/****************************************************************************** * * Module Name: excreate - Named object creation * $Revision: 63 $ * *****************************************************************************/ /****************************************************************************** * * 1. Copyright Notice * * Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp. * All rights reserved. * * 2. License * * 2.1. This is your license from Intel Corp. under its intellectual property * rights. You may have additional license terms from the party that provided * you this software, covering your right to use that party's intellectual * property rights. * * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a * copy of the source code appearing in this file ("Covered Code") an * irrevocable, perpetual, worldwide license under Intel's copyrights in the * base code distributed originally by Intel ("Original Intel Code") to copy, * make derivatives, distribute, use and display any portion of the Covered * Code in any form, with the right to sublicense such rights; and * * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent * license (with the right to sublicense), under only those claims of Intel * patents that are infringed by the Original Intel Code, to make, use, sell, * offer to sell, and import the Covered Code and derivative works thereof * solely to the minimum extent necessary to exercise the above copyright * license, and in no event shall the patent license extend to any additions * to or modifications of the Original Intel Code. No other license or right * is granted directly or by implication, estoppel or otherwise; * * The above copyright and patent license is granted only if the following * conditions are met: * * 3. Conditions * * 3.1. Redistribution of Source with Rights to Further Distribute Source. * Redistribution of source code of any substantial portion of the Covered * Code or modification with rights to further distribute source must include * the above Copyright Notice, the above License, this list of Conditions, * and the following Disclaimer and Export Compliance provision. In addition, * Licensee must cause all Covered Code to which Licensee contributes to * contain a file documenting the changes Licensee made to create that Covered * Code and the date of any change. Licensee must include in that file the * documentation of any changes made by any predecessor Licensee. Licensee * must include a prominent statement that the modification is derived, * directly or indirectly, from Original Intel Code. * * 3.2. Redistribution of Source with no Rights to Further Distribute Source. * Redistribution of source code of any substantial portion of the Covered * Code or modification without rights to further distribute source must * include the following Disclaimer and Export Compliance provision in the * documentation and/or other materials provided with distribution. In * addition, Licensee may not authorize further sublicense of source of any * portion of the Covered Code, and must include terms to the effect that the * license from Licensee to its licensee is limited to the intellectual * property embodied in the software Licensee provides to its licensee, and * not to intellectual property embodied in modifications its licensee may * make. * * 3.3. Redistribution of Executable. Redistribution in executable form of any * substantial portion of the Covered Code or modification must reproduce the * above Copyright Notice, and the following Disclaimer and Export Compliance * provision in the documentation and/or other materials provided with the * distribution. * * 3.4. Intel retains all right, title, and interest in and to the Original * Intel Code. * * 3.5. Neither the name Intel nor any other trademark owned or controlled by * Intel shall be used in advertising or otherwise to promote the sale, use or * other dealings in products derived from or relating to the Covered Code * without prior written authorization from Intel. * * 4. Disclaimer and Export Compliance * * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A * PARTICULAR