Subversion Repositories Kolibri OS

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

 *

 * Module Name: utglobal - Global variables for the ACPI subsystem

 *

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

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

 *

 * 1. Copyright Notice

 *

 * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.

 * All rights reserved.

 *

 * 2. License

 *

 * 2.1. This is your license from Intel Corp. under its intellectual property

 * rights.  You may have additional license terms from the party that provided

 * you this software, covering your right to use that party's intellectual

 * property rights.

 *

 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a

 * copy of the source code appearing in this file ("Covered Code") an

 * irrevocable, perpetual, worldwide license under Intel's copyrights in the

 * base code distributed originally by Intel ("Original Intel Code") to copy,

 * make derivatives, distribute, use and display any portion of the Covered

 * Code in any form, with the right to sublicense such rights; and

 *

 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent

 * license (with the right to sublicense), under only those claims of Intel

 * patents that are infringed by the Original Intel Code, to make, use, sell,

 * offer to sell, and import the Covered Code and derivative works thereof

 * solely to the minimum extent necessary to exercise the above copyright

 * license, and in no event shall the patent license extend to any additions

 * to or modifications of the Original Intel Code.  No other license or right

 * is granted directly or by implication, estoppel or otherwise;

 *

 * The above copyright and patent license is granted only if the following

 * conditions are met:

 *

 * 3. Conditions

 *

 * 3.1. Redistribution of Source with Rights to Further Distribute Source.

 * Redistribution of source code of any substantial portion of the Covered

 * Code or modification with rights to further distribute source must include

 * the above Copyright Notice, the above License, this list of Conditions,

 * and the following Disclaimer and Export Compliance provision.  In addition,

 * Licensee must cause all Covered Code to which Licensee contributes to

 * contain a file documenting the changes Licensee made to create that Covered

 * Code and the date of any change.  Licensee must include in that file the

 * documentation of any changes made by any predecessor Licensee.  Licensee

 * must include a prominent statement that the modification is derived,

 * directly or indirectly, from Original Intel Code.

 *

 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.

 * Redistribution of source code of any substantial portion of the Covered

 * Code or modification without rights to further distribute source must

 * include the following Disclaimer and Export Compliance provision in the

 * documentation and/or other materials provided with distribution.  In

 * addition, Licensee may not authorize further sublicense of source of any

 * portion of the Covered Code, and must include terms to the effect that the

 * license from Licensee to its licensee is limited to the intellectual

 * property embodied in the software Licensee provides to its licensee, and

 * not to intellectual property embodied in modifications its licensee may

 * make.

 *

 * 3.3. Redistribution of Executable. Redistribution in executable form of any

 * substantial portion of the Covered Code or modification must reproduce the

 * above Copyright Notice, and the following Disclaimer and Export Compliance

 * provision in the documentation and/or other materials provided with the

 * distribution.

 *

 * 3.4. Intel retains all right, title, and interest in and to the Original

 * Intel Code.

 *

 * 3.5. Neither the name Intel nor any other trademark owned or controlled by

 * Intel shall be used in advertising or otherwise to promote the sale, use or

 * other dealings in products derived from or relating to the Covered Code

 * without prior written authorization from Intel.

 *

 * 4. Disclaimer and Export Compliance

 *

 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED

 * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE

 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,

 * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY

 * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY

 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A

 * PARTICULAR PURPOSE.

 *

 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES

 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR

 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,

 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY

 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL

 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS

 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY

 * LIMITED REMEDY.

 *

 * 4.3. Licensee shall not export, either directly or indirectly, any of this

 * software or system incorporating such software without first obtaining any

 * required license or other approval from the U. S. Department of Commerce or

 * any other agency or department of the United States Government.  In the

 * event Licensee exports any such software from the United States or

 * re-exports any such software from a foreign destination, Licensee shall

 * ensure that the distribution and export/re-export of the software is in

 * compliance with all laws, regulations, orders, or other restrictions of the

 * U.S. Export Administration Regulations. Licensee agrees that neither it nor

 * any of its subsidiaries will export/re-export any technical data, process,

 * software, or service, directly or indirectly, to any country for which the

 * United States government or any agency thereof requires an export license,

 * other governmental approval, or letter of assurance, without first obtaining

 * such license, approval or letter.

