FreeBSD/Linux Kernel Cross Reference
sys/contrib/dev/acpica/compiler/aslresource.c

     /******************************************************************************
      *
      * Module Name: aslresource - Resource template/descriptor utilities
      *
      *****************************************************************************/
     
     /******************************************************************************
      *
      * 1. Copyright Notice
     *
     * Some or all of this work - Copyright (c) 1999 - 2022, 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.
    *
    *****************************************************************************
    *
    * Alternatively, you may choose to be licensed under the terms of the
    * following license:
    *
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions
    * are met:
    * 1. Redistributions of source code must retain the above copyright
    *    notice, this list of conditions, and the following disclaimer,
    *    without modification.
    * 2. Redistributions in binary form must reproduce at minimum a disclaimer
    *    substantially similar to the "NO WARRANTY" disclaimer below
    *    ("Disclaimer") and any redistribution must be conditioned upon
    *    including a substantially similar Disclaimer requirement for further
    *    binary redistribution.
    * 3. Neither the names of the above-listed copyright holders nor the names
    *    of any contributors may be used to endorse or promote products derived
    *    from this software without specific prior written permission.
    *
    * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    *
    * Alternatively, you may choose to be licensed under the terms of the
    * GNU General Public License ("GPL") version 2 as published by the Free
    * Software Foundation.
    *
    *****************************************************************************/
   
   #include <contrib/dev/acpica/compiler/aslcompiler.h>
   #include "aslcompiler.y.h"
   #include <contrib/dev/acpica/include/amlcode.h>
   
   
   #define _COMPONENT          ACPI_COMPILER
           ACPI_MODULE_NAME    ("aslresource")
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsSmallAddressCheck
    *
    * PARAMETERS:  Minimum             - Address Min value
    *              Maximum             - Address Max value
    *              Length              - Address range value
    *              Alignment           - Address alignment value
    *              MinOp               - Original Op for Address Min
    *              MaxOp               - Original Op for Address Max
    *              LengthOp            - Original Op for address range
    *              AlignOp             - Original Op for address alignment. If
    *                                    NULL, means "zero value for alignment is
    *                                    OK, and means 64K alignment" (for
    *                                    Memory24 descriptor)
    *              Op                  - Parent Op for entire construct
    *
    * RETURN:      None. Adds error messages to error log if necessary
    *
    * DESCRIPTION: Perform common value checks for "small" address descriptors.
    *              Currently:
    *                  Io, Memory24, Memory32
    *
    ******************************************************************************/
   
   void
   RsSmallAddressCheck (
       UINT8                   Type,
       UINT32                  Minimum,
       UINT32                  Maximum,
       UINT32                  Length,
       UINT32                  Alignment,
       ACPI_PARSE_OBJECT       *MinOp,
       ACPI_PARSE_OBJECT       *MaxOp,
       ACPI_PARSE_OBJECT       *LengthOp,
       ACPI_PARSE_OBJECT       *AlignOp,
       ACPI_PARSE_OBJECT       *Op)
   {
   
       if (AslGbl_NoResourceChecking)
       {
           return;
       }
   
       /*
        * Check for a so-called "null descriptor". These are descriptors that are
        * created with most fields set to zero. The intent is that the descriptor
        * will be updated/completed at runtime via a BufferField.
        *
        * If the descriptor does NOT have a resource tag, it cannot be referenced
        * by a BufferField and we will flag this as an error. Conversely, if
        * the descriptor has a resource tag, we will assume that a BufferField
        * will be used to dynamically update it, so no error.
        *
        * A possible enhancement to this check would be to verify that in fact
        * a BufferField is created using the resource tag, and perhaps even
        * verify that a Store is performed to the BufferField.
        *
        * Note: for these descriptors, Alignment is allowed to be zero
        */
       if (!Minimum && !Maximum && !Length)
       {
           if (!Op->Asl.ExternalName)
           {
               /* No resource tag. Descriptor is fixed and is also illegal */
   
               AslError (ASL_ERROR, ASL_MSG_NULL_DESCRIPTOR, Op, NULL);
           }
   
           return;
       }
   
       /*
        * Range checks for Memory24 and Memory32.
        * IO descriptor has different definition of min/max, don't check.
        */
       if (Type != ACPI_RESOURCE_NAME_IO)
       {
           /* Basic checks on Min/Max/Length */
   
           if (Minimum > Maximum)
           {
               AslError (ASL_ERROR, ASL_MSG_INVALID_MIN_MAX, MinOp, NULL);
           }
           else if (Length > (Maximum - Minimum + 1))
           {
               AslError (ASL_ERROR, ASL_MSG_INVALID_LENGTH, LengthOp, NULL);
           }
   
