g4klx/DMRGateway
1
0
Fork 0
mirror of https://github.com/g4klx/DMRGateway.git synced 2025-12-06 05:32:01 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity

Add the TG rewrite code.

Browse source
This commit is contained in:
Jonathan Naylor 2017-04-28 16:45:05 +01:00
parent ee978a6521
commit 6e9156497d
30 changed files with 2745 additions and 34 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

347
BPTC19696.cpp Normal file
View file

@ -0,0 +1,347 @@
/*
* Copyright (C) 2012 by Ian Wraith
* Copyright (C) 2015 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 "BPTC19696.h"
#include "Hamming.h"
#include "Utils.h"
#include <cstdio>
#include <cassert>
#include <cstring>
CBPTC19696::CBPTC19696() :
m_rawData(NULL),
m_deInterData(NULL)
{
m_rawData = new bool[196];
m_deInterData = new bool[196];
}
CBPTC19696::~CBPTC19696()
{
delete[] m_rawData;
delete[] m_deInterData;
}
// The main decode function
void CBPTC19696::decode(const unsigned char* in, unsigned char* out)
{
assert(in != NULL);
assert(out != NULL);
// Get the raw binary
decodeExtractBinary(in);
// Deinterleave
decodeDeInterleave();
// Error check
decodeErrorCheck();
// Extract Data
decodeExtractData(out);
}
// The main encode function
void CBPTC19696::encode(const unsigned char* in, unsigned char* out)
{
assert(in != NULL);
assert(out != NULL);
// Extract Data
encodeExtractData(in);
// Error check
encodeErrorCheck();
// Deinterleave
encodeInterleave();
// Get the raw binary
encodeExtractBinary(out);
}
void CBPTC19696::decodeExtractBinary(const unsigned char* in)
{
// First block
CUtils::byteToBitsBE(in[0U], m_rawData + 0U);
CUtils::byteToBitsBE(in[1U], m_rawData + 8U);
CUtils::byteToBitsBE(in[2U], m_rawData + 16U);
CUtils::byteToBitsBE(in[3U], m_rawData + 24U);
CUtils::byteToBitsBE(in[4U], m_rawData + 32U);
CUtils::byteToBitsBE(in[5U], m_rawData + 40U);
CUtils::byteToBitsBE(in[6U], m_rawData + 48U);
CUtils::byteToBitsBE(in[7U], m_rawData + 56U);
CUtils::byteToBitsBE(in[8U], m_rawData + 64U);
CUtils::byteToBitsBE(in[9U], m_rawData + 72U);
CUtils::byteToBitsBE(in[10U], m_rawData + 80U);
CUtils::byteToBitsBE(in[11U], m_rawData + 88U);
CUtils::byteToBitsBE(in[12U], m_rawData + 96U);
// Handle the two bits
bool bits[8U];
CUtils::byteToBitsBE(in[20U], bits);
m_rawData[98U] = bits[6U];
m_rawData[99U] = bits[7U];
// Second block
CUtils::byteToBitsBE(in[21U], m_rawData + 100U);
CUtils::byteToBitsBE(in[22U], m_rawData + 108U);
CUtils::byteToBitsBE(in[23U], m_rawData + 116U);
CUtils::byteToBitsBE(in[24U], m_rawData + 124U);
CUtils::byteToBitsBE(in[25U], m_rawData + 132U);
CUtils::byteToBitsBE(in[26U], m_rawData + 140U);
CUtils::byteToBitsBE(in[27U], m_rawData + 148U);
CUtils::byteToBitsBE(in[28U], m_rawData + 156U);
CUtils::byteToBitsBE(in[29U], m_rawData + 164U);
CUtils::byteToBitsBE(in[30U], m_rawData + 172U);
CUtils::byteToBitsBE(in[31U], m_rawData + 180U);
CUtils::byteToBitsBE(in[32U], m_rawData + 188U);
}
// Deinterleave the raw data
void CBPTC19696::decodeDeInterleave()
{
for (unsigned int i = 0U; i < 196U; i++)
m_deInterData[i] = false;
// The first bit is R(3) which is not used so can be ignored
for (unsigned int a = 0U; a < 196U; a++) {
// Calculate the interleave sequence
unsigned int interleaveSequence = (a * 181U) % 196U;
// Shuffle the data
m_deInterData[a] = m_rawData[interleaveSequence];
}
}
// Check each row with a Hamming (15,11,3) code and each column with a Hamming (13,9,3) code
void CBPTC19696::decodeErrorCheck()
{
bool fixing;
unsigned int count = 0U;
do {
fixing = false;
// Run through each of the 15 columns
bool col[13U];
for (unsigned int c = 0U; c < 15U; c++) {
unsigned int pos = c + 1U;
for (unsigned int a = 0U; a < 13U; a++) {
col[a] = m_deInterData[pos];
pos = pos + 15U;
}
if (CHamming::decode1393(col)) {
unsigned int pos = c + 1U;
for (unsigned int a = 0U; a < 13U; a++) {
m_deInterData[pos] = col[a];
pos = pos + 15U;
}
fixing = true;
}
}
// Run through each of the 9 rows containing data
for (unsigned int r = 0U; r < 9U; r++) {
unsigned int pos = (r * 15U) + 1U;
if (CHamming::decode15113_2(m_deInterData + pos))
fixing = true;
}
count++;
} while (fixing && count < 5U);
}
// Extract the 96 bits of payload
void CBPTC19696::decodeExtractData(unsigned char* data) const
{
bool bData[96U];
unsigned int pos = 0U;
for (unsigned int a = 4U; a <= 11U; a++, pos++)
bData[pos] = m_deInterData[a];
for (unsigned int a = 16U; a <= 26U; a++, pos++)
bData[pos] = m_deInterData[a];
for (unsigned int a = 31U; a <= 41U; a++, pos++)
bData[pos] = m_deInterData[a];
for (unsigned int a = 46U; a <= 56U; a++, pos++)
bData[pos] = m_deInterData[a];
for (unsigned int a = 61U; a <= 71U; a++, pos++)
bData[pos] = m_deInterData[a];
for (unsigned int a = 76U; a <= 86U; a++, pos++)
bData[pos] = m_deInterData[a];
for (unsigned int a = 91U; a <= 101U; a++, pos++)
bData[pos] = m_deInterData[a];
for (unsigned int a = 106U; a <= 116U; a++, pos++)
bData[pos] = m_deInterData[a];
for (unsigned int a = 121U; a <= 131U; a++, pos++)
bData[pos] = m_deInterData[a];
CUtils::bitsToByteBE(bData + 0U, data[0U]);
CUtils::bitsToByteBE(bData + 8U, data[1U]);
CUtils::bitsToByteBE(bData + 16U, data[2U]);
CUtils::bitsToByteBE(bData + 24U, data[3U]);
CUtils::bitsToByteBE(bData + 32U, data[4U]);
CUtils::bitsToByteBE(bData + 40U, data[5U]);
CUtils::bitsToByteBE(bData + 48U, data[6U]);
CUtils::bitsToByteBE(bData + 56U, data[7U]);
CUtils::bitsToByteBE(bData + 64U, data[8U]);
CUtils::bitsToByteBE(bData + 72U, data[9U]);
CUtils::bitsToByteBE(bData + 80U, data[10U]);
CUtils::bitsToByteBE(bData + 88U, data[11U]);
}
// Extract the 96 bits of payload
void CBPTC19696::encodeExtractData(const unsigned char* in) const
{
bool bData[96U];
CUtils::byteToBitsBE(in[0U], bData + 0U);
CUtils::byteToBitsBE(in[1U], bData + 8U);
CUtils::byteToBitsBE(in[2U], bData + 16U);
CUtils::byteToBitsBE(in[3U], bData + 24U);
CUtils::byteToBitsBE(in[4U], bData + 32U);
CUtils::byteToBitsBE(in[5U], bData + 40U);
CUtils::byteToBitsBE(in[6U], bData + 48U);
CUtils::byteToBitsBE(in[7U], bData + 56U);
CUtils::byteToBitsBE(in[8U], bData + 64U);
CUtils::byteToBitsBE(in[9U], bData + 72U);
CUtils::byteToBitsBE(in[10U], bData + 80U);
CUtils::byteToBitsBE(in[11U], bData + 88U);
for (unsigned int i = 0U; i < 196U; i++)
m_deInterData[i] = false;
unsigned int pos = 0U;
for (unsigned int a = 4U; a <= 11U; a++, pos++)
m_deInterData[a] = bData[pos];
for (unsigned int a = 16U; a <= 26U; a++, pos++)
m_deInterData[a] = bData[pos];
for (unsigned int a = 31U; a <= 41U; a++, pos++)
m_deInterData[a] = bData[pos];
for (unsigned int a = 46U; a <= 56U; a++, pos++)
m_deInterData[a] = bData[pos];
for (unsigned int a = 61U; a <= 71U; a++, pos++)
m_deInterData[a] = bData[pos];
for (unsigned int a = 76U; a <= 86U; a++, pos++)
m_deInterData[a] = bData[pos];
for (unsigned int a = 91U; a <= 101U; a++, pos++)
m_deInterData[a] = bData[pos];
for (unsigned int a = 106U; a <= 116U; a++, pos++)
m_deInterData[a] = bData[pos];
for (unsigned int a = 121U; a <= 131U; a++, pos++)
m_deInterData[a] = bData[pos];
}
// Check each row with a Hamming (15,11,3) code and each column with a Hamming (13,9,3) code
void CBPTC19696::encodeErrorCheck()
{
// Run through each of the 9 rows containing data
for (unsigned int r = 0U; r < 9U; r++) {
unsigned int pos = (r * 15U) + 1U;
CHamming::encode15113_2(m_deInterData + pos);
}
// Run through each of the 15 columns
bool col[13U];
for (unsigned int c = 0U; c < 15U; c++) {
unsigned int pos = c + 1U;
for (unsigned int a = 0U; a < 13U; a++) {
col[a] = m_deInterData[pos];
pos = pos + 15U;
}
CHamming::encode1393(col);
pos = c + 1U;
for (unsigned int a = 0U; a < 13U; a++) {
m_deInterData[pos] = col[a];
pos = pos + 15U;
}
}
}
// Interleave the raw data
void CBPTC19696::encodeInterleave()
{
for (unsigned int i = 0U; i < 196U; i++)
m_rawData[i] = false;
// The first bit is R(3) which is not used so can be ignored
for (unsigned int a = 0U; a < 196U; a++) {
// Calculate the interleave sequence
unsigned int interleaveSequence = (a * 181U) % 196U;
// Unshuffle the data
m_rawData[interleaveSequence] = m_deInterData[a];
}
}
void CBPTC19696::encodeExtractBinary(unsigned char* data)
{
// First block
CUtils::bitsToByteBE(m_rawData + 0U, data[0U]);
CUtils::bitsToByteBE(m_rawData + 8U, data[1U]);
CUtils::bitsToByteBE(m_rawData + 16U, data[2U]);
CUtils::bitsToByteBE(m_rawData + 24U, data[3U]);
CUtils::bitsToByteBE(m_rawData + 32U, data[4U]);
CUtils::bitsToByteBE(m_rawData + 40U, data[5U]);
CUtils::bitsToByteBE(m_rawData + 48U, data[6U]);
CUtils::bitsToByteBE(m_rawData + 56U, data[7U]);
CUtils::bitsToByteBE(m_rawData + 64U, data[8U]);
CUtils::bitsToByteBE(m_rawData + 72U, data[9U]);
CUtils::bitsToByteBE(m_rawData + 80U, data[10U]);
CUtils::bitsToByteBE(m_rawData + 88U, data[11U]);
// Handle the two bits
unsigned char byte;
CUtils::bitsToByteBE(m_rawData + 96U, byte);
data[12U] = (data[12U] & 0x3FU) | ((byte >> 0) & 0xC0U);
data[20U] = (data[20U] & 0xFCU) | ((byte >> 4) & 0x03U);
// Second block
CUtils::bitsToByteBE(m_rawData + 100U, data[21U]);
CUtils::bitsToByteBE(m_rawData + 108U, data[22U]);
CUtils::bitsToByteBE(m_rawData + 116U, data[23U]);
CUtils::bitsToByteBE(m_rawData + 124U, data[24U]);
CUtils::bitsToByteBE(m_rawData + 132U, data[25U]);
CUtils::bitsToByteBE(m_rawData + 140U, data[26U]);
CUtils::bitsToByteBE(m_rawData + 148U, data[27U]);
CUtils::bitsToByteBE(m_rawData + 156U, data[28U]);
CUtils::bitsToByteBE(m_rawData + 164U, data[29U]);
CUtils::bitsToByteBE(m_rawData + 172U, data[30U]);
CUtils::bitsToByteBE(m_rawData + 180U, data[31U]);
CUtils::bitsToByteBE(m_rawData + 188U, data[32U]);
}

47
BPTC19696.h Normal file
View file

@ -0,0 +1,47 @@
/*
* Copyright (C) 2015 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.
*/
#if !defined(BPTC19696_H)
#define BPTC19696_H
class CBPTC19696
{
public:
CBPTC19696();
~CBPTC19696();
void decode(const unsigned char* in, unsigned char* out);
void encode(const unsigned char* in, unsigned char* out);
private:
bool* m_rawData;
bool* m_deInterData;
void decodeExtractBinary(const unsigned char* in);
void decodeErrorCheck();
void decodeDeInterleave();
void decodeExtractData(unsigned char* data) const;
void encodeExtractData(const unsigned char* in) const;
void encodeInterleave();
void encodeErrorCheck();
void encodeExtractBinary(unsigned char* data);
};
#endif

