AudioPolicyManager.cpp revision a57ab8da6fe56fdb91dfc95ebd0282eb879dde53
1/* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#define LOG_TAG "AudioPolicyManager" 18//#define LOG_NDEBUG 0 19 20//#define VERY_VERBOSE_LOGGING 21#ifdef VERY_VERBOSE_LOGGING 22#define ALOGVV ALOGV 23#else 24#define ALOGVV(a...) do { } while(0) 25#endif 26 27// A device mask for all audio input devices that are considered "virtual" when evaluating 28// active inputs in getActiveInput() 29#define APM_AUDIO_IN_DEVICE_VIRTUAL_ALL AUDIO_DEVICE_IN_REMOTE_SUBMIX 30// A device mask for all audio output devices that are considered "remote" when evaluating 31// active output devices in isStreamActiveRemotely() 32#define APM_AUDIO_OUT_DEVICE_REMOTE_ALL AUDIO_DEVICE_OUT_REMOTE_SUBMIX 33// A device mask for all audio input and output devices where matching inputs/outputs on device 34// type alone is not enough: the address must match too 35#define APM_AUDIO_DEVICE_MATCH_ADDRESS_ALL (AUDIO_DEVICE_IN_REMOTE_SUBMIX | \ 36 AUDIO_DEVICE_OUT_REMOTE_SUBMIX) 37 38#include <inttypes.h> 39#include <math.h> 40 41#include <cutils/properties.h> 42#include <utils/Log.h> 43#include <hardware/audio.h> 44#include <hardware/audio_effect.h> 45#include <media/AudioParameter.h> 46#include <soundtrigger/SoundTrigger.h> 47#include "AudioPolicyManager.h" 48#include "audio_policy_conf.h" 49 50namespace android { 51 52// ---------------------------------------------------------------------------- 53// Definitions for audio_policy.conf file parsing 54// ---------------------------------------------------------------------------- 55 56struct StringToEnum { 57 const char *name; 58 uint32_t value; 59}; 60 61#define STRING_TO_ENUM(string) { #string, string } 62#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) 63 64const StringToEnum sDeviceNameToEnumTable[] = { 65 STRING_TO_ENUM(AUDIO_DEVICE_OUT_EARPIECE), 66 STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPEAKER), 67 STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADSET), 68 STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADPHONE), 69 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO), 70 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET), 71 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT), 72 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_SCO), 73 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP), 74 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES), 75 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER), 76 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_A2DP), 77 STRING_TO_ENUM(AUDIO_DEVICE_OUT_AUX_DIGITAL), 78 STRING_TO_ENUM(AUDIO_DEVICE_OUT_HDMI), 79 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET), 80 STRING_TO_ENUM(AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET), 81 STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_ACCESSORY), 82 STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_DEVICE), 83 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_USB), 84 STRING_TO_ENUM(AUDIO_DEVICE_OUT_REMOTE_SUBMIX), 85 STRING_TO_ENUM(AUDIO_DEVICE_OUT_TELEPHONY_TX), 86 STRING_TO_ENUM(AUDIO_DEVICE_OUT_LINE), 87 STRING_TO_ENUM(AUDIO_DEVICE_OUT_HDMI_ARC), 88 STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPDIF), 89 STRING_TO_ENUM(AUDIO_DEVICE_OUT_FM), 90 STRING_TO_ENUM(AUDIO_DEVICE_OUT_AUX_LINE), 91 STRING_TO_ENUM(AUDIO_DEVICE_IN_AMBIENT), 92 STRING_TO_ENUM(AUDIO_DEVICE_IN_BUILTIN_MIC), 93 STRING_TO_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET), 94 STRING_TO_ENUM(AUDIO_DEVICE_IN_ALL_SCO), 95 STRING_TO_ENUM(AUDIO_DEVICE_IN_WIRED_HEADSET), 96 STRING_TO_ENUM(AUDIO_DEVICE_IN_AUX_DIGITAL), 97 STRING_TO_ENUM(AUDIO_DEVICE_IN_HDMI), 98 STRING_TO_ENUM(AUDIO_DEVICE_IN_VOICE_CALL), 99 STRING_TO_ENUM(AUDIO_DEVICE_IN_TELEPHONY_RX), 100 STRING_TO_ENUM(AUDIO_DEVICE_IN_BACK_MIC), 101 STRING_TO_ENUM(AUDIO_DEVICE_IN_REMOTE_SUBMIX), 102 STRING_TO_ENUM(AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET), 103 STRING_TO_ENUM(AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET), 104 STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_ACCESSORY), 105 STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_DEVICE), 106 STRING_TO_ENUM(AUDIO_DEVICE_IN_FM_TUNER), 107 STRING_TO_ENUM(AUDIO_DEVICE_IN_TV_TUNER), 108 STRING_TO_ENUM(AUDIO_DEVICE_IN_LINE), 109 STRING_TO_ENUM(AUDIO_DEVICE_IN_SPDIF), 110 STRING_TO_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_A2DP), 111 STRING_TO_ENUM(AUDIO_DEVICE_IN_LOOPBACK), 112}; 113 114const StringToEnum sFlagNameToEnumTable[] = { 115 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DIRECT), 116 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_PRIMARY), 117 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_FAST), 118 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DEEP_BUFFER), 119 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD), 120 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_NON_BLOCKING), 121}; 122 123const StringToEnum sFormatNameToEnumTable[] = { 124 STRING_TO_ENUM(AUDIO_FORMAT_PCM_16_BIT), 125 STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_BIT), 126 STRING_TO_ENUM(AUDIO_FORMAT_PCM_32_BIT), 127 STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_24_BIT), 128 STRING_TO_ENUM(AUDIO_FORMAT_PCM_FLOAT), 129 STRING_TO_ENUM(AUDIO_FORMAT_PCM_24_BIT_PACKED), 130 STRING_TO_ENUM(AUDIO_FORMAT_MP3), 131 STRING_TO_ENUM(AUDIO_FORMAT_AAC), 132 STRING_TO_ENUM(AUDIO_FORMAT_AAC_MAIN), 133 STRING_TO_ENUM(AUDIO_FORMAT_AAC_LC), 134 STRING_TO_ENUM(AUDIO_FORMAT_AAC_SSR), 135 STRING_TO_ENUM(AUDIO_FORMAT_AAC_LTP), 136 STRING_TO_ENUM(AUDIO_FORMAT_AAC_HE_V1), 137 STRING_TO_ENUM(AUDIO_FORMAT_AAC_SCALABLE), 138 STRING_TO_ENUM(AUDIO_FORMAT_AAC_ERLC), 139 STRING_TO_ENUM(AUDIO_FORMAT_AAC_LD), 140 STRING_TO_ENUM(AUDIO_FORMAT_AAC_HE_V2), 141 STRING_TO_ENUM(AUDIO_FORMAT_AAC_ELD), 142 STRING_TO_ENUM(AUDIO_FORMAT_VORBIS), 143 STRING_TO_ENUM(AUDIO_FORMAT_HE_AAC_V1), 144 STRING_TO_ENUM(AUDIO_FORMAT_HE_AAC_V2), 145 STRING_TO_ENUM(AUDIO_FORMAT_OPUS), 146 STRING_TO_ENUM(AUDIO_FORMAT_AC3), 147 STRING_TO_ENUM(AUDIO_FORMAT_E_AC3), 148}; 149 150const StringToEnum sOutChannelsNameToEnumTable[] = { 151 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_MONO), 152 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_STEREO), 153 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_QUAD), 154 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_5POINT1), 155 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_7POINT1), 156}; 157 158const StringToEnum sInChannelsNameToEnumTable[] = { 159 STRING_TO_ENUM(AUDIO_CHANNEL_IN_MONO), 160 STRING_TO_ENUM(AUDIO_CHANNEL_IN_STEREO), 161 STRING_TO_ENUM(AUDIO_CHANNEL_IN_FRONT_BACK), 162}; 163 164const StringToEnum sGainModeNameToEnumTable[] = { 165 STRING_TO_ENUM(AUDIO_GAIN_MODE_JOINT), 166 STRING_TO_ENUM(AUDIO_GAIN_MODE_CHANNELS), 167 STRING_TO_ENUM(AUDIO_GAIN_MODE_RAMP), 168}; 169 170 171uint32_t AudioPolicyManager::stringToEnum(const struct StringToEnum *table, 172 size_t size, 173 const char *name) 174{ 175 for (size_t i = 0; i < size; i++) { 176 if (strcmp(table[i].name, name) == 0) { 177 ALOGV("stringToEnum() found %s", table[i].name); 178 return table[i].value; 179 } 180 } 181 return 0; 182} 183 184const char *AudioPolicyManager::enumToString(const struct StringToEnum *table, 185 size_t size, 186 uint32_t value) 187{ 188 for (size_t i = 0; i < size; i++) { 189 if (table[i].value == value) { 190 return table[i].name; 191 } 192 } 193 return ""; 194} 195 196bool AudioPolicyManager::stringToBool(const char *value) 197{ 198 return ((strcasecmp("true", value) == 0) || (strcmp("1", value) == 0)); 199} 200 201 202// ---------------------------------------------------------------------------- 203// AudioPolicyInterface implementation 204// ---------------------------------------------------------------------------- 205 206 207status_t AudioPolicyManager::setDeviceConnectionState(audio_devices_t device, 208 audio_policy_dev_state_t state, 209 const char *device_address) 210{ 211 String8 address = (device_address == NULL) ? String8("") : String8(device_address); 212 213 ALOGV("setDeviceConnectionState() device: %x, state %d, address %s", 214 device, state, address.string()); 215 216 // connect/disconnect only 1 device at a time 217 if (!audio_is_output_device(device) && !audio_is_input_device(device)) return BAD_VALUE; 218 219 // handle output devices 220 if (audio_is_output_device(device)) { 221 SortedVector <audio_io_handle_t> outputs; 222 223 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 224 devDesc->mAddress = address; 225 ssize_t index = mAvailableOutputDevices.indexOf(devDesc); 226 227 // save a copy of the opened output descriptors before any output is opened or closed 228 // by checkOutputsForDevice(). This will be needed by checkOutputForAllStrategies() 229 mPreviousOutputs = mOutputs; 230 switch (state) 231 { 232 // handle output device connection 233 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: 234 if (index >= 0) { 235 ALOGW("setDeviceConnectionState() device already connected: %x", device); 236 return INVALID_OPERATION; 237 } 238 ALOGV("setDeviceConnectionState() connecting device %x", device); 239 240 // register new device as available 241 index = mAvailableOutputDevices.add(devDesc); 242 if (index >= 0) { 243 mAvailableOutputDevices[index]->mId = nextUniqueId(); 244 sp<HwModule> module = getModuleForDevice(device); 245 ALOG_ASSERT(module != NULL, "setDeviceConnectionState():" 246 "could not find HW module for device %08x", device); 247 mAvailableOutputDevices[index]->mModule = module; 248 } else { 249 return NO_MEMORY; 250 } 251 252 if (checkOutputsForDevice(device, state, outputs, address) != NO_ERROR) { 253 mAvailableOutputDevices.remove(devDesc); 254 return INVALID_OPERATION; 255 } 256 // outputs should never be empty here 257 ALOG_ASSERT(outputs.size() != 0, "setDeviceConnectionState():" 258 "checkOutputsForDevice() returned no outputs but status OK"); 259 ALOGV("setDeviceConnectionState() checkOutputsForDevice() returned %zu outputs", 260 outputs.size()); 261 break; 262 // handle output device disconnection 263 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 264 if (index < 0) { 265 ALOGW("setDeviceConnectionState() device not connected: %x", device); 266 return INVALID_OPERATION; 267 } 268 269 ALOGV("setDeviceConnectionState() disconnecting device %x", device); 270 // remove device from available output devices 271 mAvailableOutputDevices.remove(devDesc); 272 273 checkOutputsForDevice(device, state, outputs, address); 274 } break; 275 276 default: 277 ALOGE("setDeviceConnectionState() invalid state: %x", state); 278 return BAD_VALUE; 279 } 280 281 // checkA2dpSuspend must run before checkOutputForAllStrategies so that A2DP 282 // output is suspended before any tracks are moved to it 283 checkA2dpSuspend(); 284 checkOutputForAllStrategies(); 285 // outputs must be closed after checkOutputForAllStrategies() is executed 286 if (!outputs.isEmpty()) { 287 for (size_t i = 0; i < outputs.size(); i++) { 288 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 289 // close unused outputs after device disconnection or direct outputs that have been 290 // opened by checkOutputsForDevice() to query dynamic parameters 291 if ((state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) || 292 (((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) && 293 (desc->mDirectOpenCount == 0))) { 294 closeOutput(outputs[i]); 295 } 296 } 297 // check again after closing A2DP output to reset mA2dpSuspended if needed 298 checkA2dpSuspend(); 299 } 300 301 updateDevicesAndOutputs(); 302 for (size_t i = 0; i < mOutputs.size(); i++) { 303 // do not force device change on duplicated output because if device is 0, it will 304 // also force a device 0 for the two outputs it is duplicated to which may override 305 // a valid device selection on those outputs. 306 bool force = !mOutputs.valueAt(i)->isDuplicated() 307 && (!deviceDistinguishesOnAddress(device) 308 // always force when disconnecting (a non-duplicated device) 309 || (state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE)); 310 setOutputDevice(mOutputs.keyAt(i), 311 getNewOutputDevice(mOutputs.keyAt(i), true /*fromCache*/), 312 force, 0); 313 } 314 315 mpClientInterface->onAudioPortListUpdate(); 316 return NO_ERROR; 317 } // end if is output device 318 319 // handle input devices 320 if (audio_is_input_device(device)) { 321 SortedVector <audio_io_handle_t> inputs; 322 323 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 324 devDesc->mAddress = address; 325 ssize_t index = mAvailableInputDevices.indexOf(devDesc); 326 switch (state) 327 { 328 // handle input device connection 329 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: { 330 if (index >= 0) { 331 ALOGW("setDeviceConnectionState() device already connected: %d", device); 332 return INVALID_OPERATION; 333 } 334 sp<HwModule> module = getModuleForDevice(device); 335 if (module == NULL) { 336 ALOGW("setDeviceConnectionState(): could not find HW module for device %08x", 337 device); 338 return INVALID_OPERATION; 339 } 340 if (checkInputsForDevice(device, state, inputs, address) != NO_ERROR) { 341 return INVALID_OPERATION; 342 } 343 344 index = mAvailableInputDevices.add(devDesc); 345 if (index >= 0) { 346 mAvailableInputDevices[index]->mId = nextUniqueId(); 347 mAvailableInputDevices[index]->mModule = module; 348 } else { 349 return NO_MEMORY; 350 } 351 } break; 352 353 // handle input device disconnection 354 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: { 355 if (index < 0) { 356 ALOGW("setDeviceConnectionState() device not connected: %d", device); 357 return INVALID_OPERATION; 358 } 359 checkInputsForDevice(device, state, inputs, address); 360 mAvailableInputDevices.remove(devDesc); 361 } break; 362 363 default: 364 ALOGE("setDeviceConnectionState() invalid state: %x", state); 365 return BAD_VALUE; 366 } 367 368 closeAllInputs(); 369 370 mpClientInterface->onAudioPortListUpdate(); 371 return NO_ERROR; 372 } // end if is input device 373 374 ALOGW("setDeviceConnectionState() invalid device: %x", device); 375 return BAD_VALUE; 376} 377 378audio_policy_dev_state_t AudioPolicyManager::getDeviceConnectionState(audio_devices_t device, 379 const char *device_address) 380{ 381 audio_policy_dev_state_t state = AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 382 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(String8(""), device); 383 devDesc->mAddress = (device_address == NULL) ? String8("") : String8(device_address); 384 ssize_t index; 385 DeviceVector *deviceVector; 386 387 if (audio_is_output_device(device)) { 388 deviceVector = &mAvailableOutputDevices; 389 } else if (audio_is_input_device(device)) { 390 deviceVector = &mAvailableInputDevices; 391 } else { 392 ALOGW("getDeviceConnectionState() invalid device type %08x", device); 393 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 394 } 395 396 index = deviceVector->indexOf(devDesc); 397 if (index >= 0) { 398 return AUDIO_POLICY_DEVICE_STATE_AVAILABLE; 399 } else { 400 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE; 401 } 402} 403 404void AudioPolicyManager::setPhoneState(audio_mode_t state) 405{ 406 ALOGV("setPhoneState() state %d", state); 407 audio_devices_t newDevice = AUDIO_DEVICE_NONE; 408 if (state < 0 || state >= AUDIO_MODE_CNT) { 409 ALOGW("setPhoneState() invalid state %d", state); 410 return; 411 } 412 413 if (state == mPhoneState ) { 414 ALOGW("setPhoneState() setting same state %d", state); 415 return; 416 } 417 418 // if leaving call state, handle special case of active streams 419 // pertaining to sonification strategy see handleIncallSonification() 420 if (isInCall()) { 421 ALOGV("setPhoneState() in call state management: new state is %d", state); 422 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 423 handleIncallSonification((audio_stream_type_t)stream, false, true); 424 } 425 } 426 427 // store previous phone state for management of sonification strategy below 428 int oldState = mPhoneState; 429 mPhoneState = state; 430 bool force = false; 431 432 // are we entering or starting a call 433 if (!isStateInCall(oldState) && isStateInCall(state)) { 434 ALOGV(" Entering call in setPhoneState()"); 435 // force routing command to audio hardware when starting a call 436 // even if no device change is needed 437 force = true; 438 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 439 mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] = 440 sVolumeProfiles[AUDIO_STREAM_VOICE_CALL][j]; 441 } 442 } else if (isStateInCall(oldState) && !isStateInCall(state)) { 443 ALOGV(" Exiting call in setPhoneState()"); 444 // force routing command to audio hardware when exiting a call 445 // even if no device change is needed 446 force = true; 447 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 448 mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] = 449 sVolumeProfiles[AUDIO_STREAM_DTMF][j]; 450 } 451 } else if (isStateInCall(state) && (state != oldState)) { 452 ALOGV(" Switching between telephony and VoIP in setPhoneState()"); 453 // force routing command to audio hardware when switching between telephony and VoIP 454 // even if no device change is needed 455 force = true; 456 } 457 458 // check for device and output changes triggered by new phone state 459 newDevice = getNewOutputDevice(mPrimaryOutput, false /*fromCache*/); 460 checkA2dpSuspend(); 461 checkOutputForAllStrategies(); 462 updateDevicesAndOutputs(); 463 464 sp<AudioOutputDescriptor> hwOutputDesc = mOutputs.valueFor(mPrimaryOutput); 465 466 // force routing command to audio hardware when ending call 467 // even if no device change is needed 468 if (isStateInCall(oldState) && newDevice == AUDIO_DEVICE_NONE) { 469 newDevice = hwOutputDesc->device(); 470 } 471 472 int delayMs = 0; 473 if (isStateInCall(state)) { 474 nsecs_t sysTime = systemTime(); 475 for (size_t i = 0; i < mOutputs.size(); i++) { 476 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 477 // mute media and sonification strategies and delay device switch by the largest 478 // latency of any output where either strategy is active. 479 // This avoid sending the ring tone or music tail into the earpiece or headset. 480 if ((desc->isStrategyActive(STRATEGY_MEDIA, 481 SONIFICATION_HEADSET_MUSIC_DELAY, 482 sysTime) || 483 desc->isStrategyActive(STRATEGY_SONIFICATION, 484 SONIFICATION_HEADSET_MUSIC_DELAY, 485 sysTime)) && 486 (delayMs < (int)desc->mLatency*2)) { 487 delayMs = desc->mLatency*2; 488 } 489 setStrategyMute(STRATEGY_MEDIA, true, mOutputs.keyAt(i)); 490 setStrategyMute(STRATEGY_MEDIA, false, mOutputs.keyAt(i), MUTE_TIME_MS, 491 getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/)); 492 setStrategyMute(STRATEGY_SONIFICATION, true, mOutputs.keyAt(i)); 493 setStrategyMute(STRATEGY_SONIFICATION, false, mOutputs.keyAt(i), MUTE_TIME_MS, 494 getDeviceForStrategy(STRATEGY_SONIFICATION, true /*fromCache*/)); 495 } 496 } 497 498 // change routing is necessary 499 setOutputDevice(mPrimaryOutput, newDevice, force, delayMs); 500 501 // if entering in call state, handle special case of active streams 502 // pertaining to sonification strategy see handleIncallSonification() 503 if (isStateInCall(state)) { 504 ALOGV("setPhoneState() in call state management: new state is %d", state); 505 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 506 handleIncallSonification((audio_stream_type_t)stream, true, true); 507 } 508 } 509 510 // Flag that ringtone volume must be limited to music volume until we exit MODE_RINGTONE 511 if (state == AUDIO_MODE_RINGTONE && 512 isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY)) { 513 mLimitRingtoneVolume = true; 514 } else { 515 mLimitRingtoneVolume = false; 516 } 517} 518 519void AudioPolicyManager::setForceUse(audio_policy_force_use_t usage, 520 audio_policy_forced_cfg_t config) 521{ 522 ALOGV("setForceUse() usage %d, config %d, mPhoneState %d", usage, config, mPhoneState); 523 524 bool forceVolumeReeval = false; 525 switch(usage) { 526 case AUDIO_POLICY_FORCE_FOR_COMMUNICATION: 527 if (config != AUDIO_POLICY_FORCE_SPEAKER && config != AUDIO_POLICY_FORCE_BT_SCO && 528 config != AUDIO_POLICY_FORCE_NONE) { 529 ALOGW("setForceUse() invalid config %d for FOR_COMMUNICATION", config); 530 return; 531 } 532 forceVolumeReeval = true; 533 mForceUse[usage] = config; 534 break; 535 case AUDIO_POLICY_FORCE_FOR_MEDIA: 536 if (config != AUDIO_POLICY_FORCE_HEADPHONES && config != AUDIO_POLICY_FORCE_BT_A2DP && 537 config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 538 config != AUDIO_POLICY_FORCE_ANALOG_DOCK && 539 config != AUDIO_POLICY_FORCE_DIGITAL_DOCK && config != AUDIO_POLICY_FORCE_NONE && 540 config != AUDIO_POLICY_FORCE_NO_BT_A2DP) { 541 ALOGW("setForceUse() invalid config %d for FOR_MEDIA", config); 542 return; 543 } 544 mForceUse[usage] = config; 545 break; 546 case AUDIO_POLICY_FORCE_FOR_RECORD: 547 if (config != AUDIO_POLICY_FORCE_BT_SCO && config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 548 config != AUDIO_POLICY_FORCE_NONE) { 549 ALOGW("setForceUse() invalid config %d for FOR_RECORD", config); 550 return; 551 } 552 mForceUse[usage] = config; 553 break; 554 case AUDIO_POLICY_FORCE_FOR_DOCK: 555 if (config != AUDIO_POLICY_FORCE_NONE && config != AUDIO_POLICY_FORCE_BT_CAR_DOCK && 556 config != AUDIO_POLICY_FORCE_BT_DESK_DOCK && 557 config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && 558 config != AUDIO_POLICY_FORCE_ANALOG_DOCK && 559 config != AUDIO_POLICY_FORCE_DIGITAL_DOCK) { 560 ALOGW("setForceUse() invalid config %d for FOR_DOCK", config); 561 } 562 forceVolumeReeval = true; 563 mForceUse[usage] = config; 564 break; 565 case AUDIO_POLICY_FORCE_FOR_SYSTEM: 566 if (config != AUDIO_POLICY_FORCE_NONE && 567 config != AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) { 568 ALOGW("setForceUse() invalid config %d for FOR_SYSTEM", config); 569 } 570 forceVolumeReeval = true; 571 mForceUse[usage] = config; 572 break; 573 case AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO: 574 if (config != AUDIO_POLICY_FORCE_NONE && 575 config != AUDIO_POLICY_FORCE_HDMI_SYSTEM_AUDIO_ENFORCED) { 576 ALOGW("setForceUse() invalid config %d forHDMI_SYSTEM_AUDIO", config); 577 } 578 mForceUse[usage] = config; 579 break; 580 default: 581 ALOGW("setForceUse() invalid usage %d", usage); 582 break; 583 } 584 585 // check for device and output changes triggered by new force usage 586 checkA2dpSuspend(); 587 checkOutputForAllStrategies(); 588 updateDevicesAndOutputs(); 589 for (size_t i = 0; i < mOutputs.size(); i++) { 590 audio_io_handle_t output = mOutputs.keyAt(i); 591 audio_devices_t newDevice = getNewOutputDevice(output, true /*fromCache*/); 592 setOutputDevice(output, newDevice, (newDevice != AUDIO_DEVICE_NONE)); 593 if (forceVolumeReeval && (newDevice != AUDIO_DEVICE_NONE)) { 594 applyStreamVolumes(output, newDevice, 0, true); 595 } 596 } 597 598 audio_io_handle_t activeInput = getActiveInput(); 599 if (activeInput != 0) { 600 setInputDevice(activeInput, getNewInputDevice(activeInput)); 601 } 602 603} 604 605audio_policy_forced_cfg_t AudioPolicyManager::getForceUse(audio_policy_force_use_t usage) 606{ 607 return mForceUse[usage]; 608} 609 610void AudioPolicyManager::setSystemProperty(const char* property, const char* value) 611{ 612 ALOGV("setSystemProperty() property %s, value %s", property, value); 613} 614 615// Find a direct output profile compatible with the parameters passed, even if the input flags do 616// not explicitly request a direct output 617sp<AudioPolicyManager::IOProfile> AudioPolicyManager::getProfileForDirectOutput( 618 audio_devices_t device, 619 uint32_t samplingRate, 620 audio_format_t format, 621 audio_channel_mask_t channelMask, 622 audio_output_flags_t flags) 623{ 624 for (size_t i = 0; i < mHwModules.size(); i++) { 625 if (mHwModules[i]->mHandle == 0) { 626 continue; 627 } 628 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) { 629 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 630 bool found = profile->isCompatibleProfile(device, samplingRate, 631 NULL /*updatedSamplingRate*/, format, channelMask, 632 flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD ? 633 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD : AUDIO_OUTPUT_FLAG_DIRECT); 634 if (found && (mAvailableOutputDevices.types() & profile->mSupportedDevices.types())) { 635 return profile; 636 } 637 } 638 } 639 return 0; 640} 641 642audio_io_handle_t AudioPolicyManager::getOutput(audio_stream_type_t stream, 643 uint32_t samplingRate, 644 audio_format_t format, 645 audio_channel_mask_t channelMask, 646 audio_output_flags_t flags, 647 const audio_offload_info_t *offloadInfo) 648{ 649 650 routing_strategy strategy = getStrategy(stream); 651 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 652 ALOGV("getOutput() device %d, stream %d, samplingRate %d, format %x, channelMask %x, flags %x", 653 device, stream, samplingRate, format, channelMask, flags); 654 655 return getOutputForDevice(device, stream, samplingRate,format, channelMask, flags, 656 offloadInfo); 657} 658 659audio_io_handle_t AudioPolicyManager::getOutputForAttr(const audio_attributes_t *attr, 660 uint32_t samplingRate, 661 audio_format_t format, 662 audio_channel_mask_t channelMask, 663 audio_output_flags_t flags, 664 const audio_offload_info_t *offloadInfo) 665{ 666 if (attr == NULL) { 667 ALOGE("getOutputForAttr() called with NULL audio attributes"); 668 return 0; 669 } 670 ALOGV("getOutputForAttr() usage=%d, content=%d, tag=%s", 671 attr->usage, attr->content_type, attr->tags); 672 673 // TODO this is where filtering for custom policies (rerouting, dynamic sources) will go 674 routing_strategy strategy = (routing_strategy) getStrategyForAttr(attr); 675 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 676 ALOGV("getOutputForAttr() device %d, samplingRate %d, format %x, channelMask %x, flags %x", 677 device, samplingRate, format, channelMask, flags); 678 679 audio_stream_type_t stream = streamTypefromAttributesInt(attr); 680 return getOutputForDevice(device, stream, samplingRate, format, channelMask, flags, 681 offloadInfo); 682} 683 684audio_io_handle_t AudioPolicyManager::getOutputForDevice( 685 audio_devices_t device, 686 audio_stream_type_t stream, 687 uint32_t samplingRate, 688 audio_format_t format, 689 audio_channel_mask_t channelMask, 690 audio_output_flags_t flags, 691 const audio_offload_info_t *offloadInfo) 692{ 693 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 694 uint32_t latency = 0; 695 status_t status; 696 697#ifdef AUDIO_POLICY_TEST 698 if (mCurOutput != 0) { 699 ALOGV("getOutput() test output mCurOutput %d, samplingRate %d, format %d, channelMask %x, mDirectOutput %d", 700 mCurOutput, mTestSamplingRate, mTestFormat, mTestChannels, mDirectOutput); 701 702 if (mTestOutputs[mCurOutput] == 0) { 703 ALOGV("getOutput() opening test output"); 704 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(NULL); 705 outputDesc->mDevice = mTestDevice; 706 outputDesc->mLatency = mTestLatencyMs; 707 outputDesc->mFlags = 708 (audio_output_flags_t)(mDirectOutput ? AUDIO_OUTPUT_FLAG_DIRECT : 0); 709 outputDesc->mRefCount[stream] = 0; 710 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 711 config.sample_rate = mTestSamplingRate; 712 config.channel_mask = mTestChannels; 713 config.format = mTestFormat; 714 if (offloadInfo != NULL) { 715 config.offload_info = *offloadInfo; 716 } 717 status = mpClientInterface->openOutput(0, 718 &mTestOutputs[mCurOutput], 719 &config, 720 &outputDesc->mDevice, 721 String8(""), 722 &outputDesc->mLatency, 723 outputDesc->mFlags); 724 if (status == NO_ERROR) { 725 outputDesc->mSamplingRate = config.sample_rate; 726 outputDesc->mFormat = config.format; 727 outputDesc->mChannelMask = config.channel_mask; 728 AudioParameter outputCmd = AudioParameter(); 729 outputCmd.addInt(String8("set_id"),mCurOutput); 730 mpClientInterface->setParameters(mTestOutputs[mCurOutput],outputCmd.toString()); 731 addOutput(mTestOutputs[mCurOutput], outputDesc); 732 } 733 } 734 return mTestOutputs[mCurOutput]; 735 } 736#endif //AUDIO_POLICY_TEST 737 738 // open a direct output if required by specified parameters 739 //force direct flag if offload flag is set: offloading implies a direct output stream 740 // and all common behaviors are driven by checking only the direct flag 741 // this should normally be set appropriately in the policy configuration file 742 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 743 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT); 744 } 745 746 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 747 // creating an offloaded track and tearing it down immediately after start when audioflinger 748 // detects there is an active non offloadable effect. 749 // FIXME: We should check the audio session here but we do not have it in this context. 750 // This may prevent offloading in rare situations where effects are left active by apps 751 // in the background. 