xref: /freebsd-11-stable/sys/x86/acpica/OsdEnvironment.c

/*-
 * Copyright (c) 2000 Michael Smith
 * Copyright (c) 2000 BSDi
 * 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: head/sys/amd64/acpica/OsdEnvironment.c 80071 2001-07-21 04:10:01Z msmith $
 */

/*
 * 6.1 : Environmental support
 */

#include "acpi.h"

#ifdef __i386__
#include <machine/pc/bios.h>
#endif

ACPI_STATUS
AcpiOsInitialize(void)
{
#ifdef __i386__
    /*
     * Prevent the PnP BIOS code from interfering with our own scan of ISA devices.
     */
    PnPBIOStable = NULL;
#endif
    return(NULL);
}

ACPI_STATUS
AcpiOsTerminate(void)
{
    return(NULL);
}

ACPI_STATUS
AcpiOsGetRootPointer(
    UINT32			Flags,
    ACPI_PHYSICAL_ADDRESS	*RsdpPhysicalAddress)
{
    return(AcpiFindRootPointer(Flags, RsdpPhysicalAddress));
}