0,0 → 1,1619 |
/****************************************************************************** |
* |
* Module Name: dsopcode - Dispatcher Op Region support and handling of |
* "control" opcodes |
* |
*****************************************************************************/ |
|
/****************************************************************************** |
* |
* 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 __DSOPCODE_C__ |
|
#include "acpi.h" |
#include "accommon.h" |
#include "acparser.h" |
#include "amlcode.h" |
#include "acdispat.h" |
#include "acinterp.h" |
#include "acnamesp.h" |
#include "acevents.h" |
#include "actables.h" |
|
#define _COMPONENT ACPI_DISPATCHER |
ACPI_MODULE_NAME ("dsopcode") |
|
/* Local prototypes */ |
|
static ACPI_STATUS |
AcpiDsExecuteArguments ( |
ACPI_NAMESPACE_NODE *Node, |
ACPI_NAMESPACE_NODE *ScopeNode, |
UINT32 AmlLength, |
UINT8 *AmlStart); |
|
static ACPI_STATUS |
AcpiDsInitBufferField ( |
UINT16 AmlOpcode, |
ACPI_OPERAND_OBJECT *ObjDesc, |
ACPI_OPERAND_OBJECT *BufferDesc, |
ACPI_OPERAND_OBJECT *OffsetDesc, |
ACPI_OPERAND_OBJECT *LengthDesc, |
ACPI_OPERAND_OBJECT *ResultDesc); |
|
|
/******************************************************************************* |
* |
* FUNCTION: AcpiDsExecuteArguments |
* |
* PARAMETERS: Node - Object NS node |
* ScopeNode - Parent NS node |
* AmlLength - Length of executable AML |
* AmlStart - Pointer to the AML |
* |
* RETURN: Status. |
* |
* DESCRIPTION: Late (deferred) execution of region or field arguments |
* |
******************************************************************************/ |
|
static ACPI_STATUS |
AcpiDsExecuteArguments ( |
ACPI_NAMESPACE_NODE *Node, |
ACPI_NAMESPACE_NODE *ScopeNode, |
UINT32 AmlLength, |
UINT8 *AmlStart) |
{ |
ACPI_STATUS Status; |
ACPI_PARSE_OBJECT *Op; |
ACPI_WALK_STATE *WalkState; |
|
|
ACPI_FUNCTION_TRACE (DsExecuteArguments); |
|
|
/* |
* Allocate a new parser op to be the root of the parsed tree |
*/ |
Op = AcpiPsAllocOp (AML_INT_EVAL_SUBTREE_OP); |
if (!Op) |
{ |
return_ACPI_STATUS (AE_NO_MEMORY); |
} |
|
/* Save the Node for use in AcpiPsParseAml */ |
|
Op->Common.Node = ScopeNode; |
|
/* Create and initialize a new parser state */ |
|
WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL); |
if (!WalkState) |
{ |
Status = AE_NO_MEMORY; |
goto Cleanup; |
} |
|
Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, AmlStart, |
AmlLength, NULL, ACPI_IMODE_LOAD_PASS1); |
if (ACPI_FAILURE (Status)) |
{ |
AcpiDsDeleteWalkState (WalkState); |
goto Cleanup; |
} |
|
/* Mark this parse as a deferred opcode */ |
|
WalkState->ParseFlags = ACPI_PARSE_DEFERRED_OP; |
WalkState->DeferredNode = Node; |
|
/* Pass1: Parse the entire declaration */ |
|
Status = AcpiPsParseAml (WalkState); |
if (ACPI_FAILURE (Status)) |
{ |
goto Cleanup; |
} |
|
/* Get and init the Op created above */ |
|
Op->Common.Node = Node; |
AcpiPsDeleteParseTree (Op); |
|
/* Evaluate the deferred arguments */ |
|
Op = AcpiPsAllocOp (AML_INT_EVAL_SUBTREE_OP); |
if (!Op) |
{ |
return_ACPI_STATUS (AE_NO_MEMORY); |
} |
|
Op->Common.Node = ScopeNode; |
|
/* Create and initialize a new parser state */ |
|
WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL); |
if (!WalkState) |
{ |
Status = AE_NO_MEMORY; |
goto Cleanup; |
} |
|
/* Execute the opcode and arguments */ |
|
Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, AmlStart, |
AmlLength, NULL, ACPI_IMODE_EXECUTE); |
if (ACPI_FAILURE (Status)) |
{ |
AcpiDsDeleteWalkState (WalkState); |
goto Cleanup; |
} |
|
/* Mark this execution as a deferred opcode */ |
|
WalkState->DeferredNode = Node; |
Status = AcpiPsParseAml (WalkState); |
|
Cleanup: |
AcpiPsDeleteParseTree (Op); |
return_ACPI_STATUS (Status); |
} |
|
|
/******************************************************************************* |
* |
* FUNCTION: AcpiDsGetBufferFieldArguments |
* |
* PARAMETERS: ObjDesc - A valid BufferField object |
* |
* RETURN: Status. |
* |
* DESCRIPTION: Get BufferField Buffer and Index. This implements the late |
* evaluation of these field attributes. |
* |
******************************************************************************/ |
|
ACPI_STATUS |
AcpiDsGetBufferFieldArguments ( |
ACPI_OPERAND_OBJECT *ObjDesc) |
{ |
ACPI_OPERAND_OBJECT *ExtraDesc; |
ACPI_NAMESPACE_NODE *Node; |
ACPI_STATUS Status; |
|
|
ACPI_FUNCTION_TRACE_PTR (DsGetBufferFieldArguments, ObjDesc); |
|
|
if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID) |
{ |
return_ACPI_STATUS (AE_OK); |
} |
|
/* Get the AML pointer (method object) and BufferField node */ |
