FreeBSD/Linux Kernel Cross Reference
sys/contrib/dev/acpica/compiler/aslrestype1i.c

     /******************************************************************************
      *
      * Module Name: aslrestype1i - Small I/O-related 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    ("aslrestype1i")
   
   /*
    * This module contains the I/O-related small resource descriptors:
    *
    * DMA
    * FixedDMA
    * FixedIO
    * IO
    * IRQ
    * IRQNoFlags
    */
   
   /*******************************************************************************
    *
    * FUNCTION:    RsDoDmaDescriptor
    *
    * PARAMETERS:  Info                - Parse Op and resource template offset
    *
    * RETURN:      Completed resource node
    *
    * DESCRIPTION: Construct a short "DMA" descriptor
    *
    ******************************************************************************/
   
   ASL_RESOURCE_NODE *
   RsDoDmaDescriptor (
       ASL_RESOURCE_INFO       *Info)
   {
       AML_RESOURCE            *Descriptor;
       ACPI_PARSE_OBJECT       *InitializerOp;
       ASL_RESOURCE_NODE       *Rnode;
       UINT32                  CurrentByteOffset;
       UINT32                  i;
       UINT8                   DmaChannelMask = 0;
       UINT8                   DmaChannels = 0;
   
   
       InitializerOp = Info->DescriptorTypeOp->Asl.Child;
       CurrentByteOffset = Info->CurrentByteOffset;
       Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_DMA));
   
       Descriptor = Rnode->Buffer;
       Descriptor->Dma.DescriptorType =
           ACPI_RESOURCE_NAME_DMA | ASL_RDESC_DMA_SIZE;
   
       /* Process all child initialization nodes */
   
       for (i = 0; InitializerOp; i++)
       {
           switch (i)
           {
           case 0: /* DMA type */
   
               RsSetFlagBits (&Descriptor->Dma.Flags, InitializerOp, 5, 0);
               RsCreateMultiBitField (InitializerOp, ACPI_RESTAG_DMATYPE,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Dma.Flags), 5, 2);
               break;
   
           case 1: /* Bus Master */
   
               RsSetFlagBits (&Descriptor->Dma.Flags, InitializerOp, 2, 0);
               RsCreateBitField (InitializerOp, ACPI_RESTAG_BUSMASTER,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Dma.Flags), 2);
               break;
   
           case 2: /* Xfer Type (transfer width) */
   
               RsSetFlagBits (&Descriptor->Dma.Flags, InitializerOp, 0, 0);
               RsCreateMultiBitField (InitializerOp, ACPI_RESTAG_XFERTYPE,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Dma.Flags), 0, 2);
               break;
   
           case 3: /* Name */
   
               UtAttachNamepathToOwner (Info->DescriptorTypeOp, InitializerOp);
               break;
   
           default:
   
               /* All DMA channel bytes are handled here, after flags and name */
   
               if (InitializerOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
               {
                   /* Up to 8 channels can be specified in the list */
   
                   DmaChannels++;
                   if (DmaChannels > 8)
                   {
                       AslError (ASL_ERROR, ASL_MSG_DMA_LIST,
                           InitializerOp, NULL);
                       return (Rnode);
                   }
   
                   /* Only DMA channels 0-7 are allowed (mask is 8 bits) */
   
                   if (InitializerOp->Asl.Value.Integer > 7)
                   {
                       AslError (ASL_ERROR, ASL_MSG_DMA_CHANNEL,
                           InitializerOp, NULL);
                   }
   
                   /* Build the mask */
   
                   DmaChannelMask |=
                       (1 << ((UINT8) InitializerOp->Asl.Value.Integer));
               }
   
               if (i == 4) /* case 4: First DMA byte */
               {
                   /* Check now for duplicates in list */
   
                   RsCheckListForDuplicates (InitializerOp);
   
                   /* Create a named field at the start of the list */
   
                   RsCreateByteField (InitializerOp, ACPI_RESTAG_DMA,
                       CurrentByteOffset +
                       ASL_RESDESC_OFFSET (Dma.DmaChannelMask));
               }
               break;
           }
   
           InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
       }
   
       /* Now we can set the channel mask */
   
       Descriptor->Dma.DmaChannelMask = DmaChannelMask;
       return (Rnode);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsDoFixedDmaDescriptor
    *
    * PARAMETERS:  Info                - Parse Op and resource template offset
    *
    * RETURN:      Completed resource node
    *
    * DESCRIPTION: Construct a short "FixedDMA" descriptor
    *
    ******************************************************************************/
   
