mirror of
https://github.com/mofeng-git/One-KVM.git
synced 2025-12-12 01:00:29 +08:00
65 lines
2.3 KiB
Python
65 lines
2.3 KiB
Python
# ========================================================================== #
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# #
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# KVMD - The main Pi-KVM daemon. #
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# #
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# Copyright (C) 2018 Maxim Devaev <mdevaev@gmail.com> #
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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 published by #
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# the Free Software Foundation, either version 3 of the License, or #
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# (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 <https://www.gnu.org/licenses/>. #
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# #
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# ========================================================================== #
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import contextlib
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from typing import Generator
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from RPi import GPIO
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from .logging import get_logger
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# =====
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@contextlib.contextmanager
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def bcm() -> Generator[None, None, None]:
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logger = get_logger(2)
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GPIO.setmode(GPIO.BCM)
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logger.info("Configured GPIO mode as BCM")
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try:
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yield
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finally:
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GPIO.cleanup()
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logger.info("GPIO cleaned")
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def set_output(pin: int, initial: bool=False) -> int:
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assert pin > 0, pin
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GPIO.setup(pin, GPIO.OUT, initial=initial)
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return pin
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def set_input(pin: int) -> int:
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assert pin > 0, pin
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GPIO.setup(pin, GPIO.IN)
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return pin
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def read(pin: int) -> bool:
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assert pin > 0, pin
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return bool(GPIO.input(pin))
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def write(pin: int, flag: bool) -> None:
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assert pin > 0, pin
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GPIO.output(pin, flag)
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