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 struct legacy_audio_policy *lap = to_lap(pol);
99 lap->apm->setRingerMode(mode, mask);
102 /* force using a specific device category for the specified usage */
103 static void ap_set_force_use(struct audio_policy *pol,
104 audio_policy_force_use_t usage,
105 audio_policy_forced_cfg_t config)
107 struct legacy_audio_policy *lap = to_lap(pol);
108 lap->apm->setForceUse((AudioSystem::force_use)usage,
109 (AudioSystem::forced_config)config);
112 /* retreive current device category forced for a given usage */
113 static audio_policy_forced_cfg_t ap_get_force_use(
114 const struct audio_policy *pol,
115 audio_policy_force_use_t usage)
117 const struct legacy_audio_policy *lap = to_clap(pol);
118 return (audio_policy_forced_cfg_t)lap->apm->getForceUse(
119 (AudioSystem::force_use)usage);
122 /* if can_mute is true, then audio streams that are marked ENFORCED_AUDIBLE
123 * can still be muted. */
124 static void ap_set_can_mute_enforced_audible(struct audio_policy *pol,
127 struct legacy_audio_policy *lap = to_lap(pol);
128 lap->apm->setSystemProperty("ro.camera.sound.forced", can_mute ? "0" : "1");
131 static int ap_init_check(const struct audio_policy *pol)
133 const struct legacy_audio_policy *lap = to_clap(pol);
134 return lap->apm->initCheck();
137 static audio_io_handle_t ap_get_output(struct audio_policy *pol,
138 audio_stream_type_t stream,
139 uint32_t sampling_rate,
142 audio_policy_output_flags_t flags)
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, channels,
149 (AudioSystem::output_flags)flags);
152 static int ap_start_output(struct audio_policy *pol, audio_io_handle_t output,
153 audio_stream_type_t stream, int session)
155 struct legacy_audio_policy *lap = to_lap(pol);
156 return lap->apm->startOutput(output, (AudioSystem::stream_type)stream,
160 static int ap_stop_output(struct audio_policy *pol, audio_io_handle_t output,
161 audio_stream_type_t stream, int session)
163 struct legacy_audio_policy *lap = to_lap(pol);
164 return lap->apm->stopOutput(output, (AudioSystem::stream_type)stream,
168 static void ap_release_output(struct audio_policy *pol,
169 audio_io_handle_t output)
171 struct legacy_audio_policy *lap = to_lap(pol);
172 lap->apm->releaseOutput(output);
175 static audio_io_handle_t ap_get_input(struct audio_policy *pol, int inputSource,
176 uint32_t sampling_rate,
179 audio_in_acoustics_t acoustics)
181 struct legacy_audio_policy *lap = to_lap(pol);
182 return lap->apm->getInput(inputSource, sampling_rate, format, channels,
183 (AudioSystem::audio_in_acoustics)acoustics);
186 static int ap_start_input(struct audio_policy *pol, audio_io_handle_t input)
188 struct legacy_audio_policy *lap = to_lap(pol);
189 return lap->apm->startInput(input);
192 static int ap_stop_input(struct audio_policy *pol, audio_io_handle_t input)
194 struct legacy_audio_policy *lap = to_lap(pol);
195 return lap->apm->stopInput(input);
198 static void ap_release_input(struct audio_policy *pol, audio_io_handle_t input)
200 struct legacy_audio_policy *lap = to_lap(pol);
201 lap->apm->releaseInput(input);
204 static void ap_init_stream_volume(struct audio_policy *pol,
205 audio_stream_type_t stream, int index_min,
208 struct legacy_audio_policy *lap = to_lap(pol);
209 lap->apm->initStreamVolume((AudioSystem::stream_type)stream, index_min,
213 static int ap_set_stream_volume_index(struct audio_policy *pol,
214 audio_stream_type_t stream,
217 struct legacy_audio_policy *lap = to_lap(pol);
218 return lap->apm->setStreamVolumeIndex((AudioSystem::stream_type)stream,
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,
231 static uint32_t ap_get_strategy_for_stream(const struct audio_policy *pol,
232 audio_stream_type_t stream)
234 const struct legacy_audio_policy *lap = to_clap(pol);
235 return lap->apm->getStrategyForStream((AudioSystem::stream_type)stream);
238 static uint32_t ap_get_devices_for_stream(const struct audio_policy *pol,
239 audio_stream_type_t stream)
241 const struct legacy_audio_policy *lap = to_clap(pol);
242 return lap->apm->getDevicesForStream((AudioSystem::stream_type)stream);
245 static audio_io_handle_t ap_get_output_for_effect(struct audio_policy *pol,
246 struct effect_descriptor_s *desc)
248 struct legacy_audio_policy *lap = to_lap(pol);
249 return lap->apm->getOutputForEffect(desc);
252 static int ap_register_effect(struct audio_policy *pol,
