 SortedVector<audio_io_handle_t>& outputs /*out*/) { 3486 sp<DeviceDescriptor> devDesc = 3487 desc->mProfile->mSupportedDevices.getDevice(device, address); 3488 if (devDesc != 0) { 3489 ALOGV("findIoHandlesByAddress(): adding opened output %d on same address %s", 3490 desc->mIoHandle, address.string()); 3491 outputs.add(desc->mIoHandle); 3492 } 3493 } 3494 3495 status_t AudioPolicyManager::checkOutputsForDevice(const sp<DeviceDescriptor> devDesc, 3496 audio_policy_dev_state_t state, 3497 SortedVector<audio_io_handle_t>& outputs, 3498 const String8 address) 3499 { 3500 audio_devices_t device = devDesc->mDeviceType; 3501 sp<AudioOutputDescriptor> desc; 3502 // erase all current sample rates, formats and channel masks 3503 devDesc->clearCapabilities(); 3504 3505 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 3506 // first list already open outputs that can be routed to this device 3507 for (size_t i = 0; i < mOutputs.size(); i++) { 3508 desc = mOutputs.valueAt(i); 3509 if (!desc->isDuplicated() && (desc->mProfile->mSupportedDevices.types() & device)) { 3510 if (!deviceDistinguishesOnAddress(device)) { 3511 ALOGV("checkOutputsForDevice(): adding opened output %d", mOutputs.keyAt(i)); 3512 outputs.add(mOutputs.keyAt(i)); 3513 } else { 3514 ALOGV(" checking address match due to device 0x%x", device); 3515 findIoHandlesByAddress(desc, device, address, outputs); 3516 } 3517 } 3518 } 3519 // then look for output profiles that can be routed to this device 3520 SortedVector< sp<IOProfile> > profiles; 3521 for (size_t i = 0; i < mHwModules.size(); i++) 3522 { 3523 if (mHwModules[i]->mHandle == 0) { 3524 continue; 3525 } 3526 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3527 { 3528 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 3529 if (profile->mSupportedDevices.types() & device) { 3530 if (!deviceDistinguishesOnAddress(device) || 3531 address == profile->mSupportedDevices[0]->mAddress) { 3532 profiles.add(profile); 3533 ALOGV("checkOutputsForDevice(): adding profile %zu from module %zu", j, i); 3534 } 3535 } 3536 } 3537 } 3538 3539 ALOGV(" found %d profiles, %d outputs", profiles.size(), outputs.size()); 3540 3541 if (profiles.isEmpty() && outputs.isEmpty()) { 3542 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 3543 return BAD_VALUE; 3544 } 3545 3546 // open outputs for matching profiles if needed. Direct outputs are also opened to 3547 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 3548 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 3549 sp<IOProfile> profile = profiles[profile_index]; 3550 3551 // nothing to do if one output is already opened for this profile 3552 size_t j; 3553 for (j = 0; j < outputs.size(); j++) { 3554 desc = mOutputs.valueFor(outputs.itemAt(j)); 3555 if (!desc->isDuplicated() && desc->mProfile == profile) { 3556 // matching profile: save the sample rates, format and channel masks supported 3557 // by the profile in our device descriptor 3558 devDesc->importAudioPort(profile); 3559 break; 3560 } 3561 } 3562 if (j != outputs.size()) { 3563 continue; 3564 } 3565 3566 ALOGV("opening output for device %08x with params %s profile %p", 3567 device, address.string(), profile.get()); 3568 desc = new AudioOutputDescriptor(profile); 3569 desc->mDevice = device; 3570 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3571 config.sample_rate = desc->mSamplingRate; 3572 config.channel_mask = desc->mChannelMask; 3573 config.format = desc->mFormat; 3574 config.offload_info.sample_rate = desc->mSamplingRate; 3575 config.offload_info.channel_mask = desc->mChannelMask; 3576 config.offload_info.format = desc->mFormat; 3577 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 3578 status_t status = mpClientInterface->openOutput(profile->mModule->mHandle, 3579 &output, 3580 &config, 3581 &desc->mDevice, 3582 address, 3583 &desc->mLatency, 3584 desc->mFlags); 3585 if (status == NO_ERROR) { 3586 desc->mSamplingRate = config.sample_rate; 3587 desc->mChannelMask = config.channel_mask; 3588 desc->mFormat = config.format; 3589 3590 // Here is where the out_set_parameters() for card & device gets called 3591 if (!address.isEmpty()) { 3592 char *param = audio_device_address_to_parameter(device, address); 3593 mpClientInterface->setParameters(output, String8(param)); 3594 free(param); 3595 } 3596 3597 // Here is where we step through and resolve any "dynamic" fields 3598 String8 reply; 3599 char *value; 3600 if (profile->mSamplingRates[0] == 0) { 3601 reply = mpClientInterface->getParameters(output, 3602 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 3603 ALOGV("checkOutputsForDevice() supported sampling rates %s", 3604 reply.string()); 3605 value = strpbrk((char *)reply.string(), "="); 3606 if (value != NULL) { 3607 profile->loadSamplingRates(value + 1); 3608 } 3609 } 3610 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3611 reply = mpClientInterface->getParameters(output, 3612 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 3613 ALOGV("checkOutputsForDevice() supported formats %s", 3614 reply.string()); 3615 value = strpbrk((char *)reply.string(), "="); 3616 if (value != NULL) { 3617 profile->loadFormats(value + 1); 3618 } 3619 } 3620 if (profile->mChannelMasks[0] == 0) { 3621 reply = mpClientInterface->getParameters(output, 3622 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 3623 ALOGV("checkOutputsForDevice() supported channel masks %s", 3624 reply.string()); 3625 value = strpbrk((char *)reply.string(), "="); 3626 if (value != NULL) { 3627 profile->loadOutChannels(value + 1); 3628 } 3629 } 3630 if (((profile->mSamplingRates[0] == 0) && 3631 (profile->mSamplingRates.size() < 2)) || 3632 ((profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) && 3633 (profile->mFormats.size() < 2)) || 3634 ((profile->mChannelMasks[0] == 0) && 3635 (profile->mChannelMasks.size() < 2))) { 3636 ALOGW("checkOutputsForDevice() missing param"); 3637 mpClientInterface->closeOutput(output); 3638 output = AUDIO_IO_HANDLE_NONE; 3639 } else if (profile->mSamplingRates[0] == 0 || profile->mFormats[0] == 0 || 3640 profile->mChannelMasks[0] == 0) { 3641 mpClientInterface->closeOutput(output); 3642 config.sample_rate = profile->pickSamplingRate(); 3643 config.channel_mask = profile->pickChannelMask(); 3644 config.format = profile->pickFormat(); 3645 config.offload_info.sample_rate = config.sample_rate; 3646 config.offload_info.channel_mask = config.channel_mask; 3647 config.offload_info.format = config.format; 3648 status = mpClientInterface->openOutput(profile->mModule->mHandle, 3649 &output, 3650 &config, 3651 &desc->mDevice, 3652 address, 3653 &desc->mLatency, 3654 desc->mFlags); 3655 if (status == NO_ERROR) { 3656 desc->mSamplingRate = config.sample_rate; 3657 desc->mChannelMask = config.channel_mask; 3658 desc->mFormat = config.format; 3659 } else { 3660 output = AUDIO_IO_HANDLE_NONE; 3661 } 3662 } 3663 3664 if (output != AUDIO_IO_HANDLE_NONE) { 3665 addOutput(output, desc); 3666 if (deviceDistinguishesOnAddress(device) && address != "0") { 3667 ssize_t index = mPolicyMixes.indexOfKey(address); 3668 if (index >= 0) { 3669 mPolicyMixes[index]->mOutput = desc; 3670 desc->mPolicyMix = &mPolicyMixes[index]->mMix; 3671 } else { 3672 ALOGE("checkOutputsForDevice() cannot find policy for address %s", 3673 address.string()); 3674 } 3675 } else if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) { 3676 // no duplicated output for direct outputs and 3677 // outputs used by dynamic policy mixes 3678 audio_io_handle_t duplicatedOutput = AUDIO_IO_HANDLE_NONE; 3679 3680 // set initial stream volume for device 3681 applyStreamVolumes(output, device, 0, true); 3682 3683 //TODO: configure audio effect output stage here 3684 3685 // open a duplicating output thread for the new output and the primary output 3686 duplicatedOutput = mpClientInterface->openDuplicateOutput(output, 3687 mPrimaryOutput); 3688 if (duplicatedOutput != AUDIO_IO_HANDLE_NONE) { 3689 // add duplicated output descriptor 3690 sp<AudioOutputDescriptor> dupOutputDesc = 3691 new AudioOutputDescriptor(NULL); 3692 dupOutputDesc->mOutput1 = mOutputs.valueFor(mPrimaryOutput); 3693 dupOutputDesc->mOutput2 = mOutputs.valueFor(output); 3694 dupOutputDesc->mSamplingRate = desc->mSamplingRate; 3695 dupOutputDesc->mFormat = desc->mFormat; 3696 dupOutputDesc->mChannelMask = desc->mChannelMask; 3697 dupOutputDesc->mLatency = desc->mLatency; 3698 addOutput(duplicatedOutput, dupOutputDesc); 3699 applyStreamVolumes(duplicatedOutput, device, 0, true); 3700 } else { 3701 ALOGW("checkOutputsForDevice() could not open dup output for %d and %d", 3702 mPrimaryOutput, output); 3703 mpClientInterface->closeOutput(output); 3704 mOutputs.removeItem(output); 3705 nextAudioPortGeneration(); 3706 output = AUDIO_IO_HANDLE_NONE; 3707 } 3708 } 3709 } 3710 } else { 3711 output = AUDIO_IO_HANDLE_NONE; 3712 } 3713 if (output == AUDIO_IO_HANDLE_NONE) { 3714 ALOGW("checkOutputsForDevice() could not open output for device %x", device); 3715 profiles.removeAt(profile_index); 3716 profile_index--; 3717 } else { 3718 outputs.add(output); 3719 devDesc->importAudioPort(profile); 3720 3721 if (deviceDistinguishesOnAddress(device)) { 3722 ALOGV("checkOutputsForDevice(): setOutputDevice(dev=0x%x, addr=%s)", 3723 device, address.string()); 3724 setOutputDevice(output, device, true/*force*/, 0/*delay*/, 3725 NULL/*patch handle*/, address.string()); 3726 } 3727 ALOGV("checkOutputsForDevice(): adding output %d", output); 3728 } 3729 } 3730 3731 if (profiles.isEmpty()) { 3732 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 3733 return BAD_VALUE; 3734 } 3735 } else { // Disconnect 3736 // check if one opened output is not needed any more after disconnecting one device 3737 for (size_t i = 0; i < mOutputs.size(); i++) { 3738 desc = mOutputs.valueAt(i); 3739 if (!desc->isDuplicated()) { 3740 // exact match on device 3741 if (deviceDistinguishesOnAddress(device) && 3742 (desc->mProfile->mSupportedDevices.types() == device)) { 3743 findIoHandlesByAddress(desc, device, address, outputs); 3744 } else if (!(desc->mProfile->mSupportedDevices.types() 3745 & mAvailableOutputDevices.types())) { 3746 ALOGV("checkOutputsForDevice(): disconnecting adding output %d", 3747 mOutputs.keyAt(i)); 3748 outputs.add(mOutputs.keyAt(i)); 3749 } 3750 } 3751 } 3752 // Clear any profiles associated with the disconnected device. 3753 for (size_t i = 0; i < mHwModules.size(); i++) 3754 { 3755 if (mHwModules[i]->mHandle == 0) { 3756 continue; 3757 } 3758 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3759 { 3760 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 3761 if (profile->mSupportedDevices.types() & device) { 3762 ALOGV("checkOutputsForDevice(): " 3763 "clearing direct output profile %zu on module %zu", j, i); 3764 if (profile->mSamplingRates[0] == 0) { 3765 profile->mSamplingRates.clear(); 3766 profile->mSamplingRates.add(0); 3767 } 3768 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3769 profile->mFormats.clear(); 3770 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 3771 } 3772 if (profile->mChannelMasks[0] == 0) { 3773 profile->mChannelMasks.clear(); 3774 profile->mChannelMasks.add(0); 3775 } 3776 } 3777 } 3778 } 3779 } 3780 return NO_ERROR; 3781 } 3782 3783 status_t AudioPolicyManager::checkInputsForDevice(audio_devices_t device, 3784 audio_policy_dev_state_t state, 3785 SortedVector<audio_io_handle_t>& inputs, 3786 const String8 address) 3787 { 3788 sp<AudioInputDescriptor> desc; 3789 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 3790 // first list already open inputs that can be routed to this device 3791 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 3792 desc = mInputs.valueAt(input_index); 3793 if (desc->mProfile->mSupportedDevices.types() & (device & ~AUDIO_DEVICE_BIT_IN)) { 3794 ALOGV("checkInputsForDevice(): adding opened input %d", mInputs.keyAt(input_index)); 3795 inputs.add(mInputs.keyAt(input_index)); 3796 } 3797 } 3798 3799 // then look for input profiles that can be routed to this device 3800 SortedVector< sp<IOProfile> > profiles; 3801 for (size_t module_idx = 0; module_idx < mHwModules.size(); module_idx++) 3802 { 3803 if (mHwModules[module_idx]->mHandle == 0) { 3804 continue; 3805 } 3806 for (size_t profile_index = 0; 3807 profile_index < mHwModules[module_idx]->mInputProfiles.size(); 3808 profile_index++) 3809 { 3810 sp<IOProfile> profile = mHwModules[module_idx]->mInputProfiles[profile_index]; 3811 3812 if (profile->mSupportedDevices.types() & (device & ~AUDIO_DEVICE_BIT_IN)) { 3813 if (!deviceDistinguishesOnAddress(device) || 3814 address == profile->mSupportedDevices[0]->mAddress) { 3815 profiles.add(profile); 3816 ALOGV("checkInputsForDevice(): adding profile %zu from module %zu", 3817 profile_index, module_idx); 3818 } 3819 } 3820 } 3821 } 3822 3823 if (profiles.isEmpty() && inputs.isEmpty()) { 3824 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 3825 return BAD_VALUE; 3826 } 3827 3828 // open inputs for matching profiles if needed. Direct inputs are also opened to 3829 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 3830 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 3831 3832 sp<IOProfile> profile = profiles[profile_index]; 3833 // nothing to do if one input is already opened for this profile 3834 size_t input_index; 3835 for (input_index = 0; input_index < mInputs.size(); input_index++) { 3836 desc = mInputs.valueAt(input_index); 3837 if (desc->mProfile == profile) { 3838 break; 3839 } 3840 } 3841 if (input_index != mInputs.size()) { 3842 continue; 3843 } 3844 3845 ALOGV("opening input for device 0x%X with params %s", device, address.string()); 3846 desc = new AudioInputDescriptor(profile); 3847 desc->mDevice = device; 3848 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3849 config.sample_rate = desc->mSamplingRate; 3850 config.channel_mask = desc->mChannelMask; 3851 config.format = desc->mFormat; 3852 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 3853 status_t status = mpClientInterface->openInput(profile->mModule->mHandle, 3854 &input, 3855 &config, 3856 &desc->mDevice, 3857 address, 3858 AUDIO_SOURCE_MIC, 3859 AUDIO_INPUT_FLAG_NONE /*FIXME*/); 3860 3861 if (status == NO_ERROR) { 3862 desc->mSamplingRate = config.sample_rate; 3863 desc->mChannelMask = config.channel_mask; 3864 desc->mFormat = config.format; 3865 3866 if (!address.isEmpty()) { 3867 char *param = audio_device_address_to_parameter(device, address); 3868 mpClientInterface->setParameters(input, String8(param)); 3869 free(param); 3870 } 3871 3872 // Here is where we step through and resolve any "dynamic" fields 3873 String8 reply; 3874 char *value; 3875 if (profile->mSamplingRates[0] == 0) { 3876 reply = mpClientInterface->getParameters(input, 3877 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 3878 ALOGV("checkInputsForDevice() direct input sup sampling rates %s", 3879 reply.string()); 3880 value = strpbrk((char *)reply.string(), "="); 3881 if (value != NULL) { 3882 profile->loadSamplingRates(value + 1); 3883 } 3884 } 3885 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3886 reply = mpClientInterface->getParameters(input, 3887 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 3888 ALOGV("checkInputsForDevice() direct input sup formats %s", reply.string()); 3889 value = strpbrk((char *)reply.string(), "="); 3890 if (value != NULL) { 3891 profile->loadFormats(value + 1); 3892 } 3893 } 3894 if (profile->mChannelMasks[0] == 0) { 3895 reply = mpClientInterface->getParameters(input, 3896 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 3897 ALOGV("checkInputsForDevice() direct input sup channel masks %s", 3898 reply.string()); 3899 value = strpbrk((char *)reply.string(), "="); 3900 if (value != NULL) { 3901 profile->loadInChannels(value + 1); 3902 } 3903 } 3904 if (((profile->mSamplingRates[0] == 0) && (profile->mSamplingRates.size() < 2)) || 3905 ((profile->mFormats[0] == 0) && (profile->mFormats.size() < 2)) || 3906 ((profile->mChannelMasks[0] == 0) && (profile->mChannelMasks.size() < 2))) { 3907 ALOGW("checkInputsForDevice() direct input missing param"); 3908 mpClientInterface->closeInput(input); 3909 input = AUDIO_IO_HANDLE_NONE; 3910 } 3911 3912 if (input != 0) { 3913 addInput(input, desc); 3914 } 3915 } // endif input != 0 3916 3917 if (input == AUDIO_IO_HANDLE_NONE) { 3918 ALOGW("checkInputsForDevice() could not open input for device 0x%X", device); 3919 profiles.removeAt(profile_index); 3920 profile_index--; 3921 } else { 3922 inputs.add(input); 3923 ALOGV("checkInputsForDevice(): adding input %d", input); 3924 } 3925 } // end scan profiles 3926 3927 if (profiles.isEmpty()) { 3928 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 3929 return BAD_VALUE; 3930 } 3931 } else { 3932 // Disconnect 3933 // check if one opened input is not needed any more after disconnecting one device 3934 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 3935 desc = mInputs.valueAt(input_index); 3936 if (!(desc->mProfile->mSupportedDevices.types() & mAvailableInputDevices.types() & 3937 ~AUDIO_DEVICE_BIT_IN)) { 3938 ALOGV("checkInputsForDevice(): disconnecting adding input %d", 3939 mInputs.keyAt(input_index)); 3940 inputs.add(mInputs.keyAt(input_index)); 3941 } 3942 } 3943 // Clear any profiles associated with the disconnected device. 3944 for (size_t module_index = 0; module_index < mHwModules.size(); module_index++) { 3945 if (mHwModules[module_index]->mHandle == 0) { 3946 continue; 3947 } 3948 for (size_t profile_index = 0; 3949 profile_index < mHwModules[module_index]->mInputProfiles.size(); 3950 profile_index++) { 3951 sp<IOProfile> profile = mHwModules[module_index]->mInputProfiles[profile_index]; 3952 if (profile->mSupportedDevices.types() & device & ~AUDIO_DEVICE_BIT_IN) { 3953 ALOGV("checkInputsForDevice(): clearing direct input profile %zu on module %zu", 3954 profile_index, module_index); 3955 if (profile->mSamplingRates[0] == 0) { 3956 profile->mSamplingRates.clear(); 3957 profile->mSamplingRates.add(0); 3958 } 3959 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3960 profile->mFormats.clear(); 3961 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 3962 } 3963 if (profile->mChannelMasks[0] == 0) { 3964 profile->mChannelMasks.clear(); 3965 profile->mChannelMasks.add(0); 3966 } 3967 } 3968 } 3969 } 3970 } // end disconnect 3971 3972 return NO_ERROR; 3973 } 3974 3975 3976 void AudioPolicyManager::closeOutput(audio_io_handle_t output) 3977 { 3978 ALOGV("closeOutput(%d)", output); 3979 3980 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 3981 if (outputDesc == NULL) { 3982 ALOGW("closeOutput() unknown output %d", output); 3983 return; 3984 } 3985 3986 for (size_t i = 0; i < mPolicyMixes.size(); i++) { 3987 if (mPolicyMixes[i]->mOutput == outputDesc) { 3988 mPolicyMixes[i]->mOutput.clear(); 3989 } 3990 } 3991 3992 // look for duplicated outputs connected to the output being removed. 3993 for (size_t i = 0; i < mOutputs.size(); i++) { 3994 sp<AudioOutputDescriptor> dupOutputDesc = mOutputs.valueAt(i); 3995 if (dupOutputDesc->isDuplicated() && 3996 (dupOutputDesc->mOutput1 == outputDesc || 3997 dupOutputDesc->mOutput2 == outputDesc)) { 3998 sp<AudioOutputDescriptor> outputDesc2; 3999 if (dupOutputDesc->mOutput1 == outputDesc) { 4000 outputDesc2 = dupOutputDesc->mOutput2; 4001 } else { 4002 outputDesc2 = dupOutputDesc->mOutput1; 4003 } 4004 // As all active tracks on duplicated output will be deleted, 4005 // and as they were also referenced on the other output, the reference 4006 // count for their stream type must be adjusted accordingly on 4007 // the other output. 