1 /* 2 ** 3 ** Copyright 2007, 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 "IAudioFlinger" 19 //#define LOG_NDEBUG 0 20 #include <utils/Log.h> 21 22 #include <stdint.h> 23 #include <sys/types.h> 24 25 #include <binder/Parcel.h> 26 27 #include <media/IAudioFlinger.h> 28 29 namespace android { 30 31 enum { 32 CREATE_TRACK = IBinder::FIRST_CALL_TRANSACTION, 33 OPEN_RECORD, 34 SAMPLE_RATE, 35 RESERVED, // obsolete, was CHANNEL_COUNT 36 FORMAT, 37 FRAME_COUNT, 38 LATENCY, 39 SET_MASTER_VOLUME, 40 SET_MASTER_MUTE, 41 MASTER_VOLUME, 42 MASTER_MUTE, 43 SET_STREAM_VOLUME, 44 SET_STREAM_MUTE, 45 STREAM_VOLUME, 46 STREAM_MUTE, 47 SET_MODE, 48 SET_MIC_MUTE, 49 GET_MIC_MUTE, 50 SET_PARAMETERS, 51 GET_PARAMETERS, 52 REGISTER_CLIENT, 53 GET_INPUTBUFFERSIZE, 54 OPEN_OUTPUT, 55 OPEN_DUPLICATE_OUTPUT, 56 CLOSE_OUTPUT, 57 SUSPEND_OUTPUT, 58 RESTORE_OUTPUT, 59 OPEN_INPUT, 60 CLOSE_INPUT, 61 INVALIDATE_STREAM, 62 SET_VOICE_VOLUME, 63 GET_RENDER_POSITION, 64 GET_INPUT_FRAMES_LOST, 65 NEW_AUDIO_SESSION_ID, 66 ACQUIRE_AUDIO_SESSION_ID, 67 RELEASE_AUDIO_SESSION_ID, 68 QUERY_NUM_EFFECTS, 69 QUERY_EFFECT, 70 GET_EFFECT_DESCRIPTOR, 71 CREATE_EFFECT, 72 MOVE_EFFECTS, 73 LOAD_HW_MODULE, 74 GET_PRIMARY_OUTPUT_SAMPLING_RATE, 75 GET_PRIMARY_OUTPUT_FRAME_COUNT, 76 SET_LOW_RAM_DEVICE, 77 LIST_AUDIO_PORTS, 78 GET_AUDIO_PORT, 79 CREATE_AUDIO_PATCH, 80 RELEASE_AUDIO_PATCH, 81 LIST_AUDIO_PATCHES, 82 SET_AUDIO_PORT_CONFIG, 83 GET_AUDIO_HW_SYNC, 84 SYSTEM_READY 85 }; 86 87 #define MAX_ITEMS_PER_LIST 1024 88 89 class BpAudioFlinger : public BpInterface<IAudioFlinger> 90 { 91 public: 92 BpAudioFlinger(const sp<IBinder>& impl) 93 : BpInterface<IAudioFlinger>(impl) 94 { 95 } 96 97 virtual sp<IAudioTrack> createTrack( 98 audio_stream_type_t streamType, 99 uint32_t sampleRate, 100 audio_format_t format, 101 audio_channel_mask_t channelMask, 102 size_t *pFrameCount, 103 track_flags_t *flags, 104 const sp<IMemory>& sharedBuffer, 105 audio_io_handle_t output, 106 pid_t tid, 107 int *sessionId, 108 int clientUid, 109 status_t *status) 110 { 111 Parcel data, reply; 112 sp<IAudioTrack> track; 113 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 114 data.writeInt32((int32_t) streamType); 115 data.writeInt32(sampleRate); 116 data.writeInt32(format); 117 data.writeInt32(channelMask); 118 size_t frameCount = pFrameCount != NULL ? *pFrameCount : 0; 119 data.writeInt64(frameCount); 120 track_flags_t lFlags = flags != NULL ? *flags : (track_flags_t) TRACK_DEFAULT; 121 data.writeInt32(lFlags); 122 // haveSharedBuffer 123 if (sharedBuffer != 0) { 124 data.writeInt32(true); 125 data.writeStrongBinder(IInterface::asBinder(sharedBuffer)); 126 } else { 127 data.writeInt32(false); 128 } 129 data.writeInt32((int32_t) output); 130 data.writeInt32((int32_t) tid); 131 int lSessionId = AUDIO_SESSION_ALLOCATE; 132 if (sessionId != NULL) { 133 lSessionId = *sessionId; 134 } 135 data.writeInt32(lSessionId); 136 data.writeInt32(clientUid); 137 status_t lStatus = remote()->transact(CREATE_TRACK, data, &reply); 138 if (lStatus != NO_ERROR) { 139 ALOGE("createTrack error: %s", strerror(-lStatus)); 140 } else { 141 frameCount = reply.readInt64(); 142 if (pFrameCount != NULL) { 143 *pFrameCount = frameCount; 144 } 145 lFlags = reply.readInt32(); 146 if (flags != NULL) { 147 *flags = lFlags; 148 } 149 lSessionId = reply.readInt32(); 150 if (sessionId != NULL) { 151 *sessionId = lSessionId; 152 } 153 lStatus = reply.readInt32(); 154 track = interface_cast<IAudioTrack>(reply.readStrongBinder()); 155 if (lStatus == NO_ERROR) { 156 if (track == 0) { 157 ALOGE("createTrack should have returned an IAudioTrack"); 158 lStatus = UNKNOWN_ERROR; 159 } 160 } else { 161 if (track != 0) { 162 ALOGE("createTrack returned an IAudioTrack but with status %d", lStatus); 163 track.clear(); 164 } 165 } 166 } 167 if (status != NULL) { 168 *status = lStatus; 169 } 170 return track; 171 } 172 173 virtual sp<IAudioRecord> openRecord( 174 audio_io_handle_t input, 175 uint32_t sampleRate, 176 audio_format_t format, 177 audio_channel_mask_t channelMask, 178 const String16& opPackageName, 179 size_t *pFrameCount, 180 track_flags_t *flags, 181 pid_t tid, 182 int clientUid, 183 int *sessionId, 184 size_t *notificationFrames, 185 sp<IMemory>& cblk, 186 sp<IMemory>& buffers, 187 status_t *status) 188 { 189 Parcel data, reply; 190 sp<IAudioRecord> record; 191 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 192 data.writeInt32((int32_t) input); 193 data.writeInt32(sampleRate); 194 data.writeInt32(format); 195 data.writeInt32(channelMask); 196 data.writeString16(opPackageName); 197 size_t frameCount = pFrameCount != NULL ? *pFrameCount : 0; 198 data.writeInt64(frameCount); 199 track_flags_t lFlags = flags != NULL ? *flags : (track_flags_t) TRACK_DEFAULT; 200 data.writeInt32(lFlags); 201 data.writeInt32((int32_t) tid); 202 data.writeInt32((int32_t) clientUid); 203 int lSessionId = AUDIO_SESSION_ALLOCATE; 204 if (sessionId != NULL) { 205 lSessionId = *sessionId; 206 } 207 data.writeInt32(lSessionId); 208 data.writeInt64(notificationFrames != NULL ? *notificationFrames : 0); 209 cblk.clear(); 210 buffers.clear(); 211 status_t lStatus = remote()->transact(OPEN_RECORD, data, &reply); 212 if (lStatus != NO_ERROR) { 213 ALOGE("openRecord error: %s", strerror(-lStatus)); 214 } else { 215 frameCount = reply.readInt64(); 216 if (pFrameCount != NULL) { 217 *pFrameCount = frameCount; 218 } 219 lFlags = reply.readInt32(); 220 if (flags != NULL) { 221 *flags = lFlags; 222 } 223 lSessionId = reply.readInt32(); 224 if (sessionId != NULL) { 225 *sessionId = lSessionId; 226 } 227 size_t lNotificationFrames = (size_t) reply.readInt64(); 228 if (notificationFrames != NULL) { 229 *notificationFrames = lNotificationFrames; 230 } 231 lStatus = reply.readInt32(); 232 record = interface_cast<IAudioRecord>(reply.readStrongBinder()); 233 cblk = interface_cast<IMemory>(reply.readStrongBinder()); 234 if (cblk != 0 && cblk->pointer() == NULL) { 235 cblk.clear(); 236 } 237 buffers = interface_cast<IMemory>(reply.readStrongBinder()); 238 if (buffers != 0 && buffers->pointer() == NULL) { 239 buffers.clear(); 240 } 241 if (lStatus == NO_ERROR) { 242 if (record == 0) { 243 ALOGE("openRecord should have returned an IAudioRecord"); 244 lStatus = UNKNOWN_ERROR; 245 } else if (cblk == 0) { 246 ALOGE("openRecord should have returned a cblk"); 247 lStatus = NO_MEMORY; 248 } 249 // buffers is permitted to be 0 250 } else { 251 if (record != 0 || cblk != 0 || buffers != 0) { 252 ALOGE("openRecord returned an IAudioRecord, cblk, " 253 "or buffers but with status %d", lStatus); 254 } 255 } 256 if (lStatus != NO_ERROR) { 257 record.clear(); 258 cblk.clear(); 259 buffers.clear(); 260 } 261 } 262 if (status != NULL) { 263 *status = lStatus; 264 } 265 return record; 266 } 267 268 virtual uint32_t sampleRate(audio_io_handle_t output) const 269 { 270 Parcel data, reply; 271 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 272 data.writeInt32((int32_t) output); 273 remote()->transact(SAMPLE_RATE, data, &reply); 274 return reply.readInt32(); 275 } 276 277 virtual audio_format_t format(audio_io_handle_t output) const 278 { 279 Parcel data, reply; 280 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 281 data.writeInt32((int32_t) output); 282 remote()->transact(FORMAT, data, &reply); 283 return (audio_format_t) reply.readInt32(); 284 } 285 286 virtual size_t frameCount(audio_io_handle_t output) const 287 { 288 Parcel data, reply; 289 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 290 data.writeInt32((int32_t) output); 291 remote()->transact(FRAME_COUNT, data, &reply); 292 return reply.readInt64(); 293 } 294 295 virtual uint32_t latency(audio_io_handle_t output) const 296 { 297 Parcel data, reply; 298 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 299 data.writeInt32((int32_t) output); 300 remote()->transact(LATENCY, data, &reply); 301 return reply.readInt32(); 302 } 303 304 virtual status_t setMasterVolume(float value) 305 { 306 Parcel data, reply; 307 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 308 data.writeFloat(value); 309 remote()->transact(SET_MASTER_VOLUME, data, &reply); 310 return reply.readInt32(); 311 } 312 313 virtual status_t setMasterMute(bool muted) 314 { 315 Parcel data, reply; 316 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 317 data.writeInt32(muted); 318 remote()->transact(SET_MASTER_MUTE, data, &reply); 319 return reply.readInt32(); 320 } 321 322 virtual float masterVolume() const 323 { 324 Parcel data, reply; 325 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 326 remote()->transact(MASTER_VOLUME, data, &reply); 327 return reply.readFloat(); 328 } 329 330 virtual bool masterMute() const 331 { 332 Parcel data, reply; 333 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 334 remote()->transact(MASTER_MUTE, data, &reply); 335 return reply.readInt32(); 336 } 337 338 virtual status_t setStreamVolume(audio_stream_type_t stream, float value, 339 audio_io_handle_t output) 340 { 341 Parcel data, reply; 342 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 343 data.writeInt32((int32_t) stream); 344 data.writeFloat(value); 345 data.writeInt32((int32_t) output); 346 remote()->transact(SET_STREAM_VOLUME, data, &reply); 347 return reply.readInt32(); 348 } 349 350 virtual status_t setStreamMute(audio_stream_type_t stream, bool muted) 351 { 352 Parcel data, reply; 353 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 354 data.writeInt32((int32_t) stream); 355 data.writeInt32(muted); 356 remote()->transact(SET_STREAM_MUTE, data, &reply); 357 return reply.readInt32(); 358 } 359 360 virtual float streamVolume(audio_stream_type_t stream, audio_io_handle_t output) const 361 { 362 Parcel data, reply; 363 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 364 data.writeInt32((int32_t) stream); 365 data.writeInt32((int32_t) output); 366 remote()->transact(STREAM_VOLUME, data, &reply); 367 return reply.readFloat(); 368 } 369 370 virtual bool streamMute(audio_stream_type_t stream) const 371 { 372 Parcel data, reply; 373 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 374 data.writeInt32((int32_t) stream); 375 remote()->transact(STREAM_MUTE, data, &reply); 376 return reply.readInt32(); 377 } 378 379 virtual status_t setMode(audio_mode_t mode) 380 { 381 Parcel data, reply; 382 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 383 data.writeInt32(mode); 384 remote()->transact(SET_MODE, data, &reply); 385 return reply.readInt32(); 386 } 387 388 virtual status_t setMicMute(bool state) 389 { 390 Parcel data, reply; 391 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 392 data.writeInt32(state); 393 remote()->transact(SET_MIC_MUTE, data, &reply); 394 return reply.readInt32(); 395 } 396 397 virtual bool getMicMute() const 398 { 399 Parcel data, reply; 400 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 401 remote()->transact(GET_MIC_MUTE, data, &reply); 402 return reply.readInt32(); 403 } 404 405 virtual status_t setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs) 406 { 407 Parcel data, reply; 408 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 409 data.writeInt32((int32_t) ioHandle); 410 data.writeString8(keyValuePairs); 411 remote()->transact(SET_PARAMETERS, data, &reply); 412 return reply.readInt32(); 413 } 414 415 virtual String8 getParameters(audio_io_handle_t ioHandle, const String8& keys) const 416 { 417 Parcel data, reply; 418 