expose configuring the FSC heartbeat interval; expose enabling TIA mode DFSI frames; correct FullRateVoice memory copy for additional data;

configs/config.example.yml

@@ -592,8 +592,12 @@ system:
             callTimeout: 200
             # Flag indicating when operating in V.24 UDP mode, the FSC protocol should be used to negotiate connection.
             fsc: false
+            # Sets the heartbeat interval for the FSC connection.
+            fscHeartbeat: 5
             # Flag indicating when operating in V.24 UDP mode, this instance should initiate the FSC protocol handshake.
             initiator: false
+            # Flag indicating DFSI frames should be formatted in TIA-102 standard instead of serial standard format.
+            dfsiTIAMode: false
 
         # Sets received the signal offset from DC.
         rxDCOffset: 0 # Valid values between -128 and 128

src/common/p25/dfsi/frames/FullRateVoice.cpp

@@ -145,7 +145,7 @@ void FullRateVoice::encode(uint8_t* data)
                 buffer[i] = Utils::bin2Hex(additionalData, offset);
             }
 
-            ::memcpy(data + 14U, buffer, ADDITIONAL_LENGTH);
+            ::memcpy(data + 14U, buffer, ADDITIONAL_LENGTH - 1U);
         }
     }
 }

src/host/Host.Config.cpp

@@ -463,7 +463,9 @@ bool Host::createModem()
     uint16_t jitter = dfsiParams["jitter"].as<uint16_t>(200U);
     uint16_t dfsiCallTimeout = dfsiParams["callTimeout"].as<uint16_t>(200U);
     bool useFSCForUDP = dfsiParams["fsc"].as<bool>(false);
+    uint32_t fscHeartbeat = dfsiParams["fscHeartbeat"].as<uint32_t>(5U);
     bool fscInitiator = dfsiParams["initiator"].as<bool>(false);
+    bool dfsiTIAMode = dfsiParams["dfsiTIAMode"].as<bool>(false);
 
     // clamp fifo sizes
     if (dmrFifoLength < DMR_TX_BUFFER_LEN) {
@@ -581,7 +583,9 @@ bool Host::createModem()
         LogInfo("    DFSI Jitter Size: %u ms", jitter);
         if (g_remoteModemMode) {
             LogInfo("    DFSI Use FSC: %s", useFSCForUDP ? "yes" : "no");
+            LogInfo("    DFSI FSC Heartbeat: %us", fscHeartbeat);
             LogInfo("    DFSI FSC Initiator: %s", fscInitiator ? "yes" : "no");
+            LogInfo("    DFSI FSC TIA Frames: %s", dfsiTIAMode ? "yes" : "no");
         }
     }
 
@@ -598,7 +602,8 @@ bool Host::createModem()
                 uint32_t id = networkConf["id"].as<uint32_t>(1000U);
                 if (useFSCForUDP) {
                     modemPort = new port::specialized::V24UDPPort(id, g_remoteAddress, g_remotePort + 1U, g_remotePort, true, fscInitiator, debug);
-                } else {
+                    ((modem::port::specialized::V24UDPPort*)modemPort)->setHeartbeatInterval(fscHeartbeat);
+               } else {
                     modemPort = new port::specialized::V24UDPPort(id, g_remoteAddress, g_remotePort, 0U, false, false, debug);
                 }
                 m_udpDFSIRemotePort = modemPort;
@@ -662,6 +667,7 @@ bool Host::createModem()
         m_modem = new ModemV24(modemPort, m_duplex, m_p25QueueSizeBytes, m_p25QueueSizeBytes, rtrt, diu, jitter,
             dumpModemStatus, trace, debug);
         ((ModemV24*)m_modem)->setCallTimeout(dfsiCallTimeout);
+        ((ModemV24*)m_modem)->setTIAFormat(dfsiTIAMode);
     } else {
         m_modem = new Modem(modemPort, m_duplex, rxInvert, txInvert, pttInvert, dcBlocker, cosLockout, fdmaPreamble, dmrRxDelay, p25CorrCount,
             m_dmrQueueSizeBytes, m_p25QueueSizeBytes, m_nxdnQueueSizeBytes, disableOFlowReset, ignoreModemConfigArea, dumpModemStatus, trace, debug);

