17c478bd9Sstevel@tonic-gate /******************************************************************************
27c478bd9Sstevel@tonic-gate *
37c478bd9Sstevel@tonic-gate * Module Name: exfield - ACPI AML (p-code) execution - field manipulation
47c478bd9Sstevel@tonic-gate *
57c478bd9Sstevel@tonic-gate *****************************************************************************/
67c478bd9Sstevel@tonic-gate
7*35786f68SRobert Mustacchi /******************************************************************************
8*35786f68SRobert Mustacchi *
9*35786f68SRobert Mustacchi * 1. Copyright Notice
10*35786f68SRobert Mustacchi *
11*35786f68SRobert Mustacchi * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp.
127c478bd9Sstevel@tonic-gate * All rights reserved.
137c478bd9Sstevel@tonic-gate *
14*35786f68SRobert Mustacchi * 2. License
15*35786f68SRobert Mustacchi *
16*35786f68SRobert Mustacchi * 2.1. This is your license from Intel Corp. under its intellectual property
17*35786f68SRobert Mustacchi * rights. You may have additional license terms from the party that provided
18*35786f68SRobert Mustacchi * you this software, covering your right to use that party's intellectual
19*35786f68SRobert Mustacchi * property rights.
20*35786f68SRobert Mustacchi *
21*35786f68SRobert Mustacchi * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22*35786f68SRobert Mustacchi * copy of the source code appearing in this file ("Covered Code") an
23*35786f68SRobert Mustacchi * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24*35786f68SRobert Mustacchi * base code distributed originally by Intel ("Original Intel Code") to copy,
25*35786f68SRobert Mustacchi * make derivatives, distribute, use and display any portion of the Covered
26*35786f68SRobert Mustacchi * Code in any form, with the right to sublicense such rights; and
27*35786f68SRobert Mustacchi *
28*35786f68SRobert Mustacchi * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29*35786f68SRobert Mustacchi * license (with the right to sublicense), under only those claims of Intel
30*35786f68SRobert Mustacchi * patents that are infringed by the Original Intel Code, to make, use, sell,
31*35786f68SRobert Mustacchi * offer to sell, and import the Covered Code and derivative works thereof
32*35786f68SRobert Mustacchi * solely to the minimum extent necessary to exercise the above copyright
33*35786f68SRobert Mustacchi * license, and in no event shall the patent license extend to any additions
34*35786f68SRobert Mustacchi * to or modifications of the Original Intel Code. No other license or right
35*35786f68SRobert Mustacchi * is granted directly or by implication, estoppel or otherwise;
36*35786f68SRobert Mustacchi *
37*35786f68SRobert Mustacchi * The above copyright and patent license is granted only if the following
38*35786f68SRobert Mustacchi * conditions are met:
39*35786f68SRobert Mustacchi *
40*35786f68SRobert Mustacchi * 3. Conditions
41*35786f68SRobert Mustacchi *
42*35786f68SRobert Mustacchi * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43*35786f68SRobert Mustacchi * Redistribution of source code of any substantial portion of the Covered
44*35786f68SRobert Mustacchi * Code or modification with rights to further distribute source must include
45*35786f68SRobert Mustacchi * the above Copyright Notice, the above License, this list of Conditions,
46*35786f68SRobert Mustacchi * and the following Disclaimer and Export Compliance provision. In addition,
47*35786f68SRobert Mustacchi * Licensee must cause all Covered Code to which Licensee contributes to
48*35786f68SRobert Mustacchi * contain a file documenting the changes Licensee made to create that Covered
49*35786f68SRobert Mustacchi * Code and the date of any change. Licensee must include in that file the
50*35786f68SRobert Mustacchi * documentation of any changes made by any predecessor Licensee. Licensee
51*35786f68SRobert Mustacchi * must include a prominent statement that the modification is derived,
52*35786f68SRobert Mustacchi * directly or indirectly, from Original Intel Code.
53*35786f68SRobert Mustacchi *
54*35786f68SRobert Mustacchi * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55*35786f68SRobert Mustacchi * Redistribution of source code of any substantial portion of the Covered
56*35786f68SRobert Mustacchi * Code or modification without rights to further distribute source must
57*35786f68SRobert Mustacchi * include the following Disclaimer and Export Compliance provision in the
58*35786f68SRobert Mustacchi * documentation and/or other materials provided with distribution. In
59*35786f68SRobert Mustacchi * addition, Licensee may not authorize further sublicense of source of any
60*35786f68SRobert Mustacchi * portion of the Covered Code, and must include terms to the effect that the
61*35786f68SRobert Mustacchi * license from Licensee to its licensee is limited to the intellectual
62*35786f68SRobert Mustacchi * property embodied in the software Licensee provides to its licensee, and
63*35786f68SRobert Mustacchi * not to intellectual property embodied in modifications its licensee may
64*35786f68SRobert Mustacchi * make.
65*35786f68SRobert Mustacchi *
66*35786f68SRobert Mustacchi * 3.3. Redistribution of Executable. Redistribution in executable form of any
67*35786f68SRobert Mustacchi * substantial portion of the Covered Code or modification must reproduce the
68*35786f68SRobert Mustacchi * above Copyright Notice, and the following Disclaimer and Export Compliance
69*35786f68SRobert Mustacchi * provision in the documentation and/or other materials provided with the
70*35786f68SRobert Mustacchi * distribution.
71*35786f68SRobert Mustacchi *
72*35786f68SRobert Mustacchi * 3.4. Intel retains all right, title, and interest in and to the Original
73*35786f68SRobert Mustacchi * Intel Code.
74*35786f68SRobert Mustacchi *
75*35786f68SRobert Mustacchi * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76*35786f68SRobert Mustacchi * Intel shall be used in advertising or otherwise to promote the sale, use or
77*35786f68SRobert Mustacchi * other dealings in products derived from or relating to the Covered Code
78*35786f68SRobert Mustacchi * without prior written authorization from Intel.
