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//**********************************************************************
//**********************************************************************
//** **
//** (C)Copyright 1985-2009, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 6145-F Northbelt Pkwy, Norcross, GA 30071 **
//** **
//** Phone: (770)-246-8600 **
//** **
//**********************************************************************
//**********************************************************************
//**********************************************************************
// $Header: /Alaska/BIN/Core/Include/SmBus.h 2 2/05/11 2:05p Artems $
//
// $Revision: 2 $
//
// $Date: 2/05/11 2:05p $
//**********************************************************************
// Revision History
// ----------------
// $Log: /Alaska/BIN/Core/Include/SmBus.h $
//
// 2 2/05/11 2:05p Artems
// Added helper macros to simplify SMBUS address handling
//
// 1 1/16/09 9:57a Felixp
// SM Bus Protocol and PPI headers are updated. Common code moved into
// newly created header file (Include\SmBus.h).
//
//**********************************************************************
//<AMI_FHDR_START>
//
// Name: SmBus.h
//
// Description: SM BUS data structure declarations
//
//<AMI_FHDR_END>
//**********************************************************************
#ifndef __SMBUS_MAIN__H__
#define __SMBUS_MAIN__H__
#ifdef __cplusplus
extern "C" {
#endif
#include <Efi.h>
#pragma pack(1)
// PEC BIT is bit 22 in SMBUS address
#define SMBUS_LIB_PEC_BIT (1 << 22)
/**
Macro that converts SMBUS slave address, SMBUS command, SMBUS data length,
and PEC to a value that can be passed to the SMBUS Library functions.
Computes an address that is compatible with the SMBUS Library functions.
The unused upper bits of SlaveAddress, Command, and Length are stripped
prior to the generation of the address.
@param SlaveAddress SMBUS Slave Address. Range 0..127.
@param Command SMBUS Command. Range 0..255.
@param Length SMBUS Data Length. Range 0..32.
@param Pec TRUE if Packet Error Checking is enabled. Otherwise FALSE.
**/
#define SMBUS_LIB_ADDRESS(SlaveAddress,Command,Length,Pec) \
( ((Pec) ? SMBUS_LIB_PEC_BIT: 0) | \
(((SlaveAddress) & 0x7f) << 1) | \
(((Command) & 0xff) << 8) | \
(((Length) & 0x3f) << 16) \
)
#define SMBUS_LIB_SLAVE_ADDRESS(SmBusAddress) (((SmBusAddress) >> 1) & 0x7f)
#define SMBUS_LIB_COMMAND(SmBusAddress) (((SmBusAddress) >> 8) & 0xff)
#define SMBUS_LIB_LENGTH(SmBusAddress) (((SmBusAddress) >> 16) & 0x3f)
#define SMBUS_LIB_PEC(SmBusAddress) ((BOOLEAN) (((SmBusAddress) & SMBUS_LIB_PEC_BIT) != 0))
#define SMBUS_LIB_RESERVED(SmBusAddress) ((SmBusAddress) & ~(((1 << 22) - 2) | SMBUS_LIB_PEC_BIT))
typedef struct {
UINTN SmbusDeviceAddress:7;
} EFI_SMBUS_DEVICE_ADDRESS;
typedef UINTN EFI_SMBUS_DEVICE_COMMAND;
typedef enum _EFI_SMBUS_OPERATION {
EfiSmbusQuickRead,
EfiSmbusQuickWrite,
EfiSmbusReceiveByte,
EfiSmbusSendByte,
EfiSmbusReadByte,
EfiSmbusWriteByte,
EfiSmbusReadWord,
EfiSmbusWriteWord,
EfiSmbusReadBlock,
EfiSmbusWriteBlock,
EfiSmbusProcessCall,
EfiSmbusBWBRProcessCall
} EFI_SMBUS_OPERATION;
//******************************************************
// EFI_SMBUS_UDID
//******************************************************
typedef struct {
UINT32 VendorSpecificId;
UINT16 SubsystemDeviceId;
UINT16 SubsystemVendorId;
UINT16 Interface;
UINT16 DeviceId;
UINT16 VendorId;
UINT8 VendorRevision;
UINT8 DeviceCapabilities;
} EFI_SMBUS_UDID;
//*******************************************************
// EFI_SMBUS_DEVICE_MAP
//*******************************************************
typedef struct {
EFI_SMBUS_DEVICE_ADDRESS SmbusDeviceAddress;
EFI_SMBUS_UDID SmbusDeviceUdid;
} EFI_SMBUS_DEVICE_MAP;
#pragma pack()
/****** DO NOT WRITE BELOW THIS LINE *******/
#ifdef __cplusplus
}
#endif
#endif
//**********************************************************************
//**********************************************************************
//** **
//** (C)Copyright 1985-2009, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 6145-F Northbelt Pkwy, Norcross, GA 30071 **
//** **
//** Phone: (770)-246-8600 **
//** **
//**********************************************************************
//**********************************************************************
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