exoparg2.c revision 30082d0cc16bf5799269ca464a219de900f519cd
/******************************************************************************
*
* Module Name: exoparg2 - AML execution - opcodes with 2 arguments
* $Revision: 1.139 $
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2006, Intel Corp.
* All rights reserved.
*
* 2. License
*
* 2.1. This is your license from Intel Corp. under its intellectual property
* rights. You may have additional license terms from the party that provided
* you this software, covering your right to use that party's intellectual
* property rights.
*
* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
* copy of the source code appearing in this file ("Covered Code") an
* irrevocable, perpetual, worldwide license under Intel's copyrights in the
* base code distributed originally by Intel ("Original Intel Code") to copy,
* make derivatives, distribute, use and display any portion of the Covered
* Code in any form, with the right to sublicense such rights; and
*
* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
* license (with the right to sublicense), under only those claims of Intel
* patents that are infringed by the Original Intel Code, to make, use, sell,
* offer to sell, and import the Covered Code and derivative works thereof
* solely to the minimum extent necessary to exercise the above copyright
* license, and in no event shall the patent license extend to any additions
* to or modifications of the Original Intel Code. No other license or right
* is granted directly or by implication, estoppel or otherwise;
*
* The above copyright and patent license is granted only if the following
* conditions are met:
*
* 3. Conditions
*
* 3.1. Redistribution of Source with Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification with rights to further distribute source must include
* the above Copyright Notice, the above License, this list of Conditions,
* and the following Disclaimer and Export Compliance provision. In addition,
* Licensee must cause all Covered Code to which Licensee contributes to
* contain a file documenting the changes Licensee made to create that Covered
* Code and the date of any change. Licensee must include in that file the
* documentation of any changes made by any predecessor Licensee. Licensee
* must include a prominent statement that the modification is derived,
* directly or indirectly, from Original Intel Code.
*
* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification without rights to further distribute source must
* include the following Disclaimer and Export Compliance provision in the
* addition, Licensee may not authorize further sublicense of source of any
* portion of the Covered Code, and must include terms to the effect that the
* license from Licensee to its licensee is limited to the intellectual
* property embodied in the software Licensee provides to its licensee, and
* not to intellectual property embodied in modifications its licensee may
* make.
*
* 3.3. Redistribution of Executable. Redistribution in executable form of any
* substantial portion of the Covered Code or modification must reproduce the
* above Copyright Notice, and the following Disclaimer and Export Compliance
* distribution.
*
* 3.4. Intel retains all right, title, and interest in and to the Original
* Intel Code.
*
* 3.5. Neither the name Intel nor any other trademark owned or controlled by
* Intel shall be used in advertising or otherwise to promote the sale, use or
* other dealings in products derived from or relating to the Covered Code
* without prior written authorization from Intel.
*
* 4. Disclaimer and Export Compliance
*
* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
* PARTICULAR PURPOSE.
*
* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
* LIMITED REMEDY.
*
* 4.3. Licensee shall not export, either directly or indirectly, any of this
* software or system incorporating such software without first obtaining any
* required license or other approval from the U. S. Department of Commerce or
* any other agency or department of the United States Government. In the
* event Licensee exports any such software from the United States or
* re-exports any such software from a foreign destination, Licensee shall
* compliance with all laws, regulations, orders, or other restrictions of the
* U.S. Export Administration Regulations. Licensee agrees that neither it nor
* software, or service, directly or indirectly, to any country for which the
* United States government or any agency thereof requires an export license,
* other governmental approval, or letter of assurance, without first obtaining
* such license, approval or letter.
*
*****************************************************************************/
#define __EXOPARG2_C__
#include "acpi.h"
#include "acparser.h"
#include "acinterp.h"
#include "acevents.h"
#include "amlcode.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME ("exoparg2")
/*!
* Naming convention for AML interpreter execution routines.
