diff options
Diffstat (limited to 'sys/contrib/dev/acpica/exresnte.c')
| -rw-r--r-- | sys/contrib/dev/acpica/exresnte.c | 377 |
1 files changed, 377 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/exresnte.c b/sys/contrib/dev/acpica/exresnte.c new file mode 100644 index 0000000..f5f2e14 --- /dev/null +++ b/sys/contrib/dev/acpica/exresnte.c @@ -0,0 +1,377 @@ + +/****************************************************************************** + * + * Module Name: exresnte - AML Interpreter object resolution + * $Revision: 1.75 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 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 __EXRESNTE_C__ + +#include <contrib/dev/acpica/acpi.h> +#include <contrib/dev/acpica/acdispat.h> +#include <contrib/dev/acpica/acinterp.h> +#include <contrib/dev/acpica/acnamesp.h> +#include <contrib/dev/acpica/acparser.h> +#include <contrib/dev/acpica/amlcode.h> + + +#define _COMPONENT ACPI_EXECUTER + ACPI_MODULE_NAME ("exresnte") + + +/******************************************************************************* + * + * FUNCTION: AcpiExResolveNodeToValue + * + * PARAMETERS: ObjectPtr - Pointer to a location that contains + * a pointer to a NS node, and will receive a + * pointer to the resolved object. + * WalkState - Current state. Valid only if executing AML + * code. NULL if simply resolving an object + * + * RETURN: Status + * + * DESCRIPTION: Resolve a Namespace node to a valued object + * + * Note: for some of the data types, the pointer attached to the Node + * can be either a pointer to an actual internal object or a pointer into the + * AML stream itself. These types are currently: + * + * ACPI_TYPE_INTEGER + * ACPI_TYPE_STRING + * ACPI_TYPE_BUFFER + * ACPI_TYPE_MUTEX + * ACPI_TYPE_PACKAGE + * + ******************************************************************************/ + +ACPI_STATUS +AcpiExResolveNodeToValue ( + ACPI_NAMESPACE_NODE **ObjectPtr, + ACPI_WALK_STATE *WalkState) + +{ + ACPI_STATUS Status = AE_OK; + ACPI_OPERAND_OBJECT *SourceDesc; + ACPI_OPERAND_OBJECT *ObjDesc = NULL; + ACPI_NAMESPACE_NODE *Node; + ACPI_OBJECT_TYPE EntryType; + + + ACPI_FUNCTION_TRACE (ExResolveNodeToValue); + + + /* + * The stack pointer points to a ACPI_NAMESPACE_NODE (Node). Get the + * object that is attached to the Node. + */ + Node = *ObjectPtr; + SourceDesc = AcpiNsGetAttachedObject (Node); + EntryType = AcpiNsGetType ((ACPI_HANDLE) Node); + + ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Entry=%p SourceDesc=%p [%s]\n", + Node, SourceDesc, AcpiUtGetTypeName (EntryType))); + + if ((EntryType == ACPI_TYPE_LOCAL_ALIAS) || + (EntryType == ACPI_TYPE_LOCAL_METHOD_ALIAS)) + { + /* There is always exactly one level of indirection */ + + Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Node->Object); + SourceDesc = AcpiNsGetAttachedObject (Node); + EntryType = AcpiNsGetType ((ACPI_HANDLE) Node); + *ObjectPtr = Node; + } + + /* + * Several object types require no further processing: + * 1) Device/Thermal objects don't have a "real" subobject, return the Node + * 2) Method locals and arguments have a pseudo-Node + */ + if ((EntryType == ACPI_TYPE_DEVICE) || + (EntryType == ACPI_TYPE_THERMAL) || + (Node->Flags & (ANOBJ_METHOD_ARG | ANOBJ_METHOD_LOCAL))) + { + return_ACPI_STATUS (AE_OK); + } + + if (!SourceDesc) + { + ACPI_ERROR ((AE_INFO, "No object attached to node %p", + Node)); + return_ACPI_STATUS (AE_AML_NO_OPERAND); + } + + /* + * Action is based on the type of the Node, which indicates the type + * of the attached object or pointer + */ + switch (EntryType) + { + case ACPI_TYPE_PACKAGE: + + if (ACPI_GET_OBJECT_TYPE (SourceDesc) != ACPI_TYPE_PACKAGE) + { + ACPI_ERROR ((AE_INFO, "Object not a Package, type %s", + AcpiUtGetObjectTypeName (SourceDesc))); + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + + Status = AcpiDsGetPackageArguments (SourceDesc); + if (ACPI_SUCCESS (Status)) + { + /* Return an additional reference to the object */ + + ObjDesc = SourceDesc; + AcpiUtAddReference (ObjDesc); + } + break; + + + case ACPI_TYPE_BUFFER: + + if (ACPI_GET_OBJECT_TYPE (SourceDesc) != ACPI_TYPE_BUFFER) + { + ACPI_ERROR ((AE_INFO, "Object not a Buffer, type %s", + AcpiUtGetObjectTypeName (SourceDesc))); + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + + Status = AcpiDsGetBufferArguments (SourceDesc); + if (ACPI_SUCCESS (Status)) + { + /* Return an additional reference to the object */ + + ObjDesc = SourceDesc; + AcpiUtAddReference (ObjDesc); + } + break; + + + case ACPI_TYPE_STRING: + + if (ACPI_GET_OBJECT_TYPE (SourceDesc) != ACPI_TYPE_STRING) + { + ACPI_ERROR ((AE_INFO, "Object not a String, type %s", + AcpiUtGetObjectTypeName (SourceDesc))); + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + + /* Return an additional reference to the object */ + + ObjDesc = SourceDesc; + AcpiUtAddReference (ObjDesc); + break; + + + case ACPI_TYPE_INTEGER: + + if (ACPI_GET_OBJECT_TYPE (SourceDesc) != ACPI_TYPE_INTEGER) + { + ACPI_ERROR ((AE_INFO, "Object not a Integer, type %s", + AcpiUtGetObjectTypeName (SourceDesc))); + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + + /* Return an additional reference to the object */ + + ObjDesc = SourceDesc; + AcpiUtAddReference (ObjDesc); + break; + + + case ACPI_TYPE_BUFFER_FIELD: + case ACPI_TYPE_LOCAL_REGION_FIELD: + case ACPI_TYPE_LOCAL_BANK_FIELD: + case ACPI_TYPE_LOCAL_INDEX_FIELD: + + ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, + "FieldRead Node=%p SourceDesc=%p Type=%X\n", + Node, SourceDesc, EntryType)); + + Status = AcpiExReadDataFromField (WalkState, SourceDesc, &ObjDesc); + break; + + /* For these objects, just return the object attached to the Node */ + + case ACPI_TYPE_MUTEX: + case ACPI_TYPE_METHOD: + case ACPI_TYPE_POWER: + case ACPI_TYPE_PROCESSOR: + case ACPI_TYPE_EVENT: + case ACPI_TYPE_REGION: + + /* Return an additional reference to the object */ + + ObjDesc = SourceDesc; + AcpiUtAddReference (ObjDesc); + break; + + /* TYPE_ANY is untyped, and thus there is no object associated with it */ + + case ACPI_TYPE_ANY: + + ACPI_ERROR ((AE_INFO, + "Untyped entry %p, no attached object!", Node)); + + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); /* Cannot be AE_TYPE */ + + + case ACPI_TYPE_LOCAL_REFERENCE: + + switch (SourceDesc->Reference.Opcode) + { + case AML_LOAD_OP: + + /* This is a DdbHandle */ + /* Return an additional reference to the object */ + + case AML_REF_OF_OP: + + ObjDesc = SourceDesc; + AcpiUtAddReference (ObjDesc); + break; + + default: + /* No named references are allowed here */ + + ACPI_ERROR ((AE_INFO, + "Unsupported Reference opcode %X (%s)", + SourceDesc->Reference.Opcode, + AcpiPsGetOpcodeName (SourceDesc->Reference.Opcode))); + + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + break; + + + default: + + /* Default case is for unknown types */ + + ACPI_ERROR ((AE_INFO, + "Node %p - Unknown object type %X", + Node, EntryType)); + + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + + } /* switch (EntryType) */ + + + /* Return the object descriptor */ + + *ObjectPtr = (void *) ObjDesc; + return_ACPI_STATUS (Status); +} + + |
