/* ES40 emulator.
 * Copyright (C) 2007-2008 by the ES40 Emulator Project
 *
 * WWW    : http://es40.org
 * E-mail : camiel@es40.org
 *
 * 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 disk controller base class.
  *
  * $Id$
  *
  * X-1.15       Camiel Vanderhoeven                             29-APR-2008
  *      CDiskController is no longer a CPCIDevice. devices that are both
  *      should multiple inherit both.
  *
  * X-1.14       Camiel Vanderhoeven                             14-MAR-2008
  *      Formatting.
  *
  * X-1.13       Camiel Vanderhoeven                             14-MAR-2008
  *   1. More meaningful exceptions replace throwing (int) 1.
  *   2. U64 macro replaces X64 macro.
  *
  * X-1.12       Camiel Vanderhoeven                             14-JAN-2008
  *      Removed unreferenced variable.
  *
  * X-1.11       Brian Wheeler                                   13-JAN-2008
  *      Avoid deleting Disk devices twice.
  *
  * X-1.9        Camiel Vanderhoeven                             12-JAN-2008
  *      Made register_disk void and virtual.
  *
  * X-1.8        Camiel Vanderhoeven                             29-DEC-2007
  *      Fix memory-leak.
  *
  * X-1.7        Camiel Vanderhoeven                             28-DEC-2007
  *      Keep the compiler happy.
  *
  * X-1.6        Camiel Vanderhoeven                             18-DEC-2007
  *      Initialize pointers to 0 in constructor. (doh!)
  *
  * X-1.5        Camiel Vanderhoeven                             17-DEC-2007
  *      Removed excessive whitespace.
  *
  * X-1.4        Brian Wheeler                                   16-DEC-2007
  *      Added newline at end of file.
  *
  * X-1.3        Camiel Vanderhoeven                             16-DEC-2007
  *      Include Disk.h, so children's destructors can be called.
  *
  * X-1.2        Camiel Vanderhoeven                             14-DEC-2007
  *      Delete children upon destruction.
  *
  * X-1.1        Camiel Vanderhoeven                             12-DEC-2007
  *      Initial version in CVS.
  **/
#include "StdAfx.h"
#include "DiskController.h"
#include "Disk.h"

CDiskController::CDiskController(int num_busses, int num_devices)
{
	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];
}