2 * Copyright (C) 2009 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 "AudioPolicyManagerBase"
18 //#define LOG_NDEBUG 0
20 //#define VERY_VERBOSE_LOGGING
21 #ifdef VERY_VERBOSE_LOGGING
24 #define ALOGVV(a...) do { } while(0)
27 // A device mask for all audio input devices that are considered "virtual" when evaluating
28 // active inputs in getActiveInput()
29 #define APM_AUDIO_IN_DEVICE_VIRTUAL_ALL AUDIO_DEVICE_IN_REMOTE_SUBMIX
31 #include <utils/Log.h>
32 #include <hardware_legacy/AudioPolicyManagerBase.h>
33 #include <hardware/audio_effect.h>
34 #include <hardware/audio.h>
36 #include <hardware_legacy/audio_policy_conf.h>
38 namespace android_audio_legacy {
40 // ----------------------------------------------------------------------------
41 // AudioPolicyInterface implementation
42 // ----------------------------------------------------------------------------
45 status_t AudioPolicyManagerBase::setDeviceConnectionState(audio_devices_t device,
46 AudioSystem::device_connection_state state,
47 const char *device_address)
49 SortedVector <audio_io_handle_t> outputs;
51 ALOGV("setDeviceConnectionState() device: %x, state %d, address %s", device, state, device_address);
53 // connect/disconnect only 1 device at a time
54 if (!audio_is_output_device(device) && !audio_is_input_device(device)) return BAD_VALUE;
56 if (strlen(device_address) >= MAX_DEVICE_ADDRESS_LEN) {
57 ALOGE("setDeviceConnectionState() invalid address: %s", device_address);
61 // handle output devices
62 if (audio_is_output_device(device)) {
64 if (!mHasA2dp && audio_is_a2dp_device(device)) {
65 ALOGE("setDeviceConnectionState() invalid A2DP device: %x", device);
68 if (!mHasUsb && audio_is_usb_device(device)) {
69 ALOGE("setDeviceConnectionState() invalid USB audio device: %x", device);
72 if (!mHasRemoteSubmix && audio_is_remote_submix_device((audio_devices_t)device)) {
73 ALOGE("setDeviceConnectionState() invalid remote submix audio device: %x", device);
77 // save a copy of the opened output descriptors before any output is opened or closed
78 // by checkOutputsForDevice(). This will be needed by checkOutputForAllStrategies()
79 mPreviousOutputs = mOutputs;
82 // handle output device connection
83 case AudioSystem::DEVICE_STATE_AVAILABLE:
84 if (mAvailableOutputDevices & device) {
85 ALOGW("setDeviceConnectionState() device already connected: %x", device);
86 return INVALID_OPERATION;
88 ALOGV("setDeviceConnectionState() connecting device %x", device);
90 if (checkOutputsForDevice(device, state, outputs) != NO_ERROR) {
91 return INVALID_OPERATION;
93 ALOGV("setDeviceConnectionState() checkOutputsForDevice() returned %d outputs",
95 // register new device as available
96 mAvailableOutputDevices = (audio_devices_t)(mAvailableOutputDevices | device);
98 if (!outputs.isEmpty()) {
100 if (mHasA2dp && audio_is_a2dp_device(device)) {
101 // handle A2DP device connection
102 AudioParameter param;
103 param.add(String8(AUDIO_PARAMETER_A2DP_SINK_ADDRESS), String8(device_address));
104 paramStr = param.toString();
105 mA2dpDeviceAddress = String8(device_address, MAX_DEVICE_ADDRESS_LEN);
106 mA2dpSuspended = false;
107 } else if (audio_is_bluetooth_sco_device(device)) {
108 // handle SCO device connection
109 mScoDeviceAddress = String8(device_address, MAX_DEVICE_ADDRESS_LEN);
110 } else if (mHasUsb && audio_is_usb_device(device)) {
111 // handle USB device connection
112 mUsbCardAndDevice = String8(device_address, MAX_DEVICE_ADDRESS_LEN);
113 paramStr = mUsbCardAndDevice;
115 // not currently handling multiple simultaneous submixes: ignoring remote submix
117 if (!paramStr.isEmpty()) {
118 for (size_t i = 0; i < outputs.size(); i++) {
119 mpClientInterface->setParameters(outputs[i], paramStr);
124 // handle output device disconnection
125 case AudioSystem::DEVICE_STATE_UNAVAILABLE: {
126 if (!(mAvailableOutputDevices & device)) {
127 ALOGW("setDeviceConnectionState() device not connected: %x", device);
128 return INVALID_OPERATION;
131 ALOGV("setDeviceConnectionState() disconnecting device %x", device);
132 // remove device from available output devices
133 mAvailableOutputDevices = (audio_devices_t)(mAvailableOutputDevices & ~device);
135 checkOutputsForDevice(device, state, outputs);
136 if (mHasA2dp && audio_is_a2dp_device(device)) {
137 // handle A2DP device disconnection
138 mA2dpDeviceAddress = "";
139 mA2dpSuspended = false;
140 } else if (audio_is_bluetooth_sco_device(device)) {
141 // handle SCO device disconnection
142 mScoDeviceAddress = "";
143 } else if (mHasUsb && audio_is_usb_device(device)) {
144 // handle USB device disconnection
145 mUsbCardAndDevice = "";
147 // not currently handling multiple simultaneous submixes: ignoring remote submix
152 ALOGE("setDeviceConnectionState() invalid state: %x", state);
157 checkOutputForAllStrategies();
158 // outputs must be closed after checkOutputForAllStrategies() is executed
159 if (!outputs.isEmpty()) {
160 for (size_t i = 0; i < outputs.size(); i++) {
161 // close unused outputs after device disconnection or direct outputs that have been
162 // opened by checkOutputsForDevice() to query dynamic parameters
163 if ((state == AudioSystem::DEVICE_STATE_UNAVAILABLE) ||
164 (mOutputs.valueFor(outputs[i])->mFlags & AUDIO_OUTPUT_FLAG_DIRECT)) {
165 closeOutput(outputs[i]);
170 updateDevicesAndOutputs();
171 for (size_t i = 0; i < mOutputs.size(); i++) {
172 setOutputDevice(mOutputs.keyAt(i),
173 getNewDevice(mOutputs.keyAt(i), true /*fromCache*/),
178 if (device == AUDIO_DEVICE_OUT_WIRED_HEADSET) {
179 device = AUDIO_DEVICE_IN_WIRED_HEADSET;
180 } else if (device == AUDIO_DEVICE_OUT_BLUETOOTH_SCO ||
181 device == AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET ||
182 device == AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT) {
183 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET;
188 // handle input devices
189 if (audio_is_input_device(device)) {
193 // handle input device connection
194 case AudioSystem::DEVICE_STATE_AVAILABLE: {
195 if (mAvailableInputDevices & device) {
196 ALOGW("setDeviceConnectionState() device already connected: %d", device);
197 return INVALID_OPERATION;
199 mAvailableInputDevices = mAvailableInputDevices | (device & ~AUDIO_DEVICE_BIT_IN);
203 // handle input device disconnection
204 case AudioSystem::DEVICE_STATE_UNAVAILABLE: {
205 if (!(mAvailableInputDevices & device)) {
206 ALOGW("setDeviceConnectionState() device not connected: %d", device);
207 return INVALID_OPERATION;
209 mAvailableInputDevices = (audio_devices_t) (mAvailableInputDevices & ~device);
213 ALOGE("setDeviceConnectionState() invalid state: %x", state);
217 audio_io_handle_t activeInput = getActiveInput();
218 if (activeInput != 0) {
219 AudioInputDescriptor *inputDesc = mInputs.valueFor(activeInput);
220 audio_devices_t newDevice = getDeviceForInputSource(inputDesc->mInputSource);
221 if ((newDevice != AUDIO_DEVICE_NONE) && (newDevice != inputDesc->mDevice)) {
222 ALOGV("setDeviceConnectionState() changing device from %x to %x for input %d",
223 inputDesc->mDevice, newDevice, activeInput);
224 inputDesc->mDevice = newDevice;
225 AudioParameter param = AudioParameter();
226 param.addInt(String8(AudioParameter::keyRouting), (int)newDevice);
227 mpClientInterface->setParameters(activeInput, param.toString());
234 ALOGW("setDeviceConnectionState() invalid device: %x", device);
238 AudioSystem::device_connection_state AudioPolicyManagerBase::getDeviceConnectionState(audio_devices_t device,
239 const char *device_address)
241 AudioSystem::device_connection_state state = AudioSystem::DEVICE_STATE_UNAVAILABLE;
242 String8 address = String8(device_address);
243 if (audio_is_output_device(device)) {
244 if (device & mAvailableOutputDevices) {
245 if (audio_is_a2dp_device(device) &&
246 (!mHasA2dp || (address != "" && mA2dpDeviceAddress != address))) {
249 if (audio_is_bluetooth_sco_device(device) &&
250 address != "" && mScoDeviceAddress != address) {
253 if (audio_is_usb_device(device) &&
254 (!mHasUsb || (address != "" && mUsbCardAndDevice != address))) {
255 ALOGE("getDeviceConnectionState() invalid device: %x", device);
258 if (audio_is_remote_submix_device((audio_devices_t)device) && !mHasRemoteSubmix) {
261 state = AudioSystem::DEVICE_STATE_AVAILABLE;
263 } else if (audio_is_input_device(device)) {
264 if (device & mAvailableInputDevices) {
265 state = AudioSystem::DEVICE_STATE_AVAILABLE;
272 void AudioPolicyManagerBase::setPhoneState(int state)
274 ALOGV("setPhoneState() state %d", state);
275 audio_devices_t newDevice = AUDIO_DEVICE_NONE;
276 if (state < 0 || state >= AudioSystem::NUM_MODES) {
277 ALOGW("setPhoneState() invalid state %d", state);
281 if (state == mPhoneState ) {
282 ALOGW("setPhoneState() setting same state %d", state);
286 // if leaving call state, handle special case of active streams
287 // pertaining to sonification strategy see handleIncallSonification()
289 ALOGV("setPhoneState() in call state management: new state is %d", state);
290 for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) {
291 handleIncallSonification(stream, false, true);
295 // store previous phone state for management of sonification strategy below
296 int oldState = mPhoneState;
300 // are we entering or starting a call
301 if (!isStateInCall(oldState) && isStateInCall(state)) {
302 ALOGV(" Entering call in setPhoneState()");
303 // force routing command to audio hardware when starting a call
304 // even if no device change is needed
306 } else if (isStateInCall(oldState) && !isStateInCall(state)) {
307 ALOGV(" Exiting call in setPhoneState()");
308 // force routing command to audio hardware when exiting a call
309 // even if no device change is needed
311 } else if (isStateInCall(state) && (state != oldState)) {
312 ALOGV(" Switching between telephony and VoIP in setPhoneState()");
313 // force routing command to audio hardware when switching between telephony and VoIP
314 // even if no device change is needed
318 // check for device and output changes triggered by new phone state
319 newDevice = getNewDevice(mPrimaryOutput, false /*fromCache*/);
321 checkOutputForAllStrategies();
322 updateDevicesAndOutputs();
324 AudioOutputDescriptor *hwOutputDesc = mOutputs.valueFor(mPrimaryOutput);
326 // force routing command to audio hardware when ending call
327 // even if no device change is needed
328 if (isStateInCall(oldState) && newDevice == AUDIO_DEVICE_NONE) {
329 newDevice = hwOutputDesc->device();
332 // when changing from ring tone to in call mode, mute the ringing tone
333 // immediately and delay the route change to avoid sending the ring tone
334 // tail into the earpiece or headset.
336 if (isStateInCall(state) && oldState == AudioSystem::MODE_RINGTONE) {
337 // delay the device change command by twice the output latency to have some margin
338 // and be sure that audio buffers not yet affected by the mute are out when
339 // we actually apply the route change
340 delayMs = hwOutputDesc->mLatency*2;
341 setStreamMute(AudioSystem::RING, true, mPrimaryOutput);
344 if (isStateInCall(state)) {
345 for (size_t i = 0; i < mOutputs.size(); i++) {
346 AudioOutputDescriptor *desc = mOutputs.valueAt(i);
347 //take the biggest latency for all outputs
348 if (delayMs < desc->mLatency*2) {
349 delayMs = desc->mLatency*2;
351 //mute STRATEGY_MEDIA on all outputs
352 if (desc->strategyRefCount(STRATEGY_MEDIA) != 0) {
353 setStrategyMute(STRATEGY_MEDIA, true, mOutputs.keyAt(i));
354 setStrategyMute(STRATEGY_MEDIA, false, mOutputs.keyAt(i), MUTE_TIME_MS,
355 getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/));
360 // change routing is necessary
361 setOutputDevice(mPrimaryOutput, newDevice, force, delayMs);
363 // if entering in call state, handle special case of active streams
364 // pertaining to sonification strategy see handleIncallSonification()
365 if (isStateInCall(state)) {
366 ALOGV("setPhoneState() in call state management: new state is %d", state);
367 // unmute the ringing tone after a sufficient delay if it was muted before
368 // setting output device above
369 if (oldState == AudioSystem::MODE_RINGTONE) {
370 setStreamMute(AudioSystem::RING, false, mPrimaryOutput, MUTE_TIME_MS);
372 for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) {
373 handleIncallSonification(stream, true, true);
377 // Flag that ringtone volume must be limited to music volume until we exit MODE_RINGTONE
378 if (state == AudioSystem::MODE_RINGTONE &&
379 isStreamActive(AudioSystem::MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY)) {
380 mLimitRingtoneVolume = true;
382 mLimitRingtoneVolume = false;
386 void AudioPolicyManagerBase::setForceUse(AudioSystem::force_use usage, AudioSystem::forced_config config)
388 ALOGV("setForceUse() usage %d, config %d, mPhoneState %d", usage, config, mPhoneState);
390 bool forceVolumeReeval = false;
392 case AudioSystem::FOR_COMMUNICATION:
393 if (config != AudioSystem::FORCE_SPEAKER && config != AudioSystem::FORCE_BT_SCO &&
394 config != AudioSystem::FORCE_NONE) {
395 ALOGW("setForceUse() invalid config %d for FOR_COMMUNICATION", config);
398 forceVolumeReeval = true;
399 mForceUse[usage] = config;
401 case AudioSystem::FOR_MEDIA:
402 if (config != AudioSystem::FORCE_HEADPHONES && config != AudioSystem::FORCE_BT_A2DP &&
403 config != AudioSystem::FORCE_WIRED_ACCESSORY &&
404 config != AudioSystem::FORCE_ANALOG_DOCK &&
405 config != AudioSystem::FORCE_DIGITAL_DOCK && config != AudioSystem::FORCE_NONE &&
406 config != AudioSystem::FORCE_NO_BT_A2DP) {
407 ALOGW("setForceUse() invalid config %d for FOR_MEDIA", config);
410 mForceUse[usage] = config;
412 case AudioSystem::FOR_RECORD:
413 if (config != AudioSystem::FORCE_BT_SCO && config != AudioSystem::FORCE_WIRED_ACCESSORY &&
414 config != AudioSystem::FORCE_NONE) {
415 ALOGW("setForceUse() invalid config %d for FOR_RECORD", config);
418 mForceUse[usage] = config;
420 case AudioSystem::FOR_DOCK:
421 if (config != AudioSystem::FORCE_NONE && config != AudioSystem::FORCE_BT_CAR_DOCK &&
422 config != AudioSystem::FORCE_BT_DESK_DOCK &&
423 config != AudioSystem::FORCE_WIRED_ACCESSORY &&
424 config != AudioSystem::FORCE_ANALOG_DOCK &&
425 config != AudioSystem::FORCE_DIGITAL_DOCK) {
426 ALOGW("setForceUse() invalid config %d for FOR_DOCK", config);
428 forceVolumeReeval = true;
429 mForceUse[usage] = config;
431 case AudioSystem::FOR_SYSTEM:
432 if (config != AudioSystem::FORCE_NONE &&
433 config != AudioSystem::FORCE_SYSTEM_ENFORCED) {
434 ALOGW("setForceUse() invalid config %d for FOR_SYSTEM", config);
436 forceVolumeReeval = true;
437 mForceUse[usage] = config;
440 ALOGW("setForceUse() invalid usage %d", usage);
444 // check for device and output changes triggered by new force usage
446 checkOutputForAllStrategies();
447 updateDevicesAndOutputs();
448 for (size_t i = 0; i < mOutputs.size(); i++) {
449 audio_io_handle_t output = mOutputs.keyAt(i);
450 audio_devices_t newDevice = getNewDevice(output, true /*fromCache*/);
451 setOutputDevice(output, newDevice, (newDevice != AUDIO_DEVICE_NONE));
452 if (forceVolumeReeval && (newDevice != AUDIO_DEVICE_NONE)) {
453 applyStreamVolumes(output, newDevice, 0, true);
457 audio_io_handle_t activeInput = getActiveInput();
458 if (activeInput != 0) {
459 AudioInputDescriptor *inputDesc = mInputs.valueFor(activeInput);
460 audio_devices_t newDevice = getDeviceForInputSource(inputDesc->mInputSource);
461 if ((newDevice != AUDIO_DEVICE_NONE) && (newDevice != inputDesc->mDevice)) {
462 ALOGV("setForceUse() changing device from %x to %x for input %d",
463 inputDesc->mDevice, newDevice, activeInput);
464 inputDesc->mDevice = newDevice;
465 AudioParameter param = AudioParameter();
466 param.addInt(String8(AudioParameter::keyRouting), (int)newDevice);
467 mpClientInterface->setParameters(activeInput, param.toString());
473 AudioSystem::forced_config AudioPolicyManagerBase::getForceUse(AudioSystem::force_use usage)
475 return mForceUse[usage];
478 void AudioPolicyManagerBase::setSystemProperty(const char* property, const char* value)
480 ALOGV("setSystemProperty() property %s, value %s", property, value);
483 AudioPolicyManagerBase::IOProfile *AudioPolicyManagerBase::getProfileForDirectOutput(
484 audio_devices_t device,
485 uint32_t samplingRate,
487 uint32_t channelMask,
488 audio_output_flags_t flags)
490 for (size_t i = 0; i < mHwModules.size(); i++) {
491 if (mHwModules[i]->mHandle == 0) {
494 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) {
495 IOProfile *profile = mHwModules[i]->mOutputProfiles[j];
496 if (profile->isCompatibleProfile(device, samplingRate, format,
498 AUDIO_OUTPUT_FLAG_DIRECT)) {
