AudioPolicyManager.cpp revision 828bcffa0d5f73461c6c1ba4ef6d3da704c27b7e
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 30// A device mask for all audio output devices that are considered "remote" when evaluating 31// active output devices in isStreamActiveRemotely() 32#define APM_AUDIO_OUT_DEVICE_REMOTE_ALL AUDIO_DEVICE_OUT_REMOTE_SUBMIX 33// A device mask for all audio input and output devices where matching inputs/outputs on device 34// type alone is not enough: the address must match too 35#define APM_AUDIO_DEVICE_MATCH_ADDRESS_ALL (AUDIO_DEVICE_IN_REMOTE_SUBMIX | \ 36 AUDIO_DEVICE_OUT_REMOTE_SUBMIX) 37 38#include <inttypes.h> 39#include <math.h> 40 41#include <cutils/properties.h> 42#include <utils/Log.h> 43#include <hardware/audio.h> 44#include <hardware/audio_effect.h> 45#include <media/AudioParameter.h> 46#include <soundtrigger/SoundTrigger.h> 47#include "AudioPolicyManager.h" 48#include "audio_policy_conf.h" 49 50namespace android { 51 52// ---------------------------------------------------------------------------- 53// Definitions for audio_policy.conf file parsing 54// ---------------------------------------------------------------------------- 55 56struct StringToEnum { 57 const char *name; 58 uint32_t value; 59}; 60 61#define STRING_TO_ENUM(string) { #string, string } 62#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) 63 64const StringToEnum sDeviceNameToEnumTable[] = { 65 STRING_TO_ENUM(AUDIO_DEVICE_OUT_EARPIECE), 66 STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPEAKER), 67 STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADSET), 68 STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADPHONE), 69 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO), 70 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET), 71 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT), 72 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_SCO), 73 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP), 74 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES), 75 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER), 76 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_A2DP), 77 STRING_TO_ENUM(AUDIO_DEVICE_OUT_AUX_DIGITAL), 78 STRING_TO_ENUM(AUDIO_DEVICE_OUT_HDMI), 79 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET), 80 STRING_TO_ENUM(AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET), 81 STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_ACCESSORY), 82 STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_DEVICE), 83 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_USB), 84 STRING_TO_ENUM(AUDIO_DEVICE_OUT_REMOTE_SUBMIX), 85 STRING_TO_ENUM(AUDIO_DEVICE_OUT_TELEPHONY_TX), 86 STRING_TO_ENUM(AUDIO_DEVICE_OUT_LINE), 87 STRING_TO_ENUM(AUDIO_DEVICE_OUT_HDMI_ARC), 88 STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPDIF), 89 STRING_TO_ENUM(AUDIO_DEVICE_OUT_FM), 90 STRING_TO_ENUM(AUDIO_DEVICE_OUT_AUX_LINE), 91 STRING_TO_ENUM(AUDIO_DEVICE_IN_AMBIENT), 92 STRING_TO_ENUM(AUDIO_DEVICE_IN_BUILTIN_MIC), 93 STRING_TO_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET), 94 STRING_TO_ENUM(AUDIO_DEVICE_IN_ALL_SCO), 95 STRING_TO_ENUM(AUDIO_DEVICE_IN_WIRED_HEADSET), 96 STRING_TO_ENUM(AUDIO_DEVICE_IN_AUX_DIGITAL), 97 STRING_TO_ENUM(AUDIO_DEVICE_IN_HDMI), 98 STRING_TO_ENUM(AUDIO_DEVICE_IN_TELEPHONY_RX), 99 STRING_TO_ENUM(AUDIO_DEVICE_IN_VOICE_CALL), 100 STRING_TO_ENUM(AUDIO_DEVICE_IN_BACK_MIC), 101 STRING_TO_ENUM(AUDIO_DEVICE_IN_REMOTE_SUBMIX), 102 STRING_TO_ENUM(AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET), 103 STRING_TO_ENUM(AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET), 104 STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_ACCESSORY), 105 STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_DEVICE), 106 STRING_TO_ENUM(AUDIO_DEVICE_IN_FM_TUNER), 107 STRING_TO_ENUM(AUDIO_DEVICE_IN_TV_TUNER), 108 STRING_TO_ENUM(AUDIO_DEVICE_IN_LINE), 109 STRING_TO_ENUM(AUDIO_DEVICE_IN_SPDIF), 110 STRING_TO_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_A2DP), 111 STRING_TO_ENUM(AUDIO_DEVICE_IN_LOOPBACK), 112}; 113 114const StringToEnum sFlagNameToEnumTable[] = { 115 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DIRECT), 116 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_PRIMARY), 117 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_FAST), 118 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DEEP_BUFFER), 119 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD), 120 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_NON_BLOCKING), 121 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_HW_AV_SYNC), 122}; 123 124const StringToEnum sFormatNameToEnumTable[] = { 125 STRING_TO_ENUM(AUDIO_FORMAT_PCM_16_BIT), 126 STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_BIT), 127 STRING_TO_ENUM(AUDIO_FORMAT_PCM_32_BIT), 128 STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_24_BIT), 129 STRING_TO_ENUM(AUDIO_FORMAT_PCM_FLOAT), 130 STRING_TO_ENUM(AUDIO_FORMAT_PCM_24_BIT_PACKED), 131 STRING_TO_ENUM(AUDIO_FORMAT_MP3), 132 STRING_TO_ENUM(AUDIO_FORMAT_AAC), 133 STRING_TO_ENUM(AUDIO_FORMAT_AAC_MAIN), 134 STRING_TO_ENUM(AUDIO_FORMAT_AAC_LC), 135 STRING_TO_ENUM(AUDIO_FORMAT_AAC_SSR), 136 STRING_TO_ENUM(AUDIO_FORMAT_AAC_LTP), 137 STRING_TO_ENUM(AUDIO_FORMAT_AAC_HE_V1), 138 STRING_TO_ENUM(AUDIO_FORMAT_AAC_SCALABLE), 139 STRING_TO_ENUM(AUDIO_FORMAT_AAC_ERLC), 140 STRING_TO_ENUM(AUDIO_FORMAT_AAC_LD), 141 STRING_TO_ENUM(AUDIO_FORMAT_AAC_HE_V2), 142 STRING_TO_ENUM(AUDIO_FORMAT_AAC_ELD), 143 STRING_TO_ENUM(AUDIO_FORMAT_VORBIS), 144 STRING_TO_ENUM(AUDIO_FORMAT_HE_AAC_V1), 145 STRING_TO_ENUM(AUDIO_FORMAT_HE_AAC_V2), 146 STRING_TO_ENUM(AUDIO_FORMAT_OPUS), 147 STRING_TO_ENUM(AUDIO_FORMAT_AC3), 148 STRING_TO_ENUM(AUDIO_FORMAT_E_AC3), 149}; 150 151const StringToEnum sOutChannelsNameToEnumTable[] = { 152 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_MONO), 153 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_STEREO), 154 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_QUAD), 155 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_5POINT1), 156 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_7POINT1), 157}; 158 159const StringToEnum sInChannelsNameToEnumTable[] = { 160 STRING_TO_ENUM(AUDIO_CHANNEL_IN_MONO), 161 STRING_TO_ENUM(AUDIO_CHANNEL_IN_STEREO), 162 STRING_TO_ENUM(AUDIO_CHANNEL_IN_FRONT_BACK), 163}; 164 165const StringToEnum sGainModeNameToEnumTable[] = { 166 STRING_TO_ENUM(AUDIO_GAIN_MODE_JOINT), 167 STRING_TO_ENUM(AUDIO_GAIN_MODE_CHANNELS), 168 STRING_TO_ENUM(AUDIO_GAIN_MODE_RAMP), 169}; 170 171 172uint32_t AudioPolicyManager::stringToEnum(const struct StringToEnum *table, 173 size_t size, 174 const char *name) 175{ 176 for (size_t i = 0; i < size; i++) { 177 if (strcmp(table[i].name, name) == 0) { 178 ALOGV("stringToEnum() found %s", table[i].name); 179 return table[i].value; 180 } 181 } 182 return 0; 183} 184 185const char *AudioPolicyManager::enumToString(const struct StringToEnum *table, 186 size_t size, 187 uint32_t value) 188{ 189 for (size_t i = 0; i < size; i++) { 190 if (table[i].value == value) { 191 return table[i].name; 192 } 193 } 194 return ""; 195} 196 197bool AudioPolicyManager::stringToBool(const char *value) 198{ 199 return ((strcasecmp("true", value) == 0) || (strcmp("1", value) == 0)); 200} 201 202 203// ---------------------------------------------------------------------------- 204// AudioPolicyInterface implementation 205// ---------------------------------------------------------------------------- 206 207 208status_t AudioPolicyManager::setDeviceConnectionState(audio_devices_t device, 209 audio_policy_dev_state_t state, 210 const char *device_address) 211{ 212 String8 address = (device_address == NULL) ? String8("") : String8(device_address); 213 214 ALOGV("setDeviceConnectionState() device: %x, state %d, address %s", 215 device, state, address.string()); 216 217 // connect/disconnect only 1 device at a time 218 if (!audio_is_output_device(device) && !audio_is_input_device(device)) return BAD_VALUE; 219 220 // handle output devices 221 if (audio_is_output_device(device)) { 222 SortedVector <audio_io_handle_t> outputs; 223 224 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 225 devDesc->mAddress = address; 226 ssize_t index = mAvailableOutputDevices.indexOf(devDesc); 227 228 // save a copy of the opened output descriptors before any output is opened or closed 229 // by checkOutputsForDevice(). This will be needed by checkOutputForAllStrategies() 230 mPreviousOutputs = mOutputs; 231 switch (state) 232 { 233 // handle output device connection 234 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: 235 if (index >= 0) { 236 ALOGW("setDeviceConnectionState() device already connected: %x", device); 237 return INVALID_OPERATION; 238 } 239 ALOGV("setDeviceConnectionState() connecting device %x", device); 240 241 // register new device as available 242 index = mAvailableOutputDevices.add(devDesc); 243 if (index >= 0) { 244 sp<HwModule> module = getModuleForDevice(device); 245 if (module == 0) { 246 ALOGD("setDeviceConnectionState() could not find HW module for device %08x", 247 device); 248 mAvailableOutputDevices.remove(devDesc); 249 return INVALID_OPERATION; 250 } 251 mAvailableOutputDevices[index]->mId = nextUniqueId(); 252 mAvailableOutputDevices[index]->mModule = module; 253 } else { 254 return NO_MEMORY; 255 } 256 257 if (checkOutputsForDevice(devDesc, state, outputs, address) != NO_ERROR) { 258 mAvailableOutputDevices.remove(devDesc); 259 return INVALID_OPERATION; 260 } 261 // outputs should never be empty here 262 ALOG_ASSERT(outputs.size() != 0, "setDeviceConnectionState():" 263 "checkOutputsForDevice() returned no outputs but status OK"); 264 ALOGV("setDeviceConnectionState() checkOutputsForDevice() returned %zu outputs", 265 outputs.size()); 266 break; 267 // handle output device disconnection 268 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 269 if (index < 0) { 270 ALOGW("setDeviceConnectionState() device not connected: %x", device); 271 return INVALID_OPERATION; 272 } 273 274 ALOGV("setDeviceConnectionState() disconnecting output device %x", device); 275 276 // Set Disconnect to HALs 277 AudioParameter param = AudioParameter(address); 278 param.addInt(String8(AUDIO_PARAMETER_DEVICE_DISCONNECT), device); 279 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 280 281 // remove device from available output devices 282 mAvailableOutputDevices.remove(devDesc); 283 284 checkOutputsForDevice(devDesc, state, outputs, address); 285 } break; 286 287 default: 288 ALOGE("setDeviceConnectionState() invalid state: %x", state); 289 return BAD_VALUE; 290 } 291 292 // checkA2dpSuspend must run before checkOutputForAllStrategies so that A2DP 293 // output is suspended before any tracks are moved to it 294 checkA2dpSuspend(); 295 checkOutputForAllStrategies(); 296 // outputs must be closed after checkOutputForAllStrategies() is executed 297 if (!outputs.isEmpty()) { 298 for (size_t i = 0; i < outputs.size(); i++) { 299 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 300 // close unused outputs after device disconnection or direct outputs that have been 301 // opened by checkOutputsForDevice() to query dynamic parameters 302 if ((state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) || 303 (((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) && 304 (desc->mDirectOpenCount == 0))) { 305 closeOutput(outputs[i]); 306 } 307 } 308 // check again after closing A2DP output to reset mA2dpSuspended if needed 309 checkA2dpSuspend(); 310 } 311 312 updateDevicesAndOutputs(); 313 if (mPhoneState == AUDIO_MODE_IN_CALL) { 314 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 315 updateCallRouting(newDevice); 316 } 317 for (size_t i = 0; i < mOutputs.size(); i++) { 318 audio_io_handle_t output = mOutputs.keyAt(i); 319 if ((mPhoneState != AUDIO_MODE_IN_CALL) || (output != mPrimaryOutput)) { 320 audio_devices_t newDevice = getNewOutputDevice(mOutputs.keyAt(i), 321 true /*fromCache*/); 322 // do not force device change on duplicated output because if device is 0, it will 323 // also force a device 0 for the two outputs it is duplicated to which may override 324 // a valid device selection on those outputs. 325 bool force = !mOutputs.valueAt(i)->isDuplicated() 326 && (!deviceDistinguishesOnAddress(device) 327 // always force when disconnecting (a non-duplicated device) 328 || (state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE)); 329 setOutputDevice(output, newDevice, force, 0); 330 } 331 } 332 333 mpClientInterface->onAudioPortListUpdate(); 334 return NO_ERROR; 335 } // end if is output device 336 337 // handle input devices 338 if (audio_is_input_device(device)) { 339 SortedVector <audio_io_handle_t> inputs; 340 341 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 342 devDesc->mAddress = address; 343 ssize_t index = mAvailableInputDevices.indexOf(devDesc); 344 switch (state) 345 { 346 // handle input device connection 347 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: { 348 if (index >= 0) { 349 ALOGW("setDeviceConnectionState() device already connected: %d", device); 350 return INVALID_OPERATION; 351 } 352 sp<HwModule> module = getModuleForDevice(device); 353 if (module == NULL) { 354 ALOGW("setDeviceConnectionState(): could not find HW module for device %08x", 355 device); 356 return INVALID_OPERATION; 357 } 358 if (checkInputsForDevice(device, state, inputs, address) != NO_ERROR) { 359 return INVALID_OPERATION; 360 } 361 362 index = mAvailableInputDevices.add(devDesc); 363 if (index >= 0) { 364 mAvailableInputDevices[index]->mId = nextUniqueId(); 365 mAvailableInputDevices[index]->mModule = module; 366 } else { 367 return NO_MEMORY; 368 } 369 } break; 370 371 // handle input device disconnection 372 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 373 if (index < 0) { 374 ALOGW("setDeviceConnectionState() device not connected: %d", device); 375 return INVALID_OPERATION; 376 } 377 378 ALOGV("setDeviceConnectionState() disconnecting input device %x", device); 379 380 // Set Disconnect to HALs 381 AudioParameter param = AudioParameter(address); 382 param.addInt(String8(AUDIO_PARAMETER_DEVICE_DISCONNECT), device); 383 mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString()); 384 385 checkInputsForDevice(device, state, inputs, address); 386 mAvailableInputDevices.remove(devDesc); 387 388 } break; 389 390 default: 391 ALOGE("setDeviceConnectionState() invalid state: %x", state); 392 return BAD_VALUE; 393 } 394 395 closeAllInputs(); 396 397 if (mPhoneState == AUDIO_MODE_IN_CALL) { 398 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 399 updateCallRouting(newDevice); 400 } 401 402 mpClientInterface->onAudioPortListUpdate(); 403 return NO_ERROR; 404 } // end if is input device 405 406 ALOGW("setDeviceConnectionState() invalid device: %x", device); 407 return BAD_VALUE; 408} 409 410audio_policy_dev_state_t AudioPolicyManager::getDeviceConnectionState(audio_devices_t device, 411 const char *device_address) 412{ 413 audio_policy_dev_state_t state = AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 414 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 415 devDesc->mAddress = (device_address == NULL) ? String8("") : String8(device_address); 416 ssize_t index; 417 DeviceVector *deviceVector; 418 419 if (audio_is_output_device(device)) { 420 deviceVector = &mAvailableOutputDevices; 421 } else if (audio_is_input_device(device)) { 422 deviceVector = &mAvailableInputDevices; 423 } else { 424 ALOGW("getDeviceConnectionState() invalid device type %08x", device); 425 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 426 } 427 428 index = deviceVector->indexOf(devDesc); 429 if (index >= 0) { 430 return AUDIO_POLICY_DEVICE_STATE_AVAILABLE; 431 } else { 432 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 433 } 434} 435 436void AudioPolicyManager::updateCallRouting(audio_devices_t rxDevice, int delayMs) 437{ 438 bool createTxPatch = false; 439 struct audio_patch patch; 440 patch.num_sources = 1; 441 patch.num_sinks = 1; 442 status_t status; 443 audio_patch_handle_t afPatchHandle; 444 DeviceVector deviceList; 445 446 audio_devices_t txDevice = getDeviceForInputSource(AUDIO_SOURCE_VOICE_COMMUNICATION); 447 ALOGV("updateCallRouting device rxDevice %08x txDevice %08x", rxDevice, txDevice); 448 449 // release existing RX patch if any 450 if (mCallRxPatch != 0) { 451 mpClientInterface->releaseAudioPatch(mCallRxPatch->mAfPatchHandle, 0); 452 mCallRxPatch.clear(); 453 } 454 // release TX patch if any 455 if (mCallTxPatch != 0) { 456 mpClientInterface->releaseAudioPatch(mCallTxPatch->mAfPatchHandle, 0); 457 mCallTxPatch.clear(); 458 } 459 460 // If the RX device is on the primary HW module, then use legacy routing method for voice calls 461 // via setOutputDevice() on primary output. 462 // Otherwise, create two audio patches for TX and RX path. 463 if (availablePrimaryOutputDevices() & rxDevice) { 464 setOutputDevice(mPrimaryOutput, rxDevice, true, delayMs); 465 // If the TX device is also on the primary HW module, setOutputDevice() will take care 466 // of it due to legacy implementation. If not, create a patch. 467 if ((availablePrimaryInputDevices() & txDevice & ~AUDIO_DEVICE_BIT_IN) 468 == AUDIO_DEVICE_NONE) { 469 createTxPatch = true; 470 } 471 } else { 472 // create RX path audio patch 473 deviceList = mAvailableOutputDevices.getDevicesFromType(rxDevice); 474 ALOG_ASSERT(!deviceList.isEmpty(), 475 "updateCallRouting() selected device not in output device list"); 476 sp<DeviceDescriptor> rxSinkDeviceDesc = deviceList.itemAt(0); 477 deviceList = mAvailableInputDevices.getDevicesFromType(AUDIO_DEVICE_IN_TELEPHONY_RX); 478 ALOG_ASSERT(!deviceList.isEmpty(), 479 "updateCallRouting() no telephony RX device"); 480 sp<DeviceDescriptor> rxSourceDeviceDesc = deviceList.itemAt(0); 481 482 rxSourceDeviceDesc->toAudioPortConfig(&patch.sources[0]); 483 rxSinkDeviceDesc->toAudioPortConfig(&patch.sinks[0]); 484 485 // request to reuse existing output stream if one is already opened to reach the RX device 486 SortedVector<audio_io_handle_t> outputs = 487 getOutputsForDevice(rxDevice, mOutputs); 488 audio_io_handle_t output = selectOutput(outputs, AUDIO_OUTPUT_FLAG_NONE); 489 if (output != AUDIO_IO_HANDLE_NONE) { 490 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 491 ALOG_ASSERT(!outputDesc->isDuplicated(), 492 "updateCallRouting() RX device output is duplicated"); 493 outputDesc->toAudioPortConfig(&patch.sources[1]); 494 patch.num_sources = 2; 495 } 496 497 afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 498 status = mpClientInterface->createAudioPatch(&patch, &afPatchHandle, 0); 499 ALOGW_IF(status != NO_ERROR, "updateCallRouting() error %d creating RX audio patch", 500 status); 501 if (status == NO_ERROR) { 502 mCallRxPatch = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 503 &patch, mUidCached); 504 mCallRxPatch->mAfPatchHandle = afPatchHandle; 505 mCallRxPatch->mUid = mUidCached; 506 } 507 createTxPatch = true; 508 } 509 if (createTxPatch) { 510 511 struct audio_patch patch; 512 patch.num_sources = 1; 513 patch.num_sinks = 1; 514 deviceList = mAvailableInputDevices.getDevicesFromType(txDevice); 515 ALOG_ASSERT(!deviceList.isEmpty(), 516 "updateCallRouting() selected device not in input device list"); 517 sp<DeviceDescriptor> txSourceDeviceDesc = deviceList.itemAt(0); 518 txSourceDeviceDesc->toAudioPortConfig(&patch.sources[0]); 519 deviceList = mAvailableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_TELEPHONY_TX); 520 ALOG_ASSERT(!deviceList.isEmpty(), 521 "updateCallRouting() no telephony TX device"); 522 sp<DeviceDescriptor> txSinkDeviceDesc = deviceList.itemAt(0); 523 txSinkDeviceDesc->toAudioPortConfig(&patch.sinks[0]); 524 525 SortedVector<audio_io_handle_t> outputs = 526 getOutputsForDevice(AUDIO_DEVICE_OUT_TELEPHONY_TX, mOutputs); 527 audio_io_handle_t output = selectOutput(outputs, AUDIO_OUTPUT_FLAG_NONE); 528 // request to reuse existing output stream if one is already opened to reach the TX 529 // path output device 530 if (output != AUDIO_IO_HANDLE_NONE) { 531 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 532 ALOG_ASSERT(!outputDesc->isDuplicated(), 533 "updateCallRouting() RX device output is duplicated"); 534 outputDesc->toAudioPortConfig(&patch.sources[1]); 535 patch.num_sources = 2; 536 } 537 538 afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 539 status = mpClientInterface->createAudioPatch(&patch, &afPatchHandle, 0); 540 ALOGW_IF(status != NO_ERROR, "setPhoneState() error %d creating TX audio patch", 541 status); 542 if (status == NO_ERROR) { 543 mCallTxPatch = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 544 &patch, mUidCached); 545 mCallTxPatch->mAfPatchHandle = afPatchHandle; 546 mCallTxPatch->mUid = mUidCached; 547 } 548 } 549} 550 551void AudioPolicyManager::setPhoneState(audio_mode_t state) 552{ 553 ALOGV("setPhoneState() state %d", state); 554 if (state < 0 || state >= AUDIO_MODE_CNT) { 555 ALOGW("setPhoneState() invalid state %d", state); 556 return; 557 } 558 559 if (state == mPhoneState ) { 560 ALOGW("setPhoneState() setting same state %d", state); 561 return; 562 } 563 564 // if leaving call state, handle special case of active streams 565 // pertaining to sonification strategy see handleIncallSonification() 566 if (isInCall()) { 567 ALOGV("setPhoneState() in call state management: new state is %d", state); 568 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 569 handleIncallSonification((audio_stream_type_t)stream, false, true); 570 } 571 } 572 573 // store previous phone state for management of sonification strategy below 574 int oldState = mPhoneState; 575 mPhoneState = state; 576 bool force = false; 577 578 // are we entering or starting a call 579 if (!isStateInCall(oldState) && isStateInCall(state)) { 580 ALOGV(" Entering call in setPhoneState()"); 581 // force routing command to audio hardware when starting a call 582 // even if no device change is needed 583 force = true; 584 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 585 mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] = 586 sVolumeProfiles[AUDIO_STREAM_VOICE_CALL][j]; 587 } 588 } else if (isStateInCall(oldState) && !isStateInCall(state)) { 589 ALOGV(" Exiting call in setPhoneState()"); 590 // force routing command to audio hardware when exiting a call 591 // even if no device change is needed 592 force = true; 593 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 594 mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] = 595 sVolumeProfiles[AUDIO_STREAM_DTMF][j]; 596 } 597 } else if (isStateInCall(state) && (state != oldState)) { 598 ALOGV(" Switching between telephony and VoIP in setPhoneState()"); 599 // force routing command to audio hardware when switching between telephony and VoIP 600 // even if no device change is needed 601 force = true; 602 } 603 604 // check for device and output changes triggered by new phone state 605 checkA2dpSuspend(); 606 checkOutputForAllStrategies(); 607 updateDevicesAndOutputs(); 608 609 sp<AudioOutputDescriptor> hwOutputDesc = mOutputs.valueFor(mPrimaryOutput); 610 611 int delayMs = 0; 612 if (isStateInCall(state)) { 613 nsecs_t sysTime = systemTime(); 614 for (size_t i = 0; i < mOutputs.size(); i++) { 615 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 616 // mute media and sonification strategies and delay device switch by the largest 617 // latency of any output where either strategy is active. 618 // This avoid sending the ring tone or music tail into the earpiece or headset. 619 if ((desc->isStrategyActive(STRATEGY_MEDIA, 620 SONIFICATION_HEADSET_MUSIC_DELAY, 621 sysTime) || 622 desc->isStrategyActive(STRATEGY_SONIFICATION, 623 SONIFICATION_HEADSET_MUSIC_DELAY, 624 sysTime)) && 625 (delayMs < (int)desc->mLatency*2)) { 626 delayMs = desc->mLatency*2; 627 } 628 setStrategyMute(STRATEGY_MEDIA, true, mOutputs.keyAt(i)); 629 setStrategyMute(STRATEGY_MEDIA, false, mOutputs.keyAt(i), MUTE_TIME_MS, 630 getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/)); 631 setStrategyMute(STRATEGY_SONIFICATION, true, mOutputs.keyAt(i)); 632 setStrategyMute(STRATEGY_SONIFICATION, false, mOutputs.keyAt(i), MUTE_TIME_MS, 633 getDeviceForStrategy(STRATEGY_SONIFICATION, true /*fromCache*/)); 634 } 635 } 636 637 // Note that despite the fact that getNewOutputDevice() is called on the primary output, 638 // the device returned is not necessarily reachable via this output 639 audio_devices_t rxDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 640 // force routing command to audio hardware when ending call 641 // even if no device change is needed 642 if (isStateInCall(oldState) && rxDevice == AUDIO_DEVICE_NONE) { 643 rxDevice = hwOutputDesc->device(); 644 } 645 646 if (state == AUDIO_MODE_IN_CALL) { 647 updateCallRouting(rxDevice, delayMs); 648 } else if (oldState == AUDIO_MODE_IN_CALL) { 649 if (mCallRxPatch != 0) { 650 mpClientInterface->releaseAudioPatch(mCallRxPatch->mAfPatchHandle, 0); 651 mCallRxPatch.clear(); 652 } 653 if (mCallTxPatch != 0) { 654 mpClientInterface->releaseAudioPatch(mCallTxPatch->mAfPatchHandle, 0); 655 mCallTxPatch.clear(); 656 } 657 setOutputDevice(mPrimaryOutput, rxDevice, force, 0); 658 } else { 659 setOutputDevice(mPrimaryOutput, rxDevice, force, 0); 660 } 661 // if entering in call state, handle special case of active streams 662 // pertaining to sonification strategy see handleIncallSonification() 663 if (isStateInCall(state)) { 664 ALOGV("setPhoneState() in call state management: new state is %d", state); 665 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 666 handleIncallSonification((audio_stream_type_t)stream, true, true); 667 } 668 } 669 670 // Flag that ringtone volume must be limited to music volume until we exit MODE_RINGTONE 671 if (state == AUDIO_MODE_RINGTONE && 672 isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY)) { 673 mLimitRingtoneVolume = true; 674 } else { 675 mLimitRingtoneVolume = false; 676 } 677} 678 679void AudioPolicyManager::setForceUse(audio_policy_force_use_t usage, 680 audio_policy_forced_cfg_t config) 681{ 682 ALOGV("setForceUse() usage %d, config %d, mPhoneState %d", usage, config, mPhoneState); 683 684 bool forceVolumeReeval = false; 685 switch(usage) { 686 case AUDIO_POLICY_FORCE_FOR_COMMUNICATION: 687 if (config != AUDIO_POLICY_FORCE_SPEAKER && config != AUDIO_POLICY_FORCE_BT_SCO && 688 config != AUDIO_POLICY_FORCE_NONE) { 689 ALOGW("setForceUse() invalid config %d for FOR_COMMUNICATION", config); 690 return; 691 } 692 forceVolumeReeval = true; 693 mForceUse[usage] = config; 694 break; 695 case AUDIO_POLICY_FORCE_FOR_MEDIA: 696 if (config != AUDIO_POLICY_FORCE_HEADPHONES && config != AUDIO_POLICY_FORCE_BT_A2DP && 697 config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 698 config != AUDIO_POLICY_FORCE_ANALOG_DOCK && 699 config != AUDIO_POLICY_FORCE_DIGITAL_DOCK && config != AUDIO_POLICY_FORCE_NONE && 700 config != AUDIO_POLICY_FORCE_NO_BT_A2DP) { 701 ALOGW("setForceUse() invalid config %d for FOR_MEDIA", config); 702 return; 703 } 704 mForceUse[usage] = config; 705 break; 706 case AUDIO_POLICY_FORCE_FOR_RECORD: 707 if (config != AUDIO_POLICY_FORCE_BT_SCO && config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 708 config != AUDIO_POLICY_FORCE_NONE) { 709 ALOGW("setForceUse() invalid config %d for FOR_RECORD", config); 710 return; 711 } 712 mForceUse[usage] = config; 713 break; 714 case AUDIO_POLICY_FORCE_FOR_DOCK: 715 if (config != AUDIO_POLICY_FORCE_NONE && config != AUDIO_POLICY_FORCE_BT_CAR_DOCK && 716 config != AUDIO_POLICY_FORCE_BT_DESK_DOCK && 717 config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 718 config != AUDIO_POLICY_FORCE_ANALOG_DOCK && 719 config != AUDIO_POLICY_FORCE_DIGITAL_DOCK) { 720 ALOGW("setForceUse() invalid config %d for FOR_DOCK", config); 721 } 722 forceVolumeReeval = true; 723 mForceUse[usage] = config; 724 break; 725 case AUDIO_POLICY_FORCE_FOR_SYSTEM: 726 if (config != AUDIO_POLICY_FORCE_NONE && 727 config != AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) { 728 ALOGW("setForceUse() invalid config %d for FOR_SYSTEM", config); 729 } 730 forceVolumeReeval = true; 731 mForceUse[usage] = config; 732 break; 733 case AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO: 734 if (config != AUDIO_POLICY_FORCE_NONE && 735 config != AUDIO_POLICY_FORCE_HDMI_SYSTEM_AUDIO_ENFORCED) { 736 ALOGW("setForceUse() invalid config %d forHDMI_SYSTEM_AUDIO", config); 737 } 738 mForceUse[usage] = config; 739 break; 740 default: 741 ALOGW("setForceUse() invalid usage %d", usage); 742 break; 743 } 744 745 // check for device and output changes triggered by new force usage 746 checkA2dpSuspend(); 747 checkOutputForAllStrategies(); 748 updateDevicesAndOutputs(); 749 if (mPhoneState == AUDIO_MODE_IN_CALL) { 750 audio_devices_t newDevice = getNewOutputDevice(mPrimaryOutput, true /*fromCache*/); 751 updateCallRouting(newDevice); 752 } 753 for (size_t i = 0; i < mOutputs.size(); i++) { 754 audio_io_handle_t output = mOutputs.keyAt(i); 755 audio_devices_t newDevice = getNewOutputDevice(output, true /*fromCache*/); 756 if ((mPhoneState != AUDIO_MODE_IN_CALL) || (output != mPrimaryOutput)) { 757 setOutputDevice(output, newDevice, (newDevice != AUDIO_DEVICE_NONE)); 758 } 759 if (forceVolumeReeval && (newDevice != AUDIO_DEVICE_NONE)) { 760 applyStreamVolumes(output, newDevice, 0, true); 761 } 762 } 763 764 audio_io_handle_t activeInput = getActiveInput(); 765 if (activeInput != 0) { 766 setInputDevice(activeInput, getNewInputDevice(activeInput)); 767 } 768 769} 770 771audio_policy_forced_cfg_t AudioPolicyManager::getForceUse(audio_policy_force_use_t usage) 772{ 773 return mForceUse[usage]; 774} 775 776void AudioPolicyManager::setSystemProperty(const char* property, const char* value) 777{ 778 ALOGV("setSystemProperty() property %s, value %s", property, value); 779} 780 781// Find a direct output profile compatible with the parameters passed, even if the input flags do 782// not explicitly request a direct output 783sp<AudioPolicyManager::IOProfile> AudioPolicyManager::getProfileForDirectOutput( 784 audio_devices_t device, 785 uint32_t samplingRate, 786 audio_format_t format, 787 audio_channel_mask_t channelMask, 788 audio_output_flags_t flags) 789{ 790 for (size_t i = 0; i < mHwModules.size(); i++) { 791 if (mHwModules[i]->mHandle == 0) { 792 continue; 793 } 794 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) { 795 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 796 bool found = profile->isCompatibleProfile(device, samplingRate, 797 NULL /*updatedSamplingRate*/, format, channelMask, 798 flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD ? 