895 lines
24 KiB
C
895 lines
24 KiB
C
/******************************************************************************
|
|
*
|
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* Module Name: dtutils.c - Utility routines for the data table compiler
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/******************************************************************************
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*
|
|
* 1. Copyright Notice
|
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*
|
|
* Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
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* All rights reserved.
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*
|
|
* 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
|
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* you this software, covering your right to use that party's intellectual
|
|
* property rights.
|
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*
|
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* 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
|
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* license (with the right to sublicense), under only those claims of Intel
|
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* 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;
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*
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* The above copyright and patent license is granted only if the following
|
|
* conditions are met:
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*
|
|
* 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.
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|
*
|
|
* 3.4. Intel retains all right, title, and interest in and to the Original
|
|
* Intel Code.
|
|
*
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|
* 3.5. Neither the name Intel nor any other trademark owned or controlled by
|
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* 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.
|
|
*
|
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* 4. Disclaimer and Export Compliance
|
|
*
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* 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.
|
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*
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|
* 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
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|
* 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
|
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* such license, approval or letter.
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|
*
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*****************************************************************************/
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#define __DTUTILS_C__
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|
#include "aslcompiler.h"
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#include "dtcompiler.h"
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#include "actables.h"
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|
#define _COMPONENT DT_COMPILER
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ACPI_MODULE_NAME ("dtutils")
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|
/* Local prototypes */
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|
|
|
static void
|
|
DtSum (
|
|
DT_SUBTABLE *Subtable,
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|
void *Context,
|
|
void *ReturnValue);
|
|
|
|
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|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtError
|
|
*
|
|
* PARAMETERS: Level - Seriousness (Warning/error, etc.)
|
|
* MessageId - Index into global message buffer
|
|
* Op - Parse node where error happened
|
|
* ExtraMessage - additional error message
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Common error interface for data table compiler
|
|
*
|
|
*****************************************************************************/
|
|
|
|
void
|
|
DtError (
|
|
UINT8 Level,
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|
UINT8 MessageId,
|
|
DT_FIELD *FieldObject,
|
|
char *ExtraMessage)
|
|
{
|
|
|
|
switch (Level)
|
|
{
|
|
case ASL_WARNING2:
|
|
case ASL_WARNING3:
|
|
if (Gbl_WarningLevel < Level)
|
|
{
|
|
return;
|
|
}
|
|
break;
|
|
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|
default:
|
|
break;
|
|
}
|
|
|
|
if (FieldObject)
|
|
{
|
|
AslCommonError (Level, MessageId,
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|
FieldObject->Line,
|
|
FieldObject->Line,
|
|
FieldObject->ByteOffset,
|
|
FieldObject->Column,
|
|
Gbl_Files[ASL_FILE_INPUT].Filename, ExtraMessage);
|
|
}
|
|
else
|
|
{
|
|
AslCommonError (Level, MessageId, 0,
|
|
0, 0, 0, 0, ExtraMessage);
|
|
}
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtNameError
|
|
*
|
|
* PARAMETERS: Level - Seriousness (Warning/error, etc.)
|
|
* MessageId - Index into global message buffer
|
|
* Op - Parse node where error happened
|
|
* ExtraMessage - additional error message
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Error interface for named objects
|
|
*
|
|
*****************************************************************************/
|
|
|
|
void
|
|
DtNameError (
|
|
UINT8 Level,
|
|
UINT8 MessageId,
|
|
DT_FIELD *FieldObject,
|
|
char *ExtraMessage)
|
|
{
|
|
|
|
switch (Level)
|
|
{
|
|
case ASL_WARNING2:
|
|
case ASL_WARNING3:
|
|
if (Gbl_WarningLevel < Level)
|
|
{
|
|
return;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (FieldObject)
|
|
{
|
|
AslCommonError (Level, MessageId,
|
|
FieldObject->Line,
|
|
FieldObject->Line,
|
|
FieldObject->ByteOffset,
|
|
FieldObject->NameColumn,
|
|
Gbl_Files[ASL_FILE_INPUT].Filename, ExtraMessage);
|
|
}
|
|
else
|
|
{
|
|
AslCommonError (Level, MessageId, 0,
|
|
0, 0, 0, 0, ExtraMessage);
|
|
}
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: DtFatal
|
|
*
|
|
* PARAMETERS: None
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Dump the error log and abort the compiler. Used for serious
|
|
* compile or I/O errors
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
DtFatal (
|
|
UINT8 MessageId,
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|
DT_FIELD *FieldObject,
|
|
char *ExtraMessage)
|
|
{
|
|
|
|
DtError (ASL_ERROR, MessageId, FieldObject, ExtraMessage);
|
|
|
|
CmCleanupAndExit ();
|
|
exit (1);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtStrtoul64
|
|
*
|
|
* PARAMETERS: String - Null terminated string
|
|
* ReturnInteger - Where the converted integer is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Simple conversion of a string hex integer constant to unsigned
|
|
* value. Assumes no leading "0x" for the constant.