499 if (mAvailableOutputDevices & profile->mSupportedDevices) {
500 return mHwModules[i]->mOutputProfiles[j];
508 audio_io_handle_t AudioPolicyManagerBase::getOutput(AudioSystem::stream_type stream,
509 uint32_t samplingRate,
511 uint32_t channelMask,
512 AudioSystem::output_flags flags)
514 audio_io_handle_t output = 0;
515 uint32_t latency = 0;
516 routing_strategy strategy = getStrategy((AudioSystem::stream_type)stream);
517 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/);
518 ALOGV("getOutput() stream %d, samplingRate %d, format %d, channelMask %x, flags %x",
519 stream, samplingRate, format, channelMask, flags);
521 #ifdef AUDIO_POLICY_TEST
522 if (mCurOutput != 0) {
523 ALOGV("getOutput() test output mCurOutput %d, samplingRate %d, format %d, channelMask %x, mDirectOutput %d",
524 mCurOutput, mTestSamplingRate, mTestFormat, mTestChannels, mDirectOutput);
526 if (mTestOutputs[mCurOutput] == 0) {
527 ALOGV("getOutput() opening test output");
528 AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor(NULL);
529 outputDesc->mDevice = mTestDevice;
530 outputDesc->mSamplingRate = mTestSamplingRate;
531 outputDesc->mFormat = mTestFormat;
532 outputDesc->mChannelMask = mTestChannels;
533 outputDesc->mLatency = mTestLatencyMs;
534 outputDesc->mFlags = (audio_output_flags_t)(mDirectOutput ? AudioSystem::OUTPUT_FLAG_DIRECT : 0);
535 outputDesc->mRefCount[stream] = 0;
536 mTestOutputs[mCurOutput] = mpClientInterface->openOutput(0, &outputDesc->mDevice,
537 &outputDesc->mSamplingRate,
538 &outputDesc->mFormat,
539 &outputDesc->mChannelMask,
540 &outputDesc->mLatency,
542 if (mTestOutputs[mCurOutput]) {
543 AudioParameter outputCmd = AudioParameter();
544 outputCmd.addInt(String8("set_id"),mCurOutput);
545 mpClientInterface->setParameters(mTestOutputs[mCurOutput],outputCmd.toString());
546 addOutput(mTestOutputs[mCurOutput], outputDesc);
549 return mTestOutputs[mCurOutput];
551 #endif //AUDIO_POLICY_TEST
553 // open a direct output if required by specified parameters
554 IOProfile *profile = getProfileForDirectOutput(device,
558 (audio_output_flags_t)flags);
559 if (profile != NULL) {
561 ALOGV("getOutput() opening direct output device %x", device);
563 AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor(profile);
564 outputDesc->mDevice = device;
565 outputDesc->mSamplingRate = samplingRate;
566 outputDesc->mFormat = (audio_format_t)format;
567 outputDesc->mChannelMask = (audio_channel_mask_t)channelMask;
568 outputDesc->mLatency = 0;
569 outputDesc->mFlags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT);;
570 outputDesc->mRefCount[stream] = 0;
571 outputDesc->mStopTime[stream] = 0;
572 output = mpClientInterface->openOutput(profile->mModule->mHandle,
573 &outputDesc->mDevice,
574 &outputDesc->mSamplingRate,
575 &outputDesc->mFormat,
576 &outputDesc->mChannelMask,
577 &outputDesc->mLatency,
580 // only accept an output with the requested parameters
582 (samplingRate != 0 && samplingRate != outputDesc->mSamplingRate) ||
583 (format != 0 && format != outputDesc->mFormat) ||
584 (channelMask != 0 && channelMask != outputDesc->mChannelMask)) {
585 ALOGV("getOutput() failed opening direct output: output %d samplingRate %d %d,"
586 "format %d %d, channelMask %04x %04x", output, samplingRate,
587 outputDesc->mSamplingRate, format, outputDesc->mFormat, channelMask,
588 outputDesc->mChannelMask);
590 mpClientInterface->closeOutput(output);
595 addOutput(output, outputDesc);
596 ALOGV("getOutput() returns direct output %d", output);
600 // ignoring channel mask due to downmix capability in mixer
602 // open a non direct output
604 // get which output is suitable for the specified stream. The actual routing change will happen
605 // when startOutput() will be called
606 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(device, mOutputs);
608 output = selectOutput(outputs, flags);
610 ALOGW_IF((output ==0), "getOutput() could not find output for stream %d, samplingRate %d,"
611 "format %d, channels %x, flags %x", stream, samplingRate, format, channelMask, flags);
613 ALOGV("getOutput() returns output %d", output);
618 audio_io_handle_t AudioPolicyManagerBase::selectOutput(const SortedVector<audio_io_handle_t>& outputs,
619 AudioSystem::output_flags flags)
621 // select one output among several that provide a path to a particular device or set of
622 // devices (the list was previously build by getOutputsForDevice()).
623 // The priority is as follows:
624 // 1: the output with the highest number of requested policy flags
625 // 2: the primary output
626 // 3: the first output in the list
628 if (outputs.size() == 0) {
631 if (outputs.size() == 1) {
635 int maxCommonFlags = 0;
636 audio_io_handle_t outputFlags = 0;
637 audio_io_handle_t outputPrimary = 0;
639 for (size_t i = 0; i < outputs.size(); i++) {
640 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(outputs[i]);
641 if (!outputDesc->isDuplicated()) {
642 int commonFlags = (int)AudioSystem::popCount(outputDesc->mProfile->mFlags & flags);
643 if (commonFlags > maxCommonFlags) {
644 outputFlags = outputs[i];
645 maxCommonFlags = commonFlags;
646 ALOGV("selectOutput() commonFlags for output %d, %04x", outputs[i], commonFlags);
648 if (outputDesc->mProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) {
649 outputPrimary = outputs[i];
654 if (outputFlags != 0) {
657 if (outputPrimary != 0) {
658 return outputPrimary;
664 status_t AudioPolicyManagerBase::startOutput(audio_io_handle_t output,
665 AudioSystem::stream_type stream,
668 ALOGV("startOutput() output %d, stream %d, session %d", output, stream, session);
669 ssize_t index = mOutputs.indexOfKey(output);
671 ALOGW("startOutput() unknow output %d", output);
675 AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index);
677 // increment usage count for this stream on the requested output:
678 // NOTE that the usage count is the same for duplicated output and hardware output which is
679 // necessary for a correct control of hardware output routing by startOutput() and stopOutput()
680 outputDesc->changeRefCount(stream, 1);
682 if (outputDesc->mRefCount[stream] == 1) {
683 audio_devices_t newDevice = getNewDevice(output, false /*fromCache*/);
684 routing_strategy strategy = getStrategy(stream);
685 bool shouldWait = (strategy == STRATEGY_SONIFICATION) ||
686 (strategy == STRATEGY_SONIFICATION_RESPECTFUL);
689 for (size_t i = 0; i < mOutputs.size(); i++) {
690 AudioOutputDescriptor *desc = mOutputs.valueAt(i);
691 if (desc != outputDesc) {
692 // force a device change if any other output is managed by the same hw
693 // module and has a current device selection that differs from selected device.
694 // In this case, the audio HAL must receive the new device selection so that it can
695 // change the device currently selected by the other active output.
696 if (outputDesc->sharesHwModuleWith(desc) &&
697 desc->device() != newDevice) {
700 // wait for audio on other active outputs to be presented when starting
701 // a notification so that audio focus effect can propagate.
702 if (shouldWait && (desc->refCount() != 0) && (waitMs < desc->latency())) {
703 waitMs = desc->latency();
707 uint32_t muteWaitMs = setOutputDevice(output, newDevice, force);
709 // handle special case for sonification while in call
711 handleIncallSonification(stream, true, false);
714 // apply volume rules for current stream and device if necessary
715 checkAndSetVolume(stream,
716 mStreams[stream].getVolumeIndex(newDevice),
720 // update the outputs if starting an output with a stream that can affect notification
722 handleNotificationRoutingForStream(stream);
723 if (waitMs > muteWaitMs) {
724 usleep((waitMs - muteWaitMs) * 2 * 1000);
731 status_t AudioPolicyManagerBase::stopOutput(audio_io_handle_t output,
732 AudioSystem::stream_type stream,
735 ALOGV("stopOutput() output %d, stream %d, session %d", output, stream, session);
736 ssize_t index = mOutputs.indexOfKey(output);
738 ALOGW("stopOutput() unknow output %d", output);
742 AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index);
744 // handle special case for sonification while in call
746 handleIncallSonification(stream, false, false);
749 if (outputDesc->mRefCount[stream] > 0) {
750 // decrement usage count of this stream on the output
751 outputDesc->changeRefCount(stream, -1);
752 // store time at which the stream was stopped - see isStreamActive()
753 if (outputDesc->mRefCount[stream] == 0) {
754 outputDesc->mStopTime[stream] = systemTime();
755 audio_devices_t newDevice = getNewDevice(output, false /*fromCache*/);
756 // delay the device switch by twice the latency because stopOutput() is executed when
757 // the track stop() command is received and at that time the audio track buffer can
758 // still contain data that needs to be drained. The latency only covers the audio HAL
759 // and kernel buffers. Also the latency does not always include additional delay in the
760 // audio path (audio DSP, CODEC ...)
761 setOutputDevice(output, newDevice, false, outputDesc->mLatency*2);
763 // force restoring the device selection on other active outputs if it differs from the
764 // one being selected for this output
765 for (size_t i = 0; i < mOutputs.size(); i++) {
766 audio_io_handle_t curOutput = mOutputs.keyAt(i);
767 AudioOutputDescriptor *desc = mOutputs.valueAt(i);
768 if (curOutput != output &&
769 desc->refCount() != 0 &&
770 outputDesc->sharesHwModuleWith(desc) &&
771 newDevice != desc->device()) {
772 setOutputDevice(curOutput,
773 getNewDevice(curOutput, false /*fromCache*/),
775 outputDesc->mLatency*2);
778 // update the outputs if stopping one with a stream that can affect notification routing
779 handleNotificationRoutingForStream(stream);
783 ALOGW("stopOutput() refcount is already 0 for output %d", output);
784 return INVALID_OPERATION;
788 void AudioPolicyManagerBase::releaseOutput(audio_io_handle_t output)
790 ALOGV("releaseOutput() %d", output);
791 ssize_t index = mOutputs.indexOfKey(output);
793 ALOGW("releaseOutput() releasing unknown output %d", output);
797 #ifdef AUDIO_POLICY_TEST
798 int testIndex = testOutputIndex(output);
799 if (testIndex != 0) {
800 AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index);
801 if (outputDesc->refCount() == 0) {
802 mpClientInterface->closeOutput(output);
803 delete mOutputs.valueAt(index);
804 mOutputs.removeItem(output);
805 mTestOutputs[testIndex] = 0;
809 #endif //AUDIO_POLICY_TEST
811 if (mOutputs.valueAt(index)->mFlags & AudioSystem::OUTPUT_FLAG_DIRECT) {
812 mpClientInterface->closeOutput(output);
813 delete mOutputs.valueAt(index);
814 mOutputs.removeItem(output);
815 mPreviousOutputs = mOutputs;
820 audio_io_handle_t AudioPolicyManagerBase::getInput(int inputSource,
821 uint32_t samplingRate,
823 uint32_t channelMask,
824 AudioSystem::audio_in_acoustics acoustics)
826 audio_io_handle_t input = 0;
827 audio_devices_t device = getDeviceForInputSource(inputSource);
829 ALOGV("getInput() inputSource %d, samplingRate %d, format %d, channelMask %x, acoustics %x",
830 inputSource, samplingRate, format, channelMask, acoustics);
832 if (device == AUDIO_DEVICE_NONE) {
833 ALOGW("getInput() could not find device for inputSource %d", inputSource);
837 // adapt channel selection to input source
838 switch(inputSource) {
839 case AUDIO_SOURCE_VOICE_UPLINK:
840 channelMask = AudioSystem::CHANNEL_IN_VOICE_UPLINK;
842 case AUDIO_SOURCE_VOICE_DOWNLINK:
843 channelMask = AudioSystem::CHANNEL_IN_VOICE_DNLINK;
845 case AUDIO_SOURCE_VOICE_CALL:
846 channelMask = (AudioSystem::CHANNEL_IN_VOICE_UPLINK | AudioSystem::CHANNEL_IN_VOICE_DNLINK);
852 IOProfile *profile = getInputProfile(device,
856 if (profile == NULL) {
857 ALOGW("getInput() could not find profile for device %04x, samplingRate %d, format %d,"
859 device, samplingRate, format, channelMask);
863 if (profile->mModule->mHandle == 0) {
864 ALOGE("getInput(): HW module %s not opened", profile->mModule->mName);
868 AudioInputDescriptor *inputDesc = new AudioInputDescriptor(profile);
870 inputDesc->mInputSource = inputSource;
871 inputDesc->mDevice = device;
872 inputDesc->mSamplingRate = samplingRate;
873 inputDesc->mFormat = (audio_format_t)format;
874 inputDesc->mChannelMask = (audio_channel_mask_t)channelMask;
875 inputDesc->mRefCount = 0;
876 input = mpClientInterface->openInput(profile->mModule->mHandle,
878 &inputDesc->mSamplingRate,
880 &inputDesc->mChannelMask);
882 // only accept input with the exact requested set of parameters
884 (samplingRate != inputDesc->mSamplingRate) ||
885 (format != inputDesc->mFormat) ||
886 (channelMask != inputDesc->mChannelMask)) {
887 ALOGV("getInput() failed opening input: samplingRate %d, format %d, channelMask %d",
888 samplingRate, format, channelMask);
890 mpClientInterface->closeInput(input);
895 mInputs.add(input, inputDesc);
899 status_t AudioPolicyManagerBase::startInput(audio_io_handle_t input)
901 ALOGV("startInput() input %d", input);
902 ssize_t index = mInputs.indexOfKey(input);
904 ALOGW("startInput() unknow input %d", input);
907 AudioInputDescriptor *inputDesc = mInputs.valueAt(index);
909 #ifdef AUDIO_POLICY_TEST
911 #endif //AUDIO_POLICY_TEST
913 // refuse 2 active AudioRecord clients at the same time
914 if (getActiveInput() != 0) {
915 ALOGW("startInput() input %d failed: other input already started", input);
916 return INVALID_OPERATION;
920 AudioParameter param = AudioParameter();
921 param.addInt(String8(AudioParameter::keyRouting), (int)inputDesc->mDevice);
923 param.addInt(String8(AudioParameter::keyInputSource), (int)inputDesc->mInputSource);
924 ALOGV("AudioPolicyManager::startInput() input source = %d", inputDesc->mInputSource);
926 mpClientInterface->setParameters(input, param.toString());
928 inputDesc->mRefCount = 1;
932 status_t AudioPolicyManagerBase::stopInput(audio_io_handle_t input)
934 ALOGV("stopInput() input %d", input);
935 ssize_t index = mInputs.indexOfKey(input);
937 ALOGW("stopInput() unknow input %d", input);
940 AudioInputDescriptor *inputDesc = mInputs.valueAt(index);
942 if (inputDesc->mRefCount == 0) {
943 ALOGW("stopInput() input %d already stopped", input);
944 return INVALID_OPERATION;
946 AudioParameter param = AudioParameter();
947 param.addInt(String8(AudioParameter::keyRouting), 0);
948 mpClientInterface->setParameters(input, param.toString());
949 inputDesc->mRefCount = 0;
954 void AudioPolicyManagerBase::releaseInput(audio_io_handle_t input)
956 ALOGV("releaseInput() %d", input);
957 ssize_t index = mInputs.indexOfKey(input);
959 ALOGW("releaseInput() releasing unknown input %d", input);
962 mpClientInterface->closeInput(input);
963 delete mInputs.valueAt(index);
964 mInputs.removeItem(input);
965 ALOGV("releaseInput() exit");
968 void AudioPolicyManagerBase::initStreamVolume(AudioSystem::stream_type stream,
972 ALOGV("initStreamVolume() stream %d, min %d, max %d", stream , indexMin, indexMax);
973 if (indexMin < 0 || indexMin >= indexMax) {
974 ALOGW("initStreamVolume() invalid index limits for stream %d, min %d, max %d", stream , indexMin, indexMax);
977 mStreams[stream].mIndexMin = indexMin;
978 mStreams[stream].mIndexMax = indexMax;
981 status_t AudioPolicyManagerBase::setStreamVolumeIndex(AudioSystem::stream_type stream,
983 audio_devices_t device)
986 if ((index < mStreams[stream].mIndexMin) || (index > mStreams[stream].mIndexMax)) {
989 if (!audio_is_output_device(device)) {
993 // Force max volume if stream cannot be muted
994 if (!mStreams[stream].mCanBeMuted) index = mStreams[stream].mIndexMax;
996 ALOGV("setStreamVolumeIndex() stream %d, device %04x, index %d",
997 stream, device, index);
999 // if device is AUDIO_DEVICE_OUT_DEFAULT set default value and
1000 // clear all device specific values
1001 if (device == AUDIO_DEVICE_OUT_DEFAULT) {
1002 mStreams[stream].mIndexCur.clear();
1004 mStreams[stream].mIndexCur.add(device, index);
1006 // compute and apply stream volume on all outputs according to connected device
1007 status_t status = NO_ERROR;
1008 for (size_t i = 0; i < mOutputs.size(); i++) {
1009 audio_devices_t curDevice =
1010 getDeviceForVolume(mOutputs.valueAt(i)->device());
1011 if (device == curDevice) {
1012 status_t volStatus = checkAndSetVolume(stream, index, mOutputs.keyAt(i), curDevice);
1013 if (volStatus != NO_ERROR) {
1021 status_t AudioPolicyManagerBase::getStreamVolumeIndex(AudioSystem::stream_type stream,
1023 audio_devices_t device)
1025 if (index == NULL) {
1028 if (!audio_is_output_device(device)) {
1031 // if device is AUDIO_DEVICE_OUT_DEFAULT, return volume for device corresponding to
1032 // the strategy the stream belongs to.
