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Diffstat (limited to 'gr-digital/include/digital_ofdm_frame_sink.h')
| -rw-r--r-- | gr-digital/include/digital_ofdm_frame_sink.h | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/gr-digital/include/digital_ofdm_frame_sink.h b/gr-digital/include/digital_ofdm_frame_sink.h deleted file mode 100644 index 5785d4be7..000000000 --- a/gr-digital/include/digital_ofdm_frame_sink.h +++ /dev/null @@ -1,127 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2007,2011 Free Software Foundation, Inc. - * - * This file is part of GNU Radio - * - * GNU Radio is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 3, or (at your option) - * any later version. - * - * GNU Radio is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with GNU Radio; see the file COPYING. If not, write to - * the Free Software Foundation, Inc., 51 Franklin Street, - * Boston, MA 02110-1301, USA. - */ - -#ifndef INCLUDED_DIGITAL_OFDM_FRAME_SINK_H -#define INCLUDED_DIGITAL_OFDM_FRAME_SINK_H - -#include <digital_api.h> -#include <gr_sync_block.h> -#include <gr_msg_queue.h> - -class digital_ofdm_frame_sink; -typedef boost::shared_ptr<digital_ofdm_frame_sink> digital_ofdm_frame_sink_sptr; - -DIGITAL_API digital_ofdm_frame_sink_sptr -digital_make_ofdm_frame_sink (const std::vector<gr_complex> &sym_position, - const std::vector<unsigned char> &sym_value_out, - gr_msg_queue_sptr target_queue, unsigned int occupied_tones, - float phase_gain=0.25, float freq_gain=0.25*0.25/4.0); - -/*! - * \brief Takes an OFDM symbol in, demaps it into bits of 0's and 1's, packs - * them into packets, and sends to to a message queue sink. - * \ingroup sink_blk - * \ingroup ofdm_blk - * - * NOTE: The mod input parameter simply chooses a pre-defined demapper/slicer. Eventually, - * we want to be able to pass in a reference to an object to do the demapping and slicing - * for a given modulation type. - */ -class DIGITAL_API digital_ofdm_frame_sink : public gr_sync_block -{ - friend DIGITAL_API digital_ofdm_frame_sink_sptr - digital_make_ofdm_frame_sink (const std::vector<gr_complex> &sym_position, - const std::vector<unsigned char> &sym_value_out, - gr_msg_queue_sptr target_queue, unsigned int occupied_tones, - float phase_gain, float freq_gain); - - private: - enum state_t {STATE_SYNC_SEARCH, STATE_HAVE_SYNC, STATE_HAVE_HEADER}; - - static const int MAX_PKT_LEN = 4096; - static const int HEADERBYTELEN = 4; - - gr_msg_queue_sptr d_target_queue; // where to send the packet when received - state_t d_state; - unsigned int d_header; // header bits - int d_headerbytelen_cnt; // how many so far - - unsigned char *d_bytes_out; // hold the current bytes produced by the demapper - - unsigned int d_occupied_carriers; - unsigned int d_byte_offset; - unsigned int d_partial_byte; - - unsigned char d_packet[MAX_PKT_LEN]; // assembled payload - int d_packetlen; // length of packet - int d_packet_whitener_offset; // offset into whitener string to use - int d_packetlen_cnt; // how many so far - - gr_complex * d_derotated_output; // Pointer to output stream to send deroated symbols out - - std::vector<gr_complex> d_sym_position; - std::vector<unsigned char> d_sym_value_out; - std::vector<gr_complex> d_dfe; - unsigned int d_nbits; - - unsigned char d_resid; - unsigned int d_nresid; - float d_phase; - float d_freq; - float d_phase_gain; - float d_freq_gain; - float d_eq_gain; - - std::vector<int> d_subcarrier_map; - - protected: - digital_ofdm_frame_sink(const std::vector<gr_complex> &sym_position, - const std::vector<unsigned char> &sym_value_out, - gr_msg_queue_sptr target_queue, unsigned int occupied_tones, - float phase_gain, float freq_gain); - - void enter_search(); - void enter_have_sync(); - void enter_have_header(); - - bool header_ok() - { - // confirm that two copies of header info are identical - return ((d_header >> 16) ^ (d_header & 0xffff)) == 0; - } - - unsigned char slicer(const gr_complex x); - unsigned int demapper(const gr_complex *in, - unsigned char *out); - - bool set_sym_value_out(const std::vector<gr_complex> &sym_position, - const std::vector<unsigned char> &sym_value_out); - - public: - ~digital_ofdm_frame_sink(); - - int work(int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); -}; - -#endif /* INCLUDED_GR_OFDM_FRAME_SINK_H */ |