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");
1677 addOutput(output, desc);
1680 audio_io_handle_t duplicatedOutput = 0;
1681 // add output descriptor
1682 addOutput(output, desc);
1683 // set initial stream volume for device
1684 applyStreamVolumes(output, device, 0, true);
1686 //TODO: configure audio effect output stage here
1688 // open a duplicating output thread for the new output and the primary output
1689 duplicatedOutput = mpClientInterface->openDuplicateOutput(output,
1691 if (duplicatedOutput != 0) {
1692 // add duplicated output descriptor
1693 AudioOutputDescriptor *dupOutputDesc = new AudioOutputDescriptor(NULL);
1694 dupOutputDesc->mOutput1 = mOutputs.valueFor(mPrimaryOutput);
1695 dupOutputDesc->mOutput2 = mOutputs.valueFor(output);
1696 dupOutputDesc->mSamplingRate = desc->mSamplingRate;
1697 dupOutputDesc->mFormat = desc->mFormat;
1698 dupOutputDesc->mChannelMask = desc->mChannelMask;
1699 dupOutputDesc->mLatency = desc->mLatency;
1700 addOutput(duplicatedOutput, dupOutputDesc);
1701 applyStreamVolumes(duplicatedOutput, device, 0, true);
1703 ALOGW("checkOutputsForDevice() could not open dup output for %d and %d",
1704 mPrimaryOutput, output);
1705 mpClientInterface->closeOutput(output);
1706 mOutputs.removeItem(output);
1712 ALOGW("checkOutputsForDevice() could not open output for device %x", device);
1714 profiles.removeAt(profile_index);
1717 outputs.add(output);
1718 ALOGV("checkOutputsForDevice(): adding output %d", output);
1722 if (profiles.isEmpty()) {
1723 ALOGW("checkOutputsForDevice(): No output available for device %04x", device);
1727 // check if one opened output is not needed any more after disconnecting one device
1728 for (size_t i = 0; i < mOutputs.size(); i++) {
1729 desc = mOutputs.valueAt(i);
1730 if (!desc->isDuplicated() &&
1731 !(desc->mProfile->mSupportedDevices & mAvailableOutputDevices)) {
1732 ALOGV("checkOutputsForDevice(): disconnecting adding output %d", mOutputs.keyAt(i));
1733 outputs.add(mOutputs.keyAt(i));
1736 for (size_t i = 0; i < mHwModules.size(); i++)
1738 if (mHwModules[i]->mHandle == 0) {
1741 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++)
1743 IOProfile *profile = mHwModules[i]->mOutputProfiles[j];
1744 if ((profile->mSupportedDevices & device) &&
1745 (profile->mFlags & AUDIO_OUTPUT_FLAG_DIRECT)) {
1746 ALOGV("checkOutputsForDevice(): clearing direct output profile %d on module %d",
1748 if (profile->mSamplingRates[0] == 0) {
1749 profile->mSamplingRates.clear();
1750 profile->mSamplingRates.add(0);
1752 if (profile->mFormats[0] == 0) {
1753 profile->mFormats.clear();
1754 profile->mFormats.add((audio_format_t)0);
1756 if (profile->mChannelMasks[0] == 0) {
1757 profile->mChannelMasks.clear();
1758 profile->mChannelMasks.add((audio_channel_mask_t)0);
1767 void AudioPolicyManagerBase::closeOutput(audio_io_handle_t output)
1769 ALOGV("closeOutput(%d)", output);
1771 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
1772 if (outputDesc == NULL) {
1773 ALOGW("closeOutput() unknown output %d", output);
1777 // look for duplicated outputs connected to the output being removed.
1778 for (size_t i = 0; i < mOutputs.size(); i++) {
1779 AudioOutputDescriptor *dupOutputDesc = mOutputs.valueAt(i);
1780 if (dupOutputDesc->isDuplicated() &&
1781 (dupOutputDesc->mOutput1 == outputDesc ||
1782 dupOutputDesc->mOutput2 == outputDesc)) {
1783 AudioOutputDescriptor *outputDesc2;
1784 if (dupOutputDesc->mOutput1 == outputDesc) {
1785 outputDesc2 = dupOutputDesc->mOutput2;
1787 outputDesc2 = dupOutputDesc->mOutput1;
1789 // As all active tracks on duplicated output will be deleted,
1790 // and as they were also referenced on the other output, the reference
1791 // count for their stream type must be adjusted accordingly on
1792 // the other output.
1793 for (int j = 0; j < (int)AudioSystem::NUM_STREAM_TYPES; j++) {
1794 int refCount = dupOutputDesc->mRefCount[j];
1795 outputDesc2->changeRefCount((AudioSystem::stream_type)j,-refCount);
1797 audio_io_handle_t duplicatedOutput = mOutputs.keyAt(i);
1798 ALOGV("closeOutput() closing also duplicated output %d", duplicatedOutput);
1800 mpClientInterface->closeOutput(duplicatedOutput);
1801 delete mOutputs.valueFor(duplicatedOutput);
1802 mOutputs.removeItem(duplicatedOutput);
1806 AudioParameter param;
1807 param.add(String8("closing"), String8("true"));
1808 mpClientInterface->setParameters(output, param.toString());
1810 mpClientInterface->closeOutput(output);
1811 delete mOutputs.valueFor(output);
1812 mOutputs.removeItem(output);
1815 SortedVector<audio_io_handle_t> AudioPolicyManagerBase::getOutputsForDevice(audio_devices_t device,
1816 DefaultKeyedVector<audio_io_handle_t, AudioOutputDescriptor *> openOutputs)
1818 SortedVector<audio_io_handle_t> outputs;
1820 ALOGVV("getOutputsForDevice() device %04x", device);
1821 for (size_t i = 0; i < openOutputs.size(); i++) {
1822 ALOGVV("output %d isDuplicated=%d device=%04x",
1823 i, openOutputs.valueAt(i)->isDuplicated(), openOutputs.valueAt(i)->supportedDevices());
1824 if ((device & openOutputs.valueAt(i)->supportedDevices()) == device) {
1825 ALOGVV("getOutputsForDevice() found output %d", openOutputs.keyAt(i));
1826 outputs.add(openOutputs.keyAt(i));
1832 bool AudioPolicyManagerBase::vectorsEqual(SortedVector<audio_io_handle_t>& outputs1,
1833 SortedVector<audio_io_handle_t>& outputs2)
1835 if (outputs1.size() != outputs2.size()) {
1838 for (size_t i = 0; i < outputs1.size(); i++) {
1839 if (outputs1[i] != outputs2[i]) {
1846 void AudioPolicyManagerBase::checkOutputForStrategy(routing_strategy strategy)
1848 audio_devices_t oldDevice = getDeviceForStrategy(strategy, true /*fromCache*/);
1849 audio_devices_t newDevice = getDeviceForStrategy(strategy, false /*fromCache*/);
1850 SortedVector<audio_io_handle_t> srcOutputs = getOutputsForDevice(oldDevice, mPreviousOutputs);
1851 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(newDevice, mOutputs);
1853 if (!vectorsEqual(srcOutputs,dstOutputs)) {
1854 ALOGV("checkOutputForStrategy() strategy %d, moving from output %d to output %d",
1855 strategy, srcOutputs[0], dstOutputs[0]);
1856 // mute strategy while moving tracks from one output to another
1857 for (size_t i = 0; i < srcOutputs.size(); i++) {
1858 AudioOutputDescriptor *desc = mOutputs.valueFor(srcOutputs[i]);
1859 if (desc->strategyRefCount(strategy) != 0) {
1860 setStrategyMute(strategy, true, srcOutputs[i]);
1861 setStrategyMute(strategy, false, srcOutputs[i], MUTE_TIME_MS, newDevice);
1865 // Move effects associated to this strategy from previous output to new output
1866 if (strategy == STRATEGY_MEDIA) {
1868 for (size_t i = 0; i < dstOutputs.size(); i++) {
1869 AudioOutputDescriptor *desc = mOutputs.valueFor(dstOutputs[i]);
1870 if (desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) {
1874 SortedVector<audio_io_handle_t> moved;
1875 for (size_t i = 0; i < mEffects.size(); i++) {
1876 EffectDescriptor *desc = mEffects.valueAt(i);
1877 if (desc->mSession == AUDIO_SESSION_OUTPUT_MIX &&
1878 desc->mIo != dstOutputs[outIdx]) {
1879 if (moved.indexOf(desc->mIo) < 0) {
1880 ALOGV("checkOutputForStrategy() moving effect %d to output %d",
1881 mEffects.keyAt(i), dstOutputs[outIdx]);
1882 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, desc->mIo,
1883 dstOutputs[outIdx]);
1884 moved.add(desc->mIo);
1886 desc->mIo = dstOutputs[outIdx];
1890 // Move tracks associated to this strategy from previous output to new output
1891 for (int i = 0; i < (int)AudioSystem::NUM_STREAM_TYPES; i++) {
1892 if (getStrategy((AudioSystem::stream_type)i) == strategy) {
1893 //FIXME see fixme on name change
1894 mpClientInterface->setStreamOutput((AudioSystem::stream_type)i,
1895 dstOutputs[0] /* ignored */);
1901 void AudioPolicyManagerBase::checkOutputForAllStrategies()
1903 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE);
1904 checkOutputForStrategy(STRATEGY_PHONE);
1905 checkOutputForStrategy(STRATEGY_SONIFICATION);
1906 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL);
1907 checkOutputForStrategy(STRATEGY_MEDIA);
1908 checkOutputForStrategy(STRATEGY_DTMF);
1911 audio_io_handle_t AudioPolicyManagerBase::getA2dpOutput()
1917 for (size_t i = 0; i < mOutputs.size(); i++) {
1918 AudioOutputDescriptor *outputDesc = mOutputs.valueAt(i);
1919 if (!outputDesc->isDuplicated() && outputDesc->device() & AUDIO_DEVICE_OUT_ALL_A2DP) {
1920 return mOutputs.keyAt(i);
1927 void AudioPolicyManagerBase::checkA2dpSuspend()
1932 audio_io_handle_t a2dpOutput = getA2dpOutput();
1933 if (a2dpOutput == 0) {
1937 // suspend A2DP output if:
1938 // (NOT already suspended) &&
1939 // ((SCO device is connected &&