79*35786f68SRobert Mustacchi *
80*35786f68SRobert Mustacchi * 4. Disclaimer and Export Compliance
81*35786f68SRobert Mustacchi *
82*35786f68SRobert Mustacchi * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83*35786f68SRobert Mustacchi * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84*35786f68SRobert Mustacchi * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85*35786f68SRobert Mustacchi * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86*35786f68SRobert Mustacchi * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87*35786f68SRobert Mustacchi * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
88*35786f68SRobert Mustacchi * PARTICULAR PURPOSE.
89*35786f68SRobert Mustacchi *
90*35786f68SRobert Mustacchi * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91*35786f68SRobert Mustacchi * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92*35786f68SRobert Mustacchi * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93*35786f68SRobert Mustacchi * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94*35786f68SRobert Mustacchi * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95*35786f68SRobert Mustacchi * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96*35786f68SRobert Mustacchi * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
97*35786f68SRobert Mustacchi * LIMITED REMEDY.
98*35786f68SRobert Mustacchi *
99*35786f68SRobert Mustacchi * 4.3. Licensee shall not export, either directly or indirectly, any of this
100*35786f68SRobert Mustacchi * software or system incorporating such software without first obtaining any
101*35786f68SRobert Mustacchi * required license or other approval from the U. S. Department of Commerce or
102*35786f68SRobert Mustacchi * any other agency or department of the United States Government. In the
103*35786f68SRobert Mustacchi * event Licensee exports any such software from the United States or
104*35786f68SRobert Mustacchi * re-exports any such software from a foreign destination, Licensee shall
105*35786f68SRobert Mustacchi * ensure that the distribution and export/re-export of the software is in
106*35786f68SRobert Mustacchi * compliance with all laws, regulations, orders, or other restrictions of the
107*35786f68SRobert Mustacchi * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108*35786f68SRobert Mustacchi * any of its subsidiaries will export/re-export any technical data, process,
109*35786f68SRobert Mustacchi * software, or service, directly or indirectly, to any country for which the
110*35786f68SRobert Mustacchi * United States government or any agency thereof requires an export license,
111*35786f68SRobert Mustacchi * other governmental approval, or letter of assurance, without first obtaining
112*35786f68SRobert Mustacchi * such license, approval or letter.
113*35786f68SRobert Mustacchi *
114*35786f68SRobert Mustacchi *****************************************************************************
115*35786f68SRobert Mustacchi *
116*35786f68SRobert Mustacchi * Alternatively, you may choose to be licensed under the terms of the
117*35786f68SRobert Mustacchi * following license:
118*35786f68SRobert Mustacchi *
11926f3cdf0SGordon Ross * Redistribution and use in source and binary forms, with or without
12026f3cdf0SGordon Ross * modification, are permitted provided that the following conditions
12126f3cdf0SGordon Ross * are met:
12226f3cdf0SGordon Ross * 1. Redistributions of source code must retain the above copyright
12326f3cdf0SGordon Ross * notice, this list of conditions, and the following disclaimer,
12426f3cdf0SGordon Ross * without modification.
12526f3cdf0SGordon Ross * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12626f3cdf0SGordon Ross * substantially similar to the "NO WARRANTY" disclaimer below
12726f3cdf0SGordon Ross * ("Disclaimer") and any redistribution must be conditioned upon
12826f3cdf0SGordon Ross * including a substantially similar Disclaimer requirement for further
12926f3cdf0SGordon Ross * binary redistribution.
13026f3cdf0SGordon Ross * 3. Neither the names of the above-listed copyright holders nor the names
13126f3cdf0SGordon Ross * of any contributors may be used to endorse or promote products derived
13226f3cdf0SGordon Ross * from this software without specific prior written permission.
1337c478bd9Sstevel@tonic-gate *
13426f3cdf0SGordon Ross * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
13526f3cdf0SGordon Ross * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136*35786f68SRobert Mustacchi * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
13726f3cdf0SGordon Ross * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
138*35786f68SRobert Mustacchi * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
139*35786f68SRobert Mustacchi * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
140*35786f68SRobert Mustacchi * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
141*35786f68SRobert Mustacchi * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
142*35786f68SRobert Mustacchi * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143*35786f68SRobert Mustacchi * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
144*35786f68SRobert Mustacchi * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
145*35786f68SRobert Mustacchi *
146*35786f68SRobert Mustacchi * Alternatively, you may choose to be licensed under the terms of the
147*35786f68SRobert Mustacchi * GNU General Public License ("GPL") version 2 as published by the Free
148*35786f68SRobert Mustacchi * Software Foundation.
