mirror of https://github.com/acidanthera/audk.git
62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
/** @file
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This file declares the SMBus definitions defined in SmBus Specifciation
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V2.0.
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Copyright (c) 2007, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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@par Revision Reference:
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These definitions are defined in System Management Bus (SmBus) Specification V2.0.
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**/
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#ifndef _SMBUS_H_
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#define _SMBUS_H_
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///
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/// UDID of SMBUS device.
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///
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typedef struct {
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UINT32 VendorSpecificId;
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UINT16 SubsystemDeviceId;
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UINT16 SubsystemVendorId;
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UINT16 Interface;
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UINT16 DeviceId;
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UINT16 VendorId;
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UINT8 VendorRevision;
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UINT8 DeviceCapabilities;
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} EFI_SMBUS_UDID;
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///
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/// Smbus Device Address, Smbus Device Command, Smbus Operations
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///
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typedef struct {
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UINTN SmbusDeviceAddress : 7;
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} EFI_SMBUS_DEVICE_ADDRESS;
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typedef enum _EFI_SMBUS_OPERATION
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{
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EfiSmbusQuickRead,
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EfiSmbusQuickWrite,
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EfiSmbusReceiveByte,
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EfiSmbusSendByte,
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EfiSmbusReadByte,
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EfiSmbusWriteByte,
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EfiSmbusReadWord,
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EfiSmbusWriteWord,
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EfiSmbusReadBlock,
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EfiSmbusWriteBlock,
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EfiSmbusProcessCall,
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EfiSmbusBWBRProcessCall
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} EFI_SMBUS_OPERATION;
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#endif
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