AudioPolicyManager.cpp revision 5bd3f38638acab633d181359cc9ec27b80f84d43
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 34#include <inttypes.h> 35#include <math.h> 36 37#include <cutils/properties.h> 38#include <utils/Log.h> 39#include <hardware/audio.h> 40#include <hardware/audio_effect.h> 41#include <media/AudioParameter.h> 42#include "AudioPolicyManager.h" 43#include "audio_policy_conf.h" 44 45namespace android { 46 47// ---------------------------------------------------------------------------- 48// Definitions for audio_policy.conf file parsing 49// ---------------------------------------------------------------------------- 50 51struct StringToEnum { 52 const char *name; 53 uint32_t value; 54}; 55 56#define STRING_TO_ENUM(string) { #string, string } 57#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) 58 59const StringToEnum sDeviceNameToEnumTable[] = { 60 STRING_TO_ENUM(AUDIO_DEVICE_OUT_EARPIECE), 61 STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPEAKER), 62 STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADSET), 63 STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADPHONE), 64 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO), 65 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET), 66 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT), 67 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_SCO), 68 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP), 69 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES), 70 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER), 71 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_A2DP), 72 STRING_TO_ENUM(AUDIO_DEVICE_OUT_AUX_DIGITAL), 73 STRING_TO_ENUM(AUDIO_DEVICE_OUT_HDMI), 74 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET), 75 STRING_TO_ENUM(AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET), 76 STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_ACCESSORY), 77 STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_DEVICE), 78 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_USB), 79 STRING_TO_ENUM(AUDIO_DEVICE_OUT_REMOTE_SUBMIX), 80 STRING_TO_ENUM(AUDIO_DEVICE_OUT_TELEPHONY_TX), 81 STRING_TO_ENUM(AUDIO_DEVICE_OUT_LINE), 82 STRING_TO_ENUM(AUDIO_DEVICE_OUT_HDMI_ARC), 83 STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPDIF), 84 STRING_TO_ENUM(AUDIO_DEVICE_OUT_FM), 85 STRING_TO_ENUM(AUDIO_DEVICE_IN_BUILTIN_MIC), 86 STRING_TO_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET), 87 STRING_TO_ENUM(AUDIO_DEVICE_IN_ALL_SCO), 88 STRING_TO_ENUM(AUDIO_DEVICE_IN_WIRED_HEADSET), 89 STRING_TO_ENUM(AUDIO_DEVICE_IN_AUX_DIGITAL), 90 STRING_TO_ENUM(AUDIO_DEVICE_IN_HDMI), 91 STRING_TO_ENUM(AUDIO_DEVICE_IN_VOICE_CALL), 92 STRING_TO_ENUM(AUDIO_DEVICE_IN_TELEPHONY_RX), 93 STRING_TO_ENUM(AUDIO_DEVICE_IN_BACK_MIC), 94 STRING_TO_ENUM(AUDIO_DEVICE_IN_REMOTE_SUBMIX), 95 STRING_TO_ENUM(AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET), 96 STRING_TO_ENUM(AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET), 97 STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_ACCESSORY), 98 STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_DEVICE), 99 STRING_TO_ENUM(AUDIO_DEVICE_IN_FM_TUNER), 100 STRING_TO_ENUM(AUDIO_DEVICE_IN_TV_TUNER), 101 STRING_TO_ENUM(AUDIO_DEVICE_IN_LINE), 102 STRING_TO_ENUM(AUDIO_DEVICE_IN_SPDIF), 103 STRING_TO_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_A2DP), 104}; 105 106const StringToEnum sFlagNameToEnumTable[] = { 107 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DIRECT), 108 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_PRIMARY), 109 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_FAST), 110 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DEEP_BUFFER), 111 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD), 112 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_NON_BLOCKING), 113}; 114 115const StringToEnum sFormatNameToEnumTable[] = { 116 STRING_TO_ENUM(AUDIO_FORMAT_PCM_16_BIT), 117 STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_BIT), 118 STRING_TO_ENUM(AUDIO_FORMAT_PCM_32_BIT), 119 STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_24_BIT), 120 STRING_TO_ENUM(AUDIO_FORMAT_PCM_FLOAT), 121 STRING_TO_ENUM(AUDIO_FORMAT_PCM_24_BIT_PACKED), 122 STRING_TO_ENUM(AUDIO_FORMAT_MP3), 123 STRING_TO_ENUM(AUDIO_FORMAT_AAC), 124 STRING_TO_ENUM(AUDIO_FORMAT_VORBIS), 125}; 126 127const StringToEnum sOutChannelsNameToEnumTable[] = { 128 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_MONO), 129 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_STEREO), 130 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_5POINT1), 131 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_7POINT1), 132}; 133 134const StringToEnum sInChannelsNameToEnumTable[] = { 135 STRING_TO_ENUM(AUDIO_CHANNEL_IN_MONO), 136 STRING_TO_ENUM(AUDIO_CHANNEL_IN_STEREO), 137 STRING_TO_ENUM(AUDIO_CHANNEL_IN_FRONT_BACK), 138}; 139 140const StringToEnum sGainModeNameToEnumTable[] = { 141 STRING_TO_ENUM(AUDIO_GAIN_MODE_JOINT), 142 STRING_TO_ENUM(AUDIO_GAIN_MODE_CHANNELS), 143 STRING_TO_ENUM(AUDIO_GAIN_MODE_RAMP), 144}; 145 146 147uint32_t AudioPolicyManager::stringToEnum(const struct StringToEnum *table, 148 size_t size, 149 const char *name) 150{ 151 for (size_t i = 0; i < size; i++) { 152 if (strcmp(table[i].name, name) == 0) { 153 ALOGV("stringToEnum() found %s", table[i].name); 154 return table[i].value; 155 } 156 } 157 return 0; 158} 159 160const char *AudioPolicyManager::enumToString(const struct StringToEnum *table, 161 size_t size, 162 uint32_t value) 163{ 164 for (size_t i = 0; i < size; i++) { 165 if (table[i].value == value) { 166 return table[i].name; 167 } 168 } 169 return ""; 170} 171 172bool AudioPolicyManager::stringToBool(const char *value) 173{ 174 return ((strcasecmp("true", value) == 0) || (strcmp("1", value) == 0)); 175} 176 177 178// ---------------------------------------------------------------------------- 179// AudioPolicyInterface implementation 180// ---------------------------------------------------------------------------- 181 182 183status_t AudioPolicyManager::setDeviceConnectionState(audio_devices_t device, 184 audio_policy_dev_state_t state, 185 const char *device_address) 186{ 187 String8 address = String8(device_address); 188 189 ALOGV("setDeviceConnectionState() device: %x, state %d, address %s", device, state, device_address); 190 191 // connect/disconnect only 1 device at a time 192 if (!audio_is_output_device(device) && !audio_is_input_device(device)) return BAD_VALUE; 193 194 // handle output devices 195 if (audio_is_output_device(device)) { 196 SortedVector <audio_io_handle_t> outputs; 197 198 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 199 devDesc->mAddress = address; 200 ssize_t index = mAvailableOutputDevices.indexOf(devDesc); 201 202 // save a copy of the opened output descriptors before any output is opened or closed 203 // by checkOutputsForDevice(). This will be needed by checkOutputForAllStrategies() 204 mPreviousOutputs = mOutputs; 205 switch (state) 206 { 207 // handle output device connection 208 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: 209 if (index >= 0) { 210 ALOGW("setDeviceConnectionState() device already connected: %x", device); 211 return INVALID_OPERATION; 212 } 213 ALOGV("setDeviceConnectionState() connecting device %x", device); 214 215 if (checkOutputsForDevice(device, state, outputs, address) != NO_ERROR) { 216 return INVALID_OPERATION; 217 } 218 // outputs should never be empty here 219 ALOG_ASSERT(outputs.size() != 0, "setDeviceConnectionState():" 220 "checkOutputsForDevice() returned no outputs but status OK"); 221 ALOGV("setDeviceConnectionState() checkOutputsForDevice() returned %zu outputs", 222 outputs.size()); 223 // register new device as available 224 index = mAvailableOutputDevices.add(devDesc); 225 if (index >= 0) { 226 mAvailableOutputDevices[index]->mId = nextUniqueId(); 227 sp<HwModule> module = getModuleForDevice(device); 228 ALOG_ASSERT(module != NULL, "setDeviceConnectionState():" 229 "could not find HW module for device %08x", device); 230 mAvailableOutputDevices[index]->mModule = module; 231 } else { 232 return NO_MEMORY; 233 } 234 235 break; 236 // handle output device disconnection 237 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 238 if (index < 0) { 239 ALOGW("setDeviceConnectionState() device not connected: %x", device); 240 return INVALID_OPERATION; 241 } 242 243 ALOGV("setDeviceConnectionState() disconnecting device %x", device); 244 // remove device from available output devices 245 mAvailableOutputDevices.remove(devDesc); 246 247 checkOutputsForDevice(device, state, outputs, address); 248 // not currently handling multiple simultaneous submixes: ignoring remote submix 249 // case and address 250 } break; 251 252 default: 253 ALOGE("setDeviceConnectionState() invalid state: %x", state); 254 return BAD_VALUE; 255 } 256 257 // checkA2dpSuspend must run before checkOutputForAllStrategies so that A2DP 258 // output is suspended before any tracks are moved to it 259 checkA2dpSuspend(); 260 checkOutputForAllStrategies(); 261 // outputs must be closed after checkOutputForAllStrategies() is executed 262 if (!outputs.isEmpty()) { 263 for (size_t i = 0; i < outputs.size(); i++) { 264 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 265 // close unused outputs after device disconnection or direct outputs that have been 266 // opened by checkOutputsForDevice() to query dynamic parameters 267 if ((state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) || 268 (((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) && 269 (desc->mDirectOpenCount == 0))) { 270 closeOutput(outputs[i]); 271 } 272 } 273 // check again after closing A2DP output to reset mA2dpSuspended if needed 274 checkA2dpSuspend(); 275 } 276 277 updateDevicesAndOutputs(); 278 for (size_t i = 0; i < mOutputs.size(); i++) { 279 // do not force device change on duplicated output because if device is 0, it will 280 // also force a device 0 for the two outputs it is duplicated to which may override 281 // a valid device selection on those outputs. 282 setOutputDevice(mOutputs.keyAt(i), 283 getNewOutputDevice(mOutputs.keyAt(i), true /*fromCache*/), 284 !mOutputs.valueAt(i)->isDuplicated(), 285 0); 286 } 287 288 mpClientInterface->onAudioPortListUpdate(); 289 return NO_ERROR; 290 } // end if is output device 291 292 // handle input devices 293 if (audio_is_input_device(device)) { 294 SortedVector <audio_io_handle_t> inputs; 295 296 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 297 devDesc->mAddress = address; 298 ssize_t index = mAvailableInputDevices.indexOf(devDesc); 299 switch (state) 300 { 301 // handle input device connection 302 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: { 303 if (index >= 0) { 304 ALOGW("setDeviceConnectionState() device already connected: %d", device); 305 return INVALID_OPERATION; 306 } 307 sp<HwModule> module = getModuleForDevice(device); 308 if (module == NULL) { 309 ALOGW("setDeviceConnectionState(): could not find HW module for device %08x", 310 device); 311 return INVALID_OPERATION; 312 } 313 if (checkInputsForDevice(device, state, inputs, address) != NO_ERROR) { 314 return INVALID_OPERATION; 315 } 316 317 index = mAvailableInputDevices.add(devDesc); 318 if (index >= 0) { 319 mAvailableInputDevices[index]->mId = nextUniqueId(); 320 mAvailableInputDevices[index]->mModule = module; 321 } else { 322 return NO_MEMORY; 323 } 324 } break; 325 326 // handle input device disconnection 327 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 328 if (index < 0) { 329 ALOGW("setDeviceConnectionState() device not connected: %d", device); 330 return INVALID_OPERATION; 331 } 332 checkInputsForDevice(device, state, inputs, address); 333 mAvailableInputDevices.remove(devDesc); 334 } break; 335 336 default: 337 ALOGE("setDeviceConnectionState() invalid state: %x", state); 338 return BAD_VALUE; 339 } 340 341 closeAllInputs(); 342 343 mpClientInterface->onAudioPortListUpdate(); 344 return NO_ERROR; 345 } // end if is input device 346 347 ALOGW("setDeviceConnectionState() invalid device: %x", device); 348 return BAD_VALUE; 349} 350 351audio_policy_dev_state_t AudioPolicyManager::getDeviceConnectionState(audio_devices_t device, 352 const char *device_address) 353{ 354 audio_policy_dev_state_t state = AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 355 String8 address = String8(device_address); 356 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 357 devDesc->mAddress = String8(device_address); 358 ssize_t index; 359 DeviceVector *deviceVector; 360 361 if (audio_is_output_device(device)) { 362 deviceVector = &mAvailableOutputDevices; 363 } else if (audio_is_input_device(device)) { 364 deviceVector = &mAvailableInputDevices; 365 } else { 366 ALOGW("getDeviceConnectionState() invalid device type %08x", device); 367 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 368 } 369 370 index = deviceVector->indexOf(devDesc); 371 if (index >= 0) { 372 return AUDIO_POLICY_DEVICE_STATE_AVAILABLE; 373 } else { 374 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 375 } 376} 377 378void AudioPolicyManager::setPhoneState(audio_mode_t state) 379{ 380 ALOGV("setPhoneState() state %d", state); 381 audio_devices_t newDevice = AUDIO_DEVICE_NONE; 382 if (state < 0 || state >= AUDIO_MODE_CNT) { 383 ALOGW("setPhoneState() invalid state %d", state); 384 return; 385 } 386 387 if (state == mPhoneState ) { 388 ALOGW("setPhoneState() setting same state %d", state); 389 return; 390 } 391 392 // if leaving call state, handle special case of active streams 393 // pertaining to sonification strategy see handleIncallSonification() 394 if (isInCall()) { 395 ALOGV("setPhoneState() in call state management: new state is %d", state); 396 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 397 handleIncallSonification((audio_stream_type_t)stream, false, true); 398 } 399 } 400 401 // store previous phone state for management of sonification strategy below 402 int oldState = mPhoneState; 403 mPhoneState = state; 404 bool force = false; 405 406 // are we entering or starting a call 407 if (!isStateInCall(oldState) && isStateInCall(state)) { 408 ALOGV(" Entering call in setPhoneState()"); 409 // force routing command to audio hardware when starting a call 410 // even if no device change is needed 411 force = true; 412 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 413 mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] = 414 sVolumeProfiles[AUDIO_STREAM_VOICE_CALL][j]; 415 } 416 } else if (isStateInCall(oldState) && !isStateInCall(state)) { 417 ALOGV(" Exiting call in setPhoneState()"); 418 // force routing command to audio hardware when exiting a call 419 // even if no device change is needed 420 force = true; 421 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 422 mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] = 423 sVolumeProfiles[AUDIO_STREAM_DTMF][j]; 424 } 425 } else if (isStateInCall(state) && (state != oldState)) { 426 ALOGV(" Switching between telephony and VoIP in setPhoneState()"); 427 // force routing command to audio hardware when switching between telephony and VoIP 428 // even if no device change is needed 429 force = true; 430 } 431 432 // check for device and output changes triggered by new phone state 433 newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 434 checkA2dpSuspend(); 435 checkOutputForAllStrategies(); 436 updateDevicesAndOutputs(); 437 438 sp<AudioOutputDescriptor> hwOutputDesc = mOutputs.valueFor(mPrimaryOutput); 439 440 // force routing command to audio hardware when ending call 441 // even if no device change is needed 442 if (isStateInCall(oldState) && newDevice == AUDIO_DEVICE_NONE) { 443 newDevice = hwOutputDesc->device(); 444 } 445 446 int delayMs = 0; 447 if (isStateInCall(state)) { 448 nsecs_t sysTime = systemTime(); 449 for (size_t i = 0; i < mOutputs.size(); i++) { 450 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 451 // mute media and sonification strategies and delay device switch by the largest 452 // latency of any output where either strategy is active. 453 // This avoid sending the ring tone or music tail into the earpiece or headset. 454 if ((desc->isStrategyActive(STRATEGY_MEDIA, 455 SONIFICATION_HEADSET_MUSIC_DELAY, 456 sysTime) || 457 desc->isStrategyActive(STRATEGY_SONIFICATION, 458 SONIFICATION_HEADSET_MUSIC_DELAY, 459 sysTime)) && 460 (delayMs < (int)desc->mLatency*2)) { 461 delayMs = desc->mLatency*2; 462 } 463 setStrategyMute(STRATEGY_MEDIA, true, mOutputs.keyAt(i)); 464 setStrategyMute(STRATEGY_MEDIA, false, mOutputs.keyAt(i), MUTE_TIME_MS, 465 getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/)); 466 setStrategyMute(STRATEGY_SONIFICATION, true, mOutputs.keyAt(i)); 467 setStrategyMute(STRATEGY_SONIFICATION, false, mOutputs.keyAt(i), MUTE_TIME_MS, 468 getDeviceForStrategy(STRATEGY_SONIFICATION, true /*fromCache*/)); 469 } 470 } 471 472 // change routing is necessary 473 setOutputDevice(mPrimaryOutput, newDevice, force, delayMs); 474 475 // if entering in call state, handle special case of active streams 476 // pertaining to sonification strategy see handleIncallSonification() 477 if (isStateInCall(state)) { 478 ALOGV("setPhoneState() in call state management: new state is %d", state); 479 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 480 handleIncallSonification((audio_stream_type_t)stream, true, true); 481 } 482 } 483 484 // Flag that ringtone volume must be limited to music volume until we exit MODE_RINGTONE 485 if (state == AUDIO_MODE_RINGTONE && 486 isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY)) { 487 mLimitRingtoneVolume = true; 488 } else { 489 mLimitRingtoneVolume = false; 490 } 491} 492 493void AudioPolicyManager::setForceUse(audio_policy_force_use_t usage, 494 audio_policy_forced_cfg_t config) 495{ 496 ALOGV("setForceUse() usage %d, config %d, mPhoneState %d", usage, config, mPhoneState); 497 498 bool forceVolumeReeval = false; 499 switch(usage) { 500 case AUDIO_POLICY_FORCE_FOR_COMMUNICATION: 501 if (config != AUDIO_POLICY_FORCE_SPEAKER && config != AUDIO_POLICY_FORCE_BT_SCO && 502 config != AUDIO_POLICY_FORCE_NONE) { 503 ALOGW("setForceUse() invalid config %d for FOR_COMMUNICATION", config); 504 return; 505 } 506 forceVolumeReeval = true; 507 mForceUse[usage] = config; 508 break; 509 case AUDIO_POLICY_FORCE_FOR_MEDIA: 510 if (config != AUDIO_POLICY_FORCE_HEADPHONES && config != AUDIO_POLICY_FORCE_BT_A2DP && 511 config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 512 config != AUDIO_POLICY_FORCE_ANALOG_DOCK && 513 config != AUDIO_POLICY_FORCE_DIGITAL_DOCK && config != AUDIO_POLICY_FORCE_NONE && 514 config != AUDIO_POLICY_FORCE_NO_BT_A2DP) { 515 ALOGW("setForceUse() invalid config %d for FOR_MEDIA", config); 516 return; 517 } 518 mForceUse[usage] = config; 519 break; 520 case AUDIO_POLICY_FORCE_FOR_RECORD: 521 if (config != AUDIO_POLICY_FORCE_BT_SCO && config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 522 config != AUDIO_POLICY_FORCE_NONE) { 523 ALOGW("setForceUse() invalid config %d for FOR_RECORD", config); 524 return; 525 } 526 mForceUse[usage] = config; 527 break; 528 case AUDIO_POLICY_FORCE_FOR_DOCK: 529 if (config != AUDIO_POLICY_FORCE_NONE && config != AUDIO_POLICY_FORCE_BT_CAR_DOCK && 530 config != AUDIO_POLICY_FORCE_BT_DESK_DOCK && 531 config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 532 config != AUDIO_POLICY_FORCE_ANALOG_DOCK && 533 config != AUDIO_POLICY_FORCE_DIGITAL_DOCK) { 534 ALOGW("setForceUse() invalid config %d for FOR_DOCK", config); 535 } 536 forceVolumeReeval = true; 537 mForceUse[usage] = config; 538 break; 539 case AUDIO_POLICY_FORCE_FOR_SYSTEM: 540 if (config != AUDIO_POLICY_FORCE_NONE && 541 config != AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) { 542 ALOGW("setForceUse() invalid config %d for FOR_SYSTEM", config); 543 } 544 forceVolumeReeval = true; 545 mForceUse[usage] = config; 546 break; 547 default: 548 ALOGW("setForceUse() invalid usage %d", usage); 549 break; 550 } 551 552 // check for device and output changes triggered by new force usage 553 checkA2dpSuspend(); 554 checkOutputForAllStrategies(); 555 updateDevicesAndOutputs(); 556 for (size_t i = 0; i < mOutputs.size(); i++) { 557 audio_io_handle_t output = mOutputs.keyAt(i); 558 audio_devices_t newDevice = getNewOutputDevice(output, true /*fromCache*/); 559 setOutputDevice(output, newDevice, (newDevice != AUDIO_DEVICE_NONE)); 560 if (forceVolumeReeval && (newDevice != AUDIO_DEVICE_NONE)) { 561 applyStreamVolumes(output, newDevice, 0, true); 562 } 563 } 564 565 audio_io_handle_t activeInput = getActiveInput(); 566 if (activeInput != 0) { 567 setInputDevice(activeInput, getNewInputDevice(activeInput)); 568 } 569 570} 571 572audio_policy_forced_cfg_t AudioPolicyManager::getForceUse(audio_policy_force_use_t usage) 573{ 574 return mForceUse[usage]; 575} 576 577void AudioPolicyManager::setSystemProperty(const char* property, const char* value) 578{ 579 ALOGV("setSystemProperty() property %s, value %s", property, value); 580} 581 582// Find a direct output profile compatible with the parameters passed, even if the input flags do 583// not explicitly request a direct output 584sp<AudioPolicyManager::IOProfile> AudioPolicyManager::getProfileForDirectOutput( 585 audio_devices_t device, 586 uint32_t samplingRate, 587 audio_format_t format, 588 audio_channel_mask_t channelMask, 589 audio_output_flags_t flags) 590{ 591 for (size_t i = 0; i < mHwModules.size(); i++) { 592 if (mHwModules[i]->mHandle == 0) { 593 continue; 594 } 595 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) { 596 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 597 bool found = false; 598 if (flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) { 599 if (profile->isCompatibleProfile(device, samplingRate, format, 600 channelMask, 601 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)) { 602 found = true; 603 } 604 } else { 605 if (profile->isCompatibleProfile(device, samplingRate, format, 606 channelMask, 607 AUDIO_OUTPUT_FLAG_DIRECT)) { 608 found = true; 609 } 610 } 611 if (found && (mAvailableOutputDevices.types() & profile->mSupportedDevices.types())) { 612 return profile; 613 } 614 } 615 } 616 return 0; 617} 618 619audio_io_handle_t AudioPolicyManager::getOutput(audio_stream_type_t stream, 620 uint32_t samplingRate, 621 audio_format_t format, 622 audio_channel_mask_t channelMask, 623 audio_output_flags_t flags, 624 const audio_offload_info_t *offloadInfo) 625{ 626 627 routing_strategy strategy = getStrategy(stream); 628 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 629 ALOGV("getOutput() device %d, stream %d, samplingRate %d, format %x, channelMask %x, flags %x", 630 device, stream, samplingRate, format, channelMask, flags); 631 632 return getOutputForDevice(device, stream, samplingRate,format, channelMask, flags, 633 offloadInfo); 634} 635 636audio_io_handle_t AudioPolicyManager::getOutputForAttr(const audio_attributes_t *attr, 637 uint32_t samplingRate, 638 audio_format_t format, 639 audio_channel_mask_t channelMask, 640 audio_output_flags_t flags, 641 const audio_offload_info_t *offloadInfo) 642{ 643 if (attr == NULL) { 644 ALOGE("getOutputForAttr() called with NULL audio attributes"); 645 return 0; 646 } 647 ALOGV("getOutputForAttr() usage=%d, content=%d, tag=%s", 648 attr->usage, attr->content_type, attr->tags); 649 650 // TODO this is where filtering for custom policies (rerouting, dynamic sources) will go 651 routing_strategy strategy = (routing_strategy) getStrategyForAttr(attr); 652 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 653 ALOGV("getOutputForAttr() device %d, samplingRate %d, format %x, channelMask %x, flags %x", 654 device, samplingRate, format, channelMask, flags); 655 656 audio_stream_type_t stream = streamTypefromAttributesInt(attr); 657 return getOutputForDevice(device, stream, samplingRate, format, channelMask, flags, 658 offloadInfo); 659} 660 661audio_io_handle_t AudioPolicyManager::getOutputForDevice( 662 audio_devices_t device, 663 audio_stream_type_t stream, 664 uint32_t samplingRate, 665 audio_format_t format, 666 audio_channel_mask_t channelMask, 667 audio_output_flags_t flags, 668 const audio_offload_info_t *offloadInfo) 669{ 670 audio_io_handle_t output = 0; 671 uint32_t latency = 0; 672 673#ifdef AUDIO_POLICY_TEST 674 if (mCurOutput != 0) { 675 ALOGV("getOutput() test output mCurOutput %d, samplingRate %d, format %d, channelMask %x, mDirectOutput %d", 676 mCurOutput, mTestSamplingRate, mTestFormat, mTestChannels, mDirectOutput); 677 678 if (mTestOutputs[mCurOutput] == 0) { 679 ALOGV("getOutput() opening test output"); 680 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(NULL); 681 outputDesc->mDevice = mTestDevice; 682 outputDesc->mSamplingRate = mTestSamplingRate; 683 outputDesc->mFormat = mTestFormat; 684 outputDesc->mChannelMask = mTestChannels; 685 outputDesc->mLatency = mTestLatencyMs; 686 outputDesc->mFlags = 687 (audio_output_flags_t)(mDirectOutput ? AUDIO_OUTPUT_FLAG_DIRECT : 0); 688 outputDesc->mRefCount[stream] = 0; 689 mTestOutputs[mCurOutput] = mpClientInterface->openOutput(0, &outputDesc->mDevice, 690 &outputDesc->mSamplingRate, 691 &outputDesc->mFormat, 692 &outputDesc->mChannelMask, 693 &outputDesc->mLatency, 694 outputDesc->mFlags, 695 offloadInfo); 696 if (mTestOutputs[mCurOutput]) { 697 AudioParameter outputCmd = AudioParameter(); 698 outputCmd.addInt(String8("set_id"),mCurOutput); 699 mpClientInterface->setParameters(mTestOutputs[mCurOutput],outputCmd.toString()); 700 addOutput(mTestOutputs[mCurOutput], outputDesc); 701 } 702 } 703 return mTestOutputs[mCurOutput]; 704 } 705#endif //AUDIO_POLICY_TEST 706 707 // open a direct output if required by specified parameters 708 //force direct flag if offload flag is set: offloading implies a direct output stream 709 // and all common behaviors are driven by checking only the direct flag 710 // this should normally be set appropriately in the policy configuration file 711 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 712 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 713 } 714 715 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 716 // creating an offloaded track and tearing it down immediately after start when audioflinger 717 // detects there is an active non offloadable effect. 718 // FIXME: We should check the audio session here but we do not have it in this context. 719 // This may prevent offloading in rare situations where effects are left active by apps 720 // in the background. 