sim: Add Daughterboard Methods

This commit adds daughterboard simulation to the simulator. There is a
sim_dboard class which registers it's methods with the rpc server. These
methods are visible over mpm as well as the mpm_shell.

Signed-off-by: Samuel O'Brien <sam.obrien@ni.com>

1 files changed, 59 insertions, 0 deletions

diff --git a/mpm/python/usrp_mpm/simulator/sim_dboard.py b/mpm/python/usrp_mpm/simulator/sim_dboard.py
new file mode 100644
index 000000000..a264eae9c
--- /dev/null
+++ b/mpm/python/usrp_mpm/simulator/sim_dboard.py
@@ -0,0 +1,59 @@
+#
+# Copyright 2020 Ettus Research, a National Instruments Brand
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+from usrp_mpm.dboard_manager import DboardManagerBase
+from usrp_mpm.mpmlog import get_logger
+from usrp_mpm.mpmutils import to_native_str
+
+class SimulatedDboardBase(DboardManagerBase):
+    """
+    A class to simulate daughterboards in a simulated device.
+    """
+
+    # Extra Overridables:
+    # This is a list of extra methods to add to the class
+    # Each element should be either a string or a tuple of
+    # (string, function). Each element is added to the class
+    # with the name being the string and the function being
+    # the function, or the default of taking any amount of
+    # arguments and returning None
+    extra_methods = []
+
+    def __init__(self, slot_idx, **kwargs):
+        super().__init__(slot_idx, **kwargs)
+        self.log = get_logger("sim_db-{}".format(slot_idx))
+        self.device_info = {
+            'pid': to_native_str(self.__class__.pids[0]),
+            'serial': to_native_str("todo:serial-here"),
+            'rev': to_native_str("1"),
+            'eeprom_version': to_native_str('0')
+        }
+        self.rev = int(self.device_info['rev'])
+
+        self.log.trace("This is a rev: {}".format(chr(65 + self.rev)))
+        self._make_extra_methods()
+
+    def init(self, args):
+        self.log.trace("sim_db#init called")
+        return True
+
+    def tear_down(self):
+        self.log.trace("sim_db#tear_down called")
+
+    def _make_extra_methods(self):
+        for entry in self.__class__.extra_methods:
+            func = None
+            prop_name = None
+            if type(entry) is tuple:
+                func = entry[1]
+                prop_name = entry[0]
+            else:
+                func = lambda *args: None
+                prop_name = entry
+            # default values are needed because loop iterations don't create a new scope in python
+            def wrapped_func(*args, prop_name=prop_name, func=func):
+                self.log.debug("Called {} with args: {}".format(prop_name, args))
+                return func(*args)
+            setattr(self, prop_name, wrapped_func)