1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#define LOG_TAG "legacy_audio_hw_hal" 18//#define LOG_NDEBUG 0 19 20#include <stdint.h> 21 22#include <hardware/hardware.h> 23#include <system/audio.h> 24#include <hardware/audio.h> 25 26#include <hardware_legacy/AudioHardwareInterface.h> 27#include <hardware_legacy/AudioSystemLegacy.h> 28 29namespace android_audio_legacy { 30 31class AudioHardwareInterface; 32 33extern "C" { 34 35struct legacy_audio_module { 36 struct audio_module module; 37}; 38 39struct legacy_audio_device { 40 struct audio_hw_device device; 41 42 AudioHardwareInterface *hwif; 43}; 44 45struct legacy_stream_out { 46 struct audio_stream_out stream; 47 48 AudioStreamOut *legacy_out; 49}; 50 51struct legacy_stream_in { 52 struct audio_stream_in stream; 53 54 AudioStreamIn *legacy_in; 55}; 56 57 58enum { 59 HAL_API_REV_1_0, 60 HAL_API_REV_2_0, 61 HAL_API_REV_NUM 62} hal_api_rev; 63 64static uint32_t audio_device_conv_table[][HAL_API_REV_NUM] = 65{ 66 /* output devices */ 67 { AudioSystem::DEVICE_OUT_EARPIECE, AUDIO_DEVICE_OUT_EARPIECE }, 68 { AudioSystem::DEVICE_OUT_SPEAKER, AUDIO_DEVICE_OUT_SPEAKER }, 69 { AudioSystem::DEVICE_OUT_WIRED_HEADSET, AUDIO_DEVICE_OUT_WIRED_HEADSET }, 70 { AudioSystem::DEVICE_OUT_WIRED_HEADPHONE, AUDIO_DEVICE_OUT_WIRED_HEADPHONE }, 71 { AudioSystem::DEVICE_OUT_BLUETOOTH_SCO, AUDIO_DEVICE_OUT_BLUETOOTH_SCO }, 72 { AudioSystem::DEVICE_OUT_BLUETOOTH_SCO_HEADSET, AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET }, 73 { AudioSystem::DEVICE_OUT_BLUETOOTH_SCO_CARKIT, AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT }, 74 { AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP, AUDIO_DEVICE_OUT_BLUETOOTH_A2DP }, 75 { AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES, AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES }, 76 { AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER, AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER }, 77 { AudioSystem::DEVICE_OUT_AUX_DIGITAL, AUDIO_DEVICE_OUT_AUX_DIGITAL }, 78 { AudioSystem::DEVICE_OUT_ANLG_DOCK_HEADSET, AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET }, 79 { AudioSystem::DEVICE_OUT_DGTL_DOCK_HEADSET, AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET }, 80 { AudioSystem::DEVICE_OUT_DEFAULT, AUDIO_DEVICE_OUT_DEFAULT }, 81 /* input devices */ 82 { AudioSystem::DEVICE_IN_COMMUNICATION, AUDIO_DEVICE_IN_COMMUNICATION }, 83 { AudioSystem::DEVICE_IN_AMBIENT, AUDIO_DEVICE_IN_AMBIENT }, 84 { AudioSystem::DEVICE_IN_BUILTIN_MIC, AUDIO_DEVICE_IN_BUILTIN_MIC }, 85 { AudioSystem::DEVICE_IN_BLUETOOTH_SCO_HEADSET, AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET }, 86 { AudioSystem::DEVICE_IN_WIRED_HEADSET, AUDIO_DEVICE_IN_WIRED_HEADSET }, 87 { AudioSystem::DEVICE_IN_AUX_DIGITAL, AUDIO_DEVICE_IN_AUX_DIGITAL }, 88 { AudioSystem::DEVICE_IN_VOICE_CALL, AUDIO_DEVICE_IN_VOICE_CALL }, 89 { AudioSystem::DEVICE_IN_BACK_MIC, AUDIO_DEVICE_IN_BACK_MIC }, 90 { AudioSystem::DEVICE_IN_DEFAULT, AUDIO_DEVICE_IN_DEFAULT }, 91}; 92 93static uint32_t convert_audio_device(uint32_t from_device, int from_rev, int to_rev) 94{ 95 const uint32_t k_num_devices = sizeof(audio_device_conv_table)/sizeof(uint32_t)/HAL_API_REV_NUM; 96 uint32_t to_device = AUDIO_DEVICE_NONE; 97 uint32_t in_bit = 0; 98 99 if (from_rev != HAL_API_REV_1_0) { 100 in_bit = from_device & AUDIO_DEVICE_BIT_IN; 101 from_device &= ~AUDIO_DEVICE_BIT_IN; 102 } 103 104 while (from_device) { 105 uint32_t i = 31 - __builtin_clz(from_device); 106 uint32_t cur_device = (1 << i) | in_bit; 107 108 for (i = 0; i < k_num_devices; i++) { 109 if (audio_device_conv_table[i][from_rev] == cur_device) { 110 to_device |= audio_device_conv_table[i][to_rev]; 111 break; 112 } 113 } 114 from_device &= ~cur_device; 115 } 116 return to_device; 117} 118 119 120/** audio_stream_out implementation **/ 121static uint32_t out_get_sample_rate(const struct audio_stream *stream) 122{ 123 const struct legacy_stream_out *out = 124 reinterpret_cast<const struct legacy_stream_out *>(stream); 125 return out->legacy_out->sampleRate(); 126} 127 128static int out_set_sample_rate(struct audio_stream *stream, uint32_t rate) 129{ 130 struct legacy_stream_out *out = 131 reinterpret_cast<struct legacy_stream_out *>(stream); 132 133 ALOGE("(%s:%d) %s: Implement me!", __FILE__, __LINE__, __func__); 134 /* TODO: implement this */ 135 return 0; 136} 137 138static size_t out_get_buffer_size(const struct audio_stream *stream) 139{ 140 const struct legacy_stream_out *out = 141 reinterpret_cast<const struct legacy_stream_out *>(stream); 142 return out->legacy_out->bufferSize(); 143} 144 145static audio_channel_mask_t out_get_channels(const struct audio_stream *stream) 146{ 147 const struct legacy_stream_out *out = 148 reinterpret_cast<const struct legacy_stream_out *>(stream); 149 return (audio_channel_mask_t) out->legacy_out->channels(); 150} 151 152static audio_format_t out_get_format(const struct audio_stream *stream) 153{ 154 const struct legacy_stream_out *out = 155 reinterpret_cast<const struct legacy_stream_out *>(stream); 156 // legacy API, don't change return type 157 return (audio_format_t) out->legacy_out->format(); 158} 159 160static int out_set_format(struct audio_stream *stream, audio_format_t format) 161{ 162 struct legacy_stream_out *out = 163 reinterpret_cast<struct legacy_stream_out *>(stream); 164 ALOGE("(%s:%d) %s: Implement me!", __FILE__, __LINE__, __func__); 165 /* TODO: implement me */ 166 return 0; 167} 168 169static int out_standby(struct audio_stream *stream) 170{ 171 struct legacy_stream_out *out = 172 reinterpret_cast<struct legacy_stream_out *>(stream); 173 return out->legacy_out->standby(); 174} 175 176static int out_dump(const struct audio_stream *stream, int fd) 177{ 178 const struct legacy_stream_out *out = 179 reinterpret_cast<const struct legacy_stream_out *>(stream); 180 Vector<String16> args; 181 return out->legacy_out->dump(fd, args); 182} 183 184static int out_set_parameters(struct audio_stream *stream, const char *kvpairs) 185{ 186 struct legacy_stream_out *out = 187 reinterpret_cast<struct legacy_stream_out *>(stream); 188 int val; 189 String8 s8 = String8(kvpairs); 190 AudioParameter parms = AudioParameter(String8(kvpairs)); 191 192 if (parms.getInt(String8(AUDIO_PARAMETER_STREAM_ROUTING), val) == NO_ERROR) { 193 val = convert_audio_device(val, HAL_API_REV_2_0, HAL_API_REV_1_0); 194 parms.remove(String8(AUDIO_PARAMETER_STREAM_ROUTING)); 195 parms.addInt(String8(AUDIO_PARAMETER_STREAM_ROUTING), val); 196 s8 = parms.toString(); 197 } 198 199 return out->legacy_out->setParameters(s8); 200} 201 202static char * out_get_parameters(const struct audio_stream *stream, const char *keys) 203{ 