AudioPolicyManager.cpp revision a1d525fbf2c1e0b2c61e5d29f338b0a0d8823436
1/* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#define LOG_TAG "AudioPolicyManager" 18//#define LOG_NDEBUG 0 19 20//#define VERY_VERBOSE_LOGGING 21#ifdef VERY_VERBOSE_LOGGING 22#define ALOGVV ALOGV 23#else 24#define ALOGVV(a...) do { } while(0) 25#endif 26 27// A device mask for all audio input devices that are considered "virtual" when evaluating 28// active inputs in getActiveInput() 29#define APM_AUDIO_IN_DEVICE_VIRTUAL_ALL (AUDIO_DEVICE_IN_REMOTE_SUBMIX|AUDIO_DEVICE_IN_FM_TUNER) 30// A device mask for all audio output devices that are considered "remote" when evaluating 31// active output devices in isStreamActiveRemotely() 32#define APM_AUDIO_OUT_DEVICE_REMOTE_ALL AUDIO_DEVICE_OUT_REMOTE_SUBMIX 33// A device mask for all audio input and output devices where matching inputs/outputs on device 34// type alone is not enough: the address must match too 35#define APM_AUDIO_DEVICE_MATCH_ADDRESS_ALL (AUDIO_DEVICE_IN_REMOTE_SUBMIX | \ 36 AUDIO_DEVICE_OUT_REMOTE_SUBMIX) 37 38#include <inttypes.h> 39#include <math.h> 40 41#include <cutils/properties.h> 42#include <utils/Log.h> 43#include <hardware/audio.h> 44#include <hardware/audio_effect.h> 45#include <media/AudioParameter.h> 46#include <media/AudioPolicyHelper.h> 47#include <soundtrigger/SoundTrigger.h> 48#include "AudioPolicyManager.h" 49#include "audio_policy_conf.h" 50 51namespace android { 52 53// ---------------------------------------------------------------------------- 54// Definitions for audio_policy.conf file parsing 55// ---------------------------------------------------------------------------- 56 57struct StringToEnum { 58 const char *name; 59 uint32_t value; 60}; 61 62#define STRING_TO_ENUM(string) { #string, string } 63#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) 64 65const StringToEnum sDeviceNameToEnumTable[] = { 66 STRING_TO_ENUM(AUDIO_DEVICE_OUT_EARPIECE), 67 STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPEAKER), 68 STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPEAKER_SAFE), 69 STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADSET), 70 STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADPHONE), 71 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO), 72 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET), 73 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT), 74 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_SCO), 75 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP), 76 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES), 77 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER), 78 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_A2DP), 79 STRING_TO_ENUM(AUDIO_DEVICE_OUT_AUX_DIGITAL), 80 STRING_TO_ENUM(AUDIO_DEVICE_OUT_HDMI), 81 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET), 82 STRING_TO_ENUM(AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET), 83 STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_ACCESSORY), 84 STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_DEVICE), 85 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_USB), 86 STRING_TO_ENUM(AUDIO_DEVICE_OUT_REMOTE_SUBMIX), 87 STRING_TO_ENUM(AUDIO_DEVICE_OUT_TELEPHONY_TX), 88 STRING_TO_ENUM(AUDIO_DEVICE_OUT_LINE), 89 STRING_TO_ENUM(AUDIO_DEVICE_OUT_HDMI_ARC), 90 STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPDIF), 91 STRING_TO_ENUM(AUDIO_DEVICE_OUT_FM), 92 STRING_TO_ENUM(AUDIO_DEVICE_OUT_AUX_LINE), 93 STRING_TO_ENUM(AUDIO_DEVICE_IN_AMBIENT), 94 STRING_TO_ENUM(AUDIO_DEVICE_IN_BUILTIN_MIC), 95 STRING_TO_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET), 96 STRING_TO_ENUM(AUDIO_DEVICE_IN_ALL_SCO), 97 STRING_TO_ENUM(AUDIO_DEVICE_IN_WIRED_HEADSET), 98 STRING_TO_ENUM(AUDIO_DEVICE_IN_AUX_DIGITAL), 99 STRING_TO_ENUM(AUDIO_DEVICE_IN_HDMI), 100 STRING_TO_ENUM(AUDIO_DEVICE_IN_TELEPHONY_RX), 101 STRING_TO_ENUM(AUDIO_DEVICE_IN_VOICE_CALL), 102 STRING_TO_ENUM(AUDIO_DEVICE_IN_BACK_MIC), 103 STRING_TO_ENUM(AUDIO_DEVICE_IN_REMOTE_SUBMIX), 104 STRING_TO_ENUM(AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET), 105 STRING_TO_ENUM(AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET), 106 STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_ACCESSORY), 107 STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_DEVICE), 108 STRING_TO_ENUM(AUDIO_DEVICE_IN_FM_TUNER), 109 STRING_TO_ENUM(AUDIO_DEVICE_IN_TV_TUNER), 110 STRING_TO_ENUM(AUDIO_DEVICE_IN_LINE), 111 STRING_TO_ENUM(AUDIO_DEVICE_IN_SPDIF), 112 STRING_TO_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_A2DP), 113 STRING_TO_ENUM(AUDIO_DEVICE_IN_LOOPBACK), 114}; 115 116const StringToEnum sOutputFlagNameToEnumTable[] = { 117 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DIRECT), 118 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_PRIMARY), 119 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_FAST), 120 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DEEP_BUFFER), 121 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD), 122 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_NON_BLOCKING), 123 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_HW_AV_SYNC), 124}; 125 126const StringToEnum sInputFlagNameToEnumTable[] = { 127 STRING_TO_ENUM(AUDIO_INPUT_FLAG_FAST), 128 STRING_TO_ENUM(AUDIO_INPUT_FLAG_HW_HOTWORD), 129}; 130 131const StringToEnum sFormatNameToEnumTable[] = { 132 STRING_TO_ENUM(AUDIO_FORMAT_PCM_16_BIT), 133 STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_BIT), 134 STRING_TO_ENUM(AUDIO_FORMAT_PCM_32_BIT), 135 STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_24_BIT), 136 STRING_TO_ENUM(AUDIO_FORMAT_PCM_FLOAT), 137 STRING_TO_ENUM(AUDIO_FORMAT_PCM_24_BIT_PACKED), 138 STRING_TO_ENUM(AUDIO_FORMAT_MP3), 139 STRING_TO_ENUM(AUDIO_FORMAT_AAC), 140 STRING_TO_ENUM(AUDIO_FORMAT_AAC_MAIN), 141 STRING_TO_ENUM(AUDIO_FORMAT_AAC_LC), 142 STRING_TO_ENUM(AUDIO_FORMAT_AAC_SSR), 143 STRING_TO_ENUM(AUDIO_FORMAT_AAC_LTP), 144 STRING_TO_ENUM(AUDIO_FORMAT_AAC_HE_V1), 145 STRING_TO_ENUM(AUDIO_FORMAT_AAC_SCALABLE), 146 STRING_TO_ENUM(AUDIO_FORMAT_AAC_ERLC), 147 STRING_TO_ENUM(AUDIO_FORMAT_AAC_LD), 148 STRING_TO_ENUM(AUDIO_FORMAT_AAC_HE_V2), 149 STRING_TO_ENUM(AUDIO_FORMAT_AAC_ELD), 150 STRING_TO_ENUM(AUDIO_FORMAT_VORBIS), 151 STRING_TO_ENUM(AUDIO_FORMAT_HE_AAC_V1), 152 STRING_TO_ENUM(AUDIO_FORMAT_HE_AAC_V2), 153 STRING_TO_ENUM(AUDIO_FORMAT_OPUS), 154 STRING_TO_ENUM(AUDIO_FORMAT_AC3), 155 STRING_TO_ENUM(AUDIO_FORMAT_E_AC3), 156}; 157 158const StringToEnum sOutChannelsNameToEnumTable[] = { 159 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_MONO), 160 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_STEREO), 161 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_QUAD), 162 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_5POINT1), 163 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_7POINT1), 164}; 165 166const StringToEnum sInChannelsNameToEnumTable[] = { 167 STRING_TO_ENUM(AUDIO_CHANNEL_IN_MONO), 168 STRING_TO_ENUM(AUDIO_CHANNEL_IN_STEREO), 169 STRING_TO_ENUM(AUDIO_CHANNEL_IN_FRONT_BACK), 170}; 171 172const StringToEnum sGainModeNameToEnumTable[] = { 173 STRING_TO_ENUM(AUDIO_GAIN_MODE_JOINT), 174 STRING_TO_ENUM(AUDIO_GAIN_MODE_CHANNELS), 175 STRING_TO_ENUM(AUDIO_GAIN_MODE_RAMP), 176}; 177 178 179uint32_t AudioPolicyManager::stringToEnum(const struct StringToEnum *table, 180 size_t size, 181 const char *name) 182{ 183 for (size_t i = 0; i < size; i++) { 184 if (strcmp(table[i].name, name) == 0) { 185 ALOGV("stringToEnum() found %s", table[i].name); 186 return table[i].value; 187 } 188 } 189 return 0; 190} 191 192const char *AudioPolicyManager::enumToString(const struct StringToEnum *table, 193 size_t size, 194 uint32_t value) 195{ 196 for (size_t i = 0; i < size; i++) { 197 if (table[i].value == value) { 198 return table[i].name; 199 } 200 } 201 return ""; 202} 203 204bool AudioPolicyManager::stringToBool(const char *value) 205{ 206 return ((strcasecmp("true", value) == 0) || (strcmp("1", value) == 0)); 207} 208 209 210// ---------------------------------------------------------------------------- 211// AudioPolicyInterface implementation 212// ---------------------------------------------------------------------------- 213 214status_t AudioPolicyManager::setDeviceConnectionState(audio_devices_t device, 215 audio_policy_dev_state_t state, 216 const char *device_address) 217{ 218 return setDeviceConnectionStateInt(device, state, device_address); 219} 220 221status_t AudioPolicyManager::setDeviceConnectionStateInt(audio_devices_t device, 222 audio_policy_dev_state_t state, 223 const char *device_address) 224{ 225 ALOGV("setDeviceConnectionState() device: %x, state %d, address %s", 226 device, state, device_address != NULL ? device_address : ""); 227 228 // connect/disconnect only 1 device at a time 229 if (!audio_is_output_device(device) && !audio_is_input_device(device)) return BAD_VALUE; 230 231 sp<DeviceDescriptor> devDesc = getDeviceDescriptor(device, device_address); 232 233 // handle output devices 234 if (audio_is_output_device(device)) { 235 SortedVector <audio_io_handle_t> outputs; 236 237 ssize_t index = mAvailableOutputDevices.indexOf(devDesc); 238 239 // save a copy of the opened output descriptors before any output is opened or closed 240 // by checkOutputsForDevice(). This will be needed by checkOutputForAllStrategies() 241 mPreviousOutputs = mOutputs; 242 switch (state) 243 { 244 // handle output device connection 245 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: 246 if (index >= 0) { 247 ALOGW("setDeviceConnectionState() device already connected: %x", device); 248 return INVALID_OPERATION; 249 } 250 ALOGV("setDeviceConnectionState() connecting device %x", device); 251 252 // register new device as available 253 index = mAvailableOutputDevices.add(devDesc); 254 if (index >= 0) { 255 sp<HwModule> module = getModuleForDevice(device); 256 if (module == 0) { 257 ALOGD("setDeviceConnectionState() could not find HW module for device %08x", 258 device); 259 mAvailableOutputDevices.remove(devDesc); 260 return INVALID_OPERATION; 261 } 262 mAvailableOutputDevices[index]->mId = nextUniqueId(); 263 mAvailableOutputDevices[index]->mModule = module; 264 } else { 265 return NO_MEMORY; 266 } 267 268 if (checkOutputsForDevice(devDesc, state, outputs, devDesc->mAddress) != NO_ERROR) { 269 mAvailableOutputDevices.remove(devDesc); 270 return INVALID_OPERATION; 271 } 272 // outputs should never be empty here 273 ALOG_ASSERT(outputs.size() != 0, "setDeviceConnectionState():" 274 "checkOutputsForDevice() returned no outputs but status OK"); 275 ALOGV("setDeviceConnectionState() checkOutputsForDevice() returned %zu outputs", 276 outputs.size()); 277 break; 278 // handle output device disconnection 279 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 280 if (index < 0) { 281 ALOGW("setDeviceConnectionState() device not connected: %x", device); 282 return INVALID_OPERATION; 283 } 284 285 ALOGV("setDeviceConnectionState() disconnecting output device %x", device); 286 287 // Set Disconnect to HALs 288 AudioParameter param = AudioParameter(devDesc->mAddress); 289 param.addInt(String8(AUDIO_PARAMETER_DEVICE_DISCONNECT), device); 290 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 291 292 // remove device from available output devices 293 mAvailableOutputDevices.remove(devDesc); 294 295 checkOutputsForDevice(devDesc, state, outputs, devDesc->mAddress); 296 } break; 297 298 default: 299 ALOGE("setDeviceConnectionState() invalid state: %x", state); 300 return BAD_VALUE; 301 } 302 303 // checkA2dpSuspend must run before checkOutputForAllStrategies so that A2DP 304 // output is suspended before any tracks are moved to it 305 checkA2dpSuspend(); 306 checkOutputForAllStrategies(); 307 // outputs must be closed after checkOutputForAllStrategies() is executed 308 if (!outputs.isEmpty()) { 309 for (size_t i = 0; i < outputs.size(); i++) { 310 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 311 // close unused outputs after device disconnection or direct outputs that have been 312 // opened by checkOutputsForDevice() to query dynamic parameters 313 if ((state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) || 314 (((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) && 315 (desc->mDirectOpenCount == 0))) { 316 closeOutput(outputs[i]); 317 } 318 } 319 // check again after closing A2DP output to reset mA2dpSuspended if needed 320 checkA2dpSuspend(); 321 } 322 323 updateDevicesAndOutputs(); 324 if (mPhoneState == AUDIO_MODE_IN_CALL) { 325 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 326 updateCallRouting(newDevice); 327 } 328 for (size_t i = 0; i < mOutputs.size(); i++) { 329 audio_io_handle_t output = mOutputs.keyAt(i); 330 if ((mPhoneState != AUDIO_MODE_IN_CALL) || (output != mPrimaryOutput)) { 331 audio_devices_t newDevice = getNewOutputDevice(mOutputs.keyAt(i), 332 true /*fromCache*/); 333 // do not force device change on duplicated output because if device is 0, it will 334 // also force a device 0 for the two outputs it is duplicated to which may override 335 // a valid device selection on those outputs. 336 bool force = !mOutputs.valueAt(i)->isDuplicated() 337 && (!deviceDistinguishesOnAddress(device) 338 // always force when disconnecting (a non-duplicated device) 339 || (state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE)); 340 setOutputDevice(output, newDevice, force, 0); 341 } 342 } 343 344 mpClientInterface->onAudioPortListUpdate(); 345 return NO_ERROR; 346 } // end if is output device 347 348 // handle input devices 349 if (audio_is_input_device(device)) { 350 SortedVector <audio_io_handle_t> inputs; 351 352 ssize_t index = mAvailableInputDevices.indexOf(devDesc); 353 switch (state) 354 { 355 // handle input device connection 356 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: { 357 if (index >= 0) { 358 ALOGW("setDeviceConnectionState() device already connected: %d", device); 359 return INVALID_OPERATION; 360 } 361 sp<HwModule> module = getModuleForDevice(device); 362 if (module == NULL) { 363 ALOGW("setDeviceConnectionState(): could not find HW module for device %08x", 364 device); 365 return INVALID_OPERATION; 366 } 367 if (checkInputsForDevice(device, state, inputs, devDesc->mAddress) != NO_ERROR) { 368 return INVALID_OPERATION; 369 } 370 371 index = mAvailableInputDevices.add(devDesc); 372 if (index >= 0) { 373 mAvailableInputDevices[index]->mId = nextUniqueId(); 374 mAvailableInputDevices[index]->mModule = module; 375 } else { 376 return NO_MEMORY; 377 } 378 } break; 379 380 // handle input device disconnection 381 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 382 if (index < 0) { 383 ALOGW("setDeviceConnectionState() device not connected: %d", device); 384 return INVALID_OPERATION; 385 } 386 387 ALOGV("setDeviceConnectionState() disconnecting input device %x", device); 388 389 // Set Disconnect to HALs 390 AudioParameter param = AudioParameter(devDesc->mAddress); 391 param.addInt(String8(AUDIO_PARAMETER_DEVICE_DISCONNECT), device); 392 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 393 394 checkInputsForDevice(device, state, inputs, devDesc->mAddress); 395 mAvailableInputDevices.remove(devDesc); 396 397 } break; 398 399 default: 400 ALOGE("setDeviceConnectionState() invalid state: %x", state); 401 return BAD_VALUE; 402 } 403 404 closeAllInputs(); 405 406 if (mPhoneState == AUDIO_MODE_IN_CALL) { 407 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 408 updateCallRouting(newDevice); 409 } 410 411 mpClientInterface->onAudioPortListUpdate(); 412 return NO_ERROR; 413 } // end if is input device 414 415 ALOGW("setDeviceConnectionState() invalid device: %x", device); 416 return BAD_VALUE; 417} 418 419audio_policy_dev_state_t AudioPolicyManager::getDeviceConnectionState(audio_devices_t device, 420 const char *device_address) 421{ 422 sp<DeviceDescriptor> devDesc = getDeviceDescriptor(device, device_address); 423 DeviceVector *deviceVector; 424 425 if (audio_is_output_device(device)) { 426 deviceVector = &mAvailableOutputDevices; 427 } else if (audio_is_input_device(device)) { 428 deviceVector = &mAvailableInputDevices; 429 } else { 430 ALOGW("getDeviceConnectionState() invalid device type %08x", device); 431 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 432 } 433 434 ssize_t index = deviceVector->indexOf(devDesc); 435 if (index >= 0) { 436 return AUDIO_POLICY_DEVICE_STATE_AVAILABLE; 437 } else { 438 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 439 } 440} 441 442sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::getDeviceDescriptor( 443 const audio_devices_t device, 444 const char *device_address) 445{ 446 String8 address = (device_address == NULL) ? String8("") : String8(device_address); 447 // handle legacy remote submix case where the address was not always specified 448 if (deviceDistinguishesOnAddress(device) && (address.length() == 0)) { 449 address = String8("0"); 450 } 451 452 for (size_t i = 0; i < mHwModules.size(); i++) { 453 if (mHwModules[i]->mHandle == 0) { 454 continue; 455 } 456 DeviceVector deviceList = 457 mHwModules[i]->mDeclaredDevices.getDevicesFromTypeAddr(device, address); 458 if (!deviceList.isEmpty()) { 459 return deviceList.itemAt(0); 460 } 461 deviceList = mHwModules[i]->mDeclaredDevices.getDevicesFromType(device); 462 if (!deviceList.isEmpty()) { 463 return deviceList.itemAt(0); 464 } 465 } 466 467 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 468 devDesc->mAddress = address; 469 return devDesc; 470} 471 472void AudioPolicyManager::updateCallRouting(audio_devices_t rxDevice, int delayMs) 473{ 474 bool createTxPatch = false; 475 struct audio_patch patch; 476 patch.num_sources = 1; 477 patch.num_sinks = 1; 478 status_t status; 479 audio_patch_handle_t afPatchHandle; 480 DeviceVector deviceList; 481 482 audio_devices_t txDevice = getDeviceAndMixForInputSource(AUDIO_SOURCE_VOICE_COMMUNICATION); 483 ALOGV("updateCallRouting device rxDevice %08x txDevice %08x", rxDevice, txDevice); 484 485 // release existing RX patch if any 486 if (mCallRxPatch != 0) { 487 mpClientInterface->releaseAudioPatch(mCallRxPatch->mAfPatchHandle, 0); 488 mCallRxPatch.clear(); 489 } 490 // release TX patch if any 491 if (mCallTxPatch != 0) { 492 mpClientInterface->releaseAudioPatch(mCallTxPatch->mAfPatchHandle, 0); 493 mCallTxPatch.clear(); 494 } 495 496 // If the RX device is on the primary HW module, then use legacy routing method for voice calls 497 // via setOutputDevice() on primary output. 498 // Otherwise, create two audio patches for TX and RX path. 499 if (availablePrimaryOutputDevices() & rxDevice) { 500 setOutputDevice(mPrimaryOutput, rxDevice, true, delayMs); 501 // If the TX device is also on the primary HW module, setOutputDevice() will take care 502 // of it due to legacy implementation. If not, create a patch. 503 if ((availablePrimaryInputDevices() & txDevice & ~AUDIO_DEVICE_BIT_IN) 504 == AUDIO_DEVICE_NONE) { 505 createTxPatch = true; 506 } 507 } else { 508 // create RX path audio patch 509 deviceList = mAvailableOutputDevices.getDevicesFromType(rxDevice); 510 ALOG_ASSERT(!deviceList.isEmpty(), 511 "updateCallRouting() selected device not in output device list"); 512 sp<DeviceDescriptor> rxSinkDeviceDesc = deviceList.itemAt(0); 513 deviceList = mAvailableInputDevices.getDevicesFromType(AUDIO_DEVICE_IN_TELEPHONY_RX); 514 ALOG_ASSERT(!deviceList.isEmpty(), 515 "updateCallRouting() no telephony RX device"); 516 sp<DeviceDescriptor> rxSourceDeviceDesc = deviceList.itemAt(0); 517 518 rxSourceDeviceDesc->toAudioPortConfig(&patch.sources[0]); 519 rxSinkDeviceDesc->toAudioPortConfig(&patch.sinks[0]); 520 521 // request to reuse existing output stream if one is already opened to reach the RX device 522 SortedVector<audio_io_handle_t> outputs = 523 getOutputsForDevice(rxDevice, mOutputs); 524 audio_io_handle_t output = selectOutput(outputs, 525 AUDIO_OUTPUT_FLAG_NONE, 526 AUDIO_FORMAT_INVALID); 527 if (output != AUDIO_IO_HANDLE_NONE) { 528 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 529 ALOG_ASSERT(!outputDesc->isDuplicated(), 530 "updateCallRouting() RX device output is duplicated"); 531 outputDesc->toAudioPortConfig(&patch.sources[1]); 532 patch.num_sources = 2; 533 } 534 535 afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 536 status = mpClientInterface->createAudioPatch(&patch, &afPatchHandle, 0); 537 ALOGW_IF(status != NO_ERROR, "updateCallRouting() error %d creating RX audio patch", 538 status); 539 if (status == NO_ERROR) { 540 mCallRxPatch = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 541 &patch, mUidCached); 542 mCallRxPatch->mAfPatchHandle = afPatchHandle; 543 mCallRxPatch->mUid = mUidCached; 544 } 545 createTxPatch = true; 546 } 547 if (createTxPatch) { 548 549 struct audio_patch patch; 550 patch.num_sources = 1; 551 patch.num_sinks = 1; 552 deviceList = mAvailableInputDevices.getDevicesFromType(txDevice); 553 ALOG_ASSERT(!deviceList.isEmpty(), 554 "updateCallRouting() selected device not in input device list"); 555 sp<DeviceDescriptor> txSourceDeviceDesc = deviceList.itemAt(0); 556 txSourceDeviceDesc->toAudioPortConfig(&patch.sources[0]); 557 deviceList = mAvailableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_TELEPHONY_TX); 558 ALOG_ASSERT(!deviceList.isEmpty(), 559 "updateCallRouting() no telephony TX device"); 560 sp<DeviceDescriptor> txSinkDeviceDesc = deviceList.itemAt(0); 561 txSinkDeviceDesc->toAudioPortConfig(&patch.sinks[0]); 562 563 SortedVector<audio_io_handle_t> outputs = 564 getOutputsForDevice(AUDIO_DEVICE_OUT_TELEPHONY_TX, mOutputs); 565 audio_io_handle_t output = selectOutput(outputs, 566 AUDIO_OUTPUT_FLAG_NONE, 567 AUDIO_FORMAT_INVALID); 568 // request to reuse existing output stream if one is already opened to reach the TX 569 // path output device 570 if (output != AUDIO_IO_HANDLE_NONE) { 571 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 572 ALOG_ASSERT(!outputDesc->isDuplicated(), 573 "updateCallRouting() RX device output is duplicated"); 574 outputDesc->toAudioPortConfig(&patch.sources[1]); 575 patch.num_sources = 2; 576 } 577 578 afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 579 status = mpClientInterface->createAudioPatch(&patch, &afPatchHandle, 0); 580 ALOGW_IF(status != NO_ERROR, "setPhoneState() error %d creating TX audio patch", 581 status); 582 if (status == NO_ERROR) { 583 mCallTxPatch = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 584 &patch, mUidCached); 585 mCallTxPatch->mAfPatchHandle = afPatchHandle; 586 mCallTxPatch->mUid = mUidCached; 587 } 588 } 589} 590 591void AudioPolicyManager::setPhoneState(audio_mode_t state) 592{ 593 ALOGV("setPhoneState() state %d", state); 594 if (state < 0 || state >= AUDIO_MODE_CNT) { 595 ALOGW("setPhoneState() invalid state %d", state); 596 return; 597 } 598 599 if (state == mPhoneState ) { 600 ALOGW("setPhoneState() setting same state %d", state); 601 return; 602 } 603 604 // if leaving call state, handle special case of active streams 605 // pertaining to sonification strategy see handleIncallSonification() 606 if (isInCall()) { 607 ALOGV("setPhoneState() in call state management: new state is %d", state); 608 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 609 if (stream == AUDIO_STREAM_PATCH) { 610 continue; 611 } 612 handleIncallSonification((audio_stream_type_t)stream, false, true); 613 } 614 615 // force reevaluating accessibility routing when call starts 616 mpClientInterface->invalidateStream(AUDIO_STREAM_ACCESSIBILITY); 617 } 618 619 // store previous phone state for management of sonification strategy below 620 int oldState = mPhoneState; 621 mPhoneState = state; 622 bool force = false; 623 624 // are we entering or starting a call 625 if (!isStateInCall(oldState) && isStateInCall(state)) { 626 ALOGV(" Entering call in setPhoneState()"); 627 // force routing command to audio hardware when starting a call 628 // even if no device change is needed 629 force = true; 630 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 631 mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] = 632 sVolumeProfiles[AUDIO_STREAM_VOICE_CALL][j]; 633 } 634 } else if (isStateInCall(oldState) && !isStateInCall(state)) { 635 ALOGV(" Exiting call in setPhoneState()"); 636 // force routing command to audio hardware when exiting a call 637 // even if no device change is needed 638 force = true; 639 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 640 mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] = 641 sVolumeProfiles[AUDIO_STREAM_DTMF][j]; 642 } 643 } else if (isStateInCall(state) && (state != oldState)) { 644 ALOGV(" Switching between telephony and VoIP in setPhoneState()"); 645 // force routing command to audio hardware when switching between telephony and VoIP 646 // even if no device change is needed 647 force = true; 648 } 649 650 // check for device and output changes triggered by new phone state 651 checkA2dpSuspend(); 652 checkOutputForAllStrategies(); 653 updateDevicesAndOutputs(); 654 655 sp<AudioOutputDescriptor> hwOutputDesc = mOutputs.valueFor(mPrimaryOutput); 656 657 int delayMs = 0; 658 if (isStateInCall(state)) { 659 nsecs_t sysTime = systemTime(); 660 for (size_t i = 0; i < mOutputs.size(); i++) { 661 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 662 // mute media and sonification strategies and delay device switch by the largest 663 // latency of any output where either strategy is active. 664 // This avoid sending the ring tone or music tail into the earpiece or headset. 665 if ((desc->isStrategyActive(STRATEGY_MEDIA, 666 SONIFICATION_HEADSET_MUSIC_DELAY, 667 sysTime) || 668 desc->isStrategyActive(STRATEGY_SONIFICATION, 669 SONIFICATION_HEADSET_MUSIC_DELAY, 670 sysTime)) && 671 (delayMs < (int)desc->mLatency*2)) { 672 delayMs = desc->mLatency*2; 673 } 674 setStrategyMute(STRATEGY_MEDIA, true, mOutputs.keyAt(i)); 675 setStrategyMute(STRATEGY_MEDIA, false, mOutputs.keyAt(i), MUTE_TIME_MS, 676 getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/)); 677 setStrategyMute(STRATEGY_SONIFICATION, true, mOutputs.keyAt(i)); 678 setStrategyMute(STRATEGY_SONIFICATION, false, mOutputs.keyAt(i), MUTE_TIME_MS, 679 getDeviceForStrategy(STRATEGY_SONIFICATION, true /*fromCache*/)); 680 } 681 } 682 683 // Note that despite the fact that getNewOutputDevice() is called on the primary output, 684 // the device returned is not necessarily reachable via this output 685 audio_devices_t rxDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 686 // force routing command to audio hardware when ending call 687 // even if no device change is needed 688 if (isStateInCall(oldState) && rxDevice == AUDIO_DEVICE_NONE) { 689 rxDevice = hwOutputDesc->device(); 690 } 691 692 if (state == AUDIO_MODE_IN_CALL) { 693 updateCallRouting(rxDevice, delayMs); 694 } else if (oldState == AUDIO_MODE_IN_CALL) { 695 if (mCallRxPatch != 0) { 696 mpClientInterface->releaseAudioPatch(mCallRxPatch->mAfPatchHandle, 0); 697 mCallRxPatch.clear(); 698 } 699 if (mCallTxPatch != 0) { 700 mpClientInterface->releaseAudioPatch(mCallTxPatch->mAfPatchHandle, 0); 701 mCallTxPatch.clear(); 702 } 703 setOutputDevice(mPrimaryOutput, rxDevice, force, 0); 704 } else { 705 setOutputDevice(mPrimaryOutput, rxDevice, force, 0); 706 } 707 // if entering in call state, handle special case of active streams 708 // pertaining to sonification strategy see handleIncallSonification() 709 if (isStateInCall(state)) { 710 ALOGV("setPhoneState() in call state management: new state is %d", state); 711 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 712 if (stream == AUDIO_STREAM_PATCH) { 713 continue; 714 } 715 handleIncallSonification((audio_stream_type_t)stream, true, true); 716 } 717 } 718 719 // Flag that ringtone volume must be limited to music volume until we exit MODE_RINGTONE 720 if (state == AUDIO_MODE_RINGTONE && 721 isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY)) { 722 mLimitRingtoneVolume = true; 723 } else { 724 mLimitRingtoneVolume = false; 725 } 726} 727 728void AudioPolicyManager::setForceUse(audio_policy_force_use_t usage, 729 audio_policy_forced_cfg_t config) 730{ 731 ALOGV("setForceUse() usage %d, config %d, mPhoneState %d", usage, config, mPhoneState); 732 733 bool forceVolumeReeval = false; 734 switch(usage) { 735 case AUDIO_POLICY_FORCE_FOR_COMMUNICATION: 736 if (config != AUDIO_POLICY_FORCE_SPEAKER && config != AUDIO_POLICY_FORCE_BT_SCO && 737 config != AUDIO_POLICY_FORCE_NONE) { 738 ALOGW("setForceUse() invalid config %d for FOR_COMMUNICATION", config); 739 return; 740 } 741 forceVolumeReeval = true; 742 mForceUse[usage] = config; 743 break; 744 case AUDIO_POLICY_FORCE_FOR_MEDIA: 745 if (config != AUDIO_POLICY_FORCE_HEADPHONES && config != AUDIO_POLICY_FORCE_BT_A2DP && 746 config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 747 config != AUDIO_POLICY_FORCE_ANALOG_DOCK && 748 config != AUDIO_POLICY_FORCE_DIGITAL_DOCK && config != AUDIO_POLICY_FORCE_NONE && 749 config != AUDIO_POLICY_FORCE_NO_BT_A2DP && config != AUDIO_POLICY_FORCE_SPEAKER ) { 750 ALOGW("setForceUse() invalid config %d for FOR_MEDIA", config); 751 return; 752 } 753 mForceUse[usage] = config; 754 break; 755 case AUDIO_POLICY_FORCE_FOR_RECORD: 756 if (config != AUDIO_POLICY_FORCE_BT_SCO && config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 757 config != AUDIO_POLICY_FORCE_NONE) { 758 ALOGW("setForceUse() invalid config %d for FOR_RECORD", config); 759 return; 760 } 761 mForceUse[usage] = config; 762 break; 763 case AUDIO_POLICY_FORCE_FOR_DOCK: 764 if (config != AUDIO_POLICY_FORCE_NONE && config != AUDIO_POLICY_FORCE_BT_CAR_DOCK && 765 config != AUDIO_POLICY_FORCE_BT_DESK_DOCK && 766 config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 767 config != AUDIO_POLICY_FORCE_ANALOG_DOCK && 768 config != AUDIO_POLICY_FORCE_DIGITAL_DOCK) { 769 ALOGW("setForceUse() invalid config %d for FOR_DOCK", config); 770 } 771 forceVolumeReeval = true; 772 mForceUse[usage] = config; 773 break; 774 case AUDIO_POLICY_FORCE_FOR_SYSTEM: 775 if (config != AUDIO_POLICY_FORCE_NONE && 776 config != AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) { 777 ALOGW("setForceUse() invalid config %d for FOR_SYSTEM", config); 778 } 779 forceVolumeReeval = true; 780 mForceUse[usage] = config; 781 break; 782 case AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO: 783 if (config != AUDIO_POLICY_FORCE_NONE && 784 config != AUDIO_POLICY_FORCE_HDMI_SYSTEM_AUDIO_ENFORCED) { 785 ALOGW("setForceUse() invalid config %d forHDMI_SYSTEM_AUDIO", config); 786 } 787 mForceUse[usage] = config; 788 break; 789 default: 790 ALOGW("setForceUse() invalid usage %d", usage); 791 break; 792 } 793 794 // check for device and output changes triggered by new force usage 795 checkA2dpSuspend(); 796 checkOutputForAllStrategies(); 797 updateDevicesAndOutputs(); 798 if (mPhoneState == AUDIO_MODE_IN_CALL) { 799 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, true /*fromCache*/); 800 updateCallRouting(newDevice); 801 } 802 for (size_t i = 0; i < mOutputs.size(); i++) { 803 audio_io_handle_t output = mOutputs.keyAt(i); 804 audio_devices_t newDevice = getNewOutputDevice(output, true /*fromCache*/); 805 if ((mPhoneState != AUDIO_MODE_IN_CALL) || (output != mPrimaryOutput)) { 806 setOutputDevice(output, newDevice, (newDevice != AUDIO_DEVICE_NONE)); 807 } 808 if (forceVolumeReeval && (newDevice != AUDIO_DEVICE_NONE)) { 809 applyStreamVolumes(output, newDevice, 0, true); 810 } 811 } 812 813 audio_io_handle_t activeInput = getActiveInput(); 814 if (activeInput != 0) { 815 setInputDevice(activeInput, getNewInputDevice(activeInput)); 816 } 817 818} 819 820audio_policy_forced_cfg_t AudioPolicyManager::getForceUse(audio_policy_force_use_t usage) 821{ 822 return mForceUse[usage]; 823} 824 825void AudioPolicyManager::setSystemProperty(const char* property, const char* value) 826{ 827 ALOGV("setSystemProperty() property %s, value %s", property, value); 828} 829 830// Find a direct output profile compatible with the parameters passed, even if the input flags do 831// not explicitly request a direct output 832sp<AudioPolicyManager::IOProfile> AudioPolicyManager::getProfileForDirectOutput( 833 audio_devices_t device, 834 uint32_t samplingRate, 835 audio_format_t format, 836 audio_channel_mask_t channelMask, 837 audio_output_flags_t flags) 838{ 839 for (size_t i = 0; i < mHwModules.size(); i++) { 840 if (mHwModules[i]->mHandle == 0) { 841 continue; 842 } 843 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) { 844 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 845 bool found = profile->isCompatibleProfile(device, String8(""), samplingRate, 846 NULL /*updatedSamplingRate*/, format, channelMask, 847 flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD ? 848 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD : AUDIO_OUTPUT_FLAG_DIRECT); 849 if (found && (mAvailableOutputDevices.types() & profile->mSupportedDevices.types())) { 850 return profile; 851 } 852 } 853 } 854 return 0; 855} 856 857audio_io_handle_t AudioPolicyManager::getOutput(audio_stream_type_t stream, 858 uint32_t samplingRate, 859 audio_format_t format, 860 audio_channel_mask_t channelMask, 861 audio_output_flags_t flags, 862 const audio_offload_info_t *offloadInfo) 863{ 864 routing_strategy strategy = getStrategy(stream); 865 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 866 ALOGV("getOutput() device %d, stream %d, samplingRate %d, format %x, channelMask %x, flags %x", 867 device, stream, samplingRate, format, channelMask, flags); 868 869 return getOutputForDevice(device, AUDIO_SESSION_ALLOCATE, 870 stream, samplingRate,format, channelMask, 871 flags, offloadInfo); 872} 873 874status_t AudioPolicyManager::getOutputForAttr(const audio_attributes_t *attr, 875 audio_io_handle_t *output, 876 audio_session_t session, 877 audio_stream_type_t *stream, 878 uint32_t samplingRate, 879 audio_format_t format, 880 audio_channel_mask_t channelMask, 881 audio_output_flags_t flags, 882 const audio_offload_info_t *offloadInfo) 883{ 884 audio_attributes_t attributes; 885 if (attr != NULL) { 886 if (!isValidAttributes(attr)) { 887 ALOGE("getOutputForAttr() invalid attributes: usage=%d content=%d flags=0x%x tags=[%s]", 888 attr->usage, attr->content_type, attr->flags, 889 attr->tags); 890 return BAD_VALUE; 891 } 892 attributes = *attr; 893 } else { 894 if (*stream < AUDIO_STREAM_MIN || *stream >= AUDIO_STREAM_PUBLIC_CNT) { 895 ALOGE("getOutputForAttr(): invalid stream type"); 896 return BAD_VALUE; 897 } 898 stream_type_to_audio_attributes(*stream, &attributes); 899 } 900 901 for (size_t i = 0; i < mPolicyMixes.size(); i++) { 902 sp<AudioOutputDescriptor> desc; 903 if (mPolicyMixes[i]->mMix.mMixType == MIX_TYPE_PLAYERS) { 904 for (size_t j = 0; j < mPolicyMixes[i]->mMix.mCriteria.size(); j++) { 905 if ((RULE_MATCH_ATTRIBUTE_USAGE == mPolicyMixes[i]->mMix.mCriteria[j].mRule && 906 mPolicyMixes[i]->mMix.mCriteria[j].mAttr.mUsage == attributes.usage) || 907 (RULE_EXCLUDE_ATTRIBUTE_USAGE == mPolicyMixes[i]->mMix.mCriteria[j].mRule && 908 mPolicyMixes[i]->mMix.mCriteria[j].mAttr.mUsage != attributes.usage)) { 909 desc = mPolicyMixes[i]->mOutput; 910 break; 911 } 912 if (strncmp(attributes.tags, "addr=", strlen("addr=")) == 0 && 913 strncmp(attributes.tags + strlen("addr="), 914 mPolicyMixes[i]->mMix.mRegistrationId.string(), 915 AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - strlen("addr=") - 1) == 0) { 916 desc = mPolicyMixes[i]->mOutput; 917 break; 918 } 919 } 920 } else if (mPolicyMixes[i]->mMix.mMixType == MIX_TYPE_RECORDERS) { 921 if (attributes.usage == AUDIO_USAGE_VIRTUAL_SOURCE && 922 strncmp(attributes.tags, "addr=", strlen("addr=")) == 0 && 923 strncmp(attributes.tags + strlen("addr="), 924 mPolicyMixes[i]->mMix.mRegistrationId.string(), 925 AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - strlen("addr=") - 1) == 0) { 926 desc = mPolicyMixes[i]->mOutput; 927 } 928 } 929 if (desc != 0) { 930 if (!audio_is_linear_pcm(format)) { 931 return BAD_VALUE; 932 } 933 desc->mPolicyMix = &mPolicyMixes[i]->mMix; 934 *stream = streamTypefromAttributesInt(&attributes); 935 *output = desc->mIoHandle; 936 ALOGV("getOutputForAttr() returns output %d", *output); 937 return NO_ERROR; 938 } 939 } 940 if (attributes.usage == AUDIO_USAGE_VIRTUAL_SOURCE) { 941 ALOGW("getOutputForAttr() no policy mix found for usage AUDIO_USAGE_VIRTUAL_SOURCE"); 942 return BAD_VALUE; 943 } 944 945 ALOGV("getOutputForAttr() usage=%d, content=%d, tag=%s flags=%08x", 946 attributes.usage, attributes.content_type, attributes.tags, attributes.flags); 947 948 routing_strategy strategy = (routing_strategy) getStrategyForAttr(&attributes); 949 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 950 951 if ((attributes.flags & AUDIO_FLAG_HW_AV_SYNC) != 0) { 952 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_HW_AV_SYNC); 953 } 954 955 ALOGV("getOutputForAttr() device 0x%x, samplingRate %d, format %x, channelMask %x, flags %x", 956 device, samplingRate, format, channelMask, flags); 957 958 *stream = streamTypefromAttributesInt(&attributes); 959 *output = getOutputForDevice(device, session, *stream, 960 samplingRate, format, channelMask, 961 flags, offloadInfo); 962 if (*output == AUDIO_IO_HANDLE_NONE) { 963 return INVALID_OPERATION; 964 } 965 return NO_ERROR; 966} 967 968audio_io_handle_t AudioPolicyManager::getOutputForDevice( 969 audio_devices_t device, 970 audio_session_t session __unused, 971 audio_stream_type_t stream, 972 uint32_t samplingRate, 973 audio_format_t format, 974 audio_channel_mask_t channelMask, 975 audio_output_flags_t flags, 976 const audio_offload_info_t *offloadInfo) 977{ 978 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 979 uint32_t latency = 0; 980 status_t status; 981 982#ifdef AUDIO_POLICY_TEST 983 if (mCurOutput != 0) { 984 ALOGV("getOutput() test output mCurOutput %d, samplingRate %d, format %d, channelMask %x, mDirectOutput %d", 985 mCurOutput, mTestSamplingRate, mTestFormat, mTestChannels, mDirectOutput); 986 987 if (mTestOutputs[mCurOutput] == 0) { 988 ALOGV("getOutput() opening test output"); 989 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(NULL); 990 outputDesc->mDevice = mTestDevice; 991 outputDesc->mLatency = mTestLatencyMs; 992 outputDesc->mFlags = 993 (audio_output_flags_t)(mDirectOutput ? AUDIO_OUTPUT_FLAG_DIRECT : 0); 994 outputDesc->mRefCount[stream] = 0; 995 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 996 config.sample_rate = mTestSamplingRate; 997 config.channel_mask = mTestChannels; 998 config.format = mTestFormat; 999 if (offloadInfo != NULL) { 1000 config.offload_info = *offloadInfo; 1001 } 1002 status = mpClientInterface->openOutput(0, 1003 &mTestOutputs[mCurOutput], 1004 &config, 1005 &outputDesc->mDevice, 1006 String8(""), 1007 &outputDesc->mLatency, 1008 outputDesc->mFlags); 1009 if (status == NO_ERROR) { 1010 outputDesc->mSamplingRate = config.sample_rate; 1011 outputDesc->mFormat = config.format; 1012 outputDesc->mChannelMask = config.channel_mask; 1013 AudioParameter outputCmd = AudioParameter(); 1014 outputCmd.addInt(String8("set_id"),mCurOutput); 1015 mpClientInterface->setParameters(mTestOutputs[mCurOutput],outputCmd.toString()); 1016 addOutput(mTestOutputs[mCurOutput], outputDesc); 1017 } 1018 } 1019 return mTestOutputs[mCurOutput]; 1020 } 1021#endif //AUDIO_POLICY_TEST 1022 1023 // open a direct output if required by specified parameters 1024 //force direct flag if offload flag is set: offloading implies a direct output stream 1025 // and all common behaviors are driven by checking only the direct flag 1026 // this should normally be set appropriately in the policy configuration file 1027 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1028 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 1029 } 1030 if ((flags & AUDIO_OUTPUT_FLAG_HW_AV_SYNC) != 0) { 1031 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 1032 } 1033 // only allow deep buffering for music stream type 1034 if (stream != AUDIO_STREAM_MUSIC) { 1035 flags = (audio_output_flags_t)(flags &~AUDIO_OUTPUT_FLAG_DEEP_BUFFER); 1036 } 1037 1038 sp<IOProfile> profile; 1039 1040 // skip direct output selection if the request can obviously be attached to a mixed output 1041 // and not explicitly requested 1042 if (((flags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) && 1043 audio_is_linear_pcm(format) && samplingRate <= MAX_MIXER_SAMPLING_RATE && 1044 audio_channel_count_from_out_mask(channelMask) <= 2) { 1045 goto non_direct_output; 1046 } 1047 1048 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 1049 // creating an offloaded track and tearing it down immediately after start when audioflinger 1050 // detects there is an active non offloadable effect. 