mirror of
https://github.com/reactos/reactos.git
synced 2024-09-10 04:42:00 +00:00
871 lines
25 KiB
C
871 lines
25 KiB
C
/*******************************************************************************
|
|
*
|
|
* Module Name: rsutils - Utilities for the resource manager
|
|
*
|
|
******************************************************************************/
|
|
|
|
/*
|
|
* Copyright (C) 2000 - 2019, Intel Corp.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions, and the following disclaimer,
|
|
* without modification.
|
|
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
|
|
* substantially similar to the "NO WARRANTY" disclaimer below
|
|
* ("Disclaimer") and any redistribution must be conditioned upon
|
|
* including a substantially similar Disclaimer requirement for further
|
|
* binary redistribution.
|
|
* 3. Neither the names of the above-listed copyright holders nor the names
|
|
* of any contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* Alternatively, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL") version 2 as published by the Free
|
|
* Software Foundation.
|
|
*
|
|
* NO WARRANTY
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
|
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGES.
|
|
*/
|
|
|
|
#include "acpi.h"
|
|
#include "accommon.h"
|
|
#include "acnamesp.h"
|
|
#include "acresrc.h"
|
|
|
|
|
|
#define _COMPONENT ACPI_RESOURCES
|
|
ACPI_MODULE_NAME ("rsutils")
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsDecodeBitmask
|
|
*
|
|
* PARAMETERS: Mask - Bitmask to decode
|
|
* List - Where the converted list is returned
|
|
*
|
|
* RETURN: Count of bits set (length of list)
|
|
*
|
|
* DESCRIPTION: Convert a bit mask into a list of values
|
|
*
|
|
******************************************************************************/
|
|
|
|
UINT8
|
|
AcpiRsDecodeBitmask (
|
|
UINT16 Mask,
|
|
UINT8 *List)
|
|
{
|
|
UINT8 i;
|
|
UINT8 BitCount;
|
|
|
|
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
/* Decode the mask bits */
|
|
|
|
for (i = 0, BitCount = 0; Mask; i++)
|
|
{
|
|
if (Mask & 0x0001)
|
|
{
|
|
List[BitCount] = i;
|
|
BitCount++;
|
|
}
|
|
|
|
Mask >>= 1;
|
|
}
|
|
|
|
return (BitCount);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsEncodeBitmask
|
|
*
|
|
* PARAMETERS: List - List of values to encode
|
|
* Count - Length of list
|
|
*
|
|
* RETURN: Encoded bitmask
|
|
*
|
|
* DESCRIPTION: Convert a list of values to an encoded bitmask
|
|
*
|
|
******************************************************************************/
|
|
|
|
UINT16
|
|
AcpiRsEncodeBitmask (
|
|
UINT8 *List,
|
|
UINT8 Count)
|
|
{
|
|
UINT32 i;
|
|
UINT16 Mask;
|
|
|
|
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
/* Encode the list into a single bitmask */
|
|
|
|
for (i = 0, Mask = 0; i < Count; i++)
|
|
{
|
|
Mask |= (0x1 << List[i]);
|
|
}
|
|
|
|
return (Mask);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsMoveData
|
|
*
|
|
* PARAMETERS: Destination - Pointer to the destination descriptor
|
|
* Source - Pointer to the source descriptor
|
|
* ItemCount - How many items to move
|
|
* MoveType - Byte width
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Move multiple data items from one descriptor to another. Handles
|
|