240
CRC.cpp Normal file
View file

@ -0,0 +1,240 @@
/*
* 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 "CRC.h"
#include "Utils.h"
#include "Log.h"
#include <cstdint>
#include <cstdio>
#include <cassert>
#include <cmath>
const uint8_t CRC8_TABLE[] = {
0x00, 0x07, 0x0E, 0x09, 0x1C, 0x1B, 0x12, 0x15, 0x38, 0x3F, 0x36, 0x31,
0x24, 0x23, 0x2A, 0x2D, 0x70, 0x77, 0x7E, 0x79, 0x6C, 0x6B, 0x62, 0x65,
0x48, 0x4F, 0x46, 0x41, 0x54, 0x53, 0x5A, 0x5D, 0xE0, 0xE7, 0xEE, 0xE9,
0xFC, 0xFB, 0xF2, 0xF5, 0xD8, 0xDF, 0xD6, 0xD1, 0xC4, 0xC3, 0xCA, 0xCD,
0x90, 0x97, 0x9E, 0x99, 0x8C, 0x8B, 0x82, 0x85, 0xA8, 0xAF, 0xA6, 0xA1,
0xB4, 0xB3, 0xBA, 0xBD, 0xC7, 0xC0, 0xC9, 0xCE, 0xDB, 0xDC, 0xD5, 0xD2,
0xFF, 0xF8, 0xF1, 0xF6, 0xE3, 0xE4, 0xED, 0xEA, 0xB7, 0xB0, 0xB9, 0xBE,
0xAB, 0xAC, 0xA5, 0xA2, 0x8F, 0x88, 0x81, 0x86, 0x93, 0x94, 0x9D, 0x9A,
0x27, 0x20, 0x29, 0x2E, 0x3B, 0x3C, 0x35, 0x32, 0x1F, 0x18, 0x11, 0x16,
0x03, 0x04, 0x0D, 0x0A, 0x57, 0x50, 0x59, 0x5E, 0x4B, 0x4C, 0x45, 0x42,
0x6F, 0x68, 0x61, 0x66, 0x73, 0x74, 0x7D, 0x7A, 0x89, 0x8E, 0x87, 0x80,
0x95, 0x92, 0x9B, 0x9C, 0xB1, 0xB6, 0xBF, 0xB8, 0xAD, 0xAA, 0xA3, 0xA4,
0xF9, 0xFE, 0xF7, 0xF0, 0xE5, 0xE2, 0xEB, 0xEC, 0xC1, 0xC6, 0xCF, 0xC8,
0xDD, 0xDA, 0xD3, 0xD4, 0x69, 0x6E, 0x67, 0x60, 0x75, 0x72, 0x7B, 0x7C,
0x51, 0x56, 0x5F, 0x58, 0x4D, 0x4A, 0x43, 0x44, 0x19, 0x1E, 0x17, 0x10,
0x05, 0x02, 0x0B, 0x0C, 0x21, 0x26, 0x2F, 0x28, 0x3D, 0x3A, 0x33, 0x34,
0x4E, 0x49, 0x40, 0x47, 0x52, 0x55, 0x5C, 0x5B, 0x76, 0x71, 0x78, 0x7F,
0x6A, 0x6D, 0x64, 0x63, 0x3E, 0x39, 0x30, 0x37, 0x22, 0x25, 0x2C, 0x2B,
0x06, 0x01, 0x08, 0x0F, 0x1A, 0x1D, 0x14, 0x13, 0xAE, 0xA9, 0xA0, 0xA7,
0xB2, 0xB5, 0xBC, 0xBB, 0x96, 0x91, 0x98, 0x9F, 0x8A, 0x8D, 0x84, 0x83,
0xDE, 0xD9, 0xD0, 0xD7, 0xC2, 0xC5, 0xCC, 0xCB, 0xE6, 0xE1, 0xE8, 0xEF,
0xFA, 0xFD, 0xF4, 0xF3, 0x01 };
const uint16_t CCITT16_TABLE1[] = {
0x0000U, 0x1189U, 0x2312U, 0x329bU, 0x4624U, 0x57adU, 0x6536U, 0x74bfU,
0x8c48U, 0x9dc1U, 0xaf5aU, 0xbed3U, 0xca6cU, 0xdbe5U, 0xe97eU, 0xf8f7U,
0x1081U, 0x0108U, 0x3393U, 0x221aU, 0x56a5U, 0x472cU, 0x75b7U, 0x643eU,
0x9cc9U, 0x8d40U, 0xbfdbU, 0xae52U, 0xdaedU, 0xcb64U, 0xf9ffU, 0xe876U,
0x2102U, 0x308bU, 0x0210U, 0x1399U, 0x6726U, 0x76afU, 0x4434U, 0x55bdU,
0xad4aU, 0xbcc3U, 0x8e58U, 0x9fd1U, 0xeb6eU, 0xfae7U, 0xc87cU, 0xd9f5U,
0x3183U, 0x200aU, 0x1291U, 0x0318U, 0x77a7U, 0x662eU, 0x54b5U, 0x453cU,
0xbdcbU, 0xac42U, 0x9ed9U, 0x8f50U, 0xfbefU, 0xea66U, 0xd8fdU, 0xc974U,
0x4204U, 0x538dU, 0x6116U, 0x709fU, 0x0420U, 0x15a9U, 0x2732U, 0x36bbU,
0xce4cU, 0xdfc5U, 0xed5eU, 0xfcd7U, 0x8868U, 0x99e1U, 0xab7aU, 0xbaf3U,
0x5285U, 0x430cU, 0x7197U, 0x601eU, 0x14a1U, 0x0528U, 0x37b3U, 0x263aU,
0xdecdU, 0xcf44U, 0xfddfU, 0xec56U, 0x98e9U, 0x8960U, 0xbbfbU, 0xaa72U,
0x6306U, 0x728fU, 0x4014U, 0x519dU, 0x2522U, 0x34abU, 0x0630U, 0x17b9U,
0xef4eU, 0xfec7U, 0xcc5cU, 0xddd5U, 0xa96aU, 0xb8e3U, 0x8a78U, 0x9bf1U,
0x7387U, 0x620eU, 0x5095U, 0x411cU, 0x35a3U, 0x242aU, 0x16b1U, 0x0738U,
0xffcfU, 0xee46U, 0xdcddU, 0xcd54U, 0xb9ebU, 0xa862U, 0x9af9U, 0x8b70U,
0x8408U, 0x9581U, 0xa71aU, 0xb693U, 0xc22cU, 0xd3a5U, 0xe13eU, 0xf0b7U,
0x0840U, 0x19c9U, 0x2b52U, 0x3adbU, 0x4e64U, 0x5fedU, 0x6d76U, 0x7cffU,
0x9489U, 0x8500U, 0xb79bU, 0xa612U, 0xd2adU, 0xc324U, 0xf1bfU, 0xe036U,
0x18c1U, 0x0948U, 0x3bd3U, 0x2a5aU, 0x5ee5U, 0x4f6cU, 0x7df7U, 0x6c7eU,
0xa50aU, 0xb483U, 0x8618U, 0x9791U, 0xe32eU, 0xf2a7U, 0xc03cU, 0xd1b5U,
0x2942U, 0x38cbU, 0x0a50U, 0x1bd9U, 0x6f66U, 0x7eefU, 0x4c74U, 0x5dfdU,
0xb58bU, 0xa402U, 0x9699U, 0x8710U, 0xf3afU, 0xe226U, 0xd0bdU, 0xc134U,
0x39c3U, 0x284aU, 0x1ad1U, 0x0b58U, 0x7fe7U, 0x6e6eU, 0x5cf5U, 0x4d7cU,
0xc60cU, 0xd785U, 0xe51eU, 0xf497U, 0x8028U, 0x91a1U, 0xa33aU, 0xb2b3U,
0x4a44U, 0x5bcdU, 0x6956U, 0x78dfU, 0x0c60U, 0x1de9U, 0x2f72U, 0x3efbU,
0xd68dU, 0xc704U, 0xf59fU, 0xe416U, 0x90a9U, 0x8120U, 0xb3bbU, 0xa232U,
0x5ac5U, 0x4b4cU, 0x79d7U, 0x685eU, 0x1ce1U, 0x0d68U, 0x3ff3U, 0x2e7aU,
0xe70eU, 0xf687U, 0xc41cU, 0xd595U, 0xa12aU, 0xb0a3U, 0x8238U, 0x93b1U,
0x6b46U, 0x7acfU, 0x4854U, 0x59ddU, 0x2d62U, 0x3cebU, 0x0e70U, 0x1ff9U,
0xf78fU, 0xe606U, 0xd49dU, 0xc514U, 0xb1abU, 0xa022U, 0x92b9U, 0x8330U,
0x7bc7U, 0x6a4eU, 0x58d5U, 0x495cU, 0x3de3U, 0x2c6aU, 0x1ef1U, 0x0f78U };
const uint16_t CCITT16_TABLE2[] = {
0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7,
0x8108, 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF,
0x1231, 0x0210, 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6,
0x9339, 0x8318, 0xB37B, 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE,
0x2462, 0x3443, 0x0420, 0x1401, 0x64E6, 0x74C7, 0x44A4, 0x5485,
0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, 0xF5CF, 0xC5AC, 0xD58D,
0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, 0x5695, 0x46B4,
0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, 0xC7BC,
0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823,
0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B,
0x5AF5, 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12,
0xDBFD, 0xCBDC, 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A,
0x6CA6, 0x7C87, 0x4CE4, 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41,
0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, 0xAD2A, 0xBD0B, 0x8D68, 0x9D49,
0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, 0x2E32, 0x1E51, 0x0E70,
0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, 0x9F59, 0x8F78,
0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, 0xE16F,
0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067,
0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E,
0x02B1, 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256,
0xB5EA, 0xA5CB, 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D,
0x34E2, 0x24C3, 0x14A0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
0xA7DB, 0xB7FA, 0x8799, 0x97B8, 0xE75F, 0xF77E, 0xC71D, 0xD73C,
0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, 0x7676, 0x4615, 0x5634,
0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, 0xB98A, 0xA9AB,
0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, 0x28A3,
0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A,
0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92,
0xFD2E, 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9,
0x7C26, 0x6C07, 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1,
0xEF1F, 0xFF3E, 0xCF5D, 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8,
0x6E17, 0x7E36, 0x4E55, 0x5E74, 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0 };
bool CCRC::checkFiveBit(bool* in, unsigned int tcrc)
{
assert(in != NULL);
unsigned int crc;
encodeFiveBit(in, crc);
return crc == tcrc;
}
void CCRC::encodeFiveBit(const bool* in, unsigned int& tcrc)
{
assert(in != NULL);
unsigned short total = 0U;
for (unsigned int i = 0U; i < 72U; i += 8U) {
unsigned char c;
CUtils::bitsToByteBE(in + i, c);
total += c;
}
total %= 31U;
tcrc = total;
}
void CCRC::addCCITT162(unsigned char *in, unsigned int length)
{
assert(in != NULL);
assert(length > 2U);
union {
uint16_t crc16;
uint8_t crc8[2U];
};
crc16 = 0U;
for (unsigned i = 0U; i < (length - 2U); i++)
crc16 = (uint16_t(crc8[0U]) << 8) ^ CCITT16_TABLE2[crc8[1U] ^ in[i]];
crc16 = ~crc16;
in[length - 1U] = crc8[0U];
in[length - 2U] = crc8[1U];
}
bool CCRC::checkCCITT162(const unsigned char *in, unsigned int length)
{
assert(in != NULL);
assert(length > 2U);
union {
uint16_t crc16;
uint8_t crc8[2U];
};
crc16 = 0U;
for (unsigned i = 0U; i < (length - 2U); i++)
crc16 = (uint16_t(crc8[0U]) << 8) ^ CCITT16_TABLE2[crc8[1U] ^ in[i]];
crc16 = ~crc16;
return crc8[0U] == in[length - 1U] && crc8[1U] == in[length - 2U];
}
void CCRC::addCCITT161(unsigned char *in, unsigned int length)
{
assert(in != NULL);
assert(length > 2U);
union {
uint16_t crc16;
uint8_t crc8[2U];
};
crc16 = 0xFFFFU;
for (unsigned int i = 0U; i < (length - 2U); i++)
crc16 = uint16_t(crc8[1U]) ^ CCITT16_TABLE1[crc8[0U] ^ in[i]];
crc16 = ~crc16;
in[length - 2U] = crc8[0U];
in[length - 1U] = crc8[1U];
}
bool CCRC::checkCCITT161(const unsigned char *in, unsigned int length)
{
assert(in != NULL);
assert(length > 2U);
union {
uint16_t crc16;
uint8_t crc8[2U];
};
crc16 = 0xFFFFU;
for (unsigned int i = 0U; i < (length - 2U); i++)
crc16 = uint16_t(crc8[1U]) ^ CCITT16_TABLE1[crc8[0U] ^ in[i]];
crc16 = ~crc16;
return crc8[0U] == in[length - 2U] && crc8[1U] == in[length - 1U];
}
unsigned char CCRC::crc8(const unsigned char *in, unsigned int length)
{
assert(in != NULL);
uint8_t crc = 0U;
for (unsigned int i = 0U; i < length; i++)
crc = CRC8_TABLE[crc ^ in[i]];
return crc;
}

37
CRC.h Normal file
View file

@ -0,0 +1,37 @@
/*
* 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.
*/
#if !defined(CRC_H)
#define CRC_H
class CCRC
{
public:
static bool checkFiveBit(bool* in, unsigned int tcrc);
static void encodeFiveBit(const bool* in, unsigned int& tcrc);
static void addCCITT161(unsigned char* in, unsigned int length);
static void addCCITT162(unsigned char* in, unsigned int length);
static bool checkCCITT161(const unsigned char* in, unsigned int length);
static bool checkCCITT162(const unsigned char* in, unsigned int length);
static unsigned char crc8(const unsigned char* in, unsigned int length);
};
#endif

8
Conf.cpp
View file

@ -38,6 +38,7 @@ CConf::CConf(const std::string& file) :
m_file(file), m_file(file),
m_daemon(false), m_daemon(false),
m_xlxSlot(2U), m_xlxSlot(2U),
m_xlxTG(9U),
m_rptAddress("127.0.0.1"), m_rptAddress("127.0.0.1"),
m_rptPort(62032U), m_rptPort(62032U),
m_localAddress("127.0.0.1"), m_localAddress("127.0.0.1"),
@ -109,6 +110,8 @@ bool CConf::read()
m_daemon = ::atoi(value) == 1; m_daemon = ::atoi(value) == 1;
else if (::strcmp(key, "XLSSlot") == 0) else if (::strcmp(key, "XLSSlot") == 0)
m_xlxSlot = (unsigned int)::atoi(value); m_xlxSlot = (unsigned int)::atoi(value);
else if (::strcmp(key, "XLXTG") == 0)
m_xlxTG = (unsigned int)::atoi(value);
else if (::strcmp(key, "Timeout") == 0) else if (::strcmp(key, "Timeout") == 0)
m_timeout = (unsigned int)::atoi(value); m_timeout = (unsigned int)::atoi(value);
else if (::strcmp(key, "RptAddress") == 0) else if (::strcmp(key, "RptAddress") == 0)
@ -172,6 +175,11 @@ unsigned int CConf::getXLXSlot() const
return m_xlxSlot; return m_xlxSlot;
} }
unsigned int CConf::getXLXTG() const
{
return m_xlxTG;
}
std::string CConf::getRptAddress() const std::string CConf::getRptAddress() const
{ {
return m_rptAddress; return m_rptAddress;

2
Conf.h
View file

@ -33,6 +33,7 @@ public:
// The General section // The General section
bool getDaemon() const; bool getDaemon() const;
unsigned int getXLXSlot() const; unsigned int getXLXSlot() const;
unsigned int getXLXTG() const;
unsigned int getTimeout() const; unsigned int getTimeout() const;
std::string getRptAddress() const; std::string getRptAddress() const;
unsigned int getRptPort() const; unsigned int getRptPort() const;
@ -65,6 +66,7 @@ private:
std::string m_file; std::string m_file;
bool m_daemon; bool m_daemon;
unsigned int m_xlxSlot; unsigned int m_xlxSlot;
unsigned int m_xlxTG;
std::string m_rptAddress; std::string m_rptAddress;
unsigned int m_rptPort; unsigned int m_rptPort;
std::string m_localAddress; std::string m_localAddress;

12
DMRDefines.h
View file

@ -51,6 +51,18 @@ const unsigned char DIRECT_SLOT2_DATA_SYNC[] = {0x0DU, 0x75U, 0x57U, 0xF5U, 0xF
const unsigned char SYNC_MASK[] = {0x0FU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xF0U}; const unsigned char SYNC_MASK[] = {0x0FU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xF0U};
const unsigned char PAYLOAD_LEFT_MASK[] = {0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xF0U};
const unsigned char PAYLOAD_RIGHT_MASK[] = {0x0FU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU};
const unsigned char VOICE_LC_HEADER_CRC_MASK[] = {0x96U, 0x96U, 0x96U};
const unsigned char TERMINATOR_WITH_LC_CRC_MASK[] = {0x99U, 0x99U, 0x99U};
const unsigned char PI_HEADER_CRC_MASK[] = {0x69U, 0x69U};
const unsigned char DATA_HEADER_CRC_MASK[] = {0xCCU, 0xCCU};
const unsigned char CSBK_CRC_MASK[] = {0xA5U, 0xA5U};
const unsigned int DMR_SLOT_TIME = 60U;
const unsigned int AMBE_PER_SLOT = 3U;
const unsigned char DT_MASK = 0x0FU; const unsigned char DT_MASK = 0x0FU;
const unsigned char DT_VOICE_PI_HEADER = 0x00U; const unsigned char DT_VOICE_PI_HEADER = 0x00U;
const unsigned char DT_VOICE_LC_HEADER = 0x01U; const unsigned char DT_VOICE_LC_HEADER = 0x01U;

