113 lines
2.3 KiB
C++
113 lines
2.3 KiB
C++
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/*
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* Copyright (C) 2018 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; version 2 of the License.
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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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#include "POCSAGControl.h"
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#include "Utils.h"
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#include "Log.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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// #define DUMP_POCSAG
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const unsigned char BIT_MASK_TABLE[] = { 0x80U, 0x40U, 0x20U, 0x10U, 0x08U, 0x04U, 0x02U, 0x01U };
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#define WRITE_BIT1(p,i,b) p[(i)>>3] = (b) ? (p[(i)>>3] | BIT_MASK_TABLE[(i)&7]) : (p[(i)>>3] & ~BIT_MASK_TABLE[(i)&7])
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#define READ_BIT1(p,i) (p[(i)>>3] & BIT_MASK_TABLE[(i)&7])
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CPOCSAGControl::CPOCSAGControl(CPOCSAGNetwork* network, CDisplay* display) :
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m_network(network),
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m_display(display),
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m_queue(5000U, "POCSAG Control"),
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m_fp(NULL)
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{
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assert(display != NULL);
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}
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CPOCSAGControl::~CPOCSAGControl()
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{
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}
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unsigned int CPOCSAGControl::readModem(unsigned char* data)
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{
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assert(data != NULL);
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if (m_queue.isEmpty())
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return 0U;
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unsigned char len = 0U;
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m_queue.getData(&len, 1U);
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m_queue.getData(data, len);
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return len;
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}
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void CPOCSAGControl::writeNetwork()
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{
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unsigned char netData[40U];
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unsigned int length = m_network->read(netData);
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if (length == 0U)
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return;
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}
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void CPOCSAGControl::clock(unsigned int ms)
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{
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if (m_network != NULL)
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writeNetwork();
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}
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bool CPOCSAGControl::openFile()
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{
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if (m_fp != NULL)
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return true;
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time_t t;
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::time(&t);
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struct tm* tm = ::localtime(&t);
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char name[100U];
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::sprintf(name, "POCSAG_%04d%02d%02d_%02d%02d%02d.ambe", tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec);
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m_fp = ::fopen(name, "wb");
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if (m_fp == NULL)
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return false;
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::fwrite("POCSAG", 1U, 3U, m_fp);
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return true;
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}
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bool CPOCSAGControl::writeFile(const unsigned char* data)
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{
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if (m_fp == NULL)
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return false;
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::fwrite(data, 1U, POCSAG_FRAME_LENGTH_BYTES, m_fp);
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return true;
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}
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void CPOCSAGControl::closeFile()
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{
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if (m_fp != NULL) {
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::fclose(m_fp);
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m_fp = NULL;
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}
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}
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