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  1. /*******************************************************************************
  2.  *
  3.  * Module Name: rsio - IO and DMA resource descriptors
  4.  *
  5.  ******************************************************************************/
  6.  
  7. /******************************************************************************
  8.  *
  9.  * 1. Copyright Notice
  10.  *
  11.  * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
  12.  * All rights reserved.
  13.  *
  14.  * 2. License
  15.  *
  16.  * 2.1. This is your license from Intel Corp. under its intellectual property
  17.  * rights.  You may have additional license terms from the party that provided
  18.  * you this software, covering your right to use that party's intellectual
  19.  * property rights.
  20.  *
  21.  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
  22.  * copy of the source code appearing in this file ("Covered Code") an
  23.  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
  24.  * base code distributed originally by Intel ("Original Intel Code") to copy,
  25.  * make derivatives, distribute, use and display any portion of the Covered
  26.  * Code in any form, with the right to sublicense such rights; and
  27.  *
  28.  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
  29.  * license (with the right to sublicense), under only those claims of Intel
  30.  * patents that are infringed by the Original Intel Code, to make, use, sell,
  31.  * offer to sell, and import the Covered Code and derivative works thereof
  32.  * solely to the minimum extent necessary to exercise the above copyright
  33.  * license, and in no event shall the patent license extend to any additions
  34.  * to or modifications of the Original Intel Code.  No other license or right
  35.  * is granted directly or by implication, estoppel or otherwise;
  36.  *
  37.  * The above copyright and patent license is granted only if the following
  38.  * conditions are met:
  39.  *
  40.  * 3. Conditions
  41.  *
  42.  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
  43.  * Redistribution of source code of any substantial portion of the Covered
  44.  * Code or modification with rights to further distribute source must include
  45.  * the above Copyright Notice, the above License, this list of Conditions,
  46.  * and the following Disclaimer and Export Compliance provision.  In addition,
  47.  * Licensee must cause all Covered Code to which Licensee contributes to
  48.  * contain a file documenting the changes Licensee made to create that Covered
  49.  * Code and the date of any change.  Licensee must include in that file the
  50.  * documentation of any changes made by any predecessor Licensee.  Licensee
  51.  * must include a prominent statement that the modification is derived,
  52.  * directly or indirectly, from Original Intel Code.
  53.  *
  54.  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
  55.  * Redistribution of source code of any substantial portion of the Covered
  56.  * Code or modification without rights to further distribute source must
  57.  * include the following Disclaimer and Export Compliance provision in the
  58.  * documentation and/or other materials provided with distribution.  In
  59.  * addition, Licensee may not authorize further sublicense of source of any
  60.  * portion of the Covered Code, and must include terms to the effect that the
  61.  * license from Licensee to its licensee is limited to the intellectual
  62.  * property embodied in the software Licensee provides to its licensee, and
  63.  * not to intellectual property embodied in modifications its licensee may
  64.  * make.
  65.  *
  66.  * 3.3. Redistribution of Executable. Redistribution in executable form of any
  67.  * substantial portion of the Covered Code or modification must reproduce the
  68.  * above Copyright Notice, and the following Disclaimer and Export Compliance
  69.  * provision in the documentation and/or other materials provided with the
  70.  * distribution.
  71.  *
  72.  * 3.4. Intel retains all right, title, and interest in and to the Original
  73.  * Intel Code.
  74.  *
  75.  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
  76.  * Intel shall be used in advertising or otherwise to promote the sale, use or
  77.  * other dealings in products derived from or relating to the Covered Code
  78.  * without prior written authorization from Intel.
  79.  *
  80.  * 4. Disclaimer and Export Compliance
  81.  *
  82.  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
  83.  * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
  84.  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
  85.  * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
  86.  * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
  87.  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
  88.  * PARTICULAR PURPOSE.
  89.  *
  90.  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
  91.  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
  92.  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
  93.  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
  94.  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
  95.  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
  96.  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
  97.  * LIMITED REMEDY.