149*35786f68SRobert Mustacchi *
150*35786f68SRobert Mustacchi *****************************************************************************/
1517c478bd9Sstevel@tonic-gate
1527c478bd9Sstevel@tonic-gate #include "acpi.h"
153aa2aa9a6SDana Myers #include "accommon.h"
1547c478bd9Sstevel@tonic-gate #include "acdispat.h"
1557c478bd9Sstevel@tonic-gate #include "acinterp.h"
1567b1019a6SJerry Jelinek #include "amlcode.h"
1577c478bd9Sstevel@tonic-gate
1587c478bd9Sstevel@tonic-gate
1597c478bd9Sstevel@tonic-gate #define _COMPONENT ACPI_EXECUTER
1607c478bd9Sstevel@tonic-gate ACPI_MODULE_NAME ("exfield")
1617c478bd9Sstevel@tonic-gate
1627b1019a6SJerry Jelinek /* Local prototypes */
1637b1019a6SJerry Jelinek
1647b1019a6SJerry Jelinek static UINT32
1657b1019a6SJerry Jelinek AcpiExGetSerialAccessLength (
1667b1019a6SJerry Jelinek UINT32 AccessorType,
1677b1019a6SJerry Jelinek UINT32 AccessLength);
1687b1019a6SJerry Jelinek
1697b1019a6SJerry Jelinek
1707b1019a6SJerry Jelinek /*******************************************************************************
1717b1019a6SJerry Jelinek *
1727b1019a6SJerry Jelinek * FUNCTION: AcpiExGetSerialAccessLength
1737b1019a6SJerry Jelinek *
1747b1019a6SJerry Jelinek * PARAMETERS: AccessorType - The type of the protocol indicated by region
1757b1019a6SJerry Jelinek * field access attributes
1767b1019a6SJerry Jelinek * AccessLength - The access length of the region field
1777b1019a6SJerry Jelinek *
1787b1019a6SJerry Jelinek * RETURN: Decoded access length
1797b1019a6SJerry Jelinek *
1807b1019a6SJerry Jelinek * DESCRIPTION: This routine returns the length of the GenericSerialBus
1817b1019a6SJerry Jelinek * protocol bytes
1827b1019a6SJerry Jelinek *
1837b1019a6SJerry Jelinek ******************************************************************************/
1847b1019a6SJerry Jelinek
1857b1019a6SJerry Jelinek static UINT32
AcpiExGetSerialAccessLength(UINT32 AccessorType,UINT32 AccessLength)1867b1019a6SJerry Jelinek AcpiExGetSerialAccessLength (
1877b1019a6SJerry Jelinek UINT32 AccessorType,
1887b1019a6SJerry Jelinek UINT32 AccessLength)
1897b1019a6SJerry Jelinek {
1907b1019a6SJerry Jelinek UINT32 Length;
1917b1019a6SJerry Jelinek
1927b1019a6SJerry Jelinek
1937b1019a6SJerry Jelinek switch (AccessorType)
1947b1019a6SJerry Jelinek {
1957b1019a6SJerry Jelinek case AML_FIELD_ATTRIB_QUICK:
1967b1019a6SJerry Jelinek
1977b1019a6SJerry Jelinek Length = 0;
1987b1019a6SJerry Jelinek break;
1997b1019a6SJerry Jelinek
2007b1019a6SJerry Jelinek case AML_FIELD_ATTRIB_SEND_RCV:
2017b1019a6SJerry Jelinek case AML_FIELD_ATTRIB_BYTE:
2027b1019a6SJerry Jelinek
2037b1019a6SJerry Jelinek Length = 1;
2047b1019a6SJerry Jelinek break;
2057b1019a6SJerry Jelinek
2067b1019a6SJerry Jelinek case AML_FIELD_ATTRIB_WORD:
2077b1019a6SJerry Jelinek case AML_FIELD_ATTRIB_WORD_CALL:
2087b1019a6SJerry Jelinek
2097b1019a6SJerry Jelinek Length = 2;
2107b1019a6SJerry Jelinek break;
2117b1019a6SJerry Jelinek
2127b1019a6SJerry Jelinek case AML_FIELD_ATTRIB_MULTIBYTE:
2137b1019a6SJerry Jelinek case AML_FIELD_ATTRIB_RAW_BYTES:
2147b1019a6SJerry Jelinek case AML_FIELD_ATTRIB_RAW_PROCESS:
2157b1019a6SJerry Jelinek
2167b1019a6SJerry Jelinek Length = AccessLength;
2177b1019a6SJerry Jelinek break;
2187b1019a6SJerry Jelinek
2197b1019a6SJerry Jelinek case AML_FIELD_ATTRIB_BLOCK:
2207b1019a6SJerry Jelinek case AML_FIELD_ATTRIB_BLOCK_CALL:
2217b1019a6SJerry Jelinek default:
2227b1019a6SJerry Jelinek
2237b1019a6SJerry Jelinek Length = ACPI_GSBUS_BUFFER_SIZE - 2;
2247b1019a6SJerry Jelinek break;
2257b1019a6SJerry Jelinek }
2267b1019a6SJerry Jelinek
2277b1019a6SJerry Jelinek return (Length);
2287b1019a6SJerry Jelinek }
2297b1019a6SJerry Jelinek
2307c478bd9Sstevel@tonic-gate
2317c478bd9Sstevel@tonic-gate /*******************************************************************************
2327c478bd9Sstevel@tonic-gate *
2337c478bd9Sstevel@tonic-gate * FUNCTION: AcpiExReadDataFromField
2347c478bd9Sstevel@tonic-gate *
2357c478bd9Sstevel@tonic-gate * PARAMETERS: WalkState - Current execution state
2367c478bd9Sstevel@tonic-gate * ObjDesc - The named field
2377c478bd9Sstevel@tonic-gate * RetBufferDesc - Where the return data object is stored
2387c478bd9Sstevel@tonic-gate *
2397c478bd9Sstevel@tonic-gate * RETURN: Status
2407c478bd9Sstevel@tonic-gate *
2417b1019a6SJerry Jelinek * DESCRIPTION: Read from a named field. Returns either an Integer or a
2427c478bd9Sstevel@tonic-gate * Buffer, depending on the size of the field.
2437c478bd9Sstevel@tonic-gate *
2447c478bd9Sstevel@tonic-gate ******************************************************************************/
2457c478bd9Sstevel@tonic-gate
2467c478bd9Sstevel@tonic-gate ACPI_STATUS
AcpiExReadDataFromField(ACPI_WALK_STATE * WalkState,ACPI_OPERAND_OBJECT * ObjDesc,ACPI_OPERAND_OBJECT ** RetBufferDesc)2477c478bd9Sstevel@tonic-gate AcpiExReadDataFromField (
2487c478bd9Sstevel@tonic-gate ACPI_WALK_STATE *WalkState,
2497c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT *ObjDesc,
2507c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT **RetBufferDesc)
2517c478bd9Sstevel@tonic-gate {
2527c478bd9Sstevel@tonic-gate ACPI_STATUS Status;
2537c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT *BufferDesc;
2547c478bd9Sstevel@tonic-gate ACPI_SIZE Length;
2557c478bd9Sstevel@tonic-gate void *Buffer;
25657190917SDana Myers UINT32 Function;
2577b1019a6SJerry Jelinek UINT16 AccessorType;
2587c478bd9Sstevel@tonic-gate
2597c478bd9Sstevel@tonic-gate
26027f7c583Smyers ACPI_FUNCTION_TRACE_PTR (ExReadDataFromField, ObjDesc);
2617c478bd9Sstevel@tonic-gate
2627c478bd9Sstevel@tonic-gate
2637c478bd9Sstevel@tonic-gate /* Parameter validation */
2647c478bd9Sstevel@tonic-gate
2657c478bd9Sstevel@tonic-gate if (!ObjDesc)
2667c478bd9Sstevel@tonic-gate {
2677c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_AML_NO_OPERAND);
2687c478bd9Sstevel@tonic-gate }
269450d6964Smyers if (!RetBufferDesc)
270450d6964Smyers {
271450d6964Smyers return_ACPI_STATUS (AE_BAD_PARAMETER);
272450d6964Smyers }
2737c478bd9Sstevel@tonic-gate
274aa2aa9a6SDana Myers if (ObjDesc->Common.Type == ACPI_TYPE_BUFFER_FIELD)
2757c478bd9Sstevel@tonic-gate {
2767c478bd9Sstevel@tonic-gate /*
2777c478bd9Sstevel@tonic-gate * If the BufferField arguments have not been previously evaluated,
2787c478bd9Sstevel@tonic-gate * evaluate them now and save the results.
