/* ES40 emulator.
 * Copyright (C) 2007-2008 by the ES40 Emulator Project
 *
 * WWW    : http://sourceforge.net/projects/es40
 * E-mail : camiel@camicom.com
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * Although this is not required, the author would appreciate being notified of,
 * and receiving any modifications you may make to the source code that might serve
 * the general public.
 */

 /**
  * \file
  * Contains definitions for the SCSI device base class.
  *
  * $Id$
  *
  * X-1.2        Brian Wheeler                                   27-FEB-2008
  *      Avoid compiler warnings.
  *
  * X-1.1        Camiel Vanderhoeven                             12-JAN-2008
  *      Initial version in CVS.
  **/
#if !defined(__SCSIDEVICE__H__)
#define __SCSIDEVICE__H__

  /**
   * \brief Base class for emulated SCSI devices.
   *
   * Connects to one or more SCSI busses (class CSCSIBus) together; derived
   * SCSI devices are disks and controllers.
   **/
class CSCSIDevice
{
public:
  CSCSIDevice(void);
  virtual         ~CSCSIDevice(void);

  void            scsi_register(int busno, class CSCSIBus* with, int target);

  bool            scsi_arbitrate(int bus);
  bool            scsi_select(int bus, int target);
  virtual void    scsi_select_me(int bus);
  void            scsi_set_phase(int bus, int phase);
  int             scsi_get_phase(int bus);
  void            scsi_free(int bus);

  virtual size_t  scsi_expected_xfer_me(int bus);
  size_t          scsi_expected_xfer(int bus);

  virtual void* scsi_xfer_ptr_me(int bus, size_t bytes);
  void* scsi_xfer_ptr(int bus, size_t bytes);

  virtual void    scsi_xfer_done_me(int bus);
  void            scsi_xfer_done(int bus);
protected:
  class CSCSIBus* scsi_bus[10];           /**< SCSI busses this device connects to. Disks
                                    connect to 1 bus only, controllers can have
                                    several SCSI busses. **/
  int               scsi_initiator_id[10];  /**< Main SCSI id of this device on each of the busses. **/
};
#endif
