NetBSD-5.0.2/sys/dist/acpica/dbfileio.c
/*******************************************************************************
*
* Module Name: dbfileio - Debugger file I/O commands. These can't usually
* be used when running the debugger in Ring 0 (Kernel mode)
* $Revision: 1.7 $
*
******************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2008, 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 "acpi.h"
#include "acdebug.h"
#include "actables.h"
#if (defined ACPI_DEBUGGER || defined ACPI_DISASSEMBLER)
#define _COMPONENT ACPI_CA_DEBUGGER
ACPI_MODULE_NAME ("dbfileio")
/*
* NOTE: this is here for lack of a better place. It is used in all
* flavors of the debugger, need LCD file
*/
#ifdef ACPI_APPLICATION
#include <stdio.h>
FILE *AcpiGbl_DebugFile = NULL;
#endif
#ifdef ACPI_DEBUGGER
/* Local prototypes */
#ifdef ACPI_APPLICATION
static ACPI_STATUS
AcpiDbCheckTextModeCorruption (
UINT8 *Table,
UINT32 TableLength,
UINT32 FileLength);
static ACPI_STATUS
AeLocalLoadTable (
ACPI_TABLE_HEADER *TablePtr);
#endif
/*******************************************************************************
*
* FUNCTION: AcpiDbCloseDebugFile
*
* PARAMETERS: None
*
* RETURN: None
*
* DESCRIPTION: If open, close the current debug output file
*
******************************************************************************/
void
AcpiDbCloseDebugFile (
void)
{
#ifdef ACPI_APPLICATION
if (AcpiGbl_DebugFile)
{
fclose (AcpiGbl_DebugFile);
AcpiGbl_DebugFile = NULL;
AcpiGbl_DbOutputToFile = FALSE;
AcpiOsPrintf ("Debug output file %s closed\n", AcpiGbl_DbDebugFilename);
}
#endif
}
/*******************************************************************************
*
* FUNCTION: AcpiDbOpenDebugFile
*
* PARAMETERS: Name - Filename to open
*
* RETURN: None
*
* DESCRIPTION: Open a file where debug output will be directed.
*
******************************************************************************/
void
AcpiDbOpenDebugFile (
char *Name)
{
#ifdef ACPI_APPLICATION
AcpiDbCloseDebugFile ();
AcpiGbl_DebugFile = fopen (Name, "w+");
if (AcpiGbl_DebugFile)
{
AcpiOsPrintf ("Debug output file %s opened\n", Name);
ACPI_STRCPY (AcpiGbl_DbDebugFilename, Name);
AcpiGbl_DbOutputToFile = TRUE;
}
else
{
AcpiOsPrintf ("Could not open debug file %s\n", Name);
}
#endif
}
#endif
#ifdef ACPI_APPLICATION
/*******************************************************************************
*
* FUNCTION: AcpiDbCheckTextModeCorruption
*
* PARAMETERS: Table - Table buffer
* TableLength - Length of table from the table header
* FileLength - Length of the file that contains the table
*
* RETURN: Status
*
* DESCRIPTION: Check table for text mode file corruption where all linefeed
* characters (LF) have been replaced by carriage return linefeed
* pairs (CR/LF).
*
******************************************************************************/
static ACPI_STATUS
AcpiDbCheckTextModeCorruption (
UINT8 *Table,
UINT32 TableLength,
UINT32 FileLength)
{
UINT32 i;
UINT32 Pairs = 0;
if (TableLength != FileLength)
{
ACPI_WARNING ((AE_INFO,
"File length (0x%X) is not the same as the table length (0x%X)",
FileLength, TableLength));
}
/* Scan entire table to determine if each LF has been prefixed with a CR */
for (i = 1; i < FileLength; i++)
{
if (Table[i] == 0x0A)
{
if (Table[i - 1] != 0x0D)
{
/* The LF does not have a preceeding CR, table not corrupted */
return (AE_OK);
}
else
{
/* Found a CR/LF pair */
Pairs++;
}
i++;
}
}
if (!Pairs)
{
return (AE_OK);
}
/*
* Entire table scanned, each CR is part of a CR/LF pair --
* meaning that the table was treated as a text file somewhere.
*
* NOTE: We can't "fix" the table, because any existing CR/LF pairs in the
* original table are left untouched by the text conversion process --
* meaning that we cannot simply replace CR/LF pairs with LFs.
