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acpica/source/compiler/aslcodegen.c
aystarik e1d8f6832e change all functions of type ASL_WALK_CALLBACK to return ACPI_STATUS 
instead of void. No functional change other than to silence gcc warnings


date	2001.04.19.21.01.00;	author agrover;	state Exp;
2005-06-29 15:40:16 +00:00

603 lines
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/******************************************************************************
*
* Module Name: aslcodegen - AML code generation
* $Revision: 1.34 $
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999, 2000, 2001, 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 "aslresource.h"
#include "amlcode.h"
#include "acparser.h"
#define _COMPONENT ACPI_COMPILER
MODULE_NAME ("aslcodegen")
/*******************************************************************************
*
* FUNCTION: CgGenerateAmlOutput
*
* PARAMETERS: None.
*
* RETURN: None
*
* DESCRIPTION: Generate AML code. Currently generates the listing file
* simultaneously.
*
******************************************************************************/
void
CgGenerateAmlOutput (void)
{
DbgPrint (ASL_DEBUG_OUTPUT, "\nWriting AML\n\n");
FlSeekFile (ASL_FILE_SOURCE_OUTPUT, 0);
Gbl_SourceLine = 0;
LsPushNode (Gbl_Files[ASL_FILE_INPUT].Filename);
Gbl_NextError = Gbl_ErrorLog;
TrWalkParseTree (RootNode, ASL_WALK_VISIT_DOWNWARD, CgAmlWriteWalk, NULL, NULL);
if (Gbl_ListingFlag)
{
LsFinishSourceListing ();
FlPrintFile (ASL_FILE_LISTING_OUTPUT, "\n\nTable header with final checksum:\n\n");
}
CgCloseTable ();
}
/*******************************************************************************
*
* FUNCTION: CgAmlWriteWalk
*
* PARAMETERS: ASL_WALK_CALLBACK
*
* RETURN: None
*
* DESCRIPTION: Parse tree walk to generate the AML code.
*
******************************************************************************/
ACPI_STATUS
CgAmlWriteWalk (
ASL_PARSE_NODE *Node,
UINT32 Level,
void *Context)
{
DbgPrint (ASL_TREE_OUTPUT,
"%5.5d [%d]", Node->LogicalLineNumber, Level);
UtPrintFormattedName (Node->ParseOpcode, Level);
if (Node->ParseOpcode == NAMESEG ||
Node->ParseOpcode == NAMESTRING ||
Node->ParseOpcode == METHODCALL)
{
DbgPrint (ASL_TREE_OUTPUT,
"%10.32s ", Node->ExternalName);
}
else
{
DbgPrint (ASL_TREE_OUTPUT, " ");
}
DbgPrint (ASL_TREE_OUTPUT,
"Val-%08X POp-%04X AOp-%04X OpLen-%01X PByts-%01X Len-%04X SubLen-%04X PSubLen-%04X Node-%08X Chld-%08X Paren-%08X Flags-%04X AcTyp-%08X C-%2d L-%d\n",
Node->Value.Integer32,
Node->ParseOpcode,
Node->AmlOpcode,
Node->AmlOpcodeLength,
Node->AmlPkgLenBytes,
Node->AmlLength,
Node->AmlSubtreeLength,
Node->Parent ? Node->Parent->AmlSubtreeLength : 0,
Node,
Node->Child,
Node->Parent,
Node->Flags,
Node->AcpiBtype,
Node->Column,
Node->LineNumber);
LsWriteNodeToListing (Node);
CgWriteNode (Node);
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: CgLocalWriteAmlData
*
* PARAMETERS: Buffer - Buffer to write
* Length - Size of data in buffer
*
* RETURN: None
*
* DESCRIPTION: Write a buffer of AML data to the AML output file.
*
******************************************************************************/
void
CgLocalWriteAmlData (
void *Buffer,
UINT32 Length)
{
/* Write the raw data to the AML file */
FlWriteFile (ASL_FILE_AML_OUTPUT, Buffer, Length);
/* Write the hex bytes to the listing file (if requested) */
LsWriteListingHexBytes (Buffer, Length);
}
/*******************************************************************************
*
* FUNCTION: CgWriteAmlOpcode
*
* PARAMETERS: Node - Parse node with an AML opcode
*
* RETURN: None.
