1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
# coding: utf-8
"""
Ctypes wrapper module for IXXAT Virtual CAN Interface V3 on win32 systems
Copyright (C) 2016 Giuseppe Corbelli <giuseppe.corbelli@weightpack.com>
"""
import ctypes
class LUID(ctypes.Structure):
_fields_ = [
("LowPart", ctypes.c_uint32),
("HighPart", ctypes.c_int32),
]
PLUID = ctypes.POINTER(LUID)
class VCIID(ctypes.Union):
_fields_ = [
("AsLuid", LUID),
("AsInt64", ctypes.c_int64),
]
PVCIID = ctypes.POINTER(VCIID)
class GUID(ctypes.Structure):
_fields_ = [
("Data1", ctypes.c_uint32),
("Data2", ctypes.c_uint16),
("Data3", ctypes.c_uint16),
("Data4", ctypes.c_char * 8),
]
class VCIDEVICEINFO(ctypes.Structure):
class UniqueHardwareId(ctypes.Union):
_fields_ = [
("AsChar", ctypes.c_char * 16),
("AsGuid", GUID),
]
_fields_ = [
("VciObjectId", VCIID),
("DeviceClass", GUID),
("DriverMajorVersion", ctypes.c_uint8),
("DriverMinorVersion", ctypes.c_uint8),
("DriverBuildVersion", ctypes.c_uint16),
("HardwareBranchVersion", ctypes.c_uint8),
("HardwareMajorVersion", ctypes.c_uint8),
("HardwareMinorVersion", ctypes.c_uint8),
("HardwareBuildVersion", ctypes.c_uint8),
("UniqueHardwareId", UniqueHardwareId),
("Description", ctypes.c_char * 128),
("Manufacturer", ctypes.c_char * 126),
("DriverReleaseVersion", ctypes.c_uint16),
]
def __str__(self):
return "Mfg: {}, Dev: {} HW: {}.{}.{}.{} Drv: {}.{}.{}.{}".format(
self.Manufacturer,
self.Description,
self.HardwareBranchVersion,
self.HardwareMajorVersion,
self.HardwareMinorVersion,
self.HardwareBuildVersion,
self.DriverReleaseVersion,
self.DriverMajorVersion,
self.DriverMinorVersion,
self.DriverBuildVersion
)
PVCIDEVICEINFO = ctypes.POINTER(VCIDEVICEINFO)
class CANLINESTATUS(ctypes.Structure):
_fields_ = [
("bOpMode", ctypes.c_uint8),
("bBtReg0", ctypes.c_uint8),
("bBtReg1", ctypes.c_uint8),
("bBusLoad", ctypes.c_uint8),
("dwStatus", ctypes.c_uint32)
]
PCANLINESTATUS = ctypes.POINTER(CANLINESTATUS)
class CANCHANSTATUS(ctypes.Structure):
_fields_ = [
("sLineStatus", CANLINESTATUS),
("fActivated", ctypes.c_uint32),
("fRxOverrun", ctypes.c_uint32),
("bRxFifoLoad", ctypes.c_uint8),
("bTxFifoLoad", ctypes.c_uint8)
]
PCANCHANSTATUS = ctypes.POINTER(CANCHANSTATUS)
class CANCAPABILITIES(ctypes.Structure):
_fields_ = [
("wCtrlType", ctypes.c_uint16),
("wBusCoupling", ctypes.c_uint16),
("dwFeatures", ctypes.c_uint32),
("dwClockFreq", ctypes.c_uint32),
("dwTscDivisor", ctypes.c_uint32),
("dwCmsDivisor", ctypes.c_uint32),
("dwCmsMaxTicks", ctypes.c_uint32),
("dwDtxDivisor", ctypes.c_uint32),
("dwDtxMaxTicks", ctypes.c_uint32)
]
PCANCAPABILITIES = ctypes.POINTER(CANCAPABILITIES)
class CANMSGINFO(ctypes.Union):
class Bytes(ctypes.Structure):
_fields_ = [
("bType", ctypes.c_uint8),
("bAddFlags", ctypes.c_uint8),
("bFlags", ctypes.c_uint8),
("bAccept", ctypes.c_uint8),
]
class Bits(ctypes.Structure):
_fields_ = [
("type", ctypes.c_uint32, 8),
("ssm", ctypes.c_uint32, 1),
("hi", ctypes.c_uint32, 2),
("res", ctypes.c_uint32, 5),
("dlc", ctypes.c_uint32, 4),
("ovr", ctypes.c_uint32, 1),
("srr", ctypes.c_uint32, 1),
("rtr", ctypes.c_uint32, 1),
("ext", ctypes.c_uint32, 1),
("afc", ctypes.c_uint32, 8)
]
_fields_ = [
("Bytes", Bytes),
("Bits", Bits)
]
PCANMSGINFO = ctypes.POINTER(CANMSGINFO)
class CANMSG(ctypes.Structure):
_fields_ = [
("dwTime", ctypes.c_uint32),
("dwMsgId", ctypes.c_uint32),
("uMsgInfo", CANMSGINFO),
("abData", ctypes.c_uint8 * 8)
]
PCANMSG = ctypes.POINTER(CANMSG)
class CANCYCLICTXMSG(ctypes.Structure):
_fields_ = [
("wCycleTime", ctypes.c_uint16),
("bIncrMode", ctypes.c_uint8),
("bByteIndex", ctypes.c_uint8),
("dwMsgId", ctypes.c_uint32),
("uMsgInfo", CANMSGINFO),
("abData", ctypes.c_uint8 * 8)
]
PCANCYCLICTXMSG = ctypes.POINTER(CANCYCLICTXMSG)
|
