d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
a468031ce8
freebsd-dev/sys/contrib/dev/acpica/rscalc.c

1004 lines
32 KiB
C
Raw Normal View History

Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
/*******************************************************************************
*
* Module Name: rscalc - AcpiRsCalculateByteStreamLength
* AcpiRsCalculateListLength
Belated vendor update to the Intel ACPI CA 20010208 snapshot.
2001-03-05 02:15:19 +00:00
* $Revision: 21 $
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
*
******************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
Update to the 20010125 ACPI CA snapshot.
2001-01-31 09:17:50 +00:00
* Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp.
Update to the Intel 20001215 ACPI CA snapshot.
2000-12-21 06:56:46 +00:00
* All rights reserved.
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
*
* 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 __RSCALC_C__
#include "acpi.h"
Update to the 20001115 Intel ACPI CA snapshot.
2000-12-01 09:36:25 +00:00
#include "acresrc.h"
Belated vendor update to the Intel ACPI CA 20010208 snapshot.
2001-03-05 02:15:19 +00:00
#include "amlcode.h"
#include "acnamesp.h"
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
#define _COMPONENT RESOURCE_MANAGER
MODULE_NAME ("rscalc")
/*******************************************************************************
*
* FUNCTION: AcpiRsCalculateByteStreamLength
*
* PARAMETERS: LinkedList - Pointer to the resource linked list
* SizeNeeded - UINT32 pointer of the size buffer needed
* to properly return the parsed data
*
* RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
*
* DESCRIPTION: Takes the resource byte stream and parses it once, calculating
* the size buffer needed to hold the linked list that conveys
* the resource data.
*
******************************************************************************/
ACPI_STATUS
AcpiRsCalculateByteStreamLength (
RESOURCE *LinkedList,
UINT32 *SizeNeeded)
{
UINT32 ByteStreamSizeNeeded = 0;
UINT32 SegmentSize;
EXTENDED_IRQ_RESOURCE *ExIrq = NULL;
BOOLEAN Done = FALSE;
FUNCTION_TRACE ("RsCalculateByteStreamLength");
while (!Done)
{
/*
* Init the variable that will hold the size to add to the
* total.
*/
SegmentSize = 0;
switch (LinkedList->Id)
{
case Irq:
/*
* IRQ Resource
*/
/*
* For an IRQ Resource, Byte 3, although optional, will
* always be created - it holds IRQ information.
*/
SegmentSize = 4;
break;
case Dma:
/*
* DMA Resource
*/
/*
* For this resource the size is static
*/
SegmentSize = 3;
break;
case StartDependentFunctions:
/*
* Start Dependent Functions Resource
*/
/*
* For a StartDependentFunctions Resource, Byte 1,
* although optional, will always be created.
*/
SegmentSize = 2;
break;
case EndDependentFunctions:
/*
* End Dependent Functions Resource
*/
/*
* For this resource the size is static
*/
SegmentSize = 1;
break;
case Io:
/*
* IO Port Resource
*/
/*
* For this resource the size is static
*/
SegmentSize = 8;
break;
case FixedIo:
/*
* Fixed IO Port Resource
*/
/*
* For this resource the size is static
*/
SegmentSize = 4;
break;
case VendorSpecific:
/*
* Vendor Defined Resource
*/
/*
* For a Vendor Specific resource, if the Length is
* between 1 and 7 it will be created as a Small
* Resource data type, otherwise it is a Large
* Resource data type.
*/
if(LinkedList->Data.VendorSpecific.Length > 7)
{
SegmentSize = 3;
}
else
{
SegmentSize = 1;
}
SegmentSize +=
LinkedList->Data.VendorSpecific.Length;
break;
case EndTag:
/*
* End Tag
*/
/*
* For this resource the size is static
*/
SegmentSize = 2;
Done = TRUE;
break;
case Memory24:
/*
* 24-Bit Memory Resource
*/
/*
* For this resource the size is static
*/
SegmentSize = 12;
break;
case Memory32:
/*
* 32-Bit Memory Range Resource
*/
/*
* For this resource the size is static
*/
SegmentSize = 20;
break;
case FixedMemory32:
/*
* 32-Bit Fixed Memory Resource
*/
/*
* For this resource the size is static
*/
SegmentSize = 12;
break;
case Address16:
/*
* 16-Bit Address Resource
*/
/*
* The base size of this byte stream is 16. If a
* Resource Source string is not NULL, add 1 for
* the Index + the length of the null terminated
* string Resource Source + 1 for the null.
