/
reboot.h
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/
reboot.h
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/*
* Copyright (c) 1982, 1986, 1988, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)reboot.h 8.3 (Berkeley) 12/13/94
* $Id: reboot.h,v 1.17 1998/03/08 15:04:20 msmith Exp $
*/
#ifndef _SYS_REBOOT_H_
#define _SYS_REBOOT_H_
/*
* Arguments to reboot system call. These are passed to
* the boot program and on to init.
*/
#define RB_AUTOBOOT 0 /* flags for system auto-booting itself */
#define RB_ASKNAME 0x001 /* ask for file name to reboot from */
#define RB_SINGLE 0x002 /* reboot to single user only */
#define RB_NOSYNC 0x004 /* dont sync before reboot */
#define RB_HALT 0x008 /* don't reboot, just halt */
#define RB_INITNAME 0x010 /* name given for /etc/init (unused) */
#define RB_DFLTROOT 0x020 /* use compiled-in rootdev */
#define RB_KDB 0x040 /* give control to kernel debugger */
#define RB_RDONLY 0x080 /* mount root fs read-only */
#define RB_DUMP 0x100 /* dump kernel memory before reboot */
#define RB_MINIROOT 0x200 /* mini-root present in memory at boot time */
#define RB_CONFIG 0x400 /* invoke user configuration routing */
#define RB_VERBOSE 0x800 /* print all potentially useful info */
#define RB_SERIAL 0x1000 /* user serial port as console */
#define RB_CDROM 0x2000 /* use cdrom as root */
#define RB_POWEROFF 0x4000 /* if you can, turn the power off */
#define RB_GDB 0x8000 /* use GDB remote debugger instead of DDB */
#define RB_MUTE 0x10000 /* Come up with the console muted */
#define RB_SELFTEST 0x20000 /* don't boot to normal operation, do selftest */
#define RB_BOOTINFO 0x80000000 /* have `struct bootinfo *' arg */
/*
* 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_SLICESHIFT 20
#define B_SLICEMASK 0xff
#define B_SLICE(val) (((val)>>B_SLICESHIFT) & B_SLICEMASK)
#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 0xf0000000
#define B_DEVMAGIC 0xa0000000
#define MAKEBOOTDEV(type, adaptor, controller, unit, partition) \
(((type) << B_TYPESHIFT) | ((adaptor) << B_ADAPTORSHIFT) | \
((controller) << B_CONTROLLERSHIFT) | ((unit) << B_UNITSHIFT) | \
((partition) << B_PARTITIONSHIFT) | B_DEVMAGIC)
#endif