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This commit is contained in:
John Greb 2014-11-06 21:03:17 +00:00
parent 86f256dbc4
commit a476f8a6f0
10 changed files with 53 additions and 89 deletions
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10
plugins/samplesource/v4l/v4lgui.cpp
View File

@ -95,7 +95,7 @@ bool V4LGui::handleMessage(Message* message)
void V4LGui::displaySettings()
{
ui->centerFrequency->setValue(m_generalSettings.m_centerFrequency / 1000);
ui->decimation->setValue(m_settings.m_decimation);
ui->samplerate->setValue(m_settings.m_samplerate);
if(m_gains.size() > 0) {
int dist = abs(m_settings.m_gain - m_gains[0]);
@ -139,10 +139,12 @@ void V4LGui::on_gain_valueChanged(int value)
sendSettings();
}
void V4LGui::on_decimation_valueChanged(int value)
void V4LGui::on_samplerate_valueChanged(int value)
{
ui->decimationText->setText(tr("1:%1").arg(1 << value));
m_settings.m_decimation = value;
int Rates[] = { 2500, 1536, 3072, 288, 1000, 0};
int newrate = Rates[value];
ui->samplerateText->setText(tr("%1kHz").arg(newrate));
m_settings.m_samplerate = 1000 * newrate;
sendSettings();
}

2
plugins/samplesource/v4l/v4lgui.h
View File

@ -45,7 +45,7 @@ private:
private slots:
void on_centerFrequency_changed(quint64 value);
void on_gain_valueChanged(int value);
void on_decimation_valueChanged(int value);
void on_samplerate_valueChanged(int value);
void updateHardware();
};

8
plugins/samplesource/v4l/v4lgui.ui
View File

@ -106,9 +106,9 @@
<number>3</number>
</property>
<item row="0" column="1">
<widget class="QSlider" name="decimation">
<widget class="QSlider" name="samplerate">
<property name="toolTip">
<string>Signal decimation factor</string>
<string>Device Samplerate</string>
</property>
<property name="maximum">
<number>4</number>
@ -130,12 +130,12 @@
</sizepolicy>
</property>
<property name="text">
<string>Zoom Out</string>
<string>Samplerate</string>
</property>
</widget>
</item>
<item row="0" column="2">
<widget class="QLabel" name="decimationText">
<widget class="QLabel" name="samplerateText">
<property name="minimumSize">
<size>
<width>40</width>

23
plugins/samplesource/v4l/v4linput.cpp
View File

@ -19,7 +19,6 @@
#include <errno.h>
#include "v4linput.h"
#include "v4lthread.h"
#include "v4lsource.h"
#include "v4lgui.h"
#include "util/simpleserializer.h"
@ -28,21 +27,21 @@ MESSAGE_CLASS_DEFINITION(V4LInput::MsgReportV4L, Message)
V4LInput::Settings::Settings() :
m_gain(0),
m_decimation(0)
m_samplerate(2500000)
{
}
void V4LInput::Settings::resetToDefaults()
{
m_gain = 0;
m_decimation = 0;
m_samplerate = 2500000;
}
QByteArray V4LInput::Settings::serialize() const
{
SimpleSerializer s(1);
s.writeS32(1, m_gain);
s.writeS32(2, m_decimation);
s.writeS32(2, m_samplerate);
return s.final();
}
@ -57,7 +56,7 @@ bool V4LInput::Settings::deserialize(const QByteArray& data)
if(d.getVersion() == 1) {
d.readS32(1, &m_gain, 0);
d.readS32(2, &m_decimation, 0);
d.readS32(2, &m_samplerate, 0);
return true;
} else {
resetToDefaults();
@ -187,7 +186,9 @@ const QString& V4LInput::getDeviceDescription() const
int V4LInput::getSampleRate() const
{
return 96000 * (1 << m_settings.m_decimation);
int result = m_settings.m_samplerate / 4;
if (result > 200000) result /= 4;
return result;
}
quint64 V4LInput::getCenterFrequency() const
@ -215,18 +216,18 @@ bool V4LInput::applySettings(const GeneralSettings& generalSettings, const Setti
if((m_generalSettings.m_centerFrequency != generalSettings.m_centerFrequency) || force) {
m_generalSettings.m_centerFrequency = generalSettings.m_centerFrequency;
if(m_dev > 0)
V4LInput::set_center_freq( (double)(m_generalSettings.m_centerFrequency
+ 384000) ); // samplerate/4
V4LInput::set_center_freq( (double)(generalSettings.m_centerFrequency
+ (settings.m_samplerate / 4) ));
}
if((m_settings.m_gain != settings.m_gain) || force) {
m_settings.m_gain = settings.m_gain;
if(m_dev > 0)
V4LInput::set_tuner_gain((double)m_settings.m_gain);
}
if((m_settings.m_decimation != settings.m_decimation) || force) {
m_settings.m_decimation = settings.m_decimation;
if((m_settings.m_samplerate != settings.m_samplerate) || force) {
m_settings.m_samplerate = settings.m_samplerate;
if(m_dev > 0)
m_V4LThread->setDecimation(m_settings.m_decimation);
m_V4LThread->setSamplerate((double)settings.m_samplerate);
}
return true;
}

12
plugins/samplesource/v4l/v4linput.h
View File

@ -20,7 +20,11 @@
#include "dsp/samplesource/samplesource.h"
#include <QString>
#include "v4lsource.h"
struct v4l_buffer {
void *start;
size_t length;
};
class V4LThread;
@ -28,7 +32,7 @@ class V4LInput : public SampleSource {
public:
struct Settings {
qint32 m_gain;
qint32 m_decimation;
qint32 m_samplerate;
Settings();
void resetToDefaults();
@ -96,9 +100,7 @@ public:
void set_center_freq(double freq);
void set_bandwidth(double bandwidth);
void set_tuner_gain(double gain);
int work(int noutput_items,
void* input_items,
void* output_items);
int work(int noutput_items, qint16* output_items);
private:
int fd;
quint32 pixelformat;