1033 if (device == AUDIO_DEVICE_OUT_DEFAULT) {
1034 device = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/);
1036 device = getDeviceForVolume(device);
1038 *index = mStreams[stream].getVolumeIndex(device);
1039 ALOGV("getStreamVolumeIndex() stream %d device %08x index %d", stream, device, *index);
1043 audio_io_handle_t AudioPolicyManagerBase::getOutputForEffect(const effect_descriptor_t *desc)
1045 ALOGV("getOutputForEffect()");
1046 // apply simple rule where global effects are attached to the same output as MUSIC streams
1048 routing_strategy strategy = getStrategy(AudioSystem::MUSIC);
1049 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/);
1050 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(device, mOutputs);
1052 for (size_t i = 0; i < dstOutputs.size(); i++) {
1053 AudioOutputDescriptor *desc = mOutputs.valueFor(dstOutputs[i]);
1054 if (desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) {
1058 return dstOutputs[outIdx];
1061 status_t AudioPolicyManagerBase::registerEffect(const effect_descriptor_t *desc,
1062 audio_io_handle_t io,
1067 ssize_t index = mOutputs.indexOfKey(io);
1069 index = mInputs.indexOfKey(io);
1071 ALOGW("registerEffect() unknown io %d", io);
1072 return INVALID_OPERATION;
1076 if (mTotalEffectsMemory + desc->memoryUsage > getMaxEffectsMemory()) {
1077 ALOGW("registerEffect() memory limit exceeded for Fx %s, Memory %d KB",
1078 desc->name, desc->memoryUsage);
1079 return INVALID_OPERATION;
1081 mTotalEffectsMemory += desc->memoryUsage;
1082 ALOGV("registerEffect() effect %s, io %d, strategy %d session %d id %d",
1083 desc->name, io, strategy, session, id);
1084 ALOGV("registerEffect() memory %d, total memory %d", desc->memoryUsage, mTotalEffectsMemory);
1086 EffectDescriptor *pDesc = new EffectDescriptor();
1087 memcpy (&pDesc->mDesc, desc, sizeof(effect_descriptor_t));
1089 pDesc->mStrategy = (routing_strategy)strategy;
1090 pDesc->mSession = session;
1091 pDesc->mEnabled = false;
1093 mEffects.add(id, pDesc);
1098 status_t AudioPolicyManagerBase::unregisterEffect(int id)
1100 ssize_t index = mEffects.indexOfKey(id);
1102 ALOGW("unregisterEffect() unknown effect ID %d", id);
1103 return INVALID_OPERATION;
1106 EffectDescriptor *pDesc = mEffects.valueAt(index);
1108 setEffectEnabled(pDesc, false);
1110 if (mTotalEffectsMemory < pDesc->mDesc.memoryUsage) {
1111 ALOGW("unregisterEffect() memory %d too big for total %d",
1112 pDesc->mDesc.memoryUsage, mTotalEffectsMemory);
1113 pDesc->mDesc.memoryUsage = mTotalEffectsMemory;
1115 mTotalEffectsMemory -= pDesc->mDesc.memoryUsage;
1116 ALOGV("unregisterEffect() effect %s, ID %d, memory %d total memory %d",
1117 pDesc->mDesc.name, id, pDesc->mDesc.memoryUsage, mTotalEffectsMemory);
1119 mEffects.removeItem(id);
1125 status_t AudioPolicyManagerBase::setEffectEnabled(int id, bool enabled)
1127 ssize_t index = mEffects.indexOfKey(id);
1129 ALOGW("unregisterEffect() unknown effect ID %d", id);
1130 return INVALID_OPERATION;
1133 return setEffectEnabled(mEffects.valueAt(index), enabled);
1136 status_t AudioPolicyManagerBase::setEffectEnabled(EffectDescriptor *pDesc, bool enabled)
1138 if (enabled == pDesc->mEnabled) {
1139 ALOGV("setEffectEnabled(%s) effect already %s",
1140 enabled?"true":"false", enabled?"enabled":"disabled");
1141 return INVALID_OPERATION;
1145 if (mTotalEffectsCpuLoad + pDesc->mDesc.cpuLoad > getMaxEffectsCpuLoad()) {
1146 ALOGW("setEffectEnabled(true) CPU Load limit exceeded for Fx %s, CPU %f MIPS",
1147 pDesc->mDesc.name, (float)pDesc->mDesc.cpuLoad/10);
1148 return INVALID_OPERATION;
1150 mTotalEffectsCpuLoad += pDesc->mDesc.cpuLoad;
1151 ALOGV("setEffectEnabled(true) total CPU %d", mTotalEffectsCpuLoad);
1153 if (mTotalEffectsCpuLoad < pDesc->mDesc.cpuLoad) {
1154 ALOGW("setEffectEnabled(false) CPU load %d too high for total %d",
1155 pDesc->mDesc.cpuLoad, mTotalEffectsCpuLoad);
1156 pDesc->mDesc.cpuLoad = mTotalEffectsCpuLoad;
1158 mTotalEffectsCpuLoad -= pDesc->mDesc.cpuLoad;
1159 ALOGV("setEffectEnabled(false) total CPU %d", mTotalEffectsCpuLoad);
1161 pDesc->mEnabled = enabled;
1165 bool AudioPolicyManagerBase::isStreamActive(int stream, uint32_t inPastMs) const
1167 nsecs_t sysTime = systemTime();
1168 for (size_t i = 0; i < mOutputs.size(); i++) {
1169 if (mOutputs.valueAt(i)->mRefCount[stream] != 0 ||
1170 ns2ms(sysTime - mOutputs.valueAt(i)->mStopTime[stream]) < inPastMs) {
1177 bool AudioPolicyManagerBase::isSourceActive(audio_source_t source) const
1179 for (size_t i = 0; i < mInputs.size(); i++) {
1180 const AudioInputDescriptor * inputDescriptor = mInputs.valueAt(i);
1181 if ((inputDescriptor->mInputSource == (int) source)
1182 && (inputDescriptor->mRefCount > 0)) {
1191 status_t AudioPolicyManagerBase::dump(int fd)
1193 const size_t SIZE = 256;
1197 snprintf(buffer, SIZE, "\nAudioPolicyManager Dump: %p\n", this);
1198 result.append(buffer);
1200 snprintf(buffer, SIZE, " Primary Output: %d\n", mPrimaryOutput);
1201 result.append(buffer);
1202 snprintf(buffer, SIZE, " A2DP device address: %s\n", mA2dpDeviceAddress.string());
1203 result.append(buffer);
1204 snprintf(buffer, SIZE, " SCO device address: %s\n", mScoDeviceAddress.string());
1205 result.append(buffer);
1206 snprintf(buffer, SIZE, " USB audio ALSA %s\n", mUsbCardAndDevice.string());
1207 result.append(buffer);
1208 snprintf(buffer, SIZE, " Output devices: %08x\n", mAvailableOutputDevices);
1209 result.append(buffer);
1210 snprintf(buffer, SIZE, " Input devices: %08x\n", mAvailableInputDevices);
1211 result.append(buffer);
1212 snprintf(buffer, SIZE, " Phone state: %d\n", mPhoneState);
1213 result.append(buffer);
1214 snprintf(buffer, SIZE, " Force use for communications %d\n", mForceUse[AudioSystem::FOR_COMMUNICATION]);
1215 result.append(buffer);
1216 snprintf(buffer, SIZE, " Force use for media %d\n", mForceUse[AudioSystem::FOR_MEDIA]);
1217 result.append(buffer);
1218 snprintf(buffer, SIZE, " Force use for record %d\n", mForceUse[AudioSystem::FOR_RECORD]);
1219 result.append(buffer);
1220 snprintf(buffer, SIZE, " Force use for dock %d\n", mForceUse[AudioSystem::FOR_DOCK]);
1221 result.append(buffer);
1222 snprintf(buffer, SIZE, " Force use for system %d\n", mForceUse[AudioSystem::FOR_SYSTEM]);
1223 result.append(buffer);
1224 write(fd, result.string(), result.size());
1227 snprintf(buffer, SIZE, "\nHW Modules dump:\n");
1228 write(fd, buffer, strlen(buffer));
1229 for (size_t i = 0; i < mHwModules.size(); i++) {
1230 snprintf(buffer, SIZE, "- HW Module %d:\n", i + 1);
1231 write(fd, buffer, strlen(buffer));
1232 mHwModules[i]->dump(fd);
1235 snprintf(buffer, SIZE, "\nOutputs dump:\n");
1236 write(fd, buffer, strlen(buffer));
1237 for (size_t i = 0; i < mOutputs.size(); i++) {
1238 snprintf(buffer, SIZE, "- Output %d dump:\n", mOutputs.keyAt(i));
1239 write(fd, buffer, strlen(buffer));
1240 mOutputs.valueAt(i)->dump(fd);
1243 snprintf(buffer, SIZE, "\nInputs dump:\n");
1244 write(fd, buffer, strlen(buffer));
1245 for (size_t i = 0; i < mInputs.size(); i++) {
1246 snprintf(buffer, SIZE, "- Input %d dump:\n", mInputs.keyAt(i));
1247 write(fd, buffer, strlen(buffer));
1248 mInputs.valueAt(i)->dump(fd);
1251 snprintf(buffer, SIZE, "\nStreams dump:\n");
1252 write(fd, buffer, strlen(buffer));
1253 snprintf(buffer, SIZE,
1254 " Stream Can be muted Index Min Index Max Index Cur [device : index]...\n");
1255 write(fd, buffer, strlen(buffer));
1256 for (size_t i = 0; i < AudioSystem::NUM_STREAM_TYPES; i++) {
1257 snprintf(buffer, SIZE, " %02d ", i);
1258 write(fd, buffer, strlen(buffer));
1259 mStreams[i].dump(fd);
1262 snprintf(buffer, SIZE, "\nTotal Effects CPU: %f MIPS, Total Effects memory: %d KB\n",
1263 (float)mTotalEffectsCpuLoad/10, mTotalEffectsMemory);
1264 write(fd, buffer, strlen(buffer));
1266 snprintf(buffer, SIZE, "Registered effects:\n");
1267 write(fd, buffer, strlen(buffer));
1268 for (size_t i = 0; i < mEffects.size(); i++) {
1269 snprintf(buffer, SIZE, "- Effect %d dump:\n", mEffects.keyAt(i));
1270 write(fd, buffer, strlen(buffer));
1271 mEffects.valueAt(i)->dump(fd);
1278 // ----------------------------------------------------------------------------
1279 // AudioPolicyManagerBase
1280 // ----------------------------------------------------------------------------
1282 AudioPolicyManagerBase::AudioPolicyManagerBase(AudioPolicyClientInterface *clientInterface)
1284 #ifdef AUDIO_POLICY_TEST
1286 #endif //AUDIO_POLICY_TEST
1287 mPrimaryOutput((audio_io_handle_t)0),
1288 mAvailableOutputDevices(AUDIO_DEVICE_NONE),
1289 mPhoneState(AudioSystem::MODE_NORMAL),
1290 mLimitRingtoneVolume(false), mLastVoiceVolume(-1.0f),
1291 mTotalEffectsCpuLoad(0), mTotalEffectsMemory(0),
1292 mA2dpSuspended(false), mHasA2dp(false), mHasUsb(false), mHasRemoteSubmix(false)
1294 mpClientInterface = clientInterface;
1296 for (int i = 0; i < AudioSystem::NUM_FORCE_USE; i++) {
1297 mForceUse[i] = AudioSystem::FORCE_NONE;
1300 initializeVolumeCurves();
1302 mA2dpDeviceAddress = String8("");
1303 mScoDeviceAddress = String8("");
1304 mUsbCardAndDevice = String8("");
1306 if (loadAudioPolicyConfig(AUDIO_POLICY_VENDOR_CONFIG_FILE) != NO_ERROR) {
1307 if (loadAudioPolicyConfig(AUDIO_POLICY_CONFIG_FILE) != NO_ERROR) {
1308 ALOGE("could not load audio policy configuration file, setting defaults");
1309 defaultAudioPolicyConfig();
1313 // open all output streams needed to access attached devices
1314 for (size_t i = 0; i < mHwModules.size(); i++) {
1315 mHwModules[i]->mHandle = mpClientInterface->loadHwModule(mHwModules[i]->mName);
1316 if (mHwModules[i]->mHandle == 0) {
1317 ALOGW("could not open HW module %s", mHwModules[i]->mName);
1320 // open all output streams needed to access attached devices
1321 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++)
1323 const IOProfile *outProfile = mHwModules[i]->mOutputProfiles[j];
1325 if (outProfile->mSupportedDevices & mAttachedOutputDevices) {
1326 AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor(outProfile);
1327 outputDesc->mDevice = (audio_devices_t)(mDefaultOutputDevice &
1328 outProfile->mSupportedDevices);
1329 audio_io_handle_t output = mpClientInterface->openOutput(
1330 outProfile->mModule->mHandle,
1331 &outputDesc->mDevice,
1332 &outputDesc->mSamplingRate,
1333 &outputDesc->mFormat,
1334 &outputDesc->mChannelMask,
1335 &outputDesc->mLatency,
1336 outputDesc->mFlags);
1340 mAvailableOutputDevices = (audio_devices_t)(mAvailableOutputDevices |
1341 (outProfile->mSupportedDevices & mAttachedOutputDevices));
1342 if (mPrimaryOutput == 0 &&
1343 outProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) {
1344 mPrimaryOutput = output;
1346 addOutput(output, outputDesc);
1347 setOutputDevice(output,
1348 (audio_devices_t)(mDefaultOutputDevice &
1349 outProfile->mSupportedDevices),
1356 ALOGE_IF((mAttachedOutputDevices & ~mAvailableOutputDevices),
1357 "Not output found for attached devices %08x",
1358 (mAttachedOutputDevices & ~mAvailableOutputDevices));
1360 ALOGE_IF((mPrimaryOutput == 0), "Failed to open primary output");
1362 updateDevicesAndOutputs();
1364 #ifdef AUDIO_POLICY_TEST
1365 if (mPrimaryOutput != 0) {
1366 AudioParameter outputCmd = AudioParameter();
1367 outputCmd.addInt(String8("set_id"), 0);
1368 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString());
1370 mTestDevice = AUDIO_DEVICE_OUT_SPEAKER;
1371 mTestSamplingRate = 44100;
1372 mTestFormat = AudioSystem::PCM_16_BIT;
1373 mTestChannels = AudioSystem::CHANNEL_OUT_STEREO;
1376 mDirectOutput = false;
1377 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) {
1378 mTestOutputs[i] = 0;
1381 const size_t SIZE = 256;
1383 snprintf(buffer, SIZE, "AudioPolicyManagerTest");
1384 run(buffer, ANDROID_PRIORITY_AUDIO);
1386 #endif //AUDIO_POLICY_TEST
1389 AudioPolicyManagerBase::~AudioPolicyManagerBase()
1391 #ifdef AUDIO_POLICY_TEST
1393 #endif //AUDIO_POLICY_TEST
1394 for (size_t i = 0; i < mOutputs.size(); i++) {
1395 mpClientInterface->closeOutput(mOutputs.keyAt(i));
1396 delete mOutputs.valueAt(i);
1398 for (size_t i = 0; i < mInputs.size(); i++) {
1399 mpClientInterface->closeInput(mInputs.keyAt(i));
1400 delete mInputs.valueAt(i);
1402 for (size_t i = 0; i < mHwModules.size(); i++) {
1403 delete mHwModules[i];
