vendor/acpica/20001201

1 files changed, 0 insertions, 842 deletions

diff --git a/sys/contrib/dev/acpica/exfldio.c b/sys/contrib/dev/acpica/exfldio.c
deleted file mode 100644
index 766d55cdebe83..0000000000000
--- a/sys/contrib/dev/acpica/exfldio.c
+++ /dev/null
@@ -1,842 +0,0 @@
-/******************************************************************************
- *
- * Module Name: amfldio - Aml Field I/O
- *              $Revision: 32 $
- *
- *****************************************************************************/
-
-/******************************************************************************
- *
- * 1. Copyright Notice
- *
- * Some or all of this work - Copyright (c) 1999, Intel Corp.  All rights
- * reserved.
- *
- * 2. License
- *
- * 2.1. This is your license from Intel Corp. under its intellectual property
- * rights.  You may have additional license terms from the party that provided
- * you this software, covering your right to use that party's intellectual
- * property rights.
- *
- * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
- * copy of the source code appearing in this file ("Covered Code") an
- * irrevocable, perpetual, worldwide license under Intel's copyrights in the
- * base code distributed originally by Intel ("Original Intel Code") to copy,
- * make derivatives, distribute, use and display any portion of the Covered
- * Code in any form, with the right to sublicense such rights; and
- *
- * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
- * license (with the right to sublicense), under only those claims of Intel
- * patents that are infringed by the Original Intel Code, to make, use, sell,
- * offer to sell, and import the Covered Code and derivative works thereof
- * solely to the minimum extent necessary to exercise the above copyright
- * license, and in no event shall the patent license extend to any additions
- * to or modifications of the Original Intel Code.  No other license or right
- * is granted directly or by implication, estoppel or otherwise;
- *
- * The above copyright and patent license is granted only if the following
- * conditions are met:
- *
- * 3. Conditions
- *
- * 3.1. Redistribution of Source with Rights to Further Distribute Source.
- * Redistribution of source code of any substantial portion of the Covered
- * Code or modification with rights to further distribute source must include
- * the above Copyright Notice, the above License, this list of Conditions,
- * and the following Disclaimer and Export Compliance provision.  In addition,
- * Licensee must cause all Covered Code to which Licensee contributes to
- * contain a file documenting the changes Licensee made to create that Covered
- * Code and the date of any change.  Licensee must include in that file the
- * documentation of any changes made by any predecessor Licensee.  Licensee
- * must include a prominent statement that the modification is derived,
- * directly or indirectly, from Original Intel Code.
- *
- * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
- * Redistribution of source code of any substantial portion of the Covered
- * Code or modification without rights to further distribute source must
- * include the following Disclaimer and Export Compliance provision in the
- * documentation and/or other materials provided with distribution.  In
- * addition, Licensee may not authorize further sublicense of source of any
- * portion of the Covered Code, and must include terms to the effect that the
- * license from Licensee to its licensee is limited to the intellectual
- * property embodied in the software Licensee provides to its licensee, and
- * not to intellectual property embodied in modifications its licensee may
- * make.
- *
- * 3.3. Redistribution of Executable. Redistribution in executable form of any
- * substantial portion of the Covered Code or modification must reproduce the
- * above Copyright Notice, and the following Disclaimer and Export Compliance
- * provision in the documentation and/or other materials provided with the
- * distribution.
- *
- * 3.4. Intel retains all right, title, and interest in and to the Original
- * Intel Code.
- *
- * 3.5. Neither the name Intel nor any other trademark owned or controlled by
- * Intel shall be used in advertising or otherwise to promote the sale, use or
- * other dealings in products derived from or relating to the Covered Code
- * without prior written authorization from Intel.
- *
- * 4. Disclaimer and Export Compliance
- *
- * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
- * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
- * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
- * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
- * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
- * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
- * PARTICULAR PURPOSE.
- *
- * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
- * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
- * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
- * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
- * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
- * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
- * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
- * LIMITED REMEDY.
