1 files changed, 61 insertions, 0 deletions
diff --git a/src/prbs.h b/src/prbs.h
new file mode 100644
index 0000000..827ded6
--- /dev/null
+++ b/src/prbs.h
@@ -0,0 +1,61 @@
+/*
+   Copyright (C) 2005, 2006, 2007, 2008, 2009 Her Majesty the Queen in Right
+   of Canada (Communications Research Center Canada)
+   */
+/*
+   This file is part of CRC-DabMux.
+
+   CRC-DabMux 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 of the
+   License, or (at your option) any later version.
+
+   CRC-DabMux 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 CRC-DabMux.  If not, see <http://www.gnu.org/licenses/>.
+   */
+
+#ifndef _PRBS
+#define _PRBS
+
+#ifdef HAVE_CONFIG_H
+#   include "config.h"
+#endif
+
+
+#ifdef __cplusplus
+extern "C" { // }
+#endif
+
+typedef struct {
+    // table of matrix products used to update a 32-bit PRBS generator
+    unsigned long prbs_table [4] [256];
+    // table of weights for 8-bit bytes
+    unsigned char weight[256];
+    // PRBS polynomial generator
+    unsigned long polynomial;
+    // PRBS generator polarity mask
+    unsigned char polarity_mask;
+    // PRBS accumulator
+    unsigned long accum;
+} prbs_data;
+
+
+unsigned long parity_check(unsigned long prbs_accum);
+void gen_prbs_table(void* args);
+unsigned long update_prbs(void* args);
+void gen_weight_table(void* args);
+unsigned long error_count(void* args, unsigned char *rx_data,
+        int rx_data_length);
+void gen_sequence(void* args, unsigned char *tx_data, int tx_data_length,
+        unsigned long polynomial);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _PRBS