625 lines
20 KiB
C
625 lines
20 KiB
C
/*******************************************************************************
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*
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* Module Name: rsio - IO and DMA resource descriptors
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* $Revision: 25 $
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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 - 2004, 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 __RSIO_C__
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#include "acpi.h"
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#include "acresrc.h"
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#define _COMPONENT ACPI_RESOURCES
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ACPI_MODULE_NAME ("rsio")
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsIoResource
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*
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* PARAMETERS: ByteStreamBuffer - Pointer to the resource input byte
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* stream
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* BytesConsumed - Pointer to where the number of bytes
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* consumed the ByteStreamBuffer is
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* returned
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* OutputBuffer - Pointer to the return data buffer
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* StructureSize - Pointer to where the number of bytes
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* in the return data struct is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Take the resource byte stream and fill out the appropriate
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* structure pointed to by the OutputBuffer. Return the
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* number of bytes consumed from the byte stream.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiRsIoResource (
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UINT8 *ByteStreamBuffer,
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ACPI_SIZE *BytesConsumed,
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UINT8 **OutputBuffer,
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ACPI_SIZE *StructureSize)
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{
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UINT8 *Buffer = ByteStreamBuffer;
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ACPI_RESOURCE *OutputStruct = (void *) *OutputBuffer;
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UINT16 Temp16 = 0;
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UINT8 Temp8 = 0;
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ACPI_SIZE StructSize = ACPI_SIZEOF_RESOURCE (ACPI_RESOURCE_IO);
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ACPI_FUNCTION_TRACE ("RsIoResource");
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/*
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* The number of bytes consumed are Constant
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*/
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*BytesConsumed = 8;
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OutputStruct->Id = ACPI_RSTYPE_IO;
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/*
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* Check Decode
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*/
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Buffer += 1;
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Temp8 = *Buffer;
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OutputStruct->Data.Io.IoDecode = Temp8 & 0x01;
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/*
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* Check MinBase Address
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*/
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Buffer += 1;
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ACPI_MOVE_16_TO_16 (&Temp16, Buffer);
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OutputStruct->Data.Io.MinBaseAddress = Temp16;
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/*
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* Check MaxBase Address
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*/
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Buffer += 2;
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ACPI_MOVE_16_TO_16 (&Temp16, Buffer);
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OutputStruct->Data.Io.MaxBaseAddress = Temp16;
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/*
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* Check Base alignment
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*/
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Buffer += 2;
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Temp8 = *Buffer;
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OutputStruct->Data.Io.Alignment = Temp8;
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/*
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* Check RangeLength
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*/
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Buffer += 1;
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Temp8 = *Buffer;
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OutputStruct->Data.Io.RangeLength = Temp8;
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/*
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* Set the Length parameter
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*/
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OutputStruct->Length = (UINT32) StructSize;
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/*
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* Return the final size of the structure
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*/
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*StructureSize = StructSize;
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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: AcpiRsFixedIoResource
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*
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* PARAMETERS: ByteStreamBuffer - Pointer to the resource input byte
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* stream
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* BytesConsumed - Pointer to where the number of bytes
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* consumed the ByteStreamBuffer is
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* returned
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* OutputBuffer - Pointer to the return data buffer
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* StructureSize - Pointer to where the number of bytes
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* in the return data struct is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Take the resource byte stream and fill out the appropriate
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* structure pointed to by the OutputBuffer. Return the
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* number of bytes consumed from the byte stream.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiRsFixedIoResource (
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UINT8 *ByteStreamBuffer,
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ACPI_SIZE *BytesConsumed,
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UINT8 **OutputBuffer,
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ACPI_SIZE *StructureSize)
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{
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UINT8 *Buffer = ByteStreamBuffer;
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ACPI_RESOURCE *OutputStruct = (void *) *OutputBuffer;
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UINT16 Temp16 = 0;
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UINT8 Temp8 = 0;
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ACPI_SIZE StructSize = ACPI_SIZEOF_RESOURCE (ACPI_RESOURCE_FIXED_IO);
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ACPI_FUNCTION_TRACE ("RsFixedIoResource");
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/*
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* The number of bytes consumed are Constant
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*/
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*BytesConsumed = 4;
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OutputStruct->Id = ACPI_RSTYPE_FIXED_IO;
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/*