8
plugins/samplesource/v4l/v4lplugin.cpp
View File

@ -35,7 +35,7 @@ void V4LPlugin::initPlugin(PluginAPI* pluginAPI)
PluginInterface::SampleSourceDevices V4LPlugin::enumSampleSources()
{
SampleSourceDevices result;
int count = rtlsdr_get_device_count();
int count = 1; //rtlsdr_get_device_count();
char vendor[256];
char product[256];
char serial[256];
@ -45,9 +45,9 @@ PluginInterface::SampleSourceDevices V4LPlugin::enumSampleSources()
product[0] = '\0';
serial[0] = '\0';
if(rtlsdr_get_device_usb_strings((uint32_t)i, vendor, product, serial) != 0)
continue;
QString displayedName(QString("SDR #%1 (%2 #%3)").arg(i + 1).arg(product).arg(serial));
// if(rtlsdr_get_device_usb_strings((uint32_t)i, vendor, product, serial) != 0)
// continue;
QString displayedName(QString("SDR #%1").arg(i + 1));
SimpleSerializer s(1);
s.writeS32(1, i);
result.append(SampleSourceDevice(displayedName, "org.osmocom.sdr.samplesource.v4l", s.final()));

18
plugins/samplesource/v4l/v4lsource.cpp
View File

@ -17,8 +17,16 @@
* Boston, MA 02110-1301, USA.
*/
#include "v4lsource.h"
#include "v4linput.h"
#include <string.h>
#include <errno.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <uapi/linux/videodev2.h>
#include "/usr/local/include/libv4l2.h"
#include <fcntl.h>
#include <sys/mman.h>
/* Control classes */
#define V4L2_CTRL_CLASS_USER 0x00980000 /* Old-style 'user' controls */
@ -47,7 +55,7 @@ static void xioctl(int fh, unsigned long int request, void *arg)
ret = v4l2_ioctl(fh, request, arg);
} while (ret == -1 && ((errno == EINTR) || (errno == EAGAIN)));
if (ret == -1) {
fprintf(stderr, "error %d\n", errno);
qCritical("error %d\n", errno);
}
}
@ -77,7 +85,7 @@ V4LInput::OpenSource(const char *filename)
fmt.fmt.sdr.pixelformat = pixelformat;
xioctl(fd, VIDIOC_S_FMT, &fmt);
if (fmt.fmt.sdr.pixelformat != pixelformat) {
printf("Libv4l didn't accept FLOAT format. Cannot proceed. Pixelformat %4.4s\n",
qCritical("Libv4l didn't accept FLOAT format. Cannot proceed. Pixelformat %4.4s\n",
(char *)&fmt.fmt.sdr.pixelformat);
}
@ -211,9 +219,7 @@ V4LInput::set_tuner_gain(double gain)
}
int
V4LInput::work(int noutput_items,
void* input_items,
void* output_items)
V4LInput::work(int noutput_items, int16_t* output_items)
{
//complex *out = (complex *) output_items;
int ret;

40
plugins/samplesource/v4l/v4lsource.h
View File

@ -1,40 +0,0 @@
/*
* Copyright 2013 Antti Palosaari <crope@iki.fi>
*
* This 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; either version 3, or (at your option)
* any later version.
*
* This software 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef INCLUDED_KERNEL_LIBV4L2_X_IMPL_H
#define INCLUDED_KERNEL_LIBV4L2_X_IMPL_H
#include <string.h>
#include <errno.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <uapi/linux/videodev2.h>
#include "/usr/local/include/libv4l2.h"
#include "fcntl.h"
#include <sys/mman.h>
struct v4l_buffer {
void *start;
size_t length;
};
#endif /* INCLUDED_KERNEL_LIBV4L2_X_IMPL_H */

15
plugins/samplesource/v4l/v4lthread.cpp
View File

@ -27,10 +27,9 @@ V4LThread::V4LThread(SampleFifo* sampleFifo, QObject* parent) :
m_running(false),
m_dev(1),
m_convertBuffer(BLOCKSIZE),
m_sampleFifo(sampleFifo),
m_decimation(2)
m_sampleFifo(sampleFifo)
{
m_localdecimation = 0;
m_samplerate = 2500000;
}
V4LThread::~V4LThread()
@ -53,9 +52,9 @@ void V4LThread::stopWork()
wait();
}
void V4LThread::setDecimation(int decimation)
void V4LThread::setSamplerate(int samplerate)
{
m_decimation = decimation;
m_samplerate = samplerate;
}
void V4LThread::run()
@ -140,12 +139,8 @@ void V4LThread::callback(const quint8* buf, qint32 len)
{
qint16 xreal, yimag, phase;
SampleVector::iterator it = m_convertBuffer.begin();
int decimationFactor[] = {1, 1, 1, 2, 4, 0};
if (++m_localdecimation < decimationFactor[m_decimation]) return;
m_localdecimation = 0;
switch(4 - m_decimation) {
switch(4) {
case 0: // 1:1 = no decimation
// just rotation
phase = -(1<<2);

6
plugins/samplesource/v4l/v4lthread.h
View File

@ -34,7 +34,7 @@ public:
void startWork();
void stopWork();
void setDecimation(int decimation);
void setSamplerate(int samplerate);
private:
QMutex m_startWaitMutex;
@ -44,9 +44,7 @@ private:
int m_dev;
SampleVector m_convertBuffer;
SampleFifo* m_sampleFifo;
int m_decimation;
int m_localdecimation;
int m_samplerate;
void run();