MdePkg/Include/IndustryStandard/SmBus.h

   1 /** @file
   2   This file declares the SMBus definitions defined in SmBus Specifciation
   3   V2.0.
   4
   5   Copyright (c) 2007, Intel Corporation
   6   All rights reserved. This program and the accompanying materials
   7   are licensed and made available under the terms and conditions of the BSD License
   8   which accompanies this distribution.  The full text of the license may be found at
   9   http://opensource.org/licenses/bsd-license.php
  10
  11   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13
  14   @par Revision Reference:
  15   These definitions are defined in System Management Bus (SmBus) Specification V2.0.
  16
  17 **/
  18
  19 #ifndef _SMBUS_H_
  20 #define _SMBUS_H_
  21
  22 //
  23 // Smbus Device Address, Smbus Device Command, Smbus Operations
  24 //
  25 typedef struct {
  26   UINTN SmbusDeviceAddress : 7;
  27 } EFI_SMBUS_DEVICE_ADDRESS;
  28
  29 typedef UINTN EFI_SMBUS_DEVICE_COMMAND;
  30
  31 typedef enum _EFI_SMBUS_OPERATION
  32 {
  33   EfiSmbusQuickRead,
  34   EfiSmbusQuickWrite,
  35   EfiSmbusReceiveByte,
  36   EfiSmbusSendByte,
  37   EfiSmbusReadByte,
  38   EfiSmbusWriteByte,
  39   EfiSmbusReadWord,
  40   EfiSmbusWriteWord,
  41   EfiSmbusReadBlock,
  42   EfiSmbusWriteBlock,
  43   EfiSmbusProcessCall,
  44   EfiSmbusBWBRProcessCall
  45 } EFI_SMBUS_OPERATION;
  46
  47 #endif
  48