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# ========================================================================== #
# #
# KVMD - The main Pi-KVM daemon. #
# #
# Copyright (C) 2018 Maxim Devaev <[email protected]> #
# #
# 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 <https://www.gnu.org/licenses/>. #
# #
# ========================================================================== #
from typing import Type
from typing import Optional
from ...errors import OperationError
from ... import aiotools
from .. import BasePlugin
from .. import get_plugin_class
# =====
class GpioError(Exception):
pass
class GpioOperationError(OperationError, GpioError):
pass
class GpioDriverOfflineError(GpioOperationError):
def __init__(self, driver: "BaseUserGpioDriver") -> None:
super().__init__(f"GPIO driver {driver.get_instance_name()!r} is offline")
# =====
class BaseUserGpioDriver(BasePlugin):
def get_instance_name(self) -> str:
raise NotImplementedError
def register_input(self, pin: int) -> None:
raise NotImplementedError
def register_output(self, pin: int, initial: Optional[bool]) -> None:
raise NotImplementedError
def prepare(self, notifier: aiotools.AioNotifier) -> None:
raise NotImplementedError
async def run(self) -> None:
raise NotImplementedError
def cleanup(self) -> None:
pass
def read(self, pin: int) -> bool:
raise NotImplementedError
def write(self, pin: int, state: bool) -> None:
raise NotImplementedError
# =====
def get_ugpio_driver_class(name: str) -> Type[BaseUserGpioDriver]:
return get_plugin_class("ugpio", name) # type: ignore
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