           /* Special case for Memory24, min/max values are compressed */
   
           if (Type == ACPI_RESOURCE_NAME_MEMORY24)
           {
               if (!Alignment) /* Alignment==0 means 64K alignment */
               {
                   Alignment = ACPI_UINT16_MAX + 1;
               }
   
               Minimum <<= 8;
               Maximum <<= 8;
           }
       }
   
       /* Alignment of zero is not in ACPI spec, but is used to mean byte acc */
   
       if (!Alignment)
       {
           Alignment = 1;
       }
   
       /* Addresses must be an exact multiple of the alignment value */
   
       if (Minimum % Alignment)
       {
           AslError (ASL_ERROR, ASL_MSG_ALIGNMENT, MinOp, NULL);
       }
       if (Maximum % Alignment)
       {
           AslError (ASL_ERROR, ASL_MSG_ALIGNMENT, MaxOp, NULL);
       }
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsLargeAddressCheck
    *
    * PARAMETERS:  Minimum             - Address Min value
    *              Maximum             - Address Max value
    *              Length              - Address range value
    *              Granularity         - Address granularity value
    *              Flags               - General flags for address descriptors:
    *                                    _MIF, _MAF, _DEC
    *              MinOp               - Original Op for Address Min
    *              MaxOp               - Original Op for Address Max
    *              LengthOp            - Original Op for address range
    *              GranOp              - Original Op for address granularity
    *              Op                  - Parent Op for entire construct
    *
    * RETURN:      None. Adds error messages to error log if necessary
    *
    * DESCRIPTION: Perform common value checks for "large" address descriptors.
    *              Currently:
    *                  WordIo,     WordBusNumber,  WordSpace
    *                  DWordIo,    DWordMemory,    DWordSpace
    *                  QWordIo,    QWordMemory,    QWordSpace
    *                  ExtendedIo, ExtendedMemory, ExtendedSpace
    *
    * _MIF flag set means that the minimum address is fixed and is not relocatable
    * _MAF flag set means that the maximum address is fixed and is not relocatable
    * Length of zero means that the record size is variable
    *
    * This function implements the LEN/MIF/MAF/MIN/MAX/GRA rules within Table 6-40
    * of the ACPI 4.0a specification. Added 04/2010.
    *
    ******************************************************************************/
   
   void
   RsLargeAddressCheck (
       UINT64                  Minimum,
       UINT64                  Maximum,
       UINT64                  Length,
       UINT64                  Granularity,
       UINT8                   Flags,
       ACPI_PARSE_OBJECT       *MinOp,
       ACPI_PARSE_OBJECT       *MaxOp,
       ACPI_PARSE_OBJECT       *LengthOp,
       ACPI_PARSE_OBJECT       *GranOp,
       ACPI_PARSE_OBJECT       *Op)
   {
   
       if (AslGbl_NoResourceChecking)
       {
           return;
       }
   
       /*
        * Check for a so-called "null descriptor". These are descriptors that are
        * created with most fields set to zero. The intent is that the descriptor
        * will be updated/completed at runtime via a BufferField.
        *
        * If the descriptor does NOT have a resource tag, it cannot be referenced
        * by a BufferField and we will flag this as an error. Conversely, if
        * the descriptor has a resource tag, we will assume that a BufferField
        * will be used to dynamically update it, so no error.
        *
        * A possible enhancement to this check would be to verify that in fact
        * a BufferField is created using the resource tag, and perhaps even
        * verify that a Store is performed to the BufferField.
        */
       if (!Minimum && !Maximum && !Length && !Granularity)
       {
           if (!Op->Asl.ExternalName)
           {
               /* No resource tag. Descriptor is fixed and is also illegal */
   
               AslError (ASL_ERROR, ASL_MSG_NULL_DESCRIPTOR, Op, NULL);
           }
   
           return;
       }
   
       /* Basic checks on Min/Max/Length */
   
       if (Minimum > Maximum)
       {
           AslError (ASL_ERROR, ASL_MSG_INVALID_MIN_MAX, MinOp, NULL);
           return;
       }
       else if (Length > (Maximum - Minimum + 1))
       {
           AslError (ASL_ERROR, ASL_MSG_INVALID_LENGTH, LengthOp, NULL);
           return;
       }
   
