2 * Copyright (C) 2011 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 #define LOG_TAG "legacy_audio_hw_hal"
18 //#define LOG_NDEBUG 0
22 #include <hardware/hardware.h>
23 #include <system/audio.h>
24 #include <hardware/audio.h>
26 #include <hardware_legacy/AudioHardwareInterface.h>
27 #include <hardware_legacy/AudioSystemLegacy.h>
29 namespace android_audio_legacy {
31 class AudioHardwareInterface;
35 struct legacy_audio_module {
36 struct audio_module module;
39 struct legacy_audio_device {
40 struct audio_hw_device device;
42 AudioHardwareInterface *hwif;
45 struct legacy_stream_out {
46 struct audio_stream_out stream;
48 AudioStreamOut *legacy_out;
51 struct legacy_stream_in {
52 struct audio_stream_in stream;
54 AudioStreamIn *legacy_in;
64 static uint32_t audio_device_conv_table[][HAL_API_REV_NUM] =
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 },
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 },
93 static uint32_t convert_audio_device(uint32_t from_device, int from_rev, int to_rev)
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;
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;
104 while (from_device) {
105 uint32_t i = 31 - __builtin_clz(from_device);
106 uint32_t cur_device = (1 << i) | in_bit;
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];
114 from_device &= ~cur_device;
120 /** audio_stream_out implementation **/
121 static uint32_t out_get_sample_rate(const struct audio_stream *stream)
123 const struct legacy_stream_out *out =
124 reinterpret_cast<const struct legacy_stream_out *>(stream);
125 return out->legacy_out->sampleRate();
128 static int out_set_sample_rate(struct audio_stream *stream, uint32_t rate)
130 struct legacy_stream_out *out =
131 reinterpret_cast<struct legacy_stream_out *>(stream);
133 ALOGE("(%s:%d) %s: Implement me!", __FILE__, __LINE__, __func__);
134 /* TODO: implement this */
138 static size_t out_get_buffer_size(const struct audio_stream *stream)
140 const struct legacy_stream_out *out =
141 reinterpret_cast<const struct legacy_stream_out *>(stream);
142 return out->legacy_out->bufferSize();
145 static audio_channel_mask_t out_get_channels(const struct audio_stream *stream)
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();
152 static audio_format_t out_get_format(const struct audio_stream *stream)
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();
160 static int out_set_format(struct audio_stream *stream, audio_format_t format)
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 */
169 static int out_standby(struct audio_stream *stream)
171 struct legacy_stream_out *out =
172 reinterpret_cast<struct legacy_stream_out *>(stream);
173 return out->legacy_out->standby();
176 static int out_dump(const struct audio_stream *stream, int fd)
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);
184 static int out_set_parameters(struct audio_stream *stream, const char *kvpairs)
186 struct legacy_stream_out *out =
187 reinterpret_cast<struct legacy_stream_out *>(stream);
189 String8 s8 = String8(kvpairs);
190 AudioParameter parms = AudioParameter(String8(kvpairs));
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();
199 return out->legacy_out->setParameters(s8);
202 static char * out_get_parameters(const struct audio_stream *stream, const char *keys)
204 const struct legacy_stream_out *out =
205 reinterpret_cast<const struct legacy_stream_out *>(stream);
209 s8 = out->legacy_out->getParameters(String8(keys));
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();
219 return strdup(s8.string());
222 static uint32_t out_get_latency(const struct audio_stream_out *stream)
224 const struct legacy_stream_out *out =
225 reinterpret_cast<const struct legacy_stream_out *>(stream);
226 return out->legacy_out->latency();
229 static int out_set_volume(struct audio_stream_out *stream, float left,
232 struct legacy_stream_out *out =
233 reinterpret_cast<struct legacy_stream_out *>(stream);
234 return out->legacy_out->setVolume(left, right);
237 static ssize_t out_write(struct audio_stream_out *stream, const void* buffer,
240 struct legacy_stream_out *out =
241 reinterpret_cast<struct legacy_stream_out *>(stream);
242 return out->legacy_out->write(buffer, bytes);
245 static int out_get_render_position(const struct audio_stream_out *stream,
246 uint32_t *dsp_frames)