799 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD : AUDIO_OUTPUT_FLAG_DIRECT); 800 if (found && (mAvailableOutputDevices.types() & profile->mSupportedDevices.types())) { 801 return profile; 802 } 803 } 804 } 805 return 0; 806} 807 808audio_io_handle_t AudioPolicyManager::getOutput(audio_stream_type_t stream, 809 uint32_t samplingRate, 810 audio_format_t format, 811 audio_channel_mask_t channelMask, 812 audio_output_flags_t flags, 813 const audio_offload_info_t *offloadInfo) 814{ 815 816 routing_strategy strategy = getStrategy(stream); 817 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 818 ALOGV("getOutput() device %d, stream %d, samplingRate %d, format %x, channelMask %x, flags %x", 819 device, stream, samplingRate, format, channelMask, flags); 820 821 return getOutputForDevice(device, stream, samplingRate,format, channelMask, flags, 822 offloadInfo); 823} 824 825audio_io_handle_t AudioPolicyManager::getOutputForAttr(const audio_attributes_t *attr, 826 uint32_t samplingRate, 827 audio_format_t format, 828 audio_channel_mask_t channelMask, 829 audio_output_flags_t flags, 830 const audio_offload_info_t *offloadInfo) 831{ 832 if (attr == NULL) { 833 ALOGE("getOutputForAttr() called with NULL audio attributes"); 834 return 0; 835 } 836 ALOGV("getOutputForAttr() usage=%d, content=%d, tag=%s flags=%08x", 837 attr->usage, attr->content_type, attr->tags, attr->flags); 838 839 // TODO this is where filtering for custom policies (rerouting, dynamic sources) will go 840 routing_strategy strategy = (routing_strategy) getStrategyForAttr(attr); 841 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 842 843 if ((attr->flags & AUDIO_FLAG_HW_AV_SYNC) != 0) { 844 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_HW_AV_SYNC); 845 } 846 847 ALOGV("getOutputForAttr() device %d, samplingRate %d, format %x, channelMask %x, flags %x", 848 device, samplingRate, format, channelMask, flags); 849 850 audio_stream_type_t stream = streamTypefromAttributesInt(attr); 851 return getOutputForDevice(device, stream, samplingRate, format, channelMask, flags, 852 offloadInfo); 853} 854 855audio_io_handle_t AudioPolicyManager::getOutputForDevice( 856 audio_devices_t device, 857 audio_stream_type_t stream, 858 uint32_t samplingRate, 859 audio_format_t format, 860 audio_channel_mask_t channelMask, 861 audio_output_flags_t flags, 862 const audio_offload_info_t *offloadInfo) 863{ 864 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 865 uint32_t latency = 0; 866 status_t status; 867 868#ifdef AUDIO_POLICY_TEST 869 if (mCurOutput != 0) { 870 ALOGV("getOutput() test output mCurOutput %d, samplingRate %d, format %d, channelMask %x, mDirectOutput %d", 871 mCurOutput, mTestSamplingRate, mTestFormat, mTestChannels, mDirectOutput); 872 873 if (mTestOutputs[mCurOutput] == 0) { 874 ALOGV("getOutput() opening test output"); 875 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(NULL); 876 outputDesc->mDevice = mTestDevice; 877 outputDesc->mLatency = mTestLatencyMs; 878 outputDesc->mFlags = 879 (audio_output_flags_t)(mDirectOutput ? AUDIO_OUTPUT_FLAG_DIRECT : 0); 880 outputDesc->mRefCount[stream] = 0; 881 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 882 config.sample_rate = mTestSamplingRate; 883 config.channel_mask = mTestChannels; 884 config.format = mTestFormat; 885 if (offloadInfo != NULL) { 886 config.offload_info = *offloadInfo; 887 } 888 status = mpClientInterface->openOutput(0, 889 &mTestOutputs[mCurOutput], 890 &config, 891 &outputDesc->mDevice, 892 String8(""), 893 &outputDesc->mLatency, 894 outputDesc->mFlags); 895 if (status == NO_ERROR) { 896 outputDesc->mSamplingRate = config.sample_rate; 897 outputDesc->mFormat = config.format; 898 outputDesc->mChannelMask = config.channel_mask; 899 AudioParameter outputCmd = AudioParameter(); 900 outputCmd.addInt(String8("set_id"),mCurOutput); 901 mpClientInterface->setParameters(mTestOutputs[mCurOutput],outputCmd.toString()); 902 addOutput(mTestOutputs[mCurOutput], outputDesc); 903 } 904 } 905 return mTestOutputs[mCurOutput]; 906 } 907#endif //AUDIO_POLICY_TEST 908 909 // open a direct output if required by specified parameters 910 //force direct flag if offload flag is set: offloading implies a direct output stream 911 // and all common behaviors are driven by checking only the direct flag 912 // this should normally be set appropriately in the policy configuration file 913 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 914 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 915 } 916 if ((flags & AUDIO_OUTPUT_FLAG_HW_AV_SYNC) != 0) { 917 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 918 } 919 920 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 921 // creating an offloaded track and tearing it down immediately after start when audioflinger 922 // detects there is an active non offloadable effect. 923 // FIXME: We should check the audio session here but we do not have it in this context. 924 // This may prevent offloading in rare situations where effects are left active by apps 925 // in the background. 926 sp<IOProfile> profile; 927 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) || 928 !isNonOffloadableEffectEnabled()) { 929 profile = getProfileForDirectOutput(device, 930 samplingRate, 931 format, 932 channelMask, 933 (audio_output_flags_t)flags); 934 } 935 936 if (profile != 0) { 937 sp<AudioOutputDescriptor> outputDesc = NULL; 938 939 for (size_t i = 0; i < mOutputs.size(); i++) { 940 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 941 if (!desc->isDuplicated() && (profile == desc->mProfile)) { 942 outputDesc = desc; 943 // reuse direct output if currently open and configured with same parameters 944 if ((samplingRate == outputDesc->mSamplingRate) && 945 (format == outputDesc->mFormat) && 946 (channelMask == outputDesc->mChannelMask)) { 947 outputDesc->mDirectOpenCount++; 948 ALOGV("getOutput() reusing direct output %d", mOutputs.keyAt(i)); 949 return mOutputs.keyAt(i); 950 } 951 } 952 } 953 // close direct output if currently open and configured with different parameters 954 if (outputDesc != NULL) { 955 closeOutput(outputDesc->mIoHandle); 956 } 957 outputDesc = new AudioOutputDescriptor(profile); 958 outputDesc->mDevice = device; 959 outputDesc->mLatency = 0; 960 outputDesc->mFlags =(audio_output_flags_t) (outputDesc->mFlags | flags); 961 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 962 config.sample_rate = samplingRate; 963 config.channel_mask = channelMask; 964 config.format = format; 965 if (offloadInfo != NULL) { 966 config.offload_info = *offloadInfo; 967 } 968 status = mpClientInterface->openOutput(profile->mModule->mHandle, 969 &output, 970 &config, 971 &outputDesc->mDevice, 972 String8(""), 973 &outputDesc->mLatency, 974 outputDesc->mFlags); 975 976 // only accept an output with the requested parameters 977 if (status != NO_ERROR || 978 (samplingRate != 0 && samplingRate != config.sample_rate) || 979 (format != AUDIO_FORMAT_DEFAULT && format != config.format) || 980 (channelMask != 0 && channelMask != config.channel_mask)) { 981 ALOGV("getOutput() failed opening direct output: output %d samplingRate %d %d," 982 "format %d %d, channelMask %04x %04x", output, samplingRate, 983 outputDesc->mSamplingRate, format, outputDesc->mFormat, channelMask, 984 outputDesc->mChannelMask); 985 if (output != AUDIO_IO_HANDLE_NONE) { 986 mpClientInterface->closeOutput(output); 987 } 988 return AUDIO_IO_HANDLE_NONE; 989 } 990 outputDesc->mSamplingRate = config.sample_rate; 991 outputDesc->mChannelMask = config.channel_mask; 992 outputDesc->mFormat = config.format; 993 outputDesc->mRefCount[stream] = 0; 994 outputDesc->mStopTime[stream] = 0; 995 outputDesc->mDirectOpenCount = 1; 996 997 audio_io_handle_t srcOutput = getOutputForEffect(); 998 addOutput(output, outputDesc); 999 audio_io_handle_t dstOutput = getOutputForEffect(); 1000 if (dstOutput == output) { 1001 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, srcOutput, dstOutput); 1002 } 1003 mPreviousOutputs = mOutputs; 1004 ALOGV("getOutput() returns new direct output %d", output); 1005 mpClientInterface->onAudioPortListUpdate(); 1006 return output; 1007 } 1008 1009 // ignoring channel mask due to downmix capability in mixer 1010 1011 // open a non direct output 1012 1013 // for non direct outputs, only PCM is supported 1014 if (audio_is_linear_pcm(format)) { 1015 // get which output is suitable for the specified stream. The actual 1016 // routing change will happen when startOutput() will be called 1017 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(device, mOutputs); 1018 1019 output = selectOutput(outputs, flags); 1020 } 1021 ALOGW_IF((output == 0), "getOutput() could not find output for stream %d, samplingRate %d," 1022 "format %d, channels %x, flags %x", stream, samplingRate, format, channelMask, flags); 1023 1024 ALOGV("getOutput() returns output %d", output); 1025 1026 return output; 1027} 1028 1029audio_io_handle_t AudioPolicyManager::selectOutput(const SortedVector<audio_io_handle_t>& outputs, 1030 audio_output_flags_t flags) 1031{ 1032 // select one output among several that provide a path to a particular device or set of 1033 // devices (the list was previously build by getOutputsForDevice()). 1034 // The priority is as follows: 1035 // 1: the output with the highest number of requested policy flags 1036 // 2: the primary output 1037 // 3: the first output in the list 1038 1039 if (outputs.size() == 0) { 1040 return 0; 1041 } 1042 if (outputs.size() == 1) { 1043 return outputs[0]; 1044 } 1045 1046 int maxCommonFlags = 0; 1047 audio_io_handle_t outputFlags = 0; 1048 audio_io_handle_t outputPrimary = 0; 1049 1050 for (size_t i = 0; i < outputs.size(); i++) { 1051 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 1052 if (!outputDesc->isDuplicated()) { 1053 int commonFlags = popcount(outputDesc->mProfile->mFlags & flags); 1054 if (commonFlags > maxCommonFlags) { 1055 outputFlags = outputs[i]; 1056 maxCommonFlags = commonFlags; 1057 ALOGV("selectOutput() commonFlags for output %d, %04x", outputs[i], commonFlags); 1058 } 1059 if (outputDesc->mProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 1060 outputPrimary = outputs[i]; 1061 } 1062 } 1063 } 1064 1065 if (outputFlags != 0) { 1066 return outputFlags; 1067 } 1068 if (outputPrimary != 0) { 1069 return outputPrimary; 1070 } 1071 1072 return outputs[0]; 1073} 1074 1075status_t AudioPolicyManager::startOutput(audio_io_handle_t output, 1076 audio_stream_type_t stream, 1077 int session) 1078{ 1079 ALOGV("startOutput() output %d, stream %d, session %d", output, stream, session); 1080 ssize_t index = mOutputs.indexOfKey(output); 1081 if (index < 0) { 1082 ALOGW("startOutput() unknown output %d", output); 1083 return BAD_VALUE; 1084 } 1085 1086 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1087 1088 // increment usage count for this stream on the requested output: 1089 // NOTE that the usage count is the same for duplicated output and hardware output which is 1090 // necessary for a correct control of hardware output routing by startOutput() and stopOutput() 1091 outputDesc->changeRefCount(stream, 1); 1092 1093 if (outputDesc->mRefCount[stream] == 1) { 1094 audio_devices_t newDevice = getNewOutputDevice(output, false /*fromCache*/); 1095 routing_strategy strategy = getStrategy(stream); 1096 bool shouldWait = (strategy == STRATEGY_SONIFICATION) || 1097 (strategy == STRATEGY_SONIFICATION_RESPECTFUL); 1098 uint32_t waitMs = 0; 1099 bool force = false; 1100 for (size_t i = 0; i < mOutputs.size(); i++) { 1101 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1102 if (desc != outputDesc) { 1103 // force a device change if any other output is managed by the same hw 1104 // module and has a current device selection that differs from selected device. 1105 // In this case, the audio HAL must receive the new device selection so that it can 1106 // change the device currently selected by the other active output. 1107 if (outputDesc->sharesHwModuleWith(desc) && 1108 desc->device() != newDevice) { 1109 force = true; 1110 } 1111 // wait for audio on other active outputs to be presented when starting 1112 // a notification so that audio focus effect can propagate. 1113 uint32_t latency = desc->latency(); 1114 if (shouldWait && desc->isActive(latency * 2) && (waitMs < latency)) { 1115 waitMs = latency; 1116 } 1117 } 1118 } 1119 uint32_t muteWaitMs = setOutputDevice(output, newDevice, force); 1120 1121 // handle special case for sonification while in call 1122 if (isInCall()) { 1123 handleIncallSonification(stream, true, false); 1124 } 1125 1126 // apply volume rules for current stream and device if necessary 1127 checkAndSetVolume(stream, 1128 mStreams[stream].getVolumeIndex(newDevice), 1129 output, 1130 newDevice); 1131 1132 // update the outputs if starting an output with a stream that can affect notification 1133 // routing 1134 handleNotificationRoutingForStream(stream); 1135 if (waitMs > muteWaitMs) { 1136 usleep((waitMs - muteWaitMs) * 2 * 1000); 1137 } 1138 } 1139 return NO_ERROR; 1140} 1141 1142 1143status_t AudioPolicyManager::stopOutput(audio_io_handle_t output, 1144 audio_stream_type_t stream, 1145 int session) 1146{ 1147 ALOGV("stopOutput() output %d, stream %d, session %d", output, stream, session); 1148 ssize_t index = mOutputs.indexOfKey(output); 1149 if (index < 0) { 1150 ALOGW("stopOutput() unknown output %d", output); 1151 return BAD_VALUE; 1152 } 1153 1154 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1155 1156 // handle special case for sonification while in call 1157 if (isInCall()) { 1158 handleIncallSonification(stream, false, false); 1159 } 1160 1161 if (outputDesc->mRefCount[stream] > 0) { 1162 // decrement usage count of this stream on the output 1163 outputDesc->changeRefCount(stream, -1); 1164 // store time at which the stream was stopped - see isStreamActive() 1165 if (outputDesc->mRefCount[stream] == 0) { 1166 outputDesc->mStopTime[stream] = systemTime(); 1167 audio_devices_t newDevice = getNewOutputDevice(output, false /*fromCache*/); 1168 // delay the device switch by twice the latency because stopOutput() is executed when 1169 // the track stop() command is received and at that time the audio track buffer can 1170 // still contain data that needs to be drained. The latency only covers the audio HAL 1171 // and kernel buffers. Also the latency does not always include additional delay in the 1172 // audio path (audio DSP, CODEC ...) 1173 setOutputDevice(output, newDevice, false, outputDesc->mLatency*2); 1174 1175 // force restoring the device selection on other active outputs if it differs from the 1176 // one being selected for this output 1177 for (size_t i = 0; i < mOutputs.size(); i++) { 1178 audio_io_handle_t curOutput = mOutputs.keyAt(i); 1179 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1180 if (curOutput != output && 1181 desc->isActive() && 1182 outputDesc->sharesHwModuleWith(desc) && 1183 (newDevice != desc->device())) { 1184 setOutputDevice(curOutput, 1185 getNewOutputDevice(curOutput, false /*fromCache*/), 1186 true, 1187 outputDesc->mLatency*2); 1188 } 1189 } 1190 // update the outputs if stopping one with a stream that can affect notification routing 1191 handleNotificationRoutingForStream(stream); 1192 } 1193 return NO_ERROR; 1194 } else { 1195 ALOGW("stopOutput() refcount is already 0 for output %d", output); 1196 return INVALID_OPERATION; 1197 } 1198} 1199 1200void AudioPolicyManager::releaseOutput(audio_io_handle_t output) 1201{ 1202 ALOGV("releaseOutput() %d", output); 1203 ssize_t index = mOutputs.indexOfKey(output); 1204 if (index < 0) { 1205 ALOGW("releaseOutput() releasing unknown output %d", output); 1206 return; 1207 } 1208 1209#ifdef AUDIO_POLICY_TEST 1210 int testIndex = testOutputIndex(output); 1211 if (testIndex != 0) { 1212 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1213 if (outputDesc->isActive()) { 1214 mpClientInterface->closeOutput(output); 1215 mOutputs.removeItem(output); 1216 mTestOutputs[testIndex] = 0; 1217 } 1218 return; 1219 } 1220#endif //AUDIO_POLICY_TEST 1221 1222 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(index); 1223 if (desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 1224 if (desc->mDirectOpenCount <= 0) { 1225 ALOGW("releaseOutput() invalid open count %d for output %d", 1226 desc->mDirectOpenCount, output); 1227 return; 1228 } 1229 if (--desc->mDirectOpenCount == 0) { 1230 closeOutput(output); 1231 // If effects where present on the output, audioflinger moved them to the primary 1232 // output by default: move them back to the appropriate output. 1233 audio_io_handle_t dstOutput = getOutputForEffect(); 1234 if (dstOutput != mPrimaryOutput) { 1235 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, mPrimaryOutput, dstOutput); 1236 } 1237 mpClientInterface->onAudioPortListUpdate(); 1238 } 1239 } 1240} 1241 1242 1243audio_io_handle_t AudioPolicyManager::getInput(audio_source_t inputSource, 1244 uint32_t samplingRate, 1245 audio_format_t format, 1246 audio_channel_mask_t channelMask, 1247 audio_session_t session, 1248 audio_input_flags_t flags) 1249{ 1250 ALOGV("getInput() inputSource %d, samplingRate %d, format %d, channelMask %x, session %d, " 1251 "flags %#x", 1252 inputSource, samplingRate, format, channelMask, session, flags); 1253 1254 audio_devices_t device = getDeviceForInputSource(inputSource); 1255 1256 if (device == AUDIO_DEVICE_NONE) { 1257 ALOGW("getInput() could not find device for inputSource %d", inputSource); 1258 return AUDIO_IO_HANDLE_NONE; 1259 } 1260 1261 // adapt channel selection to input source 1262 switch (inputSource) { 1263 case AUDIO_SOURCE_VOICE_UPLINK: 1264 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK; 1265 break; 1266 case AUDIO_SOURCE_VOICE_DOWNLINK: 1267 channelMask = AUDIO_CHANNEL_IN_VOICE_DNLINK; 1268 break; 1269 case AUDIO_SOURCE_VOICE_CALL: 1270 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK | AUDIO_CHANNEL_IN_VOICE_DNLINK; 1271 break; 1272 default: 1273 break; 1274 } 1275 1276 sp<IOProfile> profile = getInputProfile(device, 1277 samplingRate, 1278 format, 1279 channelMask, 1280 flags); 1281 if (profile == 0) { 1282 ALOGW("getInput() could not find profile for device 0x%X, samplingRate %u, format %#x, " 1283 "channelMask 0x%X, flags %#x", 1284 device, samplingRate, format, channelMask, flags); 1285 return AUDIO_IO_HANDLE_NONE; 1286 } 1287 1288 if (profile->mModule->mHandle == 0) { 1289 ALOGE("getInput(): HW module %s not opened", profile->mModule->mName); 1290 return AUDIO_IO_HANDLE_NONE; 1291 } 1292 1293 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 1294 config.sample_rate = samplingRate; 1295 config.channel_mask = channelMask; 1296 config.format = format; 1297 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 1298 1299 bool isSoundTrigger = false; 1300 audio_source_t halInputSource = inputSource; 1301 if (inputSource == AUDIO_SOURCE_HOTWORD) { 1302 ssize_t index = mSoundTriggerSessions.indexOfKey(session); 1303 if (index >= 0) { 1304 input = mSoundTriggerSessions.valueFor(session); 1305 isSoundTrigger = true; 1306 ALOGV("SoundTrigger capture on session %d input %d", session, input); 1307 } else { 1308 halInputSource = AUDIO_SOURCE_VOICE_RECOGNITION; 1309 } 1310 } 1311 status_t status = mpClientInterface->openInput(profile->mModule->mHandle, 1312 &input, 1313 &config, 1314 &device, 1315 String8(""), 1316 halInputSource, 1317 flags); 1318 1319 // only accept input with the exact requested set of parameters 1320 if (status != NO_ERROR || 1321 (samplingRate != config.sample_rate) || 1322 (format != config.format) || 1323 (channelMask != config.channel_mask)) { 1324 ALOGW("getInput() failed opening input: samplingRate %d, format %d, channelMask %x", 1325 samplingRate, format, channelMask); 1326 if (input != AUDIO_IO_HANDLE_NONE) { 1327 mpClientInterface->closeInput(input); 1328 } 1329 return AUDIO_IO_HANDLE_NONE; 1330 } 1331 1332 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(profile); 1333 inputDesc->mInputSource = inputSource; 1334 inputDesc->mRefCount = 0; 1335 inputDesc->mOpenRefCount = 1; 1336 inputDesc->mSamplingRate = samplingRate; 1337 inputDesc->mFormat = format; 1338 inputDesc->mChannelMask = channelMask; 1339 inputDesc->mDevice = device; 1340 inputDesc->mSessions.add(session); 1341 inputDesc->mIsSoundTrigger = isSoundTrigger; 1342 1343 addInput(input, inputDesc); 1344 mpClientInterface->onAudioPortListUpdate(); 1345 return input; 1346} 1347 1348status_t AudioPolicyManager::startInput(audio_io_handle_t input, 1349 audio_session_t session) 1350{ 1351 ALOGV("startInput() input %d", input); 1352 ssize_t index = mInputs.indexOfKey(input); 1353 if (index < 0) { 1354 ALOGW("startInput() unknown input %d", input); 1355 return BAD_VALUE; 1356 } 1357 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1358 1359 index = inputDesc->mSessions.indexOf(session); 1360 if (index < 0) { 1361 ALOGW("startInput() unknown session %d on input %d", session, input); 1362 return BAD_VALUE; 1363 } 1364 1365 // virtual input devices are compatible with other input devices 1366 if (!isVirtualInputDevice(inputDesc->mDevice)) { 1367 1368 // for a non-virtual input device, check if there is another (non-virtual) active input 1369 audio_io_handle_t activeInput = getActiveInput(); 1370 if (activeInput != 0 && activeInput != input) { 1371 1372 // If the already active input uses AUDIO_SOURCE_HOTWORD then it is closed, 1373 // otherwise the active input continues and the new input cannot be started. 1374 sp<AudioInputDescriptor> activeDesc = mInputs.valueFor(activeInput); 1375 if (activeDesc->mInputSource == AUDIO_SOURCE_HOTWORD) { 1376 ALOGW("startInput(%d) preempting low-priority input %d", input, activeInput); 1377 stopInput(activeInput, activeDesc->mSessions.itemAt(0)); 1378 releaseInput(activeInput, activeDesc->mSessions.itemAt(0)); 1379 } else { 1380 ALOGE("startInput(%d) failed: other input %d already started", input, activeInput); 1381 return INVALID_OPERATION; 1382 } 1383 } 1384 } 1385 1386 if (inputDesc->mRefCount == 0) { 1387 if (activeInputsCount() == 0) { 1388 SoundTrigger::setCaptureState(true); 1389 } 1390 setInputDevice(input, getNewInputDevice(input), true /* force */); 1391 1392 // Automatically enable the remote submix output when input is started. 1393 // For remote submix (a virtual device), we open only one input per capture request. 1394 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1395 setDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1396 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, AUDIO_REMOTE_SUBMIX_DEVICE_ADDRESS); 1397 } 1398 } 1399 1400 ALOGV("AudioPolicyManager::startInput() input source = %d", inputDesc->mInputSource); 1401 1402 inputDesc->mRefCount++; 1403 return NO_ERROR; 1404} 1405 1406status_t AudioPolicyManager::stopInput(audio_io_handle_t input, 1407 audio_session_t session) 1408{ 1409 ALOGV("stopInput() input %d", input); 1410 ssize_t index = mInputs.indexOfKey(input); 1411 if (index < 0) { 1412 ALOGW("stopInput() unknown input %d", input); 1413 return BAD_VALUE; 1414 } 1415 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1416 1417 index = inputDesc->mSessions.indexOf(session); 1418 if (index < 0) { 1419 ALOGW("stopInput() unknown session %d on input %d", session, input); 1420 return BAD_VALUE; 1421 } 1422 1423 if (inputDesc->mRefCount == 0) { 1424 ALOGW("stopInput() input %d already stopped", input); 1425 return INVALID_OPERATION; 1426 } 1427 1428 inputDesc->mRefCount--; 1429 if (inputDesc->mRefCount == 0) { 1430 1431 // automatically disable the remote submix output when input is stopped 1432 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1433 setDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1434 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, AUDIO_REMOTE_SUBMIX_DEVICE_ADDRESS); 1435 } 1436 1437 resetInputDevice(input); 1438 1439 if (activeInputsCount() == 0) { 1440 SoundTrigger::setCaptureState(false); 1441 } 1442 } 1443 return NO_ERROR; 1444} 1445 1446void AudioPolicyManager::releaseInput(audio_io_handle_t input, 1447 audio_session_t session) 1448{ 1449 ALOGV("releaseInput() %d", input); 1450 ssize_t index = mInputs.indexOfKey(input); 1451 if (index < 0) { 1452 ALOGW("releaseInput() releasing unknown input %d", input); 1453 return; 1454 } 1455 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1456 ALOG_ASSERT(inputDesc != 0); 1457 1458 index = inputDesc->mSessions.indexOf(session); 1459 if (index < 0) { 1460 ALOGW("releaseInput() unknown session %d on input %d", session, input); 1461 return; 1462 } 1463 inputDesc->mSessions.remove(session); 1464 if (inputDesc->mOpenRefCount == 0) { 1465 ALOGW("releaseInput() invalid open ref count %d", inputDesc->mOpenRefCount); 1466 return; 1467 } 1468 inputDesc->mOpenRefCount--; 1469 if (inputDesc->mOpenRefCount > 0) { 1470 ALOGV("releaseInput() exit > 0"); 1471 return; 1472 } 1473 1474 closeInput(input); 1475 mpClientInterface->onAudioPortListUpdate(); 1476 ALOGV("releaseInput() exit"); 1477} 1478 1479void AudioPolicyManager::closeAllInputs() { 1480 bool patchRemoved = false; 1481 1482 for(size_t input_index = 0; input_index < mInputs.size(); input_index++) { 1483 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(input_index); 1484 ssize_t patch_index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 1485 if (patch_index >= 0) { 1486 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(patch_index); 1487 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 1488 mAudioPatches.removeItemsAt(patch_index); 1489 patchRemoved = true; 1490 } 1491 mpClientInterface->closeInput(mInputs.keyAt(input_index)); 1492 } 1493 mInputs.clear(); 1494 nextAudioPortGeneration(); 1495 1496 if (patchRemoved) { 1497 mpClientInterface->onAudioPatchListUpdate(); 1498 } 1499} 1500 1501void AudioPolicyManager::initStreamVolume(audio_stream_type_t stream, 1502 int indexMin, 1503 int indexMax) 1504{ 1505 ALOGV("initStreamVolume() stream %d, min %d, max %d", stream , indexMin, indexMax); 1506 if (indexMin < 0 || indexMin >= indexMax) { 1507 ALOGW("initStreamVolume() invalid index limits for stream %d, min %d, max %d", stream , indexMin, indexMax); 1508 return; 1509 } 1510 mStreams[stream].mIndexMin = indexMin; 1511 mStreams[stream].mIndexMax = indexMax; 1512} 1513 1514status_t AudioPolicyManager::setStreamVolumeIndex(audio_stream_type_t stream, 1515 int index, 1516 audio_devices_t device) 1517{ 1518 1519 if ((index < mStreams[stream].mIndexMin) || (index > mStreams[stream].mIndexMax)) { 1520 return BAD_VALUE; 1521 } 1522 if (!audio_is_output_device(device)) { 1523 return BAD_VALUE; 1524 } 1525 1526 // Force max volume if stream cannot be muted 1527 if (!mStreams[stream].mCanBeMuted) index = mStreams[stream].mIndexMax; 1528 1529 ALOGV("setStreamVolumeIndex() stream %d, device %04x, index %d", 1530 stream, device, index); 1531 1532 // if device is AUDIO_DEVICE_OUT_DEFAULT set default value and 1533 // clear all device specific values 1534 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1535 mStreams[stream].mIndexCur.clear(); 1536 } 1537 mStreams[stream].mIndexCur.add(device, index); 1538 1539 // compute and apply stream volume on all outputs according to connected device 1540 status_t status = NO_ERROR; 1541 for (size_t i = 0; i < mOutputs.size(); i++) { 1542 audio_devices_t curDevice = 1543 getDeviceForVolume(mOutputs.valueAt(i)->device()); 1544 if ((device == AUDIO_DEVICE_OUT_DEFAULT) || (device == curDevice)) { 1545 status_t volStatus = checkAndSetVolume(stream, index, mOutputs.keyAt(i), curDevice); 1546 if (volStatus != NO_ERROR) { 1547 status = volStatus; 1548 } 1549 } 1550 } 1551 return status; 1552} 1553 1554status_t AudioPolicyManager::getStreamVolumeIndex(audio_stream_type_t stream, 1555 int *index, 1556 audio_devices_t device) 1557{ 1558 if (index == NULL) { 1559 return BAD_VALUE; 1560 } 1561 if (!audio_is_output_device(device)) { 1562 return BAD_VALUE; 1563 } 1564 // if device is AUDIO_DEVICE_OUT_DEFAULT, return volume for device corresponding to 1565 // the strategy the stream belongs to. 1566 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1567 device = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1568 } 1569 device = getDeviceForVolume(device); 1570 1571 *index = mStreams[stream].getVolumeIndex(device); 1572 ALOGV("getStreamVolumeIndex() stream %d device %08x index %d", stream, device, *index); 1573 return NO_ERROR; 1574} 1575 1576audio_io_handle_t AudioPolicyManager::selectOutputForEffects( 1577 const SortedVector<audio_io_handle_t>& outputs) 1578{ 1579 // select one output among several suitable for global effects. 1580 // The priority is as follows: 1581 // 1: An offloaded output. If the effect ends up not being offloadable, 1582 // AudioFlinger will invalidate the track and the offloaded output 1583 // will be closed causing the effect to be moved to a PCM output. 1584 // 2: A deep buffer output 1585 // 3: the first output in the list 1586 1587 if (outputs.size() == 0) { 1588 return 0; 1589 } 1590 1591 audio_io_handle_t outputOffloaded = 0; 1592 audio_io_handle_t outputDeepBuffer = 0; 1593 1594 for (size_t i = 0; i < outputs.size(); i++) { 1595 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 1596 ALOGV("selectOutputForEffects outputs[%zu] flags %x", i, desc->mFlags); 1597 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1598 outputOffloaded = outputs[i]; 1599 } 1600 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) != 0) { 1601 outputDeepBuffer = outputs[i]; 1602 } 1603 } 1604 1605 ALOGV("selectOutputForEffects outputOffloaded %d outputDeepBuffer %d", 1606 outputOffloaded, outputDeepBuffer); 1607 if (outputOffloaded != 0) { 1608 return outputOffloaded; 1609 } 1610 if (outputDeepBuffer != 0) { 1611 return outputDeepBuffer; 1612 } 1613 1614 return outputs[0]; 1615} 1616 1617audio_io_handle_t AudioPolicyManager::getOutputForEffect(const effect_descriptor_t *desc) 1618{ 1619 // apply simple rule where global effects are attached to the same output as MUSIC streams 1620 1621 routing_strategy strategy = getStrategy(AUDIO_STREAM_MUSIC); 1622 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 1623 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(device, mOutputs); 1624 1625 audio_io_handle_t output = selectOutputForEffects(dstOutputs); 1626 ALOGV("getOutputForEffect() got output %d for fx %s flags %x", 1627 output, (desc == NULL) ? "unspecified" : desc->name, (desc == NULL) ? 