diff options
Diffstat (limited to 'sys/contrib/dev/acpica/Subsystem/Dispatcher/dsmthdat.c')
| -rw-r--r-- | sys/contrib/dev/acpica/Subsystem/Dispatcher/dsmthdat.c | 897 |
1 files changed, 0 insertions, 897 deletions
diff --git a/sys/contrib/dev/acpica/Subsystem/Dispatcher/dsmthdat.c b/sys/contrib/dev/acpica/Subsystem/Dispatcher/dsmthdat.c deleted file mode 100644 index 0734ce6f2d1d..000000000000 --- a/sys/contrib/dev/acpica/Subsystem/Dispatcher/dsmthdat.c +++ /dev/null @@ -1,897 +0,0 @@ -/******************************************************************************* - * - * Module Name: dsmthdat - control method arguments and local variables - * $Revision: 39 $ - * - ******************************************************************************/ - -/****************************************************************************** - * - * 1. Copyright Notice - * - * Some or all of this work - Copyright (c) 1999, 2000, 2001, 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 __DSMTHDAT_C__ - -#include "acpi.h" -#include "acparser.h" -#include "acdispat.h" -#include "acinterp.h" -#include "amlcode.h" -#include "acnamesp.h" - - -#define _COMPONENT DISPATCHER - MODULE_NAME ("dsmthdat") - - -/******************************************************************************* - * - * FUNCTION: AcpiDsMethodDataInit - * - * PARAMETERS: WalkState - Current walk state object - * - * RETURN: Status - * - * DESCRIPTION: Initialize the data structures that hold the method's arguments - * and locals. The data struct is an array of NTEs for each. - * This allows RefOf and DeRefOf to work properly for these - * special data types. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiDsMethodDataInit ( - ACPI_WALK_STATE *WalkState) -{ - UINT32 i; - - - FUNCTION_TRACE ("DsMethodDataInit"); - - /* - * WalkState fields are initialized to zero by the - * AcpiCmCallocate(). - * - * An Node is assigned to each argument and local so - * that RefOf() can return a pointer to the Node. - */ - - /* Init the method arguments */ - - for (i = 0; i < MTH_NUM_ARGS; i++) - { - MOVE_UNALIGNED32_TO_32 (&WalkState->Arguments[i].Name, - NAMEOF_ARG_NTE); - WalkState->Arguments[i].Name |= (i << 24); - WalkState->Arguments[i].DataType = ACPI_DESC_TYPE_NAMED; - WalkState->Arguments[i].Type = ACPI_TYPE_ANY; - WalkState->Arguments[i].Flags = ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_ARG; - } - - /* Init the method locals */ - - for (i = 0; i < MTH_NUM_LOCALS; i++) - { - MOVE_UNALIGNED32_TO_32 (&WalkState->LocalVariables[i].Name, - NAMEOF_LOCAL_NTE); - - WalkState->LocalVariables[i].Name |= (i << 24); - WalkState->LocalVariables[i].DataType = ACPI_DESC_TYPE_NAMED; - WalkState->LocalVariables[i].Type = ACPI_TYPE_ANY; - WalkState->LocalVariables[i].Flags = ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_LOCAL; - } - - return_ACPI_STATUS (AE_OK); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiDsMethodDataDeleteAll - * - * PARAMETERS: WalkState - Current walk state object - * - * RETURN: Status - * - * DESCRIPTION: Delete method locals and arguments. Arguments are only - * deleted if this method was called from another method. