ACPI_STATUS AcpiEvInitializeRegion ( ACPI_OPERAND_OBJECT *RegionObj, BOOLEAN AcpiNsLocked) { ACPI_OPERAND_OBJECT *HandlerObj; ACPI_OPERAND_OBJECT *ObjDesc; ACPI_ADR_SPACE_TYPE SpaceId; ACPI_NAMESPACE_NODE *Node; ACPI_STATUS Status; ACPI_NAMESPACE_NODE *MethodNode; ACPI_NAME *RegNamePtr = (ACPI_NAME *) METHOD_NAME__REG; ACPI_OPERAND_OBJECT *RegionObj2; ACPI_FUNCTION_TRACE_U32 (EvInitializeRegion, AcpiNsLocked); if (!RegionObj) { return_ACPI_STATUS (AE_BAD_PARAMETER); } if (RegionObj->Common.Flags & AOPOBJ_OBJECT_INITIALIZED) { return_ACPI_STATUS (AE_OK); } RegionObj2 = AcpiNsGetSecondaryObject (RegionObj); if (!RegionObj2) { return_ACPI_STATUS (AE_NOT_EXIST); } Node = AcpiNsGetParentNode (RegionObj->Region.Node); SpaceId = RegionObj->Region.SpaceId; /* Setup defaults */ RegionObj->Region.Handler = NULL; RegionObj2->Extra.Method_REG = NULL; RegionObj->Common.Flags &= ~(AOPOBJ_SETUP_COMPLETE); RegionObj->Common.Flags |= AOPOBJ_OBJECT_INITIALIZED; /* Find any "_REG" method associated with this region definition */ Status = AcpiNsSearchOneScope ( *RegNamePtr, Node, ACPI_TYPE_METHOD, &MethodNode); if (ACPI_SUCCESS (Status)) { /* * The _REG method is optional and there can be only one per region * definition. This will be executed when the handler is attached * or removed */ RegionObj2->Extra.Method_REG = MethodNode; } /* * The following loop depends upon the root Node having no parent * ie: AcpiGbl_RootNode->ParentEntry being set to NULL */ while (Node) { /* Check to see if a handler exists */ HandlerObj = NULL; ObjDesc = AcpiNsGetAttachedObject (Node); if (ObjDesc) { /* Can only be a handler if the object exists */ switch (Node->Type) { case ACPI_TYPE_DEVICE: HandlerObj = ObjDesc->Device.Handler; break; case ACPI_TYPE_PROCESSOR: HandlerObj = ObjDesc->Processor.Handler; break; case ACPI_TYPE_THERMAL: HandlerObj = ObjDesc->ThermalZone.Handler; break; default: /* Ignore other objects */ break; } while (HandlerObj) { /* Is this handler of the correct type? */ if (HandlerObj->AddressSpace.SpaceId == SpaceId) { /* Found correct handler */ ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, "Found handler %p for region %p in obj %p\n", HandlerObj, RegionObj, ObjDesc)); Status = AcpiEvAttachRegion (HandlerObj, RegionObj, AcpiNsLocked); /* * Tell all users that this region is usable by * running the _REG method */ if (AcpiNsLocked) { Status = AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } } Status = AcpiEvExecuteRegMethod (RegionObj, 1); if (AcpiNsLocked) { Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } } return_ACPI_STATUS (AE_OK); } /* Try next handler in the list */ HandlerObj = HandlerObj->AddressSpace.Next; } } /* This node does not have the handler we need; Pop up one level */ Node = AcpiNsGetParentNode (Node); } /* If we get here, there is no handler for this region */ ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, "No handler for RegionType %s(%X) (RegionObj %p)\n", AcpiUtGetRegionName (SpaceId), SpaceId, RegionObj)); return_ACPI_STATUS (AE_NOT_EXIST); }
ACPI_STATUS AcpiDsCallControlMethod ( ACPI_THREAD_STATE *Thread, ACPI_WALK_STATE *ThisWalkState, ACPI_PARSE_OBJECT *Op) { ACPI_STATUS Status; ACPI_NAMESPACE_NODE *MethodNode; ACPI_WALK_STATE *NextWalkState = NULL; ACPI_OPERAND_OBJECT *ObjDesc; ACPI_EVALUATE_INFO *Info; UINT32 i; ACPI_FUNCTION_TRACE_PTR (DsCallControlMethod, ThisWalkState); ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Calling method %p, currentstate=%p\n", ThisWalkState->PrevOp, ThisWalkState)); /* * Get the namespace entry for the control method we are about to call */ MethodNode = ThisWalkState->MethodCallNode; if (!MethodNode) { return_ACPI_STATUS (AE_NULL_ENTRY); } ObjDesc = AcpiNsGetAttachedObject (MethodNode); if (!ObjDesc) { return_ACPI_STATUS (AE_NULL_OBJECT); } /* Init for new method, possibly wait on method mutex */ Status = AcpiDsBeginMethodExecution (MethodNode, ObjDesc, ThisWalkState); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* Begin method parse/execution. Create a new walk state */ NextWalkState = AcpiDsCreateWalkState (ObjDesc->Method.OwnerId, NULL, ObjDesc, Thread); if (!NextWalkState) { Status = AE_NO_MEMORY; goto Cleanup; } /* * The resolved arguments were put on the previous walk state's operand * stack. Operands on the previous walk state stack always * start at index 0. Also, null terminate the list of arguments */ ThisWalkState->Operands [ThisWalkState->NumOperands] = NULL; /* * Allocate and initialize the evaluation information block * TBD: this is somewhat inefficient, should change interface to * DsInitAmlWalk. For now, keeps this struct off the CPU stack */ Info = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO)); if (!Info) { return_ACPI_STATUS (AE_NO_MEMORY); } Info->Parameters = &ThisWalkState->Operands[0]; Status = AcpiDsInitAmlWalk (NextWalkState, NULL, MethodNode, ObjDesc->Method.AmlStart, ObjDesc->Method.AmlLength, Info, ACPI_IMODE_EXECUTE); ACPI_FREE (Info); if (ACPI_FAILURE (Status)) { goto Cleanup; } /* * Delete the operands on the previous walkstate operand stack * (they were copied to new objects) */ for (i = 0; i < ObjDesc->Method.ParamCount; i++) { AcpiUtRemoveReference (ThisWalkState->Operands [i]); ThisWalkState->Operands [i] = NULL; } /* Clear the operand stack */ ThisWalkState->NumOperands = 0; ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "**** Begin nested execution of [%4.4s] **** WalkState=%p\n", MethodNode->Name.Ascii, NextWalkState)); /* Invoke an internal method if necessary */ if (ObjDesc->Method.InfoFlags & ACPI_METHOD_INTERNAL_ONLY) { Status = ObjDesc->Method.Dispatch.Implementation (NextWalkState); if (Status == AE_OK) { Status = AE_CTRL_TERMINATE; } } return_ACPI_STATUS (Status); Cleanup: /* On error, we must terminate the method properly */ AcpiDsTerminateControlMethod (ObjDesc, NextWalkState); if (NextWalkState) { AcpiDsDeleteWalkState (NextWalkState); } return_ACPI_STATUS (Status); }
ACPI_STATUS AcpiRemoveAddressSpaceHandler ( ACPI_HANDLE Device, ACPI_ADR_SPACE_TYPE SpaceId, ACPI_ADR_SPACE_HANDLER Handler) { ACPI_OPERAND_OBJECT *ObjDesc; ACPI_OPERAND_OBJECT *HandlerObj; ACPI_OPERAND_OBJECT *RegionObj; ACPI_OPERAND_OBJECT **LastObjPtr; ACPI_NAMESPACE_NODE *Node; ACPI_STATUS Status; ACPI_FUNCTION_TRACE (AcpiRemoveAddressSpaceHandler); /* Parameter validation */ if (!Device) { return_ACPI_STATUS (AE_BAD_PARAMETER); } Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* Convert and validate the device handle */ Node = AcpiNsValidateHandle (Device); if (!Node || ((Node->Type != ACPI_TYPE_DEVICE) && (Node->Type != ACPI_TYPE_PROCESSOR) && (Node->Type != ACPI_TYPE_THERMAL) && (Node != AcpiGbl_RootNode))) { Status = AE_BAD_PARAMETER; goto UnlockAndExit; } /* Make sure the internal object exists */ ObjDesc = AcpiNsGetAttachedObject (Node); if (!ObjDesc) { Status = AE_NOT_EXIST; goto UnlockAndExit; } /* Find the address handler the user requested */ HandlerObj = ObjDesc->Device.Handler; LastObjPtr = &ObjDesc->Device.Handler; while (HandlerObj) { /* We have a handler, see if user requested this one */ if (HandlerObj->AddressSpace.SpaceId == SpaceId) { /* Handler must be the same as the installed handler */ if (HandlerObj->AddressSpace.Handler != Handler) { Status = AE_BAD_PARAMETER; goto UnlockAndExit; } /* Matched SpaceId, first dereference this in the Regions */ ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, "Removing address handler %p(%p) for region %s " "on Device %p(%p)\n", HandlerObj, Handler, AcpiUtGetRegionName (SpaceId), Node, ObjDesc)); RegionObj = HandlerObj->AddressSpace.RegionList; /* Walk the handler's region list */ while (RegionObj) { /* * First disassociate the handler from the region. * * NOTE: this doesn't mean that the region goes away * The region is just inaccessible as indicated to * the _REG method */ AcpiEvDetachRegion (RegionObj, TRUE); /* * Walk the list: Just grab the head because the * DetachRegion removed the previous head. */ RegionObj = HandlerObj->AddressSpace.RegionList; } /* Remove this Handler object from the list */ *LastObjPtr = HandlerObj->AddressSpace.Next; /* Now we can delete the handler object */ AcpiUtRemoveReference (HandlerObj); goto UnlockAndExit; } /* Walk the linked list of handlers */ LastObjPtr = &HandlerObj->AddressSpace.Next; HandlerObj = HandlerObj->AddressSpace.Next; } /* The handler does not exist */ ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, "Unable to remove address handler %p for %s(%X), DevNode %p, obj %p\n", Handler, AcpiUtGetRegionName (SpaceId), SpaceId, Node, ObjDesc)); Status = AE_NOT_EXIST; UnlockAndExit: (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); return_ACPI_STATUS (Status); }
ACPI_STATUS AcpiInstallNotifyHandler ( ACPI_HANDLE Device, UINT32 HandlerType, ACPI_NOTIFY_HANDLER Handler, void *Context) { ACPI_NAMESPACE_NODE *Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Device); ACPI_OPERAND_OBJECT *ObjDesc; ACPI_OPERAND_OBJECT *HandlerObj; ACPI_STATUS Status; UINT32 i; ACPI_FUNCTION_TRACE (AcpiInstallNotifyHandler); /* Parameter validation */ if ((!Device) || (!Handler) || (!HandlerType) || (HandlerType > ACPI_MAX_NOTIFY_HANDLER_TYPE)) { return_ACPI_STATUS (AE_BAD_PARAMETER); } Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* * Root Object: * Registering a notify handler on the root object indicates that the * caller wishes to receive notifications for all objects. Note that * only one global handler can be registered per notify type. * Ensure that a handler is not already installed. */ if (Device == ACPI_ROOT_OBJECT) { for (i = 0; i < ACPI_NUM_NOTIFY_TYPES; i++) { if (HandlerType & (i+1)) { if (AcpiGbl_GlobalNotify[i].Handler) { Status = AE_ALREADY_EXISTS; goto UnlockAndExit; } AcpiGbl_GlobalNotify[i].Handler = Handler; AcpiGbl_GlobalNotify[i].Context = Context; } } goto UnlockAndExit; /* Global notify handler installed, all done */ } /* * All Other Objects: * Caller will only receive notifications specific to the target * object. Note that only certain object types are allowed to * receive notifications. */ /* Are Notifies allowed on this object? */ if (!AcpiEvIsNotifyObject (Node)) { Status = AE_TYPE; goto UnlockAndExit; } /* Check for an existing internal object, might not exist */ ObjDesc = AcpiNsGetAttachedObject (Node); if (!ObjDesc) { /* Create a new object */ ObjDesc = AcpiUtCreateInternalObject (Node->Type); if (!ObjDesc) { Status = AE_NO_MEMORY; goto UnlockAndExit; } /* Attach new object to the Node, remove local reference */ Status = AcpiNsAttachObject (Device, ObjDesc, Node->Type); AcpiUtRemoveReference (ObjDesc); if (ACPI_FAILURE (Status)) { goto UnlockAndExit; } } /* Ensure that the handler is not already installed in the lists */ for (i = 0; i < ACPI_NUM_NOTIFY_TYPES; i++) { if (HandlerType & (i+1)) { HandlerObj = ObjDesc->CommonNotify.NotifyList[i]; while (HandlerObj) { if (HandlerObj->Notify.Handler == Handler) { Status = AE_ALREADY_EXISTS; goto UnlockAndExit; } HandlerObj = HandlerObj->Notify.Next[i]; } } } /* Create and populate a new notify handler object */ HandlerObj = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_NOTIFY); if (!HandlerObj) { Status = AE_NO_MEMORY; goto UnlockAndExit; } HandlerObj->Notify.Node = Node; HandlerObj->Notify.HandlerType = HandlerType; HandlerObj->Notify.Handler = Handler; HandlerObj->Notify.Context = Context; /* Install the handler at the list head(s) */ for (i = 0; i < ACPI_NUM_NOTIFY_TYPES; i++) { if (HandlerType & (i+1)) { HandlerObj->Notify.Next[i] = ObjDesc->CommonNotify.NotifyList[i]; ObjDesc->CommonNotify.NotifyList[i] = HandlerObj; } } /* Add an extra reference if handler was installed in both lists */ if (HandlerType == ACPI_ALL_NOTIFY) { AcpiUtAddReference (HandlerObj); } UnlockAndExit: (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); return_ACPI_STATUS (Status); }
