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ecu.py
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ecu.py
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#!/usr/bin/python3
# -*- coding: utf-8 -*-
import argparse
import glob
import math
import os
import re
import string
import xml.dom.minidom
import zipfile
from io import BytesIO
import elm
import json
import options
_ = options.translator('ddt4all')
addressing = {}
# //TODO addressing missing entries
addressing_entries = {"E7": u"SCRCM", "E8": u"SVS"}
# Returns signed value from 16 bits (2 bytes)
def hex16_tosigned(value):
return -(value & 0x8000) | (value & 0x7fff)
# Returns signed value from 8 bits (1 byte)
def hex8_tosigned(value):
return -(value & 0x80) | (value & 0x7f)
def cleanhtml(raw_html):
cleanr = re.compile('<.*?>')
cleantext = re.sub(cleanr, '', raw_html)
return cleantext
def getChildNodesByName(parent, name):
nodes = []
for node in parent.childNodes:
if node.nodeType == node.ELEMENT_NODE and node.localName == name:
nodes.append(node)
return nodes
class Data_item:
def __init__(self, item, req_endian, name=''):
self.firstbyte = 0
self.bitoffset = 0
self.ref = False
self.endian = ''
self.req_endian = req_endian
if isinstance(item, dict):
self.name = name
if 'firstbyte' in item:
self.firstbyte = item['firstbyte']
if 'bitoffset' in item:
self.bitoffset = item['bitoffset']
if 'ref' in item:
self.ref = item['ref']
if 'endian' in item:
self.endian = item['endian']
else:
self.name = item.getAttribute("Name")
fb = item.getAttribute("FirstByte")
if fb:
self.firstbyte = int(fb)
bo = item.getAttribute("BitOffset")
if bo:
self.bitoffset = int(bo)
endian = item.getAttribute("Endian")
if endian:
self.endian = endian
ref = item.getAttribute("Ref")
if ref and ref == '1':
self.ref = True
def dump(self):
js = {}
if self.firstbyte != 0:
js['firstbyte'] = self.firstbyte
if self.bitoffset != 0:
js['bitoffset'] = self.bitoffset
if self.ref != False:
js['ref'] = self.ref
if self.endian != '':
js['endian'] = self.endian
return js
class Ecu_device:
def __init__(self, dev):
self.dtc = 0
self.dtctype = 0
self.devicedata = {}
self.name = ''
if isinstance(dev, dict):
# Json data
self.name = dev['name']
self.dtctype = dev['dtctype']
self.devicedata = dev['devicedata']
self.dtc = dev['dtc']
else:
self.name = dev.getAttribute("Name")
dtc = dev.getAttribute("DTC")
if dtc: self.dtc = int(dtc)
dtctype = dev.getAttribute("Type")
if dtctype: self.dtctype = int(dtctype)
devicedata = dev.getElementsByTagName("DeviceData")
if devicedata:
for data in devicedata:
name = data.getAttribute("Name")
failureflag = data.getAttribute("FailureFlag")
self.devicedata[name] = failureflag
def dump(self):
js = {}
js['dtc'] = self.dtc
js['dtctype'] = self.dtctype
js['devicedata'] = self.devicedata
js['name'] = self.name
return js
class Ecu_request:
def __init__(self, data, ecu_file):
self.minbytes = 0
self.shiftbytescount = 0
self.replybytes = ''
self.manualsend = False
self.sentbytes = ''
self.dataitems = {}
self.sendbyte_dataitems = {}
self.name = ''
