| 0,0 → 1,745 |
|---|
| /******************************************************************************* |
| * |
| * Module Name: rscalc - Calculate stream and list lengths |
| * |
| ******************************************************************************/ |
| |
| /****************************************************************************** |
| * |
| * 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 __RSCALC_C__ |
| |
| #include "acpi.h" |
| #include "accommon.h" |
| #include "acresrc.h" |
| #include "acnamesp.h" |
| |
| |
| #define _COMPONENT ACPI_RESOURCES |
| ACPI_MODULE_NAME ("rscalc") |
| |
| |
| /* Local prototypes */ |
| |
| static UINT8 |
| AcpiRsCountSetBits ( |
| UINT16 BitField); |
| |
| static ACPI_RS_LENGTH |
| AcpiRsStructOptionLength ( |
| ACPI_RESOURCE_SOURCE *ResourceSource); |
| |
| static UINT32 |
| AcpiRsStreamOptionLength ( |
| UINT32 ResourceLength, |
| UINT32 MinimumTotalLength); |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiRsCountSetBits |
| * |
| * PARAMETERS: BitField - Field in which to count bits |
| * |
| * RETURN: Number of bits set within the field |
| * |
| * DESCRIPTION: Count the number of bits set in a resource field. Used for |
| * (Short descriptor) interrupt and DMA lists. |
| * |
| ******************************************************************************/ |
| |
| static UINT8 |
| AcpiRsCountSetBits ( |
| UINT16 BitField) |
| { |
| UINT8 BitsSet; |
| |
| |
| ACPI_FUNCTION_ENTRY (); |
| |
| |
| for (BitsSet = 0; BitField; BitsSet++) |
| { |
| /* Zero the least significant bit that is set */ |
| |
| BitField &= (UINT16) (BitField - 1); |
| } |
| |
| return (BitsSet); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiRsStructOptionLength |
| * |
| * PARAMETERS: ResourceSource - Pointer to optional descriptor field |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: Common code to handle optional ResourceSourceIndex and |
| * ResourceSource fields in some Large descriptors. Used during |
| * list-to-stream conversion |
| * |
| ******************************************************************************/ |
| |
| static ACPI_RS_LENGTH |
| AcpiRsStructOptionLength ( |
| ACPI_RESOURCE_SOURCE *ResourceSource) |
| { |
| ACPI_FUNCTION_ENTRY (); |
| |
| |
| /* |
| * If the ResourceSource string is valid, return the size of the string |
| * (StringLength includes the NULL terminator) plus the size of the |
| * ResourceSourceIndex (1). |
| */ |
| if (ResourceSource->StringPtr) |
| { |
| return ((ACPI_RS_LENGTH) (ResourceSource->StringLength + 1)); |
| } |
| |
| return (0); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiRsStreamOptionLength |
| * |
| * PARAMETERS: ResourceLength - Length from the resource header |
| * MinimumTotalLength - Minimum length of this resource, before |
| * any optional fields. Includes header size |
| * |
| * RETURN: Length of optional string (0 if no string present) |
| * |
| * DESCRIPTION: Common code to handle optional ResourceSourceIndex and |
| * ResourceSource fields in some Large descriptors. Used during |
| * stream-to-list conversion |
| * |
| ******************************************************************************/ |
| |
| static UINT32 |
| AcpiRsStreamOptionLength ( |
| UINT32 ResourceLength, |
| UINT32 MinimumAmlResourceLength) |
| { |
| UINT32 StringLength = 0; |
| |
| |
| ACPI_FUNCTION_ENTRY (); |
| |
| |
| /* |
| * The ResourceSourceIndex and ResourceSource are optional elements of some |
| * Large-type resource descriptors. |
| */ |
| |
| /* |
| * If the length of the actual resource descriptor is greater than the ACPI |
| * spec-defined minimum length, it means that a ResourceSourceIndex exists |
| * and is followed by a (required) null terminated string. The string length |
| * (including the null terminator) is the resource length minus the minimum |
| * length, minus one byte for the ResourceSourceIndex itself. |