*/
SegmentSize = 16;
if(NULL != LinkedList->Data.Address16.ResourceSource)
{
SegmentSize += (1 +
LinkedList->Data.Address16.ResourceSourceStringLength);
}
break;
case Address32:
/*
* 32-Bit Address Resource
*/
/*
* The base size of this byte stream is 26. If a Resource
* Source string is not NULL, add 1 for the Index + the
* length of the null terminated string Resource Source +
* 1 for the null.
*/
SegmentSize = 26;
if(NULL != LinkedList->Data.Address16.ResourceSource)
{
SegmentSize += (1 +
LinkedList->Data.Address16.ResourceSourceStringLength);
}
break;
case ExtendedIrq:
/*
* Extended IRQ Resource
*/
/*
* The base size of this byte stream is 9. This is for an
* Interrupt table length of 1. For each additional
* interrupt, add 4.
* If a Resource Source string is not NULL, add 1 for the
* Index + the length of the null terminated string
* Resource Source + 1 for the null.
*/
SegmentSize = 9;
SegmentSize +=
(LinkedList->Data.ExtendedIrq.NumberOfInterrupts -
1) * 4;
if(NULL != ExIrq->ResourceSource)
{
SegmentSize += (1 +
LinkedList->Data.ExtendedIrq.ResourceSourceStringLength);
}
break;
default:
/*
* If we get here, everything is out of sync,
* so exit with an error
*/
return_ACPI_STATUS (AE_AML_ERROR);
break;
} /* switch (LinkedList->Id) */
/*
* Update the total
*/
ByteStreamSizeNeeded += SegmentSize;
/*
* Point to the next object
*/
LinkedList = (RESOURCE *) ((NATIVE_UINT) LinkedList +
(NATIVE_UINT) LinkedList->Length);
}
/*
* This is the data the caller needs
*/
*SizeNeeded = ByteStreamSizeNeeded;
return_ACPI_STATUS (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: AcpiRsCalculateListLength
*
* PARAMETERS: ByteStreamBuffer - Pointer to the resource byte stream
* ByteStreamBufferLength - Size of ByteStreamBuffer
* SizeNeeded - UINT32 pointer of the size buffer
* needed to properly return the
* parsed data
*
* RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
*
* DESCRIPTION: Takes the resource byte stream and parses it once, calculating
* the size buffer needed to hold the linked list that conveys
* the resource data.
*
******************************************************************************/
ACPI_STATUS
AcpiRsCalculateListLength (
UINT8 *ByteStreamBuffer,
UINT32 ByteStreamBufferLength,
UINT32 *SizeNeeded)
{
UINT32 BufferSize = 0;
UINT32 BytesParsed = 0;
UINT8 NumberOfInterrupts = 0;
UINT8 NumberOfChannels = 0;
UINT8 ResourceType;
UINT32 StructureSize;
UINT32 BytesConsumed;
UINT8 *Buffer;
UINT8 Temp8;
UINT16 Temp16;
UINT8 Index;
UINT8 AdditionalBytes;
FUNCTION_TRACE ("RsCalculateListLength");
while (BytesParsed < ByteStreamBufferLength)
{
/*
* Look at the next byte in the stream
*/
ResourceType = *ByteStreamBuffer;
/*
* See if this is a small or large resource
*/
if(ResourceType & 0x80)
{
/*
* Large Resource Type
*/
switch (ResourceType)
{
case MEMORY_RANGE_24:
/*
* 24-Bit Memory Resource
*/
BytesConsumed = 12;
StructureSize = sizeof (MEMORY24_RESOURCE) +
RESOURCE_LENGTH_NO_DATA;
break;
case LARGE_VENDOR_DEFINED:
/*
* Vendor Defined Resource
*/
Buffer = ByteStreamBuffer;
++Buffer;
MOVE_UNALIGNED16_TO_16 (&Temp16, Buffer);
BytesConsumed = Temp16 + 3;
/*
* Ensure a 32-bit boundary for the structure
*/
Temp16 = (UINT16) ROUND_UP_TO_32BITS (Temp16);
StructureSize = sizeof (VENDOR_RESOURCE) +
RESOURCE_LENGTH_NO_DATA +
(Temp16 * sizeof (UINT8));
break;
case MEMORY_RANGE_32:
/*
* 32-Bit Memory Range Resource
*/
BytesConsumed = 20;
StructureSize = sizeof (MEMORY32_RESOURCE) +
RESOURCE_LENGTH_NO_DATA;
break;
case FIXED_MEMORY_RANGE_32:
/*
* 32-Bit Fixed Memory Resource
*/
BytesConsumed = 12;
StructureSize = sizeof(FIXED_MEMORY32_RESOURCE) +
RESOURCE_LENGTH_NO_DATA;
break;
case DWORD_ADDRESS_SPACE:
/*
* 32-Bit Address Resource
*/
Buffer = ByteStreamBuffer;
++Buffer;
MOVE_UNALIGNED16_TO_16 (&Temp16, Buffer);
BytesConsumed = Temp16 + 3;
/*
* Resource Source Index and Resource Source are
* optional elements. Check the length of the
* Bytestream. If it is greater than 23, that
* means that an Index exists and is followed by
* a null termininated string. Therefore, set
* the temp variable to the length minus the minimum
* byte stream length plus the byte for the Index to
* determine the size of the NULL terminiated string.