static ACPI_STATUS AcpiDbIntegrityWalk ( ACPI_HANDLE ObjHandle, UINT32 NestingLevel, void *Context, void **ReturnValue) { ACPI_INTEGRITY_INFO *Info = (ACPI_INTEGRITY_INFO *) Context; ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle; ACPI_OPERAND_OBJECT *Object; BOOLEAN Alias = TRUE; Info->Nodes++; /* Verify the NS node, and dereference aliases */ while (Alias) { if (ACPI_GET_DESCRIPTOR_TYPE (Node) != ACPI_DESC_TYPE_NAMED) { AcpiOsPrintf ("Invalid Descriptor Type for Node %p [%s] - is %2.2X should be %2.2X\n", Node, AcpiUtGetDescriptorName (Node), ACPI_GET_DESCRIPTOR_TYPE (Node), ACPI_DESC_TYPE_NAMED); return (AE_OK); } if ((Node->Type == ACPI_TYPE_LOCAL_ALIAS) || (Node->Type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) { Node = (ACPI_NAMESPACE_NODE *) Node->Object; } else { Alias = FALSE; } } if (Node->Type > ACPI_TYPE_LOCAL_MAX) { AcpiOsPrintf ("Invalid Object Type for Node %p, Type = %X\n", Node, Node->Type); return (AE_OK); } if (!AcpiUtValidAcpiName (Node->Name.Integer)) { AcpiOsPrintf ("Invalid AcpiName for Node %p\n", Node); return (AE_OK); } Object = AcpiNsGetAttachedObject (Node); if (Object) { Info->Objects++; if (ACPI_GET_DESCRIPTOR_TYPE (Object) != ACPI_DESC_TYPE_OPERAND) { AcpiOsPrintf ("Invalid Descriptor Type for Object %p [%s]\n", Object, AcpiUtGetDescriptorName (Object)); } } return (AE_OK); }
ACPI_STATUS AcpiDsExecEndOp ( ACPI_WALK_STATE *WalkState) { ACPI_PARSE_OBJECT *Op; ACPI_STATUS Status = AE_OK; UINT32 OpType; UINT32 OpClass; ACPI_PARSE_OBJECT *NextOp; ACPI_PARSE_OBJECT *FirstArg; ACPI_FUNCTION_TRACE_PTR (DsExecEndOp, WalkState); Op = WalkState->Op; OpType = WalkState->OpInfo->Type; OpClass = WalkState->OpInfo->Class; if (OpClass == AML_CLASS_UNKNOWN) { ACPI_ERROR ((AE_INFO, "Unknown opcode 0x%X", Op->Common.AmlOpcode)); return_ACPI_STATUS (AE_NOT_IMPLEMENTED); } FirstArg = Op->Common.Value.Arg; /* Init the walk state */ WalkState->NumOperands = 0; WalkState->OperandIndex = 0; WalkState->ReturnDesc = NULL; WalkState->ResultObj = NULL; /* Call debugger for single step support (DEBUG build only) */ Status = AcpiDbSingleStep (WalkState, Op, OpClass); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* Decode the Opcode Class */ switch (OpClass) { case AML_CLASS_ARGUMENT: /* Constants, literals, etc. */ if (WalkState->Opcode == AML_INT_NAMEPATH_OP) { Status = AcpiDsEvaluateNamePath (WalkState); if (ACPI_FAILURE (Status)) { goto Cleanup; } } break; case AML_CLASS_EXECUTE: /* Most operators with arguments */ /* Build resolved operand stack */ Status = AcpiDsCreateOperands (WalkState, FirstArg); if (ACPI_FAILURE (Status)) { goto Cleanup; } /* * All opcodes require operand resolution, with the only exceptions * being the ObjectType and SizeOf operators. */ if (!(WalkState->OpInfo->Flags & AML_NO_OPERAND_RESOLVE)) { /* Resolve all operands */ Status = AcpiExResolveOperands (WalkState->Opcode, &(WalkState->Operands [WalkState->NumOperands -1]), WalkState); } if (ACPI_SUCCESS (Status)) { /* * Dispatch the request to the appropriate interpreter handler * routine. There is one routine per opcode "type" based upon the * number of opcode arguments and return type. */ Status = AcpiGbl_OpTypeDispatch[OpType] (WalkState); } else { /* * Treat constructs of the form "Store(LocalX,LocalX)" as noops when the * Local is uninitialized. */ if ((Status == AE_AML_UNINITIALIZED_LOCAL) && (WalkState->Opcode == AML_STORE_OP) && (WalkState->Operands[0]->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) && (WalkState->Operands[1]->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) && (WalkState->Operands[0]->Reference.Class == WalkState->Operands[1]->Reference.Class) && (WalkState->Operands[0]->Reference.Value == WalkState->Operands[1]->Reference.Value)) { Status = AE_OK; } else { ACPI_EXCEPTION ((AE_INFO, Status, "While resolving operands for [%s]", AcpiPsGetOpcodeName (WalkState->Opcode))); } } /* Always delete the argument objects and clear the operand stack */ AcpiDsClearOperands (WalkState); /* * If a result object was returned from above, push it on the * current result stack */ if (ACPI_SUCCESS (Status) && WalkState->ResultObj) { Status = AcpiDsResultPush (WalkState->ResultObj, WalkState); } break; default: switch (OpType) { case AML_TYPE_CONTROL: /* Type 1 opcode, IF/ELSE/WHILE/NOOP */ /* 1 Operand, 0 ExternalResult, 0 InternalResult */ Status = AcpiDsExecEndControlOp (WalkState, Op); break; case AML_TYPE_METHOD_CALL: /* * If the method is referenced from within a package * declaration, it is not a invocation of the method, just * a reference to it. */ if ((Op->Asl.Parent) && ((Op->Asl.Parent->Asl.AmlOpcode == AML_PACKAGE_OP) || (Op->Asl.Parent->Asl.AmlOpcode == AML_VAR_PACKAGE_OP))) { ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Method Reference in a Package, Op=%p\n", Op)); Op->Common.Node = (ACPI_NAMESPACE_NODE *) Op->Asl.Value.Arg->Asl.Node; AcpiUtAddReference (Op->Asl.Value.Arg->Asl.Node->Object); return_ACPI_STATUS (AE_OK); } ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Method invocation, Op=%p\n", Op)); /* * (AML_METHODCALL) Op->Asl.Value.Arg->Asl.Node contains * the method Node pointer */ /* NextOp points to the op that holds the method name */ NextOp = FirstArg; /* NextOp points to first argument op */ NextOp = NextOp->Common.Next; /* * Get the method's arguments and put them on the operand stack */ Status = AcpiDsCreateOperands (WalkState, NextOp); if (ACPI_FAILURE (Status)) { break; } /* * Since the operands will be passed to another control method, * we must resolve all local references here (Local variables, * arguments to *this* method, etc.) */ Status = AcpiDsResolveOperands (WalkState); if (ACPI_FAILURE (Status)) { /* On error, clear all resolved operands */ AcpiDsClearOperands (WalkState); break; } /* * Tell the walk loop to preempt this running method and * execute the new method */ Status = AE_CTRL_TRANSFER; /* * Return now; we don't want to disturb anything, * especially the operand count! */ return_ACPI_STATUS (Status); case AML_TYPE_CREATE_FIELD: ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Executing CreateField Buffer/Index Op=%p\n", Op)); Status = AcpiDsLoad2EndOp (WalkState); if (ACPI_FAILURE (Status)) { break; } Status = AcpiDsEvalBufferFieldOperands (WalkState, Op); break; case AML_TYPE_CREATE_OBJECT: ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Executing CreateObject (Buffer/Package) Op=%p\n", Op)); switch (Op->Common.Parent->Common.AmlOpcode) { case AML_NAME_OP: /* * Put the Node on the object stack (Contains the ACPI Name * of this object) */ WalkState->Operands[0] = (void *) Op->Common.Parent->Common.Node; WalkState->NumOperands = 1; Status = AcpiDsCreateNode (WalkState, Op->Common.Parent->Common.Node, Op->Common.Parent); if (ACPI_FAILURE (Status)) { break; } /* Fall through */ /*lint -fallthrough */ case AML_INT_EVAL_SUBTREE_OP: Status = AcpiDsEvalDataObjectOperands (WalkState, Op, AcpiNsGetAttachedObject (Op->Common.Parent->Common.Node)); break; default: Status = AcpiDsEvalDataObjectOperands (WalkState, Op, NULL); break; } /* * If a result object was returned from above, push it on the * current result stack */ if (WalkState->ResultObj) { Status = AcpiDsResultPush (WalkState->ResultObj, WalkState); } break; case AML_TYPE_NAMED_FIELD: case AML_TYPE_NAMED_COMPLEX: case AML_TYPE_NAMED_SIMPLE: case AML_TYPE_NAMED_NO_OBJ: Status = AcpiDsLoad2EndOp (WalkState); if (ACPI_FAILURE (Status)) { break; } if (Op->Common.AmlOpcode == AML_REGION_OP) { ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Executing OpRegion Address/Length Op=%p\n", Op)); Status = AcpiDsEvalRegionOperands (WalkState, Op); if (ACPI_FAILURE (Status)) { break; } } else if (Op->Common.AmlOpcode == AML_DATA_REGION_OP) { ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Executing DataTableRegion Strings Op=%p\n", Op)); Status = AcpiDsEvalTableRegionOperands (WalkState, Op); if (ACPI_FAILURE (Status)) { break; } } else if (Op->Common.AmlOpcode == AML_BANK_FIELD_OP) { ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Executing BankField Op=%p\n", Op)); Status = AcpiDsEvalBankFieldOperands (WalkState, Op); if (ACPI_FAILURE (Status)) { break; } } break; case AML_TYPE_UNDEFINED: ACPI_ERROR ((AE_INFO, "Undefined opcode type Op=%p", Op)); return_ACPI_STATUS (AE_NOT_IMPLEMENTED); case AML_TYPE_BOGUS: ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Internal opcode=%X type Op=%p\n", WalkState->Opcode, Op)); break; default: ACPI_ERROR ((AE_INFO, "Unimplemented opcode, class=0x%X " "type=0x%X Opcode=0x%X Op=%p", OpClass, OpType, Op->Common.AmlOpcode, Op)); Status = AE_NOT_IMPLEMENTED; break; } } /* * ACPI 2.0 support for 64-bit integers: Truncate numeric * result value if we are executing from a 32-bit ACPI table */ (void) AcpiExTruncateFor32bitTable (WalkState->ResultObj); /* * Check if we just completed the evaluation of a * conditional predicate */ if ((ACPI_SUCCESS (Status)) && (WalkState->ControlState) && (WalkState->ControlState->Common.State == ACPI_CONTROL_PREDICATE_EXECUTING) && (WalkState->ControlState->Control.PredicateOp == Op)) { Status = AcpiDsGetPredicateValue (WalkState, WalkState->ResultObj); WalkState->ResultObj = NULL; } Cleanup: if (WalkState->ResultObj) { /* Break to debugger to display result */ AcpiDbDisplayResultObject (WalkState->ResultObj,WalkState); /* * Delete the result op if and only if: * Parent will not use the result -- such as any * non-nested type2 op in a method (parent will be method) */ AcpiDsDeleteResultIfNotUsed (Op, WalkState->ResultObj, WalkState); } #ifdef _UNDER_DEVELOPMENT if (WalkState->ParserState.Aml == WalkState->ParserState.AmlEnd) { AcpiDbMethodEnd (WalkState); } #endif /* Invoke exception handler on error */ if (ACPI_FAILURE (Status)) { Status = AcpiDsMethodError (Status, WalkState); } /* Always clear the object stack */ WalkState->NumOperands = 0; return_ACPI_STATUS (Status); }
ACPI_STATUS AcpiExOpcode_1A_0T_1R ( ACPI_WALK_STATE *WalkState) { ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; ACPI_OPERAND_OBJECT *TempDesc; ACPI_OPERAND_OBJECT *ReturnDesc = NULL; ACPI_STATUS Status = AE_OK; UINT32 Type; ACPI_INTEGER Value; ACPI_FUNCTION_TRACE_STR (ExOpcode_1A_0T_1R, AcpiPsGetOpcodeName (WalkState->Opcode)); /* Examine the AML opcode */ switch (WalkState->Opcode) { case AML_LNOT_OP: /* LNot (Operand) */ ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); if (!ReturnDesc) { Status = AE_NO_MEMORY; goto Cleanup; } /* * Set result to ONES (TRUE) if Value == 0. Note: * ReturnDesc->Integer.Value is initially == 0 (FALSE) from above. */ if (!Operand[0]->Integer.Value) { ReturnDesc->Integer.Value = ACPI_INTEGER_MAX; } break; case AML_DECREMENT_OP: /* Decrement (Operand) */ case AML_INCREMENT_OP: /* Increment (Operand) */ /* * Create a new integer. Can't just get the base integer and * increment it because it may be an Arg or Field. */ ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); if (!ReturnDesc) { Status = AE_NO_MEMORY; goto Cleanup; } /* * Since we are expecting a Reference operand, it can be either a * NS Node or an internal object. */ TempDesc = Operand[0]; if (ACPI_GET_DESCRIPTOR_TYPE (TempDesc) == ACPI_DESC_TYPE_OPERAND) { /* Internal reference object - prevent deletion */ AcpiUtAddReference (TempDesc); } /* * Convert the Reference operand to an Integer (This removes a * reference on the Operand[0] object) * * NOTE: We use LNOT_OP here in order to force resolution of the * reference operand to an actual integer. */ Status = AcpiExResolveOperands (AML_LNOT_OP, &TempDesc, WalkState); if (ACPI_FAILURE (Status)) { ACPI_EXCEPTION ((AE_INFO, Status, "While resolving operands for [%s]", AcpiPsGetOpcodeName (WalkState->Opcode))); goto Cleanup; } /* * TempDesc is now guaranteed to be an Integer object -- * Perform the actual increment or decrement */ if (WalkState->Opcode == AML_INCREMENT_OP) { ReturnDesc->Integer.Value = TempDesc->Integer.Value +1; } else { ReturnDesc->Integer.Value = TempDesc->Integer.Value -1; } /* Finished with this Integer object */ AcpiUtRemoveReference (TempDesc); /* * Store the result back (indirectly) through the original * Reference object */ Status = AcpiExStore (ReturnDesc, Operand[0], WalkState); break; case AML_TYPE_OP: /* ObjectType (SourceObject) */ /* * Note: The operand is not resolved at this point because we want to * get the associated object, not its value. For example, we don't * want to resolve a FieldUnit to its value, we want the actual * FieldUnit object. */ /* Get the type of the base object */ Status = AcpiExResolveMultiple (WalkState, Operand[0], &Type, NULL); if (ACPI_FAILURE (Status)) { goto Cleanup; } /* Allocate a descriptor to hold the type. */ ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); if (!ReturnDesc) { Status = AE_NO_MEMORY; goto Cleanup; } ReturnDesc->Integer.Value = Type; break; case AML_SIZE_OF_OP: /* SizeOf (SourceObject) */ /* * Note: The operand