GNU Radio's LORA Package
decode_impl.h
Go to the documentation of this file.
1/* -*- c++ -*- */
2/*
3 * Copyright 2016 Bastille Networks.
4 *
5 * This is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 3, or (at your option)
8 * any later version.
9 *
10 * This software is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this software; see the file COPYING. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street,
18 * Boston, MA 02110-1301, USA.
19 */
20
21#ifndef INCLUDED_LORA_DECODE_IMPL_H
22#define INCLUDED_LORA_DECODE_IMPL_H
23
24#include <iostream>
25#include <bitset>
26#include <lora/decode.h>
27
28namespace gr {
29 namespace lora {
30
31 class decode_impl : public decode
32 {
33 private:
34 pmt::pmt_t d_in_port;
35 pmt::pmt_t d_out_port;
36
37 const unsigned short *d_whitening_sequence;
38
39 unsigned char d_sf;
40 unsigned char d_cr;
41 bool d_ldr;
42 bool d_header;
43
44 unsigned short d_fft_size;
45 unsigned char d_interleaver_size;
46
47 std::vector<unsigned short> d_symbols;
48 std::vector<unsigned char> d_codewords;
49 std::vector<unsigned char> d_bytes;
50
51 public:
52 decode_impl( short spreading_factor,
53 short code_rate,
54 bool low_data_rate,
55 bool header);
57
58 void to_gray(std::vector<unsigned short> &symbols);
59 void from_gray(std::vector<unsigned short> &symbols);
60 void whiten(std::vector<unsigned short> &symbols);
61 void deinterleave(std::vector<unsigned short> &symbols, std::vector<unsigned char> &codewords, unsigned char ppm, unsigned char rdd);
62 void hamming_decode(std::vector<unsigned char> &codewords, std::vector<unsigned char> &bytes, unsigned char rdd);
63 unsigned char parity(unsigned char c, unsigned char bitmask);
64 void print_payload(std::vector<unsigned char> &payload);
65
66 void print_bitwise_u8 (std::vector<unsigned char> &buffer);
67 void print_bitwise_u16(std::vector<unsigned short> &buffer);
68
69 void decode(pmt::pmt_t msg);
70
71 };
72
73 } // namespace lora
74} // namespace gr
75
76#endif /* INCLUDED_LORA_DECODE_IMPL_H */
Definition: decode_impl.h:32
void print_payload(std::vector< unsigned char > &payload)
void whiten(std::vector< unsigned short > &symbols)
unsigned char parity(unsigned char c, unsigned char bitmask)
void to_gray(std::vector< unsigned short > &symbols)
void from_gray(std::vector< unsigned short > &symbols)
void print_bitwise_u16(std::vector< unsigned short > &buffer)
void deinterleave(std::vector< unsigned short > &symbols, std::vector< unsigned char > &codewords, unsigned char ppm, unsigned char rdd)
void decode(pmt::pmt_t msg)
void hamming_decode(std::vector< unsigned char > &codewords, std::vector< unsigned char > &bytes, unsigned char rdd)
void print_bitwise_u8(std::vector< unsigned char > &buffer)
decode_impl(short spreading_factor, short code_rate, bool low_data_rate, bool header)
<+description of block+>
Definition: decode.h:40
Definition: decode.h:31