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IO.cpp
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IO.cpp
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/*
* Copyright (C) 2015,2016,2017,2018,2020,2021 by Jonathan Naylor G4KLX
* Copyright (C) 2015 by Jim Mclaughlin KI6ZUM
* Copyright (C) 2016 by Colin Durbridge G4EML
*
* 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 "IO.h"
#if defined(USE_DCBLOCKER)
// Generated using [b, a] = butter(1, 0.001) in MATLAB
static q31_t DC_FILTER[] = {3367972, 0, 3367972, 0, 2140747704, 0}; // {b0, 0, b1, b2, -a1, -a2}
const uint32_t DC_FILTER_STAGES = 1U; // One Biquad stage
#endif
#if defined(MODE_DMR) || defined(MODE_YSF)
// Generated using rcosdesign(0.2, 8, 5, 'sqrt') in MATLAB
static q15_t RRC_0_2_FILTER[] = {401, 104, -340, -731, -847, -553, 112, 909, 1472, 1450, 683, -675, -2144, -3040, -2706, -770, 2667, 6995,
11237, 14331, 15464, 14331, 11237, 6995, 2667, -770, -2706, -3040, -2144, -675, 683, 1450, 1472, 909, 112,
-553, -847, -731, -340, 104, 401, 0};
const uint16_t RRC_0_2_FILTER_LEN = 42U;
#endif
#if defined(MODE_M17)
// Generated using rcosdesign(0.5, 8, 5, 'sqrt') in MATLAB
static q15_t RRC_0_5_FILTER[] = {-147, -88, 72, 220, 223, 46, -197, -285, -79, 334, 623, 390, -498, -1691, -2363, -1556, 1284, 5872, 11033,
15109, 16656, 15109, 11033, 5872, 1284, -1556, -2363, -1691, -498, 390, 623, 334, -79, -285, -197, 46, 223,
220, 72, -88, -147, 0};
const uint16_t RRC_0_5_FILTER_LEN = 42U;
#endif
#if defined(MODE_NXDN)
#if defined(USE_NXDN_BOXCAR)
// One symbol boxcar filter
static q15_t BOXCAR10_FILTER[] = {6000, 6000, 6000, 6000, 6000, 6000, 6000, 6000, 6000, 6000};
const uint16_t BOXCAR10_FILTER_LEN = 10U;
#else
// Generated using rcosdesign(0.2, 8, 10, 'sqrt') in MATLAB
static q15_t NXDN_0_2_FILTER[] = {284, 198, 73, -78, -240, -393, -517, -590, -599, -533, -391, -181, 79, 364, 643, 880, 1041, 1097, 1026, 819,
483, 39, -477, -1016, -1516, -1915, -2150, -2164, -1914, -1375, -545, 557, 1886, 3376, 4946, 6502, 7946, 9184,
10134, 10731, 10935, 10731, 10134, 9184, 7946, 6502, 4946, 3376, 1886, 557, -545, -1375, -1914, -2164, -2150,
-1915, -1516, -1016, -477, 39, 483, 819, 1026, 1097, 1041, 880, 643, 364, 79, -181, -391, -533, -599, -590,
-517, -393, -240, -78, 73, 198, 284, 0};
const uint16_t NXDN_0_2_FILTER_LEN = 82U;
static q15_t NXDN_ISINC_FILTER[] = {790, -1085, -1073, -553, 747, 2341, 3156, 2152, -893, -4915, -7834, -7536, -3102, 4441, 12354, 17394, 17394,
12354, 4441, -3102, -7536, -7834, -4915, -893, 2152, 3156, 2341, 747, -553, -1073, -1085, 790};
const uint16_t NXDN_ISINC_FILTER_LEN = 32U;
#endif
#endif
#if defined(MODE_DSTAR)
