/******************************************************************************
*
* Module Name: a16find - 16-bit (real mode) routines to find ACPI
* tables in memory
* $Revision: 26 $
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2003, 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "acpi.h"
#include "amlcode.h"
#include "acparser.h"
#include "actables.h"
#include "16bit.h"
#define _COMPONENT ACPI_TABLES
ACPI_MODULE_NAME ("a16find")
/*
* This module finds ACPI tables located in memory.
* It is only generated for the 16-bit (real-mode) version of the utility.
*/
#define ACPI_TABLE_FILE_SUFFIX ".dat"
#if ACPI_MACHINE_WIDTH == 16
UINT32 ACPI_INTERNAL_VAR_XFACE dIn32 (UINT16 port);
void ACPI_INTERNAL_VAR_XFACE vOut32 (UINT16 port, UINT32 Val);
#define ACPI_ENABLE_HPET 0x00020000
char FilenameBuf[20];
ACPI_TABLE_HEADER AcpiTblHeader;
UINT32 TableSize;
UINT32 AcpiGbl_SystemFlags;
UINT32 AcpiGbl_RsdpOriginalLocation;
#if 0
/******************************************************************************
*
* FUNCTION: AfWriteBuffer
*
* PARAMETERS:
*
* RETURN:
*
* DESCRIPTION: Open a file and write out a single buffer
*
******************************************************************************/
ACPI_NATIVE_INT
AfWriteBuffer (
char *Filename,
char *Buffer,
UINT32 Length)
{
FILE *fp;
ACPI_NATIVE_INT Actual;
fp = fopen (Filename, "wb");
if (!fp)
{
printf ("Couldn't open %s\n", Filename);
return -1;
}
Actual = fwrite (Buffer, (size_t) Length, 1, fp);
fclose (fp);
return Actual;
}
/******************************************************************************
*
* FUNCTION: AfGenerateFilename
*
* PARAMETERS:
*
* RETURN:
*
* DESCRIPTION: Build an output filename from an ACPI table ID string
*
******************************************************************************/
char *
AfGenerateFilename (char *TableId)
{
ACPI_NATIVE_UINT i;
for (i = 0; i < 8 && TableId[i] != ' ' && TableId[i] != 0; i++)
{
FilenameBuf [i] = TableId[i];
}
FilenameBuf [i] = 0;
strcat (FilenameBuf, ACPI_TABLE_FILE_SUFFIX);
return FilenameBuf;
}
/******************************************************************************
*
* FUNCTION: AfDumpTables
*
* PARAMETERS:
*
* RETURN:
*
* DESCRIPTION: Dump the loaded tables to a file (or files)
*
******************************************************************************/
void
AfDumpTables (void)
{
char *Filename;
if (!AcpiGbl_DSDT)
{
AcpiOsPrintf ("No DSDT!\n");
return;
}
Filename = AfGenerateFilename (AcpiGbl_DSDT->OemTableId);
AfWriteBuffer (Filename,
(char *) AcpiGbl_DSDT, AcpiGbl_DSDT->Length);
AcpiOsPrintf ("DSDT AML written to \"%s\"\n", Filename);
}
#endif
void pascal
cprint (
UINT32 value)
{
AcpiOsPrintf ("Seq: 0x%8.8X\n", value);
}
/******************************************************************************
*
* FUNCTION: CopyExtendedToReal
*
* PARAMETERS:
*
* RETURN:
*
* DESCRIPTION: Copy memory above 1meg
*
******************************************************************************/
int
CopyExtendedToReal (
void *Destination,
UINT32 PhysicalSource,
UINT32 Size)
{
int RetVal;
RetVal = FlatMove32 (GET_PHYSICAL_ADDRESS (Destination),
PhysicalSource, (UINT16) Size);
AcpiOsPrintf ("FlatMove return: 0x%hX From %X To %X Len %X\n",
(int) RetVal, PhysicalSource, GET_PHYSICAL_ADDRESS (Destination), Size);
return (RetVal);
}
/******************************************************************************
*
* FUNCTION: AfFindRsdp
*
* PARAMETERS:
*
* RETURN:
*
* DESCRIPTION: Scan memory to find the RSDP
*
******************************************************************************/
BOOLEAN
AfFindRsdp (RSDP_DESCRIPTOR **RSDP)
{
PTR_OVL Rove;
PTR_OVL_BUILD_PTR (Rove, 0, 0);
/* Scan low memory */
do
{
if (strncmp (Rove.ptr, RSDP_SIG, (size_t) 8) == 0)
{
/* TBD: Checksum check is invalid for X descriptor */
/* if (AcpiTbChecksum (Rove.ptr, sizeof(RSDP_DESCRIPTOR)) != 0)
{
*/
AcpiOsPrintf ("RSDP found at %p (Lo block)\n", Rove.ptr);
*RSDP = Rove.ptr;
return (TRUE);
}
Rove.ovl.base++;
