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689 lines
19 KiB
C++
689 lines
19 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2015 F4EXB //
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// written by Edouard Griffiths //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include "dspdevicesourceengine.h"
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#include <dsp/basebandsamplesink.h>
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#include <dsp/devicesamplesource.h>
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#include <stdio.h>
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#include <QDebug>
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#include "dsp/dspcommands.h"
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#include "util/fixed.h"
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#include "samplesinkfifo.h"
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DSPDeviceSourceEngine::DSPDeviceSourceEngine(uint uid, QObject* parent) :
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QThread(parent),
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m_uid(uid),
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m_state(StNotStarted),
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m_deviceSampleSource(nullptr),
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m_sampleSourceSequence(0),
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m_basebandSampleSinks(),
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m_sampleRate(0),
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m_centerFrequency(0),
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m_dcOffsetCorrection(false),
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m_iqImbalanceCorrection(false),
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m_iOffset(0),
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m_qOffset(0),
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m_iRange(1 << 16),
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m_qRange(1 << 16),
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m_imbalance(65536)
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{
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connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()), Qt::QueuedConnection);
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connect(&m_syncMessenger, SIGNAL(messageSent()), this, SLOT(handleSynchronousMessages()), Qt::QueuedConnection);
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moveToThread(this);
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}
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DSPDeviceSourceEngine::~DSPDeviceSourceEngine()
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{
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stop();
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wait();
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}
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void DSPDeviceSourceEngine::setState(State state)
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{
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if (m_state != state)
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{
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m_state = state;
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emit stateChanged();
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}
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}
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void DSPDeviceSourceEngine::run()
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{
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qDebug() << "DSPDeviceSourceEngine::run";
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setState(StIdle);
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exec();
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}
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void DSPDeviceSourceEngine::start()
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{
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qDebug() << "DSPDeviceSourceEngine::start";
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QThread::start();
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}
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void DSPDeviceSourceEngine::stop()
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{
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qDebug() << "DSPDeviceSourceEngine::stop";
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gotoIdle();
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setState(StNotStarted);
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QThread::exit();
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// DSPExit cmd;
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// m_syncMessenger.sendWait(cmd);
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}
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bool DSPDeviceSourceEngine::initAcquisition()
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{
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qDebug() << "DSPDeviceSourceEngine::initAcquisition";
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DSPAcquisitionInit cmd;
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return m_syncMessenger.sendWait(cmd) == StReady;
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}
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bool DSPDeviceSourceEngine::startAcquisition()
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{
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qDebug() << "DSPDeviceSourceEngine::startAcquisition";
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DSPAcquisitionStart cmd;
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return m_syncMessenger.sendWait(cmd) == StRunning;
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}
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void DSPDeviceSourceEngine::stopAcquistion()
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{
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qDebug() << "DSPDeviceSourceEngine::stopAcquistion";
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DSPAcquisitionStop cmd;
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m_syncMessenger.storeMessage(cmd);
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handleSynchronousMessages();
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if(m_dcOffsetCorrection)