248 const struct legacy_stream_out *out =
249 reinterpret_cast<const struct legacy_stream_out *>(stream);
250 return out->legacy_out->getRenderPosition(dsp_frames);
253 static int out_get_next_write_timestamp(const struct audio_stream_out *stream,
256 const struct legacy_stream_out *out =
257 reinterpret_cast<const struct legacy_stream_out *>(stream);
258 return out->legacy_out->getNextWriteTimestamp(timestamp);
261 static int out_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
266 static int out_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
271 /** audio_stream_in implementation **/
272 static uint32_t in_get_sample_rate(const struct audio_stream *stream)
274 const struct legacy_stream_in *in =
275 reinterpret_cast<const struct legacy_stream_in *>(stream);
276 return in->legacy_in->sampleRate();
279 static int in_set_sample_rate(struct audio_stream *stream, uint32_t rate)
281 struct legacy_stream_in *in =
282 reinterpret_cast<struct legacy_stream_in *>(stream);
284 ALOGE("(%s:%d) %s: Implement me!", __FILE__, __LINE__, __func__);
285 /* TODO: implement this */
289 static size_t in_get_buffer_size(const struct audio_stream *stream)
291 const struct legacy_stream_in *in =
292 reinterpret_cast<const struct legacy_stream_in *>(stream);
293 return in->legacy_in->bufferSize();
296 static audio_channel_mask_t in_get_channels(const struct audio_stream *stream)
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();
303 static audio_format_t in_get_format(const struct audio_stream *stream)
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();
311 static int in_set_format(struct audio_stream *stream, audio_format_t format)
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 */
320 static int in_standby(struct audio_stream *stream)
322 struct legacy_stream_in *in = reinterpret_cast<struct legacy_stream_in *>(stream);
323 return in->legacy_in->standby();
326 static int in_dump(const struct audio_stream *stream, int fd)
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);
334 static int in_set_parameters(struct audio_stream *stream, const char *kvpairs)
336 struct legacy_stream_in *in =
337 reinterpret_cast<struct legacy_stream_in *>(stream);
339 AudioParameter parms = AudioParameter(String8(kvpairs));
340 String8 s8 = String8(kvpairs);
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();
349 return in->legacy_in->setParameters(s8);
352 static char * in_get_parameters(const struct audio_stream *stream,
355 const struct legacy_stream_in *in =
356 reinterpret_cast<const struct legacy_stream_in *>(stream);
360 s8 = in->legacy_in->getParameters(String8(keys));
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();
370 return strdup(s8.string());
373 static int in_set_gain(struct audio_stream_in *stream, float gain)
375 struct legacy_stream_in *in =
376 reinterpret_cast<struct legacy_stream_in *>(stream);
377 return in->legacy_in->setGain(gain);
380 static ssize_t in_read(struct audio_stream_in *stream, void* buffer,
383 struct legacy_stream_in *in =
384 reinterpret_cast<struct legacy_stream_in *>(stream);
385 return in->legacy_in->read(buffer, bytes);
388 static uint32_t in_get_input_frames_lost(struct audio_stream_in *stream)
390 struct legacy_stream_in *in =
391 reinterpret_cast<struct legacy_stream_in *>(stream);
392 return in->legacy_in->getInputFramesLost();
395 static int in_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
397 const struct legacy_stream_in *in =
398 reinterpret_cast<const struct legacy_stream_in *>(stream);
399 return in->legacy_in->addAudioEffect(effect);
402 static int in_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
404 const struct legacy_stream_in *in =
405 reinterpret_cast<const struct legacy_stream_in *>(stream);
406 return in->legacy_in->removeAudioEffect(effect);
409 /** audio_hw_device implementation **/
410 static inline struct legacy_audio_device * to_ladev(struct audio_hw_device *dev)
412 return reinterpret_cast<struct legacy_audio_device *>(dev);
415 static inline const struct legacy_audio_device * to_cladev(const struct audio_hw_device *dev)
417 return reinterpret_cast<const struct legacy_audio_device *>(dev);
420 static int adev_init_check(const struct audio_hw_device *dev)
422 const struct legacy_audio_device *ladev = to_cladev(dev);
424 return ladev->hwif->initCheck();
