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/*
* Mach Operating System
* Copyright (c) 1993,1991,1990 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
/*
* HISTORY
* $Log$
* Revision 1.3 2000/03/27 04:09:08 roland
* 2000-03-26 Roland McGrath <roland@baalperazim.frob.com>
*
* * sysdeps/mach/sys/reboot.h: Include <features.h>.
* (reboot): Declare it.
*
* Revision 1.2 1998/05/29 10:19:59 drepper
* Use __ASSEMBLER__ test macro not ASSEMBLER.
*
* Revision 1.1 1993/08/03 22:25:15 roland
* entered into RCS
*
* Revision 2.8 93/03/11 13:46:40 danner
* u_long -> u_int.
* [93/03/09 danner]
*
* Revision 2.7 92/05/21 17:25:11 jfriedl
* Appended 'U' to constants that would otherwise be signed.
* [92/05/16 jfriedl]
*
* Revision 2.6 91/06/19 11:59:44 rvb
* Second byte of boothowto is flags for "startup" program.
* [91/06/18 rvb]
* Add ifndef __ASSEMBLER__ so that vax_init.s can include it.
* [91/06/11 rvb]
*
* Revision 2.5 91/05/14 17:40:11 mrt
* Correcting copyright
*
* Revision 2.4 91/02/05 17:56:48 mrt
* Changed to new Mach copyright
* [91/02/01 17:49:12 mrt]
*
* Revision 2.3 90/08/27 22:12:56 dbg
* Added definitions used by Mach Kernel: RB_DEBUGGER, RB_UNIPROC,
* RB_NOBOOTRC, RB_ALTBOOT. Moved RB_KDB to 0x04 (Mach value).
* Removed RB_RDONLY, RB_DUMP, RB_NOSYNC.
* [90/08/14 dbg]
*
*/
/*
* Copyright (c) 1982, 1986, 1988 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* @(#)reboot.h 7.5 (Berkeley) 6/27/88
*/
#ifndef _SYS_REBOOT_H_
#define _SYS_REBOOT_H_
#include <features.h>
/*
* Arguments to reboot system call.
* These are converted to switches, and passed to startup program,
* and on to init.
*/
#define RB_AUTOBOOT 0 /* flags for system auto-booting itself */
#define RB_ASKNAME 0x01 /* -a: ask for file name to reboot from */
#define RB_SINGLE 0x02 /* -s: reboot to single user only */
#define RB_KDB 0x04 /* -d: kernel debugger symbols loaded */
#define RB_HALT 0x08 /* -h: enter KDB at bootup */
/* for host_reboot(): don't reboot,
just halt */
#define RB_INITNAME 0x10 /* -i: name given for /etc/init (unused) */
#define RB_DFLTROOT 0x20 /* use compiled-in rootdev */
#define RB_NOBOOTRC 0x20 /* -b: don't run /etc/rc.boot */
#define RB_ALTBOOT 0x40 /* use /boot.old vs /boot */
#define RB_UNIPROC 0x80 /* -u: start only one processor */
#define RB_SHIFT 8 /* second byte is for ux */
#define RB_DEBUGGER 0x1000 /* for host_reboot(): enter kernel
debugger from user level */
/*
* Constants for converting boot-style device number to type,
* adaptor (uba, mba, etc), unit number and partition number.
* Type (== major device number) is in the low byte
* for backward compatibility. Except for that of the "magic
* number", each mask applies to the shifted value.
* Format:
* (4) (4) (4) (4) (8) (8)
* --------------------------------
* |MA | AD| CT| UN| PART | TYPE |
* --------------------------------
*/
#define B_ADAPTORSHIFT 24
#define B_ADAPTORMASK 0x0f
#define B_ADAPTOR(val) (((val) >> B_ADAPTORSHIFT) & B_ADAPTORMASK)
#define B_CONTROLLERSHIFT 20
#define B_CONTROLLERMASK 0xf
#define B_CONTROLLER(val) (((val)>>B_CONTROLLERSHIFT) & B_CONTROLLERMASK)
#define B_UNITSHIFT 16
#define B_UNITMASK 0xf
#define B_UNIT(val) (((val) >> B_UNITSHIFT) & B_UNITMASK)
#define B_PARTITIONSHIFT 8
#define B_PARTITIONMASK 0xff
#define B_PARTITION(val) (((val) >> B_PARTITIONSHIFT) & B_PARTITIONMASK)
#define B_TYPESHIFT 0
#define B_TYPEMASK 0xff
#define B_TYPE(val) (((val) >> B_TYPESHIFT) & B_TYPEMASK)
#define B_MAGICMASK ((u_int)0xf0000000U)
#define B_DEVMAGIC ((u_int)0xa0000000U)
#define MAKEBOOTDEV(type, adaptor, controller, unit, partition) \
(((type) << B_TYPESHIFT) | ((adaptor) << B_ADAPTORSHIFT) | \
((controller) << B_CONTROLLERSHIFT) | ((unit) << B_UNITSHIFT) | \
((partition) << B_PARTITIONSHIFT) | B_DEVMAGIC)
#ifdef KERNEL
#ifndef __ASSEMBLER__
extern int boothowto;
#endif /* __ASSEMBLER__ */
#endif
__BEGIN_DECLS
/* Reboot or halt the system. */
extern int reboot (int __howto) __THROW;
__END_DECLS
#endif /* _SYS_REBOOT_H_ */
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