FreeBSD/Linux Kernel Cross Reference
sys/contrib/dev/acpica/compiler/aslrestype1.c

     /******************************************************************************
      *
      * Module Name: aslrestype1 - Miscellaneous small resource descriptors
      *
      *****************************************************************************/
     
     /******************************************************************************
      *
      * 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"
   
   #define _COMPONENT          ACPI_COMPILER
           ACPI_MODULE_NAME    ("aslrestype1")
   
   /*
    * This module contains miscellaneous small resource descriptors:
    *
    * EndTag
    * EndDependentFn
    * Memory24
    * Memory32
    * Memory32Fixed
    * StartDependentFn
    * StartDependentFnNoPri
    * VendorShort
    */
   
   /*******************************************************************************
    *
    * FUNCTION:    RsDoEndTagDescriptor
    *
    * PARAMETERS:  Info                - Parse Op and resource template offset
    *
    * RETURN:      Completed resource node
    *
    * DESCRIPTION: Construct a short "EndDependentFn" descriptor
    *
    ******************************************************************************/
   
   ASL_RESOURCE_NODE *
   RsDoEndTagDescriptor (
       ASL_RESOURCE_INFO       *Info)
   {
       AML_RESOURCE            *Descriptor;
       ASL_RESOURCE_NODE       *Rnode;
   
   
       Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_END_TAG));
   
       Descriptor = Rnode->Buffer;
       Descriptor->EndTag.DescriptorType = ACPI_RESOURCE_NAME_END_TAG |
                                           ASL_RDESC_END_TAG_SIZE;
       Descriptor->EndTag.Checksum = 0;
       return (Rnode);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsDoEndDependentDescriptor
    *
    * PARAMETERS:  Info                - Parse Op and resource template offset
    *
    * RETURN:      Completed resource node
    *
    * DESCRIPTION: Construct a short "EndDependentFn" descriptor
    *
    ******************************************************************************/
   
   ASL_RESOURCE_NODE *
   RsDoEndDependentDescriptor (
       ASL_RESOURCE_INFO       *Info)
   {
       AML_RESOURCE            *Descriptor;
       ASL_RESOURCE_NODE       *Rnode;
   
   
       Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_END_DEPENDENT));
   
       Descriptor = Rnode->Buffer;
       Descriptor->EndDpf.DescriptorType =
           ACPI_RESOURCE_NAME_END_DEPENDENT | ASL_RDESC_END_DEPEND_SIZE;
       return (Rnode);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsDoMemory24Descriptor
    *
    * PARAMETERS:  Info                - Parse Op and resource template offset
    *
    * RETURN:      Completed resource node
    *
    * DESCRIPTION: Construct a short "Memory24" descriptor
    *
    ******************************************************************************/
   
   ASL_RESOURCE_NODE *
   RsDoMemory24Descriptor (
       ASL_RESOURCE_INFO       *Info)
   {
       AML_RESOURCE            *Descriptor;
       ACPI_PARSE_OBJECT       *InitializerOp;
       ACPI_PARSE_OBJECT       *MinOp = NULL;
       ACPI_PARSE_OBJECT       *MaxOp = NULL;
       ACPI_PARSE_OBJECT       *LengthOp = NULL;
       ASL_RESOURCE_NODE       *Rnode;
       UINT32                  CurrentByteOffset;
       UINT32                  i;
   
   
       InitializerOp = Info->DescriptorTypeOp->Asl.Child;
       CurrentByteOffset = Info->CurrentByteOffset;
       Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_MEMORY24));
   
       Descriptor = Rnode->Buffer;
       Descriptor->Memory24.DescriptorType = ACPI_RESOURCE_NAME_MEMORY24;
       Descriptor->Memory24.ResourceLength = 9;
   
       /* Process all child initialization nodes */
   
       for (i = 0; InitializerOp; i++)
       {
           switch (i)
           {
           case 0: /* Read/Write type */
   
