9560b6dea8
- 99% of the code is Intel's ACPICA. The license is compliant with BSD and GNU and virtually all systems that use ACPI use this code, For instance it is part of the Linux kernel. - The only minix specific files are acpi.c osminixxf.c platform/acminix.h and include/minix/acpi.h - At the moment the driver does not register interrupt hooks which I believe is mainly for handling PnP, events like "battery level is low" and power management. Should not be difficult to add it if need be. - The interface to the outside world is virtually non-existent except a trivial message based service for PCI driver to query which device is connected to what IRQ line. This will evolve as more components start using this driver. VM, Scheduler and IOMMU are the possible users right now. - because of dependency on a native 64bit (long long, part of c99) it is compiled only with a gnu-like compilers which in case of Minix includes gcc llvm-gcc and clang
1317 lines
40 KiB
C
1317 lines
40 KiB
C
/******************************************************************************
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*
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* Module Name: dswload - Dispatcher namespace load callbacks
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*
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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.
|
|
* 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,
|
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* 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.
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|
*
|
|
* 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
|
|
* documentation and/or other materials provided with distribution. In
|
|
* 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
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* make.
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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
|
|
* above Copyright Notice, and the following Disclaimer and Export Compliance
|
|
* 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
|
|
* 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
|
|
* 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
|
|
* ensure that the distribution and export/re-export of the software is in
|
|
* compliance with all laws, regulations, orders, or other restrictions of the
|
|
* 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,
|
|
* 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,
|
|
* 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 __DSWLOAD_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 "amlcode.h"
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#include "acdispat.h"
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#include "acinterp.h"
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#include "acnamesp.h"
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#include "acevents.h"
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#ifdef ACPI_ASL_COMPILER
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#include "acdisasm.h"
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#endif
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#define _COMPONENT ACPI_DISPATCHER
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ACPI_MODULE_NAME ("dswload")
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|
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/*******************************************************************************
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*
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* FUNCTION: AcpiDsInitCallbacks
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*
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* PARAMETERS: WalkState - Current state of the parse tree walk
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* PassNumber - 1, 2, or 3
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*
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* RETURN: Status
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*
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* DESCRIPTION: Init walk state callbacks
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiDsInitCallbacks (
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ACPI_WALK_STATE *WalkState,
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UINT32 PassNumber)
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{
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switch (PassNumber)
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{
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case 1:
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WalkState->ParseFlags = ACPI_PARSE_LOAD_PASS1 |
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ACPI_PARSE_DELETE_TREE;
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WalkState->DescendingCallback = AcpiDsLoad1BeginOp;
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WalkState->AscendingCallback = AcpiDsLoad1EndOp;
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break;
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case 2:
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WalkState->ParseFlags = ACPI_PARSE_LOAD_PASS1 |
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ACPI_PARSE_DELETE_TREE;
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WalkState->DescendingCallback = AcpiDsLoad2BeginOp;
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WalkState->AscendingCallback = AcpiDsLoad2EndOp;
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break;
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case 3:
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#ifndef ACPI_NO_METHOD_EXECUTION
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WalkState->ParseFlags |= ACPI_PARSE_EXECUTE |
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ACPI_PARSE_DELETE_TREE;
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WalkState->DescendingCallback = AcpiDsExecBeginOp;
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WalkState->AscendingCallback = AcpiDsExecEndOp;
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#endif
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break;
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|
default:
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return (AE_BAD_PARAMETER);
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}
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return (AE_OK);
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}
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|
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/*******************************************************************************
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*
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* FUNCTION: AcpiDsLoad1BeginOp
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*
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* PARAMETERS: WalkState - Current state of the parse tree walk
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* OutOp - Where to return op if a new one is created
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*
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* RETURN: Status
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*
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* DESCRIPTION: Descending callback used during the loading of ACPI tables.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiDsLoad1BeginOp (
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ACPI_WALK_STATE *WalkState,
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ACPI_PARSE_OBJECT **OutOp)
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{
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ACPI_PARSE_OBJECT *Op;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_STATUS Status;
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ACPI_OBJECT_TYPE ObjectType;
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char *Path;
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UINT32 Flags;
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ACPI_FUNCTION_TRACE (DsLoad1BeginOp);
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Op = WalkState->Op;
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ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState));
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/* We are only interested in opcodes that have an associated name */
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if (Op)
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{
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if (!(WalkState->OpInfo->Flags & AML_NAMED))
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{
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*OutOp = Op;
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return_ACPI_STATUS (AE_OK);
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}
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/* Check if this object has already been installed in the namespace */
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|
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if (Op->Common.Node)
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{
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*OutOp = Op;
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return_ACPI_STATUS (AE_OK);
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}
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}
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Path = AcpiPsGetNextNamestring (&WalkState->ParserState);
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/* Map the raw opcode into an internal object type */
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ObjectType = WalkState->OpInfo->ObjectType;
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ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
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"State=%p Op=%p [%s]\n", WalkState, Op, AcpiUtGetTypeName (ObjectType)));
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|
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switch (WalkState->Opcode)
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{
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case AML_SCOPE_OP:
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/*
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* The target name of the Scope() operator must exist at this point so
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* that we can actually open the scope to enter new names underneath it.
