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"""
Ctypes wrapper module for IXXAT Virtual CAN Interface V4 on win32 systems
Copyright (C) 2016 Giuseppe Corbelli <giuseppe.corbelli@weightpack.com>
"""
from . import structures
FALSE = 0
TRUE = 1
INFINITE = 0xFFFFFFFF
VCI_MAX_ERRSTRLEN = 256
# Bitrates
CAN_BT0_10KB = 0x31
CAN_BT1_10KB = 0x1C
CAN_BT0_20KB = 0x18
CAN_BT1_20KB = 0x1C
CAN_BT0_50KB = 0x09
CAN_BT1_50KB = 0x1C
CAN_BT0_100KB = 0x04
CAN_BT1_100KB = 0x1C
CAN_BT0_125KB = 0x03
CAN_BT1_125KB = 0x1C
CAN_BT0_250KB = 0x01
CAN_BT1_250KB = 0x1C
CAN_BT0_500KB = 0x00
CAN_BT1_500KB = 0x1C
CAN_BT0_667KB = 0x00
CAN_BT1_667KB = 0x18
CAN_BT0_800KB = 0x00
CAN_BT1_800KB = 0x16
CAN_BT0_1000KB = 0x00
CAN_BT1_1000KB = 0x14
# Facilities/severities
SEV_INFO = 0x40000000
SEV_WARN = 0x80000000
SEV_ERROR = 0xC0000000
SEV_MASK = 0xC0000000
SEV_SUCCESS = 0x00000000
RESERVED_FLAG = 0x10000000
CUSTOMER_FLAG = 0x20000000
STATUS_MASK = 0x0000FFFF
FACILITY_MASK = 0x0FFF0000
# Or so I hope
FACILITY_STD = 0
SEV_STD_INFO = SEV_INFO | CUSTOMER_FLAG | FACILITY_STD
SEV_STD_WARN = SEV_WARN | CUSTOMER_FLAG | FACILITY_STD
SEV_STD_ERROR = SEV_ERROR | CUSTOMER_FLAG | FACILITY_STD
FACILITY_VCI = 0x00010000
SEV_VCI_INFO = SEV_INFO | CUSTOMER_FLAG | FACILITY_VCI
SEV_VCI_WARN = SEV_WARN | CUSTOMER_FLAG | FACILITY_VCI
SEV_VCI_ERROR = SEV_ERROR | CUSTOMER_FLAG | FACILITY_VCI
FACILITY_DAL = 0x00020000
SEV_DAL_INFO = SEV_INFO | CUSTOMER_FLAG | FACILITY_DAL
SEV_DAL_WARN = SEV_WARN | CUSTOMER_FLAG | FACILITY_DAL
SEV_DAL_ERROR = SEV_ERROR | CUSTOMER_FLAG | FACILITY_DAL
FACILITY_CCL = 0x00030000
SEV_CCL_INFO = SEV_INFO | CUSTOMER_FLAG | FACILITY_CCL
SEV_CCL_WARN = SEV_WARN | CUSTOMER_FLAG | FACILITY_CCL
SEV_CCL_ERROR = SEV_ERROR | CUSTOMER_FLAG | FACILITY_CCL
FACILITY_BAL = 0x00040000
SEV_BAL_INFO = SEV_INFO | CUSTOMER_FLAG | FACILITY_BAL
SEV_BAL_WARN = SEV_WARN | CUSTOMER_FLAG | FACILITY_BAL
SEV_BAL_ERROR = SEV_ERROR | CUSTOMER_FLAG | FACILITY_BAL
# Errors
VCI_SUCCESS = 0x00
VCI_OK = 0x00
VCI_E_UNEXPECTED = SEV_VCI_ERROR | 0x0001
VCI_E_NOT_IMPLEMENTED = SEV_VCI_ERROR | 0x0002
VCI_E_OUTOFMEMORY = SEV_VCI_ERROR | 0x0003
VCI_E_INVALIDARG = SEV_VCI_ERROR | 0x0004
VCI_E_NOINTERFACE = SEV_VCI_ERROR | 0x0005
VCI_E_INVPOINTER = SEV_VCI_ERROR | 0x0006
VCI_E_INVHANDLE = SEV_VCI_ERROR | 0x0007
VCI_E_ABORT = SEV_VCI_ERROR | 0x0008
VCI_E_FAIL = SEV_VCI_ERROR | 0x0009
VCI_E_ACCESSDENIED = SEV_VCI_ERROR | 0x000A
VCI_E_TIMEOUT = SEV_VCI_ERROR | 0x000B
VCI_E_BUSY = SEV_VCI_ERROR | 0x000C
VCI_E_PENDING = SEV_VCI_ERROR | 0x000D
VCI_E_NO_DATA = SEV_VCI_ERROR | 0x000E
VCI_E_NO_MORE_ITEMS = SEV_VCI_ERROR | 0x000F
VCI_E_NOT_INITIALIZED = SEV_VCI_ERROR | 0x0010
VCI_E_ALREADY_INITIALIZED = SEV_VCI_ERROR | 0x00011
VCI_E_RXQUEUE_EMPTY = SEV_VCI_ERROR | 0x00012
VCI_E_TXQUEUE_FULL = SEV_VCI_ERROR | 0x0013
VCI_E_BUFFER_OVERFLOW = SEV_VCI_ERROR | 0x0014
VCI_E_INVALID_STATE = SEV_VCI_ERROR | 0x0015
VCI_E_OBJECT_ALREADY_EXISTS = SEV_VCI_ERROR | 0x0016
