reboot.h revision 1.1 1 1.1 cgd /*
2 1.1 cgd * Copyright (c) 1982, 1986, 1988 Regents of the University of California.
3 1.1 cgd * All rights reserved.
4 1.1 cgd *
5 1.1 cgd * Redistribution and use in source and binary forms, with or without
6 1.1 cgd * modification, are permitted provided that the following conditions
7 1.1 cgd * are met:
8 1.1 cgd * 1. Redistributions of source code must retain the above copyright
9 1.1 cgd * notice, this list of conditions and the following disclaimer.
10 1.1 cgd * 2. Redistributions in binary form must reproduce the above copyright
11 1.1 cgd * notice, this list of conditions and the following disclaimer in the
12 1.1 cgd * documentation and/or other materials provided with the distribution.
13 1.1 cgd * 3. All advertising materials mentioning features or use of this software
14 1.1 cgd * must display the following acknowledgement:
15 1.1 cgd * This product includes software developed by the University of
16 1.1 cgd * California, Berkeley and its contributors.
17 1.1 cgd * 4. Neither the name of the University nor the names of its contributors
18 1.1 cgd * may be used to endorse or promote products derived from this software
19 1.1 cgd * without specific prior written permission.
20 1.1 cgd *
21 1.1 cgd * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 1.1 cgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 1.1 cgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 1.1 cgd * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 1.1 cgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 1.1 cgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 1.1 cgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 1.1 cgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 1.1 cgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 1.1 cgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 1.1 cgd * SUCH DAMAGE.
32 1.1 cgd *
33 1.1 cgd * @(#)reboot.h 7.6 (Berkeley) 6/28/90
34 1.1 cgd */
35 1.1 cgd
36 1.1 cgd /*
37 1.1 cgd * Arguments to reboot system call.
38 1.1 cgd * These are passed to boot program in r11,
39 1.1 cgd * and on to init.
40 1.1 cgd */
41 1.1 cgd #define RB_AUTOBOOT 0 /* flags for system auto-booting itself */
42 1.1 cgd
43 1.1 cgd #define RB_ASKNAME 0x01 /* ask for file name to reboot from */
44 1.1 cgd #define RB_SINGLE 0x02 /* reboot to single user only */
45 1.1 cgd #define RB_NOSYNC 0x04 /* dont sync before reboot */
46 1.1 cgd #define RB_HALT 0x08 /* don't reboot, just halt */
47 1.1 cgd #define RB_INITNAME 0x10 /* name given for /etc/init (unused) */
48 1.1 cgd #define RB_DFLTROOT 0x20 /* use compiled-in rootdev */
49 1.1 cgd #define RB_KDB 0x40 /* give control to kernel debugger */
50 1.1 cgd #define RB_RDONLY 0x80 /* mount root fs read-only */
51 1.1 cgd #define RB_DUMP 0x100 /* dump kernel memory before reboot */
52 1.1 cgd
53 1.1 cgd /*
54 1.1 cgd * Constants for converting boot-style device number to type,
55 1.1 cgd * adaptor (uba, mba, etc), unit number and partition number.
56 1.1 cgd * Type (== major device number) is in the low byte
57 1.1 cgd * for backward compatibility. Except for that of the "magic
58 1.1 cgd * number", each mask applies to the shifted value.
59 1.1 cgd * Format:
60 1.1 cgd * (4) (4) (4) (4) (8) (8)
61 1.1 cgd * --------------------------------
62 1.1 cgd * |MA | AD| CT| UN| PART | TYPE |
63 1.1 cgd * --------------------------------
64 1.1 cgd */
65 1.1 cgd #define B_ADAPTORSHIFT 24
66 1.1 cgd #define B_ADAPTORMASK 0x0f
67 1.1 cgd #define B_ADAPTOR(val) (((val) >> B_ADAPTORSHIFT) & B_ADAPTORMASK)
68 1.1 cgd #define B_CONTROLLERSHIFT 20
69 1.1 cgd #define B_CONTROLLERMASK 0xf
70 1.1 cgd #define B_CONTROLLER(val) (((val)>>B_CONTROLLERSHIFT) & B_CONTROLLERMASK)
71 1.1 cgd #define B_UNITSHIFT 16
72 1.1 cgd #define B_UNITMASK 0xf
73 1.1 cgd #define B_UNIT(val) (((val) >> B_UNITSHIFT) & B_UNITMASK)
74 1.1 cgd #define B_PARTITIONSHIFT 8
75 1.1 cgd #define B_PARTITIONMASK 0xff
76 1.1 cgd #define B_PARTITION(val) (((val) >> B_PARTITIONSHIFT) & B_PARTITIONMASK)
77 1.1 cgd #define B_TYPESHIFT 0
78 1.1 cgd #define B_TYPEMASK 0xff
79 1.1 cgd #define B_TYPE(val) (((val) >> B_TYPESHIFT) & B_TYPEMASK)
80 1.1 cgd
81 1.1 cgd #define B_MAGICMASK ((u_long)0xf0000000)
82 1.1 cgd #define B_DEVMAGIC ((u_long)0xa0000000)
83 1.1 cgd
84 1.1 cgd #define MAKEBOOTDEV(type, adaptor, controller, unit, partition) \
85 1.1 cgd (((type) << B_TYPESHIFT) | ((adaptor) << B_ADAPTORSHIFT) | \
86 1.1 cgd ((controller) << B_CONTROLLERSHIFT) | ((unit) << B_UNITSHIFT) | \
87 1.1 cgd ((partition) << B_PARTITIONSHIFT) | B_DEVMAGIC)
88