988 lines
32 KiB
C
988 lines
32 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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* xRevision: 146 $
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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 - 2002, 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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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: exoparg1.c,v 1.3 2002/12/23 00:22:11 kanaoka Exp $");
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#define __EXOPARG1_C__
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#include "acpi.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 (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_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", 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 = AcpiExSystemDoSuspend ((UINT32) 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_REPORT_ERROR (("AcpiExOpcode_1A_0T_0R: Unknown opcode %X\n",
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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", 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_REPORT_ERROR (("AcpiExOpcode_1A_1T_0R: Unknown opcode %X\n",
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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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UINT32 j;
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ACPI_INTEGER Digit;
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ACPI_FUNCTION_TRACE_STR ("ExOpcode_1A_1T_1R", 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_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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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 && 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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case AML_FIND_SET_RIGHT_BIT_OP: /* FindSetRightBit (Operand, Result) */
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ReturnDesc->Integer.Value = Operand[0]->Integer.Value;
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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 && 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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/* Since the bit position is one-based, subtract from 33 (65) */
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ReturnDesc->Integer.Value = Temp32 == 0 ? 0 : (ACPI_INTEGER_BIT_SIZE + 1) - Temp32;
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break;
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case AML_FROM_BCD_OP: /* FromBcd (BCDValue, Result) */
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/*
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* The 64-bit ACPI integer can hold 16 4-bit BCD integers
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*/
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ReturnDesc->Integer.Value = 0;
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for (i = 0; i < ACPI_MAX_BCD_DIGITS; i++)
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{
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/* Get one BCD digit */
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Digit = (ACPI_INTEGER) ((Operand[0]->Integer.Value >> (i * 4)) & 0xF);
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/* Check the range of the digit */
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if (Digit > 9)
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{
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ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "BCD digit too large: %d\n",
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(UINT32) Digit));
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Status = AE_AML_NUMERIC_OVERFLOW;
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goto Cleanup;
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}
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if (Digit > 0)
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{
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/* Sum into the result with the appropriate power of 10 */
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for (j = 0; j < i; j++)
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{
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Digit *= 10;
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}
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ReturnDesc->Integer.Value += Digit;
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}
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}
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break;
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case AML_TO_BCD_OP: /* ToBcd (Operand, Result) */
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if (Operand[0]->Integer.Value > ACPI_MAX_BCD_VALUE)
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{
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ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "BCD overflow: %8.8X%8.8X\n",
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ACPI_HIDWORD(Operand[0]->Integer.Value),
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ACPI_LODWORD(Operand[0]->Integer.Value)));
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Status = AE_AML_NUMERIC_OVERFLOW;
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goto Cleanup;
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}
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ReturnDesc->Integer.Value = 0;
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for (i = 0; i < ACPI_MAX_BCD_DIGITS; i++)
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{
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/* Divide by nth factor of 10 */
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Temp32 = 0;
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Digit = Operand[0]->Integer.Value;
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for (j = 0; j < i; j++)
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{
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(void) AcpiUtShortDivide (&Digit, 10, &Digit, &Temp32);
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}
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/* Create the BCD digit from the remainder above */
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if (Digit > 0)
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{
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ReturnDesc->Integer.Value += ((ACPI_INTEGER) Temp32 << (i * 4));
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}
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}
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break;
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case AML_COND_REF_OF_OP: /* CondRefOf (SourceObject, Result) */
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/*
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* This op is a little strange because the internal return value is
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* different than the return value stored in the result descriptor
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* (There are really two return values)
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*/
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if ((ACPI_NAMESPACE_NODE *) Operand[0] == AcpiGbl_RootNode)
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{
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/*
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* This means that the object does not exist in the namespace,
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* return FALSE
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*/
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ReturnDesc->Integer.Value = 0;
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goto Cleanup;
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}
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/* Get the object reference, store it, and remove our reference */
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Status = AcpiExGetObjectReference (Operand[0], &ReturnDesc2, 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 (ReturnDesc2, Operand[1], WalkState);
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AcpiUtRemoveReference (ReturnDesc2);
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/* The object exists in the namespace, return TRUE */
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ReturnDesc->Integer.Value = ACPI_INTEGER_MAX;
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goto Cleanup;
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default:
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/* No other opcodes get here */
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break;
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}
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break;
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case AML_STORE_OP: /* Store (Source, Target) */
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/*
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* A store operand is typically a number, string, buffer or lvalue
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* Be careful about deleting the source object,
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* since the object itself may have been stored.
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*/
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Status = AcpiExStore (Operand[0], Operand[1], WalkState);
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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/* It is possible that the Store already produced a return object */
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if (!WalkState->ResultObj)
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{
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/*
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* Normally, we would remove a reference on the Operand[0] parameter;
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* But since it is being used as the internal return object
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* (meaning we would normally increment it), the two cancel out,
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* and we simply don't do anything.