2797c478bd9Sstevel@tonic-gate */
2807c478bd9Sstevel@tonic-gate if (!(ObjDesc->Common.Flags & AOPOBJ_DATA_VALID))
2817c478bd9Sstevel@tonic-gate {
2827c478bd9Sstevel@tonic-gate Status = AcpiDsGetBufferFieldArguments (ObjDesc);
2837c478bd9Sstevel@tonic-gate if (ACPI_FAILURE (Status))
2847c478bd9Sstevel@tonic-gate {
2857c478bd9Sstevel@tonic-gate return_ACPI_STATUS (Status);
2867c478bd9Sstevel@tonic-gate }
2877c478bd9Sstevel@tonic-gate }
2887c478bd9Sstevel@tonic-gate }
289aa2aa9a6SDana Myers else if ((ObjDesc->Common.Type == ACPI_TYPE_LOCAL_REGION_FIELD) &&
29057190917SDana Myers (ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_SMBUS ||
2917b1019a6SJerry Jelinek ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_GSBUS ||
29257190917SDana Myers ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_IPMI))
2937c478bd9Sstevel@tonic-gate {
2947c478bd9Sstevel@tonic-gate /*
2957b1019a6SJerry Jelinek * This is an SMBus, GSBus or IPMI read. We must create a buffer to
2967b1019a6SJerry Jelinek * hold the data and then directly access the region handler.
29757190917SDana Myers *
2987b1019a6SJerry Jelinek * Note: SMBus and GSBus protocol value is passed in upper 16-bits
2997b1019a6SJerry Jelinek * of Function
3007c478bd9Sstevel@tonic-gate */
3017b1019a6SJerry Jelinek if (ObjDesc->Field.RegionObj->Region.SpaceId ==
3027b1019a6SJerry Jelinek ACPI_ADR_SPACE_SMBUS)
30357190917SDana Myers {
30457190917SDana Myers Length = ACPI_SMBUS_BUFFER_SIZE;
30557190917SDana Myers Function = ACPI_READ | (ObjDesc->Field.Attribute << 16);
30657190917SDana Myers }
3077b1019a6SJerry Jelinek else if (ObjDesc->Field.RegionObj->Region.SpaceId ==
3087b1019a6SJerry Jelinek ACPI_ADR_SPACE_GSBUS)
3097b1019a6SJerry Jelinek {
3107b1019a6SJerry Jelinek AccessorType = ObjDesc->Field.Attribute;
3117b1019a6SJerry Jelinek Length = AcpiExGetSerialAccessLength (
3127b1019a6SJerry Jelinek AccessorType, ObjDesc->Field.AccessLength);
3137b1019a6SJerry Jelinek
3147b1019a6SJerry Jelinek /*
3157b1019a6SJerry Jelinek * Add additional 2 bytes for the GenericSerialBus data buffer:
3167b1019a6SJerry Jelinek *
3177b1019a6SJerry Jelinek * Status; (Byte 0 of the data buffer)
3187b1019a6SJerry Jelinek * Length; (Byte 1 of the data buffer)
3197b1019a6SJerry Jelinek * Data[x-1]: (Bytes 2-x of the arbitrary length data buffer)
3207b1019a6SJerry Jelinek */
3217b1019a6SJerry Jelinek Length += 2;
3227b1019a6SJerry Jelinek Function = ACPI_READ | (AccessorType << 16);
3237b1019a6SJerry Jelinek }
32457190917SDana Myers else /* IPMI */
32557190917SDana Myers {
32657190917SDana Myers Length = ACPI_IPMI_BUFFER_SIZE;
32757190917SDana Myers Function = ACPI_READ;
32857190917SDana Myers }
32957190917SDana Myers
33057190917SDana Myers BufferDesc = AcpiUtCreateBufferObject (Length);
3317c478bd9Sstevel@tonic-gate if (!BufferDesc)
3327c478bd9Sstevel@tonic-gate {
3337c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_NO_MEMORY);
3347c478bd9Sstevel@tonic-gate }
3357c478bd9Sstevel@tonic-gate
3367c478bd9Sstevel@tonic-gate /* Lock entire transaction if requested */
3377c478bd9Sstevel@tonic-gate
338db2bae30SDana Myers AcpiExAcquireGlobalLock (ObjDesc->CommonField.FieldFlags);
3397c478bd9Sstevel@tonic-gate
34057190917SDana Myers /* Call the region handler for the read */
34157190917SDana Myers
3427c478bd9Sstevel@tonic-gate Status = AcpiExAccessRegion (ObjDesc, 0,
3437b1019a6SJerry Jelinek ACPI_CAST_PTR (UINT64, BufferDesc->Buffer.Pointer), Function);
3447b1019a6SJerry Jelinek
345db2bae30SDana Myers AcpiExReleaseGlobalLock (ObjDesc->CommonField.FieldFlags);
3467c478bd9Sstevel@tonic-gate goto Exit;
3477c478bd9Sstevel@tonic-gate }
3487c478bd9Sstevel@tonic-gate
3497c478bd9Sstevel@tonic-gate /*
3507c478bd9Sstevel@tonic-gate * Allocate a buffer for the contents of the field.
3517c478bd9Sstevel@tonic-gate *
35226f3cdf0SGordon Ross * If the field is larger than the current integer width, create
3537b1019a6SJerry Jelinek * a BUFFER to hold it. Otherwise, use an INTEGER. This allows
3547c478bd9Sstevel@tonic-gate * the use of arithmetic operators on the returned value if the
3557c478bd9Sstevel@tonic-gate * field size is equal or smaller than an Integer.
