mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-04 16:01:14 -05:00
660 lines
21 KiB
C++
660 lines
21 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2020 Edouard Griffiths, F4EXB //
|
|
// //
|
|
// 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 as version 3 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 V3 for more details. //
|
|
// //
|
|
// You should have received a copy of the GNU General Public License //
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
|
|
///////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include "dsp/samplemififo.h"
|
|
#include "dsp/samplemofifo.h"
|
|
|
|
#include "metismisoudphandler.h"
|
|
|
|
MESSAGE_CLASS_DEFINITION(MetisMISOUDPHandler::MsgStartStop, Message)
|
|
|
|
MetisMISOUDPHandler::MetisMISOUDPHandler(SampleMIFifo *sampleMIFifo, SampleMOFifo *sampleMOFifo, DeviceAPI *deviceAPI) :
|
|
m_deviceAPI(deviceAPI),
|
|
m_socket(nullptr),
|
|
m_metisAddress(QHostAddress::LocalHost),
|
|
m_metisPort(9090),
|
|
m_running(false),
|
|
m_dataConnected(false),
|
|
m_sampleMIFifo(sampleMIFifo),
|
|
m_sampleMOFifo(sampleMOFifo),
|
|
m_sampleCount(0),
|
|
m_sampleTxCount(0),
|
|
m_messageQueueToGUI(nullptr),
|
|
m_mutex(QMutex::Recursive),
|
|
m_commandBase(0),
|
|
m_receiveSequence(0),
|
|
m_receiveSequenceError(0)
|
|
{
|
|
setNbReceivers(m_settings.m_nbReceivers);
|
|
|
|
for (unsigned int i = 0; i < MetisMISOSettings::m_maxReceivers; i++) {
|
|
m_convertBuffer[i].resize(1024, Sample{0,0});
|
|
}
|
|
|
|
connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleMessages()));
|
|
}
|
|
|
|
MetisMISOUDPHandler::~MetisMISOUDPHandler()
|
|
{
|
|
stop();
|
|
}
|
|
|
|
void MetisMISOUDPHandler::start()
|
|
{
|
|
qDebug("MetisMISOUDPHandler::start");
|
|
|
|
m_rxFrame = 0;
|
|
m_txFrame = 0;
|
|
m_sendSequence = -1;
|
|
m_offset = 8;
|
|
m_receiveSequence = 0;
|
|
|
|
if (m_running) {
|
|
return;
|
|
}
|
|
|
|
if (!m_dataConnected)
|
|
{
|
|
if (m_socket.bind(QHostAddress::AnyIPv4, 10001, QUdpSocket::ShareAddress))
|
|
{
|
|
qDebug("MetisMISOUDPHandler::start: bind host socket OK");
|
|
connect(&m_socket, SIGNAL(readyRead()), this, SLOT(dataReadyRead()));
|
|
m_dataConnected = true;
|
|
}
|
|
else
|
|
{
|
|
qWarning("MetisMISOUDPHandler::start: cannot bind host socket");
|
|
m_dataConnected = false;
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Start Metis
|
|
unsigned char buffer[64];
|
|
|
|
buffer[0] = (unsigned char) 0xEF;
|
|
buffer[1] = (unsigned char) 0XFE;
|
|
buffer[2] = (unsigned char) 0x04;
|
|
