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

 *

 * Module Name: dmnames - AML disassembler, names, namestrings, pathnames

 *

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

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

 *

 * 1. Copyright Notice

 *

 * Some or all of this work - Copyright (c) 1999 - 2011, 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.

 *

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

#include "acpi.h"

#include "accommon.h"

#include "acparser.h"

#include "amlcode.h"

#include "acnamesp.h"

#include "acdisasm.h"

#ifdef ACPI_DISASSEMBLER

#define _COMPONENT          ACPI_CA_DEBUGGER

        ACPI_MODULE_NAME    ("dmnames")

/* Local prototypes */

#ifdef ACPI_OBSOLETE_FUNCTIONS

void

AcpiDmDisplayPath (

    ACPI_PARSE_OBJECT       *Op);

#endif

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

 *

 * FUNCTION:    AcpiDmDumpName

 *

 * PARAMETERS:  Name            - 4 character ACPI name

 *

 * RETURN:      Final length of name

 *

 * DESCRIPTION: Dump an ACPI name, minus any trailing underscores.

 *

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

UINT32

AcpiDmDumpName (

    UINT32                  Name)

{

    UINT32                  i;

    UINT32                  Length;

    char                    NewName[4];

    /* Copy name locally in case the original name is not writeable */

    *ACPI_CAST_PTR (UINT32, &NewName[0]) = Name;

    /* Ensure that the name is printable, even if we have to fix it */

    AcpiUtRepairName (NewName);

    /* Remove all trailing underscores from the name */

    Length = ACPI_NAME_SIZE;

    for (i = (ACPI_NAME_SIZE - 1); i != 0; i--)

    {

        if (NewName[i] == '_')

        {

            Length--;

        }

        else

        {

            break;

        }

    }

    /* Dump the name, up to the start of the trailing underscores */

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

    {

        AcpiOsPrintf ("%c", NewName[i]);

    }

    return (Length);

}

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

 *

 * FUNCTION:    AcpiPsDisplayObjectPathname

 *

 * PARAMETERS:  WalkState       - Current walk state

 *              Op              - Object whose pathname is to be obtained

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Diplay the pathname associated with a named object.  Two

 *              versions. One searches the parse tree (for parser-only

 *              applications suchas AcpiDump), and the other searches the

 *              ACPI namespace (the parse tree is probably deleted)

 *

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

ACPI_STATUS

AcpiPsDisplayObjectPathname (

    ACPI_WALK_STATE         *WalkState,

    ACPI_PARSE_OBJECT       *Op)

{

    ACPI_STATUS             Status;

    ACPI_NAMESPACE_NODE     *Node;

    ACPI_BUFFER             Buffer;

    UINT32                  DebugLevel;

    /* Save current debug level so we don't get extraneous debug output */

    DebugLevel = AcpiDbgLevel;

    AcpiDbgLevel = 0;

    /* Just get the Node out of the Op object */

    Node = Op->Common.Node;

    if (!Node)

    {

        /* Node not defined in this scope, look it up */

        Status = AcpiNsLookup (WalkState->ScopeInfo, Op->Common.Value.String,

                    ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,

                    WalkState, &(Node));

        if (ACPI_FAILURE (Status))

        {

            /*

             * We can't get the pathname since the object

             * is not in the namespace.  This can happen during single

             * stepping where a dynamic named object is *about* to be created.

             */

            AcpiOsPrintf ("  [Path not found]");

            goto Exit;

        }

        /* Save it for next time. */

        Op->Common.Node = Node;

    }

    /* Convert NamedDesc/handle to a full pathname */

    Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER;

    Status = AcpiNsHandleToPathname (Node, &Buffer);

    if (ACPI_FAILURE (Status))

    {

        AcpiOsPrintf ("****Could not get pathname****)");

        goto Exit;

    }

    AcpiOsPrintf ("  (Path %s)", (char *) Buffer.Pointer);

    ACPI_FREE (Buffer.Pointer);

Exit:

    /* Restore the debug level */

    AcpiDbgLevel = DebugLevel;

    return (Status);

}

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

 *

 * FUNCTION:    AcpiDmNamestring

 *

 * PARAMETERS:  Name                - ACPI Name string to store

 *

 * RETURN:      None

 *

 * DESCRIPTION: Decode and dump an ACPI namestring. Handles prefix characters

 *

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

void

AcpiDmNamestring (

    char                    *Name)

{

    UINT32                  SegCount;

    if (!Name)

    {

        return;

    }

    /* Handle all Scope Prefix operators */

    while (AcpiPsIsPrefixChar (ACPI_GET8 (Name)))

    {

        /* Append prefix character */

        AcpiOsPrintf ("%1c", ACPI_GET8 (Name));

        Name++;

    }

    switch (ACPI_GET8 (Name))

