RF power level control for MMDVM_HS compatible devices

borjam · Dec 30, 2017 · 1805a98 · 1805a98
1 parent 8445663
commit 1805a98
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Showing 6 changed files with 25 additions and 8 deletions.
diff --git a/Conf.cpp b/Conf.cpp
@@ -88,6 +88,7 @@ m_modemTXOffset(0),
 m_modemRXOffset(0),
 m_modemRXDCOffset(0),
 m_modemTXDCOffset(0),
+m_modemRFLevel(100.0F),
 m_modemRXLevel(50.0F),
 m_modemCWIdTXLevel(50.0F),
 m_modemDStarTXLevel(50.0F),
@@ -359,6 +360,8 @@ bool CConf::read()
 			m_modemRXDCOffset = ::atoi(value);
 		else if (::strcmp(key, "TXDCOffset") == 0)
 			m_modemTXDCOffset = ::atoi(value);
+		else if (::strcmp(key, "RFLevel") == 0)
+			m_modemRFLevel = float(::atof(value));
 		else if (::strcmp(key, "RXLevel") == 0)
 			m_modemRXLevel = float(::atof(value));
 		else if (::strcmp(key, "TXLevel") == 0)
@@ -815,6 +818,11 @@ int CConf::getModemTXDCOffset() const
 	return m_modemTXDCOffset;
 }
 
+float CConf::getModemRFLevel() const
+{
+	return m_modemRFLevel;
+}
+
 float CConf::getModemRXLevel() const
 {
 	return m_modemRXLevel;

diff --git a/Conf.h b/Conf.h
@@ -75,6 +75,7 @@ class CConf
   int          getModemRXOffset() const;
   int          getModemRXDCOffset() const;
   int          getModemTXDCOffset() const;
+  float        getModemRFLevel() const;
   float        getModemRXLevel() const;
   float        getModemCWIdTXLevel() const;
   float        getModemDStarTXLevel() const;
@@ -252,6 +253,7 @@ class CConf
   int          m_modemRXOffset;
   int          m_modemRXDCOffset;
   int          m_modemTXDCOffset;
+  float        m_modemRFLevel;
   float        m_modemRXLevel;
   float        m_modemCWIdTXLevel;
   float        m_modemDStarTXLevel;

diff --git a/MMDVM.ini b/MMDVM.ini
@@ -50,6 +50,7 @@ RXLevel=50
 TXLevel=50
 RXDCOffset=0
 TXDCOffset=0
+RFLevel=100
 # CWIdTXLevel=50
 # D-StarTXLevel=50
 # DMRTXLevel=50

diff --git a/MMDVMHost.cpp b/MMDVMHost.cpp
@@ -854,6 +854,7 @@ bool CMMDVMHost::createModem()
 	int txOffset              = m_conf.getModemTXOffset();
 	int rxDCOffset            = m_conf.getModemRXDCOffset();
 	int txDCOffset            = m_conf.getModemTXDCOffset();
+	float rfLevel             = m_conf.getModemRFLevel();
 
 	LogInfo("Modem Parameters");
 	LogInfo("    Port: %s", port.c_str());
@@ -865,6 +866,7 @@ bool CMMDVMHost::createModem()
 	LogInfo("    TX Offset: %dHz", txOffset);
 	LogInfo("    RX DC Offset: %d", rxDCOffset);
 	LogInfo("    TX DC Offset: %d", txDCOffset);
+	LogInfo("    RF Level: %.1f%%", rfLevel);
 	LogInfo("    DMR Delay: %u (%.1fms)", dmrDelay, float(dmrDelay) * 0.0416666F);
 	LogInfo("    RX Level: %.1f%%", rxLevel);
 	LogInfo("    CW Id TX Level: %.1f%%", cwIdTXLevel);
@@ -878,7 +880,7 @@ bool CMMDVMHost::createModem()
 	m_modem = new CModem(port, m_duplex, rxInvert, txInvert, pttInvert, txDelay, dmrDelay, trace, debug);
 	m_modem->setModeParams(m_dstarEnabled, m_dmrEnabled, m_ysfEnabled, m_p25Enabled);
 	m_modem->setLevels(rxLevel, cwIdTXLevel, dstarTXLevel, dmrTXLevel, ysfTXLevel, p25TXLevel);
-	m_modem->setRFParams(rxFrequency, rxOffset, txFrequency, txOffset, txDCOffset, rxDCOffset);
+	m_modem->setRFParams(rxFrequency, rxOffset, txFrequency, txOffset, txDCOffset, rxDCOffset, rfLevel);
 	m_modem->setDMRParams(colorCode);
 	m_modem->setYSFParams(lowDeviation);
 

