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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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34
kvmd/plugins/ugpio/locator.py
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@@ -53,9 +53,7 @@ class Plugin(BaseUserGpioDriver):
self.__device_path = device_path
self.__tasks: dict[int, (asyncio.Task | None)] = {}
self.__chip: (gpiod.Chip | None) = None
self.__lines: dict[int, gpiod.Line] = {}
self.__line_request: (gpiod.LineRequest | None) = None
@classmethod
def get_plugin_options(cls) -> dict:
@@ -76,11 +74,16 @@ class Plugin(BaseUserGpioDriver):
self.__tasks[int(pin)] = None
def prepare(self) -> None:
self.__chip = gpiod.Chip(self.__device_path)
for pin in self.__tasks:
line = self.__chip.get_line(pin)
line.request("kvmd::locator::outputs", gpiod.LINE_REQ_DIR_OUT, default_vals=[0])
self.__lines[pin] = line
self.__line_request = gpiod.request_lines(
self.__device_path,
consumer="kvmd::locator",
config={
tuple(self.__tasks): gpiod.LineSettings(
direction=gpiod.line.Direction.OUTPUT,
output_value=gpiod.line.Value(False),
),
},
)
async def cleanup(self) -> None:
tasks = [
@@ -91,9 +94,9 @@ class Plugin(BaseUserGpioDriver):
for task in tasks:
task.cancel()
await asyncio.gather(*tasks, return_exceptions=True)
if self.__chip:
if self.__line_request:
try:
self.__chip.close()
self.__line_request.release()
except Exception:
pass
@@ -111,17 +114,18 @@ class Plugin(BaseUserGpioDriver):
self.__tasks[pin_int] = None
async def __blink(self, pin: int) -> None:
line = self.__lines[pin]
assert pin in self.__tasks
assert self.__line_request
try:
state = 1
state = True
while True:
line.set_value(state)
state = int(not state)
self.__line_request.set_value(pin, gpiod.line.Value(state))
state = (not state)
await asyncio.sleep(0.1)
except asyncio.CancelledError:
pass
finally:
line.set_value(0)
self.__line_request.set_value(pin, gpiod.line.Value(False))
def __str__(self) -> str:
return f"Locator({self._instance_name})"