               RsSetFlagBits (&Descriptor->Memory24.Flags, InitializerOp, 0, 1);
               RsCreateBitField (InitializerOp, ACPI_RESTAG_READWRITETYPE,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Memory24.Flags), 0);
               break;
   
           case 1: /* Min Address */
   
               Descriptor->Memory24.Minimum = (UINT16) InitializerOp->Asl.Value.Integer;
               RsCreateWordField (InitializerOp, ACPI_RESTAG_MINADDR,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Memory24.Minimum));
               MinOp = InitializerOp;
               break;
   
           case 2: /* Max Address */
   
               Descriptor->Memory24.Maximum = (UINT16) InitializerOp->Asl.Value.Integer;
               RsCreateWordField (InitializerOp, ACPI_RESTAG_MAXADDR,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Memory24.Maximum));
               MaxOp = InitializerOp;
               break;
   
           case 3: /* Alignment */
   
               Descriptor->Memory24.Alignment = (UINT16) InitializerOp->Asl.Value.Integer;
               RsCreateWordField (InitializerOp, ACPI_RESTAG_ALIGNMENT,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Memory24.Alignment));
               break;
   
           case 4: /* Length */
   
               Descriptor->Memory24.AddressLength = (UINT16) InitializerOp->Asl.Value.Integer;
               RsCreateWordField (InitializerOp, ACPI_RESTAG_LENGTH,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Memory24.AddressLength));
               LengthOp = InitializerOp;
               break;
   
           case 5: /* Name */
   
               UtAttachNamepathToOwner (Info->DescriptorTypeOp, InitializerOp);
               break;
   
           default:
   
               AslError (ASL_ERROR, ASL_MSG_RESOURCE_LIST, InitializerOp, NULL);
               break;
           }
   
           InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
       }
   
       /* Validate the Min/Max/Len/Align values (Alignment==0 means 64K) */
   
       RsSmallAddressCheck (ACPI_RESOURCE_NAME_MEMORY24,
           Descriptor->Memory24.Minimum,
           Descriptor->Memory24.Maximum,
           Descriptor->Memory24.AddressLength,
           Descriptor->Memory24.Alignment,
           MinOp, MaxOp, LengthOp, NULL, Info->DescriptorTypeOp);
   
       return (Rnode);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsDoMemory32Descriptor
    *
    * PARAMETERS:  Info                - Parse Op and resource template offset
    *
    * RETURN:      Completed resource node
    *
    * DESCRIPTION: Construct a short "Memory32" descriptor
    *
    ******************************************************************************/
   
   ASL_RESOURCE_NODE *
   RsDoMemory32Descriptor (
       ASL_RESOURCE_INFO       *Info)
   {
       AML_RESOURCE            *Descriptor;
       ACPI_PARSE_OBJECT       *InitializerOp;
       ACPI_PARSE_OBJECT       *MinOp = NULL;
       ACPI_PARSE_OBJECT       *MaxOp = NULL;
       ACPI_PARSE_OBJECT       *LengthOp = NULL;
       ACPI_PARSE_OBJECT       *AlignOp = NULL;
       ASL_RESOURCE_NODE       *Rnode;
       UINT32                  CurrentByteOffset;
       UINT32                  i;
   
   
       InitializerOp = Info->DescriptorTypeOp->Asl.Child;
       CurrentByteOffset = Info->CurrentByteOffset;
       Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_MEMORY32));
   
       Descriptor = Rnode->Buffer;
       Descriptor->Memory32.DescriptorType = ACPI_RESOURCE_NAME_MEMORY32;
       Descriptor->Memory32.ResourceLength = 17;
   
       /* Process all child initialization nodes */
   
       for (i = 0; InitializerOp; i++)
       {
           switch (i)
           {
           case 0: /* Read/Write type */
   
