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Diffstat (limited to 'sys/contrib/dev/acpica/dswload.c')
-rw-r--r-- | sys/contrib/dev/acpica/dswload.c | 1294 |
1 files changed, 1294 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/dswload.c b/sys/contrib/dev/acpica/dswload.c new file mode 100644 index 0000000..7a65942 --- /dev/null +++ b/sys/contrib/dev/acpica/dswload.c @@ -0,0 +1,1294 @@ +/****************************************************************************** + * + * Module Name: dswload - Dispatcher namespace load callbacks + * $Revision: 1.117 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 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 __DSWLOAD_C__ + +#include <contrib/dev/acpica/acpi.h> +#include <contrib/dev/acpica/acparser.h> +#include <contrib/dev/acpica/amlcode.h> +#include <contrib/dev/acpica/acdispat.h> +#include <contrib/dev/acpica/acinterp.h> +#include <contrib/dev/acpica/acnamesp.h> +#include <contrib/dev/acpica/acevents.h> + +#ifdef ACPI_ASL_COMPILER +#include <contrib/dev/acpica/acdisasm.h> +#endif + +#define _COMPONENT ACPI_DISPATCHER + ACPI_MODULE_NAME ("dswload") + + +/******************************************************************************* + * + * FUNCTION: AcpiDsInitCallbacks + * + * PARAMETERS: WalkState - Current state of the parse tree walk + * PassNumber - 1, 2, or 3 + * + * RETURN: Status + * + * DESCRIPTION: Init walk state callbacks + * + ******************************************************************************/ + +ACPI_STATUS +AcpiDsInitCallbacks ( + ACPI_WALK_STATE *WalkState, + UINT32 PassNumber) +{ + + switch (PassNumber) + { + case 1: + WalkState->ParseFlags = ACPI_PARSE_LOAD_PASS1 | + ACPI_PARSE_DELETE_TREE; + WalkState->DescendingCallback = AcpiDsLoad1BeginOp; + WalkState->AscendingCallback = AcpiDsLoad1EndOp; + break; + + case 2: + WalkState->ParseFlags = ACPI_PARSE_LOAD_PASS1 | + ACPI_PARSE_DELETE_TREE; + WalkState->DescendingCallback = AcpiDsLoad2BeginOp; + WalkState->AscendingCallback = AcpiDsLoad2EndOp; + break; + + case 3: +#ifndef ACPI_NO_METHOD_EXECUTION + WalkState->ParseFlags |= ACPI_PARSE_EXECUTE | + ACPI_PARSE_DELETE_TREE; + WalkState->DescendingCallback = AcpiDsExecBeginOp; + WalkState->AscendingCallback = AcpiDsExecEndOp; +#endif + break; + + default: + return (AE_BAD_PARAMETER); + } + + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDsLoad1BeginOp + * + * PARAMETERS: WalkState - Current state of the parse tree walk + * OutOp - Where to return op if a new one is created + * + * RETURN: Status + * + * DESCRIPTION: Descending callback used during the loading of ACPI tables. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiDsLoad1BeginOp ( + ACPI_WALK_STATE *WalkState, + ACPI_PARSE_OBJECT **OutOp) +{ + ACPI_PARSE_OBJECT *Op; + ACPI_NAMESPACE_NODE *Node; + ACPI_STATUS Status; + ACPI_OBJECT_TYPE ObjectType; + char *Path; + UINT32 Flags; + + + ACPI_FUNCTION_TRACE (DsLoad1BeginOp); + + + Op = WalkState->Op; + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState)); + + /* We are only interested in opcodes that have an associated name */ + + if (Op) + { + if (!(WalkState->OpInfo->Flags & AML_NAMED)) + { + *OutOp = Op; + return_ACPI_STATUS (AE_OK); + } + + /* Check if this object has already been installed in the namespace */ + + if (Op->Common.Node) + { + *OutOp = Op; + return_ACPI_STATUS (AE_OK); + } + } + + Path = AcpiPsGetNextNamestring (&WalkState->ParserState); + + /* Map the raw opcode into an internal object type */ + + ObjectType = WalkState->OpInfo->ObjectType; + + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "State=%p Op=%p [%s]\n", WalkState, Op, AcpiUtGetTypeName (ObjectType))); + + switch (WalkState->Opcode) + { + case AML_SCOPE_OP: + + /* + * The target name of the Scope() operator must exist at this point so + * that we can actually open the scope to enter new names underneath it. + * Allow