|
|
*
|
|
* Portability note: The reason this function exists is because a 64-bit
|
|
* sscanf is not available in all environments.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
DtStrtoul64 (
|
|
char *String,
|
|
UINT64 *ReturnInteger)
|
|
{
|
|
char *ThisChar = String;
|
|
UINT32 ThisDigit;
|
|
UINT64 ReturnValue = 0;
|
|
int DigitCount = 0;
|
|
|
|
|
|
/* Skip over any white space in the buffer */
|
|
|
|
while ((*ThisChar == ' ') || (*ThisChar == '\t'))
|
|
{
|
|
ThisChar++;
|
|
}
|
|
|
|
/* Skip leading zeros */
|
|
|
|
while ((*ThisChar) == '0')
|
|
{
|
|
ThisChar++;
|
|
}
|
|
|
|
/* Convert character-by-character */
|
|
|
|
while (*ThisChar)
|
|
{
|
|
if (ACPI_IS_DIGIT (*ThisChar))
|
|
{
|
|
/* Convert ASCII 0-9 to Decimal value */
|
|
|
|
ThisDigit = ((UINT8) *ThisChar) - '0';
|
|
}
|
|
else /* Letter */
|
|
{
|
|
ThisDigit = (UINT32) ACPI_TOUPPER (*ThisChar);
|
|
if (!ACPI_IS_XDIGIT ((char) ThisDigit))
|
|
{
|
|
/* Not A-F */
|
|
|
|
return (AE_BAD_CHARACTER);
|
|
}
|
|
|
|
/* Convert ASCII Hex char (A-F) to value */
|
|
|
|
ThisDigit = (ThisDigit - 'A') + 10;
|
|
}
|
|
|
|
/* Insert the 4-bit hex digit */
|
|
|
|
ReturnValue <<= 4;
|
|
ReturnValue += ThisDigit;
|
|
|
|
ThisChar++;
|
|
DigitCount++;
|
|
if (DigitCount > 16)
|
|
{
|
|
/* Value is too large (> 64 bits/8 bytes/16 hex digits) */
|
|
|
|
return (AE_LIMIT);
|
|
}
|
|
}
|
|
|
|
*ReturnInteger = ReturnValue;
|
|
return (AE_OK);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtGetFileSize
|
|
*
|
|
* PARAMETERS: Handle - Open file handler
|
|
*
|
|
* RETURN: Current file size
|
|
*
|
|
* DESCRIPTION: Get the current size of a file. Seek to the EOF and get the
|
|
* offset. Seek back to the original location.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
UINT32
|
|
DtGetFileSize (
|
|
FILE *Handle)
|
|
{
|
|
int CurrentOffset;
|
|
int LastOffset;
|
|
|
|
|
|
CurrentOffset = ftell (Handle);
|
|
fseek (Handle, 0, SEEK_END);
|
|
LastOffset = ftell (Handle);
|
|
fseek (Handle, CurrentOffset, SEEK_SET);
|
|
|
|
return ((UINT32) LastOffset);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtGetFieldValue
|
|
*
|
|
* PARAMETERS: Field - Current field list pointer
|
|
* Name - Field name
|
|
*
|
|
* RETURN: Field value
|
|
*
|
|
* DESCRIPTION: Get field value
|
|
*
|
|
*****************************************************************************/
|
|
|
|
char *
|
|
DtGetFieldValue (
|
|
DT_FIELD *Field,
|
|
char *Name)
|
|
{
|
|
|
|
/* Search the field list for the name */
|
|
|
|
while (Field)
|
|
{
|
|
if (!ACPI_STRCMP (Name, Field->Name))
|
|
{
|
|
return (Field->Value);
|
|
}
|
|
|
|
Field = Field->Next;
|
|
}
|
|
|
|
return (NULL);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtGetFieldType
|
|
*
|
|
* PARAMETERS: Info - Data table info
|
|
*
|
|
* RETURN: Field type
|
|
*
|
|
* DESCRIPTION: Get field type
|
|
*
|
|
*****************************************************************************/
|
|
|
|
UINT8
|
|
DtGetFieldType (
|
|
ACPI_DMTABLE_INFO *Info)
|
|
{
