ieee802_15_4_encoder.h

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/* -*- c++ -*- */
/*
 *  gr-satnogs: SatNOGS GNU Radio Out-Of-Tree Module
 *
 *  Copyright (C) 2020-2023, Libre Space Foundation <http://libre.space>
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *  SPDX-License-Identifier: GNU General Public License v3.0 or later
 */
 
 
#ifndef INCLUDED_SATNOGS_IEEE802_15_4_ENCODER_H
#define INCLUDED_SATNOGS_IEEE802_15_4_ENCODER_H
 
#include <gnuradio/satnogs/api.h>
#include <gnuradio/satnogs/encoder.h>
#include <gnuradio/satnogs/whitening.h>
#include <cstddef>
#include <cstdint>
 
namespace gr {
namespace satnogs {
 
/*!
 * \brief An IEEE802.15.4 frame encoder with some extended parameterization
 */
class SATNOGS_API ieee802_15_4_encoder : public encoder
{
public:
    using sptr = std::shared_ptr<ieee802_15_4_encoder>;
    static sptr make(uint8_t preamble,
                     size_t preamble_len,
                     size_t length_field_bytes,
                     const std::vector<uint8_t>& sync_word);
 
    ieee802_15_4_encoder(uint8_t preamble,
                         size_t preamble_len,
                         size_t length_field_bytes,
                         const std::vector<uint8_t>& sync_word);
 
 
    static sptr make(uint8_t preamble,
                     size_t preamble_len,
                     const std::vector<uint8_t>& sync_word,
                     size_t frame_len);
 
    ieee802_15_4_encoder(uint8_t preamble,
                         size_t preamble_len,
                         const std::vector<uint8_t>& sync_word,
                         size_t frame_len);
    ~ieee802_15_4_encoder();
 
    pmt::pmt_t encode(pmt::pmt_t msg);
 
private:
    const size_t d_max_frame_len;
    const size_t d_preamle_len;
    const bool d_var_len = 0;
    uint8_t* d_buffer;
    uint8_t* d_payload;
    uint8_t* d_buffer_frame_len;
    uint8_t d_length_field_bytes;
};
 
} // namespace satnogs
} // namespace gr
 
#endif /* INCLUDED_SATNOGS_IEEE802_15_4_ENCODER_H */