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 {
33 struct legacy_audio_module {
34 struct audio_module module;
37 struct legacy_audio_device {
38 struct audio_hw_device device;
40 struct AudioHardwareInterface *hwif;
43 struct legacy_stream_out {
44 struct audio_stream_out stream;
46 AudioStreamOut *legacy_out;
49 struct legacy_stream_in {
50 struct audio_stream_in stream;
52 AudioStreamIn *legacy_in;
55 /** audio_stream_out implementation **/
56 static uint32_t out_get_sample_rate(const struct audio_stream *stream)
58 const struct legacy_stream_out *out =
59 reinterpret_cast<const struct legacy_stream_out *>(stream);
60 return out->legacy_out->sampleRate();
63 static int out_set_sample_rate(struct audio_stream *stream, uint32_t rate)
65 struct legacy_stream_out *out =
66 reinterpret_cast<struct legacy_stream_out *>(stream);
68 ALOGE("(%s:%d) %s: Implement me!", __FILE__, __LINE__, __func__);
69 /* TODO: implement this */
73 static size_t out_get_buffer_size(const struct audio_stream *stream)
75 const struct legacy_stream_out *out =
76 reinterpret_cast<const struct legacy_stream_out *>(stream);
77 return out->legacy_out->bufferSize();
80 static uint32_t out_get_channels(const struct audio_stream *stream)
82 const struct legacy_stream_out *out =
83 reinterpret_cast<const struct legacy_stream_out *>(stream);
84 return out->legacy_out->channels();
87 static audio_format_t out_get_format(const struct audio_stream *stream)
89 const struct legacy_stream_out *out =
90 reinterpret_cast<const struct legacy_stream_out *>(stream);
91 // legacy API, don't change return type
92 return (audio_format_t) out->legacy_out->format();
95 static int out_set_format(struct audio_stream *stream, audio_format_t format)
97 struct legacy_stream_out *out =
98 reinterpret_cast<struct legacy_stream_out *>(stream);
99 ALOGE("(%s:%d) %s: Implement me!", __FILE__, __LINE__, __func__);
100 /* TODO: implement me */
104 static int out_standby(struct audio_stream *stream)
106 struct legacy_stream_out *out =
107 reinterpret_cast<struct legacy_stream_out *>(stream);
108 return out->legacy_out->standby();
111 static int out_dump(const struct audio_stream *stream, int fd)
113 const struct legacy_stream_out *out =
114 reinterpret_cast<const struct legacy_stream_out *>(stream);
115 Vector<String16> args;
116 return out->legacy_out->dump(fd, args);
119 static int out_set_parameters(struct audio_stream *stream, const char *kvpairs)
121 struct legacy_stream_out *out =
122 reinterpret_cast<struct legacy_stream_out *>(stream);
123 return out->legacy_out->setParameters(String8(kvpairs));
126 static char * out_get_parameters(const struct audio_stream *stream, const char *keys)
128 const struct legacy_stream_out *out =
129 reinterpret_cast<const struct legacy_stream_out *>(stream);
131 s8 = out->legacy_out->getParameters(String8(keys));
132 return strdup(s8.string());
135 static uint32_t out_get_latency(const struct audio_stream_out *stream)
137 const struct legacy_stream_out *out =
138 reinterpret_cast<const struct legacy_stream_out *>(stream);
139 return out->legacy_out->latency();
142 static int out_set_volume(struct audio_stream_out *stream, float left,
145 struct legacy_stream_out *out =
146 reinterpret_cast<struct legacy_stream_out *>(stream);
147 return out->legacy_out->setVolume(left, right);
150 static ssize_t out_write(struct audio_stream_out *stream, const void* buffer,
153 struct legacy_stream_out *out =
154 reinterpret_cast<struct legacy_stream_out *>(stream);
155 return out->legacy_out->write(buffer, bytes);
158 static int out_get_render_position(const struct audio_stream_out *stream,
159 uint32_t *dsp_frames)
161 const struct legacy_stream_out *out =
162 reinterpret_cast<const struct legacy_stream_out *>(stream);
163 return out->legacy_out->getRenderPosition(dsp_frames);
166 static int out_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
171 static int out_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
176 /** audio_stream_in implementation **/
177 static uint32_t in_get_sample_rate(const struct audio_stream *stream)
179 const struct legacy_stream_in *in =