752 sp<IOProfile> profile; 753 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) || 754 !isNonOffloadableEffectEnabled()) { 755 profile = getProfileForDirectOutput(device, 756 samplingRate, 757 format, 758 channelMask, 759 (audio_output_flags_t)flags); 760 } 761 762 if (profile != 0) { 763 sp<AudioOutputDescriptor> outputDesc = NULL; 764 765 for (size_t i = 0; i < mOutputs.size(); i++) { 766 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 767 if (!desc->isDuplicated() && (profile == desc->mProfile)) { 768 outputDesc = desc; 769 // reuse direct output if currently open and configured with same parameters 770 if ((samplingRate == outputDesc->mSamplingRate) && 771 (format == outputDesc->mFormat) && 772 (channelMask == outputDesc->mChannelMask)) { 773 outputDesc->mDirectOpenCount++; 774 ALOGV("getOutput() reusing direct output %d", mOutputs.keyAt(i)); 775 return mOutputs.keyAt(i); 776 } 777 } 778 } 779 // close direct output if currently open and configured with different parameters 780 if (outputDesc != NULL) { 781 closeOutput(outputDesc->mIoHandle); 782 } 783 outputDesc = new AudioOutputDescriptor(profile); 784 outputDesc->mDevice = device; 785 outputDesc->mLatency = 0; 786 outputDesc->mFlags =(audio_output_flags_t) (outputDesc->mFlags | flags); 787 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 788 config.sample_rate = samplingRate; 789 config.channel_mask = channelMask; 790 config.format = format; 791 if (offloadInfo != NULL) { 792 config.offload_info = *offloadInfo; 793 } 794 status = mpClientInterface->openOutput(profile->mModule->mHandle, 795 &output, 796 &config, 797 &outputDesc->mDevice, 798 String8(""), 799 &outputDesc->mLatency, 800 outputDesc->mFlags); 801 802 // only accept an output with the requested parameters 803 if (status != NO_ERROR || 804 (samplingRate != 0 && samplingRate != config.sample_rate) || 805 (format != AUDIO_FORMAT_DEFAULT && format != config.format) || 806 (channelMask != 0 && channelMask != config.channel_mask)) { 807 ALOGV("getOutput() failed opening direct output: output %d samplingRate %d %d," 808 "format %d %d, channelMask %04x %04x", output, samplingRate, 809 outputDesc->mSamplingRate, format, outputDesc->mFormat, channelMask, 810 outputDesc->mChannelMask); 811 if (output != AUDIO_IO_HANDLE_NONE) { 812 mpClientInterface->closeOutput(output); 813 } 814 return AUDIO_IO_HANDLE_NONE; 815 } 816 outputDesc->mSamplingRate = config.sample_rate; 817 outputDesc->mChannelMask = config.channel_mask; 818 outputDesc->mFormat = config.format; 819 outputDesc->mRefCount[stream] = 0; 820 outputDesc->mStopTime[stream] = 0; 821 outputDesc->mDirectOpenCount = 1; 822 823 audio_io_handle_t srcOutput = getOutputForEffect(); 824 addOutput(output, outputDesc); 825 audio_io_handle_t dstOutput = getOutputForEffect(); 826 if (dstOutput == output) { 827 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, srcOutput, dstOutput); 828 } 829 mPreviousOutputs = mOutputs; 830 ALOGV("getOutput() returns new direct output %d", output); 831 mpClientInterface->onAudioPortListUpdate(); 832 return output; 833 } 834 835 // ignoring channel mask due to downmix capability in mixer 836 837 // open a non direct output 838 839 // for non direct outputs, only PCM is supported 840 if (audio_is_linear_pcm(format)) { 841 // get which output is suitable for the specified stream. The actual 842 // routing change will happen when startOutput() will be called 843 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(device, mOutputs); 844 845 output = selectOutput(outputs, flags); 846 } 847 ALOGW_IF((output == 0), "getOutput() could not find output for stream %d, samplingRate %d," 848 "format %d, channels %x, flags %x", stream, samplingRate, format, channelMask, flags); 849 850 ALOGV("getOutput() returns output %d", output); 851 852 return output; 853} 854 855audio_io_handle_t AudioPolicyManager::selectOutput(const SortedVector<audio_io_handle_t>& outputs, 856 audio_output_flags_t flags) 857{ 858 // select one output among several that provide a path to a particular device or set of 859 // devices (the list was previously build by getOutputsForDevice()). 860 // The priority is as follows: 861 // 1: the output with the highest number of requested policy flags 862 // 2: the primary output 863 // 3: the first output in the list 864 865 if (outputs.size() == 0) { 866 return 0; 867 } 868 if (outputs.size() == 1) { 869 return outputs[0]; 870 } 871 872 int maxCommonFlags = 0; 873 audio_io_handle_t outputFlags = 0; 874 audio_io_handle_t outputPrimary = 0; 875 876 for (size_t i = 0; i < outputs.size(); i++) { 877 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 878 if (!outputDesc->isDuplicated()) { 879 int commonFlags = popcount(outputDesc->mProfile->mFlags & flags); 880 if (commonFlags > maxCommonFlags) { 881 outputFlags = outputs[i]; 882 maxCommonFlags = commonFlags; 883 ALOGV("selectOutput() commonFlags for output %d, %04x", outputs[i], commonFlags); 884 } 885 if (outputDesc->mProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 886 outputPrimary = outputs[i]; 887 } 888 } 889 } 890 891 if (outputFlags != 0) { 892 return outputFlags; 893 } 894 if (outputPrimary != 0) { 895 return outputPrimary; 896 } 897 898 return outputs[0]; 899} 900 901status_t AudioPolicyManager::startOutput(audio_io_handle_t output, 902 audio_stream_type_t stream, 903 int session) 904{ 905 ALOGV("startOutput() output %d, stream %d, session %d", output, stream, session); 906 ssize_t index = mOutputs.indexOfKey(output); 907 if (index < 0) { 908 ALOGW("startOutput() unknown output %d", output); 909 return BAD_VALUE; 910 } 911 912 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 913 914 // increment usage count for this stream on the requested output: 915 // NOTE that the usage count is the same for duplicated output and hardware output which is 916 // necessary for a correct control of hardware output routing by startOutput() and stopOutput() 917 outputDesc->changeRefCount(stream, 1); 918 919 if (outputDesc->mRefCount[stream] == 1) { 920 audio_devices_t newDevice = getNewOutputDevice(output, false /*fromCache*/); 921 routing_strategy strategy = getStrategy(stream); 922 bool shouldWait = (strategy == STRATEGY_SONIFICATION) || 923 (strategy == STRATEGY_SONIFICATION_RESPECTFUL); 924 uint32_t waitMs = 0; 925 bool force = false; 926 for (size_t i = 0; i < mOutputs.size(); i++) { 927 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 928 if (desc != outputDesc) { 929 // force a device change if any other output is managed by the same hw 930 // module and has a current device selection that differs from selected device. 931 // In this case, the audio HAL must receive the new device selection so that it can 932 // change the device currently selected by the other active output. 933 if (outputDesc->sharesHwModuleWith(desc) && 934 desc->device() != newDevice) { 935 force = true; 936 } 937 // wait for audio on other active outputs to be presented when starting 938 // a notification so that audio focus effect can propagate. 939 uint32_t latency = desc->latency(); 940 if (shouldWait && desc->isActive(latency * 2) && (waitMs < latency)) { 941 waitMs = latency; 942 } 943 } 944 } 945 uint32_t muteWaitMs = setOutputDevice(output, newDevice, force); 946 947 // handle special case for sonification while in call 948 if (isInCall()) { 949 handleIncallSonification(stream, true, false); 950 } 951 952 // apply volume rules for current stream and device if necessary 953 checkAndSetVolume(stream, 954 mStreams[stream].getVolumeIndex(newDevice), 955 output, 956 newDevice); 957 958 // update the outputs if starting an output with a stream that can affect notification 959 // routing 960 handleNotificationRoutingForStream(stream); 961 if (waitMs > muteWaitMs) { 962 usleep((waitMs - muteWaitMs) * 2 * 1000); 963 } 964 } 965 return NO_ERROR; 966} 967 968 969status_t AudioPolicyManager::stopOutput(audio_io_handle_t output, 970 audio_stream_type_t stream, 971 int session) 972{ 973 ALOGV("stopOutput() output %d, stream %d, session %d", output, stream, session); 974 ssize_t index = mOutputs.indexOfKey(output); 975 if (index < 0) { 976 ALOGW("stopOutput() unknown output %d", output); 977 return BAD_VALUE; 978 } 979 980 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 981 982 // handle special case for sonification while in call 983 if (isInCall()) { 984 handleIncallSonification(stream, false, false); 985 } 986 987 if (outputDesc->mRefCount[stream] > 0) { 988 // decrement usage count of this stream on the output 989 outputDesc->changeRefCount(stream, -1); 990 // store time at which the stream was stopped - see isStreamActive() 991 if (outputDesc->mRefCount[stream] == 0) { 992 outputDesc->mStopTime[stream] = systemTime(); 993 audio_devices_t newDevice = getNewOutputDevice(output, false /*fromCache*/); 994 // delay the device switch by twice the latency because stopOutput() is executed when 995 // the track stop() command is received and at that time the audio track buffer can 996 // still contain data that needs to be drained. The latency only covers the audio HAL 997 // and kernel buffers. Also the latency does not always include additional delay in the 998 // audio path (audio DSP, CODEC ...) 999 setOutputDevice(output, newDevice, false, outputDesc->mLatency*2); 1000 1001 // force restoring the device selection on other active outputs if it differs from the 1002 // one being selected for this output 1003 for (size_t i = 0; i < mOutputs.size(); i++) { 1004 audio_io_handle_t curOutput = mOutputs.keyAt(i); 1005 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i); 1006 if (curOutput != output && 1007 desc->isActive() && 1008 outputDesc->sharesHwModuleWith(desc) && 1009 (newDevice != desc->device())) { 1010 setOutputDevice(curOutput, 1011 getNewOutputDevice(curOutput, false /*fromCache*/), 1012 true, 1013 outputDesc->mLatency*2); 1014 } 1015 } 1016 // update the outputs if stopping one with a stream that can affect notification routing 1017 handleNotificationRoutingForStream(stream); 1018 } 1019 return NO_ERROR; 1020 } else { 1021 ALOGW("stopOutput() refcount is already 0 for output %d", output); 1022 return INVALID_OPERATION; 1023 } 1024} 1025 1026void AudioPolicyManager::releaseOutput(audio_io_handle_t output) 1027{ 1028 ALOGV("releaseOutput() %d", output); 1029 ssize_t index = mOutputs.indexOfKey(output); 1030 if (index < 0) { 1031 ALOGW("releaseOutput() releasing unknown output %d", output); 1032 return; 1033 } 1034 1035#ifdef AUDIO_POLICY_TEST 1036 int testIndex = testOutputIndex(output); 1037 if (testIndex != 0) { 1038 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(index); 1039 if (outputDesc->isActive()) { 1040 mpClientInterface->closeOutput(output); 1041 mOutputs.removeItem(output); 1042 mTestOutputs[testIndex] = 0; 1043 } 1044 return; 1045 } 1046#endif //AUDIO_POLICY_TEST 1047 1048 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(index); 1049 if (desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) { 1050 if (desc->mDirectOpenCount <= 0) { 1051 ALOGW("releaseOutput() invalid open count %d for output %d", 1052 desc->mDirectOpenCount, output); 1053 return; 1054 } 1055 if (--desc->mDirectOpenCount == 0) { 1056 closeOutput(output); 1057 // If effects where present on the output, audioflinger moved them to the primary 1058 // output by default: move them back to the appropriate output. 1059 audio_io_handle_t dstOutput = getOutputForEffect(); 1060 if (dstOutput != mPrimaryOutput) { 1061 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, mPrimaryOutput, dstOutput); 1062 } 1063 mpClientInterface->onAudioPortListUpdate(); 1064 } 1065 } 1066} 1067 1068 1069audio_io_handle_t AudioPolicyManager::getInput(audio_source_t inputSource, 1070 uint32_t samplingRate, 1071 audio_format_t format, 1072 audio_channel_mask_t channelMask, 1073 audio_session_t session, 1074 audio_input_flags_t flags) 1075{ 1076 ALOGV("getInput() inputSource %d, samplingRate %d, format %d, channelMask %x, session %d, " 1077 "flags %#x", 1078 inputSource, samplingRate, format, channelMask, session, flags); 1079 1080 audio_devices_t device = getDeviceForInputSource(inputSource); 1081 1082 if (device == AUDIO_DEVICE_NONE) { 1083 ALOGW("getInput() could not find device for inputSource %d", inputSource); 1084 return AUDIO_IO_HANDLE_NONE; 1085 } 1086 1087 // adapt channel selection to input source 1088 switch (inputSource) { 1089 case AUDIO_SOURCE_VOICE_UPLINK: 1090 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK; 1091 break; 1092 case AUDIO_SOURCE_VOICE_DOWNLINK: 1093 channelMask = AUDIO_CHANNEL_IN_VOICE_DNLINK; 1094 break; 1095 case AUDIO_SOURCE_VOICE_CALL: 1096 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK | AUDIO_CHANNEL_IN_VOICE_DNLINK; 1097 break; 1098 default: 1099 break; 1100 } 1101 1102 sp<IOProfile> profile = getInputProfile(device, 1103 samplingRate, 1104 format, 1105 channelMask, 1106 flags); 1107 if (profile == 0) { 1108 ALOGW("getInput() could not find profile for device 0x%X, samplingRate %u, format %#x, " 1109 "channelMask 0x%X, flags %#x", 1110 device, samplingRate, format, channelMask, flags); 1111 return AUDIO_IO_HANDLE_NONE; 1112 } 1113 1114 if (profile->mModule->mHandle == 0) { 1115 ALOGE("getInput(): HW module %s not opened", profile->mModule->mName); 1116 return AUDIO_IO_HANDLE_NONE; 1117 } 1118 1119 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 1120 config.sample_rate = samplingRate; 1121 config.channel_mask = channelMask; 1122 config.format = format; 1123 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 1124 1125 bool isSoundTrigger = false; 1126 if (inputSource == AUDIO_SOURCE_HOTWORD) { 1127 ssize_t index = mSoundTriggerSessions.indexOfKey(session); 1128 if (index >= 0) { 1129 input = mSoundTriggerSessions.valueFor(session); 1130 isSoundTrigger = true; 1131 ALOGV("SoundTrigger capture on session %d input %d", session, input); 1132 } 1133 } 1134 1135 status_t status = mpClientInterface->openInput(profile->mModule->mHandle, 1136 &input, 1137 &config, 1138 &device, 1139 String8(""), 1140 inputSource, 1141 flags); 1142 1143 // only accept input with the exact requested set of parameters 1144 if (status != NO_ERROR || 1145 (samplingRate != config.sample_rate) || 1146 (format != config.format) || 1147 (channelMask != config.channel_mask)) { 1148 ALOGW("getInput() failed opening input: samplingRate %d, format %d, channelMask %x", 1149 samplingRate, format, channelMask); 1150 if (input != AUDIO_IO_HANDLE_NONE) { 1151 mpClientInterface->closeInput(input); 1152 } 1153 return AUDIO_IO_HANDLE_NONE; 1154 } 1155 1156 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(profile); 1157 inputDesc->mInputSource = inputSource; 1158 inputDesc->mRefCount = 0; 1159 inputDesc->mOpenRefCount = 1; 1160 inputDesc->mSamplingRate = samplingRate; 1161 inputDesc->mFormat = format; 1162 inputDesc->mChannelMask = channelMask; 1163 inputDesc->mDevice = device; 1164 inputDesc->mSessions.add(session); 1165 inputDesc->mIsSoundTrigger = isSoundTrigger; 1166 1167 addInput(input, inputDesc); 1168 mpClientInterface->onAudioPortListUpdate(); 1169 return input; 1170} 1171 1172status_t AudioPolicyManager::startInput(audio_io_handle_t input, 1173 audio_session_t session) 1174{ 1175 ALOGV("startInput() input %d", input); 1176 ssize_t index = mInputs.indexOfKey(input); 1177 if (index < 0) { 1178 ALOGW("startInput() unknown input %d", input); 1179 return BAD_VALUE; 1180 } 1181 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1182 1183 index = inputDesc->mSessions.indexOf(session); 1184 if (index < 0) { 1185 ALOGW("startInput() unknown session %d on input %d", session, input); 1186 return BAD_VALUE; 1187 } 1188 1189 // virtual input devices are compatible with other input devices 1190 if (!isVirtualInputDevice(inputDesc->mDevice)) { 1191 1192 // for a non-virtual input device, check if there is another (non-virtual) active input 1193 audio_io_handle_t activeInput = getActiveInput(); 1194 if (activeInput != 0 && activeInput != input) { 1195 1196 // If the already active input uses AUDIO_SOURCE_HOTWORD then it is closed, 1197 // otherwise the active input continues and the new input cannot be started. 1198 sp<AudioInputDescriptor> activeDesc = mInputs.valueFor(activeInput); 1199 if (activeDesc->mInputSource == AUDIO_SOURCE_HOTWORD) { 1200 ALOGW("startInput(%d) preempting low-priority input %d", input, activeInput); 1201 stopInput(activeInput, activeDesc->mSessions.itemAt(0)); 1202 releaseInput(activeInput, activeDesc->mSessions.itemAt(0)); 1203 } else { 1204 ALOGE("startInput(%d) failed: other input %d already started", input, activeInput); 1205 return INVALID_OPERATION; 1206 } 1207 } 1208 } 1209 1210 if (inputDesc->mRefCount == 0) { 1211 if (activeInputsCount() == 0) { 1212 SoundTrigger::setCaptureState(true); 1213 } 1214 setInputDevice(input, getNewInputDevice(input), true /* force */); 1215 1216 // Automatically enable the remote submix output when input is started. 1217 // For remote submix (a virtual device), we open only one input per capture request. 1218 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1219 setDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1220 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, AUDIO_REMOTE_SUBMIX_DEVICE_ADDRESS); 1221 } 1222 } 1223 1224 ALOGV("AudioPolicyManager::startInput() input source = %d", inputDesc->mInputSource); 1225 1226 inputDesc->mRefCount++; 1227 return NO_ERROR; 1228} 1229 1230status_t AudioPolicyManager::stopInput(audio_io_handle_t input, 1231 audio_session_t session) 1232{ 1233 ALOGV("stopInput() input %d", input); 1234 ssize_t index = mInputs.indexOfKey(input); 1235 if (index < 0) { 1236 ALOGW("stopInput() unknown input %d", input); 1237 return BAD_VALUE; 1238 } 1239 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1240 1241 index = inputDesc->mSessions.indexOf(session); 1242 if (index < 0) { 1243 ALOGW("stopInput() unknown session %d on input %d", session, input); 1244 return BAD_VALUE; 1245 } 1246 1247 if (inputDesc->mRefCount == 0) { 1248 ALOGW("stopInput() input %d already stopped", input); 1249 return INVALID_OPERATION; 1250 } 1251 1252 inputDesc->mRefCount--; 1253 if (inputDesc->mRefCount == 0) { 1254 1255 // automatically disable the remote submix output when input is stopped 1256 if (audio_is_remote_submix_device(inputDesc->mDevice)) { 1257 setDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, 1258 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, AUDIO_REMOTE_SUBMIX_DEVICE_ADDRESS); 1259 } 1260 1261 resetInputDevice(input); 1262 1263 if (activeInputsCount() == 0) { 1264 SoundTrigger::setCaptureState(false); 1265 } 1266 } 1267 return NO_ERROR; 1268} 1269 1270void AudioPolicyManager::releaseInput(audio_io_handle_t input, 1271 audio_session_t session) 1272{ 1273 ALOGV("releaseInput() %d", input); 1274 ssize_t index = mInputs.indexOfKey(input); 1275 if (index < 0) { 1276 ALOGW("releaseInput() releasing unknown input %d", input); 1277 return; 1278 } 1279 sp<AudioInputDescriptor> inputDesc = mInputs.valueAt(index); 1280 ALOG_ASSERT(inputDesc != 0); 1281 1282 index = inputDesc->mSessions.indexOf(session); 1283 if (index < 0) { 1284 ALOGW("releaseInput() unknown session %d on input %d", session, input); 1285 return; 1286 } 1287 inputDesc->mSessions.remove(session); 1288 if (inputDesc->mOpenRefCount == 0) { 1289 ALOGW("releaseInput() invalid open ref count %d", inputDesc->mOpenRefCount); 1290 return; 1291 } 1292 inputDesc->mOpenRefCount--; 1293 if (inputDesc->mOpenRefCount > 0) { 1294 ALOGV("releaseInput() exit > 0"); 1295 return; 1296 } 1297 1298 mpClientInterface->closeInput(input); 1299 mInputs.removeItem(input); 1300 nextAudioPortGeneration(); 1301 mpClientInterface->onAudioPortListUpdate(); 1302 ALOGV("releaseInput() exit"); 1303} 1304 1305void AudioPolicyManager::closeAllInputs() { 1306 for(size_t input_index = 0; input_index < mInputs.size(); input_index++) { 1307 mpClientInterface->closeInput(mInputs.keyAt(input_index)); 1308 } 1309 mInputs.clear(); 1310 nextAudioPortGeneration(); 1311} 1312 1313void AudioPolicyManager::initStreamVolume(audio_stream_type_t stream, 1314 int indexMin, 1315 int indexMax) 1316{ 1317 ALOGV("initStreamVolume() stream %d, min %d, max %d", stream , indexMin, indexMax); 1318 if (indexMin < 0 || indexMin >= indexMax) { 1319 ALOGW("initStreamVolume() invalid index limits for stream %d, min %d, max %d", stream , indexMin, indexMax); 1320 return; 1321 } 1322 mStreams[stream].mIndexMin = indexMin; 1323 mStreams[stream].mIndexMax = indexMax; 1324} 1325 1326status_t AudioPolicyManager::setStreamVolumeIndex(audio_stream_type_t stream, 1327 int index, 1328 audio_devices_t device) 1329{ 1330 1331 if ((index < mStreams[stream].mIndexMin) || (index > mStreams[stream].mIndexMax)) { 1332 return BAD_VALUE; 1333 } 1334 if (!audio_is_output_device(device)) { 1335 return BAD_VALUE; 1336 } 1337 1338 // Force max volume if stream cannot be muted 1339 if (!mStreams[stream].mCanBeMuted) index = mStreams[stream].mIndexMax; 1340 1341 ALOGV("setStreamVolumeIndex() stream %d, device %04x, index %d", 1342 stream, device, index); 1343 1344 // if device is AUDIO_DEVICE_OUT_DEFAULT set default value and 1345 // clear all device specific values 1346 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1347 mStreams[stream].mIndexCur.clear(); 1348 } 1349 mStreams[stream].mIndexCur.add(device, index); 1350 1351 // compute and apply stream volume on all outputs according to connected device 1352 status_t status = NO_ERROR; 1353 for (size_t i = 0; i < mOutputs.size(); i++) { 1354 audio_devices_t curDevice = 1355 getDeviceForVolume(mOutputs.valueAt(i)->device()); 1356 if ((device == AUDIO_DEVICE_OUT_DEFAULT) || (device == curDevice)) { 1357 status_t volStatus = checkAndSetVolume(stream, index, mOutputs.keyAt(i), curDevice); 1358 if (volStatus != NO_ERROR) { 1359 status = volStatus; 1360 } 1361 } 1362 } 1363 return status; 1364} 1365 1366status_t AudioPolicyManager::getStreamVolumeIndex(audio_stream_type_t stream, 1367 int *index, 1368 audio_devices_t device) 1369{ 1370 if (index == NULL) { 1371 return BAD_VALUE; 1372 } 1373 if (!audio_is_output_device(device)) { 1374 return BAD_VALUE; 1375 } 1376 // if device is AUDIO_DEVICE_OUT_DEFAULT, return volume for device corresponding to 1377 // the strategy the stream belongs to. 1378 if (device == AUDIO_DEVICE_OUT_DEFAULT) { 1379 device = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/); 1380 } 1381 device = getDeviceForVolume(device); 1382 1383 *index = mStreams[stream].getVolumeIndex(device); 1384 ALOGV("getStreamVolumeIndex() stream %d device %08x index %d", stream, device, *index); 1385 return NO_ERROR; 1386} 1387 1388audio_io_handle_t AudioPolicyManager::selectOutputForEffects( 1389 const SortedVector<audio_io_handle_t>& outputs) 1390{ 1391 // select one output among several suitable for global effects. 1392 // The priority is as follows: 1393 // 1: An offloaded output. If the effect ends up not being offloadable, 1394 // AudioFlinger will invalidate the track and the offloaded output 1395 // will be closed causing the effect to be moved to a PCM output. 1396 // 2: A deep buffer output 1397 // 3: the first output in the list 1398 1399 if (outputs.size() == 0) { 1400 return 0; 1401 } 1402 1403 audio_io_handle_t outputOffloaded = 0; 1404 audio_io_handle_t outputDeepBuffer = 0; 1405 1406 for (size_t i = 0; i < outputs.size(); i++) { 1407 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]); 1408 ALOGV("selectOutputForEffects outputs[%zu] flags %x", i, desc->mFlags); 1409 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1410 outputOffloaded = outputs[i]; 1411 } 1412 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) != 0) { 1413 outputDeepBuffer = outputs[i]; 1414 } 1415 } 1416 1417 ALOGV("selectOutputForEffects outputOffloaded %d outputDeepBuffer %d", 1418 outputOffloaded, outputDeepBuffer); 1419 if (outputOffloaded != 0) { 1420 return outputOffloaded; 1421 } 1422 if (outputDeepBuffer != 0) { 1423 return outputDeepBuffer; 1424 } 1425 1426 return outputs[0]; 1427} 1428 1429audio_io_handle_t AudioPolicyManager::getOutputForEffect(const effect_descriptor_t *desc) 1430{ 1431 // apply simple rule where global effects are attached to the same output as MUSIC streams 1432 1433 routing_strategy strategy = getStrategy(AUDIO_STREAM_MUSIC); 1434 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/); 1435 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(device, mOutputs); 1436 1437 audio_io_handle_t output = selectOutputForEffects(dstOutputs); 1438 ALOGV("getOutputForEffect() got output %d for fx %s flags %x", 1439 output, (desc == NULL) ? "unspecified" : desc->name, (desc == NULL) ? 0 : desc->flags); 1440 1441 return output; 1442} 1443 1444status_t AudioPolicyManager::registerEffect(const effect_descriptor_t *desc, 1445 audio_io_handle_t io, 1446 uint32_t strategy, 1447 int session, 1448 int id) 1449{ 1450 ssize_t index = mOutputs.indexOfKey(io); 1451 if (index < 0) { 1452 index = mInputs.indexOfKey(io); 1453 if (index < 0) { 1454 ALOGW("registerEffect() unknown io %d", io); 1455 return INVALID_OPERATION; 1456 } 1457 } 1458 1459 if (mTotalEffectsMemory + desc->memoryUsage > getMaxEffectsMemory()) { 1460 ALOGW("registerEffect() memory limit exceeded for Fx %s, Memory %d KB", 1461 desc->name, desc->memoryUsage); 1462 return INVALID_OPERATION; 1463 } 1464 mTotalEffectsMemory += desc->memoryUsage; 1465 ALOGV("registerEffect() effect %s, io %d, strategy %d session %d id %d", 1466 desc->name, io, strategy, session, id); 1467 ALOGV("registerEffect() memory %d, total memory %d", desc->memoryUsage, mTotalEffectsMemory); 1468 1469 sp<EffectDescriptor> effectDesc = new EffectDescriptor(); 1470 memcpy (&effectDesc->mDesc, desc, sizeof(effect_descriptor_t)); 1471 effectDesc->mIo = io; 1472 effectDesc->mStrategy = (routing_strategy)strategy; 1473 effectDesc->mSession = session; 1474 effectDesc->mEnabled = false; 1475 1476 mEffects.add(id, effectDesc); 1477 1478 return NO_ERROR; 1479} 1480 1481status_t AudioPolicyManager::unregisterEffect(int id) 1482{ 1483 ssize_t index = mEffects.indexOfKey(id); 1484 if (index < 0) { 1485 ALOGW("unregisterEffect() unknown effect ID %d", id); 1486 return INVALID_OPERATION; 1487 } 1488 1489 sp<EffectDescriptor> effectDesc = mEffects.valueAt(index); 1490 1491 setEffectEnabled(effectDesc, false); 1492 1493 if (mTotalEffectsMemory < effectDesc->mDesc.memoryUsage) { 1494 ALOGW("unregisterEffect() memory %d too big for total %d", 1495 effectDesc->mDesc.memoryUsage, mTotalEffectsMemory); 1496 effectDesc->mDesc.memoryUsage = mTotalEffectsMemory; 1497 } 1498 mTotalEffectsMemory -= effectDesc->mDesc.memoryUsage; 1499 ALOGV("unregisterEffect() effect %s, ID %d, memory %d total memory %d", 1500 effectDesc->mDesc.name, id, effectDesc->mDesc.memoryUsage, mTotalEffectsMemory); 1501 1502 mEffects.removeItem(id); 1503 1504 return NO_ERROR; 1505} 1506 1507status_t AudioPolicyManager::setEffectEnabled(int id, bool enabled) 1508{ 1509 ssize_t index = mEffects.indexOfKey(id); 1510 if (index < 0) { 1511 ALOGW("unregisterEffect() unknown effect ID %d", id); 1512 return INVALID_OPERATION; 1513 } 1514 1515 return setEffectEnabled(mEffects.valueAt(index), enabled); 1516} 1517 1518status_t AudioPolicyManager::setEffectEnabled(const sp<EffectDescriptor>& effectDesc, bool enabled) 1519{ 1520 if (enabled == effectDesc->mEnabled) { 1521 ALOGV("setEffectEnabled(%s) effect already %s", 1522 enabled?"true":"false", enabled?"enabled":"disabled"); 1523 return INVALID_OPERATION; 1524 } 1525 1526 if (enabled) { 1527 if (mTotalEffectsCpuLoad + effectDesc->mDesc.cpuLoad > getMaxEffectsCpuLoad()) { 1528 ALOGW("setEffectEnabled(true) CPU Load limit exceeded for Fx %s, CPU %f MIPS", 1529 effectDesc->mDesc.name, (float)effectDesc->mDesc.cpuLoad/10); 1530 return INVALID_OPERATION; 1531 } 1532 mTotalEffectsCpuLoad += effectDesc->mDesc.cpuLoad; 1533 ALOGV("setEffectEnabled(true) total CPU %d", mTotalEffectsCpuLoad); 1534 } else { 1535 if (mTotalEffectsCpuLoad < effectDesc->mDesc.cpuLoad) { 1536 ALOGW("setEffectEnabled(false) CPU load %d too high for total %d", 1537 effectDesc->mDesc.cpuLoad, mTotalEffectsCpuLoad); 1538 effectDesc->mDesc.cpuLoad = mTotalEffectsCpuLoad; 1539 } 1540 mTotalEffectsCpuLoad -= effectDesc->mDesc.cpuLoad; 1541 ALOGV("setEffectEnabled(false) total CPU %d", mTotalEffectsCpuLoad); 1542 } 1543 effectDesc->mEnabled = enabled; 1544 return NO_ERROR; 1545} 1546 1547bool AudioPolicyManager::isNonOffloadableEffectEnabled() 1548{ 1549 for (size_t i = 0; i < mEffects.size(); i++) { 1550 sp<EffectDescriptor> effectDesc = mEffects.valueAt(i); 1551 if (effectDesc->mEnabled && (effectDesc->mStrategy == STRATEGY_MEDIA) && 1552 ((effectDesc->mDesc.flags & EFFECT_FLAG_OFFLOAD_SUPPORTED) == 0)) { 1553 ALOGV("isNonOffloadableEffectEnabled() non offloadable effect %s enabled on session %d", 1554 effectDesc->mDesc.name, effectDesc->mSession); 1555 return true; 1556 } 1557 } 1558 return false; 1559} 1560 1561bool AudioPolicyManager::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const 1562{ 1563 nsecs_t sysTime = systemTime(); 1564 for (size_t i = 0; i < mOutputs.size(); i++) { 1565 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 1566 if (outputDesc->isStreamActive(stream, inPastMs, sysTime)) { 1567 return true; 1568 } 1569 } 1570 return false; 1571} 1572 1573bool AudioPolicyManager::isStreamActiveRemotely(audio_stream_type_t stream, 1574 uint32_t inPastMs) const 1575{ 1576 nsecs_t sysTime = systemTime(); 1577 for (size_t i = 0; i < mOutputs.size(); i++) { 1578 const sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 1579 if (((outputDesc->device() & APM_AUDIO_OUT_DEVICE_REMOTE_ALL) != 0) && 1580 outputDesc->isStreamActive(stream, inPastMs, sysTime)) { 1581 return true; 1582 } 1583 } 1584 return false; 1585} 1586 1587bool AudioPolicyManager::isSourceActive(audio_source_t source) const 1588{ 1589 for (size_t i = 0; i < mInputs.size(); i++) { 1590 const sp<AudioInputDescriptor> inputDescriptor = mInputs.valueAt(i); 1591 if ((inputDescriptor->mInputSource == (int)source || 1592 (source == AUDIO_SOURCE_VOICE_RECOGNITION && 1593 inputDescriptor->mInputSource == AUDIO_SOURCE_HOTWORD)) 1594 && (inputDescriptor->mRefCount > 0)) { 1595 return true; 1596 } 1597 } 1598 return false; 1599} 1600 1601 1602status_t AudioPolicyManager::dump(int fd) 1603{ 1604 const size_t SIZE = 256; 1605 char buffer[SIZE]; 1606 String8 result; 1607 1608 snprintf(buffer, SIZE, "\nAudioPolicyManager Dump: %p\n", this); 1609 result.append(buffer); 1610 1611 snprintf(buffer, SIZE, " Primary Output: %d\n", mPrimaryOutput); 1612 result.append(buffer); 1613 snprintf(buffer, SIZE, " Phone state: %d\n", mPhoneState); 1614 result.append(buffer); 1615 snprintf(buffer, SIZE, " Force use for communications %d\n", 1616 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]); 1617 result.append(buffer); 1618 snprintf(buffer, SIZE, " Force use for media %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA]); 1619 result.append(buffer); 1620 snprintf(buffer, SIZE, " Force use for record %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD]); 1621 result.append(buffer); 1622 snprintf(buffer, SIZE, " Force use for dock %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK]); 1623 result.append(buffer); 1624 snprintf(buffer, SIZE, " Force use for system %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM]); 1625 result.append(buffer); 1626 snprintf(buffer, SIZE, " Force use for hdmi system audio %d\n", 1627 mForceUse[AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO]); 1628 result.append(buffer); 1629 1630 snprintf(buffer, SIZE, " Available output devices:\n"); 1631 result.append(buffer); 1632 write(fd, result.string(), result.size()); 1633 for (size_t i = 0; i < mAvailableOutputDevices.size(); i++) { 1634 mAvailableOutputDevices[i]->dump(fd, 2, i); 1635 } 1636 snprintf(buffer, SIZE, "\n Available input devices:\n"); 1637 write(fd, buffer, strlen(buffer)); 1638 for (size_t i = 0; i < mAvailableInputDevices.size(); i++) { 1639 mAvailableInputDevices[i]->dump(fd, 2, i); 1640 } 1641 1642 snprintf(buffer, SIZE, "\nHW Modules dump:\n"); 1643 write(fd, buffer, strlen(buffer)); 1644 for (size_t i = 0; i < mHwModules.size(); i++) { 1645 snprintf(buffer, SIZE, "- HW Module %zu:\n", i + 1); 1646 write(fd, buffer, strlen(buffer)); 1647 mHwModules[i]->dump(fd); 1648 } 1649 1650 snprintf(buffer, SIZE, "\nOutputs dump:\n"); 1651 write(fd, buffer, strlen(buffer)); 1652 for (size_t i = 0; i < mOutputs.size(); i++) { 1653 snprintf(buffer, SIZE, "- Output %d dump:\n", mOutputs.keyAt(i)); 1654 write(fd, buffer, strlen(buffer)); 1655 mOutputs.valueAt(i)->dump(fd); 1656 } 1657 1658 snprintf(buffer, SIZE, "\nInputs dump:\n"); 1659 write(fd, buffer, strlen(buffer)); 1660 for (size_t i = 0; i < mInputs.size(); i++) { 1661 snprintf(buffer, SIZE, "- Input %d dump:\n", mInputs.keyAt(i)); 1662 write(fd, buffer, strlen(buffer)); 1663 mInputs.valueAt(i)->dump(fd); 1664 } 1665 1666 snprintf(buffer, SIZE, "\nStreams dump:\n"); 1667 write(fd, buffer, strlen(buffer)); 1668 snprintf(buffer, SIZE, 1669 " Stream Can be muted Index Min Index Max Index Cur [device : index]...