       /* If specified (non-zero), ensure granularity is a power-of-two minus one */
   
       if (Granularity)
       {
           if ((Granularity + 1) &
                Granularity)
           {
               AslError (ASL_ERROR, ASL_MSG_INVALID_GRANULARITY, GranOp, NULL);
               return;
           }
       }
   
       /*
        * Check the various combinations of Length, MinFixed, and MaxFixed
        */
       if (Length)
       {
           /* Fixed non-zero length */
   
           switch (Flags & (ACPI_RESOURCE_FLAG_MIF | ACPI_RESOURCE_FLAG_MAF))
           {
           case 0:
               /*
                * Fixed length, variable locations (both _MIN and _MAX).
                * Length must be a multiple of granularity
                */
               if (Granularity & Length)
               {
                   AslError (ASL_ERROR, ASL_MSG_ALIGNMENT, LengthOp, NULL);
               }
               break;
   
           case (ACPI_RESOURCE_FLAG_MIF | ACPI_RESOURCE_FLAG_MAF):
   
               /* Fixed length, fixed location. Granularity must be zero */
   
               if (Granularity != 0)
               {
                   AslError (ASL_ERROR, ASL_MSG_INVALID_GRAN_FIXED, GranOp, NULL);
               }
   
               /* Length must be exactly the size of the min/max window */
   
               if (Length != (Maximum - Minimum + 1))
               {
                   AslError (ASL_ERROR, ASL_MSG_INVALID_LENGTH_FIXED, LengthOp, NULL);
               }
               break;
   
           /* All other combinations are invalid */
   
           case ACPI_RESOURCE_FLAG_MIF:
           case ACPI_RESOURCE_FLAG_MAF:
           default:
   
               AslError (ASL_ERROR, ASL_MSG_INVALID_ADDR_FLAGS, LengthOp, NULL);
           }
       }
       else
       {
           /* Variable length (length==0) */
   
           switch (Flags & (ACPI_RESOURCE_FLAG_MIF | ACPI_RESOURCE_FLAG_MAF))
           {
           case 0:
               /*
                * Both _MIN and _MAX are variable.
                * No additional requirements, just exit
                */
               break;
   
           case ACPI_RESOURCE_FLAG_MIF:
   
               /* _MIN is fixed. _MIN must be multiple of _GRA */
   
               /*
                * The granularity is defined by the ACPI specification to be a
                * power-of-two minus one, therefore the granularity is a
                * bitmask which can be used to easily validate the addresses.
                */
               if (Granularity & Minimum)
               {
                   AslError (ASL_ERROR, ASL_MSG_ALIGNMENT, MinOp, NULL);
               }
               break;
   
           case ACPI_RESOURCE_FLAG_MAF:
   
               /* _MAX is fixed. (_MAX + 1) must be multiple of _GRA */
   
               if (Granularity & (Maximum + 1))
               {
                   AslError (ASL_ERROR, ASL_MSG_ALIGNMENT, MaxOp, "-1");
               }
               break;
   
           /* Both MIF/MAF set is invalid if length is zero */
   
           case (ACPI_RESOURCE_FLAG_MIF | ACPI_RESOURCE_FLAG_MAF):
           default:
   
               AslError (ASL_ERROR, ASL_MSG_INVALID_ADDR_FLAGS, LengthOp, NULL);
           }
       }
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsGetStringDataLength
    *
    * PARAMETERS:  InitializerOp     - Start of a subtree of init nodes
    *
    * RETURN:      Valid string length if a string node is found (otherwise 0)
    *
    * DESCRIPTION: In a list of peer nodes, find the first one that contains a
    *              string and return the length of the string.
    *
    ******************************************************************************/
   
   UINT16
   RsGetStringDataLength (
       ACPI_PARSE_OBJECT       *InitializerOp)
   {
   
       while (InitializerOp)
       {
           if (InitializerOp->Asl.ParseOpcode == PARSEOP_STRING_LITERAL)
           {
               return ((UINT16) (strlen (InitializerOp->Asl.Value.String) + 1));
           }
   