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*/
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WalkState->ResultObj = Operand[0];
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WalkState->Operands[0] = NULL; /* Prevent deletion */
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}
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return_ACPI_STATUS (Status);
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/*
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* ACPI 2.0 Opcodes
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*/
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case AML_COPY_OP: /* Copy (Source, Target) */
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Status = AcpiUtCopyIobjectToIobject (Operand[0], &ReturnDesc, WalkState);
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break;
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case AML_TO_DECSTRING_OP: /* ToDecimalString (Data, Result) */
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Status = AcpiExConvertToString (Operand[0], &ReturnDesc, 10, ACPI_UINT32_MAX, WalkState);
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break;
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case AML_TO_HEXSTRING_OP: /* ToHexString (Data, Result) */
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|
|
Status = AcpiExConvertToString (Operand[0], &ReturnDesc, 16, ACPI_UINT32_MAX, WalkState);
|
|
break;
|
|
|
|
|
|
case AML_TO_BUFFER_OP: /* ToBuffer (Data, Result) */
|
|
|
|
Status = AcpiExConvertToBuffer (Operand[0], &ReturnDesc, WalkState);
|
|
break;
|
|
|
|
|
|
case AML_TO_INTEGER_OP: /* ToInteger (Data, Result) */
|
|
|
|
Status = AcpiExConvertToInteger (Operand[0], &ReturnDesc, WalkState);
|
|
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_DEBUG_PRINT ((ACPI_DB_ERROR, "%s is obsolete and not implemented\n",
|
|
AcpiPsGetOpcodeName (WalkState->Opcode)));
|
|
Status = AE_SUPPORT;
|
|
goto Cleanup;
|
|
|
|
|
|
default: /* Unknown opcode */
|
|
|
|
ACPI_REPORT_ERROR (("AcpiExOpcode_1A_1T_1R: Unknown opcode %X\n",
|
|
WalkState->Opcode));
|
|
Status = AE_AML_BAD_OPCODE;
|
|
goto Cleanup;
|
|
}
|
|
|
|
/*
|
|
* Store the return value computed above into the target object
|
|
*/
|
|
Status = AcpiExStore (ReturnDesc, Operand[1], WalkState);
|
|
|
|
|
|
Cleanup:
|
|
|
|
if (!WalkState->ResultObj)
|
|
{
|
|
WalkState->ResultObj = ReturnDesc;
|
|
}
|
|
|
|
/* Delete return object on error */
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
AcpiUtRemoveReference (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;
|
|
ACPI_INTEGER Value;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE_STR ("ExOpcode_1A_0T_0R", AcpiPsGetOpcodeName (WalkState->Opcode));
|
|
|
|
|
|
/* Examine the AML opcode */
|
|
|
|
switch (WalkState->Opcode)
|
|
{
|
|
case AML_LNOT_OP: /* LNot (Operand) */
|
|
|
|
ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
|
|
if (!ReturnDesc)
|
|
{
|
|
Status = AE_NO_MEMORY;
|
|
goto Cleanup;
|
|
}
|
|
|
|
ReturnDesc->Integer.Value = !Operand[0]->Integer.Value;
|
|
break;
|
|
|
|
|
|
case AML_DECREMENT_OP: /* Decrement (Operand) */
|
|
case AML_INCREMENT_OP: /* Increment (Operand) */
|
|
|
|
/*
|
|
* Since we are expecting a Reference operand, it
|
|
* can be either a NS Node or an internal object.
|
|
*/
|
|
ReturnDesc = Operand[0];
|
|
if (ACPI_GET_DESCRIPTOR_TYPE (Operand[0]) == ACPI_DESC_TYPE_OPERAND)
|
|
{
|
|
/* Internal reference object - prevent deletion */
|
|
|
|
AcpiUtAddReference (ReturnDesc);
|
|
}
|
|
|
|
/*
|
|
* Convert the ReturnDesc Reference to a Number
|
|
* (This removes a reference on the ReturnDesc object)
|
|
*/
|
|
Status = AcpiExResolveOperands (AML_LNOT_OP, &ReturnDesc, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "%s: bad operand(s) %s\n",
|
|
AcpiPsGetOpcodeName (WalkState->Opcode), AcpiFormatException(Status)));
|
|
|
|
goto Cleanup;
|
|
}
|
|
|
|
/*
|
|
* ReturnDesc is now guaranteed to be an Integer object
|
|
* Do the actual increment or decrement
|
|
*/
|
|
if (AML_INCREMENT_OP == WalkState->Opcode)
|
|
{
|
|
ReturnDesc->Integer.Value++;
|
|
}
|
|
else
|
|
{
|
|
ReturnDesc->Integer.Value--;
|
|
}
|
|
|
|
/* Store the result back in the original descriptor */
|
|
|
|
Status = AcpiExStore (ReturnDesc, Operand[0], WalkState);
|
|
break;
|
|
|
|
|
|
case AML_TYPE_OP: /* ObjectType (SourceObject) */
|
|
|
|
/* 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 = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
|
|
if (!ReturnDesc)
|
|
{
|
|
Status = AE_NO_MEMORY;
|
|
goto Cleanup;
|
|
}
|
|
|
|
ReturnDesc->Integer.Value = Type;
|
|
break;
|
|
|
|
|
|
case AML_SIZE_OF_OP: /* SizeOf (SourceObject) */
|
|
|
|
/* Get the base object */
|
|
|
|
Status = AcpiExResolveMultiple (WalkState, Operand[0], &Type, &TempDesc);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
goto Cleanup;
|
|
}
|
|
|
|
/*
|
|
* Type is guaranteed to be a buffer, string, or package at this
|
|
* point (even if the original operand was an object reference, it
|
|
* will be resolved and typechecked during operand resolution.)