\n"); 1670 write(fd, buffer, strlen(buffer)); 1671 for (size_t i = 0; i < AUDIO_STREAM_CNT; i++) { 1672 snprintf(buffer, SIZE, " %02zu ", i); 1673 write(fd, buffer, strlen(buffer)); 1674 mStreams[i].dump(fd); 1675 } 1676 1677 snprintf(buffer, SIZE, "\nTotal Effects CPU: %f MIPS, Total Effects memory: %d KB\n", 1678 (float)mTotalEffectsCpuLoad/10, mTotalEffectsMemory); 1679 write(fd, buffer, strlen(buffer)); 1680 1681 snprintf(buffer, SIZE, "Registered effects:\n"); 1682 write(fd, buffer, strlen(buffer)); 1683 for (size_t i = 0; i < mEffects.size(); i++) { 1684 snprintf(buffer, SIZE, "- Effect %d dump:\n", mEffects.keyAt(i)); 1685 write(fd, buffer, strlen(buffer)); 1686 mEffects.valueAt(i)->dump(fd); 1687 } 1688 1689 1690 return NO_ERROR; 1691} 1692 1693// This function checks for the parameters which can be offloaded. 1694// This can be enhanced depending on the capability of the DSP and policy 1695// of the system. 1696bool AudioPolicyManager::isOffloadSupported(const audio_offload_info_t& offloadInfo) 1697{ 1698 ALOGV("isOffloadSupported: SR=%u, CM=0x%x, Format=0x%x, StreamType=%d," 1699 " BitRate=%u, duration=%" PRId64 " us, has_video=%d", 1700 offloadInfo.sample_rate, offloadInfo.channel_mask, 1701 offloadInfo.format, 1702 offloadInfo.stream_type, offloadInfo.bit_rate, offloadInfo.duration_us, 1703 offloadInfo.has_video); 1704 1705 // Check if offload has been disabled 1706 char propValue[PROPERTY_VALUE_MAX]; 1707 if (property_get("audio.offload.disable", propValue, "0")) { 1708 if (atoi(propValue) != 0) { 1709 ALOGV("offload disabled by audio.offload.disable=%s", propValue ); 1710 return false; 1711 } 1712 } 1713 1714 // Check if stream type is music, then only allow offload as of now. 1715 if (offloadInfo.stream_type != AUDIO_STREAM_MUSIC) 1716 { 1717 ALOGV("isOffloadSupported: stream_type != MUSIC, returning false"); 1718 return false; 1719 } 1720 1721 //TODO: enable audio offloading with video when ready 1722 if (offloadInfo.has_video) 1723 { 1724 ALOGV("isOffloadSupported: has_video == true, returning false"); 1725 return false; 1726 } 1727 1728 //If duration is less than minimum value defined in property, return false 1729 if (property_get("audio.offload.min.duration.secs", propValue, NULL)) { 1730 if (offloadInfo.duration_us < (atoi(propValue) * 1000000 )) { 1731 ALOGV("Offload denied by duration < audio.offload.min.duration.secs(=%s)", propValue); 1732 return false; 1733 } 1734 } else if (offloadInfo.duration_us < OFFLOAD_DEFAULT_MIN_DURATION_SECS * 1000000) { 1735 ALOGV("Offload denied by duration < default min(=%u)", OFFLOAD_DEFAULT_MIN_DURATION_SECS); 1736 return false; 1737 } 1738 1739 // Do not allow offloading if one non offloadable effect is enabled. This prevents from 1740 // creating an offloaded track and tearing it down immediately after start when audioflinger 1741 // detects there is an active non offloadable effect. 1742 // FIXME: We should check the audio session here but we do not have it in this context. 1743 // This may prevent offloading in rare situations where effects are left active by apps 1744 // in the background. 1745 if (isNonOffloadableEffectEnabled()) { 1746 return false; 1747 } 1748 1749 // See if there is a profile to support this. 1750 // AUDIO_DEVICE_NONE 1751 sp<IOProfile> profile = getProfileForDirectOutput(AUDIO_DEVICE_NONE /*ignore device */, 1752 offloadInfo.sample_rate, 1753 offloadInfo.format, 1754 offloadInfo.channel_mask, 1755 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD); 1756 ALOGV("isOffloadSupported() profile %sfound", profile != 0 ? "" : "NOT "); 1757 return (profile != 0); 1758} 1759 1760status_t AudioPolicyManager::listAudioPorts(audio_port_role_t role, 1761 audio_port_type_t type, 1762 unsigned int *num_ports, 1763 struct audio_port *ports, 1764 unsigned int *generation) 1765{ 1766 if (num_ports == NULL || (*num_ports != 0 && ports == NULL) || 1767 generation == NULL) { 1768 return BAD_VALUE; 1769 } 1770 ALOGV("listAudioPorts() role %d type %d num_ports %d ports %p", role, type, *num_ports, ports); 1771 if (ports == NULL) { 1772 *num_ports = 0; 1773 } 1774 1775 size_t portsWritten = 0; 1776 size_t portsMax = *num_ports; 1777 *num_ports = 0; 1778 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_DEVICE) { 1779 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 1780 for (size_t i = 0; 1781 i < mAvailableOutputDevices.size() && portsWritten < portsMax; i++) { 1782 mAvailableOutputDevices[i]->toAudioPort(&ports[portsWritten++]); 1783 } 1784 *num_ports += mAvailableOutputDevices.size(); 1785 } 1786 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 1787 for (size_t i = 0; 1788 i < mAvailableInputDevices.size() && portsWritten < portsMax; i++) { 1789 mAvailableInputDevices[i]->toAudioPort(&ports[portsWritten++]); 1790 } 1791 *num_ports += mAvailableInputDevices.size(); 1792 } 1793 } 1794 if (type == AUDIO_PORT_TYPE_NONE || type == AUDIO_PORT_TYPE_MIX) { 1795 if (role == AUDIO_PORT_ROLE_SINK || role == AUDIO_PORT_ROLE_NONE) { 1796 for (size_t i = 0; i < mInputs.size() && portsWritten < portsMax; i++) { 1797 mInputs[i]->toAudioPort(&ports[portsWritten++]); 1798 } 1799 *num_ports += mInputs.size(); 1800 } 1801 if (role == AUDIO_PORT_ROLE_SOURCE || role == AUDIO_PORT_ROLE_NONE) { 1802 size_t numOutputs = 0; 1803 for (size_t i = 0; i < mOutputs.size(); i++) { 1804 if (!mOutputs[i]->isDuplicated()) { 1805 numOutputs++; 1806 if (portsWritten < portsMax) { 1807 mOutputs[i]->toAudioPort(&ports[portsWritten++]); 1808 } 1809 } 1810 } 1811 *num_ports += numOutputs; 1812 } 1813 } 1814 *generation = curAudioPortGeneration(); 1815 ALOGV("listAudioPorts() got %zu ports needed %d", portsWritten, *num_ports); 1816 return NO_ERROR; 1817} 1818 1819status_t AudioPolicyManager::getAudioPort(struct audio_port *port __unused) 1820{ 1821 return NO_ERROR; 1822} 1823 1824sp<AudioPolicyManager::AudioOutputDescriptor> AudioPolicyManager::getOutputFromId( 1825 audio_port_handle_t id) const 1826{ 1827 sp<AudioOutputDescriptor> outputDesc = NULL; 1828 for (size_t i = 0; i < mOutputs.size(); i++) { 1829 outputDesc = mOutputs.valueAt(i); 1830 if (outputDesc->mId == id) { 1831 break; 1832 } 1833 } 1834 return outputDesc; 1835} 1836 1837sp<AudioPolicyManager::AudioInputDescriptor> AudioPolicyManager::getInputFromId( 1838 audio_port_handle_t id) const 1839{ 1840 sp<AudioInputDescriptor> inputDesc = NULL; 1841 for (size_t i = 0; i < mInputs.size(); i++) { 1842 inputDesc = mInputs.valueAt(i); 1843 if (inputDesc->mId == id) { 1844 break; 1845 } 1846 } 1847 return inputDesc; 1848} 1849 1850sp <AudioPolicyManager::HwModule> AudioPolicyManager::getModuleForDevice( 1851 audio_devices_t device) const 1852{ 1853 sp <HwModule> module; 1854 1855 for (size_t i = 0; i < mHwModules.size(); i++) { 1856 if (mHwModules[i]->mHandle == 0) { 1857 continue; 1858 } 1859 if (audio_is_output_device(device)) { 1860 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 1861 { 1862 if (mHwModules[i]->mOutputProfiles[j]->mSupportedDevices.types() & device) { 1863 return mHwModules[i]; 1864 } 1865 } 1866 } else { 1867 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) { 1868 if (mHwModules[i]->mInputProfiles[j]->mSupportedDevices.types() & 1869 device & ~AUDIO_DEVICE_BIT_IN) { 1870 return mHwModules[i]; 1871 } 1872 } 1873 } 1874 } 1875 return module; 1876} 1877 1878sp <AudioPolicyManager::HwModule> AudioPolicyManager::getModuleFromName(const char *name) const 1879{ 1880 sp <HwModule> module; 1881 1882 for (size_t i = 0; i < mHwModules.size(); i++) 1883 { 1884 if (strcmp(mHwModules[i]->mName, name) == 0) { 1885 return mHwModules[i]; 1886 } 1887 } 1888 return module; 1889} 1890 1891 1892status_t AudioPolicyManager::createAudioPatch(const struct audio_patch *patch, 1893 audio_patch_handle_t *handle, 1894 uid_t uid) 1895{ 1896 ALOGV("createAudioPatch()"); 1897 1898 if (handle == NULL || patch == NULL) { 1899 return BAD_VALUE; 1900 } 1901 ALOGV("createAudioPatch() num sources %d num sinks %d", patch->num_sources, patch->num_sinks); 1902 1903 if (patch->num_sources > 1 || patch->num_sinks > 1) { 1904 return INVALID_OPERATION; 1905 } 1906 if (patch->sources[0].role != AUDIO_PORT_ROLE_SOURCE || 1907 patch->sinks[0].role != AUDIO_PORT_ROLE_SINK) { 1908 return INVALID_OPERATION; 1909 } 1910 1911 sp<AudioPatch> patchDesc; 1912 ssize_t index = mAudioPatches.indexOfKey(*handle); 1913 1914 ALOGV("createAudioPatch sink id %d role %d type %d", patch->sinks[0].id, patch->sinks[0].role, 1915 patch->sinks[0].type); 1916 ALOGV("createAudioPatch source id %d role %d type %d", patch->sources[0].id, 1917 patch->sources[0].role, 1918 patch->sources[0].type); 1919 1920 if (index >= 0) { 1921 patchDesc = mAudioPatches.valueAt(index); 1922 ALOGV("createAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 1923 mUidCached, patchDesc->mUid, uid); 1924 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 1925 return INVALID_OPERATION; 1926 } 1927 } else { 1928 *handle = 0; 1929 } 1930 1931 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 1932 // TODO add support for mix to mix connection 1933 if (patch->sinks[0].type != AUDIO_PORT_TYPE_DEVICE) { 1934 ALOGV("createAudioPatch() source mix sink not device"); 1935 return BAD_VALUE; 1936 } 1937 // output mix to output device connection 1938 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(patch->sources[0].id); 1939 if (outputDesc == NULL) { 1940 ALOGV("createAudioPatch() output not found for id %d", patch->sources[0].id); 1941 return BAD_VALUE; 1942 } 1943 ALOG_ASSERT(!outputDesc->isDuplicated(),"duplicated output %d in source in ports", 1944 outputDesc->mIoHandle); 1945 if (patchDesc != 0) { 1946 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id) { 1947 ALOGV("createAudioPatch() source id differs for patch current id %d new id %d", 1948 patchDesc->mPatch.sources[0].id, patch->sources[0].id); 1949 return BAD_VALUE; 1950 } 1951 } 1952 sp<DeviceDescriptor> devDesc = 1953 mAvailableOutputDevices.getDeviceFromId(patch->sinks[0].id); 1954 if (devDesc == 0) { 1955 ALOGV("createAudioPatch() out device not found for id %d", patch->sinks[0].id); 1956 return BAD_VALUE; 1957 } 1958 1959 if (!outputDesc->mProfile->isCompatibleProfile(devDesc->mDeviceType, 1960 patch->sources[0].sample_rate, 1961 NULL, // updatedSamplingRate 1962 patch->sources[0].format, 1963 patch->sources[0].channel_mask, 1964 AUDIO_OUTPUT_FLAG_NONE /*FIXME*/)) { 1965 ALOGV("createAudioPatch() profile not supported"); 1966 return INVALID_OPERATION; 1967 } 1968 // TODO: reconfigure output format and channels here 1969 ALOGV("createAudioPatch() setting device %08x on output %d", 1970 devDesc->mDeviceType, outputDesc->mIoHandle); 1971 setOutputDevice(outputDesc->mIoHandle, 1972 devDesc->mDeviceType, 1973 true, 1974 0, 1975 handle); 1976 index = mAudioPatches.indexOfKey(*handle); 1977 if (index >= 0) { 1978 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 1979 ALOGW("createAudioPatch() setOutputDevice() did not reuse the patch provided"); 1980 } 1981 patchDesc = mAudioPatches.valueAt(index); 1982 patchDesc->mUid = uid; 1983 ALOGV("createAudioPatch() success"); 1984 } else { 1985 ALOGW("createAudioPatch() setOutputDevice() failed to create a patch"); 1986 return INVALID_OPERATION; 1987 } 1988 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 1989 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 1990 // input device to input mix connection 1991 sp<AudioInputDescriptor> inputDesc = getInputFromId(patch->sinks[0].id); 1992 if (inputDesc == NULL) { 1993 return BAD_VALUE; 1994 } 1995 if (patchDesc != 0) { 1996 if (patchDesc->mPatch.sinks[0].id != patch->sinks[0].id) { 1997 return BAD_VALUE; 1998 } 1999 } 2000 sp<DeviceDescriptor> devDesc = 2001 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 2002 if (devDesc == 0) { 2003 return BAD_VALUE; 2004 } 2005 2006 if (!inputDesc->mProfile->isCompatibleProfile(devDesc->mDeviceType, 2007 patch->sinks[0].sample_rate, 2008 NULL, /*updatedSampleRate*/ 2009 patch->sinks[0].format, 2010 patch->sinks[0].channel_mask, 2011 // FIXME for the parameter type, 2012 // and the NONE 2013 (audio_output_flags_t) 2014 AUDIO_INPUT_FLAG_NONE)) { 2015 return INVALID_OPERATION; 2016 } 2017 // TODO: reconfigure output format and channels here 2018 ALOGV("createAudioPatch() setting device %08x on output %d", 2019 devDesc->mDeviceType, inputDesc->mIoHandle); 2020 setInputDevice(inputDesc->mIoHandle, 2021 devDesc->mDeviceType, 2022 true, 2023 handle); 2024 index = mAudioPatches.indexOfKey(*handle); 2025 if (index >= 0) { 2026 if (patchDesc != 0 && patchDesc != mAudioPatches.valueAt(index)) { 2027 ALOGW("createAudioPatch() setInputDevice() did not reuse the patch provided"); 2028 } 2029 patchDesc = mAudioPatches.valueAt(index); 2030 patchDesc->mUid = uid; 2031 ALOGV("createAudioPatch() success"); 2032 } else { 2033 ALOGW("createAudioPatch() setInputDevice() failed to create a patch"); 2034 return INVALID_OPERATION; 2035 } 2036 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2037 // device to device connection 2038 if (patchDesc != 0) { 2039 if (patchDesc->mPatch.sources[0].id != patch->sources[0].id && 2040 patchDesc->mPatch.sinks[0].id != patch->sinks[0].id) { 2041 return BAD_VALUE; 2042 } 2043 } 2044 2045 sp<DeviceDescriptor> srcDeviceDesc = 2046 mAvailableInputDevices.getDeviceFromId(patch->sources[0].id); 2047 sp<DeviceDescriptor> sinkDeviceDesc = 2048 mAvailableOutputDevices.getDeviceFromId(patch->sinks[0].id); 2049 if (srcDeviceDesc == 0 || sinkDeviceDesc == 0) { 2050 return BAD_VALUE; 2051 } 2052 //update source and sink with our own data as the data passed in the patch may 2053 // be incomplete. 2054 struct audio_patch newPatch = *patch; 2055 srcDeviceDesc->toAudioPortConfig(&newPatch.sources[0], &patch->sources[0]); 2056 sinkDeviceDesc->toAudioPortConfig(&newPatch.sinks[0], &patch->sinks[0]); 2057 2058 if (srcDeviceDesc->mModule != sinkDeviceDesc->mModule) { 2059 SortedVector<audio_io_handle_t> outputs = 2060 getOutputsForDevice(sinkDeviceDesc->mDeviceType, mOutputs); 2061 // if the sink device is reachable via an opened output stream, request to go via 2062 // this output stream by adding a second source to the patch description 2063 audio_io_handle_t output = selectOutput(outputs, AUDIO_OUTPUT_FLAG_NONE); 2064 if (output != AUDIO_IO_HANDLE_NONE) { 2065 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 2066 if (outputDesc->isDuplicated()) { 2067 return INVALID_OPERATION; 2068 } 2069 outputDesc->toAudioPortConfig(&newPatch.sources[1], &patch->sources[0]); 2070 newPatch.num_sources = 2; 2071 } 2072 } 2073 // TODO: check from routing capabilities in config file and other conflicting patches 2074 2075 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 2076 if (index >= 0) { 2077 afPatchHandle = patchDesc->mAfPatchHandle; 2078 } 2079 2080 status_t status = mpClientInterface->createAudioPatch(&newPatch, 2081 &afPatchHandle, 2082 0); 2083 ALOGV("createAudioPatch() patch panel returned %d patchHandle %d", 2084 status, afPatchHandle); 2085 if (status == NO_ERROR) { 2086 if (index < 0) { 2087 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 2088 &newPatch, uid); 2089 addAudioPatch(patchDesc->mHandle, patchDesc); 2090 } else { 2091 patchDesc->mPatch = newPatch; 2092 } 2093 patchDesc->mAfPatchHandle = afPatchHandle; 2094 *handle = patchDesc->mHandle; 2095 nextAudioPortGeneration(); 2096 mpClientInterface->onAudioPatchListUpdate(); 2097 } else { 2098 ALOGW("createAudioPatch() patch panel could not connect device patch, error %d", 2099 status); 2100 return INVALID_OPERATION; 2101 } 2102 } else { 2103 return BAD_VALUE; 2104 } 2105 } else { 2106 return BAD_VALUE; 2107 } 2108 return NO_ERROR; 2109} 2110 2111status_t AudioPolicyManager::releaseAudioPatch(audio_patch_handle_t handle, 2112 uid_t uid) 2113{ 2114 ALOGV("releaseAudioPatch() patch %d", handle); 2115 2116 ssize_t index = mAudioPatches.indexOfKey(handle); 2117 2118 if (index < 0) { 2119 return BAD_VALUE; 2120 } 2121 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 2122 ALOGV("releaseAudioPatch() mUidCached %d patchDesc->mUid %d uid %d", 2123 mUidCached, patchDesc->mUid, uid); 2124 if (patchDesc->mUid != mUidCached && uid != patchDesc->mUid) { 2125 return INVALID_OPERATION; 2126 } 2127 2128 struct audio_patch *patch = &patchDesc->mPatch; 2129 patchDesc->mUid = mUidCached; 2130 if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) { 2131 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(patch->sources[0].id); 2132 if (outputDesc == NULL) { 2133 ALOGV("releaseAudioPatch() output not found for id %d", patch->sources[0].id); 2134 return BAD_VALUE; 2135 } 2136 2137 setOutputDevice(outputDesc->mIoHandle, 2138 getNewOutputDevice(outputDesc->mIoHandle, true /*fromCache*/), 2139 true, 2140 0, 2141 NULL); 2142 } else if (patch->sources[0].type == AUDIO_PORT_TYPE_DEVICE) { 2143 if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { 2144 sp<AudioInputDescriptor> inputDesc = getInputFromId(patch->sinks[0].id); 2145 if (inputDesc == NULL) { 2146 ALOGV("releaseAudioPatch() input not found for id %d", patch->sinks[0].id); 2147 return BAD_VALUE; 2148 } 2149 setInputDevice(inputDesc->mIoHandle, 2150 getNewInputDevice(inputDesc->mIoHandle), 2151 true, 2152 NULL); 2153 } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) { 2154 audio_patch_handle_t afPatchHandle = patchDesc->mAfPatchHandle; 2155 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 2156 ALOGV("releaseAudioPatch() patch panel returned %d patchHandle %d", 2157 status, patchDesc->mAfPatchHandle); 2158 removeAudioPatch(patchDesc->mHandle); 2159 nextAudioPortGeneration(); 2160 mpClientInterface->onAudioPatchListUpdate(); 2161 } else { 2162 return BAD_VALUE; 2163 } 2164 } else { 2165 return BAD_VALUE; 2166 } 2167 return NO_ERROR; 2168} 2169 2170status_t AudioPolicyManager::listAudioPatches(unsigned int *num_patches, 2171 struct audio_patch *patches, 2172 unsigned int *generation) 2173{ 2174 if (num_patches == NULL || (*num_patches != 0 && patches == NULL) || 2175 generation == NULL) { 2176 return BAD_VALUE; 2177 } 2178 ALOGV("listAudioPatches() num_patches %d patches %p available patches %zu", 2179 *num_patches, patches, mAudioPatches.size()); 2180 if (patches == NULL) { 2181 *num_patches = 0; 2182 } 2183 2184 size_t patchesWritten = 0; 2185 size_t patchesMax = *num_patches; 2186 for (size_t i = 0; 2187 i < mAudioPatches.size() && patchesWritten < patchesMax; i++) { 2188 patches[patchesWritten] = mAudioPatches[i]->mPatch; 2189 patches[patchesWritten++].id = mAudioPatches[i]->mHandle; 2190 ALOGV("listAudioPatches() patch %zu num_sources %d num_sinks %d", 2191 i, mAudioPatches[i]->mPatch.num_sources, mAudioPatches[i]->mPatch.num_sinks); 2192 } 2193 *num_patches = mAudioPatches.size(); 2194 2195 *generation = curAudioPortGeneration(); 2196 ALOGV("listAudioPatches() got %zu patches needed %d", patchesWritten, *num_patches); 2197 return NO_ERROR; 2198} 2199 2200status_t AudioPolicyManager::setAudioPortConfig(const struct audio_port_config *config) 2201{ 2202 ALOGV("setAudioPortConfig()"); 2203 2204 if (config == NULL) { 2205 return BAD_VALUE; 2206 } 2207 ALOGV("setAudioPortConfig() on port handle %d", config->id); 2208 // Only support gain configuration for now 2209 if (config->config_mask != AUDIO_PORT_CONFIG_GAIN) { 2210 return INVALID_OPERATION; 2211 } 2212 2213 sp<AudioPortConfig> audioPortConfig; 2214 if (config->type == AUDIO_PORT_TYPE_MIX) { 2215 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2216 sp<AudioOutputDescriptor> outputDesc = getOutputFromId(config->id); 2217 if (outputDesc == NULL) { 2218 return BAD_VALUE; 2219 } 2220 ALOG_ASSERT(!outputDesc->isDuplicated(), 2221 "setAudioPortConfig() called on duplicated output %d", 2222 outputDesc->mIoHandle); 2223 audioPortConfig = outputDesc; 2224 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2225 sp<AudioInputDescriptor> inputDesc = getInputFromId(config->id); 2226 if (inputDesc == NULL) { 2227 return BAD_VALUE; 2228 } 2229 audioPortConfig = inputDesc; 2230 } else { 2231 return BAD_VALUE; 2232 } 2233 } else if (config->type == AUDIO_PORT_TYPE_DEVICE) { 2234 sp<DeviceDescriptor> deviceDesc; 2235 if (config->role == AUDIO_PORT_ROLE_SOURCE) { 2236 deviceDesc = mAvailableInputDevices.getDeviceFromId(config->id); 2237 } else if (config->role == AUDIO_PORT_ROLE_SINK) { 2238 deviceDesc = mAvailableOutputDevices.getDeviceFromId(config->id); 2239 } else { 2240 return BAD_VALUE; 2241 } 2242 if (deviceDesc == NULL) { 2243 return BAD_VALUE; 2244 } 2245 audioPortConfig = deviceDesc; 2246 } else { 2247 return BAD_VALUE; 2248 } 2249 2250 struct audio_port_config backupConfig; 2251 status_t status = audioPortConfig->applyAudioPortConfig(config, &backupConfig); 2252 if (status == NO_ERROR) { 2253 struct audio_port_config newConfig; 2254 audioPortConfig->toAudioPortConfig(&newConfig, config); 2255 status = mpClientInterface->setAudioPortConfig(&newConfig, 0); 2256 } 2257 if (status != NO_ERROR) { 2258 audioPortConfig->applyAudioPortConfig(&backupConfig); 2259 } 2260 2261 return status; 2262} 2263 2264void AudioPolicyManager::clearAudioPatches(uid_t uid) 2265{ 2266 for (ssize_t i = 0; i < (ssize_t)mAudioPatches.size(); i++) { 2267 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(i); 2268 if (patchDesc->mUid == uid) { 2269 // releaseAudioPatch() removes the patch from mAudioPatches 2270 if (releaseAudioPatch(mAudioPatches.keyAt(i), uid) == NO_ERROR) { 2271 i--; 2272 } 2273 } 2274 } 2275} 2276 2277status_t AudioPolicyManager::acquireSoundTriggerSession(audio_session_t *session, 2278 audio_io_handle_t *ioHandle, 2279 audio_devices_t *device) 2280{ 2281 *session = (audio_session_t)mpClientInterface->newAudioUniqueId(); 2282 *ioHandle = (audio_io_handle_t)mpClientInterface->newAudioUniqueId(); 2283 *device = getDeviceForInputSource(AUDIO_SOURCE_HOTWORD); 2284 2285 mSoundTriggerSessions.add(*session, *ioHandle); 2286 2287 return NO_ERROR; 2288} 2289 2290status_t AudioPolicyManager::releaseSoundTriggerSession(audio_session_t session) 2291{ 2292 ssize_t index = mSoundTriggerSessions.indexOfKey(session); 2293 if (index < 0) { 2294 ALOGW("acquireSoundTriggerSession() session %d not registered", session); 2295 return BAD_VALUE; 2296 } 2297 2298 mSoundTriggerSessions.removeItem(session); 2299 return NO_ERROR; 2300} 2301 2302status_t AudioPolicyManager::addAudioPatch(audio_patch_handle_t handle, 2303 const sp<AudioPatch>& patch) 2304{ 2305 ssize_t index = mAudioPatches.indexOfKey(handle); 2306 2307 if (index >= 0) { 2308 ALOGW("addAudioPatch() patch %d already in", handle); 2309 return ALREADY_EXISTS; 2310 } 2311 mAudioPatches.add(handle, patch); 2312 ALOGV("addAudioPatch() handle %d af handle %d num_sources %d num_sinks %d source handle %d" 2313 "sink handle %d", 2314 handle, patch->mAfPatchHandle, patch->mPatch.num_sources, patch->mPatch.num_sinks, 2315 patch->mPatch.sources[0].id, patch->mPatch.sinks[0].id); 2316 return NO_ERROR; 2317} 2318 2319status_t AudioPolicyManager::removeAudioPatch(audio_patch_handle_t handle) 2320{ 2321 ssize_t index = mAudioPatches.indexOfKey(handle); 2322 2323 if (index < 0) { 2324 ALOGW("removeAudioPatch() patch %d not in", handle); 2325 return ALREADY_EXISTS; 2326 } 2327 ALOGV("removeAudioPatch() handle %d af handle %d", handle, 2328 mAudioPatches.valueAt(index)->mAfPatchHandle); 2329 mAudioPatches.removeItemsAt(index); 2330 return NO_ERROR; 2331} 2332 2333// ---------------------------------------------------------------------------- 2334// AudioPolicyManager 2335// ---------------------------------------------------------------------------- 2336 2337uint32_t AudioPolicyManager::nextUniqueId() 2338{ 2339 return android_atomic_inc(&mNextUniqueId); 2340} 2341 2342uint32_t AudioPolicyManager::nextAudioPortGeneration() 2343{ 2344 return android_atomic_inc(&mAudioPortGeneration); 2345} 2346 2347AudioPolicyManager::AudioPolicyManager(AudioPolicyClientInterface *clientInterface) 2348 : 2349#ifdef AUDIO_POLICY_TEST 2350 Thread(false), 2351#endif //AUDIO_POLICY_TEST 2352 mPrimaryOutput((audio_io_handle_t)0), 2353 mPhoneState(AUDIO_MODE_NORMAL), 2354 mLimitRingtoneVolume(false), mLastVoiceVolume(-1.0f), 2355 mTotalEffectsCpuLoad(0), mTotalEffectsMemory(0), 2356 mA2dpSuspended(false), 2357 mSpeakerDrcEnabled(false), mNextUniqueId(1), 2358 mAudioPortGeneration(1) 2359{ 2360 mUidCached = getuid(); 2361 mpClientInterface = clientInterface; 2362 2363 for (int i = 0; i < AUDIO_POLICY_FORCE_USE_CNT; i++) { 2364 mForceUse[i] = AUDIO_POLICY_FORCE_NONE; 2365 } 2366 2367 mDefaultOutputDevice = new DeviceDescriptor(String8(""), AUDIO_DEVICE_OUT_SPEAKER); 2368 if (loadAudioPolicyConfig(AUDIO_POLICY_VENDOR_CONFIG_FILE) != NO_ERROR) { 2369 if (loadAudioPolicyConfig(AUDIO_POLICY_CONFIG_FILE) != NO_ERROR) { 2370 ALOGE("could not load audio policy configuration file, setting defaults"); 2371 defaultAudioPolicyConfig(); 2372 } 2373 } 2374 // mAvailableOutputDevices and mAvailableInputDevices now contain all attached devices 2375 2376 // must be done after reading the policy 2377 initializeVolumeCurves(); 2378 2379 // open all output streams needed to access attached devices 2380 audio_devices_t outputDeviceTypes = mAvailableOutputDevices.types(); 2381 audio_devices_t inputDeviceTypes = mAvailableInputDevices.types() & ~AUDIO_DEVICE_BIT_IN; 2382 for (size_t i = 0; i < mHwModules.size(); i++) { 2383 mHwModules[i]->mHandle = mpClientInterface->loadHwModule(mHwModules[i]->mName); 2384 if (mHwModules[i]->mHandle == 0) { 2385 ALOGW("could not open HW module %s", mHwModules[i]->mName); 2386 continue; 2387 } 2388 // open all output streams needed to access attached devices 2389 // except for direct output streams that are only opened when they are actually 2390 // required by an app. 2391 // This also validates mAvailableOutputDevices list 2392 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 2393 { 2394 const sp<IOProfile> outProfile = mHwModules[i]->mOutputProfiles[j]; 2395 2396 if (outProfile->mSupportedDevices.isEmpty()) { 2397 ALOGW("Output profile contains no device on module %s", mHwModules[i]->mName); 2398 continue; 2399 } 2400 2401 audio_devices_t profileType = outProfile->mSupportedDevices.types(); 2402 if ((profileType & mDefaultOutputDevice->mDeviceType) != AUDIO_DEVICE_NONE) { 2403 profileType = mDefaultOutputDevice->mDeviceType; 2404 } else { 2405 profileType = outProfile->mSupportedDevices[0]->mDeviceType; 2406 } 2407 if ((profileType & outputDeviceTypes) && 2408 ((outProfile->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) == 0)) { 2409 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(outProfile); 2410 2411 outputDesc->mDevice = profileType; 2412 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 2413 config.sample_rate = outputDesc->mSamplingRate; 2414 config.channel_mask = outputDesc->mChannelMask; 2415 config.format = outputDesc->mFormat; 2416 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 2417 status_t status = mpClientInterface->openOutput(outProfile->mModule->mHandle, 2418 &output, 2419 &config, 2420 &outputDesc->mDevice, 2421 String8(""), 2422 &outputDesc->mLatency, 2423 outputDesc->mFlags); 2424 2425 if (status != NO_ERROR) { 2426 ALOGW("Cannot open output stream for device %08x on hw module %s", 2427 outputDesc->mDevice, 2428 mHwModules[i]->mName); 2429 } else { 2430 outputDesc->mSamplingRate = config.sample_rate; 2431 outputDesc->mChannelMask = config.channel_mask; 2432 outputDesc->mFormat = config.format; 2433 2434 for (size_t k = 0; k < outProfile->mSupportedDevices.size(); k++) { 2435 audio_devices_t type = outProfile->mSupportedDevices[k]->mDeviceType; 2436 ssize_t index = 2437 mAvailableOutputDevices.indexOf(outProfile->mSupportedDevices[k]); 2438 // give a valid ID to an attached device once confirmed it is reachable 2439 if ((index >= 0) && (mAvailableOutputDevices[index]->mId == 0)) { 2440 