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)
143 struct legacy_audio_policy *lap = to_lap(pol);
145 ALOGV("%s: tid %d", __func__, gettid());
146 return lap->apm->getOutput((AudioSystem::stream_type)stream,
147 sampling_rate, (int) format, channelMask,
148 (AudioSystem::output_flags)flags);
151 static int ap_start_output(struct audio_policy *pol, audio_io_handle_t output,
152 audio_stream_type_t stream, int session)
154 struct legacy_audio_policy *lap = to_lap(pol);
155 return lap->apm->startOutput(output, (AudioSystem::stream_type)stream,
159 static int ap_stop_output(struct audio_policy *pol, audio_io_handle_t output,
160 audio_stream_type_t stream, int session)
162 struct legacy_audio_policy *lap = to_lap(pol);
163 return lap->apm->stopOutput(output, (AudioSystem::stream_type)stream,
167 static void ap_release_output(struct audio_policy *pol,
168 audio_io_handle_t output)
170 struct legacy_audio_policy *lap = to_lap(pol);
171 lap->apm->releaseOutput(output);
174 static audio_io_handle_t ap_get_input(struct audio_policy *pol, audio_source_t inputSource,
175 uint32_t sampling_rate,
176 audio_format_t format,
177 audio_channel_mask_t channelMask,
178 audio_in_acoustics_t acoustics)
180 struct legacy_audio_policy *lap = to_lap(pol);
181 return lap->apm->getInput((int) inputSource, sampling_rate, (int) format, channelMask,
182 (AudioSystem::audio_in_acoustics)acoustics);
185 static int ap_start_input(struct audio_policy *pol, audio_io_handle_t input)
187 struct legacy_audio_policy *lap = to_lap(pol);
188 return lap->apm->startInput(input);
191 static int ap_stop_input(struct audio_policy *pol, audio_io_handle_t input)
193 struct legacy_audio_policy *lap = to_lap(pol);
194 return lap->apm->stopInput(input);
197 static void ap_release_input(struct audio_policy *pol, audio_io_handle_t input)
199 struct legacy_audio_policy *lap = to_lap(pol);
200 lap->apm->releaseInput(input);
203 static void ap_init_stream_volume(struct audio_policy *pol,
204 audio_stream_type_t stream, int index_min,
207 struct legacy_audio_policy *lap = to_lap(pol);
208 lap->apm->initStreamVolume((AudioSystem::stream_type)stream, index_min,
212 static int ap_set_stream_volume_index(struct audio_policy *pol,
213 audio_stream_type_t stream,
216 struct legacy_audio_policy *lap = to_lap(pol);
217 return lap->apm->setStreamVolumeIndex((AudioSystem::stream_type)stream,
219 AUDIO_DEVICE_OUT_DEFAULT);
222 static int ap_get_stream_volume_index(const struct audio_policy *pol,
223 audio_stream_type_t stream,
226 const struct legacy_audio_policy *lap = to_clap(pol);
227 return lap->apm->getStreamVolumeIndex((AudioSystem::stream_type)stream,
229 AUDIO_DEVICE_OUT_DEFAULT);
232 static int ap_set_stream_volume_index_for_device(struct audio_policy *pol,
233 audio_stream_type_t stream,
235 audio_devices_t device)
237 struct legacy_audio_policy *lap = to_lap(pol);
238 return lap->apm->setStreamVolumeIndex((AudioSystem::stream_type)stream,
243 static int ap_get_stream_volume_index_for_device(const struct audio_policy *pol,
244 audio_stream_type_t stream,
246 audio_devices_t device)
248 const struct legacy_audio_policy *lap = to_clap(pol);
249 return lap->apm->getStreamVolumeIndex((AudioSystem::stream_type)stream,
254 static uint32_t ap_get_strategy_for_stream(const struct audio_policy *pol,
255 audio_stream_type_t stream)
257 const struct legacy_audio_policy *lap = to_clap(pol);
258 return lap->apm->getStrategyForStream((AudioSystem::stream_type)stream);
261 static audio_devices_t ap_get_devices_for_stream(const struct audio_policy *pol,
262 audio_stream_type_t stream)
264 const struct legacy_audio_policy *lap = to_clap(pol);
265 return lap->apm->getDevicesForStream((AudioSystem::stream_type)stream);
268 static audio_io_handle_t ap_get_output_for_effect(struct audio_policy *pol,
269 const struct effect_descriptor_s *desc)
271 struct legacy_audio_policy *lap = to_lap(pol);
272 return lap->apm->getOutputForEffect(desc);
275 static int ap_register_effect(struct audio_policy *pol,
276 const struct effect_descriptor_s *desc,
277 audio_io_handle_t io,
282 struct legacy_audio_policy *lap = to_lap(pol);
283 return lap->apm->registerEffect(desc, io, strategy, session, id);
286 static int ap_unregister_effect(struct audio_policy *pol, int id)