|
ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc); |
Node = ObjDesc->BufferField.Node; |
|
ACPI_DEBUG_EXEC(AcpiUtDisplayInitPathname (ACPI_TYPE_BUFFER_FIELD, Node, NULL)); |
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] BufferField Arg Init\n", |
AcpiUtGetNodeName (Node))); |
|
/* Execute the AML code for the TermArg arguments */ |
|
Status = AcpiDsExecuteArguments (Node, Node->Parent, |
ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart); |
return_ACPI_STATUS (Status); |
} |
|
|
/******************************************************************************* |
* |
* FUNCTION: AcpiDsGetBankFieldArguments |
* |
* PARAMETERS: ObjDesc - A valid BankField object |
* |
* RETURN: Status. |
* |
* DESCRIPTION: Get BankField BankValue. This implements the late |
* evaluation of these field attributes. |
* |
******************************************************************************/ |
|
ACPI_STATUS |
AcpiDsGetBankFieldArguments ( |
ACPI_OPERAND_OBJECT *ObjDesc) |
{ |
ACPI_OPERAND_OBJECT *ExtraDesc; |
ACPI_NAMESPACE_NODE *Node; |
ACPI_STATUS Status; |
|
|
ACPI_FUNCTION_TRACE_PTR (DsGetBankFieldArguments, ObjDesc); |
|
|
if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID) |
{ |
return_ACPI_STATUS (AE_OK); |
} |
|
/* Get the AML pointer (method object) and BankField node */ |
|
ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc); |
Node = ObjDesc->BankField.Node; |
|
ACPI_DEBUG_EXEC(AcpiUtDisplayInitPathname (ACPI_TYPE_LOCAL_BANK_FIELD, Node, NULL)); |
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] BankField Arg Init\n", |
AcpiUtGetNodeName (Node))); |
|
/* Execute the AML code for the TermArg arguments */ |
|
Status = AcpiDsExecuteArguments (Node, Node->Parent, |
ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart); |
return_ACPI_STATUS (Status); |
} |
|
|
/******************************************************************************* |
* |
* FUNCTION: AcpiDsGetBufferArguments |
* |
* PARAMETERS: ObjDesc - A valid Buffer object |
* |
* RETURN: Status. |
* |
* DESCRIPTION: Get Buffer length and initializer byte list. This implements |
* the late evaluation of these attributes. |
* |
******************************************************************************/ |
|
ACPI_STATUS |
AcpiDsGetBufferArguments ( |
ACPI_OPERAND_OBJECT *ObjDesc) |
{ |
ACPI_NAMESPACE_NODE *Node; |
ACPI_STATUS Status; |
|
|
ACPI_FUNCTION_TRACE_PTR (DsGetBufferArguments, ObjDesc); |
|
|
if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID) |
{ |
return_ACPI_STATUS (AE_OK); |
} |
|
/* Get the Buffer node */ |
|
Node = ObjDesc->Buffer.Node; |
if (!Node) |
{ |
ACPI_ERROR ((AE_INFO, |
"No pointer back to namespace node in buffer object %p", ObjDesc)); |
return_ACPI_STATUS (AE_AML_INTERNAL); |
} |
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Buffer Arg Init\n")); |
|
/* Execute the AML code for the TermArg arguments */ |
|
Status = AcpiDsExecuteArguments (Node, Node, |
ObjDesc->Buffer.AmlLength, ObjDesc->Buffer.AmlStart); |
return_ACPI_STATUS (Status); |
} |
|
|
/******************************************************************************* |
* |
* FUNCTION: AcpiDsGetPackageArguments |
* |
* PARAMETERS: ObjDesc - A valid Package object |
* |
* RETURN: Status. |
* |
* DESCRIPTION: Get Package length and initializer byte list. This implements |
* the late evaluation of these attributes. |
* |
******************************************************************************/ |
|
ACPI_STATUS |
AcpiDsGetPackageArguments ( |
ACPI_OPERAND_OBJECT *ObjDesc) |
{ |
ACPI_NAMESPACE_NODE *Node; |
ACPI_STATUS Status; |
|
|
ACPI_FUNCTION_TRACE_PTR (DsGetPackageArguments, ObjDesc); |
|
|
if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID) |
{ |
return_ACPI_STATUS (AE_OK); |
} |
|
/* Get the Package node */ |
|
Node = ObjDesc->Package.Node; |
if (!Node) |
{ |
ACPI_ERROR ((AE_INFO, |
"No pointer back to namespace node in package %p", ObjDesc)); |
return_ACPI_STATUS (AE_AML_INTERNAL); |
} |
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Package Arg Init\n")); |
|
/* Execute the AML code for the TermArg arguments */ |
|
Status = AcpiDsExecuteArguments (Node, Node, |
ObjDesc->Package.AmlLength, ObjDesc->Package.AmlStart); |
return_ACPI_STATUS (Status); |
} |
|
|
/***************************************************************************** |
* |
* FUNCTION: AcpiDsGetRegionArguments |
* |
* PARAMETERS: ObjDesc - A valid region object |
* |
* RETURN: Status. |
* |
* DESCRIPTION: Get region address and length. This implements the late |