is not resolved at this point because we want to * get the associated object, not its value. */ /* Get the base object */ Status = AcpiExResolveMultiple (WalkState, Operand[0], &Type, &TempDesc); if (ACPI_FAILURE (Status)) { goto Cleanup; } /* * The type of the base object must be integer, buffer, string, or * package. All others are not supported. * * NOTE: Integer is not specifically supported by the ACPI spec, * but is supported implicitly via implicit operand conversion. * rather than bother with conversion, we just use the byte width * global (4 or 8 bytes). */ switch (Type) { case ACPI_TYPE_INTEGER: Value = AcpiGbl_IntegerByteWidth; break; case ACPI_TYPE_STRING: Value = TempDesc->String.Length; break; case ACPI_TYPE_BUFFER: /* Buffer arguments may not be evaluated at this point */ Status = AcpiDsGetBufferArguments (TempDesc); Value = TempDesc->Buffer.Length; break; case ACPI_TYPE_PACKAGE: /* Package arguments may not be evaluated at this point */ Status = AcpiDsGetPackageArguments (TempDesc); Value = TempDesc->Package.Count; break; default: ACPI_ERROR ((AE_INFO, "Operand must be Buffer/Integer/String/Package - found type %s", AcpiUtGetTypeName (Type))); Status = AE_AML_OPERAND_TYPE; goto Cleanup; } if (ACPI_FAILURE (Status)) { goto Cleanup; } /* * Now that we have the size of the object, create a result * object to hold the value */ ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); if (!ReturnDesc) { Status = AE_NO_MEMORY; goto Cleanup; } ReturnDesc->Integer.Value = Value; break; case AML_REF_OF_OP: /* RefOf (SourceObject) */ Status = AcpiExGetObjectReference (Operand[0], &ReturnDesc, WalkState); if (ACPI_FAILURE (Status)) { goto Cleanup; } break; case AML_DEREF_OF_OP: /* DerefOf (ObjReference | String) */ /* Check for a method local or argument, or standalone String */ if (ACPI_GET_DESCRIPTOR_TYPE (Operand[0]) == ACPI_DESC_TYPE_NAMED) { TempDesc = AcpiNsGetAttachedObject ( (ACPI_NAMESPACE_NODE *) Operand[0]); if (TempDesc && ((ACPI_GET_OBJECT_TYPE (TempDesc) == ACPI_TYPE_STRING) || (ACPI_GET_OBJECT_TYPE (TempDesc) == ACPI_TYPE_LOCAL_REFERENCE))) { Operand[0] = TempDesc; AcpiUtAddReference (TempDesc); } else { Status = AE_AML_OPERAND_TYPE; goto Cleanup; } } else { switch (ACPI_GET_OBJECT_TYPE (Operand[0])) { case ACPI_TYPE_LOCAL_REFERENCE: /* * This is a DerefOf (LocalX | ArgX) * * Must resolve/dereference the local/arg reference first */ switch (Operand[0]->Reference.Opcode) { case AML_LOCAL_OP: case AML_ARG_OP: /* Set Operand[0] to the value of the local/arg */ Status = AcpiDsMethodDataGetValue ( Operand[0]->Reference.Opcode, Operand[0]->Reference.Offset, WalkState, &TempDesc); if (ACPI_FAILURE (Status)) { goto Cleanup; } /* * Delete our reference to the input object and * point to the object just retrieved */ AcpiUtRemoveReference (Operand[0]); Operand[0] = TempDesc; break; case AML_REF_OF_OP: /* Get the object to which the reference refers */ TempDesc = Operand[0]->Reference.Object; AcpiUtRemoveReference (Operand[0]); Operand[0] = TempDesc; break; default: /* Must be an Index op - handled below */ break; } break; case ACPI_TYPE_STRING: break; default: Status = AE_AML_OPERAND_TYPE; goto Cleanup; } } if (ACPI_GET_DESCRIPTOR_TYPE (Operand[0]) != ACPI_DESC_TYPE_NAMED) { if (ACPI_GET_OBJECT_TYPE (Operand[0]) == ACPI_TYPE_STRING) { /* * This is a DerefOf (String). The string is a reference * to a named ACPI object. * * 1) Find the owning Node * 2) Dereference the node to an actual object. Could be a * Field, so we need to resolve the node to a value. */ Status = AcpiNsGetNode (WalkState->ScopeInfo->Scope.Node, Operand[0]->String.Pointer, ACPI_NS_SEARCH_PARENT, ACPI_CAST_INDIRECT_PTR ( ACPI_NAMESPACE_NODE, &ReturnDesc)); if (ACPI_FAILURE (Status)) { goto Cleanup; } Status = AcpiExResolveNodeToValue ( ACPI_CAST_INDIRECT_PTR ( ACPI_NAMESPACE_NODE, &ReturnDesc), WalkState); goto Cleanup; } } /* Operand[0] may have changed from the code above */ if (ACPI_GET_DESCRIPTOR_TYPE (Operand[0]) == ACPI_DESC_TYPE_NAMED) { /* * This is a DerefOf (ObjectReference) * Get the actual object from the Node (This is the dereference). * This case may only happen when a LocalX or ArgX is * dereferenced above. */ ReturnDesc = AcpiNsGetAttachedObject ( (ACPI_NAMESPACE_NODE *) Operand[0]); AcpiUtAddReference (ReturnDesc); } else { /* * This must be a reference object produced by either the * Index() or RefOf() operator */ switch (Operand[0]->Reference.Opcode) { case AML_INDEX_OP: /* * The target type for the Index operator must be * either a Buffer or a Package */ switch (Operand[0]->Reference.TargetType) { case ACPI_TYPE_BUFFER_FIELD: TempDesc = Operand[0]->Reference.Object; /* * Create a new object that contains one element of the * buffer -- the element pointed to by the index. * * NOTE: index into a buffer is NOT a pointer to a * sub-buffer of the main buffer, it is only a pointer to a * single element (byte) of the buffer! */ ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); if (!ReturnDesc) { Status = AE_NO_MEMORY; goto Cleanup; } /* * Since we are returning the value of the buffer at the * indexed location, we don't need to add an additional * reference to the buffer itself. */ ReturnDesc->Integer.Value = TempDesc->Buffer.Pointer[Operand[0]->Reference.Offset]; break; case ACPI_TYPE_PACKAGE: /* * Return the referenced element of the package. We must * add another reference to the referenced object, however. */ ReturnDesc = *(Operand[0]->Reference.Where); if (ReturnDesc) { AcpiUtAddReference (ReturnDesc); } break; default: ACPI_ERROR ((AE_INFO, "Unknown Index TargetType %X in obj %p", Operand[0]->Reference.TargetType, Operand[0])); Status = AE_AML_OPERAND_TYPE; goto Cleanup; } break; case AML_REF_OF_OP: ReturnDesc = Operand[0]->Reference.Object; if (ACPI_GET_DESCRIPTOR_TYPE (ReturnDesc) == ACPI_DESC_TYPE_NAMED) { ReturnDesc = AcpiNsGetAttachedObject ( (ACPI_NAMESPACE_NODE *) ReturnDesc); } /* Add another reference to the object! */ AcpiUtAddReference (ReturnDesc); break; default: ACPI_ERROR ((AE_INFO, "Unknown opcode in reference(%p) - %X", Operand[0], Operand[0]->Reference.Opcode)); Status = AE_TYPE; goto Cleanup; } } break; default: ACPI_ERROR ((AE_INFO, "Unknown AML opcode %X", WalkState->Opcode)); Status = AE_AML_BAD_OPCODE; goto Cleanup; } Cleanup: /* Delete return object on error */ if (ACPI_FAILURE (Status)) { AcpiUtRemoveReference (ReturnDesc); } /* Save return object on success */ else { WalkState->ResultObj = ReturnDesc; } return_ACPI_STATUS (Status); }
ACPI_STATUS AcpiEvQueueNotifyRequest ( ACPI_NAMESPACE_NODE *Node, UINT32 NotifyValue) { ACPI_OPERAND_OBJECT *ObjDesc; ACPI_OPERAND_OBJECT *HandlerListHead = NULL; ACPI_GENERIC_STATE *Info; UINT8 HandlerListId = 0; ACPI_STATUS Status = AE_OK; ACPI_FUNCTION_NAME (EvQueueNotifyRequest); /* Are Notifies allowed on this object? */ if (!AcpiEvIsNotifyObject (Node)) { return (AE_TYPE); } /* Get the correct notify list type (System or Device) */ if (NotifyValue <= ACPI_MAX_SYS_NOTIFY) { HandlerListId = ACPI_SYSTEM_HANDLER_LIST; } else { HandlerListId = ACPI_DEVICE_HANDLER_LIST; } /* Get the notify object attached to the namespace Node */ ObjDesc = AcpiNsGetAttachedObject (Node); if (ObjDesc) { /* We have an attached object, Get the correct handler list */ HandlerListHead = ObjDesc->CommonNotify.NotifyList[HandlerListId]; } /* * If there is no notify handler (Global or Local) * for this object, just ignore the notify */ if (!AcpiGbl_GlobalNotify[HandlerListId].Handler && !HandlerListHead) { ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "No notify handler for Notify, ignoring (%4.4s, %X) node %p\n", AcpiUtGetNodeName (Node), NotifyValue, Node)); return (AE_OK); } /* Setup notify info and schedule the notify dispatcher */ Info = AcpiUtCreateGenericState (); if (!Info) { return (AE_NO_MEMORY); } Info->Common.DescriptorType = ACPI_DESC_TYPE_STATE_NOTIFY; Info->Notify.Node = Node; Info->Notify.Value = (UINT16) NotifyValue; Info->Notify.HandlerListId = HandlerListId; Info->Notify.HandlerListHead = HandlerListHead; Info->Notify.Global = &AcpiGbl_GlobalNotify[HandlerListId]; ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Dispatching Notify on [%4.4s] (%s) Value 0x%2.2X (%s) Node %p\n", AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Node->Type), NotifyValue, AcpiUtGetNotifyName (NotifyValue), Node)); Status = AcpiOsExecute (OSL_NOTIFY_HANDLER, AcpiEvNotifyDispatch, Info); if (ACPI_FAILURE (Status)) { AcpiUtDeleteGenericState (Info); } return (Status); }
ACPI_STATUS AcpiInstallNotifyHandler ( ACPI_HANDLE Device, UINT32 HandlerType, ACPI_NOTIFY_HANDLER Handler, void *Context) { ACPI_OPERAND_OBJECT *ObjDesc; ACPI_OPERAND_OBJECT *NotifyObj; ACPI_NAMESPACE_NODE *Node; ACPI_STATUS Status; ACPI_FUNCTION_TRACE (AcpiInstallNotifyHandler); /* Parameter validation */ if ((!Device) || (!Handler) || (HandlerType > ACPI_MAX_NOTIFY_HANDLER_TYPE)) { return_ACPI_STATUS (AE_BAD_PARAMETER); } Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* Convert and validate the device handle */ Node = AcpiNsMapHandleToNode (Device); if (!Node) { Status = AE_BAD_PARAMETER; goto UnlockAndExit; } /* * Root Object: * Registering a notify handler on the root object indicates that the * caller wishes to receive notifications for all objects. Note that * only one <external> global handler can be regsitered (per notify type). */ if (Device == ACPI_ROOT_OBJECT) { /* Make sure the handler is not already installed */ if (((HandlerType & ACPI_SYSTEM_NOTIFY) && AcpiGbl_SystemNotify.Handler) || ((HandlerType & ACPI_DEVICE_NOTIFY) && AcpiGbl_DeviceNotify.Handler)) { Status = AE_ALREADY_EXISTS; goto UnlockAndExit; } if (HandlerType & ACPI_SYSTEM_NOTIFY) { AcpiGbl_SystemNotify.Node = Node; AcpiGbl_SystemNotify.Handler = Handler; AcpiGbl_SystemNotify.Context = Context; } if (HandlerType & ACPI_DEVICE_NOTIFY) { AcpiGbl_DeviceNotify.Node = Node; AcpiGbl_DeviceNotify.Handler = Handler; AcpiGbl_DeviceNotify.Context = Context; } /* Global notify handler installed */ } /* * All Other Objects: * Caller will only receive notifications specific to the target object. * Note that only certain object types can receive notifications. */ else { /* Notifies allowed on this object? */ if (!AcpiEvIsNotifyObject (Node)) { Status = AE_TYPE; goto UnlockAndExit; } /* Check for an existing internal object */ ObjDesc = AcpiNsGetAttachedObject (Node); if (ObjDesc) { /* Object exists - make sure there's no handler */ if (((HandlerType & ACPI_SYSTEM_NOTIFY) && ObjDesc->CommonNotify.SystemNotify) || ((HandlerType & ACPI_DEVICE_NOTIFY) && ObjDesc->CommonNotify.DeviceNotify)) { Status = AE_ALREADY_EXISTS; goto UnlockAndExit; } } else { /* Create a new object */ ObjDesc = AcpiUtCreateInternalObject (Node->Type); if (!ObjDesc) { Status = AE_NO_MEMORY; goto UnlockAndExit; } /* Attach new object to the Node */ Status = AcpiNsAttachObject (Device, ObjDesc, Node->Type); /* Remove local reference to the object */ AcpiUtRemoveReference (ObjDesc); if (ACPI_FAILURE (Status)) { goto UnlockAndExit; } } /* Install the handler */ NotifyObj = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_NOTIFY); if (!NotifyObj) { Status = AE_NO_MEMORY; goto UnlockAndExit; } NotifyObj->Notify.Node = Node; NotifyObj->Notify.Handler = Handler; NotifyObj->Notify.Context = Context; if (HandlerType & ACPI_SYSTEM_NOTIFY) { ObjDesc->CommonNotify.SystemNotify = NotifyObj; } if (HandlerType & ACPI_DEVICE_NOTIFY) { ObjDesc->CommonNotify.DeviceNotify = NotifyObj; } if (HandlerType == ACPI_ALL_NOTIFY) { /* Extra ref if installed in both */ AcpiUtAddReference (NotifyObj); } } UnlockAndExit: (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); return_ACPI_STATUS (Status); }