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* Check Range Base Address
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*/
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Buffer += 1;
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ACPI_MOVE_16_TO_16 (&Temp16, Buffer);
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OutputStruct->Data.FixedIo.BaseAddress = Temp16;
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/*
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* Check RangeLength
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*/
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Buffer += 2;
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Temp8 = *Buffer;
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OutputStruct->Data.FixedIo.RangeLength = Temp8;
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/*
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* Set the Length parameter
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*/
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OutputStruct->Length = (UINT32) StructSize;
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/*
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* Return the final size of the structure
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*/
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*StructureSize = StructSize;
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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: AcpiRsIoStream
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*
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* PARAMETERS: LinkedList - Pointer to the resource linked list
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* OutputBuffer - Pointer to the user's return buffer
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* BytesConsumed - Pointer to where the number of bytes
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* used in the OutputBuffer is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Take the linked list resource structure and fills in the
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* the appropriate bytes in a byte stream
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiRsIoStream (
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ACPI_RESOURCE *LinkedList,
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UINT8 **OutputBuffer,
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ACPI_SIZE *BytesConsumed)
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{
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UINT8 *Buffer = *OutputBuffer;
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UINT16 Temp16 = 0;
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UINT8 Temp8 = 0;
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ACPI_FUNCTION_TRACE ("RsIoStream");
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/*
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* The descriptor field is static
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*/
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*Buffer = 0x47;
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Buffer += 1;
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/*
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* Io Information Byte
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*/
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Temp8 = (UINT8) (LinkedList->Data.Io.IoDecode & 0x01);
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*Buffer = Temp8;
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Buffer += 1;
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/*
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* Set the Range minimum base address
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*/
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Temp16 = (UINT16) LinkedList->Data.Io.MinBaseAddress;
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ACPI_MOVE_16_TO_16 (Buffer, &Temp16);
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Buffer += 2;
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/*
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* Set the Range maximum base address
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*/
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Temp16 = (UINT16) LinkedList->Data.Io.MaxBaseAddress;
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ACPI_MOVE_16_TO_16 (Buffer, &Temp16);
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Buffer += 2;
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/*
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* Set the base alignment
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*/
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Temp8 = (UINT8) LinkedList->Data.Io.Alignment;
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*Buffer = Temp8;
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Buffer += 1;
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/*
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* Set the range length
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*/
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Temp8 = (UINT8) LinkedList->Data.Io.RangeLength;
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*Buffer = Temp8;
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Buffer += 1;
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/*
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* Return the number of bytes consumed in this operation
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*/
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*BytesConsumed = ACPI_PTR_DIFF (Buffer, *OutputBuffer);
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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: AcpiRsFixedIoStream
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*
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* PARAMETERS: LinkedList - Pointer to the resource linked list
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* OutputBuffer - Pointer to the user's return buffer
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* BytesConsumed - Pointer to where the number of bytes
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* used in the OutputBuffer is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Take the linked list resource structure and fills in the
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* the appropriate bytes in a byte stream
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiRsFixedIoStream (
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ACPI_RESOURCE *LinkedList,
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UINT8 **OutputBuffer,
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ACPI_SIZE *BytesConsumed)
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{
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UINT8 *Buffer = *OutputBuffer;
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UINT16 Temp16 = 0;
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UINT8 Temp8 = 0;
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ACPI_FUNCTION_TRACE ("RsFixedIoStream");
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/*
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* The descriptor field is static
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*/
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*Buffer = 0x4B;
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Buffer += 1;
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/*
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* Set the Range base address
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*/
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Temp16 = (UINT16) LinkedList->Data.FixedIo.BaseAddress;
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ACPI_MOVE_16_TO_16 (Buffer, &Temp16);
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Buffer += 2;
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/*
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* Set the range length
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*/
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Temp8 = (UINT8) LinkedList->Data.FixedIo.RangeLength;
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*Buffer = Temp8;
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Buffer += 1;
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/*
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* Return the number of bytes consumed in this operation
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*/
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*BytesConsumed = ACPI_PTR_DIFF (Buffer, *OutputBuffer);
