1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_HARDWARE_AUDIO_V2_0_STREAMIN_H 18 #define ANDROID_HARDWARE_AUDIO_V2_0_STREAMIN_H 19 20 #include <atomic> 21 #include <memory> 22 23 #include <android/hardware/audio/2.0/IStreamIn.h> 24 #include <hidl/MQDescriptor.h> 25 #include <fmq/EventFlag.h> 26 #include <fmq/MessageQueue.h> 27 #include <hidl/Status.h> 28 #include <utils/Thread.h> 29 30 #include "Device.h" 31 #include "Stream.h" 32 33 namespace android { 34 namespace hardware { 35 namespace audio { 36 namespace V2_0 { 37 namespace implementation { 38 39 using ::android::hardware::audio::common::V2_0::AudioChannelMask; 40 using ::android::hardware::audio::common::V2_0::AudioDevice; 41 using ::android::hardware::audio::common::V2_0::AudioFormat; 42 using ::android::hardware::audio::common::V2_0::AudioSource; 43 using ::android::hardware::audio::V2_0::DeviceAddress; 44 using ::android::hardware::audio::V2_0::IStream; 45 using ::android::hardware::audio::V2_0::IStreamIn; 46 using ::android::hardware::audio::V2_0::ParameterValue; 47 using ::android::hardware::audio::V2_0::Result; 48 using ::android::hardware::Return; 49 using ::android::hardware::Void; 50 using ::android::hardware::hidl_vec; 51 using ::android::hardware::hidl_string; 52 using ::android::sp; 53 54 struct StreamIn : public IStreamIn { 55 typedef MessageQueue<ReadParameters, kSynchronizedReadWrite> CommandMQ; 56 typedef MessageQueue<uint8_t, kSynchronizedReadWrite> DataMQ; 57 typedef MessageQueue<ReadStatus, kSynchronizedReadWrite> StatusMQ; 58 59 StreamIn(const sp<Device>& device, audio_stream_in_t* stream); 60 61 // Methods from ::android::hardware::audio::V2_0::IStream follow. 62 Return<uint64_t> getFrameSize() override; 63 Return<uint64_t> getFrameCount() override; 64 Return<uint64_t> getBufferSize() override; 65 Return<uint32_t> getSampleRate() override; 66 Return<void> getSupportedSampleRates(getSupportedSampleRates_cb _hidl_cb) override; 67 Return<Result> setSampleRate(uint32_t sampleRateHz) override; 68 Return<AudioChannelMask> getChannelMask() override; 69 Return<void> getSupportedChannelMasks(getSupportedChannelMasks_cb _hidl_cb) override; 70 Return<Result> setChannelMask(AudioChannelMask mask) override; 71 Return<AudioFormat> getFormat() override; 72 Return<void> getSupportedFormats(getSupportedFormats_cb _hidl_cb) override; 73 Return<Result> setFormat(AudioFormat format) override; 74 Return<void> getAudioProperties(getAudioProperties_cb _hidl_cb) override; 75 Return<Result> addEffect(uint64_t effectId) override; 76 Return<Result> removeEffect(uint64_t effectId) override; 77 Return<Result> standby() override; 78 Return<AudioDevice> getDevice() override; 79 Return<Result> setDevice(const DeviceAddress& address) override; 80 Return<Result> setConnectedState(const DeviceAddress& address, bool connected) override; 81 Return<Result> setHwAvSync(uint32_t hwAvSync) override; 82 Return<void> getParameters( 83 const hidl_vec<hidl_string>& keys, getParameters_cb _hidl_cb) override; 84 Return<Result> setParameters(const hidl_vec<ParameterValue>& parameters) override; 85 Return<void> debugDump(const hidl_handle& fd) override; 86 Return<Result> close() override; 87 88 // Methods from ::android::hardware::audio::V2_0::IStreamIn follow. 89 Return<void> getAudioSource(getAudioSource_cb _hidl_cb) override; 90 Return<Result> setGain(float gain) override; 91 Return<void> prepareForReading( 92 uint32_t frameSize, uint32_t framesCount, prepareForReading_cb _hidl_cb) override; 93 Return<uint32_t> getInputFramesLost() override; 94 Return<void> getCapturePosition(getCapturePosition_cb _hidl_cb) override; 95 Return<Result> start() override; 96 Return<Result> stop() override; 97 Return<void> createMmapBuffer(int32_t minSizeFrames, createMmapBuffer_cb _hidl_cb) override; 98 Return<void> getMmapPosition(getMmapPosition_cb _hidl_cb) override; 99 100 static Result getCapturePositionImpl( 101 audio_stream_in_t *stream, uint64_t *frames, uint64_t *time); 102 103 private: 104 bool mIsClosed; 105 const sp<Device> mDevice; 106 audio_stream_in_t *mStream; 107 const sp<Stream> mStreamCommon; 108 const sp<StreamMmap<audio_stream_in_t>> mStreamMmap; 109 std::unique_ptr<CommandMQ> mCommandMQ; 110 std::unique_ptr<DataMQ> mDataMQ; 111 std::unique_ptr<StatusMQ> mStatusMQ; 112 EventFlag* mEfGroup; 113 std::atomic<bool> mStopReadThread; 114 sp<Thread> mReadThread; 115 116 virtual ~StreamIn(); 117 }; 118 119 } // namespace implementation 120 } // namespace V2_0 121 } // namespace audio 122 } // namespace hardware 123 } // namespace android 124 125 #endif // ANDROID_HARDWARE_AUDIO_V2_0_STREAMIN_H 126