IAudioPolicyService.cpp revision da6a5a80b402fa0d836240d7e05cd887080c4f4d
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#include <cutils/multiuser.h> 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 status only for non void methods 861 switch (code) { 862 case RELEASE_OUTPUT: 863 case RELEASE_INPUT: 864 break; 865 default: 866 reply->writeInt32(static_cast<int32_t> (INVALID_OPERATION)); 867 break; 868 } 869 return OK; 870 default: 871 break; 872 } 873 874 // make sure the following transactions come from system components 875 switch (code) { 876 case SET_DEVICE_CONNECTION_STATE: 877 case HANDLE_DEVICE_CONFIG_CHANGE: 878 case SET_PHONE_STATE: 879 case SET_FORCE_USE: 880 case INIT_STREAM_VOLUME: 881 case SET_STREAM_VOLUME: 882 case REGISTER_POLICY_MIXES: 883 case SET_MASTER_MONO: 884 case START_AUDIO_SOURCE: 885 case STOP_AUDIO_SOURCE: { 886 if (multiuser_get_app_id(IPCThreadState::self()->getCallingUid()) >= AID_APP_START) { 887 ALOGW("%s: transaction %d received from PID %d unauthorized UID %d", 888 __func__, code, IPCThreadState::self()->getCallingPid(), 889 IPCThreadState::self()->getCallingUid()); 890 reply->writeInt32(static_cast<int32_t> (INVALID_OPERATION)); 891 return OK; 892 } 893 } break; 894 default: 895 break; 896 } 897 898 TimeCheck check("IAudioPolicyService"); 899 900 switch (code) { 901 case SET_DEVICE_CONNECTION_STATE: { 902 CHECK_INTERFACE(IAudioPolicyService, data, reply); 903 audio_devices_t device = 904 static_cast <audio_devices_t>(data.readInt32()); 905 audio_policy_dev_state_t state = 906 static_cast <audio_policy_dev_state_t>(data.readInt32()); 907 const char *device_address = data.readCString(); 908 const char *device_name = data.readCString(); 909 if (device_address == nullptr || device_name == nullptr) { 910 ALOGE("Bad Binder transaction: SET_DEVICE_CONNECTION_STATE for device %u", device); 911 reply->writeInt32(static_cast<int32_t> (BAD_VALUE)); 912 } else { 913 reply->writeInt32(static_cast<uint32_t> (setDeviceConnectionState(device, 914 state, 915 device_address, 916 device_name))); 917 } 918 return NO_ERROR; 919 } break; 920 921 case GET_DEVICE_CONNECTION_STATE: { 922 CHECK_INTERFACE(IAudioPolicyService, data, reply); 923 audio_devices_t device = 924 static_cast<audio_devices_t> (data.readInt32()); 925 const char *device_address = data.readCString(); 926 if (device_address == nullptr) { 927 ALOGE("Bad Binder transaction: GET_DEVICE_CONNECTION_STATE for device %u", device); 928 reply->writeInt32(static_cast<int32_t> (AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE)); 929 } else { 930 reply->writeInt32(static_cast<uint32_t> (getDeviceConnectionState(device, 931 device_address))); 932 } 933 return NO_ERROR; 934 } break; 935 936 case HANDLE_DEVICE_CONFIG_CHANGE: { 937 CHECK_INTERFACE(IAudioPolicyService, data, reply); 938 audio_devices_t device = 939 static_cast <audio_devices_t>(data.readInt32()); 940 const char *device_address = data.readCString(); 941 const char *device_name = data.readCString(); 942 if (device_address == nullptr || device_name == nullptr) { 943 ALOGE("Bad Binder transaction: HANDLE_DEVICE_CONFIG_CHANGE for device %u", device); 944 reply->writeInt32(static_cast<int32_t> (BAD_VALUE)); 945 } else { 946 reply->writeInt32(static_cast<uint32_t> (handleDeviceConfigChange(device, 947 device_address, 948 device_name))); 949 } 950 return NO_ERROR; 951 } break; 952 953 case SET_PHONE_STATE: { 954 