  98.  *
  99.  * 4.3. Licensee shall not export, either directly or indirectly, any of this
  100.  * software or system incorporating such software without first obtaining any
  101.  * required license or other approval from the U. S. Department of Commerce or
  102.  * any other agency or department of the United States Government.  In the
  103.  * event Licensee exports any such software from the United States or
  104.  * re-exports any such software from a foreign destination, Licensee shall
  105.  * ensure that the distribution and export/re-export of the software is in
  106.  * compliance with all laws, regulations, orders, or other restrictions of the
  107.  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
  108.  * any of its subsidiaries will export/re-export any technical data, process,
  109.  * software, or service, directly or indirectly, to any country for which the
  110.  * United States government or any agency thereof requires an export license,
  111.  * other governmental approval, or letter of assurance, without first obtaining
  112.  * such license, approval or letter.
  113.  *
  114.  *****************************************************************************/
  115.  
  116. #define __RSIO_C__
  117.  
  118. #include "acpi.h"
  119. #include "accommon.h"
  120. #include "acresrc.h"
  121.  
  122. #define _COMPONENT          ACPI_RESOURCES
  123.         ACPI_MODULE_NAME    ("rsio")
  124.  
  125.  
  126. /*******************************************************************************
  127.  *
  128.  * AcpiRsConvertIo
  129.  *
  130.  ******************************************************************************/
  131.  
  132. ACPI_RSCONVERT_INFO     AcpiRsConvertIo[5] =
  133. {
  134.     {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_IO,
  135.                         ACPI_RS_SIZE (ACPI_RESOURCE_IO),
  136.                         ACPI_RSC_TABLE_SIZE (AcpiRsConvertIo)},
  137.  
  138.     {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_IO,
  139.                         sizeof (AML_RESOURCE_IO),
  140.                         0},
  141.  
  142.     /* Decode flag */
  143.  
  144.     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Io.IoDecode),
  145.                         AML_OFFSET (Io.Flags),
  146.                         0},
  147.     /*
  148.      * These fields are contiguous in both the source and destination:
  149.      * Address Alignment
  150.      * Length
  151.      * Minimum Base Address
  152.      * Maximum Base Address
  153.      */
  154.     {ACPI_RSC_MOVE8,    ACPI_RS_OFFSET (Data.Io.Alignment),
  155.                         AML_OFFSET (Io.Alignment),
  156.                         2},
  157.  
  158.     {ACPI_RSC_MOVE16,   ACPI_RS_OFFSET (Data.Io.Minimum),
  159.                         AML_OFFSET (Io.Minimum),
  160.                         2}
  161. };
  162.  
  163.  
  164. /*******************************************************************************
  165.  *
  166.  * AcpiRsConvertFixedIo
  167.  *
  168.  ******************************************************************************/
  169.  
  170. ACPI_RSCONVERT_INFO     AcpiRsConvertFixedIo[4] =
  171. {
  172.     {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_FIXED_IO,
  173.                         ACPI_RS_SIZE (ACPI_RESOURCE_FIXED_IO),
  174.                         ACPI_RSC_TABLE_SIZE (AcpiRsConvertFixedIo)},
  175.  
  176.     {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_FIXED_IO,
  177.                         sizeof (AML_RESOURCE_FIXED_IO),
  178.                         0},
  179.     /*
  180.      * These fields are contiguous in both the source and destination:
  181.      * Base Address
  182.      * Length
  183.      */
  184.     {ACPI_RSC_MOVE8,    ACPI_RS_OFFSET (Data.FixedIo.AddressLength),
  185.                         AML_OFFSET (FixedIo.AddressLength),
  186.                         1},
  187.  
  188.     {ACPI_RSC_MOVE16,   ACPI_RS_OFFSET (Data.FixedIo.Address),
  189.                         AML_OFFSET (FixedIo.Address),
  190.                         1}
  191. };
  192.  
