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sdrangel/plugins/samplesink/hackrfoutput/hackrfoutput.cpp

708 lines
23 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2017 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 <QNetworkReply>
#include <QBuffer>
#include "SWGDeviceSettings.h"
#include "SWGDeviceState.h"
#include "util/simpleserializer.h"
#include "dsp/dspcommands.h"
#include "dsp/dspengine.h"
#include "device/devicesourceapi.h"
#include "device/devicesinkapi.h"
#include "hackrf/devicehackrfshared.h"
#include "hackrfoutputthread.h"
#include "hackrfoutput.h"
MESSAGE_CLASS_DEFINITION(HackRFOutput::MsgConfigureHackRF, Message)
MESSAGE_CLASS_DEFINITION(HackRFOutput::MsgStartStop, Message)
MESSAGE_CLASS_DEFINITION(HackRFOutput::MsgReportHackRF, Message)
HackRFOutput::HackRFOutput(DeviceSinkAPI *deviceAPI) :
m_deviceAPI(deviceAPI),
m_settings(),
m_dev(0),
m_hackRFThread(0),
m_deviceDescription("HackRFOutput"),
m_running(false)
{
openDevice();
m_deviceAPI->setBuddySharedPtr(&m_sharedParams);
m_networkManager = new QNetworkAccessManager();
connect(m_networkManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(networkManagerFinished(QNetworkReply*)));
}
HackRFOutput::~HackRFOutput()
{
disconnect(m_networkManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(networkManagerFinished(QNetworkReply*)));
delete m_networkManager;
if (m_running) {
stop();
}
closeDevice();
m_deviceAPI->setBuddySharedPtr(0);
}
void HackRFOutput::destroy()
{
delete this;
}
bool HackRFOutput::openDevice()
{
if (m_dev != 0)
{
closeDevice();
}
m_sampleSourceFifo.resize(m_settings.m_devSampleRate/(1<<(m_settings.m_log2Interp <= 4 ? m_settings.m_log2Interp : 4)));
if (m_deviceAPI->getSourceBuddies().size() > 0)
{
DeviceSourceAPI *buddy = m_deviceAPI->getSourceBuddies()[0];
DeviceHackRFParams *buddySharedParams = (DeviceHackRFParams *) buddy->getBuddySharedPtr();
if (buddySharedParams == 0)
{
qCritical("HackRFOutput::openDevice: could not get shared parameters from buddy");
return false;
}
if ((m_dev = buddySharedParams->m_dev) == 0) // device is not opened by buddy
{
qCritical("HackRFOutput::openDevice: could not get HackRF handle from buddy");
return false;
}
m_sharedParams = *(buddySharedParams); // copy parameters from buddy
m_sharedParams.m_dev = m_dev;
}
else
{
if ((m_dev = DeviceHackRF::open_hackrf(qPrintable(m_deviceAPI->getSampleSinkSerial()))) == 0)
{
qCritical("HackRFOutput::openDevice: could not open HackRF %s", qPrintable(m_deviceAPI->getSampleSinkSerial()));
return false;
}
m_sharedParams.m_dev = m_dev;
}
return true;
}
void HackRFOutput::init()
{
applySettings(m_settings, true);
}
bool HackRFOutput::start()
{
if (!m_dev) {
return false;
}
if (m_running) stop();
m_hackRFThread = new HackRFOutputThread(m_dev, &m_sampleSourceFifo);
// mutexLocker.unlock();
applySettings(m_settings, true);
m_hackRFThread->setLog2Interpolation(m_settings.m_log2Interp);
m_hackRFThread->startWork();
qDebug("HackRFOutput::start: started");
m_running = true;
return true;
}
void HackRFOutput::closeDevice()
{
if (m_deviceAPI->getSourceBuddies().size() == 0)
{
qDebug("HackRFOutput::closeDevice: closing device since Rx side is not open");
if(m_dev != 0) // close HackRF
{
hackrf_close(m_dev);
//hackrf_exit(); // TODO: this may not work if several HackRF Devices are running concurrently. It should be handled globally in the application
