diff options
Diffstat (limited to 'sys/contrib/dev/acpica/exstorob.c')
| -rw-r--r-- | sys/contrib/dev/acpica/exstorob.c | 442 |
1 files changed, 442 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/exstorob.c b/sys/contrib/dev/acpica/exstorob.c new file mode 100644 index 0000000..205fdad --- /dev/null +++ b/sys/contrib/dev/acpica/exstorob.c @@ -0,0 +1,442 @@ + +/****************************************************************************** + * + * Module Name: amstorob - AML Interpreter object store support, store to object + * $Revision: 16 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 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 __AMSTOROB_C__ + +#include "acpi.h" +#include "acparser.h" +#include "acdispat.h" +#include "acinterp.h" +#include "amlcode.h" +#include "acnamesp.h" +#include "actables.h" + + +#define _COMPONENT INTERPRETER + MODULE_NAME ("amstorob") + + +/******************************************************************************* + * + * FUNCTION: AcpiAmlStoreObjectToObject + * + * PARAMETERS: *ValDesc - Value to be stored + * *DestDesc - Object to receive the value + * + * RETURN: Status + * + * DESCRIPTION: Store an object to another object. + * + * The Assignment of an object to another (not named) object + * is handled here. + * The val passed in will replace the current value (if any) + * with the input value. + * + * When storing into an object the data is converted to the + * target object type then stored in the object. This means + * that the target object type (for an initialized target) will + * not be changed by a store operation. + * + * This module allows destination types of Number, String, + * and Buffer. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiAmlStoreObjectToObject ( + ACPI_OPERAND_OBJECT *ValDesc, + ACPI_OPERAND_OBJECT *DestDesc, + ACPI_WALK_STATE *WalkState) +{ + ACPI_STATUS Status = AE_OK; + UINT8 *Buffer = NULL; + UINT32 Length = 0; + OBJECT_TYPE_INTERNAL DestinationType = DestDesc->Common.Type; + + + FUNCTION_TRACE ("AmlStoreObjectToObject"); + + DEBUG_PRINT (ACPI_INFO, + ("entered AcpiAmlStoreObjectToObject: Dest=%p, Val=%p\n", + DestDesc, ValDesc)); + + /* + * Assuming the parameters are valid!!! + */ + ACPI_ASSERT((DestDesc) && (ValDesc)); + + DEBUG_PRINT (ACPI_INFO, ("AmlStoreObjectToObject: Storing %s into %s\n", + AcpiCmGetTypeName (ValDesc->Common.Type), + AcpiCmGetTypeName (DestDesc->Common.Type))); + + /* + * First ensure we have a value that can be stored in the target + */ + switch (DestinationType) + { + /* Type of Name's existing value */ + + case ACPI_TYPE_NUMBER: + + /* + * These cases all require only number values or values that + * can be converted to numbers. + * + * If value is not a Number, try to resolve it to one. + */ + + if (ValDesc->Common.Type != ACPI_TYPE_NUMBER) + { + /* + * Initially not a number, convert + */ + Status = AcpiAmlResolveToValue (&ValDesc, WalkState); + if (ACPI_SUCCESS (Status) && + (ValDesc->Common.Type != ACPI_TYPE_NUMBER)) + { + /* + * Conversion successful but still not a number + */ + DEBUG_PRINT (ACPI_ERROR, + ("AmlStoreObjectToObject: Value assigned to %s must be Number, not %s\n", + AcpiCmGetTypeName (DestinationType), + AcpiCmGetTypeName (ValDesc->Common.Type))); + Status = AE_AML_OPERAND_TYPE; + } + } + + break; + + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: + + /* + * Storing into a Field in a region or into a buffer or into + * a string all is essentially the same. + * + * If value is not a valid type, try to resolve it to one. + */ + + if ((ValDesc->Common.Type != ACPI_TYPE_NUMBER) && + (ValDesc->Common.Type != ACPI_TYPE_BUFFER) && + (ValDesc->Common.Type != ACPI_TYPE_STRING)) + { + /* + * Initially not a valid type, convert + */ + Status = AcpiAmlResolveToValue (&ValDesc, WalkState); + if (ACPI_SUCCESS (Status) && + (ValDesc->Common.Type != ACPI_TYPE_NUMBER) && + (ValDesc->Common.Type != ACPI_TYPE_BUFFER) && + (ValDesc->Common.Type != ACPI_TYPE_STRING)) + { + /* + * Conversion successful but still not a valid type + */ + DEBUG_PRINT (ACPI_ERROR, + ("AmlStoreObjectToObject: Assign wrong type %s to %s (must be type Num/Str/Buf)\n", + AcpiCmGetTypeName (ValDesc->Common.Type), + AcpiCmGetTypeName (DestinationType))); + Status = AE_AML_OPERAND_TYPE; + } + } + break; + + + default: + + /* + * TBD: [Unhandled] What other combinations must be implemented? + */ + Status = AE_NOT_IMPLEMENTED; + break; + } + + /* Exit now if failure above */ + + if (ACPI_FAILURE (Status)) + { + goto CleanUpAndBailOut; + } + + /* + * AcpiEverything is ready to execute now, We have + * a value we can handle, just perform the update + */ + + switch (DestinationType) + { + + case ACPI_TYPE_STRING: + + /* + * Perform the update + */ + + switch (ValDesc->Common.Type) + { + case ACPI_TYPE_NUMBER: + Buffer = (UINT8 *) &ValDesc->Number.Value; + Length = sizeof (ValDesc->Number.Value); + break; + + case ACPI_TYPE_BUFFER: + Buffer = (UINT8 *) ValDesc->Buffer.Pointer; + Length = ValDesc->Buffer.Length; + break; + + case ACPI_TYPE_STRING: + Buffer = (UINT8 *) ValDesc->String.Pointer; + Length = ValDesc->String.Length; + break; + } + + /* + * Setting a string value replaces the old string + */ + + if (Length < DestDesc->String.Length) + { + /* + * Zero fill, not willing to do pointer arithmetic for + * architecture independence. Just clear the whole thing + */ + MEMSET(DestDesc->String.Pointer, 0, DestDesc->String.Length); + MEMCPY(DestDesc->String.Pointer, Buffer, Length); + } + else + { + /* + * Free the current buffer, then allocate a buffer + * large enough to hold the value + */ + if ( DestDesc->String.Pointer && + !AcpiTbSystemTablePointer (DestDesc->String.Pointer)) + { + /* + * Only free if not a pointer into the DSDT + */ + + AcpiCmFree(DestDesc->String.Pointer); + } + + DestDesc->String.Pointer = AcpiCmAllocate (Length + 1); + DestDesc->String.Length = Length; + + if (!DestDesc->String.Pointer) + { + Status = AE_NO_MEMORY; + goto CleanUpAndBailOut; + } + + MEMCPY(DestDesc->String.Pointer, Buffer, Length); + } + break; + + + case ACPI_TYPE_BUFFER: + + /* + * Perform the update to the buffer + */ + + switch (ValDesc->Common.Type) + { + case ACPI_TYPE_NUMBER: + Buffer = (UINT8 *) &ValDesc->Number.Value; + Length = sizeof (ValDesc->Number.Value); + break; + + case ACPI_TYPE_BUFFER: + Buffer = (UINT8 *) ValDesc->Buffer.Pointer; + Length = ValDesc->Buffer.Length; + break; + + case ACPI_TYPE_STRING: + Buffer = (UINT8 *) ValDesc->String.Pointer; + Length = ValDesc->String.Length; + break; + } + + /* + * If the buffer is uninitialized, + * memory needs to be allocated for the copy. + */ + if(0 == DestDesc->Buffer.Length) + { + DestDesc->Buffer.Pointer = AcpiCmCallocate(Length); + DestDesc->Buffer.Length = Length; + + if (!DestDesc->Buffer.Pointer) + { + Status = AE_NO_MEMORY; + goto CleanUpAndBailOut; + } + } + + /* + * Buffer is a static allocation, + * only place what will fit in the buffer. + */ + if (Length <= DestDesc->Buffer.Length) + { + /* + * Zero fill first, not willing to do pointer arithmetic for + * architecture independence. Just clear the whole thing + */ + MEMSET(DestDesc->Buffer.Pointer, 0, DestDesc->Buffer.Length); + MEMCPY(DestDesc->Buffer.Pointer, Buffer, Length); + } + else + { + /* + * truncate, copy only what will fit + */ + MEMCPY(DestDesc->Buffer.Pointer, Buffer, DestDesc->Buffer.Length); + DEBUG_PRINT (ACPI_INFO, + ("AmlStoreObjectToObject: Truncating src buffer from %d to %d\n", + Length, DestDesc->Buffer.Length)); + } + break; + + case ACPI_TYPE_NUMBER: + + DestDesc->Number.Value = ValDesc->Number.Value; + break; + + default: + + /* + * All other types than Alias and the various Fields come here. + * Store ValDesc as the new value of the Name, and set + * the Name's type to that of the value being stored in it. + * ValDesc reference count is incremented by AttachObject. + */ + + DEBUG_PRINT (ACPI_WARN, + ("AmlStoreObjectToObject: Store into %s not implemented\n", + AcpiCmGetTypeName (DestDesc->Common.Type))); + + Status = AE_NOT_IMPLEMENTED; + break; + } + +CleanUpAndBailOut: + + return_ACPI_STATUS (Status); +} + |