}
while (Rove.ovl.base < 0x3F);
/* Scan high memory */
PTR_OVL_BUILD_PTR (Rove, 0xE000, 0);
do
{
if (strncmp (Rove.ptr, RSDP_SIG, (size_t) 8) == 0)
{
AcpiOsPrintf ("RSDP found at %p (Hi block)\n", Rove.ptr);
*RSDP = Rove.ptr;
return (TRUE);
}
Rove.ovl.base++;
}
while (Rove.ovl.base < 0xFFFF);
return (FALSE);
}
/******************************************************************************
*
* FUNCTION: AfRecognizeTable
*
* PARAMETERS: TablePtr - Input buffer pointer, optional
* TableInfo - Return value from AcpiTbGetTable
*
* RETURN: Status
*
* DESCRIPTION: Check a table signature for a match against known table types
*
******************************************************************************/
ACPI_STATUS
AfRecognizeTable (
char *TablePtr,
UINT32 PhysAddr,
ACPI_TABLE_DESC *TableInfo)
{
ACPI_TABLE_HEADER *TableHeader;
ACPI_STATUS Status;
ACPI_TABLE_TYPE TableType = 0;
void **TableGlobalPtr;
UINT32 i;
ACPI_FUNCTION_TRACE ("AfRecognizeTable");
/* Ensure that we have a valid table pointer */
TableHeader = (ACPI_TABLE_HEADER *) TableInfo->Pointer;
if (!TableHeader)
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
/* Search for a signature match among the known table types */
Status = AE_SUPPORT;
for (i = 1; i < NUM_ACPI_TABLE_TYPES; i++) /* Start at one -> Skip RSDP */
{
if (!ACPI_STRNCMP (TableHeader->Signature,
AcpiGbl_TableData[i].Signature,
AcpiGbl_TableData[i].SigLength))
{
AcpiOsPrintf ("Found table [%s] Length 0x%X\n",
AcpiGbl_TableData[i].Signature, (UINT32) TableHeader->Length);
TableType = i;
TableGlobalPtr = AcpiGbl_TableData[i].GlobalPtr;
Status = AE_OK;
break;
}
}
/* Return the table type via the info struct */
TableInfo->Type = (UINT8) TableType;
TableInfo->Length = (ACPI_SIZE) TableHeader->Length;
/*
* An AE_SUPPORT means that the table was not recognized.
* We ignore this table; just print a debug message
*/
if (Status == AE_SUPPORT)
{
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
"Unsupported table %s (Type %d) was found and discarded\n",
AcpiGbl_TableData[TableType].Name, (UINT32) TableType));
return_ACPI_STATUS (Status);
}
Status = AcpiTbValidateTableHeader (TableHeader);
if (ACPI_FAILURE (Status))
{
/* Table failed verification, map all errors to BAD_DATA */
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid table header found in table named %s (Type %d)\n",
AcpiGbl_TableData[TableType].Name, (UINT32) TableType));
return_ACPI_STATUS (AE_BAD_DATA);
}
/* Now get the rest of the table */
*TableGlobalPtr = ACPI_MEM_ALLOCATE (AcpiTblHeader.Length);
if (!*TableGlobalPtr)
{
AcpiOsPrintf ("Could not allocate buffer for Acpi table of length 0x%X\n",
(UINT32) ((FACS_DESCRIPTOR *) &AcpiTblHeader)->Length);
return_ACPI_STATUS (AE_NO_MEMORY);
}
TableInfo->Pointer = *TableGlobalPtr;
CopyExtendedToReal (*TableGlobalPtr, PhysAddr, AcpiTblHeader.Length);
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "%s=%p, (TableGlobalPtr=%p)\n", AcpiGbl_TableData[TableType].Signature,
*TableGlobalPtr, TableGlobalPtr));
if (AcpiGbl_DbOpt_verbose)
{
AcpiUtDumpBuffer (*TableGlobalPtr, 48, 0, 0);
}
/*
* Validate checksum for _most_ tables,
* even the ones whose signature we don't recognize
*/
if (TableType != ACPI_TABLE_FACS)
{
/* But don't abort if the checksum is wrong */
/* TBD: make this a configuration option? */
AcpiTbVerifyTableChecksum (*TableGlobalPtr);
}
return_ACPI_STATUS (Status);
}
/******************************************************************************
*
* FUNCTION: AfGetAllTables
*
* PARAMETERS: Root - Root of the parse tree
*
* RETURN: None
*
* DESCRIPTION:
*
*****************************************************************************/
ACPI_STATUS
AfGetAllTables (
UINT32 NumberOfTables,
char *TablePtr)
{
ACPI_STATUS Status = AE_OK;
UINT32 Index;
ACPI_TABLE_DESC TableInfo;
ACPI_FUNCTION_TRACE ("AfGetAllTables");
if (AcpiGbl_DbOpt_verbose)
{
AcpiOsPrintf ("Number of tables: %d\n", (UINT32) NumberOfTables);
}
/*
* Loop through all table pointers found in RSDT.
