Add the optional System Fusion Parrot.

YSFParrot.h

@@ -0,0 +1,46 @@
+/*
+*   Copyright (C) 2016 by Jonathan Naylor G4KLX
+*
+*   This program 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 of the License, or
+*   (at your option) any later version.
+*
+*   This program 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 program; if not, write to the Free Software
+*   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#if !defined(YAFParrot_H)
+#define	YSFParrot_H
+
+#include "Timer.h"
+
+class CYSFParrot
+{
+public:
+	CYSFParrot(unsigned int timeout);
+	~CYSFParrot();
+
+	bool write(const unsigned char* data);
+
+	void read(unsigned char* data);
+
+	bool hasData();
+
+	void clock(unsigned int ms);
+
+private:
+	unsigned char* m_data;
+	unsigned int   m_length;
+	unsigned int   m_used;
+	unsigned int   m_ptr;
+	CTimer         m_timer;
+};
+
+#endif