*
* DESCRIPTION: Write the AML opcode corresponding to a parse node.
*
******************************************************************************/
void
CgWriteAmlOpcode (
ASL_PARSE_NODE *Node)
{
union {
UINT16 Opcode;
UINT8 OpcodeBytes[2];
} Aml;
union {
UINT32 Len;
UINT8 LenBytes[4];
} PkgLen;
UINT8 PkgLenFirstByte;
UINT32 i;
/* We expect some DEFAULT_ARGs, just ignore them */
if (Node->ParseOpcode == DEFAULT_ARG)
{
return;
}
switch (Node->AmlOpcode)
{
case AML_UNASSIGNED_OPCODE:
/* These opcodes should not get here */
printf ("Found a node with an unassigned AML opcode\n");
fprintf (stderr, "Found a node with an unassigned AML opcode\n");
return;
break;
case AML_INT_RESERVEDFIELD_OP:
/* Special opcodes for within a field definition */
Aml.Opcode = 0x00;
break;
case AML_INT_ACCESSFIELD_OP:
Aml.Opcode = 0x01;
break;
default:
Aml.Opcode = Node->AmlOpcode;
break;
}
switch (Aml.Opcode)
{
case AML_PACKAGE_LENGTH:
/* Value is the length to be encoded (Used in field definitions) */
PkgLen.Len = Node->Value.Integer32;
break;
default:
/* Check for two-byte opcode */
if (Aml.Opcode > 0x00FF)
{
/* Write the high byte first */
CgLocalWriteAmlData (&Aml.OpcodeBytes[1], 1);
}
CgLocalWriteAmlData (&Aml.OpcodeBytes[0], 1);
/* Subtreelength doesn't include length of package length bytes */
PkgLen.Len = Node->AmlSubtreeLength + Node->AmlPkgLenBytes;
break;
}
/* Does this opcode have an associated "PackageLength" field? */
if (Node->Flags & NODE_AML_PACKAGE)
{
if (Node->AmlPkgLenBytes == 1)
{
/* Simplest case -- no bytes to follow, just write the count */
CgLocalWriteAmlData(&PkgLen.LenBytes[0], 1);
}
else
{
/*
* Encode the "bytes to follow" in the first byte, top two bits.
* The low-order nybble of the length is in the bottom 4 bits
*/
PkgLenFirstByte = (UINT8) (((Node->AmlPkgLenBytes - 1) << 6) |
(PkgLen.LenBytes[0] & 0x0F));
CgLocalWriteAmlData (&PkgLenFirstByte, 1);
/* Shift the length over by the 4 bits we just stuffed in the first byte */
PkgLen.Len >>= 4;
/* Now we can write the remaining bytes - either 1, 2, or 3 bytes */
for (i = 0; i < (UINT32) (Node->AmlPkgLenBytes - 1); i++)
{
CgLocalWriteAmlData (&PkgLen.LenBytes[i], 1);
}
}
}
switch (Aml.Opcode)
{
case AML_BYTE_OP:
CgLocalWriteAmlData (&Node->Value.Integer8, 1);
break;
case AML_WORD_OP:
CgLocalWriteAmlData (&Node->Value.Integer16, 2);
break;
case AML_DWORD_OP:
CgLocalWriteAmlData (&Node->Value.Integer32, 4);
break;
case AML_QWORD_OP:
CgLocalWriteAmlData (&Node->Value.Integer64, 8);
break;
case AML_STRING_OP:
CgLocalWriteAmlData (Node->Value.String, Node->AmlLength);
}
}
/*******************************************************************************
*
* FUNCTION: CgWriteTableHeader
*
* PARAMETERS: Node - The DEFINITIONBLOCK node
*
* RETURN: None.