* This will NOT include the FACS and DSDT - we must get
* them after the loop
*/
for (Index = 0; Index < NumberOfTables; Index++)
{
/* Get the table via the RSDT */
CopyExtendedToReal (&AcpiTblHeader, ACPI_GET_ADDRESS (AcpiGbl_XSDT->TableOffsetEntry[Index]),
sizeof (ACPI_TABLE_HEADER));
TableInfo.Pointer = &AcpiTblHeader;
TableInfo.Length = (ACPI_SIZE) AcpiTblHeader.Length;
TableInfo.Allocation = ACPI_MEM_ALLOCATED;
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Table pointer: %X\n",
(UINT32) ACPI_GET_ADDRESS (AcpiGbl_XSDT->TableOffsetEntry[Index])));
Status = AfRecognizeTable (NULL, ACPI_GET_ADDRESS (AcpiGbl_XSDT->TableOffsetEntry[Index]), &TableInfo);
if (ACPI_SUCCESS (Status))
{
AcpiTbInitTableDescriptor (TableInfo.Type, &TableInfo);
}
/* Ignore errors, just move on to next table */
}
if (!AcpiGbl_FADT)
{
AcpiOsPrintf ("FADT was not found, cannot obtain FACS and DSDT!\n");
return (AE_NO_ACPI_TABLES);
}
Status = AcpiTbConvertTableFadt ();
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/*
* Get the FACS
*/
CopyExtendedToReal (&AcpiTblHeader, ACPI_GET_ADDRESS (AcpiGbl_FADT->XFirmwareCtrl),
sizeof (ACPI_TABLE_HEADER));
AcpiGbl_FACS = ACPI_MEM_ALLOCATE (AcpiTblHeader.Length);
if (!AcpiGbl_FACS)
{
AcpiOsPrintf ("Could not allocate buffer for FADT length 0x%X\n",
(UINT32) AcpiTblHeader.Length);
return_ACPI_STATUS (AE_NO_MEMORY);
}
CopyExtendedToReal (AcpiGbl_FACS, ACPI_GET_ADDRESS (AcpiGbl_FADT->XFirmwareCtrl), AcpiTblHeader.Length);
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "FACS at %p (Phys %8.8X) length %X FADT at%p\n",
AcpiGbl_FACS, (UINT32) ACPI_GET_ADDRESS (AcpiGbl_FADT->XFirmwareCtrl),
(UINT32) AcpiTblHeader.Length, AcpiGbl_FADT));
if (AcpiGbl_DbOpt_verbose)
{
AcpiUtDumpBuffer ((char *) AcpiGbl_FADT, sizeof (ACPI_TABLE_HEADER), 0, 0);
}
TableInfo.Type = ACPI_TABLE_FADT;
TableInfo.Pointer = (void *) AcpiGbl_FADT;
TableInfo.Length = (ACPI_SIZE) AcpiTblHeader.Length;
TableInfo.Allocation = ACPI_MEM_ALLOCATED;
/* There is no checksum for the FACS, nothing to verify */
AcpiTbInitTableDescriptor (TableInfo.Type, &TableInfo);
AcpiTbBuildCommonFacs (&TableInfo);
/*
* Get the DSDT
*/
CopyExtendedToReal (&AcpiTblHeader, ACPI_GET_ADDRESS (AcpiGbl_FADT->XDsdt), sizeof (ACPI_TABLE_HEADER));
AcpiGbl_DSDT = ACPI_MEM_ALLOCATE (AcpiTblHeader.Length);
if (!AcpiGbl_DSDT)
{
AcpiOsPrintf ("Could not allocate buffer for DSDT length 0x%X\n", (UINT32) AcpiTblHeader.Length);
return_ACPI_STATUS (AE_NO_MEMORY);
}
CopyExtendedToReal (AcpiGbl_DSDT, ACPI_GET_ADDRESS (AcpiGbl_FADT->XDsdt), AcpiTblHeader.Length);
AcpiOsPrintf ("DSDT at %p (Phys %8.8X) length %X FADT at %p\n",
AcpiGbl_DSDT, (UINT32) ACPI_GET_ADDRESS (AcpiGbl_FADT->XDsdt),
