715 lines
22 KiB
C
715 lines
22 KiB
C
/******************************************************************************
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*
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* Module Name: exoparg2 - AML execution - opcodes with 2 arguments
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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 __EXOPARG2_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 "acinterp.h"
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#include "acevents.h"
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#include "amlcode.h"
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#define _COMPONENT ACPI_EXECUTER
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ACPI_MODULE_NAME ("exoparg2")
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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 (1 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_2A_0T_0R
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*
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* PARAMETERS: WalkState - Current walk state
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*
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* RETURN: Status
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*
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* DESCRIPTION: Execute opcode with two arguments, no target, and no return
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* value.
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*
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* ALLOCATION: Deletes both operands
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiExOpcode_2A_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_NAMESPACE_NODE *Node;
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UINT32 Value;
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ACPI_STATUS Status = AE_OK;
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ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_0T_0R,
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AcpiPsGetOpcodeName (WalkState->Opcode));
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/* Examine the opcode */
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switch (WalkState->Opcode)
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{
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case AML_NOTIFY_OP: /* Notify (NotifyObject, NotifyValue) */
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/* The first operand is a namespace node */
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Node = (ACPI_NAMESPACE_NODE *) Operand[0];
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/* Second value is the notify value */
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Value = (UINT32) Operand[1]->Integer.Value;
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/* Are notifies allowed on this object? */
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if (!AcpiEvIsNotifyObject (Node))
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{
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ACPI_ERROR ((AE_INFO,
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"Unexpected notify object type [%s]",
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AcpiUtGetTypeName (Node->Type)));
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Status = AE_AML_OPERAND_TYPE;
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break;
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}
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/*
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* Dispatch the notify to the appropriate handler
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* NOTE: the request is queued for execution after this method
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* completes. The notify handlers are NOT invoked synchronously
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* from this thread -- because handlers may in turn run other
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* control methods.
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*/
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Status = AcpiEvQueueNotifyRequest (Node, Value);
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break;
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default:
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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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}
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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_2A_2T_1R
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*
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* PARAMETERS: WalkState - Current walk state
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*
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* RETURN: Status
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*
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* DESCRIPTION: Execute a dyadic operator (2 operands) with 2 output targets
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* and one implicit return value.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiExOpcode_2A_2T_1R (
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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_OPERAND_OBJECT *ReturnDesc1 = NULL;
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ACPI_OPERAND_OBJECT *ReturnDesc2 = NULL;
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ACPI_STATUS Status;
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ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_2T_1R,
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AcpiPsGetOpcodeName (WalkState->Opcode));
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/* Execute the opcode */
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switch (WalkState->Opcode)
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{
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case AML_DIVIDE_OP:
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/* Divide (Dividend, Divisor, RemainderResult QuotientResult) */
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ReturnDesc1 = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
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if (!ReturnDesc1)
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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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ReturnDesc2 = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
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if (!ReturnDesc2)
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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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/* Quotient to ReturnDesc1, remainder to ReturnDesc2 */
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Status = AcpiUtDivide (Operand[0]->Integer.Value,
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Operand[1]->Integer.Value,
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&ReturnDesc1->Integer.Value,
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&ReturnDesc2->Integer.Value);
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if (ACPI_FAILURE (Status))
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{
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goto Cleanup;
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}
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break;
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default:
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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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/* Store the results to the target reference operands */
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Status = AcpiExStore (ReturnDesc2, Operand[2], WalkState);
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if (ACPI_FAILURE (Status))
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{
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goto Cleanup;
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}
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Status = AcpiExStore (ReturnDesc1, Operand[3], WalkState);
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if (ACPI_FAILURE (Status))
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{
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goto Cleanup;
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}
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Cleanup:
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/*
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* Since the remainder is not returned indirectly, remove a reference to
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* it. Only the quotient is returned indirectly.