288 struct legacy_audio_policy *lap = to_lap(pol);
289 return lap->apm->unregisterEffect(id);
292 static int ap_set_effect_enabled(struct audio_policy *pol, int id, bool enabled)
294 struct legacy_audio_policy *lap = to_lap(pol);
295 return lap->apm->setEffectEnabled(id, enabled);
298 static bool ap_is_stream_active(const struct audio_policy *pol, audio_stream_type_t stream,
301 const struct legacy_audio_policy *lap = to_clap(pol);
302 return lap->apm->isStreamActive((int) stream, in_past_ms);
305 static int ap_dump(const struct audio_policy *pol, int fd)
307 const struct legacy_audio_policy *lap = to_clap(pol);
308 return lap->apm->dump(fd);
311 static int create_legacy_ap(const struct audio_policy_device *device,
312 struct audio_policy_service_ops *aps_ops,
314 struct audio_policy **ap)
316 struct legacy_audio_policy *lap;
319 if (!service || !aps_ops)
322 lap = (struct legacy_audio_policy *)calloc(1, sizeof(*lap));
326 lap->policy.set_device_connection_state = ap_set_device_connection_state;
327 lap->policy.get_device_connection_state = ap_get_device_connection_state;
328 lap->policy.set_phone_state = ap_set_phone_state;
329 lap->policy.set_ringer_mode = ap_set_ringer_mode;
330 lap->policy.set_force_use = ap_set_force_use;
331 lap->policy.get_force_use = ap_get_force_use;
332 lap->policy.set_can_mute_enforced_audible =
333 ap_set_can_mute_enforced_audible;
334 lap->policy.init_check = ap_init_check;
335 lap->policy.get_output = ap_get_output;
336 lap->policy.start_output = ap_start_output;
337 lap->policy.stop_output = ap_stop_output;
338 lap->policy.release_output = ap_release_output;
339 lap->policy.get_input = ap_get_input;
340 lap->policy.start_input = ap_start_input;
341 lap->policy.stop_input = ap_stop_input;
342 lap->policy.release_input = ap_release_input;
343 lap->policy.init_stream_volume = ap_init_stream_volume;
344 lap->policy.set_stream_volume_index = ap_set_stream_volume_index;
345 lap->policy.get_stream_volume_index = ap_get_stream_volume_index;
346 lap->policy.set_stream_volume_index_for_device = ap_set_stream_volume_index_for_device;
347 lap->policy.get_stream_volume_index_for_device = ap_get_stream_volume_index_for_device;
348 lap->policy.get_strategy_for_stream = ap_get_strategy_for_stream;
349 lap->policy.get_devices_for_stream = ap_get_devices_for_stream;
350 lap->policy.get_output_for_effect = ap_get_output_for_effect;
351 lap->policy.register_effect = ap_register_effect;
352 lap->policy.unregister_effect = ap_unregister_effect;
353 lap->policy.set_effect_enabled = ap_set_effect_enabled;
354 lap->policy.is_stream_active = ap_is_stream_active;
355 lap->policy.dump = ap_dump;
357 lap->service = service;
358 lap->aps_ops = aps_ops;
359 lap->service_client =
360 new AudioPolicyCompatClient(aps_ops, service);
361 if (!lap->service_client) {
363 goto err_new_compat_client;
366 lap->apm = createAudioPolicyManager(lap->service_client);
376 delete lap->service_client;
377 err_new_compat_client:
383 static int destroy_legacy_ap(const struct audio_policy_device *ap_dev,
384 struct audio_policy *ap)
386 struct legacy_audio_policy *lap = to_lap(ap);
392 destroyAudioPolicyManager(lap->apm);
393 if (lap->service_client)
394 delete lap->service_client;
399 static int legacy_ap_dev_close(hw_device_t* device)
406 static int legacy_ap_dev_open(const hw_module_t* module, const char* name,
407 hw_device_t** device)
409 struct legacy_ap_device *dev;
411 if (strcmp(name, AUDIO_POLICY_INTERFACE) != 0)
414 dev = (struct legacy_ap_device *)calloc(1, sizeof(*dev));
418 dev->device.common.tag = HARDWARE_DEVICE_TAG;
419 dev->device.common.version = 0;
420 dev->device.common.module = const_cast<hw_module_t*>(module);
421 dev->device.common.close = legacy_ap_dev_close;
422 dev->device.create_audio_policy = create_legacy_ap;
423 dev->device.destroy_audio_policy = destroy_legacy_ap;
425 *device = &dev->device.common;
430 static struct hw_module_methods_t legacy_ap_module_methods = {
431 open: legacy_ap_dev_open
434 struct legacy_ap_module HAL_MODULE_INFO_SYM = {
437 tag: HARDWARE_MODULE_TAG,
440 id: AUDIO_POLICY_HARDWARE_MODULE_ID,
441 name: "LEGACY Audio Policy HAL",
442 author: "The Android Open Source Project",
443 methods: &legacy_ap_module_methods,
452 }; // namespace android_audio_legacy