src/host/modem/port/specialized/V24UDPPort.cpp

@@ -64,6 +64,7 @@ V24UDPPort::V24UDPPort(uint32_t peerId, const std::string& address, uint16_t mod
     m_fscInitiator(fscInitiator),
     m_timeoutTimer(1000U, 30U),
     m_reqConnectionTimer(1000U, 30U),
+    m_heartbeatInterval(5U),
     m_heartbeatTimer(1000U, 5U),
     m_random(),
     m_peerId(peerId),
@@ -115,6 +116,19 @@ V24UDPPort::~V24UDPPort()
         delete m_socket;
 }
 
+/* Helper to set and configure the heartbeat interval for FSC connections. */
+
+void V24UDPPort::setHeartbeatInterval(uint32_t interval)
+{
+    if (interval < 5U)
+        interval = 5U;
+    if (interval > 30U)
+        interval = 30U;
+
+    m_heartbeatInterval = interval;
+    m_heartbeatTimer = Timer(1000U, interval);
+}
+
 /* Updates the timer by the passed number of milliseconds. */
 
 void V24UDPPort::clock(uint32_t ms)
@@ -461,6 +475,7 @@ void* V24UDPPort::threadedCtrlNetworkRx(void* arg)
                         }
 
                         uint16_t vcPort = connMessage->getVCBasePort();
+                        network->m_heartbeatInterval = connMessage->getFSHeartbeatPeriod();
                         network->m_localPort = vcPort;
 
                         network->createVCPort(network->m_localPort);
@@ -468,10 +483,11 @@ void* V24UDPPort::threadedCtrlNetworkRx(void* arg)
 
                         network->m_fscState = CS_CONNECTED;
                         network->m_reqConnectionTimer.stop();
+                        network->m_heartbeatTimer = Timer(1000U, network->m_heartbeatInterval);
                         network->m_heartbeatTimer.start();
                         network->m_timeoutTimer.start();
 
-                        LogMessage(LOG_MODEM, "V.24 UDP, Incoming DFSI FSC Connection, vcBasePort = %u", network->m_localPort);
+                        LogMessage(LOG_MODEM, "V.24 UDP, Incoming DFSI FSC Connection, vcBasePort = %u, fsHBInterval = %u, hostHBInterval = %u", network->m_localPort, network->m_heartbeatInterval, connMessage->getHostHeartbeatPeriod());
 
                         // construct connect ACK response data
                         uint8_t respData[3U];
@@ -681,8 +697,8 @@ void V24UDPPort::writeConnect()
     LogMessage(LOG_MODEM, "V.24 UDP, Attempting DFSI FSC Connection, peerId = %u, vcBasePort = %u", m_peerId, m_localPort);
 
     FSCConnect connect = FSCConnect();
-    connect.setFSHeartbeatPeriod(5U);   // hardcoded?
+    connect.setFSHeartbeatPeriod(m_heartbeatInterval);
-    connect.setHostHeartbeatPeriod(5U); // hardcoded?
+    connect.setHostHeartbeatPeriod(m_heartbeatInterval);
     connect.setVCBasePort(m_localPort);
     connect.setVCSSRC(m_peerId);
 

src/host/modem/port/specialized/V24UDPPort.h

@@ -81,6 +81,11 @@ namespace modem
                  */
                 ~V24UDPPort() override;
 
+                /**
+                 * @brief Helper to set and configure the heartbeat interval for FSC connections.
+                 */
+                void setHeartbeatInterval(uint32_t interval);
+
                 /**
                  * @brief Updates the timer by the passed number of milliseconds.
                  * @param ms Number of milliseconds.
@@ -147,6 +152,7 @@ namespace modem
                 Timer m_timeoutTimer;
 
                 Timer m_reqConnectionTimer;
+                uint32_t m_heartbeatInterval;
                 Timer m_heartbeatTimer;
 
                 std::mt19937 m_random;