---

DIO.h

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//  Title       :  DIO.h
//  Project     :  OSCAR Version 2.0
//  Created     :  04/08/04
//  Author      :  Chetan Kapoor
//  Platforms   :  All
//  Copyright   :  The University of Texas at Austin, 2002. All rights reserved.
//
//                 This software and documentation constitute an unpublished work
//                 and contain valuable trade secrets and proprietary information
//                 belonging to University.  None of the foregoing material may be
//                 copied  or duplicated or disclosed without the express, written
//                 permission of University.  UNIVERSITY EXPRESSLY DISCLAIMS ANY
//                 AND ALL WARRANTIES CONCERNING THIS SOFTWARE AND DOCUMENTATION,
//                 INCLUDING ANY WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
//                 PARTICULAR PURPOSE, AND WARRANTIES OF PERFORMANCE, AND ANY WARRANTY
//                 THAT MIGHT OTHERWISE ARISE FROM COURSE OF DEALING OR USAGE OF TRADE.
//                 NO WARRANTY IS EITHER EXPRESS OR IMPLIED WITH RESPECT TO THE USE OF
//                 THE SOFTWARE OR DOCUMENTATION.  Under no circumstances shall
//                 University be liable for incidental, special, indirect, direct or
//                 consequential damages or loss of profits, interruption of business,
//                 or related expenses which may arise from use of software or documentation,
//                 including but not limited to those resulting from defects in software
//                 and/or documentation, or loss or inaccuracy of data of any kind.
//
//  Purpose     :  Abstract class for digital IO
//-----------------------------------------------------------------------------
//
//

#ifndef DIO_h
#define DIO_h

#include "Base/Base.h"

namespace OSCAR {

  class DIO : public Base
  {
  public:
    enum PortDirection  {Input, Output};

    DIO(const String& name = String(), OSCARError& err = DUMMY_ERROR(noError));

    virtual ~DIO(){}

    bool SetPortDirection(DIO::PortDirection direction);

    DIO::PortDirection GetPortDirection() const;
    virtual bool ReadDI(unsigned int channel, bool& state) = 0;

    virtual bool WriteDI(unsigned int channel, bool state) = 0;

  protected:
    PortDirection direction;
  };

  #include "IODevices/DIO.ipp"

}
#endif // DIO_h

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