0,0 → 1,311 |
/****************************************************************************** |
* |
* Module Name: dswscope - Scope stack manipulation |
* |
*****************************************************************************/ |
|
/****************************************************************************** |
* |
* 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 __DSWSCOPE_C__ |
|
#include "acpi.h" |
#include "accommon.h" |
#include "acdispat.h" |
|
|
#define _COMPONENT ACPI_DISPATCHER |
ACPI_MODULE_NAME ("dswscope") |
|
|
/**************************************************************************** |
* |
* FUNCTION: AcpiDsScopeStackClear |
* |
* PARAMETERS: WalkState - Current state |
* |
* RETURN: None |
* |
* DESCRIPTION: Pop (and free) everything on the scope stack except the |
* root scope object (which remains at the stack top.) |
* |
***************************************************************************/ |
|
void |
AcpiDsScopeStackClear ( |
ACPI_WALK_STATE *WalkState) |
{ |
ACPI_GENERIC_STATE *ScopeInfo; |
|
ACPI_FUNCTION_NAME (DsScopeStackClear); |
|
|
while (WalkState->ScopeInfo) |
{ |
/* Pop a scope off the stack */ |
|
ScopeInfo = WalkState->ScopeInfo; |
WalkState->ScopeInfo = ScopeInfo->Scope.Next; |
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
"Popped object type (%s)\n", |
AcpiUtGetTypeName (ScopeInfo->Common.Value))); |
AcpiUtDeleteGenericState (ScopeInfo); |
} |
} |
|
|
/**************************************************************************** |
* |
* FUNCTION: AcpiDsScopeStackPush |
* |
* PARAMETERS: Node - Name to be made current |
* Type - Type of frame being pushed |
* WalkState - Current state |
* |
* RETURN: Status |
* |
* DESCRIPTION: Push the current scope on the scope stack, and make the |
* passed Node current. |
* |
***************************************************************************/ |
|
ACPI_STATUS |
AcpiDsScopeStackPush ( |
ACPI_NAMESPACE_NODE *Node, |
ACPI_OBJECT_TYPE Type, |
ACPI_WALK_STATE *WalkState) |
{ |
ACPI_GENERIC_STATE *ScopeInfo; |
ACPI_GENERIC_STATE *OldScopeInfo; |
|
|
ACPI_FUNCTION_TRACE (DsScopeStackPush); |
|
|
if (!Node) |
{ |
/* Invalid scope */ |
|
ACPI_ERROR ((AE_INFO, "Null scope parameter")); |
return_ACPI_STATUS (AE_BAD_PARAMETER); |
} |
|
/* Make sure object type is valid */ |
|
if (!AcpiUtValidObjectType (Type)) |
{ |
ACPI_WARNING ((AE_INFO, |
"Invalid object type: 0x%X", Type)); |
} |
|
/* Allocate a new scope object */ |
|
ScopeInfo = AcpiUtCreateGenericState (); |
if (!ScopeInfo) |
{ |
return_ACPI_STATUS (AE_NO_MEMORY); |
} |
|
/* Init new scope object */ |
|
ScopeInfo->Common.DescriptorType = ACPI_DESC_TYPE_STATE_WSCOPE; |
ScopeInfo->Scope.Node = Node; |
ScopeInfo->Common.Value = (UINT16) Type; |
|
WalkState->ScopeDepth++; |
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
"[%.2d] Pushed scope ", (UINT32) WalkState->ScopeDepth)); |
|
OldScopeInfo = WalkState->ScopeInfo; |
if (OldScopeInfo) |
{ |
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_EXEC, |
"[%4.4s] (%s)", |
AcpiUtGetNodeName (OldScopeInfo->Scope.Node), |
AcpiUtGetTypeName (OldScopeInfo->Common.Value))); |
} |
else |
{ |
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_EXEC, |
"[\\___] (%s)", "ROOT")); |
} |
|
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_EXEC, |
", New scope -> [%4.4s] (%s)\n", |
AcpiUtGetNodeName (ScopeInfo->Scope.Node), |
AcpiUtGetTypeName (ScopeInfo->Common.Value))); |
|
/* Push new scope object onto stack */ |
|
AcpiUtPushGenericState (&WalkState->ScopeInfo, ScopeInfo); |
return_ACPI_STATUS (AE_OK); |
} |
|
|
/**************************************************************************** |
* |
* FUNCTION: AcpiDsScopeStackPop |
* |
* PARAMETERS: WalkState - Current state |
* |
* RETURN: Status |
* |
* DESCRIPTION: Pop the scope stack once. |
* |
***************************************************************************/ |
|
ACPI_STATUS |
AcpiDsScopeStackPop ( |
ACPI_WALK_STATE *WalkState) |
{ |
ACPI_GENERIC_STATE *ScopeInfo; |
ACPI_GENERIC_STATE *NewScopeInfo; |
|
|
ACPI_FUNCTION_TRACE (DsScopeStackPop); |
|
|
/* |
* Pop scope info object off the stack. |
*/ |
ScopeInfo = AcpiUtPopGenericState (&WalkState->ScopeInfo); |
if (!ScopeInfo) |
{ |
return_ACPI_STATUS (AE_STACK_UNDERFLOW); |
} |
|
WalkState->ScopeDepth--; |
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
"[%.2d] Popped scope [%4.4s] (%s), New scope -> ", |
(UINT32) WalkState->ScopeDepth, |
AcpiUtGetNodeName (ScopeInfo->Scope.Node), |
AcpiUtGetTypeName (ScopeInfo->Common.Value))); |
|
NewScopeInfo = WalkState->ScopeInfo; |
if (NewScopeInfo) |
{ |
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_EXEC, |
"[%4.4s] (%s)\n", |
AcpiUtGetNodeName (NewScopeInfo->Scope.Node), |
AcpiUtGetTypeName (NewScopeInfo->Common.Value))); |
} |
else |
{ |
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_EXEC, |
"[\\___] (ROOT)\n")); |
} |
|
AcpiUtDeleteGenericState (ScopeInfo); |
return_ACPI_STATUS (AE_OK); |
} |
|
|