CHECK_INTERFACE(IAudioPolicyService, data, reply); 955 reply->writeInt32(static_cast <uint32_t>(setPhoneState( 956 (audio_mode_t) data.readInt32()))); 957 return NO_ERROR; 958 } break; 959 960 case SET_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 audio_policy_forced_cfg_t config = 965 static_cast <audio_policy_forced_cfg_t>(data.readInt32()); 966 reply->writeInt32(static_cast <uint32_t>(setForceUse(usage, config))); 967 return NO_ERROR; 968 } break; 969 970 case GET_FORCE_USE: { 971 CHECK_INTERFACE(IAudioPolicyService, data, reply); 972 audio_policy_force_use_t usage = static_cast <audio_policy_force_use_t>( 973 data.readInt32()); 974 reply->writeInt32(static_cast <uint32_t>(getForceUse(usage))); 975 return NO_ERROR; 976 } break; 977 978 case GET_OUTPUT: { 979 CHECK_INTERFACE(IAudioPolicyService, data, reply); 980 audio_stream_type_t stream = 981 static_cast <audio_stream_type_t>(data.readInt32()); 982 audio_io_handle_t output = getOutput(stream); 983 reply->writeInt32(static_cast <int>(output)); 984 return NO_ERROR; 985 } break; 986 987 case GET_OUTPUT_FOR_ATTR: { 988 CHECK_INTERFACE(IAudioPolicyService, data, reply); 989 audio_attributes_t attr = {}; 990 bool hasAttributes = data.readInt32() != 0; 991 if (hasAttributes) { 992 data.read(&attr, sizeof(audio_attributes_t)); 993 sanetizeAudioAttributes(&attr); 994 } 995 audio_session_t session = (audio_session_t)data.readInt32(); 996 audio_stream_type_t stream = AUDIO_STREAM_DEFAULT; 997 bool hasStream = data.readInt32() != 0; 998 if (hasStream) { 999 stream = (audio_stream_type_t)data.readInt32(); 1000 } 1001 pid_t pid = (pid_t)data.readInt32(); 1002 uid_t uid = (uid_t)data.readInt32(); 1003 audio_config_t config; 1004 memset(&config, 0, sizeof(audio_config_t)); 1005 data.read(&config, sizeof(audio_config_t)); 1006 audio_output_flags_t flags = 1007 static_cast <audio_output_flags_t>(data.readInt32()); 1008 audio_port_handle_t selectedDeviceId = data.readInt32(); 1009 audio_port_handle_t portId = (audio_port_handle_t)data.readInt32(); 1010 audio_io_handle_t output = 0; 1011 status_t status = getOutputForAttr(hasAttributes ? &attr : NULL, 1012 &output, session, &stream, pid, uid, 1013 &config, 1014 flags, &selectedDeviceId, &portId); 1015 reply->writeInt32(status); 1016 reply->writeInt32(output); 1017 reply->writeInt32(stream); 1018 reply->writeInt32(selectedDeviceId); 1019 reply->writeInt32(portId); 1020 return NO_ERROR; 1021 } break; 1022 1023 case START_OUTPUT: { 1024 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1025 audio_io_handle_t output = static_cast <audio_io_handle_t>(data.readInt32()); 1026 audio_stream_type_t stream = 1027 static_cast <audio_stream_type_t>(data.readInt32()); 1028 audio_session_t session = (audio_session_t)data.readInt32(); 1029 reply->writeInt32(static_cast <uint32_t>(startOutput(output, 1030 stream, 1031 session))); 1032 return NO_ERROR; 1033 } break; 1034 1035 case STOP_OUTPUT: { 1036 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1037 audio_io_handle_t output = static_cast <audio_io_handle_t>(data.readInt32()); 1038 audio_stream_type_t stream = 1039 static_cast <audio_stream_type_t>(data.readInt32()); 1040 audio_session_t session = (audio_session_t)data.readInt32(); 1041 reply->writeInt32(static_cast <uint32_t>(stopOutput(output, 1042 stream, 1043 session))); 1044 return NO_ERROR; 1045 } break; 1046 1047 case RELEASE_OUTPUT: { 1048 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1049 