AudioPolicyInterfaceImplLegacy.cpp revision caf7f48a0ef558689d39aafd187c1571ff4128b4 
1/*
2 * Copyright (C) 2009 The Android Open Source Project
3 *
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
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
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.
15 */
16
17#define LOG_TAG "AudioPolicyService"
18//#define LOG_NDEBUG 0
19
20#include <utils/Log.h>
21#include "AudioPolicyService.h"
22#include "ServiceUtilities.h"
23
24#include <system/audio.h>
25#include <system/audio_policy.h>
26#include <hardware/audio_policy.h>
27#include <media/AudioPolicyHelper.h>
28
29namespace android {
30
31
32// ----------------------------------------------------------------------------
33
34status_t AudioPolicyService::setDeviceConnectionState(audio_devices_t device,
35                                                  audio_policy_dev_state_t state,
36                                                  const char *device_address)
37{
38    if (mpAudioPolicy == NULL) {
39        return NO_INIT;
40    }
41    if (!settingsAllowed()) {
42        return PERMISSION_DENIED;
43    }
44    if (!audio_is_output_device(device) && !audio_is_input_device(device)) {
45        return BAD_VALUE;
46    }
47    if (state != AUDIO_POLICY_DEVICE_STATE_AVAILABLE &&
48            state != AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) {
49        return BAD_VALUE;
50    }
51
52    ALOGV("setDeviceConnectionState()");
53    Mutex::Autolock _l(mLock);
54    return mpAudioPolicy->set_device_connection_state(mpAudioPolicy, device,
55                                                      state, device_address);
56}
57
58audio_policy_dev_state_t AudioPolicyService::getDeviceConnectionState(
59                                                              audio_devices_t device,
60                                                              const char *device_address)
61{
62    if (mpAudioPolicy == NULL) {
63        return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE;
64    }
65    return mpAudioPolicy->get_device_connection_state(mpAudioPolicy, device,
66                                                      device_address);
67}
68
69status_t AudioPolicyService::setPhoneState(audio_mode_t state)
70{
71    if (mpAudioPolicy == NULL) {
72        return NO_INIT;
73    }
74    if (!settingsAllowed()) {
75        return PERMISSION_DENIED;
76    }
77    if (uint32_t(state) >= AUDIO_MODE_CNT) {
78        return BAD_VALUE;
79    }
80
81    ALOGV("setPhoneState()");
82
83    // TODO: check if it is more appropriate to do it in platform specific policy manager
84    AudioSystem::setMode(state);
85
86    Mutex::Autolock _l(mLock);
87    mpAudioPolicy->set_phone_state(mpAudioPolicy, state);
88    mPhoneState = state;
89    return NO_ERROR;
90}
91
92audio_mode_t AudioPolicyService::getPhoneState()
93{
94    Mutex::Autolock _l(mLock);
95    return mPhoneState;
96}
97
98status_t AudioPolicyService::setForceUse(audio_policy_force_use_t usage,
99                                         audio_policy_forced_cfg_t config)
100{
101    if (mpAudioPolicy == NULL) {
102        return NO_INIT;
103    }
104    if (!settingsAllowed()) {
105        return PERMISSION_DENIED;
106    }
107    if (usage < 0 || usage >= AUDIO_POLICY_FORCE_USE_CNT) {
108        return BAD_VALUE;
109    }
110    if (config < 0 || config >= AUDIO_POLICY_FORCE_CFG_CNT) {
111        return BAD_VALUE;
112    }
113    ALOGV("setForceUse()");
114    Mutex::Autolock _l(mLock);
115    mpAudioPolicy->set_force_use(mpAudioPolicy, usage, config);
116    return NO_ERROR;
117}
118
119audio_policy_forced_cfg_t AudioPolicyService::getForceUse(audio_policy_force_use_t usage)
120{
121    if (mpAudioPolicy == NULL) {
122        return AUDIO_POLICY_FORCE_NONE;
123    }
124    if (usage < 0 || usage >= AUDIO_POLICY_FORCE_USE_CNT) {
125        return AUDIO_POLICY_FORCE_NONE;
126    }
127    return mpAudioPolicy->get_force_use(mpAudioPolicy, usage);
128}
129
130audio_io_handle_t AudioPolicyService::getOutput(audio_stream_type_t stream,
131                                    uint32_t samplingRate,
132                                    audio_format_t format,
133                                    audio_channel_mask_t channelMask,