VCI_E_INVALID_INDEX = SEV_VCI_ERROR | 0x0017
VCI_E_END_OF_FILE = SEV_VCI_ERROR | 0x0018
VCI_E_DISCONNECTED = SEV_VCI_ERROR | 0x0019
VCI_E_WRONG_FLASHFWVERSION = SEV_VCI_ERROR | 0x001A
# Controller status
CAN_STATUS_TXPEND = 0x01 # transmission pending
CAN_STATUS_OVRRUN = 0x02 # data overrun occurred
CAN_STATUS_ERRLIM = 0x04 # error warning limit exceeded
CAN_STATUS_BUSOFF = 0x08 # bus off status
CAN_STATUS_ININIT = 0x10 # init mode active
CAN_STATUS_BUSCERR = 0x20 # bus coupling error
# Controller operating modes
CAN_OPMODE_UNDEFINED = 0x00 # undefined
CAN_OPMODE_STANDARD = 0x01 # reception of 11-bit id messages
CAN_OPMODE_EXTENDED = 0x02 # reception of 29-bit id messages
CAN_OPMODE_ERRFRAME = 0x04 # reception of error frames
CAN_OPMODE_LISTONLY = 0x08 # listen only mode (TX passive)
CAN_OPMODE_LOWSPEED = 0x10 # use low speed bus interface
CAN_OPMODE_AUTOBAUD = 0x20 # automatic bit rate detection
# Extended operating modes
CAN_EXMODE_DISABLED = 0x00
CAN_EXMODE_EXTDATALEN = 0x01
CAN_EXMODE_FASTDATA = 0x02
CAN_EXMODE_NONISOCANFD = 0x04
# Message types
CAN_MSGTYPE_DATA = 0
CAN_MSGTYPE_INFO = 1
CAN_MSGTYPE_ERROR = 2
CAN_MSGTYPE_STATUS = 3
CAN_MSGTYPE_WAKEUP = 4
CAN_MSGTYPE_TIMEOVR = 5
CAN_MSGTYPE_TIMERST = 6
# Information supplied in the abData[0] field of info frames
# (CANMSGINFO.Bytes.bType = CAN_MSGTYPE_INFO).
CAN_INFO_START = 1
CAN_INFO_STOP = 2
CAN_INFO_RESET = 3
# Information supplied in the abData[0] field of info frames
# (CANMSGINFO.Bytes.bType = CAN_MSGTYPE_ERROR).
CAN_ERROR_STUFF = 1 # stuff error
CAN_ERROR_FORM = 2 # form error
CAN_ERROR_ACK = 3 # acknowledgment error
CAN_ERROR_BIT = 4 # bit error
CAN_ERROR_CRC = 6 # CRC error
CAN_ERROR_OTHER = 7 # other (unspecified) error
# acceptance code and mask to reject all CAN IDs
CAN_ACC_MASK_NONE = 0xFFFFFFFF
CAN_ACC_CODE_NONE = 0x80000000
# BTMODEs
CAN_BTMODE_RAW = 0x00000001 # raw mode
CAN_BTMODE_TSM = 0x00000002 # triple sampling mode
CAN_FILTER_VOID = 0x00 # invalid or unknown filter mode (do not use for initialization)
CAN_FILTER_LOCK = 0x01 # lock filter (inhibit all IDs)
CAN_FILTER_PASS = 0x02 # bypass filter (pass all IDs)
CAN_FILTER_INCL = 0x03 # inclusive filtering (pass registered IDs)
CAN_FILTER_EXCL = 0x04 # exclusive filtering (inhibit registered IDs)
# message information flags (used by <CANMSGINFO.Bytes.bFlags>)
CAN_MSGFLAGS_DLC = 0x0F # [bit 0] data length code
CAN_MSGFLAGS_OVR = 0x10 # [bit 4] data overrun flag
CAN_MSGFLAGS_SRR = 0x20 # [bit 5] self reception request
CAN_MSGFLAGS_RTR = 0x40 # [bit 6] remote transmission request
CAN_MSGFLAGS_EXT = 0x80 # [bit 7] frame format (0=11-bit, 1=29-bit)
# extended message information flags (used by <CANMSGINFO.Bytes.[bFlags2|bAddFlags]>)
CAN_MSGFLAGS2_SSM = 0x01 # [bit 0] single shot mode
CAN_MSGFLAGS2_HPM = 0x02 # [bit 1] high priority message
CAN_MSGFLAGS2_EDL = 0x04 # [bit 2] extended data length
CAN_MSGFLAGS2_FDR = 0x08 # [bit 3] fast data bit rate
CAN_MSGFLAGS2_ESI = 0x10 # [bit 4] error state indicator