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiDsMethodDataDeleteAll ( - ACPI_WALK_STATE *WalkState) -{ - UINT32 Index; - ACPI_OPERAND_OBJECT *Object; - - - FUNCTION_TRACE ("DsMethodDataDeleteAll"); - - - /* Delete the locals */ - - DEBUG_PRINT (ACPI_INFO, - ("MethodDeleteAll: Deleting local variables in %p\n", WalkState)); - - for (Index = 0; Index < MTH_NUM_LOCALS; Index++) - { - Object = WalkState->LocalVariables[Index].Object; - if (Object) - { - DEBUG_PRINT (TRACE_EXEC, - ("MethodDeleteAll: Deleting Local%d=%p\n", Index, Object)); - - /* Remove first */ - - WalkState->LocalVariables[Index].Object = NULL; - - /* Was given a ref when stored */ - - AcpiCmRemoveReference (Object); - } - } - - - /* Delete the arguments */ - - DEBUG_PRINT (ACPI_INFO, - ("MethodDeleteAll: Deleting arguments in %p\n", WalkState)); - - for (Index = 0; Index < MTH_NUM_ARGS; Index++) - { - Object = WalkState->Arguments[Index].Object; - if (Object) - { - DEBUG_PRINT (TRACE_EXEC, - ("MethodDeleteAll: Deleting Arg%d=%p\n", Index, Object)); - - /* Remove first */ - - WalkState->Arguments[Index].Object = NULL; - - /* Was given a ref when stored */ - - AcpiCmRemoveReference (Object); - } - } - - return_ACPI_STATUS (AE_OK); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiDsMethodDataInitArgs - * - * PARAMETERS: *Params - Pointer to a parameter list for the method - * MaxParamCount - The arg count for this method - * WalkState - Current walk state object - * - * RETURN: Status - * - * DESCRIPTION: Initialize arguments for a method - * - ******************************************************************************/ - -ACPI_STATUS -AcpiDsMethodDataInitArgs ( - ACPI_OPERAND_OBJECT **Params, - UINT32 MaxParamCount, - ACPI_WALK_STATE *WalkState) -{ - ACPI_STATUS Status; - UINT32 Mindex; - UINT32 Pindex; - - - FUNCTION_TRACE_PTR ("DsMethodDataInitArgs", Params); - - - if (!Params) - { - DEBUG_PRINT (TRACE_EXEC, - ("DsMethodDataInitArgs: No param list passed to method\n")); - return_ACPI_STATUS (AE_OK); - } - - /* Copy passed parameters into the new method stack frame */ - - for (Pindex = Mindex = 0; - (Mindex < MTH_NUM_ARGS) && (Pindex < MaxParamCount); - Mindex++) - { - if (Params[Pindex]) - { - /* - * A valid parameter. - * Set the current method argument to the - * Params[Pindex++] argument object descriptor - */ - Status = AcpiDsMethodDataSetValue (MTH_TYPE_ARG, Mindex, - Params[Pindex], WalkState); - if (ACPI_FAILURE (Status)) - { - break; - } - - Pindex++; - } - - else - { - break; - } - } - - DEBUG_PRINT (TRACE_EXEC, - ("DsMethodDataInitArgs: %d args passed to method\n", Pindex)); - return_ACPI_STATUS (AE_OK); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiDsMethodDataGetEntry - * - * PARAMETERS: Type - Either MTH_TYPE_LOCAL or MTH_TYPE_ARG - * Index - Which localVar or argument to get - * Entry - Pointer to where a pointer to the stack - * entry is returned. - * WalkState - Current walk state object - * - * RETURN: Status - * - * DESCRIPTION: Get the address of the stack entry given by Type:Index - * - ******************************************************************************/ - -ACPI_STATUS -AcpiDsMethodDataGetEntry ( - UINT32 Type, - UINT32 Index, - ACPI_WALK_STATE *WalkState, - ACPI_OPERAND_OBJECT ***Entry) -{ - - FUNCTION_TRACE_U32 ("DsMethodDataGetEntry", Index); - - - /* - * Get the requested object. - * The stack "Type" is either a LocalVariable or an Argument - */ - - switch (Type) - { - - case MTH_TYPE_LOCAL: - - if (Index > MTH_MAX_LOCAL) - { - DEBUG_PRINT (ACPI_ERROR, - ("DsMethodDataGetEntry: LocalVar index %d is invalid (max %d)\n", - Index, MTH_MAX_LOCAL)); - return_ACPI_STATUS (AE_BAD_PARAMETER); - } - - *Entry = - (ACPI_OPERAND_OBJECT **) &WalkState->LocalVariables[Index].Object; - break; - - - case MTH_TYPE_ARG: - - if (Index > MTH_MAX_ARG) - { - DEBUG_PRINT (ACPI_ERROR, - ("DsMethodDataGetEntry: Argument index %d is invalid (max %d)\n", - Index, MTH_MAX_ARG)); - return_ACPI_STATUS (AE_BAD_PARAMETER); - } - - *Entry = - (ACPI_OPERAND_OBJECT **) &WalkState->Arguments[Index].Object; - break; - - - default: - DEBUG_PRINT (ACPI_ERROR, - ("DsMethodDataGetEntry: Stack type %d is invalid\n", - Type)); - return_ACPI_STATUS (AE_BAD_PARAMETER); - } - - - return_ACPI_STATUS (AE_OK); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiDsMethodDataSetEntry - * - * PARAMETERS: Type - Either MTH_TYPE_LOCAL or MTH_TYPE_ARG - * Index - Which localVar or argument to get - * Object - Object to be inserted into the stack entry - * WalkState - Current walk state object - * - * RETURN: Status - * - * DESCRIPTION: Insert an object onto the method stack at entry Type:Index. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiDsMethodDataSetEntry ( - UINT32 Type, - UINT32 Index, - ACPI_OPERAND_OBJECT *Object, - ACPI_WALK_STATE *WalkState) -{ - ACPI_STATUS Status; - ACPI_OPERAND_OBJECT **Entry; - - - FUNCTION_TRACE ("DsMethodDataSetEntry"); - - /* Get a pointer to the stack entry to set */ - - Status = AcpiDsMethodDataGetEntry (Type, Index, WalkState, &Entry); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - - /* Increment ref count so object can't be deleted while installed */ - - AcpiCmAddReference (Object); - - /* Install the object into the stack entry */ - - *Entry = Object; - - return_ACPI_STATUS (AE_OK); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiDsMethodDataGetType - * - * PARAMETERS: Type - Either MTH_TYPE_LOCAL or MTH_TYPE_ARG - * Index - Which localVar or argument whose type - * to get - * WalkState - Current walk state object - * - * RETURN: Data type of selected Arg or Local - * Used only in ExecMonadic2()/TypeOp. - * - ******************************************************************************/ - -OBJECT_TYPE_INTERNAL -AcpiDsMethodDataGetType ( - UINT32 Type, - UINT32 Index, - ACPI_WALK_STATE *WalkState) -{ - ACPI_STATUS Status; - ACPI_OPERAND_OBJECT **Entry; - ACPI_OPERAND_OBJECT *Object; - - - FUNCTION_TRACE ("DsMethodDataGetType"); - - - /* Get a pointer to the requested stack entry */ - - Status = AcpiDsMethodDataGetEntry (Type, Index, WalkState, &Entry); - if (ACPI_FAILURE (Status)) - { - return_VALUE ((ACPI_TYPE_NOT_FOUND)); - } - - /* Get the object from the method stack */ - - Object = *Entry; - - /* Get the object type */ - - if (!Object) - { - /* Any == 0 => "uninitialized" -- see spec 15.2.3.5.2.28 */ - return_VALUE (ACPI_TYPE_ANY); - } - - return_VALUE (Object->Common.Type); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiDsMethodDataGetNte - * - * PARAMETERS: Type - Either MTH_TYPE_LOCAL or MTH_TYPE_ARG - * Index - Which localVar or argument whose type - * to get - * WalkState - Current walk state object - * - * RETURN: Get the Node associated with a local or arg. - * - ******************************************************************************/ - -ACPI_NAMESPACE_NODE * -AcpiDsMethodDataGetNte ( - UINT32 Type, - UINT32 Index, - ACPI_WALK_STATE *WalkState) -{ - ACPI_NAMESPACE_NODE *Node = NULL; - - - FUNCTION_TRACE ("DsMethodDataGetNte"); - - - switch (Type) - { - - case MTH_TYPE_LOCAL: - - if (Index > MTH_MAX_LOCAL) - { - DEBUG_PRINT (ACPI_ERROR, - ("DsMethodDataGetEntry: LocalVar index %d is invalid (max %d)\n", - Index, MTH_MAX_LOCAL)); - return_PTR (Node); - } - - Node = &WalkState->LocalVariables[Index]; - break; - - - case MTH_TYPE_ARG: - - if (Index > MTH_MAX_ARG) - { - DEBUG_PRINT (ACPI_ERROR, - ("DsMethodDataGetEntry: Argument index %d is invalid (max %d)\n", - Index, MTH_MAX_ARG)); - return_PTR (Node); - } - - Node = &WalkState->Arguments[Index]; - break; - - - default: - DEBUG_PRINT (ACPI_ERROR, - ("DsMethodDataGetEntry: Stack type %d is