* alignment issues and endian issues if necessary, as configured
|
|
* via the ACPI_MOVE_* macros. (This is why a memcpy is not used)
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiRsMoveData (
|
|
void *Destination,
|
|
void *Source,
|
|
UINT16 ItemCount,
|
|
UINT8 MoveType)
|
|
{
|
|
UINT32 i;
|
|
|
|
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
/* One move per item */
|
|
|
|
for (i = 0; i < ItemCount; i++)
|
|
{
|
|
switch (MoveType)
|
|
{
|
|
/*
|
|
* For the 8-bit case, we can perform the move all at once
|
|
* since there are no alignment or endian issues
|
|
*/
|
|
case ACPI_RSC_MOVE8:
|
|
case ACPI_RSC_MOVE_GPIO_RES:
|
|
case ACPI_RSC_MOVE_SERIAL_VEN:
|
|
case ACPI_RSC_MOVE_SERIAL_RES:
|
|
|
|
memcpy (Destination, Source, ItemCount);
|
|
return;
|
|
|
|
/*
|
|
* 16-, 32-, and 64-bit cases must use the move macros that perform
|
|
* endian conversion and/or accommodate hardware that cannot perform
|
|
* misaligned memory transfers
|
|
*/
|
|
case ACPI_RSC_MOVE16:
|
|
case ACPI_RSC_MOVE_GPIO_PIN:
|
|
|
|
ACPI_MOVE_16_TO_16 (
|
|
&ACPI_CAST_PTR (UINT16, Destination)[i],
|
|
&ACPI_CAST_PTR (UINT16, Source)[i]);
|
|
break;
|
|
|
|
case ACPI_RSC_MOVE32:
|
|
|
|
ACPI_MOVE_32_TO_32 (
|
|
&ACPI_CAST_PTR (UINT32, Destination)[i],
|
|
&ACPI_CAST_PTR (UINT32, Source)[i]);
|
|
break;
|
|
|
|
case ACPI_RSC_MOVE64:
|
|
|
|
ACPI_MOVE_64_TO_64 (
|
|
&ACPI_CAST_PTR (UINT64, Destination)[i],
|
|
&ACPI_CAST_PTR (UINT64, Source)[i]);
|
|
break;
|
|
|
|
default:
|
|
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsSetResourceLength
|
|
*
|
|
* PARAMETERS: TotalLength - Length of the AML descriptor, including
|
|
* the header and length fields.
|
|
* Aml - Pointer to the raw AML descriptor
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Set the ResourceLength field of an AML
|
|
* resource descriptor, both Large and Small descriptors are
|
|
* supported automatically. Note: Descriptor Type field must
|
|
* be valid.
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiRsSetResourceLength (
|
|
ACPI_RSDESC_SIZE TotalLength,
|
|
AML_RESOURCE *Aml)
|
|
{
|
|
ACPI_RS_LENGTH ResourceLength;
|
|
|
|
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
/* Length is the total descriptor length minus the header length */
|
|
|
|
ResourceLength = (ACPI_RS_LENGTH)
|
|
(TotalLength - AcpiUtGetResourceHeaderLength (Aml));
|
|
|
|
/* Length is stored differently for large and small descriptors */
|
|
|
|
if (Aml->SmallHeader.DescriptorType & ACPI_RESOURCE_NAME_LARGE)
|
|
{
|
|
/* Large descriptor -- bytes 1-2 contain the 16-bit length */
|
|
|
|
ACPI_MOVE_16_TO_16 (
|
|
&Aml->LargeHeader.ResourceLength, &ResourceLength);
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Small descriptor -- bits 2:0 of byte 0 contain the length
|
|
* Clear any existing length, preserving descriptor type bits
|
|
*/
|
|
Aml->SmallHeader.DescriptorType = (UINT8)
|
|
((Aml->SmallHeader.DescriptorType &
|
|
~ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK)
|
|
| ResourceLength);
|
|
}
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsSetResourceHeader
|
|
*
|
|
* PARAMETERS: DescriptorType - Byte to be inserted as the type
|
|
* TotalLength - Length of the AML descriptor, including
|
|
* the header and length fields.
