xref: /freebsd/stand/i386/libi386/bootinfo.c (revision 3e15b01d)

/*-
 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
 * 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 AUTHOR 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 AUTHOR 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.
 */

#include <stand.h>
#include <sys/param.h>
#include <sys/reboot.h>
#include <sys/boot.h>
#include <sys/linker.h>
#include <gfx_fb.h>
#include "bootstrap.h"
#include "libi386.h"
#include "vbe.h"
#include "btxv86.h"

int
bi_getboothowto(char *kargs)
{
    char	*curpos, *next, *string;
    int		howto;
    int		vidconsole;

    howto = boot_parse_cmdline(kargs);
    howto |= boot_env_to_howto();

    /* Enable selected consoles */
    string = next = strdup(getenv("console"));
    vidconsole = 0;
    while (next != NULL) {
	curpos = strsep(&next, " ,");
	if (*curpos == '\0')
		continue;
	if (!strcmp(curpos, "vidconsole"))
	    vidconsole = 1;
	else if (!strcmp(curpos, "comconsole"))
	    howto |= RB_SERIAL;
	else if (!strcmp(curpos, "nullconsole"))
	    howto |= RB_MUTE;
    }

    if (vidconsole && (howto & RB_SERIAL))
	howto |= RB_MULTIPLE;

    /*
     * XXX: Note that until the kernel is ready to respect multiple consoles
     * for the boot messages, the first named console is the primary console
     */
    if (!strcmp(string, "vidconsole"))
	howto &= ~RB_SERIAL;

    free(string);

    return(howto);
}

void
bi_setboothowto(int howto)
{

    boot_howto_to_env(howto);
}