AudioPolicyManager.cpp revision a82797faddb37adb2d441737884576684c8515cb
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 String8 address = (device_address == NULL) ? String8("") : String8(device_address); 226 // handle legacy remote submix case where the address was not always specified 227 if (deviceDistinguishesOnAddress(device) && (address.length() == 0)) { 228 address = String8("0"); 229 } 230 231 ALOGV("setDeviceConnectionState() device: %x, state %d, address %s", 232 device, state, address.string()); 233 234 // connect/disconnect only 1 device at a time 235 if (!audio_is_output_device(device) && !audio_is_input_device(device)) return BAD_VALUE; 236 237 // handle output devices 238 if (audio_is_output_device(device)) { 239 SortedVector <audio_io_handle_t> outputs; 240 241 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 242 devDesc->mAddress = address; 243 ssize_t index = mAvailableOutputDevices.indexOf(devDesc); 244 245 // save a copy of the opened output descriptors before any output is opened or closed 246 // by checkOutputsForDevice(). This will be needed by checkOutputForAllStrategies() 247 mPreviousOutputs = mOutputs; 248 switch (state) 249 { 250 // handle output device connection 251 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: 252 if (index >= 0) { 253 ALOGW("setDeviceConnectionState() device already connected: %x", device); 254 return INVALID_OPERATION; 255 } 256 ALOGV("setDeviceConnectionState() connecting device %x", device); 257 258 // register new device as available 259 index = mAvailableOutputDevices.add(devDesc); 260 if (index >= 0) { 261 sp<HwModule> module = getModuleForDevice(device); 262 if (module == 0) { 263 ALOGD("setDeviceConnectionState() could not find HW module for device %08x", 264 device); 265 mAvailableOutputDevices.remove(devDesc); 266 return INVALID_OPERATION; 267 } 268 mAvailableOutputDevices[index]->mId = nextUniqueId(); 269 mAvailableOutputDevices[index]->mModule = module; 270 } else { 271 return NO_MEMORY; 272 } 273 274 if (checkOutputsForDevice(devDesc, state, outputs, address) != NO_ERROR) { 275 mAvailableOutputDevices.remove(devDesc); 276 return INVALID_OPERATION; 277 } 278 // outputs should never be empty here 279 ALOG_ASSERT(outputs.size() != 0, "setDeviceConnectionState():" 280 "checkOutputsForDevice() returned no outputs but status OK"); 281 ALOGV("setDeviceConnectionState() checkOutputsForDevice() returned %zu outputs", 282 outputs.size()); 283 break; 284 // handle output device disconnection 285 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 286 if (index < 0) { 287 ALOGW("setDeviceConnectionState() device not connected: %x", device); 288 return INVALID_OPERATION; 289 } 290 291 ALOGV("setDeviceConnectionState() disconnecting output device %x", device); 292 293 // Set Disconnect to HALs 294 AudioParameter param = AudioParameter(address); 295 param.addInt(String8(AUDIO_PARAMETER_DEVICE_DISCONNECT), device); 296 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 297 298 // remove device from available output devices 299 mAvailableOutputDevices.remove(devDesc); 300 301 checkOutputsForDevice(devDesc, state, outputs, address); 302 } break; 303 304 default: 305 ALOGE("setDeviceConnectionState() invalid state: %x", state); 306 return BAD_VALUE; 307 } 308 309 // checkA2dpSuspend must run before checkOutputForAllStrategies so that A2DP 310 // output is suspended before any tracks are moved to it 311 checkA2dpSuspend(); 312 checkOutputForAllStrategies(); 313 // outputs must be closed after checkOutputForAllStrategies() is executed 314 if (!outputs.isEmpty()) { 315 for (size_t i = 0; i < outputs.size(); i++) { 316 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 317 // close unused outputs after device disconnection or direct outputs that have been 318 // opened by checkOutputsForDevice() to query dynamic parameters 319 if ((state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) || 320 (((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) && 321 (desc->mDirectOpenCount == 0))) { 322 closeOutput(outputs[i]); 323 } 324 } 325 // check again after closing A2DP output to reset mA2dpSuspended if needed 326 checkA2dpSuspend(); 327 } 328 329 updateDevicesAndOutputs(); 330 if (mPhoneState == AUDIO_MODE_IN_CALL) { 331 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 332 updateCallRouting(newDevice); 333 } 334 for (size_t i = 0; i < mOutputs.size(); i++) { 335 audio_io_handle_t output = mOutputs.keyAt(i); 336 if ((mPhoneState != AUDIO_MODE_IN_CALL) || (output != mPrimaryOutput)) { 337 audio_devices_t newDevice = getNewOutputDevice(mOutputs.keyAt(i), 338 true /*fromCache*/); 339 // do not force device change on duplicated output because if device is 0, it will 340 // also force a device 0 for the two outputs it is duplicated to which may override 341 // a valid device selection on those outputs. 342 bool force = !mOutputs.valueAt(i)->isDuplicated() 343 && (!deviceDistinguishesOnAddress(device) 344 // always force when disconnecting (a non-duplicated device) 345 || (state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE)); 346 setOutputDevice(output, newDevice, force, 0); 347 } 348 } 349 350 mpClientInterface->onAudioPortListUpdate(); 351 return NO_ERROR; 352 } // end if is output device 353 354 // handle input devices 355 if (audio_is_input_device(device)) { 356 SortedVector <audio_io_handle_t> inputs; 357 358 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 359 devDesc->mAddress = address; 360 ssize_t index = mAvailableInputDevices.indexOf(devDesc); 361 switch (state) 362 { 363 // handle input device connection 364 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: { 365 if (index >= 0) { 366 ALOGW("setDeviceConnectionState() device already connected: %d", device); 367 return INVALID_OPERATION; 368 } 369 sp<HwModule> module = getModuleForDevice(device); 370 if (module == NULL) { 371 ALOGW("setDeviceConnectionState(): could not find HW module for device %08x", 372 device); 373 return INVALID_OPERATION; 374 } 375 if (checkInputsForDevice(device, state, inputs, address) != NO_ERROR) { 376 return INVALID_OPERATION; 377 } 378 379 index = mAvailableInputDevices.add(devDesc); 380 if (index >= 0) { 381 mAvailableInputDevices[index]->mId = nextUniqueId(); 382 mAvailableInputDevices[index]->mModule = module; 383 } else { 384 return NO_MEMORY; 385 } 386 } break; 387 388 // handle input device disconnection 389 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 390 if (index < 0) { 391 ALOGW("setDeviceConnectionState() device not connected: %d", device); 392 return INVALID_OPERATION; 393 } 394 395 ALOGV("setDeviceConnectionState() disconnecting input device %x", device); 396 397 // Set Disconnect to HALs 398 AudioParameter param = AudioParameter(address); 399 param.addInt(String8(AUDIO_PARAMETER_DEVICE_DISCONNECT), device); 400 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 401 402 checkInputsForDevice(device, state, inputs, address); 403 mAvailableInputDevices.remove(devDesc); 404 405 } break; 406 407 default: 408 ALOGE("setDeviceConnectionState() invalid state: %x", state); 409 return BAD_VALUE; 410 } 411 412 closeAllInputs(); 413 414 if (mPhoneState == AUDIO_MODE_IN_CALL) { 415 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 416 updateCallRouting(newDevice); 417 } 418 419 mpClientInterface->onAudioPortListUpdate(); 420 return NO_ERROR; 421 } // end if is input device 422 423 ALOGW("setDeviceConnectionState() invalid device: %x", device); 424 return BAD_VALUE; 425} 426 427audio_policy_dev_state_t AudioPolicyManager::getDeviceConnectionState(audio_devices_t device, 428 const char *device_address) 429{ 430 audio_policy_dev_state_t state = AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 431 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 432 devDesc->mAddress = (device_address == NULL) ? String8("") : String8(device_address); 433 // handle legacy remote submix case where the address was not always specified 434 if (deviceDistinguishesOnAddress(device) && (devDesc->mAddress.length() == 0)) { 435 devDesc->mAddress = String8("0"); 436 } 437 ssize_t index; 438 DeviceVector *deviceVector; 439 440 if (audio_is_output_device(device)) { 441 deviceVector = &mAvailableOutputDevices; 442 } else if (audio_is_input_device(device)) { 443 deviceVector = &mAvailableInputDevices; 444 } else { 445 ALOGW("getDeviceConnectionState() invalid device type %08x", device); 446 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 447 } 448 449 index = deviceVector->indexOf(devDesc); 450 if (index >= 0) { 451 return AUDIO_POLICY_DEVICE_STATE_AVAILABLE; 452 } else { 453 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 454 } 455} 456 457void AudioPolicyManager::updateCallRouting(audio_devices_t rxDevice, int delayMs) 458{ 459 bool createTxPatch = false; 460 struct audio_patch patch; 461 patch.num_sources = 1; 462 patch.num_sinks = 1; 463 status_t status; 464 audio_patch_handle_t afPatchHandle; 465 DeviceVector deviceList; 466 467 audio_devices_t txDevice = getDeviceAndMixForInputSource(AUDIO_SOURCE_VOICE_COMMUNICATION); 468 ALOGV("updateCallRouting device rxDevice %08x txDevice %08x", rxDevice, txDevice); 469 470 // release existing RX patch if any 471 if (mCallRxPatch != 0) { 472 mpClientInterface->releaseAudioPatch(mCallRxPatch->mAfPatchHandle, 0); 473 mCallRxPatch.clear(); 474 } 475 // release TX patch if any 476 if (mCallTxPatch != 0) { 477 mpClientInterface->releaseAudioPatch(mCallTxPatch->mAfPatchHandle, 0); 478 mCallTxPatch.clear(); 479 } 480 481 // If the RX device is on the primary HW module, then use legacy routing method for voice calls 482 // via setOutputDevice() on primary output. 483 // Otherwise, create two audio patches for TX and RX path. 484 if (availablePrimaryOutputDevices() & rxDevice) { 485 setOutputDevice(mPrimaryOutput, rxDevice, true, delayMs); 486 // If the TX device is also on the primary HW module, setOutputDevice() will take care 487 // of it due to legacy implementation. If not, create a patch. 488 if ((availablePrimaryInputDevices() & txDevice & ~AUDIO_DEVICE_BIT_IN) 489 == AUDIO_DEVICE_NONE) { 490 createTxPatch = true; 491 } 492 } else { 493 // create RX path audio patch 494 deviceList = mAvailableOutputDevices.getDevicesFromType(rxDevice); 495 ALOG_ASSERT(!deviceList.isEmpty(), 496 "updateCallRouting() selected device not in output device list"); 497 sp<DeviceDescriptor> rxSinkDeviceDesc = deviceList.itemAt(0); 498 deviceList = mAvailableInputDevices.getDevicesFromType(AUDIO_DEVICE_IN_TELEPHONY_RX); 499 ALOG_ASSERT(!deviceList.isEmpty(), 500 "updateCallRouting() no telephony RX device"); 501 sp<DeviceDescriptor> rxSourceDeviceDesc = deviceList.itemAt(0); 502 503 rxSourceDeviceDesc->toAudioPortConfig(&patch.sources[0]); 504 rxSinkDeviceDesc->toAudioPortConfig(&patch.sinks[0]); 505 506 // request to reuse existing output stream if one is already opened to reach the RX device 507 SortedVector<audio_io_handle_t> outputs = 508 getOutputsForDevice(rxDevice, mOutputs); 509 audio_io_handle_t output = selectOutput(outputs, 510 AUDIO_OUTPUT_FLAG_NONE, 511 AUDIO_FORMAT_INVALID); 512 if (output != AUDIO_IO_HANDLE_NONE) { 513 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 514 ALOG_ASSERT(!outputDesc->isDuplicated(), 515 "updateCallRouting() RX device output is duplicated"); 516 outputDesc->toAudioPortConfig(&patch.sources[1]); 517 patch.num_sources = 2; 518 } 519 520 afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 521 status = mpClientInterface->createAudioPatch(&patch, &afPatchHandle, 0); 522 ALOGW_IF(status != NO_ERROR, "updateCallRouting() error %d creating RX audio patch", 523 status); 524 if (status == NO_ERROR) { 525 mCallRxPatch = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 526 &patch, mUidCached); 527 mCallRxPatch->mAfPatchHandle = afPatchHandle; 528 mCallRxPatch->mUid = mUidCached; 529 } 530 createTxPatch = true; 531 } 532 if (createTxPatch) { 533 534 struct audio_patch patch; 535 patch.num_sources = 1; 536 patch.num_sinks = 1; 537 deviceList = mAvailableInputDevices.getDevicesFromType(txDevice); 538 ALOG_ASSERT(!deviceList.isEmpty(), 539 "updateCallRouting() selected device not in input device list"); 540 sp<DeviceDescriptor> txSourceDeviceDesc = deviceList.itemAt(0); 541 txSourceDeviceDesc->toAudioPortConfig(&patch.sources[0]); 542 deviceList = mAvailableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_TELEPHONY_TX); 543 ALOG_ASSERT(!deviceList.isEmpty(), 544 "updateCallRouting() no telephony TX device"); 545 sp<DeviceDescriptor> txSinkDeviceDesc = deviceList.itemAt(0); 546 txSinkDeviceDesc->toAudioPortConfig(&patch.sinks[0]); 547 548 SortedVector<audio_io_handle_t> outputs = 549 getOutputsForDevice(AUDIO_DEVICE_OUT_TELEPHONY_TX, mOutputs); 550 audio_io_handle_t output = selectOutput(outputs, 551 AUDIO_OUTPUT_FLAG_NONE, 552 AUDIO_FORMAT_INVALID); 553 // request to reuse existing output stream if one is already opened to reach the TX 554 // path output device 555 if (output != AUDIO_IO_HANDLE_NONE) { 556 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 557 ALOG_ASSERT(!outputDesc->isDuplicated(), 558 "updateCallRouting() RX device output is duplicated"); 559 outputDesc->toAudioPortConfig(&patch.sources[1]); 560 patch.num_sources = 2; 561 } 562 563 afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 564 status = mpClientInterface->createAudioPatch(&patch, &afPatchHandle, 0); 565 ALOGW_IF(status != NO_ERROR, "setPhoneState() error %d creating TX audio patch", 566 status); 567 if (status == NO_ERROR) { 568 mCallTxPatch = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 569 &patch, mUidCached); 570 mCallTxPatch->mAfPatchHandle = afPatchHandle; 571 mCallTxPatch->mUid = mUidCached; 572 } 573 } 574} 575 576void AudioPolicyManager::setPhoneState(audio_mode_t state) 577{ 578 ALOGV("setPhoneState() state %d", state); 579 if (state < 0 || state >= AUDIO_MODE_CNT) { 580 ALOGW("setPhoneState() invalid state %d", state); 581 return; 582 } 583 584 if (state == mPhoneState ) { 585 ALOGW("setPhoneState() setting same state %d", state); 586 return; 587 } 588 589 // if leaving call state, handle special case of active streams 590 // pertaining to sonification strategy see handleIncallSonification() 591 if (isInCall()) { 592 ALOGV("setPhoneState() in call state management: new state is %d", state); 593 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 594 if (stream == AUDIO_STREAM_PATCH) { 595 continue; 596 } 597 handleIncallSonification((audio_stream_type_t)stream, false, true); 598 } 599 600 // force reevaluating accessibility routing when call starts 601 mpClientInterface->invalidateStream(AUDIO_STREAM_ACCESSIBILITY); 602 } 603 604 // store previous phone state for management of sonification strategy below 605 int oldState = mPhoneState; 606 mPhoneState = state; 607 bool force = false; 608 609 // are we entering or starting a call 610 if (!isStateInCall(oldState) && isStateInCall(state)) { 611 ALOGV(" Entering call in setPhoneState()"); 612 // force routing command to audio hardware when starting a call 613 // even if no device change is needed 614 force = true; 615 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 616 mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] = 617 sVolumeProfiles[AUDIO_STREAM_VOICE_CALL][j]; 618 } 619 } else if (isStateInCall(oldState) && !isStateInCall(state)) { 620 ALOGV(" Exiting call in setPhoneState()"); 621 // force routing command to audio hardware when exiting a call 622 // even if no device change is needed 623 force = true; 624 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 625 mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] = 626 sVolumeProfiles[AUDIO_STREAM_DTMF][j]; 627 } 628 } else if (isStateInCall(state) && (state != oldState)) { 629 ALOGV(" Switching between telephony and VoIP in setPhoneState()"); 630 // force routing command to audio hardware when switching between telephony and VoIP 631 // even if no device change is needed 632 force = true; 633 } 634 635 // check for device and output changes triggered by new phone state 636 checkA2dpSuspend(); 637 checkOutputForAllStrategies(); 638 updateDevicesAndOutputs(); 639 640 sp<AudioOutputDescriptor> hwOutputDesc = mOutputs.valueFor(mPrimaryOutput); 641 642 int delayMs = 0; 643 if (isStateInCall(state)) { 644 nsecs_t sysTime = systemTime(); 645 for (size_t i = 0; i < mOutputs.size(); i++) { 646 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 647 // mute media and sonification strategies and delay device switch by the largest 648 // latency of any output where either strategy is active. 649 // This avoid sending the ring tone or music tail into the earpiece or headset. 650 if ((desc->isStrategyActive(STRATEGY_MEDIA, 651 SONIFICATION_HEADSET_MUSIC_DELAY, 652 sysTime) || 653 desc->isStrategyActive(STRATEGY_SONIFICATION, 654 SONIFICATION_HEADSET_MUSIC_DELAY, 655 sysTime)) && 656 (delayMs < (int)desc->mLatency*2)) { 657 delayMs = desc->mLatency*2; 658 } 659 setStrategyMute(STRATEGY_MEDIA, true, mOutputs.keyAt(i)); 660 setStrategyMute(STRATEGY_MEDIA, false, mOutputs.keyAt(i), MUTE_TIME_MS, 661 getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/)); 662 setStrategyMute(STRATEGY_SONIFICATION, true, mOutputs.keyAt(i)); 663 setStrategyMute(STRATEGY_SONIFICATION, false, mOutputs.keyAt(i), MUTE_TIME_MS, 664 getDeviceForStrategy(STRATEGY_SONIFICATION, true /*fromCache*/)); 665 } 666 } 667 668 // Note that despite the fact that getNewOutputDevice() is called on the primary output, 669 // the device returned is not necessarily reachable via this output 670 audio_devices_t rxDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 671 // force routing command to audio hardware when ending call 672 // even if no device change is needed 673 if (isStateInCall(oldState) && rxDevice == AUDIO_DEVICE_NONE) { 674 rxDevice = hwOutputDesc->device(); 675 } 676 677 if (state == AUDIO_MODE_IN_CALL) { 678 updateCallRouting(rxDevice, delayMs); 679 } else if (oldState == AUDIO_MODE_IN_CALL) { 680 if (mCallRxPatch != 0) { 681 mpClientInterface->releaseAudioPatch(mCallRxPatch->mAfPatchHandle, 0); 682 mCallRxPatch.clear(); 683 } 684 if (mCallTxPatch != 0) { 685 mpClientInterface->releaseAudioPatch(mCallTxPatch->mAfPatchHandle, 0); 686 mCallTxPatch.clear(); 687 } 688 setOutputDevice(mPrimaryOutput, rxDevice, force, 0); 689 } else { 690 setOutputDevice(mPrimaryOutput, rxDevice, force, 0); 691 } 692 // if entering in call state, handle special case of active streams 693 // pertaining to sonification strategy see handleIncallSonification() 694 if (isStateInCall(state)) { 695 ALOGV("setPhoneState() in call state management: new state is %d", state); 696 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 697 if (stream == AUDIO_STREAM_PATCH) { 698 continue; 699 } 700 handleIncallSonification((audio_stream_type_t)stream, true, true); 701 } 702 } 703 704 // Flag that ringtone volume must be limited to music volume until we exit MODE_RINGTONE 705 if (state == AUDIO_MODE_RINGTONE && 706 isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY)) { 707 mLimitRingtoneVolume = true; 708 } else { 709 mLimitRingtoneVolume = false; 710 } 711} 712 713void AudioPolicyManager::setForceUse(audio_policy_force_use_t usage, 714 audio_policy_forced_cfg_t config) 715{ 716 ALOGV("setForceUse() usage %d, config %d, mPhoneState %d", usage, config, mPhoneState); 717 718 bool forceVolumeReeval = false; 719 switch(usage) { 720 case AUDIO_POLICY_FORCE_FOR_COMMUNICATION: 721 if (config != AUDIO_POLICY_FORCE_SPEAKER && config != AUDIO_POLICY_FORCE_BT_SCO && 722 config != AUDIO_POLICY_FORCE_NONE) { 723 ALOGW("setForceUse() invalid config %d for FOR_COMMUNICATION", config); 724 return; 725 } 726 forceVolumeReeval = true; 727 mForceUse[usage] = config; 728 break; 729 case AUDIO_POLICY_FORCE_FOR_MEDIA: 730 if (config != AUDIO_POLICY_FORCE_HEADPHONES && config != AUDIO_POLICY_FORCE_BT_A2DP && 731 config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 732 config != AUDIO_POLICY_FORCE_ANALOG_DOCK && 733 config != AUDIO_POLICY_FORCE_DIGITAL_DOCK && config != AUDIO_POLICY_FORCE_NONE && 734 config != AUDIO_POLICY_FORCE_NO_BT_A2DP && config != AUDIO_POLICY_FORCE_SPEAKER ) { 735 ALOGW("setForceUse() invalid config %d for FOR_MEDIA", config); 736 return; 737 } 738 mForceUse[usage] = config; 739 break; 740 case AUDIO_POLICY_FORCE_FOR_RECORD: 741 if (config != AUDIO_POLICY_FORCE_BT_SCO && config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 742 config != AUDIO_POLICY_FORCE_NONE) { 743 ALOGW("setForceUse() invalid config %d for FOR_RECORD", config); 744 return; 745 } 746 mForceUse[usage] = config; 747 break; 748 case AUDIO_POLICY_FORCE_FOR_DOCK: 749 if (config != AUDIO_POLICY_FORCE_NONE && config != AUDIO_POLICY_FORCE_BT_CAR_DOCK && 750 config != AUDIO_POLICY_FORCE_BT_DESK_DOCK && 751 config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 752 config != AUDIO_POLICY_FORCE_ANALOG_DOCK && 753 config != AUDIO_POLICY_FORCE_DIGITAL_DOCK) { 754 ALOGW("setForceUse() invalid config %d for FOR_DOCK", config); 755 } 756 forceVolumeReeval = true; 757 mForceUse[usage] = config; 758 break; 759 case AUDIO_POLICY_FORCE_FOR_SYSTEM: 760 if (config != AUDIO_POLICY_FORCE_NONE && 761 config != AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) { 762 ALOGW("setForceUse() invalid config %d for FOR_SYSTEM", config); 763 } 764 forceVolumeReeval = true; 765 mForceUse[usage] = config; 766 break; 767 case AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO: 768 if (config != AUDIO_POLICY_FORCE_NONE && 769 config != AUDIO_POLICY_FORCE_HDMI_SYSTEM_AUDIO_ENFORCED) { 770 ALOGW("setForceUse() invalid config %d forHDMI_SYSTEM_AUDIO", config); 771 } 772 mForceUse[usage] = config; 773 break; 774 default: 775 ALOGW("setForceUse() invalid usage %d", usage); 776 break; 777 } 778 779 // check for device and output changes triggered by new force usage 780 checkA2dpSuspend(); 781 checkOutputForAllStrategies(); 782 updateDevicesAndOutputs(); 783 if (mPhoneState == AUDIO_MODE_IN_CALL) { 784 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, true /*fromCache*/); 785 updateCallRouting(newDevice); 786 } 787 for (size_t i = 0; i < mOutputs.size(); i++) { 788 audio_io_handle_t output = mOutputs.keyAt(i); 789 audio_devices_t newDevice = getNewOutputDevice(output, true /*fromCache*/); 790 if ((mPhoneState != AUDIO_MODE_IN_CALL) || (output != mPrimaryOutput)) { 791 setOutputDevice(output, newDevice, (newDevice != AUDIO_DEVICE_NONE)); 792 } 793 if (forceVolumeReeval && (newDevice != AUDIO_DEVICE_NONE)) { 794 applyStreamVolumes(output, newDevice, 0, true); 795 } 796 } 797 798 audio_io_handle_t activeInput = getActiveInput(); 799 if (activeInput != 0) { 800 setInputDevice(activeInput, getNewInputDevice(activeInput)); 801 } 802 803} 804 805audio_policy_forced_cfg_t AudioPolicyManager::getForceUse(audio_policy_force_use_t usage) 806{ 807 return mForceUse[usage]; 808} 809 810void AudioPolicyManager::setSystemProperty(const char* property, const char* value) 811{ 812 ALOGV("setSystemProperty() property %s, value %s", property, value); 813} 814 815// Find a direct output profile compatible with the parameters passed, even if the input flags do 816// not explicitly request a direct output 817sp<AudioPolicyManager::IOProfile> AudioPolicyManager::getProfileForDirectOutput( 818 audio_devices_t device, 819 uint32_t samplingRate, 820 audio_format_t format, 821 audio_channel_mask_t channelMask, 822 audio_output_flags_t flags) 823{ 824 for (size_t i = 0; i < mHwModules.size(); i++) { 825 if (mHwModules[i]->mHandle == 0) { 826 continue; 827 } 828 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) { 829 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 830 bool found = profile->isCompatibleProfile(device, String8(""), samplingRate, 831 NULL /*updatedSamplingRate*/, format, channelMask, 832 flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD ? 833 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD : AUDIO_OUTPUT_FLAG_DIRECT); 834 if (found && (mAvailableOutputDevices.types() & profile->mSupportedDevices.types())) { 835 return profile; 836 } 837 } 838 } 839 return 0; 840} 841 842audio_io_handle_t AudioPolicyManager::getOutput(audio_stream_type_t stream, 843 uint32_t samplingRate, 844 audio_format_t format, 845 audio_channel_mask_t channelMask, 846 audio_output_flags_t flags, 847 const audio_offload_info_t *offloadInfo) 848{ 849 routing_strategy strategy = getStrategy(stream); 850 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 851 ALOGV("getOutput() device %d, stream %d, samplingRate %d, format %x, channelMask %x, flags %x", 852 device, stream, samplingRate, format, channelMask, flags); 853 854 return getOutputForDevice(device, AUDIO_SESSION_ALLOCATE, 855 stream, samplingRate,format, channelMask, 856 flags, offloadInfo); 857} 858 859status_t AudioPolicyManager::getOutputForAttr(const audio_attributes_t *attr, 860 audio_io_handle_t *output, 861 audio_session_t session, 862 audio_stream_type_t *stream, 863 uint32_t samplingRate, 864 audio_format_t format, 865 audio_channel_mask_t channelMask, 866 audio_output_flags_t flags, 867 const audio_offload_info_t *offloadInfo) 868{ 869 audio_attributes_t attributes; 870 if (attr != NULL) { 871 if (!isValidAttributes(attr)) { 872 ALOGE("getOutputForAttr() invalid attributes: usage=%d content=%d flags=0x%x tags=[%s]", 873 attr->usage, attr->content_type, attr->flags, 874 attr->tags); 875 return BAD_VALUE; 876 } 877 attributes = *attr; 878 } else { 879 if (*stream < AUDIO_STREAM_MIN || *stream >= AUDIO_STREAM_PUBLIC_CNT) { 880 ALOGE("getOutputForAttr(): invalid stream type"); 881 return BAD_VALUE; 882 } 883 stream_type_to_audio_attributes(*stream, &attributes); 884 } 885 886 for (size_t i = 0; i < mPolicyMixes.size(); i++) { 887 sp<AudioOutputDescriptor> desc; 888 if (mPolicyMixes[i]->mMix.mMixType == MIX_TYPE_PLAYERS) { 889 for (size_t j = 0; j < mPolicyMixes[i]->mMix.mCriteria.size(); j++) { 890 if ((RULE_MATCH_ATTRIBUTE_USAGE == mPolicyMixes[i]->mMix.mCriteria[j].mRule && 891 mPolicyMixes[i]->mMix.mCriteria[j].mAttr.mUsage == attributes.usage) || 892 (RULE_EXCLUDE_ATTRIBUTE_USAGE == mPolicyMixes[i]->mMix.mCriteria[j].mRule && 893 mPolicyMixes[i]->mMix.mCriteria[j].mAttr.mUsage != attributes.usage)) { 894 desc = mPolicyMixes[i]->mOutput; 895 break; 896 } 897 if (strncmp(attributes.tags, "addr=", strlen("addr=")) == 0 && 898 strncmp(attributes.tags + strlen("addr="), 899 mPolicyMixes[i]->mMix.mRegistrationId.string(), 900 AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - strlen("addr=") - 1) == 0) { 901 desc = mPolicyMixes[i]->mOutput; 902 break; 903 } 904 } 905 } else if (mPolicyMixes[i]->mMix.mMixType == MIX_TYPE_RECORDERS) { 906 if (attributes.usage == AUDIO_USAGE_VIRTUAL_SOURCE && 907 strncmp(attributes.tags, "addr=", strlen("addr=")) == 0 && 908 strncmp(attributes.tags + strlen("addr="), 909 mPolicyMixes[i]->mMix.mRegistrationId.string(), 910 AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - strlen("addr=") - 1) == 0) { 911 desc = mPolicyMixes[i]->mOutput; 912 } 913 } 914 if (desc != 0) { 915 if (!audio_is_linear_pcm(format)) { 916 return BAD_VALUE; 917 } 918 desc->mPolicyMix = &mPolicyMixes[i]->mMix; 919 *stream = streamTypefromAttributesInt(&attributes); 920 *output = desc->mIoHandle; 921 ALOGV("getOutputForAttr() returns output %d", *output); 922 return NO_ERROR; 923 } 924 } 925 if (attributes.usage == AUDIO_USAGE_VIRTUAL_SOURCE) { 926 ALOGW("getOutputForAttr() no policy mix found for usage AUDIO_USAGE_VIRTUAL_SOURCE"); 927 return BAD_VALUE; 928 } 929 930 ALOGV("getOutputForAttr() usage=%d, content=%d, tag=%s flags=%08x", 931 attributes.usage, attributes.content_type, attributes.tags, attributes.flags); 932 933 routing_strategy strategy = (routing_strategy) getStrategyForAttr(&attributes); 934 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 935 936 if ((attributes.flags & AUDIO_FLAG_HW_AV_SYNC) != 0) { 937 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_HW_AV_SYNC); 938 } 939 940 ALOGV("getOutputForAttr() device 0x%x, samplingRate %d, format %x, channelMask %x, flags %x", 941 device, samplingRate, format, channelMask, flags); 942 943 *stream = streamTypefromAttributesInt(&attributes); 944 *output = getOutputForDevice(device, session, *stream, 945 samplingRate, format, channelMask, 946 flags, offloadInfo); 947 if (*output == AUDIO_IO_HANDLE_NONE) { 948 return INVALID_OPERATION; 949 } 950 return NO_ERROR; 951} 952 953audio_io_handle_t AudioPolicyManager::getOutputForDevice( 954 audio_devices_t device, 955 audio_session_t session __unused, 956 audio_stream_type_t stream, 957 uint32_t samplingRate, 958 audio_format_t format, 959 audio_channel_mask_t channelMask, 960 audio_output_flags_t flags, 961 const audio_offload_info_t *offloadInfo) 962{ 963 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 964 uint32_t latency = 0; 965 status_t status; 966 967#ifdef AUDIO_POLICY_TEST 968 if (mCurOutput != 0) { 969 ALOGV("getOutput() test output mCurOutput %d, samplingRate %d, format %d, channelMask %x, mDirectOutput %d", 970 mCurOutput, mTestSamplingRate, mTestFormat, mTestChannels, mDirectOutput); 971 972 if (mTestOutputs[mCurOutput] == 0) { 973 ALOGV("getOutput() opening test output"); 974 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(NULL); 975 outputDesc->mDevice = mTestDevice; 976 outputDesc->mLatency = mTestLatencyMs; 977 outputDesc->mFlags = 978 (audio_output_flags_t)(mDirectOutput ? AUDIO_OUTPUT_FLAG_DIRECT : 0); 979 outputDesc->mRefCount[stream] = 0; 980 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 981 config.sample_rate = mTestSamplingRate; 982 config.channel_mask = mTestChannels; 983 config.format = mTestFormat; 984 if (offloadInfo != NULL) { 985 config.offload_info = *offloadInfo; 986 } 987 status = mpClientInterface->openOutput(0, 988 &mTestOutputs[mCurOutput], 989 &config, 990 &outputDesc->mDevice, 991 String8(""), 992 &outputDesc->mLatency, 993 outputDesc->mFlags); 994 if (status == NO_ERROR) { 995 outputDesc->mSamplingRate = config.sample_rate; 996 outputDesc->mFormat = config.format; 997 outputDesc->mChannelMask = config.channel_mask; 998 AudioParameter outputCmd = AudioParameter(); 999 outputCmd.addInt(String8("set_id"),mCurOutput); 1000 mpClientInterface->setParameters(mTestOutputs[mCurOutput],outputCmd.toString()); 1001 addOutput(mTestOutputs[mCurOutput], outputDesc); 1002 } 1003 } 1004 return mTestOutputs[mCurOutput]; 1005 } 1006#endif //AUDIO_POLICY_TEST 1007 1008 // open a direct output if required by specified parameters 1009 //force direct flag if offload flag is set: offloading implies a direct output stream 1010 // and all common behaviors are driven by checking only the direct flag 1011 // this should normally be set appropriately in the policy configuration file 1012 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1013 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 1014 } 1015 if ((flags & AUDIO_OUTPUT_FLAG_HW_AV_SYNC) != 0) { 1016 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 1017 } 1018 // only allow deep buffering for music stream type 1019 if (stream != AUDIO_STREAM_MUSIC) { 1020 flags = (audio_output_flags_t)(flags &~AUDIO_OUTPUT_FLAG_DEEP_BUFFER); 1021 } 1022 1023 sp<IOProfile> profile; 1024 1025 // skip direct output selection if the request can obviously be attached to a mixed output 1026 // and not explicitly requested 1027 if (((flags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) && 1028 audio_is_linear_pcm(format) && samplingRate <= MAX_MIXER_SAMPLING_RATE && 1029 audio_channel_count_from_out_mask(channelMask) <= 2) { 1030 goto non_direct_output; 1031 } 1032 1033 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 1034 // creating an offloaded track and tearing it down immediately after start when audioflinger 1035 // detects there is an active non offloadable effect. 1036 // FIXME: We should check the audio session here but we do not have it in this context. 1037 // This may prevent offloading in rare situations where effects are left active by apps 1038 // in the background. 1039 1040 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) || 1041 !isNonOffloadableEffectEnabled()) { 1042 profile = getProfileForDirectOutput(device, 1043 samplingRate, 1044 format, 1045 channelMask, 1046 (audio_output_flags_t)flags); 1047 } 1048 1049 if (profile != 0) { 1050 sp<AudioOutputDescriptor> outputDesc = NULL; 1051 1052 for (size_t i = 0; i < mOutputs.size(); i++) { 1053 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1054 if (!desc->isDuplicated() && (profile == desc->mProfile)) { 1055 outputDesc = desc; 1056 // reuse direct output if currently open and configured with same parameters 1057 if ((samplingRate == outputDesc->mSamplingRate) && 1058 (format == outputDesc->mFormat) && 1059 (channelMask == outputDesc->mChannelMask)) { 1060 outputDesc->mDirectOpenCount++; 1061 ALOGV("getOutput() reusing direct output %d", mOutputs.keyAt(i)); 1062 return mOutputs.keyAt(i); 1063 } 1064 } 1065 } 1066 // close direct output if currently open and configured with different parameters 1067 if (outputDesc != NULL) { 1068 closeOutput(outputDesc->mIoHandle); 1069 } 1070 outputDesc = new AudioOutputDescriptor(profile); 1071 outputDesc->mDevice = device; 1072 outputDesc->mLatency = 0; 1073 outputDesc->mFlags =(audio_output_flags_t) (outputDesc->mFlags | flags); 1074 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 1075 config.sample_rate = samplingRate; 1076 config.channel_mask = channelMask; 1077 config.format = format; 1078 if (offloadInfo != NULL) { 1079 config.offload_info = *offloadInfo; 1080 } 1081 status = mpClientInterface->openOutput(profile->mModule->mHandle, 1082 &output, 1083 &config, 1084 &outputDesc->mDevice, 1085 String8(""), 1086 &outputDesc->mLatency, 1087 outputDesc->mFlags); 1088 1089 // only accept an output with the requested parameters 1090 if (status != NO_ERROR || 1091 (samplingRate != 0 && samplingRate != config.sample_rate) || 1092 (format != AUDIO_FORMAT_DEFAULT && format != config.format) || 1093 (channelMask != 0 && channelMask != config.channel_mask)) { 1094 ALOGV("getOutput() failed opening direct output: output %d samplingRate %d %d," 1095 "format %d %d, channelMask %04x %04x", output, samplingRate, 1096 outputDesc->mSamplingRate, format, outputDesc->mFormat, channelMask, 1097 outputDesc->mChannelMask); 1098 if (output != AUDIO_IO_HANDLE_NONE) { 1099 mpClientInterface->closeOutput(output); 1100 } 1101 // fall back to mixer output if possible when the direct output could not be open 1102 if (audio_is_linear_pcm(format) && samplingRate <= MAX_MIXER_SAMPLING_RATE) { 1103 goto non_direct_output; 1104 } 1105 return AUDIO_IO_HANDLE_NONE; 1106 } 1107 outputDesc->mSamplingRate = config.sample_rate; 1108 outputDesc->mChannelMask = config.channel_mask; 1109 outputDesc->mFormat = config.format; 1110 outputDesc->mRefCount[stream] = 0; 1111 outputDesc->mStopTime[stream] = 0; 1112 outputDesc->mDirectOpenCount = 1; 1113 1114 audio_io_handle_t srcOutput = getOutputForEffect(); 1115 addOutput(output, outputDesc); 1116 audio_io_handle_t dstOutput = getOutputForEffect(); 1117 if (dstOutput == output) { 1118 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, srcOutput, dstOutput); 1119 } 1120 mPreviousOutputs = mOutputs; 1121 ALOGV("getOutput() returns new direct output %d", output); 1122 mpClientInterface->onAudioPortListUpdate(); 1123 return output; 1124 } 1125 1126non_direct_output: 1127 1128 // ignoring channel mask due to downmix capability in mixer 1129 1130 // open a non direct output 1131 1132 // for non direct outputs, only PCM is supported 1133 if (audio_is_linear_pcm(format)) { 1134 // get which output is suitable for the specified stream. The actual 1135 // routing change will happen when startOutput() will be called 1136 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(device, mOutputs); 1137 1138 // at this stage we should ignore the DIRECT flag as no direct output could be found earlier 1139 flags = (audio_output_flags_t)(flags & ~AUDIO_OUTPUT_FLAG_DIRECT); 1140 output = selectOutput(outputs, flags, format); 1141 } 1142 ALOGW_IF((output == 0), "getOutput() could not find output for stream %d, samplingRate %d," 1143 "format %d, channels %x, flags %x", stream, samplingRate, format, channelMask, flags); 1144 1145 ALOGV("getOutput() returns output %d", output); 1146 1147 return output; 1148} 1149 1150audio_io_handle_t AudioPolicyManager::selectOutput(const SortedVector<audio_io_handle_t>& outputs, 1151 audio_output_flags_t flags, 1152 audio_format_t format) 1153{ 1154 // select one output among several that provide a path to a particular device or set of 1155 // devices (the list was previously build by getOutputsForDevice()). 