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Merge branch 'M17_AX25_FM' into I2C

This commit is contained in:
Jonathan Naylor 2021-04-08 18:11:21 +01:00
parent 93115c8931 1ad20fd4a0
commit c70540a8ac
5 changed files with 139 additions and 131 deletions
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182
M17RX.cpp
View File

@ -104,13 +104,9 @@ void CM17RX::samples(const q15_t* samples, uint16_t* rssi, uint8_t length)
switch (m_state) {
case M17RXS_LINK_SETUP:
processLinkSetup(sample);
break;
case M17RXS_STREAM:
processStream(sample);
break;
case M17RXS_PACKET:
processPacket(sample);
processData(sample);
break;
default:
processNone(sample);
@ -131,9 +127,9 @@ void CM17RX::processNone(q15_t sample)
{
bool ret1 = correlateSync(M17_LINK_SETUP_SYNC_SYMBOLS, M17_LINK_SETUP_SYNC_SYMBOLS_VALUES, M17_LINK_SETUP_SYNC_BYTES, MAX_SYNC_SYMBOL_START_ERRS, MAX_SYNC_BIT_START_ERRS);
bool ret2 = correlateSync(M17_STREAM_SYNC_SYMBOLS, M17_STREAM_SYNC_SYMBOLS_VALUES, M17_STREAM_SYNC_BYTES, MAX_SYNC_SYMBOL_START_ERRS, MAX_SYNC_BIT_START_ERRS);
bool ret3 = correlateSync(M17_PACKET_SYNC_SYMBOLS, M17_PACKET_SYNC_SYMBOLS_VALUES, M17_PACKET_SYNC_BYTES, MAX_SYNC_SYMBOL_START_ERRS, MAX_SYNC_BIT_START_ERRS);
// bool ret3 = correlateSync(M17_PACKET_SYNC_SYMBOLS, M17_PACKET_SYNC_SYMBOLS_VALUES, M17_PACKET_SYNC_BYTES, MAX_SYNC_SYMBOL_START_ERRS, MAX_SYNC_BIT_START_ERRS);
if (ret1 || ret2 || ret3) {
if (ret1 || ret2 /* || ret3 */ ) {
// On the first sync, start the countdown to the state change
if (m_countdown == 0U) {
m_rssiAccum = 0U;
@ -148,7 +144,7 @@ void CM17RX::processNone(q15_t sample)
if (ret1) m_nextState = M17RXS_LINK_SETUP;
if (ret2) m_nextState = M17RXS_STREAM;
if (ret3) m_nextState = M17RXS_PACKET;
// if (ret3) m_nextState = M17RXS_PACKET;
}
}
@ -166,48 +162,32 @@ void CM17RX::processNone(q15_t sample)
m_state = m_nextState;
m_countdown = 0U;
}
}
void CM17RX::processLinkSetup(q15_t sample)
{
if (m_dataPtr == m_endPtr) {
m_minSyncPtr = m_syncPtr + M17_FRAME_LENGTH_SAMPLES - 1U;
if (m_minSyncPtr >= M17_FRAME_LENGTH_SAMPLES)
m_minSyncPtr -= M17_FRAME_LENGTH_SAMPLES;
m_maxSyncPtr = m_syncPtr + 1U;
if (m_maxSyncPtr >= M17_FRAME_LENGTH_SAMPLES)
m_maxSyncPtr -= M17_FRAME_LENGTH_SAMPLES;
calculateLevels(m_startPtr, M17_FRAME_LENGTH_SYMBOLS);
DEBUG4("M17RX: link setup sync found pos/centre/threshold", m_syncPtr, m_centreVal, m_thresholdVal);
uint8_t frame[M17_FRAME_LENGTH_BYTES + 3U];
samplesToBits(m_startPtr, M17_FRAME_LENGTH_SYMBOLS, frame, 8U, m_centreVal, m_thresholdVal);
m_lostCount--;
frame[0U] = 0x01U;
writeRSSIHeader(frame);
m_state = M17RXS_NONE;
m_endPtr = NOENDPTR;
m_averagePtr = NOAVEPTR;
m_countdown = 0U;
m_nextState = M17RXS_NONE;
m_maxCorr = 0;
}
}
void CM17RX::processStream(q15_t sample)
void CM17RX::processData(q15_t sample)
{
if (m_minSyncPtr < m_maxSyncPtr) {
if (m_dataPtr >= m_minSyncPtr && m_dataPtr <= m_maxSyncPtr)
