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714 lines
23 KiB
C
714 lines
23 KiB
C
/*******************************************************************************
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*
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* Module Name: rsxface - Public interfaces to the resource manager
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* $Revision: 1.48 $
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*
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******************************************************************************/
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/******************************************************************************
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*
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* 1. Copyright Notice
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*
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* Some or all of this work - Copyright (c) 1999 - 2007, Intel Corp.
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* All rights reserved.
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*
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* 2. License
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*
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* 2.1. This is your license from Intel Corp. under its intellectual property
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* rights. You may have additional license terms from the party that provided
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* you this software, covering your right to use that party's intellectual
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* property rights.
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*
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* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
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* copy of the source code appearing in this file ("Covered Code") an
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* irrevocable, perpetual, worldwide license under Intel's copyrights in the
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* base code distributed originally by Intel ("Original Intel Code") to copy,
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* make derivatives, distribute, use and display any portion of the Covered
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* Code in any form, with the right to sublicense such rights; and
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*
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* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
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* license (with the right to sublicense), under only those claims of Intel
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* patents that are infringed by the Original Intel Code, to make, use, sell,
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* offer to sell, and import the Covered Code and derivative works thereof
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* solely to the minimum extent necessary to exercise the above copyright
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* license, and in no event shall the patent license extend to any additions
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* to or modifications of the Original Intel Code. No other license or right
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* is granted directly or by implication, estoppel or otherwise;
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*
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* The above copyright and patent license is granted only if the following
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* conditions are met:
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*
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* 3. Conditions
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*
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* 3.1. Redistribution of Source with Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification with rights to further distribute source must include
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* the above Copyright Notice, the above License, this list of Conditions,
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* and the following Disclaimer and Export Compliance provision. In addition,
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* Licensee must cause all Covered Code to which Licensee contributes to
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* contain a file documenting the changes Licensee made to create that Covered
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* Code and the date of any change. Licensee must include in that file the
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* documentation of any changes made by any predecessor Licensee. Licensee
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* must include a prominent statement that the modification is derived,
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* directly or indirectly, from Original Intel Code.
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*
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* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification without rights to further distribute source must
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* include the following Disclaimer and Export Compliance provision in the
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* documentation and/or other materials provided with distribution. In
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* addition, Licensee may not authorize further sublicense of source of any
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* portion of the Covered Code, and must include terms to the effect that the
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* license from Licensee to its licensee is limited to the intellectual
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* property embodied in the software Licensee provides to its licensee, and
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* not to intellectual property embodied in modifications its licensee may
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* make.
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*
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* 3.3. Redistribution of Executable. Redistribution in executable form of any
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* substantial portion of the Covered Code or modification must reproduce the
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* above Copyright Notice, and the following Disclaimer and Export Compliance
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* provision in the documentation and/or other materials provided with the
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* distribution.
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*
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* 3.4. Intel retains all right, title, and interest in and to the Original
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* Intel Code.
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*
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* 3.5. Neither the name Intel nor any other trademark owned or controlled by
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* Intel shall be used in advertising or otherwise to promote the sale, use or
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* other dealings in products derived from or relating to the Covered Code
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* without prior written authorization from Intel.
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*
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* 4. Disclaimer and Export Compliance
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*
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* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
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* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
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* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
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* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
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* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
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* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
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* PARTICULAR PURPOSE.
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*
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* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
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* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
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* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
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* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
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* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
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* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
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* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
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* LIMITED REMEDY.
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*
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* 4.3. Licensee shall not export, either directly or indirectly, any of this
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* software or system incorporating such software without first obtaining any
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* required license or other approval from the U. S. Department of Commerce or
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* any other agency or department of the United States Government. In the
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* event Licensee exports any such software from the United States or
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* re-exports any such software from a foreign destination, Licensee shall
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* ensure that the distribution and export/re-export of the software is in
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* compliance with all laws, regulations, orders, or other restrictions of the
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* U.S. Export Administration Regulations. Licensee agrees that neither it nor
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* any of its subsidiaries will export/re-export any technical data, process,
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* software, or service, directly or indirectly, to any country for which the
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* United States government or any agency thereof requires an export license,
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* other governmental approval, or letter of assurance, without first obtaining
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* such license, approval or letter.