mAvailableOutputDevices[index]->mId = nextUniqueId(); 2441 mAvailableOutputDevices[index]->mModule = mHwModules[i]; 2442 } 2443 } 2444 if (mPrimaryOutput == 0 && 2445 outProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) { 2446 mPrimaryOutput = output; 2447 } 2448 addOutput(output, outputDesc); 2449 setOutputDevice(output, 2450 outputDesc->mDevice, 2451 true); 2452 } 2453 } 2454 } 2455 // open input streams needed to access attached devices to validate 2456 // mAvailableInputDevices list 2457 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 2458 { 2459 const sp<IOProfile> inProfile = mHwModules[i]->mInputProfiles[j]; 2460 2461 if (inProfile->mSupportedDevices.isEmpty()) { 2462 ALOGW("Input profile contains no device on module %s", mHwModules[i]->mName); 2463 continue; 2464 } 2465 2466 audio_devices_t profileType = inProfile->mSupportedDevices[0]->mDeviceType; 2467 if (profileType & inputDeviceTypes) { 2468 sp<AudioInputDescriptor> inputDesc = new AudioInputDescriptor(inProfile); 2469 2470 inputDesc->mInputSource = AUDIO_SOURCE_MIC; 2471 inputDesc->mDevice = profileType; 2472 2473 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 2474 config.sample_rate = inputDesc->mSamplingRate; 2475 config.channel_mask = inputDesc->mChannelMask; 2476 config.format = inputDesc->mFormat; 2477 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 2478 status_t status = mpClientInterface->openInput(inProfile->mModule->mHandle, 2479 &input, 2480 &config, 2481 &inputDesc->mDevice, 2482 String8(""), 2483 AUDIO_SOURCE_MIC, 2484 AUDIO_INPUT_FLAG_NONE); 2485 2486 if (status == NO_ERROR) { 2487 for (size_t k = 0; k < inProfile->mSupportedDevices.size(); k++) { 2488 audio_devices_t type = inProfile->mSupportedDevices[k]->mDeviceType; 2489 ssize_t index = 2490 mAvailableInputDevices.indexOf(inProfile->mSupportedDevices[k]); 2491 // give a valid ID to an attached device once confirmed it is reachable 2492 if ((index >= 0) && (mAvailableInputDevices[index]->mId == 0)) { 2493 mAvailableInputDevices[index]->mId = nextUniqueId(); 2494 mAvailableInputDevices[index]->mModule = mHwModules[i]; 2495 } 2496 } 2497 mpClientInterface->closeInput(input); 2498 } else { 2499 ALOGW("Cannot open input stream for device %08x on hw module %s", 2500 inputDesc->mDevice, 2501 mHwModules[i]->mName); 2502 } 2503 } 2504 } 2505 } 2506 // make sure all attached devices have been allocated a unique ID 2507 for (size_t i = 0; i < mAvailableOutputDevices.size();) { 2508 if (mAvailableOutputDevices[i]->mId == 0) { 2509 ALOGW("Input device %08x unreachable", mAvailableOutputDevices[i]->mDeviceType); 2510 mAvailableOutputDevices.remove(mAvailableOutputDevices[i]); 2511 continue; 2512 } 2513 i++; 2514 } 2515 for (size_t i = 0; i < mAvailableInputDevices.size();) { 2516 if (mAvailableInputDevices[i]->mId == 0) { 2517 ALOGW("Input device %08x unreachable", mAvailableInputDevices[i]->mDeviceType); 2518 mAvailableInputDevices.remove(mAvailableInputDevices[i]); 2519 continue; 2520 } 2521 i++; 2522 } 2523 // make sure default device is reachable 2524 if (mAvailableOutputDevices.indexOf(mDefaultOutputDevice) < 0) { 2525 ALOGE("Default device %08x is unreachable", mDefaultOutputDevice->mDeviceType); 2526 } 2527 2528 ALOGE_IF((mPrimaryOutput == 0), "Failed to open primary output"); 2529 2530 updateDevicesAndOutputs(); 2531 2532#ifdef AUDIO_POLICY_TEST 2533 if (mPrimaryOutput != 0) { 2534 AudioParameter outputCmd = AudioParameter(); 2535 outputCmd.addInt(String8("set_id"), 0); 2536 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 2537 2538 mTestDevice = AUDIO_DEVICE_OUT_SPEAKER; 2539 mTestSamplingRate = 44100; 2540 mTestFormat = AUDIO_FORMAT_PCM_16_BIT; 2541 mTestChannels = AUDIO_CHANNEL_OUT_STEREO; 2542 mTestLatencyMs = 0; 2543 mCurOutput = 0; 2544 mDirectOutput = false; 2545 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 2546 mTestOutputs[i] = 0; 2547 } 2548 2549 const size_t SIZE = 256; 2550 char buffer[SIZE]; 2551 snprintf(buffer, SIZE, "AudioPolicyManagerTest"); 2552 run(buffer, ANDROID_PRIORITY_AUDIO); 2553 } 2554#endif //AUDIO_POLICY_TEST 2555} 2556 2557AudioPolicyManager::~AudioPolicyManager() 2558{ 2559#ifdef AUDIO_POLICY_TEST 2560 exit(); 2561#endif //AUDIO_POLICY_TEST 2562 for (size_t i = 0; i < mOutputs.size(); i++) { 2563 mpClientInterface->closeOutput(mOutputs.keyAt(i)); 2564 } 2565 for (size_t i = 0; i < mInputs.size(); i++) { 2566 mpClientInterface->closeInput(mInputs.keyAt(i)); 2567 } 2568 mAvailableOutputDevices.clear(); 2569 mAvailableInputDevices.clear(); 2570 mOutputs.clear(); 2571 mInputs.clear(); 2572 mHwModules.clear(); 2573} 2574 2575status_t AudioPolicyManager::initCheck() 2576{ 2577 return (mPrimaryOutput == 0) ? NO_INIT : NO_ERROR; 2578} 2579 2580#ifdef AUDIO_POLICY_TEST 2581bool AudioPolicyManager::threadLoop() 2582{ 2583 ALOGV("entering threadLoop()"); 2584 while (!exitPending()) 2585 { 2586 String8 command; 2587 int valueInt; 2588 String8 value; 2589 2590 Mutex::Autolock _l(mLock); 2591 mWaitWorkCV.waitRelative(mLock, milliseconds(50)); 2592 2593 command = mpClientInterface->getParameters(0, String8("test_cmd_policy")); 2594 AudioParameter param = AudioParameter(command); 2595 2596 if (param.getInt(String8("test_cmd_policy"), valueInt) == NO_ERROR && 2597 valueInt != 0) { 2598 ALOGV("Test command %s received", command.string()); 2599 String8 target; 2600 if (param.get(String8("target"), target) != NO_ERROR) { 2601 target = "Manager"; 2602 } 2603 if (param.getInt(String8("test_cmd_policy_output"), valueInt) == NO_ERROR) { 2604 param.remove(String8("test_cmd_policy_output")); 2605 mCurOutput = valueInt; 2606 } 2607 if (param.get(String8("test_cmd_policy_direct"), value) == NO_ERROR) { 2608 param.remove(String8("test_cmd_policy_direct")); 2609 if (value == "false") { 2610 mDirectOutput = false; 2611 } else if (value == "true") { 2612 mDirectOutput = true; 2613 } 2614 } 2615 if (param.getInt(String8("test_cmd_policy_input"), valueInt) == NO_ERROR) { 2616 param.remove(String8("test_cmd_policy_input")); 2617 mTestInput = valueInt; 2618 } 2619 2620 if (param.get(String8("test_cmd_policy_format"), value) == NO_ERROR) { 2621 param.remove(String8("test_cmd_policy_format")); 2622 int format = AUDIO_FORMAT_INVALID; 2623 if (value == "PCM 16 bits") { 2624 format = AUDIO_FORMAT_PCM_16_BIT; 2625 } else if (value == "PCM 8 bits") { 2626 format = AUDIO_FORMAT_PCM_8_BIT; 2627 } else if (value == "Compressed MP3") { 2628 format = AUDIO_FORMAT_MP3; 2629 } 2630 if (format != AUDIO_FORMAT_INVALID) { 2631 if (target == "Manager") { 2632 mTestFormat = format; 2633 } else if (mTestOutputs[mCurOutput] != 0) { 2634 AudioParameter outputParam = AudioParameter(); 2635 outputParam.addInt(String8("format"), format); 2636 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 2637 } 2638 } 2639 } 2640 if (param.get(String8("test_cmd_policy_channels"), value) == NO_ERROR) { 2641 param.remove(String8("test_cmd_policy_channels")); 2642 int channels = 0; 2643 2644 if (value == "Channels Stereo") { 2645 channels = AUDIO_CHANNEL_OUT_STEREO; 2646 } else if (value == "Channels Mono") { 2647 channels = AUDIO_CHANNEL_OUT_MONO; 2648 } 2649 if (channels != 0) { 2650 if (target == "Manager") { 2651 mTestChannels = channels; 2652 } else if (mTestOutputs[mCurOutput] != 0) { 2653 AudioParameter outputParam = AudioParameter(); 2654 outputParam.addInt(String8("channels"), channels); 2655 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 2656 } 2657 } 2658 } 2659 if (param.getInt(String8("test_cmd_policy_sampleRate"), valueInt) == NO_ERROR) { 2660 param.remove(String8("test_cmd_policy_sampleRate")); 2661 if (valueInt >= 0 && valueInt <= 96000) { 2662 int samplingRate = valueInt; 2663 if (target == "Manager") { 2664 mTestSamplingRate = samplingRate; 2665 } else if (mTestOutputs[mCurOutput] != 0) { 2666 AudioParameter outputParam = AudioParameter(); 2667 outputParam.addInt(String8("sampling_rate"), samplingRate); 2668 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString()); 2669 } 2670 } 2671 } 2672 2673 if (param.get(String8("test_cmd_policy_reopen"), value) == NO_ERROR) { 2674 param.remove(String8("test_cmd_policy_reopen")); 2675 2676 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 2677 mpClientInterface->closeOutput(mPrimaryOutput); 2678 2679 audio_module_handle_t moduleHandle = outputDesc->mModule->mHandle; 2680 2681 mOutputs.removeItem(mPrimaryOutput); 2682 2683 sp<AudioOutputDescriptor> outputDesc = new AudioOutputDescriptor(NULL); 2684 outputDesc->mDevice = AUDIO_DEVICE_OUT_SPEAKER; 2685 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 2686 config.sample_rate = outputDesc->mSamplingRate; 2687 config.channel_mask = outputDesc->mChannelMask; 2688 config.format = outputDesc->mFormat; 2689 status_t status = mpClientInterface->openOutput(moduleHandle, 2690 &mPrimaryOutput, 2691 &config, 2692 &outputDesc->mDevice, 2693 String8(""), 2694 &outputDesc->mLatency, 2695 outputDesc->mFlags); 2696 if (status != NO_ERROR) { 2697 ALOGE("Failed to reopen hardware output stream, " 2698 "samplingRate: %d, format %d, channels %d", 2699 outputDesc->mSamplingRate, outputDesc->mFormat, outputDesc->mChannelMask); 2700 } else { 2701 outputDesc->mSamplingRate = config.sample_rate; 2702 outputDesc->mChannelMask = config.channel_mask; 2703 outputDesc->mFormat = config.format; 2704 AudioParameter outputCmd = AudioParameter(); 2705 outputCmd.addInt(String8("set_id"), 0); 2706 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString()); 2707 addOutput(mPrimaryOutput, outputDesc); 2708 } 2709 } 2710 2711 2712 mpClientInterface->setParameters(0, String8("test_cmd_policy=")); 2713 } 2714 } 2715 return false; 2716} 2717 2718void AudioPolicyManager::exit() 2719{ 2720 { 2721 AutoMutex _l(mLock); 2722 requestExit(); 2723 mWaitWorkCV.signal(); 2724 } 2725 requestExitAndWait(); 2726} 2727 2728int AudioPolicyManager::testOutputIndex(audio_io_handle_t output) 2729{ 2730 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) { 2731 if (output == mTestOutputs[i]) return i; 2732 } 2733 return 0; 2734} 2735#endif //AUDIO_POLICY_TEST 2736 2737// --- 2738 2739void AudioPolicyManager::addOutput(audio_io_handle_t output, sp<AudioOutputDescriptor> outputDesc) 2740{ 2741 outputDesc->mIoHandle = output; 2742 outputDesc->mId = nextUniqueId(); 2743 mOutputs.add(output, outputDesc); 2744 nextAudioPortGeneration(); 2745} 2746 2747void AudioPolicyManager::addInput(audio_io_handle_t input, sp<AudioInputDescriptor> inputDesc) 2748{ 2749 inputDesc->mIoHandle = input; 2750 inputDesc->mId = nextUniqueId(); 2751 mInputs.add(input, inputDesc); 2752 nextAudioPortGeneration(); 2753} 2754 2755void AudioPolicyManager::findIoHandlesByAddress(sp<AudioOutputDescriptor> desc /*in*/, 2756 const String8 address /*in*/, 2757 SortedVector<audio_io_handle_t>& outputs /*out*/) { 2758 // look for a match on the given address on the addresses of the outputs: 2759 // find the address by finding the patch that maps to this output 2760 ssize_t patchIdx = mAudioPatches.indexOfKey(desc->mPatchHandle); 2761 //ALOGV(" inspecting output %d (patch %d) for supported device=0x%x", 2762 // outputIdx, patchIdx, desc->mProfile->mSupportedDevices.types()); 2763 if (patchIdx >= 0) { 2764 const sp<AudioPatch> patchDesc = mAudioPatches.valueAt(patchIdx); 2765 const int numSinks = patchDesc->mPatch.num_sinks; 2766 for (ssize_t j=0; j < numSinks; j++) { 2767 if (patchDesc->mPatch.sinks[j].type == AUDIO_PORT_TYPE_DEVICE) { 2768 const char* patchAddr = 2769 patchDesc->mPatch.sinks[j].ext.device.address; 2770 if (strncmp(patchAddr, 2771 address.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN) == 0) { 2772 ALOGV("checkOutputsForDevice(): adding opened output %d on same address %s", 2773 desc->mIoHandle, patchDesc->mPatch.sinks[j].ext.device.address); 2774 outputs.add(desc->mIoHandle); 2775 break; 2776 } 2777 } 2778 } 2779 } 2780} 2781 2782status_t AudioPolicyManager::checkOutputsForDevice(audio_devices_t device, 2783 audio_policy_dev_state_t state, 2784 SortedVector<audio_io_handle_t>& outputs, 2785 const String8 address) 2786{ 2787 sp<AudioOutputDescriptor> desc; 2788 2789 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 2790 // first list already open outputs that can be routed to this device 2791 for (size_t i = 0; i < mOutputs.size(); i++) { 2792 desc = mOutputs.valueAt(i); 2793 if (!desc->isDuplicated() && (desc->mProfile->mSupportedDevices.types() & device)) { 2794 if (!deviceDistinguishesOnAddress(device)) { 2795 ALOGV("checkOutputsForDevice(): adding opened output %d", mOutputs.keyAt(i)); 2796 outputs.add(mOutputs.keyAt(i)); 2797 } else { 2798 ALOGV(" checking address match due to device 0x%x", device); 2799 findIoHandlesByAddress(desc, address, outputs); 2800 } 2801 } 2802 } 2803 // then look for output profiles that can be routed to this device 2804 SortedVector< sp<IOProfile> > profiles; 2805 for (size_t i = 0; i < mHwModules.size(); i++) 2806 { 2807 if (mHwModules[i]->mHandle == 0) { 2808 continue; 2809 } 2810 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 2811 { 2812 if (mHwModules[i]->mOutputProfiles[j]->mSupportedDevices.types() & device) { 2813 ALOGV("checkOutputsForDevice(): adding profile %zu from module %zu", j, i); 2814 profiles.add(mHwModules[i]->mOutputProfiles[j]); 2815 } 2816 } 2817 } 2818 2819 ALOGV(" found %d profiles, %d outputs", profiles.size(), outputs.size()); 2820 2821 if (profiles.isEmpty() && outputs.isEmpty()) { 2822 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 2823 return BAD_VALUE; 2824 } 2825 2826 // open outputs for matching profiles if needed. Direct outputs are also opened to 2827 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 2828 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 2829 sp<IOProfile> profile = profiles[profile_index]; 2830 2831 // nothing to do if one output is already opened for this profile 2832 size_t j; 2833 for (j = 0; j < outputs.size(); j++) { 2834 desc = mOutputs.valueFor(outputs.itemAt(j)); 2835 if (!desc->isDuplicated() && desc->mProfile == profile) { 2836 break; 2837 } 2838 } 2839 if (j != outputs.size()) { 2840 continue; 2841 } 2842 2843 ALOGV("opening output for device %08x with params %s profile %p", 2844 device, address.string(), profile.get()); 2845 desc = new AudioOutputDescriptor(profile); 2846 desc->mDevice = device; 2847 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 2848 config.sample_rate = desc->mSamplingRate; 2849 config.channel_mask = desc->mChannelMask; 2850 config.format = desc->mFormat; 2851 config.offload_info.sample_rate = desc->mSamplingRate; 2852 config.offload_info.channel_mask = desc->mChannelMask; 2853 config.offload_info.format = desc->mFormat; 2854 audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; 2855 status_t status = mpClientInterface->openOutput(profile->mModule->mHandle, 2856 &output, 2857 &config, 2858 &desc->mDevice, 2859 address, 2860 &desc->mLatency, 2861 desc->mFlags); 2862 if (status == NO_ERROR) { 2863 desc->mSamplingRate = config.sample_rate; 2864 desc->mChannelMask = config.channel_mask; 2865 desc->mFormat = config.format; 2866 2867 // Here is where the out_set_parameters() for card & device gets called 2868 if (!address.isEmpty()) { 2869 char *param = audio_device_address_to_parameter(device, address); 2870 mpClientInterface->setParameters(output, String8(param)); 2871 free(param); 2872 } 2873 2874 // Here is where we step through and resolve any "dynamic" fields 2875 String8 reply; 2876 char *value; 2877 if (profile->mSamplingRates[0] == 0) { 2878 reply = mpClientInterface->getParameters(output, 2879 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 2880 ALOGV("checkOutputsForDevice() supported sampling rates %s", 2881 reply.string()); 2882 value = strpbrk((char *)reply.string(), "="); 2883 if (value != NULL) { 2884 profile->loadSamplingRates(value + 1); 2885 } 2886 } 2887 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 2888 reply = mpClientInterface->getParameters(output, 2889 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 2890 ALOGV("checkOutputsForDevice() supported formats %s", 2891 reply.string()); 2892 value = strpbrk((char *)reply.string(), "="); 2893 if (value != NULL) { 2894 profile->loadFormats(value + 1); 2895 } 2896 } 2897 if (profile->mChannelMasks[0] == 0) { 2898 reply = mpClientInterface->getParameters(output, 2899 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 2900 ALOGV("checkOutputsForDevice() supported channel masks %s", 2901 reply.string()); 2902 value = strpbrk((char *)reply.string(), "="); 2903 if (value != NULL) { 2904 profile->loadOutChannels(value + 1); 2905 } 2906 } 2907 if (((profile->mSamplingRates[0] == 0) && 2908 (profile->mSamplingRates.size() < 2)) || 2909 ((profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) && 2910 (profile->mFormats.size() < 2)) || 2911 ((profile->mChannelMasks[0] == 0) && 2912 (profile->mChannelMasks.size() < 2))) { 2913 ALOGW("checkOutputsForDevice() missing param"); 2914 mpClientInterface->closeOutput(output); 2915 output = AUDIO_IO_HANDLE_NONE; 2916 } else if (profile->mSamplingRates[0] == 0 || profile->mFormats[0] == 0 || 2917 profile->mChannelMasks[0] == 0) { 2918 mpClientInterface->closeOutput(output); 2919 config.sample_rate = profile->pickSamplingRate(); 2920 config.channel_mask = profile->pickChannelMask(); 2921 config.format = profile->pickFormat(); 2922 config.offload_info.sample_rate = config.sample_rate; 2923 config.offload_info.channel_mask = config.channel_mask; 2924 config.offload_info.format = config.format; 2925 status = mpClientInterface->openOutput(profile->mModule->mHandle, 2926 &output, 2927 &config, 2928 &desc->mDevice, 2929 address, 2930 &desc->mLatency, 2931 desc->mFlags); 2932 if (status == NO_ERROR) { 2933 desc->mSamplingRate = config.sample_rate; 2934 desc->mChannelMask = config.channel_mask; 2935 desc->mFormat = config.format; 2936 } else { 2937 output = AUDIO_IO_HANDLE_NONE; 2938 } 2939 } 2940 2941 if (output != AUDIO_IO_HANDLE_NONE) { 2942 addOutput(output, desc); 2943 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) { 2944 audio_io_handle_t duplicatedOutput = AUDIO_IO_HANDLE_NONE; 2945 2946 // set initial stream volume for device 2947 applyStreamVolumes(output, device, 0, true); 2948 2949 //TODO: configure audio effect output stage here 2950 2951 // open a duplicating output thread for the new output and the primary output 2952 duplicatedOutput = mpClientInterface->openDuplicateOutput(output, 2953 mPrimaryOutput); 2954 if (duplicatedOutput != AUDIO_IO_HANDLE_NONE) { 2955 // add duplicated output descriptor 2956 sp<AudioOutputDescriptor> dupOutputDesc = 2957 new AudioOutputDescriptor(NULL); 2958 dupOutputDesc->mOutput1 = mOutputs.valueFor(mPrimaryOutput); 2959 dupOutputDesc->mOutput2 = mOutputs.valueFor(output); 2960 dupOutputDesc->mSamplingRate = desc->mSamplingRate; 2961 dupOutputDesc->mFormat = desc->mFormat; 2962 dupOutputDesc->mChannelMask = desc->mChannelMask; 2963 dupOutputDesc->mLatency = desc->mLatency; 2964 addOutput(duplicatedOutput, dupOutputDesc); 2965 applyStreamVolumes(duplicatedOutput, device, 0, true); 2966 } else { 2967 ALOGW("checkOutputsForDevice() could not open dup output for %d and %d", 2968 mPrimaryOutput, output); 2969 mpClientInterface->closeOutput(output); 2970 mOutputs.removeItem(output); 2971 nextAudioPortGeneration(); 2972 output = AUDIO_IO_HANDLE_NONE; 2973 } 2974 } 2975 } 2976 } else { 2977 output = AUDIO_IO_HANDLE_NONE; 2978 } 2979 if (output == AUDIO_IO_HANDLE_NONE) { 2980 ALOGW("checkOutputsForDevice() could not open output for device %x", device); 2981 profiles.removeAt(profile_index); 2982 profile_index--; 2983 } else { 2984 outputs.add(output); 2985 if (deviceDistinguishesOnAddress(device)) { 2986 ALOGV("checkOutputsForDevice(): setOutputDevice(dev=0x%x, addr=%s)", 2987 device, address.string()); 2988 setOutputDevice(output, device, true/*force*/, 0/*delay*/, 2989 NULL/*patch handle*/, address.string()); 2990 } 2991 ALOGV("checkOutputsForDevice(): adding output %d", output); 2992 } 2993 } 2994 2995 if (profiles.isEmpty()) { 2996 ALOGW("checkOutputsForDevice(): No output available for device %04x", device); 2997 return BAD_VALUE; 2998 } 2999 } else { // Disconnect 3000 // check if one opened output is not needed any more after disconnecting one device 3001 for (size_t i = 0; i < mOutputs.size(); i++) { 3002 desc = mOutputs.valueAt(i); 3003 if (!desc->isDuplicated()) { 3004 if (!(desc->mProfile->mSupportedDevices.types() 3005 & mAvailableOutputDevices.types())) { 3006 ALOGV("checkOutputsForDevice(): disconnecting adding output %d", 3007 mOutputs.keyAt(i)); 3008 outputs.add(mOutputs.keyAt(i)); 3009 } else if (deviceDistinguishesOnAddress(device) && 3010 // exact match on device 3011 (desc->mProfile->mSupportedDevices.types() == device)) { 3012 findIoHandlesByAddress(desc, address, outputs); 3013 } 3014 } 3015 } 3016 // Clear any profiles associated with the disconnected device. 3017 for (size_t i = 0; i < mHwModules.size(); i++) 3018 { 3019 if (mHwModules[i]->mHandle == 0) { 3020 continue; 3021 } 3022 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) 3023 { 3024 sp<IOProfile> profile = mHwModules[i]->mOutputProfiles[j]; 3025 if (profile->mSupportedDevices.types() & device) { 3026 ALOGV("checkOutputsForDevice(): " 3027 "clearing direct output profile %zu on module %zu", j, i); 3028 if (profile->mSamplingRates[0] == 0) { 3029 profile->mSamplingRates.clear(); 3030 profile->mSamplingRates.add(0); 3031 } 3032 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3033 profile->mFormats.clear(); 3034 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 3035 } 3036 if (profile->mChannelMasks[0] == 0) { 3037 profile->mChannelMasks.clear(); 3038 profile->mChannelMasks.add(0); 3039 } 3040 } 3041 } 3042 } 3043 } 3044 return NO_ERROR; 3045} 3046 3047status_t AudioPolicyManager::checkInputsForDevice(audio_devices_t device, 3048 audio_policy_dev_state_t state, 3049 SortedVector<audio_io_handle_t>& inputs, 3050 const String8 address) 3051{ 3052 sp<AudioInputDescriptor> desc; 3053 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) { 3054 // first list already open inputs that can be routed to this device 3055 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 3056 desc = mInputs.valueAt(input_index); 3057 if (desc->mProfile->mSupportedDevices.types() & (device & ~AUDIO_DEVICE_BIT_IN)) { 3058 ALOGV("checkInputsForDevice(): adding opened input %d", mInputs.keyAt(input_index)); 3059 inputs.add(mInputs.keyAt(input_index)); 3060 } 3061 } 3062 3063 // then look for input profiles that can be routed to this device 3064 SortedVector< sp<IOProfile> > profiles; 3065 for (size_t module_idx = 0; module_idx < mHwModules.size(); module_idx++) 3066 { 3067 if (mHwModules[module_idx]->mHandle == 0) { 3068 continue; 3069 } 3070 for (size_t profile_index = 0; 3071 profile_index < mHwModules[module_idx]->mInputProfiles.size(); 3072 profile_index++) 3073 { 3074 if (mHwModules[module_idx]->mInputProfiles[profile_index]->mSupportedDevices.types() 3075 & (device & ~AUDIO_DEVICE_BIT_IN)) { 3076 ALOGV("checkInputsForDevice(): adding profile %zu from module %zu", 3077 profile_index, module_idx); 3078 profiles.add(mHwModules[module_idx]->mInputProfiles[profile_index]); 3079 } 3080 } 3081 } 3082 3083 if (profiles.isEmpty() && inputs.isEmpty()) { 3084 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 3085 return BAD_VALUE; 3086 } 3087 3088 // open inputs for matching profiles if needed. Direct inputs are also opened to 3089 // query for dynamic parameters and will be closed later by setDeviceConnectionState() 3090 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) { 3091 3092 sp<IOProfile> profile = profiles[profile_index]; 3093 // nothing to do if one input is already opened for this profile 3094 size_t input_index; 3095 for (input_index = 0; input_index < mInputs.size(); input_index++) { 3096 desc = mInputs.valueAt(input_index); 3097 if (desc->mProfile == profile) { 3098 break; 3099 } 3100 } 3101 if (input_index != mInputs.size()) { 3102 continue; 3103 } 3104 3105 ALOGV("opening input for device 0x%X with params %s", device, address.string()); 3106 desc = new AudioInputDescriptor(profile); 3107 desc->mDevice = device; 3108 audio_config_t config = AUDIO_CONFIG_INITIALIZER; 3109 config.sample_rate = desc->mSamplingRate; 3110 config.channel_mask = desc->mChannelMask; 3111 config.format = desc->mFormat; 3112 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; 3113 status_t status = mpClientInterface->openInput(profile->mModule->mHandle, 3114 &input, 3115 &config, 3116 &desc->mDevice, 3117 address, 3118 AUDIO_SOURCE_MIC, 3119 AUDIO_INPUT_FLAG_NONE /*FIXME*/); 3120 3121 if (status == NO_ERROR) { 3122 desc->mSamplingRate = config.sample_rate; 3123 desc->mChannelMask = config.channel_mask; 3124 desc->mFormat = config.format; 3125 3126 if (!address.isEmpty()) { 3127 char *param = audio_device_address_to_parameter(device, address); 3128 mpClientInterface->setParameters(input, String8(param)); 3129 free(param); 3130 } 3131 3132 // Here is where we step through and resolve any "dynamic" fields 3133 String8 reply; 3134 char *value; 3135 if (profile->mSamplingRates[0] == 0) { 3136 reply = mpClientInterface->getParameters(input, 3137 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)); 3138 ALOGV("checkInputsForDevice() direct input sup sampling rates %s", 3139 reply.string()); 3140 value = strpbrk((char *)reply.string(), "="); 3141 if (value != NULL) { 3142 profile->loadSamplingRates(value + 1); 3143 } 3144 } 3145 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3146 reply = mpClientInterface->getParameters(input, 3147 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS)); 3148 ALOGV("checkInputsForDevice() direct input sup formats %s", reply.string()); 3149 value = strpbrk((char *)reply.string(), "="); 3150 if (value != NULL) { 3151 profile->loadFormats(value + 1); 3152 } 3153 } 3154 if (profile->mChannelMasks[0] == 0) { 3155 reply = mpClientInterface->getParameters(input, 3156 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS)); 3157 ALOGV("checkInputsForDevice() direct input sup channel masks %s", 3158 reply.string()); 3159 value = strpbrk((char *)reply.string(), "="); 3160 if (value != NULL) { 3161 profile->loadInChannels(value + 1); 3162 } 3163 } 3164 if (((profile->mSamplingRates[0] == 0) && (profile->mSamplingRates.size() < 2)) || 3165 ((profile->mFormats[0] == 0) && (profile->mFormats.size() < 2)) || 3166 ((profile->mChannelMasks[0] == 0) && (profile->mChannelMasks.size() < 2))) { 3167 ALOGW("checkInputsForDevice() direct input missing param"); 3168 mpClientInterface->closeInput(input); 3169 input = AUDIO_IO_HANDLE_NONE; 3170 } 3171 3172 if (input != 0) { 3173 addInput(input, desc); 3174 } 3175 } // endif input != 0 3176 3177 if (input == AUDIO_IO_HANDLE_NONE) { 3178 ALOGW("checkInputsForDevice() could not open input for device 0x%X", device); 3179 profiles.removeAt(profile_index); 3180 profile_index--; 3181 } else { 3182 inputs.add(input); 3183 ALOGV("checkInputsForDevice(): adding input %d", input); 3184 } 3185 } // end scan profiles 3186 3187 if (profiles.isEmpty()) { 3188 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device); 3189 return BAD_VALUE; 3190 } 3191 } else { 3192 // Disconnect 3193 // check if one opened input is not needed any more after disconnecting one device 3194 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) { 3195 desc = mInputs.valueAt(input_index); 3196 if (!(desc->mProfile->mSupportedDevices.types() & mAvailableInputDevices.types())) { 3197 ALOGV("checkInputsForDevice(): disconnecting adding input %d", 3198 mInputs.keyAt(input_index)); 3199 inputs.add(mInputs.keyAt(input_index)); 3200 } 3201 } 3202 // Clear any profiles associated with the disconnected device. 3203 for (size_t module_index = 0; module_index < mHwModules.size(); module_index++) { 3204 if (mHwModules[module_index]->mHandle == 0) { 3205 continue; 3206 } 3207 for (size_t profile_index = 0; 3208 profile_index < mHwModules[module_index]->mInputProfiles.size(); 3209 profile_index++) { 3210 sp<IOProfile> profile = mHwModules[module_index]->mInputProfiles[profile_index]; 3211 if (profile->mSupportedDevices.types() & device) { 3212 ALOGV("checkInputsForDevice(): clearing direct input profile %zu on module %zu", 3213 profile_index, module_index); 3214 if (profile->mSamplingRates[0] == 0) { 3215 profile->mSamplingRates.clear(); 3216 profile->mSamplingRates.add(0); 3217 } 3218 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) { 3219 profile->mFormats.clear(); 3220 profile->mFormats.add(AUDIO_FORMAT_DEFAULT); 3221 } 3222 if (profile->mChannelMasks[0] == 0) { 3223 profile->mChannelMasks.clear(); 3224 profile->mChannelMasks.add(0); 3225 } 3226 } 3227 } 3228 } 3229 } // end disconnect 3230 3231 return NO_ERROR; 3232} 3233 3234 3235void AudioPolicyManager::closeOutput(audio_io_handle_t output) 3236{ 3237 ALOGV("closeOutput(%d)", output); 3238 3239 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 3240 if (outputDesc == NULL) { 3241 ALOGW("closeOutput() unknown output %d", output); 3242 return; 3243 } 3244 3245 // look for duplicated outputs connected to the output being removed. 3246 for (size_t i = 0; i < mOutputs.size(); i++) { 3247 sp<AudioOutputDescriptor> dupOutputDesc = mOutputs.valueAt(i); 3248 if (dupOutputDesc->isDuplicated() && 3249 (dupOutputDesc->mOutput1 == outputDesc || 3250 dupOutputDesc->mOutput2 == outputDesc)) { 3251 sp<AudioOutputDescriptor> outputDesc2; 3252 if (dupOutputDesc->mOutput1 == outputDesc) { 3253 outputDesc2 = dupOutputDesc->mOutput2; 3254 } else { 3255 outputDesc2 = dupOutputDesc->mOutput1; 3256 } 3257 // As all active tracks on duplicated output will be deleted, 3258 // and as they were also referenced on the other output, the reference 3259 // count for their stream type must be adjusted accordingly on 3260 // the other output. 