180 reinterpret_cast<const struct legacy_stream_in *>(stream);
181 return in->legacy_in->sampleRate();
184 static int in_set_sample_rate(struct audio_stream *stream, uint32_t rate)
186 struct legacy_stream_in *in =
187 reinterpret_cast<struct legacy_stream_in *>(stream);
189 ALOGE("(%s:%d) %s: Implement me!", __FILE__, __LINE__, __func__);
190 /* TODO: implement this */
194 static size_t in_get_buffer_size(const struct audio_stream *stream)
196 const struct legacy_stream_in *in =
197 reinterpret_cast<const struct legacy_stream_in *>(stream);
198 return in->legacy_in->bufferSize();
201 static uint32_t in_get_channels(const struct audio_stream *stream)
203 const struct legacy_stream_in *in =
204 reinterpret_cast<const struct legacy_stream_in *>(stream);
205 return in->legacy_in->channels();
208 static audio_format_t in_get_format(const struct audio_stream *stream)
210 const struct legacy_stream_in *in =
211 reinterpret_cast<const struct legacy_stream_in *>(stream);
212 // legacy API, don't change return type
213 return (audio_format_t) in->legacy_in->format();
216 static int in_set_format(struct audio_stream *stream, audio_format_t format)
218 struct legacy_stream_in *in =
219 reinterpret_cast<struct legacy_stream_in *>(stream);
220 ALOGE("(%s:%d) %s: Implement me!", __FILE__, __LINE__, __func__);
221 /* TODO: implement me */
225 static int in_standby(struct audio_stream *stream)
227 struct legacy_stream_in *in = reinterpret_cast<struct legacy_stream_in *>(stream);
228 return in->legacy_in->standby();
231 static int in_dump(const struct audio_stream *stream, int fd)
233 const struct legacy_stream_in *in =
234 reinterpret_cast<const struct legacy_stream_in *>(stream);
235 Vector<String16> args;
236 return in->legacy_in->dump(fd, args);
239 static int in_set_parameters(struct audio_stream *stream, const char *kvpairs)
241 struct legacy_stream_in *in =
242 reinterpret_cast<struct legacy_stream_in *>(stream);
243 return in->legacy_in->setParameters(String8(kvpairs));
246 static char * in_get_parameters(const struct audio_stream *stream,
249 const struct legacy_stream_in *in =
250 reinterpret_cast<const struct legacy_stream_in *>(stream);
252 s8 = in->legacy_in->getParameters(String8(keys));
253 return strdup(s8.string());
256 static int in_set_gain(struct audio_stream_in *stream, float gain)
258 struct legacy_stream_in *in =
259 reinterpret_cast<struct legacy_stream_in *>(stream);
260 return in->legacy_in->setGain(gain);
263 static ssize_t in_read(struct audio_stream_in *stream, void* buffer,
266 struct legacy_stream_in *in =
267 reinterpret_cast<struct legacy_stream_in *>(stream);
268 return in->legacy_in->read(buffer, bytes);
271 static uint32_t in_get_input_frames_lost(struct audio_stream_in *stream)
273 struct legacy_stream_in *in =
274 reinterpret_cast<struct legacy_stream_in *>(stream);
275 return in->legacy_in->getInputFramesLost();
278 static int in_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
280 const struct legacy_stream_in *in =
281 reinterpret_cast<const struct legacy_stream_in *>(stream);
282 return in->legacy_in->addAudioEffect(effect);
285 static int in_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
287 const struct legacy_stream_in *in =
288 reinterpret_cast<const struct legacy_stream_in *>(stream);
289 return in->legacy_in->removeAudioEffect(effect);
292 /** audio_hw_device implementation **/
293 static inline struct legacy_audio_device * to_ladev(struct audio_hw_device *dev)
295 return reinterpret_cast<struct legacy_audio_device *>(dev);
298 static inline const struct legacy_audio_device * to_cladev(const struct audio_hw_device *dev)
300 return reinterpret_cast<const struct legacy_audio_device *>(dev);
303 static uint32_t adev_get_supported_devices(const struct audio_hw_device *dev)
305 /* XXX: The old AudioHardwareInterface interface is not smart enough to
306 * tell us this, so we'll lie and basically tell AF that we support the
307 * below input/output devices and cross our fingers. To do things properly,
308 * audio hardware interfaces that need advanced features (like this) should