| */ |
| if (ResourceLength > MinimumAmlResourceLength) |
| { |
| /* Compute the length of the optional string */ |
| |
| StringLength = ResourceLength - MinimumAmlResourceLength - 1; |
| } |
| |
| /* |
| * Round the length up to a multiple of the native word in order to |
| * guarantee that the entire resource descriptor is native word aligned |
| */ |
| return ((UINT32) ACPI_ROUND_UP_TO_NATIVE_WORD (StringLength)); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiRsGetAmlLength |
| * |
| * PARAMETERS: Resource - Pointer to the resource linked list |
| * SizeNeeded - Where the required size is returned |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: Takes a linked list of internal resource descriptors and |
| * calculates the size buffer needed to hold the corresponding |
| * external resource byte stream. |
| * |
| ******************************************************************************/ |
| |
| ACPI_STATUS |
| AcpiRsGetAmlLength ( |
| ACPI_RESOURCE *Resource, |
| ACPI_SIZE *SizeNeeded) |
| { |
| ACPI_SIZE AmlSizeNeeded = 0; |
| ACPI_RS_LENGTH TotalSize; |
| |
| |
| ACPI_FUNCTION_TRACE (RsGetAmlLength); |
| |
| |
| /* Traverse entire list of internal resource descriptors */ |
| |
| while (Resource) |
| { |
| /* Validate the descriptor type */ |
| |
| if (Resource->Type > ACPI_RESOURCE_TYPE_MAX) |
| { |
| return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE); |
| } |
| |
| /* Get the base size of the (external stream) resource descriptor */ |
| |
| TotalSize = AcpiGbl_AmlResourceSizes [Resource->Type]; |
| |
| /* |
| * Augment the base size for descriptors with optional and/or |
| * variable-length fields |
| */ |
| switch (Resource->Type) |
| { |
| case ACPI_RESOURCE_TYPE_IRQ: |
| |
| /* Length can be 3 or 2 */ |
| |
| if (Resource->Data.Irq.DescriptorLength == 2) |
| { |
| TotalSize--; |
| } |
| break; |
| |
| |
| case ACPI_RESOURCE_TYPE_START_DEPENDENT: |
| |
| /* Length can be 1 or 0 */ |
| |
| if (Resource->Data.Irq.DescriptorLength == 0) |
| { |
| TotalSize--; |
| } |
| break; |
| |
| |
| case ACPI_RESOURCE_TYPE_VENDOR: |
| /* |
| * 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 (Resource->Data.Vendor.ByteLength > 7) |
| { |
| /* Base size of a Large resource descriptor */ |
| |
| TotalSize = sizeof (AML_RESOURCE_LARGE_HEADER); |
| } |
| |
| /* Add the size of the vendor-specific data */ |
| |
| TotalSize = (ACPI_RS_LENGTH) |
| (TotalSize + Resource->Data.Vendor.ByteLength); |
| break; |
| |
| |
| case ACPI_RESOURCE_TYPE_END_TAG: |
| /* |
| * End Tag: |
| * We are done -- return the accumulated total size. |
| */ |
| *SizeNeeded = AmlSizeNeeded + TotalSize; |
| |
| /* Normal exit */ |
| |
| return_ACPI_STATUS (AE_OK); |
| |
| |
| case ACPI_RESOURCE_TYPE_ADDRESS16: |
| /* |
| * 16-Bit Address Resource: |
| * Add the size of the optional ResourceSource info |
| */ |
| TotalSize = (ACPI_RS_LENGTH) |
| (TotalSize + AcpiRsStructOptionLength ( |
| &Resource->Data.Address16.ResourceSource)); |
| break; |
| |
| |
| case ACPI_RESOURCE_TYPE_ADDRESS32: |
| /* |
| * 32-Bit Address Resource: |
| * Add the size of the optional ResourceSource info |
| */ |
| TotalSize = (ACPI_RS_LENGTH) |
| (TotalSize + AcpiRsStructOptionLength ( |
| &Resource->Data.Address32.ResourceSource)); |
| break; |
| |
| |
| case ACPI_RESOURCE_TYPE_ADDRESS64: |
| /* |
| * 64-Bit Address Resource: |
| * Add the size of the optional ResourceSource info |
| */ |
| TotalSize = (ACPI_RS_LENGTH) |
| (TotalSize + AcpiRsStructOptionLength ( |
| &Resource->Data.Address64.ResourceSource)); |
| break; |
| |
| |
| case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: |
| /* |
| * Extended IRQ Resource: |
| * Add the size of each additional optional interrupt beyond the |
| * required 1 (4 bytes for each UINT32 interrupt number) |
| */ |
| TotalSize = (ACPI_RS_LENGTH) |
| (TotalSize + |
| ((Resource->Data.ExtendedIrq.InterruptCount - 1) * 4) + |
