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sdrangel/plugins/channeltx/mod802.15.4/ieee_802_15_4_modsettings.cpp

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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2017 Edouard Griffiths, F4EXB //
// Copyright (C) 2020 Jon Beniston, M7RCE //
// //
// 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 //
// (at your option) any later version. //
// //
// 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 <QColor>
#include <QDebug>
#include "dsp/dspengine.h"
#include "util/simpleserializer.h"
#include "settings/serializable.h"
#include "ieee_802_15_4_modsettings.h"
#include "ieee_802_15_4_macframe.h"
IEEE_802_15_4_ModSettings::IEEE_802_15_4_ModSettings()
{
resetToDefaults();
}
void IEEE_802_15_4_ModSettings::resetToDefaults()
{
IEEE_802_15_4_MacFrame macFrame;
char frame[1024];
macFrame.toHexCharArray(frame);
m_inputFrequencyOffset = 0;
m_modulation = BPSK;
m_bitRate = 20000;
m_subGHzBand = true;
m_rfBandwidth = 2.0f * 300000.0f;
m_gain = -1.0f; // To avoid overflow, which results in out-of-band RF
m_channelMute = false;
m_repeat = false;
m_repeatDelay = 1.0f;
m_repeatCount = infinitePackets;
m_rampUpBits = 0;
m_rampDownBits = 0;
m_rampRange = 0;
m_modulateWhileRamping = true;
m_lpfTaps = 301;
m_bbNoise = false;
m_writeToFile = false;
m_spectrumRate = m_rfBandwidth;
m_data = QString(frame);
m_rgbColor = QColor(255, 0, 0).rgb();
m_title = "802.15.4 Modulator";
m_streamIndex = 0;
m_useReverseAPI = false;
m_reverseAPIAddress = "127.0.0.1";
m_reverseAPIPort = 8888;
m_reverseAPIDeviceIndex = 0;
m_reverseAPIChannelIndex = 0;
m_scramble = false;
m_polynomial = 0x108;
m_pulseShaping = RC;
m_beta = 1.0f;
m_symbolSpan = 6;
m_udpEnabled = false;
m_udpAddress = "127.0.0.1";
m_udpPort = 9998;
}
bool IEEE_802_15_4_ModSettings::setPHY(QString phy)
{
int bitRate;
bool valid;
// First part of phy string should give bitrate in kbps
bitRate = phy.split("k")[0].toInt(&valid) * 1000;
if (!valid)
return false;
if (phy.contains("BPSK"))
{
m_bitRate = bitRate;
m_subGHzBand = true;
m_rfBandwidth = 2.0 * bitRate * 15.0;
m_spectrumRate = m_rfBandwidth;
m_modulation = IEEE_802_15_4_ModSettings::BPSK;
m_pulseShaping = RC;
m_beta = 1.0f;
m_symbolSpan = 6;
}
else if (phy.contains("O-QPSK"))
{
m_bitRate = bitRate;
m_subGHzBand = phy.contains("<1");
m_rfBandwidth = 2.0 * (bitRate / 4.0) * (m_subGHzBand ? 16.0 : 32.0);
m_spectrumRate = m_rfBandwidth;
m_modulation = IEEE_802_15_4_ModSettings::OQPSK;
if (phy.contains("RC"))
{
m_pulseShaping = RC;
m_beta = 0.8f;
m_symbolSpan = 6;
}
else
m_pulseShaping = SINE;
}
else
return false;
return true;
}
QString IEEE_802_15_4_ModSettings::getPHY() const
{
return QString("%1kbps %2").arg(m_bitRate/1000).arg(m_modulation == IEEE_802_15_4_ModSettings::BPSK ? "BPSK" : "O-QPSK");
}
int IEEE_802_15_4_ModSettings::getChipRate() const
{
int chipsPerSymbol, bitsPerSymbol;
if (m_modulation == BPSK)
{
chipsPerSymbol = 15;
bitsPerSymbol = 1;
}
else
{
bitsPerSymbol = 4;
chipsPerSymbol = m_subGHzBand ? 16 : 32;
}
return m_bitRate * chipsPerSymbol / bitsPerSymbol;
}
QByteArray IEEE_802_15_4_ModSettings::serialize() const
{
SimpleSerializer s(1);
s.writeS32(1, m_inputFrequencyOffset);
s.writeS32(2, m_bitRate);
s.writeReal(3, m_rfBandwidth);