1407 status_t AudioPolicyManagerBase::initCheck()
1409 return (mPrimaryOutput == 0) ? NO_INIT : NO_ERROR;
1412 #ifdef AUDIO_POLICY_TEST
1413 bool AudioPolicyManagerBase::threadLoop()
1415 ALOGV("entering threadLoop()");
1416 while (!exitPending())
1422 Mutex::Autolock _l(mLock);
1423 mWaitWorkCV.waitRelative(mLock, milliseconds(50));
1425 command = mpClientInterface->getParameters(0, String8("test_cmd_policy"));
1426 AudioParameter param = AudioParameter(command);
1428 if (param.getInt(String8("test_cmd_policy"), valueInt) == NO_ERROR &&
1430 ALOGV("Test command %s received", command.string());
1432 if (param.get(String8("target"), target) != NO_ERROR) {
1435 if (param.getInt(String8("test_cmd_policy_output"), valueInt) == NO_ERROR) {
1436 param.remove(String8("test_cmd_policy_output"));
1437 mCurOutput = valueInt;
1439 if (param.get(String8("test_cmd_policy_direct"), value) == NO_ERROR) {
1440 param.remove(String8("test_cmd_policy_direct"));
1441 if (value == "false") {
1442 mDirectOutput = false;
1443 } else if (value == "true") {
1444 mDirectOutput = true;
1447 if (param.getInt(String8("test_cmd_policy_input"), valueInt) == NO_ERROR) {
1448 param.remove(String8("test_cmd_policy_input"));
1449 mTestInput = valueInt;
1452 if (param.get(String8("test_cmd_policy_format"), value) == NO_ERROR) {
1453 param.remove(String8("test_cmd_policy_format"));
1454 int format = AudioSystem::INVALID_FORMAT;
1455 if (value == "PCM 16 bits") {
1456 format = AudioSystem::PCM_16_BIT;
1457 } else if (value == "PCM 8 bits") {
1458 format = AudioSystem::PCM_8_BIT;
1459 } else if (value == "Compressed MP3") {
1460 format = AudioSystem::MP3;
1462 if (format != AudioSystem::INVALID_FORMAT) {
1463 if (target == "Manager") {
1464 mTestFormat = format;
1465 } else if (mTestOutputs[mCurOutput] != 0) {
1466 AudioParameter outputParam = AudioParameter();
1467 outputParam.addInt(String8("format"), format);
1468 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString());
1472 if (param.get(String8("test_cmd_policy_channels"), value) == NO_ERROR) {
1473 param.remove(String8("test_cmd_policy_channels"));
1476 if (value == "Channels Stereo") {
1477 channels = AudioSystem::CHANNEL_OUT_STEREO;
1478 } else if (value == "Channels Mono") {
1479 channels = AudioSystem::CHANNEL_OUT_MONO;
1481 if (channels != 0) {
1482 if (target == "Manager") {
1483 mTestChannels = channels;
1484 } else if (mTestOutputs[mCurOutput] != 0) {
1485 AudioParameter outputParam = AudioParameter();
1486 outputParam.addInt(String8("channels"), channels);
1487 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString());
1491 if (param.getInt(String8("test_cmd_policy_sampleRate"), valueInt) == NO_ERROR) {
1492 param.remove(String8("test_cmd_policy_sampleRate"));
1493 if (valueInt >= 0 && valueInt <= 96000) {
1494 int samplingRate = valueInt;
1495 if (target == "Manager") {
1496 mTestSamplingRate = samplingRate;
1497 } else if (mTestOutputs[mCurOutput] != 0) {
1498 AudioParameter outputParam = AudioParameter();
1499 outputParam.addInt(String8("sampling_rate"), samplingRate);
1500 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString());
1505 if (param.get(String8("test_cmd_policy_reopen"), value) == NO_ERROR) {
1506 param.remove(String8("test_cmd_policy_reopen"));
1508 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(mPrimaryOutput);
1509 mpClientInterface->closeOutput(mPrimaryOutput);
1511 audio_module_handle_t moduleHandle = outputDesc->mModule->mHandle;
1513 delete mOutputs.valueFor(mPrimaryOutput);
1514 mOutputs.removeItem(mPrimaryOutput);
1516 AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor(NULL);
1517 outputDesc->mDevice = AUDIO_DEVICE_OUT_SPEAKER;
1518 mPrimaryOutput = mpClientInterface->openOutput(moduleHandle,
1519 &outputDesc->mDevice,
1520 &outputDesc->mSamplingRate,
1521 &outputDesc->mFormat,
1522 &outputDesc->mChannelMask,
1523 &outputDesc->mLatency,
1524 outputDesc->mFlags);
1525 if (mPrimaryOutput == 0) {
1526 ALOGE("Failed to reopen hardware output stream, samplingRate: %d, format %d, channels %d",
1527 outputDesc->mSamplingRate, outputDesc->mFormat, outputDesc->mChannelMask);
1529 AudioParameter outputCmd = AudioParameter();
1530 outputCmd.addInt(String8("set_id"), 0);
1531 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString());
1532 addOutput(mPrimaryOutput, outputDesc);
1537 mpClientInterface->setParameters(0, String8("test_cmd_policy="));
1543 void AudioPolicyManagerBase::exit()
1546 AutoMutex _l(mLock);
1548 mWaitWorkCV.signal();
1550 requestExitAndWait();
1553 int AudioPolicyManagerBase::testOutputIndex(audio_io_handle_t output)
1555 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) {
1556 if (output == mTestOutputs[i]) return i;
1560 #endif //AUDIO_POLICY_TEST
1564 void AudioPolicyManagerBase::addOutput(audio_io_handle_t id, AudioOutputDescriptor *outputDesc)
1566 outputDesc->mId = id;
1567 mOutputs.add(id, outputDesc);
1571 status_t AudioPolicyManagerBase::checkOutputsForDevice(audio_devices_t device,
1572 AudioSystem::device_connection_state state,
1573 SortedVector<audio_io_handle_t>& outputs)
1575 AudioOutputDescriptor *desc;
1577 if (state == AudioSystem::DEVICE_STATE_AVAILABLE) {
1578 // first list already open outputs that can be routed to this device
1579 for (size_t i = 0; i < mOutputs.size(); i++) {
1580 desc = mOutputs.valueAt(i);
1581 if (!desc->isDuplicated() && (desc->mProfile->mSupportedDevices & device)) {
1582 ALOGV("checkOutputsForDevice(): adding opened output %d", mOutputs.keyAt(i));
1583 outputs.add(mOutputs.keyAt(i));
1586 // then look for output profiles that can be routed to this device
1587 SortedVector<IOProfile *> profiles;
1588 for (size_t i = 0; i < mHwModules.size(); i++)
1590 if (mHwModules[i]->mHandle == 0) {
1593 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++)
1595 if (mHwModules[i]->mOutputProfiles[j]->mSupportedDevices & device) {
1596 ALOGV("checkOutputsForDevice(): adding profile %d from module %d", j, i);
1597 profiles.add(mHwModules[i]->mOutputProfiles[j]);
1602 if (profiles.isEmpty() && outputs.isEmpty()) {
1603 ALOGW("checkOutputsForDevice(): No output available for device %04x", device);
1607 // open outputs for matching profiles if needed. Direct outputs are also opened to
1608 // query for dynamic parameters and will be closed later by setDeviceConnectionState()
1609 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) {
1610 IOProfile *profile = profiles[profile_index];
1612 // nothing to do if one output is already opened for this profile
1614 for (j = 0; j < mOutputs.size(); j++) {
1615 desc = mOutputs.valueAt(j);
1616 if (!desc->isDuplicated() && desc->mProfile == profile) {
1620 if (j != mOutputs.size()) {
1624 ALOGV("opening output for device %08x", device);
1625 desc = new AudioOutputDescriptor(profile);
1626 desc->mDevice = device;
1627 audio_io_handle_t output = mpClientInterface->openOutput(profile->mModule->mHandle,
1629 &desc->mSamplingRate,
1631 &desc->mChannelMask,
1635 if (desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) {
1638 if (profile->mSamplingRates[0] == 0) {
1639 reply = mpClientInterface->getParameters(output,
1640 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES));
1641 ALOGV("checkOutputsForDevice() direct output sup sampling rates %s",
1643 value = strpbrk((char *)reply.string(), "=");
1644 if (value != NULL) {
1645 loadSamplingRates(value + 1, profile);
1648 if (profile->mFormats[0] == 0) {
1649 reply = mpClientInterface->getParameters(output,
1650 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS));
1651 ALOGV("checkOutputsForDevice() direct output sup formats %s",
1653 value = strpbrk((char *)reply.string(), "=");
1654 if (value != NULL) {
1655 loadFormats(value + 1, profile);
1658 if (profile->mChannelMasks[0] == 0) {
1659 reply = mpClientInterface->getParameters(output,
1660 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS));
1661 ALOGV("checkOutputsForDevice() direct output sup channel masks %s",
1663 value = strpbrk((char *)reply.string(), "=");
1664 if (value != NULL) {
1665 loadOutChannels(value + 1, profile);
1668 if (((profile->mSamplingRates[0] == 0) &&
1669 (profile->mSamplingRates.size() < 2)) ||
1670 ((profile->mFormats[0] == 0) &&
1671 (profile->mFormats.size() < 2)) ||
1672 ((profile->mFormats[0] == 0) &&
1673 (profile->mChannelMasks.size() < 2))) {
1674 ALOGW("checkOutputsForDevice() direct output missing param");
1675 mpClientInterface->closeOutput(output);
1678 addOutput(output, desc);
1681 audio_io_handle_t duplicatedOutput = 0;
1682 // add output descriptor
1683 addOutput(output, desc);
1684 // set initial stream volume for device
1685 applyStreamVolumes(output, device, 0, true);
1687 //TODO: configure audio effect output stage here
1689 // open a duplicating output thread for the new output and the primary output
1690 duplicatedOutput = mpClientInterface->openDuplicateOutput(output,
1692 if (duplicatedOutput != 0) {
1693 // add duplicated output descriptor
1694 AudioOutputDescriptor *dupOutputDesc = new AudioOutputDescriptor(NULL);
1695 dupOutputDesc->mOutput1 = mOutputs.valueFor(mPrimaryOutput);
1696 dupOutputDesc->mOutput2 = mOutputs.valueFor(output);
1697 dupOutputDesc->mSamplingRate = desc->mSamplingRate;
1698 dupOutputDesc->mFormat = desc->mFormat;
1699 dupOutputDesc->mChannelMask = desc->mChannelMask;
1700 dupOutputDesc->mLatency = desc->mLatency;
1701 addOutput(duplicatedOutput, dupOutputDesc);
1702 applyStreamVolumes(duplicatedOutput, device, 0, true);
1704 ALOGW("checkOutputsForDevice() could not open dup output for %d and %d",
1705 mPrimaryOutput, output);
1706 mpClientInterface->closeOutput(output);
1707 mOutputs.removeItem(output);
1713 ALOGW("checkOutputsForDevice() could not open output for device %x", device);
1715 profiles.removeAt(profile_index);
1718 outputs.add(output);
1719 ALOGV("checkOutputsForDevice(): adding output %d", output);
1723 if (profiles.isEmpty()) {
1724 ALOGW("checkOutputsForDevice(): No output available for device %04x", device);
1728 // check if one opened output is not needed any more after disconnecting one device
1729 for (size_t i = 0; i < mOutputs.size(); i++) {
1730 desc = mOutputs.valueAt(i);
1731 if (!desc->isDuplicated() &&
1732 !(desc->mProfile->mSupportedDevices & mAvailableOutputDevices)) {
1733 ALOGV("checkOutputsForDevice(): disconnecting adding output %d", mOutputs.keyAt(i));
1734 outputs.add(mOutputs.keyAt(i));
1737 for (size_t i = 0; i < mHwModules.size(); i++)
1739 if (mHwModules[i]->mHandle == 0) {
1742 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++)
1744 IOProfile *profile = mHwModules[i]->mOutputProfiles[j];
1745 if ((profile->mSupportedDevices & device) &&
1746 (profile->mFlags & AUDIO_OUTPUT_FLAG_DIRECT)) {
1747 ALOGV("checkOutputsForDevice(): clearing direct output profile %d on module %d",
1749 if (profile->mSamplingRates[0] == 0) {
1750 profile->mSamplingRates.clear();
1751 profile->mSamplingRates.add(0);
1753 if (profile->mFormats[0] == 0) {
1754 profile->mFormats.clear();
1755 profile->mFormats.add((audio_format_t)0);
1757 if (profile->mChannelMasks[0] == 0) {
1758 profile->mChannelMasks.clear();
1759 profile->mChannelMasks.add((audio_channel_mask_t)0);
1768 void AudioPolicyManagerBase::closeOutput(audio_io_handle_t output)
1770 ALOGV("closeOutput(%d)", output);
1772 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
1773 if (outputDesc == NULL) {
1774 ALOGW("closeOutput() unknown output %d", output);
1778 // look for duplicated outputs connected to the output being removed.
1779 for (size_t i = 0; i < mOutputs.size(); i++) {
1780 AudioOutputDescriptor *dupOutputDesc = mOutputs.valueAt(i);
1781 if (dupOutputDesc->isDuplicated() &&
1782 (dupOutputDesc->mOutput1 == outputDesc ||
1783 dupOutputDesc->mOutput2 == outputDesc)) {
1784 AudioOutputDescriptor *outputDesc2;
1785 if (dupOutputDesc->mOutput1 == outputDesc) {
1786 outputDesc2 = dupOutputDesc->mOutput2;
1788 outputDesc2 = dupOutputDesc->mOutput1;
1790 // As all active tracks on duplicated output will be deleted,
1791 // and as they were also referenced on the other output, the reference
1792 // count for their stream type must be adjusted accordingly on
1793 // the other output.
