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Diffstat (limited to 'sys/contrib/dev/acpica/exstore.c')
| -rw-r--r-- | sys/contrib/dev/acpica/exstore.c | 531 |
1 files changed, 531 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/exstore.c b/sys/contrib/dev/acpica/exstore.c new file mode 100644 index 0000000..976ecc7 --- /dev/null +++ b/sys/contrib/dev/acpica/exstore.c @@ -0,0 +1,531 @@ + +/****************************************************************************** + * + * Module Name: amstore - AML Interpreter object store support + * $Revision: 116 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 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 __AMSTORE_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 ("amstore") + + +/******************************************************************************* + * + * FUNCTION: AcpiAmlExecStore + * + * PARAMETERS: *ValDesc - Value to be stored + * *DestDesc - Where to store it 0 Must be (ACPI_HANDLE) + * or an ACPI_OPERAND_OBJECT of type + * Reference; if the latter the descriptor + * will be either reused or deleted. + * + * RETURN: Status + * + * DESCRIPTION: Store the value described by ValDesc into the location + * described by DestDesc. Called by various interpreter + * functions to store the result of an operation into + * the destination operand. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiAmlExecStore ( + ACPI_OPERAND_OBJECT *ValDesc, + ACPI_OPERAND_OBJECT *DestDesc, + ACPI_WALK_STATE *WalkState) +{ + ACPI_STATUS Status = AE_OK; + ACPI_OPERAND_OBJECT *DeleteDestDesc = NULL; + ACPI_OPERAND_OBJECT *TmpDesc; + ACPI_NAMESPACE_NODE *Node = NULL; + UINT8 Value = 0; + UINT32 Length; + UINT32 i; + + + FUNCTION_TRACE ("AmlExecStore"); + + DEBUG_PRINT (ACPI_INFO, ("entered AcpiAmlExecStore: Val=%p, Dest=%p\n", + ValDesc, DestDesc)); + + + /* Validate parameters */ + + if (!ValDesc || !DestDesc) + { + DEBUG_PRINT (ACPI_ERROR, + ("AmlExecStore: Internal error - null pointer\n")); + return_ACPI_STATUS (AE_AML_NO_OPERAND); + } + + /* Examine the datatype of the DestDesc */ + + if (VALID_DESCRIPTOR_TYPE (DestDesc, ACPI_DESC_TYPE_NAMED)) + { + /* Dest is an ACPI_HANDLE, create a new object */ + + Node = (ACPI_NAMESPACE_NODE *) DestDesc; + DestDesc = AcpiCmCreateInternalObject (INTERNAL_TYPE_REFERENCE); + if (!DestDesc) + { + /* Allocation failure */ + + return_ACPI_STATUS (AE_NO_MEMORY); + } + + /* Build a new Reference wrapper around the handle */ + + DestDesc->Reference.OpCode = AML_NAME_OP; + DestDesc->Reference.Object = Node; + } + + else + { + DEBUG_PRINT (ACPI_INFO, + ("AmlExecStore: Dest is object (not handle) - may be deleted!\n")); + } + + /* Destination object must be of type Reference */ + + if (DestDesc->Common.Type != INTERNAL_TYPE_REFERENCE) + { + /* Destination is not an Reference */ + + DEBUG_PRINT (ACPI_ERROR, + ("AmlExecStore: Destination is not an Reference [%p]\n", DestDesc)); + + DUMP_STACK_ENTRY (ValDesc); + DUMP_STACK_ENTRY (DestDesc); + DUMP_OPERANDS (&DestDesc, IMODE_EXECUTE, "AmlExecStore", + 2, "target not Reference"); + + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + + /* Examine the Reference opcode */ + + switch (DestDesc->Reference.OpCode) + { + + case AML_NAME_OP: + + /* + * Storing into a Name + */ + DeleteDestDesc = DestDesc; + Status = AcpiAmlStoreObjectToNode (ValDesc, DestDesc->Reference.Object, + WalkState); + + break; /* Case NameOp */ + + + case AML_INDEX_OP: + + DeleteDestDesc = DestDesc; + + /* + * Valid source value and destination reference pointer. + * + * ACPI Specification 1.0B section 15.2.3.4.2.13: + * Destination should point to either a buffer or a package + */ + + /* + * Actually, storing to a package is not so simple. The source must be + * evaluated and converted to the type of the destination and then the + * source is copied into the destination - we can't just point to the + * source object. + */ + if (DestDesc->Reference.TargetType == ACPI_TYPE_PACKAGE) + { + /* + * The object at *(DestDesc->Reference.Where) is the + * element within the package that is to be modified. + */ + TmpDesc = *(DestDesc->Reference.Where); + if (TmpDesc) + { + /* + * If the Destination element is a package, we will delete + * that object and construct a new one. + * + * TBD: [Investigate] Should both the src and dest be required + * to be packages? + * && (ValDesc->Common.Type == ACPI_TYPE_PACKAGE) + */ + if (TmpDesc->Common.Type == ACPI_TYPE_PACKAGE) + { + /* + * Take away the reference for being part of a package and + * delete + */ + AcpiCmRemoveReference (TmpDesc); + AcpiCmRemoveReference (TmpDesc); + + TmpDesc = NULL; + } + } + + if (!TmpDesc) + { + /* + * If the TmpDesc is NULL, that means an uninitialized package + * has been used as a destination, therefore, we must create + * the destination element to match the type of the source + * element NOTE: ValDesc can be of any type. + */ + TmpDesc = AcpiCmCreateInternalObject (ValDesc->Common.Type); + if (!TmpDesc) + { + Status = AE_NO_MEMORY; + goto Cleanup; + } + + /* + * If the source is a package, copy the source to the new dest + */ + if (ACPI_TYPE_PACKAGE == TmpDesc->Common.Type) + { + Status = AcpiAmlBuildCopyInternalPackageObject ( + ValDesc, TmpDesc, WalkState); + if (ACPI_FAILURE (Status)) + { + AcpiCmRemoveReference (TmpDesc); + TmpDesc = NULL; + goto Cleanup; + } + } + + /* + * Install the new descriptor into the package and add a + * reference to the newly created descriptor for now being + * part of the parent package + */ + + *(DestDesc->Reference.Where) = TmpDesc; + AcpiCmAddReference (TmpDesc); + } + + if (ACPI_TYPE_PACKAGE != TmpDesc->Common.Type) + { + /* + * The destination element is not a package, so we need to + * convert the contents of the source (ValDesc) and copy into + * the destination (TmpDesc) + */ + Status = AcpiAmlStoreObjectToObject (ValDesc, TmpDesc, + WalkState); + if (ACPI_FAILURE (Status)) + { + /* + * An error occurrered when copying the internal object + * so delete the reference. + */ + DEBUG_PRINT (ACPI_ERROR, + ("AmlExecStore/Index: Unable to copy the internal object\n")); + Status = AE_AML_OPERAND_TYPE; + } + } + + break; + } + + /* + * Check that the destination is a Buffer Field type + */ + if (DestDesc->Reference.TargetType != ACPI_TYPE_BUFFER_FIELD) + { + Status = AE_AML_OPERAND_TYPE; + break; + } + + /* + * Storing into a buffer at a location defined by an Index. + * + * Each 8-bit element of the source object is written to the + * 8-bit Buffer Field of the Index destination object. + */ + + /* + * Set the TmpDesc to the destination object and type check. + */ + TmpDesc = DestDesc->Reference.Object; + + if (TmpDesc->Common.Type != ACPI_TYPE_BUFFER) + { + Status = AE_AML_OPERAND_TYPE; + break; + } + + /* + * The assignment of the individual elements will be slightly + * different for each source type. + */ + + switch (ValDesc->Common.Type) + { + /* + * If the type is Integer, the Length is 4. + * This loop to assign each of the elements is somewhat + * backward because of the Big Endian-ness of IA-64 + */ + case ACPI_TYPE_NUMBER: + Length = 4; + for (i = Length; i != 0; i--) + { + Value = (UINT8)(ValDesc->Number.Value >> (MUL_8 (i - 1))); + TmpDesc->Buffer.Pointer[DestDesc->Reference.Offset] = Value; + } + break; + + /* + * If the type is Buffer, the Length is in the structure. + * Just loop through the elements and assign each one in turn. + */ + case ACPI_TYPE_BUFFER: + Length = ValDesc->Buffer.Length; + for (i = 0; i < Length; i++) + { + Value = *(ValDesc->Buffer.Pointer + i); + TmpDesc->Buffer.Pointer[DestDesc->Reference.Offset] = Value; + } + break; + + /* + * If the type is String, the Length is in the structure. + * Just loop through the elements and assign each one in turn. + */ + case ACPI_TYPE_STRING: + Length = ValDesc->String.Length; + for (i = 0; i < Length; i++) + { + Value = *(ValDesc->String.Pointer + i); + TmpDesc->Buffer.Pointer[DestDesc->Reference.Offset] = Value; + } + break; + + /* + * If source is not a valid type so return an error. + */ + default: + DEBUG_PRINT (ACPI_ERROR, + ("AmlExecStore/Index: Source must be Number/Buffer/String type, not 0x%x\n", + ValDesc->Common.Type)); + Status = AE_AML_OPERAND_TYPE; + break; + } + + /* + * If we had an error, break out of this case statement. + */ + if (ACPI_FAILURE (Status)) + { + break; + } + + /* + * Set the return pointer + */ + DestDesc = TmpDesc; + + break; + + case AML_ZERO_OP: + case AML_ONE_OP: + case AML_ONES_OP: + + /* + * Storing to a constant is a no-op -- see ACPI Specification + * Delete the result descriptor. + */ + + DeleteDestDesc = DestDesc; + break; + + + case AML_LOCAL_OP: + + Status = AcpiDsMethodDataSetValue (MTH_TYPE_LOCAL, + (DestDesc->Reference.Offset), ValDesc, WalkState); + DeleteDestDesc = DestDesc; + break; + + + case AML_ARG_OP: + + Status = AcpiDsMethodDataSetValue (MTH_TYPE_ARG, + (DestDesc->Reference.Offset), ValDesc, WalkState); + DeleteDestDesc = DestDesc; + break; + + + case AML_DEBUG_OP: + + /* + * Storing to the Debug object causes the value stored to be + * displayed and otherwise has no effect -- see ACPI Specification + */ + DEBUG_PRINT (ACPI_INFO, ("**** Write to Debug Object: ****: \n")); + if (ValDesc->Common.Type == ACPI_TYPE_STRING) + { + DEBUG_PRINT (ACPI_INFO, ("%s\n", ValDesc->String.Pointer)); + } + else + { + DUMP_STACK_ENTRY (ValDesc); + } + + DeleteDestDesc = DestDesc; + break; + + + default: + + DEBUG_PRINT (ACPI_ERROR, + ("AmlExecStore: Internal error - Unknown Reference subtype %02x\n", + DestDesc->Reference.OpCode)); + + /* TBD: [Restructure] use object dump routine !! */ + + DUMP_BUFFER (DestDesc, sizeof (ACPI_OPERAND_OBJECT)); + + DeleteDestDesc = DestDesc; + Status = AE_AML_INTERNAL; + + } /* switch(DestDesc->Reference.OpCode) */ + + +Cleanup: + + /* Cleanup and exit*/ + + if (DeleteDestDesc) + { + AcpiCmRemoveReference (DeleteDestDesc); + } + + return_ACPI_STATUS (Status); +} + + |
