AudioPolicyManager.cpp revision 0daea39f02fb1ba60a7b351bb5859e407f9f090b
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// ---------------------------------------------------------------------------- 213 214 215status_t AudioPolicyManager::setDeviceConnectionState(audio_devices_t device, 216 audio_policy_dev_state_t state, 217 const char *device_address) 218{ 219 String8 address = (device_address == NULL) ? String8("") : String8(device_address); 220 // handle legacy remote submix case where the address was not always specified 221 if (deviceDistinguishesOnAddress(device) && (address.length() == 0)) { 222 address = String8("0"); 223 } 224 225 ALOGV("setDeviceConnectionState() device: %x, state %d, address %s", 226 device, state, address.string()); 227 228 // connect/disconnect only 1 device at a time 229 if (!audio_is_output_device(device) && !audio_is_input_device(device)) return BAD_VALUE; 230 231 // handle output devices 232 if (audio_is_output_device(device)) { 233 SortedVector <audio_io_handle_t> outputs; 234 235 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 236 devDesc->mAddress = address; 237 ssize_t index = mAvailableOutputDevices.indexOf(devDesc); 238 239 // save a copy of the opened output descriptors before any output is opened or closed 240 // by checkOutputsForDevice(). This will be needed by checkOutputForAllStrategies() 241 mPreviousOutputs = mOutputs; 242 switch (state) 243 { 244 // handle output device connection 245 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: 246 if (index >= 0) { 247 ALOGW("setDeviceConnectionState() device already connected: %x", device); 248 return INVALID_OPERATION; 249 } 250 ALOGV("setDeviceConnectionState() connecting device %x", device); 251 252 // register new device as available 253 index = mAvailableOutputDevices.add(devDesc); 254 if (index >= 0) { 255 sp<HwModule> module = getModuleForDevice(device); 256 if (module == 0) { 257 ALOGD("setDeviceConnectionState() could not find HW module for device %08x", 258 device); 259 mAvailableOutputDevices.remove(devDesc); 260 return INVALID_OPERATION; 261 } 262 mAvailableOutputDevices[index]->mId = nextUniqueId(); 263 mAvailableOutputDevices[index]->mModule = module; 264 } else { 265 return NO_MEMORY; 266 } 267 268 if (checkOutputsForDevice(devDesc, state, outputs, address) != NO_ERROR) { 269 mAvailableOutputDevices.remove(devDesc); 270 return INVALID_OPERATION; 271 } 272 // outputs should never be empty here 273 ALOG_ASSERT(outputs.size() != 0, "setDeviceConnectionState():" 274 "checkOutputsForDevice() returned no outputs but status OK"); 275 ALOGV("setDeviceConnectionState() checkOutputsForDevice() returned %zu outputs", 276 outputs.size()); 277 break; 278 // handle output device disconnection 279 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 280 if (index < 0) { 281 ALOGW("setDeviceConnectionState() device not connected: %x", device); 282 return INVALID_OPERATION; 283 } 284 285 ALOGV("setDeviceConnectionState() disconnecting output device %x", device); 286 287 // Set Disconnect to HALs 288 AudioParameter param = AudioParameter(address); 289 param.addInt(String8(AUDIO_PARAMETER_DEVICE_DISCONNECT), device); 290 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 291 292 // remove device from available output devices 293 mAvailableOutputDevices.remove(devDesc); 294 295 checkOutputsForDevice(devDesc, state, outputs, address); 296 } break; 297 298 default: 299 ALOGE("setDeviceConnectionState() invalid state: %x", state); 300 return BAD_VALUE; 301 } 302 303 // checkA2dpSuspend must run before checkOutputForAllStrategies so that A2DP 304 // output is suspended before any tracks are moved to it 305 checkA2dpSuspend(); 306 checkOutputForAllStrategies(); 307 // outputs must be closed after checkOutputForAllStrategies() is executed 308 if (!outputs.isEmpty()) { 309 for (size_t i = 0; i < outputs.size(); i++) { 310 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 311 // close unused outputs after device disconnection or direct outputs that have been 312 // opened by checkOutputsForDevice() to query dynamic parameters 313 if ((state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) || 314 (((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) && 315 (desc->mDirectOpenCount == 0))) { 316 closeOutput(outputs[i]); 317 } 318 } 319 // check again after closing A2DP output to reset mA2dpSuspended if needed 320 checkA2dpSuspend(); 321 } 322 323 updateDevicesAndOutputs(); 324 if (mPhoneState == AUDIO_MODE_IN_CALL) { 325 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 326 updateCallRouting(newDevice); 327 } 328 for (size_t i = 0; i < mOutputs.size(); i++) { 329 audio_io_handle_t output = mOutputs.keyAt(i); 330 if ((mPhoneState != AUDIO_MODE_IN_CALL) || (output != mPrimaryOutput)) { 331 audio_devices_t newDevice = getNewOutputDevice(mOutputs.keyAt(i), 332 true /*fromCache*/); 333 // do not force device change on duplicated output because if device is 0, it will 334 // also force a device 0 for the two outputs it is duplicated to which may override 335 // a valid device selection on those outputs. 336 bool force = !mOutputs.valueAt(i)->isDuplicated() 337 && (!deviceDistinguishesOnAddress(device) 338 // always force when disconnecting (a non-duplicated device) 339 || (state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE)); 340 setOutputDevice(output, newDevice, force, 0); 341 } 342 } 343 344 mpClientInterface->onAudioPortListUpdate(); 345 return NO_ERROR; 346 } // end if is output device 347 348 // handle input devices 349 if (audio_is_input_device(device)) { 350 SortedVector <audio_io_handle_t> inputs; 351 352 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 353 devDesc->mAddress = address; 354 ssize_t index = mAvailableInputDevices.indexOf(devDesc); 355 switch (state) 356 { 357 // handle input device connection 358 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: { 359 if (index >= 0) { 360 ALOGW("setDeviceConnectionState() device already connected: %d", device); 361 return INVALID_OPERATION; 362 } 363 sp<HwModule> module = getModuleForDevice(device); 364 if (module == NULL) { 365 ALOGW("setDeviceConnectionState(): could not find HW module for device %08x", 366 device); 367 return INVALID_OPERATION; 368 } 369 if (checkInputsForDevice(device, state, inputs, address) != NO_ERROR) { 370 return INVALID_OPERATION; 371 } 372 373 index = mAvailableInputDevices.add(devDesc); 374 if (index >= 0) { 375 mAvailableInputDevices[index]->mId = nextUniqueId(); 376 mAvailableInputDevices[index]->mModule = module; 377 } else { 378 return NO_MEMORY; 379 } 380 } break; 381 382 // handle input device disconnection 383 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 384 if (index < 0) { 385 ALOGW("setDeviceConnectionState() device not connected: %d", device); 386 return INVALID_OPERATION; 387 } 388 389 ALOGV("setDeviceConnectionState() disconnecting input device %x", device); 390 391 // Set Disconnect to HALs 392 AudioParameter param = AudioParameter(address); 393 param.addInt(String8(AUDIO_PARAMETER_DEVICE_DISCONNECT), device); 394 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 395 396 checkInputsForDevice(device, state, inputs, address); 397 mAvailableInputDevices.remove(devDesc); 398 399 } break; 400 401 default: 402 ALOGE("setDeviceConnectionState() invalid state: %x", state); 403 return BAD_VALUE; 404 } 405 406 closeAllInputs(); 407 408 if (mPhoneState == AUDIO_MODE_IN_CALL) { 409 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 410 updateCallRouting(newDevice); 411 } 412 413 mpClientInterface->onAudioPortListUpdate(); 414 return NO_ERROR; 415 } // end if is input device 416 417 ALOGW("setDeviceConnectionState() invalid device: %x", device); 418 return BAD_VALUE; 419} 420 421audio_policy_dev_state_t AudioPolicyManager::getDeviceConnectionState(audio_devices_t device, 422 const char *device_address) 423{ 424 audio_policy_dev_state_t state = AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 425 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 426 devDesc->mAddress = (device_address == NULL) ? String8("") : String8(device_address); 427 // handle legacy remote submix case where the address was not always specified 428 if (deviceDistinguishesOnAddress(device) && (devDesc->mAddress.length() == 0)) { 429 devDesc->mAddress = String8("0"); 430 } 431 ssize_t index; 432 DeviceVector *deviceVector; 433 434 if (audio_is_output_device(device)) { 435 deviceVector = &mAvailableOutputDevices; 436 } else if (audio_is_input_device(device)) { 437 deviceVector = &mAvailableInputDevices; 438 } else { 439 ALOGW("getDeviceConnectionState() invalid device type %08x", device); 440 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 441 } 442 443 index = deviceVector->indexOf(devDesc); 444 if (index >= 0) { 445 return AUDIO_POLICY_DEVICE_STATE_AVAILABLE; 446 } else { 447 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 448 } 449} 450 451void AudioPolicyManager::updateCallRouting(audio_devices_t rxDevice, int delayMs) 452{ 453 bool createTxPatch = false; 454 struct audio_patch patch; 455 patch.num_sources = 1; 456 patch.num_sinks = 1; 457 status_t status; 458 audio_patch_handle_t afPatchHandle; 459 DeviceVector deviceList; 460 461 audio_devices_t txDevice = getDeviceForInputSource(AUDIO_SOURCE_VOICE_COMMUNICATION); 462 ALOGV("updateCallRouting device rxDevice %08x txDevice %08x", rxDevice, txDevice); 463 464 // release existing RX patch if any 465 if (mCallRxPatch != 0) { 466 mpClientInterface->releaseAudioPatch(mCallRxPatch->mAfPatchHandle, 0); 467 mCallRxPatch.clear(); 468 } 469 // release TX patch if any 470 if (mCallTxPatch != 0) { 471 mpClientInterface->releaseAudioPatch(mCallTxPatch->mAfPatchHandle, 0); 472 mCallTxPatch.clear(); 473 } 474 475 // If the RX device is on the primary HW module, then use legacy routing method for voice calls 476 // via setOutputDevice() on primary output. 477 // Otherwise, create two audio patches for TX and RX path. 478 if (availablePrimaryOutputDevices() & rxDevice) { 479 setOutputDevice(mPrimaryOutput, rxDevice, true, delayMs); 480 // If the TX device is also on the primary HW module, setOutputDevice() will take care 481 // of it due to legacy implementation. If not, create a patch. 482 if ((availablePrimaryInputDevices() & txDevice & ~AUDIO_DEVICE_BIT_IN) 483 == AUDIO_DEVICE_NONE) { 484 createTxPatch = true; 485 } 486 } else { 487 // create RX path audio patch 488 deviceList = mAvailableOutputDevices.getDevicesFromType(rxDevice); 489 ALOG_ASSERT(!deviceList.isEmpty(), 490 "updateCallRouting() selected device not in output device list"); 491 sp<DeviceDescriptor> rxSinkDeviceDesc = deviceList.itemAt(0); 492 deviceList = mAvailableInputDevices.getDevicesFromType(AUDIO_DEVICE_IN_TELEPHONY_RX); 493 ALOG_ASSERT(!deviceList.isEmpty(), 494 "updateCallRouting() no telephony RX device"); 495 sp<DeviceDescriptor> rxSourceDeviceDesc = deviceList.itemAt(0); 496 497 rxSourceDeviceDesc->toAudioPortConfig(&patch.sources[0]); 498 rxSinkDeviceDesc->toAudioPortConfig(&patch.sinks[0]); 499 500 // request to reuse existing output stream if one is already opened to reach the RX device 501 SortedVector<audio_io_handle_t> outputs = 502 getOutputsForDevice(rxDevice, mOutputs); 503 audio_io_handle_t output = selectOutput(outputs, 504 AUDIO_OUTPUT_FLAG_NONE, 505 AUDIO_FORMAT_INVALID); 506 if (output != AUDIO_IO_HANDLE_NONE) { 507 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 508 ALOG_ASSERT(!outputDesc->isDuplicated(), 509 "updateCallRouting() RX device output is duplicated"); 510 outputDesc->toAudioPortConfig(&patch.sources[1]); 511 patch.num_sources = 2; 512 } 513 514 afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 515 status = mpClientInterface->createAudioPatch(&patch, &afPatchHandle, 0); 516 ALOGW_IF(status != NO_ERROR, "updateCallRouting() error %d creating RX audio patch", 517 status); 518 if (status == NO_ERROR) { 519 mCallRxPatch = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 520 &patch, mUidCached); 521 mCallRxPatch->mAfPatchHandle = afPatchHandle; 522 mCallRxPatch->mUid = mUidCached; 523 } 524 createTxPatch = true; 525 } 526 if (createTxPatch) { 527 528 struct audio_patch patch; 529 patch.num_sources = 1; 530 patch.num_sinks = 1; 531 deviceList = mAvailableInputDevices.getDevicesFromType(txDevice); 532 ALOG_ASSERT(!deviceList.isEmpty(), 533 "updateCallRouting() selected device not in input device list"); 534 sp<DeviceDescriptor> txSourceDeviceDesc = deviceList.itemAt(0); 535 txSourceDeviceDesc->toAudioPortConfig(&patch.sources[0]); 536 deviceList = mAvailableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_TELEPHONY_TX); 537 ALOG_ASSERT(!deviceList.isEmpty(), 538 "updateCallRouting() no telephony TX device"); 539 sp<DeviceDescriptor> txSinkDeviceDesc = deviceList.itemAt(0); 540 txSinkDeviceDesc->toAudioPortConfig(&patch.sinks[0]); 541 542 SortedVector<audio_io_handle_t> outputs = 543 getOutputsForDevice(AUDIO_DEVICE_OUT_TELEPHONY_TX, mOutputs); 544 audio_io_handle_t output = selectOutput(outputs, 545 AUDIO_OUTPUT_FLAG_NONE, 546 AUDIO_FORMAT_INVALID); 547 // request to reuse existing output stream if one is already opened to reach the TX 548 // path output device 549 if (output != AUDIO_IO_HANDLE_NONE) { 550 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 551 ALOG_ASSERT(!outputDesc->isDuplicated(), 552 "updateCallRouting() RX device output is duplicated"); 553 outputDesc->toAudioPortConfig(&patch.sources[1]); 554 patch.num_sources = 2; 555 } 556 557 afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 558 status = mpClientInterface->createAudioPatch(&patch, &afPatchHandle, 0); 559 ALOGW_IF(status != NO_ERROR, "setPhoneState() error %d creating TX audio patch", 560 status); 561 if (status == NO_ERROR) { 562 mCallTxPatch = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 563 &patch, mUidCached); 564 mCallTxPatch->mAfPatchHandle = afPatchHandle; 565 mCallTxPatch->mUid = mUidCached; 566 } 567 } 568} 569 570void AudioPolicyManager::setPhoneState(audio_mode_t state) 571{ 572 ALOGV("setPhoneState() state %d", state); 573 if (state < 0 || state >= AUDIO_MODE_CNT) { 574 ALOGW("setPhoneState() invalid state %d", state); 575 return; 576 } 577 578 if (state == mPhoneState ) { 579 ALOGW("setPhoneState() setting same state %d", state); 580 return; 581 } 582 583 // if leaving call state, handle special case of active streams 584 // pertaining to sonification strategy see handleIncallSonification() 585 if (isInCall()) { 586 ALOGV("setPhoneState() in call state management: new state is %d", state); 587 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 588 if (stream == AUDIO_STREAM_PATCH) { 589 continue; 590 } 591 handleIncallSonification((audio_stream_type_t)stream, false, true); 592 } 593 } 594 595 // store previous phone state for management of sonification strategy below 596 int oldState = mPhoneState; 597 mPhoneState = state; 598 bool force = false; 599 600 // are we entering or starting a call 601 if (!isStateInCall(oldState) && isStateInCall(state)) { 602 ALOGV(" Entering call in setPhoneState()"); 603 // force routing command to audio hardware when starting a call 604 // even if no device change is needed 605 force = true; 606 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 607 mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] = 608 sVolumeProfiles[AUDIO_STREAM_VOICE_CALL][j]; 609 } 610 } else if (isStateInCall(oldState) && !isStateInCall(state)) { 611 ALOGV(" Exiting call in setPhoneState()"); 612 // force routing command to audio hardware when exiting 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_DTMF][j]; 618 } 619 } else if (isStateInCall(state) && (state != oldState)) { 620 ALOGV(" Switching between telephony and VoIP in setPhoneState()"); 621 // force routing command to audio hardware when switching between telephony and VoIP 622 // even if no device change is needed 623 force = true; 624 } 625 626 // check for device and output changes triggered by new phone state 627 checkA2dpSuspend(); 628 checkOutputForAllStrategies(); 629 updateDevicesAndOutputs(); 630 631 sp<AudioOutputDescriptor> hwOutputDesc = mOutputs.valueFor(mPrimaryOutput); 632 633 int delayMs = 0; 634 if (isStateInCall(state)) { 635 nsecs_t sysTime = systemTime(); 636 for (size_t i = 0; i < mOutputs.size(); i++) { 637 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 638 // mute media and sonification strategies and delay device switch by the largest 639 // latency of any output where either strategy is active. 640 // This avoid sending the ring tone or music tail into the earpiece or headset. 641 if ((desc->isStrategyActive(STRATEGY_MEDIA, 642 SONIFICATION_HEADSET_MUSIC_DELAY, 643 sysTime) || 644 desc->isStrategyActive(STRATEGY_SONIFICATION, 645 SONIFICATION_HEADSET_MUSIC_DELAY, 646 sysTime)) && 647 (delayMs < (int)desc->mLatency*2)) { 648 delayMs = desc->mLatency*2; 649 } 650 setStrategyMute(STRATEGY_MEDIA, true, mOutputs.keyAt(i)); 651 setStrategyMute(STRATEGY_MEDIA, false, mOutputs.keyAt(i), MUTE_TIME_MS, 652 getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/)); 653 setStrategyMute(STRATEGY_SONIFICATION, true, mOutputs.keyAt(i)); 654 setStrategyMute(STRATEGY_SONIFICATION, false, mOutputs.keyAt(i), MUTE_TIME_MS, 655 getDeviceForStrategy(STRATEGY_SONIFICATION, true /*fromCache*/)); 656 } 657 } 658 659 // Note that despite the fact that getNewOutputDevice() is called on the primary output, 660 // the device returned is not necessarily reachable via this output 661 audio_devices_t rxDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 662 // force routing command to audio hardware when ending call 663 // even if no device change is needed 664 if (isStateInCall(oldState) && rxDevice == AUDIO_DEVICE_NONE) { 665 rxDevice = hwOutputDesc->device(); 666 } 667 668 if (state == AUDIO_MODE_IN_CALL) { 669 updateCallRouting(rxDevice, delayMs); 670 } else if (oldState == AUDIO_MODE_IN_CALL) { 671 if (mCallRxPatch != 0) { 672 mpClientInterface->releaseAudioPatch(mCallRxPatch->mAfPatchHandle, 0); 673 mCallRxPatch.clear(); 674 } 675 if (mCallTxPatch != 0) { 676 mpClientInterface->releaseAudioPatch(mCallTxPatch->mAfPatchHandle, 0); 677 mCallTxPatch.clear(); 678 } 679 setOutputDevice(mPrimaryOutput, rxDevice, force, 0); 680 } else { 681 setOutputDevice(mPrimaryOutput, rxDevice, force, 0); 682 } 683 // if entering in call state, handle special case of active streams 684 // pertaining to sonification strategy see handleIncallSonification() 685 if (isStateInCall(state)) { 686 ALOGV("setPhoneState() in call state management: new state is %d", state); 687 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 688 if (stream == AUDIO_STREAM_PATCH) { 689 continue; 690 } 691 handleIncallSonification((audio_stream_type_t)stream, true, true); 692 } 693 } 694 695 // Flag that ringtone volume must be limited to music volume until we exit MODE_RINGTONE 696 if (state == AUDIO_MODE_RINGTONE && 697 isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY)) { 698 mLimitRingtoneVolume = true; 699 } else { 700 mLimitRingtoneVolume = false; 701 } 702} 703 704void AudioPolicyManager::setForceUse(audio_policy_force_use_t usage, 705 audio_policy_forced_cfg_t config) 706{ 707 ALOGV("setForceUse() usage %d, config %d, mPhoneState %d", usage, config, mPhoneState); 708 709 bool forceVolumeReeval = false; 710 switch(usage) { 711 case AUDIO_POLICY_FORCE_FOR_COMMUNICATION: 712 if (config != AUDIO_POLICY_FORCE_SPEAKER && config != AUDIO_POLICY_FORCE_BT_SCO && 713 config != AUDIO_POLICY_FORCE_NONE) { 714 ALOGW("setForceUse() invalid config %d for FOR_COMMUNICATION", config); 715 return; 716 } 717 forceVolumeReeval = true; 718 mForceUse[usage] = config; 719 break; 720 case AUDIO_POLICY_FORCE_FOR_MEDIA: 721 if (config != AUDIO_POLICY_FORCE_HEADPHONES && config != AUDIO_POLICY_FORCE_BT_A2DP && 722 config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 723 config != AUDIO_POLICY_FORCE_ANALOG_DOCK && 724 config != AUDIO_POLICY_FORCE_DIGITAL_DOCK && config != AUDIO_POLICY_FORCE_NONE && 725 config != AUDIO_POLICY_FORCE_NO_BT_A2DP && config != AUDIO_POLICY_FORCE_SPEAKER ) { 726 ALOGW("setForceUse() invalid config %d for FOR_MEDIA", config); 727 return; 728 } 729 mForceUse[usage] = config; 730 break; 731 case AUDIO_POLICY_FORCE_FOR_RECORD: 732 if (config != AUDIO_POLICY_FORCE_BT_SCO && config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 733 config != AUDIO_POLICY_FORCE_NONE) { 734 ALOGW("setForceUse() invalid config %d for FOR_RECORD", config); 735 return; 736 } 737 mForceUse[usage] = config; 738 break; 739 case AUDIO_POLICY_FORCE_FOR_DOCK: 740 if (config != AUDIO_POLICY_FORCE_NONE && config != AUDIO_POLICY_FORCE_BT_CAR_DOCK && 741 config != AUDIO_POLICY_FORCE_BT_DESK_DOCK && 742 config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 743 config != AUDIO_POLICY_FORCE_ANALOG_DOCK && 744 config != AUDIO_POLICY_FORCE_DIGITAL_DOCK) { 745 ALOGW("setForceUse() invalid config %d for FOR_DOCK", config); 746 } 747 forceVolumeReeval = true; 748 mForceUse[usage] = config; 749 break; 750 case AUDIO_POLICY_FORCE_FOR_SYSTEM: 751 if (config != AUDIO_POLICY_FORCE_NONE && 752 config != AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) { 753 ALOGW("setForceUse() invalid config %d for FOR_SYSTEM", config); 754 } 755 forceVolumeReeval = true; 756 mForceUse[usage] = config; 757 break; 758 case AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO: 759 if (config != AUDIO_POLICY_FORCE_NONE && 760 config != AUDIO_POLICY_FORCE_HDMI_SYSTEM_AUDIO_ENFORCED) { 761 ALOGW("setForceUse() invalid config %d forHDMI_SYSTEM_AUDIO", config); 762 } 763 mForceUse[usage] = config; 764 break; 765 default: 766 ALOGW("setForceUse() invalid usage %d", usage); 767 break; 768 } 769 770 // check for device and output changes triggered by new force usage 771 checkA2dpSuspend(); 772 checkOutputForAllStrategies(); 773 updateDevicesAndOutputs(); 774 if (mPhoneState == AUDIO_MODE_IN_CALL) { 775 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, true /*fromCache*/); 776 updateCallRouting(newDevice); 777 } 778 for (size_t i = 0; i < mOutputs.size(); i++) { 779 audio_io_handle_t output = mOutputs.keyAt(i); 780 audio_devices_t newDevice = getNewOutputDevice(output, true /*fromCache*/); 781 if ((mPhoneState != AUDIO_MODE_IN_CALL) || (output != mPrimaryOutput)) { 782 setOutputDevice(output, newDevice, (newDevice != AUDIO_DEVICE_NONE)); 783 } 784 if (forceVolumeReeval && (newDevice != AUDIO_DEVICE_NONE)) { 785 applyStreamVolumes(output, newDevice, 0, true); 786 } 787 } 788 789 audio_io_handle_t activeInput = getActiveInput(); 790 if (activeInput != 0) { 791 setInputDevice(activeInput, getNewInputDevice(activeInput)); 792 } 793 794} 795 796audio_policy_forced_cfg_t AudioPolicyManager::getForceUse(audio_policy_force_use_t usage) 797{ 798 return mForceUse[usage]; 799} 800 801void AudioPolicyManager::setSystemProperty(const char* property, const char* value) 802{ 803 ALOGV("setSystemProperty() property %s, value %s", property, value); 804} 805 806// Find a direct output profile compatible with the parameters passed, even if the input flags do 807// not explicitly request a direct output 808sp<AudioPolicyManager::IOProfile> AudioPolicyManager::getProfileForDirectOutput( 809 audio_devices_t device, 810 uint32_t samplingRate, 811 audio_format_t format, 812 audio_channel_mask_t channelMask, 813 audio_output_flags_t flags) 814{ 815 for (size_t i = 0; i < mHwModules.size(); i++) { 816 if (mHwModules[i]->mHandle == 0) { 817 continue; 818 } 819 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) { 820 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 821 bool found = profile->isCompatibleProfile(device, samplingRate, 822 NULL /*updatedSamplingRate*/, format, channelMask, 823 flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD ? 824 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD : AUDIO_OUTPUT_FLAG_DIRECT); 825 if (found && (mAvailableOutputDevices.types() & profile->mSupportedDevices.types())) { 826 return profile; 827 } 828 } 829 } 830 return 0; 831} 832 833audio_io_handle_t AudioPolicyManager::getOutput(audio_stream_type_t stream, 834 uint32_t samplingRate, 835 audio_format_t format, 836 audio_channel_mask_t channelMask, 837 audio_output_flags_t flags, 838 const audio_offload_info_t *offloadInfo) 839{ 840 routing_strategy strategy = getStrategy(stream); 841 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 842 ALOGV("getOutput() device %d, stream %d, samplingRate %d, format %x, channelMask %x, flags %x", 843 device, stream, samplingRate, format, channelMask, flags); 844 845 return getOutputForDevice(device, AUDIO_SESSION_ALLOCATE, 846 stream, samplingRate,format, channelMask, 847 flags, offloadInfo); 848} 849 850status_t AudioPolicyManager::getOutputForAttr(const audio_attributes_t *attr, 851 audio_io_handle_t *output, 852 audio_session_t session, 853 audio_stream_type_t *stream, 854 uint32_t samplingRate, 855 audio_format_t format, 856 audio_channel_mask_t channelMask, 857 audio_output_flags_t flags, 858 const audio_offload_info_t *offloadInfo) 859{ 860 audio_attributes_t attributes; 861 if (attr != NULL) { 862 if (!isValidAttributes(attr)) { 863 ALOGE("getOutputForAttr() invalid attributes: usage=%d content=%d flags=0x%x tags=[%s]", 864 attr->usage, attr->content_type, attr->flags, 865 attr->tags); 866 return BAD_VALUE; 867 } 868 attributes = *attr; 869 } else { 870 if (*stream < AUDIO_STREAM_MIN || *stream >= AUDIO_STREAM_PUBLIC_CNT) { 871 ALOGE("getOutputForAttr(): invalid stream type"); 872 return BAD_VALUE; 873 } 874 stream_type_to_audio_attributes(*stream, &attributes); 875 } 876 877 ALOGV("getOutputForAttr() usage=%d, content=%d, tag=%s flags=%08x", 878 attributes.usage, attributes.content_type, attributes.tags, attributes.flags); 879 880 // TODO this is where filtering for custom policies (rerouting, dynamic sources) will go 881 routing_strategy strategy = (routing_strategy) getStrategyForAttr(&attributes); 882 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 883 884 if ((attributes.flags & AUDIO_FLAG_HW_AV_SYNC) != 0) { 885 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_HW_AV_SYNC); 886 } 887 888 ALOGV("getOutputForAttr() device 0x%x, samplingRate %d, format %x, channelMask %x, flags %x", 889 device, samplingRate, format, channelMask, flags); 890 891 *stream = streamTypefromAttributesInt(&attributes); 892 *output = getOutputForDevice(device, session, *stream, 893 samplingRate, format, channelMask, 894 flags, offloadInfo); 895 if (*output == AUDIO_IO_HANDLE_NONE) { 896 return INVALID_OPERATION; 897 } 898 return NO_ERROR; 899} 900 901audio_io_handle_t AudioPolicyManager::getOutputForDevice( 902 audio_devices_t device, 903 audio_session_t session __unused, 904 audio_stream_type_t stream, 905 uint32_t samplingRate, 906 audio_format_t format, 907 audio_channel_mask_t channelMask, 908 audio_output_flags_t flags, 909 const audio_offload_info_t *offloadInfo) 910{ 911 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 912 uint32_t latency = 0; 913 status_t status; 914 915#ifdef AUDIO_POLICY_TEST 916 if (mCurOutput != 0) { 917 ALOGV("getOutput() test output mCurOutput %d, samplingRate %d, format %d, channelMask %x, mDirectOutput %d", 918 mCurOutput, mTestSamplingRate, mTestFormat, mTestChannels, mDirectOutput); 919 920 if (mTestOutputs[mCurOutput] == 0) { 921 ALOGV("getOutput() opening test output"); 922 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(NULL); 923 outputDesc->mDevice = mTestDevice; 924 outputDesc->mLatency = mTestLatencyMs; 925 outputDesc->mFlags = 926 (audio_output_flags_t)(mDirectOutput ? AUDIO_OUTPUT_FLAG_DIRECT : 0); 927 outputDesc->mRefCount[stream] = 0; 928 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 929 config.sample_rate = mTestSamplingRate; 930 config.channel_mask = mTestChannels; 931 config.format = mTestFormat; 932 if (offloadInfo != NULL) { 933 config.offload_info = *offloadInfo; 934 } 935 status = mpClientInterface->openOutput(0, 936 &mTestOutputs[mCurOutput], 937 &config, 938 &outputDesc->mDevice, 939 String8(""), 940 &outputDesc->mLatency, 941 outputDesc->mFlags); 942 if (status == NO_ERROR) { 943 outputDesc->mSamplingRate = config.sample_rate; 944 outputDesc->mFormat = config.format; 945 outputDesc->mChannelMask = config.channel_mask; 946 AudioParameter outputCmd = AudioParameter(); 947 outputCmd.addInt(String8("set_id"),mCurOutput); 948 mpClientInterface->setParameters(mTestOutputs[mCurOutput],outputCmd.toString()); 949 addOutput(mTestOutputs[mCurOutput], outputDesc); 950 } 951 } 952 return mTestOutputs[mCurOutput]; 953 } 954#endif //AUDIO_POLICY_TEST 955 956 // open a direct output if required by specified parameters 957 //force direct flag if offload flag is set: offloading implies a direct output stream 958 // and all common behaviors are driven by checking only the direct flag 959 // this should normally be set appropriately in the policy configuration file 960 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 961 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 962 } 963 if ((flags & AUDIO_OUTPUT_FLAG_HW_AV_SYNC) != 0) { 964 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 965 } 966 // only allow deep buffering for music stream type 967 if (stream != AUDIO_STREAM_MUSIC) { 968 flags = (audio_output_flags_t)(flags &~AUDIO_OUTPUT_FLAG_DEEP_BUFFER); 969 } 970 971 sp<IOProfile> profile; 972 973 // skip direct output selection if the request can obviously be attached to a mixed output 974 // and not explicitly requested 975 if (((flags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) && 976 audio_is_linear_pcm(format) && samplingRate <= MAX_MIXER_SAMPLING_RATE && 977 audio_channel_count_from_out_mask(channelMask) <= 2) { 978 goto non_direct_output; 979 } 980 981 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 982 // creating an offloaded track and tearing it down immediately after start when audioflinger 983 // detects there is an active non offloadable effect. 984 // FIXME: We should check the audio session here but we do not have it in this context. 985 // This may prevent offloading in rare situations where effects are left active by apps 986 // in the background. 987 988 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) || 989 !isNonOffloadableEffectEnabled()) { 990 profile = getProfileForDirectOutput(device, 991 samplingRate, 992 format, 993 channelMask, 994 (audio_output_flags_t)flags); 995 } 996 997 if (profile != 0) { 998 sp<AudioOutputDescriptor> outputDesc = NULL; 999 1000 for (size_t i = 0; i < mOutputs.size(); i++) { 1001 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1002 if (!desc->isDuplicated() && (profile == desc->mProfile)) { 1003 outputDesc = desc; 1004 // reuse direct output if currently open and configured with same parameters 1005 if ((samplingRate == outputDesc->mSamplingRate) && 1006 (format == outputDesc->mFormat) && 1007 (channelMask == outputDesc->mChannelMask)) { 1008 outputDesc->mDirectOpenCount++; 1009 ALOGV("getOutput() reusing direct output %d", mOutputs.keyAt(i)); 1010 return mOutputs.keyAt(i); 1011 } 1012 } 1013 } 1014 // close direct output if currently open and configured with different parameters 1015 if (outputDesc != NULL) { 1016 closeOutput(outputDesc->mIoHandle); 1017 } 1018 outputDesc = new AudioOutputDescriptor(profile); 1019 outputDesc->mDevice = device; 1020 outputDesc->mLatency = 0; 1021 outputDesc->mFlags =(audio_output_flags_t) (outputDesc->mFlags | flags); 1022 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 1023 config.sample_rate = samplingRate; 1024 config.channel_mask = channelMask; 1025 config.format = format; 1026 if (offloadInfo != NULL) { 1027 config.offload_info = *offloadInfo; 1028 } 1029 status = mpClientInterface->openOutput(profile->mModule->mHandle, 1030 &output, 1031 &config, 1032 &outputDesc->mDevice, 1033 String8(""), 1034 &outputDesc->mLatency, 1035 outputDesc->mFlags); 1036 1037 // only accept an output with the requested parameters 1038 if (status != NO_ERROR || 1039 (samplingRate != 0 && samplingRate != config.sample_rate) || 1040 (format != AUDIO_FORMAT_DEFAULT && format != config.format) || 1041 (channelMask != 0 && channelMask != config.channel_mask)) { 1042 ALOGV("getOutput() failed opening direct output: output %d samplingRate %d %d," 1043 "format %d %d, channelMask %04x %04x", output, samplingRate, 1044 outputDesc->mSamplingRate, format, outputDesc->mFormat, channelMask, 1045 outputDesc->mChannelMask); 1046 if (output != AUDIO_IO_HANDLE_NONE) { 1047 mpClientInterface->closeOutput(output); 1048 } 1049 return AUDIO_IO_HANDLE_NONE; 1050 } 1051 outputDesc->mSamplingRate = config.sample_rate; 1052 outputDesc->mChannelMask = config.channel_mask; 1053 outputDesc->mFormat = config.format; 1054 outputDesc->mRefCount[stream] = 0; 1055 outputDesc->mStopTime[stream] = 0; 1056 outputDesc->mDirectOpenCount = 1; 1057 1058 audio_io_handle_t srcOutput = getOutputForEffect(); 1059 addOutput(output, outputDesc); 1060 audio_io_handle_t dstOutput = getOutputForEffect(); 1061 if (dstOutput == output) { 1062 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, srcOutput, dstOutput); 1063 } 1064 mPreviousOutputs = mOutputs; 1065 ALOGV("getOutput() returns new direct output %d", output); 1066 mpClientInterface->onAudioPortListUpdate(); 1067 return output; 1068 } 1069 1070non_direct_output: 1071 1072 // ignoring channel mask due to downmix capability in mixer 1073 1074 // open a non direct output 1075 1076 // for non direct outputs, only PCM is supported 1077 if (audio_is_linear_pcm(format)) { 1078 // get which output is suitable for the specified stream. The actual 1079 // routing change will happen when startOutput() will be called 1080 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(device, mOutputs); 1081 1082 // at this stage we should ignore the DIRECT flag as no direct output could be found earlier 1083 flags = (audio_output_flags_t)(flags & ~AUDIO_OUTPUT_FLAG_DIRECT); 1084 output = selectOutput(outputs, flags, format); 1085 } 1086 ALOGW_IF((output == 0), "getOutput() could not find output for stream %d, samplingRate %d," 1087 "format %d, channels %x, flags %x", stream, samplingRate, format, channelMask, flags); 1088 1089 ALOGV("getOutput() returns output %d", output); 1090 1091 return output; 1092} 1093 1094audio_io_handle_t AudioPolicyManager::selectOutput(const SortedVector<audio_io_handle_t>& outputs, 1095 audio_output_flags_t flags, 1096 audio_format_t format) 1097{ 1098 // select one output among several that provide a path to a particular device or set of 1099 // devices (the list was previously build by getOutputsForDevice()). 