609 lines
19 KiB
C
609 lines
19 KiB
C
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/******************************************************************************
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*
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* Module Name: amresop - AML Interpreter operand/object resolution
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* $Revision: 18 $
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*
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*****************************************************************************/
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/******************************************************************************
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*
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* 1. Copyright Notice
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*
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* Some or all of this work - Copyright (c) 1999, Intel Corp. All rights
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* reserved.
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*
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* 2. License
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*
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* 2.1. This is your license from Intel Corp. under its intellectual property
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* rights. You may have additional license terms from the party that provided
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* you this software, covering your right to use that party's intellectual
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* property rights.
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*
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* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
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* copy of the source code appearing in this file ("Covered Code") an
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* irrevocable, perpetual, worldwide license under Intel's copyrights in the
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* base code distributed originally by Intel ("Original Intel Code") to copy,
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* make derivatives, distribute, use and display any portion of the Covered
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* Code in any form, with the right to sublicense such rights; and
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*
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* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
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* license (with the right to sublicense), under only those claims of Intel
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* patents that are infringed by the Original Intel Code, to make, use, sell,
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* offer to sell, and import the Covered Code and derivative works thereof
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* solely to the minimum extent necessary to exercise the above copyright
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* license, and in no event shall the patent license extend to any additions
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* to or modifications of the Original Intel Code. No other license or right
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* is granted directly or by implication, estoppel or otherwise;
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*
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* The above copyright and patent license is granted only if the following
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* conditions are met:
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*
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* 3. Conditions
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*
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* 3.1. Redistribution of Source with Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification with rights to further distribute source must include
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* the above Copyright Notice, the above License, this list of Conditions,
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* and the following Disclaimer and Export Compliance provision. In addition,
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* Licensee must cause all Covered Code to which Licensee contributes to
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* contain a file documenting the changes Licensee made to create that Covered
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* Code and the date of any change. Licensee must include in that file the
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* documentation of any changes made by any predecessor Licensee. Licensee
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* must include a prominent statement that the modification is derived,
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* directly or indirectly, from Original Intel Code.
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*
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* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification without rights to further distribute source must
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* include the following Disclaimer and Export Compliance provision in the
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* documentation and/or other materials provided with distribution. In
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* addition, Licensee may not authorize further sublicense of source of any
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* portion of the Covered Code, and must include terms to the effect that the
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* license from Licensee to its licensee is limited to the intellectual
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* property embodied in the software Licensee provides to its licensee, and
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* not to intellectual property embodied in modifications its licensee may
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* make.
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*
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* 3.3. Redistribution of Executable. Redistribution in executable form of any
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* substantial portion of the Covered Code or modification must reproduce the
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* above Copyright Notice, and the following Disclaimer and Export Compliance
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* provision in the documentation and/or other materials provided with the
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* distribution.
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*
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* 3.4. Intel retains all right, title, and interest in and to the Original
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* Intel Code.
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*
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* 3.5. Neither the name Intel nor any other trademark owned or controlled by
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* Intel shall be used in advertising or otherwise to promote the sale, use or
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* other dealings in products derived from or relating to the Covered Code
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* without prior written authorization from Intel.
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*
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* 4. Disclaimer and Export Compliance
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*
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* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
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* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
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* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
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* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
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* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
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* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
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* PARTICULAR PURPOSE.
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*
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* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
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* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
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* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
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* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
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* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
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* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
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* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
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* LIMITED REMEDY.
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*
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* 4.3. Licensee shall not export, either directly or indirectly, any of this
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* software or system incorporating such software without first obtaining any
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* required license or other approval from the U. S. Department of Commerce or
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* any other agency or department of the United States Government. In the
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* event Licensee exports any such software from the United States or
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* re-exports any such software from a foreign destination, Licensee shall
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* ensure that the distribution and export/re-export of the software is in
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* compliance with all laws, regulations, orders, or other restrictions of the
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* U.S. Export Administration Regulations. Licensee agrees that neither it nor
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* any of its subsidiaries will export/re-export any technical data, process,
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* software, or service, directly or indirectly, to any country for which the
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* United States government or any agency thereof requires an export license,
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* other governmental approval, or letter of assurance, without first obtaining
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* such license, approval or letter.
