Jonathan Naylor
9 years ago
parent
e2ee965375
commit
d432297f24
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/*
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* Copyright (C) 2010-2014,2016 by Jonathan Naylor G4KLX
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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; either version 2 of the License, or
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* (at your option) any later version.
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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 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, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "APRSWriter.h"
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#include "YSFDefines.h"
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#include <cstdio>
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#include <cassert>
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#include <cstring>
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#include <ctime>
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CAPRSWriter::CAPRSWriter(const std::string& callsign, const std::string& password, const std::string& address, unsigned int port) :
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m_thread(NULL),
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m_enabled(false),
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m_idTimer(1000U, 20U * 60U), // 20 minutes
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m_callsign(),
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m_txFrequency(0U),
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m_rxFrequency(0U),
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m_latitude(0.0F),
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m_longitude(0.0F),
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m_height(0),
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m_band()
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{
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assert(!callsign.empty());
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assert(!password.empty());
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assert(!address.empty());
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assert(port > 0U);
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m_thread = new CAPRSWriterThread(callsign, password, address, port);
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}
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CAPRSWriter::~CAPRSWriter()
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{
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}
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void CAPRSWriter::setInfo(unsigned int txFrequency, unsigned int rxFrequency, float latitude, float longitude, int height)
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{
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m_txFrequency = txFrequency;
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m_rxFrequency = rxFrequency;
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m_latitude = latitude;
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m_longitude = longitude;
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m_height = height;
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if (txFrequency >= 1200000000U)
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m_band = "A";
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else if (txFrequency >= 420000000U)
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m_band = "B";
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else if (txFrequency >= 144000000U)
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m_band = "C";
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else if (txFrequency >= 50000000U)
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m_band = "D";
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else if (txFrequency >= 28000000U)
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m_band = "D";
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}
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bool CAPRSWriter::open()
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{
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return m_thread->start();
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}
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void CAPRSWriter::write(const unsigned char* source, const char* type, unsigned char radio, float fLatitude, float fLongitude)
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{
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assert(source != NULL);
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assert(type != NULL);
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char callsign[11U];
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::memcpy(callsign, source, YSF_CALLSIGN_LENGTH);
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callsign[YSF_CALLSIGN_LENGTH] = 0x00U;
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char* p = ::strchr(callsign, ' ');
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if (p != NULL)
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*p = 0x00U;
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p = ::strchr(callsign, '/');
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if (p != NULL)
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*p = 0x00U;
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double tempLat = ::fabs(fLatitude);
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double tempLong = ::fabs(fLongitude);
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double latitude = ::floor(tempLat);
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double longitude = ::floor(tempLong);
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latitude = (tempLat - latitude) * 60.0 + latitude * 100.0;
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longitude = (tempLong - longitude) * 60.0 + longitude * 100.0;
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char lat[20U];
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if (latitude >= 1000.0F)
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::sprintf(lat, "%.2lf", latitude);
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else if (latitude >= 100.0F)
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::sprintf(lat, "0%.2lf", latitude);
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else if (latitude >= 10.0F)
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::sprintf(lat, "00%.2lf", latitude);
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else
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::sprintf(lat, "000%.2lf", latitude);
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char lon[20U];
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if (longitude >= 10000.0F)
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::sprintf(lon, "%.2lf", longitude);
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else if (longitude >= 1000.0F)
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::sprintf(lon, "0%.2lf", longitude);
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else if (longitude >= 100.0F)
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::sprintf(lon, "00%.2lf", longitude);
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else if (longitude >= 10.0F)
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::sprintf(lon, "000%.2lf", longitude);
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else
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::sprintf(lon, "0000%.2lf", longitude);
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// Convert commas to periods in the latitude, longitude and frequencies
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p = ::strchr(lat, ',');
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if (p != NULL)
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*p = '.';
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p = ::strchr(lon, ',');
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if (p != NULL)
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*p = '.';
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char symbol;
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switch (radio) {
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case 0x24U:
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case 0x28U:
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symbol = '[';
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break;
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case 0x25U:
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case 0x29U:
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symbol = '>';
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break;
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case 0x26U:
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symbol = 'r';
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break;
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default:
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symbol = '-';
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break;
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}
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char output[300U];
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::sprintf(output, "%s>APDPRS,C4FM*,qAR,%s-%s:!%s%c/%s%c%c %s via MMDVM",
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callsign, m_callsign.c_str(), m_band.c_str(),
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lat, (fLatitude < 0.0F) ? 'S' : 'N',
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lon, (fLongitude < 0.0F) ? 'W' : 'E',
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symbol, type);
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m_thread->write(output);
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}
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void CAPRSWriter::clock(unsigned int ms)
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{
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m_idTimer.clock(ms);
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if (m_idTimer.hasExpired()) {
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sendIdFrames();