audio_io_handle_t output = static_cast <audio_io_handle_t>(data.readInt32()); 1050 audio_stream_type_t stream = (audio_stream_type_t)data.readInt32(); 1051 audio_session_t session = (audio_session_t)data.readInt32(); 1052 releaseOutput(output, stream, session); 1053 return NO_ERROR; 1054 } break; 1055 1056 case GET_INPUT_FOR_ATTR: { 1057 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1058 audio_attributes_t attr = {}; 1059 data.read(&attr, sizeof(audio_attributes_t)); 1060 sanetizeAudioAttributes(&attr); 1061 audio_io_handle_t input = (audio_io_handle_t)data.readInt32(); 1062 audio_session_t session = (audio_session_t)data.readInt32(); 1063 pid_t pid = (pid_t)data.readInt32(); 1064 uid_t uid = (uid_t)data.readInt32(); 1065 const String16 opPackageName = data.readString16(); 1066 audio_config_base_t config; 1067 memset(&config, 0, sizeof(audio_config_base_t)); 1068 data.read(&config, sizeof(audio_config_base_t)); 1069 audio_input_flags_t flags = (audio_input_flags_t) data.readInt32(); 1070 audio_port_handle_t selectedDeviceId = (audio_port_handle_t) data.readInt32(); 1071 audio_port_handle_t portId = (audio_port_handle_t)data.readInt32(); 1072 status_t status = getInputForAttr(&attr, &input, session, pid, uid, 1073 opPackageName, &config, 1074 flags, &selectedDeviceId, &portId); 1075 reply->writeInt32(status); 1076 if (status == NO_ERROR) { 1077 reply->writeInt32(input); 1078 reply->writeInt32(selectedDeviceId); 1079 reply->writeInt32(portId); 1080 } 1081 return NO_ERROR; 1082 } break; 1083 1084 case START_INPUT: { 1085 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1086 audio_port_handle_t portId = static_cast <audio_port_handle_t>(data.readInt32()); 1087 bool silenced = data.readInt32() == 1; 1088 status_t status = startInput(portId, &silenced); 1089 reply->writeInt32(static_cast <uint32_t>(status)); 1090 reply->writeInt32(silenced ? 1 : 0); 1091 return NO_ERROR; 1092 } break; 1093 1094 case STOP_INPUT: { 1095 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1096 audio_port_handle_t portId = static_cast <audio_port_handle_t>(data.readInt32()); 1097 reply->writeInt32(static_cast <uint32_t>(stopInput(portId))); 1098 return NO_ERROR; 1099 } break; 1100 1101 case RELEASE_INPUT: { 1102 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1103 audio_port_handle_t portId = static_cast <audio_port_handle_t>(data.readInt32()); 1104 releaseInput(portId); 1105 return NO_ERROR; 1106 } break; 1107 1108 case INIT_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 indexMin = data.readInt32(); 1113 int indexMax = data.readInt32(); 1114 reply->writeInt32(static_cast <uint32_t>(initStreamVolume(stream, indexMin,indexMax))); 1115 return NO_ERROR; 1116 } break; 1117 1118 case SET_STREAM_VOLUME: { 1119 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1120 audio_stream_type_t stream = 1121 static_cast <audio_stream_type_t>(data.readInt32()); 1122 int index = data.readInt32(); 1123 audio_devices_t device = static_cast <audio_devices_t>(data.readInt32()); 1124 reply->writeInt32(static_cast <uint32_t>(setStreamVolumeIndex(stream, 1125 index, 1126 device))); 1127 return NO_ERROR; 1128 } break; 1129 1130 case GET_STREAM_VOLUME: { 1131 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1132 audio_stream_type_t stream = 1133 static_cast <audio_stream_type_t>(data.readInt32()); 1134 audio_devices_t device = static_cast <audio_devices_t>(data.readInt32()); 1135 int