4008 for (int j = 0; j < AUDIO_STREAM_CNT; j++) { 4009 int refCount = dupOutputDesc->mRefCount[j]; 4010 outputDesc2->changeRefCount((audio_stream_type_t)j,-refCount); 4011 } 4012 audio_io_handle_t duplicatedOutput = mOutputs.keyAt(i); 4013 ALOGV("closeOutput() closing also duplicated output %d", duplicatedOutput); 4014 4015 mpClientInterface->closeOutput(duplicatedOutput); 4016 mOutputs.removeItem(duplicatedOutput); 4017 } 4018 } 4019 4020 nextAudioPortGeneration(); 4021 4022 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4023 if (index >= 0) { 4024 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4025 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 4026 mAudioPatches.removeItemsAt(index); 4027 mpClientInterface->onAudioPatchListUpdate(); 4028 } 4029 4030 AudioParameter param; 4031 param.add(String8("closing"), String8("true")); 4032 mpClientInterface->setParameters(output, param.toString()); 4033 4034 mpClientInterface->closeOutput(output); 4035 mOutputs.removeItem(output); 4036 mPreviousOutputs = mOutputs; 4037 } 4038 4039 void AudioPolicyManager::closeInput(audio_io_handle_t input) 4040 { 4041 ALOGV("closeInput(%d)", input); 4042 4043 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4044 if (inputDesc == NULL) { 4045 ALOGW("closeInput() unknown input %d", input); 4046 return; 4047 } 4048 4049 nextAudioPortGeneration(); 4050 4051 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4052 if (index >= 0) { 4053 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4054 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 4055 mAudioPatches.removeItemsAt(index); 4056 mpClientInterface->onAudioPatchListUpdate(); 4057 } 4058 4059 mpClientInterface->closeInput(input); 4060 mInputs.removeItem(input); 4061 } 4062 4063 SortedVector<audio_io_handle_t> AudioPolicyManager::getOutputsForDevice(audio_devices_t device, 4064 DefaultKeyedVector<audio_io_handle_t, sp<AudioOutputDescriptor> > openOutputs) 4065 { 4066 SortedVector<audio_io_handle_t> outputs; 4067 4068 ALOGVV("getOutputsForDevice() device %04x", device); 4069 for (size_t i = 0; i < openOutputs.size(); i++) { 4070 ALOGVV("output %d isDuplicated=%d device=%04x", 4071 i, openOutputs.valueAt(i)->isDuplicated(), openOutputs.valueAt(i)->supportedDevices()); 4072 if ((device & openOutputs.valueAt(i)->supportedDevices()) == device) { 4073 ALOGVV("getOutputsForDevice() found output %d", openOutputs.keyAt(i)); 4074 outputs.add(openOutputs.keyAt(i)); 4075 } 4076 } 4077 return outputs; 4078 } 4079 4080 bool AudioPolicyManager::vectorsEqual(SortedVector<audio_io_handle_t>& outputs1, 4081 SortedVector<audio_io_handle_t>& outputs2) 4082 { 4083 if (outputs1.size() != outputs2.size()) { 4084 return false; 4085 } 4086 for (size_t i = 0; i < outputs1.size(); i++) { 4087 if (outputs1[i] != outputs2[i]) { 4088 return false; 4089 } 4090 } 4091 return true; 4092 } 4093 4094 void AudioPolicyManager::checkOutputForStrategy(routing_strategy strategy) 4095 { 4096 audio_devices_t oldDevice = getDeviceForStrategy(strategy, true /*fromCache*/); 4097 audio_devices_t newDevice = getDeviceForStrategy(strategy, false /*fromCache*/); 4098 SortedVector<audio_io_handle_t> srcOutputs = getOutputsForDevice(oldDevice, mPreviousOutputs); 4099 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(newDevice, mOutputs); 4100 4101 // also take into account external policy-related changes: add all outputs which are 4102 // associated with policies in the "before" and "after" output vectors 4103 ALOGVV("checkOutputForStrategy(): policy related outputs"); 4104 for (size_t i = 0 ; i < mPreviousOutputs.size() ; i++) { 4105 const sp<AudioOutputDescriptor> desc = mPreviousOutputs.valueAt(i); 4106 if (desc != 0 && desc->mPolicyMix != NULL) { 4107 srcOutputs.add(desc->mIoHandle); 4108 ALOGVV(" previous outputs: adding %d", desc->mIoHandle); 4109 } 4110 } 4111 for (size_t i = 0 ; i < mOutputs.size() ; i++) { 4112 const sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 4113 if (desc != 0 && desc->mPolicyMix != NULL) { 4114 dstOutputs.add(desc->mIoHandle); 4115 ALOGVV(" new outputs: adding %d", desc->mIoHandle); 4116 } 4117 } 4118 4119 if (!vectorsEqual(srcOutputs,dstOutputs)) { 4120 ALOGV("checkOutputForStrategy() strategy %d, moving from output %d to output %d", 4121 strategy, srcOutputs[0], dstOutputs[0]); 4122 // mute strategy while moving tracks from one output to another 4123 for (size_t i = 0; i < srcOutputs.size(); i++) { 4124 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(srcOutputs[i]); 4125 if (desc->isStrategyActive(strategy)) { 4126 setStrategyMute(strategy, true, srcOutputs[i]); 4127 setStrategyMute(strategy, false, srcOutputs[i], MUTE_TIME_MS, newDevice); 4128 } 4129 } 4130 4131 // Move effects associated to this strategy from previous output to new output 4132 if (strategy == STRATEGY_MEDIA) { 4133 audio_io_handle_t fxOutput = selectOutputForEffects(dstOutputs); 4134 SortedVector<audio_io_handle_t> moved; 4135 for (size_t i = 0; i < mEffects.size(); i++) { 4136 sp<EffectDescriptor> effectDesc = mEffects.valueAt(i); 4137 if (effectDesc->mSession == AUDIO_SESSION_OUTPUT_MIX && 4138 effectDesc->mIo != fxOutput) { 4139 if (moved.indexOf(effectDesc->mIo) < 0) { 4140 ALOGV("checkOutputForStrategy() moving effect %d to output %d", 4141 mEffects.keyAt(i), fxOutput); 4142 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, effectDesc->mIo, 4143 fxOutput); 4144 moved.add(effectDesc->mIo); 4145 } 4146 effectDesc->mIo = fxOutput; 4147 } 4148 } 4149 } 4150 // Move tracks associated to this strategy from previous output to new output 4151 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 4152 if (i == AUDIO_STREAM_PATCH) { 4153 continue; 4154 } 4155 if (getStrategy((audio_stream_type_t)i) == strategy) { 4156 mpClientInterface->invalidateStream((audio_stream_type_t)i); 4157 } 4158 } 4159 } 4160 } 4161 4162 void AudioPolicyManager::checkOutputForAllStrategies() 4163 { 4164 if (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) 4165 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 4166 checkOutputForStrategy(STRATEGY_PHONE); 4167 if (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] != AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) 4168 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 4169 checkOutputForStrategy(STRATEGY_SONIFICATION); 4170 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 4171 checkOutputForStrategy(STRATEGY_ACCESSIBILITY); 4172 checkOutputForStrategy(STRATEGY_MEDIA); 4173 checkOutputForStrategy(STRATEGY_DTMF); 4174 checkOutputForStrategy(STRATEGY_REROUTING); 4175 } 4176 4177 audio_io_handle_t AudioPolicyManager::getA2dpOutput() 4178 { 4179 for (size_t i = 0; i < mOutputs.size(); i++) { 4180 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 4181 if (!outputDesc->isDuplicated() && outputDesc->device() & AUDIO_DEVICE_OUT_ALL_A2DP) { 4182 return mOutputs.keyAt(i); 4183 } 4184 } 4185 4186 return 0; 4187 } 4188 4189 void AudioPolicyManager::checkA2dpSuspend() 4190 { 4191 audio_io_handle_t a2dpOutput = getA2dpOutput(); 4192 if (a2dpOutput == 0) { 4193 mA2dpSuspended = false; 4194 return; 4195 } 4196 4197 bool isScoConnected = 4198 ((mAvailableInputDevices.types() & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET & 4199 ~AUDIO_DEVICE_BIT_IN) != 0) || 4200 ((mAvailableOutputDevices.types() & AUDIO_DEVICE_OUT_ALL_SCO) != 0); 4201 // suspend A2DP output if: 4202 // (NOT already suspended) && 4203 // ((SCO device is connected && 4204 // (forced usage for communication || for record is SCO))) || 4205 // (phone state is ringing || in call) 4206 // 4207 // restore A2DP output if: 4208 // (Already suspended) && 4209 // ((SCO device is NOT connected || 4210 // (forced usage NOT for communication && NOT for record is SCO))) && 4211 // (phone state is NOT ringing && NOT in call) 4212 // 4213 if (mA2dpSuspended) { 4214 if ((!isScoConnected || 4215 ((mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] != AUDIO_POLICY_FORCE_BT_SCO) && 4216 (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] != AUDIO_POLICY_FORCE_BT_SCO))) && 4217 ((mPhoneState != AUDIO_MODE_IN_CALL) && 4218 (mPhoneState != AUDIO_MODE_RINGTONE))) { 4219 4220 mpClientInterface->restoreOutput(a2dpOutput); 4221 mA2dpSuspended = false; 4222 } 4223 } else { 4224 if ((isScoConnected && 4225 ((mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO) || 4226 (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO))) || 4227 ((mPhoneState == AUDIO_MODE_IN_CALL) || 4228 (mPhoneState == AUDIO_MODE_RINGTONE))) { 4229 4230 mpClientInterface->suspendOutput(a2dpOutput); 4231 mA2dpSuspended = true; 4232 } 4233 } 4234 } 4235 4236 audio_devices_t AudioPolicyManager::getNewOutputDevice(audio_io_handle_t output, bool fromCache) 4237 { 4238 audio_devices_t device = AUDIO_DEVICE_NONE; 4239 4240 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4241 4242 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4243 if (index >= 0) { 4244 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4245 if (patchDesc->mUid != mUidCached) { 4246 ALOGV("getNewOutputDevice() device %08x forced by patch %d", 4247 outputDesc->device(), outputDesc->mPatchHandle); 4248 return outputDesc->device(); 4249 } 4250 } 4251 4252 // check the following by order of priority to request a routing change if necessary: 4253 // 1: the strategy enforced audible is active and enforced on the output: 4254 // use device for strategy enforced audible 4255 // 2: we are in call or the strategy phone is active on the output: 4256 // use device for strategy phone 4257 // 3: the strategy for enforced audible is active but not enforced on the output: 4258 // use the device for strategy enforced audible 4259 // 4: the strategy sonification is active on the output: 4260 // use device for strategy sonification 4261 // 5: the strategy "respectful" sonification is active on the output: 4262 // use device for strategy "respectful" sonification 4263 // 6: the strategy accessibility is active on the output: 4264 // use device for strategy accessibility 4265 // 7: the strategy media is active on the output: 4266 // use device for strategy media 4267 // 8: the strategy DTMF is active on the output: 4268 // use device for strategy DTMF 4269 // 9: the strategy for beacon, a.k.a. "transmitted through speaker" is active on the output: 4270 // use device for strategy t-t-s 4271 if (outputDesc->isStrategyActive(STRATEGY_ENFORCED_AUDIBLE) && 4272 mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) { 4273 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 4274 } else if (isInCall() || 4275 outputDesc->isStrategyActive(STRATEGY_PHONE)) { 4276 device = getDeviceForStrategy(STRATEGY_PHONE, fromCache); 4277 } else if (outputDesc->isStrategyActive(STRATEGY_ENFORCED_AUDIBLE)) { 4278 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 4279 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION)) { 4280 device = getDeviceForStrategy(STRATEGY_SONIFICATION, fromCache); 4281 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION_RESPECTFUL)) { 4282 device = getDeviceForStrategy(STRATEGY_SONIFICATION_RESPECTFUL, fromCache); 4283 } else if (outputDesc->isStrategyActive(STRATEGY_ACCESSIBILITY)) { 4284 device = getDeviceForStrategy(STRATEGY_ACCESSIBILITY, fromCache); 4285 } else if (outputDesc->isStrategyActive(STRATEGY_MEDIA)) { 4286 device = getDeviceForStrategy(STRATEGY_MEDIA, fromCache); 4287 } else if (outputDesc->isStrategyActive(STRATEGY_DTMF)) { 4288 device = getDeviceForStrategy(STRATEGY_DTMF, fromCache); 4289 } else if (outputDesc->isStrategyActive(STRATEGY_TRANSMITTED_THROUGH_SPEAKER)) { 4290 device = getDeviceForStrategy(STRATEGY_TRANSMITTED_THROUGH_SPEAKER, fromCache); 4291 } else if (outputDesc->isStrategyActive(STRATEGY_REROUTING)) { 4292 device = getDeviceForStrategy(STRATEGY_REROUTING, fromCache); 4293 } 4294 4295 ALOGV("getNewOutputDevice() selected device %x", device); 4296 return device; 4297 } 4298 4299 audio_devices_t AudioPolicyManager::getNewInputDevice(audio_io_handle_t input) 4300 { 4301 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4302 4303 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4304 if (index >= 0) { 4305 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4306 if (patchDesc->mUid != mUidCached) { 4307 ALOGV("getNewInputDevice() device %08x forced by patch %d", 4308 inputDesc->mDevice, inputDesc->mPatchHandle); 4309 return inputDesc->mDevice; 4310 } 4311 } 4312 4313 audio_devices_t device = getDeviceAndMixForInputSource(inputDesc->mInputSource); 4314 4315 ALOGV("getNewInputDevice() selected device %x", device); 4316 return device; 4317 } 4318 4319 uint32_t AudioPolicyManager::getStrategyForStream(audio_stream_type_t stream) { 4320 return (uint32_t)getStrategy(stream); 4321 } 4322 4323 audio_devices_t AudioPolicyManager::getDevicesForStream(audio_stream_type_t stream) { 4324 // By checking the range of stream before calling getStrategy, we avoid 4325 // getStrategy's behavior for invalid streams. getStrategy would do a ALOGE 4326 // and then return STRATEGY_MEDIA, but we want to return the empty set. 4327 if (stream < (audio_stream_type_t) 0 || stream >= AUDIO_STREAM_PUBLIC_CNT) { 4328 return AUDIO_DEVICE_NONE; 4329 } 4330 audio_devices_t devices; 4331 AudioPolicyManager::routing_strategy strategy = getStrategy(stream); 4332 devices = getDeviceForStrategy(strategy, true /*fromCache*/); 4333 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(devices, mOutputs); 4334 for (size_t i = 0; i < outputs.size(); i++) { 4335 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 4336 if (outputDesc->isStrategyActive(strategy)) { 4337 devices = outputDesc->device(); 4338 break; 4339 } 4340 } 4341 4342 /*Filter SPEAKER_SAFE out of results, as AudioService doesn't know about it 4343 and doesn't really need to.*/ 4344 if (devices & AUDIO_DEVICE_OUT_SPEAKER_SAFE) { 4345 devices |= AUDIO_DEVICE_OUT_SPEAKER; 4346 devices &= ~AUDIO_DEVICE_OUT_SPEAKER_SAFE; 4347 } 4348 4349 return devices; 4350 } 4351 4352 AudioPolicyManager::routing_strategy AudioPolicyManager::getStrategy( 4353 audio_stream_type_t stream) { 4354 4355 ALOG_ASSERT(stream != AUDIO_STREAM_PATCH,"getStrategy() called for AUDIO_STREAM_PATCH"); 4356 4357 // stream to strategy mapping 4358 switch (stream) { 4359 case AUDIO_STREAM_VOICE_CALL: 4360 case AUDIO_STREAM_BLUETOOTH_SCO: 4361 return STRATEGY_PHONE; 4362 case AUDIO_STREAM_RING: 4363 case AUDIO_STREAM_ALARM: 4364 return STRATEGY_SONIFICATION; 4365 case AUDIO_STREAM_NOTIFICATION: 4366 return STRATEGY_SONIFICATION_RESPECTFUL; 4367 case AUDIO_STREAM_DTMF: 4368 return STRATEGY_DTMF; 4369 default: 4370 ALOGE("unknown stream type %d", stream); 4371 case AUDIO_STREAM_SYSTEM: 4372 // NOTE: SYSTEM stream uses MEDIA strategy because muting music and switching outputs 4373 // while key clicks are played produces a poor result 4374 case AUDIO_STREAM_MUSIC: 4375 return STRATEGY_MEDIA; 4376 case AUDIO_STREAM_ENFORCED_AUDIBLE: 4377 return STRATEGY_ENFORCED_AUDIBLE; 4378 case AUDIO_STREAM_TTS: 4379 return STRATEGY_TRANSMITTED_THROUGH_SPEAKER; 4380 case AUDIO_STREAM_ACCESSIBILITY: 4381 return STRATEGY_ACCESSIBILITY; 4382 case AUDIO_STREAM_REROUTING: 4383 return STRATEGY_REROUTING; 4384 } 4385 } 4386 4387 uint32_t AudioPolicyManager::getStrategyForAttr(const audio_attributes_t *attr) { 4388 // flags to strategy mapping 4389 if ((attr->flags & AUDIO_FLAG_BEACON) == AUDIO_FLAG_BEACON) { 4390 return (uint32_t) STRATEGY_TRANSMITTED_THROUGH_SPEAKER; 4391 } 4392 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 4393 return (uint32_t) STRATEGY_ENFORCED_AUDIBLE; 4394 } 4395 4396 // usage to strategy mapping 4397 switch (attr->usage) { 4398 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 4399 if (isStreamActive(AUDIO_STREAM_RING) || isStreamActive(AUDIO_STREAM_ALARM)) { 4400 return (uint32_t) STRATEGY_SONIFICATION; 4401 } 4402 if (isInCall()) { 4403 return (uint32_t) STRATEGY_PHONE; 4404 } 4405 return (uint32_t) STRATEGY_ACCESSIBILITY; 4406 4407 case AUDIO_USAGE_MEDIA: 4408 case AUDIO_USAGE_GAME: 4409 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 4410 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 4411 return (uint32_t) STRATEGY_MEDIA; 4412 4413 case AUDIO_USAGE_VOICE_COMMUNICATION: 4414 return (uint32_t) STRATEGY_PHONE; 4415 4416 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 4417 return (uint32_t) STRATEGY_DTMF; 4418 4419 case AUDIO_USAGE_ALARM: 4420 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 4421 return (uint32_t) STRATEGY_SONIFICATION; 4422 4423 case AUDIO_USAGE_NOTIFICATION: 4424 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 4425 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 4426 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 4427 case AUDIO_USAGE_NOTIFICATION_EVENT: 4428 return (uint32_t) STRATEGY_SONIFICATION_RESPECTFUL; 4429 4430 case AUDIO_USAGE_UNKNOWN: 4431 default: 4432 return (uint32_t) STRATEGY_MEDIA; 4433 } 4434 } 4435 4436 void AudioPolicyManager::handleNotificationRoutingForStream(audio_stream_type_t stream) { 4437 switch(stream) { 4438 case AUDIO_STREAM_MUSIC: 4439 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 4440 updateDevicesAndOutputs(); 4441 break; 4442 default: 4443 break; 4444 } 4445 } 4446 4447 bool AudioPolicyManager::isAnyOutputActive(audio_stream_type_t streamToIgnore) { 4448 for (size_t s = 0 ; s < AUDIO_STREAM_CNT ; s++) { 4449 if (s == (size_t) streamToIgnore) { 4450 continue; 4451 } 4452 for (size_t i = 0; i < mOutputs.size(); i++) { 4453 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 4454 if (outputDesc->mRefCount[s] != 0) { 4455 return true; 4456 } 4457 } 4458 } 4459 return false; 4460 } 4461 4462 uint32_t AudioPolicyManager::handleEventForBeacon(int event) { 4463 switch(event) { 4464 case STARTING_OUTPUT: 4465 mBeaconMuteRefCount++; 4466 break; 4467 case STOPPING_OUTPUT: 4468 if (mBeaconMuteRefCount > 0) { 4469 mBeaconMuteRefCount--; 4470 } 4471 break; 4472 case STARTING_BEACON: 4473 mBeaconPlayingRefCount++; 4474 break; 4475 case STOPPING_BEACON: 4476 if (mBeaconPlayingRefCount > 0) { 4477 mBeaconPlayingRefCount--; 4478 } 4479 break; 4480 } 4481 4482 if (mBeaconMuteRefCount > 0) { 4483 // any playback causes beacon to be muted 4484 return setBeaconMute(true); 4485 } else { 4486 // no other playback: unmute when beacon starts playing, mute when it stops 4487 return setBeaconMute(mBeaconPlayingRefCount == 0); 4488 } 4489 } 4490 4491 uint32_t AudioPolicyManager::setBeaconMute(bool mute) { 4492 ALOGV("setBeaconMute(%d) mBeaconMuteRefCount=%d mBeaconPlayingRefCount=%d", 4493 mute, mBeaconMuteRefCount, mBeaconPlayingRefCount); 4494 // keep track of muted state to avoid repeating mute/unmute operations 4495 if (mBeaconMuted != mute) { 4496 // mute/unmute AUDIO_STREAM_TTS on all outputs 4497 ALOGV("\t muting %d", mute); 4498 uint32_t maxLatency = 0; 4499 for (size_t i = 0; i < mOutputs.size(); i++) { 4500 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 4501 setStreamMute(AUDIO_STREAM_TTS, mute/*on*/, 4502 desc->mIoHandle, 4503 0 /*delay*/, AUDIO_DEVICE_NONE); 4504 const uint32_t latency = desc->latency() * 2; 4505 if (latency > maxLatency) { 4506 maxLatency = latency; 4507 } 4508 } 4509 mBeaconMuted = mute; 4510 return maxLatency; 4511 } 4512 return 0; 4513 } 4514 4515 audio_devices_t AudioPolicyManager::getDeviceForStrategy(routing_strategy strategy, 4516 bool fromCache) 4517 { 4518 uint32_t device = AUDIO_DEVICE_NONE; 4519 4520 if (fromCache) { 4521 ALOGVV("getDeviceForStrategy() from cache strategy %d, device %x", 4522 strategy, mDeviceForStrategy[strategy]); 4523 return mDeviceForStrategy[strategy]; 4524 } 4525 audio_devices_t availableOutputDeviceTypes = mAvailableOutputDevices.types(); 4526 switch (strategy) { 4527 4528 case STRATEGY_TRANSMITTED_THROUGH_SPEAKER: 4529 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4530 if (!device) { 4531 ALOGE("getDeviceForStrategy() no device found for "\ 4532 "STRATEGY_TRANSMITTED_THROUGH_SPEAKER"); 4533 } 4534 break; 4535 4536 case STRATEGY_SONIFICATION_RESPECTFUL: 4537 if (isInCall()) { 4538 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 4539 } else if (isStreamActiveRemotely(AUDIO_STREAM_MUSIC, 4540 SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { 4541 // while media is playing on a remote device, use the the sonification behavior. 