/** @file
  Emulator Thunk to abstract OS services from pure EFI code

  Copyright (c) 2010 - 2011, Apple Inc. All rights reserved.<BR>

  This program and the accompanying materials
  are licensed and made available under the terms and conditions of the BSD License
  which accompanies this distribution.  The full text of the license may be found at
  http://opensource.org/licenses/bsd-license.php

  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

**/

#ifndef __EMU_IO_THUNK__
#define __EMU_IO_THUNK__


#define EMU_IO_THUNK_PROTOCO_GUID  \
 { 0x453368F6, 0x7C85, 0x434A, { 0xA9, 0x8A, 0x72, 0xD1, 0xB7, 0xFF, 0xA9, 0x26 } }


typedef struct _EMU_IO_THUNK_PROTOCOL  EMU_IO_THUNK_PROTOCOL;


typedef
EFI_STATUS
(EFIAPI *EMU_IO_THUNK_PROTOCOL_CLOSE_OPEN) (
  IN  EMU_IO_THUNK_PROTOCOL   *This
  );

typedef
EFI_STATUS
(EFIAPI *EMU_IO_THUNK_PROTOCOL_CLOSE_CLOSE) (
  IN  EMU_IO_THUNK_PROTOCOL   *This
  );

struct _EMU_IO_THUNK_PROTOCOL {
  EFI_GUID                            *Protocol;
  VOID                                *Interface;  /// Only be valid after Open() is called
  CHAR16                              *ConfigString;
  UINT16                              Instance;
  EMU_IO_THUNK_PROTOCOL_CLOSE_OPEN    Open;
  EMU_IO_THUNK_PROTOCOL_CLOSE_CLOSE   Close;
  VOID                                *Private;    /// Used by implementation
};

extern EFI_GUID gEmuIoThunkProtocolGuid;

#endif