* evaluation of these region attributes. |
* |
****************************************************************************/ |
|
ACPI_STATUS |
AcpiDsGetRegionArguments ( |
ACPI_OPERAND_OBJECT *ObjDesc) |
{ |
ACPI_NAMESPACE_NODE *Node; |
ACPI_STATUS Status; |
ACPI_OPERAND_OBJECT *ExtraDesc; |
|
|
ACPI_FUNCTION_TRACE_PTR (DsGetRegionArguments, ObjDesc); |
|
|
if (ObjDesc->Region.Flags & AOPOBJ_DATA_VALID) |
{ |
return_ACPI_STATUS (AE_OK); |
} |
|
ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc); |
if (!ExtraDesc) |
{ |
return_ACPI_STATUS (AE_NOT_EXIST); |
} |
|
/* Get the Region node */ |
|
Node = ObjDesc->Region.Node; |
|
ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_REGION, Node, NULL)); |
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] OpRegion Arg Init at AML %p\n", |
AcpiUtGetNodeName (Node), ExtraDesc->Extra.AmlStart)); |
|
/* Execute the argument AML */ |
|
Status = AcpiDsExecuteArguments (Node, Node->Parent, |
ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart); |
return_ACPI_STATUS (Status); |
} |
|
|
/******************************************************************************* |
* |
* FUNCTION: AcpiDsInitializeRegion |
* |
* PARAMETERS: ObjHandle - Region namespace node |
* |
* RETURN: Status |
* |
* DESCRIPTION: Front end to EvInitializeRegion |
* |
******************************************************************************/ |
|
ACPI_STATUS |
AcpiDsInitializeRegion ( |
ACPI_HANDLE ObjHandle) |
{ |
ACPI_OPERAND_OBJECT *ObjDesc; |
ACPI_STATUS Status; |
|
|
ObjDesc = AcpiNsGetAttachedObject (ObjHandle); |
|
/* Namespace is NOT locked */ |
|
Status = AcpiEvInitializeRegion (ObjDesc, FALSE); |
return (Status); |
} |
|
|
/******************************************************************************* |
* |
* FUNCTION: AcpiDsInitBufferField |
* |
* PARAMETERS: AmlOpcode - CreateXxxField |
* ObjDesc - BufferField object |
* BufferDesc - Host Buffer |
* OffsetDesc - Offset into buffer |
* LengthDesc - Length of field (CREATE_FIELD_OP only) |
* ResultDesc - Where to store the result |
* |
* RETURN: Status |
* |
* DESCRIPTION: Perform actual initialization of a buffer field |
* |
******************************************************************************/ |
|
static ACPI_STATUS |
AcpiDsInitBufferField ( |
UINT16 AmlOpcode, |
ACPI_OPERAND_OBJECT *ObjDesc, |
ACPI_OPERAND_OBJECT *BufferDesc, |
ACPI_OPERAND_OBJECT *OffsetDesc, |
ACPI_OPERAND_OBJECT *LengthDesc, |
ACPI_OPERAND_OBJECT *ResultDesc) |
{ |
UINT32 Offset; |
UINT32 BitOffset; |
UINT32 BitCount; |
UINT8 FieldFlags; |
ACPI_STATUS Status; |
|
|
ACPI_FUNCTION_TRACE_PTR (DsInitBufferField, ObjDesc); |
|
|
/* Host object must be a Buffer */ |
|
if (BufferDesc->Common.Type != ACPI_TYPE_BUFFER) |
{ |
ACPI_ERROR ((AE_INFO, |
"Target of Create Field is not a Buffer object - %s", |
AcpiUtGetObjectTypeName (BufferDesc))); |
|
Status = AE_AML_OPERAND_TYPE; |
goto Cleanup; |
} |
|
/* |
* The last parameter to all of these opcodes (ResultDesc) started |
* out as a NameString, and should therefore now be a NS node |
* after resolution in AcpiExResolveOperands(). |
*/ |
if (ACPI_GET_DESCRIPTOR_TYPE (ResultDesc) != ACPI_DESC_TYPE_NAMED) |
{ |
ACPI_ERROR ((AE_INFO, |
"(%s) destination not a NS Node [%s]", |
AcpiPsGetOpcodeName (AmlOpcode), |
AcpiUtGetDescriptorName (ResultDesc))); |
|
Status = AE_AML_OPERAND_TYPE; |
goto Cleanup; |
} |
|
Offset = (UINT32) OffsetDesc->Integer.Value; |
|
/* |
* Setup the Bit offsets and counts, according to the opcode |
*/ |
switch (AmlOpcode) |
{ |
case AML_CREATE_FIELD_OP: |
|
/* Offset is in bits, count is in bits */ |
|
FieldFlags = AML_FIELD_ACCESS_BYTE; |
BitOffset = Offset; |
BitCount = (UINT32) LengthDesc->Integer.Value; |
|
/* Must have a valid (>0) bit count */ |
|
if (BitCount == 0) |
{ |
ACPI_ERROR ((AE_INFO, |
"Attempt to CreateField of length zero")); |
Status = AE_AML_OPERAND_VALUE; |
goto Cleanup; |
} |
break; |
|
case AML_CREATE_BIT_FIELD_OP: |
|
/* Offset is in bits, Field is one bit */ |
|
BitOffset = Offset; |
BitCount = 1; |
FieldFlags = AML_FIELD_ACCESS_BYTE; |
break; |
|
case AML_CREATE_BYTE_FIELD_OP: |
|
/* Offset is in bytes, field is one byte */ |
|
BitOffset = 8 * Offset; |
BitCount = 8; |
FieldFlags = AML_FIELD_ACCESS_BYTE; |
break; |
|
case AML_CREATE_WORD_FIELD_OP: |
|
/* Offset is in bytes, field is one word */ |
|
BitOffset = 8 * Offset; |
BitCount = 16; |
FieldFlags = AML_FIELD_ACCESS_WORD; |
break; |
|
case AML_CREATE_DWORD_FIELD_OP: |
|
/* Offset is in bytes, field is one dword */ |
|
