You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
81 lines
2.5 KiB
81 lines
2.5 KiB
/** @file
|
|
Internal header file for Smbus library.
|
|
|
|
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
|
|
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 __INTERNAL_SMBUS_LIB_H_
|
|
#define __INTERNAL_SMBUS_LIB_H_
|
|
|
|
|
|
#include <PiPei.h>
|
|
|
|
#include <Ppi/Smbus2.h>
|
|
|
|
#include <Library/SmbusLib.h>
|
|
#include <Library/DebugLib.h>
|
|
#include <Library/PeiServicesLib.h>
|
|
#include <Library/BaseMemoryLib.h>
|
|
|
|
//
|
|
// Declaration for internal functions
|
|
//
|
|
|
|
/**
|
|
Gets Smbus PPIs.
|
|
|
|
This internal function retrieves Smbus PPI from PPI database.
|
|
|
|
@param VOID
|
|
|
|
@return The pointer to Smbus PPI.
|
|
|
|
**/
|
|
EFI_PEI_SMBUS2_PPI *
|
|
InternalGetSmbusPpi (
|
|
VOID
|
|
);
|
|
|
|
/**
|
|
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 to execute 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
|
|
);
|
|
|
|
#endif
|