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* Allow search-to-root for single namesegs.
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*/
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Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType,
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ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, WalkState, &(Node));
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#ifdef ACPI_ASL_COMPILER
|
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if (Status == AE_NOT_FOUND)
|
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{
|
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/*
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* Table disassembly:
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* Target of Scope() not found. Generate an External for it, and
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* insert the name into the namespace.
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*/
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AcpiDmAddToExternalList (Op, Path, ACPI_TYPE_DEVICE, 0);
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Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType,
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ACPI_IMODE_LOAD_PASS1, ACPI_NS_SEARCH_PARENT,
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WalkState, &Node);
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}
|
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#endif
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if (ACPI_FAILURE (Status))
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{
|
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ACPI_ERROR_NAMESPACE (Path, Status);
|
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return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/*
|
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* Check to make sure that the target is
|
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* one of the opcodes that actually opens a scope
|
|
*/
|
|
switch (Node->Type)
|
|
{
|
|
case ACPI_TYPE_ANY:
|
|
case ACPI_TYPE_LOCAL_SCOPE: /* Scope */
|
|
case ACPI_TYPE_DEVICE:
|
|
case ACPI_TYPE_POWER:
|
|
case ACPI_TYPE_PROCESSOR:
|
|
case ACPI_TYPE_THERMAL:
|
|
|
|
/* These are acceptable types */
|
|
break;
|
|
|
|
case ACPI_TYPE_INTEGER:
|
|
case ACPI_TYPE_STRING:
|
|
case ACPI_TYPE_BUFFER:
|
|
|
|
/*
|
|
* These types we will allow, but we will change the type.
|
|
* This enables some existing code of the form:
|
|
*
|
|
* Name (DEB, 0)
|
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* Scope (DEB) { ... }
|
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*
|
|
* Note: silently change the type here. On the second pass,
|
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* we will report a warning
|
|
*/
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
|
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"Type override - [%4.4s] had invalid type (%s) "
|
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"for Scope operator, changed to type ANY\n",
|
|
AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Node->Type)));
|
|
|
|
Node->Type = ACPI_TYPE_ANY;
|
|
WalkState->ScopeInfo->Common.Value = ACPI_TYPE_ANY;
|
|
break;
|
|
|
|
default:
|
|
|
|
/* All other types are an error */
|
|
|
|
ACPI_ERROR ((AE_INFO,
|
|
"Invalid type (%s) for target of "
|
|
"Scope operator [%4.4s] (Cannot override)",
|
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AcpiUtGetTypeName (Node->Type), AcpiUtGetNodeName (Node)));
|
|
|
|
return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
|
|
}
|
|
break;
|
|
|
|
|
|
default:
|
|
/*
|
|
* For all other named opcodes, we will enter the name into
|
|
* the namespace.
|
|
*
|
|
* Setup the search flags.
|
|
* Since we are entering a name into the namespace, we do not want to
|
|
* enable the search-to-root upsearch.
|
|
*
|
|
* There are only two conditions where it is acceptable that the name
|
|
* already exists:
|
|
* 1) the Scope() operator can reopen a scoping object that was
|
|
* previously defined (Scope, Method, Device, etc.)
|
|
* 2) Whenever we are parsing a deferred opcode (OpRegion, Buffer,
|
|
* BufferField, or Package), the name of the object is already
|
|
* in the namespace.
|
|
*/
|
|
if (WalkState->DeferredNode)
|
|
{
|
|
/* This name is already in the namespace, get the node */
|
|
|
|
Node = WalkState->DeferredNode;
|
|
Status = AE_OK;
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* If we are executing a method, do not create any namespace objects
|
|
* during the load phase, only during execution.