}
}
m_sharedParams.m_dev = 0;
m_dev = 0;
}
void HackRFOutput::stop()
{
qDebug("HackRFOutput::stop");
// QMutexLocker mutexLocker(&m_mutex);
if(m_hackRFThread != 0)
{
m_hackRFThread->stopWork();
delete m_hackRFThread;
m_hackRFThread = 0;
}
m_running = false;
}
QByteArray HackRFOutput::serialize() const
{
return m_settings.serialize();
}
bool HackRFOutput::deserialize(const QByteArray& data)
{
bool success = true;
if (!m_settings.deserialize(data))
{
m_settings.resetToDefaults();
success = false;
}
MsgConfigureHackRF* message = MsgConfigureHackRF::create(m_settings, true);
m_inputMessageQueue.push(message);
if (m_guiMessageQueue)
{
MsgConfigureHackRF* messageToGUI = MsgConfigureHackRF::create(m_settings, true);
m_guiMessageQueue->push(messageToGUI);
}
return success;
}
const QString& HackRFOutput::getDeviceDescription() const
{
return m_deviceDescription;
}
int HackRFOutput::getSampleRate() const
{
int rate = m_settings.m_devSampleRate;
return (rate / (1<<m_settings.m_log2Interp));
}
quint64 HackRFOutput::getCenterFrequency() const
{
return m_settings.m_centerFrequency;
}
void HackRFOutput::setCenterFrequency(qint64 centerFrequency)
{
HackRFOutputSettings settings = m_settings;
settings.m_centerFrequency = centerFrequency;
MsgConfigureHackRF* message = MsgConfigureHackRF::create(settings, false);
m_inputMessageQueue.push(message);
if (m_guiMessageQueue)
{
MsgConfigureHackRF* messageToGUI = MsgConfigureHackRF::create(settings, false);
m_guiMessageQueue->push(messageToGUI);
}
}
bool HackRFOutput::handleMessage(const Message& message)
{
if (MsgConfigureHackRF::match(message))
{
MsgConfigureHackRF& conf = (MsgConfigureHackRF&) message;
qDebug() << "HackRFOutput::handleMessage: MsgConfigureHackRF";
bool success = applySettings(conf.getSettings(), conf.getForce());
if (!success)
{
qDebug("HackRFOutput::handleMessage: MsgConfigureHackRF: config error");
}
return true;
}
else if (DeviceHackRFShared::MsgConfigureFrequencyDelta::match(message))
{
DeviceHackRFShared::MsgConfigureFrequencyDelta& conf = (DeviceHackRFShared::MsgConfigureFrequencyDelta&) message;
HackRFOutputSettings newSettings = m_settings;
newSettings.m_centerFrequency = m_settings.m_centerFrequency + conf.getFrequencyDelta();
qDebug() << "HackRFOutput::handleMessage: DeviceHackRFShared::MsgConfigureFrequencyDelta: newFreq: " << newSettings.m_centerFrequency;
applySettings(newSettings, false);
return true;
}
else if (MsgStartStop::match(message))
{
MsgStartStop& cmd = (MsgStartStop&) message;
qDebug() << "HackRFOutput::handleMessage: MsgStartStop: " << (cmd.getStartStop() ? "start" : "stop");
if (cmd.getStartStop())
{
if (m_deviceAPI->initGeneration())
{
m_deviceAPI->startGeneration();
}
}
else
{
m_deviceAPI->stopGeneration();
}
if (m_settings.m_useReverseAPI) {
webapiReverseSendStartStop(cmd.getStartStop());
}
return true;
}
else
{
return false;
}
}
void HackRFOutput::setDeviceCenterFrequency(quint64 freq_hz, qint32 LOppmTenths)
{
qint64 df = ((qint64)freq_hz * LOppmTenths) / 10000000LL;
freq_hz += df;
hackrf_error rc = (hackrf_error) hackrf_set_freq(m_dev, static_cast<uint64_t>(freq_hz));
if (rc != HACKRF_SUCCESS)
{
qWarning("HackRFOutput::setDeviceCenterFrequency: could not frequency to %llu Hz", freq_hz);
}
else
{