1156 // The priority is as follows: 1157 // 1: the output with the highest number of requested policy flags 1158 // 2: the primary output 1159 // 3: the first output in the list 1160 1161 if (outputs.size() == 0) { 1162 return 0; 1163 } 1164 if (outputs.size() == 1) { 1165 return outputs[0]; 1166 } 1167 1168 int maxCommonFlags = 0; 1169 audio_io_handle_t outputFlags = 0; 1170 audio_io_handle_t outputPrimary = 0; 1171 1172 for (size_t i = 0; i < outputs.size(); i++) { 1173 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 1174 if (!outputDesc->isDuplicated()) { 1175 // if a valid format is specified, skip output if not compatible 1176 if (format != AUDIO_FORMAT_INVALID) { 1177 if (outputDesc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 1178 if (format != outputDesc->mFormat) { 1179 continue; 1180 } 1181 } else if (!audio_is_linear_pcm(format)) { 1182 continue; 1183 } 1184 } 1185 1186 int commonFlags = popcount(outputDesc->mProfile->mFlags & flags); 1187 if (commonFlags > maxCommonFlags) { 1188 outputFlags = outputs[i]; 1189 maxCommonFlags = commonFlags; 1190 ALOGV("selectOutput() commonFlags for output %d, %04x", outputs[i], commonFlags); 1191 } 1192 if (outputDesc->mProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 1193 outputPrimary = outputs[i]; 1194 } 1195 } 1196 } 1197 1198 if (outputFlags != 0) { 1199 return outputFlags; 1200 } 1201 if (outputPrimary != 0) { 1202 return outputPrimary; 1203 } 1204 1205 return outputs[0]; 1206} 1207 1208status_t AudioPolicyManager::startOutput(audio_io_handle_t output, 1209 audio_stream_type_t stream, 1210 audio_session_t session) 1211{ 1212 ALOGV("startOutput() output %d, stream %d, session %d", output, stream, session); 1213 ssize_t index = mOutputs.indexOfKey(output); 1214 if (index < 0) { 1215 ALOGW("startOutput() unknown output %d", output); 1216 return BAD_VALUE; 1217 } 1218 1219 // cannot start playback of STREAM_TTS if any other output is being used 1220 uint32_t beaconMuteLatency = 0; 1221 if (stream == AUDIO_STREAM_TTS) { 1222 ALOGV("\t found BEACON stream"); 1223 if (isAnyOutputActive(AUDIO_STREAM_TTS /*streamToIgnore*/)) { 1224 return INVALID_OPERATION; 1225 } else { 1226 beaconMuteLatency = handleEventForBeacon(STARTING_BEACON); 1227 } 1228 } else { 1229 // some playback other than beacon starts 1230 beaconMuteLatency = handleEventForBeacon(STARTING_OUTPUT); 1231 } 1232 1233 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1234 1235 // increment usage count for this stream on the requested output: 1236 // NOTE that the usage count is the same for duplicated output and hardware output which is 1237 // necessary for a correct control of hardware output routing by startOutput() and stopOutput() 1238 outputDesc->changeRefCount(stream, 1); 1239 1240 if (outputDesc->mRefCount[stream] == 1) { 1241 // starting an output being rerouted? 1242 audio_devices_t newDevice; 1243 if (outputDesc->mPolicyMix != NULL) { 1244 newDevice = AUDIO_DEVICE_OUT_REMOTE_SUBMIX; 1245 } else { 1246 newDevice = getNewOutputDevice(output, false /*fromCache*/); 1247 } 1248 routing_strategy strategy = getStrategy(stream); 1249 bool shouldWait = (strategy == STRATEGY_SONIFICATION) || 1250 (strategy == STRATEGY_SONIFICATION_RESPECTFUL) || 1251 (beaconMuteLatency > 0); 1252 uint32_t waitMs = beaconMuteLatency; 1253 bool force = false; 1254 for (size_t i = 0; i < mOutputs.size(); i++) { 1255 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1256 if (desc != outputDesc) { 1257 // force a device change if any other output is managed by the same hw 1258 // module and has a current device selection that differs from selected device. 1259 // In this case, the audio HAL must receive the new device selection so that it can 1260 // change the device currently selected by the other active output. 1261 if (outputDesc->sharesHwModuleWith(desc) && 1262 desc->device() != newDevice) { 1263 force = true; 1264 } 1265 // wait for audio on other active outputs to be presented when starting 1266 // a notification so that audio focus effect can propagate, or that a mute/unmute 1267 // event occurred for beacon 1268 uint32_t latency = desc->latency(); 1269 if (shouldWait && desc->isActive(latency * 2) && (waitMs < latency)) { 1270 waitMs = latency; 1271 } 1272 } 1273 } 1274 uint32_t muteWaitMs = setOutputDevice(output, newDevice, force); 1275 1276 // handle special case for sonification while in call 1277 if (isInCall()) { 1278 handleIncallSonification(stream, true, false); 1279 } 1280 1281 // apply volume rules for current stream and device if necessary 1282 checkAndSetVolume(stream, 1283 mStreams[stream].getVolumeIndex(newDevice), 1284 output, 1285 newDevice); 1286 1287 // update the outputs if starting an output with a stream that can affect notification 1288 // routing 1289 handleNotificationRoutingForStream(stream); 1290 1291 // Automatically enable the remote submix input when output is started on a re routing mix 1292 // of type MIX_TYPE_RECORDERS 1293 if (audio_is_remote_submix_device(newDevice) && outputDesc->mPolicyMix != NULL && 1294 outputDesc->mPolicyMix->mMixType == MIX_TYPE_RECORDERS) { 1295 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 1296 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 1297 outputDesc->mPolicyMix->mRegistrationId); 1298 } 1299 1300 // force reevaluating accessibility routing when ringtone or alarm starts 1301 if (strategy == STRATEGY_SONIFICATION) { 1302 mpClientInterface->invalidateStream(AUDIO_STREAM_ACCESSIBILITY); 1303 } 1304 1305 if (waitMs > muteWaitMs) { 1306 usleep((waitMs - muteWaitMs) * 2 * 1000); 1307 } 1308 } 1309 return NO_ERROR; 1310} 1311 1312 1313status_t AudioPolicyManager::stopOutput(audio_io_handle_t output, 1314 audio_stream_type_t stream, 1315 audio_session_t session) 1316{ 1317 ALOGV("stopOutput() output %d, stream %d, session %d", output, stream, session); 1318 ssize_t index = mOutputs.indexOfKey(output); 1319 if (index < 0) { 1320 ALOGW("stopOutput() unknown output %d", output); 1321 return BAD_VALUE; 1322 } 1323 1324 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1325 1326 // always handle stream stop, check which stream type is stopping 1327 handleEventForBeacon(stream == AUDIO_STREAM_TTS ? STOPPING_BEACON : STOPPING_OUTPUT); 1328 1329 // handle special case for sonification while in call 1330 if (isInCall()) { 1331 handleIncallSonification(stream, false, false); 1332 } 1333 1334 if (outputDesc->mRefCount[stream] > 0) { 1335 // decrement usage count of this stream on the output 1336 outputDesc->changeRefCount(stream, -1); 1337 // store time at which the stream was stopped - see isStreamActive() 1338 if (outputDesc->mRefCount[stream] == 0) { 1339 // Automatically disable the remote submix input when output is stopped on a 1340 // re routing mix of type MIX_TYPE_RECORDERS 1341 if (audio_is_remote_submix_device(outputDesc->mDevice) && 1342 outputDesc->mPolicyMix != NULL && 1343 outputDesc->mPolicyMix->mMixType == MIX_TYPE_RECORDERS) { 1344 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 1345 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 1346 outputDesc->mPolicyMix->mRegistrationId); 1347 } 1348 1349 outputDesc->mStopTime[stream] = systemTime(); 1350 audio_devices_t newDevice = getNewOutputDevice(output, false /*fromCache*/); 1351 // delay the device switch by twice the latency because stopOutput() is executed when 1352 // the track stop() command is received and at that time the audio track buffer can 1353 // still contain data that needs to be drained. The latency only covers the audio HAL 1354 // and kernel buffers. Also the latency does not always include additional delay in the 1355 // audio path (audio DSP, CODEC ...) 1356 setOutputDevice(output, newDevice, false, outputDesc->mLatency*2); 1357 1358 // force restoring the device selection on other active outputs if it differs from the 1359 // one being selected for this output 1360 for (size_t i = 0; i < mOutputs.size(); i++) { 1361 audio_io_handle_t curOutput = mOutputs.keyAt(i); 1362 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1363 if (curOutput != output && 1364 desc->isActive() && 1365 outputDesc->sharesHwModuleWith(desc) && 1366 (newDevice != desc->device())) { 1367 setOutputDevice(curOutput, 1368 getNewOutputDevice(curOutput, false /*fromCache*/), 1369 true, 1370 outputDesc->mLatency*2); 1371 } 1372 } 1373 // update the outputs if stopping one with a stream that can affect notification routing 1374 handleNotificationRoutingForStream(stream); 1375 } 1376 return NO_ERROR; 1377 } else { 1378 ALOGW("stopOutput() refcount is already 0 for output %d", output); 1379 return INVALID_OPERATION; 1380 } 1381} 1382 1383void AudioPolicyManager::releaseOutput(audio_io_handle_t output, 1384 audio_stream_type_t stream __unused, 1385 audio_session_t session __unused) 1386{ 1387 ALOGV("releaseOutput() %d", output); 1388 ssize_t index = mOutputs.indexOfKey(output); 1389 if (index < 0) { 1390 ALOGW("releaseOutput() releasing unknown output %d", output); 1391 return; 1392 } 1393 1394#ifdef AUDIO_POLICY_TEST 1395 int testIndex = testOutputIndex(output); 1396 if (testIndex != 0) { 1397 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1398 if (outputDesc->isActive()) { 1399 mpClientInterface->closeOutput(output); 1400 mOutputs.removeItem(output); 1401 mTestOutputs[testIndex] = 0; 1402 } 1403 return; 1404 } 1405#endif //AUDIO_POLICY_TEST 1406 1407 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(index); 1408 if (desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 1409 if (desc->mDirectOpenCount <= 0) { 1410 ALOGW("releaseOutput() invalid open count %d for output %d", 1411 desc->mDirectOpenCount, output); 1412 return; 1413 } 1414 if (--desc->mDirectOpenCount == 0) { 1415 closeOutput(output); 1416 // If effects where present on the output, audioflinger moved them to the primary 1417 // output by default: move them back to the appropriate output. 1418 audio_io_handle_t dstOutput = getOutputForEffect(); 1419 if (dstOutput != mPrimaryOutput) { 1420 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, mPrimaryOutput, dstOutput); 1421 } 1422 mpClientInterface->onAudioPortListUpdate(); 1423 } 1424 } 1425} 1426 1427 1428status_t AudioPolicyManager::getInputForAttr(const audio_attributes_t *attr, 1429 audio_io_handle_t *input, 1430 audio_session_t session, 1431 uint32_t samplingRate, 1432 audio_format_t format, 1433 audio_channel_mask_t channelMask, 1434 audio_input_flags_t flags, 1435 input_type_t *inputType) 1436{ 1437 ALOGV("getInputForAttr() source %d, samplingRate %d, format %d, channelMask %x," 1438 "session %d, flags %#x", 1439 attr->source, samplingRate, format, channelMask, session, flags); 1440 1441 *input = AUDIO_IO_HANDLE_NONE; 1442 *inputType = API_INPUT_INVALID; 1443 audio_devices_t device; 1444 // handle legacy remote submix case where the address was not always specified 1445 String8 address = String8(""); 1446 bool isSoundTrigger = false; 1447 audio_source_t inputSource = attr->source; 1448 audio_source_t halInputSource; 1449 AudioMix *policyMix = NULL; 1450 1451 if (inputSource == AUDIO_SOURCE_DEFAULT) { 1452 inputSource = AUDIO_SOURCE_MIC; 1453 } 1454 halInputSource = inputSource; 1455 1456 if (inputSource == AUDIO_SOURCE_REMOTE_SUBMIX && 1457 strncmp(attr->tags, "addr=", strlen("addr=")) == 0) { 1458 device = AUDIO_DEVICE_IN_REMOTE_SUBMIX; 1459 address = String8(attr->tags + strlen("addr=")); 1460 ssize_t index = mPolicyMixes.indexOfKey(address); 1461 if (index < 0) { 1462 ALOGW("getInputForAttr() no policy for address %s", address.string()); 1463 return BAD_VALUE; 1464 } 1465 if (mPolicyMixes[index]->mMix.mMixType != MIX_TYPE_PLAYERS) { 1466 ALOGW("getInputForAttr() bad policy mix type for address %s", address.string()); 1467 return BAD_VALUE; 1468 } 1469 policyMix = &mPolicyMixes[index]->mMix; 1470 *inputType = API_INPUT_MIX_EXT_POLICY_REROUTE; 1471 } else { 1472 device = getDeviceAndMixForInputSource(inputSource, &policyMix); 1473 if (device == AUDIO_DEVICE_NONE) { 1474 ALOGW("getInputForAttr() could not find device for source %d", inputSource); 1475 return BAD_VALUE; 1476 } 1477 if (policyMix != NULL) { 1478 address = policyMix->mRegistrationId; 1479 if (policyMix->mMixType == MIX_TYPE_RECORDERS) { 1480 // there is an external policy, but this input is attached to a mix of recorders, 1481 // meaning it receives audio injected into the framework, so the recorder doesn't 1482 // know about it and is therefore considered "legacy" 1483 *inputType = API_INPUT_LEGACY; 1484 } else { 1485 // recording a mix of players defined by an external policy, we're rerouting for 1486 // an external policy 1487 *inputType = API_INPUT_MIX_EXT_POLICY_REROUTE; 1488 } 1489 } else if (audio_is_remote_submix_device(device)) { 1490 address = String8("0"); 1491 *inputType = API_INPUT_MIX_CAPTURE; 1492 } else { 1493 *inputType = API_INPUT_LEGACY; 1494 } 1495 // adapt channel selection to input source 1496 switch (inputSource) { 1497 case AUDIO_SOURCE_VOICE_UPLINK: 1498 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK; 1499 break; 1500 case AUDIO_SOURCE_VOICE_DOWNLINK: 1501 channelMask = AUDIO_CHANNEL_IN_VOICE_DNLINK; 1502 break; 1503 case AUDIO_SOURCE_VOICE_CALL: 1504 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK | AUDIO_CHANNEL_IN_VOICE_DNLINK; 1505 break; 1506 default: 1507 break; 1508 } 1509 if (inputSource == AUDIO_SOURCE_HOTWORD) { 1510 ssize_t index = mSoundTriggerSessions.indexOfKey(session); 1511 if (index >= 0) { 1512 *input = mSoundTriggerSessions.valueFor(session); 1513 isSoundTrigger = true; 1514 flags = (audio_input_flags_t)(flags | AUDIO_INPUT_FLAG_HW_HOTWORD); 1515 ALOGV("SoundTrigger capture on session %d input %d", session, *input); 1516 } else { 1517 halInputSource = AUDIO_SOURCE_VOICE_RECOGNITION; 1518 } 1519 } 1520 } 1521 1522 sp<IOProfile> profile = getInputProfile(device, address, 1523 samplingRate, format, channelMask, 1524 flags); 1525 if (profile == 0) { 1526 //retry without flags 1527 audio_input_flags_t log_flags = flags; 1528 flags = AUDIO_INPUT_FLAG_NONE; 1529 profile = getInputProfile(device, address, 1530 samplingRate, format, channelMask, 1531 flags); 1532 if (profile == 0) { 1533 ALOGW("getInputForAttr() could not find profile for device 0x%X, samplingRate %u," 1534 "format %#x, channelMask 0x%X, flags %#x", 1535 device, samplingRate, format, channelMask, log_flags); 1536 return BAD_VALUE; 1537 } 1538 } 1539 1540 if (profile->mModule->mHandle == 0) { 1541 ALOGE("getInputForAttr(): HW module %s not opened", profile->mModule->mName); 1542 return NO_INIT; 1543 } 1544 1545 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 1546 config.sample_rate = samplingRate; 1547 config.channel_mask = channelMask; 1548 config.format = format; 1549 1550 status_t status = mpClientInterface->openInput(profile->mModule->mHandle, 1551 input, 1552 &config, 1553 &device, 1554 address, 1555 halInputSource, 1556 flags); 1557 1558 // only accept input with the exact requested set of parameters 1559 if (status != NO_ERROR || *input == AUDIO_IO_HANDLE_NONE || 1560 (samplingRate != config.sample_rate) || 1561 (format != config.format) || 1562 (channelMask != config.channel_mask)) { 1563 ALOGW("getInputForAttr() failed opening input: samplingRate %d, format %d, channelMask %x", 1564 samplingRate, format, channelMask); 1565 if (*input != AUDIO_IO_HANDLE_NONE) { 1566 mpClientInterface->closeInput(*input); 1567 } 1568 return BAD_VALUE; 1569 } 1570 1571 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(profile); 1572 inputDesc->mInputSource = inputSource; 1573 inputDesc->mRefCount = 0; 1574 inputDesc->mOpenRefCount = 1; 1575 inputDesc->mSamplingRate = samplingRate; 1576 inputDesc->mFormat = format; 1577 inputDesc->mChannelMask = channelMask; 1578 inputDesc->mDevice = device; 1579 inputDesc->mSessions.add(session); 1580 inputDesc->mIsSoundTrigger = isSoundTrigger; 1581 inputDesc->mPolicyMix = policyMix; 1582 1583 ALOGV("getInputForAttr() returns input type = %d", inputType); 1584 1585 addInput(*input, inputDesc); 1586 mpClientInterface->onAudioPortListUpdate(); 1587 return NO_ERROR; 1588} 1589 1590status_t AudioPolicyManager::startInput(audio_io_handle_t input, 1591 audio_session_t session) 1592{ 1593 ALOGV("startInput() input %d", input); 1594 ssize_t index = mInputs.indexOfKey(input); 1595 if (index < 0) { 1596 ALOGW("startInput() unknown input %d", input); 1597 return BAD_VALUE; 1598 } 1599 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1600 1601 index = inputDesc->mSessions.indexOf(session); 1602 if (index < 0) { 1603 ALOGW("startInput() unknown session %d on input %d", session, input); 1604 return BAD_VALUE; 1605 } 1606 1607 // virtual input devices are compatible with other input devices 1608 if (!isVirtualInputDevice(inputDesc->mDevice)) { 1609 1610 // for a non-virtual input device, check if there is another (non-virtual) active input 1611 audio_io_handle_t activeInput = getActiveInput(); 1612 if (activeInput != 0 && activeInput != input) { 1613 1614 // If the already active input uses AUDIO_SOURCE_HOTWORD then it is closed, 1615 // otherwise the active input continues and the new input cannot be started. 1616 sp<AudioInputDescriptor> activeDesc = mInputs.valueFor(activeInput); 1617 if (activeDesc->mInputSource == AUDIO_SOURCE_HOTWORD) { 1618 ALOGW("startInput(%d) preempting low-priority input %d", input, activeInput); 1619 stopInput(activeInput, activeDesc->mSessions.itemAt(0)); 1620 releaseInput(activeInput, activeDesc->mSessions.itemAt(0)); 1621 } else { 1622 ALOGE("startInput(%d) failed: other input %d already started", input, activeInput); 1623 return INVALID_OPERATION; 1624 } 1625 } 1626 } 1627 1628 if (inputDesc->mRefCount == 0) { 1629 if (activeInputsCount() == 0) { 1630 SoundTrigger::setCaptureState(true); 1631 } 1632 setInputDevice(input, getNewInputDevice(input), true /* force */); 1633 1634 // automatically enable the remote submix output when input is started if not 1635 // used by a policy mix of type MIX_TYPE_RECORDERS 1636 // For remote submix (a virtual device), we open only one input per capture request. 1637 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1638 String8 address = String8(""); 1639 if (inputDesc->mPolicyMix == NULL) { 1640 address = String8("0"); 1641 } else if (inputDesc->mPolicyMix->mMixType == MIX_TYPE_PLAYERS) { 1642 address = inputDesc->mPolicyMix->mRegistrationId; 1643 } 1644 if (address != "") { 1645 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1646 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 1647 address); 1648 } 1649 } 1650 } 1651 1652 ALOGV("AudioPolicyManager::startInput() input source = %d", inputDesc->mInputSource); 1653 1654 inputDesc->mRefCount++; 1655 return NO_ERROR; 1656} 1657 1658status_t AudioPolicyManager::stopInput(audio_io_handle_t input, 1659 audio_session_t session) 1660{ 1661 ALOGV("stopInput() input %d", input); 1662 ssize_t index = mInputs.indexOfKey(input); 1663 if (index < 0) { 1664 ALOGW("stopInput() unknown input %d", input); 1665 return BAD_VALUE; 1666 } 1667 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1668 1669 index = inputDesc->mSessions.indexOf(session); 1670 if (index < 0) { 1671 ALOGW("stopInput() unknown session %d on input %d", session, input); 1672 return BAD_VALUE; 1673 } 1674 1675 if (inputDesc->mRefCount == 0) { 1676 ALOGW("stopInput() input %d already stopped", input); 1677 return INVALID_OPERATION; 1678 } 1679 1680 inputDesc->mRefCount--; 1681 if (inputDesc->mRefCount == 0) { 1682 1683 // automatically disable the remote submix output when input is stopped if not 1684 // used by a policy mix of type MIX_TYPE_RECORDERS 1685 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1686 String8 address = String8(""); 1687 if (inputDesc->mPolicyMix == NULL) { 1688 address = String8("0"); 1689 } else if (inputDesc->mPolicyMix->mMixType == MIX_TYPE_PLAYERS) { 1690 address = inputDesc->mPolicyMix->mRegistrationId; 1691 } 1692 if (address != "") { 1693 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1694 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 1695 address); 1696 } 1697 } 1698 1699 resetInputDevice(input); 1700 1701 if (activeInputsCount() == 0) { 1702 SoundTrigger::setCaptureState(false); 1703 } 1704 } 1705 return NO_ERROR; 1706} 1707 1708void AudioPolicyManager::releaseInput(audio_io_handle_t input, 1709 audio_session_t session) 1710{ 1711 ALOGV("releaseInput() %d", input); 1712 ssize_t index = mInputs.indexOfKey(input); 1713 if (index < 0) { 1714 ALOGW("releaseInput() releasing unknown input %d", input); 1715 return; 1716 } 1717 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1718 ALOG_ASSERT(inputDesc != 0); 1719 1720 index = inputDesc->mSessions.indexOf(session); 1721 if (index < 0) { 1722 ALOGW("releaseInput() unknown session %d on input %d", session, input); 1723 return; 1724 } 1725 inputDesc->mSessions.remove(session); 1726 if (inputDesc->mOpenRefCount == 0) { 1727 ALOGW("releaseInput() invalid open ref count %d", inputDesc->mOpenRefCount); 1728 return; 1729 } 1730 inputDesc->mOpenRefCount--; 1731 if (inputDesc->mOpenRefCount > 0) { 1732 ALOGV("releaseInput() exit > 0"); 1733 return; 1734 } 1735 1736 closeInput(input); 1737 mpClientInterface->onAudioPortListUpdate(); 1738 ALOGV("releaseInput() exit"); 1739} 1740 1741void AudioPolicyManager::closeAllInputs() { 1742 bool patchRemoved = false; 1743 1744 for(size_t input_index = 0; input_index < mInputs.size(); input_index++) { 1745 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(input_index); 1746 ssize_t patch_index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 1747 if (patch_index >= 0) { 1748 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(patch_index); 1749 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 1750 mAudioPatches.removeItemsAt(patch_index); 1751 patchRemoved = true; 1752 } 1753 mpClientInterface->closeInput(mInputs.keyAt(input_index)); 1754 } 1755 mInputs.clear(); 1756 nextAudioPortGeneration(); 1757 1758 if (patchRemoved) { 1759 mpClientInterface->onAudioPatchListUpdate(); 1760 } 1761} 1762 1763void AudioPolicyManager::initStreamVolume(audio_stream_type_t stream, 1764 int indexMin, 1765 int indexMax) 1766{ 1767 ALOGV("initStreamVolume() stream %d, min %d, max %d", stream , indexMin, indexMax); 1768 if (indexMin < 0 || indexMin >= indexMax) { 1769 ALOGW("initStreamVolume() invalid index limits for stream %d, min %d, max %d", stream , indexMin, indexMax); 1770 return; 1771 } 1772 mStreams[stream].mIndexMin = indexMin; 1773 mStreams[stream].mIndexMax = indexMax; 1774 //FIXME: AUDIO_STREAM_ACCESSIBILITY volume follows AUDIO_STREAM_MUSIC for now 1775 if (stream == AUDIO_STREAM_MUSIC) { 1776 mStreams[AUDIO_STREAM_ACCESSIBILITY].mIndexMin = indexMin; 1777 mStreams[AUDIO_STREAM_ACCESSIBILITY].mIndexMax = indexMax; 1778 } 1779} 1780 1781status_t AudioPolicyManager::setStreamVolumeIndex(audio_stream_type_t stream, 1782 int index, 1783 audio_devices_t device) 1784{ 1785 1786 if ((index < mStreams[stream].mIndexMin) || (index > mStreams[stream].mIndexMax)) { 1787 return BAD_VALUE; 1788 } 1789 if (!audio_is_output_device(device)) { 1790 return BAD_VALUE; 1791 } 1792 1793 // Force max volume if stream cannot be muted 1794 if (!mStreams[stream].mCanBeMuted) index = mStreams[stream].mIndexMax; 1795 1796 ALOGV("setStreamVolumeIndex() stream %d, device %04x, index %d", 1797 stream, device, index); 1798 1799 // if device is AUDIO_DEVICE_OUT_DEFAULT set default value and 1800 // clear all device specific values 1801 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1802 mStreams[stream].mIndexCur.clear(); 1803 } 1804 mStreams[stream].mIndexCur.add(device, index); 1805 1806 // update volume on all outputs whose current device is also selected by the same 1807 // strategy as the device specified by the caller 1808 audio_devices_t strategyDevice = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1809 1810 1811 //FIXME: AUDIO_STREAM_ACCESSIBILITY volume follows AUDIO_STREAM_MUSIC for now 1812 audio_devices_t accessibilityDevice = AUDIO_DEVICE_NONE; 1813 if (stream == AUDIO_STREAM_MUSIC) { 1814 mStreams[AUDIO_STREAM_ACCESSIBILITY].mIndexCur.add(device, index); 1815 accessibilityDevice = getDeviceForStrategy(STRATEGY_ACCESSIBILITY, true /*fromCache*/); 1816 } 1817 if ((device != AUDIO_DEVICE_OUT_DEFAULT) && 1818 (device & (strategyDevice | accessibilityDevice)) == 0) { 1819 return NO_ERROR; 1820 } 1821 status_t status = NO_ERROR; 1822 for (size_t i = 0; i < mOutputs.size(); i++) { 1823 audio_devices_t curDevice = 1824 getDeviceForVolume(mOutputs.valueAt(i)->device()); 1825 if ((device == AUDIO_DEVICE_OUT_DEFAULT) || ((curDevice & strategyDevice) != 0)) { 1826 status_t volStatus = checkAndSetVolume(stream, index, mOutputs.keyAt(i), curDevice); 1827 if (volStatus != NO_ERROR) { 1828 status = volStatus; 1829 } 1830 } 1831 if ((device == AUDIO_DEVICE_OUT_DEFAULT) || ((curDevice & accessibilityDevice) != 0)) { 1832 status_t volStatus = checkAndSetVolume(AUDIO_STREAM_ACCESSIBILITY, 1833 index, mOutputs.keyAt(i), curDevice); 1834 } 1835 } 1836 return status; 1837} 1838 1839status_t AudioPolicyManager::getStreamVolumeIndex(audio_stream_type_t stream, 1840 int *index, 1841 audio_devices_t device) 1842{ 1843 if (index == NULL) { 1844 return BAD_VALUE; 1845 } 1846 if (!audio_is_output_device(device)) { 1847 return BAD_VALUE; 1848 } 1849 // if device is AUDIO_DEVICE_OUT_DEFAULT, return volume for device corresponding to 1850 // the strategy the stream belongs to. 1851 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1852 device = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1853 } 1854 device = getDeviceForVolume(device); 1855 1856 *index = mStreams[stream].getVolumeIndex(device); 1857 ALOGV("getStreamVolumeIndex() stream %d device %08x index %d", stream, device, *index); 1858 return NO_ERROR; 1859} 1860 1861audio_io_handle_t AudioPolicyManager::selectOutputForEffects( 1862 const SortedVector<audio_io_handle_t>& outputs) 1863{ 1864 // select one output among several suitable for global effects. 1865 // The priority is as follows: 1866 // 1: An offloaded output. If the effect ends up not being offloadable, 1867 // AudioFlinger will invalidate the track and the offloaded output 1868 // will be closed causing the effect to be moved to a PCM output. 1869 // 2: A deep buffer output 1870 // 3: the first output in the list 1871 1872 if (outputs.size() == 0) { 1873 return 0; 1874 } 1875 1876 audio_io_handle_t outputOffloaded = 0; 1877 audio_io_handle_t outputDeepBuffer = 0; 1878 1879 for (size_t i = 0; i < outputs.size(); i++) { 1880 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 1881 ALOGV("selectOutputForEffects outputs[%zu] flags %x", i, desc->mFlags); 1882 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1883 outputOffloaded = outputs[i]; 1884 } 1885 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) != 0) { 1886 outputDeepBuffer = outputs[i]; 1887 } 1888 } 1889 1890 ALOGV("selectOutputForEffects outputOffloaded %d outputDeepBuffer %d", 1891 outputOffloaded, outputDeepBuffer); 1892 if (outputOffloaded != 0) { 1893 return outputOffloaded; 1894 } 1895 if (outputDeepBuffer != 0) { 1896 return outputDeepBuffer; 1897 } 1898 1899 return outputs[0]; 1900} 1901 1902audio_io_handle_t AudioPolicyManager::getOutputForEffect(const effect_descriptor_t *desc) 1903{ 1904 // apply simple rule where global effects are attached to the same output as MUSIC streams 1905 1906 routing_strategy strategy = getStrategy(AUDIO_STREAM_MUSIC); 1907 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 1908 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(device, mOutputs); 1909 1910 audio_io_handle_t output = selectOutputForEffects(dstOutputs); 1911 ALOGV("getOutputForEffect() got output %d for fx %s flags %x", 1912 output, (desc == NULL) ? "unspecified" : desc->name, (desc == NULL) ? 0 : desc->flags); 1913 1914 return output; 1915} 1916 1917status_t AudioPolicyManager::registerEffect(const effect_descriptor_t *desc, 1918 audio_io_handle_t io, 1919 uint32_t strategy, 1920 int session, 1921 int id) 1922{ 1923 ssize_t index = mOutputs.indexOfKey(io); 1924 if (index < 0) { 1925 index = mInputs.indexOfKey(io); 1926 if (index < 0) { 1927 ALOGW("registerEffect() unknown io %d", io); 1928 return INVALID_OPERATION; 1929 } 1930 } 1931 1932 if (mTotalEffectsMemory + desc->memoryUsage > getMaxEffectsMemory()) { 1933 ALOGW("registerEffect() memory limit exceeded for Fx %s, Memory %d KB", 1934 desc->name, desc->memoryUsage); 1935 return INVALID_OPERATION; 1936 } 1937 mTotalEffectsMemory += desc->memoryUsage; 1938 ALOGV("registerEffect() effect %s, io %d, strategy %d session %d id %d", 1939 desc->name, io, strategy, session, id); 1940 ALOGV("registerEffect() memory %d, total memory %d", desc->memoryUsage, mTotalEffectsMemory); 1941 1942 sp<EffectDescriptor> effectDesc = new EffectDescriptor(); 1943 memcpy (&effectDesc->mDesc, desc, sizeof(effect_descriptor_t)); 1944 effectDesc->mIo = io; 1945 effectDesc->mStrategy = (routing_strategy)strategy; 1946 effectDesc->mSession = session; 1947 effectDesc->mEnabled = false; 1948 1949 mEffects.add(id, effectDesc); 1950 1951 return NO_ERROR; 1952} 1953 1954status_t AudioPolicyManager::unregisterEffect(int id) 1955{ 1956 ssize_t index = mEffects.indexOfKey(id); 1957 if (index < 0) { 1958 ALOGW("unregisterEffect() unknown effect ID %d", id); 1959 return INVALID_OPERATION; 1960 } 1961 1962 sp<EffectDescriptor> effectDesc = mEffects.valueAt(index); 1963 1964 setEffectEnabled(effectDesc, false); 1965 1966 if (mTotalEffectsMemory < effectDesc->mDesc.memoryUsage) { 1967 ALOGW("unregisterEffect() memory %d too big for total %d", 1968 effectDesc->mDesc.memoryUsage, mTotalEffectsMemory); 1969 effectDesc->mDesc.memoryUsage = mTotalEffectsMemory; 1970 } 1971 mTotalEffectsMemory -= effectDesc->mDesc.memoryUsage; 1972 ALOGV("unregisterEffect() effect %s, ID %d, memory %d total memory %d", 1973 effectDesc->mDesc.name, id, effectDesc->mDesc.memoryUsage, mTotalEffectsMemory); 1974 1975 mEffects.removeItem(id); 1976 1977 return NO_ERROR; 1978} 1979 1980status_t AudioPolicyManager::setEffectEnabled(int id, bool enabled) 1981{ 1982 ssize_t index = mEffects.indexOfKey(id); 1983 if (index < 0) { 1984 ALOGW("unregisterEffect() unknown effect ID %d", id); 1985 return INVALID_OPERATION; 1986 } 1987 1988 return setEffectEnabled(mEffects.valueAt(index), enabled); 1989} 1990 1991status_t AudioPolicyManager::setEffectEnabled(const sp<EffectDescriptor>& effectDesc, bool enabled) 1992{ 1993 if (enabled == effectDesc->mEnabled) { 1994 ALOGV("setEffectEnabled(%s) effect already %s", 1995 enabled?"true":"false", enabled?"enabled":"disabled"); 1996 return INVALID_OPERATION; 1997 } 1998 1999 if (enabled) { 2000 if (mTotalEffectsCpuLoad + effectDesc->mDesc.cpuLoad > getMaxEffectsCpuLoad()) { 2001 ALOGW("setEffectEnabled(true) CPU Load limit exceeded for Fx %s, CPU %f MIPS", 2002 effectDesc->mDesc.name, (float)effectDesc->mDesc.cpuLoad/10); 2003 return INVALID_OPERATION; 2004 } 2005 mTotalEffectsCpuLoad += effectDesc->mDesc.cpuLoad; 2006 ALOGV("setEffectEnabled(true) total CPU %d", mTotalEffectsCpuLoad); 2007 } else { 2008 if (mTotalEffectsCpuLoad < effectDesc->mDesc.cpuLoad) { 2009 ALOGW("setEffectEnabled(false) CPU load %d too high for total %d", 2010 effectDesc->mDesc.cpuLoad, mTotalEffectsCpuLoad); 2011 effectDesc->mDesc.cpuLoad = mTotalEffectsCpuLoad; 2012 } 2013 mTotalEffectsCpuLoad -= effectDesc->mDesc.cpuLoad; 2014 ALOGV("setEffectEnabled(false) total CPU %d", mTotalEffectsCpuLoad); 2015 } 2016 effectDesc->mEnabled = enabled; 2017 return NO_ERROR; 2018} 2019 2020bool AudioPolicyManager::isNonOffloadableEffectEnabled() 2021{ 2022 for (size_t i = 0; i < mEffects.size(); i++) { 2023 sp<EffectDescriptor> effectDesc = mEffects.valueAt(i); 2024 if (effectDesc->mEnabled && (effectDesc->mStrategy == STRATEGY_MEDIA) && 2025 ((effectDesc->mDesc.flags & EFFECT_FLAG_OFFLOAD_SUPPORTED) == 0)) { 2026 ALOGV("isNonOffloadableEffectEnabled() non offloadable effect %s enabled on session %d", 2027 effectDesc->mDesc.name, effectDesc->mSession); 2028 return true; 2029 } 2030 } 2031 return false; 2032} 2033 2034bool AudioPolicyManager::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const 2035{ 2036 nsecs_t sysTime = systemTime(); 2037 for (size_t i = 0; i < mOutputs.size(); i++) { 2038 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 2039 if (outputDesc->isStreamActive(stream, inPastMs, sysTime)) { 2040 return true; 2041 } 2042 } 2043 return false; 2044} 2045 2046bool AudioPolicyManager::isStreamActiveRemotely(audio_stream_type_t stream, 2047 uint32_t inPastMs) const 2048{ 2049 nsecs_t sysTime = systemTime(); 2050 for (size_t i = 0; i < mOutputs.size(); i++) { 2051 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 2052 if (((outputDesc->device() & APM_AUDIO_OUT_DEVICE_REMOTE_ALL) != 0) && 2053 outputDesc->isStreamActive(stream, inPastMs, sysTime)) { 2054 // do not consider re routing (when the output is going to a dynamic policy) 2055 // as "remote playback" 2056 if (outputDesc->mPolicyMix == NULL) { 2057 return true; 2058 } 2059 } 2060 } 2061 return false; 2062} 2063 2064bool AudioPolicyManager::isSourceActive(audio_source_t source) const 2065{ 2066 for (size_t i = 0; i < mInputs.size(); i++) { 2067 const sp<AudioInputDescriptor> inputDescriptor = mInputs.valueAt(i); 2068 if (inputDescriptor->mRefCount == 0) { 2069 continue; 2070 } 2071 if (inputDescriptor->mInputSource == (int)source) { 2072 return true; 2073 } 2074 // AUDIO_SOURCE_HOTWORD is equivalent to AUDIO_SOURCE_VOICE_RECOGNITION only if it 2075 // corresponds to an active capture triggered by a hardware hotword recognition 2076 if ((source == AUDIO_SOURCE_VOICE_RECOGNITION) && 2077 (inputDescriptor->mInputSource == AUDIO_SOURCE_HOTWORD)) { 2078 // FIXME: we should not assume that the first session is the active one and keep 2079 // activity count per session. Same in startInput(). 2080 ssize_t index = mSoundTriggerSessions.indexOfKey(inputDescriptor->mSessions.itemAt(0)); 2081 if (index >= 0) { 2082 return true; 2083 } 2084 } 2085 } 2086 return false; 2087} 2088 2089// Register a list of custom mixes with their attributes and format. 2090// When a mix is registered, corresponding input and output profiles are 2091// added to the remote submix hw module. The profile contains only the 2092// parameters (sampling rate, format...) specified by the mix. 2093// The corresponding input remote submix device is also connected. 2094// 2095// When a remote submix device is connected, the address is checked to select the 2096// appropriate profile and the corresponding input or output stream is opened. 