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*/
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AcpiUtRemoveReference (ReturnDesc2);
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if (ACPI_FAILURE (Status))
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{
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/* Delete the return object */
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AcpiUtRemoveReference (ReturnDesc1);
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}
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/* Save return object (the remainder) on success */
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else
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{
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WalkState->ResultObj = ReturnDesc1;
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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_2A_1T_1R
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*
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* PARAMETERS: WalkState - Current walk state
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*
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* RETURN: Status
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*
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* DESCRIPTION: Execute opcode with two arguments, one target, and a return
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* value.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiExOpcode_2A_1T_1R (
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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_OPERAND_OBJECT *ReturnDesc = NULL;
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UINT64 Index;
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ACPI_STATUS Status = AE_OK;
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ACPI_SIZE Length;
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ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_1T_1R,
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AcpiPsGetOpcodeName (WalkState->Opcode));
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/* Execute the opcode */
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if (WalkState->OpInfo->Flags & AML_MATH)
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{
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/* All simple math opcodes (add, etc.) */
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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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ReturnDesc->Integer.Value = AcpiExDoMathOp (WalkState->Opcode,
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Operand[0]->Integer.Value,
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Operand[1]->Integer.Value);
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goto StoreResultToTarget;
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}
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switch (WalkState->Opcode)
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{
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case AML_MOD_OP: /* Mod (Dividend, Divisor, RemainderResult (ACPI 2.0) */
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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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/* ReturnDesc will contain the remainder */
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Status = AcpiUtDivide (Operand[0]->Integer.Value,
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Operand[1]->Integer.Value,
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NULL,
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&ReturnDesc->Integer.Value);
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break;
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case AML_CONCAT_OP: /* Concatenate (Data1, Data2, Result) */
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Status = AcpiExDoConcatenate (Operand[0], Operand[1],
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&ReturnDesc, WalkState);
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break;
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case AML_TO_STRING_OP: /* ToString (Buffer, Length, Result) (ACPI 2.0) */
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/*
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* Input object is guaranteed to be a buffer at this point (it may have
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* been converted.) Copy the raw buffer data to a new object of
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* type String.
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*/
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/*
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* Get the length of the new string. It is the smallest of:
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* 1) Length of the input buffer
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* 2) Max length as specified in the ToString operator
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* 3) Length of input buffer up to a zero byte (null terminator)
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*
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* NOTE: A length of zero is ok, and will create a zero-length, null
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* terminated string.
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*/
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Length = 0;
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while ((Length < Operand[0]->Buffer.Length) &&
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(Length < Operand[1]->Integer.Value) &&
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(Operand[0]->Buffer.Pointer[Length]))
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{
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Length++;
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}
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/* Allocate a new string object */
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ReturnDesc = AcpiUtCreateStringObject (Length);
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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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/*
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* Copy the raw buffer data with no transform.
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* (NULL terminated already)
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*/
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ACPI_MEMCPY (ReturnDesc->String.Pointer,
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Operand[0]->Buffer.Pointer, Length);
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break;
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case AML_CONCAT_RES_OP:
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/* ConcatenateResTemplate (Buffer, Buffer, Result) (ACPI 2.0) */
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Status = AcpiExConcatTemplate (Operand[0], Operand[1],
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&ReturnDesc, WalkState);
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break;
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case AML_INDEX_OP: /* Index (Source Index Result) */
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/* Create the internal return object */
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ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_REFERENCE);
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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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/* Initialize the Index reference object */
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Index = Operand[1]->Integer.Value;
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ReturnDesc->Reference.Value = (UINT32) Index;
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ReturnDesc->Reference.Class = ACPI_REFCLASS_INDEX;
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/*
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* At this point, the Source operand is a String, Buffer, or Package.
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* Verify that the index is within range.
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*/
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switch ((Operand[0])->Common.Type)
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{
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case ACPI_TYPE_STRING:
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if (Index >= Operand[0]->String.Length)
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{
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Status = AE_AML_STRING_LIMIT;
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}
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ReturnDesc->Reference.TargetType = ACPI_TYPE_BUFFER_FIELD;
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break;
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case ACPI_TYPE_BUFFER:
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if (Index >= Operand[0]->Buffer.Length)
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{
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Status = AE_AML_BUFFER_LIMIT;
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}
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ReturnDesc->Reference.TargetType = ACPI_TYPE_BUFFER_FIELD;
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break;
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case ACPI_TYPE_PACKAGE:
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if (Index >= Operand[0]->Package.Count)
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{
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Status = AE_AML_PACKAGE_LIMIT;
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}
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ReturnDesc->Reference.TargetType = ACPI_TYPE_PACKAGE;
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ReturnDesc->Reference.Where = &Operand[0]->Package.Elements [Index];
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break;
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default:
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Status = AE_AML_INTERNAL;
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goto Cleanup;
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}
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/* Failure means that the Index was beyond the end of the object */
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if (ACPI_FAILURE (Status))
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{
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ACPI_EXCEPTION ((AE_INFO, Status,
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"Index (0x%8.8X%8.8X) is beyond end of object",
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ACPI_FORMAT_UINT64 (Index)));
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goto Cleanup;
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}
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/*
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* Save the target object and add a reference to it for the life
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* of the index
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*/
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ReturnDesc->Reference.Object = Operand[0];
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AcpiUtAddReference (Operand[0]);
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/* Store the reference to the Target */
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Status = AcpiExStore (ReturnDesc, Operand[2], WalkState);
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/* Return the reference */
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WalkState->ResultObj = ReturnDesc;
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goto Cleanup;
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|
|
|
|
default:
|
|
|
|
ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X",
|
|
WalkState->Opcode));
|
|
Status = AE_AML_BAD_OPCODE;
|
|
break;
|
|
}
|
|
|
|
|
|
StoreResultToTarget:
|
|
|
|
if (ACPI_SUCCESS (Status))
|
|
{
|
|
/*
|
|
* Store the result of the operation (which is now in ReturnDesc) into
|
|
* the Target descriptor.