4542 // Note that we test this usecase before testing if media is playing because 4543 // the isStreamActive() method only informs about the activity of a stream, not 4544 // if it's for local playback. Note also that we use the same delay between both tests 4545 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 4546 //user "safe" speaker if available instead of normal speaker to avoid triggering 4547 //other acoustic safety mechanisms for notification 4548 if (device == AUDIO_DEVICE_OUT_SPEAKER && (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER_SAFE)) 4549 device = AUDIO_DEVICE_OUT_SPEAKER_SAFE; 4550 } else if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { 4551 // while media is playing (or has recently played), use the same device 4552 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); 4553 } else { 4554 // when media is not playing anymore, fall back on the sonification behavior 4555 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 4556 //user "safe" speaker if available instead of normal speaker to avoid triggering 4557 //other acoustic safety mechanisms for notification 4558 if (device == AUDIO_DEVICE_OUT_SPEAKER && (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER_SAFE)) 4559 device = AUDIO_DEVICE_OUT_SPEAKER_SAFE; 4560 } 4561 4562 break; 4563 4564 case STRATEGY_DTMF: 4565 if (!isInCall()) { 4566 // when off call, DTMF strategy follows the same rules as MEDIA strategy 4567 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); 4568 break; 4569 } 4570 // when in call, DTMF and PHONE strategies follow the same rules 4571 // FALL THROUGH 4572 4573 case STRATEGY_PHONE: 4574 // Force use of only devices on primary output if: 4575 // - in call AND 4576 // - cannot route from voice call RX OR 4577 // - audio HAL version is < 3.0 and TX device is on the primary HW module 4578 if (mPhoneState == AUDIO_MODE_IN_CALL) { 4579 audio_devices_t txDevice = 4580 getDeviceAndMixForInputSource(AUDIO_SOURCE_VOICE_COMMUNICATION); 4581 sp<AudioOutputDescriptor> hwOutputDesc = mOutputs.valueFor(mPrimaryOutput); 4582 if (((mAvailableInputDevices.types() & 4583 AUDIO_DEVICE_IN_TELEPHONY_RX & ~AUDIO_DEVICE_BIT_IN) == 0) || 4584 (((txDevice & availablePrimaryInputDevices() & ~AUDIO_DEVICE_BIT_IN) != 0) && 4585 (hwOutputDesc->getAudioPort()->mModule->mHalVersion < 4586 AUDIO_DEVICE_API_VERSION_3_0))) { 4587 availableOutputDeviceTypes = availablePrimaryOutputDevices(); 4588 } 4589 } 4590 // for phone strategy, we first consider the forced use and then the available devices by order 4591 // of priority 4592 switch (mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]) { 4593 case AUDIO_POLICY_FORCE_BT_SCO: 4594 if (!isInCall() || strategy != STRATEGY_DTMF) { 4595 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT; 4596 if (device) break; 4597 } 4598 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET; 4599 if (device) break; 4600 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO; 4601 if (device) break; 4602 // if SCO device is requested but no SCO device is available, fall back to default case 4603 // FALL THROUGH 4604 4605 default: // FORCE_NONE 4606 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to A2DP 4607 if (!isInCall() && 4608 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 4609 (getA2dpOutput() != 0)) { 4610 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; 4611 if (device) break; 4612 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; 4613 if (device) break; 4614 } 4615 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; 4616 if (device) break; 4617 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADSET; 4618 if (device) break; 4619 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 4620 if (device) break; 4621 if (mPhoneState != AUDIO_MODE_IN_CALL) { 4622 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 4623 if (device) break; 4624 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 4625 if (device) break; 4626 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 4627 if (device) break; 4628 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 4629 if (device) break; 4630 } 4631 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_EARPIECE; 4632 if (device) break; 4633 device = mDefaultOutputDevice->mDeviceType; 4634 if (device == AUDIO_DEVICE_NONE) { 4635 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE"); 4636 } 4637 break; 4638 4639 case AUDIO_POLICY_FORCE_SPEAKER: 4640 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to 4641 // A2DP speaker when forcing to speaker output 4642 if (!isInCall() && 4643 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 4644 (getA2dpOutput() != 0)) { 4645 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; 4646 if (device) break; 4647 } 4648 if (!isInCall()) { 4649 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 4650 if (device) break; 4651 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 4652 if (device) break; 4653 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 4654 if (device) break; 4655 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 4656 if (device) break; 4657 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 4658 if (device) break; 4659 } 4660 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_LINE; 4661 if (device) break; 4662 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4663 if (device) break; 4664 device = mDefaultOutputDevice->mDeviceType; 4665 if (device == AUDIO_DEVICE_NONE) { 4666 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE, FORCE_SPEAKER"); 4667 } 4668 break; 4669 } 4670 break; 4671 4672 case STRATEGY_SONIFICATION: 4673 4674 // If incall, just select the STRATEGY_PHONE device: The rest of the behavior is handled by 4675 // handleIncallSonification(). 4676 if (isInCall()) { 4677 device = getDeviceForStrategy(STRATEGY_PHONE, false /*fromCache*/); 4678 break; 4679 } 4680 // FALL THROUGH 4681 4682 case STRATEGY_ENFORCED_AUDIBLE: 4683 // strategy STRATEGY_ENFORCED_AUDIBLE uses same routing policy as STRATEGY_SONIFICATION 4684 // except: 4685 // - when in call where it doesn't default to STRATEGY_PHONE behavior 4686 // - in countries where not enforced in which case it follows STRATEGY_MEDIA 4687 4688 if ((strategy == STRATEGY_SONIFICATION) || 4689 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED)) { 4690 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4691 if (device == AUDIO_DEVICE_NONE) { 4692 ALOGE("getDeviceForStrategy() speaker device not found for STRATEGY_SONIFICATION"); 4693 } 4694 } 4695 // The second device used for sonification is the same as the device used by media strategy 4696 // FALL THROUGH 4697 4698 // FIXME: STRATEGY_ACCESSIBILITY and STRATEGY_REROUTING follow STRATEGY_MEDIA for now 4699 case STRATEGY_ACCESSIBILITY: 4700 if (strategy == STRATEGY_ACCESSIBILITY) { 4701 // do not route accessibility prompts to a digital output currently configured with a 4702 // compressed format as they would likely not be mixed and dropped. 4703 for (size_t i = 0; i < mOutputs.size(); i++) { 4704 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 4705 audio_devices_t devices = desc->device() & 4706 (AUDIO_DEVICE_OUT_HDMI | AUDIO_DEVICE_OUT_SPDIF | AUDIO_DEVICE_OUT_HDMI_ARC); 4707 if (desc->isActive() && !audio_is_linear_pcm(desc->mFormat) && 4708 devices != AUDIO_DEVICE_NONE) { 4709 availableOutputDeviceTypes = availableOutputDeviceTypes & ~devices; 4710 } 4711 } 4712 } 4713 // FALL THROUGH 4714 4715 case STRATEGY_REROUTING: 4716 case STRATEGY_MEDIA: { 4717 uint32_t device2 = AUDIO_DEVICE_NONE; 4718 if (strategy != STRATEGY_SONIFICATION) { 4719 // no sonification on remote submix (e.g. WFD) 4720 if (mAvailableOutputDevices.getDevice(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, String8("0")) != 0) { 4721 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_REMOTE_SUBMIX; 4722 } 4723 } 4724 if ((device2 == AUDIO_DEVICE_NONE) && 4725 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 4726 (getA2dpOutput() != 0)) { 4727 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; 4728 if (device2 == AUDIO_DEVICE_NONE) { 4729 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; 4730 } 4731 if (device2 == AUDIO_DEVICE_NONE) { 4732 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; 4733 } 4734 } 4735 if ((device2 == AUDIO_DEVICE_NONE) && 4736 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] == AUDIO_POLICY_FORCE_SPEAKER)) { 4737 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4738 } 4739 if (device2 == AUDIO_DEVICE_NONE) { 4740 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; 4741 } 4742 if ((device2 == AUDIO_DEVICE_NONE)) { 4743 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_LINE; 4744 } 4745 if (device2 == AUDIO_DEVICE_NONE) { 4746 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADSET; 4747 } 4748 if (device2 == AUDIO_DEVICE_NONE) { 4749 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 4750 } 4751 if (device2 == AUDIO_DEVICE_NONE) { 4752 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 4753 } 4754 if (device2 == AUDIO_DEVICE_NONE) { 4755 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 4756 } 4757 if ((device2 == AUDIO_DEVICE_NONE) && (strategy != STRATEGY_SONIFICATION)) { 4758 // no sonification on aux digital (e.g. HDMI) 4759 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 4760 } 4761 if ((device2 == AUDIO_DEVICE_NONE) && 4762 (mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK] == AUDIO_POLICY_FORCE_ANALOG_DOCK)) { 4763 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 4764 } 4765 if (device2 == AUDIO_DEVICE_NONE) { 4766 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4767 } 4768 int device3 = AUDIO_DEVICE_NONE; 4769 if (strategy == STRATEGY_MEDIA) { 4770 // ARC, SPDIF and AUX_LINE can co-exist with others. 4771 device3 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_HDMI_ARC; 4772 device3 |= (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPDIF); 4773 device3 |= (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_LINE); 4774 } 4775 4776 device2 |= device3; 4777 // device is DEVICE_OUT_SPEAKER if we come from case STRATEGY_SONIFICATION or 4778 // STRATEGY_ENFORCED_AUDIBLE, AUDIO_DEVICE_NONE otherwise 4779 device |= device2; 4780 4781 // If hdmi system audio mode is on, remove speaker out of output list. 4782 if ((strategy == STRATEGY_MEDIA) && 4783 (mForceUse[AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO] == 4784 AUDIO_POLICY_FORCE_HDMI_SYSTEM_AUDIO_ENFORCED)) { 4785 device &= ~AUDIO_DEVICE_OUT_SPEAKER; 4786 } 4787 4788 if (device) break; 4789 device = mDefaultOutputDevice->mDeviceType; 4790 if (device == AUDIO_DEVICE_NONE) { 4791 ALOGE("getDeviceForStrategy() no device found for STRATEGY_MEDIA"); 4792 } 4793 } break; 4794 4795 default: 4796 ALOGW("getDeviceForStrategy() unknown strategy: %d", strategy); 4797 break; 4798 } 4799 4800 ALOGVV("getDeviceForStrategy() strategy %d, device %x", strategy, device); 4801 return device; 4802 } 4803 4804 void AudioPolicyManager::updateDevicesAndOutputs() 4805 { 4806 for (int i = 0; i < NUM_STRATEGIES; i++) { 4807 mDeviceForStrategy[i] = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 4808 } 4809 mPreviousOutputs = mOutputs; 4810 } 4811 4812 uint32_t AudioPolicyManager::checkDeviceMuteStrategies(sp<AudioOutputDescriptor> outputDesc, 4813 audio_devices_t prevDevice, 4814 uint32_t delayMs) 4815 { 4816 // mute/unmute strategies using an incompatible device combination 4817 // if muting, wait for the audio in pcm buffer to be drained before proceeding 4818 // if unmuting, unmute only after the specified delay 4819 if (outputDesc->isDuplicated()) { 4820 return 0; 4821 } 4822 4823 uint32_t muteWaitMs = 0; 4824 audio_devices_t device = outputDesc->device(); 4825 bool shouldMute = outputDesc->isActive() && (popcount(device) >= 2); 4826 4827 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 4828 audio_devices_t curDevice = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 4829 curDevice = curDevice & outputDesc->mProfile->mSupportedDevices.types(); 4830 bool mute = shouldMute && (curDevice & device) && (curDevice != device); 4831 bool doMute = false; 4832 4833 if (mute && !outputDesc->mStrategyMutedByDevice[i]) { 4834 doMute = true; 4835 outputDesc->mStrategyMutedByDevice[i] = true; 4836 } else if (!mute && outputDesc->mStrategyMutedByDevice[i]){ 4837 doMute = true; 4838 outputDesc->mStrategyMutedByDevice[i] = false; 4839 } 4840 if (doMute) { 4841 for (size_t j = 0; j < mOutputs.size(); j++) { 4842 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(j); 4843 // skip output if it does not share any device with current output 4844 if ((desc->supportedDevices() & outputDesc->supportedDevices()) 4845 == AUDIO_DEVICE_NONE) { 4846 continue; 4847 } 4848 audio_io_handle_t curOutput = mOutputs.keyAt(j); 4849 ALOGVV("checkDeviceMuteStrategies() %s strategy %d (curDevice %04x) on output %d", 4850 mute ? "muting" : "unmuting", i, curDevice, curOutput); 4851 setStrategyMute((routing_strategy)i, mute, curOutput, mute ? 0 : delayMs); 4852 if (desc->isStrategyActive((routing_strategy)i)) { 4853 if (mute) { 4854 // FIXME: should not need to double latency if volume could be applied 4855 // immediately by the audioflinger mixer. We must account for the delay 4856 // between now and the next time the audioflinger thread for this output 4857 // will process a buffer (which corresponds to one buffer size, 4858 // usually 1/2 or 1/4 of the latency). 4859 if (muteWaitMs < desc->latency() * 2) { 4860 muteWaitMs = desc->latency() * 2; 4861 } 4862 } 4863 } 4864 } 4865 } 4866 } 4867 4868 // temporary mute output if device selection changes to avoid volume bursts due to 4869 // different per device volumes 4870 if (outputDesc->isActive() && (device != prevDevice)) { 4871 if (muteWaitMs < outputDesc->latency() * 2) { 4872 muteWaitMs = outputDesc->latency() * 2; 4873 } 4874 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 4875 if (outputDesc->isStrategyActive((routing_strategy)i)) { 4876 setStrategyMute((routing_strategy)i, true, outputDesc->mIoHandle); 4877 // do tempMute unmute after twice the mute wait time 4878 setStrategyMute((routing_strategy)i, false, outputDesc->mIoHandle, 4879 muteWaitMs *2, device); 4880 } 4881 } 4882 } 4883 4884 // wait for the PCM output buffers to empty before proceeding with the rest of the command 4885 if (muteWaitMs > delayMs) { 4886 muteWaitMs -= delayMs; 4887 usleep(muteWaitMs * 1000); 4888 return muteWaitMs; 4889 } 4890 return 0; 4891 } 4892 4893 uint32_t AudioPolicyManager::setOutputDevice(audio_io_handle_t output, 4894 audio_devices_t device, 4895 bool force, 4896 int delayMs, 4897 audio_patch_handle_t *patchHandle, 4898 const char* address) 4899 { 4900 ALOGV("setOutputDevice() output %d device %04x delayMs %d", output, device, delayMs); 4901 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4902 AudioParameter param; 4903 uint32_t muteWaitMs; 4904 4905 if (outputDesc->isDuplicated()) { 4906 muteWaitMs = setOutputDevice(outputDesc->mOutput1->mIoHandle, device, force, delayMs); 4907 muteWaitMs += setOutputDevice(outputDesc->mOutput2->mIoHandle, device, force, delayMs); 4908 return muteWaitMs; 4909 } 4910 // no need to proceed if new device is not AUDIO_DEVICE_NONE and not supported by current 4911 // output profile 4912 if ((device != AUDIO_DEVICE_NONE) && 4913 ((device & outputDesc->mProfile->mSupportedDevices.types()) == 0)) { 4914 return 0; 4915 } 4916 4917 // filter devices according to output selected 4918 device = (audio_devices_t)(device & outputDesc->mProfile->mSupportedDevices.types()); 4919 4920 audio_devices_t prevDevice = outputDesc->mDevice; 4921 4922 ALOGV("setOutputDevice() prevDevice %04x", prevDevice); 4923 4924 if (device != AUDIO_DEVICE_NONE) { 4925 outputDesc->mDevice = device; 4926 } 4927 muteWaitMs = checkDeviceMuteStrategies(outputDesc, prevDevice, delayMs); 4928 4929 // Do not change the routing if: 4930 // the requested device is AUDIO_DEVICE_NONE 4931 // OR the requested device is the same as current device 4932 // AND force is not specified 4933 // AND the output is connected by a valid audio patch. 4934 // Doing this check here allows the caller to call setOutputDevice() without conditions 4935 if ((device == AUDIO_DEVICE_NONE || device == prevDevice) && !force && 4936 outputDesc->mPatchHandle != 0) { 4937 ALOGV("setOutputDevice() setting same device %04x or null device for output %d", 4938 device, output); 4939 return muteWaitMs; 4940 } 4941 4942 ALOGV("setOutputDevice() changing device"); 4943 4944 // do the routing 4945 if (device == AUDIO_DEVICE_NONE) { 4946 resetOutputDevice(output, delayMs, NULL); 4947 } else { 4948 DeviceVector deviceList = (address == NULL) ? 4949 mAvailableOutputDevices.getDevicesFromType(device) 4950 : mAvailableOutputDevices.getDevicesFromTypeAddr(device, String8(address)); 4951 if (!deviceList.isEmpty()) { 4952 struct audio_patch patch; 4953 outputDesc->toAudioPortConfig(&patch.sources[0]); 4954 patch.num_sources = 1; 4955 patch.num_sinks = 0; 4956 for (size_t i = 0; i < deviceList.size() && i < AUDIO_PATCH_PORTS_MAX; i++) { 4957 deviceList.itemAt(i)->toAudioPortConfig(&patch.sinks[i]); 4958 patch.num_sinks++; 4959 } 4960 ssize_t index; 4961 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 4962 index = mAudioPatches.indexOfKey(*patchHandle); 4963 } else { 4964 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4965 } 4966 sp< AudioPatch> patchDesc; 4967 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 4968 if (index >= 0) { 4969 patchDesc = mAudioPatches.valueAt(index); 4970 afPatchHandle = patchDesc->mAfPatchHandle; 4971 } 4972 4973 status_t status = mpClientInterface->createAudioPatch(&patch, 4974 &afPatchHandle, 4975 delayMs); 4976 ALOGV("setOutputDevice() createAudioPatch returned %d patchHandle %d" 4977 "num_sources %d num_sinks %d", 4978 status, afPatchHandle, patch.num_sources, patch.num_sinks); 4979 if (status == NO_ERROR) { 4980 if (index < 0) { 4981 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 4982 &patch, mUidCached); 4983 addAudioPatch(patchDesc->mHandle, patchDesc); 4984 } else { 4985 patchDesc->mPatch = patch; 4986 } 4987 patchDesc->mAfPatchHandle = afPatchHandle; 4988 patchDesc->mUid = mUidCached; 4989 if (patchHandle) { 4990 *patchHandle = patchDesc->mHandle; 4991 } 4992 outputDesc->mPatchHandle = patchDesc->mHandle; 4993 nextAudioPortGeneration(); 4994 mpClientInterface->onAudioPatchListUpdate(); 4995 } 4996 } 4997 4998 // inform all input as well 4999 for (size_t i = 0; i < mInputs.size(); i++) { 5000 const sp<AudioInputDescriptor> inputDescriptor = mInputs.valueAt(i); 5001 if (!isVirtualInputDevice(inputDescriptor->mDevice)) { 5002 AudioParameter inputCmd = AudioParameter(); 5003 ALOGV("%s: inform input %d of device:%d", __func__, 5004 inputDescriptor->mIoHandle, device); 5005 inputCmd.addInt(String8(AudioParameter::keyRouting),device); 5006 mpClientInterface->setParameters(inputDescriptor->mIoHandle, 5007 inputCmd.toString(), 5008 delayMs); 5009 } 5010 } 5011 } 5012 5013 // update stream volumes according to new device 5014 applyStreamVolumes(output, device, delayMs); 5015 5016 return muteWaitMs; 5017 } 5018 5019 status_t AudioPolicyManager::resetOutputDevice(audio_io_handle_t output, 5020 int delayMs, 5021 audio_patch_handle_t *patchHandle) 5022 { 5023 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 5024 ssize_t index; 5025 if (patchHandle) { 5026 index = mAudioPatches.indexOfKey(*patchHandle); 5027 } else { 5028 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 5029 } 5030 if (index < 0) { 5031 return INVALID_OPERATION; 5032 } 5033 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 5034 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, delayMs); 5035 ALOGV("resetOutputDevice() releaseAudioPatch returned %d", status); 5036 outputDesc->mPatchHandle = 0; 5037 removeAudioPatch(patchDesc->mHandle); 5038 nextAudioPortGeneration(); 5039 mpClientInterface->onAudioPatchListUpdate(); 5040 return status; 5041 } 5042 5043 status_t AudioPolicyManager::setInputDevice(audio_io_handle_t input, 5044 audio_devices_t device, 5045 bool force, 5046 audio_patch_handle_t *patchHandle) 5047 { 5048 status_t status = NO_ERROR; 5049 5050 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 5051 if ((device != AUDIO_DEVICE_NONE) && ((device != inputDesc->mDevice) || force)) { 5052 inputDesc->mDevice = device; 5053 5054 DeviceVector deviceList = mAvailableInputDevices.getDevicesFromType(device); 5055 if (!deviceList.isEmpty()) { 5056 struct audio_patch patch; 5057 inputDesc->toAudioPortConfig(&patch.sinks[0]); 5058 // AUDIO_SOURCE_HOTWORD is for internal use only: 5059 // handled as AUDIO_SOURCE_VOICE_RECOGNITION by the audio HAL 5060 if (patch.sinks[0].ext.mix.usecase.source == AUDIO_SOURCE_HOTWORD && 5061 !inputDesc->mIsSoundTrigger) { 5062 patch.sinks[0].ext.mix.usecase.source = AUDIO_SOURCE_VOICE_RECOGNITION; 5063 } 5064 patch.num_sinks = 1; 5065 //only one input device for now 5066 deviceList.itemAt(0)->toAudioPortConfig(&patch.sources[0]); 5067 patch.num_sources = 1; 5068 ssize_t index; 5069 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 5070 index = mAudioPatches.indexOfKey(*patchHandle); 5071 } else { 5072 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 5073 } 5074 sp< AudioPatch> patchDesc; 5075 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 5076 if (index >= 0) { 5077 patchDesc = mAudioPatches.valueAt(index); 5078 afPatchHandle = patchDesc->mAfPatchHandle; 5079 } 5080 5081 status_t status = mpClientInterface->createAudioPatch(&patch, 5082 &afPatchHandle, 5083 0); 5084 ALOGV("setInputDevice() createAudioPatch returned %d patchHandle %d", 5085 status, afPatchHandle); 5086 if (status == NO_ERROR) { 5087 if (index < 0) { 5088 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 5089 &patch, mUidCached); 5090 addAudioPatch(patchDesc->mHandle, patchDesc); 5091 } else { 5092 patchDesc->mPatch = patch; 5093 } 5094 patchDesc->mAfPatchHandle = afPatchHandle; 5095 patchDesc->mUid = mUidCached; 5096 if (patchHandle) { 5097 *patchHandle = patchDesc->mHandle; 5098 } 5099 inputDesc->mPatchHandle = patchDesc->mHandle; 5100 nextAudioPortGeneration(); 5101 mpClientInterface->onAudioPatchListUpdate(); 5102 } 5103 } 5104 } 5105 return status; 5106 } 5107 5108 status_t AudioPolicyManager::resetInputDevice(audio_io_handle_t input, 5109 audio_patch_handle_t *patchHandle) 5110 { 5111 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 5112 ssize_t index; 5113 if (patchHandle) { 5114 index = mAudioPatches.indexOfKey(*patchHandle); 5115 } else { 5116 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 5117 } 5118 if (index < 0) { 5119 return INVALID_OPERATION; 5120 } 5121 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 5122 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 5123 ALOGV("resetInputDevice() releaseAudioPatch returned %d", status); 5124 inputDesc->mPatchHandle = 0; 5125 removeAudioPatch(patchDesc->mHandle); 5126 nextAudioPortGeneration(); 5127 mpClientInterface->onAudioPatchListUpdate(); 5128 return status; 5129 } 5130 5131 sp<AudioPolicyManager::IOProfile> AudioPolicyManager::getInputProfile(audio_devices_t device, 5132 String8 address, 5133 uint32_t& samplingRate, 5134 audio_format_t format, 5135 audio_channel_mask_t channelMask, 5136 audio_input_flags_t flags) 5137 { 5138 // Choose an input profile based on the requested capture parameters: select the first available 5139 // profile supporting all requested parameters. 