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m_idTimer.start();
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}
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}
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void CAPRSWriter::close()
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{
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m_thread->stop();
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}
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void CAPRSWriter::sendIdFrames()
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{
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if (!m_thread->isConnected())
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return;
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time_t now;
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::time(&now);
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struct tm* tm = ::gmtime(&now);
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// Default values aren't passed on
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if (m_latitude == 0.0F && m_longitude == 0.0F)
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return;
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char desc[100U];
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if (m_txFrequency != 0U) {
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float offset = float(int(m_rxFrequency) - int(m_txFrequency)) / 1000000.0F;
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::sprintf(desc, "MMDVM Voice %.5lfMHz %c%.4lfMHz",
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float(m_txFrequency) / 1000000.0F,
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offset < 0.0F ? '-' : '+',
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::fabs(offset));
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} else {
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::strcpy(desc, "MMDVM Voice");
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}
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char* band;
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if (m_txFrequency >= 1200000000U)
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band = "1.2";
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else if (m_txFrequency >= 420000000U)
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band = "440";
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else if (m_txFrequency >= 144000000U)
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band = "2m";
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else if (m_txFrequency >= 50000000U)
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band = "6m";
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else if (m_txFrequency >= 28000000U)
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band = "10m";
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double tempLat = ::fabs(m_latitude);
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double tempLong = ::fabs(m_longitude);
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double latitude = ::floor(tempLat);
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double longitude = ::floor(tempLong);
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latitude = (tempLat - latitude) * 60.0 + latitude * 100.0;
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longitude = (tempLong - longitude) * 60.0 + longitude * 100.0;
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char lat[20U];
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if (latitude >= 1000.0F)
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::sprintf(lat, "%.2lf", latitude);
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else if (latitude >= 100.0F)
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::sprintf(lat, "0%.2lf", latitude);
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else if (latitude >= 10.0F)
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::sprintf(lat, "00%.2lf", latitude);
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else
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::sprintf(lat, "000%.2lf", latitude);
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char lon[20U];
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if (longitude >= 10000.0F)
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::sprintf(lon, "%.2lf", longitude);
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else if (longitude >= 1000.0F)
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::sprintf(lon, "0%.2lf", longitude);
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else if (longitude >= 100.0F)
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::sprintf(lon, "00%.2lf", longitude);
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else if (longitude >= 10.0F)
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::sprintf(lon, "000%.2lf", longitude);
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else
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::sprintf(lon, "0000%.2lf", longitude);
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// Convert commas to periods in the latitude, longitude and frequencies
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char* p = ::strchr(lat, ',');
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if (p != NULL)
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*p = '.';
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p = ::strchr(lon, ',');
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if (p != NULL)
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*p = '.';
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p = ::strchr(desc, ',');
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if (p != NULL)
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*p = '.';
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char output[500U];
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::sprintf(output, "%s-S>APDG03,TCPIP*,qAC,%s-NDS:;%-7s%-2s*%02d%02d%02dz%s%cD%s%ca/A=%06.0f%s %s",
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m_callsign.c_str(), m_callsign.c_str(), m_callsign.c_str(), m_band.c_str(),
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tm->tm_mday, tm->tm_hour, tm->tm_min,
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lat, (m_latitude < 0.0F) ? 'S' : 'N',
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lon, (m_longitude < 0.0F) ? 'W' : 'E',
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float(m_height) * 3.28F, band, desc);
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m_thread->write(output);
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::sprintf(output, "%s-%s>APDG04,TCPIP*,qAC,%s-%sS:!%s%cD%s%c&/A=%06.0f%s %s",
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m_callsign.c_str(), m_band.c_str(), m_callsign.c_str(), m_band.c_str(),
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lat, (m_latitude < 0.0F) ? 'S' : 'N',
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lon, (m_longitude < 0.0F) ? 'W' : 'E',
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float(m_height) * 3.28F, band, desc);
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m_thread->write(output);
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m_idTimer.start();
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}
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@ -0,0 +1,57 @@
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/*
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* Copyright (C) 2010,2011,2012,2016 by Jonathan Naylor G4KLX
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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; either version 2 of the License, or
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* (at your option) any later version.
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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 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, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef APRSWriter_H
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#define APRSWriter_H
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#include "APRSWriterThread.h"
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#include "Timer.h"
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#include <string>
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class CAPRSWriter {
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public:
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CAPRSWriter(const std::string& callsign, const std::string& password, const std::string& address, unsigned int port);
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~CAPRSWriter();
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bool open();
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void setInfo(unsigned int txFrequency, unsigned int rxFrequency, float latitude, float longitude, int height);
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void write(const unsigned char* source, const char* type, unsigned char radio, float latitude, float longitude);
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void clock(unsigned int ms);
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void close();
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private:
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CAPRSWriterThread* m_thread;
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bool m_enabled;
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CTimer m_idTimer;
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std::string m_callsign;
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unsigned int m_txFrequency;
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unsigned int m_rxFrequency;
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float m_latitude;
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float m_longitude;
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int m_height;
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std::string m_band;
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void sendIdFrames();
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};
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#endif
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Reference in new issue