1100 // The priority is as follows: 1101 // 1: the output with the highest number of requested policy flags 1102 // 2: the primary output 1103 // 3: the first output in the list 1104 1105 if (outputs.size() == 0) { 1106 return 0; 1107 } 1108 if (outputs.size() == 1) { 1109 return outputs[0]; 1110 } 1111 1112 int maxCommonFlags = 0; 1113 audio_io_handle_t outputFlags = 0; 1114 audio_io_handle_t outputPrimary = 0; 1115 1116 for (size_t i = 0; i < outputs.size(); i++) { 1117 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 1118 if (!outputDesc->isDuplicated()) { 1119 // if a valid format is specified, skip output if not compatible 1120 if (format != AUDIO_FORMAT_INVALID) { 1121 if (outputDesc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 1122 if (format != outputDesc->mFormat) { 1123 continue; 1124 } 1125 } else if (!audio_is_linear_pcm(format)) { 1126 continue; 1127 } 1128 } 1129 1130 int commonFlags = popcount(outputDesc->mProfile->mFlags & flags); 1131 if (commonFlags > maxCommonFlags) { 1132 outputFlags = outputs[i]; 1133 maxCommonFlags = commonFlags; 1134 ALOGV("selectOutput() commonFlags for output %d, %04x", outputs[i], commonFlags); 1135 } 1136 if (outputDesc->mProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 1137 outputPrimary = outputs[i]; 1138 } 1139 } 1140 } 1141 1142 if (outputFlags != 0) { 1143 return outputFlags; 1144 } 1145 if (outputPrimary != 0) { 1146 return outputPrimary; 1147 } 1148 1149 return outputs[0]; 1150} 1151 1152status_t AudioPolicyManager::startOutput(audio_io_handle_t output, 1153 audio_stream_type_t stream, 1154 audio_session_t session) 1155{ 1156 ALOGV("startOutput() output %d, stream %d, session %d", output, stream, session); 1157 ssize_t index = mOutputs.indexOfKey(output); 1158 if (index < 0) { 1159 ALOGW("startOutput() unknown output %d", output); 1160 return BAD_VALUE; 1161 } 1162 1163 // cannot start playback of STREAM_TTS if any other output is being used 1164 uint32_t beaconMuteLatency = 0; 1165 if (stream == AUDIO_STREAM_TTS) { 1166 ALOGV("\t found BEACON stream"); 1167 if (isAnyOutputActive(AUDIO_STREAM_TTS /*streamToIgnore*/)) { 1168 return INVALID_OPERATION; 1169 } else { 1170 beaconMuteLatency = handleEventForBeacon(STARTING_BEACON); 1171 } 1172 } else { 1173 // some playback other than beacon starts 1174 beaconMuteLatency = handleEventForBeacon(STARTING_OUTPUT); 1175 } 1176 1177 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1178 1179 // increment usage count for this stream on the requested output: 1180 // NOTE that the usage count is the same for duplicated output and hardware output which is 1181 // necessary for a correct control of hardware output routing by startOutput() and stopOutput() 1182 outputDesc->changeRefCount(stream, 1); 1183 1184 if (outputDesc->mRefCount[stream] == 1) { 1185 audio_devices_t newDevice = getNewOutputDevice(output, false /*fromCache*/); 1186 routing_strategy strategy = getStrategy(stream); 1187 bool shouldWait = (strategy == STRATEGY_SONIFICATION) || 1188 (strategy == STRATEGY_SONIFICATION_RESPECTFUL) || 1189 (beaconMuteLatency > 0); 1190 uint32_t waitMs = beaconMuteLatency; 1191 bool force = false; 1192 for (size_t i = 0; i < mOutputs.size(); i++) { 1193 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1194 if (desc != outputDesc) { 1195 // force a device change if any other output is managed by the same hw 1196 // module and has a current device selection that differs from selected device. 1197 // In this case, the audio HAL must receive the new device selection so that it can 1198 // change the device currently selected by the other active output. 1199 if (outputDesc->sharesHwModuleWith(desc) && 1200 desc->device() != newDevice) { 1201 force = true; 1202 } 1203 // wait for audio on other active outputs to be presented when starting 1204 // a notification so that audio focus effect can propagate, or that a mute/unmute 1205 // event occurred for beacon 1206 uint32_t latency = desc->latency(); 1207 if (shouldWait && desc->isActive(latency * 2) && (waitMs < latency)) { 1208 waitMs = latency; 1209 } 1210 } 1211 } 1212 uint32_t muteWaitMs = setOutputDevice(output, newDevice, force); 1213 1214 // handle special case for sonification while in call 1215 if (isInCall()) { 1216 handleIncallSonification(stream, true, false); 1217 } 1218 1219 // apply volume rules for current stream and device if necessary 1220 checkAndSetVolume(stream, 1221 mStreams[stream].getVolumeIndex(newDevice), 1222 output, 1223 newDevice); 1224 1225 // update the outputs if starting an output with a stream that can affect notification 1226 // routing 1227 handleNotificationRoutingForStream(stream); 1228 if (waitMs > muteWaitMs) { 1229 usleep((waitMs - muteWaitMs) * 2 * 1000); 1230 } 1231 } 1232 return NO_ERROR; 1233} 1234 1235 1236status_t AudioPolicyManager::stopOutput(audio_io_handle_t output, 1237 audio_stream_type_t stream, 1238 audio_session_t session) 1239{ 1240 ALOGV("stopOutput() output %d, stream %d, session %d", output, stream, session); 1241 ssize_t index = mOutputs.indexOfKey(output); 1242 if (index < 0) { 1243 ALOGW("stopOutput() unknown output %d", output); 1244 return BAD_VALUE; 1245 } 1246 1247 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1248 1249 // always handle stream stop, check which stream type is stopping 1250 handleEventForBeacon(stream == AUDIO_STREAM_TTS ? STOPPING_BEACON : STOPPING_OUTPUT); 1251 1252 // handle special case for sonification while in call 1253 if (isInCall()) { 1254 handleIncallSonification(stream, false, false); 1255 } 1256 1257 if (outputDesc->mRefCount[stream] > 0) { 1258 // decrement usage count of this stream on the output 1259 outputDesc->changeRefCount(stream, -1); 1260 // store time at which the stream was stopped - see isStreamActive() 1261 if (outputDesc->mRefCount[stream] == 0) { 1262 outputDesc->mStopTime[stream] = systemTime(); 1263 audio_devices_t newDevice = getNewOutputDevice(output, false /*fromCache*/); 1264 // delay the device switch by twice the latency because stopOutput() is executed when 1265 // the track stop() command is received and at that time the audio track buffer can 1266 // still contain data that needs to be drained. The latency only covers the audio HAL 1267 // and kernel buffers. Also the latency does not always include additional delay in the 1268 // audio path (audio DSP, CODEC ...) 1269 setOutputDevice(output, newDevice, false, outputDesc->mLatency*2); 1270 1271 // force restoring the device selection on other active outputs if it differs from the 1272 // one being selected for this output 1273 for (size_t i = 0; i < mOutputs.size(); i++) { 1274 audio_io_handle_t curOutput = mOutputs.keyAt(i); 1275 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1276 if (curOutput != output && 1277 desc->isActive() && 1278 outputDesc->sharesHwModuleWith(desc) && 1279 (newDevice != desc->device())) { 1280 setOutputDevice(curOutput, 1281 getNewOutputDevice(curOutput, false /*fromCache*/), 1282 true, 1283 outputDesc->mLatency*2); 1284 } 1285 } 1286 // update the outputs if stopping one with a stream that can affect notification routing 1287 handleNotificationRoutingForStream(stream); 1288 } 1289 return NO_ERROR; 1290 } else { 1291 ALOGW("stopOutput() refcount is already 0 for output %d", output); 1292 return INVALID_OPERATION; 1293 } 1294} 1295 1296void AudioPolicyManager::releaseOutput(audio_io_handle_t output, 1297 audio_stream_type_t stream __unused, 1298 audio_session_t session __unused) 1299{ 1300 ALOGV("releaseOutput() %d", output); 1301 ssize_t index = mOutputs.indexOfKey(output); 1302 if (index < 0) { 1303 ALOGW("releaseOutput() releasing unknown output %d", output); 1304 return; 1305 } 1306 1307#ifdef AUDIO_POLICY_TEST 1308 int testIndex = testOutputIndex(output); 1309 if (testIndex != 0) { 1310 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1311 if (outputDesc->isActive()) { 1312 mpClientInterface->closeOutput(output); 1313 mOutputs.removeItem(output); 1314 mTestOutputs[testIndex] = 0; 1315 } 1316 return; 1317 } 1318#endif //AUDIO_POLICY_TEST 1319 1320 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(index); 1321 if (desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 1322 if (desc->mDirectOpenCount <= 0) { 1323 ALOGW("releaseOutput() invalid open count %d for output %d", 1324 desc->mDirectOpenCount, output); 1325 return; 1326 } 1327 if (--desc->mDirectOpenCount == 0) { 1328 closeOutput(output); 1329 // If effects where present on the output, audioflinger moved them to the primary 1330 // output by default: move them back to the appropriate output. 1331 audio_io_handle_t dstOutput = getOutputForEffect(); 1332 if (dstOutput != mPrimaryOutput) { 1333 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, mPrimaryOutput, dstOutput); 1334 } 1335 mpClientInterface->onAudioPortListUpdate(); 1336 } 1337 } 1338} 1339 1340 1341status_t AudioPolicyManager::getInputForAttr(const audio_attributes_t *attr, 1342 audio_io_handle_t *input, 1343 audio_session_t session, 1344 uint32_t samplingRate, 1345 audio_format_t format, 1346 audio_channel_mask_t channelMask, 1347 audio_input_flags_t flags) 1348{ 1349 ALOGV("getInputForAttr() source %d, samplingRate %d, format %d, channelMask %x," 1350 "session %d, flags %#x", 1351 attr->source, samplingRate, format, channelMask, session, flags); 1352 1353 audio_devices_t device = getDeviceForInputSource(attr->source); 1354 1355 if (device == AUDIO_DEVICE_NONE) { 1356 ALOGW("getInputForAttr() could not find device for source %d", attr->source); 1357 return BAD_VALUE; 1358 } 1359 1360 // adapt channel selection to input source 1361 switch (attr->source) { 1362 case AUDIO_SOURCE_VOICE_UPLINK: 1363 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK; 1364 break; 1365 case AUDIO_SOURCE_VOICE_DOWNLINK: 1366 channelMask = AUDIO_CHANNEL_IN_VOICE_DNLINK; 1367 break; 1368 case AUDIO_SOURCE_VOICE_CALL: 1369 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK | AUDIO_CHANNEL_IN_VOICE_DNLINK; 1370 break; 1371 default: 1372 break; 1373 } 1374 1375 *input = AUDIO_IO_HANDLE_NONE; 1376 bool isSoundTrigger = false; 1377 audio_source_t halInputSource = attr->source; 1378 if (attr->source == AUDIO_SOURCE_HOTWORD) { 1379 ssize_t index = mSoundTriggerSessions.indexOfKey(session); 1380 if (index >= 0) { 1381 *input = mSoundTriggerSessions.valueFor(session); 1382 isSoundTrigger = true; 1383 flags = (audio_input_flags_t)(flags | AUDIO_INPUT_FLAG_HW_HOTWORD); 1384 ALOGV("SoundTrigger capture on session %d input %d", session, *input); 1385 } else { 1386 halInputSource = AUDIO_SOURCE_VOICE_RECOGNITION; 1387 } 1388 } 1389 1390 sp<IOProfile> profile = getInputProfile(device, 1391 samplingRate, 1392 format, 1393 channelMask, 1394 flags); 1395 if (profile == 0) { 1396 //retry without flags 1397 audio_input_flags_t log_flags = flags; 1398 flags = AUDIO_INPUT_FLAG_NONE; 1399 profile = getInputProfile(device, 1400 samplingRate, 1401 format, 1402 channelMask, 1403 flags); 1404 if (profile == 0) { 1405 ALOGW("getInputForAttr() could not find profile for device 0x%X, samplingRate %u," 1406 "format %#x, channelMask 0x%X, flags %#x", 1407 device, samplingRate, format, channelMask, log_flags); 1408 return BAD_VALUE; 1409 } 1410 } 1411 1412 if (profile->mModule->mHandle == 0) { 1413 ALOGE("getInputForAttr(): HW module %s not opened", profile->mModule->mName); 1414 return NO_INIT; 1415 } 1416 1417 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 1418 config.sample_rate = samplingRate; 1419 config.channel_mask = channelMask; 1420 config.format = format; 1421 1422 // handle legacy remote submix case where the address was not always specified 1423 String8 address = deviceDistinguishesOnAddress(device) ? String8("0") : String8(""); 1424 1425 status_t status = mpClientInterface->openInput(profile->mModule->mHandle, 1426 input, 1427 &config, 1428 &device, 1429 address, 1430 halInputSource, 1431 flags); 1432 1433 // only accept input with the exact requested set of parameters 1434 if (status != NO_ERROR || *input == AUDIO_IO_HANDLE_NONE || 1435 (samplingRate != config.sample_rate) || 1436 (format != config.format) || 1437 (channelMask != config.channel_mask)) { 1438 ALOGW("getInputForAttr() failed opening input: samplingRate %d, format %d, channelMask %x", 1439 samplingRate, format, channelMask); 1440 if (*input != AUDIO_IO_HANDLE_NONE) { 1441 mpClientInterface->closeInput(*input); 1442 } 1443 return BAD_VALUE; 1444 } 1445 1446 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(profile); 1447 inputDesc->mInputSource = attr->source; 1448 inputDesc->mRefCount = 0; 1449 inputDesc->mOpenRefCount = 1; 1450 inputDesc->mSamplingRate = samplingRate; 1451 inputDesc->mFormat = format; 1452 inputDesc->mChannelMask = channelMask; 1453 inputDesc->mDevice = device; 1454 inputDesc->mSessions.add(session); 1455 inputDesc->mIsSoundTrigger = isSoundTrigger; 1456 1457 addInput(*input, inputDesc); 1458 mpClientInterface->onAudioPortListUpdate(); 1459 return NO_ERROR; 1460} 1461 1462status_t AudioPolicyManager::startInput(audio_io_handle_t input, 1463 audio_session_t session) 1464{ 1465 ALOGV("startInput() input %d", input); 1466 ssize_t index = mInputs.indexOfKey(input); 1467 if (index < 0) { 1468 ALOGW("startInput() unknown input %d", input); 1469 return BAD_VALUE; 1470 } 1471 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1472 1473 index = inputDesc->mSessions.indexOf(session); 1474 if (index < 0) { 1475 ALOGW("startInput() unknown session %d on input %d", session, input); 1476 return BAD_VALUE; 1477 } 1478 1479 // virtual input devices are compatible with other input devices 1480 if (!isVirtualInputDevice(inputDesc->mDevice)) { 1481 1482 // for a non-virtual input device, check if there is another (non-virtual) active input 1483 audio_io_handle_t activeInput = getActiveInput(); 1484 if (activeInput != 0 && activeInput != input) { 1485 1486 // If the already active input uses AUDIO_SOURCE_HOTWORD then it is closed, 1487 // otherwise the active input continues and the new input cannot be started. 1488 sp<AudioInputDescriptor> activeDesc = mInputs.valueFor(activeInput); 1489 if (activeDesc->mInputSource == AUDIO_SOURCE_HOTWORD) { 1490 ALOGW("startInput(%d) preempting low-priority input %d", input, activeInput); 1491 stopInput(activeInput, activeDesc->mSessions.itemAt(0)); 1492 releaseInput(activeInput, activeDesc->mSessions.itemAt(0)); 1493 } else { 1494 ALOGE("startInput(%d) failed: other input %d already started", input, activeInput); 1495 return INVALID_OPERATION; 1496 } 1497 } 1498 } 1499 1500 if (inputDesc->mRefCount == 0) { 1501 if (activeInputsCount() == 0) { 1502 SoundTrigger::setCaptureState(true); 1503 } 1504 setInputDevice(input, getNewInputDevice(input), true /* force */); 1505 1506 // Automatically enable the remote submix output when input is started. 1507 // For remote submix (a virtual device), we open only one input per capture request. 1508 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1509 setDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1510 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, AUDIO_REMOTE_SUBMIX_DEVICE_ADDRESS); 1511 } 1512 } 1513 1514 ALOGV("AudioPolicyManager::startInput() input source = %d", inputDesc->mInputSource); 1515 1516 inputDesc->mRefCount++; 1517 return NO_ERROR; 1518} 1519 1520status_t AudioPolicyManager::stopInput(audio_io_handle_t input, 1521 audio_session_t session) 1522{ 1523 ALOGV("stopInput() input %d", input); 1524 ssize_t index = mInputs.indexOfKey(input); 1525 if (index < 0) { 1526 ALOGW("stopInput() unknown input %d", input); 1527 return BAD_VALUE; 1528 } 1529 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1530 1531 index = inputDesc->mSessions.indexOf(session); 1532 if (index < 0) { 1533 ALOGW("stopInput() unknown session %d on input %d", session, input); 1534 return BAD_VALUE; 1535 } 1536 1537 if (inputDesc->mRefCount == 0) { 1538 ALOGW("stopInput() input %d already stopped", input); 1539 return INVALID_OPERATION; 1540 } 1541 1542 inputDesc->mRefCount--; 1543 if (inputDesc->mRefCount == 0) { 1544 1545 // automatically disable the remote submix output when input is stopped 1546 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1547 setDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1548 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, AUDIO_REMOTE_SUBMIX_DEVICE_ADDRESS); 1549 } 1550 1551 resetInputDevice(input); 1552 1553 if (activeInputsCount() == 0) { 1554 SoundTrigger::setCaptureState(false); 1555 } 1556 } 1557 return NO_ERROR; 1558} 1559 1560void AudioPolicyManager::releaseInput(audio_io_handle_t input, 1561 audio_session_t session) 1562{ 1563 ALOGV("releaseInput() %d", input); 1564 ssize_t index = mInputs.indexOfKey(input); 1565 if (index < 0) { 1566 ALOGW("releaseInput() releasing unknown input %d", input); 1567 return; 1568 } 1569 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1570 ALOG_ASSERT(inputDesc != 0); 1571 1572 index = inputDesc->mSessions.indexOf(session); 1573 if (index < 0) { 1574 ALOGW("releaseInput() unknown session %d on input %d", session, input); 1575 return; 1576 } 1577 inputDesc->mSessions.remove(session); 1578 if (inputDesc->mOpenRefCount == 0) { 1579 ALOGW("releaseInput() invalid open ref count %d", inputDesc->mOpenRefCount); 1580 return; 1581 } 1582 inputDesc->mOpenRefCount--; 1583 if (inputDesc->mOpenRefCount > 0) { 1584 ALOGV("releaseInput() exit > 0"); 1585 return; 1586 } 1587 1588 closeInput(input); 1589 mpClientInterface->onAudioPortListUpdate(); 1590 ALOGV("releaseInput() exit"); 1591} 1592 1593void AudioPolicyManager::closeAllInputs() { 1594 bool patchRemoved = false; 1595 1596 for(size_t input_index = 0; input_index < mInputs.size(); input_index++) { 1597 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(input_index); 1598 ssize_t patch_index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 1599 if (patch_index >= 0) { 1600 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(patch_index); 1601 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 1602 mAudioPatches.removeItemsAt(patch_index); 1603 patchRemoved = true; 1604 } 1605 mpClientInterface->closeInput(mInputs.keyAt(input_index)); 1606 } 1607 mInputs.clear(); 1608 nextAudioPortGeneration(); 1609 1610 if (patchRemoved) { 1611 mpClientInterface->onAudioPatchListUpdate(); 1612 } 1613} 1614 1615void AudioPolicyManager::initStreamVolume(audio_stream_type_t stream, 1616 int indexMin, 1617 int indexMax) 1618{ 1619 ALOGV("initStreamVolume() stream %d, min %d, max %d", stream , indexMin, indexMax); 1620 if (indexMin < 0 || indexMin >= indexMax) { 1621 ALOGW("initStreamVolume() invalid index limits for stream %d, min %d, max %d", stream , indexMin, indexMax); 1622 return; 1623 } 1624 mStreams[stream].mIndexMin = indexMin; 1625 mStreams[stream].mIndexMax = indexMax; 1626 //FIXME: AUDIO_STREAM_ACCESSIBILITY volume follows AUDIO_STREAM_MUSIC for now 1627 if (stream == AUDIO_STREAM_MUSIC) { 1628 mStreams[AUDIO_STREAM_ACCESSIBILITY].mIndexMin = indexMin; 1629 mStreams[AUDIO_STREAM_ACCESSIBILITY].mIndexMax = indexMax; 1630 } 1631} 1632 1633status_t AudioPolicyManager::setStreamVolumeIndex(audio_stream_type_t stream, 1634 int index, 1635 audio_devices_t device) 1636{ 1637 1638 if ((index < mStreams[stream].mIndexMin) || (index > mStreams[stream].mIndexMax)) { 1639 return BAD_VALUE; 1640 } 1641 if (!audio_is_output_device(device)) { 1642 return BAD_VALUE; 1643 } 1644 1645 // Force max volume if stream cannot be muted 1646 if (!mStreams[stream].mCanBeMuted) index = mStreams[stream].mIndexMax; 1647 1648 ALOGV("setStreamVolumeIndex() stream %d, device %04x, index %d", 1649 stream, device, index); 1650 1651 // if device is AUDIO_DEVICE_OUT_DEFAULT set default value and 1652 // clear all device specific values 1653 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1654 mStreams[stream].mIndexCur.clear(); 1655 } 1656 mStreams[stream].mIndexCur.add(device, index); 1657 1658 // update volume on all outputs whose current device is also selected by the same 1659 // strategy as the device specified by the caller 1660 audio_devices_t strategyDevice = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1661 1662 1663 //FIXME: AUDIO_STREAM_ACCESSIBILITY volume follows AUDIO_STREAM_MUSIC for now 1664 audio_devices_t accessibilityDevice = AUDIO_DEVICE_NONE; 1665 if (stream == AUDIO_STREAM_MUSIC) { 1666 mStreams[AUDIO_STREAM_ACCESSIBILITY].mIndexCur.add(device, index); 1667 accessibilityDevice = getDeviceForStrategy(STRATEGY_ACCESSIBILITY, true /*fromCache*/); 1668 } 1669 if ((device != AUDIO_DEVICE_OUT_DEFAULT) && 1670 (device & (strategyDevice | accessibilityDevice)) == 0) { 1671 return NO_ERROR; 1672 } 1673 status_t status = NO_ERROR; 1674 for (size_t i = 0; i < mOutputs.size(); i++) { 1675 audio_devices_t curDevice = 1676 getDeviceForVolume(mOutputs.valueAt(i)->device()); 1677 if ((device == AUDIO_DEVICE_OUT_DEFAULT) || ((curDevice & strategyDevice) != 0)) { 1678 status_t volStatus = checkAndSetVolume(stream, index, mOutputs.keyAt(i), curDevice); 1679 if (volStatus != NO_ERROR) { 1680 status = volStatus; 1681 } 1682 } 1683 if ((device == AUDIO_DEVICE_OUT_DEFAULT) || ((curDevice & accessibilityDevice) != 0)) { 1684 status_t volStatus = checkAndSetVolume(AUDIO_STREAM_ACCESSIBILITY, 1685 index, mOutputs.keyAt(i), curDevice); 1686 } 1687 } 1688 return status; 1689} 1690 1691status_t AudioPolicyManager::getStreamVolumeIndex(audio_stream_type_t stream, 1692 int *index, 1693 audio_devices_t device) 1694{ 1695 if (index == NULL) { 1696 return BAD_VALUE; 1697 } 1698 if (!audio_is_output_device(device)) { 1699 return BAD_VALUE; 1700 } 1701 // if device is AUDIO_DEVICE_OUT_DEFAULT, return volume for device corresponding to 1702 // the strategy the stream belongs to. 1703 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1704 device = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1705 } 1706 device = getDeviceForVolume(device); 1707 1708 *index = mStreams[stream].getVolumeIndex(device); 1709 ALOGV("getStreamVolumeIndex() stream %d device %08x index %d", stream, device, *index); 1710 return NO_ERROR; 1711} 1712 1713audio_io_handle_t AudioPolicyManager::selectOutputForEffects( 1714 const SortedVector<audio_io_handle_t>& outputs) 1715{ 1716 // select one output among several suitable for global effects. 1717 // The priority is as follows: 1718 // 1: An offloaded output. If the effect ends up not being offloadable, 1719 // AudioFlinger will invalidate the track and the offloaded output 1720 // will be closed causing the effect to be moved to a PCM output. 1721 // 2: A deep buffer output 1722 // 3: the first output in the list 1723 1724 if (outputs.size() == 0) { 1725 return 0; 1726 } 1727 1728 audio_io_handle_t outputOffloaded = 0; 1729 audio_io_handle_t outputDeepBuffer = 0; 1730 1731 for (size_t i = 0; i < outputs.size(); i++) { 1732 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 1733 ALOGV("selectOutputForEffects outputs[%zu] flags %x", i, desc->mFlags); 1734 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1735 outputOffloaded = outputs[i]; 1736 } 1737 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) != 0) { 1738 outputDeepBuffer = outputs[i]; 1739 } 1740 } 1741 1742 ALOGV("selectOutputForEffects outputOffloaded %d outputDeepBuffer %d", 1743 outputOffloaded, outputDeepBuffer); 1744 if (outputOffloaded != 0) { 1745 return outputOffloaded; 1746 } 1747 if (outputDeepBuffer != 0) { 1748 return outputDeepBuffer; 1749 } 1750 1751 return outputs[0]; 1752} 1753 1754audio_io_handle_t AudioPolicyManager::getOutputForEffect(const effect_descriptor_t *desc) 1755{ 1756 // apply simple rule where global effects are attached to the same output as MUSIC streams 1757 1758 routing_strategy strategy = getStrategy(AUDIO_STREAM_MUSIC); 1759 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 1760 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(device, mOutputs); 1761 1762 audio_io_handle_t output = selectOutputForEffects(dstOutputs); 1763 ALOGV("getOutputForEffect() got output %d for fx %s flags %x", 1764 output, (desc == NULL) ? "unspecified" : desc->name, (desc == NULL) ? 0 : desc->flags); 1765 1766 return output; 1767} 1768 1769status_t AudioPolicyManager::registerEffect(const effect_descriptor_t *desc, 1770 audio_io_handle_t io, 1771 uint32_t strategy, 1772 int session, 1773 int id) 1774{ 1775 ssize_t index = mOutputs.indexOfKey(io); 1776 if (index < 0) { 1777 index = mInputs.indexOfKey(io); 1778 if (index < 0) { 1779 ALOGW("registerEffect() unknown io %d", io); 1780 return INVALID_OPERATION; 1781 } 1782 } 1783 1784 if (mTotalEffectsMemory + desc->memoryUsage > getMaxEffectsMemory()) { 1785 ALOGW("registerEffect() memory limit exceeded for Fx %s, Memory %d KB", 1786 desc->name, desc->memoryUsage); 1787 return INVALID_OPERATION; 1788 } 1789 mTotalEffectsMemory += desc->memoryUsage; 1790 ALOGV("registerEffect() effect %s, io %d, strategy %d session %d id %d", 1791 desc->name, io, strategy, session, id); 1792 ALOGV("registerEffect() memory %d, total memory %d", desc->memoryUsage, mTotalEffectsMemory); 1793 1794 sp<EffectDescriptor> effectDesc = new EffectDescriptor(); 1795 memcpy (&effectDesc->mDesc, desc, sizeof(effect_descriptor_t)); 1796 effectDesc->mIo = io; 1797 effectDesc->mStrategy = (routing_strategy)strategy; 1798 effectDesc->mSession = session; 1799 effectDesc->mEnabled = false; 1800 1801 mEffects.add(id, effectDesc); 1802 1803 return NO_ERROR; 1804} 1805 1806status_t AudioPolicyManager::unregisterEffect(int id) 1807{ 1808 ssize_t index = mEffects.indexOfKey(id); 1809 if (index < 0) { 1810 ALOGW("unregisterEffect() unknown effect ID %d", id); 1811 return INVALID_OPERATION; 1812 } 1813 1814 sp<EffectDescriptor> effectDesc = mEffects.valueAt(index); 1815 1816 setEffectEnabled(effectDesc, false); 1817 1818 if (mTotalEffectsMemory < effectDesc->mDesc.memoryUsage) { 1819 ALOGW("unregisterEffect() memory %d too big for total %d", 1820 effectDesc->mDesc.memoryUsage, mTotalEffectsMemory); 1821 effectDesc->mDesc.memoryUsage = mTotalEffectsMemory; 1822 } 1823 mTotalEffectsMemory -= effectDesc->mDesc.memoryUsage; 1824 ALOGV("unregisterEffect() effect %s, ID %d, memory %d total memory %d", 1825 effectDesc->mDesc.name, id, effectDesc->mDesc.memoryUsage, mTotalEffectsMemory); 1826 1827 mEffects.removeItem(id); 1828 1829 return NO_ERROR; 1830} 1831 1832status_t AudioPolicyManager::setEffectEnabled(int id, bool enabled) 1833{ 1834 ssize_t index = mEffects.indexOfKey(id); 1835 if (index < 0) { 1836 ALOGW("unregisterEffect() unknown effect ID %d", id); 1837 return INVALID_OPERATION; 1838 } 1839 1840 return setEffectEnabled(mEffects.valueAt(index), enabled); 1841} 1842 1843status_t AudioPolicyManager::setEffectEnabled(const sp<EffectDescriptor>& effectDesc, bool enabled) 1844{ 1845 if (enabled == effectDesc->mEnabled) { 1846 ALOGV("setEffectEnabled(%s) effect already %s", 1847 enabled?"true":"false", enabled?"enabled":"disabled"); 1848 return INVALID_OPERATION; 1849 } 1850 1851 if (enabled) { 1852 if (mTotalEffectsCpuLoad + effectDesc->mDesc.cpuLoad > getMaxEffectsCpuLoad()) { 1853 ALOGW("setEffectEnabled(true) CPU Load limit exceeded for Fx %s, CPU %f MIPS", 1854 effectDesc->mDesc.name, (float)effectDesc->mDesc.cpuLoad/10); 1855 return INVALID_OPERATION; 1856 } 1857 mTotalEffectsCpuLoad += effectDesc->mDesc.cpuLoad; 1858 ALOGV("setEffectEnabled(true) total CPU %d", mTotalEffectsCpuLoad); 1859 } else { 1860 if (mTotalEffectsCpuLoad < effectDesc->mDesc.cpuLoad) { 1861 ALOGW("setEffectEnabled(false) CPU load %d too high for total %d", 1862 effectDesc->mDesc.cpuLoad, mTotalEffectsCpuLoad); 1863 effectDesc->mDesc.cpuLoad = mTotalEffectsCpuLoad; 1864 } 1865 mTotalEffectsCpuLoad -= effectDesc->mDesc.cpuLoad; 1866 ALOGV("setEffectEnabled(false) total CPU %d", mTotalEffectsCpuLoad); 1867 } 1868 effectDesc->mEnabled = enabled; 1869 return NO_ERROR; 1870} 1871 1872bool AudioPolicyManager::isNonOffloadableEffectEnabled() 1873{ 1874 for (size_t i = 0; i < mEffects.size(); i++) { 1875 sp<EffectDescriptor> effectDesc = mEffects.valueAt(i); 1876 if (effectDesc->mEnabled && (effectDesc->mStrategy == STRATEGY_MEDIA) && 1877 ((effectDesc->mDesc.flags & EFFECT_FLAG_OFFLOAD_SUPPORTED) == 0)) { 1878 ALOGV("isNonOffloadableEffectEnabled() non offloadable effect %s enabled on session %d", 1879 effectDesc->mDesc.name, effectDesc->mSession); 1880 return true; 1881 } 1882 } 1883 return false; 1884} 1885 1886bool AudioPolicyManager::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const 1887{ 1888 nsecs_t sysTime = systemTime(); 1889 for (size_t i = 0; i < mOutputs.size(); i++) { 1890 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 1891 if (outputDesc->isStreamActive(stream, inPastMs, sysTime)) { 1892 return true; 1893 } 1894 } 1895 return false; 1896} 1897 1898bool AudioPolicyManager::isStreamActiveRemotely(audio_stream_type_t stream, 1899 uint32_t inPastMs) const 1900{ 1901 nsecs_t sysTime = systemTime(); 1902 for (size_t i = 0; i < mOutputs.size(); i++) { 1903 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 1904 if (((outputDesc->device() & APM_AUDIO_OUT_DEVICE_REMOTE_ALL) != 0) && 1905 outputDesc->isStreamActive(stream, inPastMs, sysTime)) { 1906 return true; 1907 } 1908 } 1909 return false; 1910} 1911 1912bool AudioPolicyManager::isSourceActive(audio_source_t source) const 1913{ 1914 for (size_t i = 0; i < mInputs.size(); i++) { 1915 const sp<AudioInputDescriptor> inputDescriptor = mInputs.valueAt(i); 1916 if ((inputDescriptor->mInputSource == (int)source || 1917 (source == AUDIO_SOURCE_VOICE_RECOGNITION && 1918 inputDescriptor->mInputSource == AUDIO_SOURCE_HOTWORD)) 1919 && (inputDescriptor->mRefCount > 0)) { 1920 return true; 1921 } 1922 } 1923 return false; 1924} 1925 1926 1927status_t AudioPolicyManager::dump(int fd) 1928{ 1929 const size_t SIZE = 256; 1930 char buffer[SIZE]; 1931 String8 result; 1932 1933 snprintf(buffer, SIZE, "\nAudioPolicyManager Dump: %p\n", this); 1934 result.append(buffer); 1935 1936 snprintf(buffer, SIZE, " Primary Output: %d\n", mPrimaryOutput); 1937 result.append(buffer); 1938 snprintf(buffer, SIZE, " Phone state: %d\n", mPhoneState); 1939 result.append(buffer); 1940 snprintf(buffer, SIZE, " Force use for communications %d\n", 1941 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]); 1942 result.append(buffer); 1943 snprintf(buffer, SIZE, " Force use for media %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA]); 1944 result.append(buffer); 1945 snprintf(buffer, SIZE, " Force use for record %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD]); 1946 result.append(buffer); 1947 snprintf(buffer, SIZE, " Force use for dock %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK]); 1948 result.append(buffer); 1949 snprintf(buffer, SIZE, " Force use for system %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM]); 1950 result.append(buffer); 1951 snprintf(buffer, SIZE, " Force use for hdmi system audio %d\n", 1952 mForceUse[AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO]); 1953 result.append(buffer); 1954 1955 snprintf(buffer, SIZE, " Available output devices:\n"); 1956 result.append(buffer); 1957 write(fd, result.string(), result.size()); 1958 for (size_t i = 0; i < mAvailableOutputDevices.size(); i++) { 1959 mAvailableOutputDevices[i]->dump(fd, 2, i); 1960 } 1961 snprintf(buffer, SIZE, "\n Available input devices:\n"); 1962 write(fd, buffer, strlen(buffer)); 1963 for (size_t i = 0; i < mAvailableInputDevices.size(); i++) { 1964 mAvailableInputDevices[i]->dump(fd, 2, i); 1965 } 1966 1967 snprintf(buffer, SIZE, "\nHW Modules dump:\n"); 1968 write(fd, buffer, strlen(buffer)); 1969 for (size_t i = 0; i < mHwModules.size(); i++) { 1970 snprintf(buffer, SIZE, "- HW Module %zu:\n", i + 1); 1971 write(fd, buffer, strlen(buffer)); 1972 mHwModules[i]->dump(fd); 1973 } 1974 1975 snprintf(buffer, SIZE, "\nOutputs dump:\n"); 1976 write(fd, buffer, strlen(buffer)); 1977 for (size_t i = 0; i < mOutputs.size(); i++) { 1978 snprintf(buffer, SIZE, "- Output %d dump:\n", mOutputs.keyAt(i)); 1979 write(fd, buffer, strlen(buffer)); 1980 mOutputs.valueAt(i)->dump(fd); 1981 } 1982 1983 snprintf(buffer, SIZE, "\nInputs dump:\n"); 1984 write(fd, buffer, strlen(buffer)); 1985 for (size_t i = 0; i < mInputs.size(); i++) { 1986 snprintf(buffer, SIZE, "- Input %d dump:\n", mInputs.keyAt(i)); 1987 write(fd, buffer, strlen(buffer)); 1988 mInputs.valueAt(i)->dump(fd); 1989 } 1990 1991 snprintf(buffer, SIZE, "\nStreams dump:\n"); 1992 write(fd, buffer, strlen(buffer)); 1993 snprintf(buffer, SIZE, 1994 " Stream Can be muted Index Min Index Max Index Cur [device : index]...