2097// 2098// When capture starts, getInputForAttr() will: 2099// - 1 look for a mix matching the address passed in attribtutes tags if any 2100// - 2 if none found, getDeviceForInputSource() will: 2101// - 2.1 look for a mix matching the attributes source 2102// - 2.2 if none found, default to device selection by policy rules 2103// At this time, the corresponding output remote submix device is also connected 2104// and active playback use cases can be transferred to this mix if needed when reconnecting 2105// after AudioTracks are invalidated 2106// 2107// When playback starts, getOutputForAttr() will: 2108// - 1 look for a mix matching the address passed in attribtutes tags if any 2109// - 2 if none found, look for a mix matching the attributes usage 2110// - 3 if none found, default to device and output selection by policy rules. 2111 2112status_t AudioPolicyManager::registerPolicyMixes(Vector<AudioMix> mixes) 2113{ 2114 sp<HwModule> module; 2115 for (size_t i = 0; i < mHwModules.size(); i++) { 2116 if (strcmp(AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX, mHwModules[i]->mName) == 0 && 2117 mHwModules[i]->mHandle != 0) { 2118 module = mHwModules[i]; 2119 break; 2120 } 2121 } 2122 2123 if (module == 0) { 2124 return INVALID_OPERATION; 2125 } 2126 2127 ALOGV("registerPolicyMixes() num mixes %d", mixes.size()); 2128 2129 for (size_t i = 0; i < mixes.size(); i++) { 2130 String8 address = mixes[i].mRegistrationId; 2131 ssize_t index = mPolicyMixes.indexOfKey(address); 2132 if (index >= 0) { 2133 ALOGE("registerPolicyMixes(): mix for address %s already registered", address.string()); 2134 continue; 2135 } 2136 audio_config_t outputConfig = mixes[i].mFormat; 2137 audio_config_t inputConfig = mixes[i].mFormat; 2138 // NOTE: audio flinger mixer does not support mono output: configure remote submix HAL in 2139 // stereo and let audio flinger do the channel conversion if needed. 2140 outputConfig.channel_mask = AUDIO_CHANNEL_OUT_STEREO; 2141 inputConfig.channel_mask = AUDIO_CHANNEL_IN_STEREO; 2142 module->addOutputProfile(address, &outputConfig, 2143 AUDIO_DEVICE_OUT_REMOTE_SUBMIX, address); 2144 module->addInputProfile(address, &inputConfig, 2145 AUDIO_DEVICE_IN_REMOTE_SUBMIX, address); 2146 sp<AudioPolicyMix> policyMix = new AudioPolicyMix(); 2147 policyMix->mMix = mixes[i]; 2148 mPolicyMixes.add(address, policyMix); 2149 if (mixes[i].mMixType == MIX_TYPE_PLAYERS) { 2150 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 2151 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 2152 address.string()); 2153 } else { 2154 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 2155 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, 2156 address.string()); 2157 } 2158 } 2159 return NO_ERROR; 2160} 2161 2162status_t AudioPolicyManager::unregisterPolicyMixes(Vector<AudioMix> mixes) 2163{ 2164 sp<HwModule> module; 2165 for (size_t i = 0; i < mHwModules.size(); i++) { 2166 if (strcmp(AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX, mHwModules[i]->mName) == 0 && 2167 mHwModules[i]->mHandle != 0) { 2168 module = mHwModules[i]; 2169 break; 2170 } 2171 } 2172 2173 if (module == 0) { 2174 return INVALID_OPERATION; 2175 } 2176 2177 ALOGV("unregisterPolicyMixes() num mixes %d", mixes.size()); 2178 2179 for (size_t i = 0; i < mixes.size(); i++) { 2180 String8 address = mixes[i].mRegistrationId; 2181 ssize_t index = mPolicyMixes.indexOfKey(address); 2182 if (index < 0) { 2183 ALOGE("unregisterPolicyMixes(): mix for address %s not registered", address.string()); 2184 continue; 2185 } 2186 2187 mPolicyMixes.removeItemsAt(index); 2188 2189 if (getDeviceConnectionState(AUDIO_DEVICE_IN_REMOTE_SUBMIX, address.string()) == 2190 AUDIO_POLICY_DEVICE_STATE_AVAILABLE) 2191 { 2192 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX, 2193 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 2194 address.string()); 2195 } 2196 2197 if (getDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, address.string()) == 2198 AUDIO_POLICY_DEVICE_STATE_AVAILABLE) 2199 { 2200 setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 2201 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, 2202 address.string()); 2203 } 2204 module->removeOutputProfile(address); 2205 module->removeInputProfile(address); 2206 } 2207 return NO_ERROR; 2208} 2209 2210 2211status_t AudioPolicyManager::dump(int fd) 2212{ 2213 const size_t SIZE = 256; 2214 char buffer[SIZE]; 2215 String8 result; 2216 2217 snprintf(buffer, SIZE, "\nAudioPolicyManager Dump: %p\n", this); 2218 result.append(buffer); 2219 2220 snprintf(buffer, SIZE, " Primary Output: %d\n", mPrimaryOutput); 2221 result.append(buffer); 2222 snprintf(buffer, SIZE, " Phone state: %d\n", mPhoneState); 2223 result.append(buffer); 2224 snprintf(buffer, SIZE, " Force use for communications %d\n", 2225 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]); 2226 result.append(buffer); 2227 snprintf(buffer, SIZE, " Force use for media %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA]); 2228 result.append(buffer); 2229 snprintf(buffer, SIZE, " Force use for record %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD]); 2230 result.append(buffer); 2231 snprintf(buffer, SIZE, " Force use for dock %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK]); 2232 result.append(buffer); 2233 snprintf(buffer, SIZE, " Force use for system %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM]); 2234 result.append(buffer); 2235 snprintf(buffer, SIZE, " Force use for hdmi system audio %d\n", 2236 mForceUse[AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO]); 2237 result.append(buffer); 2238 2239 snprintf(buffer, SIZE, " Available output devices:\n"); 2240 result.append(buffer); 2241 write(fd, result.string(), result.size()); 2242 for (size_t i = 0; i < mAvailableOutputDevices.size(); i++) { 2243 mAvailableOutputDevices[i]->dump(fd, 2, i); 2244 } 2245 snprintf(buffer, SIZE, "\n Available input devices:\n"); 2246 write(fd, buffer, strlen(buffer)); 2247 for (size_t i = 0; i < mAvailableInputDevices.size(); i++) { 2248 mAvailableInputDevices[i]->dump(fd, 2, i); 2249 } 2250 2251 snprintf(buffer, SIZE, "\nHW Modules dump:\n"); 2252 write(fd, buffer, strlen(buffer)); 2253 for (size_t i = 0; i < mHwModules.size(); i++) { 2254 snprintf(buffer, SIZE, "- HW Module %zu:\n", i + 1); 2255 write(fd, buffer, strlen(buffer)); 2256 mHwModules[i]->dump(fd); 2257 } 2258 2259 snprintf(buffer, SIZE, "\nOutputs dump:\n"); 2260 write(fd, buffer, strlen(buffer)); 2261 for (size_t i = 0; i < mOutputs.size(); i++) { 2262 snprintf(buffer, SIZE, "- Output %d dump:\n", mOutputs.keyAt(i)); 2263 write(fd, buffer, strlen(buffer)); 2264 mOutputs.valueAt(i)->dump(fd); 2265 } 2266 2267 snprintf(buffer, SIZE, "\nInputs dump:\n"); 2268 write(fd, buffer, strlen(buffer)); 2269 for (size_t i = 0; i < mInputs.size(); i++) { 2270 snprintf(buffer, SIZE, "- Input %d dump:\n", mInputs.keyAt(i)); 2271 write(fd, buffer, strlen(buffer)); 2272 mInputs.valueAt(i)->dump(fd); 2273 } 2274 2275 snprintf(buffer, SIZE, "\nStreams dump:\n"); 2276 write(fd, buffer, strlen(buffer)); 2277 snprintf(buffer, SIZE, 2278 " Stream Can be muted Index Min Index Max Index Cur [device : index]...\n"); 2279 write(fd, buffer, strlen(buffer)); 2280 for (size_t i = 0; i < AUDIO_STREAM_CNT; i++) { 2281 snprintf(buffer, SIZE, " %02zu ", i); 2282 write(fd, buffer, strlen(buffer)); 2283 mStreams[i].dump(fd); 2284 } 2285 2286 snprintf(buffer, SIZE, "\nTotal Effects CPU: %f MIPS, Total Effects memory: %d KB\n", 2287 (float)mTotalEffectsCpuLoad/10, mTotalEffectsMemory); 2288 write(fd, buffer, strlen(buffer)); 2289 2290 snprintf(buffer, SIZE, "Registered effects:\n"); 2291 write(fd, buffer, strlen(buffer)); 2292 for (size_t i = 0; i < mEffects.size(); i++) { 2293 snprintf(buffer, SIZE, "- Effect %d dump:\n", mEffects.keyAt(i)); 2294 write(fd, buffer, strlen(buffer)); 2295 mEffects.valueAt(i)->dump(fd); 2296 } 2297 2298 snprintf(buffer, SIZE, "\nAudio Patches:\n"); 2299 write(fd, buffer, strlen(buffer)); 2300 for (size_t i = 0; i < mAudioPatches.size(); i++) { 2301 mAudioPatches[i]->dump(fd, 2, i); 2302 } 2303 2304 return NO_ERROR; 2305} 2306 2307// This function checks for the parameters which can be offloaded. 2308// This can be enhanced depending on the capability of the DSP and policy 2309// of the system. 2310bool AudioPolicyManager::isOffloadSupported(const audio_offload_info_t& offloadInfo) 2311{ 2312 ALOGV("isOffloadSupported: SR=%u, CM=0x%x, Format=0x%x, StreamType=%d," 2313 " BitRate=%u, duration=%" PRId64 " us, has_video=%d", 2314 offloadInfo.sample_rate, offloadInfo.channel_mask, 2315 offloadInfo.format, 2316 offloadInfo.stream_type, offloadInfo.bit_rate, offloadInfo.duration_us, 2317 offloadInfo.has_video); 2318 2319 // Check if offload has been disabled 2320 char propValue[PROPERTY_VALUE_MAX]; 2321 if (property_get("audio.offload.disable", propValue, "0")) { 2322 if (atoi(propValue) != 0) { 2323 ALOGV("offload disabled by audio.offload.disable=%s", propValue ); 2324 return false; 2325 } 2326 } 2327 2328 // Check if stream type is music, then only allow offload as of now. 2329 if (offloadInfo.stream_type != AUDIO_STREAM_MUSIC) 2330 { 2331 ALOGV("isOffloadSupported: stream_type != MUSIC, returning false"); 2332 return false; 2333 } 2334 2335 //TODO: enable audio offloading with video when ready 2336 if (offloadInfo.has_video) 2337 { 2338 ALOGV("isOffloadSupported: has_video == true, returning false"); 2339 return false; 2340 } 2341 2342 //If duration is less than minimum value defined in property, return false 2343 if (property_get("audio.offload.min.duration.secs", propValue, NULL)) { 2344 if (offloadInfo.duration_us < (atoi(propValue) * 1000000 )) { 2345 ALOGV("Offload denied by duration < audio.offload.min.duration.secs(=%s)", propValue); 2346 return false; 2347 } 2348 } else if (offloadInfo.duration_us < OFFLOAD_DEFAULT_MIN_DURATION_SECS * 1000000) { 2349 ALOGV("Offload denied by duration < default min(=%u)", OFFLOAD_DEFAULT_MIN_DURATION_SECS); 2350 return false; 2351 } 2352 2353 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 2354 // creating an offloaded track and tearing it down immediately after start when audioflinger 2355 // detects there is an active non offloadable effect. 2356 // FIXME: We should check the audio session here but we do not have it in this context. 2357 // This may prevent offloading in rare situations where effects are left active by apps 2358 // in the background. 2359 if (isNonOffloadableEffectEnabled()) { 2360 return false; 2361 } 2362 2363 // See if there is a profile to support this. 2364 // AUDIO_DEVICE_NONE 2365 sp<IOProfile> profile = getProfileForDirectOutput(AUDIO_DEVICE_NONE /*ignore device */, 2366 offloadInfo.sample_rate, 2367 offloadInfo.format, 2368 offloadInfo.channel_mask, 2369 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD); 2370 ALOGV("isOffloadSupported() profile %sfound", profile != 0 ? "" : "NOT "); 2371 return (profile != 0); 2372} 2373 2374status_t AudioPolicyManager::listAudioPorts(audio_port_role_t role, 2375 audio_port_type_t type, 2376 unsigned int *num_ports, 2377 struct audio_port *ports, 2378 unsigned int *generation) 2379{ 2380 if (num_ports == NULL || (*num_ports != 0 && ports == NULL) || 2381 generation == NULL) { 2382 return BAD_VALUE; 2383 } 2384 ALOGV("listAudioPorts() role %d type %d num_ports %d ports %p", role, type, *num_ports, ports); 2385 if (ports == NULL) { 2386 *num_ports = 0; 2387 } 2388 2389 size_t portsWritten = 0; 2390 size_t portsMax = *num_ports; 2391 *num_ports = 0; 2392 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_DEVICE) { 2393 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 2394 for (size_t i = 0; 2395 i < mAvailableOutputDevices.size() && portsWritten < portsMax; i++) { 2396 mAvailableOutputDevices[i]->toAudioPort(&ports[portsWritten++]); 2397 } 2398 *num_ports += mAvailableOutputDevices.size(); 2399 } 2400 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 2401 for (size_t i = 0; 2402 i < mAvailableInputDevices.size() && portsWritten < portsMax; i++) { 2403 mAvailableInputDevices[i]->toAudioPort(&ports[portsWritten++]); 2404 } 2405 *num_ports += mAvailableInputDevices.size(); 2406 } 2407 } 2408 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_MIX) { 2409 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 2410 for (size_t i = 0; i < mInputs.size() && portsWritten < portsMax; i++) { 2411 mInputs[i]->toAudioPort(&ports[portsWritten++]); 2412 } 2413 *num_ports += mInputs.size(); 2414 } 2415 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 2416 size_t numOutputs = 0; 2417 for (size_t i = 0; i < mOutputs.size(); i++) { 2418 if (!mOutputs[i]->isDuplicated()) { 2419 numOutputs++; 2420 if (portsWritten < portsMax) { 2421 mOutputs[i]->toAudioPort(&ports[portsWritten++]); 2422 } 2423 } 2424 } 2425 *num_ports += numOutputs; 2426 } 2427 } 2428 *generation = curAudioPortGeneration(); 2429 ALOGV("listAudioPorts() got %zu ports needed %d", portsWritten, *num_ports); 2430 return NO_ERROR; 2431} 2432 2433status_t AudioPolicyManager::getAudioPort(struct audio_port *port __unused) 2434{ 2435 return NO_ERROR; 2436} 2437 2438sp<AudioPolicyManager::AudioOutputDescriptor> AudioPolicyManager::getOutputFromId( 2439 audio_port_handle_t id) const 2440{ 2441 sp<AudioOutputDescriptor> outputDesc = NULL; 2442 for (size_t i = 0; i < mOutputs.size(); i++) { 2443 outputDesc = mOutputs.valueAt(i); 2444 if (outputDesc->mId == id) { 2445 break; 2446 } 2447 } 2448 return outputDesc; 2449} 2450 2451sp<AudioPolicyManager::AudioInputDescriptor> AudioPolicyManager::getInputFromId( 2452 audio_port_handle_t id) const 2453{ 2454 sp<AudioInputDescriptor> inputDesc = NULL; 2455 for (size_t i = 0; i < mInputs.size(); i++) { 2456 inputDesc = mInputs.valueAt(i); 2457 if (inputDesc->mId == id) { 2458 break; 2459 } 2460 } 2461 return inputDesc; 2462} 2463 2464sp <AudioPolicyManager::HwModule> AudioPolicyManager::getModuleForDevice( 2465 audio_devices_t device) const 2466{ 2467 sp <HwModule> module; 2468 2469 for (size_t i = 0; i < mHwModules.size(); i++) { 2470 if (mHwModules[i]->mHandle == 0) { 2471 continue; 2472 } 2473 if (audio_is_output_device(device)) { 2474 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 2475 { 2476 if (mHwModules[i]->mOutputProfiles[j]->mSupportedDevices.types() & device) { 2477 return mHwModules[i]; 2478 } 2479 } 2480 } else { 2481 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) { 2482 if (mHwModules[i]->mInputProfiles[j]->mSupportedDevices.types() & 2483 device & ~AUDIO_DEVICE_BIT_IN) { 2484 return mHwModules[i]; 2485 } 2486 } 2487 } 2488 } 2489 return module; 2490} 2491 2492sp <AudioPolicyManager::HwModule> AudioPolicyManager::getModuleFromName(const char *name) const 2493{ 2494 sp <HwModule> module; 2495 2496 for (size_t i = 0; i < mHwModules.size(); i++) 2497 { 2498 if (strcmp(mHwModules[i]->mName, name) == 0) { 2499 return mHwModules[i]; 2500 } 2501 } 2502 return module; 2503} 2504 2505audio_devices_t AudioPolicyManager::availablePrimaryOutputDevices() 2506{ 2507 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 2508 audio_devices_t devices = outputDesc->mProfile->mSupportedDevices.types(); 2509 return devices & mAvailableOutputDevices.types(); 2510} 2511 2512audio_devices_t AudioPolicyManager::availablePrimaryInputDevices() 2513{ 2514 audio_module_handle_t primaryHandle = 2515 mOutputs.valueFor(mPrimaryOutput)->mProfile->mModule->mHandle; 2516 audio_devices_t devices = AUDIO_DEVICE_NONE; 2517 for (size_t i = 0; i < mAvailableInputDevices.size(); i++) { 2518 if (mAvailableInputDevices[i]->mModule->mHandle == primaryHandle) { 2519 devices |= mAvailableInputDevices[i]->mDeviceType; 2520 } 2521 } 2522 return devices; 2523} 2524 2525status_t AudioPolicyManager::createAudioPatch(const struct audio_patch *patch, 2526 audio_patch_handle_t *handle, 2527 uid_t uid) 2528{ 2529 ALOGV("createAudioPatch()"); 2530 2531 if (handle == NULL || patch == NULL) { 2532 return BAD_VALUE; 2533 } 2534 ALOGV("createAudioPatch() num sources %d num sinks %d", patch->num_sources, patch->num_sinks); 2535 2536 if (patch->num_sources == 0 || patch->num_sources > AUDIO_PATCH_PORTS_MAX || 2537 patch->num_sinks == 0 || patch->num_sinks > AUDIO_PATCH_PORTS_MAX) { 2538 return BAD_VALUE; 2539 } 2540 // only one source per audio patch supported for now 2541 if (patch->num_sources > 1) { 2542 return INVALID_OPERATION; 2543 } 2544 2545 if (patch->sources[0].role != AUDIO_PORT_ROLE_SOURCE) { 2546 return INVALID_OPERATION; 2547 } 2548 for (size_t i = 0; i < patch->num_sinks; i++) { 2549 if (patch->sinks[i].role != AUDIO_PORT_ROLE_SINK) { 2550 return INVALID_OPERATION; 2551 } 2552 } 2553 2554 sp<AudioPatch> patchDesc; 2555 ssize_t index = mAudioPatches.indexOfKey(*handle); 2556 2557 ALOGV("createAudioPatch source id %d role %d type %d", patch->sources[0].id, 2558 patch->sources[0].role, 2559 patch->sources[0].type); 2560#if LOG_NDEBUG == 0 2561 for (size_t i = 0; i < patch->num_sinks; i++) { 2562 ALOGV("createAudioPatch sink %d: id %d role %d type %d", i, patch->sinks[i].id, 2563 patch->sinks[i].role, 2564 patch->sinks[i].type); 2565 } 2566#endif 2567 2568 if (index >= 0) { 2569 patchDesc = mAudioPatches.valueAt(index); 2570 ALOGV("createAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 2571 mUidCached, patchDesc->mUid, uid); 2572 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 2573 return INVALID_OPERATION; 2574 } 2575 } else { 2576 *handle = 0; 2577 } 2578 2579 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 2580 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(patch->sources[0].id); 2581 if (outputDesc == NULL) { 2582 ALOGV("createAudioPatch() output not found for id %d", patch->sources[0].id); 2583 return BAD_VALUE; 2584 } 2585 ALOG_ASSERT(!outputDesc->isDuplicated(),"duplicated output %d in source in ports", 2586 outputDesc->mIoHandle); 2587 if (patchDesc != 0) { 2588 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 2589 ALOGV("createAudioPatch() source id differs for patch current id %d new id %d", 2590 patchDesc->mPatch.sources[0].id, patch->sources[0].id); 2591 return BAD_VALUE; 2592 } 2593 } 2594 DeviceVector devices; 2595 for (size_t i = 0; i < patch->num_sinks; i++) { 2596 // Only support mix to devices connection 2597 // TODO add support for mix to mix connection 2598 if (patch->sinks[i].type != AUDIO_PORT_TYPE_DEVICE) { 2599 ALOGV("createAudioPatch() source mix but sink is not a device"); 2600 return INVALID_OPERATION; 2601 } 2602 sp<DeviceDescriptor> devDesc = 2603 mAvailableOutputDevices.getDeviceFromId(patch->sinks[i].id); 2604 if (devDesc == 0) { 2605 ALOGV("createAudioPatch() out device not found for id %d", patch->sinks[i].id); 2606 return BAD_VALUE; 2607 } 2608 2609 if (!outputDesc->mProfile->isCompatibleProfile(devDesc->mDeviceType, 2610 devDesc->mAddress, 2611 patch->sources[0].sample_rate, 2612 NULL, // updatedSamplingRate 2613 patch->sources[0].format, 2614 patch->sources[0].channel_mask, 2615 AUDIO_OUTPUT_FLAG_NONE /*FIXME*/)) { 2616 ALOGV("createAudioPatch() profile not supported for device %08x", 2617 devDesc->mDeviceType); 2618 return INVALID_OPERATION; 2619 } 2620 devices.add(devDesc); 2621 } 2622 if (devices.size() == 0) { 2623 return INVALID_OPERATION; 2624 } 2625 2626 // TODO: reconfigure output format and channels here 2627 ALOGV("createAudioPatch() setting device %08x on output %d", 2628 devices.types(), outputDesc->mIoHandle); 2629 setOutputDevice(outputDesc->mIoHandle, devices.types(), true, 0, handle); 2630 index = mAudioPatches.indexOfKey(*handle); 2631 if (index >= 0) { 2632 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 2633 ALOGW("createAudioPatch() setOutputDevice() did not reuse the patch provided"); 2634 } 2635 patchDesc = mAudioPatches.valueAt(index); 2636 patchDesc->mUid = uid; 2637 ALOGV("createAudioPatch() success"); 2638 } else { 2639 ALOGW("createAudioPatch() setOutputDevice() failed to create a patch"); 2640 return INVALID_OPERATION; 2641 } 2642 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 2643 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 2644 // input device to input mix connection 2645 // only one sink supported when connecting an input device to a mix 2646 if (patch->num_sinks > 1) { 2647 return INVALID_OPERATION; 2648 } 2649 sp<AudioInputDescriptor> inputDesc = getInputFromId(patch->sinks[0].id); 2650 if (inputDesc == NULL) { 2651 return BAD_VALUE; 2652 } 2653 if (patchDesc != 0) { 2654 if (patchDesc->mPatch.sinks[0].id != patch->sinks[0].id) { 2655 return BAD_VALUE; 2656 } 2657 } 2658 sp<DeviceDescriptor> devDesc = 2659 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 2660 if (devDesc == 0) { 2661 return BAD_VALUE; 2662 } 2663 2664 if (!inputDesc->mProfile->isCompatibleProfile(devDesc->mDeviceType, 2665 devDesc->mAddress, 2666 patch->sinks[0].sample_rate, 2667 NULL, /*updatedSampleRate*/ 2668 patch->sinks[0].format, 2669 patch->sinks[0].channel_mask, 2670 // FIXME for the parameter type, 2671 // and the NONE 2672 (audio_output_flags_t) 2673 AUDIO_INPUT_FLAG_NONE)) { 2674 return INVALID_OPERATION; 2675 } 2676 // TODO: reconfigure output format and channels here 2677 ALOGV("createAudioPatch() setting device %08x on output %d", 2678 devDesc->mDeviceType, inputDesc->mIoHandle); 2679 setInputDevice(inputDesc->mIoHandle, devDesc->mDeviceType, true, handle); 2680 index = mAudioPatches.indexOfKey(*handle); 2681 if (index >= 0) { 2682 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 2683 ALOGW("createAudioPatch() setInputDevice() did not reuse the patch provided"); 2684 } 2685 patchDesc = mAudioPatches.valueAt(index); 2686 patchDesc->mUid = uid; 2687 ALOGV("createAudioPatch() success"); 2688 } else { 2689 ALOGW("createAudioPatch() setInputDevice() failed to create a patch"); 2690 return INVALID_OPERATION; 2691 } 2692 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2693 // device to device connection 2694 if (patchDesc != 0) { 2695 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 2696 return BAD_VALUE; 2697 } 2698 } 2699 sp<DeviceDescriptor> srcDeviceDesc = 2700 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 2701 if (srcDeviceDesc == 0) { 2702 return BAD_VALUE; 2703 } 2704 2705 //update source and sink with our own data as the data passed in the patch may 2706 // be incomplete. 2707 struct audio_patch newPatch = *patch; 2708 srcDeviceDesc->toAudioPortConfig(&newPatch.sources[0], &patch->sources[0]); 2709 2710 for (size_t i = 0; i < patch->num_sinks; i++) { 2711 if (patch->sinks[i].type != AUDIO_PORT_TYPE_DEVICE) { 2712 ALOGV("createAudioPatch() source device but one sink is not a device"); 2713 return INVALID_OPERATION; 2714 } 2715 2716 sp<DeviceDescriptor> sinkDeviceDesc = 2717 mAvailableOutputDevices.getDeviceFromId(patch->sinks[i].id); 2718 if (sinkDeviceDesc == 0) { 2719 return BAD_VALUE; 2720 } 2721 sinkDeviceDesc->toAudioPortConfig(&newPatch.sinks[i], &patch->sinks[i]); 2722 2723 if (srcDeviceDesc->mModule != sinkDeviceDesc->mModule) { 2724 // only one sink supported when connected devices across HW modules 2725 if (patch->num_sinks > 1) { 2726 return INVALID_OPERATION; 2727 } 2728 SortedVector<audio_io_handle_t> outputs = 2729 getOutputsForDevice(sinkDeviceDesc->mDeviceType, 2730 mOutputs); 2731 // if the sink device is reachable via an opened output stream, request to go via 2732 // this output stream by adding a second source to the patch description 2733 audio_io_handle_t output = selectOutput(outputs, 2734 AUDIO_OUTPUT_FLAG_NONE, 2735 AUDIO_FORMAT_INVALID); 2736 if (output != AUDIO_IO_HANDLE_NONE) { 2737 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 2738 if (outputDesc->isDuplicated()) { 2739 return INVALID_OPERATION; 2740 } 2741 outputDesc->toAudioPortConfig(&newPatch.sources[1], &patch->sources[0]); 2742 newPatch.num_sources = 2; 2743 } 2744 } 2745 } 2746 // TODO: check from routing capabilities in config file and other conflicting patches 2747 2748 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 2749 if (index >= 0) { 2750 afPatchHandle = patchDesc->mAfPatchHandle; 2751 } 2752 2753 status_t status = mpClientInterface->createAudioPatch(&newPatch, 2754 &afPatchHandle, 2755 0); 2756 ALOGV("createAudioPatch() patch panel returned %d patchHandle %d", 2757 status, afPatchHandle); 2758 if (status == NO_ERROR) { 2759 if (index < 0) { 2760 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 2761 &newPatch, uid); 2762 addAudioPatch(patchDesc->mHandle, patchDesc); 2763 } else { 2764 patchDesc->mPatch = newPatch; 2765 } 2766 patchDesc->mAfPatchHandle = afPatchHandle; 2767 *handle = patchDesc->mHandle; 2768 nextAudioPortGeneration(); 2769 mpClientInterface->onAudioPatchListUpdate(); 2770 } else { 2771 ALOGW("createAudioPatch() patch panel could not connect device patch, error %d", 2772 status); 2773 return INVALID_OPERATION; 2774 } 2775 } else { 2776 return BAD_VALUE; 2777 } 2778 } else { 2779 return BAD_VALUE; 2780 } 2781 return NO_ERROR; 2782} 2783 2784status_t AudioPolicyManager::releaseAudioPatch(audio_patch_handle_t handle, 2785 uid_t uid) 2786{ 2787 ALOGV("releaseAudioPatch() patch %d", handle); 2788 2789 ssize_t index = mAudioPatches.indexOfKey(handle); 2790 2791 if (index < 0) { 2792 return BAD_VALUE; 2793 } 2794 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 2795 ALOGV("releaseAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 2796 mUidCached, patchDesc->mUid, uid); 2797 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 2798 return INVALID_OPERATION; 2799 } 2800 2801 struct audio_patch *patch = &patchDesc->mPatch; 2802 patchDesc->mUid = mUidCached; 2803 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 2804 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(patch->sources[0].id); 2805 if (outputDesc == NULL) { 2806 ALOGV("releaseAudioPatch() output not found for id %d", patch->sources[0].id); 2807 return BAD_VALUE; 2808 } 2809 2810 setOutputDevice(outputDesc->mIoHandle, 2811 getNewOutputDevice(outputDesc->mIoHandle, true /*fromCache*/), 2812 true, 2813 0, 2814 NULL); 2815 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 2816 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 2817 sp<AudioInputDescriptor> inputDesc = getInputFromId(patch->sinks[0].id); 2818 if (inputDesc == NULL) { 2819 ALOGV("releaseAudioPatch() input not found for id %d", patch->sinks[0].id); 2820 return BAD_VALUE; 2821 } 2822 setInputDevice(inputDesc->mIoHandle, 2823 getNewInputDevice(inputDesc->mIoHandle), 2824 true, 2825 NULL); 2826 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2827 audio_patch_handle_t afPatchHandle = patchDesc->mAfPatchHandle; 2828 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 2829 ALOGV("releaseAudioPatch() patch panel returned %d patchHandle %d", 2830 status, patchDesc->mAfPatchHandle); 2831 removeAudioPatch(patchDesc->mHandle); 2832 nextAudioPortGeneration(); 2833 mpClientInterface->onAudioPatchListUpdate(); 2834 } else { 2835 return BAD_VALUE; 2836 } 2837 } else { 2838 return BAD_VALUE; 2839 } 2840 return NO_ERROR; 2841} 2842 2843status_t AudioPolicyManager::listAudioPatches(unsigned int *num_patches, 2844 struct audio_patch *patches, 2845 unsigned int *generation) 2846{ 2847 if (num_patches == NULL || (*num_patches != 0 && patches == NULL) || 2848 generation == NULL) { 2849 return BAD_VALUE; 2850 } 2851 ALOGV("listAudioPatches() num_patches %d patches %p available patches %zu", 2852 *num_patches, patches, mAudioPatches.size()); 2853 if (patches == NULL) { 2854 *num_patches = 0; 2855 } 2856 2857 size_t patchesWritten = 0; 2858 size_t patchesMax = *num_patches; 2859 for (size_t i = 0; 2860 i < mAudioPatches.size() && patchesWritten < patchesMax; i++) { 2861 patches[patchesWritten] = mAudioPatches[i]->mPatch; 2862 patches[patchesWritten++].id = mAudioPatches[i]->mHandle; 2863 ALOGV("listAudioPatches() patch %zu num_sources %d num_sinks %d", 2864 i, mAudioPatches[i]->mPatch.num_sources, mAudioPatches[i]->mPatch.num_sinks); 2865 } 2866 *num_patches = mAudioPatches.size(); 2867 2868 *generation = curAudioPortGeneration(); 2869 ALOGV("listAudioPatches() got %zu patches needed %d", patchesWritten, *num_patches); 2870 return NO_ERROR; 2871} 2872 2873status_t AudioPolicyManager::setAudioPortConfig(const struct audio_port_config *config) 2874{ 2875 ALOGV("setAudioPortConfig()"); 2876 2877 if (config == NULL) { 2878 return BAD_VALUE; 2879 } 2880 ALOGV("setAudioPortConfig() on port handle %d", config->id); 2881 // Only support gain configuration for now 2882 if (config->config_mask != AUDIO_PORT_CONFIG_GAIN) { 2883 return INVALID_OPERATION; 2884 } 2885 2886 sp<AudioPortConfig> audioPortConfig; 2887 if (config->type == AUDIO_PORT_TYPE_MIX) { 2888 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2889 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(config->id); 2890 if (outputDesc == NULL) { 2891 return BAD_VALUE; 2892 } 2893 ALOG_ASSERT(!outputDesc->isDuplicated(), 2894 "setAudioPortConfig() called on duplicated output %d", 2895 outputDesc->mIoHandle); 2896 audioPortConfig = outputDesc; 2897 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2898 sp<AudioInputDescriptor> inputDesc = getInputFromId(config->id); 2899 if (inputDesc == NULL) { 2900 return BAD_VALUE; 2901 } 2902 audioPortConfig = inputDesc; 2903 } else { 2904 return BAD_VALUE; 2905 } 2906 } else if (config->type == AUDIO_PORT_TYPE_DEVICE) { 2907 sp<DeviceDescriptor> deviceDesc; 2908 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2909 deviceDesc = mAvailableInputDevices.getDeviceFromId(config->id); 2910 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2911 deviceDesc = mAvailableOutputDevices.getDeviceFromId(config->id); 2912 } else { 2913 return BAD_VALUE; 2914 } 2915 if (deviceDesc == NULL) { 2916 return BAD_VALUE; 2917 } 2918 audioPortConfig = deviceDesc; 2919 } else { 2920 return BAD_VALUE; 2921 } 2922 2923 struct audio_port_config backupConfig; 2924 status_t status = audioPortConfig->applyAudioPortConfig(config, &backupConfig); 2925 if (status == NO_ERROR) { 2926 struct audio_port_config newConfig; 2927 audioPortConfig->toAudioPortConfig(&newConfig, config); 2928 status = mpClientInterface->setAudioPortConfig(&newConfig, 0); 2929 } 2930 if (status != NO_ERROR) { 2931 audioPortConfig->applyAudioPortConfig(&backupConfig); 2932 } 2933 2934 return status; 2935} 2936 2937void AudioPolicyManager::clearAudioPatches(uid_t uid) 2938{ 2939 for (ssize_t i = (ssize_t)mAudioPatches.size() - 1; i >= 0; i--) { 2940 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(i); 2941 if (patchDesc->mUid == uid) { 2942 releaseAudioPatch(mAudioPatches.keyAt(i), uid); 2943 } 2944 } 2945} 2946 2947status_t AudioPolicyManager::acquireSoundTriggerSession(audio_session_t *session, 2948 audio_io_handle_t *ioHandle, 2949 audio_devices_t *device) 2950{ 2951 *session = (audio_session_t)mpClientInterface->newAudioUniqueId(); 2952 *ioHandle = (audio_io_handle_t)mpClientInterface->newAudioUniqueId(); 2953 *device = getDeviceAndMixForInputSource(AUDIO_SOURCE_HOTWORD); 2954 2955 mSoundTriggerSessions.add(*session, *ioHandle); 2956 2957 return NO_ERROR; 2958} 2959 2960status_t AudioPolicyManager::releaseSoundTriggerSession(audio_session_t session) 2961{ 2962 ssize_t index = mSoundTriggerSessions.indexOfKey(session); 2963 if (index < 0) { 2964 ALOGW("acquireSoundTriggerSession() session %d not registered", session); 2965 return BAD_VALUE; 2966 } 2967 2968 mSoundTriggerSessions.removeItem(session); 2969 return NO_ERROR; 2970} 2971 2972status_t AudioPolicyManager::addAudioPatch(audio_patch_handle_t handle, 2973 const sp<AudioPatch>& patch) 2974{ 2975 ssize_t index = mAudioPatches.indexOfKey(handle); 2976 2977 if (index >= 0) { 2978 ALOGW("addAudioPatch() patch %d already in", handle); 2979 return ALREADY_EXISTS; 2980 } 2981 mAudioPatches.add(handle, patch); 2982 ALOGV("addAudioPatch() handle %d af handle %d num_sources %d num_sinks %d source handle %d" 2983 "sink handle %d", 2984 handle, patch->mAfPatchHandle, patch->mPatch.num_sources, patch->mPatch.num_sinks, 2985 patch->mPatch.sources[0].id, patch->mPatch.sinks[0].id); 2986 return NO_ERROR; 2987} 2988 2989status_t AudioPolicyManager::removeAudioPatch(audio_patch_handle_t handle) 2990{ 2991 ssize_t index = mAudioPatches.indexOfKey(handle); 2992 2993 if (index < 0) { 2994 ALOGW("removeAudioPatch() patch %d not in", handle); 2995 return ALREADY_EXISTS; 2996 } 2997 ALOGV("removeAudioPatch() handle %d af handle %d", handle, 2998 mAudioPatches.valueAt(index)->mAfPatchHandle); 2999 mAudioPatches.removeItemsAt(index); 3000 return NO_ERROR; 3001} 3002 3003// ---------------------------------------------------------------------------- 3004// AudioPolicyManager 3005// ---------------------------------------------------------------------------- 3006 3007uint32_t AudioPolicyManager::nextUniqueId() 3008{ 3009 return android_atomic_inc(&mNextUniqueId); 3010} 3011 3012uint32_t AudioPolicyManager::nextAudioPortGeneration() 3013{ 3014 return android_atomic_inc(&mAudioPortGeneration); 3015} 3016 3017AudioPolicyManager::AudioPolicyManager(AudioPolicyClientInterface *clientInterface) 3018 : 3019#ifdef AUDIO_POLICY_TEST 3020 Thread(false), 3021#endif //AUDIO_POLICY_TEST 3022 mPrimaryOutput((audio_io_handle_t)0), 3023 mPhoneState(AUDIO_MODE_NORMAL), 3024 mLimitRingtoneVolume(false), mLastVoiceVolume(-1.0f), 3025 mTotalEffectsCpuLoad(0), mTotalEffectsMemory(0), 3026 mA2dpSuspended(false), 3027 mSpeakerDrcEnabled(false), mNextUniqueId(1), 3028 mAudioPortGeneration(1), 3029 mBeaconMuteRefCount(0), 3030 mBeaconPlayingRefCount(0), 3031 mBeaconMuted(false) 3032{ 3033 mUidCached = getuid(); 3034 mpClientInterface = clientInterface; 3035 3036 for (int i = 0; i < AUDIO_POLICY_FORCE_USE_CNT; i++) { 3037 mForceUse[i] = AUDIO_POLICY_FORCE_NONE; 3038 } 3039 3040 mDefaultOutputDevice = new DeviceDescriptor(String8(""), AUDIO_DEVICE_OUT_SPEAKER); 3041 if (loadAudioPolicyConfig(AUDIO_POLICY_VENDOR_CONFIG_FILE) != NO_ERROR) { 3042 if (loadAudioPolicyConfig(AUDIO_POLICY_CONFIG_FILE) != NO_ERROR) { 3043 ALOGE("could not load audio policy configuration file, setting defaults"); 3044 defaultAudioPolicyConfig(); 3045 } 3046 } 3047 // mAvailableOutputDevices and mAvailableInputDevices now contain all attached devices 3048 3049 // must be done after reading the policy 3050 initializeVolumeCurves(); 3051 3052 // open all output streams needed to access attached devices 3053 audio_devices_t outputDeviceTypes = mAvailableOutputDevices.types(); 3054 audio_devices_t inputDeviceTypes = mAvailableInputDevices.types() & ~AUDIO_DEVICE_BIT_IN; 3055 for (size_t i = 0; i < mHwModules.size(); i++) { 3056 mHwModules[i]->mHandle = mpClientInterface->loadHwModule(mHwModules[i]->mName); 3057 if (mHwModules[i]->mHandle == 0) { 3058 ALOGW("could not open HW module %s", mHwModules[i]->mName); 3059 continue; 3060 } 3061 // open all output streams needed to access attached devices 3062 // except for direct output streams that are only opened when they are actually 3063 // required by an app. 3064 // This also validates mAvailableOutputDevices list 3065 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3066 { 3067 const sp<IOProfile> outProfile = mHwModules[i]->mOutputProfiles[j]; 3068 3069 if (outProfile->mSupportedDevices.isEmpty()) { 3070 ALOGW("Output profile contains no device on module %s", mHwModules[i]->mName); 3071 continue; 3072 } 3073 3074 if ((outProfile->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) { 3075 continue; 3076 } 3077 audio_devices_t profileType = outProfile->mSupportedDevices.types(); 3078 if ((profileType & mDefaultOutputDevice->mDeviceType) != AUDIO_DEVICE_NONE) { 3079 profileType = mDefaultOutputDevice->mDeviceType; 3080 } else { 3081 // chose first device present in mSupportedDevices also