134                                    audio_output_flags_t flags,
135                                    const audio_offload_info_t *offloadInfo)
136{
137    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
138        return AUDIO_IO_HANDLE_NONE;
139    }
140    if (mpAudioPolicy == NULL) {
141        return AUDIO_IO_HANDLE_NONE;
142    }
143    ALOGV("getOutput()");
144    Mutex::Autolock _l(mLock);
145    return mpAudioPolicy->get_output(mpAudioPolicy, stream, samplingRate,
146                                    format, channelMask, flags, offloadInfo);
147}
148
149status_t AudioPolicyService::startOutput(audio_io_handle_t output,
150                                         audio_stream_type_t stream,
151                                         audio_session_t session)
152{
153    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
154        return BAD_VALUE;
155    }
156    if (mpAudioPolicy == NULL) {
157        return NO_INIT;
158    }
159    ALOGV("startOutput()");
160    // create audio processors according to stream
161    sp<AudioPolicyEffects>audioPolicyEffects;
162    {
163        Mutex::Autolock _l(mLock);
164        audioPolicyEffects = mAudioPolicyEffects;
165    }
166    if (audioPolicyEffects != 0) {
167        status_t status = audioPolicyEffects->addOutputSessionEffects(output, stream, session);
168        if (status != NO_ERROR && status != ALREADY_EXISTS) {
169            ALOGW("Failed to add effects on session %d", session);
170        }
171    }
172
173    Mutex::Autolock _l(mLock);
174    return mpAudioPolicy->start_output(mpAudioPolicy, output, stream, session);
175}
176
177status_t AudioPolicyService::stopOutput(audio_io_handle_t output,
178                                        audio_stream_type_t stream,
179                                        audio_session_t session)
180{
181    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
182        return BAD_VALUE;
183    }
184    if (mpAudioPolicy == NULL) {
185        return NO_INIT;
186    }
187    ALOGV("stopOutput()");
188    mOutputCommandThread->stopOutputCommand(output, stream, session);
189    return NO_ERROR;
190}
191
192status_t  AudioPolicyService::doStopOutput(audio_io_handle_t output,
193                                      audio_stream_type_t stream,
194                                      audio_session_t session)
195{
196    ALOGV("doStopOutput from tid %d", gettid());
197    // release audio processors from the stream
198    sp<AudioPolicyEffects>audioPolicyEffects;
199    {
200        Mutex::Autolock _l(mLock);
201        audioPolicyEffects = mAudioPolicyEffects;
202    }
203    if (audioPolicyEffects != 0) {
204        status_t status = audioPolicyEffects->releaseOutputSessionEffects(output, stream, session);
205        if (status != NO_ERROR && status != ALREADY_EXISTS) {
206            ALOGW("Failed to release effects on session %d", session);
207        }
208    }
209    Mutex::Autolock _l(mLock);
210    return mpAudioPolicy->stop_output(mpAudioPolicy, output, stream, session);
211}
212
213void AudioPolicyService::releaseOutput(audio_io_handle_t output,
214                                       audio_stream_type_t stream,
215                                       audio_session_t session)
216{
217    if (mpAudioPolicy == NULL) {
218        return;
219    }
220    ALOGV("releaseOutput()");
221    mOutputCommandThread->releaseOutputCommand(output, stream, session);
222}
223
224void AudioPolicyService::doReleaseOutput(audio_io_handle_t output,
225                                         audio_stream_type_t stream __unused,
226                                         audio_session_t session __unused)
227{
228    ALOGV("doReleaseOutput from tid %d", gettid());
229    Mutex::Autolock _l(mLock);
230    mpAudioPolicy->release_output(mpAudioPolicy, output);
231}
232
233status_t AudioPolicyService::getInputForAttr(const audio_attributes_t *attr,
234                                             audio_io_handle_t *input,
235                                             audio_session_t session,
236                                             uint32_t samplingRate,
237                                             audio_format_t format,
