Files
hardware_interfaces/audio/2.0/default/StreamIn.h
Mikhail Naganov a1db22a3e5 audiohal: Pass thread identifiers to the client for priority adjustment
HALs are prohibited from using framework binder, and there is
no equivalent scheduling policy service in hwbinder. Thus, in order
to match priorities of FastCapture / Mixer threads with their
counterparts in the HAL, it is needed to request the priority boost
from audioflinger on behalf of the HAL.

Bug: 34131400
Change-Id: I7c8db9d520b4cf272d2896ad875752b109b57ab7
Test: check priority match between audioflinger's and hal's threads
2017-02-07 10:49:18 -08:00

125 lines
5.0 KiB
C++

/*
* Copyright (C) 2016 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.
*/
#ifndef ANDROID_HARDWARE_AUDIO_V2_0_STREAMIN_H
#define ANDROID_HARDWARE_AUDIO_V2_0_STREAMIN_H
#include <atomic>
#include <memory>
#include <android/hardware/audio/2.0/IStreamIn.h>
#include <hidl/MQDescriptor.h>
#include <fmq/EventFlag.h>
#include <fmq/MessageQueue.h>
#include <hidl/Status.h>
#include <utils/Thread.h>
#include "Stream.h"
namespace android {
namespace hardware {
namespace audio {
namespace V2_0 {
namespace implementation {
using ::android::hardware::audio::common::V2_0::AudioChannelMask;
using ::android::hardware::audio::common::V2_0::AudioDevice;
using ::android::hardware::audio::common::V2_0::AudioFormat;
using ::android::hardware::audio::common::V2_0::AudioSource;
using ::android::hardware::audio::V2_0::DeviceAddress;
using ::android::hardware::audio::V2_0::IStream;
using ::android::hardware::audio::V2_0::IStreamIn;
using ::android::hardware::audio::V2_0::ParameterValue;
using ::android::hardware::audio::V2_0::Result;
using ::android::hardware::Return;
using ::android::hardware::Void;
using ::android::hardware::hidl_vec;
using ::android::hardware::hidl_string;
using ::android::sp;
struct StreamIn : public IStreamIn {
typedef MessageQueue<ReadParameters, kSynchronizedReadWrite> CommandMQ;
typedef MessageQueue<uint8_t, kSynchronizedReadWrite> DataMQ;
typedef MessageQueue<ReadStatus, kSynchronizedReadWrite> StatusMQ;
StreamIn(audio_hw_device_t* device, audio_stream_in_t* stream);
// Methods from ::android::hardware::audio::V2_0::IStream follow.
Return<uint64_t> getFrameSize() override;
Return<uint64_t> getFrameCount() override;
Return<uint64_t> getBufferSize() override;
Return<uint32_t> getSampleRate() override;
Return<void> getSupportedSampleRates(getSupportedSampleRates_cb _hidl_cb) override;
Return<Result> setSampleRate(uint32_t sampleRateHz) override;
Return<AudioChannelMask> getChannelMask() override;
Return<void> getSupportedChannelMasks(getSupportedChannelMasks_cb _hidl_cb) override;
Return<Result> setChannelMask(AudioChannelMask mask) override;
Return<AudioFormat> getFormat() override;
Return<void> getSupportedFormats(getSupportedFormats_cb _hidl_cb) override;
Return<Result> setFormat(AudioFormat format) override;
Return<void> getAudioProperties(getAudioProperties_cb _hidl_cb) override;
Return<Result> addEffect(uint64_t effectId) override;
Return<Result> removeEffect(uint64_t effectId) override;
Return<Result> standby() override;
Return<AudioDevice> getDevice() override;
Return<Result> setDevice(const DeviceAddress& address) override;
Return<Result> setConnectedState(const DeviceAddress& address, bool connected) override;
Return<Result> setHwAvSync(uint32_t hwAvSync) override;
Return<void> getParameters(
const hidl_vec<hidl_string>& keys, getParameters_cb _hidl_cb) override;
Return<Result> setParameters(const hidl_vec<ParameterValue>& parameters) override;
Return<void> debugDump(const hidl_handle& fd) override;
Return<Result> close() override;
// Methods from ::android::hardware::audio::V2_0::IStreamIn follow.
Return<void> getAudioSource(getAudioSource_cb _hidl_cb) override;
Return<Result> setGain(float gain) override;
Return<void> prepareForReading(
uint32_t frameSize, uint32_t framesCount, prepareForReading_cb _hidl_cb) override;
Return<uint32_t> getInputFramesLost() override;
Return<void> getCapturePosition(getCapturePosition_cb _hidl_cb) override;
Return<Result> start() override;
Return<Result> stop() override;
Return<void> createMmapBuffer(int32_t minSizeFrames, createMmapBuffer_cb _hidl_cb) override;
Return<void> getMmapPosition(getMmapPosition_cb _hidl_cb) override;
static Result getCapturePositionImpl(
audio_stream_in_t *stream, uint64_t *frames, uint64_t *time);
private:
bool mIsClosed;
audio_hw_device_t *mDevice;
audio_stream_in_t *mStream;
sp<Stream> mStreamCommon;
sp<StreamMmap<audio_stream_in_t>> mStreamMmap;
std::unique_ptr<CommandMQ> mCommandMQ;
std::unique_ptr<DataMQ> mDataMQ;
std::unique_ptr<StatusMQ> mStatusMQ;
EventFlag* mEfGroup;
std::atomic<bool> mStopReadThread;
sp<Thread> mReadThread;
virtual ~StreamIn();
};
} // namespace implementation
} // namespace V2_0
} // namespace audio
} // namespace hardware
} // namespace android
#endif // ANDROID_HARDWARE_AUDIO_V2_0_STREAMIN_H