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*
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*****************************************************************************/
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#define __RSXFACE_C__
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#include <contrib/dev/acpica/acpi.h>
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#include <contrib/dev/acpica/acresrc.h>
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#include <contrib/dev/acpica/acnamesp.h>
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#define _COMPONENT ACPI_RESOURCES
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ACPI_MODULE_NAME ("rsxface")
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/* Local macros for 16,32-bit to 64-bit conversion */
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#define ACPI_COPY_FIELD(Out, In, Field) ((Out)->Field = (In)->Field)
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#define ACPI_COPY_ADDRESS(Out, In) \
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ACPI_COPY_FIELD(Out, In, ResourceType); \
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ACPI_COPY_FIELD(Out, In, ProducerConsumer); \
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ACPI_COPY_FIELD(Out, In, Decode); \
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ACPI_COPY_FIELD(Out, In, MinAddressFixed); \
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ACPI_COPY_FIELD(Out, In, MaxAddressFixed); \
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ACPI_COPY_FIELD(Out, In, Info); \
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ACPI_COPY_FIELD(Out, In, Granularity); \
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ACPI_COPY_FIELD(Out, In, Minimum); \
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ACPI_COPY_FIELD(Out, In, Maximum); \
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ACPI_COPY_FIELD(Out, In, TranslationOffset); \
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ACPI_COPY_FIELD(Out, In, AddressLength); \
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ACPI_COPY_FIELD(Out, In, ResourceSource);
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/* Local prototypes */
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static ACPI_STATUS
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AcpiRsMatchVendorResource (
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ACPI_RESOURCE *Resource,
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void *Context);
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static ACPI_STATUS
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AcpiRsValidateParameters (
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ACPI_HANDLE DeviceHandle,
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ACPI_BUFFER *Buffer,
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ACPI_NAMESPACE_NODE **ReturnNode);
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsValidateParameters
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*
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* PARAMETERS: DeviceHandle - Handle to a device
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* Buffer - Pointer to a data buffer
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* ReturnNode - Pointer to where the device node is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Common parameter validation for resource interfaces
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*
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******************************************************************************/
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static ACPI_STATUS
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AcpiRsValidateParameters (
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ACPI_HANDLE DeviceHandle,
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ACPI_BUFFER *Buffer,
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ACPI_NAMESPACE_NODE **ReturnNode)
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{
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ACPI_STATUS Status;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_FUNCTION_TRACE (RsValidateParameters);
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/*
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* Must have a valid handle to an ACPI device
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*/
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if (!DeviceHandle)
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{
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return_ACPI_STATUS (AE_BAD_PARAMETER);
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}
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Node = AcpiNsMapHandleToNode (DeviceHandle);
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if (!Node)
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{
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return_ACPI_STATUS (AE_BAD_PARAMETER);
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}
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if (Node->Type != ACPI_TYPE_DEVICE)
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{
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return_ACPI_STATUS (AE_TYPE);
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}
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/*
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* Validate the user buffer object
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*
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* if there is a non-zero buffer length we also need a valid pointer in
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* the buffer. If it's a zero buffer length, we'll be returning the
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* needed buffer size (later), so keep going.
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*/
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Status = AcpiUtValidateBuffer (Buffer);
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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*ReturnNode = Node;
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return_ACPI_STATUS (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiGetIrqRoutingTable
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*
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* PARAMETERS: DeviceHandle - Handle to the Bus device we are querying
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* RetBuffer - Pointer to a buffer to receive the
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* current resources for the device
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*
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* RETURN: Status
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*
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* DESCRIPTION: This function is called to get the IRQ routing table for a
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* specific bus. The caller must first acquire a handle for the
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* desired bus. The routine table is placed in the buffer pointed
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* to by the RetBuffer variable parameter.
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*
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* If the function fails an appropriate status will be returned
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* and the value of RetBuffer is undefined.
