xref: /freebsd-10.0-release/sys/contrib/dev/acpica/components/resources/rslist.c

/*******************************************************************************
 *
 * Module Name: rslist - AcpiRsByteStreamToList
 *                       AcpiListToByteStream
 *              $Revision: 8 $
 *
 ******************************************************************************/

/******************************************************************************
 *
 * 1. Copyright Notice
 *
 * Some or all of this work - Copyright (c) 1999, Intel Corp.  All rights
 * reserved.
 *
 * 2. License
 *
 * 2.1. This is your license from Intel Corp. under its intellectual property
 * rights.  You may have additional license terms from the party that provided
 * you this software, covering your right to use that party's intellectual
 * property rights.
 *
 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
 * copy of the source code appearing in this file ("Covered Code") an
 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
 * base code distributed originally by Intel ("Original Intel Code") to copy,
 * make derivatives, distribute, use and display any portion of the Covered
 * Code in any form, with the right to sublicense such rights; and
 *
 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
 * license (with the right to sublicense), under only those claims of Intel
 * patents that are infringed by the Original Intel Code, to make, use, sell,
 * offer to sell, and import the Covered Code and derivative works thereof
 * solely to the minimum extent necessary to exercise the above copyright
 * license, and in no event shall the patent license extend to any additions
 * to or modifications of the Original Intel Code.  No other license or right
 * is granted directly or by implication, estoppel or otherwise;
 *
 * The above copyright and patent license is granted only if the following
 * conditions are met:
 *
 * 3. Conditions
 *
 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
 * Redistribution of source code of any substantial portion of the Covered
 * Code or modification with rights to further distribute source must include
 * the above Copyright Notice, the above License, this list of Conditions,
 * and the following Disclaimer and Export Compliance provision.  In addition,
 * Licensee must cause all Covered Code to which Licensee contributes to
 * contain a file documenting the changes Licensee made to create that Covered
 * Code and the date of any change.  Licensee must include in that file the
 * documentation of any changes made by any predecessor Licensee.  Licensee
 * must include a prominent statement that the modification is derived,
 * directly or indirectly, from Original Intel Code.
 *
 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
 * Redistribution of source code of any substantial portion of the Covered
 * Code or modification without rights to further distribute source must
 * include the following Disclaimer and Export Compliance provision in the
 * documentation and/or other materials provided with distribution.  In
 * addition, Licensee may not authorize further sublicense of source of any
 * portion of the Covered Code, and must include terms to the effect that the
 * license from Licensee to its licensee is limited to the intellectual
 * property embodied in the software Licensee provides to its licensee, and
 * not to intellectual property embodied in modifications its licensee may
 * make.
 *
 * 3.3. Redistribution of Executable. Redistribution in executable form of any
 * substantial portion of the Covered Code or modification must reproduce the
 * above Copyright Notice, and the following Disclaimer and Export Compliance
 * provision in the documentation and/or other materials provided with the
 * distribution.
 *
 * 3.4. Intel retains all right, title, and interest in and to the Original
 * Intel Code.
 *
 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
 * Intel shall be used in advertising or otherwise to promote the sale, use or
 * other dealings in products derived from or relating to the Covered Code
 * without prior written authorization from Intel.
 *
 * 4. Disclaimer and Export Compliance
 *
 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
 * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
 * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
 * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
 * PARTICULAR PURPOSE.
 *
 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
 * LIMITED REMEDY.
 *
 * 4.3. Licensee shall not export, either directly or indirectly, any of this
 * software or system incorporating such software without first obtaining any
 * required license or other approval from the U. S. Department of Commerce or
 * any other agency or department of the United States Government.  In the
 * event Licensee exports any such software from the United States or
 * re-exports any such software from a foreign destination, Licensee shall
 * ensure that the distribution and export/re-export of the software is in
 * compliance with all laws, regulations, orders, or other restrictions of the
 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
 * any of its subsidiaries will export/re-export any technical data, process,
 * software, or service, directly or indirectly, to any country for which the
 * United States government or any agency thereof requires an export license,
 * other governmental approval, or letter of assurance, without first obtaining
 * such license, approval or letter.
 *
 *****************************************************************************/

