| /* |
| ** |
| ** Copyright 2014, 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 "AudioFlinger::PatchPanel" |
| //#define LOG_NDEBUG 0 |
| |
| #include "Configuration.h" |
| #include <utils/Log.h> |
| #include <audio_utils/primitives.h> |
| |
| #include "AudioFlinger.h" |
| #include <media/AudioParameter.h> |
| #include <media/PatchBuilder.h> |
| #include <mediautils/ServiceUtilities.h> |
| |
| // ---------------------------------------------------------------------------- |
| |
| // Note: the following macro is used for extremely verbose logging message. In |
| // order to run with ALOG_ASSERT turned on, we need to have LOG_NDEBUG set to |
| // 0; but one side effect of this is to turn all LOGV's as well. Some messages |
| // are so verbose that we want to suppress them even when we have ALOG_ASSERT |
| // turned on. Do not uncomment the #def below unless you really know what you |
| // are doing and want to see all of the extremely verbose messages. |
| //#define VERY_VERY_VERBOSE_LOGGING |
| #ifdef VERY_VERY_VERBOSE_LOGGING |
| #define ALOGVV ALOGV |
| #else |
| #define ALOGVV(a...) do { } while(0) |
| #endif |
| |
| namespace android { |
| |
| /* List connected audio ports and their attributes */ |
| status_t AudioFlinger::listAudioPorts(unsigned int *num_ports, |
| struct audio_port *ports) |
| { |
| Mutex::Autolock _l(mLock); |
| return mPatchPanel.listAudioPorts(num_ports, ports); |
| } |
| |
| /* Get supported attributes for a given audio port */ |
| status_t AudioFlinger::getAudioPort(struct audio_port *port) |
| { |
| Mutex::Autolock _l(mLock); |
| return mPatchPanel.getAudioPort(port); |
| } |
| |
| /* Connect a patch between several source and sink ports */ |
| status_t AudioFlinger::createAudioPatch(const struct audio_patch *patch, |
| audio_patch_handle_t *handle) |
| { |
| Mutex::Autolock _l(mLock); |
| return mPatchPanel.createAudioPatch(patch, handle); |
| } |
| |
| /* Disconnect a patch */ |
| status_t AudioFlinger::releaseAudioPatch(audio_patch_handle_t handle) |
| { |
| Mutex::Autolock _l(mLock); |
| return mPatchPanel.releaseAudioPatch(handle); |
| } |
| |
| /* List connected audio ports and they attributes */ |
| status_t AudioFlinger::listAudioPatches(unsigned int *num_patches, |
| struct audio_patch *patches) |
| { |
| Mutex::Autolock _l(mLock); |
| return mPatchPanel.listAudioPatches(num_patches, patches); |
| } |
| |
| status_t AudioFlinger::PatchPanel::SoftwarePatch::getLatencyMs_l(double *latencyMs) const |
| { |
| const auto& iter = mPatchPanel.mPatches.find(mPatchHandle); |
| if (iter != mPatchPanel.mPatches.end()) { |
| return iter->second.getLatencyMs(latencyMs); |
| } else { |
| return BAD_VALUE; |
| } |
| } |
| |
| /* List connected audio ports and their attributes */ |
| status_t AudioFlinger::PatchPanel::listAudioPorts(unsigned int *num_ports __unused, |
| struct audio_port *ports __unused) |
| { |
| ALOGV(__func__); |
| return NO_ERROR; |
| } |
| |
| /* Get supported attributes for a given audio port */ |
| status_t AudioFlinger::PatchPanel::getAudioPort(struct audio_port *port __unused) |
| { |
| ALOGV(__func__); |
| return NO_ERROR; |
| } |
| |
| /* Connect a patch between several source and sink ports */ |
| status_t AudioFlinger::PatchPanel::createAudioPatch(const struct audio_patch *patch, |
| audio_patch_handle_t *handle) |
| { |
| if (handle == NULL || patch == NULL) { |
| return BAD_VALUE; |
| } |
| ALOGV("%s() num_sources %d num_sinks %d handle %d", |
| __func__, patch->num_sources, patch->num_sinks, *handle); |
| status_t status = NO_ERROR; |
| audio_patch_handle_t halHandle = AUDIO_PATCH_HANDLE_NONE; |
| |
| if (!audio_patch_is_valid(patch) || (patch->num_sinks == 0 && patch->num_sources != 2)) { |
| return BAD_VALUE; |