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*
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* This function attempts to execute the _PRT method contained in
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* the object indicated by the passed DeviceHandle.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiGetIrqRoutingTable (
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ACPI_HANDLE DeviceHandle,
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ACPI_BUFFER *RetBuffer)
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{
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ACPI_STATUS Status;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_FUNCTION_TRACE (AcpiGetIrqRoutingTable);
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/* Validate parameters then dispatch to internal routine */
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Status = AcpiRsValidateParameters (DeviceHandle, RetBuffer, &Node);
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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Status = AcpiRsGetPrtMethodData (Node, RetBuffer);
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return_ACPI_STATUS (Status);
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}
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ACPI_EXPORT_SYMBOL (AcpiGetIrqRoutingTable)
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/*******************************************************************************
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*
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* FUNCTION: AcpiGetCurrentResources
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*
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* PARAMETERS: DeviceHandle - Handle to the device object for the
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* device we are querying
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* RetBuffer - Pointer to a buffer to receive the
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* current resources for the device
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*
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* RETURN: Status
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*
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* DESCRIPTION: This function is called to get the current resources for a
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* specific device. The caller must first acquire a handle for
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* the desired device. The resource data is placed in the buffer
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* pointed to by the RetBuffer variable parameter.
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*
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* If the function fails an appropriate status will be returned
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* and the value of RetBuffer is undefined.
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*
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* This function attempts to execute the _CRS method contained in
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* the object indicated by the passed DeviceHandle.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiGetCurrentResources (
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ACPI_HANDLE DeviceHandle,
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ACPI_BUFFER *RetBuffer)
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{
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ACPI_STATUS Status;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_FUNCTION_TRACE (AcpiGetCurrentResources);
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/* Validate parameters then dispatch to internal routine */
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Status = AcpiRsValidateParameters (DeviceHandle, RetBuffer, &Node);
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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Status = AcpiRsGetCrsMethodData (Node, RetBuffer);
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return_ACPI_STATUS (Status);
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}
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ACPI_EXPORT_SYMBOL (AcpiGetCurrentResources)
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/*******************************************************************************
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*
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* FUNCTION: AcpiGetPossibleResources
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*
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* PARAMETERS: DeviceHandle - Handle to the device object for the
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* device we are querying
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* RetBuffer - Pointer to a buffer to receive the
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* resources for the device
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*
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* RETURN: Status
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*
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* DESCRIPTION: This function is called to get a list of the possible resources
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* for a specific device. The caller must first acquire a handle
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* for the desired device. The resource data is placed in the
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* buffer pointed to by the RetBuffer variable.
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*
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* If the function fails an appropriate status will be returned
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* and the value of RetBuffer is undefined.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiGetPossibleResources (
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ACPI_HANDLE DeviceHandle,
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ACPI_BUFFER *RetBuffer)
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{
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ACPI_STATUS Status;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_FUNCTION_TRACE (AcpiGetPossibleResources);
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/* Validate parameters then dispatch to internal routine */
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Status = AcpiRsValidateParameters (DeviceHandle, RetBuffer, &Node);
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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Status = AcpiRsGetPrsMethodData (Node, RetBuffer);
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return_ACPI_STATUS (Status);
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}
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ACPI_EXPORT_SYMBOL (AcpiGetPossibleResources)
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/*******************************************************************************
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*
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* FUNCTION: AcpiSetCurrentResources
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*
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* PARAMETERS: DeviceHandle - Handle to the device object for the
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* device we are setting resources
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* InBuffer - Pointer to a buffer containing the
