The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/i386/acpica/OsdEnvironment.c

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    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: releng/5.0/sys/i386/acpica/OsdEnvironment.c 104223 2002-09-30 18:45:20Z jhb $
   28  */
   29 
   30 /*
   31  * 6.1 : Environmental support
   32  */
   33 
   34 #include "acpi.h"
   35 
   36 #include <machine/pc/bios.h>
   37 
   38 ACPI_STATUS
   39 AcpiOsInitialize(void)
   40 {
   41     return(0);
   42 }
   43 
   44 ACPI_STATUS
   45 AcpiOsTerminate(void)
   46 {
   47     return(0);
   48 }
   49 
   50 ACPI_STATUS
   51 AcpiOsGetRootPointer(
   52     UINT32                      Flags,
   53     ACPI_POINTER                *RsdpPhysicalAddress)
   54 {
   55     /*
   56      * The loader passes the physical address at which it found the
   57      * RSDP in a hint.  We could recover this rather than searching
   58      * manually here.
   59      */
   60     return(AcpiFindRootPointer(Flags, RsdpPhysicalAddress));
   61 }

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