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sdrangel/plugins/samplesource/usrpinput/usrpinputgui.cpp

694 lines
23 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2017 Edouard Griffiths, F4EXB //
// Copyright (C) 2020 Jon Beniston, M7RCE //
// //
// 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 "usrpinputgui.h"
#include <QDebug>
#include <QMessageBox>
#include <QFileDialog>
#include <QResizeEvent>
#include <algorithm>
#include "ui_usrpinputgui.h"
#include "gui/colormapper.h"
#include "gui/glspectrum.h"
#include "gui/basicdevicesettingsdialog.h"
#include "dsp/dspengine.h"
#include "dsp/dspcommands.h"
#include "device/deviceapi.h"
#include "device/deviceuiset.h"
USRPInputGUI::USRPInputGUI(DeviceUISet *deviceUISet, QWidget* parent) :
DeviceGUI(parent),
ui(new Ui::USRPInputGUI),
m_settings(),
m_sampleRateMode(true),
m_sampleRate(0),
m_lastEngineState(DeviceAPI::StNotStarted),
m_doApplySettings(true),
m_forceSettings(true),
m_statusCounter(0),
m_deviceStatusCounter(0)
{
m_deviceUISet = deviceUISet;
setAttribute(Qt::WA_DeleteOnClose, true);
m_usrpInput = (USRPInput*) m_deviceUISet->m_deviceAPI->getSampleSource();
ui->setupUi(getContents());
setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
getContents()->setStyleSheet("#USRPInputGUI { background-color: rgb(64, 64, 64); }");
m_helpURL = "plugins/samplesource/usrpinput/readme.md";
float minF, maxF;
m_usrpInput->getLORange(minF, maxF);
ui->centerFrequency->setColorMapper(ColorMapper(ColorMapper::GrayGold));
ui->centerFrequency->setValueRange(7, ((uint32_t) minF)/1000, ((uint32_t) maxF)/1000); // frequency dial is in kHz
m_usrpInput->getSRRange(minF, maxF);
ui->sampleRate->setColorMapper(ColorMapper(ColorMapper::GrayGreenYellow));
ui->sampleRate->setValueRange(8, (uint32_t) minF, (uint32_t) maxF);
ui->loOffset->setColorMapper(ColorMapper(ColorMapper::GrayYellow));
ui->loOffset->setValueRange(false, 5, (int32_t)-maxF/2/1000, (int32_t)maxF/2/1000); // LO offset shouldn't be greater than half the sample rate
m_usrpInput->getLPRange(minF, maxF);
ui->lpf->setColorMapper(ColorMapper(ColorMapper::GrayYellow));
ui->lpf->setValueRange(5, (minF/1000)+1, maxF/1000);
m_usrpInput->getGainRange(minF, maxF);
ui->gain->setRange((int)minF, (int)maxF);
ui->channelNumberText->setText(tr("#%1").arg(m_usrpInput->getChannelIndex()));
ui->antenna->addItems(m_usrpInput->getRxAntennas());
ui->clockSource->addItems(m_usrpInput->getClockSources());
connect(&m_updateTimer, SIGNAL(timeout()), this, SLOT(updateHardware()));
connect(&m_statusTimer, SIGNAL(timeout()), this, SLOT(updateStatus()));
m_statusTimer.start(500);
displaySettings();
makeUIConnections();
connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()), Qt::QueuedConnection);
m_usrpInput->setMessageQueueToGUI(&m_inputMessageQueue);
connect(this, SIGNAL(customContextMenuRequested(const QPoint &)), this, SLOT(openDeviceSettingsDialog(const QPoint &)));
}
USRPInputGUI::~USRPInputGUI()
{
m_statusTimer.stop();
m_updateTimer.stop();
delete ui;
}
void USRPInputGUI::destroy()
{
delete this;
}
void USRPInputGUI::setName(const QString& name)
{
setObjectName(name);
}
QString USRPInputGUI::getName() const
{
return objectName();
}
void USRPInputGUI::resetToDefaults()
{
m_settings.resetToDefaults();
displaySettings();
