dmnames.c

acpi tools for linux include acpiexec and acpixtract

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 ((char *) 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