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SerialPort.cpp
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/*
* Copyright (C) 2013,2015,2016,2018,2020,2021,2023 by Jonathan Naylor G4KLX
* Copyright (C) 2016 by Colin Durbridge G4EML
* Copyright (C) 2016,2017,2018,2019 by Andy Uribe CA6JAU
* Copyright (C) 2019 by Florian Wolters DF2ET
*
* 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
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "Config.h"
#include "Globals.h"
#include "version.h"
#include "SerialPort.h"
const uint8_t MMDVM_FRAME_START = 0xE0U;
const uint8_t MMDVM_GET_VERSION = 0x00U;
const uint8_t MMDVM_GET_STATUS = 0x01U;
const uint8_t MMDVM_SET_CONFIG = 0x02U;
const uint8_t MMDVM_SET_MODE = 0x03U;
const uint8_t MMDVM_SET_FREQ = 0x04U;
const uint8_t MMDVM_CAL_DATA = 0x08U;
const uint8_t MMDVM_RSSI_DATA = 0x09U;
const uint8_t MMDVM_SEND_CWID = 0x0AU;
const uint8_t MMDVM_DSTAR_HEADER = 0x10U;
const uint8_t MMDVM_DSTAR_DATA = 0x11U;
const uint8_t MMDVM_DSTAR_LOST = 0x12U;
const uint8_t MMDVM_DSTAR_EOT = 0x13U;
const uint8_t MMDVM_DMR_DATA1 = 0x18U;
const uint8_t MMDVM_DMR_LOST1 = 0x19U;
const uint8_t MMDVM_DMR_DATA2 = 0x1AU;
const uint8_t MMDVM_DMR_LOST2 = 0x1BU;
const uint8_t MMDVM_DMR_SHORTLC = 0x1CU;
const uint8_t MMDVM_DMR_START = 0x1DU;
const uint8_t MMDVM_DMR_ABORT = 0x1EU;
const uint8_t MMDVM_YSF_DATA = 0x20U;
const uint8_t MMDVM_YSF_LOST = 0x21U;
const uint8_t MMDVM_P25_HDR = 0x30U;
const uint8_t MMDVM_P25_LDU = 0x31U;
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_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_M17_EOT = 0x49U;
const uint8_t MMDVM_POCSAG_DATA = 0x50U;
const uint8_t MMDVM_ACK = 0x70U;
const uint8_t MMDVM_NAK = 0x7FU;
const uint8_t MMDVM_SERIAL = 0x80U;
const uint8_t MMDVM_TRANSPARENT = 0x90U;
const uint8_t MMDVM_QSO_INFO = 0x91U;
const uint8_t MMDVM_DEBUG1 = 0xF1U;
const uint8_t MMDVM_DEBUG2 = 0xF2U;
const uint8_t MMDVM_DEBUG3 = 0xF3U;
const uint8_t MMDVM_DEBUG4 = 0xF4U;
const uint8_t MMDVM_DEBUG5 = 0xF5U;
const uint8_t PROTOCOL_VERSION = 1U;
#if defined(ENABLE_UDID)
char UDID[] = "00000000000000000000000000000000";
#endif
// Parameters for batching serial data
const int MAX_SERIAL_DATA = 250;
const uint16_t MAX_SERIAL_COUNT = 100U;
CSerialPort::CSerialPort() :
m_buffer(),
m_ptr(0U),
m_len(0U),
m_lastSerialAvail(0),
m_lastSerialAvailCount(0U),
m_debug(false),
m_firstCal(false)
{
}
void CSerialPort::sendACK()
{
uint8_t reply[4U];
reply[0U] = MMDVM_FRAME_START;
reply[1U] = 4U;
reply[2U] = MMDVM_ACK;
reply[3U] = m_buffer[2U];
writeInt(1U, reply, 4);
}
void CSerialPort::sendNAK(uint8_t err)
{
uint8_t reply[5U];
reply[0U] = MMDVM_FRAME_START;
reply[1U] = 5U;