self.ecu_file = ecu_file
# StartDiagSession requirements
# Seems relatively useless...
self.sds = {'nosds': True,
'plant': True,
'aftersales': True,
'engineering': True,
'supplier': True}
if isinstance(data, dict):
if 'minbytes' in data: self.minbytes = data['minbytes']
if 'shiftbytescount' in data: self.shiftbytescount = data['shiftbytescount']
if 'replybytes' in data: self.replybytes = data['replybytes']
if 'manualsend' in data: self.manualsend = data['manualsend']
if 'sentbytes' in data: self.sentbytes = data['sentbytes']
self.name = data['name']
if 'deny_sds' in data:
if 'nosds' in data['deny_sds']:
self.sds['nosds'] = False
if 'plant' in data['deny_sds']:
self.sds['plant'] = False
if 'aftersales' in data['deny_sds']:
self.sds['aftersales'] = False
if 'engineering' in data['deny_sds']:
self.sds['engineering'] = False
if 'supplier' in data['deny_sds']:
self.sds['supplier'] = False
if 'sendbyte_dataitems' in data:
sbdi = data['sendbyte_dataitems']
for k, v in sbdi.items():
di = Data_item(v, self.ecu_file.endianness, k)
self.sendbyte_dataitems[k] = di
if 'receivebyte_dataitems' in data:
rbdi = data['receivebyte_dataitems']
for k, v in rbdi.items():
di = Data_item(v, self.ecu_file.endianness, k)
self.dataitems[k] = di
elif isinstance(data, str):
# Create a blank, new one
self.name = data
else:
self.xmldoc = data
self.name = self.xmldoc.getAttribute("Name")
accessdata = self.xmldoc.getElementsByTagName("DenyAccess").item(0)
if accessdata:
for accessdatachild in accessdata.childNodes:
if accessdatachild.nodeName == "NoSDS":
self.sds['nosds'] = False
elif accessdatachild.nodeName == "Plant":
self.sds['plant'] = False
elif accessdatachild.nodeName == "AfterSales":
self.sds['aftersales'] = False
elif accessdatachild.nodeName == "Engineering":
self.sds['engineering'] = False
elif accessdatachild.nodeName == "Supplier":
self.sds['supplier'] = False
manualsenddata = self.xmldoc.getElementsByTagName("ManuelSend").item(0)
if manualsenddata:
self.manualsend = True
shiftbytescount = self.xmldoc.getElementsByTagName("ShiftBytesCount")
if shiftbytescount:
self.shiftbytescount = int(shiftbytescount.item(0).firstChild.nodeValue)
replybytes = self.xmldoc.getElementsByTagName("ReplyBytes")
if replybytes:
self.replybytes = replybytes.item(0).firstChild.nodeValue
receiveddata = self.xmldoc.getElementsByTagName("Received").item(0)
if receiveddata:
minbytes = receiveddata.getAttribute("MinBytes")
if minbytes:
self.minbytes = int(minbytes)
dataitems = receiveddata.getElementsByTagName("DataItem")
if dataitems:
for dataitem in dataitems:
di = Data_item(dataitem, self.ecu_file.endianness)
self.dataitems[di.name] = di
sentdata = self.xmldoc.getElementsByTagName("Sent")
if sentdata:
sent = sentdata.item(0)
sentbytesdata = sent.getElementsByTagName("SentBytes")
if sentbytesdata:
if sentbytesdata.item(0).firstChild:
self.sentbytes = sentbytesdata.item(0).firstChild.nodeValue
dataitems = sent.getElementsByTagName("DataItem")
if dataitems:
for dataitem in dataitems:
di = Data_item(dataitem, self.ecu_file.endianness)
self.sendbyte_dataitems[di.name] = di
def send_request(self, inputvalues=None, test_data=None):
if inputvalues is None:
inputvalues = {}
request_stream = self.build_data_stream(inputvalues)
request_stream = " ".join(request_stream)
if options.debug:
print(_("Generated stream "), request_stream)
if options.simulation_mode:
if test_data is not None:
elmstream = test_data
print(_("Send request stream "), request_stream)
else:
# return default reply bytes...
elmstream = self.replybytes
else:
elmstream = options.elm.request(request_stream)
if options.debug:
print(_("Received stream "), elmstream)
if elmstream.startswith('WRONG RESPONSE'):
return None
if elmstream.startswith('7F'):
nrsp = options.elm.errorval(elmstream[6:8])
print(_("Request ECU Error"), nrsp)
return None
values = self.get_values_from_stream(elmstream)
if options.debug:
print(_("Decoded values"), values)
return values
def get_data_inputs(self):
return self.sendbyte_dataitems.keys()
def build_data_stream(self, data):
data_stream = self.get_formatted_sentbytes()
for k, v in data.items():
if k in self.sendbyte_dataitems:
datatitem = self.sendbyte_dataitems[k]
else:
raise KeyError('Ecurequest::build_data_stream : Data item %s does not exist' % k)
if k in self.ecu_file.data:
data = self.ecu_file.data[k]
else:
raise KeyError('Ecurequest::build_data_stream : Data %s does not exist' % k)
if v in data.items:
v = hex(data.items[v])[2:].upper()
data.setValue(v, data_stream, datatitem, self.ecu_file.endianness)
return data_stream
def get_values_from_stream(self, stream):
values = {}
for k, v in self.dataitems.items():
if k in self.ecu_file.data:
data = self.ecu_file.data[k]
values[k] = data.getDisplayValue(stream, v, self.ecu_file.endianness)
else:
raise KeyError('Ecurequest::get_values_from_stream : Data %s does not exist' % k)
return values
def get_formatted_sentbytes(self):
bytes_to_send_ascii = self.sentbytes
return [str(bytes_to_send_ascii[i:i + 2]) for i in range(0, len(bytes_to_send_ascii), 2)]
def dump(self):
js = {}
if self.minbytes != 0:
js['minbytes'] = self.minbytes
if self.shiftbytescount != 0:
js['shiftbytescount'] = self.shiftbytescount
if self.replybytes != '':
js['replybytes'] = self.replybytes
if self.manualsend:
js['manualsend'] = self.manualsend
if self.sentbytes != '':
js['sentbytes'] = self.sentbytes
js['name'] = self.name
js['deny_sds'] = []
if self.sds['nosds'] is False:
js['deny_sds'].append('nosds')
if self.sds['plant'] is False:
js['deny_sds'].append('plant')
if self.sds['aftersales'] is False:
js['deny_sds'].append('aftersales')
if self.sds['engineering'] is False:
js['deny_sds'].append('engineering')
if self.sds['supplier'] is False:
js['deny_sds'].append('supplier')
sdi = {}
for key, value in self.sendbyte_dataitems.items():
sdi[key] = value.dump()
if len(sdi):
js['sendbyte_dataitems'] = sdi
rdi = {}
for key, value in self.dataitems.items():
rdi[key] = value.dump()
if len(rdi):
js['receivebyte_dataitems'] = rdi
return js
def dump_dataitems(self):
di = {}
for key, value in self.dataitems.items():
di[key] = value.dump()
return di
def dump_sentdataitems(self):
di = {}
for key, value in self.sendbyte_dataitems.items():
di[key] = value.dump()
return di
class Ecu_data:
def __init__(self, data, name=''):
self.bitscount = 8
self.scaled = False
self.signed = False
self.byte = False
self.binary = False
self.bytescount = 1
self.bytesascii = False
self.step = 1.0
self.offset = 0.0
self.divideby = 1.0
self.format = ""
self.lists = {}
self.items = {}
self.description = ''
self.unit = ""
self.comment = ''
self.name = name
if data:
self.init(data)
def init(self, data):
if isinstance(data, dict):
if 'bitscount' in data:
self.bitscount = data['bitscount']
if 'bytesascii' in data:
self.bytesascii = data['bytesascii']
if 'scaled' in data:
self.scaled = data['scaled']
if 'signed' in data:
self.signed = data['signed']
if 'byte' in data:
self.byte = data['byte']
if 'binary' in data:
self.binary = data['binary']
if 'step' in data:
self.step = data['step']
if 'offset' in data:
self.offset = data['offset']
if 'divideby' in data:
self.divideby = data['divideby']
if 'format' in data:
self.format = data['format']
if 'bytescount' in data:
self.bytescount = data['bytescount']
if 'unit' in data:
self.unit = data['unit']
if 'comment' in data:
self.comment = data['comment']
if 'lists' in data:
for k, v in data['lists'].items():
self.lists[int(k)] = v
self.items[v] = int(k)
else:
self.xmldoc = data
self.name = self.xmldoc.getAttribute("Name")
description = self.xmldoc.getElementsByTagName("Description")
if description:
self.description = description.item(0).firstChild.nodeValue.replace('<![CDATA[', '').replace(']]>', '')
comment = self.xmldoc.getElementsByTagName("Comment")
if comment:
self.comment = comment.item(0).firstChild.nodeValue.replace('<![CDATA[', '').replace(']]>', '')
lst = self.xmldoc.getElementsByTagName("List")
if lst:
for l in lst:
items = l.getElementsByTagName("Item")
for item in items:
key = int(item.getAttribute('Value'))
val = item.getAttribute('Text')
self.lists[int(key)] = val
self.items[val] = int(key)
bytes = self.xmldoc.getElementsByTagName("Bytes")
if bytes:
self.byte = True
bytescount = bytes.item(0).getAttribute("count").replace(',', '.')