1051 // FIXME: We should check the audio session here but we do not have it in this context. 1052 // This may prevent offloading in rare situations where effects are left active by apps 1053 // in the background. 1054 1055 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) || 1056 !isNonOffloadableEffectEnabled()) { 1057 profile = getProfileForDirectOutput(device, 1058 samplingRate, 1059 format, 1060 channelMask, 1061 (audio_output_flags_t)flags); 1062 } 1063 1064 if (profile != 0) { 1065 sp<AudioOutputDescriptor> outputDesc = NULL; 1066 1067 for (size_t i = 0; i < mOutputs.size(); i++) { 1068 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1069 if (!desc->isDuplicated() && (profile == desc->mProfile)) { 1070 outputDesc = desc; 1071 // reuse direct output if currently open and configured with same parameters 1072 if ((samplingRate == outputDesc->mSamplingRate) && 1073 (format == outputDesc->mFormat) && 1074 (channelMask == outputDesc->mChannelMask)) { 1075 outputDesc->mDirectOpenCount++; 1076 ALOGV("getOutput() reusing direct output %d", mOutputs.keyAt(i)); 1077 return mOutputs.keyAt(i); 1078 } 1079 } 1080 } 1081 // close direct output if currently open and configured with different parameters 1082 if (outputDesc != NULL) { 1083 closeOutput(outputDesc->mIoHandle); 1084 } 1085 outputDesc = new AudioOutputDescriptor(profile); 1086 outputDesc->mDevice = device; 1087 outputDesc->mLatency = 0; 1088 outputDesc->mFlags =(audio_output_flags_t) (outputDesc->mFlags | flags); 1089 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 1090 config.sample_rate = samplingRate; 1091 config.channel_mask = channelMask; 1092 config.format = format; 1093 if (offloadInfo != NULL) { 1094 config.offload_info = *offloadInfo; 1095 } 1096 status = mpClientInterface->openOutput(profile->mModule->mHandle, 1097 &output, 1098 &config, 1099 &outputDesc->mDevice, 1100 String8(""), 1101 &outputDesc->mLatency, 1102 outputDesc->mFlags); 1103 1104 // only accept an output with the requested parameters 1105 if (status != NO_ERROR || 1106 (samplingRate != 0 && samplingRate != config.sample_rate) || 1107 (format != AUDIO_FORMAT_DEFAULT && format != config.format) || 1108 (channelMask != 0 && channelMask != config.channel_mask)) { 1109 ALOGV("getOutput() failed opening direct output: output %d samplingRate %d %d," 1110 "format %d %d, channelMask %04x %04x", output, samplingRate, 1111 outputDesc->mSamplingRate, format, outputDesc->mFormat, channelMask, 1112 outputDesc->mChannelMask); 1113 if (output != AUDIO_IO_HANDLE_NONE) { 1114 mpClientInterface->closeOutput(output); 1115 } 1116 return AUDIO_IO_HANDLE_NONE; 1117 } 1118 outputDesc->mSamplingRate = config.sample_rate; 1119 outputDesc->mChannelMask = config.channel_mask; 1120 outputDesc->mFormat = config.format; 1121 outputDesc->mRefCount[stream] = 0; 1122 outputDesc->mStopTime[stream] = 0; 1123 outputDesc->mDirectOpenCount = 1; 1124 1125 audio_io_handle_t srcOutput = getOutputForEffect(); 1126 addOutput(output, outputDesc); 1127 audio_io_handle_t dstOutput = getOutputForEffect(); 1128 if (dstOutput == output) { 1129 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, srcOutput, dstOutput); 1130 } 1131 mPreviousOutputs = mOutputs; 1132 ALOGV("getOutput() returns new direct output %d", output); 1133 mpClientInterface->onAudioPortListUpdate(); 1134 return output; 1135 } 1136 1137non_direct_output: 1138 1139 // ignoring channel mask due to downmix capability in mixer 1140 1141 // open a non direct output 1142 1143 // for non direct outputs, only PCM is supported 1144 if (audio_is_linear_pcm(format)) { 1145 // get which output is suitable for the specified stream. The actual 1146 // routing change will happen when startOutput() will be called 1147 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(device, mOutputs); 1148 1149 // at this stage we should ignore the DIRECT flag as no direct output could be found earlier 1150 flags = (audio_output_flags_t)(flags & ~AUDIO_OUTPUT_FLAG_DIRECT); 1151 output = selectOutput(outputs, flags, format); 1152 } 1153 ALOGW_IF((output == 0), "getOutput() could not find output for stream %d, samplingRate %d," 1154 "format %d, channels %x, flags %x", stream, samplingRate, format, channelMask, flags); 1155 1156 ALOGV("getOutput() returns output %d", output); 1157 1158 return output; 1159} 1160 1161audio_io_handle_t AudioPolicyManager::selectOutput(const SortedVector<audio_io_handle_t>& outputs, 1162 audio_output_flags_t flags, 1163 audio_format_t format) 1164{ 1165 // select one output among several that provide a path to a particular device or set of 1166 // devices (the list was previously build by getOutputsForDevice()). 1167 // The priority is as follows: 1168 // 1: the output with the highest number of requested policy flags 1169 // 2: the primary output 1170 // 3: the first output in the list 1171 1172 if (outputs.size() == 0) { 1173 return 0; 1174 } 1175 if (outputs.size() == 1) { 1176 return outputs[0]; 1177 } 1178 1179 int maxCommonFlags = 0; 1180 audio_io_handle_t outputFlags = 0; 1181 audio_io_handle_t outputPrimary = 0; 1182 1183 for (size_t i = 0; i < outputs.size(); i++) { 1184 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 1185 if (!outputDesc->isDuplicated()) { 1186 // if a valid format is specified, skip output if not compatible 1187 if (format != AUDIO_FORMAT_INVALID) { 1188 if (outputDesc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 1189 if (format != outputDesc->mFormat) { 1190 continue; 1191 } 1192 } else if (!audio_is_linear_pcm(format)) { 1193 continue; 1194 } 1195 } 1196 1197 int commonFlags = popcount(outputDesc->mProfile->mFlags & flags); 1198 if (commonFlags > maxCommonFlags) { 1199 outputFlags = outputs[i]; 1200 maxCommonFlags = commonFlags; 1201 ALOGV("selectOutput() commonFlags for output %d, %04x", outputs[i], commonFlags); 1202 } 1203 if (outputDesc->mProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 1204 outputPrimary = outputs[i]; 1205 } 1206 } 1207 } 1208 1209 if (outputFlags != 0) { 1210 return outputFlags; 1211 } 1212 if (outputPrimary != 0) { 1213 return outputPrimary; 1214 } 1215 1216 return outputs[0]; 1217} 1218 1219status_t AudioPolicyManager::startOutput(audio_io_handle_t output, 1220 audio_stream_type_t stream, 1221 audio_session_t session) 1222{ 1223 ALOGV("startOutput() output %d, stream %d, session %d", output, stream, session); 1224 ssize_t index = mOutputs.indexOfKey(output); 1225 if (index < 0) { 1226 ALOGW("startOutput() unknown output %d", output); 1227 return BAD_VALUE; 1228 } 1229 1230 // cannot start playback of STREAM_TTS if any other output is being used 1231 uint32_t beaconMuteLatency = 0; 1232 if (stream == AUDIO_STREAM_TTS) { 1233 ALOGV("\t found BEACON stream"); 1234 if (isAnyOutputActive(AUDIO_STREAM_TTS /*streamToIgnore*/)) { 1235 return INVALID_OPERATION; 1236 } else { 1237 beaconMuteLatency = handleEventForBeacon(STARTING_BEACON); 1238 } 1239 } else { 1240 // some playback other than beacon starts 1241 beaconMuteLatency = handleEventForBeacon(STARTING_OUTPUT); 1242 } 1243 1244 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1245 1246 // increment usage count for this stream on the requested output: 1247 // NOTE that the usage count is the same for duplicated output and hardware output which is 1248 // necessary for a correct control of hardware output routing by startOutput() and stopOutput() 1249 outputDesc->changeRefCount(stream, 1); 1250 1251 if (outputDesc->mRefCount[stream] == 1) { 1252 // starting an output being rerouted? 1253 audio_devices_t newDevice; 1254 if (outputDesc->mPolicyMix != NULL) { 1255 newDevice = AUDIO_DEVICE_OUT_REMOTE_SUBMIX; 1256 } else { 1257 newDevice = getNewOutputDevice(output, false /*fromCache*/); 1258 } 1259 routing_strategy strategy = getStrategy(stream); 1260 bool shouldWait = (strategy == STRATEGY_SONIFICATION) || 1261 (strategy == STRATEGY_SONIFICATION_RESPECTFUL) || 1262 (beaconMuteLatency > 0); 1263 uint32_t waitMs = beaconMuteLatency; 1264 bool force = false; 1265 for (size_t i = 0; i < mOutputs.size(); i++) { 1266 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1267 if (desc != outputDesc) { 1268 // force a device change if any other output is managed by the same hw 1269 // module and has a current device selection that differs from selected device. 1270 // In this case, the audio HAL must receive the new device selection so that it can 1271 // change the device currently selected by the other active output. 1272 if (outputDesc->sharesHwModuleWith(desc) && 1273 desc->device() != newDevice) { 1274 force = true; 1275 } 1276 // wait for audio on other active outputs to be presented when starting 1277 // a notification so that audio focus effect can propagate, or that a mute/unmute 1278 // event occurred for beacon 1279 uint32_t latency = desc->latency(); 1280 if (shouldWait && desc->isActive(latency * 2) && (waitMs < latency)) { 1281 waitMs = latency; 1282 } 1283 } 1284 } 1285 uint32_t muteWaitMs = setOutputDevice(output, newDevice, force); 1286 1287 // handle special case for sonification while in call 1288 if (isInCall()) { 1289 handleIncallSonification(stream, true, false); 1290 } 1291 1292 // apply volume rules for current stream and device if necessary 1293 checkAndSetVolume(stream, 1294 mStreams[stream].getVolumeIndex(newDevice), 1295 output, 1296 newDevice); 1297 1298 // update the outputs if starting an output with a stream that can affect notification 1299 // routing 1300 handleNotificationRoutingForStream(stream); 1301 1302 // Automatically enable the remote submix input when output is started on a re routing mix 1303 // of type MIX_TYPE_RECORDERS 1304 if (audio_is_remote_submix_device(newDevice) && outputDesc->mPolicyMix != NULL && 1305 outputDesc->mPolicyMix->mMixType == MIX_TYPE_RECORDERS) { 1306 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 1307 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 1308 outputDesc->mPolicyMix->mRegistrationId); 1309 } 1310 1311 // force reevaluating accessibility routing when ringtone or alarm starts 1312 if (strategy == STRATEGY_SONIFICATION) { 1313 mpClientInterface->invalidateStream(AUDIO_STREAM_ACCESSIBILITY); 1314 } 1315 1316 if (waitMs > muteWaitMs) { 1317 usleep((waitMs - muteWaitMs) * 2 * 1000); 1318 } 1319 } 1320 return NO_ERROR; 1321} 1322 1323 1324status_t AudioPolicyManager::stopOutput(audio_io_handle_t output, 1325 audio_stream_type_t stream, 1326 audio_session_t session) 1327{ 1328 ALOGV("stopOutput() output %d, stream %d, session %d", output, stream, session); 1329 ssize_t index = mOutputs.indexOfKey(output); 1330 if (index < 0) { 1331 ALOGW("stopOutput() unknown output %d", output); 1332 return BAD_VALUE; 1333 } 1334 1335 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1336 1337 // always handle stream stop, check which stream type is stopping 1338 handleEventForBeacon(stream == AUDIO_STREAM_TTS ? STOPPING_BEACON : STOPPING_OUTPUT); 1339 1340 // handle special case for sonification while in call 1341 if (isInCall()) { 1342 handleIncallSonification(stream, false, false); 1343 } 1344 1345 if (outputDesc->mRefCount[stream] > 0) { 1346 // decrement usage count of this stream on the output 1347 outputDesc->changeRefCount(stream, -1); 1348 // store time at which the stream was stopped - see isStreamActive() 1349 if (outputDesc->mRefCount[stream] == 0) { 1350 // Automatically disable the remote submix input when output is stopped on a 1351 // re routing mix of type MIX_TYPE_RECORDERS 1352 if (audio_is_remote_submix_device(outputDesc->mDevice) && 1353 outputDesc->mPolicyMix != NULL && 1354 outputDesc->mPolicyMix->mMixType == MIX_TYPE_RECORDERS) { 1355 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 1356 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 1357 outputDesc->mPolicyMix->mRegistrationId); 1358 } 1359 1360 outputDesc->mStopTime[stream] = systemTime(); 1361 audio_devices_t newDevice = getNewOutputDevice(output, false /*fromCache*/); 1362 // delay the device switch by twice the latency because stopOutput() is executed when 1363 // the track stop() command is received and at that time the audio track buffer can 1364 // still contain data that needs to be drained. The latency only covers the audio HAL 1365 // and kernel buffers. Also the latency does not always include additional delay in the 1366 // audio path (audio DSP, CODEC ...) 1367 setOutputDevice(output, newDevice, false, outputDesc->mLatency*2); 1368 1369 // force restoring the device selection on other active outputs if it differs from the 1370 // one being selected for this output 1371 for (size_t i = 0; i < mOutputs.size(); i++) { 1372 audio_io_handle_t curOutput = mOutputs.keyAt(i); 1373 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1374 if (curOutput != output && 1375 desc->isActive() && 1376 outputDesc->sharesHwModuleWith(desc) && 1377 (newDevice != desc->device())) { 1378 setOutputDevice(curOutput, 1379 getNewOutputDevice(curOutput, false /*fromCache*/), 1380 true, 1381 outputDesc->mLatency*2); 1382 } 1383 } 1384 // update the outputs if stopping one with a stream that can affect notification routing 1385 handleNotificationRoutingForStream(stream); 1386 } 1387 return NO_ERROR; 1388 } else { 1389 ALOGW("stopOutput() refcount is already 0 for output %d", output); 1390 return INVALID_OPERATION; 1391 } 1392} 1393 1394void AudioPolicyManager::releaseOutput(audio_io_handle_t output, 1395 audio_stream_type_t stream __unused, 1396 audio_session_t session __unused) 1397{ 1398 ALOGV("releaseOutput() %d", output); 1399 ssize_t index = mOutputs.indexOfKey(output); 1400 if (index < 0) { 1401 ALOGW("releaseOutput() releasing unknown output %d", output); 1402 return; 1403 } 1404 1405#ifdef AUDIO_POLICY_TEST 1406 int testIndex = testOutputIndex(output); 1407 if (testIndex != 0) { 1408 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1409 if (outputDesc->isActive()) { 1410 mpClientInterface->closeOutput(output); 1411 mOutputs.removeItem(output); 1412 mTestOutputs[testIndex] = 0; 1413 } 1414 return; 1415 } 1416#endif //AUDIO_POLICY_TEST 1417 1418 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(index); 1419 if (desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 1420 if (desc->mDirectOpenCount <= 0) { 1421 ALOGW("releaseOutput() invalid open count %d for output %d", 1422 desc->mDirectOpenCount, output); 1423 return; 1424 } 1425 if (--desc->mDirectOpenCount == 0) { 1426 closeOutput(output); 1427 // If effects where present on the output, audioflinger moved them to the primary 1428 // output by default: move them back to the appropriate output. 1429 audio_io_handle_t dstOutput = getOutputForEffect(); 1430 if (dstOutput != mPrimaryOutput) { 1431 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, mPrimaryOutput, dstOutput); 1432 } 1433 mpClientInterface->onAudioPortListUpdate(); 1434 } 1435 } 1436} 1437 1438 1439status_t AudioPolicyManager::getInputForAttr(const audio_attributes_t *attr, 1440 audio_io_handle_t *input, 1441 audio_session_t session, 1442 uint32_t samplingRate, 1443 audio_format_t format, 1444 audio_channel_mask_t channelMask, 1445 audio_input_flags_t flags, 1446 input_type_t *inputType) 1447{ 1448 ALOGV("getInputForAttr() source %d, samplingRate %d, format %d, channelMask %x," 1449 "session %d, flags %#x", 1450 attr->source, samplingRate, format, channelMask, session, flags); 1451 1452 *input = AUDIO_IO_HANDLE_NONE; 1453 *inputType = API_INPUT_INVALID; 1454 audio_devices_t device; 1455 // handle legacy remote submix case where the address was not always specified 1456 String8 address = String8(""); 1457 bool isSoundTrigger = false; 1458 audio_source_t inputSource = attr->source; 1459 audio_source_t halInputSource; 1460 AudioMix *policyMix = NULL; 1461 1462 if (inputSource == AUDIO_SOURCE_DEFAULT) { 1463 inputSource = AUDIO_SOURCE_MIC; 1464 } 1465 halInputSource = inputSource; 1466 1467 if (inputSource == AUDIO_SOURCE_REMOTE_SUBMIX && 1468 strncmp(attr->tags, "addr=", strlen("addr=")) == 0) { 1469 device = AUDIO_DEVICE_IN_REMOTE_SUBMIX; 1470 address = String8(attr->tags + strlen("addr=")); 1471 ssize_t index = mPolicyMixes.indexOfKey(address); 1472 if (index < 0) { 1473 ALOGW("getInputForAttr() no policy for address %s", address.string()); 1474 return BAD_VALUE; 1475 } 1476 if (mPolicyMixes[index]->mMix.mMixType != MIX_TYPE_PLAYERS) { 1477 ALOGW("getInputForAttr() bad policy mix type for address %s", address.string()); 1478 return BAD_VALUE; 1479 } 1480 policyMix = &mPolicyMixes[index]->mMix; 1481 *inputType = API_INPUT_MIX_EXT_POLICY_REROUTE; 1482 } else { 1483 device = getDeviceAndMixForInputSource(inputSource, &policyMix); 1484 if (device == AUDIO_DEVICE_NONE) { 1485 ALOGW("getInputForAttr() could not find device for source %d", inputSource); 1486 return BAD_VALUE; 1487 } 1488 if (policyMix != NULL) { 1489 address = policyMix->mRegistrationId; 1490 if (policyMix->mMixType == MIX_TYPE_RECORDERS) { 1491 // there is an external policy, but this input is attached to a mix of recorders, 1492 // meaning it receives audio injected into the framework, so the recorder doesn't 1493 // know about it and is therefore considered "legacy" 1494 *inputType = API_INPUT_LEGACY; 1495 } else { 1496 // recording a mix of players defined by an external policy, we're rerouting for 1497 // an external policy 1498 *inputType = API_INPUT_MIX_EXT_POLICY_REROUTE; 1499 } 1500 } else if (audio_is_remote_submix_device(device)) { 1501 address = String8("0"); 1502 *inputType = API_INPUT_MIX_CAPTURE; 1503 } else { 1504 *inputType = API_INPUT_LEGACY; 1505 } 1506 // adapt channel selection to input source 1507 switch (inputSource) { 1508 case AUDIO_SOURCE_VOICE_UPLINK: 1509 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK; 1510 break; 1511 case AUDIO_SOURCE_VOICE_DOWNLINK: 1512 channelMask = AUDIO_CHANNEL_IN_VOICE_DNLINK; 1513 break; 1514 case AUDIO_SOURCE_VOICE_CALL: 1515 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK | AUDIO_CHANNEL_IN_VOICE_DNLINK; 1516 break; 1517 default: 1518 break; 1519 } 1520 if (inputSource == AUDIO_SOURCE_HOTWORD) { 1521 ssize_t index = mSoundTriggerSessions.indexOfKey(session); 1522 if (index >= 0) { 1523 *input = mSoundTriggerSessions.valueFor(session); 1524 isSoundTrigger = true; 1525 flags = (audio_input_flags_t)(flags | AUDIO_INPUT_FLAG_HW_HOTWORD); 1526 ALOGV("SoundTrigger capture on session %d input %d", session, *input); 1527 } else { 1528 halInputSource = AUDIO_SOURCE_VOICE_RECOGNITION; 1529 } 1530 } 1531 } 1532 1533 sp<IOProfile> profile = getInputProfile(device, address, 1534 samplingRate, format, channelMask, 1535 flags); 1536 if (profile == 0) { 1537 //retry without flags 1538 audio_input_flags_t log_flags = flags; 1539 flags = AUDIO_INPUT_FLAG_NONE; 1540 profile = getInputProfile(device, address, 1541 samplingRate, format, channelMask, 1542 flags); 1543 if (profile == 0) { 1544 ALOGW("getInputForAttr() could not find profile for device 0x%X, samplingRate %u," 1545 "format %#x, channelMask 0x%X, flags %#x", 1546 device, samplingRate, format, channelMask, log_flags); 1547 return BAD_VALUE; 1548 } 1549 } 1550 1551 if (profile->mModule->mHandle == 0) { 1552 ALOGE("getInputForAttr(): HW module %s not opened", profile->mModule->mName); 1553 return NO_INIT; 1554 } 1555 1556 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 1557 config.sample_rate = samplingRate; 1558 config.channel_mask = channelMask; 1559 config.format = format; 1560 1561 status_t status = mpClientInterface->openInput(profile->mModule->mHandle, 1562 input, 1563 &config, 1564 &device, 1565 address, 1566 halInputSource, 1567 flags); 1568 1569 // only accept input with the exact requested set of parameters 1570 if (status != NO_ERROR || *input == AUDIO_IO_HANDLE_NONE || 1571 (samplingRate != config.sample_rate) || 1572 (format != config.format) || 1573 (channelMask != config.channel_mask)) { 1574 ALOGW("getInputForAttr() failed opening input: samplingRate %d, format %d, channelMask %x", 1575 samplingRate, format, channelMask); 1576 if (*input != AUDIO_IO_HANDLE_NONE) { 1577 mpClientInterface->closeInput(*input); 1578 } 1579 return BAD_VALUE; 1580 } 1581 1582 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(profile); 1583 inputDesc->mInputSource = inputSource; 1584 inputDesc->mRefCount = 0; 1585 inputDesc->mOpenRefCount = 1; 1586 inputDesc->mSamplingRate = samplingRate; 1587 inputDesc->mFormat = format; 1588 inputDesc->mChannelMask = channelMask; 1589 inputDesc->mDevice = device; 1590 inputDesc->mSessions.add(session); 1591 inputDesc->mIsSoundTrigger = isSoundTrigger; 1592 inputDesc->mPolicyMix = policyMix; 1593 1594 ALOGV("getInputForAttr() returns input type = %d", inputType); 1595 1596 addInput(*input, inputDesc); 1597 mpClientInterface->onAudioPortListUpdate(); 1598 return NO_ERROR; 1599} 1600 1601status_t AudioPolicyManager::startInput(audio_io_handle_t input, 1602 audio_session_t session) 1603{ 1604 ALOGV("startInput() input %d", input); 1605 ssize_t index = mInputs.indexOfKey(input); 1606 if (index < 0) { 1607 ALOGW("startInput() unknown input %d", input); 1608 return BAD_VALUE; 1609 } 1610 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1611 1612 index = inputDesc->mSessions.indexOf(session); 1613 if (index < 0) { 1614 ALOGW("startInput() unknown session %d on input %d", session, input); 1615 return BAD_VALUE; 1616 } 1617 1618 // virtual input devices are compatible with other input devices 1619 if (!isVirtualInputDevice(inputDesc->mDevice)) { 1620 1621 // for a non-virtual input device, check if there is another (non-virtual) active input 1622 audio_io_handle_t activeInput = getActiveInput(); 1623 if (activeInput != 0 && activeInput != input) { 1624 1625 // If the already active input uses AUDIO_SOURCE_HOTWORD then it is closed, 1626 // otherwise the active input continues and the new input cannot be started. 1627 sp<AudioInputDescriptor> activeDesc = mInputs.valueFor(activeInput); 1628 if (activeDesc->mInputSource == AUDIO_SOURCE_HOTWORD) { 1629 ALOGW("startInput(%d) preempting low-priority input %d", input, activeInput); 1630 stopInput(activeInput, activeDesc->mSessions.itemAt(0)); 1631 releaseInput(activeInput, activeDesc->mSessions.itemAt(0)); 1632 } else { 1633 ALOGE("startInput(%d) failed: other input %d already started", input, activeInput); 1634 return INVALID_OPERATION; 1635 } 1636 } 1637 } 1638 1639 if (inputDesc->mRefCount == 0) { 1640 if (activeInputsCount() == 0) { 1641 SoundTrigger::setCaptureState(true); 1642 } 1643 setInputDevice(input, getNewInputDevice(input), true /* force */); 1644 1645 // automatically enable the remote submix output when input is started if not 1646 // used by a policy mix of type MIX_TYPE_RECORDERS 1647 // For remote submix (a virtual device), we open only one input per capture request. 1648 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1649 String8 address = String8(""); 1650 if (inputDesc->mPolicyMix == NULL) { 1651 address = String8("0"); 1652 } else if (inputDesc->mPolicyMix->mMixType == MIX_TYPE_PLAYERS) { 1653 address = inputDesc->mPolicyMix->mRegistrationId; 1654 } 1655 if (address != "") { 1656 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1657 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 1658 address); 1659 } 1660 } 1661 } 1662 1663 ALOGV("AudioPolicyManager::startInput() input source = %d", inputDesc->mInputSource); 1664 1665 inputDesc->mRefCount++; 1666 return NO_ERROR; 1667} 1668 1669status_t AudioPolicyManager::stopInput(audio_io_handle_t input, 1670 audio_session_t session) 1671{ 1672 ALOGV("stopInput() input %d", input); 1673 ssize_t index = mInputs.indexOfKey(input); 1674 if (index < 0) { 1675 ALOGW("stopInput() unknown input %d", input); 1676 return BAD_VALUE; 1677 } 1678 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1679 1680 index = inputDesc->mSessions.indexOf(session); 1681 if (index < 0) { 1682 ALOGW("stopInput() unknown session %d on input %d", session, input); 1683 return BAD_VALUE; 1684 } 1685 1686 if (inputDesc->mRefCount == 0) { 1687 ALOGW("stopInput() input %d already stopped", input); 1688 return INVALID_OPERATION; 1689 } 1690 1691 inputDesc->mRefCount--; 1692 if (inputDesc->mRefCount == 0) { 1693 1694 // automatically disable the remote submix output when input is stopped if not 1695 // used by a policy mix of type MIX_TYPE_RECORDERS 1696 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1697 String8 address = String8(""); 1698 if (inputDesc->mPolicyMix == NULL) { 1699 address = String8("0"); 1700 } else if (inputDesc->mPolicyMix->mMixType == MIX_TYPE_PLAYERS) { 1701 address = inputDesc->mPolicyMix->mRegistrationId; 1702 } 1703 if (address != "") { 1704 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1705 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 1706 address); 1707 } 1708 } 1709 1710 resetInputDevice(input); 1711 1712 if (activeInputsCount() == 0) { 1713 SoundTrigger::setCaptureState(false); 1714 } 1715 } 1716 return NO_ERROR; 1717} 1718 1719void AudioPolicyManager::releaseInput(audio_io_handle_t input, 1720 audio_session_t session) 1721{ 1722 ALOGV("releaseInput() %d", input); 1723 ssize_t index = mInputs.indexOfKey(input); 1724 if (index < 0) { 1725 ALOGW("releaseInput() releasing unknown input %d", input); 1726 return; 1727 } 1728 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1729 ALOG_ASSERT(inputDesc != 0); 1730 1731 index = inputDesc->mSessions.indexOf(session); 1732 if (index < 0) { 1733 ALOGW("releaseInput() unknown session %d on input %d", session, input); 1734 return; 1735 } 1736 inputDesc->mSessions.remove(session); 1737 if (inputDesc->mOpenRefCount == 0) { 1738 ALOGW("releaseInput() invalid open ref count %d", inputDesc->mOpenRefCount); 1739 return; 1740 } 1741 inputDesc->mOpenRefCount--; 1742 if (inputDesc->mOpenRefCount > 0) { 1743 ALOGV("releaseInput() exit > 0"); 1744 return; 1745 } 1746 1747 closeInput(input); 1748 mpClientInterface->onAudioPortListUpdate(); 1749 ALOGV("releaseInput() exit"); 1750} 1751 1752void AudioPolicyManager::closeAllInputs() { 1753 bool patchRemoved = false; 1754 1755 for(size_t input_index = 0; input_index < mInputs.size(); input_index++) { 1756 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(input_index); 1757 ssize_t patch_index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 1758 if (patch_index >= 0) { 1759 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(patch_index); 1760 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 1761 mAudioPatches.removeItemsAt(patch_index); 1762 patchRemoved = true; 1763 } 1764 mpClientInterface->closeInput(mInputs.keyAt(input_index)); 1765 } 1766 mInputs.clear(); 1767 nextAudioPortGeneration(); 1768 1769 if (patchRemoved) { 1770 mpClientInterface->onAudioPatchListUpdate(); 1771 } 1772} 1773 1774void AudioPolicyManager::initStreamVolume(audio_stream_type_t stream, 1775 int indexMin, 1776 int indexMax) 1777{ 1778 ALOGV("initStreamVolume() stream %d, min %d, max %d", stream , indexMin, indexMax); 1779 if (indexMin < 0 || indexMin >= indexMax) { 1780 ALOGW("initStreamVolume() invalid index limits for stream %d, min %d, max %d", stream , indexMin, indexMax); 1781 return; 1782 } 1783 mStreams[stream].mIndexMin = indexMin; 1784 mStreams[stream].mIndexMax = indexMax; 1785 //FIXME: AUDIO_STREAM_ACCESSIBILITY volume follows AUDIO_STREAM_MUSIC for now 1786 if (stream == AUDIO_STREAM_MUSIC) { 1787 mStreams[AUDIO_STREAM_ACCESSIBILITY].mIndexMin = indexMin; 1788 mStreams[AUDIO_STREAM_ACCESSIBILITY].mIndexMax = indexMax; 1789 } 1790} 1791 1792status_t AudioPolicyManager::setStreamVolumeIndex(audio_stream_type_t stream, 1793 int index, 1794 audio_devices_t device) 1795{ 1796 1797 if ((index < mStreams[stream].mIndexMin) || (index > mStreams[stream].mIndexMax)) { 1798 return BAD_VALUE; 1799 } 1800 if (!audio_is_output_device(device)) { 1801 return BAD_VALUE; 1802 } 1803 1804 // Force max volume if stream cannot be muted 1805 if (!mStreams[stream].mCanBeMuted) index = mStreams[stream].mIndexMax; 1806 1807 ALOGV("setStreamVolumeIndex() stream %d, device %04x, index %d", 1808 stream, device, index); 1809 1810 // if device is AUDIO_DEVICE_OUT_DEFAULT set default value and 1811 // clear all device specific values 1812 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1813 mStreams[stream].mIndexCur.clear(); 1814 } 1815 mStreams[stream].mIndexCur.add(device, index); 1816 1817 // update volume on all outputs whose current device is also selected by the same 1818 // strategy as the device specified by the caller 1819 audio_devices_t strategyDevice = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1820 1821 1822 //FIXME: AUDIO_STREAM_ACCESSIBILITY volume follows AUDIO_STREAM_MUSIC for now 1823 audio_devices_t accessibilityDevice = AUDIO_DEVICE_NONE; 1824 if (stream == AUDIO_STREAM_MUSIC) { 1825 mStreams[AUDIO_STREAM_ACCESSIBILITY].mIndexCur.add(device, index); 1826 accessibilityDevice = getDeviceForStrategy(STRATEGY_ACCESSIBILITY, true /*fromCache*/); 1827 } 1828 if ((device != AUDIO_DEVICE_OUT_DEFAULT) && 1829 (device & (strategyDevice | accessibilityDevice)) == 0) { 1830 return NO_ERROR; 1831 } 1832 status_t status = NO_ERROR; 1833 for (size_t i = 0; i < mOutputs.size(); i++) { 1834 audio_devices_t curDevice = 1835 getDeviceForVolume(mOutputs.valueAt(i)->device()); 1836 if ((device == AUDIO_DEVICE_OUT_DEFAULT) || ((curDevice & strategyDevice) != 0)) { 1837 status_t volStatus = checkAndSetVolume(stream, index, mOutputs.keyAt(i), curDevice); 1838 if (volStatus != NO_ERROR) { 1839 status = volStatus; 1840 } 1841 } 1842 if ((device == AUDIO_DEVICE_OUT_DEFAULT) || ((curDevice & accessibilityDevice) != 0)) { 1843 status_t volStatus = checkAndSetVolume(AUDIO_STREAM_ACCESSIBILITY, 1844 index, mOutputs.keyAt(i), curDevice); 1845 } 1846 } 1847 return status; 1848} 1849 1850status_t AudioPolicyManager::getStreamVolumeIndex(audio_stream_type_t stream, 1851 int *index, 1852 audio_devices_t device) 1853{ 1854 if (index == NULL) { 1855 return BAD_VALUE; 1856 } 1857 if (!audio_is_output_device(device)) { 1858 return BAD_VALUE; 1859 } 1860 // if device is AUDIO_DEVICE_OUT_DEFAULT, return volume for device corresponding to 1861 // the strategy the stream belongs to. 1862 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1863 device = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1864 } 1865 device = getDeviceForVolume(device); 1866 1867 *index = mStreams[stream].getVolumeIndex(device); 1868 ALOGV("getStreamVolumeIndex() stream %d device %08x index %d", stream, device, *index); 1869 return NO_ERROR; 1870} 1871 1872audio_io_handle_t AudioPolicyManager::selectOutputForEffects( 1873 const SortedVector<audio_io_handle_t>& outputs) 1874{ 1875 // select one output among several suitable for global effects. 1876 // The priority is as follows: 1877 // 1: An offloaded output. If the effect ends up not being offloadable, 1878 // AudioFlinger will invalidate the track and the offloaded output 1879 // will be closed causing the effect to be moved to a PCM output. 1880 // 2: A deep buffer output 1881 // 3: the first output in the list 1882 1883 if (outputs.size() == 0) { 1884 return 0; 1885 } 1886 1887 audio_io_handle_t outputOffloaded = 0; 1888 audio_io_handle_t outputDeepBuffer = 0; 1889 1890 for (size_t i = 0; i < outputs.size(); i++) { 1891 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 1892 ALOGV("selectOutputForEffects outputs[%zu] flags %x", i, desc->mFlags); 1893 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1894 outputOffloaded = outputs[i]; 1895 } 1896 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) != 0) { 1897 outputDeepBuffer = outputs[i]; 1898 } 1899 } 1900 1901 ALOGV("selectOutputForEffects outputOffloaded %d outputDeepBuffer %d", 1902 outputOffloaded, outputDeepBuffer); 1903 if (outputOffloaded != 0) { 1904 return outputOffloaded; 1905 } 1906 if (outputDeepBuffer != 0) { 1907 return outputDeepBuffer; 1908 } 1909 1910 return outputs[0]; 1911} 1912 1913audio_io_handle_t AudioPolicyManager::getOutputForEffect(const effect_descriptor_t *desc) 1914{ 1915 // apply simple rule where global effects are attached to the same output as MUSIC streams 1916 1917 routing_strategy strategy = getStrategy(AUDIO_STREAM_MUSIC); 1918 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 1919 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(device, mOutputs); 1920 1921 audio_io_handle_t output = selectOutputForEffects(dstOutputs); 1922 ALOGV("getOutputForEffect() got output %d for fx %s flags %x", 1923 output, (desc == NULL) ? "unspecified" : desc->name, (desc == NULL) ? 