src/graphics/display/drivers/vim-display/vim-audio.h

// Copyright 2018 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_GRAPHICS_DISPLAY_DRIVERS_VIM_DISPLAY_VIM_AUDIO_H_
#define SRC_GRAPHICS_DISPLAY_DRIVERS_VIM_DISPLAY_VIM_AUDIO_H_

#include <fuchsia/hardware/platform/device/c/banjo.h>
#include <zircon/compiler.h>
#include <zircon/types.h>

__BEGIN_CDECLS
struct vim2_display;  // fwd decl
__END_CDECLS

#ifdef __cplusplus

#include <lib/fzl/pinned-vmo.h>
#include <lib/zx/bti.h>
#include <lib/zx/vmo.h>

#include <fbl/macros.h>

#include "vim-audio-utils.h"
#include "vim-spdif-audio-stream.h"

namespace audio {
namespace vim2 {

class Vim2Audio {
 public:
  Vim2Audio() = default;
  ~Vim2Audio();
  DISALLOW_COPY_ASSIGN_AND_MOVE(Vim2Audio);

  // Ddk Hooks
  static zx_status_t DriverBind(zx_device_t* parent);
  void DdkUnbindDeprecated();
  void DdkRelease();

  // Display driver hooks
  zx_status_t Init(const pdev_protocol_t* pdev);
  void OnDisplayAdded(const struct vim2_display* display, uint64_t display_id);
  void OnDisplayRemoved(uint64_t display_id);

 private:
  zx::bti audio_bti_;
  fbl::RefPtr<Registers> regs_;
  fbl::RefPtr<RefCountedVmo> spdif_rb_vmo_;
  fbl::RefPtr<Vim2SpdifAudioStream> spdif_stream_;
};

}  // namespace vim2
}  // namespace audio

#endif  // __cplusplus

__BEGIN_CDECLS
typedef struct vim2_audio vim2_audio_t;

zx_status_t vim2_audio_create(const pdev_protocol_t* pdev, vim2_audio_t** out_audio);
void vim2_audio_shutdown(vim2_audio_t** inout_audio);

void vim2_audio_on_display_added(const struct vim2_display* display, uint64_t display_id);
void vim2_audio_on_display_removed(const struct vim2_display* display, uint64_t display_id);
__END_CDECLS

#endif  // SRC_GRAPHICS_DISPLAY_DRIVERS_VIM_DISPLAY_VIM_AUDIO_H_