| } |
| // limit number of sources to 1 for now or 2 sources for special cross hw module case. |
| // only the audio policy manager can request a patch creation with 2 sources. |
| if (patch->num_sources > 2) { |
| return INVALID_OPERATION; |
| } |
| |
| if (*handle != AUDIO_PATCH_HANDLE_NONE) { |
| auto iter = mPatches.find(*handle); |
| if (iter != mPatches.end()) { |
| ALOGV("%s() removing patch handle %d", __func__, *handle); |
| Patch &removedPatch = iter->second; |
| // free resources owned by the removed patch if applicable |
| // 1) if a software patch is present, release the playback and capture threads and |
| // tracks created. This will also release the corresponding audio HAL patches |
| if (removedPatch.isSoftware()) { |
| removedPatch.clearConnections(this); |
| } |
| // 2) if the new patch and old patch source or sink are devices from different |
| // hw modules, clear the audio HAL patches now because they will not be updated |
| // by call to create_audio_patch() below which will happen on a different HW module |
| if (removedPatch.mHalHandle != AUDIO_PATCH_HANDLE_NONE) { |
| audio_module_handle_t hwModule = AUDIO_MODULE_HANDLE_NONE; |
| const struct audio_patch &oldPatch = removedPatch.mAudioPatch; |
| if (oldPatch.sources[0].type == AUDIO_PORT_TYPE_DEVICE && |
| (patch->sources[0].type != AUDIO_PORT_TYPE_DEVICE || |
| oldPatch.sources[0].ext.device.hw_module != |
| patch->sources[0].ext.device.hw_module)) { |
| hwModule = oldPatch.sources[0].ext.device.hw_module; |
| } else if (patch->num_sinks == 0 || |
| (oldPatch.sinks[0].type == AUDIO_PORT_TYPE_DEVICE && |
| (patch->sinks[0].type != AUDIO_PORT_TYPE_DEVICE || |
| oldPatch.sinks[0].ext.device.hw_module != |
| patch->sinks[0].ext.device.hw_module))) { |
| // Note on (patch->num_sinks == 0): this situation should not happen as |
| // these special patches are only created by the policy manager but just |
| // in case, systematically clear the HAL patch. |
| // Note that removedPatch.mAudioPatch.num_sinks cannot be 0 here because |
| // removedPatch.mHalHandle would be AUDIO_PATCH_HANDLE_NONE in this case. |
| hwModule = oldPatch.sinks[0].ext.device.hw_module; |
| } |
| sp<DeviceHalInterface> hwDevice = findHwDeviceByModule(hwModule); |
| if (hwDevice != 0) { |
| hwDevice->releaseAudioPatch(removedPatch.mHalHandle); |
| } |
| } |
| mPatches.erase(iter); |
| removeSoftwarePatchFromInsertedModules(*handle); |
| } |
| } |
| |
| Patch newPatch{*patch}; |
| audio_module_handle_t insertedModule = AUDIO_MODULE_HANDLE_NONE; |
| |
| switch (patch->sources[0].type) { |
| case AUDIO_PORT_TYPE_DEVICE: { |
| audio_module_handle_t srcModule = patch->sources[0].ext.device.hw_module; |
| AudioHwDevice *audioHwDevice = findAudioHwDeviceByModule(srcModule); |
| if (!audioHwDevice) { |
| status = BAD_VALUE; |
| goto exit; |
| } |
| for (unsigned int i = 0; i < patch->num_sinks; i++) { |
| // support only one sink if connection to a mix or across HW modules |
| if ((patch->sinks[i].type == AUDIO_PORT_TYPE_MIX || |
| (patch->sinks[i].type == AUDIO_PORT_TYPE_DEVICE && |
| patch->sinks[i].ext.device.hw_module != srcModule)) && |
| patch->num_sinks > 1) { |
| ALOGW("%s() multiple sinks for mix or across modules not supported", __func__); |
| status = INVALID_OPERATION; |
| goto exit; |
| } |
| // reject connection to different sink types |
| if (patch->sinks[i].type != patch->sinks[0].type) { |
| ALOGW("%s() different sink types in same patch not supported", __func__); |
| status = BAD_VALUE; |
| goto exit; |
| } |
| } |
| |
| // manage patches requiring a software bridge |
| // - special patch request with 2 sources (reuse one existing output mix) OR |
| // - Device to device AND |
| // - source HW module != destination HW module OR |
