IAudioPolicyService.cpp revision 96c7eed596077ff84e75b7b1c6f20c3a29219bd1
1/* 2** 3** Copyright 2009, The Android Open Source Project 4** 5** Licensed under the Apache License, Version 2.0 (the "License"); 6** you may not use this file except in compliance with the License. 7** You may obtain a copy of the License at 8** 9** http://www.apache.org/licenses/LICENSE-2.0 10** 11** Unless required by applicable law or agreed to in writing, software 12** distributed under the License is distributed on an "AS IS" BASIS, 13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14** See the License for the specific language governing permissions and 15** limitations under the License. 16*/ 17 18#define LOG_TAG "IAudioPolicyService" 19#include <utils/Log.h> 20 21#include <stdint.h> 22#include <math.h> 23#include <sys/types.h> 24 25#include <binder/IPCThreadState.h> 26#include <binder/Parcel.h> 27 28#include <media/AudioEffect.h> 29#include <media/IAudioPolicyService.h> 30#include <media/TimeCheck.h> 31#include <private/android_filesystem_config.h> 32#include <system/audio.h> 33 34namespace android { 35 36enum { 37 SET_DEVICE_CONNECTION_STATE = IBinder::FIRST_CALL_TRANSACTION, 38 GET_DEVICE_CONNECTION_STATE, 39 HANDLE_DEVICE_CONFIG_CHANGE, 40 SET_PHONE_STATE, 41 SET_RINGER_MODE, // reserved, no longer used 42 SET_FORCE_USE, 43 GET_FORCE_USE, 44 GET_OUTPUT, 45 START_OUTPUT, 46 STOP_OUTPUT, 47 RELEASE_OUTPUT, 48 GET_INPUT_FOR_ATTR, 49 START_INPUT, 50 STOP_INPUT, 51 RELEASE_INPUT, 52 INIT_STREAM_VOLUME, 53 SET_STREAM_VOLUME, 54 GET_STREAM_VOLUME, 55 GET_STRATEGY_FOR_STREAM, 56 GET_OUTPUT_FOR_EFFECT, 57 REGISTER_EFFECT, 58 UNREGISTER_EFFECT, 59 IS_STREAM_ACTIVE, 60 IS_SOURCE_ACTIVE, 61 GET_DEVICES_FOR_STREAM, 62 QUERY_DEFAULT_PRE_PROCESSING, 63 SET_EFFECT_ENABLED, 64 IS_STREAM_ACTIVE_REMOTELY, 65 IS_OFFLOAD_SUPPORTED, 66 LIST_AUDIO_PORTS, 67 GET_AUDIO_PORT, 68 CREATE_AUDIO_PATCH, 69 RELEASE_AUDIO_PATCH, 70 LIST_AUDIO_PATCHES, 71 SET_AUDIO_PORT_CONFIG, 72 REGISTER_CLIENT, 73 GET_OUTPUT_FOR_ATTR, 74 ACQUIRE_SOUNDTRIGGER_SESSION, 75 RELEASE_SOUNDTRIGGER_SESSION, 76 GET_PHONE_STATE, 77 REGISTER_POLICY_MIXES, 78 START_AUDIO_SOURCE, 79 STOP_AUDIO_SOURCE, 80 SET_AUDIO_PORT_CALLBACK_ENABLED, 81 SET_MASTER_MONO, 82 GET_MASTER_MONO, 83 GET_STREAM_VOLUME_DB 84}; 85 86#define MAX_ITEMS_PER_LIST 1024 87 88class BpAudioPolicyService : public BpInterface<IAudioPolicyService> 89{ 90public: 91 explicit BpAudioPolicyService(const sp<IBinder>& impl) 92 : BpInterface<IAudioPolicyService>(impl) 93 { 94 } 95 96 virtual status_t setDeviceConnectionState( 97 audio_devices_t device, 98 audio_policy_dev_state_t state, 99 const char *device_address, 100 const char *device_name) 101 { 102 Parcel data, reply; 103 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 104 data.writeInt32(static_cast <uint32_t>(device)); 105 data.writeInt32(static_cast <uint32_t>(state)); 106 data.writeCString(device_address); 107 data.writeCString(device_name); 108 remote()->transact(SET_DEVICE_CONNECTION_STATE, data, &reply); 109 return static_cast <status_t> (reply.readInt32()); 110 } 111 112 virtual audio_policy_dev_state_t getDeviceConnectionState( 113 audio_devices_t device, 114 const char *device_address) 115 { 116 Parcel data, reply; 117 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 118 data.writeInt32(static_cast <uint32_t>(device)); 119 data.writeCString(device_address); 120 remote()->transact(GET_DEVICE_CONNECTION_STATE, data, &reply); 121 return static_cast <audio_policy_dev_state_t>(reply.readInt32()); 122 } 123 124 virtual status_t handleDeviceConfigChange(audio_devices_t device, 125 const char *device_address, 126 const char *device_name) 127 { 128 Parcel data, reply; 129 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 130 data.writeInt32(static_cast <uint32_t>(device)); 131 data.writeCString(device_address); 132 data.writeCString(device_name); 133 remote()->transact(HANDLE_DEVICE_CONFIG_CHANGE, data, &reply); 134 return static_cast <status_t> (reply.readInt32()); 135 } 136 137 virtual status_t setPhoneState(audio_mode_t state) 138 { 139 Parcel data, reply; 140 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 141 data.writeInt32(state); 142 remote()->transact(SET_PHONE_STATE, data, &reply); 143 return static_cast <status_t> (reply.readInt32()); 144 } 145 146 virtual status_t setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config) 147 { 148 Parcel data, reply; 149 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 150 data.writeInt32(static_cast <uint32_t>(usage)); 151 data.writeInt32(static_cast <uint32_t>(config)); 152 remote()->transact(SET_FORCE_USE, data, &reply); 153 return static_cast <status_t> (reply.readInt32()); 154 } 155 156 virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage) 157 { 158 Parcel data, reply; 159 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 160 data.writeInt32(static_cast <uint32_t>(usage)); 161 remote()->transact(GET_FORCE_USE, data, &reply); 162 return static_cast <audio_policy_forced_cfg_t> (reply.readInt32()); 163 } 164 165 virtual audio_io_handle_t getOutput(audio_stream_type_t stream) 166 { 167 Parcel data, reply; 168 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 169 data.writeInt32(static_cast <uint32_t>(stream)); 170 remote()->transact(GET_OUTPUT, data, &reply); 171 return static_cast <audio_io_handle_t> (reply.readInt32()); 172 } 173 174 virtual status_t getOutputForAttr(const audio_attributes_t *attr, 175 audio_io_handle_t *output, 176 audio_session_t session, 177 audio_stream_type_t *stream, 178 pid_t pid, 179 uid_t uid, 180 const audio_config_t *config, 181 audio_output_flags_t flags, 182 audio_port_handle_t *selectedDeviceId, 183 audio_port_handle_t *portId) 184 { 185 Parcel data, reply; 186 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 187 if (attr == NULL) { 188 if (stream == NULL) { 189 ALOGE("getOutputForAttr(): NULL audio attributes and stream type"); 190 return BAD_VALUE; 191 } 192 if (*stream == AUDIO_STREAM_DEFAULT) { 193 ALOGE("getOutputForAttr unspecified stream type"); 194 return BAD_VALUE; 195 } 196 } 197 if (output == NULL) { 198 ALOGE("getOutputForAttr NULL output - shouldn't happen"); 199 return BAD_VALUE; 200 } 201 if (selectedDeviceId == NULL) { 202 ALOGE("getOutputForAttr