67 lines
2.3 KiB
Python
67 lines
2.3 KiB
Python
# osmo_gsm_tester: class defining a RF emulation object implemented using SRS ENB stdin interface
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#
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# Copyright (C) 2020 by sysmocom - s.f.m.c. GmbH
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#
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# Author: Pau Espin Pedrol <pespin@sysmocom.de>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from ..core import log
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from .rfemu import RFemulation
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from .gnuradio_zmq_broker import GrBroker
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class RFemulationGnuradioZmq(RFemulation):
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##############
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# PROTECTED
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##############
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def __init__(self, conf):
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super().__init__(conf, 'gnuradio_zmq')
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self.broker = None
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self.ctrl_port = 5005
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self.cell_id = int(conf.get('cell_id'))
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if self.cell_id is None:
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raise log.Error('No "cell_id" attribute provided in rfemu conf!')
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self.enb = conf.get('enb')
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if self.enb is None:
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raise log.Error('No "srsenb" attribute provided in rfemu conf!')
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self.set_name('%s_%s_%d' % (self.name(), self.enb.name(), self.cell_id))
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self.testenv = self.enb.testenv
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self.configure()
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def __del__(self):
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if self.broker:
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self.broker.unref()
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self.broker = None
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self.enb = None
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self.testenv = None
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def configure(self):
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self.broker = GrBroker.ref()
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#############################
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# PUBLIC (test API included)
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#############################
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def set_attenuation(self, db):
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for cell in self.enb.gen_conf['enb']['cell_list']:
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if int(cell['cell_id']) == self.cell_id:
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# convert negative dB to amplitude
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amp = pow(10, -db/20.0)
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self.broker.cmd_set_relative_gain_on_local_port(cell['zmq_enb_peer_port'], amp)
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break
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def get_max_attenuation(self):
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return 200
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# vim: expandtab tabstop=4 shiftwidth=4
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