1794 for (int j = 0; j < (int)AudioSystem::NUM_STREAM_TYPES; j++) {
1795 int refCount = dupOutputDesc->mRefCount[j];
1796 outputDesc2->changeRefCount((AudioSystem::stream_type)j,-refCount);
1798 audio_io_handle_t duplicatedOutput = mOutputs.keyAt(i);
1799 ALOGV("closeOutput() closing also duplicated output %d", duplicatedOutput);
1801 mpClientInterface->closeOutput(duplicatedOutput);
1802 delete mOutputs.valueFor(duplicatedOutput);
1803 mOutputs.removeItem(duplicatedOutput);
1807 AudioParameter param;
1808 param.add(String8("closing"), String8("true"));
1809 mpClientInterface->setParameters(output, param.toString());
1811 mpClientInterface->closeOutput(output);
1812 delete mOutputs.valueFor(output);
1813 mOutputs.removeItem(output);
1816 SortedVector<audio_io_handle_t> AudioPolicyManagerBase::getOutputsForDevice(audio_devices_t device,
1817 DefaultKeyedVector<audio_io_handle_t, AudioOutputDescriptor *> openOutputs)
1819 SortedVector<audio_io_handle_t> outputs;
1821 ALOGVV("getOutputsForDevice() device %04x", device);
1822 for (size_t i = 0; i < openOutputs.size(); i++) {
1823 ALOGVV("output %d isDuplicated=%d device=%04x",
1824 i, openOutputs.valueAt(i)->isDuplicated(), openOutputs.valueAt(i)->supportedDevices());
1825 if ((device & openOutputs.valueAt(i)->supportedDevices()) == device) {
1826 ALOGVV("getOutputsForDevice() found output %d", openOutputs.keyAt(i));
1827 outputs.add(openOutputs.keyAt(i));
1833 bool AudioPolicyManagerBase::vectorsEqual(SortedVector<audio_io_handle_t>& outputs1,
1834 SortedVector<audio_io_handle_t>& outputs2)
1836 if (outputs1.size() != outputs2.size()) {
1839 for (size_t i = 0; i < outputs1.size(); i++) {
1840 if (outputs1[i] != outputs2[i]) {
1847 void AudioPolicyManagerBase::checkOutputForStrategy(routing_strategy strategy)
1849 audio_devices_t oldDevice = getDeviceForStrategy(strategy, true /*fromCache*/);
1850 audio_devices_t newDevice = getDeviceForStrategy(strategy, false /*fromCache*/);
1851 SortedVector<audio_io_handle_t> srcOutputs = getOutputsForDevice(oldDevice, mPreviousOutputs);
1852 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(newDevice, mOutputs);
1854 if (!vectorsEqual(srcOutputs,dstOutputs)) {
1855 ALOGV("checkOutputForStrategy() strategy %d, moving from output %d to output %d",
1856 strategy, srcOutputs[0], dstOutputs[0]);
1857 // mute strategy while moving tracks from one output to another
1858 for (size_t i = 0; i < srcOutputs.size(); i++) {
1859 AudioOutputDescriptor *desc = mOutputs.valueFor(srcOutputs[i]);
1860 if (desc->strategyRefCount(strategy) != 0) {
1861 setStrategyMute(strategy, true, srcOutputs[i]);
1862 setStrategyMute(strategy, false, srcOutputs[i], MUTE_TIME_MS, newDevice);
1866 // Move effects associated to this strategy from previous output to new output
1867 if (strategy == STRATEGY_MEDIA) {
1869 for (size_t i = 0; i < dstOutputs.size(); i++) {
1870 AudioOutputDescriptor *desc = mOutputs.valueFor(dstOutputs[i]);
1871 if (desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) {
1875 SortedVector<audio_io_handle_t> moved;
1876 for (size_t i = 0; i < mEffects.size(); i++) {
1877 EffectDescriptor *desc = mEffects.valueAt(i);
1878 if (desc->mSession == AUDIO_SESSION_OUTPUT_MIX &&
1879 desc->mIo != dstOutputs[outIdx]) {
1880 if (moved.indexOf(desc->mIo) < 0) {
1881 ALOGV("checkOutputForStrategy() moving effect %d to output %d",
1882 mEffects.keyAt(i), dstOutputs[outIdx]);
1883 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, desc->mIo,
1884 dstOutputs[outIdx]);
1885 moved.add(desc->mIo);
1887 desc->mIo = dstOutputs[outIdx];
1891 // Move tracks associated to this strategy from previous output to new output
1892 for (int i = 0; i < (int)AudioSystem::NUM_STREAM_TYPES; i++) {
1893 if (getStrategy((AudioSystem::stream_type)i) == strategy) {
1894 //FIXME see fixme on name change
1895 mpClientInterface->setStreamOutput((AudioSystem::stream_type)i,
1896 dstOutputs[0] /* ignored */);
1902 void AudioPolicyManagerBase::checkOutputForAllStrategies()
1904 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE);
1905 checkOutputForStrategy(STRATEGY_PHONE);
1906 checkOutputForStrategy(STRATEGY_SONIFICATION);
1907 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL);
1908 checkOutputForStrategy(STRATEGY_MEDIA);
1909 checkOutputForStrategy(STRATEGY_DTMF);
1912 audio_io_handle_t AudioPolicyManagerBase::getA2dpOutput()
1918 for (size_t i = 0; i < mOutputs.size(); i++) {
1919 AudioOutputDescriptor *outputDesc = mOutputs.valueAt(i);
1920 if (!outputDesc->isDuplicated() && outputDesc->device() & AUDIO_DEVICE_OUT_ALL_A2DP) {
1921 return mOutputs.keyAt(i);
1928 void AudioPolicyManagerBase::checkA2dpSuspend()
1933 audio_io_handle_t a2dpOutput = getA2dpOutput();
1934 if (a2dpOutput == 0) {
1938 // suspend A2DP output if:
1939 // (NOT already suspended) &&
1940 // ((SCO device is connected &&
1941 // (forced usage for communication || for record is SCO))) ||
1942 // (phone state is ringing || in call)
1944 // restore A2DP output if:
1945 // (Already suspended) &&
1946 // ((SCO device is NOT connected ||
1947 // (forced usage NOT for communication && NOT for record is SCO))) &&
1948 // (phone state is NOT ringing && NOT in call)
1950 if (mA2dpSuspended) {
1951 if (((mScoDeviceAddress == "") ||
1952 ((mForceUse[AudioSystem::FOR_COMMUNICATION] != AudioSystem::FORCE_BT_SCO) &&
1953 (mForceUse[AudioSystem::FOR_RECORD] != AudioSystem::FORCE_BT_SCO))) &&
1954 ((mPhoneState != AudioSystem::MODE_IN_CALL) &&
1955 (mPhoneState != AudioSystem::MODE_RINGTONE))) {
1957 mpClientInterface->restoreOutput(a2dpOutput);
1958 mA2dpSuspended = false;
1961 if (((mScoDeviceAddress != "") &&
1962 ((mForceUse[AudioSystem::FOR_COMMUNICATION] == AudioSystem::FORCE_BT_SCO) ||
1963 (mForceUse[AudioSystem::FOR_RECORD] == AudioSystem::FORCE_BT_SCO))) ||
1964 ((mPhoneState == AudioSystem::MODE_IN_CALL) ||
1965 (mPhoneState == AudioSystem::MODE_RINGTONE))) {
1967 mpClientInterface->suspendOutput(a2dpOutput);
1968 mA2dpSuspended = true;
1973 audio_devices_t AudioPolicyManagerBase::getNewDevice(audio_io_handle_t output, bool fromCache)
1975 audio_devices_t device = AUDIO_DEVICE_NONE;
1977 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
1978 // check the following by order of priority to request a routing change if necessary:
1979 // 1: the strategy enforced audible is active on the output:
1980 // use device for strategy enforced audible
1981 // 2: we are in call or the strategy phone is active on the output:
1982 // use device for strategy phone
1983 // 3: the strategy sonification is active on the output:
1984 // use device for strategy sonification
1985 // 4: the strategy "respectful" sonification is active on the output:
1986 // use device for strategy "respectful" sonification
1987 // 5: the strategy media is active on the output:
1988 // use device for strategy media
1989 // 6: the strategy DTMF is active on the output:
1990 // use device for strategy DTMF
1991 if (outputDesc->isUsedByStrategy(STRATEGY_ENFORCED_AUDIBLE)) {
1992 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache);
1993 } else if (isInCall() ||
1994 outputDesc->isUsedByStrategy(STRATEGY_PHONE)) {
1995 device = getDeviceForStrategy(STRATEGY_PHONE, fromCache);
1996 } else if (outputDesc->isUsedByStrategy(STRATEGY_SONIFICATION)) {
1997 device = getDeviceForStrategy(STRATEGY_SONIFICATION, fromCache);
1998 } else if (outputDesc->isUsedByStrategy(STRATEGY_SONIFICATION_RESPECTFUL)) {
1999 device = getDeviceForStrategy(STRATEGY_SONIFICATION_RESPECTFUL, fromCache);
2000 } else if (outputDesc->isUsedByStrategy(STRATEGY_MEDIA)) {
2001 device = getDeviceForStrategy(STRATEGY_MEDIA, fromCache);
2002 } else if (outputDesc->isUsedByStrategy(STRATEGY_DTMF)) {
2003 device = getDeviceForStrategy(STRATEGY_DTMF, fromCache);
2006 ALOGV("getNewDevice() selected device %x", device);
2010 uint32_t AudioPolicyManagerBase::getStrategyForStream(AudioSystem::stream_type stream) {
2011 return (uint32_t)getStrategy(stream);
2014 audio_devices_t AudioPolicyManagerBase::getDevicesForStream(AudioSystem::stream_type stream) {
2015 audio_devices_t devices;
2016 // By checking the range of stream before calling getStrategy, we avoid
2017 // getStrategy's behavior for invalid streams. getStrategy would do a ALOGE
2018 // and then return STRATEGY_MEDIA, but we want to return the empty set.
2019 if (stream < (AudioSystem::stream_type) 0 || stream >= AudioSystem::NUM_STREAM_TYPES) {
2020 devices = AUDIO_DEVICE_NONE;
2022 AudioPolicyManagerBase::routing_strategy strategy = getStrategy(stream);
2023 devices = getDeviceForStrategy(strategy, true /*fromCache*/);
2028 AudioPolicyManagerBase::routing_strategy AudioPolicyManagerBase::getStrategy(
2029 AudioSystem::stream_type stream) {
2030 // stream to strategy mapping
2032 case AudioSystem::VOICE_CALL:
2033 case AudioSystem::BLUETOOTH_SCO:
2034 return STRATEGY_PHONE;
2035 case AudioSystem::RING:
2036 case AudioSystem::ALARM:
2037 return STRATEGY_SONIFICATION;
2038 case AudioSystem::NOTIFICATION:
2039 return STRATEGY_SONIFICATION_RESPECTFUL;
2040 case AudioSystem::DTMF:
2041 return STRATEGY_DTMF;
2043 ALOGE("unknown stream type");
2044 case AudioSystem::SYSTEM:
2045 // NOTE: SYSTEM stream uses MEDIA strategy because muting music and switching outputs
2046 // while key clicks are played produces a poor result
2047 case AudioSystem::TTS:
2048 case AudioSystem::MUSIC:
2049 return STRATEGY_MEDIA;
2050 case AudioSystem::ENFORCED_AUDIBLE:
2051 return STRATEGY_ENFORCED_AUDIBLE;
2055 void AudioPolicyManagerBase::handleNotificationRoutingForStream(AudioSystem::stream_type stream) {
2057 case AudioSystem::MUSIC:
2058 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL);
2059 updateDevicesAndOutputs();
2066 audio_devices_t AudioPolicyManagerBase::getDeviceForStrategy(routing_strategy strategy,
2069 uint32_t device = AUDIO_DEVICE_NONE;
2072 ALOGVV("getDeviceForStrategy() from cache strategy %d, device %x",
2073 strategy, mDeviceForStrategy[strategy]);
2074 return mDeviceForStrategy[strategy];
2079 case STRATEGY_SONIFICATION_RESPECTFUL:
2081 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/);
2082 } else if (isStreamActive(AudioSystem::MUSIC, SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) {
2083 // while media is playing (or has recently played), use the same device
2084 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/);
2086 // when media is not playing anymore, fall back on the sonification behavior
2087 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/);
2094 // when off call, DTMF strategy follows the same rules as MEDIA strategy
2095 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/);
2098 // when in call, DTMF and PHONE strategies follow the same rules
2101 case STRATEGY_PHONE:
2102 // for phone strategy, we first consider the forced use and then the available devices by order
2104 switch (mForceUse[AudioSystem::FOR_COMMUNICATION]) {
2105 case AudioSystem::FORCE_BT_SCO:
2106 if (!isInCall() || strategy != STRATEGY_DTMF) {
2107 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT;
2110 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET;
2112 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_SCO;
2114 // if SCO device is requested but no SCO device is available, fall back to default case
2117 default: // FORCE_NONE
2118 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to A2DP
2119 if (mHasA2dp && !isInCall() &&
2120 (mForceUse[AudioSystem::FOR_MEDIA] != AudioSystem::FORCE_NO_BT_A2DP) &&
2121 (getA2dpOutput() != 0) && !mA2dpSuspended) {
2122 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP;
2124 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES;
2127 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_WIRED_HEADPHONE;
2129 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_WIRED_HEADSET;
2131 if (mPhoneState != AudioSystem::MODE_IN_CALL) {
2132 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_ACCESSORY;
2134 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_DEVICE;
2136 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET;
2138 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_AUX_DIGITAL;
2140 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET;
2143 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_EARPIECE;
2145 device = mDefaultOutputDevice;
2146 if (device == AUDIO_DEVICE_NONE) {
2147 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE");
2151 case AudioSystem::FORCE_SPEAKER:
2152 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to
2153 // A2DP speaker when forcing to speaker output
2154 if (mHasA2dp && !isInCall() &&
2155 (mForceUse[AudioSystem::FOR_MEDIA] != AudioSystem::FORCE_NO_BT_A2DP) &&
2156 (getA2dpOutput() != 0) && !mA2dpSuspended) {
2157 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER;
2160 if (mPhoneState != AudioSystem::MODE_IN_CALL) {
2161 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_ACCESSORY;
2163 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_DEVICE;
2165 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET;
2167 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_AUX_DIGITAL;
2169 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET;
2172 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_SPEAKER;
2174 device = mDefaultOutputDevice;
2175 if (device == AUDIO_DEVICE_NONE) {
2176 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE, FORCE_SPEAKER");
2182 case STRATEGY_SONIFICATION:
2184 // If incall, just select the STRATEGY_PHONE device: The rest of the behavior is handled by
2185 // handleIncallSonification().
2187 device = getDeviceForStrategy(STRATEGY_PHONE, false /*fromCache*/);
2192 case STRATEGY_ENFORCED_AUDIBLE:
2193 // strategy STRATEGY_ENFORCED_AUDIBLE uses same routing policy as STRATEGY_SONIFICATION
2195 // - when in call where it doesn't default to STRATEGY_PHONE behavior
2196 // - in countries where not enforced in which case it follows STRATEGY_MEDIA
2198 if ((strategy == STRATEGY_SONIFICATION) ||
2199 (mForceUse[AudioSystem::FOR_SYSTEM] == AudioSystem::FORCE_SYSTEM_ENFORCED)) {
2200 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_SPEAKER;
2201 if (device == AUDIO_DEVICE_NONE) {
2202 ALOGE("getDeviceForStrategy() speaker device not found for STRATEGY_SONIFICATION");
2205 // The second device used for sonification is the same as the device used by media strategy
2208 case STRATEGY_MEDIA: {
2209 uint32_t device2 = AUDIO_DEVICE_NONE;
2210 if (strategy != STRATEGY_SONIFICATION) {
2211 // no sonification on remote submix (e.g. WFD)
2212 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_REMOTE_SUBMIX;
2214 if ((device2 == AUDIO_DEVICE_NONE) &&
2215 mHasA2dp && (mForceUse[AudioSystem::FOR_MEDIA] != AudioSystem::FORCE_NO_BT_A2DP) &&
2216 (getA2dpOutput() != 0) && !mA2dpSuspended) {
2217 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP;
2218 if (device2 == AUDIO_DEVICE_NONE) {
2219 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES;
2221 if (device2 == AUDIO_DEVICE_NONE) {
2222 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER;
2225 if (device2 == AUDIO_DEVICE_NONE) {
2226 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_WIRED_HEADPHONE;
2228 if (device2 == AUDIO_DEVICE_NONE) {
2229 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_WIRED_HEADSET;
2231 if (device2 == AUDIO_DEVICE_NONE) {
2232 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_ACCESSORY;
2234 if (device2 == AUDIO_DEVICE_NONE) {
2235 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_DEVICE;
2237 if (device2 == AUDIO_DEVICE_NONE) {
2238 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET;
2240 if ((device2 == AUDIO_DEVICE_NONE) && (strategy != STRATEGY_SONIFICATION)) {
2241 // no sonification on aux digital (e.g. HDMI)
2242 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_AUX_DIGITAL;
2244 if ((device2 == AUDIO_DEVICE_NONE) &&
2245 (mForceUse[AudioSystem::FOR_DOCK] == AudioSystem::FORCE_ANALOG_DOCK)) {
2246 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET;
2248 if (device2 == AUDIO_DEVICE_NONE) {
2249 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_SPEAKER;
2252 // device is DEVICE_OUT_SPEAKER if we come from case STRATEGY_SONIFICATION or
2253 // STRATEGY_ENFORCED_AUDIBLE, AUDIO_DEVICE_NONE otherwise
2256 device = mDefaultOutputDevice;
2257 if (device == AUDIO_DEVICE_NONE) {
2258 ALOGE("getDeviceForStrategy() no device found for STRATEGY_MEDIA");
2263 ALOGW("getDeviceForStrategy() unknown strategy: %d", strategy);
2267 ALOGVV("getDeviceForStrategy() strategy %d, device %x", strategy, device);
2271 void AudioPolicyManagerBase::updateDevicesAndOutputs()
2273 for (int i = 0; i < NUM_STRATEGIES; i++) {
2274 mDeviceForStrategy[i] = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/);
2276 mPreviousOutputs = mOutputs;
2279 uint32_t AudioPolicyManagerBase::checkDeviceMuteStrategies(AudioOutputDescriptor *outputDesc,
2280 audio_devices_t prevDevice,
2283 // mute/unmute strategies using an incompatible device combination
2284 // if muting, wait for the audio in pcm buffer to be drained before proceeding
2285 // if unmuting, unmute only after the specified delay
2286 if (outputDesc->isDuplicated()) {
2290 uint32_t muteWaitMs = 0;
2291 audio_devices_t device = outputDesc->device();
2292 bool shouldMute = (outputDesc->refCount() != 0) &&
2293 (AudioSystem::popCount(device) >= 2);
2294 // temporary mute output if device selection changes to avoid volume bursts due to
2295 // different per device volumes
2296 bool tempMute = (outputDesc->refCount() != 0) && (device != prevDevice);
2298 for (size_t i = 0; i < NUM_STRATEGIES; i++) {
2299 audio_devices_t curDevice = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/);
2300 bool mute = shouldMute && (curDevice & device) && (curDevice != device);
2301 bool doMute = false;
2303 if (mute && !outputDesc->mStrategyMutedByDevice[i]) {
2305 outputDesc->mStrategyMutedByDevice[i] = true;
2306 } else if (!mute && outputDesc->mStrategyMutedByDevice[i]){
2308 outputDesc->mStrategyMutedByDevice[i] = false;
2310 if (doMute || tempMute) {
2311 for (size_t j = 0; j < mOutputs.size(); j++) {
2312 AudioOutputDescriptor *desc = mOutputs.valueAt(j);
2313 if ((desc->supportedDevices() & outputDesc->supportedDevices())
2314 == AUDIO_DEVICE_NONE) {
2317 audio_io_handle_t curOutput = mOutputs.keyAt(j);
2318 ALOGVV("checkDeviceMuteStrategies() %s strategy %d (curDevice %04x) on output %d",
2319 mute ? "muting" : "unmuting", i, curDevice, curOutput);
2320 setStrategyMute((routing_strategy)i, mute, curOutput, mute ? 0 : delayMs);
2321 if (desc->strategyRefCount((routing_strategy)i) != 0) {
2323 setStrategyMute((routing_strategy)i, true, curOutput);
2324 setStrategyMute((routing_strategy)i, false, curOutput,
2325 desc->latency() * 2, device);
2327 if (tempMute || mute) {
2328 if (muteWaitMs < desc->latency()) {
2329 muteWaitMs = desc->latency();
2337 // FIXME: should not need to double latency if volume could be applied immediately by the
2338 // audioflinger mixer. We must account for the delay between now and the next time
2339 // the audioflinger thread for this output will process a buffer (which corresponds to
2340 // one buffer size, usually 1/2 or 1/4 of the latency).