721 sp<IOProfile> profile; 722 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) || 723 !isNonOffloadableEffectEnabled()) { 724 profile = getProfileForDirectOutput(device, 725 samplingRate, 726 format, 727 channelMask, 728 (audio_output_flags_t)flags); 729 } 730 731 if (profile != 0) { 732 sp<AudioOutputDescriptor> outputDesc = NULL; 733 734 for (size_t i = 0; i < mOutputs.size(); i++) { 735 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 736 if (!desc->isDuplicated() && (profile == desc->mProfile)) { 737 outputDesc = desc; 738 // reuse direct output if currently open and configured with same parameters 739 if ((samplingRate == outputDesc->mSamplingRate) && 740 (format == outputDesc->mFormat) && 741 (channelMask == outputDesc->mChannelMask)) { 742 outputDesc->mDirectOpenCount++; 743 ALOGV("getOutput() reusing direct output %d", mOutputs.keyAt(i)); 744 return mOutputs.keyAt(i); 745 } 746 } 747 } 748 // close direct output if currently open and configured with different parameters 749 if (outputDesc != NULL) { 750 closeOutput(outputDesc->mIoHandle); 751 } 752 outputDesc = new AudioOutputDescriptor(profile); 753 outputDesc->mDevice = device; 754 outputDesc->mSamplingRate = samplingRate; 755 outputDesc->mFormat = format; 756 outputDesc->mChannelMask = channelMask; 757 outputDesc->mLatency = 0; 758 outputDesc->mFlags =(audio_output_flags_t) (outputDesc->mFlags | flags); 759 outputDesc->mRefCount[stream] = 0; 760 outputDesc->mStopTime[stream] = 0; 761 outputDesc->mDirectOpenCount = 1; 762 output = mpClientInterface->openOutput(profile->mModule->mHandle, 763 &outputDesc->mDevice, 764 &outputDesc->mSamplingRate, 765 &outputDesc->mFormat, 766 &outputDesc->mChannelMask, 767 &outputDesc->mLatency, 768 outputDesc->mFlags, 769 offloadInfo); 770 771 // only accept an output with the requested parameters 772 if (output == 0 || 773 (samplingRate != 0 && samplingRate != outputDesc->mSamplingRate) || 774 (format != AUDIO_FORMAT_DEFAULT && format != outputDesc->mFormat) || 775 (channelMask != 0 && channelMask != outputDesc->mChannelMask)) { 776 ALOGV("getOutput() failed opening direct output: output %d samplingRate %d %d," 777 "format %d %d, channelMask %04x %04x", output, samplingRate, 778 outputDesc->mSamplingRate, format, outputDesc->mFormat, channelMask, 779 outputDesc->mChannelMask); 780 if (output != 0) { 781 mpClientInterface->closeOutput(output); 782 } 783 return 0; 784 } 785 audio_io_handle_t srcOutput = getOutputForEffect(); 786 addOutput(output, outputDesc); 787 audio_io_handle_t dstOutput = getOutputForEffect(); 788 if (dstOutput == output) { 789 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, srcOutput, dstOutput); 790 } 791 mPreviousOutputs = mOutputs; 792 ALOGV("getOutput() returns new direct output %d", output); 793 mpClientInterface->onAudioPortListUpdate(); 794 return output; 795 } 796 797 // ignoring channel mask due to downmix capability in mixer 798 799 // open a non direct output 800 801 // for non direct outputs, only PCM is supported 802 if (audio_is_linear_pcm(format)) { 803 // get which output is suitable for the specified stream. The actual 804 // routing change will happen when startOutput() will be called 805 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(device, mOutputs); 806 807 output = selectOutput(outputs, flags); 808 } 809 ALOGW_IF((output == 0), "getOutput() could not find output for stream %d, samplingRate %d," 810 "format %d, channels %x, flags %x", stream, samplingRate, format, channelMask, flags); 811 812 ALOGV("getOutput() returns output %d", output); 813 814 return output; 815} 816 817audio_io_handle_t AudioPolicyManager::selectOutput(const SortedVector<audio_io_handle_t>& outputs, 818 audio_output_flags_t flags) 819{ 820 // select one output among several that provide a path to a particular device or set of 821 // devices (the list was previously build by getOutputsForDevice()). 822 // The priority is as follows: 823 // 1: the output with the highest number of requested policy flags 824 // 2: the primary output 825 // 3: the first output in the list 826 827 if (outputs.size() == 0) { 828 return 0; 829 } 830 if (outputs.size() == 1) { 831 return outputs[0]; 832 } 833 834 int maxCommonFlags = 0; 835 audio_io_handle_t outputFlags = 0; 836 audio_io_handle_t outputPrimary = 0; 837 838 for (size_t i = 0; i < outputs.size(); i++) { 839 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 840 if (!outputDesc->isDuplicated()) { 841 int commonFlags = popcount(outputDesc->mProfile->mFlags & flags); 842 if (commonFlags > maxCommonFlags) { 843 outputFlags = outputs[i]; 844 maxCommonFlags = commonFlags; 845 ALOGV("selectOutput() commonFlags for output %d, %04x", outputs[i], commonFlags); 846 } 847 if (outputDesc->mProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 848 outputPrimary = outputs[i]; 849 } 850 } 851 } 852 853 if (outputFlags != 0) { 854 return outputFlags; 855 } 856 if (outputPrimary != 0) { 857 return outputPrimary; 858 } 859 860 return outputs[0]; 861} 862 863status_t AudioPolicyManager::startOutput(audio_io_handle_t output, 864 audio_stream_type_t stream, 865 int session) 866{ 867 ALOGV("startOutput() output %d, stream %d, session %d", output, stream, session); 868 ssize_t index = mOutputs.indexOfKey(output); 869 if (index < 0) { 870 ALOGW("startOutput() unknown output %d", output); 871 return BAD_VALUE; 872 } 873 874 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 875 876 // increment usage count for this stream on the requested output: 877 // NOTE that the usage count is the same for duplicated output and hardware output which is 878 // necessary for a correct control of hardware output routing by startOutput() and stopOutput() 879 outputDesc->changeRefCount(stream, 1); 880 881 if (outputDesc->mRefCount[stream] == 1) { 882 audio_devices_t newDevice = getNewOutputDevice(output, false /*fromCache*/); 883 routing_strategy strategy = getStrategy(stream); 884 bool shouldWait = (strategy == STRATEGY_SONIFICATION) || 885 (strategy == STRATEGY_SONIFICATION_RESPECTFUL); 886 uint32_t waitMs = 0; 887 bool force = false; 888 for (size_t i = 0; i < mOutputs.size(); i++) { 889 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 890 if (desc != outputDesc) { 891 // force a device change if any other output is managed by the same hw 892 // module and has a current device selection that differs from selected device. 893 // In this case, the audio HAL must receive the new device selection so that it can 894 // change the device currently selected by the other active output. 895 if (outputDesc->sharesHwModuleWith(desc) && 896 desc->device() != newDevice) { 897 force = true; 898 } 899 // wait for audio on other active outputs to be presented when starting 900 // a notification so that audio focus effect can propagate. 901 uint32_t latency = desc->latency(); 902 if (shouldWait && desc->isActive(latency * 2) && (waitMs < latency)) { 903 waitMs = latency; 904 } 905 } 906 } 907 uint32_t muteWaitMs = setOutputDevice(output, newDevice, force); 908 909 // handle special case for sonification while in call 910 if (isInCall()) { 911 handleIncallSonification(stream, true, false); 912 } 913 914 // apply volume rules for current stream and device if necessary 915 checkAndSetVolume(stream, 916 mStreams[stream].getVolumeIndex(newDevice), 917 output, 918 newDevice); 919 920 // update the outputs if starting an output with a stream that can affect notification 921 // routing 922 handleNotificationRoutingForStream(stream); 923 if (waitMs > muteWaitMs) { 924 usleep((waitMs - muteWaitMs) * 2 * 1000); 925 } 926 } 927 return NO_ERROR; 928} 929 930 931status_t AudioPolicyManager::stopOutput(audio_io_handle_t output, 932 audio_stream_type_t stream, 933 int session) 934{ 935 ALOGV("stopOutput() output %d, stream %d, session %d", output, stream, session); 936 ssize_t index = mOutputs.indexOfKey(output); 937 if (index < 0) { 938 ALOGW("stopOutput() unknown output %d", output); 939 return BAD_VALUE; 940 } 941 942 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 943 944 // handle special case for sonification while in call 945 if (isInCall()) { 946 handleIncallSonification(stream, false, false); 947 } 948 949 if (outputDesc->mRefCount[stream] > 0) { 950 // decrement usage count of this stream on the output 951 outputDesc->changeRefCount(stream, -1); 952 // store time at which the stream was stopped - see isStreamActive() 953 if (outputDesc->mRefCount[stream] == 0) { 954 outputDesc->mStopTime[stream] = systemTime(); 955 audio_devices_t newDevice = getNewOutputDevice(output, false /*fromCache*/); 956 // delay the device switch by twice the latency because stopOutput() is executed when 957 // the track stop() command is received and at that time the audio track buffer can 958 // still contain data that needs to be drained. The latency only covers the audio HAL 959 // and kernel buffers. Also the latency does not always include additional delay in the 960 // audio path (audio DSP, CODEC ...) 961 setOutputDevice(output, newDevice, false, outputDesc->mLatency*2); 962 963 // force restoring the device selection on other active outputs if it differs from the 964 // one being selected for this output 965 for (size_t i = 0; i < mOutputs.size(); i++) { 966 audio_io_handle_t curOutput = mOutputs.keyAt(i); 967 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 968 if (curOutput != output && 969 desc->isActive() && 970 outputDesc->sharesHwModuleWith(desc) && 971 (newDevice != desc->device())) { 972 setOutputDevice(curOutput, 973 getNewOutputDevice(curOutput, false /*fromCache*/), 974 true, 975 outputDesc->mLatency*2); 976 } 977 } 978 // update the outputs if stopping one with a stream that can affect notification routing 979 handleNotificationRoutingForStream(stream); 980 } 981 return NO_ERROR; 982 } else { 983 ALOGW("stopOutput() refcount is already 0 for output %d", output); 984 return INVALID_OPERATION; 985 } 986} 987 988void AudioPolicyManager::releaseOutput(audio_io_handle_t output) 989{ 990 ALOGV("releaseOutput() %d", output); 991 ssize_t index = mOutputs.indexOfKey(output); 992 if (index < 0) { 993 ALOGW("releaseOutput() releasing unknown output %d", output); 994 return; 995 } 996 997#ifdef AUDIO_POLICY_TEST 998 int testIndex = testOutputIndex(output); 999 if (testIndex != 0) { 1000 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1001 if (outputDesc->isActive()) { 1002 mpClientInterface->closeOutput(output); 1003 mOutputs.removeItem(output); 1004 mTestOutputs[testIndex] = 0; 1005 } 1006 return; 1007 } 1008#endif //AUDIO_POLICY_TEST 1009 1010 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(index); 1011 if (desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 1012 if (desc->mDirectOpenCount <= 0) { 1013 ALOGW("releaseOutput() invalid open count %d for output %d", 1014 desc->mDirectOpenCount, output); 1015 return; 1016 } 1017 if (--desc->mDirectOpenCount == 0) { 1018 closeOutput(output); 1019 // If effects where present on the output, audioflinger moved them to the primary 1020 // output by default: move them back to the appropriate output. 1021 audio_io_handle_t dstOutput = getOutputForEffect(); 1022 if (dstOutput != mPrimaryOutput) { 1023 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, mPrimaryOutput, dstOutput); 1024 } 1025 mpClientInterface->onAudioPortListUpdate(); 1026 } 1027 } 1028} 1029 1030 1031audio_io_handle_t AudioPolicyManager::getInput(audio_source_t inputSource, 1032 uint32_t samplingRate, 1033 audio_format_t format, 1034 audio_channel_mask_t channelMask, 1035 audio_in_acoustics_t acoustics) 1036{ 1037 audio_io_handle_t input = 0; 1038 audio_devices_t device = getDeviceForInputSource(inputSource); 1039 1040 ALOGV("getInput() inputSource %d, samplingRate %d, format %d, channelMask %x, acoustics %x", 1041 inputSource, samplingRate, format, channelMask, acoustics); 1042 1043 if (device == AUDIO_DEVICE_NONE) { 1044 ALOGW("getInput() could not find device for inputSource %d", inputSource); 1045 return 0; 1046 } 1047 1048 // adapt channel selection to input source 1049 switch(inputSource) { 1050 case AUDIO_SOURCE_VOICE_UPLINK: 1051 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK; 1052 break; 1053 case AUDIO_SOURCE_VOICE_DOWNLINK: 1054 channelMask = AUDIO_CHANNEL_IN_VOICE_DNLINK; 1055 break; 1056 case AUDIO_SOURCE_VOICE_CALL: 1057 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK | AUDIO_CHANNEL_IN_VOICE_DNLINK; 1058 break; 1059 default: 1060 break; 1061 } 1062 1063 sp<IOProfile> profile = getInputProfile(device, 1064 samplingRate, 1065 format, 1066 channelMask); 1067 if (profile == 0) { 1068 ALOGW("getInput() could not find profile for device %04x, samplingRate %d, format %d, " 1069 "channelMask %04x", 1070 device, samplingRate, format, channelMask); 1071 return 0; 1072 } 1073 1074 if (profile->mModule->mHandle == 0) { 1075 ALOGE("getInput(): HW module %s not opened", profile->mModule->mName); 1076 return 0; 1077 } 1078 1079 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(profile); 1080 1081 inputDesc->mInputSource = inputSource; 1082 inputDesc->mDevice = device; 1083 inputDesc->mSamplingRate = samplingRate; 1084 inputDesc->mFormat = format; 1085 inputDesc->mChannelMask = channelMask; 1086 inputDesc->mRefCount = 0; 1087 input = mpClientInterface->openInput(profile->mModule->mHandle, 1088 &inputDesc->mDevice, 1089 &inputDesc->mSamplingRate, 1090 &inputDesc->mFormat, 1091 &inputDesc->mChannelMask); 1092 1093 // only accept input with the exact requested set of parameters 1094 if (input == 0 || 1095 (samplingRate != inputDesc->mSamplingRate) || 1096 (format != inputDesc->mFormat) || 1097 (channelMask != inputDesc->mChannelMask)) { 1098 ALOGI("getInput() failed opening input: samplingRate %d, format %d, channelMask %x", 1099 samplingRate, format, channelMask); 1100 if (input != 0) { 1101 mpClientInterface->closeInput(input); 1102 } 1103 return 0; 1104 } 1105 addInput(input, inputDesc); 1106 mpClientInterface->onAudioPortListUpdate(); 1107 return input; 1108} 1109 1110status_t AudioPolicyManager::startInput(audio_io_handle_t input) 1111{ 1112 ALOGV("startInput() input %d", input); 1113 ssize_t index = mInputs.indexOfKey(input); 1114 if (index < 0) { 1115 ALOGW("startInput() unknown input %d", input); 1116 return BAD_VALUE; 1117 } 1118 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1119 1120#ifdef AUDIO_POLICY_TEST 1121 if (mTestInput == 0) 1122#endif //AUDIO_POLICY_TEST 1123 { 1124 // refuse 2 active AudioRecord clients at the same time except if the active input 1125 // uses AUDIO_SOURCE_HOTWORD in which case it is closed. 1126 audio_io_handle_t activeInput = getActiveInput(); 1127 if (!isVirtualInputDevice(inputDesc->mDevice) && activeInput != 0) { 1128 sp<AudioInputDescriptor> activeDesc = mInputs.valueFor(activeInput); 1129 if (activeDesc->mInputSource == AUDIO_SOURCE_HOTWORD) { 1130 ALOGW("startInput() preempting already started low-priority input %d", activeInput); 1131 stopInput(activeInput); 1132 releaseInput(activeInput); 1133 } else { 1134 ALOGW("startInput() input %d failed: other input already started", input); 1135 return INVALID_OPERATION; 1136 } 1137 } 1138 } 1139 1140 setInputDevice(input, getNewInputDevice(input), true /* force */); 1141 1142 // automatically enable the remote submix output when input is started 1143 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1144 setDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1145 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, AUDIO_REMOTE_SUBMIX_DEVICE_ADDRESS); 1146 } 1147 1148 ALOGV("AudioPolicyManager::startInput() input source = %d", inputDesc->mInputSource); 1149 1150 inputDesc->mRefCount = 1; 1151 return NO_ERROR; 1152} 1153 1154status_t AudioPolicyManager::stopInput(audio_io_handle_t input) 1155{ 1156 ALOGV("stopInput() input %d", input); 1157 ssize_t index = mInputs.indexOfKey(input); 1158 if (index < 0) { 1159 ALOGW("stopInput() unknown input %d", input); 1160 return BAD_VALUE; 1161 } 1162 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1163 1164 if (inputDesc->mRefCount == 0) { 1165 ALOGW("stopInput() input %d already stopped", input); 1166 return INVALID_OPERATION; 1167 } else { 1168 // automatically disable the remote submix output when input is stopped 1169 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1170 setDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1171 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, AUDIO_REMOTE_SUBMIX_DEVICE_ADDRESS); 1172 } 1173 1174 resetInputDevice(input); 1175 inputDesc->mRefCount = 0; 1176 return NO_ERROR; 1177 } 1178} 1179 1180void AudioPolicyManager::releaseInput(audio_io_handle_t input) 1181{ 1182 ALOGV("releaseInput() %d", input); 1183 ssize_t index = mInputs.indexOfKey(input); 1184 if (index < 0) { 1185 ALOGW("releaseInput() releasing unknown input %d", input); 1186 return; 1187 } 1188 mpClientInterface->closeInput(input); 1189 mInputs.removeItem(input); 1190 nextAudioPortGeneration(); 1191 mpClientInterface->onAudioPortListUpdate(); 1192 ALOGV("releaseInput() exit"); 1193} 1194 1195void AudioPolicyManager::closeAllInputs() { 1196 for(size_t input_index = 0; input_index < mInputs.size(); input_index++) { 1197 mpClientInterface->closeInput(mInputs.keyAt(input_index)); 1198 } 1199 mInputs.clear(); 1200 nextAudioPortGeneration(); 1201} 1202 1203void AudioPolicyManager::initStreamVolume(audio_stream_type_t stream, 1204 int indexMin, 1205 int indexMax) 1206{ 1207 ALOGV("initStreamVolume() stream %d, min %d, max %d", stream , indexMin, indexMax); 1208 if (indexMin < 0 || indexMin >= indexMax) { 1209 ALOGW("initStreamVolume() invalid index limits for stream %d, min %d, max %d", stream , indexMin, indexMax); 1210 return; 1211 } 1212 mStreams[stream].mIndexMin = indexMin; 1213 mStreams[stream].mIndexMax = indexMax; 1214} 1215 1216status_t AudioPolicyManager::setStreamVolumeIndex(audio_stream_type_t stream, 1217 int index, 1218 audio_devices_t device) 1219{ 1220 1221 if ((index < mStreams[stream].mIndexMin) || (index > mStreams[stream].mIndexMax)) { 1222 return BAD_VALUE; 1223 } 1224 if (!audio_is_output_device(device)) { 1225 return BAD_VALUE; 1226 } 1227 1228 // Force max volume if stream cannot be muted 1229 if (!mStreams[stream].mCanBeMuted) index = mStreams[stream].mIndexMax; 1230 1231 ALOGV("setStreamVolumeIndex() stream %d, device %04x, index %d", 1232 stream, device, index); 1233 1234 // if device is AUDIO_DEVICE_OUT_DEFAULT set default value and 1235 // clear all device specific values 1236 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1237 mStreams[stream].mIndexCur.clear(); 1238 } 1239 mStreams[stream].mIndexCur.add(device, index); 1240 1241 // compute and apply stream volume on all outputs according to connected device 1242 status_t status = NO_ERROR; 1243 for (size_t i = 0; i < mOutputs.size(); i++) { 1244 audio_devices_t curDevice = 1245 getDeviceForVolume(mOutputs.valueAt(i)->device()); 1246 if ((device == AUDIO_DEVICE_OUT_DEFAULT) || (device == curDevice)) { 1247 status_t volStatus = checkAndSetVolume(stream, index, mOutputs.keyAt(i), curDevice); 1248 if (volStatus != NO_ERROR) { 1249 status = volStatus; 1250 } 1251 } 1252 } 1253 return status; 1254} 1255 1256status_t AudioPolicyManager::getStreamVolumeIndex(audio_stream_type_t stream, 1257 int *index, 1258 audio_devices_t device) 1259{ 1260 if (index == NULL) { 1261 return BAD_VALUE; 1262 } 1263 if (!audio_is_output_device(device)) { 1264 return BAD_VALUE; 1265 } 1266 // if device is AUDIO_DEVICE_OUT_DEFAULT, return volume for device corresponding to 1267 // the strategy the stream belongs to. 1268 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1269 device = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1270 } 1271 device = getDeviceForVolume(device); 1272 1273 *index = mStreams[stream].getVolumeIndex(device); 1274 ALOGV("getStreamVolumeIndex() stream %d device %08x index %d", stream, device, *index); 1275 return NO_ERROR; 1276} 1277 1278audio_io_handle_t AudioPolicyManager::selectOutputForEffects( 1279 const SortedVector<audio_io_handle_t>& outputs) 1280{ 1281 // select one output among several suitable for global effects. 1282 // The priority is as follows: 1283 // 1: An offloaded output. If the effect ends up not being offloadable, 1284 // AudioFlinger will invalidate the track and the offloaded output 1285 // will be closed causing the effect to be moved to a PCM output. 1286 // 2: A deep buffer output 1287 // 3: the first output in the list 1288 1289 if (outputs.size() == 0) { 1290 return 0; 1291 } 1292 1293 audio_io_handle_t outputOffloaded = 0; 1294 audio_io_handle_t outputDeepBuffer = 0; 1295 1296 for (size_t i = 0; i < outputs.size(); i++) { 1297 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 1298 ALOGV("selectOutputForEffects outputs[%zu] flags %x", i, desc->mFlags); 1299 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1300 outputOffloaded = outputs[i]; 1301 } 1302 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) != 0) { 1303 outputDeepBuffer = outputs[i]; 1304 } 1305 } 1306 1307 ALOGV("selectOutputForEffects outputOffloaded %d outputDeepBuffer %d", 1308 outputOffloaded, outputDeepBuffer); 1309 if (outputOffloaded != 0) { 1310 return outputOffloaded; 1311 } 1312 if (outputDeepBuffer != 0) { 1313 return outputDeepBuffer; 1314 } 1315 1316 return outputs[0]; 1317} 1318 1319audio_io_handle_t AudioPolicyManager::getOutputForEffect(const effect_descriptor_t *desc) 1320{ 1321 // apply simple rule where global effects are attached to the same output as MUSIC streams 1322 1323 routing_strategy strategy = getStrategy(AUDIO_STREAM_MUSIC); 1324 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 1325 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(device, mOutputs); 1326 1327 audio_io_handle_t output = selectOutputForEffects(dstOutputs); 1328 ALOGV("getOutputForEffect() got output %d for fx %s flags %x", 1329 output, (desc == NULL) ? "unspecified" : desc->name, (desc == NULL) ? 0 : desc->flags); 1330 1331 return output; 1332} 1333 1334status_t AudioPolicyManager::registerEffect(const effect_descriptor_t *desc, 1335 audio_io_handle_t io, 1336 uint32_t strategy, 1337 int session, 1338 int id) 1339{ 1340 ssize_t index = mOutputs.indexOfKey(io); 1341 if (index < 0) { 1342 index = mInputs.indexOfKey(io); 1343 if (index < 0) { 1344 ALOGW("registerEffect() unknown io %d", io); 1345 return INVALID_OPERATION; 1346 } 1347 } 1348 1349 if (mTotalEffectsMemory + desc->memoryUsage > getMaxEffectsMemory()) { 1350 ALOGW("registerEffect() memory limit exceeded for Fx %s, Memory %d KB", 1351 desc->name, desc->memoryUsage); 1352 return INVALID_OPERATION; 1353 } 1354 mTotalEffectsMemory += desc->memoryUsage; 1355 ALOGV("registerEffect() effect %s, io %d, strategy %d session %d id %d", 1356 desc->name, io, strategy, session, id); 1357 ALOGV("registerEffect() memory %d, total memory %d", desc->memoryUsage, mTotalEffectsMemory); 1358 1359 sp<EffectDescriptor> effectDesc = new EffectDescriptor(); 1360 memcpy (&effectDesc->mDesc, desc, sizeof(effect_descriptor_t)); 1361 effectDesc->mIo = io; 1362 effectDesc->mStrategy = (routing_strategy)strategy; 1363 effectDesc->mSession = session; 1364 effectDesc->mEnabled = false; 1365 1366 mEffects.add(id, effectDesc); 1367 1368 return NO_ERROR; 1369} 1370 1371status_t AudioPolicyManager::unregisterEffect(int id) 1372{ 1373 ssize_t index = mEffects.indexOfKey(id); 1374 if (index < 0) { 1375 ALOGW("unregisterEffect() unknown effect ID %d", id); 1376 return INVALID_OPERATION; 1377 } 1378 1379 sp<EffectDescriptor> effectDesc = mEffects.valueAt(index); 1380 1381 setEffectEnabled(effectDesc, false); 1382 1383 if (mTotalEffectsMemory < effectDesc->mDesc.memoryUsage) { 1384 ALOGW("unregisterEffect() memory %d too big for total %d", 1385 effectDesc->mDesc.memoryUsage, mTotalEffectsMemory); 1386 effectDesc->mDesc.memoryUsage = mTotalEffectsMemory; 1387 } 1388 mTotalEffectsMemory -= effectDesc->mDesc.memoryUsage; 1389 ALOGV("unregisterEffect() effect %s, ID %d, memory %d total memory %d", 1390 effectDesc->mDesc.name, id, effectDesc->mDesc.memoryUsage, mTotalEffectsMemory); 1391 1392 mEffects.removeItem(id); 1393 1394 return NO_ERROR; 1395} 1396 1397status_t AudioPolicyManager::setEffectEnabled(int id, bool enabled) 1398{ 1399 ssize_t index = mEffects.indexOfKey(id); 1400 if (index < 0) { 1401 ALOGW("unregisterEffect() unknown effect ID %d", id); 1402 return INVALID_OPERATION; 1403 } 1404 1405 return setEffectEnabled(mEffects.valueAt(index), enabled); 1406} 1407 1408status_t AudioPolicyManager::setEffectEnabled(const sp<EffectDescriptor>& effectDesc, bool enabled) 1409{ 1410 if (enabled == effectDesc->mEnabled) { 1411 ALOGV("setEffectEnabled(%s) effect already %s", 1412 enabled?"true":"false", enabled?"enabled":"disabled"); 1413 return INVALID_OPERATION; 1414 } 1415 1416 if (enabled) { 1417 if (mTotalEffectsCpuLoad + effectDesc->mDesc.cpuLoad > getMaxEffectsCpuLoad()) { 1418 ALOGW("setEffectEnabled(true) CPU Load limit exceeded for Fx %s, CPU %f MIPS", 1419 effectDesc->mDesc.name, (float)effectDesc->mDesc.cpuLoad/10); 1420 return INVALID_OPERATION; 1421 } 1422 mTotalEffectsCpuLoad += effectDesc->mDesc.cpuLoad; 1423 ALOGV("setEffectEnabled(true) total CPU %d", mTotalEffectsCpuLoad); 1424 } else { 1425 if (mTotalEffectsCpuLoad < effectDesc->mDesc.cpuLoad) { 1426 ALOGW("setEffectEnabled(false) CPU load %d too high for total %d", 1427 effectDesc->mDesc.cpuLoad, mTotalEffectsCpuLoad); 1428 effectDesc->mDesc.cpuLoad = mTotalEffectsCpuLoad; 1429 } 1430 mTotalEffectsCpuLoad -= effectDesc->mDesc.cpuLoad; 1431 ALOGV("setEffectEnabled(false) total CPU %d", mTotalEffectsCpuLoad); 1432 } 1433 effectDesc->mEnabled = enabled; 1434 return NO_ERROR; 1435} 1436 1437bool AudioPolicyManager::isNonOffloadableEffectEnabled() 1438{ 1439 for (size_t i = 0; i < mEffects.size(); i++) { 1440 sp<EffectDescriptor> effectDesc = mEffects.valueAt(i); 1441 if (effectDesc->mEnabled && (effectDesc->mStrategy == STRATEGY_MEDIA) && 1442 ((effectDesc->mDesc.flags & EFFECT_FLAG_OFFLOAD_SUPPORTED) == 0)) { 1443 ALOGV("isNonOffloadableEffectEnabled() non offloadable effect %s enabled on session %d", 1444 effectDesc->mDesc.name, effectDesc->mSession); 1445 return true; 1446 } 1447 } 1448 return false; 1449} 1450 1451bool AudioPolicyManager::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const 1452{ 1453 nsecs_t sysTime = systemTime(); 1454 for (size_t i = 0; i < mOutputs.size(); i++) { 1455 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 1456 if (outputDesc->isStreamActive(stream, inPastMs, sysTime)) { 1457 return true; 1458 } 1459 } 1460 return false; 1461} 1462 1463bool AudioPolicyManager::isStreamActiveRemotely(audio_stream_type_t stream, 1464 uint32_t inPastMs) const 1465{ 1466 nsecs_t sysTime = systemTime(); 1467 for (size_t i = 0; i < mOutputs.size(); i++) { 1468 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 1469 if (((outputDesc->device() & APM_AUDIO_OUT_DEVICE_REMOTE_ALL) != 0) && 1470 outputDesc->isStreamActive(stream, inPastMs, sysTime)) { 1471 return true; 1472 } 1473 } 1474 return false; 1475} 1476 1477bool AudioPolicyManager::isSourceActive(audio_source_t source) const 1478{ 1479 for (size_t i = 0; i < mInputs.size(); i++) { 1480 const sp<AudioInputDescriptor> inputDescriptor = mInputs.valueAt(i); 1481 if ((inputDescriptor->mInputSource == (int)source || 1482 (source == AUDIO_SOURCE_VOICE_RECOGNITION && 1483 inputDescriptor->mInputSource == AUDIO_SOURCE_HOTWORD)) 1484 && (inputDescriptor->mRefCount > 0)) { 1485 return true; 1486 } 1487 } 1488 return false; 1489} 1490 1491 1492status_t AudioPolicyManager::dump(int fd) 1493{ 1494 const size_t SIZE = 256; 1495 char buffer[SIZE]; 1496 String8 result; 1497 1498 snprintf(buffer, SIZE, "\nAudioPolicyManager Dump: %p\n", this); 1499 result.append(buffer); 1500 1501 snprintf(buffer, SIZE, " Primary Output: %d\n", mPrimaryOutput); 1502 result.append(buffer); 1503 snprintf(buffer, SIZE, " Phone state: %d\n", mPhoneState); 1504 result.append(buffer); 1505 snprintf(buffer, SIZE, " Force use for communications %d\n", 1506 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]); 1507 result.append(buffer); 1508 snprintf(buffer, SIZE, " Force use for media %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA]); 1509 result.append(buffer); 1510 snprintf(buffer, SIZE, " Force use for record %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD]); 1511 result.append(buffer); 1512 snprintf(buffer, SIZE, " Force use for dock %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK]); 1513 result.append(buffer); 1514 snprintf(buffer, SIZE, " Force use for system %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM]); 1515 result.append(buffer); 1516 1517 snprintf(buffer, SIZE, " Available output devices:\n"); 1518 result.append(buffer); 1519 write(fd, result.string(), result.size()); 1520 for (size_t i = 0; i < mAvailableOutputDevices.size(); i++) { 1521 mAvailableOutputDevices[i]->dump(fd, 2, i); 1522 } 1523 snprintf(buffer, SIZE, "\n Available input devices:\n"); 1524 write(fd, buffer, strlen(buffer)); 1525 for (size_t i = 0; i < mAvailableInputDevices.size(); i++) { 1526 mAvailableInputDevices[i]->dump(fd, 2, i); 1527 } 1528 1529 snprintf(buffer, SIZE, "\nHW Modules dump:\n"); 1530 write(fd, buffer, strlen(buffer)); 1531 for (size_t i = 0; i < mHwModules.size(); i++) { 1532 snprintf(buffer, SIZE, "- HW Module %zu:\n", i + 1); 1533 write(fd, buffer, strlen(buffer)); 1534 mHwModules[i]->dump(fd); 1535 } 1536 1537 snprintf(buffer, SIZE, "\nOutputs dump:\n"); 1538 write(fd, buffer, strlen(buffer)); 1539 for (size_t i = 0; i < mOutputs.size(); i++) { 1540 snprintf(buffer, SIZE, "- Output %d dump:\n", mOutputs.keyAt(i)); 1541 write(fd, buffer, strlen(buffer)); 1542 mOutputs.valueAt(i)->dump(fd); 1543 } 1544 1545 snprintf(buffer, SIZE, "\nInputs dump:\n"); 1546 write(fd, buffer, strlen(buffer)); 1547 for (size_t i = 0; i < mInputs.size(); i++) { 1548 snprintf(buffer, SIZE, "- Input %d dump:\n", mInputs.keyAt(i)); 1549 write(fd, buffer, strlen(buffer)); 1550 mInputs.valueAt(i)->dump(fd); 1551 } 1552 1553 snprintf(buffer, SIZE, "\nStreams dump:\n"); 1554 write(fd, buffer, strlen(buffer)); 1555 snprintf(buffer, SIZE, 1556 " Stream Can be muted Index Min Index Max Index Cur [device : index]...