search-to-root for single namesegs. + */ + Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType, + ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, WalkState, &(Node)); +#ifdef ACPI_ASL_COMPILER + if (Status == AE_NOT_FOUND) + { + /* + * Table disassembly: + * Target of Scope() not found. Generate an External for it, and + * insert the name into the namespace. + */ + AcpiDmAddToExternalList (Path, ACPI_TYPE_DEVICE, 0); + Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType, + ACPI_IMODE_LOAD_PASS1, ACPI_NS_SEARCH_PARENT, + WalkState, &Node); + } +#endif + if (ACPI_FAILURE (Status)) + { + ACPI_ERROR_NAMESPACE (Path, Status); + return_ACPI_STATUS (Status); + } + + /* + * Check to make sure that the target is + * one of the opcodes that actually opens a scope + */ + switch (Node->Type) + { + case ACPI_TYPE_ANY: + case ACPI_TYPE_LOCAL_SCOPE: /* Scope */ + case ACPI_TYPE_DEVICE: + case ACPI_TYPE_POWER: + case ACPI_TYPE_PROCESSOR: + case ACPI_TYPE_THERMAL: + + /* These are acceptable types */ + break; + + case ACPI_TYPE_INTEGER: + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: + + /* + * These types we will allow, but we will change the type. This + * enables some existing code of the form: + * + * Name (DEB, 0) + * Scope (DEB) { ... } + * + * Note: silently change the type here. On the second pass, we will report + * a warning + */ + ACPI_DEBUG_PRINT ((ACPI_DB_INFO, + "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)\n", + Path, AcpiUtGetTypeName (Node->Type))); + + Node->Type = ACPI_TYPE_ANY; + WalkState->ScopeInfo->Common.Value = ACPI_TYPE_ANY; + break; + + default: + + /* All other types are an error */ + + ACPI_ERROR ((AE_INFO, + "Invalid type (%s) for target of Scope operator [%4.4s] (Cannot override)", + AcpiUtGetTypeName (Node->Type), Path)); + + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + break; + + + default: + /* + * For all other named opcodes, we will enter the name into + * the namespace. + * + * Setup the search flags. + * Since we are entering a name into the namespace, we do not want to + * enable the search-to-root upsearch. + * + * There are only two conditions where it is acceptable that the name + * already exists: + * 1) the Scope() operator can reopen a scoping object that was + * previously defined (Scope, Method, Device, etc.) + * 2) Whenever we are parsing a deferred opcode (OpRegion, Buffer, + * BufferField, or Package), the name of the object is already + * in the namespace. + */ + if (WalkState->DeferredNode) + { + /* This name is already in the namespace, get the node */ + + Node = WalkState->DeferredNode; + Status = AE_OK; + break; + } + + /* + * If we are executing a method, do not create any namespace objects + * during the load phase, only during execution. + */ + if (WalkState->MethodNode) + { + Node = NULL; + Status = AE_OK; + break; + } + + Flags = ACPI_NS_NO_UPSEARCH; + if ((WalkState->Opcode != AML_SCOPE_OP) && + (!(WalkState->ParseFlags & ACPI_PARSE_DEFERRED_OP))) + { + Flags |= ACPI_NS_ERROR_IF_FOUND; + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[%s] Cannot already exist\n", + AcpiUtGetTypeName (ObjectType))); + } + else + { + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "[%s] Both Find or Create allowed\n", + AcpiUtGetTypeName (ObjectType))); + } + + /* + * Enter the named type into the internal namespace. We enter the name + * as we go downward in the parse tree. Any necessary subobjects that + * involve arguments to the opcode must be created as we go back up the + * parse tree later. + */ + Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType, + ACPI_IMODE_LOAD_PASS1, Flags, WalkState, &Node); + if (ACPI_FAILURE (Status)) + { + if (Status == AE_ALREADY_EXISTS) + { + /* The name already exists in this scope */ + + if (Node->Flags & ANOBJ_IS_EXTERNAL) + { + /* + * Allow one create on an object or segment that was + * previously declared External + */ + Node->Flags &= ~ANOBJ_IS_EXTERNAL; + Node->Type = (UINT8) ObjectType; + + /* Just retyped a node, probably will need to open a scope */ + + if (AcpiNsOpensScope (ObjectType)) + { + Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + } + + Status = AE_OK; + } + } + + if (ACPI_FAILURE (Status)) + { + ACPI_ERROR_NAMESPACE (Path, Status); + return_ACPI_STATUS (Status); + } + } + break; + } + + /* Common exit */ + + if (!Op) + { + /* Create a new op */ + + Op = AcpiPsAllocOp (WalkState->Opcode); + if (!Op) + { + return_ACPI_STATUS (AE_NO_MEMORY); + } + } + + /* Initialize the op */ + +#if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)) + Op->Named.Path = ACPI_CAST_PTR (UINT8, Path); +#endif + + if (Node) + { + /* + * Put the Node in the "op" object that the parser uses, so we + * can get it again quickly when this scope is closed + */ + Op->Common.Node = Node; + Op->Named.Name = Node->Name.Integer; + } + + AcpiPsAppendArg (AcpiPsGetParentScope (&WalkState->ParserState), Op); + *OutOp = Op; + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDsLoad1EndOp + * + * PARAMETERS: WalkState - Current state of the parse tree walk + * + * RETURN: Status + * + * DESCRIPTION: Ascending callback used during the loading of the namespace, + * both control methods and everything else. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiDsLoad1EndOp ( + ACPI_WALK_STATE *WalkState) +{ + ACPI_PARSE_OBJECT *Op; + ACPI_OBJECT_TYPE ObjectType; + ACPI_STATUS Status = AE_OK; + + + ACPI_FUNCTION_TRACE (DsLoad1EndOp); + + + Op = WalkState->Op; + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState)); + + /* We are only interested in opcodes that have an associated name */ + + if (!(WalkState->OpInfo->Flags & (AML_NAMED | AML_FIELD))) + { + return_ACPI_STATUS (AE_OK); + } + + /* Get the object type to determine if we should pop the scope */ + + ObjectType = WalkState->OpInfo->ObjectType; + +#ifndef ACPI_NO_METHOD_EXECUTION + if (WalkState->OpInfo->Flags & AML_FIELD) + { + /* + * If we are executing a method, do not create any namespace objects + * during the load phase, only during execution. + */ + if (!WalkState->MethodNode) + { + if (WalkState->Opcode == AML_FIELD_OP || + WalkState->Opcode == AML_BANK_FIELD_OP || + WalkState->Opcode == AML_INDEX_FIELD_OP) + { + Status = AcpiDsInitFieldObjects (Op, WalkState); + } + } + return_ACPI_STATUS (Status); + } + + /* + * If we are executing a method, do not create any namespace objects + * during the load phase, only during execution. + */ + if (!WalkState->MethodNode) + { + if (Op->Common.AmlOpcode == AML_REGION_OP) + { + Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length, + (ACPI_ADR_SPACE_TYPE) ((Op->Common.Value.Arg)->Common.Value.Integer), + WalkState); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + } + } +#endif + + if (Op->Common.AmlOpcode == AML_NAME_OP) + { + /* For Name opcode, get the object type from the argument */ + + if (Op->Common.Value.Arg) + { + ObjectType = (AcpiPsGetOpcodeInfo ( + (Op->Common.Value.Arg)->Common.AmlOpcode))->ObjectType; + + /* Set node type if we have a namespace node */ + + if (Op->Common.Node) + { + Op->Common.Node->Type = (UINT8) ObjectType; + } + } + } + + /* + * If we are executing a method, do not create any namespace objects + * during the load phase, only during execution. + */ + if (!WalkState->MethodNode) + { + if (Op->Common.AmlOpcode == AML_METHOD_OP) + { + /* + * MethodOp PkgLength NameString MethodFlags TermList + * + * Note: We must create the method node/object pair as soon as we + * see the method declaration. This allows later pass1 parsing + * of invocations of the method (need to know the number of + * arguments.) + */ + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "LOADING-Method: State=%p Op=%p NamedObj=%p\n", + WalkState, Op, Op->Named.Node)); + + if (!AcpiNsGetAttachedObject (Op->Named.Node)) + { + WalkState->Operands[0] = ACPI_CAST_PTR (void, Op->Named.Node); + WalkState->NumOperands = 1; + + Status = AcpiDsCreateOperands (WalkState, Op->Common.Value.Arg); + if (ACPI_SUCCESS (Status)) + { + Status = AcpiExCreateMethod (Op->Named.Data, + Op->Named.Length, WalkState); + } + + WalkState->Operands[0] = NULL; + WalkState->NumOperands = 0; + + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + } + } + } + + /* Pop the scope stack (only if loading a table) */ + + if (!WalkState->MethodNode && + AcpiNsOpensScope (ObjectType)) + { + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s): Popping scope for Op %p\n", + AcpiUtGetTypeName (ObjectType), Op)); + + Status = AcpiDsScopeStackPop (WalkState); + } + + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDsLoad2BeginOp + * + * PARAMETERS: WalkState - Current state of the parse tree walk + * OutOp - Wher to return op if a new one is created + * + * RETURN: Status + * + * DESCRIPTION: Descending callback used during the loading of ACPI tables. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiDsLoad2BeginOp ( + ACPI_WALK_STATE *WalkState, + ACPI_PARSE_OBJECT **OutOp) +{ + ACPI_PARSE_OBJECT *Op; + ACPI_NAMESPACE_NODE *Node; + ACPI_STATUS Status; + ACPI_OBJECT_TYPE ObjectType; + char *BufferPtr; + UINT32 Flags; + + + ACPI_FUNCTION_TRACE (DsLoad2BeginOp); + + + Op = WalkState->Op; + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState)); + + if (Op) + { + if ((WalkState->ControlState) && + (WalkState->ControlState->Common.State == + ACPI_CONTROL_CONDITIONAL_EXECUTING)) + { + /* We are executing a while loop outside of a method */ + + Status = AcpiDsExecBeginOp (WalkState, OutOp); + return_ACPI_STATUS (Status); + } + + /* We only care about Namespace opcodes here */ + + if ((!(WalkState->OpInfo->Flags & AML_NSOPCODE) && + (WalkState->Opcode != AML_INT_NAMEPATH_OP)) || + (!(WalkState->OpInfo->Flags & AML_NAMED))) + { +#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE + if ((WalkState->OpInfo->Class == AML_CLASS_EXECUTE) || + (WalkState->OpInfo->Class == AML_CLASS_CONTROL)) + { + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "Begin/EXEC: %s (fl %8.8X)\n", WalkState->OpInfo->Name, + WalkState->OpInfo->Flags)); + + /* Executing a type1 or type2 opcode outside of a method */ + + Status = AcpiDsExecBeginOp (WalkState, OutOp); + return_ACPI_STATUS (Status); + } +#endif + return_ACPI_STATUS (AE_OK); + } + + /* Get the name we are going to enter or lookup in the namespace */ + + if (WalkState->Opcode == AML_INT_NAMEPATH_OP) + { + /* For Namepath op, get the path string */ + + BufferPtr = Op->Common.Value.String; + if (!BufferPtr) + { + /* No name, just exit */ + + return_ACPI_STATUS (AE_OK); + } + } + else + { + /* Get name from the op */ + + BufferPtr = ACPI_CAST_PTR (char, &Op->Named.Name); + } + } + else + { + /* Get the namestring from the raw AML */ + + BufferPtr = AcpiPsGetNextNamestring (&WalkState->ParserState); + } + + /* Map the opcode into an internal object type */ + + ObjectType = WalkState->OpInfo->ObjectType; + + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "State=%p Op=%p Type=%X\n", WalkState, Op, ObjectType)); + + switch (WalkState->Opcode) + { + case AML_FIELD_OP: + case AML_BANK_FIELD_OP: + case AML_INDEX_FIELD_OP: + + Node = NULL; + Status = AE_OK; + break; + + case AML_INT_NAMEPATH_OP: + /* + * The NamePath is an object reference to an existing object. + * Don't enter the name into the namespace, but look it up + * for use later. + */ + Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType, + ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, + WalkState, &(Node)); + break; + + case AML_SCOPE_OP: + /* + * The Path is an object reference to an existing object. + * Don't enter the name into the namespace, but look it up + * for use later. + */ + Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType, + ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, + WalkState, &(Node)); + if (ACPI_FAILURE (Status)) + { +#ifdef ACPI_ASL_COMPILER + if (Status == AE_NOT_FOUND) + { + Status = AE_OK; + } + else + { + ACPI_ERROR_NAMESPACE (BufferPtr, Status); + } +#else + ACPI_ERROR_NAMESPACE (BufferPtr, Status); +#endif + return_ACPI_STATUS (Status); + } + + /* + * We must check to make sure that the target is + * one of the opcodes that actually opens a scope + */ + switch (Node->Type) + { + case ACPI_TYPE_ANY: + case ACPI_TYPE_LOCAL_SCOPE: /* Scope */ + case ACPI_TYPE_DEVICE: + case ACPI_TYPE_POWER: + case ACPI_TYPE_PROCESSOR: + case ACPI_TYPE_THERMAL: + + /* These are acceptable types */ + break; + + case ACPI_TYPE_INTEGER: + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: + + /* + * These types we will allow, but we will change the type. This + * enables some existing code of the form: + * + * Name (DEB, 0) + * Scope (DEB) { ... } + */ + ACPI_WARNING ((AE_INFO, + "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)", + BufferPtr, AcpiUtGetTypeName (Node->Type))); + + Node->Type = ACPI_TYPE_ANY; + WalkState->ScopeInfo->Common.Value = ACPI_TYPE_ANY; + break; + + default: + + /* All other types are an error */ + + ACPI_ERROR ((AE_INFO, + "Invalid type (%s) for target of Scope operator [%4.4s]", + AcpiUtGetTypeName (Node->Type), BufferPtr)); + + return (AE_AML_OPERAND_TYPE); + } + break; + + default: + + /* All other opcodes */ + + if (Op && Op->Common.Node) + { + /* This op/node was previously entered into the namespace */ + + Node = Op->Common.Node; + + if (AcpiNsOpensScope (ObjectType)) + { + Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + } + + return_ACPI_STATUS (AE_OK); + } + + /* + * Enter the named type into the internal namespace. We enter the name + * as we go downward in the parse tree. Any necessary subobjects that + * involve arguments to the opcode must be created as we go back up the + * parse tree later. + * + * Note: Name may already exist if we are executing a deferred opcode. + */ + if (WalkState->DeferredNode) + { + /* This name is already in the namespace, get the node */ + + Node = WalkState->DeferredNode; + Status = AE_OK; + break; + } + + Flags = ACPI_NS_NO_UPSEARCH; + if (WalkState->PassNumber == ACPI_IMODE_EXECUTE) + { + /* Execution mode, node cannot already exist, node is temporary */ + + Flags |= (ACPI_NS_ERROR_IF_FOUND | ACPI_NS_TEMPORARY); + } + + /* Add new entry or lookup existing entry */ + + Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType, + ACPI_IMODE_LOAD_PASS2, Flags, WalkState, &Node); + break; + } + + if (ACPI_FAILURE (Status)) + { + ACPI_ERROR_NAMESPACE (BufferPtr, Status); + return_ACPI_STATUS (Status); + } + + if (!Op) + { + /* Create a new op */ + + Op = AcpiPsAllocOp (WalkState->Opcode); + if (!Op) + { + return_ACPI_STATUS (AE_NO_MEMORY); + } + + /* Initialize the new op */ + + if (Node) + { + Op->Named.Name = Node->Name.Integer; + } + *OutOp = Op; + } + + /* + * Put the Node in the "op" object that the parser uses, so we + * can get it again quickly when this scope is closed + */ + Op->Common.Node = Node; + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDsLoad2EndOp + * + * PARAMETERS: WalkState - Current state of the parse tree walk + * + * RETURN: Status + * + * DESCRIPTION: Ascending callback used during the loading of the namespace, + * both control methods and everything else. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiDsLoad2EndOp ( + ACPI_WALK_STATE *WalkState) +{ + ACPI_PARSE_OBJECT *Op; + ACPI_STATUS Status = AE_OK; + ACPI_OBJECT_TYPE ObjectType; + ACPI_NAMESPACE_NODE *Node; + ACPI_PARSE_OBJECT *Arg; + ACPI_NAMESPACE_NODE *NewNode; +#ifndef ACPI_NO_METHOD_EXECUTION + UINT32 i; +#endif + + + ACPI_FUNCTION_TRACE (DsLoad2EndOp); + + Op = WalkState->Op; + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n", + WalkState->OpInfo->Name, Op, WalkState)); + + /* Check if opcode had an associated namespace object */ + + if (!