|
|
* Aml - Pointer to the raw AML descriptor
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Set the DescriptorType and ResourceLength fields of an AML
|
|
* resource descriptor, both Large and Small descriptors are
|
|
* supported automatically
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiRsSetResourceHeader (
|
|
UINT8 DescriptorType,
|
|
ACPI_RSDESC_SIZE TotalLength,
|
|
AML_RESOURCE *Aml)
|
|
{
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
/* Set the Resource Type */
|
|
|
|
Aml->SmallHeader.DescriptorType = DescriptorType;
|
|
|
|
/* Set the Resource Length */
|
|
|
|
AcpiRsSetResourceLength (TotalLength, Aml);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsStrcpy
|
|
*
|
|
* PARAMETERS: Destination - Pointer to the destination string
|
|
* Source - Pointer to the source string
|
|
*
|
|
* RETURN: String length, including NULL terminator
|
|
*
|
|
* DESCRIPTION: Local string copy that returns the string length, saving a
|
|
* strcpy followed by a strlen.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static UINT16
|
|
AcpiRsStrcpy (
|
|
char *Destination,
|
|
char *Source)
|
|
{
|
|
UINT16 i;
|
|
|
|
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
for (i = 0; Source[i]; i++)
|
|
{
|
|
Destination[i] = Source[i];
|
|
}
|
|
|
|
Destination[i] = 0;
|
|
|
|
/* Return string length including the NULL terminator */
|
|
|
|
return ((UINT16) (i + 1));
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsGetResourceSource
|
|
*
|
|
* PARAMETERS: ResourceLength - Length field of the descriptor
|
|
* MinimumLength - Minimum length of the descriptor (minus
|
|
* any optional fields)
|
|
* ResourceSource - Where the ResourceSource is returned
|
|
* Aml - Pointer to the raw AML descriptor
|
|
* StringPtr - (optional) where to store the actual
|
|
* ResourceSource string
|
|
*
|
|
* RETURN: Length of the string plus NULL terminator, rounded up to native
|
|
* word boundary
|
|
*
|
|
* DESCRIPTION: Copy the optional ResourceSource data from a raw AML descriptor
|
|
* to an internal resource descriptor
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_RS_LENGTH
|
|
AcpiRsGetResourceSource (
|
|
ACPI_RS_LENGTH ResourceLength,
|
|
ACPI_RS_LENGTH MinimumLength,
|
|
ACPI_RESOURCE_SOURCE *ResourceSource,
|
|
AML_RESOURCE *Aml,
|
|
char *StringPtr)
|
|
{
|
|
ACPI_RSDESC_SIZE TotalLength;
|
|
UINT8 *AmlResourceSource;
|
|
|
|
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
TotalLength = ResourceLength + sizeof (AML_RESOURCE_LARGE_HEADER);
|
|
AmlResourceSource = ACPI_ADD_PTR (UINT8, Aml, MinimumLength);
|
|
|
|
/*
|
|
* ResourceSource is present if the length of the descriptor is longer
|
|
* than the minimum length.
|
|
*
|
|
* Note: Some resource descriptors will have an additional null, so
|
|
* we add 1 to the minimum length.
|
|
*/
|
|
if (TotalLength > (ACPI_RSDESC_SIZE) (MinimumLength + 1))
|
|
{
|
|
/* Get the ResourceSourceIndex */
|
|
|
|
ResourceSource->Index = AmlResourceSource[0];
|
|
|
|
ResourceSource->StringPtr = StringPtr;
|
|
if (!StringPtr)
|
|
{
|
|
/*
|
|
* String destination pointer is not specified; Set the String
|
|
* pointer to the end of the current ResourceSource structure.
|
|
*/
|
|
ResourceSource->StringPtr = ACPI_ADD_PTR (
|
|
char, ResourceSource, sizeof (ACPI_RESOURCE_SOURCE));
|
|
}
|
|
|
|
/*
|
|
* In order for the Resource length to be a multiple of the native
|
|
* word, calculate the length of the string (+1 for NULL terminator)
|
|
* and expand to the next word multiple.
|
|
*
|
|
* Zero the entire area of the buffer.