\n"); 1995 write(fd, buffer, strlen(buffer)); 1996 for (size_t i = 0; i < AUDIO_STREAM_CNT; i++) { 1997 snprintf(buffer, SIZE, " %02zu ", i); 1998 write(fd, buffer, strlen(buffer)); 1999 mStreams[i].dump(fd); 2000 } 2001 2002 snprintf(buffer, SIZE, "\nTotal Effects CPU: %f MIPS, Total Effects memory: %d KB\n", 2003 (float)mTotalEffectsCpuLoad/10, mTotalEffectsMemory); 2004 write(fd, buffer, strlen(buffer)); 2005 2006 snprintf(buffer, SIZE, "Registered effects:\n"); 2007 write(fd, buffer, strlen(buffer)); 2008 for (size_t i = 0; i < mEffects.size(); i++) { 2009 snprintf(buffer, SIZE, "- Effect %d dump:\n", mEffects.keyAt(i)); 2010 write(fd, buffer, strlen(buffer)); 2011 mEffects.valueAt(i)->dump(fd); 2012 } 2013 2014 snprintf(buffer, SIZE, "\nAudio Patches:\n"); 2015 write(fd, buffer, strlen(buffer)); 2016 for (size_t i = 0; i < mAudioPatches.size(); i++) { 2017 mAudioPatches[i]->dump(fd, 2, i); 2018 } 2019 2020 return NO_ERROR; 2021} 2022 2023// This function checks for the parameters which can be offloaded. 2024// This can be enhanced depending on the capability of the DSP and policy 2025// of the system. 2026bool AudioPolicyManager::isOffloadSupported(const audio_offload_info_t& offloadInfo) 2027{ 2028 ALOGV("isOffloadSupported: SR=%u, CM=0x%x, Format=0x%x, StreamType=%d," 2029 " BitRate=%u, duration=%" PRId64 " us, has_video=%d", 2030 offloadInfo.sample_rate, offloadInfo.channel_mask, 2031 offloadInfo.format, 2032 offloadInfo.stream_type, offloadInfo.bit_rate, offloadInfo.duration_us, 2033 offloadInfo.has_video); 2034 2035 // Check if offload has been disabled 2036 char propValue[PROPERTY_VALUE_MAX]; 2037 if (property_get("audio.offload.disable", propValue, "0")) { 2038 if (atoi(propValue) != 0) { 2039 ALOGV("offload disabled by audio.offload.disable=%s", propValue ); 2040 return false; 2041 } 2042 } 2043 2044 // Check if stream type is music, then only allow offload as of now. 2045 if (offloadInfo.stream_type != AUDIO_STREAM_MUSIC) 2046 { 2047 ALOGV("isOffloadSupported: stream_type != MUSIC, returning false"); 2048 return false; 2049 } 2050 2051 //TODO: enable audio offloading with video when ready 2052 if (offloadInfo.has_video) 2053 { 2054 ALOGV("isOffloadSupported: has_video == true, returning false"); 2055 return false; 2056 } 2057 2058 //If duration is less than minimum value defined in property, return false 2059 if (property_get("audio.offload.min.duration.secs", propValue, NULL)) { 2060 if (offloadInfo.duration_us < (atoi(propValue) * 1000000 )) { 2061 ALOGV("Offload denied by duration < audio.offload.min.duration.secs(=%s)", propValue); 2062 return false; 2063 } 2064 } else if (offloadInfo.duration_us < OFFLOAD_DEFAULT_MIN_DURATION_SECS * 1000000) { 2065 ALOGV("Offload denied by duration < default min(=%u)", OFFLOAD_DEFAULT_MIN_DURATION_SECS); 2066 return false; 2067 } 2068 2069 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 2070 // creating an offloaded track and tearing it down immediately after start when audioflinger 2071 // detects there is an active non offloadable effect. 2072 // FIXME: We should check the audio session here but we do not have it in this context. 2073 // This may prevent offloading in rare situations where effects are left active by apps 2074 // in the background. 2075 if (isNonOffloadableEffectEnabled()) { 2076 return false; 2077 } 2078 2079 // See if there is a profile to support this. 2080 // AUDIO_DEVICE_NONE 2081 sp<IOProfile> profile = getProfileForDirectOutput(AUDIO_DEVICE_NONE /*ignore device */, 2082 offloadInfo.sample_rate, 2083 offloadInfo.format, 2084 offloadInfo.channel_mask, 2085 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD); 2086 ALOGV("isOffloadSupported() profile %sfound", profile != 0 ? "" : "NOT "); 2087 return (profile != 0); 2088} 2089 2090status_t AudioPolicyManager::listAudioPorts(audio_port_role_t role, 2091 audio_port_type_t type, 2092 unsigned int *num_ports, 2093 struct audio_port *ports, 2094 unsigned int *generation) 2095{ 2096 if (num_ports == NULL || (*num_ports != 0 && ports == NULL) || 2097 generation == NULL) { 2098 return BAD_VALUE; 2099 } 2100 ALOGV("listAudioPorts() role %d type %d num_ports %d ports %p", role, type, *num_ports, ports); 2101 if (ports == NULL) { 2102 *num_ports = 0; 2103 } 2104 2105 size_t portsWritten = 0; 2106 size_t portsMax = *num_ports; 2107 *num_ports = 0; 2108 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_DEVICE) { 2109 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 2110 for (size_t i = 0; 2111 i < mAvailableOutputDevices.size() && portsWritten < portsMax; i++) { 2112 mAvailableOutputDevices[i]->toAudioPort(&ports[portsWritten++]); 2113 } 2114 *num_ports += mAvailableOutputDevices.size(); 2115 } 2116 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 2117 for (size_t i = 0; 2118 i < mAvailableInputDevices.size() && portsWritten < portsMax; i++) { 2119 mAvailableInputDevices[i]->toAudioPort(&ports[portsWritten++]); 2120 } 2121 *num_ports += mAvailableInputDevices.size(); 2122 } 2123 } 2124 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_MIX) { 2125 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 2126 for (size_t i = 0; i < mInputs.size() && portsWritten < portsMax; i++) { 2127 mInputs[i]->toAudioPort(&ports[portsWritten++]); 2128 } 2129 *num_ports += mInputs.size(); 2130 } 2131 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 2132 size_t numOutputs = 0; 2133 for (size_t i = 0; i < mOutputs.size(); i++) { 2134 if (!mOutputs[i]->isDuplicated()) { 2135 numOutputs++; 2136 if (portsWritten < portsMax) { 2137 mOutputs[i]->toAudioPort(&ports[portsWritten++]); 2138 } 2139 } 2140 } 2141 *num_ports += numOutputs; 2142 } 2143 } 2144 *generation = curAudioPortGeneration(); 2145 ALOGV("listAudioPorts() got %zu ports needed %d", portsWritten, *num_ports); 2146 return NO_ERROR; 2147} 2148 2149status_t AudioPolicyManager::getAudioPort(struct audio_port *port __unused) 2150{ 2151 return NO_ERROR; 2152} 2153 2154sp<AudioPolicyManager::AudioOutputDescriptor> AudioPolicyManager::getOutputFromId( 2155 audio_port_handle_t id) const 2156{ 2157 sp<AudioOutputDescriptor> outputDesc = NULL; 2158 for (size_t i = 0; i < mOutputs.size(); i++) { 2159 outputDesc = mOutputs.valueAt(i); 2160 if (outputDesc->mId == id) { 2161 break; 2162 } 2163 } 2164 return outputDesc; 2165} 2166 2167sp<AudioPolicyManager::AudioInputDescriptor> AudioPolicyManager::getInputFromId( 2168 audio_port_handle_t id) const 2169{ 2170 sp<AudioInputDescriptor> inputDesc = NULL; 2171 for (size_t i = 0; i < mInputs.size(); i++) { 2172 inputDesc = mInputs.valueAt(i); 2173 if (inputDesc->mId == id) { 2174 break; 2175 } 2176 } 2177 return inputDesc; 2178} 2179 2180sp <AudioPolicyManager::HwModule> AudioPolicyManager::getModuleForDevice( 2181 audio_devices_t device) const 2182{ 2183 sp <HwModule> module; 2184 2185 for (size_t i = 0; i < mHwModules.size(); i++) { 2186 if (mHwModules[i]->mHandle == 0) { 2187 continue; 2188 } 2189 if (audio_is_output_device(device)) { 2190 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 2191 { 2192 if (mHwModules[i]->mOutputProfiles[j]->mSupportedDevices.types() & device) { 2193 return mHwModules[i]; 2194 } 2195 } 2196 } else { 2197 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) { 2198 if (mHwModules[i]->mInputProfiles[j]->mSupportedDevices.types() & 2199 device & ~AUDIO_DEVICE_BIT_IN) { 2200 return mHwModules[i]; 2201 } 2202 } 2203 } 2204 } 2205 return module; 2206} 2207 2208sp <AudioPolicyManager::HwModule> AudioPolicyManager::getModuleFromName(const char *name) const 2209{ 2210 sp <HwModule> module; 2211 2212 for (size_t i = 0; i < mHwModules.size(); i++) 2213 { 2214 if (strcmp(mHwModules[i]->mName, name) == 0) { 2215 return mHwModules[i]; 2216 } 2217 } 2218 return module; 2219} 2220 2221audio_devices_t AudioPolicyManager::availablePrimaryOutputDevices() 2222{ 2223 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 2224 audio_devices_t devices = outputDesc->mProfile->mSupportedDevices.types(); 2225 return devices & mAvailableOutputDevices.types(); 2226} 2227 2228audio_devices_t AudioPolicyManager::availablePrimaryInputDevices() 2229{ 2230 audio_module_handle_t primaryHandle = 2231 mOutputs.valueFor(mPrimaryOutput)->mProfile->mModule->mHandle; 2232 audio_devices_t devices = AUDIO_DEVICE_NONE; 2233 for (size_t i = 0; i < mAvailableInputDevices.size(); i++) { 2234 if (mAvailableInputDevices[i]->mModule->mHandle == primaryHandle) { 2235 devices |= mAvailableInputDevices[i]->mDeviceType; 2236 } 2237 } 2238 return devices; 2239} 2240 2241status_t AudioPolicyManager::createAudioPatch(const struct audio_patch *patch, 2242 audio_patch_handle_t *handle, 2243 uid_t uid) 2244{ 2245 ALOGV("createAudioPatch()"); 2246 2247 if (handle == NULL || patch == NULL) { 2248 return BAD_VALUE; 2249 } 2250 ALOGV("createAudioPatch() num sources %d num sinks %d", patch->num_sources, patch->num_sinks); 2251 2252 if (patch->num_sources == 0 || patch->num_sources > AUDIO_PATCH_PORTS_MAX || 2253 patch->num_sinks == 0 || patch->num_sinks > AUDIO_PATCH_PORTS_MAX) { 2254 return BAD_VALUE; 2255 } 2256 // only one source per audio patch supported for now 2257 if (patch->num_sources > 1) { 2258 return INVALID_OPERATION; 2259 } 2260 2261 if (patch->sources[0].role != AUDIO_PORT_ROLE_SOURCE) { 2262 return INVALID_OPERATION; 2263 } 2264 for (size_t i = 0; i < patch->num_sinks; i++) { 2265 if (patch->sinks[i].role != AUDIO_PORT_ROLE_SINK) { 2266 return INVALID_OPERATION; 2267 } 2268 } 2269 2270 sp<AudioPatch> patchDesc; 2271 ssize_t index = mAudioPatches.indexOfKey(*handle); 2272 2273 ALOGV("createAudioPatch source id %d role %d type %d", patch->sources[0].id, 2274 patch->sources[0].role, 2275 patch->sources[0].type); 2276#if LOG_NDEBUG == 0 2277 for (size_t i = 0; i < patch->num_sinks; i++) { 2278 ALOGV("createAudioPatch sink %d: id %d role %d type %d", i, patch->sinks[i].id, 2279 patch->sinks[i].role, 2280 patch->sinks[i].type); 2281 } 2282#endif 2283 2284 if (index >= 0) { 2285 patchDesc = mAudioPatches.valueAt(index); 2286 ALOGV("createAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 2287 mUidCached, patchDesc->mUid, uid); 2288 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 2289 return INVALID_OPERATION; 2290 } 2291 } else { 2292 *handle = 0; 2293 } 2294 2295 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 2296 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(patch->sources[0].id); 2297 if (outputDesc == NULL) { 2298 ALOGV("createAudioPatch() output not found for id %d", patch->sources[0].id); 2299 return BAD_VALUE; 2300 } 2301 ALOG_ASSERT(!outputDesc->isDuplicated(),"duplicated output %d in source in ports", 2302 outputDesc->mIoHandle); 2303 if (patchDesc != 0) { 2304 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 2305 ALOGV("createAudioPatch() source id differs for patch current id %d new id %d", 2306 patchDesc->mPatch.sources[0].id, patch->sources[0].id); 2307 return BAD_VALUE; 2308 } 2309 } 2310 DeviceVector devices; 2311 for (size_t i = 0; i < patch->num_sinks; i++) { 2312 // Only support mix to devices connection 2313 // TODO add support for mix to mix connection 2314 if (patch->sinks[i].type != AUDIO_PORT_TYPE_DEVICE) { 2315 ALOGV("createAudioPatch() source mix but sink is not a device"); 2316 return INVALID_OPERATION; 2317 } 2318 sp<DeviceDescriptor> devDesc = 2319 mAvailableOutputDevices.getDeviceFromId(patch->sinks[i].id); 2320 if (devDesc == 0) { 2321 ALOGV("createAudioPatch() out device not found for id %d", patch->sinks[i].id); 2322 return BAD_VALUE; 2323 } 2324 2325 if (!outputDesc->mProfile->isCompatibleProfile(devDesc->mDeviceType, 2326 patch->sources[0].sample_rate, 2327 NULL, // updatedSamplingRate 2328 patch->sources[0].format, 2329 patch->sources[0].channel_mask, 2330 AUDIO_OUTPUT_FLAG_NONE /*FIXME*/)) { 2331 ALOGV("createAudioPatch() profile not supported for device %08x", 2332 devDesc->mDeviceType); 2333 return INVALID_OPERATION; 2334 } 2335 devices.add(devDesc); 2336 } 2337 if (devices.size() == 0) { 2338 return INVALID_OPERATION; 2339 } 2340 2341 // TODO: reconfigure output format and channels here 2342 ALOGV("createAudioPatch() setting device %08x on output %d", 2343 devices.types(), outputDesc->mIoHandle); 2344 setOutputDevice(outputDesc->mIoHandle, devices.types(), true, 0, handle); 2345 index = mAudioPatches.indexOfKey(*handle); 2346 if (index >= 0) { 2347 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 2348 ALOGW("createAudioPatch() setOutputDevice() did not reuse the patch provided"); 2349 } 2350 patchDesc = mAudioPatches.valueAt(index); 2351 patchDesc->mUid = uid; 2352 ALOGV("createAudioPatch() success"); 2353 } else { 2354 ALOGW("createAudioPatch() setOutputDevice() failed to create a patch"); 2355 return INVALID_OPERATION; 2356 } 2357 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 2358 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 2359 // input device to input mix connection 2360 // only one sink supported when connecting an input device to a mix 2361 if (patch->num_sinks > 1) { 2362 return INVALID_OPERATION; 2363 } 2364 sp<AudioInputDescriptor> inputDesc = getInputFromId(patch->sinks[0].id); 2365 if (inputDesc == NULL) { 2366 return BAD_VALUE; 2367 } 2368 if (patchDesc != 0) { 2369 if (patchDesc->mPatch.sinks[0].id != patch->sinks[0].id) { 2370 return BAD_VALUE; 2371 } 2372 } 2373 sp<DeviceDescriptor> devDesc = 2374 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 2375 if (devDesc == 0) { 2376 return BAD_VALUE; 2377 } 2378 2379 if (!inputDesc->mProfile->isCompatibleProfile(devDesc->mDeviceType, 2380 patch->sinks[0].sample_rate, 2381 NULL, /*updatedSampleRate*/ 2382 patch->sinks[0].format, 2383 patch->sinks[0].channel_mask, 2384 // FIXME for the parameter type, 2385 // and the NONE 2386 (audio_output_flags_t) 2387 AUDIO_INPUT_FLAG_NONE)) { 2388 return INVALID_OPERATION; 2389 } 2390 // TODO: reconfigure output format and channels here 2391 ALOGV("createAudioPatch() setting device %08x on output %d", 2392 devDesc->mDeviceType, inputDesc->mIoHandle); 2393 setInputDevice(inputDesc->mIoHandle, devDesc->mDeviceType, true, handle); 2394 index = mAudioPatches.indexOfKey(*handle); 2395 if (index >= 0) { 2396 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 2397 ALOGW("createAudioPatch() setInputDevice() did not reuse the patch provided"); 2398 } 2399 patchDesc = mAudioPatches.valueAt(index); 2400 patchDesc->mUid = uid; 2401 ALOGV("createAudioPatch() success"); 2402 } else { 2403 ALOGW("createAudioPatch() setInputDevice() failed to create a patch"); 2404 return INVALID_OPERATION; 2405 } 2406 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2407 // device to device connection 2408 if (patchDesc != 0) { 2409 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 2410 return BAD_VALUE; 2411 } 2412 } 2413 sp<DeviceDescriptor> srcDeviceDesc = 2414 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 2415 if (srcDeviceDesc == 0) { 2416 return BAD_VALUE; 2417 } 2418 2419 //update source and sink with our own data as the data passed in the patch may 2420 // be incomplete. 2421 struct audio_patch newPatch = *patch; 2422 srcDeviceDesc->toAudioPortConfig(&newPatch.sources[0], &patch->sources[0]); 2423 2424 for (size_t i = 0; i < patch->num_sinks; i++) { 2425 if (patch->sinks[i].type != AUDIO_PORT_TYPE_DEVICE) { 2426 ALOGV("createAudioPatch() source device but one sink is not a device"); 2427 return INVALID_OPERATION; 2428 } 2429 2430 sp<DeviceDescriptor> sinkDeviceDesc = 2431 mAvailableOutputDevices.getDeviceFromId(patch->sinks[i].id); 2432 if (sinkDeviceDesc == 0) { 2433 return BAD_VALUE; 2434 } 2435 sinkDeviceDesc->toAudioPortConfig(&newPatch.sinks[i], &patch->sinks[i]); 2436 2437 if (srcDeviceDesc->mModule != sinkDeviceDesc->mModule) { 2438 // only one sink supported when connected devices across HW modules 2439 if (patch->num_sinks > 1) { 2440 return INVALID_OPERATION; 2441 } 2442 SortedVector<audio_io_handle_t> outputs = 2443 getOutputsForDevice(sinkDeviceDesc->mDeviceType, 2444 mOutputs); 2445 // if the sink device is reachable via an opened output stream, request to go via 2446 // this output stream by adding a second source to the patch description 2447 audio_io_handle_t output = selectOutput(outputs, 2448 AUDIO_OUTPUT_FLAG_NONE, 2449 AUDIO_FORMAT_INVALID); 2450 if (output != AUDIO_IO_HANDLE_NONE) { 2451 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 2452 if (outputDesc->isDuplicated()) { 2453 return INVALID_OPERATION; 2454 } 2455 outputDesc->toAudioPortConfig(&newPatch.sources[1], &patch->sources[0]); 2456 newPatch.num_sources = 2; 2457 } 2458 } 2459 } 2460 // TODO: check from routing capabilities in config file and other conflicting patches 2461 2462 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 2463 if (index >= 0) { 2464 afPatchHandle = patchDesc->mAfPatchHandle; 2465 } 2466 2467 status_t status = mpClientInterface->createAudioPatch(&newPatch, 2468 &afPatchHandle, 2469 0); 2470 ALOGV("createAudioPatch() patch panel returned %d patchHandle %d", 2471 status, afPatchHandle); 2472 if (status == NO_ERROR) { 2473 if (index < 0) { 2474 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 2475 &newPatch, uid); 2476 addAudioPatch(patchDesc->mHandle, patchDesc); 2477 } else { 2478 patchDesc->mPatch = newPatch; 2479 } 2480 patchDesc->mAfPatchHandle = afPatchHandle; 2481 *handle = patchDesc->mHandle; 2482 nextAudioPortGeneration(); 2483 mpClientInterface->onAudioPatchListUpdate(); 2484 } else { 2485 ALOGW("createAudioPatch() patch panel could not connect device patch, error %d", 2486 status); 2487 return INVALID_OPERATION; 2488 } 2489 } else { 2490 return BAD_VALUE; 2491 } 2492 } else { 2493 return BAD_VALUE; 2494 } 2495 return NO_ERROR; 2496} 2497 2498status_t AudioPolicyManager::releaseAudioPatch(audio_patch_handle_t handle, 2499 uid_t uid) 2500{ 2501 ALOGV("releaseAudioPatch() patch %d", handle); 2502 2503 ssize_t index = mAudioPatches.indexOfKey(handle); 2504 2505 if (index < 0) { 2506 return BAD_VALUE; 2507 } 2508 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 2509 ALOGV("releaseAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 2510 mUidCached, patchDesc->mUid, uid); 2511 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 2512 return INVALID_OPERATION; 2513 } 2514 2515 struct audio_patch *patch = &patchDesc->mPatch; 2516 patchDesc->mUid = mUidCached; 2517 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 2518 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(patch->sources[0].id); 2519 if (outputDesc == NULL) { 2520 ALOGV("releaseAudioPatch() output not found for id %d", patch->sources[0].id); 2521 return BAD_VALUE; 2522 } 2523 2524 setOutputDevice(outputDesc->mIoHandle, 2525 getNewOutputDevice(outputDesc->mIoHandle, true /*fromCache*/), 2526 true, 2527 0, 2528 NULL); 2529 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 2530 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 2531 sp<AudioInputDescriptor> inputDesc = getInputFromId(patch->sinks[0].id); 2532 if (inputDesc == NULL) { 2533 ALOGV("releaseAudioPatch() input not found for id %d", patch->sinks[0].id); 2534 return BAD_VALUE; 2535 } 2536 setInputDevice(inputDesc->mIoHandle, 2537 getNewInputDevice(inputDesc->mIoHandle), 2538 true, 2539 NULL); 2540 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2541 audio_patch_handle_t afPatchHandle = patchDesc->mAfPatchHandle; 2542 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 2543 ALOGV("releaseAudioPatch() patch panel returned %d patchHandle %d", 2544 status, patchDesc->mAfPatchHandle); 2545 removeAudioPatch(patchDesc->mHandle); 2546 nextAudioPortGeneration(); 2547 mpClientInterface->onAudioPatchListUpdate(); 2548 } else { 2549 return BAD_VALUE; 2550 } 2551 } else { 2552 return BAD_VALUE; 2553 } 2554 return NO_ERROR; 2555} 2556 2557status_t AudioPolicyManager::listAudioPatches(unsigned int *num_patches, 2558 struct audio_patch *patches, 2559 unsigned int *generation) 2560{ 2561 if (num_patches == NULL || (*num_patches != 0 && patches == NULL) || 2562 generation == NULL) { 2563 return BAD_VALUE; 2564 } 2565 ALOGV("listAudioPatches() num_patches %d patches %p available patches %zu", 2566 *num_patches, patches, mAudioPatches.size()); 2567 if (patches == NULL) { 2568 *num_patches = 0; 2569 } 2570 2571 size_t patchesWritten = 0; 2572 size_t patchesMax = *num_patches; 2573 for (size_t i = 0; 2574 i < mAudioPatches.size() && patchesWritten < patchesMax; i++) { 2575 patches[patchesWritten] = mAudioPatches[i]->mPatch; 2576 patches[patchesWritten++].id = mAudioPatches[i]->mHandle; 2577 ALOGV("listAudioPatches() patch %zu num_sources %d num_sinks %d", 2578 i, mAudioPatches[i]->mPatch.num_sources, mAudioPatches[i]->mPatch.num_sinks); 2579 } 2580 *num_patches = mAudioPatches.size(); 2581 2582 *generation = curAudioPortGeneration(); 2583 ALOGV("listAudioPatches() got %zu patches needed %d", patchesWritten, *num_patches); 2584 return NO_ERROR; 2585} 2586 2587status_t AudioPolicyManager::setAudioPortConfig(const struct audio_port_config *config) 2588{ 2589 ALOGV("setAudioPortConfig()"); 2590 2591 if (config == NULL) { 2592 return BAD_VALUE; 2593 } 2594 ALOGV("setAudioPortConfig() on port handle %d", config->id); 2595 // Only support gain configuration for now 2596 if (config->config_mask != AUDIO_PORT_CONFIG_GAIN) { 2597 return INVALID_OPERATION; 2598 } 2599 2600 sp<AudioPortConfig> audioPortConfig; 2601 if (config->type == AUDIO_PORT_TYPE_MIX) { 2602 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2603 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(config->id); 2604 if (outputDesc == NULL) { 2605 return BAD_VALUE; 2606 } 2607 ALOG_ASSERT(!outputDesc->isDuplicated(), 2608 "setAudioPortConfig() called on duplicated output %d", 2609 outputDesc->mIoHandle); 2610 audioPortConfig = outputDesc; 2611 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2612 sp<AudioInputDescriptor> inputDesc = getInputFromId(config->id); 2613 if (inputDesc == NULL) { 2614 return BAD_VALUE; 2615 } 2616 audioPortConfig = inputDesc; 2617 } else { 2618 return BAD_VALUE; 2619 } 2620 } else if (config->type == AUDIO_PORT_TYPE_DEVICE) { 2621 sp<DeviceDescriptor> deviceDesc; 2622 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2623 deviceDesc = mAvailableInputDevices.getDeviceFromId(config->id); 2624 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2625 deviceDesc = mAvailableOutputDevices.getDeviceFromId(config->id); 2626 } else { 2627 return BAD_VALUE; 2628 } 2629 if (deviceDesc == NULL) { 2630 return BAD_VALUE; 2631 } 2632 audioPortConfig = deviceDesc; 2633 } else { 2634 return BAD_VALUE; 2635 } 2636 2637 struct audio_port_config backupConfig; 2638 status_t status = audioPortConfig->applyAudioPortConfig(config, &backupConfig); 2639 if (status == NO_ERROR) { 2640 struct audio_port_config newConfig; 2641 audioPortConfig->toAudioPortConfig(&newConfig, config); 2642 status = mpClientInterface->setAudioPortConfig(&newConfig, 0); 2643 } 2644 if (status != NO_ERROR) { 2645 audioPortConfig->applyAudioPortConfig(&backupConfig); 2646 } 2647 2648 return status; 2649} 2650 2651void AudioPolicyManager::clearAudioPatches(uid_t uid) 2652{ 2653 for (ssize_t i = 0; i < (ssize_t)mAudioPatches.size(); i++) { 2654 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(i); 2655 if (patchDesc->mUid == uid) { 2656 // releaseAudioPatch() removes the patch from mAudioPatches 2657 if (releaseAudioPatch(mAudioPatches.keyAt(i), uid) == NO_ERROR) { 2658 i--; 2659 } 2660 } 2661 } 2662} 2663 2664status_t AudioPolicyManager::acquireSoundTriggerSession(audio_session_t *session, 2665 audio_io_handle_t *ioHandle, 2666 audio_devices_t *device) 2667{ 2668 *session = (audio_session_t)mpClientInterface->newAudioUniqueId(); 2669 *ioHandle = (audio_io_handle_t)mpClientInterface->newAudioUniqueId(); 2670 *device = getDeviceForInputSource(AUDIO_SOURCE_HOTWORD); 2671 2672 mSoundTriggerSessions.add(*session, *ioHandle); 2673 2674 return NO_ERROR; 2675} 2676 2677status_t AudioPolicyManager::releaseSoundTriggerSession(audio_session_t session) 2678{ 2679 ssize_t index = mSoundTriggerSessions.indexOfKey(session); 2680 if (index < 0) { 2681 ALOGW("acquireSoundTriggerSession() session %d not registered", session); 2682 return BAD_VALUE; 2683 } 2684 2685 mSoundTriggerSessions.removeItem(session); 2686 return NO_ERROR; 2687} 2688 2689status_t AudioPolicyManager::addAudioPatch(audio_patch_handle_t handle, 2690 const sp<AudioPatch>& patch) 2691{ 2692 ssize_t index = mAudioPatches.indexOfKey(handle); 2693 2694 if (index >= 0) { 2695 ALOGW("addAudioPatch() patch %d already in", handle); 2696 return ALREADY_EXISTS; 2697 } 2698 mAudioPatches.add(handle, patch); 2699 ALOGV("addAudioPatch() handle %d af handle %d num_sources %d num_sinks %d source handle %d" 2700 "sink handle %d", 2701 handle, patch->mAfPatchHandle, patch->mPatch.num_sources, patch->mPatch.num_sinks, 2702 patch->mPatch.sources[0].id, patch->mPatch.sinks[0].id); 2703 return NO_ERROR; 2704} 2705 2706status_t AudioPolicyManager::removeAudioPatch(audio_patch_handle_t handle) 2707{ 2708 ssize_t index = mAudioPatches.indexOfKey(handle); 2709 2710 if (index < 0) { 2711 ALOGW("removeAudioPatch() patch %d not in", handle); 2712 return ALREADY_EXISTS; 2713 } 2714 ALOGV("removeAudioPatch() handle %d af handle %d", handle, 2715 mAudioPatches.valueAt(index)->mAfPatchHandle); 2716 mAudioPatches.removeItemsAt(index); 2717 return NO_ERROR; 2718} 2719 2720// ---------------------------------------------------------------------------- 2721// AudioPolicyManager 2722// ---------------------------------------------------------------------------- 2723 2724uint32_t AudioPolicyManager::nextUniqueId() 2725{ 2726 return android_atomic_inc(&mNextUniqueId); 2727} 2728 2729uint32_t AudioPolicyManager::nextAudioPortGeneration() 2730{ 2731 return android_atomic_inc(&mAudioPortGeneration); 2732} 2733 2734AudioPolicyManager::AudioPolicyManager(AudioPolicyClientInterface *clientInterface) 2735 : 2736#ifdef AUDIO_POLICY_TEST 2737 Thread(false), 2738#endif //AUDIO_POLICY_TEST 2739 mPrimaryOutput((audio_io_handle_t)0), 2740 mPhoneState(AUDIO_MODE_NORMAL), 2741 mLimitRingtoneVolume(false), mLastVoiceVolume(-1.0f), 2742 mTotalEffectsCpuLoad(0), mTotalEffectsMemory(0), 2743 mA2dpSuspended(false), 2744 mSpeakerDrcEnabled(false), mNextUniqueId(1), 2745 mAudioPortGeneration(1), 2746 mBeaconMuteRefCount(0), 2747 mBeaconPlayingRefCount(0), 2748 mBeaconMuted(false) 2749{ 2750 mUidCached = getuid(); 2751 mpClientInterface = clientInterface; 2752 2753 for (int i = 0; i < AUDIO_POLICY_FORCE_USE_CNT; i++) { 2754 mForceUse[i] = AUDIO_POLICY_FORCE_NONE; 2755 } 2756 2757 mDefaultOutputDevice = new DeviceDescriptor(String8(""), AUDIO_DEVICE_OUT_SPEAKER); 2758 if (loadAudioPolicyConfig(AUDIO_POLICY_VENDOR_CONFIG_FILE) != NO_ERROR) { 2759 if (loadAudioPolicyConfig(AUDIO_POLICY_CONFIG_FILE) != NO_ERROR) { 2760 ALOGE("could not load audio policy configuration file, setting defaults"); 2761 defaultAudioPolicyConfig(); 2762 } 2763 } 2764 // mAvailableOutputDevices and mAvailableInputDevices now contain all attached devices 2765 2766 // must be done after reading the policy 2767 initializeVolumeCurves(); 2768 2769 // open all output streams needed to access attached devices 2770 audio_devices_t outputDeviceTypes = mAvailableOutputDevices.types(); 2771 audio_devices_t inputDeviceTypes = mAvailableInputDevices.types() & ~AUDIO_DEVICE_BIT_IN; 2772 for (size_t i = 0; i < mHwModules.size(); i++) { 2773 mHwModules[i]->mHandle = mpClientInterface->loadHwModule(mHwModules[i]->mName); 2774 if (mHwModules[i]->mHandle == 0) { 2775 ALOGW("could not open HW module %s", mHwModules[i]->mName); 2776 continue; 2777 } 2778 // open all output streams needed to access attached devices 2779 // except for direct output streams that are only opened when they are actually 2780 // required by an app. 2781 // This also validates mAvailableOutputDevices list 2782 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 2783 { 2784 const sp<IOProfile> outProfile = mHwModules[i]->mOutputProfiles[j]; 2785 2786 if (outProfile->mSupportedDevices.isEmpty()) { 2787 ALOGW("Output profile contains no device on module %s", mHwModules[i]->mName); 2788 continue; 2789 } 2790 2791 if ((outProfile->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) { 2792 continue; 2793 } 2794 audio_devices_t profileType = outProfile->mSupportedDevices.types(); 2795 if ((profileType & mDefaultOutputDevice->mDeviceType) != AUDIO_DEVICE_NONE) { 2796 profileType = mDefaultOutputDevice->mDeviceType; 2797 } else { 2798 // chose first device present in mSupportedDevices also part of 2799 // outputDeviceTypes 2800 for (size_t k = 0; k < outProfile->mSupportedDevices.size(); k++) { 2801 profileType = outProfile->mSupportedDevices[k]->mDeviceType; 2802 if ((profileType & outputDeviceTypes) != 0) { 2803 break; 2804 } 2805 } 2806 } 2807 if ((profileType & outputDeviceTypes) == 0) { 2808 continue; 2809 } 2810 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(outProfile); 2811 2812 outputDesc->mDevice = profileType; 2813 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 2814 config.sample_rate = outputDesc->mSamplingRate; 2815 config.channel_mask = outputDesc->mChannelMask; 2816 config.format = outputDesc->mFormat; 2817 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 2818 status_t status = mpClientInterface->openOutput(outProfile->mModule->mHandle, 2819 &output, 2820 &config, 2821 &outputDesc->mDevice, 2822 String8(""), 2823 &outputDesc->mLatency, 2824 outputDesc->mFlags); 2825 2826 if (status != NO_ERROR) { 2827 ALOGW("Cannot open output stream for device %08x on hw module %s", 2828 outputDesc->mDevice, 2829 mHwModules[i]->mName); 2830 } else { 2831 outputDesc->mSamplingRate = config.sample_rate; 2832 outputDesc->mChannelMask = config.channel_mask; 2833 outputDesc->mFormat = config.format; 2834 2835 for (size_t k = 0; k < outProfile->mSupportedDevices.size(); k++) { 2836 audio_devices_t type = outProfile->mSupportedDevices[k]->mDeviceType; 2837 ssize_t index = 2838 mAvailableOutputDevices.indexOf(outProfile->mSupportedDevices[k]); 2839 // give a valid ID to an attached device once confirmed it is reachable 2840 if ((index >= 0) && (mAvailableOutputDevices[index]->mId == 0)) { 2841 mAvailableOutputDevices[index]->mId = nextUniqueId(); 2842 mAvailableOutputDevices[index]->mModule = mHwModules[i]; 2843 } 2844 } 2845 if (mPrimaryOutput == 0 && 2846 outProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 2847 mPrimaryOutput = output; 2848 } 2849 addOutput(output, outputDesc); 2850 setOutputDevice(output, 2851 outputDesc->mDevice, 2852 true); 2853 } 2854 } 2855 // open input streams needed to access attached devices to validate 2856 // mAvailableInputDevices list 2857 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 2858 { 2859 const sp<IOProfile> inProfile = mHwModules[i]->mInputProfiles[j]; 2860 2861 if (inProfile->mSupportedDevices.isEmpty()) { 2862 ALOGW("Input profile contains no device on module %s", mHwModules[i]->mName); 2863 continue; 2864 } 2865 // chose first device present in mSupportedDevices also part of 2866 // inputDeviceTypes 2867 audio_devices_t profileType = AUDIO_DEVICE_NONE; 2868 for (size_t k = 0; k < inProfile->mSupportedDevices.size(); k++) { 2869 profileType = inProfile->mSupportedDevices[k]->mDeviceType; 2870 if (profileType & inputDeviceTypes) { 2871 break; 2872 } 2873 } 2874 if ((profileType & inputDeviceTypes) == 0) { 2875 continue; 2876 } 2877 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(inProfile); 2878 2879 inputDesc->mInputSource = AUDIO_SOURCE_MIC; 2880 inputDesc->mDevice = profileType; 2881 2882 // find the address 2883 DeviceVector inputDevices = mAvailableInputDevices.getDevicesFromType(profileType); 2884 // the inputs vector must be of size 1, but we don't want to crash here 2885 String8 address = inputDevices.size() > 0 ? inputDevices.itemAt(0)->mAddress 2886 : String8(""); 2887 ALOGV(" for input device 0x%x using address %s", profileType, address.string()); 2888 ALOGE_IF(inputDevices.size() == 0, "Input device list is empty!"); 2889 2890 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 2891 config.sample_rate = inputDesc->mSamplingRate; 2892 config.channel_mask = inputDesc->mChannelMask; 2893 config.format = inputDesc->mFormat; 2894 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 2895 status_t status = mpClientInterface->openInput(inProfile->mModule->mHandle, 2896 &input, 2897 &config, 2898 &inputDesc->mDevice, 2899 address, 2900 AUDIO_SOURCE_MIC, 2901 AUDIO_INPUT_FLAG_NONE); 2902 2903 if (status == NO_ERROR) { 2904 for (size_t k = 0; k < inProfile->mSupportedDevices.size(); k++) { 2905 audio_devices_t type = inProfile->mSupportedDevices[k]->mDeviceType; 2906 ssize_t index = 2907 mAvailableInputDevices.indexOf(inProfile->mSupportedDevices[k]); 2908 // give a valid ID to an attached device once confirmed it is reachable 2909 if ((index >= 0) && (mAvailableInputDevices[index]->mId == 0)) { 2910 mAvailableInputDevices[index]->mId = nextUniqueId(); 2911 mAvailableInputDevices[index]->mModule = mHwModules[i]; 2912 } 2913 } 2914 mpClientInterface->closeInput(input); 2915 } else { 2916 ALOGW("Cannot open input stream for device %08x on hw module %s", 2917 inputDesc->mDevice, 2918 mHwModules[i]->mName); 2919 } 2920 } 2921 } 2922 // make sure all attached devices have been allocated a unique ID 2923 for (size_t i = 0; i < mAvailableOutputDevices.size();) { 2924 if (mAvailableOutputDevices[i]->mId == 0) { 2925 ALOGW("Input device %08x unreachable", mAvailableOutputDevices[i]->mDeviceType); 2926 mAvailableOutputDevices.remove(mAvailableOutputDevices[i]); 2927 continue; 2928 } 2929 i++; 2930 } 2931 for (size_t i = 0; i < mAvailableInputDevices.size();) { 2932 if (mAvailableInputDevices[i]->mId == 0) { 2933 