Add support for Wistar smart curtain (0x4F6C) (#786)

* Add support for Wistar smart curtain (0x4F6C)

* Rename wsrc to wser

broadlink/__init__.py

@@ -7,7 +7,7 @@
 from .const import DEFAULT_BCAST_ADDR, DEFAULT_PORT, DEFAULT_TIMEOUT
 from .alarm import S1C
 from .climate import hysen
-from .cover import dooya, dooya2
+from .cover import dooya, dooya2, wser
 from .device import Device, ping, scan
 from .hub import s3
 from .light import lb1, lb2
@@ -183,6 +183,9 @@
     dooya2: {
         0x4F6E: ("DT360E-45/20", "Dooya"),
     },
+    wser: {
+        0x4F6C: ("WSER", "Wistar"),
+    },
     bg1: {
         0x51E3: ("BG800/BG900", "BG Electrical"),
     },

broadlink/cover.py

@@ -13,15 +13,16 @@ class dooya(Device):
     def _send(self, command: int, attribute: int = 0) -> int:
         """Send a packet to the device."""
         packet = bytearray(16)
-        packet[0] = 0x09
-        packet[2] = 0xBB
-        packet[3] = command
-        packet[4] = attribute
-        packet[9] = 0xFA
-        packet[10] = 0x44
-        response = self.send_packet(0x6A, packet)
-        e.check_error(response[0x22:0x24])
-        payload = self.decrypt(response[0x38:])
+        packet[0x00] = 0x09
+        packet[0x02] = 0xBB
+        packet[0x03] = command
+        packet[0x04] = attribute
+        packet[0x09] = 0xFA
+        packet[0x0A] = 0x44
+
+        resp = self.send_packet(0x6A, packet)
+        e.check_error(resp[0x22:0x24])
+        payload = self.decrypt(resp[0x38:])
         return payload[4]
 
     def open(self) -> int:
@@ -62,44 +63,117 @@ class dooya2(Device):
 
     TYPE = "DT360E-2"
 
-    def _send(self, command: int, attribute: int = 0) -> int:
-        """Send a packet to the device."""
-        checksum = 0xC0C4 + command + attribute & 0xFFFF
-        packet = bytearray(32)
-        packet[0] = 0x16
-        packet[2] = 0xA5
-        packet[3] = 0xA5
-        packet[4] = 0x5A
-        packet[5] = 0x5A
+    def _send(self, operation: int, data: bytes):
+        """Send a command to the device."""
+        packet = bytearray(14)
+        packet[0x02] = 0xA5
+        packet[0x03] = 0xA5
+        packet[0x04] = 0x5A
+        packet[0x05] = 0x5A
+        packet[0x08] = operation
+        packet[0x09] = 0x0B
+
+        data_len = len(data)
+        packet[0x0A] = data_len & 0xFF
+        packet[0x0B] = data_len >> 8
+
+        packet += bytes(data)
+
+        checksum = sum(packet, 0xBEAF) & 0xFFFF
         packet[6] = checksum & 0xFF
         packet[7] = checksum >> 8
-        packet[8] = 0x02
-        packet[9] = 0x0B
-        packet[10] = 0x0A
-        packet[15] = command
-        packet[16] = attribute
 
-        response = self.send_packet(0x6A, packet)
-        e.check_error(response[0x22:0x24])
-        payload = self.decrypt(response[0x38:])
-        return payload[0x11]
+        packet_len = len(packet) - 2
+        packet[0] = packet_len & 0xFF
+        packet[1] = packet_len >> 8
+
+        resp = self.send_packet(0x6a, packet)
+        e.check_error(resp[0x22:0x24])
+        payload = self.decrypt(resp[0x38:])
+        return payload
 
     def open(self) -> None:
         """Open the curtain."""
-        self._send(0x01)
+        self._send(2, [0x00, 0x01, 0x00])
 
     def close(self) -> None:
         """Close the curtain."""
-        self._send(0x02)
+        self._send(2, [0x00, 0x02, 0x00])
 
     def stop(self) -> None:
         """Stop the curtain."""
-        self._send(0x03)
+        self._send(2, [0x00, 0x03, 0x00])
 
     def get_percentage(self) -> int:
         """Return the position of the curtain."""
-        return self._send(0x06)
+        resp = self._send(1, [0x00, 0x06, 0x00])
+        return resp[0x11]
 
     def set_percentage(self, new_percentage: int) -> None:
         """Set the position of the curtain."""
-        self._send(0x09, new_percentage)
+        self._send(2, [0x00, 0x09, new_percentage])
+
+
+class wser(Device):
+    """Controls a Wistar curtain motor"""
+
+    TYPE = "WSER"
+
+    def _send(self, operation: int, data: bytes):
+        """Send a command to the device."""
+        packet = bytearray(14)
+        packet[0x02] = 0xA5
+        packet[0x03] = 0xA5
+        packet[0x04] = 0x5A
+        packet[0x05] = 0x5A
+        packet[0x08] = operation
+        packet[0x09] = 0x0B
+
+        data_len = len(data)
+        packet[0x0A] = data_len & 0xFF
+        packet[0x0B] = data_len >> 8
+
+        packet += bytes(data)
+
+        checksum = sum(packet, 0xBEAF) & 0xFFFF
+        packet[6] = checksum & 0xFF
+        packet[7] = checksum >> 8
+
+        packet_len = len(packet) - 2
+        packet[0] = packet_len & 0xFF
+        packet[1] = packet_len >> 8
+
+        resp = self.send_packet(0x6a, packet)
+        e.check_error(resp[0x22:0x24])
+        payload = self.decrypt(resp[0x38:])
+        return payload
+
+    def get_position(self) -> int:
+        """Return the position of the curtain."""
+        resp = self._send(1, [])
+        position = resp[0x0E]
+        return position
+
+    def open(self) -> int:
+        """Open the curtain."""
+        resp = self._send(2, [0x4a, 0x31, 0xa0])
+        position = resp[0x0E]
+        return position
+
+    def close(self) -> int:
+        """Close the curtain."""
+        resp = self._send(2, [0x61, 0x32, 0xa0])
+        position = resp[0x0E]
+        return position
+
+    def stop(self) -> int:
+        """Stop the curtain."""
+        resp = self._send(2, [0x4c, 0x73, 0xa0])
+        position = resp[0x0E]
+        return position
+
+    def set_position(self, position: int) -> int:
+        """Set the position of the curtain."""
+        resp = self._send(2, [position, 0x70, 0xa0])
+        position = resp[0x0E]
+        return position