reply[2U] = MMDVM_NAK;
reply[3U] = m_buffer[2U];
reply[4U] = err;
writeInt(1U, reply, 5);
}
void CSerialPort::getStatus()
{
io.resetWatchdog();
uint8_t reply[15U];
// Send all sorts of interesting internal values
reply[0U] = MMDVM_FRAME_START;
reply[1U] = 14U;
reply[2U] = MMDVM_GET_STATUS;
reply[3U] = 0x00U;
if (m_dstarEnable)
reply[3U] |= 0x01U;
if (m_dmrEnable)
reply[3U] |= 0x02U;
if (m_ysfEnable)
reply[3U] |= 0x04U;
if (m_p25Enable)
reply[3U] |= 0x08U;
if (m_nxdnEnable)
reply[3U] |= 0x10U;
if (m_pocsagEnable)
reply[3U] |= 0x20U;
if (m_m17Enable)
reply[3U] |= 0x80U;
reply[4U] = uint8_t(m_modemState);
reply[5U] = m_tx ? 0x01U : 0x00U;
if (io.hasRXOverflow())
reply[5U] |= 0x04U;
if (io.hasTXOverflow())
reply[5U] |= 0x08U;
if (m_dstarEnable)
reply[6U] = dstarTX.getSpace();
else
reply[6U] = 0U;
if (m_dmrEnable) {
#if defined(DUPLEX)
if (m_duplex) {
reply[7U] = dmrTX.getSpace1();
reply[8U] = dmrTX.getSpace2();
} else {
reply[7U] = 10U;
reply[8U] = dmrDMOTX.getSpace();
}
#else
reply[7U] = 10U;
reply[8U] = dmrDMOTX.getSpace();
#endif
} else {
reply[7U] = 0U;
reply[8U] = 0U;
}
if (m_ysfEnable)
reply[9U] = ysfTX.getSpace();
else
reply[9U] = 0U;
if (m_p25Enable)
reply[10U] = p25TX.getSpace();
else
reply[10U] = 0U;
if (m_nxdnEnable)
reply[11U] = nxdnTX.getSpace();
else
reply[11U] = 0U;
if (m_pocsagEnable)
reply[12U] = pocsagTX.getSpace();
else
reply[12U] = 0U;
if (m_m17Enable)
reply[13U] = m17TX.getSpace();
else
reply[13U] = 0U;
writeInt(1U, reply, 14);
}
void CSerialPort::getVersion()
{
uint8_t reply[132U];
reply[0U] = MMDVM_FRAME_START;
reply[1U] = 0U;
reply[2U] = MMDVM_GET_VERSION;
reply[3U] = PROTOCOL_VERSION;
uint8_t count = 4U;
for (uint8_t i = 0U; HARDWARE[i] != 0x00U; i++, count++)
reply[count] = HARDWARE[i];
#if defined(ENABLE_UDID)
reply[count++] = '\0';
for (uint8_t i = 0U; UDID[i] != 0x00U; i++, count++)
reply[count] = UDID[i];
#endif
reply[1U] = count;
writeInt(1U, reply, count);
}
uint8_t CSerialPort::setConfig(const uint8_t* data, uint8_t length)
{
if (length < 13U)
return 4U;
bool ysfLoDev = (data[0U] & 0x08U) == 0x08U;
bool simplex = (data[0U] & 0x80U) == 0x80U;
m_debug = (data[0U] & 0x10U) == 0x10U;
bool dstarEnable = (data[1U] & 0x01U) == 0x01U;
bool dmrEnable = (data[1U] & 0x02U) == 0x02U;
bool ysfEnable = (data[1U] & 0x04U) == 0x04U;
bool p25Enable = (data[1U] & 0x08U) == 0x08U;
bool nxdnEnable = (data[1U] & 0x10U) == 0x10U;
bool pocsagEnable = (data[1U] & 0x20U) == 0x20U;
bool m17Enable = (data[1U] & 0x40U) == 0x40U;
uint8_t txDelay = data[2U];
if (txDelay > 50U)
return 4U;
MMDVM_STATE modemState = MMDVM_STATE(data[3U]);