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*
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*****************************************************************************/
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#define __AMRESOP_C__
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#include "acpi.h"
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#include "amlcode.h"
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#include "acparser.h"
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#include "acdispat.h"
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#include "acinterp.h"
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#include "acnamesp.h"
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#include "actables.h"
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#include "acevents.h"
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#define _COMPONENT INTERPRETER
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MODULE_NAME ("amresop")
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/*******************************************************************************
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*
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* FUNCTION: AcpiAmlCheckObjectType
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*
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* PARAMETERS: TypeNeeded Object type needed
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* ThisType Actual object type
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* Object Object pointer
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*
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* RETURN: Status
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*
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* DESCRIPTION: Check required type against actual type
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiAmlCheckObjectType (
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ACPI_OBJECT_TYPE TypeNeeded,
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ACPI_OBJECT_TYPE ThisType,
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void *Object)
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{
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if (TypeNeeded == ACPI_TYPE_ANY)
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{
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/* All types OK, so we don't perform any typechecks */
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return (AE_OK);
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}
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if (TypeNeeded != ThisType)
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{
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DEBUG_PRINT (ACPI_INFO,
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("AmlResolveOperands: Needed [%s], found [%s] %p\n",
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AcpiCmGetTypeName (TypeNeeded),
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AcpiCmGetTypeName (ThisType), Object));
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return (AE_AML_OPERAND_TYPE);
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}
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return (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiAmlResolveOperands
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*
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* PARAMETERS: Opcode Opcode being interpreted
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* StackPtr Top of operand stack
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*
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* RETURN: Status
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*
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* DESCRIPTION: Convert stack entries to required types
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*
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* Each nibble in ArgTypes represents one required operand
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* and indicates the required Type:
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*
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* The corresponding stack entry will be converted to the
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* required type if possible, else return an exception
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiAmlResolveOperands (
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UINT16 Opcode,
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ACPI_OPERAND_OBJECT **StackPtr,
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ACPI_WALK_STATE *WalkState)
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{
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ACPI_OPERAND_OBJECT *ObjDesc;
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ACPI_STATUS Status = AE_OK;
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UINT8 ObjectType;
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ACPI_HANDLE TempHandle;
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UINT32 ArgTypes;
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ACPI_OPCODE_INFO *OpInfo;
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UINT32 ThisArgType;
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ACPI_OBJECT_TYPE TypeNeeded;
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FUNCTION_TRACE_U32 ("AmlResolveOperands", Opcode);
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OpInfo = AcpiPsGetOpcodeInfo (Opcode);
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if (ACPI_GET_OP_TYPE (OpInfo) != ACPI_OP_TYPE_OPCODE)
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{
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return_ACPI_STATUS (AE_AML_BAD_OPCODE);
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}
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ArgTypes = OpInfo->RuntimeArgs;
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if (ArgTypes == ARGI_INVALID_OPCODE)
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{
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DEBUG_PRINT (ACPI_ERROR,
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("AmlResolveOperands: Internal error - %X is not a valid AML opcode\n", Opcode));
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return_ACPI_STATUS (AE_AML_INTERNAL);
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}
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DEBUG_PRINT (TRACE_EXEC,
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("AmlResolveOperands: Opcode %X OperandTypes=%X \n",
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Opcode, ArgTypes));
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/*
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* Normal exit is with *Types == '\0' at end of string.
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* Function will return an exception from within the loop upon
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* finding an entry which is not, and cannot be converted
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* to, the required type; if stack underflows; or upon
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* finding a NULL stack entry (which "should never happen").
