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/** @file
Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#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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