322
DMREmbeddedData.cpp Normal file
View file

@ -0,0 +1,322 @@
/*
* Copyright (C) 2015,2016,2017 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 "DMREmbeddedData.h"
#include "Hamming.h"
#include "Utils.h"
#include "CRC.h"
#include <cstdio>
#include <cassert>
#include <cstring>
CDMREmbeddedData::CDMREmbeddedData() :
m_raw(NULL),
m_state(LCS_NONE),
m_data(NULL),
m_FLCO(FLCO_GROUP),
m_valid(false)
{
m_raw = new bool[128U];
m_data = new bool[72U];
}
CDMREmbeddedData::~CDMREmbeddedData()
{
delete[] m_raw;
delete[] m_data;
}
// Add LC data (which may consist of 4 blocks) to the data store
bool CDMREmbeddedData::addData(const unsigned char* data, unsigned char lcss)
{
assert(data != NULL);
bool rawData[40U];
CUtils::byteToBitsBE(data[14U], rawData + 0U);
CUtils::byteToBitsBE(data[15U], rawData + 8U);
CUtils::byteToBitsBE(data[16U], rawData + 16U);
CUtils::byteToBitsBE(data[17U], rawData + 24U);
CUtils::byteToBitsBE(data[18U], rawData + 32U);
// Is this the first block of a 4 block embedded LC ?
if (lcss == 1U) {
for (unsigned int a = 0U; a < 32U; a++)
m_raw[a] = rawData[a + 4U];
// Show we are ready for the next LC block
m_state = LCS_FIRST;
m_valid = false;
return false;
}
// Is this the 2nd block of a 4 block embedded LC ?
if (lcss == 3U && m_state == LCS_FIRST) {
for (unsigned int a = 0U; a < 32U; a++)
m_raw[a + 32U] = rawData[a + 4U];
// Show we are ready for the next LC block
m_state = LCS_SECOND;
return false;
}
// Is this the 3rd block of a 4 block embedded LC ?
if (lcss == 3U && m_state == LCS_SECOND) {
for (unsigned int a = 0U; a < 32U; a++)
m_raw[a + 64U] = rawData[a + 4U];
// Show we are ready for the final LC block
m_state = LCS_THIRD;
return false;
}
// Is this the final block of a 4 block embedded LC ?
if (lcss == 2U && m_state == LCS_THIRD) {
for (unsigned int a = 0U; a < 32U; a++)
m_raw[a + 96U] = rawData[a + 4U];
// Show that we're not ready for any more data
m_state = LCS_NONE;
// Process the complete data block
decodeEmbeddedData();
if (m_valid)
encodeEmbeddedData();
return m_valid;
}
return false;
}
void CDMREmbeddedData::setLC(const CDMRLC& lc)
{
lc.getData(m_data);
m_FLCO = lc.getFLCO();
m_valid = true;
encodeEmbeddedData();
}
void CDMREmbeddedData::encodeEmbeddedData()
{
unsigned int crc;
CCRC::encodeFiveBit(m_data, crc);
bool data[128U];
::memset(data, 0x00U, 128U * sizeof(bool));
data[106U] = (crc & 0x01U) == 0x01U;
data[90U] = (crc & 0x02U) == 0x02U;
data[74U] = (crc & 0x04U) == 0x04U;
data[58U] = (crc & 0x08U) == 0x08U;
data[42U] = (crc & 0x10U) == 0x10U;
unsigned int b = 0U;
for (unsigned int a = 0U; a < 11U; a++, b++)
data[a] = m_data[b];
for (unsigned int a = 16U; a < 27U; a++, b++)
data[a] = m_data[b];
for (unsigned int a = 32U; a < 42U; a++, b++)
data[a] = m_data[b];
for (unsigned int a = 48U; a < 58U; a++, b++)
data[a] = m_data[b];
for (unsigned int a = 64U; a < 74U; a++, b++)
data[a] = m_data[b];
for (unsigned int a = 80U; a < 90U; a++, b++)
data[a] = m_data[b];
for (unsigned int a = 96U; a < 106U; a++, b++)
data[a] = m_data[b];
// Hamming (16,11,4) check each row except the last one
for (unsigned int a = 0U; a < 112U; a += 16U)
CHamming::encode16114(data + a);
// Add the parity bits for each column
for (unsigned int a = 0U; a < 16U; a++)
data[a + 112U] = data[a + 0U] ^ data[a + 16U] ^ data[a + 32U] ^ data[a + 48U] ^ data[a + 64U] ^ data[a + 80U] ^ data[a + 96U];
// The data is packed downwards in columns
b = 0U;
for (unsigned int a = 0U; a < 128U; a++) {
m_raw[a] = data[b];
b += 16U;
if (b > 127U)
b -= 127U;
}
}
unsigned char CDMREmbeddedData::getData(unsigned char* data, unsigned char n) const
{
assert(data != NULL);
if (n >= 1U && n < 5U) {
n--;
bool bits[40U];
::memset(bits, 0x00U, 40U * sizeof(bool));
::memcpy(bits + 4U, m_raw + n * 32U, 32U * sizeof(bool));
unsigned char bytes[5U];
CUtils::bitsToByteBE(bits + 0U, bytes[0U]);
CUtils::bitsToByteBE(bits + 8U, bytes[1U]);
CUtils::bitsToByteBE(bits + 16U, bytes[2U]);
CUtils::bitsToByteBE(bits + 24U, bytes[3U]);
CUtils::bitsToByteBE(bits + 32U, bytes[4U]);
data[14U] = (data[14U] & 0xF0U) | (bytes[0U] & 0x0FU);
data[15U] = bytes[1U];
data[16U] = bytes[2U];
data[17U] = bytes[3U];
data[18U] = (data[18U] & 0x0FU) | (bytes[4U] & 0xF0U);
switch (n) {
case 0U:
return 1U;
case 3U:
return 2U;
default:
return 3U;
}
} else {
data[14U] &= 0xF0U;
data[15U] = 0x00U;
data[16U] = 0x00U;
data[17U] = 0x00U;
data[18U] &= 0x0FU;
return 0U;
}
}
// Unpack and error check an embedded LC
void CDMREmbeddedData::decodeEmbeddedData()
{
// The data is unpacked downwards in columns
bool data[128U];
::memset(data, 0x00U, 128U * sizeof(bool));
unsigned int b = 0U;
for (unsigned int a = 0U; a < 128U; a++) {
data[b] = m_raw[a];
b += 16U;
if (b > 127U)
b -= 127U;
}
// Hamming (16,11,4) check each row except the last one
for (unsigned int a = 0U; a < 112U; a += 16U) {
if (!CHamming::decode16114(data + a))
return;
}
// Check the parity bits
for (unsigned int a = 0U; a < 16U; a++) {
bool parity = data[a + 0U] ^ data[a + 16U] ^ data[a + 32U] ^ data[a + 48U] ^ data[a + 64U] ^ data[a + 80U] ^ data[a + 96U] ^ data[a + 112U];
if (parity)
return;
}
// We have passed the Hamming check so extract the actual payload
b = 0U;
for (unsigned int a = 0U; a < 11U; a++, b++)
m_data[b] = data[a];
for (unsigned int a = 16U; a < 27U; a++, b++)
m_data[b] = data[a];
for (unsigned int a = 32U; a < 42U; a++, b++)
m_data[b] = data[a];
for (unsigned int a = 48U; a < 58U; a++, b++)
m_data[b] = data[a];
for (unsigned int a = 64U; a < 74U; a++, b++)
m_data[b] = data[a];
for (unsigned int a = 80U; a < 90U; a++, b++)
m_data[b] = data[a];
for (unsigned int a = 96U; a < 106U; a++, b++)
m_data[b] = data[a];
// Extract the 5 bit CRC
unsigned int crc = 0U;
if (data[42]) crc += 16U;
if (data[58]) crc += 8U;
if (data[74]) crc += 4U;
if (data[90]) crc += 2U;
if (data[106]) crc += 1U;
// Now CRC check this
if (!CCRC::checkFiveBit(m_data, crc))
return;
m_valid = true;
// Extract the FLCO
unsigned char flco;
CUtils::bitsToByteBE(m_data + 0U, flco);
m_FLCO = FLCO(flco & 0x3FU);
}
CDMRLC* CDMREmbeddedData::getLC() const
{
if (!m_valid)
return NULL;
if (m_FLCO != FLCO_GROUP && m_FLCO != FLCO_USER_USER)
return NULL;
return new CDMRLC(m_data);
}
bool CDMREmbeddedData::isValid() const
{
return m_valid;
}
FLCO CDMREmbeddedData::getFLCO() const
{
return m_FLCO;
}
void CDMREmbeddedData::reset()
{
m_state = LCS_NONE;
m_valid = false;
}
bool CDMREmbeddedData::getRawData(unsigned char* data) const
{
assert(data != NULL);
if (!m_valid)
return false;
CUtils::bitsToByteBE(m_data + 0U, data[0U]);
CUtils::bitsToByteBE(m_data + 8U, data[1U]);
CUtils::bitsToByteBE(m_data + 16U, data[2U]);
CUtils::bitsToByteBE(m_data + 24U, data[3U]);
CUtils::bitsToByteBE(m_data + 32U, data[4U]);
CUtils::bitsToByteBE(m_data + 40U, data[5U]);
CUtils::bitsToByteBE(m_data + 48U, data[6U]);
CUtils::bitsToByteBE(m_data + 56U, data[7U]);
CUtils::bitsToByteBE(m_data + 64U, data[8U]);
return true;
}

63
DMREmbeddedData.h Normal file
View file

@ -0,0 +1,63 @@
/*
* Copyright (C) 2015,2016,2017 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.
*/
#ifndef DMREmbeddedData_H
#define DMREmbeddedData_H
#include "DMRDefines.h"
#include "DMRLC.h"
enum LC_STATE {
LCS_NONE,
LCS_FIRST,
LCS_SECOND,
LCS_THIRD
};
class CDMREmbeddedData
{
public:
CDMREmbeddedData();
~CDMREmbeddedData();
bool addData(const unsigned char* data, unsigned char lcss);
CDMRLC* getLC() const;
void setLC(const CDMRLC& lc);
unsigned char getData(unsigned char* data, unsigned char n) const;
bool getRawData(unsigned char* data) const;
bool isValid() const;
FLCO getFLCO() const;
void reset();
private:
bool* m_raw;
LC_STATE m_state;
bool* m_data;
FLCO m_FLCO;
bool m_valid;
void decodeEmbeddedData();
void encodeEmbeddedData();
};
#endif

99
DMRFullLC.cpp Normal file
View file

@ -0,0 +1,99 @@
/*
* Copyright (C) 2012 by Ian Wraith
* 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 "DMRFullLC.h"
#include "DMRDefines.h"
#include "RS129.h"
#include "Utils.h"
#include "Log.h"
#include <cstdio>
#include <cassert>
CDMRFullLC::CDMRFullLC() :
m_bptc()
{
}
CDMRFullLC::~CDMRFullLC()
{
}
CDMRLC* CDMRFullLC::decode(const unsigned char* data, unsigned char type)
{
assert(data != NULL);
unsigned char lcData[12U];
m_bptc.decode(data, lcData);
switch (type) {
case DT_VOICE_LC_HEADER:
lcData[9U] ^= VOICE_LC_HEADER_CRC_MASK[0U];
lcData[10U] ^= VOICE_LC_HEADER_CRC_MASK[1U];
lcData[11U] ^= VOICE_LC_HEADER_CRC_MASK[2U];
break;
case DT_TERMINATOR_WITH_LC:
lcData[9U] ^= TERMINATOR_WITH_LC_CRC_MASK[0U];
lcData[10U] ^= TERMINATOR_WITH_LC_CRC_MASK[1U];
lcData[11U] ^= TERMINATOR_WITH_LC_CRC_MASK[2U];
break;
default:
::LogError("Unsupported LC type - %d", int(type));
return NULL;
}
if (!CRS129::check(lcData))
return NULL;
return new CDMRLC(lcData);
}
void CDMRFullLC::encode(const CDMRLC& lc, unsigned char* data, unsigned char type)
{
assert(data != NULL);
unsigned char lcData[12U];
lc.getData(lcData);
unsigned char parity[4U];
CRS129::encode(lcData, 9U, parity);
switch (type) {
case DT_VOICE_LC_HEADER:
lcData[9U] = parity[2U] ^ VOICE_LC_HEADER_CRC_MASK[0U];
lcData[10U] = parity[1U] ^ VOICE_LC_HEADER_CRC_MASK[1U];
lcData[11U] = parity[0U] ^ VOICE_LC_HEADER_CRC_MASK[2U];
break;
case DT_TERMINATOR_WITH_LC:
lcData[9U] = parity[2U] ^ TERMINATOR_WITH_LC_CRC_MASK[0U];
lcData[10U] = parity[1U] ^ TERMINATOR_WITH_LC_CRC_MASK[1U];
lcData[11U] = parity[0U] ^ TERMINATOR_WITH_LC_CRC_MASK[2U];
break;
default:
::LogError("Unsupported LC type - %d", int(type));
return;
}
m_bptc.encode(lcData, data);
}

42
DMRFullLC.h Normal file
View file

@ -0,0 +1,42 @@
/*
* 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.
*/
#ifndef DMRFullLC_H
#define DMRFullLC_H
#include "DMRLC.h"
#include "DMRSlotType.h"
#include "BPTC19696.h"
class CDMRFullLC
{
public:
CDMRFullLC();
~CDMRFullLC();
CDMRLC* decode(const unsigned char* data, unsigned char type);
void encode(const CDMRLC& lc, unsigned char* data, unsigned char type);
private:
CBPTC19696 m_bptc;
};
#endif

18
DMRGateway.cpp
View file

@ -114,7 +114,9 @@ m_conf(confFile),
m_mmdvm(NULL), m_mmdvm(NULL),
m_dmrNetwork(NULL), m_dmrNetwork(NULL),
m_xlxNetwork(NULL), m_xlxNetwork(NULL),
m_reflector(0U) m_reflector(0U),
m_rptRewrite(),
m_xlxRewrite()
{ {
} }
@ -227,12 +229,16 @@ int CDMRGateway::run()
LogMessage("MMDVM has connected"); LogMessage("MMDVM has connected");
unsigned int xlxSlot = m_conf.getXLXSlot(); unsigned int xlxSlot = m_conf.getXLXSlot();
unsigned int xlxTG = m_conf.getXLXTG();
unsigned int timeout = m_conf.getTimeout(); unsigned int timeout = m_conf.getTimeout();
LogInfo("Id: %u", m_mmdvm->getId()); LogInfo("Id: %u", m_mmdvm->getId());
LogInfo("XLX Local Slot: %u", xlxSlot); LogInfo("XLX Local Slot: %u", xlxSlot);
LogInfo("XLX Local TG: %u", xlxTG);
LogInfo("Timeout: %us", timeout); LogInfo("Timeout: %us", timeout);
m_rptRewrite.setParams(xlxSlot, xlxTG);
m_xlxRewrite.setParams(XLX_SLOT, XLX_TG);
ret = createDMRNetwork(); ret = createDMRNetwork();
if (!ret) if (!ret)
@ -261,8 +267,8 @@ int CDMRGateway::run()
FLCO flco = data.getFLCO(); FLCO flco = data.getFLCO();
unsigned int id = data.getDstId(); unsigned int id = data.getDstId();
if (flco == FLCO_GROUP && id == XLX_TG) { if (flco == FLCO_GROUP && id == xlxTG) {
data.setSlotNo(XLX_SLOT); m_xlxRewrite.process(data);
m_xlxNetwork->write(data); m_xlxNetwork->write(data);
status = DMRGWS_REFLECTOR; status = DMRGWS_REFLECTOR;
timer.start(); timer.start();
@ -273,7 +279,7 @@ int CDMRGateway::run()
m_reflector = reflector; m_reflector = reflector;
} }
data.setSlotNo(XLX_SLOT); m_xlxRewrite.process(data);
m_xlxNetwork->write(data); m_xlxNetwork->write(data);
status = DMRGWS_REFLECTOR; status = DMRGWS_REFLECTOR;
timer.start(); timer.start();
@ -292,7 +298,7 @@ int CDMRGateway::run()
if (status == DMRGWS_NONE || status == DMRGWS_REFLECTOR) { if (status == DMRGWS_NONE || status == DMRGWS_REFLECTOR) {
unsigned int slotNo = data.getSlotNo(); unsigned int slotNo = data.getSlotNo();
if (slotNo == XLX_SLOT) { if (slotNo == XLX_SLOT) {
data.setSlotNo(xlxSlot); m_rptRewrite.process(data);
m_mmdvm->write(data); m_mmdvm->write(data);
status = DMRGWS_REFLECTOR; status = DMRGWS_REFLECTOR;
timer.start(); timer.start();
@ -307,7 +313,7 @@ int CDMRGateway::run()
// Stop BM from using the same TG as XLX // Stop BM from using the same TG as XLX
unsigned int dstId = data.getDstId(); unsigned int dstId = data.getDstId();
FLCO flco = data.getFLCO(); FLCO flco = data.getFLCO();
if (flco != FLCO_GROUP || dstId != XLX_TG) { if (flco != FLCO_GROUP || dstId != xlxTG) {
if (status == DMRGWS_NONE || status == DMRGWS_NETWORK) { if (status == DMRGWS_NONE || status == DMRGWS_NETWORK) {
m_mmdvm->write(data); m_mmdvm->write(data);
status = DMRGWS_NETWORK; status = DMRGWS_NETWORK;

3
DMRGateway.h
View file

@ -21,6 +21,7 @@
#include "MMDVMNetwork.h" #include "MMDVMNetwork.h"
#include "DMRNetwork.h" #include "DMRNetwork.h"
#include "Rewrite.h"
#include "Conf.h" #include "Conf.h"
#include <string> #include <string>
@ -39,6 +40,8 @@ private:
CDMRNetwork* m_dmrNetwork; CDMRNetwork* m_dmrNetwork;
CDMRNetwork* m_xlxNetwork; CDMRNetwork* m_xlxNetwork;
unsigned int m_reflector; unsigned int m_reflector;
CRewrite m_rptRewrite;
CRewrite m_xlxRewrite;
bool createMMDVM(); bool createMMDVM();
bool createDMRNetwork(); bool createDMRNetwork();

1
DMRGateway.ini
View file

@ -1,5 +1,6 @@
[General] [General]
XLXSlot=2 XLXSlot=2
XLXTG=9
Timeout=10 Timeout=10
RptAddress=127.0.0.1 RptAddress=127.0.0.1
RptPort=62032 RptPort=62032

20
DMRGateway.vcxproj
View file

@ -146,14 +146,24 @@
</Link> </Link>
</ItemDefinitionGroup> </ItemDefinitionGroup>
<ItemGroup> <ItemGroup>
<ClInclude Include="BPTC19696.h" />
<ClInclude Include="Conf.h" /> <ClInclude Include="Conf.h" />
<ClInclude Include="CRC.h" />
<ClInclude Include="DMRData.h" /> <ClInclude Include="DMRData.h" />
<ClInclude Include="DMRDefines.h" /> <ClInclude Include="DMRDefines.h" />
<ClInclude Include="DMREmbeddedData.h" />
<ClInclude Include="DMRFullLC.h" />
<ClInclude Include="DMRGateway.h" /> <ClInclude Include="DMRGateway.h" />
<ClInclude Include="DMRLC.h" />
<ClInclude Include="DMRNetwork.h" /> <ClInclude Include="DMRNetwork.h" />
<ClInclude Include="DMRSlotType.h" />
<ClInclude Include="Golay2087.h" />
<ClInclude Include="Hamming.h" />
<ClInclude Include="Log.h" /> <ClInclude Include="Log.h" />
<ClInclude Include="MMDVMNetwork.h" /> <ClInclude Include="MMDVMNetwork.h" />
<ClInclude Include="Rewrite.h" />
<ClInclude Include="RingBuffer.h" /> <ClInclude Include="RingBuffer.h" />
<ClInclude Include="RS129.h" />
<ClInclude Include="SHA256.h" /> <ClInclude Include="SHA256.h" />
<ClInclude Include="StopWatch.h" /> <ClInclude Include="StopWatch.h" />
<ClInclude Include="Thread.h" /> <ClInclude Include="Thread.h" />
@ -163,12 +173,22 @@
<ClInclude Include="Version.h" /> <ClInclude Include="Version.h" />
</ItemGroup> </ItemGroup>
<ItemGroup> <ItemGroup>
<ClCompile Include="BPTC19696.cpp" />
<ClCompile Include="Conf.cpp" /> <ClCompile Include="Conf.cpp" />
<ClCompile Include="CRC.cpp" />
<ClCompile Include="DMRData.cpp" /> <ClCompile Include="DMRData.cpp" />
<ClCompile Include="DMREmbeddedData.cpp" />
<ClCompile Include="DMRFullLC.cpp" />
<ClCompile Include="DMRGateway.cpp" /> <ClCompile Include="DMRGateway.cpp" />
<ClCompile Include="DMRLC.cpp" />
<ClCompile Include="DMRNetwork.cpp" /> <ClCompile Include="DMRNetwork.cpp" />
<ClCompile Include="DMRSlotType.cpp" />
<ClCompile Include="Golay2087.cpp" />
<ClCompile Include="Hamming.cpp" />
<ClCompile Include="Log.cpp" /> <ClCompile Include="Log.cpp" />
<ClCompile Include="MMDVMNetwork.cpp" /> <ClCompile Include="MMDVMNetwork.cpp" />
<ClCompile Include="Rewrite.cpp" />
<ClCompile Include="RS129.cpp" />
<ClCompile Include="SHA256.cpp" /> <ClCompile Include="SHA256.cpp" />
<ClCompile Include="StopWatch.cpp" /> <ClCompile Include="StopWatch.cpp" />
<ClCompile Include="Thread.cpp" /> <ClCompile Include="Thread.cpp" />

