613 lines
13 KiB
C++
613 lines
13 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) 2019, Libre Space Foundation <http://libre.space>
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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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#ifndef INCLUDED_SATNOGS_AMSAT_DUV_DECODER_H
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#define INCLUDED_SATNOGS_AMSAT_DUV_DECODER_H
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#include <satnogs/api.h>
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#include <satnogs/decoder.h>
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#include <string>
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#include <deque>
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namespace gr {
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namespace satnogs {
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/*!
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* \brief AMSAT 8b10b + CCSDS RS DUV decoder
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*
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*/
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class SATNOGS_API amsat_duv_decoder : public decoder {
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public:
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static const size_t
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amsat_fox_duv_frame_size;
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static const uint8_t
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amsat_fox_spacecraft_id[];
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static decoder::decoder_sptr
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make(const std::string &control_symbol, size_t max_frame_len = 96);
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amsat_duv_decoder(const std::string &control_symbol, size_t max_frame_len);
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~amsat_duv_decoder();
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decoder_status_t
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decode(const void *in, int len);
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void
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reset();
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private:
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typedef enum {
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SEARCH_SYNC, DECODING
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} d_state_t;
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size_t d_erasure_cnt;
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uint16_t d_control_symbol_pos;
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uint16_t d_control_symbol_neg;
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uint16_t d_data_reg;
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uint16_t d_wrong_bits;
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uint16_t d_wrong_bits_neg;
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uint8_t d_nwrong;
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uint8_t d_nwrong_neg;
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size_t d_word_cnt;
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uint8_t *d_8b_words;
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int *d_erasures_indexes;
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d_state_t d_state;
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size_t d_bitstream_idx;
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std::deque<uint8_t> d_bitstream;
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bool
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set_access_code(const std::string &control_symbol);
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void
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process_10b(uint16_t word, size_t write_pos);
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inline uint16_t
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pack_10b_word(size_t idx);
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int d_lookup_8b10b[2][256] = {
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// RD = -1 cases
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{
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/* 00 */0x274,
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/* 01 */0x1d4,
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/* 02 */0x2d4,
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/* 03 */0x71b,
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/* 04 */0x354,
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/* 05 */0x69b,
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/* 06 */0x59b,
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/* 07 */0x78b,
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/* 08 */0x394,
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/* 09 */0x65b,
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/* 0a */0x55b,
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/* 0b */0x74b,
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/* 0c */0x4db,
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/* 0d */0x6cb,
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/* 0e */0x5cb,
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/* 0f */0x174,
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/* 10 */0x1b4,
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/* 11 */0x63b,
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/* 12 */0x53b,
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/* 13 */0x72b,
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/* 14 */0x4bb,
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/* 15 */0x6ab,
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/* 16 */0x5ab,
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/* 17 */0x3a4,
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/* 18 */0x334,
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/* 19 */0x66b,
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/* 1a */0x56b,
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/* 1b */0x364,
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/* 1c */0x4eb,
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/* 1d */0x2e4,
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/* 1e */0x1e4,
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/* 1f */0x2b4,
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/* 20 */0x679,
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/* 21 */0x5d9,
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/* 22 */0x6d9,
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/* 23 */0x319,
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/* 24 */0x759,
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/* 25 */0x299,
