NetBSD-5.0.2/sys/dist/acpica/dmnames.c
/*******************************************************************************
*
* Module Name: dmnames - AML disassembler, names, namestrings, pathnames
* $Revision: 1.4 $
*
******************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2008, 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 "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 (
char *Name)
{
UINT32 i;
UINT32 Length;
char NewName[4];
/* Ensure that the name is printable, even if we have to fix it */
*(UINT32 *) NewName = AcpiUtRepairName (Name);
/* 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 ((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