|
|
*/
|
|
TotalLength = (UINT32) strlen (
|
|
ACPI_CAST_PTR (char, &AmlResourceSource[1])) + 1;
|
|
|
|
TotalLength = (UINT32) ACPI_ROUND_UP_TO_NATIVE_WORD (TotalLength);
|
|
|
|
memset (ResourceSource->StringPtr, 0, TotalLength);
|
|
|
|
/* Copy the ResourceSource string to the destination */
|
|
|
|
ResourceSource->StringLength = AcpiRsStrcpy (
|
|
ResourceSource->StringPtr,
|
|
ACPI_CAST_PTR (char, &AmlResourceSource[1]));
|
|
|
|
return ((ACPI_RS_LENGTH) TotalLength);
|
|
}
|
|
|
|
/* ResourceSource is not present */
|
|
|
|
ResourceSource->Index = 0;
|
|
ResourceSource->StringLength = 0;
|
|
ResourceSource->StringPtr = NULL;
|
|
return (0);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsSetResourceSource
|
|
*
|
|
* PARAMETERS: Aml - Pointer to the raw AML descriptor
|
|
* MinimumLength - Minimum length of the descriptor (minus
|
|
* any optional fields)
|
|
* ResourceSource - Internal ResourceSource
|
|
|
|
*
|
|
* RETURN: Total length of the AML descriptor
|
|
*
|
|
* DESCRIPTION: Convert an optional ResourceSource from internal format to a
|
|
* raw AML resource descriptor
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_RSDESC_SIZE
|
|
AcpiRsSetResourceSource (
|
|
AML_RESOURCE *Aml,
|
|
ACPI_RS_LENGTH MinimumLength,
|
|
ACPI_RESOURCE_SOURCE *ResourceSource)
|
|
{
|
|
UINT8 *AmlResourceSource;
|
|
ACPI_RSDESC_SIZE DescriptorLength;
|
|
|
|
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
DescriptorLength = MinimumLength;
|
|
|
|
/* Non-zero string length indicates presence of a ResourceSource */
|
|
|
|
if (ResourceSource->StringLength)
|
|
{
|
|
/* Point to the end of the AML descriptor */
|
|
|
|
AmlResourceSource = ACPI_ADD_PTR (UINT8, Aml, MinimumLength);
|
|
|
|
/* Copy the ResourceSourceIndex */
|
|
|
|
AmlResourceSource[0] = (UINT8) ResourceSource->Index;
|
|
|
|
/* Copy the ResourceSource string */
|
|
|
|
strcpy (ACPI_CAST_PTR (char, &AmlResourceSource[1]),
|
|
ResourceSource->StringPtr);
|
|
|
|
/*
|
|
* Add the length of the string (+ 1 for null terminator) to the
|
|
* final descriptor length
|
|
*/
|
|
DescriptorLength += ((ACPI_RSDESC_SIZE)
|
|
ResourceSource->StringLength + 1);
|
|
}
|
|
|
|
/* Return the new total length of the AML descriptor */
|
|
|
|
return (DescriptorLength);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsGetPrtMethodData
|
|
*
|
|
* PARAMETERS: Node - Device node
|
|
* RetBuffer - Pointer to a buffer structure for the
|
|
* results
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: This function is called to get the _PRT value of an object
|
|
* contained in an object specified by the handle passed in
|
|
*
|
|
* If the function fails an appropriate status will be returned
|
|
* and the contents of the callers buffer is undefined.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRsGetPrtMethodData (
|
|
ACPI_NAMESPACE_NODE *Node,
|
|
ACPI_BUFFER *RetBuffer)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (RsGetPrtMethodData);
|
|
|
|
|
|
/* Parameters guaranteed valid by caller */
|
|
|
|
/* Execute the method, no parameters */
|
|
|
|
Status = AcpiUtEvaluateObject (
|
|
Node, METHOD_NAME__PRT, ACPI_BTYPE_PACKAGE, &ObjDesc);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/*
|
|
* Create a resource linked list from the byte stream buffer that comes
|
|
* back from the _CRS method execution.