           InitializerOp = ASL_GET_PEER_NODE (InitializerOp);
       }
   
       return (0);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsAllocateResourceNode
    *
    * PARAMETERS:  Size        - Size of node in bytes
    *
    * RETURN:      The allocated node - aborts on allocation failure
    *
    * DESCRIPTION: Allocate a resource description node and the resource
    *              descriptor itself (the nodes are used to link descriptors).
    *
    ******************************************************************************/
   
   ASL_RESOURCE_NODE *
   RsAllocateResourceNode (
       UINT32                  Size)
   {
       ASL_RESOURCE_NODE       *Rnode;
   
   
       /* Allocate the node */
   
       Rnode = UtLocalCalloc (sizeof (ASL_RESOURCE_NODE));
   
       /* Allocate the resource descriptor itself */
   
       Rnode->Buffer = UtLocalCalloc (Size);
       Rnode->BufferLength = Size;
       return (Rnode);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsCreateResourceField
    *
    * PARAMETERS:  Op              - Resource field node
    *              Name            - Name of the field (Used only to reference
    *                                the field in the ASL, not in the AML)
    *              ByteOffset      - Offset from the field start
    *              BitOffset       - Additional bit offset
    *              BitLength       - Number of bits in the field
    *
    * RETURN:      None, sets fields within the input node
    *
    * DESCRIPTION: Utility function to generate a named bit field within a
    *              resource descriptor. Mark a node as 1) a field in a resource
    *              descriptor, and 2) set the value to be a BIT offset
    *
    ******************************************************************************/
   
   void
   RsCreateResourceField (
       ACPI_PARSE_OBJECT       *Op,
       char                    *Name,
       UINT32                  ByteOffset,
       UINT32                  BitOffset,
       UINT32                  BitLength)
   {
   
       Op->Asl.ExternalName = Name;
       Op->Asl.CompileFlags |= OP_IS_RESOURCE_FIELD;
   
       Op->Asl.Value.Tag.BitOffset = (ByteOffset * 8) + BitOffset;
       Op->Asl.Value.Tag.BitLength = BitLength;
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsSetFlagBits
    *
    * PARAMETERS:  *Flags          - Pointer to the flag byte
    *              Op              - Flag initialization node
    *              Position        - Bit position within the flag byte
    *              Default         - Used if the node is DEFAULT.
    *
    * RETURN:      Sets bits within the *Flags output byte.
    *
    * DESCRIPTION: Set a bit in a cumulative flags word from an initialization
    *              node. Will use a default value if the node is DEFAULT, meaning
    *              that no value was specified in the ASL. Used to merge multiple
    *              keywords into a single flags byte.
    *
    ******************************************************************************/
   
   void
   RsSetFlagBits (
       UINT8                   *Flags,
       ACPI_PARSE_OBJECT       *Op,
       UINT8                   Position,
       UINT8                   DefaultBit)
   {
   
       if (Op->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG)
       {
           /* Use the default bit */
   
           *Flags |= (DefaultBit << Position);
       }
       else
       {
           /* Use the bit specified in the initialization node */
   
           *Flags |= (((UINT8) Op->Asl.Value.Integer) << Position);
       }
   }
   
   
   void
   RsSetFlagBits16 (
       UINT16                  *Flags,
       ACPI_PARSE_OBJECT       *Op,
       UINT8                   Position,
       UINT8                   DefaultBit)
   {
   
       if (Op->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG)
       {
           /* Use the default bit */
   
           *Flags |= (DefaultBit << Position);
       }
       else
       {
           /* Use the bit specified in the initialization node */
   
           *Flags |= (((UINT16) Op->Asl.Value.Integer) << Position);
       }
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsCompleteNodeAndGetNext
    *
    * PARAMETERS:  Op            - Resource node to be completed
    *
    * RETURN:      The next peer to the input node.
    *
    * DESCRIPTION: Mark the current node completed and return the next peer.
    *              The node ParseOpcode is set to DEFAULT_ARG, meaning that
    *              this node is to be ignored from now on.
    *
    ******************************************************************************/
   
   ACPI_PARSE_OBJECT *
   RsCompleteNodeAndGetNext (
       ACPI_PARSE_OBJECT       *Op)
   {
   