               RsSetFlagBits (&Descriptor->Memory32.Flags, InitializerOp, 0, 1);
               RsCreateBitField (InitializerOp, ACPI_RESTAG_READWRITETYPE,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Memory32.Flags), 0);
               break;
   
           case 1:  /* Min Address */
   
               Descriptor->Memory32.Minimum = (UINT32) InitializerOp->Asl.Value.Integer;
               RsCreateDwordField (InitializerOp, ACPI_RESTAG_MINADDR,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Memory32.Minimum));
               MinOp = InitializerOp;
               break;
   
           case 2: /* Max Address */
   
               Descriptor->Memory32.Maximum = (UINT32) InitializerOp->Asl.Value.Integer;
               RsCreateDwordField (InitializerOp, ACPI_RESTAG_MAXADDR,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Memory32.Maximum));
               MaxOp = InitializerOp;
               break;
   
           case 3: /* Alignment */
   
               Descriptor->Memory32.Alignment = (UINT32) InitializerOp->Asl.Value.Integer;
               RsCreateDwordField (InitializerOp, ACPI_RESTAG_ALIGNMENT,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Memory32.Alignment));
               AlignOp = InitializerOp;
               break;
   
           case 4: /* Length */
   
               Descriptor->Memory32.AddressLength = (UINT32) InitializerOp->Asl.Value.Integer;
               RsCreateDwordField (InitializerOp, ACPI_RESTAG_LENGTH,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Memory32.AddressLength));
               LengthOp = InitializerOp;
               break;
   
           case 5: /* Name */
   
               UtAttachNamepathToOwner (Info->DescriptorTypeOp, InitializerOp);
               break;
   
           default:
   
               AslError (ASL_ERROR, ASL_MSG_RESOURCE_LIST, InitializerOp, NULL);
               break;
           }
   
           InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
       }
   
       /* Validate the Min/Max/Len/Align values */
   
       RsSmallAddressCheck (ACPI_RESOURCE_NAME_MEMORY32,
           Descriptor->Memory32.Minimum,
           Descriptor->Memory32.Maximum,
           Descriptor->Memory32.AddressLength,
           Descriptor->Memory32.Alignment,
           MinOp, MaxOp, LengthOp, AlignOp, Info->DescriptorTypeOp);
   
       return (Rnode);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsDoMemory32FixedDescriptor
    *
    * PARAMETERS:  Info                - Parse Op and resource template offset
    *
    * RETURN:      Completed resource node
    *
    * DESCRIPTION: Construct a short "Memory32Fixed" descriptor
    *
    ******************************************************************************/
   
   ASL_RESOURCE_NODE *
   RsDoMemory32FixedDescriptor (
       ASL_RESOURCE_INFO       *Info)
   {
       AML_RESOURCE            *Descriptor;
       ACPI_PARSE_OBJECT       *InitializerOp;
       ASL_RESOURCE_NODE       *Rnode;
       UINT32                  CurrentByteOffset;
       UINT32                  i;
   
   
       InitializerOp = Info->DescriptorTypeOp->Asl.Child;
       CurrentByteOffset = Info->CurrentByteOffset;
       Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_FIXED_MEMORY32));
   
       Descriptor = Rnode->Buffer;
       Descriptor->FixedMemory32.DescriptorType = ACPI_RESOURCE_NAME_FIXED_MEMORY32;
       Descriptor->FixedMemory32.ResourceLength = 9;
   
       /* Process all child initialization nodes */
   
       for (i = 0; InitializerOp; i++)
       {
           switch (i)
           {
           case 0: /* Read/Write type */
   