0 : desc->flags); 1924 1925 return output; 1926} 1927 1928status_t AudioPolicyManager::registerEffect(const effect_descriptor_t *desc, 1929 audio_io_handle_t io, 1930 uint32_t strategy, 1931 int session, 1932 int id) 1933{ 1934 ssize_t index = mOutputs.indexOfKey(io); 1935 if (index < 0) { 1936 index = mInputs.indexOfKey(io); 1937 if (index < 0) { 1938 ALOGW("registerEffect() unknown io %d", io); 1939 return INVALID_OPERATION; 1940 } 1941 } 1942 1943 if (mTotalEffectsMemory + desc->memoryUsage > getMaxEffectsMemory()) { 1944 ALOGW("registerEffect() memory limit exceeded for Fx %s, Memory %d KB", 1945 desc->name, desc->memoryUsage); 1946 return INVALID_OPERATION; 1947 } 1948 mTotalEffectsMemory += desc->memoryUsage; 1949 ALOGV("registerEffect() effect %s, io %d, strategy %d session %d id %d", 1950 desc->name, io, strategy, session, id); 1951 ALOGV("registerEffect() memory %d, total memory %d", desc->memoryUsage, mTotalEffectsMemory); 1952 1953 sp<EffectDescriptor> effectDesc = new EffectDescriptor(); 1954 memcpy (&effectDesc->mDesc, desc, sizeof(effect_descriptor_t)); 1955 effectDesc->mIo = io; 1956 effectDesc->mStrategy = (routing_strategy)strategy; 1957 effectDesc->mSession = session; 1958 effectDesc->mEnabled = false; 1959 1960 mEffects.add(id, effectDesc); 1961 1962 return NO_ERROR; 1963} 1964 1965status_t AudioPolicyManager::unregisterEffect(int id) 1966{ 1967 ssize_t index = mEffects.indexOfKey(id); 1968 if (index < 0) { 1969 ALOGW("unregisterEffect() unknown effect ID %d", id); 1970 return INVALID_OPERATION; 1971 } 1972 1973 sp<EffectDescriptor> effectDesc = mEffects.valueAt(index); 1974 1975 setEffectEnabled(effectDesc, false); 1976 1977 if (mTotalEffectsMemory < effectDesc->mDesc.memoryUsage) { 1978 ALOGW("unregisterEffect() memory %d too big for total %d", 1979 effectDesc->mDesc.memoryUsage, mTotalEffectsMemory); 1980 effectDesc->mDesc.memoryUsage = mTotalEffectsMemory; 1981 } 1982 mTotalEffectsMemory -= effectDesc->mDesc.memoryUsage; 1983 ALOGV("unregisterEffect() effect %s, ID %d, memory %d total memory %d", 1984 effectDesc->mDesc.name, id, effectDesc->mDesc.memoryUsage, mTotalEffectsMemory); 1985 1986 mEffects.removeItem(id); 1987 1988 return NO_ERROR; 1989} 1990 1991status_t AudioPolicyManager::setEffectEnabled(int id, bool enabled) 1992{ 1993 ssize_t index = mEffects.indexOfKey(id); 1994 if (index < 0) { 1995 ALOGW("unregisterEffect() unknown effect ID %d", id); 1996 return INVALID_OPERATION; 1997 } 1998 1999 return setEffectEnabled(mEffects.valueAt(index), enabled); 2000} 2001 2002status_t AudioPolicyManager::setEffectEnabled(const sp<EffectDescriptor>& effectDesc, bool enabled) 2003{ 2004 if (enabled == effectDesc->mEnabled) { 2005 ALOGV("setEffectEnabled(%s) effect already %s", 2006 enabled?"true":"false", enabled?"enabled":"disabled"); 2007 return INVALID_OPERATION; 2008 } 2009 2010 if (enabled) { 2011 if (mTotalEffectsCpuLoad + effectDesc->mDesc.cpuLoad > getMaxEffectsCpuLoad()) { 2012 ALOGW("setEffectEnabled(true) CPU Load limit exceeded for Fx %s, CPU %f MIPS", 2013 effectDesc->mDesc.name, (float)effectDesc->mDesc.cpuLoad/10); 2014 return INVALID_OPERATION; 2015 } 2016 mTotalEffectsCpuLoad += effectDesc->mDesc.cpuLoad; 2017 ALOGV("setEffectEnabled(true) total CPU %d", mTotalEffectsCpuLoad); 2018 } else { 2019 if (mTotalEffectsCpuLoad < effectDesc->mDesc.cpuLoad) { 2020 ALOGW("setEffectEnabled(false) CPU load %d too high for total %d", 2021 effectDesc->mDesc.cpuLoad, mTotalEffectsCpuLoad); 2022 effectDesc->mDesc.cpuLoad = mTotalEffectsCpuLoad; 2023 } 2024 mTotalEffectsCpuLoad -= effectDesc->mDesc.cpuLoad; 2025 ALOGV("setEffectEnabled(false) total CPU %d", mTotalEffectsCpuLoad); 2026 } 2027 effectDesc->mEnabled = enabled; 2028 return NO_ERROR; 2029} 2030 2031bool AudioPolicyManager::isNonOffloadableEffectEnabled() 2032{ 2033 for (size_t i = 0; i < mEffects.size(); i++) { 2034 sp<EffectDescriptor> effectDesc = mEffects.valueAt(i); 2035 if (effectDesc->mEnabled && (effectDesc->mStrategy == STRATEGY_MEDIA) && 2036 ((effectDesc->mDesc.flags & EFFECT_FLAG_OFFLOAD_SUPPORTED) == 0)) { 2037 ALOGV("isNonOffloadableEffectEnabled() non offloadable effect %s enabled on session %d", 2038 effectDesc->mDesc.name, effectDesc->mSession); 2039 return true; 2040 } 2041 } 2042 return false; 2043} 2044 2045bool AudioPolicyManager::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const 2046{ 2047 nsecs_t sysTime = systemTime(); 2048 for (size_t i = 0; i < mOutputs.size(); i++) { 2049 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 2050 if (outputDesc->isStreamActive(stream, inPastMs, sysTime)) { 2051 return true; 2052 } 2053 } 2054 return false; 2055} 2056 2057bool AudioPolicyManager::isStreamActiveRemotely(audio_stream_type_t stream, 2058 uint32_t inPastMs) const 2059{ 2060 nsecs_t sysTime = systemTime(); 2061 for (size_t i = 0; i < mOutputs.size(); i++) { 2062 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 2063 if (((outputDesc->device() & APM_AUDIO_OUT_DEVICE_REMOTE_ALL) != 0) && 2064 outputDesc->isStreamActive(stream, inPastMs, sysTime)) { 2065 // do not consider re routing (when the output is going to a dynamic policy) 2066 // as "remote playback" 2067 if (outputDesc->mPolicyMix == NULL) { 2068 return true; 2069 } 2070 } 2071 } 2072 return false; 2073} 2074 2075bool AudioPolicyManager::isSourceActive(audio_source_t source) const 2076{ 2077 for (size_t i = 0; i < mInputs.size(); i++) { 2078 const sp<AudioInputDescriptor> inputDescriptor = mInputs.valueAt(i); 2079 if (inputDescriptor->mRefCount == 0) { 2080 continue; 2081 } 2082 if (inputDescriptor->mInputSource == (int)source) { 2083 return true; 2084 } 2085 // AUDIO_SOURCE_HOTWORD is equivalent to AUDIO_SOURCE_VOICE_RECOGNITION only if it 2086 // corresponds to an active capture triggered by a hardware hotword recognition 2087 if ((source == AUDIO_SOURCE_VOICE_RECOGNITION) && 2088 (inputDescriptor->mInputSource == AUDIO_SOURCE_HOTWORD)) { 2089 // FIXME: we should not assume that the first session is the active one and keep 2090 // activity count per session. Same in startInput(). 2091 ssize_t index = mSoundTriggerSessions.indexOfKey(inputDescriptor->mSessions.itemAt(0)); 2092 if (index >= 0) { 2093 return true; 2094 } 2095 } 2096 } 2097 return false; 2098} 2099 2100// Register a list of custom mixes with their attributes and format. 2101// When a mix is registered, corresponding input and output profiles are 2102// added to the remote submix hw module. The profile contains only the 2103// parameters (sampling rate, format...) specified by the mix. 2104// The corresponding input remote submix device is also connected. 2105// 2106// When a remote submix device is connected, the address is checked to select the 2107// appropriate profile and the corresponding input or output stream is opened. 2108// 2109// When capture starts, getInputForAttr() will: 2110// - 1 look for a mix matching the address passed in attribtutes tags if any 2111// - 2 if none found, getDeviceForInputSource() will: 2112// - 2.1 look for a mix matching the attributes source 2113// - 2.2 if none found, default to device selection by policy rules 2114// At this time, the corresponding output remote submix device is also connected 2115// and active playback use cases can be transferred to this mix if needed when reconnecting 2116// after AudioTracks are invalidated 2117// 2118// When playback starts, getOutputForAttr() will: 2119// - 1 look for a mix matching the address passed in attribtutes tags if any 2120// - 2 if none found, look for a mix matching the attributes usage 2121// - 3 if none found, default to device and output selection by policy rules. 2122 2123status_t AudioPolicyManager::registerPolicyMixes(Vector<AudioMix> mixes) 2124{ 2125 sp<HwModule> module; 2126 for (size_t i = 0; i < mHwModules.size(); i++) { 2127 if (strcmp(AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX, mHwModules[i]->mName) == 0 && 2128 mHwModules[i]->mHandle != 0) { 2129 module = mHwModules[i]; 2130 break; 2131 } 2132 } 2133 2134 if (module == 0) { 2135 return INVALID_OPERATION; 2136 } 2137 2138 ALOGV("registerPolicyMixes() num mixes %d", mixes.size()); 2139 2140 for (size_t i = 0; i < mixes.size(); i++) { 2141 String8 address = mixes[i].mRegistrationId; 2142 ssize_t index = mPolicyMixes.indexOfKey(address); 2143 if (index >= 0) { 2144 ALOGE("registerPolicyMixes(): mix for address %s already registered", address.string()); 2145 continue; 2146 } 2147 audio_config_t outputConfig = mixes[i].mFormat; 2148 audio_config_t inputConfig = mixes[i].mFormat; 2149 // NOTE: audio flinger mixer does not support mono output: configure remote submix HAL in 2150 // stereo and let audio flinger do the channel conversion if needed. 2151 outputConfig.channel_mask = AUDIO_CHANNEL_OUT_STEREO; 2152 inputConfig.channel_mask = AUDIO_CHANNEL_IN_STEREO; 2153 module->addOutputProfile(address, &outputConfig, 2154 AUDIO_DEVICE_OUT_REMOTE_SUBMIX, address); 2155 module->addInputProfile(address, &inputConfig, 2156 AUDIO_DEVICE_IN_REMOTE_SUBMIX, address); 2157 sp<AudioPolicyMix> policyMix = new AudioPolicyMix(); 2158 policyMix->mMix = mixes[i]; 2159 mPolicyMixes.add(address, policyMix); 2160 if (mixes[i].mMixType == MIX_TYPE_PLAYERS) { 2161 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 2162 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 2163 address.string()); 2164 } else { 2165 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 2166 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 2167 address.string()); 2168 } 2169 } 2170 return NO_ERROR; 2171} 2172 2173status_t AudioPolicyManager::unregisterPolicyMixes(Vector<AudioMix> mixes) 2174{ 2175 sp<HwModule> module; 2176 for (size_t i = 0; i < mHwModules.size(); i++) { 2177 if (strcmp(AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX, mHwModules[i]->mName) == 0 && 2178 mHwModules[i]->mHandle != 0) { 2179 module = mHwModules[i]; 2180 break; 2181 } 2182 } 2183 2184 if (module == 0) { 2185 return INVALID_OPERATION; 2186 } 2187 2188 ALOGV("unregisterPolicyMixes() num mixes %d", mixes.size()); 2189 2190 for (size_t i = 0; i < mixes.size(); i++) { 2191 String8 address = mixes[i].mRegistrationId; 2192 ssize_t index = mPolicyMixes.indexOfKey(address); 2193 if (index < 0) { 2194 ALOGE("unregisterPolicyMixes(): mix for address %s not registered", address.string()); 2195 continue; 2196 } 2197 2198 mPolicyMixes.removeItemsAt(index); 2199 2200 if (getDeviceConnectionState(AUDIO_DEVICE_IN_REMOTE_SUBMIX, address.string()) == 2201 AUDIO_POLICY_DEVICE_STATE_AVAILABLE) 2202 { 2203 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 2204 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 2205 address.string()); 2206 } 2207 2208 if (getDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, address.string()) == 2209 AUDIO_POLICY_DEVICE_STATE_AVAILABLE) 2210 { 2211 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 2212 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 2213 address.string()); 2214 } 2215 module->removeOutputProfile(address); 2216 module->removeInputProfile(address); 2217 } 2218 return NO_ERROR; 2219} 2220 2221 2222status_t AudioPolicyManager::dump(int fd) 2223{ 2224 const size_t SIZE = 256; 2225 char buffer[SIZE]; 2226 String8 result; 2227 2228 snprintf(buffer, SIZE, "\nAudioPolicyManager Dump: %p\n", this); 2229 result.append(buffer); 2230 2231 snprintf(buffer, SIZE, " Primary Output: %d\n", mPrimaryOutput); 2232 result.append(buffer); 2233 snprintf(buffer, SIZE, " Phone state: %d\n", mPhoneState); 2234 result.append(buffer); 2235 snprintf(buffer, SIZE, " Force use for communications %d\n", 2236 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]); 2237 result.append(buffer); 2238 snprintf(buffer, SIZE, " Force use for media %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA]); 2239 result.append(buffer); 2240 snprintf(buffer, SIZE, " Force use for record %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD]); 2241 result.append(buffer); 2242 snprintf(buffer, SIZE, " Force use for dock %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK]); 2243 result.append(buffer); 2244 snprintf(buffer, SIZE, " Force use for system %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM]); 2245 result.append(buffer); 2246 snprintf(buffer, SIZE, " Force use for hdmi system audio %d\n", 2247 mForceUse[AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO]); 2248 result.append(buffer); 2249 2250 snprintf(buffer, SIZE, " Available output devices:\n"); 2251 result.append(buffer); 2252 write(fd, result.string(), result.size()); 2253 for (size_t i = 0; i < mAvailableOutputDevices.size(); i++) { 2254 mAvailableOutputDevices[i]->dump(fd, 2, i); 2255 } 2256 snprintf(buffer, SIZE, "\n Available input devices:\n"); 2257 write(fd, buffer, strlen(buffer)); 2258 for (size_t i = 0; i < mAvailableInputDevices.size(); i++) { 2259 mAvailableInputDevices[i]->dump(fd, 2, i); 2260 } 2261 2262 snprintf(buffer, SIZE, "\nHW Modules dump:\n"); 2263 write(fd, buffer, strlen(buffer)); 2264 for (size_t i = 0; i < mHwModules.size(); i++) { 2265 snprintf(buffer, SIZE, "- HW Module %zu:\n", i + 1); 2266 write(fd, buffer, strlen(buffer)); 2267 mHwModules[i]->dump(fd); 2268 } 2269 2270 snprintf(buffer, SIZE, "\nOutputs dump:\n"); 2271 write(fd, buffer, strlen(buffer)); 2272 for (size_t i = 0; i < mOutputs.size(); i++) { 2273 snprintf(buffer, SIZE, "- Output %d dump:\n", mOutputs.keyAt(i)); 2274 write(fd, buffer, strlen(buffer)); 2275 mOutputs.valueAt(i)->dump(fd); 2276 } 2277 2278 snprintf(buffer, SIZE, "\nInputs dump:\n"); 2279 write(fd, buffer, strlen(buffer)); 2280 for (size_t i = 0; i < mInputs.size(); i++) { 2281 snprintf(buffer, SIZE, "- Input %d dump:\n", mInputs.keyAt(i)); 2282 write(fd, buffer, strlen(buffer)); 2283 mInputs.valueAt(i)->dump(fd); 2284 } 2285 2286 snprintf(buffer, SIZE, "\nStreams dump:\n"); 2287 write(fd, buffer, strlen(buffer)); 2288 snprintf(buffer, SIZE, 2289 " Stream Can be muted Index Min Index Max Index Cur [device : index]...\n"); 2290 write(fd, buffer, strlen(buffer)); 2291 for (size_t i = 0; i < AUDIO_STREAM_CNT; i++) { 2292 snprintf(buffer, SIZE, " %02zu ", i); 2293 write(fd, buffer, strlen(buffer)); 2294 mStreams[i].dump(fd); 2295 } 2296 2297 snprintf(buffer, SIZE, "\nTotal Effects CPU: %f MIPS, Total Effects memory: %d KB\n", 2298 (float)mTotalEffectsCpuLoad/10, mTotalEffectsMemory); 2299 write(fd, buffer, strlen(buffer)); 2300 2301 snprintf(buffer, SIZE, "Registered effects:\n"); 2302 write(fd, buffer, strlen(buffer)); 2303 for (size_t i = 0; i < mEffects.size(); i++) { 2304 snprintf(buffer, SIZE, "- Effect %d dump:\n", mEffects.keyAt(i)); 2305 write(fd, buffer, strlen(buffer)); 2306 mEffects.valueAt(i)->dump(fd); 2307 } 2308 2309 snprintf(buffer, SIZE, "\nAudio Patches:\n"); 2310 write(fd, buffer, strlen(buffer)); 2311 for (size_t i = 0; i < mAudioPatches.size(); i++) { 2312 mAudioPatches[i]->dump(fd, 2, i); 2313 } 2314 2315 return NO_ERROR; 2316} 2317 2318// This function checks for the parameters which can be offloaded. 2319// This can be enhanced depending on the capability of the DSP and policy 2320// of the system. 2321bool AudioPolicyManager::isOffloadSupported(const audio_offload_info_t& offloadInfo) 2322{ 2323 ALOGV("isOffloadSupported: SR=%u, CM=0x%x, Format=0x%x, StreamType=%d," 2324 " BitRate=%u, duration=%" PRId64 " us, has_video=%d", 2325 offloadInfo.sample_rate, offloadInfo.channel_mask, 2326 offloadInfo.format, 2327 offloadInfo.stream_type, offloadInfo.bit_rate, offloadInfo.duration_us, 2328 offloadInfo.has_video); 2329 2330 // Check if offload has been disabled 2331 char propValue[PROPERTY_VALUE_MAX]; 2332 if (property_get("audio.offload.disable", propValue, "0")) { 2333 if (atoi(propValue) != 0) { 2334 ALOGV("offload disabled by audio.offload.disable=%s", propValue ); 2335 return false; 2336 } 2337 } 2338 2339 // Check if stream type is music, then only allow offload as of now. 2340 if (offloadInfo.stream_type != AUDIO_STREAM_MUSIC) 2341 { 2342 ALOGV("isOffloadSupported: stream_type != MUSIC, returning false"); 2343 return false; 2344 } 2345 2346 //TODO: enable audio offloading with video when ready 2347 if (offloadInfo.has_video) 2348 { 2349 ALOGV("isOffloadSupported: has_video == true, returning false"); 2350 return false; 2351 } 2352 2353 //If duration is less than minimum value defined in property, return false 2354 if (property_get("audio.offload.min.duration.secs", propValue, NULL)) { 2355 if (offloadInfo.duration_us < (atoi(propValue) * 1000000 )) { 2356 ALOGV("Offload denied by duration < audio.offload.min.duration.secs(=%s)", propValue); 2357 return false; 2358 } 2359 } else if (offloadInfo.duration_us < OFFLOAD_DEFAULT_MIN_DURATION_SECS * 1000000) { 2360 ALOGV("Offload denied by duration < default min(=%u)", OFFLOAD_DEFAULT_MIN_DURATION_SECS); 2361 return false; 2362 } 2363 2364 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 2365 // creating an offloaded track and tearing it down immediately after start when audioflinger 2366 // detects there is an active non offloadable effect. 2367 // FIXME: We should check the audio session here but we do not have it in this context. 2368 // This may prevent offloading in rare situations where effects are left active by apps 2369 // in the background. 2370 if (isNonOffloadableEffectEnabled()) { 2371 return false; 2372 } 2373 2374 // See if there is a profile to support this. 2375 // AUDIO_DEVICE_NONE 2376 sp<IOProfile> profile = getProfileForDirectOutput(AUDIO_DEVICE_NONE /*ignore device */, 2377 offloadInfo.sample_rate, 2378 offloadInfo.format, 2379 offloadInfo.channel_mask, 2380 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD); 2381 ALOGV("isOffloadSupported() profile %sfound", profile != 0 ? "" : "NOT "); 2382 return (profile != 0); 2383} 2384 2385status_t AudioPolicyManager::listAudioPorts(audio_port_role_t role, 2386 audio_port_type_t type, 2387 unsigned int *num_ports, 2388 struct audio_port *ports, 2389 unsigned int *generation) 2390{ 2391 if (num_ports == NULL || (*num_ports != 0 && ports == NULL) || 2392 generation == NULL) { 2393 return BAD_VALUE; 2394 } 2395 ALOGV("listAudioPorts() role %d type %d num_ports %d ports %p", role, type, *num_ports, ports); 2396 if (ports == NULL) { 2397 *num_ports = 0; 2398 } 2399 2400 size_t portsWritten = 0; 2401 size_t portsMax = *num_ports; 2402 *num_ports = 0; 2403 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_DEVICE) { 2404 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 2405 for (size_t i = 0; 2406 i < mAvailableOutputDevices.size() && portsWritten < portsMax; i++) { 2407 mAvailableOutputDevices[i]->toAudioPort(&ports[portsWritten++]); 2408 } 2409 *num_ports += mAvailableOutputDevices.size(); 2410 } 2411 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 2412 for (size_t i = 0; 2413 i < mAvailableInputDevices.size() && portsWritten < portsMax; i++) { 2414 mAvailableInputDevices[i]->toAudioPort(&ports[portsWritten++]); 2415 } 2416 *num_ports += mAvailableInputDevices.size(); 2417 } 2418 } 2419 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_MIX) { 2420 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 2421 for (size_t i = 0; i < mInputs.size() && portsWritten < portsMax; i++) { 2422 mInputs[i]->toAudioPort(&ports[portsWritten++]); 2423 } 2424 *num_ports += mInputs.size(); 2425 } 2426 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 2427 size_t numOutputs = 0; 2428 for (size_t i = 0; i < mOutputs.size(); i++) { 2429 if (!mOutputs[i]->isDuplicated()) { 2430 numOutputs++; 2431 if (portsWritten < portsMax) { 2432 mOutputs[i]->toAudioPort(&ports[portsWritten++]); 2433 } 2434 } 2435 } 2436 *num_ports += numOutputs; 2437 } 2438 } 2439 *generation = curAudioPortGeneration(); 2440 ALOGV("listAudioPorts() got %zu ports needed %d", portsWritten, *num_ports); 2441 return NO_ERROR; 2442} 2443 2444status_t AudioPolicyManager::getAudioPort(struct audio_port *port __unused) 2445{ 2446 return NO_ERROR; 2447} 2448 2449sp<AudioPolicyManager::AudioOutputDescriptor> AudioPolicyManager::getOutputFromId( 2450 audio_port_handle_t id) const 2451{ 2452 sp<AudioOutputDescriptor> outputDesc = NULL; 2453 for (size_t i = 0; i < mOutputs.size(); i++) { 2454 outputDesc = mOutputs.valueAt(i); 2455 if (outputDesc->mId == id) { 2456 break; 2457 } 2458 } 2459 return outputDesc; 2460} 2461 2462sp<AudioPolicyManager::AudioInputDescriptor> AudioPolicyManager::getInputFromId( 2463 audio_port_handle_t id) const 2464{ 2465 sp<AudioInputDescriptor> inputDesc = NULL; 2466 for (size_t i = 0; i < mInputs.size(); i++) { 2467 inputDesc = mInputs.valueAt(i); 2468 if (inputDesc->mId == id) { 2469 break; 2470 } 2471 } 2472 return inputDesc; 2473} 2474 2475sp <AudioPolicyManager::HwModule> AudioPolicyManager::getModuleForDevice( 2476 audio_devices_t device) const 2477{ 2478 sp <HwModule> module; 2479 2480 for (size_t i = 0; i < mHwModules.size(); i++) { 2481 if (mHwModules[i]->mHandle == 0) { 2482 continue; 2483 } 2484 if (audio_is_output_device(device)) { 2485 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 2486 { 2487 if (mHwModules[i]->mOutputProfiles[j]->mSupportedDevices.types() & device) { 2488 return mHwModules[i]; 2489 } 2490 } 2491 } else { 2492 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) { 2493 if (mHwModules[i]->mInputProfiles[j]->mSupportedDevices.types() & 2494 device & ~AUDIO_DEVICE_BIT_IN) { 2495 return mHwModules[i]; 2496 } 2497 } 2498 } 2499 } 2500 return module; 2501} 2502 2503sp <AudioPolicyManager::HwModule> AudioPolicyManager::getModuleFromName(const char *name) const 2504{ 2505 sp <HwModule> module; 2506 2507 for (size_t i = 0; i < mHwModules.size(); i++) 2508 { 2509 if (strcmp(mHwModules[i]->mName, name) == 0) { 2510 return mHwModules[i]; 2511 } 2512 } 2513 return module; 2514} 2515 2516audio_devices_t AudioPolicyManager::availablePrimaryOutputDevices() 2517{ 2518 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 2519 audio_devices_t devices = outputDesc->mProfile->mSupportedDevices.types(); 2520 return devices & mAvailableOutputDevices.types(); 2521} 2522 2523audio_devices_t AudioPolicyManager::availablePrimaryInputDevices() 2524{ 2525 audio_module_handle_t primaryHandle = 2526 mOutputs.valueFor(mPrimaryOutput)->mProfile->mModule->mHandle; 2527 audio_devices_t devices = AUDIO_DEVICE_NONE; 2528 for (size_t i = 0; i < mAvailableInputDevices.size(); i++) { 2529 if (mAvailableInputDevices[i]->mModule->mHandle == primaryHandle) { 2530 devices |= mAvailableInputDevices[i]->mDeviceType; 2531 } 2532 } 2533 return devices; 2534} 2535 2536status_t AudioPolicyManager::createAudioPatch(const struct audio_patch *patch, 2537 audio_patch_handle_t *handle, 2538 uid_t uid) 2539{ 2540 ALOGV("createAudioPatch()"); 2541 2542 if (handle == NULL || patch == NULL) { 2543 return BAD_VALUE; 2544 } 2545 ALOGV("createAudioPatch() num sources %d num sinks %d", patch->num_sources, patch->num_sinks); 2546 2547 if (patch->num_sources == 0 || patch->num_sources > AUDIO_PATCH_PORTS_MAX || 2548 patch->num_sinks == 0 || patch->num_sinks > AUDIO_PATCH_PORTS_MAX) { 2549 return BAD_VALUE; 2550 } 2551 // only one source per audio patch supported for now 2552 if (patch->num_sources > 1) { 2553 return INVALID_OPERATION; 2554 } 2555 2556 if (patch->sources[0].role != AUDIO_PORT_ROLE_SOURCE) { 2557 return INVALID_OPERATION; 2558 } 2559 for (size_t i = 0; i < patch->num_sinks; i++) { 2560 if (patch->sinks[i].role != AUDIO_PORT_ROLE_SINK) { 2561 return INVALID_OPERATION; 2562 } 2563 } 2564 2565 sp<AudioPatch> patchDesc; 2566 ssize_t index = mAudioPatches.indexOfKey(*handle); 2567 2568 ALOGV("createAudioPatch source id %d role %d type %d", patch->sources[0].id, 2569 patch->sources[0].role, 2570 patch->sources[0].type); 2571#if LOG_NDEBUG == 0 2572 for (size_t i = 0; i < patch->num_sinks; i++) { 2573 ALOGV("createAudioPatch sink %d: id %d role %d type %d", i, patch->sinks[i].id, 2574 patch->sinks[i].role, 2575 patch->sinks[i].type); 2576 } 2577#endif 2578 2579 if (index >= 0) { 2580 patchDesc = mAudioPatches.valueAt(index); 2581 ALOGV("createAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 2582 mUidCached, patchDesc->mUid, uid); 2583 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 2584 return INVALID_OPERATION; 2585 } 2586 } else { 2587 *handle = 0; 2588 } 2589 2590 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 2591 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(patch->sources[0].id); 2592 if (outputDesc == NULL) { 2593 ALOGV("createAudioPatch() output not found for id %d", patch->sources[0].id); 2594 return BAD_VALUE; 2595 } 2596 ALOG_ASSERT(!outputDesc->isDuplicated(),"duplicated output %d in source in ports", 2597 outputDesc->mIoHandle); 2598 if (patchDesc != 0) { 2599 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 2600 ALOGV("createAudioPatch() source id differs for patch current id %d new id %d", 2601 patchDesc->mPatch.sources[0].id, patch->sources[0].id); 2602 return BAD_VALUE; 2603 } 2604 } 2605 DeviceVector devices; 2606 for (size_t i = 0; i < patch->num_sinks; i++) { 2607 // Only support mix to devices connection 2608 // TODO add support for mix to mix connection 2609 if (patch->sinks[i].type != AUDIO_PORT_TYPE_DEVICE) { 2610 ALOGV("createAudioPatch() source mix but sink is not a device"); 2611 return INVALID_OPERATION; 2612 } 2613 sp<DeviceDescriptor> devDesc = 2614 mAvailableOutputDevices.getDeviceFromId(patch->sinks[i].id); 2615 if (devDesc == 0) { 2616 ALOGV("createAudioPatch() out device not found for id %d", patch->sinks[i].id); 2617 return BAD_VALUE; 2618 } 2619 2620 if (!outputDesc->mProfile->isCompatibleProfile(devDesc->mDeviceType, 2621 devDesc->mAddress, 2622 patch->sources[0].sample_rate, 2623 NULL, // updatedSamplingRate 2624 patch->sources[0].format, 2625 patch->sources[0].channel_mask, 2626 AUDIO_OUTPUT_FLAG_NONE /*FIXME*/)) { 2627 ALOGV("createAudioPatch() profile not supported for device %08x", 2628 devDesc->mDeviceType); 2629 return INVALID_OPERATION; 2630 } 2631 devices.add(devDesc); 2632 } 2633 if (devices.size() == 0) { 2634 return INVALID_OPERATION; 2635 } 2636 2637 // TODO: reconfigure output format and channels here 2638 ALOGV("createAudioPatch() setting device %08x on output %d", 2639 devices.types(), outputDesc->mIoHandle); 2640 setOutputDevice(outputDesc->mIoHandle, devices.types(), true, 0, handle); 2641 index = mAudioPatches.indexOfKey(*handle); 2642 if (index >= 0) { 2643 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 2644 ALOGW("createAudioPatch() setOutputDevice() did not reuse the patch provided"); 2645 } 2646 patchDesc = mAudioPatches.valueAt(index); 2647 patchDesc->mUid = uid; 2648 ALOGV("createAudioPatch() success"); 2649 } else { 2650 ALOGW("createAudioPatch() setOutputDevice() failed to create a patch"); 2651 return INVALID_OPERATION; 2652 } 2653 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 2654 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 2655 // input device to input mix connection 2656 // only one sink supported when connecting an input device to a mix 2657 if (patch->num_sinks > 1) { 2658 return INVALID_OPERATION; 2659 } 2660 sp<AudioInputDescriptor> inputDesc = getInputFromId(patch->sinks[0].id); 2661 if (inputDesc == NULL) { 2662 return BAD_VALUE; 2663 } 2664 if (patchDesc != 0) { 2665 if (patchDesc->mPatch.sinks[0].id != patch->sinks[0].id) { 2666 return BAD_VALUE; 2667 } 2668 } 2669 sp<DeviceDescriptor> devDesc = 2670 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 2671 if (devDesc == 0) { 2672 return BAD_VALUE; 2673 } 2674 2675 if (!inputDesc->mProfile->isCompatibleProfile(devDesc->mDeviceType, 2676 devDesc->mAddress, 2677 patch->sinks[0].sample_rate, 2678 NULL, /*updatedSampleRate*/ 2679 patch->sinks[0].format, 2680 patch->sinks[0].channel_mask, 2681 // FIXME for the parameter type, 2682 // and the NONE 2683 (audio_output_flags_t) 2684 AUDIO_INPUT_FLAG_NONE)) { 2685 return INVALID_OPERATION; 2686 } 2687 // TODO: reconfigure output format and channels here 2688 ALOGV("createAudioPatch() setting device %08x on output %d", 2689 devDesc->mDeviceType, inputDesc->mIoHandle); 2690 setInputDevice(inputDesc->mIoHandle, devDesc->mDeviceType, true, handle); 2691 index = mAudioPatches.indexOfKey(*handle); 2692 if (index >= 0) { 2693 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 2694 ALOGW("createAudioPatch() setInputDevice() did not reuse the patch provided"); 2695 } 2696 patchDesc = mAudioPatches.valueAt(index); 2697 patchDesc->mUid = uid; 2698 ALOGV("createAudioPatch() success"); 2699 } else { 2700 ALOGW("createAudioPatch() setInputDevice() failed to create a patch"); 2701 return INVALID_OPERATION; 2702 } 2703 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2704 // device to device connection 2705 if (patchDesc != 0) { 2706 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 2707 return BAD_VALUE; 2708 } 2709 } 2710 sp<DeviceDescriptor> srcDeviceDesc = 2711 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 2712 if (srcDeviceDesc == 0) { 2713 return BAD_VALUE; 2714 } 2715 2716 //update source and sink with our own data as the data passed in the patch may 2717 // be incomplete. 2718 struct audio_patch newPatch = *patch; 2719 srcDeviceDesc->toAudioPortConfig(&newPatch.sources[0], &patch->sources[0]); 2720 2721 for (size_t i = 0; i < patch->num_sinks; i++) { 2722 if (patch->sinks[i].type != AUDIO_PORT_TYPE_DEVICE) { 2723 ALOGV("createAudioPatch() source device but one sink is not a device"); 2724 return INVALID_OPERATION; 2725 } 2726 2727 sp<DeviceDescriptor> sinkDeviceDesc = 2728 mAvailableOutputDevices.getDeviceFromId(patch->sinks[i].id); 2729 if (sinkDeviceDesc == 0) { 2730 return BAD_VALUE; 2731 } 2732 sinkDeviceDesc->toAudioPortConfig(&newPatch.sinks[i], &patch->sinks[i]); 2733 2734 if (srcDeviceDesc->mModule != sinkDeviceDesc->mModule) { 2735 // only one sink supported when connected devices across HW modules 2736 if (patch->num_sinks > 1) { 2737 return INVALID_OPERATION; 2738 } 2739 SortedVector<audio_io_handle_t> outputs = 2740 getOutputsForDevice(sinkDeviceDesc->mDeviceType, 2741 mOutputs); 2742 // if the sink device is reachable via an opened output stream, request to go via 2743 // this output stream by adding a second source to the patch description 2744 audio_io_handle_t output = selectOutput(outputs, 2745 AUDIO_OUTPUT_FLAG_NONE, 2746 AUDIO_FORMAT_INVALID); 2747 if (output != AUDIO_IO_HANDLE_NONE) { 2748 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 2749 if (outputDesc->isDuplicated()) { 2750 return INVALID_OPERATION; 2751 } 2752 outputDesc->toAudioPortConfig(&newPatch.sources[1], &patch->sources[0]); 2753 newPatch.num_sources = 2; 2754 } 2755 } 2756 } 2757 // TODO: check from routing capabilities in config file and other conflicting patches 2758 2759 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 2760 if (index >= 0) { 2761 afPatchHandle = patchDesc->mAfPatchHandle; 2762 } 2763 2764 status_t status = mpClientInterface->createAudioPatch(&newPatch, 2765 &afPatchHandle, 2766 0); 2767 ALOGV("createAudioPatch() patch panel returned %d patchHandle %d", 2768 status, afPatchHandle); 2769 if (status == NO_ERROR) { 2770 if (index < 0) { 2771 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 2772 &newPatch, uid); 2773 addAudioPatch(patchDesc->mHandle, patchDesc); 2774 } else { 2775 patchDesc->mPatch = newPatch; 2776 } 2777 patchDesc->mAfPatchHandle = afPatchHandle; 2778 *handle = patchDesc->mHandle; 2779 nextAudioPortGeneration(); 2780 mpClientInterface->onAudioPatchListUpdate(); 2781 } else { 2782 ALOGW("createAudioPatch() patch panel could not connect device patch, error %d", 2783 status); 2784 return INVALID_OPERATION; 2785 } 2786 } else { 2787 return BAD_VALUE; 2788 } 2789 } else { 2790 return BAD_VALUE; 2791 } 2792 return NO_ERROR; 2793} 2794 2795status_t AudioPolicyManager::releaseAudioPatch(audio_patch_handle_t handle, 2796 uid_t uid) 2797{ 2798 ALOGV("releaseAudioPatch() patch %d", handle); 2799 2800 ssize_t index = mAudioPatches.indexOfKey(handle); 2801 2802 if (index < 0) { 2803 return BAD_VALUE; 2804 } 2805 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 2806 ALOGV("releaseAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 2807 mUidCached, patchDesc->mUid, uid); 2808 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 2809 return INVALID_OPERATION; 2810 } 2811 2812 struct audio_patch *patch = &patchDesc->mPatch; 2813 patchDesc->mUid = mUidCached; 2814 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 2815 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(patch->sources[0].id); 2816 if (outputDesc == NULL) { 2817 ALOGV("releaseAudioPatch() output not found for id %d", patch->sources[0].id); 2818 return BAD_VALUE; 2819 } 2820 2821 setOutputDevice(outputDesc->mIoHandle, 2822 getNewOutputDevice(outputDesc->mIoHandle, true /*fromCache*/), 2823 true, 2824 0, 2825 NULL); 2826 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 2827 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 2828 sp<AudioInputDescriptor> inputDesc = getInputFromId(patch->sinks[0].id); 2829 if (inputDesc == NULL) { 2830 ALOGV("releaseAudioPatch() input not found for id %d", patch->sinks[0].id); 2831 return BAD_VALUE; 2832 } 2833 setInputDevice(inputDesc->mIoHandle, 2834 getNewInputDevice(inputDesc->mIoHandle), 2835 true, 2836 NULL); 2837 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2838 audio_patch_handle_t afPatchHandle = patchDesc->mAfPatchHandle; 2839 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 2840 ALOGV("releaseAudioPatch() patch panel returned %d patchHandle %d", 2841 status, patchDesc->mAfPatchHandle); 2842 removeAudioPatch(patchDesc->mHandle); 2843 nextAudioPortGeneration(); 2844 mpClientInterface->onAudioPatchListUpdate(); 2845 } else { 2846 return BAD_VALUE; 2847 } 2848 } else { 2849 return BAD_VALUE; 2850 } 2851 return NO_ERROR; 2852} 2853 2854status_t AudioPolicyManager::listAudioPatches(unsigned int *num_patches, 2855 struct audio_patch *patches, 2856 unsigned int *generation) 2857{ 2858 if (num_patches == NULL || (*num_patches != 0 && patches == NULL) || 2859 generation == NULL) { 2860 return BAD_VALUE; 2861 } 2862 ALOGV("listAudioPatches() num_patches %d patches %p available patches %zu", 2863 *num_patches, patches, mAudioPatches.size()); 2864 if (patches == NULL) { 2865 *num_patches = 0; 2866 } 2867 2868 size_t patchesWritten = 0; 2869 size_t patchesMax = *num_patches; 2870 for (size_t i = 0; 2871 i < mAudioPatches.size() && patchesWritten < patchesMax; i++) { 2872 patches[patchesWritten] = mAudioPatches[i]->mPatch; 2873 patches[patchesWritten++].id = mAudioPatches[i]->mHandle; 2874 ALOGV("listAudioPatches() patch %zu num_sources %d num_sinks %d", 2875 i, mAudioPatches[i]->mPatch.num_sources, mAudioPatches[i]->mPatch.num_sinks); 2876 } 2877 *num_patches = mAudioPatches.size(); 2878 2879 *generation = curAudioPortGeneration(); 2880 ALOGV("listAudioPatches() got %zu patches needed %d", patchesWritten, *num_patches); 2881 return NO_ERROR; 2882} 2883 2884status_t AudioPolicyManager::setAudioPortConfig(const struct audio_port_config *config) 2885{ 2886 ALOGV("setAudioPortConfig()"); 2887 2888 if (config == NULL) { 2889 return BAD_VALUE; 2890 } 2891 ALOGV("setAudioPortConfig() on port handle %d", config->id); 2892 // Only support gain configuration for now 2893 if (config->config_mask != AUDIO_PORT_CONFIG_GAIN) { 2894 return INVALID_OPERATION; 2895 } 2896 2897 sp<AudioPortConfig> audioPortConfig; 2898 if (config->type == AUDIO_PORT_TYPE_MIX) { 2899 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2900 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(config->id); 2901 if (outputDesc == NULL) { 2902 return BAD_VALUE; 2903 } 2904 ALOG_ASSERT(!outputDesc->isDuplicated(), 2905 "setAudioPortConfig() called on duplicated output %d", 2906 outputDesc->mIoHandle); 2907 audioPortConfig = outputDesc; 2908 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2909 sp<AudioInputDescriptor> inputDesc = getInputFromId(config->id); 2910 if (inputDesc == NULL) { 2911 return BAD_VALUE; 2912 } 2913 audioPortConfig = inputDesc; 2914 } else { 2915 return BAD_VALUE; 2916 } 2917 } else if (config->type == AUDIO_PORT_TYPE_DEVICE) { 2918 sp<DeviceDescriptor> deviceDesc; 2919 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2920 deviceDesc = mAvailableInputDevices.getDeviceFromId(config->id); 2921 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2922 deviceDesc = mAvailableOutputDevices.getDeviceFromId(config->id); 2923 } else { 2924 return BAD_VALUE; 2925 } 2926 if (deviceDesc == NULL) { 2927 return BAD_VALUE; 2928 } 2929 audioPortConfig = deviceDesc; 2930 } else { 2931 return BAD_VALUE; 2932 } 2933 2934 struct audio_port_config backupConfig; 2935 status_t status = audioPortConfig->applyAudioPortConfig(config, &backupConfig); 2936 if (status == NO_ERROR) { 2937 struct audio_port_config newConfig; 2938 audioPortConfig->toAudioPortConfig(&newConfig, config); 2939 status = mpClientInterface->setAudioPortConfig(&newConfig, 0); 2940 } 2941 if (status != NO_ERROR) { 2942 audioPortConfig->applyAudioPortConfig(&backupConfig); 2943 } 2944 2945 return status; 2946} 2947 2948void AudioPolicyManager::clearAudioPatches(uid_t