forked from KolibriOS/kolibrios
1184 lines
36 KiB
C
1184 lines
36 KiB
C
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/******************************************************************************
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*
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* Module Name: exoparg1 - AML execution - opcodes with 1 argument
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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 - 2010, Intel Corp.
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* All rights 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 __EXOPARG1_C__
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#include "acpi.h"
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#include "accommon.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 "amlcode.h"
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#include "acnamesp.h"
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#define _COMPONENT ACPI_EXECUTER
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ACPI_MODULE_NAME ("exoparg1")
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/*!
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* Naming convention for AML interpreter execution routines.
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*
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* The routines that begin execution of AML opcodes are named with a common
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* convention based upon the number of arguments, the number of target operands,
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* and whether or not a value is returned:
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*
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* AcpiExOpcode_xA_yT_zR
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*
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* Where:
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*
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* xA - ARGUMENTS: The number of arguments (input operands) that are
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* required for this opcode type (0 through 6 args).
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* yT - TARGETS: The number of targets (output operands) that are required
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* for this opcode type (0, 1, or 2 targets).
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* zR - RETURN VALUE: Indicates whether this opcode type returns a value
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* as the function return (0 or 1).
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*
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* The AcpiExOpcode* functions are called via the Dispatcher component with
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* fully resolved operands.
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!*/
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/*******************************************************************************
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*
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* FUNCTION: AcpiExOpcode_0A_0T_1R
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*
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* PARAMETERS: WalkState - Current state (contains AML opcode)
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*
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* RETURN: Status
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*
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* DESCRIPTION: Execute operator with no operands, one return value
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiExOpcode_0A_0T_1R (
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ACPI_WALK_STATE *WalkState)
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{
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ACPI_STATUS Status = AE_OK;
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ACPI_OPERAND_OBJECT *ReturnDesc = NULL;
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ACPI_FUNCTION_TRACE_STR (ExOpcode_0A_0T_1R,
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AcpiPsGetOpcodeName (WalkState->Opcode));
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/* Examine the AML opcode */
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switch (WalkState->Opcode)
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{
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case AML_TIMER_OP: /* Timer () */
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/* Create a return object of type Integer */
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ReturnDesc = AcpiUtCreateIntegerObject (AcpiOsGetTimer ());
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if (!ReturnDesc)
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{
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Status = AE_NO_MEMORY;
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goto Cleanup;
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}
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break;
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default: /* Unknown opcode */
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ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X",
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WalkState->Opcode));
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Status = AE_AML_BAD_OPCODE;
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break;
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}
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Cleanup:
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/* Delete return object on error */
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if ((ACPI_FAILURE (Status)) || WalkState->ResultObj)
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{
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AcpiUtRemoveReference (ReturnDesc);
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WalkState->ResultObj = NULL;
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}
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else
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{
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/* Save the return value */
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WalkState->ResultObj = ReturnDesc;
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}
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return_ACPI_STATUS (Status);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiExOpcode_1A_0T_0R
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*
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* PARAMETERS: WalkState - Current state (contains AML opcode)
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*
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* RETURN: Status
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*
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* DESCRIPTION: Execute Type 1 monadic operator with numeric operand on
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* object stack
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiExOpcode_1A_0T_0R (
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ACPI_WALK_STATE *WalkState)
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{
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ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
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ACPI_STATUS Status = AE_OK;
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ACPI_FUNCTION_TRACE_STR (ExOpcode_1A_0T_0R,
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AcpiPsGetOpcodeName (WalkState->Opcode));
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/* Examine the AML opcode */
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switch (WalkState->Opcode)
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{
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case AML_RELEASE_OP: /* Release (MutexObject) */
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Status = AcpiExReleaseMutex (Operand[0], WalkState);
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break;
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case AML_RESET_OP: /* Reset (EventObject) */
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Status = AcpiExSystemResetEvent (Operand[0]);
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break;
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case AML_SIGNAL_OP: /* Signal (EventObject) */
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Status = AcpiExSystemSignalEvent (Operand[0]);
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break;