buffer[3] = (unsigned char) 0x01;
|
|
std::fill(&buffer[4], &buffer[64], 0);
|
|
|
|
if (m_socket.writeDatagram((const char*) buffer, sizeof(buffer), m_metisAddress, m_metisPort) < 0)
|
|
{
|
|
qDebug() << "MetisMISOUDPHandler::start: writeDatagram start command failed " << m_socket.errorString();
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
qDebug() << "MetisMISOUDPHandler::start: writeDatagram start command" << m_metisAddress.toString() << ":" << m_metisPort;
|
|
}
|
|
|
|
m_socket.flush();
|
|
|
|
// send 2 frames with control data
|
|
|
|
sendData();
|
|
sendData(); // TODO: on the next send frequencies
|
|
|
|
m_running = true;
|
|
}
|
|
|
|
void MetisMISOUDPHandler::stop()
|
|
{
|
|
qDebug("MetisMISOUDPHandler::stop");
|
|
|
|
if (!m_running) {
|
|
return;
|
|
}
|
|
|
|
// stop Metis
|
|
unsigned char buffer[64];
|
|
|
|
buffer[0] = (unsigned char) 0xEF;
|
|
buffer[1] = (unsigned char) 0XFE;
|
|
buffer[2] = (unsigned char) 0x04;
|
|
buffer[3] = (unsigned char) 0x00;
|
|
std::fill(&buffer[4], &buffer[64], 0);
|
|
|
|
if (m_dataConnected)
|
|
{
|
|
disconnect(&m_socket, SIGNAL(readyRead()), this, SLOT(dataReadyRead()));
|
|
m_dataConnected = false;
|
|
}
|
|
|
|
|
|
if (m_socket.writeDatagram((const char*)buffer, sizeof(buffer), m_metisAddress,m_metisPort) < 0)
|
|
{
|
|
qDebug() << "MetisMISOUDPHandler::stop: writeDatagram failed " << m_socket.errorString();
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
qDebug()<<"MetisMISOUDPHandler::stop: writeDatagram stop command" << m_metisAddress.toString() << ":" << m_metisPort;
|
|
}
|
|
|
|
m_socket.flush();
|
|
m_socket.close();
|
|
m_running = false;
|
|
}
|
|
|
|
void MetisMISOUDPHandler::setNbReceivers(unsigned int nbReceivers)
|
|
{
|
|
m_nbReceivers = nbReceivers;
|
|
|
|
switch(m_nbReceivers)
|
|
{
|
|
case 1: m_bMax = 512-0; break;
|
|
case 2: m_bMax = 512-0; break;
|
|
case 3: m_bMax = 512-4; break;
|
|
case 4: m_bMax = 512-10; break;
|
|
case 5: m_bMax = 512-24; break;
|
|
case 6: m_bMax = 512-10; break;
|
|
case 7: m_bMax = 512-20; break;
|
|
case 8: m_bMax = 512-4; break;
|
|
}
|
|
|
|
for (unsigned int i = 0; i < MetisMISOSettings::m_maxReceivers; i++) {
|
|
m_convertBuffer[i].resize(1024, Sample{0,0});
|
|
}
|
|
}
|
|
|
|
void MetisMISOUDPHandler::applySettings(const MetisMISOSettings& settings)
|
|
{
|
|
if (m_settings.m_nbReceivers != settings.m_nbReceivers)
|
|
{
|
|
QMutexLocker mutexLocker(&m_mutex);
|
|
int nbReceivers = settings.m_nbReceivers < 1 ?
|
|
1 : settings.m_nbReceivers > MetisMISOSettings::m_maxReceivers ?