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{
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qDebug("DC offset:%f,%f", m_iOffset, m_qOffset);
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}
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}
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void DSPDeviceSourceEngine::setSource(DeviceSampleSource* source)
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{
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qDebug() << "DSPDeviceSourceEngine::setSource";
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DSPSetSource cmd(source);
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m_syncMessenger.sendWait(cmd);
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}
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void DSPDeviceSourceEngine::setSourceSequence(int sequence)
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{
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qDebug("DSPDeviceSourceEngine::setSourceSequence: seq: %d", sequence);
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m_sampleSourceSequence = sequence;
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}
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void DSPDeviceSourceEngine::addSink(BasebandSampleSink* sink)
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{
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qDebug() << "DSPDeviceSourceEngine::addSink: " << sink->getSinkName().toStdString().c_str();
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DSPAddBasebandSampleSink cmd(sink);
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m_syncMessenger.sendWait(cmd);
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}
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void DSPDeviceSourceEngine::removeSink(BasebandSampleSink* sink)
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{
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qDebug() << "DSPDeviceSourceEngine::removeSink: " << sink->getSinkName().toStdString().c_str();
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DSPRemoveBasebandSampleSink cmd(sink);
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m_syncMessenger.sendWait(cmd);
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}
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void DSPDeviceSourceEngine::configureCorrections(bool dcOffsetCorrection, bool iqImbalanceCorrection)
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{
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qDebug() << "DSPDeviceSourceEngine::configureCorrections";
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DSPConfigureCorrection* cmd = new DSPConfigureCorrection(dcOffsetCorrection, iqImbalanceCorrection);
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m_inputMessageQueue.push(cmd);
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}
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QString DSPDeviceSourceEngine::errorMessage()
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{
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qDebug() << "DSPDeviceSourceEngine::errorMessage";
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DSPGetErrorMessage cmd;
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m_syncMessenger.sendWait(cmd);
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return cmd.getErrorMessage();
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}
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QString DSPDeviceSourceEngine::sourceDeviceDescription()
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{
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qDebug() << "DSPDeviceSourceEngine::sourceDeviceDescription";
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DSPGetSourceDeviceDescription cmd;
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m_syncMessenger.sendWait(cmd);
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return cmd.getDeviceDescription();
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}
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void DSPDeviceSourceEngine::iqCorrections(SampleVector::iterator begin, SampleVector::iterator end, bool imbalanceCorrection)
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{
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for(SampleVector::iterator it = begin; it < end; it++)
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{
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m_iBeta(it->real());
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m_qBeta(it->imag());
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if (imbalanceCorrection)
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{
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#if IMBALANCE_INT
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// acquisition
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int64_t xi = (it->m_real - (int32_t) m_iBeta) << 5;
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int64_t xq = (it->m_imag - (int32_t) m_qBeta) << 5;
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// phase imbalance
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m_avgII((xi*xi)>>28); // <I", I">
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m_avgIQ((xi*xq)>>28); // <I", Q">
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if ((int64_t) m_avgII != 0)
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{
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int64_t phi = (((int64_t) m_avgIQ)<<28) / (int64_t) m_avgII;
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m_avgPhi(phi);
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}
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int64_t corrPhi = (((int64_t) m_avgPhi) * xq) >> 28; //(m_avgPhi.asDouble()/16777216.0) * ((double) xq);
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int64_t yi = xi - corrPhi;
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int64_t yq = xq;
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// amplitude I/Q imbalance
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m_avgII2((yi*yi)>>28); // <I, I>
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m_avgQQ2((yq*yq)>>28); // <Q, Q>
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if ((int64_t) m_avgQQ2 != 0)
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{
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int64_t a = (((int64_t) m_avgII2)<<28) / (int64_t) m_avgQQ2;
