diff options
Diffstat (limited to 'kvmd/gpio.py')
| -rw-r--r-- | kvmd/gpio.py | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/kvmd/gpio.py b/kvmd/gpio.py deleted file mode 100644 index 8dce12f6..00000000 --- a/kvmd/gpio.py +++ /dev/null @@ -1,101 +0,0 @@ -# ========================================================================== # -# # -# 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/>. # -# # -# ========================================================================== # - - -import asyncio -import contextlib - -from typing import Tuple -from typing import Set -from typing import Generator -from typing import Optional - -from RPi import GPIO - -from .logging import get_logger - -from . import aiotools - - -# ===== -def bcm() -> Generator[None, None, None]: - logger = get_logger(2) - GPIO.setmode(GPIO.BCM) - logger.info("Configured GPIO mode as BCM") - try: - yield - finally: - GPIO.cleanup() - logger.info("GPIO cleaned") - - -def set_output(pin: int, initial: Optional[bool]) -> int: - assert pin >= 0, pin - GPIO.setup(pin, GPIO.OUT, initial=initial) - return pin - - -def set_input(pin: int) -> int: - assert pin >= 0, pin - GPIO.setup(pin, GPIO.IN) - return pin - - -def read(pin: int) -> bool: - assert pin >= 0, pin - return bool(GPIO.input(pin)) - - -def write(pin: int, state: bool) -> None: - assert pin >= 0, pin - GPIO.output(pin, state) - - -class BatchReader: - def __init__( - self, - pins: Set[int], - interval: float, - notifier: aiotools.AioNotifier, - ) -> None: - - self.__pins = sorted(pins) - self.__interval = interval - self.__notifier = notifier - - self.__state = {pin: read(pin) for pin in self.__pins} - self.__flags: Tuple[Optional[bool], ...] = (None,) * len(self.__pins) - - def get(self, pin: int) -> bool: - return self.__state[pin] - - async def poll(self) -> None: - if not self.__pins: - await aiotools.wait_infinite() - else: - while True: - flags = tuple(map(read, self.__pins)) - if flags != self.__flags: - self.__flags = flags - self.__state = dict(zip(self.__pins, flags)) - await self.__notifier.notify() - await asyncio.sleep(self.__interval) |