AudioPolicyManager.cpp revision ddbc6657fa0c55166148ca597980edbaafc418bf
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 <soundtrigger/SoundTrigger.h> 47#include "AudioPolicyManager.h" 48#include "audio_policy_conf.h" 49 50namespace android { 51 52// ---------------------------------------------------------------------------- 53// Definitions for audio_policy.conf file parsing 54// ---------------------------------------------------------------------------- 55 56struct StringToEnum { 57 const char *name; 58 uint32_t value; 59}; 60 61#define STRING_TO_ENUM(string) { #string, string } 62#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) 63 64const StringToEnum sDeviceNameToEnumTable[] = { 65 STRING_TO_ENUM(AUDIO_DEVICE_OUT_EARPIECE), 66 STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPEAKER), 67 STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPEAKER_SAFE), 68 STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADSET), 69 STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADPHONE), 70 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO), 71 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET), 72 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT), 73 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_SCO), 74 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP), 75 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES), 76 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER), 77 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_A2DP), 78 STRING_TO_ENUM(AUDIO_DEVICE_OUT_AUX_DIGITAL), 79 STRING_TO_ENUM(AUDIO_DEVICE_OUT_HDMI), 80 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET), 81 STRING_TO_ENUM(AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET), 82 STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_ACCESSORY), 83 STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_DEVICE), 84 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_USB), 85 STRING_TO_ENUM(AUDIO_DEVICE_OUT_REMOTE_SUBMIX), 86 STRING_TO_ENUM(AUDIO_DEVICE_OUT_TELEPHONY_TX), 87 STRING_TO_ENUM(AUDIO_DEVICE_OUT_LINE), 88 STRING_TO_ENUM(AUDIO_DEVICE_OUT_HDMI_ARC), 89 STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPDIF), 90 STRING_TO_ENUM(AUDIO_DEVICE_OUT_FM), 91 STRING_TO_ENUM(AUDIO_DEVICE_OUT_AUX_LINE), 92 STRING_TO_ENUM(AUDIO_DEVICE_IN_AMBIENT), 93 STRING_TO_ENUM(AUDIO_DEVICE_IN_BUILTIN_MIC), 94 STRING_TO_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET), 95 STRING_TO_ENUM(AUDIO_DEVICE_IN_ALL_SCO), 96 STRING_TO_ENUM(AUDIO_DEVICE_IN_WIRED_HEADSET), 97 STRING_TO_ENUM(AUDIO_DEVICE_IN_AUX_DIGITAL), 98 STRING_TO_ENUM(AUDIO_DEVICE_IN_HDMI), 99 STRING_TO_ENUM(AUDIO_DEVICE_IN_TELEPHONY_RX), 100 STRING_TO_ENUM(AUDIO_DEVICE_IN_VOICE_CALL), 101 STRING_TO_ENUM(AUDIO_DEVICE_IN_BACK_MIC), 102 STRING_TO_ENUM(AUDIO_DEVICE_IN_REMOTE_SUBMIX), 103 STRING_TO_ENUM(AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET), 104 STRING_TO_ENUM(AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET), 105 STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_ACCESSORY), 106 STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_DEVICE), 107 STRING_TO_ENUM(AUDIO_DEVICE_IN_FM_TUNER), 108 STRING_TO_ENUM(AUDIO_DEVICE_IN_TV_TUNER), 109 STRING_TO_ENUM(AUDIO_DEVICE_IN_LINE), 110 STRING_TO_ENUM(AUDIO_DEVICE_IN_SPDIF), 111 STRING_TO_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_A2DP), 112 STRING_TO_ENUM(AUDIO_DEVICE_IN_LOOPBACK), 113}; 114 115const StringToEnum sOutputFlagNameToEnumTable[] = { 116 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DIRECT), 117 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_PRIMARY), 118 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_FAST), 119 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DEEP_BUFFER), 120 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD), 121 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_NON_BLOCKING), 122 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_HW_AV_SYNC), 123}; 124 125const StringToEnum sInputFlagNameToEnumTable[] = { 126 STRING_TO_ENUM(AUDIO_INPUT_FLAG_FAST), 127 STRING_TO_ENUM(AUDIO_INPUT_FLAG_HW_HOTWORD), 128}; 129 130const StringToEnum sFormatNameToEnumTable[] = { 131 STRING_TO_ENUM(AUDIO_FORMAT_PCM_16_BIT), 132 STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_BIT), 133 STRING_TO_ENUM(AUDIO_FORMAT_PCM_32_BIT), 134 STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_24_BIT), 135 STRING_TO_ENUM(AUDIO_FORMAT_PCM_FLOAT), 136 STRING_TO_ENUM(AUDIO_FORMAT_PCM_24_BIT_PACKED), 137 STRING_TO_ENUM(AUDIO_FORMAT_MP3), 138 STRING_TO_ENUM(AUDIO_FORMAT_AAC), 139 STRING_TO_ENUM(AUDIO_FORMAT_AAC_MAIN), 140 STRING_TO_ENUM(AUDIO_FORMAT_AAC_LC), 141 STRING_TO_ENUM(AUDIO_FORMAT_AAC_SSR), 142 STRING_TO_ENUM(AUDIO_FORMAT_AAC_LTP), 143 STRING_TO_ENUM(AUDIO_FORMAT_AAC_HE_V1), 144 STRING_TO_ENUM(AUDIO_FORMAT_AAC_SCALABLE), 145 STRING_TO_ENUM(AUDIO_FORMAT_AAC_ERLC), 146 STRING_TO_ENUM(AUDIO_FORMAT_AAC_LD), 147 STRING_TO_ENUM(AUDIO_FORMAT_AAC_HE_V2), 148 STRING_TO_ENUM(AUDIO_FORMAT_AAC_ELD), 149 STRING_TO_ENUM(AUDIO_FORMAT_VORBIS), 150 STRING_TO_ENUM(AUDIO_FORMAT_HE_AAC_V1), 151 STRING_TO_ENUM(AUDIO_FORMAT_HE_AAC_V2), 152 STRING_TO_ENUM(AUDIO_FORMAT_OPUS), 153 STRING_TO_ENUM(AUDIO_FORMAT_AC3), 154 STRING_TO_ENUM(AUDIO_FORMAT_E_AC3), 155}; 156 157const StringToEnum sOutChannelsNameToEnumTable[] = { 158 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_MONO), 159 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_STEREO), 160 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_QUAD), 161 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_5POINT1), 162 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_7POINT1), 163}; 164 165const StringToEnum sInChannelsNameToEnumTable[] = { 166 STRING_TO_ENUM(AUDIO_CHANNEL_IN_MONO), 167 STRING_TO_ENUM(AUDIO_CHANNEL_IN_STEREO), 168 STRING_TO_ENUM(AUDIO_CHANNEL_IN_FRONT_BACK), 169}; 170 171const StringToEnum sGainModeNameToEnumTable[] = { 172 STRING_TO_ENUM(AUDIO_GAIN_MODE_JOINT), 173 STRING_TO_ENUM(AUDIO_GAIN_MODE_CHANNELS), 174 STRING_TO_ENUM(AUDIO_GAIN_MODE_RAMP), 175}; 176 177 178uint32_t AudioPolicyManager::stringToEnum(const struct StringToEnum *table, 179 size_t size, 180 const char *name) 181{ 182 for (size_t i = 0; i < size; i++) { 183 if (strcmp(table[i].name, name) == 0) { 184 ALOGV("stringToEnum() found %s", table[i].name); 185 return table[i].value; 186 } 187 } 188 return 0; 189} 190 191const char *AudioPolicyManager::enumToString(const struct StringToEnum *table, 192 size_t size, 193 uint32_t value) 194{ 195 for (size_t i = 0; i < size; i++) { 196 if (table[i].value == value) { 197 return table[i].name; 198 } 199 } 200 return ""; 201} 202 203bool AudioPolicyManager::stringToBool(const char *value) 204{ 205 return ((strcasecmp("true", value) == 0) || (strcmp("1", value) == 0)); 206} 207 208 209// ---------------------------------------------------------------------------- 210// AudioPolicyInterface implementation 211// ---------------------------------------------------------------------------- 212 213 214status_t AudioPolicyManager::setDeviceConnectionState(audio_devices_t device, 215 audio_policy_dev_state_t state, 216 const char *device_address) 217{ 218 String8 address = (device_address == NULL) ? String8("") : String8(device_address); 219 // handle legacy remote submix case where the address was not always specified 220 if (deviceDistinguishesOnAddress(device) && (address.length() == 0)) { 221 address = String8("0"); 222 } 223 224 ALOGV("setDeviceConnectionState() device: %x, state %d, address %s", 225 device, state, address.string()); 226 227 // connect/disconnect only 1 device at a time 228 if (!audio_is_output_device(device) && !audio_is_input_device(device)) return BAD_VALUE; 229 230 // handle output devices 231 if (audio_is_output_device(device)) { 232 SortedVector <audio_io_handle_t> outputs; 233 234 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 235 devDesc->mAddress = address; 236 ssize_t index = mAvailableOutputDevices.indexOf(devDesc); 237 238 // save a copy of the opened output descriptors before any output is opened or closed 239 // by checkOutputsForDevice(). This will be needed by checkOutputForAllStrategies() 240 mPreviousOutputs = mOutputs; 241 switch (state) 242 { 243 // handle output device connection 244 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: 245 if (index >= 0) { 246 ALOGW("setDeviceConnectionState() device already connected: %x", device); 247 return INVALID_OPERATION; 248 } 249 ALOGV("setDeviceConnectionState() connecting device %x", device); 250 251 // register new device as available 252 index = mAvailableOutputDevices.add(devDesc); 253 if (index >= 0) { 254 sp<HwModule> module = getModuleForDevice(device); 255 if (module == 0) { 256 ALOGD("setDeviceConnectionState() could not find HW module for device %08x", 257 device); 258 mAvailableOutputDevices.remove(devDesc); 259 return INVALID_OPERATION; 260 } 261 mAvailableOutputDevices[index]->mId = nextUniqueId(); 262 mAvailableOutputDevices[index]->mModule = module; 263 } else { 264 return NO_MEMORY; 265 } 266 267 if (checkOutputsForDevice(devDesc, state, outputs, address) != NO_ERROR) { 268 mAvailableOutputDevices.remove(devDesc); 269 return INVALID_OPERATION; 270 } 271 // outputs should never be empty here 272 ALOG_ASSERT(outputs.size() != 0, "setDeviceConnectionState():" 273 "checkOutputsForDevice() returned no outputs but status OK"); 274 ALOGV("setDeviceConnectionState() checkOutputsForDevice() returned %zu outputs", 275 outputs.size()); 276 break; 277 // handle output device disconnection 278 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 279 if (index < 0) { 280 ALOGW("setDeviceConnectionState() device not connected: %x", device); 281 return INVALID_OPERATION; 282 } 283 284 ALOGV("setDeviceConnectionState() disconnecting output device %x", device); 285 286 // Set Disconnect to HALs 287 AudioParameter param = AudioParameter(address); 288 param.addInt(String8(AUDIO_PARAMETER_DEVICE_DISCONNECT), device); 289 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 290 291 // remove device from available output devices 292 mAvailableOutputDevices.remove(devDesc); 293 294 checkOutputsForDevice(devDesc, state, outputs, address); 295 } break; 296 297 default: 298 ALOGE("setDeviceConnectionState() invalid state: %x", state); 299 return BAD_VALUE; 300 } 301 302 // checkA2dpSuspend must run before checkOutputForAllStrategies so that A2DP 303 // output is suspended before any tracks are moved to it 304 checkA2dpSuspend(); 305 checkOutputForAllStrategies(); 306 // outputs must be closed after checkOutputForAllStrategies() is executed 307 if (!outputs.isEmpty()) { 308 for (size_t i = 0; i < outputs.size(); i++) { 309 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 310 // close unused outputs after device disconnection or direct outputs that have been 311 // opened by checkOutputsForDevice() to query dynamic parameters 312 if ((state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) || 313 (((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) && 314 (desc->mDirectOpenCount == 0))) { 315 closeOutput(outputs[i]); 316 } 317 } 318 // check again after closing A2DP output to reset mA2dpSuspended if needed 319 checkA2dpSuspend(); 320 } 321 322 updateDevicesAndOutputs(); 323 if (mPhoneState == AUDIO_MODE_IN_CALL) { 324 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 325 updateCallRouting(newDevice); 326 } 327 for (size_t i = 0; i < mOutputs.size(); i++) { 328 audio_io_handle_t output = mOutputs.keyAt(i); 329 if ((mPhoneState != AUDIO_MODE_IN_CALL) || (output != mPrimaryOutput)) { 330 audio_devices_t newDevice = getNewOutputDevice(mOutputs.keyAt(i), 331 true /*fromCache*/); 332 // do not force device change on duplicated output because if device is 0, it will 333 // also force a device 0 for the two outputs it is duplicated to which may override 334 // a valid device selection on those outputs. 335 bool force = !mOutputs.valueAt(i)->isDuplicated() 336 && (!deviceDistinguishesOnAddress(device) 337 // always force when disconnecting (a non-duplicated device) 338 || (state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE)); 339 setOutputDevice(output, newDevice, force, 0); 340 } 341 } 342 343 mpClientInterface->onAudioPortListUpdate(); 344 return NO_ERROR; 345 } // end if is output device 346 347 // handle input devices 348 if (audio_is_input_device(device)) { 349 SortedVector <audio_io_handle_t> inputs; 350 351 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 352 devDesc->mAddress = address; 353 ssize_t index = mAvailableInputDevices.indexOf(devDesc); 354 switch (state) 355 { 356 // handle input device connection 357 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: { 358 if (index >= 0) { 359 ALOGW("setDeviceConnectionState() device already connected: %d", device); 360 return INVALID_OPERATION; 361 } 362 sp<HwModule> module = getModuleForDevice(device); 363 if (module == NULL) { 364 ALOGW("setDeviceConnectionState(): could not find HW module for device %08x", 365 device); 366 return INVALID_OPERATION; 367 } 368 if (checkInputsForDevice(device, state, inputs, address) != NO_ERROR) { 369 return INVALID_OPERATION; 370 } 371 372 index = mAvailableInputDevices.add(devDesc); 373 if (index >= 0) { 374 mAvailableInputDevices[index]->mId = nextUniqueId(); 375 mAvailableInputDevices[index]->mModule = module; 376 } else { 377 return NO_MEMORY; 378 } 379 } break; 380 381 // handle input device disconnection 382 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 383 if (index < 0) { 384 ALOGW("setDeviceConnectionState() device not connected: %d", device); 385 return INVALID_OPERATION; 386 } 387 388 ALOGV("setDeviceConnectionState() disconnecting input device %x", device); 389 390 // Set Disconnect to HALs 391 AudioParameter param = AudioParameter(address); 392 param.addInt(String8(AUDIO_PARAMETER_DEVICE_DISCONNECT), device); 393 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 394 395 checkInputsForDevice(device, state, inputs, address); 396 mAvailableInputDevices.remove(devDesc); 397 398 } break; 399 400 default: 401 ALOGE("setDeviceConnectionState() invalid state: %x", state); 402 return BAD_VALUE; 403 } 404 405 closeAllInputs(); 406 407 if (mPhoneState == AUDIO_MODE_IN_CALL) { 408 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 409 updateCallRouting(newDevice); 410 } 411 412 mpClientInterface->onAudioPortListUpdate(); 413 return NO_ERROR; 414 } // end if is input device 415 416 ALOGW("setDeviceConnectionState() invalid device: %x", device); 417 return BAD_VALUE; 418} 419 420audio_policy_dev_state_t AudioPolicyManager::getDeviceConnectionState(audio_devices_t device, 421 const char *device_address) 422{ 423 audio_policy_dev_state_t state = AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 424 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 425 devDesc->mAddress = (device_address == NULL) ? String8("") : String8(device_address); 426 // handle legacy remote submix case where the address was not always specified 427 if (deviceDistinguishesOnAddress(device) && (devDesc->mAddress.length() == 0)) { 428 devDesc->mAddress = String8("0"); 429 } 430 ssize_t index; 431 DeviceVector *deviceVector; 432 433 if (audio_is_output_device(device)) { 434 deviceVector = &mAvailableOutputDevices; 435 } else if (audio_is_input_device(device)) { 436 deviceVector = &mAvailableInputDevices; 437 } else { 438 ALOGW("getDeviceConnectionState() invalid device type %08x", device); 439 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 440 } 441 442 index = deviceVector->indexOf(devDesc); 443 if (index >= 0) { 444 return AUDIO_POLICY_DEVICE_STATE_AVAILABLE; 445 } else { 446 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 447 } 448} 449 450void AudioPolicyManager::updateCallRouting(audio_devices_t rxDevice, int delayMs) 451{ 452 bool createTxPatch = false; 453 struct audio_patch patch; 454 patch.num_sources = 1; 455 patch.num_sinks = 1; 456 status_t status; 457 audio_patch_handle_t afPatchHandle; 458 DeviceVector deviceList; 459 460 audio_devices_t txDevice = getDeviceForInputSource(AUDIO_SOURCE_VOICE_COMMUNICATION); 461 ALOGV("updateCallRouting device rxDevice %08x txDevice %08x", rxDevice, txDevice); 462 463 // release existing RX patch if any 464 if (mCallRxPatch != 0) { 465 mpClientInterface->releaseAudioPatch(mCallRxPatch->mAfPatchHandle, 0); 466 mCallRxPatch.clear(); 467 } 468 // release TX patch if any 469 if (mCallTxPatch != 0) { 470 mpClientInterface->releaseAudioPatch(mCallTxPatch->mAfPatchHandle, 0); 471 mCallTxPatch.clear(); 472 } 473 474 // If the RX device is on the primary HW module, then use legacy routing method for voice calls 475 // via setOutputDevice() on primary output. 476 // Otherwise, create two audio patches for TX and RX path. 477 if (availablePrimaryOutputDevices() & rxDevice) { 478 setOutputDevice(mPrimaryOutput, rxDevice, true, delayMs); 479 // If the TX device is also on the primary HW module, setOutputDevice() will take care 480 // of it due to legacy implementation. If not, create a patch. 481 if ((availablePrimaryInputDevices() & txDevice & ~AUDIO_DEVICE_BIT_IN) 482 == AUDIO_DEVICE_NONE) { 483 createTxPatch = true; 484 } 485 } else { 486 // create RX path audio patch 487 deviceList = mAvailableOutputDevices.getDevicesFromType(rxDevice); 488 ALOG_ASSERT(!deviceList.isEmpty(), 489 "updateCallRouting() selected device not in output device list"); 490 sp<DeviceDescriptor> rxSinkDeviceDesc = deviceList.itemAt(0); 491 deviceList = mAvailableInputDevices.getDevicesFromType(AUDIO_DEVICE_IN_TELEPHONY_RX); 492 ALOG_ASSERT(!deviceList.isEmpty(), 493 "updateCallRouting() no telephony RX device"); 494 sp<DeviceDescriptor> rxSourceDeviceDesc = deviceList.itemAt(0); 495 496 rxSourceDeviceDesc->toAudioPortConfig(&patch.sources[0]); 497 rxSinkDeviceDesc->toAudioPortConfig(&patch.sinks[0]); 498 499 // request to reuse existing output stream if one is already opened to reach the RX device 500 SortedVector<audio_io_handle_t> outputs = 501 getOutputsForDevice(rxDevice, mOutputs); 502 audio_io_handle_t output = selectOutput(outputs, 503 AUDIO_OUTPUT_FLAG_NONE, 504 AUDIO_FORMAT_INVALID); 505 if (output != AUDIO_IO_HANDLE_NONE) { 506 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 507 ALOG_ASSERT(!outputDesc->isDuplicated(), 508 "updateCallRouting() RX device output is duplicated"); 509 outputDesc->toAudioPortConfig(&patch.sources[1]); 510 patch.num_sources = 2; 511 } 512 513 afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 514 status = mpClientInterface->createAudioPatch(&patch, &afPatchHandle, 0); 515 ALOGW_IF(status != NO_ERROR, "updateCallRouting() error %d creating RX audio patch", 516 status); 517 if (status == NO_ERROR) { 518 mCallRxPatch = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 519 &patch, mUidCached); 520 mCallRxPatch->mAfPatchHandle = afPatchHandle; 521 mCallRxPatch->mUid = mUidCached; 522 } 523 createTxPatch = true; 524 } 525 if (createTxPatch) { 526 527 struct audio_patch patch; 528 patch.num_sources = 1; 529 patch.num_sinks = 1; 530 deviceList = mAvailableInputDevices.getDevicesFromType(txDevice); 531 ALOG_ASSERT(!deviceList.isEmpty(), 532 "updateCallRouting() selected device not in input device list"); 533 sp<DeviceDescriptor> txSourceDeviceDesc = deviceList.itemAt(0); 534 txSourceDeviceDesc->toAudioPortConfig(&patch.sources[0]); 535 deviceList = mAvailableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_TELEPHONY_TX); 536 ALOG_ASSERT(!deviceList.isEmpty(), 537 "updateCallRouting() no telephony TX device"); 538 sp<DeviceDescriptor> txSinkDeviceDesc = deviceList.itemAt(0); 539 txSinkDeviceDesc->toAudioPortConfig(&patch.sinks[0]); 540 541 SortedVector<audio_io_handle_t> outputs = 542 getOutputsForDevice(AUDIO_DEVICE_OUT_TELEPHONY_TX, mOutputs); 543 audio_io_handle_t output = selectOutput(outputs, 544 AUDIO_OUTPUT_FLAG_NONE, 545 AUDIO_FORMAT_INVALID); 546 // request to reuse existing output stream if one is already opened to reach the TX 547 // path output device 548 if (output != AUDIO_IO_HANDLE_NONE) { 549 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 550 ALOG_ASSERT(!outputDesc->isDuplicated(), 551 "updateCallRouting() RX device output is duplicated"); 552 outputDesc->toAudioPortConfig(&patch.sources[1]); 553 patch.num_sources = 2; 554 } 555 556 afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 557 status = mpClientInterface->createAudioPatch(&patch, &afPatchHandle, 0); 558 ALOGW_IF(status != NO_ERROR, "setPhoneState() error %d creating TX audio patch", 559 status); 560 if (status == NO_ERROR) { 561 mCallTxPatch = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 562 &patch, mUidCached); 563 mCallTxPatch->mAfPatchHandle = afPatchHandle; 564 mCallTxPatch->mUid = mUidCached; 565 } 566 } 567} 568 569void AudioPolicyManager::setPhoneState(audio_mode_t state) 570{ 571 ALOGV("setPhoneState() state %d", state); 572 if (state < 0 || state >= AUDIO_MODE_CNT) { 573 ALOGW("setPhoneState() invalid state %d", state); 574 return; 575 } 576 577 if (state == mPhoneState ) { 578 ALOGW("setPhoneState() setting same state %d", state); 579 return; 580 } 581 582 // if leaving call state, handle special case of active streams 583 // pertaining to sonification strategy see handleIncallSonification() 584 if (isInCall()) { 585 ALOGV("setPhoneState() in call state management: new state is %d", state); 586 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 587 handleIncallSonification((audio_stream_type_t)stream, false, true); 588 } 589 } 590 591 // store previous phone state for management of sonification strategy below 592 int oldState = mPhoneState; 593 mPhoneState = state; 594 bool force = false; 595 596 // are we entering or starting a call 597 if (!isStateInCall(oldState) && isStateInCall(state)) { 598 ALOGV(" Entering call in setPhoneState()"); 599 // force routing command to audio hardware when starting a call 600 // even if no device change is needed 601 force = true; 602 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 603 mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] = 604 sVolumeProfiles[AUDIO_STREAM_VOICE_CALL][j]; 605 } 606 } else if (isStateInCall(oldState) && !isStateInCall(state)) { 607 ALOGV(" Exiting call in setPhoneState()"); 608 // force routing command to audio hardware when exiting a call 609 // even if no device change is needed 610 force = true; 611 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 612 mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] = 613 sVolumeProfiles[AUDIO_STREAM_DTMF][j]; 614 } 615 } else if (isStateInCall(state) && (state != oldState)) { 616 ALOGV(" Switching between telephony and VoIP in setPhoneState()"); 617 // force routing command to audio hardware when switching between telephony and VoIP 618 // even if no device change is needed 619 force = true; 620 } 621 622 // check for device and output changes triggered by new phone state 623 checkA2dpSuspend(); 624 checkOutputForAllStrategies(); 625 updateDevicesAndOutputs(); 626 627 sp<AudioOutputDescriptor> hwOutputDesc = mOutputs.valueFor(mPrimaryOutput); 628 629 int delayMs = 0; 630 if (isStateInCall(state)) { 631 nsecs_t sysTime = systemTime(); 632 for (size_t i = 0; i < mOutputs.size(); i++) { 633 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 634 // mute media and sonification strategies and delay device switch by the largest 635 // latency of any output where either strategy is active. 636 // This avoid sending the ring tone or music tail into the earpiece or headset. 637 if ((desc->isStrategyActive(STRATEGY_MEDIA, 638 SONIFICATION_HEADSET_MUSIC_DELAY, 639 sysTime) || 640 desc->isStrategyActive(STRATEGY_SONIFICATION, 641 SONIFICATION_HEADSET_MUSIC_DELAY, 642 sysTime)) && 643 (delayMs < (int)desc->mLatency*2)) { 644 delayMs = desc->mLatency*2; 645 } 646 setStrategyMute(STRATEGY_MEDIA, true, mOutputs.keyAt(i)); 647 setStrategyMute(STRATEGY_MEDIA, false, mOutputs.keyAt(i), MUTE_TIME_MS, 648 getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/)); 649 setStrategyMute(STRATEGY_SONIFICATION, true, mOutputs.keyAt(i)); 650 setStrategyMute(STRATEGY_SONIFICATION, false, mOutputs.keyAt(i), MUTE_TIME_MS, 651 getDeviceForStrategy(STRATEGY_SONIFICATION, true /*fromCache*/)); 652 } 653 } 654 655 // Note that despite the fact that getNewOutputDevice() is called on the primary output, 656 // the device returned is not necessarily reachable via this output 657 audio_devices_t rxDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 658 // force routing command to audio hardware when ending call 659 // even if no device change is needed 660 if (isStateInCall(oldState) && rxDevice == AUDIO_DEVICE_NONE) { 661 rxDevice = hwOutputDesc->device(); 662 } 663 664 if (state == AUDIO_MODE_IN_CALL) { 665 updateCallRouting(rxDevice, delayMs); 666 } else if (oldState == AUDIO_MODE_IN_CALL) { 667 if (mCallRxPatch != 0) { 668 mpClientInterface->releaseAudioPatch(mCallRxPatch->mAfPatchHandle, 0); 669 mCallRxPatch.clear(); 670 } 671 if (mCallTxPatch != 0) { 672 mpClientInterface->releaseAudioPatch(mCallTxPatch->mAfPatchHandle, 0); 673 mCallTxPatch.clear(); 674 } 675 setOutputDevice(mPrimaryOutput, rxDevice, force, 0); 676 } else { 677 setOutputDevice(mPrimaryOutput, rxDevice, force, 0); 678 } 679 // if entering in call state, handle special case of active streams 680 // pertaining to sonification strategy see handleIncallSonification() 681 if (isStateInCall(state)) { 682 ALOGV("setPhoneState() in call state management: new state is %d", state); 683 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 684 handleIncallSonification((audio_stream_type_t)stream, true, true); 685 } 686 } 687 688 // Flag that ringtone volume must be limited to music volume until we exit MODE_RINGTONE 689 if (state == AUDIO_MODE_RINGTONE && 690 isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY)) { 691 mLimitRingtoneVolume = true; 692 } else { 693 mLimitRingtoneVolume = false; 694 } 695} 696 697void AudioPolicyManager::setForceUse(audio_policy_force_use_t usage, 698 audio_policy_forced_cfg_t config) 699{ 700 ALOGV("setForceUse() usage %d, config %d, mPhoneState %d", usage, config, mPhoneState); 701 702 bool forceVolumeReeval = false; 703 switch(usage) { 704 case AUDIO_POLICY_FORCE_FOR_COMMUNICATION: 705 if (config != AUDIO_POLICY_FORCE_SPEAKER && config != AUDIO_POLICY_FORCE_BT_SCO && 706 config != AUDIO_POLICY_FORCE_NONE) { 707 ALOGW("setForceUse() invalid config %d for FOR_COMMUNICATION", config); 708 return; 709 } 710 forceVolumeReeval = true; 711 mForceUse[usage] = config; 712 break; 713 case AUDIO_POLICY_FORCE_FOR_MEDIA: 714 if (config != AUDIO_POLICY_FORCE_HEADPHONES && config != AUDIO_POLICY_FORCE_BT_A2DP && 715 config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 716 config != AUDIO_POLICY_FORCE_ANALOG_DOCK && 717 config != AUDIO_POLICY_FORCE_DIGITAL_DOCK && config != AUDIO_POLICY_FORCE_NONE && 718 config != AUDIO_POLICY_FORCE_NO_BT_A2DP && config != AUDIO_POLICY_FORCE_SPEAKER ) { 719 ALOGW("setForceUse() invalid config %d for FOR_MEDIA", config); 720 return; 721 } 722 mForceUse[usage] = config; 723 break; 724 case AUDIO_POLICY_FORCE_FOR_RECORD: 725 if (config != AUDIO_POLICY_FORCE_BT_SCO && config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 726 config != AUDIO_POLICY_FORCE_NONE) { 727 ALOGW("setForceUse() invalid config %d for FOR_RECORD", config); 728 return; 729 } 730 mForceUse[usage] = config; 731 break; 732 case AUDIO_POLICY_FORCE_FOR_DOCK: 733 if (config != AUDIO_POLICY_FORCE_NONE && config != AUDIO_POLICY_FORCE_BT_CAR_DOCK && 734 config != AUDIO_POLICY_FORCE_BT_DESK_DOCK && 735 config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 736 config != AUDIO_POLICY_FORCE_ANALOG_DOCK && 737 config != AUDIO_POLICY_FORCE_DIGITAL_DOCK) { 738 ALOGW("setForceUse() invalid config %d for FOR_DOCK", config); 739 } 740 forceVolumeReeval = true; 741 mForceUse[usage] = config; 742 break; 743 case AUDIO_POLICY_FORCE_FOR_SYSTEM: 744 if (config != AUDIO_POLICY_FORCE_NONE && 745 config != AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) { 746 ALOGW("setForceUse() invalid config %d for FOR_SYSTEM", config); 747 } 748 forceVolumeReeval = true; 749 mForceUse[usage] = config; 750 break; 751 case AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO: 752 if (config != AUDIO_POLICY_FORCE_NONE && 753 config != AUDIO_POLICY_FORCE_HDMI_SYSTEM_AUDIO_ENFORCED) { 754 ALOGW("setForceUse() invalid config %d forHDMI_SYSTEM_AUDIO", config); 755 } 756 mForceUse[usage] = config; 757 break; 758 default: 759 ALOGW("setForceUse() invalid usage %d", usage); 760 break; 761 } 762 763 // check for device and output changes triggered by new force usage 764 checkA2dpSuspend(); 765 checkOutputForAllStrategies(); 766 updateDevicesAndOutputs(); 767 if (mPhoneState == AUDIO_MODE_IN_CALL) { 768 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, true /*fromCache*/); 769 updateCallRouting(newDevice); 770 } 771 for (size_t i = 0; i < mOutputs.size(); i++) { 772 audio_io_handle_t output = mOutputs.keyAt(i); 773 audio_devices_t newDevice = getNewOutputDevice(output, true /*fromCache*/); 774 if ((mPhoneState != AUDIO_MODE_IN_CALL) || (output != mPrimaryOutput)) { 775 setOutputDevice(output, newDevice, (newDevice != AUDIO_DEVICE_NONE)); 776 } 777 if (forceVolumeReeval && (newDevice != AUDIO_DEVICE_NONE)) { 778 applyStreamVolumes(output, newDevice, 0, true); 779 } 780 } 781 782 audio_io_handle_t activeInput = getActiveInput(); 783 if (activeInput != 0) { 784 setInputDevice(activeInput, getNewInputDevice(activeInput)); 785 } 786 787} 788 789audio_policy_forced_cfg_t AudioPolicyManager::getForceUse(audio_policy_force_use_t usage) 790{ 791 return mForceUse[usage]; 792} 793 794void AudioPolicyManager::setSystemProperty(const char* property, const char* value) 795{ 796 ALOGV("setSystemProperty() property %s, value %s", property, value); 797} 798 799// Find a direct output profile compatible with the parameters passed, even if the input flags do 800// not explicitly request a direct output 801sp<AudioPolicyManager::IOProfile> AudioPolicyManager::getProfileForDirectOutput( 802 audio_devices_t device, 803 uint32_t samplingRate, 804 audio_format_t format, 805 audio_channel_mask_t channelMask, 806 audio_output_flags_t flags) 807{ 808 for (size_t i = 0; i < mHwModules.size(); i++) { 809 if (mHwModules[i]->mHandle == 0) { 810 continue; 811 } 812 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) { 813 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 814 bool found = profile->isCompatibleProfile(device, samplingRate, 815 NULL /*updatedSamplingRate*/, format, channelMask, 816 flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD ? 817 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD : AUDIO_OUTPUT_FLAG_DIRECT); 818 if (found && (mAvailableOutputDevices.types() & profile->mSupportedDevices.types())) { 819 return profile; 820 } 821 } 822 } 823 return 0; 824} 825 826audio_io_handle_t AudioPolicyManager::getOutput(audio_stream_type_t stream, 827 uint32_t samplingRate, 828 audio_format_t format, 829 audio_channel_mask_t channelMask, 830 audio_output_flags_t flags, 831 const audio_offload_info_t *offloadInfo) 832{ 833 834 routing_strategy strategy = getStrategy(stream); 835 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 836 ALOGV("getOutput() device %d, stream %d, samplingRate %d, format %x, channelMask %x, flags %x", 837 device, stream, samplingRate, format, channelMask, flags); 838 839 return getOutputForDevice(device, stream, samplingRate,format, channelMask, flags, 840 offloadInfo); 841} 842 843audio_io_handle_t AudioPolicyManager::getOutputForAttr(const audio_attributes_t *attr, 844 uint32_t samplingRate, 845 audio_format_t format, 846 audio_channel_mask_t channelMask, 847 audio_output_flags_t flags, 848 const audio_offload_info_t *offloadInfo) 849{ 850 if (attr == NULL) { 851 ALOGE("getOutputForAttr() called with NULL audio attributes"); 852 return 0; 853 } 854 ALOGV("getOutputForAttr() usage=%d, content=%d, tag=%s flags=%08x", 855 attr->usage, attr->content_type, attr->tags, attr->flags); 856 857 // TODO this is where filtering for custom policies (rerouting, dynamic sources) will go 858 routing_strategy strategy = (routing_strategy) getStrategyForAttr(attr); 859 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 860 861 if ((attr->flags & AUDIO_FLAG_HW_AV_SYNC) != 0) { 862 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_HW_AV_SYNC); 863 } 864 865 ALOGV("getOutputForAttr() device 0x%x, samplingRate %d, format %x, channelMask %x, flags %x", 866 device, samplingRate, format, channelMask, flags); 867 868 audio_stream_type_t stream = streamTypefromAttributesInt(attr); 869 return getOutputForDevice(device, stream, samplingRate, format, channelMask, flags, 870 offloadInfo); 871} 872 873audio_io_handle_t AudioPolicyManager::getOutputForDevice( 874 audio_devices_t device, 875 audio_stream_type_t stream, 876 uint32_t samplingRate, 877 audio_format_t format, 878 audio_channel_mask_t channelMask, 879 audio_output_flags_t flags, 880 const audio_offload_info_t *offloadInfo) 881{ 882 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 883 uint32_t latency = 0; 884 status_t status; 885 886#ifdef AUDIO_POLICY_TEST 887 if (mCurOutput != 0) { 888 ALOGV("getOutput() test output mCurOutput %d, samplingRate %d, format %d, channelMask %x, mDirectOutput %d", 889 mCurOutput, mTestSamplingRate, mTestFormat, mTestChannels, mDirectOutput); 890 891 if (mTestOutputs[mCurOutput] == 0) { 892 ALOGV("getOutput() opening test output"); 893 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(NULL); 894 outputDesc->mDevice = mTestDevice; 895 outputDesc->mLatency = mTestLatencyMs; 896 outputDesc->mFlags = 897 (audio_output_flags_t)(mDirectOutput ? AUDIO_OUTPUT_FLAG_DIRECT : 0); 898 outputDesc->mRefCount[stream] = 0; 899 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 900 config.sample_rate = mTestSamplingRate; 901 config.channel_mask = mTestChannels; 902 config.format = mTestFormat; 903 if (offloadInfo != NULL) { 904 config.offload_info = *offloadInfo; 905 } 906 status = mpClientInterface->openOutput(0, 907 &mTestOutputs[mCurOutput], 908 &config, 909 &outputDesc->mDevice, 910 String8(""), 911 &outputDesc->mLatency, 912 outputDesc->mFlags); 913 if (status == NO_ERROR) { 914 outputDesc->mSamplingRate = config.sample_rate; 915 outputDesc->mFormat = config.format; 916 outputDesc->mChannelMask = config.channel_mask; 917 AudioParameter outputCmd = AudioParameter(); 918 outputCmd.addInt(String8("set_id"),mCurOutput); 919 mpClientInterface->setParameters(mTestOutputs[mCurOutput],outputCmd.toString()); 920 addOutput(mTestOutputs[mCurOutput], outputDesc); 921 } 922 } 923 return mTestOutputs[mCurOutput]; 924 } 925#endif //AUDIO_POLICY_TEST 926 927 // open a direct output if required by specified parameters 928 //force direct flag if offload flag is set: offloading implies a direct output stream 929 // and all common behaviors are driven by checking only the direct flag 930 // this should normally be set appropriately in the policy configuration file 931 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 932 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 933 } 934 if ((flags & AUDIO_OUTPUT_FLAG_HW_AV_SYNC) != 0) { 935 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 936 } 937 938 sp<IOProfile> profile; 939 940 // skip direct output selection if the request can obviously be attached to a mixed output 941 // and not explicitly requested 942 if (((flags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) && 943 audio_is_linear_pcm(format) && samplingRate <= MAX_MIXER_SAMPLING_RATE && 944 audio_channel_count_from_out_mask(channelMask) <= 2) { 945 goto non_direct_output; 946 } 947 948 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 949 // creating an offloaded track and tearing it down immediately after start when audioflinger 950 // detects there is an active non offloadable effect. 