238                                             audio_channel_mask_t channelMask,
239                                             audio_input_flags_t flags __unused)
240{
241    if (mpAudioPolicy == NULL) {
242        return NO_INIT;
243    }
244    // already checked by client, but double-check in case the client wrapper is bypassed
245    if (attr->source >= AUDIO_SOURCE_CNT && attr->source != AUDIO_SOURCE_HOTWORD &&
246        attr->source != AUDIO_SOURCE_FM_TUNER) {
247        return BAD_VALUE;
248    }
249
250    if (((attr->source == AUDIO_SOURCE_HOTWORD) && !captureHotwordAllowed()) ||
251        ((attr->source == AUDIO_SOURCE_FM_TUNER) && !captureFmTunerAllowed())) {
252        return BAD_VALUE;
253    }
254
255    sp<AudioPolicyEffects>audioPolicyEffects;
256    {
257        Mutex::Autolock _l(mLock);
258        // the audio_in_acoustics_t parameter is ignored by get_input()
259        *input = mpAudioPolicy->get_input(mpAudioPolicy, attr->source, samplingRate,
260                                             format, channelMask, (audio_in_acoustics_t) 0);
261        audioPolicyEffects = mAudioPolicyEffects;
262    }
263    if (*input == AUDIO_IO_HANDLE_NONE) {
264        return INVALID_OPERATION;
265    }
266
267    if (audioPolicyEffects != 0) {
268        // create audio pre processors according to input source
269        status_t status = audioPolicyEffects->addInputEffects(*input, attr->source, session);
270        if (status != NO_ERROR && status != ALREADY_EXISTS) {
271            ALOGW("Failed to add effects on input %d", input);
272        }
273    }
274    return NO_ERROR;
275}
276
277status_t AudioPolicyService::startInput(audio_io_handle_t input,
278                                        audio_session_t session __unused)
279{
280    if (mpAudioPolicy == NULL) {
281        return NO_INIT;
282    }
283    Mutex::Autolock _l(mLock);
284
285    return mpAudioPolicy->start_input(mpAudioPolicy, input);
286}
287
288status_t AudioPolicyService::stopInput(audio_io_handle_t input,
289                                       audio_session_t session __unused)
290{
291    if (mpAudioPolicy == NULL) {
292        return NO_INIT;
293    }
294    Mutex::Autolock _l(mLock);
295
296    return mpAudioPolicy->stop_input(mpAudioPolicy, input);
297}
298
299void AudioPolicyService::releaseInput(audio_io_handle_t input,
300                                      audio_session_t session __unused)
301{
302    if (mpAudioPolicy == NULL) {
303        return;
304    }
305
306    sp<AudioPolicyEffects>audioPolicyEffects;
307    {
308        Mutex::Autolock _l(mLock);
309        mpAudioPolicy->release_input(mpAudioPolicy, input);
310        audioPolicyEffects = mAudioPolicyEffects;
311    }
312    if (audioPolicyEffects != 0) {
313        // release audio processors from the input
314        status_t status = audioPolicyEffects->releaseInputEffects(input);
315        if(status != NO_ERROR) {
316            ALOGW("Failed to release effects on input %d", input);
317        }
318    }
319}
320
321status_t AudioPolicyService::initStreamVolume(audio_stream_type_t stream,
322                                            int indexMin,
323                                            int indexMax)
324{
325    if (mpAudioPolicy == NULL) {
326        return NO_INIT;
327    }
328    if (!settingsAllowed()) {
329        return PERMISSION_DENIED;
330    }
331    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
332        return BAD_VALUE;
333    }
334    Mutex::Autolock _l(mLock);
335    mpAudioPolicy->init_stream_volume(mpAudioPolicy, stream, indexMin, indexMax);
336    return NO_ERROR;
337}
338
339status_t AudioPolicyService::setStreamVolumeIndex(audio_stream_type_t stream,
340                                                  int index,
341                                                  audio_devices_t device)
342{
343    if (mpAudioPolicy == NULL) {
344        return NO_INIT;
345    }
346    if (!settingsAllowed()) {
347        return PERMISSION_DENIED;
348    }
349    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
350        return BAD_VALUE;
351    }
352    Mutex::Autolock _l(mLock);
353    if (mpAudioPolicy->set_stream_volume_index_for_device) {
354        return mpAudioPolicy->set_stream_volume_index_for_device(mpAudioPolicy,
