3 Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
5 SPDX-License-Identifier: BSD-2-Clause-Patent
9 #ifndef __EMBEDDED_EXTERNAL_DEVICE_H__
10 #define __EMBEDDED_EXTERNAL_DEVICE_H__
15 #define EMBEDDED_EXTERNAL_DEVICE_PROTOCOL_GUID { 0x735F8C64, 0xD696, 0x44D0, { 0xBD, 0xF2, 0x44, 0x7F, 0xD0, 0x5A, 0x54, 0x06 }}
18 // Protocol interface structure
20 typedef struct _EMBEDDED_EXTERNAL_DEVICE EMBEDDED_EXTERNAL_DEVICE
;
23 // Function Prototypes
27 (EFIAPI
*EMBEDDED_EXTERNAL_DEVICE_READ
)(
28 IN EMBEDDED_EXTERNAL_DEVICE
*This
,
38 Read a set of contiguous external device registers.
42 This - pointer to protocol
43 Offset - starting register number
44 Length - number of bytes to read
45 Buffer - destination buffer
49 EFI_SUCCESS - registers read successfully
56 (EFIAPI
*EMBEDDED_EXTERNAL_DEVICE_WRITE
)(
57 IN EMBEDDED_EXTERNAL_DEVICE
*This
,
67 Write to a set of contiguous external device registers.
71 This - pointer to protocol
72 Offset - starting register number
73 Length - number of bytes to write
74 Buffer - source buffer
78 EFI_SUCCESS - registers written successfully
83 struct _EMBEDDED_EXTERNAL_DEVICE
{
84 EMBEDDED_EXTERNAL_DEVICE_READ Read
;
85 EMBEDDED_EXTERNAL_DEVICE_WRITE Write
;
88 extern EFI_GUID gEmbeddedExternalDeviceProtocolGuid
;
90 #endif // __EMBEDDED_EXTERNAL_DEVICE_H__