drivers/video/amlogic-decoder/device_ctx.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 GARNET_DRIVERS_VIDEO_AMLOGIC_DECODER_DEVICE_CTX_H_
#define GARNET_DRIVERS_VIDEO_AMLOGIC_DECODER_DEVICE_CTX_H_

#include "device_fidl.h"
#include "driver_ctx.h"

#include "amlogic-video.h"

// A pointer to an instance of this class is the per-device "ctx".  The purpose
// of this class is to provide a place for device-lifetime stuff to be rooted,
// without itself being any particular aspect of the driver.
//
// TODO(dustingreen): If this device's release() can get called, we'll want to
// sequence the shutdown more carefully/explicitly.  Just destructing an
// instance of this class isn't tested to actually shut down cleanly (yet).
class DeviceCtx {
 public:
  explicit DeviceCtx(DriverCtx* driver);
  ~DeviceCtx();

  DriverCtx* driver() { return driver_; }

  AmlogicVideo* video() { return video_.get(); }

  DeviceFidl* device_fidl() { return device_fidl_.get(); }

 private:
  DriverCtx* driver_;

  //
  // Device driving:
  //

  std::unique_ptr<AmlogicVideo> video_;

  //
  // Interface handling:
  //

  std::unique_ptr<DeviceFidl> device_fidl_;
};

#endif  // GARNET_DRIVERS_VIDEO_AMLOGIC_DECODER_DEVICE_CTX_H_