| 1 | /* |
| 2 | * smbus.h |
| 3 | * |
| 4 | * System Management Bus driver interface |
| 5 | * |
| 6 | * This file is part of the w32api package. |
| 7 | * |
| 8 | * Contributors: |
| 9 | * Created by Casper S. Hornstrup <chorns@users.sourceforge.net> |
| 10 | * |
| 11 | * THIS SOFTWARE IS NOT COPYRIGHTED |
| 12 | * |
| 13 | * This source code is offered for use in the public domain. You may |
| 14 | * use, modify or distribute it freely. |
| 15 | * |
| 16 | * This code is distributed in the hope that it will be useful but |
| 17 | * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY |
| 18 | * DISCLAIMED. This includes but is not limited to warranties of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 20 | * |
| 21 | */ |
| 22 | |
| 23 | #ifndef __SMBUS_H |
| 24 | #define __SMBUS_H |
| 25 | |
| 26 | #ifdef __cplusplus |
| 27 | extern "C" { |
| 28 | #endif |
| 29 | |
| 30 | #if !defined(SMBCLASS) |
| 31 | #define SMBCLASSAPI DECLSPEC_IMPORT |
| 32 | #else |
| 33 | #define SMBCLASSAPI |
| 34 | #endif |
| 35 | |
| 36 | #define SMB_BUS_REQUEST \ |
| 37 | CTL_CODE(FILE_DEVICE_UNKNOWN, 0, METHOD_NEITHER, FILE_ANY_ACCESS) |
| 38 | |
| 39 | #define SMB_DEREGISTER_ALARM_NOTIFY \ |
| 40 | CTL_CODE(FILE_DEVICE_UNKNOWN, 2, METHOD_NEITHER, FILE_ANY_ACCESS) |
| 41 | |
| 42 | #define SMB_REGISTER_ALARM_NOTIFY \ |
| 43 | CTL_CODE(FILE_DEVICE_UNKNOWN, 1, METHOD_NEITHER, FILE_ANY_ACCESS) |
| 44 | |
| 45 | |
| 46 | struct _SMB_CLASS; |
| 47 | |
| 48 | #define SMB_MAX_DATA_SIZE 32 |
| 49 | |
| 50 | /* SMB_REQUEST.Status constants */ |
| 51 | #define SMB_STATUS_OK 0x00 |
| 52 | #define SMB_UNKNOWN_FAILURE 0x07 |
| 53 | #define SMB_ADDRESS_NOT_ACKNOWLEDGED 0x10 |
| 54 | #define SMB_DEVICE_ERROR 0x11 |
| 55 | #define SMB_COMMAND_ACCESS_DENIED 0x12 |
| 56 | #define SMB_UNKNOWN_ERROR 0x13 |
| 57 | #define SMB_DEVICE_ACCESS_DENIED 0x17 |
| 58 | #define SMB_TIMEOUT 0x18 |
| 59 | #define SMB_UNSUPPORTED_PROTOCOL 0x19 |
| 60 | #define SMB_BUS_BUSY 0x1A |
| 61 | |
| 62 | /* SMB_REQUEST.Protocol constants */ |
| 63 | #define SMB_WRITE_QUICK 0x00 |
| 64 | #define SMB_READ_QUICK 0x01 |
| 65 | #define SMB_SEND_BYTE 0x02 |
| 66 | #define SMB_RECEIVE_BYTE 0x03 |
| 67 | #define SMB_WRITE_BYTE 0x04 |
| 68 | #define SMB_READ_BYTE 0x05 |
| 69 | #define SMB_WRITE_WORD 0x06 |
| 70 | #define SMB_READ_WORD 0x07 |
| 71 | #define SMB_WRITE_BLOCK 0x08 |
| 72 | #define SMB_READ_BLOCK 0x09 |
| 73 | #define SMB_PROCESS_CALL 0x0A |
| 74 | #define SMB_MAXIMUM_PROTOCOL 0x0A |
| 75 | |
| 76 | typedef struct _SMB_REQUEST { |
| 77 | UCHAR Status; |
| 78 | UCHAR Protocol; |
| 79 | UCHAR Address; |
| 80 | UCHAR Command; |
| 81 | UCHAR BlockLength; |
| 82 | UCHAR Data[SMB_MAX_DATA_SIZE]; |
| 83 | } SMB_REQUEST, *PSMB_REQUEST; |
| 84 | |
| 85 | typedef VOID |
| 86 | (NTAPI *SMB_ALARM_NOTIFY)( |