- *
- * 4.3. Licensee shall not export, either directly or indirectly, any of this
- * software or system incorporating such software without first obtaining any
- * required license or other approval from the U. S. Department of Commerce or
- * any other agency or department of the United States Government.  In the
- * event Licensee exports any such software from the United States or
- * re-exports any such software from a foreign destination, Licensee shall
- * ensure that the distribution and export/re-export of the software is in
- * compliance with all laws, regulations, orders, or other restrictions of the
- * U.S. Export Administration Regulations. Licensee agrees that neither it nor
- * any of its subsidiaries will export/re-export any technical data, process,
- * software, or service, directly or indirectly, to any country for which the
- * United States government or any agency thereof requires an export license,
- * other governmental approval, or letter of assurance, without first obtaining
- * such license, approval or letter.
- *
- *****************************************************************************/
-
-
-#define __AMFLDIO_C__
-
-#include "acpi.h"
-#include "acinterp.h"
-#include "amlcode.h"
-#include "acnamesp.h"
-#include "achware.h"
-#include "acevents.h"
-
-
-#define _COMPONENT          INTERPRETER
-        MODULE_NAME         ("amfldio")
-
-
-/*******************************************************************************
- *
- * FUNCTION:    AcpiAmlReadFieldData
- *
- * PARAMETERS:  *ObjDesc            - Field to be read
- *              *Value              - Where to store value
- *              FieldBitWidth       - Field Width in bits (8, 16, or 32)
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Retrieve the value of the given field
- *
- ******************************************************************************/
-
-ACPI_STATUS
-AcpiAmlReadFieldData (
-    ACPI_OPERAND_OBJECT     *ObjDesc,
-    UINT32                  FieldByteOffset,
-    UINT32                  FieldBitWidth,
-    UINT32                  *Value)
-{
-    ACPI_STATUS             Status;
-    ACPI_OPERAND_OBJECT     *RgnDesc = NULL;
-    ACPI_PHYSICAL_ADDRESS   Address;
-    UINT32                  LocalValue = 0;
-    UINT32                  FieldByteWidth;
-
-
-    FUNCTION_TRACE ("AmlReadFieldData");
-
-
-    /* ObjDesc is validated by callers */
-
-    if (ObjDesc)
-    {
-        RgnDesc = ObjDesc->Field.Container;
-    }
-
-
-    FieldByteWidth = DIV_8 (FieldBitWidth);
-    Status = AcpiAmlSetupField (ObjDesc, RgnDesc, FieldBitWidth);
-    if (ACPI_FAILURE (Status))
-    {
-        return_ACPI_STATUS (Status);
-    }
-
-    /* SetupField validated RgnDesc and FieldBitWidth  */
-
-    if (!Value)
-    {
-        Value = &LocalValue;    /*  support reads without saving value  */
-    }
-
-
-    /*
-     * Set offset to next multiple of field width,
-     *  add region base address and offset within the field
-     */
-    Address = RgnDesc->Region.Address +
-              (ObjDesc->Field.Offset * FieldByteWidth) +
-              FieldByteOffset;
-
-    DEBUG_PRINT (TRACE_OPREGION,
-        ("AmlReadFieldData: Region %s(%X) at %08lx width %X\n",
-        AcpiCmGetRegionName (RgnDesc->Region.SpaceId), 
-        RgnDesc->Region.SpaceId, Address,
-        FieldBitWidth));
-
-
-    /* Invoke the appropriate AddressSpace/OpRegion handler */
-
-    Status = AcpiEvAddressSpaceDispatch (RgnDesc, ADDRESS_SPACE_READ,
-                                        Address, FieldBitWidth, Value);