|
|
MetisMISOSettings::m_maxReceivers : settings.m_nbReceivers;
|
|
setNbReceivers(nbReceivers);
|
|
}
|
|
|
|
if (m_settings.m_log2Decim != settings.m_log2Decim)
|
|
{
|
|
QMutexLocker mutexLocker(&m_mutex);
|
|
m_decimators.resetCounters();
|
|
}
|
|
|
|
m_settings = settings;
|
|
}
|
|
|
|
void MetisMISOUDPHandler::handleMessages()
|
|
{
|
|
Message* message;
|
|
|
|
while ((message = m_inputMessageQueue.pop()) != 0)
|
|
{
|
|
if (handleMessage(*message)) {
|
|
delete message;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool MetisMISOUDPHandler::handleMessage(const Message& message)
|
|
{
|
|
if (MsgStartStop::match(message))
|
|
{
|
|
const MsgStartStop& cmd = (const MsgStartStop&) message;
|
|
|
|
if (cmd.getStartStop()) {
|
|
start();
|
|
} else {
|
|
stop();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
|
|
}
|
|
|
|
void MetisMISOUDPHandler::sendMetisBuffer(int ep, unsigned char* buffer)
|
|
{
|
|
if (m_offset == 8) // header and first HPSDR frame
|
|
{
|
|
m_sendSequence++;
|
|
m_outputBuffer[0] = 0xEF;
|
|
m_outputBuffer[1] = 0xFE;
|
|
m_outputBuffer[2] = 0x01;
|
|
m_outputBuffer[3] = ep;
|
|
m_outputBuffer[4] = (m_sendSequence>>24) & 0xFF;
|
|
m_outputBuffer[5] = (m_sendSequence>>16) & 0xFF;
|
|
m_outputBuffer[6] = (m_sendSequence>>8) & 0xFF;
|
|
m_outputBuffer[7] = (m_sendSequence) & 0xFF;
|
|
std::copy(buffer, buffer+512, &m_outputBuffer[m_offset]); // copy the buffer over
|
|
m_offset = 520;
|
|
}
|
|
else // second HPSDR frame and send
|
|
{
|
|
std::copy(buffer, buffer+512, &m_outputBuffer[m_offset]); // copy the buffer over
|
|
m_offset = 8;
|
|
|
|
// send the buffer
|
|
if (m_socket.writeDatagram((const char*) m_outputBuffer, sizeof(m_outputBuffer), m_metisAddress, m_metisPort) < 0)
|
|
{
|
|
qDebug() << "MetisMISOUDPHandler::sendMetisBuffer: writeDatagram failed " << m_socket.errorString();
|
|
return;
|
|
}
|
|
|
|
m_socket.flush();
|
|
}
|
|
}
|
|
|
|
void MetisMISOUDPHandler::dataReadyRead()
|
|
{
|
|
QHostAddress metisAddress;
|
|
quint16 metisPort;
|
|
unsigned char receiveBuffer[1032];
|
|
qint64 length;
|
|
unsigned long sequence;
|
|
|
|
if ((length = m_socket.readDatagram((char*) &receiveBuffer, (qint64) sizeof(receiveBuffer), &metisAddress, &metisPort)) != 1032)
|
|
{
|
|
qDebug() << "MetisMISOUDPHandler::dataReadyRead: readDatagram failed " << m_socket.errorString();
|
|
return;
|
|
}
|
|
|
|
if (receiveBuffer[0] == 0xEF && receiveBuffer[1] == 0xFE)
|
|
{
|
|
// valid frame
|
|
switch(receiveBuffer[2])
|
|
{
|
|
case 1: // IQ data
|
|
switch (receiveBuffer[3])
|
|
{
|
|
case 4: // EP4 data
|
|
break;
|
|
case 6: // EP6 data
|
|
sequence = ((receiveBuffer[4] & 0xFF)<<24) + ((receiveBuffer[5] & 0xFF)<<16) + ((receiveBuffer[6] & 0xFF)<<8) +(receiveBuffer[7] & 0xFF);