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 419 data.writeInt32((int32_t) ioHandle); 420 data.writeString8(keys); 421 remote()->transact(GET_PARAMETERS, data, &reply); 422 return reply.readString8(); 423 } 424 425 virtual void registerClient(const sp<IAudioFlingerClient>& client) 426 { 427 Parcel data, reply; 428 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 429 data.writeStrongBinder(IInterface::asBinder(client)); 430 remote()->transact(REGISTER_CLIENT, data, &reply); 431 } 432 433 virtual size_t getInputBufferSize(uint32_t sampleRate, audio_format_t format, 434 audio_channel_mask_t channelMask) const 435 { 436 Parcel data, reply; 437 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 438 data.writeInt32(sampleRate); 439 data.writeInt32(format); 440 data.writeInt32(channelMask); 441 remote()->transact(GET_INPUTBUFFERSIZE, data, &reply); 442 return reply.readInt64(); 443 } 444 445 virtual status_t openOutput(audio_module_handle_t module, 446 audio_io_handle_t *output, 447 audio_config_t *config, 448 audio_devices_t *devices, 449 const String8& address, 450 uint32_t *latencyMs, 451 audio_output_flags_t flags) 452 { 453 if (output == NULL || config == NULL || devices == NULL || latencyMs == NULL) { 454 return BAD_VALUE; 455 } 456 Parcel data, reply; 457 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 458 data.writeInt32(module); 459 data.write(config, sizeof(audio_config_t)); 460 data.writeInt32(*devices); 461 data.writeString8(address); 462 data.writeInt32((int32_t) flags); 463 status_t status = remote()->transact(OPEN_OUTPUT, data, &reply); 464 if (status != NO_ERROR) { 465 *output = AUDIO_IO_HANDLE_NONE; 466 return status; 467 } 468 status = (status_t)reply.readInt32(); 469 if (status != NO_ERROR) { 470 *output = AUDIO_IO_HANDLE_NONE; 471 return status; 472 } 473 *output = (audio_io_handle_t)reply.readInt32(); 474 ALOGV("openOutput() returned output, %d", *output); 475 reply.read(config, sizeof(audio_config_t)); 476 *devices = (audio_devices_t)reply.readInt32(); 477 *latencyMs = reply.readInt32(); 478 return NO_ERROR; 479 } 480 481 virtual audio_io_handle_t openDuplicateOutput(audio_io_handle_t output1, 482 audio_io_handle_t output2) 483 { 484 Parcel data, reply; 485 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 486 data.writeInt32((int32_t) output1); 487 data.writeInt32((int32_t) output2); 488 remote()->transact(OPEN_DUPLICATE_OUTPUT, data, &reply); 489 return (audio_io_handle_t) reply.readInt32(); 490 } 491 492 virtual status_t closeOutput(audio_io_handle_t output) 493 { 494 Parcel data, reply; 495 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 496 data.writeInt32((int32_t) output); 497 remote()->transact(CLOSE_OUTPUT, data, &reply); 498 return reply.readInt32(); 499 } 500 501 virtual status_t suspendOutput(audio_io_handle_t output) 502 { 503 Parcel data, reply; 504 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 505 data.writeInt32((int32_t) output); 506 remote()->transact(SUSPEND_OUTPUT, data, &reply); 507 return reply.readInt32(); 508 } 509 510 virtual status_t restoreOutput(audio_io_handle_t output) 511 { 512 Parcel data, reply; 513 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 514 data.writeInt32((int32_t) output); 515 remote()->transact(RESTORE_OUTPUT, data, &reply); 516 return reply.readInt32(); 517 } 518 519 virtual status_t openInput(audio_module_handle_t module, 520 audio_io_handle_t *input, 521 audio_config_t *config, 522 audio_devices_t *device, 523 const String8& address, 524 audio_source_t source, 525 audio_input_flags_t flags) 526 { 527 if (input == NULL || config == NULL || device == NULL) { 528 return BAD_VALUE; 529 } 530 Parcel data, reply; 531 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 532 data.writeInt32(module); 533 data.writeInt32(*input); 534 data.write(config, sizeof(audio_config_t)); 535 data.writeInt32(*device); 536 data.writeString8(address); 537 data.writeInt32(source); 538 data.writeInt32(flags); 539 status_t status = remote()->transact(OPEN_INPUT, data, &reply); 540 if (status != NO_ERROR) { 541 *input = AUDIO_IO_HANDLE_NONE; 542 return status; 543 } 544 status = (status_t)reply.readInt32(); 545 if (status != NO_ERROR) { 546 *input = AUDIO_IO_HANDLE_NONE; 547 return status; 548 } 549 *input = (audio_io_handle_t)reply.readInt32(); 550 reply.read(config, sizeof(audio_config_t)); 551 *device = (audio_devices_t)reply.readInt32(); 552 return NO_ERROR; 553 } 554 555 virtual status_t closeInput(int input) 556 { 557 Parcel data, reply; 558 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 559 data.writeInt32(input); 560 remote()->transact(CLOSE_INPUT, data, &reply); 561 return reply.readInt32(); 562 } 563 564 virtual status_t invalidateStream(audio_stream_type_t stream) 565 { 566 Parcel data, reply; 567 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 568 data.writeInt32((int32_t) stream); 569 remote()->transact(INVALIDATE_STREAM, data, &reply); 570 return reply.readInt32(); 571 } 572 573 virtual status_t setVoiceVolume(float volume) 574 { 575 Parcel data, reply; 576 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 577 data.writeFloat(volume); 578 remote()->transact(SET_VOICE_VOLUME, data, &reply); 579 return reply.readInt32(); 580 } 581 582 virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, 583 audio_io_handle_t output) const 584 { 585 Parcel data, reply; 586 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 587 data.writeInt32((int32_t) output); 588 remote()->transact(GET_RENDER_POSITION, data, &reply); 589 status_t status = reply.readInt32(); 590 if (status == NO_ERROR) { 591 uint32_t tmp = reply.readInt32(); 592 if (halFrames != NULL) { 593 *halFrames = tmp; 594 } 595 tmp = reply.readInt32(); 596 if (dspFrames != NULL) { 597 *dspFrames = tmp; 598 } 599 } 600 return status; 601 } 602 603 virtual uint32_t getInputFramesLost(audio_io_handle_t ioHandle) const 604 { 605 Parcel data, reply; 606 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 607 data.writeInt32((int32_t) ioHandle); 608 status_t status = remote()->transact(GET_INPUT_FRAMES_LOST, data, &reply); 609 if (status != NO_ERROR) { 610 return 0; 611 } 612 return (uint32_t) reply.readInt32(); 613 } 614 615 virtual audio_unique_id_t newAudioUniqueId() 616 { 617 Parcel data, reply; 618 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 619 status_t status = remote()->transact(NEW_AUDIO_SESSION_ID, data, &reply); 620 audio_unique_id_t id = AUDIO_SESSION_ALLOCATE; 621 if (status == NO_ERROR) { 622 id = reply.readInt32(); 623 } 624 return id; 625 } 626 627 virtual void acquireAudioSessionId(int audioSession, int pid) 628 { 629 Parcel data, reply; 630 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 631 data.writeInt32(audioSession); 632 data.writeInt32(pid); 633 remote()->transact(ACQUIRE_AUDIO_SESSION_ID, data, &reply); 634 } 635 636 virtual void releaseAudioSessionId(int audioSession, int pid) 637 { 638 Parcel data, reply; 639 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 640 data.writeInt32(audioSession); 641 data.writeInt32(pid); 642 remote()->transact(RELEASE_AUDIO_SESSION_ID, data, &reply); 643 } 644 645 virtual status_t queryNumberEffects(uint32_t *numEffects) const 646 { 647 Parcel data, reply; 648 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 649 status_t status = remote()->transact(QUERY_NUM_EFFECTS, data, &reply); 650 if (status != NO_ERROR) { 651 return status; 652 } 653 status = reply.readInt32(); 654 if (status != NO_ERROR) { 655 return status; 656 } 657 if (numEffects != NULL) { 658 *numEffects = (uint32_t)reply.readInt32(); 659 } 660 return NO_ERROR; 661 } 662 663 virtual status_t queryEffect(uint32_t index, effect_descriptor_t *pDescriptor) const 664 { 665 if (pDescriptor == NULL) { 666 return BAD_VALUE; 667 } 668 Parcel data, reply; 669 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 670 data.writeInt32(index); 671 status_t status = remote()->transact(QUERY_EFFECT, data, &reply); 672 if (status != NO_ERROR) { 673 return status; 674 } 675 status = reply.readInt32(); 676 if (status != NO_ERROR) { 677 return status; 678 } 679 reply.read(pDescriptor, sizeof(effect_descriptor_t)); 680 return NO_ERROR; 681 } 682 683 virtual status_t getEffectDescriptor(const effect_uuid_t *pUuid, 684 effect_descriptor_t *pDescriptor) const 685 { 686 if (pUuid == NULL || pDescriptor == NULL) { 687 return BAD_VALUE; 688 } 689 Parcel data, reply; 690 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 691 data.write(pUuid, sizeof(effect_uuid_t)); 692 status_t status = remote()->transact(GET_EFFECT_DESCRIPTOR, data, &reply); 693 if (status != NO_ERROR) { 694 return status; 695 } 696 status = reply.readInt32(); 697 if (status != NO_ERROR) { 698 return status; 699 } 700 reply.read(pDescriptor, sizeof(effect_descriptor_t)); 701 return NO_ERROR; 702 } 703 704 virtual sp<IEffect> createEffect( 705 effect_descriptor_t *pDesc, 706 const sp<IEffectClient>& client, 707 int32_t priority, 708 audio_io_handle_t output, 709 int sessionId, 710 const String16& opPackageName, 711 status_t *status, 712 int *id, 713 int *enabled) 714 { 715 Parcel data, reply; 716 sp<IEffect> effect; 717 718 if (pDesc == NULL) { 719 return effect; 720 if (status != NULL) { 721 *status = BAD_VALUE; 722 } 723 } 724 725 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 726 data.write(pDesc, sizeof(effect_descriptor_t)); 727 data.writeStrongBinder(IInterface::asBinder(client)); 728 data.writeInt32(priority); 729 data.writeInt32((int32_t) output); 730 data.writeInt32(sessionId); 731 data.writeString16(opPackageName); 732 733 status_t lStatus = remote()->transact(CREATE_EFFECT, data, &reply); 734 if (lStatus != NO_ERROR) { 735 ALOGE("createEffect error: %s", strerror(-lStatus)); 736 } else { 737 lStatus = reply.readInt32(); 738 int tmp = reply.readInt32(); 739 if (id != NULL) { 740 *id = tmp; 741 } 742 tmp = reply.readInt32(); 743 if (enabled != NULL) { 744 *enabled = tmp; 745 } 746 effect = interface_cast<IEffect>(reply.readStrongBinder()); 747 reply.read(pDesc, sizeof(effect_descriptor_t)); 748 } 749 if (status != NULL) { 750 *status = lStatus; 751 } 752 753 return effect; 754 } 755 756 virtual status_t moveEffects(int session, audio_io_handle_t srcOutput, 757 audio_io_handle_t dstOutput) 758 { 759 Parcel data, reply; 760 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 761 data.writeInt32(session); 762 data.writeInt32((int32_t) srcOutput); 763 data.writeInt32((int32_t) dstOutput); 764 remote()->transact(MOVE_EFFECTS, data, &reply); 765 return reply.readInt32(); 766 } 767 768 virtual audio_module_handle_t loadHwModule(const char *name) 769 { 770 Parcel data, reply; 771 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 772 data.writeCString(name); 773 remote()->transact(LOAD_HW_MODULE, data, &reply); 774 return (audio_module_handle_t) reply.readInt32(); 775 } 776 777 virtual uint32_t getPrimaryOutputSamplingRate() 778 { 779 Parcel data, reply; 780 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 781 remote()->transact(GET_PRIMARY_OUTPUT_SAMPLING_RATE, data, &reply); 782 return reply.readInt32(); 783 } 784 785 virtual size_t getPrimaryOutputFrameCount() 786 { 787 Parcel data, reply; 788 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 789 remote()->transact(GET_PRIMARY_OUTPUT_FRAME_COUNT, data, &reply); 790 return reply.readInt64(); 791 } 792 793 virtual status_t setLowRamDevice(bool isLowRamDevice) 