 *

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

#define __UTGLOBAL_C__

#define DEFINE_ACPI_GLOBALS

#include "acpi.h"

#include "accommon.h"

#include "acnamesp.h"

#define _COMPONENT          ACPI_UTILITIES

        ACPI_MODULE_NAME    ("utglobal")

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

 *

 * Static global variable initialization.

 *

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

/*

 * We want the debug switches statically initialized so they

 * are already set when the debugger is entered.

 */

/* Debug switch - level and trace mask */

#ifdef ACPI_DEBUG_OUTPUT

UINT32                      AcpiDbgLevel = ACPI_DEBUG_DEFAULT;

#else

UINT32                      AcpiDbgLevel = ACPI_NORMAL_DEFAULT;

#endif

/* Debug switch - layer (component) mask */

UINT32                      AcpiDbgLayer = ACPI_COMPONENT_DEFAULT;

UINT32                      AcpiGbl_NestingLevel = 0;

/* Debugger globals */

BOOLEAN                     AcpiGbl_DbTerminateThreads = FALSE;

BOOLEAN                     AcpiGbl_AbortMethod = FALSE;

BOOLEAN                     AcpiGbl_MethodExecuting = FALSE;

/* System flags */

UINT32                      AcpiGbl_StartupFlags = 0;

/* System starts uninitialized */

BOOLEAN                     AcpiGbl_Shutdown = TRUE;

const char                  *AcpiGbl_SleepStateNames[ACPI_S_STATE_COUNT] =

{

    "\\_S0_",

    "\\_S1_",

    "\\_S2_",

    "\\_S3_",

    "\\_S4_",

    "\\_S5_"

};

const char                  *AcpiGbl_LowestDstateNames[ACPI_NUM_SxW_METHODS] =

{

    "_S0W",

    "_S1W",

    "_S2W",

    "_S3W",

    "_S4W"

};

const char                  *AcpiGbl_HighestDstateNames[ACPI_NUM_SxD_METHODS] =

{

    "_S1D",

    "_S2D",

    "_S3D",

    "_S4D"

};

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

 *

 * FUNCTION:    AcpiFormatException

 *

 * PARAMETERS:  Status       - The ACPI_STATUS code to be formatted

 *

 * RETURN:      A string containing the exception text. A valid pointer is

 *              always returned.

 *

 * DESCRIPTION: This function translates an ACPI exception into an ASCII string

 *              It is here instead of utxface.c so it is always present.

 *

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

const char *

AcpiFormatException (

    ACPI_STATUS             Status)

{

    const char              *Exception = NULL;

    ACPI_FUNCTION_ENTRY ();

    Exception = AcpiUtValidateException (Status);

    if (!Exception)

    {

        /* Exception code was not recognized */

        ACPI_ERROR ((AE_INFO,

            "Unknown exception code: 0x%8.8X", Status));

        Exception = "UNKNOWN_STATUS_CODE";

    }

    return (ACPI_CAST_PTR (const char, Exception));

}

ACPI_EXPORT_SYMBOL (AcpiFormatException)

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

 *

 * Namespace globals

 *

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

/*

 * Predefined ACPI Names (Built-in to the Interpreter)

 *

 * NOTES:

 * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run

 *    during the initialization sequence.

 * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to

 *    perform a Notify() operation on it.

 */

const ACPI_PREDEFINED_NAMES     AcpiGbl_PreDefinedNames[] =

{

    {"_GPE",    ACPI_TYPE_LOCAL_SCOPE,      NULL},

    {"_PR_",    ACPI_TYPE_LOCAL_SCOPE,      NULL},

    {"_SB_",    ACPI_TYPE_DEVICE,           NULL},

    {"_SI_",    ACPI_TYPE_LOCAL_SCOPE,      NULL},

    {"_TZ_",    ACPI_TYPE_THERMAL,          NULL},

    {"_REV",    ACPI_TYPE_INTEGER,          (char *) ACPI_CA_SUPPORT_LEVEL},

    {"_OS_",    ACPI_TYPE_STRING,           ACPI_OS_NAME},

    {"_GL_",    ACPI_TYPE_MUTEX,            (char *) 1},

#if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)

    {"_OSI",    ACPI_TYPE_METHOD,           (char *) 1},

#endif

    /* Table terminator */

    {NULL,      ACPI_TYPE_ANY,              NULL}

};

/*

 * Properties of the ACPI Object Types, both internal and external.

