mirror of https://github.com/pvnis/srsRAN_4G.git
Fixed BUG in ue_mib.c not checking if enough buffer. Fixed ud_dl rv_idx. Removed iodev.c
ismagom
10 years ago
parent
8531fb1a0c
commit
5193112041
@ -1,207 +0,0 @@
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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 <unistd.h>
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#include "iodev.h"
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#include "liblte/phy/io/filesource.h"
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#include "liblte/phy/ue/ue_sync.h"
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#include "liblte/phy/utils/debug.h"
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#include "liblte/phy/utils/vector.h"
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#ifndef DISABLE_UHD
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#include "liblte/cuhd/cuhd.h"
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#endif
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#include "cell_search_utils.h"
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int cuhd_recv_wrapper(void *h, void *data, uint32_t nsamples) {
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DEBUG(" ---- Receive %d samples ---- \n", nsamples);
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return cuhd_recv(h, data, nsamples, 1);
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}
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/* Setup USRP or input file */
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int iodev_init(iodev_t *q, iodev_cfg_t *config, lte_cell_t *cell) {
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if (config->input_file_name) {
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cell->phich_resources = R_1;
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cell->phich_length = PHICH_NORM;
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cell->id = config->cell_id_file;
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cell->cp = CPNORM;
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cell->nof_ports = config->nof_ports_file;
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cell->nof_prb = config->nof_prb_file;
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if (filesource_init(&q->fsrc, config->input_file_name, COMPLEX_FLOAT_BIN)) {
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return LIBLTE_ERROR;
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}
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q->mode = FILESOURCE;
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int symbol_sz = lte_symbol_sz(cell->nof_prb);
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if (symbol_sz > 0) {
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q->sf_len = SF_LEN(symbol_sz);
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} else {
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fprintf(stderr, "Invalid number of PRB %d\n", cell->nof_prb);
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return LIBLTE_ERROR;
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}
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q->input_buffer_file = vec_malloc(q->sf_len * sizeof(cf_t));
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if (!q->input_buffer_file) {
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perror("malloc");
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return LIBLTE_ERROR;
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}
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q->sf_idx = 9;
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} else {
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#ifndef DISABLE_UHD
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printf("Opening UHD device...\n");
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if (cuhd_open(config->uhd_args, &q->uhd)) {
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fprintf(stderr, "Error opening uhd\n");
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return LIBLTE_ERROR;
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}
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/* Set receiver gain */
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cuhd_set_rx_gain(q->uhd, config->uhd_gain);
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/* set receiver frequency */
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cuhd_set_rx_freq(q->uhd, (double) config->uhd_freq);
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cuhd_rx_wait_lo_locked(q->uhd);
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DEBUG("Set uhd_freq to %.3f MHz\n", (double ) config->uhd_freq);
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cell_detect_cfg_t detect_config;
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bzero(&detect_config, sizeof(cell_detect_cfg_t));
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if (detect_and_decode_cell(&detect_config, q->uhd, config->force_N_id_2, cell)) {
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fprintf(stderr, "Cell not found\n");
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return LIBLTE_ERROR;
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}
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cuhd_start_rx_stream(q->uhd);
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if (ue_sync_init(&q->sframe, *cell, cuhd_recv_wrapper, q->uhd)) {
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fprintf(stderr, "Error initiating ue_sync\n");
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return LIBLTE_ERROR;
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}
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// Here, the subframe length and input buffer is managed by ue_sync
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q->mode = UHD;
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#else
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printf("Error UHD not available. Select an input file\n");
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return LIBLTE_ERROR;
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#endif
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}
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memcpy(&q->config, config, sizeof(iodev_cfg_t));
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return LIBLTE_SUCCESS;
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}
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void iodev_free(iodev_t *q) {
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if (q->mode == FILESOURCE) {
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filesource_free(&q->fsrc);
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} else {
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#ifndef DISABLE_UHD
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cuhd_close(q->uhd);
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#endif
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}
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}
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/* Receive samples from the USRP or read from file */
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int iodev_receive(iodev_t *q, cf_t **buffer) {
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int n;
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if (q->mode == FILESOURCE) {
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INFO(" ----- READING %d SAMPLES ---- \n", q->sf_len);
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n = filesource_read(&q->fsrc, q->input_buffer_file, q->sf_len);
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*buffer = q->input_buffer_file;
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if (n == -1) {
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fprintf(stderr, "Error reading file\n");
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/* wrap file if arrive to end */
