mirror of
https://github.com/Evolution-X/hardware_interfaces
synced 2026-02-01 16:50:18 +00:00
49712b56d8
This method is used to bring out the hardware from standby. It replaces the ad hoc 'exitStandby' method in StreamUsb. Streamlined StreamUsb code to avoid locking during transfers. Updated StreamRemoteSubmix to use 'start'. Added extra checks to StreamStub to ensure that 'init/shutdown' and 'standby/start' methods are called as expected. This allows removing extra checks from non-stub stream implementations. Bug: 205884982 Test: atest VtsHalAudioCoreTargetTest Change-Id: I3615a7ca99cb4f1e149dcbfbc912f2ed58fb033f
130 lines
4.2 KiB
C++
130 lines
4.2 KiB
C++
/*
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* Copyright (C) 2023 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <cmath>
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#define LOG_TAG "AHAL_Stream"
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#include <android-base/logging.h>
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#include <audio_utils/clock.h>
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#include "core-impl/Module.h"
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#include "core-impl/StreamStub.h"
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using aidl::android::hardware::audio::common::SinkMetadata;
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using aidl::android::hardware::audio::common::SourceMetadata;
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using aidl::android::media::audio::common::AudioDevice;
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using aidl::android::media::audio::common::AudioOffloadInfo;
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using aidl::android::media::audio::common::MicrophoneInfo;
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namespace aidl::android::hardware::audio::core {
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StreamStub::StreamStub(const Metadata& metadata, StreamContext&& context)
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: StreamCommonImpl(metadata, std::move(context)),
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mFrameSizeBytes(getContext().getFrameSize()),
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mSampleRate(getContext().getSampleRate()),
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mIsAsynchronous(!!getContext().getAsyncCallback()),
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mIsInput(isInput(metadata)) {}
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::android::status_t StreamStub::init() {
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mIsInitialized = true;
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usleep(500);
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return ::android::OK;
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}
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::android::status_t StreamStub::drain(StreamDescriptor::DrainMode) {
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if (!mIsInitialized) {
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LOG(FATAL) << __func__ << ": must not happen for an uninitialized driver";
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}
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usleep(500);
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return ::android::OK;
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}
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::android::status_t StreamStub::flush() {
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if (!mIsInitialized) {
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LOG(FATAL) << __func__ << ": must not happen for an uninitialized driver";
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}
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usleep(500);
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return ::android::OK;
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}
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::android::status_t StreamStub::pause() {
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if (!mIsInitialized) {
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LOG(FATAL) << __func__ << ": must not happen for an uninitialized driver";
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}
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usleep(500);
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return ::android::OK;
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}
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::android::status_t StreamStub::standby() {
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if (!mIsInitialized) {
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LOG(FATAL) << __func__ << ": must not happen for an uninitialized driver";
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}
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usleep(500);
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mIsStandby = true;
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return ::android::OK;
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}
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::android::status_t StreamStub::start() {
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if (!mIsInitialized) {
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LOG(FATAL) << __func__ << ": must not happen for an uninitialized driver";
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}
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usleep(500);
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mIsStandby = false;
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return ::android::OK;
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}
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::android::status_t StreamStub::transfer(void* buffer, size_t frameCount, size_t* actualFrameCount,
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int32_t* latencyMs) {
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if (!mIsInitialized) {
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LOG(FATAL) << __func__ << ": must not happen for an uninitialized driver";
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}
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if (mIsStandby) {
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LOG(FATAL) << __func__ << ": must not happen while in standby";
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}
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static constexpr float kMicrosPerSecond = MICROS_PER_SECOND;
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static constexpr float kScaleFactor = .8f;
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if (mIsAsynchronous) {
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usleep(500);
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} else {
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const size_t delayUs = static_cast<size_t>(
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std::roundf(kScaleFactor * frameCount * kMicrosPerSecond / mSampleRate));
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usleep(delayUs);
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}
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if (mIsInput) {
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uint8_t* byteBuffer = static_cast<uint8_t*>(buffer);
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for (size_t i = 0; i < frameCount * mFrameSizeBytes; ++i) {
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byteBuffer[i] = std::rand() % 255;
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}
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}
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*actualFrameCount = frameCount;
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*latencyMs = Module::kLatencyMs;
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return ::android::OK;
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}
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void StreamStub::shutdown() {
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mIsInitialized = false;
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}
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StreamInStub::StreamInStub(const SinkMetadata& sinkMetadata, StreamContext&& context,
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const std::vector<MicrophoneInfo>& microphones)
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: StreamStub(sinkMetadata, std::move(context)), StreamIn(microphones) {}
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StreamOutStub::StreamOutStub(const SourceMetadata& sourceMetadata, StreamContext&& context,
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const std::optional<AudioOffloadInfo>& offloadInfo)
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: StreamStub(sourceMetadata, std::move(context)), StreamOut(offloadInfo) {}
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} // namespace aidl::android::hardware::audio::core
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