\n"); 1557 write(fd, buffer, strlen(buffer)); 1558 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 1559 snprintf(buffer, SIZE, " %02zu ", i); 1560 write(fd, buffer, strlen(buffer)); 1561 mStreams[i].dump(fd); 1562 } 1563 1564 snprintf(buffer, SIZE, "\nTotal Effects CPU: %f MIPS, Total Effects memory: %d KB\n", 1565 (float)mTotalEffectsCpuLoad/10, mTotalEffectsMemory); 1566 write(fd, buffer, strlen(buffer)); 1567 1568 snprintf(buffer, SIZE, "Registered effects:\n"); 1569 write(fd, buffer, strlen(buffer)); 1570 for (size_t i = 0; i < mEffects.size(); i++) { 1571 snprintf(buffer, SIZE, "- Effect %d dump:\n", mEffects.keyAt(i)); 1572 write(fd, buffer, strlen(buffer)); 1573 mEffects.valueAt(i)->dump(fd); 1574 } 1575 1576 1577 return NO_ERROR; 1578} 1579 1580// This function checks for the parameters which can be offloaded. 1581// This can be enhanced depending on the capability of the DSP and policy 1582// of the system. 1583bool AudioPolicyManager::isOffloadSupported(const audio_offload_info_t& offloadInfo) 1584{ 1585 ALOGV("isOffloadSupported: SR=%u, CM=0x%x, Format=0x%x, StreamType=%d," 1586 " BitRate=%u, duration=%" PRId64 " us, has_video=%d", 1587 offloadInfo.sample_rate, offloadInfo.channel_mask, 1588 offloadInfo.format, 1589 offloadInfo.stream_type, offloadInfo.bit_rate, offloadInfo.duration_us, 1590 offloadInfo.has_video); 1591 1592 // Check if offload has been disabled 1593 char propValue[PROPERTY_VALUE_MAX]; 1594 if (property_get("audio.offload.disable", propValue, "0")) { 1595 if (atoi(propValue) != 0) { 1596 ALOGV("offload disabled by audio.offload.disable=%s", propValue ); 1597 return false; 1598 } 1599 } 1600 1601 // Check if stream type is music, then only allow offload as of now. 1602 if (offloadInfo.stream_type != AUDIO_STREAM_MUSIC) 1603 { 1604 ALOGV("isOffloadSupported: stream_type != MUSIC, returning false"); 1605 return false; 1606 } 1607 1608 //TODO: enable audio offloading with video when ready 1609 if (offloadInfo.has_video) 1610 { 1611 ALOGV("isOffloadSupported: has_video == true, returning false"); 1612 return false; 1613 } 1614 1615 //If duration is less than minimum value defined in property, return false 1616 if (property_get("audio.offload.min.duration.secs", propValue, NULL)) { 1617 if (offloadInfo.duration_us < (atoi(propValue) * 1000000 )) { 1618 ALOGV("Offload denied by duration < audio.offload.min.duration.secs(=%s)", propValue); 1619 return false; 1620 } 1621 } else if (offloadInfo.duration_us < OFFLOAD_DEFAULT_MIN_DURATION_SECS * 1000000) { 1622 ALOGV("Offload denied by duration < default min(=%u)", OFFLOAD_DEFAULT_MIN_DURATION_SECS); 1623 return false; 1624 } 1625 1626 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 1627 // creating an offloaded track and tearing it down immediately after start when audioflinger 1628 // detects there is an active non offloadable effect. 1629 // FIXME: We should check the audio session here but we do not have it in this context. 1630 // This may prevent offloading in rare situations where effects are left active by apps 1631 // in the background. 1632 if (isNonOffloadableEffectEnabled()) { 1633 return false; 1634 } 1635 1636 // See if there is a profile to support this. 1637 // AUDIO_DEVICE_NONE 1638 sp<IOProfile> profile = getProfileForDirectOutput(AUDIO_DEVICE_NONE /*ignore device */, 1639 offloadInfo.sample_rate, 1640 offloadInfo.format, 1641 offloadInfo.channel_mask, 1642 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD); 1643 ALOGV("isOffloadSupported() profile %sfound", profile != 0 ? "" : "NOT "); 1644 return (profile != 0); 1645} 1646 1647status_t AudioPolicyManager::listAudioPorts(audio_port_role_t role, 1648 audio_port_type_t type, 1649 unsigned int *num_ports, 1650 struct audio_port *ports, 1651 unsigned int *generation) 1652{ 1653 if (num_ports == NULL || (*num_ports != 0 && ports == NULL) || 1654 generation == NULL) { 1655 return BAD_VALUE; 1656 } 1657 ALOGV("listAudioPorts() role %d type %d num_ports %d ports %p", role, type, *num_ports, ports); 1658 if (ports == NULL) { 1659 *num_ports = 0; 1660 } 1661 1662 size_t portsWritten = 0; 1663 size_t portsMax = *num_ports; 1664 *num_ports = 0; 1665 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_DEVICE) { 1666 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 1667 for (size_t i = 0; 1668 i < mAvailableOutputDevices.size() && portsWritten < portsMax; i++) { 1669 mAvailableOutputDevices[i]->toAudioPort(&ports[portsWritten++]); 1670 } 1671 *num_ports += mAvailableOutputDevices.size(); 1672 } 1673 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 1674 for (size_t i = 0; 1675 i < mAvailableInputDevices.size() && portsWritten < portsMax; i++) { 1676 mAvailableInputDevices[i]->toAudioPort(&ports[portsWritten++]); 1677 } 1678 *num_ports += mAvailableInputDevices.size(); 1679 } 1680 } 1681 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_MIX) { 1682 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 1683 for (size_t i = 0; i < mInputs.size() && portsWritten < portsMax; i++) { 1684 mInputs[i]->toAudioPort(&ports[portsWritten++]); 1685 } 1686 *num_ports += mInputs.size(); 1687 } 1688 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 1689 for (size_t i = 0; i < mOutputs.size() && portsWritten < portsMax; i++) { 1690 mOutputs[i]->toAudioPort(&ports[portsWritten++]); 1691 } 1692 *num_ports += mOutputs.size(); 1693 } 1694 } 1695 *generation = curAudioPortGeneration(); 1696 ALOGV("listAudioPorts() got %d ports needed %d", portsWritten, *num_ports); 1697 return NO_ERROR; 1698} 1699 1700status_t AudioPolicyManager::getAudioPort(struct audio_port *port __unused) 1701{ 1702 return NO_ERROR; 1703} 1704 1705sp<AudioPolicyManager::AudioOutputDescriptor> AudioPolicyManager::getOutputFromId( 1706 audio_port_handle_t id) const 1707{ 1708 sp<AudioOutputDescriptor> outputDesc = NULL; 1709 for (size_t i = 0; i < mOutputs.size(); i++) { 1710 outputDesc = mOutputs.valueAt(i); 1711 if (outputDesc->mId == id) { 1712 break; 1713 } 1714 } 1715 return outputDesc; 1716} 1717 1718sp<AudioPolicyManager::AudioInputDescriptor> AudioPolicyManager::getInputFromId( 1719 audio_port_handle_t id) const 1720{ 1721 sp<AudioInputDescriptor> inputDesc = NULL; 1722 for (size_t i = 0; i < mInputs.size(); i++) { 1723 inputDesc = mInputs.valueAt(i); 1724 if (inputDesc->mId == id) { 1725 break; 1726 } 1727 } 1728 return inputDesc; 1729} 1730 1731sp <AudioPolicyManager::HwModule> AudioPolicyManager::getModuleForDevice( 1732 audio_devices_t device) const 1733{ 1734 sp <HwModule> module; 1735 1736 for (size_t i = 0; i < mHwModules.size(); i++) { 1737 if (mHwModules[i]->mHandle == 0) { 1738 continue; 1739 } 1740 if (audio_is_output_device(device)) { 1741 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 1742 { 1743 if (mHwModules[i]->mOutputProfiles[j]->mSupportedDevices.types() & device) { 1744 return mHwModules[i]; 1745 } 1746 } 1747 } else { 1748 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) { 1749 if (mHwModules[i]->mInputProfiles[j]->mSupportedDevices.types() & 1750 device & ~AUDIO_DEVICE_BIT_IN) { 1751 return mHwModules[i]; 1752 } 1753 } 1754 } 1755 } 1756 return module; 1757} 1758 1759sp <AudioPolicyManager::HwModule> AudioPolicyManager::getModuleFromName(const char *name) const 1760{ 1761 sp <HwModule> module; 1762 1763 for (size_t i = 0; i < mHwModules.size(); i++) 1764 { 1765 if (strcmp(mHwModules[i]->mName, name) == 0) { 1766 return mHwModules[i]; 1767 } 1768 } 1769 return module; 1770} 1771 1772 1773status_t AudioPolicyManager::createAudioPatch(const struct audio_patch *patch, 1774 audio_patch_handle_t *handle, 1775 uid_t uid) 1776{ 1777 ALOGV("createAudioPatch()"); 1778 1779 if (handle == NULL || patch == NULL) { 1780 return BAD_VALUE; 1781 } 1782 ALOGV("createAudioPatch() num sources %d num sinks %d", patch->num_sources, patch->num_sinks); 1783 1784 if (patch->num_sources > 1 || patch->num_sinks > 1) { 1785 return INVALID_OPERATION; 1786 } 1787 if (patch->sources[0].role != AUDIO_PORT_ROLE_SOURCE || 1788 patch->sinks[0].role != AUDIO_PORT_ROLE_SINK) { 1789 return INVALID_OPERATION; 1790 } 1791 1792 sp<AudioPatch> patchDesc; 1793 ssize_t index = mAudioPatches.indexOfKey(*handle); 1794 1795 ALOGV("createAudioPatch sink id %d role %d type %d", patch->sinks[0].id, patch->sinks[0].role, 1796 patch->sinks[0].type); 1797 ALOGV("createAudioPatch source id %d role %d type %d", patch->sources[0].id, 1798 patch->sources[0].role, 1799 patch->sources[0].type); 1800 1801 if (index >= 0) { 1802 patchDesc = mAudioPatches.valueAt(index); 1803 ALOGV("createAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 1804 mUidCached, patchDesc->mUid, uid); 1805 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 1806 return INVALID_OPERATION; 1807 } 1808 } else { 1809 *handle = 0; 1810 } 1811 1812 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 1813 // TODO add support for mix to mix connection 1814 if (patch->sinks[0].type != AUDIO_PORT_TYPE_DEVICE) { 1815 ALOGV("createAudioPatch() source mix sink not device"); 1816 return BAD_VALUE; 1817 } 1818 // output mix to output device connection 1819 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(patch->sources[0].id); 1820 if (outputDesc == NULL) { 1821 ALOGV("createAudioPatch() output not found for id %d", patch->sources[0].id); 1822 return BAD_VALUE; 1823 } 1824 if (patchDesc != 0) { 1825 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 1826 ALOGV("createAudioPatch() source id differs for patch current id %d new id %d", 1827 patchDesc->mPatch.sources[0].id, patch->sources[0].id); 1828 return BAD_VALUE; 1829 } 1830 } 1831 sp<DeviceDescriptor> devDesc = 1832 mAvailableOutputDevices.getDeviceFromId(patch->sinks[0].id); 1833 if (devDesc == 0) { 1834 ALOGV("createAudioPatch() out device not found for id %d", patch->sinks[0].id); 1835 return BAD_VALUE; 1836 } 1837 1838 if (!outputDesc->mProfile->isCompatibleProfile(devDesc->mType, 1839 patch->sources[0].sample_rate, 1840 patch->sources[0].format, 1841 patch->sources[0].channel_mask, 1842 AUDIO_OUTPUT_FLAG_NONE)) { 1843 return INVALID_OPERATION; 1844 } 1845 // TODO: reconfigure output format and channels here 1846 ALOGV("createAudioPatch() setting device %08x on output %d", 1847 devDesc->mType, outputDesc->mIoHandle); 1848 setOutputDevice(outputDesc->mIoHandle, 1849 devDesc->mType, 1850 true, 1851 0, 1852 handle); 1853 index = mAudioPatches.indexOfKey(*handle); 1854 if (index >= 0) { 1855 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 1856 ALOGW("createAudioPatch() setOutputDevice() did not reuse the patch provided"); 1857 } 1858 patchDesc = mAudioPatches.valueAt(index); 1859 patchDesc->mUid = uid; 1860 ALOGV("createAudioPatch() success"); 1861 } else { 1862 ALOGW("createAudioPatch() setOutputDevice() failed to create a patch"); 1863 return INVALID_OPERATION; 1864 } 1865 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 1866 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 1867 // input device to input mix connection 1868 sp<AudioInputDescriptor> inputDesc = getInputFromId(patch->sinks[0].id); 1869 if (inputDesc == NULL) { 1870 return BAD_VALUE; 1871 } 1872 if (patchDesc != 0) { 1873 if (patchDesc->mPatch.sinks[0].id != patch->sinks[0].id) { 1874 return BAD_VALUE; 1875 } 1876 } 1877 sp<DeviceDescriptor> devDesc = 1878 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 1879 if (devDesc == 0) { 1880 return BAD_VALUE; 1881 } 1882 1883 if (!inputDesc->mProfile->isCompatibleProfile(devDesc->mType, 1884 patch->sinks[0].sample_rate, 1885 patch->sinks[0].format, 1886 patch->sinks[0].channel_mask, 1887 AUDIO_OUTPUT_FLAG_NONE)) { 1888 return INVALID_OPERATION; 1889 } 1890 // TODO: reconfigure output format and channels here 1891 ALOGV("createAudioPatch() setting device %08x on output %d", 1892 devDesc->mType, inputDesc->mIoHandle); 1893 setInputDevice(inputDesc->mIoHandle, 1894 devDesc->mType, 1895 true, 1896 handle); 1897 index = mAudioPatches.indexOfKey(*handle); 1898 if (index >= 0) { 1899 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 1900 ALOGW("createAudioPatch() setInputDevice() did not reuse the patch provided"); 1901 } 1902 patchDesc = mAudioPatches.valueAt(index); 1903 patchDesc->mUid = uid; 1904 ALOGV("createAudioPatch() success"); 1905 } else { 1906 ALOGW("createAudioPatch() setInputDevice() failed to create a patch"); 1907 return INVALID_OPERATION; 1908 } 1909 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 1910 // device to device connection 1911 if (patchDesc != 0) { 1912 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id && 1913 patchDesc->mPatch.sinks[0].id != patch->sinks[0].id) { 1914 return BAD_VALUE; 1915 } 1916 } 1917 1918 sp<DeviceDescriptor> srcDeviceDesc = 1919 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 1920 sp<DeviceDescriptor> sinkDeviceDesc = 1921 mAvailableOutputDevices.getDeviceFromId(patch->sinks[0].id); 1922 if (srcDeviceDesc == 0 || sinkDeviceDesc == 0) { 1923 return BAD_VALUE; 1924 } 1925 //update source and sink with our own data as the data passed in the patch may 1926 // be incomplete. 1927 struct audio_patch newPatch = *patch; 1928 srcDeviceDesc->toAudioPortConfig(&newPatch.sources[0], &patch->sources[0]); 1929 sinkDeviceDesc->toAudioPortConfig(&newPatch.sinks[0], &patch->sinks[0]); 1930 1931 // TODO: add support for devices on different HW modules 1932 if (srcDeviceDesc->mModule != sinkDeviceDesc->mModule) { 1933 return INVALID_OPERATION; 1934 } 1935 // TODO: check from routing capabilities in config file and other conflicting patches 1936 1937 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 1938 if (index >= 0) { 1939 afPatchHandle = patchDesc->mAfPatchHandle; 1940 } 1941 1942 status_t status = mpClientInterface->createAudioPatch(&newPatch, 1943 &afPatchHandle, 1944 0); 1945 ALOGV("createAudioPatch() patch panel returned %d patchHandle %d", 1946 status, afPatchHandle); 1947 if (status == NO_ERROR) { 1948 if (index < 0) { 1949 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 1950 &newPatch, uid); 1951 addAudioPatch(patchDesc->mHandle, patchDesc); 1952 } else { 1953 patchDesc->mPatch = newPatch; 1954 } 1955 patchDesc->mAfPatchHandle = afPatchHandle; 1956 *handle = patchDesc->mHandle; 1957 nextAudioPortGeneration(); 1958 mpClientInterface->onAudioPatchListUpdate(); 1959 } else { 1960 ALOGW("createAudioPatch() patch panel could not connect device patch, error %d", 1961 status); 1962 return INVALID_OPERATION; 1963 } 1964 } else { 1965 return BAD_VALUE; 1966 } 1967 } else { 1968 return BAD_VALUE; 1969 } 1970 return NO_ERROR; 1971} 1972 1973status_t AudioPolicyManager::releaseAudioPatch(audio_patch_handle_t handle, 1974 uid_t uid) 1975{ 1976 ALOGV("releaseAudioPatch() patch %d", handle); 1977 1978 ssize_t index = mAudioPatches.indexOfKey(handle); 1979 1980 if (index < 0) { 1981 return BAD_VALUE; 1982 } 1983 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 1984 ALOGV("releaseAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 1985 mUidCached, patchDesc->mUid, uid); 1986 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 1987 return INVALID_OPERATION; 1988 } 1989 1990 struct audio_patch *patch = &patchDesc->mPatch; 1991 patchDesc->mUid = mUidCached; 1992 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 1993 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(patch->sources[0].id); 1994 if (outputDesc == NULL) { 1995 ALOGV("releaseAudioPatch() output not found for id %d", patch->sources[0].id); 1996 return BAD_VALUE; 1997 } 1998 1999 setOutputDevice(outputDesc->mIoHandle, 2000 getNewOutputDevice(outputDesc->mIoHandle, true /*fromCache*/), 2001 true, 2002 0, 2003 NULL); 2004 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 2005 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 2006 sp<AudioInputDescriptor> inputDesc = getInputFromId(patch->sinks[0].id); 2007 if (inputDesc == NULL) { 2008 ALOGV("releaseAudioPatch() input not found for id %d", patch->sinks[0].id); 2009 return BAD_VALUE; 2010 } 2011 setInputDevice(inputDesc->mIoHandle, 2012 getNewInputDevice(inputDesc->mIoHandle), 2013 true, 2014 NULL); 2015 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2016 audio_patch_handle_t afPatchHandle = patchDesc->mAfPatchHandle; 2017 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 2018 ALOGV("releaseAudioPatch() patch panel returned %d patchHandle %d", 2019 status, patchDesc->mAfPatchHandle); 2020 removeAudioPatch(patchDesc->mHandle); 2021 nextAudioPortGeneration(); 2022 mpClientInterface->onAudioPatchListUpdate(); 2023 } else { 2024 return BAD_VALUE; 2025 } 2026 } else { 2027 return BAD_VALUE; 2028 } 2029 return NO_ERROR; 2030} 2031 2032status_t AudioPolicyManager::listAudioPatches(unsigned int *num_patches, 2033 struct audio_patch *patches, 2034 unsigned int *generation) 2035{ 2036 if (num_patches == NULL || (*num_patches != 0 && patches == NULL) || 2037 generation == NULL) { 2038 return BAD_VALUE; 2039 } 2040 ALOGV("listAudioPatches() num_patches %d patches %p available patches %d", 2041 *num_patches, patches, mAudioPatches.size()); 2042 if (patches == NULL) { 2043 *num_patches = 0; 2044 } 2045 2046 size_t patchesWritten = 0; 2047 size_t patchesMax = *num_patches; 2048 for (size_t i = 0; 2049 i < mAudioPatches.size() && patchesWritten < patchesMax; i++) { 2050 patches[patchesWritten] = mAudioPatches[i]->mPatch; 2051 patches[patchesWritten++].id = mAudioPatches[i]->mHandle; 2052 ALOGV("listAudioPatches() patch %d num_sources %d num_sinks %d", 2053 i, mAudioPatches[i]->mPatch.num_sources, mAudioPatches[i]->mPatch.num_sinks); 2054 } 2055 *num_patches = mAudioPatches.size(); 2056 2057 *generation = curAudioPortGeneration(); 2058 ALOGV("listAudioPatches() got %d patches needed %d", patchesWritten, *num_patches); 2059 return NO_ERROR; 2060} 2061 2062status_t AudioPolicyManager::setAudioPortConfig(const struct audio_port_config *config) 2063{ 2064 ALOGV("setAudioPortConfig()"); 2065 2066 if (config == NULL) { 2067 return BAD_VALUE; 2068 } 2069 ALOGV("setAudioPortConfig() on port handle %d", config->id); 2070 // Only support gain configuration for now 2071 if (config->config_mask != AUDIO_PORT_CONFIG_GAIN) { 2072 return INVALID_OPERATION; 2073 } 2074 2075 sp<AudioPortConfig> audioPortConfig; 2076 if (config->type == AUDIO_PORT_TYPE_MIX) { 2077 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2078 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(config->id); 2079 if (outputDesc == NULL) { 2080 return BAD_VALUE; 2081 } 2082 audioPortConfig = outputDesc; 2083 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2084 sp<AudioInputDescriptor> inputDesc = getInputFromId(config->id); 2085 if (inputDesc == NULL) { 2086 return BAD_VALUE; 2087 } 2088 audioPortConfig = inputDesc; 2089 } else { 2090 return BAD_VALUE; 2091 } 2092 } else if (config->type == AUDIO_PORT_TYPE_DEVICE) { 2093 sp<DeviceDescriptor> deviceDesc; 2094 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2095 deviceDesc = mAvailableInputDevices.getDeviceFromId(config->id); 2096 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2097 deviceDesc = mAvailableOutputDevices.getDeviceFromId(config->id); 2098 } else { 2099 return BAD_VALUE; 2100 } 2101 if (deviceDesc == NULL) { 2102 return BAD_VALUE; 2103 } 2104 audioPortConfig = deviceDesc; 2105 } else { 2106 return BAD_VALUE; 2107 } 2108 2109 struct audio_port_config backupConfig; 2110 status_t status = audioPortConfig->applyAudioPortConfig(config, &backupConfig); 2111 if (status == NO_ERROR) { 2112 struct audio_port_config newConfig; 2113 audioPortConfig->toAudioPortConfig(&newConfig, config); 2114 status = mpClientInterface->setAudioPortConfig(&newConfig, 0); 2115 } 2116 if (status != NO_ERROR) { 2117 audioPortConfig->applyAudioPortConfig(&backupConfig); 2118 } 2119 2120 return status; 2121} 2122 2123void AudioPolicyManager::clearAudioPatches(uid_t uid) 2124{ 2125 for (ssize_t i = 0; i < (ssize_t)mAudioPatches.size(); i++) { 2126 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(i); 2127 if (patchDesc->mUid == uid) { 2128 // releaseAudioPatch() removes the patch from mAudioPatches 2129 if (releaseAudioPatch(mAudioPatches.keyAt(i), uid) == NO_ERROR) { 2130 i--; 2131 } 2132 } 2133 } 2134} 2135 2136status_t AudioPolicyManager::addAudioPatch(audio_patch_handle_t handle, 2137 const sp<AudioPatch>& patch) 2138{ 2139 ssize_t index = mAudioPatches.indexOfKey(handle); 2140 2141 if (index >= 0) { 2142 ALOGW("addAudioPatch() patch %d already in", handle); 2143 return ALREADY_EXISTS; 2144 } 2145 mAudioPatches.add(handle, patch); 2146 ALOGV("addAudioPatch() handle %d af handle %d num_sources %d num_sinks %d source handle %d" 2147 "sink handle %d", 2148 handle, patch->mAfPatchHandle, patch->mPatch.num_sources, patch->mPatch.num_sinks, 2149 patch->mPatch.sources[0].id, patch->mPatch.sinks[0].id); 2150 return NO_ERROR; 2151} 2152 2153status_t AudioPolicyManager::removeAudioPatch(audio_patch_handle_t handle) 2154{ 2155 ssize_t index = mAudioPatches.indexOfKey(handle); 2156 2157 if (index < 0) { 2158 ALOGW("removeAudioPatch() patch %d not in", handle); 2159 return ALREADY_EXISTS; 2160 } 2161 ALOGV("removeAudioPatch() handle %d af handle %d", handle, 2162 mAudioPatches.valueAt(index)->mAfPatchHandle); 2163 mAudioPatches.removeItemsAt(index); 2164 return NO_ERROR; 2165} 2166 2167// ---------------------------------------------------------------------------- 2168// AudioPolicyManager 2169// ---------------------------------------------------------------------------- 2170 2171uint32_t AudioPolicyManager::nextUniqueId() 2172{ 2173 return android_atomic_inc(&mNextUniqueId); 2174} 2175 2176uint32_t AudioPolicyManager::nextAudioPortGeneration() 2177{ 2178 return android_atomic_inc(&mAudioPortGeneration); 2179} 2180 2181AudioPolicyManager::AudioPolicyManager(AudioPolicyClientInterface *clientInterface) 2182 : 2183#ifdef AUDIO_POLICY_TEST 2184 Thread(false), 2185#endif //AUDIO_POLICY_TEST 2186 mPrimaryOutput((audio_io_handle_t)0), 2187 mPhoneState(AUDIO_MODE_NORMAL), 2188 mLimitRingtoneVolume(false), mLastVoiceVolume(-1.0f), 2189 mTotalEffectsCpuLoad(0), mTotalEffectsMemory(0), 2190 mA2dpSuspended(false), 2191 mSpeakerDrcEnabled(false), mNextUniqueId(1), 2192 mAudioPortGeneration(1) 2193{ 2194 mUidCached = getuid(); 2195 mpClientInterface = clientInterface; 2196 2197 for (int i = 0; i < AUDIO_POLICY_FORCE_USE_CNT; i++) { 2198 mForceUse[i] = AUDIO_POLICY_FORCE_NONE; 2199 } 2200 2201 mDefaultOutputDevice = new DeviceDescriptor(String8(""), AUDIO_DEVICE_OUT_SPEAKER); 2202 if (loadAudioPolicyConfig(AUDIO_POLICY_VENDOR_CONFIG_FILE) != NO_ERROR) { 2203 if (loadAudioPolicyConfig(AUDIO_POLICY_CONFIG_FILE) != NO_ERROR) { 2204 ALOGE("could not load audio policy configuration file, setting defaults"); 2205 defaultAudioPolicyConfig(); 2206 } 2207 } 2208 // mAvailableOutputDevices and mAvailableInputDevices now contain all attached devices 2209 2210 // must be done after reading the policy 2211 initializeVolumeCurves(); 2212 2213 // open all output streams needed to access attached devices 2214 audio_devices_t outputDeviceTypes = mAvailableOutputDevices.types(); 2215 audio_devices_t inputDeviceTypes = mAvailableInputDevices.types() & ~AUDIO_DEVICE_BIT_IN; 2216 for (size_t i = 0; i < mHwModules.size(); i++) { 2217 mHwModules[i]->mHandle = mpClientInterface->loadHwModule(mHwModules[i]->mName); 2218 if (mHwModules[i]->mHandle == 0) { 2219 ALOGW("could not open HW module %s", mHwModules[i]->mName); 2220 continue; 2221 } 2222 // open all output streams needed to access attached devices 2223 // except for direct output streams that are only opened when they are actually 2224 // required by an app. 2225 // This also validates mAvailableOutputDevices list 2226 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 2227 { 2228 const sp<IOProfile> outProfile = mHwModules[i]->mOutputProfiles[j]; 2229 2230 if (outProfile->mSupportedDevices.isEmpty()) { 2231 ALOGW("Output profile contains no device on module %s", mHwModules[i]->mName); 2232 continue; 2233 } 2234 