*/
AcpiOsPrintf ("Table has been corrupted by text mode conversion\n");
AcpiOsPrintf ("All LFs (%d) were changed to CR/LF pairs\n", Pairs);
AcpiOsPrintf ("Table cannot be repaired!\n");
return (AE_BAD_VALUE);
}
/*******************************************************************************
*
* FUNCTION: AcpiDbReadTable
*
* PARAMETERS: fp - File that contains table
* Table - Return value, buffer with table
* TableLength - Return value, length of table
*
* RETURN: Status
*
* DESCRIPTION: Load the DSDT from the file pointer
*
******************************************************************************/
static ACPI_STATUS
AcpiDbReadTable (
FILE *fp,
ACPI_TABLE_HEADER **Table,
UINT32 *TableLength)
{
ACPI_TABLE_HEADER TableHeader;
UINT32 Actual;
ACPI_STATUS Status;
UINT32 FileSize;
BOOLEAN StandardHeader = TRUE;
/* Get the file size */
fseek (fp, 0, SEEK_END);
FileSize = (UINT32) ftell (fp);
fseek (fp, 0, SEEK_SET);
if (FileSize < 4)
{
return (AE_BAD_HEADER);
}
/* Read the signature */
if (fread (&TableHeader, 1, 4, fp) != 4)
{
AcpiOsPrintf ("Could not read the table signature\n");
return (AE_BAD_HEADER);
}
fseek (fp, 0, SEEK_SET);
/* The RSDT and FACS tables do not have standard ACPI headers */
if (ACPI_COMPARE_NAME (TableHeader.Signature, "RSD ") ||
ACPI_COMPARE_NAME (TableHeader.Signature, "FACS"))
{
*TableLength = FileSize;
StandardHeader = FALSE;
}
else
{
/* Read the table header */
if (fread (&TableHeader, 1, sizeof (TableHeader), fp) !=
sizeof (ACPI_TABLE_HEADER))
{
AcpiOsPrintf ("Could not read the table header\n");
return (AE_BAD_HEADER);
}
#if 0
/* Validate the table header/length */
Status = AcpiTbValidateTableHeader (&TableHeader);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("Table header is invalid!\n");
return (Status);
}
#endif
/* File size must be at least as long as the Header-specified length */
if (TableHeader.Length > FileSize)
{
AcpiOsPrintf (
"TableHeader length [0x%X] greater than the input file size [0x%X]\n",
TableHeader.Length, FileSize);
return (AE_BAD_HEADER);
}
#ifdef ACPI_OBSOLETE_CODE
/* We only support a limited number of table types */
if (ACPI_STRNCMP ((char *) TableHeader.Signature, DSDT_SIG, 4) &&
ACPI_STRNCMP ((char *) TableHeader.Signature, PSDT_SIG, 4) &&
ACPI_STRNCMP ((char *) TableHeader.Signature, SSDT_SIG, 4))
{
AcpiOsPrintf ("Table signature [%4.4s] is invalid or not supported\n",
(char *) TableHeader.Signature);
ACPI_DUMP_BUFFER (&TableHeader, sizeof (ACPI_TABLE_HEADER));
return (AE_ERROR);
}
#endif
*TableLength = TableHeader.Length;
}
/* Allocate a buffer for the table */
*Table = AcpiOsAllocate ((size_t) FileSize);
if (!*Table)
{
AcpiOsPrintf (
"Could not allocate memory for ACPI table %4.4s (size=0x%X)\n",
TableHeader.Signature, *TableLength);
return (AE_NO_MEMORY);
}
/* Get the rest of the table */
fseek (fp, 0, SEEK_SET);
Actual = fread (*Table, 1, (size_t) FileSize, fp);
if (Actual == FileSize)
{
if (StandardHeader)
{
/* Now validate the checksum */
Status = AcpiTbChecksum ((void *) *Table,
ACPI_CAST_PTR (ACPI_TABLE_HEADER, *Table)->Length);
if (Status == AE_BAD_CHECKSUM)
{
Status = AcpiDbCheckTextModeCorruption ((UINT8 *) *Table,
FileSize, (*Table)->Length);
return (Status);
}
}
return (AE_OK);
}
if (Actual > 0)
{
AcpiOsPrintf ("Warning - reading table, asked for %X got %X\n",
FileSize, Actual);
return (AE_OK);
}
AcpiOsPrintf ("Error - could not read the table file\n");
AcpiOsFree (*Table);
*Table = NULL;
*TableLength = 0;
return (AE_ERROR);
}
/*******************************************************************************
*
* FUNCTION: AeLocalLoadTable
*
* PARAMETERS: Table - pointer to a buffer containing the entire
* table to be loaded
*
* RETURN: Status
*
* DESCRIPTION: This function is called to load a table from the caller's
* buffer. The buffer must contain an entire ACPI Table including
* a valid header. The header fields will be verified, and if it
* is determined that the table is invalid, the call will fail.