 * The table is indexed by values of ACPI_OBJECT_TYPE

 */

const UINT8                     AcpiGbl_NsProperties[ACPI_NUM_NS_TYPES] =

{

    ACPI_NS_NORMAL,                     /* 00 Any              */

    ACPI_NS_NORMAL,                     /* 01 Number           */

    ACPI_NS_NORMAL,                     /* 02 String           */

    ACPI_NS_NORMAL,                     /* 03 Buffer           */

    ACPI_NS_NORMAL,                     /* 04 Package          */

    ACPI_NS_NORMAL,                     /* 05 FieldUnit        */

    ACPI_NS_NEWSCOPE,                   /* 06 Device           */

    ACPI_NS_NORMAL,                     /* 07 Event            */

    ACPI_NS_NEWSCOPE,                   /* 08 Method           */

    ACPI_NS_NORMAL,                     /* 09 Mutex            */

    ACPI_NS_NORMAL,                     /* 10 Region           */

    ACPI_NS_NEWSCOPE,                   /* 11 Power            */

    ACPI_NS_NEWSCOPE,                   /* 12 Processor        */

    ACPI_NS_NEWSCOPE,                   /* 13 Thermal          */

    ACPI_NS_NORMAL,                     /* 14 BufferField      */

    ACPI_NS_NORMAL,                     /* 15 DdbHandle        */

    ACPI_NS_NORMAL,                     /* 16 Debug Object     */

    ACPI_NS_NORMAL,                     /* 17 DefField         */

    ACPI_NS_NORMAL,                     /* 18 BankField        */

    ACPI_NS_NORMAL,                     /* 19 IndexField       */

    ACPI_NS_NORMAL,                     /* 20 Reference        */

    ACPI_NS_NORMAL,                     /* 21 Alias            */

    ACPI_NS_NORMAL,                     /* 22 MethodAlias      */

    ACPI_NS_NORMAL,                     /* 23 Notify           */

    ACPI_NS_NORMAL,                     /* 24 Address Handler  */

    ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL,   /* 25 Resource Desc    */

    ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL,   /* 26 Resource Field   */

    ACPI_NS_NEWSCOPE,                   /* 27 Scope            */

    ACPI_NS_NORMAL,                     /* 28 Extra            */

    ACPI_NS_NORMAL,                     /* 29 Data             */

    ACPI_NS_NORMAL                      /* 30 Invalid          */

};

/* Hex to ASCII conversion table */

static const char           AcpiGbl_HexToAscii[] =

{

    '0','1','2','3','4','5','6','7',

    '8','9','A','B','C','D','E','F'

};

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

 *

 * FUNCTION:    AcpiUtHexToAsciiChar

 *

 * PARAMETERS:  Integer             - Contains the hex digit

 *              Position            - bit position of the digit within the

 *                                    integer (multiple of 4)

 *

 * RETURN:      The converted Ascii character

 *

 * DESCRIPTION: Convert a hex digit to an Ascii character

 *

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

char

AcpiUtHexToAsciiChar (

    UINT64                  Integer,

    UINT32                  Position)

{

    return (AcpiGbl_HexToAscii[(Integer >> Position) & 0xF]);

}

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

 *

 * Event and Hardware globals

 *

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

ACPI_BIT_REGISTER_INFO      AcpiGbl_BitRegisterInfo[ACPI_NUM_BITREG] =

{

    /* Name                                     Parent Register             Register Bit Position                   Register Bit Mask       */

    /* ACPI_BITREG_TIMER_STATUS         */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_TIMER_STATUS,          ACPI_BITMASK_TIMER_STATUS},

    /* ACPI_BITREG_BUS_MASTER_STATUS    */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_BUS_MASTER_STATUS,     ACPI_BITMASK_BUS_MASTER_STATUS},