-
-    if (Status == AE_NOT_IMPLEMENTED)
-    {
-        DEBUG_PRINT (ACPI_ERROR,
-            ("AmlReadFieldData: **** Region %s(%X) not implemented\n",
-            AcpiCmGetRegionName (RgnDesc->Region.SpaceId), 
-            RgnDesc->Region.SpaceId));
-    }
-
-    else if (Status == AE_NOT_EXIST)
-    {
-        DEBUG_PRINT (ACPI_ERROR,
-            ("AmlReadFieldData: **** Region %s(%X) has no handler\n",
-            AcpiCmGetRegionName (RgnDesc->Region.SpaceId), 
-            RgnDesc->Region.SpaceId));
-    }
-
-    DEBUG_PRINT (TRACE_OPREGION,
-        ("AmlReadField: Returned value=%08lx \n", *Value));
-
-    return_ACPI_STATUS (Status);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION:    AcpiAmlReadField
- *
- * PARAMETERS:  *ObjDesc            - Field to be read
- *              *Value              - Where to store value
- *              FieldBitWidth       - Field Width in bits (8, 16, or 32)
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Retrieve the value of the given field
- *
- ******************************************************************************/
-
-ACPI_STATUS
-AcpiAmlReadField (
-    ACPI_OPERAND_OBJECT     *ObjDesc,
-    void                    *Buffer,
-    UINT32                  BufferLength,
-    UINT32                  ByteLength,
-    UINT32                  DatumLength,
-    UINT32                  BitGranularity,
-    UINT32                  ByteGranularity)
-{
-    ACPI_STATUS             Status;
-    UINT32                  ThisFieldByteOffset;
-    UINT32                  ThisFieldDatumOffset;
-    UINT32                  PreviousRawDatum;
-    UINT32                  ThisRawDatum;
-    UINT32                  ValidFieldBits;
-    UINT32                  Mask;
-    UINT32                  MergedDatum = 0;
-
-
-    FUNCTION_TRACE ("AmlReadField");
-
-    /*
-     * Clear the caller's buffer (the whole buffer length as given)
-     * This is very important, especially in the cases where a byte is read,
-     * but the buffer is really a UINT32 (4 bytes).
-     */
-
-    MEMSET (Buffer, 0, BufferLength);
-
-    /* Read the first raw datum to prime the loop */
-
-    ThisFieldByteOffset = 0;
-    ThisFieldDatumOffset= 0;
-
-    Status = AcpiAmlReadFieldData (ObjDesc, ThisFieldByteOffset, BitGranularity,
-                                    &PreviousRawDatum);
-    if (ACPI_FAILURE (Status))
-    {
-        goto Cleanup;
-    }
-
-    /* We might actually be done if the request fits in one datum */
-
-    if ((DatumLength == 1) &&
-        ((ObjDesc->Field.BitOffset + ObjDesc->FieldUnit.Length) <=
-            (UINT16) BitGranularity))
-    {
-        MergedDatum = PreviousRawDatum;
-
-        MergedDatum = (MergedDatum >> ObjDesc->Field.BitOffset);
-
-        ValidFieldBits = ObjDesc->FieldUnit.Length % BitGranularity;
-        if (ValidFieldBits)
-        {
-            Mask = (((UINT32) 1 << ValidFieldBits) - (UINT32) 1);
-            MergedDatum &= Mask;
-        }
-
-
-        /*
-         * Place the MergedDatum into the proper format and return buffer
-         * field
-         */
-
-        switch (ByteGranularity)
-        {
-        case 1:
-            ((UINT8 *) Buffer) [ThisFieldDatumOffset] = (UINT8) MergedDatum;
-            break;
-
-        case 2:
-            MOVE_UNALIGNED16_TO_16 (&(((UINT16 *) Buffer)[ThisFieldDatumOffset]), &MergedDatum);
-            break;
-
-        case 4:
-            MOVE_UNALIGNED32_TO_32 (&(((UINT32 *) Buffer)[ThisFieldDatumOffset]), &MergedDatum);