ACPI_STATUS AcpiNsEvaluate ( ACPI_EVALUATE_INFO *Info) { ACPI_STATUS Status; ACPI_FUNCTION_TRACE (NsEvaluate); if (!Info) { return_ACPI_STATUS (AE_BAD_PARAMETER); } if (!Info->Node) { /* * Get the actual namespace node for the target object if we * need to. Handles these cases: * * 1) Null node, valid pathname from root (absolute path) * 2) Node and valid pathname (path relative to Node) * 3) Node, Null pathname */ Status = AcpiNsGetNode (Info->PrefixNode, Info->RelativePathname, ACPI_NS_NO_UPSEARCH, &Info->Node); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } } /* * For a method alias, we must grab the actual method node so that * proper scoping context will be established before execution. */ if (AcpiNsGetType (Info->Node) == ACPI_TYPE_LOCAL_METHOD_ALIAS) { Info->Node = ACPI_CAST_PTR ( ACPI_NAMESPACE_NODE, Info->Node->Object); } /* Complete the info block initialization */ Info->ReturnObject = NULL; Info->NodeFlags = Info->Node->Flags; Info->ObjDesc = AcpiNsGetAttachedObject (Info->Node); ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "%s [%p] Value %p\n", Info->RelativePathname, Info->Node, AcpiNsGetAttachedObject (Info->Node))); /* Get info if we have a predefined name (_HID, etc.) */ Info->Predefined = AcpiUtMatchPredefinedMethod (Info->Node->Name.Ascii); /* Get the full pathname to the object, for use in warning messages */ Info->FullPathname = AcpiNsGetExternalPathname (Info->Node); if (!Info->FullPathname) { return_ACPI_STATUS (AE_NO_MEMORY); } /* Count the number of arguments being passed in */ Info->ParamCount = 0; if (Info->Parameters) { while (Info->Parameters[Info->ParamCount]) { Info->ParamCount++; } /* Warn on impossible argument count */ if (Info->ParamCount > ACPI_METHOD_NUM_ARGS) { ACPI_WARN_PREDEFINED ((AE_INFO, Info->FullPathname, ACPI_WARN_ALWAYS, "Excess arguments (%u) - using only %u", Info->ParamCount, ACPI_METHOD_NUM_ARGS)); Info->ParamCount = ACPI_METHOD_NUM_ARGS; } } /* * For predefined names: Check that the declared argument count * matches the ACPI spec -- otherwise this is a BIOS error. */ AcpiNsCheckAcpiCompliance (Info->FullPathname, Info->Node, Info->Predefined); /* * For all names: Check that the incoming argument count for * this method/object matches the actual ASL/AML definition. */ AcpiNsCheckArgumentCount (Info->FullPathname, Info->Node, Info->ParamCount, Info->Predefined); /* For predefined names: Typecheck all incoming arguments */ AcpiNsCheckArgumentTypes (Info); /* * Three major evaluation cases: * * 1) Object types that cannot be evaluated by definition * 2) The object is a control method -- execute it * 3) The object is not a method -- just return it's current value */ switch (AcpiNsGetType (Info->Node)) { case ACPI_TYPE_DEVICE: case ACPI_TYPE_EVENT: case ACPI_TYPE_MUTEX: case ACPI_TYPE_REGION: case ACPI_TYPE_THERMAL: case ACPI_TYPE_LOCAL_SCOPE: /* * 1) Disallow evaluation of certain object types. For these, * object evaluation is undefined and not supported. */ ACPI_ERROR ((AE_INFO, "%s: Evaluation of object type [%s] is not supported", Info->FullPathname, AcpiUtGetTypeName (Info->Node->Type))); Status = AE_TYPE; goto Cleanup; case ACPI_TYPE_METHOD: /* * 2) Object is a control method - execute it */ /* Verify that there is a method object associated with this node */ if (!Info->ObjDesc) { ACPI_ERROR ((AE_INFO, "%s: Method has no attached sub-object", Info->FullPathname)); Status = AE_NULL_OBJECT; goto Cleanup; } ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "**** Execute method [%s] at AML address %p length %X\n", Info->FullPathname, Info->ObjDesc->Method.AmlStart + 1, Info->ObjDesc->Method.AmlLength - 1)); /* * Any namespace deletion must acquire both the namespace and * interpreter locks to ensure that no thread is using the portion of * the namespace that is being deleted. * * Execute the method via the interpreter. The interpreter is locked * here before calling into the AML parser */ AcpiExEnterInterpreter (); Status = AcpiPsExecuteMethod (Info); AcpiExExitInterpreter (); break; default: /* * 3) All other non-method objects -- get the current object value */ /* * Some objects require additional resolution steps (e.g., the Node * may be a field that must be read, etc.) -- we can't just grab * the object out of the node. * * Use ResolveNodeToValue() to get the associated value. * * NOTE: we can get away with passing in NULL for a walk state because * the Node is guaranteed to not be a reference to either a method * local or a method argument (because this interface is never called * from a running method.) * * Even though we do not directly invoke the interpreter for object * resolution, we must lock it because we could access an OpRegion. * The OpRegion access code assumes that the interpreter is locked. */ AcpiExEnterInterpreter (); /* TBD: ResolveNodeToValue has a strange interface, fix */ Info->ReturnObject = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, Info->Node); Status = AcpiExResolveNodeToValue (ACPI_CAST_INDIRECT_PTR ( ACPI_NAMESPACE_NODE, &Info->ReturnObject), NULL); AcpiExExitInterpreter (); if (ACPI_FAILURE (Status)) { goto Cleanup; } ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "Returned object %p [%s]\n", Info->ReturnObject, AcpiUtGetObjectTypeName (Info->ReturnObject))); Status = AE_CTRL_RETURN_VALUE; /* Always has a "return value" */ break; } /* * For predefined names, check the return value against the ACPI * specification. Some incorrect return value types are repaired. */ (void) AcpiNsCheckReturnValue (Info->Node, Info, Info->ParamCount, Status, &Info->ReturnObject); /* Check if there is a return value that must be dealt with */ if (Status == AE_CTRL_RETURN_VALUE) { /* If caller does not want the return value, delete it */ if (Info->Flags & ACPI_IGNORE_RETURN_VALUE) { AcpiUtRemoveReference (Info->ReturnObject); Info->ReturnObject = NULL; } /* Map AE_CTRL_RETURN_VALUE to AE_OK, we are done with it */ Status = AE_OK; } ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "*** Completed evaluation of object %s ***\n", Info->RelativePathname)); Cleanup: /* * Namespace was unlocked by the handling AcpiNs* function, so we * just free the pathname and return */ ACPI_FREE (Info->FullPathname); Info->FullPathname = NULL; return_ACPI_STATUS (Status); }
static void AcpiNsExecModuleCode ( ACPI_OPERAND_OBJECT *MethodObj, ACPI_EVALUATE_INFO *Info) { ACPI_OPERAND_OBJECT *ParentObj; ACPI_NAMESPACE_NODE *ParentNode; ACPI_OBJECT_TYPE Type; ACPI_STATUS Status; ACPI_FUNCTION_TRACE (NsExecModuleCode); /* * Get the parent node. We cheat by using the NextObject field * of the method object descriptor. */ ParentNode = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, MethodObj->Method.NextObject); Type = AcpiNsGetType (ParentNode); /* * Get the region handler and save it in the method object. We may need * this if an operation region declaration causes a _REG method to be run. * * We can't do this in AcpiPsLinkModuleCode because * AcpiGbl_RootNode->Object is NULL at PASS1. */ if ((Type == ACPI_TYPE_DEVICE) && ParentNode->Object) { MethodObj->Method.Dispatch.Handler = ParentNode->Object->Device.Handler; } /* Must clear NextObject (AcpiNsAttachObject needs the field) */ MethodObj->Method.NextObject = NULL; /* Initialize the evaluation information block */ ACPI_MEMSET (Info, 0, sizeof (ACPI_EVALUATE_INFO)); Info->PrefixNode = ParentNode; /* * Get the currently attached parent object. Add a reference, because the * ref count will be decreased when the method object is installed to * the parent node. */ ParentObj = AcpiNsGetAttachedObject (ParentNode); if (ParentObj) { AcpiUtAddReference (ParentObj); } /* Install the method (module-level code) in the parent node */ Status = AcpiNsAttachObject (ParentNode, MethodObj, ACPI_TYPE_METHOD); if (ACPI_FAILURE (Status)) { goto Exit; } /* Execute the parent node as a control method */ Status = AcpiNsEvaluate (Info); ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "Executed module-level code at %p\n", MethodObj->Method.AmlStart)); /* Delete a possible implicit return value (in slack mode) */ if (Info->ReturnObject) { AcpiUtRemoveReference (Info->ReturnObject); } /* Detach the temporary method object */ AcpiNsDetachObject (ParentNode); /* Restore the original parent object */ if (ParentObj) { Status = AcpiNsAttachObject (ParentNode, ParentObj, Type); } else { ParentNode->Type = (UINT8) Type; } Exit: if (ParentObj) { AcpiUtRemoveReference (ParentObj); } return_VOID; }
ACPI_STATUS AcpiEvInstallSpaceHandler ( ACPI_NAMESPACE_NODE *Node, ACPI_ADR_SPACE_TYPE SpaceId, ACPI_ADR_SPACE_HANDLER Handler, ACPI_ADR_SPACE_SETUP Setup, void *Context) { ACPI_OPERAND_OBJECT *ObjDesc; ACPI_OPERAND_OBJECT *HandlerObj; ACPI_STATUS Status = AE_OK; ACPI_OBJECT_TYPE Type; UINT8 Flags = 0; ACPI_FUNCTION_TRACE (EvInstallSpaceHandler); /* * This registration is valid for only the types below and the root. * The root node is where the default handlers get installed. */ if ((Node->Type != ACPI_TYPE_DEVICE) && (Node->Type != ACPI_TYPE_PROCESSOR) && (Node->Type != ACPI_TYPE_THERMAL) && (Node != AcpiGbl_RootNode)) { Status = AE_BAD_PARAMETER; goto UnlockAndExit; } if (Handler == ACPI_DEFAULT_HANDLER) { Flags = ACPI_ADDR_HANDLER_DEFAULT_INSTALLED; switch (SpaceId) { case ACPI_ADR_SPACE_SYSTEM_MEMORY: Handler = AcpiExSystemMemorySpaceHandler; Setup = AcpiEvSystemMemoryRegionSetup; break; case ACPI_ADR_SPACE_SYSTEM_IO: Handler = AcpiExSystemIoSpaceHandler; Setup = AcpiEvIoSpaceRegionSetup; break; case ACPI_ADR_SPACE_PCI_CONFIG: Handler = AcpiExPciConfigSpaceHandler; Setup = AcpiEvPciConfigRegionSetup; break; case ACPI_ADR_SPACE_CMOS: Handler = AcpiExCmosSpaceHandler; Setup = AcpiEvCmosRegionSetup; break; case ACPI_ADR_SPACE_PCI_BAR_TARGET: Handler = AcpiExPciBarSpaceHandler; Setup = AcpiEvPciBarRegionSetup; break; case ACPI_ADR_SPACE_DATA_TABLE: Handler = AcpiExDataTableSpaceHandler; Setup = NULL; break; default: Status = AE_BAD_PARAMETER; goto UnlockAndExit; } } /* If the caller hasn't specified a setup routine, use the default */ if (!Setup) { Setup = AcpiEvDefaultRegionSetup; } /* Check for an existing internal object */ ObjDesc = AcpiNsGetAttachedObject (Node); if (ObjDesc) { /* * The attached device object already exists. Now make sure * the handler is not already installed. */ HandlerObj = AcpiEvFindRegionHandler (SpaceId, ObjDesc->CommonNotify.Handler); if (HandlerObj) { if (HandlerObj->AddressSpace.Handler == Handler) { /* * It is (relatively) OK to attempt to install the SAME * handler twice. This can easily happen with the * PCI_Config space. */ Status = AE_SAME_HANDLER; goto UnlockAndExit; } else { /* A handler is already installed */ Status = AE_ALREADY_EXISTS; } goto UnlockAndExit; } } else { ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, "Creating object on Device %p while installing handler\n", Node)); /* ObjDesc does not exist, create one */ if (Node->Type == ACPI_TYPE_ANY) { Type = ACPI_TYPE_DEVICE; } else { Type = Node->Type; } ObjDesc = AcpiUtCreateInternalObject (Type); if (!ObjDesc) { Status = AE_NO_MEMORY; goto UnlockAndExit; } /* Init new descriptor */ ObjDesc->Common.Type = (UINT8) Type; /* Attach the new object to the Node */ Status = AcpiNsAttachObject (Node, ObjDesc, Type); /* Remove local reference to the object */ AcpiUtRemoveReference (ObjDesc); if (ACPI_FAILURE (Status)) { goto UnlockAndExit; } } ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, "Installing address handler for region %s(%X) " "on Device %4.4s %p(%p)\n", AcpiUtGetRegionName (SpaceId), SpaceId, AcpiUtGetNodeName (Node), Node, ObjDesc)); /* * Install the handler * * At this point there is no existing handler. Just allocate the object * for the handler and link it into the list. */ HandlerObj = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_ADDRESS_HANDLER); if (!HandlerObj) { Status = AE_NO_MEMORY; goto UnlockAndExit; } /* Init handler obj */ HandlerObj->AddressSpace.SpaceId = (UINT8) SpaceId; HandlerObj->AddressSpace.HandlerFlags = Flags; HandlerObj->AddressSpace.RegionList = NULL; HandlerObj->AddressSpace.Node = Node; HandlerObj->AddressSpace.Handler = Handler; HandlerObj->AddressSpace.Context = Context; HandlerObj->AddressSpace.Setup = Setup; /* Install at head of Device.AddressSpace list */ HandlerObj->AddressSpace.Next = ObjDesc->CommonNotify.Handler; /* * The Device object is the first reference on the HandlerObj. * Each region that uses the handler adds a reference. */ ObjDesc->CommonNotify.Handler = HandlerObj; /* * Walk the namespace finding all of the regions this handler will * manage. * * Start at the device and search the branch toward the leaf nodes * until either the leaf is encountered or a device is detected that * has an address handler of the same type. * * In either case, back up and search down the remainder of the branch */ Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, Node, ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, AcpiEvInstallHandler, NULL, HandlerObj, NULL); UnlockAndExit: return_ACPI_STATUS (Status); }
