sys/sys/reboot.h

   1 /*
   2  * Copyright (c) 1982, 1986, 1988, 1993, 1994
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  *      @(#)reboot.h    8.3 (Berkeley) 12/13/94
  34  * $FreeBSD: src/sys/sys/reboot.h,v 1.18.2.1 2001/12/17 18:44:43 guido Exp $
  35  * $DragonFly: src/sys/sys/reboot.h,v 1.4 2004/06/25 05:37:59 dillon Exp $
  36  */
  37
  38 #ifndef _SYS_REBOOT_H_
  39 #define _SYS_REBOOT_H_
  40
  41 /*
  42  * Arguments to reboot system call.  These are passed to
  43  * the boot program and on to init.
  44  *
  45  * Note: if neither MUTE, SERIAL, or VIDEO is set, multi-console mode is
  46  * assumed.
  47  */
  48 #define RB_AUTOBOOT     0       /* flags for system auto-booting itself */
  49
  50 #define RB_ASKNAME      0x001   /* ask for file name to reboot from */
  51 #define RB_SINGLE       0x002   /* reboot to single user only */
  52 #define RB_NOSYNC       0x004   /* dont sync before reboot */
  53 #define RB_HALT         0x008   /* don't reboot, just halt */
  54 #define RB_INITNAME     0x010   /* name given for /etc/init (unused) */
  55 #define RB_DFLTROOT     0x020   /* use compiled-in rootdev */
  56 #define RB_KDB          0x040   /* give control to kernel debugger */
  57 #define RB_RDONLY       0x080   /* mount root fs read-only */
  58 #define RB_DUMP         0x100   /* dump kernel memory before reboot */
  59 #define RB_MINIROOT     0x200   /* mini-root present in memory at boot time */
  60 #define RB_CONFIG       0x400   /* invoke user configuration routing */
  61 #define RB_VERBOSE      0x800   /* print all potentially useful info */
  62 #define RB_SERIAL       0x1000  /* user serial port as console */
  63 #define RB_CDROM        0x2000  /* use cdrom as root */
  64 #define RB_POWEROFF     0x4000  /* if you can, turn the power off */
  65 #define RB_GDB          0x8000  /* use GDB remote debugger instead of DDB */
  66 #define RB_MUTE         0x10000 /* Come up with the console muted */
  67 #define RB_SELFTEST     0x20000 /* don't boot to normal operation, do selftest */
  68 #define RB_PAUSE        0x40000 /* pause after each output line during probe */
  69
  70 #define RB_VIDEO        0x20000000      /* use video console */
  71 #define RB_BOOTINFO     0x80000000      /* have `struct bootinfo *' arg */
  72
  73 /*
  74  * Constants for converting boot-style device number to type,
  75  * adaptor (uba, mba, etc), unit number and partition number.
  76  * Type (== major device number) is in the low byte
  77  * for backward compatibility.  Except for that of the "magic
  78  * number", each mask applies to the shifted value.
  79  * Format:
  80  *       (4) (4) (4) (4)  (8)     (8)
  81  *      --------------------------------
  82  *      |MA | AD| CT| UN| PART  | TYPE |
  83  *      --------------------------------
  84  */
  85 #define B_ADAPTORSHIFT          24
  86 #define B_ADAPTORMASK           0x0f
  87 #define B_ADAPTOR(val)          (((val) >> B_ADAPTORSHIFT) & B_ADAPTORMASK)
  88 #define B_CONTROLLERSHIFT       20
  89 #define B_CONTROLLERMASK        0xf
  90 #define B_CONTROLLER(val)       (((val)>>B_CONTROLLERSHIFT) & B_CONTROLLERMASK)
  91 #define B_SLICESHIFT            20
  92 #define B_SLICEMASK             0xff
  93 #define B_SLICE(val)            (((val)>>B_SLICESHIFT) & B_SLICEMASK)
  94 #define B_UNITSHIFT             16
  95 #define B_UNITMASK              0xf
  96 #define B_UNIT(val)             (((val) >> B_UNITSHIFT) & B_UNITMASK)
  97 #define B_PARTITIONSHIFT        8
  98 #define B_PARTITIONMASK         0xff
  99 #define B_PARTITION(val)        (((val) >> B_PARTITIONSHIFT) & B_PARTITIONMASK)
 100 #define B_TYPESHIFT             0
 101 #define B_TYPEMASK              0xff
 102 #define B_TYPE(val)             (((val) >> B_TYPESHIFT) & B_TYPEMASK)
 103
 104 #define B_MAGICMASK     0xf0000000
 105 #define B_DEVMAGIC      0xa0000000
 106
 107 #define MAKEBOOTDEV(type, adaptor, controller, unit, partition) \
 108         (((type) << B_TYPESHIFT) | ((adaptor) << B_ADAPTORSHIFT) | \
 109         ((controller) << B_CONTROLLERSHIFT) | ((unit) << B_UNITSHIFT) | \
 110         ((partition) << B_PARTITIONSHIFT) | B_DEVMAGIC)
 111
 112 #endif