   ASL_RESOURCE_NODE *
   RsDoFixedDmaDescriptor (
       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_DMA));
   
       Descriptor = Rnode->Buffer;
       Descriptor->FixedDma.DescriptorType =
           ACPI_RESOURCE_NAME_FIXED_DMA | ASL_RDESC_FIXED_DMA_SIZE;
   
       /* Process all child initialization nodes */
   
       for (i = 0; InitializerOp; i++)
       {
           switch (i)
           {
           case 0: /* DMA Request Lines [WORD] (_DMA) */
   
               Descriptor->FixedDma.RequestLines = (UINT16) InitializerOp->Asl.Value.Integer;
               RsCreateWordField (InitializerOp, ACPI_RESTAG_DMA,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (FixedDma.RequestLines));
               break;
   
           case 1: /* DMA Channel [WORD] (_TYP) */
   
               Descriptor->FixedDma.Channels = (UINT16) InitializerOp->Asl.Value.Integer;
               RsCreateWordField (InitializerOp, ACPI_RESTAG_DMATYPE,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (FixedDma.Channels));
               break;
   
           case 2: /* Transfer Width [BYTE] (_SIZ) */
   
               Descriptor->FixedDma.Width = (UINT8) InitializerOp->Asl.Value.Integer;
               RsCreateByteField (InitializerOp, ACPI_RESTAG_XFERTYPE,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (FixedDma.Width));
               break;
   
           case 3: /* Descriptor Name (optional) */
   
               UtAttachNamepathToOwner (Info->DescriptorTypeOp, InitializerOp);
               break;
   
           default:    /* Ignore any extra nodes */
   
               break;
           }
   
           InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
       }
   
       return (Rnode);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsDoFixedIoDescriptor
    *
    * PARAMETERS:  Info                - Parse Op and resource template offset
    *
    * RETURN:      Completed resource node
    *
    * DESCRIPTION: Construct a short "FixedIO" descriptor
    *
    ******************************************************************************/
   
   ASL_RESOURCE_NODE *
   RsDoFixedIoDescriptor (
       ASL_RESOURCE_INFO       *Info)
   {
       AML_RESOURCE            *Descriptor;
       ACPI_PARSE_OBJECT       *InitializerOp;
       ACPI_PARSE_OBJECT       *AddressOp = NULL;
       ASL_RESOURCE_NODE       *Rnode;
       UINT32                  CurrentByteOffset;
       UINT32                  i;
   
   
       InitializerOp = Info->DescriptorTypeOp->Asl.Child;
       CurrentByteOffset = Info->CurrentByteOffset;
       Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_FIXED_IO));
   
       Descriptor = Rnode->Buffer;
       Descriptor->Io.DescriptorType =
           ACPI_RESOURCE_NAME_FIXED_IO | ASL_RDESC_FIXED_IO_SIZE;
   
       /* Process all child initialization nodes */
   
       for (i = 0; InitializerOp; i++)
       {
           switch (i)
           {
           case 0: /* Base Address */
   
               Descriptor->FixedIo.Address =
                   (UINT16) InitializerOp->Asl.Value.Integer;
               RsCreateWordField (InitializerOp, ACPI_RESTAG_BASEADDRESS,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (FixedIo.Address));
               AddressOp = InitializerOp;
               break;
   
           case 1: /* Length */
   
               Descriptor->FixedIo.AddressLength =
                   (UINT8) InitializerOp->Asl.Value.Integer;
               RsCreateByteField (InitializerOp, ACPI_RESTAG_LENGTH,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (FixedIo.AddressLength));
               break;
   
           case 2: /* Name */
   
               UtAttachNamepathToOwner (Info->DescriptorTypeOp, InitializerOp);
               break;
   
           default:
   
               AslError (ASL_ERROR, ASL_MSG_RESOURCE_LIST, InitializerOp, NULL);
               break;
           }
   
           InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
       }
   
       /* Error checks */
   
       if (Descriptor->FixedIo.Address > 0x03FF)
       {
           AslError (ASL_WARNING, ASL_MSG_ISA_ADDRESS, AddressOp, NULL);
       }
   
       return (Rnode);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsDoIoDescriptor
    *
    * PARAMETERS:  Info                - Parse Op and resource template offset
    *
    * RETURN:      Completed resource node
    *
    * DESCRIPTION: Construct a short "IO" descriptor
    *
    ******************************************************************************/
   
   ASL_RESOURCE_NODE *
   RsDoIoDescriptor (
       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_IO));
   