*
* The routines that begin execution of AML opcodes are named with a common
* convention based upon the number of arguments, the number of target operands,
* and whether or not a value is returned:
*
* AcpiExOpcode_xA_yT_zR
*
* Where:
*
* xA - ARGUMENTS: The number of arguments (input operands) that are
* required for this opcode type (1 through 6 args).
* yT - TARGETS: The number of targets (output operands) that are required
* for this opcode type (0, 1, or 2 targets).
* zR - RETURN VALUE: Indicates whether this opcode type returns a value
* as the function return (0 or 1).
*
* The AcpiExOpcode* functions are called via the Dispatcher component with
* fully resolved operands.
!*/
/*******************************************************************************
*
* FUNCTION: AcpiExOpcode_2A_0T_0R
*
* PARAMETERS: WalkState - Current walk state
*
* RETURN: Status
*
* DESCRIPTION: Execute opcode with two arguments, no target, and no return
* value.
*
* ALLOCATION: Deletes both operands
*
******************************************************************************/
{
ACPI_FUNCTION_TRACE_STR ("ExOpcode_2A_0T_0R",
/* Examine the opcode */
{
case AML_NOTIFY_OP: /* Notify (NotifyObject, NotifyValue) */
/* The first operand is a namespace node */
/* Second value is the notify value */
/* Are notifies allowed on this object? */
if (!AcpiEvIsNotifyObject (Node))
{
"Unexpected notify object type [%s]",
break;
}
#ifdef ACPI_GPE_NOTIFY_CHECK
/*
* don't receive any "DeviceWake" Notifies from a GPE _Lxx or _Exx
* GPE method during system runtime. If we do, the GPE is marked
* as "wake-only" and disabled.
*
* 1) Is the Notify() value == DeviceWake?
* 2) Is this a GPE deferred method? (An _Lxx or _Exx method)
* 3) Did the original GPE happen at system runtime?
* (versus during wake)
*
* If all three cases are true, this is a wake-only GPE that should
* be disabled at runtime.
*/
{
if (ACPI_FAILURE (Status))
{
/* AE_WAKE_ONLY_GPE only error, means ignore this notify */
}
}
#endif
/*
* Dispatch the notify to the appropriate handler
* NOTE: the request is queued for execution after this method
* completes. The notify handlers are NOT invoked synchronously
* from this thread -- because handlers may in turn run other
* control methods.
*/
break;
default:
}
}
/*******************************************************************************
*
* FUNCTION: AcpiExOpcode_2A_2T_1R
*
* PARAMETERS: WalkState - Current walk state
*
* RETURN: Status
*
* DESCRIPTION: Execute a dyadic operator (2 operands) with 2 output targets
* and one implicit return value.
*
******************************************************************************/
{
ACPI_FUNCTION_TRACE_STR ("ExOpcode_2A_2T_1R",
/* Execute the opcode */
{
case AML_DIVIDE_OP:
/* Divide (Dividend, Divisor, RemainderResult QuotientResult) */
if (!ReturnDesc1)
{
goto Cleanup;
}
if (!ReturnDesc2)
{
goto Cleanup;
}
/* Quotient to ReturnDesc1, remainder to ReturnDesc2 */
if (ACPI_FAILURE (Status))
{
goto Cleanup;
}
break;
default:
goto Cleanup;
}
/* Store the results to the target reference operands */
if (ACPI_FAILURE (Status))
{
goto Cleanup;
}
if (ACPI_FAILURE (Status))
{
goto Cleanup;
}
/* Return the remainder */
/*
* Since the remainder is not returned indirectly, remove a reference to
* it. Only the quotient is returned indirectly.
*/
if (ACPI_FAILURE (Status))
{
/* Delete the return object */
}
}
/*******************************************************************************
*
* FUNCTION: AcpiExOpcode_2A_1T_1R
*
* PARAMETERS: WalkState - Current walk state
*
* RETURN: Status
*
* DESCRIPTION: Execute opcode with two arguments, one target, and a return
* value.
