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sdrangel/plugins/samplesource/airspy/airspyinput.cpp

488 lines
12 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2015 Edouard Griffiths, F4EXB //
// //
// 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 //
// //
// 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 <string.h>
#include <errno.h>
#include <QDebug>
#include "airspygui.h"
#include "airspyinput.h"
#include "device/deviceapi.h"
#include "dsp/dspcommands.h"
#include "dsp/dspengine.h"
#include "airspysettings.h"
#include "airspythread.h"
MESSAGE_CLASS_DEFINITION(AirspyInput::MsgConfigureAirspy, Message)
MESSAGE_CLASS_DEFINITION(AirspyInput::MsgReportAirspy, Message)
AirspyInput::AirspyInput(DeviceAPI *deviceAPI) :
m_deviceAPI(deviceAPI),
m_settings(),
m_dev(0),
m_airspyThread(0),
m_deviceDescription("Airspy")
{
m_sampleRates.push_back(10000000);
m_sampleRates.push_back(2500000);
}
AirspyInput::~AirspyInput()
{
stop();
}
bool AirspyInput::init(const Message& cmd)
{
return false;
}
bool AirspyInput::start(int device)
{
QMutexLocker mutexLocker(&m_mutex);
airspy_error rc;
rc = (airspy_error) airspy_init();
if (rc != AIRSPY_SUCCESS)
{
qCritical("AirspyInput::start: failed to initiate Airspy library %s", airspy_error_name(rc));
}
if (m_dev != 0)
{
stop();
}
if (!m_sampleFifo.setSize(1<<19))
{
qCritical("AirspyInput::start: could not allocate SampleFifo");
return false;
}
if ((m_dev = open_airspy_from_sequence(device)) == 0)
{
qCritical("AirspyInput::start: could not open Airspy #%d", device);
return false;
}
#ifdef LIBAIRSPY_DYN_RATES
uint32_t nbSampleRates;
uint32_t *sampleRates;
airspy_get_samplerates(m_dev, &nbSampleRates, 0);
sampleRates = new uint32_t[nbSampleRates];
airspy_get_samplerates(m_dev, sampleRates, nbSampleRates);
if (nbSampleRates == 0)
{
qCritical("AirspyInput::start: could not obtain Airspy sample rates");
return false;
}
m_sampleRates.clear();
for (int i=0; i<nbSampleRates; i++)
{
m_sampleRates.push_back(sampleRates[i]);
qDebug("AirspyInput::start: sampleRates[%d] = %u Hz", i, sampleRates[i]);
}
delete[] sampleRates;
#else
m_sampleRates.clear();
m_sampleRates.push_back(10000000);
m_sampleRates.push_back(2500000);
#endif
MsgReportAirspy *message = MsgReportAirspy::create(m_sampleRates);
getOutputMessageQueueToGUI()->push(message);
rc = (airspy_error) airspy_set_sample_type(m_dev, AIRSPY_SAMPLE_INT16_IQ);
if (rc != AIRSPY_SUCCESS)
{
qCritical("AirspyInput::start: could not set sample type to INT16_IQ");
return false;
}
if((m_airspyThread = new AirspyThread(m_dev, &m_sampleFifo)) == 0)
{
qFatal("AirspyInput::start: out of memory");
stop();
return false;
}
m_airspyThread->startWork();
mutexLocker.unlock();
applySettings(m_settings, true);
qDebug("AirspyInput::startInput: started");
return true;
}
void AirspyInput::stop()
{
qDebug("AirspyInput::stop");
QMutexLocker mutexLocker(&m_mutex);
if(m_airspyThread != 0)
{
m_airspyThread->stopWork();
delete m_airspyThread;
m_airspyThread = 0;
}
if(m_dev != 0)
{
airspy_stop_rx(m_dev);
airspy_close(m_dev);
m_dev = 0;
}
airspy_exit();
}
const QString& AirspyInput::getDeviceDescription() const
{
return m_deviceDescription;
}
int AirspyInput::getSampleRate() const
{
int rate = m_sampleRates[m_settings.m_devSampleRateIndex];
return (rate / (1<<m_settings.m_log2Decim));
}
quint64 AirspyInput::getCenterFrequency() const
{
return m_settings.m_centerFrequency;
}
bool AirspyInput::handleMessage(const Message& message)
{
if (MsgConfigureAirspy::match(message))
{
MsgConfigureAirspy& conf = (MsgConfigureAirspy&) message;
qDebug() << "AirspyInput::handleMessage: MsgConfigureAirspy";
