71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
/*-
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* Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
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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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* $FreeBSD$
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*/
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/*
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* i386-specific module functionality.
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*
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*/
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#include <stand.h>
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#include <string.h>
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#include "bootstrap.h"
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#include "libi386.h"
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/*
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* Use voodoo to load modules required by current hardware.
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*/
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int
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i386_autoload(void)
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{
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int error;
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int disabled;
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char *rv;
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/* XXX use PnP to locate stuff here */
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/* autoload ACPI support */
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if (file_findfile(NULL, "elf64 kernel") != NULL)
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return (0); /* ACPI is mandatory */
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/* XXX should be in 4th keyed off acpi_load */
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disabled = 0;
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rv = getenv("hint.acpi.0.disabled");
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if (rv != NULL && strncmp(rv, "0", 1) != 0) {
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disabled = 1;
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}
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if (getenv("acpi_load") && (!disabled)) {
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error = mod_load("acpi", NULL, 0, NULL);
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if (error != 0)
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printf("ACPI autoload failed - %s\n", strerror(error));
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}
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return(0);
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}
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