| 87 | PVOID Context, |
| 88 | UCHAR Address, |
| 89 | USHORT Data); |
| 90 | |
| 91 | typedef struct _SMB_REGISTER_ALARM { |
| 92 | UCHAR MinAddress; |
| 93 | UCHAR MaxAddress; |
| 94 | SMB_ALARM_NOTIFY NotifyFunction; |
| 95 | PVOID NotifyContext; |
| 96 | } SMB_REGISTER_ALARM, *PSMB_REGISTER_ALARM; |
| 97 | |
| 98 | /* SMB_CLASS.XxxVersion constants */ |
| 99 | #define SMB_CLASS_MAJOR_VERSION 0x0001 |
| 100 | #define SMB_CLASS_MINOR_VERSION 0x0000 |
| 101 | |
| 102 | typedef NTSTATUS |
| 103 | (NTAPI *SMB_RESET_DEVICE)( |
| 104 | IN struct _SMB_CLASS *SmbClass, |
| 105 | IN PVOID SmbMiniport); |
| 106 | |
| 107 | typedef VOID |
| 108 | (NTAPI *SMB_START_IO)( |
| 109 | IN struct _SMB_CLASS *SmbClass, |
| 110 | IN PVOID SmbMiniport); |
| 111 | |
| 112 | typedef NTSTATUS |
| 113 | (NTAPI *SMB_STOP_DEVICE)( |
| 114 | IN struct _SMB_CLASS *SmbClass, |
| 115 | IN PVOID SmbMiniport); |
| 116 | |
| 117 | typedef struct _SMB_CLASS { |
| 118 | USHORT MajorVersion; |
| 119 | USHORT MinorVersion; |
| 120 | PVOID Miniport; |
| 121 | PDEVICE_OBJECT DeviceObject; |
| 122 | PDEVICE_OBJECT PDO; |
| 123 | PDEVICE_OBJECT LowerDeviceObject; |
| 124 | PIRP CurrentIrp; |
| 125 | PSMB_REQUEST CurrentSmb; |
| 126 | SMB_RESET_DEVICE ResetDevice; |
| 127 | SMB_START_IO StartIo; |
| 128 | SMB_STOP_DEVICE StopDevice; |
| 129 | } SMB_CLASS, *PSMB_CLASS; |
| 130 | |
| 131 | SMBCLASSAPI |
| 132 | VOID |
| 133 | NTAPI |
| 134 | SmbClassAlarm( |
| 135 | IN PSMB_CLASS SmbClass, |
| 136 | IN UCHAR Address, |
| 137 | IN USHORT Data); |
| 138 | |
| 139 | SMBCLASSAPI |
| 140 | VOID |
| 141 | NTAPI |
| 142 | SmbClassCompleteRequest( |
| 143 | IN PSMB_CLASS SmbClass); |
| 144 | |
| 145 | typedef NTSTATUS |
| 146 | (NTAPI *PSMB_INITIALIZE_MINIPORT)( |
| 147 | IN PSMB_CLASS SmbClass, |
| 148 | IN PVOID MiniportExtension, |
| 149 | IN PVOID MiniportContext); |
| 150 | |
| 151 | SMBCLASSAPI |
| 152 | NTSTATUS |
| 153 | NTAPI |
| 154 | SmbClassCreateFdo( |
| 155 | IN PDRIVER_OBJECT DriverObject, |
| 156 | IN PDEVICE_OBJECT PDO, |
| 157 | IN ULONG MiniportExtensionSize, |
| 158 | IN PSMB_INITIALIZE_MINIPORT MiniportInitialize, |
| 159 | IN PVOID MiniportContext, |
| 160 | OUT PDEVICE_OBJECT *FDO); |
| 161 | |
| 162 | SMBCLASSAPI |
| 163 | NTSTATUS |
| 164 | NTAPI |
| 165 | SmbClassInitializeDevice( |
| 166 | IN ULONG MajorVersion, |
| 167 | IN ULONG MinorVersion, |
| 168 | IN PDRIVER_OBJECT DriverObject); |
| 169 | |
| 170 | SMBCLASSAPI |
| 171 | VOID |
| 172 | NTAPI |
| 173 | SmbClassLockDevice( |
| 174 | IN PSMB_CLASS SmbClass); |
| 175 | |
| 176 | SMBCLASSAPI |
| 177 | VOID |
| 178 | NTAPI |
| 179 | SmbClassUnlockDevice( |
| 180 | IN PSMB_CLASS SmbClass); |
| 181 | |
| 182 | #ifdef __cplusplus |
| 183 | } |
| 184 | #endif |
| 185 | |
| 186 | #endif /* __SMBUS_H */ |
| 187 | |