BitOffset = 8 * Offset; |
BitCount = 32; |
FieldFlags = AML_FIELD_ACCESS_DWORD; |
break; |
|
case AML_CREATE_QWORD_FIELD_OP: |
|
/* Offset is in bytes, field is one qword */ |
|
BitOffset = 8 * Offset; |
BitCount = 64; |
FieldFlags = AML_FIELD_ACCESS_QWORD; |
break; |
|
default: |
|
ACPI_ERROR ((AE_INFO, |
"Unknown field creation opcode 0x%02X", |
AmlOpcode)); |
Status = AE_AML_BAD_OPCODE; |
goto Cleanup; |
} |
|
/* Entire field must fit within the current length of the buffer */ |
|
if ((BitOffset + BitCount) > |
(8 * (UINT32) BufferDesc->Buffer.Length)) |
{ |
ACPI_ERROR ((AE_INFO, |
"Field [%4.4s] at %u exceeds Buffer [%4.4s] size %u (bits)", |
AcpiUtGetNodeName (ResultDesc), |
BitOffset + BitCount, |
AcpiUtGetNodeName (BufferDesc->Buffer.Node), |
8 * (UINT32) BufferDesc->Buffer.Length)); |
Status = AE_AML_BUFFER_LIMIT; |
goto Cleanup; |
} |
|
/* |
* Initialize areas of the field object that are common to all fields |
* For FieldFlags, use LOCK_RULE = 0 (NO_LOCK), |
* UPDATE_RULE = 0 (UPDATE_PRESERVE) |
*/ |
Status = AcpiExPrepCommonFieldObject (ObjDesc, FieldFlags, 0, |
BitOffset, BitCount); |
if (ACPI_FAILURE (Status)) |
{ |
goto Cleanup; |
} |
|
ObjDesc->BufferField.BufferObj = BufferDesc; |
|
/* Reference count for BufferDesc inherits ObjDesc count */ |
|
BufferDesc->Common.ReferenceCount = (UINT16) |
(BufferDesc->Common.ReferenceCount + ObjDesc->Common.ReferenceCount); |
|
|
Cleanup: |
|
/* Always delete the operands */ |
|
AcpiUtRemoveReference (OffsetDesc); |
AcpiUtRemoveReference (BufferDesc); |
|
if (AmlOpcode == AML_CREATE_FIELD_OP) |
{ |
AcpiUtRemoveReference (LengthDesc); |
} |
|
/* On failure, delete the result descriptor */ |
|
if (ACPI_FAILURE (Status)) |
{ |
AcpiUtRemoveReference (ResultDesc); /* Result descriptor */ |
} |
else |
{ |
/* Now the address and length are valid for this BufferField */ |
|
ObjDesc->BufferField.Flags |= AOPOBJ_DATA_VALID; |
} |
|
return_ACPI_STATUS (Status); |
} |
|
|
/******************************************************************************* |
* |
* FUNCTION: AcpiDsEvalBufferFieldOperands |
* |
* PARAMETERS: WalkState - Current walk |
* Op - A valid BufferField Op object |
* |
* RETURN: Status |
* |
* DESCRIPTION: Get BufferField Buffer and Index |
* Called from AcpiDsExecEndOp during BufferField parse tree walk |
* |
******************************************************************************/ |
|
ACPI_STATUS |
AcpiDsEvalBufferFieldOperands ( |
ACPI_WALK_STATE *WalkState, |
ACPI_PARSE_OBJECT *Op) |
{ |
ACPI_STATUS Status; |
ACPI_OPERAND_OBJECT *ObjDesc; |
ACPI_NAMESPACE_NODE *Node; |
ACPI_PARSE_OBJECT *NextOp; |
|
|
ACPI_FUNCTION_TRACE_PTR (DsEvalBufferFieldOperands, Op); |
|
|
/* |
* This is where we evaluate the address and length fields of the |
* CreateXxxField declaration |
*/ |
Node = Op->Common.Node; |
|
/* NextOp points to the op that holds the Buffer */ |
|
NextOp = Op->Common.Value.Arg; |
|
/* Evaluate/create the address and length operands */ |
|
Status = AcpiDsCreateOperands (WalkState, NextOp); |
if (ACPI_FAILURE (Status)) |
{ |
return_ACPI_STATUS (Status); |
} |
|
ObjDesc = AcpiNsGetAttachedObject (Node); |
if (!ObjDesc) |
{ |
return_ACPI_STATUS (AE_NOT_EXIST); |
} |
|
/* Resolve the operands */ |
|
Status = AcpiExResolveOperands (Op->Common.AmlOpcode, |
ACPI_WALK_OPERANDS, WalkState); |
if (ACPI_FAILURE (Status)) |
{ |
ACPI_ERROR ((AE_INFO, "(%s) bad operand(s), status 0x%X", |
AcpiPsGetOpcodeName (Op->Common.AmlOpcode), Status)); |
|
return_ACPI_STATUS (Status); |
} |
|
/* Initialize the Buffer Field */ |
|
if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP) |
{ |
/* NOTE: Slightly different operands for this opcode */ |
|
Status = AcpiDsInitBufferField (Op->Common.AmlOpcode, ObjDesc, |
WalkState->Operands[0], WalkState->Operands[1], |
WalkState->Operands[2], WalkState->Operands[3]); |
} |
else |
{ |
/* All other, CreateXxxField opcodes */ |
|
Status = AcpiDsInitBufferField (Op->Common.AmlOpcode, ObjDesc, |
WalkState->Operands[0], WalkState->Operands[1], |
NULL, WalkState->Operands[2]); |
} |
|
return_ACPI_STATUS (Status); |
} |
|
|
/******************************************************************************* |
* |
* FUNCTION: AcpiDsEvalRegionOperands |
* |
* PARAMETERS: WalkState - Current walk |
* Op - A valid region Op object |
* |
* RETURN: Status |
* |
* DESCRIPTION: Get region address and length |
* Called from AcpiDsExecEndOp during OpRegion parse tree walk |
* |
******************************************************************************/ |
|
ACPI_STATUS |