3261 for (int j = 0; j < AUDIO_STREAM_CNT; j++) { 3262 int refCount = dupOutputDesc->mRefCount[j]; 3263 outputDesc2->changeRefCount((audio_stream_type_t)j,-refCount); 3264 } 3265 audio_io_handle_t duplicatedOutput = mOutputs.keyAt(i); 3266 ALOGV("closeOutput() closing also duplicated output %d", duplicatedOutput); 3267 3268 mpClientInterface->closeOutput(duplicatedOutput); 3269 mOutputs.removeItem(duplicatedOutput); 3270 } 3271 } 3272 3273 AudioParameter param; 3274 param.add(String8("closing"), String8("true")); 3275 mpClientInterface->setParameters(output, param.toString()); 3276 3277 mpClientInterface->closeOutput(output); 3278 mOutputs.removeItem(output); 3279 mPreviousOutputs = mOutputs; 3280 nextAudioPortGeneration(); 3281} 3282 3283SortedVector<audio_io_handle_t> AudioPolicyManager::getOutputsForDevice(audio_devices_t device, 3284 DefaultKeyedVector<audio_io_handle_t, sp<AudioOutputDescriptor> > openOutputs) 3285{ 3286 SortedVector<audio_io_handle_t> outputs; 3287 3288 ALOGVV("getOutputsForDevice() device %04x", device); 3289 for (size_t i = 0; i < openOutputs.size(); i++) { 3290 ALOGVV("output %d isDuplicated=%d device=%04x", 3291 i, openOutputs.valueAt(i)->isDuplicated(), openOutputs.valueAt(i)->supportedDevices()); 3292 if ((device & openOutputs.valueAt(i)->supportedDevices()) == device) { 3293 ALOGVV("getOutputsForDevice() found output %d", openOutputs.keyAt(i)); 3294 outputs.add(openOutputs.keyAt(i)); 3295 } 3296 } 3297 return outputs; 3298} 3299 3300bool AudioPolicyManager::vectorsEqual(SortedVector<audio_io_handle_t>& outputs1, 3301 SortedVector<audio_io_handle_t>& outputs2) 3302{ 3303 if (outputs1.size() != outputs2.size()) { 3304 return false; 3305 } 3306 for (size_t i = 0; i < outputs1.size(); i++) { 3307 if (outputs1[i] != outputs2[i]) { 3308 return false; 3309 } 3310 } 3311 return true; 3312} 3313 3314void AudioPolicyManager::checkOutputForStrategy(routing_strategy strategy) 3315{ 3316 audio_devices_t oldDevice = getDeviceForStrategy(strategy, true /*fromCache*/); 3317 audio_devices_t newDevice = getDeviceForStrategy(strategy, false /*fromCache*/); 3318 SortedVector<audio_io_handle_t> srcOutputs = getOutputsForDevice(oldDevice, mPreviousOutputs); 3319 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(newDevice, mOutputs); 3320 3321 if (!vectorsEqual(srcOutputs,dstOutputs)) { 3322 ALOGV("checkOutputForStrategy() strategy %d, moving from output %d to output %d", 3323 strategy, srcOutputs[0], dstOutputs[0]); 3324 // mute strategy while moving tracks from one output to another 3325 for (size_t i = 0; i < srcOutputs.size(); i++) { 3326 sp<AudioOutputDescriptor> desc = mOutputs.valueFor(srcOutputs[i]); 3327 if (desc->isStrategyActive(strategy)) { 3328 setStrategyMute(strategy, true, srcOutputs[i]); 3329 setStrategyMute(strategy, false, srcOutputs[i], MUTE_TIME_MS, newDevice); 3330 } 3331 } 3332 3333 // Move effects associated to this strategy from previous output to new output 3334 if (strategy == STRATEGY_MEDIA) { 3335 audio_io_handle_t fxOutput = selectOutputForEffects(dstOutputs); 3336 SortedVector<audio_io_handle_t> moved; 3337 for (size_t i = 0; i < mEffects.size(); i++) { 3338 sp<EffectDescriptor> effectDesc = mEffects.valueAt(i); 3339 if (effectDesc->mSession == AUDIO_SESSION_OUTPUT_MIX && 3340 effectDesc->mIo != fxOutput) { 3341 if (moved.indexOf(effectDesc->mIo) < 0) { 3342 ALOGV("checkOutputForStrategy() moving effect %d to output %d", 3343 mEffects.keyAt(i), fxOutput); 3344 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, effectDesc->mIo, 3345 fxOutput); 3346 moved.add(effectDesc->mIo); 3347 } 3348 effectDesc->mIo = fxOutput; 3349 } 3350 } 3351 } 3352 // Move tracks associated to this strategy from previous output to new output 3353 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 3354 if (getStrategy((audio_stream_type_t)i) == strategy) { 3355 mpClientInterface->invalidateStream((audio_stream_type_t)i); 3356 } 3357 } 3358 } 3359} 3360 3361void AudioPolicyManager::checkOutputForAllStrategies() 3362{ 3363 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE); 3364 checkOutputForStrategy(STRATEGY_PHONE); 3365 checkOutputForStrategy(STRATEGY_SONIFICATION); 3366 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 3367 checkOutputForStrategy(STRATEGY_MEDIA); 3368 checkOutputForStrategy(STRATEGY_DTMF); 3369} 3370 3371audio_io_handle_t AudioPolicyManager::getA2dpOutput() 3372{ 3373 for (size_t i = 0; i < mOutputs.size(); i++) { 3374 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueAt(i); 3375 if (!outputDesc->isDuplicated() && outputDesc->device() & AUDIO_DEVICE_OUT_ALL_A2DP) { 3376 return mOutputs.keyAt(i); 3377 } 3378 } 3379 3380 return 0; 3381} 3382 3383void AudioPolicyManager::checkA2dpSuspend() 3384{ 3385 audio_io_handle_t a2dpOutput = getA2dpOutput(); 3386 if (a2dpOutput == 0) { 3387 mA2dpSuspended = false; 3388 return; 3389 } 3390 3391 bool isScoConnected = 3392 (mAvailableInputDevices.types() & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) != 0; 3393 // suspend A2DP output if: 3394 // (NOT already suspended) && 3395 // ((SCO device is connected && 3396 // (forced usage for communication || for record is SCO))) || 3397 // (phone state is ringing || in call) 3398 // 3399 // restore A2DP output if: 3400 // (Already suspended) && 3401 // ((SCO device is NOT connected || 3402 // (forced usage NOT for communication && NOT for record is SCO))) && 3403 // (phone state is NOT ringing && NOT in call) 3404 // 3405 if (mA2dpSuspended) { 3406 if ((!isScoConnected || 3407 ((mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] != AUDIO_POLICY_FORCE_BT_SCO) && 3408 (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] != AUDIO_POLICY_FORCE_BT_SCO))) && 3409 ((mPhoneState != AUDIO_MODE_IN_CALL) && 3410 (mPhoneState != AUDIO_MODE_RINGTONE))) { 3411 3412 mpClientInterface->restoreOutput(a2dpOutput); 3413 mA2dpSuspended = false; 3414 } 3415 } else { 3416 if ((isScoConnected && 3417 ((mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO) || 3418 (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO))) || 3419 ((mPhoneState == AUDIO_MODE_IN_CALL) || 3420 (mPhoneState == AUDIO_MODE_RINGTONE))) { 3421 3422 mpClientInterface->suspendOutput(a2dpOutput); 3423 mA2dpSuspended = true; 3424 } 3425 } 3426} 3427 3428audio_devices_t AudioPolicyManager::getNewOutputDevice(audio_io_handle_t output, bool fromCache) 3429{ 3430 audio_devices_t device = AUDIO_DEVICE_NONE; 3431 3432 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 3433 3434 ssize_t index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3435 if (index >= 0) { 3436 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3437 if (patchDesc->mUid != mUidCached) { 3438 ALOGV("getNewOutputDevice() device %08x forced by patch %d", 3439 outputDesc->device(), outputDesc->mPatchHandle); 3440 return outputDesc->device(); 3441 } 3442 } 3443 3444 // check the following by order of priority to request a routing change if necessary: 3445 // 1: the strategy enforced audible is active on the output: 3446 // use device for strategy enforced audible 3447 // 2: we are in call or the strategy phone is active on the output: 3448 // use device for strategy phone 3449 // 3: the strategy sonification is active on the output: 3450 // use device for strategy sonification 3451 // 4: the strategy "respectful" sonification is active on the output: 3452 // use device for strategy "respectful" sonification 3453 // 5: the strategy media is active on the output: 3454 // use device for strategy media 3455 // 6: the strategy DTMF is active on the output: 3456 // use device for strategy DTMF 3457 if (outputDesc->isStrategyActive(STRATEGY_ENFORCED_AUDIBLE)) { 3458 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache); 3459 } else if (isInCall() || 3460 outputDesc->isStrategyActive(STRATEGY_PHONE)) { 3461 device = getDeviceForStrategy(STRATEGY_PHONE, fromCache); 3462 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION)) { 3463 device = getDeviceForStrategy(STRATEGY_SONIFICATION, fromCache); 3464 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION_RESPECTFUL)) { 3465 device = getDeviceForStrategy(STRATEGY_SONIFICATION_RESPECTFUL, fromCache); 3466 } else if (outputDesc->isStrategyActive(STRATEGY_MEDIA)) { 3467 device = getDeviceForStrategy(STRATEGY_MEDIA, fromCache); 3468 } else if (outputDesc->isStrategyActive(STRATEGY_DTMF)) { 3469 device = getDeviceForStrategy(STRATEGY_DTMF, fromCache); 3470 } 3471 3472 ALOGV("getNewOutputDevice() selected device %x", device); 3473 return device; 3474} 3475 3476audio_devices_t AudioPolicyManager::getNewInputDevice(audio_io_handle_t input) 3477{ 3478 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 3479 3480 ssize_t index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 3481 if (index >= 0) { 3482 sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index); 3483 if (patchDesc->mUid != mUidCached) { 3484 ALOGV("getNewInputDevice() device %08x forced by patch %d", 3485 inputDesc->mDevice, inputDesc->mPatchHandle); 3486 return inputDesc->mDevice; 3487 } 3488 } 3489 3490 audio_devices_t device = getDeviceForInputSource(inputDesc->mInputSource); 3491 3492 ALOGV("getNewInputDevice() selected device %x", device); 3493 return device; 3494} 3495 3496uint32_t AudioPolicyManager::getStrategyForStream(audio_stream_type_t stream) { 3497 return (uint32_t)getStrategy(stream); 3498} 3499 3500audio_devices_t AudioPolicyManager::getDevicesForStream(audio_stream_type_t stream) { 3501 // By checking the range of stream before calling getStrategy, we avoid 3502 // getStrategy's behavior for invalid streams. getStrategy would do a ALOGE 3503 // and then return STRATEGY_MEDIA, but we want to return the empty set. 3504 if (stream < (audio_stream_type_t) 0 || stream >= AUDIO_STREAM_CNT) { 3505 return AUDIO_DEVICE_NONE; 3506 } 3507 audio_devices_t devices; 3508 AudioPolicyManager::routing_strategy strategy = getStrategy(stream); 3509 devices = getDeviceForStrategy(strategy, true /*fromCache*/); 3510 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(devices, mOutputs); 3511 for (size_t i = 0; i < outputs.size(); i++) { 3512 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(outputs[i]); 3513 if (outputDesc->isStrategyActive(strategy)) { 3514 devices = outputDesc->device(); 3515 break; 3516 } 3517 } 3518 return devices; 3519} 3520 3521AudioPolicyManager::routing_strategy AudioPolicyManager::getStrategy( 3522 audio_stream_type_t stream) { 3523 // stream to strategy mapping 3524 switch (stream) { 3525 case AUDIO_STREAM_VOICE_CALL: 3526 case AUDIO_STREAM_BLUETOOTH_SCO: 3527 return STRATEGY_PHONE; 3528 case AUDIO_STREAM_RING: 3529 case AUDIO_STREAM_ALARM: 3530 return STRATEGY_SONIFICATION; 3531 case AUDIO_STREAM_NOTIFICATION: 3532 return STRATEGY_SONIFICATION_RESPECTFUL; 3533 case AUDIO_STREAM_DTMF: 3534 return STRATEGY_DTMF; 3535 default: 3536 ALOGE("unknown stream type"); 3537 case AUDIO_STREAM_SYSTEM: 3538 // NOTE: SYSTEM stream uses MEDIA strategy because muting music and switching outputs 3539 // while key clicks are played produces a poor result 3540 case AUDIO_STREAM_TTS: 3541 case AUDIO_STREAM_MUSIC: 3542 return STRATEGY_MEDIA; 3543 case AUDIO_STREAM_ENFORCED_AUDIBLE: 3544 return STRATEGY_ENFORCED_AUDIBLE; 3545 } 3546} 3547 3548uint32_t AudioPolicyManager::getStrategyForAttr(const audio_attributes_t *attr) { 3549 // flags to strategy mapping 3550 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 3551 return (uint32_t) STRATEGY_ENFORCED_AUDIBLE; 3552 } 3553 3554 // usage to strategy mapping 3555 switch (attr->usage) { 3556 case AUDIO_USAGE_MEDIA: 3557 case AUDIO_USAGE_GAME: 3558 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 3559 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 3560 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 3561 return (uint32_t) STRATEGY_MEDIA; 3562 3563 case AUDIO_USAGE_VOICE_COMMUNICATION: 3564 return (uint32_t) STRATEGY_PHONE; 3565 3566 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 3567 return (uint32_t) STRATEGY_DTMF; 3568 3569 case AUDIO_USAGE_ALARM: 3570 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 3571 return (uint32_t) STRATEGY_SONIFICATION; 3572 3573 case AUDIO_USAGE_NOTIFICATION: 3574 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 3575 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 3576 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 3577 case AUDIO_USAGE_NOTIFICATION_EVENT: 3578 return (uint32_t) STRATEGY_SONIFICATION_RESPECTFUL; 3579 3580 case AUDIO_USAGE_UNKNOWN: 3581 default: 3582 return (uint32_t) STRATEGY_MEDIA; 3583 } 3584} 3585 3586void AudioPolicyManager::handleNotificationRoutingForStream(audio_stream_type_t stream) { 3587 switch(stream) { 3588 case AUDIO_STREAM_MUSIC: 3589 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL); 3590 updateDevicesAndOutputs(); 3591 break; 3592 default: 3593 break; 3594 } 3595} 3596 3597audio_devices_t AudioPolicyManager::getDeviceForStrategy(routing_strategy strategy, 3598 bool fromCache) 3599{ 3600 uint32_t device = AUDIO_DEVICE_NONE; 3601 3602 if (fromCache) { 3603 ALOGVV("getDeviceForStrategy() from cache strategy %d, device %x", 3604 strategy, mDeviceForStrategy[strategy]); 3605 return mDeviceForStrategy[strategy]; 3606 } 3607 audio_devices_t availableOutputDeviceTypes = mAvailableOutputDevices.types(); 3608 switch (strategy) { 3609 3610 case STRATEGY_SONIFICATION_RESPECTFUL: 3611 if (isInCall()) { 3612 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 3613 } else if (isStreamActiveRemotely(AUDIO_STREAM_MUSIC, 3614 SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { 3615 // while media is playing on a remote device, use the the sonification behavior. 3616 // Note that we test this usecase before testing if media is playing because 3617 // the isStreamActive() method only informs about the activity of a stream, not 3618 // if it's for local playback. Note also that we use the same delay between both tests 3619 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 3620 } else if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { 3621 // while media is playing (or has recently played), use the same device 3622 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); 3623 } else { 3624 // when media is not playing anymore, fall back on the sonification behavior 3625 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); 3626 } 3627 3628 break; 3629 3630 case STRATEGY_DTMF: 3631 if (!isInCall()) { 3632 // when off call, DTMF strategy follows the same rules as MEDIA strategy 3633 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); 3634 break; 3635 } 3636 // when in call, DTMF and PHONE strategies follow the same rules 3637 // FALL THROUGH 3638 3639 case STRATEGY_PHONE: 3640 // for phone strategy, we first consider the forced use and then the available devices by order 3641 // of priority 3642 switch (mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]) { 3643 case AUDIO_POLICY_FORCE_BT_SCO: 3644 if (!isInCall() || strategy != STRATEGY_DTMF) { 3645 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT; 3646 if (device) break; 3647 } 3648 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET; 3649 if (device) break; 3650 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO; 3651 if (device) break; 3652 // if SCO device is requested but no SCO device is available, fall back to default case 3653 // FALL THROUGH 3654 3655 default: // FORCE_NONE 3656 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to A2DP 3657 if (!isInCall() && 3658 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 3659 (getA2dpOutput() != 0) && !mA2dpSuspended) { 3660 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; 3661 if (device) break; 3662 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; 3663 if (device) break; 3664 } 3665 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; 3666 if (device) break; 3667 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADSET; 3668 if (device) break; 3669 if (mPhoneState != AUDIO_MODE_IN_CALL) { 3670 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 3671 if (device) break; 3672 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 3673 if (device) break; 3674 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 3675 if (device) break; 3676 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 3677 if (device) break; 3678 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 3679 if (device) break; 3680 } 3681 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_EARPIECE; 3682 if (device) break; 3683 device = mDefaultOutputDevice->mDeviceType; 3684 if (device == AUDIO_DEVICE_NONE) { 3685 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE"); 3686 } 3687 break; 3688 3689 case AUDIO_POLICY_FORCE_SPEAKER: 3690 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to 3691 // A2DP speaker when forcing to speaker output 3692 if (!isInCall() && 3693 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 3694 (getA2dpOutput() != 0) && !mA2dpSuspended) { 3695 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; 3696 if (device) break; 3697 } 3698 if (mPhoneState != AUDIO_MODE_IN_CALL) { 3699 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 3700 if (device) break; 3701 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 3702 if (device) break; 3703 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 3704 if (device) break; 3705 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 3706 if (device) break; 3707 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 3708 if (device) break; 3709 } 3710 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_LINE; 3711 if (device) break; 3712 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 3713 if (device) break; 3714 device = mDefaultOutputDevice->mDeviceType; 3715 if (device == AUDIO_DEVICE_NONE) { 3716 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE, FORCE_SPEAKER"); 3717 } 3718 break; 3719 } 3720 break; 3721 3722 case STRATEGY_SONIFICATION: 3723 3724 // If incall, just select the STRATEGY_PHONE device: The rest of the behavior is handled by 3725 // handleIncallSonification(). 3726 if (isInCall()) { 3727 device = getDeviceForStrategy(STRATEGY_PHONE, false /*fromCache*/); 3728 break; 3729 } 3730 // FALL THROUGH 3731 3732 case STRATEGY_ENFORCED_AUDIBLE: 3733 // strategy STRATEGY_ENFORCED_AUDIBLE uses same routing policy as STRATEGY_SONIFICATION 3734 // except: 3735 // - when in call where it doesn't default to STRATEGY_PHONE behavior 3736 // - in countries where not enforced in which case it follows STRATEGY_MEDIA 3737 3738 if ((strategy == STRATEGY_SONIFICATION) || 3739 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED)) { 3740 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 3741 if (device == AUDIO_DEVICE_NONE) { 3742 ALOGE("getDeviceForStrategy() speaker device not found for STRATEGY_SONIFICATION"); 3743 } 3744 } 3745 // The second device used for sonification is the same as the device used by media strategy 3746 // FALL THROUGH 3747 3748 case STRATEGY_MEDIA: { 3749 uint32_t device2 = AUDIO_DEVICE_NONE; 3750 if (strategy != STRATEGY_SONIFICATION) { 3751 // no sonification on remote submix (e.g. WFD) 3752 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_REMOTE_SUBMIX; 3753 } 3754 if ((device2 == AUDIO_DEVICE_NONE) && 3755 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && 3756 (getA2dpOutput() != 0) && !mA2dpSuspended) { 3757 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; 3758 if (device2 == AUDIO_DEVICE_NONE) { 3759 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; 3760 } 3761 if (device2 == AUDIO_DEVICE_NONE) { 3762 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; 3763 } 3764 } 3765 if (device2 == AUDIO_DEVICE_NONE) { 3766 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; 3767 } 3768 if ((device2 == AUDIO_DEVICE_NONE)) { 3769 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_LINE; 3770 } 3771 if (device2 == AUDIO_DEVICE_NONE) { 3772 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADSET; 3773 } 3774 if (device2 == AUDIO_DEVICE_NONE) { 3775 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY; 3776 } 3777 if (device2 == AUDIO_DEVICE_NONE) { 3778 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE; 3779 } 3780 if (device2 == AUDIO_DEVICE_NONE) { 3781 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; 3782 } 3783 if ((device2 == AUDIO_DEVICE_NONE) && (strategy != STRATEGY_SONIFICATION)) { 3784 // no sonification on aux digital (e.g. HDMI) 3785 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL; 3786 } 3787 if ((device2 == AUDIO_DEVICE_NONE) && 3788 (mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK] == AUDIO_POLICY_FORCE_ANALOG_DOCK)) { 3789 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; 3790 } 3791 if (device2 == AUDIO_DEVICE_NONE) { 3792 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER; 3793 } 3794 int device3 = AUDIO_DEVICE_NONE; 3795 if (strategy == STRATEGY_MEDIA) { 3796 // ARC, SPDIF and AUX_LINE can co-exist with others. 3797 device3 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_HDMI_ARC; 3798 device3 |= (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPDIF); 3799 device3 |= (availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_LINE); 3800 } 3801 3802 device2 |= device3; 3803 // device is DEVICE_OUT_SPEAKER if we come from case STRATEGY_SONIFICATION or 3804 // STRATEGY_ENFORCED_AUDIBLE, AUDIO_DEVICE_NONE otherwise 3805 device |= device2; 3806 3807 // If hdmi system audio mode is on, remove speaker out of output list. 3808 if ((strategy == STRATEGY_MEDIA) && 3809 (mForceUse[AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO] == 3810 AUDIO_POLICY_FORCE_HDMI_SYSTEM_AUDIO_ENFORCED)) { 3811 device &= ~AUDIO_DEVICE_OUT_SPEAKER; 3812 } 3813 3814 if (device) break; 3815 device = mDefaultOutputDevice->mDeviceType; 3816 if (device == AUDIO_DEVICE_NONE) { 3817 ALOGE("getDeviceForStrategy() no device found for STRATEGY_MEDIA"); 3818 } 3819 } break; 3820 3821 default: 3822 ALOGW("getDeviceForStrategy() unknown strategy: %d", strategy); 3823 break; 3824 } 3825 3826 ALOGVV("getDeviceForStrategy() strategy %d, device %x", strategy, device); 3827 return device; 3828} 3829 3830void AudioPolicyManager::updateDevicesAndOutputs() 3831{ 3832 for (int i = 0; i < NUM_STRATEGIES; i++) { 3833 mDeviceForStrategy[i] = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 3834 } 3835 mPreviousOutputs = mOutputs; 3836} 3837 3838uint32_t AudioPolicyManager::checkDeviceMuteStrategies(sp<AudioOutputDescriptor> outputDesc, 3839 audio_devices_t prevDevice, 3840 uint32_t delayMs) 3841{ 3842 // mute/unmute strategies using an incompatible device combination 3843 // if muting, wait for the audio in pcm buffer to be drained before proceeding 3844 // if unmuting, unmute only after the specified delay 3845 if (outputDesc->isDuplicated()) { 3846 return 0; 3847 } 3848 3849 uint32_t muteWaitMs = 0; 3850 audio_devices_t device = outputDesc->device(); 3851 bool shouldMute = outputDesc->isActive() && (popcount(device) >= 2); 3852 3853 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 3854 audio_devices_t curDevice = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/); 3855 bool mute = shouldMute && (curDevice & device) && (curDevice != device); 3856 bool doMute = false; 3857 3858 if (mute && !outputDesc->mStrategyMutedByDevice[i]) { 3859 doMute = true; 3860 outputDesc->mStrategyMutedByDevice[i] = true; 3861 } else if (!mute && outputDesc->mStrategyMutedByDevice[i]){ 3862 doMute = true; 3863 outputDesc->mStrategyMutedByDevice[i] = false; 3864 } 3865 if (doMute) { 3866 for (size_t j = 0; j < mOutputs.size(); j++) { 3867 sp<AudioOutputDescriptor> desc = mOutputs.valueAt(j); 3868 // skip output if it does not share any device with current output 3869 if ((desc->supportedDevices() & outputDesc->supportedDevices()) 3870 == AUDIO_DEVICE_NONE) { 3871 continue; 3872 } 3873 audio_io_handle_t curOutput = mOutputs.keyAt(j); 3874 ALOGVV("checkDeviceMuteStrategies() %s strategy %d (curDevice %04x) on output %d", 3875 mute ? "muting" : "unmuting", i, curDevice, curOutput); 3876 setStrategyMute((routing_strategy)i, mute, curOutput, mute ? 0 : delayMs); 3877 if (desc->isStrategyActive((routing_strategy)i)) { 3878 if (mute) { 3879 // FIXME: should not need to double latency if volume could be applied 3880 // immediately by the audioflinger mixer. We must account for the delay 3881 // between now and the next time the audioflinger thread for this output 3882 // will process a buffer (which corresponds to one buffer size, 3883 // usually 1/2 or 1/4 of the latency). 3884 if (muteWaitMs < desc->latency() * 2) { 3885 muteWaitMs = desc->latency() * 2; 3886 } 3887 } 3888 } 3889 } 3890 } 3891 } 3892 3893 // temporary mute output if device selection changes to avoid volume bursts due to 3894 // different per device volumes 3895 if (outputDesc->isActive() && (device != prevDevice)) { 3896 if (muteWaitMs < outputDesc->latency() * 2) { 3897 muteWaitMs = outputDesc->latency() * 2; 3898 } 3899 for (size_t i = 0; i < NUM_STRATEGIES; i++) { 3900 if (outputDesc->isStrategyActive((routing_strategy)i)) { 3901 setStrategyMute((routing_strategy)i, true, outputDesc->mIoHandle); 3902 // do tempMute unmute after twice the mute wait time 3903 setStrategyMute((routing_strategy)i, false, outputDesc->mIoHandle, 3904 muteWaitMs *2, device); 3905 } 3906 } 3907 } 3908 3909 // wait for the PCM output buffers to empty before proceeding with the rest of the command 3910 if (muteWaitMs > delayMs) { 3911 muteWaitMs -= delayMs; 3912 usleep(muteWaitMs * 1000); 3913 return muteWaitMs; 3914 } 3915 return 0; 3916} 3917 3918uint32_t AudioPolicyManager::setOutputDevice(audio_io_handle_t output, 3919 audio_devices_t device, 3920 bool force, 3921 int delayMs, 3922 audio_patch_handle_t *patchHandle, 3923 const char* address) 3924{ 3925 ALOGV("setOutputDevice() output %d device %04x delayMs %d", output, device, delayMs); 3926 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 3927 AudioParameter param; 3928 uint32_t muteWaitMs; 3929 3930 if (outputDesc->isDuplicated()) { 3931 muteWaitMs = setOutputDevice(outputDesc->mOutput1->mIoHandle, device, force, delayMs); 3932 muteWaitMs += setOutputDevice(outputDesc->mOutput2->mIoHandle, device, force, delayMs); 3933 return muteWaitMs; 3934 } 3935 // no need to proceed if new device is not AUDIO_DEVICE_NONE and not supported by current 3936 // output profile 3937 if ((device != AUDIO_DEVICE_NONE) && 3938 ((device & outputDesc->mProfile->mSupportedDevices.types()) == 0)) { 3939 return 0; 3940 } 3941 3942 // filter devices according to output selected 3943 device = (audio_devices_t)(device & outputDesc->mProfile->mSupportedDevices.types()); 3944 3945 audio_devices_t prevDevice = outputDesc->mDevice; 3946 3947 ALOGV("setOutputDevice() prevDevice %04x", prevDevice); 3948 3949 if (device != AUDIO_DEVICE_NONE) { 3950 outputDesc->mDevice = device; 3951 } 3952 muteWaitMs = checkDeviceMuteStrategies(outputDesc, prevDevice, delayMs); 3953 3954 // Do not change the routing if: 3955 // - the requested device is AUDIO_DEVICE_NONE 3956 // - the requested device is the same as current device and force is not specified. 3957 // Doing this check here allows the caller to call setOutputDevice() without conditions 3958 if ((device == AUDIO_DEVICE_NONE || device == prevDevice) && !force) { 3959 ALOGV("setOutputDevice() setting same device %04x or null device for output %d", device, output); 3960 return muteWaitMs; 3961 } 3962 3963 ALOGV("setOutputDevice() changing device"); 3964 3965 // do the routing 3966 if (device == AUDIO_DEVICE_NONE) { 3967 resetOutputDevice(output, delayMs, NULL); 3968 } else { 3969 DeviceVector deviceList = (address == NULL) ? 