static ACPI_STATUS AcpiEvInstallHandler ( ACPI_HANDLE ObjHandle, UINT32 Level, void *Context, void **ReturnValue) { ACPI_OPERAND_OBJECT *HandlerObj; ACPI_OPERAND_OBJECT *NextHandlerObj; ACPI_OPERAND_OBJECT *ObjDesc; ACPI_NAMESPACE_NODE *Node; ACPI_STATUS Status; ACPI_FUNCTION_NAME (EvInstallHandler); HandlerObj = (ACPI_OPERAND_OBJECT *) Context; /* Parameter validation */ if (!HandlerObj) { return (AE_OK); } /* Convert and validate the device handle */ Node = AcpiNsValidateHandle (ObjHandle); if (!Node) { return (AE_BAD_PARAMETER); } /* * We only care about regions and objects that are allowed to have * address space handlers */ if ((Node->Type != ACPI_TYPE_DEVICE) && (Node->Type != ACPI_TYPE_REGION) && (Node != AcpiGbl_RootNode)) { return (AE_OK); } /* Check for an existing internal object */ ObjDesc = AcpiNsGetAttachedObject (Node); if (!ObjDesc) { /* No object, just exit */ return (AE_OK); } /* Devices are handled different than regions */ if (ObjDesc->Common.Type == ACPI_TYPE_DEVICE) { /* Check if this Device already has a handler for this address space */ NextHandlerObj = AcpiEvFindRegionHandler ( HandlerObj->AddressSpace.SpaceId, ObjDesc->CommonNotify.Handler); if (NextHandlerObj) { /* Found a handler, is it for the same address space? */ ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, "Found handler for region [%s] in device %p(%p) handler %p\n", AcpiUtGetRegionName (HandlerObj->AddressSpace.SpaceId), ObjDesc, NextHandlerObj, HandlerObj)); /* * Since the object we found it on was a device, then it means * that someone has already installed a handler for the branch * of the namespace from this device on. Just bail out telling * the walk routine to not traverse this branch. This preserves * the scoping rule for handlers. */ return (AE_CTRL_DEPTH); } /* * As long as the device didn't have a handler for this space we * don't care about it. We just ignore it and proceed. */ return (AE_OK); } /* Object is a Region */ if (ObjDesc->Region.SpaceId != HandlerObj->AddressSpace.SpaceId) { /* This region is for a different address space, just ignore it */ return (AE_OK); } /* * Now we have a region and it is for the handler's address space type. * * First disconnect region for any previous handler (if any) */ AcpiEvDetachRegion (ObjDesc, FALSE); /* Connect the region to the new handler */ Status = AcpiEvAttachRegion (HandlerObj, ObjDesc, FALSE); return (Status); }
ACPI_STATUS AcpiNsDumpOneObject ( ACPI_HANDLE ObjHandle, UINT32 Level, void *Context, void **ReturnValue) { ACPI_WALK_INFO *Info = (ACPI_WALK_INFO *) Context; ACPI_NAMESPACE_NODE *ThisNode; ACPI_OPERAND_OBJECT *ObjDesc = NULL; ACPI_OBJECT_TYPE ObjType; ACPI_OBJECT_TYPE Type; UINT32 BytesToDump; UINT32 DbgLevel; UINT32 i; ACPI_FUNCTION_NAME (NsDumpOneObject); /* Is output enabled? */ if (!(AcpiDbgLevel & Info->DebugLevel)) { return (AE_OK); } if (!ObjHandle) { ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Null object handle\n")); return (AE_OK); } ThisNode = AcpiNsValidateHandle (ObjHandle); if (!ThisNode) { ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Invalid object handle %p\n", ObjHandle)); return (AE_OK); } Type = ThisNode->Type; /* Check if the owner matches */ if ((Info->OwnerId != ACPI_OWNER_ID_MAX) && (Info->OwnerId != ThisNode->OwnerId)) { return (AE_OK); } if (!(Info->DisplayType & ACPI_DISPLAY_SHORT)) { /* Indent the object according to the level */ AcpiOsPrintf ("%2d%*s", (UINT32) Level - 1, (int) Level * 2, " "); /* Check the node type and name */ if (Type > ACPI_TYPE_LOCAL_MAX) { ACPI_WARNING ((AE_INFO, "Invalid ACPI Object Type 0x%08X", Type)); } AcpiOsPrintf ("%4.4s", AcpiUtGetNodeName (ThisNode)); } /* Now we can print out the pertinent information */ AcpiOsPrintf (" %-12s %p %2.2X ", AcpiUtGetTypeName (Type), ThisNode, ThisNode->OwnerId); DbgLevel = AcpiDbgLevel; AcpiDbgLevel = 0; ObjDesc = AcpiNsGetAttachedObject (ThisNode); AcpiDbgLevel = DbgLevel; /* Temp nodes are those nodes created by a control method */ if (ThisNode->Flags & ANOBJ_TEMPORARY) { AcpiOsPrintf ("(T) "); } switch (Info->DisplayType & ACPI_DISPLAY_MASK) { case ACPI_DISPLAY_SUMMARY: if (!ObjDesc) { /* No attached object. Some types should always have an object */ switch (Type) { case ACPI_TYPE_INTEGER: case ACPI_TYPE_PACKAGE: case ACPI_TYPE_BUFFER: case ACPI_TYPE_STRING: case ACPI_TYPE_METHOD: AcpiOsPrintf ("<No attached object>"); break; default: break; } AcpiOsPrintf ("\n"); return (AE_OK); } switch (Type) { case ACPI_TYPE_PROCESSOR: AcpiOsPrintf ("ID %02X Len %02X Addr %8.8X%8.8X\n", ObjDesc->Processor.ProcId, ObjDesc->Processor.Length, ACPI_FORMAT_UINT64 (ObjDesc->Processor.Address)); break; case ACPI_TYPE_DEVICE: AcpiOsPrintf ("Notify Object: %p\n", ObjDesc); break; case ACPI_TYPE_METHOD: AcpiOsPrintf ("Args %X Len %.4X Aml %p\n", (UINT32) ObjDesc->Method.ParamCount, ObjDesc->Method.AmlLength, ObjDesc->Method.AmlStart); break; case ACPI_TYPE_INTEGER: AcpiOsPrintf ("= %8.8X%8.8X\n", ACPI_FORMAT_UINT64 (ObjDesc->Integer.Value)); break; case ACPI_TYPE_PACKAGE: if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID) { AcpiOsPrintf ("Elements %.2X\n", ObjDesc->Package.Count); } else { AcpiOsPrintf ("[Length not yet evaluated]\n"); } break; case ACPI_TYPE_BUFFER: if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID) { AcpiOsPrintf ("Len %.2X", ObjDesc->Buffer.Length); /* Dump some of the buffer */ if (ObjDesc->Buffer.Length > 0) { AcpiOsPrintf (" ="); for (i = 0; (i < ObjDesc->Buffer.Length && i < 12); i++) { AcpiOsPrintf (" %.2hX", ObjDesc->Buffer.Pointer[i]); } } AcpiOsPrintf ("\n"); } else { AcpiOsPrintf ("[Length not yet evaluated]\n"); } break; case ACPI_TYPE_STRING: AcpiOsPrintf ("Len %.2X ", ObjDesc->String.Length); AcpiUtPrintString (ObjDesc->String.Pointer, 80); AcpiOsPrintf ("\n"); break; case ACPI_TYPE_REGION: AcpiOsPrintf ("[%s]", AcpiUtGetRegionName (ObjDesc->Region.SpaceId)); if (ObjDesc->Region.Flags & AOPOBJ_DATA_VALID) { AcpiOsPrintf (" Addr %8.8X%8.8X Len %.4X\n", ACPI_FORMAT_UINT64 (ObjDesc->Region.Address), ObjDesc->Region.Length); } else { AcpiOsPrintf (" [Address/Length not yet evaluated]\n"); } break; case ACPI_TYPE_LOCAL_REFERENCE: AcpiOsPrintf ("[%s]\n", AcpiUtGetReferenceName (ObjDesc)); break; case ACPI_TYPE_BUFFER_FIELD: if (ObjDesc->BufferField.BufferObj && ObjDesc->BufferField.BufferObj->Buffer.Node) { AcpiOsPrintf ("Buf [%4.4s]", AcpiUtGetNodeName ( ObjDesc->BufferField.BufferObj->Buffer.Node)); } break; case ACPI_TYPE_LOCAL_REGION_FIELD: AcpiOsPrintf ("Rgn [%4.4s]", AcpiUtGetNodeName ( ObjDesc->CommonField.RegionObj->Region.Node)); break; case ACPI_TYPE_LOCAL_BANK_FIELD: AcpiOsPrintf ("Rgn [%4.4s] Bnk [%4.4s]", AcpiUtGetNodeName ( ObjDesc->CommonField.RegionObj->Region.Node), AcpiUtGetNodeName ( ObjDesc->BankField.BankObj->CommonField.Node)); break; case ACPI_TYPE_LOCAL_INDEX_FIELD: AcpiOsPrintf ("Idx [%4.4s] Dat [%4.4s]", AcpiUtGetNodeName ( ObjDesc->IndexField.IndexObj->CommonField.Node), AcpiUtGetNodeName ( ObjDesc->IndexField.DataObj->CommonField.Node)); break; case ACPI_TYPE_LOCAL_ALIAS: case ACPI_TYPE_LOCAL_METHOD_ALIAS: AcpiOsPrintf ("Target %4.4s (%p)\n", AcpiUtGetNodeName (ObjDesc), ObjDesc); break; default: AcpiOsPrintf ("Object %p\n", ObjDesc); break; } /* Common field handling */ switch (Type) { case ACPI_TYPE_BUFFER_FIELD: case ACPI_TYPE_LOCAL_REGION_FIELD: case ACPI_TYPE_LOCAL_BANK_FIELD: case ACPI_TYPE_LOCAL_INDEX_FIELD: AcpiOsPrintf (" Off %.3X Len %.2X Acc %.2hd\n", (ObjDesc->CommonField.BaseByteOffset * 8) + ObjDesc->CommonField.StartFieldBitOffset, ObjDesc->CommonField.BitLength, ObjDesc->CommonField.AccessByteWidth); break; default: break; } break; case ACPI_DISPLAY_OBJECTS: AcpiOsPrintf ("O:%p", ObjDesc); if (!ObjDesc) { /* No attached object, we are done */ AcpiOsPrintf ("\n"); return (AE_OK); } AcpiOsPrintf ("(R%u)", ObjDesc->Common.ReferenceCount); switch (Type) { case ACPI_TYPE_METHOD: /* Name is a Method and its AML offset/length are set */ AcpiOsPrintf (" M:%p-%X\n", ObjDesc->Method.AmlStart, ObjDesc->Method.AmlLength); break; case ACPI_TYPE_INTEGER: AcpiOsPrintf (" I:%8.8X8.8%X\n", ACPI_FORMAT_UINT64 (ObjDesc->Integer.Value)); break; case ACPI_TYPE_STRING: AcpiOsPrintf (" S:%p-%X\n", ObjDesc->String.Pointer, ObjDesc->String.Length); break; case ACPI_TYPE_BUFFER: AcpiOsPrintf (" B:%p-%X\n", ObjDesc->Buffer.Pointer, ObjDesc->Buffer.Length); break; default: AcpiOsPrintf ("\n"); break; } break; default: AcpiOsPrintf ("\n"); break; } /* If debug turned off, done */ if (!(AcpiDbgLevel & ACPI_LV_VALUES)) { return (AE_OK); } /* If there is an attached object, display it */ DbgLevel = AcpiDbgLevel; AcpiDbgLevel = 0; ObjDesc = AcpiNsGetAttachedObject (ThisNode); AcpiDbgLevel = DbgLevel; /* Dump attached objects */ while (ObjDesc) { ObjType = ACPI_TYPE_INVALID; AcpiOsPrintf ("Attached Object %p: ", ObjDesc); /* Decode the type of attached object and dump the contents */ switch (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc)) { case ACPI_DESC_TYPE_NAMED: AcpiOsPrintf ("(Ptr to Node)\n"); BytesToDump = sizeof (ACPI_NAMESPACE_NODE); ACPI_DUMP_BUFFER (ObjDesc, BytesToDump); break; case ACPI_DESC_TYPE_OPERAND: ObjType = ObjDesc->Common.Type; if (ObjType > ACPI_TYPE_LOCAL_MAX) { AcpiOsPrintf ( "(Pointer to ACPI Object type %.2X [UNKNOWN])\n", ObjType); BytesToDump = 32; } else { AcpiOsPrintf ( "(Pointer to ACPI Object type %.2X [%s])\n", ObjType, AcpiUtGetTypeName (ObjType)); BytesToDump = sizeof (ACPI_OPERAND_OBJECT); } ACPI_DUMP_BUFFER (ObjDesc, BytesToDump); break; default: break; } /* If value is NOT an internal object, we are done */ if (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc) != ACPI_DESC_TYPE_OPERAND) { goto Cleanup; } /* Valid object, get the pointer to next level, if any */ switch (ObjType) { case ACPI_TYPE_BUFFER: case ACPI_TYPE_STRING: /* * NOTE: takes advantage of common fields between string/buffer */ BytesToDump = ObjDesc->String.Length; ObjDesc = (void *) ObjDesc->String.Pointer; AcpiOsPrintf ("(Buffer/String pointer %p length %X)\n", ObjDesc, BytesToDump); ACPI_DUMP_BUFFER (ObjDesc, BytesToDump); goto Cleanup; case ACPI_TYPE_BUFFER_FIELD: ObjDesc = (ACPI_OPERAND_OBJECT *) ObjDesc->BufferField.BufferObj; break; case ACPI_TYPE_PACKAGE: ObjDesc = (void *) ObjDesc->Package.Elements; break; case ACPI_TYPE_METHOD: ObjDesc = (void *) ObjDesc->Method.AmlStart; break; case ACPI_TYPE_LOCAL_REGION_FIELD: ObjDesc = (void *) ObjDesc->Field.RegionObj; break; case ACPI_TYPE_LOCAL_BANK_FIELD: ObjDesc = (void *) ObjDesc->BankField.RegionObj; break; case ACPI_TYPE_LOCAL_INDEX_FIELD: ObjDesc = (void *) ObjDesc->IndexField.IndexObj; break; default: goto Cleanup; } ObjType = ACPI_TYPE_INVALID; /* Terminate loop after next pass */ } Cleanup: AcpiOsPrintf ("\n"); return (AE_OK); }
ACPI_STATUS AcpiDsEvalTableRegionOperands ( ACPI_WALK_STATE *WalkState, ACPI_PARSE_OBJECT *Op) { ACPI_STATUS Status; ACPI_OPERAND_OBJECT *ObjDesc; ACPI_OPERAND_OBJECT **Operand; ACPI_NAMESPACE_NODE *Node; ACPI_PARSE_OBJECT *NextOp; UINT32 TableIndex; ACPI_TABLE_HEADER *Table; ACPI_FUNCTION_TRACE_PTR (DsEvalTableRegionOperands, Op); /* * This is where we evaluate the Signature string, OemId string, * and OemTableId string of the Data Table Region declaration */ Node = Op->Common.Node; /* NextOp points to Signature string op */ NextOp = Op->Common.Value.Arg; /* * Evaluate/create the Signature string, OemId string, * and OemTableId string operands */ Status = AcpiDsCreateOperands (WalkState, NextOp); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* * Resolve the Signature string, OemId string, * and OemTableId string operands */ Status = AcpiExResolveOperands (Op->Common.AmlOpcode, ACPI_WALK_OPERANDS, WalkState); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } Operand = &WalkState->Operands[0]; /* Find the ACPI table */ Status = AcpiTbFindTable (Operand[0]->String.Pointer, Operand[1]->String.Pointer, Operand[2]->String.Pointer, &TableIndex); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } AcpiUtRemoveReference (Operand[0]); AcpiUtRemoveReference (Operand[1]); AcpiUtRemoveReference (Operand[2]); Status = AcpiGetTableByIndex (TableIndex, &Table); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } ObjDesc = AcpiNsGetAttachedObject (Node); if (!ObjDesc) { return_ACPI_STATUS (AE_NOT_EXIST); } ObjDesc->Region.Address = (ACPI_PHYSICAL_ADDRESS) ACPI_TO_INTEGER (Table); ObjDesc->Region.Length = Table->Length; ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n", ObjDesc, ACPI_FORMAT_NATIVE_UINT (ObjDesc->Region.Address), ObjDesc->Region.Length)); /* Now the address and length are valid for this opregion */ ObjDesc->Region.Flags |= AOPOBJ_DATA_VALID; return_ACPI_STATUS (Status); }