       /* Mark this node unused */
   
       Op->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
   
       /* Move on to the next peer node in the initializer list */
   
       return (ASL_GET_PEER_NODE (Op));
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsCheckListForDuplicates
    *
    * PARAMETERS:  Op                  - First op in the initializer list
    *
    * RETURN:      None
    *
    * DESCRIPTION: Check an initializer list for duplicate values. Emits an error
    *              if any duplicates are found.
    *
    ******************************************************************************/
   
   void
   RsCheckListForDuplicates (
       ACPI_PARSE_OBJECT       *Op)
   {
       ACPI_PARSE_OBJECT       *NextValueOp = Op;
       ACPI_PARSE_OBJECT       *NextOp;
       UINT32                  Value;
   
   
       if (!Op)
       {
           return;
       }
   
       /* Search list once for each value in the list */
   
       while (NextValueOp)
       {
           Value = (UINT32) NextValueOp->Asl.Value.Integer;
   
           /* Compare this value to all remaining values in the list */
   
           NextOp = ASL_GET_PEER_NODE (NextValueOp);
           while (NextOp)
           {
               if (NextOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
               {
                   /* Compare values */
   
                   if (Value == (UINT32) NextOp->Asl.Value.Integer)
                   {
                       /* Emit error only once per duplicate node */
   
                       if (!(NextOp->Asl.CompileFlags & OP_IS_DUPLICATE))
                       {
                           NextOp->Asl.CompileFlags |= OP_IS_DUPLICATE;
                           AslError (ASL_ERROR, ASL_MSG_DUPLICATE_ITEM,
                               NextOp, NULL);
                       }
                   }
               }
   
               NextOp = ASL_GET_PEER_NODE (NextOp);
           }
   
           NextValueOp = ASL_GET_PEER_NODE (NextValueOp);
       }
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsDoOneResourceDescriptor
    *
    * PARAMETERS:  DescriptorTypeOp    - Parent parse node of the descriptor
    *              CurrentByteOffset   - Offset in the resource descriptor
    *                                    buffer.
    *
    * RETURN:      A valid resource node for the descriptor
    *
    * DESCRIPTION: Dispatches the processing of one resource descriptor
    *
    ******************************************************************************/
   
   ASL_RESOURCE_NODE *
   RsDoOneResourceDescriptor (
       ASL_RESOURCE_INFO       *Info,
       UINT8                   *State)
   {
       ASL_RESOURCE_NODE       *Rnode = NULL;
   
   
       /* Construct the resource */
   
       switch (Info->DescriptorTypeOp->Asl.ParseOpcode)
       {
       case PARSEOP_DMA:
   
           Rnode = RsDoDmaDescriptor (Info);
           break;
   
       case PARSEOP_FIXEDDMA:
   
           Rnode = RsDoFixedDmaDescriptor (Info);
           break;
   
       case PARSEOP_DWORDIO:
   
           Rnode = RsDoDwordIoDescriptor (Info);
           break;
   
       case PARSEOP_DWORDMEMORY:
   
           Rnode = RsDoDwordMemoryDescriptor (Info);
           break;
   
       case PARSEOP_DWORDSPACE:
   
           Rnode = RsDoDwordSpaceDescriptor (Info);
           break;
   
       case PARSEOP_ENDDEPENDENTFN:
   
           switch (*State)
           {
           case ACPI_RSTATE_NORMAL:
   
               AslError (ASL_ERROR, ASL_MSG_MISSING_STARTDEPENDENT,
                   Info->DescriptorTypeOp, NULL);
               break;
   
           case ACPI_RSTATE_START_DEPENDENT:
   
               AslError (ASL_ERROR, ASL_MSG_DEPENDENT_NESTING,
                   Info->DescriptorTypeOp, NULL);
               break;
   
           case ACPI_RSTATE_DEPENDENT_LIST:
           default:
   
               break;
           }
   
           *State = ACPI_RSTATE_NORMAL;
           Rnode = RsDoEndDependentDescriptor (Info);
           break;
   
       case PARSEOP_ENDTAG:
   
           Rnode = RsDoEndTagDescriptor (Info);
           break;
   
       case PARSEOP_EXTENDEDIO:
   
           Rnode = RsDoExtendedIoDescriptor (Info);
           break;
   
       case PARSEOP_EXTENDEDMEMORY:
   
           Rnode = RsDoExtendedMemoryDescriptor (Info);
           break;
   
       case PARSEOP_EXTENDEDSPACE:
   