3970 mAvailableOutputDevices.getDevicesFromType(device) 3971 : mAvailableOutputDevices.getDevicesFromTypeAddr(device, String8(address)); 3972 if (!deviceList.isEmpty()) { 3973 struct audio_patch patch; 3974 outputDesc->toAudioPortConfig(&patch.sources[0]); 3975 patch.num_sources = 1; 3976 patch.num_sinks = 0; 3977 for (size_t i = 0; i < deviceList.size() && i < AUDIO_PATCH_PORTS_MAX; i++) { 3978 deviceList.itemAt(i)->toAudioPortConfig(&patch.sinks[i]); 3979 patch.num_sinks++; 3980 } 3981 ssize_t index; 3982 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 3983 index = mAudioPatches.indexOfKey(*patchHandle); 3984 } else { 3985 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 3986 } 3987 sp< AudioPatch> patchDesc; 3988 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 3989 if (index >= 0) { 3990 patchDesc = mAudioPatches.valueAt(index); 3991 afPatchHandle = patchDesc->mAfPatchHandle; 3992 } 3993 3994 status_t status = mpClientInterface->createAudioPatch(&patch, 3995 &afPatchHandle, 3996 delayMs); 3997 ALOGV("setOutputDevice() createAudioPatch returned %d patchHandle %d" 3998 "num_sources %d num_sinks %d", 3999 status, afPatchHandle, patch.num_sources, patch.num_sinks); 4000 if (status == NO_ERROR) { 4001 if (index < 0) { 4002 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 4003 &patch, mUidCached); 4004 addAudioPatch(patchDesc->mHandle, patchDesc); 4005 } else { 4006 patchDesc->mPatch = patch; 4007 } 4008 patchDesc->mAfPatchHandle = afPatchHandle; 4009 patchDesc->mUid = mUidCached; 4010 if (patchHandle) { 4011 *patchHandle = patchDesc->mHandle; 4012 } 4013 outputDesc->mPatchHandle = patchDesc->mHandle; 4014 nextAudioPortGeneration(); 4015 mpClientInterface->onAudioPatchListUpdate(); 4016 } 4017 } 4018 } 4019 4020 // update stream volumes according to new device 4021 applyStreamVolumes(output, device, delayMs); 4022 4023 return muteWaitMs; 4024} 4025 4026status_t AudioPolicyManager::resetOutputDevice(audio_io_handle_t output, 4027 int delayMs, 4028 audio_patch_handle_t *patchHandle) 4029{ 4030 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4031 ssize_t index; 4032 if (patchHandle) { 4033 index = mAudioPatches.indexOfKey(*patchHandle); 4034 } else { 4035 index = mAudioPatches.indexOfKey(outputDesc->mPatchHandle); 4036 } 4037 if (index < 0) { 4038 return INVALID_OPERATION; 4039 } 4040 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4041 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, delayMs); 4042 ALOGV("resetOutputDevice() releaseAudioPatch returned %d", status); 4043 outputDesc->mPatchHandle = 0; 4044 removeAudioPatch(patchDesc->mHandle); 4045 nextAudioPortGeneration(); 4046 mpClientInterface->onAudioPatchListUpdate(); 4047 return status; 4048} 4049 4050status_t AudioPolicyManager::setInputDevice(audio_io_handle_t input, 4051 audio_devices_t device, 4052 bool force, 4053 audio_patch_handle_t *patchHandle) 4054{ 4055 status_t status = NO_ERROR; 4056 4057 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4058 if ((device != AUDIO_DEVICE_NONE) && ((device != inputDesc->mDevice) || force)) { 4059 inputDesc->mDevice = device; 4060 4061 DeviceVector deviceList = mAvailableInputDevices.getDevicesFromType(device); 4062 if (!deviceList.isEmpty()) { 4063 struct audio_patch patch; 4064 inputDesc->toAudioPortConfig(&patch.sinks[0]); 4065 // AUDIO_SOURCE_HOTWORD is for internal use only: 4066 // handled as AUDIO_SOURCE_VOICE_RECOGNITION by the audio HAL 4067 if (patch.sinks[0].ext.mix.usecase.source == AUDIO_SOURCE_HOTWORD && 4068 !inputDesc->mIsSoundTrigger) { 4069 patch.sinks[0].ext.mix.usecase.source = AUDIO_SOURCE_VOICE_RECOGNITION; 4070 } 4071 patch.num_sinks = 1; 4072 //only one input device for now 4073 deviceList.itemAt(0)->toAudioPortConfig(&patch.sources[0]); 4074 patch.num_sources = 1; 4075 ssize_t index; 4076 if (patchHandle && *patchHandle != AUDIO_PATCH_HANDLE_NONE) { 4077 index = mAudioPatches.indexOfKey(*patchHandle); 4078 } else { 4079 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4080 } 4081 sp< AudioPatch> patchDesc; 4082 audio_patch_handle_t afPatchHandle = AUDIO_PATCH_HANDLE_NONE; 4083 if (index >= 0) { 4084 patchDesc = mAudioPatches.valueAt(index); 4085 afPatchHandle = patchDesc->mAfPatchHandle; 4086 } 4087 4088 status_t status = mpClientInterface->createAudioPatch(&patch, 4089 &afPatchHandle, 4090 0); 4091 ALOGV("setInputDevice() createAudioPatch returned %d patchHandle %d", 4092 status, afPatchHandle); 4093 if (status == NO_ERROR) { 4094 if (index < 0) { 4095 patchDesc = new AudioPatch((audio_patch_handle_t)nextUniqueId(), 4096 &patch, mUidCached); 4097 addAudioPatch(patchDesc->mHandle, patchDesc); 4098 } else { 4099 patchDesc->mPatch = patch; 4100 } 4101 patchDesc->mAfPatchHandle = afPatchHandle; 4102 patchDesc->mUid = mUidCached; 4103 if (patchHandle) { 4104 *patchHandle = patchDesc->mHandle; 4105 } 4106 inputDesc->mPatchHandle = patchDesc->mHandle; 4107 nextAudioPortGeneration(); 4108 mpClientInterface->onAudioPatchListUpdate(); 4109 } 4110 } 4111 } 4112 return status; 4113} 4114 4115status_t AudioPolicyManager::resetInputDevice(audio_io_handle_t input, 4116 audio_patch_handle_t *patchHandle) 4117{ 4118 sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input); 4119 ssize_t index; 4120 if (patchHandle) { 4121 index = mAudioPatches.indexOfKey(*patchHandle); 4122 } else { 4123 index = mAudioPatches.indexOfKey(inputDesc->mPatchHandle); 4124 } 4125 if (index < 0) { 4126 return INVALID_OPERATION; 4127 } 4128 sp< AudioPatch> patchDesc = mAudioPatches.valueAt(index); 4129 status_t status = mpClientInterface->releaseAudioPatch(patchDesc->mAfPatchHandle, 0); 4130 ALOGV("resetInputDevice() releaseAudioPatch returned %d", status); 4131 inputDesc->mPatchHandle = 0; 4132 removeAudioPatch(patchDesc->mHandle); 4133 nextAudioPortGeneration(); 4134 mpClientInterface->onAudioPatchListUpdate(); 4135 return status; 4136} 4137 4138sp<AudioPolicyManager::IOProfile> AudioPolicyManager::getInputProfile(audio_devices_t device, 4139 uint32_t& samplingRate, 4140 audio_format_t format, 4141 audio_channel_mask_t channelMask, 4142 audio_input_flags_t flags) 4143{ 4144 // Choose an input profile based on the requested capture parameters: select the first available 4145 // profile supporting all requested parameters. 4146 4147 for (size_t i = 0; i < mHwModules.size(); i++) 4148 { 4149 if (mHwModules[i]->mHandle == 0) { 4150 continue; 4151 } 4152 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++) 4153 { 4154 sp<IOProfile> profile = mHwModules[i]->mInputProfiles[j]; 4155 // profile->log(); 4156 if (profile->isCompatibleProfile(device, samplingRate, 4157 &samplingRate /*updatedSamplingRate*/, 4158 format, channelMask, (audio_output_flags_t) flags)) { 4159 return profile; 4160 } 4161 } 4162 } 4163 return NULL; 4164} 4165 4166audio_devices_t AudioPolicyManager::getDeviceForInputSource(audio_source_t inputSource) 4167{ 4168 uint32_t device = AUDIO_DEVICE_NONE; 4169 audio_devices_t availableDeviceTypes = mAvailableInputDevices.types() & 4170 ~AUDIO_DEVICE_BIT_IN; 4171 switch (inputSource) { 4172 case AUDIO_SOURCE_VOICE_UPLINK: 4173 if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) { 4174 device = AUDIO_DEVICE_IN_VOICE_CALL; 4175 break; 4176 } 4177 // FALL THROUGH 4178 4179 case AUDIO_SOURCE_DEFAULT: 4180 case AUDIO_SOURCE_MIC: 4181 if (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_A2DP) { 4182 device = AUDIO_DEVICE_IN_BLUETOOTH_A2DP; 4183 break; 4184 } 4185 // FALL THROUGH 4186 4187 case AUDIO_SOURCE_VOICE_RECOGNITION: 4188 case AUDIO_SOURCE_HOTWORD: 4189 case AUDIO_SOURCE_VOICE_COMMUNICATION: 4190 if (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO && 4191 availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) { 4192 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; 4193 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { 4194 device = AUDIO_DEVICE_IN_WIRED_HEADSET; 4195 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { 4196 device = AUDIO_DEVICE_IN_USB_DEVICE; 4197 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 4198 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 4199 } 4200 break; 4201 case AUDIO_SOURCE_CAMCORDER: 4202 if (availableDeviceTypes & AUDIO_DEVICE_IN_BACK_MIC) { 4203 device = AUDIO_DEVICE_IN_BACK_MIC; 4204 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { 4205 device = AUDIO_DEVICE_IN_BUILTIN_MIC; 4206 } 4207 break; 4208 case AUDIO_SOURCE_VOICE_DOWNLINK: 4209 case AUDIO_SOURCE_VOICE_CALL: 4210 if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) { 4211 device = AUDIO_DEVICE_IN_VOICE_CALL; 4212 } 4213 break; 4214 case AUDIO_SOURCE_REMOTE_SUBMIX: 4215 if (availableDeviceTypes & AUDIO_DEVICE_IN_REMOTE_SUBMIX) { 4216 device = AUDIO_DEVICE_IN_REMOTE_SUBMIX; 4217 } 4218 break; 4219 default: 4220 ALOGW("getDeviceForInputSource() invalid input source %d", inputSource); 4221 break; 4222 } 4223 ALOGV("getDeviceForInputSource()input source %d, device %08x", inputSource, device); 4224 return device; 4225} 4226 4227bool AudioPolicyManager::isVirtualInputDevice(audio_devices_t device) 4228{ 4229 if ((device & AUDIO_DEVICE_BIT_IN) != 0) { 4230 device &= ~AUDIO_DEVICE_BIT_IN; 4231 if ((popcount(device) == 1) && ((device & ~APM_AUDIO_IN_DEVICE_VIRTUAL_ALL) == 0)) 4232 return true; 4233 } 4234 return false; 4235} 4236 4237bool AudioPolicyManager::deviceDistinguishesOnAddress(audio_devices_t device) { 4238 return ((device & APM_AUDIO_DEVICE_MATCH_ADDRESS_ALL) != 0); 4239} 4240 4241audio_io_handle_t AudioPolicyManager::getActiveInput(bool ignoreVirtualInputs) 4242{ 4243 for (size_t i = 0; i < mInputs.size(); i++) { 4244 const sp<AudioInputDescriptor> input_descriptor = mInputs.valueAt(i); 4245 if ((input_descriptor->mRefCount > 0) 4246 && (!ignoreVirtualInputs || !isVirtualInputDevice(input_descriptor->mDevice))) { 4247 return mInputs.keyAt(i); 4248 } 4249 } 4250 return 0; 4251} 4252 4253uint32_t AudioPolicyManager::activeInputsCount() const 4254{ 4255 uint32_t count = 0; 4256 for (size_t i = 0; i < mInputs.size(); i++) { 4257 const sp<AudioInputDescriptor> desc = mInputs.valueAt(i); 4258 if (desc->mRefCount > 0) { 4259 return count++; 4260 } 4261 } 4262 return count; 4263} 4264 4265 4266audio_devices_t AudioPolicyManager::getDeviceForVolume(audio_devices_t device) 4267{ 4268 if (device == AUDIO_DEVICE_NONE) { 4269 // this happens when forcing a route update and no track is active on an output. 4270 // In this case the returned category is not important. 4271 device = AUDIO_DEVICE_OUT_SPEAKER; 4272 } else if (popcount(device) > 1) { 4273 // Multiple device selection is either: 4274 // - speaker + one other device: give priority to speaker in this case. 4275 // - one A2DP device + another device: happens with duplicated output. In this case 4276 // retain the device on the A2DP output as the other must not correspond to an active 4277 // selection if not the speaker. 4278 if (device & AUDIO_DEVICE_OUT_SPEAKER) { 4279 device = AUDIO_DEVICE_OUT_SPEAKER; 4280 } else { 4281 device = (audio_devices_t)(device & AUDIO_DEVICE_OUT_ALL_A2DP); 4282 } 4283 } 4284 4285 ALOGW_IF(popcount(device) != 1, 4286 "getDeviceForVolume() invalid device combination: %08x", 4287 device); 4288 4289 return device; 4290} 4291 4292AudioPolicyManager::device_category AudioPolicyManager::getDeviceCategory(audio_devices_t device) 4293{ 4294 switch(getDeviceForVolume(device)) { 4295 case AUDIO_DEVICE_OUT_EARPIECE: 4296 return DEVICE_CATEGORY_EARPIECE; 4297 case AUDIO_DEVICE_OUT_WIRED_HEADSET: 4298 case AUDIO_DEVICE_OUT_WIRED_HEADPHONE: 4299 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO: 4300 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET: 4301 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP: 4302 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES: 4303 return DEVICE_CATEGORY_HEADSET; 4304 case AUDIO_DEVICE_OUT_LINE: 4305 case AUDIO_DEVICE_OUT_AUX_DIGITAL: 4306 /*USB? Remote submix?*/ 4307 return DEVICE_CATEGORY_EXT_MEDIA; 4308 case AUDIO_DEVICE_OUT_SPEAKER: 4309 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT: 4310 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER: 4311 case AUDIO_DEVICE_OUT_USB_ACCESSORY: 4312 case AUDIO_DEVICE_OUT_USB_DEVICE: 4313 case AUDIO_DEVICE_OUT_REMOTE_SUBMIX: 4314 default: 4315 return DEVICE_CATEGORY_SPEAKER; 4316 } 4317} 4318 4319float AudioPolicyManager::volIndexToAmpl(audio_devices_t device, const StreamDescriptor& streamDesc, 4320 int indexInUi) 4321{ 4322 device_category deviceCategory = getDeviceCategory(device); 4323 const VolumeCurvePoint *curve = streamDesc.mVolumeCurve[deviceCategory]; 4324 4325 // the volume index in the UI is relative to the min and max volume indices for this stream type 4326 int nbSteps = 1 + curve[VOLMAX].mIndex - 4327 curve[VOLMIN].mIndex; 4328 int volIdx = (nbSteps * (indexInUi - streamDesc.mIndexMin)) / 4329 (streamDesc.mIndexMax - streamDesc.mIndexMin); 4330 4331 // find what part of the curve this index volume belongs to, or if it's out of bounds 4332 int segment = 0; 4333 if (volIdx < curve[VOLMIN].mIndex) { // out of bounds 4334 return 0.0f; 4335 } else if (volIdx < curve[VOLKNEE1].mIndex) { 4336 segment = 0; 4337 } else if (volIdx < curve[VOLKNEE2].mIndex) { 4338 segment = 1; 4339 } else if (volIdx <= curve[VOLMAX].mIndex) { 4340 segment = 2; 4341 } else { // out of bounds 4342 return 1.0f; 4343 } 4344 4345 // linear interpolation in the attenuation table in dB 4346 float decibels = curve[segment].mDBAttenuation + 4347 ((float)(volIdx - curve[segment].mIndex)) * 4348 ( (curve[segment+1].mDBAttenuation - 4349 curve[segment].mDBAttenuation) / 4350 ((float)(curve[segment+1].mIndex - 4351 curve[segment].mIndex)) ); 4352 4353 float amplification = exp( decibels * 0.115129f); // exp( dB * ln(10) / 20 ) 4354 4355 ALOGVV("VOLUME vol index=[%d %d %d], dB=[%.1f %.1f %.1f] ampl=%.5f", 4356 curve[segment].mIndex, volIdx, 4357 curve[segment+1].mIndex, 4358 curve[segment].mDBAttenuation, 4359 decibels, 4360 curve[segment+1].mDBAttenuation, 4361 amplification); 4362 4363 return amplification; 4364} 4365 4366const AudioPolicyManager::VolumeCurvePoint 4367 AudioPolicyManager::sDefaultVolumeCurve[AudioPolicyManager::VOLCNT] = { 4368 {1, -49.5f}, {33, -33.5f}, {66, -17.0f}, {100, 0.0f} 4369}; 4370 4371const AudioPolicyManager::VolumeCurvePoint 4372 AudioPolicyManager::sDefaultMediaVolumeCurve[AudioPolicyManager::VOLCNT] = { 4373 {1, -58.0f}, {20, -40.0f}, {60, -17.0f}, {100, 0.0f} 4374}; 4375 4376const AudioPolicyManager::VolumeCurvePoint 4377 AudioPolicyManager::sExtMediaSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 4378 {1, -58.0f}, {20, -40.0f}, {60, -21.0f}, {100, -10.0f} 4379}; 4380 4381const AudioPolicyManager::VolumeCurvePoint 4382 AudioPolicyManager::sSpeakerMediaVolumeCurve[AudioPolicyManager::VOLCNT] = { 4383 {1, -56.0f}, {20, -34.0f}, {60, -11.0f}, {100, 0.0f} 4384}; 4385 4386const AudioPolicyManager::VolumeCurvePoint 4387 AudioPolicyManager::sSpeakerMediaVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 4388 {1, -55.0f}, {20, -43.0f}, {86, -12.0f}, {100, 0.0f} 4389}; 4390 4391const AudioPolicyManager::VolumeCurvePoint 4392 AudioPolicyManager::sSpeakerSonificationVolumeCurve[AudioPolicyManager::VOLCNT] = { 4393 {1, -29.7f}, {33, -20.1f}, {66, -10.2f}, {100, 0.0f} 4394}; 4395 4396const AudioPolicyManager::VolumeCurvePoint 4397 AudioPolicyManager::sSpeakerSonificationVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 4398 {1, -35.7f}, {33, -26.1f}, {66, -13.2f}, {100, 0.0f} 4399}; 4400 4401// AUDIO_STREAM_SYSTEM, AUDIO_STREAM_ENFORCED_AUDIBLE and AUDIO_STREAM_DTMF volume tracks 4402// AUDIO_STREAM_RING on phones and AUDIO_STREAM_MUSIC on tablets. 4403// AUDIO_STREAM_DTMF tracks AUDIO_STREAM_VOICE_CALL while in call (See AudioService.java). 4404// The range is constrained between -24dB and -6dB over speaker and -30dB and -18dB over headset. 4405 4406const AudioPolicyManager::VolumeCurvePoint 4407 AudioPolicyManager::sDefaultSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 4408 {1, -24.0f}, {33, -18.0f}, {66, -12.0f}, {100, -6.0f} 4409}; 4410 4411const AudioPolicyManager::VolumeCurvePoint 4412 AudioPolicyManager::sDefaultSystemVolumeCurveDrc[AudioPolicyManager::VOLCNT] = { 4413 {1, -34.0f}, {33, -24.0f}, {66, -15.0f}, {100, -6.0f} 4414}; 4415 4416const AudioPolicyManager::VolumeCurvePoint 4417 AudioPolicyManager::sHeadsetSystemVolumeCurve[AudioPolicyManager::VOLCNT] = { 4418 {1, -30.0f}, {33, -26.0f}, {66, -22.0f}, {100, -18.0f} 4419}; 4420 4421const AudioPolicyManager::VolumeCurvePoint 4422 AudioPolicyManager::sDefaultVoiceVolumeCurve[AudioPolicyManager::VOLCNT] = { 4423 {0, -42.0f}, {33, -28.0f}, {66, -14.0f}, {100, 0.0f} 4424}; 4425 4426const AudioPolicyManager::VolumeCurvePoint 4427 AudioPolicyManager::sSpeakerVoiceVolumeCurve[AudioPolicyManager::VOLCNT] = { 4428 {0, -24.0f}, {33, -16.0f}, {66, -8.0f}, {100, 0.0f} 4429}; 4430 4431const AudioPolicyManager::VolumeCurvePoint 4432 *AudioPolicyManager::sVolumeProfiles[AUDIO_STREAM_CNT] 4433 [AudioPolicyManager::DEVICE_CATEGORY_CNT] = { 4434 { // AUDIO_STREAM_VOICE_CALL 4435 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 4436 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4437 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_EARPIECE 4438 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 4439 }, 4440 { // AUDIO_STREAM_SYSTEM 4441 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 4442 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4443 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 4444 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 4445 }, 4446 { // AUDIO_STREAM_RING 4447 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 4448 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4449 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 4450 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 4451 }, 4452 { // AUDIO_STREAM_MUSIC 4453 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 4454 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4455 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EARPIECE 4456 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 4457 }, 4458 { // AUDIO_STREAM_ALARM 4459 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 4460 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4461 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 4462 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 4463 }, 4464 { // AUDIO_STREAM_NOTIFICATION 4465 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 4466 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4467 sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 4468 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 4469 }, 4470 { // AUDIO_STREAM_BLUETOOTH_SCO 4471 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 4472 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4473 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_EARPIECE 4474 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 4475 }, 4476 { // AUDIO_STREAM_ENFORCED_AUDIBLE 4477 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 4478 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4479 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 4480 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 4481 }, 4482 { // AUDIO_STREAM_DTMF 4483 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 4484 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4485 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 4486 sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 4487 }, 4488 { // AUDIO_STREAM_TTS 4489 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 4490 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 4491 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EARPIECE 4492 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 4493 }, 4494}; 4495 4496void AudioPolicyManager::initializeVolumeCurves() 4497{ 4498 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 4499 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { 4500 mStreams[i].mVolumeCurve[j] = 4501 sVolumeProfiles[i][j]; 4502 } 4503 } 4504 4505 // Check availability of DRC on speaker path: if available, override some of the speaker curves 4506 if (mSpeakerDrcEnabled) { 4507 mStreams[AUDIO_STREAM_SYSTEM].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 4508 sDefaultSystemVolumeCurveDrc; 4509 mStreams[AUDIO_STREAM_RING].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 4510 sSpeakerSonificationVolumeCurveDrc; 4511 mStreams[AUDIO_STREAM_ALARM].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 4512 sSpeakerSonificationVolumeCurveDrc; 4513 mStreams[AUDIO_STREAM_NOTIFICATION].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 4514 sSpeakerSonificationVolumeCurveDrc; 4515 mStreams[AUDIO_STREAM_MUSIC].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] = 4516 sSpeakerMediaVolumeCurveDrc; 4517 } 4518} 4519 4520float AudioPolicyManager::computeVolume(audio_stream_type_t stream, 4521 int index, 4522 audio_io_handle_t output, 4523 audio_devices_t device) 4524{ 4525 float volume = 1.0; 4526 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4527 StreamDescriptor &streamDesc = mStreams[stream]; 4528 4529 if (device == AUDIO_DEVICE_NONE) { 4530 device = outputDesc->device(); 4531 } 4532 4533 volume = volIndexToAmpl(device, streamDesc, index); 4534 4535 // if a headset is connected, apply the following rules to ring tones and notifications 4536 // to avoid sound level bursts in user's ears: 4537 // - always attenuate ring tones and notifications volume by 6dB 4538 // - if music is playing, always limit the volume to current music volume, 4539 // with a minimum threshold at -36dB so that notification is always perceived. 4540 const routing_strategy stream_strategy = getStrategy(stream); 4541 if ((device & (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP | 4542 AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES | 4543 AUDIO_DEVICE_OUT_WIRED_HEADSET | 4544 AUDIO_DEVICE_OUT_WIRED_HEADPHONE)) && 4545 ((stream_strategy == STRATEGY_SONIFICATION) 4546 || (stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL) 4547 || (stream == AUDIO_STREAM_SYSTEM) 4548 || ((stream_strategy == STRATEGY_ENFORCED_AUDIBLE) && 4549 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_NONE))) && 4550 streamDesc.mCanBeMuted) { 4551 volume *= SONIFICATION_HEADSET_VOLUME_FACTOR; 4552 // when the phone is ringing we must consider that music could have been paused just before 4553 // by the music application and behave as if music was active if the last music track was 4554 // just stopped 4555 if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY) || 4556 mLimitRingtoneVolume) { 4557 audio_devices_t musicDevice = getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/); 4558 float musicVol = computeVolume(AUDIO_STREAM_MUSIC, 4559 mStreams[AUDIO_STREAM_MUSIC].getVolumeIndex(musicDevice), 4560 output, 4561 musicDevice); 4562 float minVol = (musicVol > SONIFICATION_HEADSET_VOLUME_MIN) ? 4563 musicVol : SONIFICATION_HEADSET_VOLUME_MIN; 4564 if (volume > minVol) { 4565 volume = minVol; 4566 ALOGV("computeVolume limiting volume to %f musicVol %f", minVol, musicVol); 4567 } 4568 } 4569 } 4570 4571 return volume; 4572} 4573 4574status_t AudioPolicyManager::checkAndSetVolume(audio_stream_type_t stream, 4575 int index, 4576 audio_io_handle_t output, 4577 audio_devices_t device, 4578 int delayMs, 4579 bool force) 4580{ 4581 4582 // do not change actual stream volume if the stream is muted 4583 if (mOutputs.valueFor(output)->mMuteCount[stream] != 0) { 4584 ALOGVV("checkAndSetVolume() stream %d muted count %d", 4585 stream, mOutputs.valueFor(output)->mMuteCount[stream]); 4586 return NO_ERROR; 4587 } 4588 4589 // do not change in call volume if bluetooth is connected and vice versa 4590 if ((stream == AUDIO_STREAM_VOICE_CALL && 4591 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO) || 4592 (stream == AUDIO_STREAM_BLUETOOTH_SCO && 4593 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] != AUDIO_POLICY_FORCE_BT_SCO)) { 4594 ALOGV("checkAndSetVolume() cannot set stream %d volume with force use = %d for comm", 4595 stream, mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]); 4596 return INVALID_OPERATION; 4597 } 4598 4599 float volume = computeVolume(stream, index, output, device); 4600 // We actually change the volume if: 4601 // - the float value returned by computeVolume() changed 4602 // - the force flag is set 4603 if (volume != mOutputs.valueFor(output)->mCurVolume[stream] || 4604 force) { 4605 mOutputs.valueFor(output)->mCurVolume[stream] = volume; 4606 ALOGVV("checkAndSetVolume() for output %d stream %d, volume %f, delay %d", output, stream, volume, delayMs); 4607 // Force VOICE_CALL to track BLUETOOTH_SCO stream volume when bluetooth audio is 4608 // enabled 4609 if (stream == AUDIO_STREAM_BLUETOOTH_SCO) { 4610 mpClientInterface->setStreamVolume(AUDIO_STREAM_VOICE_CALL, volume, output, delayMs); 4611 } 4612 mpClientInterface->setStreamVolume(stream, volume, output, delayMs); 4613 } 4614 4615 if (stream == AUDIO_STREAM_VOICE_CALL || 4616 stream == AUDIO_STREAM_BLUETOOTH_SCO) { 4617 float voiceVolume; 4618 // Force voice volume to max for bluetooth SCO as volume is managed by the headset 4619 if (stream == AUDIO_STREAM_VOICE_CALL) { 4620 voiceVolume = (float)index/(float)mStreams[stream].mIndexMax; 4621 } else { 4622 voiceVolume = 1.0; 4623 } 4624 4625 if (voiceVolume != mLastVoiceVolume && output == mPrimaryOutput) { 4626 mpClientInterface->setVoiceVolume(voiceVolume, delayMs); 4627 mLastVoiceVolume = voiceVolume; 4628 } 4629 } 4630 4631 return NO_ERROR; 4632} 4633 4634void AudioPolicyManager::applyStreamVolumes(audio_io_handle_t output, 4635 audio_devices_t device, 4636 int delayMs, 4637 bool force) 4638{ 4639 ALOGVV("applyStreamVolumes() for output %d and device %x", output, device); 4640 4641 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 4642 checkAndSetVolume((audio_stream_type_t)stream, 4643 mStreams[stream].getVolumeIndex(device), 4644 output, 4645 device, 4646 delayMs, 4647 force); 4648 } 4649} 4650 4651void AudioPolicyManager::setStrategyMute(routing_strategy strategy, 4652 bool on, 4653 audio_io_handle_t output, 4654 int delayMs, 4655 audio_devices_t device) 4656{ 4657 ALOGVV("setStrategyMute() strategy %d, mute %d, output %d", strategy, on, output); 4658 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 4659 if (getStrategy((audio_stream_type_t)stream) == strategy) { 4660 setStreamMute((audio_stream_type_t)stream, on, output, delayMs, device); 4661 } 4662 } 4663} 4664 4665void AudioPolicyManager::setStreamMute(audio_stream_type_t stream, 4666 bool on, 4667 audio_io_handle_t output, 4668 int delayMs, 4669 audio_devices_t device) 4670{ 4671 StreamDescriptor &streamDesc = mStreams[stream]; 4672 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(output); 4673 if (device == AUDIO_DEVICE_NONE) { 4674 device = outputDesc->device(); 4675 } 4676 4677 ALOGVV("setStreamMute() stream %d, mute %d, output %d, mMuteCount %d device %04x", 4678 stream, on, output, outputDesc->mMuteCount[stream], device); 4679 4680 if (on) { 4681 if (outputDesc->mMuteCount[stream] == 0) { 4682 if (streamDesc.mCanBeMuted && 4683 ((stream != AUDIO_STREAM_ENFORCED_AUDIBLE) || 4684 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_NONE))) { 4685 checkAndSetVolume(stream, 0, output, device, delayMs); 4686 } 4687 } 4688 // increment mMuteCount after calling checkAndSetVolume() so that volume change is not ignored 4689 outputDesc->mMuteCount[stream]++; 4690 } else { 4691 if (outputDesc->mMuteCount[stream] == 0) { 4692 ALOGV("setStreamMute() unmuting non muted stream!"); 4693 return; 4694 } 4695 if (--outputDesc->mMuteCount[stream] == 0) { 4696 checkAndSetVolume(stream, 4697 streamDesc.getVolumeIndex(device), 4698 output, 4699 device, 4700 delayMs); 4701 } 4702 } 4703} 4704 4705void AudioPolicyManager::handleIncallSonification(audio_stream_type_t stream, 4706 bool starting, bool stateChange) 4707{ 4708 // if the stream pertains to sonification strategy and we are in call we must 4709 // mute the stream if it is low visibility. If it is high visibility, we must play a tone 4710 // in the device used for phone strategy and play the tone if the selected device does not 4711 // interfere with the device used for phone strategy 4712 // if stateChange is true, we are called from setPhoneState() and we must mute or unmute as 4713 // many times as there are active tracks on the output 4714 const routing_strategy stream_strategy = getStrategy(stream); 4715 if ((stream_strategy == STRATEGY_SONIFICATION) || 4716 ((stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL))) { 4717 sp<AudioOutputDescriptor> outputDesc = mOutputs.valueFor(mPrimaryOutput); 4718 ALOGV("handleIncallSonification() stream %d starting %d device %x stateChange %d", 4719 stream, starting, outputDesc->mDevice, stateChange); 4720 if (outputDesc->mRefCount[stream]) { 4721 int muteCount = 1; 4722 if (stateChange) { 4723 muteCount = outputDesc->mRefCount[stream]; 4724 } 4725 if (audio_is_low_visibility(stream)) { 4726 ALOGV("handleIncallSonification() low visibility, muteCount %d", muteCount); 4727 for (int i = 0; i < muteCount; i++) { 4728 setStreamMute(stream, starting, mPrimaryOutput); 4729 } 4730 } else { 4731 ALOGV("handleIncallSonification() high visibility"); 4732 if (outputDesc->device() & 4733 getDeviceForStrategy(STRATEGY_PHONE, true /*fromCache*/)) { 4734 ALOGV("handleIncallSonification() high visibility muted, muteCount %d", muteCount); 4735 for (int i = 0; i < muteCount; i++) { 4736 setStreamMute(stream, starting, mPrimaryOutput); 4737 } 4738 } 4739 if (starting) { 4740 mpClientInterface->startTone(AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION, 4741 AUDIO_STREAM_VOICE_CALL); 4742 } else { 4743 mpClientInterface->stopTone(); 4744 } 4745 } 4746 } 4747 } 4748} 4749 4750bool AudioPolicyManager::isInCall() 4751{ 4752 return isStateInCall(mPhoneState); 4753} 4754 4755bool AudioPolicyManager::isStateInCall(int state) { 4756 return ((state == AUDIO_MODE_IN_CALL) || 4757 (state == AUDIO_MODE_IN_COMMUNICATION)); 4758} 4759 4760uint32_t AudioPolicyManager::getMaxEffectsCpuLoad() 4761{ 4762 return MAX_EFFECTS_CPU_LOAD; 4763} 4764 4765uint32_t AudioPolicyManager::getMaxEffectsMemory() 4766{ 4767 return MAX_EFFECTS_MEMORY; 4768} 4769 4770 4771// --- AudioOutputDescriptor class implementation 4772 4773AudioPolicyManager::AudioOutputDescriptor::AudioOutputDescriptor( 4774 const sp<IOProfile>& profile) 4775 : mId(0), mIoHandle(0), mLatency(0), 4776 mFlags((audio_output_flags_t)0), mDevice(AUDIO_DEVICE_NONE), mPatchHandle(0), 4777 mOutput1(0), mOutput2(0), mProfile(profile), mDirectOpenCount(0) 4778{ 4779 // clear usage count for all stream types 4780 for (int i = 0; i < AUDIO_STREAM_CNT; i++) { 4781 mRefCount[i] = 0; 4782 mCurVolume[i] = -1.0; 4783 mMuteCount[i] = 0; 4784 mStopTime[i] = 0; 4785 } 4786 for (int i = 0; i < NUM_STRATEGIES; i++) { 4787 mStrategyMutedByDevice[i] = false; 4788 } 4789 if (profile != NULL) { 4790 mAudioPort = profile; 4791 mFlags = profile->mFlags; 4792 mSamplingRate = profile->pickSamplingRate(); 4793 mFormat = profile->pickFormat(); 4794 mChannelMask = profile->pickChannelMask(); 4795 if (profile->mGains.size() > 0) { 4796 profile->mGains[0]->getDefaultConfig(&mGain); 4797 } 4798 } 4799} 4800 4801audio_devices_t AudioPolicyManager::AudioOutputDescriptor::device() const 4802{ 4803 if (isDuplicated()) { 4804 return (audio_devices_t)(mOutput1->mDevice | mOutput2->mDevice); 4805 } else { 4806 return mDevice; 4807 } 4808} 4809 4810uint32_t AudioPolicyManager::AudioOutputDescriptor::latency() 4811{ 4812 if (isDuplicated()) { 4813 return (mOutput1->mLatency > mOutput2->mLatency) ? mOutput1->mLatency : mOutput2->mLatency; 4814 } else { 4815 return mLatency; 4816 } 4817} 4818 4819bool AudioPolicyManager::AudioOutputDescriptor::sharesHwModuleWith( 4820 const sp<AudioOutputDescriptor> outputDesc) 4821{ 4822 if (isDuplicated()) { 4823 return mOutput1->sharesHwModuleWith(outputDesc) || mOutput2->sharesHwModuleWith(outputDesc); 4824 } else if (outputDesc->isDuplicated()){ 4825 return sharesHwModuleWith(outputDesc->mOutput1) || sharesHwModuleWith(outputDesc->mOutput2); 4826 } else { 4827 return (mProfile->mModule == outputDesc->mProfile->mModule); 4828 } 4829} 4830 4831void AudioPolicyManager::AudioOutputDescriptor::changeRefCount(audio_stream_type_t stream, 4832 int delta) 4833{ 