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_policy_hal"
18 //#define LOG_NDEBUG 0
22 #include <hardware/hardware.h>
23 #include <system/audio.h>
24 #include <system/audio_policy.h>
25 #include <hardware/audio_policy.h>
27 #include <hardware_legacy/AudioPolicyInterface.h>
28 #include <hardware_legacy/AudioSystemLegacy.h>
30 #include "AudioPolicyCompatClient.h"
32 namespace android_audio_legacy {
36 struct legacy_ap_module {
37 struct audio_policy_module module;
40 struct legacy_ap_device {
41 struct audio_policy_device device;
44 struct legacy_audio_policy {
45 struct audio_policy policy;
48 struct audio_policy_service_ops *aps_ops;
49 AudioPolicyCompatClient *service_client;
50 AudioPolicyInterface *apm;
53 static inline struct legacy_audio_policy * to_lap(struct audio_policy *pol)
55 return reinterpret_cast<struct legacy_audio_policy *>(pol);
58 static inline const struct legacy_audio_policy * to_clap(const struct audio_policy *pol)
60 return reinterpret_cast<const struct legacy_audio_policy *>(pol);
64 static int ap_set_device_connection_state(struct audio_policy *pol,
65 audio_devices_t device,
66 audio_policy_dev_state_t state,
67 const char *device_address)
69 struct legacy_audio_policy *lap = to_lap(pol);
70 return lap->apm->setDeviceConnectionState(
71 (AudioSystem::audio_devices)device,
72 (AudioSystem::device_connection_state)state,
76 static audio_policy_dev_state_t ap_get_device_connection_state(
77 const struct audio_policy *pol,
78 audio_devices_t device,
79 const char *device_address)
81 const struct legacy_audio_policy *lap = to_clap(pol);
82 return (audio_policy_dev_state_t)lap->apm->getDeviceConnectionState(
83 (AudioSystem::audio_devices)device,
87 static void ap_set_phone_state(struct audio_policy *pol, audio_mode_t state)
89 struct legacy_audio_policy *lap = to_lap(pol);
90 // as this is the legacy API, don't change it to use audio_mode_t instead of int
91 lap->apm->setPhoneState((int) state);
94 /* indicate a change in ringer mode */
95 static void ap_set_ringer_mode(struct audio_policy *pol, uint32_t mode,
98 // deprecated, never called
101 /* force using a specific device category for the specified usage */
102 static void ap_set_force_use(struct audio_policy *pol,
103 audio_policy_force_use_t usage,
104 audio_policy_forced_cfg_t config)
106 struct legacy_audio_policy *lap = to_lap(pol);
107 lap->apm->setForceUse((AudioSystem::force_use)usage,
108 (AudioSystem::forced_config)config);
111 /* retreive current device category forced for a given usage */
112 static audio_policy_forced_cfg_t ap_get_force_use(
113 const struct audio_policy *pol,
114 audio_policy_force_use_t usage)
116 const struct legacy_audio_policy *lap = to_clap(pol);
117 return (audio_policy_forced_cfg_t)lap->apm->getForceUse(
118 (AudioSystem::force_use)usage);
121 /* if can_mute is true, then audio streams that are marked ENFORCED_AUDIBLE
122 * can still be muted. */
123 static void ap_set_can_mute_enforced_audible(struct audio_policy *pol,
126 struct legacy_audio_policy *lap = to_lap(pol);
127 lap->apm->setSystemProperty("ro.camera.sound.forced", can_mute ? "0" : "1");
130 static int ap_init_check(const struct audio_policy *pol)
132 const struct legacy_audio_policy *lap = to_clap(pol);
133 return lap->apm->initCheck();
136 static audio_io_handle_t ap_get_output(struct audio_policy *pol,
137 audio_stream_type_t stream,
138 uint32_t sampling_rate,
139 audio_format_t format,
140 audio_channel_mask_t channelMask,
141 audio_output_flags_t flags,
142 const audio_offload_info_t *offloadInfo)
144 struct legacy_audio_policy *lap = to_lap(pol);
146 ALOGV("%s: tid %d", __func__, gettid());
147 return lap->apm->getOutput((AudioSystem::stream_type)stream,
148 sampling_rate, format, channelMask,
149 (AudioSystem::output_flags)flags,
153 static int ap_start_output(struct audio_policy *pol, audio_io_handle_t output,
154 audio_stream_type_t stream, int session)
156 struct legacy_audio_policy *lap = to_lap(pol);
157 return lap->apm->startOutput(output, (AudioSystem::stream_type)stream,
161 static int ap_stop_output(struct audio_policy *pol, audio_io_handle_t output,
162 audio_stream_type_t stream, int session)
164 struct legacy_audio_policy *lap = to_lap(pol);
165 return lap->apm->stopOutput(output, (AudioSystem::stream_type)stream,
