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FCD Pro+ plugin: non ALSA classes to handle FCD audio for Windows build
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f4exb
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///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2016 Edouard Griffiths, F4EXB //
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// //
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// This is a pure Qt (non ALSA) FCD sound card reader for Windows build //
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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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// //
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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 <QDebug>
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#include <string.h>
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#include <errno.h>
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#include "dsp/dspcommands.h"
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#include "dsp/dspengine.h"
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#include "fcdproplusinputqt.h"
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#include "fcdproplusgui.h"
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#include "fcdproplusreader.h"
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#include "fcdtraits.h"
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#include "fcdproplusconst.h"
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MESSAGE_CLASS_DEFINITION(FCDProPlusInput::MsgConfigureFCD, Message)
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FCDProPlusInput::FCDProPlusInput() :
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m_dev(0),
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m_settings(),
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m_deviceDescription(fcd_traits<ProPlus>::displayedName)
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{
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m_FCDReader = new FCDProPlusReader(&m_sampleFifo);
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}
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FCDProPlusInput::~FCDProPlusInput()
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{
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stop();
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delete m_FCDReader;
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}
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bool FCDProPlusInput::init(const Message& cmd)
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{
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return false;
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}
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bool FCDProPlusInput::start(int device)
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{
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qDebug() << "FCDProPlusInput::start with device #" << device;
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QMutexLocker mutexLocker(&m_mutex);
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m_dev = fcdOpen(fcd_traits<ProPlus>::vendorId, fcd_traits<ProPlus>::productId, device);
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if (m_dev == 0)
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{
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qCritical("FCDProPlusInput::start: could not open FCD");
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return false;
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}
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/* Apply settings before streaming to avoid bus contention;
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* there is very little spare bandwidth on a full speed USB device.
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* Failure is harmless if no device is found
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* ... This is rubbish...*/
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//applySettings(m_settings, true);
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if(!m_sampleFifo.setSize(96000*4))
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{
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qCritical("Could not allocate SampleFifo");
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return false;
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}
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m_FCDReader->startWork();
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mutexLocker.unlock();
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applySettings(m_settings, true);
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qDebug("FCDProPlusInput::started");
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return true;
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}
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void FCDProPlusInput::stop()
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{
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QMutexLocker mutexLocker(&m_mutex);
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m_FCDReader->stopWork();
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fcdClose(m_dev);
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m_dev = 0;
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}
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const QString& FCDProPlusInput::getDeviceDescription() const
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{
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return m_deviceDescription;
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}
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int FCDProPlusInput::getSampleRate() const
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{
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return fcd_traits<ProPlus>::sampleRate;
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}
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quint64 FCDProPlusInput::getCenterFrequency() const
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{
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return m_settings.m_centerFrequency;
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}
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bool FCDProPlusInput::handleMessage(const Message& message)
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{
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if(MsgConfigureFCD::match(message))
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{
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qDebug() << "FCDProPlusInput::handleMessage: MsgConfigureFCD";
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MsgConfigureFCD& conf = (MsgConfigureFCD&) message;
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applySettings(conf.getSettings(), false);
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return true;
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}
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else
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{
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return false;
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}
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}
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void FCDProPlusInput::applySettings(const FCDProPlusSettings& settings, bool force)
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{
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bool signalChange = false;
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if ((m_settings.m_centerFrequency != settings.m_centerFrequency) || force)
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{
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qDebug() << "FCDProPlusInput::applySettings: fc: " << settings.m_centerFrequency;
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m_settings.m_centerFrequency = settings.m_centerFrequency;
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if (m_dev != 0)
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{
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set_center_freq((double) m_settings.m_centerFrequency);
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}
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signalChange = true;
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}
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if ((m_settings.m_lnaGain != settings.m_lnaGain) || force)
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{
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m_settings.m_lnaGain = settings.m_lnaGain;
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if (m_dev != 0)
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{
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set_lna_gain(settings.m_lnaGain);
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}
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}
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if ((m_settings.m_biasT != settings.m_biasT) || force)
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{
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m_settings.m_biasT = settings.m_biasT;
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if (m_dev != 0)
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{
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set_bias_t(settings.m_biasT);
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}
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}