2235 audio_devices_t profileTypes = outProfile->mSupportedDevices.types(); 2236 if ((profileTypes & outputDeviceTypes) && 2237 ((outProfile->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) == 0)) { 2238 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(outProfile); 2239 2240 outputDesc->mDevice = (audio_devices_t)(mDefaultOutputDevice->mDeviceType & profileTypes); 2241 audio_io_handle_t output = mpClientInterface->openOutput( 2242 outProfile->mModule->mHandle, 2243 &outputDesc->mDevice, 2244 &outputDesc->mSamplingRate, 2245 &outputDesc->mFormat, 2246 &outputDesc->mChannelMask, 2247 &outputDesc->mLatency, 2248 outputDesc->mFlags); 2249 if (output == 0) { 2250 ALOGW("Cannot open output stream for device %08x on hw module %s", 2251 outputDesc->mDevice, 2252 mHwModules[i]->mName); 2253 } else { 2254 for (size_t k = 0; k < outProfile->mSupportedDevices.size(); k++) { 2255 audio_devices_t type = outProfile->mSupportedDevices[k]->mDeviceType; 2256 ssize_t index = 2257 mAvailableOutputDevices.indexOf(outProfile->mSupportedDevices[k]); 2258 // give a valid ID to an attached device once confirmed it is reachable 2259 if ((index >= 0) && (mAvailableOutputDevices[index]->mId == 0)) { 2260 mAvailableOutputDevices[index]->mId = nextUniqueId(); 2261 mAvailableOutputDevices[index]->mModule = mHwModules[i]; 2262 } 2263 } 2264 if (mPrimaryOutput == 0 && 2265 outProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 2266 mPrimaryOutput = output; 2267 } 2268 addOutput(output, outputDesc); 2269 ALOGI("CSTOR setOutputDevice %08x", outputDesc->mDevice); 2270 setOutputDevice(output, 2271 outputDesc->mDevice, 2272 true); 2273 } 2274 } 2275 } 2276 // open input streams needed to access attached devices to validate 2277 // mAvailableInputDevices list 2278 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 2279 { 2280 const sp<IOProfile> inProfile = mHwModules[i]->mInputProfiles[j]; 2281 2282 if (inProfile->mSupportedDevices.isEmpty()) { 2283 ALOGW("Input profile contains no device on module %s", mHwModules[i]->mName); 2284 continue; 2285 } 2286 2287 audio_devices_t profileTypes = inProfile->mSupportedDevices.types(); 2288 if (profileTypes & inputDeviceTypes) { 2289 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(inProfile); 2290 2291 inputDesc->mInputSource = AUDIO_SOURCE_MIC; 2292 inputDesc->mDevice = inProfile->mSupportedDevices[0]->mDeviceType; 2293 audio_io_handle_t input = mpClientInterface->openInput( 2294 inProfile->mModule->mHandle, 2295 &inputDesc->mDevice, 2296 &inputDesc->mSamplingRate, 2297 &inputDesc->mFormat, 2298 &inputDesc->mChannelMask); 2299 2300 if (input != 0) { 2301 for (size_t k = 0; k < inProfile->mSupportedDevices.size(); k++) { 2302 audio_devices_t type = inProfile->mSupportedDevices[k]->mDeviceType; 2303 ssize_t index = 2304 mAvailableInputDevices.indexOf(inProfile->mSupportedDevices[k]); 2305 // give a valid ID to an attached device once confirmed it is reachable 2306 if ((index >= 0) && (mAvailableInputDevices[index]->mId == 0)) { 2307 mAvailableInputDevices[index]->mId = nextUniqueId(); 2308 mAvailableInputDevices[index]->mModule = mHwModules[i]; 2309 } 2310 } 2311 mpClientInterface->closeInput(input); 2312 } else { 2313 ALOGW("Cannot open input stream for device %08x on hw module %s", 2314 inputDesc->mDevice, 2315 mHwModules[i]->mName); 2316 } 2317 } 2318 } 2319 } 2320 // make sure all attached devices have been allocated a unique ID 2321 for (size_t i = 0; i < mAvailableOutputDevices.size();) { 2322 if (mAvailableOutputDevices[i]->mId == 0) { 2323 ALOGW("Input device %08x unreachable", mAvailableOutputDevices[i]->mDeviceType); 2324 mAvailableOutputDevices.remove(mAvailableOutputDevices[i]); 2325 continue; 2326 } 2327 i++; 2328 } 2329 for (size_t i = 0; i < mAvailableInputDevices.size();) { 2330 if (mAvailableInputDevices[i]->mId == 0) { 2331 ALOGW("Input device %08x unreachable", mAvailableInputDevices[i]->mDeviceType); 2332 mAvailableInputDevices.remove(mAvailableInputDevices[i]); 2333 continue; 2334 } 2335 i++; 2336 } 2337 // make sure default device is reachable 2338 if (mAvailableOutputDevices.indexOf(mDefaultOutputDevice) < 0) { 2339 ALOGE("Default device %08x is unreachable", mDefaultOutputDevice->mDeviceType); 2340 } 2341 2342 ALOGE_IF((mPrimaryOutput == 0), "Failed to open primary output"); 2343 2344 updateDevicesAndOutputs(); 2345 2346#ifdef AUDIO_POLICY_TEST 2347 if (mPrimaryOutput != 0) { 2348 AudioParameter outputCmd = AudioParameter(); 2349 outputCmd.addInt(String8("set_id"), 0); 2350 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 2351 2352 mTestDevice = AUDIO_DEVICE_OUT_SPEAKER; 2353 mTestSamplingRate = 44100; 2354 mTestFormat = AUDIO_FORMAT_PCM_16_BIT; 2355 mTestChannels = AUDIO_CHANNEL_OUT_STEREO; 2356 mTestLatencyMs = 0; 2357 mCurOutput = 0; 2358 mDirectOutput = false; 2359 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 2360 mTestOutputs[i] = 0; 2361 } 2362 2363 const size_t SIZE = 256; 2364 char buffer[SIZE]; 2365 snprintf(buffer, SIZE, "AudioPolicyManagerTest"); 2366 run(buffer, ANDROID_PRIORITY_AUDIO); 2367 } 2368#endif //AUDIO_POLICY_TEST 2369} 2370 2371AudioPolicyManager::~AudioPolicyManager() 2372{ 2373#ifdef AUDIO_POLICY_TEST 2374 exit(); 2375#endif //AUDIO_POLICY_TEST 2376 for (size_t i = 0; i < mOutputs.size(); i++) { 2377 mpClientInterface->closeOutput(mOutputs.keyAt(i)); 2378 } 2379 for (size_t i = 0; i < mInputs.size(); i++) { 2380 mpClientInterface->closeInput(mInputs.keyAt(i)); 2381 } 2382 mAvailableOutputDevices.clear(); 2383 mAvailableInputDevices.clear(); 2384 mOutputs.clear(); 2385 mInputs.clear(); 2386 mHwModules.clear(); 2387} 2388 2389status_t AudioPolicyManager::initCheck() 2390{ 2391 return (mPrimaryOutput == 0) ? NO_INIT : NO_ERROR; 2392} 2393 2394#ifdef AUDIO_POLICY_TEST 2395bool AudioPolicyManager::threadLoop() 2396{ 2397 ALOGV("entering threadLoop()"); 2398 while (!exitPending()) 2399 { 2400 String8 command; 2401 int valueInt; 2402 String8 value; 2403 2404 Mutex::Autolock _l(mLock); 2405 mWaitWorkCV.waitRelative(mLock, milliseconds(50)); 2406 2407 command = mpClientInterface->getParameters(0, String8("test_cmd_policy")); 2408 AudioParameter param = AudioParameter(command); 2409 2410 if (param.getInt(String8("test_cmd_policy"), valueInt) == NO_ERROR && 2411 valueInt != 0) { 2412 ALOGV("Test command %s received", command.string()); 2413 String8 target; 2414 if (param.get(String8("target"), target) != NO_ERROR) { 2415 target = "Manager"; 2416 } 2417 if (param.getInt(String8("test_cmd_policy_output"), valueInt) == NO_ERROR) { 2418 param.remove(String8("test_cmd_policy_output")); 2419 mCurOutput = valueInt; 2420 } 2421 if (param.get(String8("test_cmd_policy_direct"), value) == NO_ERROR) { 2422 param.remove(String8("test_cmd_policy_direct")); 2423 if (value == "false") { 2424 mDirectOutput = false; 2425 } else if (value == "true") { 2426 mDirectOutput = true; 2427 } 2428 } 2429 if (param.getInt(String8("test_cmd_policy_input"), valueInt) == NO_ERROR) { 2430 param.remove(String8("test_cmd_policy_input")); 2431 mTestInput = valueInt; 2432 } 2433 2434 if (param.get(String8("test_cmd_policy_format"), value) == NO_ERROR) { 2435 param.remove(String8("test_cmd_policy_format")); 2436 int format = AUDIO_FORMAT_INVALID; 2437 if (value == "PCM 16 bits") { 2438 format = AUDIO_FORMAT_PCM_16_BIT; 2439 } else if (value == "PCM 8 bits") { 2440 format = AUDIO_FORMAT_PCM_8_BIT; 2441 } else if (value == "Compressed MP3") { 2442 format = AUDIO_FORMAT_MP3; 2443 } 2444 if (format != AUDIO_FORMAT_INVALID) { 2445 if (target == "Manager") { 2446 mTestFormat = format; 2447 } else if (mTestOutputs[mCurOutput] != 0) { 2448 AudioParameter outputParam = AudioParameter(); 2449 outputParam.addInt(String8("format"), format); 2450 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 2451 } 2452 } 2453 } 2454 if (param.get(String8("test_cmd_policy_channels"), value) == NO_ERROR) { 2455 param.remove(String8("test_cmd_policy_channels")); 2456 int channels = 0; 2457 2458 if (value == "Channels Stereo") { 2459 channels = AUDIO_CHANNEL_OUT_STEREO; 2460 } else if (value == "Channels Mono") { 2461 channels = AUDIO_CHANNEL_OUT_MONO; 2462 } 2463 if (channels != 0) { 2464 if (target == "Manager") { 2465 mTestChannels = channels; 2466 } else if (mTestOutputs[mCurOutput] != 0) { 2467 AudioParameter outputParam = AudioParameter(); 2468 outputParam.addInt(String8("channels"), channels); 2469 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 2470 } 2471 } 2472 } 2473 if (param.getInt(String8("test_cmd_policy_sampleRate"), valueInt) == NO_ERROR) { 2474 param.remove(String8("test_cmd_policy_sampleRate")); 2475 if (valueInt >= 0 && valueInt <= 96000) { 2476 int samplingRate = valueInt; 2477 if (target == "Manager") { 2478 mTestSamplingRate = samplingRate; 2479 } else if (mTestOutputs[mCurOutput] != 0) { 2480 AudioParameter outputParam = AudioParameter(); 2481 outputParam.addInt(String8("sampling_rate"), samplingRate); 2482 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 2483 } 2484 } 2485 } 2486 2487 if (param.get(String8("test_cmd_policy_reopen"), value) == NO_ERROR) { 2488 param.remove(String8("test_cmd_policy_reopen")); 2489 2490 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 2491 mpClientInterface->closeOutput(mPrimaryOutput); 2492 2493 audio_module_handle_t moduleHandle = outputDesc->mModule->mHandle; 2494 2495 mOutputs.removeItem(mPrimaryOutput); 2496 2497 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(NULL); 2498 outputDesc->mDevice = AUDIO_DEVICE_OUT_SPEAKER; 2499 mPrimaryOutput = mpClientInterface->openOutput(moduleHandle, 2500 &outputDesc->mDevice, 2501 &outputDesc->mSamplingRate, 2502 &outputDesc->mFormat, 2503 &outputDesc->mChannelMask, 2504 &outputDesc->mLatency, 2505 outputDesc->mFlags); 2506 if (mPrimaryOutput == 0) { 2507 ALOGE("Failed to reopen hardware output stream, samplingRate: %d, format %d, channels %d", 2508 outputDesc->mSamplingRate, outputDesc->mFormat, outputDesc->mChannelMask); 2509 } else { 2510 AudioParameter outputCmd = AudioParameter(); 2511 outputCmd.addInt(String8("set_id"), 0); 2512 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 2513 addOutput(mPrimaryOutput, outputDesc); 2514 } 2515 } 2516 2517 2518 mpClientInterface->setParameters(0, String8("test_cmd_policy=")); 2519 } 2520 } 2521 return false; 2522} 2523 2524void AudioPolicyManager::exit() 2525{ 2526 { 2527 AutoMutex _l(mLock); 2528 requestExit(); 2529 mWaitWorkCV.signal(); 2530 } 2531 requestExitAndWait(); 2532} 2533 2534int AudioPolicyManager::testOutputIndex(audio_io_handle_t output) 2535{ 2536 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 2537 if (output == mTestOutputs[i]) return i; 2538 } 2539 return 0; 2540} 2541#endif //AUDIO_POLICY_TEST 2542 2543// --- 2544 2545void AudioPolicyManager::addOutput(audio_io_handle_t output, sp<AudioOutputDescriptor> outputDesc) 2546{ 2547 outputDesc->mIoHandle = output; 2548 outputDesc->mId = nextUniqueId(); 2549 mOutputs.add(output, outputDesc); 2550 nextAudioPortGeneration(); 2551} 2552 2553void AudioPolicyManager::addInput(audio_io_handle_t input, sp<AudioInputDescriptor> inputDesc) 2554{ 2555 inputDesc->mIoHandle = input; 2556 inputDesc->mId = nextUniqueId(); 2557 mInputs.add(input, inputDesc); 2558 nextAudioPortGeneration(); 2559} 2560 2561String8 AudioPolicyManager::addressToParameter(audio_devices_t device, const String8 address) 2562{ 2563 if (device & AUDIO_DEVICE_OUT_ALL_A2DP) { 2564 return String8("a2dp_sink_address=")+address; 2565 } 2566 return address; 2567} 2568 2569status_t AudioPolicyManager::checkOutputsForDevice(audio_devices_t device, 2570 audio_policy_dev_state_t state, 2571 SortedVector<audio_io_handle_t>& outputs, 2572 const String8 address) 2573{ 2574 sp<AudioOutputDescriptor> desc; 2575 2576 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 2577 // first list already open outputs that can be routed to this device 2578 for (size_t i = 0; i < mOutputs.size(); i++) { 2579 desc = mOutputs.valueAt(i); 2580 if (!desc->isDuplicated() && (desc->mProfile->mSupportedDevices.types() & device)) { 2581 ALOGV("checkOutputsForDevice(): adding opened output %d", mOutputs.keyAt(i)); 2582 outputs.add(mOutputs.keyAt(i)); 2583 } 2584 } 2585 // then look for output profiles that can be routed to this device 2586 SortedVector< sp<IOProfile> > profiles; 2587 for (size_t i = 0; i < mHwModules.size(); i++) 2588 { 2589 if (mHwModules[i]->mHandle == 0) { 2590 continue; 2591 } 2592 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 2593 { 2594 if (mHwModules[i]->mOutputProfiles[j]->mSupportedDevices.types() & device) { 2595 ALOGV("checkOutputsForDevice(): adding profile %zu from module %zu", j, i); 2596 profiles.add(mHwModules[i]->mOutputProfiles[j]); 2597 } 2598 } 2599 } 2600 2601 if (profiles.isEmpty() && outputs.isEmpty()) { 2602 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 2603 return BAD_VALUE; 2604 } 2605 2606 // open outputs for matching profiles if needed. Direct outputs are also opened to 2607 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 2608 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 2609 sp<IOProfile> profile = profiles[profile_index]; 2610 2611 // nothing to do if one output is already opened for this profile 2612 size_t j; 2613 for (j = 0; j < mOutputs.size(); j++) { 2614 desc = mOutputs.valueAt(j); 2615 if (!desc->isDuplicated() && desc->mProfile == profile) { 2616 break; 2617 } 2618 } 2619 if (j != mOutputs.size()) { 2620 continue; 2621 } 2622 2623 ALOGV("opening output for device %08x with params %s", device, address.string()); 2624 desc = new AudioOutputDescriptor(profile); 2625 desc->mDevice = device; 2626 audio_offload_info_t offloadInfo = AUDIO_INFO_INITIALIZER; 2627 offloadInfo.sample_rate = desc->mSamplingRate; 2628 offloadInfo.format = desc->mFormat; 2629 offloadInfo.channel_mask = desc->mChannelMask; 2630 2631 audio_io_handle_t output = mpClientInterface->openOutput(profile->mModule->mHandle, 2632 &desc->mDevice, 2633 &desc->mSamplingRate, 2634 &desc->mFormat, 2635 &desc->mChannelMask, 2636 &desc->mLatency, 2637 desc->mFlags, 2638 &offloadInfo); 2639 if (output != 0) { 2640 // Here is where the out_set_parameters() for card & device gets called 2641 if (!address.isEmpty()) { 2642 mpClientInterface->setParameters(output, addressToParameter(device, address)); 2643 } 2644 2645 // Here is where we step through and resolve any "dynamic" fields 2646 String8 reply; 2647 char *value; 2648 if (profile->mSamplingRates[0] == 0) { 2649 reply = mpClientInterface->getParameters(output, 2650 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 2651 ALOGV("checkOutputsForDevice() direct output sup sampling rates %s", 2652 reply.string()); 2653 value = strpbrk((char *)reply.string(), "="); 2654 if (value != NULL) { 2655 profile->loadSamplingRates(value + 1); 2656 } 2657 } 2658 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 2659 reply = mpClientInterface->getParameters(output, 2660 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 2661 ALOGV("checkOutputsForDevice() direct output sup formats %s", 2662 reply.string()); 2663 value = strpbrk((char *)reply.string(), "="); 2664 if (value != NULL) { 2665 profile->loadFormats(value + 1); 2666 } 2667 } 2668 if (profile->mChannelMasks[0] == 0) { 2669 reply = mpClientInterface->getParameters(output, 2670 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 2671 ALOGV("checkOutputsForDevice() direct output sup channel masks %s", 2672 reply.string()); 2673 value = strpbrk((char *)reply.string(), "="); 2674 if (value != NULL) { 2675 profile->loadOutChannels(value + 1); 2676 } 2677 } 2678 if (((profile->mSamplingRates[0] == 0) && 2679 (profile->mSamplingRates.size() < 2)) || 2680 ((profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) && 2681 (profile->mFormats.size() < 2)) || 2682 ((profile->mChannelMasks[0] == 0) && 2683 (profile->mChannelMasks.size() < 2))) { 2684 ALOGW("checkOutputsForDevice() direct output missing param"); 2685 mpClientInterface->closeOutput(output); 2686 output = 0; 2687 } else if (profile->mSamplingRates[0] == 0) { 2688 mpClientInterface->closeOutput(output); 2689 desc->mSamplingRate = profile->mSamplingRates[1]; 2690 offloadInfo.sample_rate = desc->mSamplingRate; 2691 output = mpClientInterface->openOutput( 2692 profile->mModule->mHandle, 2693 &desc->mDevice, 2694 &desc->mSamplingRate, 2695 &desc->mFormat, 2696 &desc->mChannelMask, 2697 &desc->mLatency, 2698 desc->mFlags, 2699 &offloadInfo); 2700 } 2701 2702 if (output != 0) { 2703 addOutput(output, desc); 2704 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) { 2705 audio_io_handle_t duplicatedOutput = 0; 2706 2707 // set initial stream volume for device 2708 applyStreamVolumes(output, device, 0, true); 2709 2710 //TODO: configure audio effect output stage here 2711 2712 // open a duplicating output thread for the new output and the primary output 2713 duplicatedOutput = mpClientInterface->openDuplicateOutput(output, 2714 mPrimaryOutput); 2715 if (duplicatedOutput != 0) { 2716 // add duplicated output descriptor 2717 sp<AudioOutputDescriptor> dupOutputDesc = new AudioOutputDescriptor(NULL); 2718 dupOutputDesc->mOutput1 = mOutputs.valueFor(mPrimaryOutput); 2719 dupOutputDesc->mOutput2 = mOutputs.valueFor(output); 2720 dupOutputDesc->mSamplingRate = desc->mSamplingRate; 2721 dupOutputDesc->mFormat = desc->mFormat; 2722 dupOutputDesc->mChannelMask = desc->mChannelMask; 2723 dupOutputDesc->mLatency = desc->mLatency; 2724 addOutput(duplicatedOutput, dupOutputDesc); 2725 applyStreamVolumes(duplicatedOutput, device, 0, true); 2726 } else { 2727 ALOGW("checkOutputsForDevice() could not open dup output for %d and %d", 2728 mPrimaryOutput, output); 2729 mpClientInterface->closeOutput(output); 2730 mOutputs.removeItem(output); 2731 nextAudioPortGeneration(); 2732 output = 0; 2733 } 2734 } 2735 } 2736 } 2737 if (output == 0) { 2738 ALOGW("checkOutputsForDevice() could not open output for device %x", device); 2739 profiles.removeAt(profile_index); 2740 profile_index--; 2741 } else { 2742 outputs.add(output); 2743 ALOGV("checkOutputsForDevice(): adding output %d", output); 2744 } 2745 } 2746 2747 if (profiles.isEmpty()) { 2748 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 2749 return BAD_VALUE; 2750 } 2751 } else { // Disconnect 2752 // check if one opened output is not needed any more after disconnecting one device 2753 for (size_t i = 0; i < mOutputs.size(); i++) { 2754 desc = mOutputs.valueAt(i); 2755 if (!desc->isDuplicated() && 2756 !(desc->mProfile->mSupportedDevices.types() & 2757 mAvailableOutputDevices.types())) { 2758 ALOGV("checkOutputsForDevice(): disconnecting adding output %d", mOutputs.keyAt(i)); 2759 outputs.add(mOutputs.keyAt(i)); 2760 } 2761 } 2762 // Clear any profiles associated with the disconnected device. 2763 for (size_t i = 0; i < mHwModules.size(); i++) 2764 { 2765 if (mHwModules[i]->mHandle == 0) { 2766 continue; 2767 } 2768 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 2769 { 2770 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 2771 if (profile->mSupportedDevices.types() & device) { 2772 ALOGV("checkOutputsForDevice(): " 2773 "clearing direct output profile %zu on module %zu", j, i); 2774 if (profile->mSamplingRates[0] == 0) { 2775 profile->mSamplingRates.clear(); 2776 profile->mSamplingRates.add(0); 2777 } 2778 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 2779 profile->mFormats.clear(); 2780 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 2781 } 2782 if (profile->mChannelMasks[0] == 0) { 2783 profile->mChannelMasks.clear(); 2784 profile->mChannelMasks.add(0); 2785 } 2786 } 2787 } 2788 } 2789 } 2790 return NO_ERROR; 2791} 2792 2793status_t AudioPolicyManager::checkInputsForDevice(audio_devices_t device, 2794 audio_policy_dev_state_t state, 2795 SortedVector<audio_io_handle_t>& inputs, 2796 const String8 address) 2797{ 2798 sp<AudioInputDescriptor> desc; 2799 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 2800 // first list already open inputs that can be routed to this device 2801 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 2802 desc = mInputs.valueAt(input_index); 2803 if (desc->mProfile->mSupportedDevices.types() & (device & ~AUDIO_DEVICE_BIT_IN)) { 2804 ALOGV("checkInputsForDevice(): adding opened input %d", mInputs.keyAt(input_index)); 2805 inputs.add(mInputs.keyAt(input_index)); 2806 } 2807 } 2808 2809 // then look for input profiles that can be routed to this device 2810 SortedVector< sp<IOProfile> > profiles; 2811 for (size_t module_idx = 0; module_idx < mHwModules.size(); module_idx++) 2812 { 2813 if (mHwModules[module_idx]->mHandle == 0) { 2814 continue; 2815 } 2816 for (size_t profile_index = 0; 2817 profile_index < mHwModules[module_idx]->mInputProfiles.size(); 2818 profile_index++) 2819 { 2820 if (mHwModules[module_idx]->mInputProfiles[profile_index]->mSupportedDevices.types() 2821 & (device & ~AUDIO_DEVICE_BIT_IN)) { 2822 ALOGV("checkInputsForDevice(): adding profile %d from module %d", 2823 profile_index, module_idx); 2824 profiles.add(mHwModules[module_idx]->mInputProfiles[profile_index]); 2825 } 2826 } 2827 } 2828 2829 if (profiles.isEmpty() && inputs.isEmpty()) { 2830 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 2831 return BAD_VALUE; 2832 } 2833 2834 // open inputs for matching profiles if needed. Direct inputs are also opened to 2835 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 2836 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 2837 2838 sp<IOProfile> profile = profiles[profile_index]; 2839 // nothing to do if one input is already opened for this profile 2840 size_t input_index; 2841 for (input_index = 0; input_index < mInputs.size(); input_index++) { 2842 desc = mInputs.valueAt(input_index); 2843 if (desc->mProfile == profile) { 2844 break; 2845 } 2846 } 2847 if (input_index != mInputs.size()) { 2848 continue; 2849 } 2850 2851 ALOGV("opening input for device 0x%X with params %s", device, address.string()); 2852 desc = new AudioInputDescriptor(profile); 2853 desc->mDevice = device; 2854 2855 audio_io_handle_t input = mpClientInterface->openInput(profile->mModule->mHandle, 2856 &desc->mDevice, 2857 &desc->mSamplingRate, 2858 &desc->mFormat, 2859 &desc->mChannelMask); 2860 2861 if (input != 0) { 2862 if (!address.isEmpty()) { 2863 mpClientInterface->setParameters(input, addressToParameter(device, address)); 2864 } 2865 2866 // Here is where we step through and resolve any "dynamic" fields 2867 String8 reply; 2868 char *value; 2869 if (profile->mSamplingRates[0] == 0) { 2870 reply = mpClientInterface->getParameters(input, 2871 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 2872 ALOGV("checkInputsForDevice() direct input sup sampling rates %s", 2873 reply.string()); 2874 value = strpbrk((char *)reply.string(), "="); 2875 if (value != NULL) { 2876 profile->loadSamplingRates(value + 1); 2877 } 2878 } 2879 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 2880 reply = mpClientInterface->getParameters(input, 2881 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 2882 ALOGV("checkInputsForDevice() direct input sup formats %s", reply.string()); 2883 value = strpbrk((char *)reply.string(), "="); 2884 if (value != NULL) { 2885 profile->loadFormats(value + 1); 2886 } 2887 } 2888 if (profile->mChannelMasks[0] == 0) { 2889 reply = mpClientInterface->getParameters(input, 2890 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 2891 ALOGV("checkInputsForDevice() direct input sup channel masks %s", 2892 reply.string()); 2893 value = strpbrk((char *)reply.string(), "="); 2894 if (value != NULL) { 2895 profile->loadInChannels(value + 1); 2896 } 2897 } 2898 if (((profile->mSamplingRates[0] == 0) && (profile->mSamplingRates.size() < 2)) || 2899 ((profile->mFormats[0] == 0) && (profile->mFormats.size() < 2)) || 2900 ((profile->mChannelMasks[0] == 0) && (profile->mChannelMasks.size() < 2))) { 2901 ALOGW("checkInputsForDevice() direct input missing param"); 2902 mpClientInterface->closeInput(input); 2903 input = 0; 2904 } 2905 2906 if (input != 0) { 2907 addInput(input, desc); 2908 } 2909 } // endif input != 0 2910 2911 if (input == 0) { 2912 ALOGW("checkInputsForDevice() could not open input for device 0x%X", device); 2913 profiles.removeAt(profile_index); 2914 profile_index--; 2915 } else { 2916 inputs.add(input); 2917 ALOGV("checkInputsForDevice(): adding input %d", input); 2918 } 2919 } // end scan profiles 2920 2921 if (profiles.isEmpty()) { 2922 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 2923 return BAD_VALUE; 2924 } 2925 } else { 2926 // Disconnect 2927 // check if one opened input is not needed any more after disconnecting one device 2928 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 2929 desc = mInputs.valueAt(input_index); 2930 if (!(desc->mProfile->mSupportedDevices.types() & mAvailableInputDevices.types())) { 2931 ALOGV("checkInputsForDevice(): disconnecting adding input %d", 2932 mInputs.keyAt(input_index)); 2933 inputs.add(mInputs.keyAt(input_index)); 2934 } 2935 } 2936 // Clear any profiles associated with the disconnected device. 2937 for (size_t module_index = 0; module_index < mHwModules.size(); module_index++) { 2938 if (mHwModules[module_index]->mHandle == 0) { 2939 continue; 2940 } 2941 for (size_t profile_index = 0; 2942 profile_index < mHwModules[module_index]->mInputProfiles.size(); 2943 profile_index++) { 2944 sp<IOProfile> profile = mHwModules[module_index]->mInputProfiles[profile_index]; 2945 if (profile->mSupportedDevices.types() & device) { 2946 ALOGV("checkInputsForDevice(): clearing direct input profile %d on module %d", 2947 profile_index, module_index); 2948 if (profile->mSamplingRates[0] == 0) { 2949 profile->mSamplingRates.clear(); 2950 profile->mSamplingRates.add(0); 2951 } 2952 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 2953 profile->mFormats.clear(); 2954 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 2955 } 2956 if (profile->mChannelMasks[0] == 0) { 2957 profile->mChannelMasks.clear(); 2958 profile->mChannelMasks.add(0); 2959 } 2960 } 2961 } 2962 } 2963 } // end disconnect 2964 2965 return NO_ERROR; 2966} 2967 2968 2969void AudioPolicyManager::closeOutput(audio_io_handle_t output) 2970{ 2971 ALOGV("closeOutput(%d)", output); 2972 2973 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 2974 if (outputDesc == NULL) { 2975 ALOGW("closeOutput() unknown output %d", output); 2976 return; 2977 } 2978 2979 // look for duplicated outputs connected to the output being removed. 2980 for (size_t i = 0; i < mOutputs.size(); i++) { 2981 sp<AudioOutputDescriptor> dupOutputDesc = mOutputs.valueAt(i); 2982 if (dupOutputDesc->isDuplicated() && 2983 (dupOutputDesc->mOutput1 == outputDesc || 2984 dupOutputDesc->mOutput2 == outputDesc)) { 2985 sp<AudioOutputDescriptor> outputDesc2; 2986 if (dupOutputDesc->mOutput1 == outputDesc) { 2987 outputDesc2 = dupOutputDesc->mOutput2; 2988 } else { 2989 outputDesc2 = dupOutputDesc->mOutput1; 2990 } 2991 // As all active tracks on duplicated output will be deleted, 2992 // and as they were also referenced on the other output, the reference 2993 // count for their stream type must be adjusted accordingly on 2994 // the other output. 