1

#!/usr/bin/python

     2

     3

#-----------------------------------------------------------------------------

     4

#

     5

# $Id$

     6

#

     7

# Convert a slave information file to a slave description Xml.

     8

#

     9

#-----------------------------------------------------------------------------

    10

    11

from xml.dom.minidom import Document

    12

import sys

    13

import re

    14

import os

    15

import getopt

    16

    17

#-----------------------------------------------------------------------------

    18

    19

infoFileName = 'info'

    20

    21

#-----------------------------------------------------------------------------

    22

    23

class PdoEntry:

    24

    def __init__(self, index, subindex, name, bitlength):

    25

        self.index = index

    26

        self.subindex = subindex

    27

        self.name = name

    28

        self.bitlength = bitlength

    29

    30

    def toXml(self, doc, element):

    31

        entryElement = doc.createElement('Entry')

    32

    33

        indexElement = doc.createElement('Index')

    34

        indexText = doc.createTextNode('#x%04x' % self.index)

    35

        indexElement.appendChild(indexText)

    36

        entryElement.appendChild(indexElement)

    37

    38

        if (self.index != 0):

    39

            subIndexElement = doc.createElement('SubIndex')

    40

            subIndexText = doc.createTextNode(str(self.subindex))

    41

            subIndexElement.appendChild(subIndexText)

    42

            entryElement.appendChild(subIndexElement)

    43

    44

        lengthElement = doc.createElement('BitLen')

    45

        lengthText = doc.createTextNode(str(self.bitlength))

    46

        lengthElement.appendChild(lengthText)

    47

        entryElement.appendChild(lengthElement)

    48

    49

        if (self.index != 0):

    50

            nameElement = doc.createElement('Name')

    51

            nameText = doc.createTextNode(self.name)

    52

            nameElement.appendChild(nameText)

    53

            entryElement.appendChild(nameElement)

    54

    55

            dataTypeElement = doc.createElement('DataType')

    56

            dataTypeText = doc.createTextNode(self.dataType())

    57

            dataTypeElement.appendChild(dataTypeText)

    58

            entryElement.appendChild(dataTypeElement)

    59

    60

        element.appendChild(entryElement)

    61

    62

    def dataType(self):

    63

        if self.bitlength == 1:

    64

            return 'BOOL'

    65

        elif self.bitlength % 8 == 0:

    66

            if self.bitlength <= 64:

    67

                return 'UINT%u' % self.bitlength

    68

            else:

    69

                return 'STRING(%u)' % (self.bitlength / 8)

    70

        else:

    71

            assert False, 'Invalid bit length %u' % self.bitlength 

    72

    73

#-----------------------------------------------------------------------------

    74

    75

class Pdo:

    76

    def __init__(self, dir, index):

    77

        self.dir = dir

    78

        self.index = index

    79

        self.entries = []

    80

    81

    def appendEntry(self, entry):

    82

        self.entries.append(entry)

    83

    84

    def toXml(self, doc, element):

    85

        pdoElement = doc.createElement('%sxPdo' % self.dir)

    86

    87

        indexElement = doc.createElement('Index')

    88

        indexText = doc.createTextNode('#x%04x' % self.index)

    89

        indexElement.appendChild(indexText)

    90

        pdoElement.appendChild(indexElement)

    91

    92

        nameElement = doc.createElement('Name')

    93

        pdoElement.appendChild(nameElement)

    94

    95

        for e in self.entries:

    96

            e.toXml(doc, pdoElement)

    97

    98

        element.appendChild(pdoElement)

    99

   100

#-----------------------------------------------------------------------------

   101

   102

class Device:

   103

    def __init__(self):

   104

        self.vendor = 0

   105

        self.product = 0

   106

        self.revision = 0

   107

        self.pdos = []

   108

   109

    def parseInfoFile(self, fileName):

   110

        reVendor = re.compile('Vendor ID:.*\((\d+)\)')

   111

        reProduct = re.compile('Product code:.*\((\d+)\)')