309 * convert to the new HAL interface and not use this wrapper. */
312 AUDIO_DEVICE_OUT_EARPIECE |
313 AUDIO_DEVICE_OUT_SPEAKER |
314 AUDIO_DEVICE_OUT_WIRED_HEADSET |
315 AUDIO_DEVICE_OUT_WIRED_HEADPHONE |
316 AUDIO_DEVICE_OUT_AUX_DIGITAL |
317 AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET |
318 AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET |
319 AUDIO_DEVICE_OUT_ALL_SCO |
320 AUDIO_DEVICE_OUT_DEFAULT |
322 AUDIO_DEVICE_IN_COMMUNICATION |
323 AUDIO_DEVICE_IN_AMBIENT |
324 AUDIO_DEVICE_IN_BUILTIN_MIC |
325 AUDIO_DEVICE_IN_WIRED_HEADSET |
326 AUDIO_DEVICE_IN_AUX_DIGITAL |
327 AUDIO_DEVICE_IN_BACK_MIC |
328 AUDIO_DEVICE_IN_ALL_SCO |
329 AUDIO_DEVICE_IN_DEFAULT);
332 static int adev_init_check(const struct audio_hw_device *dev)
334 const struct legacy_audio_device *ladev = to_cladev(dev);
336 return ladev->hwif->initCheck();
339 static int adev_set_voice_volume(struct audio_hw_device *dev, float volume)
341 struct legacy_audio_device *ladev = to_ladev(dev);
342 return ladev->hwif->setVoiceVolume(volume);
345 static int adev_set_master_volume(struct audio_hw_device *dev, float volume)
347 struct legacy_audio_device *ladev = to_ladev(dev);
348 return ladev->hwif->setMasterVolume(volume);
351 static int adev_set_mode(struct audio_hw_device *dev, audio_mode_t mode)
353 struct legacy_audio_device *ladev = to_ladev(dev);
354 // as this is the legacy API, don't change it to use audio_mode_t instead of int
355 return ladev->hwif->setMode((int) mode);
358 static int adev_set_mic_mute(struct audio_hw_device *dev, bool state)
360 struct legacy_audio_device *ladev = to_ladev(dev);
361 return ladev->hwif->setMicMute(state);
364 static int adev_get_mic_mute(const struct audio_hw_device *dev, bool *state)
366 const struct legacy_audio_device *ladev = to_cladev(dev);
367 return ladev->hwif->getMicMute(state);
370 static int adev_set_parameters(struct audio_hw_device *dev, const char *kvpairs)
372 struct legacy_audio_device *ladev = to_ladev(dev);
373 return ladev->hwif->setParameters(String8(kvpairs));
376 static char * adev_get_parameters(const struct audio_hw_device *dev,
379 const struct legacy_audio_device *ladev = to_cladev(dev);
382 s8 = ladev->hwif->getParameters(String8(keys));
383 return strdup(s8.string());
386 static size_t adev_get_input_buffer_size(const struct audio_hw_device *dev,
387 uint32_t sample_rate, audio_format_t format,
390 const struct legacy_audio_device *ladev = to_cladev(dev);
391 return ladev->hwif->getInputBufferSize(sample_rate, (int) format, channel_count);
394 static int adev_open_output_stream(struct audio_hw_device *dev,
396 audio_format_t *format,
398 uint32_t *sample_rate,
399 struct audio_stream_out **stream_out)
401 struct legacy_audio_device *ladev = to_ladev(dev);
403 struct legacy_stream_out *out;
406 out = (struct legacy_stream_out *)calloc(1, sizeof(*out));
410 out->legacy_out = ladev->hwif->openOutputStream(devices, (int *) format, channels,
411 sample_rate, &status);
412 if (!out->legacy_out) {
417 out->stream.common.get_sample_rate = out_get_sample_rate;
418 out->stream.common.set_sample_rate = out_set_sample_rate;
419 out->stream.common.get_buffer_size = out_get_buffer_size;
420 out->stream.common.get_channels = out_get_channels;
421 out->stream.common.get_format = out_get_format;
422 out->stream.common.set_format = out_set_format;
423 out->stream.common.standby = out_standby;
424 out->stream.common.dump = out_dump;
425 out->stream.common.set_parameters = out_set_parameters;
426 out->stream.common.get_parameters = out_get_parameters;
427 out->stream.common.add_audio_effect = out_add_audio_effect;
428 out->stream.common.remove_audio_effect = out_remove_audio_effect;
429 out->stream.get_latency = out_get_latency;
430 out->stream.set_volume = out_set_volume;
431 out->stream.write = out_write;
432 out->stream.get_render_position = out_get_render_position;
434 *stream_out = &out->stream;
443 static void adev_close_output_stream(struct audio_hw_device *dev,
444 struct audio_stream_out* stream)
446 struct legacy_audio_device *ladev = to_ladev(dev);