169 static void ap_release_output(struct audio_policy *pol,
170 audio_io_handle_t output)
172 struct legacy_audio_policy *lap = to_lap(pol);
173 lap->apm->releaseOutput(output);
176 static audio_io_handle_t ap_get_input(struct audio_policy *pol, audio_source_t inputSource,
177 uint32_t sampling_rate,
178 audio_format_t format,
179 audio_channel_mask_t channelMask,
180 audio_in_acoustics_t acoustics)
182 struct legacy_audio_policy *lap = to_lap(pol);
183 return lap->apm->getInput((int) inputSource, sampling_rate, format, channelMask,
184 (AudioSystem::audio_in_acoustics)acoustics);
187 static int ap_start_input(struct audio_policy *pol, audio_io_handle_t input)
189 struct legacy_audio_policy *lap = to_lap(pol);
190 return lap->apm->startInput(input);
193 static int ap_stop_input(struct audio_policy *pol, audio_io_handle_t input)
195 struct legacy_audio_policy *lap = to_lap(pol);
196 return lap->apm->stopInput(input);
199 static void ap_release_input(struct audio_policy *pol, audio_io_handle_t input)
201 struct legacy_audio_policy *lap = to_lap(pol);
202 lap->apm->releaseInput(input);
205 static void ap_init_stream_volume(struct audio_policy *pol,
206 audio_stream_type_t stream, int index_min,
209 struct legacy_audio_policy *lap = to_lap(pol);
210 lap->apm->initStreamVolume((AudioSystem::stream_type)stream, index_min,
214 static int ap_set_stream_volume_index(struct audio_policy *pol,
215 audio_stream_type_t stream,
218 struct legacy_audio_policy *lap = to_lap(pol);
219 return lap->apm->setStreamVolumeIndex((AudioSystem::stream_type)stream,
221 AUDIO_DEVICE_OUT_DEFAULT);
224 static int ap_get_stream_volume_index(const struct audio_policy *pol,
225 audio_stream_type_t stream,
228 const struct legacy_audio_policy *lap = to_clap(pol);
229 return lap->apm->getStreamVolumeIndex((AudioSystem::stream_type)stream,
231 AUDIO_DEVICE_OUT_DEFAULT);
234 static int ap_set_stream_volume_index_for_device(struct audio_policy *pol,
235 audio_stream_type_t stream,
237 audio_devices_t device)
239 struct legacy_audio_policy *lap = to_lap(pol);
240 return lap->apm->setStreamVolumeIndex((AudioSystem::stream_type)stream,
245 static int ap_get_stream_volume_index_for_device(const struct audio_policy *pol,
246 audio_stream_type_t stream,
248 audio_devices_t device)
250 const struct legacy_audio_policy *lap = to_clap(pol);
251 return lap->apm->getStreamVolumeIndex((AudioSystem::stream_type)stream,
256 static uint32_t ap_get_strategy_for_stream(const struct audio_policy *pol,
257 audio_stream_type_t stream)
259 const struct legacy_audio_policy *lap = to_clap(pol);
260 return lap->apm->getStrategyForStream((AudioSystem::stream_type)stream);
263 static audio_devices_t ap_get_devices_for_stream(const struct audio_policy *pol,
264 audio_stream_type_t stream)
266 const struct legacy_audio_policy *lap = to_clap(pol);
267 return lap->apm->getDevicesForStream((AudioSystem::stream_type)stream);
270 static audio_io_handle_t ap_get_output_for_effect(struct audio_policy *pol,
271 const struct effect_descriptor_s *desc)
273 struct legacy_audio_policy *lap = to_lap(pol);
274 return lap->apm->getOutputForEffect(desc);
277 static int ap_register_effect(struct audio_policy *pol,
278 const struct effect_descriptor_s *desc,
279 audio_io_handle_t io,
284 struct legacy_audio_policy *lap = to_lap(pol);
285 return lap->apm->registerEffect(desc, io, strategy, session, id);
288 static int ap_unregister_effect(struct audio_policy *pol, int id)
290 struct legacy_audio_policy *lap = to_lap(pol);
291 return lap->apm->unregisterEffect(id);
294 static int ap_set_effect_enabled(struct audio_policy *pol, int id, bool enabled)
296 struct legacy_audio_policy *lap = to_lap(pol);
297 return lap->apm->setEffectEnabled(id, enabled);
300 static bool ap_is_stream_active(const struct audio_policy *pol, audio_stream_type_t stream,
303 const struct legacy_audio_policy *lap = to_clap(pol);
304 return lap->apm->isStreamActive((int) stream, in_past_ms);
307 static bool ap_is_stream_active_remotely(const struct audio_policy *pol, audio_stream_type_t stream,
310 const struct legacy_audio_policy *lap = to_clap(pol);
311 return lap->apm->isStreamActiveRemotely((int) stream, in_past_ms);
314 static bool ap_is_source_active(const struct audio_policy *pol, audio_source_t source)
