| Jonathan Zhang | 6d27778 | 2020-06-09 17:56:53 -0700 | [diff] [blame] | 1 | /** @file |
| 2 | This file declares the SMBus definitions defined in SmBus Specification V2.0 |
| 3 | and defined in PI1.0 specification volume 5. |
| 4 | |
| 5 | Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR> |
| 6 | SPDX-License-Identifier: BSD-2-Clause-Patent |
| 7 | |
| 8 | **/ |
| 9 | |
| 10 | #ifndef _SMBUS_H_ |
| 11 | #define _SMBUS_H_ |
| 12 | |
| 13 | |
| 14 | /// |
| 15 | /// UDID of SMBUS device. |
| 16 | /// |
| 17 | typedef struct { |
| 18 | UINT32 VendorSpecificId; |
| 19 | UINT16 SubsystemDeviceId; |
| 20 | UINT16 SubsystemVendorId; |
| 21 | UINT16 Interface; |
| 22 | UINT16 DeviceId; |
| 23 | UINT16 VendorId; |
| 24 | UINT8 VendorRevision; |
| 25 | UINT8 DeviceCapabilities; |
| 26 | } EFI_SMBUS_UDID; |
| 27 | |
| 28 | /// |
| 29 | /// Smbus Device Address |
| 30 | /// |
| 31 | typedef struct { |
| 32 | /// |
| 33 | /// The SMBUS hardware address to which the SMBUS device is preassigned or allocated. |
| 34 | /// |
| 35 | UINTN SmbusDeviceAddress : 7; |
| 36 | } EFI_SMBUS_DEVICE_ADDRESS; |
| 37 | |
| 38 | typedef struct { |
| 39 | /// |
| 40 | /// The SMBUS hardware address to which the SMBUS device is preassigned or |
| 41 | /// allocated. Type EFI_SMBUS_DEVICE_ADDRESS is defined in EFI_PEI_SMBUS2_PPI.Execute(). |
| 42 | /// |
| 43 | EFI_SMBUS_DEVICE_ADDRESS SmbusDeviceAddress; |
| 44 | /// |
| 45 | /// The SMBUS Unique Device Identifier (UDID) as defined in EFI_SMBUS_UDID. |
| 46 | /// Type EFI_SMBUS_UDID is defined in EFI_PEI_SMBUS2_PPI.ArpDevice(). |
| 47 | /// |
| 48 | EFI_SMBUS_UDID SmbusDeviceUdid; |
| 49 | } EFI_SMBUS_DEVICE_MAP; |
| 50 | |
| 51 | /// |
| 52 | /// Smbus Operations |
| 53 | /// |
| 54 | typedef enum _EFI_SMBUS_OPERATION { |
| 55 | EfiSmbusQuickRead, |
| 56 | EfiSmbusQuickWrite, |
| 57 | EfiSmbusReceiveByte, |
| 58 | EfiSmbusSendByte, |
| 59 | EfiSmbusReadByte, |
| 60 | EfiSmbusWriteByte, |
| 61 | EfiSmbusReadWord, |
| 62 | EfiSmbusWriteWord, |
| 63 | EfiSmbusReadBlock, |
| 64 | EfiSmbusWriteBlock, |
| 65 | EfiSmbusProcessCall, |
| 66 | EfiSmbusBWBRProcessCall |
| 67 | } EFI_SMBUS_OPERATION; |
| 68 | |
| 69 | /// |
| 70 | /// EFI_SMBUS_DEVICE_COMMAND |
| 71 | /// |
| 72 | typedef UINTN EFI_SMBUS_DEVICE_COMMAND; |
| 73 | |
| 74 | #endif |
| 75 | |