viessmann: enable autoreconnect by default; close on P300 init failure

Author: Morg42

viessmann/plugin.yaml

@@ -74,6 +74,13 @@ parameters:
             en: 'If set, the loop guard only counts write attempts whose "caller" string starts with this prefix
                  (e.g. "MQTT"). Writes from all other callers always pass through freely.'
 
+    autoreconnect:
+        type: bool
+        default: true
+        description:
+            de: Verbindung nach Verbindungsabbruch automatisch wiederherstellen
+            en: Automatically reconnect after connection loss
+
     command_class:
         type: str
         default: SDPCommandViessmann

viessmann/protocol.py

@@ -225,6 +225,7 @@ def _send_init_on_send(self):
                     empty_replies = 0
 
             if not self._is_initialized:
+                self._close()
                 raise SDPProtocolError('P300 protocol initialization failed after 10 attempts')
             self.logger.debug('P300 communication initialized successfully')
             return True