               RsSetFlagBits (&Descriptor->FixedMemory32.Flags, InitializerOp, 0, 1);
               RsCreateBitField (InitializerOp, ACPI_RESTAG_READWRITETYPE,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (FixedMemory32.Flags), 0);
               break;
   
           case 1: /* Address */
   
               Descriptor->FixedMemory32.Address = (UINT32) InitializerOp->Asl.Value.Integer;
               RsCreateDwordField (InitializerOp, ACPI_RESTAG_BASEADDRESS,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (FixedMemory32.Address));
               break;
   
           case 2: /* Length */
   
               Descriptor->FixedMemory32.AddressLength = (UINT32) InitializerOp->Asl.Value.Integer;
               RsCreateDwordField (InitializerOp, ACPI_RESTAG_LENGTH,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (FixedMemory32.AddressLength));
               break;
   
           case 3: /* Name */
   
               UtAttachNamepathToOwner (Info->DescriptorTypeOp, InitializerOp);
               break;
   
           default:
   
               AslError (ASL_ERROR, ASL_MSG_RESOURCE_LIST, InitializerOp, NULL);
               break;
           }
   
           InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
       }
   
       return (Rnode);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsDoStartDependentDescriptor
    *
    * PARAMETERS:  Info                - Parse Op and resource template offset
    *
    * RETURN:      Completed resource node
    *
    * DESCRIPTION: Construct a short "StartDependentFn" descriptor
    *
    ******************************************************************************/
   
   ASL_RESOURCE_NODE *
   RsDoStartDependentDescriptor (
       ASL_RESOURCE_INFO       *Info)
   {
       AML_RESOURCE            *Descriptor;
       ACPI_PARSE_OBJECT       *InitializerOp;
       ASL_RESOURCE_NODE       *Rnode;
       ASL_RESOURCE_NODE       *PreviousRnode;
       ASL_RESOURCE_NODE       *NextRnode;
       ASL_RESOURCE_INFO       NextInfo;
       UINT32                  CurrentByteOffset;
       UINT32                  i;
       UINT8                   State;
   
   
       InitializerOp = Info->DescriptorTypeOp->Asl.Child;
       CurrentByteOffset = Info->CurrentByteOffset;
       Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_START_DEPENDENT));
   
       PreviousRnode = Rnode;
       Descriptor = Rnode->Buffer;
   
       /* Increment offset past StartDependent descriptor */
   
       CurrentByteOffset += sizeof (AML_RESOURCE_START_DEPENDENT);
   
       /* Descriptor has priority byte */
   
       Descriptor->StartDpf.DescriptorType =
           ACPI_RESOURCE_NAME_START_DEPENDENT | (ASL_RDESC_ST_DEPEND_SIZE + 0x01);
   
       /* Process all child initialization nodes */
   
       State = ACPI_RSTATE_START_DEPENDENT;
       for (i = 0; InitializerOp; i++)
       {
           switch (i)
           {
           case 0: /* Compatibility Priority */
   
               if ((UINT8) InitializerOp->Asl.Value.Integer > 2)
               {
                   AslError (ASL_ERROR, ASL_MSG_INVALID_PRIORITY,
                       InitializerOp, NULL);
               }
   
               RsSetFlagBits (&Descriptor->StartDpf.Flags, InitializerOp, 0, 0);
               break;
   
           case 1: /* Performance/Robustness Priority */
   
               if ((UINT8) InitializerOp->Asl.Value.Integer > 2)
               {
                   AslError (ASL_ERROR, ASL_MSG_INVALID_PERFORMANCE,
                       InitializerOp, NULL);
               }
   
               RsSetFlagBits (&Descriptor->StartDpf.Flags, InitializerOp, 2, 0);
               break;
   
           default:
   
               NextInfo.CurrentByteOffset = CurrentByteOffset;
               NextInfo.DescriptorTypeOp = InitializerOp;
   
               NextRnode = RsDoOneResourceDescriptor (&NextInfo, &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, NextRnode);
               break;
           }
   
           InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
       }
   
       return (Rnode);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsDoStartDependentNoPriDescriptor
    *
    * PARAMETERS:  Info                - Parse Op and resource template offset
    *
    * RETURN:      Completed resource node
    *
    * DESCRIPTION: Construct a short "StartDependentNoPri" descriptor
    *
    ******************************************************************************/
   
