srsLTE/srslte/include/srslte/modem/demod_hard.h

/**
 *
 * \section COPYRIGHT
 *
 * Copyright 2013-2014 The srsLTE Developers. See the
 * COPYRIGHT file at the top-level directory of this distribution.
 *
 * \section LICENSE
 *
 * This file is part of the srsLTE library.
 *
 * srsLTE is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * srsLTE 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 Lesser General Public License for more details.
 *
 * A copy of the GNU Lesser 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/.
 *
 */


#ifndef DEMOD_HARD_
#define DEMOD_HARD_

#include <complex.h>
#include <stdint.h>

#include "srslte/config.h"
#include "modem_table.h"

typedef struct SRSLTE_API {
  srslte_mod_t mod; /* In this implementation, mapping table is hard-coded */
}srslte_demod_hard_t;


SRSLTE_API void srslte_demod_hard_init(srslte_demod_hard_t* q);

SRSLTE_API void srslte_demod_hard_table_set(srslte_demod_hard_t* q, 
                                            srslte_mod_t mod);

SRSLTE_API int srslte_demod_hard_demodulate(srslte_demod_hard_t* q, 
                                            cf_t* symbols, 
                                            uint8_t *bits, 
                                            uint32_t nsymbols);

/* High-level API */
typedef struct SRSLTE_API {
  srslte_demod_hard_t obj;
  struct srslte_demod_hard_init {
    srslte_mod_t std;    // Symbol mapping standard (see modem_table.h)
  } init;

  cf_t* input;
  int in_len;

  uint8_t* output;
  int out_len;
}srslte_demod_hard_hl;

SRSLTE_API int srslte_demod_hard_initialize(srslte_demod_hard_hl* hl);
SRSLTE_API int srslte_demod_hard_work(srslte_demod_hard_hl* hl);
SRSLTE_API int srslte_demod_hard_stop(srslte_demod_hard_hl* hl);


#endif // DEMOD_HARD_