60
DMRGateway.vcxproj.filters
View file

@ -56,6 +56,36 @@
<ClInclude Include="Version.h"> <ClInclude Include="Version.h">
<Filter>Header Files</Filter> <Filter>Header Files</Filter>
</ClInclude> </ClInclude>
<ClInclude Include="Rewrite.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="DMRFullLC.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="DMRLC.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="DMRSlotType.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="BPTC19696.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="DMREmbeddedData.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="Golay2087.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="Hamming.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="RS129.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="CRC.h">
<Filter>Header Files</Filter>
</ClInclude>
</ItemGroup> </ItemGroup>
<ItemGroup> <ItemGroup>
<ClCompile Include="Conf.cpp"> <ClCompile Include="Conf.cpp">
@ -94,5 +124,35 @@
<ClCompile Include="Utils.cpp"> <ClCompile Include="Utils.cpp">
<Filter>Source Files</Filter> <Filter>Source Files</Filter>
</ClCompile> </ClCompile>
<ClCompile Include="Rewrite.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="DMRFullLC.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="DMRLC.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="DMRSlotType.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="BPTC19696.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="DMREmbeddedData.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="Golay2087.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="Hamming.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="RS129.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="CRC.cpp">
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup> </ItemGroup>
</Project> </Project>

205
DMRLC.cpp Normal file
View file

@ -0,0 +1,205 @@
/*
* 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 "DMRLC.h"
#include "Utils.h"
#include <cstdio>
#include <cassert>
CDMRLC::CDMRLC(FLCO flco, unsigned int srcId, unsigned int dstId) :
m_PF(false),
m_R(false),
m_FLCO(flco),
m_FID(0U),
m_options(0U),
m_srcId(srcId),
m_dstId(dstId)
{
}
CDMRLC::CDMRLC(const unsigned char* bytes) :
m_PF(false),
m_R(false),
m_FLCO(FLCO_GROUP),
m_FID(0U),
m_options(0U),
m_srcId(0U),
m_dstId(0U)
{
assert(bytes != NULL);
m_PF = (bytes[0U] & 0x80U) == 0x80U;
m_R = (bytes[0U] & 0x40U) == 0x40U;
m_FLCO = FLCO(bytes[0U] & 0x3FU);
m_FID = bytes[1U];
m_options = bytes[2U];
m_dstId = bytes[3U] << 16 | bytes[4U] << 8 | bytes[5U];
m_srcId = bytes[6U] << 16 | bytes[7U] << 8 | bytes[8U];
}
CDMRLC::CDMRLC(const bool* bits) :
m_PF(false),
m_R(false),
m_FLCO(FLCO_GROUP),
m_FID(0U),
m_options(0U),
m_srcId(0U),
m_dstId(0U)
{
assert(bits != NULL);
m_PF = bits[0U];
m_R = bits[1U];
unsigned char temp1, temp2, temp3;
CUtils::bitsToByteBE(bits + 0U, temp1);
m_FLCO = FLCO(temp1 & 0x3FU);
CUtils::bitsToByteBE(bits + 8U, temp2);
m_FID = temp2;
CUtils::bitsToByteBE(bits + 16U, temp3);
m_options = temp3;
unsigned char d1, d2, d3;
CUtils::bitsToByteBE(bits + 24U, d1);
CUtils::bitsToByteBE(bits + 32U, d2);
CUtils::bitsToByteBE(bits + 40U, d3);
unsigned char s1, s2, s3;
CUtils::bitsToByteBE(bits + 48U, s1);
CUtils::bitsToByteBE(bits + 56U, s2);
CUtils::bitsToByteBE(bits + 64U, s3);
m_srcId = s1 << 16 | s2 << 8 | s3;
m_dstId = d1 << 16 | d2 << 8 | d3;
}
CDMRLC::CDMRLC() :
m_PF(false),
m_R(false),
m_FLCO(FLCO_GROUP),
m_FID(0U),
m_options(0U),
m_srcId(0U),
m_dstId(0U)
{
}
CDMRLC::~CDMRLC()
{
}
void CDMRLC::getData(unsigned char* bytes) const
{
assert(bytes != NULL);
bytes[0U] = (unsigned char)m_FLCO;
if (m_PF)
bytes[0U] |= 0x80U;
if (m_R)
bytes[0U] |= 0x40U;
bytes[1U] = m_FID;
bytes[2U] = m_options;
bytes[3U] = m_dstId >> 16;
bytes[4U] = m_dstId >> 8;
bytes[5U] = m_dstId >> 0;
bytes[6U] = m_srcId >> 16;
bytes[7U] = m_srcId >> 8;
bytes[8U] = m_srcId >> 0;
}
void CDMRLC::getData(bool* bits) const
{
assert(bits != NULL);
unsigned char bytes[9U];
getData(bytes);
CUtils::byteToBitsBE(bytes[0U], bits + 0U);
CUtils::byteToBitsBE(bytes[1U], bits + 8U);
CUtils::byteToBitsBE(bytes[2U], bits + 16U);
CUtils::byteToBitsBE(bytes[3U], bits + 24U);
CUtils::byteToBitsBE(bytes[4U], bits + 32U);
CUtils::byteToBitsBE(bytes[5U], bits + 40U);
CUtils::byteToBitsBE(bytes[6U], bits + 48U);
CUtils::byteToBitsBE(bytes[7U], bits + 56U);
CUtils::byteToBitsBE(bytes[8U], bits + 64U);
}
bool CDMRLC::getPF() const
{
return m_PF;
}
void CDMRLC::setPF(bool pf)
{
m_PF = pf;
}
FLCO CDMRLC::getFLCO() const
{
return m_FLCO;
}
void CDMRLC::setFLCO(FLCO flco)
{
m_FLCO = flco;
}
unsigned char CDMRLC::getFID() const
{
return m_FID;
}
void CDMRLC::setFID(unsigned char fid)
{
m_FID = fid;
}
unsigned int CDMRLC::getSrcId() const
{
return m_srcId;
}
void CDMRLC::setSrcId(unsigned int id)
{
m_srcId = id;
}
unsigned int CDMRLC::getDstId() const
{
return m_dstId;
}
void CDMRLC::setDstId(unsigned int id)
{
m_dstId = id;
}

62
DMRLC.h Normal file
View file

@ -0,0 +1,62 @@
/*
* 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.
*/
#if !defined(DMRLC_H)
#define DMRLC_H
#include "DMRDefines.h"
class CDMRLC
{
public:
CDMRLC(FLCO flco, unsigned int srcId, unsigned int dstId);
CDMRLC(const unsigned char* bytes);
CDMRLC(const bool* bits);
CDMRLC();
~CDMRLC();
void getData(unsigned char* bytes) const;
void getData(bool* bits) const;
bool getPF() const;
void setPF(bool pf);
FLCO getFLCO() const;
void setFLCO(FLCO flco);
unsigned char getFID() const;
void setFID(unsigned char fid);
unsigned int getSrcId() const;
void setSrcId(unsigned int id);
unsigned int getDstId() const;
void setDstId(unsigned int id);
private:
bool m_PF;
bool m_R;
FLCO m_FLCO;
unsigned char m_FID;
unsigned char m_options;
unsigned int m_srcId;
unsigned int m_dstId;
};
#endif

92
DMRSlotType.cpp Normal file
View file

@ -0,0 +1,92 @@
/*
* 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;
}

42
DMRSlotType.h Normal file
View file

@ -0,0 +1,42 @@
/*
* 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.
*/
#if !defined(DMRSLOTTYPE_H)
#define DMRSLOTTYPE_H
class CDMRSlotType
{
public:
CDMRSlotType();
~CDMRSlotType();
void putData(const unsigned char* data);
void getData(unsigned char* data) const;
unsigned char getColorCode() const;
void setColorCode(unsigned char code);
unsigned char getDataType() const;
void setDataType(unsigned char type);
private:
unsigned char m_colorCode;
unsigned char m_dataType;
};
#endif