1940 // (forced usage for communication || for record is SCO))) ||
1941 // (phone state is ringing || in call)
1943 // restore A2DP output if:
1944 // (Already suspended) &&
1945 // ((SCO device is NOT connected ||
1946 // (forced usage NOT for communication && NOT for record is SCO))) &&
1947 // (phone state is NOT ringing && NOT in call)
1949 if (mA2dpSuspended) {
1950 if (((mScoDeviceAddress == "") ||
1951 ((mForceUse[AudioSystem::FOR_COMMUNICATION] != AudioSystem::FORCE_BT_SCO) &&
1952 (mForceUse[AudioSystem::FOR_RECORD] != AudioSystem::FORCE_BT_SCO))) &&
1953 ((mPhoneState != AudioSystem::MODE_IN_CALL) &&
1954 (mPhoneState != AudioSystem::MODE_RINGTONE))) {
1956 mpClientInterface->restoreOutput(a2dpOutput);
1957 mA2dpSuspended = false;
1960 if (((mScoDeviceAddress != "") &&
1961 ((mForceUse[AudioSystem::FOR_COMMUNICATION] == AudioSystem::FORCE_BT_SCO) ||
1962 (mForceUse[AudioSystem::FOR_RECORD] == AudioSystem::FORCE_BT_SCO))) ||
1963 ((mPhoneState == AudioSystem::MODE_IN_CALL) ||
1964 (mPhoneState == AudioSystem::MODE_RINGTONE))) {
1966 mpClientInterface->suspendOutput(a2dpOutput);
1967 mA2dpSuspended = true;
1972 audio_devices_t AudioPolicyManagerBase::getNewDevice(audio_io_handle_t output, bool fromCache)
1974 audio_devices_t device = AUDIO_DEVICE_NONE;
1976 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
1977 // check the following by order of priority to request a routing change if necessary:
1978 // 1: the strategy enforced audible is active on the output:
1979 // use device for strategy enforced audible
1980 // 2: we are in call or the strategy phone is active on the output:
1981 // use device for strategy phone
1982 // 3: the strategy sonification is active on the output:
1983 // use device for strategy sonification
1984 // 4: the strategy "respectful" sonification is active on the output:
1985 // use device for strategy "respectful" sonification
1986 // 5: the strategy media is active on the output:
1987 // use device for strategy media
1988 // 6: the strategy DTMF is active on the output:
1989 // use device for strategy DTMF
1990 if (outputDesc->isUsedByStrategy(STRATEGY_ENFORCED_AUDIBLE)) {
1991 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache);
1992 } else if (isInCall() ||
1993 outputDesc->isUsedByStrategy(STRATEGY_PHONE)) {
1994 device = getDeviceForStrategy(STRATEGY_PHONE, fromCache);
1995 } else if (outputDesc->isUsedByStrategy(STRATEGY_SONIFICATION)) {
1996 device = getDeviceForStrategy(STRATEGY_SONIFICATION, fromCache);
1997 } else if (outputDesc->isUsedByStrategy(STRATEGY_SONIFICATION_RESPECTFUL)) {
1998 device = getDeviceForStrategy(STRATEGY_SONIFICATION_RESPECTFUL, fromCache);
1999 } else if (outputDesc->isUsedByStrategy(STRATEGY_MEDIA)) {
2000 device = getDeviceForStrategy(STRATEGY_MEDIA, fromCache);
2001 } else if (outputDesc->isUsedByStrategy(STRATEGY_DTMF)) {
2002 device = getDeviceForStrategy(STRATEGY_DTMF, fromCache);
2005 ALOGV("getNewDevice() selected device %x", device);
2009 uint32_t AudioPolicyManagerBase::getStrategyForStream(AudioSystem::stream_type stream) {
2010 return (uint32_t)getStrategy(stream);
2013 audio_devices_t AudioPolicyManagerBase::getDevicesForStream(AudioSystem::stream_type stream) {
2014 audio_devices_t devices;
2015 // By checking the range of stream before calling getStrategy, we avoid
2016 // getStrategy's behavior for invalid streams. getStrategy would do a ALOGE
2017 // and then return STRATEGY_MEDIA, but we want to return the empty set.
2018 if (stream < (AudioSystem::stream_type) 0 || stream >= AudioSystem::NUM_STREAM_TYPES) {
2019 devices = AUDIO_DEVICE_NONE;
2021 AudioPolicyManagerBase::routing_strategy strategy = getStrategy(stream);
2022 devices = getDeviceForStrategy(strategy, true /*fromCache*/);
2027 AudioPolicyManagerBase::routing_strategy AudioPolicyManagerBase::getStrategy(
2028 AudioSystem::stream_type stream) {
2029 // stream to strategy mapping
2031 case AudioSystem::VOICE_CALL:
2032 case AudioSystem::BLUETOOTH_SCO:
2033 return STRATEGY_PHONE;
2034 case AudioSystem::RING:
2035 case AudioSystem::ALARM:
2036 return STRATEGY_SONIFICATION;
2037 case AudioSystem::NOTIFICATION:
2038 return STRATEGY_SONIFICATION_RESPECTFUL;
2039 case AudioSystem::DTMF:
2040 return STRATEGY_DTMF;
2042 ALOGE("unknown stream type");
2043 case AudioSystem::SYSTEM:
2044 // NOTE: SYSTEM stream uses MEDIA strategy because muting music and switching outputs
2045 // while key clicks are played produces a poor result
2046 case AudioSystem::TTS:
2047 case AudioSystem::MUSIC:
2048 return STRATEGY_MEDIA;
2049 case AudioSystem::ENFORCED_AUDIBLE:
2050 return STRATEGY_ENFORCED_AUDIBLE;
2054 void AudioPolicyManagerBase::handleNotificationRoutingForStream(AudioSystem::stream_type stream) {
2056 case AudioSystem::MUSIC:
2057 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL);
2058 updateDevicesAndOutputs();
2065 audio_devices_t AudioPolicyManagerBase::getDeviceForStrategy(routing_strategy strategy,
2068 uint32_t device = AUDIO_DEVICE_NONE;
2071 ALOGVV("getDeviceForStrategy() from cache strategy %d, device %x",
2072 strategy, mDeviceForStrategy[strategy]);
2073 return mDeviceForStrategy[strategy];
2078 case STRATEGY_SONIFICATION_RESPECTFUL:
2080 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/);
2081 } else if (isStreamActive(AudioSystem::MUSIC, SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) {
2082 // while media is playing (or has recently played), use the same device
2083 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/);
2085 // when media is not playing anymore, fall back on the sonification behavior
2086 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/);
2093 // when off call, DTMF strategy follows the same rules as MEDIA strategy
2094 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/);
2097 // when in call, DTMF and PHONE strategies follow the same rules
2100 case STRATEGY_PHONE:
2101 // for phone strategy, we first consider the forced use and then the available devices by order
2103 switch (mForceUse[AudioSystem::FOR_COMMUNICATION]) {
2104 case AudioSystem::FORCE_BT_SCO:
2105 if (!isInCall() || strategy != STRATEGY_DTMF) {
2106 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT;
2109 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET;
2111 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_SCO;
2113 // if SCO device is requested but no SCO device is available, fall back to default case
2116 default: // FORCE_NONE
2117 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to A2DP
2118 if (mHasA2dp && !isInCall() &&
2119 (mForceUse[AudioSystem::FOR_MEDIA] != AudioSystem::FORCE_NO_BT_A2DP) &&
2120 (getA2dpOutput() != 0) && !mA2dpSuspended) {
2121 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP;
2123 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES;
2126 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_WIRED_HEADPHONE;
2128 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_WIRED_HEADSET;
2130 if (mPhoneState != AudioSystem::MODE_IN_CALL) {
2131 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_ACCESSORY;
2133 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_DEVICE;
2135 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET;
2137 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_AUX_DIGITAL;
2139 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET;
2142 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_EARPIECE;
2144 device = mDefaultOutputDevice;
2145 if (device == AUDIO_DEVICE_NONE) {
2146 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE");
2150 case AudioSystem::FORCE_SPEAKER:
2151 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to
2152 // A2DP speaker when forcing to speaker output
2153 if (mHasA2dp && !isInCall() &&
2154 (mForceUse[AudioSystem::FOR_MEDIA] != AudioSystem::FORCE_NO_BT_A2DP) &&
2155 (getA2dpOutput() != 0) && !mA2dpSuspended) {
2156 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER;
2159 if (mPhoneState != AudioSystem::MODE_IN_CALL) {
2160 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_ACCESSORY;
2162 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_DEVICE;
2164 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET;
2166 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_AUX_DIGITAL;
2168 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET;
2171 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_SPEAKER;
2173 device = mDefaultOutputDevice;
2174 if (device == AUDIO_DEVICE_NONE) {
2175 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE, FORCE_SPEAKER");
2181 case STRATEGY_SONIFICATION:
2183 // If incall, just select the STRATEGY_PHONE device: The rest of the behavior is handled by
2184 // handleIncallSonification().