uid) 2949{ 2950 for (ssize_t i = (ssize_t)mAudioPatches.size() - 1; i >= 0; i--) { 2951 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(i); 2952 if (patchDesc->mUid == uid) { 2953 releaseAudioPatch(mAudioPatches.keyAt(i), uid); 2954 } 2955 } 2956} 2957 2958status_t AudioPolicyManager::acquireSoundTriggerSession(audio_session_t *session, 2959 audio_io_handle_t *ioHandle, 2960 audio_devices_t *device) 2961{ 2962 *session = (audio_session_t)mpClientInterface->newAudioUniqueId(); 2963 *ioHandle = (audio_io_handle_t)mpClientInterface->newAudioUniqueId(); 2964 *device = getDeviceAndMixForInputSource(AUDIO_SOURCE_HOTWORD); 2965 2966 mSoundTriggerSessions.add(*session, *ioHandle); 2967 2968 return NO_ERROR; 2969} 2970 2971status_t AudioPolicyManager::releaseSoundTriggerSession(audio_session_t session) 2972{ 2973 ssize_t index = mSoundTriggerSessions.indexOfKey(session); 2974 if (index < 0) { 2975 ALOGW("acquireSoundTriggerSession() session %d not registered", session); 2976 return BAD_VALUE; 2977 } 2978 2979 mSoundTriggerSessions.removeItem(session); 2980 return NO_ERROR; 2981} 2982 2983status_t AudioPolicyManager::addAudioPatch(audio_patch_handle_t handle, 2984 const sp<AudioPatch>& patch) 2985{ 2986 ssize_t index = mAudioPatches.indexOfKey(handle); 2987 2988 if (index >= 0) { 2989 ALOGW("addAudioPatch() patch %d already in", handle); 2990 return ALREADY_EXISTS; 2991 } 2992 mAudioPatches.add(handle, patch); 2993 ALOGV("addAudioPatch() handle %d af handle %d num_sources %d num_sinks %d source handle %d" 2994 "sink handle %d", 2995 handle, patch->mAfPatchHandle, patch->mPatch.num_sources, patch->mPatch.num_sinks, 2996 patch->mPatch.sources[0].id, patch->mPatch.sinks[0].id); 2997 return NO_ERROR; 2998} 2999 3000status_t AudioPolicyManager::removeAudioPatch(audio_patch_handle_t handle) 3001{ 3002 ssize_t index = mAudioPatches.indexOfKey(handle); 3003 3004 if (index < 0) { 3005 ALOGW("removeAudioPatch() patch %d not in", handle); 3006 return ALREADY_EXISTS; 3007 } 3008 ALOGV("removeAudioPatch() handle %d af handle %d", handle, 3009 mAudioPatches.valueAt(index)->mAfPatchHandle); 3010 mAudioPatches.removeItemsAt(index); 3011 return NO_ERROR; 3012} 3013 3014// ---------------------------------------------------------------------------- 3015// AudioPolicyManager 3016// ---------------------------------------------------------------------------- 3017 3018uint32_t AudioPolicyManager::nextUniqueId() 3019{ 3020 return android_atomic_inc(&mNextUniqueId); 3021} 3022 3023uint32_t AudioPolicyManager::nextAudioPortGeneration() 3024{ 3025 return android_atomic_inc(&mAudioPortGeneration); 3026} 3027 3028AudioPolicyManager::AudioPolicyManager(AudioPolicyClientInterface *clientInterface) 3029 : 3030#ifdef AUDIO_POLICY_TEST 3031 Thread(false), 3032#endif //AUDIO_POLICY_TEST 3033 mPrimaryOutput((audio_io_handle_t)0), 3034 mPhoneState(AUDIO_MODE_NORMAL), 3035 mLimitRingtoneVolume(false), mLastVoiceVolume(-1.0f), 3036 mTotalEffectsCpuLoad(0), mTotalEffectsMemory(0), 3037 mA2dpSuspended(false), 3038 mSpeakerDrcEnabled(false), mNextUniqueId(1), 3039 mAudioPortGeneration(1), 3040 mBeaconMuteRefCount(0), 3041 mBeaconPlayingRefCount(0), 3042 mBeaconMuted(false) 3043{ 3044 mUidCached = getuid(); 3045 mpClientInterface = clientInterface; 3046 3047 for (int i = 0; i < AUDIO_POLICY_FORCE_USE_CNT; i++) { 3048 mForceUse[i] = AUDIO_POLICY_FORCE_NONE; 3049 } 3050 3051 mDefaultOutputDevice = new DeviceDescriptor(String8(""), AUDIO_DEVICE_OUT_SPEAKER); 3052 if (loadAudioPolicyConfig(AUDIO_POLICY_VENDOR_CONFIG_FILE) != NO_ERROR) { 3053 if (loadAudioPolicyConfig(AUDIO_POLICY_CONFIG_FILE) != NO_ERROR) { 3054 ALOGE("could not load audio policy configuration file, setting defaults"); 3055 defaultAudioPolicyConfig(); 3056 } 3057 } 3058 // mAvailableOutputDevices and mAvailableInputDevices now contain all attached devices 3059 3060 // must be done after reading the policy 3061 initializeVolumeCurves(); 3062 3063 // open all output streams needed to access attached devices 3064 audio_devices_t outputDeviceTypes = mAvailableOutputDevices.types(); 3065 audio_devices_t inputDeviceTypes = mAvailableInputDevices.types() & ~AUDIO_DEVICE_BIT_IN; 3066 for (size_t i = 0; i < mHwModules.size(); i++) { 3067 mHwModules[i]->mHandle = mpClientInterface->loadHwModule(mHwModules[i]->mName); 3068 if (mHwModules[i]->mHandle == 0) { 3069 ALOGW("could not open HW module %s", mHwModules[i]->mName); 3070 continue; 3071 } 3072 // open all output streams needed to access attached devices 3073 // except for direct output streams that are only opened when they are actually 3074 // required by an app. 3075 // This also validates mAvailableOutputDevices list 3076 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3077 { 3078 const sp<IOProfile> outProfile = mHwModules[i]->mOutputProfiles[j]; 3079 3080 if (outProfile->mSupportedDevices.isEmpty()) { 3081 ALOGW("Output profile contains no device on module %s", mHwModules[i]->mName); 3082 continue; 3083 } 3084 3085 if ((outProfile->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) { 3086 continue; 3087 } 3088 audio_devices_t profileType = outProfile->mSupportedDevices.types(); 3089 if ((profileType & mDefaultOutputDevice->mDeviceType) != AUDIO_DEVICE_NONE) { 3090 profileType = mDefaultOutputDevice->mDeviceType; 3091 } else { 3092 // chose first device present in mSupportedDevices also part of 3093 // outputDeviceTypes 3094 for (size_t k = 0; k < outProfile->mSupportedDevices.size(); k++) { 3095 profileType = outProfile->mSupportedDevices[k]->mDeviceType; 3096 if ((profileType & outputDeviceTypes) != 0) { 3097 break; 3098 } 3099 } 3100 } 3101 if ((profileType & outputDeviceTypes) == 0) { 3102 continue; 3103 } 3104 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(outProfile); 3105 3106 outputDesc->mDevice = profileType; 3107 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3108 config.sample_rate = outputDesc->mSamplingRate; 3109 config.channel_mask = outputDesc->mChannelMask; 3110 config.format = outputDesc->mFormat; 3111 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 3112 status_t status = mpClientInterface->openOutput(outProfile->mModule->mHandle, 3113 &output, 3114 &config, 3115 &outputDesc->mDevice, 3116 String8(""), 3117 &outputDesc->mLatency, 3118 outputDesc->mFlags); 3119 3120 if (status != NO_ERROR) { 3121 ALOGW("Cannot open output stream for device %08x on hw module %s", 3122 outputDesc->mDevice, 3123 mHwModules[i]->mName); 3124 } else { 3125 outputDesc->mSamplingRate = config.sample_rate; 3126 outputDesc->mChannelMask = config.channel_mask; 3127 outputDesc->mFormat = config.format; 3128 3129 for (size_t k = 0; k < outProfile->mSupportedDevices.size(); k++) { 3130 audio_devices_t type = outProfile->mSupportedDevices[k]->mDeviceType; 3131 ssize_t index = 3132 mAvailableOutputDevices.indexOf(outProfile->mSupportedDevices[k]); 3133 // give a valid ID to an attached device once confirmed it is reachable 3134 if ((index >= 0) && (mAvailableOutputDevices[index]->mId == 0)) { 3135 mAvailableOutputDevices[index]->mId = nextUniqueId(); 3136 mAvailableOutputDevices[index]->mModule = mHwModules[i]; 3137 } 3138 } 3139 if (mPrimaryOutput == 0 && 3140 outProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 3141 mPrimaryOutput = output; 3142 } 3143 addOutput(output, outputDesc); 3144 setOutputDevice(output, 3145 outputDesc->mDevice, 3146 true); 3147 } 3148 } 3149 // open input streams needed to access attached devices to validate 3150 // mAvailableInputDevices list 3151 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 3152 { 3153 const sp<IOProfile> inProfile = mHwModules[i]->mInputProfiles[j]; 3154 3155 if (inProfile->mSupportedDevices.isEmpty()) { 3156 ALOGW("Input profile contains no device on module %s", mHwModules[i]->mName); 3157 continue; 3158 } 3159 // chose first device present in mSupportedDevices also part of 3160 // inputDeviceTypes 3161 audio_devices_t profileType = AUDIO_DEVICE_NONE; 3162 for (size_t k = 0; k < inProfile->mSupportedDevices.size(); k++) { 3163 profileType = inProfile->mSupportedDevices[k]->mDeviceType; 3164 if (profileType & inputDeviceTypes) { 3165 break; 3166 } 3167 } 3168 if ((profileType & inputDeviceTypes) == 0) { 3169 continue; 3170 } 3171 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(inProfile); 3172 3173 inputDesc->mInputSource = AUDIO_SOURCE_MIC; 3174 inputDesc->mDevice = profileType; 3175 3176 // find the address 3177 DeviceVector inputDevices = mAvailableInputDevices.getDevicesFromType(profileType); 3178 // the inputs vector must be of size 1, but we don't want to crash here 3179 String8 address = inputDevices.size() > 0 ? inputDevices.itemAt(0)->mAddress 3180 : String8(""); 3181 ALOGV(" for input device 0x%x using address %s", profileType, address.string()); 3182 ALOGE_IF(inputDevices.size() == 0, "Input device list is empty!"); 3183 3184 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3185 config.sample_rate = inputDesc->mSamplingRate; 3186 config.channel_mask = inputDesc->mChannelMask; 3187 config.format = inputDesc->mFormat; 3188 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 3189 status_t status = mpClientInterface->openInput(inProfile->mModule->mHandle, 3190 &input, 3191 &config, 3192 &inputDesc->mDevice, 3193 address, 3194 AUDIO_SOURCE_MIC, 3195 AUDIO_INPUT_FLAG_NONE); 3196 3197 if (status == NO_ERROR) { 3198 for (size_t k = 0; k < inProfile->mSupportedDevices.size(); k++) { 3199 audio_devices_t type = inProfile->mSupportedDevices[k]->mDeviceType; 3200 ssize_t index = 3201 mAvailableInputDevices.indexOf(inProfile->mSupportedDevices[k]); 3202 // give a valid ID to an attached device once confirmed it is reachable 3203 if ((index >= 0) && (mAvailableInputDevices[index]->mId == 0)) { 3204 mAvailableInputDevices[index]->mId = nextUniqueId(); 3205 mAvailableInputDevices[index]->mModule = mHwModules[i]; 3206 } 3207 } 3208 mpClientInterface->closeInput(input); 3209 } else { 3210 ALOGW("Cannot open input stream for device %08x on hw module %s", 3211 inputDesc->mDevice, 3212 mHwModules[i]->mName); 3213 } 3214 } 3215 } 3216 // make sure all attached devices have been allocated a unique ID 3217 for (size_t i = 0; i < mAvailableOutputDevices.size();) { 3218 if (mAvailableOutputDevices[i]->mId == 0) { 3219 ALOGW("Input device %08x unreachable", mAvailableOutputDevices[i]->mDeviceType); 3220 mAvailableOutputDevices.remove(mAvailableOutputDevices[i]); 3221 continue; 3222 } 3223 i++; 3224 } 3225 for (size_t i = 0; i < mAvailableInputDevices.size();) { 3226 if (mAvailableInputDevices[i]->mId == 0) { 3227 ALOGW("Input device %08x unreachable", mAvailableInputDevices[i]->mDeviceType); 3228 mAvailableInputDevices.remove(mAvailableInputDevices[i]); 3229 continue; 3230 } 3231 i++; 3232 } 3233 // make sure default device is reachable 3234 if (mAvailableOutputDevices.indexOf(mDefaultOutputDevice) < 0) { 3235 ALOGE("Default device %08x is unreachable", mDefaultOutputDevice->mDeviceType); 3236 } 3237 3238 ALOGE_IF((mPrimaryOutput == 0), "Failed to open primary output"); 3239 3240 updateDevicesAndOutputs(); 3241 3242#ifdef AUDIO_POLICY_TEST 3243 if (mPrimaryOutput != 0) { 3244 AudioParameter outputCmd = AudioParameter(); 3245 outputCmd.addInt(String8("set_id"), 0); 3246 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 3247 3248 mTestDevice = AUDIO_DEVICE_OUT_SPEAKER; 3249 mTestSamplingRate = 44100; 3250 mTestFormat = AUDIO_FORMAT_PCM_16_BIT; 3251 mTestChannels = AUDIO_CHANNEL_OUT_STEREO; 3252 mTestLatencyMs = 0; 3253 mCurOutput = 0; 3254 mDirectOutput = false; 3255 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 3256 mTestOutputs[i] = 0; 3257 } 3258 3259 const size_t SIZE = 256; 3260 char buffer[SIZE]; 3261 snprintf(buffer, SIZE, "AudioPolicyManagerTest"); 3262 run(buffer, ANDROID_PRIORITY_AUDIO); 3263 } 3264#endif //AUDIO_POLICY_TEST 3265} 3266 3267AudioPolicyManager::~AudioPolicyManager() 3268{ 3269#ifdef AUDIO_POLICY_TEST 3270 exit(); 3271#endif //AUDIO_POLICY_TEST 3272 for (size_t i = 0; i < mOutputs.size(); i++) { 3273 mpClientInterface->closeOutput(mOutputs.keyAt(i)); 3274 } 3275 for (size_t i = 0; i < mInputs.size(); i++) { 3276 mpClientInterface->closeInput(mInputs.keyAt(i)); 3277 } 3278 mAvailableOutputDevices.clear(); 3279 mAvailableInputDevices.clear(); 3280 mOutputs.clear(); 3281 mInputs.clear(); 3282 mHwModules.clear(); 3283} 3284 3285status_t AudioPolicyManager::initCheck() 3286{ 3287 return (mPrimaryOutput == 0) ? NO_INIT : NO_ERROR; 3288} 3289 3290#ifdef AUDIO_POLICY_TEST 3291bool AudioPolicyManager::threadLoop() 3292{ 3293 ALOGV("entering threadLoop()"); 3294 while (!exitPending()) 3295 { 3296 String8 command; 3297 int valueInt; 3298 String8 value; 3299 3300 Mutex::Autolock _l(mLock); 3301 mWaitWorkCV.waitRelative(mLock, milliseconds(50)); 3302 3303 command = mpClientInterface->getParameters(0, String8("test_cmd_policy")); 3304 AudioParameter param = AudioParameter(command); 3305 3306 if (param.getInt(String8("test_cmd_policy"), valueInt) == NO_ERROR && 3307 valueInt != 0) { 3308 ALOGV("Test command %s received", command.string()); 3309 String8 target; 3310 if (param.get(String8("target"), target) != NO_ERROR) { 3311 target = "Manager"; 3312 } 3313 if (param.getInt(String8("test_cmd_policy_output"), valueInt) == NO_ERROR) { 3314 param.remove(String8("test_cmd_policy_output")); 3315 mCurOutput = valueInt; 3316 } 3317 if (param.get(String8("test_cmd_policy_direct"), value) == NO_ERROR) { 3318 param.remove(String8("test_cmd_policy_direct")); 3319 if (value == "false") { 3320 mDirectOutput = false; 3321 } else if (value == "true") { 3322 mDirectOutput = true; 3323 } 3324 } 3325 if (param.getInt(String8("test_cmd_policy_input"), valueInt) == NO_ERROR) { 3326 param.remove(String8("test_cmd_policy_input")); 3327 mTestInput = valueInt; 3328 } 3329 3330 if (param.get(String8("test_cmd_policy_format"), value) == NO_ERROR) { 3331 param.remove(String8("test_cmd_policy_format")); 3332 int format = AUDIO_FORMAT_INVALID; 3333 if (value == "PCM 16 bits") { 3334 format = AUDIO_FORMAT_PCM_16_BIT; 3335 } else if (value == "PCM 8 bits") { 3336 format = AUDIO_FORMAT_PCM_8_BIT; 3337 } else if (value == "Compressed MP3") { 3338 format = AUDIO_FORMAT_MP3; 3339 } 3340 if (format != AUDIO_FORMAT_INVALID) { 3341 if (target == "Manager") { 3342 mTestFormat = format; 3343 } else if (mTestOutputs[mCurOutput] != 0) { 3344 AudioParameter outputParam = AudioParameter(); 3345 outputParam.addInt(String8("format"), format); 3346 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 3347 } 3348 } 3349 } 3350 if (param.get(String8("test_cmd_policy_channels"), value) == NO_ERROR) { 3351 param.remove(String8("test_cmd_policy_channels")); 3352 int channels = 0; 3353 3354 if (value == "Channels Stereo") { 3355 channels = AUDIO_CHANNEL_OUT_STEREO; 3356 } else if (value == "Channels Mono") { 3357 channels = AUDIO_CHANNEL_OUT_MONO; 3358 } 3359 if (channels != 0) { 3360 if (target == "Manager") { 3361 mTestChannels = channels; 3362 } else if (mTestOutputs[mCurOutput] != 0) { 3363 AudioParameter outputParam = AudioParameter(); 3364 outputParam.addInt(String8("channels"), channels); 3365 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 3366 } 3367 } 3368 } 3369 if (param.getInt(String8("test_cmd_policy_sampleRate"), valueInt) == NO_ERROR) { 3370 param.remove(String8("test_cmd_policy_sampleRate")); 3371 if (valueInt >= 0 && valueInt <= 96000) { 3372 int samplingRate = valueInt; 3373 if (target == "Manager") { 3374 mTestSamplingRate = samplingRate; 3375 } else if (mTestOutputs[mCurOutput] != 0) { 3376 AudioParameter outputParam = AudioParameter(); 3377 outputParam.addInt(String8("sampling_rate"), samplingRate); 3378 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 3379 } 3380 } 3381 } 3382 3383 if (param.get(String8("test_cmd_policy_reopen"), value) == NO_ERROR) { 3384 param.remove(String8("test_cmd_policy_reopen")); 3385 3386 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 3387 mpClientInterface->closeOutput(mPrimaryOutput); 3388 3389 audio_module_handle_t moduleHandle = outputDesc->mModule->mHandle; 3390 3391 mOutputs.removeItem(mPrimaryOutput); 3392 3393 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(NULL); 3394 outputDesc->mDevice = AUDIO_DEVICE_OUT_SPEAKER; 3395 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3396 config.sample_rate = outputDesc->mSamplingRate; 3397 config.channel_mask = outputDesc->mChannelMask; 3398 config.format = outputDesc->mFormat; 3399 status_t status = mpClientInterface->openOutput(moduleHandle, 3400 &mPrimaryOutput, 3401 &config, 3402 &outputDesc->mDevice, 3403 String8(""), 3404 &outputDesc->mLatency, 3405 outputDesc->mFlags); 3406 if (status != NO_ERROR) { 3407 ALOGE("Failed to reopen hardware output stream, " 3408 "samplingRate: %d, format %d, channels %d", 3409 outputDesc->mSamplingRate, outputDesc->mFormat, outputDesc->mChannelMask); 3410 } else { 3411 outputDesc->mSamplingRate = config.sample_rate; 3412 outputDesc->mChannelMask = config.channel_mask; 3413 outputDesc->mFormat = config.format; 3414 AudioParameter outputCmd = AudioParameter(); 3415 outputCmd.addInt(String8("set_id"), 0); 3416 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 3417 addOutput(mPrimaryOutput, outputDesc); 3418 } 3419 } 3420 3421 3422 mpClientInterface->setParameters(0, String8("test_cmd_policy=")); 3423 } 3424 } 3425 return false; 3426} 3427 3428void AudioPolicyManager::exit() 3429{ 3430 { 3431 AutoMutex _l(mLock); 3432 requestExit(); 3433 mWaitWorkCV.signal(); 3434 } 3435 requestExitAndWait(); 3436} 3437 3438int AudioPolicyManager::testOutputIndex(audio_io_handle_t output) 3439{ 3440 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 3441 if (output == mTestOutputs[i]) return i; 3442 } 3443 return 0; 3444} 3445#endif //AUDIO_POLICY_TEST 3446 3447// --- 3448 3449void AudioPolicyManager::addOutput(audio_io_handle_t output, sp<AudioOutputDescriptor> outputDesc) 3450{ 3451 outputDesc->mIoHandle = output; 3452 outputDesc->mId = nextUniqueId(); 3453 mOutputs.add(output, outputDesc); 3454 nextAudioPortGeneration(); 3455} 3456 3457void AudioPolicyManager::addInput(audio_io_handle_t input, sp<AudioInputDescriptor> inputDesc) 3458{ 3459 inputDesc->mIoHandle = input; 3460 inputDesc->mId = nextUniqueId(); 3461 mInputs.add(input, inputDesc); 3462 nextAudioPortGeneration(); 3463} 3464 3465void AudioPolicyManager::findIoHandlesByAddress(sp<AudioOutputDescriptor> desc /*in*/, 3466 const audio_devices_t device /*in*/, 3467 const String8 address /*in*/, 3468 SortedVector<audio_io_handle_t>& outputs /*out*/) { 3469 sp<DeviceDescriptor> devDesc = 3470 desc->mProfile->mSupportedDevices.getDevice(device, address); 3471 if (devDesc != 0) { 3472 ALOGV("findIoHandlesByAddress(): adding opened output %d on same address %s", 3473 desc->mIoHandle, address.string()); 3474 outputs.add(desc->mIoHandle); 3475 } 3476} 3477 3478status_t AudioPolicyManager::checkOutputsForDevice(const sp<DeviceDescriptor> devDesc, 3479 audio_policy_dev_state_t state, 3480 SortedVector<audio_io_handle_t>& outputs, 3481 const String8 address) 3482{ 3483 audio_devices_t device = devDesc->mDeviceType; 3484 sp<AudioOutputDescriptor> desc; 3485 // erase all current sample rates, formats and channel masks 3486 devDesc->clearCapabilities(); 3487 3488 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 3489 // first list already open outputs that can be routed to this device 3490 for (size_t i = 0; i < mOutputs.size(); i++) { 3491 desc = mOutputs.valueAt(i); 3492 if (!desc->isDuplicated() && (desc->mProfile->mSupportedDevices.types() & device)) { 3493 if (!deviceDistinguishesOnAddress(device)) { 3494 ALOGV("checkOutputsForDevice(): adding opened output %d", mOutputs.keyAt(i)); 3495 outputs.add(mOutputs.keyAt(i)); 3496 } else { 3497 ALOGV(" checking address match due to device 0x%x", device); 3498 findIoHandlesByAddress(desc, device, address, outputs); 3499 } 3500 } 3501 } 3502 // then look for output profiles that can be routed to this device 3503 SortedVector< sp<IOProfile> > profiles; 3504 for (size_t i = 0; i < mHwModules.size(); i++) 3505 { 3506 if (mHwModules[i]->mHandle == 0) { 3507 continue; 3508 } 3509 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3510 { 3511 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 3512 if (profile->mSupportedDevices.types() & device) { 3513 if (!deviceDistinguishesOnAddress(device) || 3514 address == profile->mSupportedDevices[0]->mAddress) { 3515 profiles.add(profile); 3516 ALOGV("checkOutputsForDevice(): adding profile %zu from module %zu", j, i); 3517 } 3518 } 3519 } 3520 } 3521 3522 ALOGV(" found %d profiles, %d outputs", profiles.size(), outputs.size()); 3523 3524 if (profiles.isEmpty() && outputs.isEmpty()) { 3525 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 3526 return BAD_VALUE; 3527 } 3528 3529 // open outputs for matching profiles if needed. Direct outputs are also opened to 3530 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 3531 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 3532 sp<IOProfile> profile = profiles[profile_index]; 3533 3534 // nothing to do if one output is already opened for this profile 3535 size_t j; 3536 for (j = 0; j < outputs.size(); j++) { 3537 desc = mOutputs.valueFor(outputs.itemAt(j)); 3538 if (!desc->isDuplicated() && desc->mProfile == profile) { 3539 // matching profile: save the sample rates, format and channel masks supported 3540 // by the profile in our device descriptor 3541 devDesc->importAudioPort(profile); 3542 break; 3543 } 3544 } 3545 if (j != outputs.size()) { 3546 continue; 3547 } 3548 3549 ALOGV("opening output for device %08x with params %s profile %p", 3550 device, address.string(), profile.get()); 3551 desc = new AudioOutputDescriptor(profile); 3552 desc->mDevice = device; 3553 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3554 config.sample_rate = desc->mSamplingRate; 3555 config.channel_mask = desc->mChannelMask; 3556 config.format = desc->mFormat; 3557 config.offload_info.sample_rate = desc->mSamplingRate; 3558 config.offload_info.channel_mask = desc->mChannelMask; 3559 config.offload_info.format = desc->mFormat; 3560 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 3561 status_t status = mpClientInterface->openOutput(profile->mModule->mHandle, 3562 &output, 3563 &config, 3564 &desc->mDevice, 3565 address, 3566 &desc->mLatency, 3567 desc->mFlags); 3568 if (status == NO_ERROR) { 3569 desc->mSamplingRate = config.sample_rate; 3570 desc->mChannelMask = config.channel_mask; 3571 desc->mFormat = config.format; 3572 3573 // Here is where the out_set_parameters() for card & device gets called 3574 if (!address.isEmpty()) { 3575 char *param = audio_device_address_to_parameter(device, address); 3576 mpClientInterface->setParameters(output, String8(param)); 3577 free(param); 3578 } 3579 3580 // Here is where we step through and resolve any "dynamic" fields 3581 String8 reply; 3582 char *value; 3583 if (profile->mSamplingRates[0] == 0) { 3584 reply = mpClientInterface->getParameters(output, 3585 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 3586 ALOGV("checkOutputsForDevice() supported sampling rates %s", 3587 reply.string()); 3588 value = strpbrk((char *)reply.string(), "="); 3589 if (value != NULL) { 3590 profile->loadSamplingRates(value + 1); 3591 } 3592 } 3593 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3594 reply = mpClientInterface->getParameters(output, 3595 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 3596 ALOGV("checkOutputsForDevice() supported formats %s", 3597 reply.string()); 3598 value = strpbrk((char *)reply.string(), "="); 3599 if (value != NULL) { 3600 profile->loadFormats(value + 1); 3601 } 3602 } 3603 if (profile->mChannelMasks[0] == 0) { 3604 reply = mpClientInterface->getParameters(output, 3605 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 3606 ALOGV("checkOutputsForDevice() supported channel masks %s", 3607 reply.string()); 3608 value = strpbrk((char *)reply.string(), "="); 3609 if (value != NULL) { 3610 profile->loadOutChannels(value + 1); 3611 } 3612 } 3613 if (((profile->mSamplingRates[0] == 0) && 3614 (profile->mSamplingRates.size() < 2)) || 3615 ((profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) && 3616 (profile->mFormats.size() < 2)) || 3617 ((profile->mChannelMasks[0] == 0) && 3618 (profile->mChannelMasks.size() < 2))) { 3619 ALOGW("checkOutputsForDevice() missing param"); 3620 mpClientInterface->closeOutput(output); 3621 output = AUDIO_IO_HANDLE_NONE; 3622 } else if (profile->mSamplingRates[0] == 0 || profile->mFormats[0] == 0 || 3623 profile->mChannelMasks[0] == 0) { 3624 mpClientInterface->closeOutput(output); 3625 config.sample_rate = profile->pickSamplingRate(); 3626 config.channel_mask = profile->pickChannelMask(); 3627 config.format = profile->pickFormat(); 3628 config.offload_info.sample_rate = config.sample_rate; 3629 config.offload_info.channel_mask = config.channel_mask; 3630 config.offload_info.format = config.format; 3631 status = mpClientInterface->openOutput(profile->mModule->mHandle, 3632 &output, 3633 &config, 3634 &desc->mDevice, 3635 address, 3636 &desc->mLatency, 3637 desc->mFlags); 3638 if (status == NO_ERROR) { 3639 desc->mSamplingRate = config.sample_rate; 3640 desc->mChannelMask = config.channel_mask; 3641 desc->mFormat = config.format; 3642 } else { 3643 output = AUDIO_IO_HANDLE_NONE; 3644 } 3645 } 3646 3647 if (output != AUDIO_IO_HANDLE_NONE) { 3648 addOutput(output, desc); 3649 if (deviceDistinguishesOnAddress(device) && address != "0") { 3650 ssize_t index = mPolicyMixes.indexOfKey(address); 3651 if (index >= 0) { 3652 mPolicyMixes[index]->mOutput = desc; 3653 desc->mPolicyMix = &mPolicyMixes[index]->mMix; 3654 } else { 3655 ALOGE("checkOutputsForDevice() cannot find policy for address %s", 3656 address.string()); 3657 } 3658 } else if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) { 3659 // no duplicated output for direct outputs and 3660 // outputs used by dynamic policy mixes 3661 audio_io_handle_t duplicatedOutput = AUDIO_IO_HANDLE_NONE; 3662 3663 // set initial stream volume for device 3664 applyStreamVolumes(output, device, 0, true); 3665 3666 //TODO: configure audio effect output stage here 3667 3668 // open a duplicating output thread for the new output and the primary output 3669 duplicatedOutput = mpClientInterface->openDuplicateOutput(output, 3670 mPrimaryOutput); 3671 if (duplicatedOutput != AUDIO_IO_HANDLE_NONE) { 3672 // add duplicated output descriptor 3673 sp<AudioOutputDescriptor> dupOutputDesc = 3674 new AudioOutputDescriptor(NULL); 3675 dupOutputDesc->mOutput1 = mOutputs.valueFor(mPrimaryOutput); 3676 dupOutputDesc->mOutput2 = mOutputs.valueFor(output); 3677 dupOutputDesc->mSamplingRate = desc->mSamplingRate; 3678 dupOutputDesc->mFormat = desc->mFormat; 3679 dupOutputDesc->mChannelMask = desc->mChannelMask; 3680 dupOutputDesc->mLatency = desc->mLatency; 3681 addOutput(duplicatedOutput, dupOutputDesc); 3682 applyStreamVolumes(duplicatedOutput, device, 0, true); 3683 } else { 3684 ALOGW("checkOutputsForDevice() could not open dup output for %d and %d", 3685 mPrimaryOutput, output); 3686 mpClientInterface->closeOutput(output); 3687 mOutputs.removeItem(output); 3688 nextAudioPortGeneration(); 3689 output = AUDIO_IO_HANDLE_NONE; 3690 } 3691 } 3692 } 3693 } else { 3694 output = AUDIO_IO_HANDLE_NONE; 3695 } 3696 if (output == AUDIO_IO_HANDLE_NONE) { 3697 ALOGW("checkOutputsForDevice() could not open output for device %x", device); 3698 profiles.removeAt(profile_index); 3699 profile_index--; 3700 } else { 3701 outputs.add(output); 3702 devDesc->importAudioPort(profile); 3703 3704 if (deviceDistinguishesOnAddress(device)) { 3705 ALOGV("checkOutputsForDevice(): setOutputDevice(dev=0x%x, addr=%s)", 3706 device, address.string()); 3707 setOutputDevice(output, device, true/*force*/, 0/*delay*/, 3708 NULL/*patch handle*/, address.string()); 3709 } 3710 ALOGV("checkOutputsForDevice(): adding output %d", output); 3711 } 3712 } 3713 3714 if (profiles.isEmpty()) { 3715 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 3716 return BAD_VALUE; 3717 } 3718 } else { // Disconnect 3719 // check if one opened output is not needed any more after disconnecting one device 3720 for (size_t i = 0; i < mOutputs.size(); i++) { 3721 desc = mOutputs.valueAt(i); 3722 if (!desc->isDuplicated()) { 3723 // exact match on device 3724 if (deviceDistinguishesOnAddress(device) && 3725 (desc->mProfile->mSupportedDevices.types() == device)) { 3726 findIoHandlesByAddress(desc, device, address, outputs); 3727 } else if (!(desc->mProfile->mSupportedDevices.types() 3728 & mAvailableOutputDevices.types())) { 3729 ALOGV("checkOutputsForDevice(): disconnecting adding output %d", 3730 mOutputs.keyAt(i)); 3731 outputs.add(mOutputs.keyAt(i)); 3732 } 3733 } 3734 } 3735 // Clear any profiles associated with the disconnected device. 3736 for (size_t i = 0; i < mHwModules.size(); i++) 3737 { 3738 if (mHwModules[i]->mHandle == 0) { 3739 continue; 3740 } 3741 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3742 { 3743 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 3744 if (profile->mSupportedDevices.types() & device) { 3745 ALOGV("checkOutputsForDevice(): " 3746 "clearing direct output profile %zu on module %zu", j, i); 3747 if (profile->mSamplingRates[0] == 0) { 3748 profile->mSamplingRates.clear(); 3749 profile->mSamplingRates.add(0); 3750 } 3751 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3752 profile->mFormats.clear(); 3753 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 3754 } 3755 if (profile->mChannelMasks[0] == 0) { 3756 profile->mChannelMasks.clear(); 3757 profile->mChannelMasks.add(0); 3758 } 3759 } 3760 } 3761 } 3762 } 3763 return NO_ERROR; 3764} 3765 3766status_t AudioPolicyManager::checkInputsForDevice(audio_devices_t device, 3767 audio_policy_dev_state_t state, 3768 SortedVector<audio_io_handle_t>& inputs, 3769 const String8 address) 3770{ 3771 sp<AudioInputDescriptor> desc; 3772 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 3773 // first list already open inputs that can be routed to this device 3774 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 3775 desc = mInputs.valueAt(input_index); 3776 if (desc->mProfile->mSupportedDevices.types() & (device & ~AUDIO_DEVICE_BIT_IN)) { 3777 ALOGV("checkInputsForDevice(): adding opened input %d", mInputs.keyAt(input_index)); 3778 inputs.add(mInputs.keyAt(input_index)); 3779 } 3780 } 3781 3782 // then look for input profiles that can be routed to this device 3783 SortedVector< sp<IOProfile> > profiles; 3784 for (size_t module_idx = 0; module_idx < mHwModules.size(); module_idx++) 3785 { 3786 if (mHwModules[module_idx]->mHandle == 0) { 3787 continue; 3788 } 3789 for (size_t profile_index = 0; 3790 profile_index < mHwModules[module_idx]->mInputProfiles.size(); 3791 profile_index++) 3792 { 3793 sp<IOProfile> profile = mHwModules[module_idx]->mInputProfiles[profile_index]; 3794 3795 if (profile->mSupportedDevices.types() & (device & ~AUDIO_DEVICE_BIT_IN)) { 3796 if (!deviceDistinguishesOnAddress(device) || 3797 address == profile->mSupportedDevices[0]->mAddress) { 3798 profiles.add(profile); 3799 ALOGV("checkInputsForDevice(): adding profile %zu from module %zu", 3800 profile_index, module_idx); 3801 } 3802 } 3803 } 3804 } 3805 3806 if (profiles.isEmpty() && inputs.isEmpty()) { 3807 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 3808 return BAD_VALUE; 3809 } 3810 3811 // open inputs for matching profiles if needed. Direct inputs are also opened to 3812 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 3813 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 3814 3815 sp<IOProfile> profile = profiles[profile_index]; 3816 // nothing to do if one input is already opened for this profile 3817 size_t input_index; 3818 for (input_index = 0; input_index < mInputs.size(); input_index++) { 3819 desc = mInputs.valueAt(input_index); 3820 if (desc->mProfile == profile) { 3821 break; 3822 } 3823 } 3824 if (input_index != mInputs.size()) { 3825 continue; 3826 } 3827 3828 ALOGV("opening input for device 0x%X with params %s", device, address.string()); 3829 desc = new AudioInputDescriptor(profile); 3830 desc->mDevice = device; 3831 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3832 config.sample_rate = desc->mSamplingRate; 3833 config.channel_mask = desc->mChannelMask; 3834 config.format = desc->mFormat; 3835 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 3836 status_t status = mpClientInterface->openInput(profile->mModule->mHandle, 3837 &input, 3838 &config, 3839 &desc->mDevice, 3840 address, 3841 AUDIO_SOURCE_MIC, 3842 AUDIO_INPUT_FLAG_NONE /*FIXME*/); 3843 3844 if (status == NO_ERROR) { 3845 desc->mSamplingRate = config.sample_rate; 3846 desc->mChannelMask = config.channel_mask; 3847 desc->mFormat = config.format; 3848 3849 if (!address.isEmpty()) { 3850 char *param = audio_device_address_to_parameter(device, address); 3851 mpClientInterface->setParameters(input, String8(param)); 3852 free(param); 3853 } 3854 3855 // Here is where we step through and resolve any "dynamic" fields 3856 String8 reply; 3857 char *value; 3858 if (profile->mSamplingRates[0] == 0) { 3859 reply = mpClientInterface->getParameters(input, 3860 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 3861 ALOGV("checkInputsForDevice() direct input sup sampling rates %s", 3862 reply.string()); 3863 value = strpbrk((char *)reply.string(), "="); 3864 if (value != NULL) { 3865 profile->loadSamplingRates(value + 1); 3866 } 3867 } 3868 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3869 reply = mpClientInterface->getParameters(input, 3870 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 3871 ALOGV("checkInputsForDevice() direct input sup formats %s", reply.string()); 3872 value = strpbrk((char *)reply.string(), "="); 3873 if (value != NULL) { 3874 profile->loadFormats(value + 1); 3875 } 3876 } 3877 if (profile->mChannelMasks[0] == 0) { 3878 reply = mpClientInterface->getParameters(input, 3879 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 3880 ALOGV("checkInputsForDevice() direct input sup channel masks %s", 3881 reply.string()); 3882 value = strpbrk((char *)reply.string(), "="); 3883 if (value != NULL) { 3884 profile->loadInChannels(value + 1); 3885 } 3886 } 3887 if (((profile->mSamplingRates[0] == 0) && (profile->mSamplingRates.size() < 2)) || 3888 ((profile->mFormats[0] == 0) && (profile->mFormats.size() < 2)) || 3889 ((profile->mChannelMasks[0] == 0) && (profile->mChannelMasks.size() < 2))) { 3890 ALOGW("checkInputsForDevice() direct input missing param"); 3891 mpClientInterface->closeInput(input); 3892 input = AUDIO_IO_HANDLE_NONE; 3893 } 3894 3895 if (input != 0) { 3896 addInput(input, desc); 3897 } 3898 } // endif input != 0 3899 3900 if (input == AUDIO_IO_HANDLE_NONE) { 3901 ALOGW("checkInputsForDevice() could not open input for device 0x%X", device); 3902 profiles.removeAt(profile_index); 3903 profile_index--; 3904 } else { 3905 inputs.add(input); 3906 ALOGV("checkInputsForDevice(): adding input %d", input); 3907 } 3908 } // end scan profiles 3909 3910 if (profiles.isEmpty()) { 3911 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 3912 return BAD_VALUE; 3913 } 3914 } else { 3915 // Disconnect 3916 // check if one opened input is not needed any more after disconnecting one device 3917 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 3918 desc = mInputs.valueAt(input_index); 3919 if (!(desc->mProfile->mSupportedDevices.types() & mAvailableInputDevices.types() & 3920 ~AUDIO_DEVICE_BIT_IN)) { 3921 ALOGV("checkInputsForDevice(): disconnecting adding input %d", 3922 mInputs.keyAt(input_index)); 3923 inputs.add(mInputs.keyAt(input_index)); 3924 } 3925 } 3926 // Clear any profiles associated with the disconnected device. 3927 for (size_t module_index = 0; module_index < mHwModules.size(); module_index++) { 3928 if (mHwModules[module_index]->mHandle == 0) { 3929 continue; 3930 } 3931 for (size_t profile_index = 0; 3932 profile_index < mHwModules[module_index]->mInputProfiles.size(); 3933 profile_index++) { 3934 sp<IOProfile> profile = mHwModules[module_index]->mInputProfiles[profile_index]; 3935 if (profile->mSupportedDevices.types() & device & ~AUDIO_DEVICE_BIT_IN) { 3936 ALOGV("checkInputsForDevice(): clearing direct input profile %zu on module %zu", 3937 profile_index, module_index); 3938 if (profile->mSamplingRates[0] == 0) { 3939 profile->mSamplingRates.clear(); 3940 profile->mSamplingRates.add(0); 3941 } 3942 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3943 profile->mFormats.clear(); 3944 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 3945 } 3946 if (profile->mChannelMasks[0] == 0) { 3947 profile->mChannelMasks.clear(); 3948 profile->mChannelMasks.add(0); 3949 } 3950 } 3951 } 3952 } 3953 } // end disconnect 3954 3955 return NO_ERROR; 3956} 3957 3958 3959void AudioPolicyManager::closeOutput(audio_io_handle_t output) 3960{ 3961 ALOGV("closeOutput(%d)", output); 3962 3963 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 3964 if (outputDesc == NULL) { 3965 ALOGW("closeOutput() unknown output %d", output); 3966 return; 3967 } 3968 3969 for (size_t i = 0; i < mPolicyMixes.size(); i++) { 3970 if (mPolicyMixes[i]->mOutput == outputDesc) { 3971 mPolicyMixes[i]->mOutput.clear(); 3972 } 3973 } 3974 3975 // look for duplicated outputs connected to the output being removed. 