if (modemState != STATE_IDLE && modemState != STATE_DSTAR && modemState != STATE_DMR && modemState != STATE_YSF && modemState != STATE_P25 && modemState != STATE_NXDN && modemState != STATE_M17 && modemState != STATE_POCSAG && modemState != STATE_DSTARCAL && modemState != STATE_DMRCAL && modemState != STATE_DMRDMO1K && modemState != STATE_INTCAL && modemState != STATE_RSSICAL && modemState != STATE_POCSAGCAL)
return 4U;
if (modemState == STATE_DSTAR && !dstarEnable)
return 4U;
if (modemState == STATE_DMR && !dmrEnable)
return 4U;
if (modemState == STATE_YSF && !ysfEnable)
return 4U;
if (modemState == STATE_P25 && !p25Enable)
return 4U;
if (modemState == STATE_NXDN && !nxdnEnable)
return 4U;
if (modemState == STATE_POCSAG && !pocsagEnable)
return 4U;
if (modemState == STATE_M17 && !m17Enable)
return 4U;
uint8_t colorCode = data[6U];
if (colorCode > 15U)
return 4U;
#if defined(DUPLEX)
uint8_t dmrDelay = data[7U];
#endif
m_cwIdTXLevel = data[5U] >> 2;
uint8_t dstarTXLevel = data[9U];
uint8_t dmrTXLevel = data[10U];
uint8_t ysfTXLevel = data[11U];
uint8_t p25TXLevel = data[12U];
uint8_t nxdnTXLevel = 128U;
uint8_t pocsagTXLevel = 128U;
uint8_t m17TXLevel = 128U;
if (length >= 16U)
nxdnTXLevel = data[15U];
if (length >= 18U)
pocsagTXLevel = data[17U];
if (length >= 22U)
m17TXLevel = data[21U];
io.setDeviations(dstarTXLevel, dmrTXLevel, ysfTXLevel, p25TXLevel, nxdnTXLevel, m17TXLevel, pocsagTXLevel, ysfLoDev);
m_dstarEnable = dstarEnable;
m_dmrEnable = dmrEnable;
m_ysfEnable = ysfEnable;
m_p25Enable = p25Enable;
m_nxdnEnable = nxdnEnable;
m_m17Enable = m17Enable;
m_pocsagEnable = pocsagEnable;
if (modemState == STATE_DMRCAL || modemState == STATE_DMRDMO1K || modemState == STATE_RSSICAL || modemState == STATE_INTCAL) {
m_dmrEnable = true;
m_modemState = STATE_DMR;
m_calState = modemState;
if (m_firstCal)
io.updateCal();
if (modemState == STATE_RSSICAL)
io.ifConf(STATE_DMR, true);
} else if (modemState == STATE_POCSAGCAL) {
m_pocsagEnable = true;
m_modemState = STATE_POCSAG;
m_calState = modemState;
if (m_firstCal)
io.updateCal();
}
else {
m_modemState = modemState;
m_calState = STATE_IDLE;
}
m_duplex = !simplex;
#if !defined(DUPLEX)
if (m_duplex && m_calState == STATE_IDLE && modemState != STATE_DSTARCAL) {
DEBUG1("Full duplex not supported with this firmware");
return 6U;
}
#elif defined(DUPLEX) && (defined(ZUMSPOT_ADF7021) || defined(LONESTAR_USB) || defined(SKYBRIDGE_HS))
if (io.isDualBand() && m_duplex && m_calState == STATE_IDLE && modemState != STATE_DSTARCAL) {
DEBUG1("Full duplex is not supported on this board");
return 6U;
}
#endif
dstarTX.setTXDelay(txDelay);
ysfTX.setTXDelay(txDelay);
p25TX.setTXDelay(txDelay);
nxdnTX.setTXDelay(txDelay);
m17TX.setTXDelay(txDelay);