// Generated using gaussfir(0.5, 4, 5) in MATLAB
static q15_t GAUSSIAN_0_5_FILTER[] = {8, 104, 760, 3158, 7421, 9866, 7421, 3158, 760, 104, 8, 0};
const uint16_t GAUSSIAN_0_5_FILTER_LEN = 12U;
#endif
#if defined(MODE_P25)
// One symbol boxcar filter
static q15_t BOXCAR5_FILTER[] = {12000, 12000, 12000, 12000, 12000, 0};
const uint16_t BOXCAR5_FILTER_LEN = 6U;
#endif
const uint16_t DC_OFFSET = 0U; //2048U; The SDR transmits samples centered on zero
CIO::CIO() :
m_started(false),
m_thread(),
m_rxBuffer(RX_RINGBUFFER_SIZE),
m_txBuffer(TX_RINGBUFFER_SIZE),
m_rssiBuffer(RX_RINGBUFFER_SIZE),
#if defined(USE_DCBLOCKER)
m_dcFilter(),
m_dcState(),
#endif
#if defined(MODE_DSTAR)
m_gaussianFilter(),
m_gaussianState(),
#endif
#if defined(MODE_DMR)
m_rrc02Filter1(),
m_rrc02State1(),
#endif
#if defined(MODE_YSF)
m_rrc02Filter2(),
m_rrc02State2(),
#endif
#if defined(MODE_P25)
m_boxcar5Filter(),
m_boxcar5State(),
#endif
#if defined(MODE_NXDN)
#if defined(USE_NXDN_BOXCAR)
m_boxcar10Filter(),
m_boxcar10State(),
#else
m_nxdnFilter(),
m_nxdnISincFilter(),
m_nxdnState(),
m_nxdnISincState(),
#endif
#endif
#if defined(MODE_M17)
m_rrc05Filter(),
m_rrc05State(),
#endif
m_pttInvert(false),
m_rxLevel(128 * 128),
m_cwIdTXLevel(128 * 128),
m_dstarTXLevel(128 * 128),
m_dmrTXLevel(128 * 128),
m_ysfTXLevel(128 * 128),
m_p25TXLevel(128 * 128),
m_nxdnTXLevel(128 * 128),
m_m17TXLevel(128 * 128),
m_pocsagTXLevel(128 * 128),
m_fmTXLevel(128 * 128),
m_ax25TXLevel(128 * 128),
m_rxDCOffset(DC_OFFSET),
m_txDCOffset(DC_OFFSET),
m_useCOSAsLockout(false),
m_ledCount(0U),
m_ledValue(true),
m_detect(false),
m_adcOverflow(0U),
m_dacOverflow(0U),
m_watchdog(0U),
m_lockout(false),
m_channelNumber(0),
m_txDelayCounterStarted(false)
{
#if defined(USE_DCBLOCKER)
::memset(m_dcState, 0x00U, 4U * sizeof(q31_t));
m_dcFilter.numStages = DC_FILTER_STAGES;
m_dcFilter.pState = m_dcState;
m_dcFilter.pCoeffs = DC_FILTER;
m_dcFilter.postShift = 0;
#endif
#if defined(MODE_DSTAR)
::memset(m_gaussianState, 0x00U, 40U * sizeof(q15_t));
m_gaussianFilter.numTaps = GAUSSIAN_0_5_FILTER_LEN;
m_gaussianFilter.pState = m_gaussianState;
m_gaussianFilter.pCoeffs = GAUSSIAN_0_5_FILTER;
#endif
#if defined(MODE_DMR)
::memset(m_rrc02State1, 0x00U, 70U * sizeof(q15_t));
m_rrc02Filter1.numTaps = RRC_0_2_FILTER_LEN;
m_rrc02Filter1.pState = m_rrc02State1;
m_rrc02Filter1.pCoeffs = RRC_0_2_FILTER;
#endif
#if defined(MODE_YSF)
::memset(m_rrc02State2, 0x00U, 70U * sizeof(q15_t));
m_rrc02Filter2.numTaps = RRC_0_2_FILTER_LEN;
m_rrc02Filter2.pState = m_rrc02State2;
m_rrc02Filter2.pCoeffs = RRC_0_2_FILTER;
#endif
#if defined(MODE_P25)
::memset(m_boxcar5State, 0x00U, 30U * sizeof(q15_t));