index = 0; 1136 status_t status = getStreamVolumeIndex(stream, &index, device); 1137 reply->writeInt32(index); 1138 reply->writeInt32(static_cast <uint32_t>(status)); 1139 return NO_ERROR; 1140 } break; 1141 1142 case GET_STRATEGY_FOR_STREAM: { 1143 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1144 audio_stream_type_t stream = 1145 static_cast <audio_stream_type_t>(data.readInt32()); 1146 reply->writeInt32(getStrategyForStream(stream)); 1147 return NO_ERROR; 1148 } break; 1149 1150 case GET_DEVICES_FOR_STREAM: { 1151 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1152 audio_stream_type_t stream = 1153 static_cast <audio_stream_type_t>(data.readInt32()); 1154 reply->writeInt32(static_cast <int>(getDevicesForStream(stream))); 1155 return NO_ERROR; 1156 } break; 1157 1158 case GET_OUTPUT_FOR_EFFECT: { 1159 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1160 effect_descriptor_t desc = {}; 1161 if (data.read(&desc, sizeof(desc)) != NO_ERROR) { 1162 android_errorWriteLog(0x534e4554, "73126106"); 1163 } 1164 (void)sanitizeEffectDescriptor(&desc); 1165 audio_io_handle_t output = getOutputForEffect(&desc); 1166 reply->writeInt32(static_cast <int>(output)); 1167 return NO_ERROR; 1168 } break; 1169 1170 case REGISTER_EFFECT: { 1171 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1172 effect_descriptor_t desc = {}; 1173 if (data.read(&desc, sizeof(desc)) != NO_ERROR) { 1174 android_errorWriteLog(0x534e4554, "73126106"); 1175 } 1176 (void)sanitizeEffectDescriptor(&desc); 1177 audio_io_handle_t io = data.readInt32(); 1178 uint32_t strategy = data.readInt32(); 1179 audio_session_t session = (audio_session_t) data.readInt32(); 1180 int id = data.readInt32(); 1181 reply->writeInt32(static_cast <int32_t>(registerEffect(&desc, 1182 io, 1183 strategy, 1184 session, 1185 id))); 1186 return NO_ERROR; 1187 } break; 1188 1189 case UNREGISTER_EFFECT: { 1190 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1191 int id = data.readInt32(); 1192 reply->writeInt32(static_cast <int32_t>(unregisterEffect(id))); 1193 return NO_ERROR; 1194 } break; 1195 1196 case SET_EFFECT_ENABLED: { 1197 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1198 int id = data.readInt32(); 1199 bool enabled = static_cast <bool>(data.readInt32()); 1200 reply->writeInt32(static_cast <int32_t>(setEffectEnabled(id, enabled))); 1201 return NO_ERROR; 1202 } break; 1203 1204 case IS_STREAM_ACTIVE: { 1205 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1206 audio_stream_type_t stream = (audio_stream_type_t) data.readInt32(); 1207 uint32_t inPastMs = (uint32_t)data.readInt32(); 1208 reply->writeInt32( isStreamActive(stream, inPastMs) ); 1209 return NO_ERROR; 1210 } break; 1211 1212 case IS_STREAM_ACTIVE_REMOTELY: { 1213 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1214 audio_stream_type_t stream = (audio_stream_type_t) data.readInt32(); 1215 uint32_t inPastMs = (uint32_t)data.readInt32(); 1216 reply->writeInt32( isStreamActiveRemotely(stream, inPastMs) ); 1217 return NO_ERROR; 1218 } break; 1219 1220 case IS_SOURCE_ACTIVE: { 1221 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1222 audio_source_t source = (audio_source_t) data.readInt32(); 1223 reply->writeInt32( isSourceActive(source)); 1224 return NO_ERROR; 1225 } 1226 1227 case QUERY_DEFAULT_PRE_PROCESSING: { 1228 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1229 audio_session_t audioSession = (audio_session_t) data.readInt32(); 