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Diffstat (limited to 'services/audiopolicy/enginedefault/src/Engine.cpp')
| -rwxr-xr-x | services/audiopolicy/enginedefault/src/Engine.cpp | 707 |
1 files changed, 707 insertions, 0 deletions
diff --git a/services/audiopolicy/enginedefault/src/Engine.cpp b/services/audiopolicy/enginedefault/src/Engine.cpp new file mode 100755 index 0000000..b4d7246 --- /dev/null +++ b/services/audiopolicy/enginedefault/src/Engine.cpp @@ -0,0 +1,707 @@ +/* + * Copyright (C) 2015 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#define LOG_TAG "APM::AudioPolicyEngine" +//#define LOG_NDEBUG 0 + +//#define VERY_VERBOSE_LOGGING +#ifdef VERY_VERBOSE_LOGGING +#define ALOGVV ALOGV +#else +#define ALOGVV(a...) do { } while(0) +#endif + +#include "Engine.h" +#include "Gains.h" +#include <AudioPolicyManagerObserver.h> +#include <AudioPort.h> +#include <IOProfile.h> +#include <policy.h> +#include <utils/String8.h> +#include <utils/Log.h> + +namespace android +{ +namespace audio_policy +{ + +Engine::Engine() + : mManagerInterface(this), + mPhoneState(AUDIO_MODE_NORMAL), + mApmObserver(NULL) +{ + for (int i = 0; i < AUDIO_POLICY_FORCE_USE_CNT; i++) { + mForceUse[i] = AUDIO_POLICY_FORCE_NONE; + } +} + +Engine::~Engine() +{ +} + +void Engine::setObserver(AudioPolicyManagerObserver *observer) +{ + ALOG_ASSERT(observer != NULL, "Invalid Audio Policy Manager observer"); + mApmObserver = observer; +} + +status_t Engine::initCheck() +{ + return (mApmObserver != NULL) ? NO_ERROR : NO_INIT; +} + +float Engine::volIndexToAmpl(Volume::device_category category, audio_stream_type_t streamType, + int indexInUi) +{ + const StreamDescriptor &streamDesc = mApmObserver->getStreamDescriptors().valueAt(streamType); + return Gains::volIndexToAmpl(category, streamDesc, indexInUi); +} + +status_t Engine::initStreamVolume(audio_stream_type_t stream, int indexMin, int indexMax) +{ + ALOGV("initStreamVolume() stream %d, min %d, max %d", stream , indexMin, indexMax); + if (indexMin < 0 || indexMin >= indexMax) { + ALOGW("initStreamVolume() invalid index limits for stream %d, min %d, max %d", + stream , indexMin, indexMax); + return BAD_VALUE; + } + mApmObserver->getStreamDescriptors().setVolumeIndexMin(stream, indexMin); + mApmObserver->getStreamDescriptors().setVolumeIndexMax(stream, indexMax); + return NO_ERROR; +} + +void Engine::initializeVolumeCurves(bool isSpeakerDrcEnabled) +{ + StreamDescriptorCollection &streams = mApmObserver->getStreamDescriptors(); + + for (int i = 0; i < AUDIO_STREAM_CNT; i++) { + for (int j = 0; j < Volume::DEVICE_CATEGORY_CNT; j++) { + streams.setVolumeCurvePoint(static_cast<audio_stream_type_t>(i), + static_cast<Volume::device_category>(j), + Gains::sVolumeProfiles[i][j]); + } + } + + // Check availability of DRC on speaker path: if available, override some of the speaker curves + if (isSpeakerDrcEnabled) { + streams.setVolumeCurvePoint(AUDIO_STREAM_SYSTEM, Volume::DEVICE_CATEGORY_SPEAKER, + Gains::sDefaultSystemVolumeCurveDrc); + streams.setVolumeCurvePoint(AUDIO_STREAM_RING, Volume::DEVICE_CATEGORY_SPEAKER, + Gains::sSpeakerSonificationVolumeCurveDrc); + streams.setVolumeCurvePoint(AUDIO_STREAM_ALARM, Volume::DEVICE_CATEGORY_SPEAKER, + Gains::sSpeakerSonificationVolumeCurveDrc); + streams.setVolumeCurvePoint(AUDIO_STREAM_NOTIFICATION, Volume::DEVICE_CATEGORY_SPEAKER, + Gains::sSpeakerSonificationVolumeCurveDrc); + streams.setVolumeCurvePoint(AUDIO_STREAM_MUSIC, Volume::DEVICE_CATEGORY_SPEAKER, + Gains::sSpeakerMediaVolumeCurveDrc); + streams.setVolumeCurvePoint(AUDIO_STREAM_ACCESSIBILITY, Volume::DEVICE_CATEGORY_SPEAKER, + Gains::sSpeakerMediaVolumeCurveDrc); + } +} + + +status_t