ACPI_STATUS AcpiRemoveNotifyHandler ( ACPI_HANDLE Device, UINT32 HandlerType, ACPI_NOTIFY_HANDLER Handler) { ACPI_OPERAND_OBJECT *NotifyObj; ACPI_OPERAND_OBJECT *ObjDesc; ACPI_NAMESPACE_NODE *Node; ACPI_STATUS Status; ACPI_FUNCTION_TRACE (AcpiRemoveNotifyHandler); /* Parameter validation */ if ((!Device) || (!Handler) || (HandlerType > ACPI_MAX_NOTIFY_HANDLER_TYPE)) { return_ACPI_STATUS (AE_BAD_PARAMETER); } Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* Convert and validate the device handle */ Node = AcpiNsMapHandleToNode (Device); if (!Node) { Status = AE_BAD_PARAMETER; goto UnlockAndExit; } /* Root Object */ if (Device == ACPI_ROOT_OBJECT) { ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Removing notify handler for namespace root object\n")); if (((HandlerType & ACPI_SYSTEM_NOTIFY) && !AcpiGbl_SystemNotify.Handler) || ((HandlerType & ACPI_DEVICE_NOTIFY) && !AcpiGbl_DeviceNotify.Handler)) { Status = AE_NOT_EXIST; goto UnlockAndExit; } if (HandlerType & ACPI_SYSTEM_NOTIFY) { AcpiGbl_SystemNotify.Node = NULL; AcpiGbl_SystemNotify.Handler = NULL; AcpiGbl_SystemNotify.Context = NULL; } if (HandlerType & ACPI_DEVICE_NOTIFY) { AcpiGbl_DeviceNotify.Node = NULL; AcpiGbl_DeviceNotify.Handler = NULL; AcpiGbl_DeviceNotify.Context = NULL; } } /* All Other Objects */ else { /* Notifies allowed on this object? */ if (!AcpiEvIsNotifyObject (Node)) { Status = AE_TYPE; goto UnlockAndExit; } /* Check for an existing internal object */ ObjDesc = AcpiNsGetAttachedObject (Node); if (!ObjDesc) { Status = AE_NOT_EXIST; goto UnlockAndExit; } /* Object exists - make sure there's an existing handler */ if (HandlerType & ACPI_SYSTEM_NOTIFY) { NotifyObj = ObjDesc->CommonNotify.SystemNotify; if (!NotifyObj) { Status = AE_NOT_EXIST; goto UnlockAndExit; } if (NotifyObj->Notify.Handler != Handler) { Status = AE_BAD_PARAMETER; goto UnlockAndExit; } /* Remove the handler */ ObjDesc->CommonNotify.SystemNotify = NULL; AcpiUtRemoveReference (NotifyObj); } if (HandlerType & ACPI_DEVICE_NOTIFY) { NotifyObj = ObjDesc->CommonNotify.DeviceNotify; if (!NotifyObj) { Status = AE_NOT_EXIST; goto UnlockAndExit; } if (NotifyObj->Notify.Handler != Handler) { Status = AE_BAD_PARAMETER; goto UnlockAndExit; } /* Remove the handler */ ObjDesc->CommonNotify.DeviceNotify = NULL; AcpiUtRemoveReference (NotifyObj); } } UnlockAndExit: (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); return_ACPI_STATUS (Status); }
ACPI_STATUS AcpiDsEvalBankFieldOperands ( ACPI_WALK_STATE *WalkState, ACPI_PARSE_OBJECT *Op) { ACPI_STATUS Status; ACPI_OPERAND_OBJECT *ObjDesc; ACPI_OPERAND_OBJECT *OperandDesc; ACPI_NAMESPACE_NODE *Node; ACPI_PARSE_OBJECT *NextOp; ACPI_PARSE_OBJECT *Arg; ACPI_FUNCTION_TRACE_PTR (DsEvalBankFieldOperands, Op); /* * This is where we evaluate the BankValue field of the * BankField declaration */ /* NextOp points to the op that holds the Region */ NextOp = Op->Common.Value.Arg; /* NextOp points to the op that holds the Bank Register */ NextOp = NextOp->Common.Next; /* NextOp points to the op that holds the Bank Value */ NextOp = NextOp->Common.Next; /* * Set proper index into operand stack for AcpiDsObjStackPush * invoked inside AcpiDsCreateOperand. * * We use WalkState->Operands[0] to store the evaluated BankValue */ WalkState->OperandIndex = 0; Status = AcpiDsCreateOperand (WalkState, NextOp, 0); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } Status = AcpiExResolveToValue (&WalkState->Operands[0], WalkState); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } ACPI_DUMP_OPERANDS (ACPI_WALK_OPERANDS, AcpiPsGetOpcodeName (Op->Common.AmlOpcode), 1); /* * Get the BankValue operand and save it * (at Top of stack) */ OperandDesc = WalkState->Operands[0]; /* Arg points to the start Bank Field */ Arg = AcpiPsGetArg (Op, 4); while (Arg) { /* Ignore OFFSET and ACCESSAS terms here */ if (Arg->Common.AmlOpcode == AML_INT_NAMEDFIELD_OP) { Node = Arg->Common.Node; ObjDesc = AcpiNsGetAttachedObject (Node); if (!ObjDesc) { return_ACPI_STATUS (AE_NOT_EXIST); } ObjDesc->BankField.Value = (UINT32) OperandDesc->Integer.Value; } /* Move to next field in the list */ Arg = Arg->Common.Next; } AcpiUtRemoveReference (OperandDesc); return_ACPI_STATUS (Status); }
ACPI_STATUS AcpiEvInitializeRegion ( ACPI_OPERAND_OBJECT *RegionObj, BOOLEAN AcpiNsLocked) { ACPI_OPERAND_OBJECT *HandlerObj; ACPI_OPERAND_OBJECT *ObjDesc; ACPI_ADR_SPACE_TYPE SpaceId; ACPI_NAMESPACE_NODE *Node; ACPI_STATUS Status; ACPI_FUNCTION_TRACE_U32 (EvInitializeRegion, AcpiNsLocked); if (!RegionObj) { return_ACPI_STATUS (AE_BAD_PARAMETER); } if (RegionObj->Common.Flags & AOPOBJ_OBJECT_INITIALIZED) { return_ACPI_STATUS (AE_OK); } RegionObj->Common.Flags |= AOPOBJ_OBJECT_INITIALIZED; Node = RegionObj->Region.Node->Parent; SpaceId = RegionObj->Region.SpaceId; /* * The following loop depends upon the root Node having no parent * ie: AcpiGbl_RootNode->Parent being set to NULL */ while (Node) { /* Check to see if a handler exists */ HandlerObj = NULL; ObjDesc = AcpiNsGetAttachedObject (Node); if (ObjDesc) { /* Can only be a handler if the object exists */ switch (Node->Type) { case ACPI_TYPE_DEVICE: case ACPI_TYPE_PROCESSOR: case ACPI_TYPE_THERMAL: HandlerObj = ObjDesc->CommonNotify.Handler; break; case ACPI_TYPE_METHOD: /* * If we are executing module level code, the original * Node's object was replaced by this Method object and we * saved the handler in the method object. * * See AcpiNsExecModuleCode */ if (ObjDesc->Method.InfoFlags & ACPI_METHOD_MODULE_LEVEL) { HandlerObj = ObjDesc->Method.Dispatch.Handler; } break; default: /* Ignore other objects */ break; } HandlerObj = AcpiEvFindRegionHandler (SpaceId, HandlerObj); if (HandlerObj) { /* Found correct handler */ ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, "Found handler %p for region %p in obj %p\n", HandlerObj, RegionObj, ObjDesc)); Status = AcpiEvAttachRegion (HandlerObj, RegionObj, AcpiNsLocked); /* * Tell all users that this region is usable by * running the _REG method */ if (AcpiNsLocked) { Status = AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } } Status = AcpiEvExecuteRegMethod (RegionObj, ACPI_REG_CONNECT); if (AcpiNsLocked) { Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } } return_ACPI_STATUS (AE_OK); } } /* This node does not have the handler we need; Pop up one level */ Node = Node->Parent; } /* If we get here, there is no handler for this region */ ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, "No handler for RegionType %s(%X) (RegionObj %p)\n", AcpiUtGetRegionName (SpaceId), SpaceId, RegionObj)); return_ACPI_STATUS (AE_NOT_EXIST); }
void AcpiDbDisplayHandlers ( void) { ACPI_OPERAND_OBJECT *ObjDesc; ACPI_OPERAND_OBJECT *HandlerObj; ACPI_ADR_SPACE_TYPE SpaceId; UINT32 i; /* Operation region handlers */ AcpiOsPrintf ("\nOperation Region Handlers at the namespace root:\n"); ObjDesc = AcpiNsGetAttachedObject (AcpiGbl_RootNode); if (ObjDesc) { for (i = 0; i < ACPI_ARRAY_LENGTH (AcpiGbl_SpaceIdList); i++) { SpaceId = AcpiGbl_SpaceIdList[i]; HandlerObj = ObjDesc->Device.Handler; AcpiOsPrintf (ACPI_PREDEFINED_PREFIX, AcpiUtGetRegionName ((UINT8) SpaceId), SpaceId); while (HandlerObj) { if (AcpiGbl_SpaceIdList[i] == HandlerObj->AddressSpace.SpaceId) { AcpiOsPrintf (ACPI_HANDLER_PRESENT_STRING, (HandlerObj->AddressSpace.HandlerFlags & ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) ? "Default" : "User", HandlerObj->AddressSpace.Handler); goto FoundHandler; } HandlerObj = HandlerObj->AddressSpace.Next; } /* There is no handler for this SpaceId */ AcpiOsPrintf ("None\n"); FoundHandler:; } /* Find all handlers for user-defined SpaceIDs */ HandlerObj = ObjDesc->Device.Handler; while (HandlerObj) { if (HandlerObj->AddressSpace.SpaceId >= ACPI_USER_REGION_BEGIN) { AcpiOsPrintf (ACPI_PREDEFINED_PREFIX, "User-defined ID", HandlerObj->AddressSpace.SpaceId); AcpiOsPrintf (ACPI_HANDLER_PRESENT_STRING, (HandlerObj->AddressSpace.HandlerFlags & ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) ? "Default" : "User", HandlerObj->AddressSpace.Handler); } HandlerObj = HandlerObj->AddressSpace.Next; } } #if (!ACPI_REDUCED_HARDWARE) /* Fixed event handlers */ AcpiOsPrintf ("\nFixed Event Handlers:\n"); for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) { AcpiOsPrintf (ACPI_PREDEFINED_PREFIX, AcpiUtGetEventName (i), i); if (AcpiGbl_FixedEventHandlers[i].Handler) { AcpiOsPrintf (ACPI_HANDLER_PRESENT_STRING, "User", AcpiGbl_FixedEventHandlers[i].Handler); } else { AcpiOsPrintf (ACPI_HANDLER_NOT_PRESENT_STRING, "None"); } } #endif /* !ACPI_REDUCED_HARDWARE */ /* Miscellaneous global handlers */ AcpiOsPrintf ("\nMiscellaneous Global Handlers:\n"); for (i = 0; i < ACPI_ARRAY_LENGTH (AcpiGbl_HandlerList); i++) { AcpiOsPrintf (ACPI_HANDLER_NAME_STRING, AcpiGbl_HandlerList[i].Name); if (AcpiGbl_HandlerList[i].Handler) { AcpiOsPrintf (ACPI_HANDLER_PRESENT_STRING, "User", AcpiGbl_HandlerList[i].Handler); } else { AcpiOsPrintf (ACPI_HANDLER_NOT_PRESENT_STRING, "None"); } } /* Other handlers that are installed throughout the namespace */ AcpiOsPrintf ("\nOperation Region Handlers for specific devices:\n"); (void) AcpiWalkNamespace (ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, AcpiDbDisplayNonRootHandlers, NULL, NULL, NULL); }
ACPI_STATUS AcpiExStoreObjectToNode ( ACPI_OPERAND_OBJECT *SourceDesc, ACPI_NAMESPACE_NODE *Node, ACPI_WALK_STATE *WalkState, UINT8 ImplicitConversion) { ACPI_STATUS Status = AE_OK; ACPI_OPERAND_OBJECT *TargetDesc; ACPI_OPERAND_OBJECT *NewDesc; ACPI_OBJECT_TYPE TargetType; ACPI_FUNCTION_TRACE_PTR (ExStoreObjectToNode, SourceDesc); /* Get current type of the node, and object attached to Node */ TargetType = AcpiNsGetType (Node); TargetDesc = AcpiNsGetAttachedObject (Node); ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Storing %p (%s) to node %p (%s)\n", SourceDesc, AcpiUtGetObjectTypeName (SourceDesc), Node, AcpiUtGetTypeName (TargetType))); /* * Resolve the source object to an actual value * (If it is a reference object) */ Status = AcpiExResolveObject (&SourceDesc, TargetType, WalkState); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* Do the actual store operation */ switch (TargetType) { case ACPI_TYPE_INTEGER: case ACPI_TYPE_STRING: case ACPI_TYPE_BUFFER: /* * The simple data types all support implicit source operand * conversion before the store. */ if ((WalkState->Opcode == AML_COPY_OP) || !ImplicitConversion) { /* * However, CopyObject and Stores to ArgX do not perform * an implicit conversion, as per the ACPI specification. * A direct store is performed instead. */ Status = AcpiExStoreDirectToNode (SourceDesc, Node, WalkState); break; } /* Store with implicit source operand conversion support */ Status = AcpiExStoreObjectToObject (SourceDesc, TargetDesc, &NewDesc, WalkState); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } if (NewDesc != TargetDesc) { /* * Store the new NewDesc as the new value of the Name, and set * the Name's type to that of the value being stored in it. * SourceDesc reference count is incremented by AttachObject. * * Note: This may change the type of the node if an explicit * store has been performed such that the node/object type * has been changed. */ Status = AcpiNsAttachObject (Node, NewDesc, NewDesc->Common.Type); ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Store %s into %s via Convert/Attach\n", AcpiUtGetObjectTypeName (SourceDesc), AcpiUtGetObjectTypeName (NewDesc))); } break; case ACPI_TYPE_BUFFER_FIELD: case ACPI_TYPE_LOCAL_REGION_FIELD: case ACPI_TYPE_LOCAL_BANK_FIELD: case ACPI_TYPE_LOCAL_INDEX_FIELD: /* * For all fields, always write the source data to the target * field. Any required implicit source operand conversion is * performed in the function below as necessary. Note, field * objects must retain their original type permanently. */ Status = AcpiExWriteDataToField (SourceDesc, TargetDesc, &WalkState->ResultObj); break; default: /* * No conversions for all other types. Directly store a copy of * the source object. This is the ACPI spec-defined behavior for * the CopyObject operator. * * NOTE: For the Store operator, this is a departure from the * ACPI spec, which states "If conversion is impossible, abort * the running control method". Instead, this code implements * "If conversion is impossible, treat the Store operation as * a CopyObject". */ Status = AcpiExStoreDirectToNode (SourceDesc, Node, WalkState); break; } return_ACPI_STATUS (Status); }