ALOGW("Input device %08x unreachable", mAvailableInputDevices[i]->mDeviceType); 2934 mAvailableInputDevices.remove(mAvailableInputDevices[i]); 2935 continue; 2936 } 2937 i++; 2938 } 2939 // make sure default device is reachable 2940 if (mAvailableOutputDevices.indexOf(mDefaultOutputDevice) < 0) { 2941 ALOGE("Default device %08x is unreachable", mDefaultOutputDevice->mDeviceType); 2942 } 2943 2944 ALOGE_IF((mPrimaryOutput == 0), "Failed to open primary output"); 2945 2946 updateDevicesAndOutputs(); 2947 2948#ifdef AUDIO_POLICY_TEST 2949 if (mPrimaryOutput != 0) { 2950 AudioParameter outputCmd = AudioParameter(); 2951 outputCmd.addInt(String8("set_id"), 0); 2952 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 2953 2954 mTestDevice = AUDIO_DEVICE_OUT_SPEAKER; 2955 mTestSamplingRate = 44100; 2956 mTestFormat = AUDIO_FORMAT_PCM_16_BIT; 2957 mTestChannels = AUDIO_CHANNEL_OUT_STEREO; 2958 mTestLatencyMs = 0; 2959 mCurOutput = 0; 2960 mDirectOutput = false; 2961 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 2962 mTestOutputs[i] = 0; 2963 } 2964 2965 const size_t SIZE = 256; 2966 char buffer[SIZE]; 2967 snprintf(buffer, SIZE, "AudioPolicyManagerTest"); 2968 run(buffer, ANDROID_PRIORITY_AUDIO); 2969 } 2970#endif //AUDIO_POLICY_TEST 2971} 2972 2973AudioPolicyManager::~AudioPolicyManager() 2974{ 2975#ifdef AUDIO_POLICY_TEST 2976 exit(); 2977#endif //AUDIO_POLICY_TEST 2978 for (size_t i = 0; i < mOutputs.size(); i++) { 2979 mpClientInterface->closeOutput(mOutputs.keyAt(i)); 2980 } 2981 for (size_t i = 0; i < mInputs.size(); i++) { 2982 mpClientInterface->closeInput(mInputs.keyAt(i)); 2983 } 2984 mAvailableOutputDevices.clear(); 2985 mAvailableInputDevices.clear(); 2986 mOutputs.clear(); 2987 mInputs.clear(); 2988 mHwModules.clear(); 2989} 2990 2991status_t AudioPolicyManager::initCheck() 2992{ 2993 return (mPrimaryOutput == 0) ? NO_INIT : NO_ERROR; 2994} 2995 2996#ifdef AUDIO_POLICY_TEST 2997bool AudioPolicyManager::threadLoop() 2998{ 2999 ALOGV("entering threadLoop()"); 3000 while (!exitPending()) 3001 { 3002 String8 command; 3003 int valueInt; 3004 String8 value; 3005 3006 Mutex::Autolock _l(mLock); 3007 mWaitWorkCV.waitRelative(mLock, milliseconds(50)); 3008 3009 command = mpClientInterface->getParameters(0, String8("test_cmd_policy")); 3010 AudioParameter param = AudioParameter(command); 3011 3012 if (param.getInt(String8("test_cmd_policy"), valueInt) == NO_ERROR && 3013 valueInt != 0) { 3014 ALOGV("Test command %s received", command.string()); 3015 String8 target; 3016 if (param.get(String8("target"), target) != NO_ERROR) { 3017 target = "Manager"; 3018 } 3019 if (param.getInt(String8("test_cmd_policy_output"), valueInt) == NO_ERROR) { 3020 param.remove(String8("test_cmd_policy_output")); 3021 mCurOutput = valueInt; 3022 } 3023 if (param.get(String8("test_cmd_policy_direct"), value) == NO_ERROR) { 3024 param.remove(String8("test_cmd_policy_direct")); 3025 if (value == "false") { 3026 mDirectOutput = false; 3027 } else if (value == "true") { 3028 mDirectOutput = true; 3029 } 3030 } 3031 if (param.getInt(String8("test_cmd_policy_input"), valueInt) == NO_ERROR) { 3032 param.remove(String8("test_cmd_policy_input")); 3033 mTestInput = valueInt; 3034 } 3035 3036 if (param.get(String8("test_cmd_policy_format"), value) == NO_ERROR) { 3037 param.remove(String8("test_cmd_policy_format")); 3038 int format = AUDIO_FORMAT_INVALID; 3039 if (value == "PCM 16 bits") { 3040 format = AUDIO_FORMAT_PCM_16_BIT; 3041 } else if (value == "PCM 8 bits") { 3042 format = AUDIO_FORMAT_PCM_8_BIT; 3043 } else if (value == "Compressed MP3") { 3044 format = AUDIO_FORMAT_MP3; 3045 } 3046 if (format != AUDIO_FORMAT_INVALID) { 3047 if (target == "Manager") { 3048 mTestFormat = format; 3049 } else if (mTestOutputs[mCurOutput] != 0) { 3050 AudioParameter outputParam = AudioParameter(); 3051 outputParam.addInt(String8("format"), format); 3052 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 3053 } 3054 } 3055 } 3056 if (param.get(String8("test_cmd_policy_channels"), value) == NO_ERROR) { 3057 param.remove(String8("test_cmd_policy_channels")); 3058 int channels = 0; 3059 3060 if (value == "Channels Stereo") { 3061 channels = AUDIO_CHANNEL_OUT_STEREO; 3062 } else if (value == "Channels Mono") { 3063 channels = AUDIO_CHANNEL_OUT_MONO; 3064 } 3065 if (channels != 0) { 3066 if (target == "Manager") { 3067 mTestChannels = channels; 3068 } else if (mTestOutputs[mCurOutput] != 0) { 3069 AudioParameter outputParam = AudioParameter(); 3070 outputParam.addInt(String8("channels"), channels); 3071 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 3072 } 3073 } 3074 } 3075 if (param.getInt(String8("test_cmd_policy_sampleRate"), valueInt) == NO_ERROR) { 3076 param.remove(String8("test_cmd_policy_sampleRate")); 3077 if (valueInt >= 0 && valueInt <= 96000) { 3078 int samplingRate = valueInt; 3079 if (target == "Manager") { 3080 mTestSamplingRate = samplingRate; 3081 } else if (mTestOutputs[mCurOutput] != 0) { 3082 AudioParameter outputParam = AudioParameter(); 3083 outputParam.addInt(String8("sampling_rate"), samplingRate); 3084 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 3085 } 3086 } 3087 } 3088 3089 if (param.get(String8("test_cmd_policy_reopen"), value) == NO_ERROR) { 3090 param.remove(String8("test_cmd_policy_reopen")); 3091 3092 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 3093 mpClientInterface->closeOutput(mPrimaryOutput); 3094 3095 audio_module_handle_t moduleHandle = outputDesc->mModule->mHandle; 3096 3097 mOutputs.removeItem(mPrimaryOutput); 3098 3099 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(NULL); 3100 outputDesc->mDevice = AUDIO_DEVICE_OUT_SPEAKER; 3101 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3102 config.sample_rate = outputDesc->mSamplingRate; 3103 config.channel_mask = outputDesc->mChannelMask; 3104 config.format = outputDesc->mFormat; 3105 status_t status = mpClientInterface->openOutput(moduleHandle, 3106 &mPrimaryOutput, 3107 &config, 3108 &outputDesc->mDevice, 3109 String8(""), 3110 &outputDesc->mLatency, 3111 outputDesc->mFlags); 3112 if (status != NO_ERROR) { 3113 ALOGE("Failed to reopen hardware output stream, " 3114 "samplingRate: %d, format %d, channels %d", 3115 outputDesc->mSamplingRate, outputDesc->mFormat, outputDesc->mChannelMask); 3116 } else { 3117 outputDesc->mSamplingRate = config.sample_rate; 3118 outputDesc->mChannelMask = config.channel_mask; 3119 outputDesc->mFormat = config.format; 3120 AudioParameter outputCmd = AudioParameter(); 3121 outputCmd.addInt(String8("set_id"), 0); 3122 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 3123 addOutput(mPrimaryOutput, outputDesc); 3124 } 3125 } 3126 3127 3128 mpClientInterface->setParameters(0, String8("test_cmd_policy=")); 3129 } 3130 } 3131 return false; 3132} 3133 3134void AudioPolicyManager::exit() 3135{ 3136 { 3137 AutoMutex _l(mLock); 3138 requestExit(); 3139 mWaitWorkCV.signal(); 3140 } 3141 requestExitAndWait(); 3142} 3143 3144int AudioPolicyManager::testOutputIndex(audio_io_handle_t output) 3145{ 3146 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 3147 if (output == mTestOutputs[i]) return i; 3148 } 3149 return 0; 3150} 3151#endif //AUDIO_POLICY_TEST 3152 3153// --- 3154 3155void AudioPolicyManager::addOutput(audio_io_handle_t output, sp<AudioOutputDescriptor> outputDesc) 3156{ 3157 outputDesc->mIoHandle = output; 3158 outputDesc->mId = nextUniqueId(); 3159 mOutputs.add(output, outputDesc); 3160 nextAudioPortGeneration(); 3161} 3162 3163void AudioPolicyManager::addInput(audio_io_handle_t input, sp<AudioInputDescriptor> inputDesc) 3164{ 3165 inputDesc->mIoHandle = input; 3166 inputDesc->mId = nextUniqueId(); 3167 mInputs.add(input, inputDesc); 3168 nextAudioPortGeneration(); 3169} 3170 3171void AudioPolicyManager::findIoHandlesByAddress(sp<AudioOutputDescriptor> desc /*in*/, 3172 const String8 address /*in*/, 3173 SortedVector<audio_io_handle_t>& outputs /*out*/) { 3174 // look for a match on the given address on the addresses of the outputs: 3175 // find the address by finding the patch that maps to this output 3176 ssize_t patchIdx = mAudioPatches.indexOfKey(desc->mPatchHandle); 3177 //ALOGV(" inspecting output %d (patch %d) for supported device=0x%x", 3178 // outputIdx, patchIdx, desc->mProfile->mSupportedDevices.types()); 3179 if (patchIdx >= 0) { 3180 const sp<AudioPatch> patchDesc = mAudioPatches.valueAt(patchIdx); 3181 const int numSinks = patchDesc->mPatch.num_sinks; 3182 for (ssize_t j=0; j < numSinks; j++) { 3183 if (patchDesc->mPatch.sinks[j].type == AUDIO_PORT_TYPE_DEVICE) { 3184 const char* patchAddr = 3185 patchDesc->mPatch.sinks[j].ext.device.address; 3186 if (strncmp(patchAddr, 3187 address.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN) == 0) { 3188 ALOGV("findIoHandlesByAddress(): adding opened output %d on same address %s", 3189 desc->mIoHandle, patchDesc->mPatch.sinks[j].ext.device.address); 3190 outputs.add(desc->mIoHandle); 3191 break; 3192 } 3193 } 3194 } 3195 } 3196} 3197 3198status_t AudioPolicyManager::checkOutputsForDevice(const sp<DeviceDescriptor> devDesc, 3199 audio_policy_dev_state_t state, 3200 SortedVector<audio_io_handle_t>& outputs, 3201 const String8 address) 3202{ 3203 audio_devices_t device = devDesc->mDeviceType; 3204 sp<AudioOutputDescriptor> desc; 3205 // erase all current sample rates, formats and channel masks 3206 devDesc->clearCapabilities(); 3207 3208 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 3209 // first list already open outputs that can be routed to this device 3210 for (size_t i = 0; i < mOutputs.size(); i++) { 3211 desc = mOutputs.valueAt(i); 3212 if (!desc->isDuplicated() && (desc->mProfile->mSupportedDevices.types() & device)) { 3213 if (!deviceDistinguishesOnAddress(device)) { 3214 ALOGV("checkOutputsForDevice(): adding opened output %d", mOutputs.keyAt(i)); 3215 outputs.add(mOutputs.keyAt(i)); 3216 } else { 3217 ALOGV(" checking address match due to device 0x%x", device); 3218 findIoHandlesByAddress(desc, address, outputs); 3219 } 3220 } 3221 } 3222 // then look for output profiles that can be routed to this device 3223 SortedVector< sp<IOProfile> > profiles; 3224 for (size_t i = 0; i < mHwModules.size(); i++) 3225 { 3226 if (mHwModules[i]->mHandle == 0) { 3227 continue; 3228 } 3229 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3230 { 3231 if (mHwModules[i]->mOutputProfiles[j]->mSupportedDevices.types() & device) { 3232 ALOGV("checkOutputsForDevice(): adding profile %zu from module %zu", j, i); 3233 profiles.add(mHwModules[i]->mOutputProfiles[j]); 3234 } 3235 } 3236 } 3237 3238 ALOGV(" found %d profiles, %d outputs", profiles.size(), outputs.size()); 3239 3240 if (profiles.isEmpty() && outputs.isEmpty()) { 3241 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 3242 return BAD_VALUE; 3243 } 3244 3245 // open outputs for matching profiles if needed. Direct outputs are also opened to 3246 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 3247 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 3248 sp<IOProfile> profile = profiles[profile_index]; 3249 3250 // nothing to do if one output is already opened for this profile 3251 size_t j; 3252 for (j = 0; j < outputs.size(); j++) { 3253 desc = mOutputs.valueFor(outputs.itemAt(j)); 3254 if (!desc->isDuplicated() && desc->mProfile == profile) { 3255 // matching profile: save the sample rates, format and channel masks supported 3256 // by the profile in our device descriptor 3257 devDesc->importAudioPort(profile); 3258 break; 3259 } 3260 } 3261 if (j != outputs.size()) { 3262 continue; 3263 } 3264 3265 ALOGV("opening output for device %08x with params %s profile %p", 3266 device, address.string(), profile.get()); 3267 desc = new AudioOutputDescriptor(profile); 3268 desc->mDevice = device; 3269 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3270 config.sample_rate = desc->mSamplingRate; 3271 config.channel_mask = desc->mChannelMask; 3272 config.format = desc->mFormat; 3273 config.offload_info.sample_rate = desc->mSamplingRate; 3274 config.offload_info.channel_mask = desc->mChannelMask; 3275 config.offload_info.format = desc->mFormat; 3276 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 3277 status_t status = mpClientInterface->openOutput(profile->mModule->mHandle, 3278 &output, 3279 &config, 3280 &desc->mDevice, 3281 address, 3282 &desc->mLatency, 3283 desc->mFlags); 3284 if (status == NO_ERROR) { 3285 desc->mSamplingRate = config.sample_rate; 3286 desc->mChannelMask = config.channel_mask; 3287 desc->mFormat = config.format; 3288 3289 // Here is where the out_set_parameters() for card & device gets called 3290 if (!address.isEmpty()) { 3291 char *param = audio_device_address_to_parameter(device, address); 3292 mpClientInterface->setParameters(output, String8(param)); 3293 free(param); 3294 } 3295 3296 // Here is where we step through and resolve any "dynamic" fields 3297 String8 reply; 3298 char *value; 3299 if (profile->mSamplingRates[0] == 0) { 3300 reply = mpClientInterface->getParameters(output, 3301 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 3302 ALOGV("checkOutputsForDevice() supported sampling rates %s", 3303 reply.string()); 3304 value = strpbrk((char *)reply.string(), "="); 3305 if (value != NULL) { 3306 profile->loadSamplingRates(value + 1); 3307 } 3308 } 3309 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3310 reply = mpClientInterface->getParameters(output, 3311 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 3312 ALOGV("checkOutputsForDevice() supported formats %s", 3313 reply.string()); 3314 value = strpbrk((char *)reply.string(), "="); 3315 if (value != NULL) { 3316 profile->loadFormats(value + 1); 3317 } 3318 } 3319 if (profile->mChannelMasks[0] == 0) { 3320 reply = mpClientInterface->getParameters(output, 3321 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 3322 ALOGV("checkOutputsForDevice() supported channel masks %s", 3323 reply.string()); 3324 value = strpbrk((char *)reply.string(), "="); 3325 if (value != NULL) { 3326 profile->loadOutChannels(value + 1); 3327 } 3328 } 3329 if (((profile->mSamplingRates[0] == 0) && 3330 (profile->mSamplingRates.size() < 2)) || 3331 ((profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) && 3332 (profile->mFormats.size() < 2)) || 3333 ((profile->mChannelMasks[0] == 0) && 3334 (profile->mChannelMasks.size() < 2))) { 3335 ALOGW("checkOutputsForDevice() missing param"); 3336 mpClientInterface->closeOutput(output); 3337 output = AUDIO_IO_HANDLE_NONE; 3338 } else if (profile->mSamplingRates[0] == 0 || profile->mFormats[0] == 0 || 3339 profile->mChannelMasks[0] == 0) { 3340 mpClientInterface->closeOutput(output); 3341 config.sample_rate = profile->pickSamplingRate(); 3342 config.channel_mask = profile->pickChannelMask(); 3343 config.format = profile->pickFormat(); 3344 config.offload_info.sample_rate = config.sample_rate; 3345 config.offload_info.channel_mask = config.channel_mask; 3346 config.offload_info.format = config.format; 3347 status = mpClientInterface->openOutput(profile->mModule->mHandle, 3348 &output, 3349 &config, 3350 &desc->mDevice, 3351 address, 3352 &desc->mLatency, 3353 desc->mFlags); 3354 if (status == NO_ERROR) { 3355 desc->mSamplingRate = config.sample_rate; 3356 desc->mChannelMask = config.channel_mask; 3357 desc->mFormat = config.format; 3358 } else { 3359 output = AUDIO_IO_HANDLE_NONE; 3360 } 3361 } 3362 3363 if (output != AUDIO_IO_HANDLE_NONE) { 3364 addOutput(output, desc); 3365 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) { 3366 audio_io_handle_t duplicatedOutput = AUDIO_IO_HANDLE_NONE; 3367 3368 // set initial stream volume for device 3369 applyStreamVolumes(output, device, 0, true); 3370 3371 //TODO: configure audio effect output stage here 3372 3373 // open a duplicating output thread for the new output and the primary output 3374 duplicatedOutput = mpClientInterface->openDuplicateOutput(output, 3375 mPrimaryOutput); 3376 if (duplicatedOutput != AUDIO_IO_HANDLE_NONE) { 3377 // add duplicated output descriptor 3378 sp<AudioOutputDescriptor> dupOutputDesc = 3379 new AudioOutputDescriptor(NULL); 3380 dupOutputDesc->mOutput1 = mOutputs.valueFor(mPrimaryOutput); 3381 dupOutputDesc->mOutput2 = mOutputs.valueFor(output); 3382 dupOutputDesc->mSamplingRate = desc->mSamplingRate; 3383 dupOutputDesc->mFormat = desc->mFormat; 3384 dupOutputDesc->mChannelMask = desc->mChannelMask; 3385 dupOutputDesc->mLatency = desc->mLatency; 3386 addOutput(duplicatedOutput, dupOutputDesc); 3387 applyStreamVolumes(duplicatedOutput, device, 0, true); 3388 } else { 3389 ALOGW("checkOutputsForDevice() could not open dup output for %d and %d", 3390 mPrimaryOutput, output); 3391 mpClientInterface->closeOutput(output); 3392 mOutputs.removeItem(output); 3393 nextAudioPortGeneration(); 3394 output = AUDIO_IO_HANDLE_NONE; 3395 } 3396 } 3397 } 3398 } else { 3399 output = AUDIO_IO_HANDLE_NONE; 3400 } 3401 if (output == AUDIO_IO_HANDLE_NONE) { 3402 ALOGW("checkOutputsForDevice() could not open output for device %x", device); 3403 profiles.removeAt(profile_index); 3404 profile_index--; 3405 } else { 3406 outputs.add(output); 3407 devDesc->importAudioPort(profile); 3408 3409 if (deviceDistinguishesOnAddress(device)) { 3410 ALOGV("checkOutputsForDevice(): setOutputDevice(dev=0x%x, addr=%s)", 3411 device, address.string()); 3412 setOutputDevice(output, device, true/*force*/, 0/*delay*/, 3413 NULL/*patch handle*/, address.string()); 3414 } 3415 ALOGV("checkOutputsForDevice(): adding output %d", output); 3416 } 3417 } 3418 3419 if (profiles.isEmpty()) { 3420 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 3421 return BAD_VALUE; 3422 } 3423 } else { // Disconnect 3424 // check if one opened output is not needed any more after disconnecting one device 3425 for (size_t i = 0; i < mOutputs.size(); i++) { 3426 desc = mOutputs.valueAt(i); 3427 if (!desc->isDuplicated()) { 3428 if (!(desc->mProfile->mSupportedDevices.types() 3429 & mAvailableOutputDevices.types())) { 3430 ALOGV("checkOutputsForDevice(): disconnecting adding output %d", 3431 mOutputs.keyAt(i)); 3432 outputs.add(mOutputs.keyAt(i)); 3433 } else if (deviceDistinguishesOnAddress(device) && 3434 // exact match on device 3435 (desc->mProfile->mSupportedDevices.types() == device)) { 3436 findIoHandlesByAddress(desc, address, outputs); 3437 } 3438 } 3439 } 3440 // Clear any profiles associated with the disconnected device. 3441 for (size_t i = 0; i < mHwModules.size(); i++) 3442 { 3443 if (mHwModules[i]->mHandle == 0) { 3444 continue; 3445 } 3446 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3447 { 3448 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 3449 if (profile->mSupportedDevices.types() & device) { 3450 ALOGV("checkOutputsForDevice(): " 3451 "clearing direct output profile %zu on module %zu", j, i); 3452 if (profile->mSamplingRates[0] == 0) { 3453 profile->mSamplingRates.clear(); 3454 profile->mSamplingRates.add(0); 3455 } 3456 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3457 profile->mFormats.clear(); 3458 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 3459 } 3460 if (profile->mChannelMasks[0] == 0) { 3461 profile->mChannelMasks.clear(); 3462 profile->mChannelMasks.add(0); 3463 } 3464 } 3465 } 3466 } 3467 } 3468 return NO_ERROR; 3469} 3470 3471status_t AudioPolicyManager::checkInputsForDevice(audio_devices_t device, 3472 audio_policy_dev_state_t state, 3473 SortedVector<audio_io_handle_t>& inputs, 3474 const String8 address) 3475{ 3476 sp<AudioInputDescriptor> desc; 3477 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 3478 // first list already open inputs that can be routed to this device 3479 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 3480 desc = mInputs.valueAt(input_index); 3481 if (desc->mProfile->mSupportedDevices.types() & (device & ~AUDIO_DEVICE_BIT_IN)) { 3482 ALOGV("checkInputsForDevice(): adding opened input %d", mInputs.keyAt(input_index)); 3483 inputs.add(mInputs.keyAt(input_index)); 3484 } 3485 } 3486 3487 // then look for input profiles that can be routed to this device 3488 SortedVector< sp<IOProfile> > profiles; 3489 for (size_t module_idx = 0; module_idx < mHwModules.size(); module_idx++) 3490 { 3491 if (mHwModules[module_idx]->mHandle == 0) { 3492 continue; 3493 } 3494 for (size_t profile_index = 0; 3495 profile_index < mHwModules[module_idx]->mInputProfiles.size(); 3496 profile_index++) 3497 { 3498 if (mHwModules[module_idx]->mInputProfiles[profile_index]->mSupportedDevices.types() 3499 & (device & ~AUDIO_DEVICE_BIT_IN)) { 3500 ALOGV("checkInputsForDevice(): adding profile %zu from module %zu", 3501 profile_index, module_idx); 3502 profiles.add(mHwModules[module_idx]->mInputProfiles[profile_index]); 3503 } 3504 } 3505 } 3506 3507 if (profiles.isEmpty() && inputs.isEmpty()) { 3508 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 3509 return BAD_VALUE; 3510 } 3511 3512 // open inputs for matching profiles if needed. Direct inputs are also opened to 3513 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 3514 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 3515 3516 sp<IOProfile> profile = profiles[profile_index]; 3517 // nothing to do if one input is already opened for this profile 3518 size_t input_index; 3519 for (input_index = 0; input_index < mInputs.size(); input_index++) { 3520 desc = mInputs.valueAt(input_index); 3521 if (desc->mProfile == profile) { 3522 break; 3523 } 3524 } 3525 if (input_index != mInputs.size()) { 3526 continue; 3527 } 3528 3529 ALOGV("opening input for device 0x%X with params %s", device, address.string()); 3530 desc = new AudioInputDescriptor(profile); 3531 desc->mDevice = device; 3532 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3533 config.sample_rate = desc->mSamplingRate; 3534 config.channel_mask = desc->mChannelMask; 3535 config.format = desc->mFormat; 3536 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 3537 status_t status = mpClientInterface->openInput(profile->mModule->mHandle, 3538 &input, 3539 &config, 3540 &desc->mDevice, 3541 address, 3542 AUDIO_SOURCE_MIC, 3543 AUDIO_INPUT_FLAG_NONE /*FIXME*/); 3544 3545 if (status == NO_ERROR) { 3546 desc->mSamplingRate = config.sample_rate; 3547 desc->mChannelMask = config.channel_mask; 3548 desc->mFormat = config.format; 3549 3550 if (!address.isEmpty()) { 3551 char *param = audio_device_address_to_parameter(device, address); 3552 mpClientInterface->setParameters(input, String8(param)); 3553 free(param); 3554 } 3555 3556 // Here is where we step through and resolve any "dynamic" fields 3557 String8 reply; 3558 char *value; 3559 if (profile->mSamplingRates[0] == 0) { 3560 reply = mpClientInterface->getParameters(input, 3561 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 3562 ALOGV("checkInputsForDevice() direct input sup sampling rates %s", 3563 reply.string()); 3564 value = strpbrk((char *)reply.string(), "="); 3565 if (value != NULL) { 3566 profile->loadSamplingRates(value + 1); 3567 } 3568 } 3569 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3570 reply = mpClientInterface->getParameters(input, 3571 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 3572 ALOGV("checkInputsForDevice() direct input sup formats %s", reply.string()); 3573 value = strpbrk((char *)reply.string(), "="); 3574 if (value != NULL) { 3575 profile->loadFormats(value + 1); 3576 } 3577 } 3578 if (profile->mChannelMasks[0] == 0) { 3579 reply = mpClientInterface->getParameters(input, 3580 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 3581 ALOGV("checkInputsForDevice() direct input sup channel masks %s", 3582 reply.string()); 3583 value = strpbrk((char *)reply.string(), "="); 3584 if (value != NULL) { 3585 profile->loadInChannels(value + 1); 3586 } 3587 } 3588 if (((profile->mSamplingRates[0] == 0) && (profile->mSamplingRates.size() < 2)) || 3589 ((profile->mFormats[0] == 0) && (profile->mFormats.size() < 2)) || 3590 ((profile->mChannelMasks[0] == 0) && (profile->mChannelMasks.size() < 2))) { 3591 ALOGW("checkInputsForDevice() direct input missing param"); 3592 mpClientInterface->closeInput(input); 3593 input = AUDIO_IO_HANDLE_NONE; 3594 } 3595 3596 if (input != 0) { 3597 addInput(input, desc); 3598 } 3599 } // endif input != 0 3600 3601 if (input == AUDIO_IO_HANDLE_NONE) { 3602 ALOGW("checkInputsForDevice() could not open input for device 0x%X", device); 3603 profiles.removeAt(profile_index); 3604 profile_index--; 3605 } else { 3606 inputs.add(input); 3607 ALOGV("checkInputsForDevice(): adding input %d", input); 3608 } 3609 } // end scan profiles 3610 3611 if (profiles.isEmpty()) { 3612 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 3613 return BAD_VALUE; 3614 } 3615 } else { 3616 // Disconnect 3617 // check if one opened input is not needed any more after disconnecting one device 3618 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 3619 desc = mInputs.valueAt(input_index); 3620 if (!(desc->mProfile->mSupportedDevices.types() & mAvailableInputDevices.types() & 3621 ~AUDIO_DEVICE_BIT_IN)) { 3622 ALOGV("checkInputsForDevice(): disconnecting adding input %d", 3623 mInputs.keyAt(input_index)); 3624 inputs.add(mInputs.keyAt(input_index)); 3625 } 3626 } 3627 // Clear any profiles associated with the disconnected device. 3628 for (size_t module_index = 0; module_index < mHwModules.size(); module_index++) { 3629 if (mHwModules[module_index]->mHandle == 0) { 3630 continue; 3631 } 3632 for (size_t profile_index = 0; 3633 profile_index < mHwModules[module_index]->mInputProfiles.size(); 3634 profile_index++) { 3635 sp<IOProfile> profile = mHwModules[module_index]->mInputProfiles[profile_index]; 3636 if (profile->mSupportedDevices.types() & device & ~AUDIO_DEVICE_BIT_IN) { 3637 ALOGV("checkInputsForDevice(): clearing direct input profile %zu on module %zu", 3638 profile_index, module_index); 3639 if (profile->mSamplingRates[0] == 0) { 3640 profile->mSamplingRates.clear(); 3641 profile->mSamplingRates.add(0); 3642 } 3643 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3644 profile->mFormats.clear(); 3645 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 3646 } 3647 if (profile->mChannelMasks[0] == 0) { 3648 profile->mChannelMasks.clear(); 3649 profile->mChannelMasks.add(0); 3650 } 3651 } 3652 } 3653 } 3654 } // end disconnect 3655 3656 return NO_ERROR; 3657} 3658 3659 3660void AudioPolicyManager::closeOutput(audio_io_handle_t output) 3661{ 3662 ALOGV("closeOutput(%d)", output); 3663 3664 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 3665 if (outputDesc == NULL) { 3666 ALOGW("closeOutput() unknown output %d", output); 3667 return; 3668 } 3669 3670 // look for duplicated outputs connected to the output being removed. 3671 for (size_t i = 0; i < mOutputs.size(); i++) { 3672 sp<AudioOutputDescriptor> dupOutputDesc = mOutputs.valueAt(i); 3673 if (dupOutputDesc->isDuplicated() && 3674 (dupOutputDesc->mOutput1 == outputDesc || 3675 dupOutputDesc->mOutput2 == outputDesc)) { 3676 sp<AudioOutputDescriptor> outputDesc2; 3677 if (dupOutputDesc->mOutput1 == outputDesc) { 3678 outputDesc2 = dupOutputDesc->mOutput2; 3679 } else { 3680 outputDesc2 = dupOutputDesc->mOutput1; 3681 } 3682 // As all active tracks on duplicated output will be deleted, 3683 // and as they were also referenced on the other output, the reference 3684 // count for their stream type must be adjusted accordingly on 3685 // the other output. 3686 for (int j = 0; j < AUDIO_STREAM_CNT; j++) { 3687 int refCount = dupOutputDesc->mRefCount[j]; 3688 outputDesc2->changeRefCount((audio_stream_type_t)j,-refCount); 3689 } 3690 audio_io_handle_t duplicatedOutput = mOutputs.keyAt(i); 3691 ALOGV("closeOutput() closing also duplicated output %d", duplicatedOutput); 3692 3693 mpClientInterface->closeOutput(duplicatedOutput); 3694 mOutputs.removeItem(duplicatedOutput); 3695 } 3696 } 3697 3698 nextAudioPortGeneration(); 3699 3700 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3701 if (index >= 0) { 3702 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3703 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 3704 mAudioPatches.removeItemsAt(index); 3705 mpClientInterface->onAudioPatchListUpdate(); 3706 } 3707 3708 AudioParameter param; 3709 param.add(String8("closing"), String8("true")); 3710 mpClientInterface->setParameters(output, param.toString()); 3711 3712 mpClientInterface->closeOutput(output); 3713 mOutputs.removeItem(output); 3714 mPreviousOutputs = mOutputs; 3715} 3716 3717void AudioPolicyManager::closeInput(audio_io_handle_t input) 3718{ 3719 ALOGV("closeInput(%d)", input); 3720 3721 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 3722 if (inputDesc == NULL) { 3723 ALOGW("closeInput() unknown input %d", input); 3724 return; 3725 } 3726 3727 nextAudioPortGeneration(); 3728 3729 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 3730 if (index >= 0) { 3731 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3732 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 3733 mAudioPatches.removeItemsAt(index); 3734 mpClientInterface->onAudioPatchListUpdate(); 3735 } 3736 3737 mpClientInterface->closeInput(input); 3738 mInputs.removeItem(input); 3739} 3740 3741SortedVector<audio_io_handle_t> AudioPolicyManager::getOutputsForDevice(audio_devices_t device, 3742 DefaultKeyedVector<audio_io_handle_t, sp<AudioOutputDescriptor> > openOutputs) 3743{ 3744 SortedVector<audio_io_handle_t> outputs; 3745 3746 ALOGVV("getOutputsForDevice() device %04x", device); 3747 for (size_t i = 0; i < openOutputs.size(); i++) { 3748 ALOGVV("output %d isDuplicated=%d device=%04x", 3749 i, openOutputs.valueAt(i)->isDuplicated(), openOutputs.valueAt(i)->supportedDevices()); 3750 if ((device & openOutputs.valueAt(i)->supportedDevices()) == device) { 3751 ALOGVV("getOutputsForDevice() found output %d", openOutputs.keyAt(i)); 3752 outputs.add(openOutputs.keyAt(i)); 3753 } 3754 } 3755 return outputs; 3756} 3757 3758bool AudioPolicyManager::vectorsEqual(SortedVector<audio_io_handle_t>& outputs1, 3759 SortedVector<audio_io_handle_t>& outputs2) 3760{ 3761 if (outputs1.size() != outputs2.size()) { 3762 return false; 3763 } 3764 for (size_t i = 0; i < outputs1.size(); i++) { 3765 if (outputs1[i] != outputs2[i]) { 3766 return false; 3767 } 3768 } 3769 return true; 3770} 3771 3772void AudioPolicyManager::checkOutputForStrategy(routing_strategy strategy) 3773{ 3774 audio_devices_t oldDevice = getDeviceForStrategy(strategy, true /*fromCache*/); 3775 audio_devices_t newDevice = getDeviceForStrategy(strategy, false /*fromCache*/); 3776 SortedVector<audio_io_handle_t> srcOutputs = getOutputsForDevice(oldDevice, mPreviousOutputs); 3777 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(newDevice, mOutputs); 3778 3779 if (!vectorsEqual(srcOutputs,dstOutputs)) { 3780 ALOGV("checkOutputForStrategy() strategy %d, moving from output %d to output %d", 3781 strategy, srcOutputs[0], dstOutputs[0]); 3782 // mute strategy while moving tracks from one output to another 3783 for (size_t i = 0; i < srcOutputs.size(); i++) { 3784 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(srcOutputs[i]); 3785 if (desc->isStrategyActive(strategy)) { 3786 setStrategyMute(strategy, true, srcOutputs[i]); 3787 setStrategyMute(strategy, false, srcOutputs[i], MUTE_TIME_MS, newDevice); 3788 } 3789 } 3790 3791 // Move effects associated to this strategy from previous output to new output 3792 if (strategy == STRATEGY_MEDIA) { 3793 audio_io_handle_t fxOutput = selectOutputForEffects(dstOutputs); 3794 SortedVector<audio_io_handle_t> moved; 3795 for (size_t i = 0; i < mEffects.size(); i++) { 3796 sp<EffectDescriptor> effectDesc = mEffects.valueAt(i); 3797 if (effectDesc->mSession == AUDIO_SESSION_OUTPUT_MIX && 3798 effectDesc->mIo != fxOutput) { 3799 if (moved.indexOf(effectDesc->mIo) < 0) { 3800 ALOGV("checkOutputForStrategy() moving effect %d to output %d", 3801 mEffects.keyAt(i), fxOutput); 3802 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, effectDesc->mIo, 3803 fxOutput); 3804 moved.add(effectDesc->mIo); 3805 } 3806 effectDesc->mIo = fxOutput; 3807 } 3808 } 3809 } 3810 // Move tracks associated to this strategy from previous output to new output 3811 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 3812 if (i == AUDIO_STREAM_PATCH) { 3813 continue; 3814 } 3815 if (getStrategy((audio_stream_type_t)i) == strategy) { 3816 mpClientInterface->invalidateStream((audio_stream_type_t)i); 3817 } 3818 } 3819 } 3820} 3821 3822void AudioPolicyManager::checkOutputForAllStrategies() 3823{ 3824 if (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) 3825 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 3826 checkOutputForStrategy(STRATEGY_PHONE); 3827 if (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] != AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) 3828 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 3829 checkOutputForStrategy(STRATEGY_SONIFICATION); 3830 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 3831 checkOutputForStrategy(STRATEGY_ACCESSIBILITY); 3832 checkOutputForStrategy(STRATEGY_MEDIA); 3833 checkOutputForStrategy(STRATEGY_DTMF); 3834 checkOutputForStrategy(STRATEGY_REROUTING); 3835} 3836 3837audio_io_handle_t AudioPolicyManager::getA2dpOutput() 3838{ 3839 for (size_t i = 0; i < mOutputs.size(); i++) { 3840 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 3841 if (!outputDesc->isDuplicated() && outputDesc->device() & AUDIO_DEVICE_OUT_ALL_A2DP) { 3842 return mOutputs.keyAt(i); 3843 } 3844 } 3845 3846 return 0; 3847} 3848 3849void AudioPolicyManager::checkA2dpSuspend() 3850{ 3851 audio_io_handle_t a2dpOutput = getA2dpOutput(); 3852 if (a2dpOutput == 0) { 3853 mA2dpSuspended = false; 3854 return; 3855 } 3856 3857 bool isScoConnected = 3858 ((mAvailableInputDevices.types() & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET & 3859 ~AUDIO_DEVICE_BIT_IN) != 0) || 3860 ((mAvailableOutputDevices.types() & AUDIO_DEVICE_OUT_ALL_SCO) != 0); 3861 // suspend A2DP output if: 3862 // (NOT already suspended) && 3863 // ((SCO device is connected && 3864 // (forced usage for communication || for record is SCO))) || 3865 // (phone state is ringing || in call) 3866 // 3867 // restore A2DP output if: 3868 // (Already suspended) && 3869 // ((SCO device is NOT connected || 3870 // (forced usage NOT for communication && NOT for record is SCO))) && 3871 // (phone state is NOT ringing && NOT in call) 3872 // 3873 if (mA2dpSuspended) { 3874 if ((!isScoConnected || 3875 ((mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] != AUDIO_POLICY_FORCE_BT_SCO) && 3876 (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] != AUDIO_POLICY_FORCE_BT_SCO))) && 3877 ((mPhoneState != AUDIO_MODE_IN_CALL) && 3878 (mPhoneState != AUDIO_MODE_RINGTONE))) { 3879 3880 mpClientInterface->restoreOutput(a2dpOutput); 3881 mA2dpSuspended = false; 3882 } 3883 } else { 3884 if ((isScoConnected && 3885 ((mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO) || 3886 (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO))) || 3887 ((mPhoneState == AUDIO_MODE_IN_CALL) || 3888 (mPhoneState == AUDIO_MODE_RINGTONE))) { 3889 3890 mpClientInterface->suspendOutput(a2dpOutput); 3891 mA2dpSuspended = true; 3892 } 3893 } 3894} 3895 3896audio_devices_t AudioPolicyManager::getNewOutputDevice(audio_io_handle_t output, bool fromCache) 3897{ 3898 audio_devices_t device = AUDIO_DEVICE_NONE; 3899 3900 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 3901 3902 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3903 if (index >= 0) { 3904 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3905 if (patchDesc->mUid != mUidCached) { 3906 ALOGV("getNewOutputDevice() device %08x forced by patch %d", 3907 outputDesc->device(), outputDesc->mPatchHandle); 3908 return outputDesc->device(); 3909 } 3910 } 3911 3912 // check the following by order of priority to request a routing change if necessary: 3913 // 1: the strategy enforced audible is active and enforced on the output: 3914 // use device for strategy enforced audible 3915 // 2: we are in call or the strategy phone is active on the output: 3916 // use device for strategy phone 3917 // 3: the strategy for enforced audible is active but not enforced on the output: 3918 // use the device for strategy enforced audible 3919 // 4: the strategy sonification is active on the output: 3920 // use device for strategy sonification 3921 // 5: the strategy "respectful" sonification is active on the output: 3922 // use device for strategy "respectful" sonification 3923 // 6: the strategy accessibility is active on the output: 3924 // use device for strategy accessibility 3925 // 7: the strategy media is active on the output: 3926 // use device for strategy media 3927 // 8: the strategy DTMF is active on the output: 3928 // use device for strategy DTMF 3929 // 9: the strategy for beacon, a.k.a. "transmitted through speaker" is active on the output: 3930 // use device for strategy t-t-s 3931 if (outputDesc->isStrategyActive(STRATEGY_ENFORCED_AUDIBLE) && 3932 mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) { 3933 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 3934 } else if (isInCall() || 3935 outputDesc->isStrategyActive(STRATEGY_PHONE)) { 3936 device = getDeviceForStrategy(STRATEGY_PHONE, fromCache); 3937 } else if (outputDesc->isStrategyActive(STRATEGY_ENFORCED_AUDIBLE)) { 3938 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 3939 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION)) { 3940 device = getDeviceForStrategy(STRATEGY_SONIFICATION, fromCache); 3941 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION_RESPECTFUL)) { 3942 device = getDeviceForStrategy(STRATEGY_SONIFICATION_RESPECTFUL, fromCache); 3943 } else if (outputDesc->isStrategyActive(STRATEGY_ACCESSIBILITY)) { 3944 device = getDeviceForStrategy(STRATEGY_ACCESSIBILITY, fromCache); 3945 } else if (outputDesc->isStrategyActive(STRATEGY_MEDIA)) { 3946 device = getDeviceForStrategy(STRATEGY_MEDIA, fromCache); 3947 } else if (outputDesc->isStrategyActive(STRATEGY_DTMF)) { 3948 device = getDeviceForStrategy(STRATEGY_DTMF, fromCache); 3949 } else if (outputDesc->isStrategyActive(STRATEGY_TRANSMITTED_THROUGH_SPEAKER)) { 3950 device = getDeviceForStrategy(STRATEGY_TRANSMITTED_THROUGH_SPEAKER, fromCache); 3951 } else if (outputDesc->isStrategyActive(STRATEGY_REROUTING)) { 3952 device = getDeviceForStrategy(STRATEGY_REROUTING, fromCache); 3953 } 3954 3955 ALOGV("getNewOutputDevice() selected device %x", device); 3956 return device; 3957} 3958 3959audio_devices_t AudioPolicyManager::getNewInputDevice(audio_io_handle_t input) 3960{ 3961 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 3962 3963 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 3964 if (index >= 0) { 3965 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3966 if (patchDesc->mUid != mUidCached) { 3967 ALOGV("getNewInputDevice() device %08x forced by patch %d", 3968 inputDesc->mDevice, inputDesc->mPatchHandle); 3969 return inputDesc->mDevice; 3970 } 3971 } 3972 3973 audio_devices_t device = getDeviceForInputSource(inputDesc->mInputSource); 3974 3975 ALOGV("getNewInputDevice() selected device %x", device); 3976 return device; 3977} 3978 3979uint32_t AudioPolicyManager::getStrategyForStream(audio_stream_type_t stream) { 3980 return (uint32_t)getStrategy(stream); 3981} 3982 3983audio_devices_t AudioPolicyManager::getDevicesForStream(audio_stream_type_t stream) { 3984 // By checking the range of stream before calling getStrategy, we avoid 3985 // getStrategy's behavior for invalid streams. getStrategy would do a ALOGE 3986 // and then return STRATEGY_MEDIA, but we want to return the empty set. 3987 if (stream < (audio_stream_type_t) 0 || stream >= AUDIO_STREAM_PUBLIC_CNT) { 3988 return AUDIO_DEVICE_NONE; 3989 } 3990 audio_devices_t devices; 3991 AudioPolicyManager::routing_strategy strategy = getStrategy(stream); 3992 devices = getDeviceForStrategy(strategy, true /*fromCache*/); 3993 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(devices, mOutputs); 3994 for (size_t i = 0; i < outputs.size(); i++) { 3995 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 3996 if (outputDesc->isStrategyActive(strategy)) { 3997 devices = outputDesc->device(); 3998 break; 3999 } 4000 } 4001 4002 /*Filter SPEAKER_SAFE out of results, as AudioService doesn't know about it 4003 and doesn't really need to.*/ 4004 if (devices & AUDIO_DEVICE_OUT_SPEAKER_SAFE) { 4005 devices |= AUDIO_DEVICE_OUT_SPEAKER; 4006 devices &= ~AUDIO_DEVICE_OUT_SPEAKER_SAFE; 4007 } 4008 4009 return devices; 4010} 4011 4012AudioPolicyManager::routing_strategy AudioPolicyManager::getStrategy( 4013 audio_stream_type_t stream) { 4014 4015 ALOG_ASSERT(stream != AUDIO_STREAM_PATCH,"getStrategy() called for AUDIO_STREAM_PATCH"); 4016 4017 // stream to strategy mapping 4018 switch (stream) { 4019 case AUDIO_STREAM_VOICE_CALL: 4020 case AUDIO_STREAM_BLUETOOTH_SCO: 4021 return STRATEGY_PHONE; 4022 case AUDIO_STREAM_RING: 4023 case AUDIO_STREAM_ALARM: 4024 return STRATEGY_SONIFICATION; 4025 case AUDIO_STREAM_NOTIFICATION: 4026 return STRATEGY_SONIFICATION_RESPECTFUL; 4027 case AUDIO_STREAM_DTMF: 4028 return STRATEGY_DTMF; 4029 default: 4030 ALOGE("unknown stream type %d", stream); 4031 case AUDIO_STREAM_SYSTEM: 4032 // NOTE: SYSTEM stream uses MEDIA strategy because muting music and switching outputs 4033 // while key clicks are played produces a poor result 4034 case AUDIO_STREAM_MUSIC: 4035 return STRATEGY_MEDIA; 4036 case AUDIO_STREAM_ENFORCED_AUDIBLE: 4037 return STRATEGY_ENFORCED_AUDIBLE; 4038 case AUDIO_STREAM_TTS: 4039 return STRATEGY_TRANSMITTED_THROUGH_SPEAKER; 4040 case AUDIO_STREAM_ACCESSIBILITY: 4041 return STRATEGY_ACCESSIBILITY; 4042 case AUDIO_STREAM_REROUTING: 4043 return STRATEGY_REROUTING; 4044 } 4045} 4046 4047uint32_t AudioPolicyManager::getStrategyForAttr(const audio_attributes_t *attr) { 4048 // flags to strategy mapping 4049 if ((attr->flags & AUDIO_FLAG_BEACON) == AUDIO_FLAG_BEACON) { 4050 return (uint32_t) STRATEGY_TRANSMITTED_THROUGH_SPEAKER; 4051 } 4052 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 4053 return (uint32_t) STRATEGY_ENFORCED_AUDIBLE; 4054 } 4055 4056 // usage to strategy mapping 4057 switch (attr->usage) { 4058 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 4059 if (isStreamActive(AUDIO_STREAM_RING) || isStreamActive(AUDIO_STREAM_ALARM)) { 4060 return (uint32_t) STRATEGY_SONIFICATION; 4061 } 4062 if (isInCall()) { 4063 return (uint32_t) STRATEGY_PHONE; 4064 } 4065 return (uint32_t) STRATEGY_ACCESSIBILITY; 4066 4067 case AUDIO_USAGE_MEDIA: 4068 case AUDIO_USAGE_GAME: 4069 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 4070 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 4071 return (uint32_t) STRATEGY_MEDIA; 4072 4073 case AUDIO_USAGE_VOICE_COMMUNICATION: 4074 return (uint32_t) STRATEGY_PHONE; 4075 4076 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 4077 return (uint32_t) STRATEGY_DTMF; 4078 4079 case AUDIO_USAGE_ALARM: 4080 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 4081 return (uint32_t) STRATEGY_SONIFICATION; 4082 4083 case AUDIO_USAGE_NOTIFICATION: 4084 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 4085 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 4086 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 4087 case AUDIO_USAGE_NOTIFICATION_EVENT: 4088 return (uint32_t) STRATEGY_SONIFICATION_RESPECTFUL; 4089 4090 case AUDIO_USAGE_UNKNOWN: 4091 default: 4092 return (uint32_t) STRATEGY_MEDIA; 4093 } 4094} 4095 4096void AudioPolicyManager::handleNotificationRoutingForStream(audio_stream_type_t stream) { 4097 switch(stream) { 4098 case AUDIO_STREAM_MUSIC: 4099 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 4100 updateDevicesAndOutputs(); 4101 break; 4102 default: 4103 break; 4104 } 4105} 4106 4107bool AudioPolicyManager::isAnyOutputActive(audio_stream_type_t streamToIgnore) { 4108 for (size_t s = 0 ; s < AUDIO_STREAM_CNT ; s++) { 4109 if (s == (size_t) streamToIgnore) { 4110 continue; 4111 } 4112 for (size_t i = 0; i < mOutputs.size(); i++) { 4113 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 4114 if (outputDesc->mRefCount[s] != 0) { 4115 return true; 4116 } 4117 } 4118 } 4119 return false; 4120} 4121 4122uint32_t AudioPolicyManager::handleEventForBeacon(int event) { 4123 switch(event) { 4124 case STARTING_OUTPUT: 4125 mBeaconMuteRefCount++; 4126 break; 4127 case STOPPING_OUTPUT: 4128 if (mBeaconMuteRefCount > 0) { 4129 mBeaconMuteRefCount--; 4130 } 4131 break; 4132 case STARTING_BEACON: 4133 mBeaconPlayingRefCount++; 4134 break; 4135 case STOPPING_BEACON: 4136 if (mBeaconPlayingRefCount > 0) { 4137 mBeaconPlayingRefCount--; 4138 } 4139 break; 4140 } 4141 4142 if (mBeaconMuteRefCount > 0) { 4143 // any playback causes beacon to be muted 4144 return setBeaconMute(true); 4145 } else { 4146 // no other playback: unmute when beacon starts playing, mute when it stops 4147 return setBeaconMute(mBeaconPlayingRefCount == 0); 4148 } 4149} 4150 4151uint32_t AudioPolicyManager::setBeaconMute(bool mute) { 4152 ALOGV("setBeaconMute(%d) mBeaconMuteRefCount=%d mBeaconPlayingRefCount=%d", 4153 mute, mBeaconMuteRefCount, mBeaconPlayingRefCount); 4154 // keep track of muted state to avoid repeating mute/unmute operations 4155 if (mBeaconMuted != mute) { 4156 // mute/unmute AUDIO_STREAM_TTS on all outputs 4157 ALOGV("\t muting %d", mute); 4158 uint32_t maxLatency = 0; 4159 for (size_t i = 0; i < mOutputs.size(); i++) { 4160 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 4161 setStreamMute(AUDIO_STREAM_TTS, mute/*on*/, 4162 desc->mIoHandle, 4163 0 /*delay*/, AUDIO_DEVICE_NONE); 4164 const uint32_t latency = desc->latency() * 2; 4165 if (latency > maxLatency) { 4166 maxLatency = latency; 4167 } 4168 } 4169 mBeaconMuted = mute; 4170 return maxLatency; 4171 } 4172 return 0; 4173} 4174 4175audio_devices_t AudioPolicyManager::getDeviceForStrategy(routing_strategy strategy, 4176 bool fromCache) 4177{ 4178 uint32_t device = AUDIO_DEVICE_NONE; 4179 4180 if (fromCache) { 4181 ALOGVV("getDeviceForStrategy() from cache strategy %d, device %x", 4182 strategy, mDeviceForStrategy[strategy]); 4183 return mDeviceForStrategy[strategy]; 4184 } 4185 audio_devices_t availableOutputDeviceTypes = mAvailableOutputDevices.types(); 4186 switch (strategy) { 4187 4188 case STRATEGY_TRANSMITTED_THROUGH_SPEAKER: 4189 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4190 if (!device) { 4191 ALOGE("getDeviceForStrategy() no device found for "\ 4192 "STRATEGY_TRANSMITTED_THROUGH_SPEAKER"); 4193 } 4194 break; 4195 4196 case STRATEGY_SONIFICATION_RESPECTFUL: 4197 if (isInCall()) { 4198 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 4199 } else if (isStreamActiveRemotely(AUDIO_STREAM_MUSIC, 4200 SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { 4201 // while media is playing on a remote device, use the the sonification behavior. 4202 // Note that we test this usecase before testing if media is playing because 4203 // the isStreamActive() method only informs about the activity of a stream, not 4204 // if it's for local playback. Note also that we use the same delay between both tests 4205 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 4206 //user "safe" speaker if available instead of normal speaker to avoid triggering 4207 //other acoustic safety mechanisms for notification 4208 if (device == AUDIO_DEVICE_OUT_SPEAKER && (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER_SAFE)) 4209 device = AUDIO_DEVICE_OUT_SPEAKER_SAFE; 4210 } else if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { 4211 // while media is playing (or has recently played), use the same device 4212 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); 4213 } else { 4214 // when media is not playing anymore, fall back on the sonification behavior 4215 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 4216 //user "safe" speaker if available instead of normal speaker to avoid triggering 4217 //other acoustic safety mechanisms for notification 4218 if (device == AUDIO_DEVICE_OUT_SPEAKER && (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER_SAFE)) 4219 device = AUDIO_DEVICE_OUT_SPEAKER_SAFE; 4220 } 4221 4222 break; 4223 4224 case STRATEGY_DTMF: 4225 if (!isInCall()) { 4226 // when off call, DTMF strategy follows the same rules as MEDIA strategy 4227 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); 4228 break; 4229 } 4230 // when in call, DTMF and PHONE strategies follow the same rules 4231 // FALL THROUGH 4232 4233 case STRATEGY_PHONE: 4234 // Force use of only devices on primary output if: 4235 // - in call AND 4236 // - cannot route from voice call RX OR 4237 // - audio HAL version is < 3.0 and TX device is on the primary HW module 4238 if (mPhoneState == AUDIO_MODE_IN_CALL) { 4239 audio_devices_t txDevice = getDeviceForInputSource(AUDIO_SOURCE_VOICE_COMMUNICATION); 4240 sp<AudioOutputDescriptor> hwOutputDesc = mOutputs.valueFor(mPrimaryOutput); 4241 if (((mAvailableInputDevices.types() & 4242 AUDIO_DEVICE_IN_TELEPHONY_RX & ~AUDIO_DEVICE_BIT_IN) == 0) || 4243 (((txDevice & availablePrimaryInputDevices() & ~AUDIO_DEVICE_BIT_IN) != 0) && 4244 (hwOutputDesc->getAudioPort()->mModule->mHalVersion < 4245 AUDIO_DEVICE_API_VERSION_3_0))) { 4246 availableOutputDeviceTypes = availablePrimaryOutputDevices(); 4247 } 4248 } 4249 // for phone strategy, we first consider the forced use and then the available devices by order 4250 // of priority 4251 switch (mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]) { 4252 case AUDIO_POLICY_FORCE_BT_SCO: 4253 if (!isInCall() || strategy != STRATEGY_DTMF) { 4254 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT; 4255 if (device) break; 4256 } 4257 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET; 4258 if (device) break; 4259 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO; 4260 if (device) break; 4261 // if SCO device is requested but no SCO device is available, fall back to default case 4262 // FALL THROUGH 4263 4264 default: // FORCE_NONE 4265 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to A2DP 4266 if (!isInCall() && 4267 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 4268 (getA2dpOutput() != 0)) { 4269 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; 4270 if (device) break; 4271 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; 4272 if (device) break; 4273 } 4274 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; 4275 if (device) break; 4276 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADSET; 4277 if (device) break; 4278 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 4279 if (device) break; 4280 if (mPhoneState != AUDIO_MODE_IN_CALL) { 4281 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 4282 if (device) break; 4283 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 4284 if (device) break; 4285 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 4286 if (device) break; 4287 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 4288 if (device) break; 4289 } 4290 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_EARPIECE; 4291 if (device) break; 4292 device = mDefaultOutputDevice->mDeviceType; 4293 if (device == AUDIO_DEVICE_NONE) { 4294 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE"); 4295 } 4296 break; 4297 4298 case AUDIO_POLICY_FORCE_SPEAKER: 4299 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to 4300 // A2DP speaker when forcing to speaker output 4301 if (!isInCall() && 4302 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 4303 (getA2dpOutput() != 0)) { 4304 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; 4305 if (device) break; 4306 } 4307 if (mPhoneState != AUDIO_MODE_IN_CALL) { 4308 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 4309 if (device) break; 4310 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 4311 if (device) break; 4312 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 4313 if (device) break; 4314 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 4315 if (device) break; 4316 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 4317 if (device) break; 4318 } 4319 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_LINE; 4320 if (device) break; 4321 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4322 if (device) break; 4323 device = mDefaultOutputDevice->mDeviceType; 4324 if (device == AUDIO_DEVICE_NONE) { 4325 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE, FORCE_SPEAKER"); 4326 } 4327 break; 4328 } 4329 break; 4330 4331 case STRATEGY_SONIFICATION: 4332 4333 // If incall, just select the STRATEGY_PHONE device: The rest of the behavior is handled by 4334 // handleIncallSonification(). 4335 if (isInCall()) { 4336 device = getDeviceForStrategy(STRATEGY_PHONE, false /*fromCache*/); 4337 break; 4338 } 4339 // FALL THROUGH 4340 4341 case STRATEGY_ENFORCED_AUDIBLE: 4342 // strategy STRATEGY_ENFORCED_AUDIBLE uses same routing policy as STRATEGY_SONIFICATION 4343 // except: 4344 // - when in call where it doesn't default to STRATEGY_PHONE behavior 4345 // - in countries where not enforced in which case it follows STRATEGY_MEDIA 4346 4347 if ((strategy == STRATEGY_SONIFICATION) || 4348 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED)) { 4349 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4350 if (device == AUDIO_DEVICE_NONE) { 4351 ALOGE("getDeviceForStrategy() speaker device not found for STRATEGY_SONIFICATION"); 4352 } 4353 } 4354 // The second device used for sonification is the same as the device used by media strategy 4355 // FALL THROUGH 4356 4357 // FIXME: STRATEGY_ACCESSIBILITY and STRATEGY_REROUTING follow STRATEGY_MEDIA for now 4358 case STRATEGY_ACCESSIBILITY: 4359 if (strategy == STRATEGY_ACCESSIBILITY) { 4360 // do not route accessibility prompts to a digital output currently configured with a 4361 // compressed format as they would likely not be mixed and dropped. 4362 for (size_t i = 0; i < mOutputs.size(); i++) { 4363 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 4364 audio_devices_t devices = desc->device() & 4365 (AUDIO_DEVICE_OUT_HDMI | AUDIO_DEVICE_OUT_SPDIF | AUDIO_DEVICE_OUT_HDMI_ARC); 4366 if (desc->isActive() && !audio_is_linear_pcm(desc->mFormat) && 4367 devices != AUDIO_DEVICE_NONE) { 4368 availableOutputDeviceTypes = availableOutputDeviceTypes & ~devices; 4369 } 4370 } 4371 } 4372 // FALL THROUGH 4373 4374 case STRATEGY_REROUTING: 4375 case STRATEGY_MEDIA: { 4376 uint32_t device2 = AUDIO_DEVICE_NONE; 4377 if (strategy != STRATEGY_SONIFICATION) { 4378 // no sonification on remote submix (e.g. WFD) 4379 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_REMOTE_SUBMIX; 4380 } 4381 if ((device2 == AUDIO_DEVICE_NONE) && 4382 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 4383 (getA2dpOutput() != 0)) { 4384 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; 4385 if (device2 == AUDIO_DEVICE_NONE) { 4386 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; 4387 } 4388 if (device2 == AUDIO_DEVICE_NONE) { 4389 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; 4390 } 4391 } 4392 if ((device2 == AUDIO_DEVICE_NONE) && 4393 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] == AUDIO_POLICY_FORCE_SPEAKER)) { 4394 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4395 } 4396 if (device2 == AUDIO_DEVICE_NONE) { 4397 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; 4398 } 4399 if ((device2 == AUDIO_DEVICE_NONE)) { 4400 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_LINE; 4401 } 4402 if (device2 == AUDIO_DEVICE_NONE) { 4403 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADSET; 4404 } 4405 if (device2 == AUDIO_DEVICE_NONE) { 4406 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 4407 } 4408 if (device2 == AUDIO_DEVICE_NONE) { 4409 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 4410 } 4411 if (device2 == AUDIO_DEVICE_NONE) { 4412 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 4413 } 4414 if ((device2 == AUDIO_DEVICE_NONE) && (strategy != STRATEGY_SONIFICATION)) { 4415 // no sonification on aux digital (e.g. HDMI) 4416 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 4417 } 4418 if ((device2 == AUDIO_DEVICE_NONE) && 4419 (mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK] == AUDIO_POLICY_FORCE_ANALOG_DOCK)) { 4420 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 4421 } 4422 if (device2 == AUDIO_DEVICE_NONE) { 4423 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4424 } 4425 int device3 = AUDIO_DEVICE_NONE; 4426 if (strategy == STRATEGY_MEDIA) { 4427 // ARC, SPDIF and AUX_LINE can co-exist with others. 4428 device3 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_HDMI_ARC; 4429 device3 |= (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPDIF); 4430 device3 |= (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_LINE); 4431 } 4432 4433 device2 |= device3; 4434 // device is DEVICE_OUT_SPEAKER if we come from case STRATEGY_SONIFICATION or 4435 // STRATEGY_ENFORCED_AUDIBLE, AUDIO_DEVICE_NONE otherwise 4436 device |= device2; 4437 4438 // If hdmi system audio mode is on, remove speaker out of output list. 4439 if ((strategy == STRATEGY_MEDIA) && 4440 (mForceUse[AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO] == 4441 AUDIO_POLICY_FORCE_HDMI_SYSTEM_AUDIO_ENFORCED)) { 4442 device &= ~AUDIO_DEVICE_OUT_SPEAKER; 4443 } 4444 4445 if (device) break; 4446 device = mDefaultOutputDevice->mDeviceType; 4447 if (device == AUDIO_DEVICE_NONE) { 4448 ALOGE("getDeviceForStrategy() no device found for STRATEGY_MEDIA"); 4449 } 4450 } break; 4451 4452 default: 4453 ALOGW("getDeviceForStrategy() unknown strategy: %d", strategy); 4454 break; 4455 } 4456 4457 ALOGVV("getDeviceForStrategy() strategy %d, device %x", strategy, device); 4458 return device; 4459} 4460 4461void AudioPolicyManager::updateDevicesAndOutputs() 4462{ 4463 for (int i = 0; i < NUM_STRATEGIES; i++) { 4464 mDeviceForStrategy[i] = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 4465 } 4466 mPreviousOutputs = mOutputs; 4467} 4468 4469uint32_t AudioPolicyManager::checkDeviceMuteStrategies(sp<AudioOutputDescriptor> outputDesc, 4470 audio_devices_t prevDevice, 4471 uint32_t delayMs) 4472{ 4473 // mute/unmute strategies using an incompatible device combination 4474 // if muting, wait for the audio in pcm buffer to be drained before proceeding 4475 // if unmuting, unmute only after the specified delay 4476 if (outputDesc->isDuplicated()) { 4477 return 0; 4478 } 4479 4480 uint32_t muteWaitMs = 0; 4481 audio_devices_t device = outputDesc->device(); 4482 bool shouldMute = outputDesc->isActive() && (popcount(device) >= 2); 4483 4484 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 4485 audio_devices_t curDevice = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 4486 curDevice = curDevice & outputDesc->mProfile->mSupportedDevices.types(); 4487 bool mute = shouldMute && (curDevice & device) && (curDevice != device); 4488 bool doMute = false; 4489 4490 if (mute && !outputDesc->mStrategyMutedByDevice[i]) { 4491 doMute = true; 4492 outputDesc->mStrategyMutedByDevice[i] = true; 4493 } else if (!mute && outputDesc->mStrategyMutedByDevice[i]){ 4494 doMute = true; 4495 outputDesc->mStrategyMutedByDevice[i] = false; 4496 } 4497 if (doMute) { 4498 for (size_t j = 0; j < mOutputs.size(); j++) { 4499 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(j); 4500 // skip output if it does not share any device with current output 4501 if ((desc->supportedDevices() & outputDesc->supportedDevices()) 4502 == AUDIO_DEVICE_NONE) { 4503 continue; 4504 } 4505 audio_io_handle_t curOutput = mOutputs.keyAt(j); 4506 ALOGVV("checkDeviceMuteStrategies() %s strategy %d (curDevice %04x) on output %d", 4507 mute ? "muting" : "unmuting", i, curDevice, curOutput); 4508 setStrategyMute((routing_strategy)i, mute, curOutput, mute ? 0 : delayMs); 4509 if (desc->isStrategyActive((routing_strategy)i)) { 4510 if (mute) { 4511 // FIXME: should not need to double latency if volume could be applied 4512 // immediately by the audioflinger mixer. We must account for the delay 4513 // between now and the next time the audioflinger thread for this output 4514 // will process a buffer (which corresponds to one buffer size, 4515 // usually 1/2 or 1/4 of the latency). 4516 if (muteWaitMs < desc->latency() * 2) { 4517 muteWaitMs = desc->latency() * 2; 4518 } 4519 } 4520 } 4521 } 4522 } 4523 } 4524 4525 // temporary mute output if device selection changes to avoid volume bursts due to 4526 // different per device volumes 4527 if (outputDesc->isActive() && (device != prevDevice)) { 4528 if (muteWaitMs < outputDesc->latency() * 2) { 4529 muteWaitMs = outputDesc->latency() * 2; 4530 } 4531 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 4532 if (outputDesc->isStrategyActive((routing_strategy)i)) { 4533 setStrategyMute((routing_strategy)i, true, outputDesc->mIoHandle); 4534 // do tempMute unmute after twice the mute wait time 4535 setStrategyMute((routing_strategy)i, false, outputDesc->mIoHandle, 4536 muteWaitMs *2, device); 4537 } 4538 } 4539 } 4540 4541 // wait for the PCM output buffers to empty before proceeding with the rest of the command 4542 if (muteWaitMs > delayMs) { 4543 muteWaitMs -= delayMs; 4544 usleep(muteWaitMs * 1000); 4545 return muteWaitMs; 4546 } 4547 return 0; 4548} 4549 4550uint32_t AudioPolicyManager::setOutputDevice(audio_io_handle_t output, 4551 audio_devices_t device, 4552 bool force, 4553 int delayMs, 4554 audio_patch_handle_t *patchHandle, 4555 const char* address) 4556{ 4557 ALOGV("setOutputDevice() output %d device %04x delayMs %d", output, device, delayMs); 4558 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4559 AudioParameter param; 4560 uint32_t muteWaitMs; 4561 4562 if (outputDesc->isDuplicated()) { 4563 muteWaitMs = setOutputDevice(outputDesc->mOutput1->mIoHandle, device, force, delayMs); 4564 muteWaitMs += setOutputDevice(outputDesc->mOutput2->mIoHandle, device, force, delayMs); 4565 return muteWaitMs; 4566 } 4567 // no need to proceed if new device is not AUDIO_DEVICE_NONE and not supported by current 4568 // output profile 4569 if ((device != AUDIO_DEVICE_NONE) && 4570 ((device & outputDesc->mProfile->mSupportedDevices.types()) == 0)) { 4571 return 0; 4572 } 4573 4574 // filter devices according to output selected 4575 device = (audio_devices_t)(device & outputDesc->mProfile->mSupportedDevices.types()); 4576 4577 audio_devices_t prevDevice = outputDesc->mDevice; 4578 4579 ALOGV("setOutputDevice() prevDevice %04x", prevDevice); 4580 4581 if (device != AUDIO_DEVICE_NONE) { 4582 outputDesc->mDevice = device; 4583 } 4584 muteWaitMs = checkDeviceMuteStrategies(outputDesc, prevDevice, delayMs); 4585 4586 // Do not change the routing if: 4587 // the requested device is AUDIO_DEVICE_NONE 4588 // OR the requested device is the same as current device 4589 // AND force is not specified 4590 // AND the output is connected by a valid audio patch. 4591 // Doing this check here allows the caller to call setOutputDevice() without conditions 4592 if ((device == AUDIO_DEVICE_NONE || device == prevDevice) && !force && 4593 outputDesc->mPatchHandle != 0) { 4594 ALOGV("setOutputDevice() setting same device %04x or null device for output %d", 4595 device, output); 4596 return muteWaitMs; 4597 } 4598 4599 ALOGV("setOutputDevice() changing device"); 4600 4601 // do the routing 4602 if (device == AUDIO_DEVICE_NONE) { 4603 resetOutputDevice(output, delayMs, NULL); 4604 } else { 4605 DeviceVector deviceList = (address == NULL) ? 4606 mAvailableOutputDevices.getDevicesFromType(device) 4607 : mAvailableOutputDevices.getDevicesFromTypeAddr(device, String8(address)); 4608 if (!deviceList.isEmpty()) { 4609 struct audio_patch patch; 4610 outputDesc->toAudioPortConfig(&patch.sources[0]); 4611 patch.num_sources = 1; 4612 patch.num_sinks = 0; 4613 for (size_t i = 0; i < deviceList.size() && i < AUDIO_PATCH_PORTS_MAX; i++) { 4614 deviceList.itemAt(i)->toAudioPortConfig(&patch.sinks[i]); 4615 patch.num_sinks++; 4616 } 4617 ssize_t index; 4618 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 4619 index = mAudioPatches.indexOfKey(*patchHandle); 4620 } else { 4621 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4622 } 4623 sp< AudioPatch> patchDesc; 4624 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 4625 if (index >= 0) { 4626 patchDesc = mAudioPatches.valueAt(index); 4627 afPatchHandle = patchDesc->mAfPatchHandle; 4628 } 4629 4630 status_t status = mpClientInterface->createAudioPatch(&patch, 4631 &afPatchHandle, 4632 delayMs); 4633 ALOGV("setOutputDevice() createAudioPatch returned %d patchHandle %d" 4634 "num_sources %d num_sinks %d", 4635 status, afPatchHandle, patch.num_sources, patch.num_sinks); 4636 if (status == NO_ERROR) { 4637 if (index < 0) { 4638 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 4639 &patch, mUidCached); 4640 addAudioPatch(patchDesc->mHandle, patchDesc); 4641 } else { 4642 patchDesc->mPatch = patch; 4643 } 4644 patchDesc->mAfPatchHandle = afPatchHandle; 4645 patchDesc->mUid = mUidCached; 4646 if (patchHandle) { 4647 *patchHandle = patchDesc->mHandle; 4648 } 4649 outputDesc->mPatchHandle = patchDesc->mHandle; 4650 nextAudioPortGeneration(); 4651 mpClientInterface->onAudioPatchListUpdate(); 4652 } 4653 } 4654 4655 // inform all input as well 4656 for (size_t i = 0; i < mInputs.size(); i++) { 4657 const sp<AudioInputDescriptor> inputDescriptor = mInputs.valueAt(i); 4658 if (!isVirtualInputDevice(inputDescriptor->mDevice)) { 4659 AudioParameter inputCmd = AudioParameter(); 4660 ALOGV("%s: inform input %d of device:%d", __func__, 4661 inputDescriptor->mIoHandle, device); 4662 inputCmd.addInt(String8(AudioParameter::keyRouting),device); 4663 mpClientInterface->setParameters(inputDescriptor->mIoHandle, 4664 inputCmd.toString(), 4665 delayMs); 4666 } 4667 } 4668 } 4669 4670 // update stream volumes according to new device 4671 applyStreamVolumes(output, device, delayMs); 4672 4673 return muteWaitMs; 4674} 4675 4676status_t AudioPolicyManager::resetOutputDevice(audio_io_handle_t output, 4677 int delayMs, 4678 audio_patch_handle_t *patchHandle) 4679{ 4680 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4681 ssize_t index; 4682 if (patchHandle) { 4683 index = mAudioPatches.indexOfKey(*patchHandle); 4684 } else { 4685 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4686 } 4687 if (index < 0) { 4688 return INVALID_OPERATION; 4689 } 4690 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4691 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, delayMs); 4692 ALOGV("resetOutputDevice() releaseAudioPatch returned %d", status); 4693 outputDesc->mPatchHandle = 0; 4694 removeAudioPatch(patchDesc->mHandle); 4695 nextAudioPortGeneration(); 4696 mpClientInterface->onAudioPatchListUpdate(); 4697 return status; 4698} 4699 4700status_t AudioPolicyManager::setInputDevice(audio_io_handle_t input, 4701 audio_devices_t device, 4702 bool force, 4703 audio_patch_handle_t *patchHandle) 4704{ 4705 status_t status = NO_ERROR; 4706 4707 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4708 if ((device != AUDIO_DEVICE_NONE) && ((device != inputDesc->mDevice) || force)) { 4709 inputDesc->mDevice = device; 4710 4711 DeviceVector deviceList = mAvailableInputDevices.getDevicesFromType(device); 4712 if (!deviceList.isEmpty()) { 4713 struct audio_patch patch; 4714 inputDesc->toAudioPortConfig(&patch.sinks[0]); 4715 // AUDIO_SOURCE_HOTWORD is for internal use only: 4716 // handled as AUDIO_SOURCE_VOICE_RECOGNITION by the audio HAL 4717 if (patch.sinks[0].ext.mix.usecase.source == AUDIO_SOURCE_HOTWORD && 4718 !inputDesc->mIsSoundTrigger) { 4719 patch.sinks[0].ext.mix.usecase.source = AUDIO_SOURCE_VOICE_RECOGNITION; 4720 } 4721 patch.num_sinks = 1; 4722 //only one input device for now 4723 deviceList.itemAt(0)->toAudioPortConfig(&patch.sources[0]); 4724 patch.num_sources = 1; 4725 ssize_t index; 4726 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 4727 index = mAudioPatches.indexOfKey(*patchHandle); 4728 } else { 4729 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4730 } 4731 sp< AudioPatch> patchDesc; 4732 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 4733 if (index >= 0) { 4734 patchDesc = mAudioPatches.valueAt(index); 4735 afPatchHandle = patchDesc->mAfPatchHandle; 4736 } 4737 4738 status_t status = mpClientInterface->createAudioPatch(&patch, 4739 &afPatchHandle, 4740 0); 4741 ALOGV("setInputDevice() createAudioPatch returned %d patchHandle %d", 4742 status, afPatchHandle); 4743 if (status == NO_ERROR) { 4744 if (index < 0) { 4745 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 4746 &patch, mUidCached); 4747 addAudioPatch(patchDesc->mHandle, patchDesc); 4748 } else { 4749 patchDesc->mPatch = patch; 4750 } 4751 patchDesc->mAfPatchHandle = afPatchHandle; 4752 patchDesc->mUid = mUidCached; 4753 if (patchHandle) { 4754 *patchHandle = patchDesc->mHandle; 4755 } 4756 inputDesc->mPatchHandle = patchDesc->mHandle; 4757 nextAudioPortGeneration(); 4758 mpClientInterface->onAudioPatchListUpdate(); 4759 } 4760 } 4761 } 4762 return status; 4763} 4764 4765status_t AudioPolicyManager::resetInputDevice(audio_io_handle_t input, 4766 audio_patch_handle_t *patchHandle) 4767{ 4768 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4769 ssize_t index; 4770 if (patchHandle) { 4771 index = mAudioPatches.indexOfKey(*patchHandle); 4772 } else { 4773 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4774 } 4775 if (index < 0) { 4776 return INVALID_OPERATION; 4777 } 4778 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4779 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 4780 ALOGV("resetInputDevice() releaseAudioPatch returned %d", status); 4781 inputDesc->mPatchHandle = 0; 4782 removeAudioPatch(patchDesc->mHandle); 4783 nextAudioPortGeneration(); 4784 mpClientInterface->onAudioPatchListUpdate(); 4785 return status; 4786} 4787 4788sp<AudioPolicyManager::IOProfile> AudioPolicyManager::getInputProfile(audio_devices_t device, 4789 uint32_t& samplingRate, 4790 audio_format_t format, 4791 audio_channel_mask_t channelMask, 4792 audio_input_flags_t flags) 4793{ 4794 // Choose an input profile based on the requested capture parameters: select the first available 4795 // profile supporting all requested parameters. 