forked from KolibriOS/kolibrios
842 lines
27 KiB
C
842 lines
27 KiB
C
|
|
/******************************************************************************
|
|
*
|
|
* Module Name: asltransform - Parse tree transforms
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/******************************************************************************
|
|
*
|
|
* 1. Copyright Notice
|
|
*
|
|
* Some or all of this work - Copyright (c) 1999 - 2011, 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 "aslcompiler.h"
|
|
#include "aslcompiler.y.h"
|
|
|
|
#define _COMPONENT ACPI_COMPILER
|
|
ACPI_MODULE_NAME ("asltransform")
|
|
|
|
/* Local prototypes */
|
|
|
|
static void
|
|
TrTransformSubtree (
|
|
ACPI_PARSE_OBJECT *Op);
|
|
|
|
static char *
|
|
TrAmlGetNextTempName (
|
|
ACPI_PARSE_OBJECT *Op,
|
|
UINT8 *TempCount);
|
|
|
|
static void
|
|
TrAmlInitLineNumbers (
|
|
ACPI_PARSE_OBJECT *Op,
|
|
ACPI_PARSE_OBJECT *Neighbor);
|
|
|
|
static void
|
|
TrAmlInitNode (
|
|
ACPI_PARSE_OBJECT *Op,
|
|
UINT16 ParseOpcode);
|
|
|
|
static void
|
|
TrAmlSetSubtreeParent (
|
|
ACPI_PARSE_OBJECT *Op,
|
|
ACPI_PARSE_OBJECT *Parent);
|
|
|
|
static void
|
|
TrAmlInsertPeer (
|
|
ACPI_PARSE_OBJECT *Op,
|
|
ACPI_PARSE_OBJECT *NewPeer);
|
|
|
|
static void
|
|
TrDoDefinitionBlock (
|
|
ACPI_PARSE_OBJECT *Op);
|
|
|
|
static void
|
|
TrDoSwitch (
|
|
ACPI_PARSE_OBJECT *StartNode);
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: TrAmlGetNextTempName
|
|
*
|
|
* PARAMETERS: Op - Current parse op
|
|
* TempCount - Current temporary counter. Was originally
|
|
* per-module; Currently per method, could be
|
|
* expanded to per-scope.
|
|
*
|
|
* RETURN: A pointer to name (allocated here).
|
|
*
|
|
* DESCRIPTION: Generate an ACPI name of the form _T_x. These names are
|
|
* reserved for use by the ASL compiler. (_T_0 through _T_Z)
|
|
*
|
|
******************************************************************************/
|
|
|
|
static char *
|
|
TrAmlGetNextTempName (
|
|
ACPI_PARSE_OBJECT *Op,
|
|
UINT8 *TempCount)
|
|
{
|
|
char *TempName;
|
|
|
|
|
|
if (*TempCount >= (10+26)) /* 0-35 valid: 0-9 and A-Z for TempName[3] */
|
|
{
|
|
/* Too many temps */
|
|
|
|
AslError (ASL_ERROR, ASL_MSG_TOO_MANY_TEMPS, Op, NULL);
|
|
return (NULL);
|
|
}
|
|
|
|
TempName = UtLocalCalloc (5);
|
|
|
|
if (*TempCount < 10) /* 0-9 */
|
|
{
|
|
TempName[3] = (char) (*TempCount + '0');
|
|
}
|
|
else /* 10-35: A-Z */
|
|
{
|
|
TempName[3] = (char) (*TempCount + ('A' - 10));
|
|
}
|
|
(*TempCount)++;
|
|
|
|
/* First three characters are always "_T_" */
|
|
|
|
TempName[0] = '_';
|
|
TempName[1] = 'T';
|
|
TempName[2] = '_';
|
|
|
|
return (TempName);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: TrAmlInitLineNumbers
|
|
*
|
|
* PARAMETERS: Op - Op to be initialized
|
|
* Neighbor - Op used for initialization values
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Initialized the various line numbers for a parse node.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static void
|
|
TrAmlInitLineNumbers (
|
|
ACPI_PARSE_OBJECT *Op,
|
|
ACPI_PARSE_OBJECT *Neighbor)
|
|
{
|
|
|
|
Op->Asl.EndLine = Neighbor->Asl.EndLine;
|
|
Op->Asl.EndLogicalLine = Neighbor->Asl.EndLogicalLine;
|
|
Op->Asl.LineNumber = Neighbor->Asl.LineNumber;
|
|
Op->Asl.LogicalByteOffset = Neighbor->Asl.LogicalByteOffset;
|
|
Op->Asl.LogicalLineNumber = Neighbor->Asl.LogicalLineNumber;
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: TrAmlInitNode
|
|
*
|
|
* PARAMETERS: Op - Op to be initialized
|
|
* ParseOpcode - Opcode for this node