correlateSync(M17_STREAM_SYNC_SYMBOLS, M17_STREAM_SYNC_SYMBOLS_VALUES, M17_STREAM_SYNC_BYTES, MAX_SYNC_SYMBOL_RUN_ERRS, MAX_SYNC_BIT_RUN_ERRS);
if (m_dataPtr >= m_minSyncPtr && m_dataPtr <= m_maxSyncPtr) {
bool ret1 = correlateSync(M17_LINK_SETUP_SYNC_SYMBOLS, M17_LINK_SETUP_SYNC_SYMBOLS_VALUES, M17_LINK_SETUP_SYNC_BYTES, MAX_SYNC_SYMBOL_RUN_ERRS, MAX_SYNC_BIT_RUN_ERRS);
bool ret2 = correlateSync(M17_STREAM_SYNC_SYMBOLS, M17_STREAM_SYNC_SYMBOLS_VALUES, M17_STREAM_SYNC_BYTES, MAX_SYNC_SYMBOL_RUN_ERRS, MAX_SYNC_BIT_RUN_ERRS);
// bool ret3 = correlateSync(M17_PACKET_SYNC_SYMBOLS, M17_PACKET_SYNC_SYMBOLS_VALUES, M17_PACKET_SYNC_BYTES, MAX_SYNC_SYMBOL_RUN_ERRS, MAX_SYNC_BIT_RUN_ERRS);
if (ret1) m_state = M17RXS_LINK_SETUP;
if (ret2) m_state = M17RXS_STREAM;
// if (ret3) m_state = M17RXS_PACKET;
}
} else {
if (m_dataPtr >= m_minSyncPtr || m_dataPtr <= m_maxSyncPtr)
correlateSync(M17_STREAM_SYNC_SYMBOLS, M17_STREAM_SYNC_SYMBOLS_VALUES, M17_STREAM_SYNC_BYTES, MAX_SYNC_SYMBOL_RUN_ERRS, MAX_SYNC_BIT_RUN_ERRS);
if (m_dataPtr >= m_minSyncPtr || m_dataPtr <= m_maxSyncPtr) {
bool ret1 = correlateSync(M17_LINK_SETUP_SYNC_SYMBOLS, M17_LINK_SETUP_SYNC_SYMBOLS_VALUES, M17_LINK_SETUP_SYNC_BYTES, MAX_SYNC_SYMBOL_RUN_ERRS, MAX_SYNC_BIT_RUN_ERRS);
bool ret2 = correlateSync(M17_STREAM_SYNC_SYMBOLS, M17_STREAM_SYNC_SYMBOLS_VALUES, M17_STREAM_SYNC_BYTES, MAX_SYNC_SYMBOL_RUN_ERRS, MAX_SYNC_BIT_RUN_ERRS);
// bool ret3 = correlateSync(M17_PACKET_SYNC_SYMBOLS, M17_PACKET_SYNC_SYMBOLS_VALUES, M17_PACKET_SYNC_BYTES, MAX_SYNC_SYMBOL_RUN_ERRS, MAX_SYNC_BIT_RUN_ERRS);
if (ret1) m_state = M17RXS_LINK_SETUP;
if (ret2) m_state = M17RXS_STREAM;
// if (ret3) m_state = M17RXS_PACKET;
}
}
if (m_dataPtr == m_endPtr) {
@ -224,7 +204,17 @@ void CM17RX::processStream(q15_t sample)
calculateLevels(m_startPtr, M17_FRAME_LENGTH_SYMBOLS);
switch (m_state) {
case M17RXS_LINK_SETUP:
DEBUG4("M17RX: link setup sync found pos/centre/threshold", m_syncPtr, m_centreVal, m_thresholdVal);
break;
case M17RXS_STREAM:
DEBUG4("M17RX: stream sync found pos/centre/threshold", m_syncPtr, m_centreVal, m_thresholdVal);
break;
case M17RXS_PACKET:
DEBUG4("M17RX: packet sync found pos/centre/threshold", m_syncPtr, m_centreVal, m_thresholdVal);
break;
}
uint8_t frame[M17_FRAME_LENGTH_BYTES + 3U];
samplesToBits(m_startPtr, M17_FRAME_LENGTH_SYMBOLS, frame, 8U, m_centreVal, m_thresholdVal);
@ -232,7 +222,7 @@ void CM17RX::processStream(q15_t sample)
// We've not seen a stream sync for too long, signal RXLOST and change to RX_NONE
m_lostCount--;
if (m_lostCount == 0U) {
DEBUG1("M17RX: stream sync timed out, lost lock");
DEBUG1("M17RX: sync timed out, lost lock");
io.setDecode(false);
io.setADCDetection(false);
@ -248,62 +238,21 @@ void CM17RX::processStream(q15_t sample)
} else {
frame[0U] = 0x00U;
frame[0U] |= m_lostCount == (MAX_SYNC_FRAMES - 1U) ? 0x01U : 0x00U;
writeRSSIData(frame);
switch (m_state) {
case M17RXS_LINK_SETUP:
writeRSSILinkSetup(frame);
break;
case M17RXS_STREAM:
writeRSSIStream(frame);