pocsagTX.setTXDelay(txDelay);
dmrDMOTX.setTXDelay(txDelay);
#if defined(DUPLEX)
dmrTX.setColorCode(colorCode);
dmrRX.setColorCode(colorCode);
dmrRX.setDelay(dmrDelay);
dmrIdleRX.setColorCode(colorCode);
#endif
dmrDMORX.setColorCode(colorCode);
io.setLoDevYSF(ysfLoDev);
if (!m_firstCal || (modemState != STATE_DMRCAL && modemState != STATE_DMRDMO1K && modemState != STATE_RSSICAL && modemState != STATE_INTCAL && modemState != STATE_POCSAGCAL)) {
if(m_dstarEnable)
io.ifConf(STATE_DSTAR, true);
else if(m_dmrEnable)
io.ifConf(STATE_DMR, true);
else if(m_ysfEnable)
io.ifConf(STATE_YSF, true);
else if(m_p25Enable)
io.ifConf(STATE_P25, true);
else if(m_nxdnEnable)
io.ifConf(STATE_NXDN, true);
else if(m_m17Enable)
io.ifConf(STATE_M17, true);
else if(m_pocsagEnable)
io.ifConf(STATE_POCSAG, true);
}
io.start();
#if defined(ENABLE_DEBUG)
io.printConf();
#endif
if (modemState == STATE_DMRCAL || modemState == STATE_DMRDMO1K || modemState == STATE_RSSICAL || modemState == STATE_INTCAL || modemState == STATE_POCSAGCAL)
m_firstCal = true;
return 0U;
}
uint8_t CSerialPort::setMode(const uint8_t* data, uint8_t length)
{
if (length < 1U)
return 4U;
MMDVM_STATE modemState = MMDVM_STATE(data[0U]);
MMDVM_STATE tmpState;
if (modemState == m_modemState)
return 0U;
if (modemState != STATE_IDLE && modemState != STATE_DSTAR && modemState != STATE_DMR && modemState != STATE_YSF && modemState != STATE_P25 && modemState != STATE_NXDN && modemState != STATE_M17 && modemState != STATE_POCSAG && modemState != STATE_DSTARCAL && modemState != STATE_DMRCAL && modemState != STATE_DMRDMO1K && modemState != STATE_RSSICAL && modemState != STATE_INTCAL && modemState != STATE_POCSAGCAL)
return 4U;
if (modemState == STATE_DSTAR && !m_dstarEnable)
return 4U;
if (modemState == STATE_DMR && !m_dmrEnable)
return 4U;
if (modemState == STATE_YSF && !m_ysfEnable)
return 4U;
if (modemState == STATE_P25 && !m_p25Enable)
return 4U;
if (modemState == STATE_NXDN && !m_nxdnEnable)
return 4U;
if (modemState == STATE_M17 && !m_m17Enable)
return 4U;
if (modemState == STATE_POCSAG && !m_pocsagEnable)
return 4U;
if (modemState == STATE_DMRCAL || modemState == STATE_DMRDMO1K || modemState == STATE_RSSICAL || modemState == STATE_INTCAL) {
m_dmrEnable = true;
tmpState = STATE_DMR;
m_calState = modemState;
if (m_firstCal)
io.updateCal();
} else if (modemState == STATE_POCSAGCAL) {
m_pocsagEnable = true;
tmpState = STATE_POCSAG;
m_calState = modemState;
if (m_firstCal)
io.updateCal();
}
else {
tmpState = modemState;
m_calState = STATE_IDLE;
}
setMode(tmpState);
return 0U;
}
uint8_t CSerialPort::setFreq(const uint8_t* data, uint8_t length)
{
uint32_t freq_rx, freq_tx, pocsag_freq_tx;
