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gen-device-svd: add _Pos and _Msk fields

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Without these extra fields, it is impossible to read/write some register
bits correctly.
This commit is contained in:
Ayke van Laethem
2018-09-12 22:06:42 +02:00
parent 2788ab0172
commit 67e33ac30e
1 changed files with 12 additions and 0 deletions
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gen-device-svd.py
+12
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@@ -123,6 +123,18 @@ def parseSVDRegister(peripheralName, regEl, baseAddress, namePrefix=''):
continue
fieldName = getText(fieldEl.getElementsByTagName('name')[0])
descrEls = fieldEl.getElementsByTagName('description')
lsb = int(getText(fieldEl.getElementsByTagName('lsb')[0]))
msb = int(getText(fieldEl.getElementsByTagName('msb')[0]))
fields.append({
'name': '{}_{}{}_{}_Pos'.format(peripheralName, namePrefix, regName, fieldName),
'description': 'Position of %s field.' % fieldName,
'value': lsb,
})
fields.append({
'name': '{}_{}{}_{}_Msk'.format(peripheralName, namePrefix, regName, fieldName),
'description': 'Bit mask of %s field.' % fieldName,
'value': (0xffffffff >> (31 - (msb - lsb))) << lsb,
})
for enumEl in fieldEl.getElementsByTagName('enumeratedValue'):
enumName = getText(enumEl.getElementsByTagName('name')[0])
enumDescription = getText(enumEl.getElementsByTagName('description')[0])