identification: added single sensor LISSY support

server/src/hardware/protocol/loconet/iohandler/simulationiohandler.cpp

@@ -257,6 +257,7 @@ bool SimulationIOHandler::send(const Message& message)
     case OPC_MULTI_SENSE:
     case OPC_D4:
     case OPC_MULTI_SENSE_LONG:
+    case OPC_E4:
     case OPC_PEER_XFER:
     case OPC_SL_RD_DATA:
       assert(!hasResponse(message)); // no response

server/src/hardware/protocol/loconet/kernel.cpp

@@ -682,6 +682,20 @@ void Kernel::receive(const Message& message)
       }
       break;
     }
+    case OPC_E4:
+      EventLoop::call(
+        [this, lissy=static_cast<const Uhlenbrock::Lissy&>(message)]()
+        {
+          m_identificationController->identificationEvent(
+            IdentificationController::defaultIdentificationChannel,
+            lissy.sensorAddress(),
+            IdentificationEventType::Seen,
+            lissy.decoderAddress(),
+            Direction::Unknown,
+            lissy.category());
+        });
+      break;
+
     case OPC_PEER_XFER:
       if(isResponse)
       {

server/src/hardware/protocol/loconet/loconet.md

@@ -321,3 +321,20 @@ serial number = 1100008306
 
 version = 1.00
 ```
+
+## LISSY
+
+68610: single sensor lissy format:
+```
+2022-10-09 22:45:43.034066 loconet_1 D2002: RX: E4 [E4 08 00 00 01 00 03 11] // sensor_address=1    decoder_address=3    category=1
+2022-10-09 22:55:17.651995 loconet_1 D2002: RX: E4 [E4 08 03 00 01 00 63 72] // sensor_address=1    decoder_address=99   category=4
+2022-10-09 23:03:55.056175 loconet_1 D2002: RX: E4 [E4 08 02 00 01 0F 50 4F] // sensor_address=1    decoder_address=2000 category=3
+2022-10-09 23:09:03.150772 loconet_1 D2002: RX: E4 [E4 08 02 00 7F 0F 50 31] // sensor_address=127  decoder_address=2000 category=3
+2022-10-09 23:12:03.391446 loconet_1 D2002: RX: E4 [E4 08 02 1F 7F 0F 50 2E] // sensor_address=4095 decoder_address=2000 category=3
+                                                          ^^ ^^^^^ ^^^^^
+                                                          |    |     \ decoder address: [high 7] [low 7]
+                                                          |    |
+                                                          |    \ sensor address: [high 5] [low 7]
+                                                          |
+                                                          \ category: 0-3 => 1-4
+```

server/src/hardware/protocol/loconet/messages.cpp

@@ -107,6 +107,7 @@ void setSlot(Message& message, uint8_t slot)
     case OPC_SW_STATE:
     case OPC_SW_ACK:
     case OPC_LOCO_ADR:
+    case OPC_E4:
     case OPC_PEER_XFER:
     case OPC_SL_RD_DATA:
     case OPC_IMM_PACKET:
@@ -222,6 +223,7 @@ bool isValidResponse(const Message& request, const Message& response)
     case OPC_MULTI_SENSE:
     case OPC_D4:
     case OPC_MULTI_SENSE_LONG:
+    case OPC_E4:
     case OPC_PEER_XFER:
     case OPC_SL_RD_DATA:
       assert(!hasResponse(request));
@@ -379,6 +381,15 @@ std::string toString(const Message& message)
       }
       break;
     }
+    case OPC_E4:
+    {
+      const auto& lissy = static_cast<const Uhlenbrock::Lissy&>(message);
+      s.append(" LISSY:");
+      s.append(" sensorAddress=").append(std::to_string(lissy.sensorAddress()));
+      s.append(" decoderAddress=").append(std::to_string(lissy.decoderAddress()));
+      s.append(" category=").append(std::to_string(lissy.category()));
+      break;
+    }
     case OPC_PEER_XFER:
     {
       if(Uhlenbrock::LNCVReadResponse::check(message))

server/src/hardware/protocol/loconet/messages.hpp

@@ -1769,6 +1769,44 @@ namespace Uhlenbrock
   };
   static_assert(sizeof(LNCVStop) == 15);
 
+  /**
+   * \}
+   * \group lissy LISSY
+   * \{
+   */
+
+  struct Lissy : Message
+  {
+    uint8_t len = 8;
+    uint8_t data1 = 0;
+    uint8_t sensorAddressHigh = 0;
+    uint8_t sensorAddressLow = 0;
+    uint8_t decoderAddressHigh = 0;
+    uint8_t decoderAddressLow = 0;
+    uint8_t checksum = 0;
+
+    Lissy()
+      : Message(OPC_E4)
+    {
+    }
+
+    uint16_t sensorAddress() const
+    {
+      return static_cast<uint16_t>(sensorAddressHigh & 0x1F) << 7 | sensorAddressLow;
+    }
+
+    uint16_t decoderAddress() const
+    {
+      return static_cast<uint16_t>(decoderAddressHigh) << 7 | decoderAddressLow;
+    }
+
+    uint8_t category() const
+    {
+      return (data1 & 0x03) + 1;
+    }
+  };
+  static_assert(sizeof(Lissy) == 8);
+
   /**
    * \}
    */

server/src/hardware/protocol/loconet/opcode.hpp

@@ -67,6 +67,7 @@ enum OpCode : uint8_t
 
   // variable byte message opcodes:
   OPC_MULTI_SENSE_LONG = 0XE0, // based on reverse engineering, see loconet.md
+  OPC_E4 = 0xE4, // based on reverse engineering, see loconet.md
   OPC_PEER_XFER = 0xE5,
   OPC_SL_RD_DATA = 0xE7,
   OPC_IMM_PACKET = 0xED,
@@ -101,6 +102,7 @@ constexpr std::string_view toString(OpCode value)
     case OPC_MULTI_SENSE: return "OPC_MULTI_SENSE";
     case OPC_D4: return "OPC_D4";
     case OPC_MULTI_SENSE_LONG: return "OPC_MULTI_SENSE_LONG";
+    case OPC_E4: return "OPC_E4";
     case OPC_PEER_XFER: return "OPC_PEER_XFER";
     case OPC_SL_RD_DATA: return "OPC_SL_RD_DATA";
     case OPC_IMM_PACKET: return "OPC_IMM_PACKET";