Merge branch 'dfsg-orig'

[debian/gnuradio] / gr-noaa / lib / noaa_hrpt_deframer.h

diff --git a/gr-noaa/lib/noaa_hrpt_deframer.h b/gr-noaa/lib/noaa_hrpt_deframer.h
new file mode 100644 (file)
index 0000000..b11d0fa
--- /dev/null
+++ b/gr-noaa/lib/noaa_hrpt_deframer.h
@@ -0,0 +1,57 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2009 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.
+ */
+
+#ifndef INCLUDED_NOAA_HRPT_DEFRAMER_H
+#define INCLUDED_NOAA_HRPT_DEFRAMER_H
+
+#include <gr_block.h>
+
+class noaa_hrpt_deframer;
+typedef boost::shared_ptr<noaa_hrpt_deframer> noaa_hrpt_deframer_sptr;
+
+noaa_hrpt_deframer_sptr
+noaa_make_hrpt_deframer();
+
+class noaa_hrpt_deframer : public gr_block
+{
+  friend noaa_hrpt_deframer_sptr noaa_make_hrpt_deframer();
+  noaa_hrpt_deframer();
+
+  unsigned int       d_state;
+  bool               d_mid_bit;
+  unsigned char      d_last_bit;
+  unsigned int       d_bit_count;
+  unsigned int       d_word_count;
+  unsigned long long d_shifter;     // 60 bit sync word
+  unsigned short     d_word;        // 10 bit HRPT word
+
+  void enter_idle();
+  void enter_synced();
+ 
+public:
+  int general_work(int noutput_items,
+                  gr_vector_int &ninput_items,
+                  gr_vector_const_void_star &input_items,
+                  gr_vector_void_star &output_items);
+};
+
+#endif /* INCLUDED_NOAA_HRPT_DEFRAMER_H */