951 // FIXME: We should check the audio session here but we do not have it in this context. 952 // This may prevent offloading in rare situations where effects are left active by apps 953 // in the background. 954 955 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) || 956 !isNonOffloadableEffectEnabled()) { 957 profile = getProfileForDirectOutput(device, 958 samplingRate, 959 format, 960 channelMask, 961 (audio_output_flags_t)flags); 962 } 963 964 if (profile != 0) { 965 sp<AudioOutputDescriptor> outputDesc = NULL; 966 967 for (size_t i = 0; i < mOutputs.size(); i++) { 968 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 969 if (!desc->isDuplicated() && (profile == desc->mProfile)) { 970 outputDesc = desc; 971 // reuse direct output if currently open and configured with same parameters 972 if ((samplingRate == outputDesc->mSamplingRate) && 973 (format == outputDesc->mFormat) && 974 (channelMask == outputDesc->mChannelMask)) { 975 outputDesc->mDirectOpenCount++; 976 ALOGV("getOutput() reusing direct output %d", mOutputs.keyAt(i)); 977 return mOutputs.keyAt(i); 978 } 979 } 980 } 981 // close direct output if currently open and configured with different parameters 982 if (outputDesc != NULL) { 983 closeOutput(outputDesc->mIoHandle); 984 } 985 outputDesc = new AudioOutputDescriptor(profile); 986 outputDesc->mDevice = device; 987 outputDesc->mLatency = 0; 988 outputDesc->mFlags =(audio_output_flags_t) (outputDesc->mFlags | flags); 989 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 990 config.sample_rate = samplingRate; 991 config.channel_mask = channelMask; 992 config.format = format; 993 if (offloadInfo != NULL) { 994 config.offload_info = *offloadInfo; 995 } 996 status = mpClientInterface->openOutput(profile->mModule->mHandle, 997 &output, 998 &config, 999 &outputDesc->mDevice, 1000 String8(""), 1001 &outputDesc->mLatency, 1002 outputDesc->mFlags); 1003 1004 // only accept an output with the requested parameters 1005 if (status != NO_ERROR || 1006 (samplingRate != 0 && samplingRate != config.sample_rate) || 1007 (format != AUDIO_FORMAT_DEFAULT && format != config.format) || 1008 (channelMask != 0 && channelMask != config.channel_mask)) { 1009 ALOGV("getOutput() failed opening direct output: output %d samplingRate %d %d," 1010 "format %d %d, channelMask %04x %04x", output, samplingRate, 1011 outputDesc->mSamplingRate, format, outputDesc->mFormat, channelMask, 1012 outputDesc->mChannelMask); 1013 if (output != AUDIO_IO_HANDLE_NONE) { 1014 mpClientInterface->closeOutput(output); 1015 } 1016 return AUDIO_IO_HANDLE_NONE; 1017 } 1018 outputDesc->mSamplingRate = config.sample_rate; 1019 outputDesc->mChannelMask = config.channel_mask; 1020 outputDesc->mFormat = config.format; 1021 outputDesc->mRefCount[stream] = 0; 1022 outputDesc->mStopTime[stream] = 0; 1023 outputDesc->mDirectOpenCount = 1; 1024 1025 audio_io_handle_t srcOutput = getOutputForEffect(); 1026 addOutput(output, outputDesc); 1027 audio_io_handle_t dstOutput = getOutputForEffect(); 1028 if (dstOutput == output) { 1029 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, srcOutput, dstOutput); 1030 } 1031 mPreviousOutputs = mOutputs; 1032 ALOGV("getOutput() returns new direct output %d", output); 1033 mpClientInterface->onAudioPortListUpdate(); 1034 return output; 1035 } 1036 1037non_direct_output: 1038 1039 // ignoring channel mask due to downmix capability in mixer 1040 1041 // open a non direct output 1042 1043 // for non direct outputs, only PCM is supported 1044 if (audio_is_linear_pcm(format)) { 1045 // get which output is suitable for the specified stream. The actual 1046 // routing change will happen when startOutput() will be called 1047 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(device, mOutputs); 1048 1049 // at this stage we should ignore the DIRECT flag as no direct output could be found earlier 1050 flags = (audio_output_flags_t)(flags & ~AUDIO_OUTPUT_FLAG_DIRECT); 1051 output = selectOutput(outputs, flags, format); 1052 } 1053 ALOGW_IF((output == 0), "getOutput() could not find output for stream %d, samplingRate %d," 1054 "format %d, channels %x, flags %x", stream, samplingRate, format, channelMask, flags); 1055 1056 ALOGV("getOutput() returns output %d", output); 1057 1058 return output; 1059} 1060 1061audio_io_handle_t AudioPolicyManager::selectOutput(const SortedVector<audio_io_handle_t>& outputs, 1062 audio_output_flags_t flags, 1063 audio_format_t format) 1064{ 1065 // select one output among several that provide a path to a particular device or set of 1066 // devices (the list was previously build by getOutputsForDevice()). 1067 // The priority is as follows: 1068 // 1: the output with the highest number of requested policy flags 1069 // 2: the primary output 1070 // 3: the first output in the list 1071 1072 if (outputs.size() == 0) { 1073 return 0; 1074 } 1075 if (outputs.size() == 1) { 1076 return outputs[0]; 1077 } 1078 1079 int maxCommonFlags = 0; 1080 audio_io_handle_t outputFlags = 0; 1081 audio_io_handle_t outputPrimary = 0; 1082 1083 for (size_t i = 0; i < outputs.size(); i++) { 1084 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 1085 if (!outputDesc->isDuplicated()) { 1086 // if a valid format is specified, skip output if not compatible 1087 if (format != AUDIO_FORMAT_INVALID) { 1088 if (outputDesc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 1089 if (format != outputDesc->mFormat) { 1090 continue; 1091 } 1092 } else if (!audio_is_linear_pcm(format)) { 1093 continue; 1094 } 1095 } 1096 1097 int commonFlags = popcount(outputDesc->mProfile->mFlags & flags); 1098 if (commonFlags > maxCommonFlags) { 1099 outputFlags = outputs[i]; 1100 maxCommonFlags = commonFlags; 1101 ALOGV("selectOutput() commonFlags for output %d, %04x", outputs[i], commonFlags); 1102 } 1103 if (outputDesc->mProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 1104 outputPrimary = outputs[i]; 1105 } 1106 } 1107 } 1108 1109 if (outputFlags != 0) { 1110 return outputFlags; 1111 } 1112 if (outputPrimary != 0) { 1113 return outputPrimary; 1114 } 1115 1116 return outputs[0]; 1117} 1118 1119status_t AudioPolicyManager::startOutput(audio_io_handle_t output, 1120 audio_stream_type_t stream, 1121 int session) 1122{ 1123 ALOGV("startOutput() output %d, stream %d, session %d", output, stream, session); 1124 ssize_t index = mOutputs.indexOfKey(output); 1125 if (index < 0) { 1126 ALOGW("startOutput() unknown output %d", output); 1127 return BAD_VALUE; 1128 } 1129 1130 // cannot start playback of STREAM_TTS if any other output is being used 1131 uint32_t beaconMuteLatency = 0; 1132 if (stream == AUDIO_STREAM_TTS) { 1133 ALOGV("\t found BEACON stream"); 1134 if (isAnyOutputActive(AUDIO_STREAM_TTS /*streamToIgnore*/)) { 1135 return INVALID_OPERATION; 1136 } else { 1137 beaconMuteLatency = handleEventForBeacon(STARTING_BEACON); 1138 } 1139 } else { 1140 // some playback other than beacon starts 1141 beaconMuteLatency = handleEventForBeacon(STARTING_OUTPUT); 1142 } 1143 1144 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1145 1146 // increment usage count for this stream on the requested output: 1147 // NOTE that the usage count is the same for duplicated output and hardware output which is 1148 // necessary for a correct control of hardware output routing by startOutput() and stopOutput() 1149 outputDesc->changeRefCount(stream, 1); 1150 1151 if (outputDesc->mRefCount[stream] == 1) { 1152 audio_devices_t newDevice = getNewOutputDevice(output, false /*fromCache*/); 1153 routing_strategy strategy = getStrategy(stream); 1154 bool shouldWait = (strategy == STRATEGY_SONIFICATION) || 1155 (strategy == STRATEGY_SONIFICATION_RESPECTFUL) || 1156 (beaconMuteLatency > 0); 1157 uint32_t waitMs = beaconMuteLatency; 1158 bool force = false; 1159 for (size_t i = 0; i < mOutputs.size(); i++) { 1160 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1161 if (desc != outputDesc) { 1162 // force a device change if any other output is managed by the same hw 1163 // module and has a current device selection that differs from selected device. 1164 // In this case, the audio HAL must receive the new device selection so that it can 1165 // change the device currently selected by the other active output. 1166 if (outputDesc->sharesHwModuleWith(desc) && 1167 desc->device() != newDevice) { 1168 force = true; 1169 } 1170 // wait for audio on other active outputs to be presented when starting 1171 // a notification so that audio focus effect can propagate, or that a mute/unmute 1172 // event occurred for beacon 1173 uint32_t latency = desc->latency(); 1174 if (shouldWait && desc->isActive(latency * 2) && (waitMs < latency)) { 1175 waitMs = latency; 1176 } 1177 } 1178 } 1179 uint32_t muteWaitMs = setOutputDevice(output, newDevice, force); 1180 1181 // handle special case for sonification while in call 1182 if (isInCall()) { 1183 handleIncallSonification(stream, true, false); 1184 } 1185 1186 // apply volume rules for current stream and device if necessary 1187 checkAndSetVolume(stream, 1188 mStreams[stream].getVolumeIndex(newDevice), 1189 output, 1190 newDevice); 1191 1192 // update the outputs if starting an output with a stream that can affect notification 1193 // routing 1194 handleNotificationRoutingForStream(stream); 1195 if (waitMs > muteWaitMs) { 1196 usleep((waitMs - muteWaitMs) * 2 * 1000); 1197 } 1198 } 1199 return NO_ERROR; 1200} 1201 1202 1203status_t AudioPolicyManager::stopOutput(audio_io_handle_t output, 1204 audio_stream_type_t stream, 1205 int session) 1206{ 1207 ALOGV("stopOutput() output %d, stream %d, session %d", output, stream, session); 1208 ssize_t index = mOutputs.indexOfKey(output); 1209 if (index < 0) { 1210 ALOGW("stopOutput() unknown output %d", output); 1211 return BAD_VALUE; 1212 } 1213 1214 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1215 1216 // always handle stream stop, check which stream type is stopping 1217 handleEventForBeacon(stream == AUDIO_STREAM_TTS ? STOPPING_BEACON : STOPPING_OUTPUT); 1218 1219 // handle special case for sonification while in call 1220 if (isInCall()) { 1221 handleIncallSonification(stream, false, false); 1222 } 1223 1224 if (outputDesc->mRefCount[stream] > 0) { 1225 // decrement usage count of this stream on the output 1226 outputDesc->changeRefCount(stream, -1); 1227 // store time at which the stream was stopped - see isStreamActive() 1228 if (outputDesc->mRefCount[stream] == 0) { 1229 outputDesc->mStopTime[stream] = systemTime(); 1230 audio_devices_t newDevice = getNewOutputDevice(output, false /*fromCache*/); 1231 // delay the device switch by twice the latency because stopOutput() is executed when 1232 // the track stop() command is received and at that time the audio track buffer can 1233 // still contain data that needs to be drained. The latency only covers the audio HAL 1234 // and kernel buffers. Also the latency does not always include additional delay in the 1235 // audio path (audio DSP, CODEC ...) 1236 setOutputDevice(output, newDevice, false, outputDesc->mLatency*2); 1237 1238 // force restoring the device selection on other active outputs if it differs from the 1239 // one being selected for this output 1240 for (size_t i = 0; i < mOutputs.size(); i++) { 1241 audio_io_handle_t curOutput = mOutputs.keyAt(i); 1242 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1243 if (curOutput != output && 1244 desc->isActive() && 1245 outputDesc->sharesHwModuleWith(desc) && 1246 (newDevice != desc->device())) { 1247 setOutputDevice(curOutput, 1248 getNewOutputDevice(curOutput, false /*fromCache*/), 1249 true, 1250 outputDesc->mLatency*2); 1251 } 1252 } 1253 // update the outputs if stopping one with a stream that can affect notification routing 1254 handleNotificationRoutingForStream(stream); 1255 } 1256 return NO_ERROR; 1257 } else { 1258 ALOGW("stopOutput() refcount is already 0 for output %d", output); 1259 return INVALID_OPERATION; 1260 } 1261} 1262 1263void AudioPolicyManager::releaseOutput(audio_io_handle_t output) 1264{ 1265 ALOGV("releaseOutput() %d", output); 1266 ssize_t index = mOutputs.indexOfKey(output); 1267 if (index < 0) { 1268 ALOGW("releaseOutput() releasing unknown output %d", output); 1269 return; 1270 } 1271 1272#ifdef AUDIO_POLICY_TEST 1273 int testIndex = testOutputIndex(output); 1274 if (testIndex != 0) { 1275 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1276 if (outputDesc->isActive()) { 1277 mpClientInterface->closeOutput(output); 1278 mOutputs.removeItem(output); 1279 mTestOutputs[testIndex] = 0; 1280 } 1281 return; 1282 } 1283#endif //AUDIO_POLICY_TEST 1284 1285 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(index); 1286 if (desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 1287 if (desc->mDirectOpenCount <= 0) { 1288 ALOGW("releaseOutput() invalid open count %d for output %d", 1289 desc->mDirectOpenCount, output); 1290 return; 1291 } 1292 if (--desc->mDirectOpenCount == 0) { 1293 closeOutput(output); 1294 // If effects where present on the output, audioflinger moved them to the primary 1295 // output by default: move them back to the appropriate output. 1296 audio_io_handle_t dstOutput = getOutputForEffect(); 1297 if (dstOutput != mPrimaryOutput) { 1298 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, mPrimaryOutput, dstOutput); 1299 } 1300 mpClientInterface->onAudioPortListUpdate(); 1301 } 1302 } 1303} 1304 1305 1306audio_io_handle_t AudioPolicyManager::getInput(audio_source_t inputSource, 1307 uint32_t samplingRate, 1308 audio_format_t format, 1309 audio_channel_mask_t channelMask, 1310 audio_session_t session, 1311 audio_input_flags_t flags) 1312{ 1313 ALOGV("getInput() inputSource %d, samplingRate %d, format %d, channelMask %x, session %d, " 1314 "flags %#x", 1315 inputSource, samplingRate, format, channelMask, session, flags); 1316 1317 audio_devices_t device = getDeviceForInputSource(inputSource); 1318 1319 if (device == AUDIO_DEVICE_NONE) { 1320 ALOGW("getInput() could not find device for inputSource %d", inputSource); 1321 return AUDIO_IO_HANDLE_NONE; 1322 } 1323 1324 // adapt channel selection to input source 1325 switch (inputSource) { 1326 case AUDIO_SOURCE_VOICE_UPLINK: 1327 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK; 1328 break; 1329 case AUDIO_SOURCE_VOICE_DOWNLINK: 1330 channelMask = AUDIO_CHANNEL_IN_VOICE_DNLINK; 1331 break; 1332 case AUDIO_SOURCE_VOICE_CALL: 1333 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK | AUDIO_CHANNEL_IN_VOICE_DNLINK; 1334 break; 1335 default: 1336 break; 1337 } 1338 1339 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 1340 bool isSoundTrigger = false; 1341 audio_source_t halInputSource = inputSource; 1342 if (inputSource == AUDIO_SOURCE_HOTWORD) { 1343 ssize_t index = mSoundTriggerSessions.indexOfKey(session); 1344 if (index >= 0) { 1345 input = mSoundTriggerSessions.valueFor(session); 1346 isSoundTrigger = true; 1347 flags = (audio_input_flags_t)(flags | AUDIO_INPUT_FLAG_HW_HOTWORD); 1348 ALOGV("SoundTrigger capture on session %d input %d", session, input); 1349 } else { 1350 halInputSource = AUDIO_SOURCE_VOICE_RECOGNITION; 1351 } 1352 } 1353 1354 sp<IOProfile> profile = getInputProfile(device, 1355 samplingRate, 1356 format, 1357 channelMask, 1358 flags); 1359 if (profile == 0) { 1360 //retry without flags 1361 audio_input_flags_t log_flags = flags; 1362 flags = AUDIO_INPUT_FLAG_NONE; 1363 profile = getInputProfile(device, 1364 samplingRate, 1365 format, 1366 channelMask, 1367 flags); 1368 if (profile == 0) { 1369 ALOGW("getInput() could not find profile for device 0x%X, samplingRate %u, format %#x, " 1370 "channelMask 0x%X, flags %#x", 1371 device, samplingRate, format, channelMask, log_flags); 1372 return AUDIO_IO_HANDLE_NONE; 1373 } 1374 } 1375 1376 if (profile->mModule->mHandle == 0) { 1377 ALOGE("getInput(): HW module %s not opened", profile->mModule->mName); 1378 return AUDIO_IO_HANDLE_NONE; 1379 } 1380 1381 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 1382 config.sample_rate = samplingRate; 1383 config.channel_mask = channelMask; 1384 config.format = format; 1385 1386 // handle legacy remote submix case where the address was not always specified 1387 String8 address = deviceDistinguishesOnAddress(device) ? String8("0") : String8(""); 1388 1389 status_t status = mpClientInterface->openInput(profile->mModule->mHandle, 1390 &input, 1391 &config, 1392 &device, 1393 address, 1394 halInputSource, 1395 flags); 1396 1397 // only accept input with the exact requested set of parameters 1398 if (status != NO_ERROR || 1399 (samplingRate != config.sample_rate) || 1400 (format != config.format) || 1401 (channelMask != config.channel_mask)) { 1402 ALOGW("getInput() failed opening input: samplingRate %d, format %d, channelMask %x", 1403 samplingRate, format, channelMask); 1404 if (input != AUDIO_IO_HANDLE_NONE) { 1405 mpClientInterface->closeInput(input); 1406 } 1407 return AUDIO_IO_HANDLE_NONE; 1408 } 1409 1410 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(profile); 1411 inputDesc->mInputSource = inputSource; 1412 inputDesc->mRefCount = 0; 1413 inputDesc->mOpenRefCount = 1; 1414 inputDesc->mSamplingRate = samplingRate; 1415 inputDesc->mFormat = format; 1416 inputDesc->mChannelMask = channelMask; 1417 inputDesc->mDevice = device; 1418 inputDesc->mSessions.add(session); 1419 inputDesc->mIsSoundTrigger = isSoundTrigger; 1420 1421 addInput(input, inputDesc); 1422 mpClientInterface->onAudioPortListUpdate(); 1423 return input; 1424} 1425 1426status_t AudioPolicyManager::startInput(audio_io_handle_t input, 1427 audio_session_t session) 1428{ 1429 ALOGV("startInput() input %d", input); 1430 ssize_t index = mInputs.indexOfKey(input); 1431 if (index < 0) { 1432 ALOGW("startInput() unknown input %d", input); 1433 return BAD_VALUE; 1434 } 1435 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1436 1437 index = inputDesc->mSessions.indexOf(session); 1438 if (index < 0) { 1439 ALOGW("startInput() unknown session %d on input %d", session, input); 1440 return BAD_VALUE; 1441 } 1442 1443 // virtual input devices are compatible with other input devices 1444 if (!isVirtualInputDevice(inputDesc->mDevice)) { 1445 1446 // for a non-virtual input device, check if there is another (non-virtual) active input 1447 audio_io_handle_t activeInput = getActiveInput(); 1448 if (activeInput != 0 && activeInput != input) { 1449 1450 // If the already active input uses AUDIO_SOURCE_HOTWORD then it is closed, 1451 // otherwise the active input continues and the new input cannot be started. 1452 sp<AudioInputDescriptor> activeDesc = mInputs.valueFor(activeInput); 1453 if (activeDesc->mInputSource == AUDIO_SOURCE_HOTWORD) { 1454 ALOGW("startInput(%d) preempting low-priority input %d", input, activeInput); 1455 stopInput(activeInput, activeDesc->mSessions.itemAt(0)); 1456 releaseInput(activeInput, activeDesc->mSessions.itemAt(0)); 1457 } else { 1458 ALOGE("startInput(%d) failed: other input %d already started", input, activeInput); 1459 return INVALID_OPERATION; 1460 } 1461 } 1462 } 1463 1464 if (inputDesc->mRefCount == 0) { 1465 if (activeInputsCount() == 0) { 1466 SoundTrigger::setCaptureState(true); 1467 } 1468 setInputDevice(input, getNewInputDevice(input), true /* force */); 1469 1470 // Automatically enable the remote submix output when input is started. 1471 // For remote submix (a virtual device), we open only one input per capture request. 1472 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1473 setDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1474 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, AUDIO_REMOTE_SUBMIX_DEVICE_ADDRESS); 1475 } 1476 } 1477 1478 ALOGV("AudioPolicyManager::startInput() input source = %d", inputDesc->mInputSource); 1479 1480 inputDesc->mRefCount++; 1481 return NO_ERROR; 1482} 1483 1484status_t AudioPolicyManager::stopInput(audio_io_handle_t input, 1485 audio_session_t session) 1486{ 1487 ALOGV("stopInput() input %d", input); 1488 ssize_t index = mInputs.indexOfKey(input); 1489 if (index < 0) { 1490 ALOGW("stopInput() unknown input %d", input); 1491 return BAD_VALUE; 1492 } 1493 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1494 1495 index = inputDesc->mSessions.indexOf(session); 1496 if (index < 0) { 1497 ALOGW("stopInput() unknown session %d on input %d", session, input); 1498 return BAD_VALUE; 1499 } 1500 1501 if (inputDesc->mRefCount == 0) { 1502 ALOGW("stopInput() input %d already stopped", input); 1503 return INVALID_OPERATION; 1504 } 1505 1506 inputDesc->mRefCount--; 1507 if (inputDesc->mRefCount == 0) { 1508 1509 // automatically disable the remote submix output when input is stopped 1510 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1511 setDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1512 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, AUDIO_REMOTE_SUBMIX_DEVICE_ADDRESS); 1513 } 1514 1515 resetInputDevice(input); 1516 1517 if (activeInputsCount() == 0) { 1518 SoundTrigger::setCaptureState(false); 1519 } 1520 } 1521 return NO_ERROR; 1522} 1523 1524void AudioPolicyManager::releaseInput(audio_io_handle_t input, 1525 audio_session_t session) 1526{ 1527 ALOGV("releaseInput() %d", input); 1528 ssize_t index = mInputs.indexOfKey(input); 1529 if (index < 0) { 1530 ALOGW("releaseInput() releasing unknown input %d", input); 1531 return; 1532 } 1533 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1534 ALOG_ASSERT(inputDesc != 0); 1535 1536 index = inputDesc->mSessions.indexOf(session); 1537 if (index < 0) { 1538 ALOGW("releaseInput() unknown session %d on input %d", session, input); 1539 return; 1540 } 1541 inputDesc->mSessions.remove(session); 1542 if (inputDesc->mOpenRefCount == 0) { 1543 ALOGW("releaseInput() invalid open ref count %d", inputDesc->mOpenRefCount); 1544 return; 1545 } 1546 inputDesc->mOpenRefCount--; 1547 if (inputDesc->mOpenRefCount > 0) { 1548 ALOGV("releaseInput() exit > 0"); 1549 return; 1550 } 1551 1552 closeInput(input); 1553 mpClientInterface->onAudioPortListUpdate(); 1554 ALOGV("releaseInput() exit"); 1555} 1556 1557void AudioPolicyManager::closeAllInputs() { 1558 bool patchRemoved = false; 1559 1560 for(size_t input_index = 0; input_index < mInputs.size(); input_index++) { 1561 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(input_index); 1562 ssize_t patch_index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 1563 if (patch_index >= 0) { 1564 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(patch_index); 1565 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 1566 mAudioPatches.removeItemsAt(patch_index); 1567 patchRemoved = true; 1568 } 1569 mpClientInterface->closeInput(mInputs.keyAt(input_index)); 1570 } 1571 mInputs.clear(); 1572 nextAudioPortGeneration(); 1573 1574 if (patchRemoved) { 1575 mpClientInterface->onAudioPatchListUpdate(); 1576 } 1577} 1578 1579void AudioPolicyManager::initStreamVolume(audio_stream_type_t stream, 1580 int indexMin, 1581 int indexMax) 1582{ 1583 ALOGV("initStreamVolume() stream %d, min %d, max %d", stream , indexMin, indexMax); 1584 if (indexMin < 0 || indexMin >= indexMax) { 1585 ALOGW("initStreamVolume() invalid index limits for stream %d, min %d, max %d", stream , indexMin, indexMax); 1586 return; 1587 } 1588 mStreams[stream].mIndexMin = indexMin; 1589 mStreams[stream].mIndexMax = indexMax; 1590} 1591 1592status_t AudioPolicyManager::setStreamVolumeIndex(audio_stream_type_t stream, 1593 int index, 1594 audio_devices_t device) 1595{ 1596 1597 if ((index < mStreams[stream].mIndexMin) || (index > mStreams[stream].mIndexMax)) { 1598 return BAD_VALUE; 1599 } 1600 if (!audio_is_output_device(device)) { 1601 return BAD_VALUE; 1602 } 1603 1604 // Force max volume if stream cannot be muted 1605 if (!mStreams[stream].mCanBeMuted) index = mStreams[stream].mIndexMax; 1606 1607 ALOGV("setStreamVolumeIndex() stream %d, device %04x, index %d", 1608 stream, device, index); 1609 1610 // if device is AUDIO_DEVICE_OUT_DEFAULT set default value and 1611 // clear all device specific values 1612 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1613 mStreams[stream].mIndexCur.clear(); 1614 } 1615 mStreams[stream].mIndexCur.add(device, index); 1616 1617 // update volume on all outputs whose current device is also selected by the same 1618 // strategy as the device specified by the caller 1619 audio_devices_t strategyDevice = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1620 if ((device != AUDIO_DEVICE_OUT_DEFAULT) && (device & strategyDevice) == 0) { 1621 return NO_ERROR; 1622 } 1623 status_t status = NO_ERROR; 1624 for (size_t i = 0; i < mOutputs.size(); i++) { 1625 audio_devices_t curDevice = 1626 getDeviceForVolume(mOutputs.valueAt(i)->device()); 1627 if ((device == AUDIO_DEVICE_OUT_DEFAULT) || ((curDevice & strategyDevice) != 0)) { 1628 status_t volStatus = checkAndSetVolume(stream, index, mOutputs.keyAt(i), curDevice); 1629 if (volStatus != NO_ERROR) { 1630 status = volStatus; 1631 } 1632 } 1633 } 1634 return status; 1635} 1636 1637status_t AudioPolicyManager::getStreamVolumeIndex(audio_stream_type_t stream, 1638 int *index, 1639 audio_devices_t device) 1640{ 1641 if (index == NULL) { 1642 return BAD_VALUE; 1643 } 1644 if (!audio_is_output_device(device)) { 1645 return BAD_VALUE; 1646 } 1647 // if device is AUDIO_DEVICE_OUT_DEFAULT, return volume for device corresponding to 1648 // the strategy the stream belongs to. 1649 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1650 device = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1651 } 1652 device = getDeviceForVolume(device); 1653 1654 *index = mStreams[stream].getVolumeIndex(device); 1655 ALOGV("getStreamVolumeIndex() stream %d device %08x index %d", stream, device, *index); 1656 return NO_ERROR; 1657} 1658 1659audio_io_handle_t AudioPolicyManager::selectOutputForEffects( 1660 const SortedVector<audio_io_handle_t>& outputs) 1661{ 1662 // select one output among several suitable for global effects. 1663 // The priority is as follows: 1664 // 1: An offloaded output. If the effect ends up not being offloadable, 1665 // AudioFlinger will invalidate the track and the offloaded output 1666 // will be closed causing the effect to be moved to a PCM output. 1667 // 2: A deep buffer output 1668 // 3: the first output in the list 1669 1670 if (outputs.size() == 0) { 1671 return 0; 1672 } 1673 1674 audio_io_handle_t outputOffloaded = 0; 1675 audio_io_handle_t outputDeepBuffer = 0; 1676 1677 for (size_t i = 0; i < outputs.size(); i++) { 1678 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 1679 ALOGV("selectOutputForEffects outputs[%zu] flags %x", i, desc->mFlags); 1680 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1681 outputOffloaded = outputs[i]; 1682 } 1683 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) != 0) { 1684 outputDeepBuffer = outputs[i]; 1685 } 1686 } 1687 1688 ALOGV("selectOutputForEffects outputOffloaded %d outputDeepBuffer %d", 1689 outputOffloaded, outputDeepBuffer); 1690 if (outputOffloaded != 0) { 1691 return outputOffloaded; 1692 } 1693 if (outputDeepBuffer != 0) { 1694 return outputDeepBuffer; 1695 } 1696 1697 return outputs[0]; 1698} 1699 1700audio_io_handle_t AudioPolicyManager::getOutputForEffect(const effect_descriptor_t *desc) 1701{ 1702 // apply simple rule where global effects are attached to the same output as MUSIC streams 1703 1704 routing_strategy strategy = getStrategy(AUDIO_STREAM_MUSIC); 1705 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 1706 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(device, mOutputs); 1707 1708 audio_io_handle_t output = selectOutputForEffects(dstOutputs); 1709 ALOGV("getOutputForEffect() got output %d for fx %s flags %x", 1710 output, (desc == NULL) ? "unspecified" : desc->name, (desc == NULL) ? 