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8-bit IQ data is unsigned. Add DC/IQ correction for RTL0. Don't send SDRA commands when RTL0. Implements #1467

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This commit is contained in:
Jon Beniston 2022-11-03 15:57:00 +00:00
parent 3814a95073
commit 4f99e2fdf5
5 changed files with 55 additions and 17 deletions
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4
plugins/samplesource/remotetcpinput/readme.md
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@ -30,11 +30,11 @@ This is the correction to be applied to the remote device's local oscillator in
<h3>5: DC offset correction</h3>
Check this button to enable DC offset correction on the remote device. This is only supported when the remote server is SDRangel.
Check this button to enable DC offset correction.
<h3>6: IQ imbalance correction</h3>
Check this button to enable IQ imbalance correction on the remote device. This is only supported when the remote server is SDRangel.
Check this button to enable IQ imbalance correction.
<h3>7: Bias tee</h3>

9
plugins/samplesource/remotetcpinput/remotetcpinput.cpp
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@ -224,6 +224,15 @@ void RemoteTCPInput::applySettings(const RemoteTCPInputSettings& settings, const
std::ostringstream os;
bool forwardChange = false;
// Should this only be applied if not applied on remote?
if (settingsKeys.contains("dcBlock") || settingsKeys.contains("iqCorrection") || force)
{
m_deviceAPI->configureCorrections(settings.m_dcBlock, settings.m_iqCorrection);
qDebug("RemoteTCPInput::applySettings: corrections: DC block: %s IQ imbalance: %s",
settings.m_dcBlock ? "true" : "false",
settings.m_iqCorrection ? "true" : "false");
}
if (settingsKeys.contains("centerFrequency") || force) {
forwardChange = true;
}

2
plugins/samplesource/remotetcpinput/remotetcpinputgui.cpp
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@ -241,8 +241,6 @@ bool RemoteTCPInputGui::handleMessage(const Message& message)
ui->sampleBits->removeItem(ui->sampleBits->count() - 1);
}
}
ui->dcOffset->setVisible(sdra);
ui->iqImbalance->setVisible(sdra);
if (sdra && (ui->decim->count() != 7))
{
ui->decim->addItem("2");