(UINT32) AcpiTblHeader.Length, AcpiGbl_FADT);
if (AcpiGbl_DbOpt_verbose)
{
AcpiUtDumpBuffer ((char *) AcpiGbl_DSDT, sizeof (ACPI_TABLE_HEADER), 0, 0);
}
TableInfo.Type = ACPI_TABLE_DSDT;
TableInfo.Pointer = (void *) AcpiGbl_DSDT;
TableInfo.Length = (ACPI_SIZE) AcpiTblHeader.Length;
TableInfo.Allocation = ACPI_MEM_ALLOCATED;
AcpiTbInitTableDescriptor (TableInfo.Type, &TableInfo);
AcpiTbVerifyTableChecksum ((ACPI_TABLE_HEADER *) AcpiGbl_DSDT);
return_ACPI_STATUS (AE_OK);
}
ACPI_STATUS
AfGetRsdt (void)
{
BOOLEAN Found;
UINT32 PhysicalAddress;
UINT32 SignatureLength;
char *TableSignature;
ACPI_STATUS Status;
ACPI_TABLE_DESC TableInfo;
ACPI_FUNCTION_TRACE ("AfGetRsdt");
if (AcpiGbl_XSDT)
{
return (AE_OK);
}
Found = AfFindRsdp (&AcpiGbl_RSDP);
if (!Found)
{
AcpiOsPrintf ("Could not find RSDP in the low megabyte\n");
return (AE_NO_ACPI_TABLES);
}
/*
* For RSDP revision 0 or 1, we use the RSDT.
* For RSDP revision 2 (and above), we use the XSDT
*/
if (AcpiGbl_RSDP->Revision < 2)
{
PhysicalAddress = AcpiGbl_RSDP->RsdtPhysicalAddress;
TableSignature = RSDT_SIG;
SignatureLength = sizeof (RSDT_SIG) -1;
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Found ACPI 1.0 RSDP\n"));
}
else
{
PhysicalAddress = ACPI_GET_ADDRESS (AcpiGbl_RSDP->XsdtPhysicalAddress);
TableSignature = XSDT_SIG;
SignatureLength = sizeof (XSDT_SIG) -1;
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Found ACPI 2.0 RSDP\n"));
}
if (AcpiGbl_DbOpt_verbose)
{
AcpiUtDumpBuffer ((char *) AcpiGbl_RSDP, sizeof (RSDP_DESCRIPTOR), 0, ACPI_UINT32_MAX);
}
/* Get the RSDT/XSDT header to determine the table length */
CopyExtendedToReal (&AcpiTblHeader, PhysicalAddress, sizeof (ACPI_TABLE_HEADER));
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "RSDT/XSDT at %8.8X\n", (UINT32) PhysicalAddress));
if (AcpiGbl_DbOpt_verbose)
{
AcpiUtDumpBuffer ((char *) &AcpiTblHeader, sizeof (ACPI_TABLE_HEADER), 0, ACPI_UINT32_MAX);
}
/* Validate the table header */
Status = AcpiTbValidateTableHeader (&AcpiTblHeader);
if (ACPI_FAILURE (Status))
{
/* Table failed verification, map all errors to BAD_DATA */
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid RSDT table header\n"));
return (AE_BAD_DATA);
}
/* Allocate a buffer for the entire table */
AcpiGbl_XSDT = (void *) malloc ((size_t) AcpiTblHeader.Length);
if (!AcpiGbl_XSDT)
{
AcpiOsPrintf ("Could not allocate buffer for RSDT length 0x%X\n",
(UINT32) AcpiTblHeader.Length);
return AE_NO_MEMORY;
}
/* Get the entire RSDT/XSDT */
CopyExtendedToReal (AcpiGbl_XSDT, PhysicalAddress, AcpiTblHeader.Length);
AcpiOsPrintf ("%s at %p (Phys %8.8X)\n",
TableSignature, AcpiGbl_XSDT, (UINT32) PhysicalAddress);
if (AcpiGbl_DbOpt_verbose)
{