m_boxcar5Filter.numTaps = BOXCAR5_FILTER_LEN;
m_boxcar5Filter.pState = m_boxcar5State;
m_boxcar5Filter.pCoeffs = BOXCAR5_FILTER;
#endif
#if defined(MODE_NXDN)
#if defined(USE_NXDN_BOXCAR)
::memset(m_boxcar10State, 0x00U, 40U * sizeof(q15_t));
m_boxcar10Filter.numTaps = BOXCAR10_FILTER_LEN;
m_boxcar10Filter.pState = m_boxcar10State;
m_boxcar10Filter.pCoeffs = BOXCAR10_FILTER;
#else
::memset(m_nxdnState, 0x00U, 110U * sizeof(q15_t));
::memset(m_nxdnISincState, 0x00U, 60U * sizeof(q15_t));
m_nxdnFilter.numTaps = NXDN_0_2_FILTER_LEN;
m_nxdnFilter.pState = m_nxdnState;
m_nxdnFilter.pCoeffs = NXDN_0_2_FILTER;
m_nxdnISincFilter.numTaps = NXDN_ISINC_FILTER_LEN;
m_nxdnISincFilter.pState = m_nxdnISincState;
m_nxdnISincFilter.pCoeffs = NXDN_ISINC_FILTER;
#endif
#endif
#if defined(MODE_M17)
::memset(m_rrc05State, 0x00U, 70U * sizeof(q15_t));
m_rrc05Filter.numTaps = RRC_0_5_FILTER_LEN;
m_rrc05Filter.pState = m_rrc05State;
m_rrc05Filter.pCoeffs = RRC_0_5_FILTER;
#endif
initInt();
selfTest();
setCOSInt(false);
}
void CIO::setCN(int cn)
{
DEBUG2("Using SDR channel %d", cn);
m_channelNumber = cn;
m_zmqcontext = zmq::context_t(1);
m_zmqsocket = zmq::socket_t(m_zmqcontext, ZMQ_REP);
m_zmqsocket.setsockopt(ZMQ_SNDHWM, 10);
m_zmqsocket.bind ("ipc:///tmp/mmdvm-tx" + std::to_string(cn) + ".ipc");
m_zmqcontextRX = zmq::context_t(1);
m_zmqsocketRX = zmq::socket_t(m_zmqcontextRX, ZMQ_PULL);
m_zmqsocketRX.setsockopt(ZMQ_RCVHWM, 10);
m_zmqsocketRX.connect ("ipc:///tmp/mmdvm-rx" + std::to_string(cn) + ".ipc");
// Start the TX and RX ZMQ threads
startInt();
}
void CIO::selfTest()
{
bool ledValue = false;
for (uint8_t i = 0U; i < 6U; i++) {
ledValue = !ledValue;
// We exclude PTT to avoid trigger the transmitter
setLEDInt(ledValue);
setCOSInt(ledValue);
#if defined(MODE_LEDS)
setDStarInt(ledValue);
setDMRInt(ledValue);
setYSFInt(ledValue);
setP25Int(ledValue);
#if !defined(USE_ALTERNATE_NXDN_LEDS)
setNXDNInt(ledValue);
#endif
#if !defined(USE_ALTERNATE_M17_LEDS)
setM17Int(ledValue);
#endif
#if !defined(USE_ALTERNATE_POCSAG_LEDS)
setPOCSAGInt(ledValue);
#endif
#if !defined(USE_ALTERNATE_FM_LEDS)
setFMInt(ledValue);
#endif
#endif
delayInt(250);
}
#if defined(MODE_LEDS)
setDStarInt(false);
setDMRInt(false);
setYSFInt(false);
setP25Int(false);
#if !defined(USE_ALTERNATE_NXDN_LEDS)
setNXDNInt(false);
#endif
#if !defined(USE_ALTERNATE_M17_LEDS)
setM17Int(false);
#endif
#if !defined(USE_ALTERNATE_POCSAG_LEDS)
setPOCSAGInt(false);
#endif
#if !defined(USE_ALTERNATE_FM_LEDS)
setFMInt(false);
#endif
setDStarInt(true);
delayInt(250);
setDMRInt(true);
delayInt(250);
setYSFInt(true);
delayInt(250);
setP25Int(true);
