1 files changed, 153 insertions, 0 deletions
diff --git a/dpd/src/Adapt.py b/dpd/src/Adapt.py
new file mode 100644
index 0000000..b86f604
--- /dev/null
+++ b/dpd/src/Adapt.py
@@ -0,0 +1,153 @@
+# -*- coding: utf-8 -*-
+"""
+This module is used to change settings of ODR-DabMod using
+the ZMQ remote control socket.
+"""
+
+import zmq
+import exceptions
+import logging
+import numpy as np
+
+port = 9400
+
+class Adapt:
+    """Uses the ZMQ remote control to change parameters 
+    of the DabMod
+
+    Parameters
+    ----------
+    port : int
+        Port at which the ODR-DabMod is listening to connect the
+        ZMQ remote control.
+    """
+
+    def __init__(self, port, coef_path):
+        logging.info("Instantiate Adapt object")
+        self.port = port
+        self.coef_path = coef_path
+        self.host = "localhost"
+        self._connect()
+
+    def _connect(self):
+        """Establish the connection to ODR-DabMod using
+        a ZMQ socket that is in request mode (Client)"""
+        context = zmq.Context()
+        sock = context.socket(zmq.REQ)
+        sock.connect("tcp://%s:%d" % (self.host, self.port))
+
+        sock.send(b"ping")
+        data = sock.recv_multipart()
+
+        if data != ['ok']:
+            raise exceptions.RuntimeError(
+                "Could not connect to server %s %d." %
+                (self.host, self.port))
+
+        self.sock = sock
+
+    def send_receive(self, message):
+        """Used to send a message to the ODR-DabMod. It always
+        returns a answer it also receives the next message
+        from ODR-DabMod over the ZMQ remote control socket.
+
+        Parameter
+        ---------
+        message : str
+            The message string that will be sent to 
+            the receiver.
+        """
+        logging.info("Send message: %s" % message)
+        msg_parts = message.split(" ")
+        for i, part in enumerate(msg_parts):
+            if i == len(msg_parts) - 1:
+                f = 0
+            else:
+                f = zmq.SNDMORE
+
+            self.sock.send(part.encode(), flags=f)
+
+        data = self.sock.recv_multipart()
+        logging.info("Received message: %s" % message)
+        return data
+
+    def set_txgain(self, gain):
+        """Set a new txgain for the ORD-DabMod.
+
+        Parameters
+        ----------
+        gain : int
+            Value that will be set to be txgain
+        """
+        if gain < 0 or gain > 89:
+            raise exceptions.ValueError("Gain has to be in [0,89]")
+        return self.send_receive("set uhd txgain %d" % gain)
+
+    def get_txgain(self):
+        """Get the txgain value in dB for the ORD-DabMod."""
+        return self.send_receive("get uhd txgain")
+
+    def set_rxgain(self, gain):
+        """Set a new rxgain for the ORD-DabMod.
+
+        Parameters
+        ----------
+        gain : int
+            Value that will be set to be rxgain
+        """
+        if gain < 0 or gain > 89:
+            raise exceptions.ValueError("Gain has to be in [0,89]")
+        return self.send_receive("set uhd rxgain %d" % gain)
+
+    def get_rxgain(self):
+        """Get the rxgain value in dB for the ORD-DabMod."""
+        return self.send_receive("get uhd rxgain")
+
+    def _read_coef_file(self):
+        coefs_complex = []
+        f = open(self.coef_path, 'r')
+        lines = f.readlines()
+        n_coefs = lines[0]
+        coefs = [float(l) for l in lines[1:]]
+        for r, c in zip(coefs[0::2], coefs[1::2]):
+            coefs_complex.append(np.complex64(r + 1j * c))
+        f.close()
+        return coefs_complex
+
+    def get_coefs(self):
+        return self._read_coef_file()
+
+    def _write_coef_file(self, coefs_complex):
+        coef_path = "/home/andreas/dab/ODR-DabMod/polyCoefsCustom"
+        f = open(coef_path, 'w')
+        f.write(str(len(coefs_complex)) + "\n")
+        for coef in coefs_complex:
+            f.write(str(coef.real) + "\n")
+            f.write(str(coef.imag) + "\n")
+        f.close()
+
+    def set_coefs(self, coefs_complex):
+        self._write_coef_file(coefs_complex)
+        self.send_receive("set memlesspoly coeffile polyCoefsCustom")
+
+        # The MIT License (MIT)
+        #
+        # Copyright (c) 2017 Andreas Steger
+        #
+        # Permission is hereby granted, free of charge, to any person obtaining a copy
+        # of this software and associated documentation files (the "Software"), to deal
+        # in the Software without restriction, including without limitation the rights
+        # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+        # copies of the Software, and to permit persons to whom the Software is
+        # furnished to do so, subject to the following conditions:
+        #
+        # The above copyright notice and this permission notice shall be included in all
+        # copies or substantial portions of the Software.
+        #
+        # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+        # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+        # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+        # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+        # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+        # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+        # SOFTWARE.