if '.' in bytescount:
self.bytescount = math.ceil(float(bytescount))
self.bitscount = int(float(bytescount) * 8)
elif bytescount:
self.bytescount = int(bytescount)
self.bitscount = self.bytescount * 8
bytesascii = bytes.item(0).getAttribute("ascii")
if bytesascii and bytesascii == '1': self.bytesascii = True
bits = self.xmldoc.getElementsByTagName("Bits")
if bits:
bitscount = bits.item(0).getAttribute("count")
if bitscount:
self.bitscount = int(bitscount)
self.bytescount = int(math.ceil(float(bitscount) / 8.0))
signed = bits.item(0).getAttribute("signed")
if signed:
self.signed = True
binary = bits.item(0).getElementsByTagName("Binary")
if binary:
self.binary = True
scaled_value = bits.item(0).getElementsByTagName("Scaled")
if scaled_value:
self.scaled = True
sc = scaled_value.item(0)
step = sc.getAttribute("Step")
if step:
self.step = float(step)
offset = sc.getAttribute("Offset")
if offset:
self.offset = float(offset)
divideby = sc.getAttribute("DivideBy")
if divideby:
self.divideby = float(divideby)
format = sc.getAttribute("Format")
if format:
self.format = format
unit = sc.getAttribute("Unit")
if unit:
self.unit = unit
def dump(self):
js = {}
if self.bitscount != 8:
js['bitscount'] = self.bitscount
if self.scaled != False:
js['scaled'] = self.scaled
if self.signed != False:
js['signed'] = self.signed
if self.byte != False:
js['byte'] = self.byte
if self.binary != False:
js['binary'] = self.binary
if self.bytescount != 1:
js['bytescount'] = self.bytescount
if self.bytesascii != False:
js['bytesascii'] = self.bytesascii
if self.step != 1:
js['step'] = self.step
if self.offset != 0:
js['offset'] = self.offset
if self.divideby != 1:
js['divideby'] = self.divideby
if self.format != '':
js['format'] = self.format
if len(self.lists) > 0:
lst = {}
for k, v in self.lists.items():
lst[int(k)] = v
js['lists'] = lst
if self.unit != '':
js['unit'] = self.unit
if self.comment != '':
js['comment'] = cleanhtml(self.comment)
return self.name, js
def setValue(self, value, bytes_list, dataitem, ecu_endian, test_mode=False):
start_byte = dataitem.firstbyte - 1
start_bit = dataitem.bitoffset
little_endian = False
if ecu_endian == "Little":
little_endian = True
# It seems that DataItem can override Request endianness
if dataitem.endian == "Little":
little_endian = True
if dataitem.endian == "Big":
little_endian = False
if self.bytesascii:
value = str(value)
if self.bytescount > len(value):
value = value.ljust(self.bytescount)
if self.bytescount < len(value):
value = value[0:self.bytescount]
asciival = ""
for i in range(self.bytescount):
if not test_mode:
asciival += hex(ord(value[i]))[2:].upper()
else:
asciival += "FF"
value = asciival
if self.scaled:
if not test_mode:
try:
value = float(value)
except:
return None
# Input value must be base 10
value = int((value * float(self.divideby) - float(self.offset)) / float(self.step))
else:
value = int("0x" + value, 16)
else:
if not test_mode:
# Check input length and validity
if not all(c in string.hexdigits for c in value):
return None
# Value is base 16
value = int('0x' + str(value), 16)
else:
value = int("0x" + value, 16)
valueasbin = bin(value)[2:].zfill(self.bitscount)
numreqbytes = int(math.ceil(float(self.bitscount + start_bit) / 8.))