uint8_t rf_power;
if (length < 9U)
return 4U;
// Very old MMDVMHost, set full power
if (length == 9U)
rf_power = 255U;
// Current MMDVMHost, set power from MMDVM.ini
if (length >= 10U)
rf_power = data[9U];
freq_rx = data[1U] << 0;
freq_rx |= data[2U] << 8;
freq_rx |= data[3U] << 16;
freq_rx |= data[4U] << 24;
freq_tx = data[5U] << 0;
freq_tx |= data[6U] << 8;
freq_tx |= data[7U] << 16;
freq_tx |= data[8U] << 24;
// New MMDVMHost, set POCSAG TX frequency
if (length >= 14U) {
pocsag_freq_tx = data[10U] << 0;
pocsag_freq_tx |= data[11U] << 8;
pocsag_freq_tx |= data[12U] << 16;
pocsag_freq_tx |= data[13U] << 24;
} else {
pocsag_freq_tx = freq_tx;
}
return io.setFreq(freq_rx, freq_tx, rf_power, pocsag_freq_tx);
}
void CSerialPort::setMode(MMDVM_STATE modemState)
{
switch (modemState) {
case STATE_DMR:
DEBUG1("Mode set to DMR");
dstarRX.reset();
ysfRX.reset();
p25RX.reset();
nxdnRX.reset();
m17RX.reset();
cwIdTX.reset();
break;
case STATE_DSTAR:
DEBUG1("Mode set to D-Star");
#if defined(DUPLEX)
dmrIdleRX.reset();
dmrRX.reset();
#endif
dmrDMORX.reset();
ysfRX.reset();
p25RX.reset();
nxdnRX.reset();
m17RX.reset();
cwIdTX.reset();
break;
case STATE_YSF:
DEBUG1("Mode set to System Fusion");
#if defined(DUPLEX)
dmrIdleRX.reset();
dmrRX.reset();
#endif
dmrDMORX.reset();
dstarRX.reset();
p25RX.reset();
nxdnRX.reset();
m17RX.reset();
cwIdTX.reset();
break;
case STATE_P25:
DEBUG1("Mode set to P25");
#if defined(DUPLEX)
dmrIdleRX.reset();
dmrRX.reset();
#endif
dmrDMORX.reset();
dstarRX.reset();
ysfRX.reset();
nxdnRX.reset();
m17RX.reset();
cwIdTX.reset();
break;
case STATE_NXDN:
DEBUG1("Mode set to NXDN");
#if defined(DUPLEX)
dmrIdleRX.reset();
dmrRX.reset();
#endif
dmrDMORX.reset();
dstarRX.reset();
ysfRX.reset();
p25RX.reset();
m17RX.reset();
cwIdTX.reset();
break;
case STATE_M17:
DEBUG1("Mode set to M17");
#if defined(DUPLEX)
dmrIdleRX.reset();
dmrRX.reset();
#endif
dmrDMORX.reset();
dstarRX.reset();
ysfRX.reset();
p25RX.reset();
nxdnRX.reset();
cwIdTX.reset();
break;
case STATE_POCSAG:
DEBUG1("Mode set to POCSAG");
#if defined(DUPLEX)
dmrIdleRX.reset();
dmrRX.reset();
#endif
dmrDMORX.reset();
dstarRX.reset();
ysfRX.reset();
p25RX.reset();
nxdnRX.reset();
m17RX.reset();
cwIdTX.reset();
break;
default:
DEBUG1("Mode set to Idle");
// STATE_IDLE
break;
}
m_modemState = modemState;
if ((modemState != STATE_IDLE) && (m_modemState_prev != modemState)) {
DEBUG1("setMode: configuring Hardware");
io.ifConf(modemState, true);
}
io.setMode(m_modemState);
}
void CSerialPort::start()
{
beginInt(1U, 115200);
#if defined(SERIAL_REPEATER) || defined(SERIAL_REPEATER_USART1)
beginInt(3U, SERIAL_REPEATER_BAUD);
#endif
}
void CSerialPort::process()
