| # osmo_gsm_tester: class defining a RF emulation object implemented using SRS ENB stdin interface |
| # |
| # Copyright (C) 2020 by sysmocom - s.f.m.c. GmbH |
| # |
| # Author: Pau Espin Pedrol <pespin@sysmocom.de> |
| # |
| # 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/>. |
| |
| from ..core import log |
| from .rfemu import RFemulation |
| from .gnuradio_zmq_broker import GrBroker |
| |
| class RFemulationGnuradioZmq(RFemulation): |
| ############## |
| # PROTECTED |
| ############## |
| def __init__(self, conf): |
| super().__init__(conf, 'gnuradio_zmq') |
| self.broker = None |
| self.ctrl_port = 5005 |
| self.cell_id = int(conf.get('cell_id')) |
| if self.cell_id is None: |
| raise log.Error('No "cell_id" attribute provided in rfemu conf!') |
| self.enb = conf.get('enb') |
| if self.enb is None: |
| raise log.Error('No "srsenb" attribute provided in rfemu conf!') |
| self.set_name('%s_%s_%d' % (self.name(), self.enb.name(), self.cell_id)) |
| self.testenv = self.enb.testenv |
| self.configure() |
| |
| def __del__(self): |
| if self.broker: |
| self.broker.unref() |
| self.broker = None |
| self.enb = None |
| self.testenv = None |
| |
| def configure(self): |
| self.broker = GrBroker.ref() |
| |
| ############################# |
| # PUBLIC (test API included) |
| ############################# |
| def set_attenuation(self, db): |
| for cell in self.enb.gen_conf['enb']['cell_list']: |
| if int(cell['cell_id']) == self.cell_id: |
| # convert negative dB to amplitude |
| amp = pow(10, -db/20.0) |
| self.broker.cmd_set_relative_gain_on_local_port(cell['zmq_enb_peer_port'], amp) |
| break |
| |
| def get_max_attenuation(self): |
| return 200 |
| |
| # vim: expandtab tabstop=4 shiftwidth=4 |