98 lines
2.8 KiB
C++
98 lines
2.8 KiB
C++
/* -*- c++ -*- */
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/*
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* gr-satnogs: SatNOGS GNU Radio Out-Of-Tree Module
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*
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* Copyright (C) 2018, Libre Space Foundation <http://librespacefoundation.org/>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gnuradio/io_signature.h>
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#include "ccsds_rs_decoder_mm_impl.h"
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#include <satnogs/log.h>
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extern "C" {
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#include <fec.h>
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}
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namespace gr {
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namespace satnogs {
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ccsds_rs_decoder_mm::sptr
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ccsds_rs_decoder_mm::make()
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{
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return gnuradio::get_initial_sptr
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(new ccsds_rs_decoder_mm_impl());
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}
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/*
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* The private constructor
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*/
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ccsds_rs_decoder_mm_impl::ccsds_rs_decoder_mm_impl()
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: gr::block("ccsds_rs_decoder_mm",
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gr::io_signature::make(0, 0, 0),
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gr::io_signature::make(0, 0, 0))
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{
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message_port_register_in(pmt::mp("in"));
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message_port_register_out(pmt::mp("pdu"));
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set_msg_handler (
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pmt::mp ("in"),
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boost::bind (&ccsds_rs_decoder_mm_impl::message_handler, this, _1));
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}
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void
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ccsds_rs_decoder_mm_impl::message_handler (pmt::pmt_t m)
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{
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uint8_t data[255];
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int erasures[255];
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const uint8_t *data_ref;
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size_t data_len;
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const int *erasures_ref;
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size_t erasures_len;
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pmt::pmt_t pmt_data = pmt::dict_ref(m, pmt::mp("pdu"), pmt::PMT_NIL);
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pmt::pmt_t pmt_erasures = pmt::dict_ref(m, pmt::mp("erasures"),
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pmt::PMT_NIL);
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if (pmt::equal (pmt::PMT_NIL, pmt_data)
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|| pmt::equal (pmt::PMT_NIL, pmt_erasures)) {
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LOG_ERROR("Invalid message format.");
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}
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data_ref = pmt::u8vector_elements(pmt_data, data_len);
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memcpy(data, data_ref, data_len);
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erasures_len = pmt::blob_length(pmt_erasures);
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erasures_ref = pmt::s32vector_elements(pmt_erasures, erasures_len);
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memcpy(erasures, erasures_ref, erasures_len * sizeof(int));
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decode_rs_ccsds(data, erasures, (int)erasures_len, (int)(255 - data_len));
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message_port_pub(pmt::mp("pdu"), pmt::make_blob(data, 223));
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}
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/*
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* Our virtual destructor.
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*/
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ccsds_rs_decoder_mm_impl::~ccsds_rs_decoder_mm_impl()
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{
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}
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} /* namespace satnogs */
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} /* namespace gr */
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