xref: /onnv-gate/usr/src/uts/common/sys/mkdev.h (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28*0Sstevel@tonic-gate /*	  All Rights Reserved  	*/
29*0Sstevel@tonic-gate 
30*0Sstevel@tonic-gate #ifndef _SYS_MKDEV_H
31*0Sstevel@tonic-gate #define	_SYS_MKDEV_H
32*0Sstevel@tonic-gate 
33*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
34*0Sstevel@tonic-gate 
35*0Sstevel@tonic-gate #include <sys/types.h>
36*0Sstevel@tonic-gate 
37*0Sstevel@tonic-gate #ifdef	__cplusplus
38*0Sstevel@tonic-gate extern "C" {
39*0Sstevel@tonic-gate #endif
40*0Sstevel@tonic-gate 
41*0Sstevel@tonic-gate /*
42*0Sstevel@tonic-gate  * SVR3/Pre-EFT device number constants.
43*0Sstevel@tonic-gate  */
44*0Sstevel@tonic-gate #define	ONBITSMAJOR	7	/* # of SVR3 major device bits */
45*0Sstevel@tonic-gate #define	ONBITSMINOR	8	/* # of SVR3 minor device bits */
46*0Sstevel@tonic-gate #define	OMAXMAJ		0x7f	/* SVR3 max major value */
47*0Sstevel@tonic-gate #define	OMAXMIN		0xff	/* SVR3 max major value */
48*0Sstevel@tonic-gate 
49*0Sstevel@tonic-gate /*
50*0Sstevel@tonic-gate  * 32-bit Solaris device major/minor sizes.
51*0Sstevel@tonic-gate  */
52*0Sstevel@tonic-gate #define	NBITSMAJOR32	14
53*0Sstevel@tonic-gate #define	NBITSMINOR32	18
54*0Sstevel@tonic-gate #define	MAXMAJ32	0x3ffful	/* SVR4 max major value */
55*0Sstevel@tonic-gate #define	MAXMIN32	0x3fffful	/* SVR4 max minor value */
56*0Sstevel@tonic-gate 
57*0Sstevel@tonic-gate #ifdef _LP64
58*0Sstevel@tonic-gate 
59*0Sstevel@tonic-gate #define	NBITSMAJOR64	32	/* # of major device bits in 64-bit Solaris */
60*0Sstevel@tonic-gate #define	NBITSMINOR64	32	/* # of minor device bits in 64-bit Solaris */
61*0Sstevel@tonic-gate #define	MAXMAJ64	0xfffffffful	/* max major value */
62*0Sstevel@tonic-gate #define	MAXMIN64	0xfffffffful	/* max minor value */
63*0Sstevel@tonic-gate 
64*0Sstevel@tonic-gate #define	NBITSMAJOR	NBITSMAJOR64
65*0Sstevel@tonic-gate #define	NBITSMINOR	NBITSMINOR64
66*0Sstevel@tonic-gate #define	MAXMAJ		MAXMAJ64
67*0Sstevel@tonic-gate #define	MAXMIN		MAXMIN64
68*0Sstevel@tonic-gate 
69*0Sstevel@tonic-gate #else /* !_LP64 */
70*0Sstevel@tonic-gate 
71*0Sstevel@tonic-gate #define	NBITSMAJOR	NBITSMAJOR32
72*0Sstevel@tonic-gate #define	NBITSMINOR	NBITSMINOR32
73*0Sstevel@tonic-gate #define	MAXMAJ		MAXMAJ32
74*0Sstevel@tonic-gate #define	MAXMIN		MAXMIN32
75*0Sstevel@tonic-gate 
76*0Sstevel@tonic-gate #endif /* !_LP64 */
77*0Sstevel@tonic-gate 
78*0Sstevel@tonic-gate #if !defined(_KERNEL)
79*0Sstevel@tonic-gate 
80*0Sstevel@tonic-gate /*
81*0Sstevel@tonic-gate  * Undefine sysmacros.h device macros.
82*0Sstevel@tonic-gate  */
83*0Sstevel@tonic-gate #undef makedev
84*0Sstevel@tonic-gate #undef major
85*0Sstevel@tonic-gate #undef minor
86*0Sstevel@tonic-gate 
87*0Sstevel@tonic-gate #if defined(__STDC__)
88*0Sstevel@tonic-gate 
89*0Sstevel@tonic-gate extern dev_t makedev(const major_t, const minor_t);
90*0Sstevel@tonic-gate extern major_t major(const dev_t);
91*0Sstevel@tonic-gate extern minor_t minor(const dev_t);
92*0Sstevel@tonic-gate extern dev_t __makedev(const int, const major_t, const minor_t);
93*0Sstevel@tonic-gate extern major_t __major(const int, const dev_t);
94*0Sstevel@tonic-gate extern minor_t __minor(const int, const dev_t);
95*0Sstevel@tonic-gate 
96*0Sstevel@tonic-gate #else
97*0Sstevel@tonic-gate 
98*0Sstevel@tonic-gate extern dev_t makedev();
99*0Sstevel@tonic-gate extern major_t major();
100*0Sstevel@tonic-gate extern minor_t minor();
101*0Sstevel@tonic-gate extern dev_t __makedev();
102*0Sstevel@tonic-gate extern major_t __major();
103*0Sstevel@tonic-gate extern minor_t __minor();
104*0Sstevel@tonic-gate 
105*0Sstevel@tonic-gate #endif	/* defined(__STDC__) */
106*0Sstevel@tonic-gate 
107*0Sstevel@tonic-gate #define	OLDDEV 0	/* old device format */
108*0Sstevel@tonic-gate #define	NEWDEV 1	/* new device format */
109*0Sstevel@tonic-gate 
110*0Sstevel@tonic-gate #define	makedev(maj, min)	(__makedev(NEWDEV, maj, min))
111*0Sstevel@tonic-gate #define	major(dev)		(__major(NEWDEV, dev))
112*0Sstevel@tonic-gate #define	minor(dev)		(__minor(NEWDEV, dev))
113*0Sstevel@tonic-gate 
114*0Sstevel@tonic-gate #endif	/* !defined(_KERNEL) */
115*0Sstevel@tonic-gate 
116*0Sstevel@tonic-gate #ifdef	__cplusplus
117*0Sstevel@tonic-gate }
118*0Sstevel@tonic-gate #endif
119*0Sstevel@tonic-gate 
120*0Sstevel@tonic-gate #endif	/* _SYS_MKDEV_H */
121