Add new data types to ADS integration (#125201)

* feat: Introduce new data types to ADS integration.

* refactor: ADS data unpacking based on PLC data type

* refactor: handle BOOL and STRING as special cases.

homeassistant/components/ads/__init__.py

@@ -29,18 +29,40 @@ DATA_ADS = "data_ads"
 # Supported Types
 ADSTYPE_BOOL = "bool"
 ADSTYPE_BYTE = "byte"
-ADSTYPE_DINT = "dint"
 ADSTYPE_INT = "int"
-ADSTYPE_UDINT = "udint"
 ADSTYPE_UINT = "uint"
+ADSTYPE_SINT = "sint"
+ADSTYPE_USINT = "usint"
+ADSTYPE_DINT = "dint"
+ADSTYPE_UDINT = "udint"
+ADSTYPE_WORD = "word"
+ADSTYPE_DWORD = "dword"
+ADSTYPE_LREAL = "lreal"
+ADSTYPE_REAL = "real"
+ADSTYPE_STRING = "string"
+ADSTYPE_TIME = "time"
+ADSTYPE_DATE = "date"
+ADSTYPE_DATE_AND_TIME = "dt"
+ADSTYPE_TOD = "tod"
 
 ADS_TYPEMAP = {
     ADSTYPE_BOOL: pyads.PLCTYPE_BOOL,
     ADSTYPE_BYTE: pyads.PLCTYPE_BYTE,
-    ADSTYPE_DINT: pyads.PLCTYPE_DINT,
     ADSTYPE_INT: pyads.PLCTYPE_INT,
-    ADSTYPE_UDINT: pyads.PLCTYPE_UDINT,
     ADSTYPE_UINT: pyads.PLCTYPE_UINT,
+    ADSTYPE_SINT: pyads.PLCTYPE_SINT,
+    ADSTYPE_USINT: pyads.PLCTYPE_USINT,
+    ADSTYPE_DINT: pyads.PLCTYPE_DINT,
+    ADSTYPE_UDINT: pyads.PLCTYPE_UDINT,
+    ADSTYPE_WORD: pyads.PLCTYPE_WORD,
+    ADSTYPE_DWORD: pyads.PLCTYPE_DWORD,
+    ADSTYPE_REAL: pyads.PLCTYPE_REAL,
+    ADSTYPE_LREAL: pyads.PLCTYPE_LREAL,
+    ADSTYPE_STRING: pyads.PLCTYPE_STRING,
+    ADSTYPE_TIME: pyads.PLCTYPE_TIME,
+    ADSTYPE_DATE: pyads.PLCTYPE_DATE,
+    ADSTYPE_DATE_AND_TIME: pyads.PLCTYPE_DT,
+    ADSTYPE_TOD: pyads.PLCTYPE_TOD,
 }
 
 CONF_ADS_FACTOR = "factor"
@@ -75,12 +97,23 @@ SCHEMA_SERVICE_WRITE_DATA_BY_NAME = vol.Schema(
     {
         vol.Required(CONF_ADS_TYPE): vol.In(
             [
+                ADSTYPE_BOOL,
+                ADSTYPE_BYTE,
                 ADSTYPE_INT,
                 ADSTYPE_UINT,
-                ADSTYPE_BYTE,
+                ADSTYPE_SINT,
-                ADSTYPE_BOOL,
+                ADSTYPE_USINT,
                 ADSTYPE_DINT,
                 ADSTYPE_UDINT,
+                ADSTYPE_WORD,
+                ADSTYPE_DWORD,
+                ADSTYPE_REAL,
+                ADSTYPE_LREAL,
+                ADSTYPE_STRING,
+                ADSTYPE_TIME,
+                ADSTYPE_DATE,
+                ADSTYPE_DATE_AND_TIME,
+                ADSTYPE_TOD,
             ]
         ),
         vol.Required(CONF_ADS_VALUE): vol.Coerce(int),
@@ -222,37 +255,53 @@ class AdsHub:
     def _device_notification_callback(self, notification, name):
         """Handle device notifications."""
         contents = notification.contents
-
         hnotify = int(contents.hNotification)
         _LOGGER.debug("Received notification %d", hnotify)
 
-        # get dynamically sized data array
+        # Get dynamically sized data array
         data_size = contents.cbSampleSize
-        data = (ctypes.c_ubyte * data_size).from_address(
+        data_address = (
             ctypes.addressof(contents)
             + pyads.structs.SAdsNotificationHeader.data.offset
         )
+        data = (ctypes.c_ubyte * data_size).from_address(data_address)
 
-        try:
+        # Acquire notification item
         with self._lock:
-                notification_item = self._notification_items[hnotify]
+            notification_item = self._notification_items.get(hnotify)
-        except KeyError:
+
+        if not notification_item:
             _LOGGER.error("Unknown device notification handle: %d", hnotify)
             return
 
-        # Parse data to desired datatype
+        # Data parsing based on PLC data type
-        if notification_item.plc_datatype == pyads.PLCTYPE_BOOL:
+        plc_datatype = notification_item.plc_datatype
+        unpack_formats = {
+            pyads.PLCTYPE_BYTE: "<b",
+            pyads.PLCTYPE_INT: "<h",
+            pyads.PLCTYPE_UINT: "<H",
+            pyads.PLCTYPE_SINT: "<b",
+            pyads.PLCTYPE_USINT: "<B",
+            pyads.PLCTYPE_DINT: "<i",
+            pyads.PLCTYPE_UDINT: "<I",
+            pyads.PLCTYPE_WORD: "<H",
+            pyads.PLCTYPE_DWORD: "<I",
+            pyads.PLCTYPE_LREAL: "<d",
+            pyads.PLCTYPE_REAL: "<f",
+            pyads.PLCTYPE_TOD: "<i",  # Treat as DINT
+            pyads.PLCTYPE_DATE: "<i",  # Treat as DINT
+            pyads.PLCTYPE_DT: "<i",  # Treat as DINT
+            pyads.PLCTYPE_TIME: "<i",  # Treat as DINT
+        }
+
+        if plc_datatype == pyads.PLCTYPE_BOOL:
             value = bool(struct.unpack("<?", bytearray(data))[0])
-        elif notification_item.plc_datatype == pyads.PLCTYPE_INT:
+        elif plc_datatype == pyads.PLCTYPE_STRING:
-            value = struct.unpack("<h", bytearray(data))[0]
+            value = (
-        elif notification_item.plc_datatype == pyads.PLCTYPE_BYTE:
+                bytearray(data).split(b"\x00", 1)[0].decode("utf-8", errors="ignore")
-            value = struct.unpack("<B", bytearray(data))[0]
+            )
-        elif notification_item.plc_datatype == pyads.PLCTYPE_UINT:
+        elif plc_datatype in unpack_formats:
-            value = struct.unpack("<H", bytearray(data))[0]
+            value = struct.unpack(unpack_formats[plc_datatype], bytearray(data))[0]
-        elif notification_item.plc_datatype == pyads.PLCTYPE_DINT:
-            value = struct.unpack("<i", bytearray(data))[0]
-        elif notification_item.plc_datatype == pyads.PLCTYPE_UDINT:
-            value = struct.unpack("<I", bytearray(data))[0]
         else:
             value = bytearray(data)
             _LOGGER.warning("No callback available for this datatype")