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acpica/source/compiler/asloperands.c
Robert Moore bce1fbe326 Remove obsolete ACPI_INTEGER (acpi_integer) type. 
This type was introduced as the code was migrated from ACPI 1.0 (with 32-bit
AML integers) to ACPI 2.0 (with 64-bit integers). It is now obsolete and
this change removes it from the ACPICA code base, replaced by UINT64.
The original typedef has been retained for now for compatibility with
existing device driver code.
2010-01-19 13:39:26 -08:00

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/******************************************************************************
*
* Module Name: asloperands - AML operand processing
*
*****************************************************************************/
/******************************************************************************
*
* 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.
*
*****************************************************************************/
#include "aslcompiler.h"
#include "aslcompiler.y.h"
#include "amlcode.h"
#define _COMPONENT ACPI_COMPILER
ACPI_MODULE_NAME ("asloperands")
/* Local prototypes */
static void
OpnDoField (
ACPI_PARSE_OBJECT *Op);
static void
OpnDoBankField (
ACPI_PARSE_OBJECT *Op);
static void
OpnDoBuffer (
ACPI_PARSE_OBJECT *Op);
static void
OpnDoDefinitionBlock (
ACPI_PARSE_OBJECT *Op);
static void
OpnDoFieldCommon (
ACPI_PARSE_OBJECT *FieldOp,
ACPI_PARSE_OBJECT *Op);
static void
OpnDoIndexField (
ACPI_PARSE_OBJECT *Op);
static void
OpnDoLoadTable (
ACPI_PARSE_OBJECT *Op);
static void
OpnDoMethod (
ACPI_PARSE_OBJECT *Op);
static void
OpnDoMutex (
ACPI_PARSE_OBJECT *Op);
static void
OpnDoRegion (
ACPI_PARSE_OBJECT *Op);
static void
OpnAttachNameToNode (
ACPI_PARSE_OBJECT *Op);
/*******************************************************************************
*
* FUNCTION: OpnDoMutex
*
* PARAMETERS: Op - The parent parse node
*
* RETURN: None
*
* DESCRIPTION: Construct the operands for the MUTEX ASL keyword.
*
******************************************************************************/
static void
OpnDoMutex (
ACPI_PARSE_OBJECT *Op)
{
ACPI_PARSE_OBJECT *Next;
Next = Op->Asl.Child;
Next = Next->Asl.Next;
if (Next->Asl.Value.Integer > 15)
{
AslError (ASL_ERROR, ASL_MSG_SYNC_LEVEL, Next, NULL);
}
return;
}
/*******************************************************************************
*
* FUNCTION: OpnDoMethod
*
* PARAMETERS: Op - The parent parse node
*
* RETURN: None
*
* DESCRIPTION: Construct the operands for the METHOD ASL keyword.
*
******************************************************************************/
static void
OpnDoMethod (
ACPI_PARSE_OBJECT *Op)
{
ACPI_PARSE_OBJECT *Next;
/* Optional arguments for this opcode with defaults */
UINT8 NumArgs = 0;
UINT8 Serialized = 0;
UINT8 Concurrency = 0;
UINT8 MethodFlags;
/* Opcode and package length first */
/* Method name */
Next = Op->Asl.Child;
/* Num args */
Next = Next->Asl.Next;
if (Next->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
{
NumArgs = (UINT8) Next->Asl.Value.Integer;
Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
}
/* Serialized Flag */
Next = Next->Asl.Next;
if (Next->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
{
Serialized = (UINT8) Next->Asl.Value.Integer;
Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
}
/* Concurrency value (valid values are 0-15) */
Next = Next->Asl.Next;
if (Next->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
{
if (Next->Asl.Value.Integer > 15)
{
