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MMDVM
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Add two more FM parameters.

This commit is contained in:
Jonathan Naylor 2020-04-25 15:17:11 +01:00
parent 868d33ebd2
commit 6ac6deba10
4 changed files with 33 additions and 15 deletions
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22
FM.cpp
View File

@ -38,14 +38,19 @@ m_ackDelayTimer(),
m_hangTimer(),
m_filterStage1( 724, 1448, 724, 32768, -37895, 21352),
m_filterStage2(32768, 0,-32768, 32768, -50339, 19052),
m_filterStage3(32768, -65536, 32768, 32768, -64075, 31460)
m_filterStage3(32768, -65536, 32768, 32768, -64075, 31460),
m_useCOS(true),
m_rxBoost(1U)
{
}
void CFM::samples(q15_t* samples, uint8_t length)
void CFM::samples(bool cos, q15_t* samples, uint8_t length)
{
uint8_t i = 0;
for (; i < length; i++) {
if (!m_useCOS)
cos = true;
q15_t currentSample = samples[i];//save to a local variable to avoid indirection on every access
CTCSSState ctcssState = m_ctcssRX.process(currentSample);
@ -56,26 +61,28 @@ void CFM::samples(q15_t* samples, uint8_t length)
} else if (CTCSS_READY(ctcssState) && m_modemState != STATE_FM) {
//we had enough samples for CTCSS and we are in some other mode than FM
bool validCTCSS = CTCSS_VALID(ctcssState);
stateMachine(validCTCSS, i + 1U);
stateMachine(validCTCSS && cos, i + 1U);
if (m_modemState != STATE_FM)
continue;
} else if (CTCSS_READY(ctcssState) && m_modemState == STATE_FM) {
//We had enough samples for CTCSS and we are in FM mode, trigger the state machine
bool validCTCSS = CTCSS_VALID(ctcssState);
stateMachine(validCTCSS, i + 1U);
stateMachine(validCTCSS && cos, i + 1U);
if (m_modemState != STATE_FM)
break;
} else if (CTCSS_NOT_READY(ctcssState) && m_modemState == STATE_FM && i == length - 1) {
//Not enough samples for CTCSS but we already are in FM, trigger the state machine
//but do not trigger the state machine on every single sample, save CPU!
bool validCTCSS = CTCSS_VALID(ctcssState);
stateMachine(validCTCSS, i + 1U);
stateMachine(validCTCSS && cos, i + 1U);
}
// Only let audio through when relaying audio
if (m_state != FS_RELAYING && m_state != FS_KERCHUNK)
currentSample = 0U;
currentSample *= m_rxBoost;
if (!m_callsign.isRunning())
currentSample += m_rfAck.getHighAudio();
@ -134,8 +141,11 @@ uint8_t CFM::setAck(const char* rfAck, uint8_t speed, uint16_t frequency, uint8_
return m_rfAck.setParams(rfAck, speed, frequency, level, level);
}
uint8_t CFM::setMisc(uint16_t timeout, uint8_t timeoutLevel, uint8_t ctcssFrequency, uint8_t ctcssThreshold, uint8_t ctcssLevel, uint8_t kerchunkTime, uint8_t hangTime)
uint8_t CFM::setMisc(uint16_t timeout, uint8_t timeoutLevel, uint8_t ctcssFrequency, uint8_t ctcssThreshold, uint8_t ctcssLevel, uint8_t kerchunkTime, uint8_t hangTime, bool useCOS, uint8_t rxBoost)
{
m_useCOS = useCOS;
m_rxBoost = q15_t(rxBoost);
m_timeoutTimer.setTimeout(timeout, 0U);
m_kerchunkTimer.setTimeout(kerchunkTime, 0U);
m_hangTimer.setTimeout(hangTime, 0U);

