DiskController.cpp

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/* 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.
 */

#include "StdAfx.h"
#include "DiskController.h"
#include "Disk.h"

CDiskController::CDiskController(CConfigurator*  cfg, CSystem*  c, int pcibus,
                                 int pcidev, int num_busses, int num_devices) : CPCIDevice(cfg, c, pcibus, pcidev)
{
  num_bus = num_busses;
  num_dev = num_devices;

  disks = (CDisk**) calloc(num_bus * num_dev, sizeof(CDisk *));
}

CDiskController::~CDiskController(void)
{
  free(disks);
}

void CDiskController::register_disk(class CDisk* dsk, int bus, int dev)
{
  if(bus >= num_bus)
    FAILURE(Configuration, "Can't register disk: bus number out of range");
  if(dev >= num_dev)
    FAILURE(Configuration, "Can't register disk: device number out of range");

  disks[bus * num_bus + dev] = dsk;
}

class CDisk*  CDiskController::get_disk(int bus, int dev)
{
    if(bus >= num_bus)
      return 0;
    if(dev >= num_dev)
      return 0;

    return disks[bus * num_bus + dev];
}

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