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101 lines
2.3 KiB
C
101 lines
2.3 KiB
C
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2015 The srsLTE 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 srsLTE library.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero 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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* srsLTE 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 Affero General Public License for more details.
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*
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* A copy of the GNU Affero 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 <string.h>
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#include "srslte/srslte.h"
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#include "srslte/mex/mexutils.h"
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/** MEX function to be called from MATLAB to test the channel estimator
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*/
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#define INPUT prhs[0]
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#define TRBLKLEN prhs[1]
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#define RV prhs[2]
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#define NOF_INPUTS 3
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void help()
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{
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mexErrMsgTxt
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("[out] = srslte_rm_turbo_rx(in, trblkin, rv)\n\n");
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}
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/* the gateway function */
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void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
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{
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float *input;
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float *output;
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uint32_t in_len, trblklen, cblen, rvidx;
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float *w_buff_f;
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if (nrhs != NOF_INPUTS) {
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help();
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return;
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}
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// Read input symbols
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in_len = mexutils_read_f(INPUT, &input);
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if (in_len < 0) {
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mexErrMsgTxt("Error reading input bits\n");
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return;
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}
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trblklen = (uint32_t) mxGetScalar(TRBLKLEN);
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rvidx = (uint32_t) mxGetScalar(RV);
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srslte_cbsegm_t cbsegm;
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srslte_cbsegm(&cbsegm, trblklen);
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cblen = 3*cbsegm.K1+12;
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w_buff_f = calloc(1,sizeof(float) * cblen * 10);
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if (!w_buff_f) {
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perror("malloc");
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exit(-1);
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}
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// allocate memory for output bits
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output = srslte_vec_malloc(cblen * sizeof(float));
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srslte_rm_turbo_rx(w_buff_f, cblen * 10, input, in_len, output, cblen,
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rvidx,cbsegm.F);
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if (nlhs >= 1) {
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mexutils_write_f(output, &plhs[0], cblen, 1);
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}
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if (nlhs >= 2) {
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mexutils_write_f(input, &plhs[1], in_len, 1);
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}
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free(input);
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free(output);
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free(w_buff_f);
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return;
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}
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