794 { 795 Parcel data, reply; 796 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 797 data.writeInt32((int) isLowRamDevice); 798 remote()->transact(SET_LOW_RAM_DEVICE, data, &reply); 799 return reply.readInt32(); 800 } 801 virtual status_t listAudioPorts(unsigned int *num_ports, 802 struct audio_port *ports) 803 { 804 if (num_ports == NULL || *num_ports == 0 || ports == NULL) { 805 return BAD_VALUE; 806 } 807 Parcel data, reply; 808 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 809 data.writeInt32(*num_ports); 810 status_t status = remote()->transact(LIST_AUDIO_PORTS, data, &reply); 811 if (status != NO_ERROR || 812 (status = (status_t)reply.readInt32()) != NO_ERROR) { 813 return status; 814 } 815 *num_ports = (unsigned int)reply.readInt32(); 816 reply.read(ports, *num_ports * sizeof(struct audio_port)); 817 return status; 818 } 819 virtual status_t getAudioPort(struct audio_port *port) 820 { 821 if (port == NULL) { 822 return BAD_VALUE; 823 } 824 Parcel data, reply; 825 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 826 data.write(port, sizeof(struct audio_port)); 827 status_t status = remote()->transact(GET_AUDIO_PORT, data, &reply); 828 if (status != NO_ERROR || 829 (status = (status_t)reply.readInt32()) != NO_ERROR) { 830 return status; 831 } 832 reply.read(port, sizeof(struct audio_port)); 833 return status; 834 } 835 virtual status_t createAudioPatch(const struct audio_patch *patch, 836 audio_patch_handle_t *handle) 837 { 838 if (patch == NULL || handle == NULL) { 839 return BAD_VALUE; 840 } 841 Parcel data, reply; 842 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 843 data.write(patch, sizeof(struct audio_patch)); 844 data.write(handle, sizeof(audio_patch_handle_t)); 845 status_t status = remote()->transact(CREATE_AUDIO_PATCH, data, &reply); 846 if (status != NO_ERROR || 847 (status = (status_t)reply.readInt32()) != NO_ERROR) { 848 return status; 849 } 850 reply.read(handle, sizeof(audio_patch_handle_t)); 851 return status; 852 } 853 virtual status_t releaseAudioPatch(audio_patch_handle_t handle) 854 { 855 Parcel data, reply; 856 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 857 data.write(&handle, sizeof(audio_patch_handle_t)); 858 status_t status = remote()->transact(RELEASE_AUDIO_PATCH, data, &reply); 859 if (status != NO_ERROR) { 860 status = (status_t)reply.readInt32(); 861 } 862 return status; 863 } 864 virtual status_t listAudioPatches(unsigned int *num_patches, 865 struct audio_patch *patches) 866 { 867 if (num_patches == NULL || *num_patches == 0 || patches == NULL) { 868 return BAD_VALUE; 869 } 870 Parcel data, reply; 871 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 872 data.writeInt32(*num_patches); 873 status_t status = remote()->transact(LIST_AUDIO_PATCHES, data, &reply); 874 if (status != NO_ERROR || 875 (status = (status_t)reply.readInt32()) != NO_ERROR) { 876 return status; 877 } 878 *num_patches = (unsigned int)reply.readInt32(); 879 reply.read(patches, *num_patches * sizeof(struct audio_patch)); 880 return status; 881 } 882 virtual status_t setAudioPortConfig(const struct audio_port_config *config) 883 { 884 if (config == NULL) { 885 return BAD_VALUE; 886 } 887 Parcel data, reply; 888 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 889 data.write(config, sizeof(struct audio_port_config)); 890 status_t status = remote()->transact(SET_AUDIO_PORT_CONFIG, data, &reply); 891 if (status != NO_ERROR) { 892 status = (status_t)reply.readInt32(); 893 } 894 return status; 895 } 896 virtual audio_hw_sync_t getAudioHwSyncForSession(audio_session_t sessionId) 897 { 898 Parcel data, reply; 899 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 900 data.writeInt32(sessionId); 901 status_t status = remote()->transact(GET_AUDIO_HW_SYNC, data, &reply); 902 if (status != NO_ERROR) { 903 return AUDIO_HW_SYNC_INVALID; 904 } 905 return (audio_hw_sync_t)reply.readInt32(); 906 } 907 virtual status_t systemReady() 908 { 909 Parcel data, reply; 910 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 911 return remote()->transact(SYSTEM_READY, data, &reply, IBinder::FLAG_ONEWAY); 912 } 913 }; 914 915 IMPLEMENT_META_INTERFACE(AudioFlinger, "android.media.IAudioFlinger"); 916 917 // ---------------------------------------------------------------------- 918 919 status_t BnAudioFlinger::onTransact( 920 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 921 { 922 switch (code) { 923 case CREATE_TRACK: { 924 CHECK_INTERFACE(IAudioFlinger, data, reply); 925 int streamType = data.readInt32(); 926 uint32_t sampleRate = data.readInt32(); 927 audio_format_t format = (audio_format_t) data.readInt32(); 928 audio_channel_mask_t channelMask = data.readInt32(); 929 size_t frameCount = data.readInt64(); 930 track_flags_t flags = (track_flags_t) data.readInt32(); 931 bool haveSharedBuffer = data.readInt32() != 0; 932 sp<IMemory> buffer; 933 if (haveSharedBuffer) { 934 buffer = interface_cast<IMemory>(data.readStrongBinder()); 935 } 936 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 937 pid_t tid = (pid_t) data.readInt32(); 938 int sessionId = data.readInt32(); 939 int clientUid = data.readInt32(); 940 status_t status; 941 sp<IAudioTrack> track; 942 if ((haveSharedBuffer && (buffer == 0)) || 943 ((buffer != 0) && (buffer->pointer() == NULL))) { 944 ALOGW("CREATE_TRACK: cannot retrieve shared memory"); 945 status = DEAD_OBJECT; 946 } else { 947 track = createTrack( 948 (audio_stream_type_t) streamType, sampleRate, format, 949 channelMask, &frameCount, &flags, buffer, output, tid, 950 &sessionId, clientUid, &status); 951 LOG_ALWAYS_FATAL_IF((track != 0) != (status == NO_ERROR)); 952 } 953 reply->writeInt64(frameCount); 954 reply->writeInt32(flags); 