#define __RSLIST_C__

#include "acpi.h"
#include "acresrc.h"

#define _COMPONENT          RESOURCE_MANAGER
        MODULE_NAME         ("rslist")


/*******************************************************************************
 *
 * FUNCTION:    AcpiRsByteStreamToList
 *
 * PARAMETERS:  ByteStreamBuffer        - Pointer to the resource byte stream
 *              ByteStreamBufferLength  - Length of ByteStreamBuffer
 *              OutputBuffer            - Pointer to the buffer that will
 *                                          contain the output structures
 *
 * RETURN:      Status  AE_OK if okay, else a valid ACPI_STATUS code
 *
 * DESCRIPTION: Takes the resource byte stream and parses it, creating a
 *              linked list of resources in the caller's output buffer
 *
 ******************************************************************************/

ACPI_STATUS
AcpiRsByteStreamToList (
    UINT8                   *ByteStreamBuffer,
    UINT32                  ByteStreamBufferLength,
    UINT8                   **OutputBuffer)
{
    ACPI_STATUS             Status;
    UINT32                  BytesParsed = 0;
    UINT8                   ResourceType = 0;
    UINT32                  BytesConsumed = 0;
    UINT8                   **Buffer = OutputBuffer;
    UINT32                  StructureSize = 0;
    BOOLEAN                 EndTagProcessed = FALSE;


    FUNCTION_TRACE ("RsByteStreamToList");


    while (BytesParsed < ByteStreamBufferLength &&
            FALSE == EndTagProcessed)
    {
        /*
         * Look at the next byte in the stream
         */
        ResourceType = *ByteStreamBuffer;

        /*
         * See if this is a small or large resource
         */
        if(ResourceType & 0x80)
        {
            /*
             * Large Resource Type
             */
            switch (ResourceType)
            {
            case MEMORY_RANGE_24:
                /*
                 * 24-Bit Memory Resource
                 */
                Status = AcpiRsMemory24Resource(ByteStreamBuffer,
                                                &BytesConsumed,
                                                Buffer,
                                                &StructureSize);

                break;

            case LARGE_VENDOR_DEFINED:
                /*
                 * Vendor Defined Resource
                 */
                Status = AcpiRsVendorResource(ByteStreamBuffer,
                                              &BytesConsumed,
                                              Buffer,
                                              &StructureSize);

                break;

            case MEMORY_RANGE_32:
                /*
                 * 32-Bit Memory Range Resource
                 */
                Status = AcpiRsMemory32RangeResource(ByteStreamBuffer,
                                                     &BytesConsumed,
                                                     Buffer,
                                                     &StructureSize);

                break;

            case FIXED_MEMORY_RANGE_32:
                /*
                 * 32-Bit Fixed Memory Resource
                 */
                Status = AcpiRsFixedMemory32Resource(ByteStreamBuffer,
                                                     &BytesConsumed,
                                                     Buffer,
                                                     &StructureSize);

                break;

            case DWORD_ADDRESS_SPACE:
                /*
                 * 32-Bit Address Resource
                 */
                Status = AcpiRsAddress32Resource(ByteStreamBuffer,
                                                 &BytesConsumed,
                                                 Buffer,
                                                 &StructureSize);

                break;

            case WORD_ADDRESS_SPACE:
                /*
                 * 16-Bit Address Resource
                 */
                Status = AcpiRsAddress16Resource(ByteStreamBuffer,
                                                 &BytesConsumed,
                                                 Buffer,
                                                 &StructureSize);

                break;

            case EXTENDED_IRQ:
                /*
                 * Extended IRQ
                 */
                Status = AcpiRsExtendedIrqResource(ByteStreamBuffer,
                                                   &BytesConsumed,
                                                   Buffer,
                                                   &StructureSize);

                break;