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* resources to be set for the device
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*
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* RETURN: Status
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*
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* DESCRIPTION: This function is called to set the current resources for a
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* specific device. The caller must first acquire a handle for
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* the desired device. The resource data is passed to the routine
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* the buffer pointed to by the InBuffer variable.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiSetCurrentResources (
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ACPI_HANDLE DeviceHandle,
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ACPI_BUFFER *InBuffer)
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{
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ACPI_STATUS Status;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_FUNCTION_TRACE (AcpiSetCurrentResources);
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/* Validate the buffer, don't allow zero length */
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if ((!InBuffer) ||
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(!InBuffer->Pointer) ||
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(!InBuffer->Length))
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{
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return_ACPI_STATUS (AE_BAD_PARAMETER);
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}
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/* Validate parameters then dispatch to internal routine */
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Status = AcpiRsValidateParameters (DeviceHandle, InBuffer, &Node);
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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Status = AcpiRsSetSrsMethodData (Node, InBuffer);
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return_ACPI_STATUS (Status);
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}
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ACPI_EXPORT_SYMBOL (AcpiSetCurrentResources)
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/******************************************************************************
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*
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* FUNCTION: AcpiResourceToAddress64
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*
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* PARAMETERS: Resource - Pointer to a resource
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* Out - Pointer to the users's return buffer
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* (a struct acpi_resource_address64)
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*
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* RETURN: Status
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*
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* DESCRIPTION: If the resource is an address16, address32, or address64,
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* copy it to the address64 return buffer. This saves the
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* caller from having to duplicate code for different-sized
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* addresses.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiResourceToAddress64 (
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ACPI_RESOURCE *Resource,
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ACPI_RESOURCE_ADDRESS64 *Out)
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{
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ACPI_RESOURCE_ADDRESS16 *Address16;
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ACPI_RESOURCE_ADDRESS32 *Address32;
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if (!Resource || !Out)
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{
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return (AE_BAD_PARAMETER);
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}
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/* Convert 16 or 32 address descriptor to 64 */
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switch (Resource->Type)
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{
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case ACPI_RESOURCE_TYPE_ADDRESS16:
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Address16 = (ACPI_RESOURCE_ADDRESS16 *) &Resource->Data;
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ACPI_COPY_ADDRESS (Out, Address16);
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break;
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case ACPI_RESOURCE_TYPE_ADDRESS32:
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Address32 = (ACPI_RESOURCE_ADDRESS32 *) &Resource->Data;
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ACPI_COPY_ADDRESS (Out, Address32);
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break;
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case ACPI_RESOURCE_TYPE_ADDRESS64:
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/* Simple copy for 64 bit source */
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ACPI_MEMCPY (Out, &Resource->Data, sizeof (ACPI_RESOURCE_ADDRESS64));
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break;
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default:
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return (AE_BAD_PARAMETER);
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}
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return (AE_OK);
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}
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ACPI_EXPORT_SYMBOL (AcpiResourceToAddress64)
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/*******************************************************************************
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*
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* FUNCTION: AcpiGetVendorResource
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*
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* PARAMETERS: DeviceHandle - Handle for the parent device object
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* Name - Method name for the parent resource
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* (METHOD_NAME__CRS or METHOD_NAME__PRS)
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* Uuid - Pointer to the UUID to be matched.
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* includes both subtype and 16-byte UUID
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* RetBuffer - Where the vendor resource is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Walk a resource template for the specified evice to find a
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* vendor-defined resource that matches the supplied UUID and
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* UUID subtype. Returns a ACPI_RESOURCE of type Vendor.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiGetVendorResource (
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ACPI_HANDLE DeviceHandle,
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char *Name,
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ACPI_VENDOR_UUID *Uuid,
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ACPI_BUFFER *RetBuffer)