NULL selectedDeviceId - shouldn't happen"); 203 return BAD_VALUE; 204 } 205 if (portId == NULL) { 206 ALOGE("getOutputForAttr NULL portId - shouldn't happen"); 207 return BAD_VALUE; 208 } 209 if (attr == NULL) { 210 data.writeInt32(0); 211 } else { 212 data.writeInt32(1); 213 data.write(attr, sizeof(audio_attributes_t)); 214 } 215 data.writeInt32(session); 216 if (stream == NULL) { 217 data.writeInt32(0); 218 } else { 219 data.writeInt32(1); 220 data.writeInt32(*stream); 221 } 222 data.writeInt32(pid); 223 data.writeInt32(uid); 224 data.write(config, sizeof(audio_config_t)); 225 data.writeInt32(static_cast <uint32_t>(flags)); 226 data.writeInt32(*selectedDeviceId); 227 data.writeInt32(*portId); 228 status_t status = remote()->transact(GET_OUTPUT_FOR_ATTR, data, &reply); 229 if (status != NO_ERROR) { 230 return status; 231 } 232 status = (status_t)reply.readInt32(); 233 if (status != NO_ERROR) { 234 return status; 235 } 236 *output = (audio_io_handle_t)reply.readInt32(); 237 audio_stream_type_t lStream = (audio_stream_type_t)reply.readInt32(); 238 if (stream != NULL) { 239 *stream = lStream; 240 } 241 *selectedDeviceId = (audio_port_handle_t)reply.readInt32(); 242 *portId = (audio_port_handle_t)reply.readInt32(); 243 return status; 244 } 245 246 virtual status_t startOutput(audio_io_handle_t output, 247 audio_stream_type_t stream, 248 audio_session_t session) 249 { 250 Parcel data, reply; 251 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 252 data.writeInt32(output); 253 data.writeInt32((int32_t) stream); 254 data.writeInt32((int32_t) session); 255 remote()->transact(START_OUTPUT, data, &reply); 256 return static_cast <status_t> (reply.readInt32()); 257 } 258 259 virtual status_t stopOutput(audio_io_handle_t output, 260 audio_stream_type_t stream, 261 audio_session_t session) 262 { 263 Parcel data, reply; 264 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 265 data.writeInt32(output); 266 data.writeInt32((int32_t) stream); 267 data.writeInt32((int32_t) session); 268 remote()->transact(STOP_OUTPUT, data, &reply); 269 return static_cast <status_t> (reply.readInt32()); 270 } 271 272 virtual void releaseOutput(audio_io_handle_t output, 273 audio_stream_type_t stream, 274 audio_session_t session) 275 { 276 Parcel data, reply; 277 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 278 data.writeInt32(output); 279 data.writeInt32((int32_t)stream); 280 data.writeInt32((int32_t)session); 281 remote()->transact(RELEASE_OUTPUT, data, &reply); 282 } 283 284 virtual status_t getInputForAttr(const audio_attributes_t *attr, 285 audio_io_handle_t *input, 286 audio_session_t session, 287 pid_t pid, 288 uid_t uid, 289 const String16& opPackageName, 290 const audio_config_base_t *config, 291 audio_input_flags_t flags, 292 audio_port_handle_t *selectedDeviceId, 293 audio_port_handle_t *portId) 294 { 295 Parcel data, reply; 296 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 297 if (attr == NULL) { 298 ALOGE("getInputForAttr NULL attr - shouldn't happen"); 299 return BAD_VALUE; 300 } 301 if (input == NULL) { 302 ALOGE("getInputForAttr NULL input - shouldn't happen"); 303 return BAD_VALUE; 304 } 305 if (selectedDeviceId == NULL) { 306 ALOGE("getInputForAttr NULL selectedDeviceId - shouldn't happen"); 307 return BAD_VALUE; 308 } 309 if (portId == NULL) { 310 ALOGE("getInputForAttr NULL portId - shouldn't happen"); 311 return BAD_VALUE; 312 } 313 data.write(attr, sizeof(audio_attributes_t)); 314 data.writeInt32(*input); 315 data.writeInt32(session); 316 data.writeInt32(pid); 317 data.writeInt32(uid); 318 data.writeString16(opPackageName); 319 data.write(config, sizeof(audio_config_base_t)); 320 data.writeInt32(flags); 321 data.writeInt32(*selectedDeviceId); 322 data.writeInt32(*portId); 323 status_t status = remote()->transact(GET_INPUT_FOR_ATTR, data, &reply); 324 if (status != NO_ERROR) { 325 return status; 326 } 327 status = reply.readInt32(); 328 if (status != NO_ERROR) { 329 return status; 330 } 331 *input = (audio_io_handle_t)reply.readInt32(); 332 *selectedDeviceId = (audio_port_handle_t)reply.readInt32(); 333 *portId = (audio_port_handle_t)reply.readInt32(); 334 return NO_ERROR; 335 } 336 337 virtual status_t startInput(audio_port_handle_t portId, 338 bool *silenced) 339 { 340 Parcel data, reply; 341 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 342 data.writeInt32(portId); 343 data.writeInt32(*silenced ? 1 : 0); 344 remote()->transact(START_INPUT, data, &reply); 345 status_t status = static_cast <status_t> (reply.readInt32()); 346 *silenced = reply.readInt32() == 1; 347 return status; 348 } 349 350 virtual status_t stopInput(audio_port_handle_t portId) 351 { 352 Parcel data, reply; 353 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 354 data.writeInt32(portId); 355 remote()->transact(STOP_INPUT, data, &reply); 356 return static_cast <status_t> (reply.readInt32()); 357 } 358 359 virtual void releaseInput(audio_port_handle_t portId) 360 { 361 Parcel data, reply; 362 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 363 data.writeInt32(portId); 364 remote()->transact(RELEASE_INPUT, data, &reply); 365 } 366 367 virtual status_t initStreamVolume(audio_stream_type_t stream, 368 int indexMin, 369 int indexMax) 370 { 371 Parcel data, reply; 372 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 373 data.writeInt32(static_cast <uint32_t>(stream)); 374 data.writeInt32(indexMin); 375 data.writeInt32(indexMax); 376 remote()->transact(INIT_STREAM_VOLUME, data, &reply); 377 return static_cast <status_t> (reply.readInt32()); 378 } 379 380 virtual status_t setStreamVolumeIndex(audio_stream_type_t stream, 381 int index, 382 audio_devices_t device) 383 { 384 Parcel data, reply; 385 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 386 data.writeInt32(static_cast <uint32_t>(stream)); 387 data.writeInt32(index); 388 data.writeInt32(static_cast <uint32_t>(device)); 389 remote()->transact(SET_STREAM_VOLUME, data, &reply); 390 return static_cast <status_t> (reply.readInt32()); 391 } 392 393 virtual status_t getStreamVolumeIndex(audio_stream_type_t stream, 394 int *index, 395 audio_devices_t device) 396 { 397 Parcel data, reply; 398 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 399 data.writeInt32(static_cast <uint32_t>(stream)); 