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158 lines
3.6 KiB
C

/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>
#include "liblte/phy/phy.h"
int cell_id = -1;
int nof_prb = 6;
int nof_ports = 1;
void usage(char *prog) {
printf("Usage: %s [cpv]\n", prog);
printf("\t-c cell id [Default %d]\n", cell_id);
printf("\t-p nof_ports [Default %d]\n", nof_ports);
printf("\t-n nof_prb [Default %d]\n", nof_prb);
printf("\t-v [set verbose to debug, default none]\n");
}
void parse_args(int argc, char **argv) {
int opt;
while ((opt = getopt(argc, argv, "cpnv")) != -1) {
switch(opt) {
case 'p':
nof_ports = atoi(argv[optind]);
break;
case 'n':
nof_prb = atoi(argv[optind]);
break;
case 'c':
cell_id = atoi(argv[optind]);
break;
case 'v':
verbose++;
break;
default:
usage(argv[0]);
exit(-1);
}
}
}
int main(int argc, char **argv) {
pcfich_t pcfich;
regs_t regs;
int i, j;
cf_t *ce[MAX_PORTS_CTRL];
int nof_re;
cf_t *slot_symbols[MAX_PORTS_CTRL];
int cfi, cfi_rx, nsf, distance;
int cid, max_cid;
parse_args(argc,argv);
nof_re = CPNORM_NSYMB * nof_prb * RE_X_RB;
/* init memory */
for (i=0;i<MAX_PORTS_CTRL;i++) {
ce[i] = malloc(sizeof(cf_t) * nof_re);
if (!ce[i]) {
perror("malloc");
exit(-1);
}
for (j=0;j<nof_re;j++) {
ce[i][j] = 1;
}
slot_symbols[i] = malloc(sizeof(cf_t) * nof_re);
if (!slot_symbols[i]) {
perror("malloc");
exit(-1);
}
}
if (cell_id == -1) {
cid = 0;
max_cid = 503;
} else {
cid = cell_id;
max_cid = cell_id;
}
while(cid <= max_cid) {
printf("Testing CellID=%d...\n", cid);
if (regs_init(&regs, cid, nof_prb, nof_ports, R_1, PHICH_NORM, CPNORM)) {
fprintf(stderr, "Error initiating regs\n");
exit(-1);
}
if (pcfich_init(&pcfich, &regs, cid, nof_prb, nof_ports, CPNORM)) {
fprintf(stderr, "Error creating PBCH object\n");
exit(-1);
}
for (nsf=0;nsf<10;nsf++) {
for (cfi=1;cfi<4;cfi++) {
pcfich_encode(&pcfich, cfi, slot_symbols, nsf);
/* combine outputs */
for (i=1;i<nof_ports;i++) {
for (j=0;j<nof_re;j++) {
slot_symbols[0][j] += slot_symbols[i][j];
}
}
if (pcfich_decode(&pcfich, slot_symbols[0], ce, nsf, &cfi_rx, &distance)<0) {
exit(-1);
}
INFO("cfi_tx: %d, cfi_rx: %d, ns: %d, distance: %d\n",
cfi, cfi_rx, nsf, distance);
if (distance) {
printf("Error\n");
exit(-1);
}
}
}
pcfich_free(&pcfich);
regs_free(&regs);
cid++;
}
for (i=0;i<MAX_PORTS_CTRL;i++) {
free(ce[i]);
free(slot_symbols[i]);
}
printf("OK\n");
exit(0);
}