       Descriptor = Rnode->Buffer;
       Descriptor->Io.DescriptorType =
           ACPI_RESOURCE_NAME_IO | ASL_RDESC_IO_SIZE;
   
       /* Process all child initialization nodes */
   
       for (i = 0; InitializerOp; i++)
       {
           switch (i)
           {
           case 0: /* Decode size */
   
               RsSetFlagBits (&Descriptor->Io.Flags, InitializerOp, 0, 1);
               RsCreateBitField (InitializerOp, ACPI_RESTAG_DECODE,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Io.Flags), 0);
               break;
   
           case 1:  /* Min Address */
   
               Descriptor->Io.Minimum =
                   (UINT16) InitializerOp->Asl.Value.Integer;
               RsCreateWordField (InitializerOp, ACPI_RESTAG_MINADDR,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Io.Minimum));
               MinOp = InitializerOp;
               break;
   
           case 2: /* Max Address */
   
               Descriptor->Io.Maximum =
                   (UINT16) InitializerOp->Asl.Value.Integer;
               RsCreateWordField (InitializerOp, ACPI_RESTAG_MAXADDR,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Io.Maximum));
               MaxOp = InitializerOp;
               break;
   
           case 3: /* Alignment */
   
               Descriptor->Io.Alignment =
                   (UINT8) InitializerOp->Asl.Value.Integer;
               RsCreateByteField (InitializerOp, ACPI_RESTAG_ALIGNMENT,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Io.Alignment));
               AlignOp = InitializerOp;
               break;
   
           case 4: /* Length */
   
               Descriptor->Io.AddressLength =
                   (UINT8) InitializerOp->Asl.Value.Integer;
               RsCreateByteField (InitializerOp, ACPI_RESTAG_LENGTH,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Io.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_IO,
           Descriptor->Io.Minimum,
           Descriptor->Io.Maximum,
           Descriptor->Io.AddressLength,
           Descriptor->Io.Alignment,
           MinOp, MaxOp, LengthOp, AlignOp, Info->DescriptorTypeOp);
   
       return (Rnode);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsDoIrqDescriptor
    *
    * PARAMETERS:  Info                - Parse Op and resource template offset
    *
    * RETURN:      Completed resource node
    *
    * DESCRIPTION: Construct a short "IRQ" descriptor
    *
    ******************************************************************************/
   
   ASL_RESOURCE_NODE *
   RsDoIrqDescriptor (
       ASL_RESOURCE_INFO       *Info)
   {
       AML_RESOURCE            *Descriptor;
       ACPI_PARSE_OBJECT       *InitializerOp;
       ASL_RESOURCE_NODE       *Rnode;
       UINT32                  Interrupts = 0;
       UINT16                  IrqMask = 0;
       UINT32                  CurrentByteOffset;
       UINT32                  i;
   
   
       InitializerOp = Info->DescriptorTypeOp->Asl.Child;
       CurrentByteOffset = Info->CurrentByteOffset;
       Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_IRQ));
   
       /* Length = 3 (with flag byte) */
   
       Descriptor = Rnode->Buffer;
       Descriptor->Irq.DescriptorType =
           ACPI_RESOURCE_NAME_IRQ | (ASL_RDESC_IRQ_SIZE + 0x01);
   
       /* Process all child initialization nodes */
   
       for (i = 0; InitializerOp; i++)
       {
           switch (i)
           {
           case 0: /* Interrupt Type (or Mode - edge/level) */
   
               RsSetFlagBits (&Descriptor->Irq.Flags, InitializerOp, 0, 1);
               RsCreateBitField (InitializerOp, ACPI_RESTAG_INTERRUPTTYPE,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Irq.Flags), 0);
               break;
   
           case 1: /* Interrupt Level (or Polarity - Active high/low) */
   
               RsSetFlagBits (&Descriptor->Irq.Flags, InitializerOp, 3, 0);
               RsCreateBitField (InitializerOp, ACPI_RESTAG_INTERRUPTLEVEL,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Irq.Flags), 3);
               break;
   
           case 2: /* Share Type - Default: exclusive (0) */
   
               RsSetFlagBits (&Descriptor->Irq.Flags, InitializerOp, 4, 0);
               RsCreateBitField (InitializerOp, ACPI_RESTAG_INTERRUPTSHARE,
                   CurrentByteOffset + ASL_RESDESC_OFFSET (Irq.Flags), 4);
               break;
   
           case 3: /* Name */
   
               UtAttachNamepathToOwner (Info->DescriptorTypeOp, InitializerOp);
               break;
   
           default:
   
