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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/stand/i386/libi386/bootinfo.c
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/*-

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 * Copyright (c) 1998 Michael Smith <[email protected]>

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 * All rights reserved.

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 *

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 * Redistribution and use in source and binary forms, with or without

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 * modification, are permitted provided that the following conditions

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 * are met:

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 * 1. Redistributions of source code must retain the above copyright

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 *    notice, this list of conditions and the following disclaimer.

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 * 2. Redistributions in binary form must reproduce the above copyright

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 *    notice, this list of conditions and the following disclaimer in the

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 *    documentation and/or other materials provided with the distribution.

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 *

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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND

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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE

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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

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 * SUCH DAMAGE.

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 */

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#include <stand.h>

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#include <sys/param.h>

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#include <sys/reboot.h>

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#include <sys/boot.h>

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#include <sys/linker.h>

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#include <gfx_fb.h>

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#include "bootstrap.h"

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#include "libi386.h"

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#include "vbe.h"

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#include "btxv86.h"

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int

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bi_getboothowto(char *kargs)

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{

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    char	*curpos, *next, *string;

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    int		howto;

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    int		vidconsole;

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    howto = boot_parse_cmdline(kargs);

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    howto |= boot_env_to_howto();

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    /* Enable selected consoles */

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    string = next = strdup(getenv("console"));

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    vidconsole = 0;

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    while (next != NULL) {

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	curpos = strsep(&next, " ,");

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	if (*curpos == '\0')

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		continue;

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	if (!strcmp(curpos, "vidconsole"))

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	    vidconsole = 1;

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	else if (!strcmp(curpos, "comconsole"))

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	    howto |= RB_SERIAL;

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	else if (!strcmp(curpos, "nullconsole"))

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	    howto |= RB_MUTE;

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    }

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    if (vidconsole && (howto & RB_SERIAL))

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	howto |= RB_MULTIPLE;

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    /*

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     * XXX: Note that until the kernel is ready to respect multiple consoles

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     * for the boot messages, the first named console is the primary console

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     */

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    if (!strcmp(string, "vidconsole"))

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	howto &= ~RB_SERIAL;

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    free(string);

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    return(howto);

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}

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void

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bi_setboothowto(int howto)

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{

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    boot_howto_to_env(howto);

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}

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