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/* -*- c++ -*- */
/*
* Copyright 2001,2003 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_PPIO_H
#define INCLUDED_PPIO_H
#include <boost/shared_ptr.hpp>
class ppio;
typedef boost::shared_ptr<ppio> ppio_sptr;
/*!
* \brief abstract class that provides low level access to parallel port bits
* \ingroup hardware
*/
class ppio {
public:
ppio () {}
virtual ~ppio ();
virtual void write_data (unsigned char v) = 0;
virtual unsigned char read_data () = 0;
virtual void write_control (unsigned char v) = 0;
virtual unsigned char read_control () = 0;
virtual unsigned char read_status () = 0;
virtual void lock () = 0;
virtual void unlock () = 0;
};
/*!
* \brief Factory method.
*
* Split out from class to make life easier for SWIG
*/
ppio_sptr make_ppio (int which_pp);
#endif /* INCLUDED_PPIO_H */
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