AcpiDsEvalRegionOperands ( |
ACPI_WALK_STATE *WalkState, |
ACPI_PARSE_OBJECT *Op) |
{ |
ACPI_STATUS Status; |
ACPI_OPERAND_OBJECT *ObjDesc; |
ACPI_OPERAND_OBJECT *OperandDesc; |
ACPI_NAMESPACE_NODE *Node; |
ACPI_PARSE_OBJECT *NextOp; |
|
|
ACPI_FUNCTION_TRACE_PTR (DsEvalRegionOperands, Op); |
|
|
/* |
* This is where we evaluate the address and length fields of the |
* OpRegion declaration |
*/ |
Node = Op->Common.Node; |
|
/* NextOp points to the op that holds the SpaceID */ |
|
NextOp = Op->Common.Value.Arg; |
|
/* NextOp points to address op */ |
|
NextOp = NextOp->Common.Next; |
|
/* Evaluate/create the address and length operands */ |
|
Status = AcpiDsCreateOperands (WalkState, NextOp); |
if (ACPI_FAILURE (Status)) |
{ |
return_ACPI_STATUS (Status); |
} |
|
/* Resolve the length and address operands to numbers */ |
|
Status = AcpiExResolveOperands (Op->Common.AmlOpcode, |
ACPI_WALK_OPERANDS, WalkState); |
if (ACPI_FAILURE (Status)) |
{ |
return_ACPI_STATUS (Status); |
} |
|
ObjDesc = AcpiNsGetAttachedObject (Node); |
if (!ObjDesc) |
{ |
return_ACPI_STATUS (AE_NOT_EXIST); |
} |
|
/* |
* Get the length operand and save it |
* (at Top of stack) |
*/ |
OperandDesc = WalkState->Operands[WalkState->NumOperands - 1]; |
|
ObjDesc->Region.Length = (UINT32) OperandDesc->Integer.Value; |
AcpiUtRemoveReference (OperandDesc); |
|
/* |
* Get the address and save it |
* (at top of stack - 1) |
*/ |
OperandDesc = WalkState->Operands[WalkState->NumOperands - 2]; |
|
ObjDesc->Region.Address = (ACPI_PHYSICAL_ADDRESS) |
OperandDesc->Integer.Value; |
AcpiUtRemoveReference (OperandDesc); |
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n", |
ObjDesc, |
ACPI_FORMAT_NATIVE_UINT (ObjDesc->Region.Address), |
ObjDesc->Region.Length)); |
|
/* Now the address and length are valid for this opregion */ |
|
ObjDesc->Region.Flags |= AOPOBJ_DATA_VALID; |
|
return_ACPI_STATUS (Status); |
} |
|
|
/******************************************************************************* |
* |
* FUNCTION: AcpiDsEvalTableRegionOperands |
* |
* PARAMETERS: WalkState - Current walk |
* Op - A valid region Op object |
* |
* RETURN: Status |
* |
* DESCRIPTION: Get region address and length |
* Called from AcpiDsExecEndOp during DataTableRegion parse tree walk |
* |
******************************************************************************/ |
|
ACPI_STATUS |
AcpiDsEvalTableRegionOperands ( |
ACPI_WALK_STATE *WalkState, |
ACPI_PARSE_OBJECT *Op) |
{ |
ACPI_STATUS Status; |
ACPI_OPERAND_OBJECT *ObjDesc; |
ACPI_OPERAND_OBJECT **Operand; |
ACPI_NAMESPACE_NODE *Node; |
ACPI_PARSE_OBJECT *NextOp; |
UINT32 TableIndex; |
ACPI_TABLE_HEADER *Table; |
|
|
ACPI_FUNCTION_TRACE_PTR (DsEvalTableRegionOperands, Op); |
|
|
/* |
* This is where we evaluate the SignatureString and OemIDString |
* and OemTableIDString of the DataTableRegion declaration |
*/ |
Node = Op->Common.Node; |
|
/* NextOp points to SignatureString op */ |
|
NextOp = Op->Common.Value.Arg; |
|
/* |
* Evaluate/create the SignatureString and OemIDString |
* and OemTableIDString operands |
*/ |
Status = AcpiDsCreateOperands (WalkState, NextOp); |
if (ACPI_FAILURE (Status)) |
{ |
return_ACPI_STATUS (Status); |
} |
|
/* |
* Resolve the SignatureString and OemIDString |
* and OemTableIDString operands |
*/ |
Status = AcpiExResolveOperands (Op->Common.AmlOpcode, |
ACPI_WALK_OPERANDS, WalkState); |
if (ACPI_FAILURE (Status)) |
{ |
return_ACPI_STATUS (Status); |
} |
|
Operand = &WalkState->Operands[0]; |
|
/* Find the ACPI table */ |
|
Status = AcpiTbFindTable (Operand[0]->String.Pointer, |
Operand[1]->String.Pointer, Operand[2]->String.Pointer, |
&TableIndex); |
if (ACPI_FAILURE (Status)) |
{ |
return_ACPI_STATUS (Status); |
} |
|
AcpiUtRemoveReference (Operand[0]); |
AcpiUtRemoveReference (Operand[1]); |
AcpiUtRemoveReference (Operand[2]); |
|
Status = AcpiGetTableByIndex (TableIndex, &Table); |
if (ACPI_FAILURE (Status)) |
{ |
return_ACPI_STATUS (Status); |
} |
|
ObjDesc = AcpiNsGetAttachedObject (Node); |
if (!ObjDesc) |
{ |
return_ACPI_STATUS (AE_NOT_EXIST); |
} |
|
ObjDesc->Region.Address = (ACPI_PHYSICAL_ADDRESS) ACPI_TO_INTEGER (Table); |
ObjDesc->Region.Length = Table->Length; |
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n", |
ObjDesc, |
ACPI_FORMAT_NATIVE_UINT (ObjDesc->Region.Address), |
ObjDesc->Region.Length)); |
|
/* Now the address and length are valid for this opregion */ |
|
ObjDesc->Region.Flags |= AOPOBJ_DATA_VALID; |
|
return_ACPI_STATUS (Status); |
} |
|
|
/******************************************************************************* |
