1 files changed, 52 insertions, 0 deletions
diff --git a/mpm/python/usrp_mpm/simulator/config.py b/mpm/python/usrp_mpm/simulator/config.py
new file mode 100644
index 000000000..a5f07950d
--- /dev/null
+++ b/mpm/python/usrp_mpm/simulator/config.py
@@ -0,0 +1,52 @@
+#
+# Copyright 2020 Ettus Research, a National Instruments Brand
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+"""
+This module contains the logic to read configuration files from the
+filesystem and parse configuration data from them. This data includes
+anything from the serial number of the radio to the type of hardware
+it identifies itself as.
+"""
+
+import configparser
+from .sample_source import sinks, sources, NullSamples
+
+class Config:
+    """This class represents a configuration file for the usrp simulator.
+    This file should conform to the .ini format defined by the
+    configparser module
+
+    It should have a [sample.source] section and a [sample.sink] section.
+    Each section should have a 'class' key, which gives the name of the
+    Source/Sink class to instanitate (see the decorators in
+    sample_source.py). The other key value pairs in the section are
+    passed to the source/sink constructor as strings through **kwargs
+    """
+    def __init__(self, source_gen, sink_gen):
+        self.source_gen = source_gen
+        self.sink_gen = sink_gen
+
+    @classmethod
+    def from_path(cls, path):
+        """Parse a config .ini file from a path"""
+        parser = configparser.ConfigParser()
+        parser.read(path)
+        source_gen = Config._read_sample_section(parser['sample.source'], sources)
+        sink_gen = Config._read_sample_section(parser['sample.sink'], sinks)
+        return cls(source_gen, sink_gen)
+
+    @staticmethod
+    def _read_sample_section(section, lookup):
+        args = dict(section)
+        class_name = args.pop("class")
+        constructor = lookup[class_name]
+        def section_gen():
+            return constructor(**args)
+        return section_gen
+
+    @classmethod
+    def default(cls):
+        """Return a default config"""
+        return cls(NullSamples, NullSamples)