2995 for (int j = 0; j < AUDIO_STREAM_CNT; j++) { 2996 int refCount = dupOutputDesc->mRefCount[j]; 2997 outputDesc2->changeRefCount((audio_stream_type_t)j,-refCount); 2998 } 2999 audio_io_handle_t duplicatedOutput = mOutputs.keyAt(i); 3000 ALOGV("closeOutput() closing also duplicated output %d", duplicatedOutput); 3001 3002 mpClientInterface->closeOutput(duplicatedOutput); 3003 mOutputs.removeItem(duplicatedOutput); 3004 } 3005 } 3006 3007 AudioParameter param; 3008 param.add(String8("closing"), String8("true")); 3009 mpClientInterface->setParameters(output, param.toString()); 3010 3011 mpClientInterface->closeOutput(output); 3012 mOutputs.removeItem(output); 3013 mPreviousOutputs = mOutputs; 3014 nextAudioPortGeneration(); 3015} 3016 3017SortedVector<audio_io_handle_t> AudioPolicyManager::getOutputsForDevice(audio_devices_t device, 3018 DefaultKeyedVector<audio_io_handle_t, sp<AudioOutputDescriptor> > openOutputs) 3019{ 3020 SortedVector<audio_io_handle_t> outputs; 3021 3022 ALOGVV("getOutputsForDevice() device %04x", device); 3023 for (size_t i = 0; i < openOutputs.size(); i++) { 3024 ALOGVV("output %d isDuplicated=%d device=%04x", 3025 i, openOutputs.valueAt(i)->isDuplicated(), openOutputs.valueAt(i)->supportedDevices()); 3026 if ((device & openOutputs.valueAt(i)->supportedDevices()) == device) { 3027 ALOGVV("getOutputsForDevice() found output %d", openOutputs.keyAt(i)); 3028 outputs.add(openOutputs.keyAt(i)); 3029 } 3030 } 3031 return outputs; 3032} 3033 3034bool AudioPolicyManager::vectorsEqual(SortedVector<audio_io_handle_t>& outputs1, 3035 SortedVector<audio_io_handle_t>& outputs2) 3036{ 3037 if (outputs1.size() != outputs2.size()) { 3038 return false; 3039 } 3040 for (size_t i = 0; i < outputs1.size(); i++) { 3041 if (outputs1[i] != outputs2[i]) { 3042 return false; 3043 } 3044 } 3045 return true; 3046} 3047 3048void AudioPolicyManager::checkOutputForStrategy(routing_strategy strategy) 3049{ 3050 audio_devices_t oldDevice = getDeviceForStrategy(strategy, true /*fromCache*/); 3051 audio_devices_t newDevice = getDeviceForStrategy(strategy, false /*fromCache*/); 3052 SortedVector<audio_io_handle_t> srcOutputs = getOutputsForDevice(oldDevice, mPreviousOutputs); 3053 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(newDevice, mOutputs); 3054 3055 if (!vectorsEqual(srcOutputs,dstOutputs)) { 3056 ALOGV("checkOutputForStrategy() strategy %d, moving from output %d to output %d", 3057 strategy, srcOutputs[0], dstOutputs[0]); 3058 // mute strategy while moving tracks from one output to another 3059 for (size_t i = 0; i < srcOutputs.size(); i++) { 3060 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(srcOutputs[i]); 3061 if (desc->isStrategyActive(strategy)) { 3062 setStrategyMute(strategy, true, srcOutputs[i]); 3063 setStrategyMute(strategy, false, srcOutputs[i], MUTE_TIME_MS, newDevice); 3064 } 3065 } 3066 3067 // Move effects associated to this strategy from previous output to new output 3068 if (strategy == STRATEGY_MEDIA) { 3069 audio_io_handle_t fxOutput = selectOutputForEffects(dstOutputs); 3070 SortedVector<audio_io_handle_t> moved; 3071 for (size_t i = 0; i < mEffects.size(); i++) { 3072 sp<EffectDescriptor> effectDesc = mEffects.valueAt(i); 3073 if (effectDesc->mSession == AUDIO_SESSION_OUTPUT_MIX && 3074 effectDesc->mIo != fxOutput) { 3075 if (moved.indexOf(effectDesc->mIo) < 0) { 3076 ALOGV("checkOutputForStrategy() moving effect %d to output %d", 3077 mEffects.keyAt(i), fxOutput); 3078 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, effectDesc->mIo, 3079 fxOutput); 3080 moved.add(effectDesc->mIo); 3081 } 3082 effectDesc->mIo = fxOutput; 3083 } 3084 } 3085 } 3086 // Move tracks associated to this strategy from previous output to new output 3087 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 3088 if (getStrategy((audio_stream_type_t)i) == strategy) { 3089 mpClientInterface->invalidateStream((audio_stream_type_t)i); 3090 } 3091 } 3092 } 3093} 3094 3095void AudioPolicyManager::checkOutputForAllStrategies() 3096{ 3097 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 3098 checkOutputForStrategy(STRATEGY_PHONE); 3099 checkOutputForStrategy(STRATEGY_SONIFICATION); 3100 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 3101 checkOutputForStrategy(STRATEGY_MEDIA); 3102 checkOutputForStrategy(STRATEGY_DTMF); 3103} 3104 3105audio_io_handle_t AudioPolicyManager::getA2dpOutput() 3106{ 3107 for (size_t i = 0; i < mOutputs.size(); i++) { 3108 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 3109 if (!outputDesc->isDuplicated() && outputDesc->device() & AUDIO_DEVICE_OUT_ALL_A2DP) { 3110 return mOutputs.keyAt(i); 3111 } 3112 } 3113 3114 return 0; 3115} 3116 3117void AudioPolicyManager::checkA2dpSuspend() 3118{ 3119 audio_io_handle_t a2dpOutput = getA2dpOutput(); 3120 if (a2dpOutput == 0) { 3121 mA2dpSuspended = false; 3122 return; 3123 } 3124 3125 bool isScoConnected = 3126 (mAvailableInputDevices.types() & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) != 0; 3127 // suspend A2DP output if: 3128 // (NOT already suspended) && 3129 // ((SCO device is connected && 3130 // (forced usage for communication || for record is SCO))) || 3131 // (phone state is ringing || in call) 3132 // 3133 // restore A2DP output if: 3134 // (Already suspended) && 3135 // ((SCO device is NOT connected || 3136 // (forced usage NOT for communication && NOT for record is SCO))) && 3137 // (phone state is NOT ringing && NOT in call) 3138 // 3139 if (mA2dpSuspended) { 3140 if ((!isScoConnected || 3141 ((mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] != AUDIO_POLICY_FORCE_BT_SCO) && 3142 (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] != AUDIO_POLICY_FORCE_BT_SCO))) && 3143 ((mPhoneState != AUDIO_MODE_IN_CALL) && 3144 (mPhoneState != AUDIO_MODE_RINGTONE))) { 3145 3146 mpClientInterface->restoreOutput(a2dpOutput); 3147 mA2dpSuspended = false; 3148 } 3149 } else { 3150 if ((isScoConnected && 3151 ((mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO) || 3152 (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO))) || 3153 ((mPhoneState == AUDIO_MODE_IN_CALL) || 3154 (mPhoneState == AUDIO_MODE_RINGTONE))) { 3155 3156 mpClientInterface->suspendOutput(a2dpOutput); 3157 mA2dpSuspended = true; 3158 } 3159 } 3160} 3161 3162audio_devices_t AudioPolicyManager::getNewOutputDevice(audio_io_handle_t output, bool fromCache) 3163{ 3164 audio_devices_t device = AUDIO_DEVICE_NONE; 3165 3166 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 3167 3168 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3169 if (index >= 0) { 3170 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3171 if (patchDesc->mUid != mUidCached) { 3172 ALOGV("getNewOutputDevice() device %08x forced by patch %d", 3173 outputDesc->device(), outputDesc->mPatchHandle); 3174 return outputDesc->device(); 3175 } 3176 } 3177 3178 // check the following by order of priority to request a routing change if necessary: 3179 // 1: the strategy enforced audible is active on the output: 3180 // use device for strategy enforced audible 3181 // 2: we are in call or the strategy phone is active on the output: 3182 // use device for strategy phone 3183 // 3: the strategy sonification is active on the output: 3184 // use device for strategy sonification 3185 // 4: the strategy "respectful" sonification is active on the output: 3186 // use device for strategy "respectful" sonification 3187 // 5: the strategy media is active on the output: 3188 // use device for strategy media 3189 // 6: the strategy DTMF is active on the output: 3190 // use device for strategy DTMF 3191 if (outputDesc->isStrategyActive(STRATEGY_ENFORCED_AUDIBLE)) { 3192 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 3193 } else if (isInCall() || 3194 outputDesc->isStrategyActive(STRATEGY_PHONE)) { 3195 device = getDeviceForStrategy(STRATEGY_PHONE, fromCache); 3196 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION)) { 3197 device = getDeviceForStrategy(STRATEGY_SONIFICATION, fromCache); 3198 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION_RESPECTFUL)) { 3199 device = getDeviceForStrategy(STRATEGY_SONIFICATION_RESPECTFUL, fromCache); 3200 } else if (outputDesc->isStrategyActive(STRATEGY_MEDIA)) { 3201 device = getDeviceForStrategy(STRATEGY_MEDIA, fromCache); 3202 } else if (outputDesc->isStrategyActive(STRATEGY_DTMF)) { 3203 device = getDeviceForStrategy(STRATEGY_DTMF, fromCache); 3204 } 3205 3206 ALOGV("getNewOutputDevice() selected device %x", device); 3207 return device; 3208} 3209 3210audio_devices_t AudioPolicyManager::getNewInputDevice(audio_io_handle_t input) 3211{ 3212 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 3213 3214 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 3215 if (index >= 0) { 3216 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3217 if (patchDesc->mUid != mUidCached) { 3218 ALOGV("getNewInputDevice() device %08x forced by patch %d", 3219 inputDesc->mDevice, inputDesc->mPatchHandle); 3220 return inputDesc->mDevice; 3221 } 3222 } 3223 3224 audio_devices_t device = getDeviceForInputSource(inputDesc->mInputSource); 3225 3226 ALOGV("getNewInputDevice() selected device %x", device); 3227 return device; 3228} 3229 3230uint32_t AudioPolicyManager::getStrategyForStream(audio_stream_type_t stream) { 3231 return (uint32_t)getStrategy(stream); 3232} 3233 3234audio_devices_t AudioPolicyManager::getDevicesForStream(audio_stream_type_t stream) { 3235 // By checking the range of stream before calling getStrategy, we avoid 3236 // getStrategy's behavior for invalid streams. getStrategy would do a ALOGE 3237 // and then return STRATEGY_MEDIA, but we want to return the empty set. 3238 if (stream < (audio_stream_type_t) 0 || stream >= AUDIO_STREAM_CNT) { 3239 return AUDIO_DEVICE_NONE; 3240 } 3241 audio_devices_t devices; 3242 AudioPolicyManager::routing_strategy strategy = getStrategy(stream); 3243 devices = getDeviceForStrategy(strategy, true /*fromCache*/); 3244 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(devices, mOutputs); 3245 for (size_t i = 0; i < outputs.size(); i++) { 3246 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 3247 if (outputDesc->isStrategyActive(strategy)) { 3248 devices = outputDesc->device(); 3249 break; 3250 } 3251 } 3252 return devices; 3253} 3254 3255AudioPolicyManager::routing_strategy AudioPolicyManager::getStrategy( 3256 audio_stream_type_t stream) { 3257 // stream to strategy mapping 3258 switch (stream) { 3259 case AUDIO_STREAM_VOICE_CALL: 3260 case AUDIO_STREAM_BLUETOOTH_SCO: 3261 return STRATEGY_PHONE; 3262 case AUDIO_STREAM_RING: 3263 case AUDIO_STREAM_ALARM: 3264 return STRATEGY_SONIFICATION; 3265 case AUDIO_STREAM_NOTIFICATION: 3266 return STRATEGY_SONIFICATION_RESPECTFUL; 3267 case AUDIO_STREAM_DTMF: 3268 return STRATEGY_DTMF; 3269 default: 3270 ALOGE("unknown stream type"); 3271 case AUDIO_STREAM_SYSTEM: 3272 // NOTE: SYSTEM stream uses MEDIA strategy because muting music and switching outputs 3273 // while key clicks are played produces a poor result 3274 case AUDIO_STREAM_TTS: 3275 case AUDIO_STREAM_MUSIC: 3276 return STRATEGY_MEDIA; 3277 case AUDIO_STREAM_ENFORCED_AUDIBLE: 3278 return STRATEGY_ENFORCED_AUDIBLE; 3279 } 3280} 3281 3282uint32_t AudioPolicyManager::getStrategyForAttr(const audio_attributes_t *attr) { 3283 // flags to strategy mapping 3284 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 3285 return (uint32_t) STRATEGY_ENFORCED_AUDIBLE; 3286 } 3287 3288 // usage to strategy mapping 3289 switch (attr->usage) { 3290 case AUDIO_USAGE_MEDIA: 3291 case AUDIO_USAGE_GAME: 3292 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 3293 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 3294 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 3295 return (uint32_t) STRATEGY_MEDIA; 3296 3297 case AUDIO_USAGE_VOICE_COMMUNICATION: 3298 return (uint32_t) STRATEGY_PHONE; 3299 3300 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 3301 return (uint32_t) STRATEGY_DTMF; 3302 3303 case AUDIO_USAGE_ALARM: 3304 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 3305 return (uint32_t) STRATEGY_SONIFICATION; 3306 3307 case AUDIO_USAGE_NOTIFICATION: 3308 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 3309 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 3310 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 3311 case AUDIO_USAGE_NOTIFICATION_EVENT: 3312 return (uint32_t) STRATEGY_SONIFICATION_RESPECTFUL; 3313 3314 case AUDIO_USAGE_UNKNOWN: 3315 default: 3316 return (uint32_t) STRATEGY_MEDIA; 3317 } 3318} 3319 3320void AudioPolicyManager::handleNotificationRoutingForStream(audio_stream_type_t stream) { 3321 switch(stream) { 3322 case AUDIO_STREAM_MUSIC: 3323 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 3324 updateDevicesAndOutputs(); 3325 break; 3326 default: 3327 break; 3328 } 3329} 3330 3331audio_devices_t AudioPolicyManager::getDeviceForStrategy(routing_strategy strategy, 3332 bool fromCache) 3333{ 3334 uint32_t device = AUDIO_DEVICE_NONE; 3335 3336 if (fromCache) { 3337 ALOGVV("getDeviceForStrategy() from cache strategy %d, device %x", 3338 strategy, mDeviceForStrategy[strategy]); 3339 return mDeviceForStrategy[strategy]; 3340 } 3341 audio_devices_t availableOutputDeviceTypes = mAvailableOutputDevices.types(); 3342 switch (strategy) { 3343 3344 case STRATEGY_SONIFICATION_RESPECTFUL: 3345 if (isInCall()) { 3346 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 3347 } else if (isStreamActiveRemotely(AUDIO_STREAM_MUSIC, 3348 SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { 3349 // while media is playing on a remote device, use the the sonification behavior. 3350 // Note that we test this usecase before testing if media is playing because 3351 // the isStreamActive() method only informs about the activity of a stream, not 3352 // if it's for local playback. Note also that we use the same delay between both tests 3353 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 3354 } else if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { 3355 // while media is playing (or has recently played), use the same device 3356 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); 3357 } else { 3358 // when media is not playing anymore, fall back on the sonification behavior 3359 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 3360 } 3361 3362 break; 3363 3364 case STRATEGY_DTMF: 3365 if (!isInCall()) { 3366 // when off call, DTMF strategy follows the same rules as MEDIA strategy 3367 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); 3368 break; 3369 } 3370 // when in call, DTMF and PHONE strategies follow the same rules 3371 // FALL THROUGH 3372 3373 case STRATEGY_PHONE: 3374 // for phone strategy, we first consider the forced use and then the available devices by order 3375 // of priority 3376 switch (mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]) { 3377 case AUDIO_POLICY_FORCE_BT_SCO: 3378 if (!isInCall() || strategy != STRATEGY_DTMF) { 3379 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT; 3380 if (device) break; 3381 } 3382 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET; 3383 if (device) break; 3384 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO; 3385 if (device) break; 3386 // if SCO device is requested but no SCO device is available, fall back to default case 3387 // FALL THROUGH 3388 3389 default: // FORCE_NONE 3390 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to A2DP 3391 if (!isInCall() && 3392 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 3393 (getA2dpOutput() != 0) && !mA2dpSuspended) { 3394 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; 3395 if (device) break; 3396 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; 3397 if (device) break; 3398 } 3399 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; 3400 if (device) break; 3401 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADSET; 3402 if (device) break; 3403 if (mPhoneState != AUDIO_MODE_IN_CALL) { 3404 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 3405 if (device) break; 3406 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 3407 if (device) break; 3408 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 3409 if (device) break; 3410 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 3411 if (device) break; 3412 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 3413 if (device) break; 3414 } 3415 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_EARPIECE; 3416 if (device) break; 3417 device = mDefaultOutputDevice->mDeviceType; 3418 if (device == AUDIO_DEVICE_NONE) { 3419 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE"); 3420 } 3421 break; 3422 3423 case AUDIO_POLICY_FORCE_SPEAKER: 3424 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to 3425 // A2DP speaker when forcing to speaker output 3426 if (!isInCall() && 3427 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 3428 (getA2dpOutput() != 0) && !mA2dpSuspended) { 3429 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; 3430 if (device) break; 3431 } 3432 if (mPhoneState != AUDIO_MODE_IN_CALL) { 3433 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 3434 if (device) break; 3435 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 3436 if (device) break; 3437 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 3438 if (device) break; 3439 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 3440 if (device) break; 3441 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 3442 if (device) break; 3443 } 3444 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 3445 if (device) break; 3446 device = mDefaultOutputDevice->mDeviceType; 3447 if (device == AUDIO_DEVICE_NONE) { 3448 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE, FORCE_SPEAKER"); 3449 } 3450 break; 3451 } 3452 break; 3453 3454 case STRATEGY_SONIFICATION: 3455 3456 // If incall, just select the STRATEGY_PHONE device: The rest of the behavior is handled by 3457 // handleIncallSonification(). 3458 if (isInCall()) { 3459 device = getDeviceForStrategy(STRATEGY_PHONE, false /*fromCache*/); 3460 break; 3461 } 3462 // FALL THROUGH 3463 3464 case STRATEGY_ENFORCED_AUDIBLE: 3465 // strategy STRATEGY_ENFORCED_AUDIBLE uses same routing policy as STRATEGY_SONIFICATION 3466 // except: 3467 // - when in call where it doesn't default to STRATEGY_PHONE behavior 3468 // - in countries where not enforced in which case it follows STRATEGY_MEDIA 3469 3470 if ((strategy == STRATEGY_SONIFICATION) || 3471 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED)) { 3472 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 3473 if (device == AUDIO_DEVICE_NONE) { 3474 ALOGE("getDeviceForStrategy() speaker device not found for STRATEGY_SONIFICATION"); 3475 } 3476 } 3477 // The second device used for sonification is the same as the device used by media strategy 3478 // FALL THROUGH 3479 3480 case STRATEGY_MEDIA: { 3481 uint32_t device2 = AUDIO_DEVICE_NONE; 3482 if (strategy != STRATEGY_SONIFICATION) { 3483 // no sonification on remote submix (e.g. WFD) 3484 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_REMOTE_SUBMIX; 3485 } 3486 if ((device2 == AUDIO_DEVICE_NONE) && 3487 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 3488 (getA2dpOutput() != 0) && !mA2dpSuspended) { 3489 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; 3490 if (device2 == AUDIO_DEVICE_NONE) { 3491 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; 3492 } 3493 if (device2 == AUDIO_DEVICE_NONE) { 3494 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; 3495 } 3496 } 3497 if (device2 == AUDIO_DEVICE_NONE) { 3498 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; 3499 } 3500 if (device2 == AUDIO_DEVICE_NONE) { 3501 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADSET; 3502 } 3503 if (device2 == AUDIO_DEVICE_NONE) { 3504 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 3505 } 3506 if (device2 == AUDIO_DEVICE_NONE) { 3507 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 3508 } 3509 if (device2 == AUDIO_DEVICE_NONE) { 3510 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 3511 } 3512 if ((device2 == AUDIO_DEVICE_NONE) && (strategy != STRATEGY_SONIFICATION)) { 3513 // no sonification on aux digital (e.g. HDMI) 3514 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 3515 } 3516 if ((device2 == AUDIO_DEVICE_NONE) && 3517 (mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK] == AUDIO_POLICY_FORCE_ANALOG_DOCK)) { 3518 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 3519 } 3520 if (device2 == AUDIO_DEVICE_NONE) { 3521 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 3522 } 3523 3524 // device is DEVICE_OUT_SPEAKER if we come from case STRATEGY_SONIFICATION or 3525 // STRATEGY_ENFORCED_AUDIBLE, AUDIO_DEVICE_NONE otherwise 3526 device |= device2; 3527 if (device) break; 3528 device = mDefaultOutputDevice->mDeviceType; 3529 if (device == AUDIO_DEVICE_NONE) { 3530 ALOGE("getDeviceForStrategy() no device found for STRATEGY_MEDIA"); 3531 } 3532 } break; 3533 3534 default: 3535 ALOGW("getDeviceForStrategy() unknown strategy: %d", strategy); 3536 break; 3537 } 3538 3539 ALOGVV("getDeviceForStrategy() strategy %d, device %x", strategy, device); 3540 return device; 3541} 3542 3543void AudioPolicyManager::updateDevicesAndOutputs() 3544{ 3545 for (int i = 0; i < NUM_STRATEGIES; i++) { 3546 mDeviceForStrategy[i] = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 3547 } 3548 mPreviousOutputs = mOutputs; 3549} 3550 3551uint32_t AudioPolicyManager::checkDeviceMuteStrategies(sp<AudioOutputDescriptor> outputDesc, 3552 audio_devices_t prevDevice, 3553 uint32_t delayMs) 3554{ 3555 // mute/unmute strategies using an incompatible device combination 3556 // if muting, wait for the audio in pcm buffer to be drained before proceeding 3557 // if unmuting, unmute only after the specified delay 3558 if (outputDesc->isDuplicated()) { 3559 return 0; 3560 } 3561 3562 uint32_t muteWaitMs = 0; 3563 audio_devices_t device = outputDesc->device(); 3564 bool shouldMute = outputDesc->isActive() && (popcount(device) >= 2); 3565 3566 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 3567 audio_devices_t curDevice = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 3568 bool mute = shouldMute && (curDevice & device) && (curDevice != device); 3569 bool doMute = false; 3570 3571 if (mute && !outputDesc->mStrategyMutedByDevice[i]) { 3572 doMute = true; 3573 outputDesc->mStrategyMutedByDevice[i] = true; 3574 } else if (!mute && outputDesc->mStrategyMutedByDevice[i]){ 3575 doMute = true; 3576 outputDesc->mStrategyMutedByDevice[i] = false; 3577 } 3578 if (doMute) { 3579 for (size_t j = 0; j < mOutputs.size(); j++) { 3580 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(j); 3581 // skip output if it does not share any device with current output 3582 if ((desc->supportedDevices() & outputDesc->supportedDevices()) 3583 == AUDIO_DEVICE_NONE) { 3584 continue; 3585 } 3586 audio_io_handle_t curOutput = mOutputs.keyAt(j); 3587 ALOGVV("checkDeviceMuteStrategies() %s strategy %d (curDevice %04x) on output %d", 3588 mute ? "muting" : "unmuting", i, curDevice, curOutput); 3589 setStrategyMute((routing_strategy)i, mute, curOutput, mute ? 0 : delayMs); 3590 if (desc->isStrategyActive((routing_strategy)i)) { 3591 if (mute) { 3592 // FIXME: should not need to double latency if volume could be applied 3593 // immediately by the audioflinger mixer. We must account for the delay 3594 // between now and the next time the audioflinger thread for this output 3595 // will process a buffer (which corresponds to one buffer size, 3596 // usually 1/2 or 1/4 of the latency). 3597 if (muteWaitMs < desc->latency() * 2) { 3598 muteWaitMs = desc->latency() * 2; 3599 } 3600 } 3601 } 3602 } 3603 } 3604 } 3605 3606 // temporary mute output if device selection changes to avoid volume bursts due to 3607 // different per device volumes 3608 if (outputDesc->isActive() && (device != prevDevice)) { 3609 if (muteWaitMs < outputDesc->latency() * 2) { 3610 muteWaitMs = outputDesc->latency() * 2; 3611 } 3612 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 3613 if (outputDesc->isStrategyActive((routing_strategy)i)) { 3614 setStrategyMute((routing_strategy)i, true, outputDesc->mIoHandle); 3615 // do tempMute unmute after twice the mute wait time 3616 setStrategyMute((routing_strategy)i, false, outputDesc->mIoHandle, 3617 muteWaitMs *2, device); 3618 } 3619 } 3620 } 3621 3622 // wait for the PCM output buffers to empty before proceeding with the rest of the command 3623 if (muteWaitMs > delayMs) { 3624 muteWaitMs -= delayMs; 3625 usleep(muteWaitMs * 1000); 3626 return muteWaitMs; 3627 } 3628 return 0; 3629} 3630 3631uint32_t AudioPolicyManager::setOutputDevice(audio_io_handle_t output, 3632 audio_devices_t device, 3633 bool force, 3634 int delayMs, 3635 audio_patch_handle_t *patchHandle) 3636{ 3637 ALOGV("setOutputDevice() output %d device %04x delayMs %d", output, device, delayMs); 3638 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 3639 AudioParameter param; 3640 uint32_t muteWaitMs; 3641 3642 if (outputDesc->isDuplicated()) { 3643 muteWaitMs = setOutputDevice(outputDesc->mOutput1->mIoHandle, device, force, delayMs); 3644 muteWaitMs += setOutputDevice(outputDesc->mOutput2->mIoHandle, device, force, delayMs); 3645 return muteWaitMs; 3646 } 3647 // no need to proceed if new device is not AUDIO_DEVICE_NONE and not supported by current 3648 // output profile 3649 if ((device != AUDIO_DEVICE_NONE) && 3650 ((device & outputDesc->mProfile->mSupportedDevices.types()) == 0)) { 3651 return 0; 3652 } 3653 3654 // filter devices according to output selected 3655 device = (audio_devices_t)(device & outputDesc->mProfile->mSupportedDevices.types()); 3656 3657 audio_devices_t prevDevice = outputDesc->mDevice; 3658 3659 ALOGV("setOutputDevice() prevDevice %04x", prevDevice); 3660 3661 if (device != AUDIO_DEVICE_NONE) { 3662 outputDesc->mDevice = device; 3663 } 3664 muteWaitMs = checkDeviceMuteStrategies(outputDesc, prevDevice, delayMs); 3665 3666 // Do not change the routing if: 3667 // - the requested device is AUDIO_DEVICE_NONE 3668 // - the requested device is the same as current device and force is not specified. 