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/*
Copyright (C) 2005, 2006, 2007, 2008, 2009 Her Majesty the Queen in Right
of Canada (Communications Research Center Canada)
*/
/*
This file is part of CRC-DabMux.
CRC-DabMux 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 3 of the
License, or (at your option) any later version.
CRC-DabMux 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 CRC-DabMux. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _PRBS
#define _PRBS
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef __cplusplus
extern "C" { // }
#endif
typedef struct {
// table of matrix products used to update a 32-bit PRBS generator
unsigned long prbs_table [4] [256];
// table of weights for 8-bit bytes
unsigned char weight[256];
// PRBS polynomial generator
unsigned long polynomial;
// PRBS generator polarity mask
unsigned char polarity_mask;
// PRBS accumulator
unsigned long accum;
} prbs_data;
unsigned long parity_check(unsigned long prbs_accum);
void gen_prbs_table(void* args);
unsigned long update_prbs(void* args);
void gen_weight_table(void* args);
unsigned long error_count(void* args, unsigned char *rx_data,
int rx_data_length);
void gen_sequence(void* args, unsigned char *tx_data, int tx_data_length,
unsigned long polynomial);
#ifdef __cplusplus
}
#endif
#endif // _PRBS
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