diff --git a/Modem.cpp b/Modem.cpp
@@ -147,12 +147,13 @@ CModem::~CModem()
 	delete[] m_buffer;
 }
 
-void CModem::setRFParams(unsigned int rxFrequency, int rxOffset, unsigned int txFrequency, int txOffset, int txDCOffset, int rxDCOffset)
+void CModem::setRFParams(unsigned int rxFrequency, int rxOffset, unsigned int txFrequency, int txOffset, int txDCOffset, int rxDCOffset, float rfLevel)
 {
 	m_rxFrequency = rxFrequency + rxOffset;
 	m_txFrequency = txFrequency + txOffset;
 	m_txDCOffset  = txDCOffset;
 	m_rxDCOffset  = rxDCOffset;
+	m_rfLevel = rfLevel;
 }
 
 void CModem::setModeParams(bool dstarEnabled, bool dmrEnabled, bool ysfEnabled, bool p25Enabled)
@@ -1042,11 +1043,11 @@ bool CModem::setConfig()
 
 bool CModem::setFrequency()
 {
-	unsigned char buffer[15U];
+	unsigned char buffer[16U];
 
 	buffer[0U]  = MMDVM_FRAME_START;
 
-	buffer[1U]  = 12U;
+	buffer[1U]  = 13U;
 
 	buffer[2U]  = MMDVM_SET_FREQ;
 
@@ -1061,11 +1062,13 @@ bool CModem::setFrequency()
 	buffer[9U]  = (m_txFrequency >> 8) & 0xFFU;
 	buffer[10U] = (m_txFrequency >> 16) & 0xFFU;
 	buffer[11U] = (m_txFrequency >> 24) & 0xFFU;
+
+	buffer[12U]  = (unsigned char)(m_rfLevel * 2.55F + 0.5F);
 
-	// CUtils::dump(1U, "Written", buffer, 12U);
+	// CUtils::dump(1U, "Written", buffer, 13U);
 
-	int ret = m_serial.write(buffer, 12U);
-	if (ret != 12)
+	int ret = m_serial.write(buffer, 13U);
+	if (ret != 13)
 		return false;
 
 	unsigned int count = 0U;

diff --git a/Modem.h b/Modem.h
@@ -37,7 +37,7 @@ class CModem {
 	CModem(const std::string& port, bool duplex, bool rxInvert, bool txInvert, bool pttInvert, unsigned int txDelay, unsigned int dmrDelay, bool trace, bool debug);
 	~CModem();
 
-	void setRFParams(unsigned int rxFrequency, int rxOffset, unsigned int txFrequency, int txOffset, int txDCOffset, int rxDCOffset);
+	void setRFParams(unsigned int rxFrequency, int rxOffset, unsigned int txFrequency, int txOffset, int txDCOffset, int rxDCOffset, float rfLevel);
 	void setModeParams(bool dstarEnabled, bool dmrEnabled, bool ysfEnabled, bool p25Enabled);
 	void setLevels(float rxLevel, float cwIdTXLevel, float dstarTXLevel, float dmrTXLevel, float ysfTXLevel, float p25Enabled);
 	void setDMRParams(unsigned int colorCode);
@@ -103,6 +103,7 @@ class CModem {
 	float                      m_dmrTXLevel;
 	float                      m_ysfTXLevel;
 	float                      m_p25TXLevel;
+	float                      m_rfLevel;
 	bool                       m_trace;
 	bool                       m_debug;
 	unsigned int               m_rxFrequency;