0 : desc->flags); 1711 1712 return output; 1713} 1714 1715status_t AudioPolicyManager::registerEffect(const effect_descriptor_t *desc, 1716 audio_io_handle_t io, 1717 uint32_t strategy, 1718 int session, 1719 int id) 1720{ 1721 ssize_t index = mOutputs.indexOfKey(io); 1722 if (index < 0) { 1723 index = mInputs.indexOfKey(io); 1724 if (index < 0) { 1725 ALOGW("registerEffect() unknown io %d", io); 1726 return INVALID_OPERATION; 1727 } 1728 } 1729 1730 if (mTotalEffectsMemory + desc->memoryUsage > getMaxEffectsMemory()) { 1731 ALOGW("registerEffect() memory limit exceeded for Fx %s, Memory %d KB", 1732 desc->name, desc->memoryUsage); 1733 return INVALID_OPERATION; 1734 } 1735 mTotalEffectsMemory += desc->memoryUsage; 1736 ALOGV("registerEffect() effect %s, io %d, strategy %d session %d id %d", 1737 desc->name, io, strategy, session, id); 1738 ALOGV("registerEffect() memory %d, total memory %d", desc->memoryUsage, mTotalEffectsMemory); 1739 1740 sp<EffectDescriptor> effectDesc = new EffectDescriptor(); 1741 memcpy (&effectDesc->mDesc, desc, sizeof(effect_descriptor_t)); 1742 effectDesc->mIo = io; 1743 effectDesc->mStrategy = (routing_strategy)strategy; 1744 effectDesc->mSession = session; 1745 effectDesc->mEnabled = false; 1746 1747 mEffects.add(id, effectDesc); 1748 1749 return NO_ERROR; 1750} 1751 1752status_t AudioPolicyManager::unregisterEffect(int id) 1753{ 1754 ssize_t index = mEffects.indexOfKey(id); 1755 if (index < 0) { 1756 ALOGW("unregisterEffect() unknown effect ID %d", id); 1757 return INVALID_OPERATION; 1758 } 1759 1760 sp<EffectDescriptor> effectDesc = mEffects.valueAt(index); 1761 1762 setEffectEnabled(effectDesc, false); 1763 1764 if (mTotalEffectsMemory < effectDesc->mDesc.memoryUsage) { 1765 ALOGW("unregisterEffect() memory %d too big for total %d", 1766 effectDesc->mDesc.memoryUsage, mTotalEffectsMemory); 1767 effectDesc->mDesc.memoryUsage = mTotalEffectsMemory; 1768 } 1769 mTotalEffectsMemory -= effectDesc->mDesc.memoryUsage; 1770 ALOGV("unregisterEffect() effect %s, ID %d, memory %d total memory %d", 1771 effectDesc->mDesc.name, id, effectDesc->mDesc.memoryUsage, mTotalEffectsMemory); 1772 1773 mEffects.removeItem(id); 1774 1775 return NO_ERROR; 1776} 1777 1778status_t AudioPolicyManager::setEffectEnabled(int id, bool enabled) 1779{ 1780 ssize_t index = mEffects.indexOfKey(id); 1781 if (index < 0) { 1782 ALOGW("unregisterEffect() unknown effect ID %d", id); 1783 return INVALID_OPERATION; 1784 } 1785 1786 return setEffectEnabled(mEffects.valueAt(index), enabled); 1787} 1788 1789status_t AudioPolicyManager::setEffectEnabled(const sp<EffectDescriptor>& effectDesc, bool enabled) 1790{ 1791 if (enabled == effectDesc->mEnabled) { 1792 ALOGV("setEffectEnabled(%s) effect already %s", 1793 enabled?"true":"false", enabled?"enabled":"disabled"); 1794 return INVALID_OPERATION; 1795 } 1796 1797 if (enabled) { 1798 if (mTotalEffectsCpuLoad + effectDesc->mDesc.cpuLoad > getMaxEffectsCpuLoad()) { 1799 ALOGW("setEffectEnabled(true) CPU Load limit exceeded for Fx %s, CPU %f MIPS", 1800 effectDesc->mDesc.name, (float)effectDesc->mDesc.cpuLoad/10); 1801 return INVALID_OPERATION; 1802 } 1803 mTotalEffectsCpuLoad += effectDesc->mDesc.cpuLoad; 1804 ALOGV("setEffectEnabled(true) total CPU %d", mTotalEffectsCpuLoad); 1805 } else { 1806 if (mTotalEffectsCpuLoad < effectDesc->mDesc.cpuLoad) { 1807 ALOGW("setEffectEnabled(false) CPU load %d too high for total %d", 1808 effectDesc->mDesc.cpuLoad, mTotalEffectsCpuLoad); 1809 effectDesc->mDesc.cpuLoad = mTotalEffectsCpuLoad; 1810 } 1811 mTotalEffectsCpuLoad -= effectDesc->mDesc.cpuLoad; 1812 ALOGV("setEffectEnabled(false) total CPU %d", mTotalEffectsCpuLoad); 1813 } 1814 effectDesc->mEnabled = enabled; 1815 return NO_ERROR; 1816} 1817 1818bool AudioPolicyManager::isNonOffloadableEffectEnabled() 1819{ 1820 for (size_t i = 0; i < mEffects.size(); i++) { 1821 sp<EffectDescriptor> effectDesc = mEffects.valueAt(i); 1822 if (effectDesc->mEnabled && (effectDesc->mStrategy == STRATEGY_MEDIA) && 1823 ((effectDesc->mDesc.flags & EFFECT_FLAG_OFFLOAD_SUPPORTED) == 0)) { 1824 ALOGV("isNonOffloadableEffectEnabled() non offloadable effect %s enabled on session %d", 1825 effectDesc->mDesc.name, effectDesc->mSession); 1826 return true; 1827 } 1828 } 1829 return false; 1830} 1831 1832bool AudioPolicyManager::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const 1833{ 1834 nsecs_t sysTime = systemTime(); 1835 for (size_t i = 0; i < mOutputs.size(); i++) { 1836 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 1837 if (outputDesc->isStreamActive(stream, inPastMs, sysTime)) { 1838 return true; 1839 } 1840 } 1841 return false; 1842} 1843 1844bool AudioPolicyManager::isStreamActiveRemotely(audio_stream_type_t stream, 1845 uint32_t inPastMs) const 1846{ 1847 nsecs_t sysTime = systemTime(); 1848 for (size_t i = 0; i < mOutputs.size(); i++) { 1849 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 1850 if (((outputDesc->device() & APM_AUDIO_OUT_DEVICE_REMOTE_ALL) != 0) && 1851 outputDesc->isStreamActive(stream, inPastMs, sysTime)) { 1852 return true; 1853 } 1854 } 1855 return false; 1856} 1857 1858bool AudioPolicyManager::isSourceActive(audio_source_t source) const 1859{ 1860 for (size_t i = 0; i < mInputs.size(); i++) { 1861 const sp<AudioInputDescriptor> inputDescriptor = mInputs.valueAt(i); 1862 if ((inputDescriptor->mInputSource == (int)source || 1863 (source == AUDIO_SOURCE_VOICE_RECOGNITION && 1864 inputDescriptor->mInputSource == AUDIO_SOURCE_HOTWORD)) 1865 && (inputDescriptor->mRefCount > 0)) { 1866 return true; 1867 } 1868 } 1869 return false; 1870} 1871 1872 1873status_t AudioPolicyManager::dump(int fd) 1874{ 1875 const size_t SIZE = 256; 1876 char buffer[SIZE]; 1877 String8 result; 1878 1879 snprintf(buffer, SIZE, "\nAudioPolicyManager Dump: %p\n", this); 1880 result.append(buffer); 1881 1882 snprintf(buffer, SIZE, " Primary Output: %d\n", mPrimaryOutput); 1883 result.append(buffer); 1884 snprintf(buffer, SIZE, " Phone state: %d\n", mPhoneState); 1885 result.append(buffer); 1886 snprintf(buffer, SIZE, " Force use for communications %d\n", 1887 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]); 1888 result.append(buffer); 1889 snprintf(buffer, SIZE, " Force use for media %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA]); 1890 result.append(buffer); 1891 snprintf(buffer, SIZE, " Force use for record %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD]); 1892 result.append(buffer); 1893 snprintf(buffer, SIZE, " Force use for dock %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK]); 1894 result.append(buffer); 1895 snprintf(buffer, SIZE, " Force use for system %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM]); 1896 result.append(buffer); 1897 snprintf(buffer, SIZE, " Force use for hdmi system audio %d\n", 1898 mForceUse[AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO]); 1899 result.append(buffer); 1900 1901 snprintf(buffer, SIZE, " Available output devices:\n"); 1902 result.append(buffer); 1903 write(fd, result.string(), result.size()); 1904 for (size_t i = 0; i < mAvailableOutputDevices.size(); i++) { 1905 mAvailableOutputDevices[i]->dump(fd, 2, i); 1906 } 1907 snprintf(buffer, SIZE, "\n Available input devices:\n"); 1908 write(fd, buffer, strlen(buffer)); 1909 for (size_t i = 0; i < mAvailableInputDevices.size(); i++) { 1910 mAvailableInputDevices[i]->dump(fd, 2, i); 1911 } 1912 1913 snprintf(buffer, SIZE, "\nHW Modules dump:\n"); 1914 write(fd, buffer, strlen(buffer)); 1915 for (size_t i = 0; i < mHwModules.size(); i++) { 1916 snprintf(buffer, SIZE, "- HW Module %zu:\n", i + 1); 1917 write(fd, buffer, strlen(buffer)); 1918 mHwModules[i]->dump(fd); 1919 } 1920 1921 snprintf(buffer, SIZE, "\nOutputs dump:\n"); 1922 write(fd, buffer, strlen(buffer)); 1923 for (size_t i = 0; i < mOutputs.size(); i++) { 1924 snprintf(buffer, SIZE, "- Output %d dump:\n", mOutputs.keyAt(i)); 1925 write(fd, buffer, strlen(buffer)); 1926 mOutputs.valueAt(i)->dump(fd); 1927 } 1928 1929 snprintf(buffer, SIZE, "\nInputs dump:\n"); 1930 write(fd, buffer, strlen(buffer)); 1931 for (size_t i = 0; i < mInputs.size(); i++) { 1932 snprintf(buffer, SIZE, "- Input %d dump:\n", mInputs.keyAt(i)); 1933 write(fd, buffer, strlen(buffer)); 1934 mInputs.valueAt(i)->dump(fd); 1935 } 1936 1937 snprintf(buffer, SIZE, "\nStreams dump:\n"); 1938 write(fd, buffer, strlen(buffer)); 1939 snprintf(buffer, SIZE, 1940 " Stream Can be muted Index Min Index Max Index Cur [device : index]...\n"); 1941 write(fd, buffer, strlen(buffer)); 1942 for (size_t i = 0; i < AUDIO_STREAM_CNT; i++) { 1943 snprintf(buffer, SIZE, " %02zu ", i); 1944 write(fd, buffer, strlen(buffer)); 1945 mStreams[i].dump(fd); 1946 } 1947 1948 snprintf(buffer, SIZE, "\nTotal Effects CPU: %f MIPS, Total Effects memory: %d KB\n", 1949 (float)mTotalEffectsCpuLoad/10, mTotalEffectsMemory); 1950 write(fd, buffer, strlen(buffer)); 1951 1952 snprintf(buffer, SIZE, "Registered effects:\n"); 1953 write(fd, buffer, strlen(buffer)); 1954 for (size_t i = 0; i < mEffects.size(); i++) { 1955 snprintf(buffer, SIZE, "- Effect %d dump:\n", mEffects.keyAt(i)); 1956 write(fd, buffer, strlen(buffer)); 1957 mEffects.valueAt(i)->dump(fd); 1958 } 1959 1960 snprintf(buffer, SIZE, "\nAudio Patches:\n"); 1961 write(fd, buffer, strlen(buffer)); 1962 for (size_t i = 0; i < mAudioPatches.size(); i++) { 1963 mAudioPatches[i]->dump(fd, 2, i); 1964 } 1965 1966 return NO_ERROR; 1967} 1968 1969// This function checks for the parameters which can be offloaded. 1970// This can be enhanced depending on the capability of the DSP and policy 1971// of the system. 1972bool AudioPolicyManager::isOffloadSupported(const audio_offload_info_t& offloadInfo) 1973{ 1974 ALOGV("isOffloadSupported: SR=%u, CM=0x%x, Format=0x%x, StreamType=%d," 1975 " BitRate=%u, duration=%" PRId64 " us, has_video=%d", 1976 offloadInfo.sample_rate, offloadInfo.channel_mask, 1977 offloadInfo.format, 1978 offloadInfo.stream_type, offloadInfo.bit_rate, offloadInfo.duration_us, 1979 offloadInfo.has_video); 1980 1981 // Check if offload has been disabled 1982 char propValue[PROPERTY_VALUE_MAX]; 1983 if (property_get("audio.offload.disable", propValue, "0")) { 1984 if (atoi(propValue) != 0) { 1985 ALOGV("offload disabled by audio.offload.disable=%s", propValue ); 1986 return false; 1987 } 1988 } 1989 1990 // Check if stream type is music, then only allow offload as of now. 1991 if (offloadInfo.stream_type != AUDIO_STREAM_MUSIC) 1992 { 1993 ALOGV("isOffloadSupported: stream_type != MUSIC, returning false"); 1994 return false; 1995 } 1996 1997 //TODO: enable audio offloading with video when ready 1998 if (offloadInfo.has_video) 1999 { 2000 ALOGV("isOffloadSupported: has_video == true, returning false"); 2001 return false; 2002 } 2003 2004 //If duration is less than minimum value defined in property, return false 2005 if (property_get("audio.offload.min.duration.secs", propValue, NULL)) { 2006 if (offloadInfo.duration_us < (atoi(propValue) * 1000000 )) { 2007 ALOGV("Offload denied by duration < audio.offload.min.duration.secs(=%s)", propValue); 2008 return false; 2009 } 2010 } else if (offloadInfo.duration_us < OFFLOAD_DEFAULT_MIN_DURATION_SECS * 1000000) { 2011 ALOGV("Offload denied by duration < default min(=%u)", OFFLOAD_DEFAULT_MIN_DURATION_SECS); 2012 return false; 2013 } 2014 2015 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 2016 // creating an offloaded track and tearing it down immediately after start when audioflinger 2017 // detects there is an active non offloadable effect. 2018 // FIXME: We should check the audio session here but we do not have it in this context. 2019 // This may prevent offloading in rare situations where effects are left active by apps 2020 // in the background. 2021 if (isNonOffloadableEffectEnabled()) { 2022 return false; 2023 } 2024 2025 // See if there is a profile to support this. 2026 // AUDIO_DEVICE_NONE 2027 sp<IOProfile> profile = getProfileForDirectOutput(AUDIO_DEVICE_NONE /*ignore device */, 2028 offloadInfo.sample_rate, 2029 offloadInfo.format, 2030 offloadInfo.channel_mask, 2031 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD); 2032 ALOGV("isOffloadSupported() profile %sfound", profile != 0 ? "" : "NOT "); 2033 return (profile != 0); 2034} 2035 2036status_t AudioPolicyManager::listAudioPorts(audio_port_role_t role, 2037 audio_port_type_t type, 2038 unsigned int *num_ports, 2039 struct audio_port *ports, 2040 unsigned int *generation) 2041{ 2042 if (num_ports == NULL || (*num_ports != 0 && ports == NULL) || 2043 generation == NULL) { 2044 return BAD_VALUE; 2045 } 2046 ALOGV("listAudioPorts() role %d type %d num_ports %d ports %p", role, type, *num_ports, ports); 2047 if (ports == NULL) { 2048 *num_ports = 0; 2049 } 2050 2051 size_t portsWritten = 0; 2052 size_t portsMax = *num_ports; 2053 *num_ports = 0; 2054 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_DEVICE) { 2055 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 2056 for (size_t i = 0; 2057 i < mAvailableOutputDevices.size() && portsWritten < portsMax; i++) { 2058 mAvailableOutputDevices[i]->toAudioPort(&ports[portsWritten++]); 2059 } 2060 *num_ports += mAvailableOutputDevices.size(); 2061 } 2062 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 2063 for (size_t i = 0; 2064 i < mAvailableInputDevices.size() && portsWritten < portsMax; i++) { 2065 mAvailableInputDevices[i]->toAudioPort(&ports[portsWritten++]); 2066 } 2067 *num_ports += mAvailableInputDevices.size(); 2068 } 2069 } 2070 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_MIX) { 2071 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 2072 for (size_t i = 0; i < mInputs.size() && portsWritten < portsMax; i++) { 2073 mInputs[i]->toAudioPort(&ports[portsWritten++]); 2074 } 2075 *num_ports += mInputs.size(); 2076 } 2077 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 2078 size_t numOutputs = 0; 2079 for (size_t i = 0; i < mOutputs.size(); i++) { 2080 if (!mOutputs[i]->isDuplicated()) { 2081 numOutputs++; 2082 if (portsWritten < portsMax) { 2083 mOutputs[i]->toAudioPort(&ports[portsWritten++]); 2084 } 2085 } 2086 } 2087 *num_ports += numOutputs; 2088 } 2089 } 2090 *generation = curAudioPortGeneration(); 2091 ALOGV("listAudioPorts() got %zu ports needed %d", portsWritten, *num_ports); 2092 return NO_ERROR; 2093} 2094 2095status_t AudioPolicyManager::getAudioPort(struct audio_port *port __unused) 2096{ 2097 return NO_ERROR; 2098} 2099 2100sp<AudioPolicyManager::AudioOutputDescriptor> AudioPolicyManager::getOutputFromId( 2101 audio_port_handle_t id) const 2102{ 2103 sp<AudioOutputDescriptor> outputDesc = NULL; 2104 for (size_t i = 0; i < mOutputs.size(); i++) { 2105 outputDesc = mOutputs.valueAt(i); 2106 if (outputDesc->mId == id) { 2107 break; 2108 } 2109 } 2110 return outputDesc; 2111} 2112 2113sp<AudioPolicyManager::AudioInputDescriptor> AudioPolicyManager::getInputFromId( 2114 audio_port_handle_t id) const 2115{ 2116 sp<AudioInputDescriptor> inputDesc = NULL; 2117 for (size_t i = 0; i < mInputs.size(); i++) { 2118 inputDesc = mInputs.valueAt(i); 2119 if (inputDesc->mId == id) { 2120 break; 2121 } 2122 } 2123 return inputDesc; 2124} 2125 2126sp <AudioPolicyManager::HwModule> AudioPolicyManager::getModuleForDevice( 2127 audio_devices_t device) const 2128{ 2129 sp <HwModule> module; 2130 2131 for (size_t i = 0; i < mHwModules.size(); i++) { 2132 if (mHwModules[i]->mHandle == 0) { 2133 continue; 2134 } 2135 if (audio_is_output_device(device)) { 2136 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 2137 { 2138 if (mHwModules[i]->mOutputProfiles[j]->mSupportedDevices.types() & device) { 2139 return mHwModules[i]; 2140 } 2141 } 2142 } else { 2143 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) { 2144 if (mHwModules[i]->mInputProfiles[j]->mSupportedDevices.types() & 2145 device & ~AUDIO_DEVICE_BIT_IN) { 2146 return mHwModules[i]; 2147 } 2148 } 2149 } 2150 } 2151 return module; 2152} 2153 2154sp <AudioPolicyManager::HwModule> AudioPolicyManager::getModuleFromName(const char *name) const 2155{ 2156 sp <HwModule> module; 2157 2158 for (size_t i = 0; i < mHwModules.size(); i++) 2159 { 2160 if (strcmp(mHwModules[i]->mName, name) == 0) { 2161 return mHwModules[i]; 2162 } 2163 } 2164 return module; 2165} 2166 2167audio_devices_t AudioPolicyManager::availablePrimaryOutputDevices() 2168{ 2169 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 2170 audio_devices_t devices = outputDesc->mProfile->mSupportedDevices.types(); 2171 return devices & mAvailableOutputDevices.types(); 2172} 2173 2174audio_devices_t AudioPolicyManager::availablePrimaryInputDevices() 2175{ 2176 audio_module_handle_t primaryHandle = 2177 mOutputs.valueFor(mPrimaryOutput)->mProfile->mModule->mHandle; 2178 audio_devices_t devices = AUDIO_DEVICE_NONE; 2179 for (size_t i = 0; i < mAvailableInputDevices.size(); i++) { 2180 if (mAvailableInputDevices[i]->mModule->mHandle == primaryHandle) { 2181 devices |= mAvailableInputDevices[i]->mDeviceType; 2182 } 2183 } 2184 return devices; 2185} 2186 2187status_t AudioPolicyManager::createAudioPatch(const struct audio_patch *patch, 2188 audio_patch_handle_t *handle, 2189 uid_t uid) 2190{ 2191 ALOGV("createAudioPatch()"); 2192 2193 if (handle == NULL || patch == NULL) { 2194 return BAD_VALUE; 2195 } 2196 ALOGV("createAudioPatch() num sources %d num sinks %d", patch->num_sources, patch->num_sinks); 2197 2198 if (patch->num_sources == 0 || patch->num_sources > AUDIO_PATCH_PORTS_MAX || 2199 patch->num_sinks == 0 || patch->num_sinks > AUDIO_PATCH_PORTS_MAX) { 2200 return BAD_VALUE; 2201 } 2202 // only one source per audio patch supported for now 2203 if (patch->num_sources > 1) { 2204 return INVALID_OPERATION; 2205 } 2206 2207 if (patch->sources[0].role != AUDIO_PORT_ROLE_SOURCE) { 2208 return INVALID_OPERATION; 2209 } 2210 for (size_t i = 0; i < patch->num_sinks; i++) { 2211 if (patch->sinks[i].role != AUDIO_PORT_ROLE_SINK) { 2212 return INVALID_OPERATION; 2213 } 2214 } 2215 2216 sp<AudioPatch> patchDesc; 2217 ssize_t index = mAudioPatches.indexOfKey(*handle); 2218 2219 ALOGV("createAudioPatch source id %d role %d type %d", patch->sources[0].id, 2220 patch->sources[0].role, 2221 patch->sources[0].type); 2222#if LOG_NDEBUG == 0 2223 for (size_t i = 0; i < patch->num_sinks; i++) { 2224 ALOGV("createAudioPatch sink %d: id %d role %d type %d", i, patch->sinks[i].id, 2225 patch->sinks[i].role, 2226 patch->sinks[i].type); 2227 } 2228#endif 2229 2230 if (index >= 0) { 2231 patchDesc = mAudioPatches.valueAt(index); 2232 ALOGV("createAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 2233 mUidCached, patchDesc->mUid, uid); 2234 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 2235 return INVALID_OPERATION; 2236 } 2237 } else { 2238 *handle = 0; 2239 } 2240 2241 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 2242 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(patch->sources[0].id); 2243 if (outputDesc == NULL) { 2244 ALOGV("createAudioPatch() output not found for id %d", patch->sources[0].id); 2245 return BAD_VALUE; 2246 } 2247 ALOG_ASSERT(!outputDesc->isDuplicated(),"duplicated output %d in source in ports", 2248 outputDesc->mIoHandle); 2249 if (patchDesc != 0) { 2250 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 2251 ALOGV("createAudioPatch() source id differs for patch current id %d new id %d", 2252 patchDesc->mPatch.sources[0].id, patch->sources[0].id); 2253 return BAD_VALUE; 2254 } 2255 } 2256 DeviceVector devices; 2257 for (size_t i = 0; i < patch->num_sinks; i++) { 2258 // Only support mix to devices connection 2259 // TODO add support for mix to mix connection 2260 if (patch->sinks[i].type != AUDIO_PORT_TYPE_DEVICE) { 2261 ALOGV("createAudioPatch() source mix but sink is not a device"); 2262 return INVALID_OPERATION; 2263 } 2264 sp<DeviceDescriptor> devDesc = 2265 mAvailableOutputDevices.getDeviceFromId(patch->sinks[i].id); 2266 if (devDesc == 0) { 2267 ALOGV("createAudioPatch() out device not found for id %d", patch->sinks[i].id); 2268 return BAD_VALUE; 2269 } 2270 2271 if (!outputDesc->mProfile->isCompatibleProfile(devDesc->mDeviceType, 2272 patch->sources[0].sample_rate, 2273 NULL, // updatedSamplingRate 2274 patch->sources[0].format, 2275 patch->sources[0].channel_mask, 2276 AUDIO_OUTPUT_FLAG_NONE /*FIXME*/)) { 2277 ALOGV("createAudioPatch() profile not supported for device %08x", 2278 devDesc->mDeviceType); 2279 return INVALID_OPERATION; 2280 } 2281 devices.add(devDesc); 2282 } 2283 if (devices.size() == 0) { 2284 return INVALID_OPERATION; 2285 } 2286 2287 // TODO: reconfigure output format and channels here 2288 ALOGV("createAudioPatch() setting device %08x on output %d", 2289 devices.types(), outputDesc->mIoHandle); 2290 setOutputDevice(outputDesc->mIoHandle, devices.types(), true, 0, handle); 2291 index = mAudioPatches.indexOfKey(*handle); 2292 if (index >= 0) { 2293 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 2294 ALOGW("createAudioPatch() setOutputDevice() did not reuse the patch provided"); 2295 } 2296 patchDesc = mAudioPatches.valueAt(index); 2297 patchDesc->mUid = uid; 2298 ALOGV("createAudioPatch() success"); 2299 } else { 2300 ALOGW("createAudioPatch() setOutputDevice() failed to create a patch"); 2301 return INVALID_OPERATION; 2302 } 2303 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 2304 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 2305 // input device to input mix connection 2306 // only one sink supported when connecting an input device to a mix 2307 if (patch->num_sinks > 1) { 2308 return INVALID_OPERATION; 2309 } 2310 sp<AudioInputDescriptor> inputDesc = getInputFromId(patch->sinks[0].id); 2311 if (inputDesc == NULL) { 2312 return BAD_VALUE; 2313 } 2314 if (patchDesc != 0) { 2315 if (patchDesc->mPatch.sinks[0].id != patch->sinks[0].id) { 2316 return BAD_VALUE; 2317 } 2318 } 2319 sp<DeviceDescriptor> devDesc = 2320 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 2321 if (devDesc == 0) { 2322 return BAD_VALUE; 2323 } 2324 2325 if (!inputDesc->mProfile->isCompatibleProfile(devDesc->mDeviceType, 2326 patch->sinks[0].sample_rate, 2327 NULL, /*updatedSampleRate*/ 2328 patch->sinks[0].format, 2329 patch->sinks[0].channel_mask, 2330 // FIXME for the parameter type, 2331 // and the NONE 2332 (audio_output_flags_t) 2333 AUDIO_INPUT_FLAG_NONE)) { 2334 return INVALID_OPERATION; 2335 } 2336 // TODO: reconfigure output format and channels here 2337 ALOGV("createAudioPatch() setting device %08x on output %d", 2338 devDesc->mDeviceType, inputDesc->mIoHandle); 2339 setInputDevice(inputDesc->mIoHandle, devDesc->mDeviceType, true, handle); 2340 index = mAudioPatches.indexOfKey(*handle); 2341 if (index >= 0) { 2342 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 2343 ALOGW("createAudioPatch() setInputDevice() did not reuse the patch provided"); 2344 } 2345 patchDesc = mAudioPatches.valueAt(index); 2346 patchDesc->mUid = uid; 2347 ALOGV("createAudioPatch() success"); 2348 } else { 2349 ALOGW("createAudioPatch() setInputDevice() failed to create a patch"); 2350 return INVALID_OPERATION; 2351 } 2352 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2353 // device to device connection 2354 if (patchDesc != 0) { 2355 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 2356 return BAD_VALUE; 2357 } 2358 } 2359 sp<DeviceDescriptor> srcDeviceDesc = 2360 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 2361 if (srcDeviceDesc == 0) { 2362 return BAD_VALUE; 2363 } 2364 2365 //update source and sink with our own data as the data passed in the patch may 2366 // be incomplete. 2367 struct audio_patch newPatch = *patch; 2368 srcDeviceDesc->toAudioPortConfig(&newPatch.sources[0], &patch->sources[0]); 2369 2370 for (size_t i = 0; i < patch->num_sinks; i++) { 2371 if (patch->sinks[i].type != AUDIO_PORT_TYPE_DEVICE) { 2372 ALOGV("createAudioPatch() source device but one sink is not a device"); 2373 return INVALID_OPERATION; 2374 } 2375 2376 sp<DeviceDescriptor> sinkDeviceDesc = 2377 mAvailableOutputDevices.getDeviceFromId(patch->sinks[i].id); 2378 if (sinkDeviceDesc == 0) { 2379 return BAD_VALUE; 2380 } 2381 sinkDeviceDesc->toAudioPortConfig(&newPatch.sinks[i], &patch->sinks[i]); 2382 2383 if (srcDeviceDesc->mModule != sinkDeviceDesc->mModule) { 2384 // only one sink supported when connected devices across HW modules 2385 if (patch->num_sinks > 1) { 2386 return INVALID_OPERATION; 2387 } 2388 SortedVector<audio_io_handle_t> outputs = 2389 getOutputsForDevice(sinkDeviceDesc->mDeviceType, 2390 mOutputs); 2391 // if the sink device is reachable via an opened output stream, request to go via 2392 // this output stream by adding a second source to the patch description 2393 audio_io_handle_t output = selectOutput(outputs, 2394 AUDIO_OUTPUT_FLAG_NONE, 2395 AUDIO_FORMAT_INVALID); 2396 if (output != AUDIO_IO_HANDLE_NONE) { 2397 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 2398 if (outputDesc->isDuplicated()) { 2399 return INVALID_OPERATION; 2400 } 2401 outputDesc->toAudioPortConfig(&newPatch.sources[1], &patch->sources[0]); 2402 newPatch.num_sources = 2; 2403 } 2404 } 2405 } 2406 // TODO: check from routing capabilities in config file and other conflicting patches 2407 2408 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 2409 if (index >= 0) { 2410 afPatchHandle = patchDesc->mAfPatchHandle; 2411 } 2412 2413 status_t status = mpClientInterface->createAudioPatch(&newPatch, 2414 &afPatchHandle, 2415 0); 2416 ALOGV("createAudioPatch() patch panel returned %d patchHandle %d", 2417 status, afPatchHandle); 2418 if (status == NO_ERROR) { 2419 if (index < 0) { 2420 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 2421 &newPatch, uid); 2422 addAudioPatch(patchDesc->mHandle, patchDesc); 2423 } else { 2424 patchDesc->mPatch = newPatch; 2425 } 2426 patchDesc->mAfPatchHandle = afPatchHandle; 2427 *handle = patchDesc->mHandle; 2428 nextAudioPortGeneration(); 2429 mpClientInterface->onAudioPatchListUpdate(); 2430 } else { 2431 ALOGW("createAudioPatch() patch panel could not connect device patch, error %d", 2432 status); 2433 return INVALID_OPERATION; 2434 } 2435 } else { 2436 return BAD_VALUE; 2437 } 2438 } else { 2439 return BAD_VALUE; 2440 } 2441 return NO_ERROR; 2442} 2443 2444status_t AudioPolicyManager::releaseAudioPatch(audio_patch_handle_t handle, 2445 uid_t uid) 2446{ 2447 ALOGV("releaseAudioPatch() patch %d", handle); 2448 2449 ssize_t index = mAudioPatches.indexOfKey(handle); 2450 2451 if (index < 0) { 2452 return BAD_VALUE; 2453 } 2454 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 2455 ALOGV("releaseAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 2456 mUidCached, patchDesc->mUid, uid); 2457 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 2458 return INVALID_OPERATION; 2459 } 2460 2461 struct audio_patch *patch = &patchDesc->mPatch; 2462 patchDesc->mUid = mUidCached; 2463 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 2464 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(patch->sources[0].id); 2465 if (outputDesc == NULL) { 2466 ALOGV("releaseAudioPatch() output not found for id %d", patch->sources[0].id); 2467 return BAD_VALUE; 2468 } 2469 2470 setOutputDevice(outputDesc->mIoHandle, 2471 getNewOutputDevice(outputDesc->mIoHandle, true /*fromCache*/), 2472 true, 2473 0, 2474 NULL); 2475 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 2476 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 2477 sp<AudioInputDescriptor> inputDesc = getInputFromId(patch->sinks[0].id); 2478 if (inputDesc == NULL) { 2479 ALOGV("releaseAudioPatch() input not found for id %d", patch->sinks[0].id); 2480 return BAD_VALUE; 2481 } 2482 setInputDevice(inputDesc->mIoHandle, 2483 getNewInputDevice(inputDesc->mIoHandle), 2484 true, 2485 NULL); 2486 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2487 audio_patch_handle_t afPatchHandle = patchDesc->mAfPatchHandle; 2488 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 2489 ALOGV("releaseAudioPatch() patch panel returned %d patchHandle %d", 2490 status, patchDesc->mAfPatchHandle); 2491 removeAudioPatch(patchDesc->mHandle); 2492 nextAudioPortGeneration(); 2493 mpClientInterface->onAudioPatchListUpdate(); 2494 } else { 2495 return BAD_VALUE; 2496 } 2497 } else { 2498 return BAD_VALUE; 2499 } 2500 return NO_ERROR; 2501} 2502 2503status_t AudioPolicyManager::listAudioPatches(unsigned int *num_patches, 2504 struct audio_patch *patches, 2505 unsigned int *generation) 2506{ 2507 if (num_patches == NULL || (*num_patches != 0 && patches == NULL) || 2508 generation == NULL) { 2509 return BAD_VALUE; 2510 } 2511 ALOGV("listAudioPatches() num_patches %d patches %p available patches %zu", 2512 *num_patches, patches, mAudioPatches.size()); 2513 if (patches == NULL) { 2514 *num_patches = 0; 2515 } 2516 2517 size_t patchesWritten = 0; 2518 size_t patchesMax = *num_patches; 2519 for (size_t i = 0; 2520 i < mAudioPatches.size() && patchesWritten < patchesMax; i++) { 2521 patches[patchesWritten] = mAudioPatches[i]->mPatch; 2522 patches[patchesWritten++].id = mAudioPatches[i]->mHandle; 2523 ALOGV("listAudioPatches() patch %zu num_sources %d num_sinks %d", 2524 i, mAudioPatches[i]->mPatch.num_sources, mAudioPatches[i]->mPatch.num_sinks); 2525 } 2526 *num_patches = mAudioPatches.size(); 2527 2528 *generation = curAudioPortGeneration(); 2529 ALOGV("listAudioPatches() got %zu patches needed %d", patchesWritten, *num_patches); 2530 return NO_ERROR; 2531} 2532 2533status_t AudioPolicyManager::setAudioPortConfig(const struct audio_port_config *config) 2534{ 2535 ALOGV("setAudioPortConfig()"); 2536 2537 if (config == NULL) { 2538 return BAD_VALUE; 2539 } 2540 ALOGV("setAudioPortConfig() on port handle %d", config->id); 2541 // Only support gain configuration for now 2542 if (config->config_mask != AUDIO_PORT_CONFIG_GAIN) { 2543 return INVALID_OPERATION; 2544 } 2545 2546 sp<AudioPortConfig> audioPortConfig; 2547 if (config->type == AUDIO_PORT_TYPE_MIX) { 2548 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2549 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(config->id); 2550 if (outputDesc == NULL) { 2551 return BAD_VALUE; 2552 } 2553 ALOG_ASSERT(!outputDesc->isDuplicated(), 2554 "setAudioPortConfig() called on duplicated output %d", 2555 outputDesc->mIoHandle); 2556 audioPortConfig = outputDesc; 2557 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2558 sp<AudioInputDescriptor> inputDesc = getInputFromId(config->id); 2559 if (inputDesc == NULL) { 2560 return BAD_VALUE; 2561 } 2562 audioPortConfig = inputDesc; 2563 } else { 2564 return BAD_VALUE; 2565 } 2566 } else if (config->type == AUDIO_PORT_TYPE_DEVICE) { 2567 sp<DeviceDescriptor> deviceDesc; 2568 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2569 deviceDesc = mAvailableInputDevices.getDeviceFromId(config->id); 2570 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2571 deviceDesc = mAvailableOutputDevices.getDeviceFromId(config->id); 2572 } else { 2573 return BAD_VALUE; 2574 } 2575 if (deviceDesc == NULL) { 2576 return BAD_VALUE; 2577 } 2578 audioPortConfig = deviceDesc; 2579 } else { 2580 return BAD_VALUE; 2581 } 2582 2583 struct audio_port_config backupConfig; 2584 status_t status = audioPortConfig->applyAudioPortConfig(config, &backupConfig); 2585 if (status == NO_ERROR) { 2586 struct audio_port_config newConfig; 2587 audioPortConfig->toAudioPortConfig(&newConfig, config); 2588 status = mpClientInterface->setAudioPortConfig(&newConfig, 0); 2589 } 2590 if (status != NO_ERROR) { 2591 audioPortConfig->applyAudioPortConfig(&backupConfig); 2592 } 2593 2594 return status; 2595} 2596 2597void AudioPolicyManager::clearAudioPatches(uid_t uid) 2598{ 2599 for (ssize_t i = 0; i < (ssize_t)mAudioPatches.size(); i++) { 2600 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(i); 2601 if (patchDesc->mUid == uid) { 2602 // releaseAudioPatch() removes the patch from mAudioPatches 2603 if (releaseAudioPatch(mAudioPatches.keyAt(i), uid) == NO_ERROR) { 2604 i--; 2605 } 2606 } 2607 } 2608} 2609 2610status_t AudioPolicyManager::acquireSoundTriggerSession(audio_session_t *session, 2611 audio_io_handle_t *ioHandle, 2612 audio_devices_t *device) 2613{ 2614 *session = (audio_session_t)mpClientInterface->newAudioUniqueId(); 2615 *ioHandle = (audio_io_handle_t)mpClientInterface->newAudioUniqueId(); 2616 *device = getDeviceForInputSource(AUDIO_SOURCE_HOTWORD); 2617 2618 mSoundTriggerSessions.add(*session, *ioHandle); 2619 2620 return NO_ERROR; 2621} 2622 2623status_t AudioPolicyManager::releaseSoundTriggerSession(audio_session_t session) 2624{ 2625 ssize_t index = mSoundTriggerSessions.indexOfKey(session); 2626 if (index < 0) { 2627 ALOGW("acquireSoundTriggerSession() session %d not registered", session); 2628 return BAD_VALUE; 2629 } 2630 2631 mSoundTriggerSessions.removeItem(session); 2632 return NO_ERROR; 2633} 2634 2635status_t AudioPolicyManager::addAudioPatch(audio_patch_handle_t handle, 2636 const sp<AudioPatch>& patch) 2637{ 2638 ssize_t index = mAudioPatches.indexOfKey(handle); 2639 2640 if (index >= 0) { 2641 ALOGW("addAudioPatch() patch %d already in", handle); 2642 return ALREADY_EXISTS; 2643 } 2644 mAudioPatches.add(handle, patch); 2645 ALOGV("addAudioPatch() handle %d af handle %d num_sources %d num_sinks %d source handle %d" 2646 "sink handle %d", 2647 handle, patch->mAfPatchHandle, patch->mPatch.num_sources, patch->mPatch.num_sinks, 2648 patch->mPatch.sources[0].id, patch->mPatch.sinks[0].id); 2649 return NO_ERROR; 2650} 2651 2652status_t AudioPolicyManager::removeAudioPatch(audio_patch_handle_t handle) 2653{ 2654 ssize_t index = mAudioPatches.indexOfKey(handle); 2655 2656 if (index < 0) { 2657 ALOGW("removeAudioPatch() patch %d not in", handle); 2658 return ALREADY_EXISTS; 2659 } 2660 ALOGV("removeAudioPatch() handle %d af handle %d", handle, 2661 mAudioPatches.valueAt(index)->mAfPatchHandle); 2662 mAudioPatches.removeItemsAt(index); 2663 return NO_ERROR; 2664} 2665 2666// ---------------------------------------------------------------------------- 2667// AudioPolicyManager 2668// ---------------------------------------------------------------------------- 2669 2670uint32_t AudioPolicyManager::nextUniqueId() 2671{ 2672 return android_atomic_inc(&mNextUniqueId); 2673} 2674 2675uint32_t AudioPolicyManager::nextAudioPortGeneration() 2676{ 2677 return android_atomic_inc(&mAudioPortGeneration); 2678} 2679 2680AudioPolicyManager::AudioPolicyManager(AudioPolicyClientInterface *clientInterface) 2681 : 2682#ifdef AUDIO_POLICY_TEST 2683 Thread(false), 2684#endif //AUDIO_POLICY_TEST 2685 mPrimaryOutput((audio_io_handle_t)0), 2686 mPhoneState(AUDIO_MODE_NORMAL), 2687 mLimitRingtoneVolume(false), mLastVoiceVolume(-1.0f), 2688 mTotalEffectsCpuLoad(0), mTotalEffectsMemory(0), 2689 mA2dpSuspended(false), 2690 mSpeakerDrcEnabled(false), mNextUniqueId(1), 2691 mAudioPortGeneration(1), 2692 mBeaconMuteRefCount(0), 2693 mBeaconPlayingRefCount(0), 2694 mBeaconMuted(false) 2695{ 2696 mUidCached = getuid(); 2697 mpClientInterface = clientInterface; 2698 2699 for (int i = 0; i < AUDIO_POLICY_FORCE_USE_CNT; i++) { 2700 mForceUse[i] = AUDIO_POLICY_FORCE_NONE; 2701 } 2702 2703 mDefaultOutputDevice = new DeviceDescriptor(String8(""), AUDIO_DEVICE_OUT_SPEAKER); 2704 if (loadAudioPolicyConfig(AUDIO_POLICY_VENDOR_CONFIG_FILE) != NO_ERROR) { 2705 if (loadAudioPolicyConfig(AUDIO_POLICY_CONFIG_FILE) != NO_ERROR) { 2706 ALOGE("could not load audio policy configuration file, setting defaults"); 2707 defaultAudioPolicyConfig(); 2708 } 2709 } 2710 // mAvailableOutputDevices and mAvailableInputDevices now contain all attached devices 2711 2712 // must be done after reading the policy 2713 initializeVolumeCurves(); 2714 2715 // open all output streams needed to access attached devices 2716 audio_devices_t outputDeviceTypes = mAvailableOutputDevices.types(); 2717 audio_devices_t inputDeviceTypes = mAvailableInputDevices.types() & ~AUDIO_DEVICE_BIT_IN; 2718 for (size_t i = 0; i < mHwModules.size(); i++) { 2719 mHwModules[i]->mHandle = mpClientInterface->loadHwModule(mHwModules[i]->mName); 2720 if (mHwModules[i]->mHandle == 0) { 2721 ALOGW("could not open HW module %s", mHwModules[i]->mName); 2722 continue; 2723 } 2724 // open all output streams needed to access attached devices 2725 // except for direct output streams that are only opened when they are actually 2726 // required by an app. 2727 // This also validates mAvailableOutputDevices list 2728 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 2729 { 2730 const sp<IOProfile> outProfile = mHwModules[i]->mOutputProfiles[j]; 2731 2732 if (outProfile->mSupportedDevices.isEmpty()) { 2733 ALOGW("Output profile contains no device on module %s", mHwModules[i]->mName); 2734 continue; 2735 } 2736 2737 if ((outProfile->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) { 2738 continue; 2739 } 2740 audio_devices_t profileType = outProfile->mSupportedDevices.types(); 2741 if ((profileType & mDefaultOutputDevice->mDeviceType) != AUDIO_DEVICE_NONE) { 2742 profileType = mDefaultOutputDevice->mDeviceType; 2743 } else { 2744 // chose first device present in mSupportedDevices also part of 2745 // outputDeviceTypes 2746 for (size_t k = 0; k < outProfile->mSupportedDevices.size(); k++) { 2747 profileType = outProfile->mSupportedDevices[k]->mDeviceType; 2748 if ((profileType & outputDeviceTypes) != 0) { 2749 break; 2750 } 2751 } 2752 } 2753 if ((profileType & outputDeviceTypes) == 0) { 2754 continue; 2755 } 2756 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(outProfile); 2757 2758 outputDesc->mDevice = profileType; 2759 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 2760 config.sample_rate = outputDesc->mSamplingRate; 2761 config.channel_mask = outputDesc->mChannelMask; 2762 config.format = outputDesc->mFormat; 2763 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 2764 status_t status = mpClientInterface->openOutput(outProfile->mModule->mHandle, 2765 &output, 2766 &config, 2767 &outputDesc->mDevice, 2768 String8(""), 2769 &outputDesc->mLatency, 2770 outputDesc->mFlags); 2771 2772 if (status != NO_ERROR) { 2773 ALOGW("Cannot open output stream for device %08x on hw module %s", 2774 outputDesc->mDevice, 2775 mHwModules[i]->mName); 2776 } else { 2777 outputDesc->mSamplingRate = config.sample_rate; 2778 outputDesc->mChannelMask = config.channel_mask; 2779 outputDesc->mFormat = config.format; 2780 2781 for (size_t k = 0; k < outProfile->mSupportedDevices.size(); k++) { 2782 audio_devices_t type = outProfile->mSupportedDevices[k]->mDeviceType; 2783 ssize_t index = 2784 mAvailableOutputDevices.indexOf(outProfile->mSupportedDevices[k]); 2785 // give a valid ID to an attached device once confirmed it is reachable 2786 if ((index >= 0) && (mAvailableOutputDevices[index]->mId == 0)) { 2787 mAvailableOutputDevices[index]->mId = nextUniqueId(); 2788 mAvailableOutputDevices[index]->mModule = mHwModules[i]; 2789 } 2790 } 2791 if (mPrimaryOutput == 0 && 2792 outProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 2793 mPrimaryOutput = output; 2794 } 2795 addOutput(output, outputDesc); 2796 setOutputDevice(output, 2797 outputDesc->mDevice, 2798 true); 2799 } 2800 } 2801 // open input streams needed to access attached devices to validate 2802 // mAvailableInputDevices list 2803 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 2804 { 2805 const sp<IOProfile> inProfile = mHwModules[i]->mInputProfiles[j]; 2806 2807 if (inProfile->mSupportedDevices.isEmpty()) { 2808 ALOGW("Input profile contains no device on module %s", mHwModules[i]->mName); 2809 continue; 2810 } 2811 // chose first device present in mSupportedDevices also part of 2812 // inputDeviceTypes 2813 audio_devices_t profileType = AUDIO_DEVICE_NONE; 2814 for (size_t k = 0; k < inProfile->mSupportedDevices.size(); k++) { 2815 profileType = inProfile->mSupportedDevices[k]->mDeviceType; 2816 if (profileType & inputDeviceTypes) { 2817 break; 2818 } 2819 } 2820 if ((profileType & inputDeviceTypes) == 0) { 2821 continue; 2822 } 2823 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(inProfile); 2824 2825 inputDesc->mInputSource = AUDIO_SOURCE_MIC; 2826 inputDesc->mDevice = profileType; 2827 2828 // find the address 2829 DeviceVector inputDevices = mAvailableInputDevices.getDevicesFromType(profileType); 2830 // the inputs vector must be of size 1, but we don't want to crash here 2831 String8 address = inputDevices.size() > 0 ? inputDevices.itemAt(0)->mAddress 2832 : String8(""); 2833 ALOGV(" for input device 0x%x using address %s", profileType, address.string()); 2834 ALOGE_IF(inputDevices.size() == 0, "Input device list is empty!"); 2835 2836 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 2837 config.sample_rate = inputDesc->mSamplingRate; 2838 config.channel_mask = inputDesc->mChannelMask; 2839 config.format = inputDesc->mFormat; 2840 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 2841 status_t status = mpClientInterface->openInput(inProfile->mModule->mHandle, 2842 &input, 2843 &config, 2844 &inputDesc->mDevice, 2845 address, 2846 AUDIO_SOURCE_MIC, 2847 AUDIO_INPUT_FLAG_NONE); 2848 2849 if (status == NO_ERROR) { 2850 for (size_t k = 0; k < inProfile->mSupportedDevices.size(); k++) { 2851 audio_devices_t type = inProfile->mSupportedDevices[k]->mDeviceType; 2852 ssize_t index = 2853 mAvailableInputDevices.indexOf(inProfile->mSupportedDevices[k]); 2854 // give a valid ID to an attached device once confirmed it is reachable 2855 if ((index >= 0) && (mAvailableInputDevices[index]->mId == 0)) { 2856 mAvailableInputDevices[index]->mId = nextUniqueId(); 2857 mAvailableInputDevices[index]->mModule = mHwModules[i]; 2858 } 2859 } 2860 mpClientInterface->closeInput(input); 2861 } else { 2862 ALOGW("Cannot open input stream for device %08x on hw module %s", 2863 inputDesc->mDevice, 2864 mHwModules[i]->mName); 2865 } 2866 } 2867 } 2868 // make sure all attached devices have been allocated a unique ID 2869 for (size_t i = 0; i < mAvailableOutputDevices.size();) { 2870 if (mAvailableOutputDevices[i]->mId == 0) { 2871 ALOGW("Input device %08x unreachable", mAvailableOutputDevices[i]->mDeviceType); 2872 mAvailableOutputDevices.remove(mAvailableOutputDevices[i]); 2873 continue; 2874 } 2875 i++; 2876 } 2877 for (size_t i = 0; i < mAvailableInputDevices.size();) { 2878 if (mAvailableInputDevices[i]->mId == 0) { 2879 ALOGW("Input device %08x unreachable", mAvailableInputDevices[i]->mDeviceType); 2880 mAvailableInputDevices.remove(mAvailableInputDevices[i]); 2881 continue; 2882 } 2883 i++; 2884 } 2885 // make sure default device is reachable 2886 if (mAvailableOutputDevices.indexOf(mDefaultOutputDevice) < 0) { 2887 ALOGE("Default device %08x is unreachable", mDefaultOutputDevice->mDeviceType); 2888 } 2889 2890 ALOGE_IF((mPrimaryOutput == 0), "Failed to open primary output"); 2891 2892 updateDevicesAndOutputs(); 2893 2894#ifdef AUDIO_POLICY_TEST 2895 if (mPrimaryOutput != 0) { 2896 AudioParameter outputCmd = AudioParameter(); 2897 outputCmd.addInt(String8("set_id"), 0); 2898 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 2899 2900 mTestDevice = AUDIO_DEVICE_OUT_SPEAKER; 2901 mTestSamplingRate = 44100; 2902 mTestFormat = AUDIO_FORMAT_PCM_16_BIT; 2903 mTestChannels = AUDIO_CHANNEL_OUT_STEREO; 2904 mTestLatencyMs = 0; 2905 mCurOutput = 0; 2906 mDirectOutput = false; 2907 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 2908 mTestOutputs[i] = 0; 2909 } 2910 2911 const size_t SIZE = 256; 2912 char buffer[SIZE]; 2913 snprintf(buffer, SIZE, "AudioPolicyManagerTest"); 2914 run(buffer, ANDROID_PRIORITY_AUDIO); 2915 } 2916#endif //AUDIO_POLICY_TEST 2917} 2918 2919AudioPolicyManager::~AudioPolicyManager() 2920{ 2921#ifdef AUDIO_POLICY_TEST 2922 exit(); 2923#endif //AUDIO_POLICY_TEST 2924 for (size_t i = 0; i < mOutputs.size(); i++) { 2925 mpClientInterface->closeOutput(mOutputs.keyAt(i)); 2926 } 2927 for (size_t i = 0; i < mInputs.size(); i++) { 2928 mpClientInterface->closeInput(mInputs.keyAt(i)); 2929 } 2930 mAvailableOutputDevices.clear(); 2931 mAvailableInputDevices.clear(); 2932 mOutputs.clear(); 2933 mInputs.clear(); 2934 mHwModules.clear(); 2935} 2936 2937status_t AudioPolicyManager::initCheck() 2938{ 2939 return (mPrimaryOutput == 0) ? NO_INIT : NO_ERROR; 2940} 2941 2942#ifdef AUDIO_POLICY_TEST 2943bool AudioPolicyManager::threadLoop() 2944{ 2945 ALOGV("entering threadLoop()"); 2946 while (!exitPending()) 2947 { 2948 String8 command; 2949 int valueInt; 2950 String8 value; 2951 2952 Mutex::Autolock _l(mLock); 2953 mWaitWorkCV.waitRelative(mLock, milliseconds(50)); 2954 2955 command = mpClientInterface->getParameters(0, String8("test_cmd_policy")); 2956 AudioParameter param = AudioParameter(command); 2957 2958 if (param.getInt(String8("test_cmd_policy"), valueInt) == NO_ERROR && 2959 valueInt != 0) { 2960 ALOGV("Test command %s received", command.string()); 2961 String8 target; 2962 if (param.get(String8("target"), target) != NO_ERROR) { 2963 target = "Manager"; 2964 } 2965 if (param.getInt(String8("test_cmd_policy_output"), valueInt) == NO_ERROR) { 2966 param.remove(String8("test_cmd_policy_output")); 2967 mCurOutput = valueInt; 2968 } 2969 if (param.get(String8("test_cmd_policy_direct"), value) == NO_ERROR) { 2970 param.remove(String8("test_cmd_policy_direct")); 2971 if (value == "false") { 2972 mDirectOutput = false; 2973 } else if (value == "true") { 2974 mDirectOutput = true; 2975 } 2976 } 2977 if (param.getInt(String8("test_cmd_policy_input"), valueInt) == NO_ERROR) { 2978 param.remove(String8("test_cmd_policy_input")); 2979 mTestInput = valueInt; 2980 } 2981 2982 if (param.get(String8("test_cmd_policy_format"), value) == NO_ERROR) { 2983 param.remove(String8("test_cmd_policy_format")); 2984 int format = AUDIO_FORMAT_INVALID; 2985 if (value == "PCM 16 bits") { 2986 format = AUDIO_FORMAT_PCM_16_BIT; 2987 } else if (value == "PCM 8 bits") { 2988 format = AUDIO_FORMAT_PCM_8_BIT; 2989 } else if (value == "Compressed MP3") { 2990 format = AUDIO_FORMAT_MP3; 2991 } 2992 if (format != AUDIO_FORMAT_INVALID) { 2993 if (target == "Manager") { 2994 mTestFormat = format; 2995 } else if (mTestOutputs[mCurOutput] != 0) { 2996 AudioParameter outputParam = AudioParameter(); 2997 outputParam.addInt(String8("format"), format); 2998 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 2999 } 3000 } 3001 } 3002 if (param.get(String8("test_cmd_policy_channels"), value) == NO_ERROR) { 3003 param.remove(String8("test_cmd_policy_channels")); 3004 int channels = 0; 3005 3006 if (value == "Channels Stereo") { 3007 channels = AUDIO_CHANNEL_OUT_STEREO; 3008 } else if (value == "Channels Mono") { 3009 channels = AUDIO_CHANNEL_OUT_MONO; 3010 } 3011 if (channels != 0) { 3012 if (target == "Manager") { 3013 mTestChannels = channels; 3014 } else if (mTestOutputs[mCurOutput] != 0) { 3015 AudioParameter outputParam = AudioParameter(); 3016 outputParam.addInt(String8("channels"), channels); 3017 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 3018 } 3019 } 3020 } 3021 if (param.getInt(String8("test_cmd_policy_sampleRate"), valueInt) == NO_ERROR) { 3022 param.remove(String8("test_cmd_policy_sampleRate")); 3023 if (valueInt >= 0 && valueInt <= 96000) { 3024 int samplingRate = valueInt; 3025 if (target == "Manager") { 3026 mTestSamplingRate = samplingRate; 3027 } else if (mTestOutputs[mCurOutput] != 0) { 3028 AudioParameter outputParam = AudioParameter(); 3029 outputParam.addInt(String8("sampling_rate"), samplingRate); 3030 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 3031 } 3032 } 3033 } 3034 3035 if (param.get(String8("test_cmd_policy_reopen"), value) == NO_ERROR) { 3036 param.remove(String8("test_cmd_policy_reopen")); 3037 3038 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 3039 mpClientInterface->closeOutput(mPrimaryOutput); 3040 3041 audio_module_handle_t moduleHandle = outputDesc->mModule->mHandle; 3042 3043 mOutputs.removeItem(mPrimaryOutput); 3044 3045 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(NULL); 3046 outputDesc->mDevice = AUDIO_DEVICE_OUT_SPEAKER; 3047 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3048 config.sample_rate = outputDesc->mSamplingRate; 3049 config.channel_mask = outputDesc->mChannelMask; 3050 config.format = outputDesc->mFormat; 3051 status_t status = mpClientInterface->openOutput(moduleHandle, 3052 &mPrimaryOutput, 3053 &config, 3054 &outputDesc->mDevice, 3055 String8(""), 3056 &outputDesc->mLatency, 3057 outputDesc->mFlags); 3058 if (status != NO_ERROR) { 3059 ALOGE("Failed to reopen hardware output stream, " 3060 "samplingRate: %d, format %d, channels %d", 3061 outputDesc->mSamplingRate, outputDesc->mFormat, outputDesc->mChannelMask); 3062 } else { 3063 outputDesc->mSamplingRate = config.sample_rate; 3064 outputDesc->mChannelMask = config.channel_mask; 3065 outputDesc->mFormat = config.format; 3066 AudioParameter outputCmd = AudioParameter(); 3067 outputCmd.addInt(String8("set_id"), 0); 3068 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 3069 addOutput(mPrimaryOutput, outputDesc); 3070 } 3071 } 3072 3073 3074 mpClientInterface->setParameters(0, String8("test_cmd_policy=")); 3075 } 3076 } 3077 return false; 3078} 3079 3080void AudioPolicyManager::exit() 3081{ 3082 { 3083 AutoMutex _l(mLock); 3084 requestExit(); 3085 mWaitWorkCV.signal(); 3086 } 3087 requestExitAndWait(); 3088} 3089 3090int AudioPolicyManager::testOutputIndex(audio_io_handle_t output) 3091{ 3092 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 3093 if (output == mTestOutputs[i]) return i; 3094 } 3095 return 0; 3096} 3097#endif //AUDIO_POLICY_TEST 3098 3099// --- 3100 3101void AudioPolicyManager::addOutput(audio_io_handle_t output, sp<AudioOutputDescriptor> outputDesc) 3102{ 3103 outputDesc->mIoHandle = output; 3104 outputDesc->mId = nextUniqueId(); 3105 mOutputs.add(output, outputDesc); 3106 nextAudioPortGeneration(); 3107} 3108 3109void AudioPolicyManager::addInput(audio_io_handle_t input, sp<AudioInputDescriptor> inputDesc) 3110{ 3111 inputDesc->mIoHandle = input; 3112 inputDesc->mId = nextUniqueId(); 3113 mInputs.add(input, inputDesc); 3114 nextAudioPortGeneration(); 3115} 3116 3117void AudioPolicyManager::findIoHandlesByAddress(sp<AudioOutputDescriptor> desc /*in*/, 3118 const String8 address /*in*/, 3119 SortedVector<audio_io_handle_t>& outputs /*out*/) { 3120 // look for a match on the given address on the addresses of the outputs: 3121 // find the address by finding the patch that maps to this output 3122 ssize_t patchIdx = mAudioPatches.indexOfKey(desc->mPatchHandle); 3123 //ALOGV(" inspecting output %d (patch %d) for supported device=0x%x", 3124 // outputIdx, patchIdx, desc->mProfile->mSupportedDevices.types()); 3125 if (patchIdx >= 0) { 3126 const sp<AudioPatch> patchDesc = mAudioPatches.valueAt(patchIdx); 3127 const int numSinks = patchDesc->mPatch.num_sinks; 3128 for (ssize_t j=0; j < numSinks; j++) { 3129 if (patchDesc->mPatch.sinks[j].type == AUDIO_PORT_TYPE_DEVICE) { 3130 const char* patchAddr = 3131 patchDesc->mPatch.sinks[j].ext.device.address; 3132 if (strncmp(patchAddr, 3133 address.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN) == 0) { 3134 ALOGV("findIoHandlesByAddress(): adding opened output %d on same address %s", 3135 desc->mIoHandle, patchDesc->mPatch.sinks[j].ext.device.address); 3136 outputs.add(desc->mIoHandle); 3137 break; 3138 } 3139 } 3140 } 3141 } 3142} 3143 3144status_t AudioPolicyManager::checkOutputsForDevice(const sp<DeviceDescriptor> devDesc, 3145 audio_policy_dev_state_t state, 3146 SortedVector<audio_io_handle_t>& outputs, 3147 const String8 address) 3148{ 3149 audio_devices_t device = devDesc->mDeviceType; 3150 sp<AudioOutputDescriptor> desc; 3151 // erase all current sample rates, formats and channel masks 3152 devDesc->clearCapabilities(); 3153 3154 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 3155 // first list already open outputs that can be routed to this device 3156 for (size_t i = 0; i < mOutputs.size(); i++) { 3157 desc = mOutputs.valueAt(i); 3158 if (!desc->isDuplicated() && (desc->mProfile->mSupportedDevices.types() & device)) { 3159 if (!deviceDistinguishesOnAddress(device)) { 3160 ALOGV("checkOutputsForDevice(): adding opened output %d", mOutputs.keyAt(i)); 3161 outputs.add(mOutputs.keyAt(i)); 3162 } else { 3163 ALOGV(" checking address match due to device 0x%x", device); 3164 findIoHandlesByAddress(desc, address, outputs); 3165 } 3166 } 3167 } 3168 // then look for output profiles that can be routed to this device 3169 SortedVector< sp<IOProfile> > profiles; 3170 for (size_t i = 0; i < mHwModules.size(); i++) 3171 { 3172 if (mHwModules[i]->mHandle == 0) { 3173 continue; 3174 } 3175 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3176 { 3177 if (mHwModules[i]->mOutputProfiles[j]->mSupportedDevices.types() & device) { 3178 ALOGV("checkOutputsForDevice(): adding profile %zu from module %zu", j, i); 3179 profiles.add(mHwModules[i]->mOutputProfiles[j]); 3180 } 3181 } 3182 } 3183 3184 ALOGV(" found %d profiles, %d outputs", profiles.size(), outputs.size()); 3185 3186 if (profiles.isEmpty() && outputs.isEmpty()) { 3187 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 3188 return BAD_VALUE; 3189 } 3190 3191 // open outputs for matching profiles if needed. Direct outputs are also opened to 3192 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 3193 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 3194 sp<IOProfile> profile = profiles[profile_index]; 3195 3196 // nothing to do if one output is already opened for this profile 3197 size_t j; 3198 for (j = 0; j < outputs.size(); j++) { 3199 desc = mOutputs.valueFor(outputs.itemAt(j)); 3200 if (!desc->isDuplicated() && desc->mProfile == profile) { 3201 // matching profile: save the sample rates, format and channel masks supported 3202 // by the profile in our device descriptor 3203 devDesc->importAudioPort(profile); 3204 break; 3205 } 3206 } 3207 if (j != outputs.size()) { 3208 continue; 3209 } 3210 3211 ALOGV("opening output for device %08x with params %s profile %p", 3212 device, address.string(), profile.get()); 3213 desc = new AudioOutputDescriptor(profile); 3214 desc->mDevice = device; 3215 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3216 config.sample_rate = desc->mSamplingRate; 3217 config.channel_mask = desc->mChannelMask; 3218 config.format = desc->mFormat; 3219 config.offload_info.sample_rate = desc->mSamplingRate; 3220 config.offload_info.channel_mask = desc->mChannelMask; 3221 config.offload_info.format = desc->mFormat; 3222 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 3223 status_t status = mpClientInterface->openOutput(profile->mModule->mHandle, 3224 &output, 3225 &config, 3226 &desc->mDevice, 3227 address, 3228 &desc->mLatency, 3229 desc->mFlags); 3230 if (status == NO_ERROR) { 3231 desc->mSamplingRate = config.sample_rate; 3232 desc->mChannelMask = config.channel_mask; 3233 desc->mFormat = config.format; 3234 3235 // Here is where the out_set_parameters() for card & device gets called 3236 if (!address.isEmpty()) { 3237 char *param = audio_device_address_to_parameter(device, address); 3238 mpClientInterface->setParameters(output, String8(param)); 3239 free(param); 3240 } 3241 3242 // Here is where we step through and resolve any "dynamic" fields 3243 String8 reply; 3244 char *value; 3245 if (profile->mSamplingRates[0] == 0) { 3246 reply = mpClientInterface->getParameters(output, 3247 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 3248 ALOGV("checkOutputsForDevice() supported sampling rates %s", 3249 reply.string()); 3250 value = strpbrk((char *)reply.string(), "="); 3251 if (value != NULL) { 3252 profile->loadSamplingRates(value + 1); 3253 } 3254 } 3255 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3256 reply = mpClientInterface->getParameters(output, 3257 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 3258 ALOGV("checkOutputsForDevice() supported formats %s", 3259 reply.string()); 3260 value = strpbrk((char *)reply.string(), "="); 3261 if (value != NULL) { 3262 profile->loadFormats(value + 1); 3263 } 3264 } 3265 if (profile->mChannelMasks[0] == 0) { 3266 reply = mpClientInterface->getParameters(output, 3267 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 3268 ALOGV("checkOutputsForDevice() supported channel masks %s", 3269 reply.string()); 3270 value = strpbrk((char *)reply.string(), "="); 3271 if (value != NULL) { 3272 profile->loadOutChannels(value + 1); 3273 } 3274 } 3275 if (((profile->mSamplingRates[0] == 0) && 3276 (profile->mSamplingRates.size() < 2)) || 3277 ((profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) && 3278 (profile->mFormats.size() < 2)) || 3279 ((profile->mChannelMasks[0] == 0) && 3280 (profile->mChannelMasks.size() < 2))) { 3281 ALOGW("checkOutputsForDevice() missing param"); 3282 mpClientInterface->closeOutput(output); 3283 output = AUDIO_IO_HANDLE_NONE; 3284 } else if (profile->mSamplingRates[0] == 0 || profile->mFormats[0] == 0 || 3285 profile->mChannelMasks[0] == 0) { 3286 mpClientInterface->closeOutput(output); 3287 config.sample_rate = profile->pickSamplingRate(); 3288 config.channel_mask = profile->pickChannelMask(); 3289 config.format = profile->pickFormat(); 3290 config.offload_info.sample_rate = config.sample_rate; 3291 config.offload_info.channel_mask = config.channel_mask; 3292 config.offload_info.format = config.format; 3293 status = mpClientInterface->openOutput(profile->mModule->mHandle, 3294 &output, 3295 &config, 3296 &desc->mDevice, 3297 address, 3298 &desc->mLatency, 3299 desc->mFlags); 3300 if (status == NO_ERROR) { 3301 desc->mSamplingRate = config.sample_rate; 3302 desc->mChannelMask = config.channel_mask; 3303 desc->mFormat = config.format; 3304 } else { 3305 output = AUDIO_IO_HANDLE_NONE; 3306 } 3307 } 3308 3309 if (output != AUDIO_IO_HANDLE_NONE) { 3310 addOutput(output, desc); 3311 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) { 3312 audio_io_handle_t duplicatedOutput = AUDIO_IO_HANDLE_NONE; 3313 3314 // set initial stream volume for device 3315 applyStreamVolumes(output, device, 0, true); 3316 3317 //TODO: configure audio effect output stage here 3318 3319 // open a duplicating output thread for the new output and the primary output 3320 duplicatedOutput = mpClientInterface->openDuplicateOutput(output, 3321 mPrimaryOutput); 3322 if (duplicatedOutput != AUDIO_IO_HANDLE_NONE) { 3323 // add duplicated output descriptor 3324 sp<AudioOutputDescriptor> dupOutputDesc = 3325 new AudioOutputDescriptor(NULL); 3326 dupOutputDesc->mOutput1 = mOutputs.valueFor(mPrimaryOutput); 3327 dupOutputDesc->mOutput2 = mOutputs.valueFor(output); 3328 dupOutputDesc->mSamplingRate = desc->mSamplingRate; 3329 dupOutputDesc->mFormat = desc->mFormat; 3330 dupOutputDesc->mChannelMask = desc->mChannelMask; 3331 dupOutputDesc->mLatency = desc->mLatency; 3332 addOutput(duplicatedOutput, dupOutputDesc); 3333 applyStreamVolumes(duplicatedOutput, device, 0, true); 3334 } else { 3335 ALOGW("checkOutputsForDevice() could not open dup output for %d and %d", 3336 mPrimaryOutput, output); 3337 mpClientInterface->closeOutput(output); 3338 mOutputs.removeItem(output); 3339 nextAudioPortGeneration(); 3340 output = AUDIO_IO_HANDLE_NONE; 3341 } 3342 } 3343 } 3344 } else { 3345 output = AUDIO_IO_HANDLE_NONE; 3346 } 3347 if (output == AUDIO_IO_HANDLE_NONE) { 3348 ALOGW("checkOutputsForDevice() could not open output for device %x", device); 3349 profiles.removeAt(profile_index); 3350 profile_index--; 3351 } else { 3352 outputs.add(output); 3353 devDesc->importAudioPort(profile); 3354 3355 if (deviceDistinguishesOnAddress(device)) { 3356 ALOGV("checkOutputsForDevice(): setOutputDevice(dev=0x%x, addr=%s)", 3357 device, address.string()); 3358 setOutputDevice(output, device, true/*force*/, 0/*delay*/, 3359 NULL/*patch handle*/, address.string()); 3360 } 3361 ALOGV("checkOutputsForDevice(): adding output %d", output); 3362 } 3363 } 3364 3365 if (profiles.isEmpty()) { 3366 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 3367 return BAD_VALUE; 3368 } 3369 } else { // Disconnect 3370 // check if one opened output is not needed any more after disconnecting one device 3371 for (size_t i = 0; i < mOutputs.size(); i++) { 3372 desc = mOutputs.valueAt(i); 3373 if (!desc->isDuplicated()) { 3374 if (!(desc->mProfile->mSupportedDevices.types() 3375 & mAvailableOutputDevices.types())) { 3376 ALOGV("checkOutputsForDevice(): disconnecting adding output %d", 3377 mOutputs.keyAt(i)); 3378 outputs.add(mOutputs.keyAt(i)); 3379 } else if (deviceDistinguishesOnAddress(device) && 3380 // exact match on device 3381 (desc->mProfile->mSupportedDevices.types() == device)) { 3382 findIoHandlesByAddress(desc, address, outputs); 3383 } 3384 } 3385 } 3386 // Clear any profiles associated with the disconnected device. 3387 for (size_t i = 0; i < mHwModules.size(); i++) 3388 { 3389 if (mHwModules[i]->mHandle == 0) { 3390 continue; 3391 } 3392 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3393 { 3394 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 3395 if (profile->mSupportedDevices.types() & device) { 3396 ALOGV("checkOutputsForDevice(): " 3397 "clearing direct output profile %zu on module %zu", j, i); 3398 if (profile->mSamplingRates[0] == 0) { 3399 profile->mSamplingRates.clear(); 3400 profile->mSamplingRates.add(0); 3401 } 3402 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3403 profile->mFormats.clear(); 3404 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 3405 } 3406 if (profile->mChannelMasks[0] == 0) { 3407 profile->mChannelMasks.clear(); 3408 profile->mChannelMasks.add(0); 3409 } 3410 } 3411 } 3412 } 3413 } 3414 return NO_ERROR; 3415} 3416 3417status_t AudioPolicyManager::checkInputsForDevice(audio_devices_t device, 3418 audio_policy_dev_state_t state, 3419 SortedVector<audio_io_handle_t>& inputs, 3420 const String8 address) 3421{ 3422 sp<AudioInputDescriptor> desc; 3423 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 3424 // first list already open inputs that can be routed to this device 3425 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 3426 desc = mInputs.valueAt(input_index); 3427 if (desc->mProfile->mSupportedDevices.types() & (device & ~AUDIO_DEVICE_BIT_IN)) { 3428 ALOGV("checkInputsForDevice(): adding opened input %d", mInputs.keyAt(input_index)); 3429 inputs.add(mInputs.keyAt(input_index)); 3430 } 3431 } 3432 3433 // then look for input profiles that can be routed to this device 3434 SortedVector< sp<IOProfile> > profiles; 3435 for (size_t module_idx = 0; module_idx < mHwModules.size(); module_idx++) 3436 { 3437 if (mHwModules[module_idx]->mHandle == 0) { 3438 continue; 3439 } 3440 for (size_t profile_index = 0; 3441 profile_index < mHwModules[module_idx]->mInputProfiles.size(); 3442 profile_index++) 3443 { 3444 if (mHwModules[module_idx]->mInputProfiles[profile_index]->mSupportedDevices.types() 3445 & (device & ~AUDIO_DEVICE_BIT_IN)) { 3446 ALOGV("checkInputsForDevice(): adding profile %zu from module %zu", 3447 profile_index, module_idx); 3448 profiles.add(mHwModules[module_idx]->mInputProfiles[profile_index]); 3449 } 3450 } 3451 } 3452 3453 if (profiles.isEmpty() && inputs.isEmpty()) { 3454 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 3455 return BAD_VALUE; 3456 } 3457 3458 // open inputs for matching profiles if needed. Direct inputs are also opened to 3459 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 3460 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 3461 3462 sp<IOProfile> profile = profiles[profile_index]; 3463 // nothing to do if one input is already opened for this profile 3464 size_t input_index; 3465 for (input_index = 0; input_index < mInputs.size(); input_index++) { 3466 desc = mInputs.valueAt(input_index); 3467 if (desc->mProfile == profile) { 3468 break; 3469 } 3470 } 3471 if (input_index != mInputs.size()) { 3472 continue; 3473 } 3474 3475 ALOGV("opening input for device 0x%X with params %s", device, address.string()); 3476 desc = new AudioInputDescriptor(profile); 3477 desc->mDevice = device; 3478 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3479 config.sample_rate = desc->mSamplingRate; 3480 config.channel_mask = desc->mChannelMask; 3481 config.format = desc->mFormat; 3482 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 3483 status_t status = mpClientInterface->openInput(profile->mModule->mHandle, 3484 &input, 3485 &config, 3486 &desc->mDevice, 3487 address, 3488 AUDIO_SOURCE_MIC, 3489 AUDIO_INPUT_FLAG_NONE /*FIXME*/); 3490 3491 if (status == NO_ERROR) { 3492 desc->mSamplingRate = config.sample_rate; 3493 desc->mChannelMask = config.channel_mask; 3494 desc->mFormat = config.format; 3495 3496 if (!address.isEmpty()) { 3497 char *param = audio_device_address_to_parameter(device, address); 3498 mpClientInterface->setParameters(input, String8(param)); 3499 free(param); 3500 } 3501 3502 // Here is where we step through and resolve any "dynamic" fields 3503 String8 reply; 3504 char *value; 3505 if (profile->mSamplingRates[0] == 0) { 3506 reply = mpClientInterface->getParameters(input, 3507 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 3508 ALOGV("checkInputsForDevice() direct input sup sampling rates %s", 3509 reply.string()); 3510 value = strpbrk((char *)reply.string(), "="); 3511 if (value != NULL) { 3512 profile->loadSamplingRates(value + 1); 3513 } 3514 } 3515 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3516 reply = mpClientInterface->getParameters(input, 3517 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 3518 ALOGV("checkInputsForDevice() direct input sup formats %s", reply.string()); 3519 value = strpbrk((char *)reply.string(), "="); 3520 if (value != NULL) { 3521 profile->loadFormats(value + 1); 3522 } 3523 } 3524 if (profile->mChannelMasks[0] == 0) { 3525 reply = mpClientInterface->getParameters(input, 3526 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 3527 ALOGV("checkInputsForDevice() direct input sup channel masks %s", 3528 reply.string()); 3529 value = strpbrk((char *)reply.string(), "="); 3530 if (value != NULL) { 3531 profile->loadInChannels(value + 1); 3532 } 3533 } 3534 if (((profile->mSamplingRates[0] == 0) && (profile->mSamplingRates.size() < 2)) || 3535 ((profile->mFormats[0] == 0) && (profile->mFormats.size() < 2)) || 3536 ((profile->mChannelMasks[0] == 0) && (profile->mChannelMasks.size() < 2))) { 3537 ALOGW("checkInputsForDevice() direct input missing param"); 3538 mpClientInterface->closeInput(input); 3539 input = AUDIO_IO_HANDLE_NONE; 3540 } 3541 3542 if (input != 0) { 3543 addInput(input, desc); 3544 } 3545 } // endif input != 0 3546 3547 if (input == AUDIO_IO_HANDLE_NONE) { 3548 ALOGW("checkInputsForDevice() could not open input for device 0x%X", device); 3549 profiles.removeAt(profile_index); 3550 profile_index--; 3551 } else { 3552 inputs.add(input); 3553 ALOGV("checkInputsForDevice(): adding input %d", input); 3554 } 3555 } // end scan profiles 3556 3557 if (profiles.isEmpty()) { 3558 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 3559 return BAD_VALUE; 3560 } 3561 } else { 3562 // Disconnect 3563 // check if one opened input is not needed any more after disconnecting one device 3564 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 3565 desc = mInputs.valueAt(input_index); 3566 if (!(desc->mProfile->mSupportedDevices.types() & mAvailableInputDevices.types() & 3567 ~AUDIO_DEVICE_BIT_IN)) { 3568 ALOGV("checkInputsForDevice(): disconnecting adding input %d", 3569 mInputs.keyAt(input_index)); 3570 inputs.add(mInputs.keyAt(input_index)); 3571 } 3572 } 3573 // Clear any profiles associated with the disconnected device. 3574 for (size_t module_index = 0; module_index < mHwModules.size(); module_index++) { 3575 if (mHwModules[module_index]->mHandle == 0) { 3576 continue; 3577 } 3578 for (size_t profile_index = 0; 3579 profile_index < mHwModules[module_index]->mInputProfiles.size(); 3580 profile_index++) { 3581 sp<IOProfile> profile = mHwModules[module_index]->mInputProfiles[profile_index]; 3582 if (profile->mSupportedDevices.types() & device & ~AUDIO_DEVICE_BIT_IN) { 3583 ALOGV("checkInputsForDevice(): clearing direct input profile %zu on module %zu", 3584 profile_index, module_index); 3585 if (profile->mSamplingRates[0] == 0) { 3586 profile->mSamplingRates.clear(); 3587 profile->mSamplingRates.add(0); 3588 } 3589 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3590 profile->mFormats.clear(); 3591 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 3592 } 3593 if (profile->mChannelMasks[0] == 0) { 3594 profile->mChannelMasks.clear(); 3595 profile->mChannelMasks.add(0); 3596 } 3597 } 3598 } 3599 } 3600 } // end disconnect 3601 3602 return NO_ERROR; 3603} 3604 3605 3606void AudioPolicyManager::closeOutput(audio_io_handle_t output) 3607{ 3608 ALOGV("closeOutput(%d)", output); 3609 3610 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 3611 if (outputDesc == NULL) { 3612 ALOGW("closeOutput() unknown output %d", output); 3613 return; 3614 } 3615 3616 // look for duplicated outputs connected to the output being removed. 3617 for (size_t i = 0; i < mOutputs.size(); i++) { 3618 sp<AudioOutputDescriptor> dupOutputDesc = mOutputs.valueAt(i); 3619 if (dupOutputDesc->isDuplicated() && 3620 (dupOutputDesc->mOutput1 == outputDesc || 3621 dupOutputDesc->mOutput2 == outputDesc)) { 3622 sp<AudioOutputDescriptor> outputDesc2; 3623 if (dupOutputDesc->mOutput1 == outputDesc) { 3624 outputDesc2 = dupOutputDesc->mOutput2; 3625 } else { 3626 outputDesc2 = dupOutputDesc->mOutput1; 3627 } 3628 // As all active tracks on duplicated output will be deleted, 3629 // and as they were also referenced on the other output, the reference 3630 // count for their stream type must be adjusted accordingly on 3631 // the other output. 