AudioPolicyInterfaceImplLegacy.cpp revision 223fd5c9738e9665e495904d37d4632414b68c1e 
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                                         int 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                                        int 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                                      int 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{
215    if (mpAudioPolicy == NULL) {
216        return;
217    }
218    ALOGV("releaseOutput()");
219    mOutputCommandThread->releaseOutputCommand(output);
220}
221
222void AudioPolicyService::doReleaseOutput(audio_io_handle_t output)
223{
224    ALOGV("doReleaseOutput from tid %d", gettid());
225    Mutex::Autolock _l(mLock);
226    mpAudioPolicy->release_output(mpAudioPolicy, output);
227}
228
229audio_io_handle_t AudioPolicyService::getInput(audio_source_t inputSource,
230                                    uint32_t samplingRate,
231                                    audio_format_t format,
232                                    audio_channel_mask_t channelMask,
233                                    int audioSession,
234                                    audio_input_flags_t flags __unused)
235{
236    if (mpAudioPolicy == NULL) {
237        return 0;
238    }
239    // already checked by client, but double-check in case the client wrapper is bypassed
240    if (inputSource >= AUDIO_SOURCE_CNT && inputSource != AUDIO_SOURCE_HOTWORD &&
241        inputSource != AUDIO_SOURCE_FM_TUNER) {
242        return 0;
243    }
244
245    if (((inputSource == AUDIO_SOURCE_HOTWORD) && !captureHotwordAllowed()) ||
246        ((inputSource == AUDIO_SOURCE_FM_TUNER) && !captureFmTunerAllowed())) {
247        return 0;
248    }
249
250    audio_io_handle_t input;
251    sp<AudioPolicyEffects>audioPolicyEffects;
252    {
253        Mutex::Autolock _l(mLock);
254        // the audio_in_acoustics_t parameter is ignored by get_input()
255        input = mpAudioPolicy->get_input(mpAudioPolicy, inputSource, samplingRate,
256                                             format, channelMask, (audio_in_acoustics_t) 0);
257        audioPolicyEffects = mAudioPolicyEffects;
258    }
259    if (input == 0) {
260        return input;
261    }
262
263    if (audioPolicyEffects != 0) {
264        // create audio pre processors according to input source
265        status_t status = audioPolicyEffects->addInputEffects(input, inputSource, audioSession);
266        if (status != NO_ERROR && status != ALREADY_EXISTS) {
267            ALOGW("Failed to add effects on input %d", input);
268        }
269    }
270    return input;
271}
272
273status_t AudioPolicyService::startInput(audio_io_handle_t input,
274                                        audio_session_t session __unused)
275{
276    if (mpAudioPolicy == NULL) {
277        return NO_INIT;
278    }
279    Mutex::Autolock _l(mLock);
280
281    return mpAudioPolicy->start_input(mpAudioPolicy, input);
282}
283
284status_t AudioPolicyService::stopInput(audio_io_handle_t input,
285                                       audio_session_t session __unused)
286{
287    if (mpAudioPolicy == NULL) {
288        return NO_INIT;
289    }
290    Mutex::Autolock _l(mLock);
291
292    return mpAudioPolicy->stop_input(mpAudioPolicy, input);
293}
294
295void AudioPolicyService::releaseInput(audio_io_handle_t input,
296                                      audio_session_t session __unused)
297{
298    if (mpAudioPolicy == NULL) {
299        return;
300    }
301
302    sp<AudioPolicyEffects>audioPolicyEffects;
303    {
304        Mutex::Autolock _l(mLock);
305        mpAudioPolicy->release_input(mpAudioPolicy, input);
306        audioPolicyEffects = mAudioPolicyEffects;
307    }
308    if (audioPolicyEffects != 0) {
309        // release audio processors from the input
310        status_t status = audioPolicyEffects->releaseInputEffects(input);
311        if(status != NO_ERROR) {
312            ALOGW("Failed to release effects on input %d", input);
313        }
314    }
315}
316
317status_t AudioPolicyService::initStreamVolume(audio_stream_type_t stream,
318                                            int indexMin,
319                                            int indexMax)
320{
321    if (mpAudioPolicy == NULL) {
322        return NO_INIT;
323    }
324    if (!settingsAllowed()) {
325        return PERMISSION_DENIED;
326    }
