rslist.c revision 186507a7cf6e4b4155e9ef89631777a96633ac0e
/*******************************************************************************
*
* Module Name: rslist - Linked list utilities
* $Revision: 1.45 $
*
******************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2005, 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
* 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
* 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
* compliance with all laws, regulations, orders, or other restrictions of the
* U.S. Export Administration Regulations. Licensee agrees that neither it nor
* 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 __RSLIST_C__
#include "acpi.h"
#include "acresrc.h"
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME ("rslist")
/* Local prototypes */
static ACPI_GET_RESOURCE_HANDLER
static ACPI_STATUS
AML_RESOURCE *Aml);
/*******************************************************************************
*
* FUNCTION: AcpiRsValidateResourceLength
*
* PARAMETERS: Aml - Pointer to the AML resource descriptor
*
* RETURN: Status - AE_OK if the resource length appears valid
*
* DESCRIPTION: Validate the ResourceLength. Fixed-length descriptors must
* have the exact length; variable-length descriptors must be
* at least as long as the minimum. Certain Small descriptors
* can vary in size by at most one byte.
*
******************************************************************************/
static ACPI_STATUS
{
/* Get the size and type info about this resource descriptor */
if (!ResourceInfo)
{
return (AE_AML_INVALID_RESOURCE_TYPE);
}
/* Validate based upon the type of resource, fixed length or variable */
{
/* Fixed length resource, length must match exactly */
{
return (AE_AML_BAD_RESOURCE_LENGTH);
}
}
{
/* Variable length resource, must be at least the minimum */
{
return (AE_AML_BAD_RESOURCE_LENGTH);
}
}
else
{
/* Small variable length resource, allowed to be (Min) or (Min-1) */
if ((ResourceLength > MinimumAmlResourceLength) ||
{
return (AE_AML_BAD_RESOURCE_LENGTH);
}
}
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: AcpiRsGetResourceHandler
*
* PARAMETERS: ResourceType - Byte 0 of a resource descriptor
*
* RETURN: Pointer to the resource conversion handler
*
* a resource descriptor.
*
******************************************************************************/
static ACPI_GET_RESOURCE_HANDLER
{
/* Determine if this is a small or large resource */
{
/* Large Resource Type -- bits 6:0 contain the name */
{
return (NULL);
}
return (AcpiGbl_LgGetResourceDispatch [
}
else
{
/* Small Resource Type -- bits 6:3 contain the name */
return (AcpiGbl_SmGetResourceDispatch [
}
}
/*******************************************************************************
*
* FUNCTION: AcpiRsConvertAmlToResources
*
* PARAMETERS: AmlBuffer - Pointer to the resource byte stream
* AmlBufferLength - Length of AmlBuffer
* OutputBuffer - Pointer to the buffer that will
* contain the output structures
*
* RETURN: Status
*
* DESCRIPTION: Takes the resource byte stream and parses it, creating a
* linked list of resources in the caller's output buffer
*
******************************************************************************/
{
ACPI_SIZE BytesParsed = 0;
ACPI_FUNCTION_TRACE ("RsConvertAmlToResources");
/* Loop until end-of-buffer or an EndTag is found */
while (BytesParsed < AmlBufferLength)
{
/* Get the handler associated with this Descriptor Type */
if (!Handler)
{
/* No handler indicates invalid resource type */
}
/*
* Perform limited validation of the resource length, based upon
* what we know about the resource type
*/
if (ACPI_FAILURE (Status))
{
}
/* Convert a byte stream resource to local resource struct */
if (ACPI_FAILURE (Status))
{
"Could not convert AML resource (type %X) to resource, %s\n",
}
/* Set the aligned length of the new resource descriptor */
/* Normal exit on completion of an EndTag resource descriptor */
{
}
/* Update counter and point to the next input resource */
/* Point to the next structure in the output buffer */
}
/* Completed buffer, but did not find an EndTag resource descriptor */
}
/*******************************************************************************
*
* FUNCTION: AcpiRsConvertResourcesToAml
*
* PARAMETERS: Resource - Pointer to the resource linked list
* AmlSizeNeeded - Calculated size of the byte stream
* needed from calling AcpiRsGetAmlLength()
* The size of the OutputBuffer is
* guaranteed to be >= AmlSizeNeeded
* OutputBuffer - Pointer to the buffer that will
* contain the byte stream
*
* RETURN: Status
*
* DESCRIPTION: Takes the resource linked list and parses it, creating a
* byte stream of resources in the caller's output buffer
*
******************************************************************************/
{
ACPI_FUNCTION_TRACE ("RsConvertResourcesToAml");
/* Convert each resource descriptor in the list */
while (1)
{
/* Validate Resource Descriptor Type before dispatch */
{
"Invalid descriptor type (%X) in resource list\n",
}
/* Perform the conversion per resource type */
if (ACPI_FAILURE (Status))
{
ACPI_REPORT_ERROR (("Could not convert resource (type %X) to AML, %s\n",
}
/* Perform final sanity check on the new AML resource descriptor */
if (ACPI_FAILURE (Status))
{
}
/* Check for end-of-list, normal exit */
{
/* An End Tag indicates the end of the input Resource Template */
}
/* Extract the total length of the new descriptor */
/* Set the AmlBuffer to point to the next (output) resource descriptor */
/* Point to the next input resource descriptor */
}
}