Initial commit for N3xx development.

- Creates mpm/ subdirectory
- First pass at hardware daemon/MPM
- New code for LMK04828, AD9371
- spidev integration

Contributions by:

Martin Braun <martin.braun@ettus.com>
Derek Kozel <derek.kozel@ettus.com>
Mark Meserve <mark.meserve@ni.com>
Andrej Rode <andrej.rode@ettus.com>

1 files changed, 48 insertions, 0 deletions

diff --git a/mpm/python/usrp_mpm/rpc_process.py b/mpm/python/usrp_mpm/rpc_process.py
new file mode 100644
index 000000000..b8783f325
--- /dev/null
+++ b/mpm/python/usrp_mpm/rpc_process.py
@@ -0,0 +1,48 @@
+#
+# Copyright 2017 Ettus Research (National Instruments)
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+"""
+Code to run the discovery port
+"""
+
+from __future__ import print_function
+from multiprocessing import Process
+
+from gevent.server import StreamServer
+from mprpc import RPCServer
+from types import graceful_exit, MPM_RPC_PORT
+import rpc_server
+
+
+
+def spawn_rpc_process(server, state, udp_port=MPM_RPC_PORT):
+    """
+    Returns a process that contains the RPC server
+    """
+
+    p_args = [server, udp_port, state]
+    p = Process(target=_rpc_server_process, args=p_args)
+    p.start()
+    return p
+
+
+def _rpc_server_process(server, shared_state, port):
+    try:
+        rpc_class = getattr(rpc_server, server+"Server")
+        server = StreamServer(('0.0.0.0', port), handle=rpc_class(shared_state))
+        server.serve_forever()
+    except graceful_exit:
+        server.close()