955 reply->writeInt32(sessionId); 956 reply->writeInt32(status); 957 reply->writeStrongBinder(IInterface::asBinder(track)); 958 return NO_ERROR; 959 } break; 960 case OPEN_RECORD: { 961 CHECK_INTERFACE(IAudioFlinger, data, reply); 962 audio_io_handle_t input = (audio_io_handle_t) data.readInt32(); 963 uint32_t sampleRate = data.readInt32(); 964 audio_format_t format = (audio_format_t) data.readInt32(); 965 audio_channel_mask_t channelMask = data.readInt32(); 966 const String16& opPackageName = data.readString16(); 967 size_t frameCount = data.readInt64(); 968 track_flags_t flags = (track_flags_t) data.readInt32(); 969 pid_t tid = (pid_t) data.readInt32(); 970 int clientUid = data.readInt32(); 971 int sessionId = data.readInt32(); 972 size_t notificationFrames = data.readInt64(); 973 sp<IMemory> cblk; 974 sp<IMemory> buffers; 975 status_t status; 976 sp<IAudioRecord> record = openRecord(input, 977 sampleRate, format, channelMask, opPackageName, &frameCount, &flags, tid, 978 clientUid, &sessionId, ¬ificationFrames, cblk, buffers, &status); 979 LOG_ALWAYS_FATAL_IF((record != 0) != (status == NO_ERROR)); 980 reply->writeInt64(frameCount); 981 reply->writeInt32(flags); 982 reply->writeInt32(sessionId); 983 reply->writeInt64(notificationFrames); 984 reply->writeInt32(status); 985 reply->writeStrongBinder(IInterface::asBinder(record)); 986 reply->writeStrongBinder(IInterface::asBinder(cblk)); 987 reply->writeStrongBinder(IInterface::asBinder(buffers)); 988 return NO_ERROR; 989 } break; 990 case SAMPLE_RATE: { 991 CHECK_INTERFACE(IAudioFlinger, data, reply); 992 reply->writeInt32( sampleRate((audio_io_handle_t) data.readInt32()) ); 993 return NO_ERROR; 994 } break; 995 case FORMAT: { 996 CHECK_INTERFACE(IAudioFlinger, data, reply); 997 reply->writeInt32( format((audio_io_handle_t) data.readInt32()) ); 998 return NO_ERROR; 999 } break; 1000 case FRAME_COUNT: { 1001 CHECK_INTERFACE(IAudioFlinger, data, reply); 1002 reply->writeInt64( frameCount((audio_io_handle_t) data.readInt32()) ); 1003 return NO_ERROR; 1004 } break; 1005 case LATENCY: { 1006 CHECK_INTERFACE(IAudioFlinger, data, reply); 1007 reply->writeInt32( latency((audio_io_handle_t) data.readInt32()) ); 1008 return NO_ERROR; 1009 } break; 1010 case SET_MASTER_VOLUME: { 1011 CHECK_INTERFACE(IAudioFlinger, data, reply); 1012 reply->writeInt32( setMasterVolume(data.readFloat()) ); 1013 return NO_ERROR; 1014 } break; 1015 case SET_MASTER_MUTE: { 1016 CHECK_INTERFACE(IAudioFlinger, data, reply); 1017 reply->writeInt32( setMasterMute(data.readInt32()) ); 1018 return NO_ERROR; 1019 } break; 1020 case MASTER_VOLUME: { 1021 CHECK_INTERFACE(IAudioFlinger, data, reply); 1022 reply->writeFloat( masterVolume() ); 1023 return NO_ERROR; 1024 } break; 1025 case MASTER_MUTE: { 1026 CHECK_INTERFACE(IAudioFlinger, data, reply); 1027 reply->writeInt32( masterMute() ); 1028 return NO_ERROR; 1029 } break; 1030 case SET_STREAM_VOLUME: { 1031 CHECK_INTERFACE(IAudioFlinger, data, reply); 1032 int stream = data.readInt32(); 1033 float volume = data.readFloat(); 1034 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 1035 reply->writeInt32( setStreamVolume((audio_stream_type_t) stream, volume, output) ); 1036 return NO_ERROR; 1037 } break; 1038 case SET_STREAM_MUTE: { 1039 CHECK_INTERFACE(IAudioFlinger, data, reply); 1040 int stream = data.readInt32(); 1041 reply->writeInt32( setStreamMute((audio_stream_type_t) stream, data.readInt32()) ); 1042 return NO_ERROR; 1043 } break; 1044 case STREAM_VOLUME: { 1045 CHECK_INTERFACE(IAudioFlinger, data, reply); 1046 int stream = data.readInt32(); 1047 int output = data.readInt32(); 1048 reply->writeFloat( streamVolume((audio_stream_type_t) stream, output) ); 1049 return NO_ERROR; 1050 } break; 1051 case STREAM_MUTE: { 1052 CHECK_INTERFACE(IAudioFlinger, data, reply); 1053 int stream = data.readInt32(); 1054 reply->writeInt32( streamMute((audio_stream_type_t) stream) ); 1055 return NO_ERROR; 1056 } break; 1057 case SET_MODE: { 1058 CHECK_INTERFACE(IAudioFlinger, data, reply); 1059 audio_mode_t mode = (audio_mode_t) data.readInt32(); 1060 reply->writeInt32( setMode(mode) ); 1061 return NO_ERROR; 1062 } break; 1063 case SET_MIC_MUTE: { 1064 CHECK_INTERFACE(IAudioFlinger, data, reply); 1065 int state = data.readInt32(); 1066 reply->writeInt32( setMicMute(state) ); 1067 return NO_ERROR; 1068 } break; 1069 case GET_MIC_MUTE: { 1070 CHECK_INTERFACE(IAudioFlinger, data, reply); 1071 reply->writeInt32( getMicMute() ); 1072 return NO_ERROR; 1073 } break; 1074 case SET_PARAMETERS: { 1075 CHECK_INTERFACE(IAudioFlinger, data, reply); 1076 audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32(); 1077 String8 keyValuePairs(data.readString8()); 1078 reply->writeInt32(setParameters(ioHandle, keyValuePairs)); 1079 return NO_ERROR; 1080 } break; 1081 case GET_PARAMETERS: { 1082 CHECK_INTERFACE(IAudioFlinger, data, reply); 1083 audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32(); 1084 String8 keys(data.readString8()); 1085 reply->writeString8(getParameters(ioHandle, keys)); 1086 return NO_ERROR; 1087 } break; 1088 1089 case REGISTER_CLIENT: { 1090 CHECK_INTERFACE(IAudioFlinger, data, reply); 1091 sp<IAudioFlingerClient> client = interface_cast<IAudioFlingerClient>( 1092 data.readStrongBinder()); 1093 registerClient(client); 1094 return NO_ERROR; 1095 } break; 1096 case GET_INPUTBUFFERSIZE: { 1097 CHECK_INTERFACE(IAudioFlinger, data, reply); 1098 uint32_t sampleRate = data.readInt32(); 1099 audio_format_t format = (audio_format_t) data.readInt32(); 1100 audio_channel_mask_t channelMask = data.readInt32(); 1101 reply->writeInt64( getInputBufferSize(sampleRate, format, channelMask) ); 1102 return NO_ERROR; 1103 } break; 1104 case