diff options
Diffstat (limited to 'sys/contrib/dev/acpica/components/dispatcher/dswload2.c')
| -rw-r--r-- | sys/contrib/dev/acpica/components/dispatcher/dswload2.c | 747 |
1 files changed, 747 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/components/dispatcher/dswload2.c b/sys/contrib/dev/acpica/components/dispatcher/dswload2.c new file mode 100644 index 0000000..9bc8b31 --- /dev/null +++ b/sys/contrib/dev/acpica/components/dispatcher/dswload2.c @@ -0,0 +1,747 @@ +/****************************************************************************** + * + * Module Name: dswload2 - Dispatcher second pass namespace load callbacks + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2012, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#define __DSWLOAD2_C__ + +#include <contrib/dev/acpica/include/acpi.h> +#include <contrib/dev/acpica/include/accommon.h> +#include <contrib/dev/acpica/include/acparser.h> +#include <contrib/dev/acpica/include/amlcode.h> +#include <contrib/dev/acpica/include/acdispat.h> +#include <contrib/dev/acpica/include/acinterp.h> +#include <contrib/dev/acpica/include/acnamesp.h> +#include <contrib/dev/acpica/include/acevents.h> + +#define _COMPONENT ACPI_DISPATCHER + ACPI_MODULE_NAME ("dswload2") + + +/******************************************************************************* + * + * 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))) + { + 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: + + /* Special case for Scope(\) -> refers to the Root node */ + + if (Op && (Op->Named.Node == AcpiGbl_RootNode)) + { + Node = Op->Named.Node; + + Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + } + else + { + /* + * 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 type ANY\n", + AcpiUtGetNodeName (Node), 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), AcpiUtGetNodeName (Node))); + + 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; + + if (!(WalkState->ParseFlags & ACPI_PARSE_MODULE_LEVEL)) + { + Flags |= ACPI_NS_TEMPORARY; + } + } + + /* Add new entry or lookup existing entry */ + + Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType, + ACPI_IMODE_LOAD_PASS2, Flags, WalkState, &Node); + + if (ACPI_SUCCESS (Status) && (Flags & ACPI_NS_TEMPORARY)) + { + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "***New Node [%4.4s] %p is temporary\n", + AcpiUtGetNodeName (Node), 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; + UINT8 RegionSpace; +#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)) + { + 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_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: + case AML_DATA_REGION_OP: + + if (Op->Common.AmlOpcode == AML_REGION_OP) + { + RegionSpace = (ACPI_ADR_SPACE_TYPE) + ((Op->Common.Value.Arg)->Common.Value.Integer); + } + else + { + RegionSpace = ACPI_ADR_SPACE_DATA_TABLE; + } + + /* + * The OpRegion is not fully parsed at this time. The 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. The namespace is + * unlocked at this point. + * + * Need to unlock interpreter if it is locked (if we are running + * a control method), in order to allow _REG methods to be run + * during AcpiEvInitializeRegion. + */ + if (WalkState->MethodNode) + { + /* + * Executing a method: initialize the region and unlock + * the interpreter + */ + Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length, + RegionSpace, WalkState); + if (ACPI_FAILURE (Status)) + { + return (Status); + } + + AcpiExExitInterpreter (); + } + + Status = AcpiEvInitializeRegion (AcpiNsGetAttachedObject (Node), + FALSE); + if (WalkState->MethodNode) + { + AcpiExEnterInterpreter (); + } + + 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); +} + |