#if !defined(USE_ALTERNATE_NXDN_LEDS)
delayInt(250);
setNXDNInt(true);
#endif
#if !defined(USE_ALTERNATE_M17_LEDS)
delayInt(250);
setM17Int(true);
#endif
#if !defined(USE_ALTERNATE_POCSAG_LEDS)
delayInt(250);
setPOCSAGInt(true);
#endif
#if !defined(USE_ALTERNATE_FM_LEDS)
delayInt(250);
setFMInt(true);
delayInt(250);
setFMInt(false);
#endif
#if !defined(USE_ALTERNATE_POCSAG_LEDS)
delayInt(250);
setPOCSAGInt(false);
#endif
#if !defined(USE_ALTERNATE_M17_LEDS)
delayInt(250);
setM17Int(false);
#endif
#if !defined(USE_ALTERNATE_NXDN_LEDS)
delayInt(250);
setNXDNInt(false);
#endif
delayInt(250);
setP25Int(false);
delayInt(250);
setYSFInt(false);
delayInt(250);
setDMRInt(false);
delayInt(250);
setDStarInt(false);
#endif
}
void CIO::start()
{
if (m_started)
return;
m_started = true;
setMode(STATE_IDLE);
}
void CIO::process()
{
m_ledCount++;
if (m_started) {
// Two seconds timeout
if (m_watchdog >= 48000U) {
if (m_modemState == STATE_DSTAR || m_modemState == STATE_DMR || m_modemState == STATE_YSF || m_modemState == STATE_P25 || m_modemState == STATE_NXDN || m_modemState == STATE_M17 || m_modemState == STATE_POCSAG) {
#if defined(MODE_DMR)
if (m_modemState == STATE_DMR && m_tx)
dmrTX.setStart(false);
#endif
setMode(STATE_IDLE);
}
m_watchdog = 0U;
}
#if defined(CONSTANT_SRV_LED)
setLEDInt(true);
#else
if (m_ledCount >= 24000U) {
m_ledCount = 0U;
m_ledValue = !m_ledValue;
setLEDInt(m_ledValue);
}
#endif
} else {
if (m_ledCount >= 240000U) {
m_ledCount = 0U;
m_ledValue = !m_ledValue;
setLEDInt(m_ledValue);
}
return;
}
//if (m_useCOSAsLockout)
//m_lockout = getCOSInt();
::pthread_mutex_lock(&m_RXlock);
u_int16_t block_size = m_rxBuffer.getData();
::pthread_mutex_unlock(&m_RXlock);
if (block_size >= RX_BLOCK_SIZE) {
uint16_t num_blocks = block_size / RX_BLOCK_SIZE;
for(uint16_t block_no = 0;block_no < num_blocks; block_no++)
{
q15_t samples[RX_BLOCK_SIZE];
uint8_t control[RX_BLOCK_SIZE];
uint16_t rssi[RX_BLOCK_SIZE];
::pthread_mutex_lock(&m_RXlock);
for (uint16_t i = 0U; i < RX_BLOCK_SIZE; i++) {
TSample sample;
m_rxBuffer.get(sample);
control[i] = sample.control;
m_rssiBuffer.get(rssi[i]);
// Detect ADC overflow
//if (m_detect && (sample.sample == 0U || sample.sample == 4095U))
// m_adcOverflow++;
q15_t res1 = q15_t(sample.sample) - m_rxDCOffset;
q31_t res2 = res1 * m_rxLevel;
samples[i] = q15_t(__SSAT((res2 >> 15), 16));
}
::pthread_mutex_unlock(&m_RXlock);
//if (m_lockout)
// return;
#if defined(USE_DCBLOCKER)
q31_t q31Samples[RX_BLOCK_SIZE];
::arm_q15_to_q31(samples, q31Samples, RX_BLOCK_SIZE);
q31_t dcValues[RX_BLOCK_SIZE];
::arm_biquad_cascade_df1_q31(&m_dcFilter, q31Samples, dcValues, RX_BLOCK_SIZE);