1230 uint32_t count = data.readInt32(); 1231 if (count > AudioEffect::kMaxPreProcessing) { 1232 count = AudioEffect::kMaxPreProcessing; 1233 } 1234 uint32_t retCount = count; 1235 effect_descriptor_t *descriptors = new effect_descriptor_t[count]{}; 1236 status_t status = queryDefaultPreProcessing(audioSession, descriptors, &retCount); 1237 reply->writeInt32(status); 1238 if (status != NO_ERROR && status != NO_MEMORY) { 1239 retCount = 0; 1240 } 1241 reply->writeInt32(retCount); 1242 if (retCount != 0) { 1243 if (retCount < count) { 1244 count = retCount; 1245 } 1246 reply->write(descriptors, sizeof(effect_descriptor_t) * count); 1247 } 1248 delete[] descriptors; 1249 return status; 1250 } 1251 1252 case IS_OFFLOAD_SUPPORTED: { 1253 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1254 audio_offload_info_t info = {}; 1255 data.read(&info, sizeof(audio_offload_info_t)); 1256 bool isSupported = isOffloadSupported(info); 1257 reply->writeInt32(isSupported); 1258 return NO_ERROR; 1259 } 1260 1261 case LIST_AUDIO_PORTS: { 1262 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1263 audio_port_role_t role = (audio_port_role_t)data.readInt32(); 1264 audio_port_type_t type = (audio_port_type_t)data.readInt32(); 1265 unsigned int numPortsReq = data.readInt32(); 1266 if (numPortsReq > MAX_ITEMS_PER_LIST) { 1267 numPortsReq = MAX_ITEMS_PER_LIST; 1268 } 1269 unsigned int numPorts = numPortsReq; 1270 struct audio_port *ports = 1271 (struct audio_port *)calloc(numPortsReq, sizeof(struct audio_port)); 1272 if (ports == NULL) { 1273 reply->writeInt32(NO_MEMORY); 1274 reply->writeInt32(0); 1275 return NO_ERROR; 1276 } 1277 unsigned int generation; 1278 status_t status = listAudioPorts(role, type, &numPorts, ports, &generation); 1279 reply->writeInt32(status); 1280 reply->writeInt32(numPorts); 1281 1282 if (status == NO_ERROR) { 1283 if (numPortsReq > numPorts) { 1284 numPortsReq = numPorts; 1285 } 1286 reply->write(ports, numPortsReq * sizeof(struct audio_port)); 1287 reply->writeInt32(generation); 1288 } 1289 free(ports); 1290 return NO_ERROR; 1291 } 1292 1293 case GET_AUDIO_PORT: { 1294 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1295 struct audio_port port = {}; 1296 if (data.read(&port, sizeof(struct audio_port)) != NO_ERROR) { 1297 ALOGE("b/23912202"); 1298 } 1299 status_t status = getAudioPort(&port); 1300 reply->writeInt32(status); 1301 if (status == NO_ERROR) { 1302 reply->write(&port, sizeof(struct audio_port)); 1303 } 1304 return NO_ERROR; 1305 } 1306 1307 case CREATE_AUDIO_PATCH: { 1308 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1309 struct audio_patch patch = {}; 1310 data.read(&patch, sizeof(struct audio_patch)); 1311 audio_patch_handle_t handle = AUDIO_PATCH_HANDLE_NONE; 1312 if (data.read(&handle, sizeof(audio_patch_handle_t)) != NO_ERROR) { 1313 ALOGE("b/23912202"); 1314 } 1315 status_t status = createAudioPatch(&patch, &handle); 1316 reply->writeInt32(status); 1317 if (status == NO_ERROR) { 1318 reply->write(&handle, sizeof(audio_patch_handle_t)); 1319 } 1320 return NO_ERROR; 1321 } 1322 1323 case RELEASE_AUDIO_PATCH: { 1324 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1325 audio_patch_handle_t handle = AUDIO_PATCH_HANDLE_NONE; 1326 data.read(&handle, sizeof(audio_patch_handle_t)); 1327 status_t status = releaseAudioPatch(handle); 1328 reply->writeInt32(status); 1329 return NO_ERROR; 1330 } 1331 1332 case LIST_AUDIO_PATCHES: { 1333 