FunCube Pro input: implemented transverter feature

plugins/samplesource/fcdpro/fcdprogui.cpp

@@ -25,6 +25,7 @@
 
 #include <device/devicesourceapi.h>
 #include "fcdproconst.h"
+#include "fcdtraits.h"
 
 FCDProGui::FCDProGui(DeviceSourceAPI *deviceAPI, QWidget* parent) :
 	QWidget(parent),
@@ -38,7 +39,7 @@ FCDProGui::FCDProGui(DeviceSourceAPI *deviceAPI, QWidget* parent) :
 
 	ui->setupUi(this);
 	ui->centerFrequency->setColorMapper(ColorMapper(ColorMapper::GrayGold));
-	ui->centerFrequency->setValueRange(7, 64000U, 1700000U);
+    updateFrequencyLimits();
 
 	ui->lnaGain->clear();
 	for (int i = 0; i < FCDProConstants::fcdpro_lna_gain_nb_values(); i++)
@@ -237,8 +238,26 @@ void FCDProGui::updateSampleRateAndFrequency()
     ui->deviceRateText->setText(tr("%1k").arg((float)m_sampleRate / 1000));
 }
 
+void FCDProGui::updateFrequencyLimits()
+{
+    // values in kHz
+    qint64 deltaFrequency = m_settings.m_transverterMode ? m_settings.m_transverterDeltaFrequency/1000 : 0;
+    qint64 minLimit = fcd_traits<Pro>::loLowLimitFreq/1000 + deltaFrequency;
+    qint64 maxLimit = fcd_traits<Pro>::loHighLimitFreq/1000 + deltaFrequency;
+
+    minLimit = minLimit < 0 ? 0 : minLimit > 9999999 ? 9999999 : minLimit;
+    maxLimit = maxLimit < 0 ? 0 : maxLimit > 9999999 ? 9999999 : maxLimit;
+
+    qDebug("FCDProGui::updateFrequencyLimits: delta: %lld min: %lld max: %lld", deltaFrequency, minLimit, maxLimit);
+
+    ui->centerFrequency->setValueRange(7, minLimit, maxLimit);
+}
+
 void FCDProGui::displaySettings()
 {
+    ui->transverter->setDeltaFrequency(m_settings.m_transverterDeltaFrequency);
+    ui->transverter->setDeltaFrequencyActive(m_settings.m_transverterMode);
+    updateFrequencyLimits();
 	ui->centerFrequency->setValue(m_settings.m_centerFrequency / 1000);
 	ui->ppm->setValue(m_settings.m_LOppmTenths);
 	ui->ppmText->setText(QString("%1").arg(QString::number(m_settings.m_LOppmTenths/10.0, 'f', 1)));
@@ -440,6 +459,16 @@ void FCDProGui::on_record_toggled(bool checked)
     m_sampleSource->getInputMessageQueue()->push(message);
 }
 
+void FCDProGui::on_transverter_clicked()
+{
+    m_settings.m_transverterMode = ui->transverter->getDeltaFrequencyAcive();
+    m_settings.m_transverterDeltaFrequency = ui->transverter->getDeltaFrequency();
+    qDebug("FCDProGui::on_transverter_clicked: %lld Hz %s", m_settings.m_transverterDeltaFrequency, m_settings.m_transverterMode ? "on" : "off");
+    updateFrequencyLimits();
+    m_settings.m_centerFrequency = ui->centerFrequency->getValueNew()*1000;
+    sendSettings();
+}
+
 void FCDProGui::updateStatus()
 {
     int state = m_deviceAPI->state();

plugins/samplesource/fcdpro/fcdprogui.h

@@ -68,6 +68,7 @@ private:
 	void displaySettings();
 	void sendSettings();
 	void updateSampleRateAndFrequency();
+    void updateFrequencyLimits();
 
 private slots:
     void handleInputMessages();
@@ -95,6 +96,7 @@ private slots:
 	void on_setDefaults_clicked(bool checked);
 	void on_startStop_toggled(bool checked);
 	void on_record_toggled(bool checked);
+    void on_transverter_clicked();
 	void updateHardware();
 	void updateStatus();
 };