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Fixed<int64_t, 28> fA(Fixed<int64_t, 28>::internal(), a);
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Fixed<int64_t, 28> sqrtA = sqrt((Fixed<int64_t, 28>) fA);
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m_avgAmp(sqrtA.as_internal());
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}
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int64_t zq = (((int64_t) m_avgAmp) * yq) >> 28;
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it->m_real = yi >> 5;
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it->m_imag = zq >> 5;
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#else
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// DC correction and conversion
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float xi = (it->m_real - (int32_t) m_iBeta) / SDR_RX_SCALEF;
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float xq = (it->m_imag - (int32_t) m_qBeta) / SDR_RX_SCALEF;
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// phase imbalance
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m_avgII(xi*xi); // <I", I">
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m_avgIQ(xi*xq); // <I", Q">
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if (m_avgII.asDouble() != 0) {
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m_avgPhi(m_avgIQ.asDouble()/m_avgII.asDouble());
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}
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float& yi = xi; // the in phase remains the reference
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float yq = xq - m_avgPhi.asDouble()*xi;
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// amplitude I/Q imbalance
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m_avgII2(yi*yi); // <I, I>
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m_avgQQ2(yq*yq); // <Q, Q>
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if (m_avgQQ2.asDouble() != 0) {
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m_avgAmp(sqrt(m_avgII2.asDouble() / m_avgQQ2.asDouble()));
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}
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// final correction
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float& zi = yi; // the in phase remains the reference
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float zq = m_avgAmp.asDouble() * yq;
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// convert and store
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it->m_real = zi * SDR_RX_SCALEF;
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it->m_imag = zq * SDR_RX_SCALEF;
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#endif
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}
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else
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{
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// DC correction only
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it->m_real -= (int32_t) m_iBeta;
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it->m_imag -= (int32_t) m_qBeta;
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}
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}
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}
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void DSPDeviceSourceEngine::dcOffset(SampleVector::iterator begin, SampleVector::iterator end)
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{
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// sum and correct in one pass
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for(SampleVector::iterator it = begin; it < end; it++)
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{
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m_iBeta(it->real());
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m_qBeta(it->imag());
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it->m_real -= (int32_t) m_iBeta;
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it->m_imag -= (int32_t) m_qBeta;
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}
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}
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void DSPDeviceSourceEngine::imbalance(SampleVector::iterator begin, SampleVector::iterator end)
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{
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int iMin = 0;
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int iMax = 0;
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int qMin = 0;
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int qMax = 0;
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// find value ranges for both I and Q
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// both intervals should be same same size (for a perfect circle)
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for (SampleVector::iterator it = begin; it < end; it++)
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{
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if (it != begin)
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{
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if (it->real() < iMin) {
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iMin = it->real();
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} else if (it->real() > iMax) {
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iMax = it->real();
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}
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if (it->imag() < qMin) {
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qMin = it->imag();
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} else if (it->imag() > qMax) {
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qMax = it->imag();
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}
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}
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else
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{
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iMin = it->real();
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iMax = it->real();
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qMin = it->imag();
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qMax = it->imag();
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}
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}