q31_t dcLevel = 0;
for (uint8_t i = 0U; i < RX_BLOCK_SIZE; i++)
dcLevel += dcValues[i];
dcLevel /= RX_BLOCK_SIZE;
q15_t offset = q15_t(__SSAT((dcLevel >> 16), 16));;
q15_t dcSamples[RX_BLOCK_SIZE];
for (uint8_t i = 0U; i < RX_BLOCK_SIZE; i++)
dcSamples[i] = samples[i] - offset;
#endif
if (m_modemState == STATE_IDLE) {
#if defined(MODE_DSTAR)
if (m_dstarEnable) {
q15_t GMSKVals[RX_BLOCK_SIZE];
#if defined(USE_DCBLOCKER)
::arm_fir_fast_q15(&m_gaussianFilter, dcSamples, GMSKVals, RX_BLOCK_SIZE);
#else
::arm_fir_fast_q15(&m_gaussianFilter, samples, GMSKVals, RX_BLOCK_SIZE);
#endif
dstarRX.samples(GMSKVals, rssi, RX_BLOCK_SIZE);
}
#endif
#if defined(MODE_P25)
if (m_p25Enable) {
q15_t P25Vals[RX_BLOCK_SIZE];
#if defined(USE_DCBLOCKER)
::arm_fir_fast_q15(&m_boxcar5Filter, dcSamples, P25Vals, RX_BLOCK_SIZE);
#else
::arm_fir_fast_q15(&m_boxcar5Filter, samples, P25Vals, RX_BLOCK_SIZE);
#endif
p25RX.samples(P25Vals, rssi, RX_BLOCK_SIZE);
}
#endif
#if defined(MODE_NXDN)
if (m_nxdnEnable) {
q15_t NXDNVals[RX_BLOCK_SIZE];
#if defined(USE_NXDN_BOXCAR)
#if defined(USE_DCBLOCKER)
::arm_fir_fast_q15(&m_boxcar10Filter, dcSamples, NXDNVals, RX_BLOCK_SIZE);
#else
::arm_fir_fast_q15(&m_boxcar10Filter, samples, NXDNVals, RX_BLOCK_SIZE);
#endif
#else
q15_t NXDNValsTmp[RX_BLOCK_SIZE];
#if defined(USE_DCBLOCKER)
::arm_fir_fast_q15(&m_nxdnFilter, dcSamples, NXDNValsTmp, RX_BLOCK_SIZE);
#else
::arm_fir_fast_q15(&m_nxdnFilter, samples, NXDNValsTmp, RX_BLOCK_SIZE);
#endif
::arm_fir_fast_q15(&m_nxdnISincFilter, NXDNValsTmp, NXDNVals, RX_BLOCK_SIZE);
#endif
nxdnRX.samples(NXDNVals, rssi, RX_BLOCK_SIZE);
}
#endif
#if defined(MODE_DMR)
if (m_dmrEnable) {
q15_t DMRVals[RX_BLOCK_SIZE];
::arm_fir_fast_q15(&m_rrc02Filter1, samples, DMRVals, RX_BLOCK_SIZE);
if (m_duplex)
dmrIdleRX.samples(DMRVals, RX_BLOCK_SIZE);
else
dmrDMORX.samples(DMRVals, rssi, RX_BLOCK_SIZE);
}
#endif
#if defined(MODE_YSF)
if (m_ysfEnable) {
q15_t YSFVals[RX_BLOCK_SIZE];
#if defined(USE_DCBLOCKER)
::arm_fir_fast_q15(&m_rrc02Filter2, dcSamples, YSFVals, RX_BLOCK_SIZE);
#else
::arm_fir_fast_q15(&m_rrc02Filter2, samples, YSFVals, RX_BLOCK_SIZE);
#endif
ysfRX.samples(YSFVals, rssi, RX_BLOCK_SIZE);
}
#endif
#if defined(MODE_M17)
if (m_m17Enable) {
q15_t RRCVals[RX_BLOCK_SIZE];
#if defined(USE_DCBLOCKER)
::arm_fir_fast_q15(&m_rrc05Filter, dcSamples, RRCVals, RX_BLOCK_SIZE);
#else
::arm_fir_fast_q15(&m_rrc05Filter, samples, RRCVals, RX_BLOCK_SIZE);
#endif
m17RX.samples(RRCVals, rssi, RX_BLOCK_SIZE);
}
#endif
#if defined(MODE_FM)
if (m_fmEnable) {
bool cos = getCOSInt();
#if defined(USE_DCBLOCKER)
fm.samples(cos, dcSamples, RX_BLOCK_SIZE);
#else