3632 for (int j = 0; j < AUDIO_STREAM_CNT; j++) { 3633 int refCount = dupOutputDesc->mRefCount[j]; 3634 outputDesc2->changeRefCount((audio_stream_type_t)j,-refCount); 3635 } 3636 audio_io_handle_t duplicatedOutput = mOutputs.keyAt(i); 3637 ALOGV("closeOutput() closing also duplicated output %d", duplicatedOutput); 3638 3639 mpClientInterface->closeOutput(duplicatedOutput); 3640 mOutputs.removeItem(duplicatedOutput); 3641 } 3642 } 3643 3644 nextAudioPortGeneration(); 3645 3646 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3647 if (index >= 0) { 3648 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3649 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 3650 mAudioPatches.removeItemsAt(index); 3651 mpClientInterface->onAudioPatchListUpdate(); 3652 } 3653 3654 AudioParameter param; 3655 param.add(String8("closing"), String8("true")); 3656 mpClientInterface->setParameters(output, param.toString()); 3657 3658 mpClientInterface->closeOutput(output); 3659 mOutputs.removeItem(output); 3660 mPreviousOutputs = mOutputs; 3661} 3662 3663void AudioPolicyManager::closeInput(audio_io_handle_t input) 3664{ 3665 ALOGV("closeInput(%d)", input); 3666 3667 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 3668 if (inputDesc == NULL) { 3669 ALOGW("closeInput() unknown input %d", input); 3670 return; 3671 } 3672 3673 nextAudioPortGeneration(); 3674 3675 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 3676 if (index >= 0) { 3677 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3678 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 3679 mAudioPatches.removeItemsAt(index); 3680 mpClientInterface->onAudioPatchListUpdate(); 3681 } 3682 3683 mpClientInterface->closeInput(input); 3684 mInputs.removeItem(input); 3685} 3686 3687SortedVector<audio_io_handle_t> AudioPolicyManager::getOutputsForDevice(audio_devices_t device, 3688 DefaultKeyedVector<audio_io_handle_t, sp<AudioOutputDescriptor> > openOutputs) 3689{ 3690 SortedVector<audio_io_handle_t> outputs; 3691 3692 ALOGVV("getOutputsForDevice() device %04x", device); 3693 for (size_t i = 0; i < openOutputs.size(); i++) { 3694 ALOGVV("output %d isDuplicated=%d device=%04x", 3695 i, openOutputs.valueAt(i)->isDuplicated(), openOutputs.valueAt(i)->supportedDevices()); 3696 if ((device & openOutputs.valueAt(i)->supportedDevices()) == device) { 3697 ALOGVV("getOutputsForDevice() found output %d", openOutputs.keyAt(i)); 3698 outputs.add(openOutputs.keyAt(i)); 3699 } 3700 } 3701 return outputs; 3702} 3703 3704bool AudioPolicyManager::vectorsEqual(SortedVector<audio_io_handle_t>& outputs1, 3705 SortedVector<audio_io_handle_t>& outputs2) 3706{ 3707 if (outputs1.size() != outputs2.size()) { 3708 return false; 3709 } 3710 for (size_t i = 0; i < outputs1.size(); i++) { 3711 if (outputs1[i] != outputs2[i]) { 3712 return false; 3713 } 3714 } 3715 return true; 3716} 3717 3718void AudioPolicyManager::checkOutputForStrategy(routing_strategy strategy) 3719{ 3720 audio_devices_t oldDevice = getDeviceForStrategy(strategy, true /*fromCache*/); 3721 audio_devices_t newDevice = getDeviceForStrategy(strategy, false /*fromCache*/); 3722 SortedVector<audio_io_handle_t> srcOutputs = getOutputsForDevice(oldDevice, mPreviousOutputs); 3723 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(newDevice, mOutputs); 3724 3725 if (!vectorsEqual(srcOutputs,dstOutputs)) { 3726 ALOGV("checkOutputForStrategy() strategy %d, moving from output %d to output %d", 3727 strategy, srcOutputs[0], dstOutputs[0]); 3728 // mute strategy while moving tracks from one output to another 3729 for (size_t i = 0; i < srcOutputs.size(); i++) { 3730 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(srcOutputs[i]); 3731 if (desc->isStrategyActive(strategy)) { 3732 setStrategyMute(strategy, true, srcOutputs[i]); 3733 setStrategyMute(strategy, false, srcOutputs[i], MUTE_TIME_MS, newDevice); 3734 } 3735 } 3736 3737 // Move effects associated to this strategy from previous output to new output 3738 if (strategy == STRATEGY_MEDIA) { 3739 audio_io_handle_t fxOutput = selectOutputForEffects(dstOutputs); 3740 SortedVector<audio_io_handle_t> moved; 3741 for (size_t i = 0; i < mEffects.size(); i++) { 3742 sp<EffectDescriptor> effectDesc = mEffects.valueAt(i); 3743 if (effectDesc->mSession == AUDIO_SESSION_OUTPUT_MIX && 3744 effectDesc->mIo != fxOutput) { 3745 if (moved.indexOf(effectDesc->mIo) < 0) { 3746 ALOGV("checkOutputForStrategy() moving effect %d to output %d", 3747 mEffects.keyAt(i), fxOutput); 3748 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, effectDesc->mIo, 3749 fxOutput); 3750 moved.add(effectDesc->mIo); 3751 } 3752 effectDesc->mIo = fxOutput; 3753 } 3754 } 3755 } 3756 // Move tracks associated to this strategy from previous output to new output 3757 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 3758 if (getStrategy((audio_stream_type_t)i) == strategy) { 3759 mpClientInterface->invalidateStream((audio_stream_type_t)i); 3760 } 3761 } 3762 } 3763} 3764 3765void AudioPolicyManager::checkOutputForAllStrategies() 3766{ 3767 if (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) 3768 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 3769 checkOutputForStrategy(STRATEGY_PHONE); 3770 if (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] != AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) 3771 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 3772 checkOutputForStrategy(STRATEGY_SONIFICATION); 3773 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 3774 checkOutputForStrategy(STRATEGY_MEDIA); 3775 checkOutputForStrategy(STRATEGY_DTMF); 3776} 3777 3778audio_io_handle_t AudioPolicyManager::getA2dpOutput() 3779{ 3780 for (size_t i = 0; i < mOutputs.size(); i++) { 3781 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 3782 if (!outputDesc->isDuplicated() && outputDesc->device() & AUDIO_DEVICE_OUT_ALL_A2DP) { 3783 return mOutputs.keyAt(i); 3784 } 3785 } 3786 3787 return 0; 3788} 3789 3790void AudioPolicyManager::checkA2dpSuspend() 3791{ 3792 audio_io_handle_t a2dpOutput = getA2dpOutput(); 3793 if (a2dpOutput == 0) { 3794 mA2dpSuspended = false; 3795 return; 3796 } 3797 3798 bool isScoConnected = 3799 ((mAvailableInputDevices.types() & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET & 3800 ~AUDIO_DEVICE_BIT_IN) != 0) || 3801 ((mAvailableOutputDevices.types() & AUDIO_DEVICE_OUT_ALL_SCO) != 0); 3802 // suspend A2DP output if: 3803 // (NOT already suspended) && 3804 // ((SCO device is connected && 3805 // (forced usage for communication || for record is SCO))) || 3806 // (phone state is ringing || in call) 3807 // 3808 // restore A2DP output if: 3809 // (Already suspended) && 3810 // ((SCO device is NOT connected || 3811 // (forced usage NOT for communication && NOT for record is SCO))) && 3812 // (phone state is NOT ringing && NOT in call) 3813 // 3814 if (mA2dpSuspended) { 3815 if ((!isScoConnected || 3816 ((mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] != AUDIO_POLICY_FORCE_BT_SCO) && 3817 (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] != AUDIO_POLICY_FORCE_BT_SCO))) && 3818 ((mPhoneState != AUDIO_MODE_IN_CALL) && 3819 (mPhoneState != AUDIO_MODE_RINGTONE))) { 3820 3821 mpClientInterface->restoreOutput(a2dpOutput); 3822 mA2dpSuspended = false; 3823 } 3824 } else { 3825 if ((isScoConnected && 3826 ((mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO) || 3827 (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO))) || 3828 ((mPhoneState == AUDIO_MODE_IN_CALL) || 3829 (mPhoneState == AUDIO_MODE_RINGTONE))) { 3830 3831 mpClientInterface->suspendOutput(a2dpOutput); 3832 mA2dpSuspended = true; 3833 } 3834 } 3835} 3836 3837audio_devices_t AudioPolicyManager::getNewOutputDevice(audio_io_handle_t output, bool fromCache) 3838{ 3839 audio_devices_t device = AUDIO_DEVICE_NONE; 3840 3841 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 3842 3843 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3844 if (index >= 0) { 3845 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3846 if (patchDesc->mUid != mUidCached) { 3847 ALOGV("getNewOutputDevice() device %08x forced by patch %d", 3848 outputDesc->device(), outputDesc->mPatchHandle); 3849 return outputDesc->device(); 3850 } 3851 } 3852 3853 // check the following by order of priority to request a routing change if necessary: 3854 // 1: the strategy enforced audible is active and enforced on the output: 3855 // use device for strategy enforced audible 3856 // 2: we are in call or the strategy phone is active on the output: 3857 // use device for strategy phone 3858 // 3: the strategy for enforced audible is active but not enforced on the output: 3859 // use the device for strategy enforced audible 3860 // 4: the strategy sonification is active on the output: 3861 // use device for strategy sonification 3862 // 5: the strategy "respectful" sonification is active on the output: 3863 // use device for strategy "respectful" sonification 3864 // 6: the strategy media is active on the output: 3865 // use device for strategy media 3866 // 7: the strategy DTMF is active on the output: 3867 // use device for strategy DTMF 3868 // 8: the strategy for beacon, a.k.a. "transmitted through speaker" is active on the output: 3869 // use device for strategy t-t-s 3870 if (outputDesc->isStrategyActive(STRATEGY_ENFORCED_AUDIBLE) && 3871 mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) { 3872 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 3873 } else if (isInCall() || 3874 outputDesc->isStrategyActive(STRATEGY_PHONE)) { 3875 device = getDeviceForStrategy(STRATEGY_PHONE, fromCache); 3876 } else if (outputDesc->isStrategyActive(STRATEGY_ENFORCED_AUDIBLE)) { 3877 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 3878 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION)) { 3879 device = getDeviceForStrategy(STRATEGY_SONIFICATION, fromCache); 3880 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION_RESPECTFUL)) { 3881 device = getDeviceForStrategy(STRATEGY_SONIFICATION_RESPECTFUL, fromCache); 3882 } else if (outputDesc->isStrategyActive(STRATEGY_MEDIA)) { 3883 device = getDeviceForStrategy(STRATEGY_MEDIA, fromCache); 3884 } else if (outputDesc->isStrategyActive(STRATEGY_DTMF)) { 3885 device = getDeviceForStrategy(STRATEGY_DTMF, fromCache); 3886 } else if (outputDesc->isStrategyActive(STRATEGY_TRANSMITTED_THROUGH_SPEAKER)) { 3887 device = getDeviceForStrategy(STRATEGY_TRANSMITTED_THROUGH_SPEAKER, fromCache); 3888 } 3889 3890 ALOGV("getNewOutputDevice() selected device %x", device); 3891 return device; 3892} 3893 3894audio_devices_t AudioPolicyManager::getNewInputDevice(audio_io_handle_t input) 3895{ 3896 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 3897 3898 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 3899 if (index >= 0) { 3900 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3901 if (patchDesc->mUid != mUidCached) { 3902 ALOGV("getNewInputDevice() device %08x forced by patch %d", 3903 inputDesc->mDevice, inputDesc->mPatchHandle); 3904 return inputDesc->mDevice; 3905 } 3906 } 3907 3908 audio_devices_t device = getDeviceForInputSource(inputDesc->mInputSource); 3909 3910 ALOGV("getNewInputDevice() selected device %x", device); 3911 return device; 3912} 3913 3914uint32_t AudioPolicyManager::getStrategyForStream(audio_stream_type_t stream) { 3915 return (uint32_t)getStrategy(stream); 3916} 3917 3918audio_devices_t AudioPolicyManager::getDevicesForStream(audio_stream_type_t stream) { 3919 // By checking the range of stream before calling getStrategy, we avoid 3920 // getStrategy's behavior for invalid streams. getStrategy would do a ALOGE 3921 // and then return STRATEGY_MEDIA, but we want to return the empty set. 3922 if (stream < (audio_stream_type_t) 0 || stream >= AUDIO_STREAM_CNT) { 3923 return AUDIO_DEVICE_NONE; 3924 } 3925 audio_devices_t devices; 3926 AudioPolicyManager::routing_strategy strategy = getStrategy(stream); 3927 devices = getDeviceForStrategy(strategy, true /*fromCache*/); 3928 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(devices, mOutputs); 3929 for (size_t i = 0; i < outputs.size(); i++) { 3930 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 3931 if (outputDesc->isStrategyActive(strategy)) { 3932 devices = outputDesc->device(); 3933 break; 3934 } 3935 } 3936 3937 /*Filter SPEAKER_SAFE out of results, as AudioService doesn't know about it 3938 and doesn't really need to.*/ 3939 if (devices & AUDIO_DEVICE_OUT_SPEAKER_SAFE) { 3940 devices |= AUDIO_DEVICE_OUT_SPEAKER; 3941 devices &= ~AUDIO_DEVICE_OUT_SPEAKER_SAFE; 3942 } 3943 3944 return devices; 3945} 3946 3947AudioPolicyManager::routing_strategy AudioPolicyManager::getStrategy( 3948 audio_stream_type_t stream) { 3949 // stream to strategy mapping 3950 switch (stream) { 3951 case AUDIO_STREAM_VOICE_CALL: 3952 case AUDIO_STREAM_BLUETOOTH_SCO: 3953 return STRATEGY_PHONE; 3954 case AUDIO_STREAM_RING: 3955 case AUDIO_STREAM_ALARM: 3956 return STRATEGY_SONIFICATION; 3957 case AUDIO_STREAM_NOTIFICATION: 3958 return STRATEGY_SONIFICATION_RESPECTFUL; 3959 case AUDIO_STREAM_DTMF: 3960 return STRATEGY_DTMF; 3961 default: 3962 ALOGE("unknown stream type"); 3963 case AUDIO_STREAM_SYSTEM: 3964 // NOTE: SYSTEM stream uses MEDIA strategy because muting music and switching outputs 3965 // while key clicks are played produces a poor result 3966 case AUDIO_STREAM_MUSIC: 3967 return STRATEGY_MEDIA; 3968 case AUDIO_STREAM_ENFORCED_AUDIBLE: 3969 return STRATEGY_ENFORCED_AUDIBLE; 3970 case AUDIO_STREAM_TTS: 3971 return STRATEGY_TRANSMITTED_THROUGH_SPEAKER; 3972 } 3973} 3974 3975uint32_t AudioPolicyManager::getStrategyForAttr(const audio_attributes_t *attr) { 3976 // flags to strategy mapping 3977 if ((attr->flags & AUDIO_FLAG_BEACON) == AUDIO_FLAG_BEACON) { 3978 return (uint32_t) STRATEGY_TRANSMITTED_THROUGH_SPEAKER; 3979 } 3980 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 3981 return (uint32_t) STRATEGY_ENFORCED_AUDIBLE; 3982 } 3983 3984 // usage to strategy mapping 3985 switch (attr->usage) { 3986 case AUDIO_USAGE_MEDIA: 3987 case AUDIO_USAGE_GAME: 3988 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 3989 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 3990 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 3991 return (uint32_t) STRATEGY_MEDIA; 3992 3993 case AUDIO_USAGE_VOICE_COMMUNICATION: 3994 return (uint32_t) STRATEGY_PHONE; 3995 3996 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 3997 return (uint32_t) STRATEGY_DTMF; 3998 3999 case AUDIO_USAGE_ALARM: 4000 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 4001 return (uint32_t) STRATEGY_SONIFICATION; 4002 4003 case AUDIO_USAGE_NOTIFICATION: 4004 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 4005 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 4006 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 4007 case AUDIO_USAGE_NOTIFICATION_EVENT: 4008 return (uint32_t) STRATEGY_SONIFICATION_RESPECTFUL; 4009 4010 case AUDIO_USAGE_UNKNOWN: 4011 default: 4012 return (uint32_t) STRATEGY_MEDIA; 4013 } 4014} 4015 4016void AudioPolicyManager::handleNotificationRoutingForStream(audio_stream_type_t stream) { 4017 switch(stream) { 4018 case AUDIO_STREAM_MUSIC: 4019 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 4020 updateDevicesAndOutputs(); 4021 break; 4022 default: 4023 break; 4024 } 4025} 4026 4027bool AudioPolicyManager::isAnyOutputActive(audio_stream_type_t streamToIgnore) { 4028 for (size_t s = 0 ; s < AUDIO_STREAM_CNT ; s++) { 4029 if (s == (size_t) streamToIgnore) { 4030 continue; 4031 } 4032 for (size_t i = 0; i < mOutputs.size(); i++) { 4033 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 4034 if (outputDesc->mRefCount[s] != 0) { 4035 return true; 4036 } 4037 } 4038 } 4039 return false; 4040} 4041 4042uint32_t AudioPolicyManager::handleEventForBeacon(int event) { 4043 switch(event) { 4044 case STARTING_OUTPUT: 4045 mBeaconMuteRefCount++; 4046 break; 4047 case STOPPING_OUTPUT: 4048 if (mBeaconMuteRefCount > 0) { 4049 mBeaconMuteRefCount--; 4050 } 4051 break; 4052 case STARTING_BEACON: 4053 mBeaconPlayingRefCount++; 4054 break; 4055 case STOPPING_BEACON: 4056 if (mBeaconPlayingRefCount > 0) { 4057 mBeaconPlayingRefCount--; 4058 } 4059 break; 4060 } 4061 4062 if (mBeaconMuteRefCount > 0) { 4063 // any playback causes beacon to be muted 4064 return setBeaconMute(true); 4065 } else { 4066 // no other playback: unmute when beacon starts playing, mute when it stops 4067 return setBeaconMute(mBeaconPlayingRefCount == 0); 4068 } 4069} 4070 4071uint32_t AudioPolicyManager::setBeaconMute(bool mute) { 4072 ALOGV("setBeaconMute(%d) mBeaconMuteRefCount=%d mBeaconPlayingRefCount=%d", 4073 mute, mBeaconMuteRefCount, mBeaconPlayingRefCount); 4074 // keep track of muted state to avoid repeating mute/unmute operations 4075 if (mBeaconMuted != mute) { 4076 // mute/unmute AUDIO_STREAM_TTS on all outputs 4077 ALOGV("\t muting %d", mute); 4078 uint32_t maxLatency = 0; 4079 for (size_t i = 0; i < mOutputs.size(); i++) { 4080 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 4081 setStreamMute(AUDIO_STREAM_TTS, mute/*on*/, 4082 desc->mIoHandle, 4083 0 /*delay*/, AUDIO_DEVICE_NONE); 4084 const uint32_t latency = desc->latency() * 2; 4085 if (latency > maxLatency) { 4086 maxLatency = latency; 4087 } 4088 } 4089 mBeaconMuted = mute; 4090 return maxLatency; 4091 } 4092 return 0; 4093} 4094 4095audio_devices_t AudioPolicyManager::getDeviceForStrategy(routing_strategy strategy, 4096 bool fromCache) 4097{ 4098 uint32_t device = AUDIO_DEVICE_NONE; 4099 4100 if (fromCache) { 4101 ALOGVV("getDeviceForStrategy() from cache strategy %d, device %x", 4102 strategy, mDeviceForStrategy[strategy]); 4103 return mDeviceForStrategy[strategy]; 4104 } 4105 audio_devices_t availableOutputDeviceTypes = mAvailableOutputDevices.types(); 4106 switch (strategy) { 4107 4108 case STRATEGY_TRANSMITTED_THROUGH_SPEAKER: 4109 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4110 if (!device) { 4111 ALOGE("getDeviceForStrategy() no device found for "\ 4112 "STRATEGY_TRANSMITTED_THROUGH_SPEAKER"); 4113 } 4114 break; 4115 4116 case STRATEGY_SONIFICATION_RESPECTFUL: 4117 if (isInCall()) { 4118 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 4119 } else if (isStreamActiveRemotely(AUDIO_STREAM_MUSIC, 4120 SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { 4121 // while media is playing on a remote device, use the the sonification behavior. 4122 // Note that we test this usecase before testing if media is playing because 4123 // the isStreamActive() method only informs about the activity of a stream, not 4124 // if it's for local playback. Note also that we use the same delay between both tests 4125 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 4126 //user "safe" speaker if available instead of normal speaker to avoid triggering 4127 //other acoustic safety mechanisms for notification 4128 if (device == AUDIO_DEVICE_OUT_SPEAKER && (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER_SAFE)) 4129 device = AUDIO_DEVICE_OUT_SPEAKER_SAFE; 4130 } else if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { 4131 // while media is playing (or has recently played), use the same device 4132 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); 4133 } else { 4134 // when media is not playing anymore, fall back on the sonification behavior 4135 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 4136 //user "safe" speaker if available instead of normal speaker to avoid triggering 4137 //other acoustic safety mechanisms for notification 4138 if (device == AUDIO_DEVICE_OUT_SPEAKER && (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER_SAFE)) 4139 device = AUDIO_DEVICE_OUT_SPEAKER_SAFE; 4140 } 4141 4142 break; 4143 4144 case STRATEGY_DTMF: 4145 if (!isInCall()) { 4146 // when off call, DTMF strategy follows the same rules as MEDIA strategy 4147 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); 4148 break; 4149 } 4150 // when in call, DTMF and PHONE strategies follow the same rules 4151 // FALL THROUGH 4152 4153 case STRATEGY_PHONE: 4154 // Force use of only devices on primary output if: 4155 // - in call AND 4156 // - cannot route from voice call RX OR 4157 // - audio HAL version is < 3.0 and TX device is on the primary HW module 4158 if (mPhoneState == AUDIO_MODE_IN_CALL) { 4159 audio_devices_t txDevice = getDeviceForInputSource(AUDIO_SOURCE_VOICE_COMMUNICATION); 4160 sp<AudioOutputDescriptor> hwOutputDesc = mOutputs.valueFor(mPrimaryOutput); 4161 if (((mAvailableInputDevices.types() & 4162 AUDIO_DEVICE_IN_TELEPHONY_RX & ~AUDIO_DEVICE_BIT_IN) == 0) || 4163 (((txDevice & availablePrimaryInputDevices() & ~AUDIO_DEVICE_BIT_IN) != 0) && 4164 (hwOutputDesc->getAudioPort()->mModule->mHalVersion < 4165 AUDIO_DEVICE_API_VERSION_3_0))) { 4166 availableOutputDeviceTypes = availablePrimaryOutputDevices(); 4167 } 4168 } 4169 // for phone strategy, we first consider the forced use and then the available devices by order 4170 // of priority 4171 switch (mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]) { 4172 case AUDIO_POLICY_FORCE_BT_SCO: 4173 if (!isInCall() || strategy != STRATEGY_DTMF) { 4174 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT; 4175 if (device) break; 4176 } 4177 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET; 4178 if (device) break; 4179 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO; 4180 if (device) break; 4181 // if SCO device is requested but no SCO device is available, fall back to default case 4182 // FALL THROUGH 4183 4184 default: // FORCE_NONE 4185 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to A2DP 4186 if (!isInCall() && 4187 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 4188 (getA2dpOutput() != 0) && !mA2dpSuspended) { 4189 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; 4190 if (device) break; 4191 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; 4192 if (device) break; 4193 } 4194 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; 4195 if (device) break; 4196 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADSET; 4197 if (device) break; 4198 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 4199 if (device) break; 4200 if (mPhoneState != AUDIO_MODE_IN_CALL) { 4201 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 4202 if (device) break; 4203 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 4204 if (device) break; 4205 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 4206 if (device) break; 4207 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 4208 if (device) break; 4209 } 4210 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_EARPIECE; 4211 if (device) break; 4212 device = mDefaultOutputDevice->mDeviceType; 4213 if (device == AUDIO_DEVICE_NONE) { 4214 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE"); 4215 } 4216 break; 4217 4218 case AUDIO_POLICY_FORCE_SPEAKER: 4219 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to 4220 // A2DP speaker when forcing to speaker output 4221 if (!isInCall() && 4222 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 4223 (getA2dpOutput() != 0) && !mA2dpSuspended) { 4224 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; 4225 if (device) break; 4226 } 4227 if (mPhoneState != AUDIO_MODE_IN_CALL) { 4228 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 4229 if (device) break; 4230 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 4231 if (device) break; 4232 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 4233 if (device) break; 4234 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 4235 if (device) break; 4236 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 4237 if (device) break; 4238 } 4239 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_LINE; 4240 if (device) break; 4241 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4242 if (device) break; 4243 device = mDefaultOutputDevice->mDeviceType; 4244 if (device == AUDIO_DEVICE_NONE) { 4245 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE, FORCE_SPEAKER"); 4246 } 4247 break; 4248 } 4249 break; 4250 4251 case STRATEGY_SONIFICATION: 4252 4253 // If incall, just select the STRATEGY_PHONE device: The rest of the behavior is handled by 4254 // handleIncallSonification(). 4255 if (isInCall()) { 4256 device = getDeviceForStrategy(STRATEGY_PHONE, false /*fromCache*/); 4257 break; 4258 } 4259 // FALL THROUGH 4260 4261 case STRATEGY_ENFORCED_AUDIBLE: 4262 // strategy STRATEGY_ENFORCED_AUDIBLE uses same routing policy as STRATEGY_SONIFICATION 4263 // except: 4264 // - when in call where it doesn't default to STRATEGY_PHONE behavior 4265 // - in countries where not enforced in which case it follows STRATEGY_MEDIA 4266 4267 if ((strategy == STRATEGY_SONIFICATION) || 4268 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED)) { 4269 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4270 if (device == AUDIO_DEVICE_NONE) { 4271 ALOGE("getDeviceForStrategy() speaker device not found for STRATEGY_SONIFICATION"); 4272 } 4273 } 4274 // The second device used for sonification is the same as the device used by media strategy 4275 // FALL THROUGH 4276 4277 case STRATEGY_MEDIA: { 4278 uint32_t device2 = AUDIO_DEVICE_NONE; 4279 if (strategy != STRATEGY_SONIFICATION) { 4280 // no sonification on remote submix (e.g. WFD) 4281 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_REMOTE_SUBMIX; 4282 } 4283 if ((device2 == AUDIO_DEVICE_NONE) && 4284 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 4285 (getA2dpOutput() != 0) && !mA2dpSuspended) { 4286 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; 4287 if (device2 == AUDIO_DEVICE_NONE) { 4288 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; 4289 } 4290 if (device2 == AUDIO_DEVICE_NONE) { 4291 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; 4292 } 4293 } 4294 if ((device2 == AUDIO_DEVICE_NONE) && 4295 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] == AUDIO_POLICY_FORCE_SPEAKER)) { 4296 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4297 } 4298 if (device2 == AUDIO_DEVICE_NONE) { 4299 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; 4300 } 4301 if ((device2 == AUDIO_DEVICE_NONE)) { 4302 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_LINE; 4303 } 4304 if (device2 == AUDIO_DEVICE_NONE) { 4305 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADSET; 4306 } 4307 if (device2 == AUDIO_DEVICE_NONE) { 4308 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 4309 } 4310 if (device2 == AUDIO_DEVICE_NONE) { 4311 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 4312 } 4313 if (device2 == AUDIO_DEVICE_NONE) { 4314 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 4315 } 4316 if ((device2 == AUDIO_DEVICE_NONE) && (strategy != STRATEGY_SONIFICATION)) { 4317 // no sonification on aux digital (e.g. HDMI) 4318 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 4319 } 4320 if ((device2 == AUDIO_DEVICE_NONE) && 4321 (mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK] == AUDIO_POLICY_FORCE_ANALOG_DOCK)) { 4322 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 4323 } 4324 if (device2 == AUDIO_DEVICE_NONE) { 4325 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4326 } 4327 int device3 = AUDIO_DEVICE_NONE; 4328 if (strategy == STRATEGY_MEDIA) { 4329 // ARC, SPDIF and AUX_LINE can co-exist with others. 4330 device3 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_HDMI_ARC; 4331 device3 |= (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPDIF); 4332 device3 |= (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_LINE); 4333 } 4334 4335 device2 |= device3; 4336 // device is DEVICE_OUT_SPEAKER if we come from case STRATEGY_SONIFICATION or 4337 // STRATEGY_ENFORCED_AUDIBLE, AUDIO_DEVICE_NONE otherwise 4338 device |= device2; 4339 4340 // If hdmi system audio mode is on, remove speaker out of output list. 4341 if ((strategy == STRATEGY_MEDIA) && 4342 (mForceUse[AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO] == 4343 AUDIO_POLICY_FORCE_HDMI_SYSTEM_AUDIO_ENFORCED)) { 4344 device &= ~AUDIO_DEVICE_OUT_SPEAKER; 4345 } 4346 4347 if (device) break; 4348 device = mDefaultOutputDevice->mDeviceType; 4349 if (device == AUDIO_DEVICE_NONE) { 4350 ALOGE("getDeviceForStrategy() no device found for STRATEGY_MEDIA"); 4351 } 4352 } break; 4353 4354 default: 4355 ALOGW("getDeviceForStrategy() unknown strategy: %d", strategy); 4356 break; 4357 } 4358 4359 ALOGVV("getDeviceForStrategy() strategy %d, device %x", strategy, device); 4360 return device; 4361} 4362 4363void AudioPolicyManager::updateDevicesAndOutputs() 4364{ 4365 for (int i = 0; i < NUM_STRATEGIES; i++) { 4366 mDeviceForStrategy[i] = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 4367 } 4368 mPreviousOutputs = mOutputs; 4369} 4370 4371uint32_t AudioPolicyManager::checkDeviceMuteStrategies(sp<AudioOutputDescriptor> outputDesc, 4372 audio_devices_t prevDevice, 4373 uint32_t delayMs) 4374{ 4375 // mute/unmute strategies using an incompatible device combination 4376 // if muting, wait for the audio in pcm buffer to be drained before proceeding 4377 // if unmuting, unmute only after the specified delay 4378 if (outputDesc->isDuplicated()) { 4379 return 0; 4380 } 4381 4382 uint32_t muteWaitMs = 0; 4383 audio_devices_t device = outputDesc->device(); 4384 bool shouldMute = outputDesc->isActive() && (popcount(device) >= 2); 4385 4386 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 4387 audio_devices_t curDevice = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 4388 curDevice = curDevice & outputDesc->mProfile->mSupportedDevices.types(); 4389 bool mute = shouldMute && (curDevice & device) && (curDevice != device); 4390 bool doMute = false; 4391 4392 if (mute && !outputDesc->mStrategyMutedByDevice[i]) { 4393 doMute = true; 4394 outputDesc->mStrategyMutedByDevice[i] = true; 4395 } else if (!mute && outputDesc->mStrategyMutedByDevice[i]){ 4396 doMute = true; 4397 outputDesc->mStrategyMutedByDevice[i] = false; 4398 } 4399 if (doMute) { 4400 for (size_t j = 0; j < mOutputs.size(); j++) { 4401 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(j); 4402 // skip output if it does not share any device with current output 4403 if ((desc->supportedDevices() & outputDesc->supportedDevices()) 4404 == AUDIO_DEVICE_NONE) { 4405 continue; 4406 } 4407 audio_io_handle_t curOutput = mOutputs.keyAt(j); 4408 ALOGVV("checkDeviceMuteStrategies() %s strategy %d (curDevice %04x) on output %d", 4409 mute ? "muting" : "unmuting", i, curDevice, curOutput); 4410 setStrategyMute((routing_strategy)i, mute, curOutput, mute ? 0 : delayMs); 4411 if (desc->isStrategyActive((routing_strategy)i)) { 4412 if (mute) { 4413 // FIXME: should not need to double latency if volume could be applied 4414 // immediately by the audioflinger mixer. We must account for the delay 4415 // between now and the next time the audioflinger thread for this output 4416 // will process a buffer (which corresponds to one buffer size, 4417 // usually 1/2 or 1/4 of the latency). 4418 if (muteWaitMs < desc->latency() * 2) { 4419 muteWaitMs = desc->latency() * 2; 4420 } 4421 } 4422 } 4423 } 4424 } 4425 } 4426 4427 // temporary mute output if device selection changes to avoid volume bursts due to 4428 // different per device volumes 4429 if (outputDesc->isActive() && (device != prevDevice)) { 4430 if (muteWaitMs < outputDesc->latency() * 2) { 4431 muteWaitMs = outputDesc->latency() * 2; 4432 } 4433 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 4434 if (outputDesc->isStrategyActive((routing_strategy)i)) { 4435 setStrategyMute((routing_strategy)i, true, outputDesc->mIoHandle); 4436 // do tempMute unmute after twice the mute wait time 4437 setStrategyMute((routing_strategy)i, false, outputDesc->mIoHandle, 4438 muteWaitMs *2, device); 4439 } 4440 } 4441 } 4442 4443 // wait for the PCM output buffers to empty before proceeding with the rest of the command 4444 if (muteWaitMs > delayMs) { 4445 muteWaitMs -= delayMs; 4446 usleep(muteWaitMs * 1000); 4447 return muteWaitMs; 4448 } 4449 return 0; 4450} 4451 4452uint32_t AudioPolicyManager::setOutputDevice(audio_io_handle_t output, 4453 audio_devices_t device, 4454 bool force, 4455 int delayMs, 4456 audio_patch_handle_t *patchHandle, 4457 const char* address) 4458{ 4459 ALOGV("setOutputDevice() output %d device %04x delayMs %d", output, device, delayMs); 4460 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4461 AudioParameter param; 4462 uint32_t muteWaitMs; 4463 4464 if (outputDesc->isDuplicated()) { 4465 muteWaitMs = setOutputDevice(outputDesc->mOutput1->mIoHandle, device, force, delayMs); 4466 muteWaitMs += setOutputDevice(outputDesc->mOutput2->mIoHandle, device, force, delayMs); 4467 return muteWaitMs; 4468 } 4469 // no need to proceed if new device is not AUDIO_DEVICE_NONE and not supported by current 4470 // output profile 4471 if ((device != AUDIO_DEVICE_NONE) && 4472 ((device & outputDesc->mProfile->mSupportedDevices.types()) == 0)) { 4473 return 0; 4474 } 4475 4476 // filter devices according to output selected 4477 device = (audio_devices_t)(device & outputDesc->mProfile->mSupportedDevices.types()); 4478 4479 audio_devices_t prevDevice = outputDesc->mDevice; 4480 4481 ALOGV("setOutputDevice() prevDevice %04x", prevDevice); 4482 4483 if (device != AUDIO_DEVICE_NONE) { 4484 outputDesc->mDevice = device; 4485 } 4486 muteWaitMs = checkDeviceMuteStrategies(outputDesc, prevDevice, delayMs); 4487 4488 // Do not change the routing if: 4489 // the requested device is AUDIO_DEVICE_NONE 4490 // OR the requested device is the same as current device 4491 // AND force is not specified 4492 // AND the output is connected by a valid audio patch. 4493 // Doing this check here allows the caller to call setOutputDevice() without conditions 4494 if ((device == AUDIO_DEVICE_NONE || device == prevDevice) && !force && 4495 outputDesc->mPatchHandle != 0) { 4496 ALOGV("setOutputDevice() setting same device %04x or null device for output %d", 4497 device, output); 4498 return muteWaitMs; 4499 } 4500 4501 ALOGV("setOutputDevice() changing device"); 4502 4503 // do the routing 4504 if (device == AUDIO_DEVICE_NONE) { 4505 resetOutputDevice(output, delayMs, NULL); 4506 } else { 4507 DeviceVector deviceList = (address == NULL) ? 