5140 5141 for (size_t i = 0; i < mHwModules.size(); i++) 5142 { 5143 if (mHwModules[i]->mHandle == 0) { 5144 continue; 5145 } 5146 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 5147 { 5148 sp<IOProfile> profile = mHwModules[i]->mInputProfiles[j]; 5149 // profile->log(); 5150 if (profile->isCompatibleProfile(device, address, samplingRate, 5151 &samplingRate /*updatedSamplingRate*/, 5152 format, channelMask, (audio_output_flags_t) flags)) { 5153 5154 return profile; 5155 } 5156 } 5157 } 5158 return NULL; 5159 } 5160 5161 5162 audio_devices_t AudioPolicyManager::getDeviceAndMixForInputSource(audio_source_t inputSource, 5163 AudioMix **policyMix) 5164 { 5165 audio_devices_t availableDeviceTypes = mAvailableInputDevices.types() & 5166 ~AUDIO_DEVICE_BIT_IN; 5167 5168 for (size_t i = 0; i < mPolicyMixes.size(); i++) { 5169 if (mPolicyMixes[i]->mMix.mMixType != MIX_TYPE_RECORDERS) { 5170 continue; 5171 } 5172 for (size_t j = 0; j < mPolicyMixes[i]->mMix.mCriteria.size(); j++) { 5173 if ((RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET == mPolicyMixes[i]->mMix.mCriteria[j].mRule && 5174 mPolicyMixes[i]->mMix.mCriteria[j].mAttr.mSource == inputSource) || 5175 (RULE_EXCLUDE_ATTRIBUTE_CAPTURE_PRESET == mPolicyMixes[i]->mMix.mCriteria[j].mRule && 5176 mPolicyMixes[i]->mMix.mCriteria[j].mAttr.mSource != inputSource)) { 5177 if (availableDeviceTypes & AUDIO_DEVICE_IN_REMOTE_SUBMIX) { 5178 if (policyMix != NULL) { 5179 *policyMix = &mPolicyMixes[i]->mMix; 5180 } 5181 return AUDIO_DEVICE_IN_REMOTE_SUBMIX; 5182 } 5183 break; 5184 } 5185 } 5186 } 5187 5188 return getDeviceForInputSource(inputSource); 5189 } 5190 5191 audio_devices_t AudioPolicyManager::getDeviceForInputSource(audio_source_t inputSource) 5192 { 5193 uint32_t device = AUDIO_DEVICE_NONE; 5194 audio_devices_t availableDeviceTypes = mAvailableInputDevices.types() & 5195 ~AUDIO_DEVICE_BIT_IN; 5196 5197 switch (inputSource) { 5198 case AUDIO_SOURCE_VOICE_UPLINK: 5199 if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) { 5200 device = AUDIO_DEVICE_IN_VOICE_CALL; 5201 break; 5202 } 5203 break; 5204 5205 case AUDIO_SOURCE_DEFAULT: 5206 case AUDIO_SOURCE_MIC: 5207 if (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_A2DP) { 5208 device = AUDIO_DEVICE_IN_BLUETOOTH_A2DP; 5209 } else if ((mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO) && 5210 (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET)) { 5211 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 5212 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 5213 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 5214 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 5215 device = AUDIO_DEVICE_IN_USB_DEVICE; 5216 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 5217 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 5218 } 5219 break; 5220 5221 case AUDIO_SOURCE_VOICE_COMMUNICATION: 5222 // Allow only use of devices on primary input if in call and HAL does not support routing 5223 // to voice call path. 5224 if ((mPhoneState == AUDIO_MODE_IN_CALL) && 5225 (mAvailableOutputDevices.types() & AUDIO_DEVICE_OUT_TELEPHONY_TX) == 0) { 5226 availableDeviceTypes = availablePrimaryInputDevices() & ~AUDIO_DEVICE_BIT_IN; 5227 } 5228 5229 switch (mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]) { 5230 case AUDIO_POLICY_FORCE_BT_SCO: 5231 // if SCO device is requested but no SCO device is available, fall back to default case 5232 if (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) { 5233 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 5234 break; 5235 } 5236 // FALL THROUGH 5237 5238 default: // FORCE_NONE 5239 if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 5240 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 5241 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 5242 device = AUDIO_DEVICE_IN_USB_DEVICE; 5243 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 5244 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 5245 } 5246 break; 5247 5248 case AUDIO_POLICY_FORCE_SPEAKER: 5249 if (availableDeviceTypes & AUDIO_DEVICE_IN_BACK_MIC) { 5250 device = AUDIO_DEVICE_IN_BACK_MIC; 5251 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 5252 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 5253 } 5254 break; 5255 } 5256 break; 5257 5258 case AUDIO_SOURCE_VOICE_RECOGNITION: 5259 case AUDIO_SOURCE_HOTWORD: 5260 if (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO && 5261 availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) { 5262 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 5263 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 5264 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 5265 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 5266 device = AUDIO_DEVICE_IN_USB_DEVICE; 5267 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 5268 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 5269 } 5270 break; 5271 case AUDIO_SOURCE_CAMCORDER: 5272 if (availableDeviceTypes & AUDIO_DEVICE_IN_BACK_MIC) { 5273 device = AUDIO_DEVICE_IN_BACK_MIC; 5274 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 5275 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 5276 } 5277 break; 5278 case AUDIO_SOURCE_VOICE_DOWNLINK: 5279 case AUDIO_SOURCE_VOICE_CALL: 5280 if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) { 5281 device = AUDIO_DEVICE_IN_VOICE_CALL; 5282 } 5283 break; 5284 case AUDIO_SOURCE_REMOTE_SUBMIX: 5285 if (availableDeviceTypes & AUDIO_DEVICE_IN_REMOTE_SUBMIX) { 5286 device = AUDIO_DEVICE_IN_REMOTE_SUBMIX; 5287 } 5288 break; 5289 case AUDIO_SOURCE_FM_TUNER: 5290 if (availableDeviceTypes & AUDIO_DEVICE_IN_FM_TUNER) { 5291 device = AUDIO_DEVICE_IN_FM_TUNER; 5292 } 5293 break; 5294 default: 5295 ALOGW("getDeviceForInputSource() invalid input source %d", inputSource); 5296 break; 5297 } 5298 ALOGV("getDeviceForInputSource()input source %d, device %08x", inputSource, device); 5299 return device; 5300 } 5301 5302 bool AudioPolicyManager::isVirtualInputDevice(audio_devices_t device) 5303 { 5304 if ((device & AUDIO_DEVICE_BIT_IN) != 0) { 5305 device &= ~AUDIO_DEVICE_BIT_IN; 5306 if ((popcount(device) == 1) && ((device & ~APM_AUDIO_IN_DEVICE_VIRTUAL_ALL) == 0)) 5307 return true; 5308 } 5309 return false; 5310 } 5311 5312 bool AudioPolicyManager::deviceDistinguishesOnAddress(audio_devices_t device) { 5313 return ((device & APM_AUDIO_DEVICE_MATCH_ADDRESS_ALL & ~AUDIO_DEVICE_BIT_IN) != 0); 5314 } 5315 5316 audio_io_handle_t AudioPolicyManager::getActiveInput(bool ignoreVirtualInputs) 5317 { 5318 for (size_t i = 0; i < mInputs.size(); i++) { 5319 const sp<AudioInputDescriptor> input_descriptor = mInputs.valueAt(i); 5320 if ((input_descriptor->mRefCount > 0) 5321 && (!ignoreVirtualInputs || !isVirtualInputDevice(input_descriptor->mDevice))) { 5322 return mInputs.keyAt(i); 5323 } 5324 } 5325 return 0; 5326 } 5327 5328 uint32_t AudioPolicyManager::activeInputsCount() const 5329 { 5330 uint32_t count = 0; 5331 for (size_t i = 0; i < mInputs.size(); i++) { 5332 const sp<AudioInputDescriptor> desc = mInputs.valueAt(i); 5333 if (desc->mRefCount > 0) { 5334 count++; 5335 } 5336 } 5337 return count; 5338 } 5339 5340 5341 audio_devices_t AudioPolicyManager::getDeviceForVolume(audio_devices_t device) 5342 { 5343 if (device == AUDIO_DEVICE_NONE) { 5344 // this happens when forcing a route update and no track is active on an output. 5345 // In this case the returned category is not important. 5346 device = AUDIO_DEVICE_OUT_SPEAKER; 5347 } else if (popcount(device) > 1) { 5348 // Multiple device selection is either: 5349 // - speaker + one other device: give priority to speaker in this case. 5350 // - one A2DP device + another device: happens with duplicated output. In this case 5351 // retain the device on the A2DP output as the other must not correspond to an active 5352 // selection if not the speaker. 5353 // - HDMI-CEC system audio mode only output: give priority to available item in order. 5354 if (device & AUDIO_DEVICE_OUT_SPEAKER) { 5355 device = AUDIO_DEVICE_OUT_SPEAKER; 5356 } else if (device & AUDIO_DEVICE_OUT_HDMI_ARC) { 5357 device = AUDIO_DEVICE_OUT_HDMI_ARC; 5358 } else if (device & AUDIO_DEVICE_OUT_AUX_LINE) { 5359 device = AUDIO_DEVICE_OUT_AUX_LINE; 5360 } else if (device & AUDIO_DEVICE_OUT_SPDIF) { 5361 device = AUDIO_DEVICE_OUT_SPDIF; 5362 } else { 5363 device = (audio_devices_t)(device & AUDIO_DEVICE_OUT_ALL_A2DP); 5364 } 5365 } 5366 5367 /*SPEAKER_SAFE is an alias of SPEAKER for purposes of volume control*/ 5368 if (device == AUDIO_DEVICE_OUT_SPEAKER_SAFE) 5369 device = AUDIO_DEVICE_OUT_SPEAKER; 5370 5371 ALOGW_IF(popcount(device) != 1, 5372 "getDeviceForVolume() invalid device combination: %08x", 5373 device); 5374 5375 return device; 5376 } 5377 5378 AudioPolicyManager::device_category AudioPolicyManager::getDeviceCategory(audio_devices_t device) 5379 { 5380 switch(getDeviceForVolume(device)) { 5381 case AUDIO_DEVICE_OUT_EARPIECE: 5382 return DEVICE_CATEGORY_EARPIECE; 5383 case AUDIO_DEVICE_OUT_WIRED_HEADSET: 5384 case AUDIO_DEVICE_OUT_WIRED_HEADPHONE: 5385 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO: 5386 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET: 5387 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP: 5388 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES: 5389 return DEVICE_CATEGORY_HEADSET; 5390 case AUDIO_DEVICE_OUT_LINE: 5391 case AUDIO_DEVICE_OUT_AUX_DIGITAL: 5392 /*USB? Remote submix?*/ 5393 return DEVICE_CATEGORY_EXT_MEDIA; 5394 case AUDIO_DEVICE_OUT_SPEAKER: 5395 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT: 5396 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER: 5397 case AUDIO_DEVICE_OUT_USB_ACCESSORY: 5398 case AUDIO_DEVICE_OUT_USB_DEVICE: 5399 case AUDIO_DEVICE_OUT_REMOTE_SUBMIX: 5400 default: 5401 return DEVICE_CATEGORY_SPEAKER; 5402 } 5403 } 5404 5405 /* static */ 5406 float AudioPolicyManager::volIndexToAmpl(audio_devices_t device, const StreamDescriptor& streamDesc, 5407 int indexInUi) 5408 { 5409 device_category deviceCategory = getDeviceCategory(device); 5410 const VolumeCurvePoint *curve = streamDesc.mVolumeCurve[deviceCategory]; 5411 5412 // the volume index in the UI is relative to the min and max volume indices for this stream type 5413 int nbSteps = 1 + curve[VOLMAX].mIndex - 5414 curve[VOLMIN].mIndex; 5415 int volIdx = (nbSteps * (indexInUi - streamDesc.mIndexMin)) / 5416 (streamDesc.mIndexMax - streamDesc.mIndexMin); 5417 5418 // find what part of the curve this index volume belongs to, or if it's out of bounds 5419 int segment = 0; 5420 if (volIdx < curve[VOLMIN].mIndex) { // out of bounds 5421 return 0.0f; 5422 } else if (volIdx < curve[VOLKNEE1].mIndex) { 5423 segment = 0; 5424 } else if (volIdx < curve[VOLKNEE2].mIndex) { 5425 segment = 1; 5426 } else if (volIdx <= curve[VOLMAX].mIndex) { 5427 segment = 2; 5428 } else { // out of bounds 5429 return 1.0f; 5430 } 5431 5432 // linear interpolation in the attenuation table in dB 5433 float decibels = curve[segment].mDBAttenuation + 5434 ((float)(volIdx - curve[segment].mIndex)) * 5435 ( (curve[segment+1].mDBAttenuation - 5436 curve[segment].mDBAttenuation) / 5437 ((float)(curve[segment+1].mIndex - 5438 curve[segment].mIndex)) ); 5439 5440 float amplification = exp( decibels * 0.115129f); // exp( dB * ln(10) / 20 ) 5441 5442 ALOGVV("VOLUME vol index=[%d %d %d], dB=[%.1f %.1f %.1f] ampl=%.5f", 5443 curve[segment].mIndex, volIdx, 5444 curve[segment+1].mIndex, 5445 curve[segment].mDBAttenuation, 5446 decibels, 5447 curve[segment+1].mDBAttenuation, 5448 amplification); 5449 5450 return amplification; 5451 } 5452 5453 const AudioPolicyManager::VolumeCurvePoint 5454 AudioPolicyManager::sDefaultVolumeCurve[AudioPolicyManager::VOLCNT] = { 5455 {1, -49.5f}, {33, -33.5f}, {66, -17.0f}, {100, 0.0f} 5456 }; 5457 5458 const AudioPolicyManager::VolumeCurvePoint 5459 AudioPolicyManager::sDefaultMediaVolumeCurve[AudioPolicyManager::VOLCNT] = { 5460 {1, -58.0f}, {20, -40.0f}, {60, -17.0f}, {100, 0.0f} 5461 }; 5462 5463 const AudioPolicyManager::VolumeCurvePoint 5464 AudioPolicyManager::sExtMediaSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 5465 {1, -58.0f}, {20, -40.0f}, {60, -21.0f}, {100, -10.0f} 5466 }; 5467 5468 const AudioPolicyManager::VolumeCurvePoint 5469 AudioPolicyManager::sSpeakerMediaVolumeCurve[AudioPolicyManager::VOLCNT] = { 5470 {1, -56.0f}, {20, -34.0f}, {60, -11.0f}, {100, 0.0f} 5471 }; 5472 5473 const AudioPolicyManager::VolumeCurvePoint 5474 AudioPolicyManager::sSpeakerMediaVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 5475 {1, -55.0f}, {20, -43.0f}, {86, -12.0f}, {100, 0.0f} 5476 }; 5477 5478 const AudioPolicyManager::VolumeCurvePoint 5479 AudioPolicyManager::sSpeakerSonificationVolumeCurve[AudioPolicyManager::VOLCNT] = { 5480 {1, -29.7f}, {33, -20.1f}, {66, -10.2f}, {100, 0.0f} 5481 }; 5482 5483 const AudioPolicyManager::VolumeCurvePoint 5484 AudioPolicyManager::sSpeakerSonificationVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 5485 {1, -35.7f}, {33, -26.1f}, {66, -13.2f}, {100, 0.0f} 5486 }; 5487 5488 // AUDIO_STREAM_SYSTEM, AUDIO_STREAM_ENFORCED_AUDIBLE and AUDIO_STREAM_DTMF volume tracks 5489 // AUDIO_STREAM_RING on phones and AUDIO_STREAM_MUSIC on tablets. 5490 // AUDIO_STREAM_DTMF tracks AUDIO_STREAM_VOICE_CALL while in call (See AudioService.java). 5491 // The range is constrained between -24dB and -6dB over speaker and -30dB and -18dB over headset. 5492 5493 const AudioPolicyManager::VolumeCurvePoint 5494 AudioPolicyManager::sDefaultSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 5495 {1, -24.0f}, {33, -18.0f}, {66, -12.0f}, {100, -6.0f} 5496 }; 5497 5498 const AudioPolicyManager::VolumeCurvePoint 5499 AudioPolicyManager::sDefaultSystemVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 5500 {1, -34.0f}, {33, -24.0f}, {66, -15.0f}, {100, -6.0f} 5501 }; 5502 5503 const AudioPolicyManager::VolumeCurvePoint 5504 AudioPolicyManager::sHeadsetSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 5505 {1, -30.0f}, {33, -26.0f}, {66, -22.0f}, {100, -18.0f} 5506 }; 5507 5508 const AudioPolicyManager::VolumeCurvePoint 5509 AudioPolicyManager::sDefaultVoiceVolumeCurve[AudioPolicyManager::VOLCNT] = { 5510 {0, -42.0f}, {33, -28.0f}, {66, -14.0f}, {100, 0.0f} 5511 }; 5512 5513 const AudioPolicyManager::VolumeCurvePoint 5514 AudioPolicyManager::sSpeakerVoiceVolumeCurve[AudioPolicyManager::VOLCNT] = { 5515 {0, -24.0f}, {33, -16.0f}, {66, -8.0f}, {100, 0.0f} 5516 }; 5517 5518 const AudioPolicyManager::VolumeCurvePoint 5519 AudioPolicyManager::sLinearVolumeCurve[AudioPolicyManager::VOLCNT] = { 5520 {0, -96.0f}, {33, -68.0f}, {66, -34.0f}, {100, 0.0f} 5521 }; 5522 5523 const AudioPolicyManager::VolumeCurvePoint 5524 AudioPolicyManager::sSilentVolumeCurve[AudioPolicyManager::VOLCNT] = { 5525 {0, -96.0f}, {1, -96.0f}, {2, -96.0f}, {100, -96.0f} 5526 }; 5527 5528 const AudioPolicyManager::VolumeCurvePoint 5529 AudioPolicyManager::sFullScaleVolumeCurve[AudioPolicyManager::VOLCNT] = { 5530 {0, 0.0f}, {1, 0.0f}, {2, 0.0f}, {100, 0.0f} 5531 }; 5532 5533 const AudioPolicyManager::VolumeCurvePoint 5534 *AudioPolicyManager::sVolumeProfiles[AUDIO_STREAM_CNT] 5535 [AudioPolicyManager::DEVICE_CATEGORY_CNT] = { 5536 { // AUDIO_STREAM_VOICE_CALL 5537 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 5538 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5539 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5540 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5541 }, 5542 { // AUDIO_STREAM_SYSTEM 5543 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 5544 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5545 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5546 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5547 }, 5548 { // AUDIO_STREAM_RING 5549 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 5550 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5551 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5552 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5553 }, 5554 { // AUDIO_STREAM_MUSIC 5555 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 5556 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5557 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5558 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5559 }, 5560 { // AUDIO_STREAM_ALARM 5561 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 5562 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5563 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5564 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5565 }, 5566 { // AUDIO_STREAM_NOTIFICATION 5567 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 5568 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5569 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5570 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5571 }, 5572 { // AUDIO_STREAM_BLUETOOTH_SCO 5573 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 5574 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5575 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5576 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5577 }, 5578 { // AUDIO_STREAM_ENFORCED_AUDIBLE 5579 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 5580 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5581 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5582 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5583 }, 5584 { // AUDIO_STREAM_DTMF 5585 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 5586 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5587 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5588 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5589 }, 5590 { // AUDIO_STREAM_TTS 5591 // "Transmitted Through Speaker": always silent except on DEVICE_CATEGORY_SPEAKER 5592 sSilentVolumeCurve, // DEVICE_CATEGORY_HEADSET 5593 sLinearVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5594 sSilentVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5595 sSilentVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5596 }, 5597 { // AUDIO_STREAM_ACCESSIBILITY 5598 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 5599 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5600 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5601 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5602 }, 5603 { // AUDIO_STREAM_REROUTING 5604 sFullScaleVolumeCurve, // DEVICE_CATEGORY_HEADSET 5605 sFullScaleVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5606 sFullScaleVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5607 sFullScaleVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5608 }, 5609 { // AUDIO_STREAM_PATCH 5610 sFullScaleVolumeCurve, // DEVICE_CATEGORY_HEADSET 5611 sFullScaleVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5612 sFullScaleVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5613 sFullScaleVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5614 }, 5615 }; 5616 5617 void AudioPolicyManager::initializeVolumeCurves() 5618 { 5619 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 5620 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 5621 mStreams[i].mVolumeCurve[j] = 5622 sVolumeProfiles[i][j]; 5623 } 5624 } 5625 5626 // Check availability of DRC on speaker path: if available, override some of the speaker curves 5627 if (mSpeakerDrcEnabled) { 5628 mStreams[AUDIO_STREAM_SYSTEM].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5629 sDefaultSystemVolumeCurveDrc; 5630 mStreams[AUDIO_STREAM_RING].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5631 sSpeakerSonificationVolumeCurveDrc; 5632 mStreams[AUDIO_STREAM_ALARM].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5633 sSpeakerSonificationVolumeCurveDrc; 5634 mStreams[AUDIO_STREAM_NOTIFICATION].