| |
| /* Add the size of the optional ResourceSource info */ |
| |
| AcpiRsStructOptionLength ( |
| &Resource->Data.ExtendedIrq.ResourceSource)); |
| break; |
| |
| |
| default: |
| break; |
| } |
| |
| /* Update the total */ |
| |
| AmlSizeNeeded += TotalSize; |
| |
| /* Point to the next object */ |
| |
| Resource = ACPI_ADD_PTR (ACPI_RESOURCE, Resource, Resource->Length); |
| } |
| |
| /* Did not find an EndTag resource descriptor */ |
| |
| return_ACPI_STATUS (AE_AML_NO_RESOURCE_END_TAG); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiRsGetListLength |
| * |
| * PARAMETERS: AmlBuffer - Pointer to the resource byte stream |
| * AmlBufferLength - Size of AmlBuffer |
| * SizeNeeded - Where the size needed is returned |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: Takes an external resource byte stream and calculates the size |
| * buffer needed to hold the corresponding internal resource |
| * descriptor linked list. |
| * |
| ******************************************************************************/ |
| |
| ACPI_STATUS |
| AcpiRsGetListLength ( |
| UINT8 *AmlBuffer, |
| UINT32 AmlBufferLength, |
| ACPI_SIZE *SizeNeeded) |
| { |
| ACPI_STATUS Status; |
| UINT8 *EndAml; |
| UINT8 *Buffer; |
| UINT32 BufferSize; |
| UINT16 Temp16; |
| UINT16 ResourceLength; |
| UINT32 ExtraStructBytes; |
| UINT8 ResourceIndex; |
| UINT8 MinimumAmlResourceLength; |
| |
| |
| ACPI_FUNCTION_TRACE (RsGetListLength); |
| |
| |
| *SizeNeeded = 0; |
| EndAml = AmlBuffer + AmlBufferLength; |
| |
| /* Walk the list of AML resource descriptors */ |
| |
| while (AmlBuffer < EndAml) |
| { |
| /* Validate the Resource Type and Resource Length */ |
| |
| Status = AcpiUtValidateResource (AmlBuffer, &ResourceIndex); |
| if (ACPI_FAILURE (Status)) |
| { |
| return_ACPI_STATUS (Status); |
| } |
| |
| /* Get the resource length and base (minimum) AML size */ |
| |
| ResourceLength = AcpiUtGetResourceLength (AmlBuffer); |
| MinimumAmlResourceLength = AcpiGbl_ResourceAmlSizes[ResourceIndex]; |
| |
| /* |
| * Augment the size for descriptors with optional |
| * and/or variable length fields |
| */ |
| ExtraStructBytes = 0; |
| Buffer = AmlBuffer + AcpiUtGetResourceHeaderLength (AmlBuffer); |
| |
| switch (AcpiUtGetResourceType (AmlBuffer)) |
| { |
| case ACPI_RESOURCE_NAME_IRQ: |
| /* |
| * IRQ Resource: |
| * Get the number of bits set in the 16-bit IRQ mask |
| */ |
| ACPI_MOVE_16_TO_16 (&Temp16, Buffer); |
| ExtraStructBytes = AcpiRsCountSetBits (Temp16); |
| break; |
| |
| |
| case ACPI_RESOURCE_NAME_DMA: |
| /* |
| * DMA Resource: |
| * Get the number of bits set in the 8-bit DMA mask |
| */ |
| ExtraStructBytes = AcpiRsCountSetBits (*Buffer); |
| break; |
| |
| |
| case ACPI_RESOURCE_NAME_VENDOR_SMALL: |
| case ACPI_RESOURCE_NAME_VENDOR_LARGE: |
| /* |
| * Vendor Resource: |
| * Get the number of vendor data bytes |
| */ |
| ExtraStructBytes = ResourceLength; |
| break; |
| |
| |
| case ACPI_RESOURCE_NAME_END_TAG: |
| /* |
| * End Tag: |
| * This is the normal exit, add size of EndTag |
| */ |
| *SizeNeeded += ACPI_RS_SIZE_MIN; |
| return_ACPI_STATUS (AE_OK); |
| |
| |
| case ACPI_RESOURCE_NAME_ADDRESS32: |
| case ACPI_RESOURCE_NAME_ADDRESS16: |
| case ACPI_RESOURCE_NAME_ADDRESS64: |
| /* |
| * Address Resource: |
| * Add the size of the optional ResourceSource |
| */ |
| ExtraStructBytes = AcpiRsStreamOptionLength ( |
| ResourceLength, MinimumAmlResourceLength); |
| break; |
| |
| |
| case ACPI_RESOURCE_NAME_EXTENDED_IRQ: |
| /* |
| * Extended IRQ Resource: |
| * Using the InterruptTableLength, add 4 bytes for each additional |
| * interrupt. Note: at least one interrupt is required and is |
| * included in the minimum descriptor size (reason for the -1) |
| */ |
| ExtraStructBytes = (Buffer[1] - 1) * sizeof (UINT32); |
| |
| /* Add the size of the optional ResourceSource */ |
| |
| ExtraStructBytes += AcpiRsStreamOptionLength ( |