262
Golay2087.cpp Normal file
View file

@ -0,0 +1,262 @@
/*
* 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 "Golay2087.h"
#include <cstdio>
#include <cassert>
const unsigned int ENCODING_TABLE_2087[] =
{0x0000U, 0xB08EU, 0xE093U, 0x501DU, 0x70A9U, 0xC027U, 0x903AU, 0x20B4U, 0x60DCU, 0xD052U, 0x804FU, 0x30C1U,
0x1075U, 0xA0FBU, 0xF0E6U, 0x4068U, 0x7036U, 0xC0B8U, 0x90A5U, 0x202BU, 0x009FU, 0xB011U, 0xE00CU, 0x5082U,
0x10EAU, 0xA064U, 0xF079U, 0x40F7U, 0x6043U, 0xD0CDU, 0x80D0U, 0x305EU, 0xD06CU, 0x60E2U, 0x30FFU, 0x8071U,
0xA0C5U, 0x104BU, 0x4056U, 0xF0D8U, 0xB0B0U, 0x003EU, 0x5023U, 0xE0ADU, 0xC019U, 0x7097U, 0x208AU, 0x9004U,
0xA05AU, 0x10D4U, 0x40C9U, 0xF047U, 0xD0F3U, 0x607DU, 0x3060U, 0x80EEU, 0xC086U, 0x7008U, 0x2015U, 0x909BU,
0xB02FU, 0x00A1U, 0x50BCU, 0xE032U, 0x90D9U, 0x2057U, 0x704AU, 0xC0C4U, 0xE070U, 0x50FEU, 0x00E3U, 0xB06DU,
0xF005U, 0x408BU, 0x1096U, 0xA018U, 0x80ACU, 0x3022U, 0x603FU, 0xD0B1U, 0xE0EFU, 0x5061U, 0x007CU, 0xB0F2U,
0x9046U, 0x20C8U, 0x70D5U, 0xC05BU, 0x8033U, 0x30BDU, 0x60A0U, 0xD02EU, 0xF09AU, 0x4014U, 0x1009U, 0xA087U,
0x40B5U, 0xF03BU, 0xA026U, 0x10A8U, 0x301CU, 0x8092U, 0xD08FU, 0x6001U, 0x2069U, 0x90E7U, 0xC0FAU, 0x7074U,
0x50C0U, 0xE04EU, 0xB053U, 0x00DDU, 0x3083U, 0x800DU, 0xD010U, 0x609EU, 0x402AU, 0xF0A4U, 0xA0B9U, 0x1037U,
0x505FU, 0xE0D1U, 0xB0CCU, 0x0042U, 0x20F6U, 0x9078U, 0xC065U, 0x70EBU, 0xA03DU, 0x10B3U, 0x40AEU, 0xF020U,
0xD094U, 0x601AU, 0x3007U, 0x8089U, 0xC0E1U, 0x706FU, 0x2072U, 0x90FCU, 0xB048U, 0x00C6U, 0x50DBU, 0xE055U,
0xD00BU, 0x6085U, 0x3098U, 0x8016U, 0xA0A2U, 0x102CU, 0x4031U, 0xF0BFU, 0xB0D7U, 0x0059U, 0x5044U, 0xE0CAU,
0xC07EU, 0x70F0U, 0x20EDU, 0x9063U, 0x7051U, 0xC0DFU, 0x90C2U, 0x204CU, 0x00F8U, 0xB076U, 0xE06BU, 0x50E5U,
0x108DU, 0xA003U, 0xF01EU, 0x4090U, 0x6024U, 0xD0AAU, 0x80B7U, 0x3039U, 0x0067U, 0xB0E9U, 0xE0F4U, 0x507AU,
0x70CEU, 0xC040U, 0x905DU, 0x20D3U, 0x60BBU, 0xD035U, 0x8028U, 0x30A6U, 0x1012U, 0xA09CU, 0xF081U, 0x400FU,
0x30E4U, 0x806AU, 0xD077U, 0x60F9U, 0x404DU, 0xF0C3U, 0xA0DEU, 0x1050U, 0x5038U, 0xE0B6U, 0xB0ABU, 0x0025U,
0x2091U, 0x901FU, 0xC002U, 0x708CU, 0x40D2U, 0xF05CU, 0xA041U, 0x10CFU, 0x307BU, 0x80F5U, 0xD0E8U, 0x6066U,
0x200EU, 0x9080U, 0xC09DU, 0x7013U, 0x50A7U, 0xE029U, 0xB034U, 0x00BAU, 0xE088U, 0x5006U, 0x001BU, 0xB095U,
0x9021U, 0x20AFU, 0x70B2U, 0xC03CU, 0x8054U, 0x30DAU, 0x60C7U, 0xD049U, 0xF0FDU, 0x4073U, 0x106EU, 0xA0E0U,
0x90BEU, 0x2030U, 0x702DU, 0xC0A3U, 0xE017U, 0x5099U, 0x0084U, 0xB00AU, 0xF062U, 0x40ECU, 0x10F1U, 0xA07FU,
0x80CBU, 0x3045U, 0x6058U, 0xD0D6U};
const unsigned int DECODING_TABLE_1987[] =
{0x00000U, 0x00001U, 0x00002U, 0x00003U, 0x00004U, 0x00005U, 0x00006U, 0x00007U, 0x00008U, 0x00009U, 0x0000AU, 0x0000BU, 0x0000CU,
0x0000DU, 0x0000EU, 0x24020U, 0x00010U, 0x00011U, 0x00012U, 0x00013U, 0x00014U, 0x00015U, 0x00016U, 0x00017U, 0x00018U, 0x00019U,
0x0001AU, 0x0001BU, 0x0001CU, 0x0001DU, 0x48040U, 0x01480U, 0x00020U, 0x00021U, 0x00022U, 0x00023U, 0x00024U, 0x00025U, 0x00026U,
0x24008U, 0x00028U, 0x00029U, 0x0002AU, 0x24004U, 0x0002CU, 0x24002U, 0x24001U, 0x24000U, 0x00030U, 0x00031U, 0x00032U, 0x08180U,
0x00034U, 0x00C40U, 0x00036U, 0x00C42U, 0x00038U, 0x43000U, 0x0003AU, 0x43002U, 0x02902U, 0x24012U, 0x02900U, 0x24010U, 0x00040U,
0x00041U, 0x00042U, 0x00043U, 0x00044U, 0x00045U, 0x00046U, 0x00047U, 0x00048U, 0x00049U, 0x0004AU, 0x02500U, 0x0004CU, 0x0004DU,
0x48010U, 0x48011U, 0x00050U, 0x00051U, 0x00052U, 0x21200U, 0x00054U, 0x00C20U, 0x48008U, 0x48009U, 0x00058U, 0x00059U, 0x48004U,
0x48005U, 0x48002U, 0x48003U, 0x48000U, 0x48001U, 0x00060U, 0x00061U, 0x00062U, 0x00063U, 0x00064U, 0x00C10U, 0x10300U, 0x0B000U,
0x00068U, 0x00069U, 0x01880U, 0x01881U, 0x40181U, 0x40180U, 0x24041U, 0x24040U, 0x00070U, 0x00C04U, 0x00072U, 0x00C06U, 0x00C01U,
0x00C00U, 0x00C03U, 0x00C02U, 0x05204U, 0x00C0CU, 0x48024U, 0x48025U, 0x05200U, 0x00C08U, 0x48020U, 0x48021U, 0x00080U, 0x00081U,
0x00082U, 0x00083U, 0x00084U, 0x00085U, 0x00086U, 0x00087U, 0x00088U, 0x00089U, 0x0008AU, 0x50200U, 0x0008CU, 0x0A800U, 0x01411U,
0x01410U, 0x00090U, 0x00091U, 0x00092U, 0x08120U, 0x00094U, 0x00095U, 0x04A00U, 0x01408U, 0x00098U, 0x00099U, 0x01405U, 0x01404U,
0x01403U, 0x01402U, 0x01401U, 0x01400U, 0x000A0U, 0x000A1U, 0x000A2U, 0x08110U, 0x000A4U, 0x000A5U, 0x42400U, 0x42401U, 0x000A8U,
0x000A9U, 0x01840U, 0x01841U, 0x40141U, 0x40140U, 0x24081U, 0x24080U, 0x000B0U, 0x08102U, 0x08101U, 0x08100U, 0x000B4U, 0x08106U,
0x08105U, 0x08104U, 0x20A01U, 0x20A00U, 0x08109U, 0x08108U, 0x01423U, 0x01422U, 0x01421U, 0x01420U, 0x000C0U, 0x000C1U, 0x000C2U,
0x000C3U, 0x000C4U, 0x000C5U, 0x000C6U, 0x000C7U, 0x000C8U, 0x000C9U, 0x01820U, 0x01821U, 0x20600U, 0x40120U, 0x16000U, 0x16001U,
0x000D0U, 0x000D1U, 0x42801U, 0x42800U, 0x03100U, 0x18200U, 0x03102U, 0x18202U, 0x000D8U, 0x000D9U, 0x48084U, 0x01444U, 0x48082U,
0x01442U, 0x48080U, 0x01440U, 0x000E0U, 0x32000U, 0x01808U, 0x04600U, 0x40109U, 0x40108U, 0x0180CU, 0x4010AU, 0x01802U, 0x40104U,
0x01800U, 0x01801U, 0x40101U, 0x40100U, 0x01804U, 0x40102U, 0x0A408U, 0x08142U, 0x08141U, 0x08140U, 0x00C81U, 0x00C80U, 0x00C83U,
0x00C82U, 0x0A400U, 0x0A401U, 0x01810U, 0x01811U, 0x40111U, 0x40110U, 0x01814U, 0x40112U, 0x00100U, 0x00101U, 0x00102U, 0x00103U,
0x00104U, 0x00105U, 0x00106U, 0x41800U, 0x00108U, 0x00109U, 0x0010AU, 0x02440U, 0x0010CU, 0x0010DU, 0x0010EU, 0x02444U, 0x00110U,
0x00111U, 0x00112U, 0x080A0U, 0x00114U, 0x00115U, 0x00116U, 0x080A4U, 0x00118U, 0x00119U, 0x15000U, 0x15001U, 0x02822U, 0x02823U,
0x02820U, 0x02821U, 0x00120U, 0x00121U, 0x00122U, 0x08090U, 0x00124U, 0x00125U, 0x10240U, 0x10241U, 0x00128U, 0x00129U, 0x0012AU,
0x24104U, 0x09400U, 0x400C0U, 0x02810U, 0x24100U, 0x00130U, 0x08082U, 0x08081U, 0x08080U, 0x31001U, 0x31000U, 0x02808U, 0x08084U,
0x02806U, 0x0808AU, 0x02804U, 0x08088U, 0x02802U, 0x02803U, 0x02800U, 0x02801U, 0x00140U, 0x00141U, 0x00142U, 0x02408U, 0x00144U,
0x00145U, 0x10220U, 0x10221U, 0x00148U, 0x02402U, 0x02401U, 0x02400U, 0x400A1U, 0x400A0U, 0x02405U, 0x02404U, 0x00150U, 0x00151U,
0x00152U, 0x02418U, 0x03080U, 0x03081U, 0x03082U, 0x03083U, 0x09801U, 0x09800U, 0x02411U, 0x02410U, 0x48102U, 0x09804U, 0x48100U,
0x48101U, 0x00160U, 0x00161U, 0x10204U, 0x10205U, 0x10202U, 0x40088U, 0x10200U, 0x10201U, 0x40085U, 0x40084U, 0x02421U, 0x02420U,
0x40081U, 0x40080U, 0x10208U, 0x40082U, 0x41402U, 0x080C2U, 0x41400U, 0x080C0U, 0x00D01U, 0x00D00U, 0x10210U, 0x10211U, 0x40095U,
0x40094U, 0x02844U, 0x080C8U, 0x40091U, 0x40090U, 0x02840U, 0x02841U, 0x00180U, 0x00181U, 0x00182U, 0x08030U, 0x00184U, 0x14400U,
0x22201U, 0x22200U, 0x00188U, 0x00189U, 0x0018AU, 0x08038U, 0x40061U, 0x40060U, 0x40063U, 0x40062U, 0x00190U, 0x08022U, 0x08021U,
0x08020U, 0x03040U, 0x03041U, 0x08025U, 0x08024U, 0x40C00U, 0x40C01U, 0x08029U, 0x08028U, 0x2C000U, 0x2C001U, 0x01501U, 0x01500U,
0x001A0U, 0x08012U, 0x08011U, 0x08010U, 0x40049U, 0x40048U, 0x08015U, 0x08014U, 0x06200U, 0x40044U, 0x30400U, 0x08018U, 0x40041U,
0x40040U, 0x40043U, 0x40042U, 0x08003U, 0x08002U, 0x08001U, 0x08000U, 0x08007U, 0x08006U, 0x08005U, 0x08004U, 0x0800BU, 0x0800AU,
0x08009U, 0x08008U, 0x40051U, 0x40050U, 0x02880U, 0x0800CU, 0x001C0U, 0x001C1U, 0x64000U, 0x64001U, 0x03010U, 0x40028U, 0x08C00U,
0x08C01U, 0x40025U, 0x40024U, 0x02481U, 0x02480U, 0x40021U, 0x40020U, 0x40023U, 0x40022U, 0x03004U, 0x03005U, 0x08061U, 0x08060U,
0x03000U, 0x03001U, 0x03002U, 0x03003U, 0x0300CU, 0x40034U, 0x30805U, 0x30804U, 0x03008U, 0x40030U, 0x30801U, 0x30800U, 0x4000DU,
0x4000CU, 0x08051U, 0x08050U, 0x40009U, 0x40008U, 0x10280U, 0x4000AU, 0x40005U, 0x40004U, 0x01900U, 0x40006U, 0x40001U, 0x40000U,
0x40003U, 0x40002U, 0x14800U, 0x08042U, 0x08041U, 0x08040U, 0x03020U, 0x40018U, 0x08045U, 0x08044U, 0x40015U, 0x40014U, 0x08049U,
0x08048U, 0x40011U, 0x40010U, 0x40013U, 0x40012U, 0x00200U, 0x00201U, 0x00202U, 0x00203U, 0x00204U, 0x00205U, 0x00206U, 0x00207U,
0x00208U, 0x00209U, 0x0020AU, 0x50080U, 0x0020CU, 0x0020DU, 0x0020EU, 0x50084U, 0x00210U, 0x00211U, 0x00212U, 0x21040U, 0x00214U,
0x00215U, 0x04880U, 0x04881U, 0x00218U, 0x00219U, 0x0E001U, 0x0E000U, 0x0021CU, 0x0021DU, 0x04888U, 0x0E004U, 0x00220U, 0x00221U,
0x00222U, 0x00223U, 0x00224U, 0x00225U, 0x10140U, 0x10141U, 0x00228U, 0x00229U, 0x0022AU, 0x24204U, 0x12401U, 0x12400U, 0x24201U,
0x24200U, 0x00230U, 0x00231U, 0x00232U, 0x21060U, 0x2A000U, 0x2A001U, 0x2A002U, 0x2A003U, 0x20881U, 0x20880U, 0x20883U, 0x20882U,
0x05040U, 0x05041U, 0x05042U, 0x24210U, 0x00240U, 0x00241U, 0x00242U, 0x21010U, 0x00244U, 0x46000U, 0x10120U, 0x10121U, 0x00248U,
0x00249U, 0x0024AU, 0x21018U, 0x20480U, 0x20481U, 0x20482U, 0x20483U, 0x00250U, 0x21002U, 0x21001U, 0x21000U, 0x18081U, 0x18080U,
0x21005U, 0x21004U, 0x12800U, 0x12801U, 0x21009U, 0x21008U, 0x05020U, 0x05021U, 0x48200U, 0x48201U, 0x00260U, 0x00261U, 0x10104U,
0x04480U, 0x10102U, 0x10103U, 0x10100U, 0x10101U, 0x62002U, 0x62003U, 0x62000U, 0x62001U, 0x05010U, 0x05011U, 0x10108U, 0x10109U,
0x0500CU, 0x21022U, 0x21021U, 0x21020U, 0x05008U, 0x00E00U, 0x10110U, 0x10111U, 0x05004U, 0x05005U, 0x05006U, 0x21028U, 0x05000U,
0x05001U, 0x05002U, 0x05003U, 0x00280U, 0x00281U, 0x00282U, 0x50008U, 0x00284U, 0x00285U, 0x04810U, 0x22100U, 0x00288U, 0x50002U,
0x50001U, 0x50000U, 0x20440U, 0x20441U, 0x50005U, 0x50004U, 0x00290U, 0x00291U, 0x04804U, 0x04805U, 0x04802U, 0x18040U, 0x04800U,
0x04801U, 0x20821U, 0x20820U, 0x50011U, 0x50010U, 0x0480AU, 0x01602U, 0x04808U, 0x01600U, 0x002A0U, 0x002A1U, 0x04441U, 0x04440U,
0x002A4U, 0x002A5U, 0x04830U, 0x04444U, 0x06100U, 0x20810U, 0x50021U, 0x50020U, 0x06104U, 0x20814U, 0x50025U, 0x50024U, 0x20809U,
0x20808U, 0x13000U, 0x08300U, 0x04822U, 0x2080CU, 0x04820U, 0x04821U, 0x20801U, 0x20800U, 0x20803U, 0x20802U, 0x20805U, 0x20804U,
0x04828U, 0x20806U, 0x002C0U, 0x002C1U, 0x04421U, 0x04420U, 0x20408U, 0x18010U, 0x2040AU, 0x18012U, 0x20404U, 0x20405U, 0x50041U,
0x50040U, 0x20400U, 0x20401U, 0x20402U, 0x20403U, 0x18005U, 0x18004U, 0x21081U, 0x21080U, 0x18001U, 0x18000U, 0x04840U, 0x18002U,
0x20414U, 0x1800CU, 0x21089U, 0x21088U, 0x20410U, 0x18008U, 0x20412U, 0x1800AU, 0x04403U, 0x04402U, 0x04401U, 0x04400U, 0x10182U,
0x04406U, 0x10180U, 0x04404U, 0x01A02U, 0x0440AU, 0x01A00U, 0x04408U, 0x20420U, 0x40300U, 0x20422U, 0x40302U, 0x04413U, 0x04412U,
0x04411U, 0x04410U, 0x18021U, 0x18020U, 0x10190U, 0x18022U, 0x20841U, 0x20840U, 0x01A10U, 0x20842U, 0x05080U, 0x05081U, 0x05082U,
0x05083U, 0x00300U, 0x00301U, 0x00302U, 0x00303U, 0x00304U, 0x00305U, 0x10060U, 0x22080U, 0x00308U, 0x00309U, 0x28800U, 0x28801U,
0x44402U, 0x44403U, 0x44400U, 0x44401U, 0x00310U, 0x00311U, 0x10C01U, 0x10C00U, 0x00314U, 0x00315U, 0x10070U, 0x10C04U, 0x00318U,
0x00319U, 0x28810U, 0x10C08U, 0x44412U, 0x00000U, 0x44410U, 0x44411U, 0x00320U, 0x60400U, 0x10044U, 0x10045U, 0x10042U, 0x0C800U,
0x10040U, 0x10041U, 0x06080U, 0x06081U, 0x06082U, 0x06083U, 0x1004AU, 0x0C808U, 0x10048U, 0x10049U, 0x58008U, 0x08282U, 0x08281U,
0x08280U, 0x10052U, 0x0C810U, 0x10050U, 0x10051U, 0x58000U, 0x58001U, 0x58002U, 0x08288U, 0x02A02U, 0x02A03U, 0x02A00U, 0x02A01U,
0x00340U, 0x00341U, 0x10024U, 0x10025U, 0x10022U, 0x10023U, 0x10020U, 0x10021U, 0x34001U, 0x34000U, 0x02601U, 0x02600U, 0x1002AU,
0x34004U, 0x10028U, 0x10029U, 0x0C400U, 0x0C401U, 0x21101U, 0x21100U, 0x60800U, 0x60801U, 0x10030U, 0x10031U, 0x0C408U, 0x34010U,
0x21109U, 0x21108U, 0x60808U, 0x60809U, 0x10038U, 0x28420U, 0x10006U, 0x10007U, 0x10004U, 0x10005U, 0x10002U, 0x10003U, 0x10000U,
0x10001U, 0x1000EU, 0x40284U, 0x1000CU, 0x1000DU, 0x1000AU, 0x40280U, 0x10008U, 0x10009U, 0x10016U, 0x10017U, 0x10014U, 0x10015U,
0x10012U, 0x10013U, 0x10010U, 0x10011U, 0x05104U, 0x44802U, 0x44801U, 0x44800U, 0x05100U, 0x05101U, 0x10018U, 0x28400U, 0x00380U,
0x00381U, 0x22005U, 0x22004U, 0x22003U, 0x22002U, 0x22001U, 0x22000U, 0x06020U, 0x06021U, 0x50101U, 0x50100U, 0x11800U, 0x11801U,
0x22009U, 0x22008U, 0x45001U, 0x45000U, 0x08221U, 0x08220U, 0x04902U, 0x22012U, 0x04900U, 0x22010U, 0x06030U, 0x45008U, 0x08229U,
0x08228U, 0x11810U, 0x11811U, 0x04908U, 0x22018U, 0x06008U, 0x06009U, 0x08211U, 0x08210U, 0x100C2U, 0x22022U, 0x100C0U, 0x22020U,
0x06000U, 0x06001U, 0x06002U, 0x06003U, 0x06004U, 0x40240U, 0x06006U, 0x40242U, 0x08203U, 0x08202U, 0x08201U, 0x08200U, 0x08207U,
0x08206U, 0x08205U, 0x08204U, 0x06010U, 0x20900U, 0x08209U, 0x08208U, 0x61002U, 0x20904U, 0x61000U, 0x61001U, 0x29020U, 0x29021U,
0x100A4U, 0x22044U, 0x100A2U, 0x22042U, 0x100A0U, 0x22040U, 0x20504U, 0x40224U, 0x0D005U, 0x0D004U, 0x20500U, 0x40220U, 0x0D001U,