           Rnode = RsDoExtendedSpaceDescriptor (Info);
           break;
   
       case PARSEOP_FIXEDIO:
   
           Rnode = RsDoFixedIoDescriptor (Info);
           break;
   
       case PARSEOP_INTERRUPT:
   
           Rnode = RsDoInterruptDescriptor (Info);
           break;
   
       case PARSEOP_IO:
   
           Rnode = RsDoIoDescriptor (Info);
           break;
   
       case PARSEOP_IRQ:
   
           Rnode = RsDoIrqDescriptor (Info);
           break;
   
       case PARSEOP_IRQNOFLAGS:
   
           Rnode = RsDoIrqNoFlagsDescriptor (Info);
           break;
   
       case PARSEOP_MEMORY24:
   
           Rnode = RsDoMemory24Descriptor (Info);
           break;
   
       case PARSEOP_MEMORY32:
   
           Rnode = RsDoMemory32Descriptor (Info);
           break;
   
       case PARSEOP_MEMORY32FIXED:
   
           Rnode = RsDoMemory32FixedDescriptor (Info);
           break;
   
       case PARSEOP_QWORDIO:
   
           Rnode = RsDoQwordIoDescriptor (Info);
           break;
   
       case PARSEOP_QWORDMEMORY:
   
           Rnode = RsDoQwordMemoryDescriptor (Info);
           break;
   
       case PARSEOP_QWORDSPACE:
   
           Rnode = RsDoQwordSpaceDescriptor (Info);
           break;
   
       case PARSEOP_REGISTER:
   
           Rnode = RsDoGeneralRegisterDescriptor (Info);
           break;
   
       case PARSEOP_STARTDEPENDENTFN:
   
           switch (*State)
           {
           case ACPI_RSTATE_START_DEPENDENT:
   
               AslError (ASL_ERROR, ASL_MSG_DEPENDENT_NESTING,
                   Info->DescriptorTypeOp, NULL);
               break;
   
           case ACPI_RSTATE_NORMAL:
           case ACPI_RSTATE_DEPENDENT_LIST:
           default:
   
               break;
           }
   
           *State = ACPI_RSTATE_START_DEPENDENT;
           Rnode = RsDoStartDependentDescriptor (Info);
           *State = ACPI_RSTATE_DEPENDENT_LIST;
           break;
   
       case PARSEOP_STARTDEPENDENTFN_NOPRI:
   
           switch (*State)
           {
           case ACPI_RSTATE_START_DEPENDENT:
   
               AslError (ASL_ERROR, ASL_MSG_DEPENDENT_NESTING,
                   Info->DescriptorTypeOp, NULL);
               break;
   
           case ACPI_RSTATE_NORMAL:
           case ACPI_RSTATE_DEPENDENT_LIST:
           default:
   
               break;
           }
   
           *State = ACPI_RSTATE_START_DEPENDENT;
           Rnode = RsDoStartDependentNoPriDescriptor (Info);
           *State = ACPI_RSTATE_DEPENDENT_LIST;
           break;
   
       case PARSEOP_VENDORLONG:
   
           Rnode = RsDoVendorLargeDescriptor (Info);
           break;
   
       case PARSEOP_VENDORSHORT:
   
           Rnode = RsDoVendorSmallDescriptor (Info);
           break;
   
       case PARSEOP_WORDBUSNUMBER:
   
           Rnode = RsDoWordBusNumberDescriptor (Info);
           break;
   
       case PARSEOP_WORDIO:
   
           Rnode = RsDoWordIoDescriptor (Info);
           break;
   
       case PARSEOP_WORDSPACE:
   
           Rnode = RsDoWordSpaceDescriptor (Info);
           break;
   
       case PARSEOP_GPIO_INT:
   
           Rnode = RsDoGpioIntDescriptor (Info);
           break;
   
       case PARSEOP_GPIO_IO:
   
           Rnode = RsDoGpioIoDescriptor (Info);
           break;
   
       case PARSEOP_I2C_SERIALBUS:
       case PARSEOP_I2C_SERIALBUS_V2:
   
           Rnode = RsDoI2cSerialBusDescriptor (Info);
           break;
   
       case PARSEOP_SPI_SERIALBUS:
       case PARSEOP_SPI_SERIALBUS_V2:
   
           Rnode = RsDoSpiSerialBusDescriptor (Info);
           break;
   
       case PARSEOP_UART_SERIALBUS:
       case PARSEOP_UART_SERIALBUS_V2:
   