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Initialize a node with the parse opcode and opcode name.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static void
|
|
TrAmlInitNode (
|
|
ACPI_PARSE_OBJECT *Op,
|
|
UINT16 ParseOpcode)
|
|
{
|
|
|
|
Op->Asl.ParseOpcode = ParseOpcode;
|
|
UtSetParseOpName (Op);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: TrAmlSetSubtreeParent
|
|
*
|
|
* PARAMETERS: Op - First node in a list of peer nodes
|
|
* Parent - Parent of the subtree
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Set the parent for all peer nodes in a subtree
|
|
*
|
|
******************************************************************************/
|
|
|
|
static void
|
|
TrAmlSetSubtreeParent (
|
|
ACPI_PARSE_OBJECT *Op,
|
|
ACPI_PARSE_OBJECT *Parent)
|
|
{
|
|
ACPI_PARSE_OBJECT *Next;
|
|
|
|
|
|
Next = Op;
|
|
while (Next)
|
|
{
|
|
Next->Asl.Parent = Parent;
|
|
Next = Next->Asl.Next;
|
|
}
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: TrAmlInsertPeer
|
|
*
|
|
* PARAMETERS: Op - First node in a list of peer nodes
|
|
* NewPeer - Peer node to insert
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Insert a new peer node into a list of peers.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static void
|
|
TrAmlInsertPeer (
|
|
ACPI_PARSE_OBJECT *Op,
|
|
ACPI_PARSE_OBJECT *NewPeer)
|
|
{
|
|
|
|
NewPeer->Asl.Next = Op->Asl.Next;
|
|
Op->Asl.Next = NewPeer;
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: TrAmlTransformWalk
|
|
*
|
|
* PARAMETERS: ASL_WALK_CALLBACK
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Parse tree walk to generate both the AML opcodes and the AML
|
|
* operands.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
TrAmlTransformWalk (
|
|
ACPI_PARSE_OBJECT *Op,
|
|
UINT32 Level,
|
|
void *Context)
|
|
{
|
|
|
|
TrTransformSubtree (Op);
|
|
return (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: TrTransformSubtree
|
|
*
|
|
* PARAMETERS: Op - The parent parse node
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Prepare nodes to be output as AML data and operands. The more
|
|
* complex AML opcodes require processing of the child nodes
|
|
* (arguments/operands).
|
|
*
|
|
******************************************************************************/
|
|
|
|
static void
|
|
TrTransformSubtree (
|
|
ACPI_PARSE_OBJECT *Op)
|
|
{
|
|
|
|
if (Op->Asl.AmlOpcode == AML_RAW_DATA_BYTE)
|
|
{
|
|
return;
|
|
}
|
|
|
|
switch (Op->Asl.ParseOpcode)
|
|
{
|
|
case PARSEOP_DEFINITIONBLOCK:
|
|
TrDoDefinitionBlock (Op);
|
|
break;
|
|
|
|
case PARSEOP_SWITCH:
|
|
TrDoSwitch (Op);
|
|
break;
|
|
|
|
case PARSEOP_METHOD:
|
|
|
|
/*
|
|
* TBD: Zero the tempname (_T_x) count. Probably shouldn't be a global,
|
|
* however
|
|
*/
|
|
Gbl_TempCount = 0;
|
|
break;
|
|
|
|
default:
|
|
/* Nothing to do here for other opcodes */
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: TrDoDefinitionBlock
|
|
*
|
|
* PARAMETERS: Op - Parse node
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Find the end of the definition block and set a global to this
|
|
* node. It is used by the compiler to insert compiler-generated
|
|
* names at the root level of the namespace.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static void
|
|
TrDoDefinitionBlock (
|
|
ACPI_PARSE_OBJECT *Op)
|
|
{
|
|
ACPI_PARSE_OBJECT *Next;
|
|
UINT32 i;
|
|
|
|
|
|
Next = Op->Asl.Child;
|
|
for (i = 0; i < 5; i++)
|
|
{
|
|
Next = Next->Asl.Next;
|
|
if (i == 0)
|
|
{
|
|
/*
|
|
* This is the table signature. Only the DSDT can be assumed
|
|
* to be at the root of the namespace; Therefore, namepath
|
|
* optimization can only be performed on the DSDT.
