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device_phh_treble/audio/hal/StreamIn.cpp
Peter Cai 4f1e4824dc gsi: sysbta: Separate audio interfaces from bluetooth 
This will allow us to dynamically load multiple different versions of
audio interface implementation into the same sysbta hal process. Note
that since we are using a weird suffix here, the default
`registerPassthroughServiceImplementation` will not work, and we will
have to define our own dynamic symbol for it.
2022-10-04 16:27:57 -04:00

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/*
* Copyright (C) 2018 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 "StreamInHAL"
#include "StreamIn.h"
#include "Util.h"
#include "common/all-versions/HidlSupport.h"
//#define LOG_NDEBUG 0
#define ATRACE_TAG ATRACE_TAG_AUDIO
#include <HidlUtils.h>
#include <android/log.h>
#include <hardware/audio.h>
#include <util/CoreUtils.h>
#include <utils/Trace.h>
#include <cmath>
#include <memory>
namespace android {
namespace hardware {
namespace audio {
namespace CPP_VERSION {
namespace implementation {
using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::HidlUtils;
using ::android::hardware::audio::CORE_TYPES_CPP_VERSION::implementation::CoreUtils;
namespace util {
using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION::implementation::util;
}
namespace {
class ReadThread : public Thread {
public:
// ReadThread's lifespan never exceeds StreamIn's lifespan.
ReadThread(std::atomic<bool>* stop, audio_stream_in_t* stream, StreamIn::CommandMQ* commandMQ,
StreamIn::DataMQ* dataMQ, StreamIn::StatusMQ* statusMQ, EventFlag* efGroup)
: Thread(false /*canCallJava*/),
mStop(stop),
mStream(stream),
mCommandMQ(commandMQ),
mDataMQ(dataMQ),
mStatusMQ(statusMQ),
mEfGroup(efGroup),
mBuffer(nullptr) {}
bool init() {
mBuffer.reset(new (std::nothrow) uint8_t[mDataMQ->getQuantumCount()]);
return mBuffer != nullptr;
}
virtual ~ReadThread() {}
private:
std::atomic<bool>* mStop;
audio_stream_in_t* mStream;
StreamIn::CommandMQ* mCommandMQ;
StreamIn::DataMQ* mDataMQ;
StreamIn::StatusMQ* mStatusMQ;
EventFlag* mEfGroup;
std::unique_ptr<uint8_t[]> mBuffer;
IStreamIn::ReadParameters mParameters;
IStreamIn::ReadStatus mStatus;
bool threadLoop() override;
void doGetCapturePosition();
void doRead();
};
void ReadThread::doRead() {
size_t availableToWrite = mDataMQ->availableToWrite();
size_t requestedToRead = mParameters.params.read;
if (requestedToRead > availableToWrite) {
ALOGW(
"truncating read data from %d to %d due to insufficient data queue "
"space",
(int32_t)requestedToRead, (int32_t)availableToWrite);
requestedToRead = availableToWrite;
}
ssize_t readResult = mStream->read(mStream, &mBuffer[0], requestedToRead);
mStatus.retval = Result::OK;
if (readResult >= 0) {
mStatus.reply.read = readResult;
if (!mDataMQ->write(&mBuffer[0], readResult)) {
ALOGW("data message queue write failed");
}
} else {
mStatus.retval = Stream::analyzeStatus("read", readResult);
}
}
void ReadThread::doGetCapturePosition() {
mStatus.retval = StreamIn::getCapturePositionImpl(
mStream, &mStatus.reply.capturePosition.frames, &mStatus.reply.capturePosition.time);
}
bool ReadThread::threadLoop() {
// This implementation doesn't return control back to the Thread until it
// decides to stop,
// as the Thread uses mutexes, and this can lead to priority inversion.
while (!std::atomic_load_explicit(mStop, std::memory_order_acquire)) {
uint32_t efState = 0;
mEfGroup->wait(static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL), &efState);
if (!(efState & static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL))) {
continue; // Nothing to do.
}
if (!mCommandMQ->read(&mParameters)) {
continue; // Nothing to do.