|
|
if (m_receiveSequence == 0)
|
|
{
|
|
m_receiveSequence = sequence;
|
|
}
|
|
else
|
|
{
|
|
m_receiveSequence++;
|
|
|
|
if (m_receiveSequence != sequence)
|
|
{
|
|
//qDebug()<<"Sequence error: expected "<<receive_sequence<<" got "<<sequence;
|
|
m_receiveSequence = sequence;
|
|
m_receiveSequenceError++;
|
|
}
|
|
}
|
|
processIQBuffer(&receiveBuffer[8]);
|
|
processIQBuffer(&receiveBuffer[520]);
|
|
break;
|
|
default:
|
|
qDebug() << "MetisMISOUDPHandler::dataReadyRead: invalid EP" << receiveBuffer[3];
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
qDebug() << "MetisMISOUDPHandler::dataReadyRead: expected data packet (1) got " << receiveBuffer[2];
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
qDebug() << "MetisMISOUDPHandler::dataReadyRead: expected EFFE";
|
|
}
|
|
}
|
|
|
|
void MetisMISOUDPHandler::sendData(bool nullPayload)
|
|
{
|
|
unsigned char buffer[512];
|
|
|
|
if ((m_settings.m_sampleRateIndex == 0) || (m_txFrame % (1<<m_settings.m_sampleRateIndex) == 0))
|
|
{
|
|
int commandIndex = 2*m_commandBase; // command rotation
|
|
|
|
buffer[0] = (unsigned char) 0x7F;
|
|
buffer[1] = (unsigned char) 0x7F;
|
|
buffer[2] = (unsigned char) 0x7F;
|
|
buffer[3] = commandIndex + (m_settings.m_txEnable ? 1 : 0); // C0
|
|
|
|
int commandValue = getCommandValue(commandIndex);
|
|
|
|
buffer[4]= commandValue>>24; // C1
|
|
buffer[5]= (commandValue>>16) & 0xFF; // C2
|
|
buffer[6]= (commandValue>>8) & 0xFF; // C3
|
|
buffer[7]= commandValue & 0xFF; // C4
|
|
|
|
if (m_commandBase < 18) { // base count 0 to 18
|
|
m_commandBase++;
|
|
} else {
|
|
m_commandBase = 0;
|
|
}
|
|
|
|
if (nullPayload)
|
|
{
|
|
std::fill(&buffer[8], &buffer[512], 0);
|
|
}
|
|
else
|
|
{
|
|
unsigned int iPart1Begin, iPart1End, iPart2Begin, iPart2End;
|
|
int bufferIndex = 8;
|
|
|
|
m_sampleMOFifo->readSync(63, iPart1Begin, iPart1End, iPart2Begin, iPart2End);
|
|
|
|
if (iPart1Begin != iPart1End) {
|
|
fillBuffer(buffer, bufferIndex, iPart1Begin, iPart1End);
|
|
}
|
|
|
|
if (iPart2Begin != iPart2End) {
|
|
fillBuffer(buffer, bufferIndex, iPart2Begin, iPart2End);
|
|
}
|
|
}
|
|
|
|
sendMetisBuffer(2, buffer);
|
|
}
|
|
|
|
m_txFrame++;
|
|
}
|
|
|
|
void MetisMISOUDPHandler::fillBuffer(unsigned char *buffer, int& bufferIndex, int iBegin, int iEnd)
|
|
{
|
|
SampleVector::iterator it = m_sampleMOFifo->getData(0).begin() + iBegin;
|
|
const SampleVector::iterator itEnd = m_sampleMOFifo->getData(0).begin() + iEnd;
|
|
|
|
for (; it != itEnd; ++it)
|
|
{
|
|
std::fill(&buffer[bufferIndex], &buffer[bufferIndex+4], 0); // Fill <L1><L0><R1><R0> with zeros
|
|
bufferIndex += 4;
|
|
buffer[bufferIndex++] = it->imag() >> 8;
|
|