55
plugins/samplesource/remotetcpinput/remotetcpinputtcphandler.cpp
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@ -41,6 +41,7 @@ RemoteTCPInputTCPHandler::RemoteTCPInputTCPHandler(SampleSinkFifo *sampleFifo, D
m_fillBuffer(true),
m_timer(this),
m_reconnectTimer(this),
m_sdra(false),
m_converterBuffer(nullptr),
m_converterBufferNbSamples(0),
m_settings()
@ -218,6 +219,18 @@ void RemoteTCPInputTCPHandler::setTunerGain(int gain)
}
}
void RemoteTCPInputTCPHandler::setGainByIndex(int index)
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[5];
request[0] = RemoteTCPProtocol::setGainByIndex;
RemoteTCPProtocol::encodeUInt32(&request[1], index);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::setFreqCorrection(int correction)
{
QMutexLocker mutexLocker(&m_mutex);
@ -260,7 +273,7 @@ void RemoteTCPInputTCPHandler::setDirectSampling(bool enabled)
quint8 request[5];
request[0] = RemoteTCPProtocol::setDirectSampling;
RemoteTCPProtocol::encodeUInt32(&request[1], enabled);
RemoteTCPProtocol::encodeUInt32(&request[1], enabled ? 3 : 0);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
@ -388,10 +401,14 @@ void RemoteTCPInputTCPHandler::applySettings(const RemoteTCPInputSettings& setti
setFreqCorrection(settings.m_loPpmCorrection);
}
if (settingsKeys.contains("dcBlock") || force) {
setDCOffsetRemoval(settings.m_dcBlock);
if (m_sdra) {
setDCOffsetRemoval(settings.m_dcBlock);
}
}
if (settingsKeys.contains("iqCorrection") || force) {
setIQCorrection(settings.m_iqCorrection);
if (m_sdra) {
setIQCorrection(settings.m_iqCorrection);
}
}
if (settingsKeys.contains("biasTee") || force) {
setBiasTee(settings.m_biasTee);
@ -400,7 +417,9 @@ void RemoteTCPInputTCPHandler::applySettings(const RemoteTCPInputSettings& setti
setDirectSampling(settings.m_directSampling);
}
if (settingsKeys.contains("log2Decim") || force) {
setDecimation(settings.m_log2Decim);
if (m_sdra) {
setDecimation(settings.m_log2Decim);
}
}
if (settingsKeys.contains("devSampleRate") || force) {
setSampleRate(settings.m_devSampleRate);
@ -417,17 +436,21 @@ void RemoteTCPInputTCPHandler::applySettings(const RemoteTCPInputSettings& setti
for (int i = 1; i < 3; i++)
{
if (settingsKeys.contains(QString("gain[%1]").arg(i)) || force) {
//setIFGain(i, 20 + settings.m_gain[i]);
setIFGain(i, settings.m_gain[i]);
}
}
if (settingsKeys.contains("rfBW") || force) {
setBandwidth(settings.m_rfBW);
}
if (settingsKeys.contains("inputFrequencyOffset") || force) {
setChannelFreqOffset(settings.m_inputFrequencyOffset);
if (m_sdra) {
setChannelFreqOffset(settings.m_inputFrequencyOffset);
}
}
if (settingsKeys.contains("channelGain") || force) {
setChannelGain(settings.m_channelGain);
if (m_sdra) {
setChannelGain(settings.m_channelGain);
}
}
if ((settings.m_channelSampleRate != m_settings.m_channelSampleRate) || force)
{
@ -441,12 +464,16 @@ void RemoteTCPInputTCPHandler::applySettings(const RemoteTCPInputSettings& setti
m_tcpBuf = new char[m_sampleFifo->size()*2*4];
m_fillBuffer = true; // So we reprime FIFO
}
setChannelSampleRate(settings.m_channelSampleRate);
if (m_sdra) {
setChannelSampleRate(settings.m_channelSampleRate);
}
clearBuffer();
}
if (settingsKeys.contains("sampleBits") || force)
{
setSampleBitDepth(settings.m_sampleBits);
if (m_sdra) {
setSampleBitDepth(settings.m_sampleBits);
}
clearBuffer();
}
@ -536,6 +563,7 @@ void RemoteTCPInputTCPHandler::dataReadyRead()
if (protocol == "RTL0")
{
m_sdra = false;
bytesRead = m_dataSocket->read((char *)&metaData[4], RemoteTCPProtocol::m_rtl0MetaDataSize-4);
RemoteTCPProtocol::Device tuner = (RemoteTCPProtocol::Device)RemoteTCPProtocol::extractUInt32(&metaData[4]);
@ -557,6 +585,7 @@ void RemoteTCPInputTCPHandler::dataReadyRead()
}
else if (protocol == "SDRA")
{
m_sdra = true;
bytesRead = m_dataSocket->read((char *)&metaData[4], RemoteTCPProtocol::m_sdraMetaDataSize-4);
RemoteTCPProtocol::Device device = (RemoteTCPProtocol::Device)RemoteTCPProtocol::extractUInt32(&metaData[4]);
@ -704,22 +733,22 @@ void RemoteTCPInputTCPHandler::convert(int nbSamples)
}
else if ((m_settings.m_sampleBits == 8) && (SDR_RX_SAMP_SZ == 16))
{
qint8 *in = (qint8 *)m_tcpBuf;
quint8 *in = (quint8 *)m_tcpBuf;
qint16 *out = (qint16 *)m_converterBuffer;
for (int is = 0; is < nbSamples*2; is++) {
out[is] = (((qint16)in[is]) - 128);
out[is] = (((qint16)in[is]) - 128) << 8;
}
m_sampleFifo->write(reinterpret_cast<quint8*>(out), nbSamples*sizeof(Sample));
}
else if ((m_settings.m_sampleBits == 8) && (SDR_RX_SAMP_SZ == 24))
{
qint8 *in = (qint8 *)m_tcpBuf;
quint8 *in = (quint8 *)m_tcpBuf;
qint32 *out = (qint32 *)m_converterBuffer;
for (int is = 0; is < nbSamples*2; is++) {
out[is] = (((qint32)in[is]) - 128) << 8; // Only shift by 8, rather than 16, to match levels of native driver
out[is] = (((qint32)in[is]) - 128) << 16;
}
m_sampleFifo->write(reinterpret_cast<quint8*>(out), nbSamples*sizeof(Sample));

2
plugins/samplesource/remotetcpinput/remotetcpinputtcphandler.h
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@ -137,6 +137,7 @@ private:
QTimer m_timer;
QTimer m_reconnectTimer;
QDateTime m_prevDateTime;
bool m_sdra;
int32_t *m_converterBuffer;
uint32_t m_converterBufferNbSamples;
@ -155,6 +156,7 @@ private:
void setCenterFrequency(quint64 frequency);
void setTunerAGC(bool agc);
void setTunerGain(int gain);
void setGainByIndex(int gain);
void setFreqCorrection(int correction);
void setIFGain(quint16 stage, quint16 gain);
void setAGC(bool agc);