| # osmo_gsm_tester: class defining a RF emulation object |
| # |
| # 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 abc import ABCMeta, abstractmethod |
| from ..core import log |
| from ..core.event_loop import MainLoop |
| |
| class RFemulation(log.Origin, metaclass=ABCMeta): |
| |
| ############## |
| # PROTECTED |
| ############## |
| def __init__(self, conf, name): |
| """Base constructor. Must be called by subclass.""" |
| super().__init__(log.C_RUN, name) |
| self.conf = conf |
| |
| ############################# |
| # PUBLIC (test API included) |
| ############################# |
| @abstractmethod |
| def set_attenuation(self, db): |
| """Set attenuation in dB on the configured channel""" |
| pass |
| |
| @abstractmethod |
| def get_max_attenuation(self): |
| """Get maximum channel attenuation""" |
| pass |
| |
| def get_instance_by_type(rfemu_type, rfemu_opt): |
| """Allocate a RFemulation child class based on type. Opts are passed to the newly created object.""" |
| if rfemu_type == 'amarisoftctl': |
| from .rfemu_amarisoftctrl import RFemulationAmarisoftCtrl |
| obj = RFemulationAmarisoftCtrl |
| elif rfemu_type == 'minicircuits': |
| from .rfemu_minicircuits import RFemulationMinicircuitsHTTP |
| obj = RFemulationMinicircuitsHTTP |
| else: |
| raise log.Error('RFemulation type not supported:', rfemu_type) |
| |
| return obj(rfemu_opt) |
| |
| |
| |
| # vim: expandtab tabstop=4 shiftwidth=4 |