/* TBD: [Future] 64-bit not currently supported */
/*
            case 0x8A:
                break;
*/

            default:
                /*
                 * If we get here, everything is out of sync,
                 *  so exit with an error
                 */
                return_ACPI_STATUS (AE_AML_ERROR);
                break;
            }
        }

        else
        {
            /*
             * Small Resource Type
             *  Only bits 7:3 are valid
             */
            ResourceType >>= 3;

            switch(ResourceType)
            {
            case IRQ_FORMAT:
                /*
                 * IRQ Resource
                 */
                Status = AcpiRsIrqResource(ByteStreamBuffer,
                                           &BytesConsumed,
                                           Buffer,
                                           &StructureSize);

                break;

            case DMA_FORMAT:
                /*
                 * DMA Resource
                 */
                Status = AcpiRsDmaResource(ByteStreamBuffer,
                                           &BytesConsumed,
                                           Buffer,
                                           &StructureSize);

                break;

            case START_DEPENDENT_TAG:
                /*
                 * Start Dependent Functions Resource
                 */
                Status = AcpiRsStartDependentFunctionsResource(ByteStreamBuffer,
                                                               &BytesConsumed,
                                                               Buffer,
                                                               &StructureSize);

                break;

            case END_DEPENDENT_TAG:
                /*
                 * End Dependent Functions Resource
                 */
                Status = AcpiRsEndDependentFunctionsResource(ByteStreamBuffer,
                                                             &BytesConsumed,
                                                             Buffer,
                                                             &StructureSize);

                break;

            case IO_PORT_DESCRIPTOR:
                /*
                 * IO Port Resource
                 */
                Status = AcpiRsIoResource(ByteStreamBuffer,
                                          &BytesConsumed,
                                          Buffer,
                                          &StructureSize);

                break;

            case FIXED_LOCATION_IO_DESCRIPTOR:
                /*
                 * Fixed IO Port Resource
                 */
                Status = AcpiRsFixedIoResource(ByteStreamBuffer,
                                               &BytesConsumed,
                                               Buffer,
                                               &StructureSize);

                break;

            case SMALL_VENDOR_DEFINED:
                /*
                 * Vendor Specific Resource
                 */
                Status = AcpiRsVendorResource(ByteStreamBuffer,
                                              &BytesConsumed,
                                              Buffer,
                                              &StructureSize);

                break;

            case END_TAG:
                /*
                 * End Tag
                 */
                Status = AcpiRsEndTagResource(ByteStreamBuffer,
                                              &BytesConsumed,
                                              Buffer,
                                              &StructureSize);
                EndTagProcessed = TRUE;

                break;

            default:
                /*
                 * If we get here, everything is out of sync,
                 *  so exit with an error
                 */
                return_ACPI_STATUS (AE_AML_ERROR);
                break;

            } /* switch */
        }  /* end else */

        /*
         * Update the return value and counter
         */
        BytesParsed += BytesConsumed;

        /*
         * Set the byte stream to point to the next resource
         */
        ByteStreamBuffer += BytesConsumed;

        /*
         * Set the Buffer to the next structure
         */
        *Buffer += StructureSize;

    } /*  end while */

    /*
     * Check the reason for exiting the while loop
     */
    if (!(ByteStreamBufferLength == BytesParsed) ||
         (TRUE != EndTagProcessed))
    {
        return_ACPI_STATUS (AE_AML_ERROR);
    }

    return_ACPI_STATUS (AE_OK);
}


/*******************************************************************************
 *
 * FUNCTION:    AcpiRsListToByteStream
 *
 * PARAMETERS:  LinkedList              - Pointer to the resource linked list
 *              ByteSteamSizeNeeded     - Calculated size of the byte stream
 *                                          needed from calling
 *                                          AcpiRsCalculateByteStreamLength()
 *                                          The size of the OutputBuffer is
 *                                          guaranteed to be >=
 *                                          ByteStreamSizeNeeded
 *              OutputBuffer            - Pointer to the buffer that will
 *                                          contain the byte stream
 *
 * RETURN:      Status  AE_OK if okay, else a valid ACPI_STATUS code
 *
 * DESCRIPTION: Takes the resource linked list and parses it, creating a
 *              byte stream of resources in the caller's output buffer
 *
 ******************************************************************************/

