1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
27/*	  All Rights Reserved  	*/
28
29#ifndef _SYS_MKDEV_H
30#define	_SYS_MKDEV_H
31
32#include <sys/types.h>
33
34#ifdef	__cplusplus
35extern "C" {
36#endif
37
38/*
39 * SVR3/Pre-EFT device number constants.
40 */
41#define	ONBITSMAJOR	7	/* # of SVR3 major device bits */
42#define	ONBITSMINOR	8	/* # of SVR3 minor device bits */
43#define	OMAXMAJ		0x7f	/* SVR3 max major value */
44#define	OMAXMIN		0xff	/* SVR3 max major value */
45
46/*
47 * 32-bit Solaris device major/minor sizes.
48 */
49#define	NBITSMAJOR32	14
50#define	NBITSMINOR32	18
51#define	MAXMAJ32	0x3ffful	/* SVR4 max major value */
52#define	MAXMIN32	0x3fffful	/* SVR4 max minor value */
53
54#define	NBITSMAJOR64	32	/* # of major device bits in 64-bit Solaris */
55#define	NBITSMINOR64	32	/* # of minor device bits in 64-bit Solaris */
56
57#ifdef _LP64
58
59#define	MAXMAJ64	0xfffffffful	/* max major value */
60#define	MAXMIN64	0xfffffffful	/* max minor value */
61
62#define	NBITSMAJOR	NBITSMAJOR64
63#define	NBITSMINOR	NBITSMINOR64
64#define	MAXMAJ		MAXMAJ64
65#define	MAXMIN		MAXMIN64
66
67#else /* !_LP64 */
68
69#define	NBITSMAJOR	NBITSMAJOR32
70#define	NBITSMINOR	NBITSMINOR32
71#define	MAXMAJ		MAXMAJ32
72#define	MAXMIN		MAXMIN32
73
74#endif /* !_LP64 */
75
76#if !defined(_KERNEL)
77
78/*
79 * Undefine sysmacros.h device macros.
80 */
81#undef makedev
82#undef major
83#undef minor
84
85#if defined(__STDC__)
86
87extern dev_t makedev(const major_t, const minor_t);
88extern major_t major(const dev_t);
89extern minor_t minor(const dev_t);
90extern dev_t __makedev(const int, const major_t, const minor_t);
91extern major_t __major(const int, const dev_t);
92extern minor_t __minor(const int, const dev_t);
93
94#else
95
96extern dev_t makedev();
97extern major_t major();
98extern minor_t minor();
99extern dev_t __makedev();
100extern major_t __major();
101extern minor_t __minor();
102
103#endif	/* defined(__STDC__) */
104
105#define	OLDDEV 0	/* old device format */
106#define	NEWDEV 1	/* new device format */
107
108#define	makedev(maj, min)	(__makedev(NEWDEV, maj, min))
109#define	major(dev)		(__major(NEWDEV, dev))
110#define	minor(dev)		(__minor(NEWDEV, dev))
111
112#endif	/* !defined(_KERNEL) */
113
114#ifdef	__cplusplus
115}
116#endif
117
118#endif	/* _SYS_MKDEV_H */
119