qWarning("HackRFOutput::setDeviceCenterFrequency: frequency set to %llu Hz", freq_hz);
}
}
bool HackRFOutput::applySettings(const HackRFOutputSettings& settings, bool force)
{
// QMutexLocker mutexLocker(&m_mutex);
bool forwardChange = false;
bool suspendThread = false;
bool threadWasRunning = false;
hackrf_error rc;
QList<QString> reverseAPIKeys;
qDebug() << "HackRFOutput::applySettings"
<< " m_centerFrequency: " << m_settings.m_centerFrequency
<< " m_LOppmTenths: " << m_settings.m_LOppmTenths
<< " m_bandwidth: " << m_settings.m_bandwidth
<< " m_devSampleRate: " << m_settings.m_devSampleRate
<< " m_log2Interp: " << m_settings.m_log2Interp
<< " m_biasT: " << m_settings.m_biasT
<< " m_lnaExt: " << m_settings.m_lnaExt
<< " m_vgaGain: " << m_settings.m_vgaGain
<< " m_useReverseAPI: " << m_settings.m_useReverseAPI
<< " m_reverseAPIAddress: " << m_settings.m_reverseAPIAddress
<< " m_reverseAPIPort: " << m_settings.m_reverseAPIPort
<< " m_reverseAPIDeviceIndex: " << m_settings.m_reverseAPIDeviceIndex
<< " force: " << force;
if ((m_settings.m_devSampleRate != settings.m_devSampleRate) || force) {
reverseAPIKeys.append("devSampleRate");
}
if ((m_settings.m_devSampleRate != settings.m_devSampleRate) ||
(m_settings.m_log2Interp != settings.m_log2Interp) || force)
{
suspendThread = true;
}
if (suspendThread)
{
if (m_hackRFThread)
{
if (m_hackRFThread->isRunning())
{
m_hackRFThread->stopWork();
threadWasRunning = true;
}
}
}
if ((m_settings.m_devSampleRate != settings.m_devSampleRate) || (m_settings.m_log2Interp != settings.m_log2Interp) || force)
{
forwardChange = true;
int fifoSize = std::max(
(int) ((settings.m_devSampleRate/(1<<settings.m_log2Interp)) * DeviceHackRFShared::m_sampleFifoLengthInSeconds),
DeviceHackRFShared::m_sampleFifoMinSize);
m_sampleSourceFifo.resize(fifoSize);
}
if ((m_settings.m_devSampleRate != settings.m_devSampleRate) || force)
{
if (m_dev != 0)
{
rc = (hackrf_error) hackrf_set_sample_rate_manual(m_dev, settings.m_devSampleRate, 1);
if (rc != HACKRF_SUCCESS)
{
qCritical("HackRFOutput::applySettings: could not set sample rate to %llu S/s: %s",
settings.m_devSampleRate,
hackrf_error_name(rc));
}
else
{
qDebug("HackRFOutput::applySettings: sample rate set to %llu S/s",
settings.m_devSampleRate);
}
}
}
if ((m_settings.m_log2Interp != settings.m_log2Interp) || force)
{
reverseAPIKeys.append("log2Interp");
if (m_hackRFThread != 0)
{
m_hackRFThread->setLog2Interpolation(settings.m_log2Interp);
qDebug() << "HackRFOutput: set interpolation to " << (1<<settings.m_log2Interp);
}
}
if ((m_settings.m_centerFrequency != settings.m_centerFrequency) || force) {
reverseAPIKeys.append("centerFrequency");
}
if ((m_settings.m_LOppmTenths != settings.m_LOppmTenths) || force) {
reverseAPIKeys.append("LOppmTenths");
}
if (force || (m_settings.m_centerFrequency != settings.m_centerFrequency) ||
(m_settings.m_LOppmTenths != settings.m_LOppmTenths))
{
if (m_dev != 0)
{
setDeviceCenterFrequency(settings.m_centerFrequency, settings.m_LOppmTenths);
qDebug() << "HackRFOutput::applySettings: center freq: " << settings.m_centerFrequency << " Hz LOppm: " << settings.m_LOppmTenths;
}
forwardChange = true;
}
if ((m_settings.m_vgaGain != settings.m_vgaGain) || force)
{
reverseAPIKeys.append("vgaGain");
if (m_dev != 0)
{
rc = (hackrf_error) hackrf_set_txvga_gain(m_dev, settings.m_vgaGain);