bool success = applySettings(conf.getSettings(), false);
if (!success)
{
qDebug("Airspy config error");
}
return true;
}
else
{
return false;
}
}
void AirspyInput::setCenterFrequency(quint64 freq_hz)
{
qint64 df = ((qint64)freq_hz * m_settings.m_LOppmTenths) / 10000000LL;
freq_hz += df;
airspy_error rc = (airspy_error) airspy_set_freq(m_dev, static_cast<uint32_t>(freq_hz));
if (rc != AIRSPY_SUCCESS)
{
qWarning("AirspyInput::setCenterFrequency: could not frequency to %llu Hz", freq_hz);
}
else
{
qWarning("AirspyInput::setCenterFrequency: frequency set to %llu Hz", freq_hz);
}
}
bool AirspyInput::applySettings(const AirspySettings& settings, bool force)
{
QMutexLocker mutexLocker(&m_mutex);
bool forwardChange = false;
airspy_error rc;
qDebug() << "AirspyInput::applySettings";
if (m_settings.m_dcBlock != settings.m_dcBlock)
{
m_settings.m_dcBlock = settings.m_dcBlock;
m_deviceAPI->configureCorrections(m_settings.m_dcBlock, m_settings.m_iqCorrection);
}
if (m_settings.m_iqCorrection != settings.m_iqCorrection)
{
m_settings.m_iqCorrection = settings.m_iqCorrection;
m_deviceAPI->configureCorrections(m_settings.m_dcBlock, m_settings.m_iqCorrection);
}
if ((m_settings.m_devSampleRateIndex != settings.m_devSampleRateIndex) || force)
{
forwardChange = true;
if (settings.m_devSampleRateIndex < m_sampleRates.size())
{
m_settings.m_devSampleRateIndex = settings.m_devSampleRateIndex;
}
else
{
m_settings.m_devSampleRateIndex = m_sampleRates.size() - 1;
}
if (m_dev != 0)
{
rc = (airspy_error) airspy_set_samplerate(m_dev, static_cast<airspy_samplerate_t>(m_settings.m_devSampleRateIndex));
if (rc != AIRSPY_SUCCESS)
{
qCritical("AirspyInput::applySettings: could not set sample rate index %u (%d S/s): %s", m_settings.m_devSampleRateIndex, m_sampleRates[m_settings.m_devSampleRateIndex], airspy_error_name(rc));
}
else
{
qDebug("AirspyInput::applySettings: sample rate set to index: %u (%d S/s)", m_settings.m_devSampleRateIndex, m_sampleRates[m_settings.m_devSampleRateIndex]);
m_airspyThread->setSamplerate(m_sampleRates[m_settings.m_devSampleRateIndex]);
}
}
}
if ((m_settings.m_log2Decim != settings.m_log2Decim) || force)
{
m_settings.m_log2Decim = settings.m_log2Decim;
forwardChange = true;
if(m_dev != 0)
{
m_airspyThread->setLog2Decimation(m_settings.m_log2Decim);
qDebug() << "AirspyInput: set decimation to " << (1<<m_settings.m_log2Decim);
}
}
qint64 deviceCenterFrequency = m_settings.m_centerFrequency;
qint64 f_img = deviceCenterFrequency;
quint32 devSampleRate = m_sampleRates[m_settings.m_devSampleRateIndex];
if (force || (m_settings.m_centerFrequency != settings.m_centerFrequency) ||
(m_settings.m_LOppmTenths != settings.m_LOppmTenths) ||
(m_settings.m_fcPos != settings.m_fcPos))
{
m_settings.m_centerFrequency = settings.m_centerFrequency;
m_settings.m_LOppmTenths = settings.m_LOppmTenths;
if ((m_settings.m_log2Decim == 0) || (settings.m_fcPos == AirspySettings::FC_POS_CENTER))
{
deviceCenterFrequency = m_settings.m_centerFrequency;
f_img = deviceCenterFrequency;
}
else
{
if (settings.m_fcPos == AirspySettings::FC_POS_INFRA)
{
deviceCenterFrequency = m_settings.m_centerFrequency + (devSampleRate / 4);
f_img = deviceCenterFrequency + devSampleRate/2;
}
else if (settings.m_fcPos == AirspySettings::FC_POS_SUPRA)
{
deviceCenterFrequency = m_settings.m_centerFrequency - (devSampleRate / 4);
f_img = deviceCenterFrequency - devSampleRate/2;
}
}
if (m_dev != 0)
{
setCenterFrequency(deviceCenterFrequency);
qDebug() << "AirspyInput::applySettings: center freq: " << m_settings.m_centerFrequency << " Hz"
<< " device center freq: " << deviceCenterFrequency << " Hz"