3567c478bd9Sstevel@tonic-gate *
3577c478bd9Sstevel@tonic-gate * Note: Field.length is in bits.
3587c478bd9Sstevel@tonic-gate */
3597b1019a6SJerry Jelinek Length = (ACPI_SIZE) ACPI_ROUND_BITS_UP_TO_BYTES (
3607b1019a6SJerry Jelinek ObjDesc->Field.BitLength);
3617b1019a6SJerry Jelinek
3627c478bd9Sstevel@tonic-gate if (Length > AcpiGbl_IntegerByteWidth)
3637c478bd9Sstevel@tonic-gate {
3647c478bd9Sstevel@tonic-gate /* Field is too large for an Integer, create a Buffer instead */
3657c478bd9Sstevel@tonic-gate
3667c478bd9Sstevel@tonic-gate BufferDesc = AcpiUtCreateBufferObject (Length);
3677c478bd9Sstevel@tonic-gate if (!BufferDesc)
3687c478bd9Sstevel@tonic-gate {
3697c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_NO_MEMORY);
3707c478bd9Sstevel@tonic-gate }
3717c478bd9Sstevel@tonic-gate Buffer = BufferDesc->Buffer.Pointer;
3727c478bd9Sstevel@tonic-gate }
3737c478bd9Sstevel@tonic-gate else
3747c478bd9Sstevel@tonic-gate {
3757c478bd9Sstevel@tonic-gate /* Field will fit within an Integer (normal case) */
3767c478bd9Sstevel@tonic-gate
37757190917SDana Myers BufferDesc = AcpiUtCreateIntegerObject ((UINT64) 0);
3787c478bd9Sstevel@tonic-gate if (!BufferDesc)
3797c478bd9Sstevel@tonic-gate {
3807c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_NO_MEMORY);
3817c478bd9Sstevel@tonic-gate }
3827c478bd9Sstevel@tonic-gate
3837c478bd9Sstevel@tonic-gate Length = AcpiGbl_IntegerByteWidth;
3847c478bd9Sstevel@tonic-gate Buffer = &BufferDesc->Integer.Value;
3857c478bd9Sstevel@tonic-gate }
3867c478bd9Sstevel@tonic-gate
3877b1019a6SJerry Jelinek if ((ObjDesc->Common.Type == ACPI_TYPE_LOCAL_REGION_FIELD) &&
3887b1019a6SJerry Jelinek (ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_GPIO))
3897b1019a6SJerry Jelinek {
3907b1019a6SJerry Jelinek /*
3917b1019a6SJerry Jelinek * For GPIO (GeneralPurposeIo), the Address will be the bit offset
3927b1019a6SJerry Jelinek * from the previous Connection() operator, making it effectively a
3937b1019a6SJerry Jelinek * pin number index. The BitLength is the length of the field, which
3947b1019a6SJerry Jelinek * is thus the number of pins.
3957b1019a6SJerry Jelinek */
3967b1019a6SJerry Jelinek ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
3977b1019a6SJerry Jelinek "GPIO FieldRead [FROM]: Pin %u Bits %u\n",
3987b1019a6SJerry Jelinek ObjDesc->Field.PinNumberIndex, ObjDesc->Field.BitLength));
3997b1019a6SJerry Jelinek
4007b1019a6SJerry Jelinek /* Lock entire transaction if requested */
4017b1019a6SJerry Jelinek
4027b1019a6SJerry Jelinek AcpiExAcquireGlobalLock (ObjDesc->CommonField.FieldFlags);
4037b1019a6SJerry Jelinek
4047b1019a6SJerry Jelinek /* Perform the write */
4057b1019a6SJerry Jelinek
4067b1019a6SJerry Jelinek Status = AcpiExAccessRegion (
4077b1019a6SJerry Jelinek ObjDesc, 0, (UINT64 *) Buffer, ACPI_READ);
4087b1019a6SJerry Jelinek
4097b1019a6SJerry Jelinek AcpiExReleaseGlobalLock (ObjDesc->CommonField.FieldFlags);
4107b1019a6SJerry Jelinek if (ACPI_FAILURE (Status))
4117b1019a6SJerry Jelinek {
4127b1019a6SJerry Jelinek AcpiUtRemoveReference (BufferDesc);
4137b1019a6SJerry Jelinek }
4147b1019a6SJerry Jelinek else
4157b1019a6SJerry Jelinek {
4167b1019a6SJerry Jelinek *RetBufferDesc = BufferDesc;
4177b1019a6SJerry Jelinek }
4187b1019a6SJerry Jelinek return_ACPI_STATUS (Status);
4197b1019a6SJerry Jelinek }
4207b1019a6SJerry Jelinek
4217c478bd9Sstevel@tonic-gate ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
4227c478bd9Sstevel@tonic-gate "FieldRead [TO]: Obj %p, Type %X, Buf %p, ByteLen %X\n",
423aa2aa9a6SDana Myers ObjDesc, ObjDesc->Common.Type, Buffer, (UINT32) Length));
4247c478bd9Sstevel@tonic-gate ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
4257c478bd9Sstevel@tonic-gate "FieldRead [FROM]: BitLen %X, BitOff %X, ByteOff %X\n",
4267c478bd9Sstevel@tonic-gate ObjDesc->CommonField.BitLength,
4277c478bd9Sstevel@tonic-gate ObjDesc->CommonField.StartFieldBitOffset,
4287c478bd9Sstevel@tonic-gate ObjDesc->CommonField.BaseByteOffset));
4297c478bd9Sstevel@tonic-gate
4307c478bd9Sstevel@tonic-gate /* Lock entire transaction if requested */
4317c478bd9Sstevel@tonic-gate
432db2bae30SDana Myers AcpiExAcquireGlobalLock (ObjDesc->CommonField.FieldFlags);
4337c478bd9Sstevel@tonic-gate
4347c478bd9Sstevel@tonic-gate /* Read from the field */
4357c478bd9Sstevel@tonic-gate
4367c478bd9Sstevel@tonic-gate Status = AcpiExExtractFromField (ObjDesc, Buffer, (UINT32) Length);
437db2bae30SDana Myers AcpiExReleaseGlobalLock (ObjDesc->CommonField.FieldFlags);