3976 for (size_t i = 0; i < mOutputs.size(); i++) { 3977 sp<AudioOutputDescriptor> dupOutputDesc = mOutputs.valueAt(i); 3978 if (dupOutputDesc->isDuplicated() && 3979 (dupOutputDesc->mOutput1 == outputDesc || 3980 dupOutputDesc->mOutput2 == outputDesc)) { 3981 sp<AudioOutputDescriptor> outputDesc2; 3982 if (dupOutputDesc->mOutput1 == outputDesc) { 3983 outputDesc2 = dupOutputDesc->mOutput2; 3984 } else { 3985 outputDesc2 = dupOutputDesc->mOutput1; 3986 } 3987 // As all active tracks on duplicated output will be deleted, 3988 // and as they were also referenced on the other output, the reference 3989 // count for their stream type must be adjusted accordingly on 3990 // the other output. 3991 for (int j = 0; j < AUDIO_STREAM_CNT; j++) { 3992 int refCount = dupOutputDesc->mRefCount[j]; 3993 outputDesc2->changeRefCount((audio_stream_type_t)j,-refCount); 3994 } 3995 audio_io_handle_t duplicatedOutput = mOutputs.keyAt(i); 3996 ALOGV("closeOutput() closing also duplicated output %d", duplicatedOutput); 3997 3998 mpClientInterface->closeOutput(duplicatedOutput); 3999 mOutputs.removeItem(duplicatedOutput); 4000 } 4001 } 4002 4003 nextAudioPortGeneration(); 4004 4005 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4006 if (index >= 0) { 4007 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4008 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 4009 mAudioPatches.removeItemsAt(index); 4010 mpClientInterface->onAudioPatchListUpdate(); 4011 } 4012 4013 AudioParameter param; 4014 param.add(String8("closing"), String8("true")); 4015 mpClientInterface->setParameters(output, param.toString()); 4016 4017 mpClientInterface->closeOutput(output); 4018 mOutputs.removeItem(output); 4019 mPreviousOutputs = mOutputs; 4020} 4021 4022void AudioPolicyManager::closeInput(audio_io_handle_t input) 4023{ 4024 ALOGV("closeInput(%d)", input); 4025 4026 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4027 if (inputDesc == NULL) { 4028 ALOGW("closeInput() unknown input %d", input); 4029 return; 4030 } 4031 4032 nextAudioPortGeneration(); 4033 4034 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4035 if (index >= 0) { 4036 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4037 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 4038 mAudioPatches.removeItemsAt(index); 4039 mpClientInterface->onAudioPatchListUpdate(); 4040 } 4041 4042 mpClientInterface->closeInput(input); 4043 mInputs.removeItem(input); 4044} 4045 4046SortedVector<audio_io_handle_t> AudioPolicyManager::getOutputsForDevice(audio_devices_t device, 4047 DefaultKeyedVector<audio_io_handle_t, sp<AudioOutputDescriptor> > openOutputs) 4048{ 4049 SortedVector<audio_io_handle_t> outputs; 4050 4051 ALOGVV("getOutputsForDevice() device %04x", device); 4052 for (size_t i = 0; i < openOutputs.size(); i++) { 4053 ALOGVV("output %d isDuplicated=%d device=%04x", 4054 i, openOutputs.valueAt(i)->isDuplicated(), openOutputs.valueAt(i)->supportedDevices()); 4055 if ((device & openOutputs.valueAt(i)->supportedDevices()) == device) { 4056 ALOGVV("getOutputsForDevice() found output %d", openOutputs.keyAt(i)); 4057 outputs.add(openOutputs.keyAt(i)); 4058 } 4059 } 4060 return outputs; 4061} 4062 4063bool AudioPolicyManager::vectorsEqual(SortedVector<audio_io_handle_t>& outputs1, 4064 SortedVector<audio_io_handle_t>& outputs2) 4065{ 4066 if (outputs1.size() != outputs2.size()) { 4067 return false; 4068 } 4069 for (size_t i = 0; i < outputs1.size(); i++) { 4070 if (outputs1[i] != outputs2[i]) { 4071 return false; 4072 } 4073 } 4074 return true; 4075} 4076 4077void AudioPolicyManager::checkOutputForStrategy(routing_strategy strategy) 4078{ 4079 audio_devices_t oldDevice = getDeviceForStrategy(strategy, true /*fromCache*/); 4080 audio_devices_t newDevice = getDeviceForStrategy(strategy, false /*fromCache*/); 4081 SortedVector<audio_io_handle_t> srcOutputs = getOutputsForDevice(oldDevice, mPreviousOutputs); 4082 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(newDevice, mOutputs); 4083 4084 // also take into account external policy-related changes: add all outputs which are 4085 // associated with policies in the "before" and "after" output vectors 4086 ALOGVV("checkOutputForStrategy(): policy related outputs"); 4087 for (size_t i = 0 ; i < mPreviousOutputs.size() ; i++) { 4088 const sp<AudioOutputDescriptor> desc = mPreviousOutputs.valueAt(i); 4089 if (desc != 0 && desc->mPolicyMix != NULL) { 4090 srcOutputs.add(desc->mIoHandle); 4091 ALOGVV(" previous outputs: adding %d", desc->mIoHandle); 4092 } 4093 } 4094 for (size_t i = 0 ; i < mOutputs.size() ; i++) { 4095 const sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 4096 if (desc != 0 && desc->mPolicyMix != NULL) { 4097 dstOutputs.add(desc->mIoHandle); 4098 ALOGVV(" new outputs: adding %d", desc->mIoHandle); 4099 } 4100 } 4101 4102 if (!vectorsEqual(srcOutputs,dstOutputs)) { 4103 ALOGV("checkOutputForStrategy() strategy %d, moving from output %d to output %d", 4104 strategy, srcOutputs[0], dstOutputs[0]); 4105 // mute strategy while moving tracks from one output to another 4106 for (size_t i = 0; i < srcOutputs.size(); i++) { 4107 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(srcOutputs[i]); 4108 if (desc->isStrategyActive(strategy)) { 4109 setStrategyMute(strategy, true, srcOutputs[i]); 4110 setStrategyMute(strategy, false, srcOutputs[i], MUTE_TIME_MS, newDevice); 4111 } 4112 } 4113 4114 // Move effects associated to this strategy from previous output to new output 4115 if (strategy == STRATEGY_MEDIA) { 4116 audio_io_handle_t fxOutput = selectOutputForEffects(dstOutputs); 4117 SortedVector<audio_io_handle_t> moved; 4118 for (size_t i = 0; i < mEffects.size(); i++) { 4119 sp<EffectDescriptor> effectDesc = mEffects.valueAt(i); 4120 if (effectDesc->mSession == AUDIO_SESSION_OUTPUT_MIX && 4121 effectDesc->mIo != fxOutput) { 4122 if (moved.indexOf(effectDesc->mIo) < 0) { 4123 ALOGV("checkOutputForStrategy() moving effect %d to output %d", 4124 mEffects.keyAt(i), fxOutput); 4125 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, effectDesc->mIo, 4126 fxOutput); 4127 moved.add(effectDesc->mIo); 4128 } 4129 effectDesc->mIo = fxOutput; 4130 } 4131 } 4132 } 4133 // Move tracks associated to this strategy from previous output to new output 4134 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 4135 if (i == AUDIO_STREAM_PATCH) { 4136 continue; 4137 } 4138 if (getStrategy((audio_stream_type_t)i) == strategy) { 4139 mpClientInterface->invalidateStream((audio_stream_type_t)i); 4140 } 4141 } 4142 } 4143} 4144 4145void AudioPolicyManager::checkOutputForAllStrategies() 4146{ 4147 if (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) 4148 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 4149 checkOutputForStrategy(STRATEGY_PHONE); 4150 if (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] != AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) 4151 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 4152 checkOutputForStrategy(STRATEGY_SONIFICATION); 4153 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 4154 checkOutputForStrategy(STRATEGY_ACCESSIBILITY); 4155 checkOutputForStrategy(STRATEGY_MEDIA); 4156 checkOutputForStrategy(STRATEGY_DTMF); 4157 checkOutputForStrategy(STRATEGY_REROUTING); 4158} 4159 4160audio_io_handle_t AudioPolicyManager::getA2dpOutput() 4161{ 4162 for (size_t i = 0; i < mOutputs.size(); i++) { 4163 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 4164 if (!outputDesc->isDuplicated() && outputDesc->device() & AUDIO_DEVICE_OUT_ALL_A2DP) { 4165 return mOutputs.keyAt(i); 4166 } 4167 } 4168 4169 return 0; 4170} 4171 4172void AudioPolicyManager::checkA2dpSuspend() 4173{ 4174 audio_io_handle_t a2dpOutput = getA2dpOutput(); 4175 if (a2dpOutput == 0) { 4176 mA2dpSuspended = false; 4177 return; 4178 } 4179 4180 bool isScoConnected = 4181 ((mAvailableInputDevices.types() & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET & 4182 ~AUDIO_DEVICE_BIT_IN) != 0) || 4183 ((mAvailableOutputDevices.types() & AUDIO_DEVICE_OUT_ALL_SCO) != 0); 4184 // suspend A2DP output if: 4185 // (NOT already suspended) && 4186 // ((SCO device is connected && 4187 // (forced usage for communication || for record is SCO))) || 4188 // (phone state is ringing || in call) 4189 // 4190 // restore A2DP output if: 4191 // (Already suspended) && 4192 // ((SCO device is NOT connected || 4193 // (forced usage NOT for communication && NOT for record is SCO))) && 4194 // (phone state is NOT ringing && NOT in call) 4195 // 4196 if (mA2dpSuspended) { 4197 if ((!isScoConnected || 4198 ((mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] != AUDIO_POLICY_FORCE_BT_SCO) && 4199 (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] != AUDIO_POLICY_FORCE_BT_SCO))) && 4200 ((mPhoneState != AUDIO_MODE_IN_CALL) && 4201 (mPhoneState != AUDIO_MODE_RINGTONE))) { 4202 4203 mpClientInterface->restoreOutput(a2dpOutput); 4204 mA2dpSuspended = false; 4205 } 4206 } else { 4207 if ((isScoConnected && 4208 ((mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO) || 4209 (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO))) || 4210 ((mPhoneState == AUDIO_MODE_IN_CALL) || 4211 (mPhoneState == AUDIO_MODE_RINGTONE))) { 4212 4213 mpClientInterface->suspendOutput(a2dpOutput); 4214 mA2dpSuspended = true; 4215 } 4216 } 4217} 4218 4219audio_devices_t AudioPolicyManager::getNewOutputDevice(audio_io_handle_t output, bool fromCache) 4220{ 4221 audio_devices_t device = AUDIO_DEVICE_NONE; 4222 4223 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4224 4225 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4226 if (index >= 0) { 4227 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4228 if (patchDesc->mUid != mUidCached) { 4229 ALOGV("getNewOutputDevice() device %08x forced by patch %d", 4230 outputDesc->device(), outputDesc->mPatchHandle); 4231 return outputDesc->device(); 4232 } 4233 } 4234 4235 // check the following by order of priority to request a routing change if necessary: 4236 // 1: the strategy enforced audible is active and enforced on the output: 4237 // use device for strategy enforced audible 4238 // 2: we are in call or the strategy phone is active on the output: 4239 // use device for strategy phone 4240 // 3: the strategy for enforced audible is active but not enforced on the output: 4241 // use the device for strategy enforced audible 4242 // 4: the strategy sonification is active on the output: 4243 // use device for strategy sonification 4244 // 5: the strategy "respectful" sonification is active on the output: 4245 // use device for strategy "respectful" sonification 4246 // 6: the strategy accessibility is active on the output: 4247 // use device for strategy accessibility 4248 // 7: the strategy media is active on the output: 4249 // use device for strategy media 4250 // 8: the strategy DTMF is active on the output: 4251 // use device for strategy DTMF 4252 // 9: the strategy for beacon, a.k.a. "transmitted through speaker" is active on the output: 4253 // use device for strategy t-t-s 4254 if (outputDesc->isStrategyActive(STRATEGY_ENFORCED_AUDIBLE) && 4255 mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) { 4256 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 4257 } else if (isInCall() || 4258 outputDesc->isStrategyActive(STRATEGY_PHONE)) { 4259 device = getDeviceForStrategy(STRATEGY_PHONE, fromCache); 4260 } else if (outputDesc->isStrategyActive(STRATEGY_ENFORCED_AUDIBLE)) { 4261 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 4262 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION)) { 4263 device = getDeviceForStrategy(STRATEGY_SONIFICATION, fromCache); 4264 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION_RESPECTFUL)) { 4265 device = getDeviceForStrategy(STRATEGY_SONIFICATION_RESPECTFUL, fromCache); 4266 } else if (outputDesc->isStrategyActive(STRATEGY_ACCESSIBILITY)) { 4267 device = getDeviceForStrategy(STRATEGY_ACCESSIBILITY, fromCache); 4268 } else if (outputDesc->isStrategyActive(STRATEGY_MEDIA)) { 4269 device = getDeviceForStrategy(STRATEGY_MEDIA, fromCache); 4270 } else if (outputDesc->isStrategyActive(STRATEGY_DTMF)) { 4271 device = getDeviceForStrategy(STRATEGY_DTMF, fromCache); 4272 } else if (outputDesc->isStrategyActive(STRATEGY_TRANSMITTED_THROUGH_SPEAKER)) { 4273 device = getDeviceForStrategy(STRATEGY_TRANSMITTED_THROUGH_SPEAKER, fromCache); 4274 } else if (outputDesc->isStrategyActive(STRATEGY_REROUTING)) { 4275 device = getDeviceForStrategy(STRATEGY_REROUTING, fromCache); 4276 } 4277 4278 ALOGV("getNewOutputDevice() selected device %x", device); 4279 return device; 4280} 4281 4282audio_devices_t AudioPolicyManager::getNewInputDevice(audio_io_handle_t input) 4283{ 4284 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4285 4286 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4287 if (index >= 0) { 4288 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4289 if (patchDesc->mUid != mUidCached) { 4290 ALOGV("getNewInputDevice() device %08x forced by patch %d", 4291 inputDesc->mDevice, inputDesc->mPatchHandle); 4292 return inputDesc->mDevice; 4293 } 4294 } 4295 4296 audio_devices_t device = getDeviceAndMixForInputSource(inputDesc->mInputSource); 4297 4298 ALOGV("getNewInputDevice() selected device %x", device); 4299 return device; 4300} 4301 4302uint32_t AudioPolicyManager::getStrategyForStream(audio_stream_type_t stream) { 4303 return (uint32_t)getStrategy(stream); 4304} 4305 4306audio_devices_t AudioPolicyManager::getDevicesForStream(audio_stream_type_t stream) { 4307 // By checking the range of stream before calling getStrategy, we avoid 4308 // getStrategy's behavior for invalid streams. getStrategy would do a ALOGE 4309 // and then return STRATEGY_MEDIA, but we want to return the empty set. 4310 if (stream < (audio_stream_type_t) 0 || stream >= AUDIO_STREAM_PUBLIC_CNT) { 4311 return AUDIO_DEVICE_NONE; 4312 } 4313 audio_devices_t devices; 4314 AudioPolicyManager::routing_strategy strategy = getStrategy(stream); 4315 devices = getDeviceForStrategy(strategy, true /*fromCache*/); 4316 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(devices, mOutputs); 4317 for (size_t i = 0; i < outputs.size(); i++) { 4318 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 4319 if (outputDesc->isStrategyActive(strategy)) { 4320 devices = outputDesc->device(); 4321 break; 4322 } 4323 } 4324 4325 /*Filter SPEAKER_SAFE out of results, as AudioService doesn't know about it 4326 and doesn't really need to.*/ 4327 if (devices & AUDIO_DEVICE_OUT_SPEAKER_SAFE) { 4328 devices |= AUDIO_DEVICE_OUT_SPEAKER; 4329 devices &= ~AUDIO_DEVICE_OUT_SPEAKER_SAFE; 4330 } 4331 4332 return devices; 4333} 4334 4335AudioPolicyManager::routing_strategy AudioPolicyManager::getStrategy( 4336 audio_stream_type_t stream) { 4337 4338 ALOG_ASSERT(stream != AUDIO_STREAM_PATCH,"getStrategy() called for AUDIO_STREAM_PATCH"); 4339 4340 // stream to strategy mapping 4341 switch (stream) { 4342 case AUDIO_STREAM_VOICE_CALL: 4343 case AUDIO_STREAM_BLUETOOTH_SCO: 4344 return STRATEGY_PHONE; 4345 case AUDIO_STREAM_RING: 4346 case AUDIO_STREAM_ALARM: 4347 return STRATEGY_SONIFICATION; 4348 case AUDIO_STREAM_NOTIFICATION: 4349 return STRATEGY_SONIFICATION_RESPECTFUL; 4350 case AUDIO_STREAM_DTMF: 4351 return STRATEGY_DTMF; 4352 default: 4353 ALOGE("unknown stream type %d", stream); 4354 case AUDIO_STREAM_SYSTEM: 4355 // NOTE: SYSTEM stream uses MEDIA strategy because muting music and switching outputs 4356 // while key clicks are played produces a poor result 4357 case AUDIO_STREAM_MUSIC: 4358 return STRATEGY_MEDIA; 4359 case AUDIO_STREAM_ENFORCED_AUDIBLE: 4360 return STRATEGY_ENFORCED_AUDIBLE; 4361 case AUDIO_STREAM_TTS: 4362 return STRATEGY_TRANSMITTED_THROUGH_SPEAKER; 4363 case AUDIO_STREAM_ACCESSIBILITY: 4364 return STRATEGY_ACCESSIBILITY; 4365 case AUDIO_STREAM_REROUTING: 4366 return STRATEGY_REROUTING; 4367 } 4368} 4369 4370uint32_t AudioPolicyManager::getStrategyForAttr(const audio_attributes_t *attr) { 4371 // flags to strategy mapping 4372 if ((attr->flags & AUDIO_FLAG_BEACON) == AUDIO_FLAG_BEACON) { 4373 return (uint32_t) STRATEGY_TRANSMITTED_THROUGH_SPEAKER; 4374 } 4375 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 4376 return (uint32_t) STRATEGY_ENFORCED_AUDIBLE; 4377 } 4378 4379 // usage to strategy mapping 4380 switch (attr->usage) { 4381 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 4382 if (isStreamActive(AUDIO_STREAM_RING) || isStreamActive(AUDIO_STREAM_ALARM)) { 4383 return (uint32_t) STRATEGY_SONIFICATION; 4384 } 4385 if (isInCall()) { 4386 return (uint32_t) STRATEGY_PHONE; 4387 } 4388 return (uint32_t) STRATEGY_ACCESSIBILITY; 4389 4390 case AUDIO_USAGE_MEDIA: 4391 case AUDIO_USAGE_GAME: 4392 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 4393 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 4394 return (uint32_t) STRATEGY_MEDIA; 4395 4396 case AUDIO_USAGE_VOICE_COMMUNICATION: 4397 return (uint32_t) STRATEGY_PHONE; 4398 4399 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 4400 return (uint32_t) STRATEGY_DTMF; 4401 4402 case AUDIO_USAGE_ALARM: 4403 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 4404 return (uint32_t) STRATEGY_SONIFICATION; 4405 4406 case AUDIO_USAGE_NOTIFICATION: 4407 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 4408 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 4409 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 4410 case AUDIO_USAGE_NOTIFICATION_EVENT: 4411 return (uint32_t) STRATEGY_SONIFICATION_RESPECTFUL; 4412 4413 case AUDIO_USAGE_UNKNOWN: 4414 default: 4415 return (uint32_t) STRATEGY_MEDIA; 4416 } 4417} 4418 4419void AudioPolicyManager::handleNotificationRoutingForStream(audio_stream_type_t stream) { 4420 switch(stream) { 4421 case AUDIO_STREAM_MUSIC: 4422 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 4423 updateDevicesAndOutputs(); 4424 break; 4425 default: 4426 break; 4427 } 4428} 4429 4430bool AudioPolicyManager::isAnyOutputActive(audio_stream_type_t streamToIgnore) { 4431 for (size_t s = 0 ; s < AUDIO_STREAM_CNT ; s++) { 4432 if (s == (size_t) streamToIgnore) { 4433 continue; 4434 } 4435 for (size_t i = 0; i < mOutputs.size(); i++) { 4436 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 4437 if (outputDesc->mRefCount[s] != 0) { 4438 return true; 4439 } 4440 } 4441 } 4442 return false; 4443} 4444 4445uint32_t AudioPolicyManager::handleEventForBeacon(int event) { 4446 switch(event) { 4447 case STARTING_OUTPUT: 4448 mBeaconMuteRefCount++; 4449 break; 4450 case STOPPING_OUTPUT: 4451 if (mBeaconMuteRefCount > 0) { 4452 mBeaconMuteRefCount--; 4453 } 4454 break; 4455 case STARTING_BEACON: 4456 mBeaconPlayingRefCount++; 4457 break; 4458 case STOPPING_BEACON: 4459 if (mBeaconPlayingRefCount > 0) { 4460 mBeaconPlayingRefCount--; 4461 } 4462 break; 4463 } 4464 4465 if (mBeaconMuteRefCount > 0) { 4466 // any playback causes beacon to be muted 4467 return setBeaconMute(true); 4468 } else { 4469 // no other playback: unmute when beacon starts playing, mute when it stops 4470 return setBeaconMute(mBeaconPlayingRefCount == 0); 4471 } 4472} 4473 4474uint32_t AudioPolicyManager::setBeaconMute(bool mute) { 4475 ALOGV("setBeaconMute(%d) mBeaconMuteRefCount=%d mBeaconPlayingRefCount=%d", 4476 mute, mBeaconMuteRefCount, mBeaconPlayingRefCount); 4477 // keep track of muted state to avoid repeating mute/unmute operations 4478 if (mBeaconMuted != mute) { 4479 // mute/unmute AUDIO_STREAM_TTS on all outputs 4480 ALOGV("\t muting %d", mute); 4481 uint32_t maxLatency = 0; 4482 for (size_t i = 0; i < mOutputs.size(); i++) { 4483 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 4484 setStreamMute(AUDIO_STREAM_TTS, mute/*on*/, 4485 desc->mIoHandle, 4486 0 /*delay*/, AUDIO_DEVICE_NONE); 4487 const uint32_t latency = desc->latency() * 2; 4488 if (latency > maxLatency) { 4489 maxLatency = latency; 4490 } 4491 } 4492 mBeaconMuted = mute; 4493 return maxLatency; 4494 } 4495 return 0; 4496} 4497 4498audio_devices_t AudioPolicyManager::getDeviceForStrategy(routing_strategy strategy, 4499 bool fromCache) 4500{ 4501 uint32_t device = AUDIO_DEVICE_NONE; 4502 4503 if (fromCache) { 4504 ALOGVV("getDeviceForStrategy() from cache strategy %d, device %x", 4505 strategy, mDeviceForStrategy[strategy]); 4506 return mDeviceForStrategy[strategy]; 4507 } 4508 audio_devices_t availableOutputDeviceTypes = mAvailableOutputDevices.types(); 4509 switch (strategy) { 4510 4511 case STRATEGY_TRANSMITTED_THROUGH_SPEAKER: 4512 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4513 if (!device) { 4514 ALOGE("getDeviceForStrategy() no device found for "\ 4515 "STRATEGY_TRANSMITTED_THROUGH_SPEAKER"); 4516 } 4517 break; 4518 4519 case STRATEGY_SONIFICATION_RESPECTFUL: 4520 if (isInCall()) { 4521 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 4522 } else if (isStreamActiveRemotely(AUDIO_STREAM_MUSIC, 4523 SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { 4524 // while media is playing on a remote device, use the the sonification behavior. 4525 // Note that we test this usecase before testing if media is playing because 4526 // the isStreamActive() method only informs about the activity of a stream, not 4527 // if it's for local playback. Note also that we use the same delay between both tests 4528 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 4529 //user "safe" speaker if available instead of normal speaker to avoid triggering 4530 //other acoustic safety mechanisms for notification 4531 if (device == AUDIO_DEVICE_OUT_SPEAKER && (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER_SAFE)) 4532 device = AUDIO_DEVICE_OUT_SPEAKER_SAFE; 4533 } else if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { 4534 // while media is playing (or has recently played), use the same device 4535 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); 4536 } else { 4537 // when media is not playing anymore, fall back on the sonification behavior 4538 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 4539 //user "safe" speaker if available instead of normal speaker to avoid triggering 4540 //other acoustic safety mechanisms for notification 4541 if (device == AUDIO_DEVICE_OUT_SPEAKER && (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER_SAFE)) 4542 device = AUDIO_DEVICE_OUT_SPEAKER_SAFE; 4543 } 4544 4545 break; 4546 4547 case STRATEGY_DTMF: 4548 if (!isInCall()) { 4549 // when off call, DTMF strategy follows the same rules as MEDIA strategy 4550 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); 4551 break; 4552 } 4553 // when in call, DTMF and PHONE strategies follow the same rules 4554 // FALL THROUGH 4555 4556 case STRATEGY_PHONE: 4557 // Force use of only devices on primary output if: 4558 // - in call AND 4559 // - cannot route from voice call RX OR 4560 // - audio HAL version is < 3.0 and TX device is on the primary HW module 4561 if (mPhoneState == AUDIO_MODE_IN_CALL) { 4562 audio_devices_t txDevice = 4563 getDeviceAndMixForInputSource(AUDIO_SOURCE_VOICE_COMMUNICATION); 4564 sp<AudioOutputDescriptor> hwOutputDesc = mOutputs.valueFor(mPrimaryOutput); 4565 if (((mAvailableInputDevices.types() & 4566 AUDIO_DEVICE_IN_TELEPHONY_RX & ~AUDIO_DEVICE_BIT_IN) == 0) || 4567 (((txDevice & availablePrimaryInputDevices() & ~AUDIO_DEVICE_BIT_IN) != 0) && 4568 (hwOutputDesc->getAudioPort()->mModule->mHalVersion < 4569 AUDIO_DEVICE_API_VERSION_3_0))) { 4570 availableOutputDeviceTypes = availablePrimaryOutputDevices(); 4571 } 4572 } 4573 // for phone strategy, we first consider the forced use and then the available devices by order 4574 // of priority 4575 switch (mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]) { 4576 case AUDIO_POLICY_FORCE_BT_SCO: 4577 if (!isInCall() || strategy != STRATEGY_DTMF) { 4578 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT; 4579 if (device) break; 4580 } 4581 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET; 4582 if (device) break; 4583 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO; 4584 if (device) break; 4585 // if SCO device is requested but no SCO device is available, fall back to default case 4586 // FALL THROUGH 4587 4588 default: // FORCE_NONE 4589 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to A2DP 4590 if (!isInCall() && 4591 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 4592 (getA2dpOutput() != 0)) { 4593 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; 4594 if (device) break; 4595 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; 4596 if (device) break; 4597 } 4598 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; 4599 if (device) break; 4600 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADSET; 4601 if (device) break; 4602 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 4603 if (device) break; 4604 if (mPhoneState != AUDIO_MODE_IN_CALL) { 4605 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 4606 if (device) break; 4607 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 4608 if (device) break; 4609 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 4610 if (device) break; 4611 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 4612 if (device) break; 4613 } 4614 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_EARPIECE; 4615 if (device) break; 4616 device = mDefaultOutputDevice->mDeviceType; 4617 if (device == AUDIO_DEVICE_NONE) { 4618 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE"); 4619 } 4620 break; 4621 4622 case AUDIO_POLICY_FORCE_SPEAKER: 4623 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to 4624 // A2DP speaker when forcing to speaker output 4625 if (!isInCall() && 4626 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 4627 (getA2dpOutput() != 0)) { 4628 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; 4629 if (device) break; 4630 } 4631 if (!isInCall()) { 4632 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 4633 if (device) break; 4634 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 4635 if (device) break; 4636 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 4637 if (device) break; 4638 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 4639 if (device) break; 4640 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 4641 if (device) break; 4642 } 4643 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_LINE; 4644 if (device) break; 4645 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4646 if (device) break; 4647 device = mDefaultOutputDevice->mDeviceType; 4648 if (device == AUDIO_DEVICE_NONE) { 4649 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE, FORCE_SPEAKER"); 4650 } 4651 break; 4652 } 4653 break; 4654 4655 case STRATEGY_SONIFICATION: 4656 4657 // If incall, just select the STRATEGY_PHONE device: The rest of the behavior is handled by 4658 // handleIncallSonification(). 4659 if (isInCall()) { 4660 device = getDeviceForStrategy(STRATEGY_PHONE, false /*fromCache*/); 4661 break; 4662 } 4663 // FALL THROUGH 4664 4665 case STRATEGY_ENFORCED_AUDIBLE: 4666 // strategy STRATEGY_ENFORCED_AUDIBLE uses same routing policy as STRATEGY_SONIFICATION 4667 // except: 4668 // - when in call where it doesn't default to STRATEGY_PHONE behavior 4669 // - in countries where not enforced in which case it follows STRATEGY_MEDIA 4670 4671 if ((strategy == STRATEGY_SONIFICATION) || 4672 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED)) { 4673 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4674 if (device == AUDIO_DEVICE_NONE) { 4675 ALOGE("getDeviceForStrategy() speaker device not found for STRATEGY_SONIFICATION"); 4676 } 4677 } 4678 // The second device used for sonification is the same as the device used by media strategy 4679 // FALL THROUGH 4680 4681 // FIXME: STRATEGY_ACCESSIBILITY and STRATEGY_REROUTING follow STRATEGY_MEDIA for now 4682 case STRATEGY_ACCESSIBILITY: 4683 if (strategy == STRATEGY_ACCESSIBILITY) { 4684 // do not route accessibility prompts to a digital output currently configured with a 4685 // compressed format as they would likely not be mixed and dropped. 4686 for (size_t i = 0; i < mOutputs.size(); i++) { 4687 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 4688 audio_devices_t devices = desc->device() & 4689 (AUDIO_DEVICE_OUT_HDMI | AUDIO_DEVICE_OUT_SPDIF | AUDIO_DEVICE_OUT_HDMI_ARC); 4690 if (desc->isActive() && !audio_is_linear_pcm(desc->mFormat) && 4691 devices != AUDIO_DEVICE_NONE) { 4692 availableOutputDeviceTypes = availableOutputDeviceTypes & ~devices; 4693 } 4694 } 4695 } 4696 // FALL THROUGH 4697 4698 case STRATEGY_REROUTING: 4699 case STRATEGY_MEDIA: { 4700 uint32_t device2 = AUDIO_DEVICE_NONE; 4701 if (strategy != STRATEGY_SONIFICATION) { 4702 // no sonification on remote submix (e.g. WFD) 4703 if (mAvailableOutputDevices.getDevice(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, String8("0")) != 0) { 4704 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_REMOTE_SUBMIX; 4705 } 4706 } 4707 if ((device2 == AUDIO_DEVICE_NONE) && 4708 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 4709 (getA2dpOutput() != 0)) { 4710 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; 4711 if (device2 == AUDIO_DEVICE_NONE) { 4712 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; 4713 } 4714 if (device2 == AUDIO_DEVICE_NONE) { 4715 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; 4716 } 4717 } 4718 if ((device2 == AUDIO_DEVICE_NONE) && 4719 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] == AUDIO_POLICY_FORCE_SPEAKER)) { 4720 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4721 } 4722 if (device2 == AUDIO_DEVICE_NONE) { 4723 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; 4724 } 4725 if ((device2 == AUDIO_DEVICE_NONE)) { 4726 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_LINE; 4727 } 4728 if (device2 == AUDIO_DEVICE_NONE) { 4729 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADSET; 4730 } 4731 if (device2 == AUDIO_DEVICE_NONE) { 4732 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 4733 } 4734 if (device2 == AUDIO_DEVICE_NONE) { 4735 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 4736 } 4737 if (device2 == AUDIO_DEVICE_NONE) { 4738 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 4739 } 4740 if ((device2 == AUDIO_DEVICE_NONE) && (strategy != STRATEGY_SONIFICATION)) { 4741 // no sonification on aux digital (e.g. HDMI) 4742 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 4743 } 4744 if ((device2 == AUDIO_DEVICE_NONE) && 4745 (mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK] == AUDIO_POLICY_FORCE_ANALOG_DOCK)) { 4746 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 4747 } 4748 if (device2 == AUDIO_DEVICE_NONE) { 4749 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4750 } 4751 int device3 = AUDIO_DEVICE_NONE; 4752 if (strategy == STRATEGY_MEDIA) { 4753 // ARC, SPDIF and AUX_LINE can co-exist with others. 4754 device3 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_HDMI_ARC; 4755 device3 |= (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPDIF); 4756 device3 |= (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_LINE); 4757 } 4758 4759 device2 |= device3; 4760 // device is DEVICE_OUT_SPEAKER if we come from case STRATEGY_SONIFICATION or 4761 // STRATEGY_ENFORCED_AUDIBLE, AUDIO_DEVICE_NONE otherwise 4762 device |= device2; 4763 4764 // If hdmi system audio mode is on, remove speaker out of output list. 4765 if ((strategy == STRATEGY_MEDIA) && 4766 (mForceUse[AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO] == 4767 AUDIO_POLICY_FORCE_HDMI_SYSTEM_AUDIO_ENFORCED)) { 4768 device &= ~AUDIO_DEVICE_OUT_SPEAKER; 4769 } 4770 4771 if (device) break; 4772 device = mDefaultOutputDevice->mDeviceType; 4773 if (device == AUDIO_DEVICE_NONE) { 4774 ALOGE("getDeviceForStrategy() no device found for STRATEGY_MEDIA"); 4775 } 4776 } break; 4777 4778 default: 4779 ALOGW("getDeviceForStrategy() unknown strategy: %d", strategy); 4780 break; 4781 } 4782 4783 ALOGVV("getDeviceForStrategy() strategy %d, device %x", strategy, device); 4784 return device; 4785} 4786 4787void AudioPolicyManager::updateDevicesAndOutputs() 4788{ 4789 for (int i = 0; i < NUM_STRATEGIES; i++) { 4790 mDeviceForStrategy[i] = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 4791 } 4792 mPreviousOutputs = mOutputs; 4793} 4794 4795uint32_t AudioPolicyManager::checkDeviceMuteStrategies(sp<AudioOutputDescriptor> outputDesc, 4796 audio_devices_t prevDevice, 4797 uint32_t delayMs) 4798{ 4799 // mute/unmute strategies using an incompatible device combination 4800 // if muting, wait for the audio in pcm buffer to be drained before proceeding 4801 // if unmuting, unmute only after the specified delay 4802 if (outputDesc->isDuplicated()) { 4803 return 0; 4804 } 4805 4806 uint32_t muteWaitMs = 0; 4807 audio_devices_t device = outputDesc->device(); 4808 bool shouldMute = outputDesc->isActive() && (popcount(device) >= 2); 4809 4810 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 4811 audio_devices_t curDevice = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 4812 curDevice = curDevice & outputDesc->mProfile->mSupportedDevices.types(); 4813 bool mute = shouldMute && (curDevice & device) && (curDevice != device); 4814 bool doMute = false; 4815 4816 if (mute && !outputDesc->mStrategyMutedByDevice[i]) { 4817 doMute = true; 4818 outputDesc->mStrategyMutedByDevice[i] = true; 4819 } else if (!mute && outputDesc->mStrategyMutedByDevice[i]){ 4820 doMute = true; 4821 outputDesc->mStrategyMutedByDevice[i] = false; 4822 } 4823 if (doMute) { 4824 for (size_t j = 0; j < mOutputs.size(); j++) { 4825 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(j); 4826 // skip output if it does not share any device with current output 4827 if ((desc->supportedDevices() & outputDesc->supportedDevices()) 4828 == AUDIO_DEVICE_NONE) { 4829 continue; 4830 } 4831 audio_io_handle_t curOutput = mOutputs.keyAt(j); 4832 ALOGVV("checkDeviceMuteStrategies() %s strategy %d (curDevice %04x) on output %d", 4833 mute ? "muting" : "unmuting", i, curDevice, curOutput); 4834 setStrategyMute((routing_strategy)i, mute, curOutput, mute ? 0 : delayMs); 4835 if (desc->isStrategyActive((routing_strategy)i)) { 4836 if (mute) { 4837 // FIXME: should not need to double latency if volume could be applied 4838 // immediately by the audioflinger mixer. We must account for the delay 4839 // between now and the next time the audioflinger thread for this output 4840 // will process a buffer (which corresponds to one buffer size, 4841 // usually 1/2 or 1/4 of the latency). 4842 if (muteWaitMs < desc->latency() * 2) { 4843 muteWaitMs = desc->latency() * 2; 4844 } 4845 } 4846 } 4847 } 4848 } 4849 } 4850 4851 // temporary mute output if device selection changes to avoid volume bursts due to 4852 // different per device volumes 4853 if (outputDesc->isActive() && (device != prevDevice)) { 4854 if (muteWaitMs < outputDesc->latency() * 2) { 4855 muteWaitMs = outputDesc->latency() * 2; 4856 } 4857 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 4858 if (outputDesc->isStrategyActive((routing_strategy)i)) { 4859 setStrategyMute((routing_strategy)i, true, outputDesc->mIoHandle); 4860 // do tempMute unmute after twice the mute wait time 4861 setStrategyMute((routing_strategy)i, false, outputDesc->mIoHandle, 4862 muteWaitMs *2, device); 4863 } 4864 } 4865 } 4866 4867 // wait for the PCM output buffers to empty before proceeding with the rest of the command 4868 if (muteWaitMs > delayMs) { 4869 muteWaitMs -= delayMs; 4870 usleep(muteWaitMs * 1000); 4871 return muteWaitMs; 4872 } 4873 return 0; 4874} 4875 4876uint32_t AudioPolicyManager::setOutputDevice(audio_io_handle_t output, 4877 audio_devices_t device, 4878 bool force, 4879 int delayMs, 4880 audio_patch_handle_t *patchHandle, 4881 const char* address) 4882{ 4883 ALOGV("setOutputDevice() output %d device %04x delayMs %d", output, device, delayMs); 4884 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4885 AudioParameter param; 4886 uint32_t muteWaitMs; 4887 4888 if (outputDesc->isDuplicated()) { 4889 muteWaitMs = setOutputDevice(outputDesc->mOutput1->mIoHandle, device, force, delayMs); 4890 muteWaitMs += setOutputDevice(outputDesc->mOutput2->mIoHandle, device, force, delayMs); 4891 return muteWaitMs; 4892 } 4893 // no need to proceed if new device is not AUDIO_DEVICE_NONE and not supported by current 4894 // output profile 4895 if ((device != AUDIO_DEVICE_NONE) && 4896 ((device & outputDesc->mProfile->mSupportedDevices.types()) == 0)) { 4897 return 0; 4898 } 4899 4900 // filter devices according to output selected 4901 device = (audio_devices_t)(device & outputDesc->mProfile->mSupportedDevices.types()); 4902 4903 audio_devices_t prevDevice = outputDesc->mDevice; 4904 4905 ALOGV("setOutputDevice() prevDevice %04x", prevDevice); 4906 4907 if (device != AUDIO_DEVICE_NONE) { 4908 outputDesc->mDevice = device; 4909 } 4910 muteWaitMs = checkDeviceMuteStrategies(outputDesc, prevDevice, delayMs); 4911 4912 // Do not change the routing if: 4913 // the requested device is AUDIO_DEVICE_NONE 4914 // OR the requested device is the same as current device 4915 // AND force is not specified 4916 // AND the output is connected by a valid audio patch. 