327    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
328        return BAD_VALUE;
329    }
330    Mutex::Autolock _l(mLock);
331    mpAudioPolicy->init_stream_volume(mpAudioPolicy, stream, indexMin, indexMax);
332    return NO_ERROR;
333}
334
335status_t AudioPolicyService::setStreamVolumeIndex(audio_stream_type_t stream,
336                                                  int index,
337                                                  audio_devices_t device)
338{
339    if (mpAudioPolicy == NULL) {
340        return NO_INIT;
341    }
342    if (!settingsAllowed()) {
343        return PERMISSION_DENIED;
344    }
345    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
346        return BAD_VALUE;
347    }
348    Mutex::Autolock _l(mLock);
349    if (mpAudioPolicy->set_stream_volume_index_for_device) {
350        return mpAudioPolicy->set_stream_volume_index_for_device(mpAudioPolicy,
351                                                                stream,
352                                                                index,
353                                                                device);
354    } else {
355        return mpAudioPolicy->set_stream_volume_index(mpAudioPolicy, stream, index);
356    }
357}
358
359status_t AudioPolicyService::getStreamVolumeIndex(audio_stream_type_t stream,
360                                                  int *index,
361                                                  audio_devices_t device)
362{
363    if (mpAudioPolicy == NULL) {
364        return NO_INIT;
365    }
366    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
367        return BAD_VALUE;
368    }
369    Mutex::Autolock _l(mLock);
370    if (mpAudioPolicy->get_stream_volume_index_for_device) {
371        return mpAudioPolicy->get_stream_volume_index_for_device(mpAudioPolicy,
372                                                                stream,
373                                                                index,
374                                                                device);
375    } else {
376        return mpAudioPolicy->get_stream_volume_index(mpAudioPolicy, stream, index);
377    }
378}
379
380uint32_t AudioPolicyService::getStrategyForStream(audio_stream_type_t stream)
381{
382    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
383        return 0;
384    }
385    if (mpAudioPolicy == NULL) {
386        return 0;
387    }
388    return mpAudioPolicy->get_strategy_for_stream(mpAudioPolicy, stream);
389}
390
391//audio policy: use audio_device_t appropriately
392
393audio_devices_t AudioPolicyService::getDevicesForStream(audio_stream_type_t stream)
394{
395    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
396        return AUDIO_DEVICE_NONE;
397    }
398    if (mpAudioPolicy == NULL) {
399        return AUDIO_DEVICE_NONE;
400    }
401    return mpAudioPolicy->get_devices_for_stream(mpAudioPolicy, stream);
402}
403
404audio_io_handle_t AudioPolicyService::getOutputForEffect(const effect_descriptor_t *desc)
405{
406    // FIXME change return type to status_t, and return NO_INIT here
407    if (mpAudioPolicy == NULL) {
408        return 0;
409    }
410    Mutex::Autolock _l(mLock);
411    return mpAudioPolicy->get_output_for_effect(mpAudioPolicy, desc);
412}
413
414status_t AudioPolicyService::registerEffect(const effect_descriptor_t *desc,
415                                audio_io_handle_t io,
416                                uint32_t strategy,
417                                int session,
418                                int id)
419{
420    if (mpAudioPolicy == NULL) {
421        return NO_INIT;
422    }
423    return mpAudioPolicy->register_effect(mpAudioPolicy, desc, io, strategy, session, id);
424}
425
426status_t AudioPolicyService::unregisterEffect(int id)
427{
428    if (mpAudioPolicy == NULL) {
429        return NO_INIT;
430    }
431    return mpAudioPolicy->unregister_effect(mpAudioPolicy, id);
432}
433
434status_t AudioPolicyService::setEffectEnabled(int id, bool enabled)
435{
436    if (mpAudioPolicy == NULL) {
437        return NO_INIT;
438    }
439    return mpAudioPolicy->set_effect_enabled(mpAudioPolicy, id, enabled);
440}
441
442bool AudioPolicyService::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const
443{
444    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
445        return false;
446    }
447    if (mpAudioPolicy == NULL) {