*/
if (23 < Temp16)
{
Temp8 = (UINT8) (Temp16 - 24);
}
else
{
Temp8 = 0;
}
/*
* Ensure a 32-bit boundary for the structure
*/
Temp8 = (UINT8) ROUND_UP_TO_32BITS (Temp8);
StructureSize = sizeof (ADDRESS32_RESOURCE) +
RESOURCE_LENGTH_NO_DATA +
(Temp8 * sizeof (UINT8));
break;
case WORD_ADDRESS_SPACE:
/*
* 16-Bit Address Resource
*/
Buffer = ByteStreamBuffer;
++Buffer;
MOVE_UNALIGNED16_TO_16 (&Temp16, Buffer);
BytesConsumed = Temp16 + 3;
/*
* Resource Source Index and Resource Source are
* optional elements. Check the length of the
* Bytestream. If it is greater than 13, that
* means that an Index exists and is followed by
* a null termininated string. Therefore, set
* the temp variable to the length minus the minimum
* byte stream length plus the byte for the Index to
* determine the size of the NULL terminiated string.
*/
if (13 < Temp16)
{
Temp8 = (UINT8) (Temp16 - 14);
}
else
{
Temp8 = 0;
}
/*
* Ensure a 32-bit boundry for the structure
*/
Temp8 = (UINT8) ROUND_UP_TO_32BITS (Temp8);
StructureSize = sizeof (ADDRESS16_RESOURCE) +
RESOURCE_LENGTH_NO_DATA +
(Temp8 * sizeof (UINT8));
break;
case EXTENDED_IRQ:
/*
* Extended IRQ
*/
Buffer = ByteStreamBuffer;
++Buffer;
MOVE_UNALIGNED16_TO_16 (&Temp16, Buffer);
BytesConsumed = Temp16 + 3;
/*
* Point past the length field and the
* Interrupt vector flags to save off the
* Interrupt table length to the Temp8 variable.
*/
Buffer += 3;
Temp8 = *Buffer;
/*
* To compensate for multiple interrupt numbers,
* Add 4 bytes for each additional interrupts
* greater than 1
*/
AdditionalBytes = (UINT8) ((Temp8 - 1) * 4);
/*
* Resource Source Index and Resource Source are
* optional elements. Check the length of the
* Bytestream. If it is greater than 9, that
* means that an Index exists and is followed by
* a null termininated string. Therefore, set
* the temp variable to the length minus the minimum
* byte stream length plus the byte for the Index to
* determine the size of the NULL terminiated string.
