/*
 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * Copyright 1994 NeXT Computer, Inc.
 * All rights reserved.
 */

#ifndef __LIBSAIO_BIOS_H
#define __LIBSAIO_BIOS_H

#include <pexpert/i386/boot.h>

typedef union {
    unsigned int      rx;
    unsigned short    rr;
    struct {
        unsigned char l;
        unsigned char h;
    } r;
} machineRegister_t;

typedef struct {
    unsigned short cf  :1;
    unsigned short     :1;
    unsigned short pf  :1;
    unsigned short     :1;
    unsigned short af  :1;
    unsigned short     :1;
    unsigned short zf  :1;
    unsigned short sf  :1;
    unsigned short tf  :1;
    unsigned short _if :1;
    unsigned short df  :1;
    unsigned short of  :1;
    unsigned short iopl:2;
    unsigned short nt  :1;
} machineFlags_t;

typedef struct {
    unsigned int      intno;
    machineRegister_t eax;
    machineRegister_t ebx;
    machineRegister_t ecx;
    machineRegister_t edx;
    machineRegister_t edi;
    machineRegister_t esi;
    machineRegister_t ebp;
    unsigned short    cs;
    unsigned short    ds;
    unsigned short    es;
    machineFlags_t    flags;
} biosBuf_t;

#define EBIOS_FIXED_DISK_ACCESS   0x01
#define EBIOS_LOCKING_ACCESS      0x02
#define EBIOS_ENHANCED_DRIVE_INFO 0x04

#define BASE_HD_DRIVE 0x80

#endif /* !__LIBSAIO_BIOS_H */