-            break;
-        }
-
-        ThisFieldByteOffset = 1;
-        ThisFieldDatumOffset = 1;
-    }
-
-    else
-    {
-        /* We need to get more raw data to complete one or more field data */
-
-        while (ThisFieldDatumOffset < DatumLength)
-        {
-            /*
-             * Get the next raw datum, it contains bits of the current
-             * field datum
-             */
-
-            Status = AcpiAmlReadFieldData (ObjDesc,
-                            ThisFieldByteOffset + ByteGranularity,
-                            BitGranularity, &ThisRawDatum);
-            if (ACPI_FAILURE (Status))
-            {
-                goto Cleanup;
-            }
-
-            /* Before merging the data, make sure the unused bits are clear */
-
-            switch (ByteGranularity)
-            {
-            case 1:
-                ThisRawDatum &= 0x000000FF;
-                PreviousRawDatum &= 0x000000FF;
-                break;
-
-            case 2:
-                ThisRawDatum &= 0x0000FFFF;
-                PreviousRawDatum &= 0x0000FFFF;
-                break;
-            }
-
-            /*
-             * Put together bits of the two raw data to make a complete
-             * field datum
-             */
-
-
-            if (ObjDesc->Field.BitOffset != 0)
-            {
-                MergedDatum =
-                    (PreviousRawDatum >> ObjDesc->Field.BitOffset) |
-                    (ThisRawDatum << (BitGranularity - ObjDesc->Field.BitOffset));
-            }
-
-            else
-            {
-                MergedDatum = PreviousRawDatum;
-            }
-
-            /*
-             * Prepare the merged datum for storing into the caller's
-             *  buffer.  It is possible to have a 32-bit buffer
-             *  (ByteGranularity == 4), but a ObjDesc->Field.Length
-             *  of 8 or 16, meaning that the upper bytes of merged data
-             *  are undesired.  This section fixes that.
-             */
-            switch (ObjDesc->Field.Length)
-            {
-            case 8:
-                MergedDatum &= 0x000000FF;
-                break;
-
-            case 16:
-                MergedDatum &= 0x0000FFFF;
-                break;
-            }
-
-            /*
-             * Now store the datum in the caller's buffer, according to
-             * the data type
-             */
-            switch (ByteGranularity)
-            {
-            case 1:
-                ((UINT8 *) Buffer) [ThisFieldDatumOffset] = (UINT8) MergedDatum;
-                break;
-
-            case 2:
-                MOVE_UNALIGNED16_TO_16 (&(((UINT16 *) Buffer) [ThisFieldDatumOffset]), &MergedDatum);
-                break;
-
-            case 4:
-                MOVE_UNALIGNED32_TO_32 (&(((UINT32 *) Buffer) [ThisFieldDatumOffset]), &MergedDatum);
-                break;
-            }
-
-            /*
-             * Save the most recent datum since it contains bits of
-             * the *next* field datum
-             */
-
-            PreviousRawDatum = ThisRawDatum;
-
-            ThisFieldByteOffset += ByteGranularity;
-            ThisFieldDatumOffset++;
-
-        }  /* while */
-    }
-
-Cleanup:
-
-    return_ACPI_STATUS (Status);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION:    AcpiAmlWriteFieldData
- *
- * PARAMETERS:  *ObjDesc            - Field to be set
- *              Value               - Value to store
- *              FieldBitWidth       - Field Width in bits (8, 16, or 32)