3669 // Doing this check here allows the caller to call setOutputDevice() without conditions 3670 if ((device == AUDIO_DEVICE_NONE || device == prevDevice) && !force) { 3671 ALOGV("setOutputDevice() setting same device %04x or null device for output %d", device, output); 3672 return muteWaitMs; 3673 } 3674 3675 ALOGV("setOutputDevice() changing device"); 3676 3677 // do the routing 3678 if (device == AUDIO_DEVICE_NONE) { 3679 resetOutputDevice(output, delayMs, NULL); 3680 } else { 3681 DeviceVector deviceList = mAvailableOutputDevices.getDevicesFromType(device); 3682 if (!deviceList.isEmpty()) { 3683 struct audio_patch patch; 3684 outputDesc->toAudioPortConfig(&patch.sources[0]); 3685 patch.num_sources = 1; 3686 patch.num_sinks = 0; 3687 for (size_t i = 0; i < deviceList.size() && i < AUDIO_PATCH_PORTS_MAX; i++) { 3688 deviceList.itemAt(i)->toAudioPortConfig(&patch.sinks[i]); 3689 patch.num_sinks++; 3690 } 3691 ssize_t index; 3692 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 3693 index = mAudioPatches.indexOfKey(*patchHandle); 3694 } else { 3695 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3696 } 3697 sp< AudioPatch> patchDesc; 3698 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 3699 if (index >= 0) { 3700 patchDesc = mAudioPatches.valueAt(index); 3701 afPatchHandle = patchDesc->mAfPatchHandle; 3702 } 3703 3704 status_t status = mpClientInterface->createAudioPatch(&patch, 3705 &afPatchHandle, 3706 delayMs); 3707 ALOGV("setOutputDevice() createAudioPatch returned %d patchHandle %d" 3708 "num_sources %d num_sinks %d", 3709 status, afPatchHandle, patch.num_sources, patch.num_sinks); 3710 if (status == NO_ERROR) { 3711 if (index < 0) { 3712 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 3713 &patch, mUidCached); 3714 addAudioPatch(patchDesc->mHandle, patchDesc); 3715 } else { 3716 patchDesc->mPatch = patch; 3717 } 3718 patchDesc->mAfPatchHandle = afPatchHandle; 3719 patchDesc->mUid = mUidCached; 3720 if (patchHandle) { 3721 *patchHandle = patchDesc->mHandle; 3722 } 3723 outputDesc->mPatchHandle = patchDesc->mHandle; 3724 nextAudioPortGeneration(); 3725 mpClientInterface->onAudioPatchListUpdate(); 3726 } 3727 } 3728 } 3729 3730 // update stream volumes according to new device 3731 applyStreamVolumes(output, device, delayMs); 3732 3733 return muteWaitMs; 3734} 3735 3736status_t AudioPolicyManager::resetOutputDevice(audio_io_handle_t output, 3737 int delayMs, 3738 audio_patch_handle_t *patchHandle) 3739{ 3740 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 3741 ssize_t index; 3742 if (patchHandle) { 3743 index = mAudioPatches.indexOfKey(*patchHandle); 3744 } else { 3745 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3746 } 3747 if (index < 0) { 3748 return INVALID_OPERATION; 3749 } 3750 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3751 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, delayMs); 3752 ALOGV("resetOutputDevice() releaseAudioPatch returned %d", status); 3753 outputDesc->mPatchHandle = 0; 3754 removeAudioPatch(patchDesc->mHandle); 3755 nextAudioPortGeneration(); 3756 mpClientInterface->onAudioPatchListUpdate(); 3757 return status; 3758} 3759 3760status_t AudioPolicyManager::setInputDevice(audio_io_handle_t input, 3761 audio_devices_t device, 3762 bool force, 3763 audio_patch_handle_t *patchHandle) 3764{ 3765 status_t status = NO_ERROR; 3766 3767 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 3768 if ((device != AUDIO_DEVICE_NONE) && ((device != inputDesc->mDevice) || force)) { 3769 inputDesc->mDevice = device; 3770 3771 DeviceVector deviceList = mAvailableInputDevices.getDevicesFromType(device); 3772 if (!deviceList.isEmpty()) { 3773 struct audio_patch patch; 3774 inputDesc->toAudioPortConfig(&patch.sinks[0]); 3775 patch.num_sinks = 1; 3776 //only one input device for now 3777 deviceList.itemAt(0)->toAudioPortConfig(&patch.sources[0]); 3778 patch.num_sources = 1; 3779 ssize_t index; 3780 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 3781 index = mAudioPatches.indexOfKey(*patchHandle); 3782 } else { 3783 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 3784 } 3785 sp< AudioPatch> patchDesc; 3786 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 3787 if (index >= 0) { 3788 patchDesc = mAudioPatches.valueAt(index); 3789 afPatchHandle = patchDesc->mAfPatchHandle; 3790 } 3791 3792 status_t status = mpClientInterface->createAudioPatch(&patch, 3793 &afPatchHandle, 3794 0); 3795 ALOGV("setInputDevice() createAudioPatch returned %d patchHandle %d", 3796 status, afPatchHandle); 3797 if (status == NO_ERROR) { 3798 if (index < 0) { 3799 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 3800 &patch, mUidCached); 3801 addAudioPatch(patchDesc->mHandle, patchDesc); 3802 } else { 3803 patchDesc->mPatch = patch; 3804 } 3805 patchDesc->mAfPatchHandle = afPatchHandle; 3806 patchDesc->mUid = mUidCached; 3807 if (patchHandle) { 3808 *patchHandle = patchDesc->mHandle; 3809 } 3810 inputDesc->mPatchHandle = patchDesc->mHandle; 3811 nextAudioPortGeneration(); 3812 mpClientInterface->onAudioPatchListUpdate(); 3813 } 3814 } 3815 } 3816 return status; 3817} 3818 3819status_t AudioPolicyManager::resetInputDevice(audio_io_handle_t input, 3820 audio_patch_handle_t *patchHandle) 3821{ 3822 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 3823 ssize_t index; 3824 if (patchHandle) { 3825 index = mAudioPatches.indexOfKey(*patchHandle); 3826 } else { 3827 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 3828 } 3829 if (index < 0) { 3830 return INVALID_OPERATION; 3831 } 3832 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3833 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 3834 ALOGV("resetInputDevice() releaseAudioPatch returned %d", status); 3835 inputDesc->mPatchHandle = 0; 3836 removeAudioPatch(patchDesc->mHandle); 3837 nextAudioPortGeneration(); 3838 mpClientInterface->onAudioPatchListUpdate(); 3839 return status; 3840} 3841 3842sp<AudioPolicyManager::IOProfile> AudioPolicyManager::getInputProfile(audio_devices_t device, 3843 uint32_t samplingRate, 3844 audio_format_t format, 3845 audio_channel_mask_t channelMask) 3846{ 3847 // Choose an input profile based on the requested capture parameters: select the first available 3848 // profile supporting all requested parameters. 3849 3850 for (size_t i = 0; i < mHwModules.size(); i++) 3851 { 3852 if (mHwModules[i]->mHandle == 0) { 3853 continue; 3854 } 3855 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 3856 { 3857 sp<IOProfile> profile = mHwModules[i]->mInputProfiles[j]; 3858 // profile->log(); 3859 if (profile->isCompatibleProfile(device, samplingRate, format, 3860 channelMask, AUDIO_OUTPUT_FLAG_NONE)) { 3861 return profile; 3862 } 3863 } 3864 } 3865 return NULL; 3866} 3867 3868audio_devices_t AudioPolicyManager::getDeviceForInputSource(audio_source_t inputSource) 3869{ 3870 uint32_t device = AUDIO_DEVICE_NONE; 3871 audio_devices_t availableDeviceTypes = mAvailableInputDevices.types() & 3872 ~AUDIO_DEVICE_BIT_IN; 3873 switch (inputSource) { 3874 case AUDIO_SOURCE_VOICE_UPLINK: 3875 if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) { 3876 device = AUDIO_DEVICE_IN_VOICE_CALL; 3877 break; 3878 } 3879 // FALL THROUGH 3880 3881 case AUDIO_SOURCE_DEFAULT: 3882 case AUDIO_SOURCE_MIC: 3883 if (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_A2DP) { 3884 device = AUDIO_DEVICE_IN_BLUETOOTH_A2DP; 3885 break; 3886 } 3887 // FALL THROUGH 3888 3889 case AUDIO_SOURCE_VOICE_RECOGNITION: 3890 case AUDIO_SOURCE_HOTWORD: 3891 case AUDIO_SOURCE_VOICE_COMMUNICATION: 3892 if (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO && 3893 availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) { 3894 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 3895 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 3896 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 3897 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 3898 device = AUDIO_DEVICE_IN_USB_DEVICE; 3899 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 3900 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 3901 } 3902 break; 3903 case AUDIO_SOURCE_CAMCORDER: 3904 if (availableDeviceTypes & AUDIO_DEVICE_IN_BACK_MIC) { 3905 device = AUDIO_DEVICE_IN_BACK_MIC; 3906 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 3907 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 3908 } 3909 break; 3910 case AUDIO_SOURCE_VOICE_DOWNLINK: 3911 case AUDIO_SOURCE_VOICE_CALL: 3912 if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) { 3913 device = AUDIO_DEVICE_IN_VOICE_CALL; 3914 } 3915 break; 3916 case AUDIO_SOURCE_REMOTE_SUBMIX: 3917 if (availableDeviceTypes & AUDIO_DEVICE_IN_REMOTE_SUBMIX) { 3918 device = AUDIO_DEVICE_IN_REMOTE_SUBMIX; 3919 } 3920 break; 3921 default: 3922 ALOGW("getDeviceForInputSource() invalid input source %d", inputSource); 3923 break; 3924 } 3925 ALOGV("getDeviceForInputSource()input source %d, device %08x", inputSource, device); 3926 return device; 3927} 3928 3929bool AudioPolicyManager::isVirtualInputDevice(audio_devices_t device) 3930{ 3931 if ((device & AUDIO_DEVICE_BIT_IN) != 0) { 3932 device &= ~AUDIO_DEVICE_BIT_IN; 3933 if ((popcount(device) == 1) && ((device & ~APM_AUDIO_IN_DEVICE_VIRTUAL_ALL) == 0)) 3934 return true; 3935 } 3936 return false; 3937} 3938 3939audio_io_handle_t AudioPolicyManager::getActiveInput(bool ignoreVirtualInputs) 3940{ 3941 for (size_t i = 0; i < mInputs.size(); i++) { 3942 const sp<AudioInputDescriptor> input_descriptor = mInputs.valueAt(i); 3943 if ((input_descriptor->mRefCount > 0) 3944 && (!ignoreVirtualInputs || !isVirtualInputDevice(input_descriptor->mDevice))) { 3945 return mInputs.keyAt(i); 3946 } 3947 } 3948 return 0; 3949} 3950 3951 3952audio_devices_t AudioPolicyManager::getDeviceForVolume(audio_devices_t device) 3953{ 3954 if (device == AUDIO_DEVICE_NONE) { 3955 // this happens when forcing a route update and no track is active on an output. 3956 // In this case the returned category is not important. 3957 device = AUDIO_DEVICE_OUT_SPEAKER; 3958 } else if (popcount(device) > 1) { 3959 // Multiple device selection is either: 3960 // - speaker + one other device: give priority to speaker in this case. 3961 // - one A2DP device + another device: happens with duplicated output. In this case 3962 // retain the device on the A2DP output as the other must not correspond to an active 3963 // selection if not the speaker. 3964 if (device & AUDIO_DEVICE_OUT_SPEAKER) { 3965 device = AUDIO_DEVICE_OUT_SPEAKER; 3966 } else { 3967 device = (audio_devices_t)(device & AUDIO_DEVICE_OUT_ALL_A2DP); 3968 } 3969 } 3970 3971 ALOGW_IF(popcount(device) != 1, 3972 "getDeviceForVolume() invalid device combination: %08x", 3973 device); 3974 3975 return device; 3976} 3977 3978AudioPolicyManager::device_category AudioPolicyManager::getDeviceCategory(audio_devices_t device) 3979{ 3980 switch(getDeviceForVolume(device)) { 3981 case AUDIO_DEVICE_OUT_EARPIECE: 3982 return DEVICE_CATEGORY_EARPIECE; 3983 case AUDIO_DEVICE_OUT_WIRED_HEADSET: 3984 case AUDIO_DEVICE_OUT_WIRED_HEADPHONE: 3985 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO: 3986 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET: 3987 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP: 3988 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES: 3989 return DEVICE_CATEGORY_HEADSET; 3990 case AUDIO_DEVICE_OUT_SPEAKER: 3991 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT: 3992 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER: 3993 case AUDIO_DEVICE_OUT_AUX_DIGITAL: 3994 case AUDIO_DEVICE_OUT_USB_ACCESSORY: 3995 case AUDIO_DEVICE_OUT_USB_DEVICE: 3996 case AUDIO_DEVICE_OUT_REMOTE_SUBMIX: 3997 default: 3998 return DEVICE_CATEGORY_SPEAKER; 3999 } 4000} 4001 4002float AudioPolicyManager::volIndexToAmpl(audio_devices_t device, const StreamDescriptor& streamDesc, 4003 int indexInUi) 4004{ 4005 device_category deviceCategory = getDeviceCategory(device); 4006 const VolumeCurvePoint *curve = streamDesc.mVolumeCurve[deviceCategory]; 4007 4008 // the volume index in the UI is relative to the min and max volume indices for this stream type 4009 int nbSteps = 1 + curve[VOLMAX].mIndex - 4010 curve[VOLMIN].mIndex; 4011 int volIdx = (nbSteps * (indexInUi - streamDesc.mIndexMin)) / 4012 (streamDesc.mIndexMax - streamDesc.mIndexMin); 4013 4014 // find what part of the curve this index volume belongs to, or if it's out of bounds 4015 int segment = 0; 4016 if (volIdx < curve[VOLMIN].mIndex) { // out of bounds 4017 return 0.0f; 4018 } else if (volIdx < curve[VOLKNEE1].mIndex) { 4019 segment = 0; 4020 } else if (volIdx < curve[VOLKNEE2].mIndex) { 4021 segment = 1; 4022 } else if (volIdx <= curve[VOLMAX].mIndex) { 4023 segment = 2; 4024 } else { // out of bounds 4025 return 1.0f; 4026 } 4027 4028 // linear interpolation in the attenuation table in dB 4029 float decibels = curve[segment].mDBAttenuation + 4030 ((float)(volIdx - curve[segment].mIndex)) * 4031 ( (curve[segment+1].mDBAttenuation - 4032 curve[segment].mDBAttenuation) / 4033 ((float)(curve[segment+1].mIndex - 4034 curve[segment].mIndex)) ); 4035 4036 float amplification = exp( decibels * 0.115129f); // exp( dB * ln(10) / 20 ) 4037 4038 ALOGVV("VOLUME vol index=[%d %d %d], dB=[%.1f %.1f %.1f] ampl=%.5f", 4039 curve[segment].mIndex, volIdx, 4040 curve[segment+1].mIndex, 4041 curve[segment].mDBAttenuation, 4042 decibels, 4043 curve[segment+1].mDBAttenuation, 4044 amplification); 4045 4046 return amplification; 4047} 4048 4049const AudioPolicyManager::VolumeCurvePoint 4050 AudioPolicyManager::sDefaultVolumeCurve[AudioPolicyManager::VOLCNT] = { 4051 {1, -49.5f}, {33, -33.5f}, {66, -17.0f}, {100, 0.0f} 4052}; 4053 4054const AudioPolicyManager::VolumeCurvePoint 4055 AudioPolicyManager::sDefaultMediaVolumeCurve[AudioPolicyManager::VOLCNT] = { 4056 {1, -58.0f}, {20, -40.0f}, {60, -17.0f}, {100, 0.0f} 4057}; 4058 4059const AudioPolicyManager::VolumeCurvePoint 4060 AudioPolicyManager::sSpeakerMediaVolumeCurve[AudioPolicyManager::VOLCNT] = { 4061 {1, -56.0f}, {20, -34.0f}, {60, -11.0f}, {100, 0.0f} 4062}; 4063 4064const AudioPolicyManager::VolumeCurvePoint 4065 AudioPolicyManager::sSpeakerMediaVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 4066 {1, -56.0f}, {20, -34.0f}, {86, -10.0f}, {100, 0.0f} 4067}; 4068 4069const AudioPolicyManager::VolumeCurvePoint 4070 AudioPolicyManager::sSpeakerSonificationVolumeCurve[AudioPolicyManager::VOLCNT] = { 4071 {1, -29.7f}, {33, -20.1f}, {66, -10.2f}, {100, 0.0f} 4072}; 4073 4074const AudioPolicyManager::VolumeCurvePoint 4075 AudioPolicyManager::sSpeakerSonificationVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 4076 {1, -35.7f}, {33, -26.1f}, {66, -13.2f}, {100, 0.0f} 4077}; 4078 4079// AUDIO_STREAM_SYSTEM, AUDIO_STREAM_ENFORCED_AUDIBLE and AUDIO_STREAM_DTMF volume tracks 4080// AUDIO_STREAM_RING on phones and AUDIO_STREAM_MUSIC on tablets. 4081// AUDIO_STREAM_DTMF tracks AUDIO_STREAM_VOICE_CALL while in call (See AudioService.java). 4082// The range is constrained between -24dB and -6dB over speaker and -30dB and -18dB over headset. 4083 4084const AudioPolicyManager::VolumeCurvePoint 4085 AudioPolicyManager::sDefaultSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 4086 {1, -24.0f}, {33, -18.0f}, {66, -12.0f}, {100, -6.0f} 4087}; 4088 4089const AudioPolicyManager::VolumeCurvePoint 4090 AudioPolicyManager::sDefaultSystemVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 4091 {1, -34.0f}, {33, -24.0f}, {66, -15.0f}, {100, -6.0f} 4092}; 4093 4094const AudioPolicyManager::VolumeCurvePoint 4095 AudioPolicyManager::sHeadsetSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 4096 {1, -30.0f}, {33, -26.0f}, {66, -22.0f}, {100, -18.0f} 4097}; 4098 4099const AudioPolicyManager::VolumeCurvePoint 4100 AudioPolicyManager::sDefaultVoiceVolumeCurve[AudioPolicyManager::VOLCNT] = { 4101 {0, -42.0f}, {33, -28.0f}, {66, -14.0f}, {100, 0.0f} 4102}; 4103 4104const AudioPolicyManager::VolumeCurvePoint 4105 AudioPolicyManager::sSpeakerVoiceVolumeCurve[AudioPolicyManager::VOLCNT] = { 4106 {0, -24.0f}, {33, -16.0f}, {66, -8.0f}, {100, 0.0f} 4107}; 4108 4109const AudioPolicyManager::VolumeCurvePoint 4110 *AudioPolicyManager::sVolumeProfiles[AUDIO_STREAM_CNT] 4111 [AudioPolicyManager::DEVICE_CATEGORY_CNT] = { 4112 { // AUDIO_STREAM_VOICE_CALL 4113 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 4114 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4115 sDefaultVoiceVolumeCurve // DEVICE_CATEGORY_EARPIECE 4116 }, 4117 { // AUDIO_STREAM_SYSTEM 4118 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 4119 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4120 sDefaultSystemVolumeCurve // DEVICE_CATEGORY_EARPIECE 4121 }, 4122 { // AUDIO_STREAM_RING 4123 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 4124 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4125 sDefaultVolumeCurve // DEVICE_CATEGORY_EARPIECE 4126 }, 4127 { // AUDIO_STREAM_MUSIC 4128 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 4129 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4130 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EARPIECE 4131 }, 4132 { // AUDIO_STREAM_ALARM 4133 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 4134 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4135 sDefaultVolumeCurve // DEVICE_CATEGORY_EARPIECE 4136 }, 4137 { // AUDIO_STREAM_NOTIFICATION 4138 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 4139 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4140 sDefaultVolumeCurve // DEVICE_CATEGORY_EARPIECE 4141 }, 4142 { // AUDIO_STREAM_BLUETOOTH_SCO 4143 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 4144 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4145 sDefaultVoiceVolumeCurve // DEVICE_CATEGORY_EARPIECE 4146 }, 4147 { // AUDIO_STREAM_ENFORCED_AUDIBLE 4148 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 4149 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4150 sDefaultSystemVolumeCurve // DEVICE_CATEGORY_EARPIECE 4151 }, 4152 { // AUDIO_STREAM_DTMF 4153 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 4154 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4155 sDefaultSystemVolumeCurve // DEVICE_CATEGORY_EARPIECE 4156 }, 4157 { // AUDIO_STREAM_TTS 4158 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 4159 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4160 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EARPIECE 4161 }, 4162}; 4163 4164void AudioPolicyManager::initializeVolumeCurves() 4165{ 4166 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 4167 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 4168 mStreams[i].mVolumeCurve[j] = 4169 sVolumeProfiles[i][j]; 4170 } 4171 } 4172 4173 // Check availability of DRC on speaker path: if available, override some of the speaker curves 4174 if (mSpeakerDrcEnabled) { 4175 mStreams[AUDIO_STREAM_SYSTEM].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 4176 sDefaultSystemVolumeCurveDrc; 4177 mStreams[AUDIO_STREAM_RING].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 4178 sSpeakerSonificationVolumeCurveDrc; 4179 mStreams[AUDIO_STREAM_ALARM].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 4180 sSpeakerSonificationVolumeCurveDrc; 4181 mStreams[AUDIO_STREAM_NOTIFICATION].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 4182 sSpeakerSonificationVolumeCurveDrc; 4183 mStreams[AUDIO_STREAM_MUSIC].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 4184 sSpeakerMediaVolumeCurveDrc; 4185 } 4186} 4187 4188float AudioPolicyManager::computeVolume(audio_stream_type_t stream, 4189 int index, 4190 audio_io_handle_t output, 4191 audio_devices_t device) 4192{ 4193 float volume = 1.0; 4194 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4195 StreamDescriptor &streamDesc = mStreams[stream]; 4196 4197 if (device == AUDIO_DEVICE_NONE) { 4198 device = outputDesc->device(); 4199 } 4200 4201 // if volume is not 0 (not muted), force media volume to max on digital output 4202 if (stream == AUDIO_STREAM_MUSIC && 4203 index != mStreams[stream].mIndexMin && 4204 (device == AUDIO_DEVICE_OUT_AUX_DIGITAL || 4205 device == AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET || 4206 device == AUDIO_DEVICE_OUT_USB_ACCESSORY || 4207 device == AUDIO_DEVICE_OUT_USB_DEVICE)) { 4208 return 1.0; 4209 } 4210 4211 volume = volIndexToAmpl(device, streamDesc, index); 4212 4213 // if a headset is connected, apply the following rules to ring tones and notifications 4214 // to avoid sound level bursts in user's ears: 4215 // - always attenuate ring tones and notifications volume by 6dB 4216 // - if music is playing, always limit the volume to current music volume, 4217 // with a minimum threshold at -36dB so that notification is always perceived. 4218 const routing_strategy stream_strategy = getStrategy(stream); 4219 if ((device & (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP | 4220 AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES | 4221 AUDIO_DEVICE_OUT_WIRED_HEADSET | 4222 AUDIO_DEVICE_OUT_WIRED_HEADPHONE)) && 4223 ((stream_strategy == STRATEGY_SONIFICATION) 4224 || (stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL) 4225 || (stream == AUDIO_STREAM_SYSTEM) 4226 || ((stream_strategy == STRATEGY_ENFORCED_AUDIBLE) && 4227 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_NONE))) && 4228 streamDesc.mCanBeMuted) { 4229 volume *= SONIFICATION_HEADSET_VOLUME_FACTOR; 4230 // when the phone is ringing we must consider that music could have been paused just before 4231 // by the music application and behave as if music was active if the last music track was 4232 // just stopped 4233 if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY) || 4234 mLimitRingtoneVolume) { 4235 audio_devices_t musicDevice = getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/); 4236 float musicVol = computeVolume(AUDIO_STREAM_MUSIC, 4237 mStreams[AUDIO_STREAM_MUSIC].getVolumeIndex(musicDevice), 4238 output, 4239 musicDevice); 4240 float minVol = (musicVol > SONIFICATION_HEADSET_VOLUME_MIN) ? 4241 musicVol : SONIFICATION_HEADSET_VOLUME_MIN; 4242 if (volume > minVol) { 4243 volume = minVol; 4244 ALOGV("computeVolume limiting volume to %f musicVol %f", minVol, musicVol); 4245 } 4246 } 4247 } 4248 4249 return volume; 4250} 4251 4252status_t AudioPolicyManager::checkAndSetVolume(audio_stream_type_t stream, 4253 int index, 4254 audio_io_handle_t output, 4255 audio_devices_t device, 4256 int delayMs, 4257 bool force) 4258{ 4259 4260 // do not change actual stream volume if the stream is muted 4261 if (mOutputs.valueFor(output)->mMuteCount[stream] != 0) { 4262 ALOGVV("checkAndSetVolume() stream %d muted count %d", 4263 stream, mOutputs.valueFor(output)->mMuteCount[stream]); 4264 return NO_ERROR; 4265 } 4266 4267 // do not change in call volume if bluetooth is connected and vice versa 4268 if ((stream == AUDIO_STREAM_VOICE_CALL && 4269 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO) || 4270 (stream == AUDIO_STREAM_BLUETOOTH_SCO && 4271 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] != AUDIO_POLICY_FORCE_BT_SCO)) { 4272 ALOGV("checkAndSetVolume() cannot set stream %d volume with force use = %d for comm", 4273 stream, mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]); 4274 return INVALID_OPERATION; 4275 } 4276 4277 float volume = computeVolume(stream, index, output, device); 4278 // We actually change the volume if: 4279 // - the float value returned by computeVolume() changed 4280 // - the force flag is set 4281 if (volume != mOutputs.valueFor(output)->mCurVolume[stream] || 4282 force) { 4283 mOutputs.valueFor(output)->mCurVolume[stream] = volume; 4284 ALOGVV("checkAndSetVolume() for output %d stream %d, volume %f, delay %d", output, stream, volume, delayMs); 4285 // Force VOICE_CALL to track BLUETOOTH_SCO stream volume when bluetooth audio is 4286 // enabled 4287 if (stream == AUDIO_STREAM_BLUETOOTH_SCO) { 4288 mpClientInterface->setStreamVolume(AUDIO_STREAM_VOICE_CALL, volume, output, delayMs); 4289 } 4290 mpClientInterface->setStreamVolume(stream, volume, output, delayMs); 4291 } 4292 4293 if (stream == AUDIO_STREAM_VOICE_CALL || 4294 stream == AUDIO_STREAM_BLUETOOTH_SCO) { 4295 float voiceVolume; 4296 // Force voice volume to max for bluetooth SCO as volume is managed by the headset 4297 if (stream == AUDIO_STREAM_VOICE_CALL) { 4298 voiceVolume = (float)index/(float)mStreams[stream].mIndexMax; 4299 } else { 4300 voiceVolume = 1.0; 4301 } 4302 4303 if (voiceVolume != mLastVoiceVolume && output == mPrimaryOutput) { 4304 mpClientInterface->setVoiceVolume(voiceVolume, delayMs); 4305 mLastVoiceVolume = voiceVolume; 4306 } 4307 } 4308 4309 return NO_ERROR; 4310} 4311 4312void AudioPolicyManager::applyStreamVolumes(audio_io_handle_t output, 4313 audio_devices_t device, 4314 int delayMs, 4315 bool force) 4316{ 4317 ALOGVV("applyStreamVolumes() for output %d and device %x", output, device); 4318 4319 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 4320 checkAndSetVolume((audio_stream_type_t)stream, 4321 mStreams[stream].getVolumeIndex(device), 4322 output, 4323 device, 4324 delayMs, 4325 force); 4326 } 4327} 4328 4329void AudioPolicyManager::setStrategyMute(routing_strategy strategy, 4330 bool on, 4331 audio_io_handle_t output, 4332 int delayMs, 4333 audio_devices_t device) 4334{ 4335 ALOGVV("setStrategyMute() strategy %d, mute %d, output %d", strategy, on, output); 4336 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 4337 if (getStrategy((audio_stream_type_t)stream) == strategy) { 4338 setStreamMute((audio_stream_type_t)stream, on, output, delayMs, device); 4339 } 4340 } 4341} 4342 4343void AudioPolicyManager::setStreamMute(audio_stream_type_t stream, 4344 bool on, 4345 audio_io_handle_t output, 4346 int delayMs, 4347 audio_devices_t device) 4348{ 4349 StreamDescriptor &streamDesc = mStreams[stream]; 4350 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4351 if (device == AUDIO_DEVICE_NONE) { 4352 device = outputDesc->device(); 4353 } 4354 4355 ALOGVV("setStreamMute() stream %d, mute %d, output %d, mMuteCount %d device %04x", 4356 stream, on, output, outputDesc->mMuteCount[stream], device); 4357 4358 if (on) { 4359 if (outputDesc->mMuteCount[stream] == 0) { 4360 if (streamDesc.mCanBeMuted && 4361 ((stream != AUDIO_STREAM_ENFORCED_AUDIBLE) || 4362 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_NONE))) { 4363 checkAndSetVolume(stream, 0, output, device, delayMs); 4364 } 4365 } 4366 // increment mMuteCount after calling checkAndSetVolume() so that volume change is not ignored 4367 outputDesc->mMuteCount[stream]++; 4368 } else { 4369 if (outputDesc->mMuteCount[stream] == 0) { 4370 ALOGV("setStreamMute() unmuting non muted stream!"); 4371 return; 4372 } 4373 if (--outputDesc->mMuteCount[stream] == 0) { 4374 checkAndSetVolume(stream, 4375 streamDesc.getVolumeIndex(device), 4376 output, 4377 device, 4378 delayMs); 4379 } 4380 } 4381} 4382 4383void AudioPolicyManager::handleIncallSonification(audio_stream_type_t stream, 4384 bool starting, bool stateChange) 4385{ 4386 // if the stream pertains to sonification strategy and we are in call we must 4387 // mute the stream if it is low visibility. If it is high visibility, we must play a tone 4388 // in the device used for phone strategy and play the tone if the selected device does not 4389 // interfere with the device used for phone strategy 4390 // if stateChange is true, we are called from setPhoneState() and we must mute or unmute as 4391 // many times as there are active tracks on the