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Diffstat (limited to 'sys/contrib/dev/acpica/exfield.c')
| -rw-r--r-- | sys/contrib/dev/acpica/exfield.c | 475 |
1 files changed, 0 insertions, 475 deletions
diff --git a/sys/contrib/dev/acpica/exfield.c b/sys/contrib/dev/acpica/exfield.c deleted file mode 100644 index c4cbf23..0000000 --- a/sys/contrib/dev/acpica/exfield.c +++ /dev/null @@ -1,475 +0,0 @@ -/****************************************************************************** - * - * Module Name: exfield - ACPI AML (p-code) execution - field manipulation - * $Revision: 1.131 $ - * - *****************************************************************************/ - -/****************************************************************************** - * - * 1. Copyright Notice - * - * Some or all of this work - Copyright (c) 1999 - 2007, 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 __EXFIELD_C__ - -#include <contrib/dev/acpica/acpi.h> -#include <contrib/dev/acpica/acdispat.h> -#include <contrib/dev/acpica/acinterp.h> - - -#define _COMPONENT ACPI_EXECUTER - ACPI_MODULE_NAME ("exfield") - - -/******************************************************************************* - * - * FUNCTION: AcpiExReadDataFromField - * - * PARAMETERS: WalkState - Current execution state - * ObjDesc - The named field - * RetBufferDesc - Where the return data object is stored - * - * RETURN: Status - * - * DESCRIPTION: Read from a named field. Returns either an Integer or a - * Buffer, depending on the size of the field. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiExReadDataFromField ( - ACPI_WALK_STATE *WalkState, - ACPI_OPERAND_OBJECT *ObjDesc, - ACPI_OPERAND_OBJECT **RetBufferDesc) -{ - ACPI_STATUS Status; - ACPI_OPERAND_OBJECT *BufferDesc; - ACPI_SIZE Length; - void *Buffer; - - - ACPI_FUNCTION_TRACE_PTR (ExReadDataFromField, ObjDesc); - - - /* Parameter validation */ - - if (!ObjDesc) - { - return_ACPI_STATUS (AE_AML_NO_OPERAND); - } - if (!RetBufferDesc) - { - return_ACPI_STATUS (AE_BAD_PARAMETER); - } - - if (ACPI_GET_OBJECT_TYPE (ObjDesc) == ACPI_TYPE_BUFFER_FIELD) - { - /* - * If the BufferField arguments have not been previously evaluated, - * evaluate them now and save the results. - */ - if (!(ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)) - { - Status = AcpiDsGetBufferFieldArguments (ObjDesc); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - } - } - else if ((ACPI_GET_OBJECT_TYPE (ObjDesc) == ACPI_TYPE_LOCAL_REGION_FIELD) && - (ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_SMBUS)) - { - /* - * This is an SMBus read. We must create a buffer to hold the data - * and directly access the region handler. - */ - BufferDesc = AcpiUtCreateBufferObject (ACPI_SMBUS_BUFFER_SIZE); - if (!BufferDesc) - { - return_ACPI_STATUS (AE_NO_MEMORY); - } - - /* Lock entire transaction if requested */ - - AcpiExAcquireGlobalLock (ObjDesc->CommonField.FieldFlags); - - /* - * Perform the read. - * Note: Smbus protocol value is passed in upper 16-bits of Function - */ - Status = AcpiExAccessRegion (ObjDesc, 0, - ACPI_CAST_PTR (ACPI_INTEGER, BufferDesc->Buffer.Pointer), - ACPI_READ | (ObjDesc->Field.Attribute << 16)); - AcpiExReleaseGlobalLock (ObjDesc->CommonField.FieldFlags); - goto Exit; - } - - /* - * Allocate a buffer for the contents of the field. - * - * If the field is larger than the size of an ACPI_INTEGER, create - * a BUFFER to