- added preamble_sync

git-svn-id: http://moon:8086/svn/software/trunk/projects/GnuRadio@390 b431acfa-c32f-4a4a-93f1-934dc6c82436
2019-01-08 16:20:37 +00:00
parent b8f94c2f08
commit 5df2d7d90f
10 changed files with 343 additions and 5 deletions
@@ -0,0 +1,63 @@
+/* -*- c++ -*- */
+/* 
+ * Copyright 2019 Jay Arrowfield.
+ * 
+ * This 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.
+ * 
+ * This software 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 this software; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef INCLUDED_JAY_PREAMBLE_SYNC_IMPL_H
+#define INCLUDED_JAY_PREAMBLE_SYNC_IMPL_H
+
+#include <jay/preamble_sync.h>
+
+namespace gr
+{
+namespace jay
+{
+
+class preamble_sync_impl : public preamble_sync
+{
+    private:
+	enum State
+	{
+		Init,
+		Preamble,
+		Sync
+	};
+		
+	State m_state;
+	State m_stateNext;
+	uint32_t m_word;
+	size_t m_wordCount;
+	size_t m_preambleCount;
+	public:
+	preamble_sync_impl();
+    ~preamble_sync_impl();
+
+     // Where all the action really happens
+    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);
+    };
+
+} // namespace jay
+} // namespace gr
+
+#endif /* INCLUDED_JAY_PREAMBLE_SYNC_IMPL_H */
+