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/* 26 */0x199,
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/* 27 */0x389,
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/* 28 */0x799,
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/* 29 */0x259,
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/* 2a */0x159,
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/* 2b */0x349,
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/* 2c */0x0d9,
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/* 2d */0x2c9,
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/* 2e */0x1c9,
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/* 2f */0x579,
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/* 30 */0x5b9,
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/* 31 */0x239,
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/* 32 */0x139,
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/* 33 */0x329,
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/* 34 */0x0b9,
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/* 35 */0x2a9,
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/* 36 */0x1a9,
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/* 37 */0x7a9,
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/* 38 */0x739,
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/* 39 */0x269,
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/* 3a */0x169,
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/* 3b */0x769,
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/* 3c */0x0e9,
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/* 3d */0x6e9,
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/* 3e */0x5e9,
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/* 3f */0x6b9,
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/* 40 */0x675,
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/* 41 */0x5d5,
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/* 42 */0x6d5,
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/* 43 */0x315,
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/* 44 */0x755,
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/* 45 */0x295,
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/* 46 */0x195,
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/* 47 */0x385,
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/* 48 */0x795,
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/* 49 */0x255,
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/* 4a */0x155,
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/* 4b */0x345,
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/* 4c */0x0d5,
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/* 4d */0x2c5,
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/* 4e */0x1c5,
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/* 4f */0x575,
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/* 50 */0x5b5,
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/* 51 */0x235,
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/* 52 */0x135,
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/* 53 */0x325,
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/* 54 */0x0b5,
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/* 55 */0x2a5,
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/* 56 */0x1a5,
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/* 57 */0x7a5,
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/* 58 */0x735,
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/* 59 */0x265,
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/* 5a */0x165,
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/* 5b */0x765,
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/* 5c */0x0e5,
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/* 5d */0x6e5,
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/* 5e */0x5e5,
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/* 5f */0x6b5,
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/* 60 */0x673,
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/* 61 */0x5d3,
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/* 62 */0x6d3,
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/* 63 */0x31c,
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/* 64 */0x753,
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/* 65 */0x29c,
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/* 66 */0x19c,
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/* 67 */0x38c,
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/* 68 */0x793,
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/* 69 */0x25c,
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/* 6a */0x15c,
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/* 6b */0x34c,
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/* 6c */0x0dc,
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/* 6d */0x2cc,
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/* 6e */0x1cc,
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/* 6f */0x573,
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/* 70 */0x5b3,
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/* 71 */0x23c,
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/* 72 */0x13c,
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/* 73 */0x32c,
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/* 74 */0x0bc,
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/* 75 */0x2ac,
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/* 76 */0x1ac,
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/* 77 */0x7a3,
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/* 78 */0x733,
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/* 79 */0x26c,
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/* 7a */0x16c,
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/* 7b */0x763,
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/* 7c */0x0ec,
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/* 7d */0x6e3,
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/* 7e */0x5e3,
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/* 7f */0x6b3,
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/* 80 */0x272,
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/* 81 */0x1d2,
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/* 82 */0x2d2,
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/* 83 */0x71d,
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/* 84 */0x352,
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/* 85 */0x69d,
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/* 86 */0x59d,
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/* 87 */0x78d,
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/* 88 */0x392,
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/* 89 */0x65d,
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/* 8a */0x55d,
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/* 8b */0x74d,
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/* 8c */0x4dd,
