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| Current File : //usr/src/sys/contrib/dev/acpica/compiler/asloperands.c |
/******************************************************************************
*
* Module Name: asloperands - AML operand processing
*
*****************************************************************************/
/*
* Copyright (C) 2000 - 2011, 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 <contrib/dev/acpica/compiler/aslcompiler.h>
#include "aslcompiler.y.h"
#include <contrib/dev/acpica/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);
}