0 : desc->flags); 1628 1629 return output; 1630} 1631 1632status_t AudioPolicyManager::registerEffect(const effect_descriptor_t *desc, 1633 audio_io_handle_t io, 1634 uint32_t strategy, 1635 int session, 1636 int id) 1637{ 1638 ssize_t index = mOutputs.indexOfKey(io); 1639 if (index < 0) { 1640 index = mInputs.indexOfKey(io); 1641 if (index < 0) { 1642 ALOGW("registerEffect() unknown io %d", io); 1643 return INVALID_OPERATION; 1644 } 1645 } 1646 1647 if (mTotalEffectsMemory + desc->memoryUsage > getMaxEffectsMemory()) { 1648 ALOGW("registerEffect() memory limit exceeded for Fx %s, Memory %d KB", 1649 desc->name, desc->memoryUsage); 1650 return INVALID_OPERATION; 1651 } 1652 mTotalEffectsMemory += desc->memoryUsage; 1653 ALOGV("registerEffect() effect %s, io %d, strategy %d session %d id %d", 1654 desc->name, io, strategy, session, id); 1655 ALOGV("registerEffect() memory %d, total memory %d", desc->memoryUsage, mTotalEffectsMemory); 1656 1657 sp<EffectDescriptor> effectDesc = new EffectDescriptor(); 1658 memcpy (&effectDesc->mDesc, desc, sizeof(effect_descriptor_t)); 1659 effectDesc->mIo = io; 1660 effectDesc->mStrategy = (routing_strategy)strategy; 1661 effectDesc->mSession = session; 1662 effectDesc->mEnabled = false; 1663 1664 mEffects.add(id, effectDesc); 1665 1666 return NO_ERROR; 1667} 1668 1669status_t AudioPolicyManager::unregisterEffect(int id) 1670{ 1671 ssize_t index = mEffects.indexOfKey(id); 1672 if (index < 0) { 1673 ALOGW("unregisterEffect() unknown effect ID %d", id); 1674 return INVALID_OPERATION; 1675 } 1676 1677 sp<EffectDescriptor> effectDesc = mEffects.valueAt(index); 1678 1679 setEffectEnabled(effectDesc, false); 1680 1681 if (mTotalEffectsMemory < effectDesc->mDesc.memoryUsage) { 1682 ALOGW("unregisterEffect() memory %d too big for total %d", 1683 effectDesc->mDesc.memoryUsage, mTotalEffectsMemory); 1684 effectDesc->mDesc.memoryUsage = mTotalEffectsMemory; 1685 } 1686 mTotalEffectsMemory -= effectDesc->mDesc.memoryUsage; 1687 ALOGV("unregisterEffect() effect %s, ID %d, memory %d total memory %d", 1688 effectDesc->mDesc.name, id, effectDesc->mDesc.memoryUsage, mTotalEffectsMemory); 1689 1690 mEffects.removeItem(id); 1691 1692 return NO_ERROR; 1693} 1694 1695status_t AudioPolicyManager::setEffectEnabled(int id, bool enabled) 1696{ 1697 ssize_t index = mEffects.indexOfKey(id); 1698 if (index < 0) { 1699 ALOGW("unregisterEffect() unknown effect ID %d", id); 1700 return INVALID_OPERATION; 1701 } 1702 1703 return setEffectEnabled(mEffects.valueAt(index), enabled); 1704} 1705 1706status_t AudioPolicyManager::setEffectEnabled(const sp<EffectDescriptor>& effectDesc, bool enabled) 1707{ 1708 if (enabled == effectDesc->mEnabled) { 1709 ALOGV("setEffectEnabled(%s) effect already %s", 1710 enabled?"true":"false", enabled?"enabled":"disabled"); 1711 return INVALID_OPERATION; 1712 } 1713 1714 if (enabled) { 1715 if (mTotalEffectsCpuLoad + effectDesc->mDesc.cpuLoad > getMaxEffectsCpuLoad()) { 1716 ALOGW("setEffectEnabled(true) CPU Load limit exceeded for Fx %s, CPU %f MIPS", 1717 effectDesc->mDesc.name, (float)effectDesc->mDesc.cpuLoad/10); 1718 return INVALID_OPERATION; 1719 } 1720 mTotalEffectsCpuLoad += effectDesc->mDesc.cpuLoad; 1721 ALOGV("setEffectEnabled(true) total CPU %d", mTotalEffectsCpuLoad); 1722 } else { 1723 if (mTotalEffectsCpuLoad < effectDesc->mDesc.cpuLoad) { 1724 ALOGW("setEffectEnabled(false) CPU load %d too high for total %d", 1725 effectDesc->mDesc.cpuLoad, mTotalEffectsCpuLoad); 1726 effectDesc->mDesc.cpuLoad = mTotalEffectsCpuLoad; 1727 } 1728 mTotalEffectsCpuLoad -= effectDesc->mDesc.cpuLoad; 1729 ALOGV("setEffectEnabled(false) total CPU %d", mTotalEffectsCpuLoad); 1730 } 1731 effectDesc->mEnabled = enabled; 1732 return NO_ERROR; 1733} 1734 1735bool AudioPolicyManager::isNonOffloadableEffectEnabled() 1736{ 1737 for (size_t i = 0; i < mEffects.size(); i++) { 1738 sp<EffectDescriptor> effectDesc = mEffects.valueAt(i); 1739 if (effectDesc->mEnabled && (effectDesc->mStrategy == STRATEGY_MEDIA) && 1740 ((effectDesc->mDesc.flags & EFFECT_FLAG_OFFLOAD_SUPPORTED) == 0)) { 1741 ALOGV("isNonOffloadableEffectEnabled() non offloadable effect %s enabled on session %d", 1742 effectDesc->mDesc.name, effectDesc->mSession); 1743 return true; 1744 } 1745 } 1746 return false; 1747} 1748 1749bool AudioPolicyManager::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const 1750{ 1751 nsecs_t sysTime = systemTime(); 1752 for (size_t i = 0; i < mOutputs.size(); i++) { 1753 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 1754 if (outputDesc->isStreamActive(stream, inPastMs, sysTime)) { 1755 return true; 1756 } 1757 } 1758 return false; 1759} 1760 1761bool AudioPolicyManager::isStreamActiveRemotely(audio_stream_type_t stream, 1762 uint32_t inPastMs) const 1763{ 1764 nsecs_t sysTime = systemTime(); 1765 for (size_t i = 0; i < mOutputs.size(); i++) { 1766 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 1767 if (((outputDesc->device() & APM_AUDIO_OUT_DEVICE_REMOTE_ALL) != 0) && 1768 outputDesc->isStreamActive(stream, inPastMs, sysTime)) { 1769 return true; 1770 } 1771 } 1772 return false; 1773} 1774 1775bool AudioPolicyManager::isSourceActive(audio_source_t source) const 1776{ 1777 for (size_t i = 0; i < mInputs.size(); i++) { 1778 const sp<AudioInputDescriptor> inputDescriptor = mInputs.valueAt(i); 1779 if ((inputDescriptor->mInputSource == (int)source || 1780 (source == AUDIO_SOURCE_VOICE_RECOGNITION && 1781 inputDescriptor->mInputSource == AUDIO_SOURCE_HOTWORD)) 1782 && (inputDescriptor->mRefCount > 0)) { 1783 return true; 1784 } 1785 } 1786 return false; 1787} 1788 1789 1790status_t AudioPolicyManager::dump(int fd) 1791{ 1792 const size_t SIZE = 256; 1793 char buffer[SIZE]; 1794 String8 result; 1795 1796 snprintf(buffer, SIZE, "\nAudioPolicyManager Dump: %p\n", this); 1797 result.append(buffer); 1798 1799 snprintf(buffer, SIZE, " Primary Output: %d\n", mPrimaryOutput); 1800 result.append(buffer); 1801 snprintf(buffer, SIZE, " Phone state: %d\n", mPhoneState); 1802 result.append(buffer); 1803 snprintf(buffer, SIZE, " Force use for communications %d\n", 1804 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]); 1805 result.append(buffer); 1806 snprintf(buffer, SIZE, " Force use for media %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA]); 1807 result.append(buffer); 1808 snprintf(buffer, SIZE, " Force use for record %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD]); 1809 result.append(buffer); 1810 snprintf(buffer, SIZE, " Force use for dock %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK]); 1811 result.append(buffer); 1812 snprintf(buffer, SIZE, " Force use for system %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM]); 1813 result.append(buffer); 1814 snprintf(buffer, SIZE, " Force use for hdmi system audio %d\n", 1815 mForceUse[AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO]); 1816 result.append(buffer); 1817 1818 snprintf(buffer, SIZE, " Available output devices:\n"); 1819 result.append(buffer); 1820 write(fd, result.string(), result.size()); 1821 for (size_t i = 0; i < mAvailableOutputDevices.size(); i++) { 1822 mAvailableOutputDevices[i]->dump(fd, 2, i); 1823 } 1824 snprintf(buffer, SIZE, "\n Available input devices:\n"); 1825 write(fd, buffer, strlen(buffer)); 1826 for (size_t i = 0; i < mAvailableInputDevices.size(); i++) { 1827 mAvailableInputDevices[i]->dump(fd, 2, i); 1828 } 1829 1830 snprintf(buffer, SIZE, "\nHW Modules dump:\n"); 1831 write(fd, buffer, strlen(buffer)); 1832 for (size_t i = 0; i < mHwModules.size(); i++) { 1833 snprintf(buffer, SIZE, "- HW Module %zu:\n", i + 1); 1834 write(fd, buffer, strlen(buffer)); 1835 mHwModules[i]->dump(fd); 1836 } 1837 1838 snprintf(buffer, SIZE, "\nOutputs dump:\n"); 1839 write(fd, buffer, strlen(buffer)); 1840 for (size_t i = 0; i < mOutputs.size(); i++) { 1841 snprintf(buffer, SIZE, "- Output %d dump:\n", mOutputs.keyAt(i)); 1842 write(fd, buffer, strlen(buffer)); 1843 mOutputs.valueAt(i)->dump(fd); 1844 } 1845 1846 snprintf(buffer, SIZE, "\nInputs dump:\n"); 1847 write(fd, buffer, strlen(buffer)); 1848 for (size_t i = 0; i < mInputs.size(); i++) { 1849 snprintf(buffer, SIZE, "- Input %d dump:\n", mInputs.keyAt(i)); 1850 write(fd, buffer, strlen(buffer)); 1851 mInputs.valueAt(i)->dump(fd); 1852 } 1853 1854 snprintf(buffer, SIZE, "\nStreams dump:\n"); 1855 write(fd, buffer, strlen(buffer)); 1856 snprintf(buffer, SIZE, 1857 " Stream Can be muted Index Min Index Max Index Cur [device : index]...\n"); 1858 write(fd, buffer, strlen(buffer)); 1859 for (size_t i = 0; i < AUDIO_STREAM_CNT; i++) { 1860 snprintf(buffer, SIZE, " %02zu ", i); 1861 write(fd, buffer, strlen(buffer)); 1862 mStreams[i].dump(fd); 1863 } 1864 1865 snprintf(buffer, SIZE, "\nTotal Effects CPU: %f MIPS, Total Effects memory: %d KB\n", 1866 (float)mTotalEffectsCpuLoad/10, mTotalEffectsMemory); 1867 write(fd, buffer, strlen(buffer)); 1868 1869 snprintf(buffer, SIZE, "Registered effects:\n"); 1870 write(fd, buffer, strlen(buffer)); 1871 for (size_t i = 0; i < mEffects.size(); i++) { 1872 snprintf(buffer, SIZE, "- Effect %d dump:\n", mEffects.keyAt(i)); 1873 write(fd, buffer, strlen(buffer)); 1874 mEffects.valueAt(i)->dump(fd); 1875 } 1876 1877 snprintf(buffer, SIZE, "\nAudio Patches:\n"); 1878 write(fd, buffer, strlen(buffer)); 1879 for (size_t i = 0; i < mAudioPatches.size(); i++) { 1880 mAudioPatches[i]->dump(fd, 2, i); 1881 } 1882 1883 return NO_ERROR; 1884} 1885 1886// This function checks for the parameters which can be offloaded. 1887// This can be enhanced depending on the capability of the DSP and policy 1888// of the system. 1889bool AudioPolicyManager::isOffloadSupported(const audio_offload_info_t& offloadInfo) 1890{ 1891 ALOGV("isOffloadSupported: SR=%u, CM=0x%x, Format=0x%x, StreamType=%d," 1892 " BitRate=%u, duration=%" PRId64 " us, has_video=%d", 1893 offloadInfo.sample_rate, offloadInfo.channel_mask, 1894 offloadInfo.format, 1895 offloadInfo.stream_type, offloadInfo.bit_rate, offloadInfo.duration_us, 1896 offloadInfo.has_video); 1897 1898 // Check if offload has been disabled 1899 char propValue[PROPERTY_VALUE_MAX]; 1900 if (property_get("audio.offload.disable", propValue, "0")) { 1901 if (atoi(propValue) != 0) { 1902 ALOGV("offload disabled by audio.offload.disable=%s", propValue ); 1903 return false; 1904 } 1905 } 1906 1907 // Check if stream type is music, then only allow offload as of now. 1908 if (offloadInfo.stream_type != AUDIO_STREAM_MUSIC) 1909 { 1910 ALOGV("isOffloadSupported: stream_type != MUSIC, returning false"); 1911 return false; 1912 } 1913 1914 //TODO: enable audio offloading with video when ready 1915 if (offloadInfo.has_video) 1916 { 1917 ALOGV("isOffloadSupported: has_video == true, returning false"); 1918 return false; 1919 } 1920 1921 //If duration is less than minimum value defined in property, return false 1922 if (property_get("audio.offload.min.duration.secs", propValue, NULL)) { 1923 if (offloadInfo.duration_us < (atoi(propValue) * 1000000 )) { 1924 ALOGV("Offload denied by duration < audio.offload.min.duration.secs(=%s)", propValue); 1925 return false; 1926 } 1927 } else if (offloadInfo.duration_us < OFFLOAD_DEFAULT_MIN_DURATION_SECS * 1000000) { 1928 ALOGV("Offload denied by duration < default min(=%u)", OFFLOAD_DEFAULT_MIN_DURATION_SECS); 1929 return false; 1930 } 1931 1932 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 1933 // creating an offloaded track and tearing it down immediately after start when audioflinger 1934 // detects there is an active non offloadable effect. 1935 // FIXME: We should check the audio session here but we do not have it in this context. 1936 // This may prevent offloading in rare situations where effects are left active by apps 1937 // in the background. 1938 if (isNonOffloadableEffectEnabled()) { 1939 return false; 1940 } 1941 1942 // See if there is a profile to support this. 1943 // AUDIO_DEVICE_NONE 1944 sp<IOProfile> profile = getProfileForDirectOutput(AUDIO_DEVICE_NONE /*ignore device */, 1945 offloadInfo.sample_rate, 1946 offloadInfo.format, 1947 offloadInfo.channel_mask, 1948 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD); 1949 ALOGV("isOffloadSupported() profile %sfound", profile != 0 ? "" : "NOT "); 1950 return (profile != 0); 1951} 1952 1953status_t AudioPolicyManager::listAudioPorts(audio_port_role_t role, 1954 audio_port_type_t type, 1955 unsigned int *num_ports, 1956 struct audio_port *ports, 1957 unsigned int *generation) 1958{ 1959 if (num_ports == NULL || (*num_ports != 0 && ports == NULL) || 1960 generation == NULL) { 1961 return BAD_VALUE; 1962 } 1963 ALOGV("listAudioPorts() role %d type %d num_ports %d ports %p", role, type, *num_ports, ports); 1964 if (ports == NULL) { 1965 *num_ports = 0; 1966 } 1967 1968 size_t portsWritten = 0; 1969 size_t portsMax = *num_ports; 1970 *num_ports = 0; 1971 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_DEVICE) { 1972 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 1973 for (size_t i = 0; 1974 i < mAvailableOutputDevices.size() && portsWritten < portsMax; i++) { 1975 mAvailableOutputDevices[i]->toAudioPort(&ports[portsWritten++]); 1976 } 1977 *num_ports += mAvailableOutputDevices.size(); 1978 } 1979 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 1980 for (size_t i = 0; 1981 i < mAvailableInputDevices.size() && portsWritten < portsMax; i++) { 1982 mAvailableInputDevices[i]->toAudioPort(&ports[portsWritten++]); 1983 } 1984 *num_ports += mAvailableInputDevices.size(); 1985 } 1986 } 1987 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_MIX) { 1988 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 1989 for (size_t i = 0; i < mInputs.size() && portsWritten < portsMax; i++) { 1990 mInputs[i]->toAudioPort(&ports[portsWritten++]); 1991 } 1992 *num_ports += mInputs.size(); 1993 } 1994 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 1995 size_t numOutputs = 0; 1996 for (size_t i = 0; i < mOutputs.size(); i++) { 1997 if (!mOutputs[i]->isDuplicated()) { 1998 numOutputs++; 1999 if (portsWritten < portsMax) { 2000 mOutputs[i]->toAudioPort(&ports[portsWritten++]); 2001 } 2002 } 2003 } 2004 *num_ports += numOutputs; 2005 } 2006 } 2007 *generation = curAudioPortGeneration(); 2008 ALOGV("listAudioPorts() got %zu ports needed %d", portsWritten, *num_ports); 2009 return NO_ERROR; 2010} 2011 2012status_t AudioPolicyManager::getAudioPort(struct audio_port *port __unused) 2013{ 2014 return NO_ERROR; 2015} 2016 2017sp<AudioPolicyManager::AudioOutputDescriptor> AudioPolicyManager::getOutputFromId( 2018 audio_port_handle_t id) const 2019{ 2020 sp<AudioOutputDescriptor> outputDesc = NULL; 2021 for (size_t i = 0; i < mOutputs.size(); i++) { 2022 outputDesc = mOutputs.valueAt(i); 2023 if (outputDesc->mId == id) { 2024 break; 2025 } 2026 } 2027 return outputDesc; 2028} 2029 2030sp<AudioPolicyManager::AudioInputDescriptor> AudioPolicyManager::getInputFromId( 2031 audio_port_handle_t id) const 2032{ 2033 sp<AudioInputDescriptor> inputDesc = NULL; 2034 for (size_t i = 0; i < mInputs.size(); i++) { 2035 inputDesc = mInputs.valueAt(i); 2036 if (inputDesc->mId == id) { 2037 break; 2038 } 2039 } 2040 return inputDesc; 2041} 2042 2043sp <AudioPolicyManager::HwModule> AudioPolicyManager::getModuleForDevice( 2044 audio_devices_t device) const 2045{ 2046 sp <HwModule> module; 2047 2048 for (size_t i = 0; i < mHwModules.size(); i++) { 2049 if (mHwModules[i]->mHandle == 0) { 2050 continue; 2051 } 2052 if (audio_is_output_device(device)) { 2053 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 2054 { 2055 if (mHwModules[i]->mOutputProfiles[j]->mSupportedDevices.types() & device) { 2056 return mHwModules[i]; 2057 } 2058 } 2059 } else { 2060 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) { 2061 if (mHwModules[i]->mInputProfiles[j]->mSupportedDevices.types() & 2062 device & ~AUDIO_DEVICE_BIT_IN) { 2063 return mHwModules[i]; 2064 } 2065 } 2066 } 2067 } 2068 return module; 2069} 2070 2071sp <AudioPolicyManager::HwModule> AudioPolicyManager::getModuleFromName(const char *name) const 2072{ 2073 sp <HwModule> module; 2074 2075 for (size_t i = 0; i < mHwModules.size(); i++) 2076 { 2077 if (strcmp(mHwModules[i]->mName, name) == 0) { 2078 return mHwModules[i]; 2079 } 2080 } 2081 return module; 2082} 2083 2084audio_devices_t AudioPolicyManager::availablePrimaryOutputDevices() 2085{ 2086 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 2087 audio_devices_t devices = outputDesc->mProfile->mSupportedDevices.types(); 2088 return devices & mAvailableOutputDevices.types(); 2089} 2090 2091audio_devices_t AudioPolicyManager::availablePrimaryInputDevices() 2092{ 2093 audio_module_handle_t primaryHandle = 2094 mOutputs.valueFor(mPrimaryOutput)->mProfile->mModule->mHandle; 2095 audio_devices_t devices = AUDIO_DEVICE_NONE; 2096 for (size_t i = 0; i < mAvailableInputDevices.size(); i++) { 2097 if (mAvailableInputDevices[i]->mModule->mHandle == primaryHandle) { 2098 devices |= mAvailableInputDevices[i]->mDeviceType; 2099 } 2100 } 2101 return devices; 2102} 2103 2104status_t AudioPolicyManager::createAudioPatch(const struct audio_patch *patch, 2105 audio_patch_handle_t *handle, 2106 uid_t uid) 2107{ 2108 ALOGV("createAudioPatch()"); 2109 2110 if (handle == NULL || patch == NULL) { 2111 return BAD_VALUE; 2112 } 2113 ALOGV("createAudioPatch() num sources %d num sinks %d", patch->num_sources, patch->num_sinks); 2114 2115 if (patch->num_sources == 0 || patch->num_sources > AUDIO_PATCH_PORTS_MAX || 2116 patch->num_sinks == 0 || patch->num_sinks > AUDIO_PATCH_PORTS_MAX) { 2117 return BAD_VALUE; 2118 } 2119 // only one source per audio patch supported for now 2120 if (patch->num_sources > 1) { 2121 return INVALID_OPERATION; 2122 } 2123 2124 if (patch->sources[0].role != AUDIO_PORT_ROLE_SOURCE) { 2125 return INVALID_OPERATION; 2126 } 2127 for (size_t i = 0; i < patch->num_sinks; i++) { 2128 if (patch->sinks[i].role != AUDIO_PORT_ROLE_SINK) { 2129 return INVALID_OPERATION; 2130 } 2131 } 2132 2133 sp<AudioPatch> patchDesc; 2134 ssize_t index = mAudioPatches.indexOfKey(*handle); 2135 2136 ALOGV("createAudioPatch source id %d role %d type %d", patch->sources[0].id, 2137 patch->sources[0].role, 2138 patch->sources[0].type); 2139#if LOG_NDEBUG == 0 2140 for (size_t i = 0; i < patch->num_sinks; i++) { 2141 ALOGV("createAudioPatch sink %d: id %d role %d type %d", i, patch->sinks[i].id, 2142 patch->sinks[i].role, 2143 patch->sinks[i].type); 2144 } 2145#endif 2146 2147 if (index >= 0) { 2148 patchDesc = mAudioPatches.valueAt(index); 2149 ALOGV("createAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 2150 mUidCached, patchDesc->mUid, uid); 2151 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 2152 return INVALID_OPERATION; 2153 } 2154 } else { 2155 *handle = 0; 2156 } 2157 2158 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 2159 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(patch->sources[0].id); 2160 if (outputDesc == NULL) { 2161 ALOGV("createAudioPatch() output not found for id %d", patch->sources[0].id); 2162 return BAD_VALUE; 2163 } 2164 ALOG_ASSERT(!outputDesc->isDuplicated(),"duplicated output %d in source in ports", 2165 outputDesc->mIoHandle); 2166 if (patchDesc != 0) { 2167 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 2168 ALOGV("createAudioPatch() source id differs for patch current id %d new id %d", 2169 patchDesc->mPatch.sources[0].id, patch->sources[0].id); 2170 return BAD_VALUE; 2171 } 2172 } 2173 DeviceVector devices; 2174 for (size_t i = 0; i < patch->num_sinks; i++) { 2175 // Only support mix to devices connection 2176 // TODO add support for mix to mix connection 2177 if (patch->sinks[i].type != AUDIO_PORT_TYPE_DEVICE) { 2178 ALOGV("createAudioPatch() source mix but sink is not a device"); 2179 return INVALID_OPERATION; 2180 } 2181 sp<DeviceDescriptor> devDesc = 2182 mAvailableOutputDevices.getDeviceFromId(patch->sinks[i].id); 2183 if (devDesc == 0) { 2184 ALOGV("createAudioPatch() out device not found for id %d", patch->sinks[i].id); 2185 return BAD_VALUE; 2186 } 2187 2188 if (!outputDesc->mProfile->isCompatibleProfile(devDesc->mDeviceType, 2189 patch->sources[0].sample_rate, 2190 NULL, // updatedSamplingRate 2191 patch->sources[0].format, 2192 patch->sources[0].channel_mask, 2193 AUDIO_OUTPUT_FLAG_NONE /*FIXME*/)) { 2194 ALOGV("createAudioPatch() profile not supported for device %08x", 2195 devDesc->mDeviceType); 2196 return INVALID_OPERATION; 2197 } 2198 devices.add(devDesc); 2199 } 2200 if (devices.size() == 0) { 2201 return INVALID_OPERATION; 2202 } 2203 2204 // TODO: reconfigure output format and channels here 2205 ALOGV("createAudioPatch() setting device %08x on output %d", 2206 devices.types(), outputDesc->mIoHandle); 2207 setOutputDevice(outputDesc->mIoHandle, devices.types(), true, 0, handle); 2208 index = mAudioPatches.indexOfKey(*handle); 2209 if (index >= 0) { 2210 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 2211 ALOGW("createAudioPatch() setOutputDevice() did not reuse the patch provided"); 2212 } 2213 patchDesc = mAudioPatches.valueAt(index); 2214 patchDesc->mUid = uid; 2215 ALOGV("createAudioPatch() success"); 2216 } else { 2217 ALOGW("createAudioPatch() setOutputDevice() failed to create a patch"); 2218 return INVALID_OPERATION; 2219 } 2220 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 2221 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 2222 // input device to input mix connection 2223 // only one sink supported when connecting an input device to a mix 2224 if (patch->num_sinks > 1) { 2225 return INVALID_OPERATION; 2226 } 2227 sp<AudioInputDescriptor> inputDesc = getInputFromId(patch->sinks[0].id); 2228 if (inputDesc == NULL) { 2229 return BAD_VALUE; 2230 } 2231 if (patchDesc != 0) { 2232 if (patchDesc->mPatch.sinks[0].id != patch->sinks[0].id) { 2233 return BAD_VALUE; 2234 } 2235 } 2236 sp<DeviceDescriptor> devDesc = 2237 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 2238 if (devDesc == 0) { 2239 return BAD_VALUE; 2240 } 2241 2242 if (!inputDesc->mProfile->isCompatibleProfile(devDesc->mDeviceType, 2243 patch->sinks[0].sample_rate, 2244 NULL, /*updatedSampleRate*/ 2245 patch->sinks[0].format, 2246 patch->sinks[0].channel_mask, 2247 // FIXME for the parameter type, 2248 // and the NONE 2249 (audio_output_flags_t) 2250 AUDIO_INPUT_FLAG_NONE)) { 2251 return INVALID_OPERATION; 2252 } 2253 // TODO: reconfigure output format and channels here 2254 ALOGV("createAudioPatch() setting device %08x on output %d", 2255 devDesc->mDeviceType, inputDesc->mIoHandle); 2256 setInputDevice(inputDesc->mIoHandle, devDesc->mDeviceType, true, handle); 2257 index = mAudioPatches.indexOfKey(*handle); 2258 if (index >= 0) { 2259 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 2260 ALOGW("createAudioPatch() setInputDevice() did not reuse the patch provided"); 2261 } 2262 patchDesc = mAudioPatches.valueAt(index); 2263 patchDesc->mUid = uid; 2264 ALOGV("createAudioPatch() success"); 2265 } else { 2266 ALOGW("createAudioPatch() setInputDevice() failed to create a patch"); 2267 return INVALID_OPERATION; 2268 } 2269 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2270 // device to device connection 2271 if (patchDesc != 0) { 2272 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 2273 return BAD_VALUE; 2274 } 2275 } 2276 sp<DeviceDescriptor> srcDeviceDesc = 2277 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 2278 2279 //update source and sink with our own data as the data passed in the patch may 2280 // be incomplete. 2281 struct audio_patch newPatch = *patch; 2282 srcDeviceDesc->toAudioPortConfig(&newPatch.sources[0], &patch->sources[0]); 2283 if (srcDeviceDesc == 0) { 2284 return BAD_VALUE; 2285 } 2286 2287 for (size_t i = 0; i < patch->num_sinks; i++) { 2288 if (patch->sinks[i].type != AUDIO_PORT_TYPE_DEVICE) { 2289 ALOGV("createAudioPatch() source device but one sink is not a device"); 2290 return INVALID_OPERATION; 2291 } 2292 2293 sp<DeviceDescriptor> sinkDeviceDesc = 2294 mAvailableOutputDevices.getDeviceFromId(patch->sinks[i].id); 2295 if (sinkDeviceDesc == 0) { 2296 return BAD_VALUE; 2297 } 2298 sinkDeviceDesc->toAudioPortConfig(&newPatch.sinks[i], &patch->sinks[i]); 2299 2300 if (srcDeviceDesc->mModule != sinkDeviceDesc->mModule) { 2301 // only one sink supported when connected devices across HW modules 2302 if (patch->num_sinks > 1) { 2303 return INVALID_OPERATION; 2304 } 2305 SortedVector<audio_io_handle_t> outputs = 2306 getOutputsForDevice(sinkDeviceDesc->mDeviceType, 2307 mOutputs); 2308 // if the sink device is reachable via an opened output stream, request to go via 2309 // this output stream by adding a second source to the patch description 2310 audio_io_handle_t output = selectOutput(outputs, AUDIO_OUTPUT_FLAG_NONE); 2311 if (output != AUDIO_IO_HANDLE_NONE) { 2312 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 2313 if (outputDesc->isDuplicated()) { 2314 return INVALID_OPERATION; 2315 } 2316 outputDesc->toAudioPortConfig(&newPatch.sources[1], &patch->sources[0]); 2317 newPatch.num_sources = 2; 2318 } 2319 } 2320 } 2321 // TODO: check from routing capabilities in config file and other conflicting patches 2322 2323 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 2324 if (index >= 0) { 2325 afPatchHandle = patchDesc->mAfPatchHandle; 2326 } 2327 2328 status_t status = mpClientInterface->createAudioPatch(&newPatch, 2329 &afPatchHandle, 2330 0); 2331 ALOGV("createAudioPatch() patch panel returned %d patchHandle %d", 2332 status, afPatchHandle); 2333 if (status == NO_ERROR) { 2334 if (index < 0) { 2335 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 2336 &newPatch, uid); 2337 addAudioPatch(patchDesc->mHandle, patchDesc); 2338 } else { 2339 patchDesc->mPatch = newPatch; 2340 } 2341 patchDesc->mAfPatchHandle = afPatchHandle; 2342 *handle = patchDesc->mHandle; 2343 nextAudioPortGeneration(); 2344 mpClientInterface->onAudioPatchListUpdate(); 2345 } else { 2346 ALOGW("createAudioPatch() patch panel could not connect device patch, error %d", 2347 status); 2348 return INVALID_OPERATION; 2349 } 2350 } else { 2351 return BAD_VALUE; 2352 } 2353 } else { 2354 return BAD_VALUE; 2355 } 2356 return NO_ERROR; 2357} 2358 2359status_t AudioPolicyManager::releaseAudioPatch(audio_patch_handle_t handle, 2360 uid_t uid) 2361{ 2362 ALOGV("releaseAudioPatch() patch %d", handle); 2363 2364 ssize_t index = mAudioPatches.indexOfKey(handle); 2365 2366 if (index < 0) { 2367 return BAD_VALUE; 2368 } 2369 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 2370 ALOGV("releaseAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 2371 mUidCached, patchDesc->mUid, uid); 2372 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 2373 return INVALID_OPERATION; 2374 } 2375 2376 struct audio_patch *patch = &patchDesc->mPatch; 2377 patchDesc->mUid = mUidCached; 2378 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 2379 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(patch->sources[0].id); 2380 if (outputDesc == NULL) { 2381 ALOGV("releaseAudioPatch() output not found for id %d", patch->sources[0].id); 2382 return BAD_VALUE; 2383 } 2384 2385 setOutputDevice(outputDesc->mIoHandle, 2386 getNewOutputDevice(outputDesc->mIoHandle, true /*fromCache*/), 2387 true, 2388 0, 2389 NULL); 2390 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 2391 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 2392 sp<AudioInputDescriptor> inputDesc = getInputFromId(patch->sinks[0].id); 2393 if (inputDesc == NULL) { 2394 ALOGV("releaseAudioPatch() input not found for id %d", patch->sinks[0].id); 2395 return BAD_VALUE; 2396 } 2397 setInputDevice(inputDesc->mIoHandle, 2398 getNewInputDevice(inputDesc->mIoHandle), 2399 true, 2400 NULL); 2401 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2402 audio_patch_handle_t afPatchHandle = patchDesc->mAfPatchHandle; 2403 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 2404 ALOGV("releaseAudioPatch() patch panel returned %d patchHandle %d", 2405 status, patchDesc->mAfPatchHandle); 2406 removeAudioPatch(patchDesc->mHandle); 2407 nextAudioPortGeneration(); 2408 mpClientInterface->onAudioPatchListUpdate(); 2409 } else { 2410 return BAD_VALUE; 2411 } 2412 } else { 2413 return BAD_VALUE; 2414 } 2415 return NO_ERROR; 2416} 2417 2418status_t AudioPolicyManager::listAudioPatches(unsigned int *num_patches, 2419 struct audio_patch *patches, 2420 unsigned int *generation) 2421{ 2422 if (num_patches == NULL || (*num_patches != 0 && patches == NULL) || 2423 generation == NULL) { 2424 return BAD_VALUE; 2425 } 2426 ALOGV("listAudioPatches() num_patches %d patches %p available patches %zu", 2427 *num_patches, patches, mAudioPatches.size()); 2428 if (patches == NULL) { 2429 *num_patches = 0; 2430 } 2431 2432 size_t patchesWritten = 0; 2433 size_t patchesMax = *num_patches; 2434 for (size_t i = 0; 2435 i < mAudioPatches.size() && patchesWritten < patchesMax; i++) { 2436 patches[patchesWritten] = mAudioPatches[i]->mPatch; 2437 patches[patchesWritten++].id = mAudioPatches[i]->mHandle; 2438 ALOGV("listAudioPatches() patch %zu num_sources %d num_sinks %d", 2439 i, mAudioPatches[i]->mPatch.num_sources, mAudioPatches[i]->mPatch.num_sinks); 2440 } 2441 *num_patches = mAudioPatches.size(); 2442 2443 *generation = curAudioPortGeneration(); 2444 ALOGV("listAudioPatches() got %zu patches needed %d", patchesWritten, *num_patches); 2445 return NO_ERROR; 2446} 2447 2448status_t AudioPolicyManager::setAudioPortConfig(const struct audio_port_config *config) 2449{ 2450 ALOGV("setAudioPortConfig()"); 2451 2452 if (config == NULL) { 2453 return BAD_VALUE; 2454 } 2455 ALOGV("setAudioPortConfig() on port handle %d", config->id); 2456 // Only support gain configuration for now 2457 if (config->config_mask != AUDIO_PORT_CONFIG_GAIN) { 2458 return INVALID_OPERATION; 2459 } 2460 2461 sp<AudioPortConfig> audioPortConfig; 2462 if (config->type == AUDIO_PORT_TYPE_MIX) { 2463 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2464 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(config->id); 2465 if (outputDesc == NULL) { 2466 return BAD_VALUE; 2467 } 2468 ALOG_ASSERT(!outputDesc->isDuplicated(), 2469 "setAudioPortConfig() called on duplicated output %d", 2470 outputDesc->mIoHandle); 2471 audioPortConfig = outputDesc; 2472 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2473 sp<AudioInputDescriptor> inputDesc = getInputFromId(config->id); 2474 if (inputDesc == NULL) { 2475 return BAD_VALUE; 2476 } 2477 audioPortConfig = inputDesc; 2478 } else { 2479 return BAD_VALUE; 2480 } 2481 } else if (config->type == AUDIO_PORT_TYPE_DEVICE) { 2482 sp<DeviceDescriptor> deviceDesc; 2483 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2484 deviceDesc = mAvailableInputDevices.getDeviceFromId(config->id); 2485 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2486 deviceDesc = mAvailableOutputDevices.getDeviceFromId(config->id); 2487 } else { 2488 return BAD_VALUE; 2489 } 2490 if (deviceDesc == NULL) { 2491 return BAD_VALUE; 2492 } 2493 audioPortConfig = deviceDesc; 2494 } else { 2495 return BAD_VALUE; 2496 } 2497 2498 struct audio_port_config backupConfig; 2499 status_t status = audioPortConfig->applyAudioPortConfig(config, &backupConfig); 2500 if (status == NO_ERROR) { 2501 struct audio_port_config newConfig; 2502 audioPortConfig->toAudioPortConfig(&newConfig, config); 2503 status = mpClientInterface->setAudioPortConfig(&newConfig, 0); 2504 } 2505 if (status != NO_ERROR) { 2506 audioPortConfig->applyAudioPortConfig(&backupConfig); 2507 } 2508 2509 return status; 2510} 2511 2512void AudioPolicyManager::clearAudioPatches(uid_t uid) 2513{ 2514 for (ssize_t i = 0; i < (ssize_t)mAudioPatches.size(); i++) { 2515 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(i); 2516 if (patchDesc->mUid == uid) { 2517 // releaseAudioPatch() removes the patch from mAudioPatches 2518 if (releaseAudioPatch(mAudioPatches.keyAt(i), uid) == NO_ERROR) { 2519 i--; 2520 } 2521 } 2522 } 2523} 2524 2525status_t AudioPolicyManager::acquireSoundTriggerSession(audio_session_t *session, 2526 audio_io_handle_t *ioHandle, 2527 audio_devices_t *device) 2528{ 2529 *session = (audio_session_t)mpClientInterface->newAudioUniqueId(); 2530 *ioHandle = (audio_io_handle_t)mpClientInterface->newAudioUniqueId(); 2531 *device = getDeviceForInputSource(AUDIO_SOURCE_HOTWORD); 2532 2533 mSoundTriggerSessions.add(*session, *ioHandle); 2534 2535 return NO_ERROR; 2536} 2537 2538status_t AudioPolicyManager::releaseSoundTriggerSession(audio_session_t session) 2539{ 2540 ssize_t index = mSoundTriggerSessions.indexOfKey(session); 2541 if (index < 0) { 2542 ALOGW("acquireSoundTriggerSession() session %d not registered", session); 2543 return BAD_VALUE; 2544 } 2545 2546 mSoundTriggerSessions.removeItem(session); 2547 return NO_ERROR; 2548} 2549 2550status_t AudioPolicyManager::addAudioPatch(audio_patch_handle_t handle, 2551 const sp<AudioPatch>& patch) 2552{ 2553 ssize_t index = mAudioPatches.indexOfKey(handle); 2554 2555 if (index >= 0) { 2556 ALOGW("addAudioPatch() patch %d already in", handle); 2557 return ALREADY_EXISTS; 2558 } 2559 mAudioPatches.add(handle, patch); 2560 ALOGV("addAudioPatch() handle %d af handle %d num_sources %d num_sinks %d source handle %d" 2561 "sink handle %d", 2562 handle, patch->mAfPatchHandle, patch->mPatch.num_sources, patch->mPatch.num_sinks, 2563 patch->mPatch.sources[0].id, patch->mPatch.sinks[0].id); 2564 return NO_ERROR; 2565} 2566 2567status_t AudioPolicyManager::removeAudioPatch(audio_patch_handle_t handle) 2568{ 2569 ssize_t index = mAudioPatches.indexOfKey(handle); 2570 2571 if (index < 0) { 2572 ALOGW("removeAudioPatch() patch %d not in", handle); 2573 return ALREADY_EXISTS; 2574 } 2575 ALOGV("removeAudioPatch() handle %d af handle %d", handle, 2576 mAudioPatches.valueAt(index)->mAfPatchHandle); 2577 mAudioPatches.removeItemsAt(index); 2578 return NO_ERROR; 2579} 2580 2581// ---------------------------------------------------------------------------- 2582// AudioPolicyManager 2583// ---------------------------------------------------------------------------- 2584 2585uint32_t AudioPolicyManager::nextUniqueId() 2586{ 2587 return android_atomic_inc(&mNextUniqueId); 2588} 2589 2590uint32_t AudioPolicyManager::nextAudioPortGeneration() 2591{ 2592 return android_atomic_inc(&mAudioPortGeneration); 2593} 2594 2595AudioPolicyManager::AudioPolicyManager(AudioPolicyClientInterface *clientInterface) 2596 : 2597#ifdef AUDIO_POLICY_TEST 2598 Thread(false), 2599#endif //AUDIO_POLICY_TEST 2600 mPrimaryOutput((audio_io_handle_t)0), 2601 mPhoneState(AUDIO_MODE_NORMAL), 2602 mLimitRingtoneVolume(false), mLastVoiceVolume(-1.0f), 2603 mTotalEffectsCpuLoad(0), mTotalEffectsMemory(0), 2604 mA2dpSuspended(false), 2605 mSpeakerDrcEnabled(false), mNextUniqueId(1), 2606 mAudioPortGeneration(1) 2607{ 2608 mUidCached = getuid(); 2609 mpClientInterface = clientInterface; 2610 2611 for (int i = 0; i < AUDIO_POLICY_FORCE_USE_CNT; i++) { 2612 mForceUse[i] = AUDIO_POLICY_FORCE_NONE; 2613 } 2614 2615 mDefaultOutputDevice = new DeviceDescriptor(String8(""), AUDIO_DEVICE_OUT_SPEAKER); 2616 if (loadAudioPolicyConfig(AUDIO_POLICY_VENDOR_CONFIG_FILE) != NO_ERROR) { 2617 if (loadAudioPolicyConfig(AUDIO_POLICY_CONFIG_FILE) != NO_ERROR) { 2618 ALOGE("could not load audio policy configuration file, setting defaults"); 2619 defaultAudioPolicyConfig(); 2620 } 2621 } 2622 // mAvailableOutputDevices and mAvailableInputDevices now contain all attached devices 2623 2624 // must be done after reading the policy 2625 initializeVolumeCurves(); 2626 2627 // open all output streams needed to access attached devices 2628 audio_devices_t outputDeviceTypes = mAvailableOutputDevices.types(); 2629 audio_devices_t inputDeviceTypes = mAvailableInputDevices.types() & ~AUDIO_DEVICE_BIT_IN; 2630 for (size_t i = 0; i < mHwModules.size(); i++) { 2631 mHwModules[i]->mHandle = mpClientInterface->loadHwModule(mHwModules[i]->mName); 