   ASL_RESOURCE_NODE *
   RsDoStartDependentNoPriDescriptor (
       ASL_RESOURCE_INFO       *Info)
   {
       AML_RESOURCE            *Descriptor;
       ACPI_PARSE_OBJECT       *InitializerOp;
       ASL_RESOURCE_NODE       *Rnode;
       ASL_RESOURCE_NODE       *PreviousRnode;
       ASL_RESOURCE_NODE       *NextRnode;
       ASL_RESOURCE_INFO       NextInfo;
       UINT32                  CurrentByteOffset;
       UINT8                   State;
   
   
       InitializerOp = Info->DescriptorTypeOp->Asl.Child;
       CurrentByteOffset = Info->CurrentByteOffset;
       Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_START_DEPENDENT_NOPRIO));
   
       Descriptor = Rnode->Buffer;
       Descriptor->StartDpf.DescriptorType =
           ACPI_RESOURCE_NAME_START_DEPENDENT | ASL_RDESC_ST_DEPEND_SIZE;
       PreviousRnode = Rnode;
   
       /* Increment offset past StartDependentNoPri descriptor */
   
       CurrentByteOffset += sizeof (AML_RESOURCE_START_DEPENDENT_NOPRIO);
   
       /* Process all child initialization nodes */
   
       State = ACPI_RSTATE_START_DEPENDENT;
       while (InitializerOp)
       {
           NextInfo.CurrentByteOffset = CurrentByteOffset;
           NextInfo.DescriptorTypeOp = InitializerOp;
   
           NextRnode = RsDoOneResourceDescriptor (&NextInfo, &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, NextRnode);
   
           InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
       }
   
       return (Rnode);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsDoVendorSmallDescriptor
    *
    * PARAMETERS:  Info                - Parse Op and resource template offset
    *
    * RETURN:      Completed resource node
    *
    * DESCRIPTION: Construct a short "VendorShort" descriptor
    *
    ******************************************************************************/
   
   ASL_RESOURCE_NODE *
   RsDoVendorSmallDescriptor (
       ASL_RESOURCE_INFO       *Info)
   {
       AML_RESOURCE            *Descriptor;
       ACPI_PARSE_OBJECT       *InitializerOp;
       ASL_RESOURCE_NODE       *Rnode;
       UINT8                   *VendorData;
       UINT32                  i;
   
   
       InitializerOp = Info->DescriptorTypeOp->Asl.Child;
   
       /* Allocate worst case - 7 vendor bytes */
   
       Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_VENDOR_SMALL) + 7);
   
       Descriptor = Rnode->Buffer;
       Descriptor->VendorSmall.DescriptorType = ACPI_RESOURCE_NAME_VENDOR_SMALL;
       VendorData = ((UINT8 *) Descriptor) + sizeof (AML_RESOURCE_SMALL_HEADER);
   
       /* Process all child initialization nodes */
   
       InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
       for (i = 0; InitializerOp; i++)
       {
           if (InitializerOp->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG)
           {
               break;
           }
   
           /* Maximum 7 vendor data bytes allowed (0-6) */
   
           if (i >= 7)
           {
               AslError (ASL_ERROR, ASL_MSG_VENDOR_LIST, InitializerOp, NULL);
   
               /* Eat the excess initializers */
   
               while (InitializerOp)
               {
                   InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
               }
               break;
           }
   
           VendorData[i] = (UINT8) InitializerOp->Asl.Value.Integer;
           InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
       }
   
       /* Adjust the Rnode buffer size, so correct number of bytes are emitted */
   
       Rnode->BufferLength -= (7 - i);
   
       /* Set the length in the Type Tag */
   
       Descriptor->VendorSmall.DescriptorType |= (UINT8) i;
       return (Rnode);
   }

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