part of 3082 // outputDeviceTypes 3083 for (size_t k = 0; k < outProfile->mSupportedDevices.size(); k++) { 3084 profileType = outProfile->mSupportedDevices[k]->mDeviceType; 3085 if ((profileType & outputDeviceTypes) != 0) { 3086 break; 3087 } 3088 } 3089 } 3090 if ((profileType & outputDeviceTypes) == 0) { 3091 continue; 3092 } 3093 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(outProfile); 3094 3095 outputDesc->mDevice = profileType; 3096 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3097 config.sample_rate = outputDesc->mSamplingRate; 3098 config.channel_mask = outputDesc->mChannelMask; 3099 config.format = outputDesc->mFormat; 3100 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 3101 status_t status = mpClientInterface->openOutput(outProfile->mModule->mHandle, 3102 &output, 3103 &config, 3104 &outputDesc->mDevice, 3105 String8(""), 3106 &outputDesc->mLatency, 3107 outputDesc->mFlags); 3108 3109 if (status != NO_ERROR) { 3110 ALOGW("Cannot open output stream for device %08x on hw module %s", 3111 outputDesc->mDevice, 3112 mHwModules[i]->mName); 3113 } else { 3114 outputDesc->mSamplingRate = config.sample_rate; 3115 outputDesc->mChannelMask = config.channel_mask; 3116 outputDesc->mFormat = config.format; 3117 3118 for (size_t k = 0; k < outProfile->mSupportedDevices.size(); k++) { 3119 audio_devices_t type = outProfile->mSupportedDevices[k]->mDeviceType; 3120 ssize_t index = 3121 mAvailableOutputDevices.indexOf(outProfile->mSupportedDevices[k]); 3122 // give a valid ID to an attached device once confirmed it is reachable 3123 if ((index >= 0) && (mAvailableOutputDevices[index]->mId == 0)) { 3124 mAvailableOutputDevices[index]->mId = nextUniqueId(); 3125 mAvailableOutputDevices[index]->mModule = mHwModules[i]; 3126 } 3127 } 3128 if (mPrimaryOutput == 0 && 3129 outProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 3130 mPrimaryOutput = output; 3131 } 3132 addOutput(output, outputDesc); 3133 setOutputDevice(output, 3134 outputDesc->mDevice, 3135 true); 3136 } 3137 } 3138 // open input streams needed to access attached devices to validate 3139 // mAvailableInputDevices list 3140 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 3141 { 3142 const sp<IOProfile> inProfile = mHwModules[i]->mInputProfiles[j]; 3143 3144 if (inProfile->mSupportedDevices.isEmpty()) { 3145 ALOGW("Input profile contains no device on module %s", mHwModules[i]->mName); 3146 continue; 3147 } 3148 // chose first device present in mSupportedDevices also part of 3149 // inputDeviceTypes 3150 audio_devices_t profileType = AUDIO_DEVICE_NONE; 3151 for (size_t k = 0; k < inProfile->mSupportedDevices.size(); k++) { 3152 profileType = inProfile->mSupportedDevices[k]->mDeviceType; 3153 if (profileType & inputDeviceTypes) { 3154 break; 3155 } 3156 } 3157 if ((profileType & inputDeviceTypes) == 0) { 3158 continue; 3159 } 3160 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(inProfile); 3161 3162 inputDesc->mInputSource = AUDIO_SOURCE_MIC; 3163 inputDesc->mDevice = profileType; 3164 3165 // find the address 3166 DeviceVector inputDevices = mAvailableInputDevices.getDevicesFromType(profileType); 3167 // the inputs vector must be of size 1, but we don't want to crash here 3168 String8 address = inputDevices.size() > 0 ? inputDevices.itemAt(0)->mAddress 3169 : String8(""); 3170 ALOGV(" for input device 0x%x using address %s", profileType, address.string()); 3171 ALOGE_IF(inputDevices.size() == 0, "Input device list is empty!"); 3172 3173 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3174 config.sample_rate = inputDesc->mSamplingRate; 3175 config.channel_mask = inputDesc->mChannelMask; 3176 config.format = inputDesc->mFormat; 3177 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 3178 status_t status = mpClientInterface->openInput(inProfile->mModule->mHandle, 3179 &input, 3180 &config, 3181 &inputDesc->mDevice, 3182 address, 3183 AUDIO_SOURCE_MIC, 3184 AUDIO_INPUT_FLAG_NONE); 3185 3186 if (status == NO_ERROR) { 3187 for (size_t k = 0; k < inProfile->mSupportedDevices.size(); k++) { 3188 audio_devices_t type = inProfile->mSupportedDevices[k]->mDeviceType; 3189 ssize_t index = 3190 mAvailableInputDevices.indexOf(inProfile->mSupportedDevices[k]); 3191 // give a valid ID to an attached device once confirmed it is reachable 3192 if ((index >= 0) && (mAvailableInputDevices[index]->mId == 0)) { 3193 mAvailableInputDevices[index]->mId = nextUniqueId(); 3194 mAvailableInputDevices[index]->mModule = mHwModules[i]; 3195 } 3196 } 3197 mpClientInterface->closeInput(input); 3198 } else { 3199 ALOGW("Cannot open input stream for device %08x on hw module %s", 3200 inputDesc->mDevice, 3201 mHwModules[i]->mName); 3202 } 3203 } 3204 } 3205 // make sure all attached devices have been allocated a unique ID 3206 for (size_t i = 0; i < mAvailableOutputDevices.size();) { 3207 if (mAvailableOutputDevices[i]->mId == 0) { 3208 ALOGW("Input device %08x unreachable", mAvailableOutputDevices[i]->mDeviceType); 3209 mAvailableOutputDevices.remove(mAvailableOutputDevices[i]); 3210 continue; 3211 } 3212 i++; 3213 } 3214 for (size_t i = 0; i < mAvailableInputDevices.size();) { 3215 if (mAvailableInputDevices[i]->mId == 0) { 3216 ALOGW("Input device %08x unreachable", mAvailableInputDevices[i]->mDeviceType); 3217 mAvailableInputDevices.remove(mAvailableInputDevices[i]); 3218 continue; 3219 } 3220 i++; 3221 } 3222 // make sure default device is reachable 3223 if (mAvailableOutputDevices.indexOf(mDefaultOutputDevice) < 0) { 3224 ALOGE("Default device %08x is unreachable", mDefaultOutputDevice->mDeviceType); 3225 } 3226 3227 ALOGE_IF((mPrimaryOutput == 0), "Failed to open primary output"); 3228 3229 updateDevicesAndOutputs(); 3230 3231#ifdef AUDIO_POLICY_TEST 3232 if (mPrimaryOutput != 0) { 3233 AudioParameter outputCmd = AudioParameter(); 3234 outputCmd.addInt(String8("set_id"), 0); 3235 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 3236 3237 mTestDevice = AUDIO_DEVICE_OUT_SPEAKER; 3238 mTestSamplingRate = 44100; 3239 mTestFormat = AUDIO_FORMAT_PCM_16_BIT; 3240 mTestChannels = AUDIO_CHANNEL_OUT_STEREO; 3241 mTestLatencyMs = 0; 3242 mCurOutput = 0; 3243 mDirectOutput = false; 3244 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 3245 mTestOutputs[i] = 0; 3246 } 3247 3248 const size_t SIZE = 256; 3249 char buffer[SIZE]; 3250 snprintf(buffer, SIZE, "AudioPolicyManagerTest"); 3251 run(buffer, ANDROID_PRIORITY_AUDIO); 3252 } 3253#endif //AUDIO_POLICY_TEST 3254} 3255 3256AudioPolicyManager::~AudioPolicyManager() 3257{ 3258#ifdef AUDIO_POLICY_TEST 3259 exit(); 3260#endif //AUDIO_POLICY_TEST 3261 for (size_t i = 0; i < mOutputs.size(); i++) { 3262 mpClientInterface->closeOutput(mOutputs.keyAt(i)); 3263 } 3264 for (size_t i = 0; i < mInputs.size(); i++) { 3265 mpClientInterface->closeInput(mInputs.keyAt(i)); 3266 } 3267 mAvailableOutputDevices.clear(); 3268 mAvailableInputDevices.clear(); 3269 mOutputs.clear(); 3270 mInputs.clear(); 3271 mHwModules.clear(); 3272} 3273 3274status_t AudioPolicyManager::initCheck() 3275{ 3276 return (mPrimaryOutput == 0) ? NO_INIT : NO_ERROR; 3277} 3278 3279#ifdef AUDIO_POLICY_TEST 3280bool AudioPolicyManager::threadLoop() 3281{ 3282 ALOGV("entering threadLoop()"); 3283 while (!exitPending()) 3284 { 3285 String8 command; 3286 int valueInt; 3287 String8 value; 3288 3289 Mutex::Autolock _l(mLock); 3290 mWaitWorkCV.waitRelative(mLock, milliseconds(50)); 3291 3292 command = mpClientInterface->getParameters(0, String8("test_cmd_policy")); 3293 AudioParameter param = AudioParameter(command); 3294 3295 if (param.getInt(String8("test_cmd_policy"), valueInt) == NO_ERROR && 3296 valueInt != 0) { 3297 ALOGV("Test command %s received", command.string()); 3298 String8 target; 3299 if (param.get(String8("target"), target) != NO_ERROR) { 3300 target = "Manager"; 3301 } 3302 if (param.getInt(String8("test_cmd_policy_output"), valueInt) == NO_ERROR) { 3303 param.remove(String8("test_cmd_policy_output")); 3304 mCurOutput = valueInt; 3305 } 3306 if (param.get(String8("test_cmd_policy_direct"), value) == NO_ERROR) { 3307 param.remove(String8("test_cmd_policy_direct")); 3308 if (value == "false") { 3309 mDirectOutput = false; 3310 } else if (value == "true") { 3311 mDirectOutput = true; 3312 } 3313 } 3314 if (param.getInt(String8("test_cmd_policy_input"), valueInt) == NO_ERROR) { 3315 param.remove(String8("test_cmd_policy_input")); 3316 mTestInput = valueInt; 3317 } 3318 3319 if (param.get(String8("test_cmd_policy_format"), value) == NO_ERROR) { 3320 param.remove(String8("test_cmd_policy_format")); 3321 int format = AUDIO_FORMAT_INVALID; 3322 if (value == "PCM 16 bits") { 3323 format = AUDIO_FORMAT_PCM_16_BIT; 3324 } else if (value == "PCM 8 bits") { 3325 format = AUDIO_FORMAT_PCM_8_BIT; 3326 } else if (value == "Compressed MP3") { 3327 format = AUDIO_FORMAT_MP3; 3328 } 3329 if (format != AUDIO_FORMAT_INVALID) { 3330 if (target == "Manager") { 3331 mTestFormat = format; 3332 } else if (mTestOutputs[mCurOutput] != 0) { 3333 AudioParameter outputParam = AudioParameter(); 3334 outputParam.addInt(String8("format"), format); 3335 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 3336 } 3337 } 3338 } 3339 if (param.get(String8("test_cmd_policy_channels"), value) == NO_ERROR) { 3340 param.remove(String8("test_cmd_policy_channels")); 3341 int channels = 0; 3342 3343 if (value == "Channels Stereo") { 3344 channels = AUDIO_CHANNEL_OUT_STEREO; 3345 } else if (value == "Channels Mono") { 3346 channels = AUDIO_CHANNEL_OUT_MONO; 3347 } 3348 if (channels != 0) { 3349 if (target == "Manager") { 3350 mTestChannels = channels; 3351 } else if (mTestOutputs[mCurOutput] != 0) { 3352 AudioParameter outputParam = AudioParameter(); 3353 outputParam.addInt(String8("channels"), channels); 3354 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 3355 } 3356 } 3357 } 3358 if (param.getInt(String8("test_cmd_policy_sampleRate"), valueInt) == NO_ERROR) { 3359 param.remove(String8("test_cmd_policy_sampleRate")); 3360 if (valueInt >= 0 && valueInt <= 96000) { 3361 int samplingRate = valueInt; 3362 if (target == "Manager") { 3363 mTestSamplingRate = samplingRate; 3364 } else if (mTestOutputs[mCurOutput] != 0) { 3365 AudioParameter outputParam = AudioParameter(); 3366 outputParam.addInt(String8("sampling_rate"), samplingRate); 3367 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 3368 } 3369 } 3370 } 3371 3372 if (param.get(String8("test_cmd_policy_reopen"), value) == NO_ERROR) { 3373 param.remove(String8("test_cmd_policy_reopen")); 3374 3375 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 3376 mpClientInterface->closeOutput(mPrimaryOutput); 3377 3378 audio_module_handle_t moduleHandle = outputDesc->mModule->mHandle; 3379 3380 mOutputs.removeItem(mPrimaryOutput); 3381 3382 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(NULL); 3383 outputDesc->mDevice = AUDIO_DEVICE_OUT_SPEAKER; 3384 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3385 config.sample_rate = outputDesc->mSamplingRate; 3386 config.channel_mask = outputDesc->mChannelMask; 3387 config.format = outputDesc->mFormat; 3388 status_t status = mpClientInterface->openOutput(moduleHandle, 3389 &mPrimaryOutput, 3390 &config, 3391 &outputDesc->mDevice, 3392 String8(""), 3393 &outputDesc->mLatency, 3394 outputDesc->mFlags); 3395 if (status != NO_ERROR) { 3396 ALOGE("Failed to reopen hardware output stream, " 3397 "samplingRate: %d, format %d, channels %d", 3398 outputDesc->mSamplingRate, outputDesc->mFormat, outputDesc->mChannelMask); 3399 } else { 3400 outputDesc->mSamplingRate = config.sample_rate; 3401 outputDesc->mChannelMask = config.channel_mask; 3402 outputDesc->mFormat = config.format; 3403 AudioParameter outputCmd = AudioParameter(); 3404 outputCmd.addInt(String8("set_id"), 0); 3405 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 3406 addOutput(mPrimaryOutput, outputDesc); 3407 } 3408 } 3409 3410 3411 mpClientInterface->setParameters(0, String8("test_cmd_policy=")); 3412 } 3413 } 3414 return false; 3415} 3416 3417void AudioPolicyManager::exit() 3418{ 3419 { 3420 AutoMutex _l(mLock); 3421 requestExit(); 3422 mWaitWorkCV.signal(); 3423 } 3424 requestExitAndWait(); 3425} 3426 3427int AudioPolicyManager::testOutputIndex(audio_io_handle_t output) 3428{ 3429 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 3430 if (output == mTestOutputs[i]) return i; 3431 } 3432 return 0; 3433} 3434#endif //AUDIO_POLICY_TEST 3435 3436// --- 3437 3438void AudioPolicyManager::addOutput(audio_io_handle_t output, sp<AudioOutputDescriptor> outputDesc) 3439{ 3440 outputDesc->mIoHandle = output; 3441 outputDesc->mId = nextUniqueId(); 3442 mOutputs.add(output, outputDesc); 3443 nextAudioPortGeneration(); 3444} 3445 3446void AudioPolicyManager::addInput(audio_io_handle_t input, sp<AudioInputDescriptor> inputDesc) 3447{ 3448 inputDesc->mIoHandle = input; 3449 inputDesc->mId = nextUniqueId(); 3450 mInputs.add(input, inputDesc); 3451 nextAudioPortGeneration(); 3452} 3453 3454void AudioPolicyManager::findIoHandlesByAddress(sp<AudioOutputDescriptor> desc /*in*/, 3455 const audio_devices_t device /*in*/, 3456 const String8 address /*in*/, 3457 SortedVector<audio_io_handle_t>& outputs /*out*/) { 3458 sp<DeviceDescriptor> devDesc = 3459 desc->mProfile->mSupportedDevices.getDevice(device, address); 3460 if (devDesc != 0) { 3461 ALOGV("findIoHandlesByAddress(): adding opened output %d on same address %s", 3462 desc->mIoHandle, address.string()); 3463 outputs.add(desc->mIoHandle); 3464 } 3465} 3466 3467status_t AudioPolicyManager::checkOutputsForDevice(const sp<DeviceDescriptor> devDesc, 3468 audio_policy_dev_state_t state, 3469 SortedVector<audio_io_handle_t>& outputs, 3470 const String8 address) 3471{ 3472 audio_devices_t device = devDesc->mDeviceType; 3473 sp<AudioOutputDescriptor> desc; 3474 // erase all current sample rates, formats and channel masks 3475 devDesc->clearCapabilities(); 3476 3477 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 3478 // first list already open outputs that can be routed to this device 3479 for (size_t i = 0; i < mOutputs.size(); i++) { 3480 desc = mOutputs.valueAt(i); 3481 if (!desc->isDuplicated() && (desc->mProfile->mSupportedDevices.types() & device)) { 3482 if (!deviceDistinguishesOnAddress(device)) { 3483 ALOGV("checkOutputsForDevice(): adding opened output %d", mOutputs.keyAt(i)); 3484 outputs.add(mOutputs.keyAt(i)); 3485 } else { 3486 ALOGV(" checking address match due to device 0x%x", device); 3487 findIoHandlesByAddress(desc, device, address, outputs); 3488 } 3489 } 3490 } 3491 // then look for output profiles that can be routed to this device 3492 SortedVector< sp<IOProfile> > profiles; 3493 for (size_t i = 0; i < mHwModules.size(); i++) 3494 { 3495 if (mHwModules[i]->mHandle == 0) { 3496 continue; 3497 } 3498 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3499 { 3500 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 3501 if (profile->mSupportedDevices.types() & device) { 3502 if (!deviceDistinguishesOnAddress(device) || 3503 address == profile->mSupportedDevices[0]->mAddress) { 3504 profiles.add(profile); 3505 ALOGV("checkOutputsForDevice(): adding profile %zu from module %zu", j, i); 3506 } 3507 } 3508 } 3509 } 3510 3511 ALOGV(" found %d profiles, %d outputs", profiles.size(), outputs.size()); 3512 3513 if (profiles.isEmpty() && outputs.isEmpty()) { 3514 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 3515 return BAD_VALUE; 3516 } 3517 3518 // open outputs for matching profiles if needed. Direct outputs are also opened to 3519 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 3520 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 3521 sp<IOProfile> profile = profiles[profile_index]; 3522 3523 // nothing to do if one output is already opened for this profile 3524 size_t j; 3525 for (j = 0; j < outputs.size(); j++) { 3526 desc = mOutputs.valueFor(outputs.itemAt(j)); 3527 if (!desc->isDuplicated() && desc->mProfile == profile) { 3528 // matching profile: save the sample rates, format and channel masks supported 3529 // by the profile in our device descriptor 3530 devDesc->importAudioPort(profile); 3531 break; 3532 } 3533 } 3534 if (j != outputs.size()) { 3535 continue; 3536 } 3537 3538 ALOGV("opening output for device %08x with params %s profile %p", 3539 device, address.string(), profile.get()); 3540 desc = new AudioOutputDescriptor(profile); 3541 desc->mDevice = device; 3542 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3543 config.sample_rate = desc->mSamplingRate; 3544 config.channel_mask = desc->mChannelMask; 3545 config.format = desc->mFormat; 3546 config.offload_info.sample_rate = desc->mSamplingRate; 3547 config.offload_info.channel_mask = desc->mChannelMask; 3548 config.offload_info.format = desc->mFormat; 3549 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 3550 status_t status = mpClientInterface->openOutput(profile->mModule->mHandle, 3551 &output, 3552 &config, 3553 &desc->mDevice, 3554 address, 3555 &desc->mLatency, 3556 desc->mFlags); 3557 if (status == NO_ERROR) { 3558 desc->mSamplingRate = config.sample_rate; 3559 desc->mChannelMask = config.channel_mask; 3560 desc->mFormat = config.format; 3561 3562 // Here is where the out_set_parameters() for card & device gets called 3563 if (!address.isEmpty()) { 3564 char *param = audio_device_address_to_parameter(device, address); 3565 mpClientInterface->setParameters(output, String8(param)); 3566 free(param); 3567 } 3568 3569 // Here is where we step through and resolve any "dynamic" fields 3570 String8 reply; 3571 char *value; 3572 if (profile->mSamplingRates[0] == 0) { 3573 reply = mpClientInterface->getParameters(output, 3574 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 3575 ALOGV("checkOutputsForDevice() supported sampling rates %s", 3576 reply.string()); 3577 value = strpbrk((char *)reply.string(), "="); 3578 if (value != NULL) { 3579 profile->loadSamplingRates(value + 1); 3580 } 3581 } 3582 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3583 reply = mpClientInterface->getParameters(output, 3584 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 3585 ALOGV("checkOutputsForDevice() supported formats %s", 3586 reply.string()); 3587 value = strpbrk((char *)reply.string(), "="); 3588 if (value != NULL) { 3589 profile->loadFormats(value + 1); 3590 } 3591 } 3592 if (profile->mChannelMasks[0] == 0) { 3593 reply = mpClientInterface->getParameters(output, 3594 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 3595 ALOGV("checkOutputsForDevice() supported channel masks %s", 3596 reply.string()); 3597 value = strpbrk((char *)reply.string(), "="); 3598 if (value != NULL) { 3599 profile->loadOutChannels(value + 1); 3600 } 3601 } 3602 if (((profile->mSamplingRates[0] == 0) && 3603 (profile->mSamplingRates.size() < 2)) || 3604 ((profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) && 3605 (profile->mFormats.size() < 2)) || 3606 ((profile->mChannelMasks[0] == 0) && 3607 (profile->mChannelMasks.size() < 2))) { 3608 ALOGW("checkOutputsForDevice() missing param"); 3609 mpClientInterface->closeOutput(output); 3610 output = AUDIO_IO_HANDLE_NONE; 3611 } else if (profile->mSamplingRates[0] == 0 || profile->mFormats[0] == 0 || 3612 profile->mChannelMasks[0] == 0) { 3613 mpClientInterface->closeOutput(output); 3614 config.sample_rate = profile->pickSamplingRate(); 3615 config.channel_mask = profile->pickChannelMask(); 3616 config.format = profile->pickFormat(); 3617 config.offload_info.sample_rate = config.sample_rate; 3618 config.offload_info.channel_mask = config.channel_mask; 3619 config.offload_info.format = config.format; 3620 status = mpClientInterface->openOutput(profile->mModule->mHandle, 3621 &output, 3622 &config, 3623 &desc->mDevice, 3624 address, 3625 &desc->mLatency, 3626 desc->mFlags); 3627 if (status == NO_ERROR) { 3628 desc->mSamplingRate = config.sample_rate; 3629 desc->mChannelMask = config.channel_mask; 3630 desc->mFormat = config.format; 3631 } else { 3632 output = AUDIO_IO_HANDLE_NONE; 3633 } 3634 } 3635 3636 if (output != AUDIO_IO_HANDLE_NONE) { 3637 addOutput(output, desc); 3638 if (deviceDistinguishesOnAddress(device) && address != "0") { 3639 ssize_t index = mPolicyMixes.indexOfKey(address); 3640 if (index >= 0) { 3641 mPolicyMixes[index]->mOutput = desc; 3642 desc->mPolicyMix = &mPolicyMixes[index]->mMix; 3643 } else { 3644 ALOGE("checkOutputsForDevice() cannot find policy for address %s", 3645 address.string()); 3646 } 3647 } else if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) { 3648 // no duplicated output for direct outputs and 3649 // outputs used by dynamic policy mixes 3650 audio_io_handle_t duplicatedOutput = AUDIO_IO_HANDLE_NONE; 3651 3652 // set initial stream volume for device 3653 applyStreamVolumes(output, device, 0, true); 3654 3655 //TODO: configure audio effect output stage here 3656 3657 // open a duplicating output thread for the new output and the primary output 3658 duplicatedOutput = mpClientInterface->openDuplicateOutput(output, 3659 mPrimaryOutput); 3660 if (duplicatedOutput != AUDIO_IO_HANDLE_NONE) { 3661 // add duplicated output descriptor 3662 sp<AudioOutputDescriptor> dupOutputDesc = 3663 new AudioOutputDescriptor(NULL); 3664 dupOutputDesc->mOutput1 = mOutputs.valueFor(mPrimaryOutput); 3665 dupOutputDesc->mOutput2 = mOutputs.valueFor(output); 3666 dupOutputDesc->mSamplingRate = desc->mSamplingRate; 3667 dupOutputDesc->mFormat = desc->mFormat; 3668 dupOutputDesc->mChannelMask = desc->mChannelMask; 3669 dupOutputDesc->mLatency = desc->mLatency; 3670 addOutput(duplicatedOutput, dupOutputDesc); 3671 applyStreamVolumes(duplicatedOutput, device, 0, true); 3672 } else { 3673 ALOGW("checkOutputsForDevice() could not open dup output for %d and %d", 3674 mPrimaryOutput, output); 3675 mpClientInterface->closeOutput(output); 3676 mOutputs.removeItem(output); 3677 nextAudioPortGeneration(); 3678 output = AUDIO_IO_HANDLE_NONE; 3679 } 3680 } 3681 } 3682 } else { 3683 output = AUDIO_IO_HANDLE_NONE; 3684 } 3685 if (output == AUDIO_IO_HANDLE_NONE) { 3686 ALOGW("checkOutputsForDevice() could not open output for device %x", device); 3687 profiles.removeAt(profile_index); 3688 profile_index--; 3689 } else { 3690 outputs.add(output); 3691 devDesc->importAudioPort(profile); 3692 3693 if (deviceDistinguishesOnAddress(device)) { 3694 ALOGV("checkOutputsForDevice(): setOutputDevice(dev=0x%x, addr=%s)", 3695 device, address.string()); 3696 setOutputDevice(output, device, true/*force*/, 0/*delay*/, 3697 NULL/*patch handle*/, address.string()); 3698 } 3699 ALOGV("checkOutputsForDevice(): adding output %d", output); 3700 } 3701 } 3702 3703 if (profiles.isEmpty()) { 3704 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 3705 return BAD_VALUE; 3706 } 3707 } else { // Disconnect 3708 // check if one opened output is not needed any more after disconnecting one device 3709 for (size_t i = 0; i < mOutputs.size(); i++) { 3710 desc = mOutputs.valueAt(i); 3711 if (!desc->isDuplicated()) { 3712 // exact match on device 3713 if (deviceDistinguishesOnAddress(device) && 3714 (desc->mProfile->mSupportedDevices.types() == device)) { 3715 findIoHandlesByAddress(desc, device, address, outputs); 3716 } else if (!(desc->mProfile->mSupportedDevices.types() 3717 & mAvailableOutputDevices.types())) { 3718 ALOGV("checkOutputsForDevice(): disconnecting adding output %d", 3719 mOutputs.keyAt(i)); 3720 outputs.add(mOutputs.keyAt(i)); 3721 } 3722 } 3723 } 3724 // Clear any profiles associated with the disconnected device. 3725 for (size_t i = 0; i < mHwModules.size(); i++) 3726 { 3727 if (mHwModules[i]->mHandle == 0) { 3728 continue; 3729 } 3730 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3731 { 3732 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 3733 if (profile->mSupportedDevices.types() & device) { 3734 ALOGV("checkOutputsForDevice(): " 3735 "clearing direct output profile %zu on module %zu", j, i); 3736 if (profile->mSamplingRates[0] == 0) { 3737 profile->mSamplingRates.clear(); 3738 profile->mSamplingRates.add(0); 3739 } 3740 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3741 profile->mFormats.clear(); 3742 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 3743 } 3744 if (profile->mChannelMasks[0] == 0) { 3745 profile->mChannelMasks.clear(); 3746 profile->mChannelMasks.add(0); 3747 } 3748 } 3749 } 3750 } 3751 } 3752 return NO_ERROR; 3753} 3754 3755status_t AudioPolicyManager::checkInputsForDevice(audio_devices_t device, 3756 audio_policy_dev_state_t state, 3757 SortedVector<audio_io_handle_t>& inputs, 3758 const String8 address) 3759{ 3760 sp<AudioInputDescriptor> desc; 3761 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 3762 // first list already open inputs that can be routed to this device 3763 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 3764 desc = mInputs.valueAt(input_index); 3765 if (desc->mProfile->mSupportedDevices.types() & (device & ~AUDIO_DEVICE_BIT_IN)) { 3766 ALOGV("checkInputsForDevice(): adding opened input %d", mInputs.keyAt(input_index)); 3767 inputs.add(mInputs.keyAt(input_index)); 3768 } 3769 } 3770 3771 // then look for input profiles that can be routed to this device 3772 SortedVector< sp<IOProfile> > profiles; 3773 for (size_t module_idx = 0; module_idx < mHwModules.size(); module_idx++) 3774 { 3775 if (mHwModules[module_idx]->mHandle == 0) { 3776 continue; 3777 } 3778 for (size_t profile_index = 0; 3779 profile_index < mHwModules[module_idx]->mInputProfiles.size(); 3780 profile_index++) 3781 { 3782 sp<IOProfile> profile = mHwModules[module_idx]->mInputProfiles[profile_index]; 3783 3784 if (profile->mSupportedDevices.types() & (device & ~AUDIO_DEVICE_BIT_IN)) { 3785 if (!deviceDistinguishesOnAddress(device) || 3786 address == profile->mSupportedDevices[0]->mAddress) { 3787 profiles.add(profile); 3788 ALOGV("checkInputsForDevice(): adding profile %zu from module %zu", 3789 profile_index, module_idx); 3790 } 3791 } 3792 } 3793 } 3794 3795 if (profiles.isEmpty() && inputs.isEmpty()) { 3796 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 3797 return BAD_VALUE; 3798 } 3799 3800 // open inputs for matching profiles if needed. Direct inputs are also opened to 3801 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 3802 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 3803 3804 sp<IOProfile> profile = profiles[profile_index]; 3805 // nothing to do if one input is already opened for this profile 3806 size_t input_index; 3807 for (input_index = 0; input_index < mInputs.size(); input_index++) { 3808 desc = mInputs.valueAt(input_index); 3809 if (desc->mProfile == profile) { 3810 break; 3811 } 3812 } 3813 if (input_index != mInputs.size()) { 3814 continue; 3815 } 3816 3817 ALOGV("opening input for device 0x%X with params %s", device, address.string()); 3818 desc = new AudioInputDescriptor(profile); 3819 desc->mDevice = device; 3820 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3821 config.sample_rate = desc->mSamplingRate; 3822 config.channel_mask = desc->mChannelMask; 3823 config.format = desc->mFormat; 3824 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 3825 status_t status = mpClientInterface->openInput(profile->mModule->mHandle, 3826 &input, 3827 &config, 3828 &desc->mDevice, 3829 address, 3830 AUDIO_SOURCE_MIC, 3831 AUDIO_INPUT_FLAG_NONE /*FIXME*/); 3832 3833 if (status == NO_ERROR) { 3834 desc->mSamplingRate = config.sample_rate; 3835 desc->mChannelMask = config.channel_mask; 3836 desc->mFormat = config.format; 3837 3838 if (!address.isEmpty()) { 3839 char *param = audio_device_address_to_parameter(device, address); 3840 mpClientInterface->setParameters(input, String8(param)); 3841 free(param); 3842 } 3843 3844 // Here is where we step through and resolve any "dynamic" fields 3845 String8 reply; 3846 char *value; 3847 if (profile->mSamplingRates[0] == 0) { 3848 reply = mpClientInterface->getParameters(input, 3849 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 3850 ALOGV("checkInputsForDevice() direct input sup sampling rates %s", 3851 reply.string()); 3852 value = strpbrk((char *)reply.string(), "="); 3853 if (value != NULL) { 3854 profile->loadSamplingRates(value + 1); 3855 } 3856 } 3857 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3858 reply = mpClientInterface->getParameters(input, 3859 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 3860 ALOGV("checkInputsForDevice() direct input sup formats %s", reply.string()); 3861 value = strpbrk((char *)reply.string(), "="); 3862 if (value != NULL) { 3863 profile->loadFormats(value + 1); 3864 } 3865 } 3866 if (profile->mChannelMasks[0] == 0) { 3867 reply = mpClientInterface->getParameters(input, 3868 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 3869 ALOGV("checkInputsForDevice() direct input sup channel masks %s", 3870 reply.string()); 3871 value = strpbrk((char *)reply.string(), "="); 3872 if (value != NULL) { 3873 profile->loadInChannels(value + 1); 3874 } 3875 } 3876 if (((profile->mSamplingRates[0] == 0) && (profile->mSamplingRates.size() < 2)) || 3877 ((profile->mFormats[0] == 0) && (profile->mFormats.size() < 2)) || 3878 ((profile->mChannelMasks[0] == 0) && (profile->mChannelMasks.size() < 2))) { 3879 ALOGW("checkInputsForDevice() direct input missing param"); 3880 mpClientInterface->closeInput(input); 3881 input = AUDIO_IO_HANDLE_NONE; 3882 } 3883 3884 if (input != 0) { 3885 addInput(input, desc); 3886 } 3887 } // endif input != 0 3888 3889 if (input == AUDIO_IO_HANDLE_NONE) { 3890 ALOGW("checkInputsForDevice() could not open input for device 0x%X", device); 3891 profiles.removeAt(profile_index); 3892 profile_index--; 3893 } else { 3894 inputs.add(input); 3895 ALOGV("checkInputsForDevice(): adding input %d", input); 3896 } 3897 } // end scan profiles 3898 3899 if (profiles.isEmpty()) { 3900 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 3901 return BAD_VALUE; 3902 } 3903 } else { 3904 // Disconnect 3905 // check if one opened input is not needed any more after disconnecting one device 3906 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 3907 desc = mInputs.valueAt(input_index); 3908 if (!(desc->mProfile->mSupportedDevices.types() & mAvailableInputDevices.types() & 3909 ~AUDIO_DEVICE_BIT_IN)) { 3910 ALOGV("checkInputsForDevice(): disconnecting adding input %d", 3911 mInputs.keyAt(input_index)); 3912 inputs.add(mInputs.keyAt(input_index)); 3913 } 3914 } 3915 // Clear any profiles associated with the disconnected device. 3916 for (size_t module_index = 0; module_index < mHwModules.size(); module_index++) { 3917 if (mHwModules[module_index]->mHandle == 0) { 3918 continue; 3919 } 3920 for (size_t profile_index = 0; 3921 profile_index < mHwModules[module_index]->mInputProfiles.size(); 3922 profile_index++) { 3923 sp<IOProfile> profile = mHwModules[module_index]->mInputProfiles[profile_index]; 3924 if (profile->mSupportedDevices.types() & device & ~AUDIO_DEVICE_BIT_IN) { 3925 ALOGV("checkInputsForDevice(): clearing direct input profile %zu on module %zu", 3926 profile_index, module_index); 3927 if (profile->mSamplingRates[0] == 0) { 3928 profile->mSamplingRates.clear(); 3929 profile->mSamplingRates.add(0); 3930 } 3931 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3932 profile->mFormats.clear(); 3933 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 3934 } 3935 if (profile->mChannelMasks[0] == 0) { 3936 profile->mChannelMasks.clear(); 3937 profile->mChannelMasks.add(0); 3938 } 3939 } 3940 } 3941 } 3942 } // end disconnect 3943 3944 return NO_ERROR; 3945} 3946 3947 3948void AudioPolicyManager::closeOutput(audio_io_handle_t output) 3949{ 3950 ALOGV("closeOutput(%d)", output); 3951 3952 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 3953 if (outputDesc == NULL) { 3954 ALOGW("closeOutput() unknown output %d", output); 3955 return; 3956 } 3957 3958 for (size_t i = 0; i < mPolicyMixes.size(); i++) { 3959 if (mPolicyMixes[i]->mOutput == outputDesc) { 3960 mPolicyMixes[i]->mOutput.clear(); 3961 } 3962 } 3963 3964 // look for duplicated outputs connected to the output being removed. 3965 for (size_t i = 0; i < mOutputs.size(); i++) { 3966 sp<AudioOutputDescriptor> dupOutputDesc = mOutputs.valueAt(i); 3967 if (dupOutputDesc->isDuplicated() && 3968 (dupOutputDesc->mOutput1 == outputDesc || 3969 dupOutputDesc->mOutput2 == outputDesc)) { 3970 sp<AudioOutputDescriptor> outputDesc2; 3971 if (dupOutputDesc->mOutput1 == outputDesc) { 3972 outputDesc2 = dupOutputDesc->mOutput2; 3973 } else { 3974 outputDesc2 = dupOutputDesc->mOutput1; 3975 } 3976 // As all active tracks on duplicated output will be deleted, 3977 // and as they were also referenced on the other output, the reference 3978 // count for their stream type must be adjusted accordingly on 3979 // the other output. 