  193.  
  194. /*******************************************************************************
  195.  *
  196.  * AcpiRsConvertGenericReg
  197.  *
  198.  ******************************************************************************/
  199.  
  200. ACPI_RSCONVERT_INFO     AcpiRsConvertGenericReg[4] =
  201. {
  202.     {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_GENERIC_REGISTER,
  203.                         ACPI_RS_SIZE (ACPI_RESOURCE_GENERIC_REGISTER),
  204.                         ACPI_RSC_TABLE_SIZE (AcpiRsConvertGenericReg)},
  205.  
  206.     {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_GENERIC_REGISTER,
  207.                         sizeof (AML_RESOURCE_GENERIC_REGISTER),
  208.                         0},
  209.     /*
  210.      * These fields are contiguous in both the source and destination:
  211.      * Address Space ID
  212.      * Register Bit Width
  213.      * Register Bit Offset
  214.      * Access Size
  215.      */
  216.     {ACPI_RSC_MOVE8,    ACPI_RS_OFFSET (Data.GenericReg.SpaceId),
  217.                         AML_OFFSET (GenericReg.AddressSpaceId),
  218.                         4},
  219.  
  220.     /* Get the Register Address */
  221.  
  222.     {ACPI_RSC_MOVE64,   ACPI_RS_OFFSET (Data.GenericReg.Address),
  223.                         AML_OFFSET (GenericReg.Address),
  224.                         1}
  225. };
  226.  
  227.  
  228. /*******************************************************************************
  229.  *
  230.  * AcpiRsConvertEndDpf
  231.  *
  232.  ******************************************************************************/
  233.  
  234. ACPI_RSCONVERT_INFO   AcpiRsConvertEndDpf[2] =
  235. {
  236.     {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_END_DEPENDENT,
  237.                         ACPI_RS_SIZE_MIN,
  238.                         ACPI_RSC_TABLE_SIZE (AcpiRsConvertEndDpf)},
  239.  
  240.     {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_END_DEPENDENT,
  241.                         sizeof (AML_RESOURCE_END_DEPENDENT),
  242.                         0}
  243. };
  244.  
  245.  
  246. /*******************************************************************************
  247.  *
  248.  * AcpiRsConvertEndTag
  249.  *
  250.  ******************************************************************************/
  251.  
  252. ACPI_RSCONVERT_INFO   AcpiRsConvertEndTag[2] =
  253. {
  254.     {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_END_TAG,
  255.                         ACPI_RS_SIZE_MIN,
  256.                         ACPI_RSC_TABLE_SIZE (AcpiRsConvertEndTag)},
  257.  
  258.     /*
  259.      * Note: The checksum field is set to zero, meaning that the resource
  260.      * data is treated as if the checksum operation succeeded.
  261.      * (ACPI Spec 1.0b Section 6.4.2.8)
  262.      */
  263.     {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_END_TAG,
  264.                         sizeof (AML_RESOURCE_END_TAG),
  265.                         0}
  266. };
  267.  
  268.  
  269. /*******************************************************************************
  270.  *
  271.  * AcpiRsGetStartDpf
  272.  *
  273.  ******************************************************************************/
  274.  
  275. ACPI_RSCONVERT_INFO   AcpiRsGetStartDpf[6] =
  276. {
  277.     {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_START_DEPENDENT,
  278.                         ACPI_RS_SIZE (ACPI_RESOURCE_START_DEPENDENT),
  279.                         ACPI_RSC_TABLE_SIZE (AcpiRsGetStartDpf)},
  280.  
  281.     /* Defaults for Compatibility and Performance priorities */
  282.  
  283.     {ACPI_RSC_SET8,     ACPI_RS_OFFSET (Data.StartDpf.CompatibilityPriority),
  284.                         ACPI_ACCEPTABLE_CONFIGURATION,
  285.                         2},
  286.  