|
|
*/
|
|
if (WalkState->MethodNode)
|
|
{
|
|
Node = NULL;
|
|
Status = AE_OK;
|
|
break;
|
|
}
|
|
|
|
Flags = ACPI_NS_NO_UPSEARCH;
|
|
if ((WalkState->Opcode != AML_SCOPE_OP) &&
|
|
(!(WalkState->ParseFlags & ACPI_PARSE_DEFERRED_OP)))
|
|
{
|
|
Flags |= ACPI_NS_ERROR_IF_FOUND;
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[%s] Cannot already exist\n",
|
|
AcpiUtGetTypeName (ObjectType)));
|
|
}
|
|
else
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
|
|
"[%s] Both Find or Create allowed\n",
|
|
AcpiUtGetTypeName (ObjectType)));
|
|
}
|
|
|
|
/*
|
|
* Enter the named type into the internal namespace. We enter the name
|
|
* as we go downward in the parse tree. Any necessary subobjects that
|
|
* involve arguments to the opcode must be created as we go back up the
|
|
* parse tree later.
|
|
*/
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType,
|
|
ACPI_IMODE_LOAD_PASS1, Flags, WalkState, &Node);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
if (Status == AE_ALREADY_EXISTS)
|
|
{
|
|
/* The name already exists in this scope */
|
|
|
|
if (Node->Flags & ANOBJ_IS_EXTERNAL)
|
|
{
|
|
/*
|
|
* Allow one create on an object or segment that was
|
|
* previously declared External
|
|
*/
|
|
Node->Flags &= ~ANOBJ_IS_EXTERNAL;
|
|
Node->Type = (UINT8) ObjectType;
|
|
|
|
/* Just retyped a node, probably will need to open a scope */
|
|
|
|
if (AcpiNsOpensScope (ObjectType))
|
|
{
|
|
Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
|
|
Status = AE_OK;
|
|
}
|
|
}
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
ACPI_ERROR_NAMESPACE (Path, Status);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* Common exit */
|
|
|
|
if (!Op)
|
|
{
|
|
/* Create a new op */
|
|
|
|
Op = AcpiPsAllocOp (WalkState->Opcode);
|
|
if (!Op)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
}
|
|
|
|
/* Initialize the op */
|
|
|
|
#if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY))
|
|
Op->Named.Path = ACPI_CAST_PTR (UINT8, Path);
|
|
#endif
|
|
|
|
if (Node)
|
|
{
|
|
/*
|
|
* Put the Node in the "op" object that the parser uses, so we
|
|
* can get it again quickly when this scope is closed
|
|
*/
|
|
Op->Common.Node = Node;
|
|
Op->Named.Name = Node->Name.Integer;
|
|
}
|
|
|
|
AcpiPsAppendArg (AcpiPsGetParentScope (&WalkState->ParserState), Op);
|
|
*OutOp = Op;
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDsLoad1EndOp
|
|
*
|
|
* PARAMETERS: WalkState - Current state of the parse tree walk
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Ascending callback used during the loading of the namespace,
|
|
* both control methods and everything else.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiDsLoad1EndOp (
|
|
ACPI_WALK_STATE *WalkState)
|
|
{
|
|
ACPI_PARSE_OBJECT *Op;
|
|
ACPI_OBJECT_TYPE ObjectType;
|
|
ACPI_STATUS Status = AE_OK;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (DsLoad1EndOp);
|
|
|
|
|
|
Op = WalkState->Op;
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState));
|
|
|
|
/* We are only interested in opcodes that have an associated name */
|
|
|
|
if (!(WalkState->OpInfo->Flags & (AML_NAMED | AML_FIELD)))
|
|
{
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
/* Get the object type to determine if we should pop the scope */
|
|
|
|
ObjectType = WalkState->OpInfo->ObjectType;
|
|
|
|
#ifndef ACPI_NO_METHOD_EXECUTION
|
|
if (WalkState->OpInfo->Flags & AML_FIELD)
|
|
{
|
|
/*
|
|
* If we are executing a method, do not create any namespace objects
|
|
* during the load phase, only during execution.
|
|
*/
|
|
if (!WalkState->MethodNode)
|
|
{
|
|
if (WalkState->Opcode == AML_FIELD_OP ||
|
|
WalkState->Opcode == AML_BANK_FIELD_OP ||
|
|
WalkState->Opcode == AML_INDEX_FIELD_OP)
|
|
{
|
|
Status = AcpiDsInitFieldObjects (Op, WalkState);
|
|
}
|
|
}
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/*
|
|
* If we are executing a method, do not create any namespace objects
|
|
* during the load phase, only during execution.