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Store the value into the given field
- *
- ******************************************************************************/
-
-static ACPI_STATUS
-AcpiAmlWriteFieldData (
-    ACPI_OPERAND_OBJECT     *ObjDesc,
-    UINT32                  FieldByteOffset,
-    UINT32                  FieldBitWidth,
-    UINT32                  Value)
-{
-    ACPI_STATUS             Status = AE_OK;
-    ACPI_OPERAND_OBJECT     *RgnDesc = NULL;
-    ACPI_PHYSICAL_ADDRESS   Address;
-    UINT32                  FieldByteWidth;
-
-
-    FUNCTION_TRACE ("AmlWriteFieldData");
-
-
-    /* ObjDesc is validated by callers */
-
-    if (ObjDesc)
-    {
-        RgnDesc = ObjDesc->Field.Container;
-    }
-
-    FieldByteWidth = DIV_8 (FieldBitWidth);
-    Status = AcpiAmlSetupField (ObjDesc, RgnDesc, FieldBitWidth);
-    if (ACPI_FAILURE (Status))
-    {
-        return_ACPI_STATUS (Status);
-    }
-
-
-    /*
-     * Set offset to next multiple of field width,
-     *  add region base address and offset within the field
-     */
-    Address = RgnDesc->Region.Address +
-              (ObjDesc->Field.Offset * FieldByteWidth) +
-              FieldByteOffset;
-
-    DEBUG_PRINT (TRACE_OPREGION,
-        ("AmlWriteField: Store %lx in Region %s(%X) at %p width %X\n",
-        Value, AcpiCmGetRegionName (RgnDesc->Region.SpaceId), 
-        RgnDesc->Region.SpaceId, Address,
-        FieldBitWidth));
-
-    /* Invoke the appropriate AddressSpace/OpRegion handler */
-
-    Status = AcpiEvAddressSpaceDispatch (RgnDesc, ADDRESS_SPACE_WRITE,
-                                        Address, FieldBitWidth, &Value);
-
-    if (Status == AE_NOT_IMPLEMENTED)
-    {
-        DEBUG_PRINT (ACPI_ERROR,
-            ("AmlWriteField: **** Region type %s(%X) not implemented\n",
-            AcpiCmGetRegionName (RgnDesc->Region.SpaceId),
-            RgnDesc->Region.SpaceId));
-    }
-
-    else if (Status == AE_NOT_EXIST)
-    {
-        DEBUG_PRINT (ACPI_ERROR,
-            ("AmlWriteField: **** Region type %s(%X) does not have a handler\n",
-            AcpiCmGetRegionName (RgnDesc->Region.SpaceId),
-            RgnDesc->Region.SpaceId));
-    }
-
-    return_ACPI_STATUS (Status);
-}
-
-
-/*****************************************************************************
- *
- * FUNCTION:    AcpiAmlWriteFieldDataWithUpdateRule
- *
- * PARAMETERS:  *ObjDesc            - Field to be set
- *              Value               - Value to store
- *              FieldBitWidth       - Field Width in bits (8, 16, or 32)
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Apply the field update rule to a field write
- *
- ****************************************************************************/
-
-static ACPI_STATUS
-AcpiAmlWriteFieldDataWithUpdateRule (
-    ACPI_OPERAND_OBJECT     *ObjDesc,
-    UINT32                  Mask,
-    UINT32                  FieldValue,
-    UINT32                  ThisFieldByteOffset,
-    UINT32                  BitGranularity)
-{
-    ACPI_STATUS             Status = AE_OK;
-    UINT32                  MergedValue;
-    UINT32                  CurrentValue;
-
-
-    /* Start with the new bits  */
-
-    MergedValue = FieldValue;
-
-    /* Check if update rule needs to be applied (not if mask is all ones) */
-
-
-    /* Decode the update rule */
-
-    switch (ObjDesc->Field.UpdateRule)
-    {
-
-    case UPDATE_PRESERVE:
-
-        /*
-         * Read the current contents of the byte/word/dword containing
-         * the field, and merge with the new field value.