request_bytes = bytes_list[start_byte:start_byte + numreqbytes]
requestasbin = ""
for r in request_bytes:
requestasbin += bin(int(r, 16))[2:].zfill(8)
requestasbin = list(requestasbin)
if little_endian:
# Little endian coding is really weird :/
# Cannot figure out why it's being used
# But tried to do my best to mimic the read/write process
# Actually, need to do it in 3 steps
remainingbits = self.bitscount
# Step 1
lastbit = 7 - start_bit + 1
firstbit = lastbit - self.bitscount
if firstbit < 0:
firstbit = 0
count = 0
for i in range(firstbit, lastbit):
requestasbin[i] = valueasbin[count]
count += 1
remainingbits -= count
# Step 2
currentbyte = 1
while remainingbits >= 8:
for i in range(0, 8):
requestasbin[currentbyte * 8 + i] = valueasbin[count]
count += 1
remainingbits -= 8
currentbyte += 1
# Step 3
if remainingbits > 0:
lastbit = 8
firstbit = lastbit - remainingbits
for i in range(firstbit, lastbit):
requestasbin[currentbyte * 8 + i] = valueasbin[count]
count += 1
else:
for i in range(self.bitscount):
requestasbin[i + start_bit] = valueasbin[i]
requestasbin = "".join(requestasbin)
valueasint = int("0b" + requestasbin, 2)
valueashex = hex(valueasint)[2:].replace("L", "").zfill(numreqbytes * 2).upper()
for i in range(numreqbytes):
bytes_list[i + start_byte] = valueashex[i * 2:i * 2 + 2].zfill(2)
return bytes_list
def getDisplayValue(self, elm_data, dataitem, ecu_endian):
value = self.getHexValue(elm_data, dataitem, ecu_endian)
if value is None:
return None
if self.bytesascii:
return bytes.fromhex(value).decode('utf-8', errors="ignore")
# I think we want Hex format for non scaled values
if not self.scaled:
val = int('0x' + value, 16)
# Manage signed values
if self.signed:
if self.bytescount == 1:
val = hex8_tosigned(val)
elif self.bytescount == 2:
val = hex16_tosigned(val)
else:
print(_("Warning, cannot get signed value for") + " %s" % dataitem.name)
# Manage mapped values if exists
if val in self.lists:
return self.lists[val]
# Return default hex value
return value
value = int('0x' + value, 16)
# Manage signed values
if self.signed:
if self.bytescount == 1:
value = hex8_tosigned(value)
elif self.bytescount == 2:
value = hex16_tosigned(value)
if self.divideby == 0:
print(_("Division by zero, please check data item: "), dataitem.name)
return None
res = (float(value) * float(self.step) + float(self.offset)) / float(self.divideby)
if len(self.format) and '.' in self.format:
acc = len(self.format.split('.')[1])
fmt = '%.' + str(acc) + 'f'
res = fmt % res
else:
if int(res) == res:
return str(int(res))
return str(res)
def getIntValue(self, resp, dataitem, ecu_endian):
val = self.getHexValue(resp, dataitem, ecu_endian)
if val is None:
return None
return int("0x" + val, 16)
def getHexValue(self, resp, dataitem, ecu_endian):
little_endian = False
if ecu_endian == "Little":
little_endian = True
if dataitem.endian == "Little":
little_endian = True
if dataitem.endian == "Big":
little_endian = False
# Data cleaning
resp = resp.strip().replace(' ', '')
if not all(c in string.hexdigits for c in resp): resp = ''
resp.replace(' ', '')
res_bytes = [resp[i:i + 2] for i in range(0, len(resp), 2)]
# Data count
startByte = dataitem.firstbyte
startBit = dataitem.bitoffset
bits = self.bitscount
databytelen = int(math.ceil(float(self.bitscount) / 8.0))
reqdatabytelen = int(math.ceil(float(self.bitscount + startBit) / 8.0))
sb = startByte - 1