{
while (availableInt(1U)) {
uint8_t c = readInt(1U);
if (m_ptr == 0U) {
if (c == MMDVM_FRAME_START) {
// Handle the frame start correctly
m_buffer[0U] = c;
m_ptr = 1U;
m_len = 0U;
} else {
m_ptr = 0U;
m_len = 0U;
}
} else if (m_ptr == 1U) {
// Handle the frame length
m_len = m_buffer[m_ptr] = c;
m_ptr = 2U;
} else {
// Any other bytes are added to the buffer
m_buffer[m_ptr] = c;
m_ptr++;
// The full packet has been received, process it
if (m_ptr == m_len) {
uint8_t err = 2U;
switch (m_buffer[2U]) {
case MMDVM_GET_STATUS:
getStatus();
break;
case MMDVM_GET_VERSION:
getVersion();
break;
case MMDVM_SET_CONFIG:
err = setConfig(m_buffer + 3U, m_len - 3U);
if (err == 0U)
sendACK();
else
sendNAK(err);
break;
case MMDVM_SET_MODE:
err = setMode(m_buffer + 3U, m_len - 3U);
if (err == 0U)
sendACK();
else
sendNAK(err);
break;
case MMDVM_SET_FREQ:
err = setFreq(m_buffer + 3U, m_len - 3U);
if (err == 0U)
sendACK();
else
sendNAK(err);
break;
case MMDVM_CAL_DATA:
if (m_calState == STATE_DMRCAL || m_calState == STATE_DMRDMO1K) {
err = calDMR.write(m_buffer + 3U, m_len - 3U);
} else if (m_calState == STATE_POCSAGCAL) {
err = pocsagTX.setCal(m_buffer + 3U, m_len - 3U);
} else if (m_calState == STATE_RSSICAL || m_calState == STATE_INTCAL) {
err = 0U;
}
if (err == 0U) {
sendACK();
} else {
DEBUG2("Received invalid calibration data", err);
sendNAK(err);
}
break;
case MMDVM_SEND_CWID:
err = 5U;
if (m_modemState == STATE_IDLE) {
m_cwid_state = true;
io.ifConf(STATE_CWID, true);
err = cwIdTX.write(m_buffer + 3U, m_len - 3U);
}
if (err != 0U) {
DEBUG2("Invalid CW Id data", err);
sendNAK(err);
}
break;
case MMDVM_DSTAR_HEADER:
if (m_dstarEnable) {
if (m_modemState == STATE_IDLE || m_modemState == STATE_DSTAR)
err = dstarTX.writeHeader(m_buffer + 3U, m_len - 3U);
}
if (err == 0U) {
if (m_modemState == STATE_IDLE)
setMode(STATE_DSTAR);
} else {
DEBUG2("Received invalid D-Star header", err);
sendNAK(err);
}
break;
case MMDVM_DSTAR_DATA:
if (m_dstarEnable) {
if (m_modemState == STATE_IDLE || m_modemState == STATE_DSTAR)
err = dstarTX.writeData(m_buffer + 3U, m_len - 3U);
}
if (err == 0U) {
if (m_modemState == STATE_IDLE)
setMode(STATE_DSTAR);
} else {
DEBUG2("Received invalid D-Star data", err);
sendNAK(err);
}
break;
case MMDVM_DSTAR_EOT:
if (m_dstarEnable) {
if (m_modemState == STATE_IDLE || m_modemState == STATE_DSTAR)
err = dstarTX.writeEOT();
}
if (err == 0U) {
if (m_modemState == STATE_IDLE)
setMode(STATE_DSTAR);
} else {
DEBUG2("Received invalid D-Star EOT", err);
sendNAK(err);
}
break;
case MMDVM_DMR_DATA1:
#if defined(DUPLEX)
if (m_dmrEnable) {
if (m_modemState == STATE_IDLE || m_modemState == STATE_DMR) {
if (m_duplex)