buffer[bufferIndex++] = it->imag() & 0xFF;
|
|
buffer[bufferIndex++] = it->real() >> 8;
|
|
buffer[bufferIndex++] = it->real() & 0xFF;
|
|
}
|
|
}
|
|
|
|
int MetisMISOUDPHandler::getCommandValue(int commandIndex)
|
|
{
|
|
int c1 = 0, c3 = 0, c4 = 0;
|
|
|
|
if (commandIndex == 0)
|
|
{
|
|
c1 = m_settings.m_sampleRateIndex & 0x03;
|
|
c3 = m_settings.m_preamp ? 0x04 : 0;
|
|
c3 += m_settings.m_dither ? 0x08 : 0;
|
|
c3 += m_settings.m_random ? 0x10 : 0;
|
|
c4 = m_settings.m_duplex ? 0x04 : 0;
|
|
c4 += (((m_nbReceivers-1) & 0x07)<<3);
|
|
return (c1<<24) + (c3<<8) + c4;
|
|
}
|
|
else if (commandIndex == 2)
|
|
{
|
|
return getTxCenterFrequency();
|
|
}
|
|
else if (commandIndex == 4)
|
|
{
|
|
return getRxCenterFrequency(0);
|
|
}
|
|
else if (commandIndex == 6)
|
|
{
|
|
return getRxCenterFrequency(1);
|
|
}
|
|
else if (commandIndex == 8)
|
|
{
|
|
return getRxCenterFrequency(2);
|
|
}
|
|
else if (commandIndex == 10)
|
|
{
|
|
return getRxCenterFrequency(3);
|
|
}
|
|
else if (commandIndex == 12)
|
|
{
|
|
return getRxCenterFrequency(4);
|
|
}
|
|
else if (commandIndex == 14)
|
|
{
|
|
return getRxCenterFrequency(5);
|
|
}
|
|
else if (commandIndex == 16)
|
|
{
|
|
return getRxCenterFrequency(6);
|
|
}
|
|
else if (commandIndex == 18)
|
|
{
|
|
c1 = (m_settings.m_txDrive & 0x0F) << 4;
|
|
return (c1<<24) + (c3<<8) + c4;
|
|
}
|
|
else if (commandIndex == 36)
|
|
{
|
|
return getRxCenterFrequency(7);
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
quint64 MetisMISOUDPHandler::getRxCenterFrequency(int index)
|
|
{
|
|
qint64 deviceCenterFrequency;
|
|
qint64 loHalfFrequency = 61440000LL - ((m_settings.m_LOppmTenths * 122880000LL) / 20000000LL);
|
|
qint64 requiredRxFrequency = m_settings.m_rxCenterFrequencies[index]
|
|
- (m_settings.m_rxTransverterMode ? m_settings.m_rxTransverterDeltaFrequency : 0);
|
|
requiredRxFrequency = requiredRxFrequency < 0 ? 0 : requiredRxFrequency;
|
|
|
|
if (m_settings.m_rxSubsamplingIndexes[index] % 2 == 0) {
|
|
deviceCenterFrequency = requiredRxFrequency - m_settings.m_rxSubsamplingIndexes[index]*loHalfFrequency;
|
|
} else {
|
|
deviceCenterFrequency = (m_settings.m_rxSubsamplingIndexes[index] + 1)*loHalfFrequency - requiredRxFrequency;
|
|
}
|
|
|
|
qint64 df = ((qint64)deviceCenterFrequency * m_settings.m_LOppmTenths) / 10000000LL;
|
|
deviceCenterFrequency += df;
|
|
|
|
return deviceCenterFrequency < 0 ? 0 : deviceCenterFrequency > 61440000 ? 61440000 : deviceCenterFrequency;
|
|
}
|
|
|
|
quint64 MetisMISOUDPHandler::getTxCenterFrequency()
|
|
{
|
|
qint64 requiredTxFrequency = m_settings.m_txCenterFrequency
|
|
- (m_settings.m_txTransverterMode ? m_settings.m_txTransverterDeltaFrequency : 0);
|
|
