534 lines
20 KiB
C
534 lines
20 KiB
C
/*******************************************************************************
|
|
*
|
|
* Module Name: rscreate - Create resource lists/tables
|
|
*
|
|
******************************************************************************/
|
|
|
|
/******************************************************************************
|
|
*
|
|
* 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 __RSCREATE_C__
|
|
|
|
#include "acpi.h"
|
|
#include "accommon.h"
|
|
#include "acresrc.h"
|
|
#include "acnamesp.h"
|
|
|
|
#define _COMPONENT ACPI_RESOURCES
|
|
ACPI_MODULE_NAME ("rscreate")
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsCreateResourceList
|
|
*
|
|
* PARAMETERS: AmlBuffer - Pointer to the resource byte stream
|
|
* OutputBuffer - Pointer to the user's buffer
|
|
*
|
|
* RETURN: Status: AE_OK if okay, else a valid ACPI_STATUS code
|
|
* If OutputBuffer is not large enough, OutputBufferLength
|
|
* indicates how large OutputBuffer should be, else it
|
|
* indicates how may UINT8 elements of OutputBuffer are valid.
|
|
*
|
|
* DESCRIPTION: Takes the byte stream returned from a _CRS, _PRS control method
|
|
* execution and parses the stream to create a linked list
|
|
* of device resources.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRsCreateResourceList (
|
|
ACPI_OPERAND_OBJECT *AmlBuffer,
|
|
ACPI_BUFFER *OutputBuffer)
|
|
{
|
|
|
|
ACPI_STATUS Status;
|
|
UINT8 *AmlStart;
|
|
ACPI_SIZE ListSizeNeeded = 0;
|
|
UINT32 AmlBufferLength;
|
|
void *Resource;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (RsCreateResourceList);
|
|
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "AmlBuffer = %p\n",
|
|
AmlBuffer));
|
|
|
|
/* Params already validated, so we don't re-validate here */
|
|
|
|
AmlBufferLength = AmlBuffer->Buffer.Length;
|
|
AmlStart = AmlBuffer->Buffer.Pointer;
|
|
|
|
/*
|
|
* Pass the AmlBuffer into a module that can calculate
|
|
* the buffer size needed for the linked list
|
|
*/
|
|
Status = AcpiRsGetListLength (AmlStart, AmlBufferLength,
|
|
&ListSizeNeeded);
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Status=%X ListSizeNeeded=%X\n",
|
|
Status, (UINT32) ListSizeNeeded));
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Validate/Allocate/Clear caller buffer */
|
|
|
|
Status = AcpiUtInitializeBuffer (OutputBuffer, ListSizeNeeded);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Do the conversion */
|
|
|
|
Resource = OutputBuffer->Pointer;
|
|
Status = AcpiUtWalkAmlResources (AmlStart, AmlBufferLength,
|
|
AcpiRsConvertAmlToResources, &Resource);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
|
|
OutputBuffer->Pointer, (UINT32) OutputBuffer->Length));
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsCreatePciRoutingTable
|
|
*
|
|
* PARAMETERS: PackageObject - Pointer to an ACPI_OPERAND_OBJECT
|
|
* package
|
|
* OutputBuffer - Pointer to the user's buffer
|
|
*
|
|
* RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code.
|
|
* If the OutputBuffer is too small, the error will be
|
|
* AE_BUFFER_OVERFLOW and OutputBuffer->Length will point
|
|
* to the size buffer needed.
|
|
*
|
|
* DESCRIPTION: Takes the ACPI_OPERAND_OBJECT package and creates a
|
|
* linked list of PCI interrupt descriptions
|
|
*
|
|
* NOTE: It is the caller's responsibility to ensure that the start of the
|
|
* output buffer is aligned properly (if necessary).
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRsCreatePciRoutingTable (
|
|
ACPI_OPERAND_OBJECT *PackageObject,
|
|
ACPI_BUFFER *OutputBuffer)
|
|
{
|
|
UINT8 *Buffer;
|
|
ACPI_OPERAND_OBJECT **TopObjectList;
|
|
ACPI_OPERAND_OBJECT **SubObjectList;
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_SIZE BufferSizeNeeded = 0;
|
|
UINT32 NumberOfElements;
|
|
UINT32 Index;
|
|
ACPI_PCI_ROUTING_TABLE *UserPrt;
|
|
ACPI_NAMESPACE_NODE *Node;
|
|
ACPI_STATUS Status;
|
|
ACPI_BUFFER PathBuffer;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (RsCreatePciRoutingTable);
|
|
|
|
|
|
/* Params already validated, so we don't re-validate here */
|
|
|
|
/* Get the required buffer length */
|
|
|
|
Status = AcpiRsGetPciRoutingTableLength (PackageObject,
|
|
&BufferSizeNeeded);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "BufferSizeNeeded = %X\n",
|
|
(UINT32) BufferSizeNeeded));
|
|
|
|
/* Validate/Allocate/Clear caller buffer */
|
|
|
|
Status = AcpiUtInitializeBuffer (OutputBuffer, BufferSizeNeeded);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/*
|
|
* Loop through the ACPI_INTERNAL_OBJECTS - Each object should be a
|
|
* package that in turn contains an UINT64 Address, a UINT8 Pin,
|
|
* a Name, and a UINT8 SourceIndex.
