OsdEnvironment.c revision 99149 
1/*-
2 * Copyright (c) 2000,2001 Michael Smith
3 * Copyright (c) 2000 BSDi
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 *	$FreeBSD: head/sys/amd64/acpica/OsdEnvironment.c 99149 2002-06-30 17:53:12Z iwasaki $
28 */
29
30/*
31 * 6.1 : Environmental support
32 */
33
34#include "acpi.h"
35
36#include <machine/pc/bios.h>
37
38ACPI_STATUS
39AcpiOsInitialize(void)
40{
41    /*
42     * Prevent the PnP BIOS code from interfering with our own scan of
43     * ISA devices.
44     */
45    PnPBIOStable = NULL;
46
47    return(NULL);
48}
49
50ACPI_STATUS
51AcpiOsTerminate(void)
52{
53    return(NULL);
54}
55
56ACPI_STATUS
57AcpiOsGetRootPointer(
58    UINT32			Flags,
59    ACPI_POINTER         	*RsdpPhysicalAddress)
60{
61    /*
62     * The loader passes the physical address at which it found the
63     * RSDP in a hint.  We could recover this rather than searching
64     * manually here.
65     */
66    return(AcpiFindRootPointer(Flags, RsdpPhysicalAddress));
67}
68