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if ((m_settings.m_mixGain != settings.m_mixGain) || force)
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{
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m_settings.m_mixGain = settings.m_mixGain;
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if (m_dev != 0)
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{
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set_mixer_gain(settings.m_mixGain);
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}
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}
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if ((m_settings.m_ifGain != settings.m_ifGain) || force)
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{
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m_settings.m_ifGain = settings.m_ifGain;
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if (m_dev != 0)
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{
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set_if_gain(settings.m_ifGain);
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}
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}
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if ((m_settings.m_ifFilterIndex != settings.m_ifFilterIndex) || force)
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{
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m_settings.m_ifFilterIndex = settings.m_ifFilterIndex;
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if (m_dev != 0)
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{
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set_if_filter(settings.m_ifFilterIndex);
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}
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}
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if ((m_settings.m_rfFilterIndex != settings.m_rfFilterIndex) || force)
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{
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m_settings.m_rfFilterIndex = settings.m_rfFilterIndex;
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if (m_dev != 0)
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{
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set_rf_filter(settings.m_rfFilterIndex);
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}
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}
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if ((m_settings.m_LOppmTenths != settings.m_LOppmTenths) || force)
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{
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m_settings.m_LOppmTenths = settings.m_LOppmTenths;
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if (m_dev != 0)
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{
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set_lo_ppm();
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}
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}
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if ((m_settings.m_dcBlock != settings.m_dcBlock) || force)
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{
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m_settings.m_dcBlock = settings.m_dcBlock;
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DSPEngine::instance()->configureCorrections(m_settings.m_dcBlock, m_settings.m_iqImbalance);
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}
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if ((m_settings.m_iqImbalance != settings.m_iqImbalance) || force)
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{
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m_settings.m_iqImbalance = settings.m_iqImbalance;
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DSPEngine::instance()->configureCorrections(m_settings.m_dcBlock, m_settings.m_iqImbalance);
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}
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if (signalChange)
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{
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DSPSignalNotification *notif = new DSPSignalNotification(fcd_traits<ProPlus>::sampleRate, m_settings.m_centerFrequency);
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DSPEngine::instance()->getInputMessageQueue()->push(notif);
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}
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}
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void FCDProPlusInput::set_center_freq(double freq)
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{
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freq += freq*(((double) m_settings.m_LOppmTenths)/10000000.0);
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if (fcdAppSetFreq(m_dev, freq) == FCD_MODE_NONE)
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{
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qDebug("No FCD HID found for frquency change");
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}
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}
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void FCDProPlusInput::set_bias_t(bool on)
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{
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quint8 cmd = on ? 1 : 0;
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fcdAppSetParam(m_dev, FCDPROPLUS_HID_CMD_SET_BIAS_TEE, &cmd, 1);
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}
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void FCDProPlusInput::set_lna_gain(bool on)
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{
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quint8 cmd = on ? 1 : 0;
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fcdAppSetParam(m_dev, FCDPROPLUS_HID_CMD_SET_LNA_GAIN, &cmd, 1);
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}
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void FCDProPlusInput::set_mixer_gain(bool on)
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{
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quint8 cmd = on ? 1 : 0;
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fcdAppSetParam(m_dev, FCDPROPLUS_HID_CMD_SET_MIXER_GAIN, &cmd, 1);
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}
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void FCDProPlusInput::set_if_gain(int gain)
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{
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if (gain < 0)
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{
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return;
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}
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quint8 cmd_value = gain;
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if (fcdAppSetParam(m_dev, FCDPROPLUS_HID_CMD_SET_IF_GAIN, &cmd_value, 1) != FCD_MODE_APP)
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{
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qWarning() << "FCDProPlusInput::set_if_gain: failed to set at " << cmd_value;
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}
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}
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void FCDProPlusInput::set_if_filter(int filterIndex)
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{
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if ((filterIndex < 0) || (filterIndex >= FCDProPlusConstants::fcdproplus_if_filter_nb_values()))
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{
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return;
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}
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quint8 cmd_value = FCDProPlusConstants::if_filters[filterIndex].value;
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if (fcdAppSetParam(m_dev, FCDPROPLUS_HID_CMD_SET_IF_FILTER, &cmd_value, 1) != FCD_MODE_APP)
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{
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qWarning() << "FCDProPlusInput::set_if_filter: failed to set at " << cmd_value;
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}
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}
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void FCDProPlusInput::set_rf_filter(int filterIndex)
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{
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if ((filterIndex < 0) || (filterIndex >= FCDProPlusConstants::fcdproplus_rf_filter_nb_values()))
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{
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return;
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}
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quint8 cmd_value = FCDProPlusConstants::rf_filters[filterIndex].value;
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if (fcdAppSetParam(m_dev, FCDPROPLUS_HID_CMD_SET_RF_FILTER, &cmd_value, 1) != FCD_MODE_APP)
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{
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qWarning() << "FCDProPlusInput::set_rf_filter: failed to set at " << cmd_value;
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}
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}
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void FCDProPlusInput::set_lo_ppm()
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{
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set_center_freq((double) m_settings.m_centerFrequency);
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}
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