Add regeneration of Embedded LCs.

DMREmbeddedLC.cpp

@@ -150,11 +150,13 @@ void CDMREmbeddedLC::setData(const CDMRLC& lc)
 	}
 }
 
-unsigned int CDMREmbeddedLC::getData(unsigned char* data, unsigned int n) const
+unsigned char CDMREmbeddedLC::getData(unsigned char* data, unsigned char n) const
 {
 	assert(data != NULL);
 
-	if (n < 4U) {
+	if (n >= 1U && n < 5U) {
+		n--;
+
 		bool bits[40U];
 		::memset(bits, 0x00U, 40U * sizeof(bool));
 		::memcpy(bits + 4U, m_rawLC + n * 32U, 32U * sizeof(bool));
@@ -171,24 +173,23 @@ unsigned int CDMREmbeddedLC::getData(unsigned char* data, unsigned int n) const
 		data[16U] = bytes[2U];
 		data[17U] = bytes[3U];
 		data[18U] = (data[18U] & 0x0FU) | (bytes[4U] & 0xF0U);
+
+		switch (n) {
+		case 0U:
+			return 1U;
+		case 3U:
+			return 2U;
+		default:
+			return 3U;
+		}
 	} else {
 		data[14U] &= 0xF0U;
 		data[15U]  = 0x00U;
 		data[16U]  = 0x00U;
 		data[17U]  = 0x00U;
 		data[18U] &= 0x0FU;
-	}
 
-	switch (n) {
-		case 0U:
-			return 1U;
-		case 1U:
-		case 2U:
-			return 3U;
-		case 3U:
-			return 2U;
-		default:
-			return 0U;
+		return 0U;
 	}
 }
 

DMREmbeddedLC.h

@@ -37,7 +37,7 @@ public:
 	CDMRLC* addData(const unsigned char* data, unsigned char lcss);
 
 	void setData(const CDMRLC& lc);
-	unsigned int getData(unsigned char* data, unsigned int n) const;
+	unsigned char getData(unsigned char* data, unsigned char n) const;
 
 private:
 	bool*    m_rawLC;

DMRSlot.cpp

@@ -48,6 +48,7 @@ m_rfQueue(1000U, "DMR Slot"),
 m_rfState(RS_RF_LISTENING),
 m_netState(RS_NET_IDLE),
 m_rfEmbeddedLC(),
+m_netEmbeddedLC(),
 m_rfLC(NULL),
 m_netLC(NULL),
 m_rfDataHeader(),
@@ -121,6 +122,9 @@ void CDMRSlot::writeModem(unsigned char *data)
 				return;
 			}
 
+			// Store the LC for the embedded LC
+			m_rfEmbeddedLC.setData(*m_rfLC);
+
 			// Regenerate the LC data
 			fullLC.encode(*m_rfLC, data + 2U, DT_VOICE_LC_HEADER);
 
@@ -385,11 +389,15 @@ void CDMRSlot::writeModem(unsigned char *data)
 		if (m_rfState == RS_RF_AUDIO) {
 			m_rfN = data[1U] & 0x0FU;
 
+			// Regenerate the embedded LC
+			unsigned char lcss = m_rfEmbeddedLC.getData(data + 2U, m_rfN);
+
 			CDMREMB emb;
 			emb.putData(data + 2U);
 
 			// Regenerate the EMB
 			emb.setColorCode(m_colorCode);
+			emb.setLCSS(lcss);
 			emb.getData(data + 2U);
 
 			unsigned char fid = m_rfLC->getFID();
@@ -419,6 +427,9 @@ void CDMRSlot::writeModem(unsigned char *data)
 
 			m_rfLC = m_rfEmbeddedLC.addData(data + 2U, emb.getLCSS());
 			if (m_rfLC != NULL) {
+				// Store the LC for the embedded LC
+				m_rfEmbeddedLC.setData(*m_rfLC);
+
 				// Create a dummy start frame to replace the received frame
 				unsigned char start[DMR_FRAME_LENGTH_BYTES + 2U];
 
@@ -451,7 +462,11 @@ void CDMRSlot::writeModem(unsigned char *data)
 
 				m_rfN = data[1U] & 0x0FU;
 
+				// Regenerate the embedded LC
+				unsigned char lcss = m_rfEmbeddedLC.getData(data + 2U, m_rfN);
+
 				// Regenerate the EMB
+				emb.setLCSS(lcss);
 				emb.getData(data + 2U);
 
 				// Send the original audio frame out
@@ -612,6 +627,9 @@ void CDMRSlot::writeNetwork(const CDMRData& dmrData)
 			return;
 		}
 
+		// Store the LC for the embedded LC
+		m_netEmbeddedLC.setData(*m_netLC);
+
 		// Regenerate the LC data
 		fullLC.encode(*m_netLC, data + 2U, DT_VOICE_LC_HEADER);
 
@@ -844,9 +862,13 @@ void CDMRSlot::writeNetwork(const CDMRData& dmrData)
 
 		m_netBits += 141U;
 
+		// Regenerate the embedded LC
+		unsigned char lcss = m_netEmbeddedLC.getData(data + 2U, dmrData.getN());
+
 		// Change the color code in the EMB
 		m_lastEMB.putData(data + 2U);
 		m_lastEMB.setColorCode(m_colorCode);
+		m_lastEMB.setLCSS(lcss);
 		m_lastEMB.getData(data + 2U);
 
 		data[0U] = TAG_DATA;

DMRSlot.h

@@ -55,6 +55,7 @@ private:
 	RPT_RF_STATE               m_rfState;
 	RPT_NET_STATE              m_netState;
 	CDMREmbeddedLC             m_rfEmbeddedLC;
+	CDMREmbeddedLC             m_netEmbeddedLC;
 	CDMRLC*                    m_rfLC;
 	CDMRLC*                    m_netLC;
 	CDMRDataHeader             m_rfDataHeader;