Subversion Repositories Kolibri OS

        ACPI_MODULE_NAME    ("uteval")

/*

 * Strings supported by the _OSI predefined (internal) method.

 *

 * March 2009: Removed "Linux" as this host no longer wants to respond true

 * for this string. Basically, the only safe OS strings are windows-related

 * and in many or most cases represent the only test path within the

 * BIOS-provided ASL code.

 *

 * The second element of each entry is used to track the newest version of

 * Windows that the BIOS has requested.

 */

static const ACPI_INTERFACE_INFO    AcpiInterfacesSupported[] =

{

    /* Operating System Vendor Strings */

    {"Windows 2000",        ACPI_OSI_WIN_2000},         /* Windows 2000 */

    {"Windows 2001",        ACPI_OSI_WIN_XP},           /* Windows XP */

    {"Windows 2001 SP1",    ACPI_OSI_WIN_XP_SP1},       /* Windows XP SP1 */

    {"Windows 2001.1",      ACPI_OSI_WINSRV_2003},      /* Windows Server 2003 */

    {"Windows 2001 SP2",    ACPI_OSI_WIN_XP_SP2},       /* Windows XP SP2 */

    {"Windows 2001.1 SP1",  ACPI_OSI_WINSRV_2003_SP1},  /* Windows Server 2003 SP1 - Added 03/2006 */

    {"Windows 2006",        ACPI_OSI_WIN_VISTA},        /* Windows Vista - Added 03/2006 */

    {"Windows 2006.1",      ACPI_OSI_WINSRV_2008},      /* Windows Server 2008 - Added 09/2009 */

    {"Windows 2006 SP1",    ACPI_OSI_WIN_VISTA_SP1},    /* Windows Vista SP1 - Added 09/2009 */

    {"Windows 2009",        ACPI_OSI_WIN_7},            /* Windows 7 and Server 2008 R2 - Added 09/2009 */

    /* Feature Group Strings */

    {"Extended Address Space Descriptor", 0}

    /*

     * All "optional" feature group strings (features that are implemented

     * by the host) should be implemented in the host version of

     * AcpiOsValidateInterface and should not be added here.

     */

};

/*******************************************************************************

 *

 * FUNCTION:    AcpiUtOsiImplementation

 *

 * PARAMETERS:  WalkState           - Current walk state

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Implementation of the _OSI predefined control method

 *

 ******************************************************************************/

ACPI_STATUS

AcpiUtOsiImplementation (

    ACPI_WALK_STATE         *WalkState)

{

    ACPI_STATUS             Status;

    ACPI_OPERAND_OBJECT     *StringDesc;

    ACPI_OPERAND_OBJECT     *ReturnDesc;

    UINT32                  ReturnValue;

    UINT32                  i;

    ACPI_FUNCTION_TRACE (UtOsiImplementation);

    /* Validate the string input argument */

    StringDesc = WalkState->Arguments[0].Object;

    if (!StringDesc || (StringDesc->Common.Type != ACPI_TYPE_STRING))

    {

        return_ACPI_STATUS (AE_TYPE);

    }

    /* Create a return object */

    ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);

    if (!ReturnDesc)

    {

        return_ACPI_STATUS (AE_NO_MEMORY);

    }

    /* Default return value is 0, NOT SUPPORTED */

    ReturnValue = 0;

    /* Compare input string to static table of supported interfaces */

    for (i = 0; i < ACPI_ARRAY_LENGTH (AcpiInterfacesSupported); i++)

    {

        if (!ACPI_STRCMP (StringDesc->String.Pointer,

                AcpiInterfacesSupported[i].Name))

        {

            /*

             * The interface is supported.

             * Update the OsiData if necessary. We keep track of the latest

             * version of Windows that has been requested by the BIOS.

             */

            if (AcpiInterfacesSupported[i].Value > AcpiGbl_OsiData)

            {

                AcpiGbl_OsiData = AcpiInterfacesSupported[i].Value;

            }

            ReturnValue = ACPI_UINT32_MAX;

            goto Exit;

        }

    }

    /*

     * Did not match the string in the static table, call the host OSL to

     * check for a match with one of the optional strings (such as

     * "Module Device", "3.0 Thermal Model", etc.)

     */

    Status = AcpiOsValidateInterface (StringDesc->String.Pointer);

    if (ACPI_SUCCESS (Status))

    {

        /* The interface is supported */

        ReturnValue = ACPI_UINT32_MAX;

    }

Exit:

    ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO,

        "ACPI: BIOS _OSI(%s) is %ssupported\n",

        StringDesc->String.Pointer, ReturnValue == 0 ? "not " : ""));

    /* Complete the return value */

    ReturnDesc->Integer.Value = ReturnValue;

    WalkState->ReturnDesc = ReturnDesc;

    return_ACPI_STATUS (AE_OK);