4508 mAvailableOutputDevices.getDevicesFromType(device) 4509 : mAvailableOutputDevices.getDevicesFromTypeAddr(device, String8(address)); 4510 if (!deviceList.isEmpty()) { 4511 struct audio_patch patch; 4512 outputDesc->toAudioPortConfig(&patch.sources[0]); 4513 patch.num_sources = 1; 4514 patch.num_sinks = 0; 4515 for (size_t i = 0; i < deviceList.size() && i < AUDIO_PATCH_PORTS_MAX; i++) { 4516 deviceList.itemAt(i)->toAudioPortConfig(&patch.sinks[i]); 4517 patch.num_sinks++; 4518 } 4519 ssize_t index; 4520 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 4521 index = mAudioPatches.indexOfKey(*patchHandle); 4522 } else { 4523 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4524 } 4525 sp< AudioPatch> patchDesc; 4526 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 4527 if (index >= 0) { 4528 patchDesc = mAudioPatches.valueAt(index); 4529 afPatchHandle = patchDesc->mAfPatchHandle; 4530 } 4531 4532 status_t status = mpClientInterface->createAudioPatch(&patch, 4533 &afPatchHandle, 4534 delayMs); 4535 ALOGV("setOutputDevice() createAudioPatch returned %d patchHandle %d" 4536 "num_sources %d num_sinks %d", 4537 status, afPatchHandle, patch.num_sources, patch.num_sinks); 4538 if (status == NO_ERROR) { 4539 if (index < 0) { 4540 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 4541 &patch, mUidCached); 4542 addAudioPatch(patchDesc->mHandle, patchDesc); 4543 } else { 4544 patchDesc->mPatch = patch; 4545 } 4546 patchDesc->mAfPatchHandle = afPatchHandle; 4547 patchDesc->mUid = mUidCached; 4548 if (patchHandle) { 4549 *patchHandle = patchDesc->mHandle; 4550 } 4551 outputDesc->mPatchHandle = patchDesc->mHandle; 4552 nextAudioPortGeneration(); 4553 mpClientInterface->onAudioPatchListUpdate(); 4554 } 4555 } 4556 4557 // inform all input as well 4558 for (size_t i = 0; i < mInputs.size(); i++) { 4559 const sp<AudioInputDescriptor> inputDescriptor = mInputs.valueAt(i); 4560 if (!isVirtualInputDevice(inputDescriptor->mDevice)) { 4561 AudioParameter inputCmd = AudioParameter(); 4562 ALOGV("%s: inform input %d of device:%d", __func__, 4563 inputDescriptor->mIoHandle, device); 4564 inputCmd.addInt(String8(AudioParameter::keyRouting),device); 4565 mpClientInterface->setParameters(inputDescriptor->mIoHandle, 4566 inputCmd.toString(), 4567 delayMs); 4568 } 4569 } 4570 } 4571 4572 // update stream volumes according to new device 4573 applyStreamVolumes(output, device, delayMs); 4574 4575 return muteWaitMs; 4576} 4577 4578status_t AudioPolicyManager::resetOutputDevice(audio_io_handle_t output, 4579 int delayMs, 4580 audio_patch_handle_t *patchHandle) 4581{ 4582 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4583 ssize_t index; 4584 if (patchHandle) { 4585 index = mAudioPatches.indexOfKey(*patchHandle); 4586 } else { 4587 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4588 } 4589 if (index < 0) { 4590 return INVALID_OPERATION; 4591 } 4592 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4593 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, delayMs); 4594 ALOGV("resetOutputDevice() releaseAudioPatch returned %d", status); 4595 outputDesc->mPatchHandle = 0; 4596 removeAudioPatch(patchDesc->mHandle); 4597 nextAudioPortGeneration(); 4598 mpClientInterface->onAudioPatchListUpdate(); 4599 return status; 4600} 4601 4602status_t AudioPolicyManager::setInputDevice(audio_io_handle_t input, 4603 audio_devices_t device, 4604 bool force, 4605 audio_patch_handle_t *patchHandle) 4606{ 4607 status_t status = NO_ERROR; 4608 4609 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4610 if ((device != AUDIO_DEVICE_NONE) && ((device != inputDesc->mDevice) || force)) { 4611 inputDesc->mDevice = device; 4612 4613 DeviceVector deviceList = mAvailableInputDevices.getDevicesFromType(device); 4614 if (!deviceList.isEmpty()) { 4615 struct audio_patch patch; 4616 inputDesc->toAudioPortConfig(&patch.sinks[0]); 4617 // AUDIO_SOURCE_HOTWORD is for internal use only: 4618 // handled as AUDIO_SOURCE_VOICE_RECOGNITION by the audio HAL 4619 if (patch.sinks[0].ext.mix.usecase.source == AUDIO_SOURCE_HOTWORD && 4620 !inputDesc->mIsSoundTrigger) { 4621 patch.sinks[0].ext.mix.usecase.source = AUDIO_SOURCE_VOICE_RECOGNITION; 4622 } 4623 patch.num_sinks = 1; 4624 //only one input device for now 4625 deviceList.itemAt(0)->toAudioPortConfig(&patch.sources[0]); 4626 patch.num_sources = 1; 4627 ssize_t index; 4628 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 4629 index = mAudioPatches.indexOfKey(*patchHandle); 4630 } else { 4631 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4632 } 4633 sp< AudioPatch> patchDesc; 4634 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 4635 if (index >= 0) { 4636 patchDesc = mAudioPatches.valueAt(index); 4637 afPatchHandle = patchDesc->mAfPatchHandle; 4638 } 4639 4640 status_t status = mpClientInterface->createAudioPatch(&patch, 4641 &afPatchHandle, 4642 0); 4643 ALOGV("setInputDevice() createAudioPatch returned %d patchHandle %d", 4644 status, afPatchHandle); 4645 if (status == NO_ERROR) { 4646 if (index < 0) { 4647 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 4648 &patch, mUidCached); 4649 addAudioPatch(patchDesc->mHandle, patchDesc); 4650 } else { 4651 patchDesc->mPatch = patch; 4652 } 4653 patchDesc->mAfPatchHandle = afPatchHandle; 4654 patchDesc->mUid = mUidCached; 4655 if (patchHandle) { 4656 *patchHandle = patchDesc->mHandle; 4657 } 4658 inputDesc->mPatchHandle = patchDesc->mHandle; 4659 nextAudioPortGeneration(); 4660 mpClientInterface->onAudioPatchListUpdate(); 4661 } 4662 } 4663 } 4664 return status; 4665} 4666 4667status_t AudioPolicyManager::resetInputDevice(audio_io_handle_t input, 4668 audio_patch_handle_t *patchHandle) 4669{ 4670 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4671 ssize_t index; 4672 if (patchHandle) { 4673 index = mAudioPatches.indexOfKey(*patchHandle); 4674 } else { 4675 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4676 } 4677 if (index < 0) { 4678 return INVALID_OPERATION; 4679 } 4680 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4681 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 4682 ALOGV("resetInputDevice() releaseAudioPatch returned %d", status); 4683 inputDesc->mPatchHandle = 0; 4684 removeAudioPatch(patchDesc->mHandle); 4685 nextAudioPortGeneration(); 4686 mpClientInterface->onAudioPatchListUpdate(); 4687 return status; 4688} 4689 4690sp<AudioPolicyManager::IOProfile> AudioPolicyManager::getInputProfile(audio_devices_t device, 4691 uint32_t& samplingRate, 4692 audio_format_t format, 4693 audio_channel_mask_t channelMask, 4694 audio_input_flags_t flags) 4695{ 4696 // Choose an input profile based on the requested capture parameters: select the first available 4697 // profile supporting all requested parameters. 4698 4699 for (size_t i = 0; i < mHwModules.size(); i++) 4700 { 4701 if (mHwModules[i]->mHandle == 0) { 4702 continue; 4703 } 4704 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 4705 { 4706 sp<IOProfile> profile = mHwModules[i]->mInputProfiles[j]; 4707 // profile->log(); 4708 if (profile->isCompatibleProfile(device, samplingRate, 4709 &samplingRate /*updatedSamplingRate*/, 4710 format, channelMask, (audio_output_flags_t) flags)) { 4711 return profile; 4712 } 4713 } 4714 } 4715 return NULL; 4716} 4717 4718audio_devices_t AudioPolicyManager::getDeviceForInputSource(audio_source_t inputSource) 4719{ 4720 uint32_t device = AUDIO_DEVICE_NONE; 4721 audio_devices_t availableDeviceTypes = mAvailableInputDevices.types() & 4722 ~AUDIO_DEVICE_BIT_IN; 4723 switch (inputSource) { 4724 case AUDIO_SOURCE_VOICE_UPLINK: 4725 if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) { 4726 device = AUDIO_DEVICE_IN_VOICE_CALL; 4727 break; 4728 } 4729 break; 4730 4731 case AUDIO_SOURCE_DEFAULT: 4732 case AUDIO_SOURCE_MIC: 4733 if (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_A2DP) { 4734 device = AUDIO_DEVICE_IN_BLUETOOTH_A2DP; 4735 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 4736 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 4737 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 4738 device = AUDIO_DEVICE_IN_USB_DEVICE; 4739 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 4740 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 4741 } 4742 break; 4743 4744 case AUDIO_SOURCE_VOICE_COMMUNICATION: 4745 // Allow only use of devices on primary input if in call and HAL does not support routing 4746 // to voice call path. 4747 if ((mPhoneState == AUDIO_MODE_IN_CALL) && 4748 (mAvailableOutputDevices.types() & AUDIO_DEVICE_OUT_TELEPHONY_TX) == 0) { 4749 availableDeviceTypes = availablePrimaryInputDevices() & ~AUDIO_DEVICE_BIT_IN; 4750 } 4751 4752 switch (mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]) { 4753 case AUDIO_POLICY_FORCE_BT_SCO: 4754 // if SCO device is requested but no SCO device is available, fall back to default case 4755 if (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) { 4756 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 4757 break; 4758 } 4759 // FALL THROUGH 4760 4761 default: // FORCE_NONE 4762 if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 4763 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 4764 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 4765 device = AUDIO_DEVICE_IN_USB_DEVICE; 4766 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 4767 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 4768 } 4769 break; 4770 4771 case AUDIO_POLICY_FORCE_SPEAKER: 4772 if (availableDeviceTypes & AUDIO_DEVICE_IN_BACK_MIC) { 4773 device = AUDIO_DEVICE_IN_BACK_MIC; 4774 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 4775 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 4776 } 4777 break; 4778 } 4779 break; 4780 4781 case AUDIO_SOURCE_VOICE_RECOGNITION: 4782 case AUDIO_SOURCE_HOTWORD: 4783 if (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO && 4784 availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) { 4785 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 4786 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 4787 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 4788 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 4789 device = AUDIO_DEVICE_IN_USB_DEVICE; 4790 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 4791 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 4792 } 4793 break; 4794 case AUDIO_SOURCE_CAMCORDER: 4795 if (availableDeviceTypes & AUDIO_DEVICE_IN_BACK_MIC) { 4796 device = AUDIO_DEVICE_IN_BACK_MIC; 4797 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 4798 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 4799 } 4800 break; 4801 case AUDIO_SOURCE_VOICE_DOWNLINK: 4802 case AUDIO_SOURCE_VOICE_CALL: 4803 if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) { 4804 device = AUDIO_DEVICE_IN_VOICE_CALL; 4805 } 4806 break; 4807 case AUDIO_SOURCE_REMOTE_SUBMIX: 4808 if (availableDeviceTypes & AUDIO_DEVICE_IN_REMOTE_SUBMIX) { 4809 device = AUDIO_DEVICE_IN_REMOTE_SUBMIX; 4810 } 4811 break; 4812 case AUDIO_SOURCE_FM_TUNER: 4813 if (availableDeviceTypes & AUDIO_DEVICE_IN_FM_TUNER) { 4814 device = AUDIO_DEVICE_IN_FM_TUNER; 4815 } 4816 break; 4817 default: 4818 ALOGW("getDeviceForInputSource() invalid input source %d", inputSource); 4819 break; 4820 } 4821 ALOGV("getDeviceForInputSource()input source %d, device %08x", inputSource, device); 4822 return device; 4823} 4824 4825bool AudioPolicyManager::isVirtualInputDevice(audio_devices_t device) 4826{ 4827 if ((device & AUDIO_DEVICE_BIT_IN) != 0) { 4828 device &= ~AUDIO_DEVICE_BIT_IN; 4829 if ((popcount(device) == 1) && ((device & ~APM_AUDIO_IN_DEVICE_VIRTUAL_ALL) == 0)) 4830 return true; 4831 } 4832 return false; 4833} 4834 4835bool AudioPolicyManager::deviceDistinguishesOnAddress(audio_devices_t device) { 4836 return ((device & APM_AUDIO_DEVICE_MATCH_ADDRESS_ALL) != 0); 4837} 4838 4839audio_io_handle_t AudioPolicyManager::getActiveInput(bool ignoreVirtualInputs) 4840{ 4841 for (size_t i = 0; i < mInputs.size(); i++) { 4842 const sp<AudioInputDescriptor> input_descriptor = mInputs.valueAt(i); 4843 if ((input_descriptor->mRefCount > 0) 4844 && (!ignoreVirtualInputs || !isVirtualInputDevice(input_descriptor->mDevice))) { 4845 return mInputs.keyAt(i); 4846 } 4847 } 4848 return 0; 4849} 4850 4851uint32_t AudioPolicyManager::activeInputsCount() const 4852{ 4853 uint32_t count = 0; 4854 for (size_t i = 0; i < mInputs.size(); i++) { 4855 const sp<AudioInputDescriptor> desc = mInputs.valueAt(i); 4856 if (desc->mRefCount > 0) { 4857 return count++; 4858 } 4859 } 4860 return count; 4861} 4862 4863 4864audio_devices_t AudioPolicyManager::getDeviceForVolume(audio_devices_t device) 4865{ 4866 if (device == AUDIO_DEVICE_NONE) { 4867 // this happens when forcing a route update and no track is active on an output. 4868 // In this case the returned category is not important. 4869 device = AUDIO_DEVICE_OUT_SPEAKER; 4870 } else if (popcount(device) > 1) { 4871 // Multiple device selection is either: 4872 // - speaker + one other device: give priority to speaker in this case. 4873 // - one A2DP device + another device: happens with duplicated output. In this case 4874 // retain the device on the A2DP output as the other must not correspond to an active 4875 // selection if not the speaker. 4876 // - HDMI-CEC system audio mode only output: give priority to available item in order. 4877 if (device & AUDIO_DEVICE_OUT_SPEAKER) { 4878 device = AUDIO_DEVICE_OUT_SPEAKER; 4879 } else if (device & AUDIO_DEVICE_OUT_HDMI_ARC) { 4880 device = AUDIO_DEVICE_OUT_HDMI_ARC; 4881 } else if (device & AUDIO_DEVICE_OUT_AUX_LINE) { 4882 device = AUDIO_DEVICE_OUT_AUX_LINE; 4883 } else if (device & AUDIO_DEVICE_OUT_SPDIF) { 4884 device = AUDIO_DEVICE_OUT_SPDIF; 4885 } else { 4886 device = (audio_devices_t)(device & AUDIO_DEVICE_OUT_ALL_A2DP); 4887 } 4888 } 4889 4890 /*SPEAKER_SAFE is an alias of SPEAKER for purposes of volume control*/ 4891 if (device == AUDIO_DEVICE_OUT_SPEAKER_SAFE) 4892 device = AUDIO_DEVICE_OUT_SPEAKER; 4893 4894 ALOGW_IF(popcount(device) != 1, 4895 "getDeviceForVolume() invalid device combination: %08x", 4896 device); 4897 4898 return device; 4899} 4900 4901AudioPolicyManager::device_category AudioPolicyManager::getDeviceCategory(audio_devices_t device) 4902{ 4903 switch(getDeviceForVolume(device)) { 4904 case AUDIO_DEVICE_OUT_EARPIECE: 4905 return DEVICE_CATEGORY_EARPIECE; 4906 case AUDIO_DEVICE_OUT_WIRED_HEADSET: 4907 case AUDIO_DEVICE_OUT_WIRED_HEADPHONE: 4908 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO: 4909 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET: 4910 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP: 4911 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES: 4912 return DEVICE_CATEGORY_HEADSET; 4913 case AUDIO_DEVICE_OUT_LINE: 4914 case AUDIO_DEVICE_OUT_AUX_DIGITAL: 4915 /*USB? Remote submix?*/ 4916 return DEVICE_CATEGORY_EXT_MEDIA; 4917 case AUDIO_DEVICE_OUT_SPEAKER: 4918 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT: 4919 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER: 4920 case AUDIO_DEVICE_OUT_USB_ACCESSORY: 4921 case AUDIO_DEVICE_OUT_USB_DEVICE: 4922 case AUDIO_DEVICE_OUT_REMOTE_SUBMIX: 4923 default: 4924 return DEVICE_CATEGORY_SPEAKER; 4925 } 4926} 4927 4928float AudioPolicyManager::volIndexToAmpl(audio_devices_t device, const StreamDescriptor& streamDesc, 4929 int indexInUi) 4930{ 4931 device_category deviceCategory = getDeviceCategory(device); 4932 const VolumeCurvePoint *curve = streamDesc.mVolumeCurve[deviceCategory]; 4933 4934 // the volume index in the UI is relative to the min and max volume indices for this stream type 4935 int nbSteps = 1 + curve[VOLMAX].mIndex - 4936 curve[VOLMIN].mIndex; 4937 int volIdx = (nbSteps * (indexInUi - streamDesc.mIndexMin)) / 4938 (streamDesc.mIndexMax - streamDesc.mIndexMin); 4939 4940 // find what part of the curve this index volume belongs to, or if it's out of bounds 4941 int segment = 0; 4942 if (volIdx < curve[VOLMIN].mIndex) { // out of bounds 4943 return 0.0f; 4944 } else if (volIdx < curve[VOLKNEE1].mIndex) { 4945 segment = 0; 4946 } else if (volIdx < curve[VOLKNEE2].mIndex) { 4947 segment = 1; 4948 } else if (volIdx <= curve[VOLMAX].mIndex) { 4949 segment = 2; 4950 } else { // out of bounds 4951 return 1.0f; 4952 } 4953 4954 // linear interpolation in the attenuation table in dB 4955 float decibels = curve[segment].mDBAttenuation + 4956 ((float)(volIdx - curve[segment].mIndex)) * 4957 ( (curve[segment+1].mDBAttenuation - 4958 curve[segment].mDBAttenuation) / 4959 ((float)(curve[segment+1].mIndex - 4960 curve[segment].mIndex)) ); 4961 4962 float amplification = exp( decibels * 0.115129f); // exp( dB * ln(10) / 20 ) 4963 4964 ALOGVV("VOLUME vol index=[%d %d %d], dB=[%.1f %.1f %.1f] ampl=%.5f", 4965 curve[segment].mIndex, volIdx, 4966 curve[segment+1].mIndex, 4967 curve[segment].mDBAttenuation, 4968 decibels, 4969 curve[segment+1].mDBAttenuation, 4970 amplification); 4971 4972 return amplification; 4973} 4974 4975const AudioPolicyManager::VolumeCurvePoint 4976 AudioPolicyManager::sDefaultVolumeCurve[AudioPolicyManager::VOLCNT] = { 4977 {1, -49.5f}, {33, -33.5f}, {66, -17.0f}, {100, 0.0f} 4978}; 4979 4980const AudioPolicyManager::VolumeCurvePoint 4981 AudioPolicyManager::sDefaultMediaVolumeCurve[AudioPolicyManager::VOLCNT] = { 4982 {1, -58.0f}, {20, -40.0f}, {60, -17.0f}, {100, 0.0f} 4983}; 4984 4985const AudioPolicyManager::VolumeCurvePoint 4986 AudioPolicyManager::sExtMediaSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 4987 {1, -58.0f}, {20, -40.0f}, {60, -21.0f}, {100, -10.0f} 4988}; 4989 4990const AudioPolicyManager::VolumeCurvePoint 4991 AudioPolicyManager::sSpeakerMediaVolumeCurve[AudioPolicyManager::VOLCNT] = { 4992 {1, -56.0f}, {20, -34.0f}, {60, -11.0f}, {100, 0.0f} 4993}; 4994 4995const AudioPolicyManager::VolumeCurvePoint 4996 AudioPolicyManager::sSpeakerMediaVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 4997 {1, -55.0f}, {20, -43.0f}, {86, -12.0f}, {100, 0.0f} 4998}; 4999 5000const AudioPolicyManager::VolumeCurvePoint 5001 AudioPolicyManager::sSpeakerSonificationVolumeCurve[AudioPolicyManager::VOLCNT] = { 5002 {1, -29.7f}, {33, -20.1f}, {66, -10.2f}, {100, 0.0f} 5003}; 5004 5005const AudioPolicyManager::VolumeCurvePoint 5006 AudioPolicyManager::sSpeakerSonificationVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 5007 {1, -35.7f}, {33, -26.1f}, {66, -13.2f}, {100, 0.0f} 5008}; 5009 5010// AUDIO_STREAM_SYSTEM, AUDIO_STREAM_ENFORCED_AUDIBLE and AUDIO_STREAM_DTMF volume tracks 5011// AUDIO_STREAM_RING on phones and AUDIO_STREAM_MUSIC on tablets. 5012// AUDIO_STREAM_DTMF tracks AUDIO_STREAM_VOICE_CALL while in call (See AudioService.java). 5013// The range is constrained between -24dB and -6dB over speaker and -30dB and -18dB over headset. 5014 5015const AudioPolicyManager::VolumeCurvePoint 5016 AudioPolicyManager::sDefaultSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 5017 {1, -24.0f}, {33, -18.0f}, {66, -12.0f}, {100, -6.0f} 5018}; 5019 5020const AudioPolicyManager::VolumeCurvePoint 5021 AudioPolicyManager::sDefaultSystemVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 5022 {1, -34.0f}, {33, -24.0f}, {66, -15.0f}, {100, -6.0f} 5023}; 5024 5025const AudioPolicyManager::VolumeCurvePoint 5026 AudioPolicyManager::sHeadsetSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 5027 {1, -30.0f}, {33, -26.0f}, {66, -22.0f}, {100, -18.0f} 5028}; 5029 5030const AudioPolicyManager::VolumeCurvePoint 5031 AudioPolicyManager::sDefaultVoiceVolumeCurve[AudioPolicyManager::VOLCNT] = { 5032 {0, -42.0f}, {33, -28.0f}, {66, -14.0f}, {100, 0.0f} 5033}; 5034 5035const AudioPolicyManager::VolumeCurvePoint 5036 AudioPolicyManager::sSpeakerVoiceVolumeCurve[AudioPolicyManager::VOLCNT] = { 5037 {0, -24.0f}, {33, -16.0f}, {66, -8.0f}, {100, 0.0f} 5038}; 5039 5040const AudioPolicyManager::VolumeCurvePoint 5041 AudioPolicyManager::sLinearVolumeCurve[AudioPolicyManager::VOLCNT] = { 5042 {0, -96.0f}, {33, -68.0f}, {66, -34.0f}, {100, 0.0f} 5043}; 5044 5045const AudioPolicyManager::VolumeCurvePoint 5046 AudioPolicyManager::sSilentVolumeCurve[AudioPolicyManager::VOLCNT] = { 5047 {0, -96.0f}, {1, -96.0f}, {2, -96.0f}, {100, -96.0f} 5048}; 5049 5050const AudioPolicyManager::VolumeCurvePoint 5051 *AudioPolicyManager::sVolumeProfiles[AUDIO_STREAM_CNT] 5052 [AudioPolicyManager::DEVICE_CATEGORY_CNT] = { 5053 { // AUDIO_STREAM_VOICE_CALL 5054 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 5055 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5056 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5057 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5058 }, 5059 { // AUDIO_STREAM_SYSTEM 5060 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 5061 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5062 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5063 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5064 }, 5065 { // AUDIO_STREAM_RING 5066 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 5067 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5068 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5069 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5070 }, 5071 { // AUDIO_STREAM_MUSIC 5072 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 5073 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5074 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5075 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5076 }, 5077 { // AUDIO_STREAM_ALARM 5078 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 5079 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5080 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5081 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5082 }, 5083 { // AUDIO_STREAM_NOTIFICATION 5084 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 5085 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5086 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5087 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5088 }, 5089 { // AUDIO_STREAM_BLUETOOTH_SCO 5090 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 5091 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5092 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5093 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5094 }, 5095 { // AUDIO_STREAM_ENFORCED_AUDIBLE 5096 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 5097 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5098 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5099 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5100 }, 5101 { // AUDIO_STREAM_DTMF 5102 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 5103 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5104 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5105 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5106 }, 5107 { // AUDIO_STREAM_TTS 5108 // "Transmitted Through Speaker": always silent except on DEVICE_CATEGORY_SPEAKER 5109 sSilentVolumeCurve, // DEVICE_CATEGORY_HEADSET 5110 sLinearVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5111 sSilentVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5112 sSilentVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5113 }, 5114}; 5115 5116void AudioPolicyManager::initializeVolumeCurves() 5117{ 5118 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 5119 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 5120 mStreams[i].mVolumeCurve[j] = 5121 sVolumeProfiles[i][j]; 5122 } 5123 } 5124 5125 // Check availability of DRC on speaker path: if available, override some of the speaker curves 5126 if (mSpeakerDrcEnabled) { 5127 mStreams[AUDIO_STREAM_SYSTEM].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5128 sDefaultSystemVolumeCurveDrc; 5129 mStreams[AUDIO_STREAM_RING].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5130 sSpeakerSonificationVolumeCurveDrc; 5131 mStreams[AUDIO_STREAM_ALARM].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5132 sSpeakerSonificationVolumeCurveDrc; 5133 mStreams[AUDIO_STREAM_NOTIFICATION].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5134 sSpeakerSonificationVolumeCurveDrc; 5135 mStreams[AUDIO_STREAM_MUSIC].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5136 sSpeakerMediaVolumeCurveDrc; 5137 } 5138} 5139 5140float AudioPolicyManager::computeVolume(audio_stream_type_t stream, 5141 int index, 5142 audio_io_handle_t output, 5143 audio_devices_t device) 5144{ 5145 float volume = 1.0; 5146 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 5147 StreamDescriptor &streamDesc = mStreams[stream]; 5148 5149 if (device == AUDIO_DEVICE_NONE) { 5150 device = outputDesc->device(); 5151 } 5152 5153 volume = volIndexToAmpl(device, streamDesc, index); 5154 5155 // if a headset is connected, apply the following rules to ring tones and notifications 5156 // to avoid sound level bursts in user's ears: 5157 // - always attenuate ring tones and notifications volume by 6dB 5158 // - if music is playing, always limit the volume to current music volume, 5159 // with a minimum threshold at -36dB so that notification is always perceived. 5160 const routing_strategy stream_strategy = getStrategy(stream); 5161 if ((device & (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP | 5162 AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES | 5163 AUDIO_DEVICE_OUT_WIRED_HEADSET | 5164 AUDIO_DEVICE_OUT_WIRED_HEADPHONE)) && 5165 ((stream_strategy == STRATEGY_SONIFICATION) 5166 || (stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL) 5167 || (stream == AUDIO_STREAM_SYSTEM) 5168 || ((stream_strategy == STRATEGY_ENFORCED_AUDIBLE) && 5169 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_NONE))) && 5170 streamDesc.mCanBeMuted) { 5171 volume *= SONIFICATION_HEADSET_VOLUME_FACTOR; 5172 // when the phone is ringing we must consider that music could have been paused just before 5173 // by the music application and behave as if music was active if the last music track was 5174 // just stopped 5175 if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY) || 5176 mLimitRingtoneVolume) { 5177 audio_devices_t musicDevice = getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/); 5178 float musicVol = computeVolume(AUDIO_STREAM_MUSIC, 5179 mStreams[AUDIO_STREAM_MUSIC].getVolumeIndex(musicDevice), 5180 output, 5181 musicDevice); 5182 float minVol = (musicVol > SONIFICATION_HEADSET_VOLUME_MIN) ? 5183 musicVol : SONIFICATION_HEADSET_VOLUME_MIN; 5184 if (volume > minVol) { 5185 volume = minVol; 5186 ALOGV("computeVolume limiting volume to %f musicVol %f", minVol, musicVol); 5187 } 5188 } 5189 } 5190 5191 return volume; 5192} 5193 5194status_t AudioPolicyManager::checkAndSetVolume(audio_stream_type_t stream, 5195 int index, 5196 audio_io_handle_t output, 5197 audio_devices_t device, 5198 int delayMs, 5199 bool force) 5200{ 5201 5202 // do not change actual stream volume if the stream is muted 5203 if (mOutputs.valueFor(output)->mMuteCount[stream] != 0) { 5204 ALOGVV("checkAndSetVolume() stream %d muted count %d", 5205 stream, mOutputs.valueFor(output)->mMuteCount[stream]); 5206 return NO_ERROR; 5207 } 5208 5209 // do not change in call volume if bluetooth is connected and vice versa 5210 if ((stream == AUDIO_STREAM_VOICE_CALL && 5211 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO) || 5212 (stream == AUDIO_STREAM_BLUETOOTH_SCO && 5213 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] != AUDIO_POLICY_FORCE_BT_SCO)) { 5214 ALOGV("checkAndSetVolume() cannot set stream %d volume with force use = %d for comm", 5215 stream, mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]); 5216 return INVALID_OPERATION; 5217 } 5218 5219 float volume = computeVolume(stream, index, output, device); 5220 // We actually change the volume if: 5221 // - the float value returned by computeVolume() changed 5222 // - the force flag is set 5223 if (volume != mOutputs.valueFor(output)->mCurVolume[stream] || 5224 force) { 5225 mOutputs.valueFor(output)->mCurVolume[stream] = volume; 5226 ALOGVV("checkAndSetVolume() for output %d stream %d, volume %f, delay %d", output, stream, volume, delayMs); 5227 // Force VOICE_CALL to track BLUETOOTH_SCO stream volume when bluetooth audio is 5228 // enabled 5229 if (stream == AUDIO_STREAM_BLUETOOTH_SCO) { 5230 mpClientInterface->setStreamVolume(AUDIO_STREAM_VOICE_CALL, volume, output, delayMs); 5231 } 5232 mpClientInterface->setStreamVolume(stream, volume, output, delayMs); 5233 } 5234 5235 if (stream == AUDIO_STREAM_VOICE_CALL || 5236 stream == AUDIO_STREAM_BLUETOOTH_SCO) { 5237 float voiceVolume; 5238 // Force voice volume to max for bluetooth SCO as volume is managed by the headset 5239 if (stream == AUDIO_STREAM_VOICE_CALL) { 5240 voiceVolume = (float)index/(float)mStreams[stream].mIndexMax; 5241 } else { 5242 voiceVolume = 1.0; 5243 } 5244 5245 if (voiceVolume != mLastVoiceVolume && output == mPrimaryOutput) { 5246 mpClientInterface->setVoiceVolume(voiceVolume, delayMs); 5247 mLastVoiceVolume = voiceVolume; 5248 } 5249 } 5250 5251 return NO_ERROR; 5252} 5253 5254void AudioPolicyManager::applyStreamVolumes(audio_io_handle_t output, 5255 audio_devices_t device, 5256 int delayMs, 5257 bool force) 5258{ 5259 ALOGVV("applyStreamVolumes() for output %d and device %x", output, device); 5260 5261 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 5262 checkAndSetVolume((audio_stream_type_t)stream, 5263 mStreams[stream].getVolumeIndex(device), 5264 output, 5265 device, 5266 delayMs, 5267 force); 5268 } 5269} 5270 5271void AudioPolicyManager::setStrategyMute(routing_strategy strategy, 5272 bool on, 5273 audio_io_handle_t output, 5274 int delayMs, 5275 audio_devices_t device) 5276{ 5277 ALOGVV("setStrategyMute() strategy %d, mute %d, output %d", strategy, on, output); 5278 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 5279 if (getStrategy((audio_stream_type_t)stream) == strategy) { 5280 setStreamMute((audio_stream_type_t)stream, on, output, delayMs, device); 5281 } 5282 } 5283} 5284 5285void AudioPolicyManager::setStreamMute(audio_stream_type_t stream, 5286 bool on, 5287 audio_io_handle_t output, 5288 int delayMs, 5289 audio_devices_t device) 5290{ 5291 StreamDescriptor &streamDesc = mStreams[stream]; 5292 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 5293 if (device == AUDIO_DEVICE_NONE) { 5294 device = outputDesc->device(); 5295 } 5296 5297 ALOGVV("setStreamMute() stream %d, mute %d, output %d, mMuteCount %d device %04x", 5298 stream, on, output, outputDesc->mMuteCount[stream], device); 5299 5300 if (on) { 5301 if (outputDesc->mMuteCount[stream] == 0) { 5302 if (streamDesc.mCanBeMuted && 5303 ((stream != AUDIO_STREAM_ENFORCED_AUDIBLE) || 5304 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_NONE))) { 5305 checkAndSetVolume(stream, 0, output, device, delayMs); 5306 } 5307 } 5308 // increment mMuteCount after calling checkAndSetVolume() so that volume change is not ignored 5309 outputDesc->mMuteCount[stream]++; 5310 } else { 5311 if (outputDesc->mMuteCount[stream] == 0) { 5312 ALOGV("setStreamMute() unmuting non muted stream!"); 5313 return; 5314 } 5315 if (--outputDesc->mMuteCount[stream] == 0) { 5316 checkAndSetVolume(stream, 5317 streamDesc.getVolumeIndex(device), 5318 output, 5319 device, 5320 delayMs); 5321 } 5322 } 5323} 5324 5325void AudioPolicyManager::handleIncallSonification(audio_stream_type_t stream, 5326 bool starting, bool stateChange) 5327{ 5328 // if the stream pertains to sonification strategy and we are in call we must 5329 // mute the stream if it is low visibility. If it is high visibility, we must play a tone 5330 // in the device used for phone strategy and play the tone if the selected device does not 5331 // interfere with the device used for phone strategy 5332 // if stateChange is true, we are called from setPhoneState() and we must mute or unmute as 5333 // many times as there are active tracks on the output 5334 const routing_strategy stream_strategy = getStrategy(stream); 5335 if ((stream_strategy == STRATEGY_SONIFICATION) || 5336 ((stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL))) { 5337 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 5338 ALOGV("handleIncallSonification() stream %d starting %d device %x stateChange %d", 5339 stream, starting, outputDesc->mDevice, stateChange); 5340 if (outputDesc->mRefCount[stream]) { 5341 int muteCount = 1; 5342 if (stateChange) { 5343 muteCount = outputDesc->mRefCount[stream]; 5344 } 5345 if (audio_is_low_visibility(stream)) { 5346 ALOGV("handleIncallSonification() low visibility, muteCount %d", muteCount); 5347 for (int i = 0; i < muteCount; i++) { 5348 setStreamMute(stream, starting, mPrimaryOutput); 5349 } 5350 } else { 5351 ALOGV("handleIncallSonification() high visibility"); 5352 if (outputDesc->device() & 5353 getDeviceForStrategy(STRATEGY_PHONE, true /*fromCache*/)) { 5354 ALOGV("handleIncallSonification() high visibility muted, muteCount %d", muteCount); 5355 for (int i = 0; i < muteCount; i++) { 5356 setStreamMute(stream, starting, mPrimaryOutput); 5357 } 5358 } 5359 if (starting) { 5360 mpClientInterface->startTone(AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION, 5361 AUDIO_STREAM_VOICE_CALL); 5362 } else { 5363 mpClientInterface->stopTone(); 5364 } 5365 } 5366 } 5367 } 5368} 5369 5370bool AudioPolicyManager::isInCall() 5371{ 5372 return isStateInCall(mPhoneState); 5373} 5374 5375bool AudioPolicyManager::isStateInCall(int state) { 5376 return ((state == AUDIO_MODE_IN_CALL) || 5377 (state == AUDIO_MODE_IN_COMMUNICATION)); 5378} 5379 5380uint32_t AudioPolicyManager::getMaxEffectsCpuLoad() 5381{ 5382 return MAX_EFFECTS_CPU_LOAD; 5383} 5384 5385uint32_t AudioPolicyManager::getMaxEffectsMemory() 5386{ 5387 return MAX_EFFECTS_MEMORY; 5388} 5389 5390 5391// --- AudioOutputDescriptor class implementation 5392 5393AudioPolicyManager::AudioOutputDescriptor::AudioOutputDescriptor( 5394 const sp<IOProfile>& profile) 5395 : mId(0), mIoHandle(0), mLatency(0), 5396 mFlags((audio_output_flags_t)0), mDevice(AUDIO_DEVICE_NONE), mPatchHandle(0), 5397 mOutput1(0), mOutput2(0), mProfile(profile), mDirectOpenCount(0) 5398{ 5399 // clear usage count for all stream types 5400 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 5401 mRefCount[i] = 0; 5402 mCurVolume[i] = -1.0; 5403 mMuteCount[i] = 0; 5404 mStopTime[i] = 0; 5405 } 5406 for (int i = 0; i < NUM_STRATEGIES; i++) { 5407 mStrategyMutedByDevice[i] = false; 5408 } 5409 if (profile != NULL) { 5410 mFlags = (audio_output_flags_t)profile->mFlags; 5411 mSamplingRate = profile->pickSamplingRate(); 5412 mFormat = profile->pickFormat(); 5413 mChannelMask = profile->pickChannelMask(); 