* |
* FUNCTION: AcpiDsEvalDataObjectOperands |
* |
* PARAMETERS: WalkState - Current walk |
* Op - A valid DataObject Op object |
* ObjDesc - DataObject |
* |
* RETURN: Status |
* |
* DESCRIPTION: Get the operands and complete the following data object types: |
* Buffer, Package. |
* |
******************************************************************************/ |
|
ACPI_STATUS |
AcpiDsEvalDataObjectOperands ( |
ACPI_WALK_STATE *WalkState, |
ACPI_PARSE_OBJECT *Op, |
ACPI_OPERAND_OBJECT *ObjDesc) |
{ |
ACPI_STATUS Status; |
ACPI_OPERAND_OBJECT *ArgDesc; |
UINT32 Length; |
|
|
ACPI_FUNCTION_TRACE (DsEvalDataObjectOperands); |
|
|
/* The first operand (for all of these data objects) is the length */ |
|
/* |
* Set proper index into operand stack for AcpiDsObjStackPush |
* invoked inside AcpiDsCreateOperand. |
*/ |
WalkState->OperandIndex = WalkState->NumOperands; |
|
Status = AcpiDsCreateOperand (WalkState, Op->Common.Value.Arg, 1); |
if (ACPI_FAILURE (Status)) |
{ |
return_ACPI_STATUS (Status); |
} |
|
Status = AcpiExResolveOperands (WalkState->Opcode, |
&(WalkState->Operands [WalkState->NumOperands -1]), |
WalkState); |
if (ACPI_FAILURE (Status)) |
{ |
return_ACPI_STATUS (Status); |
} |
|
/* Extract length operand */ |
|
ArgDesc = WalkState->Operands [WalkState->NumOperands - 1]; |
Length = (UINT32) ArgDesc->Integer.Value; |
|
/* Cleanup for length operand */ |
|
Status = AcpiDsObjStackPop (1, WalkState); |
if (ACPI_FAILURE (Status)) |
{ |
return_ACPI_STATUS (Status); |
} |
|
AcpiUtRemoveReference (ArgDesc); |
|
/* |
* Create the actual data object |
*/ |
switch (Op->Common.AmlOpcode) |
{ |
case AML_BUFFER_OP: |
|
Status = AcpiDsBuildInternalBufferObj (WalkState, Op, Length, &ObjDesc); |
break; |
|
case AML_PACKAGE_OP: |
case AML_VAR_PACKAGE_OP: |
|
Status = AcpiDsBuildInternalPackageObj (WalkState, Op, Length, &ObjDesc); |
break; |
|
default: |
return_ACPI_STATUS (AE_AML_BAD_OPCODE); |
} |
|
if (ACPI_SUCCESS (Status)) |
{ |
/* |
* Return the object in the WalkState, unless the parent is a package - |
* in this case, the return object will be stored in the parse tree |
* for the package. |
*/ |
if ((!Op->Common.Parent) || |
((Op->Common.Parent->Common.AmlOpcode != AML_PACKAGE_OP) && |
(Op->Common.Parent->Common.AmlOpcode != AML_VAR_PACKAGE_OP) && |
(Op->Common.Parent->Common.AmlOpcode != AML_NAME_OP))) |
{ |
WalkState->ResultObj = ObjDesc; |
} |
} |
|
return_ACPI_STATUS (Status); |
} |
|
|
/******************************************************************************* |
* |
* FUNCTION: AcpiDsEvalBankFieldOperands |
* |
* PARAMETERS: WalkState - Current walk |
* Op - A valid BankField Op object |
* |
* RETURN: Status |
* |
* DESCRIPTION: Get BankField BankValue |
* Called from AcpiDsExecEndOp during BankField parse tree walk |
* |
******************************************************************************/ |
|
ACPI_STATUS |
AcpiDsEvalBankFieldOperands ( |
ACPI_WALK_STATE *WalkState, |
ACPI_PARSE_OBJECT *Op) |
{ |
ACPI_STATUS Status; |
ACPI_OPERAND_OBJECT *ObjDesc; |
ACPI_OPERAND_OBJECT *OperandDesc; |
ACPI_NAMESPACE_NODE *Node; |
ACPI_PARSE_OBJECT *NextOp; |
ACPI_PARSE_OBJECT *Arg; |
|
|
ACPI_FUNCTION_TRACE_PTR (DsEvalBankFieldOperands, Op); |
|
|
/* |
* This is where we evaluate the BankValue field of the |
* BankField declaration |
*/ |
|
/* NextOp points to the op that holds the Region */ |
|
NextOp = Op->Common.Value.Arg; |
|
/* NextOp points to the op that holds the Bank Register */ |
|
NextOp = NextOp->Common.Next; |
|
/* NextOp points to the op that holds the Bank Value */ |
|
NextOp = NextOp->Common.Next; |
|
/* |
* Set proper index into operand stack for AcpiDsObjStackPush |
* invoked inside AcpiDsCreateOperand. |
* |
* We use WalkState->Operands[0] to store the evaluated BankValue |
*/ |
WalkState->OperandIndex = 0; |
|
Status = AcpiDsCreateOperand (WalkState, NextOp, 0); |
if (ACPI_FAILURE (Status)) |
{ |
return_ACPI_STATUS (Status); |
} |
|
Status = AcpiExResolveToValue (&WalkState->Operands[0], WalkState); |
if (ACPI_FAILURE (Status)) |
{ |
return_ACPI_STATUS (Status); |
} |
|
ACPI_DUMP_OPERANDS (ACPI_WALK_OPERANDS, |
AcpiPsGetOpcodeName (Op->Common.AmlOpcode), 1); |
/* |
* Get the BankValue operand and save it |
* (at Top of stack) |
*/ |
OperandDesc = WalkState->Operands[0]; |
|
/* Arg points to the start Bank Field */ |
|
Arg = AcpiPsGetArg (Op, 4); |
while (Arg) |
{ |
/* Ignore OFFSET and ACCESSAS terms here */ |
|
if (Arg->Common.AmlOpcode == AML_INT_NAMEDFIELD_OP) |
{ |
Node = Arg->Common.Node; |