2632 if (mHwModules[i]->mHandle == 0) { 2633 ALOGW("could not open HW module %s", mHwModules[i]->mName); 2634 continue; 2635 } 2636 // open all output streams needed to access attached devices 2637 // except for direct output streams that are only opened when they are actually 2638 // required by an app. 2639 // This also validates mAvailableOutputDevices list 2640 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 2641 { 2642 const sp<IOProfile> outProfile = mHwModules[i]->mOutputProfiles[j]; 2643 2644 if (outProfile->mSupportedDevices.isEmpty()) { 2645 ALOGW("Output profile contains no device on module %s", mHwModules[i]->mName); 2646 continue; 2647 } 2648 2649 audio_devices_t profileType = outProfile->mSupportedDevices.types(); 2650 if ((profileType & mDefaultOutputDevice->mDeviceType) != AUDIO_DEVICE_NONE) { 2651 profileType = mDefaultOutputDevice->mDeviceType; 2652 } else { 2653 profileType = outProfile->mSupportedDevices[0]->mDeviceType; 2654 } 2655 if ((profileType & outputDeviceTypes) && 2656 ((outProfile->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) == 0)) { 2657 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(outProfile); 2658 2659 outputDesc->mDevice = profileType; 2660 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 2661 config.sample_rate = outputDesc->mSamplingRate; 2662 config.channel_mask = outputDesc->mChannelMask; 2663 config.format = outputDesc->mFormat; 2664 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 2665 status_t status = mpClientInterface->openOutput(outProfile->mModule->mHandle, 2666 &output, 2667 &config, 2668 &outputDesc->mDevice, 2669 String8(""), 2670 &outputDesc->mLatency, 2671 outputDesc->mFlags); 2672 2673 if (status != NO_ERROR) { 2674 ALOGW("Cannot open output stream for device %08x on hw module %s", 2675 outputDesc->mDevice, 2676 mHwModules[i]->mName); 2677 } else { 2678 outputDesc->mSamplingRate = config.sample_rate; 2679 outputDesc->mChannelMask = config.channel_mask; 2680 outputDesc->mFormat = config.format; 2681 2682 for (size_t k = 0; k < outProfile->mSupportedDevices.size(); k++) { 2683 audio_devices_t type = outProfile->mSupportedDevices[k]->mDeviceType; 2684 ssize_t index = 2685 mAvailableOutputDevices.indexOf(outProfile->mSupportedDevices[k]); 2686 // give a valid ID to an attached device once confirmed it is reachable 2687 if ((index >= 0) && (mAvailableOutputDevices[index]->mId == 0)) { 2688 mAvailableOutputDevices[index]->mId = nextUniqueId(); 2689 mAvailableOutputDevices[index]->mModule = mHwModules[i]; 2690 } 2691 } 2692 if (mPrimaryOutput == 0 && 2693 outProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 2694 mPrimaryOutput = output; 2695 } 2696 addOutput(output, outputDesc); 2697 setOutputDevice(output, 2698 outputDesc->mDevice, 2699 true); 2700 } 2701 } 2702 } 2703 // open input streams needed to access attached devices to validate 2704 // mAvailableInputDevices list 2705 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 2706 { 2707 const sp<IOProfile> inProfile = mHwModules[i]->mInputProfiles[j]; 2708 2709 if (inProfile->mSupportedDevices.isEmpty()) { 2710 ALOGW("Input profile contains no device on module %s", mHwModules[i]->mName); 2711 continue; 2712 } 2713 2714 audio_devices_t profileType = inProfile->mSupportedDevices[0]->mDeviceType; 2715 if (profileType & inputDeviceTypes) { 2716 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(inProfile); 2717 2718 inputDesc->mInputSource = AUDIO_SOURCE_MIC; 2719 inputDesc->mDevice = profileType; 2720 2721 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 2722 config.sample_rate = inputDesc->mSamplingRate; 2723 config.channel_mask = inputDesc->mChannelMask; 2724 config.format = inputDesc->mFormat; 2725 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 2726 status_t status = mpClientInterface->openInput(inProfile->mModule->mHandle, 2727 &input, 2728 &config, 2729 &inputDesc->mDevice, 2730 String8(""), 2731 AUDIO_SOURCE_MIC, 2732 AUDIO_INPUT_FLAG_NONE); 2733 2734 if (status == NO_ERROR) { 2735 for (size_t k = 0; k < inProfile->mSupportedDevices.size(); k++) { 2736 audio_devices_t type = inProfile->mSupportedDevices[k]->mDeviceType; 2737 ssize_t index = 2738 mAvailableInputDevices.indexOf(inProfile->mSupportedDevices[k]); 2739 // give a valid ID to an attached device once confirmed it is reachable 2740 if ((index >= 0) && (mAvailableInputDevices[index]->mId == 0)) { 2741 mAvailableInputDevices[index]->mId = nextUniqueId(); 2742 mAvailableInputDevices[index]->mModule = mHwModules[i]; 2743 } 2744 } 2745 mpClientInterface->closeInput(input); 2746 } else { 2747 ALOGW("Cannot open input stream for device %08x on hw module %s", 2748 inputDesc->mDevice, 2749 mHwModules[i]->mName); 2750 } 2751 } 2752 } 2753 } 2754 // make sure all attached devices have been allocated a unique ID 2755 for (size_t i = 0; i < mAvailableOutputDevices.size();) { 2756 if (mAvailableOutputDevices[i]->mId == 0) { 2757 ALOGW("Input device %08x unreachable", mAvailableOutputDevices[i]->mDeviceType); 2758 mAvailableOutputDevices.remove(mAvailableOutputDevices[i]); 2759 continue; 2760 } 2761 i++; 2762 } 2763 for (size_t i = 0; i < mAvailableInputDevices.size();) { 2764 if (mAvailableInputDevices[i]->mId == 0) { 2765 ALOGW("Input device %08x unreachable", mAvailableInputDevices[i]->mDeviceType); 2766 mAvailableInputDevices.remove(mAvailableInputDevices[i]); 2767 continue; 2768 } 2769 i++; 2770 } 2771 // make sure default device is reachable 2772 if (mAvailableOutputDevices.indexOf(mDefaultOutputDevice) < 0) { 2773 ALOGE("Default device %08x is unreachable", mDefaultOutputDevice->mDeviceType); 2774 } 2775 2776 ALOGE_IF((mPrimaryOutput == 0), "Failed to open primary output"); 2777 2778 updateDevicesAndOutputs(); 2779 2780#ifdef AUDIO_POLICY_TEST 2781 if (mPrimaryOutput != 0) { 2782 AudioParameter outputCmd = AudioParameter(); 2783 outputCmd.addInt(String8("set_id"), 0); 2784 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 2785 2786 mTestDevice = AUDIO_DEVICE_OUT_SPEAKER; 2787 mTestSamplingRate = 44100; 2788 mTestFormat = AUDIO_FORMAT_PCM_16_BIT; 2789 mTestChannels = AUDIO_CHANNEL_OUT_STEREO; 2790 mTestLatencyMs = 0; 2791 mCurOutput = 0; 2792 mDirectOutput = false; 2793 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 2794 mTestOutputs[i] = 0; 2795 } 2796 2797 const size_t SIZE = 256; 2798 char buffer[SIZE]; 2799 snprintf(buffer, SIZE, "AudioPolicyManagerTest"); 2800 run(buffer, ANDROID_PRIORITY_AUDIO); 2801 } 2802#endif //AUDIO_POLICY_TEST 2803} 2804 2805AudioPolicyManager::~AudioPolicyManager() 2806{ 2807#ifdef AUDIO_POLICY_TEST 2808 exit(); 2809#endif //AUDIO_POLICY_TEST 2810 for (size_t i = 0; i < mOutputs.size(); i++) { 2811 mpClientInterface->closeOutput(mOutputs.keyAt(i)); 2812 } 2813 for (size_t i = 0; i < mInputs.size(); i++) { 2814 mpClientInterface->closeInput(mInputs.keyAt(i)); 2815 } 2816 mAvailableOutputDevices.clear(); 2817 mAvailableInputDevices.clear(); 2818 mOutputs.clear(); 2819 mInputs.clear(); 2820 mHwModules.clear(); 2821} 2822 2823status_t AudioPolicyManager::initCheck() 2824{ 2825 return (mPrimaryOutput == 0) ? NO_INIT : NO_ERROR; 2826} 2827 2828#ifdef AUDIO_POLICY_TEST 2829bool AudioPolicyManager::threadLoop() 2830{ 2831 ALOGV("entering threadLoop()"); 2832 while (!exitPending()) 2833 { 2834 String8 command; 2835 int valueInt; 2836 String8 value; 2837 2838 Mutex::Autolock _l(mLock); 2839 mWaitWorkCV.waitRelative(mLock, milliseconds(50)); 2840 2841 command = mpClientInterface->getParameters(0, String8("test_cmd_policy")); 2842 AudioParameter param = AudioParameter(command); 2843 2844 if (param.getInt(String8("test_cmd_policy"), valueInt) == NO_ERROR && 2845 valueInt != 0) { 2846 ALOGV("Test command %s received", command.string()); 2847 String8 target; 2848 if (param.get(String8("target"), target) != NO_ERROR) { 2849 target = "Manager"; 2850 } 2851 if (param.getInt(String8("test_cmd_policy_output"), valueInt) == NO_ERROR) { 2852 param.remove(String8("test_cmd_policy_output")); 2853 mCurOutput = valueInt; 2854 } 2855 if (param.get(String8("test_cmd_policy_direct"), value) == NO_ERROR) { 2856 param.remove(String8("test_cmd_policy_direct")); 2857 if (value == "false") { 2858 mDirectOutput = false; 2859 } else if (value == "true") { 2860 mDirectOutput = true; 2861 } 2862 } 2863 if (param.getInt(String8("test_cmd_policy_input"), valueInt) == NO_ERROR) { 2864 param.remove(String8("test_cmd_policy_input")); 2865 mTestInput = valueInt; 2866 } 2867 2868 if (param.get(String8("test_cmd_policy_format"), value) == NO_ERROR) { 2869 param.remove(String8("test_cmd_policy_format")); 2870 int format = AUDIO_FORMAT_INVALID; 2871 if (value == "PCM 16 bits") { 2872 format = AUDIO_FORMAT_PCM_16_BIT; 2873 } else if (value == "PCM 8 bits") { 2874 format = AUDIO_FORMAT_PCM_8_BIT; 2875 } else if (value == "Compressed MP3") { 2876 format = AUDIO_FORMAT_MP3; 2877 } 2878 if (format != AUDIO_FORMAT_INVALID) { 2879 if (target == "Manager") { 2880 mTestFormat = format; 2881 } else if (mTestOutputs[mCurOutput] != 0) { 2882 AudioParameter outputParam = AudioParameter(); 2883 outputParam.addInt(String8("format"), format); 2884 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 2885 } 2886 } 2887 } 2888 if (param.get(String8("test_cmd_policy_channels"), value) == NO_ERROR) { 2889 param.remove(String8("test_cmd_policy_channels")); 2890 int channels = 0; 2891 2892 if (value == "Channels Stereo") { 2893 channels = AUDIO_CHANNEL_OUT_STEREO; 2894 } else if (value == "Channels Mono") { 2895 channels = AUDIO_CHANNEL_OUT_MONO; 2896 } 2897 if (channels != 0) { 2898 if (target == "Manager") { 2899 mTestChannels = channels; 2900 } else if (mTestOutputs[mCurOutput] != 0) { 2901 AudioParameter outputParam = AudioParameter(); 2902 outputParam.addInt(String8("channels"), channels); 2903 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 2904 } 2905 } 2906 } 2907 if (param.getInt(String8("test_cmd_policy_sampleRate"), valueInt) == NO_ERROR) { 2908 param.remove(String8("test_cmd_policy_sampleRate")); 2909 if (valueInt >= 0 && valueInt <= 96000) { 2910 int samplingRate = valueInt; 2911 if (target == "Manager") { 2912 mTestSamplingRate = samplingRate; 2913 } else if (mTestOutputs[mCurOutput] != 0) { 2914 AudioParameter outputParam = AudioParameter(); 2915 outputParam.addInt(String8("sampling_rate"), samplingRate); 2916 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 2917 } 2918 } 2919 } 2920 2921 if (param.get(String8("test_cmd_policy_reopen"), value) == NO_ERROR) { 2922 param.remove(String8("test_cmd_policy_reopen")); 2923 2924 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 2925 mpClientInterface->closeOutput(mPrimaryOutput); 2926 2927 audio_module_handle_t moduleHandle = outputDesc->mModule->mHandle; 2928 2929 mOutputs.removeItem(mPrimaryOutput); 2930 2931 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(NULL); 2932 outputDesc->mDevice = AUDIO_DEVICE_OUT_SPEAKER; 2933 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 2934 config.sample_rate = outputDesc->mSamplingRate; 2935 config.channel_mask = outputDesc->mChannelMask; 2936 config.format = outputDesc->mFormat; 2937 status_t status = mpClientInterface->openOutput(moduleHandle, 2938 &mPrimaryOutput, 2939 &config, 2940 &outputDesc->mDevice, 2941 String8(""), 2942 &outputDesc->mLatency, 2943 outputDesc->mFlags); 2944 if (status != NO_ERROR) { 2945 ALOGE("Failed to reopen hardware output stream, " 2946 "samplingRate: %d, format %d, channels %d", 2947 outputDesc->mSamplingRate, outputDesc->mFormat, outputDesc->mChannelMask); 2948 } else { 2949 outputDesc->mSamplingRate = config.sample_rate; 2950 outputDesc->mChannelMask = config.channel_mask; 2951 outputDesc->mFormat = config.format; 2952 AudioParameter outputCmd = AudioParameter(); 2953 outputCmd.addInt(String8("set_id"), 0); 2954 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 2955 addOutput(mPrimaryOutput, outputDesc); 2956 } 2957 } 2958 2959 2960 mpClientInterface->setParameters(0, String8("test_cmd_policy=")); 2961 } 2962 } 2963 return false; 2964} 2965 2966void AudioPolicyManager::exit() 2967{ 2968 { 2969 AutoMutex _l(mLock); 2970 requestExit(); 2971 mWaitWorkCV.signal(); 2972 } 2973 requestExitAndWait(); 2974} 2975 2976int AudioPolicyManager::testOutputIndex(audio_io_handle_t output) 2977{ 2978 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 2979 if (output == mTestOutputs[i]) return i; 2980 } 2981 return 0; 2982} 2983#endif //AUDIO_POLICY_TEST 2984 2985// --- 2986 2987void AudioPolicyManager::addOutput(audio_io_handle_t output, sp<AudioOutputDescriptor> outputDesc) 2988{ 2989 outputDesc->mIoHandle = output; 2990 outputDesc->mId = nextUniqueId(); 2991 mOutputs.add(output, outputDesc); 2992 nextAudioPortGeneration(); 2993} 2994 2995void AudioPolicyManager::addInput(audio_io_handle_t input, sp<AudioInputDescriptor> inputDesc) 2996{ 2997 inputDesc->mIoHandle = input; 2998 inputDesc->mId = nextUniqueId(); 2999 mInputs.add(input, inputDesc); 3000 nextAudioPortGeneration(); 3001} 3002 3003void AudioPolicyManager::findIoHandlesByAddress(sp<AudioOutputDescriptor> desc /*in*/, 3004 const String8 address /*in*/, 3005 SortedVector<audio_io_handle_t>& outputs /*out*/) { 3006 // look for a match on the given address on the addresses of the outputs: 3007 // find the address by finding the patch that maps to this output 3008 ssize_t patchIdx = mAudioPatches.indexOfKey(desc->mPatchHandle); 3009 //ALOGV(" inspecting output %d (patch %d) for supported device=0x%x", 3010 // outputIdx, patchIdx, desc->mProfile->mSupportedDevices.types()); 3011 if (patchIdx >= 0) { 3012 const sp<AudioPatch> patchDesc = mAudioPatches.valueAt(patchIdx); 3013 const int numSinks = patchDesc->mPatch.num_sinks; 3014 for (ssize_t j=0; j < numSinks; j++) { 3015 if (patchDesc->mPatch.sinks[j].type == AUDIO_PORT_TYPE_DEVICE) { 3016 const char* patchAddr = 3017 patchDesc->mPatch.sinks[j].ext.device.address; 3018 if (strncmp(patchAddr, 3019 address.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN) == 0) { 3020 ALOGV("findIoHandlesByAddress(): adding opened output %d on same address %s", 3021 desc->mIoHandle, patchDesc->mPatch.sinks[j].ext.device.address); 3022 outputs.add(desc->mIoHandle); 3023 break; 3024 } 3025 } 3026 } 3027 } 3028} 3029 3030status_t AudioPolicyManager::checkOutputsForDevice(const sp<DeviceDescriptor> devDesc, 3031 audio_policy_dev_state_t state, 3032 SortedVector<audio_io_handle_t>& outputs, 3033 const String8 address) 3034{ 3035 audio_devices_t device = devDesc->mDeviceType; 3036 sp<AudioOutputDescriptor> desc; 3037 // erase all current sample rates, formats and channel masks 3038 devDesc->clearCapabilities(); 3039 3040 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 3041 // first list already open outputs that can be routed to this device 3042 for (size_t i = 0; i < mOutputs.size(); i++) { 3043 desc = mOutputs.valueAt(i); 3044 if (!desc->isDuplicated() && (desc->mProfile->mSupportedDevices.types() & device)) { 3045 if (!deviceDistinguishesOnAddress(device)) { 3046 ALOGV("checkOutputsForDevice(): adding opened output %d", mOutputs.keyAt(i)); 3047 outputs.add(mOutputs.keyAt(i)); 3048 } else { 3049 ALOGV(" checking address match due to device 0x%x", device); 3050 findIoHandlesByAddress(desc, address, outputs); 3051 } 3052 } 3053 } 3054 // then look for output profiles that can be routed to this device 3055 SortedVector< sp<IOProfile> > profiles; 3056 for (size_t i = 0; i < mHwModules.size(); i++) 3057 { 3058 if (mHwModules[i]->mHandle == 0) { 3059 continue; 3060 } 3061 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3062 { 3063 if (mHwModules[i]->mOutputProfiles[j]->mSupportedDevices.types() & device) { 3064 ALOGV("checkOutputsForDevice(): adding profile %zu from module %zu", j, i); 3065 profiles.add(mHwModules[i]->mOutputProfiles[j]); 3066 } 3067 } 3068 } 3069 3070 ALOGV(" found %d profiles, %d outputs", profiles.size(), outputs.size()); 3071 3072 if (profiles.isEmpty() && outputs.isEmpty()) { 3073 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 3074 return BAD_VALUE; 3075 } 3076 3077 // open outputs for matching profiles if needed. Direct outputs are also opened to 3078 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 3079 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 3080 sp<IOProfile> profile = profiles[profile_index]; 3081 3082 // nothing to do if one output is already opened for this profile 3083 size_t j; 3084 for (j = 0; j < outputs.size(); j++) { 3085 desc = mOutputs.valueFor(outputs.itemAt(j)); 3086 if (!desc->isDuplicated() && desc->mProfile == profile) { 3087 // matching profile: save the sample rates, format and channel masks supported 3088 // by the profile in our device descriptor 3089 devDesc->importAudioPort(profile); 3090 break; 3091 } 3092 } 3093 if (j != outputs.size()) { 3094 continue; 3095 } 3096 3097 ALOGV("opening output for device %08x with params %s profile %p", 3098 device, address.string(), profile.get()); 3099 desc = new AudioOutputDescriptor(profile); 3100 desc->mDevice = device; 3101 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3102 config.sample_rate = desc->mSamplingRate; 3103 config.channel_mask = desc->mChannelMask; 3104 config.format = desc->mFormat; 3105 config.offload_info.sample_rate = desc->mSamplingRate; 3106 config.offload_info.channel_mask = desc->mChannelMask; 3107 config.offload_info.format = desc->mFormat; 3108 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 3109 status_t status = mpClientInterface->openOutput(profile->mModule->mHandle, 3110 &output, 3111 &config, 3112 &desc->mDevice, 3113 address, 3114 &desc->mLatency, 3115 desc->mFlags); 3116 if (status == NO_ERROR) { 3117 desc->mSamplingRate = config.sample_rate; 3118 desc->mChannelMask = config.channel_mask; 3119 desc->mFormat = config.format; 3120 3121 // Here is where the out_set_parameters() for card & device gets called 3122 if (!address.isEmpty()) { 3123 char *param = audio_device_address_to_parameter(device, address); 3124 mpClientInterface->setParameters(output, String8(param)); 3125 free(param); 3126 } 3127 3128 // Here is where we step through and resolve any "dynamic" fields 3129 String8 reply; 3130 char *value; 3131 if (profile->mSamplingRates[0] == 0) { 3132 reply = mpClientInterface->getParameters(output, 3133 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 3134 ALOGV("checkOutputsForDevice() supported sampling rates %s", 3135 reply.string()); 3136 value = strpbrk((char *)reply.string(), "="); 3137 if (value != NULL) { 3138 profile->loadSamplingRates(value + 1); 3139 } 3140 } 3141 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3142 reply = mpClientInterface->getParameters(output, 3143 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 3144 ALOGV("checkOutputsForDevice() supported formats %s", 3145 reply.string()); 3146 value = strpbrk((char *)reply.string(), "="); 3147 if (value != NULL) { 3148 profile->loadFormats(value + 1); 3149 } 3150 } 3151 if (profile->mChannelMasks[0] == 0) { 3152 reply = mpClientInterface->getParameters(output, 3153 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 3154 ALOGV("checkOutputsForDevice() supported channel masks %s", 3155 reply.string()); 3156 value = strpbrk((char *)reply.string(), "="); 3157 if (value != NULL) { 3158 profile->loadOutChannels(value + 1); 3159 } 3160 } 3161 if (((profile->mSamplingRates[0] == 0) && 3162 (profile->mSamplingRates.size() < 2)) || 3163 ((profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) && 3164 (profile->mFormats.size() < 2)) || 3165 ((profile->mChannelMasks[0] == 0) && 3166 (profile->mChannelMasks.size() < 2))) { 3167 ALOGW("checkOutputsForDevice() missing param"); 3168 mpClientInterface->closeOutput(output); 3169 output = AUDIO_IO_HANDLE_NONE; 3170 } else if (profile->mSamplingRates[0] == 0 || profile->mFormats[0] == 0 || 3171 profile->mChannelMasks[0] == 0) { 3172 mpClientInterface->closeOutput(output); 3173 config.sample_rate = profile->pickSamplingRate(); 3174 config.channel_mask = profile->pickChannelMask(); 3175 config.format = profile->pickFormat(); 3176 config.offload_info.sample_rate = config.sample_rate; 3177 config.offload_info.channel_mask = config.channel_mask; 3178 config.offload_info.format = config.format; 3179 status = mpClientInterface->openOutput(profile->mModule->mHandle, 3180 &output, 3181 &config, 3182 &desc->mDevice, 3183 address, 3184 &desc->mLatency, 3185 desc->mFlags); 3186 if (status == NO_ERROR) { 3187 desc->mSamplingRate = config.sample_rate; 3188 desc->mChannelMask = config.channel_mask; 3189 desc->mFormat = config.format; 3190 } else { 3191 output = AUDIO_IO_HANDLE_NONE; 3192 } 3193 } 3194 3195 if (output != AUDIO_IO_HANDLE_NONE) { 3196 addOutput(output, desc); 3197 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) { 3198 audio_io_handle_t duplicatedOutput = AUDIO_IO_HANDLE_NONE; 3199 3200 // set initial stream volume for device 3201 applyStreamVolumes(output, device, 0, true); 3202 3203 //TODO: configure audio effect output stage here 3204 3205 // open a duplicating output thread for the new output and the primary output 3206 duplicatedOutput = mpClientInterface->openDuplicateOutput(output, 3207 mPrimaryOutput); 3208 if (duplicatedOutput != AUDIO_IO_HANDLE_NONE) { 3209 // add duplicated output descriptor 3210 sp<AudioOutputDescriptor> dupOutputDesc = 3211 new AudioOutputDescriptor(NULL); 3212 dupOutputDesc->mOutput1 = mOutputs.valueFor(mPrimaryOutput); 3213 dupOutputDesc->mOutput2 = mOutputs.valueFor(output); 3214 dupOutputDesc->mSamplingRate = desc->mSamplingRate; 3215 dupOutputDesc->mFormat = desc->mFormat; 3216 dupOutputDesc->mChannelMask = desc->mChannelMask; 3217 dupOutputDesc->mLatency = desc->mLatency; 3218 addOutput(duplicatedOutput, dupOutputDesc); 3219 applyStreamVolumes(duplicatedOutput, device, 0, true); 3220 } else { 3221 ALOGW("checkOutputsForDevice() could not open dup output for %d and %d", 3222 mPrimaryOutput, output); 3223 mpClientInterface->closeOutput(output); 3224 mOutputs.removeItem(output); 3225 nextAudioPortGeneration(); 3226 output = AUDIO_IO_HANDLE_NONE; 3227 } 3228 } 3229 } 3230 } else { 3231 output = AUDIO_IO_HANDLE_NONE; 3232 } 3233 if (output == AUDIO_IO_HANDLE_NONE) { 3234 ALOGW("checkOutputsForDevice() could not open output for device %x", device); 3235 profiles.removeAt(profile_index); 3236 profile_index--; 3237 } else { 3238 outputs.add(output); 3239 devDesc->importAudioPort(profile); 3240 3241 if (deviceDistinguishesOnAddress(device)) { 3242 ALOGV("checkOutputsForDevice(): setOutputDevice(dev=0x%x, addr=%s)", 3243 device, address.string()); 3244 setOutputDevice(output, device, true/*force*/, 0/*delay*/, 3245 NULL/*patch handle*/, address.string()); 3246 } 3247 ALOGV("checkOutputsForDevice(): adding output %d", output); 3248 } 3249 } 3250 3251 if (profiles.isEmpty()) { 3252 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 3253 return BAD_VALUE; 3254 } 3255 } else { // Disconnect 3256 // check if one opened output is not needed any more after disconnecting one device 3257 for (size_t i = 0; i < mOutputs.size(); i++) { 3258 desc = mOutputs.valueAt(i); 3259 if (!desc->isDuplicated()) { 3260 if (!(desc->mProfile->mSupportedDevices.types() 3261 & mAvailableOutputDevices.types())) { 3262 ALOGV("checkOutputsForDevice(): disconnecting adding output %d", 3263 mOutputs.keyAt(i)); 3264 outputs.add(mOutputs.keyAt(i)); 3265 } else if (deviceDistinguishesOnAddress(device) && 3266 // exact match on device 3267 (desc->mProfile->mSupportedDevices.types() == device)) { 3268 findIoHandlesByAddress(desc, address, outputs); 3269 } 3270 } 3271 } 3272 // Clear any profiles associated with the disconnected device. 3273 for (size_t i = 0; i < mHwModules.size(); i++) 3274 { 3275 if (mHwModules[i]->mHandle == 0) { 3276 continue; 3277 } 3278 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3279 { 3280 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 3281 if (profile->mSupportedDevices.types() & device) { 3282 ALOGV("checkOutputsForDevice(): " 3283 "clearing direct output profile %zu on module %zu", j, i); 3284 if (profile->mSamplingRates[0] == 0) { 3285 profile->mSamplingRates.clear(); 3286 profile->mSamplingRates.add(0); 3287 } 3288 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3289 profile->mFormats.clear(); 3290 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 3291 } 3292 if (profile->mChannelMasks[0] == 0) { 3293 profile->mChannelMasks.clear(); 3294 profile->mChannelMasks.add(0); 3295 } 3296 } 3297 } 3298 } 3299 } 3300 return NO_ERROR; 3301} 3302 3303status_t AudioPolicyManager::checkInputsForDevice(audio_devices_t device, 3304 audio_policy_dev_state_t state, 3305 SortedVector<audio_io_handle_t>& inputs, 3306 const String8 address) 3307{ 3308 sp<AudioInputDescriptor> desc; 3309 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 3310 // first list already open inputs that can be routed to this device 3311 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 3312 desc = mInputs.valueAt(input_index); 3313 if (desc->mProfile->mSupportedDevices.types() & (device & ~AUDIO_DEVICE_BIT_IN)) { 3314 ALOGV("checkInputsForDevice(): adding opened input %d", mInputs.keyAt(input_index)); 3315 inputs.add(mInputs.keyAt(input_index)); 3316 } 3317 } 3318 3319 // then look for input profiles that can be routed to this device 3320 SortedVector< sp<IOProfile> > profiles; 3321 for (size_t module_idx = 0; module_idx < mHwModules.size(); module_idx++) 3322 { 3323 if (mHwModules[module_idx]->mHandle == 0) { 3324 continue; 3325 } 3326 for (size_t profile_index = 0; 3327 profile_index < mHwModules[module_idx]->mInputProfiles.size(); 3328 profile_index++) 3329 { 3330 if (mHwModules[module_idx]->mInputProfiles[profile_index]->mSupportedDevices.types() 3331 & (device & ~AUDIO_DEVICE_BIT_IN)) { 3332 ALOGV("checkInputsForDevice(): adding profile %zu from module %zu", 3333 profile_index, module_idx); 3334 profiles.add(mHwModules[module_idx]->mInputProfiles[profile_index]); 3335 } 3336 } 3337 } 3338 3339 if (profiles.isEmpty() && inputs.isEmpty()) { 3340 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 3341 return BAD_VALUE; 3342 } 3343 3344 // open inputs for matching profiles if needed. Direct inputs are also opened to 3345 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 3346 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 3347 3348 sp<IOProfile> profile = profiles[profile_index]; 3349 // nothing to do if one input is already opened for this profile 3350 size_t input_index; 3351 for (input_index = 0; input_index < mInputs.size(); input_index++) { 3352 desc = mInputs.valueAt(input_index); 3353 if (desc->mProfile == profile) { 3354 break; 3355 } 3356 } 3357 if (input_index != mInputs.size()) { 3358 continue; 3359 } 3360 3361 ALOGV("opening input for device 0x%X with params %s", device, address.string()); 3362 desc = new AudioInputDescriptor(profile); 3363 desc->mDevice = device; 3364 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3365 config.sample_rate = desc->mSamplingRate; 3366 config.channel_mask = desc->mChannelMask; 3367 config.format = desc->mFormat; 3368 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 3369 status_t status = mpClientInterface->openInput(profile->mModule->mHandle, 3370 &input, 3371 &config, 3372 &desc->mDevice, 3373 address, 3374 AUDIO_SOURCE_MIC, 3375 AUDIO_INPUT_FLAG_NONE /*FIXME*/); 3376 3377 if (status == NO_ERROR) { 3378 desc->mSamplingRate = config.sample_rate; 3379 desc->mChannelMask = config.channel_mask; 3380 desc->mFormat = config.format; 3381 3382 if (!address.isEmpty()) { 3383 char *param = audio_device_address_to_parameter(device, address); 3384 mpClientInterface->setParameters(input, String8(param)); 3385 free(param); 3386 } 3387 3388 // Here is where we step through and resolve any "dynamic" fields 3389 String8 reply; 3390 char *value; 3391 if (profile->mSamplingRates[0] == 0) { 3392 reply = mpClientInterface->getParameters(input, 3393 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 3394 ALOGV("checkInputsForDevice() direct input sup sampling rates %s", 3395 reply.string()); 3396 value = strpbrk((char *)reply.string(), "="); 3397 if (value != NULL) { 3398 profile->loadSamplingRates(value + 1); 3399 } 3400 } 3401 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3402 reply = mpClientInterface->getParameters(input, 3403 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 3404 ALOGV("checkInputsForDevice() direct input sup formats %s", reply.string()); 3405 value = strpbrk((char *)reply.string(), "="); 3406 if (value != NULL) { 3407 profile->loadFormats(value + 1); 3408 } 3409 } 3410 if (profile->mChannelMasks[0] == 0) { 3411 reply = mpClientInterface->getParameters(input, 3412 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 3413 ALOGV("checkInputsForDevice() direct input sup channel masks %s", 3414 reply.string()); 3415 value = strpbrk((char *)reply.string(), "="); 3416 if (value != NULL) { 3417 profile->loadInChannels(value + 1); 3418 } 3419 } 3420 if (((profile->mSamplingRates[0] == 0) && (profile->mSamplingRates.size() < 2)) || 3421 ((profile->mFormats[0] == 0) && (profile->mFormats.size() < 2)) || 3422 ((profile->mChannelMasks[0] == 0) && (profile->mChannelMasks.size() < 2))) { 3423 ALOGW("checkInputsForDevice() direct input missing param"); 3424 mpClientInterface->closeInput(input); 3425 input = AUDIO_IO_HANDLE_NONE; 3426 } 3427 3428 if (input != 0) { 3429 addInput(input, desc); 3430 } 3431 } // endif input != 0 3432 3433 if (input == AUDIO_IO_HANDLE_NONE) { 3434 ALOGW("checkInputsForDevice() could not open input for device 0x%X", device); 3435 profiles.removeAt(profile_index); 3436 profile_index--; 3437 } else { 3438 inputs.add(input); 3439 ALOGV("checkInputsForDevice(): adding input %d", input); 3440 } 3441 } // end scan profiles 3442 3443 if (profiles.isEmpty()) { 3444 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 3445 return BAD_VALUE; 3446 } 3447 } else { 3448 // Disconnect 3449 // check if one opened input is not needed any more after disconnecting one device 3450 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 3451 desc = mInputs.valueAt(input_index); 3452 if (!(desc->mProfile->mSupportedDevices.types() & mAvailableInputDevices.types())) { 3453 ALOGV("checkInputsForDevice(): disconnecting adding input %d", 3454 mInputs.keyAt(input_index)); 3455 inputs.add(mInputs.keyAt(input_index)); 3456 } 3457 } 3458 // Clear any profiles associated with the disconnected device. 3459 for (size_t module_index = 0; module_index < mHwModules.size(); module_index++) { 3460 if (mHwModules[module_index]->mHandle == 0) { 3461 continue; 3462 } 3463 for (size_t profile_index = 0; 3464 profile_index < mHwModules[module_index]->mInputProfiles.size(); 3465 profile_index++) { 3466 sp<IOProfile> profile = mHwModules[module_index]->mInputProfiles[profile_index]; 3467 if (profile->mSupportedDevices.types() & device) { 3468 ALOGV("checkInputsForDevice(): clearing direct input profile %zu on module %zu", 3469 profile_index, module_index); 3470 if (profile->mSamplingRates[0] == 0) { 3471 profile->mSamplingRates.clear(); 3472 profile->mSamplingRates.add(0); 3473 } 3474 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3475 profile->mFormats.clear(); 3476 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 3477 } 3478 if (profile->mChannelMasks[0] == 0) { 3479 profile->mChannelMasks.clear(); 3480 profile->mChannelMasks.add(0); 3481 } 3482 } 3483 } 3484 } 3485 } // end disconnect 3486 3487 return NO_ERROR; 3488} 3489 3490 3491void AudioPolicyManager::closeOutput(audio_io_handle_t output) 3492{ 3493 ALOGV("closeOutput(%d)", output); 3494 3495 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 3496 if (outputDesc == NULL) { 3497 ALOGW("closeOutput() unknown output %d", output); 3498 return; 3499 } 3500 3501 // look for duplicated outputs connected to the output being removed. 3502 for (size_t i = 0; i < mOutputs.size(); i++) { 3503 sp<AudioOutputDescriptor> dupOutputDesc = mOutputs.valueAt(i); 3504 if (dupOutputDesc->isDuplicated() && 3505 (dupOutputDesc->mOutput1 == outputDesc || 3506 dupOutputDesc->mOutput2 == outputDesc)) { 3507 sp<AudioOutputDescriptor> outputDesc2; 3508 if (dupOutputDesc->mOutput1 == outputDesc) { 3509 outputDesc2 = dupOutputDesc->mOutput2; 3510 } else { 3511 outputDesc2 = dupOutputDesc->mOutput1; 3512 } 3513 // As all active tracks on duplicated output will be deleted, 3514 // and as they were also referenced on the other output, the reference 3515 // count for their stream type must be adjusted accordingly on 3516 // the other output. 