requiredTxFrequency = requiredTxFrequency < 0 ? 0 : requiredTxFrequency;
|
|
return requiredTxFrequency;
|
|
}
|
|
|
|
bool MetisMISOUDPHandler::getRxIQInversion(int index)
|
|
{
|
|
return ((m_settings.m_rxSubsamplingIndexes[index] % 2) == 1) ^ !m_settings.m_iqOrder;
|
|
}
|
|
|
|
void MetisMISOUDPHandler::processIQBuffer(unsigned char* buffer)
|
|
{
|
|
int b = 0;
|
|
unsigned int r;
|
|
int sampleI, sampleQ, sampleMic;
|
|
|
|
|
|
if (buffer[b++]==0x7F && buffer[b++]==0x7F && buffer[b++]==0x7F)
|
|
{
|
|
QMutexLocker mutexLocker(&m_mutex);
|
|
|
|
// extract control bytes
|
|
m_controlIn[0] = buffer[b++];
|
|
m_controlIn[1] = buffer[b++];
|
|
m_controlIn[2] = buffer[b++];
|
|
m_controlIn[3] = buffer[b++];
|
|
m_controlIn[4] = buffer[b++];
|
|
|
|
// extract PTT, DOT and DASH
|
|
m_ptt = (m_controlIn[0] & 0x01) == 0x01;
|
|
m_dash = (m_controlIn[0] & 0x02) == 0x02;
|
|
m_dot = (m_controlIn[0] & 0x04) == 0x04;
|
|
|
|
switch((m_controlIn[0]>>3) & 0x1F)
|
|
{
|
|
case 0:
|
|
m_lt2208ADCOverflow = m_controlIn[1] & 0x01;
|
|
m_IO1 = (m_controlIn[1] & 0x02) ? 0 : 1;
|
|
m_IO2 = (m_controlIn[1] & 0x04) ? 0 : 1;
|
|
m_IO3 = (m_controlIn[1] & 0x08) ? 0 : 1;
|
|
// {
|
|
// int nbRx = (m_controlIn[4]>>3) & 0x07;
|
|
// nbRx++;
|
|
// qDebug("MetisMISOUDPHandler::processIQBuffer: nbRx: %d", nbRx);
|
|
// }
|
|
if (m_mercurySoftwareVersion != m_controlIn[2])
|
|
{
|
|
m_mercurySoftwareVersion = m_controlIn[2];
|
|
qDebug("MetisMISOUDPHandler::processIQBuffer: Mercury Software version: %d (0x%0X)",
|
|
m_mercurySoftwareVersion, m_mercurySoftwareVersion);
|
|
}
|
|
|
|
if (m_penelopeSoftwareVersion != m_controlIn[3])
|
|
{
|
|
m_penelopeSoftwareVersion = m_controlIn[3];
|
|
qDebug("MetisMISOUDPHandler::processIQBuffer: Penelope Software version: %d (0x%0X)",
|
|
m_penelopeSoftwareVersion, m_penelopeSoftwareVersion);
|
|
}
|
|
|
|
if (m_ozySoftwareVersion != m_controlIn[4])
|
|
{
|
|
m_ozySoftwareVersion = m_controlIn[4];
|
|
qDebug("MetisMISOUDPHandler::processIQBuffer: Ozy Software version: %d (0x%0X)",
|
|
m_ozySoftwareVersion, m_ozySoftwareVersion);
|
|
}
|
|
break;
|
|
|
|
case 1:
|
|
m_forwardPower = (m_controlIn[1]<<8) + m_controlIn[2]; // from Penelope or Hermes
|
|
m_alexForwardPower = (m_controlIn[3]<<8) + m_controlIn[4]; // from Alex or Apollo
|
|
break;
|
|
|
|
case 2:
|
|
m_alexForwardPower = (m_controlIn[1]<<8) + m_controlIn[2]; // from Alex or Apollo
|
|
m_AIN3 = (m_controlIn[3]<<8) + m_controlIn[4]; // from Pennelope or Hermes
|
|
break;
|
|
|
|
case 3:
|
|
m_AIN4 = (m_controlIn[1]<<8) + m_controlIn[2]; // from Pennelope or Hermes
|
|
m_AIN6 = (m_controlIn[3]<<8) + m_controlIn[4]; // from Pennelope or Hermes
|
|
break;
|
|
}
|
|
|
|
// extract the samples
|
|
while (b < m_bMax)
|