           Rnode = RsDoUartSerialBusDescriptor (Info);
           break;
   
       case PARSEOP_CSI2_SERIALBUS:
   
           Rnode = RsDoCsi2SerialBusDescriptor (Info);
           break;
   
       case PARSEOP_PINCONFIG:
   
          Rnode = RsDoPinConfigDescriptor (Info);
          break;
  
      case PARSEOP_PINFUNCTION:
  
          Rnode = RsDoPinFunctionDescriptor (Info);
          break;
  
      case PARSEOP_PINGROUP:
  
          Rnode = RsDoPinGroupDescriptor (Info);
          break;
  
      case PARSEOP_PINGROUPFUNCTION:
  
          Rnode = RsDoPinGroupFunctionDescriptor (Info);
          break;
  
      case PARSEOP_PINGROUPCONFIG:
  
          Rnode = RsDoPinGroupConfigDescriptor (Info);
          break;
  
      case PARSEOP_DEFAULT_ARG:
  
          /* Just ignore any of these, they are used as fillers/placeholders */
          break;
  
      default:
  
          printf ("Unknown resource descriptor type [%s]\n",
              Info->DescriptorTypeOp->Asl.ParseOpName);
          break;
      }
  
      /*
       * Mark original node as unused, but head of a resource descriptor.
       * This allows the resource to be installed in the namespace so that
       * references to the descriptor can be resolved.
       */
      Info->DescriptorTypeOp->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
      Info->DescriptorTypeOp->Asl.CompileFlags = OP_IS_RESOURCE_DESC;
      Info->DescriptorTypeOp->Asl.Value.Integer = Info->CurrentByteOffset;
  
      if (Rnode)
      {
          Info->DescriptorTypeOp->Asl.FinalAmlLength = Rnode->BufferLength;
          Info->DescriptorTypeOp->Asl.Extra =
              ((AML_RESOURCE *) Rnode->Buffer)->DescriptorType;
      }
  
      return (Rnode);
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    RsLinkDescriptorChain
   *
   * PARAMETERS:  PreviousRnode       - Pointer to the node that will be previous
   *                                    to the linked node,  At exit, set to the
   *                                    last node in the new chain.
   *              Rnode               - Resource node to link into the list
   *
   * RETURN:      Cumulative buffer byte offset of the new segment of chain
   *
   * DESCRIPTION: Link a descriptor chain at the end of an existing chain.
   *
   ******************************************************************************/
  
  UINT32
  RsLinkDescriptorChain (
      ASL_RESOURCE_NODE       **PreviousRnode,
      ASL_RESOURCE_NODE       *Rnode)
  {
      ASL_RESOURCE_NODE       *LastRnode;
      UINT32                  CurrentByteOffset;
  
  
      /* Anything to do? */
  
      if (!Rnode)
      {
          return (0);
      }
  
      /* Point the previous node to the new node */
  
      (*PreviousRnode)->Next = Rnode;
      CurrentByteOffset = Rnode->BufferLength;
  
      /* Walk to the end of the chain headed by Rnode */
  
      LastRnode = Rnode;
      while (LastRnode->Next)
      {
          LastRnode = LastRnode->Next;
          CurrentByteOffset += LastRnode->BufferLength;
      }
  
      /* Previous node becomes the last node in the chain */
  
      *PreviousRnode = LastRnode;
      return (CurrentByteOffset);
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    RsDoResourceTemplate
   *
   * PARAMETERS:  Op        - Parent of a resource template list
   *
   * RETURN:      None. Sets input node to point to a list of AML code
   *
   * DESCRIPTION: Merge a list of resource descriptors into a single AML buffer,
   *              in preparation for output to the AML output file.
   *
   ******************************************************************************/
  
  void
  RsDoResourceTemplate (
      ACPI_PARSE_OBJECT       *Op)
  {
      ACPI_PARSE_OBJECT       *BufferLengthOp;
      ACPI_PARSE_OBJECT       *BufferOp;
      ACPI_PARSE_OBJECT       *DescriptorTypeOp;
      ACPI_PARSE_OBJECT       *LastOp = NULL;
      UINT32                  CurrentByteOffset = 0;
      ASL_RESOURCE_NODE       HeadRnode;
      ASL_RESOURCE_NODE       *PreviousRnode;
      ASL_RESOURCE_NODE       *Rnode;
      ASL_RESOURCE_INFO       Info;
      UINT8                   State;
  