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1334 unsigned int numPatchesReq = data.readInt32(); 1335 if (numPatchesReq > MAX_ITEMS_PER_LIST) { 1336 numPatchesReq = MAX_ITEMS_PER_LIST; 1337 } 1338 unsigned int numPatches = numPatchesReq; 1339 struct audio_patch *patches = 1340 (struct audio_patch *)calloc(numPatchesReq, 1341 sizeof(struct audio_patch)); 1342 if (patches == NULL) { 1343 reply->writeInt32(NO_MEMORY); 1344 reply->writeInt32(0); 1345 return NO_ERROR; 1346 } 1347 unsigned int generation; 1348 status_t status = listAudioPatches(&numPatches, patches, &generation); 1349 reply->writeInt32(status); 1350 reply->writeInt32(numPatches); 1351 if (status == NO_ERROR) { 1352 if (numPatchesReq > numPatches) { 1353 numPatchesReq = numPatches; 1354 } 1355 reply->write(patches, numPatchesReq * sizeof(struct audio_patch)); 1356 reply->writeInt32(generation); 1357 } 1358 free(patches); 1359 return NO_ERROR; 1360 } 1361 1362 case SET_AUDIO_PORT_CONFIG: { 1363 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1364 struct audio_port_config config = {}; 1365 data.read(&config, sizeof(struct audio_port_config)); 1366 (void)sanitizeAudioPortConfig(&config); 1367 status_t status = setAudioPortConfig(&config); 1368 reply->writeInt32(status); 1369 return NO_ERROR; 1370 } 1371 1372 case REGISTER_CLIENT: { 1373 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1374 sp<IAudioPolicyServiceClient> client = interface_cast<IAudioPolicyServiceClient>( 1375 data.readStrongBinder()); 1376 registerClient(client); 1377 return NO_ERROR; 1378 } break; 1379 1380 case SET_AUDIO_PORT_CALLBACK_ENABLED: { 1381 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1382 setAudioPortCallbacksEnabled(data.readInt32() == 1); 1383 return NO_ERROR; 1384 } break; 1385 1386 case ACQUIRE_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_NONE; 1391 audio_io_handle_t ioHandle = AUDIO_IO_HANDLE_NONE; 1392 audio_devices_t device = AUDIO_DEVICE_NONE; 1393 status_t status = acquireSoundTriggerSession(&session, &ioHandle, &device); 1394 reply->writeInt32(status); 1395 if (status == NO_ERROR) { 1396 reply->writeInt32(session); 1397 reply->writeInt32(ioHandle); 1398 reply->writeInt32(device); 1399 } 1400 return NO_ERROR; 1401 } break; 1402 1403 case RELEASE_SOUNDTRIGGER_SESSION: { 1404 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1405 sp<IAudioPolicyServiceClient> client = interface_cast<IAudioPolicyServiceClient>( 1406 data.readStrongBinder()); 1407 audio_session_t session = (audio_session_t)data.readInt32(); 1408 status_t status = releaseSoundTriggerSession(session); 1409 reply->writeInt32(status); 1410 return NO_ERROR; 1411 } break; 1412 1413 case GET_PHONE_STATE: { 1414 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1415 reply->writeInt32((int32_t)getPhoneState()); 1416 return NO_ERROR; 1417 } break; 1418 1419 case REGISTER_POLICY_MIXES: { 1420 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1421 bool registration = data.readInt32() == 1; 1422 Vector<AudioMix> mixes; 1423 size_t size = (size_t)data.readInt32(); 1424 if (size > MAX_MIXES_PER_POLICY) { 1425 size = MAX_MIXES_PER_POLICY; 1426 } 1427 for (size_t i = 0; i < size; i++) { 1428 AudioMix mix; 1429 if (mix.readFromParcel((Parcel*)&data) == NO_ERROR) { 1430 mixes.add(mix); 1431 } 1432 } 1433 status_t status = registerPolicyMixes(mixes, registration); 1434 reply->writeInt32(status); 1435 return NO_ERROR; 1436 } break; 1437 