204 const struct legacy_stream_out *out = 205 reinterpret_cast<const struct legacy_stream_out *>(stream); 206 String8 s8; 207 int val; 208 209 s8 = out->legacy_out->getParameters(String8(keys)); 210 211 AudioParameter parms = AudioParameter(s8); 212 if (parms.getInt(String8(AUDIO_PARAMETER_STREAM_ROUTING), val) == NO_ERROR) { 213 val = convert_audio_device(val, HAL_API_REV_1_0, HAL_API_REV_2_0); 214 parms.remove(String8(AUDIO_PARAMETER_STREAM_ROUTING)); 215 parms.addInt(String8(AUDIO_PARAMETER_STREAM_ROUTING), val); 216 s8 = parms.toString(); 217 } 218 219 return strdup(s8.string()); 220} 221 222static uint32_t out_get_latency(const struct audio_stream_out *stream) 223{ 224 const struct legacy_stream_out *out = 225 reinterpret_cast<const struct legacy_stream_out *>(stream); 226 return out->legacy_out->latency(); 227} 228 229static int out_set_volume(struct audio_stream_out *stream, float left, 230 float right) 231{ 232 struct legacy_stream_out *out = 233 reinterpret_cast<struct legacy_stream_out *>(stream); 234 return out->legacy_out->setVolume(left, right); 235} 236 237static ssize_t out_write(struct audio_stream_out *stream, const void* buffer, 238 size_t bytes) 239{ 240 struct legacy_stream_out *out = 241 reinterpret_cast<struct legacy_stream_out *>(stream); 242 return out->legacy_out->write(buffer, bytes); 243} 244 245static int out_get_render_position(const struct audio_stream_out *stream, 246 uint32_t *dsp_frames) 247{ 248 const struct legacy_stream_out *out = 249 reinterpret_cast<const struct legacy_stream_out *>(stream); 250 return out->legacy_out->getRenderPosition(dsp_frames); 251} 252 253static int out_get_next_write_timestamp(const struct audio_stream_out *stream, 254 int64_t *timestamp) 255{ 256 const struct legacy_stream_out *out = 257 reinterpret_cast<const struct legacy_stream_out *>(stream); 258 return out->legacy_out->getNextWriteTimestamp(timestamp); 259} 260 261static int out_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect) 262{ 263 return 0; 264} 265 266static int out_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect) 267{ 268 return 0; 269} 270 271/** audio_stream_in implementation **/ 272static uint32_t in_get_sample_rate(const struct audio_stream *stream) 273{ 274 const struct legacy_stream_in *in = 275 reinterpret_cast<const struct legacy_stream_in *>(stream); 276 return in->legacy_in->sampleRate(); 277} 278 279static int in_set_sample_rate(struct audio_stream *stream, uint32_t rate) 280{ 281 struct legacy_stream_in *in = 282 reinterpret_cast<struct legacy_stream_in *>(stream); 283 284 ALOGE("(%s:%d) %s: Implement me!", __FILE__, __LINE__, __func__); 285 /* TODO: implement this */ 286 return 0; 287} 288 289static size_t in_get_buffer_size(const struct audio_stream *stream) 290{ 291 const struct legacy_stream_in *in = 292 reinterpret_cast<const struct legacy_stream_in *>(stream); 293 return in->legacy_in->bufferSize(); 294} 295 296static audio_channel_mask_t in_get_channels(const struct audio_stream *stream) 297{ 298 const struct legacy_stream_in *in = 299 reinterpret_cast<const struct legacy_stream_in *>(stream); 300 return (audio_channel_mask_t) in->legacy_in->channels(); 301} 302 303static audio_format_t in_get_format(const struct audio_stream *stream) 304{ 305 const struct legacy_stream_in *in = 306 reinterpret_cast<const struct