  
      /* Mark parent as containing a resource template */
  
      if (Op->Asl.Parent)
      {
          Op->Asl.Parent->Asl.CompileFlags |= OP_IS_RESOURCE_DESC;
      }
  
      /* ResourceTemplate Opcode is first (Op) */
      /* Buffer Length node is first child */
  
      BufferLengthOp = ASL_GET_CHILD_NODE (Op);
  
      /* Buffer Op is first peer */
  
      BufferOp = ASL_GET_PEER_NODE (BufferLengthOp);
  
      /* First Descriptor type is next */
  
      DescriptorTypeOp = ASL_GET_PEER_NODE (BufferOp);
  
      /* DEFAULT_ARG indicates null template - ResourceTemplate(){} */
  
      if (DescriptorTypeOp->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG)
      {
          AslError (ASL_WARNING, ASL_MSG_NULL_RESOURCE_TEMPLATE,
              DescriptorTypeOp, DescriptorTypeOp->Asl.Value.String);
      }
  
      /*
       * Process all resource descriptors in the list
       * Note: It is assumed that the EndTag node has been automatically
       * inserted at the end of the template by the parser.
       */
      State = ACPI_RSTATE_NORMAL;
      PreviousRnode = &HeadRnode;
      while (DescriptorTypeOp)
      {
          /* Save information for optional mapfile */
  
          if (Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_CONNECTION)
          {
              Info.MappingOp = Op->Asl.Parent;
          }
          else
          {
              Info.MappingOp = DescriptorTypeOp;
          }
  
          Info.DescriptorTypeOp = DescriptorTypeOp;
          Info.CurrentByteOffset = CurrentByteOffset;
  
          DescriptorTypeOp->Asl.CompileFlags |= OP_IS_RESOURCE_DESC;
          Rnode = RsDoOneResourceDescriptor (&Info, &State);
  
          /*
           * Update current byte offset to indicate the number of bytes from the
           * start of the buffer. Buffer can include multiple descriptors, we
           * must keep track of the offset of not only each descriptor, but each
           * element (field) within each descriptor as well.
           */
          CurrentByteOffset += RsLinkDescriptorChain (&PreviousRnode, Rnode);
  
          /* Get the next descriptor in the list */
  
          LastOp = DescriptorTypeOp;
          DescriptorTypeOp = ASL_GET_PEER_NODE (DescriptorTypeOp);
      }
  
      if (State == ACPI_RSTATE_DEPENDENT_LIST)
      {
          if (LastOp)
          {
              LastOp = LastOp->Asl.Parent;
          }
          AslError (ASL_ERROR, ASL_MSG_MISSING_ENDDEPENDENT, LastOp, NULL);
      }
  
      /*
       * Transform the nodes into the following
       *
       * Op           -> AML_BUFFER_OP
       * First Child  -> BufferLength
       * Second Child -> Descriptor Buffer (raw byte data)
       */
      Op->Asl.ParseOpcode               = PARSEOP_BUFFER;
      Op->Asl.AmlOpcode                 = AML_BUFFER_OP;
      Op->Asl.CompileFlags              = OP_AML_PACKAGE | OP_IS_RESOURCE_DESC;
      UtSetParseOpName (Op);
  
      BufferLengthOp->Asl.ParseOpcode   = PARSEOP_INTEGER;
      BufferLengthOp->Asl.Value.Integer = CurrentByteOffset;
      (void) OpcSetOptimalIntegerSize (BufferLengthOp);
      UtSetParseOpName (BufferLengthOp);
  
      BufferOp->Asl.ParseOpcode         = PARSEOP_RAW_DATA;
      BufferOp->Asl.AmlOpcode           = AML_RAW_DATA_CHAIN;
      BufferOp->Asl.AmlOpcodeLength     = 0;
      BufferOp->Asl.AmlLength           = CurrentByteOffset;
      BufferOp->Asl.Value.Buffer        = ACPI_CAST_PTR (UINT8,  HeadRnode.Next);
      BufferOp->Asl.CompileFlags       |= OP_IS_RESOURCE_DATA;
      UtSetParseOpName (BufferOp);
  
      return;
  }

Cache object: 63522ccf09ce23828caccfbf1bac82e4