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case AML_SLEEP_OP: /* Sleep (MsecTime) */
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Status = AcpiExSystemDoSleep (Operand[0]->Integer.Value);
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break;
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case AML_STALL_OP: /* Stall (UsecTime) */
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Status = AcpiExSystemDoStall ((UINT32) Operand[0]->Integer.Value);
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break;
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case AML_UNLOAD_OP: /* Unload (Handle) */
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Status = AcpiExUnloadTable (Operand[0]);
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break;
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default: /* Unknown opcode */
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ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X",
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WalkState->Opcode));
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Status = AE_AML_BAD_OPCODE;
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break;
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}
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return_ACPI_STATUS (Status);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiExOpcode_1A_1T_0R
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*
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* PARAMETERS: WalkState - Current state (contains AML opcode)
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*
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* RETURN: Status
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*
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* DESCRIPTION: Execute opcode with one argument, one target, and no
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* return value.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiExOpcode_1A_1T_0R (
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ACPI_WALK_STATE *WalkState)
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{
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ACPI_STATUS Status = AE_OK;
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ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
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ACPI_FUNCTION_TRACE_STR (ExOpcode_1A_1T_0R,
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AcpiPsGetOpcodeName (WalkState->Opcode));
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/* Examine the AML opcode */
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switch (WalkState->Opcode)
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{
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case AML_LOAD_OP:
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Status = AcpiExLoadOp (Operand[0], Operand[1], WalkState);
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break;
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default: /* Unknown opcode */
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ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X",
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WalkState->Opcode));
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Status = AE_AML_BAD_OPCODE;
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goto Cleanup;
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}
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Cleanup:
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return_ACPI_STATUS (Status);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiExOpcode_1A_1T_1R
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*
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* PARAMETERS: WalkState - Current state (contains AML opcode)
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*
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* RETURN: Status
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*
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* DESCRIPTION: Execute opcode with one argument, one target, and a
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* return value.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiExOpcode_1A_1T_1R (
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ACPI_WALK_STATE *WalkState)
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{
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ACPI_STATUS Status = AE_OK;
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ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
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ACPI_OPERAND_OBJECT *ReturnDesc = NULL;
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ACPI_OPERAND_OBJECT *ReturnDesc2 = NULL;
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UINT32 Temp32;
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UINT32 i;
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UINT64 PowerOfTen;
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UINT64 Digit;
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ACPI_FUNCTION_TRACE_STR (ExOpcode_1A_1T_1R,
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AcpiPsGetOpcodeName (WalkState->Opcode));
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|
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/* Examine the AML opcode */
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switch (WalkState->Opcode)
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{
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case AML_BIT_NOT_OP:
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case AML_FIND_SET_LEFT_BIT_OP:
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case AML_FIND_SET_RIGHT_BIT_OP:
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case AML_FROM_BCD_OP:
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case AML_TO_BCD_OP:
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case AML_COND_REF_OF_OP:
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/* Create a return object of type Integer for these opcodes */
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ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
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if (!ReturnDesc)
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{
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Status = AE_NO_MEMORY;
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goto Cleanup;
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}
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switch (WalkState->Opcode)
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{
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case AML_BIT_NOT_OP: /* Not (Operand, Result) */
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ReturnDesc->Integer.Value = ~Operand[0]->Integer.Value;
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break;
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|
|
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case AML_FIND_SET_LEFT_BIT_OP: /* FindSetLeftBit (Operand, Result) */
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ReturnDesc->Integer.Value = Operand[0]->Integer.Value;
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/*
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* Acpi specification describes Integer type as a little
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* endian unsigned value, so this boundary condition is valid.
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*/
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for (Temp32 = 0; ReturnDesc->Integer.Value &&
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Temp32 < ACPI_INTEGER_BIT_SIZE; ++Temp32)
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{
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ReturnDesc->Integer.Value >>= 1;
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}
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ReturnDesc->Integer.Value = Temp32;
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break;
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|
|
|
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case AML_FIND_SET_RIGHT_BIT_OP: /* FindSetRightBit (Operand, Result) */
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|
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ReturnDesc->Integer.Value = Operand[0]->Integer.Value;
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|
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/*
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* The Acpi specification describes Integer type as a little
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* endian unsigned value, so this boundary condition is valid.