4796 4797 for (size_t i = 0; i < mHwModules.size(); i++) 4798 { 4799 if (mHwModules[i]->mHandle == 0) { 4800 continue; 4801 } 4802 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 4803 { 4804 sp<IOProfile> profile = mHwModules[i]->mInputProfiles[j]; 4805 // profile->log(); 4806 if (profile->isCompatibleProfile(device, samplingRate, 4807 &samplingRate /*updatedSamplingRate*/, 4808 format, channelMask, (audio_output_flags_t) flags)) { 4809 return profile; 4810 } 4811 } 4812 } 4813 return NULL; 4814} 4815 4816audio_devices_t AudioPolicyManager::getDeviceForInputSource(audio_source_t inputSource) 4817{ 4818 uint32_t device = AUDIO_DEVICE_NONE; 4819 audio_devices_t availableDeviceTypes = mAvailableInputDevices.types() & 4820 ~AUDIO_DEVICE_BIT_IN; 4821 switch (inputSource) { 4822 case AUDIO_SOURCE_VOICE_UPLINK: 4823 if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) { 4824 device = AUDIO_DEVICE_IN_VOICE_CALL; 4825 break; 4826 } 4827 break; 4828 4829 case AUDIO_SOURCE_DEFAULT: 4830 case AUDIO_SOURCE_MIC: 4831 if (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_A2DP) { 4832 device = AUDIO_DEVICE_IN_BLUETOOTH_A2DP; 4833 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 4834 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 4835 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 4836 device = AUDIO_DEVICE_IN_USB_DEVICE; 4837 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 4838 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 4839 } 4840 break; 4841 4842 case AUDIO_SOURCE_VOICE_COMMUNICATION: 4843 // Allow only use of devices on primary input if in call and HAL does not support routing 4844 // to voice call path. 4845 if ((mPhoneState == AUDIO_MODE_IN_CALL) && 4846 (mAvailableOutputDevices.types() & AUDIO_DEVICE_OUT_TELEPHONY_TX) == 0) { 4847 availableDeviceTypes = availablePrimaryInputDevices() & ~AUDIO_DEVICE_BIT_IN; 4848 } 4849 4850 switch (mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]) { 4851 case AUDIO_POLICY_FORCE_BT_SCO: 4852 // if SCO device is requested but no SCO device is available, fall back to default case 4853 if (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) { 4854 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 4855 break; 4856 } 4857 // FALL THROUGH 4858 4859 default: // FORCE_NONE 4860 if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 4861 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 4862 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 4863 device = AUDIO_DEVICE_IN_USB_DEVICE; 4864 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 4865 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 4866 } 4867 break; 4868 4869 case AUDIO_POLICY_FORCE_SPEAKER: 4870 if (availableDeviceTypes & AUDIO_DEVICE_IN_BACK_MIC) { 4871 device = AUDIO_DEVICE_IN_BACK_MIC; 4872 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 4873 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 4874 } 4875 break; 4876 } 4877 break; 4878 4879 case AUDIO_SOURCE_VOICE_RECOGNITION: 4880 case AUDIO_SOURCE_HOTWORD: 4881 if (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO && 4882 availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) { 4883 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 4884 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 4885 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 4886 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 4887 device = AUDIO_DEVICE_IN_USB_DEVICE; 4888 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 4889 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 4890 } 4891 break; 4892 case AUDIO_SOURCE_CAMCORDER: 4893 if (availableDeviceTypes & AUDIO_DEVICE_IN_BACK_MIC) { 4894 device = AUDIO_DEVICE_IN_BACK_MIC; 4895 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 4896 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 4897 } 4898 break; 4899 case AUDIO_SOURCE_VOICE_DOWNLINK: 4900 case AUDIO_SOURCE_VOICE_CALL: 4901 if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) { 4902 device = AUDIO_DEVICE_IN_VOICE_CALL; 4903 } 4904 break; 4905 case AUDIO_SOURCE_REMOTE_SUBMIX: 4906 if (availableDeviceTypes & AUDIO_DEVICE_IN_REMOTE_SUBMIX) { 4907 device = AUDIO_DEVICE_IN_REMOTE_SUBMIX; 4908 } 4909 break; 4910 case AUDIO_SOURCE_FM_TUNER: 4911 if (availableDeviceTypes & AUDIO_DEVICE_IN_FM_TUNER) { 4912 device = AUDIO_DEVICE_IN_FM_TUNER; 4913 } 4914 break; 4915 default: 4916 ALOGW("getDeviceForInputSource() invalid input source %d", inputSource); 4917 break; 4918 } 4919 ALOGV("getDeviceForInputSource()input source %d, device %08x", inputSource, device); 4920 return device; 4921} 4922 4923bool AudioPolicyManager::isVirtualInputDevice(audio_devices_t device) 4924{ 4925 if ((device & AUDIO_DEVICE_BIT_IN) != 0) { 4926 device &= ~AUDIO_DEVICE_BIT_IN; 4927 if ((popcount(device) == 1) && ((device & ~APM_AUDIO_IN_DEVICE_VIRTUAL_ALL) == 0)) 4928 return true; 4929 } 4930 return false; 4931} 4932 4933bool AudioPolicyManager::deviceDistinguishesOnAddress(audio_devices_t device) { 4934 return ((device & APM_AUDIO_DEVICE_MATCH_ADDRESS_ALL) != 0); 4935} 4936 4937audio_io_handle_t AudioPolicyManager::getActiveInput(bool ignoreVirtualInputs) 4938{ 4939 for (size_t i = 0; i < mInputs.size(); i++) { 4940 const sp<AudioInputDescriptor> input_descriptor = mInputs.valueAt(i); 4941 if ((input_descriptor->mRefCount > 0) 4942 && (!ignoreVirtualInputs || !isVirtualInputDevice(input_descriptor->mDevice))) { 4943 return mInputs.keyAt(i); 4944 } 4945 } 4946 return 0; 4947} 4948 4949uint32_t AudioPolicyManager::activeInputsCount() const 4950{ 4951 uint32_t count = 0; 4952 for (size_t i = 0; i < mInputs.size(); i++) { 4953 const sp<AudioInputDescriptor> desc = mInputs.valueAt(i); 4954 if (desc->mRefCount > 0) { 4955 return count++; 4956 } 4957 } 4958 return count; 4959} 4960 4961 4962audio_devices_t AudioPolicyManager::getDeviceForVolume(audio_devices_t device) 4963{ 4964 if (device == AUDIO_DEVICE_NONE) { 4965 // this happens when forcing a route update and no track is active on an output. 4966 // In this case the returned category is not important. 4967 device = AUDIO_DEVICE_OUT_SPEAKER; 4968 } else if (popcount(device) > 1) { 4969 // Multiple device selection is either: 4970 // - speaker + one other device: give priority to speaker in this case. 4971 // - one A2DP device + another device: happens with duplicated output. In this case 4972 // retain the device on the A2DP output as the other must not correspond to an active 4973 // selection if not the speaker. 4974 // - HDMI-CEC system audio mode only output: give priority to available item in order. 4975 if (device & AUDIO_DEVICE_OUT_SPEAKER) { 4976 device = AUDIO_DEVICE_OUT_SPEAKER; 4977 } else if (device & AUDIO_DEVICE_OUT_HDMI_ARC) { 4978 device = AUDIO_DEVICE_OUT_HDMI_ARC; 4979 } else if (device & AUDIO_DEVICE_OUT_AUX_LINE) { 4980 device = AUDIO_DEVICE_OUT_AUX_LINE; 4981 } else if (device & AUDIO_DEVICE_OUT_SPDIF) { 4982 device = AUDIO_DEVICE_OUT_SPDIF; 4983 } else { 4984 device = (audio_devices_t)(device & AUDIO_DEVICE_OUT_ALL_A2DP); 4985 } 4986 } 4987 4988 /*SPEAKER_SAFE is an alias of SPEAKER for purposes of volume control*/ 4989 if (device == AUDIO_DEVICE_OUT_SPEAKER_SAFE) 4990 device = AUDIO_DEVICE_OUT_SPEAKER; 4991 4992 ALOGW_IF(popcount(device) != 1, 4993 "getDeviceForVolume() invalid device combination: %08x", 4994 device); 4995 4996 return device; 4997} 4998 4999AudioPolicyManager::device_category AudioPolicyManager::getDeviceCategory(audio_devices_t device) 5000{ 5001 switch(getDeviceForVolume(device)) { 5002 case AUDIO_DEVICE_OUT_EARPIECE: 5003 return DEVICE_CATEGORY_EARPIECE; 5004 case AUDIO_DEVICE_OUT_WIRED_HEADSET: 5005 case AUDIO_DEVICE_OUT_WIRED_HEADPHONE: 5006 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO: 5007 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET: 5008 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP: 5009 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES: 5010 return DEVICE_CATEGORY_HEADSET; 5011 case AUDIO_DEVICE_OUT_LINE: 5012 case AUDIO_DEVICE_OUT_AUX_DIGITAL: 5013 /*USB? Remote submix?*/ 5014 return DEVICE_CATEGORY_EXT_MEDIA; 5015 case AUDIO_DEVICE_OUT_SPEAKER: 5016 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT: 5017 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER: 5018 case AUDIO_DEVICE_OUT_USB_ACCESSORY: 5019 case AUDIO_DEVICE_OUT_USB_DEVICE: 5020 case AUDIO_DEVICE_OUT_REMOTE_SUBMIX: 5021 default: 5022 return DEVICE_CATEGORY_SPEAKER; 5023 } 5024} 5025 5026/* static */ 5027float AudioPolicyManager::volIndexToAmpl(audio_devices_t device, const StreamDescriptor& streamDesc, 5028 int indexInUi) 5029{ 5030 device_category deviceCategory = getDeviceCategory(device); 5031 const VolumeCurvePoint *curve = streamDesc.mVolumeCurve[deviceCategory]; 5032 5033 // the volume index in the UI is relative to the min and max volume indices for this stream type 5034 int nbSteps = 1 + curve[VOLMAX].mIndex - 5035 curve[VOLMIN].mIndex; 5036 int volIdx = (nbSteps * (indexInUi - streamDesc.mIndexMin)) / 5037 (streamDesc.mIndexMax - streamDesc.mIndexMin); 5038 5039 // find what part of the curve this index volume belongs to, or if it's out of bounds 5040 int segment = 0; 5041 if (volIdx < curve[VOLMIN].mIndex) { // out of bounds 5042 return 0.0f; 5043 } else if (volIdx < curve[VOLKNEE1].mIndex) { 5044 segment = 0; 5045 } else if (volIdx < curve[VOLKNEE2].mIndex) { 5046 segment = 1; 5047 } else if (volIdx <= curve[VOLMAX].mIndex) { 5048 segment = 2; 5049 } else { // out of bounds 5050 return 1.0f; 5051 } 5052 5053 // linear interpolation in the attenuation table in dB 5054 float decibels = curve[segment].mDBAttenuation + 5055 ((float)(volIdx - curve[segment].mIndex)) * 5056 ( (curve[segment+1].mDBAttenuation - 5057 curve[segment].mDBAttenuation) / 5058 ((float)(curve[segment+1].mIndex - 5059 curve[segment].mIndex)) ); 5060 5061 float amplification = exp( decibels * 0.115129f); // exp( dB * ln(10) / 20 ) 5062 5063 ALOGVV("VOLUME vol index=[%d %d %d], dB=[%.1f %.1f %.1f] ampl=%.5f", 5064 curve[segment].mIndex, volIdx, 5065 curve[segment+1].mIndex, 5066 curve[segment].mDBAttenuation, 5067 decibels, 5068 curve[segment+1].mDBAttenuation, 5069 amplification); 5070 5071 return amplification; 5072} 5073 5074const AudioPolicyManager::VolumeCurvePoint 5075 AudioPolicyManager::sDefaultVolumeCurve[AudioPolicyManager::VOLCNT] = { 5076 {1, -49.5f}, {33, -33.5f}, {66, -17.0f}, {100, 0.0f} 5077}; 5078 5079const AudioPolicyManager::VolumeCurvePoint 5080 AudioPolicyManager::sDefaultMediaVolumeCurve[AudioPolicyManager::VOLCNT] = { 5081 {1, -58.0f}, {20, -40.0f}, {60, -17.0f}, {100, 0.0f} 5082}; 5083 5084const AudioPolicyManager::VolumeCurvePoint 5085 AudioPolicyManager::sExtMediaSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 5086 {1, -58.0f}, {20, -40.0f}, {60, -21.0f}, {100, -10.0f} 5087}; 5088 5089const AudioPolicyManager::VolumeCurvePoint 5090 AudioPolicyManager::sSpeakerMediaVolumeCurve[AudioPolicyManager::VOLCNT] = { 5091 {1, -56.0f}, {20, -34.0f}, {60, -11.0f}, {100, 0.0f} 5092}; 5093 5094const AudioPolicyManager::VolumeCurvePoint 5095 AudioPolicyManager::sSpeakerMediaVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 5096 {1, -55.0f}, {20, -43.0f}, {86, -12.0f}, {100, 0.0f} 5097}; 5098 5099const AudioPolicyManager::VolumeCurvePoint 5100 AudioPolicyManager::sSpeakerSonificationVolumeCurve[AudioPolicyManager::VOLCNT] = { 5101 {1, -29.7f}, {33, -20.1f}, {66, -10.2f}, {100, 0.0f} 5102}; 5103 5104const AudioPolicyManager::VolumeCurvePoint 5105 AudioPolicyManager::sSpeakerSonificationVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 5106 {1, -35.7f}, {33, -26.1f}, {66, -13.2f}, {100, 0.0f} 5107}; 5108 5109// AUDIO_STREAM_SYSTEM, AUDIO_STREAM_ENFORCED_AUDIBLE and AUDIO_STREAM_DTMF volume tracks 5110// AUDIO_STREAM_RING on phones and AUDIO_STREAM_MUSIC on tablets. 5111// AUDIO_STREAM_DTMF tracks AUDIO_STREAM_VOICE_CALL while in call (See AudioService.java). 5112// The range is constrained between -24dB and -6dB over speaker and -30dB and -18dB over headset. 5113 5114const AudioPolicyManager::VolumeCurvePoint 5115 AudioPolicyManager::sDefaultSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 5116 {1, -24.0f}, {33, -18.0f}, {66, -12.0f}, {100, -6.0f} 5117}; 5118 5119const AudioPolicyManager::VolumeCurvePoint 5120 AudioPolicyManager::sDefaultSystemVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 5121 {1, -34.0f}, {33, -24.0f}, {66, -15.0f}, {100, -6.0f} 5122}; 5123 5124const AudioPolicyManager::VolumeCurvePoint 5125 AudioPolicyManager::sHeadsetSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 5126 {1, -30.0f}, {33, -26.0f}, {66, -22.0f}, {100, -18.0f} 5127}; 5128 5129const AudioPolicyManager::VolumeCurvePoint 5130 AudioPolicyManager::sDefaultVoiceVolumeCurve[AudioPolicyManager::VOLCNT] = { 5131 {0, -42.0f}, {33, -28.0f}, {66, -14.0f}, {100, 0.0f} 5132}; 5133 5134const AudioPolicyManager::VolumeCurvePoint 5135 AudioPolicyManager::sSpeakerVoiceVolumeCurve[AudioPolicyManager::VOLCNT] = { 5136 {0, -24.0f}, {33, -16.0f}, {66, -8.0f}, {100, 0.0f} 5137}; 5138 5139const AudioPolicyManager::VolumeCurvePoint 5140 AudioPolicyManager::sLinearVolumeCurve[AudioPolicyManager::VOLCNT] = { 5141 {0, -96.0f}, {33, -68.0f}, {66, -34.0f}, {100, 0.0f} 5142}; 5143 5144const AudioPolicyManager::VolumeCurvePoint 5145 AudioPolicyManager::sSilentVolumeCurve[AudioPolicyManager::VOLCNT] = { 5146 {0, -96.0f}, {1, -96.0f}, {2, -96.0f}, {100, -96.0f} 5147}; 5148 5149const AudioPolicyManager::VolumeCurvePoint 5150 AudioPolicyManager::sFullScaleVolumeCurve[AudioPolicyManager::VOLCNT] = { 5151 {0, 0.0f}, {1, 0.0f}, {2, 0.0f}, {100, 0.0f} 5152}; 5153 5154const AudioPolicyManager::VolumeCurvePoint 5155 *AudioPolicyManager::sVolumeProfiles[AUDIO_STREAM_CNT] 5156 [AudioPolicyManager::DEVICE_CATEGORY_CNT] = { 5157 { // AUDIO_STREAM_VOICE_CALL 5158 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 5159 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5160 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5161 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5162 }, 5163 { // AUDIO_STREAM_SYSTEM 5164 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 5165 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5166 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5167 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5168 }, 5169 { // AUDIO_STREAM_RING 5170 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 5171 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5172 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5173 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5174 }, 5175 { // AUDIO_STREAM_MUSIC 5176 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 5177 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5178 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5179 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5180 }, 5181 { // AUDIO_STREAM_ALARM 5182 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 5183 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5184 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5185 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5186 }, 5187 { // AUDIO_STREAM_NOTIFICATION 5188 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 5189 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5190 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5191 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5192 }, 5193 { // AUDIO_STREAM_BLUETOOTH_SCO 5194 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 5195 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5196 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5197 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5198 }, 5199 { // AUDIO_STREAM_ENFORCED_AUDIBLE 5200 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 5201 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5202 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5203 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5204 }, 5205 { // AUDIO_STREAM_DTMF 5206 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 5207 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5208 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5209 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5210 }, 5211 { // AUDIO_STREAM_TTS 5212 // "Transmitted Through Speaker": always silent except on DEVICE_CATEGORY_SPEAKER 5213 sSilentVolumeCurve, // DEVICE_CATEGORY_HEADSET 5214 sLinearVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5215 sSilentVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5216 sSilentVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5217 }, 5218 { // AUDIO_STREAM_ACCESSIBILITY 5219 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 5220 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5221 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5222 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5223 }, 5224 { // AUDIO_STREAM_REROUTING 5225 sFullScaleVolumeCurve, // DEVICE_CATEGORY_HEADSET 5226 sFullScaleVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5227 sFullScaleVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5228 sFullScaleVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5229 }, 5230 { // AUDIO_STREAM_PATCH 5231 sFullScaleVolumeCurve, // DEVICE_CATEGORY_HEADSET 5232 sFullScaleVolumeCurve, // DEVICE_CATEGORY_SPEAKER 5233 sFullScaleVolumeCurve, // DEVICE_CATEGORY_EARPIECE 5234 sFullScaleVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 5235 }, 5236}; 5237 5238void AudioPolicyManager::initializeVolumeCurves() 5239{ 5240 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 5241 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 5242 mStreams[i].mVolumeCurve[j] = 5243 sVolumeProfiles[i][j]; 5244 } 5245 } 5246 5247 // Check availability of DRC on speaker path: if available, override some of the speaker curves 5248 if (mSpeakerDrcEnabled) { 5249 mStreams[AUDIO_STREAM_SYSTEM].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5250 sDefaultSystemVolumeCurveDrc; 5251 mStreams[AUDIO_STREAM_RING].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5252 sSpeakerSonificationVolumeCurveDrc; 5253 mStreams[AUDIO_STREAM_ALARM].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5254 sSpeakerSonificationVolumeCurveDrc; 5255 mStreams[AUDIO_STREAM_NOTIFICATION].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5256 sSpeakerSonificationVolumeCurveDrc; 5257 mStreams[AUDIO_STREAM_MUSIC].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5258 sSpeakerMediaVolumeCurveDrc; 5259 mStreams[AUDIO_STREAM_ACCESSIBILITY].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 5260 sSpeakerMediaVolumeCurveDrc; 5261 } 5262} 5263 5264float AudioPolicyManager::computeVolume(audio_stream_type_t stream, 5265 int index, 5266 audio_io_handle_t output, 5267 audio_devices_t device) 5268{ 5269 float volume = 1.0; 5270 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 5271 StreamDescriptor &streamDesc = mStreams[stream]; 5272 5273 if (device == AUDIO_DEVICE_NONE) { 5274 device = outputDesc->device(); 5275 } 5276 5277 volume = volIndexToAmpl(device, streamDesc, index); 5278 5279 // if a headset is connected, apply the following rules to ring tones and notifications 5280 // to avoid sound level bursts in user's ears: 5281 // - always attenuate ring tones and notifications volume by 6dB 5282 // - if music is playing, always limit the volume to current music volume, 5283 // with a minimum threshold at -36dB so that notification is always perceived. 5284 const routing_strategy stream_strategy = getStrategy(stream); 5285 if ((device & (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP | 5286 AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES | 5287 AUDIO_DEVICE_OUT_WIRED_HEADSET | 5288 AUDIO_DEVICE_OUT_WIRED_HEADPHONE)) && 5289 ((stream_strategy == STRATEGY_SONIFICATION) 5290 || (stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL) 5291 || (stream == AUDIO_STREAM_SYSTEM) 5292 || ((stream_strategy == STRATEGY_ENFORCED_AUDIBLE) && 5293 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_NONE))) && 5294 streamDesc.mCanBeMuted) { 5295 volume *= SONIFICATION_HEADSET_VOLUME_FACTOR; 5296 // when the phone is ringing we must consider that music could have been paused just before 5297 // by the music application and behave as if music was active if the last music track was 5298 // just stopped 5299 if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY) || 5300 mLimitRingtoneVolume) { 5301 audio_devices_t musicDevice = getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/); 5302 float musicVol = computeVolume(AUDIO_STREAM_MUSIC, 5303 mStreams[AUDIO_STREAM_MUSIC].getVolumeIndex(musicDevice), 5304 output, 5305 musicDevice); 5306 float minVol = (musicVol > SONIFICATION_HEADSET_VOLUME_MIN) ? 5307 musicVol : SONIFICATION_HEADSET_VOLUME_MIN; 5308 if (volume > minVol) { 5309 volume = minVol; 5310 ALOGV("computeVolume limiting volume to %f musicVol %f", minVol, musicVol); 5311 } 5312 } 5313 } 5314 5315 return volume; 5316} 5317 5318status_t AudioPolicyManager::checkAndSetVolume(audio_stream_type_t stream, 5319 int index, 5320 audio_io_handle_t output, 5321 audio_devices_t device, 5322 int delayMs, 5323 bool force) 5324{ 5325 5326 // do not change actual stream volume if the stream is muted 5327 if (mOutputs.valueFor(output)->mMuteCount[stream] != 0) { 5328 ALOGVV("checkAndSetVolume() stream %d muted count %d", 5329 stream, mOutputs.valueFor(output)->mMuteCount[stream]); 5330 return NO_ERROR; 5331 } 5332 5333 // do not change in call volume if bluetooth is connected and vice versa 5334 if ((stream == AUDIO_STREAM_VOICE_CALL && 5335 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO) || 5336 (stream == AUDIO_STREAM_BLUETOOTH_SCO && 5337 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] != AUDIO_POLICY_FORCE_BT_SCO)) { 5338 ALOGV("checkAndSetVolume() cannot set stream %d volume with force use = %d for comm", 5339 stream, mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]); 5340 return INVALID_OPERATION; 5341 } 5342 5343 float volume = computeVolume(stream, index, output, device); 5344 // We actually change the volume if: 5345 // - the float value returned by computeVolume() changed 5346 // - the force flag is set 5347 if (volume != mOutputs.valueFor(output)->mCurVolume[stream] || 5348 force) { 5349 mOutputs.valueFor(output)->mCurVolume[stream] = volume; 5350 ALOGVV("checkAndSetVolume() for output %d stream %d, volume %f, delay %d", output, stream, volume, delayMs); 5351 // Force VOICE_CALL to track BLUETOOTH_SCO stream volume when bluetooth audio is 5352 // enabled 5353 if (stream == AUDIO_STREAM_BLUETOOTH_SCO) { 5354 mpClientInterface->setStreamVolume(AUDIO_STREAM_VOICE_CALL, volume, output, delayMs); 5355 } 5356 mpClientInterface->setStreamVolume(stream, volume, output, delayMs); 5357 } 5358 5359 if (stream == AUDIO_STREAM_VOICE_CALL || 5360 stream == AUDIO_STREAM_BLUETOOTH_SCO) { 5361 float voiceVolume; 5362 // Force voice volume to max for bluetooth SCO as volume is managed by the headset 5363 if (stream == AUDIO_STREAM_VOICE_CALL) { 5364 voiceVolume = (float)index/(float)mStreams[stream].mIndexMax; 5365 } else { 5366 voiceVolume = 1.0; 5367 } 5368 5369 if (voiceVolume != mLastVoiceVolume && output == mPrimaryOutput) { 5370 mpClientInterface->setVoiceVolume(voiceVolume, delayMs); 5371 mLastVoiceVolume = voiceVolume; 5372 } 5373 } 5374 5375 return NO_ERROR; 5376} 5377 5378void AudioPolicyManager::applyStreamVolumes(audio_io_handle_t output, 5379 audio_devices_t device, 5380 int delayMs, 5381 bool force) 5382{ 5383 ALOGVV("applyStreamVolumes() for output %d and device %x", output, device); 5384 5385 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 5386 if (stream == AUDIO_STREAM_PATCH) { 5387 continue; 5388 } 5389 checkAndSetVolume((audio_stream_type_t)stream, 5390 mStreams[stream].getVolumeIndex(device), 5391 output, 5392 device, 5393 delayMs, 5394 force); 5395 } 5396} 5397 5398void AudioPolicyManager::setStrategyMute(routing_strategy strategy, 5399 bool on, 5400 audio_io_handle_t output, 5401 int delayMs, 5402 audio_devices_t device) 5403{ 5404 ALOGVV("setStrategyMute() strategy %d, mute %d, output %d", strategy, on, output); 5405 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 5406 if (stream == AUDIO_STREAM_PATCH) { 5407 continue; 5408 } 5409 if (getStrategy((audio_stream_type_t)stream) == strategy) { 5410 setStreamMute((audio_stream_type_t)stream, on, output, delayMs, device); 5411 } 5412 } 5413} 5414 5415void AudioPolicyManager::setStreamMute(audio_stream_type_t stream, 5416 bool on, 5417 audio_io_handle_t output, 5418 int delayMs, 5419 audio_devices_t device) 5420{ 5421 StreamDescriptor &streamDesc = mStreams[stream]; 5422 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 5423 if (device == AUDIO_DEVICE_NONE) { 5424 device = outputDesc->device(); 5425 } 5426 5427 ALOGVV("setStreamMute() stream %d, mute %d, output %d, mMuteCount %d device %04x", 5428 stream, on, output, outputDesc->mMuteCount[stream], device); 5429 5430 if (on) { 5431 if (outputDesc->mMuteCount[stream] == 0) { 5432 if (streamDesc.mCanBeMuted && 5433 ((stream != AUDIO_STREAM_ENFORCED_AUDIBLE) || 5434 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_NONE))) { 5435 checkAndSetVolume(stream, 0, output, device, delayMs); 5436 } 5437 } 5438 // increment mMuteCount after calling checkAndSetVolume() so that volume change is not ignored 5439 outputDesc->mMuteCount[stream]++; 5440 } else { 5441 if (outputDesc->mMuteCount[stream] == 0) { 5442 ALOGV("setStreamMute() unmuting non muted stream!"); 5443 return; 5444 } 5445 if (--outputDesc->mMuteCount[stream] == 0) { 5446 checkAndSetVolume(stream, 5447 streamDesc.getVolumeIndex(device), 5448 output, 5449 device, 5450 delayMs); 5451 } 5452 } 5453} 5454 5455void AudioPolicyManager::handleIncallSonification(audio_stream_type_t stream, 5456 bool starting, bool stateChange) 5457{ 5458 // if the stream pertains to sonification strategy and we are in call we must 5459 // mute the stream if it is low visibility. If it is high visibility, we must play a tone 5460 // in the device used for phone strategy and play the tone if the selected device does not 5461 // interfere with the device used for phone strategy 5462 // if stateChange is true, we are called from setPhoneState() and we must mute or unmute as 5463 // many times as there are active tracks on the output 5464 const routing_strategy stream_strategy = getStrategy(stream); 5465 if ((stream_strategy == STRATEGY_SONIFICATION) || 5466 ((stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL))) { 5467 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 5468 ALOGV("handleIncallSonification() stream %d starting %d device %x stateChange %d", 5469 stream, starting, outputDesc->mDevice, stateChange); 5470 if (outputDesc->mRefCount[stream]) { 5471 int muteCount = 1; 5472 if (stateChange) { 5473 muteCount = outputDesc->mRefCount[stream]; 5474 } 5475 if (audio_is_low_visibility(stream)) { 5476 ALOGV("handleIncallSonification() low visibility, muteCount %d", muteCount); 5477 for (int i = 0; i < muteCount; i++) { 5478 setStreamMute(stream, starting, mPrimaryOutput); 5479 } 5480 } else { 5481 ALOGV("handleIncallSonification() high visibility"); 5482 if (outputDesc->device() & 5483 getDeviceForStrategy(STRATEGY_PHONE, true /*fromCache*/)) { 5484 ALOGV("handleIncallSonification() high visibility muted, muteCount %d", muteCount); 5485 for (int i = 0; i < muteCount; i++) { 5486 setStreamMute(stream, starting, mPrimaryOutput); 5487 } 5488 } 5489 if (starting) { 5490 mpClientInterface->startTone(AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION, 5491 AUDIO_STREAM_VOICE_CALL); 5492 } else { 5493 mpClientInterface->stopTone(); 5494 } 5495 } 5496 } 5497 } 5498} 5499 5500bool AudioPolicyManager::isInCall() 5501{ 5502 return isStateInCall(mPhoneState); 5503} 5504 5505bool AudioPolicyManager::isStateInCall(int state) { 5506 return ((state == AUDIO_MODE_IN_CALL) || 5507 (state == AUDIO_MODE_IN_COMMUNICATION)); 5508} 5509 5510uint32_t AudioPolicyManager::getMaxEffectsCpuLoad() 5511{ 5512 return MAX_EFFECTS_CPU_LOAD; 5513} 5514 5515uint32_t AudioPolicyManager::getMaxEffectsMemory() 5516{ 5517 return MAX_EFFECTS_MEMORY; 5518} 5519 5520 5521// --- AudioOutputDescriptor class implementation 5522 5523AudioPolicyManager::AudioOutputDescriptor::AudioOutputDescriptor( 5524 const sp<IOProfile>& profile) 5525 : mId(0), mIoHandle(0), mLatency(0), 5526 mFlags((audio_output_flags_t)0), mDevice(AUDIO_DEVICE_NONE), mPatchHandle(0), 5527 mOutput1(0), mOutput2(0), mProfile(profile), mDirectOpenCount(0) 5528{ 5529 // clear usage count for all stream types 5530 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 5531 mRefCount[i] = 0; 5532 mCurVolume[i] = -1.0; 5533 mMuteCount[i] = 0; 5534 mStopTime[i] = 0; 5535 } 5536 for (int i = 0; i < NUM_STRATEGIES; i++) { 5537 mStrategyMutedByDevice[i] = false; 5538 } 5539 if (profile != NULL) { 5540 mFlags = (audio_output_flags_t)profile->mFlags; 5541 mSamplingRate = profile->pickSamplingRate(); 5542 mFormat = profile->pickFormat(); 5543 mChannelMask = profile->pickChannelMask(); 5544 if (profile->mGains.size() > 0) { 5545 profile->mGains[0]->getDefaultConfig(&mGain); 5546 } 5547 } 5548} 5549 5550audio_devices_t AudioPolicyManager::AudioOutputDescriptor::device() const 5551{ 5552 if (isDuplicated()) { 5553 return (audio_devices_t)(mOutput1->mDevice | mOutput2->mDevice); 5554 } else { 5555 return mDevice; 5556 } 5557} 5558 5559uint32_t AudioPolicyManager::AudioOutputDescriptor::latency() 5560{ 5561 if (isDuplicated()) { 5562 return (mOutput1->mLatency > mOutput2->mLatency) ? mOutput1->mLatency : mOutput2->mLatency; 5563 } else { 5564 return mLatency; 5565 } 5566} 5567 5568bool AudioPolicyManager::AudioOutputDescriptor::sharesHwModuleWith( 5569 const sp<AudioOutputDescriptor> outputDesc) 5570{ 5571 if (isDuplicated()) { 5572 return mOutput1->sharesHwModuleWith(outputDesc) || mOutput2->sharesHwModuleWith(outputDesc); 5573 } else if (outputDesc->isDuplicated()){ 5574 return sharesHwModuleWith(outputDesc->mOutput1) || sharesHwModuleWith(outputDesc->mOutput2); 5575 } else { 5576 return (mProfile->mModule == outputDesc->mProfile->mModule); 5577 } 5578} 5579 5580void AudioPolicyManager::AudioOutputDescriptor::changeRefCount(audio_stream_type_t stream, 5581 int delta) 5582{ 5583 // forward usage count change to attached outputs 5584 if (isDuplicated()) { 5585 mOutput1->changeRefCount(stream, delta); 5586 mOutput2->changeRefCount(stream, delta); 5587 } 5588 if ((delta + (int)mRefCount[stream]) < 0) { 5589 ALOGW("changeRefCount() invalid delta %d for stream %d, refCount %d", 5590 delta, stream, mRefCount[stream]); 5591 mRefCount[stream] = 0; 5592 return; 5593 } 5594 mRefCount[stream] += delta; 5595 ALOGV("changeRefCount() stream %d, count %d", stream, mRefCount[stream]); 5596} 5597 5598audio_devices_t