[rdl2ot] Make the tool a peak rdl pluggin

Signed-off-by: Douglas Reis <[email protected]>

Author: engdoreis

rdl2ot/README.md

@@ -1,7 +1,8 @@
 # rdl2ot cli tool
 A PeakRDL extension to generate Opentitan style source files from SystemRDL files.
 
-## How to generate the Opentitan register interfaces from a RDL file
+## Using as a standalone tool
+### How to generate the Opentitan register interfaces from a RDL file
 ```sh
 rdl2ot export-rtl <input_rdl> <output_dir>
 ```
@@ -12,6 +13,17 @@ mkdir -p /tmp/lc_ctrl
 rdl2ot export-rtl tests/snapshots/lc_ctrl.rdl /tmp/lc_ctrl/
 ```
 
+## Using as a Peakrdl pluggin 
+### Installing
+```sh
+pip install peakrdl rdl2ot
+```
+### Running
+```sh
+mkdir -p /tmp/lc_ctrl
+peakrdl rdl2ot tests/snapshots/lc_ctrl.rdl -o /tmp/lc_ctrl/
+```
+
 ## Contributing
 ### How to run tests
 ```sh

rdl2ot/pyproject.toml

@@ -23,6 +23,9 @@ Homepage = "https://github.com/lowrisc/benevisrdl"
 Issues = "https://github.com/lowrisc/benevisrdl/issues"
 Documentation = "https://github.com/lowrisc/benevisrdl"
 
+[project.entry-points."peakrdl.exporters"]
+rdl2ot = "rdl2ot.__peakrdl__:Exporter"
+
 [build-system]
 requires = ["hatchling"]
 build-backend = "hatchling.build"
@@ -38,3 +41,4 @@ executionEnvironments = [
 
 [tool.hatch.build.targets.wheel]
 packages = ["src/rdl2ot", "src/templates"]
+

rdl2ot/src/rdl2ot/__peakrdl__.py

@@ -0,0 +1,31 @@
+#!/usr/bin/env python3
+# Copyright lowRISC contributors.
+# Licensed under the Apache License, Version 2.0, see LICENSE for details.
+# SPDX-License-Identifier: Apache-2.0
+
+"""Generates Opentitan regblock RTL."""
+
+from pathlib import Path
+from typing import TYPE_CHECKING
+
+from peakrdl.plugins.exporter import ExporterSubcommandPlugin  # pylint: disable=import-error
+
+from rdl2ot import rtl_exporter
+
+if TYPE_CHECKING:
+    import argparse
+
+    from systemrdl.node import AddrmapNode
+
+
+class Exporter(ExporterSubcommandPlugin):
+    """Generates Opentitan regblock RTL."""
+
+    short_desc = "Generates Opentitan register block RTL."
+
+    def add_exporter_arguments(self, arg_group: "argparse.ArgumentParser") -> None:
+        """No extra arguments."""
+
+    def do_export(self, top_node: "AddrmapNode", options: "argparse.Namespace") -> None:
+        """Plugin entry function."""
+        rtl_exporter.run(top_node, Path(options.output))

rdl2ot/src/rdl2ot/cli.py

@@ -41,6 +41,6 @@ def export_rtl(input_file: str, out_dir: str) -> None:
     rdlc.compile_file(input_file)
     root = rdlc.elaborate()
 
-    rtl_exporter.run(root, Path(out_dir))
+    rtl_exporter.run(root.top, Path(out_dir))
 
     print("Successfully finished!\n")

rdl2ot/src/rdl2ot/rtl_exporter.py

@@ -17,10 +17,10 @@
 DEFAULT_INTERFACE_NAME = "regs"
 
 
-def run(obj: node.RootNode, out_dir: Path) -> None:
+def run(root_node: node.AddrmapNode, out_dir: Path) -> None:
     """Export RDL to opentitan RTL."""
     factory = OtInterfaceBuilder()
-    data = factory.parse_root(obj.top)
+    data = factory.parse_root(root_node)
 
     Path(out_dir / "rdl.json").write_text(json.dumps(data, indent=2), encoding="utf-8")
 

rdl2ot/tests/test_rdl2ot.py

@@ -24,7 +24,10 @@ def _run_cli_tool(input_file_path: Path, output_dir_path: Path) -> subprocess.Co
     ]
     return subprocess.run(command, capture_output=True, text=True, check=False)  # noqa: S603
 
+
 test_ips = ["lc_ctrl", "uart"]
+
+
 @pytest.mark.parametrize("ip_block", test_ips)
 def test_export_ip(tmp_path: Path, ip_block: str) -> None:
     """Test an given ip block."""