if (sb * 2 + databytelen * 2) > (len(resp)):
return None
hexval = resp[sb * 2:(sb + reqdatabytelen) * 2]
hextobin = ""
for b in res_bytes[sb:sb + reqdatabytelen]:
hextobin += bin(int(b, 16))[2:].zfill(8)
if len(hexval) == 0:
return None
if little_endian:
# Don't like this method
totalremainingbits = bits
lastbit = 7 - startBit + 1
firstbit = lastbit - bits
if firstbit < 0:
firstbit = 0
tmp_bin = hextobin[firstbit:lastbit]
totalremainingbits -= lastbit - firstbit
if totalremainingbits > 8:
offset1 = 8
offset2 = offset1 + ((reqdatabytelen - 2) * 8)
tmp_bin += hextobin[offset1:offset2]
totalremainingbits -= offset2 - offset1
if totalremainingbits > 0:
offset1 = (reqdatabytelen - 1) * 8
offset2 = offset1 - totalremainingbits
tmp_bin += hextobin[offset2:offset1]
totalremainingbits -= offset1 - offset2
if totalremainingbits != 0:
print(_("getHexValue >> abnormal remaining bytes "), bits, totalremainingbits)
hexval = hex(int("0b" + tmp_bin, 2))[2:].replace("L", "")
else:
valtmp = "0b" + hextobin[startBit:startBit + bits]
hexval = hex(int(valtmp, 2))[2:].replace("L", "")
# Resize to original length
hexval = hexval.zfill(databytelen * 2)
return hexval
class Ecu_file:
def __init__(self, data, isfile=False):
self.requests = {}
self.devices = {}
self.data = {}
self.endianness = ''
self.ecu_protocol = ''
self.ecu_send_id = "00"
self.ecu_recv_id = "00"
self.fastinit = False
self.kw1 = ""
self.kw2 = ""
self.funcname = ""
self.funcaddr = "00"
self.ecuname = ""
self.projects = []
self.autoidents = []
self.baudrate = 0
if not data:
return
if isfile:
if not os.path.exists(data):
if os.path.exists("./ecus/" + data + ".xml"):
data = "./ecus/" + data + ".xml"
if isfile and ".xml" not in data[-4:] and ".json" not in data[-5:]:
xmlname = data + ".xml"
if os.path.exists(xmlname):
data = xmlname
else:
data += ".json"
if isfile and '.json' in data:
data2 = "./json/" + os.path.basename(data)
jsdata = None
if os.path.exists(data):
jsfile = open(data, "r")
jsdata = jsfile.read()
jsfile.close()
elif os.path.exists(data2):
jsfile = open(data2, "r")
jsdata = jsfile.read()
jsfile.close()
else:
# Zipped json here
if os.path.exists('ecu.zip'):
zf = zipfile.ZipFile('ecu.zip', mode='r')
if data in zf.namelist():
jsdata = zf.read(data)
elif os.path.basename(data) in zf.namelist():
jsdata = zf.read(os.path.basename(data))
else:
print(_("Cannot find file "), data)
return
if jsdata is None:
return
ecudict = json.loads(jsdata)
if "obd" in ecudict:
self.ecu_protocol = ecudict['obd']['protocol']
if self.ecu_protocol == "CAN":
self.ecu_send_id = ecudict['obd']['send_id']
self.ecu_recv_id = ecudict['obd']['recv_id']
if 'baudrate' in ecudict['obd']:
self.baudrate = int(ecudict['obd']['baudrate'])
if self.ecu_protocol == "KWP2000":
self.fastinit = ecudict['obd']['fastinit']
self.funcaddr = ecudict['obd']['funcaddr']
if 'funcname' in ecudict['obd']:
self.funcname = ecudict['obd']['funcname']
if "kw1" in ecudict['obd']:
self.kw1 = ecudict['obd']['kw1']
self.kw2 = ecudict['obd']['kw2']
if 'endian' in ecudict:
self.endianness = ecudict['endian']
if 'ecuname' in ecudict:
self.ecuname = ecudict['ecuname']
devices = ecudict['devices']
for device in devices:
ecu_dev = Ecu_device(device)
self.devices[ecu_dev.name] = ecu_dev
requests = ecudict['requests']
for request in requests:
ecu_req = Ecu_request(request, self)
self.requests[ecu_req.name] = ecu_req