*/
if (9 + AdditionalBytes < Temp16)
{
Temp8 = (UINT8) (Temp16 - (9 + AdditionalBytes));
}
else
{
Temp8 = 0;
}
/*
* Ensure a 32-bit boundry for the structure
*/
Temp8 = (UINT8) ROUND_UP_TO_32BITS (Temp8);
StructureSize = sizeof (EXTENDED_IRQ_RESOURCE) +
RESOURCE_LENGTH_NO_DATA +
(AdditionalBytes * sizeof (UINT8)) +
(Temp8 * sizeof (UINT8));
break;
/* TBD: [Future] 64-bit not currently supported */
/*
case 0x8A:
break;
*/
default:
/*
* If we get here, everything is out of sync,
* so exit with an error
*/
return_ACPI_STATUS (AE_AML_ERROR);
break;
}
}
else
{
/*
* Small Resource Type
* Only bits 7:3 are valid
*/
ResourceType >>= 3;
switch (ResourceType)
{
case IRQ_FORMAT:
/*
* IRQ Resource
*/
/*
* Determine if it there are two or three
* trailing bytes
*/
Buffer = ByteStreamBuffer;
Temp8 = *Buffer;
if(Temp8 & 0x01)
{
BytesConsumed = 4;
}
else
{
BytesConsumed = 3;
}
/*
* Point past the descriptor
*/
++Buffer;
/*
* Look at the number of bits set
*/
MOVE_UNALIGNED16_TO_16 (&Temp16, Buffer);
for (Index = 0; Index < 16; Index++)
{
if (Temp16 & 0x1)
{
++NumberOfInterrupts;
}
Temp16 >>= 1;
}
StructureSize = sizeof (IO_RESOURCE) +
RESOURCE_LENGTH_NO_DATA +
(NumberOfInterrupts * sizeof (UINT32));
break;
case DMA_FORMAT:
/*
* DMA Resource
*/
Buffer = ByteStreamBuffer;
BytesConsumed = 3;
/*
* Point past the descriptor
*/
++Buffer;
/*
* Look at the number of bits set
*/
Temp8 = *Buffer;
for(Index = 0; Index < 8; Index++)
{
if(Temp8 & 0x1)
{
++NumberOfChannels;
}
Temp8 >>= 1;
}
StructureSize = sizeof (DMA_RESOURCE) +
RESOURCE_LENGTH_NO_DATA +
(NumberOfChannels * sizeof (UINT32));
break;
case START_DEPENDENT_TAG:
/*
* Start Dependent Functions Resource
*/
/*
* Determine if it there are two or three trailing bytes
*/
Buffer = ByteStreamBuffer;
Temp8 = *Buffer;
if(Temp8 & 0x01)
{
BytesConsumed = 2;
}
else
{
BytesConsumed = 1;
}
StructureSize =
sizeof (START_DEPENDENT_FUNCTIONS_RESOURCE) +
RESOURCE_LENGTH_NO_DATA;
break;
case END_DEPENDENT_TAG:
/*
* End Dependent Functions Resource
*/
BytesConsumed = 1;
StructureSize = RESOURCE_LENGTH;
break;
case IO_PORT_DESCRIPTOR:
/*
* IO Port Resource
*/
BytesConsumed = 8;
StructureSize = sizeof (IO_RESOURCE) +
RESOURCE_LENGTH_NO_DATA;
break;
case FIXED_LOCATION_IO_DESCRIPTOR:
/*
* Fixed IO Port Resource
*/
BytesConsumed = 4;
StructureSize = sizeof (FIXED_IO_RESOURCE) +
RESOURCE_LENGTH_NO_DATA;
break;
case SMALL_VENDOR_DEFINED:
/*
* Vendor Specific Resource
*/
Buffer = ByteStreamBuffer;
Temp8 = *Buffer;
Temp8 = (UINT8) (Temp8 & 0x7);
BytesConsumed = Temp8 + 1;
/*
* Ensure a 32-bit boundry for the structure
*/
Temp8 = (UINT8) ROUND_UP_TO_32BITS (Temp8);
StructureSize = sizeof (VENDOR_RESOURCE) +
RESOURCE_LENGTH_NO_DATA +
(Temp8 * sizeof (UINT8));
break;
case END_TAG:
/*
* End Tag
*/
BytesConsumed = 2;
StructureSize = RESOURCE_LENGTH;
Belated vendor update to the Intel ACPI CA 20010208 snapshot.
2001-03-05 02:15:19 +00:00
ByteStreamBufferLength = BytesParsed;
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
break;
default:
/*
* If we get here, everything is out of sync,
* so exit with an error
*/
return_ACPI_STATUS (AE_AML_ERROR);
break;
} /* switch */
} /* if(ResourceType & 0x80) */
/*
* Update the return value and counter
*/
BufferSize += StructureSize;
BytesParsed += BytesConsumed;
/*
* Set the byte stream to point to the next resource
*/
ByteStreamBuffer += BytesConsumed;
}
/*
* This is the data the caller needs
*/
*SizeNeeded = BufferSize;
return_ACPI_STATUS (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: AcpiRsCalculatePciRoutingTableLength
*
* PARAMETERS: PackageObject - Pointer to the package object
* BufferSizeNeeded - UINT32 pointer of the size buffer
* needed to properly return the
* parsed data
*
* RETURN: Status AE_OK
*
* DESCRIPTION: Given a package representing a PCI routing table, this
* calculates the size of the corresponding linked list of
* descriptions.