(WalkState->OpInfo->Flags & AML_NSOBJECT)) + { +#ifndef ACPI_NO_METHOD_EXECUTION +#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE + /* No namespace object. Executable opcode? */ + + if ((WalkState->OpInfo->Class == AML_CLASS_EXECUTE) || + (WalkState->OpInfo->Class == AML_CLASS_CONTROL)) + { + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "End/EXEC: %s (fl %8.8X)\n", WalkState->OpInfo->Name, + WalkState->OpInfo->Flags)); + + /* Executing a type1 or type2 opcode outside of a method */ + + Status = AcpiDsExecEndOp (WalkState); + return_ACPI_STATUS (Status); + } +#endif +#endif + return_ACPI_STATUS (AE_OK); + } + + if (Op->Common.AmlOpcode == AML_SCOPE_OP) + { + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "Ending scope Op=%p State=%p\n", Op, WalkState)); + } + + ObjectType = WalkState->OpInfo->ObjectType; + + /* + * Get the Node/name from the earlier lookup + * (It was saved in the *op structure) + */ + Node = Op->Common.Node; + + /* + * Put the Node on the object stack (Contains the ACPI Name of + * this object) + */ + WalkState->Operands[0] = (void *) Node; + WalkState->NumOperands = 1; + + /* Pop the scope stack */ + + if (AcpiNsOpensScope (ObjectType) && + (Op->Common.AmlOpcode != AML_INT_METHODCALL_OP)) + { + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s) Popping scope for Op %p\n", + AcpiUtGetTypeName (ObjectType), Op)); + + Status = AcpiDsScopeStackPop (WalkState); + if (ACPI_FAILURE (Status)) + { + goto Cleanup; + } + } + + /* + * Named operations are as follows: + * + * AML_ALIAS + * AML_BANKFIELD + * AML_CREATEBITFIELD + * AML_CREATEBYTEFIELD + * AML_CREATEDWORDFIELD + * AML_CREATEFIELD + * AML_CREATEQWORDFIELD + * AML_CREATEWORDFIELD + * AML_DATA_REGION + * AML_DEVICE + * AML_EVENT + * AML_FIELD + * AML_INDEXFIELD + * AML_METHOD + * AML_METHODCALL + * AML_MUTEX + * AML_NAME + * AML_NAMEDFIELD + * AML_OPREGION + * AML_POWERRES + * AML_PROCESSOR + * AML_SCOPE + * AML_THERMALZONE + */ + + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "Create-Load [%s] State=%p Op=%p NamedObj=%p\n", + AcpiPsGetOpcodeName (Op->Common.AmlOpcode), WalkState, Op, Node)); + + /* Decode the opcode */ + + Arg = Op->Common.Value.Arg; + + switch (WalkState->OpInfo->Type) + { +#ifndef ACPI_NO_METHOD_EXECUTION + + case AML_TYPE_CREATE_FIELD: + /* + * Create the field object, but the field buffer and index must + * be evaluated later during the execution phase + */ + Status = AcpiDsCreateBufferField (Op, WalkState); + break; + + + case AML_TYPE_NAMED_FIELD: + /* + * If we are executing a method, initialize the field + */ + if (WalkState->MethodNode) + { + Status = AcpiDsInitFieldObjects (Op, WalkState); + } + + switch (Op->Common.AmlOpcode) + { + case AML_INDEX_FIELD_OP: + + Status = AcpiDsCreateIndexField (Op, (ACPI_HANDLE) Arg->Common.Node, + WalkState); + break; + + case AML_BANK_FIELD_OP: + + Status = AcpiDsCreateBankField (Op, Arg->Common.Node, WalkState); + break; + + case AML_FIELD_OP: + + Status = AcpiDsCreateField (Op, Arg->Common.Node, WalkState); + break; + + default: + /* All NAMED_FIELD opcodes must be handled above */ + break; + } + break; + + + case AML_TYPE_NAMED_SIMPLE: + + Status = AcpiDsCreateOperands (WalkState, Arg); + if (ACPI_FAILURE (Status)) + { + goto Cleanup; + } + + switch (Op->Common.AmlOpcode) + { + case AML_PROCESSOR_OP: + + Status = AcpiExCreateProcessor (WalkState); + break; + + case AML_POWER_RES_OP: + + Status = AcpiExCreatePowerResource (WalkState); + break; + + case AML_MUTEX_OP: + + Status = AcpiExCreateMutex (WalkState); + break; + + case AML_EVENT_OP: + + Status = AcpiExCreateEvent (WalkState); + break; + + case AML_DATA_REGION_OP: + + Status = AcpiExCreateTableRegion (WalkState); + break; + + case AML_ALIAS_OP: + + Status = AcpiExCreateAlias (WalkState); + break; + + default: + /* Unknown opcode */ + + Status = AE_OK; + goto Cleanup; + } + + /* Delete operands */ + + for (i = 1; i < WalkState->NumOperands; i++) + { + AcpiUtRemoveReference (WalkState->Operands[i]); + WalkState->Operands[i] = NULL; + } + + break; +#endif /* ACPI_NO_METHOD_EXECUTION */ + + case AML_TYPE_NAMED_COMPLEX: + + switch (Op->Common.AmlOpcode) + { +#ifndef ACPI_NO_METHOD_EXECUTION + case AML_REGION_OP: + + /* + * If we are executing a method, initialize the region + */ + if (WalkState->MethodNode) + { + Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length, + (ACPI_ADR_SPACE_TYPE) + ((Op->Common.Value.Arg)->Common.Value.Integer), + WalkState); + if (ACPI_FAILURE (Status)) + { + return (Status); + } + } + + /* + * The OpRegion is not fully parsed at this time. Only valid + * argument is the SpaceId. (We must save the address of the + * AML of the address and length operands) + */ + + /* + * If we have a valid region, initialize it + * Namespace is NOT locked at this point. + * + * TBD: need to unlock interpreter if it is locked, in order + * to allow _REG methods to be run. + */ + Status = AcpiEvInitializeRegion (AcpiNsGetAttachedObject (Node), + FALSE); + if (ACPI_FAILURE (Status)) + { + /* + * If AE_NOT_EXIST is returned, it is not fatal + * because many regions get created before a handler + * is installed for said region. + */ + if (AE_NOT_EXIST == Status) + { + Status = AE_OK; + } + } + break; + + + case AML_NAME_OP: + + Status = AcpiDsCreateNode (WalkState, Node, Op); + break; + + + case AML_METHOD_OP: + /* + * MethodOp PkgLength NameString MethodFlags TermList + * + * Note: We must create the method node/object pair as soon as we + * see the method declaration. This allows later pass1 parsing + * of invocations of the method (need to know the number of + * arguments.) + */ + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "LOADING-Method: State=%p Op=%p NamedObj=%p\n", + WalkState, Op, Op->Named.Node)); + + if (!AcpiNsGetAttachedObject (Op->Named.Node)) + { + WalkState->Operands[0] = ACPI_CAST_PTR (void, Op->Named.Node); + WalkState->NumOperands = 1; + + Status = AcpiDsCreateOperands (WalkState, Op->Common.Value.Arg); + if (ACPI_SUCCESS (Status)) + { + Status = AcpiExCreateMethod (Op->Named.Data, + Op->Named.Length, WalkState); + } + WalkState->Operands[0] = NULL; + WalkState->NumOperands = 0; + + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + } + break; + +#endif /* ACPI_NO_METHOD_EXECUTION */ + + default: + /* All NAMED_COMPLEX opcodes must be handled above */ + break; + } + break; + + + case AML_CLASS_INTERNAL: + + /* case AML_INT_NAMEPATH_OP: */ + break; + + + case AML_CLASS_METHOD_CALL: + + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "RESOLVING-MethodCall: State=%p Op=%p NamedObj=%p\n", + WalkState, Op, Node)); + + /* + * Lookup the method name and save the Node + */ + Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Common.Value.String, + ACPI_TYPE_ANY, ACPI_IMODE_LOAD_PASS2, + ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, + WalkState, &(NewNode)); + if (ACPI_SUCCESS (Status)) + { + /* + * Make sure that what we found is indeed a method + * We didn't search for a method on purpose, to see if the name + * would resolve + */ + if (NewNode->Type != ACPI_TYPE_METHOD) + { + Status = AE_AML_OPERAND_TYPE; + } + + /* We could put the returned object (Node) on the object stack for + * later, but for now, we will put it in the "op" object that the + * parser uses, so we can get it again at the end of this scope + */ + Op->Common.Node = NewNode; + } + else + { + ACPI_ERROR_NAMESPACE (Arg->Common.Value.String, Status); + } + break; + + + default: + break; + } + +Cleanup: + + /* Remove the Node pushed at the very beginning */ + + WalkState->Operands[0] = NULL; + WalkState->NumOperands = 0; + return_ACPI_STATUS (Status); +} + + |