355                                                                stream,
356                                                                index,
357                                                                device);
358    } else {
359        return mpAudioPolicy->set_stream_volume_index(mpAudioPolicy, stream, index);
360    }
361}
362
363status_t AudioPolicyService::getStreamVolumeIndex(audio_stream_type_t stream,
364                                                  int *index,
365                                                  audio_devices_t device)
366{
367    if (mpAudioPolicy == NULL) {
368        return NO_INIT;
369    }
370    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
371        return BAD_VALUE;
372    }
373    Mutex::Autolock _l(mLock);
374    if (mpAudioPolicy->get_stream_volume_index_for_device) {
375        return mpAudioPolicy->get_stream_volume_index_for_device(mpAudioPolicy,
376                                                                stream,
377                                                                index,
378                                                                device);
379    } else {
380        return mpAudioPolicy->get_stream_volume_index(mpAudioPolicy, stream, index);
381    }
382}
383
384uint32_t AudioPolicyService::getStrategyForStream(audio_stream_type_t stream)
385{
386    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
387        return 0;
388    }
389    if (mpAudioPolicy == NULL) {
390        return 0;
391    }
392    return mpAudioPolicy->get_strategy_for_stream(mpAudioPolicy, stream);
393}
394
395//audio policy: use audio_device_t appropriately
396
397audio_devices_t AudioPolicyService::getDevicesForStream(audio_stream_type_t stream)
398{
399    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
400        return AUDIO_DEVICE_NONE;
401    }
402    if (mpAudioPolicy == NULL) {
403        return AUDIO_DEVICE_NONE;
404    }
405    return mpAudioPolicy->get_devices_for_stream(mpAudioPolicy, stream);
406}
407
408audio_io_handle_t AudioPolicyService::getOutputForEffect(const effect_descriptor_t *desc)
409{
410    // FIXME change return type to status_t, and return NO_INIT here
411    if (mpAudioPolicy == NULL) {
412        return 0;
413    }
414    Mutex::Autolock _l(mLock);
415    return mpAudioPolicy->get_output_for_effect(mpAudioPolicy, desc);
416}
417
418status_t AudioPolicyService::registerEffect(const effect_descriptor_t *desc,
419                                audio_io_handle_t io,
420                                uint32_t strategy,
421                                int session,
422                                int id)
423{
424    if (mpAudioPolicy == NULL) {
425        return NO_INIT;
426    }
427    return mpAudioPolicy->register_effect(mpAudioPolicy, desc, io, strategy, session, id);
428}
429
430status_t AudioPolicyService::unregisterEffect(int id)
431{
432    if (mpAudioPolicy == NULL) {
433        return NO_INIT;
434    }
435    return mpAudioPolicy->unregister_effect(mpAudioPolicy, id);
436}
437
438status_t AudioPolicyService::setEffectEnabled(int id, bool enabled)
439{
440    if (mpAudioPolicy == NULL) {
441        return NO_INIT;
442    }
443    return mpAudioPolicy->set_effect_enabled(mpAudioPolicy, id, enabled);
444}
445
446bool AudioPolicyService::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const
447{
448    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
449        return false;
450    }
451    if (mpAudioPolicy == NULL) {
452        return false;
453    }
454    Mutex::Autolock _l(mLock);
455    return mpAudioPolicy->is_stream_active(mpAudioPolicy, stream, inPastMs);
456}
457
458bool AudioPolicyService::isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs) const
459{
460    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
461        return false;
462    }
463    if (mpAudioPolicy == NULL) {
464        return false;
465    }
466    Mutex::Autolock _l(mLock);
467    return mpAudioPolicy->is_stream_active_remotely(mpAudioPolicy, stream, inPastMs);
468}
469
470bool AudioPolicyService::isSourceActive(audio_source_t source) const
471{
472    if (mpAudioPolicy == NULL) {
473        return false;
474    }
475    if (mpAudioPolicy->is_source_active == 0) {