               /* All IRQ bytes are handled here, after the flags and name */
   
               if (InitializerOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
               {
                   /* Up to 16 interrupts can be specified in the list */
   
                   Interrupts++;
                   if (Interrupts > 16)
                   {
                       AslError (ASL_ERROR, ASL_MSG_INTERRUPT_LIST,
                           InitializerOp, NULL);
                       return (Rnode);
                   }
   
                   /* Only interrupts 0-15 are allowed (mask is 16 bits) */
   
                   if (InitializerOp->Asl.Value.Integer > 15)
                   {
                       AslError (ASL_ERROR, ASL_MSG_INTERRUPT_NUMBER,
                           InitializerOp, NULL);
                   }
                   else
                   {
                       IrqMask |= (1 << (UINT8) InitializerOp->Asl.Value.Integer);
                   }
               }
   
               /* Case 4: First IRQ value in list */
   
               if (i == 4)
               {
                   /* Check now for duplicates in list */
   
                   RsCheckListForDuplicates (InitializerOp);
   
                   /* Create a named field at the start of the list */
   
                   RsCreateWordField (InitializerOp, ACPI_RESTAG_INTERRUPT,
                       CurrentByteOffset + ASL_RESDESC_OFFSET (Irq.IrqMask));
               }
               break;
           }
   
           InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
       }
   
       /* Now we can set the channel mask */
   
       Descriptor->Irq.IrqMask = IrqMask;
       return (Rnode);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    RsDoIrqNoFlagsDescriptor
    *
    * PARAMETERS:  Info                - Parse Op and resource template offset
    *
    * RETURN:      Completed resource node
    *
    * DESCRIPTION: Construct a short "IRQNoFlags" descriptor
    *
    ******************************************************************************/
   
   ASL_RESOURCE_NODE *
   RsDoIrqNoFlagsDescriptor (
       ASL_RESOURCE_INFO       *Info)
   {
       AML_RESOURCE            *Descriptor;
       ACPI_PARSE_OBJECT       *InitializerOp;
       ASL_RESOURCE_NODE       *Rnode;
       UINT16                  IrqMask = 0;
       UINT32                  Interrupts = 0;
       UINT32                  CurrentByteOffset;
       UINT32                  i;
   
   
       InitializerOp = Info->DescriptorTypeOp->Asl.Child;
       CurrentByteOffset = Info->CurrentByteOffset;
       Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_IRQ_NOFLAGS));
   
       Descriptor = Rnode->Buffer;
       Descriptor->Irq.DescriptorType =
           ACPI_RESOURCE_NAME_IRQ | ASL_RDESC_IRQ_SIZE;
   
       /* Process all child initialization nodes */
   
       for (i = 0; InitializerOp; i++)
       {
           switch (i)
           {
           case 0: /* Name */
   
               UtAttachNamepathToOwner (Info->DescriptorTypeOp, InitializerOp);
               break;
   
           default:
   
               /* IRQ bytes are handled here, after the flags and name */
   
               if (InitializerOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
               {
                   /* Up to 16 interrupts can be specified in the list */
   
                   Interrupts++;
                   if (Interrupts > 16)
                   {
                       AslError (ASL_ERROR, ASL_MSG_INTERRUPT_LIST,
                           InitializerOp, NULL);
                       return (Rnode);
                   }
   
                   /* Only interrupts 0-15 are allowed (mask is 16 bits) */
   
                   if (InitializerOp->Asl.Value.Integer > 15)
                   {
                       AslError (ASL_ERROR, ASL_MSG_INTERRUPT_NUMBER,
                           InitializerOp, NULL);
                   }
                   else
                   {
                       IrqMask |= (1 << ((UINT8) InitializerOp->Asl.Value.Integer));
                   }
               }
   
               /* Case 1: First IRQ value in list */
   
               if (i == 1)
               {
                   /* Check now for duplicates in list */
   
                   RsCheckListForDuplicates (InitializerOp);
   
                   /* Create a named field at the start of the list */
   
                   RsCreateWordField (InitializerOp, ACPI_RESTAG_INTERRUPT,
                       CurrentByteOffset + ASL_RESDESC_OFFSET (Irq.IrqMask));
               }
               break;
           }
   
           InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
       }
   
       /* Now we can set the interrupt mask */
   
       Descriptor->Irq.IrqMask = IrqMask;
       return (Rnode);
   }

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