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5635 sSpeakerSonificationVolumeCurveDrc; 5636 mStreams[AUDIO_STREAM_MUSIC].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5637 sSpeakerMediaVolumeCurveDrc; 5638 mStreams[AUDIO_STREAM_ACCESSIBILITY].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5639 sSpeakerMediaVolumeCurveDrc; 5640 } 5641 } 5642 5643 float AudioPolicyManager::computeVolume(audio_stream_type_t stream, 5644 int index, 5645 audio_io_handle_t output, 5646 audio_devices_t device) 5647 { 5648 float volume = 1.0; 5649 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 5650 StreamDescriptor &streamDesc = mStreams[stream]; 5651 5652 if (device == AUDIO_DEVICE_NONE) { 5653 device = outputDesc->device(); 5654 } 5655 5656 volume = volIndexToAmpl(device, streamDesc, index); 5657 5658 // if a headset is connected, apply the following rules to ring tones and notifications 5659 // to avoid sound level bursts in user's ears: 5660 // - always attenuate ring tones and notifications volume by 6dB 5661 // - if music is playing, always limit the volume to current music volume, 5662 // with a minimum threshold at -36dB so that notification is always perceived. 5663 const routing_strategy stream_strategy = getStrategy(stream); 5664 if ((device & (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP | 5665 AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES | 5666 AUDIO_DEVICE_OUT_WIRED_HEADSET | 5667 AUDIO_DEVICE_OUT_WIRED_HEADPHONE)) && 5668 ((stream_strategy == STRATEGY_SONIFICATION) 5669 || (stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL) 5670 || (stream == AUDIO_STREAM_SYSTEM) 5671 || ((stream_strategy == STRATEGY_ENFORCED_AUDIBLE) && 5672 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_NONE))) && 5673 streamDesc.mCanBeMuted) { 5674 volume *= SONIFICATION_HEADSET_VOLUME_FACTOR; 5675 // when the phone is ringing we must consider that music could have been paused just before 5676 // by the music application and behave as if music was active if the last music track was 5677 // just stopped 5678 if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY) || 5679 mLimitRingtoneVolume) { 5680 audio_devices_t musicDevice = getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/); 5681 float musicVol = computeVolume(AUDIO_STREAM_MUSIC, 5682 mStreams[AUDIO_STREAM_MUSIC].getVolumeIndex(musicDevice), 5683 output, 5684 musicDevice); 5685 float minVol = (musicVol > SONIFICATION_HEADSET_VOLUME_MIN) ? 5686 musicVol : SONIFICATION_HEADSET_VOLUME_MIN; 5687 if (volume > minVol) { 5688 volume = minVol; 5689 ALOGV("computeVolume limiting volume to %f musicVol %f", minVol, musicVol); 5690 } 5691 } 5692 } 5693 5694 return volume; 5695 } 5696 5697 status_t AudioPolicyManager::checkAndSetVolume(audio_stream_type_t stream, 5698 int index, 5699 audio_io_handle_t output, 5700 audio_devices_t device, 5701 int delayMs, 5702 bool force) 5703 { 5704 5705 // do not change actual stream volume if the stream is muted 5706 if (mOutputs.valueFor(output)->mMuteCount[stream] != 0) { 5707 ALOGVV("checkAndSetVolume() stream %d muted count %d", 5708 stream, mOutputs.valueFor(output)->mMuteCount[stream]); 5709 return NO_ERROR; 5710 } 5711 5712 // do not change in call volume if bluetooth is connected and vice versa 5713 if ((stream == AUDIO_STREAM_VOICE_CALL && 5714 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO) || 5715 (stream == AUDIO_STREAM_BLUETOOTH_SCO && 5716 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] != AUDIO_POLICY_FORCE_BT_SCO)) { 5717 ALOGV("checkAndSetVolume() cannot set stream %d volume with force use = %d for comm", 5718 stream, mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]); 5719 return INVALID_OPERATION; 5720 } 5721 5722 float volume = computeVolume(stream, index, output, device); 5723 // unit gain if rerouting to external policy 5724 if (device == AUDIO_DEVICE_OUT_REMOTE_SUBMIX) { 5725 ssize_t index = mOutputs.indexOfKey(output); 5726 if (index >= 0) { 5727 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 5728 if (outputDesc->mPolicyMix != NULL) { 5729 ALOGV("max gain when rerouting for output=%d", output); 5730 volume = 1.0f; 5731 } 5732 } 5733 5734 } 5735 // We actually change the volume if: 5736 // - the float value returned by computeVolume() changed 5737 // - the force flag is set 5738 if (volume != mOutputs.valueFor(output)->mCurVolume[stream] || 5739 force) { 5740 mOutputs.valueFor(output)->mCurVolume[stream] = volume; 5741 ALOGVV("checkAndSetVolume() for output %d stream %d, volume %f, delay %d", output, stream, volume, delayMs); 5742 // Force VOICE_CALL to track BLUETOOTH_SCO stream volume when bluetooth audio is 5743 // enabled 5744 if (stream == AUDIO_STREAM_BLUETOOTH_SCO) { 5745 mpClientInterface->setStreamVolume(AUDIO_STREAM_VOICE_CALL, volume, output, delayMs); 5746 } 5747 mpClientInterface->setStreamVolume(stream, volume, output, delayMs); 5748 } 5749 5750 if (stream == AUDIO_STREAM_VOICE_CALL || 5751 stream == AUDIO_STREAM_BLUETOOTH_SCO) { 5752 float voiceVolume; 5753 // Force voice volume to max for bluetooth SCO as volume is managed by the headset 5754 if (stream == AUDIO_STREAM_VOICE_CALL) { 5755 voiceVolume = (float)index/(float)mStreams[stream].mIndexMax; 5756 } else { 5757 voiceVolume = 1.0; 5758 } 5759 5760 if (voiceVolume != mLastVoiceVolume && output == mPrimaryOutput) { 5761 mpClientInterface->setVoiceVolume(voiceVolume, delayMs); 5762 mLastVoiceVolume = voiceVolume; 5763 } 5764 } 5765 5766 return NO_ERROR; 5767 } 5768 5769 void AudioPolicyManager::applyStreamVolumes(audio_io_handle_t output, 5770 audio_devices_t device, 5771 int delayMs, 5772 bool force) 5773 { 5774 ALOGVV("applyStreamVolumes() for output %d and device %x", output, device); 5775 5776 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 5777 if (stream == AUDIO_STREAM_PATCH) { 5778 continue; 5779 } 5780 checkAndSetVolume((audio_stream_type_t)stream, 5781 mStreams[stream].getVolumeIndex(device), 5782 output, 5783 device, 5784 delayMs, 5785 force); 5786 } 5787 } 5788 5789 void AudioPolicyManager::setStrategyMute(routing_strategy strategy, 5790 bool on, 5791 audio_io_handle_t output, 5792 int delayMs, 5793 audio_devices_t device) 5794 { 5795 ALOGVV("setStrategyMute() strategy %d, mute %d, output %d", strategy, on, output); 5796 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 5797 if (stream == AUDIO_STREAM_PATCH) { 5798 continue; 5799 } 5800 if (getStrategy((audio_stream_type_t)stream) == strategy) { 5801 setStreamMute((audio_stream_type_t)stream, on, output, delayMs, device); 5802 } 5803 } 5804 } 5805 5806 void AudioPolicyManager::setStreamMute(audio_stream_type_t stream, 5807 bool on, 5808 audio_io_handle_t output, 5809 int delayMs, 5810 audio_devices_t device) 5811 { 5812 StreamDescriptor &streamDesc = mStreams[stream]; 5813 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 5814 if (device == AUDIO_DEVICE_NONE) { 5815 device = outputDesc->device(); 5816 } 5817 5818 ALOGVV("setStreamMute() stream %d, mute %d, output %d, mMuteCount %d device %04x", 5819 stream, on, output, outputDesc->mMuteCount[stream], device); 5820 5821 if (on) { 5822 if (outputDesc->mMuteCount[stream] == 0) { 5823 if (streamDesc.mCanBeMuted && 5824 ((stream != AUDIO_STREAM_ENFORCED_AUDIBLE) || 5825 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_NONE))) { 5826 checkAndSetVolume(stream, 0, output, device, delayMs); 5827 } 5828 } 5829 // increment mMuteCount after calling checkAndSetVolume() so that volume change is not ignored 5830 outputDesc->mMuteCount[stream]++; 5831 } else { 5832 if (outputDesc->mMuteCount[stream] == 0) { 5833 ALOGV("setStreamMute() unmuting non muted stream!"); 5834 return; 5835 } 5836 if (--outputDesc->mMuteCount[stream] == 0) { 5837 checkAndSetVolume(stream, 5838 streamDesc.getVolumeIndex(device), 5839 output, 5840 device, 5841 delayMs); 5842 } 5843 } 5844 } 5845 5846 void AudioPolicyManager::handleIncallSonification(audio_stream_type_t stream, 5847 bool starting, bool stateChange) 5848 { 5849 // if the stream pertains to sonification strategy and we are in call we must 5850 // mute the stream if it is low visibility. If it is high visibility, we must play a tone 5851 // in the device used for phone strategy and play the tone if the selected device does not 5852 // interfere with the device used for phone strategy 5853 // if stateChange is true, we are called from setPhoneState() and we must mute or unmute as 5854 // many times as there are active tracks on the output 5855 const routing_strategy stream_strategy = getStrategy(stream); 5856 if ((stream_strategy == STRATEGY_SONIFICATION) || 5857 ((stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL))) { 5858 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 5859 ALOGV("handleIncallSonification() stream %d starting %d device %x stateChange %d", 5860 stream, starting, outputDesc->mDevice, stateChange); 5861 if (outputDesc->mRefCount[stream]) { 5862 int muteCount = 1; 5863 if (stateChange) { 5864 muteCount = outputDesc->mRefCount[stream]; 5865 } 5866 if (audio_is_low_visibility(stream)) { 5867 ALOGV("handleIncallSonification() low visibility, muteCount %d", muteCount); 5868 for (int i = 0; i < muteCount; i++) { 5869 setStreamMute(stream, starting, mPrimaryOutput); 5870 } 5871 } else { 5872 ALOGV("handleIncallSonification() high visibility"); 5873 if (outputDesc->device() & 5874 getDeviceForStrategy(STRATEGY_PHONE, true /*fromCache*/)) { 5875 ALOGV("handleIncallSonification() high visibility muted, muteCount %d", muteCount); 5876 for (int i = 0; i < muteCount; i++) { 5877 setStreamMute(stream, starting, mPrimaryOutput); 5878 } 5879 } 5880 if (starting) { 5881 mpClientInterface->startTone(AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION, 5882 AUDIO_STREAM_VOICE_CALL); 5883 } else { 5884 mpClientInterface->stopTone(); 5885 } 5886 } 5887 } 5888 } 5889 } 5890 5891 bool AudioPolicyManager::isInCall() 5892 { 5893 return isStateInCall(mPhoneState); 5894 } 5895 5896 bool AudioPolicyManager::isStateInCall(int state) { 5897 return ((state == AUDIO_MODE_IN_CALL) || 5898 (state == AUDIO_MODE_IN_COMMUNICATION)); 5899 } 5900 5901 uint32_t AudioPolicyManager::getMaxEffectsCpuLoad() 5902 { 5903 return MAX_EFFECTS_CPU_LOAD; 5904 } 5905 5906 uint32_t AudioPolicyManager::getMaxEffectsMemory() 5907 { 5908 return MAX_EFFECTS_MEMORY; 5909 } 5910 5911 5912 // --- AudioOutputDescriptor class implementation 5913 5914 AudioPolicyManager::AudioOutputDescriptor::AudioOutputDescriptor( 5915 const sp<IOProfile>& profile) 5916 : mId(0), mIoHandle(0), mLatency(0), 5917 mFlags((audio_output_flags_t)0), mDevice(AUDIO_DEVICE_NONE), mPolicyMix(NULL), 5918 mPatchHandle(0), 5919 mOutput1(0), mOutput2(0), mProfile(profile), mDirectOpenCount(0) 5920 { 5921 // clear usage count for all stream types 5922 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 5923 mRefCount[i] = 0; 5924 mCurVolume[i] = -1.0; 5925 mMuteCount[i] = 0; 5926 mStopTime[i] = 0; 5927 } 5928 for (int i = 0; i < NUM_STRATEGIES; i++) { 5929 mStrategyMutedByDevice[i] = false; 5930 } 5931 if (profile != NULL) { 5932 mFlags = (audio_output_flags_t)profile->mFlags; 5933 mSamplingRate = profile->pickSamplingRate(); 5934 mFormat = profile->pickFormat(); 5935 mChannelMask = profile->pickChannelMask(); 5936 if (profile->mGains.size() > 0) { 5937 profile->mGains[0]->getDefaultConfig(&mGain); 5938 } 5939 } 5940 } 5941 5942 audio_devices_t AudioPolicyManager::AudioOutputDescriptor::device() const 5943 { 5944 if (isDuplicated()) { 5945 return (audio_devices_t)(mOutput1->mDevice | mOutput2->mDevice); 5946 } else { 5947 return mDevice; 5948 } 5949 } 5950 5951 uint32_t AudioPolicyManager::AudioOutputDescriptor::latency() 5952 { 5953 if (isDuplicated()) { 5954 return (mOutput1->mLatency > mOutput2->mLatency) ? mOutput1->mLatency : mOutput2->mLatency; 5955 } else { 5956 return mLatency; 5957 } 5958 } 5959 5960 bool AudioPolicyManager::AudioOutputDescriptor::sharesHwModuleWith( 5961 const sp<AudioOutputDescriptor> outputDesc) 5962 { 5963 if (isDuplicated()) { 5964 return mOutput1->sharesHwModuleWith(outputDesc) || mOutput2->sharesHwModuleWith(outputDesc); 5965 } else if (outputDesc->isDuplicated()){ 5966 return sharesHwModuleWith(outputDesc->mOutput1) || sharesHwModuleWith(outputDesc->mOutput2); 5967 } else { 5968 return (mProfile->mModule == outputDesc->mProfile->mModule); 5969 } 5970 } 5971 5972 void AudioPolicyManager::AudioOutputDescriptor::changeRefCount(audio_stream_type_t stream, 5973 int delta) 5974 { 5975 // forward usage count change to attached outputs 5976 if (isDuplicated()) { 5977 mOutput1->changeRefCount(stream, delta); 5978 mOutput2->changeRefCount(stream, delta); 5979 } 5980 if ((delta + (int)mRefCount[stream]) < 0) { 5981 ALOGW("changeRefCount() invalid delta %d for stream %d, refCount %d", 5982 delta, stream, mRefCount[stream]); 5983 mRefCount[stream] = 0; 5984 return; 5985 } 5986 mRefCount[stream] += delta; 5987 ALOGV("changeRefCount() stream %d, count %d", stream, mRefCount[stream]); 5988 } 5989 5990 audio_devices_t AudioPolicyManager::AudioOutputDescriptor::supportedDevices() 5991 { 5992 if (isDuplicated()) { 5993 return (audio_devices_t)(mOutput1->supportedDevices() | mOutput2->supportedDevices()); 5994 } else { 5995 return mProfile->mSupportedDevices.types() ; 5996 } 5997 } 5998 5999 bool AudioPolicyManager::AudioOutputDescriptor::isActive(uint32_t inPastMs) const 6000 { 6001 return isStrategyActive(NUM_STRATEGIES, inPastMs); 6002 } 6003 6004 bool AudioPolicyManager::AudioOutputDescriptor::isStrategyActive(routing_strategy strategy, 6005 uint32_t inPastMs, 6006 nsecs_t sysTime) const 6007 { 6008 if ((sysTime == 0) && (inPastMs != 0)) { 6009 sysTime = systemTime(); 6010 } 6011 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 6012 if (i == AUDIO_STREAM_PATCH) { 6013 continue; 6014 } 6015 if (((getStrategy((audio_stream_type_t)i) == strategy) || 6016 (NUM_STRATEGIES == strategy)) && 6017 isStreamActive((audio_stream_type_t)i, inPastMs, sysTime)) { 6018 return true; 6019 } 6020 } 6021 return false; 6022 } 6023 6024 bool AudioPolicyManager::AudioOutputDescriptor::isStreamActive(audio_stream_type_t stream, 6025 uint32_t inPastMs, 6026 nsecs_t sysTime) const 6027 { 6028 if (mRefCount[stream] != 0) { 6029 return true; 6030 } 6031 if (inPastMs == 0) { 6032 return false; 6033 } 6034 if (sysTime == 0) { 6035 sysTime = systemTime(); 6036 } 6037 if (ns2ms(sysTime - mStopTime[stream]) < inPastMs) { 6038 return true; 6039 } 6040 return false; 6041 } 6042 6043 void AudioPolicyManager::AudioOutputDescriptor::toAudioPortConfig( 6044 struct audio_port_config *dstConfig, 6045 const struct audio_port_config *srcConfig) const 6046 { 6047 ALOG_ASSERT(!isDuplicated(), "toAudioPortConfig() called on duplicated output %d", mIoHandle); 6048 6049 dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK| 6050 AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN; 6051 if (srcConfig != NULL) { 6052 dstConfig->config_mask |= srcConfig->config_mask; 6053 } 6054 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 6055 6056 dstConfig->id = mId; 6057 dstConfig->role = AUDIO_PORT_ROLE_SOURCE; 6058 dstConfig->type = AUDIO_PORT_TYPE_MIX; 6059 dstConfig->ext.mix.hw_module = mProfile->mModule->mHandle; 6060 dstConfig->ext.mix.handle = mIoHandle; 6061 dstConfig->ext.mix.usecase.stream = AUDIO_STREAM_DEFAULT; 6062 } 6063 6064 void AudioPolicyManager::AudioOutputDescriptor::toAudioPort( 6065 struct audio_port *port) const 6066 { 6067 ALOG_ASSERT(!isDuplicated(), "toAudioPort() called on duplicated output %d", mIoHandle); 6068 mProfile->toAudioPort(port); 6069 port->id = mId; 6070 toAudioPortConfig(&port->active_config); 6071 port->ext.mix.hw_module = mProfile->mModule->mHandle; 6072 port->ext.mix.handle = mIoHandle; 6073 port->ext.mix.latency_class = 6074 mFlags & AUDIO_OUTPUT_FLAG_FAST ? AUDIO_LATENCY_LOW : AUDIO_LATENCY_NORMAL; 6075 } 6076 6077 status_t AudioPolicyManager::AudioOutputDescriptor::dump(int fd) 6078 { 6079 const size_t SIZE = 256; 6080 char buffer[SIZE]; 6081 String8 result; 6082 6083 snprintf(buffer, SIZE, " ID: %d\n", mId); 6084 result.append(buffer); 6085 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 6086 result.append(buffer); 6087 snprintf(buffer, SIZE, " Format: %08x\n", mFormat); 6088 result.append(buffer); 6089 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 6090 result.append(buffer); 6091 snprintf(buffer, SIZE, " Latency: %d\n", mLatency); 6092 result.append(buffer); 6093 snprintf(buffer, SIZE, " Flags %08x\n", mFlags); 6094 result.append(buffer); 6095 snprintf(buffer, SIZE, " Devices %08x\n", device()); 6096 result.append(buffer); 6097 snprintf(buffer, SIZE, " Stream volume refCount muteCount\n"); 6098 result.append(buffer); 6099 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 6100 snprintf(buffer, SIZE, " %02d %.03f %02d %02d\n", 6101 i, mCurVolume[i], mRefCount[i], mMuteCount[i]); 6102 result.append(buffer); 6103 } 6104 write(fd, result.string(), result.size()); 6105 6106 return NO_ERROR; 6107 } 6108 6109 // --- AudioInputDescriptor class implementation 6110 6111 AudioPolicyManager::AudioInputDescriptor::AudioInputDescriptor(const sp<IOProfile>& profile) 6112 : mId(0), mIoHandle(0), 6113 mDevice(AUDIO_DEVICE_NONE), mPolicyMix(NULL), mPatchHandle(0), mRefCount(0), 6114 mInputSource(AUDIO_SOURCE_DEFAULT), mProfile(profile), mIsSoundTrigger(false) 6115 { 6116 if (profile != NULL) { 6117 mSamplingRate = profile->pickSamplingRate(); 6118 mFormat = profile->pickFormat(); 6119 mChannelMask = profile->pickChannelMask(); 6120 if (profile->mGains.size() > 0) { 6121 profile->mGains[0]->getDefaultConfig(&mGain); 6122 } 6123 } 6124 } 6125 6126 void AudioPolicyManager::AudioInputDescriptor::toAudioPortConfig( 6127 struct audio_port_config *dstConfig, 6128 const struct audio_port_config *srcConfig) const 6129 { 6130 ALOG_ASSERT(mProfile != 0, 6131 "toAudioPortConfig() called on input with null profile %d", mIoHandle); 6132 dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK| 6133 AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN; 6134 if (srcConfig != NULL) { 6135 dstConfig->config_mask |= srcConfig->config_mask; 6136 } 6137 6138 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 6139 6140 dstConfig->id = mId; 6141 dstConfig->role = AUDIO_PORT_ROLE_SINK; 6142 dstConfig->type = AUDIO_PORT_TYPE_MIX; 6143 dstConfig->ext.mix.hw_module = mProfile->mModule->mHandle; 6144 dstConfig->ext.mix.handle = mIoHandle; 6145 dstConfig->ext.mix.usecase.source = mInputSource; 6146 } 6147 6148 void AudioPolicyManager::AudioInputDescriptor::toAudioPort( 6149 struct audio_port *port) const 6150 { 6151 ALOG_ASSERT(mProfile != 0, "toAudioPort() called on input with null profile %d", mIoHandle); 6152 6153 mProfile->toAudioPort(port); 6154 port->id = mId; 6155 toAudioPortConfig(&port->active_config); 6156 port->ext.mix.hw_module = mProfile->mModule->mHandle; 6157 port->ext.mix.handle = mIoHandle; 6158 port->ext.mix.latency_class = AUDIO_LATENCY_NORMAL; 6159 } 6160 6161 status_t AudioPolicyManager::AudioInputDescriptor::dump(int fd) 6162 { 6163 const size_t SIZE = 256; 6164 char buffer[SIZE]; 6165 String8 result; 6166 6167 snprintf(buffer, SIZE, " ID: %d\n", mId); 6168 result.append(buffer); 6169 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 6170 result.append(buffer); 6171 snprintf(buffer, SIZE, " Format: %d\n", mFormat); 6172 result.append(buffer); 6173 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 6174 result.append(buffer); 6175 snprintf(buffer, SIZE, " Devices %08x\n", mDevice); 6176 result.append(buffer); 6177 snprintf(buffer, SIZE, " Ref Count %d\n", mRefCount); 6178 result.append(buffer); 6179 snprintf(buffer, SIZE, " Open Ref Count %d\n", mOpenRefCount); 6180 result.append(buffer); 6181 6182 write(fd, result.string(), result.size()); 6183 6184 return NO_ERROR; 6185 } 6186 6187 // --- StreamDescriptor class implementation 6188 6189 AudioPolicyManager::StreamDescriptor::StreamDescriptor() 6190 : mIndexMin(0), mIndexMax(1), mCanBeMuted(true) 6191 { 6192 mIndexCur.add(AUDIO_DEVICE_OUT_DEFAULT, 0); 6193 } 6194 6195 int AudioPolicyManager::StreamDescriptor::getVolumeIndex(audio_devices_t device) 6196 { 6197 device = AudioPolicyManager::getDeviceForVolume(device); 6198 // there is always a valid entry for AUDIO_DEVICE_OUT_DEFAULT 6199 if (mIndexCur.indexOfKey(device) < 0) { 6200 device = AUDIO_DEVICE_OUT_DEFAULT; 6201 } 6202 return mIndexCur.valueFor(device); 6203 } 6204 6205 void AudioPolicyManager::StreamDescriptor::dump(int fd) 6206 { 6207 const size_t SIZE = 256; 6208 char buffer[SIZE]; 6209 String8 result; 6210 6211 snprintf(buffer, SIZE, "%s %02d %02d ", 6212 mCanBeMuted ? "true " : "false", mIndexMin, mIndexMax); 6213 