4834 // forward usage count change to attached outputs 4835 if (isDuplicated()) { 4836 mOutput1->changeRefCount(stream, delta); 4837 mOutput2->changeRefCount(stream, delta); 4838 } 4839 if ((delta + (int)mRefCount[stream]) < 0) { 4840 ALOGW("changeRefCount() invalid delta %d for stream %d, refCount %d", 4841 delta, stream, mRefCount[stream]); 4842 mRefCount[stream] = 0; 4843 return; 4844 } 4845 mRefCount[stream] += delta; 4846 ALOGV("changeRefCount() stream %d, count %d", stream, mRefCount[stream]); 4847} 4848 4849audio_devices_t AudioPolicyManager::AudioOutputDescriptor::supportedDevices() 4850{ 4851 if (isDuplicated()) { 4852 return (audio_devices_t)(mOutput1->supportedDevices() | mOutput2->supportedDevices()); 4853 } else { 4854 return mProfile->mSupportedDevices.types() ; 4855 } 4856} 4857 4858bool AudioPolicyManager::AudioOutputDescriptor::isActive(uint32_t inPastMs) const 4859{ 4860 return isStrategyActive(NUM_STRATEGIES, inPastMs); 4861} 4862 4863bool AudioPolicyManager::AudioOutputDescriptor::isStrategyActive(routing_strategy strategy, 4864 uint32_t inPastMs, 4865 nsecs_t sysTime) const 4866{ 4867 if ((sysTime == 0) && (inPastMs != 0)) { 4868 sysTime = systemTime(); 4869 } 4870 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 4871 if (((getStrategy((audio_stream_type_t)i) == strategy) || 4872 (NUM_STRATEGIES == strategy)) && 4873 isStreamActive((audio_stream_type_t)i, inPastMs, sysTime)) { 4874 return true; 4875 } 4876 } 4877 return false; 4878} 4879 4880bool AudioPolicyManager::AudioOutputDescriptor::isStreamActive(audio_stream_type_t stream, 4881 uint32_t inPastMs, 4882 nsecs_t sysTime) const 4883{ 4884 if (mRefCount[stream] != 0) { 4885 return true; 4886 } 4887 if (inPastMs == 0) { 4888 return false; 4889 } 4890 if (sysTime == 0) { 4891 sysTime = systemTime(); 4892 } 4893 if (ns2ms(sysTime - mStopTime[stream]) < inPastMs) { 4894 return true; 4895 } 4896 return false; 4897} 4898 4899void AudioPolicyManager::AudioOutputDescriptor::toAudioPortConfig( 4900 struct audio_port_config *dstConfig, 4901 const struct audio_port_config *srcConfig) const 4902{ 4903 ALOG_ASSERT(!isDuplicated(), "toAudioPortConfig() called on duplicated output %d", mIoHandle); 4904 4905 dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK| 4906 AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN; 4907 if (srcConfig != NULL) { 4908 dstConfig->config_mask |= srcConfig->config_mask; 4909 } 4910 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 4911 4912 dstConfig->id = mId; 4913 dstConfig->role = AUDIO_PORT_ROLE_SOURCE; 4914 dstConfig->type = AUDIO_PORT_TYPE_MIX; 4915 dstConfig->ext.mix.hw_module = mProfile->mModule->mHandle; 4916 dstConfig->ext.mix.handle = mIoHandle; 4917 dstConfig->ext.mix.usecase.stream = AUDIO_STREAM_DEFAULT; 4918} 4919 4920void AudioPolicyManager::AudioOutputDescriptor::toAudioPort( 4921 struct audio_port *port) const 4922{ 4923 ALOG_ASSERT(!isDuplicated(), "toAudioPort() called on duplicated output %d", mIoHandle); 4924 mProfile->toAudioPort(port); 4925 port->id = mId; 4926 toAudioPortConfig(&port->active_config); 4927 port->ext.mix.hw_module = mProfile->mModule->mHandle; 4928 port->ext.mix.handle = mIoHandle; 4929 port->ext.mix.latency_class = 4930 mFlags & AUDIO_OUTPUT_FLAG_FAST ? AUDIO_LATENCY_LOW : AUDIO_LATENCY_NORMAL; 4931} 4932 4933status_t AudioPolicyManager::AudioOutputDescriptor::dump(int fd) 4934{ 4935 const size_t SIZE = 256; 4936 char buffer[SIZE]; 4937 String8 result; 4938 4939 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 4940 result.append(buffer); 4941 snprintf(buffer, SIZE, " Format: %08x\n", mFormat); 4942 result.append(buffer); 4943 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 4944 result.append(buffer); 4945 snprintf(buffer, SIZE, " Latency: %d\n", mLatency); 4946 result.append(buffer); 4947 snprintf(buffer, SIZE, " Flags %08x\n", mFlags); 4948 result.append(buffer); 4949 snprintf(buffer, SIZE, " Devices %08x\n", device()); 4950 result.append(buffer); 4951 snprintf(buffer, SIZE, " Stream volume refCount muteCount\n"); 4952 result.append(buffer); 4953 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) { 4954 snprintf(buffer, SIZE, " %02d %.03f %02d %02d\n", 4955 i, mCurVolume[i], mRefCount[i], mMuteCount[i]); 4956 result.append(buffer); 4957 } 4958 write(fd, result.string(), result.size()); 4959 4960 return NO_ERROR; 4961} 4962 4963// --- AudioInputDescriptor class implementation 4964 4965AudioPolicyManager::AudioInputDescriptor::AudioInputDescriptor(const sp<IOProfile>& profile) 4966 : mId(0), mIoHandle(0), 4967 mDevice(AUDIO_DEVICE_NONE), mPatchHandle(0), mRefCount(0), 4968 mInputSource(AUDIO_SOURCE_DEFAULT), mProfile(profile), mIsSoundTrigger(false) 4969{ 4970 if (profile != NULL) { 4971 mAudioPort = profile; 4972 mSamplingRate = profile->pickSamplingRate(); 4973 mFormat = profile->pickFormat(); 4974 mChannelMask = profile->pickChannelMask(); 4975 if (profile->mGains.size() > 0) { 4976 profile->mGains[0]->getDefaultConfig(&mGain); 4977 } 4978 } 4979} 4980 4981void AudioPolicyManager::AudioInputDescriptor::toAudioPortConfig( 4982 struct audio_port_config *dstConfig, 4983 const struct audio_port_config *srcConfig) const 4984{ 4985 ALOG_ASSERT(mProfile != 0, 4986 "toAudioPortConfig() called on input with null profile %d", mIoHandle); 4987 dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK| 4988 AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN; 4989 if (srcConfig != NULL) { 4990 dstConfig->config_mask |= srcConfig->config_mask; 4991 } 4992 4993 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 4994 4995 dstConfig->id = mId; 4996 dstConfig->role = AUDIO_PORT_ROLE_SINK; 4997 dstConfig->type = AUDIO_PORT_TYPE_MIX; 4998 dstConfig->ext.mix.hw_module = mProfile->mModule->mHandle; 4999 dstConfig->ext.mix.handle = mIoHandle; 5000 dstConfig->ext.mix.usecase.source = mInputSource; 5001} 5002 5003void AudioPolicyManager::AudioInputDescriptor::toAudioPort( 5004 struct audio_port *port) const 5005{ 5006 ALOG_ASSERT(mProfile != 0, "toAudioPort() called on input with null profile %d", mIoHandle); 5007 5008 mProfile->toAudioPort(port); 5009 port->id = mId; 5010 toAudioPortConfig(&port->active_config); 5011 port->ext.mix.hw_module = mProfile->mModule->mHandle; 5012 port->ext.mix.handle = mIoHandle; 5013 port->ext.mix.latency_class = AUDIO_LATENCY_NORMAL; 5014} 5015 5016status_t AudioPolicyManager::AudioInputDescriptor::dump(int fd) 5017{ 5018 const size_t SIZE = 256; 5019 char buffer[SIZE]; 5020 String8 result; 5021 5022 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate); 5023 result.append(buffer); 5024 snprintf(buffer, SIZE, " Format: %d\n", mFormat); 5025 result.append(buffer); 5026 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask); 5027 result.append(buffer); 5028 snprintf(buffer, SIZE, " Devices %08x\n", mDevice); 5029 result.append(buffer); 5030 snprintf(buffer, SIZE, " Ref Count %d\n", mRefCount); 5031 result.append(buffer); 5032 snprintf(buffer, SIZE, " Open Ref Count %d\n", mOpenRefCount); 5033 result.append(buffer); 5034 5035 write(fd, result.string(), result.size()); 5036 5037 return NO_ERROR; 5038} 5039 5040// --- StreamDescriptor class implementation 5041 5042AudioPolicyManager::StreamDescriptor::StreamDescriptor() 5043 : mIndexMin(0), mIndexMax(1), mCanBeMuted(true) 5044{ 5045 mIndexCur.add(AUDIO_DEVICE_OUT_DEFAULT, 0); 5046} 5047 5048int AudioPolicyManager::StreamDescriptor::getVolumeIndex(audio_devices_t device) 5049{ 5050 device = AudioPolicyManager::getDeviceForVolume(device); 5051 // there is always a valid entry for AUDIO_DEVICE_OUT_DEFAULT 5052 if (mIndexCur.indexOfKey(device) < 0) { 5053 device = AUDIO_DEVICE_OUT_DEFAULT; 5054 } 5055 return mIndexCur.valueFor(device); 5056} 5057 5058void AudioPolicyManager::StreamDescriptor::dump(int fd) 5059{ 5060 const size_t SIZE = 256; 5061 char buffer[SIZE]; 5062 String8 result; 5063 5064 snprintf(buffer, SIZE, "%s %02d %02d ", 5065 mCanBeMuted ? "true " : "false", mIndexMin, mIndexMax); 5066 result.append(buffer); 5067 for (size_t i = 0; i < mIndexCur.size(); i++) { 5068 snprintf(buffer, SIZE, "%04x : %02d, ", 5069 mIndexCur.keyAt(i), 5070 mIndexCur.valueAt(i)); 5071 result.append(buffer); 5072 } 5073 result.append("\n"); 5074 5075 write(fd, result.string(), result.size()); 5076} 5077 5078// --- EffectDescriptor class implementation 5079 5080status_t AudioPolicyManager::EffectDescriptor::dump(int fd) 5081{ 5082 const size_t SIZE = 256; 5083 char buffer[SIZE]; 5084 String8 result; 5085 5086 snprintf(buffer, SIZE, " I/O: %d\n", mIo); 5087 result.append(buffer); 5088 snprintf(buffer, SIZE, " Strategy: %d\n", mStrategy); 5089 result.append(buffer); 5090 snprintf(buffer, SIZE, " Session: %d\n", mSession); 5091 result.append(buffer); 5092 snprintf(buffer, SIZE, " Name: %s\n", mDesc.name); 5093 result.append(buffer); 5094 snprintf(buffer, SIZE, " %s\n", mEnabled ? "Enabled" : "Disabled"); 5095 result.append(buffer); 5096 write(fd, result.string(), result.size()); 5097 5098 return NO_ERROR; 5099} 5100 5101// --- HwModule class implementation 5102 5103AudioPolicyManager::HwModule::HwModule(const char *name) 5104 : mName(strndup(name, AUDIO_HARDWARE_MODULE_ID_MAX_LEN)), 5105 mHalVersion(AUDIO_DEVICE_API_VERSION_MIN), mHandle(0) 5106{ 5107} 5108 5109AudioPolicyManager::HwModule::~HwModule() 5110{ 5111 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 5112 mOutputProfiles[i]->mSupportedDevices.clear(); 5113 } 5114 for (size_t i = 0; i < mInputProfiles.size(); i++) { 5115 mInputProfiles[i]->mSupportedDevices.clear(); 5116 } 5117 free((void *)mName); 5118} 5119 5120status_t AudioPolicyManager::HwModule::loadInput(cnode *root) 5121{ 5122 cnode *node = root->first_child; 5123 5124 sp<IOProfile> profile = new IOProfile(String8(root->name), AUDIO_PORT_ROLE_SINK, this); 5125 5126 while (node) { 5127 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) { 5128 profile->loadSamplingRates((char *)node->value); 5129 } else if (strcmp(node->name, FORMATS_TAG) == 0) { 5130 profile->loadFormats((char *)node->value); 5131 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 5132 profile->loadInChannels((char *)node->value); 5133 } else if (strcmp(node->name, DEVICES_TAG) == 0) { 5134 profile->mSupportedDevices.loadDevicesFromName((char *)node->value, 5135 mDeclaredDevices); 5136 } else if (strcmp(node->name, GAINS_TAG) == 0) { 5137 profile->loadGains(node); 5138 } 5139 node = node->next; 5140 } 5141 ALOGW_IF(profile->mSupportedDevices.isEmpty(), 5142 "loadInput() invalid supported devices"); 5143 ALOGW_IF(profile->mChannelMasks.size() == 0, 5144 "loadInput() invalid supported channel masks"); 5145 ALOGW_IF(profile->mSamplingRates.size() == 0, 5146 "loadInput() invalid supported sampling rates"); 5147 ALOGW_IF(profile->mFormats.size() == 0, 5148 "loadInput() invalid supported formats"); 5149 if (!profile->mSupportedDevices.isEmpty() && 5150 (profile->mChannelMasks.size() != 0) && 5151 (profile->mSamplingRates.size() != 0) && 5152 (profile->mFormats.size() != 0)) { 5153 5154 ALOGV("loadInput() adding input Supported Devices %04x", 5155 profile->mSupportedDevices.types()); 5156 5157 mInputProfiles.add(profile); 5158 return NO_ERROR; 5159 } else { 5160 return BAD_VALUE; 5161 } 5162} 5163 5164status_t AudioPolicyManager::HwModule::loadOutput(cnode *root) 5165{ 5166 cnode *node = root->first_child; 5167 5168 sp<IOProfile> profile = new IOProfile(String8(root->name), AUDIO_PORT_ROLE_SOURCE, this); 5169 5170 while (node) { 5171 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) { 5172 profile->loadSamplingRates((char *)node->value); 5173 } else if (strcmp(node->name, FORMATS_TAG) == 0) { 5174 profile->loadFormats((char *)node->value); 5175 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 5176 profile->loadOutChannels((char *)node->value); 5177 } else if (strcmp(node->name, DEVICES_TAG) == 0) { 5178 profile->mSupportedDevices.loadDevicesFromName((char *)node->value, 5179 mDeclaredDevices); 5180 } else if (strcmp(node->name, FLAGS_TAG) == 0) { 5181 profile->mFlags = parseFlagNames((char *)node->value); 5182 } else if (strcmp(node->name, GAINS_TAG) == 0) { 5183 profile->loadGains(node); 5184 } 5185 node = node->next; 5186 } 5187 ALOGW_IF(profile->mSupportedDevices.isEmpty(), 5188 "loadOutput() invalid supported devices"); 5189 ALOGW_IF(profile->mChannelMasks.size() == 0, 5190 "loadOutput() invalid supported channel masks"); 5191 ALOGW_IF(profile->mSamplingRates.size() == 0, 5192 "loadOutput() invalid supported sampling rates"); 5193 ALOGW_IF(profile->mFormats.size() == 0, 5194 "loadOutput() invalid supported formats"); 5195 if (!profile->mSupportedDevices.isEmpty() && 5196 (profile->mChannelMasks.size() != 0) && 5197 (profile->mSamplingRates.size() != 0) && 5198 (profile->mFormats.size() != 0)) { 5199 5200 ALOGV("loadOutput() adding output Supported Devices %04x, mFlags %04x", 5201 profile->mSupportedDevices.types(), profile->mFlags); 5202 5203 mOutputProfiles.add(profile); 5204 return NO_ERROR; 5205 } else { 5206 return BAD_VALUE; 5207 } 5208} 5209 5210status_t AudioPolicyManager::HwModule::loadDevice(cnode *root) 5211{ 5212 cnode *node = root->first_child; 5213 5214 audio_devices_t type = AUDIO_DEVICE_NONE; 5215 while (node) { 5216 if (strcmp(node->name, DEVICE_TYPE) == 0) { 5217 type = parseDeviceNames((char *)node->value); 5218 break; 5219 } 5220 node = node->next; 5221 } 5222 if (type == AUDIO_DEVICE_NONE || 5223 (!audio_is_input_device(type) && !audio_is_output_device(type))) { 5224 ALOGW("loadDevice() bad type %08x", type); 5225 return BAD_VALUE; 5226 } 5227 sp<DeviceDescriptor> deviceDesc = new DeviceDescriptor(String8(root->name), type); 5228 deviceDesc->mModule = this; 5229 5230 node = root->first_child; 5231 while (node) { 5232 if (strcmp(node->name, DEVICE_ADDRESS) == 0) { 5233 deviceDesc->mAddress = String8((char *)node->value); 5234 } else if (strcmp(node->name, CHANNELS_TAG) == 0) { 5235 if (audio_is_input_device(type)) { 5236 deviceDesc->loadInChannels((char *)node->value); 5237 } else { 5238 deviceDesc->loadOutChannels((char *)node->value); 5239 } 5240 } else if (strcmp(node->name, GAINS_TAG) == 0) { 5241 deviceDesc->loadGains(node); 5242 } 5243 node = node->next; 5244 } 5245 5246 ALOGV("loadDevice() adding device name %s type %08x address %s", 5247 deviceDesc->mName.string(), type, deviceDesc->mAddress.string()); 5248 5249 mDeclaredDevices.add(deviceDesc); 5250 5251 return NO_ERROR; 5252} 5253 5254void AudioPolicyManager::HwModule::dump(int fd) 5255{ 5256 const size_t SIZE = 256; 5257 char buffer[SIZE]; 5258 String8 result; 5259 5260 snprintf(buffer, SIZE, " - name: %s\n", mName); 5261 result.append(buffer); 5262 snprintf(buffer, SIZE, " - handle: %d\n", mHandle); 5263 result.append(buffer); 5264 snprintf(buffer, SIZE, " - version: %u.%u\n", mHalVersion >> 8, mHalVersion & 0xFF); 5265 result.append(buffer); 5266 write(fd, result.string(), result.size()); 5267 if (mOutputProfiles.size()) { 5268 write(fd, " - outputs:\n", strlen(" - outputs:\n")); 5269 for (size_t i = 0; i < mOutputProfiles.size(); i++) { 5270 snprintf(buffer, SIZE, " output %zu:\n", i); 5271 write(fd, buffer, strlen(buffer)); 5272 mOutputProfiles[i]->dump(fd); 5273 } 5274 } 5275 if (mInputProfiles.size()) { 5276 write(fd, " - inputs:\n", strlen(" - inputs:\n")); 5277 for (size_t i = 0; i < mInputProfiles.size(); i++) { 5278 snprintf(buffer, SIZE, " input %zu:\n", i); 5279 write(fd, buffer, strlen(buffer)); 5280 mInputProfiles[i]->dump(fd); 5281 } 5282 } 5283 if (mDeclaredDevices.size()) { 5284 write(fd, " - devices:\n", strlen(" - devices:\n")); 5285 for (size_t i = 0; i < mDeclaredDevices.size(); i++) { 5286 mDeclaredDevices[i]->dump(fd, 4, i); 5287 } 5288 } 5289} 5290 5291// --- AudioPort class implementation 5292 5293 5294AudioPolicyManager::AudioPort::AudioPort(const String8& name, audio_port_type_t type, 5295 audio_port_role_t role, const sp<HwModule>& module) : 5296 mName(name), mType(type), mRole(role), mModule(module), mFlags((audio_output_flags_t)0) 5297{ 5298 mUseInChannelMask = ((type == AUDIO_PORT_TYPE_DEVICE) && (role == AUDIO_PORT_ROLE_SOURCE)) || 5299 ((type == AUDIO_PORT_TYPE_MIX) && (role == AUDIO_PORT_ROLE_SINK)); 5300} 5301 5302void AudioPolicyManager::AudioPort::toAudioPort(struct audio_port *port) const 5303{ 5304 port->role = mRole; 5305 port->type = mType; 5306 unsigned int i; 5307 for (i = 0; i < mSamplingRates.size() && i < AUDIO_PORT_MAX_SAMPLING_RATES; i++) { 5308 port->sample_rates[i] = mSamplingRates[i]; 5309 } 5310 port->num_sample_rates = i; 5311 for (i = 0; i < mChannelMasks.size() && i < AUDIO_PORT_MAX_CHANNEL_MASKS; i++) { 5312 port->channel_masks[i] = mChannelMasks[i]; 5313 } 5314 port->num_channel_masks = i; 5315 for (i = 0; i < mFormats.size() && i < AUDIO_PORT_MAX_FORMATS; i++) { 5316 port->formats[i] = mFormats[i]; 5317 } 5318 port->num_formats = i; 5319 5320 ALOGV("AudioPort::toAudioPort() num gains %zu", mGains.size()); 5321 5322 for (i = 0; i < mGains.size() && i < AUDIO_PORT_MAX_GAINS; i++) { 5323 port->gains[i] = mGains[i]->mGain; 5324 } 5325 port->num_gains = i; 5326} 5327 5328 5329void AudioPolicyManager::AudioPort::loadSamplingRates(char *name) 5330{ 5331 char *str = strtok(name, "|"); 5332 5333 // by convention, "0' in the first entry in mSamplingRates indicates the supported sampling 5334 // rates should be read from the output stream after it is opened for the first time 5335 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 5336 mSamplingRates.add(0); 5337 return; 5338 } 5339 5340 while (str != NULL) { 5341 uint32_t rate = atoi(str); 5342 if (rate != 0) { 5343 ALOGV("loadSamplingRates() adding rate %d", rate); 5344 mSamplingRates.add(rate); 5345 } 5346 str = strtok(NULL, "|"); 5347 } 5348} 5349 5350void AudioPolicyManager::AudioPort::loadFormats(char *name) 5351{ 5352 char *str = strtok(name, "|"); 5353 5354 // by convention, "0' in the first entry in mFormats indicates the supported formats 5355 // should be read from the output stream after it is opened for the first time 5356 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 5357 mFormats.add(AUDIO_FORMAT_DEFAULT); 5358 return; 5359 } 5360 5361 while (str != NULL) { 5362 audio_format_t format = (audio_format_t)stringToEnum(sFormatNameToEnumTable, 5363 ARRAY_SIZE(sFormatNameToEnumTable), 5364 str); 5365 if (format != AUDIO_FORMAT_DEFAULT) { 5366 mFormats.add(format); 5367 } 5368 str = strtok(NULL, "|"); 5369 } 5370} 5371 5372void AudioPolicyManager::AudioPort::loadInChannels(char *name) 5373{ 5374 const char *str = strtok(name, "|"); 5375 5376 ALOGV("loadInChannels() %s", name); 5377 5378 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 5379 mChannelMasks.add(0); 5380 return; 5381 } 5382 5383 while (str != NULL) { 5384 audio_channel_mask_t channelMask = 5385 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable, 5386 ARRAY_SIZE(sInChannelsNameToEnumTable), 5387 str); 5388 if (channelMask != 0) { 5389 ALOGV("loadInChannels() adding channelMask %04x", channelMask); 5390 mChannelMasks.add(channelMask); 5391 } 5392 str = strtok(NULL, "|"); 5393 } 5394} 5395 5396void AudioPolicyManager::AudioPort::loadOutChannels(char *name) 5397{ 5398 const char *str = strtok(name, "|"); 5399 5400 ALOGV("loadOutChannels() %s", name); 5401 5402 // by convention, "0' in the first entry in mChannelMasks indicates the supported channel 5403 // masks should be read from the output stream after it is opened for the first time 5404 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { 5405 mChannelMasks.add(0); 5406 return; 5407 } 5408 5409 while (str != NULL) { 5410 audio_channel_mask_t channelMask = 5411 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable, 5412 ARRAY_SIZE(sOutChannelsNameToEnumTable), 5413 str); 5414 if (channelMask != 0) { 5415 mChannelMasks.add(channelMask); 5416 } 5417 str = strtok(NULL, "|"); 5418 } 5419 return; 5420} 5421 5422audio_gain_mode_t AudioPolicyManager::AudioPort::loadGainMode(char *name) 5423{ 5424 const char *str = strtok(name, "|"); 5425 5426 ALOGV("loadGainMode() %s", name); 5427 audio_gain_mode_t mode = 0; 5428 while (str != NULL) { 5429 mode |= (audio_gain_mode_t)stringToEnum(sGainModeNameToEnumTable, 5430 ARRAY_SIZE(sGainModeNameToEnumTable), 5431 str); 5432 str = strtok(NULL, "|"); 5433 } 5434 return mode; 5435} 5436 5437void AudioPolicyManager::AudioPort::loadGain(cnode *root, int index) 5438{ 5439 cnode *node = root->first_child; 5440 5441 sp<AudioGain> gain = new AudioGain(index, mUseInChannelMask); 5442 5443 while (node) { 5444 if (strcmp(node->name, GAIN_MODE) == 0) { 5445 gain->mGain.mode = loadGainMode((char *)node->value); 5446 } else if (strcmp(node->name, GAIN_CHANNELS) == 0) { 5447 if (mUseInChannelMask) { 5448 gain->mGain.channel_mask = 5449 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable, 5450 ARRAY_SIZE(sInChannelsNameToEnumTable), 5451 (char *)node->value); 5452 } else { 5453 gain->mGain.channel_mask = 5454 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable, 5455 ARRAY_SIZE(sOutChannelsNameToEnumTable), 5456 (char *)node->value); 5457 } 5458 } else if (strcmp(node->name, GAIN_MIN_VALUE) == 0) { 5459 gain->mGain.min_value = atoi((char *)node->value); 5460 } else if (strcmp(node->name, GAIN_MAX_VALUE) == 0) { 5461 gain->mGain.max_value = atoi((char *)node->value); 5462 } else if (strcmp(node->name, GAIN_DEFAULT_VALUE) == 0) { 5463 gain->mGain.default_value = atoi((char *)node->value); 5464 } else if (strcmp(node->name, GAIN_STEP_VALUE) == 0) { 5465 gain->mGain.step_value = atoi((char *)node->value); 5466 } else if (strcmp(node->name, GAIN_MIN_RAMP_MS) == 0) { 5467 gain->mGain.min_ramp_ms = atoi((char *)node->value); 5468 } else if (strcmp(node->name, GAIN_MAX_RAMP_MS) == 0) { 5469 gain->mGain.max_ramp_ms = atoi((char *)node->value); 5470 } 5471 node = node->next; 5472 } 5473 5474 ALOGV("loadGain() adding new gain mode %08x channel mask %08x min mB %d max mB %d", 5475 gain->mGain.mode, gain->mGain.channel_mask, gain->mGain.min_value, gain->mGain.max_value); 5476 5477 if (gain->mGain.mode == 0) { 5478 return; 5479 } 5480 mGains.add(gain); 5481} 5482 5483void AudioPolicyManager::AudioPort::loadGains(cnode *root) 5484{ 5485 cnode *node = root->first_child; 5486 int index = 0; 5487 while (node) { 5488 ALOGV("loadGains() loading gain %s", node->name); 5489 loadGain(node, index++); 5490 node = node->next; 5491 } 5492} 5493 5494status_t AudioPolicyManager::AudioPort::checkExactSamplingRate(uint32_t samplingRate) const 5495{ 5496 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 5497 if (mSamplingRates[i] == samplingRate) { 5498 return NO_ERROR; 5499 } 5500 } 5501 return BAD_VALUE; 5502} 5503 5504status_t AudioPolicyManager::AudioPort::checkCompatibleSamplingRate(uint32_t samplingRate, 5505 uint32_t *updatedSamplingRate) const 5506{ 5507 // Search for the closest supported sampling rate that is above (preferred) 5508 // or below (acceptable) the desired sampling rate, within a permitted ratio. 5509 // The sampling rates do not need to be sorted in ascending order. 5510 ssize_t maxBelow = -1; 5511 ssize_t minAbove = -1; 5512 uint32_t candidate; 5513 for (size_t i = 0; i < mSamplingRates.size(); i++) { 5514 candidate = mSamplingRates[i]; 5515 if (candidate == samplingRate) { 5516 if (updatedSamplingRate != NULL) { 5517 *updatedSamplingRate = candidate; 5518 } 5519 return NO_ERROR; 5520 } 5521 // candidate < desired 5522 if (candidate < samplingRate) { 5523 if (maxBelow < 0 || candidate > mSamplingRates[maxBelow]) { 5524 maxBelow = i; 5525 } 5526 // candidate > desired 5527 } else { 5528 if (minAbove < 0 || candidate < mSamplingRates[minAbove]) { 5529 minAbove = i; 5530 } 5531 } 5532 } 5533 // This uses hard-coded knowledge about AudioFlinger resampling ratios. 5534 // TODO Move these assumptions out. 5535 static const uint32_t kMaxDownSampleRatio = 6; // beyond this aliasing occurs 5536 static const uint32_t kMaxUpSampleRatio = 256; // beyond this sample rate inaccuracies occur 5537 // due to approximation by an int32_t of the 5538 // phase increments 5539 // Prefer to down-sample from a higher sampling rate, as we get the desired frequency spectrum. 5540 if (minAbove >= 0) { 5541 candidate = mSamplingRates[minAbove]; 5542 if (candidate / kMaxDownSampleRatio <= samplingRate) { 5543 if (updatedSamplingRate != NULL) { 5544 *updatedSamplingRate = candidate; 5545 } 5546 return NO_ERROR; 5547 } 5548 } 5549 // But if we have to up-sample from a lower sampling rate, that's OK. 5550 if (maxBelow >= 0) { 5551 candidate = mSamplingRates[maxBelow]; 5552 if (candidate * kMaxUpSampleRatio >= samplingRate) { 5553 if (updatedSamplingRate != NULL) { 5554 *updatedSamplingRate = candidate; 5555 } 5556 return NO_ERROR; 5557 } 5558 } 5559 // leave updatedSamplingRate unmodified 5560 return BAD_VALUE; 5561} 5562 5563status_t AudioPolicyManager::AudioPort::checkExactChannelMask(audio_channel_mask_t channelMask) const 5564{ 5565 for (size_t i = 0; i < mChannelMasks.size(); i++) { 5566 if (mChannelMasks[i] == channelMask) { 5567 return NO_ERROR; 5568 } 5569 } 5570 return BAD_VALUE; 5571} 5572 5573status_t AudioPolicyManager::AudioPort::checkCompatibleChannelMask(audio_channel_mask_t channelMask) 5574 const 5575{ 5576 const bool isRecordThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SINK; 5577 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 5578 // FIXME Does not handle multi-channel automatic conversions yet 5579 audio_channel_mask_t supported = mChannelMasks[i]; 5580 if (supported == channelMask) { 5581 return NO_ERROR; 5582 } 5583 if (isRecordThread) { 5584 // This uses hard-coded knowledge that AudioFlinger can silently down-mix and up-mix. 5585 // FIXME Abstract this out to a table. 