6
FM.h
View File

@ -45,7 +45,7 @@ class CFM {
public:
CFM();
void samples(q15_t* samples, uint8_t length);
void samples(bool cos, q15_t* samples, uint8_t length);
void process();
@ -53,7 +53,7 @@ public:
uint8_t setCallsign(const char* callsign, uint8_t speed, uint16_t frequency, uint8_t time, uint8_t holdoff, uint8_t highLevel, uint8_t lowLevel, bool callsignAtStart, bool callsignAtEnd);
uint8_t setAck(const char* rfAck, uint8_t speed, uint16_t frequency, uint8_t minTime, uint16_t delay, uint8_t level);
uint8_t setMisc(uint16_t timeout, uint8_t timeoutLevel, uint8_t ctcssFrequency, uint8_t ctcssThreshold, uint8_t ctcssLevel, uint8_t kerchunkTime, uint8_t hangTime);
uint8_t setMisc(uint16_t timeout, uint8_t timeoutLevel, uint8_t ctcssFrequency, uint8_t ctcssThreshold, uint8_t ctcssLevel, uint8_t kerchunkTime, uint8_t hangTime, bool useCOS, uint8_t rxBoost);
private:
CFMKeyer m_callsign;
@ -74,6 +74,8 @@ private:
CFMDirectFormI m_filterStage1;
CFMDirectFormI m_filterStage2;
CFMDirectFormI m_filterStage3;
bool m_useCOS;
q15_t m_rxBoost;
void stateMachine(bool validSignal, uint8_t length);
void listeningState(bool validSignal);

10
IO.cpp
View File

@ -357,10 +357,11 @@ void CIO::process()
}
if (m_fmEnable) {
bool cos = getCOSInt();
#if defined(USE_DCBLOCKER)
fm.samples(dcSamples, RX_BLOCK_SIZE);
fm.samples(cos, dcSamples, RX_BLOCK_SIZE);
#else
fm.samples(samples, RX_BLOCK_SIZE);
fm.samples(cos, samples, RX_BLOCK_SIZE);
#endif
}
} else if (m_modemState == STATE_DSTAR) {
@ -422,10 +423,11 @@ void CIO::process()
nxdnRX.samples(NXDNVals, rssi, RX_BLOCK_SIZE);
}
} else if (m_modemState == STATE_FM) {
bool cos = getCOSInt();
#if defined(USE_DCBLOCKER)
fm.samples(dcSamples, RX_BLOCK_SIZE);
fm.samples(cos, dcSamples, RX_BLOCK_SIZE);
#else
fm.samples(samples, RX_BLOCK_SIZE);
fm.samples(cos, samples, RX_BLOCK_SIZE);
#endif
} else if (m_modemState == STATE_DSTARCAL) {
q15_t GMSKVals[RX_BLOCK_SIZE];

10
SerialPort.cpp
View File

@ -101,7 +101,7 @@ const uint8_t MMDVM_DEBUG5 = 0xF5U;
#define HW_TYPE "MMDVM"
#endif
#define DESCRIPTION "20200424 (D-Star/DMR/System Fusion/P25/NXDN/POCSAG/FM)"
#define DESCRIPTION "20200425 (D-Star/DMR/System Fusion/P25/NXDN/POCSAG/FM)"
#if defined(GITVERSION)
#define concat(h, a, b, c) h " " a " " b " GitID #" c ""
@ -408,7 +408,7 @@ uint8_t CSerialPort::setFMParams2(const uint8_t* data, uint8_t length)
uint8_t CSerialPort::setFMParams3(const uint8_t* data, uint8_t length)
{
if (length < 7U)
if (length < 9U)
return 4U;
uint16_t timeout = data[0U] * 5U;
@ -421,7 +421,11 @@ uint8_t CSerialPort::setFMParams3(const uint8_t* data, uint8_t length)
uint8_t kerchunkTime = data[5U];
uint8_t hangTime = data[6U];
return fm.setMisc(timeout, timeoutLevel, ctcssFrequency, ctcssThreshold, ctcssLevel, kerchunkTime, hangTime);
bool useCOS = (data[7U] & 0x01U) == 0x01U;
uint8_t rxBoost = data[8U];
return fm.setMisc(timeout, timeoutLevel, ctcssFrequency, ctcssThreshold, ctcssLevel, kerchunkTime, hangTime, useCOS, rxBoost);
}
uint8_t CSerialPort::setMode(const uint8_t* data, uint8_t length)