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/* 8d */0x6cd,
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/* 8e */0x5cd,
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/* 8f */0x172,
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/* 90 */0x1b2,
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/* 91 */0x63d,
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/* 92 */0x53d,
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/* 93 */0x72d,
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/* 94 */0x4bd,
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/* 95 */0x6ad,
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/* 96 */0x5ad,
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/* 97 */0x3a2,
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/* 98 */0x332,
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/* 99 */0x66d,
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/* 9a */0x56d,
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/* 9b */0x362,
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/* 9c */0x4ed,
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/* 9d */0x2e2,
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/* 9e */0x1e2,
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/* 9f */0x2b2,
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/* a0 */0x67a,
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/* a1 */0x5da,
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/* a2 */0x6da,
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/* a3 */0x31a,
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/* a4 */0x75a,
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/* a5 */0x29a,
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/* a6 */0x19a,
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/* a7 */0x38a,
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/* a8 */0x79a,
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/* a9 */0x25a,
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/* aa */0x15a,
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/* ab */0x34a,
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/* ac */0x0da,
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/* ad */0x2ca,
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/* ae */0x1ca,
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/* af */0x57a,
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/* b0 */0x5ba,
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/* b1 */0x23a,
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/* b2 */0x13a,
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/* b3 */0x32a,
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/* b4 */0x0ba,
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/* b5 */0x2aa,
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/* b6 */0x1aa,
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/* b7 */0x7aa,
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/* b8 */0x73a,
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/* b9 */0x26a,
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/* ba */0x16a,
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/* bb */0x76a,
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/* bc */0x0ea,
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/* bd */0x6ea,
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/* be */0x5ea,
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/* bf */0x6ba,
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/* c0 */0x676,
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/* c1 */0x5d6,
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/* c2 */0x6d6,
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/* c3 */0x316,
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/* c4 */0x756,
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/* c5 */0x296,
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/* c6 */0x196,
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/* c7 */0x386,
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/* c8 */0x796,
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/* c9 */0x256,
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/* ca */0x156,
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/* cb */0x346,
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/* cc */0x0d6,
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/* cd */0x2c6,
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/* ce */0x1c6,
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/* cf */0x576,
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/* d0 */0x5b6,
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/* d1 */0x236,
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/* d2 */0x136,
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/* d3 */0x326,
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/* d4 */0x0b6,
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/* d5 */0x2a6,
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/* d6 */0x1a6,
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/* d7 */0x7a6,
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/* d8 */0x736,
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/* d9 */0x266,
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/* da */0x166,
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/* db */0x766,
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/* dc */0x0e6,
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/* dd */0x6e6,
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/* de */0x5e6,
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/* df */0x6b6,
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/* e0 */0x271,
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/* e1 */0x1d1,
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/* e2 */0x2d1,
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/* e3 */0x71e,
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/* e4 */0x351,
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/* e5 */0x69e,
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/* e6 */0x59e,
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/* e7 */0x78e,
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/* e8 */0x391,
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/* e9 */0x65e,
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/* ea */0x55e,
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/* eb */0x74e,
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/* ec */0x4de,
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/* ed */0x6ce,
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/* ee */0x5ce,
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/* ef */0x171,
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/* f0 */0x1b1,
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/* f1 */0x637,
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/* f2 */0x537,