|
|
*/
|
|
if (!ACPI_COMPARE_NAME (Next->Asl.Value.String, ACPI_SIG_DSDT))
|
|
{
|
|
Gbl_ReferenceOptimizationFlag = FALSE;
|
|
}
|
|
}
|
|
}
|
|
|
|
Gbl_FirstLevelInsertionNode = Next;
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: TrDoSwitch
|
|
*
|
|
* PARAMETERS: StartNode - Parse node for SWITCH
|
|
*
|
|
* RETURN: None
|
|
*
|
|
*
|
|
* DESCRIPTION: Translate ASL SWITCH statement to if/else pairs. There is
|
|
* no actual AML opcode for SWITCH -- it must be simulated.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static void
|
|
TrDoSwitch (
|
|
ACPI_PARSE_OBJECT *StartNode)
|
|
{
|
|
ACPI_PARSE_OBJECT *Next;
|
|
ACPI_PARSE_OBJECT *CaseOp = NULL;
|
|
ACPI_PARSE_OBJECT *CaseBlock = NULL;
|
|
ACPI_PARSE_OBJECT *DefaultOp = NULL;
|
|
ACPI_PARSE_OBJECT *CurrentParentNode;
|
|
ACPI_PARSE_OBJECT *Conditional = NULL;
|
|
ACPI_PARSE_OBJECT *Predicate;
|
|
ACPI_PARSE_OBJECT *Peer;
|
|
ACPI_PARSE_OBJECT *NewOp;
|
|
ACPI_PARSE_OBJECT *NewOp2;
|
|
ACPI_PARSE_OBJECT *MethodOp;
|
|
ACPI_PARSE_OBJECT *StoreOp;
|
|
ACPI_PARSE_OBJECT *BreakOp;
|
|
char *PredicateValueName;
|
|
UINT16 Index;
|
|
UINT32 Btype;
|
|
|
|
|
|
/* Start node is the Switch() node */
|
|
|
|
CurrentParentNode = StartNode;
|
|
|
|
/* Create a new temp name of the form _T_x */
|
|
|
|
PredicateValueName = TrAmlGetNextTempName (StartNode, &Gbl_TempCount);
|
|
if (!PredicateValueName)
|
|
{
|
|
return;
|
|
}
|
|
|
|
/* First child is the Switch() predicate */
|
|
|
|
Next = StartNode->Asl.Child;
|
|
|
|
/*
|
|
* Examine the return type of the Switch Value -
|
|
* must be Integer/Buffer/String
|
|
*/
|
|
Index = (UINT16) (Next->Asl.ParseOpcode - ASL_PARSE_OPCODE_BASE);
|
|
Btype = AslKeywordMapping[Index].AcpiBtype;
|
|
if ((Btype != ACPI_BTYPE_INTEGER) &&
|
|
(Btype != ACPI_BTYPE_STRING) &&
|
|
(Btype != ACPI_BTYPE_BUFFER))
|
|
{
|
|
AslError (ASL_WARNING, ASL_MSG_SWITCH_TYPE, Next, NULL);
|
|
Btype = ACPI_BTYPE_INTEGER;
|
|
}
|
|
|
|
/* CASE statements start at next child */
|
|
|
|
Peer = Next->Asl.Next;
|
|
while (Peer)
|
|
{
|
|
Next = Peer;
|
|
Peer = Next->Asl.Next;
|
|
|
|
if (Next->Asl.ParseOpcode == PARSEOP_CASE)
|
|
{
|
|
if (CaseOp)
|
|
{
|
|
/* Add an ELSE to complete the previous CASE */
|
|
|
|
if (!Conditional)
|
|
{
|
|
return;
|
|
}
|
|
NewOp = TrCreateLeafNode (PARSEOP_ELSE);
|
|
NewOp->Asl.Parent = Conditional->Asl.Parent;
|
|
TrAmlInitLineNumbers (NewOp, NewOp->Asl.Parent);
|
|
|
|
/* Link ELSE node as a peer to the previous IF */
|
|
|
|
TrAmlInsertPeer (Conditional, NewOp);
|
|
CurrentParentNode = NewOp;
|
|
}
|
|
|
|
CaseOp = Next;
|
|
Conditional = CaseOp;
|
|
CaseBlock = CaseOp->Asl.Child->Asl.Next;
|
|
Conditional->Asl.Child->Asl.Next = NULL;
|
|
Predicate = CaseOp->Asl.Child;
|
|
|
|
if ((Predicate->Asl.ParseOpcode == PARSEOP_PACKAGE) ||
|
|
(Predicate->Asl.ParseOpcode == PARSEOP_VAR_PACKAGE))
|
|
{
|
|
/*
|
|
* Convert the package declaration to this form:
|
|
*
|
|
* If (LNotEqual (Match (Package(<size>){<data>},
|
|
* MEQ, _T_x, MTR, Zero, Zero), Ones))
|
|
*/
|
|
NewOp2 = TrCreateLeafNode (PARSEOP_MATCHTYPE_MEQ);
|
|
Predicate->Asl.Next = NewOp2;
|
|
TrAmlInitLineNumbers (NewOp2, Conditional);
|
|
|
|
NewOp = NewOp2;
|
|
NewOp2 = TrCreateValuedLeafNode (PARSEOP_NAMESTRING,
|
|
(UINT64) ACPI_TO_INTEGER (PredicateValueName));
|
|
NewOp->Asl.Next = NewOp2;
|
|
TrAmlInitLineNumbers (NewOp2, Predicate);
|
|
|
|
NewOp = NewOp2;
|
|
NewOp2 = TrCreateLeafNode (PARSEOP_MATCHTYPE_MTR);
|
|
NewOp->Asl.Next = NewOp2;
|
|
TrAmlInitLineNumbers (NewOp2, Predicate);
|
|
|
|
NewOp = NewOp2;
|
|
NewOp2 = TrCreateLeafNode (PARSEOP_ZERO);
|
|
NewOp->Asl.Next = NewOp2;
|
|
TrAmlInitLineNumbers (NewOp2, Predicate);
|
|
|
|
NewOp = NewOp2;
|
|
NewOp2 = TrCreateLeafNode (PARSEOP_ZERO);
|
|
NewOp->Asl.Next = NewOp2;
|
|
TrAmlInitLineNumbers (NewOp2, Predicate);
|
|
|
|
NewOp2 = TrCreateLeafNode (PARSEOP_MATCH);
|
|
NewOp2->Asl.Child = Predicate; /* PARSEOP_PACKAGE */
|
|
TrAmlInitLineNumbers (NewOp2, Conditional);
|
|
TrAmlSetSubtreeParent (Predicate, NewOp2);
|
|
|
|
NewOp = NewOp2;
|
|
NewOp2 = TrCreateLeafNode (PARSEOP_ONES);
|
|
NewOp->Asl.Next = NewOp2;
|
|
TrAmlInitLineNumbers (NewOp2, Conditional);
|
|
|
|
NewOp2 = TrCreateLeafNode (PARSEOP_LEQUAL);
|
|
NewOp2->Asl.Child = NewOp;
|
|
NewOp->Asl.Parent = NewOp2;
|
|
TrAmlInitLineNumbers (NewOp2, Conditional);
|
|
TrAmlSetSubtreeParent (NewOp, NewOp2);
|
|
|
|
NewOp = NewOp2;
|
|
NewOp2 = TrCreateLeafNode (PARSEOP_LNOT);
|
|
NewOp2->Asl.Child = NewOp;
|
|
NewOp2->Asl.Parent = Conditional;
|
|
NewOp->Asl.Parent = NewOp2;
|
|
TrAmlInitLineNumbers (NewOp2, Conditional);
|
|
|
|
Conditional->Asl.Child = NewOp2;
|
|
NewOp2->Asl.Next = CaseBlock;
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Integer and Buffer case.
|
|
*
|
|
* Change CaseOp() to: If (LEqual (SwitchValue, CaseValue)) {...}
|
|
* Note: SwitchValue is first to allow the CaseValue to be implicitly
|
|
* converted to the type of SwitchValue if necessary.
|
|
*
|
|
* CaseOp->Child is the case value
|
|
* CaseOp->Child->Peer is the beginning of the case block
|
|
*/
|
|
NewOp = TrCreateValuedLeafNode (PARSEOP_NAMESTRING,
|
|
(UINT64) ACPI_TO_INTEGER (PredicateValueName));
|
|
NewOp->Asl.Next = Predicate;
|
|
TrAmlInitLineNumbers (NewOp, Predicate);
|
|
|
|
NewOp2 = TrCreateLeafNode (PARSEOP_LEQUAL);
|
|
NewOp2->Asl.Parent = Conditional;
|
|
NewOp2->Asl.Child = NewOp;
|
|
TrAmlInitLineNumbers (NewOp2, Conditional);
|
|
|
|
TrAmlSetSubtreeParent (NewOp, NewOp2);
|
|
|
|
Predicate = NewOp2;
|
|
Predicate->Asl.Next = CaseBlock;
|
|
|
|
TrAmlSetSubtreeParent (Predicate, Conditional);
|
|
Conditional->Asl.Child = Predicate;
|
|
}
|
|
|
|
/* Reinitialize the CASE node to an IF node */
|
|
|
|
TrAmlInitNode (Conditional, PARSEOP_IF);
|
|
|
|
/*
|
|
* The first CASE(IF) is not nested under an ELSE.