|
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*/
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for (Temp32 = 0; ReturnDesc->Integer.Value &&
|
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Temp32 < ACPI_INTEGER_BIT_SIZE; ++Temp32)
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{
|
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ReturnDesc->Integer.Value <<= 1;
|
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}
|
|
|
|
/* Since the bit position is one-based, subtract from 33 (65) */
|
|
|
|
ReturnDesc->Integer.Value =
|
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Temp32 == 0 ? 0 : (ACPI_INTEGER_BIT_SIZE + 1) - Temp32;
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break;
|
|
|
|
|
|
case AML_FROM_BCD_OP: /* FromBcd (BCDValue, Result) */
|
|
|
|
/*
|
|
* The 64-bit ACPI integer can hold 16 4-bit BCD characters
|
|
* (if table is 32-bit, integer can hold 8 BCD characters)
|
|
* Convert each 4-bit BCD value
|
|
*/
|
|
PowerOfTen = 1;
|
|
ReturnDesc->Integer.Value = 0;
|
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Digit = Operand[0]->Integer.Value;
|
|
|
|
/* Convert each BCD digit (each is one nybble wide) */
|
|
|
|
for (i = 0; (i < AcpiGbl_IntegerNybbleWidth) && (Digit > 0); i++)
|
|
{
|
|
/* Get the least significant 4-bit BCD digit */
|
|
|
|
Temp32 = ((UINT32) Digit) & 0xF;
|
|
|
|
/* Check the range of the digit */
|
|
|
|
if (Temp32 > 9)
|
|
{
|
|
ACPI_ERROR ((AE_INFO,
|
|
"BCD digit too large (not decimal): 0x%X",
|
|
Temp32));
|
|
|
|
Status = AE_AML_NUMERIC_OVERFLOW;
|
|
goto Cleanup;
|
|
}
|
|
|
|
/* Sum the digit into the result with the current power of 10 */
|
|
|
|
ReturnDesc->Integer.Value +=
|
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(((UINT64) Temp32) * PowerOfTen);
|
|
|
|
/* Shift to next BCD digit */
|
|
|
|
Digit >>= 4;
|
|
|
|
/* Next power of 10 */
|
|
|
|
PowerOfTen *= 10;
|
|
}
|
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break;
|
|
|
|
|
|
case AML_TO_BCD_OP: /* ToBcd (Operand, Result) */
|
|
|
|
ReturnDesc->Integer.Value = 0;
|
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Digit = Operand[0]->Integer.Value;
|
|
|
|
/* Each BCD digit is one nybble wide */
|
|
|
|
for (i = 0; (i < AcpiGbl_IntegerNybbleWidth) && (Digit > 0); i++)
|
|
{
|
|
(void) AcpiUtShortDivide (Digit, 10, &Digit, &Temp32);
|
|
|
|
/*
|
|
* Insert the BCD digit that resides in the
|
|
* remainder from above
|
|
*/
|
|
ReturnDesc->Integer.Value |=
|
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(((UINT64) Temp32) << ACPI_MUL_4 (i));
|
|
}
|
|
|
|
/* Overflow if there is any data left in Digit */
|
|
|
|
if (Digit > 0)
|
|
{
|
|
ACPI_ERROR ((AE_INFO,
|
|
"Integer too large to convert to BCD: 0x%8.8X%8.8X",
|
|
ACPI_FORMAT_UINT64 (Operand[0]->Integer.Value)));
|
|
Status = AE_AML_NUMERIC_OVERFLOW;
|
|
goto Cleanup;
|
|
}
|
|
break;
|
|
|
|
|
|
case AML_COND_REF_OF_OP: /* CondRefOf (SourceObject, Result) */
|
|
|
|
/*
|
|
* This op is a little strange because the internal return value is
|
|
* different than the return value stored in the result descriptor
|
|
* (There are really two return values)
|
|
*/
|
|
if ((ACPI_NAMESPACE_NODE *) Operand[0] == AcpiGbl_RootNode)
|
|
{
|
|
/*
|
|
* This means that the object does not exist in the namespace,
|
|
* return FALSE
|
|
*/
|
|
ReturnDesc->Integer.Value = 0;
|
|
goto Cleanup;
|
|
}
|
|
|
|
/* Get the object reference, store it, and remove our reference */
|
|
|
|
Status = AcpiExGetObjectReference (Operand[0],
|
|
&ReturnDesc2, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
goto Cleanup;
|
|
}
|
|
|
|
Status = AcpiExStore (ReturnDesc2, Operand[1], WalkState);
|
|
AcpiUtRemoveReference (ReturnDesc2);
|
|
|
|
/* The object exists in the namespace, return TRUE */
|
|
|
|
ReturnDesc->Integer.Value = ACPI_UINT64_MAX;
|
|
goto Cleanup;
|
|
|
|
|
|
default:
|
|
/* No other opcodes get here */
|
|
break;
|
|
}
|
|
break;
|
|
|
|
|
|
case AML_STORE_OP: /* Store (Source, Target) */
|
|
|
|
/*
|
|
* A store operand is typically a number, string, buffer or lvalue
|
|
* Be careful about deleting the source object,
|
|
* since the object itself may have been stored.