|
|
UINT8 Type;
|
|
|
|
|
|
/* DT_FLAG means that this is the start of a block of flag bits */
|
|
/* TBD - we can make these a separate opcode later */
|
|
|
|
if (Info->Flags & DT_FLAG)
|
|
{
|
|
return (DT_FIELD_TYPE_FLAGS_INTEGER);
|
|
}
|
|
|
|
/* Type is based upon the opcode for this field in the info table */
|
|
|
|
switch (Info->Opcode)
|
|
{
|
|
case ACPI_DMT_FLAG0:
|
|
case ACPI_DMT_FLAG1:
|
|
case ACPI_DMT_FLAG2:
|
|
case ACPI_DMT_FLAG3:
|
|
case ACPI_DMT_FLAG4:
|
|
case ACPI_DMT_FLAG5:
|
|
case ACPI_DMT_FLAG6:
|
|
case ACPI_DMT_FLAG7:
|
|
case ACPI_DMT_FLAGS0:
|
|
case ACPI_DMT_FLAGS2:
|
|
Type = DT_FIELD_TYPE_FLAG;
|
|
break;
|
|
|
|
case ACPI_DMT_NAME4:
|
|
case ACPI_DMT_SIG:
|
|
case ACPI_DMT_NAME6:
|
|
case ACPI_DMT_NAME8:
|
|
case ACPI_DMT_STRING:
|
|
Type = DT_FIELD_TYPE_STRING;
|
|
break;
|
|
|
|
case ACPI_DMT_BUFFER:
|
|
case ACPI_DMT_BUF16:
|
|
Type = DT_FIELD_TYPE_BUFFER;
|
|
break;
|
|
|
|
case ACPI_DMT_PCI_PATH:
|
|
Type = DT_FIELD_TYPE_PCI_PATH;
|
|
break;
|
|
|
|
case ACPI_DMT_GAS:
|
|
case ACPI_DMT_HESTNTFY:
|
|
Type = DT_FIELD_TYPE_INLINE_SUBTABLE;
|
|
break;
|
|
|
|
default:
|
|
Type = DT_FIELD_TYPE_INTEGER;
|
|
break;
|
|
}
|
|
|
|
return (Type);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtGetBufferLength
|
|
*
|
|
* PARAMETERS: Buffer - List of integers,
|
|
* for example "10 3A 4F 2E"
|
|
*
|
|
* RETURN: Count of integer
|
|
*
|
|
* DESCRIPTION: Get length of bytes needed to store the integers
|
|
*
|
|
*****************************************************************************/
|
|
|
|
UINT32
|
|
DtGetBufferLength (
|
|
char *Buffer)
|
|
{
|
|
UINT32 ByteLength = 0;
|
|
|
|
|
|
while (*Buffer)
|
|
{
|
|
if (*Buffer == ' ')
|
|
{
|
|
ByteLength++;
|
|
|
|
while (*Buffer == ' ')
|
|
{
|
|
Buffer++;
|
|
}
|
|
}
|
|
|
|
Buffer++;
|
|
}
|
|
|
|
return (++ByteLength);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtGetFieldLength
|
|
*
|
|
* PARAMETERS: Field - Current field list pointer
|
|
* Info - Data table info
|
|
*
|
|
* RETURN: Field length
|
|
*
|
|
* DESCRIPTION: Get length of bytes needed to compile the field
|
|
*
|
|
*****************************************************************************/
|
|
|
|
UINT32
|
|
DtGetFieldLength (
|
|
DT_FIELD *Field,
|
|
ACPI_DMTABLE_INFO *Info)
|
|
{
|
|
UINT32 ByteLength = 0;
|
|
char *Value;
|
|
|
|
|
|
/* Length is based upon the opcode for this field in the info table */
|
|
|
|
switch (Info->Opcode)
|
|
{
|
|
case ACPI_DMT_FLAG0:
|
|
case ACPI_DMT_FLAG1:
|
|
case ACPI_DMT_FLAG2:
|
|
case ACPI_DMT_FLAG3:
|
|
case ACPI_DMT_FLAG4:
|
|
case ACPI_DMT_FLAG5:
|
|
case ACPI_DMT_FLAG6:
|
|
case ACPI_DMT_FLAG7:
|
|
case ACPI_DMT_FLAGS0:
|
|
case ACPI_DMT_FLAGS2:
|
|
ByteLength = 0;
|
|
break;
|
|
|
|
case ACPI_DMT_UINT8:
|
|
case ACPI_DMT_CHKSUM:
|
|
case ACPI_DMT_SPACEID:
|
|
case ACPI_DMT_MADT:
|
|
case ACPI_DMT_SRAT:
|
|
case ACPI_DMT_ASF:
|
|
case ACPI_DMT_HESTNTYP:
|
|
case ACPI_DMT_FADTPM:
|
|
case ACPI_DMT_IVRS:
|
|
ByteLength = 1;
|
|
break;
|
|
|
|