<< " device sample rate: " << devSampleRate << "Hz"
<< " Actual sample rate: " << devSampleRate/(1<<m_settings.m_log2Decim) << "Hz"
<< " img: " << f_img << "Hz";
}
forwardChange = true;
}
if ((m_settings.m_fcPos != settings.m_fcPos) || force)
{
m_settings.m_fcPos = settings.m_fcPos;
if(m_dev != 0)
{
m_airspyThread->setFcPos((int) m_settings.m_fcPos);
qDebug() << "AirspyInput: set fc pos (enum) to " << (int) m_settings.m_fcPos;
}
}
if ((m_settings.m_lnaGain != settings.m_lnaGain) || force)
{
m_settings.m_lnaGain = settings.m_lnaGain;
if (m_dev != 0)
{
rc = (airspy_error) airspy_set_lna_gain(m_dev, m_settings.m_lnaGain);
if(rc != AIRSPY_SUCCESS)
{
qDebug("AirspyInput::applySettings: airspy_set_lna_gain failed: %s", airspy_error_name(rc));
}
else
{
qDebug() << "AirspyInput:applySettings: LNA gain set to " << m_settings.m_lnaGain;
}
}
}
if ((m_settings.m_lnaAGC != settings.m_lnaAGC) || force)
{
m_settings.m_lnaAGC = settings.m_lnaAGC;
if (m_dev != 0)
{
rc = (airspy_error) airspy_set_lna_agc(m_dev, (m_settings.m_lnaAGC ? 1 : 0));
}
if(rc != AIRSPY_SUCCESS)
{
qDebug("AirspyInput::applySettings: airspy_set_lna_agc failed: %s", airspy_error_name(rc));
}
else
{
qDebug() << "AirspyInput:applySettings: LNA AGC set to " << m_settings.m_lnaAGC;
}
}
if ((m_settings.m_mixerGain != settings.m_mixerGain) || force)
{
m_settings.m_mixerGain = settings.m_mixerGain;
if (m_dev != 0)
{
rc = (airspy_error) airspy_set_mixer_gain(m_dev, m_settings.m_mixerGain);
if(rc != AIRSPY_SUCCESS)
{
qDebug("AirspyInput::applySettings: airspy_set_mixer_gain failed: %s", airspy_error_name(rc));
}
else
{
qDebug() << "AirspyInput:applySettings: mixer gain set to " << m_settings.m_mixerGain;
}
}
}
if ((m_settings.m_mixerAGC != settings.m_mixerAGC) || force)
{
m_settings.m_mixerAGC = settings.m_mixerAGC;
if (m_dev != 0)
{
rc = (airspy_error) airspy_set_mixer_agc(m_dev, (m_settings.m_mixerAGC ? 1 : 0));
}
if(rc != AIRSPY_SUCCESS)
{
qDebug("AirspyInput::applySettings: airspy_set_mixer_agc failed: %s", airspy_error_name(rc));
}
else
{
qDebug() << "AirspyInput:applySettings: Mixer AGC set to " << m_settings.m_mixerAGC;
}
}
if ((m_settings.m_vgaGain != settings.m_vgaGain) || force)
{
m_settings.m_vgaGain = settings.m_vgaGain;
if (m_dev != 0)
{
rc = (airspy_error) airspy_set_vga_gain(m_dev, m_settings.m_vgaGain);
if(rc != AIRSPY_SUCCESS)
{
qDebug("AirspyInput::applySettings: airspy_set_vga_gain failed: %s", airspy_error_name(rc));
}
else
{
qDebug() << "AirspyInput:applySettings: VGA gain set to " << m_settings.m_vgaGain;
}
}
}
if ((m_settings.m_biasT != settings.m_biasT) || force)
{
m_settings.m_biasT = settings.m_biasT;
if (m_dev != 0)
{
rc = (airspy_error) airspy_set_rf_bias(m_dev, (m_settings.m_biasT ? 1 : 0));
if(rc != AIRSPY_SUCCESS)
{
qDebug("AirspyInput::applySettings: airspy_set_rf_bias failed: %s", airspy_error_name(rc));
}
else
{
qDebug() << "AirspyInput:applySettings: bias tee set to " << m_settings.m_biasT;
}
}
}
if (forwardChange)
{
int sampleRate = devSampleRate/(1<<m_settings.m_log2Decim);
DSPSignalNotification *notif = new DSPSignalNotification(sampleRate, m_settings.m_centerFrequency);
m_deviceAPI->getDeviceInputMessageQueue()->push(notif);
}
return true;
}
struct airspy_device *AirspyInput::open_airspy_from_sequence(int sequence)
{
airspy_read_partid_serialno_t read_partid_serialno;
struct airspy_device *devinfo, *retdev = 0;
uint32_t serial_msb = 0;
uint32_t serial_lsb = 0;
airspy_error rc;
int i;
for (int i = 0; i < AIRSPY_MAX_DEVICE; i++)
{
rc = (airspy_error) airspy_open(&devinfo);
if (rc == AIRSPY_SUCCESS)
{
if (i == sequence)
{
return devinfo;
}
}
else
{
break;
}
}
return 0;
}