freebsd-skq/sys/boot/i386/libi386/i386_module.c
obrien 60f8c41a91 Restore autoloading of ACPI module.
Document the approved ways of disabling it.
Submitted by:	Daniel O'Connor <doconnor@gsoft.com.au>
2002-08-09 06:07:33 +00:00

60 lines
1.9 KiB
C

/*-
* 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.
*
* $FreeBSD$
*/
/*
* i386-specific module functionality.
*
*/
#include <stand.h>
#include <string.h>
#include "bootstrap.h"
#include "libi386.h"
/*
* Use voodoo to load modules required by current hardware.
*/
int
i386_autoload(void)
{
int error;
/* XXX use PnP to locate stuff here */
/* autoload ACPI support */
/* XXX should be in 4th keyed off acpi_load */
if ((getenv("acpi_load") && !getenv("hint.acpi.0.disable"))) {
error = mod_load("acpi", NULL, 0, NULL);
if (error != 0)
printf("ACPI autoload failed - %s\n", strerror(error));
}
return(0);
}