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+/***************************************************************************
+
+ harddisk.h
+
+ Generic MAME hard disk implementation, with differencing files
+
+****************************************************************************
+
+ Copyright Aaron Giles
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are
+ met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in
+ the documentation and/or other materials provided with the
+ distribution.
+ * Neither the name 'MAME' nor the names of its contributors may be
+ used to endorse or promote products derived from this software
+ without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY AARON GILES ''AS IS'' AND ANY EXPRESS OR
+ IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL AARON GILES BE LIABLE FOR ANY DIRECT,
+ INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+***************************************************************************/
+
+#pragma once
+
+#ifndef __HARDDISK_H__
+#define __HARDDISK_H__
+
+#include "osdcore.h"
+#include "chd.h"
+
+
+/***************************************************************************
+ TYPE DEFINITIONS
+***************************************************************************/
+
+typedef struct _hard_disk_file hard_disk_file;
+
+typedef struct _hard_disk_info hard_disk_info;
+struct _hard_disk_info
+{
+ UINT32 cylinders;
+ UINT32 heads;
+ UINT32 sectors;
+ UINT32 sectorbytes;
+};
+
+
+
+/***************************************************************************
+ FUNCTION PROTOTYPES
+***************************************************************************/
+
+hard_disk_file *hard_disk_open(chd_file *chd);
+void hard_disk_close(hard_disk_file *file);
+
+chd_file *hard_disk_get_chd(hard_disk_file *file);
+hard_disk_info *hard_disk_get_info(hard_disk_file *file);
+
+UINT32 hard_disk_read(hard_disk_file *file, UINT32 lbasector, void *buffer);
+UINT32 hard_disk_write(hard_disk_file *file, UINT32 lbasector, const void *buffer);
+
+#endif /* __HARDDISK_H__ */