1 files changed, 86 insertions, 0 deletions
diff --git a/kvmd/plugins/ugpio/gpio.py b/kvmd/plugins/ugpio/gpio.py
new file mode 100644
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+++ b/kvmd/plugins/ugpio/gpio.py
@@ -0,0 +1,86 @@
+# ========================================================================== #
+#                                                                            #
+#    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 Dict
+from typing import Set
+from typing import Optional
+
+from ... import aiotools
+from ... import gpio
+
+from ...yamlconf import Option
+
+from ...validators.basic import valid_float_f01
+
+from . import BaseUserGpioDriver
+
+
+# =====
+class Plugin(BaseUserGpioDriver):
+    def __init__(self, state_poll: float) -> None:  # pylint: disable=super-init-not-called
+        self.__state_poll = state_poll
+
+        self.__input_pins: Set[int] = set()
+        self.__output_pins: Dict[int, Optional[bool]] = {}
+
+        self.__reader: Optional[gpio.BatchReader] = None
+
+    @classmethod
+    def get_plugin_options(cls) -> Dict:
+        return {
+            "state_poll": Option(0.1, type=valid_float_f01),
+        }
+
+    def get_instance_name(self) -> str:
+        return "gpio"
+
+    def register_input(self, pin: int) -> None:
+        self.__input_pins.add(pin)
+
+    def register_output(self, pin: int, initial: Optional[bool]) -> None:
+        self.__output_pins[pin] = initial
+
+    def prepare(self, notifier: aiotools.AioNotifier) -> None:
+        assert self.__reader is None
+        self.__reader = gpio.BatchReader(
+            pins=set([
+                *map(gpio.set_input, self.__input_pins),
+                *[
+                    gpio.set_output(pin, initial)
+                    for (pin, initial) in self.__output_pins.items()
+                ],
+            ]),
+            interval=self.__state_poll,
+            notifier=notifier,
+        )
+
+    async def run(self) -> None:
+        assert self.__reader
+        await self.__reader.poll()
+
+    def read(self, pin: int) -> bool:
+        assert self.__reader
+        return self.__reader.get(pin)
+
+    def write(self, pin: int, state: bool) -> None:
+        assert self.__reader
+        gpio.write(pin, state)