src/media/audio/drivers/mt8167-tdm-input/audio-stream-in.h

// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef SRC_MEDIA_AUDIO_DRIVERS_MT8167_TDM_INPUT_AUDIO_STREAM_IN_H_
#define SRC_MEDIA_AUDIO_DRIVERS_MT8167_TDM_INPUT_AUDIO_STREAM_IN_H_

#include <fuchsia/hardware/gpio/cpp/banjo.h>
#include <lib/device-protocol/pdev.h>
#include <lib/fzl/pinned-vmo.h>
#include <lib/simple-audio-stream/simple-audio-stream.h>
#include <lib/zircon-internal/thread_annotations.h>
#include <lib/zx/bti.h>
#include <lib/zx/vmo.h>

#include <optional>

#include <audio-proto/audio-proto.h>
#include <soc/mt8167/mt8167-audio-in.h>

#include "tlv320adc.h"

namespace audio {
namespace mt8167 {

class Mt8167AudioStreamIn : public SimpleAudioStream {
 protected:
  zx_status_t Init() __TA_REQUIRES(domain_token()) override;
  zx_status_t ChangeFormat(const audio_proto::StreamSetFmtReq& req)
      __TA_REQUIRES(domain_token()) override;
  zx_status_t GetBuffer(const audio_proto::RingBufGetBufferReq& req, uint32_t* out_num_rb_frames,
                        zx::vmo* out_buffer) __TA_REQUIRES(domain_token()) override;
  zx_status_t Start(uint64_t* out_start_time) __TA_REQUIRES(domain_token()) override;
  zx_status_t Stop() __TA_REQUIRES(domain_token()) override;

 private:
  friend class SimpleAudioStream;
  friend class fbl::RefPtr<Mt8167AudioStreamIn>;

  Mt8167AudioStreamIn(zx_device_t* parent);
  ~Mt8167AudioStreamIn() {}

  zx_status_t AddFormats() __TA_REQUIRES(domain_token());
  zx_status_t InitBuffer(size_t size) TA_REQ(domain_token());
  zx_status_t InitPdev() TA_REQ(domain_token());
  void ProcessRingNotification();

  uint32_t us_per_notification_ = 0;

  async::TaskClosureMethod<Mt8167AudioStreamIn, &Mt8167AudioStreamIn::ProcessRingNotification>
      notify_timer_ TA_GUARDED(domain_token()){this};
  ddk::PDev pdev_ TA_GUARDED(domain_token());
  std::unique_ptr<Tlv320adc> codec_;
  zx::vmo ring_buffer_vmo_ TA_GUARDED(domain_token());
  fzl::PinnedVmo pinned_ring_buffer_ TA_GUARDED(domain_token());
  std::unique_ptr<MtAudioInDevice> mt_audio_;
  ddk::GpioProtocolClient codec_reset_ TA_GUARDED(domain_token());
  zx::bti bti_ TA_GUARDED(domain_token());
};
}  // namespace mt8167
}  // namespace audio

#endif  // SRC_MEDIA_AUDIO_DRIVERS_MT8167_TDM_INPUT_AUDIO_STREAM_IN_H_