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// sliding average (el cheapo again)
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m_iRange = (m_iRange * 15 + (iMax - iMin)) >> 4;
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m_qRange = (m_qRange * 15 + (qMax - qMin)) >> 4;
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// calculate imbalance on 32 bit full scale
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if(m_qRange != 0) {
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m_imbalance = ((uint)m_iRange << (32-SDR_RX_SAMP_SZ)) / (uint)m_qRange;
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}
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// correct imbalance and convert back to sample size
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for(SampleVector::iterator it = begin; it < end; it++) {
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it->m_imag = (it->m_imag * m_imbalance) >> (32-SDR_RX_SAMP_SZ);
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}
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}
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void DSPDeviceSourceEngine::work()
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{
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SampleSinkFifo* sampleFifo = m_deviceSampleSource->getSampleFifo();
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std::size_t samplesDone = 0;
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bool positiveOnly = false;
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while ((sampleFifo->fill() > 0) && (m_inputMessageQueue.size() == 0) && (samplesDone < m_sampleRate))
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{
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SampleVector::iterator part1begin;
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SampleVector::iterator part1end;
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SampleVector::iterator part2begin;
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SampleVector::iterator part2end;
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std::size_t count = sampleFifo->readBegin(sampleFifo->fill(), &part1begin, &part1end, &part2begin, &part2end);
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// first part of FIFO data
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if (part1begin != part1end)
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{
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// correct stuff
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if (m_dcOffsetCorrection)
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{
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iqCorrections(part1begin, part1end, m_iqImbalanceCorrection);
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}
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// feed data to direct sinks
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for (BasebandSampleSinks::const_iterator it = m_basebandSampleSinks.begin(); it != m_basebandSampleSinks.end(); ++it)
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{
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(*it)->feed(part1begin, part1end, positiveOnly);
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}
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}
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// second part of FIFO data (used when block wraps around)
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if(part2begin != part2end)
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{
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// correct stuff
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if (m_dcOffsetCorrection)
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{
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iqCorrections(part2begin, part2end, m_iqImbalanceCorrection);
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}
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// feed data to direct sinks
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for (BasebandSampleSinks::const_iterator it = m_basebandSampleSinks.begin(); it != m_basebandSampleSinks.end(); it++)
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{
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(*it)->feed(part2begin, part2end, positiveOnly);
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}
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}
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// adjust FIFO pointers
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sampleFifo->readCommit((unsigned int) count);
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samplesDone += count;
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}
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}
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// notStarted -> idle -> init -> running -+
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// ^ |
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// +-----------------------+
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DSPDeviceSourceEngine::State DSPDeviceSourceEngine::gotoIdle()
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{
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qDebug() << "DSPDeviceSourceEngine::gotoIdle";
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switch(m_state) {
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case StNotStarted:
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return StNotStarted;
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case StIdle:
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case StError:
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return StIdle;
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case StReady:
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case StRunning:
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break;
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}
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if (!m_deviceSampleSource) {
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return StIdle;
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}
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// stop everything
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m_deviceSampleSource->stop();
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for(BasebandSampleSinks::const_iterator it = m_basebandSampleSinks.begin(); it != m_basebandSampleSinks.end(); it++)
