87 lines
2.0 KiB
C
87 lines
2.0 KiB
C
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2014 The libLTE Developers. See the
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* COPYRIGHT file at the top-level directory of this distribution.
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*
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* \section LICENSE
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*
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* This file is part of the libLTE library.
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*
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* libLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* libLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* A copy of the GNU Lesser General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#include <stdlib.h>
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#include <strings.h>
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#include "lte/modem/demod_hard.h"
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#include "hard_demod_lte.h"
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void demod_hard_init(demod_hard_t* q) {
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bzero((void*) q, sizeof(demod_hard_t));
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}
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void demod_hard_table_set(demod_hard_t* q, enum modem_std table) {
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q->table = table;
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}
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int demod_hard_demodulate(demod_hard_t* q, cf_t* symbols, char *bits, int nsymbols) {
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int nbits=-1;
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switch(q->table) {
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case LTE_BPSK:
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hard_bpsk_demod(symbols,bits,nsymbols);
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nbits=nsymbols;
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break;
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case LTE_QPSK:
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hard_qpsk_demod(symbols,bits,nsymbols);
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nbits=nsymbols*2;
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break;
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case LTE_QAM16:
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hard_qam16_demod(symbols,bits,nsymbols);
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nbits=nsymbols*4;
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break;
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case LTE_QAM64:
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hard_qam64_demod(symbols,bits,nsymbols);
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nbits=nsymbols*6;
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break;
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}
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return nbits;
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}
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int demod_hard_initialize(demod_hard_hl* hl) {
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demod_hard_init(&hl->obj);
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demod_hard_table_set(&hl->obj,hl->init.std);
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return 0;
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}
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int demod_hard_work(demod_hard_hl* hl) {
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int ret = demod_hard_demodulate(&hl->obj,hl->input,hl->output,hl->in_len);
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hl->out_len = ret;
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return 0;
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}
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int demod_hard_stop(demod_hard_hl* hl) {
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return 0;
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}
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