ACPI_STATUS AcpiRemoveNotifyHandler ( ACPI_HANDLE Device, UINT32 HandlerType, ACPI_NOTIFY_HANDLER Handler) { ACPI_NAMESPACE_NODE *Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Device); ACPI_OPERAND_OBJECT *ObjDesc; ACPI_OPERAND_OBJECT *HandlerObj; ACPI_OPERAND_OBJECT *PreviousHandlerObj; ACPI_STATUS Status = AE_OK; UINT32 i; ACPI_FUNCTION_TRACE (AcpiRemoveNotifyHandler); /* Parameter validation */ if ((!Device) || (!Handler) || (!HandlerType) || (HandlerType > ACPI_MAX_NOTIFY_HANDLER_TYPE)) { return_ACPI_STATUS (AE_BAD_PARAMETER); } /* Root Object. Global handlers are removed here */ if (Device == ACPI_ROOT_OBJECT) { for (i = 0; i < ACPI_NUM_NOTIFY_TYPES; i++) { if (HandlerType & (i+1)) { Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } if (!AcpiGbl_GlobalNotify[i].Handler || (AcpiGbl_GlobalNotify[i].Handler != Handler)) { Status = AE_NOT_EXIST; goto UnlockAndExit; } ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Removing global notify handler\n")); AcpiGbl_GlobalNotify[i].Handler = NULL; AcpiGbl_GlobalNotify[i].Context = NULL; (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); /* Make sure all deferred notify tasks are completed */ AcpiOsWaitEventsComplete (); } } return_ACPI_STATUS (AE_OK); } /* All other objects: Are Notifies allowed on this object? */ if (!AcpiEvIsNotifyObject (Node)) { return_ACPI_STATUS (AE_TYPE); } /* Must have an existing internal object */ ObjDesc = AcpiNsGetAttachedObject (Node); if (!ObjDesc) { return_ACPI_STATUS (AE_NOT_EXIST); } /* Internal object exists. Find the handler and remove it */ for (i = 0; i < ACPI_NUM_NOTIFY_TYPES; i++) { if (HandlerType & (i+1)) { Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } HandlerObj = ObjDesc->CommonNotify.NotifyList[i]; PreviousHandlerObj = NULL; /* Attempt to find the handler in the handler list */ while (HandlerObj && (HandlerObj->Notify.Handler != Handler)) { PreviousHandlerObj = HandlerObj; HandlerObj = HandlerObj->Notify.Next[i]; } if (!HandlerObj) { Status = AE_NOT_EXIST; goto UnlockAndExit; } /* Remove the handler object from the list */ if (PreviousHandlerObj) /* Handler is not at the list head */ { PreviousHandlerObj->Notify.Next[i] = HandlerObj->Notify.Next[i]; } else /* Handler is at the list head */ { ObjDesc->CommonNotify.NotifyList[i] = HandlerObj->Notify.Next[i]; } (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); /* Make sure all deferred notify tasks are completed */ AcpiOsWaitEventsComplete (); AcpiUtRemoveReference (HandlerObj); } } return_ACPI_STATUS (Status); UnlockAndExit: (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); return_ACPI_STATUS (Status); }
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 * 3) 10/2007: Added method type to assist with Package construction. */ if ((EntryType == ACPI_TYPE_DEVICE) || (EntryType == ACPI_TYPE_THERMAL) || (EntryType == ACPI_TYPE_METHOD) || (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 (SourceDesc->Common.Type != 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 (SourceDesc->Common.Type != 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 (SourceDesc->Common.Type != 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 (SourceDesc->Common.Type != 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_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.Class) { case ACPI_REFCLASS_TABLE: /* This is a DdbHandle */ case ACPI_REFCLASS_REFOF: case ACPI_REFCLASS_INDEX: /* Return an additional reference to the object */ ObjDesc = SourceDesc; AcpiUtAddReference (ObjDesc); break; default: /* No named references are allowed here */ ACPI_ERROR ((AE_INFO, "Unsupported Reference type 0x%X", SourceDesc->Reference.Class)); return_ACPI_STATUS (AE_AML_OPERAND_TYPE); } break; default: /* Default case is for unknown types */ ACPI_ERROR ((AE_INFO, "Node %p - Unknown object type 0x%X", Node, EntryType)); return_ACPI_STATUS (AE_AML_OPERAND_TYPE); } /* switch (EntryType) */ /* Return the object descriptor */ *ObjectPtr = (void *) ObjDesc; return_ACPI_STATUS (Status); }
ACPI_STATUS AcpiDsInitAmlWalk ( ACPI_WALK_STATE *WalkState, ACPI_PARSE_OBJECT *Op, ACPI_NAMESPACE_NODE *MethodNode, UINT8 *AmlStart, UINT32 AmlLength, ACPI_EVALUATE_INFO *Info, UINT8 PassNumber) { ACPI_STATUS Status; ACPI_PARSE_STATE *ParserState = &WalkState->ParserState; ACPI_PARSE_OBJECT *ExtraOp; ACPI_FUNCTION_TRACE (DsInitAmlWalk); WalkState->ParserState.Aml = WalkState->ParserState.AmlStart = AmlStart; WalkState->ParserState.AmlEnd = WalkState->ParserState.PkgEnd = AmlStart + AmlLength; /* The NextOp of the NextWalk will be the beginning of the method */ WalkState->NextOp = NULL; WalkState->PassNumber = PassNumber; if (Info) { WalkState->Params = Info->Parameters; WalkState->CallerReturnDesc = &Info->ReturnObject; } Status = AcpiPsInitScope (&WalkState->ParserState, Op); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } if (MethodNode) { WalkState->ParserState.StartNode = MethodNode; WalkState->WalkType = ACPI_WALK_METHOD; WalkState->MethodNode = MethodNode; WalkState->MethodDesc = AcpiNsGetAttachedObject (MethodNode); /* Push start scope on scope stack and make it current */ Status = AcpiDsScopeStackPush (MethodNode, ACPI_TYPE_METHOD, WalkState); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* Init the method arguments */ Status = AcpiDsMethodDataInitArgs (WalkState->Params, ACPI_METHOD_NUM_ARGS, WalkState); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } } else { /* * Setup the current scope. * Find a Named Op that has a namespace node associated with it. * search upwards from this Op. Current scope is the first * Op with a namespace node. */ ExtraOp = ParserState->StartOp; while (ExtraOp && !ExtraOp->Common.Node) { ExtraOp = ExtraOp->Common.Parent; } if (!ExtraOp) { ParserState->StartNode = NULL; } else { ParserState->StartNode = ExtraOp->Common.Node; } if (ParserState->StartNode) { /* Push start scope on scope stack and make it current */ Status = AcpiDsScopeStackPush (ParserState->StartNode, ParserState->StartNode->Type, WalkState); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } } } Status = AcpiDsInitCallbacks (WalkState, PassNumber); return_ACPI_STATUS (Status); }
static ACPI_STATUS AcpiNsInitOneObject ( ACPI_HANDLE ObjHandle, UINT32 Level, void *Context, void **ReturnValue) { ACPI_OBJECT_TYPE Type; ACPI_STATUS Status = AE_OK; ACPI_INIT_WALK_INFO *Info = (ACPI_INIT_WALK_INFO *) Context; ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle; ACPI_OPERAND_OBJECT *ObjDesc; ACPI_FUNCTION_NAME (NsInitOneObject); Info->ObjectCount++; /* And even then, we are only interested in a few object types */ Type = AcpiNsGetType (ObjHandle); ObjDesc = AcpiNsGetAttachedObject (Node); if (!ObjDesc) { return (AE_OK); } /* Increment counters for object types we are looking for */ switch (Type) { case ACPI_TYPE_REGION: Info->OpRegionCount++; break; case ACPI_TYPE_BUFFER_FIELD: Info->FieldCount++; break; case ACPI_TYPE_LOCAL_BANK_FIELD: Info->FieldCount++; break; case ACPI_TYPE_BUFFER: Info->BufferCount++; break; case ACPI_TYPE_PACKAGE: Info->PackageCount++; break; default: /* No init required, just exit now */ return (AE_OK); } /* If the object is already initialized, nothing else to do */ if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID) { return (AE_OK); } /* Must lock the interpreter before executing AML code */ AcpiExEnterInterpreter (); /* * Each of these types can contain executable AML code within the * declaration. */ switch (Type) { case ACPI_TYPE_REGION: Info->OpRegionInit++; Status = AcpiDsGetRegionArguments (ObjDesc); break; case ACPI_TYPE_BUFFER_FIELD: Info->FieldInit++; Status = AcpiDsGetBufferFieldArguments (ObjDesc); break; case ACPI_TYPE_LOCAL_BANK_FIELD: Info->FieldInit++; Status = AcpiDsGetBankFieldArguments (ObjDesc); break; case ACPI_TYPE_BUFFER: Info->BufferInit++; Status = AcpiDsGetBufferArguments (ObjDesc); break; case ACPI_TYPE_PACKAGE: Info->PackageInit++; Status = AcpiDsGetPackageArguments (ObjDesc); break; default: /* No other types can get here */ break; } if (ACPI_FAILURE (Status)) { ACPI_EXCEPTION ((AE_INFO, Status, "Could not execute arguments for [%4.4s] (%s)", AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Type))); } /* * We ignore errors from above, and always return OK, since we don't want * to abort the walk on any single error. */ AcpiExExitInterpreter (); return (AE_OK); }
ACPI_STATUS AcpiDsStoreObjectToLocal ( UINT8 Type, UINT32 Index, ACPI_OPERAND_OBJECT *ObjDesc, ACPI_WALK_STATE *WalkState) { ACPI_STATUS Status; ACPI_NAMESPACE_NODE *Node; ACPI_OPERAND_OBJECT *CurrentObjDesc; ACPI_OPERAND_OBJECT *NewObjDesc; ACPI_FUNCTION_TRACE (DsStoreObjectToLocal); ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Type=%2.2X Index=%u Obj=%p\n", Type, Index, ObjDesc)); /* Parameter validation */ if (!ObjDesc) { return_ACPI_STATUS (AE_BAD_PARAMETER); } /* Get the namespace node for the arg/local */ Status = AcpiDsMethodDataGetNode (Type, Index, WalkState, &Node); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } CurrentObjDesc = AcpiNsGetAttachedObject (Node); if (CurrentObjDesc == ObjDesc) { ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Obj=%p already installed!\n", ObjDesc)); return_ACPI_STATUS (Status); } /* * If the reference count on the object is more than one, we must * take a copy of the object before we store. A reference count * of exactly 1 means that the object was just created during the * evaluation of an expression, and we can safely use it since it * is not used anywhere else. */ NewObjDesc = ObjDesc; if (ObjDesc->Common.ReferenceCount > 1) { Status = AcpiUtCopyIobjectToIobject (ObjDesc, &NewObjDesc, WalkState); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } } /* * If there is an object already in this slot, we either * have to delete it, or if this is an argument and there * is an object reference stored there, we have to do * an indirect store! */ if (CurrentObjDesc) { /* * Check for an indirect store if an argument * contains an object reference (stored as an Node). * We don't allow this automatic dereferencing for * locals, since a store to a local should overwrite * anything there, including an object reference. * * If both Arg0 and Local0 contain RefOf (Local4): * * Store (1, Arg0) - Causes indirect store to local4 * Store (1, Local0) - Stores 1 in local0, overwriting * the reference to local4 * Store (1, DeRefof (Local0)) - Causes indirect store to local4 * * Weird, but true. */ if (Type == ACPI_REFCLASS_ARG) { /* * If we have a valid reference object that came from RefOf(), * do the indirect store */ if ((ACPI_GET_DESCRIPTOR_TYPE (CurrentObjDesc) == ACPI_DESC_TYPE_OPERAND) && (CurrentObjDesc->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) && (CurrentObjDesc->Reference.Class == ACPI_REFCLASS_REFOF)) { ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Arg (%p) is an ObjRef(Node), storing in node %p\n", NewObjDesc, CurrentObjDesc)); /* * Store this object to the Node (perform the indirect store) * NOTE: No implicit conversion is performed, as per the ACPI * specification rules on storing to Locals/Args. */ Status = AcpiExStoreObjectToNode (NewObjDesc, CurrentObjDesc->Reference.Object, WalkState, ACPI_NO_IMPLICIT_CONVERSION); /* Remove local reference if we copied the object above */ if (NewObjDesc != ObjDesc) { AcpiUtRemoveReference (NewObjDesc); } return_ACPI_STATUS (Status); } } /* Delete the existing object before storing the new one */ AcpiDsMethodDataDeleteValue (Type, Index, WalkState); } /* * Install the Obj descriptor (*NewObjDesc) into * the descriptor for the Arg or Local. * (increments the object reference count by one) */ Status = AcpiDsMethodDataSetValue (Type, Index, NewObjDesc, WalkState); /* Remove local reference if we copied the object above */ if (NewObjDesc != ObjDesc) { AcpiUtRemoveReference (NewObjDesc); } return_ACPI_STATUS (Status); }
