69 lines
2.3 KiB
Python
69 lines
2.3 KiB
Python
# osmo_gsm_tester: class defining a Power Supply object
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#
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# Copyright (C) 2018-2019 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 abc import ABCMeta, abstractmethod
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from ..core import log
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from ..core.event_loop import MainLoop
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class PowerSupply(log.Origin, metaclass=ABCMeta):
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##############
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# PROTECTED
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##############
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def __init__(self, conf, name):
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"""Base constructor. Must be called by subclass."""
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super().__init__(log.C_RUN, name)
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self.conf = conf
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########################
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# PUBLIC - INTERNAL API
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########################
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@abstractmethod
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def is_powered(self):
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"""Get whether the device is powered on or off. Must be implemented by subclass."""
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pass
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@abstractmethod
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def power_set(self, onoff):
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"""Turn on (onoff=True) or off (onoff=False) the device. Must be implemented by subclass."""
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pass
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def power_cycle(self, sleep=0):
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"""Turns off the device, waits N.N seconds, then turn on the device."""
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self.power_set(False)
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MainLoop.sleep(sleep)
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self.power_set(True)
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def get_instance_by_type(pwsupply_type, pwsupply_opt):
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"""Allocate a PowerSupply child class based on type. Opts are passed to the newly created object."""
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if pwsupply_type == 'sispm':
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from .powersupply_sispm import PowerSupplySispm
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obj = PowerSupplySispm
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elif pwsupply_type == 'intellinet':
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from .powersupply_intellinet import PowerSupplyIntellinet
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obj = PowerSupplyIntellinet
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else:
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raise log.Error('PowerSupply type not supported:', pwsupply_type)
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return obj(pwsupply_opt)
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# vim: expandtab tabstop=4 shiftwidth=4
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