ACPI_STATUS
AcpiRsListToByteStream (
    RESOURCE                *LinkedList,
    UINT32                  ByteStreamSizeNeeded,
    UINT8                   **OutputBuffer)
{
    ACPI_STATUS             Status;
    UINT8                   *Buffer = *OutputBuffer;
    UINT32                  BytesConsumed = 0;
    BOOLEAN                 Done = FALSE;


    FUNCTION_TRACE ("RsListToByteStream");

    while (!Done)
    {
        switch (LinkedList->Id)
        {
        case Irq:
            /*
             * IRQ Resource
             */
            Status = AcpiRsIrqStream (LinkedList,
                                      &Buffer,
                                      &BytesConsumed);
            break;

        case Dma:
            /*
             * DMA Resource
             */
            Status = AcpiRsDmaStream (LinkedList,
                                      &Buffer,
                                      &BytesConsumed);
            break;

        case StartDependentFunctions:
            /*
             * Start Dependent Functions Resource
             */
            Status = AcpiRsStartDependentFunctionsStream (LinkedList,
                                                          &Buffer,
                                                          &BytesConsumed);
            break;

        case EndDependentFunctions:
            /*
             * End Dependent Functions Resource
             */
            Status = AcpiRsEndDependentFunctionsStream (LinkedList,
                                                        &Buffer,
                                                        &BytesConsumed);
            break;

        case Io:
            /*
             * IO Port Resource
             */
            Status = AcpiRsIoStream (LinkedList,
                                     &Buffer,
                                     &BytesConsumed);
            break;

        case FixedIo:
            /*
             * Fixed IO Port Resource
             */
            Status = AcpiRsFixedIoStream (LinkedList,
                                          &Buffer,
                                          &BytesConsumed);
            break;

        case VendorSpecific:
            /*
             * Vendor Defined Resource
             */
            Status = AcpiRsVendorStream (LinkedList,
                                         &Buffer,
                                         &BytesConsumed);
            break;

        case EndTag:
            /*
             * End Tag
             */
            Status = AcpiRsEndTagStream (LinkedList,
                                         &Buffer,
                                         &BytesConsumed);

            /*
             * An End Tag indicates the end of the Resource Template
             */
            Done = TRUE;
            break;

        case Memory24:
            /*
             * 24-Bit Memory Resource
             */
            Status = AcpiRsMemory24Stream (LinkedList,
                                           &Buffer,
                                           &BytesConsumed);
            break;

        case Memory32:
            /*
             * 32-Bit Memory Range Resource
             */
            Status = AcpiRsMemory32RangeStream (LinkedList,
                                                &Buffer,
                                                &BytesConsumed);
            break;

        case FixedMemory32:
            /*
             * 32-Bit Fixed Memory Resource
             */
            Status = AcpiRsFixedMemory32Stream (LinkedList,
                                                &Buffer,
                                                &BytesConsumed);
            break;

        case Address16:
            /*
             * 16-Bit Address Descriptor Resource
             */
            Status = AcpiRsAddress16Stream (LinkedList,
                                            &Buffer,
                                            &BytesConsumed);
            break;

        case Address32:
            /*
             * 32-Bit Address Descriptor Resource
             */
            Status = AcpiRsAddress32Stream (LinkedList,
                                            &Buffer,
                                            &BytesConsumed);
            break;

        case ExtendedIrq:
            /*
             * Extended IRQ Resource
             */
            Status = AcpiRsExtendedIrqStream (LinkedList,
                                              &Buffer,
                                              &BytesConsumed);
            break;

        default:
            /*
             * If we get here, everything is out of sync,
             *  so exit with an error
             */
            return_ACPI_STATUS (AE_BAD_DATA);
            break;

        } /* switch (LinkedList->Id) */

        /*
         * Set the Buffer to point to the open byte
         */
        Buffer += BytesConsumed;

        /*
         * Point to the next object
         */
        LinkedList = (RESOURCE *) ((NATIVE_UINT) LinkedList +
                     (NATIVE_UINT) LinkedList->Length);
    }

    return_ACPI_STATUS  (AE_OK);
}