-         */
-        Status = AcpiAmlReadFieldData (ObjDesc, ThisFieldByteOffset,
-                                        BitGranularity, &CurrentValue);
-        MergedValue |= (CurrentValue & ~Mask);
-        break;
-
-
-    case UPDATE_WRITE_AS_ONES:
-
-        /* Set positions outside the field to all ones */
-
-        MergedValue |= ~Mask;
-        break;
-
-
-    case UPDATE_WRITE_AS_ZEROS:
-
-        /* Set positions outside the field to all zeros */
-
-        MergedValue &= Mask;
-        break;
-
-
-    default:
-        DEBUG_PRINT (ACPI_ERROR,
-            ("WriteFieldDataWithUpdateRule: Unknown UpdateRule setting: %x\n",
-            ObjDesc->Field.UpdateRule));
-        Status = AE_AML_OPERAND_VALUE;
-    }
-
-
-    /* Write the merged value */
-
-    if (ACPI_SUCCESS (Status))
-    {
-        Status = AcpiAmlWriteFieldData (ObjDesc, ThisFieldByteOffset,
-                                        BitGranularity, MergedValue);
-    }
-
-    return (Status);
-}
-
-
-/*****************************************************************************
- *
- * FUNCTION:    AcpiAmlWriteField
- *
- * PARAMETERS:  *ObjDesc            - Field to be set
- *              Value               - Value to store
- *              FieldBitWidth       - Field Width in bits (8, 16, or 32)
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Store the value into the given field
- *
- ****************************************************************************/
-
-ACPI_STATUS
-AcpiAmlWriteField (
-    ACPI_OPERAND_OBJECT     *ObjDesc,
-    void                    *Buffer,
-    UINT32                  BufferLength,
-    UINT32                  ByteLength,
-    UINT32                  DatumLength,
-    UINT32                  BitGranularity,
-    UINT32                  ByteGranularity)
-{
-    ACPI_STATUS             Status;
-    UINT32                  ThisFieldByteOffset;
-    UINT32                  ThisFieldDatumOffset;
-    UINT32                  Mask;
-    UINT32                  MergedDatum;
-    UINT32                  PreviousRawDatum;
-    UINT32                  ThisRawDatum;
-    UINT32                  FieldValue;
-    UINT32                  ValidFieldBits;
-
-
-    FUNCTION_TRACE ("AmlWriteField");
-
-
-    /*
-     * Break the request into up to three parts:
-     * non-aligned part at start, aligned part in middle, non-aligned part
-     * at end --- Just like an I/O request ---
-     */
-
-    ThisFieldByteOffset = 0;
-    ThisFieldDatumOffset= 0;
-
-    /* Get a datum */
-
-    switch (ByteGranularity)
-    {
-    case 1:
-        PreviousRawDatum = ((UINT8 *) Buffer) [ThisFieldDatumOffset];
-        break;
-
-    case 2:
-        MOVE_UNALIGNED16_TO_32 (&PreviousRawDatum, &(((UINT16 *) Buffer) [ThisFieldDatumOffset]));
-        break;
-
-    case 4:
-        MOVE_UNALIGNED32_TO_32 (&PreviousRawDatum, &(((UINT32 *) Buffer) [ThisFieldDatumOffset]));
-        break;
-
-    default:
-        DEBUG_PRINT (ACPI_ERROR, ("AmlWriteField: Invalid granularity: %x\n",
-                        ByteGranularity));
-        Status = AE_AML_OPERAND_VALUE;
-        goto Cleanup;
-    }
-
-
-    /*
-     * Write a partial field datum if field does not begin on a datum boundary
-     *
-     * Construct Mask with 1 bits where the field is, 0 bits elsewhere
-     *
-     * 1) Bits above the field
-     */
-
-    Mask = (((UINT32)(-1)) << (UINT32)ObjDesc->Field.BitOffset);
-
-    /* 2) Only the bottom 5 bits are valid for a shift operation. */
-
-    if ((ObjDesc->Field.BitOffset + ObjDesc->FieldUnit.Length) < 32)
-    {
-        /* Bits above the field */
-
-        Mask &= (~(((UINT32)(-1)) << ((UINT32)ObjDesc->Field.BitOffset +
-                                        (UINT32)ObjDesc->FieldUnit.Length)));
-    }
-
-    /* 3) Shift and mask the value into the field position */
-
-    FieldValue = (PreviousRawDatum << ObjDesc->Field.BitOffset) & Mask;
-
-    Status = AcpiAmlWriteFieldDataWithUpdateRule (ObjDesc, Mask, FieldValue,
-                                                    ThisFieldByteOffset,
-                                                    BitGranularity);
-    if (ACPI_FAILURE (Status))
-    {
-        goto Cleanup;
-    }
-
-
-    /* If the field fits within one datum, we are done. */
-
-    if ((DatumLength == 1) &&
-       ((ObjDesc->Field.BitOffset + ObjDesc->FieldUnit.Length) <=
-            (UINT16) BitGranularity))
-    {
-        goto Cleanup;
-    }
-
-    /*
-     * We don't need to worry about the update rule for these data, because
-     * all of the bits are part of the field.