3517 for (int j = 0; j < AUDIO_STREAM_CNT; j++) { 3518 int refCount = dupOutputDesc->mRefCount[j]; 3519 outputDesc2->changeRefCount((audio_stream_type_t)j,-refCount); 3520 } 3521 audio_io_handle_t duplicatedOutput = mOutputs.keyAt(i); 3522 ALOGV("closeOutput() closing also duplicated output %d", duplicatedOutput); 3523 3524 mpClientInterface->closeOutput(duplicatedOutput); 3525 mOutputs.removeItem(duplicatedOutput); 3526 } 3527 } 3528 3529 nextAudioPortGeneration(); 3530 3531 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3532 if (index >= 0) { 3533 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3534 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 3535 mAudioPatches.removeItemsAt(index); 3536 mpClientInterface->onAudioPatchListUpdate(); 3537 } 3538 3539 AudioParameter param; 3540 param.add(String8("closing"), String8("true")); 3541 mpClientInterface->setParameters(output, param.toString()); 3542 3543 mpClientInterface->closeOutput(output); 3544 mOutputs.removeItem(output); 3545 mPreviousOutputs = mOutputs; 3546} 3547 3548void AudioPolicyManager::closeInput(audio_io_handle_t input) 3549{ 3550 ALOGV("closeInput(%d)", input); 3551 3552 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 3553 if (inputDesc == NULL) { 3554 ALOGW("closeInput() unknown input %d", input); 3555 return; 3556 } 3557 3558 nextAudioPortGeneration(); 3559 3560 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 3561 if (index >= 0) { 3562 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3563 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 3564 mAudioPatches.removeItemsAt(index); 3565 mpClientInterface->onAudioPatchListUpdate(); 3566 } 3567 3568 mpClientInterface->closeInput(input); 3569 mInputs.removeItem(input); 3570} 3571 3572SortedVector<audio_io_handle_t> AudioPolicyManager::getOutputsForDevice(audio_devices_t device, 3573 DefaultKeyedVector<audio_io_handle_t, sp<AudioOutputDescriptor> > openOutputs) 3574{ 3575 SortedVector<audio_io_handle_t> outputs; 3576 3577 ALOGVV("getOutputsForDevice() device %04x", device); 3578 for (size_t i = 0; i < openOutputs.size(); i++) { 3579 ALOGVV("output %d isDuplicated=%d device=%04x", 3580 i, openOutputs.valueAt(i)->isDuplicated(), openOutputs.valueAt(i)->supportedDevices()); 3581 if ((device & openOutputs.valueAt(i)->supportedDevices()) == device) { 3582 ALOGVV("getOutputsForDevice() found output %d", openOutputs.keyAt(i)); 3583 outputs.add(openOutputs.keyAt(i)); 3584 } 3585 } 3586 return outputs; 3587} 3588 3589bool AudioPolicyManager::vectorsEqual(SortedVector<audio_io_handle_t>& outputs1, 3590 SortedVector<audio_io_handle_t>& outputs2) 3591{ 3592 if (outputs1.size() != outputs2.size()) { 3593 return false; 3594 } 3595 for (size_t i = 0; i < outputs1.size(); i++) { 3596 if (outputs1[i] != outputs2[i]) { 3597 return false; 3598 } 3599 } 3600 return true; 3601} 3602 3603void AudioPolicyManager::checkOutputForStrategy(routing_strategy strategy) 3604{ 3605 audio_devices_t oldDevice = getDeviceForStrategy(strategy, true /*fromCache*/); 3606 audio_devices_t newDevice = getDeviceForStrategy(strategy, false /*fromCache*/); 3607 SortedVector<audio_io_handle_t> srcOutputs = getOutputsForDevice(oldDevice, mPreviousOutputs); 3608 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(newDevice, mOutputs); 3609 3610 if (!vectorsEqual(srcOutputs,dstOutputs)) { 3611 ALOGV("checkOutputForStrategy() strategy %d, moving from output %d to output %d", 3612 strategy, srcOutputs[0], dstOutputs[0]); 3613 // mute strategy while moving tracks from one output to another 3614 for (size_t i = 0; i < srcOutputs.size(); i++) { 3615 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(srcOutputs[i]); 3616 if (desc->isStrategyActive(strategy)) { 3617 setStrategyMute(strategy, true, srcOutputs[i]); 3618 setStrategyMute(strategy, false, srcOutputs[i], MUTE_TIME_MS, newDevice); 3619 } 3620 } 3621 3622 // Move effects associated to this strategy from previous output to new output 3623 if (strategy == STRATEGY_MEDIA) { 3624 audio_io_handle_t fxOutput = selectOutputForEffects(dstOutputs); 3625 SortedVector<audio_io_handle_t> moved; 3626 for (size_t i = 0; i < mEffects.size(); i++) { 3627 sp<EffectDescriptor> effectDesc = mEffects.valueAt(i); 3628 if (effectDesc->mSession == AUDIO_SESSION_OUTPUT_MIX && 3629 effectDesc->mIo != fxOutput) { 3630 if (moved.indexOf(effectDesc->mIo) < 0) { 3631 ALOGV("checkOutputForStrategy() moving effect %d to output %d", 3632 mEffects.keyAt(i), fxOutput); 3633 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, effectDesc->mIo, 3634 fxOutput); 3635 moved.add(effectDesc->mIo); 3636 } 3637 effectDesc->mIo = fxOutput; 3638 } 3639 } 3640 } 3641 // Move tracks associated to this strategy from previous output to new output 3642 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 3643 if (getStrategy((audio_stream_type_t)i) == strategy) { 3644 mpClientInterface->invalidateStream((audio_stream_type_t)i); 3645 } 3646 } 3647 } 3648} 3649 3650void AudioPolicyManager::checkOutputForAllStrategies() 3651{ 3652 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 3653 checkOutputForStrategy(STRATEGY_PHONE); 3654 checkOutputForStrategy(STRATEGY_SONIFICATION); 3655 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 3656 checkOutputForStrategy(STRATEGY_MEDIA); 3657 checkOutputForStrategy(STRATEGY_DTMF); 3658} 3659 3660audio_io_handle_t AudioPolicyManager::getA2dpOutput() 3661{ 3662 for (size_t i = 0; i < mOutputs.size(); i++) { 3663 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 3664 if (!outputDesc->isDuplicated() && outputDesc->device() & AUDIO_DEVICE_OUT_ALL_A2DP) { 3665 return mOutputs.keyAt(i); 3666 } 3667 } 3668 3669 return 0; 3670} 3671 3672void AudioPolicyManager::checkA2dpSuspend() 3673{ 3674 audio_io_handle_t a2dpOutput = getA2dpOutput(); 3675 if (a2dpOutput == 0) { 3676 mA2dpSuspended = false; 3677 return; 3678 } 3679 3680 bool isScoConnected = 3681 (mAvailableInputDevices.types() & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) != 0; 3682 // suspend A2DP output if: 3683 // (NOT already suspended) && 3684 // ((SCO device is connected && 3685 // (forced usage for communication || for record is SCO))) || 3686 // (phone state is ringing || in call) 3687 // 3688 // restore A2DP output if: 3689 // (Already suspended) && 3690 // ((SCO device is NOT connected || 3691 // (forced usage NOT for communication && NOT for record is SCO))) && 3692 // (phone state is NOT ringing && NOT in call) 3693 // 3694 if (mA2dpSuspended) { 3695 if ((!isScoConnected || 3696 ((mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] != AUDIO_POLICY_FORCE_BT_SCO) && 3697 (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] != AUDIO_POLICY_FORCE_BT_SCO))) && 3698 ((mPhoneState != AUDIO_MODE_IN_CALL) && 3699 (mPhoneState != AUDIO_MODE_RINGTONE))) { 3700 3701 mpClientInterface->restoreOutput(a2dpOutput); 3702 mA2dpSuspended = false; 3703 } 3704 } else { 3705 if ((isScoConnected && 3706 ((mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO) || 3707 (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO))) || 3708 ((mPhoneState == AUDIO_MODE_IN_CALL) || 3709 (mPhoneState == AUDIO_MODE_RINGTONE))) { 3710 3711 mpClientInterface->suspendOutput(a2dpOutput); 3712 mA2dpSuspended = true; 3713 } 3714 } 3715} 3716 3717audio_devices_t AudioPolicyManager::getNewOutputDevice(audio_io_handle_t output, bool fromCache) 3718{ 3719 audio_devices_t device = AUDIO_DEVICE_NONE; 3720 3721 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 3722 3723 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3724 if (index >= 0) { 3725 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3726 if (patchDesc->mUid != mUidCached) { 3727 ALOGV("getNewOutputDevice() device %08x forced by patch %d", 3728 outputDesc->device(), outputDesc->mPatchHandle); 3729 return outputDesc->device(); 3730 } 3731 } 3732 3733 // check the following by order of priority to request a routing change if necessary: 3734 // 1: the strategy enforced audible is active on the output: 3735 // use device for strategy enforced audible 3736 // 2: we are in call or the strategy phone is active on the output: 3737 // use device for strategy phone 3738 // 3: the strategy sonification is active on the output: 3739 // use device for strategy sonification 3740 // 4: the strategy "respectful" sonification is active on the output: 3741 // use device for strategy "respectful" sonification 3742 // 5: the strategy media is active on the output: 3743 // use device for strategy media 3744 // 6: the strategy DTMF is active on the output: 3745 // use device for strategy DTMF 3746 if (outputDesc->isStrategyActive(STRATEGY_ENFORCED_AUDIBLE)) { 3747 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 3748 } else if (isInCall() || 3749 outputDesc->isStrategyActive(STRATEGY_PHONE)) { 3750 device = getDeviceForStrategy(STRATEGY_PHONE, fromCache); 3751 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION)) { 3752 device = getDeviceForStrategy(STRATEGY_SONIFICATION, fromCache); 3753 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION_RESPECTFUL)) { 3754 device = getDeviceForStrategy(STRATEGY_SONIFICATION_RESPECTFUL, fromCache); 3755 } else if (outputDesc->isStrategyActive(STRATEGY_MEDIA)) { 3756 device = getDeviceForStrategy(STRATEGY_MEDIA, fromCache); 3757 } else if (outputDesc->isStrategyActive(STRATEGY_DTMF)) { 3758 device = getDeviceForStrategy(STRATEGY_DTMF, fromCache); 3759 } 3760 3761 ALOGV("getNewOutputDevice() selected device %x", device); 3762 return device; 3763} 3764 3765audio_devices_t AudioPolicyManager::getNewInputDevice(audio_io_handle_t input) 3766{ 3767 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 3768 3769 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 3770 if (index >= 0) { 3771 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3772 if (patchDesc->mUid != mUidCached) { 3773 ALOGV("getNewInputDevice() device %08x forced by patch %d", 3774 inputDesc->mDevice, inputDesc->mPatchHandle); 3775 return inputDesc->mDevice; 3776 } 3777 } 3778 3779 audio_devices_t device = getDeviceForInputSource(inputDesc->mInputSource); 3780 3781 ALOGV("getNewInputDevice() selected device %x", device); 3782 return device; 3783} 3784 3785uint32_t AudioPolicyManager::getStrategyForStream(audio_stream_type_t stream) { 3786 return (uint32_t)getStrategy(stream); 3787} 3788 3789audio_devices_t AudioPolicyManager::getDevicesForStream(audio_stream_type_t stream) { 3790 // By checking the range of stream before calling getStrategy, we avoid 3791 // getStrategy's behavior for invalid streams. getStrategy would do a ALOGE 3792 // and then return STRATEGY_MEDIA, but we want to return the empty set. 3793 if (stream < (audio_stream_type_t) 0 || stream >= AUDIO_STREAM_CNT) { 3794 return AUDIO_DEVICE_NONE; 3795 } 3796 audio_devices_t devices; 3797 AudioPolicyManager::routing_strategy strategy = getStrategy(stream); 3798 devices = getDeviceForStrategy(strategy, true /*fromCache*/); 3799 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(devices, mOutputs); 3800 for (size_t i = 0; i < outputs.size(); i++) { 3801 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 3802 if (outputDesc->isStrategyActive(strategy)) { 3803 devices = outputDesc->device(); 3804 break; 3805 } 3806 } 3807 return devices; 3808} 3809 3810AudioPolicyManager::routing_strategy AudioPolicyManager::getStrategy( 3811 audio_stream_type_t stream) { 3812 // stream to strategy mapping 3813 switch (stream) { 3814 case AUDIO_STREAM_VOICE_CALL: 3815 case AUDIO_STREAM_BLUETOOTH_SCO: 3816 return STRATEGY_PHONE; 3817 case AUDIO_STREAM_RING: 3818 case AUDIO_STREAM_ALARM: 3819 return STRATEGY_SONIFICATION; 3820 case AUDIO_STREAM_NOTIFICATION: 3821 return STRATEGY_SONIFICATION_RESPECTFUL; 3822 case AUDIO_STREAM_DTMF: 3823 return STRATEGY_DTMF; 3824 default: 3825 ALOGE("unknown stream type"); 3826 case AUDIO_STREAM_SYSTEM: 3827 // NOTE: SYSTEM stream uses MEDIA strategy because muting music and switching outputs 3828 // while key clicks are played produces a poor result 3829 case AUDIO_STREAM_TTS: 3830 case AUDIO_STREAM_MUSIC: 3831 return STRATEGY_MEDIA; 3832 case AUDIO_STREAM_ENFORCED_AUDIBLE: 3833 return STRATEGY_ENFORCED_AUDIBLE; 3834 } 3835} 3836 3837uint32_t AudioPolicyManager::getStrategyForAttr(const audio_attributes_t *attr) { 3838 // flags to strategy mapping 3839 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 3840 return (uint32_t) STRATEGY_ENFORCED_AUDIBLE; 3841 } 3842 3843 // usage to strategy mapping 3844 switch (attr->usage) { 3845 case AUDIO_USAGE_MEDIA: 3846 case AUDIO_USAGE_GAME: 3847 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 3848 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 3849 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 3850 return (uint32_t) STRATEGY_MEDIA; 3851 3852 case AUDIO_USAGE_VOICE_COMMUNICATION: 3853 return (uint32_t) STRATEGY_PHONE; 3854 3855 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 3856 return (uint32_t) STRATEGY_DTMF; 3857 3858 case AUDIO_USAGE_ALARM: 3859 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 3860 return (uint32_t) STRATEGY_SONIFICATION; 3861 3862 case AUDIO_USAGE_NOTIFICATION: 3863 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 3864 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 3865 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 3866 case AUDIO_USAGE_NOTIFICATION_EVENT: 3867 return (uint32_t) STRATEGY_SONIFICATION_RESPECTFUL; 3868 3869 case AUDIO_USAGE_UNKNOWN: 3870 default: 3871 return (uint32_t) STRATEGY_MEDIA; 3872 } 3873} 3874 3875void AudioPolicyManager::handleNotificationRoutingForStream(audio_stream_type_t stream) { 3876 switch(stream) { 3877 case AUDIO_STREAM_MUSIC: 3878 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 3879 updateDevicesAndOutputs(); 3880 break; 3881 default: 3882 break; 3883 } 3884} 3885 3886audio_devices_t AudioPolicyManager::getDeviceForStrategy(routing_strategy strategy, 3887 bool fromCache) 3888{ 3889 uint32_t device = AUDIO_DEVICE_NONE; 3890 3891 if (fromCache) { 3892 ALOGVV("getDeviceForStrategy() from cache strategy %d, device %x", 3893 strategy, mDeviceForStrategy[strategy]); 3894 return mDeviceForStrategy[strategy]; 3895 } 3896 audio_devices_t availableOutputDeviceTypes = mAvailableOutputDevices.types(); 3897 switch (strategy) { 3898 3899 case STRATEGY_SONIFICATION_RESPECTFUL: 3900 if (isInCall()) { 3901 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 3902 } else if (isStreamActiveRemotely(AUDIO_STREAM_MUSIC, 3903 SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { 3904 // while media is playing on a remote device, use the the sonification behavior. 3905 // Note that we test this usecase before testing if media is playing because 3906 // the isStreamActive() method only informs about the activity of a stream, not 3907 // if it's for local playback. Note also that we use the same delay between both tests 3908 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 3909 } else if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { 3910 // while media is playing (or has recently played), use the same device 3911 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); 3912 } else { 3913 // when media is not playing anymore, fall back on the sonification behavior 3914 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 3915 } 3916 3917 break; 3918 3919 case STRATEGY_DTMF: 3920 if (!isInCall()) { 3921 // when off call, DTMF strategy follows the same rules as MEDIA strategy 3922 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); 3923 break; 3924 } 3925 // when in call, DTMF and PHONE strategies follow the same rules 3926 // FALL THROUGH 3927 3928 case STRATEGY_PHONE: 3929 // Force use of only devices on primary output if: 3930 // - in call AND 3931 // - cannot route from voice call RX OR 3932 // - audio HAL version is < 3.0 and TX device is on the primary HW module 3933 if (mPhoneState == AUDIO_MODE_IN_CALL) { 3934 audio_devices_t txDevice = getDeviceForInputSource(AUDIO_SOURCE_VOICE_COMMUNICATION); 3935 sp<AudioOutputDescriptor> hwOutputDesc = mOutputs.valueFor(mPrimaryOutput); 3936 if (((mAvailableInputDevices.types() & 3937 AUDIO_DEVICE_IN_TELEPHONY_RX & ~AUDIO_DEVICE_BIT_IN) == 0) || 3938 (((txDevice & availablePrimaryInputDevices() & ~AUDIO_DEVICE_BIT_IN) != 0) && 3939 (hwOutputDesc->getAudioPort()->mModule->mHalVersion < 3940 AUDIO_DEVICE_API_VERSION_3_0))) { 3941 availableOutputDeviceTypes = availablePrimaryOutputDevices(); 3942 } 3943 } 3944 // for phone strategy, we first consider the forced use and then the available devices by order 3945 // of priority 3946 switch (mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]) { 3947 case AUDIO_POLICY_FORCE_BT_SCO: 3948 if (!isInCall() || strategy != STRATEGY_DTMF) { 3949 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT; 3950 if (device) break; 3951 } 3952 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET; 3953 if (device) break; 3954 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO; 3955 if (device) break; 3956 // if SCO device is requested but no SCO device is available, fall back to default case 3957 // FALL THROUGH 3958 3959 default: // FORCE_NONE 3960 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to A2DP 3961 if (!isInCall() && 3962 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 3963 (getA2dpOutput() != 0) && !mA2dpSuspended) { 3964 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; 3965 if (device) break; 3966 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; 3967 if (device) break; 3968 } 3969 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; 3970 if (device) break; 3971 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADSET; 3972 if (device) break; 3973 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 3974 if (device) break; 3975 if (mPhoneState != AUDIO_MODE_IN_CALL) { 3976 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 3977 if (device) break; 3978 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 3979 if (device) break; 3980 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 3981 if (device) break; 3982 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 3983 if (device) break; 3984 } 3985 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_EARPIECE; 3986 if (device) break; 3987 device = mDefaultOutputDevice->mDeviceType; 3988 if (device == AUDIO_DEVICE_NONE) { 3989 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE"); 3990 } 3991 break; 3992 3993 case AUDIO_POLICY_FORCE_SPEAKER: 3994 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to 3995 // A2DP speaker when forcing to speaker output 3996 if (!isInCall() && 3997 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 3998 (getA2dpOutput() != 0) && !mA2dpSuspended) { 3999 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; 4000 if (device) break; 4001 } 4002 if (mPhoneState != AUDIO_MODE_IN_CALL) { 4003 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 4004 if (device) break; 4005 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 4006 if (device) break; 4007 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 4008 if (device) break; 4009 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 4010 if (device) break; 4011 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 4012 if (device) break; 4013 } 4014 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_LINE; 4015 if (device) break; 4016 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4017 if (device) break; 4018 device = mDefaultOutputDevice->mDeviceType; 4019 if (device == AUDIO_DEVICE_NONE) { 4020 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE, FORCE_SPEAKER"); 4021 } 4022 break; 4023 } 4024 break; 4025 4026 case STRATEGY_SONIFICATION: 4027 4028 // If incall, just select the STRATEGY_PHONE device: The rest of the behavior is handled by 4029 // handleIncallSonification(). 4030 if (isInCall()) { 4031 device = getDeviceForStrategy(STRATEGY_PHONE, false /*fromCache*/); 4032 break; 4033 } 4034 // FALL THROUGH 4035 4036 case STRATEGY_ENFORCED_AUDIBLE: 4037 // strategy STRATEGY_ENFORCED_AUDIBLE uses same routing policy as STRATEGY_SONIFICATION 4038 // except: 4039 // - when in call where it doesn't default to STRATEGY_PHONE behavior 4040 // - in countries where not enforced in which case it follows STRATEGY_MEDIA 4041 4042 if ((strategy == STRATEGY_SONIFICATION) || 4043 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED)) { 4044 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4045 if (device == AUDIO_DEVICE_NONE) { 4046 ALOGE("getDeviceForStrategy() speaker device not found for STRATEGY_SONIFICATION"); 4047 } 4048 } 4049 // The second device used for sonification is the same as the device used by media strategy 4050 // FALL THROUGH 4051 4052 case STRATEGY_MEDIA: { 4053 uint32_t device2 = AUDIO_DEVICE_NONE; 4054 if (strategy != STRATEGY_SONIFICATION) { 4055 // no sonification on remote submix (e.g. WFD) 4056 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_REMOTE_SUBMIX; 4057 } 4058 if ((device2 == AUDIO_DEVICE_NONE) && 4059 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 4060 (getA2dpOutput() != 0) && !mA2dpSuspended) { 4061 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; 4062 if (device2 == AUDIO_DEVICE_NONE) { 4063 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; 4064 } 4065 if (device2 == AUDIO_DEVICE_NONE) { 4066 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; 4067 } 4068 } 4069 if (device2 == AUDIO_DEVICE_NONE) { 4070 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; 4071 } 4072 if ((device2 == AUDIO_DEVICE_NONE)) { 4073 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_LINE; 4074 } 4075 if (device2 == AUDIO_DEVICE_NONE) { 4076 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADSET; 4077 } 4078 if (device2 == AUDIO_DEVICE_NONE) { 4079 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 4080 } 4081 if (device2 == AUDIO_DEVICE_NONE) { 4082 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 4083 } 4084 if (device2 == AUDIO_DEVICE_NONE) { 4085 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 4086 } 4087 if ((device2 == AUDIO_DEVICE_NONE) && (strategy != STRATEGY_SONIFICATION)) { 4088 // no sonification on aux digital (e.g. HDMI) 4089 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 4090 } 4091 if ((device2 == AUDIO_DEVICE_NONE) && 4092 (mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK] == AUDIO_POLICY_FORCE_ANALOG_DOCK)) { 4093 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 4094 } 4095 if (device2 == AUDIO_DEVICE_NONE) { 4096 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 4097 } 4098 int device3 = AUDIO_DEVICE_NONE; 4099 if (strategy == STRATEGY_MEDIA) { 4100 // ARC, SPDIF and AUX_LINE can co-exist with others. 4101 device3 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_HDMI_ARC; 4102 device3 |= (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPDIF); 4103 device3 |= (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_LINE); 4104 } 4105 4106 device2 |= device3; 4107 // device is DEVICE_OUT_SPEAKER if we come from case STRATEGY_SONIFICATION or 4108 // STRATEGY_ENFORCED_AUDIBLE, AUDIO_DEVICE_NONE otherwise 4109 device |= device2; 4110 4111 // If hdmi system audio mode is on, remove speaker out of output list. 4112 if ((strategy == STRATEGY_MEDIA) && 4113 (mForceUse[AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO] == 4114 AUDIO_POLICY_FORCE_HDMI_SYSTEM_AUDIO_ENFORCED)) { 4115 device &= ~AUDIO_DEVICE_OUT_SPEAKER; 4116 } 4117 4118 if (device) break; 4119 device = mDefaultOutputDevice->mDeviceType; 4120 if (device == AUDIO_DEVICE_NONE) { 4121 ALOGE("getDeviceForStrategy() no device found for STRATEGY_MEDIA"); 4122 } 4123 } break; 4124 4125 default: 4126 ALOGW("getDeviceForStrategy() unknown strategy: %d", strategy); 4127 break; 4128 } 4129 4130 ALOGVV("getDeviceForStrategy() strategy %d, device %x", strategy, device); 4131 return device; 4132} 4133 4134void AudioPolicyManager::updateDevicesAndOutputs() 4135{ 4136 for (int i = 0; i < NUM_STRATEGIES; i++) { 4137 mDeviceForStrategy[i] = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 4138 } 4139 mPreviousOutputs = mOutputs; 4140} 4141 4142uint32_t AudioPolicyManager::checkDeviceMuteStrategies(sp<AudioOutputDescriptor> outputDesc, 4143 audio_devices_t prevDevice, 4144 uint32_t delayMs) 4145{ 4146 // mute/unmute strategies using an incompatible device combination 4147 // if muting, wait for the audio in pcm buffer to be drained before proceeding 4148 // if unmuting, unmute only after the specified delay 4149 if (outputDesc->isDuplicated()) { 4150 return 0; 4151 } 4152 4153 uint32_t muteWaitMs = 0; 4154 audio_devices_t device = outputDesc->device(); 4155 bool shouldMute = outputDesc->isActive() && (popcount(device) >= 2); 4156 4157 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 4158 audio_devices_t curDevice = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 4159 bool mute = shouldMute && (curDevice & device) && (curDevice != device); 4160 bool doMute = false; 4161 4162 if (mute && !outputDesc->mStrategyMutedByDevice[i]) { 4163 doMute = true; 4164 outputDesc->mStrategyMutedByDevice[i] = true; 4165 } else if (!mute && outputDesc->mStrategyMutedByDevice[i]){ 4166 doMute = true; 4167 outputDesc->mStrategyMutedByDevice[i] = false; 4168 } 4169 if (doMute) { 4170 for (size_t j = 0; j < mOutputs.size(); j++) { 4171 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(j); 4172 // skip output if it does not share any device with current output 4173 if ((desc->supportedDevices() & outputDesc->supportedDevices()) 4174 == AUDIO_DEVICE_NONE) { 4175 continue; 4176 } 4177 audio_io_handle_t curOutput = mOutputs.keyAt(j); 4178 ALOGVV("checkDeviceMuteStrategies() %s strategy %d (curDevice %04x) on output %d", 4179 mute ? "muting" : "unmuting", i, curDevice, curOutput); 4180 setStrategyMute((routing_strategy)i, mute, curOutput, mute ? 0 : delayMs); 4181 if (desc->isStrategyActive((routing_strategy)i)) { 4182 if (mute) { 4183 // FIXME: should not need to double latency if volume could be applied 4184 // immediately by the audioflinger mixer. We must account for the delay 4185 // between now and the next time the audioflinger thread for this output 4186 // will process a buffer (which corresponds to one buffer size, 4187 // usually 1/2 or 1/4 of the latency). 4188 if (muteWaitMs < desc->latency() * 2) { 4189 muteWaitMs = desc->latency() * 2; 4190 } 4191 } 4192 } 4193 } 4194 } 4195 } 4196 4197 // temporary mute output if device selection changes to avoid volume bursts due to 4198 // different per device volumes 4199 if (outputDesc->isActive() && (device != prevDevice)) { 4200 if (muteWaitMs < outputDesc->latency() * 2) { 4201 muteWaitMs = outputDesc->latency() * 2; 4202 } 4203 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 4204 if (outputDesc->isStrategyActive((routing_strategy)i)) { 4205 setStrategyMute((routing_strategy)i, true, outputDesc->mIoHandle); 4206 // do tempMute unmute after twice the mute wait time 4207 setStrategyMute((routing_strategy)i, false, outputDesc->mIoHandle, 4208 muteWaitMs *2, device); 4209 } 4210 } 4211 } 4212 4213 // wait for the PCM output buffers to empty before proceeding with the rest of the command 4214 if (muteWaitMs > delayMs) { 4215 muteWaitMs -= delayMs; 4216 usleep(muteWaitMs * 1000); 4217 return muteWaitMs; 4218 } 4219 return 0; 4220} 4221 4222uint32_t AudioPolicyManager::setOutputDevice(audio_io_handle_t output, 4223 audio_devices_t device, 4224 bool force, 4225 int delayMs, 4226 audio_patch_handle_t *patchHandle, 4227 const char* address) 4228{ 4229 ALOGV("setOutputDevice() output %d device %04x delayMs %d", output, device, delayMs); 4230 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4231 AudioParameter param; 4232 uint32_t muteWaitMs; 4233 4234 if (outputDesc->isDuplicated()) { 4235 muteWaitMs = setOutputDevice(outputDesc->mOutput1->mIoHandle, device, force, delayMs); 4236 muteWaitMs += setOutputDevice(outputDesc->mOutput2->mIoHandle, device, force, delayMs); 4237 return muteWaitMs; 4238 } 4239 // no need to proceed if new device is not AUDIO_DEVICE_NONE and not supported by current 4240 // output profile 4241 if ((device != AUDIO_DEVICE_NONE) && 4242 ((device & outputDesc->mProfile->mSupportedDevices.types()) == 0)) { 4243 return 0; 4244 } 4245 4246 // filter devices according to output selected 4247 device = (audio_devices_t)(device & outputDesc->mProfile->mSupportedDevices.types()); 4248 4249 audio_devices_t prevDevice = outputDesc->mDevice; 4250 4251 ALOGV("setOutputDevice() prevDevice %04x", prevDevice); 4252 4253 if (device != AUDIO_DEVICE_NONE) { 4254 outputDesc->mDevice = device; 4255 } 4256 muteWaitMs = checkDeviceMuteStrategies(outputDesc, prevDevice, delayMs); 4257 4258 // Do not change the routing if: 4259 // - the requested device is AUDIO_DEVICE_NONE 4260 // - the requested device is the same as current device and force is not specified. 4261 // Doing this check here allows the caller to call setOutputDevice() without conditions 4262 if ((device == AUDIO_DEVICE_NONE || device == prevDevice) && !force) { 4263 ALOGV("setOutputDevice() setting same device %04x or null device for output %d", device, output); 4264 return muteWaitMs; 4265 } 4266 4267 ALOGV("setOutputDevice() changing device"); 4268 4269 // do the routing 4270 if (device == AUDIO_DEVICE_NONE) { 4271 resetOutputDevice(output, delayMs, NULL); 4272 } else { 4273 DeviceVector deviceList = (address == NULL) ? 