5414 if (profile->mGains.size() > 0) { 5415 profile->mGains[0]->getDefaultConfig(&mGain); 5416 } 5417 } 5418} 5419 5420audio_devices_t AudioPolicyManager::AudioOutputDescriptor::device() const 5421{ 5422 if (isDuplicated()) { 5423 return (audio_devices_t)(mOutput1->mDevice | mOutput2->mDevice); 5424 } else { 5425 return mDevice; 5426 } 5427} 5428 5429uint32_t AudioPolicyManager::AudioOutputDescriptor::latency() 5430{ 5431 if (isDuplicated()) { 5432 return (mOutput1->mLatency > mOutput2->mLatency) ? mOutput1->mLatency : mOutput2->mLatency; 5433 } else { 5434 return mLatency; 5435 } 5436} 5437 5438bool AudioPolicyManager::AudioOutputDescriptor::sharesHwModuleWith( 5439 const sp<AudioOutputDescriptor> outputDesc) 5440{ 5441 if (isDuplicated()) { 5442 return mOutput1->sharesHwModuleWith(outputDesc) || mOutput2->sharesHwModuleWith(outputDesc); 5443 } else if (outputDesc->isDuplicated()){ 5444 return sharesHwModuleWith(outputDesc->mOutput1) || sharesHwModuleWith(outputDesc->mOutput2); 5445 } else { 5446 return (mProfile->mModule == outputDesc->mProfile->mModule); 5447 } 5448} 5449 5450void AudioPolicyManager::AudioOutputDescriptor::changeRefCount(audio_stream_type_t stream, 5451 int delta) 5452{ 5453 // forward usage count change to attached outputs 5454 if (isDuplicated()) { 5455 mOutput1->changeRefCount(stream, delta); 5456 mOutput2->changeRefCount(stream, delta); 5457 } 5458 if ((delta + (int)mRefCount[stream]) < 0) { 5459 ALOGW("changeRefCount() invalid delta %d for stream %d, refCount %d", 5460 delta, stream, mRefCount[stream]); 5461 mRefCount[stream] = 0; 5462 return; 5463 } 5464 mRefCount[stream] += delta; 5465 ALOGV("changeRefCount() stream %d, count %d", stream, mRefCount[stream]); 5466} 5467 5468audio_devices_t AudioPolicyManager::AudioOutputDescriptor::supportedDevices() 5469{ 5470 if (isDuplicated()) { 5471 return (audio_devices_t)(mOutput1->supportedDevices() | mOutput2->supportedDevices()); 5472 } else { 5473 return mProfile->mSupportedDevices.types() ; 5474 } 5475} 5476 5477bool AudioPolicyManager::AudioOutputDescriptor::isActive(uint32_t inPastMs) const 5478{ 5479 return isStrategyActive(NUM_STRATEGIES, inPastMs); 5480} 5481 5482bool AudioPolicyManager::AudioOutputDescriptor::isStrategyActive(routing_strategy strategy, 5483 uint32_t inPastMs, 5484 nsecs_t sysTime) const 5485{ 5486 if ((sysTime == 0) && (inPastMs != 0)) { 5487 sysTime = systemTime(); 5488 } 5489 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 5490 if (((getStrategy((audio_stream_type_t)i) == strategy) || 5491 (NUM_STRATEGIES == strategy)) && 5492 isStreamActive((audio_stream_type_t)i, inPastMs, sysTime)) { 5493 return true; 5494 } 5495 } 5496 return false; 5497} 5498 5499bool AudioPolicyManager::AudioOutputDescriptor::isStreamActive(audio_stream_type_t stream, 5500 uint32_t inPastMs, 5501 nsecs_t sysTime) const 5502{ 5503 if (mRefCount[stream] != 0) { 5504 return true; 5505 } 5506 if (inPastMs == 0) { 5507 return false; 5508 } 5509 if (sysTime == 0) { 5510 sysTime = systemTime(); 5511 } 5512 if (ns2ms(sysTime - mStopTime[stream]) < inPastMs) { 5513 return true; 5514 } 5515 return false; 5516} 5517 5518void AudioPolicyManager::AudioOutputDescriptor::toAudioPortConfig( 5519 struct audio_port_config *dstConfig, 5520 const struct audio_port_config *srcConfig) const 5521{ 5522 ALOG_ASSERT(!isDuplicated(), "toAudioPortConfig() called on duplicated output %d", mIoHandle); 5523 5524 dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK| 5525 AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN; 5526 if (srcConfig != NULL) { 5527 dstConfig->config_mask |= srcConfig->config_mask; 5528 } 5529 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 5530 5531 dstConfig->id = mId; 5532 dstConfig->role = AUDIO_PORT_ROLE_SOURCE; 5533 dstConfig->type = AUDIO_PORT_TYPE_MIX; 5534 dstConfig->ext.mix.hw_module = mProfile->mModule->mHandle; 5535 dstConfig->ext.mix.handle = mIoHandle; 5536 dstConfig->ext.mix.usecase.stream = AUDIO_STREAM_DEFAULT; 5537} 5538 5539void AudioPolicyManager::AudioOutputDescriptor::toAudioPort( 5540 struct audio_port *port) const 5541{ 5542 ALOG_ASSERT(!isDuplicated(), "toAudioPort() called on duplicated output %d", mIoHandle); 5543 mProfile->toAudioPort(port); 5544 port->id = mId; 5545 toAudioPortConfig(&port->active_config); 5546 port->ext.mix.hw_module = mProfile->mModule->mHandle; 5547 port->ext.mix.handle = mIoHandle; 5548 port->ext.mix.latency_class = 5549 mFlags & AUDIO_OUTPUT_FLAG_FAST ? AUDIO_LATENCY_LOW : AUDIO_LATENCY_NORMAL; 5550} 5551 5552status_t AudioPolicyManager::AudioOutputDescriptor::dump(int fd) 5553{ 5554 const size_t SIZE = 256; 5555 char buffer[SIZE]; 5556 String8 result; 5557 5558 snprintf(buffer, SIZE, " ID: %d\n", mId); 5559 result.append(buffer); 5560 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 5561 result.append(buffer); 5562 snprintf(buffer, SIZE, " Format: %08x\n", mFormat); 5563 result.append(buffer); 5564 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 5565 result.append(buffer); 5566 snprintf(buffer, SIZE, " Latency: %d\n", mLatency); 5567 result.append(buffer); 5568 snprintf(buffer, SIZE, " Flags %08x\n", mFlags); 5569 result.append(buffer); 5570 snprintf(buffer, SIZE, " Devices %08x\n", device()); 5571 result.append(buffer); 5572 snprintf(buffer, SIZE, " Stream volume refCount muteCount\n"); 5573 result.append(buffer); 5574 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 5575 snprintf(buffer, SIZE, " %02d %.03f %02d %02d\n", 5576 i, mCurVolume[i], mRefCount[i], mMuteCount[i]); 5577 result.append(buffer); 5578 } 5579 write(fd, result.string(), result.size()); 5580 5581 return NO_ERROR; 5582} 5583 5584// --- AudioInputDescriptor class implementation 5585 5586AudioPolicyManager::AudioInputDescriptor::AudioInputDescriptor(const sp<IOProfile>& profile) 5587 : mId(0), mIoHandle(0), 5588 mDevice(AUDIO_DEVICE_NONE), mPatchHandle(0), mRefCount(0), 5589 mInputSource(AUDIO_SOURCE_DEFAULT), mProfile(profile), mIsSoundTrigger(false) 5590{ 5591 if (profile != NULL) { 5592 mSamplingRate = profile->pickSamplingRate(); 5593 mFormat = profile->pickFormat(); 5594 mChannelMask = profile->pickChannelMask(); 5595 if (profile->mGains.size() > 0) { 5596 profile->mGains[0]->getDefaultConfig(&mGain); 5597 } 5598 } 5599} 5600 5601void AudioPolicyManager::AudioInputDescriptor::toAudioPortConfig( 5602 struct audio_port_config *dstConfig, 5603 const struct audio_port_config *srcConfig) const 5604{ 5605 ALOG_ASSERT(mProfile != 0, 5606 "toAudioPortConfig() called on input with null profile %d", mIoHandle); 5607 dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK| 5608 AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN; 5609 if (srcConfig != NULL) { 5610 dstConfig->config_mask |= srcConfig->config_mask; 5611 } 5612 5613 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 5614 5615 dstConfig->id = mId; 5616 dstConfig->role = AUDIO_PORT_ROLE_SINK; 5617 dstConfig->type = AUDIO_PORT_TYPE_MIX; 5618 dstConfig->ext.mix.hw_module = mProfile->mModule->mHandle; 5619 dstConfig->ext.mix.handle = mIoHandle; 5620 dstConfig->ext.mix.usecase.source = mInputSource; 5621} 5622 5623void AudioPolicyManager::AudioInputDescriptor::toAudioPort( 5624 struct audio_port *port) const 5625{ 5626 ALOG_ASSERT(mProfile != 0, "toAudioPort() called on input with null profile %d", mIoHandle); 5627 5628 mProfile->toAudioPort(port); 5629 port->id = mId; 5630 toAudioPortConfig(&port->active_config); 5631 port->ext.mix.hw_module = mProfile->mModule->mHandle; 5632 port->ext.mix.handle = mIoHandle; 5633 port->ext.mix.latency_class = AUDIO_LATENCY_NORMAL; 5634} 5635 5636status_t AudioPolicyManager::AudioInputDescriptor::dump(int fd) 5637{ 5638 const size_t SIZE = 256; 5639 char buffer[SIZE]; 5640 String8 result; 5641 5642 snprintf(buffer, SIZE, " ID: %d\n", mId); 5643 result.append(buffer); 5644 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 5645 result.append(buffer); 5646 snprintf(buffer, SIZE, " Format: %d\n", mFormat); 5647 result.append(buffer); 5648 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 5649 result.append(buffer); 5650 snprintf(buffer, SIZE, " Devices %08x\n", mDevice); 5651 result.append(buffer); 5652 snprintf(buffer, SIZE, " Ref Count %d\n", mRefCount); 5653 result.append(buffer); 5654 snprintf(buffer, SIZE, " Open Ref Count %d\n", mOpenRefCount); 5655 result.append(buffer); 5656 5657 write(fd, result.string(), result.size()); 5658 5659 return NO_ERROR; 5660} 5661 5662// --- StreamDescriptor class implementation 5663 5664AudioPolicyManager::StreamDescriptor::StreamDescriptor() 5665 : mIndexMin(0), mIndexMax(1), mCanBeMuted(true) 5666{ 5667 mIndexCur.add(AUDIO_DEVICE_OUT_DEFAULT, 0); 5668} 5669 5670int AudioPolicyManager::StreamDescriptor::getVolumeIndex(audio_devices_t device) 5671{ 5672 device = AudioPolicyManager::getDeviceForVolume(device); 5673 // there is always a valid entry for AUDIO_DEVICE_OUT_DEFAULT 5674 if (mIndexCur.indexOfKey(device) < 0) { 5675 device = AUDIO_DEVICE_OUT_DEFAULT; 5676 } 5677 return mIndexCur.valueFor(device); 5678} 5679 5680void AudioPolicyManager::StreamDescriptor::dump(int fd) 5681{ 5682 const size_t SIZE = 256; 5683 char buffer[SIZE]; 5684 String8 result; 5685 5686 snprintf(buffer, SIZE, "%s %02d %02d ", 5687 mCanBeMuted ? "true " : "false", mIndexMin, mIndexMax); 5688 result.append(buffer); 5689 for (size_t i = 0; i < mIndexCur.size(); i++) { 5690 snprintf(buffer, SIZE, "%04x : %02d, ", 5691 mIndexCur.keyAt(i), 5692 mIndexCur.valueAt(i)); 5693 result.append(buffer); 5694 } 5695 result.append("\n"); 5696 5697 write(fd, result.string(), result.size()); 5698} 5699 5700// --- EffectDescriptor class implementation 5701 5702status_t AudioPolicyManager::EffectDescriptor::dump(int fd) 5703{ 5704 const size_t SIZE = 256; 5705 char buffer[SIZE]; 5706 String8 result; 5707 5708 snprintf(buffer, SIZE, " I/O: %d\n", mIo); 5709 result.append(buffer); 5710 snprintf(buffer, SIZE, " Strategy: %d\n", mStrategy); 5711 result.append(buffer); 5712 snprintf(buffer, SIZE, " Session: %d\n", mSession); 5713 result.append(buffer); 5714 snprintf(buffer, SIZE, " Name: %s\n", mDesc.name); 5715 result.append(buffer); 5716 snprintf(buffer, SIZE, " %s\n", mEnabled ? "Enabled" : "Disabled"); 5717 result.append(buffer); 5718 write(fd, result.string(), result.size()); 5719 5720 return NO_ERROR; 5721} 5722 5723// --- HwModule class implementation 5724 5725AudioPolicyManager::HwModule::HwModule(const char *name) 5726 : mName(strndup(name, AUDIO_HARDWARE_MODULE_ID_MAX_LEN)), 5727 mHalVersion(AUDIO_DEVICE_API_VERSION_MIN), mHandle(0) 5728{ 5729} 5730 5731AudioPolicyManager::HwModule::~HwModule() 5732{ 5733 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 5734 mOutputProfiles[i]->mSupportedDevices.clear(); 5735 } 5736 for (size_t i = 0; i < mInputProfiles.size(); i++) { 5737 mInputProfiles[i]->mSupportedDevices.clear(); 5738 } 5739 free((void *)mName); 5740} 5741 5742status_t AudioPolicyManager::HwModule::loadInput(cnode *root) 5743{ 5744 cnode *node = root->first_child; 5745 5746 sp<IOProfile> profile = new IOProfile(String8(root->name), AUDIO_PORT_ROLE_SINK, this); 5747 5748 while (node) { 5749 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) { 5750 profile->loadSamplingRates((char *)node->value); 5751 } else if (strcmp(node->name, FORMATS_TAG) == 0) { 5752 profile->loadFormats((char *)node->value); 5753 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 5754 profile->loadInChannels((char *)node->value); 5755 } else if (strcmp(node->name, DEVICES_TAG) == 0) { 5756 profile->mSupportedDevices.loadDevicesFromName((char *)node->value, 5757 mDeclaredDevices); 5758 } else if (strcmp(node->name, FLAGS_TAG) == 0) { 5759 profile->mFlags = parseInputFlagNames((char *)node->value); 5760 } else if (strcmp(node->name, GAINS_TAG) == 0) { 5761 profile->loadGains(node); 5762 } 5763 node = node->next; 5764 } 5765 ALOGW_IF(profile->mSupportedDevices.isEmpty(), 5766 "loadInput() invalid supported devices"); 5767 ALOGW_IF(profile->mChannelMasks.size() == 0, 5768 "loadInput() invalid supported channel masks"); 5769 ALOGW_IF(profile->mSamplingRates.size() == 0, 5770 "loadInput() invalid supported sampling rates"); 5771 ALOGW_IF(profile->mFormats.size() == 0, 5772 "loadInput() invalid supported formats"); 5773 if (!profile->mSupportedDevices.isEmpty() && 5774 (profile->mChannelMasks.size() != 0) && 5775 (profile->mSamplingRates.size() != 0) && 5776 (profile->mFormats.size() != 0)) { 5777 5778 ALOGV("loadInput() adding input Supported Devices %04x", 5779 profile->mSupportedDevices.types()); 5780 5781 mInputProfiles.add(profile); 5782 return NO_ERROR; 5783 } else { 5784 return BAD_VALUE; 5785 } 5786} 5787 5788status_t AudioPolicyManager::HwModule::loadOutput(cnode *root) 5789{ 5790 cnode *node = root->first_child; 5791 5792 sp<IOProfile> profile = new IOProfile(String8(root->name), AUDIO_PORT_ROLE_SOURCE, this); 5793 5794 while (node) { 5795 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) { 5796 profile->loadSamplingRates((char *)node->value); 5797 } else if (strcmp(node->name, FORMATS_TAG) == 0) { 5798 profile->loadFormats((char *)node->value); 5799 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 5800 profile->loadOutChannels((char *)node->value); 5801 } else if (strcmp(node->name, DEVICES_TAG) == 0) { 5802 profile->mSupportedDevices.loadDevicesFromName((char *)node->value, 5803 mDeclaredDevices); 5804 } else if (strcmp(node->name, FLAGS_TAG) == 0) { 5805 profile->mFlags = parseOutputFlagNames((char *)node->value); 5806 } else if (strcmp(node->name, GAINS_TAG) == 0) { 5807 profile->loadGains(node); 5808 } 5809 node = node->next; 5810 } 5811 ALOGW_IF(profile->mSupportedDevices.isEmpty(), 5812 "loadOutput() invalid supported devices"); 5813 ALOGW_IF(profile->mChannelMasks.size() == 0, 5814 "loadOutput() invalid supported channel masks"); 5815 ALOGW_IF(profile->mSamplingRates.size() == 0, 5816 "loadOutput() invalid supported sampling rates"); 5817 ALOGW_IF(profile->mFormats.size() == 0, 5818 "loadOutput() invalid supported formats"); 5819 if (!profile->mSupportedDevices.isEmpty() && 5820 (profile->mChannelMasks.size() != 0) && 5821 (profile->mSamplingRates.size() != 0) && 5822 (profile->mFormats.size() != 0)) { 5823 5824 ALOGV("loadOutput() adding output Supported Devices %04x, mFlags %04x", 5825 profile->mSupportedDevices.types(), profile->mFlags); 5826 5827 mOutputProfiles.add(profile); 5828 return NO_ERROR; 5829 } else { 5830 return BAD_VALUE; 5831 } 5832} 5833 5834status_t AudioPolicyManager::HwModule::loadDevice(cnode *root) 5835{ 5836 cnode *node = root->first_child; 5837 5838 audio_devices_t type = AUDIO_DEVICE_NONE; 5839 while (node) { 5840 if (strcmp(node->name, DEVICE_TYPE) == 0) { 5841 type = parseDeviceNames((char *)node->value); 5842 break; 5843 } 5844 node = node->next; 5845 } 5846 if (type == AUDIO_DEVICE_NONE || 5847 (!audio_is_input_device(type) && !audio_is_output_device(type))) { 5848 ALOGW("loadDevice() bad type %08x", type); 5849 return BAD_VALUE; 5850 } 5851 sp<DeviceDescriptor> deviceDesc = new DeviceDescriptor(String8(root->name), type); 5852 deviceDesc->mModule = this; 5853 5854 node = root->first_child; 5855 while (node) { 5856 if (strcmp(node->name, DEVICE_ADDRESS) == 0) { 5857 deviceDesc->mAddress = String8((char *)node->value); 5858 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 5859 if (audio_is_input_device(type)) { 5860 deviceDesc->loadInChannels((char *)node->value); 5861 } else { 5862 deviceDesc->loadOutChannels((char *)node->value); 5863 } 5864 } else if (strcmp(node->name, GAINS_TAG) == 0) { 5865 deviceDesc->loadGains(node); 5866 } 5867 node = node->next; 5868 } 5869 5870 ALOGV("loadDevice() adding device name %s type %08x address %s", 5871 deviceDesc->mName.string(), type, deviceDesc->mAddress.string()); 5872 5873 mDeclaredDevices.add(deviceDesc); 5874 5875 return NO_ERROR; 5876} 5877 5878void AudioPolicyManager::HwModule::dump(int fd) 5879{ 5880 const size_t SIZE = 256; 5881 char buffer[SIZE]; 5882 String8 result; 5883 5884 snprintf(buffer, SIZE, " - name: %s\n", mName); 5885 result.append(buffer); 5886 snprintf(buffer, SIZE, " - handle: %d\n", mHandle); 5887 result.append(buffer); 5888 snprintf(buffer, SIZE, " - version: %u.%u\n", mHalVersion >> 8, mHalVersion & 0xFF); 5889 result.append(buffer); 5890 write(fd, result.string(), result.size()); 5891 if (mOutputProfiles.size()) { 5892 write(fd, " - outputs:\n", strlen(" - outputs:\n")); 5893 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 5894 snprintf(buffer, SIZE, " output %zu:\n", i); 5895 write(fd, buffer, strlen(buffer)); 5896 mOutputProfiles[i]->dump(fd); 5897 } 5898 } 5899 if (mInputProfiles.size()) { 5900 write(fd, " - inputs:\n", strlen(" - inputs:\n")); 5901 for (size_t i = 0; i < mInputProfiles.size(); i++) { 5902 snprintf(buffer, SIZE, " input %zu:\n", i); 5903 write(fd, buffer, strlen(buffer)); 5904 mInputProfiles[i]->dump(fd); 5905 } 5906 } 5907 if (mDeclaredDevices.size()) { 5908 write(fd, " - devices:\n", strlen(" - devices:\n")); 5909 for (size_t i = 0; i < mDeclaredDevices.size(); i++) { 5910 mDeclaredDevices[i]->dump(fd, 4, i); 5911 } 5912 } 5913} 5914 5915// --- AudioPort class implementation 5916 5917 5918AudioPolicyManager::AudioPort::AudioPort(const String8& name, audio_port_type_t type, 5919 audio_port_role_t role, const sp<HwModule>& module) : 5920 mName(name), mType(type), mRole(role), mModule(module), mFlags(0) 5921{ 5922 mUseInChannelMask = ((type == AUDIO_PORT_TYPE_DEVICE) && (role == AUDIO_PORT_ROLE_SOURCE)) || 5923 ((type == AUDIO_PORT_TYPE_MIX) && (role == AUDIO_PORT_ROLE_SINK)); 5924} 5925 5926void AudioPolicyManager::AudioPort::toAudioPort(struct audio_port *port) const 5927{ 5928 port->role = mRole; 5929 port->type = mType; 5930 unsigned int i; 5931 for (i = 0; i < mSamplingRates.size() && i < AUDIO_PORT_MAX_SAMPLING_RATES; i++) { 5932 if (mSamplingRates[i] != 0) { 5933 port->sample_rates[i] = mSamplingRates[i]; 5934 } 5935 } 5936 port->num_sample_rates = i; 5937 for (i = 0; i < mChannelMasks.size() && i < AUDIO_PORT_MAX_CHANNEL_MASKS; i++) { 5938 if (mChannelMasks[i] != 0) { 5939 port->channel_masks[i] = mChannelMasks[i]; 5940 } 5941 } 5942 port->num_channel_masks = i; 5943 for (i = 0; i < mFormats.size() && i < AUDIO_PORT_MAX_FORMATS; i++) { 5944 if (mFormats[i] != 0) { 5945 port->formats[i] = mFormats[i]; 5946 } 5947 } 5948 port->num_formats = i; 5949 5950 ALOGV("AudioPort::toAudioPort() num gains %zu", mGains.size()); 5951 5952 for (i = 0; i < mGains.size() && i < AUDIO_PORT_MAX_GAINS; i++) { 5953 port->gains[i] = mGains[i]->mGain; 5954 } 5955 port->num_gains = i; 5956} 5957 5958void AudioPolicyManager::AudioPort::importAudioPort(const sp<AudioPort> port) { 5959 for (size_t k = 0 ; k < port->mSamplingRates.size() ; k++) { 5960 const uint32_t rate = port->mSamplingRates.itemAt(k); 5961 if (rate != 0) { // skip "dynamic" rates 5962 bool hasRate = false; 5963 for (size_t l = 0 ; l < mSamplingRates.size() ; l++) { 5964 if (rate == mSamplingRates.itemAt(l)) { 5965 hasRate = true; 5966 break; 5967 } 5968 } 5969 if (!hasRate) { // never import a sampling rate twice 5970 mSamplingRates.add(rate); 5971 } 5972 } 5973 } 5974 for (size_t k = 0 ; k < port->mChannelMasks.size() ; k++) { 5975 const audio_channel_mask_t mask = port->mChannelMasks.itemAt(k); 5976 if (mask != 0) { // skip "dynamic" masks 5977 bool hasMask = false; 5978 for (size_t l = 0 ; l < mChannelMasks.size() ; l++) { 5979 if (mask == mChannelMasks.itemAt(l)) { 5980 hasMask = true; 5981 break; 5982 } 5983 } 5984 if (!hasMask) { // never import a channel mask twice 5985 mChannelMasks.add(mask); 5986 } 5987 } 5988 } 5989 for (size_t k = 0 ; k < port->mFormats.size() ; k++) { 5990 const audio_format_t format = port->mFormats.itemAt(k); 5991 if (format != 0) { // skip "dynamic" formats 5992 bool hasFormat = false; 5993 for (size_t l = 0 ; l < mFormats.size() ; l++) { 5994 if (format == mFormats.itemAt(l)) { 5995 hasFormat = true; 5996 break; 5997 } 5998 } 5999 if (!hasFormat) { // never import a channel mask twice 6000 mFormats.add(format); 6001 } 6002 } 6003 } 6004 for (size_t k = 0 ; k < port->mGains.size() ; k++) { 6005 sp<AudioGain> gain = port->mGains.itemAt(k); 6006 if (gain != 0) { 6007 bool hasGain = false; 6008 for (size_t l = 0 ; l < mGains.size() ; l++) { 6009 if (gain == mGains.itemAt(l)) { 6010 hasGain = true; 6011 break; 6012 } 6013 } 6014 if (!hasGain) { // never import a gain twice 6015 mGains.add(gain); 6016 } 6017 } 6018 } 6019} 6020 6021void AudioPolicyManager::AudioPort::clearCapabilities() { 6022 mChannelMasks.clear(); 6023 mFormats.clear(); 6024 mSamplingRates.clear(); 6025 mGains.clear(); 6026} 6027 6028void AudioPolicyManager::AudioPort::loadSamplingRates(char *name) 6029{ 6030 char *str = strtok(name, "|"); 6031 6032 // by convention, "0' in the first entry in mSamplingRates indicates the supported sampling 6033 // rates should be read from the output stream after it is opened for the first time 6034 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 6035 mSamplingRates.add(0); 6036 return; 6037 } 6038 6039 while (str != NULL) { 6040 uint32_t rate = atoi(str); 6041 if (rate != 0) { 6042 ALOGV("loadSamplingRates() adding rate %d", rate); 6043 mSamplingRates.add(rate); 6044 } 6045 str = strtok(NULL, "|"); 6046 } 6047} 6048 6049void AudioPolicyManager::AudioPort::loadFormats(char *name) 6050{ 6051 char *str = strtok(name, "|"); 6052 6053 // by convention, "0' in the first entry in mFormats indicates the supported formats 6054 // should be read from the output stream after it is opened for the first time 6055 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 6056 mFormats.add(AUDIO_FORMAT_DEFAULT); 6057 return; 6058 } 6059 6060 while (str != NULL) { 6061 audio_format_t format = (audio_format_t)stringToEnum(sFormatNameToEnumTable, 6062 ARRAY_SIZE(sFormatNameToEnumTable), 6063 str); 6064 if (format != AUDIO_FORMAT_DEFAULT) { 6065 mFormats.add(format); 6066 } 6067 str = strtok(NULL, "|"); 6068 } 6069} 6070 6071void AudioPolicyManager::AudioPort::loadInChannels(char *name) 6072{ 6073 const char *str = strtok(name, "|"); 6074 6075 ALOGV("loadInChannels() %s", name); 6076 6077 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 6078 mChannelMasks.add(0); 6079 return; 6080 } 6081 6082 while (str != NULL) { 6083 audio_channel_mask_t channelMask = 6084 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable, 6085 ARRAY_SIZE(sInChannelsNameToEnumTable), 6086 str); 6087 if (channelMask != 0) { 6088 ALOGV("loadInChannels() adding channelMask %04x", channelMask); 6089 mChannelMasks.add(channelMask); 6090 } 6091 str = strtok(NULL, "|"); 6092 } 6093} 6094 6095void AudioPolicyManager::AudioPort::loadOutChannels(char *name) 6096{ 6097 const char *str = strtok(name, "|"); 6098 6099 ALOGV("loadOutChannels() %s", name); 6100 6101 // by convention, "0' in the first entry in mChannelMasks indicates the supported channel 6102 // masks should be read from the output stream after it is opened for the first time 6103 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 6104 mChannelMasks.add(0); 6105 return; 6106 } 6107 6108 while (str != NULL) { 6109 audio_channel_mask_t channelMask = 6110 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable, 6111 ARRAY_SIZE(sOutChannelsNameToEnumTable), 6112 str); 6113 if (channelMask != 0) { 6114 mChannelMasks.add(channelMask); 6115 } 6116 str = strtok(NULL, "|"); 6117 } 6118 return; 6119} 6120 6121audio_gain_mode_t AudioPolicyManager::AudioPort::loadGainMode(char *name) 6122{ 6123 const char *str = strtok(name, "|"); 6124 6125 ALOGV("loadGainMode() %s", name); 6126 audio_gain_mode_t mode = 0; 6127 while (str != NULL) { 6128 mode |= (audio_gain_mode_t)stringToEnum(sGainModeNameToEnumTable, 6129 ARRAY_SIZE(sGainModeNameToEnumTable), 6130 str); 6131 str = strtok(NULL, "|"); 6132 } 6133 return mode; 6134} 6135 6136void AudioPolicyManager::AudioPort::loadGain(cnode *root, int index) 6137{ 6138 cnode *node = root->first_child; 6139 6140 sp<AudioGain> gain = new AudioGain(index, mUseInChannelMask); 6141 6142 while (node) { 6143 if (strcmp(node->name, GAIN_MODE) == 0) { 6144 gain->mGain.mode = loadGainMode((char *)node->value); 6145 } else if (strcmp(node->name, GAIN_CHANNELS) == 0) { 6146 if (mUseInChannelMask) { 6147 gain->mGain.channel_mask = 6148 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable, 6149 ARRAY_SIZE(sInChannelsNameToEnumTable), 6150 (char *)node->value); 6151 } else { 6152 gain->mGain.channel_mask = 6153 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable, 6154 ARRAY_SIZE(sOutChannelsNameToEnumTable), 6155 (char *)node->value); 6156 } 6157 } else if (strcmp(node->name, GAIN_MIN_VALUE) == 0) { 6158 gain->mGain.min_value = atoi((char *)node->value); 6159 } else if (strcmp(node->name, GAIN_MAX_VALUE) == 0) { 6160 gain->mGain.max_value = atoi((char *)node->value); 6161 } else if (strcmp(node->name, GAIN_DEFAULT_VALUE) == 0) { 6162 gain->mGain.default_value = atoi((char *)node->value); 6163 } else if (strcmp(node->name, GAIN_STEP_VALUE) == 0) { 6164 gain->mGain.step_value = atoi((char *)node->value); 6165 } else if (strcmp(node->name, GAIN_MIN_RAMP_MS) == 0) { 6166 gain->mGain.min_ramp_ms = atoi((char *)node->value); 6167 } else if (strcmp(node->name, GAIN_MAX_RAMP_MS) == 0) { 6168 gain->mGain.max_ramp_ms = atoi((char *)node->value); 6169 } 6170 node = node->next; 6171 } 6172 6173 ALOGV("loadGain() adding new gain mode %08x channel mask %08x min mB %d max mB %d", 6174 gain->mGain.mode, gain->mGain.channel_mask, gain->mGain.min_value, gain->mGain.max_value); 6175 6176 if (gain->mGain.mode == 0) { 6177 return; 6178 } 6179 mGains.add(gain); 6180} 6181 6182void AudioPolicyManager::AudioPort::loadGains(cnode *root) 6183{ 6184 cnode *node = root->first_child; 6185 int index = 0; 6186 while (node) { 6187 ALOGV("loadGains() loading gain %s", node->name); 6188 loadGain(node, index++); 6189 node = node->next; 6190 } 6191} 6192 6193status_t AudioPolicyManager::AudioPort::checkExactSamplingRate(uint32_t samplingRate) const 6194{ 6195 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 6196 if (mSamplingRates[i] == samplingRate) { 6197 return NO_ERROR; 6198 } 6199 } 6200 return BAD_VALUE; 6201} 6202 6203status_t AudioPolicyManager::AudioPort::checkCompatibleSamplingRate(uint32_t samplingRate, 6204 uint32_t *updatedSamplingRate) const 6205{ 6206 // Search for the closest supported sampling rate that is above (preferred) 6207 // or below (acceptable) the desired sampling rate, within a permitted ratio. 6208 // The sampling rates do not need to be sorted in ascending order. 6209 ssize_t maxBelow = -1; 6210 ssize_t minAbove = -1; 6211 uint32_t candidate; 6212 for (size_t i = 0; i < mSamplingRates.size(); i++) { 6213 candidate = mSamplingRates[i]; 6214 if (candidate == samplingRate) { 6215 if (updatedSamplingRate != NULL) { 6216 *updatedSamplingRate = candidate; 6217 } 6218 return NO_ERROR; 6219 } 6220 // candidate < desired 6221 if (candidate < samplingRate) { 6222 if (maxBelow < 0 || candidate > mSamplingRates[maxBelow]) { 6223 maxBelow = i; 6224 } 6225 // candidate > desired 6226 } else { 6227 if (minAbove < 0 || candidate < mSamplingRates[minAbove]) { 6228 minAbove = i; 6229 } 6230 } 6231 } 6232 // This uses hard-coded knowledge about AudioFlinger resampling ratios. 6233 // TODO Move these assumptions out. 6234 static const uint32_t kMaxDownSampleRatio = 6; // beyond this aliasing occurs 6235 static const uint32_t kMaxUpSampleRatio = 256; // beyond this sample rate inaccuracies occur 6236 // due to approximation by an int32_t of the 6237 // phase increments 6238 // Prefer to down-sample from a higher sampling rate, as we get the desired frequency spectrum. 6239 if (minAbove >= 0) { 6240 candidate = mSamplingRates[minAbove]; 6241 if (candidate / kMaxDownSampleRatio <= samplingRate) { 6242 if (updatedSamplingRate != NULL) { 6243 *updatedSamplingRate = candidate; 6244 } 6245 return NO_ERROR; 6246 } 6247 } 6248 // But if we have to up-sample from a lower sampling rate, that's OK. 6249 if (maxBelow >= 0) { 6250 candidate = mSamplingRates[maxBelow]; 6251 if (candidate * kMaxUpSampleRatio >= samplingRate) { 6252 if (updatedSamplingRate != NULL) { 6253 *updatedSamplingRate = candidate; 6254 } 6255 return NO_ERROR; 6256 } 6257 } 6258 // leave updatedSamplingRate unmodified 6259 return BAD_VALUE; 6260} 6261 6262status_t AudioPolicyManager::AudioPort::checkExactChannelMask(audio_channel_mask_t channelMask) const 6263{ 6264 for (size_t i = 0; i < mChannelMasks.size(); i++) { 6265 if (mChannelMasks[i] == channelMask) { 6266 return NO_ERROR; 6267 } 6268 } 6269 return BAD_VALUE; 6270} 6271 6272status_t AudioPolicyManager::AudioPort::checkCompatibleChannelMask(audio_channel_mask_t channelMask) 6273 const 6274{ 6275 const bool isRecordThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SINK; 6276 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 6277 // FIXME Does not handle multi-channel automatic conversions yet 6278 audio_channel_mask_t supported = mChannelMasks[i]; 6279 if (supported == channelMask) { 6280 return NO_ERROR; 6281 } 6282 if (isRecordThread) { 6283 // This uses hard-coded knowledge that AudioFlinger can silently down-mix and up-mix. 6284 // FIXME Abstract this out to a table. 6285 if (((supported == AUDIO_CHANNEL_IN_FRONT_BACK || supported == AUDIO_CHANNEL_IN_STEREO) 6286 && channelMask == AUDIO_CHANNEL_IN_MONO) || 6287 (supported == AUDIO_CHANNEL_IN_MONO && (channelMask == AUDIO_CHANNEL_IN_FRONT_BACK 6288 || channelMask == AUDIO_CHANNEL_IN_STEREO))) { 6289 return NO_ERROR; 6290 } 6291 } 6292 } 6293 return BAD_VALUE; 6294} 6295 6296status_t AudioPolicyManager::AudioPort::checkFormat(audio_format_t format) const 6297{ 6298 for (size_t i = 0; i < mFormats.size(); i ++) { 6299 if (mFormats[i] == format) { 6300 return NO_ERROR; 6301 } 6302 } 6303 return BAD_VALUE; 6304} 6305 6306 6307uint32_t AudioPolicyManager::AudioPort::pickSamplingRate() const 6308{ 6309 // special case for uninitialized dynamic profile 6310 if (mSamplingRates.size() == 1 && mSamplingRates[0] == 0) { 6311 return 0; 6312 } 6313 6314 // For direct outputs, pick minimum sampling rate: this helps ensuring that the 6315 // channel count / sampling rate combination chosen will be supported by the connected 6316 // sink 6317 if ((mType == AUDIO_PORT_TYPE_MIX) && (mRole == AUDIO_PORT_ROLE_SOURCE) && 6318 (mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD))) { 6319 uint32_t samplingRate = UINT_MAX; 6320 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 6321 if ((mSamplingRates[i] < samplingRate) && (mSamplingRates[i] > 0)) { 6322 samplingRate = mSamplingRates[i]; 6323 } 6324 } 6325 return (samplingRate == UINT_MAX) ? 