316 const struct legacy_audio_policy *lap = to_clap(pol);
317 return lap->apm->isSourceActive(source);
320 static int ap_dump(const struct audio_policy *pol, int fd)
322 const struct legacy_audio_policy *lap = to_clap(pol);
323 return lap->apm->dump(fd);
326 static bool ap_is_offload_supported(const struct audio_policy *pol,
327 const audio_offload_info_t *info)
329 const struct legacy_audio_policy *lap = to_clap(pol);
330 return lap->apm->isOffloadSupported(*info);
333 static int create_legacy_ap(const struct audio_policy_device *device,
334 struct audio_policy_service_ops *aps_ops,
336 struct audio_policy **ap)
338 struct legacy_audio_policy *lap;
341 if (!service || !aps_ops)
344 lap = (struct legacy_audio_policy *)calloc(1, sizeof(*lap));
348 lap->policy.set_device_connection_state = ap_set_device_connection_state;
349 lap->policy.get_device_connection_state = ap_get_device_connection_state;
350 lap->policy.set_phone_state = ap_set_phone_state;
351 lap->policy.set_ringer_mode = ap_set_ringer_mode;
352 lap->policy.set_force_use = ap_set_force_use;
353 lap->policy.get_force_use = ap_get_force_use;
354 lap->policy.set_can_mute_enforced_audible =
355 ap_set_can_mute_enforced_audible;
356 lap->policy.init_check = ap_init_check;
357 lap->policy.get_output = ap_get_output;
358 lap->policy.start_output = ap_start_output;
359 lap->policy.stop_output = ap_stop_output;
360 lap->policy.release_output = ap_release_output;
361 lap->policy.get_input = ap_get_input;
362 lap->policy.start_input = ap_start_input;
363 lap->policy.stop_input = ap_stop_input;
364 lap->policy.release_input = ap_release_input;
365 lap->policy.init_stream_volume = ap_init_stream_volume;
366 lap->policy.set_stream_volume_index = ap_set_stream_volume_index;
367 lap->policy.get_stream_volume_index = ap_get_stream_volume_index;
368 lap->policy.set_stream_volume_index_for_device = ap_set_stream_volume_index_for_device;
369 lap->policy.get_stream_volume_index_for_device = ap_get_stream_volume_index_for_device;
370 lap->policy.get_strategy_for_stream = ap_get_strategy_for_stream;
371 lap->policy.get_devices_for_stream = ap_get_devices_for_stream;
372 lap->policy.get_output_for_effect = ap_get_output_for_effect;
373 lap->policy.register_effect = ap_register_effect;
374 lap->policy.unregister_effect = ap_unregister_effect;
375 lap->policy.set_effect_enabled = ap_set_effect_enabled;
376 lap->policy.is_stream_active = ap_is_stream_active;
377 lap->policy.is_stream_active_remotely = ap_is_stream_active_remotely;
378 lap->policy.is_source_active = ap_is_source_active;
379 lap->policy.dump = ap_dump;
380 lap->policy.is_offload_supported = ap_is_offload_supported;
382 lap->service = service;
383 lap->aps_ops = aps_ops;
384 lap->service_client =
385 new AudioPolicyCompatClient(aps_ops, service);
386 if (!lap->service_client) {
388 goto err_new_compat_client;
391 lap->apm = createAudioPolicyManager(lap->service_client);
401 delete lap->service_client;
402 err_new_compat_client:
408 static int destroy_legacy_ap(const struct audio_policy_device *ap_dev,
409 struct audio_policy *ap)
411 struct legacy_audio_policy *lap = to_lap(ap);
417 destroyAudioPolicyManager(lap->apm);
418 if (lap->service_client)
419 delete lap->service_client;
424 static int legacy_ap_dev_close(hw_device_t* device)
431 static int legacy_ap_dev_open(const hw_module_t* module, const char* name,
432 hw_device_t** device)
434 struct legacy_ap_device *dev;
436 if (strcmp(name, AUDIO_POLICY_INTERFACE) != 0)
439 dev = (struct legacy_ap_device *)calloc(1, sizeof(*dev));
443 dev->device.common.tag = HARDWARE_DEVICE_TAG;
444 dev->device.common.version = 0;
445 dev->device.common.module = const_cast<hw_module_t*>(module);
446 dev->device.common.close = legacy_ap_dev_close;
447 dev->device.create_audio_policy = create_legacy_ap;
448 dev->device.destroy_audio_policy = destroy_legacy_ap;
450 *device = &dev->device.common;
455 static struct hw_module_methods_t legacy_ap_module_methods = {
456 .open = legacy_ap_dev_open
459 struct legacy_ap_module HAL_MODULE_INFO_SYM = {
462 .tag = HARDWARE_MODULE_TAG,
465 .id = AUDIO_POLICY_HARDWARE_MODULE_ID,
466 .name = "LEGACY Audio Policy HAL",
467 .author = "The Android Open Source Project",
468 .methods = &legacy_ap_module_methods,
477 }; // namespace android_audio_legacy