|
|
*/
|
|
Status = AcpiExStore (Operand[0], Operand[1], WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* It is possible that the Store already produced a return object */
|
|
|
|
if (!WalkState->ResultObj)
|
|
{
|
|
/*
|
|
* Normally, we would remove a reference on the Operand[0]
|
|
* parameter; But since it is being used as the internal return
|
|
* object (meaning we would normally increment it), the two
|
|
* cancel out, and we simply don't do anything.
|
|
*/
|
|
WalkState->ResultObj = Operand[0];
|
|
WalkState->Operands[0] = NULL; /* Prevent deletion */
|
|
}
|
|
return_ACPI_STATUS (Status);
|
|
|
|
|
|
/*
|
|
* ACPI 2.0 Opcodes
|
|
*/
|
|
case AML_COPY_OP: /* Copy (Source, Target) */
|
|
|
|
Status = AcpiUtCopyIobjectToIobject (Operand[0], &ReturnDesc,
|
|
WalkState);
|
|
break;
|
|
|
|
|
|
case AML_TO_DECSTRING_OP: /* ToDecimalString (Data, Result) */
|
|
|
|
Status = AcpiExConvertToString (Operand[0], &ReturnDesc,
|
|
ACPI_EXPLICIT_CONVERT_DECIMAL);
|
|
if (ReturnDesc == Operand[0])
|
|
{
|
|
/* No conversion performed, add ref to handle return value */
|
|
AcpiUtAddReference (ReturnDesc);
|
|
}
|
|
break;
|
|
|
|
|
|
case AML_TO_HEXSTRING_OP: /* ToHexString (Data, Result) */
|
|
|
|
Status = AcpiExConvertToString (Operand[0], &ReturnDesc,
|
|
ACPI_EXPLICIT_CONVERT_HEX);
|
|
if (ReturnDesc == Operand[0])
|
|
{
|
|
/* No conversion performed, add ref to handle return value */
|
|
AcpiUtAddReference (ReturnDesc);
|
|
}
|
|
break;
|
|
|
|
|
|
case AML_TO_BUFFER_OP: /* ToBuffer (Data, Result) */
|
|
|
|
Status = AcpiExConvertToBuffer (Operand[0], &ReturnDesc);
|
|
if (ReturnDesc == Operand[0])
|
|
{
|
|
/* No conversion performed, add ref to handle return value */
|
|
AcpiUtAddReference (ReturnDesc);
|
|
}
|
|
break;
|
|
|
|
|
|
case AML_TO_INTEGER_OP: /* ToInteger (Data, Result) */
|
|
|
|
Status = AcpiExConvertToInteger (Operand[0], &ReturnDesc,
|
|
ACPI_ANY_BASE);
|
|
if (ReturnDesc == Operand[0])
|
|
{
|
|
/* No conversion performed, add ref to handle return value */
|
|
AcpiUtAddReference (ReturnDesc);
|
|
}
|
|
break;
|
|
|
|
|
|
case AML_SHIFT_LEFT_BIT_OP: /* ShiftLeftBit (Source, BitNum) */
|
|
case AML_SHIFT_RIGHT_BIT_OP: /* ShiftRightBit (Source, BitNum) */
|
|
|
|
/* These are two obsolete opcodes */
|
|
|
|
ACPI_ERROR ((AE_INFO,
|
|
"%s is obsolete and not implemented",
|
|
AcpiPsGetOpcodeName (WalkState->Opcode)));
|
|
Status = AE_SUPPORT;
|
|
goto Cleanup;
|
|
|
|
|
|
default: /* Unknown opcode */
|
|
|
|
ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X",
|
|
WalkState->Opcode));
|
|
Status = AE_AML_BAD_OPCODE;
|
|
goto Cleanup;
|
|
}
|
|
|
|
if (ACPI_SUCCESS (Status))
|
|
{
|
|
/* Store the return value computed above into the target object */
|
|
|
|
Status = AcpiExStore (ReturnDesc, Operand[1], WalkState);
|
|
}
|
|
|
|
|
|
Cleanup:
|
|
|
|
/* Delete return object on error */
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
AcpiUtRemoveReference (ReturnDesc);
|
|
}
|
|
|
|
/* Save return object on success */
|
|
|
|
else if (!WalkState->ResultObj)