1438 case START_AUDIO_SOURCE: { 1439 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1440 struct audio_port_config source = {}; 1441 data.read(&source, sizeof(struct audio_port_config)); 1442 (void)sanitizeAudioPortConfig(&source); 1443 audio_attributes_t attributes = {}; 1444 data.read(&attributes, sizeof(audio_attributes_t)); 1445 sanetizeAudioAttributes(&attributes); 1446 audio_patch_handle_t handle = AUDIO_PATCH_HANDLE_NONE; 1447 status_t status = startAudioSource(&source, &attributes, &handle); 1448 reply->writeInt32(status); 1449 reply->writeInt32(handle); 1450 return NO_ERROR; 1451 } break; 1452 1453 case STOP_AUDIO_SOURCE: { 1454 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1455 audio_patch_handle_t handle = (audio_patch_handle_t) data.readInt32(); 1456 status_t status = stopAudioSource(handle); 1457 reply->writeInt32(status); 1458 return NO_ERROR; 1459 } break; 1460 1461 case SET_MASTER_MONO: { 1462 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1463 bool mono = static_cast<bool>(data.readInt32()); 1464 status_t status = setMasterMono(mono); 1465 reply->writeInt32(status); 1466 return NO_ERROR; 1467 } break; 1468 1469 case GET_MASTER_MONO: { 1470 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1471 bool mono; 1472 status_t status = getMasterMono(&mono); 1473 reply->writeInt32(status); 1474 if (status == NO_ERROR) { 1475 reply->writeInt32(static_cast<int32_t>(mono)); 1476 } 1477 return NO_ERROR; 1478 } break; 1479 1480 case GET_STREAM_VOLUME_DB: { 1481 CHECK_INTERFACE(IAudioPolicyService, data, reply); 1482 audio_stream_type_t stream = 1483 static_cast <audio_stream_type_t>(data.readInt32()); 1484 int index = static_cast <int>(data.readInt32()); 1485 audio_devices_t device = 1486 static_cast <audio_devices_t>(data.readUint32()); 1487 reply->writeFloat(getStreamVolumeDB(stream, index, device)); 1488 return NO_ERROR; 1489 } 1490 1491 default: 1492 return BBinder::onTransact(code, data, reply, flags); 1493 } 1494} 1495 1496/** returns true if string overflow was prevented by zero termination */ 1497template <size_t size> 1498static bool preventStringOverflow(char (&s)[size]) { 1499 if (strnlen(s, size) < size) return false; 1500 s[size - 1] = '\0'; 1501 return true; 1502} 1503 1504void BnAudioPolicyService::sanetizeAudioAttributes(audio_attributes_t* attr) 1505{ 1506 const size_t tagsMaxSize = AUDIO_ATTRIBUTES_TAGS_MAX_SIZE; 1507 if (strnlen(attr->tags, tagsMaxSize) >= tagsMaxSize) { 1508 android_errorWriteLog(0x534e4554, "68953950"); // SafetyNet logging 1509 } 1510 attr->tags[tagsMaxSize - 1] = '\0'; 1511} 1512 1513/** returns BAD_VALUE if sanitization was required. */ 1514status_t BnAudioPolicyService::sanitizeEffectDescriptor(effect_descriptor_t* desc) 1515{ 1516 if (preventStringOverflow(desc->name) 1517 | /* always */ preventStringOverflow(desc->implementor)) { 1518 android_errorWriteLog(0x534e4554, "73126106"); // SafetyNet logging 1519 return BAD_VALUE; 1520 } 1521 return NO_ERROR; 1522} 1523 1524/** returns BAD_VALUE if sanitization was required. */ 1525status_t BnAudioPolicyService::sanitizeAudioPortConfig(struct audio_port_config* config) 1526{ 1527 if (config->type == AUDIO_PORT_TYPE_DEVICE && 1528 preventStringOverflow(config->ext.device.address)) { 1529 return BAD_VALUE; 1530 } 1531 return NO_ERROR; 1532} 1533 1534// ---------------------------------------------------------------------------- 1535 1536} // namespace android 1537