plugins/samplesource/fcdpro/fcdprogui.ui

@@ -6,20 +6,20 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>270</width>
-    <height>335</height>
+    <width>320</width>
+    <height>350</height>
    </rect>
   </property>
   <property name="sizePolicy">
-   <sizepolicy hsizetype="Preferred" vsizetype="Maximum">
+   <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
     <horstretch>0</horstretch>
     <verstretch>0</verstretch>
    </sizepolicy>
   </property>
   <property name="minimumSize">
    <size>
-    <width>270</width>
-    <height>335</height>
+    <width>320</width>
+    <height>350</height>
    </size>
   </property>
   <property name="font">
@@ -238,6 +238,22 @@
        </property>
       </widget>
      </item>
+     <item>
+      <widget class="TransverterButton" name="transverter">
+       <property name="maximumSize">
+        <size>
+         <width>24</width>
+         <height>24</height>
+        </size>
+       </property>
+       <property name="toolTip">
+        <string>Transverter frequency translation dialog</string>
+       </property>
+       <property name="text">
+        <string>X</string>
+       </property>
+      </widget>
+     </item>
     </layout>
    </item>
    <item>
@@ -484,6 +500,11 @@
    <extends>QToolButton</extends>
    <header>gui/buttonswitch.h</header>
   </customwidget>
+  <customwidget>
+   <class>TransverterButton</class>
+   <extends>QPushButton</extends>
+   <header>gui/transverterbutton.h</header>
+  </customwidget>
  </customwidgets>
  <resources>
   <include location="../../../sdrbase/resources/res.qrc"/>

plugins/samplesource/fcdpro/fcdproinput.cpp

@@ -201,16 +201,23 @@ void FCDProInput::applySettings(const FCDProSettings& settings, bool force)
 {
 	bool signalChange = false;
 
-	if ((m_settings.m_centerFrequency != settings.m_centerFrequency) || force)
+	if (force || (m_settings.m_centerFrequency != settings.m_centerFrequency)
+            || (m_settings.m_transverterMode != settings.m_transverterMode)
+            || (m_settings.m_transverterDeltaFrequency != settings.m_transverterDeltaFrequency))
 	{
-		qDebug() << "FCDProInput::applySettings: fc: " << settings.m_centerFrequency;
+        qint64 deviceCenterFrequency = settings.m_centerFrequency;
+        deviceCenterFrequency -= settings.m_transverterMode ? settings.m_transverterDeltaFrequency : 0;
+        deviceCenterFrequency = deviceCenterFrequency < 0 ? 0 : deviceCenterFrequency;
+
+        if (m_dev != 0)
+        {
+            set_center_freq((double) deviceCenterFrequency);
+        }
+
+        qDebug() << "FCDProInput::applySettings: center freq: " << settings.m_centerFrequency << " Hz"
+                << " device center freq: " << deviceCenterFrequency << " Hz";
+
 		m_settings.m_centerFrequency = settings.m_centerFrequency;
-
-		if (m_dev != 0)
-		{
-			set_center_freq((double) m_settings.m_centerFrequency);
-		}
-
 		signalChange = true;
 	}
 

plugins/samplesource/fcdpro/fcdprosettings.cpp

@@ -45,6 +45,8 @@ void FCDProSettings::resetToDefaults()
 	m_ifFilterIndex = 0;
 	m_gain5Index = 0;
 	m_gain6Index = 0;
+    m_transverterMode = false;
+    m_transverterDeltaFrequency = 0;
 }
 
 QByteArray FCDProSettings::serialize() const
@@ -70,6 +72,8 @@ QByteArray FCDProSettings::serialize() const
 	s.writeS32(17, m_ifFilterIndex);
 	s.writeS32(18, m_gain5Index);
 	s.writeS32(19, m_gain6Index);
+    s.writeBool(20, m_transverterMode);
+    s.writeS64(21, m_transverterDeltaFrequency);
 
 	return s.final();
 }
@@ -105,6 +109,8 @@ bool FCDProSettings::deserialize(const QByteArray& data)
 		d.readS32(17, &m_ifFilterIndex, 0);
 		d.readS32(18, &m_gain5Index, 0);
 		d.readS32(19, &m_gain6Index, 0);
+        d.readBool(20, &m_transverterMode, false);
+        d.readS64(21, &m_transverterDeltaFrequency, 0);
 
 		return true;
 	}

plugins/samplesource/fcdpro/fcdprosettings.h

@@ -38,6 +38,8 @@ struct FCDProSettings {
 	qint32 m_gain6Index;
 	bool m_dcBlock;
 	bool m_iqCorrection;
+    bool m_transverterMode;
+    qint64 m_transverterDeltaFrequency;
 
 	FCDProSettings();
 	void resetToDefaults();