hold it. Otherwise, use an INTEGER. This allows - * the use of arithmetic operators on the returned value if the - * field size is equal or smaller than an Integer. - * - * Note: Field.length is in bits. - */ - Length = (ACPI_SIZE) ACPI_ROUND_BITS_UP_TO_BYTES (ObjDesc->Field.BitLength); - if (Length > AcpiGbl_IntegerByteWidth) - { - /* Field is too large for an Integer, create a Buffer instead */ - - BufferDesc = AcpiUtCreateBufferObject (Length); - if (!BufferDesc) - { - return_ACPI_STATUS (AE_NO_MEMORY); - } - Buffer = BufferDesc->Buffer.Pointer; - } - else - { - /* Field will fit within an Integer (normal case) */ - - BufferDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); - if (!BufferDesc) - { - return_ACPI_STATUS (AE_NO_MEMORY); - } - - Length = AcpiGbl_IntegerByteWidth; - BufferDesc->Integer.Value = 0; - Buffer = &BufferDesc->Integer.Value; - } - - ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, - "FieldRead [TO]: Obj %p, Type %X, Buf %p, ByteLen %X\n", - ObjDesc, ACPI_GET_OBJECT_TYPE (ObjDesc), Buffer, (UINT32) Length)); - ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, - "FieldRead [FROM]: BitLen %X, BitOff %X, ByteOff %X\n", - ObjDesc->CommonField.BitLength, - ObjDesc->CommonField.StartFieldBitOffset, - ObjDesc->CommonField.BaseByteOffset)); - - /* Lock entire transaction if requested */ - - AcpiExAcquireGlobalLock (ObjDesc->CommonField.FieldFlags); - - /* Read from the field */ - - Status = AcpiExExtractFromField (ObjDesc, Buffer, (UINT32) Length); - AcpiExReleaseGlobalLock (ObjDesc->CommonField.FieldFlags); - - -Exit: - if (ACPI_FAILURE (Status)) - { - AcpiUtRemoveReference (BufferDesc); - } - else - { - *RetBufferDesc = BufferDesc; - } - - return_ACPI_STATUS (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiExWriteDataToField - * - * PARAMETERS: SourceDesc - Contains data to write - * ObjDesc - The named field - * ResultDesc - Where the return value is returned, if any - * - * RETURN: Status - * - * DESCRIPTION: Write to a named field - * - ******************************************************************************/ - -ACPI_STATUS -AcpiExWriteDataToField ( - ACPI_OPERAND_OBJECT *SourceDesc, - ACPI_OPERAND_OBJECT *ObjDesc, - ACPI_OPERAND_OBJECT **ResultDesc) -{ - ACPI_STATUS Status; - UINT32 Length; - UINT32 RequiredLength; - void *Buffer; - void *NewBuffer; - ACPI_OPERAND_OBJECT *BufferDesc; - - - ACPI_FUNCTION_TRACE_PTR (ExWriteDataToField, ObjDesc); - - - /* Parameter validation */ - - if (!SourceDesc || !ObjDesc) - { - return_ACPI_STATUS (AE_AML_NO_OPERAND); - } - - if (ACPI_GET_OBJECT_TYPE (ObjDesc) == ACPI_TYPE_BUFFER_FIELD) - { - /* - * If the BufferField arguments have not been previously evaluated, - * evaluate them now and save the results. - */ - if (!(ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)) - { - Status = AcpiDsGetBufferFieldArguments (ObjDesc); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - } - } - else if ((ACPI_GET_OBJECT_TYPE (ObjDesc) == ACPI_TYPE_LOCAL_REGION_FIELD) && - (ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_SMBUS)) - { - /* - * This is an SMBus write. We will bypass the entire field mechanism - * and handoff the buffer directly to the handler. - * - * Source must be a buffer of sufficient size (ACPI_SMBUS_BUFFER_SIZE). - */ - if (ACPI_GET_OBJECT_TYPE (SourceDesc) != ACPI_TYPE_BUFFER) - { - ACPI_ERROR ((AE_INFO, "SMBus write requires Buffer, found