    /* ACPI_BITREG_GLOBAL_LOCK_STATUS   */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,    ACPI_BITMASK_GLOBAL_LOCK_STATUS},

    /* ACPI_BITREG_POWER_BUTTON_STATUS  */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_POWER_BUTTON_STATUS,   ACPI_BITMASK_POWER_BUTTON_STATUS},

    /* ACPI_BITREG_SLEEP_BUTTON_STATUS  */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,   ACPI_BITMASK_SLEEP_BUTTON_STATUS},

    /* ACPI_BITREG_RT_CLOCK_STATUS      */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_RT_CLOCK_STATUS,       ACPI_BITMASK_RT_CLOCK_STATUS},

    /* ACPI_BITREG_WAKE_STATUS          */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_WAKE_STATUS,           ACPI_BITMASK_WAKE_STATUS},

    /* ACPI_BITREG_PCIEXP_WAKE_STATUS   */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,    ACPI_BITMASK_PCIEXP_WAKE_STATUS},

    /* ACPI_BITREG_TIMER_ENABLE         */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_TIMER_ENABLE,          ACPI_BITMASK_TIMER_ENABLE},

    /* ACPI_BITREG_GLOBAL_LOCK_ENABLE   */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,    ACPI_BITMASK_GLOBAL_LOCK_ENABLE},

    /* ACPI_BITREG_POWER_BUTTON_ENABLE  */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_POWER_BUTTON_ENABLE,   ACPI_BITMASK_POWER_BUTTON_ENABLE},

    /* ACPI_BITREG_SLEEP_BUTTON_ENABLE  */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,   ACPI_BITMASK_SLEEP_BUTTON_ENABLE},

    /* ACPI_BITREG_RT_CLOCK_ENABLE      */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_RT_CLOCK_ENABLE,       ACPI_BITMASK_RT_CLOCK_ENABLE},

    /* ACPI_BITREG_PCIEXP_WAKE_DISABLE  */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,   ACPI_BITMASK_PCIEXP_WAKE_DISABLE},

    /* ACPI_BITREG_SCI_ENABLE           */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_SCI_ENABLE,            ACPI_BITMASK_SCI_ENABLE},

    /* ACPI_BITREG_BUS_MASTER_RLD       */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_BUS_MASTER_RLD,        ACPI_BITMASK_BUS_MASTER_RLD},

    /* ACPI_BITREG_GLOBAL_LOCK_RELEASE  */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,   ACPI_BITMASK_GLOBAL_LOCK_RELEASE},

    /* ACPI_BITREG_SLEEP_TYPE           */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_SLEEP_TYPE,            ACPI_BITMASK_SLEEP_TYPE},

    /* ACPI_BITREG_SLEEP_ENABLE         */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_SLEEP_ENABLE,          ACPI_BITMASK_SLEEP_ENABLE},

    /* ACPI_BITREG_ARB_DIS              */   {ACPI_REGISTER_PM2_CONTROL,  ACPI_BITPOSITION_ARB_DISABLE,           ACPI_BITMASK_ARB_DISABLE}

};

ACPI_FIXED_EVENT_INFO       AcpiGbl_FixedEventInfo[ACPI_NUM_FIXED_EVENTS] =

{

    /* ACPI_EVENT_PMTIMER       */  {ACPI_BITREG_TIMER_STATUS,          ACPI_BITREG_TIMER_ENABLE,        ACPI_BITMASK_TIMER_STATUS,          ACPI_BITMASK_TIMER_ENABLE},

    /* ACPI_EVENT_GLOBAL        */  {ACPI_BITREG_GLOBAL_LOCK_STATUS,    ACPI_BITREG_GLOBAL_LOCK_ENABLE,  ACPI_BITMASK_GLOBAL_LOCK_STATUS,    ACPI_BITMASK_GLOBAL_LOCK_ENABLE},

    /* ACPI_EVENT_POWER_BUTTON  */  {ACPI_BITREG_POWER_BUTTON_STATUS,   ACPI_BITREG_POWER_BUTTON_ENABLE, ACPI_BITMASK_POWER_BUTTON_STATUS,   ACPI_BITMASK_POWER_BUTTON_ENABLE},

