Merge pull request #55 from vkottler/dev/3.1.3

3.1.3 - Some pruning for XMC4700

ifgen/commands/svd.py

@@ -15,6 +15,7 @@
 # internal
 from ifgen import PKG_NAME
 from ifgen.svd import register_processors
+from ifgen.svd.group import base, enums
 from ifgen.svd.task import SvdProcessingTask
 
 
@@ -31,6 +32,12 @@ def svd_cmd(args: _Namespace) -> int:
     )
     assert path is not None, args.svd_file
 
+    enable_pruning = path.with_suffix("").name in {"XMC4700"}
+
+    # Only enable certain pruning strategies for certain processors.
+    enums.PRUNE_ENUMS = enable_pruning
+    base.PRUNE_STRUCTS = enable_pruning
+
     SvdProcessingTask.svd(path).generate_configs(args.output)
 
     return 0

ifgen/svd/group/base.py

@@ -24,6 +24,9 @@ def peripherals(self) -> Iterator[Peripheral]:
         yield from self.derivatives
 
 
+PRUNE_STRUCTS = False
+
+
 def get_derived(
     peripheral: Peripheral, peripherals: list[Peripheral]
 ) -> Optional[Peripheral]:
@@ -35,7 +38,7 @@ def get_derived(
         result = peripheral.derived_elem
 
     # Check if this peripheral is equivalent to some other peripheral.
-    else:
+    elif PRUNE_STRUCTS:
         for other in peripherals:
             # Always return None if you get far enough to see yourself in the
             # list. That way this peripheral becomes the effective 'root'.

ifgen/svd/group/enums.py

@@ -3,6 +3,7 @@
 """
 
 # built-in
+from os.path import commonprefix
 from typing import Any
 
 # internal
@@ -17,11 +18,15 @@
 }
 
 BY_HASH: dict[str, dict[int, str]] = {}
+PRUNE_ENUMS = False
 
 
 def get_enum_name(name: str, peripheral: str, raw_mapping: EnumValues) -> str:
     """Get the name of an enumeration."""
 
+    if not PRUNE_ENUMS:
+        return name
+
     hashed = hash(
         ",".join(
             name + f"={val['value']}" for name, val in raw_mapping.items()
@@ -123,8 +128,27 @@ def translate_enums(enum: EnumeratedValues) -> EnumValues:
         else:
             enum_data["value"] = int(value_str)
 
-        result[
-            handle_enum_name(name, value.raw_data.get("description"))
-        ] = enum_data
+        final_name = handle_enum_name(name, value.raw_data.get("description"))
+        assert final_name
+
+        # Truncate.
+        final_name = (
+            final_name if len(final_name) < 51 else final_name[:45] + "_cont"
+        )
+        assert len(final_name) < 51
+
+        while final_name in result:
+            final_name += "_"
+
+        assert final_name not in result, (name, final_name)
+        result[final_name] = enum_data
+
+    # Remove common prefix (if present) from enums.
+    length = len(commonprefix(list(result)))
+    if length > 1:
+        result = {
+            key[length:] if length < len(key) else key: value
+            for key, value in result.items()
+        }
 
     return result

local/variables/package.yaml

@@ -1,5 +1,5 @@
 ---
 major: 3
 minor: 1
-patch: 2
+patch: 3
 entry: ig