if (rc != HACKRF_SUCCESS) {
qDebug("HackRFOutput::applySettings: hackrf_set_txvga_gain failed: %s", hackrf_error_name(rc));
} else {
qDebug() << "HackRFOutput:applySettings: TxVGA gain set to " << settings.m_vgaGain;
}
}
}
if ((m_settings.m_bandwidth != settings.m_bandwidth) || force)
{
reverseAPIKeys.append("bandwidth");
if (m_dev != 0)
{
uint32_t bw_index = hackrf_compute_baseband_filter_bw_round_down_lt(settings.m_bandwidth + 1); // +1 so the round down to lower than yields desired bandwidth
rc = (hackrf_error) hackrf_set_baseband_filter_bandwidth(m_dev, bw_index);
if (rc != HACKRF_SUCCESS) {
qDebug("HackRFInput::applySettings: hackrf_set_baseband_filter_bandwidth failed: %s", hackrf_error_name(rc));
} else {
qDebug() << "HackRFInput:applySettings: Baseband BW filter set to " << settings.m_bandwidth << " Hz";
}
}
}
if ((m_settings.m_biasT != settings.m_biasT) || force)
{
reverseAPIKeys.append("biasT");
if (m_dev != 0)
{
rc = (hackrf_error) hackrf_set_antenna_enable(m_dev, (settings.m_biasT ? 1 : 0));
if (rc != HACKRF_SUCCESS) {
qDebug("HackRFInput::applySettings: hackrf_set_antenna_enable failed: %s", hackrf_error_name(rc));
} else {
qDebug() << "HackRFInput:applySettings: bias tee set to " << settings.m_biasT;
}
}
}
if ((m_settings.m_lnaExt != settings.m_lnaExt) || force)
{
reverseAPIKeys.append("lnaExt");
if (m_dev != 0)
{
rc = (hackrf_error) hackrf_set_amp_enable(m_dev, (settings.m_lnaExt ? 1 : 0));
if (rc != HACKRF_SUCCESS) {
qDebug("HackRFInput::applySettings: hackrf_set_amp_enable failed: %s", hackrf_error_name(rc));
} else {
qDebug() << "HackRFInput:applySettings: extra LNA set to " << settings.m_lnaExt;
}
}
}
if (threadWasRunning)
{
m_hackRFThread->startWork();
}
if (settings.m_useReverseAPI)
{
bool fullUpdate = ((m_settings.m_useReverseAPI != settings.m_useReverseAPI) && settings.m_useReverseAPI) ||
(m_settings.m_reverseAPIAddress != settings.m_reverseAPIAddress) ||
(m_settings.m_reverseAPIPort != settings.m_reverseAPIPort) ||
(m_settings.m_reverseAPIDeviceIndex != settings.m_reverseAPIDeviceIndex);
webapiReverseSendSettings(reverseAPIKeys, settings, fullUpdate || force);
}
m_settings = settings;
if (forwardChange)
{
int sampleRate = m_settings.m_devSampleRate/(1<<m_settings.m_log2Interp);
DSPSignalNotification *notif = new DSPSignalNotification(sampleRate, m_settings.m_centerFrequency);
m_deviceAPI->getDeviceEngineInputMessageQueue()->push(notif);
}
return true;
}
int HackRFOutput::webapiSettingsGet(
SWGSDRangel::SWGDeviceSettings& response,
QString& errorMessage)
{
(void) errorMessage;
response.setHackRfOutputSettings(new SWGSDRangel::SWGHackRFOutputSettings());
response.getHackRfOutputSettings()->init();
webapiFormatDeviceSettings(response, m_settings);
return 200;
}
int HackRFOutput::webapiSettingsPutPatch(
bool force,
const QStringList& deviceSettingsKeys,
SWGSDRangel::SWGDeviceSettings& response, // query + response
QString& errorMessage)
{
(void) errorMessage;
HackRFOutputSettings settings = m_settings;
if (deviceSettingsKeys.contains("centerFrequency")) {
settings.m_centerFrequency = response.getHackRfOutputSettings()->getCenterFrequency();
}
if (deviceSettingsKeys.contains("LOppmTenths")) {
settings.m_LOppmTenths = response.getHackRfOutputSettings()->getLOppmTenths();
}
if (deviceSettingsKeys.contains("bandwidth")) {