    /* ACPI_EVENT_SLEEP_BUTTON  */  {ACPI_BITREG_SLEEP_BUTTON_STATUS,   ACPI_BITREG_SLEEP_BUTTON_ENABLE, ACPI_BITMASK_SLEEP_BUTTON_STATUS,   ACPI_BITMASK_SLEEP_BUTTON_ENABLE},

    /* ACPI_EVENT_RTC           */  {ACPI_BITREG_RT_CLOCK_STATUS,       ACPI_BITREG_RT_CLOCK_ENABLE,     ACPI_BITMASK_RT_CLOCK_STATUS,       ACPI_BITMASK_RT_CLOCK_ENABLE},

};

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

 *

 * FUNCTION:    AcpiUtGetRegionName

 *

 * PARAMETERS:  None.

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Translate a Space ID into a name string (Debug only)

 *

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

/* Region type decoding */

const char        *AcpiGbl_RegionTypes[ACPI_NUM_PREDEFINED_REGIONS] =

{

    "SystemMemory",

    "SystemIO",

    "PCI_Config",

    "EmbeddedControl",

    "SMBus",

    "SystemCMOS",

    "PCIBARTarget",

    "IPMI",

    "DataTable"

};

char *

AcpiUtGetRegionName (

    UINT8                   SpaceId)

{

    if (SpaceId >= ACPI_USER_REGION_BEGIN)

    {

        return ("UserDefinedRegion");

    }

    else if (SpaceId >= ACPI_NUM_PREDEFINED_REGIONS)

    {

        return ("InvalidSpaceId");

    }

    return (ACPI_CAST_PTR (char, AcpiGbl_RegionTypes[SpaceId]));

}

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

 *

 * FUNCTION:    AcpiUtGetEventName

 *

 * PARAMETERS:  None.

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Translate a Event ID into a name string (Debug only)

 *

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

/* Event type decoding */

static const char        *AcpiGbl_EventTypes[ACPI_NUM_FIXED_EVENTS] =

{

    "PM_Timer",

    "GlobalLock",

    "PowerButton",

    "SleepButton",

    "RealTimeClock",

};

char *

AcpiUtGetEventName (

    UINT32                  EventId)

{

    if (EventId > ACPI_EVENT_MAX)

    {

        return ("InvalidEventID");

    }

    return (ACPI_CAST_PTR (char, AcpiGbl_EventTypes[EventId]));

}

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

 *

 * FUNCTION:    AcpiUtGetTypeName

 *

 * PARAMETERS:  None.

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Translate a Type ID into a name string (Debug only)

 *

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

/*

 * Elements of AcpiGbl_NsTypeNames below must match

 * one-to-one with values of ACPI_OBJECT_TYPE

 *

 * The type ACPI_TYPE_ANY (Untyped) is used as a "don't care" when searching;

 * when stored in a table it really means that we have thus far seen no

 * evidence to indicate what type is actually going to be stored for this entry.

 */

static const char           AcpiGbl_BadType[] = "UNDEFINED";

/* Printable names of the ACPI object types */

static const char           *AcpiGbl_NsTypeNames[] =

{

    /* 00 */ "Untyped",

    /* 01 */ "Integer",

    /* 02 */ "String",

    /* 03 */ "Buffer",

    /* 04 */ "Package",

    /* 05 */ "FieldUnit",

    /* 06 */ "Device",

    /* 07 */ "Event",

    /* 08 */ "Method",

    /* 09 */ "Mutex",

    /* 10 */ "Region",

    /* 11 */ "Power",

    /* 12 */ "Processor",

    /* 13 */ "Thermal",

    /* 14 */ "BufferField",

    /* 15 */ "DdbHandle",

    /* 16 */ "DebugObject",

    /* 17 */ "RegionField",

    /* 18 */ "BankField",

    /* 19 */ "IndexField",

    /* 20 */ "Reference",

    /* 21 */ "Alias",

    /* 22 */ "MethodAlias",

    /* 23 */ "Notify",

    /* 24 */ "AddrHandler",

    /* 25 */ "ResourceDesc",

    /* 26 */ "ResourceFld",

    /* 27 */ "Scope",

    /* 28 */ "Extra",

    /* 29 */ "Data",

    /* 30 */ "Invalid"

