Project

General

Profile

Statistics
| Revision:

root / lab4 / .minix-src / include / sys / reboot.h @ 13

History | View | Annotate | Download (4.8 KB)

1
/*        $NetBSD: reboot.h,v 1.25 2007/12/25 18:33:48 perry Exp $        */
2

    
3
/*
4
 * Copyright (c) 1982, 1986, 1988, 1993, 1994
5
 *        The Regents of the University of California.  All rights reserved.
6
 *
7
 * Redistribution and use in source and binary forms, with or without
8
 * modification, are permitted provided that the following conditions
9
 * are met:
10
 * 1. Redistributions of source code must retain the above copyright
11
 *    notice, this list of conditions and the following disclaimer.
12
 * 2. Redistributions in binary form must reproduce the above copyright
13
 *    notice, this list of conditions and the following disclaimer in the
14
 *    documentation and/or other materials provided with the distribution.
15
 * 3. Neither the name of the University nor the names of its contributors
16
 *    may be used to endorse or promote products derived from this software
17
 *    without specific prior written permission.
18
 *
19
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29
 * SUCH DAMAGE.
30
 *
31
 *        @(#)reboot.h        8.3 (Berkeley) 12/13/94
32
 */
33

    
34
#ifndef _SYS_REBOOT_H_
35
#define _SYS_REBOOT_H_
36

    
37
/*
38
 * Arguments to reboot system call.  These are passed to the boot program,
39
 * and then on to init.
40
 */
41
#define        RB_AUTOBOOT        0        /* flags for system auto-booting itself */
42

    
43
#define        RB_ASKNAME        0x00000001        /* ask for file name to reboot from */
44
#define        RB_SINGLE        0x00000002        /* reboot to single user only */
45
#define        RB_NOSYNC        0x00000004        /* dont sync before reboot */
46
#define        RB_HALT                0x00000008        /* don't reboot, just halt */
47
#define        RB_INITNAME        0x00000010        /* name given for /etc/init (unused) */
48
#define        __RB_UNUSED1        0x00000020        /* was RB_DFLTROOT, obsolete */
49
#define        RB_KDB                0x00000040        /* give control to kernel debugger */
50
#define        RB_RDONLY        0x00000080        /* mount root fs read-only */
51
#define        RB_DUMP                0x00000100        /* dump kernel memory before reboot */
52
#define        RB_MINIROOT        0x00000200        /* mini-root present in memory */
53
#define        RB_STRING        0x00000400        /* use provided bootstr */
54
#define        RB_POWERDOWN        (RB_HALT|0x800) /* turn power off (or at least halt) */
55
#define RB_USERCONF        0x00001000        /* change configured devices */
56

    
57
/*
58
 * Extra autoboot flags (passed by boot prog to kernel). See also
59
 * macros bootverbose, bootquiet in <sys/systm.h>.
60
 */
61
#define        AB_NORMAL        0x00000000        /* boot normally (default) */
62
#define        AB_QUIET        0x00010000         /* boot quietly */
63
#define        AB_VERBOSE        0x00020000        /* boot verbosely */
64
#define        AB_SILENT        0x00040000        /* boot silently */
65
#define        AB_DEBUG        0x00080000        /* boot with debug messages */
66

    
67
/*
68
 * The top 4 bits are architecture specific and are used to
69
 * pass information between the bootblocks and the machine
70
 * initialization code.
71
 */
72
#define        RB_MD1                0x10000000
73
#define        RB_MD2                0x20000000
74
#define        RB_MD3                0x40000000
75
#define        RB_MD4                0x80000000
76

    
77
/*
78
 * Constants for converting boot-style device number to type,
79
 * adaptor (uba, mba, etc), unit number and partition number.
80
 * Type (== major device number) is in the low byte
81
 * for backward compatibility.  Except for that of the "magic
82
 * number", each mask applies to the shifted value.
83
 * Format:
84
 *         (4) (4) (4) (4)  (8)     (8)
85
 *        --------------------------------
86
 *        |MA | AD| CT| UN| PART  | TYPE |
87
 *        --------------------------------
88
 */
89
#define        B_ADAPTORSHIFT                24
90
#define        B_ADAPTORMASK                0x0f
91
#define        B_ADAPTOR(val)                (((val) >> B_ADAPTORSHIFT) & B_ADAPTORMASK)
92
#define B_CONTROLLERSHIFT        20
93
#define B_CONTROLLERMASK        0xf
94
#define        B_CONTROLLER(val)        (((val)>>B_CONTROLLERSHIFT) & B_CONTROLLERMASK)
95
#define B_UNITSHIFT                16
96
#define B_UNITMASK                0xf
97
#define        B_UNIT(val)                (((val) >> B_UNITSHIFT) & B_UNITMASK)
98
#define B_PARTITIONSHIFT        8
99
#define B_PARTITIONMASK                0xff
100
#define        B_PARTITION(val)        (((val) >> B_PARTITIONSHIFT) & B_PARTITIONMASK)
101
#define        B_TYPESHIFT                0
102
#define        B_TYPEMASK                0xff
103
#define        B_TYPE(val)                (((val) >> B_TYPESHIFT) & B_TYPEMASK)
104

    
105
#define        B_MAGICMASK        0xf0000000
106
#define        B_DEVMAGIC        0xa0000000
107

    
108
#define MAKEBOOTDEV(type, adaptor, controller, unit, partition) \
109
        (((type) << B_TYPESHIFT) | ((adaptor) << B_ADAPTORSHIFT) | \
110
        ((controller) << B_CONTROLLERSHIFT) | ((unit) << B_UNITSHIFT) | \
111
        ((partition) << B_PARTITIONSHIFT) | B_DEVMAGIC)
112

    
113
#ifdef _KERNEL
114

    
115
__BEGIN_DECLS
116

    
117
void        cpu_reboot(int, char *)
118
    __dead;
119

    
120
__END_DECLS
121

    
122
#endif /* _KERNEL */
123

    
124
#endif /* !_SYS_REBOOT_H_ */