105 lines
3.5 KiB
C++
105 lines
3.5 KiB
C++
/* -*- c++ -*- */
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/*
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* Copyright 2009, 2010, 2011, 2012, 2013, 2014 Max H. Parke KA1RBI
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*
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* This 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, or (at your option)
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* any later version.
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*
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* This software 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 software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef INCLUDED_OP25_REPEATER_P25P1_FDMA_H
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#define INCLUDED_OP25_REPEATER_P25P1_FDMA_H
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#include <gnuradio/msg_queue.h>
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#include <sys/time.h>
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#include <deque>
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#include "ezpwd/rs"
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#include "log_ts.h"
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#include "op25_audio.h"
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#include "p25_framer.h"
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#include "p25p1_voice_encode.h"
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#include "p25p1_voice_decode.h"
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namespace gr {
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namespace op25_repeater {
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class p25p1_fdma
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{
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private:
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typedef std::vector<bool> bit_vector;
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typedef std::array<uint8_t, 12> block_array;
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typedef std::vector<block_array> block_vector;
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// internal functions
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bool header_codeword(uint64_t acc, uint32_t& nac, uint32_t& duid);
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void process_duid(uint32_t const duid, uint32_t const nac, const uint8_t* buf, const int len);
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void process_HDU(const bit_vector& A);
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void process_LCW(std::vector<uint8_t>& HB);
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int process_LLDU(const bit_vector& A, std::vector<uint8_t>& HB);
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void process_LDU1(const bit_vector& A);
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void process_LDU2(const bit_vector& A);
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void process_TTDU();
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void process_TDU15(const bit_vector& A);
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void process_TDU3();
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void process_TSBK(const bit_vector& fr, uint32_t fr_len);
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void process_PDU(const bit_vector& fr, uint32_t fr_len);
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void process_voice(const bit_vector& A);
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int process_blocks(const bit_vector& fr, uint32_t& fr_len, block_vector& dbuf);
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inline bool encrypted() { return (ess_algid != 0x80); }
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void send_msg(const std::string msg_str, long msg_type);
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// internal instance variables and state
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int write_bufp;
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char write_buf[512];
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int d_debug;
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bool d_do_imbe;
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bool d_do_output;
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bool d_do_msgq;
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bool d_do_audio_output;
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gr::msg_queue::sptr d_msg_queue;
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std::deque<int16_t> &output_queue;
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p25_framer* framer;
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struct timeval last_qtime;
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p25p1_voice_decode p1voice_decode;
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const op25_audio& op25audio;
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log_ts logts;
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ezpwd::RS<63,55> rs8; // Reed-Solomon decoders for 8, 12 and 16 bit parity
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ezpwd::RS<63,51> rs12;
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ezpwd::RS<63,47> rs16;
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uint16_t ess_keyid;
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uint16_t ess_algid;
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uint8_t ess_mi[9] = {0};
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uint16_t vf_tgid;
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int d_msgq_id;
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public:
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void reset_timer();
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void rx_sym (const uint8_t *syms, int nsyms);
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p25p1_fdma(const op25_audio& udp, int debug, bool do_imbe, bool do_output, bool do_msgq, gr::msg_queue::sptr queue, std::deque<int16_t> &output_queue, bool do_audio_output, int msgq_id);
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~p25p1_fdma();
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// Where all the action really happens
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int general_work(int noutput_items,
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gr_vector_int &ninput_items,
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gr_vector_const_void_star &input_items,
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gr_vector_void_star &output_items);
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};
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} // namespace
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} // namespace
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#endif /* INCLUDED_OP25_REPEATER_P25P1_FDMA_H */
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