| // - audio HAL does not support audio patches creation |
| if ((patch->num_sources == 2) || |
| ((patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) && |
| ((patch->sinks[0].ext.device.hw_module != srcModule) || |
| !audioHwDevice->supportsAudioPatches()))) { |
| audio_devices_t outputDevice = patch->sinks[0].ext.device.type; |
| String8 outputDeviceAddress = String8(patch->sinks[0].ext.device.address); |
| if (patch->num_sources == 2) { |
| if (patch->sources[1].type != AUDIO_PORT_TYPE_MIX || |
| (patch->num_sinks != 0 && patch->sinks[0].ext.device.hw_module != |
| patch->sources[1].ext.mix.hw_module)) { |
| ALOGW("%s() invalid source combination", __func__); |
| status = INVALID_OPERATION; |
| goto exit; |
| } |
| |
| sp<ThreadBase> thread = |
| mAudioFlinger.checkPlaybackThread_l(patch->sources[1].ext.mix.handle); |
| if (thread == 0) { |
| ALOGW("%s() cannot get playback thread", __func__); |
| status = INVALID_OPERATION; |
| goto exit; |
| } |
| // existing playback thread is reused, so it is not closed when patch is cleared |
| newPatch.mPlayback.setThread( |
| reinterpret_cast<PlaybackThread*>(thread.get()), false /*closeThread*/); |
| } else { |
| audio_config_t config = AUDIO_CONFIG_INITIALIZER; |
| audio_io_handle_t output = AUDIO_IO_HANDLE_NONE; |
| audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE; |
| if (patch->sinks[0].config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { |
| config.sample_rate = patch->sinks[0].sample_rate; |
| } |
| if (patch->sinks[0].config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { |
| config.channel_mask = patch->sinks[0].channel_mask; |
| } |
| if (patch->sinks[0].config_mask & AUDIO_PORT_CONFIG_FORMAT) { |
| config.format = patch->sinks[0].format; |
| } |
| if (patch->sinks[0].config_mask & AUDIO_PORT_CONFIG_FLAGS) { |
| flags = patch->sinks[0].flags.output; |
| } |
| sp<ThreadBase> thread = mAudioFlinger.openOutput_l( |
| patch->sinks[0].ext.device.hw_module, |
| &output, |
| &config, |
| outputDevice, |
| outputDeviceAddress, |
| flags); |
| ALOGV("mAudioFlinger.openOutput_l() returned %p", thread.get()); |
| if (thread == 0) { |
| status = NO_MEMORY; |
| goto exit; |
| } |
| newPatch.mPlayback.setThread(reinterpret_cast<PlaybackThread*>(thread.get())); |
| } |
| audio_devices_t device = patch->sources[0].ext.device.type; |
| String8 address = String8(patch->sources[0].ext.device.address); |
| audio_config_t config = AUDIO_CONFIG_INITIALIZER; |
| // open input stream with source device audio properties if provided or |
| // default to peer output stream properties otherwise. |
| if (patch->sources[0].config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { |
| config.sample_rate = patch->sources[0].sample_rate; |
| } else { |
| config.sample_rate = newPatch.mPlayback.thread()->sampleRate(); |
| } |
| if (patch->sources[0].config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { |
| config.channel_mask = patch->sources[0].channel_mask; |
| } else { |
| config.channel_mask = audio_channel_in_mask_from_count( |
| newPatch.mPlayback.thread()->channelCount()); |
| } |
| if (patch->sources[0].config_mask & AUDIO_PORT_CONFIG_FORMAT) { |
| config.format = patch->sources[0].format; |
| } else { |
| config.format = newPatch.mPlayback.thread()->format(); |
| } |
| audio_input_flags_t flags = |
| patch->sources[0].config_mask & AUDIO_PORT_CONFIG_FLAGS ? |
| patch->sources[0].flags.input : AUDIO_INPUT_FLAG_NONE; |
| audio_io_handle_t input = AUDIO_IO_HANDLE_NONE; |
| sp<ThreadBase> thread = mAudioFlinger.openInput_l(srcModule, |
| &input, |
| &config, |
| device, |
| address, |
| AUDIO_SOURCE_MIC, |
| flags, |
| outputDevice, |
| outputDeviceAddress); |