AslError (ASL_ERROR, ASL_MSG_SYNC_LEVEL, Next, NULL);
}
Concurrency = (UINT8) Next->Asl.Value.Integer;
}
/* Put the bits in their proper places */
MethodFlags = (UINT8) ((NumArgs & 0x7) |
((Serialized & 0x1) << 3) |
((Concurrency & 0xF) << 4));
/* Use the last node for the combined flags byte */
Next->Asl.Value.Integer = MethodFlags;
Next->Asl.AmlOpcode = AML_RAW_DATA_BYTE;
Next->Asl.AmlLength = 1;
Next->Asl.ParseOpcode = PARSEOP_RAW_DATA;
/* Save the arg count in the first node */
Op->Asl.Extra = NumArgs;
}
/*******************************************************************************
*
* FUNCTION: OpnDoFieldCommon
*
* PARAMETERS: FieldOp - Node for an ASL field
* Op - The parent parse node
*
* RETURN: None
*
* DESCRIPTION: Construct the AML operands for the various field keywords,
* FIELD, BANKFIELD, INDEXFIELD
*
******************************************************************************/
static void
OpnDoFieldCommon (
ACPI_PARSE_OBJECT *FieldOp,
ACPI_PARSE_OBJECT *Op)
{
ACPI_PARSE_OBJECT *Next;
ACPI_PARSE_OBJECT *PkgLengthNode;
UINT32 CurrentBitOffset;
UINT32 NewBitOffset;
UINT8 AccessType;
UINT8 LockRule;
UINT8 UpdateRule;
UINT8 FieldFlags;
UINT32 MinimumLength;
/* AccessType -- not optional, so no need to check for DEFAULT_ARG */
AccessType = (UINT8) Op->Asl.Value.Integer;
Op->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
/* Set the access type in the parent (field) node for use later */
FieldOp->Asl.Value.Integer = AccessType;
/* LockRule -- not optional, so no need to check for DEFAULT_ARG */
Next = Op->Asl.Next;
LockRule = (UINT8) Next->Asl.Value.Integer;
Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
/* UpdateRule -- not optional, so no need to check for DEFAULT_ARG */
Next = Next->Asl.Next;
UpdateRule = (UINT8) Next->Asl.Value.Integer;
/*
* Generate the flags byte. The various fields are already
* in the right bit position via translation from the
* keywords by the parser.
*/
FieldFlags = (UINT8) (AccessType | LockRule | UpdateRule);
/* Use the previous node to be the FieldFlags node */
/* Set the node to RAW_DATA */
Next->Asl.Value.Integer = FieldFlags;
Next->Asl.AmlOpcode = AML_RAW_DATA_BYTE;
Next->Asl.AmlLength = 1;
Next->Asl.ParseOpcode = PARSEOP_RAW_DATA;
/* Process the FieldUnitList */
Next = Next->Asl.Next;
CurrentBitOffset = 0;
while (Next)
{
/* Save the offset of this field unit */
Next->Asl.ExtraValue = CurrentBitOffset;
switch (Next->Asl.ParseOpcode)
{
case PARSEOP_ACCESSAS:
PkgLengthNode = Next->Asl.Child;
AccessType = (UINT8) PkgLengthNode->Asl.Value.Integer;
/* Nothing additional to do */
break;
case PARSEOP_OFFSET:
/* New offset into the field */
PkgLengthNode = Next->Asl.Child;
NewBitOffset = ((UINT32) PkgLengthNode->Asl.Value.Integer) * 8;
/*
* Examine the specified offset in relation to the
* current offset counter.
*/
if (NewBitOffset < CurrentBitOffset)
{
/*
* Not allowed to specify a backwards offset!
* Issue error and ignore this node.
*/
AslError (ASL_ERROR, ASL_MSG_BACKWARDS_OFFSET, PkgLengthNode,
NULL);
Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
PkgLengthNode->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
}
else if (NewBitOffset == CurrentBitOffset)
{
/*
* Offset is redundant; we don't need to output an
* offset opcode. Just set these nodes to default
*/
Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
PkgLengthNode->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
}
else
{
/*
* Valid new offset - set the value to be inserted into the AML
* and update the offset counter.
