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////////////////////////////////////////////////////////////////////////////////

//

// Filename:    deppbus.h

//

// Project:     CMod S6 System on a Chip, ZipCPU demonstration project

//

// Purpose:     An instantiation of a generic interface to a wishbone on a

//              device.  This particular instantiation uses a simplified

//      interface over a Digilent Adept Asynchronous Parallel Port Interface

//      (DEPP)--useful for working with the CMod-S6.

//

// Creator:     Dan Gisselquist, Ph.D.

//              Gisselquist Technology, LLC

//

////////////////////////////////////////////////////////////////////////////////

//

// Copyright (C) 2015-2016, Gisselquist Technology, LLC

//

// This program is free software (firmware): 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 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 MERCHANTIBILITY 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.  (It's in the $(ROOT)/doc directory, run make with no

// target there if the PDF file isn't present.)  If not, see

// <http://www.gnu.org/licenses/> for a copy.

//

// License:     GPL, v3, as defined and found on www.gnu.org,

//              http://www.gnu.org/licenses/gpl.html

//

//

////////////////////////////////////////////////////////////////////////////////

//

//

#ifndef DEPPBUS_H

#define DEPPBUS_H

#include "dpcdecl.h"

#include "dmgr.h"

#include "devbus.h"

class   DEPPBUS : public DEVBUS {

        HIF     m_dev;

        bool    m_int, m_err;

        void    depperr(void);

public:

        typedef DEVBUS::BUSW BUSW;

        DEPPBUS(char *szSel);

        ~DEPPBUS(void);

        void    kill(void);

        void    close(void);

        void    writeio(const BUSW a, const BUSW v);

        BUSW    readio(const BUSW a);

        void    readi(const BUSW a, const int len, BUSW *buf);

        void    readz(const BUSW a, const int len, BUSW *buf);

        void    writei(const BUSW a, const int len, const BUSW *buf);

        void    writez(const BUSW a, const int len, const BUSW *buf);

        bool    poll(void);

        void    usleep(unsigned msec);

        void    wait(void);

        bool    bus_err(void) const;

        void    reset_err(void);

        void    clear(void);

};

#endif