mirror of
https://github.com/f4exb/sdrangel.git
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385 lines
9.6 KiB
C++
385 lines
9.6 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
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// written by Christian Daniel //
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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 "rtlsdrinput.h"
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#include "rtlsdrthread.h"
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#include "rtlsdrgui.h"
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#include "plugin/pluginapi.h"
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#include "dsp/dspcommands.h"
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#include "dsp/dspengine.h"
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MESSAGE_CLASS_DEFINITION(RTLSDRInput::MsgConfigureRTLSDR, Message)
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MESSAGE_CLASS_DEFINITION(RTLSDRInput::MsgReportRTLSDR, Message)
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RTLSDRInput::RTLSDRInput(PluginAPI *pluginAPI) :
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m_pluginAPI(pluginAPI),
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m_settings(),
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m_dev(0),
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m_rtlSDRThread(0),
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m_deviceDescription()
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{
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}
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RTLSDRInput::~RTLSDRInput()
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{
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stop();
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}
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bool RTLSDRInput::init(const Message& message)
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{
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return false;
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}
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bool RTLSDRInput::start(int device)
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{
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QMutexLocker mutexLocker(&m_mutex);
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if (m_dev != 0)
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{
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stop();
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}
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char vendor[256];
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char product[256];
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char serial[256];
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int res;
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int numberOfGains;
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if (!m_sampleFifo.setSize(96000 * 4))
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{
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qCritical("RTLSDRInput::start: Could not allocate SampleFifo");
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return false;
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}
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if ((res = rtlsdr_open(&m_dev, device)) < 0)
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{
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qCritical("RTLSDRInput::start: could not open RTLSDR #%d: %s", device, strerror(errno));
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return false;
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}
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vendor[0] = '\0';
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product[0] = '\0';
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serial[0] = '\0';
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if ((res = rtlsdr_get_usb_strings(m_dev, vendor, product, serial)) < 0)
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{
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qCritical("RTLSDRInput::start: error accessing USB device");
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stop();
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return false;
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}
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qWarning("RTLSDRInput::start: open: %s %s, SN: %s", vendor, product, serial);
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m_deviceDescription = QString("%1 (SN %2)").arg(product).arg(serial);
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if ((res = rtlsdr_set_sample_rate(m_dev, 1152000)) < 0)
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{
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qCritical("RTLSDRInput::start: could not set sample rate: 1024k S/s");
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stop();
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return false;
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}
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if ((res = rtlsdr_set_tuner_gain_mode(m_dev, 1)) < 0)
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{
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qCritical("RTLSDRInput::start: error setting tuner gain mode");
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stop();
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return false;
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}
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if ((res = rtlsdr_set_agc_mode(m_dev, 0)) < 0)
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{
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qCritical("RTLSDRInput::start: error setting agc mode");
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stop();
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return false;
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}
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numberOfGains = rtlsdr_get_tuner_gains(m_dev, NULL);
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if (numberOfGains < 0)
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{
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qCritical("RTLSDRInput::start: error getting number of gain values supported");
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stop();
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return false;
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}
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m_gains.resize(numberOfGains);
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if (rtlsdr_get_tuner_gains(m_dev, &m_gains[0]) < 0)
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{
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qCritical("RTLSDRInput::start: error getting gain values");
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stop();
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return false;
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}
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else
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{
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qDebug() << "RTLSDRInput::start: " << m_gains.size() << "gains";
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MsgReportRTLSDR *message = MsgReportRTLSDR::create(m_gains);
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getOutputMessageQueueToGUI()->push(message);
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}
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if ((res = rtlsdr_reset_buffer(m_dev)) < 0)
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{
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qCritical("RTLSDRInput::start: could not reset USB EP buffers: %s", strerror(errno));
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stop();
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return false;
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}
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if ((m_rtlSDRThread = new RTLSDRThread(m_dev, &m_sampleFifo)) == NULL)
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{
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qFatal("RTLSDRInput::start: out of memory");
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stop();
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return false;
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}
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m_rtlSDRThread->startWork();
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mutexLocker.unlock();
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applySettings(m_settings, true);
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return true;
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}
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void RTLSDRInput::stop()
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{
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QMutexLocker mutexLocker(&m_mutex);
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if (m_rtlSDRThread != 0)
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{
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m_rtlSDRThread->stopWork();
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delete m_rtlSDRThread;
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m_rtlSDRThread = 0;
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}
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if (m_dev != 0)
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{
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rtlsdr_close(m_dev);
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m_dev = 0;
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}
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m_deviceDescription.clear();
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}
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const QString& RTLSDRInput::getDeviceDescription() const
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{
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return m_deviceDescription;
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}
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int RTLSDRInput::getSampleRate() const
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{
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int rate = m_settings.m_devSampleRate;
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return (rate / (1<<m_settings.m_log2Decim));
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}
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quint64 RTLSDRInput::getCenterFrequency() const
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{
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return m_settings.m_centerFrequency;
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}
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bool RTLSDRInput::handleMessage(const Message& message)
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{
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if (MsgConfigureRTLSDR::match(message))
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{
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MsgConfigureRTLSDR& conf = (MsgConfigureRTLSDR&) message;
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if (!applySettings(conf.getSettings(), false))
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{
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qDebug("RTLSDR config error");