4274 mAvailableOutputDevices.getDevicesFromType(device) 4275 : mAvailableOutputDevices.getDevicesFromTypeAddr(device, String8(address)); 4276 if (!deviceList.isEmpty()) { 4277 struct audio_patch patch; 4278 outputDesc->toAudioPortConfig(&patch.sources[0]); 4279 patch.num_sources = 1; 4280 patch.num_sinks = 0; 4281 for (size_t i = 0; i < deviceList.size() && i < AUDIO_PATCH_PORTS_MAX; i++) { 4282 deviceList.itemAt(i)->toAudioPortConfig(&patch.sinks[i]); 4283 patch.num_sinks++; 4284 } 4285 ssize_t index; 4286 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 4287 index = mAudioPatches.indexOfKey(*patchHandle); 4288 } else { 4289 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4290 } 4291 sp< AudioPatch> patchDesc; 4292 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 4293 if (index >= 0) { 4294 patchDesc = mAudioPatches.valueAt(index); 4295 afPatchHandle = patchDesc->mAfPatchHandle; 4296 } 4297 4298 status_t status = mpClientInterface->createAudioPatch(&patch, 4299 &afPatchHandle, 4300 delayMs); 4301 ALOGV("setOutputDevice() createAudioPatch returned %d patchHandle %d" 4302 "num_sources %d num_sinks %d", 4303 status, afPatchHandle, patch.num_sources, patch.num_sinks); 4304 if (status == NO_ERROR) { 4305 if (index < 0) { 4306 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 4307 &patch, mUidCached); 4308 addAudioPatch(patchDesc->mHandle, patchDesc); 4309 } else { 4310 patchDesc->mPatch = patch; 4311 } 4312 patchDesc->mAfPatchHandle = afPatchHandle; 4313 patchDesc->mUid = mUidCached; 4314 if (patchHandle) { 4315 *patchHandle = patchDesc->mHandle; 4316 } 4317 outputDesc->mPatchHandle = patchDesc->mHandle; 4318 nextAudioPortGeneration(); 4319 mpClientInterface->onAudioPatchListUpdate(); 4320 } 4321 } 4322 4323 // inform all input as well 4324 for (size_t i = 0; i < mInputs.size(); i++) { 4325 const sp<AudioInputDescriptor> inputDescriptor = mInputs.valueAt(i); 4326 if (!isVirtualInputDevice(inputDescriptor->mDevice)) { 4327 AudioParameter inputCmd = AudioParameter(); 4328 ALOGV("%s: inform input %d of device:%d", __func__, 4329 inputDescriptor->mIoHandle, device); 4330 inputCmd.addInt(String8(AudioParameter::keyRouting),device); 4331 mpClientInterface->setParameters(inputDescriptor->mIoHandle, 4332 inputCmd.toString(), 4333 delayMs); 4334 } 4335 } 4336 } 4337 4338 // update stream volumes according to new device 4339 applyStreamVolumes(output, device, delayMs); 4340 4341 return muteWaitMs; 4342} 4343 4344status_t AudioPolicyManager::resetOutputDevice(audio_io_handle_t output, 4345 int delayMs, 4346 audio_patch_handle_t *patchHandle) 4347{ 4348 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4349 ssize_t index; 4350 if (patchHandle) { 4351 index = mAudioPatches.indexOfKey(*patchHandle); 4352 } else { 4353 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4354 } 4355 if (index < 0) { 4356 return INVALID_OPERATION; 4357 } 4358 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4359 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, delayMs); 4360 ALOGV("resetOutputDevice() releaseAudioPatch returned %d", status); 4361 outputDesc->mPatchHandle = 0; 4362 removeAudioPatch(patchDesc->mHandle); 4363 nextAudioPortGeneration(); 4364 mpClientInterface->onAudioPatchListUpdate(); 4365 return status; 4366} 4367 4368status_t AudioPolicyManager::setInputDevice(audio_io_handle_t input, 4369 audio_devices_t device, 4370 bool force, 4371 audio_patch_handle_t *patchHandle) 4372{ 4373 status_t status = NO_ERROR; 4374 4375 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4376 if ((device != AUDIO_DEVICE_NONE) && ((device != inputDesc->mDevice) || force)) { 4377 inputDesc->mDevice = device; 4378 4379 DeviceVector deviceList = mAvailableInputDevices.getDevicesFromType(device); 4380 if (!deviceList.isEmpty()) { 4381 struct audio_patch patch; 4382 inputDesc->toAudioPortConfig(&patch.sinks[0]); 4383 // AUDIO_SOURCE_HOTWORD is for internal use only: 4384 // handled as AUDIO_SOURCE_VOICE_RECOGNITION by the audio HAL 4385 if (patch.sinks[0].ext.mix.usecase.source == AUDIO_SOURCE_HOTWORD && 4386 !inputDesc->mIsSoundTrigger) { 4387 patch.sinks[0].ext.mix.usecase.source = AUDIO_SOURCE_VOICE_RECOGNITION; 4388 } 4389 patch.num_sinks = 1; 4390 //only one input device for now 4391 deviceList.itemAt(0)->toAudioPortConfig(&patch.sources[0]); 4392 patch.num_sources = 1; 4393 ssize_t index; 4394 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 4395 index = mAudioPatches.indexOfKey(*patchHandle); 4396 } else { 4397 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4398 } 4399 sp< AudioPatch> patchDesc; 4400 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 4401 if (index >= 0) { 4402 patchDesc = mAudioPatches.valueAt(index); 4403 afPatchHandle = patchDesc->mAfPatchHandle; 4404 } 4405 4406 status_t status = mpClientInterface->createAudioPatch(&patch, 4407 &afPatchHandle, 4408 0); 4409 ALOGV("setInputDevice() createAudioPatch returned %d patchHandle %d", 4410 status, afPatchHandle); 4411 if (status == NO_ERROR) { 4412 if (index < 0) { 4413 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 4414 &patch, mUidCached); 4415 addAudioPatch(patchDesc->mHandle, patchDesc); 4416 } else { 4417 patchDesc->mPatch = patch; 4418 } 4419 patchDesc->mAfPatchHandle = afPatchHandle; 4420 patchDesc->mUid = mUidCached; 4421 if (patchHandle) { 4422 *patchHandle = patchDesc->mHandle; 4423 } 4424 inputDesc->mPatchHandle = patchDesc->mHandle; 4425 nextAudioPortGeneration(); 4426 mpClientInterface->onAudioPatchListUpdate(); 4427 } 4428 } 4429 } 4430 return status; 4431} 4432 4433status_t AudioPolicyManager::resetInputDevice(audio_io_handle_t input, 4434 audio_patch_handle_t *patchHandle) 4435{ 4436 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4437 ssize_t index; 4438 if (patchHandle) { 4439 index = mAudioPatches.indexOfKey(*patchHandle); 4440 } else { 4441 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4442 } 4443 if (index < 0) { 4444 return INVALID_OPERATION; 4445 } 4446 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4447 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 4448 ALOGV("resetInputDevice() releaseAudioPatch returned %d", status); 4449 inputDesc->mPatchHandle = 0; 4450 removeAudioPatch(patchDesc->mHandle); 4451 nextAudioPortGeneration(); 4452 mpClientInterface->onAudioPatchListUpdate(); 4453 return status; 4454} 4455 4456sp<AudioPolicyManager::IOProfile> AudioPolicyManager::getInputProfile(audio_devices_t device, 4457 uint32_t& samplingRate, 4458 audio_format_t format, 4459 audio_channel_mask_t channelMask, 4460 audio_input_flags_t flags) 4461{ 4462 // Choose an input profile based on the requested capture parameters: select the first available 4463 // profile supporting all requested parameters. 4464 4465 for (size_t i = 0; i < mHwModules.size(); i++) 4466 { 4467 if (mHwModules[i]->mHandle == 0) { 4468 continue; 4469 } 4470 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 4471 { 4472 sp<IOProfile> profile = mHwModules[i]->mInputProfiles[j]; 4473 // profile->log(); 4474 if (profile->isCompatibleProfile(device, samplingRate, 4475 &samplingRate /*updatedSamplingRate*/, 4476 format, channelMask, (audio_output_flags_t) flags)) { 4477 return profile; 4478 } 4479 } 4480 } 4481 return NULL; 4482} 4483 4484audio_devices_t AudioPolicyManager::getDeviceForInputSource(audio_source_t inputSource) 4485{ 4486 uint32_t device = AUDIO_DEVICE_NONE; 4487 audio_devices_t availableDeviceTypes = mAvailableInputDevices.types() & 4488 ~AUDIO_DEVICE_BIT_IN; 4489 switch (inputSource) { 4490 case AUDIO_SOURCE_VOICE_UPLINK: 4491 if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) { 4492 device = AUDIO_DEVICE_IN_VOICE_CALL; 4493 break; 4494 } 4495 break; 4496 4497 case AUDIO_SOURCE_DEFAULT: 4498 case AUDIO_SOURCE_MIC: 4499 if (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_A2DP) { 4500 device = AUDIO_DEVICE_IN_BLUETOOTH_A2DP; 4501 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 4502 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 4503 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 4504 device = AUDIO_DEVICE_IN_USB_DEVICE; 4505 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 4506 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 4507 } 4508 break; 4509 4510 case AUDIO_SOURCE_VOICE_COMMUNICATION: 4511 // Allow only use of devices on primary input if in call and HAL does not support routing 4512 // to voice call path. 4513 if ((mPhoneState == AUDIO_MODE_IN_CALL) && 4514 (mAvailableOutputDevices.types() & AUDIO_DEVICE_OUT_TELEPHONY_TX) == 0) { 4515 availableDeviceTypes = availablePrimaryInputDevices() & ~AUDIO_DEVICE_BIT_IN; 4516 } 4517 4518 switch (mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]) { 4519 case AUDIO_POLICY_FORCE_BT_SCO: 4520 // if SCO device is requested but no SCO device is available, fall back to default case 4521 if (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) { 4522 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 4523 break; 4524 } 4525 // FALL THROUGH 4526 4527 default: // FORCE_NONE 4528 if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 4529 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 4530 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 4531 device = AUDIO_DEVICE_IN_USB_DEVICE; 4532 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 4533 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 4534 } 4535 break; 4536 4537 case AUDIO_POLICY_FORCE_SPEAKER: 4538 if (availableDeviceTypes & AUDIO_DEVICE_IN_BACK_MIC) { 4539 device = AUDIO_DEVICE_IN_BACK_MIC; 4540 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 4541 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 4542 } 4543 break; 4544 } 4545 break; 4546 4547 case AUDIO_SOURCE_VOICE_RECOGNITION: 4548 case AUDIO_SOURCE_HOTWORD: 4549 if (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO && 4550 availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) { 4551 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 4552 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 4553 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 4554 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 4555 device = AUDIO_DEVICE_IN_USB_DEVICE; 4556 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 4557 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 4558 } 4559 break; 4560 case AUDIO_SOURCE_CAMCORDER: 4561 if (availableDeviceTypes & AUDIO_DEVICE_IN_BACK_MIC) { 4562 device = AUDIO_DEVICE_IN_BACK_MIC; 4563 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 4564 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 4565 } 4566 break; 4567 case AUDIO_SOURCE_VOICE_DOWNLINK: 4568 case AUDIO_SOURCE_VOICE_CALL: 4569 if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) { 4570 device = AUDIO_DEVICE_IN_VOICE_CALL; 4571 } 4572 break; 4573 case AUDIO_SOURCE_REMOTE_SUBMIX: 4574 if (availableDeviceTypes & AUDIO_DEVICE_IN_REMOTE_SUBMIX) { 4575 device = AUDIO_DEVICE_IN_REMOTE_SUBMIX; 4576 } 4577 break; 4578 default: 4579 ALOGW("getDeviceForInputSource() invalid input source %d", inputSource); 4580 break; 4581 } 4582 ALOGV("getDeviceForInputSource()input source %d, device %08x", inputSource, device); 4583 return device; 4584} 4585 4586bool AudioPolicyManager::isVirtualInputDevice(audio_devices_t device) 4587{ 4588 if ((device & AUDIO_DEVICE_BIT_IN) != 0) { 4589 device &= ~AUDIO_DEVICE_BIT_IN; 4590 if ((popcount(device) == 1) && ((device & ~APM_AUDIO_IN_DEVICE_VIRTUAL_ALL) == 0)) 4591 return true; 4592 } 4593 return false; 4594} 4595 4596bool AudioPolicyManager::deviceDistinguishesOnAddress(audio_devices_t device) { 4597 return ((device & APM_AUDIO_DEVICE_MATCH_ADDRESS_ALL) != 0); 4598} 4599 4600audio_io_handle_t AudioPolicyManager::getActiveInput(bool ignoreVirtualInputs) 4601{ 4602 for (size_t i = 0; i < mInputs.size(); i++) { 4603 const sp<AudioInputDescriptor> input_descriptor = mInputs.valueAt(i); 4604 if ((input_descriptor->mRefCount > 0) 4605 && (!ignoreVirtualInputs || !isVirtualInputDevice(input_descriptor->mDevice))) { 4606 return mInputs.keyAt(i); 4607 } 4608 } 4609 return 0; 4610} 4611 4612uint32_t AudioPolicyManager::activeInputsCount() const 4613{ 4614 uint32_t count = 0; 4615 for (size_t i = 0; i < mInputs.size(); i++) { 4616 const sp<AudioInputDescriptor> desc = mInputs.valueAt(i); 4617 if (desc->mRefCount > 0) { 4618 return count++; 4619 } 4620 } 4621 return count; 4622} 4623 4624 4625audio_devices_t AudioPolicyManager::getDeviceForVolume(audio_devices_t device) 4626{ 4627 if (device == AUDIO_DEVICE_NONE) { 4628 // this happens when forcing a route update and no track is active on an output. 4629 // In this case the returned category is not important. 4630 device = AUDIO_DEVICE_OUT_SPEAKER; 4631 } else if (popcount(device) > 1) { 4632 // Multiple device selection is either: 4633 // - speaker + one other device: give priority to speaker in this case. 4634 // - one A2DP device + another device: happens with duplicated output. In this case 4635 // retain the device on the A2DP output as the other must not correspond to an active 4636 // selection if not the speaker. 4637 if (device & AUDIO_DEVICE_OUT_SPEAKER) { 4638 device = AUDIO_DEVICE_OUT_SPEAKER; 4639 } else { 4640 device = (audio_devices_t)(device & AUDIO_DEVICE_OUT_ALL_A2DP); 4641 } 4642 } 4643 4644 ALOGW_IF(popcount(device) != 1, 4645 "getDeviceForVolume() invalid device combination: %08x", 4646 device); 4647 4648 return device; 4649} 4650 4651AudioPolicyManager::device_category AudioPolicyManager::getDeviceCategory(audio_devices_t device) 4652{ 4653 switch(getDeviceForVolume(device)) { 4654 case AUDIO_DEVICE_OUT_EARPIECE: 4655 return DEVICE_CATEGORY_EARPIECE; 4656 case AUDIO_DEVICE_OUT_WIRED_HEADSET: 4657 case AUDIO_DEVICE_OUT_WIRED_HEADPHONE: 4658 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO: 4659 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET: 4660 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP: 4661 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES: 4662 return DEVICE_CATEGORY_HEADSET; 4663 case AUDIO_DEVICE_OUT_LINE: 4664 case AUDIO_DEVICE_OUT_AUX_DIGITAL: 4665 /*USB? Remote submix?*/ 4666 return DEVICE_CATEGORY_EXT_MEDIA; 4667 case AUDIO_DEVICE_OUT_SPEAKER: 4668 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT: 4669 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER: 4670 case AUDIO_DEVICE_OUT_USB_ACCESSORY: 4671 case AUDIO_DEVICE_OUT_USB_DEVICE: 4672 case AUDIO_DEVICE_OUT_REMOTE_SUBMIX: 4673 default: 4674 return DEVICE_CATEGORY_SPEAKER; 4675 } 4676} 4677 4678float AudioPolicyManager::volIndexToAmpl(audio_devices_t device, const StreamDescriptor& streamDesc, 4679 int indexInUi) 4680{ 4681 device_category deviceCategory = getDeviceCategory(device); 4682 const VolumeCurvePoint *curve = streamDesc.mVolumeCurve[deviceCategory]; 4683 4684 // the volume index in the UI is relative to the min and max volume indices for this stream type 4685 int nbSteps = 1 + curve[VOLMAX].mIndex - 4686 curve[VOLMIN].mIndex; 4687 int volIdx = (nbSteps * (indexInUi - streamDesc.mIndexMin)) / 4688 (streamDesc.mIndexMax - streamDesc.mIndexMin); 4689 4690 // find what part of the curve this index volume belongs to, or if it's out of bounds 4691 int segment = 0; 4692 if (volIdx < curve[VOLMIN].mIndex) { // out of bounds 4693 return 0.0f; 4694 } else if (volIdx < curve[VOLKNEE1].mIndex) { 4695 segment = 0; 4696 } else if (volIdx < curve[VOLKNEE2].mIndex) { 4697 segment = 1; 4698 } else if (volIdx <= curve[VOLMAX].mIndex) { 4699 segment = 2; 4700 } else { // out of bounds 4701 return 1.0f; 4702 } 4703 4704 // linear interpolation in the attenuation table in dB 4705 float decibels = curve[segment].mDBAttenuation + 4706 ((float)(volIdx - curve[segment].mIndex)) * 4707 ( (curve[segment+1].mDBAttenuation - 4708 curve[segment].mDBAttenuation) / 4709 ((float)(curve[segment+1].mIndex - 4710 curve[segment].mIndex)) ); 4711 4712 float amplification = exp( decibels * 0.115129f); // exp( dB * ln(10) / 20 ) 4713 4714 ALOGVV("VOLUME vol index=[%d %d %d], dB=[%.1f %.1f %.1f] ampl=%.5f", 4715 curve[segment].mIndex, volIdx, 4716 curve[segment+1].mIndex, 4717 curve[segment].mDBAttenuation, 4718 decibels, 4719 curve[segment+1].mDBAttenuation, 4720 amplification); 4721 4722 return amplification; 4723} 4724 4725const AudioPolicyManager::VolumeCurvePoint 4726 AudioPolicyManager::sDefaultVolumeCurve[AudioPolicyManager::VOLCNT] = { 4727 {1, -49.5f}, {33, -33.5f}, {66, -17.0f}, {100, 0.0f} 4728}; 4729 4730const AudioPolicyManager::VolumeCurvePoint 4731 AudioPolicyManager::sDefaultMediaVolumeCurve[AudioPolicyManager::VOLCNT] = { 4732 {1, -58.0f}, {20, -40.0f}, {60, -17.0f}, {100, 0.0f} 4733}; 4734 4735const AudioPolicyManager::VolumeCurvePoint 4736 AudioPolicyManager::sExtMediaSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 4737 {1, -58.0f}, {20, -40.0f}, {60, -21.0f}, {100, -10.0f} 4738}; 4739 4740const AudioPolicyManager::VolumeCurvePoint 4741 AudioPolicyManager::sSpeakerMediaVolumeCurve[AudioPolicyManager::VOLCNT] = { 4742 {1, -56.0f}, {20, -34.0f}, {60, -11.0f}, {100, 0.0f} 4743}; 4744 4745const AudioPolicyManager::VolumeCurvePoint 4746 AudioPolicyManager::sSpeakerMediaVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 4747 {1, -55.0f}, {20, -43.0f}, {86, -12.0f}, {100, 0.0f} 4748}; 4749 4750const AudioPolicyManager::VolumeCurvePoint 4751 AudioPolicyManager::sSpeakerSonificationVolumeCurve[AudioPolicyManager::VOLCNT] = { 4752 {1, -29.7f}, {33, -20.1f}, {66, -10.2f}, {100, 0.0f} 4753}; 4754 4755const AudioPolicyManager::VolumeCurvePoint 4756 AudioPolicyManager::sSpeakerSonificationVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 4757 {1, -35.7f}, {33, -26.1f}, {66, -13.2f}, {100, 0.0f} 4758}; 4759 4760// AUDIO_STREAM_SYSTEM, AUDIO_STREAM_ENFORCED_AUDIBLE and AUDIO_STREAM_DTMF volume tracks 4761// AUDIO_STREAM_RING on phones and AUDIO_STREAM_MUSIC on tablets. 4762// AUDIO_STREAM_DTMF tracks AUDIO_STREAM_VOICE_CALL while in call (See AudioService.java). 4763// The range is constrained between -24dB and -6dB over speaker and -30dB and -18dB over headset. 4764 4765const AudioPolicyManager::VolumeCurvePoint 4766 AudioPolicyManager::sDefaultSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 4767 {1, -24.0f}, {33, -18.0f}, {66, -12.0f}, {100, -6.0f} 4768}; 4769 4770const AudioPolicyManager::VolumeCurvePoint 4771 AudioPolicyManager::sDefaultSystemVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 4772 {1, -34.0f}, {33, -24.0f}, {66, -15.0f}, {100, -6.0f} 4773}; 4774 4775const AudioPolicyManager::VolumeCurvePoint 4776 AudioPolicyManager::sHeadsetSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 4777 {1, -30.0f}, {33, -26.0f}, {66, -22.0f}, {100, -18.0f} 4778}; 4779 4780const AudioPolicyManager::VolumeCurvePoint 4781 AudioPolicyManager::sDefaultVoiceVolumeCurve[AudioPolicyManager::VOLCNT] = { 4782 {0, -42.0f}, {33, -28.0f}, {66, -14.0f}, {100, 0.0f} 4783}; 4784 4785const AudioPolicyManager::VolumeCurvePoint 4786 AudioPolicyManager::sSpeakerVoiceVolumeCurve[AudioPolicyManager::VOLCNT] = { 4787 {0, -24.0f}, {33, -16.0f}, {66, -8.0f}, {100, 0.0f} 4788}; 4789 4790const AudioPolicyManager::VolumeCurvePoint 4791 *AudioPolicyManager::sVolumeProfiles[AUDIO_STREAM_CNT] 4792 [AudioPolicyManager::DEVICE_CATEGORY_CNT] = { 4793 { // AUDIO_STREAM_VOICE_CALL 4794 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 4795 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4796 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_EARPIECE 4797 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 4798 }, 4799 { // AUDIO_STREAM_SYSTEM 4800 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 4801 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4802 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 4803 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 4804 }, 4805 { // AUDIO_STREAM_RING 4806 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 4807 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4808 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 4809 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 4810 }, 4811 { // AUDIO_STREAM_MUSIC 4812 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 4813 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4814 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EARPIECE 4815 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 4816 }, 4817 { // AUDIO_STREAM_ALARM 4818 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 4819 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4820 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 4821 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 4822 }, 4823 { // AUDIO_STREAM_NOTIFICATION 4824 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 4825 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4826 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 4827 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 4828 }, 4829 { // AUDIO_STREAM_BLUETOOTH_SCO 4830 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 4831 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4832 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_EARPIECE 4833 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 4834 }, 4835 { // AUDIO_STREAM_ENFORCED_AUDIBLE 4836 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 4837 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4838 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 4839 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 4840 }, 4841 { // AUDIO_STREAM_DTMF 4842 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 4843 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4844 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 4845 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 4846 }, 4847 { // AUDIO_STREAM_TTS 4848 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 4849 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4850 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EARPIECE 4851 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 4852 }, 4853}; 4854 4855void AudioPolicyManager::initializeVolumeCurves() 4856{ 4857 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 4858 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 4859 mStreams[i].mVolumeCurve[j] = 4860 sVolumeProfiles[i][j]; 4861 } 4862 } 4863 4864 // Check availability of DRC on speaker path: if available, override some of the speaker curves 4865 if (mSpeakerDrcEnabled) { 4866 mStreams[AUDIO_STREAM_SYSTEM].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 4867 sDefaultSystemVolumeCurveDrc; 4868 mStreams[AUDIO_STREAM_RING].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 4869 sSpeakerSonificationVolumeCurveDrc; 4870 mStreams[AUDIO_STREAM_ALARM].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 4871 sSpeakerSonificationVolumeCurveDrc; 4872 mStreams[AUDIO_STREAM_NOTIFICATION].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 4873 sSpeakerSonificationVolumeCurveDrc; 4874 mStreams[AUDIO_STREAM_MUSIC].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 4875 sSpeakerMediaVolumeCurveDrc; 4876 } 4877} 4878 4879float AudioPolicyManager::computeVolume(audio_stream_type_t stream, 4880 int index, 4881 audio_io_handle_t output, 4882 audio_devices_t device) 4883{ 4884 float volume = 1.0; 4885 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4886 StreamDescriptor &streamDesc = mStreams[stream]; 4887 4888 if (device == AUDIO_DEVICE_NONE) { 4889 device = outputDesc->device(); 4890 } 4891 4892 volume = volIndexToAmpl(device, streamDesc, index); 4893 4894 // if a headset is connected, apply the following rules to ring tones and notifications 4895 // to avoid sound level bursts in user's ears: 4896 // - always attenuate ring tones and notifications volume by 6dB 4897 // - if music is playing, always limit the volume to current music volume, 4898 // with a minimum threshold at -36dB so that notification is always perceived. 4899 const routing_strategy stream_strategy = getStrategy(stream); 4900 if ((device & (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP | 4901 AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES | 4902 AUDIO_DEVICE_OUT_WIRED_HEADSET | 4903 AUDIO_DEVICE_OUT_WIRED_HEADPHONE)) && 4904 ((stream_strategy == STRATEGY_SONIFICATION) 4905 || (stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL) 4906 || (stream == AUDIO_STREAM_SYSTEM) 4907 || ((stream_strategy == STRATEGY_ENFORCED_AUDIBLE) && 4908 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_NONE))) && 4909 streamDesc.mCanBeMuted) { 4910 volume *= SONIFICATION_HEADSET_VOLUME_FACTOR; 4911 // when the phone is ringing we must consider that music could have been paused just before 4912 // by the music application and behave as if music was active if the last music track was 4913 // just stopped 4914 if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY) || 4915 mLimitRingtoneVolume) { 4916 audio_devices_t musicDevice = getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/); 4917 float musicVol = computeVolume(AUDIO_STREAM_MUSIC, 4918 mStreams[AUDIO_STREAM_MUSIC].getVolumeIndex(musicDevice), 4919 output, 4920 musicDevice); 4921 float minVol = (musicVol > SONIFICATION_HEADSET_VOLUME_MIN) ? 4922 musicVol : SONIFICATION_HEADSET_VOLUME_MIN; 4923 if (volume > minVol) { 4924 volume = minVol; 4925 ALOGV("computeVolume limiting volume to %f musicVol %f", minVol, musicVol); 4926 } 4927 } 4928 } 4929 4930 return volume; 4931} 4932 4933status_t AudioPolicyManager::checkAndSetVolume(audio_stream_type_t stream, 4934 int index, 4935 audio_io_handle_t output, 4936 audio_devices_t device, 4937 int delayMs, 4938 bool force) 4939{ 4940 4941 // do not change actual stream volume if the stream is muted 4942 if (mOutputs.valueFor(output)->mMuteCount[stream] != 0) { 4943 ALOGVV("checkAndSetVolume() stream %d muted count %d", 4944 stream, mOutputs.valueFor(output)->mMuteCount[stream]); 4945 return NO_ERROR; 4946 } 4947 4948 // do not change in call volume if bluetooth is connected and vice versa 4949 if ((stream == AUDIO_STREAM_VOICE_CALL && 4950 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO) || 4951 (stream == AUDIO_STREAM_BLUETOOTH_SCO && 4952 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] != AUDIO_POLICY_FORCE_BT_SCO)) { 4953 ALOGV("checkAndSetVolume() cannot set stream %d volume with force use = %d for comm", 4954 stream, mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]); 4955 return INVALID_OPERATION; 4956 } 4957 4958 float volume = computeVolume(stream, index, output, device); 4959 // We actually change the volume if: 4960 // - the float value returned by computeVolume() changed 4961 // - the force flag is set 4962 if (volume != mOutputs.valueFor(output)->mCurVolume[stream] || 4963 force) { 4964 mOutputs.valueFor(output)->mCurVolume[stream] = volume; 4965 ALOGVV("checkAndSetVolume() for output %d stream %d, volume %f, delay %d", output, stream, volume, delayMs); 4966 // Force VOICE_CALL to track BLUETOOTH_SCO stream volume when bluetooth audio is 4967 // enabled 4968 if (stream == AUDIO_STREAM_BLUETOOTH_SCO) { 4969 mpClientInterface->setStreamVolume(AUDIO_STREAM_VOICE_CALL, volume, output, delayMs); 4970 } 4971 mpClientInterface->setStreamVolume(stream, volume, output, delayMs); 4972 } 4973 4974 if (stream == AUDIO_STREAM_VOICE_CALL || 4975 stream == AUDIO_STREAM_BLUETOOTH_SCO) { 4976 float voiceVolume; 4977 // Force voice volume to max for bluetooth SCO as volume is managed by the headset 4978 if (stream == AUDIO_STREAM_VOICE_CALL) { 4979 voiceVolume = (float)index/(float)mStreams[stream].mIndexMax; 4980 } else { 4981 voiceVolume = 1.0; 4982 } 4983 4984 if (voiceVolume != mLastVoiceVolume && output == mPrimaryOutput) { 4985 mpClientInterface->setVoiceVolume(voiceVolume, delayMs); 4986 mLastVoiceVolume = voiceVolume; 4987 } 4988 } 4989 4990 return NO_ERROR; 4991} 4992 4993void AudioPolicyManager::applyStreamVolumes(audio_io_handle_t output, 4994 audio_devices_t device, 4995 int delayMs, 4996 bool force) 4997{ 4998 ALOGVV("applyStreamVolumes() for output %d and device %x", output, device); 4999 5000 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 5001 checkAndSetVolume((audio_stream_type_t)stream, 5002 mStreams[stream].getVolumeIndex(device), 5003 output, 5004 device, 5005 delayMs, 5006 force); 5007 } 5008} 5009 5010void AudioPolicyManager::setStrategyMute(routing_strategy strategy, 5011 bool on, 5012 audio_io_handle_t output, 5013 int delayMs, 5014 audio_devices_t device) 5015{ 5016 ALOGVV("setStrategyMute() strategy %d, mute %d, output %d", strategy, on, output); 5017 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 5018 if (getStrategy((audio_stream_type_t)stream) == strategy) { 5019 setStreamMute((audio_stream_type_t)stream, on, output, delayMs, device); 5020 } 5021 } 5022} 5023 5024void AudioPolicyManager::setStreamMute(audio_stream_type_t stream, 5025 bool on, 5026 audio_io_handle_t output, 5027 int delayMs, 5028 audio_devices_t device) 5029{ 5030 StreamDescriptor &streamDesc = mStreams[stream]; 5031 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 5032 if (device == AUDIO_DEVICE_NONE) { 5033 device = outputDesc->device(); 5034 } 5035 5036 ALOGVV("setStreamMute() stream %d, mute %d, output %d, mMuteCount %d device %04x", 5037 stream, on, output, outputDesc->mMuteCount[stream], device); 5038 5039 if (on) { 5040 if (outputDesc->mMuteCount[stream] == 0) { 5041 if (streamDesc.mCanBeMuted && 5042 ((stream != AUDIO_STREAM_ENFORCED_AUDIBLE) || 5043 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_NONE))) { 5044 checkAndSetVolume(stream, 0, output, device, delayMs); 5045 } 5046 } 5047 // increment mMuteCount after calling checkAndSetVolume() so that volume change is not ignored 5048 outputDesc->mMuteCount[stream]++; 5049 } else { 5050 if (outputDesc->mMuteCount[stream] == 0) { 5051 ALOGV("setStreamMute() unmuting non muted stream!"); 5052 return; 5053 } 5054 if (--outputDesc->mMuteCount[stream] == 0) { 5055 checkAndSetVolume(stream, 5056 streamDesc.getVolumeIndex(device), 5057 output, 5058 device, 5059 delayMs); 5060 } 5061 } 5062} 5063 5064void AudioPolicyManager::handleIncallSonification(audio_stream_type_t stream, 5065 bool starting, bool stateChange) 5066{ 5067 // if the stream pertains to sonification strategy and we are in call we must 5068 // mute the stream if it is low visibility. If it is high visibility, we must play a tone 5069 // in the device used for phone strategy and play the tone if the selected device does not 5070 // interfere with the device used for phone strategy 5071 // if stateChange is true, we are called from setPhoneState() and we must mute or unmute as 5072 // many times as there are active tracks on the output 5073 const routing_strategy stream_strategy = getStrategy(stream); 5074 if ((stream_strategy == STRATEGY_SONIFICATION) || 5075 ((stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL))) { 5076 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 5077 ALOGV("handleIncallSonification() stream %d starting %d device %x stateChange %d", 5078 stream, starting, outputDesc->mDevice, stateChange); 5079 if (outputDesc->mRefCount[stream]) { 5080 int muteCount = 1; 5081 if (stateChange) { 5082 muteCount = outputDesc->mRefCount[stream]; 5083 } 5084 if (audio_is_low_visibility(stream)) { 5085 ALOGV("handleIncallSonification() low visibility, muteCount %d", muteCount); 5086 for (int i = 0; i < muteCount; i++) { 5087 setStreamMute(stream, starting, mPrimaryOutput); 5088 } 5089 } else { 5090 ALOGV("handleIncallSonification() high visibility"); 5091 if (outputDesc->device() & 5092 getDeviceForStrategy(STRATEGY_PHONE, true /*fromCache*/)) { 5093 ALOGV("handleIncallSonification() high visibility muted, muteCount %d", muteCount); 5094 for (int i = 0; i < muteCount; i++) { 5095 setStreamMute(stream, starting, mPrimaryOutput); 5096 } 5097 } 5098 if (starting) { 5099 mpClientInterface->startTone(AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION, 5100 AUDIO_STREAM_VOICE_CALL); 5101 } else { 5102 mpClientInterface->stopTone(); 5103 } 5104 } 5105 } 5106 } 5107} 5108 5109bool AudioPolicyManager::isInCall() 5110{ 5111 return isStateInCall(mPhoneState); 5112} 5113 5114bool AudioPolicyManager::isStateInCall(int state) { 5115 return ((state == AUDIO_MODE_IN_CALL) || 5116 (state == AUDIO_MODE_IN_COMMUNICATION)); 5117} 5118 5119uint32_t AudioPolicyManager::getMaxEffectsCpuLoad() 5120{ 5121 return MAX_EFFECTS_CPU_LOAD; 5122} 5123 5124uint32_t AudioPolicyManager::getMaxEffectsMemory() 5125{ 5126 return MAX_EFFECTS_MEMORY; 5127} 5128 5129 5130// --- AudioOutputDescriptor class implementation 5131 5132AudioPolicyManager::AudioOutputDescriptor::AudioOutputDescriptor( 5133 const sp<IOProfile>& profile) 5134 : mId(0), mIoHandle(0), mLatency(0), 5135 mFlags((audio_output_flags_t)0), mDevice(AUDIO_DEVICE_NONE), mPatchHandle(0), 5136 mOutput1(0), mOutput2(0), mProfile(profile), mDirectOpenCount(0) 5137{ 5138 // clear usage count for all stream types 5139 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 5140 mRefCount[i] = 0; 5141 mCurVolume[i] = -1.0; 5142 mMuteCount[i] = 0; 5143 mStopTime[i] = 0; 5144 } 5145 for (int i = 0; i < NUM_STRATEGIES; i++) { 5146 mStrategyMutedByDevice[i] = false; 5147 } 5148 if (profile != NULL) { 5149 mFlags = profile->mFlags; 5150 mSamplingRate = profile->pickSamplingRate(); 5151 mFormat = profile->pickFormat(); 5152 mChannelMask = profile->pickChannelMask(); 5153 if (profile->mGains.size() > 0) { 5154 profile->mGains[0]->getDefaultConfig(&mGain); 5155 } 5156 } 5157} 5158 5159audio_devices_t AudioPolicyManager::AudioOutputDescriptor::device() const 5160{ 5161 if (isDuplicated()) { 5162 return (audio_devices_t)(mOutput1->mDevice | mOutput2->mDevice); 5163 } else { 5164 return mDevice; 5165 } 5166} 5167 5168uint32_t AudioPolicyManager::AudioOutputDescriptor::latency() 5169{ 5170 if (isDuplicated()) { 5171 return (mOutput1->mLatency > mOutput2->mLatency) ? mOutput1->mLatency : mOutput2->mLatency; 5172 } else { 5173 return mLatency; 5174 } 5175} 5176 5177bool AudioPolicyManager::AudioOutputDescriptor::sharesHwModuleWith( 5178 const sp<AudioOutputDescriptor> outputDesc) 5179{ 5180 if (isDuplicated()) { 5181 return mOutput1->sharesHwModuleWith(outputDesc) || mOutput2->sharesHwModuleWith(outputDesc); 5182 } else if (outputDesc->isDuplicated()){ 5183 return sharesHwModuleWith(outputDesc->mOutput1) || sharesHwModuleWith(outputDesc->mOutput2); 5184 } else { 5185 return (mProfile->mModule == outputDesc->mProfile->mModule); 5186 } 5187} 5188 5189void AudioPolicyManager::AudioOutputDescriptor::changeRefCount(audio_stream_type_t stream, 5190 int delta) 5191{ 5192 // forward usage count change to attached outputs 5193 if (isDuplicated()) { 5194 mOutput1->changeRefCount(stream, delta); 5195 mOutput2->changeRefCount(stream, delta); 5196 } 5197 if ((delta + (int)mRefCount[stream]) < 0) { 5198 ALOGW("changeRefCount() invalid delta %d for stream %d, refCount %d", 5199 delta, stream, mRefCount[stream]); 5200 mRefCount[stream] = 0; 