872 lines
21 KiB
C
872 lines
21 KiB
C
/******************************************************************************
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*
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* Module Name: dtutils.c - Utility routines for the data table compiler
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2011, Intel Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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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
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DtSum (
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DT_SUBTABLE *Subtable,
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void *Context,
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void *ReturnValue);
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/******************************************************************************
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*
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* FUNCTION: DtError
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*
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* PARAMETERS: Level - Seriousness (Warning/error, etc.)
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* MessageId - Index into global message buffer
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* Op - Parse node where error happened
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* ExtraMessage - additional error message
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*
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* RETURN: None
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*
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* DESCRIPTION: Common error interface for data table compiler
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*
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*****************************************************************************/
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void
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DtError (
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UINT8 Level,
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UINT8 MessageId,
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DT_FIELD *FieldObject,
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char *ExtraMessage)
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{
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switch (Level)
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{
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case ASL_WARNING2:
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case ASL_WARNING3:
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if (Gbl_WarningLevel < Level)
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{
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return;
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}
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break;
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default:
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break;
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}
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if (FieldObject)
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{
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AslCommonError (Level, MessageId,
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FieldObject->Line,
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FieldObject->Line,
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FieldObject->ByteOffset,
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FieldObject->Column,
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Gbl_Files[ASL_FILE_INPUT].Filename, ExtraMessage);
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}
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else
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{
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AslCommonError (Level, MessageId, 0,
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0, 0, 0, 0, ExtraMessage);
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}
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}
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/******************************************************************************
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*
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* FUNCTION: DtNameError
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*
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* PARAMETERS: Level - Seriousness (Warning/error, etc.)
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* MessageId - Index into global message buffer
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* Op - Parse node where error happened
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* ExtraMessage - additional error message
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*
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* RETURN: None
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*
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* DESCRIPTION: Error interface for named objects
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*
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*****************************************************************************/
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void
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DtNameError (
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UINT8 Level,
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UINT8 MessageId,
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DT_FIELD *FieldObject,
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char *ExtraMessage)
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{
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switch (Level)
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{
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case ASL_WARNING2:
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case ASL_WARNING3:
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if (Gbl_WarningLevel < Level)
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{
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return;
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}
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break;
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default:
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break;
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}
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if (FieldObject)
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{
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AslCommonError (Level, MessageId,
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FieldObject->Line,
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FieldObject->Line,
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FieldObject->ByteOffset,
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FieldObject->NameColumn,
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Gbl_Files[ASL_FILE_INPUT].Filename, ExtraMessage);
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}
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else
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{
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AslCommonError (Level, MessageId, 0,
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0, 0, 0, 0, ExtraMessage);
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: DtFatal
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*
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* PARAMETERS: None
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*
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* RETURN: None
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*
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* DESCRIPTION: Dump the error log and abort the compiler. Used for serious
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* compile or I/O errors
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*
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******************************************************************************/
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void
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DtFatal (
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UINT8 MessageId,
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DT_FIELD *FieldObject,
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char *ExtraMessage)
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{
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DtError (ASL_ERROR, MessageId, FieldObject, ExtraMessage);
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CmCleanupAndExit ();
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exit (1);
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}
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/******************************************************************************
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*
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* FUNCTION: DtStrtoul64
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*
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* PARAMETERS: String - Null terminated string
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* ReturnInteger - Where the converted integer is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Simple conversion of a string hex integer constant to unsigned
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* value. Assumes no leading "0x" for the constant.
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*
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* Portability note: The reason this function exists is because a 64-bit
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* sscanf is not available in all environments.