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}
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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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bool RTLSDRInput::applySettings(const RTLSDRSettings& settings, bool force)
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{
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QMutexLocker mutexLocker(&m_mutex);
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bool forwardChange = false;
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if ((m_settings.m_gain != settings.m_gain) || force)
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{
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m_settings.m_gain = settings.m_gain;
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if(m_dev != 0)
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{
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if(rtlsdr_set_tuner_gain(m_dev, m_settings.m_gain) != 0)
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{
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qDebug("rtlsdr_set_tuner_gain() failed");
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}
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}
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}
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if ((m_settings.m_devSampleRate != settings.m_devSampleRate) || force)
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{
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forwardChange = true;
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if(m_dev != 0)
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{
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if( rtlsdr_set_sample_rate(m_dev, settings.m_devSampleRate) < 0)
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{
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qCritical("RTLSDRInput::applySettings: could not set sample rate: %d", settings.m_devSampleRate);
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}
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else
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{
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m_settings.m_devSampleRate = settings.m_devSampleRate;
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m_rtlSDRThread->setSamplerate(settings.m_devSampleRate);
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qDebug("RTLSDRInput::applySettings: sample rate set to %d", m_settings.m_devSampleRate);
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}
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}
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}
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if ((m_settings.m_loPpmCorrection != settings.m_loPpmCorrection) || force)
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{
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if (m_dev != 0)
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{
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if (rtlsdr_set_freq_correction(m_dev, settings.m_loPpmCorrection) < 0)
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{
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qCritical("could not set LO ppm correction: %d", settings.m_loPpmCorrection);
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}
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else
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{
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m_settings.m_loPpmCorrection = settings.m_loPpmCorrection;
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}
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}
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}
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if ((m_settings.m_log2Decim != settings.m_log2Decim) || force)
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{
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forwardChange = true;
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if(m_dev != 0)
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{
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m_settings.m_log2Decim = settings.m_log2Decim;
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m_rtlSDRThread->setLog2Decimation(settings.m_log2Decim);
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}
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}
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if (m_settings.m_centerFrequency != settings.m_centerFrequency)
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{
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forwardChange = true;
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}
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qint64 deviceCenterFrequency = m_settings.m_centerFrequency;
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qint64 f_img = deviceCenterFrequency;
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quint32 devSampleRate = m_settings.m_devSampleRate;
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if (force || (m_settings.m_centerFrequency != settings.m_centerFrequency)
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|| (m_settings.m_fcPos != settings.m_fcPos))
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{
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m_settings.m_centerFrequency = settings.m_centerFrequency;
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if ((m_settings.m_log2Decim == 0) || (settings.m_fcPos == RTLSDRSettings::FC_POS_CENTER))
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{
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deviceCenterFrequency = m_settings.m_centerFrequency;
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f_img = deviceCenterFrequency;
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}
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else
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{
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if (settings.m_fcPos == RTLSDRSettings::FC_POS_INFRA)
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{
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deviceCenterFrequency = m_settings.m_centerFrequency + (devSampleRate / 4);
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f_img = deviceCenterFrequency + devSampleRate/2;
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}
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else if (settings.m_fcPos == RTLSDRSettings::FC_POS_SUPRA)
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{
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deviceCenterFrequency = m_settings.m_centerFrequency - (devSampleRate / 4);
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f_img = deviceCenterFrequency - devSampleRate/2;
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}
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}
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if(m_dev != 0)
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{
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if (rtlsdr_set_center_freq( m_dev, deviceCenterFrequency ) != 0)
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{
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qDebug("rtlsdr_set_center_freq(%lld) failed", deviceCenterFrequency);
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}
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else
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{
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qDebug() << "RTLSDRInput::applySettings: center freq: " << m_settings.m_centerFrequency << " Hz"
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<< " device center freq: " << deviceCenterFrequency << " Hz"
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<< " device sample rate: " << devSampleRate << "Hz"
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<< " Actual sample rate: " << devSampleRate/(1<<m_settings.m_log2Decim) << "Hz"
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<< " img: " << f_img << "Hz";
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}
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}
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}
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if ((m_settings.m_fcPos != settings.m_fcPos) || force)
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{
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m_settings.m_fcPos = settings.m_fcPos;
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if(m_dev != 0)
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{
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m_rtlSDRThread->setFcPos((int) m_settings.m_fcPos);
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qDebug() << "RTLSDRInput: set fc pos (enum) to " << (int) m_settings.m_fcPos;
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}
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}
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/*
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if(m_dev != 0)
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{
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qint64 centerFrequency = m_settings.m_centerFrequency + (m_settings.m_devSampleRate / 4);
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if (m_settings.m_log2Decim == 0)
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{ // Little wooby-doop if no decimation
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centerFrequency = m_settings.m_centerFrequency;
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}
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else
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{
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centerFrequency = m_settings.m_centerFrequency + (m_settings.m_devSampleRate / 4);
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}
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if (rtlsdr_set_center_freq( m_dev, centerFrequency ) != 0)
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{
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qDebug("rtlsdr_set_center_freq(%lld) failed", m_settings.m_centerFrequency);
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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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m_pluginAPI->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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m_pluginAPI->configureCorrections(m_settings.m_dcBlock, m_settings.m_iqImbalance);
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}
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if (forwardChange)
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{
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int sampleRate = m_settings.m_devSampleRate/(1<<m_settings.m_log2Decim);
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DSPSignalNotification *notif = new DSPSignalNotification(sampleRate, m_settings.m_centerFrequency);
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m_pluginAPI->getDeviceInputMessageQueue()->push(notif);
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}
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return true;
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}
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void RTLSDRInput::set_ds_mode(int on)
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{
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rtlsdr_set_direct_sampling(m_dev, on);
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}
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