m_forceSettings = true;
sendSettings();
}
qint64 USRPInputGUI::getCenterFrequency() const
{
return m_settings.m_centerFrequency;
}
void USRPInputGUI::setCenterFrequency(qint64 centerFrequency)
{
m_settings.m_centerFrequency = centerFrequency;
displaySettings();
m_settingsKeys.append("centerFrequency");
sendSettings();
}
QByteArray USRPInputGUI::serialize() const
{
return m_settings.serialize();
}
bool USRPInputGUI::deserialize(const QByteArray& data)
{
if (m_settings.deserialize(data))
{
displaySettings();
m_forceSettings = true;
sendSettings();
return true;
}
else
{
resetToDefaults();
return false;
}
}
void USRPInputGUI::resizeEvent(QResizeEvent* size)
{
adjustSize();
size->accept();
}
bool USRPInputGUI::handleMessage(const Message& message)
{
if (USRPInput::MsgConfigureUSRP::match(message))
{
const USRPInput::MsgConfigureUSRP& cfg = (USRPInput::MsgConfigureUSRP&) message;
if (cfg.getForce()) {
m_settings = cfg.getSettings();
} else {
m_settings.applySettings(cfg.getSettingsKeys(), cfg.getSettings());
}
blockApplySettings(true);
displaySettings();
blockApplySettings(false);
return true;
}
else if (DeviceUSRPShared::MsgReportBuddyChange::match(message))
{
DeviceUSRPShared::MsgReportBuddyChange& report = (DeviceUSRPShared::MsgReportBuddyChange&) message;
m_settings.m_masterClockRate = report.getMasterClockRate();
if (report.getRxElseTx()) {
m_settings.m_devSampleRate = report.getDevSampleRate();
m_settings.m_centerFrequency = report.getCenterFrequency();
m_settings.m_loOffset = report.getLOOffset();
}
blockApplySettings(true);
displaySettings();
blockApplySettings(false);
return true;
}
else if (DeviceUSRPShared::MsgReportClockSourceChange::match(message))
{
qDebug("USRPInputGUI::handleMessage MsgReportClockSourceChange");
DeviceUSRPShared::MsgReportClockSourceChange& report = (DeviceUSRPShared::MsgReportClockSourceChange&) message;
m_settings.m_clockSource = report.getClockSource();
blockApplySettings(true);
ui->clockSource->setCurrentIndex(ui->clockSource->findText(m_settings.m_clockSource));
blockApplySettings(false);
return true;
}
else if (USRPInput::MsgReportStreamInfo::match(message))
{
USRPInput::MsgReportStreamInfo& report = (USRPInput::MsgReportStreamInfo&) message;
if (report.getSuccess())
{
if (report.getActive()) {
ui->streamStatusLabel->setStyleSheet("QLabel { background-color : green; }");
} else {
ui->streamStatusLabel->setStyleSheet("QLabel { background-color : blue; }");
}
if (report.getOverruns() > 0) {
ui->overrunLabel->setStyleSheet("QLabel { background-color : red; }");
} else {
ui->overrunLabel->setStyleSheet("QLabel { background:rgb(79,79,79); }");
}
if (report.getTimeouts() > 0) {
ui->timeoutLabel->setStyleSheet("QLabel { background-color : red; }");
} else {
ui->timeoutLabel->setStyleSheet("QLabel { background:rgb(79,79,79); }");
}
}
else
{
ui->streamStatusLabel->setStyleSheet("QLabel { background:rgb(79,79,79); }");
}
return true;
}
else if (USRPInput::MsgStartStop::match(message))
{
USRPInput::MsgStartStop& notif = (USRPInput::MsgStartStop&) message;
blockApplySettings(true);
ui->startStop->setChecked(notif.getStartStop());
blockApplySettings(false);
return true;
}
else
{
return false;
}
}
void USRPInputGUI::updateFrequencyLimits()
{
// values in kHz
float minF, maxF;
