From 96c92bb05fdbd2d42bb485bee46e63931d465cc3 Mon Sep 17 00:00:00 2001
From: Johnathan Corgan
Date: Fri, 16 Oct 2009 12:22:42 -0700
Subject: Directory reorganization to newer layout
Top-level applications go into 'apps' (previous commit)
C++ library build goes into 'lib'
SWIG generation goes into 'swig'
Pure python modules/code goes into 'python'
---
gr-pager/src/pager_flex_deinterleave.cc | 94 ---------------------------------
1 file changed, 94 deletions(-)
delete mode 100644 gr-pager/src/pager_flex_deinterleave.cc
(limited to 'gr-pager/src/pager_flex_deinterleave.cc')
diff --git a/gr-pager/src/pager_flex_deinterleave.cc b/gr-pager/src/pager_flex_deinterleave.cc
deleted file mode 100644
index 25ea22e39..000000000
--- a/gr-pager/src/pager_flex_deinterleave.cc
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
- * Copyright 2004,2006 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.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <pager_flex_deinterleave.h>
-#include <pageri_bch3221.h>
-#include <pageri_util.h>
-#include <gr_io_signature.h>
-
-pager_flex_deinterleave_sptr pager_make_flex_deinterleave()
-{
- return pager_flex_deinterleave_sptr(new pager_flex_deinterleave());
-}
-
-pager_flex_deinterleave::pager_flex_deinterleave() :
- gr_sync_decimator("flex_deinterleave",
- gr_make_io_signature(1, 1, sizeof(unsigned char)),
- gr_make_io_signature(1, 1, sizeof(gr_int32)), 32)
-{
- set_output_multiple(8); // One FLEX block at a time
-}
-
-int pager_flex_deinterleave::work(int noutput_items,
- gr_vector_const_void_star &input_items,
- gr_vector_void_star &output_items)
-{
- const unsigned char *in = (const unsigned char *)input_items[0];
- gr_int32 *out = (gr_int32 *)output_items[0];
-
- // FLEX codewords are interleaved in blocks of 256 bits or 8, 32 bit
- // codes. To deinterleave we parcel each incoming bit into the MSB
- // of each codeword, then switch to MSB-1, etc. This is done by shifting
- // in the bits from the right on each codeword as the bits come in.
- // When we are done we have a FLEX block of eight codewords, ready for
- // conversion to data words.
- //
- // FLEX data words are recovered by reversing the bit order of the code
- // word, masking off the (reversed) ECC, and inverting the remainder of
- // the bits (!).
- //
- // The data portion of a FLEX frame consists of 11 of these deinterleaved
- // and converted blocks.
- //
- // set_output_multiple garauntees we have output space for at least
- // eight data words, and 256 bits are supplied on input
-
- int i, j;
- for (i = 0; i < 32; i++) {
- for (j = 0; j < 8; j++) {
- d_codewords[j] <<= 1;
- d_codewords[j] |= *in++;
- }
- }
-
- // Now convert code words into data words
- for (j = 0; j < 8; j++) {
- gr_int32 codeword = d_codewords[j];
-
- // Apply BCH 32,21 error correction
- // TODO: mark dataword when codeword fails ECC
- pageri_bch3221(codeword);
-
- // Reverse bit order
- codeword = pageri_reverse_bits32(codeword);
-
- // Mask off ECC then invert lower 21 bits
- codeword = (codeword & 0x001FFFFF)^0x001FFFFF;
-
- *out++ = codeword;
- }
-
- return j;
-}
--
cgit