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{
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(*it)->stop();
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}
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m_deviceDescription.clear();
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m_sampleRate = 0;
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return StIdle;
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}
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DSPDeviceSourceEngine::State DSPDeviceSourceEngine::gotoInit()
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{
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switch(m_state) {
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case StNotStarted:
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return StNotStarted;
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case StRunning: // FIXME: assumes it goes first through idle state. Could we get back to init from running directly?
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return StRunning;
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case StReady:
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return StReady;
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case StIdle:
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case StError:
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break;
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}
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if (!m_deviceSampleSource) {
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return gotoError("No sample source configured");
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}
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// init: pass sample rate and center frequency to all sample rate and/or center frequency dependent sinks and wait for completion
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m_iOffset = 0;
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m_qOffset = 0;
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m_iRange = 1 << 16;
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m_qRange = 1 << 16;
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m_deviceDescription = m_deviceSampleSource->getDeviceDescription();
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m_centerFrequency = m_deviceSampleSource->getCenterFrequency();
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m_sampleRate = m_deviceSampleSource->getSampleRate();
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qDebug() << "DSPDeviceSourceEngine::gotoInit: "
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<< " m_deviceDescription: " << m_deviceDescription.toStdString().c_str()
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<< " sampleRate: " << m_sampleRate
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<< " centerFrequency: " << m_centerFrequency;
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for (BasebandSampleSinks::const_iterator it = m_basebandSampleSinks.begin(); it != m_basebandSampleSinks.end(); ++it)
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{
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DSPSignalNotification *notif = new DSPSignalNotification(m_sampleRate, m_centerFrequency);
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qDebug() << "DSPDeviceSourceEngine::gotoInit: initializing " << (*it)->getSinkName().toStdString().c_str();
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(*it)->pushMessage(notif);
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}
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// pass data to listeners
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if (m_deviceSampleSource->getMessageQueueToGUI())
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{
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DSPSignalNotification* rep = new DSPSignalNotification(m_sampleRate, m_centerFrequency);
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m_deviceSampleSource->getMessageQueueToGUI()->push(rep);
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}
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return StReady;
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}
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DSPDeviceSourceEngine::State DSPDeviceSourceEngine::gotoRunning()
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{
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qDebug() << "DSPDeviceSourceEngine::gotoRunning";
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switch(m_state)
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{
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case StNotStarted:
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return StNotStarted;
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case StIdle:
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return StIdle;
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case StRunning:
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return StRunning;
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case StReady:
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case StError:
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break;
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}
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if (!m_deviceSampleSource) {
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return gotoError("DSPDeviceSourceEngine::gotoRunning: No sample source configured");
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}
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qDebug() << "DSPDeviceSourceEngine::gotoRunning: " << m_deviceDescription.toStdString().c_str() << " started";
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// Start everything
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if (!m_deviceSampleSource->start()) {
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return gotoError("Could not start sample source");
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}
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for(BasebandSampleSinks::const_iterator it = m_basebandSampleSinks.begin(); it != m_basebandSampleSinks.end(); it++)
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{
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qDebug() << "DSPDeviceSourceEngine::gotoRunning: starting " << (*it)->getSinkName().toStdString().c_str();