0 : samplingRate; 6326 } 6327 6328 uint32_t samplingRate = 0; 6329 uint32_t maxRate = MAX_MIXER_SAMPLING_RATE; 6330 6331 // For mixed output and inputs, use max mixer sampling rates. Do not 6332 // limit sampling rate otherwise 6333 if (mType != AUDIO_PORT_TYPE_MIX) { 6334 maxRate = UINT_MAX; 6335 } 6336 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 6337 if ((mSamplingRates[i] > samplingRate) && (mSamplingRates[i] <= maxRate)) { 6338 samplingRate = mSamplingRates[i]; 6339 } 6340 } 6341 return samplingRate; 6342} 6343 6344audio_channel_mask_t AudioPolicyManager::AudioPort::pickChannelMask() const 6345{ 6346 // special case for uninitialized dynamic profile 6347 if (mChannelMasks.size() == 1 && mChannelMasks[0] == 0) { 6348 return AUDIO_CHANNEL_NONE; 6349 } 6350 audio_channel_mask_t channelMask = AUDIO_CHANNEL_NONE; 6351 6352 // For direct outputs, pick minimum channel count: this helps ensuring that the 6353 // channel count / sampling rate combination chosen will be supported by the connected 6354 // sink 6355 if ((mType == AUDIO_PORT_TYPE_MIX) && (mRole == AUDIO_PORT_ROLE_SOURCE) && 6356 (mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD))) { 6357 uint32_t channelCount = UINT_MAX; 6358 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 6359 uint32_t cnlCount; 6360 if (mUseInChannelMask) { 6361 cnlCount = audio_channel_count_from_in_mask(mChannelMasks[i]); 6362 } else { 6363 cnlCount = audio_channel_count_from_out_mask(mChannelMasks[i]); 6364 } 6365 if ((cnlCount < channelCount) && (cnlCount > 0)) { 6366 channelMask = mChannelMasks[i]; 6367 channelCount = cnlCount; 6368 } 6369 } 6370 return channelMask; 6371 } 6372 6373 uint32_t channelCount = 0; 6374 uint32_t maxCount = MAX_MIXER_CHANNEL_COUNT; 6375 6376 // For mixed output and inputs, use max mixer channel count. Do not 6377 // limit channel count otherwise 6378 if (mType != AUDIO_PORT_TYPE_MIX) { 6379 maxCount = UINT_MAX; 6380 } 6381 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 6382 uint32_t cnlCount; 6383 if (mUseInChannelMask) { 6384 cnlCount = audio_channel_count_from_in_mask(mChannelMasks[i]); 6385 } else { 6386 cnlCount = audio_channel_count_from_out_mask(mChannelMasks[i]); 6387 } 6388 if ((cnlCount > channelCount) && (cnlCount <= maxCount)) { 6389 channelMask = mChannelMasks[i]; 6390 channelCount = cnlCount; 6391 } 6392 } 6393 return channelMask; 6394} 6395 6396/* format in order of increasing preference */ 6397const audio_format_t AudioPolicyManager::AudioPort::sPcmFormatCompareTable[] = { 6398 AUDIO_FORMAT_DEFAULT, 6399 AUDIO_FORMAT_PCM_16_BIT, 6400 AUDIO_FORMAT_PCM_8_24_BIT, 6401 AUDIO_FORMAT_PCM_24_BIT_PACKED, 6402 AUDIO_FORMAT_PCM_32_BIT, 6403 AUDIO_FORMAT_PCM_FLOAT, 6404}; 6405 6406int AudioPolicyManager::AudioPort::compareFormats(audio_format_t format1, 6407 audio_format_t format2) 6408{ 6409 // NOTE: AUDIO_FORMAT_INVALID is also considered not PCM and will be compared equal to any 6410 // compressed format and better than any PCM format. This is by design of pickFormat() 6411 if (!audio_is_linear_pcm(format1)) { 6412 if (!audio_is_linear_pcm(format2)) { 6413 return 0; 6414 } 6415 return 1; 6416 } 6417 if (!audio_is_linear_pcm(format2)) { 6418 return -1; 6419 } 6420 6421 int index1 = -1, index2 = -1; 6422 for (size_t i = 0; 6423 (i < ARRAY_SIZE(sPcmFormatCompareTable)) && ((index1 == -1) || (index2 == -1)); 6424 i ++) { 6425 if (sPcmFormatCompareTable[i] == format1) { 6426 index1 = i; 6427 } 6428 if (sPcmFormatCompareTable[i] == format2) { 6429 index2 = i; 6430 } 6431 } 6432 // format1 not found => index1 < 0 => format2 > format1 6433 // format2 not found => index2 < 0 => format2 < format1 6434 return index1 - index2; 6435} 6436 6437audio_format_t AudioPolicyManager::AudioPort::pickFormat() const 6438{ 6439 // special case for uninitialized dynamic profile 6440 if (mFormats.size() == 1 && mFormats[0] == 0) { 6441 return AUDIO_FORMAT_DEFAULT; 6442 } 6443 6444 audio_format_t format = AUDIO_FORMAT_DEFAULT; 6445 audio_format_t bestFormat = 6446 AudioPolicyManager::AudioPort::sPcmFormatCompareTable[ 6447 ARRAY_SIZE(AudioPolicyManager::AudioPort::sPcmFormatCompareTable) - 1]; 6448 // For mixed output and inputs, use best mixer output format. Do not 6449 // limit format otherwise 6450 if ((mType != AUDIO_PORT_TYPE_MIX) || 6451 ((mRole == AUDIO_PORT_ROLE_SOURCE) && 6452 (((mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)) != 0)))) { 6453 bestFormat = AUDIO_FORMAT_INVALID; 6454 } 6455 6456 for (size_t i = 0; i < mFormats.size(); i ++) { 6457 if ((compareFormats(mFormats[i], format) > 0) && 6458 (compareFormats(mFormats[i], bestFormat) <= 0)) { 6459 format = mFormats[i]; 6460 } 6461 } 6462 return format; 6463} 6464 6465status_t AudioPolicyManager::AudioPort::checkGain(const struct audio_gain_config *gainConfig, 6466 int index) const 6467{ 6468 if (index < 0 || (size_t)index >= mGains.size()) { 6469 return BAD_VALUE; 6470 } 6471 return mGains[index]->checkConfig(gainConfig); 6472} 6473 6474void AudioPolicyManager::AudioPort::dump(int fd, int spaces) const 6475{ 6476 const size_t SIZE = 256; 6477 char buffer[SIZE]; 6478 String8 result; 6479 6480 if (mName.size() != 0) { 6481 snprintf(buffer, SIZE, "%*s- name: %s\n", spaces, "", mName.string()); 6482 result.append(buffer); 6483 } 6484 6485 if (mSamplingRates.size() != 0) { 6486 snprintf(buffer, SIZE, "%*s- sampling rates: ", spaces, ""); 6487 result.append(buffer); 6488 for (size_t i = 0; i < mSamplingRates.size(); i++) { 6489 if (i == 0 && mSamplingRates[i] == 0) { 6490 snprintf(buffer, SIZE, "Dynamic"); 6491 } else { 6492 snprintf(buffer, SIZE, "%d", mSamplingRates[i]); 6493 } 6494 result.append(buffer); 6495 result.append(i == (mSamplingRates.size() - 1) ? "" : ", "); 6496 } 6497 result.append("\n"); 6498 } 6499 6500 if (mChannelMasks.size() != 0) { 6501 snprintf(buffer, SIZE, "%*s- channel masks: ", spaces, ""); 6502 result.append(buffer); 6503 for (size_t i = 0; i < mChannelMasks.size(); i++) { 6504 ALOGV("AudioPort::dump mChannelMasks %zu %08x", i, mChannelMasks[i]); 6505 6506 if (i == 0 && mChannelMasks[i] == 0) { 6507 snprintf(buffer, SIZE, "Dynamic"); 6508 } else { 6509 snprintf(buffer, SIZE, "0x%04x", mChannelMasks[i]); 6510 } 6511 result.append(buffer); 6512 result.append(i == (mChannelMasks.size() - 1) ? "" : ", "); 6513 } 6514 result.append("\n"); 6515 } 6516 6517 if (mFormats.size() != 0) { 6518 snprintf(buffer, SIZE, "%*s- formats: ", spaces, ""); 6519 result.append(buffer); 6520 for (size_t i = 0; i < mFormats.size(); i++) { 6521 const char *formatStr = enumToString(sFormatNameToEnumTable, 6522 ARRAY_SIZE(sFormatNameToEnumTable), 6523 mFormats[i]); 6524 if (i == 0 && strcmp(formatStr, "") == 0) { 6525 snprintf(buffer, SIZE, "Dynamic"); 6526 } else { 6527 snprintf(buffer, SIZE, "%s", formatStr); 6528 } 6529 result.append(buffer); 6530 result.append(i == (mFormats.size() - 1) ? "" : ", "); 6531 } 6532 result.append("\n"); 6533 } 6534 write(fd, result.string(), result.size()); 6535 if (mGains.size() != 0) { 6536 snprintf(buffer, SIZE, "%*s- gains:\n", spaces, ""); 6537 write(fd, buffer, strlen(buffer) + 1); 6538 result.append(buffer); 6539 for (size_t i = 0; i < mGains.size(); i++) { 6540 mGains[i]->dump(fd, spaces + 2, i); 6541 } 6542 } 6543} 6544 6545// --- AudioGain class implementation 6546 6547AudioPolicyManager::AudioGain::AudioGain(int index, bool useInChannelMask) 6548{ 6549 mIndex = index; 6550 mUseInChannelMask = useInChannelMask; 6551 memset(&mGain, 0, sizeof(struct audio_gain)); 6552} 6553 6554void AudioPolicyManager::AudioGain::getDefaultConfig(struct audio_gain_config *config) 6555{ 6556 config->index = mIndex; 6557 config->mode = mGain.mode; 6558 config->channel_mask = mGain.channel_mask; 6559 if ((mGain.mode & AUDIO_GAIN_MODE_JOINT) == AUDIO_GAIN_MODE_JOINT) { 6560 config->values[0] = mGain.default_value; 6561 } else { 6562 uint32_t numValues; 6563 if (mUseInChannelMask) { 6564 numValues = audio_channel_count_from_in_mask(mGain.channel_mask); 6565 } else { 6566 numValues = audio_channel_count_from_out_mask(mGain.channel_mask); 6567 } 6568 for (size_t i = 0; i < numValues; i++) { 6569 config->values[i] = mGain.default_value; 6570 } 6571 } 6572 if ((mGain.mode & AUDIO_GAIN_MODE_RAMP) == AUDIO_GAIN_MODE_RAMP) { 6573 config->ramp_duration_ms = mGain.min_ramp_ms; 6574 } 6575} 6576 6577status_t AudioPolicyManager::AudioGain::checkConfig(const struct audio_gain_config *config) 6578{ 6579 if ((config->mode & ~mGain.mode) != 0) { 6580 return BAD_VALUE; 6581 } 6582 if ((config->mode & AUDIO_GAIN_MODE_JOINT) == AUDIO_GAIN_MODE_JOINT) { 6583 if ((config->values[0] < mGain.min_value) || 6584 (config->values[0] > mGain.max_value)) { 6585 return BAD_VALUE; 6586 } 6587 } else { 6588 if ((config->channel_mask & ~mGain.channel_mask) != 0) { 6589 return BAD_VALUE; 6590 } 6591 uint32_t numValues; 6592 if (mUseInChannelMask) { 6593 numValues = audio_channel_count_from_in_mask(config->channel_mask); 6594 } else { 6595 numValues = audio_channel_count_from_out_mask(config->channel_mask); 6596 } 6597 for (size_t i = 0; i < numValues; i++) { 6598 if ((config->values[i] < mGain.min_value) || 6599 (config->values[i] > mGain.max_value)) { 6600 return BAD_VALUE; 6601 } 6602 } 6603 } 6604 if ((config->mode & AUDIO_GAIN_MODE_RAMP) == AUDIO_GAIN_MODE_RAMP) { 6605 if ((config->ramp_duration_ms < mGain.min_ramp_ms) || 6606 (config->ramp_duration_ms > mGain.max_ramp_ms)) { 6607 return BAD_VALUE; 6608 } 6609 } 6610 return NO_ERROR; 6611} 6612 6613void AudioPolicyManager::AudioGain::dump(int fd, int spaces, int index) const 6614{ 6615 const size_t SIZE = 256; 6616 char buffer[SIZE]; 6617 String8 result; 6618 6619 snprintf(buffer, SIZE, "%*sGain %d:\n", spaces, "", index+1); 6620 result.append(buffer); 6621 snprintf(buffer, SIZE, "%*s- mode: %08x\n", spaces, "", mGain.mode); 6622 result.append(buffer); 6623 snprintf(buffer, SIZE, "%*s- channel_mask: %08x\n", spaces, "", mGain.channel_mask); 6624 result.append(buffer); 6625 snprintf(buffer, SIZE, "%*s- min_value: %d mB\n", spaces, "", mGain.min_value); 6626 result.append(buffer); 6627 snprintf(buffer, SIZE, "%*s- max_value: %d mB\n", spaces, "", mGain.max_value); 6628 result.append(buffer); 6629 snprintf(buffer, SIZE, "%*s- default_value: %d mB\n", spaces, "", mGain.default_value); 6630 result.append(buffer); 6631 snprintf(buffer, SIZE, "%*s- step_value: %d mB\n", spaces, "", mGain.step_value); 6632 result.append(buffer); 6633 snprintf(buffer, SIZE, "%*s- min_ramp_ms: %d ms\n", spaces, "", mGain.min_ramp_ms); 6634 result.append(buffer); 6635 snprintf(buffer, SIZE, "%*s- max_ramp_ms: %d ms\n", spaces, "", mGain.max_ramp_ms); 6636 result.append(buffer); 6637 6638 write(fd, result.string(), result.size()); 6639} 6640 6641// --- AudioPortConfig class implementation 6642 6643AudioPolicyManager::AudioPortConfig::AudioPortConfig() 6644{ 6645 mSamplingRate = 0; 6646 mChannelMask = AUDIO_CHANNEL_NONE; 6647 mFormat = AUDIO_FORMAT_INVALID; 6648 mGain.index = -1; 6649} 6650 6651status_t AudioPolicyManager::AudioPortConfig::applyAudioPortConfig( 6652 const struct audio_port_config *config, 6653 struct audio_port_config *backupConfig) 6654{ 6655 struct audio_port_config localBackupConfig; 6656 status_t status = NO_ERROR; 6657 6658 localBackupConfig.config_mask = config->config_mask; 6659 toAudioPortConfig(&localBackupConfig); 6660 6661 sp<AudioPort> audioport = getAudioPort(); 6662 if (audioport == 0) { 6663 status = NO_INIT; 6664 goto exit; 6665 } 6666 if (config->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { 6667 status = audioport->checkExactSamplingRate(config->sample_rate); 6668 if (status != NO_ERROR) { 6669 goto exit; 6670 } 6671 mSamplingRate = config->sample_rate; 6672 } 6673 if (config->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { 6674 status = audioport->checkExactChannelMask(config->channel_mask); 6675 if (status != NO_ERROR) { 6676 goto exit; 6677 } 6678 mChannelMask = config->channel_mask; 6679 } 6680 if (config->config_mask & AUDIO_PORT_CONFIG_FORMAT) { 6681 status = audioport->checkFormat(config->format); 6682 if (status != NO_ERROR) { 6683 goto exit; 6684 } 6685 mFormat = config->format; 6686 } 6687 if (config->config_mask & AUDIO_PORT_CONFIG_GAIN) { 6688 status = audioport->checkGain(&config->gain, config->gain.index); 6689 if (status != NO_ERROR) { 6690 goto exit; 6691 } 6692 mGain = config->gain; 6693 } 6694 6695exit: 6696 if (status != NO_ERROR) { 6697 applyAudioPortConfig(&localBackupConfig); 6698 } 6699 if (backupConfig != NULL) { 6700 *backupConfig = localBackupConfig; 6701 } 6702 return status; 6703} 6704 6705void AudioPolicyManager::AudioPortConfig::toAudioPortConfig( 6706 struct audio_port_config *dstConfig, 6707 const struct audio_port_config *srcConfig) const 6708{ 6709 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { 6710 dstConfig->sample_rate = mSamplingRate; 6711 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE)) { 6712 dstConfig->sample_rate = srcConfig->sample_rate; 6713 } 6714 } else { 6715 dstConfig->sample_rate = 0; 6716 } 6717 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { 6718 dstConfig->channel_mask = mChannelMask; 6719 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK)) { 6720 dstConfig->channel_mask = srcConfig->channel_mask; 6721 } 6722 } else { 6723 dstConfig->channel_mask = AUDIO_CHANNEL_NONE; 6724 } 6725 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_FORMAT) { 6726 dstConfig->format = mFormat; 6727 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_FORMAT)) { 6728 dstConfig->format = srcConfig->format; 6729 } 6730 } else { 6731 dstConfig->format = AUDIO_FORMAT_INVALID; 6732 } 6733 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_GAIN) { 6734 dstConfig->gain = mGain; 6735 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_GAIN)) { 6736 dstConfig->gain = srcConfig->gain; 6737 } 6738 } else { 6739 dstConfig->gain.index = -1; 6740 } 6741 if (dstConfig->gain.index != -1) { 6742 dstConfig->config_mask |= AUDIO_PORT_CONFIG_GAIN; 6743 } else { 6744 dstConfig->config_mask &= ~AUDIO_PORT_CONFIG_GAIN; 6745 } 6746} 6747 6748// --- IOProfile class implementation 6749 6750AudioPolicyManager::IOProfile::IOProfile(const String8& name, audio_port_role_t role, 6751 const sp<HwModule>& module) 6752 : AudioPort(name, AUDIO_PORT_TYPE_MIX, role, module) 6753{ 6754} 6755 6756AudioPolicyManager::IOProfile::~IOProfile() 6757{ 6758} 6759 6760// checks if the IO profile is compatible with specified parameters. 6761// Sampling rate, format and channel mask must be specified in order to 6762// get a valid a match 6763bool AudioPolicyManager::IOProfile::isCompatibleProfile(audio_devices_t device, 6764 uint32_t samplingRate, 6765 uint32_t *updatedSamplingRate, 6766 audio_format_t format, 6767 audio_channel_mask_t channelMask, 6768 uint32_t flags) const 6769{ 6770 const bool isPlaybackThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SOURCE; 6771 const bool isRecordThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SINK; 6772 ALOG_ASSERT(isPlaybackThread != isRecordThread); 6773 6774 if ((mSupportedDevices.types() & device) != device) { 6775 return false; 6776 } 6777 6778 if (samplingRate == 0) { 6779 return false; 6780 } 6781 uint32_t myUpdatedSamplingRate = samplingRate; 6782 if (isPlaybackThread && checkExactSamplingRate(samplingRate) != NO_ERROR) { 6783 return false; 6784 } 6785 if (isRecordThread && checkCompatibleSamplingRate(samplingRate, &myUpdatedSamplingRate) != 6786 NO_ERROR) { 6787 return false; 6788 } 6789 6790 if (!audio_is_valid_format(format) || checkFormat(format) != NO_ERROR) { 6791 return false; 6792 } 6793 6794 if (isPlaybackThread && (!audio_is_output_channel(channelMask) || 6795 checkExactChannelMask(channelMask) != NO_ERROR)) { 6796 return false; 6797 } 6798 if (isRecordThread && (!audio_is_input_channel(channelMask) || 6799 checkCompatibleChannelMask(channelMask) != NO_ERROR)) { 6800 return false; 6801 } 6802 6803 if (isPlaybackThread && (mFlags & flags) != flags) { 6804 return false; 6805 } 6806 // The only input flag that is allowed to be different is the fast flag. 6807 // An existing fast stream is compatible with a normal track request. 6808 // An existing normal stream is compatible with a fast track request, 6809 // but the fast request will be denied by AudioFlinger and converted to normal track. 6810 if (isRecordThread && ((mFlags ^ flags) & 6811 ~AUDIO_INPUT_FLAG_FAST)) { 6812 return false; 6813 } 6814 6815 if (updatedSamplingRate != NULL) { 6816 *updatedSamplingRate = myUpdatedSamplingRate; 6817 } 6818 return true; 6819} 6820 6821void AudioPolicyManager::IOProfile::dump(int fd) 6822{ 6823 const size_t SIZE = 256; 6824 char buffer[SIZE]; 6825 String8 result; 6826 6827 AudioPort::dump(fd, 4); 6828 6829 snprintf(buffer, SIZE, " - flags: 0x%04x\n", mFlags); 6830 result.append(buffer); 6831 snprintf(buffer, SIZE, " - devices:\n"); 6832 result.append(buffer); 6833 write(fd, result.string(), result.size()); 6834 for (size_t i = 0; i < mSupportedDevices.size(); i++) { 6835 mSupportedDevices[i]->dump(fd, 6, i); 6836 } 6837} 6838 6839void AudioPolicyManager::IOProfile::log() 6840{ 6841 const size_t SIZE = 256; 6842 char buffer[SIZE]; 6843 String8 result; 6844 6845 ALOGV(" - sampling rates: "); 6846 for (size_t i = 0; i < mSamplingRates.size(); i++) { 6847 ALOGV(" %d", mSamplingRates[i]); 6848 } 6849 6850 ALOGV(" - channel masks: "); 6851 for (size_t i = 0; i < mChannelMasks.size(); i++) { 6852 ALOGV(" 0x%04x", mChannelMasks[i]); 6853 } 6854 6855 ALOGV(" - formats: "); 6856 for (size_t i = 0; i < mFormats.size(); i++) { 6857 ALOGV(" 0x%08x", mFormats[i]); 6858 } 6859 6860 ALOGV(" - devices: 0x%04x\n", mSupportedDevices.types()); 6861 ALOGV(" - flags: 0x%04x\n", mFlags); 6862} 6863 6864 6865// --- DeviceDescriptor implementation 6866 6867 6868AudioPolicyManager::DeviceDescriptor::DeviceDescriptor(const String8& name, audio_devices_t type) : 6869 AudioPort(name, AUDIO_PORT_TYPE_DEVICE, 6870 audio_is_output_device(type) ? AUDIO_PORT_ROLE_SINK : 6871 AUDIO_PORT_ROLE_SOURCE, 6872 NULL), 6873 mDeviceType(type), mAddress(""), mId(0) 6874{ 6875 if (mGains.size() > 0) { 6876 mGains[0]->getDefaultConfig(&mGain); 6877 } 6878} 6879 6880bool AudioPolicyManager::DeviceDescriptor::equals(const sp<DeviceDescriptor>& other) const 6881{ 6882 // Devices are considered equal if they: 6883 // - are of the same type (a device type cannot be AUDIO_DEVICE_NONE) 6884 // - have the same address or one device does not specify the address 6885 // - have the same channel mask or one device does not specify the channel mask 6886 return (mDeviceType == other->mDeviceType) && 6887 (mAddress == "" || other->mAddress == "" || mAddress == other->mAddress) && 6888 (mChannelMask == 0 || other->mChannelMask == 0 || 6889 mChannelMask == other->mChannelMask); 6890} 6891 6892void AudioPolicyManager::DeviceVector::refreshTypes() 6893{ 6894 mDeviceTypes = AUDIO_DEVICE_NONE; 6895 for(size_t i = 0; i < size(); i++) { 6896 mDeviceTypes |= itemAt(i)->mDeviceType; 6897 } 6898 ALOGV("DeviceVector::refreshTypes() mDeviceTypes %08x", mDeviceTypes); 6899} 6900 6901ssize_t AudioPolicyManager::DeviceVector::indexOf(const sp<DeviceDescriptor>& item) const 6902{ 6903 for(size_t i = 0; i < size(); i++) { 6904 if (item->equals(itemAt(i))) { 6905 return i; 6906 } 6907 } 6908 return -1; 6909} 6910 6911ssize_t AudioPolicyManager::DeviceVector::add(const sp<DeviceDescriptor>& item) 6912{ 6913 ssize_t ret = indexOf(item); 6914 6915 if (ret < 0) { 6916 ret = SortedVector::add(item); 6917 if (ret >= 0) { 6918 refreshTypes(); 6919 } 6920 } else { 6921 ALOGW("DeviceVector::add device %08x already in", item->mDeviceType); 6922 ret = -1; 6923 } 6924 return ret; 6925} 6926 6927ssize_t AudioPolicyManager::DeviceVector::remove(const sp<DeviceDescriptor>& item) 6928{ 6929 size_t i; 6930 ssize_t ret = indexOf(item); 6931 6932 if (ret < 0) { 6933 ALOGW("DeviceVector::remove device %08x not in", item->mDeviceType); 6934 } else { 6935 ret = SortedVector::removeAt(ret); 6936 if (ret >= 0) { 6937 refreshTypes(); 6938 } 6939 } 6940 return ret; 6941} 6942 6943void AudioPolicyManager::DeviceVector::loadDevicesFromType(audio_devices_t types) 6944{ 6945 DeviceVector deviceList; 6946 6947 uint32_t role_bit = AUDIO_DEVICE_BIT_IN & types; 6948 types &= ~role_bit; 6949 6950 while (types) { 6951 uint32_t i = 31 - __builtin_clz(types); 6952 uint32_t type = 1 << i; 6953 types &= ~type; 6954 add(new DeviceDescriptor(String8(""), type | role_bit)); 6955 } 6956} 6957 6958void AudioPolicyManager::DeviceVector::loadDevicesFromName(char *name, 6959 const DeviceVector& declaredDevices) 6960{ 6961 char *devName = strtok(name, "|"); 6962 while (devName != NULL) { 6963 if (strlen(devName) != 0) { 6964 audio_devices_t type = stringToEnum(sDeviceNameToEnumTable, 6965 ARRAY_SIZE(sDeviceNameToEnumTable), 6966 devName); 6967 if (type != AUDIO_DEVICE_NONE) { 6968 sp<DeviceDescriptor> dev = new DeviceDescriptor(String8(""), type); 6969 if (type == AUDIO_DEVICE_IN_REMOTE_SUBMIX) { 6970 dev->mAddress = String8("0"); 6971 } 6972 add(dev); 6973 } else { 6974 sp<DeviceDescriptor> deviceDesc = 6975 declaredDevices.getDeviceFromName(String8(devName)); 6976 if (deviceDesc != 0) { 6977 add(deviceDesc); 6978 } 6979 } 6980 } 6981 devName = strtok(NULL, "|"); 6982 } 6983} 6984 6985sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDevice( 6986 audio_devices_t type, String8 address) const 6987{ 6988 sp<DeviceDescriptor> device; 6989 for (size_t i = 0; i < size(); i++) { 6990 if (itemAt(i)->mDeviceType == type) { 6991 device = itemAt(i); 6992 if (itemAt(i)->mAddress = address) { 6993 break; 6994 } 6995 } 6996 } 6997 ALOGV("DeviceVector::getDevice() for type %d address %s found %p", 6998 type, address.string(), device.get()); 6999 return device; 7000} 7001 7002sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDeviceFromId( 7003 audio_port_handle_t id) const 7004{ 7005 sp<DeviceDescriptor> device; 7006 for (size_t i = 0; i < size(); i++) { 7007 ALOGV("DeviceVector::getDeviceFromId(%d) itemAt(%zu)->mId %d", id, i, itemAt(i)->mId); 7008 if (itemAt(i)->mId == id) { 7009 device = itemAt(i); 7010 break; 7011 } 7012 } 7013 return device; 7014} 7015 7016AudioPolicyManager::DeviceVector AudioPolicyManager::DeviceVector::getDevicesFromType( 7017 audio_devices_t type) const 7018{ 7019 DeviceVector devices; 7020 for (size_t i = 0; (i < size()) && (type != AUDIO_DEVICE_NONE); i++) { 7021 if (itemAt(i)->mDeviceType & type & ~AUDIO_DEVICE_BIT_IN) { 7022 devices.add(itemAt(i)); 7023 type &= ~itemAt(i)->mDeviceType; 7024 ALOGV("DeviceVector::getDevicesFromType() for type %x found %p", 7025 itemAt(i)->mDeviceType, itemAt(i).get()); 7026 } 7027 } 7028 return devices; 7029} 7030 7031AudioPolicyManager::DeviceVector AudioPolicyManager::DeviceVector::getDevicesFromTypeAddr( 7032 audio_devices_t type, String8 address) const 7033{ 7034 DeviceVector devices; 7035 //ALOGV(" looking for device=%x, addr=%s", type, address.string()); 7036 for (size_t i = 0; i < size(); i++) { 7037 //ALOGV(" at i=%d: device=%x, addr=%s", 7038 // i, itemAt(i)->mDeviceType, itemAt(i)->mAddress.string()); 7039 if (itemAt(i)->mDeviceType == type) { 7040 if (itemAt(i)->mAddress == address) { 7041 //ALOGV(" found matching address %s", address.string()); 7042 devices.add(itemAt(i)); 7043 } 7044 } 7045 } 7046 return devices; 7047} 7048 7049sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDeviceFromName( 7050 const String8& name) const 7051{ 7052 sp<DeviceDescriptor> device; 7053 for (size_t i = 0; i < size(); i++) { 7054 if (itemAt(i)->mName == name) { 7055 device = itemAt(i); 7056 break; 7057 } 7058 } 7059 return device; 7060} 7061 7062void AudioPolicyManager::DeviceDescriptor::toAudioPortConfig( 7063 struct audio_port_config *dstConfig, 7064 const struct audio_port_config *srcConfig) const 7065{ 7066 dstConfig->config_mask = AUDIO_PORT_CONFIG_CHANNEL_MASK|AUDIO_PORT_CONFIG_GAIN; 7067 if (srcConfig != NULL) { 7068 dstConfig->config_mask |= srcConfig->config_mask; 7069 } 7070 7071 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 7072 7073 dstConfig->id = mId; 7074 dstConfig->role = audio_is_output_device(mDeviceType) ? 7075 AUDIO_PORT_ROLE_SINK : AUDIO_PORT_ROLE_SOURCE; 7076 dstConfig->type = AUDIO_PORT_TYPE_DEVICE; 7077 dstConfig->ext.device.type = mDeviceType; 7078 dstConfig->ext.device.hw_module = mModule->mHandle; 7079 strncpy(dstConfig->ext.device.address, mAddress.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN); 7080} 7081 7082void AudioPolicyManager::DeviceDescriptor::toAudioPort(struct audio_port *port) const 7083{ 7084 ALOGV("DeviceDescriptor::toAudioPort() handle %d type %x", mId, mDeviceType); 7085 AudioPort::toAudioPort(port); 7086 port->id = mId; 7087 toAudioPortConfig(&port->active_config); 7088 port->ext.device.type = mDeviceType; 7089 port->ext.device.hw_module = mModule->mHandle; 7090 strncpy(port->ext.device.address, mAddress.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN); 7091} 7092 7093status_t AudioPolicyManager::DeviceDescriptor::dump(int fd, int spaces, int index) const 7094{ 7095 const size_t SIZE = 256; 7096 char buffer[SIZE]; 7097 String8 result; 7098 7099 snprintf(buffer, SIZE, "%*sDevice %d:\n", spaces, "", index+1); 7100 result.append(buffer); 7101 if (mId != 0) { 7102 snprintf(buffer, SIZE, "%*s- id: %2d\n", spaces, "", mId); 7103 result.append(buffer); 7104 } 7105 snprintf(buffer, SIZE, "%*s- type: %-48s\n", spaces, "", 7106 enumToString(sDeviceNameToEnumTable, 7107 ARRAY_SIZE(sDeviceNameToEnumTable), 7108 mDeviceType)); 7109 result.append(buffer); 7110 if (mAddress.size() != 0) { 7111 snprintf(buffer, SIZE, "%*s- address: %-32s\n", spaces, "", mAddress.string()); 7112 result.append(buffer); 7113 } 7114 write(fd, result.string(), result.size()); 7115 AudioPort::dump(fd, spaces); 7116 7117 return NO_ERROR; 7118} 7119 7120status_t AudioPolicyManager::AudioPatch::dump(int fd, int spaces, int index) const 7121{ 7122 const size_t SIZE = 256; 7123 char buffer[SIZE]; 7124 String8 result; 7125 7126 7127 snprintf(buffer, SIZE, "%*sAudio patch %d:\n", spaces, "", index+1); 7128 result.append(buffer); 7129 snprintf(buffer, SIZE, "%*s- handle: %2d\n", spaces, "", mHandle); 7130 result.append(buffer); 7131 snprintf(buffer, SIZE, "%*s- audio flinger handle: %2d\n", spaces, "", mAfPatchHandle); 7132 result.append(buffer); 7133 snprintf(buffer, SIZE, "%*s- owner uid: %2d\n", spaces, "", mUid); 7134 result.append(buffer); 7135 snprintf(buffer, SIZE, "%*s- %d sources:\n", spaces, "", mPatch.num_sources); 7136 result.append(buffer); 7137 for (size_t i = 0; i < mPatch.num_sources; i++) { 7138 if (mPatch.sources[i].type == AUDIO_PORT_TYPE_DEVICE) { 7139 snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "", 7140 mPatch.sources[i].id, enumToString(sDeviceNameToEnumTable, 7141 ARRAY_SIZE(sDeviceNameToEnumTable), 7142 mPatch.sources[i].ext.device.type)); 7143 } else { 7144 snprintf(buffer, SIZE, "%*s- Mix ID %d I/O handle %d\n", spaces + 2, "", 7145 mPatch.sources[i].id, mPatch.sources[i].ext.mix.handle); 7146 } 7147 result.append(buffer); 7148 } 7149 snprintf(buffer, SIZE, "%*s- %d sinks:\n", spaces, "", mPatch.num_sinks); 7150 result.append(buffer); 7151 for (size_t i = 0; i < mPatch.num_sinks; i++) { 7152 if (mPatch.sinks[i].type == AUDIO_PORT_TYPE_DEVICE) { 7153 snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "", 7154 mPatch.sinks[i].id, enumToString(sDeviceNameToEnumTable, 7155 ARRAY_SIZE(sDeviceNameToEnumTable), 7156 mPatch.sinks[i].ext.device.type)); 7157 } else { 7158 snprintf(buffer, SIZE, "%*s- Mix ID %d I/O handle %d\n", spaces + 2, "", 7159 mPatch.sinks[i].id, mPatch.sinks[i].ext.mix.handle); 7160 } 7161 result.append(buffer); 7162 } 7163 7164 write(fd, result.string(), result.size()); 7165 return NO_ERROR; 7166} 7167 7168// --- audio_policy.conf file parsing 7169 7170uint32_t AudioPolicyManager::parseOutputFlagNames(char *name) 7171{ 7172 uint32_t flag = 0; 7173 7174 // it is OK to cast name to non const here as we are not going to use it after 7175 // strtok() modifies it 7176 char *flagName = strtok(name, "|"); 7177 while (flagName != NULL) { 7178 if (strlen(flagName) != 0) { 7179 flag |= stringToEnum(sOutputFlagNameToEnumTable, 7180 ARRAY_SIZE(sOutputFlagNameToEnumTable), 7181 flagName); 7182 } 7183 flagName = strtok(NULL, "|"); 7184 } 7185 //force direct flag if offload flag is set: offloading implies a direct output stream 7186 // and all common behaviors are driven by checking only the direct flag 7187 // this should normally be set appropriately in the policy configuration file 7188 if ((flag & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 7189 flag |= AUDIO_OUTPUT_FLAG_DIRECT; 7190 } 7191 7192 return flag; 7193} 7194 7195uint32_t AudioPolicyManager::parseInputFlagNames(char *name) 7196{ 7197 uint32_t flag = 0; 7198 7199 // it is OK to cast name to non const here as we are not going to use it after 7200 // strtok() modifies it 7201 char *flagName = strtok(name, "|"); 7202 while (flagName != NULL) { 7203 if (strlen(flagName) != 0) { 7204 flag |= stringToEnum(sInputFlagNameToEnumTable, 7205 ARRAY_SIZE(sInputFlagNameToEnumTable), 7206 flagName); 7207 } 7208 flagName = strtok(NULL, "|"); 7209 } 7210 return flag; 7211} 7212 7213audio_devices_t AudioPolicyManager::parseDeviceNames(char *name) 7214{ 7215 uint32_t device = 0; 7216 7217 char *devName = strtok(name, "|"); 7218 while (devName != NULL) { 7219 if (strlen(devName) != 0) { 7220 device |= stringToEnum(sDeviceNameToEnumTable, 7221 ARRAY_SIZE(sDeviceNameToEnumTable), 7222 devName); 7223 } 7224 devName = strtok(NULL, "|"); 7225 } 7226 return device; 7227} 7228 7229void AudioPolicyManager::loadHwModule(cnode *root) 7230{ 7231 status_t status = NAME_NOT_FOUND; 7232 cnode *node; 7233 sp<HwModule> module = new HwModule(root->name); 7234 7235 node = config_find(root, DEVICES_TAG); 7236 if (node != NULL) { 7237 node = node->first_child; 7238 while (node) { 7239 ALOGV("loadHwModule() loading device %s", node->name); 7240 status_t tmpStatus = module->loadDevice(node); 7241 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 7242 status = tmpStatus; 7243 } 7244 node = node->next; 7245 } 7246 } 7247 node = config_find(root, OUTPUTS_TAG); 7248 if (node != NULL) { 7249 node = node->first_child; 7250 while (node) { 7251 ALOGV("loadHwModule() loading output %s", node->name); 7252 status_t tmpStatus = module->loadOutput(node); 7253 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 7254 status = tmpStatus; 7255 } 7256 node = node->next; 7257 } 7258 } 7259 node = config_find(root, INPUTS_TAG); 7260 if (node != NULL) { 7261 node = node->first_child; 7262 while (node) { 7263 ALOGV("loadHwModule() loading input %s", node->name); 7264 status_t tmpStatus = module->loadInput(node); 7265 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 7266 status = tmpStatus; 7267 } 7268 node = node->next; 7269 } 7270 } 7271 loadGlobalConfig(root, module); 7272 7273 if (status == NO_ERROR) { 7274 mHwModules.add(module); 7275 } 7276} 7277 7278void AudioPolicyManager::loadHwModules(cnode *root) 7279{ 7280 cnode *node = config_find(root, AUDIO_HW_MODULE_TAG); 7281 if (node == NULL) { 7282 return; 7283 } 7284 7285 node = node->first_child; 7286 while (node) { 7287 ALOGV("loadHwModules() loading module %s", node->name); 7288 loadHwModule(node); 7289 node = node->next; 7290 } 7291} 7292 7293void AudioPolicyManager::loadGlobalConfig(cnode *root, const sp<HwModule>& module) 7294{ 7295 cnode *node = config_find(root, GLOBAL_CONFIG_TAG); 7296 7297 if (node == NULL) { 7298 return; 7299 } 7300 DeviceVector declaredDevices; 7301 if (module != NULL) { 7302 declaredDevices = module->mDeclaredDevices; 7303 } 7304 7305 node = node->first_child; 7306 while (node) { 7307 if (strcmp(ATTACHED_OUTPUT_DEVICES_TAG, node->name) == 0) { 7308 mAvailableOutputDevices.loadDevicesFromName((char *)node->value, 7309 declaredDevices); 7310 ALOGV("loadGlobalConfig() Attached Output Devices %08x", 7311 mAvailableOutputDevices.types()); 7312 } else if (strcmp(DEFAULT_OUTPUT_DEVICE_TAG, node->name) == 0) { 7313 audio_devices_t device = (audio_devices_t)stringToEnum(sDeviceNameToEnumTable, 7314 ARRAY_SIZE(sDeviceNameToEnumTable), 7315 (char *)node->value); 7316 if (device != AUDIO_DEVICE_NONE) { 7317 mDefaultOutputDevice = new DeviceDescriptor(String8(""), device); 7318 } else { 7319 ALOGW("loadGlobalConfig() default device not specified"); 7320 } 7321 ALOGV("loadGlobalConfig() mDefaultOutputDevice %08x", mDefaultOutputDevice->mDeviceType); 7322 } else if (strcmp(ATTACHED_INPUT_DEVICES_TAG, node->name) == 0) { 7323 mAvailableInputDevices.loadDevicesFromName((char *)node->value, 7324 declaredDevices); 7325 ALOGV("loadGlobalConfig() Available InputDevices %08x", mAvailableInputDevices.types()); 7326 } else if (strcmp(SPEAKER_DRC_ENABLED_TAG, node->name) == 0) { 7327 mSpeakerDrcEnabled = stringToBool((char *)node->value); 7328 ALOGV("loadGlobalConfig() mSpeakerDrcEnabled = %d", mSpeakerDrcEnabled); 7329 } else if (strcmp(AUDIO_HAL_VERSION_TAG, node->name) == 0) { 7330 uint32_t major, minor; 7331 sscanf((char *)node->value, "%u.%u", &major, &minor); 7332 module->mHalVersion = HARDWARE_DEVICE_API_VERSION(major, minor); 7333 ALOGV("loadGlobalConfig() mHalVersion = %04x major %u minor %u", 7334 module->mHalVersion, major, minor); 7335 } 7336 node = node->next; 7337 } 7338} 7339 7340status_t AudioPolicyManager::loadAudioPolicyConfig(const char *path) 7341{ 7342 cnode *root; 7343 char *data; 7344 7345 data = (char *)load_file(path, NULL); 7346 if (data == NULL) { 7347 return -ENODEV; 7348 } 7349 root = config_node("", ""); 7350 config_load(root, data); 7351 7352 loadHwModules(root); 7353 // legacy audio_policy.conf files have one global_configuration section 7354 loadGlobalConfig(root, getModuleFromName(AUDIO_HARDWARE_MODULE_ID_PRIMARY)); 7355 config_free(root); 7356 free(root); 7357 free(data); 7358 7359 ALOGI("loadAudioPolicyConfig() loaded %s\n", path); 7360 7361 return NO_ERROR; 7362} 7363 7364void AudioPolicyManager::defaultAudioPolicyConfig(void) 7365{ 7366 sp<HwModule> module; 7367 sp<IOProfile> profile; 7368 sp<DeviceDescriptor> defaultInputDevice = new DeviceDescriptor(String8(""), 7369 AUDIO_DEVICE_IN_BUILTIN_MIC); 7370 mAvailableOutputDevices.add(mDefaultOutputDevice); 7371 mAvailableInputDevices.add(defaultInputDevice); 7372 7373 module = new HwModule("primary"); 7374 7375 profile = new IOProfile(String8("primary"), AUDIO_PORT_ROLE_SOURCE, module); 7376 profile->mSamplingRates.add(44100); 7377 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 7378 profile->mChannelMasks.add(AUDIO_CHANNEL_OUT_STEREO); 7379 profile->mSupportedDevices.add(mDefaultOutputDevice); 7380 profile->mFlags = AUDIO_OUTPUT_FLAG_PRIMARY; 7381 module->mOutputProfiles.add(profile); 7382 7383 profile = new IOProfile(String8("primary"), AUDIO_PORT_ROLE_SINK, module); 7384 profile->mSamplingRates.add(8000); 7385 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 7386 profile->mChannelMasks.add(AUDIO_CHANNEL_IN_MONO); 7387 profile->mSupportedDevices.add(defaultInputDevice); 7388 module->mInputProfiles.add(profile); 7389 7390 mHwModules.add(module); 7391} 7392 7393audio_stream_type_t AudioPolicyManager::streamTypefromAttributesInt(const audio_attributes_t *attr) 7394{ 7395 // flags to stream type mapping 7396 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 7397 return AUDIO_STREAM_ENFORCED_AUDIBLE; 7398 } 7399 if ((attr->flags & AUDIO_FLAG_SCO) == AUDIO_FLAG_SCO) { 7400 return AUDIO_STREAM_BLUETOOTH_SCO; 7401 } 7402 7403 // usage to stream type mapping 7404 switch (attr->usage) { 7405 case AUDIO_USAGE_MEDIA: 7406 case AUDIO_USAGE_GAME: 7407 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 7408 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 7409 return AUDIO_STREAM_MUSIC; 7410 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 7411 return AUDIO_STREAM_SYSTEM; 7412 case AUDIO_USAGE_VOICE_COMMUNICATION: 7413 return AUDIO_STREAM_VOICE_CALL; 7414 7415 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 7416 return AUDIO_STREAM_DTMF; 7417 7418 case AUDIO_USAGE_ALARM: 7419 return AUDIO_STREAM_ALARM; 7420 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 7421 return AUDIO_STREAM_RING; 7422 7423 case AUDIO_USAGE_NOTIFICATION: 7424 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 7425 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 7426 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 7427 case AUDIO_USAGE_NOTIFICATION_EVENT: 7428 return AUDIO_STREAM_NOTIFICATION; 7429 7430 case AUDIO_USAGE_UNKNOWN: 7431 default: 7432 return AUDIO_STREAM_MUSIC; 7433 } 7434} 7435}; // namespace android 7436