4917 // Doing this check here allows the caller to call setOutputDevice() without conditions 4918 if ((device == AUDIO_DEVICE_NONE || device == prevDevice) && !force && 4919 outputDesc->mPatchHandle != 0) { 4920 ALOGV("setOutputDevice() setting same device %04x or null device for output %d", 4921 device, output); 4922 return muteWaitMs; 4923 } 4924 4925 ALOGV("setOutputDevice() changing device"); 4926 4927 // do the routing 4928 if (device == AUDIO_DEVICE_NONE) { 4929 resetOutputDevice(output, delayMs, NULL); 4930 } else { 4931 DeviceVector deviceList = (address == NULL) ? 4932 mAvailableOutputDevices.getDevicesFromType(device) 4933 : mAvailableOutputDevices.getDevicesFromTypeAddr(device, String8(address)); 4934 if (!deviceList.isEmpty()) { 4935 struct audio_patch patch; 4936 outputDesc->toAudioPortConfig(&patch.sources[0]); 4937 patch.num_sources = 1; 4938 patch.num_sinks = 0; 4939 for (size_t i = 0; i < deviceList.size() && i < AUDIO_PATCH_PORTS_MAX; i++) { 4940 deviceList.itemAt(i)->toAudioPortConfig(&patch.sinks[i]); 4941 patch.num_sinks++; 4942 } 4943 ssize_t index; 4944 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 4945 index = mAudioPatches.indexOfKey(*patchHandle); 4946 } else { 4947 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4948 } 4949 sp< AudioPatch> patchDesc; 4950 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 4951 if (index >= 0) { 4952 patchDesc = mAudioPatches.valueAt(index); 4953 afPatchHandle = patchDesc->mAfPatchHandle; 4954 } 4955 4956 status_t status = mpClientInterface->createAudioPatch(&patch, 4957 &afPatchHandle, 4958 delayMs); 4959 ALOGV("setOutputDevice() createAudioPatch returned %d patchHandle %d" 4960 "num_sources %d num_sinks %d", 4961 status, afPatchHandle, patch.num_sources, patch.num_sinks); 4962 if (status == NO_ERROR) { 4963 if (index < 0) { 4964 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 4965 &patch, mUidCached); 4966 addAudioPatch(patchDesc->mHandle, patchDesc); 4967 } else { 4968 patchDesc->mPatch = patch; 4969 } 4970 patchDesc->mAfPatchHandle = afPatchHandle; 4971 patchDesc->mUid = mUidCached; 4972 if (patchHandle) { 4973 *patchHandle = patchDesc->mHandle; 4974 } 4975 outputDesc->mPatchHandle = patchDesc->mHandle; 4976 nextAudioPortGeneration(); 4977 mpClientInterface->onAudioPatchListUpdate(); 4978 } 4979 } 4980 4981 // inform all input as well 4982 for (size_t i = 0; i < mInputs.size(); i++) { 4983 const sp<AudioInputDescriptor> inputDescriptor = mInputs.valueAt(i); 4984 if (!isVirtualInputDevice(inputDescriptor->mDevice)) { 4985 AudioParameter inputCmd = AudioParameter(); 4986 ALOGV("%s: inform input %d of device:%d", __func__, 4987 inputDescriptor->mIoHandle, device); 4988 inputCmd.addInt(String8(AudioParameter::keyRouting),device); 4989 mpClientInterface->setParameters(inputDescriptor->mIoHandle, 4990 inputCmd.toString(), 4991 delayMs); 4992 } 4993 } 4994 } 4995 4996 // update stream volumes according to new device 4997 applyStreamVolumes(output, device, delayMs); 4998 4999 return muteWaitMs; 5000} 5001 5002status_t AudioPolicyManager::resetOutputDevice(audio_io_handle_t output, 5003 int delayMs, 5004 audio_patch_handle_t *patchHandle) 5005{ 5006 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 5007 ssize_t index; 5008 if (patchHandle) { 5009 index = mAudioPatches.indexOfKey(*patchHandle); 5010 } else { 5011 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 5012 } 5013 if (index < 0) { 5014 return INVALID_OPERATION; 5015 } 5016 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 5017 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, delayMs); 5018 ALOGV("resetOutputDevice() releaseAudioPatch returned %d", status); 5019 outputDesc->mPatchHandle = 0; 5020 removeAudioPatch(patchDesc->mHandle); 5021 nextAudioPortGeneration(); 5022 mpClientInterface->onAudioPatchListUpdate(); 5023 return status; 5024} 5025 5026status_t AudioPolicyManager::setInputDevice(audio_io_handle_t input, 5027 audio_devices_t device, 5028 bool force, 5029 audio_patch_handle_t *patchHandle) 5030{ 5031 status_t status = NO_ERROR; 5032 5033 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 5034 if ((device != AUDIO_DEVICE_NONE) && ((device != inputDesc->mDevice) || force)) { 5035 inputDesc->mDevice = device; 5036 5037 DeviceVector deviceList = mAvailableInputDevices.getDevicesFromType(device); 5038 if (!deviceList.isEmpty()) { 5039 struct audio_patch patch; 5040 inputDesc->toAudioPortConfig(&patch.sinks[0]); 5041 // AUDIO_SOURCE_HOTWORD is for internal use only: 5042 // handled as AUDIO_SOURCE_VOICE_RECOGNITION by the audio HAL 5043 if (patch.sinks[0].ext.mix.usecase.source == AUDIO_SOURCE_HOTWORD && 5044 !inputDesc->mIsSoundTrigger) { 5045 patch.sinks[0].ext.mix.usecase.source = AUDIO_SOURCE_VOICE_RECOGNITION; 5046 } 5047 patch.num_sinks = 1; 5048 //only one input device for now 5049 deviceList.itemAt(0)->toAudioPortConfig(&patch.sources[0]); 5050 patch.num_sources = 1; 5051 ssize_t index; 5052 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 5053 index = mAudioPatches.indexOfKey(*patchHandle); 5054 } else { 5055 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 5056 } 5057 sp< AudioPatch> patchDesc; 5058 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 5059 if (index >= 0) { 5060 patchDesc = mAudioPatches.valueAt(index); 5061 afPatchHandle = patchDesc->mAfPatchHandle; 5062 } 5063 5064 status_t status = mpClientInterface->createAudioPatch(&patch, 5065 &afPatchHandle, 5066 0); 5067 ALOGV("setInputDevice() createAudioPatch returned %d patchHandle %d", 5068 status, afPatchHandle); 5069 if (status == NO_ERROR) { 5070 if (index < 0) { 5071 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 5072 &patch, mUidCached); 5073 addAudioPatch(patchDesc->mHandle, patchDesc); 5074 } else { 5075 patchDesc->mPatch = patch; 5076 } 5077 patchDesc->mAfPatchHandle = afPatchHandle; 5078 patchDesc->mUid = mUidCached; 5079 if (patchHandle) { 5080 *patchHandle = patchDesc->mHandle; 5081 } 5082 inputDesc->mPatchHandle = patchDesc->mHandle; 5083 nextAudioPortGeneration(); 5084 mpClientInterface->onAudioPatchListUpdate(); 5085 } 5086 } 5087 } 5088 return status; 5089} 5090 5091status_t AudioPolicyManager::resetInputDevice(audio_io_handle_t input, 5092 audio_patch_handle_t *patchHandle) 5093{ 5094 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 5095 ssize_t index; 5096 if (patchHandle) { 5097 index = mAudioPatches.indexOfKey(*patchHandle); 5098 } else { 5099 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 5100 } 5101 if (index < 0) { 5102 return INVALID_OPERATION; 5103 } 5104 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 5105 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 5106 ALOGV("resetInputDevice() releaseAudioPatch returned %d", status); 5107 inputDesc->mPatchHandle = 0; 5108 removeAudioPatch(patchDesc->mHandle); 5109 nextAudioPortGeneration(); 5110 mpClientInterface->onAudioPatchListUpdate(); 5111 return status; 5112} 5113 5114sp<AudioPolicyManager::IOProfile> AudioPolicyManager::getInputProfile(audio_devices_t device, 5115 String8 address, 5116 uint32_t& samplingRate, 5117 audio_format_t format, 5118 audio_channel_mask_t channelMask, 5119 audio_input_flags_t flags) 5120{ 5121 // Choose an input profile based on the requested capture parameters: select the first available 5122 // profile supporting all requested parameters. 5123 5124 for (size_t i = 0; i < mHwModules.size(); i++) 5125 { 5126 if (mHwModules[i]->mHandle == 0) { 5127 continue; 5128 } 5129 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 5130 { 5131 sp<IOProfile> profile = mHwModules[i]->mInputProfiles[j]; 5132 // profile->log(); 5133 if (profile->isCompatibleProfile(device, address, samplingRate, 5134 &samplingRate /*updatedSamplingRate*/, 5135 format, channelMask, (audio_output_flags_t) flags)) { 5136 5137 return profile; 5138 } 5139 } 5140 } 5141 return NULL; 5142} 5143 5144 5145audio_devices_t AudioPolicyManager::getDeviceAndMixForInputSource(audio_source_t inputSource, 5146 AudioMix **policyMix) 5147{ 5148 audio_devices_t availableDeviceTypes = mAvailableInputDevices.types() & 5149 ~AUDIO_DEVICE_BIT_IN; 5150 5151 for (size_t i = 0; i < mPolicyMixes.size(); i++) { 5152 if (mPolicyMixes[i]->mMix.mMixType != MIX_TYPE_RECORDERS) { 5153 continue; 5154 } 5155 for (size_t j = 0; j < mPolicyMixes[i]->mMix.mCriteria.size(); j++) { 5156 if ((RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET == mPolicyMixes[i]->mMix.mCriteria[j].mRule && 5157 mPolicyMixes[i]->mMix.mCriteria[j].mAttr.mSource == inputSource) || 5158 (RULE_EXCLUDE_ATTRIBUTE_CAPTURE_PRESET == mPolicyMixes[i]->mMix.mCriteria[j].mRule && 5159 mPolicyMixes[i]->mMix.mCriteria[j].mAttr.mSource != inputSource)) { 5160 if (availableDeviceTypes & AUDIO_DEVICE_IN_REMOTE_SUBMIX) { 5161 if (policyMix != NULL) { 5162 *policyMix = &mPolicyMixes[i]->mMix; 5163 } 5164 return AUDIO_DEVICE_IN_REMOTE_SUBMIX; 5165 } 5166 break; 5167 } 5168 } 5169 } 5170 5171 return getDeviceForInputSource(inputSource); 5172} 5173 5174audio_devices_t AudioPolicyManager::getDeviceForInputSource(audio_source_t inputSource) 5175{ 5176 uint32_t device = AUDIO_DEVICE_NONE; 5177 audio_devices_t availableDeviceTypes = mAvailableInputDevices.types() & 5178 ~AUDIO_DEVICE_BIT_IN; 5179 5180 switch (inputSource) { 5181 case AUDIO_SOURCE_VOICE_UPLINK: 5182 if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) { 5183 device = AUDIO_DEVICE_IN_VOICE_CALL; 5184 break; 5185 } 5186 break; 5187 5188 case AUDIO_SOURCE_DEFAULT: 5189 case AUDIO_SOURCE_MIC: 5190 if (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_A2DP) { 5191 device = AUDIO_DEVICE_IN_BLUETOOTH_A2DP; 5192 } else if ((mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO) && 5193 (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET)) { 5194 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 5195 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 5196 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 5197 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 5198 device = AUDIO_DEVICE_IN_USB_DEVICE; 5199 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 5200 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 5201 } 5202 break; 5203 5204 case AUDIO_SOURCE_VOICE_COMMUNICATION: 5205 // Allow only use of devices on primary input if in call and HAL does not support routing 5206 // to voice call path. 5207 if ((mPhoneState == AUDIO_MODE_IN_CALL) && 5208 (mAvailableOutputDevices.types() & AUDIO_DEVICE_OUT_TELEPHONY_TX) == 0) { 5209 availableDeviceTypes = availablePrimaryInputDevices() & ~AUDIO_DEVICE_BIT_IN; 5210 } 5211 5212 switch (mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]) { 5213 case AUDIO_POLICY_FORCE_BT_SCO: 5214 // if SCO device is requested but no SCO device is available, fall back to default case 5215 if (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) { 5216 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 5217 break; 5218 } 5219 // FALL THROUGH 5220 5221 default: // FORCE_NONE 5222 if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 5223 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 5224 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 5225 device = AUDIO_DEVICE_IN_USB_DEVICE; 5226 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 5227 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 5228 } 5229 break; 5230 5231 case AUDIO_POLICY_FORCE_SPEAKER: 5232 if (availableDeviceTypes & AUDIO_DEVICE_IN_BACK_MIC) { 5233 device = AUDIO_DEVICE_IN_BACK_MIC; 5234 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 5235 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 5236 } 5237 break; 5238 } 5239 break; 5240 5241 case AUDIO_SOURCE_VOICE_RECOGNITION: 5242 case AUDIO_SOURCE_HOTWORD: 5243 if (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO && 5244 availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) { 5245 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 5246 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 5247 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 5248 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 5249 device = AUDIO_DEVICE_IN_USB_DEVICE; 5250 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 5251 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 5252 } 5253 break; 5254 case AUDIO_SOURCE_CAMCORDER: 5255 if (availableDeviceTypes & AUDIO_DEVICE_IN_BACK_MIC) { 5256 device = AUDIO_DEVICE_IN_BACK_MIC; 5257 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 5258 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 5259 } 5260 break; 5261 case AUDIO_SOURCE_VOICE_DOWNLINK: 5262 case AUDIO_SOURCE_VOICE_CALL: 5263 if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) { 5264 device = AUDIO_DEVICE_IN_VOICE_CALL; 5265 } 5266 break; 5267 case AUDIO_SOURCE_REMOTE_SUBMIX: 5268 if (availableDeviceTypes & AUDIO_DEVICE_IN_REMOTE_SUBMIX) { 5269 device = AUDIO_DEVICE_IN_REMOTE_SUBMIX; 5270 } 5271 break; 5272 case AUDIO_SOURCE_FM_TUNER: 5273 if (availableDeviceTypes & AUDIO_DEVICE_IN_FM_TUNER) { 5274 device = AUDIO_DEVICE_IN_FM_TUNER; 5275 } 5276 break; 5277 default: 5278 ALOGW("getDeviceForInputSource() invalid input source %d", inputSource); 5279 break; 5280 } 5281 ALOGV("getDeviceForInputSource()input source %d, device %08x", inputSource, device); 5282 return device; 5283} 5284 5285bool AudioPolicyManager::isVirtualInputDevice(audio_devices_t device) 5286{ 5287 if ((device & AUDIO_DEVICE_BIT_IN) != 0) { 5288 device &= ~AUDIO_DEVICE_BIT_IN; 5289 if ((popcount(device) == 1) && ((device & ~APM_AUDIO_IN_DEVICE_VIRTUAL_ALL) == 0)) 5290 return true; 5291 } 5292 return false; 5293} 5294 5295bool AudioPolicyManager::deviceDistinguishesOnAddress(audio_devices_t device) { 5296 return ((device & APM_AUDIO_DEVICE_MATCH_ADDRESS_ALL & ~AUDIO_DEVICE_BIT_IN) != 0); 5297} 5298 5299audio_io_handle_t AudioPolicyManager::getActiveInput(bool ignoreVirtualInputs) 5300{ 5301 for (size_t i = 0; i < mInputs.size(); i++) { 5302 const sp<AudioInputDescriptor> input_descriptor = mInputs.valueAt(i); 5303 if ((input_descriptor->mRefCount > 0) 5304 && (!ignoreVirtualInputs || !isVirtualInputDevice(input_descriptor->mDevice))) { 5305 return mInputs.keyAt(i); 5306 } 5307 } 5308 return 0; 5309} 5310 5311uint32_t AudioPolicyManager::activeInputsCount() const 5312{ 5313 uint32_t count = 0; 5314 for (size_t i = 0; i < mInputs.size(); i++) { 5315 const sp<AudioInputDescriptor> desc = mInputs.valueAt(i); 5316 if (desc->mRefCount > 0) { 5317 count++; 5318 } 5319 } 5320 return count; 5321} 5322 5323 5324audio_devices_t AudioPolicyManager::getDeviceForVolume(audio_devices_t device) 5325{ 5326 if (device == AUDIO_DEVICE_NONE) { 5327 // this happens when forcing a route update and no track is active on an output. 5328 // In this case the returned category is not important. 5329 device = AUDIO_DEVICE_OUT_SPEAKER; 5330 } else if (popcount(device) > 1) { 5331 // Multiple device selection is either: 5332 // - speaker + one other device: give priority to speaker in this case. 5333 // - one A2DP device + another device: happens with duplicated output. In this case 5334 // retain the device on the A2DP output as the other must not correspond to an active 5335 // selection if not the speaker. 5336 // - HDMI-CEC system audio mode only output: give priority to available item in order. 5337 if (device & AUDIO_DEVICE_OUT_SPEAKER) { 5338 device = AUDIO_DEVICE_OUT_SPEAKER; 5339 } else if (device & AUDIO_DEVICE_OUT_HDMI_ARC) { 5340 device = AUDIO_DEVICE_OUT_HDMI_ARC; 5341 } else if (device & AUDIO_DEVICE_OUT_AUX_LINE) { 5342 device = AUDIO_DEVICE_OUT_AUX_LINE; 5343 } else if (device & AUDIO_DEVICE_OUT_SPDIF) { 5344 device = AUDIO_DEVICE_OUT_SPDIF; 5345 } else { 5346 device = (audio_devices_t)(device & AUDIO_DEVICE_OUT_ALL_A2DP); 5347 } 5348 } 5349 5350 /*SPEAKER_SAFE is an alias of SPEAKER for purposes of volume control*/ 5351 if (device == AUDIO_DEVICE_OUT_SPEAKER_SAFE) 5352 device = AUDIO_DEVICE_OUT_SPEAKER; 5353 5354 ALOGW_IF(popcount(device) != 1, 5355 "getDeviceForVolume() invalid device combination: %08x", 5356 device); 5357 5358 return device; 5359} 5360 5361AudioPolicyManager::device_category AudioPolicyManager::getDeviceCategory(audio_devices_t device) 5362{ 5363 switch(getDeviceForVolume(device)) { 5364 case AUDIO_DEVICE_OUT_EARPIECE: 5365 return DEVICE_CATEGORY_EARPIECE; 5366 case AUDIO_DEVICE_OUT_WIRED_HEADSET: 5367 case AUDIO_DEVICE_OUT_WIRED_HEADPHONE: 5368 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO: 5369 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET: 5370 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP: 5371 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES: 5372 return DEVICE_CATEGORY_HEADSET; 5373 case AUDIO_DEVICE_OUT_LINE: 5374 case AUDIO_DEVICE_OUT_AUX_DIGITAL: 5375 /*USB? Remote submix?*/ 5376 return DEVICE_CATEGORY_EXT_MEDIA; 5377 case AUDIO_DEVICE_OUT_SPEAKER: 5378 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT: 5379 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER: 5380 case AUDIO_DEVICE_OUT_USB_ACCESSORY: 5381 case AUDIO_DEVICE_OUT_USB_DEVICE: 5382 case AUDIO_DEVICE_OUT_REMOTE_SUBMIX: 5383 default: 5384 return DEVICE_CATEGORY_SPEAKER; 5385 } 5386} 5387 5388/* static */ 5389float AudioPolicyManager::volIndexToAmpl(audio_devices_t device, const StreamDescriptor& streamDesc, 5390 int indexInUi) 5391{ 5392 device_category deviceCategory = getDeviceCategory(device); 5393 const VolumeCurvePoint *curve = streamDesc.mVolumeCurve[deviceCategory]; 5394 5395 // the volume index in the UI is relative to the min and max volume indices for this stream type 5396 int nbSteps = 1 + curve[VOLMAX].mIndex - 5397 curve[VOLMIN].mIndex; 5398 int volIdx = (nbSteps * (indexInUi - streamDesc.mIndexMin)) / 5399 (streamDesc.mIndexMax - streamDesc.mIndexMin); 5400 5401 // find what part of the curve this index volume belongs to, or if it's out of bounds 5402 int segment = 0; 5403 if (volIdx < curve[VOLMIN].mIndex) { // out of bounds 5404 return 0.0f; 5405 } else if (volIdx < curve[VOLKNEE1].mIndex) { 5406 segment = 0; 5407 } else if (volIdx < curve[VOLKNEE2].mIndex) { 5408 segment = 1; 5409 } else if (volIdx <= curve[VOLMAX].mIndex) { 5410 segment = 2; 5411 } else { // out of bounds 5412 return 1.0f; 5413 } 5414 5415 // linear interpolation in the attenuation table in dB 5416 float decibels = curve[segment].mDBAttenuation + 5417 ((float)(volIdx - curve[segment].mIndex)) * 5418 ( (curve[segment+1].mDBAttenuation - 5419 curve[segment].mDBAttenuation) / 5420 ((float)(curve[segment+1].mIndex - 5421 curve[segment].mIndex)) ); 5422 5423 float amplification = exp( decibels * 0.115129f); // exp( dB * ln(10) / 20 ) 5424 5425 ALOGVV("VOLUME vol index=[%d %d %d], dB=[%.1f %.1f %.1f] ampl=%.5f", 5426 curve[segment].mIndex, volIdx, 5427 curve[segment+1].mIndex, 5428 curve[segment].mDBAttenuation, 5429 decibels, 5430 curve[segment+1].mDBAttenuation, 5431 amplification); 5432 5433 return amplification; 5434} 5435 5436const AudioPolicyManager::VolumeCurvePoint 5437 AudioPolicyManager::sDefaultVolumeCurve[AudioPolicyManager::VOLCNT] = { 5438 {1, -49.5f}, {33, -33.5f}, {66, -17.0f}, {100, 0.0f} 5439}; 5440 5441const AudioPolicyManager::VolumeCurvePoint 5442 AudioPolicyManager::sDefaultMediaVolumeCurve[AudioPolicyManager::VOLCNT] = { 5443 {1, -58.0f}, {20, -40.0f}, {60, -17.0f}, {100, 0.0f} 5444}; 5445 5446const AudioPolicyManager::VolumeCurvePoint 5447 AudioPolicyManager::sExtMediaSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 5448 {1, -58.0f}, {20, -40.0f}, {60, -21.0f}, {100, -10.0f} 5449}; 5450 5451const AudioPolicyManager::VolumeCurvePoint 5452 AudioPolicyManager::sSpeakerMediaVolumeCurve[AudioPolicyManager::VOLCNT] = { 5453 {1, -56.0f}, {20, -34.0f}, {60, -11.0f}, {100, 0.0f} 5454}; 5455 5456const AudioPolicyManager::VolumeCurvePoint 5457 AudioPolicyManager::sSpeakerMediaVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 5458 {1, -55.0f}, {20, -43.0f}, {86, -12.0f}, {100, 0.0f} 5459}; 5460 5461const AudioPolicyManager::VolumeCurvePoint 5462 AudioPolicyManager::sSpeakerSonificationVolumeCurve[AudioPolicyManager::VOLCNT] = { 5463 {1, -29.7f}, {33, -20.1f}, {66, -10.2f}, {100, 0.0f} 5464}; 5465 5466const AudioPolicyManager::VolumeCurvePoint 5467 AudioPolicyManager::sSpeakerSonificationVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 5468 {1, -35.7f}, {33, -26.1f}, {66, -13.2f}, {100, 0.0f} 5469}; 5470 5471// AUDIO_STREAM_SYSTEM, AUDIO_STREAM_ENFORCED_AUDIBLE and AUDIO_STREAM_DTMF volume tracks 5472// AUDIO_STREAM_RING on phones and AUDIO_STREAM_MUSIC on tablets. 5473// AUDIO_STREAM_DTMF tracks AUDIO_STREAM_VOICE_CALL while in call (See AudioService.java). 5474// The range is constrained between -24dB and -6dB over speaker and -30dB and -18dB over headset. 5475 5476const AudioPolicyManager::VolumeCurvePoint 5477 AudioPolicyManager::sDefaultSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 5478 {1, -24.0f}, {33, -18.0f}, {66, -12.0f}, {100, -6.0f} 5479}; 5480 5481const AudioPolicyManager::VolumeCurvePoint 5482 AudioPolicyManager::sDefaultSystemVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 5483 {1, -34.0f}, {33, -24.0f}, {66, -15.0f}, {100, -6.0f} 5484}; 5485 5486const AudioPolicyManager::VolumeCurvePoint 5487 AudioPolicyManager::sHeadsetSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 5488 {1, -30.0f}, {33, -26.0f}, {66, -22.0f}, {100, -18.0f} 5489}; 5490 5491const AudioPolicyManager::VolumeCurvePoint 5492 AudioPolicyManager::sDefaultVoiceVolumeCurve[AudioPolicyManager::VOLCNT] = { 5493 {0, -42.0f}, {33, -28.0f}, {66, -14.0f}, {100, 0.0f} 5494}; 5495 5496const AudioPolicyManager::VolumeCurvePoint 5497 AudioPolicyManager::sSpeakerVoiceVolumeCurve[AudioPolicyManager::VOLCNT] = { 5498 {0, -24.0f}, {33, -16.0f}, {66, -8.0f}, {100, 0.0f} 5499}; 5500 5501const AudioPolicyManager::VolumeCurvePoint 5502 AudioPolicyManager::sLinearVolumeCurve[AudioPolicyManager::VOLCNT] = { 5503 {0, -96.0f}, {33, -68.0f}, {66, -34.0f}, {100, 0.0f} 5504}; 5505 5506const AudioPolicyManager::VolumeCurvePoint 5507 AudioPolicyManager::sSilentVolumeCurve[AudioPolicyManager::VOLCNT] = { 5508 {0, -96.0f}, {1, -96.0f}, {2, -96.0f}, {100, -96.0f} 5509}; 5510 5511const AudioPolicyManager::VolumeCurvePoint 5512 AudioPolicyManager::sFullScaleVolumeCurve[AudioPolicyManager::VOLCNT] = { 5513 {0, 0.0f}, {1, 0.0f}, {2, 0.0f}, {100, 0.0f} 5514}; 5515 5516const AudioPolicyManager::VolumeCurvePoint 5517 *AudioPolicyManager::sVolumeProfiles[AUDIO_STREAM_CNT] 5518 [AudioPolicyManager::DEVICE_CATEGORY_CNT] = { 5519 { // AUDIO_STREAM_VOICE_CALL 5520 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 5521 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5522 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5523 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5524 }, 5525 { // AUDIO_STREAM_SYSTEM 5526 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 5527 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5528 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5529 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5530 }, 5531 { // AUDIO_STREAM_RING 5532 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 5533 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5534 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5535 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5536 }, 5537 { // AUDIO_STREAM_MUSIC 5538 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 5539 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5540 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5541 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5542 }, 5543 { // AUDIO_STREAM_ALARM 5544 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 5545 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5546 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5547 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5548 }, 5549 { // AUDIO_STREAM_NOTIFICATION 5550 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 5551 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5552 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5553 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5554 }, 5555 { // AUDIO_STREAM_BLUETOOTH_SCO 5556 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 5557 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5558 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5559 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5560 }, 5561 { // AUDIO_STREAM_ENFORCED_AUDIBLE 5562 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 5563 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5564 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5565 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5566 }, 5567 { // AUDIO_STREAM_DTMF 5568 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 5569 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5570 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5571 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5572 }, 5573 { // AUDIO_STREAM_TTS 5574 // "Transmitted Through Speaker": always silent except on DEVICE_CATEGORY_SPEAKER 5575 sSilentVolumeCurve, // DEVICE_CATEGORY_HEADSET 5576 sLinearVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5577 sSilentVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5578 sSilentVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5579 }, 5580 { // AUDIO_STREAM_ACCESSIBILITY 5581 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 5582 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5583 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5584 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5585 }, 5586 { // AUDIO_STREAM_REROUTING 5587 sFullScaleVolumeCurve, // DEVICE_CATEGORY_HEADSET 5588 sFullScaleVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5589 sFullScaleVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5590 sFullScaleVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5591 }, 5592 { // AUDIO_STREAM_PATCH 5593 sFullScaleVolumeCurve, // DEVICE_CATEGORY_HEADSET 5594 sFullScaleVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5595 sFullScaleVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5596 sFullScaleVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5597 }, 5598}; 5599 5600void AudioPolicyManager::initializeVolumeCurves() 5601{ 5602 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 5603 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 5604 mStreams[i].mVolumeCurve[j] = 5605 sVolumeProfiles[i][j]; 5606 } 5607 } 5608 5609 // Check availability of DRC on speaker path: if available, override some of the speaker curves 5610 if (mSpeakerDrcEnabled) { 5611 mStreams[AUDIO_STREAM_SYSTEM].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5612 sDefaultSystemVolumeCurveDrc; 5613 mStreams[AUDIO_STREAM_RING].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5614 sSpeakerSonificationVolumeCurveDrc; 5615 mStreams[AUDIO_STREAM_ALARM].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5616 sSpeakerSonificationVolumeCurveDrc; 5617 mStreams[AUDIO_STREAM_NOTIFICATION].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5618 sSpeakerSonificationVolumeCurveDrc; 5619 mStreams[AUDIO_STREAM_MUSIC].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5620 sSpeakerMediaVolumeCurveDrc; 5621 mStreams[AUDIO_STREAM_ACCESSIBILITY].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5622 sSpeakerMediaVolumeCurveDrc; 5623 } 5624} 5625 5626float AudioPolicyManager::computeVolume(audio_stream_type_t stream, 5627 int index, 5628 audio_io_handle_t output, 5629 audio_devices_t device) 5630{ 5631 float volume = 1.0; 5632 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 5633 StreamDescriptor &streamDesc = mStreams[stream]; 5634 5635 if (device == AUDIO_DEVICE_NONE) { 5636 device = outputDesc->device(); 5637 } 5638 5639 volume = volIndexToAmpl(device, streamDesc, index); 5640 5641 // if a headset is connected, apply the following rules to ring tones and notifications 5642 // to avoid sound level bursts in user's ears: 5643 // - always attenuate ring tones and notifications volume by 6dB 5644 // - if music is playing, always limit the volume to current music volume, 5645 // with a minimum threshold at -36dB so that notification is always perceived. 5646 const routing_strategy stream_strategy = getStrategy(stream); 5647 if ((device & (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP | 5648 AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES | 5649 AUDIO_DEVICE_OUT_WIRED_HEADSET | 5650 AUDIO_DEVICE_OUT_WIRED_HEADPHONE)) && 5651 ((stream_strategy == STRATEGY_SONIFICATION) 5652 || (stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL) 5653 || (stream == AUDIO_STREAM_SYSTEM) 5654 || ((stream_strategy == STRATEGY_ENFORCED_AUDIBLE) && 5655 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_NONE))) && 5656 streamDesc.mCanBeMuted) { 5657 volume *= SONIFICATION_HEADSET_VOLUME_FACTOR; 5658 // when the phone is ringing we must consider that music could have been paused just before 5659 // by the music application and behave as if music was active if the last music track was 5660 // just stopped 5661 if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY) || 5662 mLimitRingtoneVolume) { 5663 audio_devices_t musicDevice = getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/); 5664 float musicVol = computeVolume(AUDIO_STREAM_MUSIC, 5665 mStreams[AUDIO_STREAM_MUSIC].getVolumeIndex(musicDevice), 5666 output, 5667 musicDevice); 5668 float minVol = (musicVol > SONIFICATION_HEADSET_VOLUME_MIN) ? 5669 musicVol : SONIFICATION_HEADSET_VOLUME_MIN; 5670 if (volume > minVol) { 5671 volume = minVol; 5672 ALOGV("computeVolume limiting volume to %f musicVol %f", minVol, musicVol); 5673 } 5674 } 5675 } 5676 5677 return volume; 5678} 5679 5680status_t AudioPolicyManager::checkAndSetVolume(audio_stream_type_t stream, 5681 int index, 5682 audio_io_handle_t output, 5683 audio_devices_t device, 5684 int delayMs, 5685 bool force) 5686{ 5687 5688 // do not change actual stream volume if the stream is muted 5689 if (mOutputs.valueFor(output)->mMuteCount[stream] != 0) { 5690 ALOGVV("checkAndSetVolume() stream %d muted count %d", 5691 stream, mOutputs.valueFor(output)->mMuteCount[stream]); 5692 return NO_ERROR; 5693 } 5694 5695 // do not change in call volume if bluetooth is connected and vice versa 5696 if ((stream == AUDIO_STREAM_VOICE_CALL && 5697 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO) || 5698 (stream == AUDIO_STREAM_BLUETOOTH_SCO && 5699 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] != AUDIO_POLICY_FORCE_BT_SCO)) { 5700 ALOGV("checkAndSetVolume() cannot set stream %d volume with force use = %d for comm", 5701 stream, mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]); 5702 return INVALID_OPERATION; 5703 } 5704 5705 float volume = computeVolume(stream, index, output, device); 5706 // unit gain if rerouting to external policy 5707 if (device == AUDIO_DEVICE_OUT_REMOTE_SUBMIX) { 5708 ssize_t index = mOutputs.indexOfKey(output); 5709 if (index >= 0) { 5710 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 5711 if (outputDesc->mPolicyMix != NULL) { 5712 ALOGV("max gain when rerouting for output=%d", output); 5713 volume = 1.0f; 5714 } 5715 } 5716 5717 } 5718 // We actually change the volume if: 5719 // - the float value returned by computeVolume() changed 5720 // - the force flag is set 5721 if (volume != mOutputs.valueFor(output)->mCurVolume[stream] || 5722 force) { 5723 mOutputs.valueFor(output)->mCurVolume[stream] = volume; 5724 ALOGVV("checkAndSetVolume() for output %d stream %d, volume %f, delay %d", output, stream, volume, delayMs); 5725 // Force VOICE_CALL to track BLUETOOTH_SCO stream volume when bluetooth audio is 5726 // enabled 5727 if (stream == AUDIO_STREAM_BLUETOOTH_SCO) { 5728 mpClientInterface->setStreamVolume(AUDIO_STREAM_VOICE_CALL, volume, output, delayMs); 5729 } 5730 mpClientInterface->setStreamVolume(stream, volume, output, delayMs); 5731 } 5732 5733 if (stream == AUDIO_STREAM_VOICE_CALL || 5734 stream == AUDIO_STREAM_BLUETOOTH_SCO) { 5735 float voiceVolume; 5736 // Force voice volume to max for bluetooth SCO as volume is managed by the headset 5737 if (stream == AUDIO_STREAM_VOICE_CALL) { 5738 voiceVolume = (float)index/(float)mStreams[stream].mIndexMax; 5739 } else { 5740 voiceVolume = 1.0; 5741 } 5742 5743 if (voiceVolume != mLastVoiceVolume && output == mPrimaryOutput) { 5744 mpClientInterface->setVoiceVolume(voiceVolume, delayMs); 5745 mLastVoiceVolume = voiceVolume; 5746 } 5747 } 5748 5749 return NO_ERROR; 5750} 5751 5752void AudioPolicyManager::applyStreamVolumes(audio_io_handle_t output, 5753 audio_devices_t device, 5754 int delayMs, 5755 bool force) 5756{ 5757 ALOGVV("applyStreamVolumes() for output %d and device %x", output, device); 5758 5759 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 5760 if (stream == AUDIO_STREAM_PATCH) { 5761 continue; 5762 } 5763 checkAndSetVolume((audio_stream_type_t)stream, 5764 mStreams[stream].getVolumeIndex(device), 5765 output, 5766 device, 5767 delayMs, 5768 force); 5769 } 5770} 5771 5772void AudioPolicyManager::setStrategyMute(routing_strategy strategy, 5773 bool on, 5774 audio_io_handle_t output, 5775 int delayMs, 5776 audio_devices_t device) 5777{ 5778 ALOGVV("setStrategyMute() strategy %d, mute %d, output %d", strategy, on, output); 5779 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 5780 if (stream == AUDIO_STREAM_PATCH) { 5781 continue; 5782 } 5783 if (getStrategy((audio_stream_type_t)stream) == strategy) { 5784 setStreamMute((audio_stream_type_t)stream, on, output, delayMs, device); 5785 } 5786 } 5787} 5788 5789void AudioPolicyManager::setStreamMute(audio_stream_type_t stream, 5790 bool on, 5791 audio_io_handle_t output, 5792 int delayMs, 5793 audio_devices_t device) 5794{ 5795 StreamDescriptor &streamDesc = mStreams[stream]; 5796 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 5797 if (device == AUDIO_DEVICE_NONE) { 5798 device = outputDesc->device(); 5799 } 5800 5801 ALOGVV("setStreamMute() stream %d, mute %d, output %d, mMuteCount %d device %04x", 5802 stream, on, output, outputDesc->mMuteCount[stream], device); 5803 5804 if (on) { 5805 if (outputDesc->mMuteCount[stream] == 0) { 5806 if (streamDesc.mCanBeMuted && 5807 ((stream != AUDIO_STREAM_ENFORCED_AUDIBLE) || 5808 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_NONE))) { 5809 checkAndSetVolume(stream, 0, output, device, delayMs); 5810 } 5811 } 5812 // increment mMuteCount after calling checkAndSetVolume() so that volume change is not ignored 5813 outputDesc->mMuteCount[stream]++; 5814 } else { 5815 if (outputDesc->mMuteCount[stream] == 0) { 5816 ALOGV("setStreamMute() unmuting non muted stream!"); 5817 return; 5818 } 5819 if (--outputDesc->mMuteCount[stream] == 0) { 5820 checkAndSetVolume(stream, 5821 streamDesc.getVolumeIndex(device), 5822 output, 5823 device, 5824 delayMs); 5825 } 5826 } 5827} 5828 5829void AudioPolicyManager::handleIncallSonification(audio_stream_type_t stream, 5830 bool starting, bool stateChange) 5831{ 5832 // if the stream pertains to sonification strategy and we are in call we must 5833 // mute the stream if it is low visibility. If it is high visibility, we must play a tone 5834 // in the device used for phone strategy and play the tone if the selected device does not 5835 // interfere with the device used for phone strategy 5836 // if stateChange is true, we are called from setPhoneState() and we must mute or unmute as 5837 // many times as there are active tracks on the output 5838 const routing_strategy stream_strategy = getStrategy(stream); 5839 if ((stream_strategy == STRATEGY_SONIFICATION) || 5840 ((stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL))) { 5841 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 5842 ALOGV("handleIncallSonification() stream %d starting %d device %x stateChange %d", 5843 