3980 for (int j = 0; j < AUDIO_STREAM_CNT; j++) { 3981 int refCount = dupOutputDesc->mRefCount[j]; 3982 outputDesc2->changeRefCount((audio_stream_type_t)j,-refCount); 3983 } 3984 audio_io_handle_t duplicatedOutput = mOutputs.keyAt(i); 3985 ALOGV("closeOutput() closing also duplicated output %d", duplicatedOutput); 3986 3987 mpClientInterface->closeOutput(duplicatedOutput); 3988 mOutputs.removeItem(duplicatedOutput); 3989 } 3990 } 3991 3992 nextAudioPortGeneration(); 3993 3994 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3995 if (index >= 0) { 3996 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3997 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 3998 mAudioPatches.removeItemsAt(index); 3999 mpClientInterface->onAudioPatchListUpdate(); 4000 } 4001 4002 AudioParameter param; 4003 param.add(String8("closing"), String8("true")); 4004 mpClientInterface->setParameters(output, param.toString()); 4005 4006 mpClientInterface->closeOutput(output); 4007 mOutputs.removeItem(output); 4008 mPreviousOutputs = mOutputs; 4009} 4010 4011void AudioPolicyManager::closeInput(audio_io_handle_t input) 4012{ 4013 ALOGV("closeInput(%d)", input); 4014 4015 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4016 if (inputDesc == NULL) { 4017 ALOGW("closeInput() unknown input %d", input); 4018 return; 4019 } 4020 4021 nextAudioPortGeneration(); 4022 4023 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4024 if (index >= 0) { 4025 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4026 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 4027 mAudioPatches.removeItemsAt(index); 4028 mpClientInterface->onAudioPatchListUpdate(); 4029 } 4030 4031 mpClientInterface->closeInput(input); 4032 mInputs.removeItem(input); 4033} 4034 4035SortedVector<audio_io_handle_t> AudioPolicyManager::getOutputsForDevice(audio_devices_t device, 4036 DefaultKeyedVector<audio_io_handle_t, sp<AudioOutputDescriptor> > openOutputs) 4037{ 4038 SortedVector<audio_io_handle_t> outputs; 4039 4040 ALOGVV("getOutputsForDevice() device %04x", device); 4041 for (size_t i = 0; i < openOutputs.size(); i++) { 4042 ALOGVV("output %d isDuplicated=%d device=%04x", 4043 i, openOutputs.valueAt(i)->isDuplicated(), openOutputs.valueAt(i)->supportedDevices()); 4044 if ((device & openOutputs.valueAt(i)->supportedDevices()) == device) { 4045 ALOGVV("getOutputsForDevice() found output %d", openOutputs.keyAt(i)); 4046 outputs.add(openOutputs.keyAt(i)); 4047 } 4048 } 4049 return outputs; 4050} 4051 4052bool AudioPolicyManager::vectorsEqual(SortedVector<audio_io_handle_t>& outputs1, 4053 SortedVector<audio_io_handle_t>& outputs2) 4054{ 4055 if (outputs1.size() != outputs2.size()) { 4056 return false; 4057 } 4058 for (size_t i = 0; i < outputs1.size(); i++) { 4059 if (outputs1[i] != outputs2[i]) { 4060 return false; 4061 } 4062 } 4063 return true; 4064} 4065 4066void AudioPolicyManager::checkOutputForStrategy(routing_strategy strategy) 4067{ 4068 audio_devices_t oldDevice = getDeviceForStrategy(strategy, true /*fromCache*/); 4069 audio_devices_t newDevice = getDeviceForStrategy(strategy, false /*fromCache*/); 4070 SortedVector<audio_io_handle_t> srcOutputs = getOutputsForDevice(oldDevice, mPreviousOutputs); 4071 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(newDevice, mOutputs); 4072 4073 // also take into account external policy-related changes: add all outputs which are 4074 // associated with policies in the "before" and "after" output vectors 4075 ALOGVV("checkOutputForStrategy(): policy related outputs"); 4076 for (size_t i = 0 ; i < mPreviousOutputs.size() ; i++) { 4077 const sp<AudioOutputDescriptor> desc = mPreviousOutputs.valueAt(i); 4078 if (desc != 0 && desc->mPolicyMix != NULL) { 4079 srcOutputs.add(desc->mIoHandle); 4080 ALOGVV(" previous outputs: adding %d", desc->mIoHandle); 4081 } 4082 } 4083 for (size_t i = 0 ; i < mOutputs.size() ; i++) { 4084 const sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 4085 if (desc != 0 && desc->mPolicyMix != NULL) { 4086 dstOutputs.add(desc->mIoHandle); 4087 ALOGVV(" new outputs: adding %d", desc->mIoHandle); 4088 } 4089 } 4090 4091 if (!vectorsEqual(srcOutputs,dstOutputs)) { 4092 ALOGV("checkOutputForStrategy() strategy %d, moving from output %d to output %d", 4093 strategy, srcOutputs[0], dstOutputs[0]); 4094 // mute strategy while moving tracks from one output to another 4095 for (size_t i = 0; i < srcOutputs.size(); i++) { 4096 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(srcOutputs[i]); 4097 if (desc->isStrategyActive(strategy)) { 4098 setStrategyMute(strategy, true, srcOutputs[i]); 4099 setStrategyMute(strategy, false, srcOutputs[i], MUTE_TIME_MS, newDevice); 4100 } 4101 } 4102 4103 // Move effects associated to this strategy from previous output to new output 4104 if (strategy == STRATEGY_MEDIA) { 4105 audio_io_handle_t fxOutput = selectOutputForEffects(dstOutputs); 4106 SortedVector<audio_io_handle_t> moved; 4107 for (size_t i = 0; i < mEffects.size(); i++) { 4108 sp<EffectDescriptor> effectDesc = mEffects.valueAt(i); 4109 if (effectDesc->mSession == AUDIO_SESSION_OUTPUT_MIX && 4110 effectDesc->mIo != fxOutput) { 4111 if (moved.indexOf(effectDesc->mIo) < 0) { 4112 ALOGV("checkOutputForStrategy() moving effect %d to output %d", 4113 mEffects.keyAt(i), fxOutput); 4114 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, effectDesc->mIo, 4115 fxOutput); 4116 moved.add(effectDesc->mIo); 4117 } 4118 effectDesc->mIo = fxOutput; 4119 } 4120 } 4121 } 4122 // Move tracks associated to this strategy from previous output to new output 4123 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 4124 if (i == AUDIO_STREAM_PATCH) { 4125 continue; 4126 } 4127 if (getStrategy((audio_stream_type_t)i) == strategy) { 4128 mpClientInterface->invalidateStream((audio_stream_type_t)i); 4129 } 4130 } 4131 } 4132} 4133 4134void AudioPolicyManager::checkOutputForAllStrategies() 4135{ 4136 if (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) 4137 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 4138 checkOutputForStrategy(STRATEGY_PHONE); 4139 if (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] != AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) 4140 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 4141 checkOutputForStrategy(STRATEGY_SONIFICATION); 4142 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 4143 checkOutputForStrategy(STRATEGY_ACCESSIBILITY); 4144 checkOutputForStrategy(STRATEGY_MEDIA); 4145 checkOutputForStrategy(STRATEGY_DTMF); 4146 checkOutputForStrategy(STRATEGY_REROUTING); 4147} 4148 4149audio_io_handle_t AudioPolicyManager::getA2dpOutput() 4150{ 4151 for (size_t i = 0; i < mOutputs.size(); i++) { 4152 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 4153 if (!outputDesc->isDuplicated() && outputDesc->device() & AUDIO_DEVICE_OUT_ALL_A2DP) { 4154 return mOutputs.keyAt(i); 4155 } 4156 } 4157 4158 return 0; 4159} 4160 4161void AudioPolicyManager::checkA2dpSuspend() 4162{ 4163 audio_io_handle_t a2dpOutput = getA2dpOutput(); 4164 if (a2dpOutput == 0) { 4165 mA2dpSuspended = false; 4166 return; 4167 } 4168 4169 bool isScoConnected = 4170 ((mAvailableInputDevices.types() & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET & 4171 ~AUDIO_DEVICE_BIT_IN) != 0) || 4172 ((mAvailableOutputDevices.types() & AUDIO_DEVICE_OUT_ALL_SCO) != 0); 4173 // suspend A2DP output if: 4174 // (NOT already suspended) && 4175 // ((SCO device is connected && 4176 // (forced usage for communication || for record is SCO))) || 4177 // (phone state is ringing || in call) 4178 // 4179 // restore A2DP output if: 4180 // (Already suspended) && 4181 // ((SCO device is NOT connected || 4182 // (forced usage NOT for communication && NOT for record is SCO))) && 4183 // (phone state is NOT ringing && NOT in call) 4184 // 4185 if (mA2dpSuspended) { 4186 if ((!isScoConnected || 4187 ((mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] != AUDIO_POLICY_FORCE_BT_SCO) && 4188 (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] != AUDIO_POLICY_FORCE_BT_SCO))) && 4189 ((mPhoneState != AUDIO_MODE_IN_CALL) && 4190 (mPhoneState != AUDIO_MODE_RINGTONE))) { 4191 4192 mpClientInterface->restoreOutput(a2dpOutput); 4193 mA2dpSuspended = false; 4194 } 4195 } else { 4196 if ((isScoConnected && 4197 ((mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO) || 4198 (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO))) || 4199 ((mPhoneState == AUDIO_MODE_IN_CALL) || 4200 (mPhoneState == AUDIO_MODE_RINGTONE))) { 4201 4202 mpClientInterface->suspendOutput(a2dpOutput); 4203 mA2dpSuspended = true; 4204 } 4205 } 4206} 4207 4208audio_devices_t AudioPolicyManager::getNewOutputDevice(audio_io_handle_t output, bool fromCache) 4209{ 4210 audio_devices_t device = AUDIO_DEVICE_NONE; 4211 4212 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4213 4214 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4215 if (index >= 0) { 4216 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4217 if (patchDesc->mUid != mUidCached) { 4218 ALOGV("getNewOutputDevice() device %08x forced by patch %d", 4219 outputDesc->device(), outputDesc->mPatchHandle); 4220 return outputDesc->device(); 4221 } 4222 } 4223 4224 // check the following by order of priority to request a routing change if necessary: 4225 // 1: the strategy enforced audible is active and enforced on the output: 4226 // use device for strategy enforced audible 4227 // 2: we are in call or the strategy phone is active on the output: 4228 // use device for strategy phone 4229 // 3: the strategy for enforced audible is active but not enforced on the output: 4230 // use the device for strategy enforced audible 4231 // 4: the strategy sonification is active on the output: 4232 // use device for strategy sonification 4233 // 5: the strategy "respectful" sonification is active on the output: 4234 // use device for strategy "respectful" sonification 4235 // 6: the strategy accessibility is active on the output: 4236 // use device for strategy accessibility 4237 // 7: the strategy media is active on the output: 4238 // use device for strategy media 4239 // 8: the strategy DTMF is active on the output: 4240 // use device for strategy DTMF 4241 // 9: the strategy for beacon, a.k.a. "transmitted through speaker" is active on the output: 4242 // use device for strategy t-t-s 4243 if (outputDesc->isStrategyActive(STRATEGY_ENFORCED_AUDIBLE) && 4244 mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) { 4245 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 4246 } else if (isInCall() || 4247 outputDesc->isStrategyActive(STRATEGY_PHONE)) { 4248 device = getDeviceForStrategy(STRATEGY_PHONE, fromCache); 4249 } else if (outputDesc->isStrategyActive(STRATEGY_ENFORCED_AUDIBLE)) { 4250 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 4251 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION)) { 4252 device = getDeviceForStrategy(STRATEGY_SONIFICATION, fromCache); 4253 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION_RESPECTFUL)) { 4254 device = getDeviceForStrategy(STRATEGY_SONIFICATION_RESPECTFUL, fromCache); 4255 } else if (outputDesc->isStrategyActive(STRATEGY_ACCESSIBILITY)) { 4256 device = getDeviceForStrategy(STRATEGY_ACCESSIBILITY, fromCache); 4257 } else if (outputDesc->isStrategyActive(STRATEGY_MEDIA)) { 4258 device = getDeviceForStrategy(STRATEGY_MEDIA, fromCache); 4259 } else if (outputDesc->isStrategyActive(STRATEGY_DTMF)) { 4260 device = getDeviceForStrategy(STRATEGY_DTMF, fromCache); 4261 } else if (outputDesc->isStrategyActive(STRATEGY_TRANSMITTED_THROUGH_SPEAKER)) { 4262 device = getDeviceForStrategy(STRATEGY_TRANSMITTED_THROUGH_SPEAKER, fromCache); 4263 } else if (outputDesc->isStrategyActive(STRATEGY_REROUTING)) { 4264 device = getDeviceForStrategy(STRATEGY_REROUTING, fromCache); 4265 } 4266 4267 ALOGV("getNewOutputDevice() selected device %x", device); 4268 return device; 4269} 4270 4271audio_devices_t AudioPolicyManager::getNewInputDevice(audio_io_handle_t input) 4272{ 4273 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4274 4275 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4276 if (index >= 0) { 4277 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4278 if (patchDesc->mUid != mUidCached) { 4279 ALOGV("getNewInputDevice() device %08x forced by patch %d", 4280 inputDesc->mDevice, inputDesc->mPatchHandle); 4281 return inputDesc->mDevice; 4282 } 4283 } 4284 4285 audio_devices_t device = getDeviceAndMixForInputSource(inputDesc->mInputSource); 4286 4287 ALOGV("getNewInputDevice() selected device %x", device); 4288 return device; 4289} 4290 4291uint32_t AudioPolicyManager::getStrategyForStream(audio_stream_type_t stream) { 4292 return (uint32_t)getStrategy(stream); 4293} 4294 4295audio_devices_t AudioPolicyManager::getDevicesForStream(audio_stream_type_t stream) { 4296 // By checking the range of stream before calling getStrategy, we avoid 4297 // getStrategy's behavior for invalid streams. getStrategy would do a ALOGE 4298 // and then return STRATEGY_MEDIA, but we want to return the empty set. 4299 if (stream < (audio_stream_type_t) 0 || stream >= AUDIO_STREAM_PUBLIC_CNT) { 4300 return AUDIO_DEVICE_NONE; 4301 } 4302 audio_devices_t devices; 4303 AudioPolicyManager::routing_strategy strategy = getStrategy(stream); 4304 devices = getDeviceForStrategy(strategy, true /*fromCache*/); 4305 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(devices, mOutputs); 4306 for (size_t i = 0; i < outputs.size(); i++) { 4307 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 4308 if (outputDesc->isStrategyActive(strategy)) { 4309 devices = outputDesc->device(); 4310 break; 4311 } 4312 } 4313 4314 /*Filter SPEAKER_SAFE out of results, as AudioService doesn't know about it 4315 and doesn't really need to.*/ 4316 if (devices & AUDIO_DEVICE_OUT_SPEAKER_SAFE) { 4317 devices |= AUDIO_DEVICE_OUT_SPEAKER; 4318 devices &= ~AUDIO_DEVICE_OUT_SPEAKER_SAFE; 4319 } 4320 4321 return devices; 4322} 4323 4324AudioPolicyManager::routing_strategy AudioPolicyManager::getStrategy( 4325 audio_stream_type_t stream) { 4326 4327 ALOG_ASSERT(stream != AUDIO_STREAM_PATCH,"getStrategy() called for AUDIO_STREAM_PATCH"); 4328 4329 // stream to strategy mapping 4330 switch (stream) { 4331 case AUDIO_STREAM_VOICE_CALL: 4332 case AUDIO_STREAM_BLUETOOTH_SCO: 4333 return STRATEGY_PHONE; 4334 case AUDIO_STREAM_RING: 4335 case AUDIO_STREAM_ALARM: 4336 return STRATEGY_SONIFICATION; 4337 case AUDIO_STREAM_NOTIFICATION: 4338 return STRATEGY_SONIFICATION_RESPECTFUL; 4339 case AUDIO_STREAM_DTMF: 4340 return STRATEGY_DTMF; 4341 default: 4342 ALOGE("unknown stream type %d", stream); 4343 case AUDIO_STREAM_SYSTEM: 4344 // NOTE: SYSTEM stream uses MEDIA strategy because muting music and switching outputs 4345 // while key clicks are played produces a poor result 4346 case AUDIO_STREAM_MUSIC: 4347 return STRATEGY_MEDIA; 4348 case AUDIO_STREAM_ENFORCED_AUDIBLE: 4349 return STRATEGY_ENFORCED_AUDIBLE; 4350 case AUDIO_STREAM_TTS: 4351 return STRATEGY_TRANSMITTED_THROUGH_SPEAKER; 4352 case AUDIO_STREAM_ACCESSIBILITY: 4353 return STRATEGY_ACCESSIBILITY; 4354 case AUDIO_STREAM_REROUTING: 4355 return STRATEGY_REROUTING; 4356 } 4357} 4358 4359uint32_t AudioPolicyManager::getStrategyForAttr(const audio_attributes_t *attr) { 4360 // flags to strategy mapping 4361 if ((attr->flags & AUDIO_FLAG_BEACON) == AUDIO_FLAG_BEACON) { 4362 return (uint32_t) STRATEGY_TRANSMITTED_THROUGH_SPEAKER; 4363 } 4364 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 4365 return (uint32_t) STRATEGY_ENFORCED_AUDIBLE; 4366 } 4367 4368 // usage to strategy mapping 4369 switch (attr->usage) { 4370 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 4371 if (isStreamActive(AUDIO_STREAM_RING) || isStreamActive(AUDIO_STREAM_ALARM)) { 4372 return (uint32_t) STRATEGY_SONIFICATION; 4373 } 4374 if (isInCall()) { 4375 return (uint32_t) STRATEGY_PHONE; 4376 } 4377 return (uint32_t) STRATEGY_ACCESSIBILITY; 4378 4379 case AUDIO_USAGE_MEDIA: 4380 case AUDIO_USAGE_GAME: 4381 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 4382 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 4383 return (uint32_t) STRATEGY_MEDIA; 4384 4385 case AUDIO_USAGE_VOICE_COMMUNICATION: 4386 return (uint32_t) STRATEGY_PHONE; 4387 4388 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 4389 return (uint32_t) STRATEGY_DTMF; 4390 4391 case AUDIO_USAGE_ALARM: 4392 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 4393 return (uint32_t) STRATEGY_SONIFICATION; 4394 4395 case AUDIO_USAGE_NOTIFICATION: 4396 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 4397 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 4398 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 4399 case AUDIO_USAGE_NOTIFICATION_EVENT: 4400 return (uint32_t) STRATEGY_SONIFICATION_RESPECTFUL; 4401 4402 case AUDIO_USAGE_UNKNOWN: 4403 default: 4404 return (uint32_t) STRATEGY_MEDIA; 4405 } 4406} 4407 4408void AudioPolicyManager::handleNotificationRoutingForStream(audio_stream_type_t stream) { 4409 switch(stream) { 4410 case AUDIO_STREAM_MUSIC: 4411 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 4412 updateDevicesAndOutputs(); 4413 break; 4414 default: 4415 break; 4416 } 4417} 4418 4419bool AudioPolicyManager::isAnyOutputActive(audio_stream_type_t streamToIgnore) { 4420 for (size_t s = 0 ; s < AUDIO_STREAM_CNT ; s++) { 4421 if (s == (size_t) streamToIgnore) { 4422 continue; 4423 } 4424 for (size_t i = 0; i < mOutputs.size(); i++) { 4425 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 4426 if (outputDesc->mRefCount[s] != 0) { 4427 return true; 4428 } 4429 } 4430 } 4431 return false; 4432} 4433 4434uint32_t AudioPolicyManager::handleEventForBeacon(int event) { 4435 switch(event) { 4436 case STARTING_OUTPUT: 4437 mBeaconMuteRefCount++; 4438 break; 4439 case STOPPING_OUTPUT: 4440 if (mBeaconMuteRefCount > 0) { 4441 mBeaconMuteRefCount--; 4442 } 4443 break; 4444 case STARTING_BEACON: 4445 mBeaconPlayingRefCount++; 4446 break; 4447 case STOPPING_BEACON: 4448 if (mBeaconPlayingRefCount > 0) { 4449 mBeaconPlayingRefCount--; 4450 } 4451 break; 4452 } 4453 4454 if (mBeaconMuteRefCount > 0) { 4455 // any playback causes beacon to be muted 4456 return setBeaconMute(true); 4457 } else { 4458 // no other playback: unmute when beacon starts playing, mute when it stops 4459 return setBeaconMute(mBeaconPlayingRefCount == 0); 4460 } 4461} 4462 4463uint32_t AudioPolicyManager::setBeaconMute(bool mute) { 4464 ALOGV("setBeaconMute(%d) mBeaconMuteRefCount=%d mBeaconPlayingRefCount=%d", 4465 mute, mBeaconMuteRefCount, mBeaconPlayingRefCount); 4466 // keep track of muted state to avoid repeating mute/unmute operations 4467 if (mBeaconMuted != mute) { 4468 // mute/unmute AUDIO_STREAM_TTS on all outputs 4469 ALOGV("\t muting %d", mute); 4470 uint32_t maxLatency = 0; 4471 for (size_t i = 0; i < mOutputs.size(); i++) { 4472 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 4473 setStreamMute(AUDIO_STREAM_TTS, mute/*on*/, 4474 desc->mIoHandle, 4475 0 /*delay*/, AUDIO_DEVICE_NONE); 4476 const uint32_t latency = desc->latency() * 2; 4477 if (latency > maxLatency) { 4478 maxLatency = latency; 4479 } 4480 } 4481 mBeaconMuted = mute; 4482 return maxLatency; 4483 } 4484 return 0; 4485} 4486 4487audio_devices_t AudioPolicyManager::getDeviceForStrategy(routing_strategy strategy, 4488 bool fromCache) 4489{ 4490 uint32_t device = AUDIO_DEVICE_NONE; 4491 4492 if (fromCache) { 4493 ALOGVV("getDeviceForStrategy() from cache strategy %d, device %x", 4494 strategy, mDeviceForStrategy[strategy]); 4495 return mDeviceForStrategy[strategy]; 4496 } 4497 audio_devices_t availableOutputDeviceTypes = mAvailableOutputDevices.types(); 4498 switch (strategy) { 4499 4500 case STRATEGY_TRANSMITTED_THROUGH_SPEAKER: 4501 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4502 if (!device) { 4503 ALOGE("getDeviceForStrategy() no device found for "\ 4504 "STRATEGY_TRANSMITTED_THROUGH_SPEAKER"); 4505 } 4506 break; 4507 4508 case STRATEGY_SONIFICATION_RESPECTFUL: 4509 if (isInCall()) { 4510 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 4511 } else if (isStreamActiveRemotely(AUDIO_STREAM_MUSIC, 4512 SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { 4513 // while media is playing on a remote device, use the the sonification behavior. 4514 // Note that we test this usecase before testing if media is playing because 4515 // the isStreamActive() method only informs about the activity of a stream, not 4516 // if it's for local playback. Note also that we use the same delay between both tests 4517 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 4518 //user "safe" speaker if available instead of normal speaker to avoid triggering 4519 //other acoustic safety mechanisms for notification 4520 if (device == AUDIO_DEVICE_OUT_SPEAKER && (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER_SAFE)) 4521 device = AUDIO_DEVICE_OUT_SPEAKER_SAFE; 4522 } else if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { 4523 // while media is playing (or has recently played), use the same device 4524 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); 4525 } else { 4526 // when media is not playing anymore, fall back on the sonification behavior 4527 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 4528 //user "safe" speaker if available instead of normal speaker to avoid triggering 4529 //other acoustic safety mechanisms for notification 4530 if (device == AUDIO_DEVICE_OUT_SPEAKER && (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER_SAFE)) 4531 device = AUDIO_DEVICE_OUT_SPEAKER_SAFE; 4532 } 4533 4534 break; 4535 4536 case STRATEGY_DTMF: 4537 if (!isInCall()) { 4538 // when off call, DTMF strategy follows the same rules as MEDIA strategy 4539 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); 4540 break; 4541 } 4542 // when in call, DTMF and PHONE strategies follow the same rules 4543 // FALL THROUGH 4544 4545 case STRATEGY_PHONE: 4546 // Force use of only devices on primary output if: 4547 // - in call AND 4548 // - cannot route from voice call RX OR 4549 // - audio HAL version is < 3.0 and TX device is on the primary HW module 4550 if (mPhoneState == AUDIO_MODE_IN_CALL) { 4551 audio_devices_t txDevice = 4552 getDeviceAndMixForInputSource(AUDIO_SOURCE_VOICE_COMMUNICATION); 4553 sp<AudioOutputDescriptor> hwOutputDesc = mOutputs.valueFor(mPrimaryOutput); 4554 if (((mAvailableInputDevices.types() & 4555 AUDIO_DEVICE_IN_TELEPHONY_RX & ~AUDIO_DEVICE_BIT_IN) == 0) || 4556 (((txDevice & availablePrimaryInputDevices() & ~AUDIO_DEVICE_BIT_IN) != 0) && 4557 (hwOutputDesc->getAudioPort()->mModule->mHalVersion < 4558 AUDIO_DEVICE_API_VERSION_3_0))) { 4559 availableOutputDeviceTypes = availablePrimaryOutputDevices(); 4560 } 4561 } 4562 // for phone strategy, we first consider the forced use and then the available devices by order 4563 // of priority 4564 switch (mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]) { 4565 case AUDIO_POLICY_FORCE_BT_SCO: 4566 if (!isInCall() || strategy != STRATEGY_DTMF) { 4567 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT; 4568 if (device) break; 4569 } 4570 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET; 4571 if (device) break; 4572 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO; 4573 if (device) break; 4574 // if SCO device is requested but no SCO device is available, fall back to default case 4575 // FALL THROUGH 4576 4577 default: // FORCE_NONE 4578 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to A2DP 4579 if (!isInCall() && 4580 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 4581 (getA2dpOutput() != 0)) { 4582 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; 4583 if (device) break; 4584 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; 4585 if (device) break; 4586 } 4587 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; 4588 if (device) break; 4589 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADSET; 4590 if (device) break; 4591 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 4592 if (device) break; 4593 if (mPhoneState != AUDIO_MODE_IN_CALL) { 4594 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 4595 if (device) break; 4596 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 4597 if (device) break; 4598 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 4599 if (device) break; 4600 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 4601 if (device) break; 4602 } 4603 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_EARPIECE; 4604 if (device) break; 4605 device = mDefaultOutputDevice->mDeviceType; 4606 if (device == AUDIO_DEVICE_NONE) { 4607 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE"); 4608 } 4609 break; 4610 4611 case AUDIO_POLICY_FORCE_SPEAKER: 4612 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to 4613 // A2DP speaker when forcing to speaker output 4614 if (!isInCall() && 4615 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 4616 (getA2dpOutput() != 0)) { 4617 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; 4618 if (device) break; 4619 } 4620 if (!isInCall()) { 4621 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 4622 if (device) break; 4623 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 4624 if (device) break; 4625 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 4626 if (device) break; 4627 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 4628 if (device) break; 4629 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 4630 if (device) break; 4631 } 4632 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_LINE; 4633 if (device) break; 4634 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4635 if (device) break; 4636 device = mDefaultOutputDevice->mDeviceType; 4637 if (device == AUDIO_DEVICE_NONE) { 4638 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE, FORCE_SPEAKER"); 4639 } 4640 break; 4641 } 4642 break; 4643 4644 case STRATEGY_SONIFICATION: 4645 4646 // If incall, just select the STRATEGY_PHONE device: The rest of the behavior is handled by 4647 // handleIncallSonification(). 4648 if (isInCall()) { 4649 device = getDeviceForStrategy(STRATEGY_PHONE, false /*fromCache*/); 4650 break; 4651 } 4652 // FALL THROUGH 4653 4654 case STRATEGY_ENFORCED_AUDIBLE: 4655 // strategy STRATEGY_ENFORCED_AUDIBLE uses same routing policy as STRATEGY_SONIFICATION 4656 // except: 4657 // - when in call where it doesn't default to STRATEGY_PHONE behavior 4658 // - in countries where not enforced in which case it follows STRATEGY_MEDIA 4659 4660 if ((strategy == STRATEGY_SONIFICATION) || 4661 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED)) { 4662 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4663 if (device == AUDIO_DEVICE_NONE) { 4664 ALOGE("getDeviceForStrategy() speaker device not found for STRATEGY_SONIFICATION"); 4665 } 4666 } 4667 // The second device used for sonification is the same as the device used by media strategy 4668 // FALL THROUGH 4669 4670 // FIXME: STRATEGY_ACCESSIBILITY and STRATEGY_REROUTING follow STRATEGY_MEDIA for now 4671 case STRATEGY_ACCESSIBILITY: 4672 if (strategy == STRATEGY_ACCESSIBILITY) { 4673 // do not route accessibility prompts to a digital output currently configured with a 4674 // compressed format as they would likely not be mixed and dropped. 4675 for (size_t i = 0; i < mOutputs.size(); i++) { 4676 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 4677 audio_devices_t devices = desc->device() & 4678 (AUDIO_DEVICE_OUT_HDMI | AUDIO_DEVICE_OUT_SPDIF | AUDIO_DEVICE_OUT_HDMI_ARC); 4679 if (desc->isActive() && !audio_is_linear_pcm(desc->mFormat) && 4680 devices != AUDIO_DEVICE_NONE) { 4681 availableOutputDeviceTypes = availableOutputDeviceTypes & ~devices; 4682 } 4683 } 4684 } 4685 // FALL THROUGH 4686 4687 case STRATEGY_REROUTING: 4688 case STRATEGY_MEDIA: { 4689 uint32_t device2 = AUDIO_DEVICE_NONE; 4690 if (strategy != STRATEGY_SONIFICATION) { 4691 // no sonification on remote submix (e.g. WFD) 4692 if (mAvailableOutputDevices.getDevice(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, String8("0")) != 0) { 4693 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_REMOTE_SUBMIX; 4694 } 4695 } 4696 if ((device2 == AUDIO_DEVICE_NONE) && 4697 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 4698 (getA2dpOutput() != 0)) { 4699 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; 4700 if (device2 == AUDIO_DEVICE_NONE) { 4701 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; 4702 } 4703 if (device2 == AUDIO_DEVICE_NONE) { 4704 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; 4705 } 4706 } 4707 if ((device2 == AUDIO_DEVICE_NONE) && 4708 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] == AUDIO_POLICY_FORCE_SPEAKER)) { 4709 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4710 } 4711 if (device2 == AUDIO_DEVICE_NONE) { 4712 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; 4713 } 4714 if ((device2 == AUDIO_DEVICE_NONE)) { 4715 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_LINE; 4716 } 4717 if (device2 == AUDIO_DEVICE_NONE) { 4718 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADSET; 4719 } 4720 if (device2 == AUDIO_DEVICE_NONE) { 4721 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 4722 } 4723 if (device2 == AUDIO_DEVICE_NONE) { 4724 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 4725 } 4726 if (device2 == AUDIO_DEVICE_NONE) { 4727 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 4728 } 4729 if ((device2 == AUDIO_DEVICE_NONE) && (strategy != STRATEGY_SONIFICATION)) { 4730 // no sonification on aux digital (e.g. HDMI) 4731 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 4732 } 4733 if ((device2 == AUDIO_DEVICE_NONE) && 4734 (mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK] == AUDIO_POLICY_FORCE_ANALOG_DOCK)) { 4735 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 4736 } 4737 if (device2 == AUDIO_DEVICE_NONE) { 4738 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4739 } 4740 int device3 = AUDIO_DEVICE_NONE; 4741 if (strategy == STRATEGY_MEDIA) { 4742 // ARC, SPDIF and AUX_LINE can co-exist with others. 4743 device3 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_HDMI_ARC; 4744 device3 |= (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPDIF); 4745 device3 |= (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_LINE); 4746 } 4747 4748 device2 |= device3; 4749 // device is DEVICE_OUT_SPEAKER if we come from case STRATEGY_SONIFICATION or 4750 // STRATEGY_ENFORCED_AUDIBLE, AUDIO_DEVICE_NONE otherwise 4751 device |= device2; 4752 4753 // If hdmi system audio mode is on, remove speaker out of output list. 4754 if ((strategy == STRATEGY_MEDIA) && 4755 (mForceUse[AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO] == 4756 AUDIO_POLICY_FORCE_HDMI_SYSTEM_AUDIO_ENFORCED)) { 4757 device &= ~AUDIO_DEVICE_OUT_SPEAKER; 4758 } 4759 4760 if (device) break; 4761 device = mDefaultOutputDevice->mDeviceType; 4762 if (device == AUDIO_DEVICE_NONE) { 4763 ALOGE("getDeviceForStrategy() no device found for STRATEGY_MEDIA"); 4764 } 4765 } break; 4766 4767 default: 4768 ALOGW("getDeviceForStrategy() unknown strategy: %d", strategy); 4769 break; 4770 } 4771 4772 ALOGVV("getDeviceForStrategy() strategy %d, device %x", strategy, device); 4773 return device; 4774} 4775 4776void AudioPolicyManager::updateDevicesAndOutputs() 4777{ 4778 for (int i = 0; i < NUM_STRATEGIES; i++) { 4779 mDeviceForStrategy[i] = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 4780 } 4781 mPreviousOutputs = mOutputs; 4782} 4783 4784uint32_t AudioPolicyManager::checkDeviceMuteStrategies(sp<AudioOutputDescriptor> outputDesc, 4785 audio_devices_t prevDevice, 4786 uint32_t delayMs) 4787{ 4788 // mute/unmute strategies using an incompatible device combination 4789 // if muting, wait for the audio in pcm buffer to be drained before proceeding 4790 // if unmuting, unmute only after the specified delay 4791 if (outputDesc->isDuplicated()) { 4792 return 0; 4793 } 4794 4795 uint32_t muteWaitMs = 0; 4796 audio_devices_t device = outputDesc->device(); 4797 bool shouldMute = outputDesc->isActive() && (popcount(device) >= 2); 4798 4799 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 4800 audio_devices_t curDevice = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 4801 curDevice = curDevice & outputDesc->mProfile->mSupportedDevices.types(); 4802 bool mute = shouldMute && (curDevice & device) && (curDevice != device); 4803 bool doMute = false; 4804 4805 if (mute && !outputDesc->mStrategyMutedByDevice[i]) { 4806 doMute = true; 4807 outputDesc->mStrategyMutedByDevice[i] = true; 4808 } else if (!mute && outputDesc->mStrategyMutedByDevice[i]){ 4809 doMute = true; 4810 outputDesc->mStrategyMutedByDevice[i] = false; 4811 } 4812 if (doMute) { 4813 for (size_t j = 0; j < mOutputs.size(); j++) { 4814 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(j); 4815 // skip output if it does not share any device with current output 4816 if ((desc->supportedDevices() & outputDesc->supportedDevices()) 4817 == AUDIO_DEVICE_NONE) { 4818 continue; 4819 } 4820 audio_io_handle_t curOutput = mOutputs.keyAt(j); 4821 ALOGVV("checkDeviceMuteStrategies() %s strategy %d (curDevice %04x) on output %d", 4822 mute ? "muting" : "unmuting", i, curDevice, curOutput); 4823 setStrategyMute((routing_strategy)i, mute, curOutput, mute ? 0 : delayMs); 4824 if (desc->isStrategyActive((routing_strategy)i)) { 4825 if (mute) { 4826 // FIXME: should not need to double latency if volume could be applied 4827 // immediately by the audioflinger mixer. We must account for the delay 4828 // between now and the next time the audioflinger thread for this output 4829 // will process a buffer (which corresponds to one buffer size, 4830 // usually 1/2 or 1/4 of the latency). 4831 if (muteWaitMs < desc->latency() * 2) { 4832 muteWaitMs = desc->latency() * 2; 4833 } 4834 } 4835 } 4836 } 4837 } 4838 } 4839 4840 // temporary mute output if device selection changes to avoid volume bursts due to 4841 // different per device volumes 4842 if (outputDesc->isActive() && (device != prevDevice)) { 4843 if (muteWaitMs < outputDesc->latency() * 2) { 4844 muteWaitMs = outputDesc->latency() * 2; 4845 } 4846 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 4847 if (outputDesc->isStrategyActive((routing_strategy)i)) { 4848 setStrategyMute((routing_strategy)i, true, outputDesc->mIoHandle); 4849 // do tempMute unmute after twice the mute wait time 4850 setStrategyMute((routing_strategy)i, false, outputDesc->mIoHandle, 4851 muteWaitMs *2, device); 4852 } 4853 } 4854 } 4855 4856 // wait for the PCM output buffers to empty before proceeding with the rest of the command 4857 if (muteWaitMs > delayMs) { 4858 muteWaitMs -= delayMs; 4859 usleep(muteWaitMs * 1000); 4860 return muteWaitMs; 4861 } 4862 return 0; 4863} 4864 4865uint32_t AudioPolicyManager::setOutputDevice(audio_io_handle_t output, 4866 audio_devices_t device, 4867 bool force, 4868 int delayMs, 4869 audio_patch_handle_t *patchHandle, 4870 const char* address) 4871{ 4872 ALOGV("setOutputDevice() output %d device %04x delayMs %d", output, device, delayMs); 4873 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4874 AudioParameter param; 4875 uint32_t muteWaitMs; 4876 4877 if (outputDesc->isDuplicated()) { 4878 muteWaitMs = setOutputDevice(outputDesc->mOutput1->mIoHandle, device, force, delayMs); 4879 muteWaitMs += setOutputDevice(outputDesc->mOutput2->mIoHandle, device, force, delayMs); 4880 return muteWaitMs; 4881 } 4882 // no need to proceed if new device is not AUDIO_DEVICE_NONE and not supported by current 4883 // output profile 4884 if ((device != AUDIO_DEVICE_NONE) && 4885 ((device & outputDesc->mProfile->mSupportedDevices.types()) == 0)) { 4886 return 0; 4887 } 4888 4889 // filter devices according to output selected 4890 device = (audio_devices_t)(device & outputDesc->mProfile->mSupportedDevices.types()); 4891 4892 audio_devices_t prevDevice = outputDesc->mDevice; 4893 4894 ALOGV("setOutputDevice() prevDevice %04x", prevDevice); 4895 4896 if (device != AUDIO_DEVICE_NONE) { 4897 outputDesc->mDevice = device; 4898 } 4899 muteWaitMs = checkDeviceMuteStrategies(outputDesc, prevDevice, delayMs); 4900 4901 // Do not change the routing if: 4902 // the requested device is AUDIO_DEVICE_NONE 4903 // OR the requested device is the same as current device 4904 // AND force is not specified 4905 // AND the output is connected by a valid audio patch. 4906 // Doing this check here allows the caller to call setOutputDevice() without conditions 4907 if ((device == AUDIO_DEVICE_NONE || device == prevDevice) && !force && 4908 outputDesc->mPatchHandle != 0) { 4909 ALOGV("setOutputDevice() setting same device %04x or null device for output %d", 4910 device, output); 4911 return muteWaitMs; 4912 } 4913 4914 ALOGV("setOutputDevice() changing device"); 4915 4916 // do the routing 4917 if (device == AUDIO_DEVICE_NONE) { 4918 resetOutputDevice(output, delayMs, NULL); 4919 } else { 4920 DeviceVector deviceList = (address == NULL) ? 