253 struct effect_descriptor_s *desc,
254 audio_io_handle_t io,
259 struct legacy_audio_policy *lap = to_lap(pol);
260 return lap->apm->registerEffect(desc, io, strategy, session, id);
263 static int ap_unregister_effect(struct audio_policy *pol, int id)
265 struct legacy_audio_policy *lap = to_lap(pol);
266 return lap->apm->unregisterEffect(id);
269 static int ap_set_effect_enabled(struct audio_policy *pol, int id, bool enabled)
271 struct legacy_audio_policy *lap = to_lap(pol);
272 return lap->apm->setEffectEnabled(id, enabled);
275 static bool ap_is_stream_active(const struct audio_policy *pol, audio_stream_type_t stream,
278 const struct legacy_audio_policy *lap = to_clap(pol);
279 return lap->apm->isStreamActive((int) stream, in_past_ms);
282 static int ap_dump(const struct audio_policy *pol, int fd)
284 const struct legacy_audio_policy *lap = to_clap(pol);
285 return lap->apm->dump(fd);
288 static int create_legacy_ap(const struct audio_policy_device *device,
289 struct audio_policy_service_ops *aps_ops,
291 struct audio_policy **ap)
293 struct legacy_audio_policy *lap;
296 if (!service || !aps_ops)
299 lap = (struct legacy_audio_policy *)calloc(1, sizeof(*lap));
303 lap->policy.set_device_connection_state = ap_set_device_connection_state;
304 lap->policy.get_device_connection_state = ap_get_device_connection_state;
305 lap->policy.set_phone_state = ap_set_phone_state;
306 lap->policy.set_ringer_mode = ap_set_ringer_mode;
307 lap->policy.set_force_use = ap_set_force_use;
308 lap->policy.get_force_use = ap_get_force_use;
309 lap->policy.set_can_mute_enforced_audible =
310 ap_set_can_mute_enforced_audible;
311 lap->policy.init_check = ap_init_check;
312 lap->policy.get_output = ap_get_output;
313 lap->policy.start_output = ap_start_output;
314 lap->policy.stop_output = ap_stop_output;
315 lap->policy.release_output = ap_release_output;
316 lap->policy.get_input = ap_get_input;
317 lap->policy.start_input = ap_start_input;
318 lap->policy.stop_input = ap_stop_input;
319 lap->policy.release_input = ap_release_input;
320 lap->policy.init_stream_volume = ap_init_stream_volume;
321 lap->policy.set_stream_volume_index = ap_set_stream_volume_index;
322 lap->policy.get_stream_volume_index = ap_get_stream_volume_index;
323 lap->policy.get_strategy_for_stream = ap_get_strategy_for_stream;
324 lap->policy.get_devices_for_stream = ap_get_devices_for_stream;
325 lap->policy.get_output_for_effect = ap_get_output_for_effect;
326 lap->policy.register_effect = ap_register_effect;
327 lap->policy.unregister_effect = ap_unregister_effect;
328 lap->policy.set_effect_enabled = ap_set_effect_enabled;
329 lap->policy.is_stream_active = ap_is_stream_active;
330 lap->policy.dump = ap_dump;
332 lap->service = service;
333 lap->aps_ops = aps_ops;
334 lap->service_client =
335 new AudioPolicyCompatClient(aps_ops, service);
336 if (!lap->service_client) {
338 goto err_new_compat_client;
341 lap->apm = createAudioPolicyManager(lap->service_client);
351 delete lap->service_client;
352 err_new_compat_client:
358 static int destroy_legacy_ap(const struct audio_policy_device *ap_dev,
359 struct audio_policy *ap)
361 struct legacy_audio_policy *lap = to_lap(ap);
367 destroyAudioPolicyManager(lap->apm);
368 if (lap->service_client)
369 delete lap->service_client;
374 static int legacy_ap_dev_close(hw_device_t* device)
381 static int legacy_ap_dev_open(const hw_module_t* module, const char* name,
382 hw_device_t** device)
384 struct legacy_ap_device *dev;
386 if (strcmp(name, AUDIO_POLICY_INTERFACE) != 0)
389 dev = (struct legacy_ap_device *)calloc(1, sizeof(*dev));
393 dev->device.common.tag = HARDWARE_DEVICE_TAG;
394 dev->device.common.version = 0;
395 dev->device.common.module = const_cast<hw_module_t*>(module);
396 dev->device.common.close = legacy_ap_dev_close;
397 dev->device.create_audio_policy = create_legacy_ap;
398 dev->device.destroy_audio_policy = destroy_legacy_ap;
400 *device = &dev->device.common;
405 static struct hw_module_methods_t legacy_ap_module_methods = {
406 open: legacy_ap_dev_open
409 struct legacy_ap_module HAL_MODULE_INFO_SYM = {
412 tag: HARDWARE_MODULE_TAG,
415 id: AUDIO_POLICY_HARDWARE_MODULE_ID,
416 name: "LEGACY Audio Policy HAL",
417 author: "The Android Open Source Project",
418 methods: &legacy_ap_module_methods,
427 }; // namespace android_audio_legacy