stream, starting, outputDesc->mDevice, stateChange); 5844 if (outputDesc->mRefCount[stream]) { 5845 int muteCount = 1; 5846 if (stateChange) { 5847 muteCount = outputDesc->mRefCount[stream]; 5848 } 5849 if (audio_is_low_visibility(stream)) { 5850 ALOGV("handleIncallSonification() low visibility, muteCount %d", muteCount); 5851 for (int i = 0; i < muteCount; i++) { 5852 setStreamMute(stream, starting, mPrimaryOutput); 5853 } 5854 } else { 5855 ALOGV("handleIncallSonification() high visibility"); 5856 if (outputDesc->device() & 5857 getDeviceForStrategy(STRATEGY_PHONE, true /*fromCache*/)) { 5858 ALOGV("handleIncallSonification() high visibility muted, muteCount %d", muteCount); 5859 for (int i = 0; i < muteCount; i++) { 5860 setStreamMute(stream, starting, mPrimaryOutput); 5861 } 5862 } 5863 if (starting) { 5864 mpClientInterface->startTone(AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION, 5865 AUDIO_STREAM_VOICE_CALL); 5866 } else { 5867 mpClientInterface->stopTone(); 5868 } 5869 } 5870 } 5871 } 5872} 5873 5874bool AudioPolicyManager::isInCall() 5875{ 5876 return isStateInCall(mPhoneState); 5877} 5878 5879bool AudioPolicyManager::isStateInCall(int state) { 5880 return ((state == AUDIO_MODE_IN_CALL) || 5881 (state == AUDIO_MODE_IN_COMMUNICATION)); 5882} 5883 5884uint32_t AudioPolicyManager::getMaxEffectsCpuLoad() 5885{ 5886 return MAX_EFFECTS_CPU_LOAD; 5887} 5888 5889uint32_t AudioPolicyManager::getMaxEffectsMemory() 5890{ 5891 return MAX_EFFECTS_MEMORY; 5892} 5893 5894 5895// --- AudioOutputDescriptor class implementation 5896 5897AudioPolicyManager::AudioOutputDescriptor::AudioOutputDescriptor( 5898 const sp<IOProfile>& profile) 5899 : mId(0), mIoHandle(0), mLatency(0), 5900 mFlags((audio_output_flags_t)0), mDevice(AUDIO_DEVICE_NONE), mPolicyMix(NULL), 5901 mPatchHandle(0), 5902 mOutput1(0), mOutput2(0), mProfile(profile), mDirectOpenCount(0) 5903{ 5904 // clear usage count for all stream types 5905 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 5906 mRefCount[i] = 0; 5907 mCurVolume[i] = -1.0; 5908 mMuteCount[i] = 0; 5909 mStopTime[i] = 0; 5910 } 5911 for (int i = 0; i < NUM_STRATEGIES; i++) { 5912 mStrategyMutedByDevice[i] = false; 5913 } 5914 if (profile != NULL) { 5915 mFlags = (audio_output_flags_t)profile->mFlags; 5916 mSamplingRate = profile->pickSamplingRate(); 5917 mFormat = profile->pickFormat(); 5918 mChannelMask = profile->pickChannelMask(); 5919 if (profile->mGains.size() > 0) { 5920 profile->mGains[0]->getDefaultConfig(&mGain); 5921 } 5922 } 5923} 5924 5925audio_devices_t AudioPolicyManager::AudioOutputDescriptor::device() const 5926{ 5927 if (isDuplicated()) { 5928 return (audio_devices_t)(mOutput1->mDevice | mOutput2->mDevice); 5929 } else { 5930 return mDevice; 5931 } 5932} 5933 5934uint32_t AudioPolicyManager::AudioOutputDescriptor::latency() 5935{ 5936 if (isDuplicated()) { 5937 return (mOutput1->mLatency > mOutput2->mLatency) ? mOutput1->mLatency : mOutput2->mLatency; 5938 } else { 5939 return mLatency; 5940 } 5941} 5942 5943bool AudioPolicyManager::AudioOutputDescriptor::sharesHwModuleWith( 5944 const sp<AudioOutputDescriptor> outputDesc) 5945{ 5946 if (isDuplicated()) { 5947 return mOutput1->sharesHwModuleWith(outputDesc) || mOutput2->sharesHwModuleWith(outputDesc); 5948 } else if (outputDesc->isDuplicated()){ 5949 return sharesHwModuleWith(outputDesc->mOutput1) || sharesHwModuleWith(outputDesc->mOutput2); 5950 } else { 5951 return (mProfile->mModule == outputDesc->mProfile->mModule); 5952 } 5953} 5954 5955void AudioPolicyManager::AudioOutputDescriptor::changeRefCount(audio_stream_type_t stream, 5956 int delta) 5957{ 5958 // forward usage count change to attached outputs 5959 if (isDuplicated()) { 5960 mOutput1->changeRefCount(stream, delta); 5961 mOutput2->changeRefCount(stream, delta); 5962 } 5963 if ((delta + (int)mRefCount[stream]) < 0) { 5964 ALOGW("changeRefCount() invalid delta %d for stream %d, refCount %d", 5965 delta, stream, mRefCount[stream]); 5966 mRefCount[stream] = 0; 5967 return; 5968 } 5969 mRefCount[stream] += delta; 5970 ALOGV("changeRefCount() stream %d, count %d", stream, mRefCount[stream]); 5971} 5972 5973audio_devices_t AudioPolicyManager::AudioOutputDescriptor::supportedDevices() 5974{ 5975 if (isDuplicated()) { 5976 return (audio_devices_t)(mOutput1->supportedDevices() | mOutput2->supportedDevices()); 5977 } else { 5978 return mProfile->mSupportedDevices.types() ; 5979 } 5980} 5981 5982bool AudioPolicyManager::AudioOutputDescriptor::isActive(uint32_t inPastMs) const 5983{ 5984 return isStrategyActive(NUM_STRATEGIES, inPastMs); 5985} 5986 5987bool AudioPolicyManager::AudioOutputDescriptor::isStrategyActive(routing_strategy strategy, 5988 uint32_t inPastMs, 5989 nsecs_t sysTime) const 5990{ 5991 if ((sysTime == 0) && (inPastMs != 0)) { 5992 sysTime = systemTime(); 5993 } 5994 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 5995 if (i == AUDIO_STREAM_PATCH) { 5996 continue; 5997 } 5998 if (((getStrategy((audio_stream_type_t)i) == strategy) || 5999 (NUM_STRATEGIES == strategy)) && 6000 isStreamActive((audio_stream_type_t)i, inPastMs, sysTime)) { 6001 return true; 6002 } 6003 } 6004 return false; 6005} 6006 6007bool AudioPolicyManager::AudioOutputDescriptor::isStreamActive(audio_stream_type_t stream, 6008 uint32_t inPastMs, 6009 nsecs_t sysTime) const 6010{ 6011 if (mRefCount[stream] != 0) { 6012 return true; 6013 } 6014 if (inPastMs == 0) { 6015 return false; 6016 } 6017 if (sysTime == 0) { 6018 sysTime = systemTime(); 6019 } 6020 if (ns2ms(sysTime - mStopTime[stream]) < inPastMs) { 6021 return true; 6022 } 6023 return false; 6024} 6025 6026void AudioPolicyManager::AudioOutputDescriptor::toAudioPortConfig( 6027 struct audio_port_config *dstConfig, 6028 const struct audio_port_config *srcConfig) const 6029{ 6030 ALOG_ASSERT(!isDuplicated(), "toAudioPortConfig() called on duplicated output %d", mIoHandle); 6031 6032 dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK| 6033 AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN; 6034 if (srcConfig != NULL) { 6035 dstConfig->config_mask |= srcConfig->config_mask; 6036 } 6037 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 6038 6039 dstConfig->id = mId; 6040 dstConfig->role = AUDIO_PORT_ROLE_SOURCE; 6041 dstConfig->type = AUDIO_PORT_TYPE_MIX; 6042 dstConfig->ext.mix.hw_module = mProfile->mModule->mHandle; 6043 dstConfig->ext.mix.handle = mIoHandle; 6044 dstConfig->ext.mix.usecase.stream = AUDIO_STREAM_DEFAULT; 6045} 6046 6047void AudioPolicyManager::AudioOutputDescriptor::toAudioPort( 6048 struct audio_port *port) const 6049{ 6050 ALOG_ASSERT(!isDuplicated(), "toAudioPort() called on duplicated output %d", mIoHandle); 6051 mProfile->toAudioPort(port); 6052 port->id = mId; 6053 toAudioPortConfig(&port->active_config); 6054 port->ext.mix.hw_module = mProfile->mModule->mHandle; 6055 port->ext.mix.handle = mIoHandle; 6056 port->ext.mix.latency_class = 6057 mFlags & AUDIO_OUTPUT_FLAG_FAST ? AUDIO_LATENCY_LOW : AUDIO_LATENCY_NORMAL; 6058} 6059 6060status_t AudioPolicyManager::AudioOutputDescriptor::dump(int fd) 6061{ 6062 const size_t SIZE = 256; 6063 char buffer[SIZE]; 6064 String8 result; 6065 6066 snprintf(buffer, SIZE, " ID: %d\n", mId); 6067 result.append(buffer); 6068 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 6069 result.append(buffer); 6070 snprintf(buffer, SIZE, " Format: %08x\n", mFormat); 6071 result.append(buffer); 6072 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 6073 result.append(buffer); 6074 snprintf(buffer, SIZE, " Latency: %d\n", mLatency); 6075 result.append(buffer); 6076 snprintf(buffer, SIZE, " Flags %08x\n", mFlags); 6077 result.append(buffer); 6078 snprintf(buffer, SIZE, " Devices %08x\n", device()); 6079 result.append(buffer); 6080 snprintf(buffer, SIZE, " Stream volume refCount muteCount\n"); 6081 result.append(buffer); 6082 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 6083 snprintf(buffer, SIZE, " %02d %.03f %02d %02d\n", 6084 i, mCurVolume[i], mRefCount[i], mMuteCount[i]); 6085 result.append(buffer); 6086 } 6087 write(fd, result.string(), result.size()); 6088 6089 return NO_ERROR; 6090} 6091 6092// --- AudioInputDescriptor class implementation 6093 6094AudioPolicyManager::AudioInputDescriptor::AudioInputDescriptor(const sp<IOProfile>& profile) 6095 : mId(0), mIoHandle(0), 6096 mDevice(AUDIO_DEVICE_NONE), mPolicyMix(NULL), mPatchHandle(0), mRefCount(0), 6097 mInputSource(AUDIO_SOURCE_DEFAULT), mProfile(profile), mIsSoundTrigger(false) 6098{ 6099 if (profile != NULL) { 6100 mSamplingRate = profile->pickSamplingRate(); 6101 mFormat = profile->pickFormat(); 6102 mChannelMask = profile->pickChannelMask(); 6103 if (profile->mGains.size() > 0) { 6104 profile->mGains[0]->getDefaultConfig(&mGain); 6105 } 6106 } 6107} 6108 6109void AudioPolicyManager::AudioInputDescriptor::toAudioPortConfig( 6110 struct audio_port_config *dstConfig, 6111 const struct audio_port_config *srcConfig) const 6112{ 6113 ALOG_ASSERT(mProfile != 0, 6114 "toAudioPortConfig() called on input with null profile %d", mIoHandle); 6115 dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK| 6116 AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN; 6117 if (srcConfig != NULL) { 6118 dstConfig->config_mask |= srcConfig->config_mask; 6119 } 6120 6121 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 6122 6123 dstConfig->id = mId; 6124 dstConfig->role = AUDIO_PORT_ROLE_SINK; 6125 dstConfig->type = AUDIO_PORT_TYPE_MIX; 6126 dstConfig->ext.mix.hw_module = mProfile->mModule->mHandle; 6127 dstConfig->ext.mix.handle = mIoHandle; 6128 dstConfig->ext.mix.usecase.source = mInputSource; 6129} 6130 6131void AudioPolicyManager::AudioInputDescriptor::toAudioPort( 6132 struct audio_port *port) const 6133{ 6134 ALOG_ASSERT(mProfile != 0, "toAudioPort() called on input with null profile %d", mIoHandle); 6135 6136 mProfile->toAudioPort(port); 6137 port->id = mId; 6138 toAudioPortConfig(&port->active_config); 6139 port->ext.mix.hw_module = mProfile->mModule->mHandle; 6140 port->ext.mix.handle = mIoHandle; 6141 port->ext.mix.latency_class = AUDIO_LATENCY_NORMAL; 6142} 6143 6144status_t AudioPolicyManager::AudioInputDescriptor::dump(int fd) 6145{ 6146 const size_t SIZE = 256; 6147 char buffer[SIZE]; 6148 String8 result; 6149 6150 snprintf(buffer, SIZE, " ID: %d\n", mId); 6151 result.append(buffer); 6152 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 6153 result.append(buffer); 6154 snprintf(buffer, SIZE, " Format: %d\n", mFormat); 6155 result.append(buffer); 6156 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 6157 result.append(buffer); 6158 snprintf(buffer, SIZE, " Devices %08x\n", mDevice); 6159 result.append(buffer); 6160 snprintf(buffer, SIZE, " Ref Count %d\n", mRefCount); 6161 result.append(buffer); 6162 snprintf(buffer, SIZE, " Open Ref Count %d\n", mOpenRefCount); 6163 result.append(buffer); 6164 6165 write(fd, result.string(), result.size()); 6166 6167 return NO_ERROR; 6168} 6169 6170// --- StreamDescriptor class implementation 6171 6172AudioPolicyManager::StreamDescriptor::StreamDescriptor() 6173 : mIndexMin(0), mIndexMax(1), mCanBeMuted(true) 6174{ 6175 mIndexCur.add(AUDIO_DEVICE_OUT_DEFAULT, 0); 6176} 6177 6178int AudioPolicyManager::StreamDescriptor::getVolumeIndex(audio_devices_t device) 6179{ 6180 device = AudioPolicyManager::getDeviceForVolume(device); 6181 // there is always a valid entry for AUDIO_DEVICE_OUT_DEFAULT 6182 if (mIndexCur.indexOfKey(device) < 0) { 6183 device = AUDIO_DEVICE_OUT_DEFAULT; 6184 } 6185 return mIndexCur.valueFor(device); 6186} 6187 6188void AudioPolicyManager::StreamDescriptor::dump(int fd) 6189{ 6190 const size_t SIZE = 256; 6191 char buffer[SIZE]; 6192 String8 result; 6193 6194 snprintf(buffer, SIZE, "%s %02d %02d ", 6195 mCanBeMuted ? "true " : "false", mIndexMin, mIndexMax); 6196 result.append(buffer); 6197 for (size_t i = 0; i < mIndexCur.size(); i++) { 6198 snprintf(buffer, SIZE, "%04x : %02d, ", 6199 mIndexCur.keyAt(i), 6200 mIndexCur.valueAt(i)); 6201 result.append(buffer); 6202 } 6203 result.append("\n"); 6204 6205 write(fd, result.string(), result.size()); 6206} 6207 6208// --- EffectDescriptor class implementation 6209 6210status_t AudioPolicyManager::EffectDescriptor::dump(int fd) 6211{ 6212 const size_t SIZE = 256; 6213 char buffer[SIZE]; 6214 String8 result; 6215 6216 snprintf(buffer, SIZE, " I/O: %d\n", mIo); 6217 result.append(buffer); 6218 snprintf(buffer, SIZE, " Strategy: %d\n", mStrategy); 6219 result.append(buffer); 6220 snprintf(buffer, SIZE, " Session: %d\n", mSession); 6221 result.append(buffer); 6222 snprintf(buffer, SIZE, " Name: %s\n", mDesc.name); 6223 result.append(buffer); 6224 snprintf(buffer, SIZE, " %s\n", mEnabled ? "Enabled" : "Disabled"); 6225 result.append(buffer); 6226 write(fd, result.string(), result.size()); 6227 6228 return NO_ERROR; 6229} 6230 6231// --- HwModule class implementation 6232 6233AudioPolicyManager::HwModule::HwModule(const char *name) 6234 : mName(strndup(name, AUDIO_HARDWARE_MODULE_ID_MAX_LEN)), 6235 mHalVersion(AUDIO_DEVICE_API_VERSION_MIN), mHandle(0) 6236{ 6237} 6238 6239AudioPolicyManager::HwModule::~HwModule() 6240{ 6241 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 6242 mOutputProfiles[i]->mSupportedDevices.clear(); 6243 } 6244 for (size_t i = 0; i < mInputProfiles.size(); i++) { 6245 mInputProfiles[i]->mSupportedDevices.clear(); 6246 } 6247 free((void *)mName); 6248} 6249 6250status_t AudioPolicyManager::HwModule::loadInput(cnode *root) 6251{ 6252 cnode *node = root->first_child; 6253 6254 sp<IOProfile> profile = new IOProfile(String8(root->name), AUDIO_PORT_ROLE_SINK, this); 6255 6256 while (node) { 6257 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) { 6258 profile->loadSamplingRates((char *)node->value); 6259 } else if (strcmp(node->name, FORMATS_TAG) == 0) { 6260 profile->loadFormats((char *)node->value); 6261 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 6262 profile->loadInChannels((char *)node->value); 6263 } else if (strcmp(node->name, DEVICES_TAG) == 0) { 6264 profile->mSupportedDevices.loadDevicesFromName((char *)node->value, 6265 mDeclaredDevices); 6266 } else if (strcmp(node->name, FLAGS_TAG) == 0) { 6267 profile->mFlags = parseInputFlagNames((char *)node->value); 6268 } else if (strcmp(node->name, GAINS_TAG) == 0) { 6269 profile->loadGains(node); 6270 } 6271 node = node->next; 6272 } 6273 ALOGW_IF(profile->mSupportedDevices.isEmpty(), 6274 "loadInput() invalid supported devices"); 6275 ALOGW_IF(profile->mChannelMasks.size() == 0, 6276 "loadInput() invalid supported channel masks"); 6277 ALOGW_IF(profile->mSamplingRates.size() == 0, 6278 "loadInput() invalid supported sampling rates"); 6279 ALOGW_IF(profile->mFormats.size() == 0, 6280 "loadInput() invalid supported formats"); 6281 if (!profile->mSupportedDevices.isEmpty() && 6282 (profile->mChannelMasks.size() != 0) && 6283 (profile->mSamplingRates.size() != 0) && 6284 (profile->mFormats.size() != 0)) { 6285 6286 ALOGV("loadInput() adding input Supported Devices %04x", 6287 profile->mSupportedDevices.types()); 6288 6289 mInputProfiles.add(profile); 6290 return NO_ERROR; 6291 } else { 6292 return BAD_VALUE; 6293 } 6294} 6295 6296status_t AudioPolicyManager::HwModule::loadOutput(cnode *root) 6297{ 6298 cnode *node = root->first_child; 6299 6300 sp<IOProfile> profile = new IOProfile(String8(root->name), AUDIO_PORT_ROLE_SOURCE, this); 6301 6302 while (node) { 6303 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) { 6304 profile->loadSamplingRates((char *)node->value); 6305 } else if (strcmp(node->name, FORMATS_TAG) == 0) { 6306 profile->loadFormats((char *)node->value); 6307 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 6308 profile->loadOutChannels((char *)node->value); 6309 } else if (strcmp(node->name, DEVICES_TAG) == 0) { 6310 profile->mSupportedDevices.loadDevicesFromName((char *)node->value, 6311 mDeclaredDevices); 6312 } else if (strcmp(node->name, FLAGS_TAG) == 0) { 6313 profile->mFlags = parseOutputFlagNames((char *)node->value); 6314 } else if (strcmp(node->name, GAINS_TAG) == 0) { 6315 profile->loadGains(node); 6316 } 6317 node = node->next; 6318 } 6319 ALOGW_IF(profile->mSupportedDevices.isEmpty(), 6320 "loadOutput() invalid supported devices"); 6321 ALOGW_IF(profile->mChannelMasks.size() == 0, 6322 "loadOutput() invalid supported channel masks"); 6323 ALOGW_IF(profile->mSamplingRates.size() == 0, 6324 "loadOutput() invalid supported sampling rates"); 6325 ALOGW_IF(profile->mFormats.size() == 0, 6326 "loadOutput() invalid supported formats"); 6327 if (!profile->mSupportedDevices.isEmpty() && 6328 (profile->mChannelMasks.size() != 0) && 6329 (profile->mSamplingRates.size() != 0) && 6330 (profile->mFormats.size() != 0)) { 6331 6332 ALOGV("loadOutput() adding output Supported Devices %04x, mFlags %04x", 6333 profile->mSupportedDevices.types(), profile->mFlags); 6334 6335 mOutputProfiles.add(profile); 6336 return NO_ERROR; 6337 } else { 6338 return BAD_VALUE; 6339 } 6340} 6341 6342status_t AudioPolicyManager::HwModule::loadDevice(cnode *root) 6343{ 6344 cnode *node = root->first_child; 6345 6346 audio_devices_t type = AUDIO_DEVICE_NONE; 6347 while (node) { 6348 if (strcmp(node->name, DEVICE_TYPE) == 0) { 6349 type = parseDeviceNames((char *)node->value); 6350 break; 6351 } 6352 node = node->next; 6353 } 6354 if (type == AUDIO_DEVICE_NONE || 6355 (!audio_is_input_device(type) && !audio_is_output_device(type))) { 6356 ALOGW("loadDevice() bad type %08x", type); 6357 return BAD_VALUE; 6358 } 6359 sp<DeviceDescriptor> deviceDesc = new DeviceDescriptor(String8(root->name), type); 6360 deviceDesc->mModule = this; 6361 6362 node = root->first_child; 6363 while (node) { 6364 if (strcmp(node->name, DEVICE_ADDRESS) == 0) { 6365 deviceDesc->mAddress = String8((char *)node->value); 6366 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 6367 if (audio_is_input_device(type)) { 6368 deviceDesc->loadInChannels((char *)node->value); 6369 } else { 6370 deviceDesc->loadOutChannels((char *)node->value); 6371 } 6372 } else if (strcmp(node->name, GAINS_TAG) == 0) { 6373 deviceDesc->loadGains(node); 6374 } 6375 node = node->next; 6376 } 6377 6378 ALOGV("loadDevice() adding device name %s type %08x address %s", 6379 deviceDesc->mName.string(), type, deviceDesc->mAddress.string()); 6380 6381 mDeclaredDevices.add(deviceDesc); 6382 6383 return NO_ERROR; 6384} 6385 6386status_t AudioPolicyManager::HwModule::addOutputProfile(String8 name, const audio_config_t *config, 6387 audio_devices_t device, String8 address) 6388{ 6389 sp<IOProfile> profile = new IOProfile(name, AUDIO_PORT_ROLE_SOURCE, this); 6390 6391 profile->mSamplingRates.add(config->sample_rate); 6392 profile->mChannelMasks.add(config->channel_mask); 6393 profile->mFormats.add(config->format); 6394 6395 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 6396 devDesc->mAddress = address; 6397 profile->mSupportedDevices.add(devDesc); 6398 6399 mOutputProfiles.add(profile); 6400 6401 return NO_ERROR; 6402} 6403 6404status_t AudioPolicyManager::HwModule::removeOutputProfile(String8 name) 6405{ 6406 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 6407 if (mOutputProfiles[i]->mName == name) { 6408 mOutputProfiles.removeAt(i); 6409 break; 6410 } 6411 } 6412 6413 return NO_ERROR; 6414} 6415 6416status_t AudioPolicyManager::HwModule::addInputProfile(String8 name, const audio_config_t *config, 6417 audio_devices_t device, String8 address) 6418{ 6419 sp<IOProfile> profile = new IOProfile(name, AUDIO_PORT_ROLE_SINK, this); 6420 6421 profile->mSamplingRates.add(config->sample_rate); 6422 profile->mChannelMasks.add(config->channel_mask); 6423 profile->mFormats.add(config->format); 6424 6425 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 6426 devDesc->mAddress = address; 6427 profile->mSupportedDevices.add(devDesc); 6428 6429 ALOGV("addInputProfile() name %s rate %d mask 0x08", name.string(), config->sample_rate, config->channel_mask); 6430 6431 mInputProfiles.add(profile); 6432 6433 return NO_ERROR; 6434} 6435 6436status_t AudioPolicyManager::HwModule::removeInputProfile(String8 name) 6437{ 6438 for (size_t i = 0; i < mInputProfiles.size(); i++) { 6439 if (mInputProfiles[i]->mName == name) { 6440 mInputProfiles.removeAt(i); 6441 break; 6442 } 6443 } 6444 6445 return NO_ERROR; 6446} 6447 6448 6449void AudioPolicyManager::HwModule::dump(int fd) 6450{ 6451 const size_t SIZE = 256; 6452 char buffer[SIZE]; 6453 String8 result; 6454 6455 snprintf(buffer, SIZE, " - name: %s\n", mName); 6456 result.append(buffer); 6457 snprintf(buffer, SIZE, " - handle: %d\n", mHandle); 6458 result.append(buffer); 6459 snprintf(buffer, SIZE, " - version: %u.%u\n", mHalVersion >> 8, mHalVersion & 0xFF); 6460 result.append(buffer); 6461 write(fd, result.string(), result.size()); 6462 if (mOutputProfiles.size()) { 6463 write(fd, " - outputs:\n", strlen(" - outputs:\n")); 6464 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 6465 snprintf(buffer, SIZE, " output %zu:\n", i); 6466 write(fd, buffer, strlen(buffer)); 6467 mOutputProfiles[i]->dump(fd); 6468 } 6469 } 6470 if (mInputProfiles.size()) { 6471 write(fd, " - inputs:\n", strlen(" - inputs:\n")); 6472 for (size_t i = 0; i < mInputProfiles.size(); i++) { 6473 snprintf(buffer, SIZE, " input %zu:\n", i); 6474 write(fd, buffer, strlen(buffer)); 6475 mInputProfiles[i]->dump(fd); 6476 } 6477 } 6478 if (mDeclaredDevices.size()) { 6479 write(fd, " - devices:\n", strlen(" - devices:\n")); 6480 for (size_t i = 0; i < mDeclaredDevices.size(); i++) { 6481 mDeclaredDevices[i]->dump(fd, 4, i); 6482 } 6483 } 6484} 6485 6486// --- AudioPort class implementation 6487 6488 6489AudioPolicyManager::AudioPort::AudioPort(const String8& name, audio_port_type_t type, 6490 audio_port_role_t role, const sp<HwModule>& module) : 6491 mName(name), mType(type), mRole(role), mModule(module), mFlags(0) 6492{ 6493 mUseInChannelMask = ((type == AUDIO_PORT_TYPE_DEVICE) && (role == AUDIO_PORT_ROLE_SOURCE)) || 6494 ((type == AUDIO_PORT_TYPE_MIX) && (role == AUDIO_PORT_ROLE_SINK)); 6495} 6496 6497void AudioPolicyManager::AudioPort::toAudioPort(struct audio_port *port) const 6498{ 6499 port->role = mRole; 6500 port->type = mType; 6501 unsigned int i; 6502 for (i = 0; i < mSamplingRates.size() && i < AUDIO_PORT_MAX_SAMPLING_RATES; i++) { 6503 if (mSamplingRates[i] != 0) { 6504 port->sample_rates[i] = mSamplingRates[i]; 6505 } 6506 } 6507 port->num_sample_rates = i; 6508 for (i = 0; i < mChannelMasks.size() && i < AUDIO_PORT_MAX_CHANNEL_MASKS; i++) { 6509 if (mChannelMasks[i] != 0) { 6510 port->channel_masks[i] = mChannelMasks[i]; 6511 } 6512 } 6513 port->num_channel_masks = i; 6514 for (i = 0; i < mFormats.size() && i < AUDIO_PORT_MAX_FORMATS; i++) { 6515 if (mFormats[i] != 0) { 6516 port->formats[i] = mFormats[i]; 6517 } 6518 } 6519 port->num_formats = i; 6520 6521 ALOGV("AudioPort::toAudioPort() num gains %zu", mGains.size()); 6522 6523 for (i = 0; i < mGains.size() && i < AUDIO_PORT_MAX_GAINS; i++) { 6524 port->gains[i] = mGains[i]->mGain; 6525 } 6526 port->num_gains = i; 6527} 6528 6529void AudioPolicyManager::AudioPort::importAudioPort(const sp<AudioPort> port) { 6530 for (size_t k = 0 ; k < port->mSamplingRates.size() ; k++) { 6531 const uint32_t rate = port->mSamplingRates.itemAt(k); 6532 if (rate != 0) { // skip "dynamic" rates 6533 bool hasRate = false; 6534 for (size_t l = 0 ; l < mSamplingRates.size() ; l++) { 6535 if (rate == mSamplingRates.itemAt(l)) { 6536 hasRate = true; 6537 break; 6538 } 6539 } 6540 if (!hasRate) { // never import a sampling rate twice 6541 mSamplingRates.add(rate); 6542 } 6543 } 6544 } 6545 for (size_t k = 0 ; k < port->mChannelMasks.size() ; k++) { 6546 const audio_channel_mask_t mask = port->mChannelMasks.itemAt(k); 6547 if (mask != 0) { // skip "dynamic" masks 6548 bool hasMask = false; 6549 for (size_t l = 0 ; l < mChannelMasks.size() ; l++) { 6550 if (mask == mChannelMasks.itemAt(l)) { 6551 hasMask = true; 6552 break; 6553 } 6554 } 6555 if (!hasMask) { // never import a channel mask twice 6556 mChannelMasks.add(mask); 6557 } 6558 } 6559 } 6560 for (size_t k = 0 ; k < port->mFormats.size() ; k++) { 6561 const audio_format_t format = port->mFormats.itemAt(k); 6562 if (format != 0) { // skip "dynamic" formats 6563 bool hasFormat = false; 6564 for (size_t l = 0 ; l < mFormats.size() ; l++) { 6565 if (format == mFormats.itemAt(l)) { 6566 hasFormat = true; 6567 break; 6568 } 6569 } 6570 if (!hasFormat) { // never import a channel mask twice 6571 mFormats.add(format); 6572 } 6573 } 6574 } 6575 for (size_t k = 0 ; k < port->mGains.size() ; k++) { 6576 sp<AudioGain> gain = port->mGains.itemAt(k); 6577 if (gain != 0) { 6578 bool hasGain = false; 6579 for (size_t l = 0 ; l < mGains.size() ; l++) { 6580 if (gain == mGains.itemAt(l)) { 6581 hasGain = true; 6582 break; 6583 } 6584 } 6585 if (!hasGain) { // never import a gain twice 6586 mGains.add(gain); 6587 } 6588 } 6589 } 6590} 6591 6592void AudioPolicyManager::AudioPort::clearCapabilities() { 6593 mChannelMasks.clear(); 6594 mFormats.clear(); 6595 mSamplingRates.clear(); 6596 mGains.clear(); 6597} 6598 6599void AudioPolicyManager::AudioPort::loadSamplingRates(char *name) 6600{ 6601 char *str = strtok(name, "|"); 6602 6603 // by convention, "0' in the first entry in mSamplingRates indicates the supported sampling 6604 // rates should be read from the output stream after it is opened for the first time 6605 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 6606 mSamplingRates.add(0); 6607 return; 6608 } 6609 6610 while (str != NULL) { 6611 uint32_t rate = atoi(str); 6612 if (rate != 0) { 6613 ALOGV("loadSamplingRates() adding rate %d", rate); 6614 mSamplingRates.add(rate); 6615 } 6616 str = strtok(NULL, "|"); 6617 } 6618} 6619 6620void AudioPolicyManager::AudioPort::loadFormats(char *name) 6621{ 6622 char *str = strtok(name, "|"); 6623 6624 // by convention, "0' in the first entry in mFormats indicates the supported formats 6625 // should be read from the output stream after it is opened for the first time 6626 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 6627 mFormats.add(AUDIO_FORMAT_DEFAULT); 6628 return; 6629 } 6630 6631 while (str != NULL) { 6632 audio_format_t format = (audio_format_t)stringToEnum(sFormatNameToEnumTable, 6633 ARRAY_SIZE(sFormatNameToEnumTable), 6634 str); 6635 if (format != AUDIO_FORMAT_DEFAULT) { 6636 mFormats.add(format); 6637 } 6638 str = strtok(NULL, "|"); 6639 } 6640} 6641 6642void AudioPolicyManager::AudioPort::loadInChannels(char *name) 6643{ 6644 const char *str = strtok(name, "|"); 6645 6646 ALOGV("loadInChannels() %s", name); 6647 6648 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 6649 mChannelMasks.add(0); 6650 return; 6651 } 6652 6653 while (str != NULL) { 6654 audio_channel_mask_t channelMask = 6655 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable, 6656 ARRAY_SIZE(sInChannelsNameToEnumTable), 6657 str); 6658 if (channelMask != 0) { 6659 ALOGV("loadInChannels() adding channelMask %04x", channelMask); 6660 mChannelMasks.add(channelMask); 6661 } 6662 str = strtok(NULL, "|"); 6663 } 6664} 6665 6666void AudioPolicyManager::AudioPort::loadOutChannels(char *name) 6667{ 6668 const char *str = strtok(name, "|"); 6669 6670 ALOGV("loadOutChannels() %s", name); 6671 6672 // by convention, "0' in the first entry in mChannelMasks indicates the supported channel 6673 // masks should be read from the output stream after it is opened for the first time 6674 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 6675 mChannelMasks.add(0); 6676 return; 6677 } 6678 6679 while (str != NULL) { 6680 audio_channel_mask_t channelMask = 6681 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable, 6682 ARRAY_SIZE(sOutChannelsNameToEnumTable), 6683 str); 6684 if (channelMask != 0) { 6685 mChannelMasks.add(channelMask); 6686 } 6687 str = strtok(NULL, "|"); 6688 } 6689 return; 6690} 6691 6692audio_gain_mode_t AudioPolicyManager::AudioPort::loadGainMode(char *name) 6693{ 6694 const char *str = strtok(name, "|"); 6695 6696 ALOGV("loadGainMode() %s", name); 6697 audio_gain_mode_t mode = 0; 6698 while (str != NULL) { 6699 mode |= (audio_gain_mode_t)stringToEnum(sGainModeNameToEnumTable, 6700 ARRAY_SIZE(sGainModeNameToEnumTable), 6701 str); 6702 str = strtok(NULL, "|"); 6703 } 6704 return mode; 6705} 6706 6707void AudioPolicyManager::AudioPort::loadGain(cnode *root, int index) 6708{ 6709 cnode *node = root->first_child; 6710 6711 sp<AudioGain> gain = new AudioGain(index, mUseInChannelMask); 6712 6713 while (node) { 6714 if (strcmp(node->name, GAIN_MODE) == 0) { 6715 gain->mGain.mode = loadGainMode((char *)node->value); 6716 } else if (strcmp(node->name, GAIN_CHANNELS) == 0) { 6717 if (mUseInChannelMask) { 6718 gain->mGain.channel_mask = 6719 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable, 6720 ARRAY_SIZE(sInChannelsNameToEnumTable), 6721 (char *)node->value); 6722 } else { 6723 gain->mGain.channel_mask = 6724 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable, 6725 ARRAY_SIZE(sOutChannelsNameToEnumTable), 6726 (char *)node->value); 6727 } 6728 } else if (strcmp(node->name, GAIN_MIN_VALUE) == 0) { 6729 gain->mGain.min_value = atoi((char *)node->value); 6730 } else if (strcmp(node->name, GAIN_MAX_VALUE) == 0) { 6731 gain->mGain.max_value = atoi((char *)node->value); 6732 } else if (strcmp(node->name, GAIN_DEFAULT_VALUE) == 0) { 6733 gain->mGain.default_value = atoi((char *)node->value); 6734 } else if (strcmp(node->name, GAIN_STEP_VALUE) == 0) { 6735 gain->mGain.step_value = atoi((char *)node->value); 6736 } else if (strcmp(node->name, GAIN_MIN_RAMP_MS) == 0) { 6737 gain->mGain.min_ramp_ms = atoi((char *)node->value); 6738 } else if (strcmp(node->name, GAIN_MAX_RAMP_MS) == 0) { 6739 gain->mGain.max_ramp_ms = atoi((char *)node->value); 6740 } 6741 node = node->next; 6742 } 6743 6744 ALOGV("loadGain() adding new gain mode %08x channel mask %08x min mB %d max mB %d", 6745 gain->mGain.mode, gain->mGain.channel_mask, gain->mGain.min_value, gain->mGain.max_value); 6746 6747 if (gain->mGain.mode == 0) { 6748 return; 6749 } 6750 mGains.add(gain); 6751} 6752 6753void AudioPolicyManager::AudioPort::loadGains(cnode *root) 6754{ 6755 cnode *node = root->first_child; 6756 int index = 0; 6757 while (node) { 6758 ALOGV("loadGains() loading gain %s", node->name); 6759 loadGain(node, index++); 6760 node = node->next; 6761 } 6762} 6763 6764status_t AudioPolicyManager::AudioPort::checkExactSamplingRate(uint32_t samplingRate) const 6765{ 6766 if (mSamplingRates.isEmpty()) { 6767 return NO_ERROR; 6768 } 6769 6770 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 6771 if (mSamplingRates[i] == samplingRate) { 6772 return NO_ERROR; 6773 } 6774 } 6775 return BAD_VALUE; 6776} 6777 6778status_t AudioPolicyManager::AudioPort::checkCompatibleSamplingRate(uint32_t samplingRate, 6779 uint32_t *updatedSamplingRate) const 6780{ 6781 if (mSamplingRates.isEmpty()) { 6782 return NO_ERROR; 6783 } 6784 6785 // Search for the closest supported sampling rate that is above (preferred) 6786 // or below (acceptable) the desired sampling rate, within a permitted ratio. 6787 // The sampling rates do not need to be sorted in ascending order. 6788 ssize_t maxBelow = -1; 6789 ssize_t minAbove = -1; 6790 uint32_t candidate; 6791 for (size_t i = 0; i < mSamplingRates.size(); i++) { 6792 candidate = mSamplingRates[i]; 6793 if (candidate == samplingRate) { 6794 if (updatedSamplingRate != NULL) { 6795 *updatedSamplingRate = candidate; 6796 } 6797 return NO_ERROR; 6798 } 6799 // candidate < desired 6800 if (candidate < samplingRate) { 6801 if (maxBelow < 0 || candidate > mSamplingRates[maxBelow]) { 6802 maxBelow = i; 6803 } 6804 // candidate > desired 6805 } else { 6806 if (minAbove < 0 || candidate < mSamplingRates[minAbove]) { 6807 minAbove = i; 6808 } 6809 } 6810 } 6811 // This uses hard-coded knowledge about AudioFlinger resampling ratios. 6812 // TODO Move these assumptions out. 6813 static const uint32_t kMaxDownSampleRatio = 6; // beyond this aliasing occurs 6814 static const uint32_t kMaxUpSampleRatio = 256; // beyond this sample rate inaccuracies occur 6815 // due to approximation by an int32_t of the 6816 // phase increments 6817 // Prefer to down-sample from a higher sampling rate, as we get the desired frequency spectrum. 6818 if (minAbove >= 0) { 6819 candidate = mSamplingRates[minAbove]; 6820 if (candidate / kMaxDownSampleRatio <= samplingRate) { 6821 if (updatedSamplingRate != NULL) { 6822 *updatedSamplingRate = candidate; 6823 } 6824 return NO_ERROR; 6825 } 6826 } 6827 // But if we have to up-sample from a lower sampling rate, that's OK. 6828 if (maxBelow >= 0) { 6829 candidate = mSamplingRates[maxBelow]; 6830 if (candidate * kMaxUpSampleRatio >= samplingRate) { 6831 if (updatedSamplingRate != NULL) { 6832 *updatedSamplingRate = candidate; 6833 } 6834 return NO_ERROR; 6835 } 6836 } 6837 // leave updatedSamplingRate unmodified 6838 return BAD_VALUE; 6839} 6840 6841status_t AudioPolicyManager::AudioPort::checkExactChannelMask(audio_channel_mask_t channelMask) const 6842{ 6843 if (mChannelMasks.isEmpty()) { 6844 return NO_ERROR; 6845 } 6846 6847 for (size_t i = 0; i < mChannelMasks.size(); i++) { 6848 if (mChannelMasks[i] == channelMask) { 6849 return NO_ERROR; 6850 } 6851 } 6852 return BAD_VALUE; 6853} 6854 6855status_t AudioPolicyManager::AudioPort::checkCompatibleChannelMask(audio_channel_mask_t channelMask) 6856 const 6857{ 6858 if (mChannelMasks.isEmpty()) { 6859 return NO_ERROR; 6860 } 6861 6862 const bool isRecordThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SINK; 6863 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 6864 // FIXME Does not handle multi-channel automatic conversions yet 6865 audio_channel_mask_t supported = mChannelMasks[i]; 6866 if (supported == channelMask) { 6867 return NO_ERROR; 6868 } 6869 if (isRecordThread) { 6870 // This uses hard-coded knowledge that AudioFlinger can silently down-mix and up-mix. 6871 // FIXME Abstract this out to a table. 6872 if (((supported == AUDIO_CHANNEL_IN_FRONT_BACK || supported == AUDIO_CHANNEL_IN_STEREO) 6873 && channelMask == AUDIO_CHANNEL_IN_MONO) || 6874 (supported == AUDIO_CHANNEL_IN_MONO && (channelMask == AUDIO_CHANNEL_IN_FRONT_BACK 6875 || channelMask == AUDIO_CHANNEL_IN_STEREO))) { 6876 return NO_ERROR; 6877 } 6878 } 6879 } 6880 return BAD_VALUE; 6881} 6882 6883status_t AudioPolicyManager::AudioPort::checkFormat(audio_format_t format) const 6884{ 6885 if (mFormats.isEmpty()) { 6886 return NO_ERROR; 6887 } 6888 6889 for (size_t i = 0; i < mFormats.size(); i ++) { 6890 if (mFormats[i] == format) { 6891 return NO_ERROR; 6892 } 6893 } 6894 return BAD_VALUE; 6895} 6896 6897 6898uint32_t AudioPolicyManager::AudioPort::pickSamplingRate() const 6899{ 6900 // special case for uninitialized dynamic profile 6901 if (mSamplingRates.size() == 1 && mSamplingRates[0] == 0) { 6902 return 0; 6903 } 6904 6905 // For direct outputs, pick minimum sampling rate: this helps ensuring that the 6906 // channel count / sampling rate combination chosen will be supported by the connected 6907 // sink 6908 if ((mType == AUDIO_PORT_TYPE_MIX) && (mRole == AUDIO_PORT_ROLE_SOURCE) && 6909 (mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD))) { 6910 uint32_t samplingRate = UINT_MAX; 6911 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 6912 if ((mSamplingRates[i] < samplingRate) && (mSamplingRates[i] > 0)) { 6913 samplingRate = mSamplingRates[i]; 6914 } 6915 } 6916 return (samplingRate == UINT_MAX) ? 