400 data.writeInt32(static_cast <uint32_t>(device)); 401 402 remote()->transact(GET_STREAM_VOLUME, data, &reply); 403 int lIndex = reply.readInt32(); 404 if (index) *index = lIndex; 405 return static_cast <status_t> (reply.readInt32()); 406 } 407 408 virtual uint32_t getStrategyForStream(audio_stream_type_t stream) 409 { 410 Parcel data, reply; 411 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 412 data.writeInt32(static_cast <uint32_t>(stream)); 413 remote()->transact(GET_STRATEGY_FOR_STREAM, data, &reply); 414 return reply.readInt32(); 415 } 416 417 virtual audio_devices_t getDevicesForStream(audio_stream_type_t stream) 418 { 419 Parcel data, reply; 420 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 421 data.writeInt32(static_cast <uint32_t>(stream)); 422 remote()->transact(GET_DEVICES_FOR_STREAM, data, &reply); 423 return (audio_devices_t) reply.readInt32(); 424 } 425 426 virtual audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc) 427 { 428 Parcel data, reply; 429 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 430 data.write(desc, sizeof(effect_descriptor_t)); 431 remote()->transact(GET_OUTPUT_FOR_EFFECT, data, &reply); 432 return static_cast <audio_io_handle_t> (reply.readInt32()); 433 } 434 435 virtual status_t registerEffect(const effect_descriptor_t *desc, 436 audio_io_handle_t io, 437 uint32_t strategy, 438 audio_session_t session, 439 int id) 440 { 441 Parcel data, reply; 442 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 443 data.write(desc, sizeof(effect_descriptor_t)); 444 data.writeInt32(io); 445 data.writeInt32(strategy); 446 data.writeInt32(session); 447 data.writeInt32(id); 448 remote()->transact(REGISTER_EFFECT, data, &reply); 449 return static_cast <status_t> (reply.readInt32()); 450 } 451 452 virtual status_t unregisterEffect(int id) 453 { 454 Parcel data, reply; 455 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 456 data.writeInt32(id); 457 remote()->transact(UNREGISTER_EFFECT, data, &reply); 458 return static_cast <status_t> (reply.readInt32()); 459 } 460 461 virtual status_t setEffectEnabled(int id, bool enabled) 462 { 463 Parcel data, reply; 464 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 465 data.writeInt32(id); 466 data.writeInt32(enabled); 467 remote()->transact(SET_EFFECT_ENABLED, data, &reply); 468 return static_cast <status_t> (reply.readInt32()); 469 } 470 471 virtual bool isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const 472 { 473 Parcel data, reply; 474 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 475 data.writeInt32((int32_t) stream); 476 data.writeInt32(inPastMs); 477 remote()->transact(IS_STREAM_ACTIVE, data, &reply); 478 return reply.readInt32(); 479 } 480 481 virtual bool isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs) const 482 { 483 Parcel data, reply; 484 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 485 data.writeInt32((int32_t) stream); 486 data.writeInt32(inPastMs); 487 remote()->transact(IS_STREAM_ACTIVE_REMOTELY, data, &reply); 488 return reply.readInt32(); 489 } 490 491 virtual bool isSourceActive(audio_source_t source) const 492 { 493 Parcel data, reply; 494 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 495 data.writeInt32((int32_t) source); 496 remote()->transact(IS_SOURCE_ACTIVE, data, &reply); 497 return reply.readInt32(); 498 } 499 500 virtual status_t queryDefaultPreProcessing(audio_session_t audioSession, 501 effect_descriptor_t *descriptors, 502 uint32_t *count) 503 { 504 if (descriptors == NULL || count == NULL) { 505 return BAD_VALUE; 506 } 507 Parcel data, reply; 508 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 509 data.writeInt32(audioSession); 510 data.writeInt32(*count); 511 status_t status = remote()->transact(QUERY_DEFAULT_PRE_PROCESSING, data, &reply); 512 if (status != NO_ERROR) { 513 return status; 514 } 515 status = static_cast <status_t> (reply.readInt32()); 516 uint32_t retCount = reply.readInt32(); 517 if (retCount != 0) { 518 uint32_t numDesc = (retCount < *count) ? retCount : *count; 519 reply.read(descriptors, sizeof(effect_descriptor_t) * numDesc); 520 } 521 *count = retCount; 522 return status; 523 } 524 525 virtual bool isOffloadSupported(const audio_offload_info_t& info) 526 { 527 Parcel data, reply; 528 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 529 data.write(&info, sizeof(audio_offload_info_t)); 530 remote()->transact(IS_OFFLOAD_SUPPORTED, data, &reply); 531 return reply.readInt32(); 532 } 533 534 virtual status_t listAudioPorts(audio_port_role_t role, 535 audio_port_type_t type, 536 unsigned int *num_ports, 537 struct audio_port *ports, 538 unsigned int *generation) 539 { 540 if (num_ports == NULL || (*num_ports != 0 && ports == NULL) || 541 generation == NULL) { 542 return BAD_VALUE; 543 } 544 Parcel data, reply; 545 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 546 unsigned int numPortsReq = (ports == NULL) ? 0 : *num_ports; 547 data.writeInt32(role); 548 data.writeInt32(type); 549 data.writeInt32(numPortsReq); 550 status_t status = remote()->transact(LIST_AUDIO_PORTS, data, &reply); 551 if (status == NO_ERROR) { 552 status = (status_t)reply.readInt32(); 553 *num_ports = (unsigned int)reply.readInt32(); 554 } 555 if (status == NO_ERROR) { 556 if (numPortsReq > *num_ports) { 557 numPortsReq = *num_ports; 558 } 559 if (numPortsReq > 0) { 560 reply.read(ports, numPortsReq * sizeof(struct audio_port)); 561 } 562 *generation = reply.readInt32(); 563 } 564 return status; 565 } 566 567 virtual status_t getAudioPort(struct audio_port *port) 568 { 569 if (port == NULL) { 570 return BAD_VALUE; 571 } 572 Parcel data, reply; 573 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 574 data.write(port, sizeof(struct audio_port)); 575 status_t status = remote()->transact(GET_AUDIO_PORT, data, &reply); 576 if (status != NO_ERROR || 577 (status = (status_t)reply.readInt32()) != NO_ERROR) { 578 return status; 579 } 580 reply.read(port, sizeof(struct audio_port)); 581 return status; 582 } 583 584 virtual status_t createAudioPatch(const struct audio_patch *patch, 585 audio_patch_handle_t *handle) 586 { 587 if (patch == NULL || handle == NULL) { 588 return BAD_VALUE; 589 } 590 Parcel data, reply; 591 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 