*/
PkgLengthNode->Asl.Value.Integer =
NewBitOffset - CurrentBitOffset;
CurrentBitOffset = NewBitOffset;
}
break;
case PARSEOP_NAMESEG:
case PARSEOP_RESERVED_BYTES:
/* Named or reserved field entry */
PkgLengthNode = Next->Asl.Child;
NewBitOffset = (UINT32) PkgLengthNode->Asl.Value.Integer;
CurrentBitOffset += NewBitOffset;
/* Save the current AccessAs value for error checking later */
switch (AccessType)
{
case AML_FIELD_ACCESS_ANY:
case AML_FIELD_ACCESS_BYTE:
case AML_FIELD_ACCESS_BUFFER:
default:
MinimumLength = 8;
break;
case AML_FIELD_ACCESS_WORD:
MinimumLength = 16;
break;
case AML_FIELD_ACCESS_DWORD:
MinimumLength = 32;
break;
case AML_FIELD_ACCESS_QWORD:
MinimumLength = 64;
break;
}
PkgLengthNode->Asl.ExtraValue = MinimumLength;
break;
default:
/* All supported field opcodes must appear above */
break;
}
/* Move on to next entry in the field list */
Next = Next->Asl.Next;
}
}
/*******************************************************************************
*
* FUNCTION: OpnDoField
*
* PARAMETERS: Op - The parent parse node
*
* RETURN: None
*
* DESCRIPTION: Construct the AML operands for the FIELD ASL keyword
*
******************************************************************************/
static void
OpnDoField (
ACPI_PARSE_OBJECT *Op)
{
ACPI_PARSE_OBJECT *Next;
/* Opcode is parent node */
/* First child is field name */
Next = Op->Asl.Child;
/* Second child is the AccessType */
OpnDoFieldCommon (Op, Next->Asl.Next);
}
/*******************************************************************************
*
* FUNCTION: OpnDoIndexField
*
* PARAMETERS: Op - The parent parse node
*
* RETURN: None
*
* DESCRIPTION: Construct the AML operands for the INDEXFIELD ASL keyword
*
******************************************************************************/
static void
OpnDoIndexField (
ACPI_PARSE_OBJECT *Op)
{
ACPI_PARSE_OBJECT *Next;
/* Opcode is parent node */
/* First child is the index name */
Next = Op->Asl.Child;
/* Second child is the data name */
Next = Next->Asl.Next;
/* Third child is the AccessType */
OpnDoFieldCommon (Op, Next->Asl.Next);
}
/*******************************************************************************
*
* FUNCTION: OpnDoBankField
*
* PARAMETERS: Op - The parent parse node
*
* RETURN: None
*
* DESCRIPTION: Construct the AML operands for the BANKFIELD ASL keyword
*
******************************************************************************/
static void
OpnDoBankField (
ACPI_PARSE_OBJECT *Op)
{
ACPI_PARSE_OBJECT *Next;
/* Opcode is parent node */
/* First child is the region name */
Next = Op->Asl.Child;
/* Second child is the bank name */
Next = Next->Asl.Next;
/* Third child is the bank value */
Next = Next->Asl.Next;
/* Fourth child is the AccessType */
OpnDoFieldCommon (Op, Next->Asl.Next);
}
/*******************************************************************************
*
* FUNCTION: OpnDoRegion
*
* PARAMETERS: Op - The parent parse node
*
* RETURN: None
*
* DESCRIPTION: Tries to get the length of the region. Can only do this at
* compile time if the length is a constant.
*
******************************************************************************/
static void
OpnDoRegion (
ACPI_PARSE_OBJECT *Op)
{
ACPI_PARSE_OBJECT *Next;
/* Opcode is parent node */
/* First child is the region name */
Next = Op->Asl.Child;
/* Second child is the space ID*/
Next = Next->Asl.Next;
/* Third child is the region offset */
Next = Next->Asl.Next;
/* Fourth child is the region length */
Next = Next->Asl.Next;
if (Next->Asl.ParseOpcode == PARSEOP_INTEGER)
{
Op->Asl.Value.Integer = Next->Asl.Value.Integer;
}
else
{
Op->Asl.Value.Integer = ACPI_UINT64_MAX;
}
}
/*******************************************************************************
*
* FUNCTION: OpnDoBuffer
*
* PARAMETERS: Op - The parent parse node
*
* RETURN: None
*
* DESCRIPTION: Construct the AML operands for the BUFFER ASL keyword. We
* build a single raw byte buffer from the initialization nodes,
* each parse node contains a buffer byte.