result.append(buffer); 6214 for (size_t i = 0; i < mIndexCur.size(); i++) { 6215 snprintf(buffer, SIZE, "%04x : %02d, ", 6216 mIndexCur.keyAt(i), 6217 mIndexCur.valueAt(i)); 6218 result.append(buffer); 6219 } 6220 result.append("\n"); 6221 6222 write(fd, result.string(), result.size()); 6223 } 6224 6225 // --- EffectDescriptor class implementation 6226 6227 status_t AudioPolicyManager::EffectDescriptor::dump(int fd) 6228 { 6229 const size_t SIZE = 256; 6230 char buffer[SIZE]; 6231 String8 result; 6232 6233 snprintf(buffer, SIZE, " I/O: %d\n", mIo); 6234 result.append(buffer); 6235 snprintf(buffer, SIZE, " Strategy: %d\n", mStrategy); 6236 result.append(buffer); 6237 snprintf(buffer, SIZE, " Session: %d\n", mSession); 6238 result.append(buffer); 6239 snprintf(buffer, SIZE, " Name: %s\n", mDesc.name); 6240 result.append(buffer); 6241 snprintf(buffer, SIZE, " %s\n", mEnabled ? "Enabled" : "Disabled"); 6242 result.append(buffer); 6243 write(fd, result.string(), result.size()); 6244 6245 return NO_ERROR; 6246 } 6247 6248 // --- HwModule class implementation 6249 6250 AudioPolicyManager::HwModule::HwModule(const char *name) 6251 : mName(strndup(name, AUDIO_HARDWARE_MODULE_ID_MAX_LEN)), 6252 mHalVersion(AUDIO_DEVICE_API_VERSION_MIN), mHandle(0) 6253 { 6254 } 6255 6256 AudioPolicyManager::HwModule::~HwModule() 6257 { 6258 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 6259 mOutputProfiles[i]->mSupportedDevices.clear(); 6260 } 6261 for (size_t i = 0; i < mInputProfiles.size(); i++) { 6262 mInputProfiles[i]->mSupportedDevices.clear(); 6263 } 6264 free((void *)mName); 6265 } 6266 6267 status_t AudioPolicyManager::HwModule::loadInput(cnode *root) 6268 { 6269 cnode *node = root->first_child; 6270 6271 sp<IOProfile> profile = new IOProfile(String8(root->name), AUDIO_PORT_ROLE_SINK, this); 6272 6273 while (node) { 6274 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) { 6275 profile->loadSamplingRates((char *)node->value); 6276 } else if (strcmp(node->name, FORMATS_TAG) == 0) { 6277 profile->loadFormats((char *)node->value); 6278 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 6279 profile->loadInChannels((char *)node->value); 6280 } else if (strcmp(node->name, DEVICES_TAG) == 0) { 6281 profile->mSupportedDevices.loadDevicesFromName((char *)node->value, 6282 mDeclaredDevices); 6283 } else if (strcmp(node->name, FLAGS_TAG) == 0) { 6284 profile->mFlags = parseInputFlagNames((char *)node->value); 6285 } else if (strcmp(node->name, GAINS_TAG) == 0) { 6286 profile->loadGains(node); 6287 } 6288 node = node->next; 6289 } 6290 ALOGW_IF(profile->mSupportedDevices.isEmpty(), 6291 "loadInput() invalid supported devices"); 6292 ALOGW_IF(profile->mChannelMasks.size() == 0, 6293 "loadInput() invalid supported channel masks"); 6294 ALOGW_IF(profile->mSamplingRates.size() == 0, 6295 "loadInput() invalid supported sampling rates"); 6296 ALOGW_IF(profile->mFormats.size() == 0, 6297 "loadInput() invalid supported formats"); 6298 if (!profile->mSupportedDevices.isEmpty() && 6299 (profile->mChannelMasks.size() != 0) && 6300 (profile->mSamplingRates.size() != 0) && 6301 (profile->mFormats.size() != 0)) { 6302 6303 ALOGV("loadInput() adding input Supported Devices %04x", 6304 profile->mSupportedDevices.types()); 6305 6306 mInputProfiles.add(profile); 6307 return NO_ERROR; 6308 } else { 6309 return BAD_VALUE; 6310 } 6311 } 6312 6313 status_t AudioPolicyManager::HwModule::loadOutput(cnode *root) 6314 { 6315 cnode *node = root->first_child; 6316 6317 sp<IOProfile> profile = new IOProfile(String8(root->name), AUDIO_PORT_ROLE_SOURCE, this); 6318 6319 while (node) { 6320 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) { 6321 profile->loadSamplingRates((char *)node->value); 6322 } else if (strcmp(node->name, FORMATS_TAG) == 0) { 6323 profile->loadFormats((char *)node->value); 6324 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 6325 profile->loadOutChannels((char *)node->value); 6326 } else if (strcmp(node->name, DEVICES_TAG) == 0) { 6327 profile->mSupportedDevices.loadDevicesFromName((char *)node->value, 6328 mDeclaredDevices); 6329 } else if (strcmp(node->name, FLAGS_TAG) == 0) { 6330 profile->mFlags = parseOutputFlagNames((char *)node->value); 6331 } else if (strcmp(node->name, GAINS_TAG) == 0) { 6332 profile->loadGains(node); 6333 } 6334 node = node->next; 6335 } 6336 ALOGW_IF(profile->mSupportedDevices.isEmpty(), 6337 "loadOutput() invalid supported devices"); 6338 ALOGW_IF(profile->mChannelMasks.size() == 0, 6339 "loadOutput() invalid supported channel masks"); 6340 ALOGW_IF(profile->mSamplingRates.size() == 0, 6341 "loadOutput() invalid supported sampling rates"); 6342 ALOGW_IF(profile->mFormats.size() == 0, 6343 "loadOutput() invalid supported formats"); 6344 if (!profile->mSupportedDevices.isEmpty() && 6345 (profile->mChannelMasks.size() != 0) && 6346 (profile->mSamplingRates.size() != 0) && 6347 (profile->mFormats.size() != 0)) { 6348 6349 ALOGV("loadOutput() adding output Supported Devices %04x, mFlags %04x", 6350 profile->mSupportedDevices.types(), profile->mFlags); 6351 6352 mOutputProfiles.add(profile); 6353 return NO_ERROR; 6354 } else { 6355 return BAD_VALUE; 6356 } 6357 } 6358 6359 status_t AudioPolicyManager::HwModule::loadDevice(cnode *root) 6360 { 6361 cnode *node = root->first_child; 6362 6363 audio_devices_t type = AUDIO_DEVICE_NONE; 6364 while (node) { 6365 if (strcmp(node->name, DEVICE_TYPE) == 0) { 6366 type = parseDeviceNames((char *)node->value); 6367 break; 6368 } 6369 node = node->next; 6370 } 6371 if (type == AUDIO_DEVICE_NONE || 6372 (!audio_is_input_device(type) && !audio_is_output_device(type))) { 6373 ALOGW("loadDevice() bad type %08x", type); 6374 return BAD_VALUE; 6375 } 6376 sp<DeviceDescriptor> deviceDesc = new DeviceDescriptor(String8(root->name), type); 6377 deviceDesc->mModule = this; 6378 6379 node = root->first_child; 6380 while (node) { 6381 if (strcmp(node->name, DEVICE_ADDRESS) == 0) { 6382 deviceDesc->mAddress = String8((char *)node->value); 6383 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 6384 if (audio_is_input_device(type)) { 6385 deviceDesc->loadInChannels((char *)node->value); 6386 } else { 6387 deviceDesc->loadOutChannels((char *)node->value); 6388 } 6389 } else if (strcmp(node->name, GAINS_TAG) == 0) { 6390 deviceDesc->loadGains(node); 6391 } 6392 node = node->next; 6393 } 6394 6395 ALOGV("loadDevice() adding device name %s type %08x address %s", 6396 deviceDesc->mName.string(), type, deviceDesc->mAddress.string()); 6397 6398 mDeclaredDevices.add(deviceDesc); 6399 6400 return NO_ERROR; 6401 } 6402 6403 status_t AudioPolicyManager::HwModule::addOutputProfile(String8 name, const audio_config_t *config, 6404 audio_devices_t device, String8 address) 6405 { 6406 sp<IOProfile> profile = new IOProfile(name, AUDIO_PORT_ROLE_SOURCE, this); 6407 6408 profile->mSamplingRates.add(config->sample_rate); 6409 profile->mChannelMasks.add(config->channel_mask); 6410 profile->mFormats.add(config->format); 6411 6412 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 6413 devDesc->mAddress = address; 6414 profile->mSupportedDevices.add(devDesc); 6415 6416 mOutputProfiles.add(profile); 6417 6418 return NO_ERROR; 6419 } 6420 6421 status_t AudioPolicyManager::HwModule::removeOutputProfile(String8 name) 6422 { 6423 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 6424 if (mOutputProfiles[i]->mName == name) { 6425 mOutputProfiles.removeAt(i); 6426 break; 6427 } 6428 } 6429 6430 return NO_ERROR; 6431 } 6432 6433 status_t AudioPolicyManager::HwModule::addInputProfile(String8 name, const audio_config_t *config, 6434 audio_devices_t device, String8 address) 6435 { 6436 sp<IOProfile> profile = new IOProfile(name, AUDIO_PORT_ROLE_SINK, this); 6437 6438 profile->mSamplingRates.add(config->sample_rate); 6439 profile->mChannelMasks.add(config->channel_mask); 6440 profile->mFormats.add(config->format); 6441 6442 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 6443 devDesc->mAddress = address; 6444 profile->mSupportedDevices.add(devDesc); 6445 6446 ALOGV("addInputProfile() name %s rate %d mask 0x08", name.string(), config->sample_rate, config->channel_mask); 6447 6448 mInputProfiles.add(profile); 6449 6450 return NO_ERROR; 6451 } 6452 6453 status_t AudioPolicyManager::HwModule::removeInputProfile(String8 name) 6454 { 6455 for (size_t i = 0; i < mInputProfiles.size(); i++) { 6456 if (mInputProfiles[i]->mName == name) { 6457 mInputProfiles.removeAt(i); 6458 break; 6459 } 6460 } 6461 6462 return NO_ERROR; 6463 } 6464 6465 6466 void AudioPolicyManager::HwModule::dump(int fd) 6467 { 6468 const size_t SIZE = 256; 6469 char buffer[SIZE]; 6470 String8 result; 6471 6472 snprintf(buffer, SIZE, " - name: %s\n", mName); 6473 result.append(buffer); 6474 snprintf(buffer, SIZE, " - handle: %d\n", mHandle); 6475 result.append(buffer); 6476 snprintf(buffer, SIZE, " - version: %u.%u\n", mHalVersion >> 8, mHalVersion & 0xFF); 6477 result.append(buffer); 6478 write(fd, result.string(), result.size()); 6479 if (mOutputProfiles.size()) { 6480 write(fd, " - outputs:\n", strlen(" - outputs:\n")); 6481 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 6482 snprintf(buffer, SIZE, " output %zu:\n", i); 6483 write(fd, buffer, strlen(buffer)); 6484 mOutputProfiles[i]->dump(fd); 6485 } 6486 } 6487 if (mInputProfiles.size()) { 6488 write(fd, " - inputs:\n", strlen(" - inputs:\n")); 6489 for (size_t i = 0; i < mInputProfiles.size(); i++) { 6490 snprintf(buffer, SIZE, " input %zu:\n", i); 6491 write(fd, buffer, strlen(buffer)); 6492 mInputProfiles[i]->dump(fd); 6493 } 6494 } 6495 if (mDeclaredDevices.size()) { 6496 write(fd, " - devices:\n", strlen(" - devices:\n")); 6497 for (size_t i = 0; i < mDeclaredDevices.size(); i++) { 6498 mDeclaredDevices[i]->dump(fd, 4, i); 6499 } 6500 } 6501 } 6502 6503 // --- AudioPort class implementation 6504 6505 6506 AudioPolicyManager::AudioPort::AudioPort(const String8& name, audio_port_type_t type, 6507 audio_port_role_t role, const sp<HwModule>& module) : 6508 mName(name), mType(type), mRole(role), mModule(module), mFlags(0) 6509 { 6510 mUseInChannelMask = ((type == AUDIO_PORT_TYPE_DEVICE) && (role == AUDIO_PORT_ROLE_SOURCE)) || 6511 ((type == AUDIO_PORT_TYPE_MIX) && (role == AUDIO_PORT_ROLE_SINK)); 6512 } 6513 6514 void AudioPolicyManager::AudioPort::toAudioPort(struct audio_port *port) const 6515 { 6516 port->role = mRole; 6517 port->type = mType; 6518 unsigned int i; 6519 for (i = 0; i < mSamplingRates.size() && i < AUDIO_PORT_MAX_SAMPLING_RATES; i++) { 6520 if (mSamplingRates[i] != 0) { 6521 port->sample_rates[i] = mSamplingRates[i]; 6522 } 6523 } 6524 port->num_sample_rates = i; 6525 for (i = 0; i < mChannelMasks.size() && i < AUDIO_PORT_MAX_CHANNEL_MASKS; i++) { 6526 if (mChannelMasks[i] != 0) { 6527 port->channel_masks[i] = mChannelMasks[i]; 6528 } 6529 } 6530 port->num_channel_masks = i; 6531 for (i = 0; i < mFormats.size() && i < AUDIO_PORT_MAX_FORMATS; i++) { 6532 if (mFormats[i] != 0) { 6533 port->formats[i] = mFormats[i]; 6534 } 6535 } 6536 port->num_formats = i; 6537 6538 ALOGV("AudioPort::toAudioPort() num gains %zu", mGains.size()); 6539 6540 for (i = 0; i < mGains.size() && i < AUDIO_PORT_MAX_GAINS; i++) { 6541 port->gains[i] = mGains[i]->mGain; 6542 } 6543 port->num_gains = i; 6544 } 6545 6546 void AudioPolicyManager::AudioPort::importAudioPort(const sp<AudioPort> port) { 6547 for (size_t k = 0 ; k < port->mSamplingRates.size() ; k++) { 6548 const uint32_t rate = port->mSamplingRates.itemAt(k); 6549 if (rate != 0) { // skip "dynamic" rates 6550 bool hasRate = false; 6551 for (size_t l = 0 ; l < mSamplingRates.size() ; l++) { 6552 if (rate == mSamplingRates.itemAt(l)) { 6553 hasRate = true; 6554 break; 6555 } 6556 } 6557 if (!hasRate) { // never import a sampling rate twice 6558 mSamplingRates.add(rate); 6559 } 6560 } 6561 } 6562 for (size_t k = 0 ; k < port->mChannelMasks.size() ; k++) { 6563 const audio_channel_mask_t mask = port->mChannelMasks.itemAt(k); 6564 if (mask != 0) { // skip "dynamic" masks 6565 bool hasMask = false; 6566 for (size_t l = 0 ; l < mChannelMasks.size() ; l++) { 6567 if (mask == mChannelMasks.itemAt(l)) { 6568 hasMask = true; 6569 break; 6570 } 6571 } 6572 if (!hasMask) { // never import a channel mask twice 6573 mChannelMasks.add(mask); 6574 } 6575 } 6576 } 6577 for (size_t k = 0 ; k < port->mFormats.size() ; k++) { 6578 const audio_format_t format = port->mFormats.itemAt(k); 6579 if (format != 0) { // skip "dynamic" formats 6580 bool hasFormat = false; 6581 for (size_t l = 0 ; l < mFormats.size() ; l++) { 6582 if (format == mFormats.itemAt(l)) { 6583 hasFormat = true; 6584 break; 6585 } 6586 } 6587 if (!hasFormat) { // never import a channel mask twice 6588 mFormats.add(format); 6589 } 6590 } 6591 } 6592 for (size_t k = 0 ; k < port->mGains.size() ; k++) { 6593 sp<AudioGain> gain = port->mGains.itemAt(k); 6594 if (gain != 0) { 6595 bool hasGain = false; 6596 for (size_t l = 0 ; l < mGains.size() ; l++) { 6597 if (gain == mGains.itemAt(l)) { 6598 hasGain = true; 6599 break; 6600 } 6601 } 6602 if (!hasGain) { // never import a gain twice 6603 mGains.add(gain); 6604 } 6605 } 6606 } 6607 } 6608 6609 void AudioPolicyManager::AudioPort::clearCapabilities() { 6610 mChannelMasks.clear(); 6611 mFormats.clear(); 6612 mSamplingRates.clear(); 6613 mGains.clear(); 6614 } 6615 6616 void AudioPolicyManager::AudioPort::loadSamplingRates(char *name) 6617 { 6618 char *str = strtok(name, "|"); 6619 6620 // by convention, "0' in the first entry in mSamplingRates indicates the supported sampling 6621 // rates should be read from the output stream after it is opened for the first time 6622 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 6623 mSamplingRates.add(0); 6624 return; 6625 } 6626 6627 while (str != NULL) { 6628 uint32_t rate = atoi(str); 6629 if (rate != 0) { 6630 ALOGV("loadSamplingRates() adding rate %d", rate); 6631 mSamplingRates.add(rate); 6632 } 6633 str = strtok(NULL, "|"); 6634 } 6635 } 6636 6637 void AudioPolicyManager::AudioPort::loadFormats(char *name) 6638 { 6639 char *str = strtok(name, "|"); 6640 6641 // by convention, "0' in the first entry in mFormats indicates the supported formats 6642 // should be read from the output stream after it is opened for the first time 6643 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 6644 mFormats.add(AUDIO_FORMAT_DEFAULT); 6645 return; 6646 } 6647 6648 while (str != NULL) { 6649 audio_format_t format = (audio_format_t)stringToEnum(sFormatNameToEnumTable, 6650 ARRAY_SIZE(sFormatNameToEnumTable), 6651 str); 6652 if (format != AUDIO_FORMAT_DEFAULT) { 6653 mFormats.add(format); 6654 } 6655 str = strtok(NULL, "|"); 6656 } 6657 } 6658 6659 void AudioPolicyManager::AudioPort::loadInChannels(char *name) 6660 { 6661 const char *str = strtok(name, "|"); 6662 6663 ALOGV("loadInChannels() %s", name); 6664 6665 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 6666 mChannelMasks.add(0); 6667 return; 6668 } 6669 6670 while (str != NULL) { 6671 audio_channel_mask_t channelMask = 6672 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable, 6673 ARRAY_SIZE(sInChannelsNameToEnumTable), 6674 str); 6675 if (channelMask != 0) { 6676 ALOGV("loadInChannels() adding channelMask %04x", channelMask); 6677 mChannelMasks.add(channelMask); 6678 } 6679 str = strtok(NULL, "|"); 6680 } 6681 } 6682 6683 void AudioPolicyManager::AudioPort::loadOutChannels(char *name) 6684 { 6685 const char *str = strtok(name, "|"); 6686 6687 ALOGV("loadOutChannels() %s", name); 6688 6689 // by convention, "0' in the first entry in mChannelMasks indicates the supported channel 6690 // masks should be read from the output stream after it is opened for the first time 6691 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 6692 mChannelMasks.add(0); 6693 return; 6694 } 6695 6696 while (str != NULL) { 6697 audio_channel_mask_t channelMask = 6698 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable, 6699 ARRAY_SIZE(sOutChannelsNameToEnumTable), 6700 str); 6701 if (channelMask != 0) { 6702 mChannelMasks.add(channelMask); 6703 } 6704 str = strtok(NULL, "|"); 6705 } 6706 return; 6707 } 6708 6709 audio_gain_mode_t AudioPolicyManager::AudioPort::loadGainMode(char *name) 6710 { 6711 const char *str = strtok(name, "|"); 6712 6713 ALOGV("loadGainMode() %s", name); 6714 audio_gain_mode_t mode = 0; 6715 while (str != NULL) { 6716 mode |= (audio_gain_mode_t)stringToEnum(sGainModeNameToEnumTable, 6717 ARRAY_SIZE(sGainModeNameToEnumTable), 6718 str); 6719 str = strtok(NULL, "|"); 6720 } 6721 return mode; 6722 } 6723 6724 void AudioPolicyManager::AudioPort::loadGain(cnode *root, int index) 6725 { 6726 cnode *node = root->first_child; 6727 6728 sp<AudioGain> gain = new AudioGain(index, mUseInChannelMask); 6729 6730 while (node) { 6731 if (strcmp(node->name, GAIN_MODE) == 0) { 6732 gain->mGain.mode = loadGainMode((char *)node->value); 6733 } else if (strcmp(node->name, GAIN_CHANNELS) == 0) { 6734 if (mUseInChannelMask) { 6735 gain->mGain.channel_mask = 6736 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable, 6737 ARRAY_SIZE(sInChannelsNameToEnumTable), 6738 (char *)node->value); 6739 } else { 6740 gain->mGain.channel_mask = 6741 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable, 6742 ARRAY_SIZE(sOutChannelsNameToEnumTable), 6743 (char *)node->value); 6744 } 6745 } else if (strcmp(node->name, GAIN_MIN_VALUE) == 0) { 6746 gain->mGain.min_value = atoi((char *)node->value); 6747 } else if (strcmp(node->name, GAIN_MAX_VALUE) == 0) { 6748 gain->mGain.max_value = atoi((char *)node->value); 6749 } else if (strcmp(node->name, GAIN_DEFAULT_VALUE) == 0) { 6750 gain->mGain.default_value = atoi((char *)node->value); 6751 } else if (strcmp(node->name, GAIN_STEP_VALUE) == 0) { 6752 gain->mGain.step_value = atoi((char *)node->value); 6753 } else if (strcmp(node->name, GAIN_MIN_RAMP_MS) == 0) { 6754 gain->mGain.min_ramp_ms = atoi((char *)node->value); 6755 } else if (strcmp(node->name, GAIN_MAX_RAMP_MS) == 0) { 6756 gain->mGain.max_ramp_ms = atoi((char *)node->value); 6757 } 6758 node = node->next; 6759 } 6760 6761 ALOGV("loadGain() adding new gain mode %08x channel mask %08x min mB %d max mB %d", 6762 gain->mGain.mode, gain->mGain.channel_mask, gain->mGain.min_value, gain->mGain.max_value); 6763 6764 if (gain->mGain.mode == 0) { 6765 return; 6766 } 6767 mGains.add(gain); 6768 } 6769 6770 void AudioPolicyManager::AudioPort::loadGains(cnode *root) 6771 { 6772 cnode *node = root->first_child; 6773 int index = 0; 6774 while (node) { 6775 ALOGV("loadGains() loading gain %s", node->name); 6776 loadGain(node, index++); 6777 node = node->next; 6778 } 6779 } 6780 6781 status_t AudioPolicyManager::AudioPort::checkExactSamplingRate(uint32_t samplingRate) const 6782 { 6783 if (mSamplingRates.isEmpty()) { 6784 return NO_ERROR; 6785 } 6786 6787 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 6788 if (mSamplingRates[i] == samplingRate) { 6789 return NO_ERROR; 6790 } 6791 } 6792 return BAD_VALUE; 6793 } 6794 6795 status_t AudioPolicyManager::AudioPort::checkCompatibleSamplingRate(uint32_t samplingRate, 6796 uint32_t *updatedSamplingRate) const 6797 { 6798 if (mSamplingRates.isEmpty()) { 6799 return NO_ERROR; 6800 } 6801 6802 // Search for the closest supported sampling rate that is above (preferred) 6803 // or below (acceptable) the desired sampling rate, within a permitted ratio. 6804 // The sampling rates do not need to be sorted in ascending order. 6805 ssize_t maxBelow = -1; 6806 ssize_t minAbove = -1; 6807 uint32_t candidate; 6808 for (size_t i = 0; i < mSamplingRates.size(); i++) { 6809 candidate = mSamplingRates[i]; 6810 if (candidate == samplingRate) { 6811 if (updatedSamplingRate != NULL) { 6812 *updatedSamplingRate = candidate; 6813 } 6814 return NO_ERROR; 6815 } 6816 // candidate < desired 6817 if (candidate < samplingRate) { 6818 if (maxBelow < 0 || candidate > mSamplingRates[maxBelow]) { 6819 maxBelow = i; 6820 } 6821 // candidate > desired 6822 } else { 6823 if (minAbove < 0 || candidate < mSamplingRates[minAbove]) { 6824 minAbove = i; 6825 } 6826 } 6827 } 6828 // This uses hard-coded knowledge about AudioFlinger resampling ratios. 6829 // TODO Move these assumptions out. 6830 static const uint32_t kMaxDownSampleRatio = 6; // beyond this aliasing occurs 6831 static const uint32_t kMaxUpSampleRatio = 256; // beyond this sample rate inaccuracies occur 6832 // due to approximation by an int32_t of the 6833 // phase increments 6834 // Prefer to down-sample from a higher sampling rate, as we get the desired frequency spectrum. 