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/* f3 */0x72e,
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/* f4 */0x4b7,
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/* f5 */0x6ae,
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/* f6 */0x5ae,
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/* f7 */0x3a1,
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/* f8 */0x331,
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/* f9 */0x66e,
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/* fa */0x56e,
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/* fb */0x361,
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/* fc */0x4ee,
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/* fd */0x2e1,
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/* fe */0x1e1,
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/* ff */0x2b1,
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}, // RD = +1 cases
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{
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/* 00 */0x58b,
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/* 01 */0x62b,
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/* 02 */0x52b,
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/* 03 */0x314,
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/* 04 */0x4ab,
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/* 05 */0x294,
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/* 06 */0x194,
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/* 07 */0x074,
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/* 08 */0x46b,
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/* 09 */0x254,
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/* 0a */0x154,
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/* 0b */0x344,
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/* 0c */0x0d4,
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/* 0d */0x2c4,
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/* 0e */0x1c4,
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/* 0f */0x68b,
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/* 10 */0x64b,
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/* 11 */0x234,
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/* 12 */0x134,
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/* 13 */0x324,
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/* 14 */0x0b4,
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/* 15 */0x2a4,
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/* 16 */0x1a4,
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/* 17 */0x45b,
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/* 18 */0x4cb,
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/* 19 */0x264,
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/* 1a */0x164,
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/* 1b */0x49b,
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/* 1c */0x0e4,
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/* 1d */0x51b,
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/* 1e */0x61b,
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/* 1f */0x54b,
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/* 20 */0x189,
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/* 21 */0x229,
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/* 22 */0x129,
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/* 23 */0x719,
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/* 24 */0x0a9,
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/* 25 */0x699,
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/* 26 */0x599,
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/* 27 */0x479,
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/* 28 */0x069,
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/* 29 */0x659,
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/* 2a */0x559,
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/* 2b */0x749,
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/* 2c */0x4d9,
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/* 2d */0x6c9,
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/* 2e */0x5c9,
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/* 2f */0x289,
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/* 30 */0x249,
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/* 31 */0x639,
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/* 32 */0x539,
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/* 33 */0x729,
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/* 34 */0x4b9,
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/* 35 */0x6a9,
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/* 36 */0x5a9,
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/* 37 */0x059,
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/* 38 */0x0c9,
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/* 39 */0x669,
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/* 3a */0x569,
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/* 3b */0x099,
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/* 3c */0x4e9,
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/* 3d */0x119,
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/* 3e */0x219,
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/* 3f */0x149,
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/* 40 */0x185,
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/* 41 */0x225,
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/* 42 */0x125,
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/* 43 */0x715,
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/* 44 */0x0a5,
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/* 45 */0x695,
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/* 46 */0x595,
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/* 47 */0x475,
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/* 48 */0x065,
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/* 49 */0x655,
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/* 4a */0x555,
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/* 4b */0x745,
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/* 4c */0x4d5,
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/* 4d */0x6c5,
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/* 4e */0x5c5,
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/* 4f */0x285,
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/* 50 */0x245,
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/* 51 */0x635,
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/* 52 */0x535,
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/* 53 */0x725,
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/* 54 */0x4b5,
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/* 55 */0x6a5,
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/* 56 */0x5a5,