ACPI_STATUS AcpiDsEvalBufferFieldOperands ( ACPI_WALK_STATE *WalkState, ACPI_PARSE_OBJECT *Op) { ACPI_STATUS Status; ACPI_OPERAND_OBJECT *ObjDesc; ACPI_NAMESPACE_NODE *Node; ACPI_PARSE_OBJECT *NextOp; ACPI_FUNCTION_TRACE_PTR (DsEvalBufferFieldOperands, Op); /* * This is where we evaluate the address and length fields of the * CreateXxxField declaration */ Node = Op->Common.Node; /* NextOp points to the op that holds the Buffer */ NextOp = Op->Common.Value.Arg; /* Evaluate/create the address and length operands */ Status = AcpiDsCreateOperands (WalkState, NextOp); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } ObjDesc = AcpiNsGetAttachedObject (Node); if (!ObjDesc) { return_ACPI_STATUS (AE_NOT_EXIST); } /* Resolve the operands */ Status = AcpiExResolveOperands (Op->Common.AmlOpcode, ACPI_WALK_OPERANDS, WalkState); if (ACPI_FAILURE (Status)) { ACPI_ERROR ((AE_INFO, "(%s) bad operand(s), status 0x%X", AcpiPsGetOpcodeName (Op->Common.AmlOpcode), Status)); return_ACPI_STATUS (Status); } /* Initialize the Buffer Field */ if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP) { /* NOTE: Slightly different operands for this opcode */ Status = AcpiDsInitBufferField (Op->Common.AmlOpcode, ObjDesc, WalkState->Operands[0], WalkState->Operands[1], WalkState->Operands[2], WalkState->Operands[3]); } else { /* All other, CreateXxxField opcodes */ Status = AcpiDsInitBufferField (Op->Common.AmlOpcode, ObjDesc, WalkState->Operands[0], WalkState->Operands[1], NULL, WalkState->Operands[2]); } return_ACPI_STATUS (Status); }
void AcpiDbDecodeAndDisplayObject ( char *Target, char *OutputType) { void *ObjPtr; ACPI_NAMESPACE_NODE *Node; ACPI_OPERAND_OBJECT *ObjDesc; UINT32 Display = DB_BYTE_DISPLAY; char Buffer[80]; ACPI_BUFFER RetBuf; ACPI_STATUS Status; UINT32 Size; if (!Target) { return; } /* Decode the output type */ if (OutputType) { ACPI_STRUPR (OutputType); if (OutputType[0] == 'W') { Display = DB_WORD_DISPLAY; } else if (OutputType[0] == 'D') { Display = DB_DWORD_DISPLAY; } else if (OutputType[0] == 'Q') { Display = DB_QWORD_DISPLAY; } } RetBuf.Length = sizeof (Buffer); RetBuf.Pointer = Buffer; /* Differentiate between a number and a name */ if ((Target[0] >= 0x30) && (Target[0] <= 0x39)) { ObjPtr = AcpiDbGetPointer (Target); if (!AcpiOsReadable (ObjPtr, 16)) { AcpiOsPrintf ("Address %p is invalid in this address space\n", ObjPtr); return; } /* Decode the object type */ switch (ACPI_GET_DESCRIPTOR_TYPE (ObjPtr)) { case ACPI_DESC_TYPE_NAMED: /* This is a namespace Node */ if (!AcpiOsReadable (ObjPtr, sizeof (ACPI_NAMESPACE_NODE))) { AcpiOsPrintf ("Cannot read entire Named object at address %p\n", ObjPtr); return; } Node = ObjPtr; goto DumpNte; case ACPI_DESC_TYPE_OPERAND: /* This is a ACPI OPERAND OBJECT */ if (!AcpiOsReadable (ObjPtr, sizeof (ACPI_OPERAND_OBJECT))) { AcpiOsPrintf ("Cannot read entire ACPI object at address %p\n", ObjPtr); return; } AcpiUtDumpBuffer (ObjPtr, sizeof (ACPI_OPERAND_OBJECT), Display, ACPI_UINT32_MAX); AcpiExDumpObjectDescriptor (ObjPtr, 1); break; case ACPI_DESC_TYPE_PARSER: /* This is a Parser Op object */ if (!AcpiOsReadable (ObjPtr, sizeof (ACPI_PARSE_OBJECT))) { AcpiOsPrintf ("Cannot read entire Parser object at address %p\n", ObjPtr); return; } AcpiUtDumpBuffer (ObjPtr, sizeof (ACPI_PARSE_OBJECT), Display, ACPI_UINT32_MAX); AcpiDbDumpParserDescriptor ((ACPI_PARSE_OBJECT *) ObjPtr); break; default: /* Is not a recognizeable object */ Size = 16; if (AcpiOsReadable (ObjPtr, 64)) { Size = 64; } /* Just dump some memory */ AcpiUtDumpBuffer (ObjPtr, Size, Display, ACPI_UINT32_MAX); break; } return; } /* The parameter is a name string that must be resolved to a Named obj */ Node = AcpiDbLocalNsLookup (Target); if (!Node) { return; } DumpNte: /* Now dump the Named obj */ Status = AcpiGetName (Node, ACPI_FULL_PATHNAME, &RetBuf); if (ACPI_FAILURE (Status)) { AcpiOsPrintf ("Could not convert name to pathname\n"); } else { AcpiOsPrintf ("Object (%p) Pathname: %s\n", Node, (char *) RetBuf.Pointer); } if (!AcpiOsReadable (Node, sizeof (ACPI_NAMESPACE_NODE))) { AcpiOsPrintf ("Invalid Named object at address %p\n", Node); return; } AcpiUtDumpBuffer ((void *) Node, sizeof (ACPI_NAMESPACE_NODE), Display, ACPI_UINT32_MAX); AcpiExDumpNode (Node, 1); ObjDesc = AcpiNsGetAttachedObject (Node); if (ObjDesc) { AcpiOsPrintf ("\nAttached Object (%p):\n", ObjDesc); if (!AcpiOsReadable (ObjDesc, sizeof (ACPI_OPERAND_OBJECT))) { AcpiOsPrintf ("Invalid internal ACPI Object at address %p\n", ObjDesc); return; } AcpiUtDumpBuffer ((void *) ObjDesc, sizeof (ACPI_OPERAND_OBJECT), Display, ACPI_UINT32_MAX); AcpiExDumpObjectDescriptor (ObjDesc, 1); } }
ACPI_STATUS AcpiDsEvalRegionOperands ( ACPI_WALK_STATE *WalkState, ACPI_PARSE_OBJECT *Op) { ACPI_STATUS Status; ACPI_OPERAND_OBJECT *ObjDesc; ACPI_OPERAND_OBJECT *OperandDesc; ACPI_NAMESPACE_NODE *Node; ACPI_PARSE_OBJECT *NextOp; ACPI_FUNCTION_TRACE_PTR (DsEvalRegionOperands, Op); /* * This is where we evaluate the address and length fields of the * OpRegion declaration */ Node = Op->Common.Node; /* NextOp points to the op that holds the SpaceID */ NextOp = Op->Common.Value.Arg; /* NextOp points to address op */ NextOp = NextOp->Common.Next; /* Evaluate/create the address and length operands */ Status = AcpiDsCreateOperands (WalkState, NextOp); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* Resolve the length and address operands to numbers */ Status = AcpiExResolveOperands (Op->Common.AmlOpcode, ACPI_WALK_OPERANDS, WalkState); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } ObjDesc = AcpiNsGetAttachedObject (Node); if (!ObjDesc) { return_ACPI_STATUS (AE_NOT_EXIST); } /* * Get the length operand and save it * (at Top of stack) */ OperandDesc = WalkState->Operands[WalkState->NumOperands - 1]; ObjDesc->Region.Length = (UINT32) OperandDesc->Integer.Value; AcpiUtRemoveReference (OperandDesc); /* * Get the address and save it * (at top of stack - 1) */ OperandDesc = WalkState->Operands[WalkState->NumOperands - 2]; ObjDesc->Region.Address = (ACPI_PHYSICAL_ADDRESS) OperandDesc->Integer.Value; AcpiUtRemoveReference (OperandDesc); ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n", ObjDesc, ACPI_FORMAT_NATIVE_UINT (ObjDesc->Region.Address), ObjDesc->Region.Length)); /* Now the address and length are valid for this opregion */ ObjDesc->Region.Flags |= AOPOBJ_DATA_VALID; return_ACPI_STATUS (Status); }
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); } } else if (Op->Common.AmlOpcode == AML_DATA_REGION_OP) { Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length, ACPI_ADR_SPACE_DATA_TABLE, 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); } } }
ACPI_STATUS AcpiExPrepFieldValue ( ACPI_CREATE_FIELD_INFO *Info) { ACPI_OPERAND_OBJECT *ObjDesc; ACPI_OPERAND_OBJECT *SecondDesc = NULL; ACPI_STATUS Status; UINT32 AccessByteWidth; UINT32 Type; ACPI_FUNCTION_TRACE (ExPrepFieldValue); /* Parameter validation */ if (Info->FieldType != ACPI_TYPE_LOCAL_INDEX_FIELD) { if (!Info->RegionNode) { ACPI_ERROR ((AE_INFO, "Null RegionNode")); return_ACPI_STATUS (AE_AML_NO_OPERAND); } Type = AcpiNsGetType (Info->RegionNode); if (Type != ACPI_TYPE_REGION) { ACPI_ERROR ((AE_INFO, "Needed Region, found type 0x%X (%s)", Type, AcpiUtGetTypeName (Type))); return_ACPI_STATUS (AE_AML_OPERAND_TYPE); } } /* Allocate a new field object */ ObjDesc = AcpiUtCreateInternalObject (Info->FieldType); if (!ObjDesc) { return_ACPI_STATUS (AE_NO_MEMORY); } /* Initialize areas of the object that are common to all fields */ ObjDesc->CommonField.Node = Info->FieldNode; Status = AcpiExPrepCommonFieldObject (ObjDesc, Info->FieldFlags, Info->Attribute, Info->FieldBitPosition, Info->FieldBitLength); if (ACPI_FAILURE (Status)) { AcpiUtDeleteObjectDesc (ObjDesc); return_ACPI_STATUS (Status); } /* Initialize areas of the object that are specific to the field type */ switch (Info->FieldType) { case ACPI_TYPE_LOCAL_REGION_FIELD: ObjDesc->Field.RegionObj = AcpiNsGetAttachedObject (Info->RegionNode); /* Fields specific to GenericSerialBus fields */ ObjDesc->Field.AccessLength = Info->AccessLength; if (Info->ConnectionNode) { SecondDesc = Info->ConnectionNode->Object; if (!(SecondDesc->Common.Flags & AOPOBJ_DATA_VALID)) { Status = AcpiDsGetBufferArguments (SecondDesc); if (ACPI_FAILURE (Status)) { AcpiUtDeleteObjectDesc (ObjDesc); return_ACPI_STATUS (Status); } } ObjDesc->Field.ResourceBuffer = SecondDesc->Buffer.Pointer; ObjDesc->Field.ResourceLength = (UINT16) SecondDesc->Buffer.Length; } else if (Info->ResourceBuffer) { ObjDesc->Field.ResourceBuffer = Info->ResourceBuffer; ObjDesc->Field.ResourceLength = Info->ResourceLength; } /* Allow full data read from EC address space */ if ((ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_EC) && (ObjDesc->CommonField.BitLength > 8)) { AccessByteWidth = ACPI_ROUND_BITS_UP_TO_BYTES ( ObjDesc->CommonField.BitLength); /* Maximum byte width supported is 255 */ if (AccessByteWidth < 256) { ObjDesc->CommonField.AccessByteWidth = (UINT8) AccessByteWidth; } } /* An additional reference for the container */ AcpiUtAddReference (ObjDesc->Field.RegionObj); ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, "RegionField: BitOff %X, Off %X, Gran %X, Region %p\n", ObjDesc->Field.StartFieldBitOffset, ObjDesc->Field.BaseByteOffset, ObjDesc->Field.AccessByteWidth, ObjDesc->Field.RegionObj)); break; case ACPI_TYPE_LOCAL_BANK_FIELD: ObjDesc->BankField.Value = Info->BankValue; ObjDesc->BankField.RegionObj = AcpiNsGetAttachedObject (Info->RegionNode); ObjDesc->BankField.BankObj = AcpiNsGetAttachedObject (Info->RegisterNode); /* An additional reference for the attached objects */ AcpiUtAddReference (ObjDesc->BankField.RegionObj); AcpiUtAddReference (ObjDesc->BankField.BankObj); ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, "Bank Field: BitOff %X, Off %X, Gran %X, Region %p, BankReg %p\n", ObjDesc->BankField.StartFieldBitOffset, ObjDesc->BankField.BaseByteOffset, ObjDesc->Field.AccessByteWidth, ObjDesc->BankField.RegionObj, ObjDesc->BankField.BankObj)); /* * Remember location in AML stream of the field unit * opcode and operands -- since the BankValue * operands must be evaluated. */ SecondDesc = ObjDesc->Common.NextObject; SecondDesc->Extra.AmlStart = ACPI_CAST_PTR (ACPI_PARSE_OBJECT, Info->DataRegisterNode)->Named.Data; SecondDesc->Extra.AmlLength = ACPI_CAST_PTR (ACPI_PARSE_OBJECT, Info->DataRegisterNode)->Named.Length; break; case ACPI_TYPE_LOCAL_INDEX_FIELD: /* Get the Index and Data registers */ ObjDesc->IndexField.IndexObj = AcpiNsGetAttachedObject (Info->RegisterNode); ObjDesc->IndexField.DataObj = AcpiNsGetAttachedObject (Info->DataRegisterNode); if (!ObjDesc->IndexField.DataObj || !ObjDesc->IndexField.IndexObj) { ACPI_ERROR ((AE_INFO, "Null Index Object during field prep")); AcpiUtDeleteObjectDesc (ObjDesc); return_ACPI_STATUS (AE_AML_INTERNAL); } /* An additional reference for the attached objects */ AcpiUtAddReference (ObjDesc->IndexField.DataObj); AcpiUtAddReference (ObjDesc->IndexField.IndexObj); /* * April 2006: Changed to match MS behavior * * The value written to the Index register is the byte offset of the * target field in units of the granularity of the IndexField * * Previously, the value was calculated as an index in terms of the * width of the Data register, as below: * * ObjDesc->IndexField.Value = (UINT32) * (Info->FieldBitPosition / ACPI_MUL_8 ( * ObjDesc->Field.AccessByteWidth)); * * February 2006: Tried value as a byte offset: * ObjDesc->IndexField.Value = (UINT32) * ACPI_DIV_8 (Info->FieldBitPosition); */ ObjDesc->IndexField.Value = (UINT32) ACPI_ROUND_DOWN ( ACPI_DIV_8 (Info->FieldBitPosition), ObjDesc->IndexField.AccessByteWidth); ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, "IndexField: BitOff %X, Off %X, Value %X, Gran %X, Index %p, Data %p\n", ObjDesc->IndexField.StartFieldBitOffset, ObjDesc->IndexField.BaseByteOffset, ObjDesc->IndexField.Value, ObjDesc->Field.AccessByteWidth, ObjDesc->IndexField.IndexObj, ObjDesc->IndexField.DataObj)); break; default: /* No other types should get here */ break; } /* * Store the constructed descriptor (ObjDesc) into the parent Node, * preserving the current type of that NamedObj. */ Status = AcpiNsAttachObject (Info->FieldNode, ObjDesc, AcpiNsGetType (Info->FieldNode)); ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, "Set NamedObj %p [%4.4s], ObjDesc %p\n", Info->FieldNode, AcpiUtGetNodeName (Info->FieldNode), ObjDesc)); /* Remove local reference to the object */ AcpiUtRemoveReference (ObjDesc); return_ACPI_STATUS (Status); }