|
|
*/
|
|
Status = AcpiExStore (ReturnDesc, Operand[2], WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
goto Cleanup;
|
|
}
|
|
|
|
if (!WalkState->ResultObj)
|
|
{
|
|
WalkState->ResultObj = ReturnDesc;
|
|
}
|
|
}
|
|
|
|
|
|
Cleanup:
|
|
|
|
/* Delete return object on error */
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
AcpiUtRemoveReference (ReturnDesc);
|
|
WalkState->ResultObj = NULL;
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiExOpcode_2A_0T_1R
|
|
*
|
|
* PARAMETERS: WalkState - Current walk state
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Execute opcode with 2 arguments, no target, and a return value
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiExOpcode_2A_0T_1R (
|
|
ACPI_WALK_STATE *WalkState)
|
|
{
|
|
ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
|
|
ACPI_OPERAND_OBJECT *ReturnDesc = NULL;
|
|
ACPI_STATUS Status = AE_OK;
|
|
BOOLEAN LogicalResult = FALSE;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_0T_1R,
|
|
AcpiPsGetOpcodeName (WalkState->Opcode));
|
|
|
|
|
|
/* Create the internal return object */
|
|
|
|
ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
|
|
if (!ReturnDesc)
|
|
{
|
|
Status = AE_NO_MEMORY;
|
|
goto Cleanup;
|
|
}
|
|
|
|
/* Execute the Opcode */
|
|
|
|
if (WalkState->OpInfo->Flags & AML_LOGICAL_NUMERIC)
|
|
{
|
|
/* LogicalOp (Operand0, Operand1) */
|
|
|
|
Status = AcpiExDoLogicalNumericOp (WalkState->Opcode,
|
|
Operand[0]->Integer.Value, Operand[1]->Integer.Value,
|
|
&LogicalResult);
|
|
goto StoreLogicalResult;
|
|
}
|
|
else if (WalkState->OpInfo->Flags & AML_LOGICAL)
|
|
{
|
|
/* LogicalOp (Operand0, Operand1) */
|
|
|
|
Status = AcpiExDoLogicalOp (WalkState->Opcode, Operand[0],
|
|
Operand[1], &LogicalResult);
|
|
goto StoreLogicalResult;
|
|
}
|
|
|
|
switch (WalkState->Opcode)
|
|
{
|
|
case AML_ACQUIRE_OP: /* Acquire (MutexObject, Timeout) */
|
|
|
|
Status = AcpiExAcquireMutex (Operand[1], Operand[0], WalkState);
|
|
if (Status == AE_TIME)
|
|
{
|
|
LogicalResult = TRUE; /* TRUE = Acquire timed out */
|
|
Status = AE_OK;
|
|
}
|
|
break;
|
|
|
|
|
|
case AML_WAIT_OP: /* Wait (EventObject, Timeout) */
|
|
|
|
Status = AcpiExSystemWaitEvent (Operand[1], Operand[0]);
|
|
if (Status == AE_TIME)
|
|
{
|
|
LogicalResult = TRUE; /* TRUE, Wait timed out */
|
|
Status = AE_OK;
|
|
}
|
|
break;
|
|
|
|
|
|
default:
|
|
|
|
ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X",
|
|
WalkState->Opcode));
|
|
Status = AE_AML_BAD_OPCODE;
|
|
goto Cleanup;
|
|
}
|
|
|
|
|
|
StoreLogicalResult:
|
|
/*
|
|
* Set return value to according to LogicalResult. logical TRUE (all ones)
|
|
* Default is FALSE (zero)
|
|
*/
|
|
if (LogicalResult)
|
|
{
|
|
ReturnDesc->Integer.Value = ACPI_UINT64_MAX;
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
|