4387c478bd9Sstevel@tonic-gate
4397c478bd9Sstevel@tonic-gate
4407c478bd9Sstevel@tonic-gate Exit:
4417c478bd9Sstevel@tonic-gate if (ACPI_FAILURE (Status))
4427c478bd9Sstevel@tonic-gate {
4437c478bd9Sstevel@tonic-gate AcpiUtRemoveReference (BufferDesc);
4447c478bd9Sstevel@tonic-gate }
445450d6964Smyers else
4467c478bd9Sstevel@tonic-gate {
4477c478bd9Sstevel@tonic-gate *RetBufferDesc = BufferDesc;
4487c478bd9Sstevel@tonic-gate }
4497c478bd9Sstevel@tonic-gate
4507c478bd9Sstevel@tonic-gate return_ACPI_STATUS (Status);
4517c478bd9Sstevel@tonic-gate }
4527c478bd9Sstevel@tonic-gate
4537c478bd9Sstevel@tonic-gate
4547c478bd9Sstevel@tonic-gate /*******************************************************************************
4557c478bd9Sstevel@tonic-gate *
4567c478bd9Sstevel@tonic-gate * FUNCTION: AcpiExWriteDataToField
4577c478bd9Sstevel@tonic-gate *
4587c478bd9Sstevel@tonic-gate * PARAMETERS: SourceDesc - Contains data to write
4597c478bd9Sstevel@tonic-gate * ObjDesc - The named field
4607c478bd9Sstevel@tonic-gate * ResultDesc - Where the return value is returned, if any
4617c478bd9Sstevel@tonic-gate *
4627c478bd9Sstevel@tonic-gate * RETURN: Status
4637c478bd9Sstevel@tonic-gate *
4647c478bd9Sstevel@tonic-gate * DESCRIPTION: Write to a named field
4657c478bd9Sstevel@tonic-gate *
4667c478bd9Sstevel@tonic-gate ******************************************************************************/
4677c478bd9Sstevel@tonic-gate
4687c478bd9Sstevel@tonic-gate ACPI_STATUS
AcpiExWriteDataToField(ACPI_OPERAND_OBJECT * SourceDesc,ACPI_OPERAND_OBJECT * ObjDesc,ACPI_OPERAND_OBJECT ** ResultDesc)4697c478bd9Sstevel@tonic-gate AcpiExWriteDataToField (
4707c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT *SourceDesc,
4717c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT *ObjDesc,
4727c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT **ResultDesc)
4737c478bd9Sstevel@tonic-gate {
4747c478bd9Sstevel@tonic-gate ACPI_STATUS Status;
4757c478bd9Sstevel@tonic-gate UINT32 Length;
4767c478bd9Sstevel@tonic-gate void *Buffer;
4777c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT *BufferDesc;
47857190917SDana Myers UINT32 Function;
4797b1019a6SJerry Jelinek UINT16 AccessorType;
4807c478bd9Sstevel@tonic-gate
4817c478bd9Sstevel@tonic-gate
48227f7c583Smyers ACPI_FUNCTION_TRACE_PTR (ExWriteDataToField, ObjDesc);
4837c478bd9Sstevel@tonic-gate
4847c478bd9Sstevel@tonic-gate
4857c478bd9Sstevel@tonic-gate /* Parameter validation */
4867c478bd9Sstevel@tonic-gate
4877c478bd9Sstevel@tonic-gate if (!SourceDesc || !ObjDesc)
4887c478bd9Sstevel@tonic-gate {
4897c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_AML_NO_OPERAND);
4907c478bd9Sstevel@tonic-gate }
4917c478bd9Sstevel@tonic-gate
492aa2aa9a6SDana Myers if (ObjDesc->Common.Type == ACPI_TYPE_BUFFER_FIELD)
4937c478bd9Sstevel@tonic-gate {
4947c478bd9Sstevel@tonic-gate /*
4957c478bd9Sstevel@tonic-gate * If the BufferField arguments have not been previously evaluated,
4967c478bd9Sstevel@tonic-gate * evaluate them now and save the results.
4977c478bd9Sstevel@tonic-gate */
4987c478bd9Sstevel@tonic-gate if (!(ObjDesc->Common.Flags & AOPOBJ_DATA_VALID))
4997c478bd9Sstevel@tonic-gate {
5007c478bd9Sstevel@tonic-gate Status = AcpiDsGetBufferFieldArguments (ObjDesc);
5017c478bd9Sstevel@tonic-gate if (ACPI_FAILURE (Status))
5027c478bd9Sstevel@tonic-gate {
5037c478bd9Sstevel@tonic-gate return_ACPI_STATUS (Status);
5047c478bd9Sstevel@tonic-gate }
5057c478bd9Sstevel@tonic-gate }
5067c478bd9Sstevel@tonic-gate }
507aa2aa9a6SDana Myers else if ((ObjDesc->Common.Type == ACPI_TYPE_LOCAL_REGION_FIELD) &&
50857190917SDana Myers (ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_SMBUS ||
5097b1019a6SJerry Jelinek ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_GSBUS ||
51057190917SDana Myers ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_IPMI))
5117c478bd9Sstevel@tonic-gate {
5127c478bd9Sstevel@tonic-gate /*
5137b1019a6SJerry Jelinek * This is an SMBus, GSBus or IPMI write. We will bypass the entire
5147b1019a6SJerry Jelinek * field mechanism and handoff the buffer directly to the handler.
5157b1019a6SJerry Jelinek * For these address spaces, the buffer is bi-directional; on a
5167b1019a6SJerry Jelinek * write, return data is returned in the same buffer.
51757190917SDana Myers *
51857190917SDana Myers * Source must be a buffer of sufficient size:
5197b1019a6SJerry Jelinek * ACPI_SMBUS_BUFFER_SIZE, ACPI_GSBUS_BUFFER_SIZE, or
5207b1019a6SJerry Jelinek * ACPI_IPMI_BUFFER_SIZE.
