00001 /* -*- c++ -*- */ 00002 /* 00003 * Copyright 2004 Free Software Foundation, Inc. 00004 * 00005 * This file is part of GNU Radio 00006 * 00007 * GNU Radio is free software; you can redistribute it and/or modify 00008 * it under the terms of the GNU General Public License as published by 00009 * the Free Software Foundation; either version 2, or (at your option) 00010 * any later version. 00011 * 00012 * GNU Radio is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 * GNU General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU General Public License 00018 * along with GNU Radio; see the file COPYING. If not, write to 00019 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, 00020 * Boston, MA 02111-1307, USA. 00021 */ 00022 00023 #ifndef INCLUDED_GR_LFSR_32K_SOURCE_S_H 00024 #define INCLUDED_GR_LFSR_32K_SOURCE_S_H 00025 00026 #include <gr_sync_block.h> 00027 #include <gri_lfsr_32k.h> 00028 00029 class gr_lfsr_32k_source_s; 00030 typedef boost::shared_ptr<gr_lfsr_32k_source_s> gr_lfsr_32k_source_s_sptr; 00031 00032 gr_lfsr_32k_source_s_sptr gr_make_lfsr_32k_source_s (); 00033 00041 class gr_lfsr_32k_source_s : public gr_sync_block 00042 { 00043 friend gr_lfsr_32k_source_s_sptr gr_make_lfsr_32k_source_s (); 00044 00045 00046 static const int BUFSIZE = 2048 - 1; // ensure pattern isn't packet aligned 00047 int d_index; 00048 short d_buffer[BUFSIZE]; 00049 00050 gr_lfsr_32k_source_s (); 00051 00052 public: 00053 00054 virtual int work (int noutput_items, 00055 gr_vector_const_void_star &input_items, 00056 gr_vector_void_star &output_items); 00057 }; 00058 00059 00060 #endif