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Code Issues Projects Releases Wiki Activity

Experimental Kernel swradio driver.

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This commit is contained in:
John Greb
2014-11-05 21:19:25 +00:00
parent 62656fc45b
commit 86f256dbc4
8 changed files with 79 additions and 100 deletions
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plugins/samplesource/v4l/v4linput.cpp
+26 -25
View File
@@ -19,6 +19,7 @@
#include <errno.h>
#include "v4linput.h"
#include "v4lthread.h"
#include "v4lsource.h"
#include "v4lgui.h"
#include "util/simpleserializer.h"
@@ -67,7 +68,7 @@ bool V4LInput::Settings::deserialize(const QByteArray& data)
V4LInput::V4LInput(MessageQueue* msgQueueToGUI) :
SampleSource(msgQueueToGUI),
m_settings(),
m_dev(NULL),
m_dev(0),
m_V4LThread(NULL),
m_deviceDescription()
{
@@ -82,7 +83,7 @@ bool V4LInput::startInput(int device)
{
QMutexLocker mutexLocker(&m_mutex);
if(m_dev != NULL)
if(m_dev > 0)
stopInput();
char vendor[256];
@@ -91,19 +92,23 @@ bool V4LInput::startInput(int device)
int res;
int numberOfGains;
if(!m_sampleFifo.setSize(524288)) {
vendor[0] = '\0';
product[0] = '\0';
serial[0] = '\0';
if(!m_sampleFifo.setSize(524288)) { // fraction of samplerate
qCritical("Could not allocate SampleFifo");
return false;
}
if((res = rtlsdr_open(&m_dev, device)) < 0) {
qCritical("could not open RTLSDR #%d: %s", device, strerror(errno));
OpenSource("/dev/swradio0");
if (m_dev == 0) {
qCritical("could not open SDR");
return false;
}
vendor[0] = '\0';
product[0] = '\0';
serial[0] = '\0';
m_dev = device;
/*
if((res = rtlsdr_get_usb_strings(m_dev, vendor, product, serial)) < 0) {
qCritical("error accessing USB device");
goto failed;
@@ -139,8 +144,8 @@ bool V4LInput::startInput(int device)
qCritical("could not reset USB EP buffers: %s", strerror(errno));
goto failed;
}
if((m_V4LThread = new V4LThread(m_dev, &m_sampleFifo)) == NULL) {
*/
if((m_V4LThread = new V4LThread(&m_sampleFifo)) == NULL) {
qFatal("out of memory");
goto failed;
}
@@ -149,7 +154,7 @@ bool V4LInput::startInput(int device)
mutexLocker.unlock();
applySettings(m_generalSettings, m_settings, true);
qDebug("RTLSDRInput: start");
qDebug("V4LInput: start");
MsgReportV4L::create(m_gains)->submit(m_guiMessageQueue);
return true;
@@ -168,9 +173,9 @@ void V4LInput::stopInput()
delete m_V4LThread;
m_V4LThread = NULL;
}
if(m_dev != NULL) {
rtlsdr_close(m_dev);
m_dev = NULL;
if(m_dev > 0) {
CloseSource();
m_dev = 0;
}
m_deviceDescription.clear();
}
@@ -209,22 +214,18 @@ 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 != NULL) {
if(rtlsdr_set_center_freq(m_dev, m_generalSettings.m_centerFrequency
+ 384000) != 0)
qDebug("osmosdr_set_center_freq(%lld) failed", m_generalSettings.m_centerFrequency);
}
if(m_dev > 0)
V4LInput::set_center_freq( (double)(m_generalSettings.m_centerFrequency
+ 384000) ); // samplerate/4
}
if((m_settings.m_gain != settings.m_gain) || force) {
m_settings.m_gain = settings.m_gain;
if(m_dev != NULL) {
if(rtlsdr_set_tuner_gain(m_dev, m_settings.m_gain) != 0)
qDebug("rtlsdr_set_tuner_gain() failed");
}
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_dev != NULL)
if(m_dev > 0)
m_V4LThread->setDecimation(m_settings.m_decimation);
}
return true;