0x0D000U, 0x03204U, 0x18104U, 0x08261U, 0x08260U, 0x03200U, 0x18100U, 0x03202U, 0x18102U, 0x11421U, 0x11420U, 0x00000U, 0x11422U,
0x03208U, 0x18108U, 0x0D011U, 0x0D010U, 0x29000U, 0x29001U, 0x10084U, 0x04500U, 0x10082U, 0x40208U, 0x10080U, 0x10081U, 0x06040U,
0x40204U, 0x06042U, 0x40206U, 0x40201U, 0x40200U, 0x10088U, 0x40202U, 0x29010U, 0x08242U, 0x08241U, 0x08240U, 0x10092U, 0x40218U,
0x10090U, 0x10091U, 0x11401U, 0x11400U, 0x11403U, 0x11402U, 0x40211U, 0x40210U, 0x10098U, 0x40212U, 0x00400U, 0x00401U, 0x00402U,
0x00403U, 0x00404U, 0x00405U, 0x00406U, 0x00407U, 0x00408U, 0x00409U, 0x0040AU, 0x02140U, 0x0040CU, 0x0040DU, 0x01091U, 0x01090U,
0x00410U, 0x00411U, 0x00412U, 0x00413U, 0x00414U, 0x00860U, 0x01089U, 0x01088U, 0x00418U, 0x38000U, 0x01085U, 0x01084U, 0x01083U,
0x01082U, 0x01081U, 0x01080U, 0x00420U, 0x00421U, 0x00422U, 0x00423U, 0x00424U, 0x00850U, 0x42080U, 0x42081U, 0x00428U, 0x00429U,
0x48801U, 0x48800U, 0x09100U, 0x12200U, 0x24401U, 0x24400U, 0x00430U, 0x00844U, 0x00432U, 0x00846U, 0x00841U, 0x00840U, 0x1C000U,
0x00842U, 0x00438U, 0x0084CU, 0x010A5U, 0x010A4U, 0x00849U, 0x00848U, 0x010A1U, 0x010A0U, 0x00440U, 0x00441U, 0x00442U, 0x02108U,
0x00444U, 0x00830U, 0x70001U, 0x70000U, 0x00448U, 0x02102U, 0x02101U, 0x02100U, 0x20280U, 0x20281U, 0x02105U, 0x02104U, 0x00450U,
0x00824U, 0x00452U, 0x00826U, 0x00821U, 0x00820U, 0x00823U, 0x00822U, 0x24802U, 0x02112U, 0x24800U, 0x02110U, 0x00829U, 0x00828U,
0x48400U, 0x010C0U, 0x00460U, 0x00814U, 0x04281U, 0x04280U, 0x00811U, 0x00810U, 0x00813U, 0x00812U, 0x54000U, 0x54001U, 0x02121U,
0x02120U, 0x00819U, 0x00818U, 0x0081BU, 0x0081AU, 0x00805U, 0x00804U, 0x41100U, 0x00806U, 0x00801U, 0x00800U, 0x00803U, 0x00802U,
0x0A080U, 0x0080CU, 0x0A082U, 0x0080EU, 0x00809U, 0x00808U, 0x0080BU, 0x0080AU, 0x00480U, 0x00481U, 0x00482U, 0x00483U, 0x00484U,
0x14100U, 0x42020U, 0x01018U, 0x00488U, 0x00489U, 0x01015U, 0x01014U, 0x20240U, 0x01012U, 0x01011U, 0x01010U, 0x00490U, 0x00491U,
0x0100DU, 0x0100CU, 0x0100BU, 0x0100AU, 0x01009U, 0x01008U, 0x40900U, 0x01006U, 0x01005U, 0x01004U, 0x01003U, 0x01002U, 0x01001U,
0x01000U, 0x004A0U, 0x004A1U, 0x42004U, 0x04240U, 0x42002U, 0x42003U, 0x42000U, 0x42001U, 0x30102U, 0x30103U, 0x30100U, 0x30101U,
0x4200AU, 0x01032U, 0x42008U, 0x01030U, 0x25000U, 0x25001U, 0x08501U, 0x08500U, 0x008C1U, 0x008C0U, 0x42010U, 0x01028U, 0x0A040U,
0x0A041U, 0x01025U, 0x01024U, 0x01023U, 0x01022U, 0x01021U, 0x01020U, 0x004C0U, 0x49000U, 0x04221U, 0x04220U, 0x20208U, 0x20209U,
0x08900U, 0x08901U, 0x20204U, 0x20205U, 0x02181U, 0x02180U, 0x20200U, 0x20201U, 0x20202U, 0x01050U, 0x0A028U, 0x008A4U, 0x0104DU,
0x0104CU, 0x008A1U, 0x008A0U, 0x01049U, 0x01048U, 0x0A020U, 0x0A021U, 0x01045U, 0x01044U, 0x20210U, 0x01042U, 0x01041U, 0x01040U,
0x04203U, 0x04202U, 0x04201U, 0x04200U, 0x00891U, 0x00890U, 0x42040U, 0x04204U, 0x0A010U, 0x0A011U, 0x01C00U, 0x04208U, 0x20220U,
0x40500U, 0x20222U, 0x40502U, 0x0A008U, 0x00884U, 0x04211U, 0x04210U, 0x00881U, 0x00880U, 0x00883U, 0x00882U, 0x0A000U, 0x0A001U,
0x0A002U, 0x0A003U, 0x0A004U, 0x00888U, 0x01061U, 0x01060U, 0x00500U, 0x00501U, 0x00502U, 0x02048U, 0x00504U, 0x14080U, 0x00506U,
0x14082U, 0x00508U, 0x02042U, 0x02041U, 0x02040U, 0x09020U, 0x09021U, 0x44200U, 0x02044U, 0x00510U, 0x00511U, 0x10A01U, 0x10A00U,
0x4A001U, 0x4A000U, 0x4A003U, 0x4A002U, 0x40880U, 0x40881U, 0x02051U, 0x02050U, 0x40884U, 0x01182U, 0x01181U, 0x01180U, 0x00520U,
0x60200U, 0x00522U, 0x60202U, 0x09008U, 0x09009U, 0x0900AU, 0x0900BU, 0x09004U, 0x09005U, 0x30080U, 0x02060U, 0x09000U, 0x09001U,
0x09002U, 0x09003U, 0x41042U, 0x08482U, 0x41040U, 0x08480U, 0x00941U, 0x00940U, 0x41044U, 0x00942U, 0x09014U, 0x09015U, 0x02C04U,
0x08488U, 0x09010U, 0x09011U, 0x02C00U, 0x02C01U, 0x00540U, 0x0200AU, 0x02009U, 0x02008U, 0x08882U, 0x0200EU, 0x08880U, 0x0200CU,
0x02003U, 0x02002U, 0x02001U, 0x02000U, 0x02007U, 0x02006U, 0x02005U, 0x02004U, 0x0C200U, 0x0C201U, 0x41020U, 0x02018U, 0x00921U,
0x00920U, 0x41024U, 0x00922U, 0x02013U, 0x02012U, 0x02011U, 0x02010U, 0x02017U, 0x02016U, 0x02015U, 0x02014U, 0x41012U, 0x0202AU,
0x41010U, 0x02028U, 0x26000U, 0x00910U, 0x10600U, 0x10601U, 0x02023U, 0x02022U, 0x02021U, 0x02020U, 0x09040U, 0x40480U, 0x02025U,
0x02024U, 0x41002U, 0x00904U, 0x41000U, 0x41001U, 0x00901U, 0x00900U, 0x41004U, 0x00902U, 0x4100AU, 0x02032U, 0x41008U, 0x02030U,
0x00909U, 0x00908U, 0x28201U, 0x28200U, 0x00580U, 0x14004U, 0x00582U, 0x14006U, 0x14001U, 0x14000U, 0x08840U, 0x14002U, 0x40810U,
0x40811U, 0x30020U, 0x020C0U, 0x14009U, 0x14008U, 0x01111U, 0x01110U, 0x40808U, 0x40809U, 0x08421U, 0x08420U, 0x14011U, 0x14010U,
0x01109U, 0x01108U, 0x40800U, 0x40801U, 0x40802U, 0x01104U, 0x40804U, 0x01102U, 0x01101U, 0x01100U, 0x03801U, 0x03800U, 0x30008U,
0x08410U, 0x14021U, 0x14020U, 0x42100U, 0x42101U, 0x30002U, 0x30003U, 0x30000U, 0x30001U, 0x09080U, 0x40440U, 0x30004U, 0x30005U,
0x08403U, 0x08402U, 0x08401U, 0x08400U, 0x08407U, 0x08406U, 0x08405U, 0x08404U, 0x40820U, 0x40821U, 0x30010U, 0x08408U, 0x40824U,
0x01122U, 0x01121U, 0x01120U, 0x08806U, 0x0208AU, 0x08804U, 0x02088U, 0x08802U, 0x14040U, 0x08800U, 0x08801U, 0x02083U, 0x02082U,
0x02081U, 0x02080U, 0x20300U, 0x40420U, 0x08808U, 0x02084U, 0x03404U, 0x03405U, 0x08814U, 0x02098U, 0x03400U, 0x03401U, 0x08810U,
0x08811U, 0x40840U, 0x40841U, 0x02091U, 0x02090U, 0x40844U, 0x01142U, 0x01141U, 0x01140U, 0x04303U, 0x04302U, 0x04301U, 0x04300U,
0x40409U, 0x40408U, 0x08820U, 0x08821U, 0x40405U, 0x40404U, 0x30040U, 0x020A0U, 0x40401U, 0x40400U, 0x40403U, 0x40402U, 0x41082U,
0x08442U, 0x41080U, 0x08440U, 0x00981U, 0x00980U, 0x41084U, 0x00982U, 0x0A100U, 0x11200U, 0x0A102U, 0x11202U, 0x40411U, 0x40410U,
0x40413U, 0x40412U, 0x00600U, 0x00601U, 0x00602U, 0x00603U, 0x00604U, 0x00605U, 0x00606U, 0x00607U, 0x00608U, 0x05800U, 0x0060AU,
0x05802U, 0x200C0U, 0x12020U, 0x44100U, 0x44101U, 0x00610U, 0x00611U, 0x10901U, 0x10900U, 0x51000U, 0x51001U, 0x51002U, 0x10904U,
0x00618U, 0x05810U, 0x01285U, 0x01284U, 0x51008U, 0x01282U, 0x01281U, 0x01280U, 0x00620U, 0x60100U, 0x040C1U, 0x040C0U, 0x12009U,
0x12008U, 0x21800U, 0x21801U, 0x12005U, 0x12004U, 0x12007U, 0x12006U, 0x12001U, 0x12000U, 0x12003U, 0x12002U, 0x00630U, 0x00A44U,
0x040D1U, 0x040D0U, 0x00A41U, 0x00A40U, 0x21810U, 0x00A42U, 0x12015U, 0x12014U, 0x00000U, 0x12016U, 0x12011U, 0x12010U, 0x12013U,
0x12012U, 0x00640U, 0x00641U, 0x040A1U, 0x040A0U, 0x20088U, 0x20089U, 0x2008AU, 0x040A4U, 0x20084U, 0x20085U, 0x19000U, 0x02300U,
0x20080U, 0x20081U, 0x20082U, 0x20083U, 0x0C100U, 0x0C101U, 0x21401U, 0x21400U, 0x00A21U, 0x00A20U, 0x00A23U, 0x00A22U, 0x20094U,
0x20095U, 0x19010U, 0x21408U, 0x20090U, 0x20091U, 0x20092U, 0x28120U, 0x04083U, 0x04082U, 0x04081U, 0x04080U, 0x00A11U, 0x00A10U,
0x10500U, 0x04084U, 0x200A4U, 0x0408AU, 0x04089U, 0x04088U, 0x200A0U, 0x12040U, 0x200A2U, 0x12042U, 0x00A05U, 0x00A04U, 0x04091U,
0x04090U, 0x00A01U, 0x00A00U, 0x00A03U, 0x00A02U, 0x05404U, 0x00A0CU, 0x28105U, 0x28104U, 0x05400U, 0x00A08U, 0x28101U, 0x28100U,
0x00680U, 0x00681U, 0x04061U, 0x04060U, 0x20048U, 0x20049U, 0x2004AU, 0x04064U, 0x20044U, 0x20045U, 0x50401U, 0x50400U, 0x20040U,
0x20041U, 0x20042U, 0x01210U, 0x68002U, 0x68003U, 0x68000U, 0x68001U, 0x04C02U, 0x0120AU, 0x04C00U, 0x01208U, 0x20054U, 0x01206U,
0x01205U, 0x01204U, 0x20050U, 0x01202U, 0x01201U, 0x01200U, 0x18800U, 0x04042U, 0x04041U, 0x04040U, 0x42202U, 0x04046U, 0x42200U,
0x04044U, 0x20064U, 0x0404AU, 0x04049U, 0x04048U, 0x20060U, 0x12080U, 0x20062U, 0x12082U, 0x18810U, 0x04052U, 0x04051U, 0x04050U,
0x4C009U, 0x4C008U, 0x42210U, 0x04054U, 0x20C01U, 0x20C00U, 0x20C03U, 0x20C02U, 0x4C001U, 0x4C000U, 0x01221U, 0x01220U, 0x2000CU,
0x04022U, 0x04021U, 0x04020U, 0x20008U, 0x20009U, 0x2000AU, 0x04024U, 0x20004U, 0x20005U, 0x20006U, 0x04028U, 0x20000U, 0x20001U,
0x20002U, 0x20003U, 0x2001CU, 0x04032U, 0x04031U, 0x04030U, 0x20018U, 0x18400U, 0x2001AU, 0x18402U, 0x20014U, 0x20015U, 0x20016U,
0x01244U, 0x20010U, 0x20011U, 0x20012U, 0x01240U, 0x04003U, 0x04002U, 0x04001U, 0x04000U, 0x20028U, 0x04006U, 0x04005U, 0x04004U,
0x20024U, 0x0400AU, 0x04009U, 0x04008U, 0x20020U, 0x20021U, 0x20022U, 0x0400CU, 0x04013U, 0x04012U, 0x04011U, 0x04010U, 0x00A81U,
0x00A80U, 0x04015U, 0x04014U, 0x0A200U, 0x11100U, 0x04019U, 0x04018U, 0x20030U, 0x20031U, 0x50800U, 0x50801U, 0x00700U, 0x60020U,
0x10811U, 0x10810U, 0x4400AU, 0x60024U, 0x44008U, 0x44009U, 0x44006U, 0x02242U, 0x44004U, 0x02240U, 0x44002U, 0x44003U, 0x44000U,
0x44001U, 0x0C040U, 0x10802U, 0x10801U, 0x10800U, 0x0C044U, 0x10806U, 0x10805U, 0x10804U, 0x23000U, 0x23001U, 0x10809U, 0x10808U,
0x44012U, 0x44013U, 0x44010U, 0x44011U, 0x60001U, 0x60000U, 0x60003U, 0x60002U, 0x60005U, 0x60004U, 0x10440U, 0x10441U, 0x60009U,
0x60008U, 0x44024U, 0x6000AU, 0x09200U, 0x12100U, 0x44020U, 0x44021U, 0x60011U, 0x60010U, 0x10821U, 0x10820U, 0x07003U, 0x07002U,
0x07001U, 0x07000U, 0x23020U, 0x60018U, 0x28045U, 0x28044U, 0x09210U, 0x28042U, 0x28041U, 0x28040U, 0x0C010U, 0x0C011U, 0x02209U,
0x02208U, 0x10422U, 0x10423U, 0x10420U, 0x10421U, 0x02203U, 0x02202U, 0x02201U, 0x02200U, 0x20180U, 0x20181U, 0x44040U, 0x02204U,
0x0C000U, 0x0C001U, 0x0C002U, 0x10840U, 0x0C004U, 0x0C005U, 0x0C006U, 0x10844U, 0x0C008U, 0x0C009U, 0x02211U, 0x02210U, 0x0C00CU,
0x28022U, 0x28021U, 0x28020U, 0x60041U, 0x60040U, 0x10404U, 0x04180U, 0x10402U, 0x10403U, 0x10400U, 0x10401U, 0x02223U, 0x02222U,
0x02221U, 0x02220U, 0x1040AU, 0x28012U, 0x10408U, 0x28010U, 0x0C020U, 0x0C021U, 0x41200U, 0x41201U, 0x00B01U, 0x00B00U, 0x10410U,
0x28008U, 0x11081U, 0x11080U, 0x28005U, 0x28004U, 0x28003U, 0x28002U, 0x28001U, 0x28000U, 0x52040U, 0x14204U, 0x22405U, 0x22404U,
0x14201U, 0x14200U, 0x22401U, 0x22400U, 0x20144U, 0x20145U, 0x44084U, 0x022C0U, 0x20140U, 0x20141U, 0x44080U, 0x44081U, 0x40A08U,
0x10882U, 0x10881U, 0x10880U, 0x14211U, 0x14210U, 0x1A008U, 0x10884U, 0x40A00U, 0x40A01U, 0x40A02U, 0x01304U, 0x1A002U, 0x01302U,
0x1A000U, 0x01300U, 0x60081U, 0x60080U, 0x04141U, 0x04140U, 0x60085U, 0x60084U, 0x104C0U, 0x04144U, 0x06400U, 0x06401U, 0x30200U,
0x30201U, 0x06404U, 0x40640U, 0x30204U, 0x30205U, 0x08603U, 0x08602U, 0x08601U, 0x08600U, 0x00000U, 0x08606U, 0x08605U, 0x08604U,
0x11041U, 0x11040U, 0x30210U, 0x11042U, 0x11045U, 0x11044U, 0x1A020U, 0x01320U, 0x52000U, 0x52001U, 0x04121U, 0x04120U, 0x20108U,
0x20109U, 0x08A00U, 0x08A01U, 0x20104U, 0x20105U, 0x02281U, 0x02280U, 0x20100U, 0x20101U, 0x20102U, 0x20103U, 0x0C080U, 0x0C081U,
0x0C082U, 0x04130U, 0x0C084U, 0x06808U, 0x08A10U, 0x08A11U, 0x11021U, 0x11020U, 0x11023U, 0x11022U, 0x20110U, 0x06800U, 0x20112U,
0x06802U, 0x04103U, 0x04102U, 0x04101U, 0x04100U, 0x10482U, 0x04106U, 0x10480U, 0x04104U, 0x11011U, 0x11010U, 0x04109U, 0x04108U,
0x20120U, 0x40600U, 0x20122U, 0x40602U, 0x11009U, 0x11008U, 0x22800U, 0x04110U, 0x1100DU, 0x1100CU, 0x22804U, 0x04114U, 0x11001U,
0x11000U, 0x11003U, 0x11002U, 0x11005U, 0x11004U, 0x28081U, 0x28080U};
#define X18 0x00040000 /* vector representation of X^{18} */
#define X11 0x00000800 /* vector representation of X^{11} */
#define MASK8 0xfffff800 /* auxiliary vector for testing */
#define GENPOL 0x00000c75 /* generator polinomial, g(x) */
unsigned int CGolay2087::getSyndrome1987(unsigned int pattern)
/*
* Compute the syndrome corresponding to the given pattern, i.e., the
* remainder after dividing the pattern (when considering it as the vector
* representation of a polynomial) by the generator polynomial, GENPOL.
* In the program this pattern has several meanings: (1) pattern = infomation
* bits, when constructing the encoding table; (2) pattern = error pattern,
* when constructing the decoding table; and (3) pattern = received vector, to
* obtain its syndrome in decoding.
*/
{
unsigned int aux = X18;
if (pattern >= X11) {
while (pattern & MASK8) {
while (!(aux & pattern))
aux = aux >> 1;
pattern ^= (aux / X11) * GENPOL;
}
}
return pattern;
}
unsigned char CGolay2087::decode(const unsigned char* data)
{
assert(data != NULL);
unsigned int code = (data[0U] << 11) + (data[1U] << 3) + (data[2U] >> 5);
unsigned int syndrome = getSyndrome1987(code);
unsigned int error_pattern = DECODING_TABLE_1987[syndrome];
if (error_pattern != 0x00U)
code ^= error_pattern;
return code >> 11;
}
void CGolay2087::encode(unsigned char* data)
{
assert(data != NULL);
unsigned int value = data[0U];
unsigned int cksum = ENCODING_TABLE_2087[value];
data[1U] = cksum & 0xFFU;
data[2U] = cksum >> 8;
}