case ACPI_DMT_UINT16:
|
|
case ACPI_DMT_DMAR:
|
|
case ACPI_DMT_HEST:
|
|
case ACPI_DMT_PCI_PATH:
|
|
ByteLength = 2;
|
|
break;
|
|
|
|
case ACPI_DMT_UINT24:
|
|
ByteLength = 3;
|
|
break;
|
|
|
|
case ACPI_DMT_UINT32:
|
|
case ACPI_DMT_NAME4:
|
|
case ACPI_DMT_SIG:
|
|
ByteLength = 4;
|
|
break;
|
|
|
|
case ACPI_DMT_NAME6:
|
|
ByteLength = 6;
|
|
break;
|
|
|
|
case ACPI_DMT_UINT56:
|
|
ByteLength = 7;
|
|
break;
|
|
|
|
case ACPI_DMT_UINT64:
|
|
case ACPI_DMT_NAME8:
|
|
ByteLength = 8;
|
|
break;
|
|
|
|
case ACPI_DMT_STRING:
|
|
Value = DtGetFieldValue (Field, Info->Name);
|
|
|
|
/* TBD: error if Value is NULL? (as below?) */
|
|
|
|
ByteLength = ACPI_STRLEN (Value) + 1;
|
|
break;
|
|
|
|
case ACPI_DMT_GAS:
|
|
ByteLength = sizeof (ACPI_GENERIC_ADDRESS);
|
|
break;
|
|
|
|
case ACPI_DMT_HESTNTFY:
|
|
ByteLength = sizeof (ACPI_HEST_NOTIFY);
|
|
break;
|
|
|
|
case ACPI_DMT_BUFFER:
|
|
Value = DtGetFieldValue (Field, Info->Name);
|
|
if (Value)
|
|
{
|
|
ByteLength = DtGetBufferLength (Value);
|
|
}
|
|
else
|
|
{ /* At this point, this is a fatal error */
|
|
|
|
sprintf (MsgBuffer, "Expected \"%s\"", Info->Name);
|
|
DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, MsgBuffer);
|
|
}
|
|
break;
|
|
|
|
case ACPI_DMT_BUF16:
|
|
ByteLength = 16;
|
|
break;
|
|
|
|
default:
|
|
DtFatal (ASL_MSG_COMPILER_INTERNAL, Field, "Invalid table opcode");
|
|
break;
|
|
}
|
|
|
|
return (ByteLength);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtSum
|
|
*
|
|
* PARAMETERS: DT_WALK_CALLBACK:
|
|
* Subtable - Subtable
|
|
* Context - Unused
|
|
* ReturnValue - Store the checksum of subtable
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Get the checksum of subtable
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static void
|
|
DtSum (
|
|
DT_SUBTABLE *Subtable,
|
|
void *Context,
|
|
void *ReturnValue)
|
|
{
|
|
UINT8 Checksum;
|
|
UINT8 *Sum = ReturnValue;
|
|
|
|
|
|
Checksum = AcpiTbChecksum (Subtable->Buffer, Subtable->Length);
|
|
*Sum = (UINT8) (*Sum + Checksum);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtSetTableChecksum
|
|
*
|
|
* PARAMETERS: ChecksumPointer - Where to return the checksum
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Set checksum of the whole data table into the checksum field
|
|
*
|
|
*****************************************************************************/
|
|
|
|
void
|
|
DtSetTableChecksum (
|
|
UINT8 *ChecksumPointer)
|
|
{
|
|
UINT8 Checksum = 0;
|
|
UINT8 OldSum;
|
|
|
|
|
|
DtWalkTableTree (Gbl_RootTable, DtSum, NULL, &Checksum);
|
|
|
|
OldSum = *ChecksumPointer;
|
|
Checksum = (UINT8) (Checksum - OldSum);
|
|
|
|
/* Compute the final checksum */
|
|
|
|
Checksum = (UINT8) (0 - Checksum);
|
|
*ChecksumPointer = Checksum;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtSetTableLength
|
|
*
|
|
* PARAMETERS: None
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Walk the subtables and set all the length fields
|
|
*
|
|
*****************************************************************************/
|