|
{
|
|
int samplesAdded = 0;
|
|
|
|
// extract each of the receivers
|
|
for (r = 0; r < m_nbReceivers; r++)
|
|
{
|
|
if (SDR_RX_SAMP_SZ == 16)
|
|
{
|
|
sampleQ = (int)((signed char)buffer[b++]) << 8;
|
|
sampleQ += (int)((unsigned char)buffer[b++]);
|
|
b++;
|
|
sampleI = (int)((signed char)buffer[b++]) << 8;
|
|
sampleI += (int)((unsigned char)buffer[b++]);
|
|
b++;
|
|
}
|
|
else
|
|
{
|
|
sampleQ = (int)((signed char)buffer[b++]) << 16;
|
|
sampleQ += (int)((unsigned char)buffer[b++]) << 8;
|
|
sampleQ += (int)((unsigned char)buffer[b++]);
|
|
sampleI = (int)((signed char)buffer[b++]) << 16;
|
|
sampleI += (int)((unsigned char)buffer[b++]) << 8;
|
|
sampleI += (int)((unsigned char)buffer[b++]);
|
|
}
|
|
|
|
if (r < MetisMISOSettings::m_maxReceivers)
|
|
{
|
|
if (m_settings.m_log2Decim == 0) // no decimation - direct conversion
|
|
{
|
|
m_convertBuffer[r][m_sampleCount] = getRxIQInversion(r)
|
|
? Sample{(FixReal) sampleQ, (FixReal) sampleI}
|
|
: Sample{(FixReal) sampleI, (FixReal) sampleQ};
|
|
samplesAdded = 1;
|
|
}
|
|
else
|
|
{
|
|
SampleVector v(2, Sample{0, 0});
|
|
|
|
switch (m_settings.m_log2Decim)
|
|
{
|
|
case 1:
|
|
samplesAdded = getRxIQInversion(r) ?
|
|
m_decimators.decimate2(sampleQ, sampleI, v, r) : m_decimators.decimate2(sampleI, sampleQ, v, r);
|
|
break;
|
|
case 2:
|
|
samplesAdded = getRxIQInversion(r) ?
|
|
m_decimators.decimate4(sampleQ, sampleI, v, r) : m_decimators.decimate4(sampleI, sampleQ, v, r);
|
|
break;
|
|
case 3:
|
|
samplesAdded = getRxIQInversion(r) ?
|
|
m_decimators.decimate8(sampleQ, sampleI, v, r) : m_decimators.decimate8(sampleI, sampleQ, v, r);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (samplesAdded != 0)
|
|
{
|
|
std::copy(
|
|
v.begin(),
|
|
v.begin() + samplesAdded,
|
|
&m_convertBuffer[r][m_sampleCount]
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
sampleMic = (int)((signed char) buffer[b++]) << 8;
|
|
sampleMic += (int)((unsigned char)buffer[b++]);
|
|
m_sampleTxCount++;
|
|
|
|
if (m_sampleTxCount >= 63) // 63 samples per 512 byte Tx block
|
|
{
|
|
sendData(!m_settings.m_txEnable); // synchronous sending of a Tx frame
|
|
m_sampleTxCount = 0;
|
|
}
|
|
|
|
if (samplesAdded != 0)
|
|
{
|
|
m_sampleCount += samplesAdded;
|
|
|
|
if (m_sampleCount >= 1024)
|
|
{
|
|
std::vector<SampleVector::const_iterator> vbegin;
|
|
|
|
for (unsigned int channel = 0; channel < MetisMISOSettings::m_maxReceivers; channel++) {
|
|
vbegin.push_back(m_convertBuffer[channel].begin());
|
|
}
|
|
|
|
m_sampleMIFifo->writeSync(vbegin, 1024);
|
|
m_sampleCount = 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
qDebug()<<"MetisMISOUDPHandler::processIQBuffer: SYNC Error";
|
|
}
|
|
|
|
m_rxFrame++;
|
|
}
|