zircon/system/dev/block/sdmmc/sdmmc-root-device.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.

#pragma once

#include <threads.h>

#include <atomic>

#include <ddktl/device.h>
#include <ddktl/protocol/sdmmc.h>
#include <fbl/ref_ptr.h>

#include "sdio-controller-device.h"
#include "sdmmc-block-device.h"

namespace sdmmc {

class SdmmcRootDevice;
using SdmmcRootDeviceType = ddk::Device<SdmmcRootDevice, ddk::Unbindable>;

class SdmmcRootDevice : public SdmmcRootDeviceType {
 public:
  static zx_status_t Bind(void* ctx, zx_device_t* parent);

  void DdkUnbind();
  void DdkRelease();

  zx_status_t Init();

 private:
  SdmmcRootDevice(zx_device_t* parent, const ddk::SdmmcProtocolClient& host)
      : SdmmcRootDeviceType(parent), host_(host) {}

  int WorkerThread();

  const ddk::SdmmcProtocolClient host_;

  thrd_t worker_thread_ = 0;

  std::atomic<bool> dead_ = false;

  fbl::RefPtr<SdmmcBlockDevice> block_dev_;
  fbl::RefPtr<SdioControllerDevice> sdio_dev_;
};

}  // namespace sdmmc