| ALOGV("mAudioFlinger.openInput_l() returned %p inChannelMask %08x", |
| thread.get(), config.channel_mask); |
| if (thread == 0) { |
| status = NO_MEMORY; |
| goto exit; |
| } |
| newPatch.mRecord.setThread(reinterpret_cast<RecordThread*>(thread.get())); |
| status = newPatch.createConnections(this); |
| if (status != NO_ERROR) { |
| goto exit; |
| } |
| if (audioHwDevice->isInsert()) { |
| insertedModule = audioHwDevice->handle(); |
| } |
| } else { |
| if (patch->sinks[0].type == AUDIO_PORT_TYPE_MIX) { |
| sp<ThreadBase> thread = mAudioFlinger.checkRecordThread_l( |
| patch->sinks[0].ext.mix.handle); |
| if (thread == 0) { |
| thread = mAudioFlinger.checkMmapThread_l(patch->sinks[0].ext.mix.handle); |
| if (thread == 0) { |
| ALOGW("%s() bad capture I/O handle %d", |
| __func__, patch->sinks[0].ext.mix.handle); |
| status = BAD_VALUE; |
| goto exit; |
| } |
| } |
| status = thread->sendCreateAudioPatchConfigEvent(patch, &halHandle); |
| // remove stale audio patch with same input as sink if any |
| for (auto& iter : mPatches) { |
| if (iter.second.mAudioPatch.sinks[0].ext.mix.handle == thread->id()) { |
| mPatches.erase(iter.first); |
| break; |
| } |
| } |
| } else { |
| sp<DeviceHalInterface> hwDevice = audioHwDevice->hwDevice(); |
| status = hwDevice->createAudioPatch(patch->num_sources, |
| patch->sources, |
| patch->num_sinks, |
| patch->sinks, |
| &halHandle); |
| if (status == INVALID_OPERATION) goto exit; |
| } |
| } |
| } break; |
| case AUDIO_PORT_TYPE_MIX: { |
| audio_module_handle_t srcModule = patch->sources[0].ext.mix.hw_module; |
| ssize_t index = mAudioFlinger.mAudioHwDevs.indexOfKey(srcModule); |
| if (index < 0) { |
| ALOGW("%s() bad src hw module %d", __func__, srcModule); |
| status = BAD_VALUE; |
| goto exit; |
| } |
| // limit to connections between devices and output streams |
| audio_devices_t type = AUDIO_DEVICE_NONE; |
| for (unsigned int i = 0; i < patch->num_sinks; i++) { |
| if (patch->sinks[i].type != AUDIO_PORT_TYPE_DEVICE) { |
| ALOGW("%s() invalid sink type %d for mix source", |
| __func__, patch->sinks[i].type); |
| status = BAD_VALUE; |
| goto exit; |
| } |
| // limit to connections between sinks and sources on same HW module |
| if (patch->sinks[i].ext.device.hw_module != srcModule) { |
| status = BAD_VALUE; |
| goto exit; |
| } |
| type |= patch->sinks[i].ext.device.type; |
| } |
| sp<ThreadBase> thread = |
| mAudioFlinger.checkPlaybackThread_l(patch->sources[0].ext.mix.handle); |
| if (thread == 0) { |
| thread = mAudioFlinger.checkMmapThread_l(patch->sources[0].ext.mix.handle); |
| if (thread == 0) { |
| ALOGW("%s() bad playback I/O handle %d", |
| __func__, patch->sources[0].ext.mix.handle); |
| status = BAD_VALUE; |
| goto exit; |
| } |
| } |
| if (thread == mAudioFlinger.primaryPlaybackThread_l()) { |
| AudioParameter param = AudioParameter(); |
| param.addInt(String8(AudioParameter::keyRouting), (int)type); |
| |
| mAudioFlinger.broacastParametersToRecordThreads_l(param.toString()); |
| } |
| |
| status = thread->sendCreateAudioPatchConfigEvent(patch, &halHandle); |
| |
| // remove stale audio patch with same output as source if any |
| for (auto& iter : mPatches) { |
| if (iter.second.mAudioPatch.sources[0].ext.mix.handle == thread->id()) { |
| mPatches.erase(iter.first); |
| break; |
| } |
| } |
| } break; |
| default: |
| status = BAD_VALUE; |
| goto exit; |
| } |
| exit: |
| ALOGV("%s() status %d", __func__, status); |
| if (status == NO_ERROR) { |
| *handle = (audio_patch_handle_t) mAudioFlinger.nextUniqueId(AUDIO_UNIQUE_ID_USE_PATCH); |
| newPatch.mHalHandle = halHandle; |
| mPatches.insert(std::make_pair(*handle, std::move(newPatch))); |
| if (insertedModule != AUDIO_MODULE_HANDLE_NONE) { |
| addSoftwarePatchToInsertedModules(insertedModule, *handle); |