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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: AcpiRsDmaResource
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*
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* PARAMETERS: ByteStreamBuffer - Pointer to the resource input byte
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* stream
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* BytesConsumed - Pointer to where the number of bytes
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* consumed the ByteStreamBuffer is
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* returned
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* OutputBuffer - Pointer to the return data buffer
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* StructureSize - Pointer to where the number of bytes
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* in the return data struct is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Take the resource byte stream and fill out the appropriate
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* structure pointed to by the OutputBuffer. Return the
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* number of bytes consumed from the byte stream.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiRsDmaResource (
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UINT8 *ByteStreamBuffer,
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ACPI_SIZE *BytesConsumed,
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UINT8 **OutputBuffer,
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ACPI_SIZE *StructureSize)
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{
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UINT8 *Buffer = ByteStreamBuffer;
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ACPI_RESOURCE *OutputStruct = (void *) *OutputBuffer;
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UINT8 Temp8 = 0;
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UINT8 Index;
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UINT8 i;
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ACPI_SIZE StructSize = ACPI_SIZEOF_RESOURCE (ACPI_RESOURCE_DMA);
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ACPI_FUNCTION_TRACE ("RsDmaResource");
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/*
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* The number of bytes consumed are Constant
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*/
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*BytesConsumed = 3;
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OutputStruct->Id = ACPI_RSTYPE_DMA;
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/*
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* Point to the 8-bits of Byte 1
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*/
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Buffer += 1;
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Temp8 = *Buffer;
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/* Decode the DMA channel bits */
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for (i = 0, Index = 0; Index < 8; Index++)
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{
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if ((Temp8 >> Index) & 0x01)
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{
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OutputStruct->Data.Dma.Channels[i] = Index;
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i++;
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}
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}
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/* Zero DMA channels is valid */
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OutputStruct->Data.Dma.NumberOfChannels = i;
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if (i > 0)
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{
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/*
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* Calculate the structure size based upon the number of interrupts
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*/
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StructSize += ((ACPI_SIZE) i - 1) * 4;
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}
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/*
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* Point to Byte 2
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*/
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Buffer += 1;
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Temp8 = *Buffer;
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/*
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* Check for transfer preference (Bits[1:0])
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*/
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OutputStruct->Data.Dma.Transfer = Temp8 & 0x03;
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if (0x03 == OutputStruct->Data.Dma.Transfer)
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{
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ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid DMA.Transfer preference (3)\n"));
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return_ACPI_STATUS (AE_BAD_DATA);
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}
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/*
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* Get bus master preference (Bit[2])
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*/
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OutputStruct->Data.Dma.BusMaster = (Temp8 >> 2) & 0x01;
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/*
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* Get channel speed support (Bits[6:5])
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*/
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OutputStruct->Data.Dma.Type = (Temp8 >> 5) & 0x03;
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/*
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* Set the Length parameter
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*/
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OutputStruct->Length = (UINT32) StructSize;
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/*
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* Return the final size of the structure
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*/
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*StructureSize = StructSize;
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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: AcpiRsDmaStream
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*
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* PARAMETERS: LinkedList - Pointer to the resource linked list
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* OutputBuffer - Pointer to the user's return buffer
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* BytesConsumed - Pointer to where the number of bytes
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* used in the OutputBuffer is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Take the linked list resource structure and fills in the
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* the appropriate bytes in a byte stream
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiRsDmaStream (
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ACPI_RESOURCE *LinkedList,
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UINT8 **OutputBuffer,
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ACPI_SIZE *BytesConsumed)
|
|
{
|
|
UINT8 *Buffer = *OutputBuffer;
|
|
UINT16 Temp16 = 0;
|
|
UINT8 Temp8 = 0;
|
|
UINT8 Index;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("RsDmaStream");
|
|
|
|
|
|
/*
|
|
* The descriptor field is static
|
|
*/
|
|
*Buffer = 0x2A;
|
|
Buffer += 1;
|
|
Temp8 = 0;
|
|
|
|
/*
|
|
* Loop through all of the Channels and set the mask bits
|
|
*/
|
|
for (Index = 0;
|
|
Index < LinkedList->Data.Dma.NumberOfChannels;
|
|
Index++)
|
|
{
|
|
Temp16 = (UINT16) LinkedList->Data.Dma.Channels[Index];
|
|
Temp8 |= 0x1 << Temp16;
|
|
}
|
|
|
|
*Buffer = Temp8;
|
|
Buffer += 1;
|
|
|
|
/*
|
|
* Set the DMA Info
|
|
*/
|
|
Temp8 = (UINT8) ((LinkedList->Data.Dma.Type & 0x03) << 5);
|
|
Temp8 |= ((LinkedList->Data.Dma.BusMaster & 0x01) << 2);
|
|
Temp8 |= (LinkedList->Data.Dma.Transfer & 0x03);
|
|
|
|
*Buffer = Temp8;
|
|
Buffer += 1;
|
|
|
|
/*
|
|
* Return the number of bytes consumed in this operation
|
|
*/
|
|
*BytesConsumed = ACPI_PTR_DIFF (Buffer, *OutputBuffer);
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|