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} else if (n < q->sf_len) {
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DEBUG("Read %d from file. Seeking to 0\n",n);
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filesource_seek(&q->fsrc, 0);
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n = filesource_read(&q->fsrc, q->input_buffer_file, q->sf_len);
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if (n == -1) {
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fprintf(stderr, "Error reading file\n");
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/* wrap file if arrive to end */
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} else {
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n = 1;
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}
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} else {
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n = 1;
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}
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q->sf_idx++;
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if (q->sf_idx == 10) {
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q->sf_idx = 0;
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}
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usleep(5000);
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} else {
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/* Use ue_sync_work which returns a synchronized buffer of subframe samples */
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#ifndef DISABLE_UHD
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n = ue_sync_get_buffer(&q->sframe, buffer);
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if (n < 0) {
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fprintf(stderr, "Error calling ue_sync_work()\n");
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}
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#endif
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}
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return n;
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}
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void* iodev_get_cuhd(iodev_t *q) {
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if (q->mode == UHD) {
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return q->uhd;
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} else {
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return NULL;
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}
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}
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bool iodev_isfile(iodev_t *q) {
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return q->mode == FILESOURCE;
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}
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bool iodev_isUSRP(iodev_t *q) {
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return q->mode == UHD;
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}
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uint32_t iodev_get_sfidx(iodev_t *q) {
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if (iodev_isfile(q)) {
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return q->sf_idx;
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} else {
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return ue_sync_get_sfidx(&q->sframe);
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}
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}
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@ -1,99 +0,0 @@
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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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#ifndef IODEF_H
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#define IODEF_H
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#include "liblte/config.h"
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#include "liblte/phy/ue/ue_sync.h"
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#include "liblte/phy/io/filesource.h"
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#ifndef DISABLE_UHD
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#include "liblte/cuhd/cuhd.h"
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#endif
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/*********
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*
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* This component is a wrapper to the cuhd or filesource modules. It uses
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* sync_frame_t to read aligned subframes from the USRP or filesource to read
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* subframes from a file.
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*
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* When created, it starts receiving/reading at 1.92 MHz. The sampling frequency
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* can then be changed using iodev_set_srate()
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*/
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typedef enum LIBLTE_API {FILESOURCE, UHD} iodev_mode_t;
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typedef _Complex float cf_t;
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typedef struct LIBLTE_API {
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char *input_file_name;
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uint32_t cell_id_file;
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uint32_t nof_prb_file;
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uint32_t nof_ports_file;
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int force_N_id_2;
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float uhd_freq;
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float uhd_gain;
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char *uhd_args;
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float find_threshold;
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} iodev_cfg_t;
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typedef struct LIBLTE_API {
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#ifndef DISABLE_UHD
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void *uhd;
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ue_sync_t sframe;
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#endif
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uint32_t sf_len;
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uint32_t sf_idx;
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cf_t *input_buffer_file; // for UHD mode, the input buffer is managed by sync_frame_t
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filesource_t fsrc;
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iodev_cfg_t config;
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iodev_mode_t mode;
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} iodev_t;
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LIBLTE_API int iodev_init(iodev_t *q,
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iodev_cfg_t *config,
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lte_cell_t *cell);
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LIBLTE_API void iodev_free(iodev_t *q);
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LIBLTE_API int iodev_receive(iodev_t *q,
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cf_t **buffer);
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LIBLTE_API void* iodev_get_cuhd(iodev_t *q);
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LIBLTE_API uint32_t iodev_get_sfidx(iodev_t *q);
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LIBLTE_API bool iodev_isfile(iodev_t *q);
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LIBLTE_API bool iodev_isUSRP(iodev_t *q);
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#endif
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Reference in New Issue