|
|
*/
|
|
Status = AcpiRsCreatePciRoutingTable (ObjDesc, RetBuffer);
|
|
|
|
/* On exit, we must delete the object returned by EvaluateObject */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsGetCrsMethodData
|
|
*
|
|
* PARAMETERS: Node - Device node
|
|
* RetBuffer - Pointer to a buffer structure for the
|
|
* results
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: This function is called to get the _CRS value of an object
|
|
* contained in an object specified by the handle passed in
|
|
*
|
|
* If the function fails an appropriate status will be returned
|
|
* and the contents of the callers buffer is undefined.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRsGetCrsMethodData (
|
|
ACPI_NAMESPACE_NODE *Node,
|
|
ACPI_BUFFER *RetBuffer)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (RsGetCrsMethodData);
|
|
|
|
|
|
/* Parameters guaranteed valid by caller */
|
|
|
|
/* Execute the method, no parameters */
|
|
|
|
Status = AcpiUtEvaluateObject (
|
|
Node, METHOD_NAME__CRS, ACPI_BTYPE_BUFFER, &ObjDesc);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/*
|
|
* Make the call to create a resource linked list from the
|
|
* byte stream buffer that comes back from the _CRS method
|
|
* execution.
|
|
*/
|
|
Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer);
|
|
|
|
/* On exit, we must delete the object returned by evaluateObject */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsGetPrsMethodData
|
|
*
|
|
* PARAMETERS: Node - Device node
|
|
* RetBuffer - Pointer to a buffer structure for the
|
|
* results
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: This function is called to get the _PRS value of an object
|
|
* contained in an object specified by the handle passed in
|
|
*
|
|
* If the function fails an appropriate status will be returned
|
|
* and the contents of the callers buffer is undefined.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRsGetPrsMethodData (
|
|
ACPI_NAMESPACE_NODE *Node,
|
|
ACPI_BUFFER *RetBuffer)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (RsGetPrsMethodData);
|
|
|
|
|
|
/* Parameters guaranteed valid by caller */
|
|
|
|
/* Execute the method, no parameters */
|
|
|
|
Status = AcpiUtEvaluateObject (
|
|
Node, METHOD_NAME__PRS, ACPI_BTYPE_BUFFER, &ObjDesc);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/*
|
|
* Make the call to create a resource linked list from the
|
|
* byte stream buffer that comes back from the _CRS method
|
|
* execution.
|
|
*/
|
|
Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer);
|
|
|
|
/* On exit, we must delete the object returned by evaluateObject */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsGetAeiMethodData
|
|
*
|
|
* PARAMETERS: Node - Device node
|
|
* RetBuffer - Pointer to a buffer structure for the
|
|
* results
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: This function is called to get the _AEI value of an object
|
|
* contained in an object specified by the handle passed in
|
|
*
|
|
* If the function fails an appropriate status will be returned
|
|
* and the contents of the callers buffer is undefined.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRsGetAeiMethodData (
|
|
ACPI_NAMESPACE_NODE *Node,
|
|
ACPI_BUFFER *RetBuffer)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (RsGetAeiMethodData);
|
|
|
|
|
|
/* Parameters guaranteed valid by caller */
|
|
|
|
/* Execute the method, no parameters */
|
|
|
|
Status = AcpiUtEvaluateObject (
|
|
Node, METHOD_NAME__AEI, ACPI_BTYPE_BUFFER, &ObjDesc);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/*
|
|
* Make the call to create a resource linked list from the
|
|
* byte stream buffer that comes back from the _CRS method
|
|
* execution.