592 data.write(patch, sizeof(struct audio_patch)); 593 data.write(handle, sizeof(audio_patch_handle_t)); 594 status_t status = remote()->transact(CREATE_AUDIO_PATCH, data, &reply); 595 if (status != NO_ERROR || 596 (status = (status_t)reply.readInt32()) != NO_ERROR) { 597 return status; 598 } 599 reply.read(handle, sizeof(audio_patch_handle_t)); 600 return status; 601 } 602 603 virtual status_t releaseAudioPatch(audio_patch_handle_t handle) 604 { 605 Parcel data, reply; 606 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 607 data.write(&handle, sizeof(audio_patch_handle_t)); 608 status_t status = remote()->transact(RELEASE_AUDIO_PATCH, data, &reply); 609 if (status != NO_ERROR) { 610 status = (status_t)reply.readInt32(); 611 } 612 return status; 613 } 614 615 virtual status_t listAudioPatches(unsigned int *num_patches, 616 struct audio_patch *patches, 617 unsigned int *generation) 618 { 619 if (num_patches == NULL || (*num_patches != 0 && patches == NULL) || 620 generation == NULL) { 621 return BAD_VALUE; 622 } 623 Parcel data, reply; 624 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 625 unsigned int numPatchesReq = (patches == NULL) ? 0 : *num_patches; 626 data.writeInt32(numPatchesReq); 627 status_t status = remote()->transact(LIST_AUDIO_PATCHES, data, &reply); 628 if (status == NO_ERROR) { 629 status = (status_t)reply.readInt32(); 630 *num_patches = (unsigned int)reply.readInt32(); 631 } 632 if (status == NO_ERROR) { 633 if (numPatchesReq > *num_patches) { 634 numPatchesReq = *num_patches; 635 } 636 if (numPatchesReq > 0) { 637 reply.read(patches, numPatchesReq * sizeof(struct audio_patch)); 638 } 639 *generation = reply.readInt32(); 640 } 641 return status; 642 } 643 644 virtual status_t setAudioPortConfig(const struct audio_port_config *config) 645 { 646 if (config == NULL) { 647 return BAD_VALUE; 648 } 649 Parcel data, reply; 650 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 651 data.write(config, sizeof(struct audio_port_config)); 652 status_t status = remote()->transact(SET_AUDIO_PORT_CONFIG, data, &reply); 653 if (status != NO_ERROR) { 654 status = (status_t)reply.readInt32(); 655 } 656 return status; 657 } 658 659 virtual void registerClient(const sp<IAudioPolicyServiceClient>& client) 660 { 661 Parcel data, reply; 662 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 663 data.writeStrongBinder(IInterface::asBinder(client)); 664 remote()->transact(REGISTER_CLIENT, data, &reply); 665 } 666 667 virtual void setAudioPortCallbacksEnabled(bool enabled) 668 { 669 Parcel data, reply; 670 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 671 data.writeInt32(enabled ? 1 : 0); 672 remote()->transact(SET_AUDIO_PORT_CALLBACK_ENABLED, data, &reply); 673 } 674 675 virtual status_t acquireSoundTriggerSession(audio_session_t *session, 676 audio_io_handle_t *ioHandle, 677 audio_devices_t *device) 678 { 679 if (session == NULL || ioHandle == NULL || device == NULL) { 680 return BAD_VALUE; 681 } 682 Parcel data, reply; 683 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 684 status_t status = remote()->transact(ACQUIRE_SOUNDTRIGGER_SESSION, data, &reply); 685 if (status != NO_ERROR) { 686 return status; 687 } 688 status = (status_t)reply.readInt32(); 689 if (status == NO_ERROR) { 690 *session = (audio_session_t)reply.readInt32(); 691 *ioHandle = (audio_io_handle_t)reply.readInt32(); 692 *device = (audio_devices_t)reply.readInt32(); 693 } 694 return status; 695 } 696 697 virtual status_t releaseSoundTriggerSession(audio_session_t session) 698 { 699 Parcel data, reply; 700 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 701 data.writeInt32(session); 702 status_t status = remote()->transact(RELEASE_SOUNDTRIGGER_SESSION, data, &reply); 703 if (status != NO_ERROR) { 704 return status; 705 } 706 return (status_t)reply.readInt32(); 707 } 708 709 virtual audio_mode_t getPhoneState() 710 { 711 Parcel data, reply; 712 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 713 status_t status = remote()->transact(GET_PHONE_STATE, data, &reply); 714 if (status != NO_ERROR) { 715 return AUDIO_MODE_INVALID; 716 } 717 return (audio_mode_t)reply.readInt32(); 718 } 719 720 virtual status_t registerPolicyMixes(const Vector<AudioMix>& mixes, bool registration) 721 { 722 Parcel data, reply; 723 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 724 data.writeInt32(registration ? 1 : 0); 725 size_t size = mixes.size(); 726 if (size > MAX_MIXES_PER_POLICY) { 727 size = MAX_MIXES_PER_POLICY; 728 } 729 size_t sizePosition = data.dataPosition(); 730 data.writeInt32(size); 731 size_t finalSize = size; 732 for (size_t i = 0; i < size; i++) { 733 size_t position = data.dataPosition(); 734 if (mixes[i].writeToParcel(&data) != NO_ERROR) { 735 data.setDataPosition(position); 736 finalSize--; 737 } 738 } 739 if (size != finalSize) { 740 size_t position = data.dataPosition(); 741 data.setDataPosition(sizePosition); 742 data.writeInt32(finalSize); 743 data.setDataPosition(position); 744 } 745 status_t status = remote()->transact(REGISTER_POLICY_MIXES, data, &reply); 746 if (status == NO_ERROR) { 747 status = (status_t)reply.readInt32(); 748 } 749 return status; 750 } 751 752 virtual status_t startAudioSource(const struct audio_port_config *source, 753 const audio_attributes_t *attributes, 754 audio_patch_handle_t *handle) 755 { 756 Parcel data, reply; 757 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 758 if (source == NULL || attributes == NULL || handle == NULL) { 759 return BAD_VALUE; 760 } 761 data.write(source, sizeof(struct audio_port_config)); 762 data.write(attributes, sizeof(audio_attributes_t)); 763 status_t status = remote()->transact(START_AUDIO_SOURCE, data, &reply); 764 if (status != NO_ERROR) { 765 return status; 766 } 767 status = (status_t)reply.readInt32(); 768 if (status != NO_ERROR) { 769 return status; 770 } 771 *handle = (audio_patch_handle_t)reply.readInt32(); 772 return status; 773 } 774 775 virtual status_t stopAudioSource(audio_patch_handle_t handle) 776 { 777 Parcel data, reply; 778 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 779 data.writeInt32(handle); 780 status_t status = remote()->transact(STOP_AUDIO_SOURCE, data, &reply); 781 if (status != NO_ERROR) { 782 return status; 783 } 784 