Plugin support for TESMART switch - tesmart.py (#47)

kvmd/plugins/ugpio/tesmart.py

@@ -0,0 +1,136 @@
+# ========================================================================== #
+#                                                                            #
+#    KVMD - The main Pi-KVM daemon.                                          #
+#                                                                            #
+#    Copyright (C) 2018-2021  Maxim Devaev <mdevaev@gmail.com>               #
+#                                                                            #
+#    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 re
+import functools
+import errno
+import time
+
+from typing import Tuple
+from typing import Dict
+from typing import Optional
+
+import serial
+import socket
+import binascii
+
+from ...logging import get_logger
+
+from ... import aiotools
+from ... import aiomulti
+from ... import aioproc
+
+from ...yamlconf import Option
+
+from ...validators.basic import valid_number
+from ...validators.basic import valid_float_f01
+from ...validators.os import valid_abs_path
+from ...validators.hw import valid_tty_speed
+from ...validators.net import valid_ip_or_host
+from ...validators.net import valid_port
+
+from . import BaseUserGpioDriver
+
+
+# =====
+class Plugin(BaseUserGpioDriver):  # pylint: disable=too-many-instance-attributes
+    def __init__(
+        self,
+        instance_name: str,
+        notifier: aiotools.AioNotifier,
+
+        tesmart_host: str,
+        tesmart_port: int,
+        max_ports: int,
+
+    ) -> None:
+
+        super().__init__(instance_name, notifier)
+
+        self.__tesmart_host = tesmart_host
+        self.__tesmart_port = tesmart_port
+        self.__max_ports = max_ports
+        self.__switch_state: Dict[int, bool] = {}
+        self.__tes_socket: socket
+
+    @classmethod
+    def get_plugin_options(cls) -> Dict:
+        return {
+            "tesmart_host":       Option("192.168.1.10", type=valid_ip_or_host),
+            "tesmart_port":        Option(5000, type=valid_port),
+            "max_ports":            Option(8,      type=functools.partial(valid_number, min=4, max=16)),
+        }
+
+    def register_input(self, pin: int, debounce: float) -> None:
+        _ = pin
+        _ = debounce
+
+    def register_output(self, port: int, initial: Optional[bool]) -> None:
+        if port <= self.__max_ports:
+            self.__switch_state[port] = initial
+
+    def prepare(self) -> None:
+        self.__tes_socket = socket.create_connection((self.__tesmart_host,self.__tesmart_port))
+        self.__update_state()
+
+    def __update_state(self) -> None:
+        for port in self.__switch_state:
+            self.__switch_state[port] = False
+        selport = self.__get_selected_port()
+        if selport in self.__switch_state:
+            self.__switch_state[selport] = True
+
+    def __get_selected_port(self) -> int:
+        retint = self.__send_tesmart_command("1000")
+        return retint+1
+
+    def __send_tesmart_command(self,tes_cmd: str) -> int:
+        full_cmd="AABB03"+tes_cmd+"EE"
+        binstr = binascii.unhexlify(full_cmd)
+        self.__tes_socket.sendall(binstr)
+        retstr=self.__tes_socket.recv(6)
+        return int(bytearray(retstr)[4])
+
+    async def run(self) -> None:
+        pass
+
+    def cleanup(self) -> None:
+        pass
+
+    async def read(self, pin: int) -> bool:
+        if pin in self.__switch_state:
+            return self.__switch_state[pin]
+        return False
+
+    async def write(self, pin: int, state: bool) -> None:
+        if state == False:
+            return
+        part_cmd="01"+format(pin,"#04x")[2:4]
+        writeret = self.__send_tesmart_command(part_cmd)
+        self.__update_state()
+
+    # =====
+
+    def __str__(self) -> str:
+        return f"tesmart({self._instance_name})"
+
+    __repr__ = __str__