2014-03-03 11:09:26 -08:00
|
|
|
/**
|
2014-01-28 03:41:17 -08:00
|
|
|
*
|
2014-03-03 11:09:26 -08:00
|
|
|
* \section COPYRIGHT
|
2014-01-28 03:41:17 -08:00
|
|
|
*
|
2015-11-13 04:22:33 -08:00
|
|
|
* Copyright 2013-2015 Software Radio Systems Limited
|
2014-03-03 11:09:26 -08:00
|
|
|
*
|
|
|
|
* \section LICENSE
|
|
|
|
*
|
2015-03-20 05:01:08 -07:00
|
|
|
* This file is part of the srsLTE library.
|
2014-03-03 11:09:26 -08:00
|
|
|
*
|
2015-03-20 05:01:08 -07:00
|
|
|
* srsLTE is free software: you can redistribute it and/or modify
|
2015-05-08 08:05:40 -07:00
|
|
|
* it under the terms of the GNU Affero General Public License as
|
2014-03-03 11:09:26 -08:00
|
|
|
* published by the Free Software Foundation, either version 3 of
|
|
|
|
* the License, or (at your option) any later version.
|
|
|
|
*
|
2015-03-20 05:01:08 -07:00
|
|
|
* srsLTE is distributed in the hope that it will be useful,
|
2014-01-28 03:41:17 -08:00
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
2015-05-08 08:05:40 -07:00
|
|
|
* GNU Affero General Public License for more details.
|
2014-01-28 03:41:17 -08:00
|
|
|
*
|
2015-05-08 08:05:40 -07:00
|
|
|
* A copy of the GNU Affero General Public License can be found in
|
2014-03-03 11:09:26 -08:00
|
|
|
* the LICENSE file in the top-level directory of this distribution
|
|
|
|
* and at http://www.gnu.org/licenses/.
|
|
|
|
*
|
2014-01-28 03:41:17 -08:00
|
|
|
*/
|
|
|
|
|
2014-03-03 11:09:26 -08:00
|
|
|
|
2014-01-28 03:41:17 -08:00
|
|
|
#include <stdlib.h>
|
|
|
|
#include <strings.h>
|
|
|
|
|
2015-03-18 05:31:13 -07:00
|
|
|
#include "srslte/modem/demod_hard.h"
|
2014-01-28 03:41:17 -08:00
|
|
|
#include "hard_demod_lte.h"
|
|
|
|
|
|
|
|
|
2015-03-18 11:14:24 -07:00
|
|
|
void srslte_demod_hard_init(srslte_demod_hard_t* q) {
|
|
|
|
bzero((void*) q, sizeof(srslte_demod_hard_t));
|
2014-01-28 03:41:17 -08:00
|
|
|
}
|
|
|
|
|
2015-03-18 11:14:24 -07:00
|
|
|
void srslte_demod_hard_table_set(srslte_demod_hard_t* q, srslte_mod_t mod) {
|
2014-07-10 05:43:18 -07:00
|
|
|
q->mod = mod;
|
2014-01-28 03:41:17 -08:00
|
|
|
}
|
|
|
|
|
2015-03-18 11:14:24 -07:00
|
|
|
int srslte_demod_hard_demodulate(srslte_demod_hard_t* q, cf_t* symbols, uint8_t *bits, uint32_t nsymbols) {
|
2014-01-28 03:41:17 -08:00
|
|
|
|
2014-06-17 02:11:41 -07:00
|
|
|
int nbits=-1;
|
2014-07-10 05:43:18 -07:00
|
|
|
switch(q->mod) {
|
2015-03-18 11:14:24 -07:00
|
|
|
case SRSLTE_MOD_BPSK:
|
2014-06-17 02:11:41 -07:00
|
|
|
hard_bpsk_demod(symbols,bits,nsymbols);
|
|
|
|
nbits=nsymbols;
|
|
|
|
break;
|
2015-03-18 11:14:24 -07:00
|
|
|
case SRSLTE_MOD_QPSK:
|
2014-06-17 02:11:41 -07:00
|
|
|
hard_qpsk_demod(symbols,bits,nsymbols);
|
|
|
|
nbits=nsymbols*2;
|
|
|
|
break;
|
2015-03-18 11:14:24 -07:00
|
|
|
case SRSLTE_MOD_16QAM:
|
2014-06-17 02:11:41 -07:00
|
|
|
hard_qam16_demod(symbols,bits,nsymbols);
|
|
|
|
nbits=nsymbols*4;
|
|
|
|
break;
|
2015-03-18 11:14:24 -07:00
|
|
|
case SRSLTE_MOD_64QAM:
|
2014-06-17 02:11:41 -07:00
|
|
|
hard_qam64_demod(symbols,bits,nsymbols);
|
|
|
|
nbits=nsymbols*6;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return nbits;
|
2014-01-28 03:41:17 -08:00
|
|
|
}
|
|
|
|
|
|
|
|
|