status = (status_t)reply.readInt32(); 785 return status; 786 } 787 788 virtual status_t setMasterMono(bool mono) 789 { 790 Parcel data, reply; 791 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 792 data.writeInt32(static_cast<int32_t>(mono)); 793 status_t status = remote()->transact(SET_MASTER_MONO, data, &reply); 794 if (status != NO_ERROR) { 795 return status; 796 } 797 return static_cast<status_t>(reply.readInt32()); 798 } 799 800 virtual status_t getMasterMono(bool *mono) 801 { 802 if (mono == nullptr) { 803 return BAD_VALUE; 804 } 805 Parcel data, reply; 806 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 807 808 status_t status = remote()->transact(GET_MASTER_MONO, data, &reply); 809 if (status != NO_ERROR) { 810 return status; 811 } 812 status = static_cast<status_t>(reply.readInt32()); 813 if (status == NO_ERROR) { 814 *mono = static_cast<bool>(reply.readInt32()); 815 } 816 return status; 817 } 818 819 virtual float getStreamVolumeDB(audio_stream_type_t stream, int index, audio_devices_t device) 820 { 821 Parcel data, reply; 822 data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); 823 data.writeInt32(static_cast <int32_t>(stream)); 824 data.writeInt32(static_cast <int32_t>(index)); 825 data.writeUint32(static_cast <uint32_t>(device)); 826 status_t status = remote()->transact(GET_STREAM_VOLUME_DB, data, &reply); 827 if (status != NO_ERROR) { 828 return NAN; 829 } 830 return reply.readFloat(); 831 } 832}; 833 834IMPLEMENT_META_INTERFACE(AudioPolicyService, "android.media.IAudioPolicyService"); 835 836// ---------------------------------------------------------------------- 837 838status_t BnAudioPolicyService::onTransact( 839 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 840{ 841 // make sure transactions reserved to AudioFlinger do not come from other processes 842 switch (code) { 843 case START_OUTPUT: 844 case STOP_OUTPUT: 845 case RELEASE_OUTPUT: 846 case GET_INPUT_FOR_ATTR: 847 case START_INPUT: 848 case STOP_INPUT: 849 case RELEASE_INPUT: 850 case GET_STRATEGY_FOR_STREAM: 851 case GET_OUTPUT_FOR_EFFECT: 852 case REGISTER_EFFECT: 853 case UNREGISTER_EFFECT: 854 case SET_EFFECT_ENABLED: 855 case GET_OUTPUT_FOR_ATTR: 856 case ACQUIRE_SOUNDTRIGGER_SESSION: 857 case RELEASE_SOUNDTRIGGER_SESSION: 858 ALOGW("%s: transaction %d received from PID %d", 859 __func__, code, IPCThreadState::self()->getCallingPid()); 860 return INVALID_OPERATION; 861 default: 862 break; 863 } 864 865 // make sure the following transactions come from system components 866 switch (code) { 867 case SET_DEVICE_CONNECTION_STATE: 868 case HANDLE_DEVICE_CONFIG_CHANGE: 869 case SET_PHONE_STATE: 870 case SET_RINGER_MODE: 871 case SET_FORCE_USE: 872 case INIT_STREAM_VOLUME: 873 case SET_STREAM_VOLUME: 874 case REGISTER_POLICY_MIXES: 875 case SET_MASTER_MONO: { 876 uid_t multiUserClientUid = IPCThreadState::self()->getCallingUid() % AID_USER_OFFSET; 877 if (multiUserClientUid >= AID_APP_START) { 878 ALOGW("%s: transaction %d received from PID %d unauthorized UID %d", 879 __func__, code, IPCThreadState::self()->getCallingPid(), 880 IPCThreadState::self()->getCallingUid()); 881 return INVALID_OPERATION; 882 } 883 } break; 884 default: 885 break; 886 } 887 888 TimeCheck check("IAudioPolicyService"); 889 890 switch (code) { 891 case SET_DEVICE_CONNECTION_STATE: { 892 CHECK_INTERFACE(IAudioPolicyService, data, reply); 893 audio_devices_t device = 894 static_cast <audio_devices_t>(data.readInt32()); 895 audio_policy_dev_state_t state = 896 static_cast <audio_policy_dev_state_t>(data.readInt32()); 897 const char *device_address = data.readCString(); 898 const char *device_name = data.readCString(); 899 if (device_address == nullptr || device_name == nullptr) { 900 ALOGE("Bad Binder transaction: SET_DEVICE_CONNECTION_STATE for device %u", device); 901 reply->writeInt32(static_cast<int32_t> (BAD_VALUE)); 902 } else { 903 reply->writeInt32(static_cast<uint32_t> (setDeviceConnectionState(device, 904 state, 905 device_address, 906 device_name))); 907 } 908 return NO_ERROR; 909 } break; 910 911 case GET_DEVICE_CONNECTION_STATE: { 912 CHECK_INTERFACE(IAudioPolicyService, data, reply); 913 audio_devices_t device = 914 static_cast<audio_devices_t> (data.readInt32()); 915 const char *device_address = data.readCString(); 916 if (device_address == nullptr) { 917 ALOGE("Bad Binder transaction: GET_DEVICE_CONNECTION_STATE for device %u", device); 918 reply->writeInt32(static_cast<int32_t> (AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE)); 919 } else { 920 reply->writeInt32(static_cast<uint32_t> (getDeviceConnectionState(device, 921 device_address))); 922 } 923 return NO_ERROR; 924 } break; 925 926 case HANDLE_DEVICE_CONFIG_CHANGE: { 927 CHECK_INTERFACE(IAudioPolicyService, data, reply); 928 audio_devices_t device = 929 static_cast <audio_devices_t>(data.readInt32()); 930 const char *device_address = data.readCString(); 931 const char *device_name = data.readCString(); 932 if (device_address == nullptr || device_name == nullptr) { 933 ALOGE("Bad Binder transaction: HANDLE_DEVICE_CONFIG_CHANGE for device %u", device); 934 reply->writeInt32(static_cast<int32_t> (BAD_VALUE)); 935 } else { 936 reply->writeInt32(static_cast<uint32_t> (handleDeviceConfigChange(device, 937 device_address, 938 device_name))); 939 } 940 return NO_ERROR; 941 } break; 942 943 case SET_PHONE_STATE: { 944 CHECK_INTERFACE(IAudioPolicyService, data, reply); 945 reply->writeInt32(static_cast <uint32_t>(setPhoneState( 946 (audio_mode_t) data.readInt32()))); 947 return NO_ERROR; 948 } break; 949 950 case SET_FORCE_USE: { 951 CHECK_INTERFACE(IAudioPolicyService, data, reply); 952 audio_policy_force_use_t usage = static_cast <audio_policy_force_use_t>( 953 data.readInt32()); 954 audio_policy_forced_cfg_t config = 955 static_cast <audio_policy_forced_cfg_t>(data.readInt32()); 956 reply->writeInt32(static_cast <uint32_t>(setForceUse(usage, config))); 957 return NO_ERROR; 958 } break; 959 960 case GET_FORCE_USE: { 961 CHECK_INTERFACE(IAudioPolicyService, data, reply); 962 audio_policy_force_use_t usage = static_cast <audio_policy_force_use_t>( 963 data.readInt32()); 964 reply->writeInt32(static_cast <uint32_t>(getForceUse(usage))); 965 return NO_ERROR; 966 } break; 967 968 case GET_OUTPUT: { 