5586 if (((supported == AUDIO_CHANNEL_IN_FRONT_BACK || supported == AUDIO_CHANNEL_IN_STEREO) 5587 && channelMask == AUDIO_CHANNEL_IN_MONO) || 5588 (supported == AUDIO_CHANNEL_IN_MONO && (channelMask == AUDIO_CHANNEL_IN_FRONT_BACK 5589 || channelMask == AUDIO_CHANNEL_IN_STEREO))) { 5590 return NO_ERROR; 5591 } 5592 } 5593 } 5594 return BAD_VALUE; 5595} 5596 5597status_t AudioPolicyManager::AudioPort::checkFormat(audio_format_t format) const 5598{ 5599 for (size_t i = 0; i < mFormats.size(); i ++) { 5600 if (mFormats[i] == format) { 5601 return NO_ERROR; 5602 } 5603 } 5604 return BAD_VALUE; 5605} 5606 5607 5608uint32_t AudioPolicyManager::AudioPort::pickSamplingRate() const 5609{ 5610 // special case for uninitialized dynamic profile 5611 if (mSamplingRates.size() == 1 && mSamplingRates[0] == 0) { 5612 return 0; 5613 } 5614 5615 uint32_t samplingRate = 0; 5616 uint32_t maxRate = MAX_MIXER_SAMPLING_RATE; 5617 5618 // For mixed output and inputs, use max mixer sampling rates. Do not 5619 // limit sampling rate otherwise 5620 if ((mType != AUDIO_PORT_TYPE_MIX) || 5621 ((mRole == AUDIO_PORT_ROLE_SOURCE) && 5622 (mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)))) { 5623 maxRate = UINT_MAX; 5624 } 5625 for (size_t i = 0; i < mSamplingRates.size(); i ++) { 5626 if ((mSamplingRates[i] > samplingRate) && (mSamplingRates[i] <= maxRate)) { 5627 samplingRate = mSamplingRates[i]; 5628 } 5629 } 5630 return samplingRate; 5631} 5632 5633audio_channel_mask_t AudioPolicyManager::AudioPort::pickChannelMask() const 5634{ 5635 // special case for uninitialized dynamic profile 5636 if (mChannelMasks.size() == 1 && mChannelMasks[0] == 0) { 5637 return AUDIO_CHANNEL_NONE; 5638 } 5639 5640 audio_channel_mask_t channelMask = AUDIO_CHANNEL_NONE; 5641 uint32_t channelCount = 0; 5642 uint32_t maxCount = MAX_MIXER_CHANNEL_COUNT; 5643 5644 // For mixed output and inputs, use max mixer channel count. Do not 5645 // limit channel count otherwise 5646 if ((mType != AUDIO_PORT_TYPE_MIX) || 5647 ((mRole == AUDIO_PORT_ROLE_SOURCE) && 5648 (mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)))) { 5649 maxCount = UINT_MAX; 5650 } 5651 for (size_t i = 0; i < mChannelMasks.size(); i ++) { 5652 uint32_t cnlCount; 5653 if (mUseInChannelMask) { 5654 cnlCount = audio_channel_count_from_in_mask(mChannelMasks[i]); 5655 } else { 5656 cnlCount = audio_channel_count_from_out_mask(mChannelMasks[i]); 5657 } 5658 if ((cnlCount > channelCount) && (cnlCount <= maxCount)) { 5659 channelMask = mChannelMasks[i]; 5660 } 5661 } 5662 return channelMask; 5663} 5664 5665/* format in order of increasing preference */ 5666const audio_format_t AudioPolicyManager::AudioPort::sPcmFormatCompareTable[] = { 5667 AUDIO_FORMAT_DEFAULT, 5668 AUDIO_FORMAT_PCM_16_BIT, 5669 AUDIO_FORMAT_PCM_8_24_BIT, 5670 AUDIO_FORMAT_PCM_24_BIT_PACKED, 5671 AUDIO_FORMAT_PCM_32_BIT, 5672 AUDIO_FORMAT_PCM_FLOAT, 5673}; 5674 5675int AudioPolicyManager::AudioPort::compareFormats(audio_format_t format1, 5676 audio_format_t format2) 5677{ 5678 // NOTE: AUDIO_FORMAT_INVALID is also considered not PCM and will be compared equal to any 5679 // compressed format and better than any PCM format. This is by design of pickFormat() 5680 if (!audio_is_linear_pcm(format1)) { 5681 if (!audio_is_linear_pcm(format2)) { 5682 return 0; 5683 } 5684 return 1; 5685 } 5686 if (!audio_is_linear_pcm(format2)) { 5687 return -1; 5688 } 5689 5690 int index1 = -1, index2 = -1; 5691 for (size_t i = 0; 5692 (i < ARRAY_SIZE(sPcmFormatCompareTable)) && ((index1 == -1) || (index2 == -1)); 5693 i ++) { 5694 if (sPcmFormatCompareTable[i] == format1) { 5695 index1 = i; 5696 } 5697 if (sPcmFormatCompareTable[i] == format2) { 5698 index2 = i; 5699 } 5700 } 5701 // format1 not found => index1 < 0 => format2 > format1 5702 // format2 not found => index2 < 0 => format2 < format1 5703 return index1 - index2; 5704} 5705 5706audio_format_t AudioPolicyManager::AudioPort::pickFormat() const 5707{ 5708 // special case for uninitialized dynamic profile 5709 if (mFormats.size() == 1 && mFormats[0] == 0) { 5710 return AUDIO_FORMAT_DEFAULT; 5711 } 5712 5713 audio_format_t format = AUDIO_FORMAT_DEFAULT; 5714 audio_format_t bestFormat = 5715 AudioPolicyManager::AudioPort::sPcmFormatCompareTable[ 5716 ARRAY_SIZE(AudioPolicyManager::AudioPort::sPcmFormatCompareTable) - 1]; 5717 // For mixed output and inputs, use best mixer output format. Do not 5718 // limit format otherwise 5719 if ((mType != AUDIO_PORT_TYPE_MIX) || 5720 ((mRole == AUDIO_PORT_ROLE_SOURCE) && 5721 (((mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)) != 0)))) { 5722 bestFormat = AUDIO_FORMAT_INVALID; 5723 } 5724 5725 for (size_t i = 0; i < mFormats.size(); i ++) { 5726 if ((compareFormats(mFormats[i], format) > 0) && 5727 (compareFormats(mFormats[i], bestFormat) <= 0)) { 5728 format = mFormats[i]; 5729 } 5730 } 5731 return format; 5732} 5733 5734status_t AudioPolicyManager::AudioPort::checkGain(const struct audio_gain_config *gainConfig, 5735 int index) const 5736{ 5737 if (index < 0 || (size_t)index >= mGains.size()) { 5738 return BAD_VALUE; 5739 } 5740 return mGains[index]->checkConfig(gainConfig); 5741} 5742 5743void AudioPolicyManager::AudioPort::dump(int fd, int spaces) const 5744{ 5745 const size_t SIZE = 256; 5746 char buffer[SIZE]; 5747 String8 result; 5748 5749 if (mName.size() != 0) { 5750 snprintf(buffer, SIZE, "%*s- name: %s\n", spaces, "", mName.string()); 5751 result.append(buffer); 5752 } 5753 5754 if (mSamplingRates.size() != 0) { 5755 snprintf(buffer, SIZE, "%*s- sampling rates: ", spaces, ""); 5756 result.append(buffer); 5757 for (size_t i = 0; i < mSamplingRates.size(); i++) { 5758 if (i == 0 && mSamplingRates[i] == 0) { 5759 snprintf(buffer, SIZE, "Dynamic"); 5760 } else { 5761 snprintf(buffer, SIZE, "%d", mSamplingRates[i]); 5762 } 5763 result.append(buffer); 5764 result.append(i == (mSamplingRates.size() - 1) ? "" : ", "); 5765 } 5766 result.append("\n"); 5767 } 5768 5769 if (mChannelMasks.size() != 0) { 5770 snprintf(buffer, SIZE, "%*s- channel masks: ", spaces, ""); 5771 result.append(buffer); 5772 for (size_t i = 0; i < mChannelMasks.size(); i++) { 5773 ALOGV("AudioPort::dump mChannelMasks %zu %08x", i, mChannelMasks[i]); 5774 5775 if (i == 0 && mChannelMasks[i] == 0) { 5776 snprintf(buffer, SIZE, "Dynamic"); 5777 } else { 5778 snprintf(buffer, SIZE, "0x%04x", mChannelMasks[i]); 5779 } 5780 result.append(buffer); 5781 result.append(i == (mChannelMasks.size() - 1) ? "" : ", "); 5782 } 5783 result.append("\n"); 5784 } 5785 5786 if (mFormats.size() != 0) { 5787 snprintf(buffer, SIZE, "%*s- formats: ", spaces, ""); 5788 result.append(buffer); 5789 for (size_t i = 0; i < mFormats.size(); i++) { 5790 const char *formatStr = enumToString(sFormatNameToEnumTable, 5791 ARRAY_SIZE(sFormatNameToEnumTable), 5792 mFormats[i]); 5793 if (i == 0 && strcmp(formatStr, "") == 0) { 5794 snprintf(buffer, SIZE, "Dynamic"); 5795 } else { 5796 snprintf(buffer, SIZE, "%s", formatStr); 5797 } 5798 result.append(buffer); 5799 result.append(i == (mFormats.size() - 1) ? "" : ", "); 5800 } 5801 result.append("\n"); 5802 } 5803 write(fd, result.string(), result.size()); 5804 if (mGains.size() != 0) { 5805 snprintf(buffer, SIZE, "%*s- gains:\n", spaces, ""); 5806 write(fd, buffer, strlen(buffer) + 1); 5807 result.append(buffer); 5808 for (size_t i = 0; i < mGains.size(); i++) { 5809 mGains[i]->dump(fd, spaces + 2, i); 5810 } 5811 } 5812} 5813 5814// --- AudioGain class implementation 5815 5816AudioPolicyManager::AudioGain::AudioGain(int index, bool useInChannelMask) 5817{ 5818 mIndex = index; 5819 mUseInChannelMask = useInChannelMask; 5820 memset(&mGain, 0, sizeof(struct audio_gain)); 5821} 5822 5823void AudioPolicyManager::AudioGain::getDefaultConfig(struct audio_gain_config *config) 5824{ 5825 config->index = mIndex; 5826 config->mode = mGain.mode; 5827 config->channel_mask = mGain.channel_mask; 5828 if ((mGain.mode & AUDIO_GAIN_MODE_JOINT) == AUDIO_GAIN_MODE_JOINT) { 5829 config->values[0] = mGain.default_value; 5830 } else { 5831 uint32_t numValues; 5832 if (mUseInChannelMask) { 5833 numValues = audio_channel_count_from_in_mask(mGain.channel_mask); 5834 } else { 5835 numValues = audio_channel_count_from_out_mask(mGain.channel_mask); 5836 } 5837 for (size_t i = 0; i < numValues; i++) { 5838 config->values[i] = mGain.default_value; 5839 } 5840 } 5841 if ((mGain.mode & AUDIO_GAIN_MODE_RAMP) == AUDIO_GAIN_MODE_RAMP) { 5842 config->ramp_duration_ms = mGain.min_ramp_ms; 5843 } 5844} 5845 5846status_t AudioPolicyManager::AudioGain::checkConfig(const struct audio_gain_config *config) 5847{ 5848 if ((config->mode & ~mGain.mode) != 0) { 5849 return BAD_VALUE; 5850 } 5851 if ((config->mode & AUDIO_GAIN_MODE_JOINT) == AUDIO_GAIN_MODE_JOINT) { 5852 if ((config->values[0] < mGain.min_value) || 5853 (config->values[0] > mGain.max_value)) { 5854 return BAD_VALUE; 5855 } 5856 } else { 5857 if ((config->channel_mask & ~mGain.channel_mask) != 0) { 5858 return BAD_VALUE; 5859 } 5860 uint32_t numValues; 5861 if (mUseInChannelMask) { 5862 numValues = audio_channel_count_from_in_mask(config->channel_mask); 5863 } else { 5864 numValues = audio_channel_count_from_out_mask(config->channel_mask); 5865 } 5866 for (size_t i = 0; i < numValues; i++) { 5867 if ((config->values[i] < mGain.min_value) || 5868 (config->values[i] > mGain.max_value)) { 5869 return BAD_VALUE; 5870 } 5871 } 5872 } 5873 if ((config->mode & AUDIO_GAIN_MODE_RAMP) == AUDIO_GAIN_MODE_RAMP) { 5874 if ((config->ramp_duration_ms < mGain.min_ramp_ms) || 5875 (config->ramp_duration_ms > mGain.max_ramp_ms)) { 5876 return BAD_VALUE; 5877 } 5878 } 5879 return NO_ERROR; 5880} 5881 5882void AudioPolicyManager::AudioGain::dump(int fd, int spaces, int index) const 5883{ 5884 const size_t SIZE = 256; 5885 char buffer[SIZE]; 5886 String8 result; 5887 5888 snprintf(buffer, SIZE, "%*sGain %d:\n", spaces, "", index+1); 5889 result.append(buffer); 5890 snprintf(buffer, SIZE, "%*s- mode: %08x\n", spaces, "", mGain.mode); 5891 result.append(buffer); 5892 snprintf(buffer, SIZE, "%*s- channel_mask: %08x\n", spaces, "", mGain.channel_mask); 5893 result.append(buffer); 5894 snprintf(buffer, SIZE, "%*s- min_value: %d mB\n", spaces, "", mGain.min_value); 5895 result.append(buffer); 5896 snprintf(buffer, SIZE, "%*s- max_value: %d mB\n", spaces, "", mGain.max_value); 5897 result.append(buffer); 5898 snprintf(buffer, SIZE, "%*s- default_value: %d mB\n", spaces, "", mGain.default_value); 5899 result.append(buffer); 5900 snprintf(buffer, SIZE, "%*s- step_value: %d mB\n", spaces, "", mGain.step_value); 5901 result.append(buffer); 5902 snprintf(buffer, SIZE, "%*s- min_ramp_ms: %d ms\n", spaces, "", mGain.min_ramp_ms); 5903 result.append(buffer); 5904 snprintf(buffer, SIZE, "%*s- max_ramp_ms: %d ms\n", spaces, "", mGain.max_ramp_ms); 5905 result.append(buffer); 5906 5907 write(fd, result.string(), result.size()); 5908} 5909 5910// --- AudioPortConfig class implementation 5911 5912AudioPolicyManager::AudioPortConfig::AudioPortConfig() 5913{ 5914 mSamplingRate = 0; 5915 mChannelMask = AUDIO_CHANNEL_NONE; 5916 mFormat = AUDIO_FORMAT_INVALID; 5917 mGain.index = -1; 5918} 5919 5920status_t AudioPolicyManager::AudioPortConfig::applyAudioPortConfig( 5921 const struct audio_port_config *config, 5922 struct audio_port_config *backupConfig) 5923{ 5924 struct audio_port_config localBackupConfig; 5925 status_t status = NO_ERROR; 5926 5927 localBackupConfig.config_mask = config->config_mask; 5928 toAudioPortConfig(&localBackupConfig); 5929 5930 if (mAudioPort == 0) { 5931 status = NO_INIT; 5932 goto exit; 5933 } 5934 if (config->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { 5935 status = mAudioPort->checkExactSamplingRate(config->sample_rate); 5936 if (status != NO_ERROR) { 5937 goto exit; 5938 } 5939 mSamplingRate = config->sample_rate; 5940 } 5941 if (config->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { 5942 status = mAudioPort->checkExactChannelMask(config->channel_mask); 5943 if (status != NO_ERROR) { 5944 goto exit; 5945 } 5946 mChannelMask = config->channel_mask; 5947 } 5948 if (config->config_mask & AUDIO_PORT_CONFIG_FORMAT) { 5949 status = mAudioPort->checkFormat(config->format); 5950 if (status != NO_ERROR) { 5951 goto exit; 5952 } 5953 mFormat = config->format; 5954 } 5955 if (config->config_mask & AUDIO_PORT_CONFIG_GAIN) { 5956 status = mAudioPort->checkGain(&config->gain, config->gain.index); 5957 if (status != NO_ERROR) { 5958 goto exit; 5959 } 5960 mGain = config->gain; 5961 } 5962 5963exit: 5964 if (status != NO_ERROR) { 5965 applyAudioPortConfig(&localBackupConfig); 5966 } 5967 if (backupConfig != NULL) { 5968 *backupConfig = localBackupConfig; 5969 } 5970 return status; 5971} 5972 5973void AudioPolicyManager::AudioPortConfig::toAudioPortConfig( 5974 struct audio_port_config *dstConfig, 5975 const struct audio_port_config *srcConfig) const 5976{ 5977 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { 5978 dstConfig->sample_rate = mSamplingRate; 5979 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE)) { 5980 dstConfig->sample_rate = srcConfig->sample_rate; 5981 } 5982 } else { 5983 dstConfig->sample_rate = 0; 5984 } 5985 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { 5986 dstConfig->channel_mask = mChannelMask; 5987 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK)) { 5988 dstConfig->channel_mask = srcConfig->channel_mask; 5989 } 5990 } else { 5991 dstConfig->channel_mask = AUDIO_CHANNEL_NONE; 5992 } 5993 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_FORMAT) { 5994 dstConfig->format = mFormat; 5995 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_FORMAT)) { 5996 dstConfig->format = srcConfig->format; 5997 } 5998 } else { 5999 dstConfig->format = AUDIO_FORMAT_INVALID; 6000 } 6001 if (dstConfig->config_mask & AUDIO_PORT_CONFIG_GAIN) { 6002 dstConfig->gain = mGain; 6003 if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_GAIN)) { 6004 dstConfig->gain = srcConfig->gain; 6005 } 6006 } else { 6007 dstConfig->gain.index = -1; 6008 } 6009 if (dstConfig->gain.index != -1) { 6010 dstConfig->config_mask |= AUDIO_PORT_CONFIG_GAIN; 6011 } else { 6012 dstConfig->config_mask &= ~AUDIO_PORT_CONFIG_GAIN; 6013 } 6014} 6015 6016// --- IOProfile class implementation 6017 6018AudioPolicyManager::IOProfile::IOProfile(const String8& name, audio_port_role_t role, 6019 const sp<HwModule>& module) 6020 : AudioPort(name, AUDIO_PORT_TYPE_MIX, role, module) 6021{ 6022} 6023 6024AudioPolicyManager::IOProfile::~IOProfile() 6025{ 6026} 6027 6028// checks if the IO profile is compatible with specified parameters. 6029// Sampling rate, format and channel mask must be specified in order to 6030// get a valid a match 6031bool AudioPolicyManager::IOProfile::isCompatibleProfile(audio_devices_t device, 6032 uint32_t samplingRate, 6033 uint32_t *updatedSamplingRate, 6034 audio_format_t format, 6035 audio_channel_mask_t channelMask, 6036 audio_output_flags_t flags) const 6037{ 6038 const bool isPlaybackThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SOURCE; 6039 const bool isRecordThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SINK; 6040 ALOG_ASSERT(isPlaybackThread != isRecordThread); 6041 6042 if ((mSupportedDevices.types() & device) != device) { 6043 return false; 6044 } 6045 6046 if (samplingRate == 0) { 6047 return false; 6048 } 6049 uint32_t myUpdatedSamplingRate = samplingRate; 6050 if (isPlaybackThread && checkExactSamplingRate(samplingRate) != NO_ERROR) { 6051 return false; 6052 } 6053 if (isRecordThread && checkCompatibleSamplingRate(samplingRate, &myUpdatedSamplingRate) != 6054 NO_ERROR) { 6055 return false; 6056 } 6057 6058 if (!audio_is_valid_format(format) || checkFormat(format) != NO_ERROR) { 6059 return false; 6060 } 6061 6062 if (isPlaybackThread && (!audio_is_output_channel(channelMask) || 6063 checkExactChannelMask(channelMask) != NO_ERROR)) { 6064 return false; 6065 } 6066 if (isRecordThread && (!audio_is_input_channel(channelMask) || 6067 checkCompatibleChannelMask(channelMask) != NO_ERROR)) { 6068 return false; 6069 } 6070 6071 if (isPlaybackThread && (mFlags & flags) != flags) { 6072 return false; 6073 } 6074 // The only input flag that is allowed to be different is the fast flag. 6075 // An existing fast stream is compatible with a normal track request. 6076 // An existing normal stream is compatible with a fast track request, 6077 // but the fast request will be denied by AudioFlinger and converted to normal track. 6078 if (isRecordThread && (((audio_input_flags_t) mFlags ^ (audio_input_flags_t) flags) & 6079 ~AUDIO_INPUT_FLAG_FAST)) { 6080 return false; 6081 } 6082 6083 if (updatedSamplingRate != NULL) { 6084 *updatedSamplingRate = myUpdatedSamplingRate; 6085 } 6086 return true; 6087} 6088 6089void AudioPolicyManager::IOProfile::dump(int fd) 6090{ 6091 const size_t SIZE = 256; 6092 char buffer[SIZE]; 6093 String8 result; 6094 6095 AudioPort::dump(fd, 4); 6096 6097 snprintf(buffer, SIZE, " - flags: 0x%04x\n", mFlags); 6098 result.append(buffer); 6099 snprintf(buffer, SIZE, " - devices:\n"); 6100 result.append(buffer); 6101 write(fd, result.string(), result.size()); 6102 for (size_t i = 0; i < mSupportedDevices.size(); i++) { 6103 mSupportedDevices[i]->dump(fd, 6, i); 6104 } 6105} 6106 6107void AudioPolicyManager::IOProfile::log() 6108{ 6109 const size_t SIZE = 256; 6110 char buffer[SIZE]; 6111 String8 result; 6112 6113 ALOGV(" - sampling rates: "); 6114 for (size_t i = 0; i < mSamplingRates.size(); i++) { 6115 ALOGV(" %d", mSamplingRates[i]); 6116 } 6117 6118 ALOGV(" - channel masks: "); 6119 for (size_t i = 0; i < mChannelMasks.size(); i++) { 6120 ALOGV(" 0x%04x", mChannelMasks[i]); 6121 } 6122 6123 ALOGV(" - formats: "); 6124 for (size_t i = 0; i < mFormats.size(); i++) { 6125 ALOGV(" 0x%08x", mFormats[i]); 6126 } 6127 6128 ALOGV(" - devices: 0x%04x\n", mSupportedDevices.types()); 6129 ALOGV(" - flags: 0x%04x\n", mFlags); 6130} 6131 6132 6133// --- DeviceDescriptor implementation 6134 6135 6136AudioPolicyManager::DeviceDescriptor::DeviceDescriptor(const String8& name, audio_devices_t type) : 6137 AudioPort(name, AUDIO_PORT_TYPE_DEVICE, 6138 audio_is_output_device(type) ? AUDIO_PORT_ROLE_SINK : 6139 AUDIO_PORT_ROLE_SOURCE, 6140 NULL), 6141 mDeviceType(type), mAddress(""), mId(0) 6142{ 6143 mAudioPort = this; 6144 if (mGains.size() > 0) { 6145 mGains[0]->getDefaultConfig(&mGain); 6146 } 6147} 6148 6149bool AudioPolicyManager::DeviceDescriptor::equals(const sp<DeviceDescriptor>& other) const 6150{ 6151 // Devices are considered equal if they: 6152 // - are of the same type (a device type cannot be AUDIO_DEVICE_NONE) 6153 // - have the same address or one device does not specify the address 6154 // - have the same channel mask or one device does not specify the channel mask 6155 return (mDeviceType == other->mDeviceType) && 6156 (mAddress == "" || other->mAddress == "" || mAddress == other->mAddress) && 6157 (mChannelMask == 0 || other->mChannelMask == 0 || 6158 mChannelMask == other->mChannelMask); 6159} 6160 6161void AudioPolicyManager::DeviceVector::refreshTypes() 6162{ 6163 mDeviceTypes = AUDIO_DEVICE_NONE; 6164 for(size_t i = 0; i < size(); i++) { 6165 mDeviceTypes |= itemAt(i)->mDeviceType; 6166 } 6167 ALOGV("DeviceVector::refreshTypes() mDeviceTypes %08x", mDeviceTypes); 6168} 6169 6170ssize_t AudioPolicyManager::DeviceVector::indexOf(const sp<DeviceDescriptor>& item) const 6171{ 6172 for(size_t i = 0; i < size(); i++) { 6173 if (item->equals(itemAt(i))) { 6174 return i; 6175 } 6176 } 6177 return -1; 6178} 6179 6180ssize_t AudioPolicyManager::DeviceVector::add(const sp<DeviceDescriptor>& item) 6181{ 6182 ssize_t ret = indexOf(item); 6183 6184 if (ret < 0) { 6185 ret = SortedVector::add(item); 6186 if (ret >= 0) { 6187 refreshTypes(); 6188 } 6189 } else { 6190 ALOGW("DeviceVector::add device %08x already in", item->mDeviceType); 6191 ret = -1; 6192 } 6193 return ret; 6194} 6195 6196ssize_t AudioPolicyManager::DeviceVector::remove(const sp<DeviceDescriptor>& item) 6197{ 6198 size_t i; 6199 ssize_t ret = indexOf(item); 6200 6201 if (ret < 0) { 6202 ALOGW("DeviceVector::remove device %08x not in", item->mDeviceType); 6203 } else { 6204 ret = SortedVector::removeAt(ret); 6205 if (ret >= 0) { 6206 refreshTypes(); 6207 } 6208 } 6209 return ret; 6210} 6211 6212void AudioPolicyManager::DeviceVector::loadDevicesFromType(audio_devices_t types) 6213{ 6214 DeviceVector deviceList; 6215 6216 uint32_t role_bit = AUDIO_DEVICE_BIT_IN & types; 6217 types &= ~role_bit; 6218 6219 while (types) { 6220 uint32_t i = 31 - __builtin_clz(types); 6221 uint32_t type = 1 << i; 6222 types &= ~type; 6223 add(new DeviceDescriptor(String8(""), type | role_bit)); 6224 } 6225} 6226 6227void AudioPolicyManager::DeviceVector::loadDevicesFromName(char *name, 6228 const DeviceVector& declaredDevices) 6229{ 6230 char *devName = strtok(name, "|"); 6231 while (devName != NULL) { 6232 if (strlen(devName) != 0) { 6233 audio_devices_t type = stringToEnum(sDeviceNameToEnumTable, 6234 ARRAY_SIZE(sDeviceNameToEnumTable), 6235 devName); 6236 if (type != AUDIO_DEVICE_NONE) { 6237 add(new DeviceDescriptor(String8(""), type)); 6238 } else { 6239 sp<DeviceDescriptor> deviceDesc = 6240 declaredDevices.getDeviceFromName(String8(devName)); 6241 if (deviceDesc != 0) { 6242 add(deviceDesc); 6243 } 6244 } 6245 } 6246 devName = strtok(NULL, "|"); 6247 } 6248} 6249 6250sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDevice( 6251 audio_devices_t type, String8 address) const 6252{ 6253 sp<DeviceDescriptor> device; 6254 for (size_t i = 0; i < size(); i++) { 6255 if (itemAt(i)->mDeviceType == type) { 6256 device = itemAt(i); 6257 if (itemAt(i)->mAddress = address) { 6258 break; 6259 } 6260 } 6261 } 6262 ALOGV("DeviceVector::getDevice() for type %d address %s found %p", 6263 type, address.string(), device.get()); 6264 return device; 6265} 6266 6267sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDeviceFromId( 6268 audio_port_handle_t id) const 6269{ 6270 sp<DeviceDescriptor> device; 6271 for (size_t i = 0; i < size(); i++) { 6272 ALOGV("DeviceVector::getDeviceFromId(%d) itemAt(%zu)->mId %d", id, i, itemAt(i)->mId); 6273 if (itemAt(i)->mId == id) { 6274 device = itemAt(i); 6275 break; 6276 } 6277 } 6278 return device; 6279} 6280 6281AudioPolicyManager::DeviceVector AudioPolicyManager::DeviceVector::getDevicesFromType( 6282 audio_devices_t type) const 6283{ 6284 DeviceVector devices; 6285 for (size_t i = 0; (i < size()) && (type != AUDIO_DEVICE_NONE); i++) { 6286 if (itemAt(i)->mDeviceType & type & ~AUDIO_DEVICE_BIT_IN) { 6287 devices.add(itemAt(i)); 6288 type &= ~itemAt(i)->mDeviceType; 6289 ALOGV("DeviceVector::getDevicesFromType() for type %x found %p", 6290 itemAt(i)->mDeviceType, itemAt(i).get()); 6291 } 6292 } 6293 return devices; 6294} 6295 6296AudioPolicyManager::DeviceVector AudioPolicyManager::DeviceVector::getDevicesFromTypeAddr( 6297 audio_devices_t type, String8 address) const 6298{ 6299 DeviceVector devices; 6300 //ALOGV(" looking for device=%x, addr=%s", type, address.string()); 6301 for (size_t i = 0; i < size(); i++) { 6302 //ALOGV(" at i=%d: device=%x, addr=%s", 6303 // i, itemAt(i)->mDeviceType, itemAt(i)->mAddress.string()); 6304 if (itemAt(i)->mDeviceType == type) { 6305 if (itemAt(i)->mAddress == address) { 6306 //ALOGV(" found matching address %s", address.string()); 6307 devices.add(itemAt(i)); 6308 } 6309 } 6310 } 6311 return devices; 6312} 6313 6314sp<AudioPolicyManager::DeviceDescriptor> AudioPolicyManager::DeviceVector::getDeviceFromName( 6315 const String8& name) const 6316{ 6317 sp<DeviceDescriptor> device; 6318 for (size_t i = 0; i < size(); i++) { 6319 if (itemAt(i)->mName == name) { 6320 device = itemAt(i); 6321 break; 6322 } 6323 } 6324 return device; 6325} 6326 6327void AudioPolicyManager::DeviceDescriptor::toAudioPortConfig( 6328 struct audio_port_config *dstConfig, 6329 const struct audio_port_config *srcConfig) const 6330{ 6331 dstConfig->config_mask = AUDIO_PORT_CONFIG_CHANNEL_MASK|AUDIO_PORT_CONFIG_GAIN; 6332 if (srcConfig != NULL) { 6333 dstConfig->config_mask |= srcConfig->config_mask; 6334 } 6335 6336 AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig); 6337 6338 dstConfig->id = mId; 6339 dstConfig->role = audio_is_output_device(mDeviceType) ? 6340 AUDIO_PORT_ROLE_SINK : AUDIO_PORT_ROLE_SOURCE; 6341 dstConfig->type = AUDIO_PORT_TYPE_DEVICE; 6342 dstConfig->ext.device.type = mDeviceType; 6343 dstConfig->ext.device.hw_module = mModule->mHandle; 6344 strncpy(dstConfig->ext.device.address, mAddress.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN); 6345} 6346 6347void AudioPolicyManager::DeviceDescriptor::toAudioPort(struct audio_port *port) const 6348{ 6349 ALOGV("DeviceDescriptor::toAudioPort() handle %d type %x", mId, mDeviceType); 6350 AudioPort::toAudioPort(port); 6351 port->id = mId; 6352 toAudioPortConfig(&port->active_config); 6353 port->ext.device.type = mDeviceType; 6354 port->ext.device.hw_module = mModule->mHandle; 6355 strncpy(port->ext.device.address, mAddress.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN); 6356} 6357 6358status_t AudioPolicyManager::DeviceDescriptor::dump(int fd, int spaces, int index) const 6359{ 6360 const size_t SIZE = 256; 6361 char buffer[SIZE]; 6362 String8 result; 6363 6364 snprintf(buffer, SIZE, "%*sDevice %d:\n", spaces, "", index+1); 6365 result.append(buffer); 6366 if (mId != 0) { 6367 snprintf(buffer, SIZE, "%*s- id: %2d\n", spaces, "", mId); 6368 result.append(buffer); 6369 } 6370 snprintf(buffer, SIZE, "%*s- type: %-48s\n", spaces, "", 6371 enumToString(sDeviceNameToEnumTable, 6372 ARRAY_SIZE(sDeviceNameToEnumTable), 6373 mDeviceType)); 6374 result.append(buffer); 6375 if (mAddress.size() != 0) { 6376 snprintf(buffer, SIZE, "%*s- address: %-32s\n", spaces, "", mAddress.string()); 6377 result.append(buffer); 6378 } 6379 write(fd, result.string(), result.size()); 6380 AudioPort::dump(fd, spaces); 6381 6382 return NO_ERROR; 6383} 6384 6385 6386// --- audio_policy.conf file parsing 6387 6388audio_output_flags_t AudioPolicyManager::parseFlagNames(char *name) 6389{ 6390 uint32_t flag = 0; 6391 6392 // it is OK to cast name to non const here as we are not going to use it after 6393 // strtok() modifies it 6394 char *flagName = strtok(name, "|"); 6395 while (flagName != NULL) { 6396 if (strlen(flagName) != 0) { 6397 flag |= stringToEnum(sFlagNameToEnumTable, 6398 ARRAY_SIZE(sFlagNameToEnumTable), 6399 flagName); 6400 } 6401 flagName = strtok(NULL, "|"); 6402 } 6403 //force direct flag if offload flag is set: offloading implies a direct output stream 6404 // and all common behaviors are driven by checking only the direct flag 6405 // this should normally be set appropriately in the policy configuration file 6406 if ((flag & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 6407 flag |= AUDIO_OUTPUT_FLAG_DIRECT; 6408 } 6409 6410 return (audio_output_flags_t)flag; 6411} 6412 6413audio_devices_t AudioPolicyManager::parseDeviceNames(char *name) 6414{ 6415 uint32_t device = 0; 6416 6417 char *devName = strtok(name, "|"); 6418 while (devName != NULL) { 6419 if (strlen(devName) != 0) { 6420 device |= stringToEnum(sDeviceNameToEnumTable, 6421 ARRAY_SIZE(sDeviceNameToEnumTable), 6422 devName); 6423 } 6424 devName = strtok(NULL, "|"); 6425 } 6426 return device; 6427} 6428 6429void AudioPolicyManager::loadHwModule(cnode *root) 6430{ 6431 status_t status = NAME_NOT_FOUND; 6432 cnode *node; 6433 sp<HwModule> module = new HwModule(root->name); 6434 6435 node = config_find(root, DEVICES_TAG); 6436 if (node != NULL) { 6437 node = node->first_child; 6438 while (node) { 6439 ALOGV("loadHwModule() loading device %s", node->name); 6440 status_t tmpStatus = module->loadDevice(node); 6441 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 6442 status = tmpStatus; 6443 } 6444 node = node->next; 6445 } 6446 } 6447 node = config_find(root, OUTPUTS_TAG); 6448 if (node != NULL) { 6449 node = node->first_child; 6450 while (node) { 6451 ALOGV("loadHwModule() loading output %s", node->name); 6452 status_t tmpStatus = module->loadOutput(node); 6453 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 6454 status = tmpStatus; 6455 } 6456 node = node->next; 6457 } 6458 } 6459 node = config_find(root, INPUTS_TAG); 6460 if (node != NULL) { 6461 node = node->first_child; 6462 while (node) { 6463 ALOGV("loadHwModule() loading input %s", node->name); 6464 status_t tmpStatus = module->loadInput(node); 6465 if (status == NAME_NOT_FOUND || status == NO_ERROR) { 6466 status = tmpStatus; 6467 } 6468 node = node->next; 6469 } 6470 } 6471 loadGlobalConfig(root, module); 6472 6473 if (status == NO_ERROR) { 6474 mHwModules.add(module); 6475 } 6476} 6477 6478void AudioPolicyManager::loadHwModules(cnode *root) 6479{ 6480 cnode *node = config_find(root, AUDIO_HW_MODULE_TAG); 6481 if (node == NULL) { 6482 return; 6483 } 6484 6485 node = node->first_child; 6486 while (node) { 6487 ALOGV("loadHwModules() loading module %s", node->name); 6488 loadHwModule(node); 6489 node = node->next; 6490 } 6491} 6492 6493void AudioPolicyManager::loadGlobalConfig(cnode *root, const sp<HwModule>& module) 6494{ 6495 cnode *node = config_find(root, GLOBAL_CONFIG_TAG); 6496 6497 if (node == NULL) { 6498 return; 6499 } 6500 DeviceVector declaredDevices; 6501 if (module != NULL) { 6502 declaredDevices = module->mDeclaredDevices; 6503 } 6504 6505 node = node->first_child; 6506 while (node) { 6507 if (strcmp(ATTACHED_OUTPUT_DEVICES_TAG, node->name) == 0) { 6508 mAvailableOutputDevices.loadDevicesFromName((char *)node->value, 6509 declaredDevices); 6510 ALOGV("loadGlobalConfig() Attached Output Devices %08x", 6511 mAvailableOutputDevices.types()); 6512 } else if (strcmp(DEFAULT_OUTPUT_DEVICE_TAG, node->name) == 0) { 6513 audio_devices_t device = (audio_devices_t)stringToEnum(sDeviceNameToEnumTable, 6514 ARRAY_SIZE(sDeviceNameToEnumTable), 6515 (char *)node->value); 6516 if (device != AUDIO_DEVICE_NONE) { 6517 mDefaultOutputDevice = new DeviceDescriptor(String8(""), device); 6518 } else { 6519 ALOGW("loadGlobalConfig() default device not specified"); 6520 } 6521 ALOGV("loadGlobalConfig() mDefaultOutputDevice %08x", mDefaultOutputDevice->mDeviceType); 6522 } else if (strcmp(ATTACHED_INPUT_DEVICES_TAG, node->name) == 0) { 6523 mAvailableInputDevices.loadDevicesFromName((char *)node->value, 6524 declaredDevices); 6525 ALOGV("loadGlobalConfig() Available InputDevices %08x", mAvailableInputDevices.types()); 6526 } else if (strcmp(SPEAKER_DRC_ENABLED_TAG, node->name) == 0) { 6527 mSpeakerDrcEnabled = stringToBool((char *)node->value); 6528 ALOGV("loadGlobalConfig() mSpeakerDrcEnabled = %d", mSpeakerDrcEnabled); 6529 } else if (strcmp(AUDIO_HAL_VERSION_TAG, node->name) == 0) { 6530 uint32_t major, minor; 6531 sscanf((char *)node->value, "%u.%u", &major, &minor); 6532 module->mHalVersion = HARDWARE_DEVICE_API_VERSION(major, minor); 6533 ALOGV("loadGlobalConfig() mHalVersion = %04x major %u minor %u", 6534 module->mHalVersion, major, minor); 6535 } 6536 node = node->next; 6537 } 6538} 6539 6540status_t AudioPolicyManager::loadAudioPolicyConfig(const char *path) 6541{ 6542 cnode *root; 6543 char *data; 6544 6545 data = (char *)load_file(path, NULL); 6546 if (data == NULL) { 6547 return -ENODEV; 6548 } 6549 root = config_node("", ""); 6550 config_load(root, data); 6551 6552 loadHwModules(root); 6553 // legacy audio_policy.conf files have one global_configuration section 6554 loadGlobalConfig(root, getModuleFromName(AUDIO_HARDWARE_MODULE_ID_PRIMARY)); 6555 config_free(root); 6556 free(root); 6557 free(data); 6558 6559 ALOGI("loadAudioPolicyConfig() loaded %s\n", path); 6560 6561 return NO_ERROR; 6562} 6563 6564void AudioPolicyManager::defaultAudioPolicyConfig(void) 6565{ 6566 sp<HwModule> module; 6567 sp<IOProfile> profile; 6568 sp<DeviceDescriptor> defaultInputDevice = new DeviceDescriptor(String8(""), 6569 AUDIO_DEVICE_IN_BUILTIN_MIC); 6570 mAvailableOutputDevices.add(mDefaultOutputDevice); 6571 mAvailableInputDevices.add(defaultInputDevice); 6572 6573 module = new HwModule("primary"); 6574 6575 profile = new IOProfile(String8("primary"), AUDIO_PORT_ROLE_SOURCE, module); 6576 profile->mSamplingRates.add(44100); 6577 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 6578 profile->mChannelMasks.add(AUDIO_CHANNEL_OUT_STEREO); 6579 profile->mSupportedDevices.add(mDefaultOutputDevice); 6580 profile->mFlags = AUDIO_OUTPUT_FLAG_PRIMARY; 6581 module->mOutputProfiles.add(profile); 6582 6583 profile = new IOProfile(String8("primary"), AUDIO_PORT_ROLE_SINK, module); 6584 profile->mSamplingRates.add(8000); 6585 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT); 6586 profile->mChannelMasks.add(AUDIO_CHANNEL_IN_MONO); 6587 profile->mSupportedDevices.add(defaultInputDevice); 6588 module->mInputProfiles.add(profile); 6589 6590 mHwModules.add(module); 6591} 6592 6593audio_stream_type_t AudioPolicyManager::streamTypefromAttributesInt(const audio_attributes_t *attr) 6594{ 6595 // flags to stream type mapping 6596 if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) { 6597 return AUDIO_STREAM_ENFORCED_AUDIBLE; 6598 } 6599 if ((attr->flags & AUDIO_FLAG_SCO) == AUDIO_FLAG_SCO) { 6600 return AUDIO_STREAM_BLUETOOTH_SCO; 6601 } 6602 6603 // usage to stream type mapping 6604 switch (attr->usage) { 6605 case AUDIO_USAGE_MEDIA: 6606 case AUDIO_USAGE_GAME: 6607 case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: 6608 case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: 6609 return AUDIO_STREAM_MUSIC; 6610 case AUDIO_USAGE_ASSISTANCE_SONIFICATION: 6611 return AUDIO_STREAM_SYSTEM; 6612 case AUDIO_USAGE_VOICE_COMMUNICATION: 6613 return AUDIO_STREAM_VOICE_CALL; 6614 6615 case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: 6616 return AUDIO_STREAM_DTMF; 6617 6618 case AUDIO_USAGE_ALARM: 6619 return AUDIO_STREAM_ALARM; 6620 case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: 6621 return AUDIO_STREAM_RING; 6622 6623 case AUDIO_USAGE_NOTIFICATION: 6624 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: 6625 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: 6626 case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: 6627 case AUDIO_USAGE_NOTIFICATION_EVENT: 6628 return AUDIO_STREAM_NOTIFICATION; 6629 6630 case AUDIO_USAGE_UNKNOWN: 6631 default: 6632 return AUDIO_STREAM_MUSIC; 6633 } 6634} 6635}; // namespace android 6636