4921 mAvailableOutputDevices.getDevicesFromType(device) 4922 : mAvailableOutputDevices.getDevicesFromTypeAddr(device, String8(address)); 4923 if (!deviceList.isEmpty()) { 4924 struct audio_patch patch; 4925 outputDesc->toAudioPortConfig(&patch.sources[0]); 4926 patch.num_sources = 1; 4927 patch.num_sinks = 0; 4928 for (size_t i = 0; i < deviceList.size() && i < AUDIO_PATCH_PORTS_MAX; i++) { 4929 deviceList.itemAt(i)->toAudioPortConfig(&patch.sinks[i]); 4930 patch.num_sinks++; 4931 } 4932 ssize_t index; 4933 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 4934 index = mAudioPatches.indexOfKey(*patchHandle); 4935 } else { 4936 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4937 } 4938 sp< AudioPatch> patchDesc; 4939 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 4940 if (index >= 0) { 4941 patchDesc = mAudioPatches.valueAt(index); 4942 afPatchHandle = patchDesc->mAfPatchHandle; 4943 } 4944 4945 status_t status = mpClientInterface->createAudioPatch(&patch, 4946 &afPatchHandle, 4947 delayMs); 4948 ALOGV("setOutputDevice() createAudioPatch returned %d patchHandle %d" 4949 "num_sources %d num_sinks %d", 4950 status, afPatchHandle, patch.num_sources, patch.num_sinks); 4951 if (status == NO_ERROR) { 4952 if (index < 0) { 4953 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 4954 &patch, mUidCached); 4955 addAudioPatch(patchDesc->mHandle, patchDesc); 4956 } else { 4957 patchDesc->mPatch = patch; 4958 } 4959 patchDesc->mAfPatchHandle = afPatchHandle; 4960 patchDesc->mUid = mUidCached; 4961 if (patchHandle) { 4962 *patchHandle = patchDesc->mHandle; 4963 } 4964 outputDesc->mPatchHandle = patchDesc->mHandle; 4965 nextAudioPortGeneration(); 4966 mpClientInterface->onAudioPatchListUpdate(); 4967 } 4968 } 4969 4970 // inform all input as well 4971 for (size_t i = 0; i < mInputs.size(); i++) { 4972 const sp<AudioInputDescriptor> inputDescriptor = mInputs.valueAt(i); 4973 if (!isVirtualInputDevice(inputDescriptor->mDevice)) { 4974 AudioParameter inputCmd = AudioParameter(); 4975 ALOGV("%s: inform input %d of device:%d", __func__, 4976 inputDescriptor->mIoHandle, device); 4977 inputCmd.addInt(String8(AudioParameter::keyRouting),device); 4978 mpClientInterface->setParameters(inputDescriptor->mIoHandle, 4979 inputCmd.toString(), 4980 delayMs); 4981 } 4982 } 4983 } 4984 4985 // update stream volumes according to new device 4986 applyStreamVolumes(output, device, delayMs); 4987 4988 return muteWaitMs; 4989} 4990 4991status_t AudioPolicyManager::resetOutputDevice(audio_io_handle_t output, 4992 int delayMs, 4993 audio_patch_handle_t *patchHandle) 4994{ 4995 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4996 ssize_t index; 4997 if (patchHandle) { 4998 index = mAudioPatches.indexOfKey(*patchHandle); 4999 } else { 5000 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 5001 } 5002 if (index < 0) { 5003 return INVALID_OPERATION; 5004 } 5005 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 5006 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, delayMs); 5007 ALOGV("resetOutputDevice() releaseAudioPatch returned %d", status); 5008 outputDesc->mPatchHandle = 0; 5009 removeAudioPatch(patchDesc->mHandle); 5010 nextAudioPortGeneration(); 5011 mpClientInterface->onAudioPatchListUpdate(); 5012 return status; 5013} 5014 5015status_t AudioPolicyManager::setInputDevice(audio_io_handle_t input, 5016 audio_devices_t device, 5017 bool force, 5018 audio_patch_handle_t *patchHandle) 5019{ 5020 status_t status = NO_ERROR; 5021 5022 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 5023 if ((device != AUDIO_DEVICE_NONE) && ((device != inputDesc->mDevice) || force)) { 5024 inputDesc->mDevice = device; 5025 5026 DeviceVector deviceList = mAvailableInputDevices.getDevicesFromType(device); 5027 if (!deviceList.isEmpty()) { 5028 struct audio_patch patch; 5029 inputDesc->toAudioPortConfig(&patch.sinks[0]); 5030 // AUDIO_SOURCE_HOTWORD is for internal use only: 5031 // handled as AUDIO_SOURCE_VOICE_RECOGNITION by the audio HAL 5032 if (patch.sinks[0].ext.mix.usecase.source == AUDIO_SOURCE_HOTWORD && 5033 !inputDesc->mIsSoundTrigger) { 5034 patch.sinks[0].ext.mix.usecase.source = AUDIO_SOURCE_VOICE_RECOGNITION; 5035 } 5036 patch.num_sinks = 1; 5037 //only one input device for now 5038 deviceList.itemAt(0)->toAudioPortConfig(&patch.sources[0]); 5039 patch.num_sources = 1; 5040 ssize_t index; 5041 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 5042 index = mAudioPatches.indexOfKey(*patchHandle); 5043 } else { 5044 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 5045 } 5046 sp< AudioPatch> patchDesc; 5047 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 5048 if (index >= 0) { 5049 patchDesc = mAudioPatches.valueAt(index); 5050 afPatchHandle = patchDesc->mAfPatchHandle; 5051 } 5052 5053 status_t status = mpClientInterface->createAudioPatch(&patch, 5054 &afPatchHandle, 5055 0); 5056 ALOGV("setInputDevice() createAudioPatch returned %d patchHandle %d", 5057 status, afPatchHandle); 5058 if (status == NO_ERROR) { 5059 if (index < 0) { 5060 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 5061 &patch, mUidCached); 5062 addAudioPatch(patchDesc->mHandle, patchDesc); 5063 } else { 5064 patchDesc->mPatch = patch; 5065 } 5066 patchDesc->mAfPatchHandle = afPatchHandle; 5067 patchDesc->mUid = mUidCached; 5068 if (patchHandle) { 5069 *patchHandle = patchDesc->mHandle; 5070 } 5071 inputDesc->mPatchHandle = patchDesc->mHandle; 5072 nextAudioPortGeneration(); 5073 mpClientInterface->onAudioPatchListUpdate(); 5074 } 5075 } 5076 } 5077 return status; 5078} 5079 5080status_t AudioPolicyManager::resetInputDevice(audio_io_handle_t input, 5081 audio_patch_handle_t *patchHandle) 5082{ 5083 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 5084 ssize_t index; 5085 if (patchHandle) { 5086 index = mAudioPatches.indexOfKey(*patchHandle); 5087 } else { 5088 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 5089 } 5090 if (index < 0) { 5091 return INVALID_OPERATION; 5092 } 5093 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 5094 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 5095 ALOGV("resetInputDevice() releaseAudioPatch returned %d", status); 5096 inputDesc->mPatchHandle = 0; 5097 removeAudioPatch(patchDesc->mHandle); 5098 nextAudioPortGeneration(); 5099 mpClientInterface->onAudioPatchListUpdate(); 5100 return status; 5101} 5102 5103sp<AudioPolicyManager::IOProfile> AudioPolicyManager::getInputProfile(audio_devices_t device, 5104 String8 address, 5105 uint32_t& samplingRate, 5106 audio_format_t format, 5107 audio_channel_mask_t channelMask, 5108 audio_input_flags_t flags) 5109{ 5110 // Choose an input profile based on the requested capture parameters: select the first available 5111 // profile supporting all requested parameters. 5112 5113 for (size_t i = 0; i < mHwModules.size(); i++) 5114 { 5115 if (mHwModules[i]->mHandle == 0) { 5116 continue; 5117 } 5118 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 5119 { 5120 sp<IOProfile> profile = mHwModules[i]->mInputProfiles[j]; 5121 // profile->log(); 5122 if (profile->isCompatibleProfile(device, address, samplingRate, 5123 &samplingRate /*updatedSamplingRate*/, 5124 format, channelMask, (audio_output_flags_t) flags)) { 5125 5126 return profile; 5127 } 5128 } 5129 } 5130 return NULL; 5131} 5132 5133 5134audio_devices_t AudioPolicyManager::getDeviceAndMixForInputSource(audio_source_t inputSource, 5135 AudioMix **policyMix) 5136{ 5137 audio_devices_t availableDeviceTypes = mAvailableInputDevices.types() & 5138 ~AUDIO_DEVICE_BIT_IN; 5139 5140 for (size_t i = 0; i < mPolicyMixes.size(); i++) { 5141 if (mPolicyMixes[i]->mMix.mMixType != MIX_TYPE_RECORDERS) { 5142 continue; 5143 } 5144 for (size_t j = 0; j < mPolicyMixes[i]->mMix.mCriteria.size(); j++) { 5145 if ((RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET == mPolicyMixes[i]->mMix.mCriteria[j].mRule && 5146 mPolicyMixes[i]->mMix.mCriteria[j].mAttr.mSource == inputSource) || 5147 (RULE_EXCLUDE_ATTRIBUTE_CAPTURE_PRESET == mPolicyMixes[i]->mMix.mCriteria[j].mRule && 5148 mPolicyMixes[i]->mMix.mCriteria[j].mAttr.mSource != inputSource)) { 5149 if (availableDeviceTypes & AUDIO_DEVICE_IN_REMOTE_SUBMIX) { 5150 if (policyMix != NULL) { 5151 *policyMix = &mPolicyMixes[i]->mMix; 5152 } 5153 return AUDIO_DEVICE_IN_REMOTE_SUBMIX; 5154 } 5155 break; 5156 } 5157 } 5158 } 5159 5160 return getDeviceForInputSource(inputSource); 5161} 5162 5163audio_devices_t AudioPolicyManager::getDeviceForInputSource(audio_source_t inputSource) 5164{ 5165 uint32_t device = AUDIO_DEVICE_NONE; 5166 audio_devices_t availableDeviceTypes = mAvailableInputDevices.types() & 5167 ~AUDIO_DEVICE_BIT_IN; 5168 5169 switch (inputSource) { 5170 case AUDIO_SOURCE_VOICE_UPLINK: 5171 if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) { 5172 device = AUDIO_DEVICE_IN_VOICE_CALL; 5173 break; 5174 } 5175 break; 5176 5177 case AUDIO_SOURCE_DEFAULT: 5178 case AUDIO_SOURCE_MIC: 5179 if (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_A2DP) { 5180 device = AUDIO_DEVICE_IN_BLUETOOTH_A2DP; 5181 } else if ((mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO) && 5182 (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET)) { 5183 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 5184 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 5185 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 5186 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 5187 device = AUDIO_DEVICE_IN_USB_DEVICE; 5188 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 5189 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 5190 } 5191 break; 5192 5193 case AUDIO_SOURCE_VOICE_COMMUNICATION: 5194 // Allow only use of devices on primary input if in call and HAL does not support routing 5195 // to voice call path. 5196 if ((mPhoneState == AUDIO_MODE_IN_CALL) && 5197 (mAvailableOutputDevices.types() & AUDIO_DEVICE_OUT_TELEPHONY_TX) == 0) { 5198 availableDeviceTypes = availablePrimaryInputDevices() & ~AUDIO_DEVICE_BIT_IN; 5199 } 5200 5201 switch (mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]) { 5202 case AUDIO_POLICY_FORCE_BT_SCO: 5203 // if SCO device is requested but no SCO device is available, fall back to default case 5204 if (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) { 5205 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 5206 break; 5207 } 5208 // FALL THROUGH 5209 5210 default: // FORCE_NONE 5211 if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 5212 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 5213 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 5214 device = AUDIO_DEVICE_IN_USB_DEVICE; 5215 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 5216 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 5217 } 5218 break; 5219 5220 case AUDIO_POLICY_FORCE_SPEAKER: 5221 if (availableDeviceTypes & AUDIO_DEVICE_IN_BACK_MIC) { 5222 device = AUDIO_DEVICE_IN_BACK_MIC; 5223 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 5224 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 5225 } 5226 break; 5227 } 5228 break; 5229 5230 case AUDIO_SOURCE_VOICE_RECOGNITION: 5231 case AUDIO_SOURCE_HOTWORD: 5232 if (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO && 5233 availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) { 5234 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 5235 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 5236 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 5237 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 5238 device = AUDIO_DEVICE_IN_USB_DEVICE; 5239 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 5240 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 5241 } 5242 break; 5243 case AUDIO_SOURCE_CAMCORDER: 5244 if (availableDeviceTypes & AUDIO_DEVICE_IN_BACK_MIC) { 5245 device = AUDIO_DEVICE_IN_BACK_MIC; 5246 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 5247 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 5248 } 5249 break; 5250 case AUDIO_SOURCE_VOICE_DOWNLINK: 5251 case AUDIO_SOURCE_VOICE_CALL: 5252 if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) { 5253 device = AUDIO_DEVICE_IN_VOICE_CALL; 5254 } 5255 break; 5256 case AUDIO_SOURCE_REMOTE_SUBMIX: 5257 if (availableDeviceTypes & AUDIO_DEVICE_IN_REMOTE_SUBMIX) { 5258 device = AUDIO_DEVICE_IN_REMOTE_SUBMIX; 5259 } 5260 break; 5261 case AUDIO_SOURCE_FM_TUNER: 5262 if (availableDeviceTypes & AUDIO_DEVICE_IN_FM_TUNER) { 5263 device = AUDIO_DEVICE_IN_FM_TUNER; 5264 } 5265 break; 5266 default: 5267 ALOGW("getDeviceForInputSource() invalid input source %d", inputSource); 5268 break; 5269 } 5270 ALOGV("getDeviceForInputSource()input source %d, device %08x", inputSource, device); 5271 return device; 5272} 5273 5274bool AudioPolicyManager::isVirtualInputDevice(audio_devices_t device) 5275{ 5276 if ((device & AUDIO_DEVICE_BIT_IN) != 0) { 5277 device &= ~AUDIO_DEVICE_BIT_IN; 5278 if ((popcount(device) == 1) && ((device & ~APM_AUDIO_IN_DEVICE_VIRTUAL_ALL) == 0)) 5279 return true; 5280 } 5281 return false; 5282} 5283 5284bool AudioPolicyManager::deviceDistinguishesOnAddress(audio_devices_t device) { 5285 return ((device & APM_AUDIO_DEVICE_MATCH_ADDRESS_ALL & ~AUDIO_DEVICE_BIT_IN) != 0); 5286} 5287 5288audio_io_handle_t AudioPolicyManager::getActiveInput(bool ignoreVirtualInputs) 5289{ 5290 for (size_t i = 0; i < mInputs.size(); i++) { 5291 const sp<AudioInputDescriptor> input_descriptor = mInputs.valueAt(i); 5292 if ((input_descriptor->mRefCount > 0) 5293 && (!ignoreVirtualInputs || !isVirtualInputDevice(input_descriptor->mDevice))) { 5294 return mInputs.keyAt(i); 5295 } 5296 } 5297 return 0; 5298} 5299 5300uint32_t AudioPolicyManager::activeInputsCount() const 5301{ 5302 uint32_t count = 0; 5303 for (size_t i = 0; i < mInputs.size(); i++) { 5304 const sp<AudioInputDescriptor> desc = mInputs.valueAt(i); 5305 if (desc->mRefCount > 0) { 5306 count++; 5307 } 5308 } 5309 return count; 5310} 5311 5312 5313audio_devices_t AudioPolicyManager::getDeviceForVolume(audio_devices_t device) 5314{ 5315 if (device == AUDIO_DEVICE_NONE) { 5316 // this happens when forcing a route update and no track is active on an output. 5317 // In this case the returned category is not important. 5318 device = AUDIO_DEVICE_OUT_SPEAKER; 5319 } else if (popcount(device) > 1) { 5320 // Multiple device selection is either: 5321 // - speaker + one other device: give priority to speaker in this case. 5322 // - one A2DP device + another device: happens with duplicated output. In this case 5323 // retain the device on the A2DP output as the other must not correspond to an active 5324 // selection if not the speaker. 5325 // - HDMI-CEC system audio mode only output: give priority to available item in order. 5326 if (device & AUDIO_DEVICE_OUT_SPEAKER) { 5327 device = AUDIO_DEVICE_OUT_SPEAKER; 5328 } else if (device & AUDIO_DEVICE_OUT_HDMI_ARC) { 5329 device = AUDIO_DEVICE_OUT_HDMI_ARC; 5330 } else if (device & AUDIO_DEVICE_OUT_AUX_LINE) { 5331 device = AUDIO_DEVICE_OUT_AUX_LINE; 5332 } else if (device & AUDIO_DEVICE_OUT_SPDIF) { 5333 device = AUDIO_DEVICE_OUT_SPDIF; 5334 } else { 5335 device = (audio_devices_t)(device & AUDIO_DEVICE_OUT_ALL_A2DP); 5336 } 5337 } 5338 5339 /*SPEAKER_SAFE is an alias of SPEAKER for purposes of volume control*/ 5340 if (device == AUDIO_DEVICE_OUT_SPEAKER_SAFE) 5341 device = AUDIO_DEVICE_OUT_SPEAKER; 5342 5343 ALOGW_IF(popcount(device) != 1, 5344 "getDeviceForVolume() invalid device combination: %08x", 5345 device); 5346 5347 return device; 5348} 5349 5350AudioPolicyManager::device_category AudioPolicyManager::getDeviceCategory(audio_devices_t device) 5351{ 5352 switch(getDeviceForVolume(device)) { 5353 case AUDIO_DEVICE_OUT_EARPIECE: 5354 return DEVICE_CATEGORY_EARPIECE; 5355 case AUDIO_DEVICE_OUT_WIRED_HEADSET: 5356 case AUDIO_DEVICE_OUT_WIRED_HEADPHONE: 5357 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO: 5358 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET: 5359 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP: 5360 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES: 5361 return DEVICE_CATEGORY_HEADSET; 5362 case AUDIO_DEVICE_OUT_LINE: 5363 case AUDIO_DEVICE_OUT_AUX_DIGITAL: 5364 /*USB? Remote submix?*/ 5365 return DEVICE_CATEGORY_EXT_MEDIA; 5366 case AUDIO_DEVICE_OUT_SPEAKER: 5367 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT: 5368 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER: 5369 case AUDIO_DEVICE_OUT_USB_ACCESSORY: 5370 case AUDIO_DEVICE_OUT_USB_DEVICE: 5371 case AUDIO_DEVICE_OUT_REMOTE_SUBMIX: 5372 default: 5373 return DEVICE_CATEGORY_SPEAKER; 5374 } 5375} 5376 5377/* static */ 5378float AudioPolicyManager::volIndexToAmpl(audio_devices_t device, const StreamDescriptor& streamDesc, 5379 int indexInUi) 5380{ 5381 device_category deviceCategory = getDeviceCategory(device); 5382 const VolumeCurvePoint *curve = streamDesc.mVolumeCurve[deviceCategory]; 5383 5384 // the volume index in the UI is relative to the min and max volume indices for this stream type 5385 int nbSteps = 1 + curve[VOLMAX].mIndex - 5386 curve[VOLMIN].mIndex; 5387 int volIdx = (nbSteps * (indexInUi - streamDesc.mIndexMin)) / 5388 (streamDesc.mIndexMax - streamDesc.mIndexMin); 5389 5390 // find what part of the curve this index volume belongs to, or if it's out of bounds 5391 int segment = 0; 5392 if (volIdx < curve[VOLMIN].mIndex) { // out of bounds 5393 return 0.0f; 5394 } else if (volIdx < curve[VOLKNEE1].mIndex) { 5395 segment = 0; 5396 } else if (volIdx < curve[VOLKNEE2].mIndex) { 5397 segment = 1; 5398 } else if (volIdx <= curve[VOLMAX].mIndex) { 5399 segment = 2; 5400 } else { // out of bounds 5401 return 1.0f; 5402 } 5403 5404 // linear interpolation in the attenuation table in dB 5405 float decibels = curve[segment].mDBAttenuation + 5406 ((float)(volIdx - curve[segment].mIndex)) * 5407 ( (curve[segment+1].mDBAttenuation - 5408 curve[segment].mDBAttenuation) / 5409 ((float)(curve[segment+1].mIndex - 5410 curve[segment].mIndex)) ); 5411 5412 float amplification = exp( decibels * 0.115129f); // exp( dB * ln(10) / 20 ) 5413 5414 ALOGVV("VOLUME vol index=[%d %d %d], dB=[%.1f %.1f %.1f] ampl=%.5f", 5415 curve[segment].mIndex, volIdx, 5416 curve[segment+1].mIndex, 5417 curve[segment].mDBAttenuation, 5418 decibels, 5419 curve[segment+1].mDBAttenuation, 5420 amplification); 5421 5422 return amplification; 5423} 5424 5425const AudioPolicyManager::VolumeCurvePoint 5426 AudioPolicyManager::sDefaultVolumeCurve[AudioPolicyManager::VOLCNT] = { 5427 {1, -49.5f}, {33, -33.5f}, {66, -17.0f}, {100, 0.0f} 5428}; 5429 5430const AudioPolicyManager::VolumeCurvePoint 5431 AudioPolicyManager::sDefaultMediaVolumeCurve[AudioPolicyManager::VOLCNT] = { 5432 {1, -58.0f}, {20, -40.0f}, {60, -17.0f}, {100, 0.0f} 5433}; 5434 5435const AudioPolicyManager::VolumeCurvePoint 5436 AudioPolicyManager::sExtMediaSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 5437 {1, -58.0f}, {20, -40.0f}, {60, -21.0f}, {100, -10.0f} 5438}; 5439 5440const AudioPolicyManager::VolumeCurvePoint 5441 AudioPolicyManager::sSpeakerMediaVolumeCurve[AudioPolicyManager::VOLCNT] = { 5442 {1, -56.0f}, {20, -34.0f}, {60, -11.0f}, {100, 0.0f} 5443}; 5444 5445const AudioPolicyManager::VolumeCurvePoint 5446 AudioPolicyManager::sSpeakerMediaVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 5447 {1, -55.0f}, {20, -43.0f}, {86, -12.0f}, {100, 0.0f} 5448}; 5449 5450const AudioPolicyManager::VolumeCurvePoint 5451 AudioPolicyManager::sSpeakerSonificationVolumeCurve[AudioPolicyManager::VOLCNT] = { 5452 {1, -29.7f}, {33, -20.1f}, {66, -10.2f}, {100, 0.0f} 5453}; 5454 5455const AudioPolicyManager::VolumeCurvePoint 5456 AudioPolicyManager::sSpeakerSonificationVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 5457 {1, -35.7f}, {33, -26.1f}, {66, -13.2f}, {100, 0.0f} 5458}; 5459 5460// AUDIO_STREAM_SYSTEM, AUDIO_STREAM_ENFORCED_AUDIBLE and AUDIO_STREAM_DTMF volume tracks 5461// AUDIO_STREAM_RING on phones and AUDIO_STREAM_MUSIC on tablets. 5462// AUDIO_STREAM_DTMF tracks AUDIO_STREAM_VOICE_CALL while in call (See AudioService.java). 5463// The range is constrained between -24dB and -6dB over speaker and -30dB and -18dB over headset. 5464 5465const AudioPolicyManager::VolumeCurvePoint 5466 AudioPolicyManager::sDefaultSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 5467 {1, -24.0f}, {33, -18.0f}, {66, -12.0f}, {100, -6.0f} 5468}; 5469 5470const AudioPolicyManager::VolumeCurvePoint 5471 AudioPolicyManager::sDefaultSystemVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 5472 {1, -34.0f}, {33, -24.0f}, {66, -15.0f}, {100, -6.0f} 5473}; 5474 5475const AudioPolicyManager::VolumeCurvePoint 5476 AudioPolicyManager::sHeadsetSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 5477 {1, -30.0f}, {33, -26.0f}, {66, -22.0f}, {100, -18.0f} 5478}; 5479 5480const AudioPolicyManager::VolumeCurvePoint 5481 AudioPolicyManager::sDefaultVoiceVolumeCurve[AudioPolicyManager::VOLCNT] = { 5482 {0, -42.0f}, {33, -28.0f}, {66, -14.0f}, {100, 0.0f} 5483}; 5484 5485const AudioPolicyManager::VolumeCurvePoint 5486 AudioPolicyManager::sSpeakerVoiceVolumeCurve[AudioPolicyManager::VOLCNT] = { 5487 {0, -24.0f}, {33, -16.0f}, {66, -8.0f}, {100, 0.0f} 5488}; 5489 5490const AudioPolicyManager::VolumeCurvePoint 5491 AudioPolicyManager::sLinearVolumeCurve[AudioPolicyManager::VOLCNT] = { 5492 {0, -96.0f}, {33, -68.0f}, {66, -34.0f}, {100, 0.0f} 5493}; 5494 5495const AudioPolicyManager::VolumeCurvePoint 5496 AudioPolicyManager::sSilentVolumeCurve[AudioPolicyManager::VOLCNT] = { 5497 {0, -96.0f}, {1, -96.0f}, {2, -96.0f}, {100, -96.0f} 5498}; 5499 5500const AudioPolicyManager::VolumeCurvePoint 5501 AudioPolicyManager::sFullScaleVolumeCurve[AudioPolicyManager::VOLCNT] = { 5502 {0, 0.0f}, {1, 0.0f}, {2, 0.0f}, {100, 0.0f} 5503}; 5504 5505const AudioPolicyManager::VolumeCurvePoint 5506 *AudioPolicyManager::sVolumeProfiles[AUDIO_STREAM_CNT] 5507 [AudioPolicyManager::DEVICE_CATEGORY_CNT] = { 5508 { // AUDIO_STREAM_VOICE_CALL 5509 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 5510 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5511 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5512 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5513 }, 5514 { // AUDIO_STREAM_SYSTEM 5515 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 5516 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5517 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5518 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5519 }, 5520 { // AUDIO_STREAM_RING 5521 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 5522 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5523 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5524 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5525 }, 5526 { // AUDIO_STREAM_MUSIC 5527 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 5528 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5529 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5530 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5531 }, 5532 { // AUDIO_STREAM_ALARM 5533 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 5534 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5535 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5536 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5537 }, 5538 { // AUDIO_STREAM_NOTIFICATION 5539 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 5540 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5541 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5542 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5543 }, 5544 { // AUDIO_STREAM_BLUETOOTH_SCO 5545 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 5546 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5547 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5548 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5549 }, 5550 { // AUDIO_STREAM_ENFORCED_AUDIBLE 5551 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 5552 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5553 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5554 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5555 }, 5556 { // AUDIO_STREAM_DTMF 5557 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 5558 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5559 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5560 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5561 }, 5562 { // AUDIO_STREAM_TTS 5563 // "Transmitted Through Speaker": always silent except on DEVICE_CATEGORY_SPEAKER 5564 sSilentVolumeCurve, // DEVICE_CATEGORY_HEADSET 5565 sLinearVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5566 sSilentVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5567 sSilentVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5568 }, 5569 { // AUDIO_STREAM_ACCESSIBILITY 5570 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 5571 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5572 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5573 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5574 }, 5575 { // AUDIO_STREAM_REROUTING 5576 sFullScaleVolumeCurve, // DEVICE_CATEGORY_HEADSET 5577 sFullScaleVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5578 sFullScaleVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5579 sFullScaleVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5580 }, 5581 { // AUDIO_STREAM_PATCH 5582 sFullScaleVolumeCurve, // DEVICE_CATEGORY_HEADSET 5583 sFullScaleVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5584 sFullScaleVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5585 sFullScaleVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5586 }, 5587}; 5588 5589void AudioPolicyManager::initializeVolumeCurves() 5590{ 5591 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 5592 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 5593 mStreams[i].mVolumeCurve[j] = 5594 sVolumeProfiles[i][j]; 5595 } 5596 } 5597 5598 // Check availability of DRC on speaker path: if available, override some of the speaker curves 5599 if (mSpeakerDrcEnabled) { 5600 mStreams[AUDIO_STREAM_SYSTEM].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5601 sDefaultSystemVolumeCurveDrc; 5602 mStreams[AUDIO_STREAM_RING].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5603 sSpeakerSonificationVolumeCurveDrc; 5604 mStreams[AUDIO_STREAM_ALARM].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5605 sSpeakerSonificationVolumeCurveDrc; 5606 mStreams[AUDIO_STREAM_NOTIFICATION].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5607 sSpeakerSonificationVolumeCurveDrc; 5608 mStreams[AUDIO_STREAM_MUSIC].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5609 sSpeakerMediaVolumeCurveDrc; 5610 mStreams[AUDIO_STREAM_ACCESSIBILITY].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5611 sSpeakerMediaVolumeCurveDrc; 5612 } 5613} 5614 5615float AudioPolicyManager::computeVolume(audio_stream_type_t stream, 5616 int index, 5617 audio_io_handle_t output, 5618 audio_devices_t device) 5619{ 5620 float volume = 1.0; 5621 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 5622 StreamDescriptor &streamDesc = mStreams[stream]; 5623 5624 if (device == AUDIO_DEVICE_NONE) { 5625 device = outputDesc->device(); 5626 } 5627 5628 volume = volIndexToAmpl(device, streamDesc, index); 5629 5630 // if a headset is connected, apply the following rules to ring tones and notifications 5631 // to avoid sound level bursts in user's ears: 5632 // - always attenuate ring tones and notifications volume by 6dB 5633 // - if music is playing, always limit the volume to current music volume, 5634 // with a minimum threshold at -36dB so that notification is always perceived. 5635 const routing_strategy stream_strategy = getStrategy(stream); 5636 if ((device & (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP | 5637 AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES | 5638 AUDIO_DEVICE_OUT_WIRED_HEADSET | 5639 AUDIO_DEVICE_OUT_WIRED_HEADPHONE)) && 5640 ((stream_strategy == STRATEGY_SONIFICATION) 5641 || (stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL) 5642 || (stream == AUDIO_STREAM_SYSTEM) 5643 || ((stream_strategy == STRATEGY_ENFORCED_AUDIBLE) && 5644 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_NONE))) && 5645 streamDesc.mCanBeMuted) { 5646 volume *= SONIFICATION_HEADSET_VOLUME_FACTOR; 5647 // when the phone is ringing we must consider that music could have been paused just before 5648 // by the music application and behave as if music was active if the last music track was 5649 // just stopped 5650 if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY) || 5651 mLimitRingtoneVolume) { 5652 audio_devices_t musicDevice = getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/); 5653 float musicVol = computeVolume(AUDIO_STREAM_MUSIC, 5654 mStreams[AUDIO_STREAM_MUSIC].getVolumeIndex(musicDevice), 5655 output, 5656 musicDevice); 5657 float minVol = (musicVol > SONIFICATION_HEADSET_VOLUME_MIN) ? 5658 musicVol : SONIFICATION_HEADSET_VOLUME_MIN; 5659 if (volume > minVol) { 5660 volume = minVol; 5661 ALOGV("computeVolume limiting volume to %f musicVol %f", minVol, musicVol); 5662 } 5663 } 5664 } 5665 5666 return volume; 5667} 5668 5669status_t AudioPolicyManager::checkAndSetVolume(audio_stream_type_t stream, 5670 int index, 5671 audio_io_handle_t output, 5672 audio_devices_t device, 5673 int delayMs, 5674 bool force) 5675{ 5676 5677 // do not change actual stream volume if the stream is muted 5678 if (mOutputs.valueFor(output)->mMuteCount[stream] != 0) { 5679 ALOGVV("checkAndSetVolume() stream %d muted count %d", 5680 stream, mOutputs.valueFor(output)->mMuteCount[stream]); 5681 return NO_ERROR; 5682 } 5683 5684 // do not change in call volume if bluetooth is connected and vice versa 5685 if ((stream == AUDIO_STREAM_VOICE_CALL && 5686 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO) || 5687 (stream == AUDIO_STREAM_BLUETOOTH_SCO && 5688 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] != AUDIO_POLICY_FORCE_BT_SCO)) { 5689 ALOGV("checkAndSetVolume() cannot set stream %d volume with force use = %d for comm", 5690 stream, mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]); 5691 return INVALID_OPERATION; 5692 } 5693 5694 float volume = computeVolume(stream, index, output, device); 5695 // unit gain if rerouting to external policy 5696 if (device == AUDIO_DEVICE_OUT_REMOTE_SUBMIX) { 5697 ssize_t index = mOutputs.indexOfKey(output); 5698 if (index >= 0) { 5699 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 5700 if (outputDesc->mPolicyMix != NULL) { 5701 ALOGV("max gain when rerouting for output=%d", output); 5702 volume = 1.0f; 5703 } 5704 } 5705 5706 } 5707 // We actually change the volume if: 5708 // - the float value returned by computeVolume() changed 5709 // - the force flag is set 5710 if (volume != mOutputs.valueFor(output)->mCurVolume[stream] || 5711 force) { 5712 mOutputs.valueFor(output)->mCurVolume[stream] = volume; 5713 ALOGVV("checkAndSetVolume() for output %d stream %d, volume %f, delay %d", output, stream, volume, delayMs); 5714 // Force VOICE_CALL to track BLUETOOTH_SCO stream volume when bluetooth audio is 5715 // enabled 5716 if (stream == AUDIO_STREAM_BLUETOOTH_SCO) { 5717 mpClientInterface->setStreamVolume(AUDIO_STREAM_VOICE_CALL, volume, output, delayMs); 5718 } 5719 mpClientInterface->setStreamVolume(stream, volume, output, delayMs); 5720 } 5721 5722 if (stream == AUDIO_STREAM_VOICE_CALL || 5723 stream == AUDIO_STREAM_BLUETOOTH_SCO) { 5724 float voiceVolume; 5725 // Force voice volume to max for bluetooth SCO as volume is managed by the headset 5726 if (stream == AUDIO_STREAM_VOICE_CALL) { 5727 voiceVolume = (float)index/(float)mStreams[stream].mIndexMax; 5728 } else { 5729 voiceVolume = 1.0; 5730 } 5731 5732 if (voiceVolume != mLastVoiceVolume && output == mPrimaryOutput) { 5733 mpClientInterface->setVoiceVolume(voiceVolume, delayMs); 5734 mLastVoiceVolume = voiceVolume; 5735 } 5736 } 5737 5738 return NO_ERROR; 5739} 5740 5741void AudioPolicyManager::applyStreamVolumes(audio_io_handle_t output, 5742 audio_devices_t device, 5743 int delayMs, 5744 bool force) 5745{ 5746 ALOGVV("applyStreamVolumes() for output %d and device %x", output, device); 5747 5748 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 5749 if (stream == AUDIO_STREAM_PATCH) { 5750 continue; 5751 } 5752 checkAndSetVolume((audio_stream_type_t)stream, 5753 mStreams[stream].getVolumeIndex(device), 5754 output, 5755 device, 5756 delayMs, 5757 force); 5758 } 5759} 5760 5761void AudioPolicyManager::setStrategyMute(routing_strategy strategy, 5762 bool on, 5763 audio_io_handle_t output, 5764 int delayMs, 5765 audio_devices_t device) 5766{ 5767 ALOGVV("setStrategyMute() strategy %d, mute %d, output %d", strategy, on, output); 5768 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 5769 if (stream == AUDIO_STREAM_PATCH) { 5770 continue; 5771 } 5772 if (getStrategy((audio_stream_type_t)stream) == strategy) { 5773 setStreamMute((audio_stream_type_t)stream, on, output, delayMs, device); 5774 } 5775 } 5776} 5777 5778void AudioPolicyManager::setStreamMute(audio_stream_type_t stream, 5779 bool on, 5780 audio_io_handle_t output, 5781 int delayMs, 5782 audio_devices_t device) 5783{ 5784 StreamDescriptor &streamDesc = mStreams[stream]; 5785 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 5786 if (device == AUDIO_DEVICE_NONE) { 5787 device = outputDesc->device(); 5788 } 5789 5790 ALOGVV("setStreamMute() stream %d, mute %d, output %d, mMuteCount %d device %04x", 5791 stream, on, output, outputDesc->mMuteCount[stream], device); 5792 5793 if (on) { 5794 if (outputDesc->mMuteCount[stream] == 0) { 5795 if (streamDesc.mCanBeMuted && 5796 ((stream != AUDIO_STREAM_ENFORCED_AUDIBLE) || 5797 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_NONE))) { 5798 checkAndSetVolume(stream, 0, output, device, delayMs); 5799 } 5800 } 5801 // increment mMuteCount after calling checkAndSetVolume() so that volume change is not ignored 5802 outputDesc->mMuteCount[stream]++; 5803 } else { 5804 if (outputDesc->mMuteCount[stream] == 0) { 5805 ALOGV("setStreamMute() unmuting non muted stream!"); 5806 return; 5807 } 5808 if (--outputDesc->mMuteCount[stream] == 0) { 5809 checkAndSetVolume(stream, 5810 streamDesc.getVolumeIndex(device), 5811 output, 5812 device, 5813 delayMs); 5814 } 5815 } 5816} 5817 5818void AudioPolicyManager::handleIncallSonification(audio_stream_type_t stream, 5819 bool starting, bool stateChange) 5820{ 5821 // if the stream pertains to sonification strategy and we are in call we must 5822 // mute the stream if it is low visibility. If it is high visibility, we must play a tone 5823 // in the device used for phone strategy and play the tone if the selected device does not 5824 // interfere with the device used for phone strategy 5825 // if stateChange is true, we are called from setPhoneState() and we must mute or unmute as 5826 // many times as there are active tracks on the output 5827 const routing_strategy stream_strategy = getStrategy(stream); 5828 if ((stream_strategy == STRATEGY_SONIFICATION) || 5829 ((stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL))) { 5830 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 5831 ALOGV("handleIncallSonification() stream %d starting %d device %x stateChange %d", 5832 stream, starting, outputDesc->mDevice, stateChange); 5833 if (outputDesc->mRefCount[stream]) { 5834 int muteCount = 1; 5835 if (stateChange) { 5836 muteCount = outputDesc->mRefCount[stream]; 5837 } 5838 if (audio_is_low_visibility(stream)) { 5839 ALOGV("handleIncallSonification() low visibility, muteCount %d", muteCount); 5840 for (int i = 0; i < muteCount; i++) { 5841 setStreamMute(stream, starting, mPrimaryOutput); 5842 } 5843 } else { 5844 ALOGV("handleIncallSonification() high visibility"); 5845 if (outputDesc->device() & 5846 getDeviceForStrategy(STRATEGY_PHONE, true /*fromCache*/)) { 5847 ALOGV("handleIncallSonification() high visibility muted, muteCount %d", muteCount); 5848 for (int i = 0; i < muteCount; i++) { 5849 setStreamMute(stream, starting, mPrimaryOutput); 5850 } 5851 } 5852 if (starting) { 5853 mpClientInterface->startTone(AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION, 5854 AUDIO_STREAM_VOICE_CALL); 5855 } else { 5856 mpClientInterface->stopTone(); 5857 } 5858 } 5859 } 5860 } 5861} 5862 5863bool AudioPolicyManager::isInCall() 5864{ 5865 return isStateInCall(mPhoneState); 5866} 5867 5868bool AudioPolicyManager::isStateInCall(int state) { 5869 return ((state == AUDIO_MODE_IN_CALL) || 5870 (state == AUDIO_MODE_IN_COMMUNICATION)); 5871} 5872 5873uint32_t AudioPolicyManager::getMaxEffectsCpuLoad() 5874{ 5875 return MAX_EFFECTS_CPU_LOAD; 5876} 5877 5878uint32_t AudioPolicyManager::getMaxEffectsMemory() 5879{ 5880 return MAX_EFFECTS_MEMORY; 5881} 5882 5883 5884// --- AudioOutputDescriptor class implementation 5885 5886AudioPolicyManager::AudioOutputDescriptor::AudioOutputDescriptor( 5887 const sp<IOProfile>& profile) 5888 : mId(0), mIoHandle(0), mLatency(0), 5889 mFlags((audio_output_flags_t)0), mDevice(AUDIO_DEVICE_NONE), mPolicyMix(NULL), 5890 mPatchHandle(0), 5891 mOutput1(0), mOutput2(0), mProfile(profile), mDirectOpenCount(0) 5892{ 5893 // clear usage count for all stream types 5894 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 5895 mRefCount[i] = 0; 5896 mCurVolume[i] = -1.0; 5897 mMuteCount[i] = 0; 5898 mStopTime[i] = 0; 5899 } 5900 for (int i = 0; i < NUM_STRATEGIES; i++) { 5901 