}
mStatus.replyTo = mParameters.command;
switch (mParameters.command) {
case IStreamIn::ReadCommand::READ:
doRead();
break;
case IStreamIn::ReadCommand::GET_CAPTURE_POSITION:
doGetCapturePosition();
break;
default:
ALOGE("Unknown read thread command code %d", mParameters.command);
mStatus.retval = Result::NOT_SUPPORTED;
break;
}
if (!mStatusMQ->write(&mStatus)) {
ALOGW("status message queue write failed");
}
mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY));
}
return false;
}
} // namespace
StreamIn::StreamIn(const sp<Device>& device, audio_stream_in_t* stream)
: mDevice(device),
mStream(stream),
mStreamCommon(new Stream(true /*isInput*/, &stream->common)),
mStreamMmap(new StreamMmap<audio_stream_in_t>(stream)),
mEfGroup(nullptr),
mStopReadThread(false) {}
StreamIn::~StreamIn() {
ATRACE_CALL();
close();
if (mReadThread.get()) {
ATRACE_NAME("mReadThread->join");
status_t status = mReadThread->join();
ALOGE_IF(status, "read thread exit error: %s", strerror(-status));
}
if (mEfGroup) {
status_t status = EventFlag::deleteEventFlag(&mEfGroup);
ALOGE_IF(status, "read MQ event flag deletion error: %s", strerror(-status));
}
#if MAJOR_VERSION <= 5
mDevice->closeInputStream(mStream);
#endif
mStream = nullptr;
}
// Methods from ::android::hardware::audio::CPP_VERSION::IStream follow.
Return<uint64_t> StreamIn::getFrameSize() {
return audio_stream_in_frame_size(mStream);
}
Return<uint64_t> StreamIn::getFrameCount() {
return mStreamCommon->getFrameCount();
}
Return<uint64_t> StreamIn::getBufferSize() {
return mStreamCommon->getBufferSize();
}
#if MAJOR_VERSION <= 6
Return<uint32_t> StreamIn::getSampleRate() {
return mStreamCommon->getSampleRate();
}
#if MAJOR_VERSION == 2
Return<void> StreamIn::getSupportedChannelMasks(getSupportedChannelMasks_cb _hidl_cb) {
return mStreamCommon->getSupportedChannelMasks(_hidl_cb);
}
Return<void> StreamIn::getSupportedSampleRates(getSupportedSampleRates_cb _hidl_cb) {
return mStreamCommon->getSupportedSampleRates(_hidl_cb);
}
#endif
Return<void> StreamIn::getSupportedChannelMasks(AudioFormat format,
getSupportedChannelMasks_cb _hidl_cb) {
return mStreamCommon->getSupportedChannelMasks(format, _hidl_cb);
}
Return<void> StreamIn::getSupportedSampleRates(AudioFormat format,
getSupportedSampleRates_cb _hidl_cb) {
return mStreamCommon->getSupportedSampleRates(format, _hidl_cb);
}
Return<Result> StreamIn::setSampleRate(uint32_t sampleRateHz) {
return mStreamCommon->setSampleRate(sampleRateHz);
}
Return<AudioChannelBitfield> StreamIn::getChannelMask() {
return mStreamCommon->getChannelMask();
}
Return<Result> StreamIn::setChannelMask(AudioChannelBitfield mask) {
return mStreamCommon->setChannelMask(mask);
}
Return<AudioFormat> StreamIn::getFormat() {
return mStreamCommon->getFormat();
}
Return<void> StreamIn::getSupportedFormats(getSupportedFormats_cb _hidl_cb) {
return mStreamCommon->getSupportedFormats(_hidl_cb);
}
Return<Result> StreamIn::setFormat(AudioFormat format) {
return mStreamCommon->setFormat(format);
}
#else
Return<void> StreamIn::getSupportedProfiles(getSupportedProfiles_cb _hidl_cb) {
return mStreamCommon->getSupportedProfiles(_hidl_cb);
}
Return<Result> StreamIn::setAudioProperties(const AudioConfigBaseOptional& config) {
return mStreamCommon->setAudioProperties(config);
}
#endif // MAJOR_VERSION <= 6
Return<void> StreamIn::getAudioProperties(getAudioProperties_cb _hidl_cb) {
return mStreamCommon->getAudioProperties(_hidl_cb);
}
Return<Result> StreamIn::addEffect(uint64_t effectId) {
return mStreamCommon->addEffect(effectId);
}
Return<Result> StreamIn::removeEffect(uint64_t effectId) {
return mStreamCommon->removeEffect(effectId);