OPEN_OUTPUT: { 1105 CHECK_INTERFACE(IAudioFlinger, data, reply); 1106 audio_module_handle_t module = (audio_module_handle_t)data.readInt32(); 1107 audio_config_t config; 1108 data.read(&config, sizeof(audio_config_t)); 1109 audio_devices_t devices = (audio_devices_t)data.readInt32(); 1110 String8 address(data.readString8()); 1111 audio_output_flags_t flags = (audio_output_flags_t) data.readInt32(); 1112 uint32_t latencyMs; 1113 audio_io_handle_t output; 1114 status_t status = openOutput(module, &output, &config, 1115 &devices, address, &latencyMs, flags); 1116 ALOGV("OPEN_OUTPUT output, %d", output); 1117 reply->writeInt32((int32_t)status); 1118 if (status == NO_ERROR) { 1119 reply->writeInt32((int32_t)output); 1120 reply->write(&config, sizeof(audio_config_t)); 1121 reply->writeInt32(devices); 1122 reply->writeInt32(latencyMs); 1123 } 1124 return NO_ERROR; 1125 } break; 1126 case OPEN_DUPLICATE_OUTPUT: { 1127 CHECK_INTERFACE(IAudioFlinger, data, reply); 1128 audio_io_handle_t output1 = (audio_io_handle_t) data.readInt32(); 1129 audio_io_handle_t output2 = (audio_io_handle_t) data.readInt32(); 1130 reply->writeInt32((int32_t) openDuplicateOutput(output1, output2)); 1131 return NO_ERROR; 1132 } break; 1133 case CLOSE_OUTPUT: { 1134 CHECK_INTERFACE(IAudioFlinger, data, reply); 1135 reply->writeInt32(closeOutput((audio_io_handle_t) data.readInt32())); 1136 return NO_ERROR; 1137 } break; 1138 case SUSPEND_OUTPUT: { 1139 CHECK_INTERFACE(IAudioFlinger, data, reply); 1140 reply->writeInt32(suspendOutput((audio_io_handle_t) data.readInt32())); 1141 return NO_ERROR; 1142 } break; 1143 case RESTORE_OUTPUT: { 1144 CHECK_INTERFACE(IAudioFlinger, data, reply); 1145 reply->writeInt32(restoreOutput((audio_io_handle_t) data.readInt32())); 1146 return NO_ERROR; 1147 } break; 1148 case OPEN_INPUT: { 1149 CHECK_INTERFACE(IAudioFlinger, data, reply); 1150 audio_module_handle_t module = (audio_module_handle_t)data.readInt32(); 1151 audio_io_handle_t input = (audio_io_handle_t)data.readInt32(); 1152 audio_config_t config; 1153 data.read(&config, sizeof(audio_config_t)); 1154 audio_devices_t device = (audio_devices_t)data.readInt32(); 1155 String8 address(data.readString8()); 1156 audio_source_t source = (audio_source_t)data.readInt32(); 1157 audio_input_flags_t flags = (audio_input_flags_t) data.readInt32(); 1158 1159 status_t status = openInput(module, &input, &config, 1160 &device, address, source, flags); 1161 reply->writeInt32((int32_t) status); 1162 if (status == NO_ERROR) { 1163 reply->writeInt32((int32_t) input); 1164 reply->write(&config, sizeof(audio_config_t)); 1165 reply->writeInt32(device); 1166 } 1167 return NO_ERROR; 1168 } break; 1169 case CLOSE_INPUT: { 1170 CHECK_INTERFACE(IAudioFlinger, data, reply); 1171 reply->writeInt32(closeInput((audio_io_handle_t) data.readInt32())); 1172 return NO_ERROR; 1173 } break; 1174 case INVALIDATE_STREAM: { 1175 CHECK_INTERFACE(IAudioFlinger, data, reply); 1176 audio_stream_type_t stream = (audio_stream_type_t) data.readInt32(); 1177 reply->writeInt32(invalidateStream(stream)); 1178 return NO_ERROR; 1179 } break; 1180 case SET_VOICE_VOLUME: { 1181 CHECK_INTERFACE(IAudioFlinger, data, reply); 1182 float volume = data.readFloat(); 1183 reply->writeInt32( setVoiceVolume(volume) ); 1184 return NO_ERROR; 1185 } break; 1186 case GET_RENDER_POSITION: { 1187 CHECK_INTERFACE(IAudioFlinger, data, reply); 1188 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 1189 uint32_t halFrames; 1190 uint32_t dspFrames; 1191 status_t status = getRenderPosition(&halFrames, &dspFrames, output); 1192 reply->writeInt32(status); 1193 if (status == NO_ERROR) { 1194 reply->writeInt32(halFrames); 1195 reply->writeInt32(dspFrames); 1196 } 1197 return NO_ERROR; 1198 } 1199 case GET_INPUT_FRAMES_LOST: { 1200 CHECK_INTERFACE(IAudioFlinger, data, reply); 1201 audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32(); 1202 reply->writeInt32((int32_t) getInputFramesLost(ioHandle)); 1203 return NO_ERROR; 1204 } break; 1205 case NEW_AUDIO_SESSION_ID: { 1206 CHECK_INTERFACE(IAudioFlinger, data, reply); 1207 reply->writeInt32(newAudioUniqueId()); 1208 return NO_ERROR; 1209 } break; 1210 case ACQUIRE_AUDIO_SESSION_ID: { 1211 CHECK_INTERFACE(IAudioFlinger, data, reply); 1212 int audioSession = data.readInt32(); 1213 int pid = data.readInt32(); 1214 acquireAudioSessionId(audioSession, pid); 1215 return NO_ERROR; 1216 } break; 1217 case RELEASE_AUDIO_SESSION_ID: { 1218 CHECK_INTERFACE(IAudioFlinger, data, reply); 1219 int audioSession = data.readInt32(); 1220 int pid = data.readInt32(); 1221 releaseAudioSessionId(audioSession, pid); 1222 return NO_ERROR; 1223 } break; 1224 case QUERY_NUM_EFFECTS: { 1225 CHECK_INTERFACE(IAudioFlinger, data, reply); 1226 uint32_t numEffects; 1227 status_t status = queryNumberEffects(&numEffects); 1228 reply->writeInt32(status); 1229 if (status == NO_ERROR) { 1230 reply->writeInt32((int32_t)numEffects); 1231 } 1232 return NO_ERROR; 1233 } 1234 case QUERY_EFFECT: { 1235 CHECK_INTERFACE(IAudioFlinger, data, reply); 1236 effect_descriptor_t desc; 1237 status_t status = queryEffect(data.readInt32(), &desc); 1238 reply->writeInt32(status); 1239 if (status == NO_ERROR) { 1240 reply->write(&desc, sizeof(effect_descriptor_t)); 1241 } 1242 return NO_ERROR; 1243 } 1244 case GET_EFFECT_DESCRIPTOR: { 1245 CHECK_INTERFACE(IAudioFlinger, data, reply); 1246 effect_uuid_t uuid; 1247 data.read(&uuid, sizeof(effect_uuid_t)); 1248 effect_descriptor_t desc; 1249 status_t status = getEffectDescriptor(&uuid, &desc); 1250 reply->writeInt32(status); 1251 if (status == NO_ERROR) { 1252 reply->write(&desc, sizeof(effect_descriptor_t)); 1253 } 1254 return NO_ERROR; 1255 } 1256 case CREATE_EFFECT: { 1257 CHECK_INTERFACE(IAudioFlinger, data, reply); 1258 effect_descriptor_t desc; 1259 data.read(&desc, sizeof(effect_descriptor_t)); 1260 sp<IEffectClient> client = interface_cast<IEffectClient>(data.readStrongBinder()); 1261 int32_t priority = data.readInt32(); 1262 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 1263 int sessionId = data.readInt32(); 1264 const String16 opPackageName = data.readString16(); 1265 status_t status; 1266 int id; 1267 int enabled; 1268 1269 sp<IEffect> effect = createEffect(&desc, client, priority, output, sessionId, 1270 opPackageName, &status, &id, &enabled); 1271 reply->writeInt32(status); 1272 reply->writeInt32(id); 1273 reply->writeInt32(enabled); 1274 reply->writeStrongBinder(IInterface::asBinder(effect)); 1275 reply->write(&desc, sizeof(effect_descriptor_t)); 1276 return NO_ERROR; 1277 } break; 1278 case MOVE_EFFECTS: { 1279 CHECK_INTERFACE(IAudioFlinger, data, reply); 1280 int session = data.readInt32(); 1281 audio_io_handle_t srcOutput = (audio_io_handle_t) data.readInt32(); 1282 audio_io_handle_t dstOutput = (audio_io_handle_t) data.readInt32(); 1283 reply->writeInt32(moveEffects(session, srcOutput, dstOutput)); 1284 return NO_ERROR; 1285 } break; 1286 case LOAD_HW_MODULE: { 1287 CHECK_INTERFACE(IAudioFlinger, data, reply); 1288 reply->writeInt32(loadHwModule(data.readCString())); 1289 return NO_ERROR; 1290 } break; 1291 case GET_PRIMARY_OUTPUT_SAMPLING_RATE: { 1292 CHECK_INTERFACE(IAudioFlinger, data, reply); 1293 reply->writeInt32(getPrimaryOutputSamplingRate()); 1294 return NO_ERROR; 1295 } break; 1296 case GET_PRIMARY_OUTPUT_FRAME_COUNT: { 1297 CHECK_INTERFACE(IAudioFlinger, data, reply); 1298 reply->writeInt64(getPrimaryOutputFrameCount()); 1299 return NO_ERROR; 1300 } break; 1301 case SET_LOW_RAM_DEVICE: { 1302 CHECK_INTERFACE(IAudioFlinger, data, reply); 1303 bool isLowRamDevice = data.readInt32() != 0; 1304 reply->writeInt32(setLowRamDevice(isLowRamDevice)); 1305 return NO_ERROR; 1306 } break; 1307 case LIST_AUDIO_PORTS: { 1308 CHECK_INTERFACE(IAudioFlinger, data, reply); 1309 unsigned int numPortsReq = data.readInt32(); 1310 if (numPortsReq > MAX_ITEMS_PER_LIST) { 1311 numPortsReq = MAX_ITEMS_PER_LIST; 1312 } 1313 unsigned int numPorts = numPortsReq; 1314 struct audio_port *ports = 1315 (struct audio_port *)calloc(numPortsReq, 1316 sizeof(struct audio_port)); 1317 if (ports == NULL) { 1318 reply->writeInt32(NO_MEMORY); 1319 reply->writeInt32(0); 1320 return NO_ERROR; 1321 } 1322 status_t status = listAudioPorts(&numPorts, ports); 1323 reply->writeInt32(status); 1324 reply->writeInt32(numPorts); 1325 if (status == NO_ERROR) { 1326 if (numPortsReq > numPorts) { 1327 numPortsReq = numPorts; 1328 } 1329 reply->write(ports, numPortsReq * sizeof(struct audio_port)); 1330 } 1331 free(ports); 1332 return NO_ERROR; 1333 } break; 1334 case GET_AUDIO_PORT: { 1335 CHECK_INTERFACE(IAudioFlinger, data, reply); 1336 struct audio_port port; 1337 data.read(&port, sizeof(struct audio_port)); 1338 status_t status = getAudioPort(&port); 1339 reply->writeInt32(status); 1340 if (status == NO_ERROR) { 1341 reply->write(&port, sizeof(struct audio_port)); 1342 } 1343 return NO_ERROR; 1344 } break; 1345 case CREATE_AUDIO_PATCH: { 1346 CHECK_INTERFACE(IAudioFlinger, data, reply); 1347 struct audio_patch patch; 1348 data.read(&patch, sizeof(struct audio_patch)); 1349 audio_patch_handle_t handle; 1350 data.read(&handle, sizeof(audio_patch_handle_t)); 1351 status_t status = createAudioPatch(&patch, &handle); 1352 reply->writeInt32(status); 1353 if (status == NO_ERROR) { 1354 reply->write(&handle, sizeof(audio_patch_handle_t)); 1355 } 1356 return NO_ERROR; 1357 } break; 1358 case RELEASE_AUDIO_PATCH: { 1359 CHECK_INTERFACE(IAudioFlinger, data, reply); 1360 audio_patch_handle_t handle; 1361 data.read(&handle, sizeof(audio_patch_handle_t)); 1362 status_t status = releaseAudioPatch(handle); 1363 reply->writeInt32(status); 1364 return NO_ERROR; 1365 } break; 1366 case LIST_AUDIO_PATCHES: { 1367 CHECK_INTERFACE(IAudioFlinger, data, reply); 1368 unsigned int numPatchesReq = data.readInt32(); 1369 if (numPatchesReq > MAX_ITEMS_PER_LIST) { 1370 numPatchesReq = MAX_ITEMS_PER_LIST; 1371 } 1372 unsigned int numPatches = numPatchesReq; 1373 struct audio_patch *patches = 1374 (struct audio_patch *)calloc(numPatchesReq, 1375 sizeof(struct audio_patch)); 1376 if (patches == NULL) { 1377 reply->writeInt32(NO_MEMORY); 1378 reply->writeInt32(0); 1379 return NO_ERROR; 1380 } 1381 status_t status = listAudioPatches(&numPatches, patches); 1382 reply->writeInt32(status); 1383 reply->writeInt32(numPatches); 1384 if (status == NO_ERROR) { 1385 if (numPatchesReq > numPatches) { 1386 numPatchesReq = numPatches; 1387 } 1388 reply->write(patches, numPatchesReq * sizeof(struct audio_patch)); 1389 } 1390 free(patches); 1391 return NO_ERROR; 1392 } break; 1393 case SET_AUDIO_PORT_CONFIG: { 1394 CHECK_INTERFACE(IAudioFlinger, data, reply); 1395 struct audio_port_config config; 1396 data.read(&config, sizeof(struct audio_port_config)); 1397 status_t status = setAudioPortConfig(&config); 1398 reply->writeInt32(status); 1399 return NO_ERROR; 1400 } break; 1401 case GET_AUDIO_HW_SYNC: { 1402 CHECK_INTERFACE(IAudioFlinger, data, reply); 1403 reply->writeInt32(getAudioHwSyncForSession((audio_session_t)data.readInt32())); 1404 return NO_ERROR; 1405 } break; 1406 case SYSTEM_READY: { 1407 CHECK_INTERFACE(IAudioFlinger, data, reply); 1408 systemReady(); 1409 return NO_ERROR; 1410 } break; 1411 default: 1412 return BBinder::onTransact(code, data, reply, flags); 1413 } 1414 } 1415 1416 // ---------------------------------------------------------------------------- 1417 1418 } // namespace android 1419