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*
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*****************************************************************************/
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ACPI_STATUS
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DtStrtoul64 (
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char *String,
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UINT64 *ReturnInteger)
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{
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char *ThisChar = String;
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UINT32 ThisDigit;
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UINT64 ReturnValue = 0;
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int DigitCount = 0;
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/* Skip over any white space in the buffer */
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while ((*ThisChar == ' ') || (*ThisChar == '\t'))
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{
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ThisChar++;
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}
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/* Skip leading zeros */
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while ((*ThisChar) == '0')
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{
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ThisChar++;
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}
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/* Convert character-by-character */
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while (*ThisChar)
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{
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if (ACPI_IS_DIGIT (*ThisChar))
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{
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/* Convert ASCII 0-9 to Decimal value */
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ThisDigit = ((UINT8) *ThisChar) - '0';
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}
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else /* Letter */
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{
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ThisDigit = (UINT32) ACPI_TOUPPER (*ThisChar);
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if (!ACPI_IS_XDIGIT ((char) ThisDigit))
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{
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/* Not A-F */
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return (AE_BAD_CHARACTER);
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}
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/* Convert ASCII Hex char (A-F) to value */
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ThisDigit = (ThisDigit - 'A') + 10;
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}
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/* Insert the 4-bit hex digit */
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ReturnValue <<= 4;
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ReturnValue += ThisDigit;
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ThisChar++;
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DigitCount++;
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if (DigitCount > 16)
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{
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/* Value is too large (> 64 bits/8 bytes/16 hex digits) */
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return (AE_LIMIT);
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}
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}
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*ReturnInteger = ReturnValue;
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return (AE_OK);
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}
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/******************************************************************************
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*
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* FUNCTION: DtGetFileSize
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*
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* PARAMETERS: Handle - Open file handler
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*
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* RETURN: Current file size
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*
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* DESCRIPTION: Get the current size of a file. Seek to the EOF and get the
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* offset. Seek back to the original location.
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*
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*****************************************************************************/
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UINT32
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DtGetFileSize (
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FILE *Handle)
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{
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int CurrentOffset;
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int LastOffset;
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CurrentOffset = ftell (Handle);
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fseek (Handle, 0, SEEK_END);
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LastOffset = ftell (Handle);
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fseek (Handle, CurrentOffset, SEEK_SET);
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return ((UINT32) LastOffset);
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}
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/******************************************************************************
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*
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* FUNCTION: DtGetFieldValue
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*
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* PARAMETERS: Field - Current field list pointer
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* Name - Field name
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*
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* RETURN: Field value
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*
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* DESCRIPTION: Get field value
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*
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*****************************************************************************/
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char *
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DtGetFieldValue (
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DT_FIELD *Field,
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char *Name)
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{
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/* Search the field list for the name */
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while (Field)
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{
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if (!ACPI_STRCMP (Name, Field->Name))
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{
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return (Field->Value);
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}
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Field = Field->Next;
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}
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return (NULL);
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}
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/******************************************************************************
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*
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* FUNCTION: DtGetFieldType
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*
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* PARAMETERS: Info - Data table info
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*
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* RETURN: Field type
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*
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* DESCRIPTION: Get field type
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*
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*****************************************************************************/
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UINT8
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DtGetFieldType (
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ACPI_DMTABLE_INFO *Info)
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{
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UINT8 Type;
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/* DT_FLAG means that this is the start of a block of flag bits */
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/* TBD - we can make these a separate opcode later */
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if (Info->Flags & DT_FLAG)
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{
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return (DT_FIELD_TYPE_FLAGS_INTEGER);
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}
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/* Type is based upon the opcode for this field in the info table */
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switch (Info->Opcode)
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{
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case ACPI_DMT_FLAG0:
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case ACPI_DMT_FLAG1:
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case ACPI_DMT_FLAG2:
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case ACPI_DMT_FLAG3:
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case ACPI_DMT_FLAG4:
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case ACPI_DMT_FLAG5:
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case ACPI_DMT_FLAG6:
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case ACPI_DMT_FLAG7:
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case ACPI_DMT_FLAGS0:
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case ACPI_DMT_FLAGS2:
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Type = DT_FIELD_TYPE_FLAG;
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break;
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case ACPI_DMT_NAME4:
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case ACPI_DMT_SIG:
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case ACPI_DMT_NAME6:
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case ACPI_DMT_NAME8:
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case ACPI_DMT_STRING:
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Type = DT_FIELD_TYPE_STRING;
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break;
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case ACPI_DMT_BUFFER:
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case ACPI_DMT_BUF7:
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case ACPI_DMT_BUF16:
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case ACPI_DMT_BUF128:
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case ACPI_DMT_PCI_PATH:
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Type = DT_FIELD_TYPE_BUFFER;
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break;
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case ACPI_DMT_GAS:
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case ACPI_DMT_HESTNTFY:
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Type = DT_FIELD_TYPE_INLINE_SUBTABLE;
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break;
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case ACPI_DMT_UNICODE:
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Type = DT_FIELD_TYPE_UNICODE;
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break;
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case ACPI_DMT_UUID:
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Type = DT_FIELD_TYPE_UUID;
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break;
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case ACPI_DMT_DEVICE_PATH:
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Type = DT_FIELD_TYPE_DEVICE_PATH;
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break;
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case ACPI_DMT_LABEL:
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Type = DT_FIELD_TYPE_LABEL;
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break;
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default:
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Type = DT_FIELD_TYPE_INTEGER;
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break;
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}
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return (Type);
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}
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/******************************************************************************
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*
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* FUNCTION: DtGetBufferLength
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*
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* PARAMETERS: Buffer - List of integers,
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* for example "10 3A 4F 2E"
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*
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* RETURN: Count of integer
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*
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* DESCRIPTION: Get length of bytes needed to store the integers
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*
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*****************************************************************************/
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UINT32
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DtGetBufferLength (
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char *Buffer)
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{
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UINT32 ByteLength = 0;
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while (*Buffer)
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{
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if (*Buffer == ' ')
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{
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ByteLength++;
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while (*Buffer == ' ')
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{
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Buffer++;
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}
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}
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Buffer++;
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}
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return (++ByteLength);
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}
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/******************************************************************************
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*
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* FUNCTION: DtGetFieldLength
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*
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* PARAMETERS: Field - Current field list pointer
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* Info - Data table info
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*
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* RETURN: Field length
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*
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* DESCRIPTION: Get length of bytes needed to compile the field
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*
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* Note: This function must remain in sync with AcpiDmDumpTable.
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*
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*****************************************************************************/
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UINT32
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DtGetFieldLength (
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DT_FIELD *Field,
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ACPI_DMTABLE_INFO *Info)
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{
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UINT32 ByteLength = 0;
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char *Value;
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/* Length is based upon the opcode for this field in the info table */
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switch (Info->Opcode)
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{
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case ACPI_DMT_FLAG0:
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case ACPI_DMT_FLAG1:
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case ACPI_DMT_FLAG2:
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case ACPI_DMT_FLAG3:
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case ACPI_DMT_FLAG4:
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case ACPI_DMT_FLAG5:
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case ACPI_DMT_FLAG6:
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case ACPI_DMT_FLAG7:
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case ACPI_DMT_FLAGS0:
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case ACPI_DMT_FLAGS2:
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case ACPI_DMT_LABEL:
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ByteLength = 0;
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break;
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case ACPI_DMT_UINT8:
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case ACPI_DMT_CHKSUM:
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case ACPI_DMT_SPACEID:
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case ACPI_DMT_ACCWIDTH:
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case ACPI_DMT_IVRS:
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case ACPI_DMT_MADT:
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case ACPI_DMT_SRAT:
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case ACPI_DMT_ASF:
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case ACPI_DMT_HESTNTYP:
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case ACPI_DMT_FADTPM:
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case ACPI_DMT_EINJACT:
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case ACPI_DMT_EINJINST:
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case ACPI_DMT_ERSTACT:
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case ACPI_DMT_ERSTINST:
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ByteLength = 1;
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break;
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case ACPI_DMT_UINT16:
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case ACPI_DMT_DMAR:
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case ACPI_DMT_HEST:
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case ACPI_DMT_PCI_PATH:
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ByteLength = 2;
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break;
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case ACPI_DMT_UINT24:
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ByteLength = 3;
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break;
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case ACPI_DMT_UINT32:
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case ACPI_DMT_NAME4:
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case ACPI_DMT_SLIC:
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case ACPI_DMT_SIG:
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ByteLength = 4;
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break;
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case ACPI_DMT_NAME6:
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ByteLength = 6;
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break;
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case ACPI_DMT_UINT56:
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case ACPI_DMT_BUF7:
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ByteLength = 7;
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break;
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case ACPI_DMT_UINT64:
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case ACPI_DMT_NAME8:
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ByteLength = 8;
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break;
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case ACPI_DMT_STRING:
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Value = DtGetFieldValue (Field, Info->Name);
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if (Value)
