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90 lines
2.3 KiB
C
90 lines
2.3 KiB
C
10 years ago
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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/phch/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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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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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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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 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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