| } |
| ALOGV("%s() added new patch handle %d halHandle %d", __func__, *handle, halHandle); |
| } else { |
| newPatch.clearConnections(this); |
| } |
| return status; |
| } |
| |
| AudioFlinger::PatchPanel::Patch::~Patch() |
| { |
| ALOGE_IF(isSoftware(), "Software patch connections leaked %d %d", |
| mRecord.handle(), mPlayback.handle()); |
| } |
| |
| status_t AudioFlinger::PatchPanel::Patch::createConnections(PatchPanel *panel) |
| { |
| // create patch from source device to record thread input |
| status_t status = panel->createAudioPatch( |
| PatchBuilder().addSource(mAudioPatch.sources[0]). |
| addSink(mRecord.thread(), { .source = AUDIO_SOURCE_MIC }).patch(), |
| mRecord.handlePtr()); |
| if (status != NO_ERROR) { |
| *mRecord.handlePtr() = AUDIO_PATCH_HANDLE_NONE; |
| return status; |
| } |
| |
| // create patch from playback thread output to sink device |
| if (mAudioPatch.num_sinks != 0) { |
| status = panel->createAudioPatch( |
| PatchBuilder().addSource(mPlayback.thread()).addSink(mAudioPatch.sinks[0]).patch(), |
| mPlayback.handlePtr()); |
| if (status != NO_ERROR) { |
| *mPlayback.handlePtr() = AUDIO_PATCH_HANDLE_NONE; |
| return status; |
| } |
| } else { |
| *mPlayback.handlePtr() = AUDIO_PATCH_HANDLE_NONE; |
| } |
| |
| // use a pseudo LCM between input and output framecount |
| size_t playbackFrameCount = mPlayback.thread()->frameCount(); |
| int playbackShift = __builtin_ctz(playbackFrameCount); |
| size_t recordFrameCount = mRecord.thread()->frameCount(); |
| int shift = __builtin_ctz(recordFrameCount); |
| if (playbackShift < shift) { |
| shift = playbackShift; |
| } |
| size_t frameCount = (playbackFrameCount * recordFrameCount) >> shift; |
| ALOGV("%s() playframeCount %zu recordFrameCount %zu frameCount %zu", |
| __func__, playbackFrameCount, recordFrameCount, frameCount); |
| |
| // create a special record track to capture from record thread |
| uint32_t channelCount = mPlayback.thread()->channelCount(); |
| audio_channel_mask_t inChannelMask = audio_channel_in_mask_from_count(channelCount); |
| audio_channel_mask_t outChannelMask = mPlayback.thread()->channelMask(); |
| uint32_t sampleRate = mPlayback.thread()->sampleRate(); |
| audio_format_t format = mPlayback.thread()->format(); |
| |
| audio_format_t inputFormat = mRecord.thread()->format(); |
| if (!audio_is_linear_pcm(inputFormat)) { |
| // The playbackThread format will say PCM for IEC61937 packetized stream. |
| // Use recordThread format. |
| format = inputFormat; |
| } |
| audio_input_flags_t inputFlags = mAudioPatch.sources[0].config_mask & AUDIO_PORT_CONFIG_FLAGS ? |
| mAudioPatch.sources[0].flags.input : AUDIO_INPUT_FLAG_NONE; |
| if (sampleRate == mRecord.thread()->sampleRate() && |
| inChannelMask == mRecord.thread()->channelMask() && |
| mRecord.thread()->fastTrackAvailable() && |
| mRecord.thread()->hasFastCapture()) { |
| // Create a fast track if the record thread has fast capture to get better performance. |
| // Only enable fast mode when there is no resample needed. |
| inputFlags = (audio_input_flags_t) (inputFlags | AUDIO_INPUT_FLAG_FAST); |
| } else { |
| // Fast mode is not available in this case. |
| inputFlags = (audio_input_flags_t) (inputFlags & ~AUDIO_INPUT_FLAG_FAST); |
| } |
| sp<RecordThread::PatchRecord> tempRecordTrack = new (std::nothrow) RecordThread::PatchRecord( |
| mRecord.thread().get(), |
| sampleRate, |
| inChannelMask, |
| format, |
| frameCount, |
| NULL, |
| (size_t)0 /* bufferSize */, |
| inputFlags); |
| status = mRecord.checkTrack(tempRecordTrack.get()); |
| if (status != NO_ERROR) { |
| return status; |
| } |
| |
| audio_output_flags_t outputFlags = mAudioPatch.sinks[0].config_mask & AUDIO_PORT_CONFIG_FLAGS ? |