2186 device = getDeviceForStrategy(STRATEGY_PHONE, false /*fromCache*/);
2191 case STRATEGY_ENFORCED_AUDIBLE:
2192 // strategy STRATEGY_ENFORCED_AUDIBLE uses same routing policy as STRATEGY_SONIFICATION
2194 // - when in call where it doesn't default to STRATEGY_PHONE behavior
2195 // - in countries where not enforced in which case it follows STRATEGY_MEDIA
2197 if ((strategy == STRATEGY_SONIFICATION) ||
2198 (mForceUse[AudioSystem::FOR_SYSTEM] == AudioSystem::FORCE_SYSTEM_ENFORCED)) {
2199 device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_SPEAKER;
2200 if (device == AUDIO_DEVICE_NONE) {
2201 ALOGE("getDeviceForStrategy() speaker device not found for STRATEGY_SONIFICATION");
2204 // The second device used for sonification is the same as the device used by media strategy
2207 case STRATEGY_MEDIA: {
2208 uint32_t device2 = AUDIO_DEVICE_NONE;
2209 if (strategy != STRATEGY_SONIFICATION) {
2210 // no sonification on remote submix (e.g. WFD)
2211 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_REMOTE_SUBMIX;
2213 if ((device2 == AUDIO_DEVICE_NONE) &&
2214 mHasA2dp && (mForceUse[AudioSystem::FOR_MEDIA] != AudioSystem::FORCE_NO_BT_A2DP) &&
2215 (getA2dpOutput() != 0) && !mA2dpSuspended) {
2216 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP;
2217 if (device2 == AUDIO_DEVICE_NONE) {
2218 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES;
2220 if (device2 == AUDIO_DEVICE_NONE) {
2221 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER;
2224 if (device2 == AUDIO_DEVICE_NONE) {
2225 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_WIRED_HEADPHONE;
2227 if (device2 == AUDIO_DEVICE_NONE) {
2228 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_WIRED_HEADSET;
2230 if (device2 == AUDIO_DEVICE_NONE) {
2231 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_ACCESSORY;
2233 if (device2 == AUDIO_DEVICE_NONE) {
2234 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_DEVICE;
2236 if (device2 == AUDIO_DEVICE_NONE) {
2237 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET;
2239 if ((device2 == AUDIO_DEVICE_NONE) && (strategy != STRATEGY_SONIFICATION)) {
2240 // no sonification on aux digital (e.g. HDMI)
2241 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_AUX_DIGITAL;
2243 if ((device2 == AUDIO_DEVICE_NONE) &&
2244 (mForceUse[AudioSystem::FOR_DOCK] == AudioSystem::FORCE_ANALOG_DOCK)) {
2245 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET;
2247 if (device2 == AUDIO_DEVICE_NONE) {
2248 device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_SPEAKER;
2251 // device is DEVICE_OUT_SPEAKER if we come from case STRATEGY_SONIFICATION or
2252 // STRATEGY_ENFORCED_AUDIBLE, AUDIO_DEVICE_NONE otherwise
2255 device = mDefaultOutputDevice;
2256 if (device == AUDIO_DEVICE_NONE) {
2257 ALOGE("getDeviceForStrategy() no device found for STRATEGY_MEDIA");
2262 ALOGW("getDeviceForStrategy() unknown strategy: %d", strategy);
2266 ALOGVV("getDeviceForStrategy() strategy %d, device %x", strategy, device);
2270 void AudioPolicyManagerBase::updateDevicesAndOutputs()
2272 for (int i = 0; i < NUM_STRATEGIES; i++) {
2273 mDeviceForStrategy[i] = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/);
2275 mPreviousOutputs = mOutputs;
2278 uint32_t AudioPolicyManagerBase::checkDeviceMuteStrategies(AudioOutputDescriptor *outputDesc,
2279 audio_devices_t prevDevice,
2282 // mute/unmute strategies using an incompatible device combination
2283 // if muting, wait for the audio in pcm buffer to be drained before proceeding
2284 // if unmuting, unmute only after the specified delay
2285 if (outputDesc->isDuplicated()) {
2289 uint32_t muteWaitMs = 0;
2290 audio_devices_t device = outputDesc->device();
2291 bool shouldMute = (outputDesc->refCount() != 0) &&
2292 (AudioSystem::popCount(device) >= 2);
2293 // temporary mute output if device selection changes to avoid volume bursts due to
2294 // different per device volumes
2295 bool tempMute = (outputDesc->refCount() != 0) && (device != prevDevice);
2297 for (size_t i = 0; i < NUM_STRATEGIES; i++) {
2298 audio_devices_t curDevice = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/);
2299 bool mute = shouldMute && (curDevice & device) && (curDevice != device);
2300 bool doMute = false;
2302 if (mute && !outputDesc->mStrategyMutedByDevice[i]) {
2304 outputDesc->mStrategyMutedByDevice[i] = true;
2305 } else if (!mute && outputDesc->mStrategyMutedByDevice[i]){
2307 outputDesc->mStrategyMutedByDevice[i] = false;
2309 if (doMute || tempMute) {
2310 for (size_t j = 0; j < mOutputs.size(); j++) {
2311 AudioOutputDescriptor *desc = mOutputs.valueAt(j);
2312 if ((desc->supportedDevices() & outputDesc->supportedDevices())
2313 == AUDIO_DEVICE_NONE) {
2316 audio_io_handle_t curOutput = mOutputs.keyAt(j);
2317 ALOGVV("checkDeviceMuteStrategies() %s strategy %d (curDevice %04x) on output %d",
2318 mute ? "muting" : "unmuting", i, curDevice, curOutput);
2319 setStrategyMute((routing_strategy)i, mute, curOutput, mute ? 0 : delayMs);
2320 if (desc->strategyRefCount((routing_strategy)i) != 0) {
2322 setStrategyMute((routing_strategy)i, true, curOutput);
2323 setStrategyMute((routing_strategy)i, false, curOutput,
2324 desc->latency() * 2, device);
2326 if (tempMute || mute) {
2327 if (muteWaitMs < desc->latency()) {
2328 muteWaitMs = desc->latency();
2336 // FIXME: should not need to double latency if volume could be applied immediately by the
2337 // audioflinger mixer. We must account for the delay between now and the next time
2338 // the audioflinger thread for this output will process a buffer (which corresponds to
2339 // one buffer size, usually 1/2 or 1/4 of the latency).
2341 // wait for the PCM output buffers to empty before proceeding with the rest of the command
2342 if (muteWaitMs > delayMs) {
2343 muteWaitMs -= delayMs;
2344 usleep(muteWaitMs * 1000);
2350 uint32_t AudioPolicyManagerBase::setOutputDevice(audio_io_handle_t output,
2351 audio_devices_t device,
2355 ALOGV("setOutputDevice() output %d device %04x delayMs %d", output, device, delayMs);
2356 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
2357 AudioParameter param;
2358 uint32_t muteWaitMs = 0;
2360 if (outputDesc->isDuplicated()) {
2361 muteWaitMs = setOutputDevice(outputDesc->mOutput1->mId, device, force, delayMs);
2362 muteWaitMs += setOutputDevice(outputDesc->mOutput2->mId, device, force, delayMs);
2365 // filter devices according to output selected
2366 device = (audio_devices_t)(device & outputDesc->mProfile->mSupportedDevices);
2368 audio_devices_t prevDevice = outputDesc->mDevice;
2370 ALOGV("setOutputDevice() prevDevice %04x", prevDevice);
2372 if (device != AUDIO_DEVICE_NONE) {
2373 outputDesc->mDevice = device;
2375 muteWaitMs = checkDeviceMuteStrategies(outputDesc, prevDevice, delayMs);
2377 // Do not change the routing if:
2378 // - the requested device is AUDIO_DEVICE_NONE
2379 // - the requested device is the same as current device and force is not specified.
2380 // Doing this check here allows the caller to call setOutputDevice() without conditions
2381 if ((device == AUDIO_DEVICE_NONE || device == prevDevice) && !force) {
2382 ALOGV("setOutputDevice() setting same device %04x or null device for output %d", device, output);
2386 ALOGV("setOutputDevice() changing device");
2388 param.addInt(String8(AudioParameter::keyRouting), (int)device);
2389 mpClientInterface->setParameters(output, param.toString(), delayMs);
2391 // update stream volumes according to new device
2392 applyStreamVolumes(output, device, delayMs);
2397 AudioPolicyManagerBase::IOProfile *AudioPolicyManagerBase::getInputProfile(audio_devices_t device,
2398 uint32_t samplingRate,
2400 uint32_t channelMask)
2402 // Choose an input profile based on the requested capture parameters: select the first available
2403 // profile supporting all requested parameters.