invalid\n", - Type)); - break; - } - - - return_PTR (Node); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiDsMethodDataGetValue - * - * PARAMETERS: Type - Either MTH_TYPE_LOCAL or MTH_TYPE_ARG - * Index - Which localVar or argument to get - * WalkState - Current walk state object - * *DestDesc - Ptr to Descriptor into which selected Arg - * or Local value should be copied - * - * RETURN: Status - * - * DESCRIPTION: Retrieve value of selected Arg or Local from the method frame - * at the current top of the method stack. - * Used only in AcpiAmlResolveToValue(). - * - ******************************************************************************/ - -ACPI_STATUS -AcpiDsMethodDataGetValue ( - UINT32 Type, - UINT32 Index, - ACPI_WALK_STATE *WalkState, - ACPI_OPERAND_OBJECT **DestDesc) -{ - ACPI_STATUS Status; - ACPI_OPERAND_OBJECT **Entry; - ACPI_OPERAND_OBJECT *Object; - - - FUNCTION_TRACE ("DsMethodDataGetValue"); - - - /* Validate the object descriptor */ - - if (!DestDesc) - { - DEBUG_PRINT (ACPI_ERROR, - ("DsMethodDataGetValue: NULL object descriptor pointer\n")); - return_ACPI_STATUS (AE_BAD_PARAMETER); - } - - - /* Get a pointer to the requested method stack entry */ - - Status = AcpiDsMethodDataGetEntry (Type, Index, WalkState, &Entry); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - - /* Get the object from the method stack */ - - Object = *Entry; - - - /* Examine the returned object, it must be valid. */ - - if (!Object) - { - /* - * Index points to uninitialized object stack value. - * This means that either 1) The expected argument was - * not passed to the method, or 2) A local variable - * was referenced by the method (via the ASL) - * before it was initialized. Either case is an error. - */ - - switch (Type) - { - case MTH_TYPE_ARG: - - DEBUG_PRINT (ACPI_ERROR, - ("DsMethodDataGetValue: Uninitialized Arg[%d] at entry %p\n", - Index, Entry)); - - return_ACPI_STATUS (AE_AML_UNINITIALIZED_ARG); - break; - - case MTH_TYPE_LOCAL: - - DEBUG_PRINT (ACPI_ERROR, - ("DsMethodDataGetValue: Uninitialized Local[%d] at entry %p\n", - Index, Entry)); - - return_ACPI_STATUS (AE_AML_UNINITIALIZED_LOCAL); - break; - } - } - - - /* - * Index points to initialized and valid object stack value. - * Return an additional reference to the object - */ - - *DestDesc = Object; - AcpiCmAddReference (Object); - - return_ACPI_STATUS (AE_OK); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiDsMethodDataDeleteValue - * - * PARAMETERS: Type - Either MTH_TYPE_LOCAL or MTH_TYPE_ARG - * Index - Which localVar or argument to delete - * WalkState - Current walk state object - * - * RETURN: Status - * - * DESCRIPTION: Delete the entry at Type:Index on the method stack. Inserts - * a null into the stack slot after the object is deleted. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiDsMethodDataDeleteValue ( - UINT32 Type, - UINT32 Index, - ACPI_WALK_STATE *WalkState) -{ - ACPI_STATUS Status; - ACPI_OPERAND_OBJECT **Entry; - ACPI_OPERAND_OBJECT *Object; - - - FUNCTION_TRACE ("DsMethodDataDeleteValue"); - - - /* Get a pointer to the requested entry */ - - Status = AcpiDsMethodDataGetEntry (Type, Index, WalkState, &Entry); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - - /* Get the current entry in this slot k */ - - Object = *Entry; - - /* - * Undefine the Arg or Local by setting its descriptor - * pointer to NULL. Locals/Args can contain both - * ACPI_OPERAND_OBJECTS and ACPI_NAMESPACE_NODEs - */ - *Entry = NULL; - - - if ((Object) && - (VALID_DESCRIPTOR_TYPE (Object, ACPI_DESC_TYPE_INTERNAL))) - { - /* - * There is a valid object in this slot - * Decrement the reference count by one to balance the - * increment when the object was stored in the slot. - */ - AcpiCmRemoveReference (Object); - } - - - return_ACPI_STATUS (AE_OK); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiDsMethodDataSetValue - * - * PARAMETERS: Type - Either MTH_TYPE_LOCAL or MTH_TYPE_ARG - * Index - Which localVar or argument to set - * SrcDesc - Value to be stored - * WalkState - Current walk state - * - * RETURN: Status - * - * DESCRIPTION: Store a value in an Arg or Local. The SrcDesc is installed - * as the new value for the Arg or Local and the reference count - * for SrcDesc is incremented. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiDsMethodDataSetValue ( - UINT32 Type, - UINT32 Index, - ACPI_OPERAND_OBJECT *SrcDesc, - ACPI_WALK_STATE *WalkState) -{ - ACPI_STATUS Status; - ACPI_OPERAND_OBJECT **Entry; - - - FUNCTION_TRACE ("DsMethodDataSetValue"); - DEBUG_PRINT (TRACE_EXEC, - ("DsMethodDataSetValue: Type=%d Idx=%d Obj=%p\n", - Type, Index, SrcDesc)); - - - /* Parameter validation */ - - if (!SrcDesc) - { - return_ACPI_STATUS (AE_BAD_PARAMETER); - } - - - /* Get a pointer to the requested method stack entry */ - - Status = AcpiDsMethodDataGetEntry (Type, Index, WalkState, &Entry); - if (ACPI_FAILURE (Status)) - { - goto Cleanup; - } - - if (*Entry == SrcDesc) - { - DEBUG_PRINT (TRACE_EXEC, - ("DsMethodDataSetValue: Obj=%p already installed!\n", - SrcDesc)); - goto Cleanup; - } - - - /* - * If there is an object already in this slot, we either - * have to delete it, or if this is an argument and there - * is an object reference stored there, we have to do - * an indirect store! - */ - - if (*Entry) - { - /* - * Check for an indirect store if an argument - * contains an object reference (stored as an Node). - * We don't allow this automatic dereferencing for - * locals, since a store to a local should overwrite - * anything there, including an object reference. - * - * If both Arg0 and Local0 contain RefOf (Local4): - * - * Store (1, Arg0) - Causes indirect store to local4 - * Store (1, Local0) - Stores 1 in local0, overwriting - * the reference to local4 - * Store (1, DeRefof (Local0)) - Causes indirect store to local4 - * - * Weird, but true. - */ - - if ((Type == MTH_TYPE_ARG) && - (VALID_DESCRIPTOR_TYPE (*Entry, ACPI_DESC_TYPE_NAMED))) - { - DEBUG_PRINT (TRACE_EXEC, - ("DsMethodDataSetValue: Arg (%p) is an ObjRef(Node), storing in %p\n", - SrcDesc, *Entry)); - - /* Detach an existing object from the Node */ - - AcpiNsDetachObject ((ACPI_NAMESPACE_NODE *) *Entry); - - /* - * Store this object into the Node - * (do the indirect store) - */ - Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) *Entry, SrcDesc, - SrcDesc->Common.Type); - return_ACPI_STATUS (Status); - } - - - /* - * Perform "Implicit conversion" of the new object to the type of the - * existing object - */ - Status = AcpiAmlConvertToTargetType ((*Entry)->Common.Type, &SrcDesc, WalkState); - if (ACPI_FAILURE (Status)) - { - goto Cleanup; - } - - /* - * Delete the existing object - * before storing the new one - */ - AcpiDsMethodDataDeleteValue (Type, Index, WalkState); - } - - - /* - * Install the ObjStack descriptor (*SrcDesc) into - * the descriptor for the Arg or Local. - * Install the new object in the stack entry - * (increments the object reference count by one) - */ - Status = AcpiDsMethodDataSetEntry (Type, Index, SrcDesc, WalkState); - if (ACPI_FAILURE (Status)) - { - goto Cleanup; - } - - /* Normal exit */ - - return_ACPI_STATUS (AE_OK); - - - /* Error exit */ - -Cleanup: - - return_ACPI_STATUS (Status); -} - |