qint64 deltaFrequency = m_settings.m_transverterMode ? m_settings.m_transverterDeltaFrequency/1000 : 0;
m_usrpInput->getLORange(minF, maxF);
qint64 minLimit = minF/1000 + deltaFrequency;
qint64 maxLimit = maxF/1000 + deltaFrequency;
if (m_settings.m_transverterMode)
{
minLimit = minLimit < 0 ? 0 : minLimit > 999999999 ? 999999999 : minLimit;
maxLimit = maxLimit < 0 ? 0 : maxLimit > 999999999 ? 999999999 : maxLimit;
ui->centerFrequency->setValueRange(9, minLimit, maxLimit);
}
else
{
minLimit = minLimit < 0 ? 0 : minLimit > 9999999 ? 9999999 : minLimit;
maxLimit = maxLimit < 0 ? 0 : maxLimit > 9999999 ? 9999999 : maxLimit;
ui->centerFrequency->setValueRange(7, minLimit, maxLimit);
}
qDebug("USRPInputGUI::updateFrequencyLimits: delta: %lld min: %lld max: %lld", deltaFrequency, minLimit, maxLimit);
}
void USRPInputGUI::handleInputMessages()
{
Message* message;
while ((message = m_inputMessageQueue.pop()) != 0)
{
if (DSPSignalNotification::match(*message))
{
DSPSignalNotification* notif = (DSPSignalNotification*) message;
m_sampleRate = notif->getSampleRate();
m_deviceCenterFrequency = notif->getCenterFrequency();
qDebug("USRPInputGUI::handleInputMessages: DSPSignalNotification: SampleRate: %d, CenterFrequency: %llu", notif->getSampleRate(), notif->getCenterFrequency());
updateSampleRateAndFrequency();
delete message;
}
else if (USRPInput::MsgConfigureUSRP::match(*message))
{
const USRPInput::MsgConfigureUSRP& cfg = (USRPInput::MsgConfigureUSRP&) *message;
if (cfg.getForce()) {
m_settings = cfg.getSettings();
} else {
m_settings.applySettings(cfg.getSettingsKeys(), cfg.getSettings());
}
displaySettings();
delete message;
}
else
{
if (handleMessage(*message)) {
delete message;
}
}
}
}
void USRPInputGUI::updateSampleRate()
{
uint32_t sr = m_settings.m_devSampleRate;
int cr = m_settings.m_masterClockRate;
if (sr < 100000000) {
ui->sampleRateLabel->setText(tr("%1k").arg(QString::number(sr / 1000.0f, 'g', 5)));
} else {
ui->sampleRateLabel->setText(tr("%1M").arg(QString::number(sr / 1000000.0f, 'g', 5)));
}
if (cr < 0) {
ui->masterClockRateLabel->setText("-");
} else if (cr < 100000000) {
ui->masterClockRateLabel->setText(tr("%1k").arg(QString::number(cr / 1000.0f, 'g', 5)));
} else {
ui->masterClockRateLabel->setText(tr("%1M").arg(QString::number(cr / 1000000.0f, 'g', 5)));
}
// LO offset shouldn't be greater than half the sample rate
ui->loOffset->setValueRange(false, 5, -(int32_t)sr/2/1000, (int32_t)sr/2/1000);
}
void USRPInputGUI::updateSampleRateAndFrequency()
{
m_deviceUISet->getSpectrum()->setSampleRate(m_sampleRate);
m_deviceUISet->getSpectrum()->setCenterFrequency(m_deviceCenterFrequency);
displaySampleRate();
}
void USRPInputGUI::displaySampleRate()
{
float minF, maxF;
m_usrpInput->getSRRange(minF, maxF);
ui->sampleRate->blockSignals(true);
if (m_sampleRateMode)
{
ui->sampleRateMode->setStyleSheet("QToolButton { background:rgb(60,60,60); }");
ui->sampleRateMode->setText("SR");
ui->sampleRate->setValueRange(8, (uint32_t) minF, (uint32_t) maxF);
ui->sampleRate->setValue(m_settings.m_devSampleRate);
ui->sampleRate->setToolTip("Device to host sample rate (S/s)");
ui->deviceRateText->setToolTip("Baseband sample rate (S/s)");
uint32_t basebandSampleRate = m_settings.m_devSampleRate/(1<<m_settings.m_log2SoftDecim);
