/******************************************************************************
*
* Module Name: dsargs - Support for execution of dynamic arguments for static
* objects (regions, fields, buffer fields, etc.)
*
*****************************************************************************/
/*
* Copyright (C) 2000 - 2018, Intel Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*/
#include "acpi.h"
#include "accommon.h"
#include "acparser.h"
#include "amlcode.h"
#include "acdispat.h"
#include "acnamesp.h"
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME ("dsargs")
/* Local prototypes */
static ACPI_STATUS
AcpiDsExecuteArguments (
ACPI_NAMESPACE_NODE *Node,
ACPI_NAMESPACE_NODE *ScopeNode,
UINT32 AmlLength,
UINT8 *AmlStart);
/*******************************************************************************
*
* 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_PTR (DsExecuteArguments, AmlStart);
/* Allocate a new parser op to be the root of the parsed tree */
Op = AcpiPsAllocOp (AML_INT_EVAL_SUBTREE_OP, AmlStart);
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, AmlStart);
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 Argument Init, AML Ptr: %p\n",
ObjDesc->Package.AmlStart));
/* 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, ExtraDesc->Extra.ScopeNode,
ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
Status = AcpiUtAddAddressRange (ObjDesc->Region.SpaceId,
ObjDesc->Region.Address, ObjDesc->Region.Length, Node);
return_ACPI_STATUS (Status);
}