settings.m_bandwidth = response.getHackRfOutputSettings()->getBandwidth();
}
if (deviceSettingsKeys.contains("vgaGain")) {
settings.m_vgaGain = response.getHackRfOutputSettings()->getVgaGain();
}
if (deviceSettingsKeys.contains("log2Interp")) {
settings.m_log2Interp = response.getHackRfOutputSettings()->getLog2Interp();
}
if (deviceSettingsKeys.contains("devSampleRate")) {
settings.m_devSampleRate = response.getHackRfOutputSettings()->getDevSampleRate();
}
if (deviceSettingsKeys.contains("biasT")) {
settings.m_biasT = response.getHackRfOutputSettings()->getBiasT() != 0;
}
if (deviceSettingsKeys.contains("lnaExt")) {
settings.m_lnaExt = response.getHackRfOutputSettings()->getLnaExt() != 0;
}
if (deviceSettingsKeys.contains("useReverseAPI")) {
settings.m_useReverseAPI = response.getHackRfOutputSettings()->getUseReverseApi() != 0;
}
if (deviceSettingsKeys.contains("reverseAPIAddress")) {
settings.m_reverseAPIAddress = *response.getHackRfOutputSettings()->getReverseApiAddress();
}
if (deviceSettingsKeys.contains("reverseAPIPort")) {
settings.m_reverseAPIPort = response.getHackRfOutputSettings()->getReverseApiPort();
}
if (deviceSettingsKeys.contains("reverseAPIDeviceIndex")) {
settings.m_reverseAPIDeviceIndex = response.getHackRfOutputSettings()->getReverseApiDeviceIndex();
}
MsgConfigureHackRF *msg = MsgConfigureHackRF::create(settings, force);
m_inputMessageQueue.push(msg);
if (m_guiMessageQueue) // forward to GUI if any
{
MsgConfigureHackRF *msgToGUI = MsgConfigureHackRF::create(settings, force);
m_guiMessageQueue->push(msgToGUI);
}
webapiFormatDeviceSettings(response, settings);
return 200;
}
void HackRFOutput::webapiFormatDeviceSettings(SWGSDRangel::SWGDeviceSettings& response, const HackRFOutputSettings& settings)
{
response.getHackRfOutputSettings()->setCenterFrequency(settings.m_centerFrequency);
response.getHackRfOutputSettings()->setLOppmTenths(settings.m_LOppmTenths);
response.getHackRfOutputSettings()->setBandwidth(settings.m_bandwidth);
response.getHackRfOutputSettings()->setVgaGain(settings.m_vgaGain);
response.getHackRfOutputSettings()->setLog2Interp(settings.m_log2Interp);
response.getHackRfOutputSettings()->setDevSampleRate(settings.m_devSampleRate);
response.getHackRfOutputSettings()->setBiasT(settings.m_biasT ? 1 : 0);
response.getHackRfOutputSettings()->setLnaExt(settings.m_lnaExt ? 1 : 0);
response.getHackRfOutputSettings()->setUseReverseApi(settings.m_useReverseAPI ? 1 : 0);
if (response.getHackRfOutputSettings()->getReverseApiAddress()) {
*response.getHackRfOutputSettings()->getReverseApiAddress() = settings.m_reverseAPIAddress;
} else {
response.getHackRfOutputSettings()->setReverseApiAddress(new QString(settings.m_reverseAPIAddress));
}
response.getHackRfOutputSettings()->setReverseApiPort(settings.m_reverseAPIPort);
response.getHackRfOutputSettings()->setReverseApiDeviceIndex(settings.m_reverseAPIDeviceIndex);
}
int HackRFOutput::webapiRunGet(
SWGSDRangel::SWGDeviceState& response,
QString& errorMessage)
{
(void) errorMessage;
m_deviceAPI->getDeviceEngineStateStr(*response.getState());
return 200;
}
int HackRFOutput::webapiRun(
bool run,
SWGSDRangel::SWGDeviceState& response,
QString& errorMessage)
{
(void) errorMessage;
m_deviceAPI->getDeviceEngineStateStr(*response.getState());
MsgStartStop *message = MsgStartStop::create(run);
