diff options
Diffstat (limited to 'python/trx/ctrl_if_bb.py')
| -rw-r--r-- | python/trx/ctrl_if_bb.py | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/python/trx/ctrl_if_bb.py b/python/trx/ctrl_if_bb.py new file mode 100644 index 0000000..26ae49a --- /dev/null +++ b/python/trx/ctrl_if_bb.py @@ -0,0 +1,155 @@ +#!/usr/bin/env python2 +# -*- coding: utf-8 -*- + +# GR-GSM based transceiver +# CTRL interface for OsmocomBB +# +# (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. + +import grgsm +from ctrl_if import ctrl_if + +class ctrl_if_bb(ctrl_if): + def __init__(self, remote_addr, remote_port, bind_port, tb, pm): + print("[i] Init CTRL interface") + ctrl_if.__init__(self, remote_addr, remote_port, bind_port) + + # Set link to the follow graph (top block) + self.tb = tb + # Power measurement + self.pm = pm + + def shutdown(self): + print("[i] Shutdown CTRL interface") + ctrl_if.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.tb.trx_started: + print("[!] Transceiver already started") + return -1 + + print("[i] Starting transceiver...") + self.tb.trx_started = True + self.tb.start() + + return 0 + + elif self.verify_cmd(request, "POWEROFF", 0): + print("[i] Recv POWEROFF cmd") + + # TODO: flush all buffers between blocks + if self.tb.trx_started: + print("[i] Stopping transceiver...") + self.tb.trx_started = False + self.tb.stop() + self.tb.wait() + + return 0 + + # Gain control + elif self.verify_cmd(request, "SETRXGAIN", 1): + print("[i] Recv SETRXGAIN cmd") + + # TODO: check gain value + gain = int(request[1]) + self.tb.set_rx_gain(gain) + + return 0 + + elif self.verify_cmd(request, "SETTXGAIN", 1): + print("[i] Recv SETTXGAIN cmd") + + # TODO: check gain value + gain = int(request[1]) + self.tb.set_tx_gain(gain) + + return 0 + + # Tuning Control + elif self.verify_cmd(request, "RXTUNE", 1): + print("[i] Recv RXTUNE cmd") + + # TODO: check freq range + freq = int(request[1]) * 1000 + self.tb.set_rx_freq(freq) + + return 0 + + elif self.verify_cmd(request, "TXTUNE", 1): + print("[i] Recv TXTUNE cmd") + + # TODO: check freq range + freq = int(request[1]) * 1000 + self.tb.set_tx_freq(freq) + + return 0 + + # Timeslot management + elif self.verify_cmd(request, "SETSLOT", 2): + print("[i] Recv SETSLOT cmd") + + # Obtain TS index + tn = int(request[1]) + if tn not in range(0, 8): + print("[!] TS index should be in range: 0..7") + return -1 + + # Ignore timeslot type for now + config = int(request[2]) + print("[i] Configure timeslot filter to: %s" + % ("drop all" if config == 0 else "TS %d" % tn)) + + if config == 0: + # Value 0 means 'drop all' + self.tb.ts_filter.set_policy( + grgsm.FILTER_POLICY_DROP_ALL) + else: + self.tb.ts_filter.set_policy( + grgsm.FILTER_POLICY_DEFAULT) + self.tb.ts_filter.set_tn(tn) + + return 0 + + # Power measurement + elif self.verify_cmd(request, "MEASURE", 1): + print("[i] Recv MEASURE cmd") + + # TODO: check freq range + meas_freq = int(request[1]) * 1000 + + # HACK: send fake low power values + # until actual power measurement is implemented + meas_dbm = str(self.pm.measure(meas_freq)) + + return (0, [meas_dbm]) + + # Misc + elif self.verify_cmd(request, "ECHO", 0): + print("[i] Recv ECHO cmd") + return 0 + + # Wrong / unknown command + else: + print("[!] Wrong request on CTRL interface") + return -1 |