move param jinja templates into relevant module

src/modules/systemlib/param/CMakeLists.txt

@@ -77,15 +77,16 @@ add_custom_target(parameters_xml DEPENDS ${parameters_xml})
 
 # generate px4_parameters.c and px4_parameters.h
 add_custom_command(OUTPUT px4_parameters.c px4_parameters.h
-	COMMAND ${PYTHON_EXECUTABLE} ${PX4_SOURCE_DIR}/Tools/px_generate_params.py
+	COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/px_generate_params.py
 		--xml ${parameters_xml} --dest ${CMAKE_CURRENT_BINARY_DIR}
 	DEPENDS
-		${parameters_xml}
-		${PX4_SOURCE_DIR}/Tools/px_generate_params.py
-		${PX4_SOURCE_DIR}/Tools/templates/px4_parameters.c.jinja
-		${PX4_SOURCE_DIR}/Tools/templates/px4_parameters.h.jinja
+		parameters_xml
+		${CMAKE_CURRENT_SOURCE_DIR}/px_generate_params.py
+		${CMAKE_CURRENT_SOURCE_DIR}/templates/px4_parameters.c.jinja
+		${CMAKE_CURRENT_SOURCE_DIR}/templates/px4_parameters.h.jinja
 	)
 set_source_files_properties(px4_parameters.c PROPERTIES GENERATED TRUE)
+set_source_files_properties(px4_parameters.h PROPERTIES GENERATED TRUE)
 
 px4_add_module(
 	MODULE modules__systemlib__param
@@ -95,6 +96,7 @@ px4_add_module(
 	SRCS
 		${SRCS}
 		px4_parameters.c
+		px4_parameters.h
 	DEPENDS
 		platforms__common
 	)

src/modules/systemlib/param/px_generate_params.py

@@ -0,0 +1,58 @@
+#!/usr/bin/env python
+"""
+Param source code generation script.
+"""
+from __future__ import print_function
+import xml.etree.ElementTree as ET
+import codecs
+import argparse
+from jinja2 import Environment, FileSystemLoader
+import os
+
+def generate(xml_file, dest='.'):
+    """
+    Generate px4 param source from xml.
+
+    @param xml_file: input parameter xml file
+    @param dest: Destination directory for generated files
+        None means to scan everything.
+    """
+    # pylint: disable=broad-except
+    tree = ET.parse(xml_file)
+    root = tree.getroot()
+
+    params = []
+    for group in root:
+        if group.tag == "group" and "no_code_generation" not in group.attrib:
+            for param in group:
+                params.append(param)
+
+    params = sorted(params, key=lambda name: name.attrib["name"])
+
+    script_path = os.path.dirname(os.path.realpath(__file__))
+
+    # for jinja docs see: http://jinja.pocoo.org/docs/2.9/api/
+    env = Environment(
+        loader=FileSystemLoader(os.path.join(script_path, 'templates')))
+
+    if not os.path.isdir(dest):
+        os.path.mkdir(dest)
+
+    template_files = [
+        'px4_parameters.h.jinja',
+        'px4_parameters.c.jinja',
+    ]
+    for template_file in template_files:
+        template = env.get_template(template_file)
+        with open(os.path.join(
+                dest, template_file.replace('.jinja','')), 'w') as fid:
+            fid.write(template.render(params=params))
+
+if __name__ == "__main__":
+    arg_parser = argparse.ArgumentParser()
+    arg_parser.add_argument("--xml", help="parameter xml file")
+    arg_parser.add_argument("--dest", help="destination path", default=os.path.curdir)
+    args = arg_parser.parse_args()
+    generate(xml_file=args.xml, dest=args.dest)
+
+#  vim: set et fenc=utf-8 ff=unix sts=4 sw=4 ts=4 :

src/modules/systemlib/param/templates/px4_parameters.c.jinja

@@ -0,0 +1,33 @@
+{# jinja syntax: http://jinja.pocoo.org/docs/2.9/templates/ #}
+#include <px4_parameters.h>
+
+// DO NOT EDIT
+// This file is autogenerated from paramaters.xml
+
+__BEGIN_DECLS
+
+const
+#ifndef __PX4_DARWIN
+__attribute__((used, section("__param")))
+#endif
+
+struct px4_parameters_t px4_parameters = {
+{% for param in params %}
+	{
+		"{{ param.attrib["name"] }}",
+		PARAM_TYPE_{{ param.attrib["type"] }},
+	{%- if param.attrib["type"] == "FLOAT" %}
+		.val.f = {{ param.attrib["default"] }}
+	{%- elif param.attrib["type"] == "INT32" %}
+		.val.i = {{ param.attrib["default"] }}
+	{%- endif %}
+	},
+{% endfor %}
+	{{ params | length }}
+};
+
+//extern const struct px4_parameters_t px4_parameters;
+
+__END_DECLS
+
+{# vim: set noet ft=jinja fenc=utf-8 ff=unix sts=4 sw=4 ts=4 : #}

src/modules/systemlib/param/templates/px4_parameters.h.jinja

@@ -0,0 +1,21 @@
+{# jinja syntax: http://jinja.pocoo.org/docs/2.9/templates/ #}
+#include <stdint.h>
+#include <systemlib/param/param.h>
+
+// DO NOT EDIT
+// This file is autogenerated from parameters.xml
+
+__BEGIN_DECLS
+
+struct px4_parameters_t {
+{%- for param in params %}
+	const struct param_info_s __param__{{ param.attrib["name"] }};
+{%- endfor %}
+	const unsigned int param_count;
+};
+
+extern const struct px4_parameters_t px4_parameters;
+
+__END_DECLS
+
+{# vim: set noet ft=jinja fenc=utf-8 ff=unix sts=4 sw=4 ts=4 : #}