err = dmrTX.writeData1(m_buffer + 3U, m_len - 3U);
}
}
if (err == 0U) {
if (m_modemState == STATE_IDLE)
setMode(STATE_DMR);
} else {
DEBUG2("Received invalid DMR data", err);
sendNAK(err);
}
#endif
break;
case MMDVM_DMR_DATA2:
if (m_dmrEnable) {
if (m_modemState == STATE_IDLE || m_modemState == STATE_DMR) {
#if defined(DUPLEX)
if (m_duplex)
err = dmrTX.writeData2(m_buffer + 3U, m_len - 3U);
else
err = dmrDMOTX.writeData(m_buffer + 3U, m_len - 3U);
#else
err = dmrDMOTX.writeData(m_buffer + 3U, m_len - 3U);
#endif
}
}
if (err == 0U) {
if (m_modemState == STATE_IDLE)
setMode(STATE_DMR);
} else {
DEBUG2("Received invalid DMR data", err);
sendNAK(err);
}
break;
case MMDVM_DMR_START:
#if defined(DUPLEX)
if (m_dmrEnable) {
err = 4U;
if (m_len == 4U) {
if (m_buffer[3U] == 0x01U && m_modemState == STATE_DMR) {
if (!m_tx)
dmrTX.setStart(true);
err = 0U;
} else if (m_buffer[3U] == 0x00U && m_modemState == STATE_DMR) {
if (m_tx)
dmrTX.setStart(false);
err = 0U;
}
}
}
if (err != 0U) {
DEBUG2("Received invalid DMR start", err);
sendNAK(err);
}
#endif
break;
case MMDVM_DMR_SHORTLC:
#if defined(DUPLEX)
if (m_dmrEnable)
err = dmrTX.writeShortLC(m_buffer + 3U, m_len - 3U);
if (err != 0U) {
DEBUG2("Received invalid DMR Short LC", err);
sendNAK(err);
}
#endif
break;
case MMDVM_DMR_ABORT:
#if defined(DUPLEX)
if (m_dmrEnable)
err = dmrTX.writeAbort(m_buffer + 3U, m_len - 3U);
if (err != 0U) {
DEBUG2("Received invalid DMR Abort", err);
sendNAK(err);
}
#endif
break;
case MMDVM_YSF_DATA:
if (m_ysfEnable) {
if (m_modemState == STATE_IDLE || m_modemState == STATE_YSF)
err = ysfTX.writeData(m_buffer + 3U, m_len - 3U);
}
if (err == 0U) {
if (m_modemState == STATE_IDLE)
setMode(STATE_YSF);
} else {
DEBUG2("Received invalid System Fusion data", err);
sendNAK(err);
}
break;
case MMDVM_P25_HDR:
if (m_p25Enable) {
if (m_modemState == STATE_IDLE || m_modemState == STATE_P25)
err = p25TX.writeData(m_buffer + 3U, m_len - 3U);
}
if (err == 0U) {
if (m_modemState == STATE_IDLE)
setMode(STATE_P25);
} else {
DEBUG2("Received invalid P25 header", err);
sendNAK(err);
}
break;
case MMDVM_P25_LDU:
if (m_p25Enable) {
if (m_modemState == STATE_IDLE || m_modemState == STATE_P25)
err = p25TX.writeData(m_buffer + 3U, m_len - 3U);
}
if (err == 0U) {
if (m_modemState == STATE_IDLE)
setMode(STATE_P25);
} else {
DEBUG2("Received invalid P25 LDU", err);
sendNAK(err);
}
break;
case MMDVM_NXDN_DATA:
if (m_nxdnEnable) {
if (m_modemState == STATE_IDLE || m_modemState == STATE_NXDN)
err = nxdnTX.writeData(m_buffer + 3U, m_len - 3U);
}
if (err == 0U) {
if (m_modemState == STATE_IDLE)
setMode(STATE_NXDN);
} else {
DEBUG2("Received invalid NXDN data", err);
sendNAK(err);
}
break;