PURPOSE. * * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY * LIMITED REMEDY. * * 4.3. Licensee shall not export, either directly or indirectly, any of this * software or system incorporating such software without first obtaining any * required license or other approval from the U. S. Department of Commerce or * any other agency or department of the United States Government. In the * event Licensee exports any such software from the United States or * re-exports any such software from a foreign destination, Licensee shall * ensure that the distribution and export/re-export of the software is in * compliance with all laws, regulations, orders, or other restrictions of the * U.S. Export Administration Regulations. Licensee agrees that neither it nor * any of its subsidiaries will export/re-export any technical data, process, * software, or service, directly or indirectly, to any country for which the * United States government or any agency thereof requires an export license, * other governmental approval, or letter of assurance, without first obtaining * such license, approval or letter. * *****************************************************************************/ #define __EXCREATE_C__ #include "acpi.h" #include "acparser.h" #include "acinterp.h" #include "amlcode.h" #include "acnamesp.h" #include "acevents.h" #include "acdispat.h" #define _COMPONENT ACPI_EXECUTER MODULE_NAME ("excreate") /******************************************************************************* * * FUNCTION: AcpiExCreateBufferField * * PARAMETERS: Opcode - The opcode to be executed * Operands - List of operands for the opcode * * RETURN: Status * * DESCRIPTION: Execute CreateField operators: CreateBitFieldOp, * CreateByteFieldOp, CreateWordFieldOp, CreateDWordFieldOp, * CreateFieldOp (which define fields in buffers) * * ALLOCATION: Deletes CreateFieldOp's count operand descriptor * * * ACPI SPECIFICATION REFERENCES: * DefCreateBitField := CreateBitFieldOp SrcBuf BitIdx NameString * DefCreateByteField := CreateByteFieldOp SrcBuf ByteIdx NameString * DefCreateDWordField := CreateDWordFieldOp SrcBuf ByteIdx NameString * DefCreateField := CreateFieldOp SrcBuf BitIdx NumBits NameString * DefCreateWordField := CreateWordFieldOp SrcBuf ByteIdx NameString * BitIndex := TermArg=>Integer * ByteIndex := TermArg=>Integer * NumBits := TermArg=>Integer * SourceBuff := TermArg=>Buffer * ******************************************************************************/ ACPI_STATUS AcpiExCreateBufferField ( UINT8 *AmlPtr, UINT32 AmlLength, ACPI_NAMESPACE_NODE *Node, ACPI_WALK_STATE *WalkState) { ACPI_STATUS Status; ACPI_OPERAND_OBJECT *ObjDesc; ACPI_OPERAND_OBJECT *TmpDesc; FUNCTION_TRACE ("ExCreateBufferField"); /* Create the descriptor */ ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_BUFFER_FIELD); if (!ObjDesc) { Status = AE_NO_MEMORY; goto Cleanup; } /* * Allocate a method object for this field unit */ ObjDesc->BufferField.Extra = AcpiUtCreateInternalObject ( INTERNAL_TYPE_EXTRA); if (!ObjDesc->BufferField.Extra) { Status = AE_NO_MEMORY; goto Cleanup; } /* * Remember location in AML stream of the field unit * opcode and operands -- since the buffer and index * operands must be evaluated. */ ObjDesc->BufferField.Extra->Extra.Pcode = AmlPtr; ObjDesc->BufferField.Extra->Extra.PcodeLength = AmlLength; ObjDesc->BufferField.Node = Node; /* * This operation is supposed to cause the destination Name to refer * to the defined BufferField -- it must not store the constructed * BufferField object (or its current value) in some location that the * Name may already be pointing to. So, if the Name currently contains * a reference which would cause AcpiExStore() to perform an indirect * store rather than setting the value of the Name itself, clobber that * reference before calling AcpiExStore(). */ /* Type of Name's existing value */ switch (AcpiNsGetType (Node)) { case ACPI_TYPE_BUFFER_FIELD: case INTERNAL_TYPE_ALIAS: case INTERNAL_TYPE_REGION_FIELD: case INTERNAL_TYPE_BANK_FIELD: case INTERNAL_TYPE_INDEX_FIELD: TmpDesc = AcpiNsGetAttachedObject (Node); if (TmpDesc) { /* * There is an existing object here; delete it