AudioPolicyManager::AudioOutputDescriptor::supportedDevices() 5599{ 5600 if (isDuplicated()) { 5601 return (audio_devices_t)(mOutput1->supportedDevices() | mOutput2->supportedDevices()); 5602 } else { 5603 return mProfile->mSupportedDevices.types() ; 5604 } 5605} 5606 5607bool AudioPolicyManager::AudioOutputDescriptor::isActive(uint32_t inPastMs) const 5608{ 5609 return isStrategyActive(NUM_STRATEGIES, inPastMs); 5610} 5611 5612bool AudioPolicyManager::AudioOutputDescriptor::isStrategyActive(routing_strategy strategy, 5613 uint32_t inPastMs, 5614 nsecs_t sysTime) const 5615{ 5616 if ((sysTime == 0) && (inPastMs != 0)) { 5617 sysTime = systemTime(); 5618 } 5619 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 5620 if (i == AUDIO_STREAM_PATCH) { 5621 continue; 5622 } 5623 if (((getStrategy((audio_stream_type_t)i) == strategy) || 5624 (NUM_STRATEGIES == strategy)) && 5625 isStreamActive((audio_stream_type_t)i, inPastMs, sysTime)) { 5626 return true; 5627 } 5628 } 5629 return false; 5630} 5631 5632bool AudioPolicyManager::AudioOutputDescriptor::isStreamActive(audio_stream_type_t stream, 5633 uint32_t inPastMs, 5634 nsecs_t sysTime) const 5635{ 5636 if (mRefCount[stream] != 0) { 5637 return true; 5638 } 5639 if (inPastMs == 0) { 5640 return false; 5641 } 5642 if (sysTime == 0) { 5643 sysTime = systemTime(); 5644 } 5645 if (ns2ms(sysTime - mStopTime[stream]) < inPastMs) { 5646 return true; 5647 } 5648 return false; 5649} 5650 5651void AudioPolicyManager::AudioOutputDescriptor::toAudioPortConfig( 5652 struct audio_port_config *dstConfig, 5653 const struct audio_port_config *srcConfig) const 5654{ 5655 ALOG_ASSERT(!isDuplicated(), "toAudioPortConfig() called on duplicated output %d", mIoHandle); 5656 5657 dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK| 5658 AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN; 5659 if (srcConfig != NULL) { 5660 dstConfig->config_mask |= srcConfig->config_mask; 5661 } 5662 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 5663 5664 dstConfig->id = mId; 5665 dstConfig->role = AUDIO_PORT_ROLE_SOURCE; 5666 dstConfig->type = AUDIO_PORT_TYPE_MIX; 5667 dstConfig->ext.mix.hw_module = mProfile->mModule->mHandle; 5668 dstConfig->ext.mix.handle = mIoHandle; 5669 dstConfig->ext.mix.usecase.stream = AUDIO_STREAM_DEFAULT; 5670} 5671 5672void AudioPolicyManager::AudioOutputDescriptor::toAudioPort( 5673 struct audio_port *port) const 5674{ 5675 ALOG_ASSERT(!isDuplicated(), "toAudioPort() called on duplicated output %d", mIoHandle); 5676 mProfile->toAudioPort(port); 5677 port->id = mId; 5678 toAudioPortConfig(&port->active_config); 5679 port->ext.mix.hw_module = mProfile->mModule->mHandle; 5680 port->ext.mix.handle = mIoHandle; 5681 port->ext.mix.latency_class = 5682 mFlags & AUDIO_OUTPUT_FLAG_FAST ? AUDIO_LATENCY_LOW : AUDIO_LATENCY_NORMAL; 5683} 5684 5685status_t AudioPolicyManager::AudioOutputDescriptor::dump(int fd) 5686{ 5687 const size_t SIZE = 256; 5688 char buffer[SIZE]; 5689 String8 result; 5690 5691 snprintf(buffer, SIZE, " ID: %d\n", mId); 5692 result.append(buffer); 5693 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 5694 result.append(buffer); 5695 snprintf(buffer, SIZE, " Format: %08x\n", mFormat); 5696 result.append(buffer); 5697 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 5698 result.append(buffer); 5699 snprintf(buffer, SIZE, " Latency: %d\n", mLatency); 5700 result.append(buffer); 5701 snprintf(buffer, SIZE, " Flags %08x\n", mFlags); 5702 result.append(buffer); 5703 snprintf(buffer, SIZE, " Devices %08x\n", device()); 5704 result.append(buffer); 5705 snprintf(buffer, SIZE, " Stream volume refCount muteCount\n"); 5706 result.append(buffer); 5707 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 5708 snprintf(buffer, SIZE, " %02d %.03f %02d %02d\n", 5709 i, mCurVolume[i], mRefCount[i], mMuteCount[i]); 5710 result.append(buffer); 5711 } 5712 write(fd, result.string(), result.size()); 5713 5714 return NO_ERROR; 5715} 5716 5717// --- AudioInputDescriptor class implementation 5718 5719AudioPolicyManager::AudioInputDescriptor::AudioInputDescriptor(const sp<IOProfile>& profile) 5720 : mId(0), mIoHandle(0), 5721 mDevice(AUDIO_DEVICE_NONE), mPatchHandle(0), mRefCount(0), 5722 mInputSource(AUDIO_SOURCE_DEFAULT), mProfile(profile), mIsSoundTrigger(false) 5723{ 5724 if (profile != NULL) { 5725 mSamplingRate = profile->pickSamplingRate(); 5726 mFormat = profile->pickFormat(); 5727 mChannelMask = profile->pickChannelMask(); 5728 if (profile->mGains.size() > 0) { 5729 profile->mGains[0]->getDefaultConfig(&mGain); 5730 } 5731 } 5732} 5733 5734void AudioPolicyManager::AudioInputDescriptor::toAudioPortConfig( 5735 struct audio_port_config *dstConfig, 5736 const struct audio_port_config *srcConfig) const 5737{ 5738 ALOG_ASSERT(mProfile != 0, 5739 "toAudioPortConfig() called on input with null profile %d", mIoHandle); 5740 dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK| 5741 AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN; 5742 if (srcConfig != NULL) { 5743 dstConfig->config_mask |= srcConfig->config_mask; 5744 } 5745 5746 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 5747 5748 dstConfig->id = mId; 5749 dstConfig->role = AUDIO_PORT_ROLE_SINK; 5750 dstConfig->type = AUDIO_PORT_TYPE_MIX; 5751 dstConfig->ext.mix.hw_module = mProfile->mModule->mHandle; 5752 dstConfig->ext.mix.handle = mIoHandle; 5753 dstConfig->ext.mix.usecase.source = mInputSource; 5754} 5755 5756void AudioPolicyManager::AudioInputDescriptor::toAudioPort( 5757 struct audio_port *port) const 5758{ 5759 ALOG_ASSERT(mProfile != 0, "toAudioPort() called on input with null profile %d", mIoHandle); 5760 5761 mProfile->toAudioPort(port); 5762 port->id = mId; 5763 toAudioPortConfig(&port->active_config); 5764 port->ext.mix.hw_module = mProfile->mModule->mHandle; 5765 port->ext.mix.handle = mIoHandle; 5766 port->ext.mix.latency_class = AUDIO_LATENCY_NORMAL; 5767} 5768 5769status_t AudioPolicyManager::AudioInputDescriptor::dump(int fd) 5770{ 5771 const size_t SIZE = 256; 5772 char buffer[SIZE]; 5773 String8 result; 5774 5775 snprintf(buffer, SIZE, " ID: %d\n", mId); 5776 result.append(buffer); 5777 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 5778 result.append(buffer); 5779 snprintf(buffer, SIZE, " Format: %d\n", mFormat); 5780 result.append(buffer); 5781 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 5782 result.append(buffer); 5783 snprintf(buffer, SIZE, " Devices %08x\n", mDevice); 5784 result.append(buffer); 5785 snprintf(buffer, SIZE, " Ref Count %d\n", mRefCount); 5786 result.append(buffer); 5787 snprintf(buffer, SIZE, " Open Ref Count %d\n", mOpenRefCount); 5788 result.append(buffer); 5789 5790 write(fd, result.string(), result.size()); 5791 5792 return NO_ERROR; 5793} 5794 5795// --- StreamDescriptor class implementation 5796 5797AudioPolicyManager::StreamDescriptor::StreamDescriptor() 5798 : mIndexMin(0), mIndexMax(1), mCanBeMuted(true) 5799{ 5800 mIndexCur.add(AUDIO_DEVICE_OUT_DEFAULT, 0); 5801} 5802 5803int AudioPolicyManager::StreamDescriptor::getVolumeIndex(audio_devices_t device) 5804{ 5805 device = AudioPolicyManager::getDeviceForVolume(device); 5806 // there is always a valid entry for AUDIO_DEVICE_OUT_DEFAULT 5807 if (mIndexCur.indexOfKey(device) < 0) { 5808 device = AUDIO_DEVICE_OUT_DEFAULT; 5809 } 5810 return mIndexCur.valueFor(device); 5811} 5812 5813void AudioPolicyManager::StreamDescriptor::dump(int fd) 5814{ 5815 const size_t SIZE = 256; 5816 char buffer[SIZE]; 5817 String8 result; 5818 5819 snprintf(buffer, SIZE, "%s %02d %02d ", 5820 mCanBeMuted ? "true " : "false", mIndexMin, mIndexMax); 5821 result.append(buffer); 5822 for (size_t i = 0; i < mIndexCur.size(); i++) { 5823 snprintf(buffer, SIZE, "%04x : %02d, ", 5824 mIndexCur.keyAt(i), 5825 mIndexCur.valueAt(i)); 5826 result.append(buffer); 5827 } 5828 result.append("\n"); 5829 5830 write(fd, result.string(), result.size()); 5831} 5832 5833// --- EffectDescriptor class implementation 5834 5835status_t AudioPolicyManager::EffectDescriptor::dump(int fd) 5836{ 5837 const size_t SIZE = 256; 5838 char buffer[SIZE]; 5839 String8 result; 5840 5841 snprintf(buffer, SIZE, " I/O: %d\n", mIo); 5842 result.append(buffer); 5843 snprintf(buffer, SIZE, " Strategy: %d\n", mStrategy); 5844 result.append(buffer); 5845 snprintf(buffer, SIZE, " Session: %d\n", mSession); 5846 result.append(buffer); 5847 snprintf(buffer, SIZE, " Name: %s\n", mDesc.name); 5848 result.append(buffer); 5849 snprintf(buffer, SIZE, " %s\n", mEnabled ? "Enabled" : "Disabled"); 5850 result.append(buffer); 5851 write(fd, result.string(), result.size()); 5852 5853 return NO_ERROR; 5854} 5855 5856// --- HwModule class implementation 5857 5858AudioPolicyManager::HwModule::HwModule(const char *name) 5859 : mName(strndup(name, AUDIO_HARDWARE_MODULE_ID_MAX_LEN)), 5860 mHalVersion(AUDIO_DEVICE_API_VERSION_MIN), mHandle(0) 5861{ 5862} 5863 5864AudioPolicyManager::HwModule::~HwModule() 5865{ 5866 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 5867 mOutputProfiles[i]->mSupportedDevices.clear(); 5868 } 5869 for (size_t i = 0; i < mInputProfiles.size(); i++) { 5870 mInputProfiles[i]->mSupportedDevices.clear(); 5871 } 5872 free((void *)mName); 5873} 5874 5875status_t AudioPolicyManager::HwModule::loadInput(cnode *root) 5876{ 5877 cnode *node = root->first_child; 5878 5879 sp<IOProfile> profile = new IOProfile(String8(root->name), AUDIO_PORT_ROLE_SINK, this); 5880 5881 while (node) { 5882 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) { 5883 profile->loadSamplingRates((char *)node->value); 5884 } else if (strcmp(node->name, FORMATS_TAG) == 0) { 5885 profile->loadFormats((char *)node->value); 5886 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 5887 profile->loadInChannels((char *)node->value); 5888 } else if (strcmp(node->name, DEVICES_TAG) == 0) { 5889 profile->mSupportedDevices.loadDevicesFromName((char *)node->value, 5890 mDeclaredDevices); 5891 } else if (strcmp(node->name, FLAGS_TAG) == 0) { 5892 profile->mFlags = parseInputFlagNames((char *)node->value); 5893 } else if (strcmp(node->name, GAINS_TAG) == 0) { 5894 profile->loadGains(node); 5895 } 5896 node = node->next; 5897 } 5898 ALOGW_IF(profile->mSupportedDevices.isEmpty(), 5899 "loadInput() invalid supported devices"); 5900 ALOGW_IF(profile->mChannelMasks.size() == 0, 5901 "loadInput() invalid supported channel masks"); 5902 ALOGW_IF(profile->mSamplingRates.size() == 0, 5903 "loadInput() invalid supported sampling rates"); 5904 ALOGW_IF(profile->mFormats.size() == 0, 5905 "loadInput() invalid supported formats"); 5906 if (!profile->mSupportedDevices.isEmpty() && 5907 (profile->mChannelMasks.size() != 0) && 5908 (profile->mSamplingRates.size() != 0) && 5909 (profile->mFormats.size() != 0)) { 5910 5911 ALOGV("loadInput() adding input Supported Devices %04x", 5912 profile->mSupportedDevices.types()); 5913 5914 mInputProfiles.add(profile); 5915 return NO_ERROR; 5916 } else { 5917 return BAD_VALUE; 5918 } 5919} 5920 5921status_t AudioPolicyManager::HwModule::loadOutput(cnode *root) 5922{ 5923 cnode *node = root->first_child; 5924 5925 sp<IOProfile> profile = new IOProfile(String8(root->name), AUDIO_PORT_ROLE_SOURCE, this); 5926 5927 while (node) { 5928 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) { 5929 profile->loadSamplingRates((char *)node->value); 5930 } else if (strcmp(node->name, FORMATS_TAG) == 0) { 5931 profile->loadFormats((char *)node->value); 5932 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 5933 profile->loadOutChannels((char *)node->value); 5934 } else if (strcmp(node->name, DEVICES_TAG) == 0) { 5935 profile->mSupportedDevices.loadDevicesFromName((char *)node->value, 5936 mDeclaredDevices); 5937 } else if (strcmp(node->name, FLAGS_TAG) == 0) { 5938 profile->mFlags = parseOutputFlagNames((char *)node->value); 5939 } else if (strcmp(node->name, GAINS_TAG) == 0) { 5940 profile->loadGains(node); 5941 } 5942 node = node->next; 5943 } 5944 ALOGW_IF(profile->mSupportedDevices.isEmpty(), 5945 "loadOutput() invalid supported devices"); 5946 ALOGW_IF(profile->mChannelMasks.size() == 0, 5947 "loadOutput() invalid supported channel masks"); 5948 ALOGW_IF(profile->mSamplingRates.size() == 0, 5949 "loadOutput() invalid supported sampling rates"); 5950 ALOGW_IF(profile->mFormats.size() == 0, 5951 "loadOutput() invalid supported formats"); 5952 if (!profile->mSupportedDevices.isEmpty() && 5953 (profile->mChannelMasks.size() != 0) && 5954 (profile->mSamplingRates.size() != 0) && 5955 (profile->mFormats.size() != 0)) { 5956 5957 ALOGV("loadOutput() adding output Supported Devices %04x, mFlags %04x", 5958 profile->mSupportedDevices.types(), profile->mFlags); 5959 5960 mOutputProfiles.add(profile); 5961 return NO_ERROR; 5962 } else { 5963 return BAD_VALUE; 5964 } 5965} 5966 5967status_t AudioPolicyManager::HwModule::loadDevice(cnode *root) 5968{ 5969 cnode *node = root->first_child; 5970 5971 audio_devices_t type = AUDIO_DEVICE_NONE; 5972 while (node) { 5973 if (strcmp(node->name, DEVICE_TYPE) == 0) { 5974 type = parseDeviceNames((char *)node->value); 5975 break; 5976 } 5977 node = node->next; 5978 } 5979 if (type == AUDIO_DEVICE_NONE || 5980 (!audio_is_input_device(type) && !audio_is_output_device(type))) { 5981 ALOGW("loadDevice() bad type %08x", type); 5982 return BAD_VALUE; 5983 } 5984 sp<DeviceDescriptor> deviceDesc = new DeviceDescriptor(String8(root->name), type); 5985 deviceDesc->mModule = this; 5986 5987 node = root->first_child; 5988 while (node) { 5989 if (strcmp(node->name, DEVICE_ADDRESS) == 0) { 5990 deviceDesc->mAddress = String8((char *)node->value); 5991 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 5992 if (audio_is_input_device(type)) { 5993 deviceDesc->loadInChannels((char *)node->value); 5994 } else { 5995 deviceDesc->loadOutChannels((char *)node->value); 5996 } 5997 } else if (strcmp(node->name, GAINS_TAG) == 0) { 5998 deviceDesc->loadGains(node); 5999 } 6000 node = node->next; 6001 } 6002 6003 ALOGV("loadDevice() adding device name %s type %08x address %s", 6004 deviceDesc->mName.string(), type, deviceDesc->mAddress.string()); 6005 6006 mDeclaredDevices.add(deviceDesc); 6007 6008 return NO_ERROR; 6009} 6010 6011void AudioPolicyManager::HwModule::dump(int fd) 6012{ 6013 const size_t SIZE = 256; 6014 char buffer[SIZE]; 6015 String8 result; 6016 6017 snprintf(buffer, SIZE, " - name: %s\n", mName); 6018 result.append(buffer); 6019 snprintf(buffer, SIZE, " - handle: %d\n", mHandle); 6020 result.append(buffer); 6021 snprintf(buffer, SIZE, " - version: %u.%u\n", mHalVersion >> 8, mHalVersion & 0xFF); 6022 result.append(buffer); 6023 write(fd, result.string(), result.size()); 6024 if (mOutputProfiles.size()) { 6025 write(fd, " - outputs:\n", strlen(" - outputs:\n")); 6026 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 6027 snprintf(buffer, SIZE, " output %zu:\n", i); 6028 write(fd, buffer, strlen(buffer)); 6029 mOutputProfiles[i]->dump(fd); 6030 } 6031 } 6032 if (mInputProfiles.size()) { 6033 write(fd, " - inputs:\n", strlen(" - inputs:\n")); 6034 for (size_t i = 0; i < mInputProfiles.size(); i++) { 6035 snprintf(buffer, SIZE, " input %zu:\n", i); 6036 write(fd, buffer, strlen(buffer)); 6037 mInputProfiles[i]->dump(fd); 6038 } 6039 } 6040 if (mDeclaredDevices.size()) { 6041 write(fd, " - devices:\n", strlen(" - devices:\n")); 6042 for (size_t i = 0; i < mDeclaredDevices.size(); i++) { 6043 mDeclaredDevices[i]->dump(fd, 4, i); 6044 } 6045 } 6046} 6047 6048// --- AudioPort class implementation 6049 6050 6051AudioPolicyManager::AudioPort::AudioPort(const String8& name, audio_port_type_t type, 6052 audio_port_role_t role, const sp<HwModule>& module) : 6053 mName(name), mType(type), mRole(role), mModule(module), mFlags(0) 6054{ 6055 mUseInChannelMask = ((type == AUDIO_PORT_TYPE_DEVICE) && (role == AUDIO_PORT_ROLE_SOURCE)) || 6056 ((type == AUDIO_PORT_TYPE_MIX) && (role == AUDIO_PORT_ROLE_SINK)); 6057} 6058 6059void AudioPolicyManager::AudioPort::toAudioPort(struct audio_port *port) const 6060{ 6061 port->role = mRole; 6062 port->type = mType; 6063 unsigned int i; 6064 for (i = 0; i < mSamplingRates.size() && i < AUDIO_PORT_MAX_SAMPLING_RATES; i++) { 6065 if (mSamplingRates[i] != 0) { 6066 port->sample_rates[i] = mSamplingRates[i]; 6067 } 6068 } 6069 port->num_sample_rates = i; 6070 for (i = 0; i < mChannelMasks.size() && i < AUDIO_PORT_MAX_CHANNEL_MASKS; i++) { 6071 if (mChannelMasks[i] != 0) { 6072 port->channel_masks[i] = mChannelMasks[i]; 6073 } 6074 } 6075 port->num_channel_masks = i; 6076 for (i = 0; i < mFormats.size() && i < AUDIO_PORT_MAX_FORMATS; i++) { 6077 if (mFormats[i] != 0) { 6078 port->formats[i] = mFormats[i]; 6079 } 6080 } 6081 port->num_formats = i; 6082 6083 ALOGV("AudioPort::toAudioPort() num gains %zu", mGains.size()); 6084 6085 for (i = 0; i < mGains.size() && i < AUDIO_PORT_MAX_GAINS; i++) { 6086 port->gains[i] = mGains[i]->mGain; 6087 } 6088 port->num_gains = i; 6089} 6090 6091void AudioPolicyManager::AudioPort::importAudioPort(const sp<AudioPort> port) { 6092 for (size_t k = 0 ; k < port->mSamplingRates.size() ; k++) { 6093 const uint32_t rate = port->mSamplingRates.itemAt(k); 6094 if (rate != 0) { // skip "dynamic" rates 6095 bool hasRate = false; 6096 for (size_t l = 0 ; l < mSamplingRates.size() ; l++) { 6097 if (rate == mSamplingRates.itemAt(l)) { 6098 hasRate = true; 6099 break; 6100 } 6101 } 6102 if (!hasRate) { // never import a sampling rate twice 6103 mSamplingRates.add(rate); 6104 } 6105 } 6106 } 6107 for (size_t k = 0 ; k < port->mChannelMasks.size() ; k++) { 6108 const audio_channel_mask_t mask = port->mChannelMasks.itemAt(k); 6109 if (mask != 0) { // skip "dynamic" masks 6110 bool hasMask = false; 6111 for (size_t l = 0 ; l < mChannelMasks.size() ; l++) { 6112 if (mask == mChannelMasks.itemAt(l)) { 6113 hasMask = true; 6114 break; 6115 } 6116 } 6117 if (!hasMask) { // never import a channel mask twice 6118 mChannelMasks.add(mask); 6119 } 6120 } 6121 } 6122 for (size_t k = 0 ; k < port->mFormats.size() ; k++) { 6123 const audio_format_t format = port->mFormats.itemAt(k); 6124 if (format != 0) { // skip "dynamic" formats 6125 bool hasFormat = false; 6126 for (size_t l = 0 ; l < mFormats.size() ; l++) { 6127 if (format == mFormats.itemAt(l)) { 6128 hasFormat = true; 6129 break; 6130 } 6131 } 6132 if (!hasFormat) { // never import a channel mask twice 6133 mFormats.add(format); 6134 } 6135 } 6136 } 6137 for (size_t k = 0 ; k < port->mGains.size() ; k++) { 6138 sp<AudioGain> gain = port->mGains.itemAt(k); 6139 if (gain != 0) { 6140 bool hasGain = false; 6141 for (size_t l = 0 ; l < mGains.size() ; l++) { 6142 if (gain == mGains.itemAt(l)) { 6143 hasGain = true; 6144 break; 6145 } 6146 } 6147 if (!hasGain) { // never import a gain twice 6148 mGains.add(gain); 6149 } 6150 } 6151 } 6152} 6153 6154void AudioPolicyManager::AudioPort::clearCapabilities() { 6155 mChannelMasks.clear(); 6156 mFormats.clear(); 6157 mSamplingRates.clear(); 6158 mGains.clear(); 6159} 6160 6161void AudioPolicyManager::AudioPort::loadSamplingRates(char *name) 6162{ 6163 char *str = strtok(name, "|"); 6164 6165 // by convention, "0' in the first entry in mSamplingRates indicates the supported sampling 6166 // rates should be read from the output stream after it is opened for the first time 6167 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 6168 mSamplingRates.add(0); 6169 return; 6170 } 6171 6172 while (str != NULL) { 6173 uint32_t rate = atoi(str); 6174 if (rate != 0) { 6175 ALOGV("loadSamplingRates() adding rate %d", rate); 6176 mSamplingRates.add(rate); 6177 } 6178 str = strtok(NULL, "|"); 6179 } 6180} 6181 6182void AudioPolicyManager::AudioPort::loadFormats(char *name) 6183{ 6184 char *str = strtok(name, "|"); 6185 6186 // by convention, "0' in the first entry in mFormats indicates the supported formats 6187 // should be read from the output stream after it is opened for the first time 6188 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 6189 mFormats.add(AUDIO_FORMAT_DEFAULT); 6190 return; 6191 } 6192 6193 while (str != NULL) { 6194 audio_format_t format = (audio_format_t)stringToEnum(sFormatNameToEnumTable, 6195 ARRAY_SIZE(sFormatNameToEnumTable), 6196 str); 6197 if (format != AUDIO_FORMAT_DEFAULT) { 6198 mFormats.add(format); 6199 } 6200 str = strtok(NULL, "|"); 6201 } 6202} 6203 6204void AudioPolicyManager::AudioPort::loadInChannels(char *name) 6205{ 6206 const char *str = strtok(name, "|"); 6207 6208 ALOGV("loadInChannels() %s", name); 6209 6210 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 6211 mChannelMasks.add(0); 6212 return; 6213 } 6214 6215 while (str != NULL) { 6216 audio_channel_mask_t channelMask = 6217 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable, 6218 ARRAY_SIZE(sInChannelsNameToEnumTable), 6219 str); 6220 if (channelMask != 0) { 6221 ALOGV("loadInChannels() adding channelMask %04x", channelMask); 6222 mChannelMasks.add(channelMask); 6223 } 6224 str = strtok(NULL, "|"); 6225 } 6226} 6227 6228void AudioPolicyManager::AudioPort::loadOutChannels(char *name) 6229{ 6230 const char *str = strtok(name, "|"); 6231 6232 ALOGV("loadOutChannels() %s", name); 6233 6234 // by convention, "0' in the first entry in mChannelMasks indicates the supported channel 6235 // masks should be read from the output stream after it is opened for the first time 6236 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 6237 mChannelMasks.add(0); 6238 return; 6239 } 6240 6241 while (str != NULL) { 6242 audio_channel_mask_t channelMask = 6243 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable, 6244 ARRAY_SIZE(sOutChannelsNameToEnumTable), 6245 str); 6246 if (channelMask != 0) { 6247 mChannelMasks.add(channelMask); 6248 } 6249 str = strtok(NULL, "|"); 6250 } 6251 return; 6252} 6253 6254audio_gain_mode_t AudioPolicyManager::AudioPort::loadGainMode(char *name) 6255{ 6256 const char *str = strtok(name, "|"); 6257 6258 ALOGV("loadGainMode() %s", name); 6259 audio_gain_mode_t mode = 0; 6260 while (str != NULL) { 6261 mode |= (audio_gain_mode_t)stringToEnum(sGainModeNameToEnumTable, 6262 ARRAY_SIZE(sGainModeNameToEnumTable), 6263 str); 6264 str = strtok(NULL, "|"); 6265 } 6266 return mode; 6267} 6268 6269void AudioPolicyManager::AudioPort::loadGain(cnode *root, int index) 6270{ 6271 cnode *node = root->first_child; 6272 6273 sp<AudioGain> gain = new AudioGain(index, mUseInChannelMask); 6274 6275 while (node) { 6276 if (strcmp(node->name, GAIN_MODE) == 0) { 6277 gain->mGain.mode = loadGainMode((char *)node->value); 6278 } else if (strcmp(node->name, GAIN_CHANNELS) == 0) { 6279 if (mUseInChannelMask) { 6280 gain->mGain.channel_mask = 6281 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable, 6282 ARRAY_SIZE(sInChannelsNameToEnumTable), 6283 (char *)node->value); 6284 } else { 6285 gain->mGain.channel_mask = 6286 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable, 6287 ARRAY_SIZE(sOutChannelsNameToEnumTable), 6288 (char *)node->value); 6289 } 6290 } else if (strcmp(node->name, GAIN_MIN_VALUE) == 0) { 6291 gain->mGain.min_value = atoi((char *)node->value); 6292 } else if (strcmp(node->name, GAIN_MAX_VALUE) == 0) { 6293 gain->mGain.max_value = atoi((char *)node->value); 6294 } else if (strcmp(node->name, GAIN_DEFAULT_VALUE) == 0) { 6295 gain->mGain.default_value = atoi((char *)node->value); 6296 } else if (strcmp(node->name, GAIN_STEP_VALUE) == 0) { 6297 gain->mGain.step_value = atoi((char *)node->value); 6298 } else if (strcmp(node->name, GAIN_MIN_RAMP_MS) == 0) { 6299 gain->mGain.min_ramp_ms = atoi((char *)node->value); 6300 } else if (strcmp(node->name, GAIN_MAX_RAMP_MS) == 0) { 6301 gain->mGain.max_ramp_ms = atoi((char *)node->value); 6302 } 6303 node = node->next; 6304 } 6305 6306 ALOGV("loadGain() adding new gain mode %08x channel mask %08x min mB %d max mB %d", 6307 gain->mGain.mode, gain->mGain.channel_mask, gain->mGain.min_value, gain->mGain.max_value); 6308 6309 if (gain->mGain.mode == 0) { 6310 return; 6311 } 6312 mGains.add(gain); 6313} 6314 6315void AudioPolicyManager::AudioPort::loadGains(cnode *root) 6316{ 6317 cnode *node = root->first_child; 6318 int index = 0; 6319 while (node) { 6320 ALOGV("loadGains() loading gain %s", node->name); 6321 loadGain(node, index++); 6322 node = node->next; 6323 } 6324} 6325 6326status_t AudioPolicyManager::AudioPort::checkExactSamplingRate(uint32_t samplingRate) const 6327{ 6328 if (mSamplingRates.isEmpty()) { 6329 return NO_ERROR; 6330 } 6331 6332 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 6333 if (mSamplingRates[i] == samplingRate) { 6334 return NO_ERROR; 6335 } 6336 } 6337 return BAD_VALUE; 6338} 6339 6340status_t AudioPolicyManager::AudioPort::checkCompatibleSamplingRate(uint32_t samplingRate, 6341 uint32_t *updatedSamplingRate) const 6342{ 6343 if (mSamplingRates.isEmpty()) { 6344 return NO_ERROR; 6345 } 6346 6347 // Search for the closest supported sampling rate that is above (preferred) 6348 // or below (acceptable) the desired sampling rate, within a permitted ratio. 6349 // The sampling rates do not need to be sorted in ascending order. 6350 ssize_t maxBelow = -1; 6351 ssize_t minAbove = -1; 6352 uint32_t candidate; 6353 for (size_t i = 0; i < mSamplingRates.size(); i++) { 6354 candidate = mSamplingRates[i]; 6355 if (candidate == samplingRate) { 6356 if (updatedSamplingRate != NULL) { 6357 *updatedSamplingRate = candidate; 6358 } 6359 return NO_ERROR; 6360 } 6361 // candidate < desired 6362 if (candidate < samplingRate) { 6363 if (maxBelow < 0 || candidate > mSamplingRates[maxBelow]) { 6364 maxBelow = i; 6365 } 6366 // candidate > desired 6367 } else { 6368 if (minAbove < 0 || candidate < mSamplingRates[minAbove]) { 6369 minAbove = i; 6370 } 6371 } 6372 } 6373 // This uses hard-coded knowledge about AudioFlinger resampling ratios. 6374 // TODO Move these assumptions out. 6375 static const uint32_t kMaxDownSampleRatio = 6; // beyond this aliasing occurs 6376 static const uint32_t kMaxUpSampleRatio = 256; // beyond this sample rate inaccuracies occur 6377 // due to approximation by an int32_t of the 6378 // phase increments 6379 // Prefer to down-sample from a higher sampling rate, as we get the desired frequency spectrum. 6380 if (minAbove >= 0) { 6381 candidate = mSamplingRates[minAbove]; 6382 if (candidate / kMaxDownSampleRatio <= samplingRate) { 6383 if (updatedSamplingRate != NULL) { 6384 *updatedSamplingRate = candidate; 6385 } 6386 return NO_ERROR; 6387 } 6388 } 6389 // But if we have to up-sample from a lower sampling rate, that's OK. 6390 if (maxBelow >= 0) { 6391 candidate = mSamplingRates[maxBelow]; 6392 if (candidate * kMaxUpSampleRatio >= samplingRate) { 6393 if (updatedSamplingRate != NULL) { 6394 *updatedSamplingRate = candidate; 6395 } 6396 return NO_ERROR; 6397 } 6398 } 6399 // leave updatedSamplingRate unmodified 6400 return BAD_VALUE; 6401} 6402 6403status_t AudioPolicyManager::AudioPort::checkExactChannelMask(audio_channel_mask_t channelMask) const 6404{ 6405 if (mChannelMasks.isEmpty()) { 6406 return NO_ERROR; 6407 } 6408 6409 for (size_t i = 0; i < mChannelMasks.size(); i++) { 6410 if (mChannelMasks[i] == channelMask) { 6411 return NO_ERROR; 6412 } 6413 } 6414 return BAD_VALUE; 6415} 6416 6417status_t AudioPolicyManager::AudioPort::checkCompatibleChannelMask(audio_channel_mask_t channelMask) 6418 const 6419{ 6420 if (mChannelMasks.isEmpty()) { 6421 return NO_ERROR; 6422 } 6423 6424 const bool isRecordThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SINK; 6425 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 6426 // FIXME Does not handle multi-channel automatic conversions yet 6427 audio_channel_mask_t supported = mChannelMasks[i]; 6428 if (supported == channelMask) { 6429 return NO_ERROR; 6430 } 6431 if (isRecordThread) { 6432 // This uses hard-coded knowledge that AudioFlinger can silently down-mix and up-mix. 6433 // FIXME Abstract this out to a table. 6434 if (((supported == AUDIO_CHANNEL_IN_FRONT_BACK || supported == AUDIO_CHANNEL_IN_STEREO) 6435 && channelMask == AUDIO_CHANNEL_IN_MONO) || 6436 (supported == AUDIO_CHANNEL_IN_MONO && (channelMask == AUDIO_CHANNEL_IN_FRONT_BACK 6437 || channelMask == AUDIO_CHANNEL_IN_STEREO))) { 6438 return NO_ERROR; 6439 } 6440 } 6441 } 6442 return BAD_VALUE; 6443} 6444 6445status_t AudioPolicyManager::AudioPort::checkFormat(audio_format_t format) const 6446{ 6447 if (mFormats.isEmpty()) { 6448 return NO_ERROR; 6449 } 6450 6451 for (size_t i = 0; i < mFormats.size(); i ++) { 6452 if (mFormats[i] == format) { 6453 return NO_ERROR; 6454 } 6455 } 6456 return BAD_VALUE; 6457} 6458 6459 6460uint32_t AudioPolicyManager::AudioPort::pickSamplingRate() const 6461{ 6462 // special case for uninitialized dynamic profile 6463 if (mSamplingRates.size() == 1 && mSamplingRates[0] == 0) { 6464 return 0; 6465 } 6466 6467 // For direct outputs, pick minimum sampling rate: this helps ensuring that the 6468 // channel count / sampling rate combination chosen will be supported by the connected 6469 // sink 6470 if ((mType == AUDIO_PORT_TYPE_MIX) && (mRole == AUDIO_PORT_ROLE_SOURCE) && 6471 (mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD))) { 6472 uint32_t samplingRate = UINT_MAX; 6473 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 6474 if ((mSamplingRates[i] < samplingRate) && (mSamplingRates[i] > 0)) { 6475 samplingRate = mSamplingRates[i]; 6476 } 6477 } 6478 return (samplingRate == UINT_MAX) ? 