MMDVMHost-Private/DStarHeader.cpp

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/*
* Copyright (C) 2016 by Jonathan Naylor G4KLX
*
* 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.
*/
#include "DStarDefines.h"
#include "DStarHeader.h"
#include "CRC.h"
#include <cstdio>
#include <cassert>
#include <cstring>
CDStarHeader::CDStarHeader(const unsigned char* header) :
m_header(NULL)
{
assert(header != NULL);
m_header = new unsigned char[DSTAR_HEADER_LENGTH_BYTES];
::memcpy(m_header, header, DSTAR_HEADER_LENGTH_BYTES);
}
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CDStarHeader::CDStarHeader() :
m_header(NULL)
{
m_header = new unsigned char[DSTAR_HEADER_LENGTH_BYTES];
::memset(m_header, ' ', DSTAR_HEADER_LENGTH_BYTES);
m_header[0U] = 0x00U;
m_header[1U] = 0x00U;
m_header[2U] = 0x00U;
}
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CDStarHeader::~CDStarHeader()
{
delete[] m_header;
}
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CDStarHeader& CDStarHeader::operator=(const CDStarHeader& header)
{
if (&header != this)
::memcpy(m_header, header.m_header, DSTAR_HEADER_LENGTH_BYTES);
return *this;
}
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bool CDStarHeader::isRepeater() const
{
return (m_header[0U] & DSTAR_REPEATER_MASK) == DSTAR_REPEATER_MASK;
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}
void CDStarHeader::setRepeater(bool on)
{
if (on)
m_header[0U] |= DSTAR_REPEATER_MASK;
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else
m_header[0U] &= ~DSTAR_REPEATER_MASK;
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}
bool CDStarHeader::isDataPacket() const
{
return (m_header[0U] & DSTAR_DATA_MASK) == DSTAR_DATA_MASK;
}
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void CDStarHeader::setUnavailable(bool on)
{
if (on)
m_header[0U] |= DSTAR_RELAY_UNAVAILABLE;
else
m_header[0U] &= ~DSTAR_RELAY_UNAVAILABLE;
}
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void CDStarHeader::getMyCall1(unsigned char* call1) const
{
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assert(call1 != NULL);
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::memcpy(call1, m_header + 27U, DSTAR_LONG_CALLSIGN_LENGTH);
}
void CDStarHeader::getMyCall2(unsigned char* call2) const
{
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assert(call2 != NULL);
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::memcpy(call2, m_header + 35U, DSTAR_SHORT_CALLSIGN_LENGTH);
}
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void CDStarHeader::setMyCall1(const unsigned char* call1)
{
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assert(call1 != NULL);
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::memcpy(m_header + 27U, call1, DSTAR_LONG_CALLSIGN_LENGTH);
}
void CDStarHeader::setMyCall2(const unsigned char* call2)
{
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assert(call2 != NULL);
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::memcpy(m_header + 35U, call2, DSTAR_SHORT_CALLSIGN_LENGTH);
}
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void CDStarHeader::getRPTCall1(unsigned char* call1) const
{
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assert(call1 != NULL);
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::memcpy(call1, m_header + 11U, DSTAR_LONG_CALLSIGN_LENGTH);
}
void CDStarHeader::getRPTCall2(unsigned char* call2) const
{
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assert(call2 != NULL);
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::memcpy(call2, m_header + 3U, DSTAR_LONG_CALLSIGN_LENGTH);
}
void CDStarHeader::setRPTCall1(const unsigned char* call1)
{
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assert(call1 != NULL);
::memcpy(m_header + 11U, call1, DSTAR_LONG_CALLSIGN_LENGTH);
}
void CDStarHeader::setRPTCall2(const unsigned char* call2)
{
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assert(call2 != NULL);
::memcpy(m_header + 3U, call2, DSTAR_LONG_CALLSIGN_LENGTH);
}
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void CDStarHeader::getYourCall(unsigned char* call) const
{
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assert(call != NULL);
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::memcpy(call, m_header + 19U, DSTAR_LONG_CALLSIGN_LENGTH);
}
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void CDStarHeader::setYourCall(const unsigned char* call)
{
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assert(call != NULL);
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::memcpy(m_header + 19U, call, DSTAR_LONG_CALLSIGN_LENGTH);
}
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void CDStarHeader::get(unsigned char* header) const
{
assert(header != NULL);
::memcpy(header, m_header, DSTAR_HEADER_LENGTH_BYTES);
CCRC::addCCITT161(header, DSTAR_HEADER_LENGTH_BYTES);
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}