}
Return<Result> StreamIn::standby() {
return mStreamCommon->standby();
}
Return<Result> StreamIn::setHwAvSync(uint32_t hwAvSync) {
return mStreamCommon->setHwAvSync(hwAvSync);
}
#if MAJOR_VERSION == 2
Return<Result> StreamIn::setConnectedState(const DeviceAddress& address, bool connected) {
return mStreamCommon->setConnectedState(address, connected);
}
Return<AudioDevice> StreamIn::getDevice() {
return mStreamCommon->getDevice();
}
Return<Result> StreamIn::setDevice(const DeviceAddress& address) {
return mStreamCommon->setDevice(address);
}
Return<void> StreamIn::getParameters(const hidl_vec<hidl_string>& keys, getParameters_cb _hidl_cb) {
return mStreamCommon->getParameters(keys, _hidl_cb);
}
Return<Result> StreamIn::setParameters(const hidl_vec<ParameterValue>& parameters) {
return mStreamCommon->setParameters(parameters);
}
Return<void> StreamIn::debugDump(const hidl_handle& fd) {
return mStreamCommon->debugDump(fd);
}
#elif MAJOR_VERSION >= 4
Return<void> StreamIn::getDevices(getDevices_cb _hidl_cb) {
return mStreamCommon->getDevices(_hidl_cb);
}
Return<Result> StreamIn::setDevices(const hidl_vec<DeviceAddress>& devices) {
return mStreamCommon->setDevices(devices);
}
Return<void> StreamIn::getParameters(const hidl_vec<ParameterValue>& context,
const hidl_vec<hidl_string>& keys, getParameters_cb _hidl_cb) {
return mStreamCommon->getParameters(context, keys, _hidl_cb);
}
Return<Result> StreamIn::setParameters(const hidl_vec<ParameterValue>& context,
const hidl_vec<ParameterValue>& parameters) {
return mStreamCommon->setParameters(context, parameters);
}
#endif
Return<Result> StreamIn::start() {
return mStreamMmap->start();
}
Return<Result> StreamIn::stop() {
return mStreamMmap->stop();
}
Return<void> StreamIn::createMmapBuffer(int32_t minSizeFrames, createMmapBuffer_cb _hidl_cb) {
return mStreamMmap->createMmapBuffer(minSizeFrames, audio_stream_in_frame_size(mStream),
_hidl_cb);
}
Return<void> StreamIn::getMmapPosition(getMmapPosition_cb _hidl_cb) {
return mStreamMmap->getMmapPosition(_hidl_cb);
}
Return<Result> StreamIn::close() {
if (mStopReadThread.load(std::memory_order_relaxed)) { // only this thread writes
return Result::INVALID_STATE;
}
mStopReadThread.store(true, std::memory_order_release);
if (mEfGroup) {
mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL));
}
#if MAJOR_VERSION >= 6
mDevice->closeInputStream(mStream);
#endif
return Result::OK;
}
// Methods from ::android::hardware::audio::CPP_VERSION::IStreamIn follow.
Return<void> StreamIn::getAudioSource(getAudioSource_cb _hidl_cb) {
int halSource;
Result retval = mStreamCommon->getParam(AudioParameter::keyInputSource, &halSource);
AudioSource source = {};
if (retval == Result::OK) {
retval = Stream::analyzeStatus(
"get_audio_source",
HidlUtils::audioSourceFromHal(static_cast<audio_source_t>(halSource), &source));
}
_hidl_cb(retval, source);
return Void();
}
Return<Result> StreamIn::setGain(float gain) {
if (!util::isGainNormalized(gain)) {
ALOGW("Can not set a stream input gain (%f) outside [0,1]", gain);
return Result::INVALID_ARGUMENTS;
}
return Stream::analyzeStatus("set_gain", mStream->set_gain(mStream, gain));
}
Return<void> StreamIn::prepareForReading(uint32_t frameSize, uint32_t framesCount,
prepareForReading_cb _hidl_cb) {
status_t status;
#if MAJOR_VERSION <= 6
ThreadInfo threadInfo = {0, 0};
#else
int32_t threadInfo = 0;
#endif
// Wrap the _hidl_cb to return an error
auto sendError = [&threadInfo, &_hidl_cb](Result result) {
_hidl_cb(result, CommandMQ::Descriptor(), DataMQ::Descriptor(), StatusMQ::Descriptor(),
threadInfo);
};
// Create message queues.
