oxmc
411aca7362
Pull in raspberry-vanilla's AOSP17 device tree changes for rpi5 while keeping all PawletOS customizations (A/B partition layout, sepolicy, zram, TWRP recovery scaffolding, ALSA HDMI pre-warm, product/overlay structure) intact on top. Upstream changes absorbed: - AOSP17 audio HAL refactor (StreamAlsa split into StreamAlsaBase/ StreamAlsaMonoPipe, Utils.cpp -> UtilsAlsa.cpp, new Bluetooth/stub helper classes, libeffects AIDL rebuild via *_ndk_shared defaults) - API level 36 -> 37, FCM matrix level 202504 -> 202604 - QuickSettings tile default split (SystemUIRpiOverlay, ported into pawlet_rpi_common where this overlay now lives) - vendor_tracing_descriptors added to enforce-product-packages-exist - misc AOSP17 logging header switch (android-base/logging.h -> Log.h) Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
63 lines
2.3 KiB
C++
63 lines
2.3 KiB
C++
/*
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* Copyright (C) 2026 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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#pragma once
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#include <atomic>
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#include <thread>
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#include <vector>
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#include <media/nbaio/MonoPipe.h>
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#include <media/nbaio/MonoPipeReader.h>
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#include "StreamAlsaBase.h"
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namespace aidl::android::hardware::audio::core {
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// Extends StreamAlsaBase with a MonoPipe + dedicated I/O thread per device.
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// The worker thread communicates with ALSA via a pipe, allowing the main
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// transfer() call to be decoupled from the ALSA read/write latency.
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// Used by StreamPrimary (and any other implementation that needs the pipe path).
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class StreamAlsaMonoPipe : public StreamAlsaBase {
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public:
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StreamAlsaMonoPipe(StreamContext* context, const Metadata& metadata, int readWriteRetries);
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~StreamAlsaMonoPipe();
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// Methods of 'DriverInterface'.
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::android::status_t standby() override;
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::android::status_t start() override;
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::android::status_t transfer(void* buffer, size_t frameCount, size_t* actualFrameCount,
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int32_t* latencyMs) override;
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void shutdown() override;
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private:
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::android::NBAIO_Format getPipeFormat() const;
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::android::sp<::android::MonoPipe> makeSink(bool writeCanBlock);
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::android::sp<::android::MonoPipeReader> makeSource(::android::MonoPipe* pipe);
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void inputIoThread(size_t idx);
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void outputIoThread(size_t idx);
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void teardownIo();
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// All fields below are only used on the worker thread.
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// Only 'libnbaio_mono' is vendor-accessible, thus no access to the multi-reader Pipe.
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std::vector<::android::sp<::android::MonoPipe>> mSinks;
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std::vector<::android::sp<::android::MonoPipeReader>> mSources;
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std::vector<std::thread> mIoThreads;
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std::atomic<bool> mIoThreadIsRunning = false; // used by all threads
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};
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} // namespace aidl::android::hardware::audio::core
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