127 lines
3.9 KiB
C++
127 lines
3.9 KiB
C++
/* -*- c++ -*- */
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/*
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* Copyright 2004 Free Software Foundation, Inc.
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*
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* This file is part of GNU Radio
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*
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* GNU Radio 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 2, or (at your option)
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* any later version.
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*
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* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef INCLUDED_REPEATER_CHAN_USRP_H
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#define INCLUDED_REPEATER_CHAN_USRP_H
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#include <gr_sync_block.h>
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#include <gr_msg_queue.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <deque>
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class repeater_chan_usrp;
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typedef std::vector<bool> bit_vector;
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#include <imbe_vocoder.h>
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#include "waveforms.h"
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static const int N_PHASES = 8; // no. of points in PI/4 constellation
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static const int N_PHASES_2 = N_PHASES >> 1;
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/*
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* We use boost::shared_ptr's instead of raw pointers for all access
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* to gr_blocks (and many other data structures). The shared_ptr gets
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* us transparent reference counting, which greatly simplifies storage
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* management issues. This is especially helpful in our hybrid
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* C++ / Python system.
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*
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* See http://www.boost.org/libs/smart_ptr/smart_ptr.htm
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*
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* As a convention, the _sptr suffix indicates a boost::shared_ptr
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*/
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typedef boost::shared_ptr<repeater_chan_usrp> repeater_chan_usrp_sptr;
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typedef std::deque<uint8_t> dibit_queue;
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/*!
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* \brief Return a shared_ptr to a new instance of repeater_chan_usrp.
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*
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* To avoid accidental use of raw pointers, repeater_chan_usrp's
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* constructor is private. repeater_make_chan_usrp is the public
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* interface for creating new instances.
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*/
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repeater_chan_usrp_sptr repeater_make_chan_usrp (int listen_port, bool do_imbe, bool do_complex, bool do_float, float gain, int decim, gr_msg_queue_sptr queue);
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class repeater_chan_usrp : public gr_block
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{
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private:
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// The friend declaration allows repeater_make_chan_usrp to
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// access the private constructor.
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void init_sock(int udp_port);
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friend repeater_chan_usrp_sptr repeater_make_chan_usrp (int listen_port, bool do_imbe, bool do_complex, bool do_float, float gain, int decim, gr_msg_queue_sptr queue);
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repeater_chan_usrp (int listen_port, bool do_imbe, bool do_complex, bool do_float, float gain, int decim, gr_msg_queue_sptr queue); // private constructor
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// internal functions
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void check_read(void);
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void append_imbe_codeword(bit_vector& frame_body, int16_t frame_vector[], unsigned int& codeword_ct);
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// internal data
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bool d_do_imbe;
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unsigned int d_expected_seq;
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int read_sock;
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struct sockaddr_in read_sock_addr;
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bool warned_select;
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unsigned int codeword_ct;
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unsigned int frame_cnt;
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bool d_keyup_state;
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time_t d_timeout_time;
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unsigned int d_timeout_value;
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bit_vector f_body;
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imbe_vocoder vocoder;
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std::deque<uint8_t> output_queue;
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std::deque<int16_t> output_queue_s;
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gr_msg_queue_sptr d_msgq;
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float d_gain;
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int d_decim;
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int d_phase;
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int d_next_samp;
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gr_complex *d_current_sym;
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const float *d_current_fsym;
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int d_active_dibit;
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int d_shift_reg;
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bool d_muted;
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bool d_do_complex;
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bool d_do_float;
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gr_complex waveforms[N_PHASES][N_WAVEFORMS][N_SPS+1];
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public:
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~repeater_chan_usrp (); // public destructor
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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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#endif /* INCLUDED_REPEATER_CHAN_USRP_H */
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