/** @file
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Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __EMBEDDED_EXTERNAL_DEVICE_H__
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#define __EMBEDDED_EXTERNAL_DEVICE_H__
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//
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// Protocol GUID
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//
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#define EMBEDDED_EXTERNAL_DEVICE_PROTOCOL_GUID { 0x735F8C64, 0xD696, 0x44D0, { 0xBD, 0xF2, 0x44, 0x7F, 0xD0, 0x5A, 0x54, 0x06 }}
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//
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// Protocol interface structure
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//
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typedef struct _EMBEDDED_EXTERNAL_DEVICE EMBEDDED_EXTERNAL_DEVICE;
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//
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// Function Prototypes
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//
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typedef
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EFI_STATUS
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(EFIAPI *EMBEDDED_EXTERNAL_DEVICE_READ) (
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IN EMBEDDED_EXTERNAL_DEVICE *This,
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IN UINTN Register,
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IN UINTN Length,
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OUT VOID *Buffer
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)
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/*++
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Routine Description:
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Read a set of contiguous external device registers.
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Arguments:
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This - pointer to protocol
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Offset - starting register number
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Length - number of bytes to read
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Buffer - destination buffer
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Returns:
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EFI_SUCCESS - registers read successfully
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--*/
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;
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typedef
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EFI_STATUS
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(EFIAPI *EMBEDDED_EXTERNAL_DEVICE_WRITE) (
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IN EMBEDDED_EXTERNAL_DEVICE *This,
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IN UINTN Register,
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IN UINTN Length,
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IN VOID *Buffer
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)
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/*++
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Routine Description:
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Write to a set of contiguous external device registers.
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Arguments:
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This - pointer to protocol
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Offset - starting register number
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Length - number of bytes to write
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Buffer - source buffer
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Returns:
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EFI_SUCCESS - registers written successfully
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--*/
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;
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struct _EMBEDDED_EXTERNAL_DEVICE {
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EMBEDDED_EXTERNAL_DEVICE_READ Read;
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EMBEDDED_EXTERNAL_DEVICE_WRITE Write;
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};
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extern EFI_GUID gEmbeddedExternalDeviceProtocolGuid;
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#endif // __EMBEDDED_EXTERNAL_DEVICE_H__
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