AcpiUtDumpBuffer ((char *) &AcpiTblHeader, sizeof (ACPI_TABLE_HEADER), 0, 0);
}
/* Convert to common format XSDT */
TableInfo.Pointer = (ACPI_TABLE_HEADER *) AcpiGbl_XSDT;
TableInfo.Length = (ACPI_SIZE) AcpiTblHeader.Length;
TableInfo.Allocation = ACPI_MEM_ALLOCATED;
AcpiGbl_RsdtTableCount = AcpiTbGetTableCount (AcpiGbl_RSDP, TableInfo.Pointer);
Status = AcpiTbConvertToXsdt (&TableInfo);
if (ACPI_FAILURE (Status))
{
goto ErrorExit;
}
AcpiGbl_XSDT = (XSDT_DESCRIPTOR *) TableInfo.Pointer;
ErrorExit:
return (Status);
}
void
AfDumpRsdt (void)
{
UINT32 i;
UINT32 NumTables;
UINT32 PhysicalAddress;
ACPI_TABLE_HEADER **Table;
ACPI_TABLE_HEADER ThisTable;
NumTables = (AcpiGbl_XSDT->Header.Length - sizeof (ACPI_TABLE_HEADER)) / 8;
AcpiOsPrintf ("%d Tables defined in RSDT/XSDT:\n", NumTables);
for (i = 0; i < NumTables; i++)
{
PhysicalAddress = (UINT32) AcpiGbl_XSDT->TableOffsetEntry[i].Lo;
CopyExtendedToReal (&ThisTable, PhysicalAddress, sizeof (ACPI_TABLE_HEADER));
AcpiOsPrintf ("[%4.4s] ", ThisTable.Signature);
((char *) Table) += 8;
}
AcpiOsPrintf ("\n");
}
ACPI_STATUS
AfGetTable (
ACPI_TABLE_HEADER *TableHeader,
UINT32 PhysicalAddress,
UINT8 **TablePtr)
{
/* Allocate a buffer for the entire table */
*TablePtr = (void *) malloc ((size_t) TableHeader->Length);
if (!*TablePtr)
{
AcpiOsPrintf ("Could not allocate buffer for table length 0x%X\n",
(UINT32) TableHeader->Length);
return AE_NO_MEMORY;
}
/* Get the entire table */
CopyExtendedToReal (*TablePtr, PhysicalAddress, TableHeader->Length);
AcpiOsPrintf ("%4.4s at %p (Phys %8.8X)\n",
TableHeader->Signature, *TablePtr, (UINT32) PhysicalAddress);
if (AcpiGbl_DbOpt_verbose)
{
AcpiUtDumpBuffer ((char *) TableHeader, sizeof (ACPI_TABLE_HEADER), 0, 0);
}
return (AE_OK);
}
ACPI_STATUS
AfGetTableFromXsdt (
char *TableName,
UINT8 **TablePtr)
{
UINT32 i;
UINT32 NumTables;
UINT32 PhysicalAddress;
ACPI_TABLE_HEADER ThisTable;
NumTables = (AcpiGbl_XSDT->Header.Length - sizeof (ACPI_TABLE_HEADER)) / 8;
for (i = 0; i < NumTables; i++)
{
PhysicalAddress = (UINT32) AcpiGbl_XSDT->TableOffsetEntry[i].Lo;
CopyExtendedToReal (&ThisTable, PhysicalAddress, sizeof (ACPI_TABLE_HEADER));
if (!ACPI_STRNCMP (TableName, ThisTable.Signature, ACPI_NAME_SIZE))
{
AfGetTable (&ThisTable, PhysicalAddress, TablePtr);
return (AE_OK);
}
}
return (AE_NOT_FOUND);
}
/******************************************************************************
*
* FUNCTION: AfFindTable
*
* PARAMETERS:
*
* RETURN: Status
*
* DESCRIPTION: Load the DSDT from the file pointer
*
*****************************************************************************/
ACPI_STATUS
AfFindTable (
char *TableName,
UINT8 **TablePtr,