*
******************************************************************************/
{
ACPI_FUNCTION_TRACE_STR ("ExOpcode_2A_1T_1R",
/* Execute the opcode */
{
/* All simple math opcodes (add, etc.) */
if (!ReturnDesc)
{
goto Cleanup;
}
goto StoreResultToTarget;
}
{
case AML_MOD_OP: /* Mod (Dividend, Divisor, RemainderResult (ACPI 2.0) */
if (!ReturnDesc)
{
goto Cleanup;
}
/* ReturnDesc will contain the remainder */
NULL,
break;
case AML_CONCAT_OP: /* Concatenate (Data1, Data2, Result) */
&ReturnDesc, WalkState);
break;
case AML_TO_STRING_OP: /* ToString (Buffer, Length, Result) (ACPI 2.0) */
/*
* Input object is guaranteed to be a buffer at this point (it may have
* been converted.) Copy the raw buffer data to a new object of
* type String.
*/
/*
* Get the length of the new string. It is the smallest of:
* 1) Length of the input buffer
* 2) Max length as specified in the ToString operator
* 3) Length of input buffer up to a zero byte (null terminator)
*
* NOTE: A length of zero is ok, and will create a zero-length, null
* terminated string.
*/
Length = 0;
{
Length++;
}
/* Allocate a new string object */
if (!ReturnDesc)
{
goto Cleanup;
}
/*
* Copy the raw buffer data with no transform.
* (NULL terminated already)
*/
break;
case AML_CONCAT_RES_OP:
/* ConcatenateResTemplate (Buffer, Buffer, Result) (ACPI 2.0) */
&ReturnDesc, WalkState);
break;
case AML_INDEX_OP: /* Index (Source Index Result) */
/* Create the internal return object */
if (!ReturnDesc)
{
goto Cleanup;
}
/* Initialize the Index reference object */
/*
* At this point, the Source operand is a String, Buffer, or Package.
* Verify that the index is within range.
*/
switch (ACPI_GET_OBJECT_TYPE (Operand[0]))
{
case ACPI_TYPE_STRING:
{
}
break;
case ACPI_TYPE_BUFFER:
{
}
break;
case ACPI_TYPE_PACKAGE:
{
}
break;
default:
goto Cleanup;
}
/* Failure means that the Index was beyond the end of the object */
if (ACPI_FAILURE (Status))
{
"Index (%X%8.8X) is beyond end of object",
ACPI_FORMAT_UINT64 (Index)));
goto Cleanup;
}
/*
* of the index
*/
AcpiUtAddReference (Operand[0]);
/* Store the reference to the Target */
/* Return the reference */
goto Cleanup;
default:
break;
}
if (ACPI_SUCCESS (Status))
{
/*
* Store the result of the operation (which is now in ReturnDesc) into
* the Target descriptor.
*/
if (ACPI_FAILURE (Status))
{
goto Cleanup;
}
{
}
}
/* Delete return object on error */
if (ACPI_FAILURE (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_FUNCTION_TRACE_STR ("ExOpcode_2A_0T_1R",
/* Create the internal return object */
if (!ReturnDesc)
{
goto Cleanup;
}
/* Execute the Opcode */
{
/* LogicalOp (Operand0, Operand1) */
goto StoreLogicalResult;
}
{
/* LogicalOp (Operand0, Operand1) */
goto StoreLogicalResult;
}
{
case AML_ACQUIRE_OP: /* Acquire (MutexObject, Timeout) */
{
}
break;
case AML_WAIT_OP: /* Wait (EventObject, Timeout) */
{
}
break;
default:
goto Cleanup;
}
/*
* Set return value to according to LogicalResult. logical TRUE (all ones)
* Default is FALSE (zero)
*/
if (LogicalResult)
{
}
/* Delete return object on error */
if (ACPI_FAILURE (Status))
{
}
}