/* $NetBSD: boot_flag.h,v 1.8 2024/05/12 10:34:56 rillig Exp $ */

/*-
 * Copyright (c) 2000 The NetBSD Foundation, Inc.
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
 */

#ifndef _SYS_BOOT_FLAG_H_
#define _SYS_BOOT_FLAG_H_

#include <sys/reboot.h>

/*
 * Recognize standard boot arguments. If the flag is known, appropriate
 * value is or'ed to retval, otherwise retval is left intact.
 * Note that not all ports use all flags recognized here. This list is mere
 * concatenation of all non-conflicting standard boot flags. Individual ports
 * might use also other flags (see e.g. alpha).
 */
#define BOOT_FLAG(arg, retval) do {                             \
        switch (arg) {                                          \
        case '1': /* machine dependent flag */                  \
                (retval) |= RB_MD1;                             \
                break;                                          \
        case '2': /* machine dependent flag */                  \
                (retval) |= RB_MD2;                             \
                break;                                          \
        case '3': /* machine dependent flag */                  \
                (retval) |= RB_MD3;                             \
                break;                                          \
        case '4': /* machine dependent flag */                  \
                (retval) |= RB_MD4;                             \
                break;                                          \
        case 'a': /* ask for file name to boot from */          \
                (retval) |= RB_ASKNAME;                         \
                break;                                          \
        case 'b': /* always halt, never reboot */               \
                (retval) |= RB_HALT;                            \
                break;                                          \
        case 'c': /* userconf */                                \
                (retval) |= RB_USERCONF;                        \
                break;                                          \
        case 'd': /* break into the kernel debugger ASAP (if compiled in) */ \
                (retval) |= RB_KDB;                             \
                break;                                          \
        case 'm': /* mini root present in memory */             \
                (retval) |= RB_MINIROOT;                        \
                break;                                          \
        case 'q': /* boot quietly */                            \
                (retval) |= AB_QUIET;                           \
                break;                                          \
        case 's': /* boot to single user */                     \
                (retval) |= RB_SINGLE;                          \
                break;                                          \
        case 'v': /* boot verbosely */                          \
                (retval) |= AB_VERBOSE;                         \
                break;                                          \
        case 'x': /* boot with debugging messages */            \
                (retval) |= AB_DEBUG;                           \
                break;                                          \
        case 'z': /* boot silently */                           \
                (retval) |= AB_SILENT;                          \
                break;                                          \
        default:  /* something else, do nothing */              \
                break;                                          \
        } /* switch */                                          \
                                                                \
        } while (0)

#endif /* _SYS_BOOT_FLAG_H_ */