6835 if (minAbove >= 0) { 6836 candidate = mSamplingRates[minAbove]; 6837 if (candidate / kMaxDownSampleRatio <= samplingRate) { 6838 if (updatedSamplingRate != NULL) { 6839 *updatedSamplingRate = candidate; 6840 } 6841 return NO_ERROR; 6842 } 6843 } 6844 // But if we have to up-sample from a lower sampling rate, that's OK. 6845 if (maxBelow >= 0) { 6846 candidate = mSamplingRates[maxBelow]; 6847 if (candidate * kMaxUpSampleRatio >= samplingRate) { 6848 if (updatedSamplingRate != NULL) { 6849 *updatedSamplingRate = candidate; 6850 } 6851 return NO_ERROR; 6852 } 6853 } 6854 // leave updatedSamplingRate unmodified 6855 return BAD_VALUE; 6856 } 6857 6858 status_t AudioPolicyManager::AudioPort::checkExactChannelMask(audio_channel_mask_t channelMask) const 6859 { 6860 if (mChannelMasks.isEmpty()) { 6861 return NO_ERROR; 6862 } 6863 6864 for (size_t i = 0; i < mChannelMasks.size(); i++) { 6865 if (mChannelMasks[i] == channelMask) { 6866 return NO_ERROR; 6867 } 6868 } 6869 return BAD_VALUE; 6870 } 6871 6872 status_t AudioPolicyManager::AudioPort::checkCompatibleChannelMask(audio_channel_mask_t channelMask) 6873 const 6874 { 6875 if (mChannelMasks.isEmpty()) { 6876 return NO_ERROR; 6877 } 6878 6879 const bool isRecordThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SINK; 6880 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 6881 // FIXME Does not handle multi-channel automatic conversions yet 6882 audio_channel_mask_t supported = mChannelMasks[i]; 6883 if (supported == channelMask) { 6884 return NO_ERROR; 6885 } 6886 if (isRecordThread) { 6887 // This uses hard-coded knowledge that AudioFlinger can silently down-mix and up-mix. 6888 // FIXME Abstract this out to a table. 6889 if (((supported == AUDIO_CHANNEL_IN_FRONT_BACK || supported == AUDIO_CHANNEL_IN_STEREO) 6890 && channelMask == AUDIO_CHANNEL_IN_MONO) || 6891 (supported == AUDIO_CHANNEL_IN_MONO && (channelMask == AUDIO_CHANNEL_IN_FRONT_BACK 6892 || channelMask == AUDIO_CHANNEL_IN_STEREO))) { 6893 return NO_ERROR; 6894 } 6895 } 6896 } 6897 return BAD_VALUE; 6898 } 6899 6900 status_t AudioPolicyManager::AudioPort::checkFormat(audio_format_t format) const 6901 { 6902 if (mFormats.isEmpty()) { 6903 return NO_ERROR; 6904 } 6905 6906 for (size_t i = 0; i < mFormats.size(); i ++) { 6907 if (mFormats[i] == format) { 6908 return NO_ERROR; 6909 } 6910 } 6911 return BAD_VALUE; 6912 } 6913 6914 6915 uint32_t AudioPolicyManager::AudioPort::pickSamplingRate() const 6916 { 6917 // special case for uninitialized dynamic profile 6918 if (mSamplingRates.size() == 1 && mSamplingRates[0] == 0) { 6919 return 0; 6920 } 6921 6922 // For direct outputs, pick minimum sampling rate: this helps ensuring that the 6923 // channel count / sampling rate combination chosen will be supported by the connected 6924 // sink 6925 if ((mType == AUDIO_PORT_TYPE_MIX) && (mRole == AUDIO_PORT_ROLE_SOURCE) && 6926 (mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD))) { 6927 uint32_t samplingRate = UINT_MAX; 6928 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 6929 if ((mSamplingRates[i] < samplingRate) && (mSamplingRates[i] > 0)) { 6930 samplingRate = mSamplingRates[i]; 6931 } 6932 } 6933 return (samplingRate == UINT_MAX) ? 0 : samplingRate; 6934 } 6935 6936 uint32_t samplingRate = 0; 6937 uint32_t maxRate = MAX_MIXER_SAMPLING_RATE; 6938 6939 // For mixed output and inputs, use max mixer sampling rates. Do not 6940 // limit sampling rate otherwise 6941 if (mType != AUDIO_PORT_TYPE_MIX) { 6942 maxRate = UINT_MAX; 6943 } 6944 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 6945 if ((mSamplingRates[i] > samplingRate) && (mSamplingRates[i] <= maxRate)) { 6946 samplingRate = mSamplingRates[i]; 6947 } 6948 } 6949 return samplingRate; 6950 } 6951 6952 audio_channel_mask_t AudioPolicyManager::AudioPort::pickChannelMask() const 6953 { 6954 // special case for uninitialized dynamic profile 6955 if (mChannelMasks.size() == 1 && mChannelMasks[0] == 0) { 6956 return AUDIO_CHANNEL_NONE; 6957 } 6958 audio_channel_mask_t channelMask = AUDIO_CHANNEL_NONE; 6959 6960 // For direct outputs, pick minimum channel count: this helps ensuring that the 6961 // channel count / sampling rate combination chosen will be supported by the connected 6962 // sink 6963 if ((mType == AUDIO_PORT_TYPE_MIX) && (mRole == AUDIO_PORT_ROLE_SOURCE) && 6964 (mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD))) { 6965 uint32_t channelCount = UINT_MAX; 6966 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 6967 uint32_t cnlCount; 6968 if (mUseInChannelMask) { 6969 cnlCount = audio_channel_count_from_in_mask(mChannelMasks[i]); 6970 } else { 6971 cnlCount = audio_channel_count_from_out_mask(mChannelMasks[i]); 6972 } 6973 if ((cnlCount < channelCount) && (cnlCount > 0)) { 6974 channelMask = mChannelMasks[i]; 6975 channelCount = cnlCount; 6976 } 6977 } 6978 return channelMask; 6979 } 6980 6981 uint32_t channelCount = 0; 6982 uint32_t maxCount = MAX_MIXER_CHANNEL_COUNT; 6983 6984 // For mixed output and inputs, use max mixer channel count. Do not 6985 // limit channel count otherwise 6986 if (mType != AUDIO_PORT_TYPE_MIX) { 6987 maxCount = UINT_MAX; 6988 } 6989 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 6990 uint32_t cnlCount; 6991 if (mUseInChannelMask) { 6992 cnlCount = audio_channel_count_from_in_mask(mChannelMasks[i]); 6993 } else { 6994 cnlCount = audio_channel_count_from_out_mask(mChannelMasks[i]); 6995 } 6996 if ((cnlCount > channelCount) && (cnlCount <= maxCount)) { 6997 channelMask = mChannelMasks[i]; 6998 channelCount = cnlCount; 6999 } 7000 } 7001 return channelMask; 7002 } 7003 7004 /* format in order of increasing preference */ 7005 const audio_format_t AudioPolicyManager::AudioPort::sPcmFormatCompareTable[] = { 7006 AUDIO_FORMAT_DEFAULT, 7007 AUDIO_FORMAT_PCM_16_BIT, 7008 AUDIO_FORMAT_PCM_8_24_BIT, 7009 AUDIO_FORMAT_PCM_24_BIT_PACKED, 7010 AUDIO_FORMAT_PCM_32_BIT, 7011 AUDIO_FORMAT_PCM_FLOAT, 7012 }; 7013 7014 int AudioPolicyManager::AudioPort::compareFormats(audio_format_t format1, 7015 audio_format_t format2) 7016 { 7017 // NOTE: AUDIO_FORMAT_INVALID is also considered not PCM and will be compared equal to any 7018 // compressed format and better than any PCM format. This is by design of pickFormat() 7019 if (!audio_is_linear_pcm(format1)) { 7020 if (!audio_is_linear_pcm(format2)) { 7021 return 0; 7022 } 7023 return 1; 7024 } 7025 if (!audio_is_linear_pcm(format2)) { 7026 return -1; 7027 } 7028 7029 int index1 = -1, index2 = -1; 7030 for (size_t i = 0; 7031 (i < ARRAY_SIZE(sPcmFormatCompareTable)) && ((index1 == -1) || (index2 == -1)); 7032 i ++) { 7033 if (sPcmFormatCompareTable[i] == format1) { 7034 index1 = i; 7035 } 7036 if (sPcmFormatCompareTable[i] == format2) { 7037 index2 = i; 7038 } 7039 } 7040 // format1 not found => index1 < 0 => format2 > format1 7041 // format2 not found => index2 < 0 => format2 < format1 7042 return index1 - index2; 7043 } 7044 7045 audio_format_t AudioPolicyManager::AudioPort::pickFormat() const 7046 { 7047 // special case for uninitialized dynamic profile 7048 if (mFormats.size() == 1 && mFormats[0] == 0) { 7049 return AUDIO_FORMAT_DEFAULT; 7050 } 7051 7052 audio_format_t format = AUDIO_FORMAT_DEFAULT; 7053 audio_format_t bestFormat = 7054 AudioPolicyManager::AudioPort::sPcmFormatCompareTable[ 7055 ARRAY_SIZE(AudioPolicyManager::AudioPort::sPcmFormatCompareTable) - 1]; 7056 // For mixed output and inputs, use best mixer output format. Do not 7057 // limit format otherwise 7058 if ((mType != AUDIO_PORT_TYPE_MIX) || 7059 ((mRole == AUDIO_PORT_ROLE_SOURCE) && 7060 (((mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)) != 0)))) { 7061 bestFormat = AUDIO_FORMAT_INVALID; 7062 } 7063 7064 for (size_t i = 0; i < mFormats.size(); i ++) { 7065 if ((compareFormats(mFormats[i], format) > 0) && 7066 (compareFormats(mFormats[i], bestFormat) <= 0)) { 7067 format = mFormats[i]; 7068 } 7069 } 7070 return format; 7071 } 7072 7073 status_t AudioPolicyManager::AudioPort::checkGain(const struct audio_gain_config *gainConfig, 7074 int index) const 7075 { 7076 if (index < 0 || (size_t)index >= mGains.size()) { 7077 return BAD_VALUE; 7078 } 7079 return mGains[index]->checkConfig(gainConfig); 7080 } 7081 7082 void AudioPolicyManager::AudioPort::dump(int fd, int spaces) const 7083 { 7084 const size_t SIZE = 256; 7085 char buffer[SIZE]; 7086 String8 result; 7087 7088 if (mName.size() != 0) { 7089 snprintf(buffer, SIZE, "%*s- name: %s\n", spaces, "", mName.string()); 7090 result.append(buffer); 7091 } 7092 7093 if (mSamplingRates.size() != 0) { 7094 snprintf(buffer, SIZE, "%*s- sampling rates: ", spaces, ""); 7095 result.append(buffer); 7096 for (size_t i = 0; i < mSamplingRates.size(); i++) { 7097 if (i == 0 && mSamplingRates[i] == 0) { 7098 snprintf(buffer, SIZE, "Dynamic"); 7099 } else { 7100 snprintf(buffer, SIZE, "%d", mSamplingRates[i]); 7101 } 7102 result.append(buffer); 7103 result.append(i == (mSamplingRates.size() - 1) ? "" : ", "); 7104 } 7105 result.append("\n"); 7106 } 7107 7108 if (mChannelMasks.size() != 0) { 7109 snprintf(buffer, SIZE, "%*s- channel masks: ", spaces, ""); 7110 result.append(buffer); 7111 for (size_t i = 0; i < mChannelMasks.size(); i++) { 7112 ALOGV("AudioPort::dump mChannelMasks %zu %08x", i, mChannelMasks[i]); 7113 7114 if (i == 0 && mChannelMasks[i] == 0) { 7115 snprintf(buffer, SIZE, "Dynamic"); 7116 } else { 7117 snprintf(buffer, SIZE, "0x%04x", mChannelMasks[i]); 7118 } 7119 result.append(buffer); 7120 result.append(i == (mChannelMasks.size() - 1) ? "" : ", "); 7121 } 7122 result.append("\n"); 7123 } 7124 7125 if (mFormats.size() != 0) { 7126 snprintf(buffer, SIZE, "%*s- formats: ", spaces, ""); 7127 result.append(buffer); 7128 for (size_t i = 0; i < mFormats.size(); i++) { 7129 const char *formatStr = enumToString(sFormatNameToEnumTable, 7130 ARRAY_SIZE(sFormatNameToEnumTable), 7131 mFormats[i]); 7132 if (i == 0 && strcmp(formatStr, "") == 0) { 7133 snprintf(buffer, SIZE, "Dynamic"); 7134 } else { 7135 snprintf(buffer, SIZE, "%s", formatStr); 7136 } 7137 result.append(buffer); 7138 result.append(i == (mFormats.size() - 1) ? "" : ", "); 7139 } 7140 result.append("\n"); 7141 } 7142 write(fd, result.string(), result.size()); 7143 if (mGains.size() != 0) { 7144 snprintf(buffer, SIZE, "%*s- gains:\n", spaces, ""); 7145 write(fd, buffer, strlen(buffer) + 1); 7146 result.append(buffer); 7147 for (size_t i = 0; i < mGains.size(); i++) { 7148 mGains[i]->dump(fd, spaces + 2, i); 7149 } 7150 } 7151 } 7152 7153 // --- AudioGain class implementation 7154 7155 AudioPolicyManager::AudioGain::AudioGain(int index, bool useInChannelMask) 7156 { 7157 mIndex = index; 7158 mUseInChannelMask = useInChannelMask; 7159 memset(&mGain, 0, sizeof(struct audio_gain)); 7160 } 7161 7162 void AudioPolicyManager::AudioGain::getDefaultConfig(struct audio_gain_config *config) 7163 { 7164 config->index = mIndex; 7165 config->mode = mGain.mode; 7166 config->channel_mask = mGain.channel_mask; 7167 if ((mGain.mode & AUDIO_GAIN_MODE_JOINT) == AUDIO_GAIN_MODE_JOINT) { 7168 config->values[0] = mGain.default_value; 7169 } else { 7170 uint32_t numValues; 7171 if (mUseInChannelMask) { 7172 numValues = audio_channel_count_from_in_mask(mGain.channel_mask); 7173 } else { 7174 numValues = audio_channel_count_from_out_mask(mGain.channel_mask); 7175 } 7176 for (size_t i = 0; i < numValues; i++) { 7177 config->values[i] = mGain.default_value; 7178 } 7179 } 7180 if ((mGain.mode & AUDIO_GAIN_MODE_RAMP) == AUDIO_GAIN_MODE_RAMP) { 7181 config->ramp_duration_ms = mGain.min_ramp_ms; 7182 } 7183 } 7184 7185 status_t AudioPolicyManager::AudioGain::checkConfig(const struct audio_gain_config *config) 7186 { 7187 if ((config->mode & ~mGain.mode) != 0) { 7188 return BAD_VALUE; 7189 } 7190 if ((config->mode & AUDIO_GAIN_MODE_JOINT) == AUDIO_GAIN_MODE_JOINT) { 7191 if ((config->values[0] < mGain.min_value) || 7192 (config->values[0] > mGain.max_value)) { 7193 return BAD_VALUE; 7194 } 7195 } else { 7196 if ((config->channel_mask & ~mGain.channel_mask) != 0) { 7197 return BAD_VALUE; 7198 } 7199 uint32_t numValues; 7200 if (mUseInChannelMask) { 7201 numValues = audio_channel_count_from_in_mask(config->channel_mask); 7202 } else { 7203 numValues = audio_channel_count_from_out_mask(config->channel_mask); 7204 } 7205 for (size_t i = 0; i < numValues; i++) { 7206 if ((config->values[i] < mGain.min_value) || 7207 (config->values[i] > mGain.max_value)) { 7208 return BAD_VALUE; 7209 } 7210 } 7211 } 7212 if ((config->mode & AUDIO_GAIN_MODE_RAMP) == AUDIO_GAIN_MODE_RAMP) { 7213 if ((config->ramp_duration_ms < mGain.min_ramp_ms) || 7214 (config->ramp_duration_ms > mGain.max_ramp_ms)) { 7215 return BAD_VALUE; 7216 } 7217 } 7218 return NO_ERROR; 7219 } 7220 7221 void AudioPolicyManager::AudioGain::dump(int fd, int spaces, int index) const 7222 { 7223 const size_t SIZE = 256; 7224 char buffer[SIZE]; 7225 String8 result; 7226 7227 snprintf(buffer, SIZE, "%*sGain %d:\n", spaces, "", index+1); 7228 result.append(buffer); 7229 snprintf(buffer, SIZE, "%*s- mode: %08x\n", spaces, "", mGain.mode); 7230 result.append(buffer); 7231 snprintf(buffer, SIZE, "%*s- channel_mask: %08x\n", spaces, "", mGain.channel_mask); 7232 result.append(buffer); 7233 snprintf(buffer, SIZE, "%*s- min_value: %d mB\n", spaces, "", mGain.min_value); 7234 result.append(buffer); 7235 snprintf(buffer, SIZE, "%*s- max_value: %d mB\n", spaces, "", mGain.max_value); 7236 result.append(buffer); 7237 snprintf(buffer, SIZE, "%*s- default_value: %d mB\n", spaces, "", mGain.default_value); 7238 result.append(buffer); 7239 snprintf(buffer, SIZE, "%*s- step_value: %d mB\n", spaces, "", mGain.step_value); 7240 result.append(buffer); 7241 snprintf(buffer, SIZE, "%*s- min_ramp_ms: %d ms\n", spaces, "", mGain.min_ramp_ms); 7242 result.append(buffer); 7243 snprintf(buffer, SIZE, "%*s- max_ramp_ms: %d ms\n", spaces, "", mGain.max_ramp_ms); 7244 result.append(buffer); 7245 7246 write(fd, result.string(), result.size()); 7247 } 7248 7249 // --- AudioPortConfig class implementation 7250 7251 AudioPolicyManager::AudioPortConfig::AudioPortConfig() 7252 { 7253 mSamplingRate = 0; 7254 mChannelMask = AUDIO_CHANNEL_NONE; 7255 mFormat = AUDIO_FORMAT_INVALID; 7256 mGain.index = -1; 7257 } 7258 7259 status_t AudioPolicyManager::AudioPortConfig::applyAudioPortConfig( 7260 const struct audio_port_config *config, 7261 struct audio_port_config *backupConfig) 7262 { 7263 struct audio_port_config localBackupConfig; 7264 status_t status = NO_ERROR; 7265 7266 localBackupConfig.config_mask = config->config_mask; 7267 toAudioPortConfig(&localBackupConfig); 7268 7269 sp<AudioPort> audioport = getAudioPort(); 7270 if (audioport == 0) { 7271 status = NO_INIT; 7272 goto exit; 7273 } 7274 if (config->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { 7275 status = audioport->checkExactSamplingRate(config->sample_rate); 7276 if (status != NO_ERROR) { 7277 goto exit; 7278 } 7279 mSamplingRate = config->sample_rate; 7280 } 7281 if (config->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { 7282 status = audioport->checkExactChannelMask(config->channel_mask); 7283 if (status != NO_ERROR) { 7284 goto exit; 7285 } 7286 mChannelMask = config->channel_mask; 7287 } 7288 if (config->config_mask & AUDIO_PORT_CONFIG_FORMAT) { 7289 status = audioport->checkFormat(config->format); 7290 if (status != NO_ERROR) { 7291 goto exit; 7292 } 7293 mFormat = config->format; 7294 } 7295 if (config->config_mask & AUDIO_PORT_CONFIG_GAIN) { 7296 status = audioport->checkGain(&config->gain, config->gain.index); 7297 if (status != NO_ERROR) { 7298 goto exit; 7299 } 7300 mGain = config->gain; 7301 } 7302 7303 exit: 7304 if (status != NO_ERROR) { 7305 applyAudioPortConfig(&localBackupConfig); 7306 } 7307 if (backupConfig != NULL) { 7308 *backupConfig = localBackupConfig; 7309 } 7310 return status; 7311 } 7312 7313 void AudioPolicyManager::AudioPortConfig::toAudioPortConfig( 7314 struct audio_port_config *dstConfig, 7315 const struct audio_port_config *srcConfig) const 7316 { 7317 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { 7318 dstConfig->sample_rate = mSamplingRate; 7319 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE)) { 7320 dstConfig->sample_rate = srcConfig->sample_rate; 7321 } 7322 } else { 7323 dstConfig->sample_rate = 0; 7324 } 7325 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { 7326 dstConfig->channel_mask = mChannelMask; 7327 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK)) { 7328 dstConfig->channel_mask = srcConfig->channel_mask; 7329 } 7330 } else { 7331 dstConfig->channel_mask = AUDIO_CHANNEL_NONE; 7332 } 7333 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_FORMAT) { 7334 dstConfig->format = mFormat; 7335 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_FORMAT)) { 7336 dstConfig->format = srcConfig->format; 7337 } 7338 } else { 7339 dstConfig->format = AUDIO_FORMAT_INVALID; 7340 } 7341 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_GAIN) { 7342 dstConfig->gain = mGain; 7343 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_GAIN)) { 7344 dstConfig->gain = srcConfig->gain; 7345 } 7346 } else { 7347 dstConfig->gain.index = -1; 7348 } 7349 if (dstConfig->gain.index != -1) { 7350 dstConfig->config_mask |= AUDIO_PORT_CONFIG_GAIN; 7351 } else { 7352 dstConfig->config_mask &= ~AUDIO_PORT_CONFIG_GAIN; 7353 } 7354 } 7355 7356 // --- IOProfile class implementation 7357 7358 AudioPolicyManager::IOProfile::IOProfile(const String8& name, audio_port_role_t role, 7359 const sp<HwModule>& module) 7360 : AudioPort(name, AUDIO_PORT_TYPE_MIX, role, module) 7361 { 7362 } 7363 7364 AudioPolicyManager::IOProfile::~IOProfile() 7365 { 7366 } 7367 7368 // checks if the IO profile is compatible with specified parameters. 7369 // Sampling rate, format and channel mask must be specified in order to 7370 // get a valid a match 7371 bool AudioPolicyManager::IOProfile::isCompatibleProfile(audio_devices_t device, 7372 String8 address, 7373 uint32_t samplingRate, 7374 uint32_t *updatedSamplingRate, 7375 audio_format_t format, 7376 audio_channel_mask_t channelMask, 7377 uint32_t flags) const 7378 { 7379 const bool isPlaybackThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SOURCE; 7380 const bool isRecordThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SINK; 7381 ALOG_ASSERT(isPlaybackThread != isRecordThread); 7382 7383 if (device != AUDIO_DEVICE_NONE && mSupportedDevices.getDevice(device, address) == 0) { 7384 return false; 7385 } 7386 7387 if (samplingRate == 0) { 7388 return false; 7389 } 7390 uint32_t myUpdatedSamplingRate = samplingRate; 7391 if (isPlaybackThread && checkExactSamplingRate(samplingRate) != NO_ERROR) { 7392 return false; 7393 } 7394 if (isRecordThread && checkCompatibleSamplingRate(samplingRate, &myUpdatedSamplingRate) != 7395 NO_ERROR) { 7396 return false; 7397 } 7398 7399 if (!audio_is_valid_format(format) || checkFormat(format) != NO_ERROR) { 7400 return false; 7401 } 7402 7403 if (isPlaybackThread && (!audio_is_output_channel(channelMask) || 7404 checkExactChannelMask(channelMask) != NO_ERROR)) { 7405 return false; 7406 } 7407 if (isRecordThread && (!audio_is_input_channel(channelMask) || 7408 checkCompatibleChannelMask(channelMask) != NO_ERROR)) { 7409 return false; 7410 } 7411 7412 if (isPlaybackThread && (mFlags & flags) != flags) { 7413 return false; 7414 } 7415 // The only input flag that is allowed to be different is the fast flag. 7416 // An existing fast stream is compatible with a normal track request. 7417 // An existing normal stream is compatible with a fast track request, 7418 // but the fast request will be denied by AudioFlinger and converted to normal track. 