5217c478bd9Sstevel@tonic-gate *
5227b1019a6SJerry Jelinek * Note: SMBus and GSBus protocol type is passed in upper 16-bits
5237b1019a6SJerry Jelinek * of Function
5247c478bd9Sstevel@tonic-gate */
525aa2aa9a6SDana Myers if (SourceDesc->Common.Type != ACPI_TYPE_BUFFER)
5267c478bd9Sstevel@tonic-gate {
52757190917SDana Myers ACPI_ERROR ((AE_INFO,
5287b1019a6SJerry Jelinek "SMBus/IPMI/GenericSerialBus write requires "
5297b1019a6SJerry Jelinek "Buffer, found type %s",
5307c478bd9Sstevel@tonic-gate AcpiUtGetObjectTypeName (SourceDesc)));
5317c478bd9Sstevel@tonic-gate
5327c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
5337c478bd9Sstevel@tonic-gate }
5347c478bd9Sstevel@tonic-gate
5357b1019a6SJerry Jelinek if (ObjDesc->Field.RegionObj->Region.SpaceId ==
5367b1019a6SJerry Jelinek ACPI_ADR_SPACE_SMBUS)
53757190917SDana Myers {
53857190917SDana Myers Length = ACPI_SMBUS_BUFFER_SIZE;
53957190917SDana Myers Function = ACPI_WRITE | (ObjDesc->Field.Attribute << 16);
54057190917SDana Myers }
5417b1019a6SJerry Jelinek else if (ObjDesc->Field.RegionObj->Region.SpaceId ==
5427b1019a6SJerry Jelinek ACPI_ADR_SPACE_GSBUS)
5437b1019a6SJerry Jelinek {
5447b1019a6SJerry Jelinek AccessorType = ObjDesc->Field.Attribute;
5457b1019a6SJerry Jelinek Length = AcpiExGetSerialAccessLength (
5467b1019a6SJerry Jelinek AccessorType, ObjDesc->Field.AccessLength);
5477b1019a6SJerry Jelinek
5487b1019a6SJerry Jelinek /*
5497b1019a6SJerry Jelinek * Add additional 2 bytes for the GenericSerialBus data buffer:
5507b1019a6SJerry Jelinek *
5517b1019a6SJerry Jelinek * Status; (Byte 0 of the data buffer)
5527b1019a6SJerry Jelinek * Length; (Byte 1 of the data buffer)
5537b1019a6SJerry Jelinek * Data[x-1]: (Bytes 2-x of the arbitrary length data buffer)
5547b1019a6SJerry Jelinek */
5557b1019a6SJerry Jelinek Length += 2;
5567b1019a6SJerry Jelinek Function = ACPI_WRITE | (AccessorType << 16);
5577b1019a6SJerry Jelinek }
55857190917SDana Myers else /* IPMI */
55957190917SDana Myers {
56057190917SDana Myers Length = ACPI_IPMI_BUFFER_SIZE;
56157190917SDana Myers Function = ACPI_WRITE;
56257190917SDana Myers }
56357190917SDana Myers
56457190917SDana Myers if (SourceDesc->Buffer.Length < Length)
5657c478bd9Sstevel@tonic-gate {
56630082d0cSmyers ACPI_ERROR ((AE_INFO,
5677b1019a6SJerry Jelinek "SMBus/IPMI/GenericSerialBus write requires "
5687b1019a6SJerry Jelinek "Buffer of length %u, found length %u",
56957190917SDana Myers Length, SourceDesc->Buffer.Length));
5707c478bd9Sstevel@tonic-gate
5717c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_AML_BUFFER_LIMIT);
5727c478bd9Sstevel@tonic-gate }
5737c478bd9Sstevel@tonic-gate
57457190917SDana Myers /* Create the bi-directional buffer */
57557190917SDana Myers
57657190917SDana Myers BufferDesc = AcpiUtCreateBufferObject (Length);
5777c478bd9Sstevel@tonic-gate if (!BufferDesc)
5787c478bd9Sstevel@tonic-gate {
5797c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_NO_MEMORY);
5807c478bd9Sstevel@tonic-gate }
5817c478bd9Sstevel@tonic-gate
5827c478bd9Sstevel@tonic-gate Buffer = BufferDesc->Buffer.Pointer;
5837b1019a6SJerry Jelinek memcpy (Buffer, SourceDesc->Buffer.Pointer, Length);
5847c478bd9Sstevel@tonic-gate
5857c478bd9Sstevel@tonic-gate /* Lock entire transaction if requested */
5867c478bd9Sstevel@tonic-gate
587db2bae30SDana Myers AcpiExAcquireGlobalLock (ObjDesc->CommonField.FieldFlags);
5887c478bd9Sstevel@tonic-gate
5897c478bd9Sstevel@tonic-gate /*
5907c478bd9Sstevel@tonic-gate * Perform the write (returns status and perhaps data in the
5917c478bd9Sstevel@tonic-gate * same buffer)
5927c478bd9Sstevel@tonic-gate */
5937b1019a6SJerry Jelinek Status = AcpiExAccessRegion (
5947b1019a6SJerry Jelinek ObjDesc, 0, (UINT64 *) Buffer, Function);
595db2bae30SDana Myers AcpiExReleaseGlobalLock (ObjDesc->CommonField.FieldFlags);
5967c478bd9Sstevel@tonic-gate
5977c478bd9Sstevel@tonic-gate *ResultDesc = BufferDesc;
5987c478bd9Sstevel@tonic-gate return_ACPI_STATUS (Status);
5997c478bd9Sstevel@tonic-gate }
6007b1019a6SJerry Jelinek else if ((ObjDesc->Common.Type == ACPI_TYPE_LOCAL_REGION_FIELD) &&
6017b1019a6SJerry Jelinek (ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_GPIO))
6027b1019a6SJerry Jelinek {
6037b1019a6SJerry Jelinek /*
6047b1019a6SJerry Jelinek * For GPIO (GeneralPurposeIo), we will bypass the entire field
6057b1019a6SJerry Jelinek * mechanism and handoff the bit address and bit width directly to
6067b1019a6SJerry Jelinek * the handler. The Address will be the bit offset
6077b1019a6SJerry Jelinek * from the previous Connection() operator, making it effectively a
6087b1019a6SJerry Jelinek * pin number index. The BitLength is the length of the field, which
6097b1019a6SJerry Jelinek * is thus the number of pins.