legacy_stream_in *>(stream); 307 // legacy API, don't change return type 308 return (audio_format_t) in->legacy_in->format(); 309} 310 311static int in_set_format(struct audio_stream *stream, audio_format_t format) 312{ 313 struct legacy_stream_in *in = 314 reinterpret_cast<struct legacy_stream_in *>(stream); 315 ALOGE("(%s:%d) %s: Implement me!", __FILE__, __LINE__, __func__); 316 /* TODO: implement me */ 317 return 0; 318} 319 320static int in_standby(struct audio_stream *stream) 321{ 322 struct legacy_stream_in *in = reinterpret_cast<struct legacy_stream_in *>(stream); 323 return in->legacy_in->standby(); 324} 325 326static int in_dump(const struct audio_stream *stream, int fd) 327{ 328 const struct legacy_stream_in *in = 329 reinterpret_cast<const struct legacy_stream_in *>(stream); 330 Vector<String16> args; 331 return in->legacy_in->dump(fd, args); 332} 333 334static int in_set_parameters(struct audio_stream *stream, const char *kvpairs) 335{ 336 struct legacy_stream_in *in = 337 reinterpret_cast<struct legacy_stream_in *>(stream); 338 int val; 339 AudioParameter parms = AudioParameter(String8(kvpairs)); 340 String8 s8 = String8(kvpairs); 341 342 if (parms.getInt(String8(AUDIO_PARAMETER_STREAM_ROUTING), val) == NO_ERROR) { 343 val = convert_audio_device(val, HAL_API_REV_2_0, HAL_API_REV_1_0); 344 parms.remove(String8(AUDIO_PARAMETER_STREAM_ROUTING)); 345 parms.addInt(String8(AUDIO_PARAMETER_STREAM_ROUTING), val); 346 s8 = parms.toString(); 347 } 348 349 return in->legacy_in->setParameters(s8); 350} 351 352static char * in_get_parameters(const struct audio_stream *stream, 353 const char *keys) 354{ 355 const struct legacy_stream_in *in = 356 reinterpret_cast<const struct legacy_stream_in *>(stream); 357 String8 s8; 358 int val; 359 360 s8 = in->legacy_in->getParameters(String8(keys)); 361 362 AudioParameter parms = AudioParameter(s8); 363 if (parms.getInt(String8(AUDIO_PARAMETER_STREAM_ROUTING), val) == NO_ERROR) { 364 val = convert_audio_device(val, HAL_API_REV_1_0, HAL_API_REV_2_0); 365 parms.remove(String8(AUDIO_PARAMETER_STREAM_ROUTING)); 366 parms.addInt(String8(AUDIO_PARAMETER_STREAM_ROUTING), val); 367 s8 = parms.toString(); 368 } 369 370 return strdup(s8.string()); 371} 372 373static int in_set_gain(struct audio_stream_in *stream, float gain) 374{ 375 struct legacy_stream_in *in = 376 reinterpret_cast<struct legacy_stream_in *>(stream); 377 return in->legacy_in->setGain(gain); 378} 379 380static ssize_t in_read(struct audio_stream_in *stream, void* buffer, 381 size_t bytes) 382{ 383 struct legacy_stream_in *in = 384 reinterpret_cast<struct legacy_stream_in *>(stream); 385 return in->legacy_in->read(buffer, bytes); 386} 387 388static uint32_t in_get_input_frames_lost(struct audio_stream_in *stream) 389{ 390 struct legacy_stream_in *in = 391 reinterpret_cast<struct legacy_stream_in *>(stream); 392 return in->legacy_in->getInputFramesLost(); 393} 394 395static int in_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect) 396{ 397 const struct legacy_stream_in *in = 398 reinterpret_cast<const struct legacy_stream_in *>(stream); 399 return in->legacy_in->addAudioEffect(effect); 400} 401 402static int in_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect) 403{ 404 const struct legacy_stream_in *in = 405 reinterpret_cast<const struct legacy_stream_in *>(stream); 