and zero out the * object field within the Node */ DUMP_PATHNAME (Node, "ExCreateBufferField: Removing Current Reference", TRACE_BFIELD, _COMPONENT); DUMP_ENTRY (Node, TRACE_BFIELD); DUMP_STACK_ENTRY (TmpDesc); AcpiUtRemoveReference (TmpDesc); AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) Node, NULL, ACPI_TYPE_ANY); } /* Set the type to ANY (or the store below will fail) */ ((ACPI_NAMESPACE_NODE *) Node)->Type = ACPI_TYPE_ANY; break; default: break; } /* Store constructed field descriptor in result location */ Status = AcpiExStore (ObjDesc, (ACPI_OPERAND_OBJECT *) Node, WalkState); /* * If the field descriptor was not physically stored (or if a failure * above), we must delete it */ if (ObjDesc->Common.ReferenceCount <= 1) { AcpiUtRemoveReference (ObjDesc); } return_ACPI_STATUS (AE_OK); Cleanup: /* Delete region object and method subobject */ if (ObjDesc) { /* Remove deletes both objects! */ AcpiUtRemoveReference (ObjDesc); ObjDesc = NULL; } return_ACPI_STATUS (Status); } /***************************************************************************** * * FUNCTION: AcpiExCreateAlias * * PARAMETERS: WalkState - Current state, contains List of * operands for the opcode * * RETURN: Status * * DESCRIPTION: Create a new named alias * ****************************************************************************/ ACPI_STATUS AcpiExCreateAlias ( ACPI_WALK_STATE *WalkState) { ACPI_NAMESPACE_NODE *SourceNode; ACPI_NAMESPACE_NODE *AliasNode; ACPI_STATUS Status; FUNCTION_TRACE ("ExCreateAlias"); /* Get the source/alias operands (both namespace nodes) */ Status = AcpiDsObjStackPopObject ((ACPI_OPERAND_OBJECT **) &SourceNode, WalkState); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* * Don't pop it, it gets removed in the calling routine */ AliasNode = AcpiDsObjStackGetValue (0, WalkState); /* Add an additional reference to the object */ AcpiUtAddReference (SourceNode->Object); /* * Attach the original source Node to the new Alias Node. */ Status = AcpiNsAttachObject (AliasNode, SourceNode->Object, SourceNode->Type); /* * The new alias assumes the type of the source, but it points * to the same object. The reference count of the object has two * additional references to prevent deletion out from under either the * source or the alias Node */ /* Since both operands are Nodes, we don't need to delete them */ return_ACPI_STATUS (Status); } /***************************************************************************** * * FUNCTION: AcpiExCreateEvent * * PARAMETERS: None * * RETURN: Status * * DESCRIPTION: Create a new event object * ****************************************************************************/ ACPI_STATUS AcpiExCreateEvent ( ACPI_WALK_STATE *WalkState) { ACPI_STATUS Status; ACPI_OPERAND_OBJECT *ObjDesc; FUNCTION_TRACE ("ExCreateEvent"); BREAKPOINT3; ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_EVENT); if (!ObjDesc) { Status = AE_NO_MEMORY; goto Cleanup; } /* Create the actual OS semaphore */ /* TBD: [Investigate] should be created with 0 or 1 units? */ Status = AcpiOsCreateSemaphore (ACPI_NO_UNIT_LIMIT, 1, &ObjDesc->Event.Semaphore); if (ACPI_FAILURE (Status)) { AcpiUtRemoveReference (ObjDesc); goto Cleanup; } /* Attach object to the Node */ Status = AcpiNsAttachObject (AcpiDsObjStackGetValue (0, WalkState), ObjDesc, (UINT8) ACPI_TYPE_EVENT); if (ACPI_FAILURE (Status)) { AcpiOsDeleteSemaphore (ObjDesc->Event.Semaphore); AcpiUtRemoveReference (ObjDesc); goto Cleanup; } Cleanup: return_ACPI_STATUS (Status); } /***************************************************************************** * * FUNCTION: AcpiExCreateMutex * * PARAMETERS: InterpreterMode - Current running mode (load1/Load2/Exec) * Operands - List of operands for the opcode * * RETURN: Status * * DESCRIPTION: Create a new mutex object * ****************************************************************************/ ACPI_STATUS AcpiExCreateMutex ( ACPI_WALK_STATE *WalkState) { ACPI_STATUS Status = AE_OK; ACPI_OPERAND_OBJECT *SyncDesc; ACPI_OPERAND_OBJECT *ObjDesc; FUNCTION_TRACE_PTR ("ExCreateMutex", WALK_OPERANDS); /* Get the operand */ Status = AcpiDsObjStackPopObject (&SyncDesc, WalkState); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* Attempt to allocate a new object */ ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_MUTEX); if (!ObjDesc) { Status = AE_NO_MEMORY; goto Cleanup; } /* Create the actual OS semaphore */ Status = AcpiOsCreateSemaphore (1, 1, &ObjDesc->Mutex.Semaphore); if (ACPI_FAILURE (Status)) { AcpiUtRemoveReference (ObjDesc); goto Cleanup; } ObjDesc->Mutex.SyncLevel = (UINT8) SyncDesc->Integer.Value; /* ObjDesc was on the stack top, and the name is below it */ Status = AcpiNsAttachObject (AcpiDsObjStackGetValue (0, WalkState), ObjDesc, (UINT8) ACPI_TYPE_MUTEX); if (ACPI_FAILURE (Status)) { AcpiOsDeleteSemaphore (ObjDesc->Mutex.Semaphore); AcpiUtRemoveReference (ObjDesc); goto Cleanup; } Cleanup: /* Always delete the operand */ AcpiUtRemoveReference (SyncDesc); return_ACPI_STATUS (Status); } /***************************************************************************** * * FUNCTION: AcpiExCreateRegion * * PARAMETERS: AmlPtr - Pointer to the region declaration AML * AmlLength - Max length of the declaration AML * Operands - List of operands for the opcode * InterpreterMode - Load1/Load2/Execute * * RETURN: Status * * DESCRIPTION: Create a new operation region object * ****************************************************************************/ ACPI_STATUS AcpiExCreateRegion ( UINT8 *AmlPtr, UINT32 AmlLength, UINT8 RegionSpace, ACPI_WALK_STATE *WalkState) { ACPI_STATUS Status; ACPI_OPERAND_OBJECT *ObjDesc; ACPI_NAMESPACE_NODE *Node; FUNCTION_TRACE ("ExCreateRegion"); /* * Space ID must be one of the predefined IDs, or in the user-defined * range */ if ((RegionSpace >= NUM_REGION_TYPES) && (RegionSpace < USER_REGION_BEGIN)) { REPORT_ERROR (("Invalid AddressSpace type %X\n", RegionSpace)); return_ACPI_STATUS (AE_AML_INVALID_SPACE_ID); } DEBUG_PRINTP (TRACE_LOAD, ("Region Type - %s (%X)\n", AcpiUtGetRegionName (RegionSpace), RegionSpace)); /* Get the Node from the object stack */ Node = (ACPI_NAMESPACE_NODE *) AcpiDsObjStackGetValue (0, WalkState); /* Create the region descriptor */ ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_REGION); if (!ObjDesc) { Status = AE_NO_MEMORY; goto Cleanup; } /* * Allocate a method object for this region. */ ObjDesc->Region.Extra = AcpiUtCreateInternalObject ( INTERNAL_TYPE_EXTRA); if (!ObjDesc->Region.Extra) { Status = AE_NO_MEMORY; goto Cleanup; } /* * Remember location in AML stream of address & length * operands since they need to be evaluated at run time. */ ObjDesc->Region.Extra->Extra.Pcode = AmlPtr; ObjDesc->Region.Extra->Extra.PcodeLength = AmlLength; /* Init the region from the operands */ ObjDesc->Region.SpaceId = RegionSpace; ObjDesc->Region.Address = 0; ObjDesc->Region.Length = 0; /* Install the new region object in the parent Node */ ObjDesc->Region.Node = Node; Status = AcpiNsAttachObject (Node, ObjDesc, (UINT8) ACPI_TYPE_REGION); if (ACPI_FAILURE (Status)) { goto Cleanup; } /* * If we have a valid region, initialize it * Namespace is NOT locked at this point. */ Status = AcpiEvInitializeRegion (ObjDesc, FALSE); if (ACPI_FAILURE (Status)) { /* * If AE_NOT_EXIST is returned, it is not fatal * because many regions get created before a handler * is installed for said region. */ if (AE_NOT_EXIST == Status) { Status = AE_OK; } } Cleanup: if (ACPI_FAILURE (Status)) { /* Delete region object and method subobject */ if (ObjDesc) { /* Remove deletes both objects! */ AcpiUtRemoveReference (ObjDesc); ObjDesc = NULL; } } return_ACPI_STATUS (Status); } /***************************************************************************** * * FUNCTION: AcpiExCreateProcessor * * PARAMETERS: Op - Op containing the Processor definition and * args * ProcessorNode - Parent Node for the processor object * * RETURN: Status * * DESCRIPTION: Create a new processor object and populate the fields * ****************************************************************************/ ACPI_STATUS AcpiExCreateProcessor ( ACPI_PARSE_OBJECT *Op, ACPI_NAMESPACE_NODE *ProcessorNode) { ACPI_STATUS Status; ACPI_PARSE_OBJECT *Arg; ACPI_OPERAND_OBJECT *ObjDesc; FUNCTION_TRACE_PTR ("ExCreateProcessor", Op); ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_PROCESSOR); if (!ObjDesc) { return_ACPI_STATUS (AE_NO_MEMORY); } /* Install the new processor object in the parent Node */ Status = AcpiNsAttachObject (ProcessorNode, ObjDesc, (UINT8) ACPI_TYPE_PROCESSOR); if (ACPI_FAILURE (Status)) { AcpiUtDeleteObjectDesc (ObjDesc); return_ACPI_STATUS (Status); } /* Get first arg and verify existence */ Arg = Op->Value.Arg; if (!Arg) { return_ACPI_STATUS (AE_AML_NO_OPERAND); } /* First arg is the Processor ID */ ObjDesc->Processor.ProcId = (UINT8) Arg->Value.Integer; /* Get second arg and verify existence */ Arg = Arg->Next; if (!Arg) { return_ACPI_STATUS (AE_AML_NO_OPERAND); } /* Second arg is the PBlock Address */ ObjDesc->Processor.Address = (ACPI_IO_ADDRESS) Arg->Value.Integer; /* Get third arg and verify existence */ Arg = Arg->Next; if (!Arg) { return_ACPI_STATUS (AE_AML_NO_OPERAND); } /* Third arg is the PBlock Length */ ObjDesc->Processor.Length = (UINT8) Arg->Value.Integer; return_ACPI_STATUS (AE_OK); } /***************************************************************************** * * FUNCTION: AcpiExCreatePowerResource * * PARAMETERS: Op - Op containing the PowerResource definition * and args * PowerNode - Parent Node for the power object * * RETURN: Status * * DESCRIPTION: Create a new PowerResource object and populate the fields * ****************************************************************************/ ACPI_STATUS AcpiExCreatePowerResource ( ACPI_PARSE_OBJECT *Op, ACPI_NAMESPACE_NODE *PowerNode) { ACPI_STATUS Status; ACPI_PARSE_OBJECT *Arg; ACPI_OPERAND_OBJECT *ObjDesc; FUNCTION_TRACE_PTR ("ExCreatePowerResource", Op); ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_POWER); if (!ObjDesc) { return_ACPI_STATUS (AE_NO_MEMORY); } /* Install the new power resource object in the parent Node */ Status = AcpiNsAttachObject (PowerNode, ObjDesc, (UINT8) ACPI_TYPE_POWER); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS(Status); } /* Get first arg and verify existence */ Arg = Op->Value.Arg; if (!Arg) { return_ACPI_STATUS (AE_AML_NO_OPERAND); } /* First arg is the SystemLevel */ ObjDesc->PowerResource.SystemLevel = (UINT8) Arg->Value.Integer; /* Get second arg and check existence */ Arg = Arg->Next; if (!Arg) { return_ACPI_STATUS (AE_AML_NO_OPERAND); } /* Second arg is the PBlock Address */ ObjDesc->PowerResource.ResourceOrder = (UINT16) Arg->Value.Integer; return_ACPI_STATUS (AE_OK); } /***************************************************************************** * * FUNCTION: AcpiExCreateMethod * * PARAMETERS: AmlPtr - First byte of the method's AML * AmlLength - AML byte count for this method * MethodFlags - AML method flag byte * Method - Method Node * * RETURN: Status * * DESCRIPTION: Create a new method object * ****************************************************************************/ ACPI_STATUS AcpiExCreateMethod ( UINT8 *AmlPtr, UINT32 AmlLength, UINT32 MethodFlags, ACPI_NAMESPACE_NODE *Method) { ACPI_OPERAND_OBJECT *ObjDesc; ACPI_STATUS Status; FUNCTION_TRACE_PTR ("ExCreateMethod", Method); /* Create a new method object */ ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_METHOD); if (!ObjDesc) { return_ACPI_STATUS (AE_NO_MEMORY); } /* Get the method's AML pointer/length from the Op */ ObjDesc->Method.Pcode = AmlPtr; ObjDesc->Method.PcodeLength = AmlLength; /* * First argument is the Method Flags (contains parameter count for the * method) */ ObjDesc->Method.MethodFlags = (UINT8) MethodFlags; ObjDesc->Method.ParamCount = (UINT8) (MethodFlags & METHOD_FLAGS_ARG_COUNT); /* * Get the concurrency count. If required, a semaphore will be * created for this method when it is parsed. */ if (MethodFlags & METHOD_FLAGS_SERIALIZED) { /* * ACPI 1.0: Concurrency = 1 * ACPI 2.0: Concurrency = (SyncLevel (in method declaration) + 1) */ ObjDesc->Method.Concurrency = (UINT8) (((MethodFlags & METHOD_FLAGS_SYNCH_LEVEL) >> 4) + 1); } else { ObjDesc->Method.Concurrency = INFINITE_CONCURRENCY; } /* Attach the new object to the method Node */ Status = AcpiNsAttachObject (Method, ObjDesc, (UINT8) ACPI_TYPE_METHOD); if (ACPI_FAILURE (Status)) { AcpiUtDeleteObjectDesc (ObjDesc); } return_ACPI_STATUS (Status); }