|
|
*/
|
|
switch (Type)
|
|
{
|
|
case ACPI_TYPE_BUFFER:
|
|
Value = TempDesc->Buffer.Length;
|
|
break;
|
|
|
|
case ACPI_TYPE_STRING:
|
|
Value = TempDesc->String.Length;
|
|
break;
|
|
|
|
case ACPI_TYPE_PACKAGE:
|
|
Value = TempDesc->Package.Count;
|
|
break;
|
|
|
|
default:
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "SizeOf, Not Buf/Str/Pkg - found type %s\n",
|
|
AcpiUtGetTypeName (Type)));
|
|
Status = AE_AML_OPERAND_TYPE;
|
|
goto Cleanup;
|
|
}
|
|
|
|
/*
|
|
* Now that we have the size of the object, create a result
|
|
* object to hold the value
|
|
*/
|
|
ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
|
|
if (!ReturnDesc)
|
|
{
|
|
Status = AE_NO_MEMORY;
|
|
goto Cleanup;
|
|
}
|
|
|
|
ReturnDesc->Integer.Value = Value;
|
|
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)
|
|
{
|
|
switch (ACPI_GET_OBJECT_TYPE (Operand[0]))
|
|
{
|
|
case ACPI_TYPE_LOCAL_REFERENCE:
|
|
/*
|
|
* This is a DerefOf (LocalX | ArgX)
|
|
*
|
|
* Must resolve/dereference the local/arg reference first
|
|
*/
|
|
switch (Operand[0]->Reference.Opcode)
|
|
{
|
|
case AML_LOCAL_OP:
|
|
case AML_ARG_OP:
|
|
|
|
/* Set Operand[0] to the value of the local/arg */
|
|
|
|
Status = AcpiDsMethodDataGetValue (Operand[0]->Reference.Opcode,
|
|
Operand[0]->Reference.Offset, 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 AML_REF_OF_OP:
|
|
|
|
/* 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:
|
|
|
|
/*
|
|
* 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 nee
|
|
* to resolve the node to a value.
|
|
*/
|
|
Status = AcpiNsGetNodeByPath (Operand[0]->String.Pointer,
|
|
WalkState->ScopeInfo->Scope.Node, 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;
|
|
|
|
|
|
default:
|
|
|
|
Status = AE_AML_OPERAND_TYPE;
|
|
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]);
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* This must be a reference object produced by either the Index() or
|
|
* RefOf() operator
|
|
*/
|
|
switch (Operand[0]->Reference.Opcode)
|
|
{
|
|
case AML_INDEX_OP:
|
|
|
|
/*
|
|
* 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!
|
|
*/
|
|
ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
|
|
if (!ReturnDesc)
|
|
{
|
|
Status = AE_NO_MEMORY;
|
|
goto Cleanup;
|
|
}
|
|
|
|
/*
|
|
* 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->Integer.Value =
|
|
TempDesc->Buffer.Pointer[Operand[0]->Reference.Offset];
|
|
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)
|
|
{
|
|
/*
|
|
* We can't return a NULL dereferenced value. This is
|
|
* an uninitialized package element and is thus a
|
|
* severe error.
|
|
*/
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "NULL package element obj %p\n",
|
|
Operand[0]));
|
|
Status = AE_AML_UNINITIALIZED_ELEMENT;
|
|
goto Cleanup;
|
|
}
|
|
|
|
AcpiUtAddReference (ReturnDesc);
|
|
break;
|
|
|
|
|
|
default:
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown Index TargetType %X in obj %p\n",
|
|
Operand[0]->Reference.TargetType, Operand[0]));
|
|
Status = AE_AML_OPERAND_TYPE;
|
|
goto Cleanup;
|
|
}
|
|
break;
|
|
|
|
|
|
case AML_REF_OF_OP:
|
|
|
|
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_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown opcode in ref(%p) - %X\n",
|
|
Operand[0], Operand[0]->Reference.Opcode));
|
|
|
|
Status = AE_TYPE;
|
|
goto Cleanup;
|
|
}
|
|
}
|
|
break;
|
|
|
|
|
|
default:
|
|
|
|
ACPI_REPORT_ERROR (("AcpiExOpcode_1A_0T_1R: Unknown opcode %X\n",
|
|
WalkState->Opcode));
|
|
Status = AE_AML_BAD_OPCODE;
|
|
goto Cleanup;
|
|
}
|
|
|
|
|
|
Cleanup:
|
|
|
|
/* Delete return object on error */
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
AcpiUtRemoveReference (ReturnDesc);
|
|
}
|
|
|
|
WalkState->ResultObj = ReturnDesc;
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|