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/** @file
Copyright (c) 2008-2009 Apple Inc. All rights reserved.<BR>
All rights reserved. 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 __EMBEDDED_EXTERNAL_DEVICE_H__
#define __EMBEDDED_EXTERNAL_DEVICE_H__
//
// Protocol GUID
//
#define EMBEDDED_EXTERNAL_DEVICE_PROTOCOL_GUID { 0x735F8C64, 0xD696, 0x44D0, { 0xBD, 0xF2, 0x44, 0x7F, 0xD0, 0x5A, 0x54, 0x06 }}
//
// Protocol interface structure
//
typedef struct _EMBEDDED_EXTERNAL_DEVICE EMBEDDED_EXTERNAL_DEVICE;
//
// Function Prototypes
//
typedef
EFI_STATUS
(EFIAPI *EMBEDDED_EXTERNAL_DEVICE_READ) (
IN EMBEDDED_EXTERNAL_DEVICE *This,
IN UINTN Register,
IN UINTN Length,
OUT VOID *Buffer
)
/*++
Routine Description:
Read a set of contiguous external device registers.
Arguments:
This - pointer to protocol
Offset - starting register number
Length - number of bytes to read
Buffer - destination buffer
Returns:
EFI_SUCCESS - registers read successfully
--*/
;
typedef
EFI_STATUS
(EFIAPI *EMBEDDED_EXTERNAL_DEVICE_WRITE) (
IN EMBEDDED_EXTERNAL_DEVICE *This,
IN UINTN Register,
IN UINTN Length,
IN VOID *Buffer
)
/*++
Routine Description:
Write to a set of contiguous external device registers.
Arguments:
This - pointer to protocol
Offset - starting register number
Length - number of bytes to write
Buffer - source buffer
Returns:
EFI_SUCCESS - registers written successfully
--*/
;
struct _EMBEDDED_EXTERNAL_DEVICE {
EMBEDDED_EXTERNAL_DEVICE_READ Read;
EMBEDDED_EXTERNAL_DEVICE_WRITE Write;
};
extern EFI_GUID gEmbeddedExternalDeviceProtocolGuid;
#endif // __EMBEDDED_EXTERNAL_DEVICE_H__
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