};

char *

AcpiUtGetTypeName (

    ACPI_OBJECT_TYPE        Type)

{

    if (Type > ACPI_TYPE_INVALID)

    {

        return (ACPI_CAST_PTR (char, AcpiGbl_BadType));

    }

    return (ACPI_CAST_PTR (char, AcpiGbl_NsTypeNames[Type]));

}

char *

AcpiUtGetObjectTypeName (

    ACPI_OPERAND_OBJECT     *ObjDesc)

{

    if (!ObjDesc)

    {

        return ("[NULL Object Descriptor]");

    }

    return (AcpiUtGetTypeName (ObjDesc->Common.Type));

}

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

 *

 * FUNCTION:    AcpiUtGetNodeName

 *

 * PARAMETERS:  Object               - A namespace node

 *

 * RETURN:      Pointer to a string

 *

 * DESCRIPTION: Validate the node and return the node's ACPI name.

 *

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

char *

AcpiUtGetNodeName (

    void                    *Object)

{

    ACPI_NAMESPACE_NODE     *Node = (ACPI_NAMESPACE_NODE *) Object;

    /* Must return a string of exactly 4 characters == ACPI_NAME_SIZE */

    if (!Object)

    {

        return ("NULL");

    }

    /* Check for Root node */

    if ((Object == ACPI_ROOT_OBJECT) ||

        (Object == AcpiGbl_RootNode))

    {

        return ("\"\\\" ");

    }

    /* Descriptor must be a namespace node */

    if (ACPI_GET_DESCRIPTOR_TYPE (Node) != ACPI_DESC_TYPE_NAMED)

    {

        return ("####");

    }

    /*

     * Ensure name is valid. The name was validated/repaired when the node

     * was created, but make sure it has not been corrupted.

     */

    AcpiUtRepairName (Node->Name.Ascii);

    /* Return the name */

    return (Node->Name.Ascii);

}

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

 *

 * FUNCTION:    AcpiUtGetDescriptorName

 *

 * PARAMETERS:  Object               - An ACPI object

 *

 * RETURN:      Pointer to a string

 *

 * DESCRIPTION: Validate object and return the descriptor type

 *

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

/* Printable names of object descriptor types */

static const char           *AcpiGbl_DescTypeNames[] =

{

    /* 00 */ "Not a Descriptor",

    /* 01 */ "Cached",

    /* 02 */ "State-Generic",

    /* 03 */ "State-Update",

    /* 04 */ "State-Package",

    /* 05 */ "State-Control",

    /* 06 */ "State-RootParseScope",

    /* 07 */ "State-ParseScope",

    /* 08 */ "State-WalkScope",

    /* 09 */ "State-Result",

    /* 10 */ "State-Notify",

    /* 11 */ "State-Thread",

    /* 12 */ "Walk",

    /* 13 */ "Parser",

    /* 14 */ "Operand",

    /* 15 */ "Node"

};

char *

AcpiUtGetDescriptorName (

    void                    *Object)

{

    if (!Object)

    {

        return ("NULL OBJECT");

    }

    if (ACPI_GET_DESCRIPTOR_TYPE (Object) > ACPI_DESC_TYPE_MAX)

    {

        return ("Not a Descriptor");

    }

    return (ACPI_CAST_PTR (char,

        AcpiGbl_DescTypeNames[ACPI_GET_DESCRIPTOR_TYPE (Object)]));

}

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

 *

 * FUNCTION:    AcpiUtGetReferenceName

 *

 * PARAMETERS:  Object               - An ACPI reference object

 *

 * RETURN:      Pointer to a string

 *

 * DESCRIPTION: Decode a reference object sub-type to a string.