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{
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ByteLength = ACPI_STRLEN (Value) + 1;
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}
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else
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{ /* At this point, this is a fatal error */
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sprintf (MsgBuffer, "Expected \"%s\"", Info->Name);
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DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, MsgBuffer);
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}
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break;
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case ACPI_DMT_GAS:
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ByteLength = sizeof (ACPI_GENERIC_ADDRESS);
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break;
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case ACPI_DMT_HESTNTFY:
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ByteLength = sizeof (ACPI_HEST_NOTIFY);
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break;
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case ACPI_DMT_BUFFER:
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Value = DtGetFieldValue (Field, Info->Name);
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if (Value)
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{
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ByteLength = DtGetBufferLength (Value);
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}
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else
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{ /* At this point, this is a fatal error */
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sprintf (MsgBuffer, "Expected \"%s\"", Info->Name);
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DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, MsgBuffer);
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}
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break;
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case ACPI_DMT_BUF16:
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case ACPI_DMT_UUID:
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ByteLength = 16;
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break;
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case ACPI_DMT_BUF128:
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ByteLength = 128;
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break;
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case ACPI_DMT_UNICODE:
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Value = DtGetFieldValue (Field, Info->Name);
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/* TBD: error if Value is NULL? (as below?) */
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ByteLength = (ACPI_STRLEN (Value) + 1) * sizeof(UINT16);
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break;
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default:
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DtFatal (ASL_MSG_COMPILER_INTERNAL, Field, "Invalid table opcode");
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break;
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}
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return (ByteLength);
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}
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/******************************************************************************
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*
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* FUNCTION: DtSum
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*
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* PARAMETERS: DT_WALK_CALLBACK:
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* Subtable - Subtable
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* Context - Unused
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* ReturnValue - Store the checksum of subtable
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*
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* RETURN: Status
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*
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* DESCRIPTION: Get the checksum of subtable
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*
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*****************************************************************************/
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static void
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DtSum (
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DT_SUBTABLE *Subtable,
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void *Context,
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void *ReturnValue)
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{
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UINT8 Checksum;
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UINT8 *Sum = ReturnValue;
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Checksum = AcpiTbChecksum (Subtable->Buffer, Subtable->Length);
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*Sum = (UINT8) (*Sum + Checksum);
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}
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/******************************************************************************
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*
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* FUNCTION: DtSetTableChecksum
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*
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* PARAMETERS: ChecksumPointer - Where to return the checksum
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*
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* RETURN: None
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*
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* DESCRIPTION: Set checksum of the whole data table into the checksum field
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*
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|
*****************************************************************************/
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void
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DtSetTableChecksum (
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UINT8 *ChecksumPointer)
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{
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UINT8 Checksum = 0;
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UINT8 OldSum;
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DtWalkTableTree (Gbl_RootTable, DtSum, NULL, &Checksum);
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OldSum = *ChecksumPointer;
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Checksum = (UINT8) (Checksum - OldSum);
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/* Compute the final checksum */
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Checksum = (UINT8) (0 - Checksum);
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*ChecksumPointer = Checksum;
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}
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/******************************************************************************
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*
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* FUNCTION: DtSetTableLength
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*
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* PARAMETERS: None
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*
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* RETURN: None
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*
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* DESCRIPTION: Walk the subtables and set all the length fields
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|
*
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|
*****************************************************************************/
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void
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DtSetTableLength (
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void)
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{
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DT_SUBTABLE *ParentTable;
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DT_SUBTABLE *ChildTable;
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ParentTable = Gbl_RootTable;
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ChildTable = NULL;
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if (!ParentTable)
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{
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return;
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}
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DtSetSubtableLength (ParentTable);
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while (1)
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{
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ChildTable = DtGetNextSubtable (ParentTable, ChildTable);
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if (ChildTable)
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{
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if (ChildTable->LengthField)
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{
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DtSetSubtableLength (ChildTable);
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|
}
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if (ChildTable->Child)
|
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{
|
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ParentTable = ChildTable;
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ChildTable = NULL;
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|
}
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|
else
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|
{
|
|
ParentTable->TotalLength += ChildTable->TotalLength;
|
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if (ParentTable->LengthField)
|
|
{
|
|
DtSetSubtableLength (ParentTable);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ChildTable = ParentTable;
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|
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if (ChildTable == Gbl_RootTable)
|
|
{
|
|
break;
|
|
}
|
|
|
|
ParentTable = DtGetParentSubtable (ParentTable);
|
|
|
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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;
|
|
}
|
|
}
|