m_inputMessageQueue.push(message);
if (m_guiMessageQueue)
{
MsgStartStop *messagetoGui = MsgStartStop::create(run);
m_guiMessageQueue->push(messagetoGui);
}
return 200;
}
void HackRFOutput::webapiReverseSendSettings(QList<QString>& deviceSettingsKeys, const HackRFOutputSettings& settings, bool force)
{
SWGSDRangel::SWGDeviceSettings *swgDeviceSettings = new SWGSDRangel::SWGDeviceSettings();
swgDeviceSettings->setTx(1);
swgDeviceSettings->setDeviceHwType(new QString("HackRF"));
swgDeviceSettings->setHackRfOutputSettings(new SWGSDRangel::SWGHackRFOutputSettings());
SWGSDRangel::SWGHackRFOutputSettings *swgHackRFOutputSettings = swgDeviceSettings->getHackRfOutputSettings();
// transfer data that has been modified. When force is on transfer all data except reverse API data
if (deviceSettingsKeys.contains("centerFrequency") || force) {
swgHackRFOutputSettings->setCenterFrequency(settings.m_centerFrequency);
}
if (deviceSettingsKeys.contains("LOppmTenths") || force) {
swgHackRFOutputSettings->setLOppmTenths(settings.m_LOppmTenths);
}
if (deviceSettingsKeys.contains("bandwidth") || force) {
swgHackRFOutputSettings->setBandwidth(settings.m_bandwidth);
}
if (deviceSettingsKeys.contains("vgaGain") || force) {
swgHackRFOutputSettings->setVgaGain(settings.m_vgaGain);
}
if (deviceSettingsKeys.contains("log2Interp") || force) {
swgHackRFOutputSettings->setLog2Interp(settings.m_log2Interp);
}
if (deviceSettingsKeys.contains("devSampleRate") || force) {
swgHackRFOutputSettings->setDevSampleRate(settings.m_devSampleRate);
}
if (deviceSettingsKeys.contains("biasT") || force) {
swgHackRFOutputSettings->setBiasT(settings.m_biasT ? 1 : 0);
}
if (deviceSettingsKeys.contains("lnaExt") || force) {
swgHackRFOutputSettings->setLnaExt(settings.m_lnaExt ? 1 : 0);
}
QString deviceSettingsURL = QString("http://%1:%2/sdrangel/deviceset/%3/device/settings")
.arg(settings.m_reverseAPIAddress)
.arg(settings.m_reverseAPIPort)
.arg(settings.m_reverseAPIDeviceIndex);
m_networkRequest.setUrl(QUrl(deviceSettingsURL));
m_networkRequest.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");
QBuffer *buffer=new QBuffer();
buffer->open((QBuffer::ReadWrite));
buffer->write(swgDeviceSettings->asJson().toUtf8());
buffer->seek(0);
// Always use PATCH to avoid passing reverse API settings
m_networkManager->sendCustomRequest(m_networkRequest, "PATCH", buffer);
delete swgDeviceSettings;
}
void HackRFOutput::webapiReverseSendStartStop(bool start)
{
QString deviceSettingsURL = QString("http://%1:%2/sdrangel/deviceset/%3/device/run")
.arg(m_settings.m_reverseAPIAddress)
.arg(m_settings.m_reverseAPIPort)
.arg(m_settings.m_reverseAPIDeviceIndex);
m_networkRequest.setUrl(QUrl(deviceSettingsURL));
if (start) {
m_networkManager->sendCustomRequest(m_networkRequest, "POST");
} else {
m_networkManager->sendCustomRequest(m_networkRequest, "DELETE");
}
}
void HackRFOutput::networkManagerFinished(QNetworkReply *reply)
{
QNetworkReply::NetworkError replyError = reply->error();
if (replyError)
{
qWarning() << "HackRFOutput::networkManagerFinished:"
<< " error(" << (int) replyError
<< "): " << replyError
<< ": " << reply->errorString();
return;
}
QString answer = reply->readAll();
answer.chop(1); // remove last \n
qDebug("HackRFOutput::networkManagerFinished: reply:\n%s", answer.toStdString().c_str());
}