 *

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

/* Printable names of reference object sub-types */

static const char           *AcpiGbl_RefClassNames[] =

{

    /* 00 */ "Local",

    /* 01 */ "Argument",

    /* 02 */ "RefOf",

    /* 03 */ "Index",

    /* 04 */ "DdbHandle",

    /* 05 */ "Named Object",

    /* 06 */ "Debug"

};

const char *

AcpiUtGetReferenceName (

    ACPI_OPERAND_OBJECT     *Object)

{

    if (!Object)

    {

        return ("NULL Object");

    }

    if (ACPI_GET_DESCRIPTOR_TYPE (Object) != ACPI_DESC_TYPE_OPERAND)

    {

        return ("Not an Operand object");

    }

    if (Object->Common.Type != ACPI_TYPE_LOCAL_REFERENCE)

    {

        return ("Not a Reference object");

    }

    if (Object->Reference.Class > ACPI_REFCLASS_MAX)

    {

        return ("Unknown Reference class");

    }

    return (AcpiGbl_RefClassNames[Object->Reference.Class]);

}

#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)

/*

 * Strings and procedures used for debug only

 */

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

 *

 * FUNCTION:    AcpiUtGetMutexName

 *

 * PARAMETERS:  MutexId         - The predefined ID for this mutex.

 *

 * RETURN:      String containing the name of the mutex. Always returns a valid

 *              pointer.

 *

 * DESCRIPTION: Translate a mutex ID into a name string (Debug only)

 *

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

char *

AcpiUtGetMutexName (

    UINT32                  MutexId)

{

    if (MutexId > ACPI_MAX_MUTEX)

    {

        return ("Invalid Mutex ID");

    }

    return (AcpiGbl_MutexNames[MutexId]);

}

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

 *

 * FUNCTION:    AcpiUtGetNotifyName

 *

 * PARAMETERS:  NotifyValue     - Value from the Notify() request

 *

 * RETURN:      String corresponding to the Notify Value.

 *

 * DESCRIPTION: Translate a Notify Value to a notify namestring.

 *

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

/* Names for Notify() values, used for debug output */

static const char        *AcpiGbl_NotifyValueNames[] =

{

    "Bus Check",

    "Device Check",

    "Device Wake",

    "Eject Request",

    "Device Check Light",

    "Frequency Mismatch",

    "Bus Mode Mismatch",

    "Power Fault",

    "Capabilities Check",

    "Device PLD Check",

    "Reserved",

    "System Locality Update"

};

const char *

AcpiUtGetNotifyName (

    UINT32                  NotifyValue)

{

    if (NotifyValue <= ACPI_NOTIFY_MAX)

    {

        return (AcpiGbl_NotifyValueNames[NotifyValue]);

    }

    else if (NotifyValue <= ACPI_MAX_SYS_NOTIFY)

    {

        return ("Reserved");

    }

    else /* Greater or equal to 0x80 */

    {

        return ("**Device Specific**");

    }

}

#endif

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

 *

 * FUNCTION:    AcpiUtValidObjectType

 *

 * PARAMETERS:  Type            - Object type to be validated

 *

 * RETURN:      TRUE if valid object type, FALSE otherwise

 *

 * DESCRIPTION: Validate an object type

 *

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

BOOLEAN

AcpiUtValidObjectType (

    ACPI_OBJECT_TYPE        Type)

{

    if (Type > ACPI_TYPE_LOCAL_MAX)

    {

        /* Note: Assumes all TYPEs are contiguous (external/local) */

        return (FALSE);

    }

    return (TRUE);

}

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

 *

 * FUNCTION:    AcpiUtInitGlobals

 *

 * PARAMETERS:  None

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Init library globals.  All globals that require specific

 *              initialization should be initialized here!

 *

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

ACPI_STATUS

AcpiUtInitGlobals (

    void)

{

    ACPI_STATUS             Status;

    UINT32                  i;

    ACPI_FUNCTION_TRACE (UtInitGlobals);

    /* Create all memory caches */

    Status = AcpiUtCreateCaches ();

    if (ACPI_FAILURE (Status))

    {

        return_ACPI_STATUS (Status);

    }

    /* Mutex locked flags */

    for (i = 0; i < ACPI_NUM_MUTEX; i++)

    {

        AcpiGbl_MutexInfo[i].Mutex          = NULL;

        AcpiGbl_MutexInfo[i].ThreadId       = ACPI_MUTEX_NOT_ACQUIRED;

        AcpiGbl_MutexInfo[i].UseCount       = 0;

    }

    for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++)

    {

        AcpiGbl_OwnerIdMask[i]              = 0;