-     *
-     * Can't write the last datum, however, because it might contain bits that
-     * are not part of the field -- the update rule must be applied.
-     */
-
-    while (ThisFieldDatumOffset < (DatumLength - 1))
-    {
-        ThisFieldDatumOffset++;
-
-        /* Get the next raw datum, it contains bits of the current field datum... */
-
-        switch (ByteGranularity)
-        {
-        case 1:
-            ThisRawDatum = ((UINT8 *) Buffer) [ThisFieldDatumOffset];
-            break;
-
-        case 2:
-            MOVE_UNALIGNED16_TO_32 (&ThisRawDatum, &(((UINT16 *) Buffer) [ThisFieldDatumOffset]));
-            break;
-
-        case 4:
-            MOVE_UNALIGNED32_TO_32 (&ThisRawDatum, &(((UINT32 *) Buffer) [ThisFieldDatumOffset]));
-            break;
-
-        default:
-            DEBUG_PRINT (ACPI_ERROR, ("AmlWriteField: Invalid Byte Granularity: %x\n",
-                            ByteGranularity));
-            Status = AE_AML_OPERAND_VALUE;
-            goto Cleanup;
-        }
-
-        /*
-         * Put together bits of the two raw data to make a complete field
-         * datum
-         */
-
-        if (ObjDesc->Field.BitOffset != 0)
-        {
-            MergedDatum =
-                (PreviousRawDatum >> (BitGranularity - ObjDesc->Field.BitOffset)) |
-                (ThisRawDatum << ObjDesc->Field.BitOffset);
-        }
-
-        else
-        {
-            MergedDatum = ThisRawDatum;
-        }
-
-        /* Now write the completed datum  */
-
-
-        Status = AcpiAmlWriteFieldData (ObjDesc,
-                                        ThisFieldByteOffset + ByteGranularity,
-                                        BitGranularity, MergedDatum);
-        if (ACPI_FAILURE (Status))
-        {
-            goto Cleanup;
-        }
-
-
-        /*
-         * Save the most recent datum since it contains bits of
-         * the *next* field datum
-         */
-
-        PreviousRawDatum = ThisRawDatum;
-
-        ThisFieldByteOffset += ByteGranularity;
-
-    }  /* while */
-
-
-    /* Write a partial field datum if field does not end on a datum boundary */
-
-    if ((ObjDesc->FieldUnit.Length + ObjDesc->FieldUnit.BitOffset) %
-        BitGranularity)
-    {
-        switch (ByteGranularity)
-        {
-        case 1:
-            ThisRawDatum = ((UINT8 *) Buffer) [ThisFieldDatumOffset];
-            break;
-
-        case 2:
-            MOVE_UNALIGNED16_TO_32 (&ThisRawDatum, &(((UINT16 *) Buffer) [ThisFieldDatumOffset]));
-            break;
-
-        case 4:
-            MOVE_UNALIGNED32_TO_32 (&ThisRawDatum, &(((UINT32 *) Buffer) [ThisFieldDatumOffset]));
-            break;
-        }
-
-        /* Construct Mask with 1 bits where the field is, 0 bits elsewhere */
-
-        ValidFieldBits = ((ObjDesc->FieldUnit.Length % BitGranularity) +
-                            ObjDesc->Field.BitOffset);
-
-        Mask = (((UINT32) 1 << ValidFieldBits) - (UINT32) 1);
-
-        /* Shift and mask the value into the field position */
-
-        FieldValue = (PreviousRawDatum >>
-                        (BitGranularity - ObjDesc->Field.BitOffset)) & Mask;
-
-        Status = AcpiAmlWriteFieldDataWithUpdateRule (ObjDesc, Mask, FieldValue,
-                                                        ThisFieldByteOffset + ByteGranularity,
-                                                        BitGranularity);
-        if (ACPI_FAILURE (Status))
-        {
-            goto Cleanup;
-        }
-    }
-
-
-Cleanup:
-
-    return_ACPI_STATUS (Status);
-}
-
-