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-rw-r--r--src/target/fake_trx/ctrl_if_bts.py87
1 files changed, 87 insertions, 0 deletions
diff --git a/src/target/fake_trx/ctrl_if_bts.py b/src/target/fake_trx/ctrl_if_bts.py
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+#!/usr/bin/env python2
+# -*- coding: utf-8 -*-
+
+# Virtual Um-interface (fake transceiver)
+# CTRL interface implementation (OsmoBTS specific)
+#
+# (C) 2016-2017 by Vadim Yanitskiy <axilirator@gmail.com>
+#
+# All Rights Reserved
+#
+# 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 2 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, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+from ctrl_if import CTRLInterface
+
+class CTRLInterfaceBTS(CTRLInterface):
+ # Internal state variables
+ trx_started = False
+ rx_freq = None
+ tx_freq = None
+
+ def __init__(self, remote_addr, remote_port, bind_port):
+ print("[i] Init CTRL interface for BTS")
+ CTRLInterface.__init__(self, remote_addr, remote_port, bind_port)
+
+ def shutdown(self):
+ print("[i] Shutdown CTRL interface for BTS")
+ CTRLInterface.shutdown(self)
+
+ def parse_cmd(self, request):
+ # Power control
+ if self.verify_cmd(request, "POWERON", 0):
+ print("[i] Recv POWERON CMD")
+
+ # Ensure transceiver isn't working
+ if self.trx_started:
+ print("[!] Transceiver already started")
+ return -1
+
+ # Ensure RX / TX freq. are set
+ if (self.rx_freq is None) or (self.tx_freq is None):
+ print("[!] Transceiver already started")
+ return -1
+
+ print("[i] Starting transceiver...")
+ self.trx_started = True
+ return 0
+
+ elif self.verify_cmd(request, "POWEROFF", 0):
+ print("[i] Recv POWEROFF cmd")
+
+ print("[i] Stopping transceiver...")
+ self.trx_started = False
+ return 0
+
+ # Tuning Control
+ elif self.verify_cmd(request, "RXTUNE", 1):
+ print("[i] Recv RXTUNE cmd")
+
+ # TODO: check freq range
+ self.rx_freq = int(request[1]) * 1000
+ return 0
+
+ elif self.verify_cmd(request, "TXTUNE", 1):
+ print("[i] Recv TXTUNE cmd")
+
+ # TODO: check freq range
+ self.tx_freq = int(request[1]) * 1000
+ return 0
+
+ # Wrong / unknown command
+ else:
+ # We don't care about other commands,
+ # so let's merely ignore them ;)
+ print("[i] Ignore CMD %s" % request[0])
+ return 0