*
* DESCRIPTION: Write a table header corresponding to the DEFINITIONBLOCK
*
******************************************************************************/
void
CgWriteTableHeader (
ASL_PARSE_NODE *Node)
{
ASL_PARSE_NODE *Child;
/* AML filename */
Child = Node->Child;
/* Signature */
Child = Child->Peer;
strncpy (TableHeader.Signature, Child->Value.String, 4);
/* Revision */
Child = Child->Peer;
TableHeader.Revision = Child->Value.Integer8;
/* OEMID */
Child = Child->Peer;
strncpy (TableHeader.OemId, Child->Value.String, 6);
/* OEM TableID */
Child = Child->Peer;
strncpy (TableHeader.OemTableId, Child->Value.String, 8);
/* OEM Revision */
Child = Child->Peer;
TableHeader.OemRevision = Child->Value.Integer32;
/* Compiler ID */
strncpy (TableHeader.AslCompilerId, CompilerCreatorId, 4);
/* Compiler version */
TableHeader.AslCompilerRevision = CompilerCreatorRevision;
/* Table length. Checksum zero for now, will rewrite later */
TableHeader.Length = Gbl_TableLength;
TableHeader.Checksum = 0;
CgLocalWriteAmlData (&TableHeader, sizeof (ACPI_TABLE_HEADER));
}
/*******************************************************************************
*
* FUNCTION: CgCloseTable
*
* PARAMETERS: None.
*
* RETURN: None.
*
* DESCRIPTION: Complete the ACPI table by calculating the checksum and
* re-writing the header.
*
******************************************************************************/
void
CgCloseTable (void)
{
signed char Sum;
UINT8 FileByte;
/* Calculate the checksum over the entire file */
FlSeekFile (ASL_FILE_AML_OUTPUT, 0);
Sum = 0;
while (FlReadFile (ASL_FILE_AML_OUTPUT, &FileByte, 1) == AE_OK)
{
Sum = (signed char) (Sum + FileByte);
}
/* Re-write the table header with the checksum */
TableHeader.Checksum = (UINT8) (0 - Sum);
FlSeekFile (ASL_FILE_AML_OUTPUT, 0);
CgLocalWriteAmlData (&TableHeader, sizeof (ACPI_TABLE_HEADER));
}
/*******************************************************************************
*
* FUNCTION: CgWriteNode
*
* PARAMETERS: Node - Parse node to write.
*
* RETURN: None.
*
* DESCRIPTION: Write the AML that corresponds to a parse node.
*
******************************************************************************/
void
CgWriteNode (
ASL_PARSE_NODE *Node)
{
ASL_RESOURCE_NODE *Rnode;
/* Always check for DEFAULT_ARG and other "Noop" nodes */
/* TBD: this may not be the best place for this check */
if ((Node->ParseOpcode == DEFAULT_ARG) ||
(Node->ParseOpcode == EXTERNAL) ||
(Node->ParseOpcode == INCLUDE) ||
(Node->ParseOpcode == INCLUDE_END))
{
return;
}
switch (Node->AmlOpcode)
{
case AML_RAW_DATA_BYTE:
case AML_RAW_DATA_WORD:
case AML_RAW_DATA_DWORD:
case AML_RAW_DATA_QWORD:
CgLocalWriteAmlData (&Node->Value.Integer, Node->AmlLength);
return;
case AML_RAW_DATA_BUFFER:
CgLocalWriteAmlData (Node->Value.Pointer, Node->AmlLength);
return;
case AML_RAW_DATA_CHAIN:
Rnode = Node->Value.Pointer;
while (Rnode)
{
CgLocalWriteAmlData (Rnode->Buffer, Rnode->BufferLength);
Rnode = Rnode->Next;
}
return;
}
switch (Node->ParseOpcode)
{
case DEFAULT_ARG:
break;
case DEFINITIONBLOCK:
CgWriteTableHeader (Node);
break;
case NAMESEG:
case NAMESTRING:
case METHODCALL:
CgLocalWriteAmlData (Node->Value.String, Node->AmlLength);
break;
default:
CgWriteAmlOpcode (Node);
break;
}
}
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