/******************************************************************************
*
* Module Name: dtio.c - File I/O support for data table compiler
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
* All rights reserved.
*
* 2. License
*
* 2.1. This is your license from Intel Corp. under its intellectual property
* rights. You may have additional license terms from the party that provided
* you this software, covering your right to use that party's intellectual
* property rights.
*
* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
* copy of the source code appearing in this file ("Covered Code") an
* irrevocable, perpetual, worldwide license under Intel's copyrights in the
* base code distributed originally by Intel ("Original Intel Code") to copy,
* make derivatives, distribute, use and display any portion of the Covered
* Code in any form, with the right to sublicense such rights; and
*
* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
* license (with the right to sublicense), under only those claims of Intel
* patents that are infringed by the Original Intel Code, to make, use, sell,
* offer to sell, and import the Covered Code and derivative works thereof
* solely to the minimum extent necessary to exercise the above copyright
* license, and in no event shall the patent license extend to any additions
* to or modifications of the Original Intel Code. No other license or right
* is granted directly or by implication, estoppel or otherwise;
*
* The above copyright and patent license is granted only if the following
* conditions are met:
*
* 3. Conditions
*
* 3.1. Redistribution of Source with Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification with rights to further distribute source must include
* the above Copyright Notice, the above License, this list of Conditions,
* and the following Disclaimer and Export Compliance provision. In addition,
* Licensee must cause all Covered Code to which Licensee contributes to
* contain a file documenting the changes Licensee made to create that Covered
* Code and the date of any change. Licensee must include in that file the
* documentation of any changes made by any predecessor Licensee. Licensee
* must include a prominent statement that the modification is derived,
* directly or indirectly, from Original Intel Code.
*
* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification without rights to further distribute source must
* include the following Disclaimer and Export Compliance provision in the
* documentation and/or other materials provided with distribution. In
* addition, Licensee may not authorize further sublicense of source of any
* portion of the Covered Code, and must include terms to the effect that the
* license from Licensee to its licensee is limited to the intellectual
* property embodied in the software Licensee provides to its licensee, and
* not to intellectual property embodied in modifications its licensee may
* make.
*
* 3.3. Redistribution of Executable. Redistribution in executable form of any
* substantial portion of the Covered Code or modification must reproduce the
* above Copyright Notice, and the following Disclaimer and Export Compliance
* provision in the documentation and/or other materials provided with the
* distribution.
*
* 3.4. Intel retains all right, title, and interest in and to the Original
* Intel Code.
*
* 3.5. Neither the name Intel nor any other trademark owned or controlled by
* Intel shall be used in advertising or otherwise to promote the sale, use or
* other dealings in products derived from or relating to the Covered Code
* without prior written authorization from Intel.
*
* 4. Disclaimer and Export Compliance
*
* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
* PARTICULAR PURPOSE.
*
* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
* LIMITED REMEDY.
*
* 4.3. Licensee shall not export, either directly or indirectly, any of this
* software or system incorporating such software without first obtaining any
* required license or other approval from the U. S. Department of Commerce or
* any other agency or department of the United States Government. In the
* event Licensee exports any such software from the United States or
* re-exports any such software from a foreign destination, Licensee shall
* ensure that the distribution and export/re-export of the software is in
* compliance with all laws, regulations, orders, or other restrictions of the
* U.S. Export Administration Regulations. Licensee agrees that neither it nor
* any of its subsidiaries will export/re-export any technical data, process,
* software, or service, directly or indirectly, to any country for which the
* United States government or any agency thereof requires an export license,
* other governmental approval, or letter of assurance, without first obtaining
* such license, approval or letter.
*
*****************************************************************************/
#define __DTIO_C__
#include "aslcompiler.h"
#include "dtcompiler.h"
#define _COMPONENT DT_COMPILER
ACPI_MODULE_NAME ("dtio")
/******************************************************************************
*
* FUNCTION: DtIsComment
*
* PARAMETERS: Line - Current source code line
*
* RETURN: TRUE if comment, FALSE otherwise
*
* DESCRIPTION: Detect a comment in the source module
*
*****************************************************************************/
/* TBD: Temporary: very simple code to detect comments */
static int
DtIsComment(
char *Line)
{
if (!ACPI_STRNCMP (Line, "/*", 2) ||
!ACPI_STRNCMP (Line, " *", 2))
{
return 1;
}
return 0;
}
/******************************************************************************
*
* FUNCTION: DtTrim
*
* PARAMETERS: String - Current source code line to trim
*
* RETURN: Trimmed line. Must be freed by caller.
