mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-26 12:05:36 +01:00
80 lines
2.6 KiB
C
80 lines
2.6 KiB
C
/** @file
|
|
Internal header file for Smbus library.
|
|
|
|
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
|
|
**/
|
|
|
|
#ifndef __INTERNAL_SMBUS_LIB_H_
|
|
#define __INTERNAL_SMBUS_LIB_H_
|
|
|
|
|
|
#include <PiDxe.h>
|
|
|
|
#include <Protocol/SmbusHc.h>
|
|
|
|
#include <Library/SmbusLib.h>
|
|
#include <Library/DebugLib.h>
|
|
#include <Library/UefiBootServicesTableLib.h>
|
|
#include <Library/BaseMemoryLib.h>
|
|
|
|
#include <IndustryStandard/SmBus.h>
|
|
|
|
//
|
|
// Declaration for internal functions
|
|
//
|
|
/**
|
|
Executes an SMBus operation to an SMBus controller.
|
|
|
|
This function provides a standard way to execute Smbus script
|
|
as defined in the SmBus Specification. The data can either be of
|
|
the Length byte, word, or a block of data.
|
|
|
|
@param SmbusOperation Signifies which particular SMBus hardware protocol instance
|
|
that it will use toexecute the SMBus transactions.
|
|
@param SmBusAddress The address that encodes the SMBUS Slave Address,
|
|
SMBUS Command, SMBUS Data Length, and PEC.
|
|
@param Length Signifies the number of bytes that this operation will
|
|
do. The maximum number of bytes can be revision specific
|
|
and operation specific.
|
|
@param Buffer Contains the value of data to execute to the SMBus slave
|
|
device. Not all operations require this argument. The
|
|
length of this buffer is identified by Length.
|
|
@param Status Return status for the executed command.
|
|
This is an optional parameter and may be NULL.
|
|
|
|
@return The actual number of bytes that are executed for this operation.
|
|
|
|
**/
|
|
UINTN
|
|
InternalSmBusExec (
|
|
IN EFI_SMBUS_OPERATION SmbusOperation,
|
|
IN UINTN SmBusAddress,
|
|
IN UINTN Length,
|
|
IN OUT VOID *Buffer,
|
|
OUT RETURN_STATUS *Status OPTIONAL
|
|
);
|
|
|
|
/**
|
|
The constructor function caches the pointer to Smbus protocol.
|
|
|
|
The constructor function locates Smbus protocol from protocol database.
|
|
It will ASSERT() if that operation fails and it will always return EFI_SUCCESS.
|
|
|
|
@param ImageHandle The firmware allocated handle for the EFI image.
|
|
@param SystemTable A pointer to the EFI System Table.
|
|
|
|
@retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
SmbusLibConstructor (
|
|
IN EFI_HANDLE ImageHandle,
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
|
);
|
|
|
|
#endif
|