2405 for (size_t i = 0; i < mHwModules.size(); i++)
2407 if (mHwModules[i]->mHandle == 0) {
2410 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++)
2412 IOProfile *profile = mHwModules[i]->mInputProfiles[j];
2413 if (profile->isCompatibleProfile(device, samplingRate, format,
2414 channelMask,(audio_output_flags_t)0)) {
2422 audio_devices_t AudioPolicyManagerBase::getDeviceForInputSource(int inputSource)
2424 uint32_t device = AUDIO_DEVICE_NONE;
2426 switch(inputSource) {
2427 case AUDIO_SOURCE_DEFAULT:
2428 case AUDIO_SOURCE_MIC:
2429 case AUDIO_SOURCE_VOICE_RECOGNITION:
2430 case AUDIO_SOURCE_VOICE_COMMUNICATION:
2431 if (mForceUse[AudioSystem::FOR_RECORD] == AudioSystem::FORCE_BT_SCO &&
2432 mAvailableInputDevices & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) {
2433 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET;
2434 } else if (mAvailableInputDevices & AUDIO_DEVICE_IN_WIRED_HEADSET) {
2435 device = AUDIO_DEVICE_IN_WIRED_HEADSET;
2436 } else if (mAvailableInputDevices & AUDIO_DEVICE_IN_BUILTIN_MIC) {
2437 device = AUDIO_DEVICE_IN_BUILTIN_MIC;
2440 case AUDIO_SOURCE_CAMCORDER:
2441 if (mAvailableInputDevices & AUDIO_DEVICE_IN_BACK_MIC) {
2442 device = AUDIO_DEVICE_IN_BACK_MIC;
2443 } else if (mAvailableInputDevices & AUDIO_DEVICE_IN_BUILTIN_MIC) {
2444 device = AUDIO_DEVICE_IN_BUILTIN_MIC;
2447 case AUDIO_SOURCE_VOICE_UPLINK:
2448 case AUDIO_SOURCE_VOICE_DOWNLINK:
2449 case AUDIO_SOURCE_VOICE_CALL:
2450 if (mAvailableInputDevices & AUDIO_DEVICE_IN_VOICE_CALL) {
2451 device = AUDIO_DEVICE_IN_VOICE_CALL;
2454 case AUDIO_SOURCE_REMOTE_SUBMIX:
2455 if (mAvailableInputDevices & AUDIO_DEVICE_IN_REMOTE_SUBMIX) {
2456 device = AUDIO_DEVICE_IN_REMOTE_SUBMIX;
2460 ALOGW("getDeviceForInputSource() invalid input source %d", inputSource);
2463 ALOGV("getDeviceForInputSource()input source %d, device %08x", inputSource, device);
2467 bool AudioPolicyManagerBase::isVirtualInputDevice(audio_devices_t device)
2469 if ((device & AUDIO_DEVICE_BIT_IN) != 0) {
2470 device &= ~AUDIO_DEVICE_BIT_IN;
2471 if ((popcount(device) == 1) && ((device & ~APM_AUDIO_IN_DEVICE_VIRTUAL_ALL) == 0))
2477 audio_io_handle_t AudioPolicyManagerBase::getActiveInput(bool ignoreVirtualInputs)
2479 for (size_t i = 0; i < mInputs.size(); i++) {
2480 const AudioInputDescriptor * input_descriptor = mInputs.valueAt(i);
2481 if ((input_descriptor->mRefCount > 0)
2482 && (!ignoreVirtualInputs || !isVirtualInputDevice(input_descriptor->mDevice))) {
2483 return mInputs.keyAt(i);
2490 audio_devices_t AudioPolicyManagerBase::getDeviceForVolume(audio_devices_t device)
2492 if (device == AUDIO_DEVICE_NONE) {
2493 // this happens when forcing a route update and no track is active on an output.
2494 // In this case the returned category is not important.
2495 device = AUDIO_DEVICE_OUT_SPEAKER;
2496 } else if (AudioSystem::popCount(device) > 1) {
2497 // Multiple device selection is either:
2498 // - speaker + one other device: give priority to speaker in this case.
2499 // - one A2DP device + another device: happens with duplicated output. In this case
2500 // retain the device on the A2DP output as the other must not correspond to an active
2501 // selection if not the speaker.
2502 if (device & AUDIO_DEVICE_OUT_SPEAKER) {
2503 device = AUDIO_DEVICE_OUT_SPEAKER;
2505 device = (audio_devices_t)(device & AUDIO_DEVICE_OUT_ALL_A2DP);
2509 ALOGW_IF(AudioSystem::popCount(device) != 1,
2510 "getDeviceForVolume() invalid device combination: %08x",
2516 AudioPolicyManagerBase::device_category AudioPolicyManagerBase::getDeviceCategory(audio_devices_t device)
2518 switch(getDeviceForVolume(device)) {
2519 case AUDIO_DEVICE_OUT_EARPIECE:
2520 return DEVICE_CATEGORY_EARPIECE;
2521 case AUDIO_DEVICE_OUT_WIRED_HEADSET:
2522 case AUDIO_DEVICE_OUT_WIRED_HEADPHONE:
2523 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO:
2524 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET:
2525 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP:
2526 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES:
2527 return DEVICE_CATEGORY_HEADSET;
2528 case AUDIO_DEVICE_OUT_SPEAKER:
2529 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT:
2530 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER:
2531 case AUDIO_DEVICE_OUT_AUX_DIGITAL:
2532 case AUDIO_DEVICE_OUT_USB_ACCESSORY:
2533 case AUDIO_DEVICE_OUT_USB_DEVICE:
2534 case AUDIO_DEVICE_OUT_REMOTE_SUBMIX:
2536 return DEVICE_CATEGORY_SPEAKER;
2540 float AudioPolicyManagerBase::volIndexToAmpl(audio_devices_t device, const StreamDescriptor& streamDesc,
2543 device_category deviceCategory = getDeviceCategory(device);
2544 const VolumeCurvePoint *curve = streamDesc.mVolumeCurve[deviceCategory];
2546 // the volume index in the UI is relative to the min and max volume indices for this stream type
2547 int nbSteps = 1 + curve[VOLMAX].mIndex -
2548 curve[VOLMIN].mIndex;
2549 int volIdx = (nbSteps * (indexInUi - streamDesc.mIndexMin)) /
2550 (streamDesc.mIndexMax - streamDesc.mIndexMin);
2552 // find what part of the curve this index volume belongs to, or if it's out of bounds
2554 if (volIdx < curve[VOLMIN].mIndex) { // out of bounds
2556 } else if (volIdx < curve[VOLKNEE1].mIndex) {
2558 } else if (volIdx < curve[VOLKNEE2].mIndex) {
2560 } else if (volIdx <= curve[VOLMAX].mIndex) {
2562 } else { // out of bounds
2566 // linear interpolation in the attenuation table in dB
2567 float decibels = curve[segment].mDBAttenuation +
2568 ((float)(volIdx - curve[segment].mIndex)) *
2569 ( (curve[segment+1].mDBAttenuation -
2570 curve[segment].mDBAttenuation) /
2571 ((float)(curve[segment+1].mIndex -
2572 curve[segment].mIndex)) );
2574 float amplification = exp( decibels * 0.115129f); // exp( dB * ln(10) / 20 )
2576 ALOGVV("VOLUME vol index=[%d %d %d], dB=[%.1f %.1f %.1f] ampl=%.5f",
2577 curve[segment].mIndex, volIdx,
2578 curve[segment+1].mIndex,
2579 curve[segment].mDBAttenuation,
2581 curve[segment+1].mDBAttenuation,
2584 return amplification;
2587 const AudioPolicyManagerBase::VolumeCurvePoint
2588 AudioPolicyManagerBase::sDefaultVolumeCurve[AudioPolicyManagerBase::VOLCNT] = {
2589 {1, -49.5f}, {33, -33.5f}, {66, -17.0f}, {100, 0.0f}
2592 const AudioPolicyManagerBase::VolumeCurvePoint
2593 AudioPolicyManagerBase::sDefaultMediaVolumeCurve[AudioPolicyManagerBase::VOLCNT] = {
2594 {1, -58.0f}, {20, -40.0f}, {60, -17.0f}, {100, 0.0f}
2597 const AudioPolicyManagerBase::VolumeCurvePoint
2598 AudioPolicyManagerBase::sSpeakerMediaVolumeCurve[AudioPolicyManagerBase::VOLCNT] = {
2599 {1, -56.0f}, {20, -34.0f}, {60, -11.0f}, {100, 0.0f}
2602 const AudioPolicyManagerBase::VolumeCurvePoint
2603 AudioPolicyManagerBase::sSpeakerSonificationVolumeCurve[AudioPolicyManagerBase::VOLCNT] = {
2604 {1, -29.7f}, {33, -20.1f}, {66, -10.2f}, {100, 0.0f}
2607 // AUDIO_STREAM_SYSTEM, AUDIO_STREAM_ENFORCED_AUDIBLE and AUDIO_STREAM_DTMF volume tracks
2608 // AUDIO_STREAM_RING on phones and AUDIO_STREAM_MUSIC on tablets (See AudioService.java).
2609 // The range is constrained between -24dB and -6dB over speaker and -30dB and -18dB over headset.
