1f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov/* 2f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov * Copyright (C) 2016 The Android Open Source Project 3f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov * 4f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov * Licensed under the Apache License, Version 2.0 (the "License"); 5f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov * you may not use this file except in compliance with the License. 6f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov * You may obtain a copy of the License at 7f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov * 8f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov * http://www.apache.org/licenses/LICENSE-2.0 9f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov * 10f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov * Unless required by applicable law or agreed to in writing, software 11f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov * distributed under the License is distributed on an "AS IS" BASIS, 12f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov * See the License for the specific language governing permissions and 14f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov * limitations under the License. 15f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov */ 16f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 17f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov#ifndef ANDROID_HARDWARE_STREAM_HAL_HIDL_H 18f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov#define ANDROID_HARDWARE_STREAM_HAL_HIDL_H 19f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 20c8381909c97dd939706d8b1b9069dcfb4e2bf52fMikhail Naganov#include <atomic> 21c8381909c97dd939706d8b1b9069dcfb4e2bf52fMikhail Naganov 22f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov#include <android/hardware/audio/2.0/IStream.h> 23f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov#include <android/hardware/audio/2.0/IStreamIn.h> 24f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov#include <android/hardware/audio/2.0/IStreamOut.h> 25e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov#include <fmq/EventFlag.h> 26e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov#include <fmq/MessageQueue.h> 27f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov#include <media/audiohal/StreamHalInterface.h> 28f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 29f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov#include "ConversionHelperHidl.h" 30f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 31f558e0218d2677a813c9c600886f673894eec927Mikhail Naganovusing ::android::hardware::audio::V2_0::IStream; 32f558e0218d2677a813c9c600886f673894eec927Mikhail Naganovusing ::android::hardware::audio::V2_0::IStreamIn; 33f558e0218d2677a813c9c600886f673894eec927Mikhail Naganovusing ::android::hardware::audio::V2_0::IStreamOut; 34e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganovusing ::android::hardware::EventFlag; 35e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganovusing ::android::hardware::MessageQueue; 36f558e0218d2677a813c9c600886f673894eec927Mikhail Naganovusing ::android::hardware::Return; 37c8381909c97dd939706d8b1b9069dcfb4e2bf52fMikhail Naganovusing ReadParameters = ::android::hardware::audio::V2_0::IStreamIn::ReadParameters; 38e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganovusing ReadStatus = ::android::hardware::audio::V2_0::IStreamIn::ReadStatus; 39c8381909c97dd939706d8b1b9069dcfb4e2bf52fMikhail Naganovusing WriteCommand = ::android::hardware::audio::V2_0::IStreamOut::WriteCommand; 40e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganovusing WriteStatus = ::android::hardware::audio::V2_0::IStreamOut::WriteStatus; 41f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 42f558e0218d2677a813c9c600886f673894eec927Mikhail Naganovnamespace android { 43f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 44f558e0218d2677a813c9c600886f673894eec927Mikhail Naganovclass DeviceHalHidl; 45f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 46f558e0218d2677a813c9c600886f673894eec927Mikhail Naganovclass StreamHalHidl : public virtual StreamHalInterface, public ConversionHelperHidl 47f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov{ 48f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov public: 49f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Return the sampling rate in Hz - eg. 44100. 50f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t getSampleRate(uint32_t *rate); 51f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 52f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Return size of input/output buffer in bytes for this stream - eg. 4800. 53f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t getBufferSize(size_t *size); 54f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 55f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Return the channel mask. 56f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t getChannelMask(audio_channel_mask_t *mask); 57f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 58f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Return the audio format - e.g. AUDIO_FORMAT_PCM_16_BIT. 59f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t getFormat(audio_format_t *format); 60f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 61f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Convenience method. 62f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t getAudioProperties( 63f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov uint32_t *sampleRate, audio_channel_mask_t *mask, audio_format_t *format); 64f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 65f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Set audio stream parameters. 66f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t setParameters(const String8& kvPairs); 67f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 68f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Get audio stream parameters. 69f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t getParameters(const String8& keys, String8 *values); 70f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 71f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Add or remove the effect on the stream. 