|
|
*/
|
|
if (!WalkState->MethodNode)
|
|
{
|
|
if (Op->Common.AmlOpcode == AML_REGION_OP)
|
|
{
|
|
Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length,
|
|
(ACPI_ADR_SPACE_TYPE) ((Op->Common.Value.Arg)->Common.Value.Integer),
|
|
WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
else if (Op->Common.AmlOpcode == AML_DATA_REGION_OP)
|
|
{
|
|
Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length,
|
|
REGION_DATA_TABLE, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (Op->Common.AmlOpcode == AML_NAME_OP)
|
|
{
|
|
/* For Name opcode, get the object type from the argument */
|
|
|
|
if (Op->Common.Value.Arg)
|
|
{
|
|
ObjectType = (AcpiPsGetOpcodeInfo (
|
|
(Op->Common.Value.Arg)->Common.AmlOpcode))->ObjectType;
|
|
|
|
/* Set node type if we have a namespace node */
|
|
|
|
if (Op->Common.Node)
|
|
{
|
|
Op->Common.Node->Type = (UINT8) ObjectType;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If we are executing a method, do not create any namespace objects
|
|
* during the load phase, only during execution.
|
|
*/
|
|
if (!WalkState->MethodNode)
|
|
{
|
|
if (Op->Common.AmlOpcode == AML_METHOD_OP)
|
|
{
|
|
/*
|
|
* MethodOp PkgLength NameString MethodFlags TermList
|
|
*
|
|
* Note: We must create the method node/object pair as soon as we
|
|
* see the method declaration. This allows later pass1 parsing
|
|
* of invocations of the method (need to know the number of
|
|
* arguments.)
|
|
*/
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
|
|
"LOADING-Method: State=%p Op=%p NamedObj=%p\n",
|
|
WalkState, Op, Op->Named.Node));
|
|
|
|
if (!AcpiNsGetAttachedObject (Op->Named.Node))
|
|
{
|
|
WalkState->Operands[0] = ACPI_CAST_PTR (void, Op->Named.Node);
|
|
WalkState->NumOperands = 1;
|
|
|
|
Status = AcpiDsCreateOperands (WalkState, Op->Common.Value.Arg);
|
|
if (ACPI_SUCCESS (Status))
|
|
{
|
|
Status = AcpiExCreateMethod (Op->Named.Data,
|
|
Op->Named.Length, WalkState);
|
|
}
|
|
|
|
WalkState->Operands[0] = NULL;
|
|
WalkState->NumOperands = 0;
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Pop the scope stack (only if loading a table) */
|
|
|
|
if (!WalkState->MethodNode &&
|
|
AcpiNsOpensScope (ObjectType))
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s): Popping scope for Op %p\n",
|
|
AcpiUtGetTypeName (ObjectType), Op));
|
|
|
|
Status = AcpiDsScopeStackPop (WalkState);
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDsLoad2BeginOp
|
|
*
|
|
* PARAMETERS: WalkState - Current state of the parse tree walk
|
|
* OutOp - Wher to return op if a new one is created
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Descending callback used during the loading of ACPI tables.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiDsLoad2BeginOp (
|
|
ACPI_WALK_STATE *WalkState,
|
|
ACPI_PARSE_OBJECT **OutOp)
|
|
{
|
|
ACPI_PARSE_OBJECT *Op;
|
|
ACPI_NAMESPACE_NODE *Node;
|
|
ACPI_STATUS Status;
|
|
ACPI_OBJECT_TYPE ObjectType;
|
|
char *BufferPtr;
|
|
UINT32 Flags;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (DsLoad2BeginOp);
|
|
|
|
|
|
Op = WalkState->Op;
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState));
|
|
|
|
if (Op)
|
|
{
|
|
if ((WalkState->ControlState) &&
|
|
(WalkState->ControlState->Common.State ==
|
|
ACPI_CONTROL_CONDITIONAL_EXECUTING))
|
|
{
|
|
/* We are executing a while loop outside of a method */
|
|
|
|
Status = AcpiDsExecBeginOp (WalkState, OutOp);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* We only care about Namespace opcodes here */
|
|
|
|
if ((!(WalkState->OpInfo->Flags & AML_NSOPCODE) &&
|
|
(WalkState->Opcode != AML_INT_NAMEPATH_OP)) ||
|
|
(!(WalkState->OpInfo->Flags & AML_NAMED)))
|
|
{
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
/* Get the name we are going to enter or lookup in the namespace */
|
|
|
|
if (WalkState->Opcode == AML_INT_NAMEPATH_OP)
|
|
{
|
|
/* For Namepath op, get the path string */
|
|
|
|
BufferPtr = Op->Common.Value.String;
|
|
if (!BufferPtr)
|
|
{
|
|
/* No name, just exit */
|
|
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Get name from the op */
|
|
|
|
BufferPtr = ACPI_CAST_PTR (char, &Op->Named.Name);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Get the namestring from the raw AML */
|
|
|
|
BufferPtr = AcpiPsGetNextNamestring (&WalkState->ParserState);
|
|
}
|
|
|
|
/* Map the opcode into an internal object type */
|
|
|
|
ObjectType = WalkState->OpInfo->ObjectType;
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
|
|
"State=%p Op=%p Type=%X\n", WalkState, Op, ObjectType));
|
|
|
|
switch (WalkState->Opcode)
|
|
{
|
|
case AML_FIELD_OP:
|
|
case AML_BANK_FIELD_OP:
|
|
case AML_INDEX_FIELD_OP:
|
|
|
|
Node = NULL;
|
|
Status = AE_OK;
|
|
break;
|
|
|
|
case AML_INT_NAMEPATH_OP:
|
|
/*
|
|
* The NamePath is an object reference to an existing object.