*
******************************************************************************/
static ACPI_STATUS
AeLocalLoadTable (
ACPI_TABLE_HEADER *Table)
{
ACPI_STATUS Status = AE_OK;
/* ACPI_TABLE_DESC TableInfo; */
ACPI_FUNCTION_TRACE (AeLocalLoadTable);
#if 0
if (!Table)
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
TableInfo.Pointer = Table;
Status = AcpiTbRecognizeTable (&TableInfo, ACPI_TABLE_ALL);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/* Install the new table into the local data structures */
Status = AcpiTbInstallTable (&TableInfo);
if (ACPI_FAILURE (Status))
{
if (Status == AE_ALREADY_EXISTS)
{
/* Table already exists, no error */
Status = AE_OK;
}
/* Free table allocated by AcpiTbGetTable */
AcpiTbDeleteSingleTable (&TableInfo);
return_ACPI_STATUS (Status);
}
#if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY))
Status = AcpiNsLoadTable (TableInfo.InstalledDesc, AcpiGbl_RootNode);
if (ACPI_FAILURE (Status))
{
/* Uninstall table and free the buffer */
AcpiTbDeleteTablesByType (ACPI_TABLE_ID_DSDT);
return_ACPI_STATUS (Status);
}
#endif
#endif
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiDbReadTableFromFile
*
* PARAMETERS: Filename - File where table is located
* Table - Where a pointer to the table is returned
*
* RETURN: Status
*
* DESCRIPTION: Get an ACPI table from a file
*
******************************************************************************/
ACPI_STATUS
AcpiDbReadTableFromFile (
char *Filename,
ACPI_TABLE_HEADER **Table)
{
FILE *fp;
UINT32 TableLength;
ACPI_STATUS Status;
/* Open the file */
fp = fopen (Filename, "rb");
if (!fp)
{
AcpiOsPrintf ("Could not open input file %s\n", Filename);
return (AE_ERROR);
}
/* Get the entire file */
fprintf (stderr, "Loading Acpi table from file %s\n", Filename);
Status = AcpiDbReadTable (fp, Table, &TableLength);
fclose(fp);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("Could not get table from the file\n");
return (Status);
}
return (AE_OK);
}
#endif
/*******************************************************************************
*
* FUNCTION: AcpiDbGetTableFromFile
*
* PARAMETERS: Filename - File where table is located
* ReturnTable - Where a pointer to the table is returned
*
* RETURN: Status
*
* DESCRIPTION: Load an ACPI table from a file
*
******************************************************************************/
ACPI_STATUS
AcpiDbGetTableFromFile (
char *Filename,
ACPI_TABLE_HEADER **ReturnTable)
{
#ifdef ACPI_APPLICATION
ACPI_STATUS Status;
ACPI_TABLE_HEADER *Table;
BOOLEAN IsAmlTable = TRUE;
Status = AcpiDbReadTableFromFile (Filename, &Table);
if (ACPI_FAILURE (Status))
{
return (Status);
}
#ifdef ACPI_DATA_TABLE_DISASSEMBLY
IsAmlTable = AcpiUtIsAmlTable (Table);
#endif
if (IsAmlTable)
{
/* Attempt to recognize and install the table */
Status = AeLocalLoadTable (Table);
if (ACPI_FAILURE (Status))
{
if (Status == AE_ALREADY_EXISTS)
{
AcpiOsPrintf ("Table %4.4s is already installed\n",
Table->Signature);
}
else
{
AcpiOsPrintf ("Could not install table, %s\n",
AcpiFormatException (Status));
}
return (Status);
}
fprintf (stderr,
"Acpi table [%4.4s] successfully installed and loaded\n",
Table->Signature);
}
AcpiGbl_AcpiHardwarePresent = FALSE;
if (ReturnTable)
{
*ReturnTable = Table;
}
#endif /* ACPI_APPLICATION */
return (AE_OK);
}
#endif /* ACPI_DEBUGGER */