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|
/* 57 */0x055,
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/* 58 */0x0c5,
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|
/* 59 */0x665,
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/* 5a */0x565,
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|
/* 5b */0x095,
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/* 5c */0x4e5,
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/* 5d */0x115,
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/* 5e */0x215,
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/* 5f */0x145,
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/* 60 */0x18c,
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/* 61 */0x22c,
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/* 62 */0x12c,
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/* 63 */0x713,
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/* 64 */0x0ac,
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|
/* 65 */0x693,
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|
/* 66 */0x593,
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|
/* 67 */0x473,
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|
/* 68 */0x06c,
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|
/* 69 */0x653,
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|
/* 6a */0x553,
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/* 6b */0x743,
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/* 6c */0x4d3,
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/* 6d */0x6c3,
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/* 6e */0x5c3,
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/* 6f */0x28c,
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/* 70 */0x24c,
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/* 71 */0x633,
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/* 72 */0x533,
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/* 73 */0x723,
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|
/* 74 */0x4b3,
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|
/* 75 */0x6a3,
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|
/* 76 */0x5a3,
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/* 77 */0x05c,
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/* 78 */0x0cc,
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|
/* 79 */0x663,
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/* 7a */0x563,
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/* 7b */0x09c,
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/* 7c */0x4e3,
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/* 7d */0x11c,
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/* 7e */0x21c,
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/* 7f */0x14c,
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/* 80 */0x58d,
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/* 81 */0x62d,
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/* 82 */0x52d,
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/* 83 */0x312,
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/* 84 */0x4ad,
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/* 85 */0x292,
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|
/* 86 */0x192,
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/* 87 */0x072,
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/* 88 */0x46d,
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/* 89 */0x252,
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/* 8a */0x152,
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/* 8b */0x342,
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/* 8c */0x0d2,
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/* 8d */0x2c2,
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/* 8e */0x1c2,
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/* 8f */0x68d,
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/* 90 */0x64d,
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/* 91 */0x232,
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/* 92 */0x132,
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/* 93 */0x322,
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|
/* 94 */0x0b2,
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/* 95 */0x2a2,
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/* 96 */0x1a2,
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/* 97 */0x45d,
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|
/* 98 */0x4cd,
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/* 99 */0x262,
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/* 9a */0x162,
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/* 9b */0x49d,
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/* 9c */0x0e2,
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/* 9d */0x51d,
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/* 9e */0x61d,
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|
/* 9f */0x54d,
|
|
/* a0 */0x18a,
|
|
/* a1 */0x22a,
|
|
/* a2 */0x12a,
|
|
/* a3 */0x71a,
|
|
/* a4 */0x0aa,
|
|
/* a5 */0x69a,
|
|
/* a6 */0x59a,
|
|
/* a7 */0x47a,
|
|
/* a8 */0x06a,
|
|
/* a9 */0x65a,
|
|
/* aa */0x55a,
|
|
/* ab */0x74a,
|
|
/* ac */0x4da,
|
|
/* ad */0x6ca,
|
|
/* ae */0x5ca,
|
|
/* af */0x28a,
|
|
/* b0 */0x24a,
|
|
/* b1 */0x63a,
|
|
/* b2 */0x53a,
|
|
/* b3 */0x72a,
|
|
/* b4 */0x4ba,
|
|
/* b5 */0x6aa,
|
|
/* b6 */0x5aa,
|
|
/* b7 */0x05a,
|
|
/* b8 */0x0ca,
|
|
/* b9 */0x66a,
|
|
/* ba */0x56a,
|
|
/* bb */0x09a,
|
|
/* bc */0x4ea,
|
|
/* bd */0x11a,
|
|
/* be */0x21a,
|
|
/* bf */0x14a,
|
|
/* c0 */0x186,
|
|
/* c1 */0x226,
|
|
/* c2 */0x126,
|
|
/* c3 */0x716,
|
|
/* c4 */0x0a6,
|
|
/* c5 */0x696,
|
|
/* c6 */0x596,
|
|
/* c7 */0x476,
|
|
/* c8 */0x066,
|
|
/* c9 */0x656,
|
|
/* ca */0x556,
|
|
/* cb */0x746,
|
|
/* cc */0x4d6,
|
|
/* cd */0x6c6,
|
|
/* ce */0x5c6,
|
|
/* cf */0x286,
|
|
/* d0 */0x246,
|
|
/* d1 */0x636,
|
|
/* d2 */0x536,
|
|
/* d3 */0x726,
|
|
/* d4 */0x4b6,
|
|
/* d5 */0x6a6,
|
|
/* d6 */0x5a6,
|
|
/* d7 */0x056,
|
|
/* d8 */0x0c6,
|
|
/* d9 */0x666,
|
|
/* da */0x566,
|
|
/* db */0x096,
|
|
/* dc */0x4e6,
|
|
/* dd */0x116,
|
|
/* de */0x216,
|
|
/* df */0x146,
|
|
/* e0 */0x58e,
|
|
/* e1 */0x62e,
|
|
/* e2 */0x52e,
|
|
/* e3 */0x311,
|
|
/* e4 */0x4ae,
|
|
/* e5 */0x291,
|
|
/* e6 */0x191,
|
|
/* e7 */0x071,
|
|
/* e8 */0x46e,
|
|
/* e9 */0x251,
|
|
/* ea */0x151,
|
|
/* eb */0x348,
|
|
/* ec */0x0d1,
|
|
/* ed */0x2c8,
|
|
/* ee */0x1c8,
|
|
/* ef */0x68e,
|
|
/* f0 */0x64e,
|
|
/* f1 */0x231,
|
|
/* f2 */0x131,
|
|
/* f3 */0x321,
|
|
/* f4 */0x0b1,
|
|
/* f5 */0x2a1,
|
|
/* f6 */0x1a1,
|
|
/* f7 */0x45e,
|
|
/* f8 */0x4ce,
|
|
/* f9 */0x261,
|
|
/* fa */0x161,
|
|
/* fb */0x49e,
|
|
/* fc */0x0e1,
|
|
/* fd */0x51e,
|
|
/* fe */0x61e,
|
|
/* ff */0x54e,
|
|
}
|
|
};
|
|
};
|
|
|
|
} // namespace satnogs
|
|
} // namespace gr
|
|
|
|
#endif /* INCLUDED_SATNOGS_AMSAT_DUV_DECODER_H */
|
|
|