Engine::setPhoneState(audio_mode_t state) +{ + ALOGV("setPhoneState() state %d", state); + + if (state < 0 || state >= AUDIO_MODE_CNT) { + ALOGW("setPhoneState() invalid state %d", state); + return BAD_VALUE; + } + + if (state == mPhoneState ) { + ALOGW("setPhoneState() setting same state %d", state); + return BAD_VALUE; + } + + // store previous phone state for management of sonification strategy below + int oldState = mPhoneState; + mPhoneState = state; + StreamDescriptorCollection &streams = mApmObserver->getStreamDescriptors(); + // are we entering or starting a call + if (!is_state_in_call(oldState) && is_state_in_call(state)) { + ALOGV(" Entering call in setPhoneState()"); + for (int j = 0; j < Volume::DEVICE_CATEGORY_CNT; j++) { + streams.setVolumeCurvePoint(AUDIO_STREAM_DTMF, static_cast<Volume::device_category>(j), + Gains::sVolumeProfiles[AUDIO_STREAM_VOICE_CALL][j]); + } + } else if (is_state_in_call(oldState) && !is_state_in_call(state)) { + ALOGV(" Exiting call in setPhoneState()"); + for (int j = 0; j < Volume::DEVICE_CATEGORY_CNT; j++) { + streams.setVolumeCurvePoint(AUDIO_STREAM_DTMF, static_cast<Volume::device_category>(j), + Gains::sVolumeProfiles[AUDIO_STREAM_DTMF][j]); + } + } + return NO_ERROR; +} + +status_t Engine::setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config) +{ + switch(usage) { + case AUDIO_POLICY_FORCE_FOR_COMMUNICATION: + if (config != AUDIO_POLICY_FORCE_SPEAKER && config != AUDIO_POLICY_FORCE_BT_SCO && + config != AUDIO_POLICY_FORCE_NONE) { + ALOGW("setForceUse() invalid config %d for FOR_COMMUNICATION", config); + return BAD_VALUE; + } + mForceUse[usage] = config; + break; + case AUDIO_POLICY_FORCE_FOR_MEDIA: + if (config != AUDIO_POLICY_FORCE_HEADPHONES && config != AUDIO_POLICY_FORCE_BT_A2DP && + config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && + config != AUDIO_POLICY_FORCE_ANALOG_DOCK && + config != AUDIO_POLICY_FORCE_DIGITAL_DOCK && config != AUDIO_POLICY_FORCE_NONE && + config != AUDIO_POLICY_FORCE_NO_BT_A2DP && config != AUDIO_POLICY_FORCE_SPEAKER ) { + ALOGW("setForceUse() invalid config %d for FOR_MEDIA", config); + return BAD_VALUE; + } + mForceUse[usage] = config; + break; + case AUDIO_POLICY_FORCE_FOR_RECORD: + if (config != AUDIO_POLICY_FORCE_BT_SCO && config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && + config != AUDIO_POLICY_FORCE_NONE) { + ALOGW("setForceUse() invalid config %d for FOR_RECORD", config); + return BAD_VALUE; + } + mForceUse[usage] = config; + break; + case AUDIO_POLICY_FORCE_FOR_DOCK: + if (config != AUDIO_POLICY_FORCE_NONE && config != AUDIO_POLICY_FORCE_BT_CAR_DOCK && + config != AUDIO_POLICY_FORCE_BT_DESK_DOCK && + config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY && + config != AUDIO_POLICY_FORCE_ANALOG_DOCK && + config != AUDIO_POLICY_FORCE_DIGITAL_DOCK) { + ALOGW("setForceUse() invalid config %d for FOR_DOCK", config); + } + mForceUse[usage] = config; + break; + case AUDIO_POLICY_FORCE_FOR_SYSTEM: + if (config != AUDIO_POLICY_FORCE_NONE && + config != AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) { + ALOGW("setForceUse() invalid config %d for FOR_SYSTEM", config); + } + mForceUse[usage] = config; + break; + case AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO: + if (config != AUDIO_POLICY_FORCE_NONE && + config != AUDIO_POLICY_FORCE_HDMI_SYSTEM_AUDIO_ENFORCED) { + ALOGW("setForceUse() invalid config %d forHDMI_SYSTEM_AUDIO", config); + } + mForceUse[usage] = config; + break; + default: + ALOGW("setForceUse() invalid usage %d", usage); + break; + } + return NO_ERROR; +} + +routing_strategy Engine::getStrategyForStream(audio_stream_type_t stream) +{ + // stream to strategy mapping + switch (stream) { + case AUDIO_STREAM_VOICE_CALL: + case AUDIO_STREAM_BLUETOOTH_SCO: + return STRATEGY_PHONE; + case AUDIO_STREAM_RING: + case AUDIO_STREAM_ALARM: + return STRATEGY_SONIFICATION; + case AUDIO_STREAM_NOTIFICATION: + return STRATEGY_SONIFICATION_RESPECTFUL; + case AUDIO_STREAM_DTMF: + return STRATEGY_DTMF; + default: + ALOGE("unknown stream type %d", stream); + case AUDIO_STREAM_SYSTEM: + // NOTE: SYSTEM stream uses MEDIA strategy because muting music and switching outputs + // while key clicks are played produces a poor result + case AUDIO_STREAM_MUSIC: + return STRATEGY_MEDIA; + case AUDIO_STREAM_ENFORCED_AUDIBLE: + return STRATEGY_ENFORCED_AUDIBLE; + case AUDIO_STREAM_TTS: + return STRATEGY_TRANSMITTED_THROUGH_SPEAKER; + case AUDIO_STREAM_ACCESSIBILITY: + return STRATEGY_ACCESSIBILITY; + case AUDIO_STREAM_REROUTING: + return STRATEGY_REROUTING; + } +} + +routing_strategy Engine::getStrategyForUsage(audio_usage_t usage) +{ + const AudioOutputCollection &outputs = mApmObserver->getOutputs(); + + // usage to strategy mapping + switch (usage) { + case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY: + if (outputs.isStreamActive(AUDIO_STREAM_RING) || + outputs.isStreamActive(AUDIO_STREAM_ALARM)) { + return STRATEGY_SONIFICATION; + } + if (isInCall()) { + return STRATEGY_PHONE; + } + return STRATEGY_ACCESSIBILITY; + + case AUDIO_USAGE_MEDIA: + case AUDIO_USAGE_GAME: + case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: + case AUDIO_USAGE_ASSISTANCE_SONIFICATION: + return STRATEGY_MEDIA; + + case AUDIO_USAGE_VOICE_COMMUNICATION: + return STRATEGY_PHONE; + + case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING: + return STRATEGY_DTMF; + + case AUDIO_USAGE_ALARM: + case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE: + return STRATEGY_SONIFICATION; + + case AUDIO_USAGE_NOTIFICATION: + case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST: + case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT: + case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED: + case AUDIO_USAGE_NOTIFICATION_EVENT: + return STRATEGY_SONIFICATION_RESPECTFUL; + + case AUDIO_USAGE_UNKNOWN: + default: + return STRATEGY_MEDIA; + } +} + +audio_devices_t Engine::getDeviceForStrategy(routing_strategy strategy) const +{ + const DeviceVector &availableOutputDevices = mApmObserver->getAvailableOutputDevices(); + const DeviceVector &availableInputDevices = mApmObserver->getAvailableInputDevices(); + + const AudioOutputCollection &outputs = mApmObserver->getOutputs(); + + uint32_t device = AUDIO_DEVICE_NONE; + uint32_t availableOutputDevicesType = availableOutputDevices.types(); + + switch (strategy) { + + case STRATEGY_TRANSMITTED_THROUGH_SPEAKER: + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_SPEAKER; + if (!device) { + ALOGE("getDeviceForStrategy() no device found for "\ + "STRATEGY_TRANSMITTED_THROUGH_SPEAKER"); + } + break; + + case STRATEGY_SONIFICATION_RESPECTFUL: + if (isInCall()) { + device = getDeviceForStrategy(STRATEGY_SONIFICATION); + } else if (outputs.isStreamActiveRemotely(AUDIO_STREAM_MUSIC, + SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { + // while media is playing on a remote device, use the the sonification behavior. + // Note that we test this usecase before testing if media is playing because + // the isStreamActive() method only informs about the activity of a stream, not + // if it's for local playback. Note also that we use the same delay between both tests + device = getDeviceForStrategy(STRATEGY_SONIFICATION); + //user "safe" speaker if available instead of normal speaker to avoid triggering + //other acoustic safety mechanisms for notification + if (device == AUDIO_DEVICE_OUT_SPEAKER && (availableOutputDevicesType & AUDIO_DEVICE_OUT_SPEAKER_SAFE)) + device = AUDIO_DEVICE_OUT_SPEAKER_SAFE; + } else if (outputs.isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { + // while media is playing (or has recently played), use the same device + device = getDeviceForStrategy(STRATEGY_MEDIA); + } else { + // when media is not playing anymore, fall back on the sonification behavior + device = getDeviceForStrategy(STRATEGY_SONIFICATION); + //user "safe" speaker if available instead of normal speaker to avoid triggering + //other acoustic safety mechanisms for notification + if (device == AUDIO_DEVICE_OUT_SPEAKER && (availableOutputDevicesType & AUDIO_DEVICE_OUT_SPEAKER_SAFE)) + device = AUDIO_DEVICE_OUT_SPEAKER_SAFE; + } + break; + + case STRATEGY_DTMF: + if (!isInCall()) { + // when off call, DTMF strategy follows the same rules as MEDIA strategy + device = getDeviceForStrategy(STRATEGY_MEDIA); + break; + } + // when in call, DTMF and PHONE strategies follow the same rules + // FALL THROUGH + + case STRATEGY_PHONE: + // Force use of only devices on primary output if: + // - in call AND + // - cannot route from voice call RX OR + // - audio HAL version is < 3.0 and TX device is on the primary HW module + if (getPhoneState() == AUDIO_MODE_IN_CALL) { + audio_devices_t txDevice = getDeviceForInputSource(AUDIO_SOURCE_VOICE_COMMUNICATION); + sp<AudioOutputDescriptor> primaryOutput = outputs.getPrimaryOutput(); + audio_devices_t availPrimaryInputDevices = + availableInputDevices.getDevicesFromHwModule(primaryOutput->getModuleHandle()); + audio_devices_t availPrimaryOutputDevices = + primaryOutput->supportedDevices() & availableOutputDevices.types(); + + if (((availableInputDevices.types() & + AUDIO_DEVICE_IN_TELEPHONY_RX & ~AUDIO_DEVICE_BIT_IN) == 0) || + (((txDevice & availPrimaryInputDevices & ~AUDIO_DEVICE_BIT_IN) != 0) && + (primaryOutput->getAudioPort()->mModule->mHalVersion < + AUDIO_DEVICE_API_VERSION_3_0))) { + availableOutputDevicesType = availPrimaryOutputDevices; + } + } + // for phone strategy, we first consider the forced use and then the available devices by order + // of priority + switch (mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]) { + case AUDIO_POLICY_FORCE_BT_SCO: + if (!isInCall() || strategy != STRATEGY_DTMF) { + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT; + if (device) break; + } + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET; + if (device) break; + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_BLUETOOTH_SCO; + if (device) break; + // if SCO device is requested but no SCO device is available, fall back to default case + // FALL THROUGH + + default: // FORCE_NONE + // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to A2DP + if (!isInCall() && + (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && + (outputs.getA2dpOutput() != 0)) { + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; + if (device) break; + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; + if (device) break; + } + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; + if (device) break; + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_WIRED_HEADSET; + if (device) break; + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_USB_DEVICE; + if (device) break; + if (!isInCall()) { + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_USB_ACCESSORY; + if (device) break; + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; + if (device) break; + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_AUX_DIGITAL; + if (device) break; + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; + if (device) break; + } + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_EARPIECE; + if (device) break; + device = mApmObserver->getDefaultOutputDevice()->type(); + if (device == AUDIO_DEVICE_NONE) { + ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE"); + } + break; + + case AUDIO_POLICY_FORCE_SPEAKER: + // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to + // A2DP speaker when forcing to speaker output + if (!isInCall() && + (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && + (outputs.getA2dpOutput() != 0)) { + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; + if (device) break; + } + if (!isInCall()) { + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_USB_ACCESSORY; + if (device) break; + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_USB_DEVICE; + if (device) break; + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; + if (device) break; + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_AUX_DIGITAL; + if (device) break; + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; + if (device) break; + } + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_LINE; + if (device) break; + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_SPEAKER; + if (device) break; + device = mApmObserver->getDefaultOutputDevice()->type(); + if (device == AUDIO_DEVICE_NONE) { + ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE, FORCE_SPEAKER"); + } + break; + } + break; + + case STRATEGY_SONIFICATION: + + // If incall, just select the STRATEGY_PHONE device: The rest of the behavior is handled by + // handleIncallSonification(). + if (isInCall()) { + device = getDeviceForStrategy(STRATEGY_PHONE); + break; + } + // FALL THROUGH + + case STRATEGY_ENFORCED_AUDIBLE: + // strategy STRATEGY_ENFORCED_AUDIBLE uses same routing policy as STRATEGY_SONIFICATION + // except: + // - when in call where it doesn't default to STRATEGY_PHONE behavior + // - in countries where not enforced in which case it follows STRATEGY_MEDIA + + if ((strategy == STRATEGY_SONIFICATION) || + (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED)) { + device = availableOutputDevicesType & AUDIO_DEVICE_OUT_SPEAKER; + if (device == AUDIO_DEVICE_NONE) { + ALOGE("getDeviceForStrategy() speaker device not found for STRATEGY_SONIFICATION"); + } + } + // The second device used for sonification is the same as the device used by media strategy + // FALL THROUGH + + // FIXME: STRATEGY_ACCESSIBILITY and STRATEGY_REROUTING follow STRATEGY_MEDIA for now + case STRATEGY_ACCESSIBILITY: + if (strategy == STRATEGY_ACCESSIBILITY) { + // do not route accessibility prompts to a digital output currently configured with a + // compressed format as they would likely not be mixed and dropped. + for (size_t i = 0; i < outputs.size(); i++) { + sp<AudioOutputDescriptor> desc = outputs.valueAt(i); + audio_devices_t devices = desc->device() & + (AUDIO_DEVICE_OUT_HDMI | AUDIO_DEVICE_OUT_SPDIF | AUDIO_DEVICE_OUT_HDMI_ARC); + if (desc->isActive() && !audio_is_linear_pcm(desc->mFormat) && + devices != AUDIO_DEVICE_NONE) { + availableOutputDevicesType = availableOutputDevices.types() & ~devices; + } + } + } + // FALL THROUGH + + case STRATEGY_REROUTING: + case STRATEGY_MEDIA: { + uint32_t device2 = AUDIO_DEVICE_NONE; + if (strategy != STRATEGY_SONIFICATION) { + // no sonification on remote submix (e.g. WFD) + if (availableOutputDevices.getDevice(AUDIO_DEVICE_OUT_REMOTE_SUBMIX, String8("0")) != 0) { + device2 = availableOutputDevices.types() & AUDIO_DEVICE_OUT_REMOTE_SUBMIX; + } + } + if ((device2 == AUDIO_DEVICE_NONE) && + (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) && + (outputs.getA2dpOutput() != 0)) { + device2 = availableOutputDevicesType & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; + if (device2 == AUDIO_DEVICE_NONE) { + device2 = availableOutputDevicesType & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; + } + if (device2 == AUDIO_DEVICE_NONE) { + device2 = availableOutputDevicesType & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; + } + } + if ((device2 == AUDIO_DEVICE_NONE) && + (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] == AUDIO_POLICY_FORCE_SPEAKER)) { + device2 = availableOutputDevicesType & AUDIO_DEVICE_OUT_SPEAKER; + } + if (device2 == AUDIO_DEVICE_NONE) { + device2 = availableOutputDevicesType & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; + } + if ((device2 == AUDIO_DEVICE_NONE)) { + device2 = availableOutputDevicesType & AUDIO_DEVICE_OUT_LINE; + } + if (device2 == AUDIO_DEVICE_NONE) { + device2 = availableOutputDevicesType & AUDIO_DEVICE_OUT_WIRED_HEADSET; + } + if (device2 == AUDIO_DEVICE_NONE) { + device2 = availableOutputDevicesType & AUDIO_DEVICE_OUT_USB_ACCESSORY; + } + if (device2 == AUDIO_DEVICE_NONE) { + device2 = availableOutputDevicesType & AUDIO_DEVICE_OUT_USB_DEVICE; + } + if (device2 == AUDIO_DEVICE_NONE) { + device2 = availableOutputDevicesType & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; + } + if ((device2 == AUDIO_DEVICE_NONE) && (strategy != STRATEGY_SONIFICATION)) { + // no sonification on aux digital (e.g. HDMI) + device2 = availableOutputDevicesType & AUDIO_DEVICE_OUT_AUX_DIGITAL; + } + if ((device2 == AUDIO_DEVICE_NONE) && + (mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK] == AUDIO_POLICY_FORCE_ANALOG_DOCK)) { + device2 = availableOutputDevicesType & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; + } + if (device2 == AUDIO_DEVICE_NONE) { + device2 = availableOutputDevicesType & AUDIO_DEVICE_OUT_SPEAKER; + } + int device3 = AUDIO_DEVICE_NONE; + if (strategy == STRATEGY_MEDIA) { + // ARC, SPDIF and AUX_LINE can co-exist with others. + device3 = availableOutputDevicesType & AUDIO_DEVICE_OUT_HDMI_ARC; + device3 |= (availableOutputDevicesType & AUDIO_DEVICE_OUT_SPDIF); + device3 |= (availableOutputDevicesType & AUDIO_DEVICE_OUT_AUX_LINE); + } + + device2 |= device3; + // device is DEVICE_OUT_SPEAKER if we come from case STRATEGY_SONIFICATION or + // STRATEGY_ENFORCED_AUDIBLE, AUDIO_DEVICE_NONE otherwise + device |= device2; + + // If hdmi system audio mode is on, remove speaker out of output list. + if ((strategy == STRATEGY_MEDIA) && + (mForceUse[AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO] == + AUDIO_POLICY_FORCE_HDMI_SYSTEM_AUDIO_ENFORCED)) { + device &= ~AUDIO_DEVICE_OUT_SPEAKER; + } + + if (device) break; + device = mApmObserver->getDefaultOutputDevice()->type(); + if (device == AUDIO_DEVICE_NONE) { + ALOGE("getDeviceForStrategy() no device found for STRATEGY_MEDIA"); + } + } break; + + default: + ALOGW("getDeviceForStrategy() unknown strategy: %d", strategy); + break; + } + + ALOGVV("getDeviceForStrategy() strategy %d, device %x", strategy, device); + return device; +} + + +audio_devices_t Engine::getDeviceForInputSource(audio_source_t inputSource) const +{ + const DeviceVector &availableOutputDevices = mApmObserver->getAvailableOutputDevices(); + const DeviceVector &availableInputDevices = mApmObserver->getAvailableInputDevices(); + const AudioOutputCollection &outputs = mApmObserver->getOutputs(); + audio_devices_t availableDeviceTypes = availableInputDevices.types() & ~AUDIO_DEVICE_BIT_IN; + + uint32_t device = AUDIO_DEVICE_NONE; + + switch (inputSource) { + case AUDIO_SOURCE_VOICE_UPLINK: + if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) { + device = AUDIO_DEVICE_IN_VOICE_CALL; + break; + } + break; + + case AUDIO_SOURCE_DEFAULT: + case AUDIO_SOURCE_MIC: + if (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_A2DP) { + device = AUDIO_DEVICE_IN_BLUETOOTH_A2DP; + } else if ((mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO) && + (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET)) { + device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; + } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { + device = AUDIO_DEVICE_IN_WIRED_HEADSET; + } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { + device = AUDIO_DEVICE_IN_USB_DEVICE; + } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { + device = AUDIO_DEVICE_IN_BUILTIN_MIC; + } + break; + + case AUDIO_SOURCE_VOICE_COMMUNICATION: + // Allow only use of devices on primary input if in call and HAL does not support routing + // to voice call path. + if ((getPhoneState() == AUDIO_MODE_IN_CALL) && + (availableOutputDevices.types() & AUDIO_DEVICE_OUT_TELEPHONY_TX) == 0) { + sp<AudioOutputDescriptor> primaryOutput = outputs.getPrimaryOutput(); + availableDeviceTypes = + availableInputDevices.getDevicesFromHwModule(primaryOutput->getModuleHandle()) + & ~AUDIO_DEVICE_BIT_IN; + } + + switch (mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]) { + case AUDIO_POLICY_FORCE_BT_SCO: + // if SCO device is requested but no SCO device is available, fall back to default case + if (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) { + device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; + break; + } + // FALL THROUGH + + default: // FORCE_NONE + if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { + device = AUDIO_DEVICE_IN_WIRED_HEADSET; + } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { + device = AUDIO_DEVICE_IN_USB_DEVICE; + } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { + device = AUDIO_DEVICE_IN_BUILTIN_MIC; + } + break; + + case AUDIO_POLICY_FORCE_SPEAKER: + if (availableDeviceTypes & AUDIO_DEVICE_IN_BACK_MIC) { + device = AUDIO_DEVICE_IN_BACK_MIC; + } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { + device = AUDIO_DEVICE_IN_BUILTIN_MIC; + } + break; + } + break; + + case AUDIO_SOURCE_VOICE_RECOGNITION: + case AUDIO_SOURCE_HOTWORD: + if (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO && + availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) { + device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; + } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) { + device = AUDIO_DEVICE_IN_WIRED_HEADSET; + } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) { + device = AUDIO_DEVICE_IN_USB_DEVICE; + } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { + device = AUDIO_DEVICE_IN_BUILTIN_MIC; + } + break; + case AUDIO_SOURCE_CAMCORDER: + if (availableDeviceTypes & AUDIO_DEVICE_IN_BACK_MIC) { + device = AUDIO_DEVICE_IN_BACK_MIC; + } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) { + device = AUDIO_DEVICE_IN_BUILTIN_MIC; + } + break; + case AUDIO_SOURCE_VOICE_DOWNLINK: + case AUDIO_SOURCE_VOICE_CALL: + if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) { + device = AUDIO_DEVICE_IN_VOICE_CALL; + } + break; + case AUDIO_SOURCE_REMOTE_SUBMIX: + if (availableDeviceTypes & AUDIO_DEVICE_IN_REMOTE_SUBMIX) { + device = AUDIO_DEVICE_IN_REMOTE_SUBMIX; + } + break; + case AUDIO_SOURCE_FM_TUNER: + if (availableDeviceTypes & AUDIO_DEVICE_IN_FM_TUNER) { + device = AUDIO_DEVICE_IN_FM_TUNER; + } + break; + default: + ALOGW("getDeviceForInputSource() invalid input source %d", inputSource); + break; + } + ALOGV("getDeviceForInputSource()input source %d, device %08x", inputSource, device); + return device; +} + +template <> +AudioPolicyManagerInterface *Engine::queryInterface() +{ + return &mManagerInterface; +} + +} // namespace audio_policy +} // namespace android + + |