|
|
* Don't enter the name into the namespace, but look it up
|
|
* for use later.
|
|
*/
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType,
|
|
ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
|
|
WalkState, &(Node));
|
|
break;
|
|
|
|
case AML_SCOPE_OP:
|
|
|
|
/* Special case for Scope(\) -> refers to the Root node */
|
|
|
|
if (Op && (Op->Named.Node == AcpiGbl_RootNode))
|
|
{
|
|
Node = Op->Named.Node;
|
|
|
|
Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* The Path is an object reference to an existing object.
|
|
* Don't enter the name into the namespace, but look it up
|
|
* for use later.
|
|
*/
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType,
|
|
ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
|
|
WalkState, &(Node));
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
#ifdef ACPI_ASL_COMPILER
|
|
if (Status == AE_NOT_FOUND)
|
|
{
|
|
Status = AE_OK;
|
|
}
|
|
else
|
|
{
|
|
ACPI_ERROR_NAMESPACE (BufferPtr, Status);
|
|
}
|
|
#else
|
|
ACPI_ERROR_NAMESPACE (BufferPtr, Status);
|
|
#endif
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* We must check to make sure that the target is
|
|
* one of the opcodes that actually opens a scope
|
|
*/
|
|
switch (Node->Type)
|
|
{
|
|
case ACPI_TYPE_ANY:
|
|
case ACPI_TYPE_LOCAL_SCOPE: /* Scope */
|
|
case ACPI_TYPE_DEVICE:
|
|
case ACPI_TYPE_POWER:
|
|
case ACPI_TYPE_PROCESSOR:
|
|
case ACPI_TYPE_THERMAL:
|
|
|
|
/* These are acceptable types */
|
|
break;
|
|
|
|
case ACPI_TYPE_INTEGER:
|
|
case ACPI_TYPE_STRING:
|
|
case ACPI_TYPE_BUFFER:
|
|
|
|
/*
|
|
* These types we will allow, but we will change the type.
|
|
* This enables some existing code of the form:
|
|
*
|
|
* Name (DEB, 0)
|
|
* Scope (DEB) { ... }
|
|
*/
|
|
ACPI_WARNING ((AE_INFO,
|
|
"Type override - [%4.4s] had invalid type (%s) "
|
|
"for Scope operator, changed to type ANY\n",
|
|
AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Node->Type)));
|
|
|
|
Node->Type = ACPI_TYPE_ANY;
|
|
WalkState->ScopeInfo->Common.Value = ACPI_TYPE_ANY;
|
|
break;
|
|
|
|
default:
|
|
|
|
/* All other types are an error */
|
|
|
|
ACPI_ERROR ((AE_INFO,
|
|
"Invalid type (%s) for target of "
|
|
"Scope operator [%4.4s] (Cannot override)",
|
|
AcpiUtGetTypeName (Node->Type), AcpiUtGetNodeName (Node)));
|
|
|
|
return (AE_AML_OPERAND_TYPE);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
|
|
/* All other opcodes */
|
|
|
|
if (Op && Op->Common.Node)
|
|
{
|
|
/* This op/node was previously entered into the namespace */
|
|
|
|
Node = Op->Common.Node;
|
|
|
|
if (AcpiNsOpensScope (ObjectType))
|
|
{
|
|
Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
/*
|
|
* Enter the named type into the internal namespace. We enter the name
|
|
* as we go downward in the parse tree. Any necessary subobjects that
|
|
* involve arguments to the opcode must be created as we go back up the
|
|
* parse tree later.
|
|
*
|
|
* Note: Name may already exist if we are executing a deferred opcode.