if (mDataMQ) {
ALOGE("the client attempts to call prepareForReading twice");
sendError(Result::INVALID_STATE);
return Void();
}
std::unique_ptr<CommandMQ> tempCommandMQ(new CommandMQ(1));
// Check frameSize and framesCount
if (frameSize == 0 || framesCount == 0) {
ALOGE("Null frameSize (%u) or framesCount (%u)", frameSize, framesCount);
sendError(Result::INVALID_ARGUMENTS);
return Void();
}
if (frameSize > Stream::MAX_BUFFER_SIZE / framesCount) {
ALOGE("Buffer too big: %u*%u bytes > MAX_BUFFER_SIZE (%u)", frameSize, framesCount,
Stream::MAX_BUFFER_SIZE);
sendError(Result::INVALID_ARGUMENTS);
return Void();
}
std::unique_ptr<DataMQ> tempDataMQ(new DataMQ(frameSize * framesCount, true /* EventFlag */));
std::unique_ptr<StatusMQ> tempStatusMQ(new StatusMQ(1));
if (!tempCommandMQ->isValid() || !tempDataMQ->isValid() || !tempStatusMQ->isValid()) {
ALOGE_IF(!tempCommandMQ->isValid(), "command MQ is invalid");
ALOGE_IF(!tempDataMQ->isValid(), "data MQ is invalid");
ALOGE_IF(!tempStatusMQ->isValid(), "status MQ is invalid");
sendError(Result::INVALID_ARGUMENTS);
return Void();
}
EventFlag* tempRawEfGroup{};
status = EventFlag::createEventFlag(tempDataMQ->getEventFlagWord(), &tempRawEfGroup);
std::unique_ptr<EventFlag, void (*)(EventFlag*)> tempElfGroup(
tempRawEfGroup, [](auto* ef) { EventFlag::deleteEventFlag(&ef); });
if (status != OK || !tempElfGroup) {
ALOGE("failed creating event flag for data MQ: %s", strerror(-status));
sendError(Result::INVALID_ARGUMENTS);
return Void();
}
// Create and launch the thread.
auto tempReadThread =
sp<ReadThread>::make(&mStopReadThread, mStream, tempCommandMQ.get(), tempDataMQ.get(),
tempStatusMQ.get(), tempElfGroup.get());
if (!tempReadThread->init()) {
ALOGW("failed to start reader thread: %s", strerror(-status));
sendError(Result::INVALID_ARGUMENTS);
return Void();
}
status = tempReadThread->run("reader", PRIORITY_URGENT_AUDIO);
if (status != OK) {
ALOGW("failed to start reader thread: %s", strerror(-status));
sendError(Result::INVALID_ARGUMENTS);
return Void();
}
mCommandMQ = std::move(tempCommandMQ);
mDataMQ = std::move(tempDataMQ);
mStatusMQ = std::move(tempStatusMQ);
mReadThread = tempReadThread;
mEfGroup = tempElfGroup.release();
#if MAJOR_VERSION <= 6
threadInfo.pid = getpid();
threadInfo.tid = mReadThread->getTid();
#else
threadInfo = mReadThread->getTid();
#endif
_hidl_cb(Result::OK, *mCommandMQ->getDesc(), *mDataMQ->getDesc(), *mStatusMQ->getDesc(),
threadInfo);
return Void();
}
Return<uint32_t> StreamIn::getInputFramesLost() {
return mStream->get_input_frames_lost(mStream);
}
// static
Result StreamIn::getCapturePositionImpl(audio_stream_in_t* stream, uint64_t* frames,
uint64_t* time) {
// HAL may have a stub function, always returning ENOSYS, don't
// spam the log in this case.
static const std::vector<int> ignoredErrors{ENOSYS};
Result retval(Result::NOT_SUPPORTED);
if (stream->get_capture_position == NULL) return retval;
int64_t halFrames, halTime;
retval = Stream::analyzeStatus("get_capture_position",
stream->get_capture_position(stream, &halFrames, &halTime),
ignoredErrors);
if (retval == Result::OK) {
*frames = halFrames;
*time = halTime;
}
return retval;
};
Return<void> StreamIn::getCapturePosition(getCapturePosition_cb _hidl_cb) {
uint64_t frames = 0, time = 0;
Result retval = getCapturePositionImpl(mStream, &frames, &time);
_hidl_cb(retval, frames, time);
return Void();
}
Return<void> StreamIn::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) {
return mStreamCommon->debug(fd, options);
}
#if MAJOR_VERSION >= 4
Result StreamIn::doUpdateSinkMetadata(const SinkMetadata& sinkMetadata) {
std::vector<record_track_metadata> halTracks;
#if MAJOR_VERSION <= 6
(void)CoreUtils::sinkMetadataToHal(sinkMetadata, &halTracks);
#else
// Validate whether a conversion to V7 is possible. This is needed
// to have a consistent behavior of the HAL regardless of the API
// version of the legacy HAL (and also to be consistent with openInputStream).