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{
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ACPI_VENDOR_WALK_INFO Info;
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ACPI_STATUS Status;
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/* Other parameters are validated by AcpiWalkResources */
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if (!Uuid || !RetBuffer)
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{
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return (AE_BAD_PARAMETER);
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}
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Info.Uuid = Uuid;
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Info.Buffer = RetBuffer;
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Info.Status = AE_NOT_EXIST;
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/* Walk the _CRS or _PRS resource list for this device */
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Status = AcpiWalkResources (DeviceHandle, Name, AcpiRsMatchVendorResource,
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&Info);
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if (ACPI_FAILURE (Status))
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{
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return (Status);
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}
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return (Info.Status);
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}
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ACPI_EXPORT_SYMBOL (AcpiGetVendorResource)
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsMatchVendorResource
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*
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* PARAMETERS: ACPI_WALK_RESOURCE_CALLBACK
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*
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* RETURN: Status
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*
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* DESCRIPTION: Match a vendor resource via the ACPI 3.0 UUID
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|
*
|
|
******************************************************************************/
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|
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|
static ACPI_STATUS
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AcpiRsMatchVendorResource (
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ACPI_RESOURCE *Resource,
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|
void *Context)
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|
{
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ACPI_VENDOR_WALK_INFO *Info = Context;
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ACPI_RESOURCE_VENDOR_TYPED *Vendor;
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ACPI_BUFFER *Buffer;
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|
ACPI_STATUS Status;
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|
|
|
|
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/* Ignore all descriptors except Vendor */
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|
|
|
if (Resource->Type != ACPI_RESOURCE_TYPE_VENDOR)
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|
{
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|
return (AE_OK);
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|
}
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|
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Vendor = &Resource->Data.VendorTyped;
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|
|
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/*
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* For a valid match, these conditions must hold:
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|
*
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* 1) Length of descriptor data must be at least as long as a UUID struct
|
|
* 2) The UUID subtypes must match
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|
* 3) The UUID data must match
|
|
*/
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|
if ((Vendor->ByteLength < (ACPI_UUID_LENGTH + 1)) ||
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|
(Vendor->UuidSubtype != Info->Uuid->Subtype) ||
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|
(ACPI_MEMCMP (Vendor->Uuid, Info->Uuid->Data, ACPI_UUID_LENGTH)))
|
|
{
|
|
return (AE_OK);
|
|
}
|
|
|
|
/* Validate/Allocate/Clear caller buffer */
|
|
|
|
Buffer = Info->Buffer;
|
|
Status = AcpiUtInitializeBuffer (Buffer, Resource->Length);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return (Status);
|
|
}
|
|
|
|
/* Found the correct resource, copy and return it */
|
|
|
|
ACPI_MEMCPY (Buffer->Pointer, Resource, Resource->Length);
|
|
Buffer->Length = Resource->Length;
|
|
|
|
/* Found the desired descriptor, terminate resource walk */
|
|
|
|
Info->Status = AE_OK;
|
|
return (AE_CTRL_TERMINATE);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiWalkResources
|
|
*
|
|
* PARAMETERS: DeviceHandle - Handle to the device object for the
|
|
* device we are querying
|
|
* Name - Method name of the resources we want
|
|
* (METHOD_NAME__CRS or METHOD_NAME__PRS)
|
|
* UserFunction - Called for each resource
|
|
* Context - Passed to UserFunction
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Retrieves the current or possible resource list for the
|
|
* specified device. The UserFunction is called once for
|
|
* each resource in the list.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiWalkResources (
|
|
ACPI_HANDLE DeviceHandle,
|
|
char *Name,
|
|
ACPI_WALK_RESOURCE_CALLBACK UserFunction,
|
|
void *Context)
|
|
{
|
|
ACPI_STATUS Status;
|
|
ACPI_BUFFER Buffer;
|
|
ACPI_RESOURCE *Resource;
|
|
ACPI_RESOURCE *ResourceEnd;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (AcpiWalkResources);
|
|
|
|
|
|
/* Parameter validation */
|
|
|
|
if (!DeviceHandle || !UserFunction || !Name ||
|
|
(!ACPI_COMPARE_NAME (Name, METHOD_NAME__CRS) &&
|
|
!ACPI_COMPARE_NAME (Name, METHOD_NAME__PRS)))
|
|
{
|
|
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
|
}
|
|
|
|
/* Get the _CRS or _PRS resource list */
|
|
|
|
Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER;
|
|
Status = AcpiRsGetMethodData (DeviceHandle, Name, &Buffer);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Buffer now contains the resource list */
|
|
|
|
Resource = ACPI_CAST_PTR (ACPI_RESOURCE, Buffer.Pointer);
|
|
ResourceEnd = ACPI_ADD_PTR (ACPI_RESOURCE, Buffer.Pointer, Buffer.Length);
|
|
|
|
/* Walk the resource list until the EndTag is found (or buffer end) */
|
|
|
|
while (Resource < ResourceEnd)
|
|
{
|
|
/* Sanity check the resource */
|
|
|
|
if (Resource->Type > ACPI_RESOURCE_TYPE_MAX)
|
|
{
|
|
Status = AE_AML_INVALID_RESOURCE_TYPE;
|
|
break;
|
|
}
|
|
|
|
/* Invoke the user function, abort on any error returned */
|
|
|
|
Status = UserFunction (Resource, Context);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
if (Status == AE_CTRL_TERMINATE)
|
|
{
|
|
/* This is an OK termination by the user function */
|
|
|
|
Status = AE_OK;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* EndTag indicates end-of-list */
|
|
|
|
if (Resource->Type == ACPI_RESOURCE_TYPE_END_TAG)
|
|
{
|
|
break;
|
|
}
|
|
|
|
/* Get the next resource descriptor */
|
|
|
|
Resource = ACPI_ADD_PTR (ACPI_RESOURCE, Resource, Resource->Length);
|
|
}
|
|
|
|
ACPI_FREE (Buffer.Pointer);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
ACPI_EXPORT_SYMBOL (AcpiWalkResources)
|