72f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t addEffect(sp<EffectHalInterface> effect); 73f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t removeEffect(sp<EffectHalInterface> effect); 74f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 75f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Put the audio hardware input/output into standby mode. 76f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t standby(); 77f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 78f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t dump(int fd); 79f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 80af35aadb7ab558035b6cf45bd3930ecaa3a3b330Eric Laurent // Start a stream operating in mmap mode. 81af35aadb7ab558035b6cf45bd3930ecaa3a3b330Eric Laurent virtual status_t start(); 82af35aadb7ab558035b6cf45bd3930ecaa3a3b330Eric Laurent 83af35aadb7ab558035b6cf45bd3930ecaa3a3b330Eric Laurent // Stop a stream operating in mmap mode. 84af35aadb7ab558035b6cf45bd3930ecaa3a3b330Eric Laurent virtual status_t stop(); 85af35aadb7ab558035b6cf45bd3930ecaa3a3b330Eric Laurent 86af35aadb7ab558035b6cf45bd3930ecaa3a3b330Eric Laurent // Retrieve information on the data buffer in mmap mode. 87af35aadb7ab558035b6cf45bd3930ecaa3a3b330Eric Laurent virtual status_t createMmapBuffer(int32_t minSizeFrames, 88af35aadb7ab558035b6cf45bd3930ecaa3a3b330Eric Laurent struct audio_mmap_buffer_info *info); 89af35aadb7ab558035b6cf45bd3930ecaa3a3b330Eric Laurent 90af35aadb7ab558035b6cf45bd3930ecaa3a3b330Eric Laurent // Get current read/write position in the mmap buffer 91af35aadb7ab558035b6cf45bd3930ecaa3a3b330Eric Laurent virtual status_t getMmapPosition(struct audio_mmap_position *position); 92af35aadb7ab558035b6cf45bd3930ecaa3a3b330Eric Laurent 93e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov // Set the priority of the thread that interacts with the HAL 94e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov // (must match the priority of the audioflinger's thread that calls 'read' / 'write') 95e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov virtual status_t setHalThreadPriority(int priority); 96e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov 97f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov protected: 98f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Subclasses can not be constructed directly by clients. 99f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov explicit StreamHalHidl(IStream *stream); 100f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 101f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // The destructor automatically closes the stream. 102f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual ~StreamHalHidl(); 103f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 10483f042776b131b149f803fff6ab184ae2c4d98cdMikhail Naganov bool requestHalThreadPriority(pid_t threadPid, pid_t threadId); 105e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov 106f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov private: 10783f042776b131b149f803fff6ab184ae2c4d98cdMikhail Naganov const int HAL_THREAD_PRIORITY_DEFAULT = -1; 108f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov IStream *mStream; 10983f042776b131b149f803fff6ab184ae2c4d98cdMikhail Naganov int mHalThreadPriority; 110f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov}; 111f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 112f558e0218d2677a813c9c600886f673894eec927Mikhail Naganovclass StreamOutHalHidl : public StreamOutHalInterface, public StreamHalHidl { 113f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov public: 114f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Return the frame size (number of bytes per sample) of a stream. 115f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t getFrameSize(size_t *size); 116f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 117f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Return the audio hardware driver estimated latency in milliseconds. 118f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t getLatency(uint32_t *latency); 119f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 120f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Use this method in situations where audio mixing is done in the hardware. 121f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t setVolume(float left, float right); 122f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 123f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Write audio buffer to driver. 124f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t write(const void *buffer, size_t bytes, size_t *written); 125f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 126f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Return the number of audio frames written by the audio dsp to DAC since 127f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // the output has exited standby. 128f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t getRenderPosition(uint32_t *dspFrames); 129f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 130f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Get the local time at which the next write to the audio driver will be presented. 131f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t getNextWriteTimestamp(int64_t *timestamp); 132f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 133f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Set the callback for notifying completion of non-blocking write and drain. 134f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t setCallback(wp<StreamOutHalInterfaceCallback> callback); 135f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 136f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Returns whether pause and resume operations are supported. 137f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t supportsPauseAndResume(bool *supportsPause, bool *supportsResume); 138f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 139f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Notifies to the audio driver to resume playback following a pause. 140f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t pause(); 141f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 142f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Notifies to the audio driver to resume playback following a pause. 143f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t resume(); 144f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 145f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Returns whether drain operation is supported. 146f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t supportsDrain(bool *supportsDrain); 147f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 148f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Requests notification when data buffered by the driver/hardware has been played. 149f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t drain(bool earlyNotify); 150f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 151f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Notifies to the audio driver to flush the queued data. 152f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t flush(); 153f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 154f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Return a recent count of the number of audio frames presented to an external observer. 155f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t getPresentationPosition(uint64_t *frames, struct timespec *timestamp); 156f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 157f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Methods used by StreamOutCallback (HIDL). 