MMDVMHost-Private/POCSAGControl.h

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/*
* Copyright (C) 2018,2019,2020 by Jonathan Naylor G4KLX
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*
* 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.
*/
#if !defined(POCSAGControl_H)
#define POCSAGControl_H
#include "POCSAGNetwork.h"
#include "POCSAGDefines.h"
#include "RingBuffer.h"
#include "Display.h"
#include "Defines.h"
#include <cstdint>
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#include <string>
#include <deque>
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struct POCSAGData {
unsigned int m_ric;
std::string m_text;
std::string m_display;
std::deque<uint32_t> m_buffer;
};
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class CPOCSAGControl {
public:
CPOCSAGControl(CPOCSAGNetwork* network, CDisplay* display);
~CPOCSAGControl();
void sendPage(unsigned int ric, const std::string& text);
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unsigned int readModem(unsigned char* data);
void clock(unsigned int ms);
void enable(bool enabled);
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private:
CPOCSAGNetwork* m_network;
CDisplay* m_display;
CRingBuffer<unsigned char> m_queue;
unsigned int m_frames;
unsigned int m_count;
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enum POCSAG_STATE {
PS_NONE,
PS_WAITING,
PS_SENDING,
PS_ENDING
};
std::deque<uint32_t> m_output;
std::deque<uint32_t> m_buffer;
unsigned int m_ric;
std::deque<POCSAGData*> m_data;
POCSAG_STATE m_state;
bool m_enabled;
FILE* m_fp;
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bool readNetwork();
void writeQueue();
bool processData();
void addAddress(unsigned char functional, unsigned int ric, std::deque<uint32_t>& buffer) const;
void packASCII(const std::string& text, std::deque<uint32_t>& buffer) const;
void packNumeric(const std::string& text, std::deque<uint32_t>& buffer) const;
void addBCHAndParity(uint32_t& word) const;
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bool openFile();
bool writeFile(const unsigned char* data);
void closeFile();
void decodeROT1(const std::string& in, unsigned int start, std::string& out) const;
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};
#endif