|
|
|
void
|
|
DtSetTableLength (
|
|
void)
|
|
{
|
|
DT_SUBTABLE *ParentTable;
|
|
DT_SUBTABLE *ChildTable;
|
|
|
|
|
|
ParentTable = Gbl_RootTable;
|
|
ChildTable = NULL;
|
|
|
|
if (!ParentTable)
|
|
{
|
|
return;
|
|
}
|
|
|
|
DtSetSubtableLength (ParentTable);
|
|
|
|
while (1)
|
|
{
|
|
ChildTable = DtGetNextSubtable (ParentTable, ChildTable);
|
|
if (ChildTable)
|
|
{
|
|
if (ChildTable->Child)
|
|
{
|
|
ParentTable = ChildTable;
|
|
ChildTable = NULL;
|
|
}
|
|
else
|
|
{
|
|
ParentTable->TotalLength += ChildTable->TotalLength;
|
|
if (ParentTable->LengthField)
|
|
{
|
|
DtSetSubtableLength (ParentTable);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ChildTable = ParentTable;
|
|
|
|
if (ChildTable == Gbl_RootTable)
|
|
{
|
|
break;
|
|
}
|
|
|
|
ParentTable = DtGetParentSubtable (ParentTable);
|
|
|
|
ParentTable->TotalLength += ChildTable->TotalLength;
|
|
if (ParentTable->LengthField)
|
|
{
|
|
DtSetSubtableLength (ParentTable);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtWalkTableTree
|
|
*
|
|
* PARAMETERS: StartTable - Subtable in the tree where walking begins
|
|
* UserFunction - Called during the walk
|
|
* Context - Passed to user function
|
|
* ReturnValue - The return value of UserFunction
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Performs a depth-first walk of the subtable tree
|
|
*
|
|
*****************************************************************************/
|
|
|
|
void
|
|
DtWalkTableTree (
|
|
DT_SUBTABLE *StartTable,
|
|
DT_WALK_CALLBACK UserFunction,
|
|
void *Context,
|
|
void *ReturnValue)
|
|
{
|
|
DT_SUBTABLE *ParentTable;
|
|
DT_SUBTABLE *ChildTable;
|
|
|
|
|
|
ParentTable = StartTable;
|
|
ChildTable = NULL;
|
|
|
|
if (!ParentTable)
|
|
{
|
|
return;
|
|
}
|
|
|
|
UserFunction (ParentTable, Context, ReturnValue);
|
|
|
|
while (1)
|
|
{
|
|
ChildTable = DtGetNextSubtable (ParentTable, ChildTable);
|
|
if (ChildTable)
|
|
{
|
|
UserFunction (ChildTable, Context, ReturnValue);
|
|
|
|
if (ChildTable->Child)
|
|
{
|
|
ParentTable = ChildTable;
|
|
ChildTable = NULL;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ChildTable = ParentTable;
|
|
if (ChildTable == Gbl_RootTable)
|
|
{
|
|
break;
|
|
}
|
|
|
|
ParentTable = DtGetParentSubtable (ParentTable);
|
|
|
|
if (ChildTable->Peer == StartTable)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtFreeFieldList
|
|
*
|
|
* PARAMETERS: None
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Free the field list
|
|
*
|
|
*****************************************************************************/
|
|
|
|
void
|
|
DtFreeFieldList (
|
|
void)
|
|
{
|
|
DT_FIELD *Field = Gbl_FieldList;
|
|
DT_FIELD *NextField;
|
|
|
|
|
|
/* Walk and free entire field list */
|
|
|
|
while (Field)
|
|
{
|
|
NextField = Field->Next; /* Save link */
|
|
|
|
if (!(Field->Flags & DT_FIELD_NOT_ALLOCATED))
|
|
{
|
|
ACPI_FREE (Field->Name);
|
|
ACPI_FREE (Field->Value);
|
|
}
|
|
|
|
ACPI_FREE (Field);
|
|
Field = NextField;
|
|
}
|
|
}
|