158f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov void onWriteReady(); 159f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov void onDrainReady(); 160f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov void onError(); 161f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 162f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov private: 163f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov friend class DeviceHalHidl; 164c8381909c97dd939706d8b1b9069dcfb4e2bf52fMikhail Naganov typedef MessageQueue<WriteCommand, hardware::kSynchronizedReadWrite> CommandMQ; 165e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov typedef MessageQueue<uint8_t, hardware::kSynchronizedReadWrite> DataMQ; 166e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov typedef MessageQueue<WriteStatus, hardware::kSynchronizedReadWrite> StatusMQ; 167f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 168f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov wp<StreamOutHalInterfaceCallback> mCallback; 169f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov sp<IStreamOut> mStream; 170c8381909c97dd939706d8b1b9069dcfb4e2bf52fMikhail Naganov std::unique_ptr<CommandMQ> mCommandMQ; 171e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov std::unique_ptr<DataMQ> mDataMQ; 172e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov std::unique_ptr<StatusMQ> mStatusMQ; 173c8381909c97dd939706d8b1b9069dcfb4e2bf52fMikhail Naganov std::atomic<pid_t> mWriterClient; 174e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov EventFlag* mEfGroup; 175f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 176f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Can not be constructed directly by clients. 177f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov StreamOutHalHidl(const sp<IStreamOut>& stream); 178f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 179f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual ~StreamOutHalHidl(); 180e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov 181c8381909c97dd939706d8b1b9069dcfb4e2bf52fMikhail Naganov using WriterCallback = std::function<void(const WriteStatus& writeStatus)>; 182c8381909c97dd939706d8b1b9069dcfb4e2bf52fMikhail Naganov status_t callWriterThread( 183c8381909c97dd939706d8b1b9069dcfb4e2bf52fMikhail Naganov WriteCommand cmd, const char* cmdName, 184c8381909c97dd939706d8b1b9069dcfb4e2bf52fMikhail Naganov const uint8_t* data, size_t dataSize, WriterCallback callback); 185e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov status_t prepareForWriting(size_t bufferSize); 186f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov}; 187f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 188f558e0218d2677a813c9c600886f673894eec927Mikhail Naganovclass StreamInHalHidl : public StreamInHalInterface, public StreamHalHidl { 189f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov public: 190f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Return the frame size (number of bytes per sample) of a stream. 191f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t getFrameSize(size_t *size); 192f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 193f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Set the input gain for the audio driver. 194f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t setGain(float gain); 195f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 196f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Read audio buffer in from driver. 197f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t read(void *buffer, size_t bytes, size_t *read); 198f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 199f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Return the amount of input frames lost in the audio driver. 200f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t getInputFramesLost(uint32_t *framesLost); 201f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 202f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Return a recent count of the number of audio frames received and 203f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // the clock time associated with that frame count. 204f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual status_t getCapturePosition(int64_t *frames, int64_t *time); 205f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 206f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov private: 207f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov friend class DeviceHalHidl; 208c8381909c97dd939706d8b1b9069dcfb4e2bf52fMikhail Naganov typedef MessageQueue<ReadParameters, hardware::kSynchronizedReadWrite> CommandMQ; 209e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov typedef MessageQueue<uint8_t, hardware::kSynchronizedReadWrite> DataMQ; 210e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov typedef MessageQueue<ReadStatus, hardware::kSynchronizedReadWrite> StatusMQ; 211f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 212f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov sp<IStreamIn> mStream; 213c8381909c97dd939706d8b1b9069dcfb4e2bf52fMikhail Naganov std::unique_ptr<CommandMQ> mCommandMQ; 214e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov std::unique_ptr<DataMQ> mDataMQ; 215e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov std::unique_ptr<StatusMQ> mStatusMQ; 216c8381909c97dd939706d8b1b9069dcfb4e2bf52fMikhail Naganov std::atomic<pid_t> mReaderClient; 217e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov EventFlag* mEfGroup; 218f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 219f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov // Can not be constructed directly by clients. 220f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov StreamInHalHidl(const sp<IStreamIn>& stream); 221f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 222f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov virtual ~StreamInHalHidl(); 223e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov 224c8381909c97dd939706d8b1b9069dcfb4e2bf52fMikhail Naganov using ReaderCallback = std::function<void(const ReadStatus& readStatus)>; 225c8381909c97dd939706d8b1b9069dcfb4e2bf52fMikhail Naganov status_t callReaderThread( 226c8381909c97dd939706d8b1b9069dcfb4e2bf52fMikhail Naganov const ReadParameters& params, const char* cmdName, ReaderCallback callback); 227e1c4b5d7a94c21b8ce0c5707b4af84de596fbb79Mikhail Naganov status_t prepareForReading(size_t bufferSize); 228f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov}; 229f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 230f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov} // namespace android 231f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov 232f558e0218d2677a813c9c600886f673894eec927Mikhail Naganov#endif // ANDROID_HARDWARE_STREAM_HAL_HIDL_H 233