MMDVM_CM/NXDN2DMR/DMRSlotType.cpp

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2018-05-28 11:02:35 -04:00
/*
* Copyright (C) 2015,2016 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 "DMRSlotType.h"
#include "Golay2087.h"
#include <cstdio>
#include <cassert>
CDMRSlotType::CDMRSlotType() :
m_colorCode(0U),
m_dataType(0U)
{
}
CDMRSlotType::~CDMRSlotType()
{
}
void CDMRSlotType::putData(const unsigned char* data)
{
assert(data != NULL);
unsigned char DMRSlotType[3U];
DMRSlotType[0U] = (data[12U] << 2) & 0xFCU;
DMRSlotType[0U] |= (data[13U] >> 6) & 0x03U;
DMRSlotType[1U] = (data[13U] << 2) & 0xC0U;
DMRSlotType[1U] |= (data[19U] << 2) & 0x3CU;
DMRSlotType[1U] |= (data[20U] >> 6) & 0x03U;
DMRSlotType[2U] = (data[20U] << 2) & 0xF0U;
unsigned char code = CGolay2087::decode(DMRSlotType);
m_colorCode = (code >> 4) & 0x0FU;
m_dataType = (code >> 0) & 0x0FU;
}
void CDMRSlotType::getData(unsigned char* data) const
{
assert(data != NULL);
unsigned char DMRSlotType[3U];
DMRSlotType[0U] = (m_colorCode << 4) & 0xF0U;
DMRSlotType[0U] |= (m_dataType << 0) & 0x0FU;
DMRSlotType[1U] = 0x00U;
DMRSlotType[2U] = 0x00U;
CGolay2087::encode(DMRSlotType);
data[12U] = (data[12U] & 0xC0U) | ((DMRSlotType[0U] >> 2) & 0x3FU);
data[13U] = (data[13U] & 0x0FU) | ((DMRSlotType[0U] << 6) & 0xC0U) | ((DMRSlotType[1U] >> 2) & 0x30U);
data[19U] = (data[19U] & 0xF0U) | ((DMRSlotType[1U] >> 2) & 0x0FU);
data[20U] = (data[20U] & 0x03U) | ((DMRSlotType[1U] << 6) & 0xC0U) | ((DMRSlotType[2U] >> 2) & 0x3CU);
}
unsigned char CDMRSlotType::getColorCode() const
{
return m_colorCode;
}
void CDMRSlotType::setColorCode(unsigned char code)
{
m_colorCode = code;
}
unsigned char CDMRSlotType::getDataType() const
{
return m_dataType;
}
void CDMRSlotType::setDataType(unsigned char type)
{
m_dataType = type;
}