]> git.saurik.com Git - apple/boot.git/blame - i386/libsaio/bios.h
boot-132.tar.gz
[apple/boot.git] / i386 / libsaio / bios.h
CommitLineData
14c7c974 1/*
57c72a9a 2 * Copyright (c) 1999-2003 Apple Computer, Inc. All rights reserved.
14c7c974
A
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
57c72a9a 6 * Portions Copyright (c) 1999-2003 Apple Computer, Inc. All Rights
4f6e3300
A
7 * Reserved. This file contains Original Code and/or Modifications of
8 * Original Code as defined in and that are subject to the Apple Public
57c72a9a 9 * Source License Version 2.0 (the "License"). You may not use this file
4f6e3300
A
10 * except in compliance with the License. Please obtain a copy of the
11 * License at http://www.apple.com/publicsource and read it before using
12 * this file.
14c7c974
A
13 *
14 * The Original Code and all software distributed under the License are
4f6e3300 15 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14c7c974
A
16 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
4f6e3300
A
18 * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the
19 * License for the specific language governing rights and limitations
20 * under the License.
14c7c974
A
21 *
22 * @APPLE_LICENSE_HEADER_END@
23 */
24/*
25 * Copyright 1994 NeXT Computer, Inc.
26 * All rights reserved.
27 */
28
29#ifndef __LIBSAIO_BIOS_H
30#define __LIBSAIO_BIOS_H
31
f083c6c3
A
32#include <pexpert/i386/boot.h>
33
14c7c974
A
34typedef union {
35 unsigned int rx;
36 unsigned short rr;
37 struct {
38 unsigned char l;
39 unsigned char h;
40 } r;
41} machineRegister_t;
42
43typedef struct {
44 unsigned short cf :1;
45 unsigned short :1;
46 unsigned short pf :1;
47 unsigned short :1;
48 unsigned short af :1;
49 unsigned short :1;
50 unsigned short zf :1;
51 unsigned short sf :1;
52 unsigned short tf :1;
53 unsigned short _if :1;
54 unsigned short df :1;
55 unsigned short of :1;
56 unsigned short iopl:2;
57 unsigned short nt :1;
58} machineFlags_t;
59
60typedef struct {
61 unsigned int intno;
62 machineRegister_t eax;
63 machineRegister_t ebx;
64 machineRegister_t ecx;
65 machineRegister_t edx;
66 machineRegister_t edi;
67 machineRegister_t esi;
68 machineRegister_t ebp;
69 unsigned short cs;
70 unsigned short ds;
71 unsigned short es;
72 machineFlags_t flags;
73} biosBuf_t;
74
75b89a82 75#define EBIOS_FIXED_DISK_ACCESS 0x01
f083c6c3 76#define EBIOS_LOCKING_ACCESS 0x02
75b89a82 77#define EBIOS_ENHANCED_DRIVE_INFO 0x04
f083c6c3
A
78
79#define BASE_HD_DRIVE 0x80
75b89a82 80
bba600dd
A
81#if 0
82/*
83 * ACPI defined memory range types.
84 */
85enum {
86 kMemoryRangeUsable = 1, // RAM usable by the OS.
87 kMemoryRangeReserved = 2, // Reserved. (Do not use)
88 kMemoryRangeACPI = 3, // ACPI tables. Can be reclaimed.
89 kMemoryRangeNVS = 4, // ACPI NVS memory. (Do not use)
90
91 /* Undefined types should be treated as kMemoryRangeReserved */
92};
93#endif
94
95/*
96 * Memory range descriptor.
97 */
98typedef struct MemoryRange {
99 unsigned long long base; // 64-bit base address
100 unsigned long long length; // 64-bit length in bytes
101 unsigned long type; // type of memory range
102 unsigned long reserved;
103} MemoryRange;
104
14c7c974 105#endif /* !__LIBSAIO_BIOS_H */