969 CHECK_INTERFACE(IAudioPolicyService, data, reply); 970 audio_stream_type_t stream = 971 static_cast <audio_stream_type_t>(data.readInt32()); 972 audio_io_handle_t output = getOutput(stream); 973 reply->writeInt32(static_cast <int>(output)); 974 return NO_ERROR; 975 } break; 976 977 case GET_OUTPUT_FOR_ATTR: { 978 CHECK_INTERFACE(IAudioPolicyService, data, reply); 979 audio_attributes_t attr; 980 bool hasAttributes = data.readInt32() != 0; 981 if (hasAttributes) { 982 data.read(&attr, sizeof(audio_attributes_t)); 983 sanetizeAudioAttributes(&attr); 984 } 985 audio_session_t session = (audio_session_t)data.readInt32(); 986 audio_stream_type_t stream = AUDIO_STREAM_DEFAULT; 987 bool hasStream = data.readInt32() != 0; 988 if (hasStream) { 989 stream = (audio_stream_type_t)data.readInt32(); 990 } 991 pid_t pid = (pid_t)data.readInt32(); 992 uid_t uid = (uid_t)data.readInt32(); 993 audio_config_t config; 994 memset(&config, 0, sizeof(audio_config_t)); 995 data.read(&config, sizeof(audio_config_t)); 996 audio_output_flags_t flags = 997 static_cast <audio_output_flags_t>(data.readInt32()); 998 audio_port_handle_t selectedDeviceId = data.readInt32(); 999 audio_port_handle_t portId = (audio_port_handle_t)data.readInt32(); 1000 audio_io_handle_t output = 0; 1001 status_t status = getOutputForAttr(hasAttributes ? &attr : NULL, 1002 &output, session, &stream, pid, uid, 1003 &config, 1004 flags, &selectedDeviceId, &portId); 1005 reply->writeInt32(status); 1006 reply->writeInt32(output); 1007 reply->writeInt32(stream); 1008 reply->writeInt32(selectedDeviceId); 1009 reply->writeInt32(portId); 1010 return NO_ERROR; 1011 } break; 1012 1013 case START_OUTPUT: { 1014 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1015 audio_io_handle_t output = static_cast <audio_io_handle_t>(data.readInt32()); 1016 audio_stream_type_t stream = 1017 static_cast <audio_stream_type_t>(data.readInt32()); 1018 audio_session_t session = (audio_session_t)data.readInt32(); 1019 reply->writeInt32(static_cast <uint32_t>(startOutput(output, 1020 stream, 1021 session))); 1022 return NO_ERROR; 1023 } break; 1024 1025 case STOP_OUTPUT: { 1026 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1027 audio_io_handle_t output = static_cast <audio_io_handle_t>(data.readInt32()); 1028 audio_stream_type_t stream = 1029 static_cast <audio_stream_type_t>(data.readInt32()); 1030 audio_session_t session = (audio_session_t)data.readInt32(); 1031 reply->writeInt32(static_cast <uint32_t>(stopOutput(output, 1032 stream, 1033 session))); 1034 return NO_ERROR; 1035 } break; 1036 1037 case RELEASE_OUTPUT: { 1038 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1039 audio_io_handle_t output = static_cast <audio_io_handle_t>(data.readInt32()); 1040 audio_stream_type_t stream = (audio_stream_type_t)data.readInt32(); 1041 audio_session_t session = (audio_session_t)data.readInt32(); 1042 releaseOutput(output, stream, session); 1043 return NO_ERROR; 1044 } break; 1045 1046 case GET_INPUT_FOR_ATTR: { 1047 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1048 audio_attributes_t attr; 1049 data.read(&attr, sizeof(audio_attributes_t)); 1050 sanetizeAudioAttributes(&attr); 1051 audio_io_handle_t input = (audio_io_handle_t)data.readInt32(); 1052 audio_session_t session = (audio_session_t)data.readInt32(); 1053 pid_t pid = (pid_t)data.readInt32(); 1054 uid_t uid = (uid_t)data.readInt32(); 1055 const String16 opPackageName = data.readString16(); 1056 audio_config_base_t config; 1057 memset(&config, 0, sizeof(audio_config_base_t)); 1058 data.read(&config, sizeof(audio_config_base_t)); 1059 audio_input_flags_t flags = (audio_input_flags_t) data.readInt32(); 1060 audio_port_handle_t selectedDeviceId = (audio_port_handle_t) data.readInt32(); 1061 audio_port_handle_t portId = (audio_port_handle_t)data.readInt32(); 1062 status_t status = getInputForAttr(&attr, &input, session, pid, uid, 1063 opPackageName, &config, 1064 flags, &selectedDeviceId, &portId); 1065 reply->writeInt32(status); 1066 if (status == NO_ERROR) { 1067 reply->writeInt32(input); 1068 reply->writeInt32(selectedDeviceId); 1069 reply->writeInt32(portId); 1070 } 1071 return NO_ERROR; 1072 } break; 1073 1074 case START_INPUT: { 1075 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1076 audio_port_handle_t portId = static_cast <audio_port_handle_t>(data.readInt32()); 1077 bool silenced = data.readInt32() == 1; 1078 status_t status = startInput(portId, &silenced); 1079 reply->writeInt32(static_cast <uint32_t>(status)); 1080 reply->writeInt32(silenced ? 1 : 0); 1081 return NO_ERROR; 1082 } break; 1083 1084 case STOP_INPUT: { 1085 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1086 audio_port_handle_t portId = static_cast <audio_port_handle_t>(data.readInt32()); 1087 reply->writeInt32(static_cast <uint32_t>(stopInput(portId))); 1088 return NO_ERROR; 1089 } break; 1090 1091 case RELEASE_INPUT: { 1092 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1093 audio_port_handle_t portId = static_cast <audio_port_handle_t>(data.readInt32()); 1094 releaseInput(portId); 1095 return NO_ERROR; 1096 } break; 1097 1098 case INIT_STREAM_VOLUME: { 1099 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1100 audio_stream_type_t stream = 1101 static_cast <audio_stream_type_t>(data.readInt32()); 1102 int indexMin = data.readInt32(); 1103 int indexMax = data.readInt32(); 1104 reply->writeInt32(static_cast <uint32_t>(initStreamVolume(stream, indexMin,indexMax))); 1105 return NO_ERROR; 1106 } break; 1107 1108 case SET_STREAM_VOLUME: { 1109 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1110 audio_stream_type_t stream = 1111 static_cast <audio_stream_type_t>(data.readInt32()); 1112 int index = data.readInt32(); 1113 audio_devices_t device = static_cast <audio_devices_t>(data.readInt32()); 1114 reply->writeInt32(static_cast <uint32_t>(setStreamVolumeIndex(stream, 1115 index, 1116 device))); 1117 return NO_ERROR; 1118 } break; 1119 1120 case GET_STREAM_VOLUME: { 1121 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1122 audio_stream_type_t stream = 1123 static_cast <audio_stream_type_t>(data.readInt32()); 1124 audio_devices_t device = static_cast <audio_devices_t>(data.readInt32()); 1125 int index = 0; 1126 status_t status = getStreamVolumeIndex(stream, &index, device); 1127 reply->writeInt32(index); 1128 reply->writeInt32(static_cast <uint32_t>(status)); 1129 return NO_ERROR; 1130 } break; 1131 1132 case GET_STRATEGY_FOR_STREAM: { 1133 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1134 audio_stream_type_t stream = 1135 static_cast <audio_stream_type_t>(data.readInt32()); 1136 reply->writeInt32(getStrategyForStream(stream)); 1137 return NO_ERROR; 1138 } break; 1139 1140 case GET_DEVICES_FOR_STREAM: { 1141 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1142 audio_stream_type_t stream = 1143 static_cast <audio_stream_type_t>(data.readInt32()); 1144 reply->writeInt32(static_cast <int>(getDevicesForStream(stream))); 1145 return NO_ERROR; 1146 } break; 1147 1148 case GET_OUTPUT_FOR_EFFECT: { 1149 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1150 effect_descriptor_t desc; 1151 data.read(&desc, sizeof(effect_descriptor_t)); 1152 audio_io_handle_t output = getOutputForEffect(&desc); 1153 reply->writeInt32(static_cast <int>(output)); 1154 return NO_ERROR; 1155 } break; 1156 1157 case REGISTER_EFFECT: { 1158 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1159 effect_descriptor_t desc; 1160 data.read(&desc, sizeof(effect_descriptor_t)); 1161 audio_io_handle_t io = data.readInt32(); 1162 uint32_t strategy = data.readInt32(); 1163 audio_session_t session = (audio_session_t) data.readInt32(); 1164 int id = data.readInt32(); 1165 reply->writeInt32(static_cast <int32_t>(registerEffect(&desc, 1166 io, 1167 strategy, 1168 session, 1169 id))); 1170 return NO_ERROR; 1171 } break; 1172 1173 case UNREGISTER_EFFECT: { 1174 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1175 int id = data.readInt32(); 1176 reply->writeInt32(static_cast <int32_t>(unregisterEffect(id))); 1177 return NO_ERROR; 1178 } break; 1179 1180 case SET_EFFECT_ENABLED: { 1181 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1182 int id = data.readInt32(); 1183 bool enabled = static_cast <bool>(data.readInt32()); 1184 reply->writeInt32(static_cast <int32_t>(setEffectEnabled(id, enabled))); 1185 return NO_ERROR; 1186 } break; 1187 1188 case IS_STREAM_ACTIVE: { 1189 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1190 audio_stream_type_t stream = (audio_stream_type_t) data.readInt32(); 1191 uint32_t inPastMs = (uint32_t)data.readInt32(); 1192 reply->writeInt32( isStreamActive(stream, inPastMs) ); 1193 return NO_ERROR; 1194 } break; 1195 1196 case IS_STREAM_ACTIVE_REMOTELY: { 1197 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1198 audio_stream_type_t stream = (audio_stream_type_t) data.readInt32(); 1199 uint32_t inPastMs = (uint32_t)data.readInt32(); 1200 reply->writeInt32( isStreamActiveRemotely(stream, inPastMs) ); 1201 return NO_ERROR; 1202 } break; 1203 1204 case IS_SOURCE_ACTIVE: { 1205 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1206 audio_source_t source = (audio_source_t) data.readInt32(); 1207 reply->writeInt32( isSourceActive(source)); 1208 return NO_ERROR; 1209 } 1210 1211 case QUERY_DEFAULT_PRE_PROCESSING: { 1212 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1213 audio_session_t audioSession = (audio_session_t) data.readInt32(); 1214 uint32_t count = data.readInt32(); 1215 if (count > AudioEffect::kMaxPreProcessing) { 1216 count = AudioEffect::kMaxPreProcessing; 1217 } 1218 uint32_t retCount = count; 1219 effect_descriptor_t *descriptors = new effect_descriptor_t[count]; 1220 status_t status = queryDefaultPreProcessing(audioSession, descriptors, &retCount); 1221 reply->writeInt32(status); 1222 if (status != NO_ERROR && status != NO_MEMORY) { 1223 retCount = 0; 1224 } 1225 reply->writeInt32(retCount); 1226 if (retCount != 0) { 1227 if (retCount < count) { 1228 count = retCount; 1229 } 1230 reply->write(descriptors, sizeof(effect_descriptor_t) * count); 1231 } 1232 delete[] descriptors; 1233 return status; 1234 } 1235 1236 case IS_OFFLOAD_SUPPORTED: { 1237 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1238 audio_offload_info_t info; 1239 data.read(&info, sizeof(audio_offload_info_t)); 1240 bool isSupported = isOffloadSupported(info); 1241 reply->writeInt32(isSupported); 1242 return NO_ERROR; 1243 } 1244 1245 case LIST_AUDIO_PORTS: { 1246 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1247 audio_port_role_t role = (audio_port_role_t)data.readInt32(); 1248 audio_port_type_t type = (audio_port_type_t)data.readInt32(); 1249 unsigned int numPortsReq = data.readInt32(); 1250 if (numPortsReq > MAX_ITEMS_PER_LIST) { 1251 numPortsReq = MAX_ITEMS_PER_LIST; 1252 } 1253 unsigned int numPorts = numPortsReq; 1254 struct audio_port *ports = 1255 (struct audio_port *)calloc(numPortsReq, sizeof(struct audio_port)); 1256 if (ports == NULL) { 1257 reply->writeInt32(NO_MEMORY); 1258 reply->writeInt32(0); 1259 return NO_ERROR; 1260 } 1261 unsigned int generation; 1262 status_t status = listAudioPorts(role, type, &numPorts, ports, &generation); 1263 reply->writeInt32(status); 1264 reply->writeInt32(numPorts); 1265 1266 if (status == NO_ERROR) { 1267 if (numPortsReq > numPorts) { 1268 numPortsReq = numPorts; 1269 } 1270 reply->write(ports, numPortsReq * sizeof(struct audio_port)); 1271 reply->writeInt32(generation); 1272 } 1273 free(ports); 1274 return NO_ERROR; 1275 } 1276 1277 case GET_AUDIO_PORT: { 1278 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1279 struct audio_port port = {}; 1280 if (data.read(&port, sizeof(struct audio_port)) != NO_ERROR) { 1281 ALOGE("b/23912202"); 1282 } 1283 status_t status = getAudioPort(&port); 1284 reply->writeInt32(status); 1285 if (status == NO_ERROR) { 1286 reply->write(&port, sizeof(struct audio_port)); 1287 } 1288 return NO_ERROR; 1289 } 1290 1291 case CREATE_AUDIO_PATCH: { 1292 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1293 struct audio_patch patch; 1294 data.read(&patch, sizeof(struct audio_patch)); 1295 audio_patch_handle_t handle = AUDIO_PATCH_HANDLE_NONE; 1296 if (data.read(&handle, sizeof(audio_patch_handle_t)) != NO_ERROR) { 1297 ALOGE("b/23912202"); 1298 } 1299 status_t status = createAudioPatch(&patch, &handle); 1300 reply->writeInt32(status); 1301 if (status == NO_ERROR) { 1302 reply->write(&handle, sizeof(audio_patch_handle_t)); 1303 } 1304 return NO_ERROR; 1305 } 1306 1307 case RELEASE_AUDIO_PATCH: { 1308 