|
|
*/
|
|
if (WalkState->DeferredNode)
|
|
{
|
|
/* This name is already in the namespace, get the node */
|
|
|
|
Node = WalkState->DeferredNode;
|
|
Status = AE_OK;
|
|
break;
|
|
}
|
|
|
|
Flags = ACPI_NS_NO_UPSEARCH;
|
|
if (WalkState->PassNumber == ACPI_IMODE_EXECUTE)
|
|
{
|
|
/* Execution mode, node cannot already exist, node is temporary */
|
|
|
|
Flags |= ACPI_NS_ERROR_IF_FOUND;
|
|
|
|
if (!(WalkState->ParseFlags & ACPI_PARSE_MODULE_LEVEL))
|
|
{
|
|
Flags |= ACPI_NS_TEMPORARY;
|
|
}
|
|
}
|
|
|
|
/* Add new entry or lookup existing entry */
|
|
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType,
|
|
ACPI_IMODE_LOAD_PASS2, Flags, WalkState, &Node);
|
|
|
|
if (ACPI_SUCCESS (Status) && (Flags & ACPI_NS_TEMPORARY))
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
|
|
"***New Node [%4.4s] %p is temporary\n",
|
|
AcpiUtGetNodeName (Node), Node));
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
ACPI_ERROR_NAMESPACE (BufferPtr, Status);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
if (!Op)
|
|
{
|
|
/* Create a new op */
|
|
|
|
Op = AcpiPsAllocOp (WalkState->Opcode);
|
|
if (!Op)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
/* Initialize the new op */
|
|
|
|
if (Node)
|
|
{
|
|
Op->Named.Name = Node->Name.Integer;
|
|
}
|
|
*OutOp = Op;
|
|
}
|
|
|
|
/*
|
|
* Put the Node in the "op" object that the parser uses, so we
|
|
* can get it again quickly when this scope is closed
|
|
*/
|
|
Op->Common.Node = Node;
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDsLoad2EndOp
|
|
*
|
|
* PARAMETERS: WalkState - Current state of the parse tree walk
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Ascending callback used during the loading of the namespace,
|
|
* both control methods and everything else.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiDsLoad2EndOp (
|
|
ACPI_WALK_STATE *WalkState)
|
|
{
|
|
ACPI_PARSE_OBJECT *Op;
|
|
ACPI_STATUS Status = AE_OK;
|
|
ACPI_OBJECT_TYPE ObjectType;
|
|
ACPI_NAMESPACE_NODE *Node;
|
|
ACPI_PARSE_OBJECT *Arg;
|
|
ACPI_NAMESPACE_NODE *NewNode;
|
|
#ifndef ACPI_NO_METHOD_EXECUTION
|
|
UINT32 i;
|
|
UINT8 RegionSpace;
|
|
#endif
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (DsLoad2EndOp);
|
|
|
|
Op = WalkState->Op;
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n",
|
|
WalkState->OpInfo->Name, Op, WalkState));
|
|
|
|
/* Check if opcode had an associated namespace object */
|
|
|
|
if (!(WalkState->OpInfo->Flags & AML_NSOBJECT))
|
|
{
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
if (Op->Common.AmlOpcode == AML_SCOPE_OP)
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
|
|
"Ending scope Op=%p State=%p\n", Op, WalkState));
|
|
}
|
|
|
|
ObjectType = WalkState->OpInfo->ObjectType;
|
|
|
|
/*
|
|
* Get the Node/name from the earlier lookup
|
|
* (It was saved in the *op structure)
|
|
*/
|
|
Node = Op->Common.Node;
|
|
|
|
/*
|
|
* Put the Node on the object stack (Contains the ACPI Name of
|
|
* this object)
|
|
*/
|
|
WalkState->Operands[0] = (void *) Node;
|
|
WalkState->NumOperands = 1;
|
|
|
|
/* Pop the scope stack */
|
|
|
|
if (AcpiNsOpensScope (ObjectType) &&
|
|
(Op->Common.AmlOpcode != AML_INT_METHODCALL_OP))
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s) Popping scope for Op %p\n",
|
|
AcpiUtGetTypeName (ObjectType), Op));
|
|
|
|
Status = AcpiDsScopeStackPop (WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
goto Cleanup;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Named operations are as follows:
|
|
*
|
|
* AML_ALIAS
|
|
* AML_BANKFIELD
|
|
* AML_CREATEBITFIELD
|
|
* AML_CREATEBYTEFIELD
|
|
* AML_CREATEDWORDFIELD
|
|
* AML_CREATEFIELD
|
|
* AML_CREATEQWORDFIELD
|
|
* AML_CREATEWORDFIELD
|
|
* AML_DATA_REGION
|
|
* AML_DEVICE
|
|
* AML_EVENT
|
|
* AML_FIELD
|
|
* AML_INDEXFIELD
|
|
* AML_METHOD
|
|
* AML_METHODCALL
|
|
* AML_MUTEX
|
|
* AML_NAME
|
|
* AML_NAMEDFIELD
|
|
* AML_OPREGION
|
|
* AML_POWERRES
|
|
* AML_PROCESSOR
|
|
* AML_SCOPE
|
|
* AML_THERMALZONE
|
|
*/
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
|
|
"Create-Load [%s] State=%p Op=%p NamedObj=%p\n",
|
|
AcpiPsGetOpcodeName (Op->Common.AmlOpcode), WalkState, Op, Node));
|
|
|
|
/* Decode the opcode */
|
|
|
|
Arg = Op->Common.Value.Arg;
|
|
|
|
switch (WalkState->OpInfo->Type)
|
|
{
|
|
#ifndef ACPI_NO_METHOD_EXECUTION
|
|
|
|
case AML_TYPE_CREATE_FIELD:
|
|
/*
|
|
* Create the field object, but the field buffer and index must
|
|
* be evaluated later during the execution phase
|
|
*/
|
|
Status = AcpiDsCreateBufferField (Op, WalkState);
|
|
break;
|
|
|
|
|
|
case AML_TYPE_NAMED_FIELD:
|
|
/*
|
|
* If we are executing a method, initialize the field
|
|
*/
|
|
if (WalkState->MethodNode)
|
|
{
|
|
Status = AcpiDsInitFieldObjects (Op, WalkState);
|
|
}
|
|
|
|
switch (Op->Common.AmlOpcode)
|
|
{
|
|
case AML_INDEX_FIELD_OP:
|
|
|
|
Status = AcpiDsCreateIndexField (Op, (ACPI_HANDLE) Arg->Common.Node,
|
|
WalkState);
|
|
break;
|
|
|
|
case AML_BANK_FIELD_OP:
|
|
|
|
Status = AcpiDsCreateBankField (Op, Arg->Common.Node, WalkState);
|
|
break;
|
|
|
|
case AML_FIELD_OP:
|
|
|
|
Status = AcpiDsCreateField (Op, Arg->Common.Node, WalkState);
|
|
break;
|
|
|
|
default:
|
|
/* All NAMED_FIELD opcodes must be handled above */
|
|
break;
|
|
}
|
|
break;
|
|
|
|
|
|
case AML_TYPE_NAMED_SIMPLE:
|
|
|
|
Status = AcpiDsCreateOperands (WalkState, Arg);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
goto Cleanup;
|
|
}
|
|
|
|
switch (Op->Common.AmlOpcode)
|
|
{
|
|
case AML_PROCESSOR_OP:
|
|
|
|
Status = AcpiExCreateProcessor (WalkState);
|
|
break;
|
|
|
|
case AML_POWER_RES_OP:
|
|
|
|
Status = AcpiExCreatePowerResource (WalkState);
|
|
break;
|
|
|
|
case AML_MUTEX_OP:
|
|
|
|
Status = AcpiExCreateMutex (WalkState);
|
|
break;
|
|
|
|
case AML_EVENT_OP:
|
|
|
|
Status = AcpiExCreateEvent (WalkState);
|
|
break;
|
|
|
|
|
|
case AML_ALIAS_OP:
|
|
|
|
Status = AcpiExCreateAlias (WalkState);
|
|
break;
|
|
|
|
default:
|
|
/* Unknown opcode */
|
|
|
|
Status = AE_OK;
|
|
goto Cleanup;
|
|
}
|
|
|
|
/* Delete operands */
|
|
|
|
for (i = 1; i < WalkState->NumOperands; i++)
|
|
{
|
|
AcpiUtRemoveReference (WalkState->Operands[i]);
|
|
WalkState->Operands[i] = NULL;
|
|
}
|
|
|
|
break;
|
|
#endif /* ACPI_NO_METHOD_EXECUTION */
|
|
|
|
case AML_TYPE_NAMED_COMPLEX:
|
|
|
|
switch (Op->Common.AmlOpcode)
|
|
{
|
|
#ifndef ACPI_NO_METHOD_EXECUTION
|
|
case AML_REGION_OP:
|
|
case AML_DATA_REGION_OP:
|
|
|
|
if (Op->Common.AmlOpcode == AML_REGION_OP)
|
|
{
|
|
RegionSpace = (ACPI_ADR_SPACE_TYPE)
|
|
((Op->Common.Value.Arg)->Common.Value.Integer);
|
|
}
|
|
else
|
|
{
|
|
RegionSpace = REGION_DATA_TABLE;
|
|
}
|
|
|
|
/*
|
|
* The OpRegion is not fully parsed at this time. The only valid
|
|
* argument is the SpaceId. (We must save the address of the
|
|
* AML of the address and length operands)
|
|
*
|
|
* If we have a valid region, initialize it. The namespace is
|
|
* unlocked at this point.