break;
case M17RXS_PACKET:
writeRSSIPacket(frame);
break;
}
m_maxCorr = 0;
}
}
}
void CM17RX::processPacket(q15_t sample)
{
if (m_minSyncPtr < m_maxSyncPtr) {
if (m_dataPtr >= m_minSyncPtr && m_dataPtr <= m_maxSyncPtr)
correlateSync(M17_PACKET_SYNC_SYMBOLS, M17_PACKET_SYNC_SYMBOLS_VALUES, M17_PACKET_SYNC_BYTES, MAX_SYNC_SYMBOL_RUN_ERRS, MAX_SYNC_BIT_RUN_ERRS);
} else {
if (m_dataPtr >= m_minSyncPtr || m_dataPtr <= m_maxSyncPtr)
correlateSync(M17_PACKET_SYNC_SYMBOLS, M17_PACKET_SYNC_SYMBOLS_VALUES, M17_PACKET_SYNC_BYTES, MAX_SYNC_SYMBOL_RUN_ERRS, MAX_SYNC_BIT_RUN_ERRS);
}
if (m_dataPtr == m_endPtr) {
// Only update the centre and threshold if they are from a good sync
if (m_lostCount == MAX_SYNC_FRAMES) {
m_minSyncPtr = m_syncPtr + M17_FRAME_LENGTH_SAMPLES - 1U;
if (m_minSyncPtr >= M17_FRAME_LENGTH_SAMPLES)
m_minSyncPtr -= M17_FRAME_LENGTH_SAMPLES;
m_maxSyncPtr = m_syncPtr + 1U;
if (m_maxSyncPtr >= M17_FRAME_LENGTH_SAMPLES)
m_maxSyncPtr -= M17_FRAME_LENGTH_SAMPLES;
}
calculateLevels(m_startPtr, M17_FRAME_LENGTH_SYMBOLS);
DEBUG4("M17RX: packet sync found pos/centre/threshold", m_syncPtr, m_centreVal, m_thresholdVal);
uint8_t frame[M17_FRAME_LENGTH_BYTES + 3U];
samplesToBits(m_startPtr, M17_FRAME_LENGTH_SYMBOLS, frame, 8U, m_centreVal, m_thresholdVal);
// We've not seen a packet sync for too long, signal RXLOST and change to RX_NONE
m_lostCount--;
if (m_lostCount == 0U) {
DEBUG1("M17RX: packet sync timed out, lost lock");
io.setDecode(false);
io.setADCDetection(false);
serial.writeM17Lost();
m_state = M17RXS_NONE;
m_endPtr = NOENDPTR;
m_averagePtr = NOAVEPTR;
m_countdown = 0U;
m_nextState = M17RXS_NONE;
m_maxCorr = 0;
} else {
frame[0U] = 0x02U;
frame[0U] |= m_lostCount == (MAX_SYNC_FRAMES - 1U) ? 0x01U : 0x00U;
writeRSSIData(frame);
m_maxCorr = 0;
}
}
}
@ -482,7 +431,7 @@ void CM17RX::samplesToBits(uint16_t start, uint16_t count, uint8_t* buffer, uint
}
}
void CM17RX::writeRSSIHeader(uint8_t* data)
void CM17RX::writeRSSILinkSetup(uint8_t* data)
{
#if defined(SEND_RSSI_DATA)
if (m_rssiCount > 0U) {
@ -491,19 +440,19 @@ void CM17RX::writeRSSIHeader(uint8_t* data)
data[121U] = (rssi >> 8) & 0xFFU;
data[122U] = (rssi >> 0) & 0xFFU;
serial.writeM17Header(data, M17_FRAME_LENGTH_BYTES + 3U);
serial.writeM17LinkSetup(data, M17_FRAME_LENGTH_BYTES + 3U);
} else {
serial.writeM17Header(data, M17_FRAME_LENGTH_BYTES + 1U);
serial.writeM17LinkSetup(data, M17_FRAME_LENGTH_BYTES + 1U);
}
#else
serial.writeM17Header(data, M17_FRAME_LENGTH_BYTES + 1U);
serial.writeM17LinkSetup(data, M17_FRAME_LENGTH_BYTES + 1U);
#endif
m_rssiAccum = 0U;
m_rssiCount = 0U;
}
void CM17RX::writeRSSIData(uint8_t* data)
void CM17RX::writeRSSIStream(uint8_t* data)
{
#if defined(SEND_RSSI_DATA)
if (m_rssiCount > 0U) {
@ -512,12 +461,33 @@ void CM17RX::writeRSSIData(uint8_t* data)
data[121U] = (rssi >> 8) & 0xFFU;
data[122U] = (rssi >> 0) & 0xFFU;
serial.writeM17Data(data, M17_FRAME_LENGTH_BYTES + 3U);