ui->deviceRateText->setText(tr("%1k").arg(QString::number(basebandSampleRate / 1000.0f, 'g', 5)));
}
else
{
ui->sampleRateMode->setStyleSheet("QToolButton { background:rgb(50,50,50); }");
ui->sampleRateMode->setText("BB");
ui->sampleRate->setValueRange(8, (uint32_t) minF/(1<<m_settings.m_log2SoftDecim), (uint32_t) maxF/(1<<m_settings.m_log2SoftDecim));
ui->sampleRate->setValue(m_settings.m_devSampleRate/(1<<m_settings.m_log2SoftDecim));
ui->sampleRate->setToolTip("Baseband sample rate (S/s)");
ui->deviceRateText->setToolTip("Device to host sample rate (S/s)");
ui->deviceRateText->setText(tr("%1k").arg(QString::number(m_settings.m_devSampleRate / 1000.0f, 'g', 5)));
}
ui->sampleRate->blockSignals(false);
}
void USRPInputGUI::displaySettings()
{
ui->transverter->setDeltaFrequency(m_settings.m_transverterDeltaFrequency);
ui->transverter->setDeltaFrequencyActive(m_settings.m_transverterMode);
ui->clockSource->setCurrentIndex(ui->clockSource->findText(m_settings.m_clockSource));
updateFrequencyLimits();
setCenterFrequencyDisplay();
displaySampleRate();
ui->dcOffset->setChecked(m_settings.m_dcBlock);
ui->iqImbalance->setChecked(m_settings.m_iqCorrection);
ui->swDecim->setCurrentIndex(m_settings.m_log2SoftDecim);
updateSampleRate();
ui->lpf->setValue(m_settings.m_lpfBW / 1000);
ui->loOffset->setValue(m_settings.m_loOffset / 1000);
ui->gain->setValue(m_settings.m_gain);
ui->gainText->setText(tr("%1").arg(m_settings.m_gain));
ui->antenna->setCurrentIndex(ui->antenna->findText(m_settings.m_antennaPath));
ui->gainMode->setCurrentIndex((int) m_settings.m_gainMode);
if (m_settings.m_gainMode == USRPInputSettings::GAIN_AUTO) {
ui->gain->setEnabled(false);
} else {
ui->gain->setEnabled(true);
}
}
void USRPInputGUI::setCenterFrequencyDisplay()
{
int64_t centerFrequency = m_settings.m_centerFrequency;
ui->centerFrequency->setToolTip(QString("Main center frequency in kHz (LO: %1 kHz)").arg(centerFrequency/1000));
ui->centerFrequency->blockSignals(true);
ui->centerFrequency->setValue(centerFrequency < 0 ? 0 : (uint64_t) centerFrequency/1000); // kHz
ui->centerFrequency->blockSignals(false);
}
void USRPInputGUI::setCenterFrequencySetting(uint64_t kHzValue)
{
int64_t centerFrequency = kHzValue*1000;
m_settings.m_centerFrequency = centerFrequency < 0 ? 0 : (uint64_t) centerFrequency;
ui->centerFrequency->setToolTip(QString("Main center frequency in kHz (LO: %1 kHz)").arg(centerFrequency/1000));
}
void USRPInputGUI::sendSettings()
{
if (!m_updateTimer.isActive()) {
m_updateTimer.start(100);
}
}
void USRPInputGUI::updateHardware()
{
if (m_doApplySettings)
{
qDebug() << "USRPInputGUI::updateHardware";
USRPInput::MsgConfigureUSRP* message = USRPInput::MsgConfigureUSRP::create(m_settings, m_settingsKeys, m_forceSettings);
m_usrpInput->getInputMessageQueue()->push(message);
m_forceSettings = false;
m_settingsKeys.clear();
m_updateTimer.stop();
}
}
void USRPInputGUI::updateStatus()
{
int state = m_deviceUISet->m_deviceAPI->state();
if(m_lastEngineState != state)
{
switch(state)
{
case DeviceAPI::StNotStarted:
ui->startStop->setStyleSheet("QToolButton { background:rgb(79,79,79); }");
break;
case DeviceAPI::StIdle:
ui->startStop->setStyleSheet("QToolButton { background-color : blue; }");
break;
case DeviceAPI::StRunning:
ui->startStop->setStyleSheet("QToolButton { background-color : green; }");
break;
case DeviceAPI::StError:
ui->startStop->setStyleSheet("QToolButton { background-color : red; }");
QMessageBox::information(this, tr("Message"), m_deviceUISet->m_deviceAPI->errorMessage());
break;
default:
break;
}
m_lastEngineState = state;
}
if (m_statusCounter < 1)
{
m_statusCounter++;
}
else
{
USRPInput::MsgGetStreamInfo* message = USRPInput::MsgGetStreamInfo::create();
m_usrpInput->getInputMessageQueue()->push(message);
m_statusCounter = 0;
}
if (m_deviceStatusCounter < 10)
{
m_deviceStatusCounter++;
}
else
{
if (m_deviceUISet->m_deviceAPI->isBuddyLeader())
{
USRPInput::MsgGetDeviceInfo* message = USRPInput::MsgGetDeviceInfo::create();
m_usrpInput->getInputMessageQueue()->push(message);
}
m_deviceStatusCounter = 0;
}
}
void USRPInputGUI::blockApplySettings(bool block)
{
m_doApplySettings = !block;
}
void USRPInputGUI::on_startStop_toggled(bool checked)
{
if (m_doApplySettings)
{
USRPInput::MsgStartStop *message = USRPInput::MsgStartStop::create(checked);
m_usrpInput->getInputMessageQueue()->push(message);
}
}
void USRPInputGUI::on_centerFrequency_changed(quint64 value)
{
setCenterFrequencySetting(value);
m_settingsKeys.append("centerFrequency");
sendSettings();
}
void USRPInputGUI::on_dcOffset_toggled(bool checked)
{
m_settings.m_dcBlock = checked;
m_settingsKeys.append("dcBlock");
sendSettings();
}
void USRPInputGUI::on_iqImbalance_toggled(bool checked)
{
m_settings.m_iqCorrection = checked;
m_settingsKeys.append("iqCorrection");
sendSettings();
}
void USRPInputGUI::on_sampleRate_changed(quint64 value)
{
if (m_sampleRateMode) {
m_settings.m_devSampleRate = value;
} else {
m_settings.m_devSampleRate = value * (1 << m_settings.m_log2SoftDecim);
}
updateSampleRate();
m_settingsKeys.append("devSampleRate");
sendSettings();
}
void USRPInputGUI::on_swDecim_currentIndexChanged(int index)
{
if ((index <0) || (index > 6)) {
return;
}
m_settings.m_log2SoftDecim = index;
m_settingsKeys.append("log2SoftDecim");
displaySampleRate();
if (m_sampleRateMode) {
m_settings.m_devSampleRate = ui->sampleRate->getValueNew();
} else {
m_settings.m_devSampleRate = ui->sampleRate->getValueNew() * (1 << m_settings.m_log2SoftDecim);
}
m_settingsKeys.append("devSampleRate");
sendSettings();
}
void USRPInputGUI::on_lpf_changed(quint64 value)
{
m_settings.m_lpfBW = value * 1000;
m_settingsKeys.append("lpfBW");
sendSettings();
}
void USRPInputGUI::on_loOffset_changed(qint64 value)
{
m_settings.m_loOffset = value * 1000;
m_settingsKeys.append("loOffset");
sendSettings();
}
void USRPInputGUI::on_gainMode_currentIndexChanged(int index)
{
m_settings.m_gainMode = (USRPInputSettings::GainMode) index;
m_settingsKeys.append("gainMode");
if (index == 0) {
ui->gain->setEnabled(false);
} else {
ui->gain->setEnabled(true);
}
sendSettings();
}
void USRPInputGUI::on_gain_valueChanged(int value)
{
m_settings.m_gain = value;
ui->gainText->setText(tr("%1").arg(m_settings.m_gain));
m_settingsKeys.append("gain");
sendSettings();
}
void USRPInputGUI::on_antenna_currentIndexChanged(int index)
{
(void) index;
m_settings.m_antennaPath = ui->antenna->currentText();
m_settingsKeys.append("antennaPath");
sendSettings();
}
void USRPInputGUI::on_clockSource_currentIndexChanged(int index)
{
(void) index;