2342 // wait for the PCM output buffers to empty before proceeding with the rest of the command
2343 if (muteWaitMs > delayMs) {
2344 muteWaitMs -= delayMs;
2345 usleep(muteWaitMs * 1000);
2351 uint32_t AudioPolicyManagerBase::setOutputDevice(audio_io_handle_t output,
2352 audio_devices_t device,
2356 ALOGV("setOutputDevice() output %d device %04x delayMs %d", output, device, delayMs);
2357 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
2358 AudioParameter param;
2359 uint32_t muteWaitMs = 0;
2361 if (outputDesc->isDuplicated()) {
2362 muteWaitMs = setOutputDevice(outputDesc->mOutput1->mId, device, force, delayMs);
2363 muteWaitMs += setOutputDevice(outputDesc->mOutput2->mId, device, force, delayMs);
2366 // filter devices according to output selected
2367 device = (audio_devices_t)(device & outputDesc->mProfile->mSupportedDevices);
2369 audio_devices_t prevDevice = outputDesc->mDevice;
2371 ALOGV("setOutputDevice() prevDevice %04x", prevDevice);
2373 if (device != AUDIO_DEVICE_NONE) {
2374 outputDesc->mDevice = device;
2376 muteWaitMs = checkDeviceMuteStrategies(outputDesc, prevDevice, delayMs);
2378 // Do not change the routing if:
2379 // - the requested device is AUDIO_DEVICE_NONE
2380 // - the requested device is the same as current device and force is not specified.
2381 // Doing this check here allows the caller to call setOutputDevice() without conditions
2382 if ((device == AUDIO_DEVICE_NONE || device == prevDevice) && !force) {
2383 ALOGV("setOutputDevice() setting same device %04x or null device for output %d", device, output);
2387 ALOGV("setOutputDevice() changing device");
2389 param.addInt(String8(AudioParameter::keyRouting), (int)device);
2390 mpClientInterface->setParameters(output, param.toString(), delayMs);
2392 // update stream volumes according to new device
2393 applyStreamVolumes(output, device, delayMs);
2398 AudioPolicyManagerBase::IOProfile *AudioPolicyManagerBase::getInputProfile(audio_devices_t device,
2399 uint32_t samplingRate,
2401 uint32_t channelMask)
2403 // Choose an input profile based on the requested capture parameters: select the first available
2404 // profile supporting all requested parameters.
2406 for (size_t i = 0; i < mHwModules.size(); i++)
2408 if (mHwModules[i]->mHandle == 0) {
2411 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++)
2413 IOProfile *profile = mHwModules[i]->mInputProfiles[j];
2414 if (profile->isCompatibleProfile(device, samplingRate, format,
2415 channelMask,(audio_output_flags_t)0)) {
2423 audio_devices_t AudioPolicyManagerBase::getDeviceForInputSource(int inputSource)
2425 uint32_t device = AUDIO_DEVICE_NONE;
2427 switch(inputSource) {
2428 case AUDIO_SOURCE_DEFAULT:
2429 case AUDIO_SOURCE_MIC:
2430 case AUDIO_SOURCE_VOICE_RECOGNITION:
2431 case AUDIO_SOURCE_VOICE_COMMUNICATION:
2432 if (mForceUse[AudioSystem::FOR_RECORD] == AudioSystem::FORCE_BT_SCO &&
2433 mAvailableInputDevices & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) {
2434 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET;
2435 } else if (mAvailableInputDevices & AUDIO_DEVICE_IN_WIRED_HEADSET) {
2436 device = AUDIO_DEVICE_IN_WIRED_HEADSET;
2437 } else if (mAvailableInputDevices & AUDIO_DEVICE_IN_BUILTIN_MIC) {
2438 device = AUDIO_DEVICE_IN_BUILTIN_MIC;
2441 case AUDIO_SOURCE_CAMCORDER:
2442 if (mAvailableInputDevices & AUDIO_DEVICE_IN_BACK_MIC) {
2443 device = AUDIO_DEVICE_IN_BACK_MIC;
2444 } else if (mAvailableInputDevices & AUDIO_DEVICE_IN_BUILTIN_MIC) {
2445 device = AUDIO_DEVICE_IN_BUILTIN_MIC;
2448 case AUDIO_SOURCE_VOICE_UPLINK:
2449 case AUDIO_SOURCE_VOICE_DOWNLINK:
2450 case AUDIO_SOURCE_VOICE_CALL:
2451 if (mAvailableInputDevices & AUDIO_DEVICE_IN_VOICE_CALL) {
2452 device = AUDIO_DEVICE_IN_VOICE_CALL;
2455 case AUDIO_SOURCE_REMOTE_SUBMIX:
2456 if (mAvailableInputDevices & AUDIO_DEVICE_IN_REMOTE_SUBMIX) {
2457 device = AUDIO_DEVICE_IN_REMOTE_SUBMIX;
2461 ALOGW("getDeviceForInputSource() invalid input source %d", inputSource);
2464 ALOGV("getDeviceForInputSource()input source %d, device %08x", inputSource, device);
2468 bool AudioPolicyManagerBase::isVirtualInputDevice(audio_devices_t device)
2470 if ((device & AUDIO_DEVICE_BIT_IN) != 0) {
2471 device &= ~AUDIO_DEVICE_BIT_IN;
2472 if ((popcount(device) == 1) && ((device & ~APM_AUDIO_IN_DEVICE_VIRTUAL_ALL) == 0))
2478 audio_io_handle_t AudioPolicyManagerBase::getActiveInput(bool ignoreVirtualInputs)
2480 for (size_t i = 0; i < mInputs.size(); i++) {
2481 const AudioInputDescriptor * input_descriptor = mInputs.valueAt(i);
2482 if ((input_descriptor->mRefCount > 0)
2483 && (!ignoreVirtualInputs || !isVirtualInputDevice(input_descriptor->mDevice))) {
2484 return mInputs.keyAt(i);
2491 audio_devices_t AudioPolicyManagerBase::getDeviceForVolume(audio_devices_t device)
2493 if (device == AUDIO_DEVICE_NONE) {
2494 // this happens when forcing a route update and no track is active on an output.
2495 // In this case the returned category is not important.
2496 device = AUDIO_DEVICE_OUT_SPEAKER;
2497 } else if (AudioSystem::popCount(device) > 1) {
2498 // Multiple device selection is either:
2499 // - speaker + one other device: give priority to speaker in this case.
2500 // - one A2DP device + another device: happens with duplicated output. In this case
2501 // retain the device on the A2DP output as the other must not correspond to an active
2502 // selection if not the speaker.
2503 if (device & AUDIO_DEVICE_OUT_SPEAKER) {
2504 device = AUDIO_DEVICE_OUT_SPEAKER;
2506 device = (audio_devices_t)(device & AUDIO_DEVICE_OUT_ALL_A2DP);
2510 ALOGW_IF(AudioSystem::popCount(device) != 1,
2511 "getDeviceForVolume() invalid device combination: %08x",
2517 AudioPolicyManagerBase::device_category AudioPolicyManagerBase::getDeviceCategory(audio_devices_t device)
2519 switch(getDeviceForVolume(device)) {
2520 case AUDIO_DEVICE_OUT_EARPIECE:
2521 return DEVICE_CATEGORY_EARPIECE;
2522 case AUDIO_DEVICE_OUT_WIRED_HEADSET:
2523 case AUDIO_DEVICE_OUT_WIRED_HEADPHONE:
2524 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO:
2525 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET:
2526 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP:
2527 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES:
2528 return DEVICE_CATEGORY_HEADSET;
2529 case AUDIO_DEVICE_OUT_SPEAKER:
2530 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT:
2531 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER:
2532 case AUDIO_DEVICE_OUT_AUX_DIGITAL:
2533 case AUDIO_DEVICE_OUT_USB_ACCESSORY:
2534 case AUDIO_DEVICE_OUT_USB_DEVICE:
2535 case AUDIO_DEVICE_OUT_REMOTE_SUBMIX:
2537 return DEVICE_CATEGORY_SPEAKER;
2541 float AudioPolicyManagerBase::volIndexToAmpl(audio_devices_t device, const StreamDescriptor& streamDesc,
2544 device_category deviceCategory = getDeviceCategory(device);
2545 const VolumeCurvePoint *curve = streamDesc.mVolumeCurve[deviceCategory];
2547 // the volume index in the UI is relative to the min and max volume indices for this stream type
2548 int nbSteps = 1 + curve[VOLMAX].mIndex -
2549 curve[VOLMIN].mIndex;
2550 int volIdx = (nbSteps * (indexInUi - streamDesc.mIndexMin)) /
2551 (streamDesc.mIndexMax - streamDesc.mIndexMin);
2553 // find what part of the curve this index volume belongs to, or if it's out of bounds
2555 if (volIdx < curve[VOLMIN].mIndex) { // out of bounds
2557 } else if (volIdx < curve[VOLKNEE1].mIndex) {
2559 } else if (volIdx < curve[VOLKNEE2].mIndex) {
2561 } else if (volIdx <= curve[VOLMAX].mIndex) {
2563 } else { // out of bounds
2567 // linear interpolation in the attenuation table in dB
2568 float decibels = curve[segment].mDBAttenuation +
2569 ((float)(volIdx - curve[segment].mIndex)) *
2570 ( (curve[segment+1].mDBAttenuation -
2571 curve[segment].mDBAttenuation) /
2572 ((float)(curve[segment+1].mIndex -
2573 curve[segment].mIndex)) );
2575 float amplification = exp( decibels * 0.115129f); // exp( dB * ln(10) / 20 )
2577 ALOGVV("VOLUME vol index=[%d %d %d], dB=[%.1f %.1f %.1f] ampl=%.5f",
2578 curve[segment].mIndex, volIdx,
2579 curve[segment+1].mIndex,
2580 curve[segment].mDBAttenuation,
2582 curve[segment+1].mDBAttenuation,
2585 return amplification;
2588 const AudioPolicyManagerBase::VolumeCurvePoint
2589 AudioPolicyManagerBase::sDefaultVolumeCurve[AudioPolicyManagerBase::VOLCNT] = {
2590 {1, -49.5f}, {33, -33.5f}, {66, -17.0f}, {100, 0.0f}
2593 const AudioPolicyManagerBase::VolumeCurvePoint
2594 AudioPolicyManagerBase::sDefaultMediaVolumeCurve[AudioPolicyManagerBase::VOLCNT] = {
2595 {1, -58.0f}, {20, -40.0f}, {60, -17.0f}, {100, 0.0f}
2598 const AudioPolicyManagerBase::VolumeCurvePoint
2599 AudioPolicyManagerBase::sSpeakerMediaVolumeCurve[AudioPolicyManagerBase::VOLCNT] = {
2600 {1, -56.0f}, {20, -34.0f}, {60, -11.0f}, {100, 0.0f}
2603 const AudioPolicyManagerBase::VolumeCurvePoint
2604 AudioPolicyManagerBase::sSpeakerSonificationVolumeCurve[AudioPolicyManagerBase::VOLCNT] = {
2605 {1, -29.7f}, {33, -20.1f}, {66, -10.2f}, {100, 0.0f}
2608 // AUDIO_STREAM_SYSTEM, AUDIO_STREAM_ENFORCED_AUDIBLE and AUDIO_STREAM_DTMF volume tracks
2609 // AUDIO_STREAM_RING on phones and AUDIO_STREAM_MUSIC on tablets (See AudioService.java).
2610 // The range is constrained between -24dB and -6dB over speaker and -30dB and -18dB over headset.
2611 const AudioPolicyManagerBase::VolumeCurvePoint
2612 AudioPolicyManagerBase::sDefaultSystemVolumeCurve[AudioPolicyManagerBase::VOLCNT] = {
2613 {1, -24.0f}, {33, -18.0f}, {66, -12.0f}, {100, -6.0f}
2616 const AudioPolicyManagerBase::VolumeCurvePoint
2617 AudioPolicyManagerBase::sHeadsetSystemVolumeCurve[AudioPolicyManagerBase::VOLCNT] = {
2618 {1, -30.0f}, {33, -26.0f}, {66, -22.0f}, {100, -18.0f}
2621 const AudioPolicyManagerBase::VolumeCurvePoint
2622 AudioPolicyManagerBase::sDefaultVoiceVolumeCurve[AudioPolicyManagerBase::VOLCNT] = {
2623 {0, -42.0f}, {33, -28.0f}, {66, -14.0f}, {100, 0.0f}
2626 const AudioPolicyManagerBase::VolumeCurvePoint
2627 AudioPolicyManagerBase::sSpeakerVoiceVolumeCurve[AudioPolicyManagerBase::VOLCNT] = {
2628 {0, -24.0f}, {33, -16.0f}, {66, -8.0f}, {100, 0.0f}
2631 const AudioPolicyManagerBase::VolumeCurvePoint
2632 *AudioPolicyManagerBase::sVolumeProfiles[AUDIO_STREAM_CNT]
2633 [AudioPolicyManagerBase::DEVICE_CATEGORY_CNT] = {
2634 { // AUDIO_STREAM_VOICE_CALL
2635 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET
2636 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER
2637 sDefaultVoiceVolumeCurve // DEVICE_CATEGORY_EARPIECE
2639 { // AUDIO_STREAM_SYSTEM
2640 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET
2641 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER
2642 sDefaultSystemVolumeCurve // DEVICE_CATEGORY_EARPIECE
2644 { // AUDIO_STREAM_RING
2645 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET
2646 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER
2647 sDefaultVolumeCurve // DEVICE_CATEGORY_EARPIECE
2649 { // AUDIO_STREAM_MUSIC
2650 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET
2651 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER
2652 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EARPIECE
2654 { // AUDIO_STREAM_ALARM
2655 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET
2656 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER
2657 sDefaultVolumeCurve // DEVICE_CATEGORY_EARPIECE
2659 { // AUDIO_STREAM_NOTIFICATION
2660 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET
2661 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER
2662 sDefaultVolumeCurve // DEVICE_CATEGORY_EARPIECE
2664 { // AUDIO_STREAM_BLUETOOTH_SCO
2665 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET
2666 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER
2667 sDefaultVoiceVolumeCurve // DEVICE_CATEGORY_EARPIECE
2669 { // AUDIO_STREAM_ENFORCED_AUDIBLE
2670 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET
2671 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER
2672 sDefaultSystemVolumeCurve // DEVICE_CATEGORY_EARPIECE
2674 { // AUDIO_STREAM_DTMF
2675 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET
2676 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER
2677 sDefaultSystemVolumeCurve // DEVICE_CATEGORY_EARPIECE
2679 { // AUDIO_STREAM_TTS
2680 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET
2681 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER
2682 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EARPIECE
2686 void AudioPolicyManagerBase::initializeVolumeCurves()
2688 for (int i = 0; i < AUDIO_STREAM_CNT; i++) {
2689 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) {
2690 mStreams[i].mVolumeCurve[j] =
2691 sVolumeProfiles[i][j];
2696 float AudioPolicyManagerBase::computeVolume(int stream,
2698 audio_io_handle_t output,
2699 audio_devices_t device)
2702 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
2703 StreamDescriptor &streamDesc = mStreams[stream];
2705 if (device == AUDIO_DEVICE_NONE) {
2706 device = outputDesc->device();
2709 // if volume is not 0 (not muted), force media volume to max on digital output
2710 if (stream == AudioSystem::MUSIC &&
2711 index != mStreams[stream].mIndexMin &&
2712 (device == AUDIO_DEVICE_OUT_AUX_DIGITAL ||
2713 device == AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET ||
2714 device == AUDIO_DEVICE_OUT_USB_ACCESSORY ||
2715 device == AUDIO_DEVICE_OUT_USB_DEVICE)) {
2719 volume = volIndexToAmpl(device, streamDesc, index);
2721 // if a headset is connected, apply the following rules to ring tones and notifications
2722 // to avoid sound level bursts in user's ears:
2723 // - always attenuate ring tones and notifications volume by 6dB
2724 // - if music is playing, always limit the volume to current music volume,
2725 // with a minimum threshold at -36dB so that notification is always perceived.
2726 const routing_strategy stream_strategy = getStrategy((AudioSystem::stream_type)stream);
2727 if ((device & (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP |
2728 AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES |
2729 AUDIO_DEVICE_OUT_WIRED_HEADSET |
2730 AUDIO_DEVICE_OUT_WIRED_HEADPHONE)) &&
2731 ((stream_strategy == STRATEGY_SONIFICATION)
2732 || (stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL)
2733 || (stream == AudioSystem::SYSTEM)
2734 || ((stream_strategy == STRATEGY_ENFORCED_AUDIBLE) &&
2735 (mForceUse[AudioSystem::FOR_SYSTEM] == AudioSystem::FORCE_NONE))) &&
2736 streamDesc.mCanBeMuted) {
2737 volume *= SONIFICATION_HEADSET_VOLUME_FACTOR;
2738 // when the phone is ringing we must consider that music could have been paused just before
2739 // by the music application and behave as if music was active if the last music track was
2741 if (isStreamActive(AudioSystem::MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY) ||
2742 mLimitRingtoneVolume) {
2743 audio_devices_t musicDevice = getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/);
2744 float musicVol = computeVolume(AudioSystem::MUSIC,
2745 mStreams[AudioSystem::MUSIC].getVolumeIndex(musicDevice),
2748 float minVol = (musicVol > SONIFICATION_HEADSET_VOLUME_MIN) ?