  287.     /* Get the descriptor length (0 or 1 for Start Dpf descriptor) */
  288.  
  289.     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.StartDpf.DescriptorLength),
  290.                         AML_OFFSET (StartDpf.DescriptorType),
  291.                         0},
  292.  
  293.     /* All done if there is no flag byte present in the descriptor */
  294.  
  295.     {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_AML_LENGTH, 0, 1},
  296.  
  297.     /* Flag byte is present, get the flags */
  298.  
  299.     {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.StartDpf.CompatibilityPriority),
  300.                         AML_OFFSET (StartDpf.Flags),
  301.                         0},
  302.  
  303.     {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.StartDpf.PerformanceRobustness),
  304.                         AML_OFFSET (StartDpf.Flags),
  305.                         2}
  306. };
  307.  
  308.  
  309. /*******************************************************************************
  310.  *
  311.  * AcpiRsSetStartDpf
  312.  *
  313.  ******************************************************************************/
  314.  
  315. ACPI_RSCONVERT_INFO   AcpiRsSetStartDpf[10] =
  316. {
  317.     /* Start with a default descriptor of length 1 */
  318.  
  319.     {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_START_DEPENDENT,
  320.                         sizeof (AML_RESOURCE_START_DEPENDENT),
  321.                         ACPI_RSC_TABLE_SIZE (AcpiRsSetStartDpf)},
  322.  
  323.     /* Set the default flag values */
  324.  
  325.     {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.StartDpf.CompatibilityPriority),
  326.                         AML_OFFSET (StartDpf.Flags),
  327.                         0},
  328.  
  329.     {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.StartDpf.PerformanceRobustness),
  330.                         AML_OFFSET (StartDpf.Flags),
  331.                         2},
  332.     /*
  333.      * All done if the output descriptor length is required to be 1
  334.      * (i.e., optimization to 0 bytes cannot be attempted)
  335.      */
  336.     {ACPI_RSC_EXIT_EQ,  ACPI_RSC_COMPARE_VALUE,
  337.                         ACPI_RS_OFFSET(Data.StartDpf.DescriptorLength),
  338.                         1},
  339.  
  340.     /* Set length to 0 bytes (no flags byte) */
  341.  
  342.     {ACPI_RSC_LENGTH,   0, 0, sizeof (AML_RESOURCE_START_DEPENDENT_NOPRIO)},
  343.  
  344.     /*
  345.      * All done if the output descriptor length is required to be 0.
  346.      *
  347.      * TBD: Perhaps we should check for error if input flags are not
  348.      * compatible with a 0-byte descriptor.
  349.      */
  350.     {ACPI_RSC_EXIT_EQ,  ACPI_RSC_COMPARE_VALUE,
  351.                         ACPI_RS_OFFSET(Data.StartDpf.DescriptorLength),
  352.                         0},
  353.  
  354.     /* Reset length to 1 byte (descriptor with flags byte) */
  355.  
  356.     {ACPI_RSC_LENGTH,   0, 0, sizeof (AML_RESOURCE_START_DEPENDENT)},
  357.  
  358.  
  359.     /*
  360.      * All done if flags byte is necessary -- if either priority value
  361.      * is not ACPI_ACCEPTABLE_CONFIGURATION
  362.      */
  363.     {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_VALUE,
  364.                         ACPI_RS_OFFSET (Data.StartDpf.CompatibilityPriority),
  365.                         ACPI_ACCEPTABLE_CONFIGURATION},
  366.  
  367.     {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_VALUE,
  368.                         ACPI_RS_OFFSET (Data.StartDpf.PerformanceRobustness),
  369.                         ACPI_ACCEPTABLE_CONFIGURATION},
  370.  
  371.     /* Flag byte is not necessary */
  372.  
  373.     {ACPI_RSC_LENGTH,   0, 0, sizeof (AML_RESOURCE_START_DEPENDENT_NOPRIO)}
  374. };
  375.  
  376.  
  377.