*
******************************************************************************/
static void
OpnDoBuffer (
ACPI_PARSE_OBJECT *Op)
{
ACPI_PARSE_OBJECT *InitializerOp;
ACPI_PARSE_OBJECT *BufferLengthOp;
/* Optional arguments for this opcode with defaults */
UINT32 BufferLength = 0;
/* Opcode and package length first */
/* Buffer Length is next, followed by the initializer list */
BufferLengthOp = Op->Asl.Child;
InitializerOp = BufferLengthOp->Asl.Next;
/*
* If the BufferLength is not an INTEGER or was not specified in the ASL
* (DEFAULT_ARG), it is a TermArg that is
* evaluated at run-time, and we are therefore finished.
*/
if ((BufferLengthOp->Asl.ParseOpcode != PARSEOP_INTEGER) &&
(BufferLengthOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG))
{
return;
}
/*
* We want to count the number of items in the initializer list, because if
* it is larger than the buffer length, we will define the buffer size
* to be the size of the initializer list (as per the ACPI Specification)
*/
switch (InitializerOp->Asl.ParseOpcode)
{
case PARSEOP_INTEGER:
case PARSEOP_BYTECONST:
case PARSEOP_WORDCONST:
case PARSEOP_DWORDCONST:
/* The peer list contains the byte list (if any...) */
while (InitializerOp)
{
/* For buffers, this is a list of raw bytes */
InitializerOp->Asl.AmlOpcode = AML_RAW_DATA_BYTE;
InitializerOp->Asl.AmlLength = 1;
InitializerOp->Asl.ParseOpcode = PARSEOP_RAW_DATA;
BufferLength++;
InitializerOp = ASL_GET_PEER_NODE (InitializerOp);
}
break;
case PARSEOP_STRING_LITERAL:
/*
* Only one initializer, the string. Buffer must be big enough to hold
* the string plus the null termination byte
*/
BufferLength = strlen (InitializerOp->Asl.Value.String) + 1;
InitializerOp->Asl.AmlOpcode = AML_RAW_DATA_BUFFER;
InitializerOp->Asl.AmlLength = BufferLength;
InitializerOp->Asl.ParseOpcode = PARSEOP_RAW_DATA;
break;
case PARSEOP_RAW_DATA:
/* Buffer nodes are already initialized (e.g. Unicode operator) */
return;
case PARSEOP_DEFAULT_ARG:
break;
default:
AslError (ASL_ERROR, ASL_MSG_INVALID_OPERAND, InitializerOp,
"Unknown buffer initializer opcode");
printf ("Unknown buffer initializer opcode [%s]\n",
UtGetOpName (InitializerOp->Asl.ParseOpcode));
return;
}
/* Check if initializer list is longer than the buffer length */
if (BufferLengthOp->Asl.Value.Integer > BufferLength)
{
BufferLength = (UINT32) BufferLengthOp->Asl.Value.Integer;
}
if (!BufferLength)
{
/* No length AND no items -- issue notice */
AslError (ASL_REMARK, ASL_MSG_BUFFER_LENGTH, BufferLengthOp, NULL);
/* But go ahead and put the buffer length of zero into the AML */
}
/*
* Just set the buffer size node to be the buffer length, regardless
* of whether it was previously an integer or a default_arg placeholder
*/
BufferLengthOp->Asl.ParseOpcode = PARSEOP_INTEGER;
BufferLengthOp->Asl.AmlOpcode = AML_DWORD_OP;
BufferLengthOp->Asl.Value.Integer = BufferLength;
(void) OpcSetOptimalIntegerSize (BufferLengthOp);
/* Remaining nodes are handled via the tree walk */
}
/*******************************************************************************
*
* FUNCTION: OpnDoPackage
*
* PARAMETERS: Op - The parent parse node
*
* RETURN: None
*
* DESCRIPTION: Construct the AML operands for the PACKAGE ASL keyword. NOTE:
* can only be called after constants have been folded, to ensure
* that the PackageLength operand has been fully reduced.