2610 const AudioPolicyManagerBase::VolumeCurvePoint
2611 AudioPolicyManagerBase::sDefaultSystemVolumeCurve[AudioPolicyManagerBase::VOLCNT] = {
2612 {1, -24.0f}, {33, -18.0f}, {66, -12.0f}, {100, -6.0f}
2615 const AudioPolicyManagerBase::VolumeCurvePoint
2616 AudioPolicyManagerBase::sHeadsetSystemVolumeCurve[AudioPolicyManagerBase::VOLCNT] = {
2617 {1, -30.0f}, {33, -26.0f}, {66, -22.0f}, {100, -18.0f}
2620 const AudioPolicyManagerBase::VolumeCurvePoint
2621 AudioPolicyManagerBase::sDefaultVoiceVolumeCurve[AudioPolicyManagerBase::VOLCNT] = {
2622 {0, -42.0f}, {33, -28.0f}, {66, -14.0f}, {100, 0.0f}
2625 const AudioPolicyManagerBase::VolumeCurvePoint
2626 AudioPolicyManagerBase::sSpeakerVoiceVolumeCurve[AudioPolicyManagerBase::VOLCNT] = {
2627 {0, -24.0f}, {33, -16.0f}, {66, -8.0f}, {100, 0.0f}
2630 const AudioPolicyManagerBase::VolumeCurvePoint
2631 *AudioPolicyManagerBase::sVolumeProfiles[AUDIO_STREAM_CNT]
2632 [AudioPolicyManagerBase::DEVICE_CATEGORY_CNT] = {
2633 { // AUDIO_STREAM_VOICE_CALL
2634 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET
2635 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER
2636 sDefaultVoiceVolumeCurve // DEVICE_CATEGORY_EARPIECE
2638 { // AUDIO_STREAM_SYSTEM
2639 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET
2640 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER
2641 sDefaultSystemVolumeCurve // DEVICE_CATEGORY_EARPIECE
2643 { // AUDIO_STREAM_RING
2644 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET
2645 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER
2646 sDefaultVolumeCurve // DEVICE_CATEGORY_EARPIECE
2648 { // AUDIO_STREAM_MUSIC
2649 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET
2650 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER
2651 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EARPIECE
2653 { // AUDIO_STREAM_ALARM
2654 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET
2655 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER
2656 sDefaultVolumeCurve // DEVICE_CATEGORY_EARPIECE
2658 { // AUDIO_STREAM_NOTIFICATION
2659 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET
2660 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER
2661 sDefaultVolumeCurve // DEVICE_CATEGORY_EARPIECE
2663 { // AUDIO_STREAM_BLUETOOTH_SCO
2664 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET
2665 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER
2666 sDefaultVoiceVolumeCurve // DEVICE_CATEGORY_EARPIECE
2668 { // AUDIO_STREAM_ENFORCED_AUDIBLE
2669 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET
2670 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER
2671 sDefaultSystemVolumeCurve // DEVICE_CATEGORY_EARPIECE
2673 { // AUDIO_STREAM_DTMF
2674 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET
2675 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER
2676 sDefaultSystemVolumeCurve // DEVICE_CATEGORY_EARPIECE
2678 { // AUDIO_STREAM_TTS
2679 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET
2680 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER
2681 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EARPIECE
2685 void AudioPolicyManagerBase::initializeVolumeCurves()
2687 for (int i = 0; i < AUDIO_STREAM_CNT; i++) {
2688 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) {
2689 mStreams[i].mVolumeCurve[j] =
2690 sVolumeProfiles[i][j];
2695 float AudioPolicyManagerBase::computeVolume(int stream,
2697 audio_io_handle_t output,
2698 audio_devices_t device)
2701 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
2702 StreamDescriptor &streamDesc = mStreams[stream];
2704 if (device == AUDIO_DEVICE_NONE) {
2705 device = outputDesc->device();
2708 // if volume is not 0 (not muted), force media volume to max on digital output
2709 if (stream == AudioSystem::MUSIC &&
2710 index != mStreams[stream].mIndexMin &&
2711 (device == AUDIO_DEVICE_OUT_AUX_DIGITAL ||
2712 device == AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET ||
2713 device == AUDIO_DEVICE_OUT_USB_ACCESSORY ||
2714 device == AUDIO_DEVICE_OUT_USB_DEVICE)) {
2718 volume = volIndexToAmpl(device, streamDesc, index);
2720 // if a headset is connected, apply the following rules to ring tones and notifications
2721 // to avoid sound level bursts in user's ears:
2722 // - always attenuate ring tones and notifications volume by 6dB
2723 // - if music is playing, always limit the volume to current music volume,
2724 // with a minimum threshold at -36dB so that notification is always perceived.
2725 const routing_strategy stream_strategy = getStrategy((AudioSystem::stream_type)stream);
2726 if ((device & (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP |
2727 AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES |
2728 AUDIO_DEVICE_OUT_WIRED_HEADSET |
2729 AUDIO_DEVICE_OUT_WIRED_HEADPHONE)) &&
2730 ((stream_strategy == STRATEGY_SONIFICATION)
2731 || (stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL)
2732 || (stream == AudioSystem::SYSTEM)
2733 || ((stream_strategy == STRATEGY_ENFORCED_AUDIBLE) &&
2734 (mForceUse[AudioSystem::FOR_SYSTEM] == AudioSystem::FORCE_NONE))) &&
2735 streamDesc.mCanBeMuted) {
2736 volume *= SONIFICATION_HEADSET_VOLUME_FACTOR;
2737 // when the phone is ringing we must consider that music could have been paused just before
2738 // by the music application and behave as if music was active if the last music track was
2740 if (isStreamActive(AudioSystem::MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY) ||
2741 mLimitRingtoneVolume) {
2742 audio_devices_t musicDevice = getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/);
2743 float musicVol = computeVolume(AudioSystem::MUSIC,
2744 mStreams[AudioSystem::MUSIC].getVolumeIndex(musicDevice),
2747 float minVol = (musicVol > SONIFICATION_HEADSET_VOLUME_MIN) ?
2748 musicVol : SONIFICATION_HEADSET_VOLUME_MIN;
2749 if (volume > minVol) {
2751 ALOGV("computeVolume limiting volume to %f musicVol %f", minVol, musicVol);
2759 status_t AudioPolicyManagerBase::checkAndSetVolume(int stream,
2761 audio_io_handle_t output,
2762 audio_devices_t device,
2767 // do not change actual stream volume if the stream is muted
2768 if (mOutputs.valueFor(output)->mMuteCount[stream] != 0) {
2769 ALOGVV("checkAndSetVolume() stream %d muted count %d",
2770 stream, mOutputs.valueFor(output)->mMuteCount[stream]);
2774 // do not change in call volume if bluetooth is connected and vice versa
2775 if ((stream == AudioSystem::VOICE_CALL && mForceUse[AudioSystem::FOR_COMMUNICATION] == AudioSystem::FORCE_BT_SCO) ||
2776 (stream == AudioSystem::BLUETOOTH_SCO && mForceUse[AudioSystem::FOR_COMMUNICATION] != AudioSystem::FORCE_BT_SCO)) {
2777 ALOGV("checkAndSetVolume() cannot set stream %d volume with force use = %d for comm",
2778 stream, mForceUse[AudioSystem::FOR_COMMUNICATION]);
2779 return INVALID_OPERATION;
2782 float volume = computeVolume(stream, index, output, device);
2783 // We actually change the volume if:
2784 // - the float value returned by computeVolume() changed
2785 // - the force flag is set
2786 if (volume != mOutputs.valueFor(output)->mCurVolume[stream] ||
2788 mOutputs.valueFor(output)->mCurVolume[stream] = volume;
2789 ALOGVV("checkAndSetVolume() for output %d stream %d, volume %f, delay %d", output, stream, volume, delayMs);
2790 // Force VOICE_CALL to track BLUETOOTH_SCO stream volume when bluetooth audio is
2792 if (stream == AudioSystem::BLUETOOTH_SCO) {
2793 mpClientInterface->setStreamVolume(AudioSystem::VOICE_CALL, volume, output, delayMs);
2795 mpClientInterface->setStreamVolume((AudioSystem::stream_type)stream, volume, output, delayMs);
2798 if (stream == AudioSystem::VOICE_CALL ||
2799 stream == AudioSystem::BLUETOOTH_SCO) {
2801 // Force voice volume to max for bluetooth SCO as volume is managed by the headset
2802 if (stream == AudioSystem::VOICE_CALL) {
2803 voiceVolume = (float)index/(float)mStreams[stream].mIndexMax;
2808 if (voiceVolume != mLastVoiceVolume && output == mPrimaryOutput) {
2809 mpClientInterface->setVoiceVolume(voiceVolume, delayMs);
2810 mLastVoiceVolume = voiceVolume;
2817 void AudioPolicyManagerBase::applyStreamVolumes(audio_io_handle_t output,
2818 audio_devices_t device,
2822 ALOGVV("applyStreamVolumes() for output %d and device %x", output, device);
2824 for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) {
2825 checkAndSetVolume(stream,
2826 mStreams[stream].getVolumeIndex(device),
2834 void AudioPolicyManagerBase::setStrategyMute(routing_strategy strategy,
2836 audio_io_handle_t output,
2838 audio_devices_t device)
2840 ALOGVV("setStrategyMute() strategy %d, mute %d, output %d", strategy, on, output);
2841 for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) {
2842 if (getStrategy((AudioSystem::stream_type)stream) == strategy) {
2843 setStreamMute(stream, on, output, delayMs, device);
2848 void AudioPolicyManagerBase::setStreamMute(int stream,
2850 audio_io_handle_t output,