7419 if (isRecordThread && ((mFlags ^ flags) & 7420 ~AUDIO_INPUT_FLAG_FAST)) { 7421 return false; 7422 } 7423 7424 if (updatedSamplingRate != NULL) { 7425 *updatedSamplingRate = myUpdatedSamplingRate; 7426 } 7427 return true; 7428 } 7429 7430 void AudioPolicyManager::IOProfile::dump(int fd) 7431 { 7432 const size_t SIZE = 256; 7433 char buffer[SIZE]; 7434 String8 result; 7435 7436 AudioPort::dump(fd, 4); 7437 7438 snprintf(buffer, SIZE, " - flags: 0x%04x\n", mFlags); 7439 result.append(buffer); 7440 snprintf(buffer, SIZE, " - devices:\n"); 7441 result.append(buffer); 7442 write(fd, result.string(), result.size()); 7443 for (size_t i = 0; i < mSupportedDevices.size(); i++) { 7444 mSupportedDevices[i]->dump(fd, 6, i); 7445 } 7446 } 7447 7448 void AudioPolicyManager::IOProfile::log() 7449 { 7450 const size_t SIZE = 256; 7451 char buffer[SIZE]; 7452 String8 result; 7453 7454 ALOGV(" - sampling rates: "); 7455 for (size_t i = 0; i < mSamplingRates.size(); i++) { 7456 ALOGV(" %d", mSamplingRates[i]); 7457 } 7458 7459 ALOGV(" - channel masks: "); 7460 for (size_t i = 0; i < mChannelMasks.size(); i++) { 7461 ALOGV(" 0x%04x", mChannelMasks[i]); 7462 } 7463 7464 ALOGV(" - formats: "); 7465 for (size_t i = 0; i < mFormats.size(); i++) { 7466 ALOGV(" 0x%08x", mFormats[i]); 7467 } 7468 7469 ALOGV(" - devices: 0x%04x\n", mSupportedDevices.types()); 7470 ALOGV(" - flags: 0x%04x\n", mFlags); 7471 } 7472 7473 7474 // --- DeviceDescriptor implementation 7475 7476 7477 AudioPolicyManager::DeviceDescriptor::DeviceDescriptor(const String8& name, audio_devices_t type) : 7478 AudioPort(name, AUDIO_PORT_TYPE_DEVICE, 7479 audio_is_output_device(type) ? AUDIO_PORT_ROLE_SINK : 7480 AUDIO_PORT_ROLE_SOURCE, 7481 NULL), 7482 mDeviceType(type), mAddress(""), mId(0) 7483 { 7484 } 7485 7486 bool AudioPolicyManager::DeviceDescriptor::equals(const sp<DeviceDescriptor>& other) const 7487 { 7488 // Devices are considered equal if they: 7489 // - are of the same type (a device type cannot be AUDIO_DEVICE_NONE) 7490 // - have the same address or one device does not specify the address 7491 // - have the same channel mask or one device does not specify the channel mask 7492 return (mDeviceType == other->mDeviceType) && 7493 (mAddress == "" || other->mAddress == "" || mAddress == other->mAddress) && 7494 (mChannelMask == 0 || other->mChannelMask == 0 || 7495 mChannelMask == other->mChannelMask); 7496 } 7497 7498 void AudioPolicyManager::DeviceDescriptor::loadGains(cnode *root) 7499 { 7500 AudioPort::loadGains(root); 7501 if (mGains.size() > 0) { 7502 mGains[0]->getDefaultConfig(&mGain); 7503 } 7504 } 7505 7506 7507 void AudioPolicyManager::DeviceVector::refreshTypes() 7508 { 7509 mDeviceTypes = AUDIO_DEVICE_NONE; 7510 for(size_t i = 0; i < size(); i++) { 7511 mDeviceTypes |= itemAt(i)->mDeviceType; 7512 } 7513 ALOGV("DeviceVector::refreshTypes() mDeviceTypes %08x", mDeviceTypes); 7514 } 7515 7516 ssize_t AudioPolicyManager::DeviceVector::indexOf(const sp<DeviceDescriptor>& item) const 7517 { 7518 for(size_t i = 0; i < size(); i++) { 7519 if (item->equals(itemAt(i))) { 7520 return i; 7521 } 7522 } 7523 return -1; 7524 } 7525 7526 ssize_t AudioPolicyManager::DeviceVector::add(const sp<DeviceDescriptor>& item) 7527 { 7528 ssize_t ret = indexOf(item); 7529 7530 if (ret < 0) { 7531 ret = SortedVector::add(item); 7532 if (ret >= 0) { 7533 refreshTypes(); 7534 } 7535 } else { 7536 ALOGW("DeviceVector::add device %08x already in", item->mDeviceType); 7537 ret = -1; 7538 } 7539 return ret; 7540 } 7541 7542 ssize_t AudioPolicyManager::DeviceVector::remove(const sp<DeviceDescriptor>& item) 7543 { 7544 size_t i; 7545 ssize_t ret = indexOf(item); 7546 7547 if (ret < 0) { 7548 ALOGW("DeviceVector::remove device %08x not in", item->mDeviceType); 7549 } else { 7550 ret = SortedVector::removeAt(ret); 7551 if (ret >= 0) { 7552 refreshTypes(); 7553 } 7554 } 7555 return ret; 7556 } 7557 7558 void AudioPolicyManager::DeviceVector::loadDevicesFromType(audio_devices_t types) 7559 { 7560 DeviceVector deviceList; 7561 7562 uint32_t role_bit = AUDIO_DEVICE_BIT_IN & types; 7563 types &= ~role_bit; 7564 7565 while (types) { 7566 uint32_t i = 31 - __builtin_clz(types); 7567 uint32_t type = 1 << i; 7568 types &= ~type; 7569 add(new DeviceDescriptor(String8(""), type | role_bit)); 7570 } 7571 } 7572 7573 void AudioPolicyManager::DeviceVector::loadDevicesFromName(char *name, 7574 const DeviceVector& declaredDevices) 7575 { 7576 char *devName = strtok(name, "|"); 7577 while (devName != NULL) { 7578 if (strlen(devName) != 0) { 7579 audio_devices_t type = stringToEnum(sDeviceNameToEnumTable, 7580 ARRAY_SIZE(sDeviceNameToEnumTable), 7581 devName); 7582 if (type != AUDIO_DEVICE_NONE) { 7583 sp<DeviceDescriptor> dev = new DeviceDescriptor(String8(""), type); 7584 if (type == AUDIO_DEVICE_IN_REMOTE_SUBMIX || 7585 type == AUDIO_DEVICE_OUT_REMOTE_SUBMIX ) { 7586 dev->mAddress = String8("0"); 7587 } 7588 add(dev); 7589 } else { 7590 sp<DeviceDescriptor> deviceDesc = 7591 declaredDevices.getDeviceFromName(String8(devName)); 7592 if (deviceDesc != 0) { 7593 add(deviceDesc); 7594 } 7595 } 7596 } 7597 devName = strtok(NULL, "|"); 7598 } 7599 } 7600 7601 sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDevice( 7602 audio_devices_t type, String8 address) const 7603 { 7604 sp<DeviceDescriptor> device; 7605 for (size_t i = 0; i < size(); i++) { 7606 if (itemAt(i)->mDeviceType == type) { 7607 if (address == "" || itemAt(i)->mAddress == address) { 7608 device = itemAt(i); 7609 if (itemAt(i)->mAddress == address) { 7610 break; 7611 } 7612 } 7613 } 7614 } 7615 ALOGV("DeviceVector::getDevice() for type %08x address %s found %p", 7616 type, address.string(), device.get()); 7617 return device; 7618 } 7619 7620 sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDeviceFromId( 7621 audio_port_handle_t id) const 7622 { 7623 sp<DeviceDescriptor> device; 7624 for (size_t i = 0; i < size(); i++) { 7625 ALOGV("DeviceVector::getDeviceFromId(%d) itemAt(%zu)->mId %d", id, i, itemAt(i)->mId); 7626 if (itemAt(i)->mId == id) { 7627 device = itemAt(i); 7628 break; 7629 } 7630 } 7631 return device; 7632 } 7633 7634 AudioPolicyManager::DeviceVector AudioPolicyManager::DeviceVector::getDevicesFromType( 7635 audio_devices_t type) const 7636 { 7637 DeviceVector devices; 7638 bool isOutput = audio_is_output_devices(type); 7639 type &= ~AUDIO_DEVICE_BIT_IN; 7640 for (size_t i = 0; (i < size()) && (type != AUDIO_DEVICE_NONE); i++) { 7641 bool curIsOutput = audio_is_output_devices(itemAt(i)->mDeviceType); 7642 audio_devices_t curType = itemAt(i)->mDeviceType & ~AUDIO_DEVICE_BIT_IN; 7643 if ((isOutput == curIsOutput) && ((type & curType) != 0)) { 7644 devices.add(itemAt(i)); 7645 type &= ~curType; 7646 ALOGV("DeviceVector::getDevicesFromType() for type %x found %p", 7647 itemAt(i)->mDeviceType, itemAt(i).get()); 7648 } 7649 } 7650 return devices; 7651 } 7652 7653 AudioPolicyManager::DeviceVector AudioPolicyManager::DeviceVector::getDevicesFromTypeAddr( 7654 audio_devices_t type, String8 address) const 7655 { 7656 DeviceVector devices; 7657 for (size_t i = 0; i < size(); i++) { 7658 if (itemAt(i)->mDeviceType == type) { 7659 if (itemAt(i)->mAddress == address) { 7660 devices.add(itemAt(i)); 7661 } 7662 } 7663 } 7664 return devices; 7665 } 7666 7667 sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDeviceFromName( 7668 const String8& name) const 7669 { 7670 sp<DeviceDescriptor> device; 7671 for (size_t i = 0; i < size(); i++) { 7672 if (itemAt(i)->mName == name) { 7673 device = itemAt(i); 7674 break; 7675 } 7676 } 7677 return device; 7678 } 7679 7680 void AudioPolicyManager::DeviceDescriptor::toAudioPortConfig( 7681 struct audio_port_config *dstConfig, 7682 const struct audio_port_config *srcConfig) const 7683 { 7684 dstConfig->config_mask = AUDIO_PORT_CONFIG_CHANNEL_MASK|AUDIO_PORT_CONFIG_GAIN; 7685 if (srcConfig != NULL) { 7686 dstConfig->config_mask |= srcConfig->config_mask; 7687 } 7688 7689 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 7690 7691 dstConfig->id = mId; 7692 dstConfig->role = audio_is_output_device(mDeviceType) ? 7693 AUDIO_PORT_ROLE_SINK : AUDIO_PORT_ROLE_SOURCE; 7694 dstConfig->type = AUDIO_PORT_TYPE_DEVICE; 7695 dstConfig->ext.device.type = mDeviceType; 7696 dstConfig->ext.device.hw_module = mModule->mHandle; 7697 strncpy(dstConfig->ext.device.address, mAddress.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN); 7698 } 7699 7700 void AudioPolicyManager::DeviceDescriptor::toAudioPort(struct audio_port *port) const 7701 { 7702 ALOGV("DeviceDescriptor::toAudioPort() handle %d type %x", mId, mDeviceType); 7703 AudioPort::toAudioPort(port); 7704 port->id = mId; 7705 toAudioPortConfig(&port->active_config); 7706 port->ext.device.type = mDeviceType; 7707 port->ext.device.hw_module = mModule->mHandle; 7708 strncpy(port->ext.device.address, mAddress.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN); 7709 } 7710 7711 status_t AudioPolicyManager::DeviceDescriptor::dump(int fd, int spaces, int index) const 7712 { 7713 const size_t SIZE = 256; 7714 char buffer[SIZE]; 7715 String8 result; 7716 7717 snprintf(buffer, SIZE, "%*sDevice %d:\n", spaces, "", index+1); 7718 result.append(buffer); 7719 if (mId != 0) { 7720 snprintf(buffer, SIZE, "%*s- id: %2d\n", spaces, "", mId); 7721 result.append(buffer); 7722 } 7723 snprintf(buffer, SIZE, "%*s- type: %-48s\n", spaces, "", 7724 enumToString(sDeviceNameToEnumTable, 7725 ARRAY_SIZE(sDeviceNameToEnumTable), 7726 mDeviceType)); 7727 result.append(buffer); 7728 if (mAddress.size() != 0) { 7729 snprintf(buffer, SIZE, "%*s- address: %-32s\n", spaces, "", mAddress.string()); 7730 result.append(buffer); 7731 } 7732 write(fd, result.string(), result.size()); 7733 AudioPort::dump(fd, spaces); 7734 7735 return NO_ERROR; 7736 } 7737 7738 status_t AudioPolicyManager::AudioPatch::dump(int fd, int spaces, int index) const 7739 { 7740 const size_t SIZE = 256; 7741 char buffer[SIZE]; 7742 String8 result; 7743 7744 7745 snprintf(buffer, SIZE, "%*sAudio patch %d:\n", spaces, "", index+1); 7746 result.append(buffer); 7747 snprintf(buffer, SIZE, "%*s- handle: %2d\n", spaces, "", mHandle); 7748 result.append(buffer); 7749 snprintf(buffer, SIZE, "%*s- audio flinger handle: %2d\n", spaces, "", mAfPatchHandle); 7750 result.append(buffer); 7751 snprintf(buffer, SIZE, "%*s- owner uid: %2d\n", spaces, "", mUid); 7752 result.append(buffer); 7753 snprintf(buffer, SIZE, "%*s- %d sources:\n", spaces, "", mPatch.num_sources); 7754 result.append(buffer); 7755 for (size_t i = 0; i < mPatch.num_sources; i++) { 7756 if (mPatch.sources[i].type == AUDIO_PORT_TYPE_DEVICE) { 7757 snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "", 7758 mPatch.sources[i].id, enumToString(sDeviceNameToEnumTable, 7759 ARRAY_SIZE(sDeviceNameToEnumTable), 7760 mPatch.sources[i].ext.device.type)); 7761 } else { 7762 snprintf(buffer, SIZE, "%*s- Mix ID %d I/O handle %d\n", spaces + 2, "", 7763 mPatch.sources[i].id, mPatch.sources[i].ext.mix.handle); 7764 } 7765 result.append(buffer); 7766 } 7767 snprintf(buffer, SIZE, "%*s- %d sinks:\n", spaces, "", mPatch.num_sinks); 7768 result.append(buffer); 7769 for (size_t i = 0; i < mPatch.num_sinks; i++) { 7770 if (mPatch.sinks[i].type == AUDIO_PORT_TYPE_DEVICE) { 7771 snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "", 7772 mPatch.sinks[i].id, enumToString(sDeviceNameToEnumTable, 7773 ARRAY_SIZE(sDeviceNameToEnumTable), 7774 mPatch.sinks[i].ext.device.type)); 7775 } else { 7776 snprintf(buffer, SIZE, "%*s- Mix ID %d I/O handle %d\n", spaces + 2, "", 7777 mPatch.sinks[i].id, mPatch.sinks[i].ext.mix.handle); 7778 } 7779 result.append(buffer); 7780 } 7781 7782 write(fd, result.string(), result.size()); 7783 return NO_ERROR; 7784 } 7785 7786 // --- audio_policy.conf file parsing 7787 7788 uint32_t AudioPolicyManager::parseOutputFlagNames(char *name) 7789 { 7790 uint32_t flag = 0; 7791 7792 // it is OK to cast name to non const here as we are not going to use it after 7793 // strtok() modifies it 7794 char *flagName = strtok(name, "|"); 7795 while (flagName != NULL) { 7796 if (strlen(flagName) != 0) { 7797 flag |= stringToEnum(sOutputFlagNameToEnumTable, 7798 ARRAY_SIZE(sOutputFlagNameToEnumTable), 7799 flagName); 7800 } 7801 flagName = strtok(NULL, "|"); 7802 } 7803 //force direct flag if offload flag is set: offloading implies a direct output stream 7804 // and all common behaviors are driven by checking only the direct flag 7805 // this should normally be set appropriately in the policy configuration file 7806 if ((flag & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 7807 flag |= AUDIO_OUTPUT_FLAG_DIRECT; 7808 } 7809 7810 return flag; 7811 } 7812 7813 uint32_t AudioPolicyManager::parseInputFlagNames(char *name) 7814 { 7815 uint32_t flag = 0; 7816 7817 // it is OK to cast name to non const here as we are not going to use it after 7818 // strtok() modifies it 7819 char *flagName = strtok(name, "|"); 7820 while (flagName != NULL) { 7821 if (strlen(flagName) != 0) { 7822 flag |= stringToEnum(sInputFlagNameToEnumTable, 7823 ARRAY_SIZE(sInputFlagNameToEnumTable), 7824 flagName); 7825 } 7826 flagName = strtok(NULL, "|"); 7827 } 7828 return flag; 7829 } 7830 7831 audio_devices_t AudioPolicyManager::parseDeviceNames(char *name) 7832 { 7833 uint32_t device = 0; 7834 7835 char *devName = strtok(name, "|"); 7836 while (devName != NULL) { 7837 if (strlen(devName) != 0) { 7838 device |= stringToEnum(sDeviceNameToEnumTable, 7839 ARRAY_SIZE(sDeviceNameToEnumTable), 7840 devName); 7841 } 7842 devName = strtok(NULL, "|"); 7843 } 7844 return device; 7845 } 7846 7847 void AudioPolicyManager::loadHwModule(cnode *root) 7848 { 7849 status_t status = NAME_NOT_FOUND; 7850 cnode *node; 7851 sp<HwModule> module = new HwModule(root->name); 7852 7853 node = config_find(root, DEVICES_TAG); 7854 if (node != NULL) { 7855 node = node->first_child; 7856 while (node) { 7857 ALOGV("loadHwModule() loading device %s", node->name); 7858 status_t tmpStatus = module->loadDevice(node); 7859 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 7860 status = tmpStatus; 7861 } 7862 node = node->next; 7863 } 7864 } 7865 node = config_find(root, OUTPUTS_TAG); 7866 if (node != NULL) { 7867 node = node->first_child; 7868 while (node) { 7869 ALOGV("loadHwModule() loading output %s", node->name); 7870 status_t tmpStatus = module->loadOutput(node); 7871 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 7872 status = tmpStatus; 7873 } 7874 node = node->next; 7875 } 7876 } 7877 node = config_find(root, INPUTS_TAG); 7878 if (node != NULL) { 7879 node = node->first_child; 7880 while (node) { 7881 ALOGV("loadHwModule() loading input %s", node->name); 7882 status_t tmpStatus = module->loadInput(node); 7883 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 7884 status = tmpStatus; 7885 } 7886 node = node->next; 7887 } 7888 } 7889 loadGlobalConfig(root, module); 7890 7891 if (status == NO_ERROR) { 7892 mHwModules.add(module); 7893 } 7894 } 7895 7896 void AudioPolicyManager::loadHwModules(cnode *root) 7897 { 7898 cnode *node = config_find(root, AUDIO_HW_MODULE_TAG); 7899 if (node == NULL) { 7900 return; 7901 } 7902 7903 node = node->first_child; 7904 while (node) { 7905 ALOGV("loadHwModules() loading module %s", node->name); 7906 loadHwModule(node); 7907 node = node->next; 7908 } 7909 } 7910 7911 void AudioPolicyManager::loadGlobalConfig(cnode *root, const sp<HwModule>& module) 7912 { 7913 cnode *node = config_find(root, GLOBAL_CONFIG_TAG); 7914 7915 if (node == NULL) { 7916 return; 7917 } 7918 DeviceVector declaredDevices; 7919 if (module != NULL) { 7920 declaredDevices = module->mDeclaredDevices; 7921 } 7922 7923 node = node->first_child; 7924 while (node) { 7925 if (strcmp(ATTACHED_OUTPUT_DEVICES_TAG, node->name) == 0) { 7926 mAvailableOutputDevices.loadDevicesFromName((char *)node->value, 7927 declaredDevices); 7928 ALOGV("loadGlobalConfig() Attached Output Devices %08x", 7929 mAvailableOutputDevices.types()); 7930 } else if (strcmp(DEFAULT_OUTPUT_DEVICE_TAG, node->name) == 0) { 7931 audio_devices_t device = (audio_devices_t)stringToEnum(sDeviceNameToEnumTable, 7932 ARRAY_SIZE(sDeviceNameToEnumTable), 7933 (char *)node->value); 7934 if (device != AUDIO_DEVICE_NONE) { 7935 mDefaultOutputDevice = new DeviceDescriptor(String8(""), device); 7936 } else { 7937 ALOGW("loadGlobalConfig() default device not specified"); 7938 } 7939 ALOGV("loadGlobalConfig() mDefaultOutputDevice %08x", mDefaultOutputDevice->mDeviceType); 7940 } else if (strcmp(ATTACHED_INPUT_DEVICES_TAG, node->name) == 0) { 7941 mAvailableInputDevices.loadDevicesFromName((char *)node->value, 7942 declaredDevices); 7943 ALOGV("loadGlobalConfig() Available InputDevices %08x", mAvailableInputDevices.types()); 7944 } else if (strcmp(SPEAKER_DRC_ENABLED_TAG, node->name) == 0) { 7945 mSpeakerDrcEnabled = stringToBool((char *)node->value); 7946 ALOGV("loadGlobalConfig() mSpeakerDrcEnabled = %d", mSpeakerDrcEnabled); 7947 } else if (strcmp(AUDIO_HAL_VERSION_TAG, node->name) == 0) { 7948 uint32_t major, minor; 7949 sscanf((char *)node->value, "%u.%u", &major, &minor); 7950 module->mHalVersion = HARDWARE_DEVICE_API_VERSION(major, minor); 7951 ALOGV("loadGlobalConfig() mHalVersion = %04x major %u minor %u", 7952 module->mHalVersion, major, minor); 7953 } 7954 node = node->next; 7955 } 7956 } 7957 7958 status_t AudioPolicyManager::loadAudioPolicyConfig(const char *path) 7959 { 7960 cnode *root; 7961 char *data; 7962 7963 data = (char *)load_file(path, NULL); 7964 if (data == NULL) { 7965 return -ENODEV; 7966 } 7967 root = config_node("", ""); 7968 config_load(root, data); 7969 7970 loadHwModules(root); 7971 // legacy audio_policy.conf files have one global_configuration section 7972 loadGlobalConfig(root, getModuleFromName(AUDIO_HARDWARE_MODULE_ID_PRIMARY)); 7973 config_free(root); 7974 free(root); 7975 free(data); 7976 7977 ALOGI("loadAudioPolicyConfig() loaded %s\n", path); 7978 7979 return NO_ERROR; 7980 } 7981 7982 void AudioPolicyManager::defaultAudioPolicyConfig(void) 7983 { 7984 sp<HwModule> module; 7985 sp<IOProfile> profile; 7986 sp<DeviceDescriptor> defaultInputDevice = new DeviceDescriptor(String8(""), 7987 AUDIO_DEVICE_IN_BUILTIN_MIC); 7988 mAvailableOutputDevices.add(mDefaultOutputDevice); 7989 mAvailableInputDevices.add(defaultInputDevice); 7990 7991 module = new HwModule("primary"); 7992 7993 profile = new IOProfile(String8("primary"), AUDIO_PORT_ROLE_SOURCE, module); 7994 profile->mSamplingRates.add(44100); 7995 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 7996 profile->mChannelMasks.add(AUDIO_CHANNEL_OUT_STEREO); 7997 profile->mSupportedDevices.add(mDefaultOutputDevice); 7998 profile->mFlags = AUDIO_OUTPUT_FLAG_PRIMARY; 7999 module->mOutputProfiles.add(profile); 8000 8001 profile = new IOProfile(String8("primary"), AUDIO_PORT_ROLE_SINK, module); 8002 profile->mSamplingRates.add(8000); 8003 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 8004 profile->mChannelMasks.add(AUDIO_CHANNEL_IN_MONO); 8005 profile->mSupportedDevices.add(defaultInputDevice); 8006 module->mInputProfiles.add(profile); 8007 8008 mHwModules.add(module); 8009 } 8010 8011 audio_stream_type_t AudioPolicyManager::streamTypefromAttributesInt(const audio_attributes_t *attr) 8012 { 8013 // flags to stream type mapping 8014 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 8015 return AUDIO_STREAM_ENFORCED_AUDIBLE; 8016 } 8017 if ((attr->flags & AUDIO_FLAG_SCO) == AUDIO_FLAG_SCO) { 8018 return AUDIO_STREAM_BLUETOOTH_SCO; 8019 } 8020 if ((attr->flags & AUDIO_FLAG_BEACON) == AUDIO_FLAG_BEACON) { 8021 return AUDIO_STREAM_TTS; 8022 } 8023 8024 // usage to stream type mapping 8025 switch (attr->usage) { 8026 case AUDIO_USAGE_MEDIA: 8027 case AUDIO_USAGE_GAME: 8028 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 8029 return AUDIO_STREAM_MUSIC; 8030 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 8031 if (isStreamActive(AUDIO_STREAM_ALARM)) { 8032 return AUDIO_STREAM_ALARM; 8033 } 8034 if (isStreamActive(AUDIO_STREAM_RING)) { 8035 return AUDIO_STREAM_RING; 8036 } 8037 if (isInCall()) { 8038 return AUDIO_STREAM_VOICE_CALL; 8039 } 8040 return AUDIO_STREAM_ACCESSIBILITY; 8041 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 8042 return AUDIO_STREAM_SYSTEM; 8043 case AUDIO_USAGE_VOICE_COMMUNICATION: 8044 return AUDIO_STREAM_VOICE_CALL; 8045 8046 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 8047 return AUDIO_STREAM_DTMF; 8048 8049 case AUDIO_USAGE_ALARM: 8050 return AUDIO_STREAM_ALARM; 8051 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 8052 return AUDIO_STREAM_RING; 8053 8054 case AUDIO_USAGE_NOTIFICATION: 8055 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 8056 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 8057 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 8058 case AUDIO_USAGE_NOTIFICATION_EVENT: 8059 return AUDIO_STREAM_NOTIFICATION; 8060 8061 case AUDIO_USAGE_UNKNOWN: 8062 default: 8063 return AUDIO_STREAM_MUSIC; 8064 } 8065 } 8066 8067 bool AudioPolicyManager::isValidAttributes(const audio_attributes_t *paa) { 8068 // has flags that map to a strategy? 8069 if ((paa->flags & (AUDIO_FLAG_AUDIBILITY_ENFORCED | AUDIO_FLAG_SCO | AUDIO_FLAG_BEACON)) != 0) { 8070 return true; 8071 } 8072 8073 // has known usage? 8074 switch (paa->usage) { 8075 case AUDIO_USAGE_UNKNOWN: 8076 case AUDIO_USAGE_MEDIA: 8077 case AUDIO_USAGE_VOICE_COMMUNICATION: 8078 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 8079 case AUDIO_USAGE_ALARM: 8080 case AUDIO_USAGE_NOTIFICATION: 8081 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 8082 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 8083 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 8084 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 8085 case AUDIO_USAGE_NOTIFICATION_EVENT: 8086 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 8087 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 8088 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 8089 case AUDIO_USAGE_GAME: 8090 case AUDIO_USAGE_VIRTUAL_SOURCE: 8091 break; 8092 default: 8093 return false; 8094 } 8095 return true; 8096 } 8097 8098 }; // namespace android 8099
