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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