UINT32 *TableLength)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE ("AfFindTable");
if (!AcpiGbl_DSDT)
{
Status = AfGetRsdt ();
if (ACPI_FAILURE (Status))
{
return (Status);
}
AfDumpRsdt ();
/* Get the rest of the required tables (DSDT, FADT) */
Status = AfGetAllTables (AcpiGbl_RsdtTableCount, NULL);
if (ACPI_FAILURE (Status))
{
goto ErrorExit;
}
ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "ACPI Tables successfully acquired\n"));
}
if (!ACPI_STRNCMP (TableName, DSDT_SIG, ACPI_NAME_SIZE))
{
*TablePtr = (UINT8 *) AcpiGbl_DSDT;
*TableLength = AcpiGbl_DSDT->Length;
}
else if (!ACPI_STRNCMP (TableName, FADT_SIG, ACPI_NAME_SIZE))
{
*TablePtr = (UINT8 *) AcpiGbl_FADT;
*TableLength = AcpiGbl_FADT->Header.Length;
}
else if (!ACPI_STRNCMP (TableName, FACS_SIG, ACPI_NAME_SIZE))
{
*TablePtr = (UINT8 *) AcpiGbl_FACS;
*TableLength = AcpiGbl_FACS->Length;
}
else if (!ACPI_STRNCMP (TableName, RSDT_SIG, ACPI_NAME_SIZE))
{
*TablePtr = (UINT8 *) AcpiGbl_XSDT;
*TableLength = AcpiGbl_XSDT->Header.Length;
}
else if (!ACPI_STRNCMP (TableName, SSDT_SIG, ACPI_NAME_SIZE))
{
AcpiOsPrintf ("Unsupported table signature: [%4.4s]\n", TableName);
*TablePtr = NULL;
return AE_SUPPORT;
}
else
{
Status = AfGetTableFromXsdt (TableName, TablePtr);
if (ACPI_FAILURE (Status))
{
goto ErrorExit;
}
*TableLength = (*((ACPI_TABLE_HEADER **)TablePtr))->Length;
}
return AE_OK;
ErrorExit:
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Failure during ACPI Table initialization: %s\n",
AcpiFormatException (Status)));
return (Status);
}
#ifdef _HPET
UINT8 Hbuf[1024];
void
AfGetHpet (void)
{
HPET_DESCRIPTION_TABLE *NewTable;
ACPI_TABLE_HEADER TableHeader;
ACPI_STATUS Status;
UINT16 i;
UINT32 Value;
UINT32 Value2;
/* Get HPET TEMP! */
ACPI_STRNCPY (TableHeader.Signature, "HPET", 4);
Status = AcpiOsTableOverride (&TableHeader, (ACPI_TABLE_HEADER **) &NewTable);
if (ACPI_FAILURE (Status))
{
return;
}
AcpiDbgLevel |= ACPI_LV_TABLES;
AcpiOsPrintf ("HPET table :\n");
AcpiUtDumpBuffer ((char *) NewTable, NewTable->Header.Length, DB_BYTE_DISPLAY, ACPI_UINT32_MAX);
for (i = 0; i < 1024; i++)
{
Hbuf[i] = (UINT8) i;
}
/* enable HPET */
CopyExtendedToReal (&Value, 0xD0, 4);
AcpiOsPrintf ("Reg 0xD0: %8.8X\n", Value);
Value = dIn32 (0xD0);
AcpiOsPrintf ("Port 0xD0: %8.8X\n", Value);
Value |= ACPI_ENABLE_HPET;
vOut32 (0xD0, Value);
Value2 = dIn32 (0xD0);
AcpiOsPrintf ("Port 0xD0: Wrote: %8.8X got %8.8X\n", Value, Value2);
AcpiOsPrintf ("HPET block(at %8.8X):\n", NewTable->BaseAddress[2]);
CopyExtendedToReal (Hbuf, NewTable->BaseAddress[2], 1024);
AcpiUtDumpBuffer ((char *) Hbuf, 1024, DB_BYTE_DISPLAY, ACPI_UINT32_MAX);
}
#endif /* _HPET */
#endif /* IA16 */
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