case MMDVM_M17_LINK_SETUP:
if (m_m17Enable) {
if (m_modemState == STATE_IDLE || m_modemState == STATE_M17)
err = m17TX.writeData(m_buffer + 3U, m_len - 3U);
}
if (err == 0U) {
if (m_modemState == STATE_IDLE)
setMode(STATE_M17);
} else {
DEBUG2("Received invalid M17 link setup data", err);
sendNAK(err);
}
break;
case MMDVM_M17_STREAM:
if (m_m17Enable) {
if (m_modemState == STATE_IDLE || m_modemState == STATE_M17)
err = m17TX.writeData(m_buffer + 3U, m_len - 3U);
}
if (err == 0U) {
if (m_modemState == STATE_IDLE)
setMode(STATE_M17);
} else {
DEBUG2("Received invalid M17 stream data", err);
sendNAK(err);
}
break;
case MMDVM_M17_EOT:
if (m_m17Enable) {
if (m_modemState == STATE_IDLE || m_modemState == STATE_M17)
err = m17TX.writeData(m_buffer + 3U, m_len - 3U);
}
if (err == 0U) {
if (m_modemState == STATE_IDLE)
setMode(STATE_M17);
} else {
DEBUG2("Received invalid M17 EOT", err);
sendNAK(err);
}
break;
case MMDVM_POCSAG_DATA:
if (m_pocsagEnable) {
if (m_modemState == STATE_IDLE || m_modemState == STATE_POCSAG) {
m_pocsag_state = true;
err = pocsagTX.writeData(m_buffer + 3U, m_len - 3U);
}
}
if (err == 0U) {
if (m_modemState == STATE_IDLE)
setMode(STATE_POCSAG);
} else {
DEBUG2("Received invalid POCSAG data", err);
sendNAK(err);
}
break;
case MMDVM_TRANSPARENT:
case MMDVM_QSO_INFO:
// Do nothing on the MMDVM.
break;
#if defined(SERIAL_REPEATER) || defined(SERIAL_REPEATER_USART1)
case MMDVM_SERIAL:
writeInt(3U, m_buffer + 3U, m_len - 3U);
break;
#endif
default:
// Handle this, send a NAK back
sendNAK(1U);
break;
}
m_ptr = 0U;
m_len = 0U;
}
}
}
if (io.getWatchdog() >= 48000U) {
m_ptr = 0U;
m_len = 0U;
}
#if defined(SERIAL_REPEATER) || defined(SERIAL_REPEATER_USART1)
// Check for any incoming serial data from a device/screen on UART2
int serialAvail = availableInt(3U);
if ((serialAvail > 0 && serialAvail == m_lastSerialAvail && m_lastSerialAvailCount >= MAX_SERIAL_COUNT) || (serialAvail >= MAX_SERIAL_DATA)) {
uint8_t buffer[MAX_SERIAL_DATA];
for (int i = 0; i < serialAvail && i < MAX_SERIAL_DATA; i++) {
buffer[i] = readInt(3U);
m_lastSerialAvail--;
}
serial.writeSerialRpt(buffer, serialAvail - m_lastSerialAvail);
m_lastSerialAvailCount = 0U;
} else if (serialAvail > 0 && serialAvail == m_lastSerialAvail) {
m_lastSerialAvailCount++;
} else {
m_lastSerialAvail = serialAvail;
m_lastSerialAvailCount = 0U;
}
#endif
}
#if defined(SERIAL_REPEATER) || defined(SERIAL_REPEATER_USART1)
void CSerialPort::writeSerialRpt(const uint8_t* data, uint8_t length)
{
if (length == 0)
return;
uint8_t head[3];
head[0U] = MMDVM_FRAME_START;
head[1U] = length + 3;
head[2U] = MMDVM_SERIAL;
writeInt(1U, head, 3U);
writeInt(1U, data, length, true);