448        return false;
449    }
450    Mutex::Autolock _l(mLock);
451    return mpAudioPolicy->is_stream_active(mpAudioPolicy, stream, inPastMs);
452}
453
454bool AudioPolicyService::isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs) const
455{
456    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
457        return false;
458    }
459    if (mpAudioPolicy == NULL) {
460        return false;
461    }
462    Mutex::Autolock _l(mLock);
463    return mpAudioPolicy->is_stream_active_remotely(mpAudioPolicy, stream, inPastMs);
464}
465
466bool AudioPolicyService::isSourceActive(audio_source_t source) const
467{
468    if (mpAudioPolicy == NULL) {
469        return false;
470    }
471    if (mpAudioPolicy->is_source_active == 0) {
472        return false;
473    }
474    Mutex::Autolock _l(mLock);
475    return mpAudioPolicy->is_source_active(mpAudioPolicy, source);
476}
477
478status_t AudioPolicyService::queryDefaultPreProcessing(int audioSession,
479                                                       effect_descriptor_t *descriptors,
480                                                       uint32_t *count)
481{
482    if (mpAudioPolicy == NULL) {
483        *count = 0;
484        return NO_INIT;
485    }
486    sp<AudioPolicyEffects>audioPolicyEffects;
487    {
488        Mutex::Autolock _l(mLock);
489        audioPolicyEffects = mAudioPolicyEffects;
490    }
491    if (audioPolicyEffects == 0) {
492        *count = 0;
493        return NO_INIT;
494    }
495    return audioPolicyEffects->queryDefaultInputEffects(audioSession, descriptors, count);
496}
497
498bool AudioPolicyService::isOffloadSupported(const audio_offload_info_t& info)
499{
500    if (mpAudioPolicy == NULL) {
501        ALOGV("mpAudioPolicy == NULL");
502        return false;
503    }
504
505    if (mpAudioPolicy->is_offload_supported == NULL) {
506        ALOGV("HAL does not implement is_offload_supported");
507        return false;
508    }
509
510    return mpAudioPolicy->is_offload_supported(mpAudioPolicy, &info);
511}
512
513status_t AudioPolicyService::listAudioPorts(audio_port_role_t role __unused,
514                                            audio_port_type_t type __unused,
515                                            unsigned int *num_ports,
516                                            struct audio_port *ports __unused,
517                                            unsigned int *generation __unused)
518{
519    *num_ports = 0;
520    return INVALID_OPERATION;
521}
522
523status_t AudioPolicyService::getAudioPort(struct audio_port *port __unused)
524{
525    return INVALID_OPERATION;
526}
527
528status_t AudioPolicyService::createAudioPatch(const struct audio_patch *patch __unused,
529        audio_patch_handle_t *handle __unused)
530{
531    return INVALID_OPERATION;
532}
533
534status_t AudioPolicyService::releaseAudioPatch(audio_patch_handle_t handle __unused)
535{
536    return INVALID_OPERATION;
537}
538
539status_t AudioPolicyService::listAudioPatches(unsigned int *num_patches,
540        struct audio_patch *patches __unused,
541        unsigned int *generation __unused)
542{
543    *num_patches = 0;
544    return INVALID_OPERATION;
545}
546
547status_t AudioPolicyService::setAudioPortConfig(const struct audio_port_config *config __unused)
548{
549    return INVALID_OPERATION;
550}
551
552audio_io_handle_t AudioPolicyService::getOutputForAttr(const audio_attributes_t *attr,
553                                    uint32_t samplingRate,
554                                    audio_format_t format,
555                                    audio_channel_mask_t channelMask,
556                                    audio_output_flags_t flags,
557                                    const audio_offload_info_t *offloadInfo)
558{
559    audio_stream_type_t stream = audio_attributes_to_stream_type(attr);
560
561    return getOutput(stream, samplingRate, format, channelMask, flags, offloadInfo);
562}
563
564status_t AudioPolicyService::acquireSoundTriggerSession(audio_session_t *session __unused,
565                                       audio_io_handle_t *ioHandle __unused,
566                                       audio_devices_t *device __unused)
567{
568    return INVALID_OPERATION;
569}
570
571status_t AudioPolicyService::releaseSoundTriggerSession(audio_session_t session __unused)
572{
573    return INVALID_OPERATION;
574}
575
576}; // namespace android
577