|
|
*
|
|
* Need to unlock interpreter if it is locked (if we are running
|
|
* a control method), in order to allow _REG methods to be run
|
|
* during AcpiEvInitializeRegion.
|
|
*/
|
|
if (WalkState->MethodNode)
|
|
{
|
|
/*
|
|
* Executing a method: initialize the region and unlock
|
|
* the interpreter
|
|
*/
|
|
Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length,
|
|
RegionSpace, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return (Status);
|
|
}
|
|
|
|
AcpiExExitInterpreter ();
|
|
}
|
|
|
|
Status = AcpiEvInitializeRegion (AcpiNsGetAttachedObject (Node),
|
|
FALSE);
|
|
if (WalkState->MethodNode)
|
|
{
|
|
AcpiExEnterInterpreter ();
|
|
}
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
/*
|
|
* If AE_NOT_EXIST is returned, it is not fatal
|
|
* because many regions get created before a handler
|
|
* is installed for said region.
|
|
*/
|
|
if (AE_NOT_EXIST == Status)
|
|
{
|
|
Status = AE_OK;
|
|
}
|
|
}
|
|
break;
|
|
|
|
|
|
case AML_NAME_OP:
|
|
|
|
Status = AcpiDsCreateNode (WalkState, Node, Op);
|
|
break;
|
|
|
|
|
|
case AML_METHOD_OP:
|
|
/*
|
|
* MethodOp PkgLength NameString MethodFlags TermList
|
|
*
|
|
* Note: We must create the method node/object pair as soon as we
|
|
* see the method declaration. This allows later pass1 parsing
|
|
* of invocations of the method (need to know the number of
|
|
* arguments.)
|
|
*/
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
|
|
"LOADING-Method: State=%p Op=%p NamedObj=%p\n",
|
|
WalkState, Op, Op->Named.Node));
|
|
|
|
if (!AcpiNsGetAttachedObject (Op->Named.Node))
|
|
{
|
|
WalkState->Operands[0] = ACPI_CAST_PTR (void, Op->Named.Node);
|
|
WalkState->NumOperands = 1;
|
|
|
|
Status = AcpiDsCreateOperands (WalkState, Op->Common.Value.Arg);
|
|
if (ACPI_SUCCESS (Status))
|
|
{
|
|
Status = AcpiExCreateMethod (Op->Named.Data,
|
|
Op->Named.Length, WalkState);
|
|
}
|
|
WalkState->Operands[0] = NULL;
|
|
WalkState->NumOperands = 0;
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
break;
|
|
|
|
#endif /* ACPI_NO_METHOD_EXECUTION */
|
|
|
|
default:
|
|
/* All NAMED_COMPLEX opcodes must be handled above */
|
|
break;
|
|
}
|
|
break;
|
|
|
|
|
|
case AML_CLASS_INTERNAL:
|
|
|
|
/* case AML_INT_NAMEPATH_OP: */
|
|
break;
|
|
|
|
|
|
case AML_CLASS_METHOD_CALL:
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
|
|
"RESOLVING-MethodCall: State=%p Op=%p NamedObj=%p\n",
|
|
WalkState, Op, Node));
|
|
|
|
/*
|
|
* Lookup the method name and save the Node
|
|
*/
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Common.Value.String,
|
|
ACPI_TYPE_ANY, ACPI_IMODE_LOAD_PASS2,
|
|
ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE,
|
|
WalkState, &(NewNode));
|
|
if (ACPI_SUCCESS (Status))
|
|
{
|
|
/*
|
|
* Make sure that what we found is indeed a method
|
|
* We didn't search for a method on purpose, to see if the name
|
|
* would resolve
|
|
*/
|
|
if (NewNode->Type != ACPI_TYPE_METHOD)
|
|
{
|
|
Status = AE_AML_OPERAND_TYPE;
|
|
}
|
|
|
|
/* We could put the returned object (Node) on the object stack for
|
|
* later, but for now, we will put it in the "op" object that the
|
|
* parser uses, so we can get it again at the end of this scope
|
|
*/
|
|
Op->Common.Node = NewNode;
|
|
}
|
|
else
|
|
{
|
|
ACPI_ERROR_NAMESPACE (Arg->Common.Value.String, Status);
|
|
}
|
|
break;
|
|
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
Cleanup:
|
|
|
|
/* Remove the Node pushed at the very beginning */
|
|
|
|
WalkState->Operands[0] = NULL;
|
|
WalkState->NumOperands = 0;
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|