| mAudioPatch.sinks[0].flags.output : AUDIO_OUTPUT_FLAG_NONE; |
| audio_stream_type_t streamType = AUDIO_STREAM_PATCH; |
| if (mAudioPatch.num_sources == 2 && mAudioPatch.sources[1].type == AUDIO_PORT_TYPE_MIX) { |
| // "reuse one existing output mix" case |
| streamType = mAudioPatch.sources[1].ext.mix.usecase.stream; |
| } |
| if (mPlayback.thread()->hasFastMixer()) { |
| // Create a fast track if the playback thread has fast mixer to get better performance. |
| // Note: we should have matching channel mask, sample rate, and format by the logic above. |
| outputFlags = (audio_output_flags_t) (outputFlags | AUDIO_OUTPUT_FLAG_FAST); |
| } else { |
| outputFlags = (audio_output_flags_t) (outputFlags & ~AUDIO_OUTPUT_FLAG_FAST); |
| } |
| |
| // create a special playback track to render to playback thread. |
| // this track is given the same buffer as the PatchRecord buffer |
| sp<PlaybackThread::PatchTrack> tempPatchTrack = new (std::nothrow) PlaybackThread::PatchTrack( |
| mPlayback.thread().get(), |
| streamType, |
| sampleRate, |
| outChannelMask, |
| format, |
| frameCount, |
| tempRecordTrack->buffer(), |
| tempRecordTrack->bufferSize(), |
| outputFlags); |
| status = mPlayback.checkTrack(tempPatchTrack.get()); |
| if (status != NO_ERROR) { |
| return status; |
| } |
| |
| // tie playback and record tracks together |
| mRecord.setTrackAndPeer(tempRecordTrack, tempPatchTrack); |
| mPlayback.setTrackAndPeer(tempPatchTrack, tempRecordTrack); |
| |
| // start capture and playback |
| mRecord.track()->start(AudioSystem::SYNC_EVENT_NONE, AUDIO_SESSION_NONE); |
| mPlayback.track()->start(); |
| |
| return status; |
| } |
| |
| void AudioFlinger::PatchPanel::Patch::clearConnections(PatchPanel *panel) |
| { |
| ALOGV("%s() mRecord.handle %d mPlayback.handle %d", |
| __func__, mRecord.handle(), mPlayback.handle()); |
| mRecord.stopTrack(); |
| mPlayback.stopTrack(); |
| mRecord.clearTrackPeer(); // mRecord stop is synchronous. Break PeerProxy sp<> cycle. |
| mRecord.closeConnections(panel); |
| mPlayback.closeConnections(panel); |
| } |
| |
| status_t AudioFlinger::PatchPanel::Patch::getLatencyMs(double *latencyMs) const |
| { |
| if (!isSoftware()) return INVALID_OPERATION; |
| |
| auto recordTrack = mRecord.const_track(); |
| if (recordTrack.get() == nullptr) return INVALID_OPERATION; |
| |
| auto playbackTrack = mPlayback.const_track(); |
| if (playbackTrack.get() == nullptr) return INVALID_OPERATION; |
| |
| // Latency information for tracks may be called without obtaining |
| // the underlying thread lock. |
| // |
| // We use record server latency + playback track latency (generally smaller than the |
| // reverse due to internal biases). |
| // |
| // TODO: is this stable enough? Consider a PatchTrack synchronized version of this. |
| |
| // For PCM tracks get server latency. |
| if (audio_is_linear_pcm(recordTrack->format())) { |
| double recordServerLatencyMs, playbackTrackLatencyMs; |
| if (recordTrack->getServerLatencyMs(&recordServerLatencyMs) == OK |
| && playbackTrack->getTrackLatencyMs(&playbackTrackLatencyMs) == OK) { |
| *latencyMs = recordServerLatencyMs + playbackTrackLatencyMs; |
| return OK; |
| } |
| } |
| |
| // See if kernel latencies are available. |
| // If so, do a frame diff and time difference computation to estimate |
| // the total patch latency. This requires that frame counts are reported by the |
| // HAL are matched properly in the case of record overruns and playback underruns. |
| ThreadBase::TrackBase::FrameTime recordFT{}, playFT{}; |
| recordTrack->getKernelFrameTime(&recordFT); |
| playbackTrack->getKernelFrameTime(&playFT); |
| if (recordFT.timeNs > 0 && playFT.timeNs > 0) { |
| const int64_t frameDiff = recordFT.frames - playFT.frames; |