datalist = ecudict['data']
for k, v in datalist.items():
self.data[k] = Ecu_data(v, k)
else:
if isfile:
if not os.path.exists(data):
print(_("Cannot load ECU file"), data)
return
xdom = xml.dom.minidom.parse(data)
self.xmldoc = xdom.documentElement
if not self.xmldoc:
print(_("XML not found"))
return
target = getChildNodesByName(self.xmldoc, u"Target")
if target:
self.ecuname = target[0].getAttribute("Name")
autoidents = getChildNodesByName(target[0], u"AutoIdents")
if autoidents:
autoident = getChildNodesByName(autoidents[0], u"AutoIdent")
for ai in autoident:
autoident_dict = {}
autoident_dict['diagversion'] = ai.getAttribute("DiagVersion")
autoident_dict['supplier'] = ai.getAttribute("Supplier")
autoident_dict['soft'] = ai.getAttribute("Soft")
autoident_dict['version'] = ai.getAttribute("Version")
self.autoidents.append(autoident_dict)
projects = getChildNodesByName(target[0], u"Projects")
if projects:
for project in projects[0].childNodes:
self.projects.append(project.nodeName)
functions = getChildNodesByName(target[0], u"Function")
if functions:
self.funcaddr = hex(int(functions[0].getAttribute("Address")))[2:].upper().zfill(2)
self.funcname = functions[0].getAttribute("Name")
can = getChildNodesByName(target[0], u"CAN")
if can:
self.ecu_protocol = "CAN"
self.baudrate = int(can[0].getAttribute("BaudRate"))
send_ids = getChildNodesByName(can[0], "SendId")
if send_ids:
send_id = send_ids[0]
can_id = getChildNodesByName(send_id, "CANId")
if can_id:
self.ecu_send_id = hex(int(can_id[0].getAttribute("Value")))[2:].upper()
rcv_ids = getChildNodesByName(can[0], "ReceiveId")
if rcv_ids:
rcv_id = rcv_ids[0]
can_id = getChildNodesByName(rcv_id, "CANId")
if can_id:
self.ecu_recv_id = hex(int(can_id[0].getAttribute("Value")))[2:].upper()
k = getChildNodesByName(target[0], u"K")
if k:
kwp = getChildNodesByName(k[0], u"KWP")
iso8 = getChildNodesByName(k[0], u"ISO8")
if kwp:
kwp = kwp[0]
self.ecu_protocol = u"KWP2000"
fastinit = getChildNodesByName(kwp, u"FastInit")
if fastinit:
self.fastinit = True
KW1 = getChildNodesByName(fastinit[0], "KW1")
KW2 = getChildNodesByName(fastinit[0], "KW2")
else:
iso8 = getChildNodesByName(kwp, u"ISO8")
KW1 = getChildNodesByName(iso8[0], "KW1")
KW2 = getChildNodesByName(iso8[0], "KW2")
self.kw1 = hex(int(KW1[0].getAttribute("Value")))[2:].upper()
self.kw2 = hex(int(KW2[0].getAttribute("Value")))[2:].upper()
elif iso8:
self.fastinit = False
self.ecu_protocol = "ISO8"
self.kw1 = hex(
int(getChildNodesByName(iso8[0], "KW1")[0].getAttribute("Value")))[2:].upper()
self.kw2 = hex(
int(getChildNodesByName(iso8[0], "KW2")[0].getAttribute("Value")))[2:].upper()
devices = self.xmldoc.getElementsByTagName("Device")
for d in devices:
ecu_dev = Ecu_device(d)
self.devices[ecu_dev.name] = ecu_dev
requests_tag = self.xmldoc.getElementsByTagName("Requests")
if requests_tag:
for request_tag in requests_tag:
endian = ''
endian_attr = request_tag.getAttribute("Endian")
if endian_attr:
self.endianness = endian_attr
requests = request_tag.getElementsByTagName("Request")
for f in requests:
ecu_req = Ecu_request(f, self)
self.requests[ecu_req.name] = ecu_req
data = self.xmldoc.getElementsByTagName("Data")
for f in data:
ecu_data = Ecu_data(f)
self.data[ecu_data.name] = ecu_data
def get_request(self, name):
if name in self.requests:
return self.requests[name]
for k, v in self.requests.items():
if k.lower() == name.lower():