|
|
*/
|
|
TopObjectList = PackageObject->Package.Elements;
|
|
NumberOfElements = PackageObject->Package.Count;
|
|
Buffer = OutputBuffer->Pointer;
|
|
UserPrt = ACPI_CAST_PTR (ACPI_PCI_ROUTING_TABLE, Buffer);
|
|
|
|
for (Index = 0; Index < NumberOfElements; Index++)
|
|
{
|
|
/*
|
|
* Point UserPrt past this current structure
|
|
*
|
|
* NOTE: On the first iteration, UserPrt->Length will
|
|
* be zero because we cleared the return buffer earlier
|
|
*/
|
|
Buffer += UserPrt->Length;
|
|
UserPrt = ACPI_CAST_PTR (ACPI_PCI_ROUTING_TABLE, Buffer);
|
|
|
|
/*
|
|
* Fill in the Length field with the information we have at this point.
|
|
* The minus four is to subtract the size of the UINT8 Source[4] member
|
|
* because it is added below.
|
|
*/
|
|
UserPrt->Length = (sizeof (ACPI_PCI_ROUTING_TABLE) - 4);
|
|
|
|
/* Each element of the top-level package must also be a package */
|
|
|
|
if ((*TopObjectList)->Common.Type != ACPI_TYPE_PACKAGE)
|
|
{
|
|
ACPI_ERROR ((AE_INFO,
|
|
"(PRT[%u]) Need sub-package, found %s",
|
|
Index, AcpiUtGetObjectTypeName (*TopObjectList)));
|
|
return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
|
|
}
|
|
|
|
/* Each sub-package must be of length 4 */
|
|
|
|
if ((*TopObjectList)->Package.Count != 4)
|
|
{
|
|
ACPI_ERROR ((AE_INFO,
|
|
"(PRT[%u]) Need package of length 4, found length %u",
|
|
Index, (*TopObjectList)->Package.Count));
|
|
return_ACPI_STATUS (AE_AML_PACKAGE_LIMIT);
|
|
}
|
|
|
|
/*
|
|
* Dereference the sub-package.
|
|
* The SubObjectList will now point to an array of the four IRQ
|
|
* elements: [Address, Pin, Source, SourceIndex]
|
|
*/
|
|
SubObjectList = (*TopObjectList)->Package.Elements;
|
|
|
|
/* 1) First subobject: Dereference the PRT.Address */
|
|
|
|
ObjDesc = SubObjectList[0];
|
|
if (ObjDesc->Common.Type != ACPI_TYPE_INTEGER)
|
|
{
|
|
ACPI_ERROR ((AE_INFO, "(PRT[%u].Address) Need Integer, found %s",
|
|
Index, AcpiUtGetObjectTypeName (ObjDesc)));
|
|
return_ACPI_STATUS (AE_BAD_DATA);
|
|
}
|
|
|
|
UserPrt->Address = ObjDesc->Integer.Value;
|
|
|
|
/* 2) Second subobject: Dereference the PRT.Pin */
|
|
|
|
ObjDesc = SubObjectList[1];
|
|
if (ObjDesc->Common.Type != ACPI_TYPE_INTEGER)
|
|
{
|
|
ACPI_ERROR ((AE_INFO, "(PRT[%u].Pin) Need Integer, found %s",
|
|
Index, AcpiUtGetObjectTypeName (ObjDesc)));
|
|
return_ACPI_STATUS (AE_BAD_DATA);
|
|
}
|
|
|
|
UserPrt->Pin = (UINT32) ObjDesc->Integer.Value;
|
|
|
|
/*
|
|
* If the BIOS has erroneously reversed the _PRT SourceName (index 2)
|
|
* and the SourceIndex (index 3), fix it. _PRT is important enough to
|
|
* workaround this BIOS error. This also provides compatibility with
|
|
* other ACPI implementations.