|
|
*/
|
|
Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer);
|
|
|
|
/* On exit, we must delete the object returned by evaluateObject */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsGetMethodData
|
|
*
|
|
* PARAMETERS: Handle - Handle to the containing object
|
|
* Path - Path to method, relative to Handle
|
|
* RetBuffer - Pointer to a buffer structure for the
|
|
* results
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: This function is called to get the _CRS or _PRS value of an
|
|
* object contained in an object specified by the handle passed in
|
|
*
|
|
* If the function fails an appropriate status will be returned
|
|
* and the contents of the callers buffer is undefined.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRsGetMethodData (
|
|
ACPI_HANDLE Handle,
|
|
const char *Path,
|
|
ACPI_BUFFER *RetBuffer)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (RsGetMethodData);
|
|
|
|
|
|
/* Parameters guaranteed valid by caller */
|
|
|
|
/* Execute the method, no parameters */
|
|
|
|
Status = AcpiUtEvaluateObject (
|
|
ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Handle),
|
|
Path, ACPI_BTYPE_BUFFER, &ObjDesc);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/*
|
|
* Make the call to create a resource linked list from the
|
|
* byte stream buffer that comes back from the method
|
|
* execution.
|
|
*/
|
|
Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer);
|
|
|
|
/* On exit, we must delete the object returned by EvaluateObject */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsSetSrsMethodData
|
|
*
|
|
* PARAMETERS: Node - Device node
|
|
* InBuffer - Pointer to a buffer structure of the
|
|
* parameter
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: This function is called to set the _SRS of an object contained
|
|
* in an object specified by the handle passed in
|
|
*
|
|
* If the function fails an appropriate status will be returned
|
|
* and the contents of the callers buffer is undefined.
|
|
*
|
|
* Note: Parameters guaranteed valid by caller
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRsSetSrsMethodData (
|
|
ACPI_NAMESPACE_NODE *Node,
|
|
ACPI_BUFFER *InBuffer)
|
|
{
|
|
ACPI_EVALUATE_INFO *Info;
|
|
ACPI_OPERAND_OBJECT *Args[2];
|
|
ACPI_STATUS Status;
|
|
ACPI_BUFFER Buffer;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (RsSetSrsMethodData);
|
|
|
|
|
|
/* Allocate and initialize the evaluation information block */
|
|
|
|
Info = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO));
|
|
if (!Info)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
Info->PrefixNode = Node;
|
|
Info->RelativePathname = METHOD_NAME__SRS;
|
|
Info->Parameters = Args;
|
|
Info->Flags = ACPI_IGNORE_RETURN_VALUE;
|
|
|
|
/*
|
|
* The InBuffer parameter will point to a linked list of
|
|
* resource parameters. It needs to be formatted into a
|
|
* byte stream to be sent in as an input parameter to _SRS
|
|
*
|
|
* Convert the linked list into a byte stream
|
|
*/
|
|
Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER;
|
|
Status = AcpiRsCreateAmlResources (InBuffer, &Buffer);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
goto Cleanup;
|
|
}
|
|
|
|
/* Create and initialize the method parameter object */
|
|
|
|
Args[0] = AcpiUtCreateInternalObject (ACPI_TYPE_BUFFER);
|
|
if (!Args[0])
|
|
{
|
|
/*
|
|
* Must free the buffer allocated above (otherwise it is freed
|
|
* later)
|
|
*/
|
|
ACPI_FREE (Buffer.Pointer);
|
|
Status = AE_NO_MEMORY;
|
|
goto Cleanup;
|
|
}
|
|
|
|
Args[0]->Buffer.Length = (UINT32) Buffer.Length;
|
|
Args[0]->Buffer.Pointer = Buffer.Pointer;
|
|
Args[0]->Common.Flags = AOPOBJ_DATA_VALID;
|
|
Args[1] = NULL;
|
|
|
|
/* Execute the method, no return value is expected */
|
|
|
|
Status = AcpiNsEvaluate (Info);
|
|
|
|
/* Clean up and return the status from AcpiNsEvaluate */
|
|
|
|
AcpiUtRemoveReference (Args[0]);
|
|
|
|
Cleanup:
|
|
ACPI_FREE (Info);
|
|
return_ACPI_STATUS (Status);
|
|
}
|