fm.samples(cos, samples, RX_BLOCK_SIZE);
#endif
}
#endif
#if defined(MODE_FM) && defined(MODE_AX25)
if (m_ax25Enable) {
#if defined(USE_DCBLOCKER)
ax25RX.samples(dcSamples, RX_BLOCK_SIZE);
#else
ax25RX.samples(samples, RX_BLOCK_SIZE);
#endif
}
#endif
}
#if defined(MODE_DSTAR)
else if (m_modemState == STATE_DSTAR) {
if (m_dstarEnable) {
q15_t GMSKVals[RX_BLOCK_SIZE];
#if defined(USE_DCBLOCKER)
::arm_fir_fast_q15(&m_gaussianFilter, dcSamples, GMSKVals, RX_BLOCK_SIZE);
#else
::arm_fir_fast_q15(&m_gaussianFilter, samples, GMSKVals, RX_BLOCK_SIZE);
#endif
dstarRX.samples(GMSKVals, rssi, RX_BLOCK_SIZE);
}
}
#endif
#if defined(MODE_DMR)
else if (m_modemState == STATE_DMR) {
if (m_dmrEnable) {
q15_t DMRVals[RX_BLOCK_SIZE];
::arm_fir_fast_q15(&m_rrc02Filter1, samples, DMRVals, RX_BLOCK_SIZE);
if (m_duplex) {
// If the transmitter isn't on, use the DMR idle RX to detect the wakeup CSBKs
if (m_tx)
dmrRX.samples(DMRVals, rssi, control, RX_BLOCK_SIZE);
else
dmrIdleRX.samples(DMRVals, RX_BLOCK_SIZE);
} else {
dmrDMORX.samples(DMRVals, rssi, RX_BLOCK_SIZE);
}
}
}
#endif
#if defined(MODE_YSF)
else if (m_modemState == STATE_YSF) {
if (m_ysfEnable) {
q15_t YSFVals[RX_BLOCK_SIZE];
#if defined(USE_DCBLOCKER)
::arm_fir_fast_q15(&m_rrc02Filter2, dcSamples, YSFVals, RX_BLOCK_SIZE);
#else
::arm_fir_fast_q15(&m_rrc02Filter2, samples, YSFVals, RX_BLOCK_SIZE);
#endif
ysfRX.samples(YSFVals, rssi, RX_BLOCK_SIZE);
}
}
#endif
#if defined(MODE_P25)
else if (m_modemState == STATE_P25) {
if (m_p25Enable) {
q15_t P25Vals[RX_BLOCK_SIZE];
#if defined(USE_DCBLOCKER)
::arm_fir_fast_q15(&m_boxcar5Filter, dcSamples, P25Vals, RX_BLOCK_SIZE);
#else
::arm_fir_fast_q15(&m_boxcar5Filter, samples, P25Vals, RX_BLOCK_SIZE);
#endif
p25RX.samples(P25Vals, rssi, RX_BLOCK_SIZE);
}
}
#endif
#if defined(MODE_NXDN)
else if (m_modemState == STATE_NXDN) {
if (m_nxdnEnable) {
q15_t NXDNVals[RX_BLOCK_SIZE];
#if defined(USE_NXDN_BOXCAR)
#if defined(USE_DCBLOCKER)
::arm_fir_fast_q15(&m_boxcar10Filter, dcSamples, NXDNVals, RX_BLOCK_SIZE);
#else
::arm_fir_fast_q15(&m_boxcar10Filter, samples, NXDNVals, RX_BLOCK_SIZE);
#endif
#else
q15_t NXDNValsTmp[RX_BLOCK_SIZE];
#if defined(USE_DCBLOCKER)
::arm_fir_fast_q15(&m_nxdnFilter, dcSamples, NXDNValsTmp, RX_BLOCK_SIZE);
#else
::arm_fir_fast_q15(&m_nxdnFilter, samples, NXDNValsTmp, RX_BLOCK_SIZE);
#endif
::arm_fir_fast_q15(&m_nxdnISincFilter, NXDNValsTmp, NXDNVals, RX_BLOCK_SIZE);
#endif
nxdnRX.samples(NXDNVals, rssi, RX_BLOCK_SIZE);
}
}
#endif
#if defined(MODE_M17)
else if (m_modemState == STATE_M17) {
if (m_m17Enable) {
q15_t M17Vals[RX_BLOCK_SIZE];
#if defined(USE_DCBLOCKER)
::arm_fir_fast_q15(&m_rrc05Filter, dcSamples, M17Vals, RX_BLOCK_SIZE);