2852 audio_devices_t device)
2854 StreamDescriptor &streamDesc = mStreams[stream];
2855 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
2856 if (device == AUDIO_DEVICE_NONE) {
2857 device = outputDesc->device();
2860 ALOGVV("setStreamMute() stream %d, mute %d, output %d, mMuteCount %d device %04x",
2861 stream, on, output, outputDesc->mMuteCount[stream], device);
2864 if (outputDesc->mMuteCount[stream] == 0) {
2865 if (streamDesc.mCanBeMuted &&
2866 ((stream != AudioSystem::ENFORCED_AUDIBLE) ||
2867 (mForceUse[AudioSystem::FOR_SYSTEM] == AudioSystem::FORCE_NONE))) {
2868 checkAndSetVolume(stream, 0, output, device, delayMs);
2871 // increment mMuteCount after calling checkAndSetVolume() so that volume change is not ignored
2872 outputDesc->mMuteCount[stream]++;
2874 if (outputDesc->mMuteCount[stream] == 0) {
2875 ALOGV("setStreamMute() unmuting non muted stream!");
2878 if (--outputDesc->mMuteCount[stream] == 0) {
2879 checkAndSetVolume(stream,
2880 streamDesc.getVolumeIndex(device),
2888 void AudioPolicyManagerBase::handleIncallSonification(int stream, bool starting, bool stateChange)
2890 // if the stream pertains to sonification strategy and we are in call we must
2891 // mute the stream if it is low visibility. If it is high visibility, we must play a tone
2892 // in the device used for phone strategy and play the tone if the selected device does not
2893 // interfere with the device used for phone strategy
2894 // if stateChange is true, we are called from setPhoneState() and we must mute or unmute as
2895 // many times as there are active tracks on the output
2896 const routing_strategy stream_strategy = getStrategy((AudioSystem::stream_type)stream);
2897 if ((stream_strategy == STRATEGY_SONIFICATION) ||
2898 ((stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL))) {
2899 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(mPrimaryOutput);
2900 ALOGV("handleIncallSonification() stream %d starting %d device %x stateChange %d",
2901 stream, starting, outputDesc->mDevice, stateChange);
2902 if (outputDesc->mRefCount[stream]) {
2905 muteCount = outputDesc->mRefCount[stream];
2907 if (AudioSystem::isLowVisibility((AudioSystem::stream_type)stream)) {
2908 ALOGV("handleIncallSonification() low visibility, muteCount %d", muteCount);
2909 for (int i = 0; i < muteCount; i++) {
2910 setStreamMute(stream, starting, mPrimaryOutput);
2913 ALOGV("handleIncallSonification() high visibility");
2914 if (outputDesc->device() &
2915 getDeviceForStrategy(STRATEGY_PHONE, true /*fromCache*/)) {
2916 ALOGV("handleIncallSonification() high visibility muted, muteCount %d", muteCount);
2917 for (int i = 0; i < muteCount; i++) {
2918 setStreamMute(stream, starting, mPrimaryOutput);
2922 mpClientInterface->startTone(ToneGenerator::TONE_SUP_CALL_WAITING, AudioSystem::VOICE_CALL);
2924 mpClientInterface->stopTone();
2931 bool AudioPolicyManagerBase::isInCall()
2933 return isStateInCall(mPhoneState);
2936 bool AudioPolicyManagerBase::isStateInCall(int state) {
2937 return ((state == AudioSystem::MODE_IN_CALL) ||
2938 (state == AudioSystem::MODE_IN_COMMUNICATION));
2941 bool AudioPolicyManagerBase::needsDirectOuput(audio_stream_type_t stream,
2942 uint32_t samplingRate,
2943 audio_format_t format,
2944 audio_channel_mask_t channelMask,
2945 audio_output_flags_t flags,
2946 audio_devices_t device)
2948 return ((flags & AudioSystem::OUTPUT_FLAG_DIRECT) ||
2949 (format != 0 && !AudioSystem::isLinearPCM(format)));
2952 uint32_t AudioPolicyManagerBase::getMaxEffectsCpuLoad()
2954 return MAX_EFFECTS_CPU_LOAD;
2957 uint32_t AudioPolicyManagerBase::getMaxEffectsMemory()
2959 return MAX_EFFECTS_MEMORY;
2962 // --- AudioOutputDescriptor class implementation
2964 AudioPolicyManagerBase::AudioOutputDescriptor::AudioOutputDescriptor(
2965 const IOProfile *profile)
2966 : mId(0), mSamplingRate(0), mFormat((audio_format_t)0),
2967 mChannelMask((audio_channel_mask_t)0), mLatency(0),
2968 mFlags((audio_output_flags_t)0), mDevice(AUDIO_DEVICE_NONE),
2969 mOutput1(0), mOutput2(0), mProfile(profile)
2971 // clear usage count for all stream types
2972 for (int i = 0; i < AudioSystem::NUM_STREAM_TYPES; i++) {
2974 mCurVolume[i] = -1.0;
2978 for (int i = 0; i < NUM_STRATEGIES; i++) {
2979 mStrategyMutedByDevice[i] = false;
2981 if (profile != NULL) {
2982 mSamplingRate = profile->mSamplingRates[0];
2983 mFormat = profile->mFormats[0];
2984 mChannelMask = profile->mChannelMasks[0];
2985 mFlags = profile->mFlags;
2989 audio_devices_t AudioPolicyManagerBase::AudioOutputDescriptor::device()
2991 if (isDuplicated()) {
2992 return (audio_devices_t)(mOutput1->mDevice | mOutput2->mDevice);
2998 uint32_t AudioPolicyManagerBase::AudioOutputDescriptor::latency()
3000 if (isDuplicated()) {
3001 return (mOutput1->mLatency > mOutput2->mLatency) ? mOutput1->mLatency : mOutput2->mLatency;
3007 bool AudioPolicyManagerBase::AudioOutputDescriptor::sharesHwModuleWith(
3008 const AudioOutputDescriptor *outputDesc)
3010 if (isDuplicated()) {
3011 return mOutput1->sharesHwModuleWith(outputDesc) || mOutput2->sharesHwModuleWith(outputDesc);
3012 } else if (outputDesc->isDuplicated()){
3013 return sharesHwModuleWith(outputDesc->mOutput1) || sharesHwModuleWith(outputDesc->mOutput2);
3015 return (mProfile->mModule == outputDesc->mProfile->mModule);
3019 void AudioPolicyManagerBase::AudioOutputDescriptor::changeRefCount(AudioSystem::stream_type stream, int delta)
3021 // forward usage count change to attached outputs
3022 if (isDuplicated()) {
3023 mOutput1->changeRefCount(stream, delta);
3024 mOutput2->changeRefCount(stream, delta);
3026 if ((delta + (int)mRefCount[stream]) < 0) {
3027 ALOGW("changeRefCount() invalid delta %d for stream %d, refCount %d", delta, stream, mRefCount[stream]);
3028 mRefCount[stream] = 0;
3031 mRefCount[stream] += delta;
3032 ALOGV("changeRefCount() stream %d, count %d", stream, mRefCount[stream]);
3035 uint32_t AudioPolicyManagerBase::AudioOutputDescriptor::refCount()
3037 uint32_t refcount = 0;
3038 for (int i = 0; i < (int)AudioSystem::NUM_STREAM_TYPES; i++) {
3039 refcount += mRefCount[i];
3044 uint32_t AudioPolicyManagerBase::AudioOutputDescriptor::strategyRefCount(routing_strategy strategy)
3046 uint32_t refCount = 0;
3047 for (int i = 0; i < (int)AudioSystem::NUM_STREAM_TYPES; i++) {
3048 if (getStrategy((AudioSystem::stream_type)i) == strategy) {
3049 refCount += mRefCount[i];
3055 audio_devices_t AudioPolicyManagerBase::AudioOutputDescriptor::supportedDevices()
3057 if (isDuplicated()) {
3058 return (audio_devices_t)(mOutput1->supportedDevices() | mOutput2->supportedDevices());
3060 return mProfile->mSupportedDevices ;
3064 status_t AudioPolicyManagerBase::AudioOutputDescriptor::dump(int fd)
3066 const size_t SIZE = 256;
3070 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate);
3071 result.append(buffer);
3072 snprintf(buffer, SIZE, " Format: %d\n", mFormat);
3073 result.append(buffer);
3074 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask);
3075 result.append(buffer);
3076 snprintf(buffer, SIZE, " Latency: %d\n", mLatency);
3077 result.append(buffer);
3078 snprintf(buffer, SIZE, " Flags %08x\n", mFlags);
3079 result.append(buffer);
3080 snprintf(buffer, SIZE, " Devices %08x\n", device());
3081 result.append(buffer);
3082 snprintf(buffer, SIZE, " Stream volume refCount muteCount\n");
3083 result.append(buffer);
3084 for (int i = 0; i < AudioSystem::NUM_STREAM_TYPES; i++) {
3085 snprintf(buffer, SIZE, " %02d %.03f %02d %02d\n", i, mCurVolume[i], mRefCount[i], mMuteCount[i]);
3086 result.append(buffer);
3088 write(fd, result.string(), result.size());
3093 // --- AudioInputDescriptor class implementation
3095 AudioPolicyManagerBase::AudioInputDescriptor::AudioInputDescriptor(const IOProfile *profile)
3096 : mSamplingRate(0), mFormat((audio_format_t)0), mChannelMask((audio_channel_mask_t)0),
3097 mDevice(AUDIO_DEVICE_NONE), mRefCount(0),
3098 mInputSource(0), mProfile(profile)
3102 status_t AudioPolicyManagerBase::AudioInputDescriptor::dump(int fd)
3104 const size_t SIZE = 256;
3108 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate);
3109 result.append(buffer);
3110 snprintf(buffer, SIZE, " Format: %d\n", mFormat);
3111 result.append(buffer);
3112 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask);
3113 result.append(buffer);
3114 snprintf(buffer, SIZE, " Devices %08x\n", mDevice);
3115 result.append(buffer);
3116 snprintf(buffer, SIZE, " Ref Count %d\n", mRefCount);
3117 result.append(buffer);
3118 write(fd, result.string(), result.size());
3123 // --- StreamDescriptor class implementation
3125 AudioPolicyManagerBase::StreamDescriptor::StreamDescriptor()
3126 : mIndexMin(0), mIndexMax(1), mCanBeMuted(true)
3128 mIndexCur.add(AUDIO_DEVICE_OUT_DEFAULT, 0);
3131 int AudioPolicyManagerBase::StreamDescriptor::getVolumeIndex(audio_devices_t device)
3133 device = AudioPolicyManagerBase::getDeviceForVolume(device);