0 : samplingRate; 6479 } 6480 6481 uint32_t samplingRate = 0; 6482 uint32_t maxRate = MAX_MIXER_SAMPLING_RATE; 6483 6484 // For mixed output and inputs, use max mixer sampling rates. Do not 6485 // limit sampling rate otherwise 6486 if (mType != AUDIO_PORT_TYPE_MIX) { 6487 maxRate = UINT_MAX; 6488 } 6489 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 6490 if ((mSamplingRates[i] > samplingRate) && (mSamplingRates[i] <= maxRate)) { 6491 samplingRate = mSamplingRates[i]; 6492 } 6493 } 6494 return samplingRate; 6495} 6496 6497audio_channel_mask_t AudioPolicyManager::AudioPort::pickChannelMask() const 6498{ 6499 // special case for uninitialized dynamic profile 6500 if (mChannelMasks.size() == 1 && mChannelMasks[0] == 0) { 6501 return AUDIO_CHANNEL_NONE; 6502 } 6503 audio_channel_mask_t channelMask = AUDIO_CHANNEL_NONE; 6504 6505 // For direct outputs, pick minimum channel count: this helps ensuring that the 6506 // channel count / sampling rate combination chosen will be supported by the connected 6507 // sink 6508 if ((mType == AUDIO_PORT_TYPE_MIX) && (mRole == AUDIO_PORT_ROLE_SOURCE) && 6509 (mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD))) { 6510 uint32_t channelCount = UINT_MAX; 6511 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 6512 uint32_t cnlCount; 6513 if (mUseInChannelMask) { 6514 cnlCount = audio_channel_count_from_in_mask(mChannelMasks[i]); 6515 } else { 6516 cnlCount = audio_channel_count_from_out_mask(mChannelMasks[i]); 6517 } 6518 if ((cnlCount < channelCount) && (cnlCount > 0)) { 6519 channelMask = mChannelMasks[i]; 6520 channelCount = cnlCount; 6521 } 6522 } 6523 return channelMask; 6524 } 6525 6526 uint32_t channelCount = 0; 6527 uint32_t maxCount = MAX_MIXER_CHANNEL_COUNT; 6528 6529 // For mixed output and inputs, use max mixer channel count. Do not 6530 // limit channel count otherwise 6531 if (mType != AUDIO_PORT_TYPE_MIX) { 6532 maxCount = UINT_MAX; 6533 } 6534 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 6535 uint32_t cnlCount; 6536 if (mUseInChannelMask) { 6537 cnlCount = audio_channel_count_from_in_mask(mChannelMasks[i]); 6538 } else { 6539 cnlCount = audio_channel_count_from_out_mask(mChannelMasks[i]); 6540 } 6541 if ((cnlCount > channelCount) && (cnlCount <= maxCount)) { 6542 channelMask = mChannelMasks[i]; 6543 channelCount = cnlCount; 6544 } 6545 } 6546 return channelMask; 6547} 6548 6549/* format in order of increasing preference */ 6550const audio_format_t AudioPolicyManager::AudioPort::sPcmFormatCompareTable[] = { 6551 AUDIO_FORMAT_DEFAULT, 6552 AUDIO_FORMAT_PCM_16_BIT, 6553 AUDIO_FORMAT_PCM_8_24_BIT, 6554 AUDIO_FORMAT_PCM_24_BIT_PACKED, 6555 AUDIO_FORMAT_PCM_32_BIT, 6556 AUDIO_FORMAT_PCM_FLOAT, 6557}; 6558 6559int AudioPolicyManager::AudioPort::compareFormats(audio_format_t format1, 6560 audio_format_t format2) 6561{ 6562 // NOTE: AUDIO_FORMAT_INVALID is also considered not PCM and will be compared equal to any 6563 // compressed format and better than any PCM format. This is by design of pickFormat() 6564 if (!audio_is_linear_pcm(format1)) { 6565 if (!audio_is_linear_pcm(format2)) { 6566 return 0; 6567 } 6568 return 1; 6569 } 6570 if (!audio_is_linear_pcm(format2)) { 6571 return -1; 6572 } 6573 6574 int index1 = -1, index2 = -1; 6575 for (size_t i = 0; 6576 (i < ARRAY_SIZE(sPcmFormatCompareTable)) && ((index1 == -1) || (index2 == -1)); 6577 i ++) { 6578 if (sPcmFormatCompareTable[i] == format1) { 6579 index1 = i; 6580 } 6581 if (sPcmFormatCompareTable[i] == format2) { 6582 index2 = i; 6583 } 6584 } 6585 // format1 not found => index1 < 0 => format2 > format1 6586 // format2 not found => index2 < 0 => format2 < format1 6587 return index1 - index2; 6588} 6589 6590audio_format_t AudioPolicyManager::AudioPort::pickFormat() const 6591{ 6592 // special case for uninitialized dynamic profile 6593 if (mFormats.size() == 1 && mFormats[0] == 0) { 6594 return AUDIO_FORMAT_DEFAULT; 6595 } 6596 6597 audio_format_t format = AUDIO_FORMAT_DEFAULT; 6598 audio_format_t bestFormat = 6599 AudioPolicyManager::AudioPort::sPcmFormatCompareTable[ 6600 ARRAY_SIZE(AudioPolicyManager::AudioPort::sPcmFormatCompareTable) - 1]; 6601 // For mixed output and inputs, use best mixer output format. Do not 6602 // limit format otherwise 6603 if ((mType != AUDIO_PORT_TYPE_MIX) || 6604 ((mRole == AUDIO_PORT_ROLE_SOURCE) && 6605 (((mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)) != 0)))) { 6606 bestFormat = AUDIO_FORMAT_INVALID; 6607 } 6608 6609 for (size_t i = 0; i < mFormats.size(); i ++) { 6610 if ((compareFormats(mFormats[i], format) > 0) && 6611 (compareFormats(mFormats[i], bestFormat) <= 0)) { 6612 format = mFormats[i]; 6613 } 6614 } 6615 return format; 6616} 6617 6618status_t AudioPolicyManager::AudioPort::checkGain(const struct audio_gain_config *gainConfig, 6619 int index) const 6620{ 6621 if (index < 0 || (size_t)index >= mGains.size()) { 6622 return BAD_VALUE; 6623 } 6624 return mGains[index]->checkConfig(gainConfig); 6625} 6626 6627void AudioPolicyManager::AudioPort::dump(int fd, int spaces) const 6628{ 6629 const size_t SIZE = 256; 6630 char buffer[SIZE]; 6631 String8 result; 6632 6633 if (mName.size() != 0) { 6634 snprintf(buffer, SIZE, "%*s- name: %s\n", spaces, "", mName.string()); 6635 result.append(buffer); 6636 } 6637 6638 if (mSamplingRates.size() != 0) { 6639 snprintf(buffer, SIZE, "%*s- sampling rates: ", spaces, ""); 6640 result.append(buffer); 6641 for (size_t i = 0; i < mSamplingRates.size(); i++) { 6642 if (i == 0 && mSamplingRates[i] == 0) { 6643 snprintf(buffer, SIZE, "Dynamic"); 6644 } else { 6645 snprintf(buffer, SIZE, "%d", mSamplingRates[i]); 6646 } 6647 result.append(buffer); 6648 result.append(i == (mSamplingRates.size() - 1) ? "" : ", "); 6649 } 6650 result.append("\n"); 6651 } 6652 6653 if (mChannelMasks.size() != 0) { 6654 snprintf(buffer, SIZE, "%*s- channel masks: ", spaces, ""); 6655 result.append(buffer); 6656 for (size_t i = 0; i < mChannelMasks.size(); i++) { 6657 ALOGV("AudioPort::dump mChannelMasks %zu %08x", i, mChannelMasks[i]); 6658 6659 if (i == 0 && mChannelMasks[i] == 0) { 6660 snprintf(buffer, SIZE, "Dynamic"); 6661 } else { 6662 snprintf(buffer, SIZE, "0x%04x", mChannelMasks[i]); 6663 } 6664 result.append(buffer); 6665 result.append(i == (mChannelMasks.size() - 1) ? "" : ", "); 6666 } 6667 result.append("\n"); 6668 } 6669 6670 if (mFormats.size() != 0) { 6671 snprintf(buffer, SIZE, "%*s- formats: ", spaces, ""); 6672 result.append(buffer); 6673 for (size_t i = 0; i < mFormats.size(); i++) { 6674 const char *formatStr = enumToString(sFormatNameToEnumTable, 6675 ARRAY_SIZE(sFormatNameToEnumTable), 6676 mFormats[i]); 6677 if (i == 0 && strcmp(formatStr, "") == 0) { 6678 snprintf(buffer, SIZE, "Dynamic"); 6679 } else { 6680 snprintf(buffer, SIZE, "%s", formatStr); 6681 } 6682 result.append(buffer); 6683 result.append(i == (mFormats.size() - 1) ? "" : ", "); 6684 } 6685 result.append("\n"); 6686 } 6687 write(fd, result.string(), result.size()); 6688 if (mGains.size() != 0) { 6689 snprintf(buffer, SIZE, "%*s- gains:\n", spaces, ""); 6690 write(fd, buffer, strlen(buffer) + 1); 6691 result.append(buffer); 6692 for (size_t i = 0; i < mGains.size(); i++) { 6693 mGains[i]->dump(fd, spaces + 2, i); 6694 } 6695 } 6696} 6697 6698// --- AudioGain class implementation 6699 6700AudioPolicyManager::AudioGain::AudioGain(int index, bool useInChannelMask) 6701{ 6702 mIndex = index; 6703 mUseInChannelMask = useInChannelMask; 6704 memset(&mGain, 0, sizeof(struct audio_gain)); 6705} 6706 6707void AudioPolicyManager::AudioGain::getDefaultConfig(struct audio_gain_config *config) 6708{ 6709 config->index = mIndex; 6710 config->mode = mGain.mode; 6711 config->channel_mask = mGain.channel_mask; 6712 if ((mGain.mode & AUDIO_GAIN_MODE_JOINT) == AUDIO_GAIN_MODE_JOINT) { 6713 config->values[0] = mGain.default_value; 6714 } else { 6715 uint32_t numValues; 6716 if (mUseInChannelMask) { 6717 numValues = audio_channel_count_from_in_mask(mGain.channel_mask); 6718 } else { 6719 numValues = audio_channel_count_from_out_mask(mGain.channel_mask); 6720 } 6721 for (size_t i = 0; i < numValues; i++) { 6722 config->values[i] = mGain.default_value; 6723 } 6724 } 6725 if ((mGain.mode & AUDIO_GAIN_MODE_RAMP) == AUDIO_GAIN_MODE_RAMP) { 6726 config->ramp_duration_ms = mGain.min_ramp_ms; 6727 } 6728} 6729 6730status_t AudioPolicyManager::AudioGain::checkConfig(const struct audio_gain_config *config) 6731{ 6732 if ((config->mode & ~mGain.mode) != 0) { 6733 return BAD_VALUE; 6734 } 6735 if ((config->mode & AUDIO_GAIN_MODE_JOINT) == AUDIO_GAIN_MODE_JOINT) { 6736 if ((config->values[0] < mGain.min_value) || 6737 (config->values[0] > mGain.max_value)) { 6738 return BAD_VALUE; 6739 } 6740 } else { 6741 if ((config->channel_mask & ~mGain.channel_mask) != 0) { 6742 return BAD_VALUE; 6743 } 6744 uint32_t numValues; 6745 if (mUseInChannelMask) { 6746 numValues = audio_channel_count_from_in_mask(config->channel_mask); 6747 } else { 6748 numValues = audio_channel_count_from_out_mask(config->channel_mask); 6749 } 6750 for (size_t i = 0; i < numValues; i++) { 6751 if ((config->values[i] < mGain.min_value) || 6752 (config->values[i] > mGain.max_value)) { 6753 return BAD_VALUE; 6754 } 6755 } 6756 } 6757 if ((config->mode & AUDIO_GAIN_MODE_RAMP) == AUDIO_GAIN_MODE_RAMP) { 6758 if ((config->ramp_duration_ms < mGain.min_ramp_ms) || 6759 (config->ramp_duration_ms > mGain.max_ramp_ms)) { 6760 return BAD_VALUE; 6761 } 6762 } 6763 return NO_ERROR; 6764} 6765 6766void AudioPolicyManager::AudioGain::dump(int fd, int spaces, int index) const 6767{ 6768 const size_t SIZE = 256; 6769 char buffer[SIZE]; 6770 String8 result; 6771 6772 snprintf(buffer, SIZE, "%*sGain %d:\n", spaces, "", index+1); 6773 result.append(buffer); 6774 snprintf(buffer, SIZE, "%*s- mode: %08x\n", spaces, "", mGain.mode); 6775 result.append(buffer); 6776 snprintf(buffer, SIZE, "%*s- channel_mask: %08x\n", spaces, "", mGain.channel_mask); 6777 result.append(buffer); 6778 snprintf(buffer, SIZE, "%*s- min_value: %d mB\n", spaces, "", mGain.min_value); 6779 result.append(buffer); 6780 snprintf(buffer, SIZE, "%*s- max_value: %d mB\n", spaces, "", mGain.max_value); 6781 result.append(buffer); 6782 snprintf(buffer, SIZE, "%*s- default_value: %d mB\n", spaces, "", mGain.default_value); 6783 result.append(buffer); 6784 snprintf(buffer, SIZE, "%*s- step_value: %d mB\n", spaces, "", mGain.step_value); 6785 result.append(buffer); 6786 snprintf(buffer, SIZE, "%*s- min_ramp_ms: %d ms\n", spaces, "", mGain.min_ramp_ms); 6787 result.append(buffer); 6788 snprintf(buffer, SIZE, "%*s- max_ramp_ms: %d ms\n", spaces, "", mGain.max_ramp_ms); 6789 result.append(buffer); 6790 6791 write(fd, result.string(), result.size()); 6792} 6793 6794// --- AudioPortConfig class implementation 6795 6796AudioPolicyManager::AudioPortConfig::AudioPortConfig() 6797{ 6798 mSamplingRate = 0; 6799 mChannelMask = AUDIO_CHANNEL_NONE; 6800 mFormat = AUDIO_FORMAT_INVALID; 6801 mGain.index = -1; 6802} 6803 6804status_t AudioPolicyManager::AudioPortConfig::applyAudioPortConfig( 6805 const struct audio_port_config *config, 6806 struct audio_port_config *backupConfig) 6807{ 6808 struct audio_port_config localBackupConfig; 6809 status_t status = NO_ERROR; 6810 6811 localBackupConfig.config_mask = config->config_mask; 6812 toAudioPortConfig(&localBackupConfig); 6813 6814 sp<AudioPort> audioport = getAudioPort(); 6815 if (audioport == 0) { 6816 status = NO_INIT; 6817 goto exit; 6818 } 6819 if (config->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { 6820 status = audioport->checkExactSamplingRate(config->sample_rate); 6821 if (status != NO_ERROR) { 6822 goto exit; 6823 } 6824 mSamplingRate = config->sample_rate; 6825 } 6826 if (config->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { 6827 status = audioport->checkExactChannelMask(config->channel_mask); 6828 if (status != NO_ERROR) { 6829 goto exit; 6830 } 6831 mChannelMask = config->channel_mask; 6832 } 6833 if (config->config_mask & AUDIO_PORT_CONFIG_FORMAT) { 6834 status = audioport->checkFormat(config->format); 6835 if (status != NO_ERROR) { 6836 goto exit; 6837 } 6838 mFormat = config->format; 6839 } 6840 if (config->config_mask & AUDIO_PORT_CONFIG_GAIN) { 6841 status = audioport->checkGain(&config->gain, config->gain.index); 6842 if (status != NO_ERROR) { 6843 goto exit; 6844 } 6845 mGain = config->gain; 6846 } 6847 6848exit: 6849 if (status != NO_ERROR) { 6850 applyAudioPortConfig(&localBackupConfig); 6851 } 6852 if (backupConfig != NULL) { 6853 *backupConfig = localBackupConfig; 6854 } 6855 return status; 6856} 6857 6858void AudioPolicyManager::AudioPortConfig::toAudioPortConfig( 6859 struct audio_port_config *dstConfig, 6860 const struct audio_port_config *srcConfig) const 6861{ 6862 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { 6863 dstConfig->sample_rate = mSamplingRate; 6864 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE)) { 6865 dstConfig->sample_rate = srcConfig->sample_rate; 6866 } 6867 } else { 6868 dstConfig->sample_rate = 0; 6869 } 6870 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { 6871 dstConfig->channel_mask = mChannelMask; 6872 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK)) { 6873 dstConfig->channel_mask = srcConfig->channel_mask; 6874 } 6875 } else { 6876 dstConfig->channel_mask = AUDIO_CHANNEL_NONE; 6877 } 6878 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_FORMAT) { 6879 dstConfig->format = mFormat; 6880 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_FORMAT)) { 6881 dstConfig->format = srcConfig->format; 6882 } 6883 } else { 6884 dstConfig->format = AUDIO_FORMAT_INVALID; 6885 } 6886 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_GAIN) { 6887 dstConfig->gain = mGain; 6888 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_GAIN)) { 6889 dstConfig->gain = srcConfig->gain; 6890 } 6891 } else { 6892 dstConfig->gain.index = -1; 6893 } 6894 if (dstConfig->gain.index != -1) { 6895 dstConfig->config_mask |= AUDIO_PORT_CONFIG_GAIN; 6896 } else { 6897 dstConfig->config_mask &= ~AUDIO_PORT_CONFIG_GAIN; 6898 } 6899} 6900 6901// --- IOProfile class implementation 6902 6903AudioPolicyManager::IOProfile::IOProfile(const String8& name, audio_port_role_t role, 6904 const sp<HwModule>& module) 6905 : AudioPort(name, AUDIO_PORT_TYPE_MIX, role, module) 6906{ 6907} 6908 6909AudioPolicyManager::IOProfile::~IOProfile() 6910{ 6911} 6912 6913// checks if the IO profile is compatible with specified parameters. 6914// Sampling rate, format and channel mask must be specified in order to 6915// get a valid a match 6916bool AudioPolicyManager::IOProfile::isCompatibleProfile(audio_devices_t device, 6917 uint32_t samplingRate, 6918 uint32_t *updatedSamplingRate, 6919 audio_format_t format, 6920 audio_channel_mask_t channelMask, 6921 uint32_t flags) const 6922{ 6923 const bool isPlaybackThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SOURCE; 6924 const bool isRecordThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SINK; 6925 ALOG_ASSERT(isPlaybackThread != isRecordThread); 6926 6927 if ((mSupportedDevices.types() & device) != device) { 6928 return false; 6929 } 6930 6931 if (samplingRate == 0) { 6932 return false; 6933 } 6934 uint32_t myUpdatedSamplingRate = samplingRate; 6935 if (isPlaybackThread && checkExactSamplingRate(samplingRate) != NO_ERROR) { 6936 return false; 6937 } 6938 if (isRecordThread && checkCompatibleSamplingRate(samplingRate, &myUpdatedSamplingRate) != 6939 NO_ERROR) { 6940 return false; 6941 } 6942 6943 if (!audio_is_valid_format(format) || checkFormat(format) != NO_ERROR) { 6944 return false; 6945 } 6946 6947 if (isPlaybackThread && (!audio_is_output_channel(channelMask) || 6948 checkExactChannelMask(channelMask) != NO_ERROR)) { 6949 return false; 6950 } 6951 if (isRecordThread && (!audio_is_input_channel(channelMask) || 6952 checkCompatibleChannelMask(channelMask) != NO_ERROR)) { 6953 return false; 6954 } 6955 6956 if (isPlaybackThread && (mFlags & flags) != flags) { 6957 return false; 6958 } 6959 // The only input flag that is allowed to be different is the fast flag. 6960 // An existing fast stream is compatible with a normal track request. 6961 // An existing normal stream is compatible with a fast track request, 6962 // but the fast request will be denied by AudioFlinger and converted to normal track. 6963 if (isRecordThread && ((mFlags ^ flags) & 6964 ~AUDIO_INPUT_FLAG_FAST)) { 6965 return false; 6966 } 6967 6968 if (updatedSamplingRate != NULL) { 6969 *updatedSamplingRate = myUpdatedSamplingRate; 6970 } 6971 return true; 6972} 6973 6974void AudioPolicyManager::IOProfile::dump(int fd) 6975{ 6976 const size_t SIZE = 256; 6977 char buffer[SIZE]; 6978 String8 result; 6979 6980 AudioPort::dump(fd, 4); 6981 6982 snprintf(buffer, SIZE, " - flags: 0x%04x\n", mFlags); 6983 result.append(buffer); 6984 snprintf(buffer, SIZE, " - devices:\n"); 6985 result.append(buffer); 6986 write(fd, result.string(), result.size()); 6987 for (size_t i = 0; i < mSupportedDevices.size(); i++) { 6988 mSupportedDevices[i]->dump(fd, 6, i); 6989 } 6990} 6991 6992void AudioPolicyManager::IOProfile::log() 6993{ 6994 const size_t SIZE = 256; 6995 char buffer[SIZE]; 6996 String8 result; 6997 6998 ALOGV(" - sampling rates: "); 6999 for (size_t i = 0; i < mSamplingRates.size(); i++) { 7000 ALOGV(" %d", mSamplingRates[i]); 7001 } 7002 7003 ALOGV(" - channel masks: "); 7004 for (size_t i = 0; i < mChannelMasks.size(); i++) { 7005 ALOGV(" 0x%04x", mChannelMasks[i]); 7006 } 7007 7008 ALOGV(" - formats: "); 7009 for (size_t i = 0; i < mFormats.size(); i++) { 7010 ALOGV(" 0x%08x", mFormats[i]); 7011 } 7012 7013 ALOGV(" - devices: 0x%04x\n", mSupportedDevices.types()); 7014 ALOGV(" - flags: 0x%04x\n", mFlags); 7015} 7016 7017 7018// --- DeviceDescriptor implementation 7019 7020 7021AudioPolicyManager::DeviceDescriptor::DeviceDescriptor(const String8& name, audio_devices_t type) : 7022 AudioPort(name, AUDIO_PORT_TYPE_DEVICE, 7023 audio_is_output_device(type) ? AUDIO_PORT_ROLE_SINK : 7024 AUDIO_PORT_ROLE_SOURCE, 7025 NULL), 7026 mDeviceType(type), mAddress(""), mId(0) 7027{ 7028 if (mGains.size() > 0) { 7029 mGains[0]->getDefaultConfig(&mGain); 7030 } 7031} 7032 7033bool AudioPolicyManager::DeviceDescriptor::equals(const sp<DeviceDescriptor>& other) const 7034{ 7035 // Devices are considered equal if they: 7036 // - are of the same type (a device type cannot be AUDIO_DEVICE_NONE) 7037 // - have the same address or one device does not specify the address 7038 // - have the same channel mask or one device does not specify the channel mask 7039 return (mDeviceType == other->mDeviceType) && 7040 (mAddress == "" || other->mAddress == "" || mAddress == other->mAddress) && 7041 (mChannelMask == 0 || other->mChannelMask == 0 || 7042 mChannelMask == other->mChannelMask); 7043} 7044 7045void AudioPolicyManager::DeviceVector::refreshTypes() 7046{ 7047 mDeviceTypes = AUDIO_DEVICE_NONE; 7048 for(size_t i = 0; i < size(); i++) { 7049 mDeviceTypes |= itemAt(i)->mDeviceType; 7050 } 7051 ALOGV("DeviceVector::refreshTypes() mDeviceTypes %08x", mDeviceTypes); 7052} 7053 7054ssize_t AudioPolicyManager::DeviceVector::indexOf(const sp<DeviceDescriptor>& item) const 7055{ 7056 for(size_t i = 0; i < size(); i++) { 7057 if (item->equals(itemAt(i))) { 7058 return i; 7059 } 7060 } 7061 return -1; 7062} 7063 7064ssize_t AudioPolicyManager::DeviceVector::add(const sp<DeviceDescriptor>& item) 7065{ 7066 ssize_t ret = indexOf(item); 7067 7068 if (ret < 0) { 7069 ret = SortedVector::add(item); 7070 if (ret >= 0) { 7071 refreshTypes(); 7072 } 7073 } else { 7074 ALOGW("DeviceVector::add device %08x already in", item->mDeviceType); 7075 ret = -1; 7076 } 7077 return ret; 7078} 7079 7080ssize_t AudioPolicyManager::DeviceVector::remove(const sp<DeviceDescriptor>& item) 7081{ 7082 size_t i; 7083 ssize_t ret = indexOf(item); 7084 7085 if (ret < 0) { 7086 ALOGW("DeviceVector::remove device %08x not in", item->mDeviceType); 7087 } else { 7088 ret = SortedVector::removeAt(ret); 7089 if (ret >= 0) { 7090 refreshTypes(); 7091 } 7092 } 7093 return ret; 7094} 7095 7096void AudioPolicyManager::DeviceVector::loadDevicesFromType(audio_devices_t types) 7097{ 7098 DeviceVector deviceList; 7099 7100 uint32_t role_bit = AUDIO_DEVICE_BIT_IN & types; 7101 types &= ~role_bit; 7102 7103 while (types) { 7104 uint32_t i = 31 - __builtin_clz(types); 7105 uint32_t type = 1 << i; 7106 types &= ~type; 7107 add(new DeviceDescriptor(String8(""), type | role_bit)); 7108 } 7109} 7110 7111void AudioPolicyManager::DeviceVector::loadDevicesFromName(char *name, 7112 const DeviceVector& declaredDevices) 7113{ 7114 char *devName = strtok(name, "|"); 7115 while (devName != NULL) { 7116 if (strlen(devName) != 0) { 7117 audio_devices_t type = stringToEnum(sDeviceNameToEnumTable, 7118 ARRAY_SIZE(sDeviceNameToEnumTable), 7119 devName); 7120 if (type != AUDIO_DEVICE_NONE) { 7121 sp<DeviceDescriptor> dev = new DeviceDescriptor(String8(""), type); 7122 if (type == AUDIO_DEVICE_IN_REMOTE_SUBMIX) { 7123 dev->mAddress = String8("0"); 7124 } 7125 add(dev); 7126 } else { 7127 sp<DeviceDescriptor> deviceDesc = 7128 declaredDevices.getDeviceFromName(String8(devName)); 7129 if (deviceDesc != 0) { 7130 add(deviceDesc); 7131 } 7132 } 7133 } 7134 devName = strtok(NULL, "|"); 7135 } 7136} 7137 7138sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDevice( 7139 audio_devices_t type, String8 address) const 7140{ 7141 sp<DeviceDescriptor> device; 7142 for (size_t i = 0; i < size(); i++) { 7143 if (itemAt(i)->mDeviceType == type) { 7144 device = itemAt(i); 7145 if (itemAt(i)->mAddress = address) { 7146 break; 7147 } 7148 } 7149 } 7150 ALOGV("DeviceVector::getDevice() for type %d address %s found %p", 7151 type, address.string(), device.get()); 7152 return device; 7153} 7154 7155sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDeviceFromId( 7156 audio_port_handle_t id) const 7157{ 7158 sp<DeviceDescriptor> device; 7159 for (size_t i = 0; i < size(); i++) { 7160 ALOGV("DeviceVector::getDeviceFromId(%d) itemAt(%zu)->mId %d", id, i, itemAt(i)->mId); 7161 if (itemAt(i)->mId == id) { 7162 device = itemAt(i); 7163 break; 7164 } 7165 } 7166 return device; 7167} 7168 7169AudioPolicyManager::DeviceVector AudioPolicyManager::DeviceVector::getDevicesFromType( 7170 audio_devices_t type) const 7171{ 7172 DeviceVector devices; 7173 for (size_t i = 0; (i < size()) && (type != AUDIO_DEVICE_NONE); i++) { 7174 if (itemAt(i)->mDeviceType & type & ~AUDIO_DEVICE_BIT_IN) { 7175 devices.add(itemAt(i)); 7176 type &= ~itemAt(i)->mDeviceType; 7177 ALOGV("DeviceVector::getDevicesFromType() for type %x found %p", 7178 itemAt(i)->mDeviceType, itemAt(i).get()); 7179 } 7180 } 7181 return devices; 7182} 7183 7184AudioPolicyManager::DeviceVector AudioPolicyManager::DeviceVector::getDevicesFromTypeAddr( 7185 audio_devices_t type, String8 address) const 7186{ 7187 DeviceVector devices; 7188 //ALOGV(" looking for device=%x, addr=%s", type, address.string()); 7189 for (size_t i = 0; i < size(); i++) { 7190 //ALOGV(" at i=%d: device=%x, addr=%s", 7191 // i, itemAt(i)->mDeviceType, itemAt(i)->mAddress.string()); 7192 if (itemAt(i)->mDeviceType == type) { 7193 if (itemAt(i)->mAddress == address) { 7194 //ALOGV(" found matching address %s", address.string()); 7195 devices.add(itemAt(i)); 7196 } 7197 } 7198 } 7199 return devices; 7200} 7201 7202sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDeviceFromName( 7203 const String8& name) const 7204{ 7205 sp<DeviceDescriptor> device; 7206 for (size_t i = 0; i < size(); i++) { 7207 if (itemAt(i)->mName == name) { 7208 device = itemAt(i); 7209 break; 7210 } 7211 } 7212 return device; 7213} 7214 7215void AudioPolicyManager::DeviceDescriptor::toAudioPortConfig( 7216 struct audio_port_config *dstConfig, 7217 const struct audio_port_config *srcConfig) const 7218{ 7219 dstConfig->config_mask = AUDIO_PORT_CONFIG_CHANNEL_MASK|AUDIO_PORT_CONFIG_GAIN; 7220 if (srcConfig != NULL) { 7221 dstConfig->config_mask |= srcConfig->config_mask; 7222 } 7223 7224 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 7225 7226 dstConfig->id = mId; 7227 dstConfig->role = audio_is_output_device(mDeviceType) ? 7228 AUDIO_PORT_ROLE_SINK : AUDIO_PORT_ROLE_SOURCE; 7229 dstConfig->type = AUDIO_PORT_TYPE_DEVICE; 7230 dstConfig->ext.device.type = mDeviceType; 7231 dstConfig->ext.device.hw_module = mModule->mHandle; 7232 strncpy(dstConfig->ext.device.address, mAddress.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN); 7233} 7234 7235void AudioPolicyManager::DeviceDescriptor::toAudioPort(struct audio_port *port) const 7236{ 7237 ALOGV("DeviceDescriptor::toAudioPort() handle %d type %x", mId, mDeviceType); 7238 AudioPort::toAudioPort(port); 7239 port->id = mId; 7240 toAudioPortConfig(&port->active_config); 7241 port->ext.device.type = mDeviceType; 7242 port->ext.device.hw_module = mModule->mHandle; 7243 strncpy(port->ext.device.address, mAddress.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN); 7244} 7245 7246status_t AudioPolicyManager::DeviceDescriptor::dump(int fd, int spaces, int index) const 7247{ 7248 const size_t SIZE = 256; 7249 char buffer[SIZE]; 7250 String8 result; 7251 7252 snprintf(buffer, SIZE, "%*sDevice %d:\n", spaces, "", index+1); 7253 result.append(buffer); 7254 if (mId != 0) { 7255 snprintf(buffer, SIZE, "%*s- id: %2d\n", spaces, "", mId); 7256 result.append(buffer); 7257 } 7258 snprintf(buffer, SIZE, "%*s- type: %-48s\n", spaces, "", 7259 enumToString(sDeviceNameToEnumTable, 7260 ARRAY_SIZE(sDeviceNameToEnumTable), 7261 mDeviceType)); 7262 result.append(buffer); 7263 if (mAddress.size() != 0) { 7264 snprintf(buffer, SIZE, "%*s- address: %-32s\n", spaces, "", mAddress.string()); 7265 result.append(buffer); 7266 } 7267 write(fd, result.string(), result.size()); 7268 AudioPort::dump(fd, spaces); 7269 7270 return NO_ERROR; 7271} 7272 7273status_t AudioPolicyManager::AudioPatch::dump(int fd, int spaces, int index) const 7274{ 7275 const size_t SIZE = 256; 7276 char buffer[SIZE]; 7277 String8 result; 7278 7279 7280 snprintf(buffer, SIZE, "%*sAudio patch %d:\n", spaces, "", index+1); 7281 result.append(buffer); 7282 snprintf(buffer, SIZE, "%*s- handle: %2d\n", spaces, "", mHandle); 7283 result.append(buffer); 7284 snprintf(buffer, SIZE, "%*s- audio flinger handle: %2d\n", spaces, "", mAfPatchHandle); 7285 result.append(buffer); 7286 snprintf(buffer, SIZE, "%*s- owner uid: %2d\n", spaces, "", mUid); 7287 result.append(buffer); 7288 snprintf(buffer, SIZE, "%*s- %d sources:\n", spaces, "", mPatch.num_sources); 7289 result.append(buffer); 7290 for (size_t i = 0; i < mPatch.num_sources; i++) { 7291 if (mPatch.sources[i].type == AUDIO_PORT_TYPE_DEVICE) { 7292 snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "", 7293 mPatch.sources[i].id, enumToString(sDeviceNameToEnumTable, 7294 ARRAY_SIZE(sDeviceNameToEnumTable), 7295 mPatch.sources[i].ext.device.type)); 7296 } else { 7297 snprintf(buffer, SIZE, "%*s- Mix ID %d I/O handle %d\n", spaces + 2, "", 7298 mPatch.sources[i].id, mPatch.sources[i].ext.mix.handle); 7299 } 7300 result.append(buffer); 7301 } 7302 snprintf(buffer, SIZE, "%*s- %d sinks:\n", spaces, "", mPatch.num_sinks); 7303 result.append(buffer); 7304 for (size_t i = 0; i < mPatch.num_sinks; i++) { 7305 if (mPatch.sinks[i].type == AUDIO_PORT_TYPE_DEVICE) { 7306 snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "", 7307 mPatch.sinks[i].id, enumToString(sDeviceNameToEnumTable, 7308 ARRAY_SIZE(sDeviceNameToEnumTable), 7309 mPatch.sinks[i].ext.device.type)); 7310 } else { 7311 snprintf(buffer, SIZE, "%*s- Mix ID %d I/O handle %d\n", spaces + 2, "", 7312 mPatch.sinks[i].id, mPatch.sinks[i].ext.mix.handle); 7313 } 7314 result.append(buffer); 7315 } 7316 7317 write(fd, result.string(), result.size()); 7318 return NO_ERROR; 7319} 7320 7321// --- audio_policy.conf file parsing 7322 7323uint32_t AudioPolicyManager::parseOutputFlagNames(char *name) 7324{ 7325 uint32_t flag = 0; 7326 7327 // it is OK to cast name to non const here as we are not going to use it after 7328 // strtok() modifies it 7329 char *flagName = strtok(name, "|"); 7330 while (flagName != NULL) { 7331 if (strlen(flagName) != 0) { 7332 flag |= stringToEnum(sOutputFlagNameToEnumTable, 7333 ARRAY_SIZE(sOutputFlagNameToEnumTable), 7334 flagName); 7335 } 7336 flagName = strtok(NULL, "|"); 7337 } 7338 //force direct flag if offload flag is set: offloading implies a direct output stream 7339 // and all common behaviors are driven by checking only the direct flag 7340 // this should normally be set appropriately in the policy configuration file 7341 if ((flag & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 7342 flag |= AUDIO_OUTPUT_FLAG_DIRECT; 7343 } 7344 7345 return flag; 7346} 7347 7348uint32_t AudioPolicyManager::parseInputFlagNames(char *name) 7349{ 7350 uint32_t flag = 0; 7351 7352 // it is OK to cast name to non const here as we are not going to use it after 7353 // strtok() modifies it 7354 char *flagName = strtok(name, "|"); 7355 while (flagName != NULL) { 7356 if (strlen(flagName) != 0) { 7357 flag |= stringToEnum(sInputFlagNameToEnumTable, 7358 ARRAY_SIZE(sInputFlagNameToEnumTable), 7359 flagName); 7360 } 7361 flagName = strtok(NULL, "|"); 7362 } 7363 return flag; 7364} 7365 7366audio_devices_t AudioPolicyManager::parseDeviceNames(char *name) 7367{ 7368 uint32_t device = 0; 7369 7370 char *devName = strtok(name, "|"); 7371 while (devName != NULL) { 7372 if (strlen(devName) != 0) { 7373 device |= stringToEnum(sDeviceNameToEnumTable, 7374 ARRAY_SIZE(sDeviceNameToEnumTable), 7375 devName); 7376 } 7377 devName = strtok(NULL, "|"); 7378 } 7379 return device; 7380} 7381 7382void AudioPolicyManager::loadHwModule(cnode *root) 7383{ 7384 status_t status = NAME_NOT_FOUND; 7385 cnode *node; 7386 sp<HwModule> module = new HwModule(root->name); 7387 7388 node = config_find(root, DEVICES_TAG); 7389 if (node != NULL) { 7390 node = node->first_child; 7391 while (node) { 7392 ALOGV("loadHwModule() loading device %s", node->name); 7393 status_t tmpStatus = module->loadDevice(node); 7394 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 7395 status = tmpStatus; 7396 } 7397 node = node->next; 7398 } 7399 } 7400 node = config_find(root, OUTPUTS_TAG); 7401 if (node != NULL) { 7402 node = node->first_child; 7403 while (node) { 7404 ALOGV("loadHwModule() loading output %s", node->name); 7405 status_t tmpStatus = module->loadOutput(node); 7406 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 7407 status = tmpStatus; 7408 } 7409 node = node->next; 7410 } 7411 } 7412 node = config_find(root, INPUTS_TAG); 7413 if (node != NULL) { 7414 node = node->first_child; 7415 while (node) { 7416 ALOGV("loadHwModule() loading input %s", node->name); 7417 status_t tmpStatus = module->loadInput(node); 7418 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 7419 status = tmpStatus; 7420 } 7421 node = node->next; 7422 } 7423 } 7424 loadGlobalConfig(root, module); 7425 7426 if (status == NO_ERROR) { 7427 mHwModules.add(module); 7428 } 7429} 7430 7431void AudioPolicyManager::loadHwModules(cnode *root) 7432{ 7433 cnode *node = config_find(root, AUDIO_HW_MODULE_TAG); 7434 if (node == NULL) { 7435 return; 7436 } 7437 7438 node = node->first_child; 7439 while (node) { 7440 ALOGV("loadHwModules() loading module %s", node->name); 7441 loadHwModule(node); 7442 node = node->next; 7443 } 7444} 7445 7446void AudioPolicyManager::loadGlobalConfig(cnode *root, const sp<HwModule>& module) 7447{ 7448 cnode *node = config_find(root, GLOBAL_CONFIG_TAG); 7449 7450 if (node == NULL) { 7451 return; 7452 } 7453 DeviceVector declaredDevices; 7454 if (module != NULL) { 7455 declaredDevices = module->mDeclaredDevices; 7456 } 7457 7458 node = node->first_child; 7459 while (node) { 7460 if (strcmp(ATTACHED_OUTPUT_DEVICES_TAG, node->name) == 0) { 7461 mAvailableOutputDevices.loadDevicesFromName((char *)node->value, 7462 declaredDevices); 7463 ALOGV("loadGlobalConfig() Attached Output Devices %08x", 7464 mAvailableOutputDevices.types()); 7465 } else if (strcmp(DEFAULT_OUTPUT_DEVICE_TAG, node->name) == 0) { 7466 audio_devices_t device = (audio_devices_t)stringToEnum(sDeviceNameToEnumTable, 7467 ARRAY_SIZE(sDeviceNameToEnumTable), 7468 (char *)node->value); 7469 if (device != AUDIO_DEVICE_NONE) { 7470 mDefaultOutputDevice = new DeviceDescriptor(String8(""), device); 7471 } else { 7472 ALOGW("loadGlobalConfig() default device not specified"); 7473 } 7474 ALOGV("loadGlobalConfig() mDefaultOutputDevice %08x", mDefaultOutputDevice->mDeviceType); 7475 } else if (strcmp(ATTACHED_INPUT_DEVICES_TAG, node->name) == 0) { 7476 mAvailableInputDevices.loadDevicesFromName((char *)node->value, 7477 declaredDevices); 7478 ALOGV("loadGlobalConfig() Available InputDevices %08x", mAvailableInputDevices.types()); 7479 } else if (strcmp(SPEAKER_DRC_ENABLED_TAG, node->name) == 0) { 7480 mSpeakerDrcEnabled = stringToBool((char *)node->value); 7481 ALOGV("loadGlobalConfig() mSpeakerDrcEnabled = %d", mSpeakerDrcEnabled); 7482 } else if (strcmp(AUDIO_HAL_VERSION_TAG, node->name) == 0) { 7483 uint32_t major, minor; 7484 sscanf((char *)node->value, "%u.%u", &major, &minor); 7485 module->mHalVersion = HARDWARE_DEVICE_API_VERSION(major, minor); 7486 ALOGV("loadGlobalConfig() mHalVersion = %04x major %u minor %u", 7487 module->mHalVersion, major, minor); 7488 } 7489 node = node->next; 7490 } 7491} 7492 7493status_t AudioPolicyManager::loadAudioPolicyConfig(const char *path) 7494{ 7495 cnode *root; 7496 char *data; 7497 7498 data = (char *)load_file(path, NULL); 7499 if (data == NULL) { 7500 return -ENODEV; 7501 } 7502 root = config_node("", ""); 7503 config_load(root, data); 7504 7505 loadHwModules(root); 7506 // legacy audio_policy.conf files have one global_configuration section 7507 loadGlobalConfig(root, getModuleFromName(AUDIO_HARDWARE_MODULE_ID_PRIMARY)); 7508 config_free(root); 7509 free(root); 7510 free(data); 7511 7512 ALOGI("loadAudioPolicyConfig() loaded %s\n", path); 7513 7514 return NO_ERROR; 7515} 7516 7517void AudioPolicyManager::defaultAudioPolicyConfig(void) 7518{ 7519 sp<HwModule> module; 7520 sp<IOProfile> profile; 7521 sp<DeviceDescriptor> defaultInputDevice = new DeviceDescriptor(String8(""), 7522 AUDIO_DEVICE_IN_BUILTIN_MIC); 7523 mAvailableOutputDevices.add(mDefaultOutputDevice); 7524 mAvailableInputDevices.add(defaultInputDevice); 7525 7526 module = new HwModule("primary"); 7527 7528 profile = new IOProfile(String8("primary"), AUDIO_PORT_ROLE_SOURCE, module); 7529 profile->mSamplingRates.add(44100); 7530 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 7531 profile->mChannelMasks.add(AUDIO_CHANNEL_OUT_STEREO); 7532 profile->mSupportedDevices.add(mDefaultOutputDevice); 7533 profile->mFlags = AUDIO_OUTPUT_FLAG_PRIMARY; 7534 module->mOutputProfiles.add(profile); 7535 7536 profile = new IOProfile(String8("primary"), AUDIO_PORT_ROLE_SINK, module); 7537 profile->mSamplingRates.add(8000); 7538 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 7539 profile->mChannelMasks.add(AUDIO_CHANNEL_IN_MONO); 7540 profile->mSupportedDevices.add(defaultInputDevice); 7541 module->mInputProfiles.add(profile); 7542 7543 mHwModules.add(module); 7544} 7545 7546audio_stream_type_t AudioPolicyManager::streamTypefromAttributesInt(const audio_attributes_t *attr) 7547{ 7548 // flags to stream type mapping 7549 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 7550 return AUDIO_STREAM_ENFORCED_AUDIBLE; 7551 } 7552 if ((attr->flags & AUDIO_FLAG_SCO) == AUDIO_FLAG_SCO) { 7553 return AUDIO_STREAM_BLUETOOTH_SCO; 7554 } 7555 7556 // usage to stream type mapping 7557 switch (attr->usage) { 7558 case AUDIO_USAGE_MEDIA: 7559 case AUDIO_USAGE_GAME: 7560 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 7561 return AUDIO_STREAM_MUSIC; 7562 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 7563 if (isStreamActive(AUDIO_STREAM_ALARM)) { 7564 return AUDIO_STREAM_ALARM; 7565 } 7566 if (isStreamActive(AUDIO_STREAM_RING)) { 7567 return AUDIO_STREAM_RING; 7568 } 7569 if (isInCall()) { 7570 return AUDIO_STREAM_VOICE_CALL; 7571 } 7572 return AUDIO_STREAM_ACCESSIBILITY; 7573 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 7574 return AUDIO_STREAM_SYSTEM; 7575 case AUDIO_USAGE_VOICE_COMMUNICATION: 7576 return AUDIO_STREAM_VOICE_CALL; 7577 7578 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 7579 return AUDIO_STREAM_DTMF; 7580 7581 case AUDIO_USAGE_ALARM: 7582 return AUDIO_STREAM_ALARM; 7583 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 7584 return AUDIO_STREAM_RING; 7585 7586 case AUDIO_USAGE_NOTIFICATION: 7587 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 7588 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 7589 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 7590 case AUDIO_USAGE_NOTIFICATION_EVENT: 7591 return AUDIO_STREAM_NOTIFICATION; 7592 7593 case AUDIO_USAGE_UNKNOWN: 7594 default: 7595 return AUDIO_STREAM_MUSIC; 7596 } 7597} 7598 7599bool AudioPolicyManager::isValidAttributes(const audio_attributes_t *paa) { 7600 // has flags that map to a strategy? 7601 if ((paa->flags & (AUDIO_FLAG_AUDIBILITY_ENFORCED | AUDIO_FLAG_SCO | AUDIO_FLAG_BEACON)) != 0) { 7602 return true; 7603 } 7604 7605 // has known usage? 7606 switch (paa->usage) { 7607 case AUDIO_USAGE_UNKNOWN: 7608 case AUDIO_USAGE_MEDIA: 7609 case AUDIO_USAGE_VOICE_COMMUNICATION: 7610 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 7611 case AUDIO_USAGE_ALARM: 7612 case AUDIO_USAGE_NOTIFICATION: 7613 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 7614 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 7615 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 7616 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 7617 case AUDIO_USAGE_NOTIFICATION_EVENT: 7618 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 7619 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 7620 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 7621 case AUDIO_USAGE_GAME: 7622 break; 7623 default: 7624 return false; 7625 } 7626 return true; 7627} 7628 7629}; // namespace android 7630