#else
::arm_fir_fast_q15(&m_rrc05Filter, samples, M17Vals, RX_BLOCK_SIZE);
#endif
m17RX.samples(M17Vals, rssi, RX_BLOCK_SIZE);
}
}
#endif
#if defined(MODE_FM)
else if (m_modemState == STATE_FM) {
bool cos = getCOSInt();
#if defined(USE_DCBLOCKER)
fm.samples(cos, dcSamples, RX_BLOCK_SIZE);
#if defined(MODE_AX25)
if (m_ax25Enable)
ax25RX.samples(dcSamples, RX_BLOCK_SIZE);
#endif
#else
fm.samples(cos, samples, RX_BLOCK_SIZE);
#if defined(MODE_AX25)
if (m_ax25Enable)
ax25RX.samples(samples, RX_BLOCK_SIZE);
#endif
#endif
}
#endif
#if defined(MODE_DSTAR)
else if (m_modemState == STATE_DSTARCAL) {
q15_t GMSKVals[RX_BLOCK_SIZE];
::arm_fir_fast_q15(&m_gaussianFilter, samples, GMSKVals, RX_BLOCK_SIZE);
calDStarRX.samples(GMSKVals, RX_BLOCK_SIZE);
}
#endif
else if (m_modemState == STATE_RSSICAL) {
calRSSI.samples(rssi, RX_BLOCK_SIZE);
}
}
}
}
void CIO::write(MMDVM_STATE mode, q15_t* samples, uint16_t length, const uint8_t* control)
{
if (!m_started)
return;
if (m_lockout)
return;
// Switch the transmitter on if needed
if (!m_tx) {
m_tx = true;
setPTTInt(m_pttInvert ? false : true);
DEBUG1("TX ON");
}
q15_t txLevel = 0;
switch (mode) {
case STATE_DSTAR:
txLevel = m_dstarTXLevel;
break;
case STATE_DMR:
txLevel = m_dmrTXLevel;
break;
case STATE_YSF:
txLevel = m_ysfTXLevel;
break;
case STATE_P25:
txLevel = m_p25TXLevel;
break;
case STATE_NXDN:
txLevel = m_nxdnTXLevel;
break;
case STATE_M17:
txLevel = m_m17TXLevel;
break;
case STATE_POCSAG:
txLevel = m_pocsagTXLevel;
break;
case STATE_FM:
txLevel = m_fmTXLevel;
break;
case STATE_AX25:
txLevel = m_ax25TXLevel;
break;
default:
txLevel = m_cwIdTXLevel;
break;
}
::pthread_mutex_lock(&m_TXlock);
for (uint16_t i = 0U; i < length; i++) {
q31_t res1 = samples[i] * txLevel;
q15_t res2 = q15_t(__SSAT((res1 >> 15), 16));
int16_t res3 = int16_t(res2 + m_txDCOffset);
// Detect DAC overflow
//if (res3 > 4095U)
//m_dacOverflow++;
if (control == NULL)
m_txBuffer.put({res3, MARK_NONE});
else
m_txBuffer.put({res3, control[i]});
}
::pthread_mutex_unlock(&m_TXlock);
}
uint16_t CIO::getSpace()
{
::pthread_mutex_lock(&m_TXlock);
u_int16_t space = m_txBuffer.getSpace();
::pthread_mutex_unlock(&m_TXlock);
return space;
}
void CIO::resetTXBuf()
{
TSample sample;
::pthread_mutex_lock(&m_TXlock);
while(m_txBuffer.get(sample))
{
}
::pthread_mutex_unlock(&m_TXlock);
}
void CIO::setDecode(bool dcd)
{
if (dcd != m_dcd)
setCOSInt(dcd ? true : false);
m_dcd = dcd;
}
void CIO::setADCDetection(bool detect)
{
m_detect = detect;
}
void CIO::setMode(MMDVM_STATE state)
{
if (state == m_modemState)
return;
#if defined(MODE_LEDS)
switch (m_modemState) {