32
Golay2087.h Normal file
View file

@ -0,0 +1,32 @@
/*
* Copyright (C) 2015 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.
*/
#ifndef Golay2087_H
#define Golay2087_H
class CGolay2087 {
public:
static void encode(unsigned char* data);
static unsigned char decode(const unsigned char* data);
private:
static unsigned int getSyndrome1987(unsigned int pattern);
};
#endif

349
Hamming.cpp Normal file
View file

@ -0,0 +1,349 @@
/*
* 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 "Hamming.h"
#include <cstdio>
#include <cassert>
// Hamming (15,11,3) check a boolean data array
bool CHamming::decode15113_1(bool* d)
{
assert(d != NULL);
// Calculate the parity it should have
bool c0 = d[0] ^ d[1] ^ d[2] ^ d[3] ^ d[4] ^ d[5] ^ d[6];
bool c1 = d[0] ^ d[1] ^ d[2] ^ d[3] ^ d[7] ^ d[8] ^ d[9];
bool c2 = d[0] ^ d[1] ^ d[4] ^ d[5] ^ d[7] ^ d[8] ^ d[10];
bool c3 = d[0] ^ d[2] ^ d[4] ^ d[6] ^ d[7] ^ d[9] ^ d[10];
unsigned char n = 0U;
n |= (c0 != d[11]) ? 0x01U : 0x00U;
n |= (c1 != d[12]) ? 0x02U : 0x00U;
n |= (c2 != d[13]) ? 0x04U : 0x00U;
n |= (c3 != d[14]) ? 0x08U : 0x00U;
switch (n)
{
// Parity bit errors
case 0x01U: d[11] = !d[11]; return true;
case 0x02U: d[12] = !d[12]; return true;
case 0x04U: d[13] = !d[13]; return true;
case 0x08U: d[14] = !d[14]; return true;
// Data bit errors
case 0x0FU: d[0] = !d[0]; return true;
case 0x07U: d[1] = !d[1]; return true;
case 0x0BU: d[2] = !d[2]; return true;
case 0x03U: d[3] = !d[3]; return true;
case 0x0DU: d[4] = !d[4]; return true;
case 0x05U: d[5] = !d[5]; return true;
case 0x09U: d[6] = !d[6]; return true;
case 0x0EU: d[7] = !d[7]; return true;
case 0x06U: d[8] = !d[8]; return true;
case 0x0AU: d[9] = !d[9]; return true;
case 0x0CU: d[10] = !d[10]; return true;
// No bit errors
default: return false;
}
}
void CHamming::encode15113_1(bool* d)
{
assert(d != NULL);
// Calculate the checksum this row should have
d[11] = d[0] ^ d[1] ^ d[2] ^ d[3] ^ d[4] ^ d[5] ^ d[6];
d[12] = d[0] ^ d[1] ^ d[2] ^ d[3] ^ d[7] ^ d[8] ^ d[9];
d[13] = d[0] ^ d[1] ^ d[4] ^ d[5] ^ d[7] ^ d[8] ^ d[10];
d[14] = d[0] ^ d[2] ^ d[4] ^ d[6] ^ d[7] ^ d[9] ^ d[10];
}
// Hamming (15,11,3) check a boolean data array
bool CHamming::decode15113_2(bool* d)
{
assert(d != NULL);
// Calculate the checksum this row should have
bool c0 = d[0] ^ d[1] ^ d[2] ^ d[3] ^ d[5] ^ d[7] ^ d[8];
bool c1 = d[1] ^ d[2] ^ d[3] ^ d[4] ^ d[6] ^ d[8] ^ d[9];
bool c2 = d[2] ^ d[3] ^ d[4] ^ d[5] ^ d[7] ^ d[9] ^ d[10];
bool c3 = d[0] ^ d[1] ^ d[2] ^ d[4] ^ d[6] ^ d[7] ^ d[10];
unsigned char n = 0x00U;
n |= (c0 != d[11]) ? 0x01U : 0x00U;
n |= (c1 != d[12]) ? 0x02U : 0x00U;
n |= (c2 != d[13]) ? 0x04U : 0x00U;
n |= (c3 != d[14]) ? 0x08U : 0x00U;
switch (n) {
// Parity bit errors
case 0x01U: d[11] = !d[11]; return true;
case 0x02U: d[12] = !d[12]; return true;
case 0x04U: d[13] = !d[13]; return true;
case 0x08U: d[14] = !d[14]; return true;
// Data bit errors
case 0x09U: d[0] = !d[0]; return true;
case 0x0BU: d[1] = !d[1]; return true;
case 0x0FU: d[2] = !d[2]; return true;
case 0x07U: d[3] = !d[3]; return true;
case 0x0EU: d[4] = !d[4]; return true;
case 0x05U: d[5] = !d[5]; return true;
case 0x0AU: d[6] = !d[6]; return true;
case 0x0DU: d[7] = !d[7]; return true;
case 0x03U: d[8] = !d[8]; return true;
case 0x06U: d[9] = !d[9]; return true;
case 0x0CU: d[10] = !d[10]; return true;
// No bit errors
default: return false;
}
}
void CHamming::encode15113_2(bool* d)
{
assert(d != NULL);
// Calculate the checksum this row should have
d[11] = d[0] ^ d[1] ^ d[2] ^ d[3] ^ d[5] ^ d[7] ^ d[8];
d[12] = d[1] ^ d[2] ^ d[3] ^ d[4] ^ d[6] ^ d[8] ^ d[9];
d[13] = d[2] ^ d[3] ^ d[4] ^ d[5] ^ d[7] ^ d[9] ^ d[10];
d[14] = d[0] ^ d[1] ^ d[2] ^ d[4] ^ d[6] ^ d[7] ^ d[10];
}
// Hamming (13,9,3) check a boolean data array
bool CHamming::decode1393(bool* d)
{
assert(d != NULL);
// Calculate the checksum this column should have
bool c0 = d[0] ^ d[1] ^ d[3] ^ d[5] ^ d[6];
bool c1 = d[0] ^ d[1] ^ d[2] ^ d[4] ^ d[6] ^ d[7];
bool c2 = d[0] ^ d[1] ^ d[2] ^ d[3] ^ d[5] ^ d[7] ^ d[8];
bool c3 = d[0] ^ d[2] ^ d[4] ^ d[5] ^ d[8];
unsigned char n = 0x00U;
n |= (c0 != d[9]) ? 0x01U : 0x00U;
n |= (c1 != d[10]) ? 0x02U : 0x00U;
n |= (c2 != d[11]) ? 0x04U : 0x00U;
n |= (c3 != d[12]) ? 0x08U : 0x00U;
switch (n) {
// Parity bit errors
case 0x01U: d[9] = !d[9]; return true;
case 0x02U: d[10] = !d[10]; return true;
case 0x04U: d[11] = !d[11]; return true;
case 0x08U: d[12] = !d[12]; return true;
// Data bit erros
case 0x0FU: d[0] = !d[0]; return true;
case 0x07U: d[1] = !d[1]; return true;
case 0x0EU: d[2] = !d[2]; return true;
case 0x05U: d[3] = !d[3]; return true;
case 0x0AU: d[4] = !d[4]; return true;
case 0x0DU: d[5] = !d[5]; return true;
case 0x03U: d[6] = !d[6]; return true;
case 0x06U: d[7] = !d[7]; return true;
case 0x0CU: d[8] = !d[8]; return true;
// No bit errors
default: return false;
}
}
void CHamming::encode1393(bool* d)
{
assert(d != NULL);
// Calculate the checksum this column should have
d[9] = d[0] ^ d[1] ^ d[3] ^ d[5] ^ d[6];
d[10] = d[0] ^ d[1] ^ d[2] ^ d[4] ^ d[6] ^ d[7];
d[11] = d[0] ^ d[1] ^ d[2] ^ d[3] ^ d[5] ^ d[7] ^ d[8];
d[12] = d[0] ^ d[2] ^ d[4] ^ d[5] ^ d[8];
}
// Hamming (10,6,3) check a boolean data array
bool CHamming::decode1063(bool* d)
{
assert(d != NULL);
// Calculate the checksum this column should have
bool c0 = d[0] ^ d[1] ^ d[2] ^ d[5];
bool c1 = d[0] ^ d[1] ^ d[3] ^ d[5];
bool c2 = d[0] ^ d[2] ^ d[3] ^ d[4];
bool c3 = d[1] ^ d[2] ^ d[3] ^ d[4];
unsigned char n = 0x00U;
n |= (c0 != d[6]) ? 0x01U : 0x00U;
n |= (c1 != d[7]) ? 0x02U : 0x00U;
n |= (c2 != d[8]) ? 0x04U : 0x00U;
n |= (c3 != d[9]) ? 0x08U : 0x00U;
switch (n) {
// Parity bit errors
case 0x01U: d[6] = !d[6]; return true;
case 0x02U: d[7] = !d[7]; return true;
case 0x04U: d[8] = !d[8]; return true;
case 0x08U: d[9] = !d[9]; return true;
// Data bit erros
case 0x07U: d[0] = !d[0]; return true;
case 0x0BU: d[1] = !d[1]; return true;
case 0x0DU: d[2] = !d[2]; return true;
case 0x0EU: d[3] = !d[3]; return true;
case 0x0CU: d[4] = !d[4]; return true;
case 0x03U: d[5] = !d[5]; return true;
// No bit errors
default: return false;
}
}
void CHamming::encode1063(bool* d)
{
assert(d != NULL);
// Calculate the checksum this column should have
d[6] = d[0] ^ d[1] ^ d[2] ^ d[5];
d[7] = d[0] ^ d[1] ^ d[3] ^ d[5];
d[8] = d[0] ^ d[2] ^ d[3] ^ d[4];
d[9] = d[1] ^ d[2] ^ d[3] ^ d[4];
}
// A Hamming (16,11,4) Check
bool CHamming::decode16114(bool* d)
{
assert(d != NULL);
// Calculate the checksum this column should have
bool c0 = d[0] ^ d[1] ^ d[2] ^ d[3] ^ d[5] ^ d[7] ^ d[8];
bool c1 = d[1] ^ d[2] ^ d[3] ^ d[4] ^ d[6] ^ d[8] ^ d[9];
bool c2 = d[2] ^ d[3] ^ d[4] ^ d[5] ^ d[7] ^ d[9] ^ d[10];
bool c3 = d[0] ^ d[1] ^ d[2] ^ d[4] ^ d[6] ^ d[7] ^ d[10];
bool c4 = d[0] ^ d[2] ^ d[5] ^ d[6] ^ d[8] ^ d[9] ^ d[10];
// Compare these with the actual bits
unsigned char n = 0x00U;
n |= (c0 != d[11]) ? 0x01U : 0x00U;
n |= (c1 != d[12]) ? 0x02U : 0x00U;
n |= (c2 != d[13]) ? 0x04U : 0x00U;
n |= (c3 != d[14]) ? 0x08U : 0x00U;
n |= (c4 != d[15]) ? 0x10U : 0x00U;
switch (n) {
// Parity bit errors
case 0x01U: d[11] = !d[11]; return true;
case 0x02U: d[12] = !d[12]; return true;
case 0x04U: d[13] = !d[13]; return true;
case 0x08U: d[14] = !d[14]; return true;
case 0x10U: d[15] = !d[15]; return true;
// Data bit errors
case 0x19U: d[0] = !d[0]; return true;
case 0x0BU: d[1] = !d[1]; return true;
case 0x1FU: d[2] = !d[2]; return true;
case 0x07U: d[3] = !d[3]; return true;
case 0x0EU: d[4] = !d[4]; return true;
case 0x15U: d[5] = !d[5]; return true;
case 0x1AU: d[6] = !d[6]; return true;
case 0x0DU: d[7] = !d[7]; return true;
case 0x13U: d[8] = !d[8]; return true;
case 0x16U: d[9] = !d[9]; return true;
case 0x1CU: d[10] = !d[10]; return true;
// No bit errors
case 0x00U: return true;
// Unrecoverable errors
default: return false;
}
}
void CHamming::encode16114(bool* d)
{
assert(d != NULL);
d[11] = d[0] ^ d[1] ^ d[2] ^ d[3] ^ d[5] ^ d[7] ^ d[8];
d[12] = d[1] ^ d[2] ^ d[3] ^ d[4] ^ d[6] ^ d[8] ^ d[9];
d[13] = d[2] ^ d[3] ^ d[4] ^ d[5] ^ d[7] ^ d[9] ^ d[10];
d[14] = d[0] ^ d[1] ^ d[2] ^ d[4] ^ d[6] ^ d[7] ^ d[10];
d[15] = d[0] ^ d[2] ^ d[5] ^ d[6] ^ d[8] ^ d[9] ^ d[10];
}
// A Hamming (17,12,3) Check
bool CHamming::decode17123(bool* d)
{
assert(d != NULL);
// Calculate the checksum this column should have
bool c0 = d[0] ^ d[1] ^ d[2] ^ d[3] ^ d[6] ^ d[7] ^ d[9];
bool c1 = d[0] ^ d[1] ^ d[2] ^ d[3] ^ d[4] ^ d[7] ^ d[8] ^ d[10];
bool c2 = d[1] ^ d[2] ^ d[3] ^ d[4] ^ d[5] ^ d[8] ^ d[9] ^ d[11];
bool c3 = d[0] ^ d[1] ^ d[4] ^ d[5] ^ d[7] ^ d[10];
bool c4 = d[0] ^ d[1] ^ d[2] ^ d[5] ^ d[6] ^ d[8] ^ d[11];
// Compare these with the actual bits
unsigned char n = 0x00U;
n |= (c0 != d[12]) ? 0x01U : 0x00U;
n |= (c1 != d[13]) ? 0x02U : 0x00U;
n |= (c2 != d[14]) ? 0x04U : 0x00U;
n |= (c3 != d[15]) ? 0x08U : 0x00U;
n |= (c4 != d[16]) ? 0x10U : 0x00U;
switch (n) {
// Parity bit errors
case 0x01U: d[12] = !d[12]; return true;
case 0x02U: d[13] = !d[13]; return true;
case 0x04U: d[14] = !d[14]; return true;
case 0x08U: d[15] = !d[15]; return true;
case 0x10U: d[16] = !d[16]; return true;
// Data bit errors
case 0x1BU: d[0] = !d[0]; return true;
case 0x1FU: d[1] = !d[1]; return true;
case 0x17U: d[2] = !d[2]; return true;
case 0x07U: d[3] = !d[3]; return true;
case 0x0EU: d[4] = !d[4]; return true;
case 0x1CU: d[5] = !d[5]; return true;
case 0x11U: d[6] = !d[6]; return true;
case 0x0BU: d[7] = !d[7]; return true;
case 0x16U: d[8] = !d[8]; return true;
case 0x05U: d[9] = !d[9]; return true;
case 0x0AU: d[10] = !d[10]; return true;
case 0x14U: d[11] = !d[11]; return true;
// No bit errors
case 0x00U: return true;
// Unrecoverable errors
default: return false;
}
}
void CHamming::encode17123(bool* d)
{
assert(d != NULL);
d[12] = d[0] ^ d[1] ^ d[2] ^ d[3] ^ d[6] ^ d[7] ^ d[9];
d[13] = d[0] ^ d[1] ^ d[2] ^ d[3] ^ d[4] ^ d[7] ^ d[8] ^ d[10];
d[14] = d[1] ^ d[2] ^ d[3] ^ d[4] ^ d[5] ^ d[8] ^ d[9] ^ d[11];
d[15] = d[0] ^ d[1] ^ d[4] ^ d[5] ^ d[7] ^ d[10];
d[16] = d[0] ^ d[1] ^ d[2] ^ d[5] ^ d[6] ^ d[8] ^ d[11];
}

43
Hamming.h Normal file
View file

@ -0,0 +1,43 @@
/*
* 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.
*/
#ifndef Hamming_H
#define Hamming_H
class CHamming {
public:
static void encode15113_1(bool* d);
static bool decode15113_1(bool* d);
static void encode15113_2(bool* d);
static bool decode15113_2(bool* d);
static void encode1393(bool* d);
static bool decode1393(bool* d);
static void encode1063(bool* d);
static bool decode1063(bool* d);
static void encode16114(bool* d);
static bool decode16114(bool* d);
static void encode17123(bool* d);
static bool decode17123(bool* d);
};
#endif

5
Makefile
View file

@ -1,12 +1,11 @@
# This makefile is for all platforms, but doesn't include support for the HD44780 display on the Raspberry Pi.
CC = gcc CC = gcc
CXX = g++ CXX = g++
CFLAGS = -g -O3 -Wall -std=c++0x -pthread CFLAGS = -g -O3 -Wall -std=c++0x -pthread
LIBS = -lpthread LIBS = -lpthread
LDFLAGS = -g LDFLAGS = -g
OBJECTS = Conf.o DMRData.o DMRGateway.o DMRNetwork.o Log.o MMDVMNetwork.o SHA256.o StopWatch.o Thread.o Timer.o UDPSocket.o Utils.o OBJECTS = BPTC19696.o Conf.o CRC.o DMRData.o DMREmbeddedData.o DMRFullLC.o DMRGateway.o DMRLC.o DMRNetwork.o DMRSlotType.o Golay2087.o Hamming.o Log.o MMDVMNetwork.o \
Rewrite.o RS129.o SHA256.o StopWatch.o Thread.o Timer.o UDPSocket.o Utils.o
all: DMRGateway all: DMRGateway

