private/bert.h

00001 /*
00002  * SpanDSP - a series of DSP components for telephony
00003  *
00004  * private/bert.h - Bit error rate tests.
00005  *
00006  * Written by Steve Underwood <steveu@coppice.org>
00007  *
00008  * Copyright (C) 2004 Steve Underwood
00009  *
00010  * All rights reserved.
00011  *
00012  * This program is free software; you can redistribute it and/or modify
00013  * it under the terms of the GNU Lesser General Public License version 2.1,
00014  * as published by the Free Software Foundation.
00015  *
00016  * This program is distributed in the hope that it will be useful,
00017  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00018  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00019  * GNU Lesser General Public License for more details.
00020  *
00021  * You should have received a copy of the GNU Lesser General Public
00022  * License along with this program; if not, write to the Free Software
00023  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00024  *
00025  * $Id: bert.h,v 1.2 2009/04/14 16:04:54 steveu Exp $
00026  */
00027 
00028 #if !defined(_SPANDSP_PRIVATE_BERT_H_)
00029 #define _SPANDSP_PRIVATE_BERT_H_
00030 
00031 typedef struct
00032 {
00033     uint32_t reg;
00034     int step;
00035     int step_bit;
00036     int bits;
00037     int zeros;
00038 } bert_tx_state_t;
00039 
00040 typedef struct
00041 {
00042     uint32_t reg;
00043     uint32_t ref_reg;
00044     uint32_t master_reg;
00045     int step;
00046     int step_bit;
00047     int resync;
00048     int bits;
00049     int zeros;
00050     int resync_len;
00051     int resync_percent;
00052     int resync_bad_bits;
00053     int resync_cnt;
00054     int report_countdown;
00055     int measurement_step;
00056 } bert_rx_state_t;
00057 
00058 /*!
00059     Bit error rate tester (BERT) descriptor. This defines the working state for a
00060     single instance of the BERT.
00061 */
00062 struct bert_state_s
00063 {
00064     int pattern;
00065     int pattern_class;
00066     bert_report_func_t reporter;
00067     void *user_data;
00068     int report_frequency;
00069     int limit;
00070 
00071     uint32_t mask;
00072     int shift;
00073     int shift2;
00074     int max_zeros;
00075     int invert;
00076     int resync_time;
00077 
00078     int decade_ptr[9];
00079     int decade_bad[9][10];
00080     int error_rate;
00081 
00082     bert_tx_state_t tx;
00083     bert_rx_state_t rx;
00084 
00085     bert_results_t results;
00086 
00087     /*! \brief Error and flow logging control */
00088     logging_state_t logging;
00089 };
00090 
00091 #endif
00092 /*- End of file ------------------------------------------------------------*/

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