CAN_MSGFLAGS2_RES = 0xE0 # [bit 5..7] reserved bits
CAN_ACCEPT_REJECT = 0x00 # message not accepted
CAN_ACCEPT_ALWAYS = 0xFF # message always accepted
CAN_ACCEPT_FILTER_1 = 0x01 # message accepted by filter 1
CAN_ACCEPT_FILTER_2 = 0x02 # message accepted by filter 2
CAN_ACCEPT_PASSEXCL = 0x03 # message passes exclusion filter
CAN_FEATURE_STDOREXT = 0x00000001 # 11 OR 29 bit (exclusive)
CAN_FEATURE_STDANDEXT = 0x00000002 # 11 AND 29 bit (simultaneous)
CAN_FEATURE_RMTFRAME = 0x00000004 # reception of remote frames
CAN_FEATURE_ERRFRAME = 0x00000008 # reception of error frames
CAN_FEATURE_BUSLOAD = 0x00000010 # bus load measurement
CAN_FEATURE_IDFILTER = 0x00000020 # exact message filter
CAN_FEATURE_LISTONLY = 0x00000040 # listen only mode
CAN_FEATURE_SCHEDULER = 0x00000080 # cyclic message scheduler
CAN_FEATURE_GENERRFRM = 0x00000100 # error frame generation
CAN_FEATURE_DELAYEDTX = 0x00000200 # delayed message transmitter
CAN_FEATURE_SINGLESHOT = 0x00000400 # single shot mode
CAN_FEATURE_HIGHPRIOR = 0x00000800 # high priority message
CAN_FEATURE_AUTOBAUD = 0x00001000 # automatic bit rate detection
CAN_FEATURE_EXTDATA = 0x00002000 # extended data length (CANFD)
CAN_FEATURE_FASTDATA = 0x00004000 # fast data bit rate (CANFD)
CAN_FEATURE_ISOFRAME = 0x00008000 # ISO conform frame (CANFD)
CAN_FEATURE_NONISOFRM = (
0x00010000 # non ISO conform frame (CANFD) (different CRC computation)
)
CAN_FEATURE_64BITTSC = 0x00020000 # 64-bit time stamp counter
CAN_BITRATE_PRESETS = {
250000: structures.CANBTP(
dwMode=0, dwBPS=250000, wTS1=6400, wTS2=1600, wSJW=1600, wTDO=0
), # SP = 80,0%
500000: structures.CANBTP(
dwMode=0, dwBPS=500000, wTS1=6400, wTS2=1600, wSJW=1600, wTDO=0
), # SP = 80,0%
1000000: structures.CANBTP(
dwMode=0, dwBPS=1000000, wTS1=6400, wTS2=1600, wSJW=1600, wTDO=0
), # SP = 80,0%
}
CAN_DATABITRATE_PRESETS = {
500000: structures.CANBTP(
dwMode=0, dwBPS=500000, wTS1=6400, wTS2=1600, wSJW=1600, wTDO=6400
), # SP = 80,0%
833333: structures.CANBTP(
dwMode=0, dwBPS=833333, wTS1=1600, wTS2=400, wSJW=400, wTDO=1620
), # SP = 80,0%
1000000: structures.CANBTP(
dwMode=0, dwBPS=1000000, wTS1=1600, wTS2=400, wSJW=400, wTDO=1600
), # SP = 80,0%
1538461: structures.CANBTP(
dwMode=0, dwBPS=1538461, wTS1=1000, wTS2=300, wSJW=300, wTDO=1040
), # SP = 76,9%
2000000: structures.CANBTP(
dwMode=0, dwBPS=2000000, wTS1=1600, wTS2=400, wSJW=400, wTDO=1600
), # SP = 80,0%
4000000: structures.CANBTP(
dwMode=0, dwBPS=4000000, wTS1=800, wTS2=200, wSJW=200, wTDO=800
), # SP = 80,0%
5000000: structures.CANBTP(
dwMode=0, dwBPS=5000000, wTS1=600, wTS2=200, wSJW=200, wTDO=600
), # SP = 75,0%
6666666: structures.CANBTP(
dwMode=0, dwBPS=6666666, wTS1=400, wTS2=200, wSJW=200, wTDO=402
), # SP = 66,7%
8000000: structures.CANBTP(
dwMode=0, dwBPS=8000000, wTS1=400, wTS2=100, wSJW=100, wTDO=250
), # SP = 80,0%
10000000: structures.CANBTP(
dwMode=0, dwBPS=10000000, wTS1=300, wTS2=100, wSJW=100, wTDO=200
), # SP = 75,0%
}
|