*
******************************************************************************/
void
OpnDoPackage (
ACPI_PARSE_OBJECT *Op)
{
ACPI_PARSE_OBJECT *InitializerOp;
ACPI_PARSE_OBJECT *PackageLengthOp;
UINT32 PackageLength = 0;
/* Opcode and package length first, followed by the initializer list */
PackageLengthOp = Op->Asl.Child;
InitializerOp = PackageLengthOp->Asl.Next;
/* Count the number of items in the initializer list */
if (InitializerOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
{
/* The peer list contains the byte list (if any...) */
while (InitializerOp)
{
PackageLength++;
InitializerOp = InitializerOp->Asl.Next;
}
}
/* If package length is a constant, compare to the initializer list */
if ((PackageLengthOp->Asl.ParseOpcode == PARSEOP_INTEGER) ||
(PackageLengthOp->Asl.ParseOpcode == PARSEOP_QWORDCONST))
{
if (PackageLengthOp->Asl.Value.Integer > PackageLength)
{
/*
* Allow package length to be longer than the initializer
* list -- but if the length of initializer list is nonzero,
* issue a message since this is probably a coding error,
* even though technically legal.
*/
if (PackageLength > 0)
{
AslError (ASL_REMARK, ASL_MSG_LIST_LENGTH_SHORT,
PackageLengthOp, NULL);
}
PackageLength = (UINT32) PackageLengthOp->Asl.Value.Integer;
}
else if (PackageLengthOp->Asl.Value.Integer < PackageLength)
{
/*
* The package length is smaller than the length of the
* initializer list. This is an error as per the ACPI spec.
*/
AslError (ASL_ERROR, ASL_MSG_LIST_LENGTH_LONG,
PackageLengthOp, NULL);
}
}
if (PackageLengthOp->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG)
{
/*
* This is the case if the PackageLength was left empty - Package()
* The package length becomes the length of the initializer list
*/
Op->Asl.Child->Asl.ParseOpcode = PARSEOP_INTEGER;
Op->Asl.Child->Asl.Value.Integer = PackageLength;
/* Set the AML opcode */
(void) OpcSetOptimalIntegerSize (Op->Asl.Child);
}
/* If not a variable-length package, check for a zero package length */
if ((PackageLengthOp->Asl.ParseOpcode == PARSEOP_INTEGER) ||
(PackageLengthOp->Asl.ParseOpcode == PARSEOP_QWORDCONST) ||
(PackageLengthOp->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG))
{
if (!PackageLength)
{
/* No length AND no initializer list -- issue a remark */
AslError (ASL_REMARK, ASL_MSG_PACKAGE_LENGTH,
PackageLengthOp, NULL);
/* But go ahead and put the buffer length of zero into the AML */
}
}
/*
* If the PackageLength is a constant <= 255, we can change the
* AML opcode from VarPackage to a simple (ACPI 1.0) Package opcode.
*/
if ((Op->Asl.Child->Asl.ParseOpcode == PARSEOP_INTEGER) &&
(Op->Asl.Child->Asl.Value.Integer <= 255))
{
Op->Asl.AmlOpcode = AML_PACKAGE_OP;
Op->Asl.ParseOpcode = PARSEOP_PACKAGE;
/*
* Just set the package size node to be the package length, regardless
* of whether it was previously an integer or a default_arg placeholder
*/
PackageLengthOp->Asl.AmlOpcode = AML_RAW_DATA_BYTE;
PackageLengthOp->Asl.AmlLength = 1;
PackageLengthOp->Asl.ParseOpcode = PARSEOP_RAW_DATA;
PackageLengthOp->Asl.Value.Integer = PackageLength;
}
/* Remaining nodes are handled via the tree walk */
}
/*******************************************************************************
*
* FUNCTION: OpnDoLoadTable
*
* PARAMETERS: Op - The parent parse node
*
* RETURN: None
*
* DESCRIPTION: Construct the AML operands for the LOADTABLE ASL keyword.