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1309 audio_patch_handle_t handle; 1310 data.read(&handle, sizeof(audio_patch_handle_t)); 1311 status_t status = releaseAudioPatch(handle); 1312 reply->writeInt32(status); 1313 return NO_ERROR; 1314 } 1315 1316 case LIST_AUDIO_PATCHES: { 1317 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1318 unsigned int numPatchesReq = data.readInt32(); 1319 if (numPatchesReq > MAX_ITEMS_PER_LIST) { 1320 numPatchesReq = MAX_ITEMS_PER_LIST; 1321 } 1322 unsigned int numPatches = numPatchesReq; 1323 struct audio_patch *patches = 1324 (struct audio_patch *)calloc(numPatchesReq, 1325 sizeof(struct audio_patch)); 1326 if (patches == NULL) { 1327 reply->writeInt32(NO_MEMORY); 1328 reply->writeInt32(0); 1329 return NO_ERROR; 1330 } 1331 unsigned int generation; 1332 status_t status = listAudioPatches(&numPatches, patches, &generation); 1333 reply->writeInt32(status); 1334 reply->writeInt32(numPatches); 1335 if (status == NO_ERROR) { 1336 if (numPatchesReq > numPatches) { 1337 numPatchesReq = numPatches; 1338 } 1339 reply->write(patches, numPatchesReq * sizeof(struct audio_patch)); 1340 reply->writeInt32(generation); 1341 } 1342 free(patches); 1343 return NO_ERROR; 1344 } 1345 1346 case SET_AUDIO_PORT_CONFIG: { 1347 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1348 struct audio_port_config config; 1349 data.read(&config, sizeof(struct audio_port_config)); 1350 status_t status = setAudioPortConfig(&config); 1351 reply->writeInt32(status); 1352 return NO_ERROR; 1353 } 1354 1355 case REGISTER_CLIENT: { 1356 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1357 sp<IAudioPolicyServiceClient> client = interface_cast<IAudioPolicyServiceClient>( 1358 data.readStrongBinder()); 1359 registerClient(client); 1360 return NO_ERROR; 1361 } break; 1362 1363 case SET_AUDIO_PORT_CALLBACK_ENABLED: { 1364 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1365 setAudioPortCallbacksEnabled(data.readInt32() == 1); 1366 return NO_ERROR; 1367 } break; 1368 1369 case ACQUIRE_SOUNDTRIGGER_SESSION: { 1370 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1371 sp<IAudioPolicyServiceClient> client = interface_cast<IAudioPolicyServiceClient>( 1372 data.readStrongBinder()); 1373 audio_session_t session = AUDIO_SESSION_NONE; 1374 audio_io_handle_t ioHandle = AUDIO_IO_HANDLE_NONE; 1375 audio_devices_t device = AUDIO_DEVICE_NONE; 1376 status_t status = acquireSoundTriggerSession(&session, &ioHandle, &device); 1377 reply->writeInt32(status); 1378 if (status == NO_ERROR) { 1379 reply->writeInt32(session); 1380 reply->writeInt32(ioHandle); 1381 reply->writeInt32(device); 1382 } 1383 return NO_ERROR; 1384 } break; 1385 1386 case RELEASE_SOUNDTRIGGER_SESSION: { 1387 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1388 sp<IAudioPolicyServiceClient> client = interface_cast<IAudioPolicyServiceClient>( 1389 data.readStrongBinder()); 1390 audio_session_t session = (audio_session_t)data.readInt32(); 1391 status_t status = releaseSoundTriggerSession(session); 1392 reply->writeInt32(status); 1393 return NO_ERROR; 1394 } break; 1395 1396 case GET_PHONE_STATE: { 1397 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1398 reply->writeInt32((int32_t)getPhoneState()); 1399 return NO_ERROR; 1400 } break; 1401 1402 case REGISTER_POLICY_MIXES: { 1403 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1404 bool registration = data.readInt32() == 1; 1405 Vector<AudioMix> mixes; 1406 size_t size = (size_t)data.readInt32(); 1407 if (size > MAX_MIXES_PER_POLICY) { 1408 size = MAX_MIXES_PER_POLICY; 1409 } 1410 for (size_t i = 0; i < size; i++) { 1411 AudioMix mix; 1412 if (mix.readFromParcel((Parcel*)&data) == NO_ERROR) { 1413 mixes.add(mix); 1414 } 1415 } 1416 status_t status = registerPolicyMixes(mixes, registration); 1417 reply->writeInt32(status); 1418 return NO_ERROR; 1419 } break; 1420 1421 case START_AUDIO_SOURCE: { 1422 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1423 struct audio_port_config source; 1424 data.read(&source, sizeof(struct audio_port_config)); 1425 audio_attributes_t attributes; 1426 data.read(&attributes, sizeof(audio_attributes_t)); 1427 sanetizeAudioAttributes(&attributes); 1428 audio_patch_handle_t handle = AUDIO_PATCH_HANDLE_NONE; 1429 status_t status = startAudioSource(&source, &attributes, &handle); 1430 reply->writeInt32(status); 1431 reply->writeInt32(handle); 1432 return NO_ERROR; 1433 } break; 1434 1435 case STOP_AUDIO_SOURCE: { 1436 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1437 audio_patch_handle_t handle = (audio_patch_handle_t) data.readInt32(); 1438 status_t status = stopAudioSource(handle); 1439 reply->writeInt32(status); 1440 return NO_ERROR; 1441 } break; 1442 1443 case SET_MASTER_MONO: { 1444 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1445 bool mono = static_cast<bool>(data.readInt32()); 1446 status_t status = setMasterMono(mono); 1447 reply->writeInt32(status); 1448 return NO_ERROR; 1449 } break; 1450 1451 case GET_MASTER_MONO: { 1452 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1453 bool mono; 1454 status_t status = getMasterMono(&mono); 1455 reply->writeInt32(status); 1456 if (status == NO_ERROR) { 1457 reply->writeInt32(static_cast<int32_t>(mono)); 1458 } 1459 return NO_ERROR; 1460 } break; 1461 1462 case GET_STREAM_VOLUME_DB: { 1463 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1464 audio_stream_type_t stream = 1465 static_cast <audio_stream_type_t>(data.readInt32()); 1466 int index = static_cast <int>(data.readInt32()); 1467 audio_devices_t device = 1468 static_cast <audio_devices_t>(data.readUint32()); 1469 reply->writeFloat(getStreamVolumeDB(stream, index, device)); 1470 return NO_ERROR; 1471 } 1472 1473 default: 1474 return BBinder::onTransact(code, data, reply, flags); 1475 } 1476} 1477 1478void BnAudioPolicyService::sanetizeAudioAttributes(audio_attributes_t* attr) 1479{ 1480 const size_t tagsMaxSize = AUDIO_ATTRIBUTES_TAGS_MAX_SIZE; 1481 if (strnlen(attr->tags, tagsMaxSize) >= tagsMaxSize) { 1482 android_errorWriteLog(0x534e4554, "68953950"); // SafetyNet logging 1483 } 1484 attr->tags[tagsMaxSize - 1] = '\0'; 1485} 1486 1487// ---------------------------------------------------------------------------- 1488 1489} // namespace android 1490