| const int64_t timeDiffNs = recordFT.timeNs - playFT.timeNs; |
| |
| // It is possible that the patch track and patch record have a large time disparity because |
| // one thread runs but another is stopped. We arbitrarily choose the maximum timestamp |
| // time difference based on how often we expect the timestamps to update in normal operation |
| // (typical should be no more than 50 ms). |
| // |
| // If the timestamps aren't sampled close enough, the patch latency is not |
| // considered valid. |
| // |
| // TODO: change this based on more experiments. |
| constexpr int64_t maxValidTimeDiffNs = 200 * NANOS_PER_MILLISECOND; |
| if (std::abs(timeDiffNs) < maxValidTimeDiffNs) { |
| *latencyMs = frameDiff * 1e3 / recordTrack->sampleRate() |
| - timeDiffNs * 1e-6; |
| return OK; |
| } |
| } |
| |
| return INVALID_OPERATION; |
| } |
| |
| String8 AudioFlinger::PatchPanel::Patch::dump(audio_patch_handle_t myHandle) const |
| { |
| // TODO: Consider table dump form for patches, just like tracks. |
| String8 result = String8::format("Patch %d: thread %p => thread %p", |
| myHandle, mRecord.const_thread().get(), mPlayback.const_thread().get()); |
| |
| // add latency if it exists |
| double latencyMs; |
| if (getLatencyMs(&latencyMs) == OK) { |
| result.appendFormat(" latency: %.2lf ms", latencyMs); |
| } |
| return result; |
| } |
| |
| /* Disconnect a patch */ |
| status_t AudioFlinger::PatchPanel::releaseAudioPatch(audio_patch_handle_t handle) |
| { |
| ALOGV("%s handle %d", __func__, handle); |
| status_t status = NO_ERROR; |
| |
| auto iter = mPatches.find(handle); |
| if (iter == mPatches.end()) { |
| return BAD_VALUE; |
| } |
| Patch &removedPatch = iter->second; |
| const struct audio_patch &patch = removedPatch.mAudioPatch; |
| |
| const struct audio_port_config &src = patch.sources[0]; |
| switch (src.type) { |
| case AUDIO_PORT_TYPE_DEVICE: { |
| sp<DeviceHalInterface> hwDevice = findHwDeviceByModule(src.ext.device.hw_module); |
| if (hwDevice == 0) { |
| ALOGW("%s() bad src hw module %d", __func__, src.ext.device.hw_module); |
| status = BAD_VALUE; |
| break; |
| } |
| |
| if (removedPatch.isSoftware()) { |
| removedPatch.clearConnections(this); |
| break; |
| } |
| |
| if (patch.sinks[0].type == AUDIO_PORT_TYPE_MIX) { |
| audio_io_handle_t ioHandle = patch.sinks[0].ext.mix.handle; |
| sp<ThreadBase> thread = mAudioFlinger.checkRecordThread_l(ioHandle); |
| if (thread == 0) { |
| thread = mAudioFlinger.checkMmapThread_l(ioHandle); |
| if (thread == 0) { |
| ALOGW("%s() bad capture I/O handle %d", __func__, ioHandle); |
| status = BAD_VALUE; |
| break; |
| } |
| } |
| status = thread->sendReleaseAudioPatchConfigEvent(removedPatch.mHalHandle); |
| } else { |
| status = hwDevice->releaseAudioPatch(removedPatch.mHalHandle); |
| } |
| } break; |
| case AUDIO_PORT_TYPE_MIX: { |
| if (findHwDeviceByModule(src.ext.mix.hw_module) == 0) { |
| ALOGW("%s() bad src hw module %d", __func__, src.ext.mix.hw_module); |
| status = BAD_VALUE; |
| break; |
| } |
| audio_io_handle_t ioHandle = src.ext.mix.handle; |
| sp<ThreadBase> thread = mAudioFlinger.checkPlaybackThread_l(ioHandle); |
| if (thread == 0) { |
| thread = mAudioFlinger.checkMmapThread_l(ioHandle); |
| if (thread == 0) { |
| ALOGW("%s() bad playback I/O handle %d", __func__, ioHandle); |
| status = BAD_VALUE; |
| break; |
| } |
| } |
| status = thread->sendReleaseAudioPatchConfigEvent(removedPatch.mHalHandle); |
| } break; |
| default: |
| status = BAD_VALUE; |
| } |
| |
| mPatches.erase(iter); |
| removeSoftwarePatchFromInsertedModules(handle); |
| return status; |
| } |
| |
| /* List connected audio ports and they attributes */ |
| status_t AudioFlinger::PatchPanel::listAudioPatches(unsigned int *num_patches __unused, |