476        return false;
477    }
478    Mutex::Autolock _l(mLock);
479    return mpAudioPolicy->is_source_active(mpAudioPolicy, source);
480}
481
482status_t AudioPolicyService::queryDefaultPreProcessing(int audioSession,
483                                                       effect_descriptor_t *descriptors,
484                                                       uint32_t *count)
485{
486    if (mpAudioPolicy == NULL) {
487        *count = 0;
488        return NO_INIT;
489    }
490    sp<AudioPolicyEffects>audioPolicyEffects;
491    {
492        Mutex::Autolock _l(mLock);
493        audioPolicyEffects = mAudioPolicyEffects;
494    }
495    if (audioPolicyEffects == 0) {
496        *count = 0;
497        return NO_INIT;
498    }
499    return audioPolicyEffects->queryDefaultInputEffects(audioSession, descriptors, count);
500}
501
502bool AudioPolicyService::isOffloadSupported(const audio_offload_info_t& info)
503{
504    if (mpAudioPolicy == NULL) {
505        ALOGV("mpAudioPolicy == NULL");
506        return false;
507    }
508
509    if (mpAudioPolicy->is_offload_supported == NULL) {
510        ALOGV("HAL does not implement is_offload_supported");
511        return false;
512    }
513
514    return mpAudioPolicy->is_offload_supported(mpAudioPolicy, &info);
515}
516
517status_t AudioPolicyService::listAudioPorts(audio_port_role_t role __unused,
518                                            audio_port_type_t type __unused,
519                                            unsigned int *num_ports,
520                                            struct audio_port *ports __unused,
521                                            unsigned int *generation __unused)
522{
523    *num_ports = 0;
524    return INVALID_OPERATION;
525}
526
527status_t AudioPolicyService::getAudioPort(struct audio_port *port __unused)
528{
529    return INVALID_OPERATION;
530}
531
532status_t AudioPolicyService::createAudioPatch(const struct audio_patch *patch __unused,
533        audio_patch_handle_t *handle __unused)
534{
535    return INVALID_OPERATION;
536}
537
538status_t AudioPolicyService::releaseAudioPatch(audio_patch_handle_t handle __unused)
539{
540    return INVALID_OPERATION;
541}
542
543status_t AudioPolicyService::listAudioPatches(unsigned int *num_patches,
544        struct audio_patch *patches __unused,
545        unsigned int *generation __unused)
546{
547    *num_patches = 0;
548    return INVALID_OPERATION;
549}
550
551status_t AudioPolicyService::setAudioPortConfig(const struct audio_port_config *config __unused)
552{
553    return INVALID_OPERATION;
554}
555
556status_t AudioPolicyService::getOutputForAttr(const audio_attributes_t *attr,
557                                              audio_io_handle_t *output,
558                                              audio_session_t session,
559                                              audio_stream_type_t *stream,
560                                              uint32_t samplingRate,
561                                              audio_format_t format,
562                                              audio_channel_mask_t channelMask,
563                                              audio_output_flags_t flags,
564                                              const audio_offload_info_t *offloadInfo)
565{
566    if (attr != NULL) {
567        *stream = audio_attributes_to_stream_type(attr);
568    } else {
569        if (*stream == AUDIO_STREAM_DEFAULT) {
570            return BAD_VALUE;
571        }
572    }
573    *output = getOutput(*stream, samplingRate, format, channelMask,
574                                          flags, offloadInfo);
575    if (*output == AUDIO_IO_HANDLE_NONE) {
576        return INVALID_OPERATION;
577    }
578    return NO_ERROR;
579}
580
581status_t AudioPolicyService::acquireSoundTriggerSession(audio_session_t *session __unused,
582                                       audio_io_handle_t *ioHandle __unused,
583                                       audio_devices_t *device __unused)
584{
585    return INVALID_OPERATION;
586}
587
588status_t AudioPolicyService::releaseSoundTriggerSession(audio_session_t session __unused)
589{
590    return INVALID_OPERATION;
591}
592
593}; // namespace android
594