m_settings.m_clockSource = ui->clockSource->currentText();
m_settingsKeys.append("clockSource");
sendSettings();
}
void USRPInputGUI::on_transverter_clicked()
{
m_settings.m_transverterMode = ui->transverter->getDeltaFrequencyAcive();
m_settings.m_transverterDeltaFrequency = ui->transverter->getDeltaFrequency();
qDebug("USRPInputGUI::on_transverter_clicked: %lld Hz %s", m_settings.m_transverterDeltaFrequency, m_settings.m_transverterMode ? "on" : "off");
updateFrequencyLimits();
setCenterFrequencySetting(ui->centerFrequency->getValueNew());
m_settingsKeys.append("transverterMode");
m_settingsKeys.append("transverterDeltaFrequency");
m_settingsKeys.append("centerFrequency");
sendSettings();
}
void USRPInputGUI::on_sampleRateMode_toggled(bool checked)
{
m_sampleRateMode = checked;
displaySampleRate();
}
void USRPInputGUI::openDeviceSettingsDialog(const QPoint& p)
{
if (m_contextMenuType == ContextMenuDeviceSettings)
{
BasicDeviceSettingsDialog dialog(this);
dialog.setUseReverseAPI(m_settings.m_useReverseAPI);
dialog.setReverseAPIAddress(m_settings.m_reverseAPIAddress);
dialog.setReverseAPIPort(m_settings.m_reverseAPIPort);
dialog.setReverseAPIDeviceIndex(m_settings.m_reverseAPIDeviceIndex);
dialog.move(p);
dialog.exec();
m_settings.m_useReverseAPI = dialog.useReverseAPI();
m_settings.m_reverseAPIAddress = dialog.getReverseAPIAddress();
m_settings.m_reverseAPIPort = dialog.getReverseAPIPort();
m_settings.m_reverseAPIDeviceIndex = dialog.getReverseAPIDeviceIndex();
m_settingsKeys.append("useReverseAPI");
m_settingsKeys.append("reverseAPIAddress");
m_settingsKeys.append("reverseAPIPort");
m_settingsKeys.append("reverseAPIDeviceIndex");
sendSettings();
}
resetContextMenuType();
}
void USRPInputGUI::makeUIConnections()
{
QObject::connect(ui->startStop, &ButtonSwitch::toggled, this, &USRPInputGUI::on_startStop_toggled);
QObject::connect(ui->centerFrequency, &ValueDial::changed, this, &USRPInputGUI::on_centerFrequency_changed);
QObject::connect(ui->dcOffset, &ButtonSwitch::toggled, this, &USRPInputGUI::on_dcOffset_toggled);
QObject::connect(ui->iqImbalance, &ButtonSwitch::toggled, this, &USRPInputGUI::on_iqImbalance_toggled);
QObject::connect(ui->sampleRate, &ValueDial::changed, this, &USRPInputGUI::on_sampleRate_changed);
QObject::connect(ui->swDecim, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &USRPInputGUI::on_swDecim_currentIndexChanged);
QObject::connect(ui->lpf, &ValueDial::changed, this, &USRPInputGUI::on_lpf_changed);
QObject::connect(ui->loOffset, &ValueDialZ::changed, this, &USRPInputGUI::on_loOffset_changed);
QObject::connect(ui->gainMode, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &USRPInputGUI::on_gainMode_currentIndexChanged);
QObject::connect(ui->gain, &QSlider::valueChanged, this, &USRPInputGUI::on_gain_valueChanged);
QObject::connect(ui->antenna, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &USRPInputGUI::on_antenna_currentIndexChanged);
QObject::connect(ui->clockSource, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &USRPInputGUI::on_clockSource_currentIndexChanged);
QObject::connect(ui->transverter, &TransverterButton::clicked, this, &USRPInputGUI::on_transverter_clicked);
QObject::connect(ui->sampleRateMode, &QToolButton::toggled, this, &USRPInputGUI::on_sampleRateMode_toggled);
}