*
******************************************************************************/
static void
OpnDoLoadTable (
ACPI_PARSE_OBJECT *Op)
{
ACPI_PARSE_OBJECT *Next;
/* Opcode is parent node */
/* First child is the table signature */
Next = Op->Asl.Child;
/* Second child is the OEM ID*/
Next = Next->Asl.Next;
/* Third child is the OEM table ID */
Next = Next->Asl.Next;
/* Fourth child is the RootPath string */
Next = Next->Asl.Next;
if (Next->Asl.ParseOpcode == PARSEOP_ZERO)
{
Next->Asl.ParseOpcode = PARSEOP_STRING_LITERAL;
Next->Asl.Value.String = "\\";
Next->Asl.AmlLength = 2;
OpcGenerateAmlOpcode (Next);
}
#ifdef ASL_FUTURE_IMPLEMENTATION
/* TBD: NOT IMPLEMENTED */
/* Fifth child is the [optional] ParameterPathString */
/* Sixth child is the [optional] ParameterData */
Next = Next->Asl.Next;
if (Next->Asl.ParseOpcode == DEFAULT_ARG)
{
Next->Asl.AmlLength = 1;
Next->Asl.ParseOpcode = ZERO;
OpcGenerateAmlOpcode (Next);
}
Next = Next->Asl.Next;
if (Next->Asl.ParseOpcode == DEFAULT_ARG)
{
Next->Asl.AmlLength = 1;
Next->Asl.ParseOpcode = ZERO;
OpcGenerateAmlOpcode (Next);
}
#endif
}
/*******************************************************************************
*
* FUNCTION: OpnDoDefinitionBlock
*
* PARAMETERS: Op - The parent parse node
*
* RETURN: None
*
* DESCRIPTION: Construct the AML operands for the DEFINITIONBLOCK ASL keyword
*
******************************************************************************/
static void
OpnDoDefinitionBlock (
ACPI_PARSE_OBJECT *Op)
{
ACPI_PARSE_OBJECT *Child;
ACPI_SIZE Length;
UINT32 i;
char *Filename;
/*
* These nodes get stuffed into the table header. They are special
* cased when the table is written to the output file.
*
* Mark all of these nodes as non-usable so they won't get output
* as AML opcodes!
*/
/* Get AML filename. Use it if non-null */
Child = Op->Asl.Child;
if (Child->Asl.Value.Buffer &&
*Child->Asl.Value.Buffer &&
(Gbl_UseDefaultAmlFilename))
{
/*
* We will use the AML filename that is embedded in the source file
* for the output filename.
*/
Filename = ACPI_ALLOCATE (strlen (Gbl_DirectoryPath) +
strlen ((char *) Child->Asl.Value.Buffer) + 1);
/* Prepend the current directory path */
strcpy (Filename, Gbl_DirectoryPath);
strcat (Filename, (char *) Child->Asl.Value.Buffer);
Gbl_OutputFilenamePrefix = Filename;
}
Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
/* Signature */
Child = Child->Asl.Next;
Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
if (Child->Asl.Value.String)
{
Gbl_TableSignature = Child->Asl.Value.String;
if (ACPI_STRLEN (Gbl_TableSignature) != 4)
{
AslError (ASL_ERROR, ASL_MSG_TABLE_SIGNATURE, Child,
"Length not exactly 4");
}
for (i = 0; i < 4; i++)
{
if (!isalnum ((int) Gbl_TableSignature[i]))
{
AslError (ASL_ERROR, ASL_MSG_TABLE_SIGNATURE, Child,
"Contains non-alphanumeric characters");
}
}
}
/* Revision */
Child = Child->Asl.Next;
Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
/*
* We used the revision to set the integer width earlier
*/
/* OEMID */
Child = Child->Asl.Next;
Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
/* OEM TableID */
Child = Child->Asl.Next;
Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
if (Child->Asl.Value.String)
{
Length = ACPI_STRLEN (Child->Asl.Value.String);
Gbl_TableId = AcpiOsAllocate (Length + 1);
ACPI_STRCPY (Gbl_TableId, Child->Asl.Value.String);
for (i = 0; i < Length; i++)
{
if (Gbl_TableId[i] == ' ')
{
Gbl_TableId[i] = 0;
break;
}
}
}
/* OEM Revision */
Child = Child->Asl.Next;
Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
}
/*******************************************************************************
*
* FUNCTION: UtGetArg
*
* PARAMETERS: Op - Get an argument for this op
* Argn - Nth argument to get
*
* RETURN: The argument (as an Op object). NULL if argument does not exist
*
* DESCRIPTION: Get the specified op's argument (peer)
*
******************************************************************************/
ACPI_PARSE_OBJECT *
UtGetArg (
ACPI_PARSE_OBJECT *Op,
UINT32 Argn)
{
ACPI_PARSE_OBJECT *Arg = NULL;
/* Get the requested argument object */
Arg = Op->Asl.Child;
while (Arg && Argn)
{
Argn--;
Arg = Arg->Asl.Next;
}
return (Arg);
}
/*******************************************************************************
*
* FUNCTION: OpnAttachNameToNode
*
* PARAMETERS: Op - The parent parse node
*
* RETURN: None
*
* DESCRIPTION: For the named ASL/AML operators, get the actual name from the
* argument list and attach it to the parent node so that we
* can get to it quickly later.