2749 musicVol : SONIFICATION_HEADSET_VOLUME_MIN;
2750 if (volume > minVol) {
2752 ALOGV("computeVolume limiting volume to %f musicVol %f", minVol, musicVol);
2760 status_t AudioPolicyManagerBase::checkAndSetVolume(int stream,
2762 audio_io_handle_t output,
2763 audio_devices_t device,
2768 // do not change actual stream volume if the stream is muted
2769 if (mOutputs.valueFor(output)->mMuteCount[stream] != 0) {
2770 ALOGVV("checkAndSetVolume() stream %d muted count %d",
2771 stream, mOutputs.valueFor(output)->mMuteCount[stream]);
2775 // do not change in call volume if bluetooth is connected and vice versa
2776 if ((stream == AudioSystem::VOICE_CALL && mForceUse[AudioSystem::FOR_COMMUNICATION] == AudioSystem::FORCE_BT_SCO) ||
2777 (stream == AudioSystem::BLUETOOTH_SCO && mForceUse[AudioSystem::FOR_COMMUNICATION] != AudioSystem::FORCE_BT_SCO)) {
2778 ALOGV("checkAndSetVolume() cannot set stream %d volume with force use = %d for comm",
2779 stream, mForceUse[AudioSystem::FOR_COMMUNICATION]);
2780 return INVALID_OPERATION;
2783 float volume = computeVolume(stream, index, output, device);
2784 // We actually change the volume if:
2785 // - the float value returned by computeVolume() changed
2786 // - the force flag is set
2787 if (volume != mOutputs.valueFor(output)->mCurVolume[stream] ||
2789 mOutputs.valueFor(output)->mCurVolume[stream] = volume;
2790 ALOGVV("checkAndSetVolume() for output %d stream %d, volume %f, delay %d", output, stream, volume, delayMs);
2791 // Force VOICE_CALL to track BLUETOOTH_SCO stream volume when bluetooth audio is
2793 if (stream == AudioSystem::BLUETOOTH_SCO) {
2794 mpClientInterface->setStreamVolume(AudioSystem::VOICE_CALL, volume, output, delayMs);
2796 mpClientInterface->setStreamVolume((AudioSystem::stream_type)stream, volume, output, delayMs);
2799 if (stream == AudioSystem::VOICE_CALL ||
2800 stream == AudioSystem::BLUETOOTH_SCO) {
2802 // Force voice volume to max for bluetooth SCO as volume is managed by the headset
2803 if (stream == AudioSystem::VOICE_CALL) {
2804 voiceVolume = (float)index/(float)mStreams[stream].mIndexMax;
2809 if (voiceVolume != mLastVoiceVolume && output == mPrimaryOutput) {
2810 mpClientInterface->setVoiceVolume(voiceVolume, delayMs);
2811 mLastVoiceVolume = voiceVolume;
2818 void AudioPolicyManagerBase::applyStreamVolumes(audio_io_handle_t output,
2819 audio_devices_t device,
2823 ALOGVV("applyStreamVolumes() for output %d and device %x", output, device);
2825 for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) {
2826 checkAndSetVolume(stream,
2827 mStreams[stream].getVolumeIndex(device),
2835 void AudioPolicyManagerBase::setStrategyMute(routing_strategy strategy,
2837 audio_io_handle_t output,
2839 audio_devices_t device)
2841 ALOGVV("setStrategyMute() strategy %d, mute %d, output %d", strategy, on, output);
2842 for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) {
2843 if (getStrategy((AudioSystem::stream_type)stream) == strategy) {
2844 setStreamMute(stream, on, output, delayMs, device);
2849 void AudioPolicyManagerBase::setStreamMute(int stream,
2851 audio_io_handle_t output,
2853 audio_devices_t device)
2855 StreamDescriptor &streamDesc = mStreams[stream];
2856 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
2857 if (device == AUDIO_DEVICE_NONE) {
2858 device = outputDesc->device();
2861 ALOGVV("setStreamMute() stream %d, mute %d, output %d, mMuteCount %d device %04x",
2862 stream, on, output, outputDesc->mMuteCount[stream], device);
2865 if (outputDesc->mMuteCount[stream] == 0) {
2866 if (streamDesc.mCanBeMuted &&
2867 ((stream != AudioSystem::ENFORCED_AUDIBLE) ||
2868 (mForceUse[AudioSystem::FOR_SYSTEM] == AudioSystem::FORCE_NONE))) {
2869 checkAndSetVolume(stream, 0, output, device, delayMs);
2872 // increment mMuteCount after calling checkAndSetVolume() so that volume change is not ignored
2873 outputDesc->mMuteCount[stream]++;
2875 if (outputDesc->mMuteCount[stream] == 0) {
2876 ALOGV("setStreamMute() unmuting non muted stream!");
2879 if (--outputDesc->mMuteCount[stream] == 0) {
2880 checkAndSetVolume(stream,
2881 streamDesc.getVolumeIndex(device),
2889 void AudioPolicyManagerBase::handleIncallSonification(int stream, bool starting, bool stateChange)
2891 // if the stream pertains to sonification strategy and we are in call we must
2892 // mute the stream if it is low visibility. If it is high visibility, we must play a tone
2893 // in the device used for phone strategy and play the tone if the selected device does not
2894 // interfere with the device used for phone strategy
2895 // if stateChange is true, we are called from setPhoneState() and we must mute or unmute as
2896 // many times as there are active tracks on the output
2897 const routing_strategy stream_strategy = getStrategy((AudioSystem::stream_type)stream);
2898 if ((stream_strategy == STRATEGY_SONIFICATION) ||
2899 ((stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL))) {
2900 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(mPrimaryOutput);
2901 ALOGV("handleIncallSonification() stream %d starting %d device %x stateChange %d",
2902 stream, starting, outputDesc->mDevice, stateChange);
2903 if (outputDesc->mRefCount[stream]) {
2906 muteCount = outputDesc->mRefCount[stream];
2908 if (AudioSystem::isLowVisibility((AudioSystem::stream_type)stream)) {
2909 ALOGV("handleIncallSonification() low visibility, muteCount %d", muteCount);
2910 for (int i = 0; i < muteCount; i++) {
2911 setStreamMute(stream, starting, mPrimaryOutput);
2914 ALOGV("handleIncallSonification() high visibility");
2915 if (outputDesc->device() &
2916 getDeviceForStrategy(STRATEGY_PHONE, true /*fromCache*/)) {
2917 ALOGV("handleIncallSonification() high visibility muted, muteCount %d", muteCount);
2918 for (int i = 0; i < muteCount; i++) {
2919 setStreamMute(stream, starting, mPrimaryOutput);
2923 mpClientInterface->startTone(ToneGenerator::TONE_SUP_CALL_WAITING, AudioSystem::VOICE_CALL);
2925 mpClientInterface->stopTone();
2932 bool AudioPolicyManagerBase::isInCall()
2934 return isStateInCall(mPhoneState);
2937 bool AudioPolicyManagerBase::isStateInCall(int state) {
2938 return ((state == AudioSystem::MODE_IN_CALL) ||
2939 (state == AudioSystem::MODE_IN_COMMUNICATION));
2942 bool AudioPolicyManagerBase::needsDirectOuput(audio_stream_type_t stream,
2943 uint32_t samplingRate,
2944 audio_format_t format,
2945 audio_channel_mask_t channelMask,
2946 audio_output_flags_t flags,
2947 audio_devices_t device)
2949 return ((flags & AudioSystem::OUTPUT_FLAG_DIRECT) ||
2950 (format != 0 && !AudioSystem::isLinearPCM(format)));
2953 uint32_t AudioPolicyManagerBase::getMaxEffectsCpuLoad()
2955 return MAX_EFFECTS_CPU_LOAD;
2958 uint32_t AudioPolicyManagerBase::getMaxEffectsMemory()
2960 return MAX_EFFECTS_MEMORY;
2963 // --- AudioOutputDescriptor class implementation
2965 AudioPolicyManagerBase::AudioOutputDescriptor::AudioOutputDescriptor(
2966 const IOProfile *profile)
2967 : mId(0), mSamplingRate(0), mFormat((audio_format_t)0),
2968 mChannelMask((audio_channel_mask_t)0), mLatency(0),
2969 mFlags((audio_output_flags_t)0), mDevice(AUDIO_DEVICE_NONE),
2970 mOutput1(0), mOutput2(0), mProfile(profile)
2972 // clear usage count for all stream types
2973 for (int i = 0; i < AudioSystem::NUM_STREAM_TYPES; i++) {
2975 mCurVolume[i] = -1.0;
2979 for (int i = 0; i < NUM_STRATEGIES; i++) {
2980 mStrategyMutedByDevice[i] = false;
2982 if (profile != NULL) {
2983 mSamplingRate = profile->mSamplingRates[0];
2984 mFormat = profile->mFormats[0];
2985 mChannelMask = profile->mChannelMasks[0];
2986 mFlags = profile->mFlags;
2990 audio_devices_t AudioPolicyManagerBase::AudioOutputDescriptor::device()
2992 if (isDuplicated()) {
2993 return (audio_devices_t)(mOutput1->mDevice | mOutput2->mDevice);
2999 uint32_t AudioPolicyManagerBase::AudioOutputDescriptor::latency()
3001 if (isDuplicated()) {
3002 return (mOutput1->mLatency > mOutput2->mLatency) ? mOutput1->mLatency : mOutput2->mLatency;
3008 bool AudioPolicyManagerBase::AudioOutputDescriptor::sharesHwModuleWith(
3009 const AudioOutputDescriptor *outputDesc)
3011 if (isDuplicated()) {
3012 return mOutput1->sharesHwModuleWith(outputDesc) || mOutput2->sharesHwModuleWith(outputDesc);
3013 } else if (outputDesc->isDuplicated()){
3014 return sharesHwModuleWith(outputDesc->mOutput1) || sharesHwModuleWith(outputDesc->mOutput2);
3016 return (mProfile->mModule == outputDesc->mProfile->mModule);
3020 void AudioPolicyManagerBase::AudioOutputDescriptor::changeRefCount(AudioSystem::stream_type stream, int delta)
3022 // forward usage count change to attached outputs
3023 if (isDuplicated()) {
3024 mOutput1->changeRefCount(stream, delta);
3025 mOutput2->changeRefCount(stream, delta);
3027 if ((delta + (int)mRefCount[stream]) < 0) {
3028 ALOGW("changeRefCount() invalid delta %d for stream %d, refCount %d", delta, stream, mRefCount[stream]);
3029 mRefCount[stream] = 0;
3032 mRefCount[stream] += delta;
3033 ALOGV("changeRefCount() stream %d, count %d", stream, mRefCount[stream]);
3036 uint32_t AudioPolicyManagerBase::AudioOutputDescriptor::refCount()
3038 uint32_t refcount = 0;
3039 for (int i = 0; i < (int)AudioSystem::NUM_STREAM_TYPES; i++) {
3040 refcount += mRefCount[i];
3045 uint32_t AudioPolicyManagerBase::AudioOutputDescriptor::strategyRefCount(routing_strategy strategy)
3047 uint32_t refCount = 0;
3048 for (int i = 0; i < (int)AudioSystem::NUM_STREAM_TYPES; i++) {
3049 if (getStrategy((AudioSystem::stream_type)i) == strategy) {
3050 refCount += mRefCount[i];
3056 audio_devices_t AudioPolicyManagerBase::AudioOutputDescriptor::supportedDevices()
3058 if (isDuplicated()) {
3059 return (audio_devices_t)(mOutput1->supportedDevices() | mOutput2->supportedDevices());
3061 return mProfile->mSupportedDevices ;
3065 status_t AudioPolicyManagerBase::AudioOutputDescriptor::dump(int fd)
3067 const size_t SIZE = 256;
3071 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate);
3072 result.append(buffer);
3073 snprintf(buffer, SIZE, " Format: %d\n", mFormat);
3074 result.append(buffer);
3075 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask);
3076 result.append(buffer);
3077 snprintf(buffer, SIZE, " Latency: %d\n", mLatency);
3078 result.append(buffer);
3079 snprintf(buffer, SIZE, " Flags %08x\n", mFlags);
3080 result.append(buffer);
3081 snprintf(buffer, SIZE, " Devices %08x\n", device());
3082 result.append(buffer);
3083 snprintf(buffer, SIZE, " Stream volume refCount muteCount\n");
3084 result.append(buffer);
3085 for (int i = 0; i < AudioSystem::NUM_STREAM_TYPES; i++) {
3086 snprintf(buffer, SIZE, " %02d %.03f %02d %02d\n", i, mCurVolume[i], mRefCount[i], mMuteCount[i]);
3087 result.append(buffer);
3089 write(fd, result.string(), result.size());
3094 // --- AudioInputDescriptor class implementation
3096 AudioPolicyManagerBase::AudioInputDescriptor::AudioInputDescriptor(const IOProfile *profile)
3097 : mSamplingRate(0), mFormat((audio_format_t)0), mChannelMask((audio_channel_mask_t)0),
3098 mDevice(AUDIO_DEVICE_NONE), mRefCount(0),
3099 mInputSource(0), mProfile(profile)
3103 status_t AudioPolicyManagerBase::AudioInputDescriptor::dump(int fd)
3105 const size_t SIZE = 256;
3109 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate);
3110 result.append(buffer);
3111 snprintf(buffer, SIZE, " Format: %d\n", mFormat);
3112 result.append(buffer);
3113 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask);
3114 result.append(buffer);
3115 snprintf(buffer, SIZE, " Devices %08x\n", mDevice);
3116 result.append(buffer);
3117 snprintf(buffer, SIZE, " Ref Count %d\n", mRefCount);
3118 result.append(buffer);
3119 write(fd, result.string(), result.size());
3124 // --- StreamDescriptor class implementation
3126 AudioPolicyManagerBase::StreamDescriptor::StreamDescriptor()
3127 : mIndexMin(0), mIndexMax(1), mCanBeMuted(true)
3129 mIndexCur.add(AUDIO_DEVICE_OUT_DEFAULT, 0);
3132 int AudioPolicyManagerBase::StreamDescriptor::getVolumeIndex(audio_devices_t device)
3134 device = AudioPolicyManagerBase::getDeviceForVolume(device);
3135 // there is always a valid entry for AUDIO_DEVICE_OUT_DEFAULT
3136 if (mIndexCur.indexOfKey(device) < 0) {
3137 device = AUDIO_DEVICE_OUT_DEFAULT;
3139 return mIndexCur.valueFor(device);
3142 void AudioPolicyManagerBase::StreamDescriptor::dump(int fd)
3144 const size_t SIZE = 256;
3148 snprintf(buffer, SIZE, "%s %02d %02d ",
3149 mCanBeMuted ? "true " : "false", mIndexMin, mIndexMax);
3150 result.append(buffer);
3151 for (size_t i = 0; i < mIndexCur.size(); i++) {
3152 snprintf(buffer, SIZE, "%04x : %02d, ",
3154 mIndexCur.valueAt(i));
3155 result.append(buffer);
3157 result.append("\n");
3159 write(fd, result.string(), result.size());
3162 // --- EffectDescriptor class implementation
3164 status_t AudioPolicyManagerBase::EffectDescriptor::dump(int fd)
3166 const size_t SIZE = 256;
3170 snprintf(buffer, SIZE, " I/O: %d\n", mIo);
3171 result.append(buffer);
3172 snprintf(buffer, SIZE, " Strategy: %d\n", mStrategy);
3173 result.append(buffer);
3174 snprintf(buffer, SIZE, " Session: %d\n", mSession);
3175 result.append(buffer);
3176 snprintf(buffer, SIZE, " Name: %s\n", mDesc.name);
3177 result.append(buffer);
3178 snprintf(buffer, SIZE, " %s\n", mEnabled ? "Enabled" : "Disabled");
3179 result.append(buffer);
3180 write(fd, result.string(), result.size());
3185 // --- IOProfile class implementation
3187 AudioPolicyManagerBase::HwModule::HwModule(const char *name)
3188 : mName(strndup(name, AUDIO_HARDWARE_MODULE_ID_MAX_LEN)), mHandle(0)
3192 AudioPolicyManagerBase::HwModule::~HwModule()
3194 for (size_t i = 0; i < mOutputProfiles.size(); i++) {
3195 delete mOutputProfiles[i];
3197 for (size_t i = 0; i < mInputProfiles.size(); i++) {
3198 delete mInputProfiles[i];
3200 free((void *)mName);
3203 void AudioPolicyManagerBase::HwModule::dump(int fd)
3205 const size_t SIZE = 256;
3209 snprintf(buffer, SIZE, " - name: %s\n", mName);
3210 result.append(buffer);
3211 snprintf(buffer, SIZE, " - handle: %d\n", mHandle);
3212 result.append(buffer);
3213 write(fd, result.string(), result.size());
3214 if (mOutputProfiles.size()) {
3215 write(fd, " - outputs:\n", sizeof(" - outputs:\n"));
3216 for (size_t i = 0; i < mOutputProfiles.size(); i++) {
3217 snprintf(buffer, SIZE, " output %d:\n", i);
3218 write(fd, buffer, strlen(buffer));
3219 mOutputProfiles[i]->dump(fd);
3222 if (mInputProfiles.size()) {
3223 write(fd, " - inputs:\n", sizeof(" - inputs:\n"));
3224 for (size_t i = 0; i < mInputProfiles.size(); i++) {
3225 snprintf(buffer, SIZE, " input %d:\n", i);
3226 write(fd, buffer, strlen(buffer));
3227 mInputProfiles[i]->dump(fd);
3232 AudioPolicyManagerBase::IOProfile::IOProfile(HwModule *module)
3233 : mFlags((audio_output_flags_t)0), mModule(module)
3237 AudioPolicyManagerBase::IOProfile::~IOProfile()
3241 // checks if the IO profile is compatible with specified parameters. By convention a value of 0