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*/
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while (GET_CURRENT_ARG_TYPE (ArgTypes))
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{
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if (!StackPtr || !*StackPtr)
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{
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DEBUG_PRINT (ACPI_ERROR,
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("AmlResolveOperands: Internal error - null stack entry at %X\n", StackPtr));
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return_ACPI_STATUS (AE_AML_INTERNAL);
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}
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/* Extract useful items */
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ObjDesc = *StackPtr;
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/* Decode the descriptor type */
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if (VALID_DESCRIPTOR_TYPE (ObjDesc, ACPI_DESC_TYPE_NAMED))
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{
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/* Node */
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ObjectType = ((ACPI_NAMESPACE_NODE *) ObjDesc)->Type;
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}
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else if (VALID_DESCRIPTOR_TYPE (ObjDesc, ACPI_DESC_TYPE_INTERNAL))
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{
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/* ACPI internal object */
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ObjectType = ObjDesc->Common.Type;
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/* Check for bad ACPI_OBJECT_TYPE */
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if (!AcpiAmlValidateObjectType (ObjectType))
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{
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DEBUG_PRINT (ACPI_ERROR,
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("AmlResolveOperands: Bad operand object type [%X]\n",
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ObjectType));
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return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
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}
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if (ObjectType == (UINT8) INTERNAL_TYPE_REFERENCE)
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{
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/*
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* Decode the Reference
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*/
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OpInfo = AcpiPsGetOpcodeInfo (Opcode);
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if (ACPI_GET_OP_TYPE (OpInfo) != ACPI_OP_TYPE_OPCODE)
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{
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return_ACPI_STATUS (AE_AML_BAD_OPCODE);
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}
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switch (ObjDesc->Reference.OpCode)
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{
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case AML_ZERO_OP:
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case AML_ONE_OP:
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case AML_ONES_OP:
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case AML_DEBUG_OP:
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case AML_NAME_OP:
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case AML_INDEX_OP:
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case AML_ARG_OP:
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case AML_LOCAL_OP:
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DEBUG_ONLY_MEMBERS (DEBUG_PRINT (ACPI_INFO,
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("Reference Opcode: %s\n", OpInfo->Name)));
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break;
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default:
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DEBUG_PRINT (ACPI_INFO,
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("Reference Opcode: Unknown [%02x]\n",
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ObjDesc->Reference.OpCode));
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return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
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break;
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}
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}
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}
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else
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{
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/* Invalid descriptor */
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DEBUG_PRINT (ACPI_ERROR,
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("Bad descriptor type %X in Obj %p\n",
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ObjDesc->Common.DataType, ObjDesc));
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return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
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}
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/*
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* Get one argument type, point to the next
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*/
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ThisArgType = GET_CURRENT_ARG_TYPE (ArgTypes);
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INCREMENT_ARG_LIST (ArgTypes);
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/*
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* Handle cases where the object does not need to be
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* resolved to a value
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*/
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switch (ThisArgType)
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{
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case ARGI_REFERENCE: /* Reference */
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case ARGI_TARGETREF:
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/* Need an operand of type INTERNAL_TYPE_REFERENCE */
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if (VALID_DESCRIPTOR_TYPE (ObjDesc, ACPI_DESC_TYPE_NAMED)) /* direct name ptr OK as-is */
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{
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goto NextOperand;
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}
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Status = AcpiAmlCheckObjectType (INTERNAL_TYPE_REFERENCE,
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ObjectType, ObjDesc);
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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if (AML_NAME_OP == ObjDesc->Reference.OpCode)
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{
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/*
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* Convert an indirect name ptr to direct name ptr and put
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* it on the stack
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*/
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TempHandle = ObjDesc->Reference.Object;
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AcpiCmRemoveReference (ObjDesc);
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(*StackPtr) = TempHandle;
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}
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goto NextOperand;
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break;
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case ARGI_ANYTYPE:
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/*
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* We don't want to resolve IndexOp reference objects during
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* a store because this would be an implicit DeRefOf operation.
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* Instead, we just want to store the reference object.
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* -- All others must be resolved below.
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*/
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if ((Opcode == AML_STORE_OP) &&
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((*StackPtr)->Common.Type == INTERNAL_TYPE_REFERENCE) &&
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((*StackPtr)->Reference.OpCode == AML_INDEX_OP))
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{
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goto NextOperand;
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}
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break;
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}
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/*
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* Resolve this object to a value