5201 return; 5202 } 5203 mRefCount[stream] += delta; 5204 ALOGV("changeRefCount() stream %d, count %d", stream, mRefCount[stream]); 5205} 5206 5207audio_devices_t AudioPolicyManager::AudioOutputDescriptor::supportedDevices() 5208{ 5209 if (isDuplicated()) { 5210 return (audio_devices_t)(mOutput1->supportedDevices() | mOutput2->supportedDevices()); 5211 } else { 5212 return mProfile->mSupportedDevices.types() ; 5213 } 5214} 5215 5216bool AudioPolicyManager::AudioOutputDescriptor::isActive(uint32_t inPastMs) const 5217{ 5218 return isStrategyActive(NUM_STRATEGIES, inPastMs); 5219} 5220 5221bool AudioPolicyManager::AudioOutputDescriptor::isStrategyActive(routing_strategy strategy, 5222 uint32_t inPastMs, 5223 nsecs_t sysTime) const 5224{ 5225 if ((sysTime == 0) && (inPastMs != 0)) { 5226 sysTime = systemTime(); 5227 } 5228 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 5229 if (((getStrategy((audio_stream_type_t)i) == strategy) || 5230 (NUM_STRATEGIES == strategy)) && 5231 isStreamActive((audio_stream_type_t)i, inPastMs, sysTime)) { 5232 return true; 5233 } 5234 } 5235 return false; 5236} 5237 5238bool AudioPolicyManager::AudioOutputDescriptor::isStreamActive(audio_stream_type_t stream, 5239 uint32_t inPastMs, 5240 nsecs_t sysTime) const 5241{ 5242 if (mRefCount[stream] != 0) { 5243 return true; 5244 } 5245 if (inPastMs == 0) { 5246 return false; 5247 } 5248 if (sysTime == 0) { 5249 sysTime = systemTime(); 5250 } 5251 if (ns2ms(sysTime - mStopTime[stream]) < inPastMs) { 5252 return true; 5253 } 5254 return false; 5255} 5256 5257void AudioPolicyManager::AudioOutputDescriptor::toAudioPortConfig( 5258 struct audio_port_config *dstConfig, 5259 const struct audio_port_config *srcConfig) const 5260{ 5261 ALOG_ASSERT(!isDuplicated(), "toAudioPortConfig() called on duplicated output %d", mIoHandle); 5262 5263 dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK| 5264 AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN; 5265 if (srcConfig != NULL) { 5266 dstConfig->config_mask |= srcConfig->config_mask; 5267 } 5268 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 5269 5270 dstConfig->id = mId; 5271 dstConfig->role = AUDIO_PORT_ROLE_SOURCE; 5272 dstConfig->type = AUDIO_PORT_TYPE_MIX; 5273 dstConfig->ext.mix.hw_module = mProfile->mModule->mHandle; 5274 dstConfig->ext.mix.handle = mIoHandle; 5275 dstConfig->ext.mix.usecase.stream = AUDIO_STREAM_DEFAULT; 5276} 5277 5278void AudioPolicyManager::AudioOutputDescriptor::toAudioPort( 5279 struct audio_port *port) const 5280{ 5281 ALOG_ASSERT(!isDuplicated(), "toAudioPort() called on duplicated output %d", mIoHandle); 5282 mProfile->toAudioPort(port); 5283 port->id = mId; 5284 toAudioPortConfig(&port->active_config); 5285 port->ext.mix.hw_module = mProfile->mModule->mHandle; 5286 port->ext.mix.handle = mIoHandle; 5287 port->ext.mix.latency_class = 5288 mFlags & AUDIO_OUTPUT_FLAG_FAST ? AUDIO_LATENCY_LOW : AUDIO_LATENCY_NORMAL; 5289} 5290 5291status_t AudioPolicyManager::AudioOutputDescriptor::dump(int fd) 5292{ 5293 const size_t SIZE = 256; 5294 char buffer[SIZE]; 5295 String8 result; 5296 5297 snprintf(buffer, SIZE, " ID: %d\n", mId); 5298 result.append(buffer); 5299 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 5300 result.append(buffer); 5301 snprintf(buffer, SIZE, " Format: %08x\n", mFormat); 5302 result.append(buffer); 5303 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 5304 result.append(buffer); 5305 snprintf(buffer, SIZE, " Latency: %d\n", mLatency); 5306 result.append(buffer); 5307 snprintf(buffer, SIZE, " Flags %08x\n", mFlags); 5308 result.append(buffer); 5309 snprintf(buffer, SIZE, " Devices %08x\n", device()); 5310 result.append(buffer); 5311 snprintf(buffer, SIZE, " Stream volume refCount muteCount\n"); 5312 result.append(buffer); 5313 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 5314 snprintf(buffer, SIZE, " %02d %.03f %02d %02d\n", 5315 i, mCurVolume[i], mRefCount[i], mMuteCount[i]); 5316 result.append(buffer); 5317 } 5318 write(fd, result.string(), result.size()); 5319 5320 return NO_ERROR; 5321} 5322 5323// --- AudioInputDescriptor class implementation 5324 5325AudioPolicyManager::AudioInputDescriptor::AudioInputDescriptor(const sp<IOProfile>& profile) 5326 : mId(0), mIoHandle(0), 5327 mDevice(AUDIO_DEVICE_NONE), mPatchHandle(0), mRefCount(0), 5328 mInputSource(AUDIO_SOURCE_DEFAULT), mProfile(profile), mIsSoundTrigger(false) 5329{ 5330 if (profile != NULL) { 5331 mSamplingRate = profile->pickSamplingRate(); 5332 mFormat = profile->pickFormat(); 5333 mChannelMask = profile->pickChannelMask(); 5334 if (profile->mGains.size() > 0) { 5335 profile->mGains[0]->getDefaultConfig(&mGain); 5336 } 5337 } 5338} 5339 5340void AudioPolicyManager::AudioInputDescriptor::toAudioPortConfig( 5341 struct audio_port_config *dstConfig, 5342 const struct audio_port_config *srcConfig) const 5343{ 5344 ALOG_ASSERT(mProfile != 0, 5345 "toAudioPortConfig() called on input with null profile %d", mIoHandle); 5346 dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK| 5347 AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN; 5348 if (srcConfig != NULL) { 5349 dstConfig->config_mask |= srcConfig->config_mask; 5350 } 5351 5352 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 5353 5354 dstConfig->id = mId; 5355 dstConfig->role = AUDIO_PORT_ROLE_SINK; 5356 dstConfig->type = AUDIO_PORT_TYPE_MIX; 5357 dstConfig->ext.mix.hw_module = mProfile->mModule->mHandle; 5358 dstConfig->ext.mix.handle = mIoHandle; 5359 dstConfig->ext.mix.usecase.source = mInputSource; 5360} 5361 5362void AudioPolicyManager::AudioInputDescriptor::toAudioPort( 5363 struct audio_port *port) const 5364{ 5365 ALOG_ASSERT(mProfile != 0, "toAudioPort() called on input with null profile %d", mIoHandle); 5366 5367 mProfile->toAudioPort(port); 5368 port->id = mId; 5369 toAudioPortConfig(&port->active_config); 5370 port->ext.mix.hw_module = mProfile->mModule->mHandle; 5371 port->ext.mix.handle = mIoHandle; 5372 port->ext.mix.latency_class = AUDIO_LATENCY_NORMAL; 5373} 5374 5375status_t AudioPolicyManager::AudioInputDescriptor::dump(int fd) 5376{ 5377 const size_t SIZE = 256; 5378 char buffer[SIZE]; 5379 String8 result; 5380 5381 snprintf(buffer, SIZE, " ID: %d\n", mId); 5382 result.append(buffer); 5383 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 5384 result.append(buffer); 5385 snprintf(buffer, SIZE, " Format: %d\n", mFormat); 5386 result.append(buffer); 5387 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 5388 result.append(buffer); 5389 snprintf(buffer, SIZE, " Devices %08x\n", mDevice); 5390 result.append(buffer); 5391 snprintf(buffer, SIZE, " Ref Count %d\n", mRefCount); 5392 result.append(buffer); 5393 snprintf(buffer, SIZE, " Open Ref Count %d\n", mOpenRefCount); 5394 result.append(buffer); 5395 5396 write(fd, result.string(), result.size()); 5397 5398 return NO_ERROR; 5399} 5400 5401// --- StreamDescriptor class implementation 5402 5403AudioPolicyManager::StreamDescriptor::StreamDescriptor() 5404 : mIndexMin(0), mIndexMax(1), mCanBeMuted(true) 5405{ 5406 mIndexCur.add(AUDIO_DEVICE_OUT_DEFAULT, 0); 5407} 5408 5409int AudioPolicyManager::StreamDescriptor::getVolumeIndex(audio_devices_t device) 5410{ 5411 device = AudioPolicyManager::getDeviceForVolume(device); 5412 // there is always a valid entry for AUDIO_DEVICE_OUT_DEFAULT 5413 if (mIndexCur.indexOfKey(device) < 0) { 5414 device = AUDIO_DEVICE_OUT_DEFAULT; 5415 } 5416 return mIndexCur.valueFor(device); 5417} 5418 5419void AudioPolicyManager::StreamDescriptor::dump(int fd) 5420{ 5421 const size_t SIZE = 256; 5422 char buffer[SIZE]; 5423 String8 result; 5424 5425 snprintf(buffer, SIZE, "%s %02d %02d ", 5426 mCanBeMuted ? "true " : "false", mIndexMin, mIndexMax); 5427 result.append(buffer); 5428 for (size_t i = 0; i < mIndexCur.size(); i++) { 5429 snprintf(buffer, SIZE, "%04x : %02d, ", 5430 mIndexCur.keyAt(i), 5431 mIndexCur.valueAt(i)); 5432 result.append(buffer); 5433 } 5434 result.append("\n"); 5435 5436 write(fd, result.string(), result.size()); 5437} 5438 5439// --- EffectDescriptor class implementation 5440 5441status_t AudioPolicyManager::EffectDescriptor::dump(int fd) 5442{ 5443 const size_t SIZE = 256; 5444 char buffer[SIZE]; 5445 String8 result; 5446 5447 snprintf(buffer, SIZE, " I/O: %d\n", mIo); 5448 result.append(buffer); 5449 snprintf(buffer, SIZE, " Strategy: %d\n", mStrategy); 5450 result.append(buffer); 5451 snprintf(buffer, SIZE, " Session: %d\n", mSession); 5452 result.append(buffer); 5453 snprintf(buffer, SIZE, " Name: %s\n", mDesc.name); 5454 result.append(buffer); 5455 snprintf(buffer, SIZE, " %s\n", mEnabled ? "Enabled" : "Disabled"); 5456 result.append(buffer); 5457 write(fd, result.string(), result.size()); 5458 5459 return NO_ERROR; 5460} 5461 5462// --- HwModule class implementation 5463 5464AudioPolicyManager::HwModule::HwModule(const char *name) 5465 : mName(strndup(name, AUDIO_HARDWARE_MODULE_ID_MAX_LEN)), 5466 mHalVersion(AUDIO_DEVICE_API_VERSION_MIN), mHandle(0) 5467{ 5468} 5469 5470AudioPolicyManager::HwModule::~HwModule() 5471{ 5472 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 5473 mOutputProfiles[i]->mSupportedDevices.clear(); 5474 } 5475 for (size_t i = 0; i < mInputProfiles.size(); i++) { 5476 mInputProfiles[i]->mSupportedDevices.clear(); 5477 } 5478 free((void *)mName); 5479} 5480 5481status_t AudioPolicyManager::HwModule::loadInput(cnode *root) 5482{ 5483 cnode *node = root->first_child; 5484 5485 sp<IOProfile> profile = new IOProfile(String8(root->name), AUDIO_PORT_ROLE_SINK, this); 5486 5487 while (node) { 5488 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) { 5489 profile->loadSamplingRates((char *)node->value); 5490 } else if (strcmp(node->name, FORMATS_TAG) == 0) { 5491 profile->loadFormats((char *)node->value); 5492 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 5493 profile->loadInChannels((char *)node->value); 5494 } else if (strcmp(node->name, DEVICES_TAG) == 0) { 5495 profile->mSupportedDevices.loadDevicesFromName((char *)node->value, 5496 mDeclaredDevices); 5497 } else if (strcmp(node->name, GAINS_TAG) == 0) { 5498 profile->loadGains(node); 5499 } 5500 node = node->next; 5501 } 5502 ALOGW_IF(profile->mSupportedDevices.isEmpty(), 5503 "loadInput() invalid supported devices"); 5504 ALOGW_IF(profile->mChannelMasks.size() == 0, 5505 "loadInput() invalid supported channel masks"); 5506 ALOGW_IF(profile->mSamplingRates.size() == 0, 5507 "loadInput() invalid supported sampling rates"); 5508 ALOGW_IF(profile->mFormats.size() == 0, 5509 "loadInput() invalid supported formats"); 5510 if (!profile->mSupportedDevices.isEmpty() && 5511 (profile->mChannelMasks.size() != 0) && 5512 (profile->mSamplingRates.size() != 0) && 5513 (profile->mFormats.size() != 0)) { 5514 5515 ALOGV("loadInput() adding input Supported Devices %04x", 5516 profile->mSupportedDevices.types()); 5517 5518 mInputProfiles.add(profile); 5519 return NO_ERROR; 5520 } else { 5521 return BAD_VALUE; 5522 } 5523} 5524 5525status_t AudioPolicyManager::HwModule::loadOutput(cnode *root) 5526{ 5527 cnode *node = root->first_child; 5528 5529 sp<IOProfile> profile = new IOProfile(String8(root->name), AUDIO_PORT_ROLE_SOURCE, this); 5530 5531 while (node) { 5532 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) { 5533 profile->loadSamplingRates((char *)node->value); 5534 } else if (strcmp(node->name, FORMATS_TAG) == 0) { 5535 profile->loadFormats((char *)node->value); 5536 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 5537 profile->loadOutChannels((char *)node->value); 5538 } else if (strcmp(node->name, DEVICES_TAG) == 0) { 5539 profile->mSupportedDevices.loadDevicesFromName((char *)node->value, 5540 mDeclaredDevices); 5541 } else if (strcmp(node->name, FLAGS_TAG) == 0) { 5542 profile->mFlags = parseFlagNames((char *)node->value); 5543 } else if (strcmp(node->name, GAINS_TAG) == 0) { 5544 profile->loadGains(node); 5545 } 5546 node = node->next; 5547 } 5548 ALOGW_IF(profile->mSupportedDevices.isEmpty(), 5549 "loadOutput() invalid supported devices"); 5550 ALOGW_IF(profile->mChannelMasks.size() == 0, 5551 "loadOutput() invalid supported channel masks"); 5552 ALOGW_IF(profile->mSamplingRates.size() == 0, 5553 "loadOutput() invalid supported sampling rates"); 5554 ALOGW_IF(profile->mFormats.size() == 0, 5555 "loadOutput() invalid supported formats"); 5556 if (!profile->mSupportedDevices.isEmpty() && 5557 (profile->mChannelMasks.size() != 0) && 5558 (profile->mSamplingRates.size() != 0) && 5559 (profile->mFormats.size() != 0)) { 5560 5561 ALOGV("loadOutput() adding output Supported Devices %04x, mFlags %04x", 5562 profile->mSupportedDevices.types(), profile->mFlags); 5563 5564 mOutputProfiles.add(profile); 5565 return NO_ERROR; 5566 } else { 5567 return BAD_VALUE; 5568 } 5569} 5570 5571status_t AudioPolicyManager::HwModule::loadDevice(cnode *root) 5572{ 5573 cnode *node = root->first_child; 5574 5575 audio_devices_t type = AUDIO_DEVICE_NONE; 5576 while (node) { 5577 if (strcmp(node->name, DEVICE_TYPE) == 0) { 5578 type = parseDeviceNames((char *)node->value); 5579 break; 5580 } 5581 node = node->next; 5582 } 5583 if (type == AUDIO_DEVICE_NONE || 5584 (!audio_is_input_device(type) && !audio_is_output_device(type))) { 5585 ALOGW("loadDevice() bad type %08x", type); 5586 return BAD_VALUE; 5587 } 5588 sp<DeviceDescriptor> deviceDesc = new DeviceDescriptor(String8(root->name), type); 5589 deviceDesc->mModule = this; 5590 5591 node = root->first_child; 5592 while (node) { 5593 if (strcmp(node->name, DEVICE_ADDRESS) == 0) { 5594 deviceDesc->mAddress = String8((char *)node->value); 5595 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 5596 if (audio_is_input_device(type)) { 5597 deviceDesc->loadInChannels((char *)node->value); 5598 } else { 5599 deviceDesc->loadOutChannels((char *)node->value); 5600 } 5601 } else if (strcmp(node->name, GAINS_TAG) == 0) { 5602 deviceDesc->loadGains(node); 5603 } 5604 node = node->next; 5605 } 5606 5607 ALOGV("loadDevice() adding device name %s type %08x address %s", 5608 deviceDesc->mName.string(), type, deviceDesc->mAddress.string()); 5609 5610 mDeclaredDevices.add(deviceDesc); 5611 5612 return NO_ERROR; 5613} 5614 5615void AudioPolicyManager::HwModule::dump(int fd) 5616{ 5617 const size_t SIZE = 256; 5618 char buffer[SIZE]; 5619 String8 result; 5620 5621 snprintf(buffer, SIZE, " - name: %s\n", mName); 5622 result.append(buffer); 5623 snprintf(buffer, SIZE, " - handle: %d\n", mHandle); 5624 result.append(buffer); 5625 snprintf(buffer, SIZE, " - version: %u.%u\n", mHalVersion >> 8, mHalVersion & 0xFF); 5626 result.append(buffer); 5627 write(fd, result.string(), result.size()); 5628 if (mOutputProfiles.size()) { 5629 write(fd, " - outputs:\n", strlen(" - outputs:\n")); 5630 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 5631 snprintf(buffer, SIZE, " output %zu:\n", i); 5632 write(fd, buffer, strlen(buffer)); 5633 mOutputProfiles[i]->dump(fd); 5634 } 5635 } 5636 if (mInputProfiles.size()) { 5637 write(fd, " - inputs:\n", strlen(" - inputs:\n")); 5638 for (size_t i = 0; i < mInputProfiles.size(); i++) { 5639 snprintf(buffer, SIZE, " input %zu:\n", i); 5640 write(fd, buffer, strlen(buffer)); 5641 mInputProfiles[i]->dump(fd); 5642 } 5643 } 5644 if (mDeclaredDevices.size()) { 5645 write(fd, " - devices:\n", strlen(" - devices:\n")); 5646 for (size_t i = 0; i < mDeclaredDevices.size(); i++) { 5647 mDeclaredDevices[i]->dump(fd, 4, i); 5648 } 5649 } 5650} 5651 5652// --- AudioPort class implementation 5653 5654 5655AudioPolicyManager::AudioPort::AudioPort(const String8& name, audio_port_type_t type, 5656 audio_port_role_t role, const sp<HwModule>& module) : 5657 mName(name), mType(type), mRole(role), mModule(module), mFlags((audio_output_flags_t)0) 5658{ 5659 mUseInChannelMask = ((type == AUDIO_PORT_TYPE_DEVICE) && (role == AUDIO_PORT_ROLE_SOURCE)) || 5660 ((type == AUDIO_PORT_TYPE_MIX) && (role == AUDIO_PORT_ROLE_SINK)); 5661} 5662 5663void AudioPolicyManager::AudioPort::toAudioPort(struct audio_port *port) const 5664{ 5665 port->role = mRole; 5666 port->type = mType; 5667 unsigned int i; 5668 for (i = 0; i < mSamplingRates.size() && i < AUDIO_PORT_MAX_SAMPLING_RATES; i++) { 5669 if (mSamplingRates[i] != 0) { 5670 port->sample_rates[i] = mSamplingRates[i]; 5671 } 5672 } 5673 port->num_sample_rates = i; 5674 for (i = 0; i < mChannelMasks.size() && i < AUDIO_PORT_MAX_CHANNEL_MASKS; i++) { 5675 if (mChannelMasks[i] != 0) { 5676 port->channel_masks[i] = mChannelMasks[i]; 5677 } 5678 } 5679 port->num_channel_masks = i; 5680 for (i = 0; i < mFormats.size() && i < AUDIO_PORT_MAX_FORMATS; i++) { 5681 if (mFormats[i] != 0) { 5682 port->formats[i] = mFormats[i]; 5683 } 5684 } 5685 port->num_formats = i; 5686 5687 ALOGV("AudioPort::toAudioPort() num gains %zu", mGains.size()); 5688 5689 for (i = 0; i < mGains.size() && i < AUDIO_PORT_MAX_GAINS; i++) { 5690 port->gains[i] = mGains[i]->mGain; 5691 } 5692 port->num_gains = i; 5693} 5694 5695void AudioPolicyManager::AudioPort::importAudioPort(const sp<AudioPort> port) { 5696 for (size_t k = 0 ; k < port->mSamplingRates.size() ; k++) { 5697 const uint32_t rate = port->mSamplingRates.itemAt(k); 5698 if (rate != 0) { // skip "dynamic" rates 5699 bool hasRate = false; 5700 for (size_t l = 0 ; l < mSamplingRates.size() ; l++) { 5701 if (rate == mSamplingRates.itemAt(l)) { 5702 hasRate = true; 5703 break; 5704 } 5705 } 5706 if (!hasRate) { // never import a sampling rate twice 5707 mSamplingRates.add(rate); 5708 } 5709 } 5710 } 5711 for (size_t k = 0 ; k < port->mChannelMasks.size() ; k++) { 5712 const audio_channel_mask_t mask = port->mChannelMasks.itemAt(k); 5713 if (mask != 0) { // skip "dynamic" masks 5714 bool hasMask = false; 5715 for (size_t l = 0 ; l < mChannelMasks.size() ; l++) { 5716 if (mask == mChannelMasks.itemAt(l)) { 5717 hasMask = true; 5718 break; 5719 } 5720 } 5721 if (!hasMask) { // never import a channel mask twice 5722 mChannelMasks.add(mask); 5723 } 5724 } 5725 } 5726 for (size_t k = 0 ; k < port->mFormats.size() ; k++) { 5727 const audio_format_t format = port->mFormats.itemAt(k); 5728 if (format != 0) { // skip "dynamic" formats 5729 bool hasFormat = false; 5730 for (size_t l = 0 ; l < mFormats.size() ; l++) { 5731 if (format == mFormats.itemAt(l)) { 5732 hasFormat = true; 5733 break; 5734 } 5735 } 5736 if (!hasFormat) { // never import a channel mask twice 5737 mFormats.add(format); 5738 } 5739 } 5740 } 5741} 5742 5743void AudioPolicyManager::AudioPort::clearCapabilities() { 5744 mChannelMasks.clear(); 5745 mFormats.clear(); 5746 mSamplingRates.clear(); 5747} 5748 5749void AudioPolicyManager::AudioPort::loadSamplingRates(char *name) 5750{ 5751 char *str = strtok(name, "|"); 5752 5753 // by convention, "0' in the first entry in mSamplingRates indicates the supported sampling 5754 // rates should be read from the output stream after it is opened for the first time 5755 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 5756 mSamplingRates.add(0); 5757 return; 5758 } 5759 5760 while (str != NULL) { 5761 uint32_t rate = atoi(str); 5762 if (rate != 0) { 5763 ALOGV("loadSamplingRates() adding rate %d", rate); 5764 mSamplingRates.add(rate); 5765 } 5766 str = strtok(NULL, "|"); 5767 } 5768} 5769 5770void AudioPolicyManager::AudioPort::loadFormats(char *name) 5771{ 5772 char *str = strtok(name, "|"); 5773 5774 // by convention, "0' in the first entry in mFormats indicates the supported formats 5775 // should be read from the output stream after it is opened for the first time 5776 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 5777 mFormats.add(AUDIO_FORMAT_DEFAULT); 5778 return; 5779 } 5780 5781 while (str != NULL) { 5782 audio_format_t format = (audio_format_t)stringToEnum(sFormatNameToEnumTable, 5783 ARRAY_SIZE(sFormatNameToEnumTable), 5784 str); 5785 if (format != AUDIO_FORMAT_DEFAULT) { 5786 mFormats.add(format); 5787 } 5788 str = strtok(NULL, "|"); 5789 } 5790} 5791 5792void AudioPolicyManager::AudioPort::loadInChannels(char *name) 5793{ 5794 const char *str = strtok(name, "|"); 5795 5796 ALOGV("loadInChannels() %s", name); 5797 5798 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 5799 mChannelMasks.add(0); 5800 return; 5801 } 5802 5803 while (str != NULL) { 5804 audio_channel_mask_t channelMask = 5805 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable, 5806 ARRAY_SIZE(sInChannelsNameToEnumTable), 5807 str); 5808 if (channelMask != 0) { 5809 ALOGV("loadInChannels() adding channelMask %04x", channelMask); 5810 mChannelMasks.add(channelMask); 5811 } 5812 str = strtok(NULL, "|"); 5813 } 5814} 5815 5816void AudioPolicyManager::AudioPort::loadOutChannels(char *name) 5817{ 5818 const char *str = strtok(name, "|"); 5819 5820 ALOGV("loadOutChannels() %s", name); 5821 5822 // by convention, "0' in the first entry in mChannelMasks indicates the supported channel 5823 // masks should be read from the output stream after it is opened for the first time 5824 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 5825 mChannelMasks.add(0); 5826 return; 5827 } 5828 5829 while (str != NULL) { 5830 audio_channel_mask_t channelMask = 5831 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable, 5832 ARRAY_SIZE(sOutChannelsNameToEnumTable), 5833 str); 5834 if (channelMask != 0) { 5835 mChannelMasks.add(channelMask); 5836 } 5837 str = strtok(NULL, "|"); 5838 } 5839 return; 5840} 5841 5842audio_gain_mode_t AudioPolicyManager::AudioPort::loadGainMode(char *name) 5843{ 5844 const char *str = strtok(name, "|"); 5845 5846 ALOGV("loadGainMode() %s", name); 5847 audio_gain_mode_t mode = 0; 5848 while (str != NULL) { 5849 mode |= (audio_gain_mode_t)stringToEnum(sGainModeNameToEnumTable, 5850 ARRAY_SIZE(sGainModeNameToEnumTable), 5851 str); 5852 str = strtok(NULL, "|"); 5853 } 5854 return mode; 5855} 5856 5857void AudioPolicyManager::AudioPort::loadGain(cnode *root, int index) 5858{ 5859 cnode *node = root->first_child; 5860 5861 sp<AudioGain> gain = new AudioGain(index, mUseInChannelMask); 5862 5863 while (node) { 5864 if (strcmp(node->name, GAIN_MODE) == 0) { 5865 gain->mGain.mode = loadGainMode((char *)node->value); 5866 } else if (strcmp(node->name, GAIN_CHANNELS) == 0) { 5867 if (mUseInChannelMask) { 5868 gain->mGain.channel_mask = 5869 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable, 5870 ARRAY_SIZE(sInChannelsNameToEnumTable), 5871 (char *)node->value); 5872 } else { 5873 gain->mGain.channel_mask = 5874 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable, 5875 ARRAY_SIZE(sOutChannelsNameToEnumTable), 5876 (char *)node->value); 5877 } 5878 } else if (strcmp(node->name, GAIN_MIN_VALUE) == 0) { 5879 gain->mGain.min_value = atoi((char *)node->value); 5880 } else if (strcmp(node->name, GAIN_MAX_VALUE) == 0) { 5881 gain->mGain.max_value = atoi((char *)node->value); 5882 } else if (strcmp(node->name, GAIN_DEFAULT_VALUE) == 0) { 5883 gain->mGain.default_value = atoi((char *)node->value); 5884 } else if (strcmp(node->name, GAIN_STEP_VALUE) == 0) { 5885 gain->mGain.step_value = atoi((char *)node->value); 5886 } else if (strcmp(node->name, GAIN_MIN_RAMP_MS) == 0) { 5887 gain->mGain.min_ramp_ms = atoi((char *)node->value); 5888 } else if (strcmp(node->name, GAIN_MAX_RAMP_MS) == 0) { 5889 gain->mGain.max_ramp_ms = atoi((char *)node->value); 5890 } 5891 node = node->next; 5892 } 5893 5894 ALOGV("loadGain() adding new gain mode %08x channel mask %08x min mB %d max mB %d", 5895 gain->mGain.mode, gain->mGain.channel_mask, gain->mGain.min_value, gain->mGain.max_value); 5896 5897 if (gain->mGain.mode == 0) { 5898 return; 5899 } 5900 mGains.add(gain); 5901} 5902 5903void AudioPolicyManager::AudioPort::loadGains(cnode *root) 5904{ 5905 cnode *node = root->first_child; 5906 int index = 0; 5907 while (node) { 5908 ALOGV("loadGains() loading gain %s", node->name); 5909 loadGain(node, index++); 5910 node = node->next; 5911 } 5912} 5913 5914status_t AudioPolicyManager::AudioPort::checkExactSamplingRate(uint32_t samplingRate) const 5915{ 5916 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 5917 if (mSamplingRates[i] == samplingRate) { 5918 return NO_ERROR; 5919 } 5920 } 5921 return BAD_VALUE; 5922} 5923 5924status_t AudioPolicyManager::AudioPort::checkCompatibleSamplingRate(uint32_t samplingRate, 5925 uint32_t *updatedSamplingRate) const 5926{ 5927 // Search for the closest supported sampling rate that is above (preferred) 5928 // or below (acceptable) the desired sampling rate, within a permitted ratio. 5929 // The sampling rates do not need to be sorted in ascending order. 5930 ssize_t maxBelow = -1; 5931 ssize_t minAbove = -1; 5932 uint32_t candidate; 5933 for (size_t i = 0; i < mSamplingRates.size(); i++) { 5934 candidate = mSamplingRates[i]; 5935 if (candidate == samplingRate) { 5936 if (updatedSamplingRate != NULL) { 5937 *updatedSamplingRate = candidate; 5938 } 5939 return NO_ERROR; 5940 } 5941 // candidate < desired 5942 if (candidate < samplingRate) { 5943 if (maxBelow < 0 || candidate > mSamplingRates[maxBelow]) { 5944 maxBelow = i; 5945 } 5946 // candidate > desired 5947 } else { 5948 if (minAbove < 0 || candidate < mSamplingRates[minAbove]) { 5949 minAbove = i; 5950 } 5951 } 5952 } 5953 // This uses hard-coded knowledge about AudioFlinger resampling ratios. 5954 // TODO Move these assumptions out. 5955 static const uint32_t kMaxDownSampleRatio = 6; // beyond this aliasing occurs 5956 static const uint32_t kMaxUpSampleRatio = 256; // beyond this sample rate inaccuracies occur 5957 // due to approximation by an int32_t of the 5958 // phase increments 5959 // Prefer to down-sample from a higher sampling rate, as we get the desired frequency spectrum. 5960 if (minAbove >= 0) { 5961 candidate = mSamplingRates[minAbove]; 5962 if (candidate / kMaxDownSampleRatio <= samplingRate) { 5963 if (updatedSamplingRate != NULL) { 5964 *updatedSamplingRate = candidate; 5965 } 5966 return NO_ERROR; 5967 } 5968 } 5969 // But if we have to up-sample from a lower sampling rate, that's OK. 5970 if (maxBelow >= 0) { 5971 candidate = mSamplingRates[maxBelow]; 5972 if (candidate * kMaxUpSampleRatio >= samplingRate) { 5973 if (updatedSamplingRate != NULL) { 5974 *updatedSamplingRate = candidate; 5975 } 5976 return NO_ERROR; 5977 } 5978 } 5979 // leave updatedSamplingRate unmodified 5980 return BAD_VALUE; 5981} 5982 5983status_t AudioPolicyManager::AudioPort::checkExactChannelMask(audio_channel_mask_t channelMask) const 5984{ 5985 for (size_t i = 0; i < mChannelMasks.size(); i++) { 5986 if (mChannelMasks[i] == channelMask) { 5987 return NO_ERROR; 5988 } 5989 } 5990 return BAD_VALUE; 5991} 5992 5993status_t AudioPolicyManager::AudioPort::checkCompatibleChannelMask(audio_channel_mask_t channelMask) 5994 const 5995{ 5996 const bool isRecordThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SINK; 5997 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 5998 // FIXME Does not handle multi-channel automatic conversions yet 5999 audio_channel_mask_t supported = mChannelMasks[i]; 6000 if (supported == channelMask) { 6001 return NO_ERROR; 6002 } 6003 if (isRecordThread) { 6004 // This uses hard-coded knowledge that AudioFlinger can silently down-mix and up-mix. 6005 // FIXME Abstract this out to a table. 6006 if (((supported == AUDIO_CHANNEL_IN_FRONT_BACK || supported == AUDIO_CHANNEL_IN_STEREO) 6007 && channelMask == AUDIO_CHANNEL_IN_MONO) || 6008 (supported == AUDIO_CHANNEL_IN_MONO && (channelMask == AUDIO_CHANNEL_IN_FRONT_BACK 6009 || channelMask == AUDIO_CHANNEL_IN_STEREO))) { 6010 return NO_ERROR; 6011 } 6012 } 6013 } 6014 return BAD_VALUE; 6015} 6016 6017status_t AudioPolicyManager::AudioPort::checkFormat(audio_format_t format) const 6018{ 6019 for (size_t i = 0; i < mFormats.size(); i ++) { 6020 if (mFormats[i] == format) { 6021 return NO_ERROR; 6022 } 6023 } 6024 return BAD_VALUE; 6025} 6026 6027 6028uint32_t AudioPolicyManager::AudioPort::pickSamplingRate() const 6029{ 6030 // special case for uninitialized dynamic profile 6031 if (mSamplingRates.size() == 1 && mSamplingRates[0] == 0) { 6032 return 0; 6033 } 6034 6035 // For direct outputs, pick minimum sampling rate: this helps ensuring that the 6036 // channel count / sampling rate combination chosen will be supported by the connected 6037 // sink 6038 if ((mType == AUDIO_PORT_TYPE_MIX) && (mRole == AUDIO_PORT_ROLE_SOURCE) && 6039 (mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD))) { 6040 uint32_t samplingRate = UINT_MAX; 6041 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 6042 if ((mSamplingRates[i] < samplingRate) && (mSamplingRates[i] > 0)) { 6043 samplingRate = mSamplingRates[i]; 6044 } 6045 } 6046 return (samplingRate == UINT_MAX) ? 