3134 // there is always a valid entry for AUDIO_DEVICE_OUT_DEFAULT
3135 if (mIndexCur.indexOfKey(device) < 0) {
3136 device = AUDIO_DEVICE_OUT_DEFAULT;
3138 return mIndexCur.valueFor(device);
3141 void AudioPolicyManagerBase::StreamDescriptor::dump(int fd)
3143 const size_t SIZE = 256;
3147 snprintf(buffer, SIZE, "%s %02d %02d ",
3148 mCanBeMuted ? "true " : "false", mIndexMin, mIndexMax);
3149 result.append(buffer);
3150 for (size_t i = 0; i < mIndexCur.size(); i++) {
3151 snprintf(buffer, SIZE, "%04x : %02d, ",
3153 mIndexCur.valueAt(i));
3154 result.append(buffer);
3156 result.append("\n");
3158 write(fd, result.string(), result.size());
3161 // --- EffectDescriptor class implementation
3163 status_t AudioPolicyManagerBase::EffectDescriptor::dump(int fd)
3165 const size_t SIZE = 256;
3169 snprintf(buffer, SIZE, " I/O: %d\n", mIo);
3170 result.append(buffer);
3171 snprintf(buffer, SIZE, " Strategy: %d\n", mStrategy);
3172 result.append(buffer);
3173 snprintf(buffer, SIZE, " Session: %d\n", mSession);
3174 result.append(buffer);
3175 snprintf(buffer, SIZE, " Name: %s\n", mDesc.name);
3176 result.append(buffer);
3177 snprintf(buffer, SIZE, " %s\n", mEnabled ? "Enabled" : "Disabled");
3178 result.append(buffer);
3179 write(fd, result.string(), result.size());
3184 // --- IOProfile class implementation
3186 AudioPolicyManagerBase::HwModule::HwModule(const char *name)
3187 : mName(strndup(name, AUDIO_HARDWARE_MODULE_ID_MAX_LEN)), mHandle(0)
3191 AudioPolicyManagerBase::HwModule::~HwModule()
3193 for (size_t i = 0; i < mOutputProfiles.size(); i++) {
3194 delete mOutputProfiles[i];
3196 for (size_t i = 0; i < mInputProfiles.size(); i++) {
3197 delete mInputProfiles[i];
3199 free((void *)mName);
3202 void AudioPolicyManagerBase::HwModule::dump(int fd)
3204 const size_t SIZE = 256;
3208 snprintf(buffer, SIZE, " - name: %s\n", mName);
3209 result.append(buffer);
3210 snprintf(buffer, SIZE, " - handle: %d\n", mHandle);
3211 result.append(buffer);
3212 write(fd, result.string(), result.size());
3213 if (mOutputProfiles.size()) {
3214 write(fd, " - outputs:\n", sizeof(" - outputs:\n"));
3215 for (size_t i = 0; i < mOutputProfiles.size(); i++) {
3216 snprintf(buffer, SIZE, " output %d:\n", i);
3217 write(fd, buffer, strlen(buffer));
3218 mOutputProfiles[i]->dump(fd);
3221 if (mInputProfiles.size()) {
3222 write(fd, " - inputs:\n", sizeof(" - inputs:\n"));
3223 for (size_t i = 0; i < mInputProfiles.size(); i++) {
3224 snprintf(buffer, SIZE, " input %d:\n", i);
3225 write(fd, buffer, strlen(buffer));
3226 mInputProfiles[i]->dump(fd);
3231 AudioPolicyManagerBase::IOProfile::IOProfile(HwModule *module)
3232 : mFlags((audio_output_flags_t)0), mModule(module)
3236 AudioPolicyManagerBase::IOProfile::~IOProfile()
3240 // checks if the IO profile is compatible with specified parameters. By convention a value of 0
3241 // means a parameter is don't care
3242 bool AudioPolicyManagerBase::IOProfile::isCompatibleProfile(audio_devices_t device,
3243 uint32_t samplingRate,
3245 uint32_t channelMask,
3246 audio_output_flags_t flags) const
3248 if ((mSupportedDevices & device) != device) {
3251 if ((mFlags & flags) != flags) {
3254 if (samplingRate != 0) {
3256 for (i = 0; i < mSamplingRates.size(); i++)
3258 if (mSamplingRates[i] == samplingRate) {
3262 if (i == mSamplingRates.size()) {
3268 for (i = 0; i < mFormats.size(); i++)
3270 if (mFormats[i] == format) {
3274 if (i == mFormats.size()) {
3278 if (channelMask != 0) {
3280 for (i = 0; i < mChannelMasks.size(); i++)
3282 if (mChannelMasks[i] == channelMask) {
3286 if (i == mChannelMasks.size()) {
3293 void AudioPolicyManagerBase::IOProfile::dump(int fd)
3295 const size_t SIZE = 256;
3299 snprintf(buffer, SIZE, " - sampling rates: ");
3300 result.append(buffer);
3301 for (size_t i = 0; i < mSamplingRates.size(); i++) {
3302 snprintf(buffer, SIZE, "%d", mSamplingRates[i]);
3303 result.append(buffer);
3304 result.append(i == (mSamplingRates.size() - 1) ? "\n" : ", ");
3307 snprintf(buffer, SIZE, " - channel masks: ");
3308 result.append(buffer);
3309 for (size_t i = 0; i < mChannelMasks.size(); i++) {
3310 snprintf(buffer, SIZE, "%04x", mChannelMasks[i]);
3311 result.append(buffer);
3312 result.append(i == (mChannelMasks.size() - 1) ? "\n" : ", ");
3315 snprintf(buffer, SIZE, " - formats: ");
3316 result.append(buffer);
3317 for (size_t i = 0; i < mFormats.size(); i++) {
3318 snprintf(buffer, SIZE, "%d", mFormats[i]);
3319 result.append(buffer);
3320 result.append(i == (mFormats.size() - 1) ? "\n" : ", ");
3323 snprintf(buffer, SIZE, " - devices: %04x\n", mSupportedDevices);
3324 result.append(buffer);
3325 snprintf(buffer, SIZE, " - flags: %04x\n", mFlags);
3326 result.append(buffer);
3328 write(fd, result.string(), result.size());
3331 // --- audio_policy.conf file parsing
3333 struct StringToEnum {
3338 #define STRING_TO_ENUM(string) { #string, string }
3339 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
3341 const struct StringToEnum sDeviceNameToEnumTable[] = {
3342 STRING_TO_ENUM(AUDIO_DEVICE_OUT_EARPIECE),
3343 STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPEAKER),
3344 STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADSET),
3345 STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADPHONE),
3346 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_SCO),
3347 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_A2DP),
3348 STRING_TO_ENUM(AUDIO_DEVICE_OUT_AUX_DIGITAL),
3349 STRING_TO_ENUM(AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET),
3350 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET),
3351 STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_DEVICE),
3352 STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_ACCESSORY),
3353 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_USB),
3354 STRING_TO_ENUM(AUDIO_DEVICE_OUT_REMOTE_SUBMIX),
3355 STRING_TO_ENUM(AUDIO_DEVICE_IN_BUILTIN_MIC),
3356 STRING_TO_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET),
3357 STRING_TO_ENUM(AUDIO_DEVICE_IN_WIRED_HEADSET),
3358 STRING_TO_ENUM(AUDIO_DEVICE_IN_AUX_DIGITAL),
3359 STRING_TO_ENUM(AUDIO_DEVICE_IN_VOICE_CALL),
3360 STRING_TO_ENUM(AUDIO_DEVICE_IN_BACK_MIC),
3361 STRING_TO_ENUM(AUDIO_DEVICE_IN_REMOTE_SUBMIX),
3362 STRING_TO_ENUM(AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET),
3363 STRING_TO_ENUM(AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET),
3364 STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_ACCESSORY),
3367 const struct StringToEnum sFlagNameToEnumTable[] = {
3368 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DIRECT),
3369 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_PRIMARY),
3370 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_FAST),
3371 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DEEP_BUFFER),
3374 const struct StringToEnum sFormatNameToEnumTable[] = {
3375 STRING_TO_ENUM(AUDIO_FORMAT_PCM_16_BIT),
3376 STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_BIT),
3377 STRING_TO_ENUM(AUDIO_FORMAT_MP3),
3378 STRING_TO_ENUM(AUDIO_FORMAT_AAC),
3379 STRING_TO_ENUM(AUDIO_FORMAT_VORBIS),
3382 const struct StringToEnum sOutChannelsNameToEnumTable[] = {
3383 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_MONO),
3384 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_STEREO),
3385 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_5POINT1),
3386 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_7POINT1),
3389 const struct StringToEnum sInChannelsNameToEnumTable[] = {
3390 STRING_TO_ENUM(AUDIO_CHANNEL_IN_MONO),
3391 STRING_TO_ENUM(AUDIO_CHANNEL_IN_STEREO),
3395 uint32_t AudioPolicyManagerBase::stringToEnum(const struct StringToEnum *table,
3399 for (size_t i = 0; i < size; i++) {
3400 if (strcmp(table[i].name, name) == 0) {
3401 ALOGV("stringToEnum() found %s", table[i].name);
3402 return table[i].value;
3408 audio_output_flags_t AudioPolicyManagerBase::parseFlagNames(char *name)
3412 // it is OK to cast name to non const here as we are not going to use it after
3413 // strtok() modifies it
3414 char *flagName = strtok(name, "|");
3415 while (flagName != NULL) {
3416 if (strlen(flagName) != 0) {
3417 flag |= stringToEnum(sFlagNameToEnumTable,
3418 ARRAY_SIZE(sFlagNameToEnumTable),
3421 flagName = strtok(NULL, "|");
3423 return (audio_output_flags_t)flag;
3426 audio_devices_t AudioPolicyManagerBase::parseDeviceNames(char *name)
3428 uint32_t device = 0;
3430 char *devName = strtok(name, "|");
3431 while (devName != NULL) {
3432 if (strlen(devName) != 0) {
3433 device |= stringToEnum(sDeviceNameToEnumTable,
3434 ARRAY_SIZE(sDeviceNameToEnumTable),
3437 devName = strtok(NULL, "|");
3442 void AudioPolicyManagerBase::loadSamplingRates(char *name, IOProfile *profile)
3444 char *str = strtok(name, "|");
3446 // by convention, "0' in the first entry in mSamplingRates indicates the supported sampling
