Add experimental RT8 GPS data handling.

APRSHelper.cpp

@@ -0,0 +1,111 @@
+/*
+*   Copyright (C) 2017 Tony Bailey
+*
+*   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; either version 2 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 for more details.
+*
+*   You should have received a copy of the GNU General Public License
+*   along with this program; if not, write to the Free Software
+*   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*
+*
+************************************************************
+*
+*   A wrapper class for the APRS utilities send GPS data to an APRS server
+*
+*/
+
+#include "APRSHelper.h"
+
+#include <cstdio>
+#include <cassert>
+#include <cstring>
+#include <algorithm>
+#include <iostream>
+
+CAPRSHelper::CAPRSHelper(const std::string& callsign, const std::string& suffix, const std::string& password, const std::string& address, unsigned int port)
+:
+m_writer(callsign, suffix, password, address, port),
+m_buffer(NULL)
+{
+   m_buffer = new unsigned char[300U];
+}
+
+CAPRSHelper::~CAPRSHelper()
+{
+	delete[] m_buffer;    
+}
+
+bool CAPRSHelper::open()
+{
+    return m_writer.open();
+}
+
+void CAPRSHelper::send(std::string callsign, float latitude, float longitude, int altitude )
+{    
+    unsigned char source[10U];    
+    copy( callsign.begin(), callsign.end(), source );
+    
+    char type[11U];
+    ::strcpy(type, "MD-390/RT8");
+    
+    // Source: Callsign
+    // Type: Radio Type
+    // symbol?:
+    //  default (unset) is a House '/-'
+    //  0x24U 
+    //  0x25U
+    //  0x26U - ??
+    //  0x28U - Human
+    //  0x29U - Normal Car '/>'
+    //  lat
+    //  long
+    //::sprintf(m_buffer[4U], 0x28U);
+    m_writer.write(source, type, 0x28U, latitude, longitude, altitude); 
+}
+    
+void CAPRSHelper::close()
+{
+    m_writer.close();
+}
+
+/*
+ *   Uncomment this section for local testing and build it without MMDVMHost in the Makefile
+ */
+
+
+/*
+int main(void)
+{
+    std::string callsign = "N9OTJ";
+    std::string suffix = "11";
+    std::string password = "14479";
+    std::string address = "aprs.mcducklabs.com";
+    int port = 14580;    
+	CAPRSHelper* helper = new CAPRSHelper(callsign, suffix, password, address, port);
+
+	helper->open();
+    // Wait 6 seconds for the server to connect before sending data
+    usleep(1000*1000*6);
+    
+    // Send the GPS packet
+    helper->send();
+    
+    // Need to go into an endless loop and give the APRSWriterThread time to cycle through the message queue
+    for (;;)
+    {
+        // Ctrl-C out of the test program once the packet is sent
+    }
+
+	delete helper;
+    
+    return 0;
+}
+*/