|
|
{
|
|
WalkState->ResultObj = ReturnDesc;
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiExOpcode_1A_0T_1R
|
|
*
|
|
* PARAMETERS: WalkState - Current state (contains AML opcode)
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Execute opcode with one argument, no target, and a return value
|
|
*
|
|
******************************************************************************/
|
|
|
|
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;
|
|
UINT64 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 = AcpiUtCreateIntegerObject ((UINT64) 0);
|
|
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_UINT64_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 = AcpiUtCreateIntegerObject ((UINT64) Type);
|
|
if (!ReturnDesc)
|
|
{
|
|
Status = AE_NO_MEMORY;
|
|
goto Cleanup;
|
|
}
|
|
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 = AcpiUtCreateIntegerObject (Value);
|
|
if (!ReturnDesc)
|
|
{
|
|
Status = AE_NO_MEMORY;
|
|
goto Cleanup;
|
|
}
|
|
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 &&
|
|
((TempDesc->Common.Type == ACPI_TYPE_STRING) ||
|
|
(TempDesc->Common.Type == ACPI_TYPE_LOCAL_REFERENCE)))
|
|
{
|
|
Operand[0] = TempDesc;
|
|
AcpiUtAddReference (TempDesc);
|
|
}
|
|
else
|
|
{
|
|
Status = AE_AML_OPERAND_TYPE;
|
|
goto Cleanup;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
switch ((Operand[0])->Common.Type)
|
|
{
|
|
case ACPI_TYPE_LOCAL_REFERENCE:
|
|
/*
|
|
* This is a DerefOf (LocalX | ArgX)
|
|
*
|
|
* Must resolve/dereference the local/arg reference first
|
|
*/
|
|
switch (Operand[0]->Reference.Class)
|
|
{
|
|
case ACPI_REFCLASS_LOCAL:
|
|
case ACPI_REFCLASS_ARG:
|
|
|
|
/* Set Operand[0] to the value of the local/arg */
|
|
|
|
Status = AcpiDsMethodDataGetValue (
|
|
Operand[0]->Reference.Class,
|
|
Operand[0]->Reference.Value,
|
|
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 ACPI_REFCLASS_REFOF:
|
|
|
|
/* 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 ((Operand[0])->Common.Type == 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.Class)
|
|
{
|
|
case ACPI_REFCLASS_INDEX:
|
|
|
|
/*
|
|
* 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!
|
|
*
|
|
* 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 = AcpiUtCreateIntegerObject ((UINT64)
|
|
TempDesc->Buffer.Pointer[Operand[0]->Reference.Value]);
|
|
if (!ReturnDesc)
|
|
{
|
|
Status = AE_NO_MEMORY;
|
|
goto Cleanup;
|
|
}
|
|
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 0x%X in reference object %p",
|
|
Operand[0]->Reference.TargetType, Operand[0]));
|
|
Status = AE_AML_OPERAND_TYPE;
|
|
goto Cleanup;
|
|
}
|
|
break;
|
|
|
|
|
|
case ACPI_REFCLASS_REFOF:
|
|
|
|
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 class in reference(%p) - 0x%2.2X",
|
|
Operand[0], Operand[0]->Reference.Class));
|
|
|
|
Status = AE_TYPE;
|
|
goto Cleanup;
|
|
}
|
|
}
|
|
break;
|
|
|
|
|
|
default:
|
|
|
|
ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%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);
|
|
}
|
|
|