case STATE_DSTAR: setDStarInt(false); break;
case STATE_DMR: setDMRInt(false); break;
case STATE_YSF: setYSFInt(false); break;
case STATE_P25: setP25Int(false); break;
case STATE_NXDN: setNXDNInt(false); break;
case STATE_M17: setM17Int(false); break;
case STATE_POCSAG: setPOCSAGInt(false); break;
case STATE_FM: setFMInt(false); break;
default: break;
}
switch (state) {
case STATE_DSTAR: setDStarInt(true); break;
case STATE_DMR: setDMRInt(true); break;
case STATE_YSF: setYSFInt(true); break;
case STATE_P25: setP25Int(true); break;
case STATE_NXDN: setNXDNInt(true); break;
case STATE_M17: setM17Int(true); break;
case STATE_POCSAG: setPOCSAGInt(true); break;
case STATE_FM: setFMInt(true); break;
default: break;
}
#endif
m_modemState = state;
}
void CIO::setParameters(bool rxInvert, bool txInvert, bool pttInvert, uint8_t rxLevel, uint8_t cwIdTXLevel, uint8_t dstarTXLevel, uint8_t dmrTXLevel, uint8_t ysfTXLevel, uint8_t p25TXLevel, uint8_t nxdnTXLevel, uint8_t m17TXLevel, uint8_t pocsagTXLevel, uint8_t fmTXLevel, uint8_t ax25TXLevel, int16_t txDCOffset, int16_t rxDCOffset, bool useCOSAsLockout)
{
m_pttInvert = pttInvert;
m_rxLevel = q15_t(rxLevel * 128);
m_cwIdTXLevel = q15_t(cwIdTXLevel * 128);
m_dstarTXLevel = q15_t(dstarTXLevel * 128);
m_dmrTXLevel = q15_t(dmrTXLevel * 128);
m_ysfTXLevel = q15_t(ysfTXLevel * 128);
m_p25TXLevel = q15_t(p25TXLevel * 128);
m_nxdnTXLevel = q15_t(nxdnTXLevel * 128);
m_m17TXLevel = q15_t(m17TXLevel * 128);
m_pocsagTXLevel = q15_t(pocsagTXLevel * 128);
m_fmTXLevel = q15_t(fmTXLevel * 128);
m_ax25TXLevel = q15_t(ax25TXLevel * 128);
m_rxDCOffset = DC_OFFSET + rxDCOffset;
m_txDCOffset = DC_OFFSET + txDCOffset;
m_useCOSAsLockout = useCOSAsLockout;
if (rxInvert)
m_rxLevel = -m_rxLevel;
if (txInvert) {
m_dstarTXLevel = -m_dstarTXLevel;
m_dmrTXLevel = -m_dmrTXLevel;
m_ysfTXLevel = -m_ysfTXLevel;
m_p25TXLevel = -m_p25TXLevel;
m_nxdnTXLevel = -m_nxdnTXLevel;
m_m17TXLevel = -m_m17TXLevel;
m_pocsagTXLevel = -m_pocsagTXLevel;
}
}
void CIO::getOverflow(bool& adcOverflow, bool& dacOverflow)
{
adcOverflow = m_adcOverflow > 0U;
dacOverflow = m_dacOverflow > 0U;
m_adcOverflow = 0U;
m_dacOverflow = 0U;
}
bool CIO::hasTXOverflow()
{
::pthread_mutex_lock(&m_TXlock);
bool has_overflowed = m_txBuffer.hasOverflowed();
::pthread_mutex_unlock(&m_TXlock);
return has_overflowed;
}
bool CIO::hasRXOverflow()
{
::pthread_mutex_lock(&m_RXlock);
bool has_overflowed = m_rxBuffer.hasOverflowed();
::pthread_mutex_unlock(&m_RXlock);
return has_overflowed;
}
void CIO::resetWatchdog()
{
m_watchdog = 0U;
}
uint32_t CIO::getWatchdog()
{
return m_watchdog;
}
bool CIO::hasLockout() const
{
return m_lockout;
}