serial.writeM17Stream(data, M17_FRAME_LENGTH_BYTES + 3U);
} else {
serial.writeM17Data(data, M17_FRAME_LENGTH_BYTES + 1U);
serial.writeM17Stream(data, M17_FRAME_LENGTH_BYTES + 1U);
}
#else
serial.writeM17Data(data, M17_FRAME_LENGTH_BYTES + 1U);
serial.writeM17Stream(data, M17_FRAME_LENGTH_BYTES + 1U);
#endif
m_rssiAccum = 0U;
m_rssiCount = 0U;
}
void CM17RX::writeRSSIPacket(uint8_t* data)
{
#if defined(SEND_RSSI_DATA)
if (m_rssiCount > 0U) {
uint16_t rssi = m_rssiAccum / m_rssiCount;
data[121U] = (rssi >> 8) & 0xFFU;
data[122U] = (rssi >> 0) & 0xFFU;
serial.writeM17Packet(data, M17_FRAME_LENGTH_BYTES + 3U);
} else {
serial.writeM17Packet(data, M17_FRAME_LENGTH_BYTES + 1U);
}
#else
serial.writeM17Packet(data, M17_FRAME_LENGTH_BYTES + 1U);
#endif
m_rssiAccum = 0U;

9
M17RX.h
View File

@ -64,14 +64,13 @@ private:
uint16_t m_rssiCount;
void processNone(q15_t sample);
void processLinkSetup(q15_t sample);
void processStream(q15_t sample);
void processPacket(q15_t sample);
void processData(q15_t sample);
bool correlateSync(uint8_t syncSymbols, const int8_t* syncSymbolValues, const uint8_t* syncBytes, uint8_t maxSymbolErrs, uint8_t maxBitErrs);
void calculateLevels(uint16_t start, uint16_t count);
void samplesToBits(uint16_t start, uint16_t count, uint8_t* buffer, uint16_t offset, q15_t centre, q15_t threshold);
void writeRSSIHeader(uint8_t* data);
void writeRSSIData(uint8_t* data);
void writeRSSILinkSetup(uint8_t* data);
void writeRSSIStream(uint8_t* data);
void writeRSSIPacket(uint8_t* data);
};
#endif

62
SerialPort.cpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (C) 2013,2015-2020 by Jonathan Naylor G4KLX
* Copyright (C) 2013,2015-2021 by Jonathan Naylor G4KLX
* Copyright (C) 2016 by Colin Durbridge G4EML
*
* This program is free software; you can redistribute it and/or modify
@ -63,9 +63,10 @@ const uint8_t MMDVM_P25_LOST = 0x32U;
const uint8_t MMDVM_NXDN_DATA = 0x40U;
const uint8_t MMDVM_NXDN_LOST = 0x41U;
const uint8_t MMDVM_M17_HEADER = 0x45U;
const uint8_t MMDVM_M17_DATA = 0x46U;
const uint8_t MMDVM_M17_LOST = 0x47U;
const uint8_t MMDVM_M17_LINK_SETUP = 0x45U;
const uint8_t MMDVM_M17_STREAM = 0x46U;
const uint8_t MMDVM_M17_PACKET = 0x47U;
const uint8_t MMDVM_M17_LOST = 0x48U;
const uint8_t MMDVM_POCSAG_DATA = 0x50U;
@ -1239,7 +1240,7 @@ void CSerialPort::processMessage(uint8_t type, const uint8_t* buffer, uint16_t l
#endif
#if defined(MODE_M17)
case MMDVM_M17_HEADER:
case MMDVM_M17_LINK_SETUP:
if (m_m17Enable) {
if (m_modemState == STATE_IDLE || m_modemState == STATE_M17)
err = m17TX.writeData(buffer, length);
@ -1248,12 +1249,12 @@ void CSerialPort::processMessage(uint8_t type, const uint8_t* buffer, uint16_t l
if (m_modemState == STATE_IDLE)
setMode(STATE_M17);
} else {
DEBUG2("Received invalid M17 header", err);
DEBUG2("Received invalid M17 link setup data", err);
sendNAK(err);
}
break;
case MMDVM_M17_DATA:
case MMDVM_M17_STREAM:
if (m_m17Enable) {
if (m_modemState == STATE_IDLE || m_modemState == STATE_M17)