|
ObjDesc = AcpiNsGetAttachedObject (Node); |
if (!ObjDesc) |
{ |
return_ACPI_STATUS (AE_NOT_EXIST); |
} |
|
ObjDesc->BankField.Value = (UINT32) OperandDesc->Integer.Value; |
} |
|
/* Move to next field in the list */ |
|
Arg = Arg->Common.Next; |
} |
|
AcpiUtRemoveReference (OperandDesc); |
return_ACPI_STATUS (Status); |
} |
|
|
/******************************************************************************* |
* |
* FUNCTION: AcpiDsExecBeginControlOp |
* |
* PARAMETERS: WalkList - The list that owns the walk stack |
* Op - The control Op |
* |
* RETURN: Status |
* |
* DESCRIPTION: Handles all control ops encountered during control method |
* execution. |
* |
******************************************************************************/ |
|
ACPI_STATUS |
AcpiDsExecBeginControlOp ( |
ACPI_WALK_STATE *WalkState, |
ACPI_PARSE_OBJECT *Op) |
{ |
ACPI_STATUS Status = AE_OK; |
ACPI_GENERIC_STATE *ControlState; |
|
|
ACPI_FUNCTION_NAME (DsExecBeginControlOp); |
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p Opcode=%2.2X State=%p\n", Op, |
Op->Common.AmlOpcode, WalkState)); |
|
switch (Op->Common.AmlOpcode) |
{ |
case AML_WHILE_OP: |
|
/* |
* If this is an additional iteration of a while loop, continue. |
* There is no need to allocate a new control state. |
*/ |
if (WalkState->ControlState) |
{ |
if (WalkState->ControlState->Control.AmlPredicateStart == |
(WalkState->ParserState.Aml - 1)) |
{ |
/* Reset the state to start-of-loop */ |
|
WalkState->ControlState->Common.State = ACPI_CONTROL_CONDITIONAL_EXECUTING; |
break; |
} |
} |
|
/*lint -fallthrough */ |
|
case AML_IF_OP: |
|
/* |
* IF/WHILE: Create a new control state to manage these |
* constructs. We need to manage these as a stack, in order |
* to handle nesting. |
*/ |
ControlState = AcpiUtCreateControlState (); |
if (!ControlState) |
{ |
Status = AE_NO_MEMORY; |
break; |
} |
/* |
* Save a pointer to the predicate for multiple executions |
* of a loop |
*/ |
ControlState->Control.AmlPredicateStart = WalkState->ParserState.Aml - 1; |
ControlState->Control.PackageEnd = WalkState->ParserState.PkgEnd; |
ControlState->Control.Opcode = Op->Common.AmlOpcode; |
|
|
/* Push the control state on this walk's control stack */ |
|
AcpiUtPushGenericState (&WalkState->ControlState, ControlState); |
break; |
|
case AML_ELSE_OP: |
|
/* Predicate is in the state object */ |
/* If predicate is true, the IF was executed, ignore ELSE part */ |
|
if (WalkState->LastPredicate) |
{ |
Status = AE_CTRL_TRUE; |
} |
|
break; |
|
case AML_RETURN_OP: |
|
break; |
|
default: |
break; |
} |
|
return (Status); |
} |
|
|
/******************************************************************************* |
* |
* FUNCTION: AcpiDsExecEndControlOp |
* |
* PARAMETERS: WalkList - The list that owns the walk stack |
* Op - The control Op |
* |
* RETURN: Status |
* |
* DESCRIPTION: Handles all control ops encountered during control method |
* execution. |
* |
******************************************************************************/ |
|
ACPI_STATUS |
AcpiDsExecEndControlOp ( |
ACPI_WALK_STATE *WalkState, |
ACPI_PARSE_OBJECT *Op) |
{ |
ACPI_STATUS Status = AE_OK; |
ACPI_GENERIC_STATE *ControlState; |
|
|
ACPI_FUNCTION_NAME (DsExecEndControlOp); |
|
|
switch (Op->Common.AmlOpcode) |
{ |
case AML_IF_OP: |
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[IF_OP] Op=%p\n", Op)); |
|
/* |
* Save the result of the predicate in case there is an |
* ELSE to come |
*/ |
WalkState->LastPredicate = |
(BOOLEAN) WalkState->ControlState->Common.Value; |
|
/* |
* Pop the control state that was created at the start |
* of the IF and free it |
*/ |
ControlState = AcpiUtPopGenericState (&WalkState->ControlState); |
AcpiUtDeleteGenericState (ControlState); |
break; |
|
|
case AML_ELSE_OP: |
|
break; |
|
|
case AML_WHILE_OP: |
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[WHILE_OP] Op=%p\n", Op)); |
|
ControlState = WalkState->ControlState; |
if (ControlState->Common.Value) |
{ |
/* Predicate was true, the body of the loop was just executed */ |
|
/* |
* This loop counter mechanism allows the interpreter to escape |
* possibly infinite loops. This can occur in poorly written AML |
* when the hardware does not respond within a while loop and the |
* loop does not implement a timeout. |
*/ |
ControlState->Control.LoopCount++; |
if (ControlState->Control.LoopCount > ACPI_MAX_LOOP_ITERATIONS) |
{ |
Status = AE_AML_INFINITE_LOOP; |
break; |
} |
|
/* |
* Go back and evaluate the predicate and maybe execute the loop |
* another time |