0 : samplingRate; 6047 } 6048 6049 uint32_t samplingRate = 0; 6050 uint32_t maxRate = MAX_MIXER_SAMPLING_RATE; 6051 6052 // For mixed output and inputs, use max mixer sampling rates. Do not 6053 // limit sampling rate otherwise 6054 if (mType != AUDIO_PORT_TYPE_MIX) { 6055 maxRate = UINT_MAX; 6056 } 6057 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 6058 if ((mSamplingRates[i] > samplingRate) && (mSamplingRates[i] <= maxRate)) { 6059 samplingRate = mSamplingRates[i]; 6060 } 6061 } 6062 return samplingRate; 6063} 6064 6065audio_channel_mask_t AudioPolicyManager::AudioPort::pickChannelMask() const 6066{ 6067 // special case for uninitialized dynamic profile 6068 if (mChannelMasks.size() == 1 && mChannelMasks[0] == 0) { 6069 return AUDIO_CHANNEL_NONE; 6070 } 6071 audio_channel_mask_t channelMask = AUDIO_CHANNEL_NONE; 6072 6073 // For direct outputs, pick minimum channel count: this helps ensuring that the 6074 // channel count / sampling rate combination chosen will be supported by the connected 6075 // sink 6076 if ((mType == AUDIO_PORT_TYPE_MIX) && (mRole == AUDIO_PORT_ROLE_SOURCE) && 6077 (mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD))) { 6078 uint32_t channelCount = UINT_MAX; 6079 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 6080 uint32_t cnlCount; 6081 if (mUseInChannelMask) { 6082 cnlCount = audio_channel_count_from_in_mask(mChannelMasks[i]); 6083 } else { 6084 cnlCount = audio_channel_count_from_out_mask(mChannelMasks[i]); 6085 } 6086 if ((cnlCount < channelCount) && (cnlCount > 0)) { 6087 channelMask = mChannelMasks[i]; 6088 channelCount = cnlCount; 6089 } 6090 } 6091 return channelMask; 6092 } 6093 6094 uint32_t channelCount = 0; 6095 uint32_t maxCount = MAX_MIXER_CHANNEL_COUNT; 6096 6097 // For mixed output and inputs, use max mixer channel count. Do not 6098 // limit channel count otherwise 6099 if (mType != AUDIO_PORT_TYPE_MIX) { 6100 maxCount = UINT_MAX; 6101 } 6102 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 6103 uint32_t cnlCount; 6104 if (mUseInChannelMask) { 6105 cnlCount = audio_channel_count_from_in_mask(mChannelMasks[i]); 6106 } else { 6107 cnlCount = audio_channel_count_from_out_mask(mChannelMasks[i]); 6108 } 6109 if ((cnlCount > channelCount) && (cnlCount <= maxCount)) { 6110 channelMask = mChannelMasks[i]; 6111 channelCount = cnlCount; 6112 } 6113 } 6114 return channelMask; 6115} 6116 6117/* format in order of increasing preference */ 6118const audio_format_t AudioPolicyManager::AudioPort::sPcmFormatCompareTable[] = { 6119 AUDIO_FORMAT_DEFAULT, 6120 AUDIO_FORMAT_PCM_16_BIT, 6121 AUDIO_FORMAT_PCM_8_24_BIT, 6122 AUDIO_FORMAT_PCM_24_BIT_PACKED, 6123 AUDIO_FORMAT_PCM_32_BIT, 6124 AUDIO_FORMAT_PCM_FLOAT, 6125}; 6126 6127int AudioPolicyManager::AudioPort::compareFormats(audio_format_t format1, 6128 audio_format_t format2) 6129{ 6130 // NOTE: AUDIO_FORMAT_INVALID is also considered not PCM and will be compared equal to any 6131 // compressed format and better than any PCM format. This is by design of pickFormat() 6132 if (!audio_is_linear_pcm(format1)) { 6133 if (!audio_is_linear_pcm(format2)) { 6134 return 0; 6135 } 6136 return 1; 6137 } 6138 if (!audio_is_linear_pcm(format2)) { 6139 return -1; 6140 } 6141 6142 int index1 = -1, index2 = -1; 6143 for (size_t i = 0; 6144 (i < ARRAY_SIZE(sPcmFormatCompareTable)) && ((index1 == -1) || (index2 == -1)); 6145 i ++) { 6146 if (sPcmFormatCompareTable[i] == format1) { 6147 index1 = i; 6148 } 6149 if (sPcmFormatCompareTable[i] == format2) { 6150 index2 = i; 6151 } 6152 } 6153 // format1 not found => index1 < 0 => format2 > format1 6154 // format2 not found => index2 < 0 => format2 < format1 6155 return index1 - index2; 6156} 6157 6158audio_format_t AudioPolicyManager::AudioPort::pickFormat() const 6159{ 6160 // special case for uninitialized dynamic profile 6161 if (mFormats.size() == 1 && mFormats[0] == 0) { 6162 return AUDIO_FORMAT_DEFAULT; 6163 } 6164 6165 audio_format_t format = AUDIO_FORMAT_DEFAULT; 6166 audio_format_t bestFormat = 6167 AudioPolicyManager::AudioPort::sPcmFormatCompareTable[ 6168 ARRAY_SIZE(AudioPolicyManager::AudioPort::sPcmFormatCompareTable) - 1]; 6169 // For mixed output and inputs, use best mixer output format. Do not 6170 // limit format otherwise 6171 if ((mType != AUDIO_PORT_TYPE_MIX) || 6172 ((mRole == AUDIO_PORT_ROLE_SOURCE) && 6173 (((mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)) != 0)))) { 6174 bestFormat = AUDIO_FORMAT_INVALID; 6175 } 6176 6177 for (size_t i = 0; i < mFormats.size(); i ++) { 6178 if ((compareFormats(mFormats[i], format) > 0) && 6179 (compareFormats(mFormats[i], bestFormat) <= 0)) { 6180 format = mFormats[i]; 6181 } 6182 } 6183 return format; 6184} 6185 6186status_t AudioPolicyManager::AudioPort::checkGain(const struct audio_gain_config *gainConfig, 6187 int index) const 6188{ 6189 if (index < 0 || (size_t)index >= mGains.size()) { 6190 return BAD_VALUE; 6191 } 6192 return mGains[index]->checkConfig(gainConfig); 6193} 6194 6195void AudioPolicyManager::AudioPort::dump(int fd, int spaces) const 6196{ 6197 const size_t SIZE = 256; 6198 char buffer[SIZE]; 6199 String8 result; 6200 6201 if (mName.size() != 0) { 6202 snprintf(buffer, SIZE, "%*s- name: %s\n", spaces, "", mName.string()); 6203 result.append(buffer); 6204 } 6205 6206 if (mSamplingRates.size() != 0) { 6207 snprintf(buffer, SIZE, "%*s- sampling rates: ", spaces, ""); 6208 result.append(buffer); 6209 for (size_t i = 0; i < mSamplingRates.size(); i++) { 6210 if (i == 0 && mSamplingRates[i] == 0) { 6211 snprintf(buffer, SIZE, "Dynamic"); 6212 } else { 6213 snprintf(buffer, SIZE, "%d", mSamplingRates[i]); 6214 } 6215 result.append(buffer); 6216 result.append(i == (mSamplingRates.size() - 1) ? "" : ", "); 6217 } 6218 result.append("\n"); 6219 } 6220 6221 if (mChannelMasks.size() != 0) { 6222 snprintf(buffer, SIZE, "%*s- channel masks: ", spaces, ""); 6223 result.append(buffer); 6224 for (size_t i = 0; i < mChannelMasks.size(); i++) { 6225 ALOGV("AudioPort::dump mChannelMasks %zu %08x", i, mChannelMasks[i]); 6226 6227 if (i == 0 && mChannelMasks[i] == 0) { 6228 snprintf(buffer, SIZE, "Dynamic"); 6229 } else { 6230 snprintf(buffer, SIZE, "0x%04x", mChannelMasks[i]); 6231 } 6232 result.append(buffer); 6233 result.append(i == (mChannelMasks.size() - 1) ? "" : ", "); 6234 } 6235 result.append("\n"); 6236 } 6237 6238 if (mFormats.size() != 0) { 6239 snprintf(buffer, SIZE, "%*s- formats: ", spaces, ""); 6240 result.append(buffer); 6241 for (size_t i = 0; i < mFormats.size(); i++) { 6242 const char *formatStr = enumToString(sFormatNameToEnumTable, 6243 ARRAY_SIZE(sFormatNameToEnumTable), 6244 mFormats[i]); 6245 if (i == 0 && strcmp(formatStr, "") == 0) { 6246 snprintf(buffer, SIZE, "Dynamic"); 6247 } else { 6248 snprintf(buffer, SIZE, "%s", formatStr); 6249 } 6250 result.append(buffer); 6251 result.append(i == (mFormats.size() - 1) ? "" : ", "); 6252 } 6253 result.append("\n"); 6254 } 6255 write(fd, result.string(), result.size()); 6256 if (mGains.size() != 0) { 6257 snprintf(buffer, SIZE, "%*s- gains:\n", spaces, ""); 6258 write(fd, buffer, strlen(buffer) + 1); 6259 result.append(buffer); 6260 for (size_t i = 0; i < mGains.size(); i++) { 6261 mGains[i]->dump(fd, spaces + 2, i); 6262 } 6263 } 6264} 6265 6266// --- AudioGain class implementation 6267 6268AudioPolicyManager::AudioGain::AudioGain(int index, bool useInChannelMask) 6269{ 6270 mIndex = index; 6271 mUseInChannelMask = useInChannelMask; 6272 memset(&mGain, 0, sizeof(struct audio_gain)); 6273} 6274 6275void AudioPolicyManager::AudioGain::getDefaultConfig(struct audio_gain_config *config) 6276{ 6277 config->index = mIndex; 6278 config->mode = mGain.mode; 6279 config->channel_mask = mGain.channel_mask; 6280 if ((mGain.mode & AUDIO_GAIN_MODE_JOINT) == AUDIO_GAIN_MODE_JOINT) { 6281 config->values[0] = mGain.default_value; 6282 } else { 6283 uint32_t numValues; 6284 if (mUseInChannelMask) { 6285 numValues = audio_channel_count_from_in_mask(mGain.channel_mask); 6286 } else { 6287 numValues = audio_channel_count_from_out_mask(mGain.channel_mask); 6288 } 6289 for (size_t i = 0; i < numValues; i++) { 6290 config->values[i] = mGain.default_value; 6291 } 6292 } 6293 if ((mGain.mode & AUDIO_GAIN_MODE_RAMP) == AUDIO_GAIN_MODE_RAMP) { 6294 config->ramp_duration_ms = mGain.min_ramp_ms; 6295 } 6296} 6297 6298status_t AudioPolicyManager::AudioGain::checkConfig(const struct audio_gain_config *config) 6299{ 6300 if ((config->mode & ~mGain.mode) != 0) { 6301 return BAD_VALUE; 6302 } 6303 if ((config->mode & AUDIO_GAIN_MODE_JOINT) == AUDIO_GAIN_MODE_JOINT) { 6304 if ((config->values[0] < mGain.min_value) || 6305 (config->values[0] > mGain.max_value)) { 6306 return BAD_VALUE; 6307 } 6308 } else { 6309 if ((config->channel_mask & ~mGain.channel_mask) != 0) { 6310 return BAD_VALUE; 6311 } 6312 uint32_t numValues; 6313 if (mUseInChannelMask) { 6314 numValues = audio_channel_count_from_in_mask(config->channel_mask); 6315 } else { 6316 numValues = audio_channel_count_from_out_mask(config->channel_mask); 6317 } 6318 for (size_t i = 0; i < numValues; i++) { 6319 if ((config->values[i] < mGain.min_value) || 6320 (config->values[i] > mGain.max_value)) { 6321 return BAD_VALUE; 6322 } 6323 } 6324 } 6325 if ((config->mode & AUDIO_GAIN_MODE_RAMP) == AUDIO_GAIN_MODE_RAMP) { 6326 if ((config->ramp_duration_ms < mGain.min_ramp_ms) || 6327 (config->ramp_duration_ms > mGain.max_ramp_ms)) { 6328 return BAD_VALUE; 6329 } 6330 } 6331 return NO_ERROR; 6332} 6333 6334void AudioPolicyManager::AudioGain::dump(int fd, int spaces, int index) const 6335{ 6336 const size_t SIZE = 256; 6337 char buffer[SIZE]; 6338 String8 result; 6339 6340 snprintf(buffer, SIZE, "%*sGain %d:\n", spaces, "", index+1); 6341 result.append(buffer); 6342 snprintf(buffer, SIZE, "%*s- mode: %08x\n", spaces, "", mGain.mode); 6343 result.append(buffer); 6344 snprintf(buffer, SIZE, "%*s- channel_mask: %08x\n", spaces, "", mGain.channel_mask); 6345 result.append(buffer); 6346 snprintf(buffer, SIZE, "%*s- min_value: %d mB\n", spaces, "", mGain.min_value); 6347 result.append(buffer); 6348 snprintf(buffer, SIZE, "%*s- max_value: %d mB\n", spaces, "", mGain.max_value); 6349 result.append(buffer); 6350 snprintf(buffer, SIZE, "%*s- default_value: %d mB\n", spaces, "", mGain.default_value); 6351 result.append(buffer); 6352 snprintf(buffer, SIZE, "%*s- step_value: %d mB\n", spaces, "", mGain.step_value); 6353 result.append(buffer); 6354 snprintf(buffer, SIZE, "%*s- min_ramp_ms: %d ms\n", spaces, "", mGain.min_ramp_ms); 6355 result.append(buffer); 6356 snprintf(buffer, SIZE, "%*s- max_ramp_ms: %d ms\n", spaces, "", mGain.max_ramp_ms); 6357 result.append(buffer); 6358 6359 write(fd, result.string(), result.size()); 6360} 6361 6362// --- AudioPortConfig class implementation 6363 6364AudioPolicyManager::AudioPortConfig::AudioPortConfig() 6365{ 6366 mSamplingRate = 0; 6367 mChannelMask = AUDIO_CHANNEL_NONE; 6368 mFormat = AUDIO_FORMAT_INVALID; 6369 mGain.index = -1; 6370} 6371 6372status_t AudioPolicyManager::AudioPortConfig::applyAudioPortConfig( 6373 const struct audio_port_config *config, 6374 struct audio_port_config *backupConfig) 6375{ 6376 struct audio_port_config localBackupConfig; 6377 status_t status = NO_ERROR; 6378 6379 localBackupConfig.config_mask = config->config_mask; 6380 toAudioPortConfig(&localBackupConfig); 6381 6382 sp<AudioPort> audioport = getAudioPort(); 6383 if (audioport == 0) { 6384 status = NO_INIT; 6385 goto exit; 6386 } 6387 if (config->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { 6388 status = audioport->checkExactSamplingRate(config->sample_rate); 6389 if (status != NO_ERROR) { 6390 goto exit; 6391 } 6392 mSamplingRate = config->sample_rate; 6393 } 6394 if (config->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { 6395 status = audioport->checkExactChannelMask(config->channel_mask); 6396 if (status != NO_ERROR) { 6397 goto exit; 6398 } 6399 mChannelMask = config->channel_mask; 6400 } 6401 if (config->config_mask & AUDIO_PORT_CONFIG_FORMAT) { 6402 status = audioport->checkFormat(config->format); 6403 if (status != NO_ERROR) { 6404 goto exit; 6405 } 6406 mFormat = config->format; 6407 } 6408 if (config->config_mask & AUDIO_PORT_CONFIG_GAIN) { 6409 status = audioport->checkGain(&config->gain, config->gain.index); 6410 if (status != NO_ERROR) { 6411 goto exit; 6412 } 6413 mGain = config->gain; 6414 } 6415 6416exit: 6417 if (status != NO_ERROR) { 6418 applyAudioPortConfig(&localBackupConfig); 6419 } 6420 if (backupConfig != NULL) { 6421 *backupConfig = localBackupConfig; 6422 } 6423 return status; 6424} 6425 6426void AudioPolicyManager::AudioPortConfig::toAudioPortConfig( 6427 struct audio_port_config *dstConfig, 6428 const struct audio_port_config *srcConfig) const 6429{ 6430 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { 6431 dstConfig->sample_rate = mSamplingRate; 6432 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE)) { 6433 dstConfig->sample_rate = srcConfig->sample_rate; 6434 } 6435 } else { 6436 dstConfig->sample_rate = 0; 6437 } 6438 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { 6439 dstConfig->channel_mask = mChannelMask; 6440 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK)) { 6441 dstConfig->channel_mask = srcConfig->channel_mask; 6442 } 6443 } else { 6444 dstConfig->channel_mask = AUDIO_CHANNEL_NONE; 6445 } 6446 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_FORMAT) { 6447 dstConfig->format = mFormat; 6448 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_FORMAT)) { 6449 dstConfig->format = srcConfig->format; 6450 } 6451 } else { 6452 dstConfig->format = AUDIO_FORMAT_INVALID; 6453 } 6454 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_GAIN) { 6455 dstConfig->gain = mGain; 6456 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_GAIN)) { 6457 dstConfig->gain = srcConfig->gain; 6458 } 6459 } else { 6460 dstConfig->gain.index = -1; 6461 } 6462 if (dstConfig->gain.index != -1) { 6463 dstConfig->config_mask |= AUDIO_PORT_CONFIG_GAIN; 6464 } else { 6465 dstConfig->config_mask &= ~AUDIO_PORT_CONFIG_GAIN; 6466 } 6467} 6468 6469// --- IOProfile class implementation 6470 6471AudioPolicyManager::IOProfile::IOProfile(const String8& name, audio_port_role_t role, 6472 const sp<HwModule>& module) 6473 : AudioPort(name, AUDIO_PORT_TYPE_MIX, role, module) 6474{ 6475} 6476 6477AudioPolicyManager::IOProfile::~IOProfile() 6478{ 6479} 6480 6481// checks if the IO profile is compatible with specified parameters. 6482// Sampling rate, format and channel mask must be specified in order to 6483// get a valid a match 6484bool AudioPolicyManager::IOProfile::isCompatibleProfile(audio_devices_t device, 6485 uint32_t samplingRate, 6486 uint32_t *updatedSamplingRate, 6487 audio_format_t format, 6488 audio_channel_mask_t channelMask, 6489 audio_output_flags_t flags) const 6490{ 6491 const bool isPlaybackThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SOURCE; 6492 const bool isRecordThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SINK; 6493 ALOG_ASSERT(isPlaybackThread != isRecordThread); 6494 6495 if ((mSupportedDevices.types() & device) != device) { 6496 return false; 6497 } 6498 6499 if (samplingRate == 0) { 6500 return false; 6501 } 6502 uint32_t myUpdatedSamplingRate = samplingRate; 6503 if (isPlaybackThread && checkExactSamplingRate(samplingRate) != NO_ERROR) { 6504 return false; 6505 } 6506 if (isRecordThread && checkCompatibleSamplingRate(samplingRate, &myUpdatedSamplingRate) != 6507 NO_ERROR) { 6508 return false; 6509 } 6510 6511 if (!audio_is_valid_format(format) || checkFormat(format) != NO_ERROR) { 6512 return false; 6513 } 6514 6515 if (isPlaybackThread && (!audio_is_output_channel(channelMask) || 6516 checkExactChannelMask(channelMask) != NO_ERROR)) { 6517 return false; 6518 } 6519 if (isRecordThread && (!audio_is_input_channel(channelMask) || 6520 checkCompatibleChannelMask(channelMask) != NO_ERROR)) { 6521 return false; 6522 } 6523 6524 if (isPlaybackThread && (mFlags & flags) != flags) { 6525 return false; 6526 } 6527 // The only input flag that is allowed to be different is the fast flag. 6528 // An existing fast stream is compatible with a normal track request. 6529 // An existing normal stream is compatible with a fast track request, 6530 // but the fast request will be denied by AudioFlinger and converted to normal track. 6531 if (isRecordThread && (((audio_input_flags_t) mFlags ^ (audio_input_flags_t) flags) & 6532 ~AUDIO_INPUT_FLAG_FAST)) { 6533 return false; 6534 } 6535 6536 if (updatedSamplingRate != NULL) { 6537 *updatedSamplingRate = myUpdatedSamplingRate; 6538 } 6539 return true; 6540} 6541 6542void AudioPolicyManager::IOProfile::dump(int fd) 6543{ 6544 const size_t SIZE = 256; 6545 char buffer[SIZE]; 6546 String8 result; 6547 6548 AudioPort::dump(fd, 4); 6549 6550 snprintf(buffer, SIZE, " - flags: 0x%04x\n", mFlags); 6551 result.append(buffer); 6552 snprintf(buffer, SIZE, " - devices:\n"); 6553 result.append(buffer); 6554 write(fd, result.string(), result.size()); 6555 for (size_t i = 0; i < mSupportedDevices.size(); i++) { 6556 mSupportedDevices[i]->dump(fd, 6, i); 6557 } 6558} 6559 6560void AudioPolicyManager::IOProfile::log() 6561{ 6562 const size_t SIZE = 256; 6563 char buffer[SIZE]; 6564 String8 result; 6565 6566 ALOGV(" - sampling rates: "); 6567 for (size_t i = 0; i < mSamplingRates.size(); i++) { 6568 ALOGV(" %d", mSamplingRates[i]); 6569 } 6570 6571 ALOGV(" - channel masks: "); 6572 for (size_t i = 0; i < mChannelMasks.size(); i++) { 6573 ALOGV(" 0x%04x", mChannelMasks[i]); 6574 } 6575 6576 ALOGV(" - formats: "); 6577 for (size_t i = 0; i < mFormats.size(); i++) { 6578 ALOGV(" 0x%08x", mFormats[i]); 6579 } 6580 6581 ALOGV(" - devices: 0x%04x\n", mSupportedDevices.types()); 6582 ALOGV(" - flags: 0x%04x\n", mFlags); 6583} 6584 6585 6586// --- DeviceDescriptor implementation 6587 6588 6589AudioPolicyManager::DeviceDescriptor::DeviceDescriptor(const String8& name, audio_devices_t type) : 6590 AudioPort(name, AUDIO_PORT_TYPE_DEVICE, 6591 audio_is_output_device(type) ? AUDIO_PORT_ROLE_SINK : 6592 AUDIO_PORT_ROLE_SOURCE, 6593 NULL), 6594 mDeviceType(type), mAddress(""), mId(0) 6595{ 6596 if (mGains.size() > 0) { 6597 mGains[0]->getDefaultConfig(&mGain); 6598 } 6599} 6600 6601bool AudioPolicyManager::DeviceDescriptor::equals(const sp<DeviceDescriptor>& other) const 6602{ 6603 // Devices are considered equal if they: 6604 // - are of the same type (a device type cannot be AUDIO_DEVICE_NONE) 6605 // - have the same address or one device does not specify the address 6606 // - have the same channel mask or one device does not specify the channel mask 6607 return (mDeviceType == other->mDeviceType) && 6608 (mAddress == "" || other->mAddress == "" || mAddress == other->mAddress) && 6609 (mChannelMask == 0 || other->mChannelMask == 0 || 6610 mChannelMask == other->mChannelMask); 6611} 6612 6613void AudioPolicyManager::DeviceVector::refreshTypes() 6614{ 6615 mDeviceTypes = AUDIO_DEVICE_NONE; 6616 for(size_t i = 0; i < size(); i++) { 6617 mDeviceTypes |= itemAt(i)->mDeviceType; 6618 } 6619 ALOGV("DeviceVector::refreshTypes() mDeviceTypes %08x", mDeviceTypes); 6620} 6621 6622ssize_t AudioPolicyManager::DeviceVector::indexOf(const sp<DeviceDescriptor>& item) const 6623{ 6624 for(size_t i = 0; i < size(); i++) { 6625 if (item->equals(itemAt(i))) { 6626 return i; 6627 } 6628 } 6629 return -1; 6630} 6631 6632ssize_t AudioPolicyManager::DeviceVector::add(const sp<DeviceDescriptor>& item) 6633{ 6634 ssize_t ret = indexOf(item); 6635 6636 if (ret < 0) { 6637 ret = SortedVector::add(item); 6638 if (ret >= 0) { 6639 refreshTypes(); 6640 } 6641 } else { 6642 ALOGW("DeviceVector::add device %08x already in", item->mDeviceType); 6643 ret = -1; 6644 } 6645 return ret; 6646} 6647 6648ssize_t AudioPolicyManager::DeviceVector::remove(const sp<DeviceDescriptor>& item) 6649{ 6650 size_t i; 6651 ssize_t ret = indexOf(item); 6652 6653 if (ret < 0) { 6654 ALOGW("DeviceVector::remove device %08x not in", item->mDeviceType); 6655 } else { 6656 ret = SortedVector::removeAt(ret); 6657 if (ret >= 0) { 6658 refreshTypes(); 6659 } 6660 } 6661 return ret; 6662} 6663 6664void AudioPolicyManager::DeviceVector::loadDevicesFromType(audio_devices_t types) 6665{ 6666 DeviceVector deviceList; 6667 6668 uint32_t role_bit = AUDIO_DEVICE_BIT_IN & types; 6669 types &= ~role_bit; 6670 6671 while (types) { 6672 uint32_t i = 31 - __builtin_clz(types); 6673 uint32_t type = 1 << i; 6674 types &= ~type; 6675 add(new DeviceDescriptor(String8(""), type | role_bit)); 6676 } 6677} 6678 6679void AudioPolicyManager::DeviceVector::loadDevicesFromName(char *name, 6680 const DeviceVector& declaredDevices) 6681{ 6682 char *devName = strtok(name, "|"); 6683 while (devName != NULL) { 6684 if (strlen(devName) != 0) { 6685 audio_devices_t type = stringToEnum(sDeviceNameToEnumTable, 6686 ARRAY_SIZE(sDeviceNameToEnumTable), 6687 devName); 6688 if (type != AUDIO_DEVICE_NONE) { 6689 add(new DeviceDescriptor(String8(""), type)); 6690 } else { 6691 sp<DeviceDescriptor> deviceDesc = 6692 declaredDevices.getDeviceFromName(String8(devName)); 6693 if (deviceDesc != 0) { 6694 add(deviceDesc); 6695 } 6696 } 6697 } 6698 devName = strtok(NULL, "|"); 6699 } 6700} 6701 6702sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDevice( 6703 audio_devices_t type, String8 address) const 6704{ 6705 sp<DeviceDescriptor> device; 6706 for (size_t i = 0; i < size(); i++) { 6707 if (itemAt(i)->mDeviceType == type) { 6708 device = itemAt(i); 6709 if (itemAt(i)->mAddress = address) { 6710 break; 6711 } 6712 } 6713 } 6714 ALOGV("DeviceVector::getDevice() for type %d address %s found %p", 6715 type, address.string(), device.get()); 6716 return device; 6717} 6718 6719sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDeviceFromId( 6720 audio_port_handle_t id) const 6721{ 6722 sp<DeviceDescriptor> device; 6723 for (size_t i = 0; i < size(); i++) { 6724 ALOGV("DeviceVector::getDeviceFromId(%d) itemAt(%zu)->mId %d", id, i, itemAt(i)->mId); 6725 if (itemAt(i)->mId == id) { 6726 device = itemAt(i); 6727 break; 6728 } 6729 } 6730 return device; 6731} 6732 6733AudioPolicyManager::DeviceVector AudioPolicyManager::DeviceVector::getDevicesFromType( 6734 audio_devices_t type) const 6735{ 6736 DeviceVector devices; 6737 for (size_t i = 0; (i < size()) && (type != AUDIO_DEVICE_NONE); i++) { 6738 if (itemAt(i)->mDeviceType & type & ~AUDIO_DEVICE_BIT_IN) { 6739 devices.add(itemAt(i)); 6740 type &= ~itemAt(i)->mDeviceType; 6741 ALOGV("DeviceVector::getDevicesFromType() for type %x found %p", 6742 itemAt(i)->mDeviceType, itemAt(i).get()); 6743 } 6744 } 6745 return devices; 6746} 6747 6748AudioPolicyManager::DeviceVector AudioPolicyManager::DeviceVector::getDevicesFromTypeAddr( 6749 audio_devices_t type, String8 address) const 6750{ 6751 DeviceVector devices; 6752 //ALOGV(" looking for device=%x, addr=%s", type, address.string()); 6753 for (size_t i = 0; i < size(); i++) { 6754 //ALOGV(" at i=%d: device=%x, addr=%s", 6755 // i, itemAt(i)->mDeviceType, itemAt(i)->mAddress.string()); 6756 if (itemAt(i)->mDeviceType == type) { 6757 if (itemAt(i)->mAddress == address) { 6758 //ALOGV(" found matching address %s", address.string()); 6759 devices.add(itemAt(i)); 6760 } 6761 } 6762 } 6763 return devices; 6764} 6765 6766sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDeviceFromName( 6767 const String8& name) const 6768{ 6769 sp<DeviceDescriptor> device; 6770 for (size_t i = 0; i < size(); i++) { 6771 if (itemAt(i)->mName == name) { 6772 device = itemAt(i); 6773 break; 6774 } 6775 } 6776 return device; 6777} 6778 6779void AudioPolicyManager::DeviceDescriptor::toAudioPortConfig( 6780 struct audio_port_config *dstConfig, 6781 const struct audio_port_config *srcConfig) const 6782{ 6783 dstConfig->config_mask = AUDIO_PORT_CONFIG_CHANNEL_MASK|AUDIO_PORT_CONFIG_GAIN; 6784 if (srcConfig != NULL) { 6785 dstConfig->config_mask |= srcConfig->config_mask; 6786 } 6787 6788 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 6789 6790 dstConfig->id = mId; 6791 dstConfig->role = audio_is_output_device(mDeviceType) ? 6792 AUDIO_PORT_ROLE_SINK : AUDIO_PORT_ROLE_SOURCE; 6793 dstConfig->type = AUDIO_PORT_TYPE_DEVICE; 6794 dstConfig->ext.device.type = mDeviceType; 6795 dstConfig->ext.device.hw_module = mModule->mHandle; 6796 strncpy(dstConfig->ext.device.address, mAddress.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN); 6797} 6798 6799void AudioPolicyManager::DeviceDescriptor::toAudioPort(struct audio_port *port) const 6800{ 6801 ALOGV("DeviceDescriptor::toAudioPort() handle %d type %x", mId, mDeviceType); 6802 AudioPort::toAudioPort(port); 6803 port->id = mId; 6804 toAudioPortConfig(&port->active_config); 6805 port->ext.device.type = mDeviceType; 6806 port->ext.device.hw_module = mModule->mHandle; 6807 strncpy(port->ext.device.address, mAddress.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN); 6808} 6809 6810status_t AudioPolicyManager::DeviceDescriptor::dump(int fd, int spaces, int index) const 6811{ 6812 const size_t SIZE = 256; 6813 char buffer[SIZE]; 6814 String8 result; 6815 6816 snprintf(buffer, SIZE, "%*sDevice %d:\n", spaces, "", index+1); 6817 result.append(buffer); 6818 if (mId != 0) { 6819 snprintf(buffer, SIZE, "%*s- id: %2d\n", spaces, "", mId); 6820 result.append(buffer); 6821 } 6822 snprintf(buffer, SIZE, "%*s- type: %-48s\n", spaces, "", 6823 enumToString(sDeviceNameToEnumTable, 6824 ARRAY_SIZE(sDeviceNameToEnumTable), 6825 mDeviceType)); 6826 result.append(buffer); 6827 if (mAddress.size() != 0) { 6828 snprintf(buffer, SIZE, "%*s- address: %-32s\n", spaces, "", mAddress.string()); 6829 result.append(buffer); 6830 } 6831 write(fd, result.string(), result.size()); 6832 AudioPort::dump(fd, spaces); 6833 6834 return NO_ERROR; 6835} 6836 6837status_t AudioPolicyManager::AudioPatch::dump(int fd, int spaces, int index) const 6838{ 6839 const size_t SIZE = 256; 6840 char buffer[SIZE]; 6841 String8 result; 6842 6843 6844 snprintf(buffer, SIZE, "%*sAudio patch %d:\n", spaces, "", index+1); 6845 result.append(buffer); 6846 snprintf(buffer, SIZE, "%*s- handle: %2d\n", spaces, "", mHandle); 6847 result.append(buffer); 6848 snprintf(buffer, SIZE, "%*s- audio flinger handle: %2d\n", spaces, "", mAfPatchHandle); 6849 result.append(buffer); 6850 snprintf(buffer, SIZE, "%*s- owner uid: %2d\n", spaces, "", mUid); 6851 result.append(buffer); 6852 snprintf(buffer, SIZE, "%*s- %d sources:\n", spaces, "", mPatch.num_sources); 6853 result.append(buffer); 6854 for (size_t i = 0; i < mPatch.num_sources; i++) { 6855 if (mPatch.sources[i].type == AUDIO_PORT_TYPE_DEVICE) { 6856 snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "", 6857 mPatch.sources[i].id, enumToString(sDeviceNameToEnumTable, 6858 ARRAY_SIZE(sDeviceNameToEnumTable), 6859 mPatch.sources[i].ext.device.type)); 6860 } else { 6861 snprintf(buffer, SIZE, "%*s- Mix ID %d I/O handle %d\n", spaces + 2, "", 6862 mPatch.sources[i].id, mPatch.sources[i].ext.mix.handle); 6863 } 6864 result.append(buffer); 6865 } 6866 snprintf(buffer, SIZE, "%*s- %d sinks:\n", spaces, "", mPatch.num_sinks); 6867 result.append(buffer); 6868 for (size_t i = 0; i < mPatch.num_sinks; i++) { 6869 if (mPatch.sinks[i].type == AUDIO_PORT_TYPE_DEVICE) { 6870 snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "", 6871 mPatch.sinks[i].id, enumToString(sDeviceNameToEnumTable, 6872 ARRAY_SIZE(sDeviceNameToEnumTable), 6873 mPatch.sinks[i].ext.device.type)); 6874 } else { 6875 snprintf(buffer, SIZE, "%*s- Mix ID %d I/O handle %d\n", spaces + 2, "", 6876 mPatch.sinks[i].id, mPatch.sinks[i].ext.mix.handle); 6877 } 6878 result.append(buffer); 6879 } 6880 6881 write(fd, result.string(), result.size()); 6882 return NO_ERROR; 6883} 6884 6885// --- audio_policy.conf file parsing 6886 6887audio_output_flags_t AudioPolicyManager::parseFlagNames(char *name) 6888{ 6889 uint32_t flag = 0; 6890 6891 // it is OK to cast name to non const here as we are not going to use it after 6892 // strtok() modifies it 6893 char *flagName = strtok(name, "|"); 6894 while (flagName != NULL) { 6895 if (strlen(flagName) != 0) { 6896 flag |= stringToEnum(sFlagNameToEnumTable, 6897 ARRAY_SIZE(sFlagNameToEnumTable), 6898 flagName); 6899 } 6900 flagName = strtok(NULL, "|"); 6901 } 6902 //force direct flag if offload flag is set: offloading implies a direct output stream 6903 // and all common behaviors are driven by checking only the direct flag 6904 // this should normally be set appropriately in the policy configuration file 6905 if ((flag & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 6906 flag |= AUDIO_OUTPUT_FLAG_DIRECT; 6907 } 6908 6909 return (audio_output_flags_t)flag; 6910} 6911 6912audio_devices_t AudioPolicyManager::parseDeviceNames(char *name) 6913{ 6914 uint32_t device = 0; 6915 6916 char *devName = strtok(name, "|"); 6917 while (devName != NULL) { 6918 if (strlen(devName) != 0) { 6919 device |= stringToEnum(sDeviceNameToEnumTable, 6920 ARRAY_SIZE(sDeviceNameToEnumTable), 6921 devName); 6922 } 6923 devName = strtok(NULL, "|"); 6924 } 6925 return device; 6926} 6927 6928void AudioPolicyManager::loadHwModule(cnode *root) 6929{ 6930 status_t status = NAME_NOT_FOUND; 6931 cnode *node; 6932 sp<HwModule> module = new HwModule(root->name); 6933 6934 node = config_find(root, DEVICES_TAG); 6935 if (node != NULL) { 6936 node = node->first_child; 6937 while (node) { 6938 ALOGV("loadHwModule() loading device %s", node->name); 6939 status_t tmpStatus = module->loadDevice(node); 6940 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 6941 status = tmpStatus; 6942 } 6943 node = node->next; 6944 } 6945 } 6946 node = config_find(root, OUTPUTS_TAG); 6947 if (node != NULL) { 6948 node = node->first_child; 6949 while (node) { 6950 ALOGV("loadHwModule() loading output %s", node->name); 6951 status_t tmpStatus = module->loadOutput(node); 6952 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 6953 status = tmpStatus; 6954 } 6955 node = node->next; 6956 } 6957 } 6958 node = config_find(root, INPUTS_TAG); 6959 if (node != NULL) { 6960 node = node->first_child; 6961 while (node) { 6962 ALOGV("loadHwModule() loading input %s", node->name); 6963 status_t tmpStatus = module->loadInput(node); 6964 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 6965 status = tmpStatus; 6966 } 6967 node = node->next; 6968 } 6969 } 6970 loadGlobalConfig(root, module); 6971 6972 if (status == NO_ERROR) { 6973 mHwModules.add(module); 6974 } 6975} 6976 6977void AudioPolicyManager::loadHwModules(cnode *root) 6978{ 6979 cnode *node = config_find(root, AUDIO_HW_MODULE_TAG); 6980 if (node == NULL) { 6981 return; 6982 } 6983 6984 node = node->first_child; 6985 while (node) { 6986 ALOGV("loadHwModules() loading module %s", node->name); 6987 loadHwModule(node); 6988 node = node->next; 6989 } 6990} 6991 6992void AudioPolicyManager::loadGlobalConfig(cnode *root, const sp<HwModule>& module) 6993{ 6994 cnode *node = config_find(root, GLOBAL_CONFIG_TAG); 6995 6996 if (node == NULL) { 6997 return; 6998 } 6999 DeviceVector declaredDevices; 7000 if (module != NULL) { 7001 declaredDevices = module->mDeclaredDevices; 7002 } 7003 7004 node = node->first_child; 7005 while (node) { 7006 if (strcmp(ATTACHED_OUTPUT_DEVICES_TAG, node->name) == 0) { 7007 mAvailableOutputDevices.loadDevicesFromName((char *)node->value, 7008 declaredDevices); 7009 ALOGV("loadGlobalConfig() Attached Output Devices %08x", 7010 mAvailableOutputDevices.types()); 7011 } else if (strcmp(DEFAULT_OUTPUT_DEVICE_TAG, node->name) == 0) { 7012 audio_devices_t device = (audio_devices_t)stringToEnum(sDeviceNameToEnumTable, 7013 ARRAY_SIZE(sDeviceNameToEnumTable), 7014 (char *)node->value); 7015 if (device != AUDIO_DEVICE_NONE) { 7016 mDefaultOutputDevice = new DeviceDescriptor(String8(""), device); 7017 } else { 7018 ALOGW("loadGlobalConfig() default device not specified"); 7019 } 7020 ALOGV("loadGlobalConfig() mDefaultOutputDevice %08x", mDefaultOutputDevice->mDeviceType); 7021 } else if (strcmp(ATTACHED_INPUT_DEVICES_TAG, node->name) == 0) { 7022 mAvailableInputDevices.loadDevicesFromName((char *)node->value, 7023 declaredDevices); 7024 ALOGV("loadGlobalConfig() Available InputDevices %08x", mAvailableInputDevices.types()); 7025 } else if (strcmp(SPEAKER_DRC_ENABLED_TAG, node->name) == 0) { 7026 mSpeakerDrcEnabled = stringToBool((char *)node->value); 7027 ALOGV("loadGlobalConfig() mSpeakerDrcEnabled = %d", mSpeakerDrcEnabled); 7028 } else if (strcmp(AUDIO_HAL_VERSION_TAG, node->name) == 0) { 7029 uint32_t major, minor; 7030 sscanf((char *)node->value, "%u.%u", &major, &minor); 7031 module->mHalVersion = HARDWARE_DEVICE_API_VERSION(major, minor); 7032 ALOGV("loadGlobalConfig() mHalVersion = %04x major %u minor %u", 7033 module->mHalVersion, major, minor); 7034 } 7035 node = node->next; 7036 } 7037} 7038 7039status_t AudioPolicyManager::loadAudioPolicyConfig(const char *path) 7040{ 7041 cnode *root; 7042 char *data; 7043 7044 data = (char *)load_file(path, NULL); 7045 if (data == NULL) { 7046 return -ENODEV; 7047 } 7048 root = config_node("", ""); 7049 config_load(root, data); 7050 7051 loadHwModules(root); 7052 // legacy audio_policy.conf files have one global_configuration section 7053 loadGlobalConfig(root, getModuleFromName(AUDIO_HARDWARE_MODULE_ID_PRIMARY)); 7054 config_free(root); 7055 free(root); 7056 free(data); 7057 7058 ALOGI("loadAudioPolicyConfig() loaded %s\n", path); 7059 7060 return NO_ERROR; 7061} 7062 7063void AudioPolicyManager::defaultAudioPolicyConfig(void) 7064{ 7065 sp<HwModule> module; 7066 sp<IOProfile> profile; 7067 sp<DeviceDescriptor> defaultInputDevice = new DeviceDescriptor(String8(""), 7068 AUDIO_DEVICE_IN_BUILTIN_MIC); 7069 mAvailableOutputDevices.add(mDefaultOutputDevice); 7070 mAvailableInputDevices.add(defaultInputDevice); 7071 7072 module = new HwModule("primary"); 7073 7074 profile = new IOProfile(String8("primary"), AUDIO_PORT_ROLE_SOURCE, module); 7075 profile->mSamplingRates.add(44100); 7076 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 7077 profile->mChannelMasks.add(AUDIO_CHANNEL_OUT_STEREO); 7078 profile->mSupportedDevices.add(mDefaultOutputDevice); 7079 profile->mFlags = AUDIO_OUTPUT_FLAG_PRIMARY; 7080 module->mOutputProfiles.add(profile); 7081 7082 profile = new IOProfile(String8("primary"), AUDIO_PORT_ROLE_SINK, module); 7083 profile->mSamplingRates.add(8000); 7084 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 7085 profile->mChannelMasks.add(AUDIO_CHANNEL_IN_MONO); 7086 profile->mSupportedDevices.add(defaultInputDevice); 7087 module->mInputProfiles.add(profile); 7088 7089 mHwModules.add(module); 7090} 7091 7092audio_stream_type_t AudioPolicyManager::streamTypefromAttributesInt(const audio_attributes_t *attr) 7093{ 7094 // flags to stream type mapping 7095 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 7096 return AUDIO_STREAM_ENFORCED_AUDIBLE; 7097 } 7098 if ((attr->flags & AUDIO_FLAG_SCO) == AUDIO_FLAG_SCO) { 7099 return AUDIO_STREAM_BLUETOOTH_SCO; 7100 } 7101 7102 // usage to stream type mapping 7103 switch (attr->usage) { 7104 case AUDIO_USAGE_MEDIA: 7105 case AUDIO_USAGE_GAME: 7106 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 7107 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 7108 return AUDIO_STREAM_MUSIC; 7109 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 7110 return AUDIO_STREAM_SYSTEM; 7111 case AUDIO_USAGE_VOICE_COMMUNICATION: 7112 return AUDIO_STREAM_VOICE_CALL; 7113 7114 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 7115 return AUDIO_STREAM_DTMF; 7116 7117 case AUDIO_USAGE_ALARM: 7118 return AUDIO_STREAM_ALARM; 7119 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 7120 return AUDIO_STREAM_RING; 7121 7122 case AUDIO_USAGE_NOTIFICATION: 7123 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 7124 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 7125 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 7126 case AUDIO_USAGE_NOTIFICATION_EVENT: 7127 return AUDIO_STREAM_NOTIFICATION; 7128 7129 case AUDIO_USAGE_UNKNOWN: 7130 default: 7131 return AUDIO_STREAM_MUSIC; 7132 } 7133} 7134}; // namespace android 7135