output 4392 const routing_strategy stream_strategy = getStrategy(stream); 4393 if ((stream_strategy == STRATEGY_SONIFICATION) || 4394 ((stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL))) { 4395 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 4396 ALOGV("handleIncallSonification() stream %d starting %d device %x stateChange %d", 4397 stream, starting, outputDesc->mDevice, stateChange); 4398 if (outputDesc->mRefCount[stream]) { 4399 int muteCount = 1; 4400 if (stateChange) { 4401 muteCount = outputDesc->mRefCount[stream]; 4402 } 4403 if (audio_is_low_visibility(stream)) { 4404 ALOGV("handleIncallSonification() low visibility, muteCount %d", muteCount); 4405 for (int i = 0; i < muteCount; i++) { 4406 setStreamMute(stream, starting, mPrimaryOutput); 4407 } 4408 } else { 4409 ALOGV("handleIncallSonification() high visibility"); 4410 if (outputDesc->device() & 4411 getDeviceForStrategy(STRATEGY_PHONE, true /*fromCache*/)) { 4412 ALOGV("handleIncallSonification() high visibility muted, muteCount %d", muteCount); 4413 for (int i = 0; i < muteCount; i++) { 4414 setStreamMute(stream, starting, mPrimaryOutput); 4415 } 4416 } 4417 if (starting) { 4418 mpClientInterface->startTone(AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION, 4419 AUDIO_STREAM_VOICE_CALL); 4420 } else { 4421 mpClientInterface->stopTone(); 4422 } 4423 } 4424 } 4425 } 4426} 4427 4428bool AudioPolicyManager::isInCall() 4429{ 4430 return isStateInCall(mPhoneState); 4431} 4432 4433bool AudioPolicyManager::isStateInCall(int state) { 4434 return ((state == AUDIO_MODE_IN_CALL) || 4435 (state == AUDIO_MODE_IN_COMMUNICATION)); 4436} 4437 4438uint32_t AudioPolicyManager::getMaxEffectsCpuLoad() 4439{ 4440 return MAX_EFFECTS_CPU_LOAD; 4441} 4442 4443uint32_t AudioPolicyManager::getMaxEffectsMemory() 4444{ 4445 return MAX_EFFECTS_MEMORY; 4446} 4447 4448 4449// --- AudioOutputDescriptor class implementation 4450 4451AudioPolicyManager::AudioOutputDescriptor::AudioOutputDescriptor( 4452 const sp<IOProfile>& profile) 4453 : mId(0), mIoHandle(0), mLatency(0), 4454 mFlags((audio_output_flags_t)0), mDevice(AUDIO_DEVICE_NONE), mPatchHandle(0), 4455 mOutput1(0), mOutput2(0), mProfile(profile), mDirectOpenCount(0) 4456{ 4457 // clear usage count for all stream types 4458 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 4459 mRefCount[i] = 0; 4460 mCurVolume[i] = -1.0; 4461 mMuteCount[i] = 0; 4462 mStopTime[i] = 0; 4463 } 4464 for (int i = 0; i < NUM_STRATEGIES; i++) { 4465 mStrategyMutedByDevice[i] = false; 4466 } 4467 if (profile != NULL) { 4468 mAudioPort = profile; 4469 mSamplingRate = profile->mSamplingRates[0]; 4470 mFormat = profile->mFormats[0]; 4471 mChannelMask = profile->mChannelMasks[0]; 4472 if (profile->mGains.size() > 0) { 4473 profile->mGains[0]->getDefaultConfig(&mGain); 4474 } 4475 mFlags = profile->mFlags; 4476 } 4477} 4478 4479audio_devices_t AudioPolicyManager::AudioOutputDescriptor::device() const 4480{ 4481 if (isDuplicated()) { 4482 return (audio_devices_t)(mOutput1->mDevice | mOutput2->mDevice); 4483 } else { 4484 return mDevice; 4485 } 4486} 4487 4488uint32_t AudioPolicyManager::AudioOutputDescriptor::latency() 4489{ 4490 if (isDuplicated()) { 4491 return (mOutput1->mLatency > mOutput2->mLatency) ? mOutput1->mLatency : mOutput2->mLatency; 4492 } else { 4493 return mLatency; 4494 } 4495} 4496 4497bool AudioPolicyManager::AudioOutputDescriptor::sharesHwModuleWith( 4498 const sp<AudioOutputDescriptor> outputDesc) 4499{ 4500 if (isDuplicated()) { 4501 return mOutput1->sharesHwModuleWith(outputDesc) || mOutput2->sharesHwModuleWith(outputDesc); 4502 } else if (outputDesc->isDuplicated()){ 4503 return sharesHwModuleWith(outputDesc->mOutput1) || sharesHwModuleWith(outputDesc->mOutput2); 4504 } else { 4505 return (mProfile->mModule == outputDesc->mProfile->mModule); 4506 } 4507} 4508 4509void AudioPolicyManager::AudioOutputDescriptor::changeRefCount(audio_stream_type_t stream, 4510 int delta) 4511{ 4512 // forward usage count change to attached outputs 4513 if (isDuplicated()) { 4514 mOutput1->changeRefCount(stream, delta); 4515 mOutput2->changeRefCount(stream, delta); 4516 } 4517 if ((delta + (int)mRefCount[stream]) < 0) { 4518 ALOGW("changeRefCount() invalid delta %d for stream %d, refCount %d", 4519 delta, stream, mRefCount[stream]); 4520 mRefCount[stream] = 0; 4521 return; 4522 } 4523 mRefCount[stream] += delta; 4524 ALOGV("changeRefCount() stream %d, count %d", stream, mRefCount[stream]); 4525} 4526 4527audio_devices_t AudioPolicyManager::AudioOutputDescriptor::supportedDevices() 4528{ 4529 if (isDuplicated()) { 4530 return (audio_devices_t)(mOutput1->supportedDevices() | mOutput2->supportedDevices()); 4531 } else { 4532 return mProfile->mSupportedDevices.types() ; 4533 } 4534} 4535 4536bool AudioPolicyManager::AudioOutputDescriptor::isActive(uint32_t inPastMs) const 4537{ 4538 return isStrategyActive(NUM_STRATEGIES, inPastMs); 4539} 4540 4541bool AudioPolicyManager::AudioOutputDescriptor::isStrategyActive(routing_strategy strategy, 4542 uint32_t inPastMs, 4543 nsecs_t sysTime) const 4544{ 4545 if ((sysTime == 0) && (inPastMs != 0)) { 4546 sysTime = systemTime(); 4547 } 4548 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 4549 if (((getStrategy((audio_stream_type_t)i) == strategy) || 4550 (NUM_STRATEGIES == strategy)) && 4551 isStreamActive((audio_stream_type_t)i, inPastMs, sysTime)) { 4552 return true; 4553 } 4554 } 4555 return false; 4556} 4557 4558bool AudioPolicyManager::AudioOutputDescriptor::isStreamActive(audio_stream_type_t stream, 4559 uint32_t inPastMs, 4560 nsecs_t sysTime) const 4561{ 4562 if (mRefCount[stream] != 0) { 4563 return true; 4564 } 4565 if (inPastMs == 0) { 4566 return false; 4567 } 4568 if (sysTime == 0) { 4569 sysTime = systemTime(); 4570 } 4571 if (ns2ms(sysTime - mStopTime[stream]) < inPastMs) { 4572 return true; 4573 } 4574 return false; 4575} 4576 4577void AudioPolicyManager::AudioOutputDescriptor::toAudioPortConfig( 4578 struct audio_port_config *dstConfig, 4579 const struct audio_port_config *srcConfig) const 4580{ 4581 dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK| 4582 AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN; 4583 if (srcConfig != NULL) { 4584 dstConfig->config_mask &= srcConfig->config_mask; 4585 } 4586 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 4587 4588 dstConfig->id = mId; 4589 dstConfig->role = AUDIO_PORT_ROLE_SOURCE; 4590 dstConfig->type = AUDIO_PORT_TYPE_MIX; 4591 dstConfig->ext.mix.hw_module = mProfile->mModule->mHandle; 4592 dstConfig->ext.mix.handle = mIoHandle; 4593 dstConfig->ext.mix.usecase.stream = AUDIO_STREAM_DEFAULT; 4594} 4595 4596void AudioPolicyManager::AudioOutputDescriptor::toAudioPort( 4597 struct audio_port *port) const 4598{ 4599 mProfile->toAudioPort(port); 4600 port->id = mId; 4601 toAudioPortConfig(&port->active_config); 4602 port->ext.mix.hw_module = mProfile->mModule->mHandle; 4603 port->ext.mix.handle = mIoHandle; 4604 port->ext.mix.latency_class = 4605 mFlags & AUDIO_OUTPUT_FLAG_FAST ? AUDIO_LATENCY_LOW : AUDIO_LATENCY_NORMAL; 4606} 4607 4608status_t AudioPolicyManager::AudioOutputDescriptor::dump(int fd) 4609{ 4610 const size_t SIZE = 256; 4611 char buffer[SIZE]; 4612 String8 result; 4613 4614 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 4615 result.append(buffer); 4616 snprintf(buffer, SIZE, " Format: %08x\n", mFormat); 4617 result.append(buffer); 4618 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 4619 result.append(buffer); 4620 snprintf(buffer, SIZE, " Latency: %d\n", mLatency); 4621 result.append(buffer); 4622 snprintf(buffer, SIZE, " Flags %08x\n", mFlags); 4623 result.append(buffer); 4624 snprintf(buffer, SIZE, " Devices %08x\n", device()); 4625 result.append(buffer); 4626 snprintf(buffer, SIZE, " Stream volume refCount muteCount\n"); 4627 result.append(buffer); 4628 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 4629 snprintf(buffer, SIZE, " %02d %.03f %02d %02d\n", 4630 i, mCurVolume[i], mRefCount[i], mMuteCount[i]); 4631 result.append(buffer); 4632 } 4633 write(fd, result.string(), result.size()); 4634 4635 return NO_ERROR; 4636} 4637 4638// --- AudioInputDescriptor class implementation 4639 4640AudioPolicyManager::AudioInputDescriptor::AudioInputDescriptor(const sp<IOProfile>& profile) 4641 : mId(0), mIoHandle(0), 4642 mDevice(AUDIO_DEVICE_NONE), mPatchHandle(0), mRefCount(0), 4643 mInputSource(AUDIO_SOURCE_DEFAULT), mProfile(profile) 4644{ 4645 if (profile != NULL) { 4646 mAudioPort = profile; 4647 mSamplingRate = profile->mSamplingRates[0]; 4648 mFormat = profile->mFormats[0]; 4649 mChannelMask = profile->mChannelMasks[0]; 4650 if (profile->mGains.size() > 0) { 4651 profile->mGains[0]->getDefaultConfig(&mGain); 4652 } 4653 } else { 4654 mSamplingRate = 0; 4655 mFormat = AUDIO_FORMAT_DEFAULT; 4656 mChannelMask = 0; 4657 } 4658} 4659 4660void AudioPolicyManager::AudioInputDescriptor::toAudioPortConfig( 4661 struct audio_port_config *dstConfig, 4662 const struct audio_port_config *srcConfig) const 4663{ 4664 dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK| 4665 AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN; 4666 if (srcConfig != NULL) { 4667 dstConfig->config_mask &= srcConfig->config_mask; 4668 } 4669 4670 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 4671 4672 dstConfig->id = mId; 4673 dstConfig->role = AUDIO_PORT_ROLE_SINK; 4674 dstConfig->type = AUDIO_PORT_TYPE_MIX; 4675 dstConfig->ext.mix.hw_module = mProfile->mModule->mHandle; 4676 dstConfig->ext.mix.handle = mIoHandle; 4677 dstConfig->ext.mix.usecase.source = mInputSource; 4678} 4679 4680void AudioPolicyManager::AudioInputDescriptor::toAudioPort( 4681 struct audio_port *port) const 4682{ 4683 mProfile->toAudioPort(port); 4684 port->id = mId; 4685 toAudioPortConfig(&port->active_config); 4686 port->ext.mix.hw_module = mProfile->mModule->mHandle; 4687 port->ext.mix.handle = mIoHandle; 4688 port->ext.mix.latency_class = AUDIO_LATENCY_NORMAL; 4689} 4690 4691status_t AudioPolicyManager::AudioInputDescriptor::dump(int fd) 4692{ 4693 const size_t SIZE = 256; 4694 char buffer[SIZE]; 4695 String8 result; 4696 4697 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 4698 result.append(buffer); 4699 snprintf(buffer, SIZE, " Format: %d\n", mFormat); 4700 result.append(buffer); 4701 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 4702 result.append(buffer); 4703 snprintf(buffer, SIZE, " Devices %08x\n", mDevice); 4704 result.append(buffer); 4705 snprintf(buffer, SIZE, " Ref Count %d\n", mRefCount); 4706 result.append(buffer); 4707 write(fd, result.string(), result.size()); 4708 4709 return NO_ERROR; 4710} 4711 4712// --- StreamDescriptor class implementation 4713 4714AudioPolicyManager::StreamDescriptor::StreamDescriptor() 4715 : mIndexMin(0), mIndexMax(1), mCanBeMuted(true) 4716{ 4717 mIndexCur.add(AUDIO_DEVICE_OUT_DEFAULT, 0); 4718} 4719 4720int AudioPolicyManager::StreamDescriptor::getVolumeIndex(audio_devices_t device) 4721{ 4722 device = AudioPolicyManager::getDeviceForVolume(device); 4723 // there is always a valid entry for AUDIO_DEVICE_OUT_DEFAULT 4724 if (mIndexCur.indexOfKey(device) < 0) { 4725 device = AUDIO_DEVICE_OUT_DEFAULT; 4726 } 4727 return mIndexCur.valueFor(device); 4728} 4729 4730void AudioPolicyManager::StreamDescriptor::dump(int fd) 4731{ 4732 const size_t SIZE = 256; 4733 char buffer[SIZE]; 4734 String8 result; 4735 4736 snprintf(buffer, SIZE, "%s %02d %02d ", 4737 mCanBeMuted ? "true " : "false", mIndexMin, mIndexMax); 4738 result.append(buffer); 4739 for (size_t i = 0; i < mIndexCur.size(); i++) { 4740 snprintf(buffer, SIZE, "%04x : %02d, ", 4741 mIndexCur.keyAt(i), 4742 mIndexCur.valueAt(i)); 4743 result.append(buffer); 4744 } 4745 result.append("\n"); 4746 4747 write(fd, result.string(), result.size()); 4748} 4749 4750// --- EffectDescriptor class implementation 4751 4752status_t AudioPolicyManager::EffectDescriptor::dump(int fd) 4753{ 4754 const size_t SIZE = 256; 4755 char buffer[SIZE]; 4756 String8 result; 4757 4758 snprintf(buffer, SIZE, " I/O: %d\n", mIo); 4759 result.append(buffer); 4760 snprintf(buffer, SIZE, " Strategy: %d\n", mStrategy); 4761 result.append(buffer); 4762 snprintf(buffer, SIZE, " Session: %d\n", mSession); 4763 result.append(buffer); 4764 snprintf(buffer, SIZE, " Name: %s\n", mDesc.name); 4765 result.append(buffer); 4766 snprintf(buffer, SIZE, " %s\n", mEnabled ? "Enabled" : "Disabled"); 4767 result.append(buffer); 4768 write(fd, result.string(), result.size()); 4769 4770 return NO_ERROR; 4771} 4772 4773// --- HwModule class implementation 4774 4775AudioPolicyManager::HwModule::HwModule(const char *name) 4776 : mName(strndup(name, AUDIO_HARDWARE_MODULE_ID_MAX_LEN)), 4777 mHalVersion(AUDIO_DEVICE_API_VERSION_MIN), mHandle(0) 4778{ 4779} 4780 4781AudioPolicyManager::HwModule::~HwModule() 4782{ 4783 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 4784 mOutputProfiles[i]->mSupportedDevices.clear(); 4785 } 4786 for (size_t i = 0; i < mInputProfiles.size(); i++) { 4787 mInputProfiles[i]->mSupportedDevices.clear(); 4788 } 4789 free((void *)mName); 4790} 4791 4792status_t AudioPolicyManager::HwModule::loadInput(cnode *root) 4793{ 4794 cnode *node = root->first_child; 4795 4796 sp<IOProfile> profile = new IOProfile(String8(root->name), AUDIO_PORT_ROLE_SINK, this); 4797 4798 while (node) { 4799 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) { 4800 profile->loadSamplingRates((char *)node->value); 4801 } else if (strcmp(node->name, FORMATS_TAG) == 0) { 4802 profile->loadFormats((char *)node->value); 4803 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 4804 profile->loadInChannels((char *)node->value); 4805 } else if (strcmp(node->name, DEVICES_TAG) == 0) { 4806 profile->mSupportedDevices.loadDevicesFromName((char *)node->value, 4807 mDeclaredDevices); 4808 } else if (strcmp(node->name, GAINS_TAG) == 0) { 4809 profile->loadGains(node); 4810 } 4811 node = node->next; 4812 } 4813 ALOGW_IF(profile->mSupportedDevices.isEmpty(), 4814 "loadInput() invalid supported devices"); 4815 ALOGW_IF(profile->mChannelMasks.size() == 0, 4816 "loadInput() invalid supported channel masks"); 4817 ALOGW_IF(profile->mSamplingRates.size() == 0, 4818 "loadInput() invalid supported sampling rates"); 4819 ALOGW_IF(profile->mFormats.size() == 0, 4820 "loadInput() invalid supported formats"); 4821 if (!profile->mSupportedDevices.isEmpty() && 4822 (profile->mChannelMasks.size() != 0) && 4823 (profile->mSamplingRates.size() != 0) && 4824 (profile->mFormats.size() != 0)) { 4825 4826 ALOGV("loadInput() adding input Supported Devices %04x", 4827 profile->mSupportedDevices.types()); 4828 4829 mInputProfiles.add(profile); 4830 return NO_ERROR; 4831 } else { 4832 return BAD_VALUE; 4833 } 4834} 4835 4836status_t AudioPolicyManager::HwModule::loadOutput(cnode *root) 4837{ 4838 cnode *node = root->first_child; 4839 4840 sp<IOProfile> profile = new IOProfile(String8(root->name), AUDIO_PORT_ROLE_SOURCE, this); 4841 4842 while (node) { 4843 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) { 4844 profile->loadSamplingRates((char *)node->value); 4845 } else if (strcmp(node->name, FORMATS_TAG) == 0) { 4846 profile->loadFormats((char *)node->value); 4847 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 4848 profile->loadOutChannels((char *)node->value); 4849 } else if (strcmp(node->name, DEVICES_TAG) == 0) { 4850 profile->mSupportedDevices.loadDevicesFromName((char *)node->value, 4851 mDeclaredDevices); 4852 } else if (strcmp(node->name, FLAGS_TAG) == 0) { 4853 profile->mFlags = parseFlagNames((char *)node->value); 4854 } else if (strcmp(node->name, GAINS_TAG) == 0) { 4855 profile->loadGains(node); 4856 } 4857 node = node->next; 4858 } 4859 ALOGW_IF(profile->mSupportedDevices.isEmpty(), 4860 "loadOutput() invalid supported devices"); 4861 ALOGW_IF(profile->mChannelMasks.size() == 0, 4862 "loadOutput() invalid supported channel masks"); 4863 ALOGW_IF(profile->mSamplingRates.size() == 0, 4864 "loadOutput() invalid supported sampling rates"); 4865 ALOGW_IF(profile->mFormats.size() == 0, 4866 "loadOutput() invalid supported formats"); 4867 if (!profile->mSupportedDevices.isEmpty() && 4868 (profile->mChannelMasks.size() != 0) && 4869 (profile->mSamplingRates.size() != 0) && 4870 (profile->mFormats.size() != 0)) { 4871 4872 ALOGV("loadOutput() adding output Supported Devices %04x, mFlags %04x", 4873 profile->mSupportedDevices.types(), profile->mFlags); 4874 4875 mOutputProfiles.add(profile); 4876 return NO_ERROR; 4877 } else { 4878 return BAD_VALUE; 4879 } 4880} 4881 4882status_t AudioPolicyManager::HwModule::loadDevice(cnode *root) 4883{ 4884 cnode *node = root->first_child; 4885 4886 audio_devices_t type = AUDIO_DEVICE_NONE; 4887 while (node) { 4888 if (strcmp(node->name, DEVICE_TYPE) == 0) { 4889 type = parseDeviceNames((char *)node->value); 4890 break; 4891 } 4892 node = node->next; 4893 } 4894 if (type == AUDIO_DEVICE_NONE || 4895 (!audio_is_input_device(type) && !audio_is_output_device(type))) { 4896 ALOGW("loadDevice() bad type %08x", type); 4897 return BAD_VALUE; 4898 } 4899 sp<DeviceDescriptor> deviceDesc = new DeviceDescriptor(String8(root->name), type); 4900 deviceDesc->mModule = this; 4901 4902 node = root->first_child; 4903 while (node) { 4904 if (strcmp(node->name, DEVICE_ADDRESS) == 0) { 4905 deviceDesc->mAddress = String8((char *)node->value); 4906 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 4907 if (audio_is_input_device(type)) { 4908 deviceDesc->loadInChannels((char *)node->value); 4909 } else { 4910 deviceDesc->loadOutChannels((char *)node->value); 4911 } 4912 } else if (strcmp(node->name, GAINS_TAG) == 0) { 4913 deviceDesc->loadGains(node); 4914 } 4915 node = node->next; 4916 } 4917 4918 ALOGV("loadDevice() adding device name %s type %08x address %s", 4919 deviceDesc->mName.string(), type, deviceDesc->mAddress.string()); 4920 4921 mDeclaredDevices.add(deviceDesc); 4922 4923 return NO_ERROR; 4924} 4925 4926void AudioPolicyManager::HwModule::dump(int fd) 4927{ 4928 const size_t SIZE = 256; 4929 char buffer[SIZE]; 4930 String8 result; 4931 4932 snprintf(buffer, SIZE, " - name: %s\n", mName); 4933 result.append(buffer); 4934 snprintf(buffer, SIZE, " - handle: %d\n", mHandle); 4935 result.append(buffer); 4936 snprintf(buffer, SIZE, " - version: %u.%u\n", mHalVersion >> 8, mHalVersion & 0xFF); 4937 result.append(buffer); 4938 write(fd, result.string(), result.size()); 4939 if (mOutputProfiles.size()) { 4940 write(fd, " - outputs:\n", strlen(" - outputs:\n")); 4941 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 4942 snprintf(buffer, SIZE, " output %zu:\n", i); 4943 write(fd, buffer, strlen(buffer)); 4944 mOutputProfiles[i]->dump(fd); 4945 } 4946 } 4947 if (mInputProfiles.size()) { 4948 write(fd, " - inputs:\n", strlen(" - inputs:\n")); 4949 for (size_t i = 0; i < mInputProfiles.size(); i++) { 4950 snprintf(buffer, SIZE, " input %zu:\n", i); 4951 write(fd, buffer, strlen(buffer)); 4952 mInputProfiles[i]->dump(fd); 4953 } 4954 } 4955 if (mDeclaredDevices.size()) { 4956 write(fd, " - devices:\n", strlen(" - devices:\n")); 4957 for (size_t i = 0; i < mDeclaredDevices.size(); i++) { 4958 mDeclaredDevices[i]->dump(fd, 4, i); 4959 } 4960 } 4961} 4962 4963// --- AudioPort class implementation 4964 4965 4966AudioPolicyManager::AudioPort::AudioPort(const String8& name, audio_port_type_t type, 4967 audio_port_role_t role, const sp<HwModule>& module) : 4968 mName(name), mType(type), mRole(role), mModule(module) 4969{ 4970 mUseInChannelMask = ((type == AUDIO_PORT_TYPE_DEVICE) && (role == AUDIO_PORT_ROLE_SOURCE)) || 4971 ((type == AUDIO_PORT_TYPE_MIX) && (role == AUDIO_PORT_ROLE_SINK)); 4972} 4973 4974void AudioPolicyManager::AudioPort::toAudioPort(struct audio_port *port) const 4975{ 4976 port->role = mRole; 4977 port->type = mType; 4978 unsigned int i; 4979 for (i = 0; i < mSamplingRates.size() && i < AUDIO_PORT_MAX_SAMPLING_RATES; i++) { 4980 port->sample_rates[i] = mSamplingRates[i]; 4981 } 4982 port->num_sample_rates = i; 4983 for (i = 0; i < mChannelMasks.size() && i < AUDIO_PORT_MAX_CHANNEL_MASKS; i++) { 4984 port->channel_masks[i] = mChannelMasks[i]; 4985 } 4986 port->num_channel_masks = i; 4987 for (i = 0; i < mFormats.size() && i < AUDIO_PORT_MAX_FORMATS; i++) { 4988 port->formats[i] = mFormats[i]; 4989 } 4990 port->num_formats = i; 4991 4992 ALOGV("AudioPort::toAudioPort() num gains %d", mGains.size()); 4993 4994 for (i = 0; i < mGains.size() && i < AUDIO_PORT_MAX_GAINS; i++) { 4995 port->gains[i] = mGains[i]->mGain; 4996 } 4997 port->num_gains = i; 4998} 4999 5000 5001void AudioPolicyManager::AudioPort::loadSamplingRates(char *name) 5002{ 5003 char *str = strtok(name, "|"); 5004 5005 // by convention, "0' in the first entry in mSamplingRates indicates the supported sampling 5006 // rates should be read from the output stream after it is opened for the first time 5007 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 5008 mSamplingRates.add(0); 5009 return; 5010 } 5011 5012 while (str != NULL) { 5013 uint32_t rate = atoi(str); 5014 if (rate != 0) { 5015 ALOGV("loadSamplingRates() adding rate %d", rate); 5016 mSamplingRates.add(rate); 5017 } 5018 str = strtok(NULL, "|"); 5019 } 5020} 5021 5022void AudioPolicyManager::AudioPort::loadFormats(char *name) 5023{ 5024 char *str = strtok(name, "|"); 5025 5026 // by convention, "0' in the first entry in mFormats indicates the supported formats 5027 // should be read from the output stream after it is opened for the first time 5028 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 5029 mFormats.add(AUDIO_FORMAT_DEFAULT); 5030 return; 5031 } 5032 5033 while (str != NULL) { 5034 audio_format_t format = (audio_format_t)stringToEnum(sFormatNameToEnumTable, 5035 ARRAY_SIZE(sFormatNameToEnumTable), 5036 str); 5037 if (format != AUDIO_FORMAT_DEFAULT) { 5038 mFormats.add(format); 5039 } 5040 str = strtok(NULL, "|"); 5041 } 5042} 5043 5044void AudioPolicyManager::AudioPort::loadInChannels(char *name) 5045{ 5046 const char *str = strtok(name, "|"); 5047 5048 ALOGV("loadInChannels() %s", name); 5049 5050 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 5051 mChannelMasks.add(0); 5052 return; 5053 } 5054 5055 while (str != NULL) { 5056 audio_channel_mask_t channelMask = 5057 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable, 5058 ARRAY_SIZE(sInChannelsNameToEnumTable), 5059 str); 5060 if (channelMask != 0) { 5061 ALOGV("loadInChannels() adding channelMask %04x", channelMask); 5062 mChannelMasks.add(channelMask); 5063 } 5064 str = strtok(NULL, "|"); 5065 } 5066} 5067 5068void AudioPolicyManager::AudioPort::loadOutChannels(char *name) 5069{ 5070 const char *str = strtok(name, "|"); 5071 5072 ALOGV("loadOutChannels() %s", name); 5073 5074 // by convention, "0' in the first entry in mChannelMasks indicates the supported channel 5075 // masks should be read from the output stream after it is opened for the first time 5076 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 5077 mChannelMasks.add(0); 5078 return; 5079 } 5080 5081 while (str != NULL) { 5082 audio_channel_mask_t channelMask = 5083 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable, 5084 ARRAY_SIZE(sOutChannelsNameToEnumTable), 5085 str); 5086 if (channelMask != 0) { 5087 mChannelMasks.add(channelMask); 5088 } 5089 str = strtok(NULL, "|"); 5090 } 5091 return; 5092} 5093 5094audio_gain_mode_t AudioPolicyManager::AudioPort::loadGainMode(char *name) 5095{ 5096 const char *str = strtok(name, "|"); 5097 5098 ALOGV("loadGainMode() %s", name); 5099 audio_gain_mode_t mode = 0; 5100 while (str != NULL) { 5101 mode |= (audio_gain_mode_t)stringToEnum(sGainModeNameToEnumTable, 5102 ARRAY_SIZE(sGainModeNameToEnumTable), 5103 str); 5104 str = strtok(NULL, "|"); 5105 } 5106 return mode; 5107} 5108 5109void AudioPolicyManager::AudioPort::loadGain(cnode *root, int index) 5110{ 5111 cnode *node = root->first_child; 5112 5113 sp<AudioGain> gain = new AudioGain(index, mUseInChannelMask); 5114 5115 while (node) { 5116 if (strcmp(node->name, GAIN_MODE) == 0) { 5117 gain->mGain.mode = loadGainMode((char *)node->value); 5118 } else if (strcmp(node->name, GAIN_CHANNELS) == 0) { 5119 if (mUseInChannelMask) { 5120 gain->mGain.channel_mask = 5121 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable, 5122 ARRAY_SIZE(sInChannelsNameToEnumTable), 5123 (char *)node->value); 5124 } else { 5125 gain->mGain.channel_mask = 5126 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable, 5127 ARRAY_SIZE(sOutChannelsNameToEnumTable), 5128 (char *)node->value); 5129 } 5130 } else if (strcmp(node->name, GAIN_MIN_VALUE) == 0) { 5131 gain->mGain.min_value = atoi((char *)node->value); 5132 } else if (strcmp(node->name, GAIN_MAX_VALUE) == 0) { 5133 gain->mGain.max_value = atoi((char *)node->value); 5134 } else if (strcmp(node->name, GAIN_DEFAULT_VALUE) == 0) { 5135 gain->mGain.default_value = atoi((char *)node->value); 5136 } else if (strcmp(node->name, GAIN_STEP_VALUE) == 0) { 5137 gain->mGain.step_value = atoi((char *)node->value); 5138 } else if (strcmp(node->name, GAIN_MIN_RAMP_MS) == 0) { 5139 gain->mGain.min_ramp_ms = atoi((char *)node->value); 5140 } else if (strcmp(node->name, GAIN_MAX_RAMP_MS) == 0) { 5141 gain->mGain.max_ramp_ms = atoi((char *)node->value); 5142 } 5143 node = node->next; 5144 } 5145 5146 ALOGV("loadGain() adding new gain mode %08x channel mask %08x min mB %d max mB %d", 5147 gain->mGain.mode, gain->mGain.channel_mask, gain->mGain.min_value, gain->mGain.max_value); 5148 5149 if (gain->mGain.mode == 0) { 5150 return; 5151 } 5152 mGains.add(gain); 5153} 5154 5155void AudioPolicyManager::AudioPort::loadGains(cnode *root) 5156{ 5157 cnode *node = root->first_child; 5158 int index = 0; 5159 while (node) { 5160 ALOGV("loadGains() loading gain %s", node->name); 5161 loadGain(node, index++); 5162 node = node->next; 5163 } 5164} 5165 5166status_t AudioPolicyManager::AudioPort::checkSamplingRate(uint32_t samplingRate) const 5167{ 5168 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 5169 if (mSamplingRates[i] == samplingRate) { 5170 return NO_ERROR; 5171 } 5172 } 5173 return BAD_VALUE; 5174} 5175 5176status_t AudioPolicyManager::AudioPort::checkChannelMask(audio_channel_mask_t channelMask) const 5177{ 5178 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 5179 if (mChannelMasks[i] == channelMask) { 5180 return NO_ERROR; 5181 } 5182 } 5183 return BAD_VALUE; 5184} 5185 5186status_t AudioPolicyManager::AudioPort::checkFormat(audio_format_t format) const 5187{ 5188 for (size_t i = 0; i < mFormats.size(); i ++) { 5189 if (mFormats[i] == format) { 5190 return NO_ERROR; 5191 } 5192 } 5193 return BAD_VALUE; 5194} 5195 5196status_t AudioPolicyManager::AudioPort::checkGain(const struct audio_gain_config *gainConfig, 5197 int index) const 5198{ 5199 if (index < 0 || (size_t)index >= mGains.size()) { 5200 return BAD_VALUE; 5201 } 5202 return mGains[index]->checkConfig(gainConfig); 5203} 5204 5205void AudioPolicyManager::AudioPort::dump(int