You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

60 lines
1.9 KiB
C

/**
* Copyright 2013-2021 Software Radio Systems Limited
*
* This file is part of srsRAN.
*
* srsRAN is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsRAN 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 Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
/******************************************************************************
* File: binsource.h
*
* Description: Pseudo-random binary source.
*
* Reference:
*****************************************************************************/
#ifndef SRSRAN_BINSOURCE_H
#define SRSRAN_BINSOURCE_H
#include "srsran/config.h"
#include <stdint.h>
/* Low-level API */
typedef struct SRSRAN_API {
uint32_t seed;
uint32_t* seq_buff;
int seq_buff_nwords;
int seq_cache_nbits;
int seq_cache_rp;
} srsran_binsource_t;
SRSRAN_API void srsran_binsource_init(srsran_binsource_t* q);
SRSRAN_API void srsran_binsource_free(srsran_binsource_t* q);
SRSRAN_API void srsran_binsource_seed_set(srsran_binsource_t* q, uint32_t seed);
SRSRAN_API void srsran_binsource_seed_time(srsran_binsource_t* q);
SRSRAN_API int srsran_binsource_cache_gen(srsran_binsource_t* q, int nbits);
SRSRAN_API void srsran_binsource_cache_cpy(srsran_binsource_t* q, uint8_t* bits, int nbits);
SRSRAN_API int srsran_binsource_generate(srsran_binsource_t* q, uint8_t* bits, int nbits);
#endif // SRSRAN_BINSOURCE_H