    {

    case 0:

        SegCount = 0;

        break;

    case AML_DUAL_NAME_PREFIX:

        SegCount = 2;

        Name++;

        break;

    case AML_MULTI_NAME_PREFIX_OP:

        SegCount = (UINT32) ACPI_GET8 (Name + 1);

        Name += 2;

        break;

    default:

        SegCount = 1;

        break;

    }

    while (SegCount)

    {

        /* Append Name segment */

        AcpiDmDumpName (*ACPI_CAST_PTR (UINT32, Name));

        SegCount--;

        if (SegCount)

        {

            /* Not last name, append dot separator */

            AcpiOsPrintf (".");

        }

        Name += ACPI_NAME_SIZE;

    }

}

#ifdef ACPI_OBSOLETE_FUNCTIONS

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

 *

 * FUNCTION:    AcpiDmDisplayPath

 *

 * PARAMETERS:  Op                  - Named Op whose path is to be constructed

 *

 * RETURN:      None

 *

 * DESCRIPTION: Walk backwards from current scope and display the name

 *              of each previous level of scope up to the root scope

 *              (like "pwd" does with file systems)

 *

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

void

AcpiDmDisplayPath (

    ACPI_PARSE_OBJECT       *Op)

{

    ACPI_PARSE_OBJECT       *Prev;

    ACPI_PARSE_OBJECT       *Search;

    UINT32                  Name;

    BOOLEAN                 DoDot = FALSE;

    ACPI_PARSE_OBJECT       *NamePath;

    const ACPI_OPCODE_INFO  *OpInfo;

    /* We are only interested in named objects */

    OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);

    if (!(OpInfo->Flags & AML_NSNODE))

    {

        return;

    }

    if (OpInfo->Flags & AML_CREATE)

    {

        /* Field creation - check for a fully qualified namepath */

        if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP)

        {

            NamePath = AcpiPsGetArg (Op, 3);

        }

        else

        {

            NamePath = AcpiPsGetArg (Op, 2);

        }

        if ((NamePath) &&

            (NamePath->Common.Value.String) &&

            (NamePath->Common.Value.String[0] == '\\'))

        {

            AcpiDmNamestring (NamePath->Common.Value.String);

            return;

        }

    }

    Prev = NULL;            /* Start with Root Node */

    while (Prev != Op)

    {

        /* Search upwards in the tree to find scope with "prev" as its parent */

        Search = Op;

        for (; ;)

        {

            if (Search->Common.Parent == Prev)

            {

                break;

            }

            /* Go up one level */

            Search = Search->Common.Parent;

        }

        if (Prev)

        {

            OpInfo = AcpiPsGetOpcodeInfo (Search->Common.AmlOpcode);

            if (!(OpInfo->Flags & AML_FIELD))

            {

                /* Below root scope, append scope name */

                if (DoDot)

                {

                    /* Append dot */

                    AcpiOsPrintf (".");

                }

                if (OpInfo->Flags & AML_CREATE)

                {

                    if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP)

                    {

                        NamePath = AcpiPsGetArg (Op, 3);

                    }

                    else

                    {

                        NamePath = AcpiPsGetArg (Op, 2);

                    }

                    if ((NamePath) &&

                        (NamePath->Common.Value.String))

                    {

                        AcpiDmDumpName (NamePath->Common.Value.String);

                    }

                }

                else

                {

                    Name = AcpiPsGetName (Search);

                    AcpiDmDumpName ((char *) &Name);

                }

                DoDot = TRUE;

            }

        }

        Prev = Search;

    }

}

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

 *

 * FUNCTION:    AcpiDmValidateName

 *

 * PARAMETERS:  Name            - 4 character ACPI name

 *

 * RETURN:      None

 *

 * DESCRIPTION: Lookup the name

 *

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

void

AcpiDmValidateName (

    char                    *Name,

    ACPI_PARSE_OBJECT       *Op)

{

    if ((!Name) ||

        (!Op->Common.Parent))

    {

        return;

    }

    if (!Op->Common.Node)

    {

        AcpiOsPrintf (

            " /**** Name not found or not accessible from this scope ****/ ");

    }

    ACPI_PARSE_OBJECT       *TargetOp;

    if ((!Name) ||

        (!Op->Common.Parent))

    {

        return;

    }

    TargetOp = AcpiPsFind (Op, Name, 0, 0);

    if (!TargetOp)

    {

        /*

         * Didn't find the name in the parse tree.  This may be

         * a problem, or it may simply be one of the predefined names

         * (such as _OS_).  Rather than worry about looking up all

         * the predefined names, just display the name as given

         */

        AcpiOsPrintf (

            " /**** Name not found or not accessible from this scope ****/ ");

    }

}

#endif

#endif