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#!/usr/bin/env python2
# -*- coding: utf-8 -*-
# GR-GSM based transceiver
# CTRL interface for OsmocomBB
#
# (C) 2016-2019 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 CTRLInterfaceBB(CTRLInterface):
def __init__(self, trx, *ctrl_if_args):
CTRLInterface.__init__(self, *ctrl_if_args)
print("[i] Init CTRL interface (%s)" % self.desc_link())
# Transceiver instance we belong to
self.trx = trx
def parse_cmd(self, request):
# Power control
if self.verify_cmd(request, "POWERON", 0):
print("[i] Recv POWERON CMD")
# Start transceiver
if not self.trx.start():
return -1
return 0
elif self.verify_cmd(request, "POWEROFF", 0):
print("[i] Recv POWEROFF cmd")
# Stop transceiver
self.trx.stop()
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.trx.radio_if.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.trx.radio_if.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.trx.radio_if.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.trx.radio_if.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
# Channel combination number (see GSM TS 05.02)
# TODO: check this value
config = int(request[2])
# TODO: check return value
self.trx.radio_if.set_slot(tn, config)
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
meas_dbm = self.trx.measure(meas_freq)
if meas_dbm is None:
return -1
return (0, [str(meas_dbm)])
# Timing Advance control
elif self.verify_cmd(request, "SETTA", 1):
print("[i] Recv SETTA cmd")
# Check TA range
ta = int(request[1])
if ta < 0 or ta > 63:
print("[!] TA value must be in range: 0..63")
return -1
self.trx.radio_if.set_ta(ta)
return 0
# 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
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