6107b1019a6SJerry Jelinek */
6117b1019a6SJerry Jelinek if (SourceDesc->Common.Type != ACPI_TYPE_INTEGER)
6127b1019a6SJerry Jelinek {
6137b1019a6SJerry Jelinek return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
6147b1019a6SJerry Jelinek }
6157b1019a6SJerry Jelinek
6167b1019a6SJerry Jelinek ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
6177b1019a6SJerry Jelinek "GPIO FieldWrite [FROM]: (%s:%X), Val %.8X [TO]: Pin %u Bits %u\n",
6187b1019a6SJerry Jelinek AcpiUtGetTypeName (SourceDesc->Common.Type),
6197b1019a6SJerry Jelinek SourceDesc->Common.Type, (UINT32) SourceDesc->Integer.Value,
6207b1019a6SJerry Jelinek ObjDesc->Field.PinNumberIndex, ObjDesc->Field.BitLength));
6217b1019a6SJerry Jelinek
6227b1019a6SJerry Jelinek Buffer = &SourceDesc->Integer.Value;
6237b1019a6SJerry Jelinek
6247b1019a6SJerry Jelinek /* Lock entire transaction if requested */
6257b1019a6SJerry Jelinek
6267b1019a6SJerry Jelinek AcpiExAcquireGlobalLock (ObjDesc->CommonField.FieldFlags);
6277b1019a6SJerry Jelinek
6287b1019a6SJerry Jelinek /* Perform the write */
6297b1019a6SJerry Jelinek
6307b1019a6SJerry Jelinek Status = AcpiExAccessRegion (
6317b1019a6SJerry Jelinek ObjDesc, 0, (UINT64 *) Buffer, ACPI_WRITE);
6327b1019a6SJerry Jelinek AcpiExReleaseGlobalLock (ObjDesc->CommonField.FieldFlags);
6337b1019a6SJerry Jelinek return_ACPI_STATUS (Status);
6347b1019a6SJerry Jelinek }
6357c478bd9Sstevel@tonic-gate
6367c478bd9Sstevel@tonic-gate /* Get a pointer to the data to be written */
6377c478bd9Sstevel@tonic-gate
638aa2aa9a6SDana Myers switch (SourceDesc->Common.Type)
6397c478bd9Sstevel@tonic-gate {
6407c478bd9Sstevel@tonic-gate case ACPI_TYPE_INTEGER:
6417b1019a6SJerry Jelinek
6427c478bd9Sstevel@tonic-gate Buffer = &SourceDesc->Integer.Value;
6437c478bd9Sstevel@tonic-gate Length = sizeof (SourceDesc->Integer.Value);
6447c478bd9Sstevel@tonic-gate break;
6457c478bd9Sstevel@tonic-gate
6467c478bd9Sstevel@tonic-gate case ACPI_TYPE_BUFFER:
6477b1019a6SJerry Jelinek
6487c478bd9Sstevel@tonic-gate Buffer = SourceDesc->Buffer.Pointer;
6497c478bd9Sstevel@tonic-gate Length = SourceDesc->Buffer.Length;
6507c478bd9Sstevel@tonic-gate break;
6517c478bd9Sstevel@tonic-gate
6527c478bd9Sstevel@tonic-gate case ACPI_TYPE_STRING:
6537b1019a6SJerry Jelinek
6547c478bd9Sstevel@tonic-gate Buffer = SourceDesc->String.Pointer;
6557c478bd9Sstevel@tonic-gate Length = SourceDesc->String.Length;
6567c478bd9Sstevel@tonic-gate break;
6577c478bd9Sstevel@tonic-gate
6587c478bd9Sstevel@tonic-gate default:
6597b1019a6SJerry Jelinek
6607c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
6617c478bd9Sstevel@tonic-gate }
6627c478bd9Sstevel@tonic-gate
6637c478bd9Sstevel@tonic-gate ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
6647c478bd9Sstevel@tonic-gate "FieldWrite [FROM]: Obj %p (%s:%X), Buf %p, ByteLen %X\n",
665aa2aa9a6SDana Myers SourceDesc, AcpiUtGetTypeName (SourceDesc->Common.Type),
666aa2aa9a6SDana Myers SourceDesc->Common.Type, Buffer, Length));
6677c478bd9Sstevel@tonic-gate
6687c478bd9Sstevel@tonic-gate ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
6697c478bd9Sstevel@tonic-gate "FieldWrite [TO]: Obj %p (%s:%X), BitLen %X, BitOff %X, ByteOff %X\n",
670aa2aa9a6SDana Myers ObjDesc, AcpiUtGetTypeName (ObjDesc->Common.Type),
671aa2aa9a6SDana Myers ObjDesc->Common.Type,
6727c478bd9Sstevel@tonic-gate ObjDesc->CommonField.BitLength,
6737c478bd9Sstevel@tonic-gate ObjDesc->CommonField.StartFieldBitOffset,
6747c478bd9Sstevel@tonic-gate ObjDesc->CommonField.BaseByteOffset));
6757c478bd9Sstevel@tonic-gate
6767c478bd9Sstevel@tonic-gate /* Lock entire transaction if requested */
6777c478bd9Sstevel@tonic-gate
678db2bae30SDana Myers AcpiExAcquireGlobalLock (ObjDesc->CommonField.FieldFlags);
6797c478bd9Sstevel@tonic-gate
6807c478bd9Sstevel@tonic-gate /* Write to the field */
6817c478bd9Sstevel@tonic-gate
6827c478bd9Sstevel@tonic-gate Status = AcpiExInsertIntoField (ObjDesc, Buffer, Length);
683db2bae30SDana Myers AcpiExReleaseGlobalLock (ObjDesc->CommonField.FieldFlags);
6847c478bd9Sstevel@tonic-gate
6857c478bd9Sstevel@tonic-gate return_ACPI_STATUS (Status);
6867c478bd9Sstevel@tonic-gate }
687