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ppio.h

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00001 /* -*- c++ -*- */
00002 /*
00003  * Copyright 2001,2003 Free Software Foundation, Inc.
00004  * 
00005  * This file is part of GNU Radio
00006  * 
00007  * GNU Radio is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License as published by
00009  * the Free Software Foundation; either version 2, or (at your option)
00010  * any later version.
00011  * 
00012  * GNU Radio is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  * 
00017  * You should have received a copy of the GNU General Public License
00018  * along with GNU Radio; see the file COPYING.  If not, write to
00019  * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
00020  * Boston, MA 02111-1307, USA.
00021  */
00022 
00023 #ifndef _PPIO_H_
00024 #define _PPIO_H_
00025 
00030 class ppio {
00031  public:
00032   ppio () {}
00033   virtual ~ppio ();
00034 
00035   virtual void write_data (unsigned char v) = 0;
00036   virtual unsigned char read_data () = 0;
00037   virtual void write_control (unsigned char v) = 0;
00038   virtual unsigned char read_control () = 0;
00039   virtual unsigned char read_status () = 0;
00040 
00041   virtual void lock () = 0;
00042   virtual void unlock () = 0;
00043 
00044   static ppio *make (int which_pp);
00045 };
00046 
00047 
00048 #endif /* _PPIO_H_ */

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