406 return in->legacy_in->removeAudioEffect(effect); 407} 408 409/** audio_hw_device implementation **/ 410static inline struct legacy_audio_device * to_ladev(struct audio_hw_device *dev) 411{ 412 return reinterpret_cast<struct legacy_audio_device *>(dev); 413} 414 415static inline const struct legacy_audio_device * to_cladev(const struct audio_hw_device *dev) 416{ 417 return reinterpret_cast<const struct legacy_audio_device *>(dev); 418} 419 420static int adev_init_check(const struct audio_hw_device *dev) 421{ 422 const struct legacy_audio_device *ladev = to_cladev(dev); 423 424 return ladev->hwif->initCheck(); 425} 426 427static int adev_set_voice_volume(struct audio_hw_device *dev, float volume) 428{ 429 struct legacy_audio_device *ladev = to_ladev(dev); 430 return ladev->hwif->setVoiceVolume(volume); 431} 432 433static int adev_set_master_volume(struct audio_hw_device *dev, float volume) 434{ 435 struct legacy_audio_device *ladev = to_ladev(dev); 436 return ladev->hwif->setMasterVolume(volume); 437} 438 439static int adev_get_master_volume(struct audio_hw_device *dev, float* volume) 440{ 441 struct legacy_audio_device *ladev = to_ladev(dev); 442 return ladev->hwif->getMasterVolume(volume); 443} 444 445static int adev_set_mode(struct audio_hw_device *dev, audio_mode_t mode) 446{ 447 struct legacy_audio_device *ladev = to_ladev(dev); 448 // as this is the legacy API, don't change it to use audio_mode_t instead of int 449 return ladev->hwif->setMode((int) mode); 450} 451 452static int adev_set_mic_mute(struct audio_hw_device *dev, bool state) 453{ 454 struct legacy_audio_device *ladev = to_ladev(dev); 455 return ladev->hwif->setMicMute(state); 456} 457 458static int adev_get_mic_mute(const struct audio_hw_device *dev, bool *state) 459{ 460 const struct legacy_audio_device *ladev = to_cladev(dev); 461 return ladev->hwif->getMicMute(state); 462} 463 464static int adev_set_parameters(struct audio_hw_device *dev, const char *kvpairs) 465{ 466 struct legacy_audio_device *ladev = to_ladev(dev); 467 return ladev->hwif->setParameters(String8(kvpairs)); 468} 469 470static char * adev_get_parameters(const struct audio_hw_device *dev, 471 const char *keys) 472{ 473 const struct legacy_audio_device *ladev = to_cladev(dev); 474 String8 s8; 475 476 s8 = ladev->hwif->getParameters(String8(keys)); 477 return strdup(s8.string()); 478} 479 480static size_t adev_get_input_buffer_size(const struct audio_hw_device *dev, 481 const struct audio_config *config) 482{ 483 const struct legacy_audio_device *ladev = to_cladev(dev); 484 return ladev->hwif->getInputBufferSize(config->sample_rate, (int) config->format, 485 audio_channel_count_from_in_mask(config->channel_mask)); 486} 487 488static int adev_open_output_stream(struct audio_hw_device *dev, 489 audio_io_handle_t handle, 490 audio_devices_t devices, 491 audio_output_flags_t flags, 492 struct audio_config *config, 493 struct audio_stream_out **stream_out, 494 const char *address __unused) 495{ 496 struct legacy_audio_device *ladev = to_ladev(dev); 497 status_t status; 498 struct legacy_stream_out *out; 499 int ret; 500 501 out = (struct legacy_stream_out *)calloc(1, sizeof(*out)); 502 if (!out) 503 return -ENOMEM; 504 505 devices = convert_audio_device(devices, HAL_API_REV_2_0, HAL_API_REV_1_0); 506 507 out->legacy_out = ladev->hwif->openOutputStreamWithFlags(devices, flags, 508 (int *) &config->format, 509 &config->channel_mask, 510 &config->sample_rate, &status); 511 if (!out->legacy_out) { 512 ret = status; 513 goto err_open; 514 } 515 516 out->stream.common.get_sample_rate = out_get_sample_rate; 517 out->stream.common.set_sample_rate = out_set_sample_rate; 518 out->stream.common.get_buffer_size = out_get_buffer_size; 519 out->stream.common.get_channels = out_get_channels; 520 out->stream.common.get_format = out_get_format; 521 out->stream.common.set_format = out_set_format; 522 out->stream.common.standby = out_standby; 523 out->stream.common.dump = out_dump; 524 out->stream.common.set_parameters = out_set_parameters; 525 out->stream.common.get_parameters = out_get_parameters; 526 out->stream.common.add_audio_effect = out_add_audio_effect; 527 out->stream.common.remove_audio_effect = out_remove_audio_effect; 528 out->stream.get_latency = out_get_latency; 529 out->stream.set_volume = out_set_volume; 530 out->stream.write = out_write; 531 out->stream.get_render_position = out_get_render_position; 532 out->stream.get_next_write_timestamp = out_get_next_write_timestamp; 533 534 *stream_out = &out->stream; 535 return 0; 536 537err_open: 538 free(out); 539 *stream_out = NULL; 540 return ret; 541} 542 543static void adev_close_output_stream(struct audio_hw_device *dev, 544 struct audio_stream_out* stream) 545{ 546 struct legacy_audio_device *ladev = to_ladev(dev); 547 struct legacy_stream_out *out = reinterpret_cast<struct legacy_stream_out *>(stream); 548 549 ladev->hwif->closeOutputStream(out->legacy_out); 550 free(out); 551} 552 553/** This method creates and opens the audio hardware input stream */ 554static int adev_open_input_stream(struct audio_hw_device *dev, 555 audio_io_handle_t handle, 556 audio_devices_t devices, 557 struct audio_config *config, 558 struct audio_stream_in **stream_in, 559 audio_input_flags_t flags __unused, 560 const char *address __unused, 561 audio_source_t source __unused) 562{ 563 struct legacy_audio_device *ladev = to_ladev(dev); 564 status_t status; 565 struct legacy_stream_in *in; 566 int ret; 567 568 in = (struct legacy_stream_in *)calloc(1, sizeof(*in)); 569 if (!in) 570 return -ENOMEM; 571 572 devices = convert_audio_device(devices, HAL_API_REV_2_0, HAL_API_REV_1_0); 573 574 in->legacy_in = ladev->hwif->openInputStream(devices, (int *) &config->format, 575 &config->channel_mask, &config->sample_rate, 576 &status, (AudioSystem::audio_in_acoustics)0); 577 if (!in->legacy_in) { 578 ret = status; 579 goto err_open; 580 } 581 582 in->stream.common.get_sample_rate = in_get_sample_rate; 583 in->stream.common.set_sample_rate = in_set_sample_rate; 584 in->stream.common.get_buffer_size = in_get_buffer_size; 585 in->stream.common.get_channels = in_get_channels; 586 in->stream.common.get_format = in_get_format; 587 in->stream.common.set_format = in_set_format; 588 in->stream.common.standby = in_standby; 589 in->stream.common.dump = in_dump; 590 in->stream.common.set_parameters = in_set_parameters; 591 in->stream.common.get_parameters = in_get_parameters; 592 in->stream.common.add_audio_effect = in_add_audio_effect; 593 in->stream.common.remove_audio_effect = in_remove_audio_effect; 594 in->stream.set_gain = in_set_gain; 595 in->stream.read = in_read; 596 in->stream.get_input_frames_lost = in_get_input_frames_lost; 597 598 *stream_in = &in->stream; 599 return 0; 600 601err_open: 602 free(in); 603 *stream_in = NULL; 604 return ret; 605} 606 607static void adev_close_input_stream(struct audio_hw_device *dev, 608 struct audio_stream_in *stream) 609{ 610 struct legacy_audio_device *ladev = to_ladev(dev); 611 struct legacy_stream_in *in = 612 reinterpret_cast<struct legacy_stream_in *>(stream); 613 614 ladev->hwif->closeInputStream(in->legacy_in); 615 free(in); 616} 617 618static int adev_dump(const struct audio_hw_device *dev, int fd) 619{ 620 const struct legacy_audio_device *ladev = to_cladev(dev); 621 Vector<String16> args; 622 623 return ladev->hwif->dumpState(fd, args); 624} 625 626static int legacy_adev_close(hw_device_t* device) 627{ 628 struct audio_hw_device *hwdev = 629 reinterpret_cast<struct audio_hw_device *>(device); 630 struct legacy_audio_device *ladev = to_ladev(hwdev); 631 632 if (!ladev) 633 return 0; 634 635 if (ladev->hwif) 636 delete ladev->hwif; 637 638 free(ladev); 639 return 0; 640} 641 642static int legacy_adev_open(const hw_module_t* module, const char* name, 643 hw_device_t** device) 644{ 645 struct legacy_audio_device *ladev; 646 int ret; 647 648 if (strcmp(name, AUDIO_HARDWARE_INTERFACE) != 0) 649 return -EINVAL; 650 651 ladev = (struct legacy_audio_device *)calloc(1, sizeof(*ladev)); 652 if (!ladev) 653 return -ENOMEM; 654 655 ladev->device.common.tag = HARDWARE_DEVICE_TAG; 656 ladev->device.common.version = AUDIO_DEVICE_API_VERSION_2_0; 657 ladev->device.common.module = const_cast<hw_module_t*>(module); 658 ladev->device.common.close = legacy_adev_close; 659 660 ladev->device.init_check = adev_init_check; 661 ladev->device.set_voice_volume = adev_set_voice_volume; 662 ladev->device.set_master_volume = adev_set_master_volume; 663 ladev->device.get_master_volume = adev_get_master_volume; 664 ladev->device.set_mode = adev_set_mode; 665 ladev->device.set_mic_mute = adev_set_mic_mute; 666 ladev->device.get_mic_mute = adev_get_mic_mute; 667 ladev->device.set_parameters = adev_set_parameters; 668 ladev->device.get_parameters = adev_get_parameters; 669 ladev->device.get_input_buffer_size = adev_get_input_buffer_size; 670 ladev->device.open_output_stream = adev_open_output_stream; 671 ladev->device.close_output_stream = adev_close_output_stream; 672 ladev->device.open_input_stream = adev_open_input_stream; 673 ladev->device.close_input_stream = adev_close_input_stream; 674 ladev->device.dump = adev_dump; 675 676 ladev->hwif = createAudioHardware(); 677 if (!ladev->hwif) { 678 ret = -EIO; 679 goto err_create_audio_hw; 680 } 681 682 *device = &ladev->device.common; 683 684 return 0; 685 686err_create_audio_hw: 687 free(ladev); 688 return ret; 689} 690 691static struct hw_module_methods_t legacy_audio_module_methods = { 692 open: legacy_adev_open 693}; 694 695struct legacy_audio_module HAL_MODULE_INFO_SYM = { 696 module: { 697 common: { 698 tag: HARDWARE_MODULE_TAG, 699 module_api_version: AUDIO_MODULE_API_VERSION_0_1, 700 hal_api_version: HARDWARE_HAL_API_VERSION, 701 id: AUDIO_HARDWARE_MODULE_ID, 702 name: "LEGACY Audio HW HAL", 703 author: "The Android Open Source Project", 704 methods: &legacy_audio_module_methods, 705 dso : NULL, 706 reserved : {0}, 707 }, 708 }, 709}; 710 711}; // extern "C" 712 713}; // namespace android_audio_legacy 714