|
|
*/
|
|
ObjDesc = SubObjectList[3];
|
|
if (!ObjDesc || (ObjDesc->Common.Type != ACPI_TYPE_INTEGER))
|
|
{
|
|
SubObjectList[3] = SubObjectList[2];
|
|
SubObjectList[2] = ObjDesc;
|
|
|
|
ACPI_WARNING ((AE_INFO,
|
|
"(PRT[%X].Source) SourceName and SourceIndex are reversed, fixed",
|
|
Index));
|
|
}
|
|
|
|
/*
|
|
* 3) Third subobject: Dereference the PRT.SourceName
|
|
* The name may be unresolved (slack mode), so allow a null object
|
|
*/
|
|
ObjDesc = SubObjectList[2];
|
|
if (ObjDesc)
|
|
{
|
|
switch (ObjDesc->Common.Type)
|
|
{
|
|
case ACPI_TYPE_LOCAL_REFERENCE:
|
|
|
|
if (ObjDesc->Reference.Class != ACPI_REFCLASS_NAME)
|
|
{
|
|
ACPI_ERROR ((AE_INFO,
|
|
"(PRT[%u].Source) Need name, found Reference Class 0x%X",
|
|
Index, ObjDesc->Reference.Class));
|
|
return_ACPI_STATUS (AE_BAD_DATA);
|
|
}
|
|
|
|
Node = ObjDesc->Reference.Node;
|
|
|
|
/* Use *remaining* length of the buffer as max for pathname */
|
|
|
|
PathBuffer.Length = OutputBuffer->Length -
|
|
(UINT32) ((UINT8 *) UserPrt->Source -
|
|
(UINT8 *) OutputBuffer->Pointer);
|
|
PathBuffer.Pointer = UserPrt->Source;
|
|
|
|
Status = AcpiNsHandleToPathname ((ACPI_HANDLE) Node, &PathBuffer);
|
|
|
|
/* +1 to include null terminator */
|
|
|
|
UserPrt->Length += (UINT32) ACPI_STRLEN (UserPrt->Source) + 1;
|
|
break;
|
|
|
|
|
|
case ACPI_TYPE_STRING:
|
|
|
|
ACPI_STRCPY (UserPrt->Source, ObjDesc->String.Pointer);
|
|
|
|
/*
|
|
* Add to the Length field the length of the string
|
|
* (add 1 for terminator)
|
|
*/
|
|
UserPrt->Length += ObjDesc->String.Length + 1;
|
|
break;
|
|
|
|
|
|
case ACPI_TYPE_INTEGER:
|
|
/*
|
|
* If this is a number, then the Source Name is NULL, since the
|
|
* entire buffer was zeroed out, we can leave this alone.
|
|
*
|
|
* Add to the Length field the length of the UINT32 NULL
|
|
*/
|
|
UserPrt->Length += sizeof (UINT32);
|
|
break;
|
|
|
|
|
|
default:
|
|
|
|
ACPI_ERROR ((AE_INFO,
|
|
"(PRT[%u].Source) Need Ref/String/Integer, found %s",
|
|
Index, AcpiUtGetObjectTypeName (ObjDesc)));
|
|
return_ACPI_STATUS (AE_BAD_DATA);
|
|
}
|
|
}
|
|
|
|
/* Now align the current length */
|
|
|
|
UserPrt->Length = (UINT32) ACPI_ROUND_UP_TO_64BIT (UserPrt->Length);
|
|
|
|
/* 4) Fourth subobject: Dereference the PRT.SourceIndex */
|
|
|
|
ObjDesc = SubObjectList[3];
|
|
if (ObjDesc->Common.Type != ACPI_TYPE_INTEGER)
|
|
{
|
|
ACPI_ERROR ((AE_INFO,
|
|
"(PRT[%u].SourceIndex) Need Integer, found %s",
|
|
Index, AcpiUtGetObjectTypeName (ObjDesc)));
|
|
return_ACPI_STATUS (AE_BAD_DATA);
|
|
}
|
|
|
|
UserPrt->SourceIndex = (UINT32) ObjDesc->Integer.Value;
|
|
|
|
/* Point to the next ACPI_OPERAND_OBJECT in the top level package */
|
|
|
|
TopObjectList++;
|
|
}
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
|
|
OutputBuffer->Pointer, (UINT32) OutputBuffer->Length));
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsCreateAmlResources
|
|
*
|
|
* PARAMETERS: LinkedListBuffer - Pointer to the resource linked list
|
|
* OutputBuffer - Pointer to the user's buffer
|
|
*
|
|
* RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code.
|
|
* If the OutputBuffer is too small, the error will be
|
|
* AE_BUFFER_OVERFLOW and OutputBuffer->Length will point
|
|
* to the size buffer needed.
|
|
*
|
|
* DESCRIPTION: Takes the linked list of device resources and
|
|
* creates a bytestream to be used as input for the
|
|
* _SRS control method.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRsCreateAmlResources (
|
|
ACPI_RESOURCE *LinkedListBuffer,
|
|
ACPI_BUFFER *OutputBuffer)
|
|
{
|
|
ACPI_STATUS Status;
|
|
ACPI_SIZE AmlSizeNeeded = 0;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (RsCreateAmlResources);
|
|
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "LinkedListBuffer = %p\n",
|
|
LinkedListBuffer));
|
|
|
|
/*
|
|
* Params already validated, so we don't re-validate here
|
|
*
|
|
* Pass the LinkedListBuffer into a module that calculates
|
|
* the buffer size needed for the byte stream.
|
|
*/
|
|
Status = AcpiRsGetAmlLength (LinkedListBuffer,
|
|
&AmlSizeNeeded);
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "AmlSizeNeeded=%X, %s\n",
|
|
(UINT32) AmlSizeNeeded, AcpiFormatException (Status)));
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Validate/Allocate/Clear caller buffer */
|
|
|
|
Status = AcpiUtInitializeBuffer (OutputBuffer, AmlSizeNeeded);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Do the conversion */
|
|
|
|
Status = AcpiRsConvertResourcesToAml (LinkedListBuffer, AmlSizeNeeded,
|
|
OutputBuffer->Pointer);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
|
|
OutputBuffer->Pointer, (UINT32) OutputBuffer->Length));
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|