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(*it)->start();
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}
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qDebug() << "DSPDeviceSourceEngine::gotoRunning:input message queue pending: " << m_inputMessageQueue.size();
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return StRunning;
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}
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DSPDeviceSourceEngine::State DSPDeviceSourceEngine::gotoError(const QString& errorMessage)
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{
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qDebug() << "DSPDeviceSourceEngine::gotoError: " << errorMessage;
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m_errorMessage = errorMessage;
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m_deviceDescription.clear();
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setState(StError);
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return StError;
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}
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void DSPDeviceSourceEngine::handleSetSource(DeviceSampleSource* source)
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{
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gotoIdle();
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// if(m_sampleSource != 0)
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// {
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// disconnect(m_sampleSource->getSampleFifo(), SIGNAL(dataReady()), this, SLOT(handleData()));
|
|
// }
|
|
|
|
m_deviceSampleSource = source;
|
|
|
|
if (m_deviceSampleSource)
|
|
{
|
|
qDebug("DSPDeviceSourceEngine::handleSetSource: set %s", qPrintable(source->getDeviceDescription()));
|
|
connect(m_deviceSampleSource->getSampleFifo(), SIGNAL(dataReady()), this, SLOT(handleData()), Qt::QueuedConnection);
|
|
}
|
|
else
|
|
{
|
|
qDebug("DSPDeviceSourceEngine::handleSetSource: set none");
|
|
}
|
|
}
|
|
|
|
void DSPDeviceSourceEngine::handleData()
|
|
{
|
|
if(m_state == StRunning)
|
|
{
|
|
work();
|
|
}
|
|
}
|
|
|
|
void DSPDeviceSourceEngine::handleSynchronousMessages()
|
|
{
|
|
Message *message = m_syncMessenger.getMessage();
|
|
qDebug() << "DSPDeviceSourceEngine::handleSynchronousMessages: " << message->getIdentifier();
|
|
|
|
if (DSPAcquisitionInit::match(*message))
|
|
{
|
|
setState(gotoIdle());
|
|
|
|
if(m_state == StIdle) {
|
|
setState(gotoInit()); // State goes ready if init is performed
|
|
}
|
|
}
|
|
else if (DSPAcquisitionStart::match(*message))
|
|
{
|
|
if(m_state == StReady) {
|
|
setState(gotoRunning());
|
|
}
|
|
}
|
|
else if (DSPAcquisitionStop::match(*message))
|
|
{
|
|
setState(gotoIdle());
|
|
}
|
|
else if (DSPGetSourceDeviceDescription::match(*message))
|
|
{
|
|
((DSPGetSourceDeviceDescription*) message)->setDeviceDescription(m_deviceDescription);
|
|
}
|
|
else if (DSPGetErrorMessage::match(*message))
|
|
{
|
|
((DSPGetErrorMessage*) message)->setErrorMessage(m_errorMessage);
|
|
}
|
|
else if (DSPSetSource::match(*message)) {
|
|
handleSetSource(((DSPSetSource*) message)->getSampleSource());
|
|
}
|
|
else if (DSPAddBasebandSampleSink::match(*message))
|
|
{
|
|
BasebandSampleSink* sink = ((DSPAddBasebandSampleSink*) message)->getSampleSink();
|
|
m_basebandSampleSinks.push_back(sink);
|
|
// initialize sample rate and center frequency in the sink:
|
|
DSPSignalNotification *msg = new DSPSignalNotification(m_sampleRate, m_centerFrequency);
|
|
sink->pushMessage(msg);
|
|
// start the sink:
|
|
if(m_state == StRunning) {
|
|
sink->start();
|
|
}
|
|
}
|
|
else if (DSPRemoveBasebandSampleSink::match(*message))
|
|
{
|
|
BasebandSampleSink* sink = ((DSPRemoveBasebandSampleSink*) message)->getSampleSink();
|
|
|
|
if(m_state == StRunning) {
|
|
sink->stop();
|
|
}
|
|
|
|
m_basebandSampleSinks.remove(sink);
|
|
}
|
|
|
|
m_syncMessenger.done(m_state);
|
|
}
|
|
|
|
void DSPDeviceSourceEngine::handleInputMessages()
|
|
{
|
|
Message* message;
|
|
|
|
while ((message = m_inputMessageQueue.pop()) != 0)
|
|
{
|
|
qDebug("DSPDeviceSourceEngine::handleInputMessages: message: %s", message->getIdentifier());
|
|
|
|
if (DSPConfigureCorrection::match(*message))
|
|
{
|
|
DSPConfigureCorrection* conf = (DSPConfigureCorrection*) message;
|
|
m_iqImbalanceCorrection = conf->getIQImbalanceCorrection();
|
|
|
|
if(m_dcOffsetCorrection != conf->getDCOffsetCorrection())
|
|
{
|
|
m_dcOffsetCorrection = conf->getDCOffsetCorrection();
|
|
m_iOffset = 0;
|
|
m_qOffset = 0;
|
|
}
|
|
|
|
if(m_iqImbalanceCorrection != conf->getIQImbalanceCorrection())
|
|
{
|
|
m_iqImbalanceCorrection = conf->getIQImbalanceCorrection();
|
|
m_iRange = 1 << 16;
|
|
m_qRange = 1 << 16;
|
|
m_imbalance = 65536;
|
|
}
|
|
|
|
m_avgAmp.reset();
|
|
m_avgII.reset();
|
|
m_avgII2.reset();
|
|
m_avgIQ.reset();
|
|
m_avgPhi.reset();
|
|
m_avgQQ2.reset();
|
|
m_iBeta.reset();
|
|
m_qBeta.reset();
|
|
|
|
delete message;
|
|
}
|
|
else if (DSPSignalNotification::match(*message))
|
|
{
|
|
DSPSignalNotification *notif = (DSPSignalNotification *) message;
|
|
|
|
// update DSP values
|
|
|
|
m_sampleRate = notif->getSampleRate();
|
|
m_centerFrequency = notif->getCenterFrequency();
|
|
|
|
qDebug() << "DSPDeviceSourceEngine::handleInputMessages: DSPSignalNotification:"
|
|
<< " m_sampleRate: " << m_sampleRate
|
|
<< " m_centerFrequency: " << m_centerFrequency;
|
|
|
|
// forward source changes to channel sinks with immediate execution (no queuing)
|
|
|
|
for(BasebandSampleSinks::const_iterator it = m_basebandSampleSinks.begin(); it != m_basebandSampleSinks.end(); it++)
|
|
{
|
|
DSPSignalNotification* rep = new DSPSignalNotification(*notif); // make a copy
|
|
qDebug() << "DSPDeviceSourceEngine::handleInputMessages: forward message to " << (*it)->getSinkName().toStdString().c_str();
|
|
(*it)->pushMessage(rep);
|
|
}
|
|
|
|
// forward changes to source GUI input queue
|
|
if (m_deviceSampleSource)
|
|
{
|
|
MessageQueue *guiMessageQueue = m_deviceSampleSource->getMessageQueueToGUI();
|
|
qDebug("DSPDeviceSourceEngine::handleInputMessages: DSPSignalNotification: guiMessageQueue: %p", guiMessageQueue);
|
|
|
|
if (guiMessageQueue)
|
|
{
|
|
DSPSignalNotification* rep = new DSPSignalNotification(*notif); // make a copy for the source GUI
|
|
guiMessageQueue->push(rep);
|
|
}
|
|
}
|
|
|
|
delete message;
|
|
}
|
|
}
|
|
}
|