mStrategyMutedByDevice[i] = false; 5902 } 5903 if (profile != NULL) { 5904 mFlags = (audio_output_flags_t)profile->mFlags; 5905 mSamplingRate = profile->pickSamplingRate(); 5906 mFormat = profile->pickFormat(); 5907 mChannelMask = profile->pickChannelMask(); 5908 if (profile->mGains.size() > 0) { 5909 profile->mGains[0]->getDefaultConfig(&mGain); 5910 } 5911 } 5912} 5913 5914audio_devices_t AudioPolicyManager::AudioOutputDescriptor::device() const 5915{ 5916 if (isDuplicated()) { 5917 return (audio_devices_t)(mOutput1->mDevice | mOutput2->mDevice); 5918 } else { 5919 return mDevice; 5920 } 5921} 5922 5923uint32_t AudioPolicyManager::AudioOutputDescriptor::latency() 5924{ 5925 if (isDuplicated()) { 5926 return (mOutput1->mLatency > mOutput2->mLatency) ? mOutput1->mLatency : mOutput2->mLatency; 5927 } else { 5928 return mLatency; 5929 } 5930} 5931 5932bool AudioPolicyManager::AudioOutputDescriptor::sharesHwModuleWith( 5933 const sp<AudioOutputDescriptor> outputDesc) 5934{ 5935 if (isDuplicated()) { 5936 return mOutput1->sharesHwModuleWith(outputDesc) || mOutput2->sharesHwModuleWith(outputDesc); 5937 } else if (outputDesc->isDuplicated()){ 5938 return sharesHwModuleWith(outputDesc->mOutput1) || sharesHwModuleWith(outputDesc->mOutput2); 5939 } else { 5940 return (mProfile->mModule == outputDesc->mProfile->mModule); 5941 } 5942} 5943 5944void AudioPolicyManager::AudioOutputDescriptor::changeRefCount(audio_stream_type_t stream, 5945 int delta) 5946{ 5947 // forward usage count change to attached outputs 5948 if (isDuplicated()) { 5949 mOutput1->changeRefCount(stream, delta); 5950 mOutput2->changeRefCount(stream, delta); 5951 } 5952 if ((delta + (int)mRefCount[stream]) < 0) { 5953 ALOGW("changeRefCount() invalid delta %d for stream %d, refCount %d", 5954 delta, stream, mRefCount[stream]); 5955 mRefCount[stream] = 0; 5956 return; 5957 } 5958 mRefCount[stream] += delta; 5959 ALOGV("changeRefCount() stream %d, count %d", stream, mRefCount[stream]); 5960} 5961 5962audio_devices_t AudioPolicyManager::AudioOutputDescriptor::supportedDevices() 5963{ 5964 if (isDuplicated()) { 5965 return (audio_devices_t)(mOutput1->supportedDevices() | mOutput2->supportedDevices()); 5966 } else { 5967 return mProfile->mSupportedDevices.types() ; 5968 } 5969} 5970 5971bool AudioPolicyManager::AudioOutputDescriptor::isActive(uint32_t inPastMs) const 5972{ 5973 return isStrategyActive(NUM_STRATEGIES, inPastMs); 5974} 5975 5976bool AudioPolicyManager::AudioOutputDescriptor::isStrategyActive(routing_strategy strategy, 5977 uint32_t inPastMs, 5978 nsecs_t sysTime) const 5979{ 5980 if ((sysTime == 0) && (inPastMs != 0)) { 5981 sysTime = systemTime(); 5982 } 5983 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 5984 if (i == AUDIO_STREAM_PATCH) { 5985 continue; 5986 } 5987 if (((getStrategy((audio_stream_type_t)i) == strategy) || 5988 (NUM_STRATEGIES == strategy)) && 5989 isStreamActive((audio_stream_type_t)i, inPastMs, sysTime)) { 5990 return true; 5991 } 5992 } 5993 return false; 5994} 5995 5996bool AudioPolicyManager::AudioOutputDescriptor::isStreamActive(audio_stream_type_t stream, 5997 uint32_t inPastMs, 5998 nsecs_t sysTime) const 5999{ 6000 if (mRefCount[stream] != 0) { 6001 return true; 6002 } 6003 if (inPastMs == 0) { 6004 return false; 6005 } 6006 if (sysTime == 0) { 6007 sysTime = systemTime(); 6008 } 6009 if (ns2ms(sysTime - mStopTime[stream]) < inPastMs) { 6010 return true; 6011 } 6012 return false; 6013} 6014 6015void AudioPolicyManager::AudioOutputDescriptor::toAudioPortConfig( 6016 struct audio_port_config *dstConfig, 6017 const struct audio_port_config *srcConfig) const 6018{ 6019 ALOG_ASSERT(!isDuplicated(), "toAudioPortConfig() called on duplicated output %d", mIoHandle); 6020 6021 dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK| 6022 AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN; 6023 if (srcConfig != NULL) { 6024 dstConfig->config_mask |= srcConfig->config_mask; 6025 } 6026 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 6027 6028 dstConfig->id = mId; 6029 dstConfig->role = AUDIO_PORT_ROLE_SOURCE; 6030 dstConfig->type = AUDIO_PORT_TYPE_MIX; 6031 dstConfig->ext.mix.hw_module = mProfile->mModule->mHandle; 6032 dstConfig->ext.mix.handle = mIoHandle; 6033 dstConfig->ext.mix.usecase.stream = AUDIO_STREAM_DEFAULT; 6034} 6035 6036void AudioPolicyManager::AudioOutputDescriptor::toAudioPort( 6037 struct audio_port *port) const 6038{ 6039 ALOG_ASSERT(!isDuplicated(), "toAudioPort() called on duplicated output %d", mIoHandle); 6040 mProfile->toAudioPort(port); 6041 port->id = mId; 6042 toAudioPortConfig(&port->active_config); 6043 port->ext.mix.hw_module = mProfile->mModule->mHandle; 6044 port->ext.mix.handle = mIoHandle; 6045 port->ext.mix.latency_class = 6046 mFlags & AUDIO_OUTPUT_FLAG_FAST ? AUDIO_LATENCY_LOW : AUDIO_LATENCY_NORMAL; 6047} 6048 6049status_t AudioPolicyManager::AudioOutputDescriptor::dump(int fd) 6050{ 6051 const size_t SIZE = 256; 6052 char buffer[SIZE]; 6053 String8 result; 6054 6055 snprintf(buffer, SIZE, " ID: %d\n", mId); 6056 result.append(buffer); 6057 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 6058 result.append(buffer); 6059 snprintf(buffer, SIZE, " Format: %08x\n", mFormat); 6060 result.append(buffer); 6061 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 6062 result.append(buffer); 6063 snprintf(buffer, SIZE, " Latency: %d\n", mLatency); 6064 result.append(buffer); 6065 snprintf(buffer, SIZE, " Flags %08x\n", mFlags); 6066 result.append(buffer); 6067 snprintf(buffer, SIZE, " Devices %08x\n", device()); 6068 result.append(buffer); 6069 snprintf(buffer, SIZE, " Stream volume refCount muteCount\n"); 6070 result.append(buffer); 6071 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 6072 snprintf(buffer, SIZE, " %02d %.03f %02d %02d\n", 6073 i, mCurVolume[i], mRefCount[i], mMuteCount[i]); 6074 result.append(buffer); 6075 } 6076 write(fd, result.string(), result.size()); 6077 6078 return NO_ERROR; 6079} 6080 6081// --- AudioInputDescriptor class implementation 6082 6083AudioPolicyManager::AudioInputDescriptor::AudioInputDescriptor(const sp<IOProfile>& profile) 6084 : mId(0), mIoHandle(0), 6085 mDevice(AUDIO_DEVICE_NONE), mPolicyMix(NULL), mPatchHandle(0), mRefCount(0), 6086 mInputSource(AUDIO_SOURCE_DEFAULT), mProfile(profile), mIsSoundTrigger(false) 6087{ 6088 if (profile != NULL) { 6089 mSamplingRate = profile->pickSamplingRate(); 6090 mFormat = profile->pickFormat(); 6091 mChannelMask = profile->pickChannelMask(); 6092 if (profile->mGains.size() > 0) { 6093 profile->mGains[0]->getDefaultConfig(&mGain); 6094 } 6095 } 6096} 6097 6098void AudioPolicyManager::AudioInputDescriptor::toAudioPortConfig( 6099 struct audio_port_config *dstConfig, 6100 const struct audio_port_config *srcConfig) const 6101{ 6102 ALOG_ASSERT(mProfile != 0, 6103 "toAudioPortConfig() called on input with null profile %d", mIoHandle); 6104 dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK| 6105 AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN; 6106 if (srcConfig != NULL) { 6107 dstConfig->config_mask |= srcConfig->config_mask; 6108 } 6109 6110 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 6111 6112 dstConfig->id = mId; 6113 dstConfig->role = AUDIO_PORT_ROLE_SINK; 6114 dstConfig->type = AUDIO_PORT_TYPE_MIX; 6115 dstConfig->ext.mix.hw_module = mProfile->mModule->mHandle; 6116 dstConfig->ext.mix.handle = mIoHandle; 6117 dstConfig->ext.mix.usecase.source = mInputSource; 6118} 6119 6120void AudioPolicyManager::AudioInputDescriptor::toAudioPort( 6121 struct audio_port *port) const 6122{ 6123 ALOG_ASSERT(mProfile != 0, "toAudioPort() called on input with null profile %d", mIoHandle); 6124 6125 mProfile->toAudioPort(port); 6126 port->id = mId; 6127 toAudioPortConfig(&port->active_config); 6128 port->ext.mix.hw_module = mProfile->mModule->mHandle; 6129 port->ext.mix.handle = mIoHandle; 6130 port->ext.mix.latency_class = AUDIO_LATENCY_NORMAL; 6131} 6132 6133status_t AudioPolicyManager::AudioInputDescriptor::dump(int fd) 6134{ 6135 const size_t SIZE = 256; 6136 char buffer[SIZE]; 6137 String8 result; 6138 6139 snprintf(buffer, SIZE, " ID: %d\n", mId); 6140 result.append(buffer); 6141 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 6142 result.append(buffer); 6143 snprintf(buffer, SIZE, " Format: %d\n", mFormat); 6144 result.append(buffer); 6145 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 6146 result.append(buffer); 6147 snprintf(buffer, SIZE, " Devices %08x\n", mDevice); 6148 result.append(buffer); 6149 snprintf(buffer, SIZE, " Ref Count %d\n", mRefCount); 6150 result.append(buffer); 6151 snprintf(buffer, SIZE, " Open Ref Count %d\n", mOpenRefCount); 6152 result.append(buffer); 6153 6154 write(fd, result.string(), result.size()); 6155 6156 return NO_ERROR; 6157} 6158 6159// --- StreamDescriptor class implementation 6160 6161AudioPolicyManager::StreamDescriptor::StreamDescriptor() 6162 : mIndexMin(0), mIndexMax(1), mCanBeMuted(true) 6163{ 6164 mIndexCur.add(AUDIO_DEVICE_OUT_DEFAULT, 0); 6165} 6166 6167int AudioPolicyManager::StreamDescriptor::getVolumeIndex(audio_devices_t device) 6168{ 6169 device = AudioPolicyManager::getDeviceForVolume(device); 6170 // there is always a valid entry for AUDIO_DEVICE_OUT_DEFAULT 6171 if (mIndexCur.indexOfKey(device) < 0) { 6172 device = AUDIO_DEVICE_OUT_DEFAULT; 6173 } 6174 return mIndexCur.valueFor(device); 6175} 6176 6177void AudioPolicyManager::StreamDescriptor::dump(int fd) 6178{ 6179 const size_t SIZE = 256; 6180 char buffer[SIZE]; 6181 String8 result; 6182 6183 snprintf(buffer, SIZE, "%s %02d %02d ", 6184 mCanBeMuted ? "true " : "false", mIndexMin, mIndexMax); 6185 result.append(buffer); 6186 for (size_t i = 0; i < mIndexCur.size(); i++) { 6187 snprintf(buffer, SIZE, "%04x : %02d, ", 6188 mIndexCur.keyAt(i), 6189 mIndexCur.valueAt(i)); 6190 result.append(buffer); 6191 } 6192 result.append("\n"); 6193 6194 write(fd, result.string(), result.size()); 6195} 6196 6197// --- EffectDescriptor class implementation 6198 6199status_t AudioPolicyManager::EffectDescriptor::dump(int fd) 6200{ 6201 const size_t SIZE = 256; 6202 char buffer[SIZE]; 6203 String8 result; 6204 6205 snprintf(buffer, SIZE, " I/O: %d\n", mIo); 6206 result.append(buffer); 6207 snprintf(buffer, SIZE, " Strategy: %d\n", mStrategy); 6208 result.append(buffer); 6209 snprintf(buffer, SIZE, " Session: %d\n", mSession); 6210 result.append(buffer); 6211 snprintf(buffer, SIZE, " Name: %s\n", mDesc.name); 6212 result.append(buffer); 6213 snprintf(buffer, SIZE, " %s\n", mEnabled ? "Enabled" : "Disabled"); 6214 result.append(buffer); 6215 write(fd, result.string(), result.size()); 6216 6217 return NO_ERROR; 6218} 6219 6220// --- HwModule class implementation 6221 6222AudioPolicyManager::HwModule::HwModule(const char *name) 6223 : mName(strndup(name, AUDIO_HARDWARE_MODULE_ID_MAX_LEN)), 6224 mHalVersion(AUDIO_DEVICE_API_VERSION_MIN), mHandle(0) 6225{ 6226} 6227 6228AudioPolicyManager::HwModule::~HwModule() 6229{ 6230 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 6231 mOutputProfiles[i]->mSupportedDevices.clear(); 6232 } 6233 for (size_t i = 0; i < mInputProfiles.size(); i++) { 6234 mInputProfiles[i]->mSupportedDevices.clear(); 6235 } 6236 free((void *)mName); 6237} 6238 6239status_t AudioPolicyManager::HwModule::loadInput(cnode *root) 6240{ 6241 cnode *node = root->first_child; 6242 6243 sp<IOProfile> profile = new IOProfile(String8(root->name), AUDIO_PORT_ROLE_SINK, this); 6244 6245 while (node) { 6246 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) { 6247 profile->loadSamplingRates((char *)node->value); 6248 } else if (strcmp(node->name, FORMATS_TAG) == 0) { 6249 profile->loadFormats((char *)node->value); 6250 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 6251 profile->loadInChannels((char *)node->value); 6252 } else if (strcmp(node->name, DEVICES_TAG) == 0) { 6253 profile->mSupportedDevices.loadDevicesFromName((char *)node->value, 6254 mDeclaredDevices); 6255 } else if (strcmp(node->name, FLAGS_TAG) == 0) { 6256 profile->mFlags = parseInputFlagNames((char *)node->value); 6257 } else if (strcmp(node->name, GAINS_TAG) == 0) { 6258 profile->loadGains(node); 6259 } 6260 node = node->next; 6261 } 6262 ALOGW_IF(profile->mSupportedDevices.isEmpty(), 6263 "loadInput() invalid supported devices"); 6264 ALOGW_IF(profile->mChannelMasks.size() == 0, 6265 "loadInput() invalid supported channel masks"); 6266 ALOGW_IF(profile->mSamplingRates.size() == 0, 6267 "loadInput() invalid supported sampling rates"); 6268 ALOGW_IF(profile->mFormats.size() == 0, 6269 "loadInput() invalid supported formats"); 6270 if (!profile->mSupportedDevices.isEmpty() && 6271 (profile->mChannelMasks.size() != 0) && 6272 (profile->mSamplingRates.size() != 0) && 6273 (profile->mFormats.size() != 0)) { 6274 6275 ALOGV("loadInput() adding input Supported Devices %04x", 6276 profile->mSupportedDevices.types()); 6277 6278 mInputProfiles.add(profile); 6279 return NO_ERROR; 6280 } else { 6281 return BAD_VALUE; 6282 } 6283} 6284 6285status_t AudioPolicyManager::HwModule::loadOutput(cnode *root) 6286{ 6287 cnode *node = root->first_child; 6288 6289 sp<IOProfile> profile = new IOProfile(String8(root->name), AUDIO_PORT_ROLE_SOURCE, this); 6290 6291 while (node) { 6292 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) { 6293 profile->loadSamplingRates((char *)node->value); 6294 } else if (strcmp(node->name, FORMATS_TAG) == 0) { 6295 profile->loadFormats((char *)node->value); 6296 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 6297 profile->loadOutChannels((char *)node->value); 6298 } else if (strcmp(node->name, DEVICES_TAG) == 0) { 6299 profile->mSupportedDevices.loadDevicesFromName((char *)node->value, 6300 mDeclaredDevices); 6301 } else if (strcmp(node->name, FLAGS_TAG) == 0) { 6302 profile->mFlags = parseOutputFlagNames((char *)node->value); 6303 } else if (strcmp(node->name, GAINS_TAG) == 0) { 6304 profile->loadGains(node); 6305 } 6306 node = node->next; 6307 } 6308 ALOGW_IF(profile->mSupportedDevices.isEmpty(), 6309 "loadOutput() invalid supported devices"); 6310 ALOGW_IF(profile->mChannelMasks.size() == 0, 6311 "loadOutput() invalid supported channel masks"); 6312 ALOGW_IF(profile->mSamplingRates.size() == 0, 6313 "loadOutput() invalid supported sampling rates"); 6314 ALOGW_IF(profile->mFormats.size() == 0, 6315 "loadOutput() invalid supported formats"); 6316 if (!profile->mSupportedDevices.isEmpty() && 6317 (profile->mChannelMasks.size() != 0) && 6318 (profile->mSamplingRates.size() != 0) && 6319 (profile->mFormats.size() != 0)) { 6320 6321 ALOGV("loadOutput() adding output Supported Devices %04x, mFlags %04x", 6322 profile->mSupportedDevices.types(), profile->mFlags); 6323 6324 mOutputProfiles.add(profile); 6325 return NO_ERROR; 6326 } else { 6327 return BAD_VALUE; 6328 } 6329} 6330 6331status_t AudioPolicyManager::HwModule::loadDevice(cnode *root) 6332{ 6333 cnode *node = root->first_child; 6334 6335 audio_devices_t type = AUDIO_DEVICE_NONE; 6336 while (node) { 6337 if (strcmp(node->name, DEVICE_TYPE) == 0) { 6338 type = parseDeviceNames((char *)node->value); 6339 break; 6340 } 6341 node = node->next; 6342 } 6343 if (type == AUDIO_DEVICE_NONE || 6344 (!audio_is_input_device(type) && !audio_is_output_device(type))) { 6345 ALOGW("loadDevice() bad type %08x", type); 6346 return BAD_VALUE; 6347 } 6348 sp<DeviceDescriptor> deviceDesc = new DeviceDescriptor(String8(root->name), type); 6349 deviceDesc->mModule = this; 6350 6351 node = root->first_child; 6352 while (node) { 6353 if (strcmp(node->name, DEVICE_ADDRESS) == 0) { 6354 deviceDesc->mAddress = String8((char *)node->value); 6355 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 6356 if (audio_is_input_device(type)) { 6357 deviceDesc->loadInChannels((char *)node->value); 6358 } else { 6359 deviceDesc->loadOutChannels((char *)node->value); 6360 } 6361 } else if (strcmp(node->name, GAINS_TAG) == 0) { 6362 deviceDesc->loadGains(node); 6363 } 6364 node = node->next; 6365 } 6366 6367 ALOGV("loadDevice() adding device name %s type %08x address %s", 6368 deviceDesc->mName.string(), type, deviceDesc->mAddress.string()); 6369 6370 mDeclaredDevices.add(deviceDesc); 6371 6372 return NO_ERROR; 6373} 6374 6375status_t AudioPolicyManager::HwModule::addOutputProfile(String8 name, const audio_config_t *config, 6376 audio_devices_t device, String8 address) 6377{ 6378 sp<IOProfile> profile = new IOProfile(name, AUDIO_PORT_ROLE_SOURCE, this); 6379 6380 profile->mSamplingRates.add(config->sample_rate); 6381 profile->mChannelMasks.add(config->channel_mask); 6382 profile->mFormats.add(config->format); 6383 6384 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 6385 devDesc->mAddress = address; 6386 profile->mSupportedDevices.add(devDesc); 6387 6388 mOutputProfiles.add(profile); 6389 6390 return NO_ERROR; 6391} 6392 6393status_t AudioPolicyManager::HwModule::removeOutputProfile(String8 name) 6394{ 6395 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 6396 if (mOutputProfiles[i]->mName == name) { 6397 mOutputProfiles.removeAt(i); 6398 break; 6399 } 6400 } 6401 6402 return NO_ERROR; 6403} 6404 6405status_t AudioPolicyManager::HwModule::addInputProfile(String8 name, const audio_config_t *config, 6406 audio_devices_t device, String8 address) 6407{ 6408 sp<IOProfile> profile = new IOProfile(name, AUDIO_PORT_ROLE_SINK, this); 6409 6410 profile->mSamplingRates.add(config->sample_rate); 6411 profile->mChannelMasks.add(config->channel_mask); 6412 profile->mFormats.add(config->format); 6413 6414 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 6415 devDesc->mAddress = address; 6416 profile->mSupportedDevices.add(devDesc); 6417 6418 ALOGV("addInputProfile() name %s rate %d mask 0x08", name.string(), config->sample_rate, config->channel_mask); 6419 6420 mInputProfiles.add(profile); 6421 6422 return NO_ERROR; 6423} 6424 6425status_t AudioPolicyManager::HwModule::removeInputProfile(String8 name) 6426{ 6427 for (size_t i = 0; i < mInputProfiles.size(); i++) { 6428 if (mInputProfiles[i]->mName == name) { 6429 mInputProfiles.removeAt(i); 6430 break; 6431 } 6432 } 6433 6434 return NO_ERROR; 6435} 6436 6437 6438void AudioPolicyManager::HwModule::dump(int fd) 6439{ 6440 const size_t SIZE = 256; 6441 char buffer[SIZE]; 6442 String8 result; 6443 6444 snprintf(buffer, SIZE, " - name: %s\n", mName); 6445 result.append(buffer); 6446 snprintf(buffer, SIZE, " - handle: %d\n", mHandle); 6447 result.append(buffer); 6448 snprintf(buffer, SIZE, " - version: %u.%u\n", mHalVersion >> 8, mHalVersion & 0xFF); 6449 result.append(buffer); 6450 write(fd, result.string(), result.size()); 6451 if (mOutputProfiles.size()) { 6452 write(fd, " - outputs:\n", strlen(" - outputs:\n")); 6453 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 6454 snprintf(buffer, SIZE, " output %zu:\n", i); 6455 write(fd, buffer, strlen(buffer)); 6456 mOutputProfiles[i]->dump(fd); 6457 } 6458 } 6459 if (mInputProfiles.size()) { 6460 write(fd, " - inputs:\n", strlen(" - inputs:\n")); 6461 for (size_t i = 0; i < mInputProfiles.size(); i++) { 6462 snprintf(buffer, SIZE, " input %zu:\n", i); 6463 write(fd, buffer, strlen(buffer)); 6464 mInputProfiles[i]->dump(fd); 6465 } 6466 } 6467 if (mDeclaredDevices.size()) { 6468 write(fd, " - devices:\n", strlen(" - devices:\n")); 6469 for (size_t i = 0; i < mDeclaredDevices.size(); i++) { 6470 mDeclaredDevices[i]->dump(fd, 4, i); 6471 } 6472 } 6473} 6474 6475// --- AudioPort class implementation 6476 6477 6478AudioPolicyManager::AudioPort::AudioPort(const String8& name, audio_port_type_t type, 6479 audio_port_role_t role, const sp<HwModule>& module) : 6480 mName(name), mType(type), mRole(role), mModule(module), mFlags(0) 6481{ 6482 mUseInChannelMask = ((type == AUDIO_PORT_TYPE_DEVICE) && (role == AUDIO_PORT_ROLE_SOURCE)) || 6483 ((type == AUDIO_PORT_TYPE_MIX) && (role == AUDIO_PORT_ROLE_SINK)); 6484} 6485 6486void AudioPolicyManager::AudioPort::toAudioPort(struct audio_port *port) const 6487{ 6488 port->role = mRole; 6489 port->type = mType; 6490 unsigned int i; 6491 for (i = 0; i < mSamplingRates.size() && i < AUDIO_PORT_MAX_SAMPLING_RATES; i++) { 6492 if (mSamplingRates[i] != 0) { 6493 port->sample_rates[i] = mSamplingRates[i]; 6494 } 6495 } 6496 port->num_sample_rates = i; 6497 for (i = 0; i < mChannelMasks.size() && i < AUDIO_PORT_MAX_CHANNEL_MASKS; i++) { 6498 if (mChannelMasks[i] != 0) { 6499 port->channel_masks[i] = mChannelMasks[i]; 6500 } 6501 } 6502 port->num_channel_masks = i; 6503 for (i = 0; i < mFormats.size() && i < AUDIO_PORT_MAX_FORMATS; i++) { 6504 if (mFormats[i] != 0) { 6505 port->formats[i] = mFormats[i]; 6506 } 6507 } 6508 port->num_formats = i; 6509 6510 ALOGV("AudioPort::toAudioPort() num gains %zu", mGains.size()); 6511 6512 for (i = 0; i < mGains.size() && i < AUDIO_PORT_MAX_GAINS; i++) { 6513 port->gains[i] = mGains[i]->mGain; 6514 } 6515 port->num_gains = i; 6516} 6517 6518void AudioPolicyManager::AudioPort::importAudioPort(const sp<AudioPort> port) { 6519 for (size_t k = 0 ; k < port->mSamplingRates.size() ; k++) { 6520 const uint32_t rate = port->mSamplingRates.itemAt(k); 6521 if (rate != 0) { // skip "dynamic" rates 6522 bool hasRate = false; 6523 for (size_t l = 0 ; l < mSamplingRates.size() ; l++) { 6524 if (rate == mSamplingRates.itemAt(l)) { 6525 hasRate = true; 6526 break; 6527 } 6528 } 6529 if (!hasRate) { // never import a sampling rate twice 6530 mSamplingRates.add(rate); 6531 } 6532 } 6533 } 6534 for (size_t k = 0 ; k < port->mChannelMasks.size() ; k++) { 6535 const audio_channel_mask_t mask = port->mChannelMasks.itemAt(k); 6536 if (mask != 0) { // skip "dynamic" masks 6537 bool hasMask = false; 6538 for (size_t l = 0 ; l < mChannelMasks.size() ; l++) { 6539 if (mask == mChannelMasks.itemAt(l)) { 6540 hasMask = true; 6541 break; 6542 } 6543 } 6544 if (!hasMask) { // never import a channel mask twice 6545 mChannelMasks.add(mask); 6546 } 6547 } 6548 } 6549 for (size_t k = 0 ; k < port->mFormats.size() ; k++) { 6550 const audio_format_t format = port->mFormats.itemAt(k); 6551 if (format != 0) { // skip "dynamic" formats 6552 bool hasFormat = false; 6553 for (size_t l = 0 ; l < mFormats.size() ; l++) { 6554 if (format == mFormats.itemAt(l)) { 6555 hasFormat = true; 6556 break; 6557 } 6558 } 6559 if (!hasFormat) { // never import a channel mask twice 6560 mFormats.add(format); 6561 } 6562 } 6563 } 6564 for (size_t k = 0 ; k < port->mGains.size() ; k++) { 6565 sp<AudioGain> gain = port->mGains.itemAt(k); 6566 if (gain != 0) { 6567 bool hasGain = false; 6568 for (size_t l = 0 ; l < mGains.size() ; l++) { 6569 if (gain == mGains.itemAt(l)) { 6570 hasGain = true; 6571 break; 6572 } 6573 } 6574 if (!hasGain) { // never import a gain twice 6575 mGains.add(gain); 6576 } 6577 } 6578 } 6579} 6580 6581void AudioPolicyManager::AudioPort::clearCapabilities() { 6582 mChannelMasks.clear(); 6583 mFormats.clear(); 6584 mSamplingRates.clear(); 6585 mGains.clear(); 6586} 6587 6588void AudioPolicyManager::AudioPort::loadSamplingRates(char *name) 6589{ 6590 char *str = strtok(name, "|"); 6591 6592 // by convention, "0' in the first entry in mSamplingRates indicates the supported sampling 6593 // rates should be read from the output stream after it is opened for the first time 6594 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 6595 mSamplingRates.add(0); 6596 return; 6597 } 6598 6599 while (str != NULL) { 6600 uint32_t rate = atoi(str); 6601 if (rate != 0) { 6602 ALOGV("loadSamplingRates() adding rate %d", rate); 6603 mSamplingRates.add(rate); 6604 } 6605 str = strtok(NULL, "|"); 6606 } 6607} 6608 6609void AudioPolicyManager::AudioPort::loadFormats(char *name) 6610{ 6611 char *str = strtok(name, "|"); 6612 6613 // by convention, "0' in the first entry in mFormats indicates the supported formats 6614 // should be read from the output stream after it is opened for the first time 6615 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 6616 mFormats.add(AUDIO_FORMAT_DEFAULT); 6617 return; 6618 } 6619 6620 while (str != NULL) { 6621 audio_format_t format = (audio_format_t)stringToEnum(sFormatNameToEnumTable, 6622 ARRAY_SIZE(sFormatNameToEnumTable), 6623 str); 6624 if (format != AUDIO_FORMAT_DEFAULT) { 6625 mFormats.add(format); 6626 } 6627 str = strtok(NULL, "|"); 6628 } 6629} 6630 6631void AudioPolicyManager::AudioPort::loadInChannels(char *name) 6632{ 6633 const char *str = strtok(name, "|"); 6634 6635 ALOGV("loadInChannels() %s", name); 6636 6637 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 6638 mChannelMasks.add(0); 6639 return; 6640 } 6641 6642 while (str != NULL) { 6643 audio_channel_mask_t channelMask = 6644 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable, 6645 ARRAY_SIZE(sInChannelsNameToEnumTable), 6646 str); 6647 if (channelMask != 0) { 6648 ALOGV("loadInChannels() adding channelMask %04x", channelMask); 6649 mChannelMasks.add(channelMask); 6650 } 6651 str = strtok(NULL, "|"); 6652 } 6653} 6654 6655void AudioPolicyManager::AudioPort::loadOutChannels(char *name) 6656{ 6657 const char *str = strtok(name, "|"); 6658 6659 ALOGV("loadOutChannels() %s", name); 6660 6661 // by convention, "0' in the first entry in mChannelMasks indicates the supported channel 6662 // masks should be read from the output stream after it is opened for the first time 6663 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 6664 mChannelMasks.add(0); 6665 return; 6666 } 6667 6668 while (str != NULL) { 6669 audio_channel_mask_t channelMask = 6670 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable, 6671 ARRAY_SIZE(sOutChannelsNameToEnumTable), 6672 str); 6673 if (channelMask != 0) { 6674 mChannelMasks.add(channelMask); 6675 } 6676 str = strtok(NULL, "|"); 6677 } 6678 return; 6679} 6680 6681audio_gain_mode_t AudioPolicyManager::AudioPort::loadGainMode(char *name) 6682{ 6683 const char *str = strtok(name, "|"); 6684 6685 ALOGV("loadGainMode() %s", name); 6686 audio_gain_mode_t mode = 0; 6687 while (str != NULL) { 6688 mode |= (audio_gain_mode_t)stringToEnum(sGainModeNameToEnumTable, 6689 ARRAY_SIZE(sGainModeNameToEnumTable), 6690 str); 6691 str = strtok(NULL, "|"); 6692 } 6693 return mode; 6694} 6695 6696void AudioPolicyManager::AudioPort::loadGain(cnode *root, int index) 6697{ 6698 cnode *node = root->first_child; 6699 6700 sp<AudioGain> gain = new AudioGain(index, mUseInChannelMask); 6701 6702 while (node) { 6703 if (strcmp(node->name, GAIN_MODE) == 0) { 6704 gain->mGain.mode = loadGainMode((char *)node->value); 6705 } else if (strcmp(node->name, GAIN_CHANNELS) == 0) { 6706 if (mUseInChannelMask) { 6707 gain->mGain.channel_mask = 6708 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable, 6709 ARRAY_SIZE(sInChannelsNameToEnumTable), 6710 (char *)node->value); 6711 } else { 6712 gain->mGain.channel_mask = 6713 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable, 6714 ARRAY_SIZE(sOutChannelsNameToEnumTable), 6715 (char *)node->value); 6716 } 6717 } else if (strcmp(node->name, GAIN_MIN_VALUE) == 0) { 6718 gain->mGain.min_value = atoi((char *)node->value); 6719 } else if (strcmp(node->name, GAIN_MAX_VALUE) == 0) { 6720 gain->mGain.max_value = atoi((char *)node->value); 6721 } else if (strcmp(node->name, GAIN_DEFAULT_VALUE) == 0) { 6722 gain->mGain.default_value = atoi((char *)node->value); 6723 } else if (strcmp(node->name, GAIN_STEP_VALUE) == 0) { 6724 gain->mGain.step_value = atoi((char *)node->value); 6725 } else if (strcmp(node->name, GAIN_MIN_RAMP_MS) == 0) { 6726 gain->mGain.min_ramp_ms = atoi((char *)node->value); 6727 } else if (strcmp(node->name, GAIN_MAX_RAMP_MS) == 0) { 6728 gain->mGain.max_ramp_ms = atoi((char *)node->value); 6729 } 6730 node = node->next; 6731 } 6732 6733 ALOGV("loadGain() adding new gain mode %08x channel mask %08x min mB %d max mB %d", 6734 gain->mGain.mode, gain->mGain.channel_mask, gain->mGain.min_value, gain->mGain.max_value); 6735 6736 if (gain->mGain.mode == 0) { 6737 return; 6738 } 6739 mGains.add(gain); 6740} 6741 6742void AudioPolicyManager::AudioPort::loadGains(cnode *root) 6743{ 6744 cnode *node = root->first_child; 6745 int index = 0; 6746 while (node) { 6747 ALOGV("loadGains() loading gain %s", node->name); 6748 loadGain(node, index++); 6749 node = node->next; 6750 } 6751} 6752 6753status_t AudioPolicyManager::AudioPort::checkExactSamplingRate(uint32_t samplingRate) const 6754{ 6755 if (mSamplingRates.isEmpty()) { 6756 return NO_ERROR; 6757 } 6758 6759 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 6760 if (mSamplingRates[i] == samplingRate) { 6761 return NO_ERROR; 6762 } 6763 } 6764 return BAD_VALUE; 6765} 6766 6767status_t AudioPolicyManager::AudioPort::checkCompatibleSamplingRate(uint32_t samplingRate, 6768 uint32_t *updatedSamplingRate) const 6769{ 6770 if (mSamplingRates.isEmpty()) { 6771 return NO_ERROR; 6772 } 6773 6774 // Search for the closest supported sampling rate that is above (preferred) 6775 // or below (acceptable) the desired sampling rate, within a permitted ratio. 6776 // The sampling rates do not need to be sorted in ascending order. 6777 ssize_t maxBelow = -1; 6778 ssize_t minAbove = -1; 6779 uint32_t candidate; 6780 for (size_t i = 0; i < mSamplingRates.size(); i++) { 6781 candidate = mSamplingRates[i]; 6782 if (candidate == samplingRate) { 6783 if (updatedSamplingRate != NULL) { 6784 *updatedSamplingRate = candidate; 6785 } 6786 return NO_ERROR; 6787 } 6788 // candidate < desired 6789 if (candidate < samplingRate) { 6790 if (maxBelow < 0 || candidate > mSamplingRates[maxBelow]) { 6791 maxBelow = i; 6792 } 6793 // candidate > desired 6794 } else { 6795 if (minAbove < 0 || candidate < mSamplingRates[minAbove]) { 6796 minAbove = i; 6797 } 6798 } 6799 } 6800 // This uses hard-coded knowledge about AudioFlinger resampling ratios. 6801 // TODO Move these assumptions out. 6802 static const uint32_t kMaxDownSampleRatio = 6; // beyond this aliasing occurs 6803 static const uint32_t kMaxUpSampleRatio = 256; // beyond this sample rate inaccuracies occur 6804 // due to approximation by an int32_t of the 6805 // phase increments 6806 // Prefer to down-sample from a higher sampling rate, as we get the desired frequency spectrum. 6807 if (minAbove >= 0) { 6808 candidate = mSamplingRates[minAbove]; 6809 if (candidate / kMaxDownSampleRatio <= samplingRate) { 6810 if (updatedSamplingRate != NULL) { 6811 *updatedSamplingRate = candidate; 6812 } 6813 return NO_ERROR; 6814 } 6815 } 6816 // But if we have to up-sample from a lower sampling rate, that's OK. 6817 if (maxBelow >= 0) { 6818 candidate = mSamplingRates[maxBelow]; 6819 if (candidate * kMaxUpSampleRatio >= samplingRate) { 6820 if (updatedSamplingRate != NULL) { 6821 *updatedSamplingRate = candidate; 6822 } 6823 return NO_ERROR; 6824 } 6825 } 6826 // leave updatedSamplingRate unmodified 6827 return BAD_VALUE; 6828} 6829 6830status_t AudioPolicyManager::AudioPort::checkExactChannelMask(audio_channel_mask_t channelMask) const 6831{ 6832 if (mChannelMasks.isEmpty()) { 6833 return NO_ERROR; 6834 } 6835 6836 for (size_t i = 0; i < mChannelMasks.size(); i++) { 6837 if (mChannelMasks[i] == channelMask) { 6838 return NO_ERROR; 6839 } 6840 } 6841 return BAD_VALUE; 6842} 6843 6844status_t AudioPolicyManager::AudioPort::checkCompatibleChannelMask(audio_channel_mask_t channelMask) 6845 const 6846{ 6847 if (mChannelMasks.isEmpty()) { 6848 return NO_ERROR; 6849 } 6850 6851 const bool isRecordThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SINK; 6852 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 6853 // FIXME Does not handle multi-channel automatic conversions yet 6854 audio_channel_mask_t supported = mChannelMasks[i]; 6855 if (supported == channelMask) { 6856 return NO_ERROR; 6857 } 6858 if (isRecordThread) { 6859 // This uses hard-coded knowledge that AudioFlinger can silently down-mix and up-mix. 6860 // FIXME Abstract this out to a table. 6861 if (((supported == AUDIO_CHANNEL_IN_FRONT_BACK || supported == AUDIO_CHANNEL_IN_STEREO) 6862 && channelMask == AUDIO_CHANNEL_IN_MONO) || 6863 (supported == AUDIO_CHANNEL_IN_MONO && (channelMask == AUDIO_CHANNEL_IN_FRONT_BACK 6864 || channelMask == AUDIO_CHANNEL_IN_STEREO))) { 6865 return NO_ERROR; 6866 } 6867 } 6868 } 6869 return BAD_VALUE; 6870} 6871 6872status_t AudioPolicyManager::AudioPort::checkFormat(audio_format_t format) const 6873{ 6874 if (mFormats.isEmpty()) { 6875 return NO_ERROR; 6876 } 6877 6878 for (size_t i = 0; i < mFormats.size(); i ++) { 6879 if (mFormats[i] == format) { 6880 return NO_ERROR; 6881 } 6882 } 6883 return BAD_VALUE; 6884} 6885 6886 6887uint32_t AudioPolicyManager::AudioPort::pickSamplingRate() const 6888{ 6889 // special case for uninitialized dynamic profile 6890 if (mSamplingRates.size() == 1 && mSamplingRates[0] == 0) { 6891 return 0; 6892 } 6893 6894 // For direct outputs, pick minimum sampling rate: this helps ensuring that the 6895 // channel count / sampling rate combination chosen will be supported by the connected 6896 // sink 6897 if ((mType == AUDIO_PORT_TYPE_MIX) && (mRole == AUDIO_PORT_ROLE_SOURCE) && 6898 (mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD))) { 6899 uint32_t samplingRate = UINT_MAX; 6900 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 6901 if ((mSamplingRates[i] < samplingRate) && (mSamplingRates[i] > 0)) { 6902 samplingRate = mSamplingRates[i]; 6903 } 6904 } 6905 return (samplingRate == UINT_MAX) ? 