| ResourceLength - ExtraStructBytes, MinimumAmlResourceLength); |
| break; |
| |
| |
| default: |
| break; |
| } |
| |
| /* |
| * Update the required buffer size for the internal descriptor structs |
| * |
| * Important: Round the size up for the appropriate alignment. This |
| * is a requirement on IA64. |
| */ |
| BufferSize = AcpiGbl_ResourceStructSizes[ResourceIndex] + |
| ExtraStructBytes; |
| BufferSize = (UINT32) ACPI_ROUND_UP_TO_NATIVE_WORD (BufferSize); |
| |
| *SizeNeeded += BufferSize; |
| |
| ACPI_DEBUG_PRINT ((ACPI_DB_RESOURCES, |
| "Type %.2X, AmlLength %.2X InternalLength %.2X\n", |
| AcpiUtGetResourceType (AmlBuffer), |
| AcpiUtGetDescriptorLength (AmlBuffer), BufferSize)); |
| |
| /* |
| * Point to the next resource within the AML stream using the length |
| * contained in the resource descriptor header |
| */ |
| AmlBuffer += AcpiUtGetDescriptorLength (AmlBuffer); |
| } |
| |
| /* Did not find an EndTag resource descriptor */ |
| |
| return_ACPI_STATUS (AE_AML_NO_RESOURCE_END_TAG); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiRsGetPciRoutingTableLength |
| * |
| * PARAMETERS: PackageObject - Pointer to the package object |
| * BufferSizeNeeded - UINT32 pointer of the size buffer |
| * needed to properly return the |
| * parsed data |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: Given a package representing a PCI routing table, this |
| * calculates the size of the corresponding linked list of |
| * descriptions. |
| * |
| ******************************************************************************/ |
| |
| ACPI_STATUS |
| AcpiRsGetPciRoutingTableLength ( |
| ACPI_OPERAND_OBJECT *PackageObject, |
| ACPI_SIZE *BufferSizeNeeded) |
| { |
| UINT32 NumberOfElements; |
| ACPI_SIZE TempSizeNeeded = 0; |
| ACPI_OPERAND_OBJECT **TopObjectList; |
| UINT32 Index; |
| ACPI_OPERAND_OBJECT *PackageElement; |
| ACPI_OPERAND_OBJECT **SubObjectList; |
| BOOLEAN NameFound; |
| UINT32 TableIndex; |
| |
| |
| ACPI_FUNCTION_TRACE (RsGetPciRoutingTableLength); |
| |
| |
| 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. |
| * |
| * 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; |
| |
| /* We must have a valid Package object */ |
| |
| if (!PackageElement || |
| (PackageElement->Common.Type != ACPI_TYPE_PACKAGE)) |
| { |
| return_ACPI_STATUS (AE_AML_OPERAND_TYPE); |
| } |
| |
| /* |
| * 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++) |
| { |
| if (*SubObjectList && /* Null object allowed */ |
| |
| ((ACPI_TYPE_STRING == |
| (*SubObjectList)->Common.Type) || |
| |
| ((ACPI_TYPE_LOCAL_REFERENCE == |
| (*SubObjectList)->Common.Type) && |
| |
| ((*SubObjectList)->Reference.Class == |
| ACPI_REFCLASS_NAME)))) |
| { |
| NameFound = TRUE; |
| } |
| else |
| { |
| /* Look at the next element */ |
| |
| SubObjectList++; |
| } |
| } |
| |
| TempSizeNeeded += (sizeof (ACPI_PCI_ROUTING_TABLE) - 4); |
| |
| /* Was a String type found? */ |
| |
| if (NameFound) |
| { |
| if ((*SubObjectList)->Common.Type == ACPI_TYPE_STRING) |
| { |
| /* |
| * The length String.Length field does not include the |
| * terminating NULL, add 1 |
| */ |
| TempSizeNeeded += ((ACPI_SIZE) |
| (*SubObjectList)->String.Length + 1); |
| } |
| else |
| { |
| TempSizeNeeded += AcpiNsGetPathnameLength ( |
| (*SubObjectList)->Reference.Node); |
| } |
| } |
| else |
| { |
| /* |
| * If no name was found, then this is a NULL, which is |
| * translated as a UINT32 zero. |
| */ |
| TempSizeNeeded += sizeof (UINT32); |
| } |
| |
| /* Round up the size since each element must be aligned */ |
| |
| TempSizeNeeded = ACPI_ROUND_UP_TO_64BIT (TempSizeNeeded); |
| |
| /* Point to the next ACPI_OPERAND_OBJECT */ |
| |
| TopObjectList++; |
| } |
| |
| /* |
| * Add an extra element to the end of the list, essentially a |
| * NULL terminator |
| */ |
| *BufferSizeNeeded = TempSizeNeeded + sizeof (ACPI_PCI_ROUTING_TABLE); |
| return_ACPI_STATUS (AE_OK); |
| } |