   112

        reRevision = re.compile('Revision number:.*\((\d+)\)')

   113

        rePdo = re.compile('([RT])xPdo\s+0x([0-9A-F]+)')

   114

        rePdoEntry = \

   115

            re.compile('0x([0-9A-F]+):([0-9A-F]+),\s+(\d+) bit,\s+"([^"]*)"')

   116

        pdo = None

   117

        f = open(fileName, 'r')

   118

        while True:

   119

            line = f.readline()

   120

            if not line: break

   121

   122

            match = reVendor.search(line)

   123

            if match:

   124

                self.vendor = int(match.group(1))

   125

   126

            match = reProduct.search(line)

   127

            if match:

   128

                self.product = int(match.group(1))

   129

   130

            match = reRevision.search(line)

   131

            if match:

   132

                self.revision = int(match.group(1))

   133

   134

            match = rePdo.search(line)

   135

            if match:

   136

                pdo = Pdo(match.group(1), int(match.group(2), 16))

   137

                self.pdos.append(pdo)

   138

   139

            match = rePdoEntry.search(line)

   140

            if match:

   141

                pdoEntry = PdoEntry(int(match.group(1), 16), \

   142

                    int(match.group(2), 16), match.group(4), \

   143

                    int(match.group(3)))

   144

                pdo.appendEntry(pdoEntry)

   145

   146

        f.close()

   147

   148

    def toXmlDocument(self):

   149

        doc = Document()

   150

   151

        rootElement = doc.createElement('EtherCATInfo')

   152

        doc.appendChild(rootElement)

   153

   154

        vendorElement = doc.createElement('Vendor')

   155

        rootElement.appendChild(vendorElement)

   156

   157

        vendorIdElement = doc.createElement('Id')

   158

   159

        idText = doc.createTextNode(str(self.vendor))

   160

        vendorIdElement.appendChild(idText)

   161

   162

        vendorElement.appendChild(vendorIdElement)

   163

   164

        descriptionsElement = doc.createElement('Descriptions')

   165

        rootElement.appendChild(descriptionsElement)

   166

   167

        devicesElement = doc.createElement('Devices')

   168

        descriptionsElement.appendChild(devicesElement)

   169

   170

        deviceElement = doc.createElement('Device')

   171

        devicesElement.appendChild(deviceElement)

   172

   173

        typeElement = doc.createElement('Type')

   174

        typeElement.setAttribute('ProductCode', '#x%08x' % self.product)

   175

        typeElement.setAttribute('RevisionNo', '#x%08x' % self.revision)

   176

        deviceElement.appendChild(typeElement)

   177

   178

        for p in self.pdos:

   179

            p.toXml(doc, deviceElement)

   180

   181

        return doc

   182

   183

#-----------------------------------------------------------------------------

   184

   185

def usage():

   186

    print """slaveinfo2xml.py [OPTIONS] [FILE]

   187

    File defaults to 'info'.

   188

    Options:

   189

        -h Print this help."""

   190

   191

#-----------------------------------------------------------------------------

   192

   193

try:

   194

    opts, args = getopt.getopt(sys.argv[1:], "h", ["help"])

   195

except getopt.GetoptError, err:

   196

    print str(err)

   197

    usage()

   198

    sys.exit(2)

   199

   200

if len(args) > 1:

   201

    print "Only one argument allowed!"

   202

    usage()

   203

    sys.exit(2)

   204

elif len(args) == 1:

   205

    infoFileName = args[0]

   206

   207

for o, a in opts:

   208

    if o in ("-h", "--help"):

   209

        usage()

   210

        sys.exit()

   211

    else:

   212

        assert False, "unhandled option"

   213

   214

d = Device()

   215

d.parseInfoFile(infoFileName)

   216

doc = d.toXmlDocument()

   217

   218

# Print our newly created XML

   219

print doc.toprettyxml(indent='  ')

   220

   221

#-----------------------------------------------------------------------------

   222