|
|
* All other CASEs are children of a parent ELSE.
|
|
*/
|
|
if (CurrentParentNode == StartNode)
|
|
{
|
|
Conditional->Asl.Next = NULL;
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* The IF is a child of previous IF/ELSE. It
|
|
* is therefore without peer.
|
|
*/
|
|
CurrentParentNode->Asl.Child = Conditional;
|
|
Conditional->Asl.Parent = CurrentParentNode;
|
|
Conditional->Asl.Next = NULL;
|
|
}
|
|
}
|
|
else if (Next->Asl.ParseOpcode == PARSEOP_DEFAULT)
|
|
{
|
|
if (DefaultOp)
|
|
{
|
|
/*
|
|
* More than one Default
|
|
* (Parser does not catch this, must check here)
|
|
*/
|
|
AslError (ASL_ERROR, ASL_MSG_MULTIPLE_DEFAULT, Next, NULL);
|
|
}
|
|
else
|
|
{
|
|
/* Save the DEFAULT node for later, after CASEs */
|
|
|
|
DefaultOp = Next;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Unknown peer opcode */
|
|
|
|
AcpiOsPrintf ("Unknown parse opcode for switch statement: %s (%u)\n",
|
|
Next->Asl.ParseOpName, Next->Asl.ParseOpcode);
|
|
}
|
|
}
|
|
|
|
/* Add the default case at the end of the if/else construct */
|
|
|
|
if (DefaultOp)
|
|
{
|
|
/* If no CASE statements, this is an error - see below */
|
|
|
|
if (CaseOp)
|
|
{
|
|
/* Convert the DEFAULT node to an ELSE */
|
|
|
|
if (!Conditional)
|
|
{
|
|
return;
|
|
}
|
|
|
|
TrAmlInitNode (DefaultOp, PARSEOP_ELSE);
|
|
DefaultOp->Asl.Parent = Conditional->Asl.Parent;
|
|
|
|
/* Link ELSE node as a peer to the previous IF */
|
|
|
|
TrAmlInsertPeer (Conditional, DefaultOp);
|
|
}
|
|
}
|
|
|
|
if (!CaseOp)
|
|
{
|
|
AslError (ASL_ERROR, ASL_MSG_NO_CASES, StartNode, NULL);
|
|
}
|
|
|
|
|
|
/*
|
|
* Create a Name(_T_x, ...) statement. This statement must appear at the
|
|
* method level, in case a loop surrounds the switch statement and could
|
|
* cause the name to be created twice (error).
|
|
*/
|
|
|
|
/* Create the Name node */
|
|
|
|
Predicate = StartNode->Asl.Child;
|
|
NewOp = TrCreateLeafNode (PARSEOP_NAME);
|
|
|
|
/* Find the parent method */
|
|
|
|
Next = StartNode;
|
|
while ((Next->Asl.ParseOpcode != PARSEOP_METHOD) &&
|
|
(Next->Asl.ParseOpcode != PARSEOP_DEFINITIONBLOCK))
|
|
{
|
|
Next = Next->Asl.Parent;
|
|
}
|
|
MethodOp = Next;
|
|
|
|
NewOp->Asl.CompileFlags |= NODE_COMPILER_EMITTED;
|
|
NewOp->Asl.Parent = Next;
|
|
|
|
/* Insert name after the method name and arguments */
|
|
|
|
Next = Next->Asl.Child; /* Name */
|
|
Next = Next->Asl.Next; /* NumArgs */
|
|
Next = Next->Asl.Next; /* SerializeRule */
|
|
|
|
/*
|
|
* If method is not Serialized, we must make is so, because of the way
|
|
* that Switch() must be implemented -- we cannot allow multiple threads
|
|
* to execute this method concurrently since we need to create local
|
|
* temporary name(s).