type %s", - AcpiUtGetObjectTypeName (SourceDesc))); - - return_ACPI_STATUS (AE_AML_OPERAND_TYPE); - } - - if (SourceDesc->Buffer.Length < ACPI_SMBUS_BUFFER_SIZE) - { - ACPI_ERROR ((AE_INFO, - "SMBus write requires Buffer of length %X, found length %X", - ACPI_SMBUS_BUFFER_SIZE, SourceDesc->Buffer.Length)); - - return_ACPI_STATUS (AE_AML_BUFFER_LIMIT); - } - - BufferDesc = AcpiUtCreateBufferObject (ACPI_SMBUS_BUFFER_SIZE); - if (!BufferDesc) - { - return_ACPI_STATUS (AE_NO_MEMORY); - } - - Buffer = BufferDesc->Buffer.Pointer; - ACPI_MEMCPY (Buffer, SourceDesc->Buffer.Pointer, - ACPI_SMBUS_BUFFER_SIZE); - - /* Lock entire transaction if requested */ - - AcpiExAcquireGlobalLock (ObjDesc->CommonField.FieldFlags); - - /* - * Perform the write (returns status and perhaps data in the - * same buffer) - * Note: SMBus protocol type is passed in upper 16-bits of Function. - */ - Status = AcpiExAccessRegion (ObjDesc, 0, - (ACPI_INTEGER *) Buffer, - ACPI_WRITE | (ObjDesc->Field.Attribute << 16)); - AcpiExReleaseGlobalLock (ObjDesc->CommonField.FieldFlags); - - *ResultDesc = BufferDesc; - return_ACPI_STATUS (Status); - } - - /* Get a pointer to the data to be written */ - - switch (ACPI_GET_OBJECT_TYPE (SourceDesc)) - { - case ACPI_TYPE_INTEGER: - Buffer = &SourceDesc->Integer.Value; - Length = sizeof (SourceDesc->Integer.Value); - break; - - case ACPI_TYPE_BUFFER: - Buffer = SourceDesc->Buffer.Pointer; - Length = SourceDesc->Buffer.Length; - break; - - case ACPI_TYPE_STRING: - Buffer = SourceDesc->String.Pointer; - Length = SourceDesc->String.Length; - break; - - default: - return_ACPI_STATUS (AE_AML_OPERAND_TYPE); - } - - /* - * We must have a buffer that is at least as long as the field - * we are writing to. This is because individual fields are - * indivisible and partial writes are not supported -- as per - * the ACPI specification. - */ - NewBuffer = NULL; - RequiredLength = ACPI_ROUND_BITS_UP_TO_BYTES ( - ObjDesc->CommonField.BitLength); - - if (Length < RequiredLength) - { - /* We need to create a new buffer */ - - NewBuffer = ACPI_ALLOCATE_ZEROED (RequiredLength); - if (!NewBuffer) - { - return_ACPI_STATUS (AE_NO_MEMORY); - } - - /* - * Copy the original data to the new buffer, starting - * at Byte zero. All unused (upper) bytes of the - * buffer will be 0. - */ - ACPI_MEMCPY ((char *) NewBuffer, (char *) Buffer, Length); - Buffer = NewBuffer; - Length = RequiredLength; - } - - ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, - "FieldWrite [FROM]: Obj %p (%s:%X), Buf %p, ByteLen %X\n", - SourceDesc, AcpiUtGetTypeName (ACPI_GET_OBJECT_TYPE (SourceDesc)), - ACPI_GET_OBJECT_TYPE (SourceDesc), Buffer, Length)); - - ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, - "FieldWrite [TO]: Obj %p (%s:%X), BitLen %X, BitOff %X, ByteOff %X\n", - ObjDesc, AcpiUtGetTypeName (ACPI_GET_OBJECT_TYPE (ObjDesc)), - ACPI_GET_OBJECT_TYPE (ObjDesc), - ObjDesc->CommonField.BitLength, - ObjDesc->CommonField.StartFieldBitOffset, - ObjDesc->CommonField.BaseByteOffset)); - - /* Lock entire transaction if requested */ - - AcpiExAcquireGlobalLock (ObjDesc->CommonField.FieldFlags); - - /* Write to the field */ - - Status = AcpiExInsertIntoField (ObjDesc, Buffer, Length); - AcpiExReleaseGlobalLock (ObjDesc->CommonField.FieldFlags); - - /* Free temporary buffer if we used one */ - - if (NewBuffer) - { - ACPI_FREE (NewBuffer); - } - - return_ACPI_STATUS (Status); -} - - |