| struct audio_patch *patches __unused) |
| { |
| ALOGV(__func__); |
| return NO_ERROR; |
| } |
| |
| status_t AudioFlinger::PatchPanel::getDownstreamSoftwarePatches( |
| audio_io_handle_t stream, |
| std::vector<AudioFlinger::PatchPanel::SoftwarePatch> *patches) const |
| { |
| for (const auto& module : mInsertedModules) { |
| if (module.second.streams.count(stream)) { |
| for (const auto& patchHandle : module.second.sw_patches) { |
| const auto& patch_iter = mPatches.find(patchHandle); |
| if (patch_iter != mPatches.end()) { |
| const Patch &patch = patch_iter->second; |
| patches->emplace_back(*this, patchHandle, |
| patch.mPlayback.const_thread()->id(), |
| patch.mRecord.const_thread()->id()); |
| } else { |
| ALOGE("Stale patch handle in the cache: %d", patchHandle); |
| } |
| } |
| return OK; |
| } |
| } |
| // The stream is not associated with any of inserted modules. |
| return BAD_VALUE; |
| } |
| |
| void AudioFlinger::PatchPanel::notifyStreamOpened( |
| AudioHwDevice *audioHwDevice, audio_io_handle_t stream) |
| { |
| if (audioHwDevice->isInsert()) { |
| mInsertedModules[audioHwDevice->handle()].streams.insert(stream); |
| } |
| } |
| |
| void AudioFlinger::PatchPanel::notifyStreamClosed(audio_io_handle_t stream) |
| { |
| for (auto& module : mInsertedModules) { |
| module.second.streams.erase(stream); |
| } |
| } |
| |
| AudioHwDevice* AudioFlinger::PatchPanel::findAudioHwDeviceByModule(audio_module_handle_t module) |
| { |
| if (module == AUDIO_MODULE_HANDLE_NONE) return nullptr; |
| ssize_t index = mAudioFlinger.mAudioHwDevs.indexOfKey(module); |
| if (index < 0) { |
| ALOGW("%s() bad hw module %d", __func__, module); |
| return nullptr; |
| } |
| return mAudioFlinger.mAudioHwDevs.valueAt(index); |
| } |
| |
| sp<DeviceHalInterface> AudioFlinger::PatchPanel::findHwDeviceByModule(audio_module_handle_t module) |
| { |
| AudioHwDevice *audioHwDevice = findAudioHwDeviceByModule(module); |
| return audioHwDevice ? audioHwDevice->hwDevice() : nullptr; |
| } |
| |
| void AudioFlinger::PatchPanel::addSoftwarePatchToInsertedModules( |
| audio_module_handle_t module, audio_patch_handle_t handle) |
| { |
| mInsertedModules[module].sw_patches.insert(handle); |
| } |
| |
| void AudioFlinger::PatchPanel::removeSoftwarePatchFromInsertedModules( |
| audio_patch_handle_t handle) |
| { |
| for (auto& module : mInsertedModules) { |
| module.second.sw_patches.erase(handle); |
| } |
| } |
| |
| void AudioFlinger::PatchPanel::dump(int fd) const |
| { |
| String8 patchPanelDump; |
| const char *indent = " "; |
| |
| // Only dump software patches. |
| bool headerPrinted = false; |
| for (const auto& iter : mPatches) { |
| if (iter.second.isSoftware()) { |
| if (!headerPrinted) { |
| patchPanelDump += "\nSoftware patches:\n"; |
| headerPrinted = true; |
| } |
| patchPanelDump.appendFormat("%s%s\n", indent, iter.second.dump(iter.first).string()); |
| } |
| } |
| |
| headerPrinted = false; |
| for (const auto& module : mInsertedModules) { |
| if (!module.second.streams.empty() || !module.second.sw_patches.empty()) { |
| if (!headerPrinted) { |
| patchPanelDump += "\nTracked inserted modules:\n"; |
| headerPrinted = true; |
| } |
| String8 moduleDump = String8::format("Module %d: I/O handles: ", module.first); |
| for (const auto& stream : module.second.streams) { |
| moduleDump.appendFormat("%d ", stream); |
| } |
| moduleDump.append("; SW Patches: "); |
| for (const auto& patch : module.second.sw_patches) { |
| moduleDump.appendFormat("%d ", patch); |
| } |
| patchPanelDump.appendFormat("%s%s\n", indent, moduleDump.string()); |
| } |
| } |
| |
| if (!patchPanelDump.isEmpty()) { |
| write(fd, patchPanelDump.string(), patchPanelDump.size()); |
| } |
| } |
| |
| } // namespace android |