fd, int spaces) const 5206{ 5207 const size_t SIZE = 256; 5208 char buffer[SIZE]; 5209 String8 result; 5210 5211 if (mName.size() != 0) { 5212 snprintf(buffer, SIZE, "%*s- name: %s\n", spaces, "", mName.string()); 5213 result.append(buffer); 5214 } 5215 5216 if (mSamplingRates.size() != 0) { 5217 snprintf(buffer, SIZE, "%*s- sampling rates: ", spaces, ""); 5218 result.append(buffer); 5219 for (size_t i = 0; i < mSamplingRates.size(); i++) { 5220 snprintf(buffer, SIZE, "%d", mSamplingRates[i]); 5221 result.append(buffer); 5222 result.append(i == (mSamplingRates.size() - 1) ? "" : ", "); 5223 } 5224 result.append("\n"); 5225 } 5226 5227 if (mChannelMasks.size() != 0) { 5228 snprintf(buffer, SIZE, "%*s- channel masks: ", spaces, ""); 5229 result.append(buffer); 5230 for (size_t i = 0; i < mChannelMasks.size(); i++) { 5231 snprintf(buffer, SIZE, "0x%04x", mChannelMasks[i]); 5232 result.append(buffer); 5233 result.append(i == (mChannelMasks.size() - 1) ? "" : ", "); 5234 } 5235 result.append("\n"); 5236 } 5237 5238 if (mFormats.size() != 0) { 5239 snprintf(buffer, SIZE, "%*s- formats: ", spaces, ""); 5240 result.append(buffer); 5241 for (size_t i = 0; i < mFormats.size(); i++) { 5242 snprintf(buffer, SIZE, "%-48s", enumToString(sFormatNameToEnumTable, 5243 ARRAY_SIZE(sFormatNameToEnumTable), 5244 mFormats[i])); 5245 result.append(buffer); 5246 result.append(i == (mFormats.size() - 1) ? "" : ", "); 5247 } 5248 result.append("\n"); 5249 } 5250 write(fd, result.string(), result.size()); 5251 if (mGains.size() != 0) { 5252 snprintf(buffer, SIZE, "%*s- gains:\n", spaces, ""); 5253 write(fd, buffer, strlen(buffer) + 1); 5254 result.append(buffer); 5255 for (size_t i = 0; i < mGains.size(); i++) { 5256 mGains[i]->dump(fd, spaces + 2, i); 5257 } 5258 } 5259} 5260 5261// --- AudioGain class implementation 5262 5263AudioPolicyManager::AudioGain::AudioGain(int index, bool useInChannelMask) 5264{ 5265 mIndex = index; 5266 mUseInChannelMask = useInChannelMask; 5267 memset(&mGain, 0, sizeof(struct audio_gain)); 5268} 5269 5270void AudioPolicyManager::AudioGain::getDefaultConfig(struct audio_gain_config *config) 5271{ 5272 config->index = mIndex; 5273 config->mode = mGain.mode; 5274 config->channel_mask = mGain.channel_mask; 5275 if ((mGain.mode & AUDIO_GAIN_MODE_JOINT) == AUDIO_GAIN_MODE_JOINT) { 5276 config->values[0] = mGain.default_value; 5277 } else { 5278 uint32_t numValues; 5279 if (mUseInChannelMask) { 5280 numValues = audio_channel_count_from_in_mask(mGain.channel_mask); 5281 } else { 5282 numValues = audio_channel_count_from_out_mask(mGain.channel_mask); 5283 } 5284 for (size_t i = 0; i < numValues; i++) { 5285 config->values[i] = mGain.default_value; 5286 } 5287 } 5288 if ((mGain.mode & AUDIO_GAIN_MODE_RAMP) == AUDIO_GAIN_MODE_RAMP) { 5289 config->ramp_duration_ms = mGain.min_ramp_ms; 5290 } 5291} 5292 5293status_t AudioPolicyManager::AudioGain::checkConfig(const struct audio_gain_config *config) 5294{ 5295 if ((config->mode & ~mGain.mode) != 0) { 5296 return BAD_VALUE; 5297 } 5298 if ((config->mode & AUDIO_GAIN_MODE_JOINT) == AUDIO_GAIN_MODE_JOINT) { 5299 if ((config->values[0] < mGain.min_value) || 5300 (config->values[0] > mGain.max_value)) { 5301 return BAD_VALUE; 5302 } 5303 } else { 5304 if ((config->channel_mask & ~mGain.channel_mask) != 0) { 5305 return BAD_VALUE; 5306 } 5307 uint32_t numValues; 5308 if (mUseInChannelMask) { 5309 numValues = audio_channel_count_from_in_mask(config->channel_mask); 5310 } else { 5311 numValues = audio_channel_count_from_out_mask(config->channel_mask); 5312 } 5313 for (size_t i = 0; i < numValues; i++) { 5314 if ((config->values[i] < mGain.min_value) || 5315 (config->values[i] > mGain.max_value)) { 5316 return BAD_VALUE; 5317 } 5318 } 5319 } 5320 if ((config->mode & AUDIO_GAIN_MODE_RAMP) == AUDIO_GAIN_MODE_RAMP) { 5321 if ((config->ramp_duration_ms < mGain.min_ramp_ms) || 5322 (config->ramp_duration_ms > mGain.max_ramp_ms)) { 5323 return BAD_VALUE; 5324 } 5325 } 5326 return NO_ERROR; 5327} 5328 5329void AudioPolicyManager::AudioGain::dump(int fd, int spaces, int index) const 5330{ 5331 const size_t SIZE = 256; 5332 char buffer[SIZE]; 5333 String8 result; 5334 5335 snprintf(buffer, SIZE, "%*sGain %d:\n", spaces, "", index+1); 5336 result.append(buffer); 5337 snprintf(buffer, SIZE, "%*s- mode: %08x\n", spaces, "", mGain.mode); 5338 result.append(buffer); 5339 snprintf(buffer, SIZE, "%*s- channel_mask: %08x\n", spaces, "", mGain.channel_mask); 5340 result.append(buffer); 5341 snprintf(buffer, SIZE, "%*s- min_value: %d mB\n", spaces, "", mGain.min_value); 5342 result.append(buffer); 5343 snprintf(buffer, SIZE, "%*s- max_value: %d mB\n", spaces, "", mGain.max_value); 5344 result.append(buffer); 5345 snprintf(buffer, SIZE, "%*s- default_value: %d mB\n", spaces, "", mGain.default_value); 5346 result.append(buffer); 5347 snprintf(buffer, SIZE, "%*s- step_value: %d mB\n", spaces, "", mGain.step_value); 5348 result.append(buffer); 5349 snprintf(buffer, SIZE, "%*s- min_ramp_ms: %d ms\n", spaces, "", mGain.min_ramp_ms); 5350 result.append(buffer); 5351 snprintf(buffer, SIZE, "%*s- max_ramp_ms: %d ms\n", spaces, "", mGain.max_ramp_ms); 5352 result.append(buffer); 5353 5354 write(fd, result.string(), result.size()); 5355} 5356 5357// --- AudioPortConfig class implementation 5358 5359AudioPolicyManager::AudioPortConfig::AudioPortConfig() 5360{ 5361 mSamplingRate = 0; 5362 mChannelMask = AUDIO_CHANNEL_NONE; 5363 mFormat = AUDIO_FORMAT_INVALID; 5364 mGain.index = -1; 5365} 5366 5367status_t AudioPolicyManager::AudioPortConfig::applyAudioPortConfig( 5368 const struct audio_port_config *config, 5369 struct audio_port_config *backupConfig) 5370{ 5371 struct audio_port_config localBackupConfig; 5372 status_t status = NO_ERROR; 5373 5374 localBackupConfig.config_mask = config->config_mask; 5375 toAudioPortConfig(&localBackupConfig); 5376 5377 if (mAudioPort == 0) { 5378 status = NO_INIT; 5379 goto exit; 5380 } 5381 if (config->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { 5382 status = mAudioPort->checkSamplingRate(config->sample_rate); 5383 if (status != NO_ERROR) { 5384 goto exit; 5385 } 5386 mSamplingRate = config->sample_rate; 5387 } 5388 if (config->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { 5389 status = mAudioPort->checkChannelMask(config->channel_mask); 5390 if (status != NO_ERROR) { 5391 goto exit; 5392 } 5393 mChannelMask = config->channel_mask; 5394 } 5395 if (config->config_mask & AUDIO_PORT_CONFIG_FORMAT) { 5396 status = mAudioPort->checkFormat(config->format); 5397 if (status != NO_ERROR) { 5398 goto exit; 5399 } 5400 mFormat = config->format; 5401 } 5402 if (config->config_mask & AUDIO_PORT_CONFIG_GAIN) { 5403 status = mAudioPort->checkGain(&config->gain, config->gain.index); 5404 if (status != NO_ERROR) { 5405 goto exit; 5406 } 5407 mGain = config->gain; 5408 } 5409 5410exit: 5411 if (status != NO_ERROR) { 5412 applyAudioPortConfig(&localBackupConfig); 5413 } 5414 if (backupConfig != NULL) { 5415 *backupConfig = localBackupConfig; 5416 } 5417 return status; 5418} 5419 5420void AudioPolicyManager::AudioPortConfig::toAudioPortConfig( 5421 struct audio_port_config *dstConfig, 5422 const struct audio_port_config *srcConfig) const 5423{ 5424 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { 5425 dstConfig->sample_rate = mSamplingRate; 5426 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE)) { 5427 dstConfig->sample_rate = srcConfig->sample_rate; 5428 } 5429 } else { 5430 dstConfig->sample_rate = 0; 5431 } 5432 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { 5433 dstConfig->channel_mask = mChannelMask; 5434 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK)) { 5435 dstConfig->channel_mask = srcConfig->channel_mask; 5436 } 5437 } else { 5438 dstConfig->channel_mask = AUDIO_CHANNEL_NONE; 5439 } 5440 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_FORMAT) { 5441 dstConfig->format = mFormat; 5442 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_FORMAT)) { 5443 dstConfig->format = srcConfig->format; 5444 } 5445 } else { 5446 dstConfig->format = AUDIO_FORMAT_INVALID; 5447 } 5448 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_GAIN) { 5449 dstConfig->gain = mGain; 5450 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_GAIN)) { 5451 dstConfig->gain = srcConfig->gain; 5452 } 5453 } else { 5454 dstConfig->gain.index = -1; 5455 } 5456 if (dstConfig->gain.index != -1) { 5457 dstConfig->config_mask |= AUDIO_PORT_CONFIG_GAIN; 5458 } else { 5459 dstConfig->config_mask &= ~AUDIO_PORT_CONFIG_GAIN; 5460 } 5461} 5462 5463// --- IOProfile class implementation 5464 5465AudioPolicyManager::IOProfile::IOProfile(const String8& name, audio_port_role_t role, 5466 const sp<HwModule>& module) 5467 : AudioPort(name, AUDIO_PORT_TYPE_MIX, role, module), mFlags((audio_output_flags_t)0) 5468{ 5469} 5470 5471AudioPolicyManager::IOProfile::~IOProfile() 5472{ 5473} 5474 5475// checks if the IO profile is compatible with specified parameters. 5476// Sampling rate, format and channel mask must be specified in order to 5477// get a valid a match 5478bool AudioPolicyManager::IOProfile::isCompatibleProfile(audio_devices_t device, 5479 uint32_t samplingRate, 5480 audio_format_t format, 5481 audio_channel_mask_t channelMask, 5482 audio_output_flags_t flags) const 5483{ 5484 if (samplingRate == 0 || !audio_is_valid_format(format) || channelMask == 0) { 5485 return false; 5486 } 5487 5488 if ((mSupportedDevices.types() & device) != device) { 5489 return false; 5490 } 5491 if ((mFlags & flags) != flags) { 5492 return false; 5493 } 5494 if (checkSamplingRate(samplingRate) != NO_ERROR) { 5495 return false; 5496 } 5497 if (checkChannelMask(channelMask) != NO_ERROR) { 5498 return false; 5499 } 5500 if (checkFormat(format) != NO_ERROR) { 5501 return false; 5502 } 5503 return true; 5504} 5505 5506void AudioPolicyManager::IOProfile::dump(int fd) 5507{ 5508 const size_t SIZE = 256; 5509 char buffer[SIZE]; 5510 String8 result; 5511 5512 AudioPort::dump(fd, 4); 5513 5514 snprintf(buffer, SIZE, " - flags: 0x%04x\n", mFlags); 5515 result.append(buffer); 5516 snprintf(buffer, SIZE, " - devices:\n"); 5517 result.append(buffer); 5518 write(fd, result.string(), result.size()); 5519 for (size_t i = 0; i < mSupportedDevices.size(); i++) { 5520 mSupportedDevices[i]->dump(fd, 6, i); 5521 } 5522} 5523 5524void AudioPolicyManager::IOProfile::log() 5525{ 5526 const size_t SIZE = 256; 5527 char buffer[SIZE]; 5528 String8 result; 5529 5530 ALOGV(" - sampling rates: "); 5531 for (size_t i = 0; i < mSamplingRates.size(); i++) { 5532 ALOGV(" %d", mSamplingRates[i]); 5533 } 5534 5535 ALOGV(" - channel masks: "); 5536 for (size_t i = 0; i < mChannelMasks.size(); i++) { 5537 ALOGV(" 0x%04x", mChannelMasks[i]); 5538 } 5539 5540 ALOGV(" - formats: "); 5541 for (size_t i = 0; i < mFormats.size(); i++) { 5542 ALOGV(" 0x%08x", mFormats[i]); 5543 } 5544 5545 ALOGV(" - devices: 0x%04x\n", mSupportedDevices.types()); 5546 ALOGV(" - flags: 0x%04x\n", mFlags); 5547} 5548 5549 5550// --- DeviceDescriptor implementation 5551 5552 5553AudioPolicyManager::DeviceDescriptor::DeviceDescriptor(const String8& name, audio_devices_t type) : 5554 AudioPort(name, AUDIO_PORT_TYPE_DEVICE, 5555 audio_is_output_device(type) ? AUDIO_PORT_ROLE_SINK : 5556 AUDIO_PORT_ROLE_SOURCE, 5557 NULL), 5558 mDeviceType(type), mAddress(""), 5559 mChannelMask(AUDIO_CHANNEL_NONE), mId(0) 5560{ 5561 mAudioPort = this; 5562 if (mGains.size() > 0) { 5563 mGains[0]->getDefaultConfig(&mGain); 5564 } 5565} 5566 5567bool AudioPolicyManager::DeviceDescriptor::equals(const sp<DeviceDescriptor>& other) const 5568{ 5569 // Devices are considered equal if they: 5570 // - are of the same type (a device type cannot be AUDIO_DEVICE_NONE) 5571 // - have the same address or one device does not specify the address 5572 // - have the same channel mask or one device does not specify the channel mask 5573 return (mDeviceType == other->mDeviceType) && 5574 (mAddress == "" || other->mAddress == "" || mAddress == other->mAddress) && 5575 (mChannelMask == 0 || other->mChannelMask == 0 || 5576 mChannelMask == other->mChannelMask); 5577} 5578 5579void AudioPolicyManager::DeviceVector::refreshTypes() 5580{ 5581 mDeviceTypes = AUDIO_DEVICE_NONE; 5582 for(size_t i = 0; i < size(); i++) { 5583 mDeviceTypes |= itemAt(i)->mDeviceType; 5584 } 5585 ALOGV("DeviceVector::refreshTypes() mDeviceTypes %08x", mDeviceTypes); 5586} 5587 5588ssize_t AudioPolicyManager::DeviceVector::indexOf(const sp<DeviceDescriptor>& item) const 5589{ 5590 for(size_t i = 0; i < size(); i++) { 5591 if (item->equals(itemAt(i))) { 5592 return i; 5593 } 5594 } 5595 return -1; 5596} 5597 5598ssize_t AudioPolicyManager::DeviceVector::add(const sp<DeviceDescriptor>& item) 5599{ 5600 ssize_t ret = indexOf(item); 5601 5602 if (ret < 0) { 5603 ret = SortedVector::add(item); 5604 if (ret >= 0) { 5605 refreshTypes(); 5606 } 5607 } else { 5608 ALOGW("DeviceVector::add device %08x already in", item->mDeviceType); 5609 ret = -1; 5610 } 5611 return ret; 5612} 5613 5614ssize_t AudioPolicyManager::DeviceVector::remove(const sp<DeviceDescriptor>& item) 5615{ 5616 size_t i; 5617 ssize_t ret = indexOf(item); 5618 5619 if (ret < 0) { 5620 ALOGW("DeviceVector::remove device %08x not in", item->mDeviceType); 5621 } else { 5622 ret = SortedVector::removeAt(ret); 5623 if (ret >= 0) { 5624 refreshTypes(); 5625 } 5626 } 5627 return ret; 5628} 5629 5630void AudioPolicyManager::DeviceVector::loadDevicesFromType(audio_devices_t types) 5631{ 5632 DeviceVector deviceList; 5633 5634 uint32_t role_bit = AUDIO_DEVICE_BIT_IN & types; 5635 types &= ~role_bit; 5636 5637 while (types) { 5638 uint32_t i = 31 - __builtin_clz(types); 5639 uint32_t type = 1 << i; 5640 types &= ~type; 5641 add(new DeviceDescriptor(String8(""), type | role_bit)); 5642 } 5643} 5644 5645void AudioPolicyManager::DeviceVector::loadDevicesFromName(char *name, 5646 const DeviceVector& declaredDevices) 5647{ 5648 char *devName = strtok(name, "|"); 5649 while (devName != NULL) { 5650 if (strlen(devName) != 0) { 5651 audio_devices_t type = stringToEnum(sDeviceNameToEnumTable, 5652 ARRAY_SIZE(sDeviceNameToEnumTable), 5653 devName); 5654 if (type != AUDIO_DEVICE_NONE) { 5655 add(new DeviceDescriptor(String8(""), type)); 5656 } else { 5657 sp<DeviceDescriptor> deviceDesc = 5658 declaredDevices.getDeviceFromName(String8(devName)); 5659 if (deviceDesc != 0) { 5660 add(deviceDesc); 5661 } 5662 } 5663 } 5664 devName = strtok(NULL, "|"); 5665 } 5666} 5667 5668sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDevice( 5669 audio_devices_t type, String8 address) const 5670{ 5671 sp<DeviceDescriptor> device; 5672 for (size_t i = 0; i < size(); i++) { 5673 if (itemAt(i)->mDeviceType == type) { 5674 device = itemAt(i); 5675 if (itemAt(i)->mAddress = address) { 5676 break; 5677 } 5678 } 5679 } 5680 ALOGV("DeviceVector::getDevice() for type %d address %s found %p", 5681 type, address.string(), device.get()); 5682 return device; 5683} 5684 5685sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDeviceFromId( 5686 audio_port_handle_t id) const 5687{ 5688 sp<DeviceDescriptor> device; 5689 for (size_t i = 0; i < size(); i++) { 5690 ALOGV("DeviceVector::getDeviceFromId(%d) itemAt(%d)->mId %d", id, i, itemAt(i)->mId); 5691 if (itemAt(i)->mId == id) { 5692 device = itemAt(i); 5693 break; 5694 } 5695 } 5696 return device; 5697} 5698 5699AudioPolicyManager::DeviceVector AudioPolicyManager::DeviceVector::getDevicesFromType( 5700 audio_devices_t type) const 5701{ 5702 DeviceVector devices; 5703 for (size_t i = 0; (i < size()) && (type != AUDIO_DEVICE_NONE); i++) { 5704 if (itemAt(i)->mDeviceType & type & ~AUDIO_DEVICE_BIT_IN) { 5705 devices.add(itemAt(i)); 5706 type &= ~itemAt(i)->mDeviceType; 5707 ALOGV("DeviceVector::getDevicesFromType() for type %x found %p", 5708 itemAt(i)->mDeviceType, itemAt(i).get()); 5709 } 5710 } 5711 return devices; 5712} 5713 5714sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDeviceFromName( 5715 const String8& name) const 5716{ 5717 sp<DeviceDescriptor> device; 5718 for (size_t i = 0; i < size(); i++) { 5719 if (itemAt(i)->mName == name) { 5720 device = itemAt(i); 5721 break; 5722 } 5723 } 5724 return device; 5725} 5726 5727void AudioPolicyManager::DeviceDescriptor::toAudioPortConfig( 5728 struct audio_port_config *dstConfig, 5729 const struct audio_port_config *srcConfig) const 5730{ 5731 dstConfig->config_mask = AUDIO_PORT_CONFIG_CHANNEL_MASK|AUDIO_PORT_CONFIG_GAIN; 5732 if (srcConfig != NULL) { 5733 dstConfig->config_mask &= srcConfig->config_mask; 5734 } 5735 5736 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 5737 5738 dstConfig->id = mId; 5739 dstConfig->role = audio_is_output_device(mDeviceType) ? 5740 AUDIO_PORT_ROLE_SINK : AUDIO_PORT_ROLE_SOURCE; 5741 dstConfig->type = AUDIO_PORT_TYPE_DEVICE; 5742 dstConfig->ext.device.type = mDeviceType; 5743 dstConfig->ext.device.hw_module = mModule->mHandle; 5744 strncpy(dstConfig->ext.device.address, mAddress.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN); 5745} 5746 5747void AudioPolicyManager::DeviceDescriptor::toAudioPort(struct audio_port *port) const 5748{ 5749 ALOGV("DeviceVector::toAudioPort() handle %d type %x", mId, mDeviceType); 5750 AudioPort::toAudioPort(port); 5751 port->id = mId; 5752 toAudioPortConfig(&port->active_config); 5753 port->ext.device.type = mDeviceType; 5754 port->ext.device.hw_module = mModule->mHandle; 5755 strncpy(port->ext.device.address, mAddress.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN); 5756} 5757 5758status_t AudioPolicyManager::DeviceDescriptor::dump(int fd, int spaces, int index) const 5759{ 5760 const size_t SIZE = 256; 5761 char buffer[SIZE]; 5762 String8 result; 5763 5764 snprintf(buffer, SIZE, "%*sDevice %d:\n", spaces, "", index+1); 5765 result.append(buffer); 5766 if (mId != 0) { 5767 snprintf(buffer, SIZE, "%*s- id: %2d\n", spaces, "", mId); 5768 result.append(buffer); 5769 } 5770 snprintf(buffer, SIZE, "%*s- type: %-48s\n", spaces, "", 5771 enumToString(sDeviceNameToEnumTable, 5772 ARRAY_SIZE(sDeviceNameToEnumTable), 5773 mDeviceType)); 5774 result.append(buffer); 5775 if (mAddress.size() != 0) { 5776 snprintf(buffer, SIZE, "%*s- address: %-32s\n", spaces, "", mAddress.string()); 5777 result.append(buffer); 5778 } 5779 if (mChannelMask != AUDIO_CHANNEL_NONE) { 5780 snprintf(buffer, SIZE, "%*s- channel mask: %08x\n", spaces, "", mChannelMask); 5781 result.append(buffer); 5782 } 5783 write(fd, result.string(), result.size()); 5784 AudioPort::dump(fd, spaces); 5785 5786 return NO_ERROR; 5787} 5788 5789 5790// --- audio_policy.conf file parsing 5791 5792audio_output_flags_t AudioPolicyManager::parseFlagNames(char *name) 5793{ 5794 uint32_t flag = 0; 5795 5796 // it is OK to cast name to non const here as we are not going to use it after 5797 // strtok() modifies it 5798 char *flagName = strtok(name, "|"); 5799 while (flagName != NULL) { 5800 if (strlen(flagName) != 0) { 5801 flag |= stringToEnum(sFlagNameToEnumTable, 5802 ARRAY_SIZE(sFlagNameToEnumTable), 5803 flagName); 5804 } 5805 flagName = strtok(NULL, "|"); 5806 } 5807 //force direct flag if offload flag is set: offloading implies a direct output stream 5808 // and all common behaviors are driven by checking only the direct flag 5809 // this should normally be set appropriately in the policy configuration file 5810 if ((flag & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 5811 flag |= AUDIO_OUTPUT_FLAG_DIRECT; 5812 } 5813 5814 return (audio_output_flags_t)flag; 5815} 5816 5817audio_devices_t AudioPolicyManager::parseDeviceNames(char *name) 5818{ 5819 uint32_t device = 0; 5820 5821 char *devName = strtok(name, "|"); 5822 while (devName != NULL) { 5823 if (strlen(devName) != 0) { 5824 device |= stringToEnum(sDeviceNameToEnumTable, 5825 ARRAY_SIZE(sDeviceNameToEnumTable), 5826 devName); 5827 } 5828 devName = strtok(NULL, "|"); 5829 } 5830 return device; 5831} 5832 5833void AudioPolicyManager::loadHwModule(cnode *root) 5834{ 5835 status_t status = NAME_NOT_FOUND; 5836 cnode *node; 5837 sp<HwModule> module = new HwModule(root->name); 5838 5839 node = config_find(root, DEVICES_TAG); 5840 if (node != NULL) { 5841 node = node->first_child; 5842 while (node) { 5843 ALOGV("loadHwModule() loading device %s", node->name); 5844 status_t tmpStatus = module->loadDevice(node); 5845 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 5846 status = tmpStatus; 5847 } 5848 node = node->next; 5849 } 5850 } 5851 node = config_find(root, OUTPUTS_TAG); 5852 if (node != NULL) { 5853 node = node->first_child; 5854 while (node) { 5855 ALOGV("loadHwModule() loading output %s", node->name); 5856 status_t tmpStatus = module->loadOutput(node); 5857 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 5858 status = tmpStatus; 5859 } 5860 node = node->next; 5861 } 5862 } 5863 node = config_find(root, INPUTS_TAG); 5864 if (node != NULL) { 5865 node = node->first_child; 5866 while (node) { 5867 ALOGV("loadHwModule() loading input %s", node->name); 5868 status_t tmpStatus = module->loadInput(node); 5869 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 5870 status = tmpStatus; 5871 } 5872 node = node->next; 5873 } 5874 } 5875 loadGlobalConfig(root, module); 5876 5877 if (status == NO_ERROR) { 5878 mHwModules.add(module); 5879 } 5880} 5881 5882void AudioPolicyManager::loadHwModules(cnode *root) 5883{ 5884 cnode *node = config_find(root, AUDIO_HW_MODULE_TAG); 5885 if (node == NULL) { 5886 return; 5887 } 5888 5889 node = node->first_child; 5890 while (node) { 5891 ALOGV("loadHwModules() loading module %s", node->name); 5892 loadHwModule(node); 5893 node = node->next; 5894 } 5895} 5896 5897void AudioPolicyManager::loadGlobalConfig(cnode *root, const sp<HwModule>& module) 5898{ 5899 cnode *node = config_find(root, GLOBAL_CONFIG_TAG); 5900 5901 if (node == NULL) { 5902 return; 5903 } 5904 DeviceVector declaredDevices; 5905 if (module != NULL) { 5906 declaredDevices = module->mDeclaredDevices; 5907 } 5908 5909 node = node->first_child; 5910 while (node) { 5911 if (strcmp(ATTACHED_OUTPUT_DEVICES_TAG, node->name) == 0) { 5912 mAvailableOutputDevices.loadDevicesFromName((char *)node->value, 5913 declaredDevices); 5914 ALOGV("loadGlobalConfig() Attached Output Devices %08x", 5915 mAvailableOutputDevices.types()); 5916 } else if (strcmp(DEFAULT_OUTPUT_DEVICE_TAG, node->name) == 0) { 5917 audio_devices_t device = (audio_devices_t)stringToEnum(sDeviceNameToEnumTable, 5918 ARRAY_SIZE(sDeviceNameToEnumTable), 5919 (char *)node->value); 5920 if (device != AUDIO_DEVICE_NONE) { 5921 mDefaultOutputDevice = new DeviceDescriptor(String8(""), device); 5922 } else { 5923 ALOGW("loadGlobalConfig() default device not specified"); 5924 } 5925 ALOGV("loadGlobalConfig() mDefaultOutputDevice %08x", mDefaultOutputDevice->mDeviceType); 5926 } else if (strcmp(ATTACHED_INPUT_DEVICES_TAG, node->name) == 0) { 5927 mAvailableInputDevices.loadDevicesFromName((char *)node->value, 5928 declaredDevices); 5929 ALOGV("loadGlobalConfig() Available InputDevices %08x", mAvailableInputDevices.types()); 5930 } else if (strcmp(SPEAKER_DRC_ENABLED_TAG, node->name) == 0) { 5931 mSpeakerDrcEnabled = stringToBool((char *)node->value); 5932 ALOGV("loadGlobalConfig() mSpeakerDrcEnabled = %d", mSpeakerDrcEnabled); 5933 } else if (strcmp(AUDIO_HAL_VERSION_TAG, node->name) == 0) { 5934 uint32_t major, minor; 5935 sscanf((char *)node->value, "%u.%u", &major, &minor); 5936 module->mHalVersion = HARDWARE_DEVICE_API_VERSION(major, minor); 5937 ALOGV("loadGlobalConfig() mHalVersion = %04x major %u minor %u", 5938 module->mHalVersion, major, minor); 5939 } 5940 node = node->next; 5941 } 5942} 5943 5944status_t AudioPolicyManager::loadAudioPolicyConfig(const char *path) 5945{ 5946 cnode *root; 5947 char *data; 5948 5949 data = (char *)load_file(path, NULL); 5950 if (data == NULL) { 5951 return -ENODEV; 5952 } 5953 root = config_node("", ""); 5954 config_load(root, data); 5955 5956 loadHwModules(root); 5957 // legacy audio_policy.conf files have one global_configuration section 5958 loadGlobalConfig(root, getModuleFromName(AUDIO_HARDWARE_MODULE_ID_PRIMARY)); 5959 config_free(root); 5960 free(root); 5961 free(data); 5962 5963 ALOGI("loadAudioPolicyConfig() loaded %s\n", path); 5964 5965 return NO_ERROR; 5966} 5967 5968void AudioPolicyManager::defaultAudioPolicyConfig(void) 5969{ 5970 sp<HwModule> module; 5971 sp<IOProfile> profile; 5972 sp<DeviceDescriptor> defaultInputDevice = new DeviceDescriptor(String8(""), 5973 AUDIO_DEVICE_IN_BUILTIN_MIC); 5974 mAvailableOutputDevices.add(mDefaultOutputDevice); 5975 mAvailableInputDevices.add(defaultInputDevice); 5976 5977 module = new HwModule("primary"); 5978 5979 profile = new IOProfile(String8("primary"), AUDIO_PORT_ROLE_SOURCE, module); 5980 profile->mSamplingRates.add(44100); 5981 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 5982 profile->mChannelMasks.add(AUDIO_CHANNEL_OUT_STEREO); 5983 profile->mSupportedDevices.add(mDefaultOutputDevice); 5984 profile->mFlags = AUDIO_OUTPUT_FLAG_PRIMARY; 5985 module->mOutputProfiles.add(profile); 5986 5987 profile = new IOProfile(String8("primary"), AUDIO_PORT_ROLE_SINK, module); 5988 profile->mSamplingRates.add(8000); 5989 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 5990 profile->mChannelMasks.add(AUDIO_CHANNEL_IN_MONO); 5991 profile->mSupportedDevices.add(defaultInputDevice); 5992 module->mInputProfiles.add(profile); 5993 5994 mHwModules.add(module); 5995} 5996 5997audio_stream_type_t AudioPolicyManager::streamTypefromAttributesInt(const audio_attributes_t *attr) 5998{ 5999 // flags to stream type mapping 6000 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 6001 return AUDIO_STREAM_ENFORCED_AUDIBLE; 6002 } 6003 if ((attr->flags & AUDIO_FLAG_SCO) == AUDIO_FLAG_SCO) { 6004 return AUDIO_STREAM_BLUETOOTH_SCO; 6005 } 6006 6007 // usage to stream type mapping 6008 switch (attr->usage) { 6009 case AUDIO_USAGE_MEDIA: 6010 case AUDIO_USAGE_GAME: 6011 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 6012 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 6013 return AUDIO_STREAM_MUSIC; 6014 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 6015 return AUDIO_STREAM_SYSTEM; 6016 case AUDIO_USAGE_VOICE_COMMUNICATION: 6017 return AUDIO_STREAM_VOICE_CALL; 6018 6019 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 6020 return AUDIO_STREAM_DTMF; 6021 6022 case AUDIO_USAGE_ALARM: 6023 return AUDIO_STREAM_ALARM; 6024 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 6025 return AUDIO_STREAM_RING; 6026 6027 case AUDIO_USAGE_NOTIFICATION: 6028 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 6029 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 6030 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 6031 case AUDIO_USAGE_NOTIFICATION_EVENT: 6032 return AUDIO_STREAM_NOTIFICATION; 6033 6034 case AUDIO_USAGE_UNKNOWN: 6035 default: 6036 return AUDIO_STREAM_MUSIC; 6037 } 6038} 6039}; // namespace android 6040