3447 // rates should be read from the output stream after it is opened for the first time
3448 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) {
3449 profile->mSamplingRates.add(0);
3453 while (str != NULL) {
3454 uint32_t rate = atoi(str);
3456 ALOGV("loadSamplingRates() adding rate %d", rate);
3457 profile->mSamplingRates.add(rate);
3459 str = strtok(NULL, "|");
3464 void AudioPolicyManagerBase::loadFormats(char *name, IOProfile *profile)
3466 char *str = strtok(name, "|");
3468 // by convention, "0' in the first entry in mFormats indicates the supported formats
3469 // should be read from the output stream after it is opened for the first time
3470 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) {
3471 profile->mFormats.add((audio_format_t)0);
3475 while (str != NULL) {
3476 audio_format_t format = (audio_format_t)stringToEnum(sFormatNameToEnumTable,
3477 ARRAY_SIZE(sFormatNameToEnumTable),
3480 profile->mFormats.add(format);
3482 str = strtok(NULL, "|");
3487 void AudioPolicyManagerBase::loadInChannels(char *name, IOProfile *profile)
3489 const char *str = strtok(name, "|");
3491 ALOGV("loadInChannels() %s", name);
3493 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) {
3494 profile->mChannelMasks.add((audio_channel_mask_t)0);
3498 while (str != NULL) {
3499 audio_channel_mask_t channelMask =
3500 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable,
3501 ARRAY_SIZE(sInChannelsNameToEnumTable),
3503 if (channelMask != 0) {
3504 ALOGV("loadInChannels() adding channelMask %04x", channelMask);
3505 profile->mChannelMasks.add(channelMask);
3507 str = strtok(NULL, "|");
3512 void AudioPolicyManagerBase::loadOutChannels(char *name, IOProfile *profile)
3514 const char *str = strtok(name, "|");
3516 ALOGV("loadOutChannels() %s", name);
3518 // by convention, "0' in the first entry in mChannelMasks indicates the supported channel
3519 // masks should be read from the output stream after it is opened for the first time
3520 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) {
3521 profile->mChannelMasks.add((audio_channel_mask_t)0);
3525 while (str != NULL) {
3526 audio_channel_mask_t channelMask =
3527 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable,
3528 ARRAY_SIZE(sOutChannelsNameToEnumTable),
3530 if (channelMask != 0) {
3531 profile->mChannelMasks.add(channelMask);
3533 str = strtok(NULL, "|");
3538 status_t AudioPolicyManagerBase::loadInput(cnode *root, HwModule *module)
3540 cnode *node = root->first_child;
3542 IOProfile *profile = new IOProfile(module);
3545 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) {
3546 loadSamplingRates((char *)node->value, profile);
3547 } else if (strcmp(node->name, FORMATS_TAG) == 0) {
3548 loadFormats((char *)node->value, profile);
3549 } else if (strcmp(node->name, CHANNELS_TAG) == 0) {
3550 loadInChannels((char *)node->value, profile);
3551 } else if (strcmp(node->name, DEVICES_TAG) == 0) {
3552 profile->mSupportedDevices = parseDeviceNames((char *)node->value);
3556 ALOGW_IF(profile->mSupportedDevices == AUDIO_DEVICE_NONE,
3557 "loadInput() invalid supported devices");
3558 ALOGW_IF(profile->mChannelMasks.size() == 0,
3559 "loadInput() invalid supported channel masks");
3560 ALOGW_IF(profile->mSamplingRates.size() == 0,
3561 "loadInput() invalid supported sampling rates");
3562 ALOGW_IF(profile->mFormats.size() == 0,
3563 "loadInput() invalid supported formats");
3564 if ((profile->mSupportedDevices != AUDIO_DEVICE_NONE) &&
3565 (profile->mChannelMasks.size() != 0) &&
3566 (profile->mSamplingRates.size() != 0) &&
3567 (profile->mFormats.size() != 0)) {
3569 ALOGV("loadInput() adding input mSupportedDevices %04x", profile->mSupportedDevices);
3571 module->mInputProfiles.add(profile);
3579 status_t AudioPolicyManagerBase::loadOutput(cnode *root, HwModule *module)
3581 cnode *node = root->first_child;
3583 IOProfile *profile = new IOProfile(module);
3586 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) {
3587 loadSamplingRates((char *)node->value, profile);
3588 } else if (strcmp(node->name, FORMATS_TAG) == 0) {
3589 loadFormats((char *)node->value, profile);
3590 } else if (strcmp(node->name, CHANNELS_TAG) == 0) {
3591 loadOutChannels((char *)node->value, profile);
3592 } else if (strcmp(node->name, DEVICES_TAG) == 0) {
3593 profile->mSupportedDevices = parseDeviceNames((char *)node->value);
3594 } else if (strcmp(node->name, FLAGS_TAG) == 0) {
3595 profile->mFlags = parseFlagNames((char *)node->value);
3599 ALOGW_IF(profile->mSupportedDevices == AUDIO_DEVICE_NONE,
3600 "loadOutput() invalid supported devices");
3601 ALOGW_IF(profile->mChannelMasks.size() == 0,
3602 "loadOutput() invalid supported channel masks");
3603 ALOGW_IF(profile->mSamplingRates.size() == 0,
3604 "loadOutput() invalid supported sampling rates");
3605 ALOGW_IF(profile->mFormats.size() == 0,
3606 "loadOutput() invalid supported formats");
3607 if ((profile->mSupportedDevices != AUDIO_DEVICE_NONE) &&
3608 (profile->mChannelMasks.size() != 0) &&
3609 (profile->mSamplingRates.size() != 0) &&
3610 (profile->mFormats.size() != 0)) {
3612 ALOGV("loadOutput() adding output mSupportedDevices %04x, mFlags %04x",
3613 profile->mSupportedDevices, profile->mFlags);
3615 module->mOutputProfiles.add(profile);
3623 void AudioPolicyManagerBase::loadHwModule(cnode *root)
3625 cnode *node = config_find(root, OUTPUTS_TAG);
3626 status_t status = NAME_NOT_FOUND;
3628 HwModule *module = new HwModule(root->name);
3631 if (strcmp(root->name, AUDIO_HARDWARE_MODULE_ID_A2DP) == 0) {
3633 } else if (strcmp(root->name, AUDIO_HARDWARE_MODULE_ID_USB) == 0) {
3635 } else if (strcmp(root->name, AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX) == 0) {
3636 mHasRemoteSubmix = true;
3639 node = node->first_child;
3641 ALOGV("loadHwModule() loading output %s", node->name);
3642 status_t tmpStatus = loadOutput(node, module);
3643 if (status == NAME_NOT_FOUND || status == NO_ERROR) {
3649 node = config_find(root, INPUTS_TAG);
3651 node = node->first_child;
3653 ALOGV("loadHwModule() loading input %s", node->name);
3654 status_t tmpStatus = loadInput(node, module);
3655 if (status == NAME_NOT_FOUND || status == NO_ERROR) {
3661 if (status == NO_ERROR) {
3662 mHwModules.add(module);
3668 void AudioPolicyManagerBase::loadHwModules(cnode *root)
3670 cnode *node = config_find(root, AUDIO_HW_MODULE_TAG);
3675 node = node->first_child;
3677 ALOGV("loadHwModules() loading module %s", node->name);
3683 void AudioPolicyManagerBase::loadGlobalConfig(cnode *root)
3685 cnode *node = config_find(root, GLOBAL_CONFIG_TAG);
3689 node = node->first_child;
3691 if (strcmp(ATTACHED_OUTPUT_DEVICES_TAG, node->name) == 0) {
3692 mAttachedOutputDevices = parseDeviceNames((char *)node->value);
3693 ALOGW_IF(mAttachedOutputDevices == AUDIO_DEVICE_NONE,
3694 "loadGlobalConfig() no attached output devices");
3695 ALOGV("loadGlobalConfig() mAttachedOutputDevices %04x", mAttachedOutputDevices);
3696 } else if (strcmp(DEFAULT_OUTPUT_DEVICE_TAG, node->name) == 0) {
3697 mDefaultOutputDevice = (audio_devices_t)stringToEnum(sDeviceNameToEnumTable,
3698 ARRAY_SIZE(sDeviceNameToEnumTable),
3699 (char *)node->value);
3700 ALOGW_IF(mDefaultOutputDevice == AUDIO_DEVICE_NONE,
3701 "loadGlobalConfig() default device not specified");
3702 ALOGV("loadGlobalConfig() mDefaultOutputDevice %04x", mDefaultOutputDevice);
3703 } else if (strcmp(ATTACHED_INPUT_DEVICES_TAG, node->name) == 0) {
3704 mAvailableInputDevices = parseDeviceNames((char *)node->value) & ~AUDIO_DEVICE_BIT_IN;
3705 ALOGV("loadGlobalConfig() mAvailableInputDevices %04x", mAvailableInputDevices);
3711 status_t AudioPolicyManagerBase::loadAudioPolicyConfig(const char *path)
3716 data = (char *)load_file(path, NULL);
3720 root = config_node("", "");
3721 config_load(root, data);
3723 loadGlobalConfig(root);
3724 loadHwModules(root);
3730 ALOGI("loadAudioPolicyConfig() loaded %s\n", path);
3735 void AudioPolicyManagerBase::defaultAudioPolicyConfig(void)
3740 mDefaultOutputDevice = AUDIO_DEVICE_OUT_SPEAKER;
3741 mAttachedOutputDevices = AUDIO_DEVICE_OUT_SPEAKER;
3742 mAvailableInputDevices = AUDIO_DEVICE_IN_BUILTIN_MIC & ~AUDIO_DEVICE_BIT_IN;
3744 module = new HwModule("primary");
3746 profile = new IOProfile(module);
3747 profile->mSamplingRates.add(44100);
3748 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT);
3749 profile->mChannelMasks.add(AUDIO_CHANNEL_OUT_STEREO);
3750 profile->mSupportedDevices = AUDIO_DEVICE_OUT_SPEAKER;
3751 profile->mFlags = AUDIO_OUTPUT_FLAG_PRIMARY;
3752 module->mOutputProfiles.add(profile);
3754 profile = new IOProfile(module);
3755 profile->mSamplingRates.add(8000);
3756 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT);
3757 profile->mChannelMasks.add(AUDIO_CHANNEL_IN_MONO);
3758 profile->mSupportedDevices = AUDIO_DEVICE_IN_BUILTIN_MIC;
3759 module->mInputProfiles.add(profile);
3761 mHwModules.add(module);
3764 }; // namespace android