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*/
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Status = AcpiAmlResolveToValue (StackPtr, WalkState);
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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/*
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* Check the resulting object (value) type
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*/
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switch (ThisArgType)
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{
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/*
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* For the simple cases, only one type of resolved object
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* is allowed
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*/
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case ARGI_NUMBER: /* Number */
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/* Need an operand of type ACPI_TYPE_NUMBER */
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TypeNeeded = ACPI_TYPE_NUMBER;
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break;
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case ARGI_BUFFER:
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/* Need an operand of type ACPI_TYPE_BUFFER */
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TypeNeeded = ACPI_TYPE_BUFFER;
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break;
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case ARGI_MUTEX:
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/* Need an operand of type ACPI_TYPE_MUTEX */
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TypeNeeded = ACPI_TYPE_MUTEX;
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break;
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case ARGI_EVENT:
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/* Need an operand of type ACPI_TYPE_EVENT */
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TypeNeeded = ACPI_TYPE_EVENT;
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break;
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case ARGI_REGION:
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/* Need an operand of type ACPI_TYPE_REGION */
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TypeNeeded = ACPI_TYPE_REGION;
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break;
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case ARGI_IF: /* If */
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/* Need an operand of type INTERNAL_TYPE_IF */
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TypeNeeded = INTERNAL_TYPE_IF;
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break;
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case ARGI_PACKAGE: /* Package */
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/* Need an operand of type ACPI_TYPE_PACKAGE */
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TypeNeeded = ACPI_TYPE_PACKAGE;
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break;
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case ARGI_ANYTYPE:
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/* Any operand type will do */
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TypeNeeded = ACPI_TYPE_ANY;
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break;
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/*
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* The more complex cases allow multiple resolved object types
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*/
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case ARGI_STRING:
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/* Need an operand of type ACPI_TYPE_STRING or ACPI_TYPE_BUFFER */
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if ((ACPI_TYPE_STRING != (*StackPtr)->Common.Type) &&
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(ACPI_TYPE_BUFFER != (*StackPtr)->Common.Type))
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{
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DEBUG_PRINT (ACPI_INFO,
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("AmlResolveOperands: Needed [String or Buffer], found [%s] %p\n",
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AcpiCmGetTypeName ((*StackPtr)->Common.Type), *StackPtr));
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return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
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}
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goto NextOperand;
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break;
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case ARGI_DATAOBJECT:
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/*
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* ARGI_DATAOBJECT is only used by the SizeOf operator.
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*
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* The ACPI specification allows SizeOf to return the size of
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* a Buffer, String or Package. However, the MS ACPI.SYS AML
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* Interpreter also allows an Node reference to return without
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* error with a size of 4.
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*/
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/* Need a buffer, string, package or Node reference */
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if (((*StackPtr)->Common.Type != ACPI_TYPE_BUFFER) &&
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((*StackPtr)->Common.Type != ACPI_TYPE_STRING) &&
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((*StackPtr)->Common.Type != ACPI_TYPE_PACKAGE) &&
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((*StackPtr)->Common.Type != INTERNAL_TYPE_REFERENCE))
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{
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DEBUG_PRINT (ACPI_INFO,
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("AmlResolveOperands: Needed [Buf/Str/Pkg/Ref], found [%s] %p\n",
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AcpiCmGetTypeName ((*StackPtr)->Common.Type), *StackPtr));
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return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
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}
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/*
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* If this is a reference, only allow a reference to an Node.
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*/
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if ((*StackPtr)->Common.Type == INTERNAL_TYPE_REFERENCE)
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{
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if (!(*StackPtr)->Reference.Node)
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{
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DEBUG_PRINT (ACPI_INFO,
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("AmlResolveOperands: Needed [Node Reference], found [%p]\n",
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*StackPtr));
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return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
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}
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}
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goto NextOperand;
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break;
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case ARGI_COMPLEXOBJ:
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/* Need a buffer or package */
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if (((*StackPtr)->Common.Type != ACPI_TYPE_BUFFER) &&
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((*StackPtr)->Common.Type != ACPI_TYPE_PACKAGE))
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{
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DEBUG_PRINT (ACPI_INFO,
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("AmlResolveOperands: Needed [Buf/Pkg], found [%s] %p\n",
|
|
AcpiCmGetTypeName ((*StackPtr)->Common.Type), *StackPtr));
|
|
|
|
return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
|
|
}
|
|
goto NextOperand;
|
|
break;
|
|
|
|
|
|
default:
|
|
|
|
/* Unknown type */
|
|
|
|
DEBUG_PRINT (ACPI_ERROR,
|
|
("AmlResolveOperands: Internal error - Unknown ARGI type %X\n",
|
|
ThisArgType));
|
|
|
|
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
|
}
|
|
|
|
|
|
/*
|
|
* Make sure that the original object was resolved to the
|
|
* required object type (Simple cases only).
|
|
*/
|
|
Status = AcpiAmlCheckObjectType (TypeNeeded,
|
|
(*StackPtr)->Common.Type, *StackPtr);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
|
|
|
|
NextOperand:
|
|
/*
|
|
* If more operands needed, decrement StackPtr to point
|
|
* to next operand on stack
|
|
*/
|
|
if (GET_CURRENT_ARG_TYPE (ArgTypes))
|
|
{
|
|
StackPtr--;
|
|
}
|
|
|
|
} /* while (*Types) */
|
|
|
|
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|