    }

    /* Last OwnerID is never valid */

    AcpiGbl_OwnerIdMask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000;

    /* Event counters */

    AcpiMethodCount                     = 0;

    AcpiSciCount                        = 0;

    AcpiGpeCount                        = 0;

    for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++)

    {

        AcpiFixedEventCount[i]              = 0;

    }

    /* GPE support */

    AcpiGbl_GpeXruptListHead            = NULL;

    AcpiGbl_GpeFadtBlocks[0]            = NULL;

    AcpiGbl_GpeFadtBlocks[1]            = NULL;

    AcpiCurrentGpeCount                 = 0;

    /* Global handlers */

    AcpiGbl_SystemNotify.Handler        = NULL;

    AcpiGbl_DeviceNotify.Handler        = NULL;

    AcpiGbl_ExceptionHandler            = NULL;

    AcpiGbl_InitHandler                 = NULL;

    AcpiGbl_TableHandler                = NULL;

    /* Global Lock support */

    AcpiGbl_GlobalLockSemaphore         = NULL;

    AcpiGbl_GlobalLockMutex             = NULL;

    AcpiGbl_GlobalLockAcquired          = FALSE;

    AcpiGbl_GlobalLockHandle            = 0;

    AcpiGbl_GlobalLockPresent           = FALSE;

    /* Miscellaneous variables */

    AcpiGbl_DSDT                        = NULL;

    AcpiGbl_CmSingleStep                = FALSE;

    AcpiGbl_DbTerminateThreads          = FALSE;

    AcpiGbl_Shutdown                    = FALSE;

    AcpiGbl_NsLookupCount               = 0;

    AcpiGbl_PsFindCount                 = 0;

    AcpiGbl_AcpiHardwarePresent         = TRUE;

    AcpiGbl_LastOwnerIdIndex            = 0;

    AcpiGbl_NextOwnerIdOffset           = 0;

    AcpiGbl_TraceMethodName             = 0;

    AcpiGbl_TraceDbgLevel               = 0;

    AcpiGbl_TraceDbgLayer               = 0;

    AcpiGbl_DebuggerConfiguration       = DEBUGGER_THREADING;

    AcpiGbl_DbOutputFlags               = ACPI_DB_CONSOLE_OUTPUT;

    AcpiGbl_OsiData                     = 0;

    /* Hardware oriented */

    AcpiGbl_EventsInitialized           = FALSE;

    AcpiGbl_SystemAwakeAndRunning       = TRUE;

    /* Namespace */

    AcpiGbl_ModuleCodeList              = NULL;

    AcpiGbl_RootNode                    = NULL;

    AcpiGbl_RootNodeStruct.Name.Integer = ACPI_ROOT_NAME;

    AcpiGbl_RootNodeStruct.DescriptorType = ACPI_DESC_TYPE_NAMED;

    AcpiGbl_RootNodeStruct.Type         = ACPI_TYPE_DEVICE;

    AcpiGbl_RootNodeStruct.Parent       = NULL;

    AcpiGbl_RootNodeStruct.Child        = NULL;

    AcpiGbl_RootNodeStruct.Peer         = NULL;

    AcpiGbl_RootNodeStruct.Object       = NULL;

#ifdef ACPI_DISASSEMBLER

    AcpiGbl_ExternalList                = NULL;

#endif

#ifdef ACPI_DEBUG_OUTPUT

    AcpiGbl_LowestStackPointer          = ACPI_CAST_PTR (ACPI_SIZE, ACPI_SIZE_MAX);

#endif

#ifdef ACPI_DBG_TRACK_ALLOCATIONS

    AcpiGbl_DisplayFinalMemStats        = FALSE;

    AcpiGbl_DisableMemTracking          = FALSE;

#endif

    return_ACPI_STATUS (AE_OK);

}

/* Public globals */

ACPI_EXPORT_SYMBOL (AcpiGbl_FADT)

ACPI_EXPORT_SYMBOL (AcpiDbgLevel)

ACPI_EXPORT_SYMBOL (AcpiDbgLayer)

ACPI_EXPORT_SYMBOL (AcpiGpeCount)

ACPI_EXPORT_SYMBOL (AcpiCurrentGpeCount)