3242 // means a parameter is don't care
3243 bool AudioPolicyManagerBase::IOProfile::isCompatibleProfile(audio_devices_t device,
3244 uint32_t samplingRate,
3246 uint32_t channelMask,
3247 audio_output_flags_t flags) const
3249 if ((mSupportedDevices & device) != device) {
3252 if ((mFlags & flags) != flags) {
3255 if (samplingRate != 0) {
3257 for (i = 0; i < mSamplingRates.size(); i++)
3259 if (mSamplingRates[i] == samplingRate) {
3263 if (i == mSamplingRates.size()) {
3269 for (i = 0; i < mFormats.size(); i++)
3271 if (mFormats[i] == format) {
3275 if (i == mFormats.size()) {
3279 if (channelMask != 0) {
3281 for (i = 0; i < mChannelMasks.size(); i++)
3283 if (mChannelMasks[i] == channelMask) {
3287 if (i == mChannelMasks.size()) {
3294 void AudioPolicyManagerBase::IOProfile::dump(int fd)
3296 const size_t SIZE = 256;
3300 snprintf(buffer, SIZE, " - sampling rates: ");
3301 result.append(buffer);
3302 for (size_t i = 0; i < mSamplingRates.size(); i++) {
3303 snprintf(buffer, SIZE, "%d", mSamplingRates[i]);
3304 result.append(buffer);
3305 result.append(i == (mSamplingRates.size() - 1) ? "\n" : ", ");
3308 snprintf(buffer, SIZE, " - channel masks: ");
3309 result.append(buffer);
3310 for (size_t i = 0; i < mChannelMasks.size(); i++) {
3311 snprintf(buffer, SIZE, "%04x", mChannelMasks[i]);
3312 result.append(buffer);
3313 result.append(i == (mChannelMasks.size() - 1) ? "\n" : ", ");
3316 snprintf(buffer, SIZE, " - formats: ");
3317 result.append(buffer);
3318 for (size_t i = 0; i < mFormats.size(); i++) {
3319 snprintf(buffer, SIZE, "%d", mFormats[i]);
3320 result.append(buffer);
3321 result.append(i == (mFormats.size() - 1) ? "\n" : ", ");
3324 snprintf(buffer, SIZE, " - devices: %04x\n", mSupportedDevices);
3325 result.append(buffer);
3326 snprintf(buffer, SIZE, " - flags: %04x\n", mFlags);
3327 result.append(buffer);
3329 write(fd, result.string(), result.size());
3332 // --- audio_policy.conf file parsing
3334 struct StringToEnum {
3339 #define STRING_TO_ENUM(string) { #string, string }
3340 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
3342 const struct StringToEnum sDeviceNameToEnumTable[] = {
3343 STRING_TO_ENUM(AUDIO_DEVICE_OUT_EARPIECE),
3344 STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPEAKER),
3345 STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADSET),
3346 STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADPHONE),
3347 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_SCO),
3348 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_A2DP),
3349 STRING_TO_ENUM(AUDIO_DEVICE_OUT_AUX_DIGITAL),
3350 STRING_TO_ENUM(AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET),
3351 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET),
3352 STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_DEVICE),
3353 STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_ACCESSORY),
3354 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_USB),
3355 STRING_TO_ENUM(AUDIO_DEVICE_OUT_REMOTE_SUBMIX),
3356 STRING_TO_ENUM(AUDIO_DEVICE_IN_BUILTIN_MIC),
3357 STRING_TO_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET),
3358 STRING_TO_ENUM(AUDIO_DEVICE_IN_WIRED_HEADSET),
3359 STRING_TO_ENUM(AUDIO_DEVICE_IN_AUX_DIGITAL),
3360 STRING_TO_ENUM(AUDIO_DEVICE_IN_VOICE_CALL),
3361 STRING_TO_ENUM(AUDIO_DEVICE_IN_BACK_MIC),
3362 STRING_TO_ENUM(AUDIO_DEVICE_IN_REMOTE_SUBMIX),
3363 STRING_TO_ENUM(AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET),
3364 STRING_TO_ENUM(AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET),
3365 STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_ACCESSORY),
3368 const struct StringToEnum sFlagNameToEnumTable[] = {
3369 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DIRECT),
3370 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_PRIMARY),
3371 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_FAST),
3372 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DEEP_BUFFER),
3375 const struct StringToEnum sFormatNameToEnumTable[] = {
3376 STRING_TO_ENUM(AUDIO_FORMAT_PCM_16_BIT),
3377 STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_BIT),
3378 STRING_TO_ENUM(AUDIO_FORMAT_MP3),
3379 STRING_TO_ENUM(AUDIO_FORMAT_AAC),
3380 STRING_TO_ENUM(AUDIO_FORMAT_VORBIS),
3383 const struct StringToEnum sOutChannelsNameToEnumTable[] = {
3384 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_MONO),
3385 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_STEREO),
3386 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_5POINT1),
3387 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_7POINT1),
3390 const struct StringToEnum sInChannelsNameToEnumTable[] = {
3391 STRING_TO_ENUM(AUDIO_CHANNEL_IN_MONO),
3392 STRING_TO_ENUM(AUDIO_CHANNEL_IN_STEREO),
3396 uint32_t AudioPolicyManagerBase::stringToEnum(const struct StringToEnum *table,
3400 for (size_t i = 0; i < size; i++) {
3401 if (strcmp(table[i].name, name) == 0) {
3402 ALOGV("stringToEnum() found %s", table[i].name);
3403 return table[i].value;
3409 audio_output_flags_t AudioPolicyManagerBase::parseFlagNames(char *name)
3413 // it is OK to cast name to non const here as we are not going to use it after
3414 // strtok() modifies it
3415 char *flagName = strtok(name, "|");
3416 while (flagName != NULL) {
3417 if (strlen(flagName) != 0) {
3418 flag |= stringToEnum(sFlagNameToEnumTable,
3419 ARRAY_SIZE(sFlagNameToEnumTable),
3422 flagName = strtok(NULL, "|");
3424 return (audio_output_flags_t)flag;
3427 audio_devices_t AudioPolicyManagerBase::parseDeviceNames(char *name)
3429 uint32_t device = 0;
3431 char *devName = strtok(name, "|");
3432 while (devName != NULL) {
3433 if (strlen(devName) != 0) {
3434 device |= stringToEnum(sDeviceNameToEnumTable,
3435 ARRAY_SIZE(sDeviceNameToEnumTable),
3438 devName = strtok(NULL, "|");
3443 void AudioPolicyManagerBase::loadSamplingRates(char *name, IOProfile *profile)
3445 char *str = strtok(name, "|");
3447 // by convention, "0' in the first entry in mSamplingRates indicates the supported sampling
3448 // rates should be read from the output stream after it is opened for the first time
3449 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) {
3450 profile->mSamplingRates.add(0);
3454 while (str != NULL) {
3455 uint32_t rate = atoi(str);
3457 ALOGV("loadSamplingRates() adding rate %d", rate);
3458 profile->mSamplingRates.add(rate);
3460 str = strtok(NULL, "|");
3465 void AudioPolicyManagerBase::loadFormats(char *name, IOProfile *profile)
3467 char *str = strtok(name, "|");
3469 // by convention, "0' in the first entry in mFormats indicates the supported formats
3470 // should be read from the output stream after it is opened for the first time
3471 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) {
3472 profile->mFormats.add((audio_format_t)0);
3476 while (str != NULL) {
3477 audio_format_t format = (audio_format_t)stringToEnum(sFormatNameToEnumTable,
3478 ARRAY_SIZE(sFormatNameToEnumTable),
3481 profile->mFormats.add(format);
3483 str = strtok(NULL, "|");
3488 void AudioPolicyManagerBase::loadInChannels(char *name, IOProfile *profile)
3490 const char *str = strtok(name, "|");
3492 ALOGV("loadInChannels() %s", name);
3494 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) {
3495 profile->mChannelMasks.add((audio_channel_mask_t)0);
3499 while (str != NULL) {
3500 audio_channel_mask_t channelMask =
3501 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable,
3502 ARRAY_SIZE(sInChannelsNameToEnumTable),
3504 if (channelMask != 0) {
3505 ALOGV("loadInChannels() adding channelMask %04x", channelMask);
3506 profile->mChannelMasks.add(channelMask);
3508 str = strtok(NULL, "|");
3513 void AudioPolicyManagerBase::loadOutChannels(char *name, IOProfile *profile)
3515 const char *str = strtok(name, "|");
3517 ALOGV("loadOutChannels() %s", name);
3519 // by convention, "0' in the first entry in mChannelMasks indicates the supported channel
3520 // masks should be read from the output stream after it is opened for the first time
3521 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) {
3522 profile->mChannelMasks.add((audio_channel_mask_t)0);
3526 while (str != NULL) {
3527 audio_channel_mask_t channelMask =
3528 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable,
3529 ARRAY_SIZE(sOutChannelsNameToEnumTable),
3531 if (channelMask != 0) {
3532 profile->mChannelMasks.add(channelMask);
3534 str = strtok(NULL, "|");
3539 status_t AudioPolicyManagerBase::loadInput(cnode *root, HwModule *module)
3541 cnode *node = root->first_child;
3543 IOProfile *profile = new IOProfile(module);
3546 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) {
3547 loadSamplingRates((char *)node->value, profile);
3548 } else if (strcmp(node->name, FORMATS_TAG) == 0) {
3549 loadFormats((char *)node->value, profile);
3550 } else if (strcmp(node->name, CHANNELS_TAG) == 0) {
3551 loadInChannels((char *)node->value, profile);
3552 } else if (strcmp(node->name, DEVICES_TAG) == 0) {
3553 profile->mSupportedDevices = parseDeviceNames((char *)node->value);
3557 ALOGW_IF(profile->mSupportedDevices == AUDIO_DEVICE_NONE,
3558 "loadInput() invalid supported devices");
3559 ALOGW_IF(profile->mChannelMasks.size() == 0,
3560 "loadInput() invalid supported channel masks");
3561 ALOGW_IF(profile->mSamplingRates.size() == 0,
3562 "loadInput() invalid supported sampling rates");
3563 ALOGW_IF(profile->mFormats.size() == 0,
3564 "loadInput() invalid supported formats");
3565 if ((profile->mSupportedDevices != AUDIO_DEVICE_NONE) &&
3566 (profile->mChannelMasks.size() != 0) &&
3567 (profile->mSamplingRates.size() != 0) &&
3568 (profile->mFormats.size() != 0)) {
3570 ALOGV("loadInput() adding input mSupportedDevices %04x", profile->mSupportedDevices);
3572 module->mInputProfiles.add(profile);
3580 status_t AudioPolicyManagerBase::loadOutput(cnode *root, HwModule *module)
3582 cnode *node = root->first_child;
3584 IOProfile *profile = new IOProfile(module);
3587 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) {
3588 loadSamplingRates((char *)node->value, profile);
3589 } else if (strcmp(node->name, FORMATS_TAG) == 0) {
3590 loadFormats((char *)node->value, profile);
3591 } else if (strcmp(node->name, CHANNELS_TAG) == 0) {
3592 loadOutChannels((char *)node->value, profile);
3593 } else if (strcmp(node->name, DEVICES_TAG) == 0) {
3594 profile->mSupportedDevices = parseDeviceNames((char *)node->value);
3595 } else if (strcmp(node->name, FLAGS_TAG) == 0) {
3596 profile->mFlags = parseFlagNames((char *)node->value);
3600 ALOGW_IF(profile->mSupportedDevices == AUDIO_DEVICE_NONE,
3601 "loadOutput() invalid supported devices");
3602 ALOGW_IF(profile->mChannelMasks.size() == 0,
3603 "loadOutput() invalid supported channel masks");
3604 ALOGW_IF(profile->mSamplingRates.size() == 0,
3605 "loadOutput() invalid supported sampling rates");
3606 ALOGW_IF(profile->mFormats.size() == 0,
3607 "loadOutput() invalid supported formats");
3608 if ((profile->mSupportedDevices != AUDIO_DEVICE_NONE) &&
3609 (profile->mChannelMasks.size() != 0) &&
3610 (profile->mSamplingRates.size() != 0) &&
3611 (profile->mFormats.size() != 0)) {
3613 ALOGV("loadOutput() adding output mSupportedDevices %04x, mFlags %04x",
3614 profile->mSupportedDevices, profile->mFlags);
3616 module->mOutputProfiles.add(profile);
3624 void AudioPolicyManagerBase::loadHwModule(cnode *root)
3626 cnode *node = config_find(root, OUTPUTS_TAG);
3627 status_t status = NAME_NOT_FOUND;
3629 HwModule *module = new HwModule(root->name);
3632 if (strcmp(root->name, AUDIO_HARDWARE_MODULE_ID_A2DP) == 0) {
3634 } else if (strcmp(root->name, AUDIO_HARDWARE_MODULE_ID_USB) == 0) {
3636 } else if (strcmp(root->name, AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX) == 0) {
3637 mHasRemoteSubmix = true;
3640 node = node->first_child;
3642 ALOGV("loadHwModule() loading output %s", node->name);
3643 status_t tmpStatus = loadOutput(node, module);
3644 if (status == NAME_NOT_FOUND || status == NO_ERROR) {
3650 node = config_find(root, INPUTS_TAG);
3652 node = node->first_child;
3654 ALOGV("loadHwModule() loading input %s", node->name);
3655 status_t tmpStatus = loadInput(node, module);
3656 if (status == NAME_NOT_FOUND || status == NO_ERROR) {
3662 if (status == NO_ERROR) {
3663 mHwModules.add(module);
3669 void AudioPolicyManagerBase::loadHwModules(cnode *root)
3671 cnode *node = config_find(root, AUDIO_HW_MODULE_TAG);
3676 node = node->first_child;
3678 ALOGV("loadHwModules() loading module %s", node->name);
3684 void AudioPolicyManagerBase::loadGlobalConfig(cnode *root)
3686 cnode *node = config_find(root, GLOBAL_CONFIG_TAG);
3690 node = node->first_child;
3692 if (strcmp(ATTACHED_OUTPUT_DEVICES_TAG, node->name) == 0) {
3693 mAttachedOutputDevices = parseDeviceNames((char *)node->value);
3694 ALOGW_IF(mAttachedOutputDevices == AUDIO_DEVICE_NONE,
3695 "loadGlobalConfig() no attached output devices");
3696 ALOGV("loadGlobalConfig() mAttachedOutputDevices %04x", mAttachedOutputDevices);
3697 } else if (strcmp(DEFAULT_OUTPUT_DEVICE_TAG, node->name) == 0) {
3698 mDefaultOutputDevice = (audio_devices_t)stringToEnum(sDeviceNameToEnumTable,
3699 ARRAY_SIZE(sDeviceNameToEnumTable),
3700 (char *)node->value);
3701 ALOGW_IF(mDefaultOutputDevice == AUDIO_DEVICE_NONE,
3702 "loadGlobalConfig() default device not specified");
3703 ALOGV("loadGlobalConfig() mDefaultOutputDevice %04x", mDefaultOutputDevice);
3704 } else if (strcmp(ATTACHED_INPUT_DEVICES_TAG, node->name) == 0) {
3705 mAvailableInputDevices = parseDeviceNames((char *)node->value) & ~AUDIO_DEVICE_BIT_IN;
3706 ALOGV("loadGlobalConfig() mAvailableInputDevices %04x", mAvailableInputDevices);
3712 status_t AudioPolicyManagerBase::loadAudioPolicyConfig(const char *path)
3717 data = (char *)load_file(path, NULL);
3721 root = config_node("", "");
3722 config_load(root, data);
3724 loadGlobalConfig(root);
3725 loadHwModules(root);
3731 ALOGI("loadAudioPolicyConfig() loaded %s\n", path);
3736 void AudioPolicyManagerBase::defaultAudioPolicyConfig(void)
3741 mDefaultOutputDevice = AUDIO_DEVICE_OUT_SPEAKER;
3742 mAttachedOutputDevices = AUDIO_DEVICE_OUT_SPEAKER;
3743 mAvailableInputDevices = AUDIO_DEVICE_IN_BUILTIN_MIC & ~AUDIO_DEVICE_BIT_IN;
3745 module = new HwModule("primary");
3747 profile = new IOProfile(module);
3748 profile->mSamplingRates.add(44100);
3749 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT);
3750 profile->mChannelMasks.add(AUDIO_CHANNEL_OUT_STEREO);
3751 profile->mSupportedDevices = AUDIO_DEVICE_OUT_SPEAKER;
3752 profile->mFlags = AUDIO_OUTPUT_FLAG_PRIMARY;
3753 module->mOutputProfiles.add(profile);
3755 profile = new IOProfile(module);
3756 profile->mSamplingRates.add(8000);
3757 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT);
3758 profile->mChannelMasks.add(AUDIO_CHANNEL_IN_MONO);
3759 profile->mSupportedDevices = AUDIO_DEVICE_IN_BUILTIN_MIC;
3760 module->mInputProfiles.add(profile);
3762 mHwModules.add(module);
3765 }; // namespace android