[reggen] generate defines of type unsigned ints
Wrote a few lines so gen_cheader.py could generate defines for fields
with unsigned values.
Prevents warnings like the following:
```/usr/local/google/home/drewmacrae/opentitan/util/reggen/gen_cheader.py:210:
UserWarning: Cannot generate a module define of type int unsigned```
Signed-off-by: Drew Macrae <drewmacrae@google.com>
diff --git a/util/reggen/gen_cheader.py b/util/reggen/gen_cheader.py
index c871210..530b617 100644
--- a/util/reggen/gen_cheader.py
+++ b/util/reggen/gen_cheader.py
@@ -205,7 +205,7 @@
existing_defines: Set[str]) -> None:
# Presently there is only one type (int), however if the new types are
# added, they potentially need to be handled differently.
- known_types = ["int"]
+ known_types = ["int", "int unsigned"]
if param.param_type not in known_types:
warnings.warn("Cannot generate a module define of type {}"
.format(param.param_type))
@@ -217,7 +217,7 @@
# otherwise, assume StudlyCaps and covert it to snake_case.
param_name = param.name if '_' in param.name else to_snake_case(param.name)
define_name = as_define(module_name + '_PARAM_' + param_name)
- if param.param_type == "int":
+ if param.param_type == "int" or param.param_type == "int unsigned":
define = gen_define(define_name, [], param.value,
existing_defines)