s.writeBool(4, m_subGHzBand);
s.writeReal(5, m_gain);
s.writeBool(6, m_channelMute);
s.writeBool(7, m_repeat);
s.writeReal(8, m_repeatDelay);
s.writeS32(9, m_repeatCount);
s.writeS32(10, m_rampUpBits);
s.writeS32(11, m_rampDownBits);
s.writeS32(12, m_rampRange);
s.writeBool(13, m_modulateWhileRamping);
s.writeS32(14, m_lpfTaps);
s.writeBool(15, m_bbNoise);
s.writeBool(16, m_writeToFile);
s.writeString(17, m_data);
s.writeU32(18, m_rgbColor);
s.writeString(19, m_title);
if (m_channelMarker) {
s.writeBlob(20, m_channelMarker->serialize());
}
s.writeS32(21, m_streamIndex);
s.writeBool(22, m_useReverseAPI);
s.writeString(23, m_reverseAPIAddress);
s.writeU32(24, m_reverseAPIPort);
s.writeU32(25, m_reverseAPIDeviceIndex);
s.writeU32(26, m_reverseAPIChannelIndex);
s.writeBool(27, m_scramble);
s.writeS32(28, m_polynomial);
s.writeS32(29, m_pulseShaping);
s.writeReal(30, m_beta);
s.writeS32(31, m_symbolSpan);
s.writeS32(32, m_spectrumRate);
s.writeS32(33, m_modulation);
s.writeBool(34, m_udpEnabled);
s.writeString(35, m_udpAddress);
s.writeU32(36, m_udpPort);
return s.final();
}
bool IEEE_802_15_4_ModSettings::deserialize(const QByteArray& data)
{
SimpleDeserializer d(data);
if(!d.isValid())
{
resetToDefaults();
return false;
}
if(d.getVersion() == 1)
{
QByteArray bytetmp;
qint32 tmp;
uint32_t utmp;
d.readS32(1, &tmp, 0);
m_inputFrequencyOffset = tmp;
d.readS32(2, &m_bitRate, 20000);
d.readReal(3, &m_rfBandwidth, 2.0f * 300000.0f);
d.readBool(4, &m_subGHzBand, m_bitRate <= 40000);
d.readReal(5, &m_gain, 0.0f);
d.readBool(6, &m_channelMute, false);
d.readBool(7, &m_repeat, false);
d.readReal(8, &m_repeatDelay, 1.0f);
d.readS32(9, &m_repeatCount, -1);
d.readS32(10, &m_rampUpBits, 8);
d.readS32(11, &m_rampDownBits, 8);
d.readS32(12, &m_rampRange, 8);
d.readBool(13, &m_modulateWhileRamping, true);
d.readS32(14, &m_lpfTaps, 301);
d.readBool(15, &m_bbNoise, false);
d.readBool(16, &m_writeToFile, false);
d.readString(17, &m_data, "");
d.readU32(18, &m_rgbColor);
d.readString(19, &m_title, "802.15.4 Modulator");
if (m_channelMarker) {
d.readBlob(20, &bytetmp);
m_channelMarker->deserialize(bytetmp);
}
d.readS32(21, &m_streamIndex, 0);
d.readBool(22, &m_useReverseAPI, false);
d.readString(23, &m_reverseAPIAddress, "127.0.0.1");
d.readU32(24, &utmp, 0);
if ((utmp > 1023) && (utmp < 65535)) {
m_reverseAPIPort = utmp;
} else {
m_reverseAPIPort = 8888;
}
d.readU32(25, &utmp, 0);
m_reverseAPIDeviceIndex = utmp > 99 ? 99 : utmp;
d.readU32(26, &utmp, 0);
m_reverseAPIChannelIndex = utmp > 99 ? 99 : utmp;
d.readBool(27, &m_scramble, false);
d.readS32(28, &m_polynomial, 0x108);
d.readS32(29, (qint32 *)&m_pulseShaping, RC);
d.readReal(30, &m_beta, 1.0f);
d.readS32(31, &m_symbolSpan, 6);
d.readS32(32, &m_spectrumRate, m_rfBandwidth);
d.readS32(33, (qint32 *)&m_modulation, m_bitRate < 100000 ? IEEE_802_15_4_ModSettings::BPSK : IEEE_802_15_4_ModSettings::OQPSK);
d.readBool(34, &m_udpEnabled);
d.readString(35, &m_udpAddress, "127.0.0.1");
d.readU32(36, &utmp);
if ((utmp > 1023) && (utmp < 65535)) {
m_udpPort = utmp;
} else {
m_udpPort = 9998;
}
return true;
}
else
{
qDebug() << "IEEE_802_15_4_ModSettings::deserialize: ERROR";
resetToDefaults();
return false;
}
}
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