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libgpiod 2.x api

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This commit is contained in:
Maxim Devaev
2024-01-14 22:25:09 +02:00
parent e1c6d1a990
commit e28dec4e33
8 changed files with 141 additions and 136 deletions
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56
kvmd/plugins/atx/gpio.py
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@@ -20,6 +20,8 @@
# ========================================================================== #
import asyncio
from typing import AsyncGenerator
import gpiod
@@ -74,13 +76,11 @@ class Plugin(BaseAtx): # pylint: disable=too-many-instance-attributes
self.__notifier = aiotools.AioNotifier()
self.__region = aiotools.AioExclusiveRegion(AtxIsBusyError, self.__notifier)
self.__chip: (gpiod.Chip | None) = None
self.__power_switch_line: (gpiod.Line | None) = None
self.__reset_switch_line: (gpiod.Line | None) = None
self.__line_request: (gpiod.LineRequest | None) = None
self.__reader = aiogp.AioReader(
path=self.__device_path,
consumer="kvmd::atx::leds",
consumer="kvmd::atx",
pins={
power_led_pin: aiogp.AioReaderPinParams(power_led_inverted, power_led_debounce),
hdd_led_pin: aiogp.AioReaderPinParams(hdd_led_inverted, hdd_led_debounce),
@@ -108,17 +108,17 @@ class Plugin(BaseAtx): # pylint: disable=too-many-instance-attributes
}
def sysprep(self) -> None:
assert self.__chip is None
assert self.__power_switch_line is None
assert self.__reset_switch_line is None
self.__chip = gpiod.Chip(self.__device_path)
self.__power_switch_line = self.__chip.get_line(self.__power_switch_pin)
self.__power_switch_line.request("kvmd::atx::power_switch", gpiod.LINE_REQ_DIR_OUT, default_vals=[0])
self.__reset_switch_line = self.__chip.get_line(self.__reset_switch_pin)
self.__reset_switch_line.request("kvmd::atx::reset_switch", gpiod.LINE_REQ_DIR_OUT, default_vals=[0])
assert self.__line_request is None
self.__line_request = gpiod.request_lines(
self.__device_path,
consumer="kvmd::atx",
config={
(self.__power_switch_pin, self.__reset_switch_pin): gpiod.LineSettings(
direction=gpiod.line.Direction.OUTPUT,
output_value=gpiod.line.Value(False),
),
},
)
async def get_state(self) -> dict:
return {
@@ -143,9 +143,9 @@ class Plugin(BaseAtx): # pylint: disable=too-many-instance-attributes
await self.__reader.poll()
async def cleanup(self) -> None:
if self.__chip:
if self.__line_request:
try:
self.__chip.close()
self.__line_request.release()
except Exception:
pass
@@ -170,13 +170,13 @@ class Plugin(BaseAtx): # pylint: disable=too-many-instance-attributes
# =====
async def click_power(self, wait: bool) -> None:
await self.__click("power", self.__power_switch_line, self.__click_delay, wait)
await self.__click("power", self.__power_switch_pin, self.__click_delay, wait)
async def click_power_long(self, wait: bool) -> None:
await self.__click("power_long", self.__power_switch_line, self.__long_click_delay, wait)
await self.__click("power_long", self.__power_switch_pin, self.__long_click_delay, wait)
async def click_reset(self, wait: bool) -> None:
await self.__click("reset", self.__reset_switch_line, self.__click_delay, wait)
await self.__click("reset", self.__reset_switch_pin, self.__click_delay, wait)
# =====
@@ -184,17 +184,23 @@ class Plugin(BaseAtx): # pylint: disable=too-many-instance-attributes
return (await self.get_state())["leds"]["power"]
@aiotools.atomic_fg
async def __click(self, name: str, line: gpiod.Line, delay: float, wait: bool) -> None:
async def __click(self, name: str, pin: int, delay: float, wait: bool) -> None:
if wait:
async with self.__region:
await self.__inner_click(name, line, delay)
await self.__inner_click(name, pin, delay)
else:
await aiotools.run_region_task(
f"Can't perform ATX {name} click or operation was not completed",
self.__region, self.__inner_click, name, line, delay,
self.__region, self.__inner_click, name, pin, delay,
)
@aiotools.atomic_fg
async def __inner_click(self, name: str, line: gpiod.Line, delay: float) -> None:
await aiogp.pulse(line, delay, 1)
async def __inner_click(self, name: str, pin: int, delay: float) -> None:
assert self.__line_request
try:
self.__line_request.set_value(pin, gpiod.line.Value(True))
await asyncio.sleep(delay)
finally:
self.__line_request.set_value(pin, gpiod.line.Value(False))
await asyncio.sleep(1)
get_logger(0).info("Clicked ATX button %r", name)