*/ |
Status = AE_CTRL_PENDING; |
WalkState->AmlLastWhile = ControlState->Control.AmlPredicateStart; |
break; |
} |
|
/* Predicate was false, terminate this while loop */ |
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, |
"[WHILE_OP] termination! Op=%p\n",Op)); |
|
/* Pop this control state and free it */ |
|
ControlState = AcpiUtPopGenericState (&WalkState->ControlState); |
AcpiUtDeleteGenericState (ControlState); |
break; |
|
|
case AML_RETURN_OP: |
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, |
"[RETURN_OP] Op=%p Arg=%p\n",Op, Op->Common.Value.Arg)); |
|
/* |
* One optional operand -- the return value |
* It can be either an immediate operand or a result that |
* has been bubbled up the tree |
*/ |
if (Op->Common.Value.Arg) |
{ |
/* Since we have a real Return(), delete any implicit return */ |
|
AcpiDsClearImplicitReturn (WalkState); |
|
/* Return statement has an immediate operand */ |
|
Status = AcpiDsCreateOperands (WalkState, Op->Common.Value.Arg); |
if (ACPI_FAILURE (Status)) |
{ |
return (Status); |
} |
|
/* |
* If value being returned is a Reference (such as |
* an arg or local), resolve it now because it may |
* cease to exist at the end of the method. |
*/ |
Status = AcpiExResolveToValue (&WalkState->Operands [0], WalkState); |
if (ACPI_FAILURE (Status)) |
{ |
return (Status); |
} |
|
/* |
* Get the return value and save as the last result |
* value. This is the only place where WalkState->ReturnDesc |
* is set to anything other than zero! |
*/ |
WalkState->ReturnDesc = WalkState->Operands[0]; |
} |
else if (WalkState->ResultCount) |
{ |
/* Since we have a real Return(), delete any implicit return */ |
|
AcpiDsClearImplicitReturn (WalkState); |
|
/* |
* The return value has come from a previous calculation. |
* |
* If value being returned is a Reference (such as |
* an arg or local), resolve it now because it may |
* cease to exist at the end of the method. |
* |
* Allow references created by the Index operator to return unchanged. |
*/ |
if ((ACPI_GET_DESCRIPTOR_TYPE (WalkState->Results->Results.ObjDesc[0]) == ACPI_DESC_TYPE_OPERAND) && |
((WalkState->Results->Results.ObjDesc [0])->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) && |
((WalkState->Results->Results.ObjDesc [0])->Reference.Class != ACPI_REFCLASS_INDEX)) |
{ |
Status = AcpiExResolveToValue (&WalkState->Results->Results.ObjDesc [0], WalkState); |
if (ACPI_FAILURE (Status)) |
{ |
return (Status); |
} |
} |
|
WalkState->ReturnDesc = WalkState->Results->Results.ObjDesc [0]; |
} |
else |
{ |
/* No return operand */ |
|
if (WalkState->NumOperands) |
{ |
AcpiUtRemoveReference (WalkState->Operands [0]); |
} |
|
WalkState->Operands [0] = NULL; |
WalkState->NumOperands = 0; |
WalkState->ReturnDesc = NULL; |
} |
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, |
"Completed RETURN_OP State=%p, RetVal=%p\n", |
WalkState, WalkState->ReturnDesc)); |
|
/* End the control method execution right now */ |
|
Status = AE_CTRL_TERMINATE; |
break; |
|
|
case AML_NOOP_OP: |
|
/* Just do nothing! */ |
break; |
|
|
case AML_BREAK_POINT_OP: |
|
/* |
* Set the single-step flag. This will cause the debugger (if present) |
* to break to the console within the AML debugger at the start of the |
* next AML instruction. |
*/ |
ACPI_DEBUGGER_EXEC ( |
AcpiGbl_CmSingleStep = TRUE); |
ACPI_DEBUGGER_EXEC ( |
AcpiOsPrintf ("**break** Executed AML BreakPoint opcode\n")); |
|
/* Call to the OSL in case OS wants a piece of the action */ |
|
Status = AcpiOsSignal (ACPI_SIGNAL_BREAKPOINT, |
"Executed AML Breakpoint opcode"); |
break; |
|
|
case AML_BREAK_OP: |
case AML_CONTINUE_OP: /* ACPI 2.0 */ |
|
|
/* Pop and delete control states until we find a while */ |
|
while (WalkState->ControlState && |
(WalkState->ControlState->Control.Opcode != AML_WHILE_OP)) |
{ |
ControlState = AcpiUtPopGenericState (&WalkState->ControlState); |
AcpiUtDeleteGenericState (ControlState); |
} |
|
/* No while found? */ |
|
if (!WalkState->ControlState) |
{ |
return (AE_AML_NO_WHILE); |
} |
|
/* Was: WalkState->AmlLastWhile = WalkState->ControlState->Control.AmlPredicateStart; */ |
|
WalkState->AmlLastWhile = WalkState->ControlState->Control.PackageEnd; |
|
/* Return status depending on opcode */ |
|
if (Op->Common.AmlOpcode == AML_BREAK_OP) |
{ |
Status = AE_CTRL_BREAK; |
} |
else |
{ |
Status = AE_CTRL_CONTINUE; |
} |
break; |
|
|
default: |
|
ACPI_ERROR ((AE_INFO, "Unknown control opcode=0x%X Op=%p", |
Op->Common.AmlOpcode, Op)); |
|
Status = AE_AML_BAD_OPCODE; |
break; |
} |
|
return (Status); |
} |
|