447 struct legacy_stream_out *out = reinterpret_cast<struct legacy_stream_out *>(stream);
449 ladev->hwif->closeOutputStream(out->legacy_out);
453 /** This method creates and opens the audio hardware input stream */
454 static int adev_open_input_stream(struct audio_hw_device *dev,
455 uint32_t devices, audio_format_t *format,
456 uint32_t *channels, uint32_t *sample_rate,
457 audio_in_acoustics_t acoustics,
458 struct audio_stream_in **stream_in)
460 struct legacy_audio_device *ladev = to_ladev(dev);
462 struct legacy_stream_in *in;
465 in = (struct legacy_stream_in *)calloc(1, sizeof(*in));
469 in->legacy_in = ladev->hwif->openInputStream(devices, (int *) format, channels,
470 sample_rate, &status,
471 (AudioSystem::audio_in_acoustics)acoustics);
472 if (!in->legacy_in) {
477 in->stream.common.get_sample_rate = in_get_sample_rate;
478 in->stream.common.set_sample_rate = in_set_sample_rate;
479 in->stream.common.get_buffer_size = in_get_buffer_size;
480 in->stream.common.get_channels = in_get_channels;
481 in->stream.common.get_format = in_get_format;
482 in->stream.common.set_format = in_set_format;
483 in->stream.common.standby = in_standby;
484 in->stream.common.dump = in_dump;
485 in->stream.common.set_parameters = in_set_parameters;
486 in->stream.common.get_parameters = in_get_parameters;
487 in->stream.common.add_audio_effect = in_add_audio_effect;
488 in->stream.common.remove_audio_effect = in_remove_audio_effect;
489 in->stream.set_gain = in_set_gain;
490 in->stream.read = in_read;
491 in->stream.get_input_frames_lost = in_get_input_frames_lost;
493 *stream_in = &in->stream;
502 static void adev_close_input_stream(struct audio_hw_device *dev,
503 struct audio_stream_in *stream)
505 struct legacy_audio_device *ladev = to_ladev(dev);
506 struct legacy_stream_in *in =
507 reinterpret_cast<struct legacy_stream_in *>(stream);
509 ladev->hwif->closeInputStream(in->legacy_in);
513 static int adev_dump(const struct audio_hw_device *dev, int fd)
515 const struct legacy_audio_device *ladev = to_cladev(dev);
516 Vector<String16> args;
518 return ladev->hwif->dumpState(fd, args);
521 static int legacy_adev_close(hw_device_t* device)
523 struct audio_hw_device *hwdev =
524 reinterpret_cast<struct audio_hw_device *>(device);
525 struct legacy_audio_device *ladev = to_ladev(hwdev);
537 static int legacy_adev_open(const hw_module_t* module, const char* name,
538 hw_device_t** device)
540 struct legacy_audio_device *ladev;
543 if (strcmp(name, AUDIO_HARDWARE_INTERFACE) != 0)
546 ladev = (struct legacy_audio_device *)calloc(1, sizeof(*ladev));
550 ladev->device.common.tag = HARDWARE_DEVICE_TAG;
551 ladev->device.common.version = 0;
552 ladev->device.common.module = const_cast<hw_module_t*>(module);
553 ladev->device.common.close = legacy_adev_close;
555 ladev->device.get_supported_devices = adev_get_supported_devices;
556 ladev->device.init_check = adev_init_check;
557 ladev->device.set_voice_volume = adev_set_voice_volume;
558 ladev->device.set_master_volume = adev_set_master_volume;
559 ladev->device.set_mode = adev_set_mode;
560 ladev->device.set_mic_mute = adev_set_mic_mute;
561 ladev->device.get_mic_mute = adev_get_mic_mute;
562 ladev->device.set_parameters = adev_set_parameters;
563 ladev->device.get_parameters = adev_get_parameters;
564 ladev->device.get_input_buffer_size = adev_get_input_buffer_size;
565 ladev->device.open_output_stream = adev_open_output_stream;
566 ladev->device.close_output_stream = adev_close_output_stream;
567 ladev->device.open_input_stream = adev_open_input_stream;
568 ladev->device.close_input_stream = adev_close_input_stream;
569 ladev->device.dump = adev_dump;
571 ladev->hwif = createAudioHardware();
574 goto err_create_audio_hw;
577 *device = &ladev->device.common;
586 static struct hw_module_methods_t legacy_audio_module_methods = {
587 open: legacy_adev_open
590 struct legacy_audio_module HAL_MODULE_INFO_SYM = {
593 tag: HARDWARE_MODULE_TAG,
596 id: AUDIO_HARDWARE_MODULE_ID,
597 name: "LEGACY Audio HW HAL",
598 author: "The Android Open Source Project",
599 methods: &legacy_audio_module_methods,
608 }; // namespace android_audio_legacy