130
RS129.cpp Normal file
View file

@ -0,0 +1,130 @@
/*
* Copyright (C) 2015 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 "RS129.h"
#include <cstdio>
#include <cassert>
#include <cstring>
const unsigned int NPAR = 3U;
/* Maximum degree of various polynomials. */
const unsigned int MAXDEG = NPAR * 2U;
/* Generator Polynomial */
const unsigned char POLY[] = {64U, 56U, 14U, 1U, 0U, 0U, 0U, 0U, 0U, 0U, 0U, 0U};
const unsigned char EXP_TABLE[] = {
0x01U, 0x02U, 0x04U, 0x08U, 0x10U, 0x20U, 0x40U, 0x80U, 0x1DU, 0x3AU, 0x74U, 0xE8U, 0xCDU, 0x87U, 0x13U, 0x26U,
0x4CU, 0x98U, 0x2DU, 0x5AU, 0xB4U, 0x75U, 0xEAU, 0xC9U, 0x8FU, 0x03U, 0x06U, 0x0CU, 0x18U, 0x30U, 0x60U, 0xC0U,
0x9DU, 0x27U, 0x4EU, 0x9CU, 0x25U, 0x4AU, 0x94U, 0x35U, 0x6AU, 0xD4U, 0xB5U, 0x77U, 0xEEU, 0xC1U, 0x9FU, 0x23U,
0x46U, 0x8CU, 0x05U, 0x0AU, 0x14U, 0x28U, 0x50U, 0xA0U, 0x5DU, 0xBAU, 0x69U, 0xD2U, 0xB9U, 0x6FU, 0xDEU, 0xA1U,
0x5FU, 0xBEU, 0x61U, 0xC2U, 0x99U, 0x2FU, 0x5EU, 0xBCU, 0x65U, 0xCAU, 0x89U, 0x0FU, 0x1EU, 0x3CU, 0x78U, 0xF0U,
0xFDU, 0xE7U, 0xD3U, 0xBBU, 0x6BU, 0xD6U, 0xB1U, 0x7FU, 0xFEU, 0xE1U, 0xDFU, 0xA3U, 0x5BU, 0xB6U, 0x71U, 0xE2U,
0xD9U, 0xAFU, 0x43U, 0x86U, 0x11U, 0x22U, 0x44U, 0x88U, 0x0DU, 0x1AU, 0x34U, 0x68U, 0xD0U, 0xBDU, 0x67U, 0xCEU,
0x81U, 0x1FU, 0x3EU, 0x7CU, 0xF8U, 0xEDU, 0xC7U, 0x93U, 0x3BU, 0x76U, 0xECU, 0xC5U, 0x97U, 0x33U, 0x66U, 0xCCU,
0x85U, 0x17U, 0x2EU, 0x5CU, 0xB8U, 0x6DU, 0xDAU, 0xA9U, 0x4FU, 0x9EU, 0x21U, 0x42U, 0x84U, 0x15U, 0x2AU, 0x54U,
0xA8U, 0x4DU, 0x9AU, 0x29U, 0x52U, 0xA4U, 0x55U, 0xAAU, 0x49U, 0x92U, 0x39U, 0x72U, 0xE4U, 0xD5U, 0xB7U, 0x73U,
0xE6U, 0xD1U, 0xBFU, 0x63U, 0xC6U, 0x91U, 0x3FU, 0x7EU, 0xFCU, 0xE5U, 0xD7U, 0xB3U, 0x7BU, 0xF6U, 0xF1U, 0xFFU,
0xE3U, 0xDBU, 0xABU, 0x4BU, 0x96U, 0x31U, 0x62U, 0xC4U, 0x95U, 0x37U, 0x6EU, 0xDCU, 0xA5U, 0x57U, 0xAEU, 0x41U,
0x82U, 0x19U, 0x32U, 0x64U, 0xC8U, 0x8DU, 0x07U, 0x0EU, 0x1CU, 0x38U, 0x70U, 0xE0U, 0xDDU, 0xA7U, 0x53U, 0xA6U,
0x51U, 0xA2U, 0x59U, 0xB2U, 0x79U, 0xF2U, 0xF9U, 0xEFU, 0xC3U, 0x9BU, 0x2BU, 0x56U, 0xACU, 0x45U, 0x8AU, 0x09U,
0x12U, 0x24U, 0x48U, 0x90U, 0x3DU, 0x7AU, 0xF4U, 0xF5U, 0xF7U, 0xF3U, 0xFBU, 0xEBU, 0xCBU, 0x8BU, 0x0BU, 0x16U,
0x2CU, 0x58U, 0xB0U, 0x7DU, 0xFAU, 0xE9U, 0xCFU, 0x83U, 0x1BU, 0x36U, 0x6CU, 0xD8U, 0xADU, 0x47U, 0x8EU, 0x01U,
0x02U, 0x04U, 0x08U, 0x10U, 0x20U, 0x40U, 0x80U, 0x1DU, 0x3AU, 0x74U, 0xE8U, 0xCDU, 0x87U, 0x13U, 0x26U, 0x4CU,
0x98U, 0x2DU, 0x5AU, 0xB4U, 0x75U, 0xEAU, 0xC9U, 0x8FU, 0x03U, 0x06U, 0x0CU, 0x18U, 0x30U, 0x60U, 0xC0U, 0x9DU,
0x27U, 0x4EU, 0x9CU, 0x25U, 0x4AU, 0x94U, 0x35U, 0x6AU, 0xD4U, 0xB5U, 0x77U, 0xEEU, 0xC1U, 0x9FU, 0x23U, 0x46U,
0x8CU, 0x05U, 0x0AU, 0x14U, 0x28U, 0x50U, 0xA0U, 0x5DU, 0xBAU, 0x69U, 0xD2U, 0xB9U, 0x6FU, 0xDEU, 0xA1U, 0x5FU,
0xBEU, 0x61U, 0xC2U, 0x99U, 0x2FU, 0x5EU, 0xBCU, 0x65U, 0xCAU, 0x89U, 0x0FU, 0x1EU, 0x3CU, 0x78U, 0xF0U, 0xFDU,
0xE7U, 0xD3U, 0xBBU, 0x6BU, 0xD6U, 0xB1U, 0x7FU, 0xFEU, 0xE1U, 0xDFU, 0xA3U, 0x5BU, 0xB6U, 0x71U, 0xE2U, 0xD9U,
0xAFU, 0x43U, 0x86U, 0x11U, 0x22U, 0x44U, 0x88U, 0x0DU, 0x1AU, 0x34U, 0x68U, 0xD0U, 0xBDU, 0x67U, 0xCEU, 0x81U,
0x1FU, 0x3EU, 0x7CU, 0xF8U, 0xEDU, 0xC7U, 0x93U, 0x3BU, 0x76U, 0xECU, 0xC5U, 0x97U, 0x33U, 0x66U, 0xCCU, 0x85U,
0x17U, 0x2EU, 0x5CU, 0xB8U, 0x6DU, 0xDAU, 0xA9U, 0x4FU, 0x9EU, 0x21U, 0x42U, 0x84U, 0x15U, 0x2AU, 0x54U, 0xA8U,
0x4DU, 0x9AU, 0x29U, 0x52U, 0xA4U, 0x55U, 0xAAU, 0x49U, 0x92U, 0x39U, 0x72U, 0xE4U, 0xD5U, 0xB7U, 0x73U, 0xE6U,
0xD1U, 0xBFU, 0x63U, 0xC6U, 0x91U, 0x3FU, 0x7EU, 0xFCU, 0xE5U, 0xD7U, 0xB3U, 0x7BU, 0xF6U, 0xF1U, 0xFFU, 0xE3U,
0xDBU, 0xABU, 0x4BU, 0x96U, 0x31U, 0x62U, 0xC4U, 0x95U, 0x37U, 0x6EU, 0xDCU, 0xA5U, 0x57U, 0xAEU, 0x41U, 0x82U,
0x19U, 0x32U, 0x64U, 0xC8U, 0x8DU, 0x07U, 0x0EU, 0x1CU, 0x38U, 0x70U, 0xE0U, 0xDDU, 0xA7U, 0x53U, 0xA6U, 0x51U,
0xA2U, 0x59U, 0xB2U, 0x79U, 0xF2U, 0xF9U, 0xEFU, 0xC3U, 0x9BU, 0x2BU, 0x56U, 0xACU, 0x45U, 0x8AU, 0x09U, 0x12U,
0x24U, 0x48U, 0x90U, 0x3DU, 0x7AU, 0xF4U, 0xF5U, 0xF7U, 0xF3U, 0xFBU, 0xEBU, 0xCBU, 0x8BU, 0x0BU, 0x16U, 0x2CU,
0x58U, 0xB0U, 0x7DU, 0xFAU, 0xE9U, 0xCFU, 0x83U, 0x1BU, 0x36U, 0x6CU, 0xD8U, 0xADU, 0x47U, 0x8EU, 0x01U, 0x00U};
const unsigned char LOG_TABLE[] = {
0x00U, 0x00U, 0x01U, 0x19U, 0x02U, 0x32U, 0x1AU, 0xC6U, 0x03U, 0xDFU, 0x33U, 0xEEU, 0x1BU, 0x68U, 0xC7U, 0x4BU,
0x04U, 0x64U, 0xE0U, 0x0EU, 0x34U, 0x8DU, 0xEFU, 0x81U, 0x1CU, 0xC1U, 0x69U, 0xF8U, 0xC8U, 0x08U, 0x4CU, 0x71U,
0x05U, 0x8AU, 0x65U, 0x2FU, 0xE1U, 0x24U, 0x0FU, 0x21U, 0x35U, 0x93U, 0x8EU, 0xDAU, 0xF0U, 0x12U, 0x82U, 0x45U,
0x1DU, 0xB5U, 0xC2U, 0x7DU, 0x6AU, 0x27U, 0xF9U, 0xB9U, 0xC9U, 0x9AU, 0x09U, 0x78U, 0x4DU, 0xE4U, 0x72U, 0xA6U,
0x06U, 0xBFU, 0x8BU, 0x62U, 0x66U, 0xDDU, 0x30U, 0xFDU, 0xE2U, 0x98U, 0x25U, 0xB3U, 0x10U, 0x91U, 0x22U, 0x88U,
0x36U, 0xD0U, 0x94U, 0xCEU, 0x8FU, 0x96U, 0xDBU, 0xBDU, 0xF1U, 0xD2U, 0x13U, 0x5CU, 0x83U, 0x38U, 0x46U, 0x40U,
0x1EU, 0x42U, 0xB6U, 0xA3U, 0xC3U, 0x48U, 0x7EU, 0x6EU, 0x6BU, 0x3AU, 0x28U, 0x54U, 0xFAU, 0x85U, 0xBAU, 0x3DU,
0xCAU, 0x5EU, 0x9BU, 0x9FU, 0x0AU, 0x15U, 0x79U, 0x2BU, 0x4EU, 0xD4U, 0xE5U, 0xACU, 0x73U, 0xF3U, 0xA7U, 0x57U,
0x07U, 0x70U, 0xC0U, 0xF7U, 0x8CU, 0x80U, 0x63U, 0x0DU, 0x67U, 0x4AU, 0xDEU, 0xEDU, 0x31U, 0xC5U, 0xFEU, 0x18U,
0xE3U, 0xA5U, 0x99U, 0x77U, 0x26U, 0xB8U, 0xB4U, 0x7CU, 0x11U, 0x44U, 0x92U, 0xD9U, 0x23U, 0x20U, 0x89U, 0x2EU,
0x37U, 0x3FU, 0xD1U, 0x5BU, 0x95U, 0xBCU, 0xCFU, 0xCDU, 0x90U, 0x87U, 0x97U, 0xB2U, 0xDCU, 0xFCU, 0xBEU, 0x61U,
0xF2U, 0x56U, 0xD3U, 0xABU, 0x14U, 0x2AU, 0x5DU, 0x9EU, 0x84U, 0x3CU, 0x39U, 0x53U, 0x47U, 0x6DU, 0x41U, 0xA2U,
0x1FU, 0x2DU, 0x43U, 0xD8U, 0xB7U, 0x7BU, 0xA4U, 0x76U, 0xC4U, 0x17U, 0x49U, 0xECU, 0x7FU, 0x0CU, 0x6FU, 0xF6U,
0x6CU, 0xA1U, 0x3BU, 0x52U, 0x29U, 0x9DU, 0x55U, 0xAAU, 0xFBU, 0x60U, 0x86U, 0xB1U, 0xBBU, 0xCCU, 0x3EU, 0x5AU,
0xCBU, 0x59U, 0x5FU, 0xB0U, 0x9CU, 0xA9U, 0xA0U, 0x51U, 0x0BU, 0xF5U, 0x16U, 0xEBU, 0x7AU, 0x75U, 0x2CU, 0xD7U,
0x4FU, 0xAEU, 0xD5U, 0xE9U, 0xE6U, 0xE7U, 0xADU, 0xE8U, 0x74U, 0xD6U, 0xF4U, 0xEAU, 0xA8U, 0x50U, 0x58U, 0xAFU};
/* multiplication using logarithms */
static unsigned char gmult(unsigned char a, unsigned char b)
{
if (a == 0U || b == 0U)
return 0U;
unsigned int i = LOG_TABLE[a];
unsigned int j = LOG_TABLE[b];
return EXP_TABLE[i + j];
}
/* Simulate a LFSR with generator polynomial for n byte RS code.
* Pass in a pointer to the data array, and amount of data.
*
* The parity bytes are deposited into parity.
*/
void CRS129::encode(const unsigned char* msg, unsigned int nbytes, unsigned char* parity)
{
assert(msg != NULL);
assert(parity != NULL);
for (unsigned int i = 0U; i < NPAR + 1U; i++)
parity[i] = 0x00U;
for (unsigned int i = 0U; i < nbytes; i++) {
unsigned char dbyte = msg[i] ^ parity[NPAR - 1U];
for (int j = NPAR - 1; j > 0; j--)
parity[j] = parity[j - 1] ^ ::gmult(POLY[j], dbyte);
parity[0] = ::gmult(POLY[0], dbyte);
}
}
// Reed-Solomon (12,9) check
bool CRS129::check(const unsigned char* in)
{
assert(in != NULL);
unsigned char parity[4U];
encode(in, 9U, parity);
return in[9U] == parity[2U] && in[10U] == parity[1U] && in[11U] == parity[0U];
}

30
RS129.h Normal file
View file

@ -0,0 +1,30 @@
/*
* Copyright (C) 2015 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.
*/
#if !defined(RS129_H)
#define RS129_H
class CRS129
{
public:
static bool check(const unsigned char* in);
static void encode(const unsigned char* msg, unsigned int nbytes, unsigned char* parity);
};
#endif

110
Rewrite.cpp Normal file
View file

@ -0,0 +1,110 @@
/*
* Copyright (C) 2017 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 "Rewrite.h"
#include "DMRDefines.h"
#include "DMRFullLC.h"
#include <cstdio>
CRewrite::CRewrite() :
m_slot(0U),
m_tg(0U),
m_lc(NULL),
m_embeddedLC()
{
}
CRewrite::~CRewrite()
{
}
void CRewrite::setParams(unsigned int slot, unsigned int tg)
{
m_slot = slot;
m_tg = tg;
}
void CRewrite::process(CDMRData& data)
{
data.setSlotNo(m_slot);
FLCO flco = data.getFLCO();
unsigned int dstId = data.getDstId();
if (flco == FLCO_GROUP && dstId != m_tg) {
data.setDstId(m_tg);
unsigned char dataType = data.getDataType();
switch (dataType) {
case DT_VOICE_LC_HEADER:
case DT_TERMINATOR_WITH_LC:
processHeader(data, dataType);
break;
case DT_VOICE:
processVoice(data);
break;
case DT_VOICE_SYNC:
// Nothing to do
break;
default:
// Not sure what to do
break;
}
}
}
void CRewrite::processHeader(CDMRData& data, unsigned char dataType)
{
unsigned char buffer[DMR_FRAME_LENGTH_BYTES];
data.getData(buffer);
delete m_lc;
m_lc = NULL;
CDMRFullLC fullLC;
m_lc = fullLC.decode(buffer, dataType);
if (m_lc == NULL)
return;
m_lc->setDstId(m_tg);
m_embeddedLC.setLC(*m_lc);
fullLC.encode(*m_lc, buffer, dataType);
data.setData(buffer);
}
void CRewrite::processVoice(CDMRData& data)
{
if (m_lc == NULL) {
m_lc = new CDMRLC(FLCO_GROUP, data.getSrcId(), m_tg);
m_embeddedLC.setLC(*m_lc);
}
unsigned char buffer[DMR_FRAME_LENGTH_BYTES];
data.getData(buffer);
unsigned char n = data.getN();
m_embeddedLC.getData(buffer, n);
data.setData(buffer);
}

46
Rewrite.h Normal file
View file

@ -0,0 +1,46 @@
/*
* Copyright (C) 2017 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.
*/
#if !defined(REWRITE_H)
#define REWRITE_H
#include "DMREmbeddedData.h"
#include "DMRData.h"
#include "DMRLC.h"
class CRewrite {
public:
CRewrite();
~CRewrite();
void setParams(unsigned int slot, unsigned int tg);
void process(CDMRData& data);
private:
unsigned int m_slot;
unsigned int m_tg;
CDMRLC* m_lc;
CDMREmbeddedData m_embeddedLC;
void processHeader(CDMRData& data, unsigned char dataType);
void processVoice(CDMRData& data);
};
#endif

2
Version.h
View file

@ -19,6 +19,6 @@
#if !defined(VERSION_H) #if !defined(VERSION_H)
#define VERSION_H #define VERSION_H
const char* VERSION = "20170427"; const char* VERSION = "20170428";
#endif #endif