0 : samplingRate; 6906 } 6907 6908 uint32_t samplingRate = 0; 6909 uint32_t maxRate = MAX_MIXER_SAMPLING_RATE; 6910 6911 // For mixed output and inputs, use max mixer sampling rates. Do not 6912 // limit sampling rate otherwise 6913 if (mType != AUDIO_PORT_TYPE_MIX) { 6914 maxRate = UINT_MAX; 6915 } 6916 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 6917 if ((mSamplingRates[i] > samplingRate) && (mSamplingRates[i] <= maxRate)) { 6918 samplingRate = mSamplingRates[i]; 6919 } 6920 } 6921 return samplingRate; 6922} 6923 6924audio_channel_mask_t AudioPolicyManager::AudioPort::pickChannelMask() const 6925{ 6926 // special case for uninitialized dynamic profile 6927 if (mChannelMasks.size() == 1 && mChannelMasks[0] == 0) { 6928 return AUDIO_CHANNEL_NONE; 6929 } 6930 audio_channel_mask_t channelMask = AUDIO_CHANNEL_NONE; 6931 6932 // For direct outputs, pick minimum channel count: this helps ensuring that the 6933 // channel count / sampling rate combination chosen will be supported by the connected 6934 // sink 6935 if ((mType == AUDIO_PORT_TYPE_MIX) && (mRole == AUDIO_PORT_ROLE_SOURCE) && 6936 (mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD))) { 6937 uint32_t channelCount = UINT_MAX; 6938 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 6939 uint32_t cnlCount; 6940 if (mUseInChannelMask) { 6941 cnlCount = audio_channel_count_from_in_mask(mChannelMasks[i]); 6942 } else { 6943 cnlCount = audio_channel_count_from_out_mask(mChannelMasks[i]); 6944 } 6945 if ((cnlCount < channelCount) && (cnlCount > 0)) { 6946 channelMask = mChannelMasks[i]; 6947 channelCount = cnlCount; 6948 } 6949 } 6950 return channelMask; 6951 } 6952 6953 uint32_t channelCount = 0; 6954 uint32_t maxCount = MAX_MIXER_CHANNEL_COUNT; 6955 6956 // For mixed output and inputs, use max mixer channel count. Do not 6957 // limit channel count otherwise 6958 if (mType != AUDIO_PORT_TYPE_MIX) { 6959 maxCount = UINT_MAX; 6960 } 6961 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 6962 uint32_t cnlCount; 6963 if (mUseInChannelMask) { 6964 cnlCount = audio_channel_count_from_in_mask(mChannelMasks[i]); 6965 } else { 6966 cnlCount = audio_channel_count_from_out_mask(mChannelMasks[i]); 6967 } 6968 if ((cnlCount > channelCount) && (cnlCount <= maxCount)) { 6969 channelMask = mChannelMasks[i]; 6970 channelCount = cnlCount; 6971 } 6972 } 6973 return channelMask; 6974} 6975 6976/* format in order of increasing preference */ 6977const audio_format_t AudioPolicyManager::AudioPort::sPcmFormatCompareTable[] = { 6978 AUDIO_FORMAT_DEFAULT, 6979 AUDIO_FORMAT_PCM_16_BIT, 6980 AUDIO_FORMAT_PCM_8_24_BIT, 6981 AUDIO_FORMAT_PCM_24_BIT_PACKED, 6982 AUDIO_FORMAT_PCM_32_BIT, 6983 AUDIO_FORMAT_PCM_FLOAT, 6984}; 6985 6986int AudioPolicyManager::AudioPort::compareFormats(audio_format_t format1, 6987 audio_format_t format2) 6988{ 6989 // NOTE: AUDIO_FORMAT_INVALID is also considered not PCM and will be compared equal to any 6990 // compressed format and better than any PCM format. This is by design of pickFormat() 6991 if (!audio_is_linear_pcm(format1)) { 6992 if (!audio_is_linear_pcm(format2)) { 6993 return 0; 6994 } 6995 return 1; 6996 } 6997 if (!audio_is_linear_pcm(format2)) { 6998 return -1; 6999 } 7000 7001 int index1 = -1, index2 = -1; 7002 for (size_t i = 0; 7003 (i < ARRAY_SIZE(sPcmFormatCompareTable)) && ((index1 == -1) || (index2 == -1)); 7004 i ++) { 7005 if (sPcmFormatCompareTable[i] == format1) { 7006 index1 = i; 7007 } 7008 if (sPcmFormatCompareTable[i] == format2) { 7009 index2 = i; 7010 } 7011 } 7012 // format1 not found => index1 < 0 => format2 > format1 7013 // format2 not found => index2 < 0 => format2 < format1 7014 return index1 - index2; 7015} 7016 7017audio_format_t AudioPolicyManager::AudioPort::pickFormat() const 7018{ 7019 // special case for uninitialized dynamic profile 7020 if (mFormats.size() == 1 && mFormats[0] == 0) { 7021 return AUDIO_FORMAT_DEFAULT; 7022 } 7023 7024 audio_format_t format = AUDIO_FORMAT_DEFAULT; 7025 audio_format_t bestFormat = 7026 AudioPolicyManager::AudioPort::sPcmFormatCompareTable[ 7027 ARRAY_SIZE(AudioPolicyManager::AudioPort::sPcmFormatCompareTable) - 1]; 7028 // For mixed output and inputs, use best mixer output format. Do not 7029 // limit format otherwise 7030 if ((mType != AUDIO_PORT_TYPE_MIX) || 7031 ((mRole == AUDIO_PORT_ROLE_SOURCE) && 7032 (((mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)) != 0)))) { 7033 bestFormat = AUDIO_FORMAT_INVALID; 7034 } 7035 7036 for (size_t i = 0; i < mFormats.size(); i ++) { 7037 if ((compareFormats(mFormats[i], format) > 0) && 7038 (compareFormats(mFormats[i], bestFormat) <= 0)) { 7039 format = mFormats[i]; 7040 } 7041 } 7042 return format; 7043} 7044 7045status_t AudioPolicyManager::AudioPort::checkGain(const struct audio_gain_config *gainConfig, 7046 int index) const 7047{ 7048 if (index < 0 || (size_t)index >= mGains.size()) { 7049 return BAD_VALUE; 7050 } 7051 return mGains[index]->checkConfig(gainConfig); 7052} 7053 7054void AudioPolicyManager::AudioPort::dump(int fd, int spaces) const 7055{ 7056 const size_t SIZE = 256; 7057 char buffer[SIZE]; 7058 String8 result; 7059 7060 if (mName.size() != 0) { 7061 snprintf(buffer, SIZE, "%*s- name: %s\n", spaces, "", mName.string()); 7062 result.append(buffer); 7063 } 7064 7065 if (mSamplingRates.size() != 0) { 7066 snprintf(buffer, SIZE, "%*s- sampling rates: ", spaces, ""); 7067 result.append(buffer); 7068 for (size_t i = 0; i < mSamplingRates.size(); i++) { 7069 if (i == 0 && mSamplingRates[i] == 0) { 7070 snprintf(buffer, SIZE, "Dynamic"); 7071 } else { 7072 snprintf(buffer, SIZE, "%d", mSamplingRates[i]); 7073 } 7074 result.append(buffer); 7075 result.append(i == (mSamplingRates.size() - 1) ? "" : ", "); 7076 } 7077 result.append("\n"); 7078 } 7079 7080 if (mChannelMasks.size() != 0) { 7081 snprintf(buffer, SIZE, "%*s- channel masks: ", spaces, ""); 7082 result.append(buffer); 7083 for (size_t i = 0; i < mChannelMasks.size(); i++) { 7084 ALOGV("AudioPort::dump mChannelMasks %zu %08x", i, mChannelMasks[i]); 7085 7086 if (i == 0 && mChannelMasks[i] == 0) { 7087 snprintf(buffer, SIZE, "Dynamic"); 7088 } else { 7089 snprintf(buffer, SIZE, "0x%04x", mChannelMasks[i]); 7090 } 7091 result.append(buffer); 7092 result.append(i == (mChannelMasks.size() - 1) ? "" : ", "); 7093 } 7094 result.append("\n"); 7095 } 7096 7097 if (mFormats.size() != 0) { 7098 snprintf(buffer, SIZE, "%*s- formats: ", spaces, ""); 7099 result.append(buffer); 7100 for (size_t i = 0; i < mFormats.size(); i++) { 7101 const char *formatStr = enumToString(sFormatNameToEnumTable, 7102 ARRAY_SIZE(sFormatNameToEnumTable), 7103 mFormats[i]); 7104 if (i == 0 && strcmp(formatStr, "") == 0) { 7105 snprintf(buffer, SIZE, "Dynamic"); 7106 } else { 7107 snprintf(buffer, SIZE, "%s", formatStr); 7108 } 7109 result.append(buffer); 7110 result.append(i == (mFormats.size() - 1) ? "" : ", "); 7111 } 7112 result.append("\n"); 7113 } 7114 write(fd, result.string(), result.size()); 7115 if (mGains.size() != 0) { 7116 snprintf(buffer, SIZE, "%*s- gains:\n", spaces, ""); 7117 write(fd, buffer, strlen(buffer) + 1); 7118 result.append(buffer); 7119 for (size_t i = 0; i < mGains.size(); i++) { 7120 mGains[i]->dump(fd, spaces + 2, i); 7121 } 7122 } 7123} 7124 7125// --- AudioGain class implementation 7126 7127AudioPolicyManager::AudioGain::AudioGain(int index, bool useInChannelMask) 7128{ 7129 mIndex = index; 7130 mUseInChannelMask = useInChannelMask; 7131 memset(&mGain, 0, sizeof(struct audio_gain)); 7132} 7133 7134void AudioPolicyManager::AudioGain::getDefaultConfig(struct audio_gain_config *config) 7135{ 7136 config->index = mIndex; 7137 config->mode = mGain.mode; 7138 config->channel_mask = mGain.channel_mask; 7139 if ((mGain.mode & AUDIO_GAIN_MODE_JOINT) == AUDIO_GAIN_MODE_JOINT) { 7140 config->values[0] = mGain.default_value; 7141 } else { 7142 uint32_t numValues; 7143 if (mUseInChannelMask) { 7144 numValues = audio_channel_count_from_in_mask(mGain.channel_mask); 7145 } else { 7146 numValues = audio_channel_count_from_out_mask(mGain.channel_mask); 7147 } 7148 for (size_t i = 0; i < numValues; i++) { 7149 config->values[i] = mGain.default_value; 7150 } 7151 } 7152 if ((mGain.mode & AUDIO_GAIN_MODE_RAMP) == AUDIO_GAIN_MODE_RAMP) { 7153 config->ramp_duration_ms = mGain.min_ramp_ms; 7154 } 7155} 7156 7157status_t AudioPolicyManager::AudioGain::checkConfig(const struct audio_gain_config *config) 7158{ 7159 if ((config->mode & ~mGain.mode) != 0) { 7160 return BAD_VALUE; 7161 } 7162 if ((config->mode & AUDIO_GAIN_MODE_JOINT) == AUDIO_GAIN_MODE_JOINT) { 7163 if ((config->values[0] < mGain.min_value) || 7164 (config->values[0] > mGain.max_value)) { 7165 return BAD_VALUE; 7166 } 7167 } else { 7168 if ((config->channel_mask & ~mGain.channel_mask) != 0) { 7169 return BAD_VALUE; 7170 } 7171 uint32_t numValues; 7172 if (mUseInChannelMask) { 7173 numValues = audio_channel_count_from_in_mask(config->channel_mask); 7174 } else { 7175 numValues = audio_channel_count_from_out_mask(config->channel_mask); 7176 } 7177 for (size_t i = 0; i < numValues; i++) { 7178 if ((config->values[i] < mGain.min_value) || 7179 (config->values[i] > mGain.max_value)) { 7180 return BAD_VALUE; 7181 } 7182 } 7183 } 7184 if ((config->mode & AUDIO_GAIN_MODE_RAMP) == AUDIO_GAIN_MODE_RAMP) { 7185 if ((config->ramp_duration_ms < mGain.min_ramp_ms) || 7186 (config->ramp_duration_ms > mGain.max_ramp_ms)) { 7187 return BAD_VALUE; 7188 } 7189 } 7190 return NO_ERROR; 7191} 7192 7193void AudioPolicyManager::AudioGain::dump(int fd, int spaces, int index) const 7194{ 7195 const size_t SIZE = 256; 7196 char buffer[SIZE]; 7197 String8 result; 7198 7199 snprintf(buffer, SIZE, "%*sGain %d:\n", spaces, "", index+1); 7200 result.append(buffer); 7201 snprintf(buffer, SIZE, "%*s- mode: %08x\n", spaces, "", mGain.mode); 7202 result.append(buffer); 7203 snprintf(buffer, SIZE, "%*s- channel_mask: %08x\n", spaces, "", mGain.channel_mask); 7204 result.append(buffer); 7205 snprintf(buffer, SIZE, "%*s- min_value: %d mB\n", spaces, "", mGain.min_value); 7206 result.append(buffer); 7207 snprintf(buffer, SIZE, "%*s- max_value: %d mB\n", spaces, "", mGain.max_value); 7208 result.append(buffer); 7209 snprintf(buffer, SIZE, "%*s- default_value: %d mB\n", spaces, "", mGain.default_value); 7210 result.append(buffer); 7211 snprintf(buffer, SIZE, "%*s- step_value: %d mB\n", spaces, "", mGain.step_value); 7212 result.append(buffer); 7213 snprintf(buffer, SIZE, "%*s- min_ramp_ms: %d ms\n", spaces, "", mGain.min_ramp_ms); 7214 result.append(buffer); 7215 snprintf(buffer, SIZE, "%*s- max_ramp_ms: %d ms\n", spaces, "", mGain.max_ramp_ms); 7216 result.append(buffer); 7217 7218 write(fd, result.string(), result.size()); 7219} 7220 7221// --- AudioPortConfig class implementation 7222 7223AudioPolicyManager::AudioPortConfig::AudioPortConfig() 7224{ 7225 mSamplingRate = 0; 7226 mChannelMask = AUDIO_CHANNEL_NONE; 7227 mFormat = AUDIO_FORMAT_INVALID; 7228 mGain.index = -1; 7229} 7230 7231status_t AudioPolicyManager::AudioPortConfig::applyAudioPortConfig( 7232 const struct audio_port_config *config, 7233 struct audio_port_config *backupConfig) 7234{ 7235 struct audio_port_config localBackupConfig; 7236 status_t status = NO_ERROR; 7237 7238 localBackupConfig.config_mask = config->config_mask; 7239 toAudioPortConfig(&localBackupConfig); 7240 7241 sp<AudioPort> audioport = getAudioPort(); 7242 if (audioport == 0) { 7243 status = NO_INIT; 7244 goto exit; 7245 } 7246 if (config->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { 7247 status = audioport->checkExactSamplingRate(config->sample_rate); 7248 if (status != NO_ERROR) { 7249 goto exit; 7250 } 7251 mSamplingRate = config->sample_rate; 7252 } 7253 if (config->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { 7254 status = audioport->checkExactChannelMask(config->channel_mask); 7255 if (status != NO_ERROR) { 7256 goto exit; 7257 } 7258 mChannelMask = config->channel_mask; 7259 } 7260 if (config->config_mask & AUDIO_PORT_CONFIG_FORMAT) { 7261 status = audioport->checkFormat(config->format); 7262 if (status != NO_ERROR) { 7263 goto exit; 7264 } 7265 mFormat = config->format; 7266 } 7267 if (config->config_mask & AUDIO_PORT_CONFIG_GAIN) { 7268 status = audioport->checkGain(&config->gain, config->gain.index); 7269 if (status != NO_ERROR) { 7270 goto exit; 7271 } 7272 mGain = config->gain; 7273 } 7274 7275exit: 7276 if (status != NO_ERROR) { 7277 applyAudioPortConfig(&localBackupConfig); 7278 } 7279 if (backupConfig != NULL) { 7280 *backupConfig = localBackupConfig; 7281 } 7282 return status; 7283} 7284 7285void AudioPolicyManager::AudioPortConfig::toAudioPortConfig( 7286 struct audio_port_config *dstConfig, 7287 const struct audio_port_config *srcConfig) const 7288{ 7289 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { 7290 dstConfig->sample_rate = mSamplingRate; 7291 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE)) { 7292 dstConfig->sample_rate = srcConfig->sample_rate; 7293 } 7294 } else { 7295 dstConfig->sample_rate = 0; 7296 } 7297 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { 7298 dstConfig->channel_mask = mChannelMask; 7299 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK)) { 7300 dstConfig->channel_mask = srcConfig->channel_mask; 7301 } 7302 } else { 7303 dstConfig->channel_mask = AUDIO_CHANNEL_NONE; 7304 } 7305 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_FORMAT) { 7306 dstConfig->format = mFormat; 7307 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_FORMAT)) { 7308 dstConfig->format = srcConfig->format; 7309 } 7310 } else { 7311 dstConfig->format = AUDIO_FORMAT_INVALID; 7312 } 7313 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_GAIN) { 7314 dstConfig->gain = mGain; 7315 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_GAIN)) { 7316 dstConfig->gain = srcConfig->gain; 7317 } 7318 } else { 7319 dstConfig->gain.index = -1; 7320 } 7321 if (dstConfig->gain.index != -1) { 7322 dstConfig->config_mask |= AUDIO_PORT_CONFIG_GAIN; 7323 } else { 7324 dstConfig->config_mask &= ~AUDIO_PORT_CONFIG_GAIN; 7325 } 7326} 7327 7328// --- IOProfile class implementation 7329 7330AudioPolicyManager::IOProfile::IOProfile(const String8& name, audio_port_role_t role, 7331 const sp<HwModule>& module) 7332 : AudioPort(name, AUDIO_PORT_TYPE_MIX, role, module) 7333{ 7334} 7335 7336AudioPolicyManager::IOProfile::~IOProfile() 7337{ 7338} 7339 7340// checks if the IO profile is compatible with specified parameters. 7341// Sampling rate, format and channel mask must be specified in order to 7342// get a valid a match 7343bool AudioPolicyManager::IOProfile::isCompatibleProfile(audio_devices_t device, 7344 String8 address, 7345 uint32_t samplingRate, 7346 uint32_t *updatedSamplingRate, 7347 audio_format_t format, 7348 audio_channel_mask_t channelMask, 7349 uint32_t flags) const 7350{ 7351 const bool isPlaybackThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SOURCE; 7352 const bool isRecordThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SINK; 7353 ALOG_ASSERT(isPlaybackThread != isRecordThread); 7354 7355 if (device != AUDIO_DEVICE_NONE && mSupportedDevices.getDevice(device, address) == 0) { 7356 return false; 7357 } 7358 7359 if (samplingRate == 0) { 7360 return false; 7361 } 7362 uint32_t myUpdatedSamplingRate = samplingRate; 7363 if (isPlaybackThread && checkExactSamplingRate(samplingRate) != NO_ERROR) { 7364 return false; 7365 } 7366 if (isRecordThread && checkCompatibleSamplingRate(samplingRate, &myUpdatedSamplingRate) != 7367 NO_ERROR) { 7368 return false; 7369 } 7370 7371 if (!audio_is_valid_format(format) || checkFormat(format) != NO_ERROR) { 7372 return false; 7373 } 7374 7375 if (isPlaybackThread && (!audio_is_output_channel(channelMask) || 7376 checkExactChannelMask(channelMask) != NO_ERROR)) { 7377 return false; 7378 } 7379 if (isRecordThread && (!audio_is_input_channel(channelMask) || 7380 checkCompatibleChannelMask(channelMask) != NO_ERROR)) { 7381 return false; 7382 } 7383 7384 if (isPlaybackThread && (mFlags & flags) != flags) { 7385 return false; 7386 } 7387 // The only input flag that is allowed to be different is the fast flag. 7388 // An existing fast stream is compatible with a normal track request. 7389 // An existing normal stream is compatible with a fast track request, 7390 // but the fast request will be denied by AudioFlinger and converted to normal track. 7391 if (isRecordThread && ((mFlags ^ flags) & 7392 ~AUDIO_INPUT_FLAG_FAST)) { 7393 return false; 7394 } 7395 7396 if (updatedSamplingRate != NULL) { 7397 *updatedSamplingRate = myUpdatedSamplingRate; 7398 } 7399 return true; 7400} 7401 7402void AudioPolicyManager::IOProfile::dump(int fd) 7403{ 7404 const size_t SIZE = 256; 7405 char buffer[SIZE]; 7406 String8 result; 7407 7408 AudioPort::dump(fd, 4); 7409 7410 snprintf(buffer, SIZE, " - flags: 0x%04x\n", mFlags); 7411 result.append(buffer); 7412 snprintf(buffer, SIZE, " - devices:\n"); 7413 result.append(buffer); 7414 write(fd, result.string(), result.size()); 7415 for (size_t i = 0; i < mSupportedDevices.size(); i++) { 7416 mSupportedDevices[i]->dump(fd, 6, i); 7417 } 7418} 7419 7420void AudioPolicyManager::IOProfile::log() 7421{ 7422 const size_t SIZE = 256; 7423 char buffer[SIZE]; 7424 String8 result; 7425 7426 ALOGV(" - sampling rates: "); 7427 for (size_t i = 0; i < mSamplingRates.size(); i++) { 7428 ALOGV(" %d", mSamplingRates[i]); 7429 } 7430 7431 ALOGV(" - channel masks: "); 7432 for (size_t i = 0; i < mChannelMasks.size(); i++) { 7433 ALOGV(" 0x%04x", mChannelMasks[i]); 7434 } 7435 7436 ALOGV(" - formats: "); 7437 for (size_t i = 0; i < mFormats.size(); i++) { 7438 ALOGV(" 0x%08x", mFormats[i]); 7439 } 7440 7441 ALOGV(" - devices: 0x%04x\n", mSupportedDevices.types()); 7442 ALOGV(" - flags: 0x%04x\n", mFlags); 7443} 7444 7445 7446// --- DeviceDescriptor implementation 7447 7448 7449AudioPolicyManager::DeviceDescriptor::DeviceDescriptor(const String8& name, audio_devices_t type) : 7450 AudioPort(name, AUDIO_PORT_TYPE_DEVICE, 7451 audio_is_output_device(type) ? AUDIO_PORT_ROLE_SINK : 7452 AUDIO_PORT_ROLE_SOURCE, 7453 NULL), 7454 mDeviceType(type), mAddress(""), mId(0) 7455{ 7456} 7457 7458bool AudioPolicyManager::DeviceDescriptor::equals(const sp<DeviceDescriptor>& other) const 7459{ 7460 // Devices are considered equal if they: 7461 // - are of the same type (a device type cannot be AUDIO_DEVICE_NONE) 7462 // - have the same address or one device does not specify the address 7463 // - have the same channel mask or one device does not specify the channel mask 7464 return (mDeviceType == other->mDeviceType) && 7465 (mAddress == "" || other->mAddress == "" || mAddress == other->mAddress) && 7466 (mChannelMask == 0 || other->mChannelMask == 0 || 7467 mChannelMask == other->mChannelMask); 7468} 7469 7470void AudioPolicyManager::DeviceDescriptor::loadGains(cnode *root) 7471{ 7472 AudioPort::loadGains(root); 7473 if (mGains.size() > 0) { 7474 mGains[0]->getDefaultConfig(&mGain); 7475 } 7476} 7477 7478 7479void AudioPolicyManager::DeviceVector::refreshTypes() 7480{ 7481 mDeviceTypes = AUDIO_DEVICE_NONE; 7482 for(size_t i = 0; i < size(); i++) { 7483 mDeviceTypes |= itemAt(i)->mDeviceType; 7484 } 7485 ALOGV("DeviceVector::refreshTypes() mDeviceTypes %08x", mDeviceTypes); 7486} 7487 7488ssize_t AudioPolicyManager::DeviceVector::indexOf(const sp<DeviceDescriptor>& item) const 7489{ 7490 for(size_t i = 0; i < size(); i++) { 7491 if (item->equals(itemAt(i))) { 7492 return i; 7493 } 7494 } 7495 return -1; 7496} 7497 7498ssize_t AudioPolicyManager::DeviceVector::add(const sp<DeviceDescriptor>& item) 7499{ 7500 ssize_t ret = indexOf(item); 7501 7502 if (ret < 0) { 7503 ret = SortedVector::add(item); 7504 if (ret >= 0) { 7505 refreshTypes(); 7506 } 7507 } else { 7508 ALOGW("DeviceVector::add device %08x already in", item->mDeviceType); 7509 ret = -1; 7510 } 7511 return ret; 7512} 7513 7514ssize_t AudioPolicyManager::DeviceVector::remove(const sp<DeviceDescriptor>& item) 7515{ 7516 size_t i; 7517 ssize_t ret = indexOf(item); 7518 7519 if (ret < 0) { 7520 ALOGW("DeviceVector::remove device %08x not in", item->mDeviceType); 7521 } else { 7522 ret = SortedVector::removeAt(ret); 7523 if (ret >= 0) { 7524 refreshTypes(); 7525 } 7526 } 7527 return ret; 7528} 7529 7530void AudioPolicyManager::DeviceVector::loadDevicesFromType(audio_devices_t types) 7531{ 7532 DeviceVector deviceList; 7533 7534 uint32_t role_bit = AUDIO_DEVICE_BIT_IN & types; 7535 types &= ~role_bit; 7536 7537 while (types) { 7538 uint32_t i = 31 - __builtin_clz(types); 7539 uint32_t type = 1 << i; 7540 types &= ~type; 7541 add(new DeviceDescriptor(String8(""), type | role_bit)); 7542 } 7543} 7544 7545void AudioPolicyManager::DeviceVector::loadDevicesFromName(char *name, 7546 const DeviceVector& declaredDevices) 7547{ 7548 char *devName = strtok(name, "|"); 7549 while (devName != NULL) { 7550 if (strlen(devName) != 0) { 7551 audio_devices_t type = stringToEnum(sDeviceNameToEnumTable, 7552 ARRAY_SIZE(sDeviceNameToEnumTable), 7553 devName); 7554 if (type != AUDIO_DEVICE_NONE) { 7555 sp<DeviceDescriptor> dev = new DeviceDescriptor(String8(""), type); 7556 if (type == AUDIO_DEVICE_IN_REMOTE_SUBMIX || 7557 type == AUDIO_DEVICE_OUT_REMOTE_SUBMIX ) { 7558 dev->mAddress = String8("0"); 7559 } 7560 add(dev); 7561 } else { 7562 sp<DeviceDescriptor> deviceDesc = 7563 declaredDevices.getDeviceFromName(String8(devName)); 7564 if (deviceDesc != 0) { 7565 add(deviceDesc); 7566 } 7567 } 7568 } 7569 devName = strtok(NULL, "|"); 7570 } 7571} 7572 7573sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDevice( 7574 audio_devices_t type, String8 address) const 7575{ 7576 sp<DeviceDescriptor> device; 7577 for (size_t i = 0; i < size(); i++) { 7578 if (itemAt(i)->mDeviceType == type) { 7579 if (address == "" || itemAt(i)->mAddress == address) { 7580 device = itemAt(i); 7581 if (itemAt(i)->mAddress == address) { 7582 break; 7583 } 7584 } 7585 } 7586 } 7587 ALOGV("DeviceVector::getDevice() for type %08x address %s found %p", 7588 type, address.string(), device.get()); 7589 return device; 7590} 7591 7592sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDeviceFromId( 7593 audio_port_handle_t id) const 7594{ 7595 sp<DeviceDescriptor> device; 7596 for (size_t i = 0; i < size(); i++) { 7597 ALOGV("DeviceVector::getDeviceFromId(%d) itemAt(%zu)->mId %d", id, i, itemAt(i)->mId); 7598 if (itemAt(i)->mId == id) { 7599 device = itemAt(i); 7600 break; 7601 } 7602 } 7603 return device; 7604} 7605 7606AudioPolicyManager::DeviceVector AudioPolicyManager::DeviceVector::getDevicesFromType( 7607 audio_devices_t type) const 7608{ 7609 DeviceVector devices; 7610 for (size_t i = 0; (i < size()) && (type != AUDIO_DEVICE_NONE); i++) { 7611 if (itemAt(i)->mDeviceType & type & ~AUDIO_DEVICE_BIT_IN) { 7612 devices.add(itemAt(i)); 7613 type &= ~itemAt(i)->mDeviceType; 7614 ALOGV("DeviceVector::getDevicesFromType() for type %x found %p", 7615 itemAt(i)->mDeviceType, itemAt(i).get()); 7616 } 7617 } 7618 return devices; 7619} 7620 7621AudioPolicyManager::DeviceVector AudioPolicyManager::DeviceVector::getDevicesFromTypeAddr( 7622 audio_devices_t type, String8 address) const 7623{ 7624 DeviceVector devices; 7625 for (size_t i = 0; i < size(); i++) { 7626 if (itemAt(i)->mDeviceType == type) { 7627 if (itemAt(i)->mAddress == address) { 7628 devices.add(itemAt(i)); 7629 } 7630 } 7631 } 7632 return devices; 7633} 7634 7635sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDeviceFromName( 7636 const String8& name) const 7637{ 7638 sp<DeviceDescriptor> device; 7639 for (size_t i = 0; i < size(); i++) { 7640 if (itemAt(i)->mName == name) { 7641 device = itemAt(i); 7642 break; 7643 } 7644 } 7645 return device; 7646} 7647 7648void AudioPolicyManager::DeviceDescriptor::toAudioPortConfig( 7649 struct audio_port_config *dstConfig, 7650 const struct audio_port_config *srcConfig) const 7651{ 7652 dstConfig->config_mask = AUDIO_PORT_CONFIG_CHANNEL_MASK|AUDIO_PORT_CONFIG_GAIN; 7653 if (srcConfig != NULL) { 7654 dstConfig->config_mask |= srcConfig->config_mask; 7655 } 7656 7657 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 7658 7659 dstConfig->id = mId; 7660 dstConfig->role = audio_is_output_device(mDeviceType) ? 7661 AUDIO_PORT_ROLE_SINK : AUDIO_PORT_ROLE_SOURCE; 7662 dstConfig->type = AUDIO_PORT_TYPE_DEVICE; 7663 dstConfig->ext.device.type = mDeviceType; 7664 dstConfig->ext.device.hw_module = mModule->mHandle; 7665 strncpy(dstConfig->ext.device.address, mAddress.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN); 7666} 7667 7668void AudioPolicyManager::DeviceDescriptor::toAudioPort(struct audio_port *port) const 7669{ 7670 ALOGV("DeviceDescriptor::toAudioPort() handle %d type %x", mId, mDeviceType); 7671 AudioPort::toAudioPort(port); 7672 port->id = mId; 7673 toAudioPortConfig(&port->active_config); 7674 port->ext.device.type = mDeviceType; 7675 port->ext.device.hw_module = mModule->mHandle; 7676 strncpy(port->ext.device.address, mAddress.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN); 7677} 7678 7679status_t AudioPolicyManager::DeviceDescriptor::dump(int fd, int spaces, int index) const 7680{ 7681 const size_t SIZE = 256; 7682 char buffer[SIZE]; 7683 String8 result; 7684 7685 snprintf(buffer, SIZE, "%*sDevice %d:\n", spaces, "", index+1); 7686 result.append(buffer); 7687 if (mId != 0) { 7688 snprintf(buffer, SIZE, "%*s- id: %2d\n", spaces, "", mId); 7689 result.append(buffer); 7690 } 7691 snprintf(buffer, SIZE, "%*s- type: %-48s\n", spaces, "", 7692 enumToString(sDeviceNameToEnumTable, 7693 ARRAY_SIZE(sDeviceNameToEnumTable), 7694 mDeviceType)); 7695 result.append(buffer); 7696 if (mAddress.size() != 0) { 7697 snprintf(buffer, SIZE, "%*s- address: %-32s\n", spaces, "", mAddress.string()); 7698 result.append(buffer); 7699 } 7700 write(fd, result.string(), result.size()); 7701 AudioPort::dump(fd, spaces); 7702 7703 return NO_ERROR; 7704} 7705 7706status_t AudioPolicyManager::AudioPatch::dump(int fd, int spaces, int index) const 7707{ 7708 const size_t SIZE = 256; 7709 char buffer[SIZE]; 7710 String8 result; 7711 7712 7713 snprintf(buffer, SIZE, "%*sAudio patch %d:\n", spaces, "", index+1); 7714 result.append(buffer); 7715 snprintf(buffer, SIZE, "%*s- handle: %2d\n", spaces, "", mHandle); 7716 result.append(buffer); 7717 snprintf(buffer, SIZE, "%*s- audio flinger handle: %2d\n", spaces, "", mAfPatchHandle); 7718 result.append(buffer); 7719 snprintf(buffer, SIZE, "%*s- owner uid: %2d\n", spaces, "", mUid); 7720 result.append(buffer); 7721 snprintf(buffer, SIZE, "%*s- %d sources:\n", spaces, "", mPatch.num_sources); 7722 result.append(buffer); 7723 for (size_t i = 0; i < mPatch.num_sources; i++) { 7724 if (mPatch.sources[i].type == AUDIO_PORT_TYPE_DEVICE) { 7725 snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "", 7726 mPatch.sources[i].id, enumToString(sDeviceNameToEnumTable, 7727 ARRAY_SIZE(sDeviceNameToEnumTable), 7728 mPatch.sources[i].ext.device.type)); 7729 } else { 7730 snprintf(buffer, SIZE, "%*s- Mix ID %d I/O handle %d\n", spaces + 2, "", 7731 mPatch.sources[i].id, mPatch.sources[i].ext.mix.handle); 7732 } 7733 result.append(buffer); 7734 } 7735 snprintf(buffer, SIZE, "%*s- %d sinks:\n", spaces, "", mPatch.num_sinks); 7736 result.append(buffer); 7737 for (size_t i = 0; i < mPatch.num_sinks; i++) { 7738 if (mPatch.sinks[i].type == AUDIO_PORT_TYPE_DEVICE) { 7739 snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "", 7740 mPatch.sinks[i].id, enumToString(sDeviceNameToEnumTable, 7741 ARRAY_SIZE(sDeviceNameToEnumTable), 7742 mPatch.sinks[i].ext.device.type)); 7743 } else { 7744 snprintf(buffer, SIZE, "%*s- Mix ID %d I/O handle %d\n", spaces + 2, "", 7745 mPatch.sinks[i].id, mPatch.sinks[i].ext.mix.handle); 7746 } 7747 result.append(buffer); 7748 } 7749 7750 write(fd, result.string(), result.size()); 7751 return NO_ERROR; 7752} 7753 7754// --- audio_policy.conf file parsing 7755 7756uint32_t AudioPolicyManager::parseOutputFlagNames(char *name) 7757{ 7758 uint32_t flag = 0; 7759 7760 // it is OK to cast name to non const here as we are not going to use it after 7761 // strtok() modifies it 7762 char *flagName = strtok(name, "|"); 7763 while (flagName != NULL) { 7764 if (strlen(flagName) != 0) { 7765 flag |= stringToEnum(sOutputFlagNameToEnumTable, 7766 ARRAY_SIZE(sOutputFlagNameToEnumTable), 7767 flagName); 7768 } 7769 flagName = strtok(NULL, "|"); 7770 } 7771 //force direct flag if offload flag is set: offloading implies a direct output stream 7772 // and all common behaviors are driven by checking only the direct flag 7773 // this should normally be set appropriately in the policy configuration file 7774 if ((flag & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 7775 flag |= AUDIO_OUTPUT_FLAG_DIRECT; 7776 } 7777 7778 return flag; 7779} 7780 7781uint32_t AudioPolicyManager::parseInputFlagNames(char *name) 7782{ 7783 uint32_t flag = 0; 7784 7785 // it is OK to cast name to non const here as we are not going to use it after 7786 // strtok() modifies it 7787 char *flagName = strtok(name, "|"); 7788 while (flagName != NULL) { 7789 if (strlen(flagName) != 0) { 7790 flag |= stringToEnum(sInputFlagNameToEnumTable, 7791 ARRAY_SIZE(sInputFlagNameToEnumTable), 7792 flagName); 7793 } 7794 flagName = strtok(NULL, "|"); 7795 } 7796 return flag; 7797} 7798 7799audio_devices_t AudioPolicyManager::parseDeviceNames(char *name) 7800{ 7801 uint32_t device = 0; 7802 7803 char *devName = strtok(name, "|"); 7804 while (devName != NULL) { 7805 if (strlen(devName) != 0) { 7806 device |= stringToEnum(sDeviceNameToEnumTable, 7807 ARRAY_SIZE(sDeviceNameToEnumTable), 7808 devName); 7809 } 7810 devName = strtok(NULL, "|"); 7811 } 7812 return device; 7813} 7814 7815void AudioPolicyManager::loadHwModule(cnode *root) 7816{ 7817 status_t status = NAME_NOT_FOUND; 7818 cnode *node; 7819 sp<HwModule> module = new HwModule(root->name); 7820 7821 node = config_find(root, DEVICES_TAG); 7822 if (node != NULL) { 7823 node = node->first_child; 7824 while (node) { 7825 ALOGV("loadHwModule() loading device %s", node->name); 7826 status_t tmpStatus = module->loadDevice(node); 7827 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 7828 status = tmpStatus; 7829 } 7830 node = node->next; 7831 } 7832 } 7833 node = config_find(root, OUTPUTS_TAG); 7834 if (node != NULL) { 7835 node = node->first_child; 7836 while (node) { 7837 ALOGV("loadHwModule() loading output %s", node->name); 7838 status_t tmpStatus = module->loadOutput(node); 7839 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 7840 status = tmpStatus; 7841 } 7842 node = node->next; 7843 } 7844 } 7845 node = config_find(root, INPUTS_TAG); 7846 if (node != NULL) { 7847 node = node->first_child; 7848 while (node) { 7849 ALOGV("loadHwModule() loading input %s", node->name); 7850 status_t tmpStatus = module->loadInput(node); 7851 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 7852 status = tmpStatus; 7853 } 7854 node = node->next; 7855 } 7856 } 7857 loadGlobalConfig(root, module); 7858 7859 if (status == NO_ERROR) { 7860 mHwModules.add(module); 7861 } 7862} 7863 7864void AudioPolicyManager::loadHwModules(cnode *root) 7865{ 7866 cnode *node = config_find(root, AUDIO_HW_MODULE_TAG); 7867 if (node == NULL) { 7868 return; 7869 } 7870 7871 node = node->first_child; 7872 while (node) { 7873 ALOGV("loadHwModules() loading module %s", node->name); 7874 loadHwModule(node); 7875 node = node->next; 7876 } 7877} 7878 7879void AudioPolicyManager::loadGlobalConfig(cnode *root, const sp<HwModule>& module) 7880{ 7881 cnode *node = config_find(root, GLOBAL_CONFIG_TAG); 7882 7883 if (node == NULL) { 7884 return; 7885 } 7886 DeviceVector declaredDevices; 7887 if (module != NULL) { 7888 declaredDevices = module->mDeclaredDevices; 7889 } 7890 7891 node = node->first_child; 7892 while (node) { 7893 if (strcmp(ATTACHED_OUTPUT_DEVICES_TAG, node->name) == 0) { 7894 mAvailableOutputDevices.loadDevicesFromName((char *)node->value, 7895 declaredDevices); 7896 ALOGV("loadGlobalConfig() Attached Output Devices %08x", 7897 mAvailableOutputDevices.types()); 7898 } else if (strcmp(DEFAULT_OUTPUT_DEVICE_TAG, node->name) == 0) { 7899 audio_devices_t device = (audio_devices_t)stringToEnum(sDeviceNameToEnumTable, 7900 ARRAY_SIZE(sDeviceNameToEnumTable), 7901 (char *)node->value); 7902 if (device != AUDIO_DEVICE_NONE) { 7903 mDefaultOutputDevice = new DeviceDescriptor(String8(""), device); 7904 } else { 7905 ALOGW("loadGlobalConfig() default device not specified"); 7906 } 7907 ALOGV("loadGlobalConfig() mDefaultOutputDevice %08x", mDefaultOutputDevice->mDeviceType); 7908 } else if (strcmp(ATTACHED_INPUT_DEVICES_TAG, node->name) == 0) { 7909 mAvailableInputDevices.loadDevicesFromName((char *)node->value, 7910 declaredDevices); 7911 ALOGV("loadGlobalConfig() Available InputDevices %08x", mAvailableInputDevices.types()); 7912 } else if (strcmp(SPEAKER_DRC_ENABLED_TAG, node->name) == 0) { 7913 mSpeakerDrcEnabled = stringToBool((char *)node->value); 7914 ALOGV("loadGlobalConfig() mSpeakerDrcEnabled = %d", mSpeakerDrcEnabled); 7915 } else if (strcmp(AUDIO_HAL_VERSION_TAG, node->name) == 0) { 7916 uint32_t major, minor; 7917 sscanf((char *)node->value, "%u.%u", &major, &minor); 7918 module->mHalVersion = HARDWARE_DEVICE_API_VERSION(major, minor); 7919 ALOGV("loadGlobalConfig() mHalVersion = %04x major %u minor %u", 7920 module->mHalVersion, major, minor); 7921 } 7922 node = node->next; 7923 } 7924} 7925 7926status_t AudioPolicyManager::loadAudioPolicyConfig(const char *path) 7927{ 7928 cnode *root; 7929 char *data; 7930 7931 data = (char *)load_file(path, NULL); 7932 if (data == NULL) { 7933 return -ENODEV; 7934 } 7935 root = config_node("", ""); 7936 config_load(root, data); 7937 7938 loadHwModules(root); 7939 // legacy audio_policy.conf files have one global_configuration section 7940 loadGlobalConfig(root, getModuleFromName(AUDIO_HARDWARE_MODULE_ID_PRIMARY)); 7941 config_free(root); 7942 free(root); 7943 free(data); 7944 7945 ALOGI("loadAudioPolicyConfig() loaded %s\n", path); 7946 7947 return NO_ERROR; 7948} 7949 7950void AudioPolicyManager::defaultAudioPolicyConfig(void) 7951{ 7952 sp<HwModule> module; 7953 sp<IOProfile> profile; 7954 sp<DeviceDescriptor> defaultInputDevice = new DeviceDescriptor(String8(""), 7955 AUDIO_DEVICE_IN_BUILTIN_MIC); 7956 mAvailableOutputDevices.add(mDefaultOutputDevice); 7957 mAvailableInputDevices.add(defaultInputDevice); 7958 7959 module = new HwModule("primary"); 7960 7961 profile = new IOProfile(String8("primary"), AUDIO_PORT_ROLE_SOURCE, module); 7962 profile->mSamplingRates.add(44100); 7963 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 7964 profile->mChannelMasks.add(AUDIO_CHANNEL_OUT_STEREO); 7965 profile->mSupportedDevices.add(mDefaultOutputDevice); 7966 profile->mFlags = AUDIO_OUTPUT_FLAG_PRIMARY; 7967 module->mOutputProfiles.add(profile); 7968 7969 profile = new IOProfile(String8("primary"), AUDIO_PORT_ROLE_SINK, module); 7970 profile->mSamplingRates.add(8000); 7971 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 7972 profile->mChannelMasks.add(AUDIO_CHANNEL_IN_MONO); 7973 profile->mSupportedDevices.add(defaultInputDevice); 7974 module->mInputProfiles.add(profile); 7975 7976 mHwModules.add(module); 7977} 7978 7979audio_stream_type_t AudioPolicyManager::streamTypefromAttributesInt(const audio_attributes_t *attr) 7980{ 7981 // flags to stream type mapping 7982 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 7983 return AUDIO_STREAM_ENFORCED_AUDIBLE; 7984 } 7985 if ((attr->flags & AUDIO_FLAG_SCO) == AUDIO_FLAG_SCO) { 7986 return AUDIO_STREAM_BLUETOOTH_SCO; 7987 } 7988 7989 // usage to stream type mapping 7990 switch (attr->usage) { 7991 case AUDIO_USAGE_MEDIA: 7992 case AUDIO_USAGE_GAME: 7993 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 7994 return AUDIO_STREAM_MUSIC; 7995 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 7996 if (isStreamActive(AUDIO_STREAM_ALARM)) { 7997 return AUDIO_STREAM_ALARM; 7998 } 7999 if (isStreamActive(AUDIO_STREAM_RING)) { 8000 return AUDIO_STREAM_RING; 8001 } 8002 if (isInCall()) { 8003 return AUDIO_STREAM_VOICE_CALL; 8004 } 8005 return AUDIO_STREAM_ACCESSIBILITY; 8006 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 8007 return AUDIO_STREAM_SYSTEM; 8008 case AUDIO_USAGE_VOICE_COMMUNICATION: 8009 return AUDIO_STREAM_VOICE_CALL; 8010 8011 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 8012 return AUDIO_STREAM_DTMF; 8013 8014 case AUDIO_USAGE_ALARM: 8015 return AUDIO_STREAM_ALARM; 8016 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 8017 return AUDIO_STREAM_RING; 8018 8019 case AUDIO_USAGE_NOTIFICATION: 8020 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 8021 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 8022 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 8023 case AUDIO_USAGE_NOTIFICATION_EVENT: 8024 return AUDIO_STREAM_NOTIFICATION; 8025 8026 case AUDIO_USAGE_UNKNOWN: 8027 default: 8028 return AUDIO_STREAM_MUSIC; 8029 } 8030} 8031 8032bool AudioPolicyManager::isValidAttributes(const audio_attributes_t *paa) { 8033 // has flags that map to a strategy? 8034 if ((paa->flags & (AUDIO_FLAG_AUDIBILITY_ENFORCED | AUDIO_FLAG_SCO | AUDIO_FLAG_BEACON)) != 0) { 8035 return true; 8036 } 8037 8038 // has known usage? 8039 switch (paa->usage) { 8040 case AUDIO_USAGE_UNKNOWN: 8041 case AUDIO_USAGE_MEDIA: 8042 case AUDIO_USAGE_VOICE_COMMUNICATION: 8043 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 8044 case AUDIO_USAGE_ALARM: 8045 case AUDIO_USAGE_NOTIFICATION: 8046 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 8047 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 8048 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 8049 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 8050 case AUDIO_USAGE_NOTIFICATION_EVENT: 8051 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 8052 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 8053 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 8054 case AUDIO_USAGE_GAME: 8055 case AUDIO_USAGE_VIRTUAL_SOURCE: 8056 break; 8057 default: 8058 return false; 8059 } 8060 return true; 8061} 8062 8063}; // namespace android 8064