*
* DESCRIPTION: Trim left and right spaces
*
*****************************************************************************/
static char *
DtTrim (
char *String)
{
char *Start;
char *End;
char *ReturnString;
ACPI_SIZE Length;
/* Skip lines that start with a space */
if (!ACPI_STRCMP (String, " "))
{
ReturnString = UtLocalCalloc (1);
return (ReturnString);
}
/* Setup pointers to start and end of input string */
Start = String;
End = String + ACPI_STRLEN (String) - 1;
/* Find first non-whitespace character */
while ((Start <= End) && ((*Start == ' ') || (*Start == '\t')))
{
Start++;
}
/* Find last non-space character */
while (End >= Start)
{
if (*End == '\r' || *End == '\n')
{
End--;
continue;
}
if (*End != ' ')
{
break;
}
End--;
}
/* Remove any quotes around the string */
if (*Start == '\"')
{
Start++;
}
if (*End == '\"')
{
End--;
}
/* Create the trimmed return string */
Length = ACPI_PTR_DIFF (End, Start) + 1;
ReturnString = UtLocalCalloc (Length + 1);
if (ACPI_STRLEN (Start))
{
ACPI_STRNCPY (ReturnString, Start, Length);
}
ReturnString[Length] = 0;
return (ReturnString);
}
/******************************************************************************
*
* FUNCTION: DtLinkField
*
* PARAMETERS: Field - New field object to link
*
* RETURN: None
*
* DESCRIPTION: Link one field name and value to the list
*
*****************************************************************************/
static void
DtLinkField (
DT_FIELD *Field)
{
DT_FIELD *Prev;
DT_FIELD *Next;
Prev = Next = Gbl_FieldList;
while (Next)
{
Prev = Next;
Next = Next->Next;
}
if (Prev)
{
Prev->Next = Field;
}
else
{
Gbl_FieldList = Field;
}
}
/******************************************************************************
*
* FUNCTION: DtParseLine
*
* PARAMETERS: LineBuffer - Current source code line
* Line - Current line number in the source
* Offset - Current byte offset of the line
*
* RETURN: None
*
* DESCRIPTION: Parse one source line
*
*****************************************************************************/
static void
DtParseLine (
char *LineBuffer,
UINT32 Line,
UINT32 Offset)
{
char *Start;
char *End;
char *TmpName;
char *TmpValue;
char *Name;
char *Value;
char *Colon;
UINT32 Length;
DT_FIELD *Field;
UINT32 Column;
UINT32 NameColumn;
if (!LineBuffer || DtIsComment (LineBuffer))
{
return;
}
Colon
= strchr (LineBuffer
, ':'); if (!Colon || *(Colon - 1) != ' ')
{
return;
}
Start = LineBuffer;
End = Colon;
while (Start < Colon)
{
if (*Start == ' ')
{
Start++;
continue;
}
/* Found left bracket, go to the right bracket */
if (*Start == '[')
{
while (Start < Colon && *Start != ']')
{
Start++;
}
if (Start == Colon)
{
MYDEBUG ("ERROR: right bracket reaches colon position\n");
break;
}
Start++;
continue;
}
break;
}
/*
* There are two column values. One for the field name,
* and one for the field value.
*/
Column = ACPI_PTR_DIFF (Colon, LineBuffer) + 3;
NameColumn = ACPI_PTR_DIFF (Start, LineBuffer) + 1;
Length = ACPI_PTR_DIFF (End, Start);
TmpName = UtLocalCalloc (Length + 1);
ACPI_STRNCPY (TmpName, Start, Length);
Name = DtTrim (TmpName);
ACPI_FREE (TmpName);
Start = End = (Colon + 1);
while (*End)
{
/* Found left quotation, go to the right quotation and break */
if (*End == '"')
{
End++;
while (*End && *End != '"')
{
End++;
}
End++;
break;
}
if (*End == '(' ||
*End == '<' ||
*End == '/')
{
break;
}
End++;
}
Length = ACPI_PTR_DIFF (End, Start);
TmpValue = UtLocalCalloc (Length + 1);
ACPI_STRNCPY (TmpValue, Start, Length);
Value = DtTrim (TmpValue);
ACPI_FREE (TmpValue);
if (Name && Value)
{
Field = UtLocalCalloc (sizeof (DT_FIELD));
Field->Name = Name;
Field->Value = Value;
Field->Line = Line;
Field->ByteOffset = Offset;
Field->NameColumn = NameColumn;
Field->Column = Column;
DtLinkField (Field);
}
}
/******************************************************************************
*
* FUNCTION: DtScanFile
*
* PARAMETERS: Handle - Open file handle for the source file
*
* RETURN: Pointer to start of the constructed parse tree.
*
* DESCRIPTION: Scan source file, link all field name and value
* to the global parse tree: Gbl_FieldList
*
*****************************************************************************/
DT_FIELD *
DtScanFile (
FILE *Handle)
{
UINT32 Line = 0;
UINT32 Offset = 0;
/* Get the file size */
Gbl_InputByteCount = DtGetFileSize (Handle);
/* Scan line-by-line */
while (fgets (Gbl_CurrentLineBuffer
, ASL_LINE_BUFFER_SIZE
, Handle
)) {
Line++;
Gbl_CurrentLineNumber++;
DtParseLine (Gbl_CurrentLineBuffer, Line, Offset);
Offset
= (UINT32
) ftell (Handle
); }
return (Gbl_FieldList);
}
/*
* Output functions
*/
/******************************************************************************
*
* FUNCTION: DtWriteBinary
*
* PARAMETERS: DT_WALK_CALLBACK
*
* RETURN: Status
*
* DESCRIPTION: Write one subtable of a binary ACPI table
*
*****************************************************************************/
static void
DtWriteBinary (
DT_SUBTABLE *Subtable,
void *Context,
void *ReturnValue)
{
FlWriteFile (ASL_FILE_AML_OUTPUT, Subtable->Buffer, Subtable->Length);
}
/******************************************************************************
*
* FUNCTION: DtOutputBinary
*
* PARAMETERS:
*
* RETURN: Status
*
* DESCRIPTION: Write entire binary ACPI table (result of compilation)
*
*****************************************************************************/
void
DtOutputBinary (
DT_SUBTABLE *RootTable)
{
if (!RootTable)
{
return;
}
/* Walk the entire parse tree, emitting the binary data */
DtWalkTableTree (RootTable, DtWriteBinary, NULL, NULL);
Gbl_TableLength = DtGetFileSize (Gbl_Files[ASL_FILE_AML_OUTPUT].Handle);
}