0 : samplingRate; 6917 } 6918 6919 uint32_t samplingRate = 0; 6920 uint32_t maxRate = MAX_MIXER_SAMPLING_RATE; 6921 6922 // For mixed output and inputs, use max mixer sampling rates. Do not 6923 // limit sampling rate otherwise 6924 if (mType != AUDIO_PORT_TYPE_MIX) { 6925 maxRate = UINT_MAX; 6926 } 6927 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 6928 if ((mSamplingRates[i] > samplingRate) && (mSamplingRates[i] <= maxRate)) { 6929 samplingRate = mSamplingRates[i]; 6930 } 6931 } 6932 return samplingRate; 6933} 6934 6935audio_channel_mask_t AudioPolicyManager::AudioPort::pickChannelMask() const 6936{ 6937 // special case for uninitialized dynamic profile 6938 if (mChannelMasks.size() == 1 && mChannelMasks[0] == 0) { 6939 return AUDIO_CHANNEL_NONE; 6940 } 6941 audio_channel_mask_t channelMask = AUDIO_CHANNEL_NONE; 6942 6943 // For direct outputs, pick minimum channel count: this helps ensuring that the 6944 // channel count / sampling rate combination chosen will be supported by the connected 6945 // sink 6946 if ((mType == AUDIO_PORT_TYPE_MIX) && (mRole == AUDIO_PORT_ROLE_SOURCE) && 6947 (mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD))) { 6948 uint32_t channelCount = UINT_MAX; 6949 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 6950 uint32_t cnlCount; 6951 if (mUseInChannelMask) { 6952 cnlCount = audio_channel_count_from_in_mask(mChannelMasks[i]); 6953 } else { 6954 cnlCount = audio_channel_count_from_out_mask(mChannelMasks[i]); 6955 } 6956 if ((cnlCount < channelCount) && (cnlCount > 0)) { 6957 channelMask = mChannelMasks[i]; 6958 channelCount = cnlCount; 6959 } 6960 } 6961 return channelMask; 6962 } 6963 6964 uint32_t channelCount = 0; 6965 uint32_t maxCount = MAX_MIXER_CHANNEL_COUNT; 6966 6967 // For mixed output and inputs, use max mixer channel count. Do not 6968 // limit channel count otherwise 6969 if (mType != AUDIO_PORT_TYPE_MIX) { 6970 maxCount = UINT_MAX; 6971 } 6972 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 6973 uint32_t cnlCount; 6974 if (mUseInChannelMask) { 6975 cnlCount = audio_channel_count_from_in_mask(mChannelMasks[i]); 6976 } else { 6977 cnlCount = audio_channel_count_from_out_mask(mChannelMasks[i]); 6978 } 6979 if ((cnlCount > channelCount) && (cnlCount <= maxCount)) { 6980 channelMask = mChannelMasks[i]; 6981 channelCount = cnlCount; 6982 } 6983 } 6984 return channelMask; 6985} 6986 6987/* format in order of increasing preference */ 6988const audio_format_t AudioPolicyManager::AudioPort::sPcmFormatCompareTable[] = { 6989 AUDIO_FORMAT_DEFAULT, 6990 AUDIO_FORMAT_PCM_16_BIT, 6991 AUDIO_FORMAT_PCM_8_24_BIT, 6992 AUDIO_FORMAT_PCM_24_BIT_PACKED, 6993 AUDIO_FORMAT_PCM_32_BIT, 6994 AUDIO_FORMAT_PCM_FLOAT, 6995}; 6996 6997int AudioPolicyManager::AudioPort::compareFormats(audio_format_t format1, 6998 audio_format_t format2) 6999{ 7000 // NOTE: AUDIO_FORMAT_INVALID is also considered not PCM and will be compared equal to any 7001 // compressed format and better than any PCM format. This is by design of pickFormat() 7002 if (!audio_is_linear_pcm(format1)) { 7003 if (!audio_is_linear_pcm(format2)) { 7004 return 0; 7005 } 7006 return 1; 7007 } 7008 if (!audio_is_linear_pcm(format2)) { 7009 return -1; 7010 } 7011 7012 int index1 = -1, index2 = -1; 7013 for (size_t i = 0; 7014 (i < ARRAY_SIZE(sPcmFormatCompareTable)) && ((index1 == -1) || (index2 == -1)); 7015 i ++) { 7016 if (sPcmFormatCompareTable[i] == format1) { 7017 index1 = i; 7018 } 7019 if (sPcmFormatCompareTable[i] == format2) { 7020 index2 = i; 7021 } 7022 } 7023 // format1 not found => index1 < 0 => format2 > format1 7024 // format2 not found => index2 < 0 => format2 < format1 7025 return index1 - index2; 7026} 7027 7028audio_format_t AudioPolicyManager::AudioPort::pickFormat() const 7029{ 7030 // special case for uninitialized dynamic profile 7031 if (mFormats.size() == 1 && mFormats[0] == 0) { 7032 return AUDIO_FORMAT_DEFAULT; 7033 } 7034 7035 audio_format_t format = AUDIO_FORMAT_DEFAULT; 7036 audio_format_t bestFormat = 7037 AudioPolicyManager::AudioPort::sPcmFormatCompareTable[ 7038 ARRAY_SIZE(AudioPolicyManager::AudioPort::sPcmFormatCompareTable) - 1]; 7039 // For mixed output and inputs, use best mixer output format. Do not 7040 // limit format otherwise 7041 if ((mType != AUDIO_PORT_TYPE_MIX) || 7042 ((mRole == AUDIO_PORT_ROLE_SOURCE) && 7043 (((mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)) != 0)))) { 7044 bestFormat = AUDIO_FORMAT_INVALID; 7045 } 7046 7047 for (size_t i = 0; i < mFormats.size(); i ++) { 7048 if ((compareFormats(mFormats[i], format) > 0) && 7049 (compareFormats(mFormats[i], bestFormat) <= 0)) { 7050 format = mFormats[i]; 7051 } 7052 } 7053 return format; 7054} 7055 7056status_t AudioPolicyManager::AudioPort::checkGain(const struct audio_gain_config *gainConfig, 7057 int index) const 7058{ 7059 if (index < 0 || (size_t)index >= mGains.size()) { 7060 return BAD_VALUE; 7061 } 7062 return mGains[index]->checkConfig(gainConfig); 7063} 7064 7065void AudioPolicyManager::AudioPort::dump(int fd, int spaces) const 7066{ 7067 const size_t SIZE = 256; 7068 char buffer[SIZE]; 7069 String8 result; 7070 7071 if (mName.size() != 0) { 7072 snprintf(buffer, SIZE, "%*s- name: %s\n", spaces, "", mName.string()); 7073 result.append(buffer); 7074 } 7075 7076 if (mSamplingRates.size() != 0) { 7077 snprintf(buffer, SIZE, "%*s- sampling rates: ", spaces, ""); 7078 result.append(buffer); 7079 for (size_t i = 0; i < mSamplingRates.size(); i++) { 7080 if (i == 0 && mSamplingRates[i] == 0) { 7081 snprintf(buffer, SIZE, "Dynamic"); 7082 } else { 7083 snprintf(buffer, SIZE, "%d", mSamplingRates[i]); 7084 } 7085 result.append(buffer); 7086 result.append(i == (mSamplingRates.size() - 1) ? "" : ", "); 7087 } 7088 result.append("\n"); 7089 } 7090 7091 if (mChannelMasks.size() != 0) { 7092 snprintf(buffer, SIZE, "%*s- channel masks: ", spaces, ""); 7093 result.append(buffer); 7094 for (size_t i = 0; i < mChannelMasks.size(); i++) { 7095 ALOGV("AudioPort::dump mChannelMasks %zu %08x", i, mChannelMasks[i]); 7096 7097 if (i == 0 && mChannelMasks[i] == 0) { 7098 snprintf(buffer, SIZE, "Dynamic"); 7099 } else { 7100 snprintf(buffer, SIZE, "0x%04x", mChannelMasks[i]); 7101 } 7102 result.append(buffer); 7103 result.append(i == (mChannelMasks.size() - 1) ? "" : ", "); 7104 } 7105 result.append("\n"); 7106 } 7107 7108 if (mFormats.size() != 0) { 7109 snprintf(buffer, SIZE, "%*s- formats: ", spaces, ""); 7110 result.append(buffer); 7111 for (size_t i = 0; i < mFormats.size(); i++) { 7112 const char *formatStr = enumToString(sFormatNameToEnumTable, 7113 ARRAY_SIZE(sFormatNameToEnumTable), 7114 mFormats[i]); 7115 if (i == 0 && strcmp(formatStr, "") == 0) { 7116 snprintf(buffer, SIZE, "Dynamic"); 7117 } else { 7118 snprintf(buffer, SIZE, "%s", formatStr); 7119 } 7120 result.append(buffer); 7121 result.append(i == (mFormats.size() - 1) ? "" : ", "); 7122 } 7123 result.append("\n"); 7124 } 7125 write(fd, result.string(), result.size()); 7126 if (mGains.size() != 0) { 7127 snprintf(buffer, SIZE, "%*s- gains:\n", spaces, ""); 7128 write(fd, buffer, strlen(buffer) + 1); 7129 result.append(buffer); 7130 for (size_t i = 0; i < mGains.size(); i++) { 7131 mGains[i]->dump(fd, spaces + 2, i); 7132 } 7133 } 7134} 7135 7136// --- AudioGain class implementation 7137 7138AudioPolicyManager::AudioGain::AudioGain(int index, bool useInChannelMask) 7139{ 7140 mIndex = index; 7141 mUseInChannelMask = useInChannelMask; 7142 memset(&mGain, 0, sizeof(struct audio_gain)); 7143} 7144 7145void AudioPolicyManager::AudioGain::getDefaultConfig(struct audio_gain_config *config) 7146{ 7147 config->index = mIndex; 7148 config->mode = mGain.mode; 7149 config->channel_mask = mGain.channel_mask; 7150 if ((mGain.mode & AUDIO_GAIN_MODE_JOINT) == AUDIO_GAIN_MODE_JOINT) { 7151 config->values[0] = mGain.default_value; 7152 } else { 7153 uint32_t numValues; 7154 if (mUseInChannelMask) { 7155 numValues = audio_channel_count_from_in_mask(mGain.channel_mask); 7156 } else { 7157 numValues = audio_channel_count_from_out_mask(mGain.channel_mask); 7158 } 7159 for (size_t i = 0; i < numValues; i++) { 7160 config->values[i] = mGain.default_value; 7161 } 7162 } 7163 if ((mGain.mode & AUDIO_GAIN_MODE_RAMP) == AUDIO_GAIN_MODE_RAMP) { 7164 config->ramp_duration_ms = mGain.min_ramp_ms; 7165 } 7166} 7167 7168status_t AudioPolicyManager::AudioGain::checkConfig(const struct audio_gain_config *config) 7169{ 7170 if ((config->mode & ~mGain.mode) != 0) { 7171 return BAD_VALUE; 7172 } 7173 if ((config->mode & AUDIO_GAIN_MODE_JOINT) == AUDIO_GAIN_MODE_JOINT) { 7174 if ((config->values[0] < mGain.min_value) || 7175 (config->values[0] > mGain.max_value)) { 7176 return BAD_VALUE; 7177 } 7178 } else { 7179 if ((config->channel_mask & ~mGain.channel_mask) != 0) { 7180 return BAD_VALUE; 7181 } 7182 uint32_t numValues; 7183 if (mUseInChannelMask) { 7184 numValues = audio_channel_count_from_in_mask(config->channel_mask); 7185 } else { 7186 numValues = audio_channel_count_from_out_mask(config->channel_mask); 7187 } 7188 for (size_t i = 0; i < numValues; i++) { 7189 if ((config->values[i] < mGain.min_value) || 7190 (config->values[i] > mGain.max_value)) { 7191 return BAD_VALUE; 7192 } 7193 } 7194 } 7195 if ((config->mode & AUDIO_GAIN_MODE_RAMP) == AUDIO_GAIN_MODE_RAMP) { 7196 if ((config->ramp_duration_ms < mGain.min_ramp_ms) || 7197 (config->ramp_duration_ms > mGain.max_ramp_ms)) { 7198 return BAD_VALUE; 7199 } 7200 } 7201 return NO_ERROR; 7202} 7203 7204void AudioPolicyManager::AudioGain::dump(int fd, int spaces, int index) const 7205{ 7206 const size_t SIZE = 256; 7207 char buffer[SIZE]; 7208 String8 result; 7209 7210 snprintf(buffer, SIZE, "%*sGain %d:\n", spaces, "", index+1); 7211 result.append(buffer); 7212 snprintf(buffer, SIZE, "%*s- mode: %08x\n", spaces, "", mGain.mode); 7213 result.append(buffer); 7214 snprintf(buffer, SIZE, "%*s- channel_mask: %08x\n", spaces, "", mGain.channel_mask); 7215 result.append(buffer); 7216 snprintf(buffer, SIZE, "%*s- min_value: %d mB\n", spaces, "", mGain.min_value); 7217 result.append(buffer); 7218 snprintf(buffer, SIZE, "%*s- max_value: %d mB\n", spaces, "", mGain.max_value); 7219 result.append(buffer); 7220 snprintf(buffer, SIZE, "%*s- default_value: %d mB\n", spaces, "", mGain.default_value); 7221 result.append(buffer); 7222 snprintf(buffer, SIZE, "%*s- step_value: %d mB\n", spaces, "", mGain.step_value); 7223 result.append(buffer); 7224 snprintf(buffer, SIZE, "%*s- min_ramp_ms: %d ms\n", spaces, "", mGain.min_ramp_ms); 7225 result.append(buffer); 7226 snprintf(buffer, SIZE, "%*s- max_ramp_ms: %d ms\n", spaces, "", mGain.max_ramp_ms); 7227 result.append(buffer); 7228 7229 write(fd, result.string(), result.size()); 7230} 7231 7232// --- AudioPortConfig class implementation 7233 7234AudioPolicyManager::AudioPortConfig::AudioPortConfig() 7235{ 7236 mSamplingRate = 0; 7237 mChannelMask = AUDIO_CHANNEL_NONE; 7238 mFormat = AUDIO_FORMAT_INVALID; 7239 mGain.index = -1; 7240} 7241 7242status_t AudioPolicyManager::AudioPortConfig::applyAudioPortConfig( 7243 const struct audio_port_config *config, 7244 struct audio_port_config *backupConfig) 7245{ 7246 struct audio_port_config localBackupConfig; 7247 status_t status = NO_ERROR; 7248 7249 localBackupConfig.config_mask = config->config_mask; 7250 toAudioPortConfig(&localBackupConfig); 7251 7252 sp<AudioPort> audioport = getAudioPort(); 7253 if (audioport == 0) { 7254 status = NO_INIT; 7255 goto exit; 7256 } 7257 if (config->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { 7258 status = audioport->checkExactSamplingRate(config->sample_rate); 7259 if (status != NO_ERROR) { 7260 goto exit; 7261 } 7262 mSamplingRate = config->sample_rate; 7263 } 7264 if (config->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { 7265 status = audioport->checkExactChannelMask(config->channel_mask); 7266 if (status != NO_ERROR) { 7267 goto exit; 7268 } 7269 mChannelMask = config->channel_mask; 7270 } 7271 if (config->config_mask & AUDIO_PORT_CONFIG_FORMAT) { 7272 status = audioport->checkFormat(config->format); 7273 if (status != NO_ERROR) { 7274 goto exit; 7275 } 7276 mFormat = config->format; 7277 } 7278 if (config->config_mask & AUDIO_PORT_CONFIG_GAIN) { 7279 status = audioport->checkGain(&config->gain, config->gain.index); 7280 if (status != NO_ERROR) { 7281 goto exit; 7282 } 7283 mGain = config->gain; 7284 } 7285 7286exit: 7287 if (status != NO_ERROR) { 7288 applyAudioPortConfig(&localBackupConfig); 7289 } 7290 if (backupConfig != NULL) { 7291 *backupConfig = localBackupConfig; 7292 } 7293 return status; 7294} 7295 7296void AudioPolicyManager::AudioPortConfig::toAudioPortConfig( 7297 struct audio_port_config *dstConfig, 7298 const struct audio_port_config *srcConfig) const 7299{ 7300 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { 7301 dstConfig->sample_rate = mSamplingRate; 7302 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE)) { 7303 dstConfig->sample_rate = srcConfig->sample_rate; 7304 } 7305 } else { 7306 dstConfig->sample_rate = 0; 7307 } 7308 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { 7309 dstConfig->channel_mask = mChannelMask; 7310 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK)) { 7311 dstConfig->channel_mask = srcConfig->channel_mask; 7312 } 7313 } else { 7314 dstConfig->channel_mask = AUDIO_CHANNEL_NONE; 7315 } 7316 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_FORMAT) { 7317 dstConfig->format = mFormat; 7318 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_FORMAT)) { 7319 dstConfig->format = srcConfig->format; 7320 } 7321 } else { 7322 dstConfig->format = AUDIO_FORMAT_INVALID; 7323 } 7324 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_GAIN) { 7325 dstConfig->gain = mGain; 7326 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_GAIN)) { 7327 dstConfig->gain = srcConfig->gain; 7328 } 7329 } else { 7330 dstConfig->gain.index = -1; 7331 } 7332 if (dstConfig->gain.index != -1) { 7333 dstConfig->config_mask |= AUDIO_PORT_CONFIG_GAIN; 7334 } else { 7335 dstConfig->config_mask &= ~AUDIO_PORT_CONFIG_GAIN; 7336 } 7337} 7338 7339// --- IOProfile class implementation 7340 7341AudioPolicyManager::IOProfile::IOProfile(const String8& name, audio_port_role_t role, 7342 const sp<HwModule>& module) 7343 : AudioPort(name, AUDIO_PORT_TYPE_MIX, role, module) 7344{ 7345} 7346 7347AudioPolicyManager::IOProfile::~IOProfile() 7348{ 7349} 7350 7351// checks if the IO profile is compatible with specified parameters. 7352// Sampling rate, format and channel mask must be specified in order to 7353// get a valid a match 7354bool AudioPolicyManager::IOProfile::isCompatibleProfile(audio_devices_t device, 7355 String8 address, 7356 uint32_t samplingRate, 7357 uint32_t *updatedSamplingRate, 7358 audio_format_t format, 7359 audio_channel_mask_t channelMask, 7360 uint32_t flags) const 7361{ 7362 const bool isPlaybackThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SOURCE; 7363 const bool isRecordThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SINK; 7364 ALOG_ASSERT(isPlaybackThread != isRecordThread); 7365 7366 if (device != AUDIO_DEVICE_NONE && mSupportedDevices.getDevice(device, address) == 0) { 7367 return false; 7368 } 7369 7370 if (samplingRate == 0) { 7371 return false; 7372 } 7373 uint32_t myUpdatedSamplingRate = samplingRate; 7374 if (isPlaybackThread && checkExactSamplingRate(samplingRate) != NO_ERROR) { 7375 return false; 7376 } 7377 if (isRecordThread && checkCompatibleSamplingRate(samplingRate, &myUpdatedSamplingRate) != 7378 NO_ERROR) { 7379 return false; 7380 } 7381 7382 if (!audio_is_valid_format(format) || checkFormat(format) != NO_ERROR) { 7383 return false; 7384 } 7385 7386 if (isPlaybackThread && (!audio_is_output_channel(channelMask) || 7387 checkExactChannelMask(channelMask) != NO_ERROR)) { 7388 return false; 7389 } 7390 if (isRecordThread && (!audio_is_input_channel(channelMask) || 7391 checkCompatibleChannelMask(channelMask) != NO_ERROR)) { 7392 return false; 7393 } 7394 7395 if (isPlaybackThread && (mFlags & flags) != flags) { 7396 return false; 7397 } 7398 // The only input flag that is allowed to be different is the fast flag. 7399 // An existing fast stream is compatible with a normal track request. 7400 // An existing normal stream is compatible with a fast track request, 7401 // but the fast request will be denied by AudioFlinger and converted to normal track. 7402 if (isRecordThread && ((mFlags ^ flags) & 7403 ~AUDIO_INPUT_FLAG_FAST)) { 7404 return false; 7405 } 7406 7407 if (updatedSamplingRate != NULL) { 7408 *updatedSamplingRate = myUpdatedSamplingRate; 7409 } 7410 return true; 7411} 7412 7413void AudioPolicyManager::IOProfile::dump(int fd) 7414{ 7415 const size_t SIZE = 256; 7416 char buffer[SIZE]; 7417 String8 result; 7418 7419 AudioPort::dump(fd, 4); 7420 7421 snprintf(buffer, SIZE, " - flags: 0x%04x\n", mFlags); 7422 result.append(buffer); 7423 snprintf(buffer, SIZE, " - devices:\n"); 7424 result.append(buffer); 7425 write(fd, result.string(), result.size()); 7426 for (size_t i = 0; i < mSupportedDevices.size(); i++) { 7427 mSupportedDevices[i]->dump(fd, 6, i); 7428 } 7429} 7430 7431void AudioPolicyManager::IOProfile::log() 7432{ 7433 const size_t SIZE = 256; 7434 char buffer[SIZE]; 7435 String8 result; 7436 7437 ALOGV(" - sampling rates: "); 7438 for (size_t i = 0; i < mSamplingRates.size(); i++) { 7439 ALOGV(" %d", mSamplingRates[i]); 7440 } 7441 7442 ALOGV(" - channel masks: "); 7443 for (size_t i = 0; i < mChannelMasks.size(); i++) { 7444 ALOGV(" 0x%04x", mChannelMasks[i]); 7445 } 7446 7447 ALOGV(" - formats: "); 7448 for (size_t i = 0; i < mFormats.size(); i++) { 7449 ALOGV(" 0x%08x", mFormats[i]); 7450 } 7451 7452 ALOGV(" - devices: 0x%04x\n", mSupportedDevices.types()); 7453 ALOGV(" - flags: 0x%04x\n", mFlags); 7454} 7455 7456 7457// --- DeviceDescriptor implementation 7458 7459 7460AudioPolicyManager::DeviceDescriptor::DeviceDescriptor(const String8& name, audio_devices_t type) : 7461 AudioPort(name, AUDIO_PORT_TYPE_DEVICE, 7462 audio_is_output_device(type) ? AUDIO_PORT_ROLE_SINK : 7463 AUDIO_PORT_ROLE_SOURCE, 7464 NULL), 7465 mDeviceType(type), mAddress(""), mId(0) 7466{ 7467} 7468 7469bool AudioPolicyManager::DeviceDescriptor::equals(const sp<DeviceDescriptor>& other) const 7470{ 7471 // Devices are considered equal if they: 7472 // - are of the same type (a device type cannot be AUDIO_DEVICE_NONE) 7473 // - have the same address or one device does not specify the address 7474 // - have the same channel mask or one device does not specify the channel mask 7475 return (mDeviceType == other->mDeviceType) && 7476 (mAddress == "" || other->mAddress == "" || mAddress == other->mAddress) && 7477 (mChannelMask == 0 || other->mChannelMask == 0 || 7478 mChannelMask == other->mChannelMask); 7479} 7480 7481void AudioPolicyManager::DeviceDescriptor::loadGains(cnode *root) 7482{ 7483 AudioPort::loadGains(root); 7484 if (mGains.size() > 0) { 7485 mGains[0]->getDefaultConfig(&mGain); 7486 } 7487} 7488 7489 7490void AudioPolicyManager::DeviceVector::refreshTypes() 7491{ 7492 mDeviceTypes = AUDIO_DEVICE_NONE; 7493 for(size_t i = 0; i < size(); i++) { 7494 mDeviceTypes |= itemAt(i)->mDeviceType; 7495 } 7496 ALOGV("DeviceVector::refreshTypes() mDeviceTypes %08x", mDeviceTypes); 7497} 7498 7499ssize_t AudioPolicyManager::DeviceVector::indexOf(const sp<DeviceDescriptor>& item) const 7500{ 7501 for(size_t i = 0; i < size(); i++) { 7502 if (item->equals(itemAt(i))) { 7503 return i; 7504 } 7505 } 7506 return -1; 7507} 7508 7509ssize_t AudioPolicyManager::DeviceVector::add(const sp<DeviceDescriptor>& item) 7510{ 7511 ssize_t ret = indexOf(item); 7512 7513 if (ret < 0) { 7514 ret = SortedVector::add(item); 7515 if (ret >= 0) { 7516 refreshTypes(); 7517 } 7518 } else { 7519 ALOGW("DeviceVector::add device %08x already in", item->mDeviceType); 7520 ret = -1; 7521 } 7522 return ret; 7523} 7524 7525ssize_t AudioPolicyManager::DeviceVector::remove(const sp<DeviceDescriptor>& item) 7526{ 7527 size_t i; 7528 ssize_t ret = indexOf(item); 7529 7530 if (ret < 0) { 7531 ALOGW("DeviceVector::remove device %08x not in", item->mDeviceType); 7532 } else { 7533 ret = SortedVector::removeAt(ret); 7534 if (ret >= 0) { 7535 refreshTypes(); 7536 } 7537 } 7538 return ret; 7539} 7540 7541void AudioPolicyManager::DeviceVector::loadDevicesFromType(audio_devices_t types) 7542{ 7543 DeviceVector deviceList; 7544 7545 uint32_t role_bit = AUDIO_DEVICE_BIT_IN & types; 7546 types &= ~role_bit; 7547 7548 while (types) { 7549 uint32_t i = 31 - __builtin_clz(types); 7550 uint32_t type = 1 << i; 7551 types &= ~type; 7552 add(new DeviceDescriptor(String8(""), type | role_bit)); 7553 } 7554} 7555 7556void AudioPolicyManager::DeviceVector::loadDevicesFromName(char *name, 7557 const DeviceVector& declaredDevices) 7558{ 7559 char *devName = strtok(name, "|"); 7560 while (devName != NULL) { 7561 if (strlen(devName) != 0) { 7562 audio_devices_t type = stringToEnum(sDeviceNameToEnumTable, 7563 ARRAY_SIZE(sDeviceNameToEnumTable), 7564 devName); 7565 if (type != AUDIO_DEVICE_NONE) { 7566 sp<DeviceDescriptor> dev = new DeviceDescriptor(String8(""), type); 7567 if (type == AUDIO_DEVICE_IN_REMOTE_SUBMIX || 7568 type == AUDIO_DEVICE_OUT_REMOTE_SUBMIX ) { 7569 dev->mAddress = String8("0"); 7570 } 7571 add(dev); 7572 } else { 7573 sp<DeviceDescriptor> deviceDesc = 7574 declaredDevices.getDeviceFromName(String8(devName)); 7575 if (deviceDesc != 0) { 7576 add(deviceDesc); 7577 } 7578 } 7579 } 7580 devName = strtok(NULL, "|"); 7581 } 7582} 7583 7584sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDevice( 7585 audio_devices_t type, String8 address) const 7586{ 7587 sp<DeviceDescriptor> device; 7588 for (size_t i = 0; i < size(); i++) { 7589 if (itemAt(i)->mDeviceType == type) { 7590 if (address == "" || itemAt(i)->mAddress == address) { 7591 device = itemAt(i); 7592 if (itemAt(i)->mAddress == address) { 7593 break; 7594 } 7595 } 7596 } 7597 } 7598 ALOGV("DeviceVector::getDevice() for type %08x address %s found %p", 7599 type, address.string(), device.get()); 7600 return device; 7601} 7602 7603sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDeviceFromId( 7604 audio_port_handle_t id) const 7605{ 7606 sp<DeviceDescriptor> device; 7607 for (size_t i = 0; i < size(); i++) { 7608 ALOGV("DeviceVector::getDeviceFromId(%d) itemAt(%zu)->mId %d", id, i, itemAt(i)->mId); 7609 if (itemAt(i)->mId == id) { 7610 device = itemAt(i); 7611 break; 7612 } 7613 } 7614 return device; 7615} 7616 7617AudioPolicyManager::DeviceVector AudioPolicyManager::DeviceVector::getDevicesFromType( 7618 audio_devices_t type) const 7619{ 7620 DeviceVector devices; 7621 for (size_t i = 0; (i < size()) && (type != AUDIO_DEVICE_NONE); i++) { 7622 if (itemAt(i)->mDeviceType & type & ~AUDIO_DEVICE_BIT_IN) { 7623 devices.add(itemAt(i)); 7624 type &= ~itemAt(i)->mDeviceType; 7625 ALOGV("DeviceVector::getDevicesFromType() for type %x found %p", 7626 itemAt(i)->mDeviceType, itemAt(i).get()); 7627 } 7628 } 7629 return devices; 7630} 7631 7632AudioPolicyManager::DeviceVector AudioPolicyManager::DeviceVector::getDevicesFromTypeAddr( 7633 audio_devices_t type, String8 address) const 7634{ 7635 DeviceVector devices; 7636 for (size_t i = 0; i < size(); i++) { 7637 if (itemAt(i)->mDeviceType == type) { 7638 if (itemAt(i)->mAddress == address) { 7639 devices.add(itemAt(i)); 7640 } 7641 } 7642 } 7643 return devices; 7644} 7645 7646sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDeviceFromName( 7647 const String8& name) const 7648{ 7649 sp<DeviceDescriptor> device; 7650 for (size_t i = 0; i < size(); i++) { 7651 if (itemAt(i)->mName == name) { 7652 device = itemAt(i); 7653 break; 7654 } 7655 } 7656 return device; 7657} 7658 7659void AudioPolicyManager::DeviceDescriptor::toAudioPortConfig( 7660 struct audio_port_config *dstConfig, 7661 const struct audio_port_config *srcConfig) const 7662{ 7663 dstConfig->config_mask = AUDIO_PORT_CONFIG_CHANNEL_MASK|AUDIO_PORT_CONFIG_GAIN; 7664 if (srcConfig != NULL) { 7665 dstConfig->config_mask |= srcConfig->config_mask; 7666 } 7667 7668 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 7669 7670 dstConfig->id = mId; 7671 dstConfig->role = audio_is_output_device(mDeviceType) ? 7672 AUDIO_PORT_ROLE_SINK : AUDIO_PORT_ROLE_SOURCE; 7673 dstConfig->type = AUDIO_PORT_TYPE_DEVICE; 7674 dstConfig->ext.device.type = mDeviceType; 7675 dstConfig->ext.device.hw_module = mModule->mHandle; 7676 strncpy(dstConfig->ext.device.address, mAddress.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN); 7677} 7678 7679void AudioPolicyManager::DeviceDescriptor::toAudioPort(struct audio_port *port) const 7680{ 7681 ALOGV("DeviceDescriptor::toAudioPort() handle %d type %x", mId, mDeviceType); 7682 AudioPort::toAudioPort(port); 7683 port->id = mId; 7684 toAudioPortConfig(&port->active_config); 7685 port->ext.device.type = mDeviceType; 7686 port->ext.device.hw_module = mModule->mHandle; 7687 strncpy(port->ext.device.address, mAddress.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN); 7688} 7689 7690status_t AudioPolicyManager::DeviceDescriptor::dump(int fd, int spaces, int index) const 7691{ 7692 const size_t SIZE = 256; 7693 char buffer[SIZE]; 7694 String8 result; 7695 7696 snprintf(buffer, SIZE, "%*sDevice %d:\n", spaces, "", index+1); 7697 result.append(buffer); 7698 if (mId != 0) { 7699 snprintf(buffer, SIZE, "%*s- id: %2d\n", spaces, "", mId); 7700 result.append(buffer); 7701 } 7702 snprintf(buffer, SIZE, "%*s- type: %-48s\n", spaces, "", 7703 enumToString(sDeviceNameToEnumTable, 7704 ARRAY_SIZE(sDeviceNameToEnumTable), 7705 mDeviceType)); 7706 result.append(buffer); 7707 if (mAddress.size() != 0) { 7708 snprintf(buffer, SIZE, "%*s- address: %-32s\n", spaces, "", mAddress.string()); 7709 result.append(buffer); 7710 } 7711 write(fd, result.string(), result.size()); 7712 AudioPort::dump(fd, spaces); 7713 7714 return NO_ERROR; 7715} 7716 7717status_t AudioPolicyManager::AudioPatch::dump(int fd, int spaces, int index) const 7718{ 7719 const size_t SIZE = 256; 7720 char buffer[SIZE]; 7721 String8 result; 7722 7723 7724 snprintf(buffer, SIZE, "%*sAudio patch %d:\n", spaces, "", index+1); 7725 result.append(buffer); 7726 snprintf(buffer, SIZE, "%*s- handle: %2d\n", spaces, "", mHandle); 7727 result.append(buffer); 7728 snprintf(buffer, SIZE, "%*s- audio flinger handle: %2d\n", spaces, "", mAfPatchHandle); 7729 result.append(buffer); 7730 snprintf(buffer, SIZE, "%*s- owner uid: %2d\n", spaces, "", mUid); 7731 result.append(buffer); 7732 snprintf(buffer, SIZE, "%*s- %d sources:\n", spaces, "", mPatch.num_sources); 7733 result.append(buffer); 7734 for (size_t i = 0; i < mPatch.num_sources; i++) { 7735 if (mPatch.sources[i].type == AUDIO_PORT_TYPE_DEVICE) { 7736 snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "", 7737 mPatch.sources[i].id, enumToString(sDeviceNameToEnumTable, 7738 ARRAY_SIZE(sDeviceNameToEnumTable), 7739 mPatch.sources[i].ext.device.type)); 7740 } else { 7741 snprintf(buffer, SIZE, "%*s- Mix ID %d I/O handle %d\n", spaces + 2, "", 7742 mPatch.sources[i].id, mPatch.sources[i].ext.mix.handle); 7743 } 7744 result.append(buffer); 7745 } 7746 snprintf(buffer, SIZE, "%*s- %d sinks:\n", spaces, "", mPatch.num_sinks); 7747 result.append(buffer); 7748 for (size_t i = 0; i < mPatch.num_sinks; i++) { 7749 if (mPatch.sinks[i].type == AUDIO_PORT_TYPE_DEVICE) { 7750 snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "", 7751 mPatch.sinks[i].id, enumToString(sDeviceNameToEnumTable, 7752 ARRAY_SIZE(sDeviceNameToEnumTable), 7753 mPatch.sinks[i].ext.device.type)); 7754 } else { 7755 snprintf(buffer, SIZE, "%*s- Mix ID %d I/O handle %d\n", spaces + 2, "", 7756 mPatch.sinks[i].id, mPatch.sinks[i].ext.mix.handle); 7757 } 7758 result.append(buffer); 7759 } 7760 7761 write(fd, result.string(), result.size()); 7762 return NO_ERROR; 7763} 7764 7765// --- audio_policy.conf file parsing 7766 7767uint32_t AudioPolicyManager::parseOutputFlagNames(char *name) 7768{ 7769 uint32_t flag = 0; 7770 7771 // it is OK to cast name to non const here as we are not going to use it after 7772 // strtok() modifies it 7773 char *flagName = strtok(name, "|"); 7774 while (flagName != NULL) { 7775 if (strlen(flagName) != 0) { 7776 flag |= stringToEnum(sOutputFlagNameToEnumTable, 7777 ARRAY_SIZE(sOutputFlagNameToEnumTable), 7778 flagName); 7779 } 7780 flagName = strtok(NULL, "|"); 7781 } 7782 //force direct flag if offload flag is set: offloading implies a direct output stream 7783 // and all common behaviors are driven by checking only the direct flag 7784 // this should normally be set appropriately in the policy configuration file 7785 if ((flag & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 7786 flag |= AUDIO_OUTPUT_FLAG_DIRECT; 7787 } 7788 7789 return flag; 7790} 7791 7792uint32_t AudioPolicyManager::parseInputFlagNames(char *name) 7793{ 7794 uint32_t flag = 0; 7795 7796 // it is OK to cast name to non const here as we are not going to use it after 7797 // strtok() modifies it 7798 char *flagName = strtok(name, "|"); 7799 while (flagName != NULL) { 7800 if (strlen(flagName) != 0) { 7801 flag |= stringToEnum(sInputFlagNameToEnumTable, 7802 ARRAY_SIZE(sInputFlagNameToEnumTable), 7803 flagName); 7804 } 7805 flagName = strtok(NULL, "|"); 7806 } 7807 return flag; 7808} 7809 7810audio_devices_t AudioPolicyManager::parseDeviceNames(char *name) 7811{ 7812 uint32_t device = 0; 7813 7814 char *devName = strtok(name, "|"); 7815 while (devName != NULL) { 7816 if (strlen(devName) != 0) { 7817 device |= stringToEnum(sDeviceNameToEnumTable, 7818 ARRAY_SIZE(sDeviceNameToEnumTable), 7819 devName); 7820 } 7821 devName = strtok(NULL, "|"); 7822 } 7823 return device; 7824} 7825 7826void AudioPolicyManager::loadHwModule(cnode *root) 7827{ 7828 status_t status = NAME_NOT_FOUND; 7829 cnode *node; 7830 sp<HwModule> module = new HwModule(root->name); 7831 7832 node = config_find(root, DEVICES_TAG); 7833 if (node != NULL) { 7834 node = node->first_child; 7835 while (node) { 7836 ALOGV("loadHwModule() loading device %s", node->name); 7837 status_t tmpStatus = module->loadDevice(node); 7838 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 7839 status = tmpStatus; 7840 } 7841 node = node->next; 7842 } 7843 } 7844 node = config_find(root, OUTPUTS_TAG); 7845 if (node != NULL) { 7846 node = node->first_child; 7847 while (node) { 7848 ALOGV("loadHwModule() loading output %s", node->name); 7849 status_t tmpStatus = module->loadOutput(node); 7850 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 7851 status = tmpStatus; 7852 } 7853 node = node->next; 7854 } 7855 } 7856 node = config_find(root, INPUTS_TAG); 7857 if (node != NULL) { 7858 node = node->first_child; 7859 while (node) { 7860 ALOGV("loadHwModule() loading input %s", node->name); 7861 status_t tmpStatus = module->loadInput(node); 7862 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 7863 status = tmpStatus; 7864 } 7865 node = node->next; 7866 } 7867 } 7868 loadGlobalConfig(root, module); 7869 7870 if (status == NO_ERROR) { 7871 mHwModules.add(module); 7872 } 7873} 7874 7875void AudioPolicyManager::loadHwModules(cnode *root) 7876{ 7877 cnode *node = config_find(root, AUDIO_HW_MODULE_TAG); 7878 if (node == NULL) { 7879 return; 7880 } 7881 7882 node = node->first_child; 7883 while (node) { 7884 ALOGV("loadHwModules() loading module %s", node->name); 7885 loadHwModule(node); 7886 node = node->next; 7887 } 7888} 7889 7890void AudioPolicyManager::loadGlobalConfig(cnode *root, const sp<HwModule>& module) 7891{ 7892 cnode *node = config_find(root, GLOBAL_CONFIG_TAG); 7893 7894 if (node == NULL) { 7895 return; 7896 } 7897 DeviceVector declaredDevices; 7898 if (module != NULL) { 7899 declaredDevices = module->mDeclaredDevices; 7900 } 7901 7902 node = node->first_child; 7903 while (node) { 7904 if (strcmp(ATTACHED_OUTPUT_DEVICES_TAG, node->name) == 0) { 7905 mAvailableOutputDevices.loadDevicesFromName((char *)node->value, 7906 declaredDevices); 7907 ALOGV("loadGlobalConfig() Attached Output Devices %08x", 7908 mAvailableOutputDevices.types()); 7909 } else if (strcmp(DEFAULT_OUTPUT_DEVICE_TAG, node->name) == 0) { 7910 audio_devices_t device = (audio_devices_t)stringToEnum(sDeviceNameToEnumTable, 7911 ARRAY_SIZE(sDeviceNameToEnumTable), 7912 (char *)node->value); 7913 if (device != AUDIO_DEVICE_NONE) { 7914 mDefaultOutputDevice = new DeviceDescriptor(String8(""), device); 7915 } else { 7916 ALOGW("loadGlobalConfig() default device not specified"); 7917 } 7918 ALOGV("loadGlobalConfig() mDefaultOutputDevice %08x", mDefaultOutputDevice->mDeviceType); 7919 } else if (strcmp(ATTACHED_INPUT_DEVICES_TAG, node->name) == 0) { 7920 mAvailableInputDevices.loadDevicesFromName((char *)node->value, 7921 declaredDevices); 7922 ALOGV("loadGlobalConfig() Available InputDevices %08x", mAvailableInputDevices.types()); 7923 } else if (strcmp(SPEAKER_DRC_ENABLED_TAG, node->name) == 0) { 7924 mSpeakerDrcEnabled = stringToBool((char *)node->value); 7925 ALOGV("loadGlobalConfig() mSpeakerDrcEnabled = %d", mSpeakerDrcEnabled); 7926 } else if (strcmp(AUDIO_HAL_VERSION_TAG, node->name) == 0) { 7927 uint32_t major, minor; 7928 sscanf((char *)node->value, "%u.%u", &major, &minor); 7929 module->mHalVersion = HARDWARE_DEVICE_API_VERSION(major, minor); 7930 ALOGV("loadGlobalConfig() mHalVersion = %04x major %u minor %u", 7931 module->mHalVersion, major, minor); 7932 } 7933 node = node->next; 7934 } 7935} 7936 7937status_t AudioPolicyManager::loadAudioPolicyConfig(const char *path) 7938{ 7939 cnode *root; 7940 char *data; 7941 7942 data = (char *)load_file(path, NULL); 7943 if (data == NULL) { 7944 return -ENODEV; 7945 } 7946 root = config_node("", ""); 7947 config_load(root, data); 7948 7949 loadHwModules(root); 7950 // legacy audio_policy.conf files have one global_configuration section 7951 loadGlobalConfig(root, getModuleFromName(AUDIO_HARDWARE_MODULE_ID_PRIMARY)); 7952 config_free(root); 7953 free(root); 7954 free(data); 7955 7956 ALOGI("loadAudioPolicyConfig() loaded %s\n", path); 7957 7958 return NO_ERROR; 7959} 7960 7961void AudioPolicyManager::defaultAudioPolicyConfig(void) 7962{ 7963 sp<HwModule> module; 7964 sp<IOProfile> profile; 7965 sp<DeviceDescriptor> defaultInputDevice = new DeviceDescriptor(String8(""), 7966 AUDIO_DEVICE_IN_BUILTIN_MIC); 7967 mAvailableOutputDevices.add(mDefaultOutputDevice); 7968 mAvailableInputDevices.add(defaultInputDevice); 7969 7970 module = new HwModule("primary"); 7971 7972 profile = new IOProfile(String8("primary"), AUDIO_PORT_ROLE_SOURCE, module); 7973 profile->mSamplingRates.add(44100); 7974 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 7975 profile->mChannelMasks.add(AUDIO_CHANNEL_OUT_STEREO); 7976 profile->mSupportedDevices.add(mDefaultOutputDevice); 7977 profile->mFlags = AUDIO_OUTPUT_FLAG_PRIMARY; 7978 module->mOutputProfiles.add(profile); 7979 7980 profile = new IOProfile(String8("primary"), AUDIO_PORT_ROLE_SINK, module); 7981 profile->mSamplingRates.add(8000); 7982 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 7983 profile->mChannelMasks.add(AUDIO_CHANNEL_IN_MONO); 7984 profile->mSupportedDevices.add(defaultInputDevice); 7985 module->mInputProfiles.add(profile); 7986 7987 mHwModules.add(module); 7988} 7989 7990audio_stream_type_t AudioPolicyManager::streamTypefromAttributesInt(const audio_attributes_t *attr) 7991{ 7992 // flags to stream type mapping 7993 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 7994 return AUDIO_STREAM_ENFORCED_AUDIBLE; 7995 } 7996 if ((attr->flags & AUDIO_FLAG_SCO) == AUDIO_FLAG_SCO) { 7997 return AUDIO_STREAM_BLUETOOTH_SCO; 7998 } 7999 8000 // usage to stream type mapping 8001 switch (attr->usage) { 8002 case AUDIO_USAGE_MEDIA: 8003 case AUDIO_USAGE_GAME: 8004 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 8005 return AUDIO_STREAM_MUSIC; 8006 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 8007 if (isStreamActive(AUDIO_STREAM_ALARM)) { 8008 return AUDIO_STREAM_ALARM; 8009 } 8010 if (isStreamActive(AUDIO_STREAM_RING)) { 8011 return AUDIO_STREAM_RING; 8012 } 8013 if (isInCall()) { 8014 return AUDIO_STREAM_VOICE_CALL; 8015 } 8016 return AUDIO_STREAM_ACCESSIBILITY; 8017 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 8018 return AUDIO_STREAM_SYSTEM; 8019 case AUDIO_USAGE_VOICE_COMMUNICATION: 8020 return AUDIO_STREAM_VOICE_CALL; 8021 8022 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 8023 return AUDIO_STREAM_DTMF; 8024 8025 case AUDIO_USAGE_ALARM: 8026 return AUDIO_STREAM_ALARM; 8027 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 8028 return AUDIO_STREAM_RING; 8029 8030 case AUDIO_USAGE_NOTIFICATION: 8031 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 8032 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 8033 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 8034 case AUDIO_USAGE_NOTIFICATION_EVENT: 8035 return AUDIO_STREAM_NOTIFICATION; 8036 8037 case AUDIO_USAGE_UNKNOWN: 8038 default: 8039 return AUDIO_STREAM_MUSIC; 8040 } 8041} 8042 8043bool AudioPolicyManager::isValidAttributes(const audio_attributes_t *paa) { 8044 // has flags that map to a strategy? 8045 if ((paa->flags & (AUDIO_FLAG_AUDIBILITY_ENFORCED | AUDIO_FLAG_SCO | AUDIO_FLAG_BEACON)) != 0) { 8046 return true; 8047 } 8048 8049 // has known usage? 8050 switch (paa->usage) { 8051 case AUDIO_USAGE_UNKNOWN: 8052 case AUDIO_USAGE_MEDIA: 8053 case AUDIO_USAGE_VOICE_COMMUNICATION: 8054 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 8055 case AUDIO_USAGE_ALARM: 8056 case AUDIO_USAGE_NOTIFICATION: 8057 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 8058 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 8059 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 8060 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 8061 case AUDIO_USAGE_NOTIFICATION_EVENT: 8062 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 8063 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 8064 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 8065 case AUDIO_USAGE_GAME: 8066 case AUDIO_USAGE_VIRTUAL_SOURCE: 8067 break; 8068 default: 8069 return false; 8070 } 8071 return true; 8072} 8073 8074}; // namespace android 8075