|
|
*/
|
|
if (Next->Asl.ParseOpcode != PARSEOP_SERIALIZERULE_SERIAL)
|
|
{
|
|
AslError (ASL_REMARK, ASL_MSG_SERIALIZED, MethodOp, "Due to use of Switch operator");
|
|
Next->Asl.ParseOpcode = PARSEOP_SERIALIZERULE_SERIAL;
|
|
}
|
|
|
|
Next = Next->Asl.Next; /* SyncLevel */
|
|
Next = Next->Asl.Next; /* ReturnType */
|
|
Next = Next->Asl.Next; /* ParameterTypes */
|
|
|
|
TrAmlInsertPeer (Next, NewOp);
|
|
TrAmlInitLineNumbers (NewOp, Next);
|
|
|
|
/* Create the NameSeg child for the Name node */
|
|
|
|
NewOp2 = TrCreateValuedLeafNode (PARSEOP_NAMESEG,
|
|
(UINT64) ACPI_TO_INTEGER (PredicateValueName));
|
|
NewOp2->Asl.CompileFlags |= NODE_IS_NAME_DECLARATION;
|
|
NewOp->Asl.Child = NewOp2;
|
|
|
|
/* Create the initial value for the Name. Btype was already validated above */
|
|
|
|
switch (Btype)
|
|
{
|
|
case ACPI_BTYPE_INTEGER:
|
|
NewOp2->Asl.Next = TrCreateValuedLeafNode (PARSEOP_ZERO,
|
|
(UINT64) 0);
|
|
break;
|
|
|
|
case ACPI_BTYPE_STRING:
|
|
NewOp2->Asl.Next = TrCreateValuedLeafNode (PARSEOP_STRING_LITERAL,
|
|
(UINT64) ACPI_TO_INTEGER (""));
|
|
break;
|
|
|
|
case ACPI_BTYPE_BUFFER:
|
|
(void) TrLinkPeerNode (NewOp2, TrCreateValuedLeafNode (PARSEOP_BUFFER,
|
|
(UINT64) 0));
|
|
Next = NewOp2->Asl.Next;
|
|
(void) TrLinkChildren (Next, 1, TrCreateValuedLeafNode (PARSEOP_ZERO,
|
|
(UINT64) 1));
|
|
(void) TrLinkPeerNode (Next->Asl.Child,
|
|
TrCreateValuedLeafNode (PARSEOP_DEFAULT_ARG, (UINT64) 0));
|
|
|
|
TrAmlSetSubtreeParent (Next->Asl.Child, Next);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
TrAmlSetSubtreeParent (NewOp2, NewOp);
|
|
|
|
/*
|
|
* Transform the Switch() into a While(One)-Break node.
|
|
* And create a Store() node which will be used to save the
|
|
* Switch() value. The store is of the form: Store (Value, _T_x)
|
|
* where _T_x is the temp variable.
|
|
*/
|
|
TrAmlInitNode (StartNode, PARSEOP_WHILE);
|
|
NewOp = TrCreateLeafNode (PARSEOP_ONE);
|
|
NewOp->Asl.Next = Predicate->Asl.Next;
|
|
NewOp->Asl.Parent = StartNode;
|
|
StartNode->Asl.Child = NewOp;
|
|
|
|
/* Create a Store() node */
|
|
|
|
StoreOp = TrCreateLeafNode (PARSEOP_STORE);
|
|
StoreOp->Asl.Parent = StartNode;
|
|
TrAmlInsertPeer (NewOp, StoreOp);
|
|
|
|
/* Complete the Store subtree */
|
|
|
|
StoreOp->Asl.Child = Predicate;
|
|
Predicate->Asl.Parent = StoreOp;
|
|
|
|
NewOp = TrCreateValuedLeafNode (PARSEOP_NAMESEG,
|
|
(UINT64) ACPI_TO_INTEGER (PredicateValueName));
|
|
NewOp->Asl.Parent = StoreOp;
|
|
Predicate->Asl.Next = NewOp;
|
|
|
|
/* Create a Break() node and insert it into the end of While() */
|
|
|
|
Conditional = StartNode->Asl.Child;
|
|
while (Conditional->Asl.Next)
|
|
{
|
|
Conditional = Conditional->Asl.Next;
|
|
}
|
|
|
|
BreakOp = TrCreateLeafNode (PARSEOP_BREAK);
|
|
BreakOp->Asl.Parent = StartNode;
|
|
TrAmlInsertPeer (Conditional, BreakOp);
|
|
}
|
|
|
|
|