*
******************************************************************************/
ACPI_STATUS
AcpiRsCalculatePciRoutingTableLength (
ACPI_OPERAND_OBJECT *PackageObject,
UINT32 *BufferSizeNeeded)
{
UINT32 NumberOfElements;
Update to the 20001115 Intel ACPI CA snapshot.
2000-12-01 09:36:25 +00:00
UINT32 TempSizeNeeded = 0;
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
ACPI_OPERAND_OBJECT **TopObjectList;
UINT32 Index;
ACPI_OPERAND_OBJECT *PackageElement;
ACPI_OPERAND_OBJECT **SubObjectList;
BOOLEAN NameFound;
UINT32 TableIndex;
FUNCTION_TRACE ("AcpiRsCalculatePciRoutingTableLength");
NumberOfElements = PackageObject->Package.Count;
/*
* Calculate the size of the return buffer.
* The base size is the number of elements * the sizes of the
* structures. Additional space for the strings is added below.
* The minus one is to subtract the size of the UINT8 Source[1]
* member because it is added below.
*
* NOTE: The NumberOfElements is incremented by one to add an end
* table structure that is essentially a structure of zeros.
*/
/*
* But each PRT_ENTRY structure has a pointer to a string and
* the size of that string must be found.
*/
TopObjectList = PackageObject->Package.Elements;
for (Index = 0; Index < NumberOfElements; Index++)
{
/*
* Dereference the sub-package
*/
PackageElement = *TopObjectList;
/*
* The SubObjectList will now point to an array of the
* four IRQ elements: Address, Pin, Source and SourceIndex
*/
SubObjectList = PackageElement->Package.Elements;
/*
* Scan the IrqTableElements for the Source Name String
*/
NameFound = FALSE;
for (TableIndex = 0; TableIndex < 4 && !NameFound; TableIndex++)
{
Belated vendor update to the Intel ACPI CA 20010208 snapshot.
2001-03-05 02:15:19 +00:00
if ((ACPI_TYPE_STRING == (*SubObjectList)->Common.Type) ||
((INTERNAL_TYPE_REFERENCE == (*SubObjectList)->Common.Type) &&
((*SubObjectList)->Reference.OpCode == AML_NAMEPATH_OP)))
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
{
NameFound = TRUE;
}
else
{
/*
* Look at the next element
*/
SubObjectList++;
}
}
Belated vendor update to the Intel ACPI CA 20010208 snapshot.
2001-03-05 02:15:19 +00:00
TempSizeNeeded += (sizeof (PCI_ROUTING_TABLE) - 4);
Update to the 20001115 Intel ACPI CA snapshot.
2000-12-01 09:36:25 +00:00
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
/*
* Was a String type found?
*/
if (TRUE == NameFound)
{
Belated vendor update to the Intel ACPI CA 20010208 snapshot.
2001-03-05 02:15:19 +00:00
if (ACPI_TYPE_STRING == (*SubObjectList)->Common.Type)
{
/*
* The length String.Length field includes the
* terminating NULL
*/
TempSizeNeeded += (*SubObjectList)->String.Length;
}
else
{
TempSizeNeeded += AcpiNsGetPathnameLength ((*SubObjectList)->Reference.Node);
}
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
}
else
{
/*
* If no name was found, then this is a NULL, which is
* translated as a UINT32 zero.
*/
TempSizeNeeded += sizeof(UINT32);
}
Update to the 20001115 Intel ACPI CA snapshot.
2000-12-01 09:36:25 +00:00
/* Round up the size since each element must be aligned */
TempSizeNeeded = ROUND_UP_TO_64BITS (TempSizeNeeded);
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
/*
* Point to the next ACPI_OPERAND_OBJECT
*/
TopObjectList++;
}
Belated vendor update to the Intel ACPI CA 20010208 snapshot.
2001-03-05 02:15:19 +00:00
*BufferSizeNeeded = TempSizeNeeded;
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
return_ACPI_STATUS (AE_OK);
Update to the 20001115 Intel ACPI CA snapshot.
2000-12-01 09:36:25 +00:00
}
Reference in New Issue Copy Permalink