err = m17TX.writeData(buffer, length);
@ -1262,7 +1263,21 @@ void CSerialPort::processMessage(uint8_t type, const uint8_t* buffer, uint16_t l
if (m_modemState == STATE_IDLE)
setMode(STATE_M17);
} else {
DEBUG2("Received invalid M17 data", err);
DEBUG2("Received invalid M17 stream data", err);
sendNAK(err);
}
break;
case MMDVM_M17_PACKET:
if (m_m17Enable) {
if (m_modemState == STATE_IDLE || m_modemState == STATE_M17)
err = m17TX.writeData(buffer, length);
}
if (err == 0U) {
if (m_modemState == STATE_IDLE)
setMode(STATE_M17);
} else {
DEBUG2("Received invalid M17 packet data", err);
sendNAK(err);
}
break;
@ -1620,7 +1635,7 @@ void CSerialPort::writeNXDNLost()
#endif
#if defined(MODE_M17)
void CSerialPort::writeM17Header(const uint8_t* data, uint8_t length)
void CSerialPort::writeM17LinkSetup(const uint8_t* data, uint8_t length)
{
if (m_modemState != STATE_M17 && m_modemState != STATE_IDLE)
return;
@ -1632,7 +1647,7 @@ void CSerialPort::writeM17Header(const uint8_t* data, uint8_t length)
reply[0U] = MMDVM_FRAME_START;
reply[1U] = 0U;
reply[2U] = MMDVM_M17_HEADER;
reply[2U] = MMDVM_M17_LINK_SETUP;
uint8_t count = 3U;
for (uint8_t i = 0U; i < length; i++, count++)
@ -1643,7 +1658,7 @@ void CSerialPort::writeM17Header(const uint8_t* data, uint8_t length)
writeInt(1U, reply, count);
}
void CSerialPort::writeM17Data(const uint8_t* data, uint8_t length)
void CSerialPort::writeM17Stream(const uint8_t* data, uint8_t length)
{
if (m_modemState != STATE_M17 && m_modemState != STATE_IDLE)
return;
@ -1655,7 +1670,30 @@ void CSerialPort::writeM17Data(const uint8_t* data, uint8_t length)
reply[0U] = MMDVM_FRAME_START;
reply[1U] = 0U;
reply[2U] = MMDVM_M17_DATA;
reply[2U] = MMDVM_M17_STREAM;
uint8_t count = 3U;
for (uint8_t i = 0U; i < length; i++, count++)
reply[count] = data[i];
reply[1U] = count;
writeInt(1U, reply, count);
}
void CSerialPort::writeM17Packet(const uint8_t* data, uint8_t length)
{
if (m_modemState != STATE_M17 && m_modemState != STATE_IDLE)
return;
if (!m_m17Enable)
return;
uint8_t reply[130U];
reply[0U] = MMDVM_FRAME_START;
reply[1U] = 0U;
reply[2U] = MMDVM_M17_PACKET;
uint8_t count = 3U;
for (uint8_t i = 0U; i < length; i++, count++)

7
SerialPort.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (C) 2015,2016,2017,2018,2020 by Jonathan Naylor G4KLX
* Copyright (C) 2015,2016,2017,2018,2020,2021 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -65,8 +65,9 @@ public:
#endif
#if defined(MODE_M17)
void writeM17Header(const uint8_t* data, uint8_t length);
void writeM17Data(const uint8_t* data, uint8_t length);
void writeM17LinkSetup(const uint8_t* data, uint8_t length);
void writeM17Stream(const uint8_t* data, uint8_t length);
void writeM17Packet(const uint8_t* data, uint8_t length);
void writeM17Lost();
#endif

2
Version.h
View File

@ -19,6 +19,6 @@
#if !defined(VERSION_H)
#define VERSION_H
#define VERSION "20210307"
#define VERSION "20210407"
#endif