*
******************************************************************************/
static void
OpnAttachNameToNode (
ACPI_PARSE_OBJECT *Op)
{
ACPI_PARSE_OBJECT *Child = NULL;
if (Op->Asl.ParseOpcode == PARSEOP_EXTERNAL)
{
Child = UtGetArg (Op, 0);
}
else switch (Op->Asl.AmlOpcode)
{
case AML_DATA_REGION_OP:
case AML_DEVICE_OP:
case AML_EVENT_OP:
case AML_METHOD_OP:
case AML_MUTEX_OP:
case AML_REGION_OP:
case AML_POWER_RES_OP:
case AML_PROCESSOR_OP:
case AML_THERMAL_ZONE_OP:
case AML_NAME_OP:
case AML_SCOPE_OP:
Child = UtGetArg (Op, 0);
break;
case AML_ALIAS_OP:
Child = UtGetArg (Op, 1);
break;
case AML_CREATE_BIT_FIELD_OP:
case AML_CREATE_BYTE_FIELD_OP:
case AML_CREATE_WORD_FIELD_OP:
case AML_CREATE_DWORD_FIELD_OP:
case AML_CREATE_QWORD_FIELD_OP:
Child = UtGetArg (Op, 2);
break;
case AML_CREATE_FIELD_OP:
Child = UtGetArg (Op, 3);
break;
case AML_BANK_FIELD_OP:
case AML_INDEX_FIELD_OP:
case AML_FIELD_OP:
return;
default:
return;
}
if (Child)
{
UtAttachNamepathToOwner (Op, Child);
}
}
/*******************************************************************************
*
* FUNCTION: OpnGenerateAmlOperands
*
* 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).
*
******************************************************************************/
void
OpnGenerateAmlOperands (
ACPI_PARSE_OBJECT *Op)
{
if (Op->Asl.AmlOpcode == AML_RAW_DATA_BYTE)
{
return;
}
switch (Op->Asl.ParseOpcode)
{
case PARSEOP_DEFINITIONBLOCK:
OpnDoDefinitionBlock (Op);
break;
case PARSEOP_METHOD:
OpnDoMethod (Op);
break;
case PARSEOP_MUTEX:
OpnDoMutex (Op);
break;
case PARSEOP_FIELD:
OpnDoField (Op);
break;
case PARSEOP_INDEXFIELD:
OpnDoIndexField (Op);
break;
case PARSEOP_BANKFIELD:
OpnDoBankField (Op);
break;
case PARSEOP_BUFFER:
OpnDoBuffer (Op);
break;
case PARSEOP_LOADTABLE:
OpnDoLoadTable (Op);
break;
case PARSEOP_OPERATIONREGION:
OpnDoRegion (Op);
break;
case PARSEOP_RESOURCETEMPLATE:
RsDoResourceTemplate (Op);
break;
case PARSEOP_NAMESEG:
case PARSEOP_NAMESTRING:
case PARSEOP_METHODCALL:
case PARSEOP_STRING_LITERAL:
break;
default:
break;
}
/* TBD: move */
OpnAttachNameToNode (Op);
}
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