2014-03-14 18:04:21 -07:00
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/**
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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 <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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2014-10-19 03:47:48 -07:00
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#include <time.h>
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2014-03-14 18:04:21 -07:00
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2015-03-18 05:31:13 -07:00
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#include "srslte/srslte.h"
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2014-03-14 18:04:21 -07:00
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2015-03-18 05:41:50 -07:00
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srslte_cell_t cell = {
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2014-06-29 15:44:39 -07:00
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6, // nof_prb
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1, // nof_ports
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1, // cell_id
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2014-10-18 09:26:21 -07:00
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CPNORM, // cyclic prefix
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R_1, // PHICH resources
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PHICH_NORM // PHICH length
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2014-06-29 15:44:39 -07:00
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};
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2014-03-14 18:04:21 -07:00
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void usage(char *prog) {
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2014-06-17 02:11:41 -07:00
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printf("Usage: %s [cpv]\n", prog);
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2014-06-29 15:44:39 -07:00
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printf("\t-c cell id [Default %d]\n", cell.id);
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printf("\t-p cell.nof_ports [Default %d]\n", cell.nof_ports);
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printf("\t-n cell.nof_prb [Default %d]\n", cell.nof_prb);
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2014-06-17 02:11:41 -07:00
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printf("\t-v [set verbose to debug, default none]\n");
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2014-03-14 18:04:21 -07:00
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}
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void parse_args(int argc, char **argv) {
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2014-06-17 02:11:41 -07:00
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int opt;
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while ((opt = getopt(argc, argv, "cpnv")) != -1) {
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switch(opt) {
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case 'p':
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2014-06-29 15:44:39 -07:00
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cell.nof_ports = atoi(argv[optind]);
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2014-06-17 02:11:41 -07:00
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break;
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case 'n':
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2014-06-29 15:44:39 -07:00
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cell.nof_prb = atoi(argv[optind]);
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2014-06-17 02:11:41 -07:00
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break;
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case 'c':
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2014-06-29 15:44:39 -07:00
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cell.id = atoi(argv[optind]);
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break;
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case 'v':
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verbose++;
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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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2014-03-14 18:04:21 -07:00
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}
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int main(int argc, char **argv) {
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pbch_t pbch;
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2014-10-18 09:26:21 -07:00
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uint8_t bch_payload_tx[BCH_PAYLOAD_LEN], bch_payload_rx[BCH_PAYLOAD_LEN];
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int i, j;
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2015-03-18 05:41:50 -07:00
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cf_t *ce[SRSLTE_MAX_PORTS];
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2014-06-17 02:11:41 -07:00
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int nof_re;
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2015-03-18 05:41:50 -07:00
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cf_t *slot1_symbols[SRSLTE_MAX_PORTS];
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uint32_t nof_rx_ports;
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2014-06-17 02:11:41 -07:00
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parse_args(argc,argv);
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2014-08-01 14:26:28 -07:00
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nof_re = SLOT_LEN_RE(cell.nof_prb, CPNORM);
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2014-06-17 02:11:41 -07:00
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/* init memory */
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2014-06-29 15:44:39 -07:00
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for (i=0;i<cell.nof_ports;i++) {
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ce[i] = malloc(sizeof(cf_t) * nof_re);
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if (!ce[i]) {
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perror("malloc");
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exit(-1);
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}
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for (j=0;j<nof_re;j++) {
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ce[i][j] = 1;
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}
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2014-08-01 14:26:28 -07:00
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slot1_symbols[i] = malloc(sizeof(cf_t) * nof_re);
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if (!slot1_symbols[i]) {
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2014-06-17 02:11:41 -07:00
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perror("malloc");
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exit(-1);
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}
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}
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2014-06-29 15:44:39 -07:00
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if (pbch_init(&pbch, cell)) {
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2014-06-17 02:11:41 -07:00
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fprintf(stderr, "Error creating PBCH object\n");
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exit(-1);
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}
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2014-10-19 03:47:48 -07:00
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srand(time(NULL));
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2014-10-18 09:26:21 -07:00
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for (i=0;i<BCH_PAYLOAD_LEN;i++) {
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bch_payload_tx[i] = rand()%2;
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}
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2014-06-17 02:11:41 -07:00
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2014-10-18 09:26:21 -07:00
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pbch_encode(&pbch, bch_payload_tx, slot1_symbols);
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2014-06-17 02:11:41 -07:00
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/* combine outputs */
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2014-06-29 15:44:39 -07:00
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for (i=1;i<cell.nof_ports;i++) {
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2014-06-17 02:11:41 -07:00
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for (j=0;j<nof_re;j++) {
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2014-08-01 14:26:28 -07:00
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slot1_symbols[0][j] += slot1_symbols[i][j];
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2014-06-17 02:11:41 -07:00
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}
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}
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2014-10-18 09:26:21 -07:00
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2014-06-17 02:11:41 -07:00
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pbch_decode_reset(&pbch);
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2014-11-13 07:14:22 -08:00
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if (1 != pbch_decode(&pbch, slot1_symbols[0], ce, 0, bch_payload_rx, &nof_rx_ports, NULL)) {
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2014-06-17 02:11:41 -07:00
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printf("Error decoding\n");
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exit(-1);
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}
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pbch_free(&pbch);
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2014-06-29 15:44:39 -07:00
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for (i=0;i<cell.nof_ports;i++) {
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2014-06-17 02:11:41 -07:00
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free(ce[i]);
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2014-08-01 14:26:28 -07:00
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free(slot1_symbols[i]);
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2014-06-17 02:11:41 -07:00
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}
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2014-10-19 03:47:48 -07:00
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printf("Tx ports: %d - Rx ports: %d\n", cell.nof_ports, nof_rx_ports);
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printf("Tx payload: ");
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vec_fprint_hex(stdout, bch_payload_tx, BCH_PAYLOAD_LEN);
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printf("Rx payload: ");
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vec_fprint_hex(stdout, bch_payload_rx, BCH_PAYLOAD_LEN);
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2014-06-17 02:11:41 -07:00
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2014-10-18 09:26:21 -07:00
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if (nof_rx_ports == cell.nof_ports && !memcmp(bch_payload_rx, bch_payload_tx, sizeof(uint8_t) * BCH_PAYLOAD_LEN)) {
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2014-06-17 02:11:41 -07:00
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printf("OK\n");
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exit(0);
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} else {
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2014-10-18 09:26:21 -07:00
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printf("Error\n");
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2014-06-17 02:11:41 -07:00
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exit(-1);
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}
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2014-03-14 18:04:21 -07:00
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}
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