mirror of https://github.com/PentHertz/srsLTE.git
207 lines
5.1 KiB
C
207 lines
5.1 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 <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include <unistd.h>
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#include <math.h>
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#include <time.h>
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#include <stdbool.h>
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#include "srslte/srslte.h"
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int nof_e_bits = -1;
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int rv_idx = -1;
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int cb_idx = -1;
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uint8_t systematic[6148], parity[2*6148];
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uint8_t systematic_bytes[6148/8+1], parity_bytes[2*6148/8+1];
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#define BUFFSZ 6176*3
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uint8_t bits[3*6144+12];
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uint8_t buff_b[BUFFSZ];
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float buff_f[BUFFSZ];
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float bits_f[3*6144+12];
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short bits2_s[3*6144+12];
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void usage(char *prog) {
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printf("Usage: %s -c cb_idx -e nof_e_bits [-i rv_idx]\n", prog);
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}
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void parse_args(int argc, char **argv) {
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int opt;
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while ((opt = getopt(argc, argv, "cei")) != -1) {
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switch (opt) {
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case 'c':
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cb_idx = atoi(argv[optind]);
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break;
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case 'e':
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nof_e_bits = atoi(argv[optind]);
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break;
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case 'i':
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rv_idx = atoi(argv[optind]);
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break;
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default:
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usage(argv[0]);
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exit(-1);
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}
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}
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if (nof_e_bits == -1) {
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usage(argv[0]);
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exit(-1);
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}
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}
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int main(int argc, char **argv) {
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int i;
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uint8_t *rm_bits, *rm_bits2, *rm_bits2_bytes;
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short *rm_bits_s;
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float *rm_bits_f;
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parse_args(argc, argv);
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srslte_rm_turbo_gentables();
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rm_bits_s = srslte_vec_malloc(sizeof(short) * nof_e_bits);
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if (!rm_bits_s) {
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perror("malloc");
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exit(-1);
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}
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rm_bits_f = srslte_vec_malloc(sizeof(float) * nof_e_bits);
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if (!rm_bits_f) {
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perror("malloc");
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exit(-1);
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}
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rm_bits = srslte_vec_malloc(sizeof(uint8_t) * nof_e_bits);
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if (!rm_bits) {
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perror("malloc");
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exit(-1);
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}
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rm_bits2 = malloc(sizeof(uint8_t) * nof_e_bits);
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if (!rm_bits2) {
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perror("malloc");
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exit(-1);
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}
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rm_bits2_bytes = malloc(sizeof(uint8_t) * nof_e_bits/8 + 1);
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if (!rm_bits2_bytes) {
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perror("malloc");
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exit(-1);
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}
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uint32_t st=0, end=188;
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if (cb_idx != -1) {
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st=cb_idx;
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end=cb_idx+1;
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}
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uint32_t rv_st=0, rv_end=4;
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if (rv_idx != -1) {
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rv_st=rv_idx;
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rv_end=rv_idx+1;
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}
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for (cb_idx=st;cb_idx<end;cb_idx++) {
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for (rv_idx=rv_st;rv_idx<rv_end;rv_idx++) {
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uint32_t long_cb_enc = 3*srslte_cbsegm_cbsize(cb_idx)+12;
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printf("checking cb_idx=%3d rv_idx=%d...", cb_idx, rv_idx);
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for (i = 0; i < long_cb_enc; i++) {
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bits[i] = rand() % 2;
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}
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bzero(buff_b, BUFFSZ * sizeof(uint8_t));
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srslte_rm_turbo_tx(buff_b, BUFFSZ, bits, long_cb_enc, rm_bits, nof_e_bits, 0);
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if (rv_idx > 0) {
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srslte_rm_turbo_tx(buff_b, BUFFSZ, bits, long_cb_enc, rm_bits, nof_e_bits, rv_idx);
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}
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for (int i=0;i<long_cb_enc/3;i++) {
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systematic[i] = bits[3*i];
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parity[i] = bits[3*i+1];
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parity[i+long_cb_enc/3] = bits[3*i+2];
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}
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srslte_bit_pack_vector(systematic, systematic_bytes, long_cb_enc/3);
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srslte_bit_pack_vector(parity, parity_bytes, 2*long_cb_enc/3);
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bzero(buff_b, BUFFSZ * sizeof(uint8_t));
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bzero(rm_bits2_bytes, nof_e_bits/8);
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srslte_rm_turbo_tx_lut(buff_b, systematic_bytes, parity_bytes, rm_bits2_bytes, cb_idx, nof_e_bits, 0, 0);
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if (rv_idx > 0) {
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bzero(rm_bits2_bytes, nof_e_bits/8);
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srslte_rm_turbo_tx_lut(buff_b, systematic_bytes, parity_bytes, rm_bits2_bytes, cb_idx, nof_e_bits, 0, rv_idx);
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}
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srslte_bit_unpack_vector(rm_bits2_bytes, rm_bits2, nof_e_bits);
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for (int i=0;i<nof_e_bits;i++) {
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if (rm_bits2[i] != rm_bits[i]) {
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printf("Error in TX bit %d\n", i);
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exit(-1);
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}
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}
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printf("OK TX...");
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for (int i=0;i<nof_e_bits;i++) {
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rm_bits_f[i] = rand()%10-5;
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rm_bits_s[i] = (short) rm_bits_f[i];
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}
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bzero(buff_f, BUFFSZ*sizeof(float));
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srslte_rm_turbo_rx(buff_f, BUFFSZ, rm_bits_f, nof_e_bits, bits_f, long_cb_enc, rv_idx, 0);
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bzero(bits2_s, long_cb_enc*sizeof(short));
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srslte_rm_turbo_rx_lut(rm_bits_s, bits2_s, nof_e_bits, cb_idx, rv_idx);
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for (int i=0;i<long_cb_enc;i++) {
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if (bits_f[i] != bits2_s[i]) {
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printf("error RX in bit %d %f!=%d\n", i, bits_f[i], bits2_s[i]);
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exit(-1);
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}
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}
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printf("OK RX\n");
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}
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}
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free(rm_bits);
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free(rm_bits2);
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free(rm_bits2_bytes);
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exit(0);
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}
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