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gen-device-svd: ensure enum bitfields are unique

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This commit is contained in:
ardnew
2020-09-22 14:55:37 -05:00
committed by Ron Evans
parent d8dbe5748a
commit 184175378f
1 changed files with 12 additions and 1 deletions
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tools/gen-device-svd/gen-device-svd.go
+12 -1
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@@ -470,6 +470,7 @@ func addInterrupt(interrupts map[string]*interrupt, name, interruptName string,
func parseBitfields(groupName, regName string, fieldEls []*SVDField, bitfieldPrefix string) []Bitfield {
var fields []Bitfield
enumSeen := map[string]bool{}
for _, fieldEl := range fieldEls {
// Some bitfields (like the STM32H7x7) contain invalid bitfield
// names like "CNT[31]". Replace invalid characters with "_" when
@@ -548,13 +549,23 @@ func parseBitfields(groupName, regName string, fieldEls []*SVDField, bitfieldPre
panic(err)
}
}
enumName = fmt.Sprintf("%s_%s%s_%s_%s", groupName, bitfieldPrefix, regName, fieldName, enumName)
_, seen := enumSeen[enumName]
enumSeen[enumName] = seen
fields = append(fields, Bitfield{
name: fmt.Sprintf("%s_%s%s_%s_%s", groupName, bitfieldPrefix, regName, fieldName, enumName),
name: enumName,
description: enumDescription,
value: uint32(enumValue),
})
}
}
// check if any of the field names appeared more than once. if so, append
// its value onto its name to ensure each name is unique.
for i, field := range fields {
if dup, seen := enumSeen[field.name]; dup && seen {
fields[i].name = fmt.Sprintf("%s_%d", field.name, field.value)
}
}
return fields
}