427 static int adev_set_voice_volume(struct audio_hw_device *dev, float volume)
429 struct legacy_audio_device *ladev = to_ladev(dev);
430 return ladev->hwif->setVoiceVolume(volume);
433 static int adev_set_master_volume(struct audio_hw_device *dev, float volume)
435 struct legacy_audio_device *ladev = to_ladev(dev);
436 return ladev->hwif->setMasterVolume(volume);
439 static int adev_get_master_volume(struct audio_hw_device *dev, float* volume)
441 struct legacy_audio_device *ladev = to_ladev(dev);
442 return ladev->hwif->getMasterVolume(volume);
445 static int adev_set_mode(struct audio_hw_device *dev, audio_mode_t mode)
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);
452 static int adev_set_mic_mute(struct audio_hw_device *dev, bool state)
454 struct legacy_audio_device *ladev = to_ladev(dev);
455 return ladev->hwif->setMicMute(state);
458 static int adev_get_mic_mute(const struct audio_hw_device *dev, bool *state)
460 const struct legacy_audio_device *ladev = to_cladev(dev);
461 return ladev->hwif->getMicMute(state);
464 static int adev_set_parameters(struct audio_hw_device *dev, const char *kvpairs)
466 struct legacy_audio_device *ladev = to_ladev(dev);
467 return ladev->hwif->setParameters(String8(kvpairs));
470 static char * adev_get_parameters(const struct audio_hw_device *dev,
473 const struct legacy_audio_device *ladev = to_cladev(dev);
476 s8 = ladev->hwif->getParameters(String8(keys));
477 return strdup(s8.string());
480 static size_t adev_get_input_buffer_size(const struct audio_hw_device *dev,
481 const struct audio_config *config)
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));
488 static 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)
496 struct legacy_audio_device *ladev = to_ladev(dev);
498 struct legacy_stream_out *out;
501 out = (struct legacy_stream_out *)calloc(1, sizeof(*out));
505 devices = convert_audio_device(devices, HAL_API_REV_2_0, HAL_API_REV_1_0);
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) {
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;
534 *stream_out = &out->stream;
543 static void adev_close_output_stream(struct audio_hw_device *dev,
544 struct audio_stream_out* stream)
546 struct legacy_audio_device *ladev = to_ladev(dev);
547 struct legacy_stream_out *out = reinterpret_cast<struct legacy_stream_out *>(stream);
549 ladev->hwif->closeOutputStream(out->legacy_out);
553 /** This method creates and opens the audio hardware input stream */
554 static 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)
563 struct legacy_audio_device *ladev = to_ladev(dev);
565 struct legacy_stream_in *in;
568 in = (struct legacy_stream_in *)calloc(1, sizeof(*in));
572 devices = convert_audio_device(devices, HAL_API_REV_2_0, HAL_API_REV_1_0);
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) {
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;
598 *stream_in = &in->stream;
607 static void adev_close_input_stream(struct audio_hw_device *dev,
608 struct audio_stream_in *stream)
610 struct legacy_audio_device *ladev = to_ladev(dev);
611 struct legacy_stream_in *in =
612 reinterpret_cast<struct legacy_stream_in *>(stream);
614 ladev->hwif->closeInputStream(in->legacy_in);
618 static int adev_dump(const struct audio_hw_device *dev, int fd)
620 const struct legacy_audio_device *ladev = to_cladev(dev);
621 Vector<String16> args;
623 return ladev->hwif->dumpState(fd, args);
626 static int legacy_adev_close(hw_device_t* device)
628 struct audio_hw_device *hwdev =
629 reinterpret_cast<struct audio_hw_device *>(device);
630 struct legacy_audio_device *ladev = to_ladev(hwdev);
642 static int legacy_adev_open(const hw_module_t* module, const char* name,
643 hw_device_t** device)
645 struct legacy_audio_device *ladev;
648 if (strcmp(name, AUDIO_HARDWARE_INTERFACE) != 0)
651 ladev = (struct legacy_audio_device *)calloc(1, sizeof(*ladev));
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;
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;
676 ladev->hwif = createAudioHardware();
679 goto err_create_audio_hw;
682 *device = &ladev->device.common;
691 static struct hw_module_methods_t legacy_audio_module_methods = {
692 open: legacy_adev_open
695 struct legacy_audio_module HAL_MODULE_INFO_SYM = {
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,
713 }; // namespace android_audio_legacy