std::vector<record_track_metadata_v7> halTracksV7;
if (status_t status = CoreUtils::sinkMetadataToHalV7(
sinkMetadata, false /*ignoreNonVendorTags*/, &halTracksV7);
status == NO_ERROR) {
halTracks.reserve(halTracksV7.size());
for (auto metadata_v7 : halTracksV7) {
halTracks.push_back(std::move(metadata_v7.base));
}
} else {
return Stream::analyzeStatus("sinkMetadataToHal", status);
}
#endif // MAJOR_VERSION <= 6
const sink_metadata_t halMetadata = {
.track_count = halTracks.size(),
.tracks = halTracks.data(),
};
mStream->update_sink_metadata(mStream, &halMetadata);
return Result::OK;
}
#if MAJOR_VERSION >= 7
Result StreamIn::doUpdateSinkMetadataV7(const SinkMetadata& sinkMetadata) {
std::vector<record_track_metadata_v7> halTracks;
if (status_t status = CoreUtils::sinkMetadataToHalV7(sinkMetadata,
false /*ignoreNonVendorTags*/, &halTracks);
status != NO_ERROR) {
return Stream::analyzeStatus("sinkMetadataToHal", status);
}
const sink_metadata_v7_t halMetadata = {
.track_count = halTracks.size(),
.tracks = halTracks.data(),
};
mStream->update_sink_metadata_v7(mStream, &halMetadata);
return Result::OK;
}
#endif // MAJOR_VERSION >= 7
#if MAJOR_VERSION <= 6
Return<void> StreamIn::updateSinkMetadata(const SinkMetadata& sinkMetadata) {
if (mStream->update_sink_metadata == nullptr) {
return Void(); // not supported by the HAL
}
(void)doUpdateSinkMetadata(sinkMetadata);
return Void();
}
#elif MAJOR_VERSION >= 7
Return<Result> StreamIn::updateSinkMetadata(const SinkMetadata& sinkMetadata) {
if (mDevice->version() < AUDIO_DEVICE_API_VERSION_3_2) {
if (mStream->update_sink_metadata == nullptr) {
return Result::NOT_SUPPORTED;
}
return doUpdateSinkMetadata(sinkMetadata);
} else {
if (mStream->update_sink_metadata_v7 == nullptr) {
return Result::NOT_SUPPORTED;
}
return doUpdateSinkMetadataV7(sinkMetadata);
}
}
#endif
Return<void> StreamIn::getActiveMicrophones(getActiveMicrophones_cb _hidl_cb) {
Result retval = Result::NOT_SUPPORTED;
size_t actual_mics = AUDIO_MICROPHONE_MAX_COUNT;
audio_microphone_characteristic_t mic_array[AUDIO_MICROPHONE_MAX_COUNT];
hidl_vec<MicrophoneInfo> microphones;
if (mStream->get_active_microphones != NULL &&
mStream->get_active_microphones(mStream, &mic_array[0], &actual_mics) == 0) {
microphones.resize(actual_mics);
for (size_t i = 0; i < actual_mics; ++i) {
(void)CoreUtils::microphoneInfoFromHal(mic_array[i], &microphones[i]);
}
retval = Result::OK;
}
_hidl_cb(retval, microphones);
return Void();
}
#endif
#if MAJOR_VERSION >= 5
Return<Result> StreamIn::setMicrophoneDirection(MicrophoneDirection direction) {
if (mStream->set_microphone_direction == nullptr) {
return Result::NOT_SUPPORTED;
}
if (!common::utils::isValidHidlEnum(direction)) {
ALOGE("%s: Invalid direction %d", __func__, direction);
return Result::INVALID_ARGUMENTS;
}
return Stream::analyzeStatus(
"set_microphone_direction",
mStream->set_microphone_direction(
mStream, static_cast<audio_microphone_direction_t>(direction)));
}
Return<Result> StreamIn::setMicrophoneFieldDimension(float zoom) {
if (mStream->set_microphone_field_dimension == nullptr) {
return Result::NOT_SUPPORTED;
}
if (std::isnan(zoom) || zoom < -1 || zoom > 1) {
ALOGE("%s: Invalid zoom %f", __func__, zoom);
return Result::INVALID_ARGUMENTS;
}
return Stream::analyzeStatus("set_microphone_field_dimension",
mStream->set_microphone_field_dimension(mStream, zoom));
}
#endif
} // namespace implementation
} // namespace CPP_VERSION
} // namespace audio
} // namespace hardware
} // namespace android
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