1 files changed, 89 insertions, 0 deletions
diff --git a/gr-atsc/src/lib/atsc_bit_timing_loop.h b/gr-atsc/src/lib/atsc_bit_timing_loop.h
new file mode 100644
index 000000000..582092763
--- /dev/null
+++ b/gr-atsc/src/lib/atsc_bit_timing_loop.h
@@ -0,0 +1,89 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 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 2, 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+#ifndef INCLUDED_ATSC_BIT_TIMING_LOOP_H
+#define INCLUDED_ATSC_BIT_TIMING_LOOP_H
+
+#include <cstdio>
+#include <gr_block.h>
+#include <atsci_diag_output.h>
+#include <atsci_sssr.h>
+#include <atsci_syminfo.h>
+
+class atsc_bit_timing_loop;
+typedef boost::shared_ptr<atsc_bit_timing_loop> atsc_bit_timing_loop_sptr;
+
+atsc_bit_timing_loop_sptr atsc_make_bit_timing_loop();
+
+/*!
+ * \brief ATSC BitTimingLoop3
+ * \ingroup atsc
+ *
+ * This class accepts a single real input and produces two outputs,
+ *  the raw symbol (float) and the tag (atsc_syminfo)
+ */
+class atsc_bit_timing_loop : public gr_block
+{
+  friend atsc_bit_timing_loop_sptr atsc_make_bit_timing_loop();
+
+  atsc_bit_timing_loop();
+
+public:
+  int work (int noutput_items,
+	    gr_vector_const_void_star &input_items,
+	    gr_vector_void_star &output_items);
+
+  void reset() { /* nop */ }
+
+  ~atsc_bit_timing_loop () { };
+
+  void forecast (int noutput_items, gr_vector_int &ninput_items_required);
+
+  int  general_work (int noutput_items,
+                     gr_vector_int &ninput_items,
+                     gr_vector_const_void_star &input_items,
+                     gr_vector_void_star &output_items);
+
+
+  // debug (NOPs)
+  void set_mu (double a_mu) {  }
+  void set_no_update (bool a_no_update) {  }
+  void set_loop_filter_tap (double tap)  { }
+  void set_timing_rate (double rate)     { }
+
+
+ protected:
+
+  atsci_sssr                    d_sssr;
+  atsci_interpolator            d_interp;
+  unsigned long long            d_next_input;
+  double                        d_rx_clock_to_symbol_freq;
+
+  unsigned long long            inputs0_index;     // for inputs[0].index
+  unsigned long			inputs0_size;	   // for inputs[0].size
+
+
+};
+
+#endif /* INCLUDED_ATSC_BIT_TIMING_LOOP_H */
+
+
+