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Diffstat (limited to 'sys/contrib/dev/acpica/exconfig.c')
| -rw-r--r-- | sys/contrib/dev/acpica/exconfig.c | 523 |
1 files changed, 523 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/exconfig.c b/sys/contrib/dev/acpica/exconfig.c new file mode 100644 index 0000000..60d8b36 --- /dev/null +++ b/sys/contrib/dev/acpica/exconfig.c @@ -0,0 +1,523 @@ +/****************************************************************************** + * + * Module Name: exconfig - Namespace reconfiguration (Load/Unload opcodes) + * $Revision: 1.103 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999 - 2007, Intel Corp. + * All rights reserved. + * + * 2. License + * + * 2.1. This is your license from Intel Corp. under its intellectual property + * rights. You may have additional license terms from the party that provided + * you this software, covering your right to use that party's intellectual + * property rights. + * + * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a + * copy of the source code appearing in this file ("Covered Code") an + * irrevocable, perpetual, worldwide license under Intel's copyrights in the + * base code distributed originally by Intel ("Original Intel Code") to copy, + * make derivatives, distribute, use and display any portion of the Covered + * Code in any form, with the right to sublicense such rights; and + * + * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent + * license (with the right to sublicense), under only those claims of Intel + * patents that are infringed by the Original Intel Code, to make, use, sell, + * offer to sell, and import the Covered Code and derivative works thereof + * solely to the minimum extent necessary to exercise the above copyright + * license, and in no event shall the patent license extend to any additions + * to or modifications of the Original Intel Code. No other license or right + * is granted directly or by implication, estoppel or otherwise; + * + * The above copyright and patent license is granted only if the following + * conditions are met: + * + * 3. Conditions + * + * 3.1. Redistribution of Source with Rights to Further Distribute Source. + * Redistribution of source code of any substantial portion of the Covered + * Code or modification with rights to further distribute source must include + * the above Copyright Notice, the above License, this list of Conditions, + * and the following Disclaimer and Export Compliance provision. In addition, + * Licensee must cause all Covered Code to which Licensee contributes to + * contain a file documenting the changes Licensee made to create that Covered + * Code and the date of any change. Licensee must include in that file the + * documentation of any changes made by any predecessor Licensee. Licensee + * must include a prominent statement that the modification is derived, + * directly or indirectly, from Original Intel Code. + * + * 3.2. Redistribution of Source with no Rights to Further Distribute Source. + * Redistribution of source code of any substantial portion of the Covered + * Code or modification without rights to further distribute source must + * include the following Disclaimer and Export Compliance provision in the + * 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 + * make. + * + * 3.3. Redistribution of Executable. Redistribution in executable form of any + * substantial portion of the Covered Code or modification must reproduce the + * above Copyright Notice, and the following Disclaimer and Export Compliance + * provision in the documentation and/or other materials provided with the + * distribution. + * + * 3.4. Intel retains all right, title, and interest in and to the Original + * Intel Code. + * + * 3.5. Neither the name Intel nor any other trademark owned or controlled by + * Intel shall be used in advertising or otherwise to promote the sale, use or + * other dealings in products derived from or relating to the Covered Code + * without prior written authorization from Intel. + * + * 4. Disclaimer and Export Compliance + * + * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED + * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE + * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, + * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY + + * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY + * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A + * PARTICULAR PURPOSE. + * + * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES + * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR + * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, + * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY + * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL + * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS + * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY + * LIMITED REMEDY. + * + * 4.3. Licensee shall not export, either directly or indirectly, any of this + * software or system incorporating such software without first obtaining any + * required license or other approval from the U. S. Department of Commerce or + * any other agency or department of the United States Government. In the + * event Licensee exports any such software from the United States or + * re-exports any such software from a foreign destination, Licensee shall + * 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 + * any of its subsidiaries will export/re-export any technical data, process, + * software, or service, directly or indirectly, to any country for which the + * United States government or any agency thereof requires an export license, + * other governmental approval, or letter of assurance, without first obtaining + * such license, approval or letter. + * + *****************************************************************************/ + +#define __EXCONFIG_C__ + +#include <contrib/dev/acpica/acpi.h> +#include <contrib/dev/acpica/acinterp.h> +#include <contrib/dev/acpica/amlcode.h> +#include <contrib/dev/acpica/acnamesp.h> +#include <contrib/dev/acpica/acevents.h> +#include <contrib/dev/acpica/actables.h> +#include <contrib/dev/acpica/acdispat.h> + + +#define _COMPONENT ACPI_EXECUTER + ACPI_MODULE_NAME ("exconfig") + +/* Local prototypes */ + +static ACPI_STATUS +AcpiExAddTable ( + ACPI_NATIVE_UINT TableIndex, + ACPI_NAMESPACE_NODE *ParentNode, + ACPI_OPERAND_OBJECT **DdbHandle); + + +/******************************************************************************* + * + * FUNCTION: AcpiExAddTable + * + * PARAMETERS: Table - Pointer to raw table + * ParentNode - Where to load the table (scope) + * DdbHandle - Where to return the table handle. + * + * RETURN: Status + * + * DESCRIPTION: Common function to Install and Load an ACPI table with a + * returned table handle. + * + ******************************************************************************/ + +static ACPI_STATUS +AcpiExAddTable ( + ACPI_NATIVE_UINT TableIndex, + ACPI_NAMESPACE_NODE *ParentNode, + ACPI_OPERAND_OBJECT **DdbHandle) +{ + ACPI_STATUS Status; + ACPI_OPERAND_OBJECT *ObjDesc; + + + ACPI_FUNCTION_TRACE (ExAddTable); + + + /* Create an object to be the table handle */ + + ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_REFERENCE); + if (!ObjDesc) + { + return_ACPI_STATUS (AE_NO_MEMORY); + } + + /* Init the table handle */ + + ObjDesc->Reference.Opcode = AML_LOAD_OP; + *DdbHandle = ObjDesc; + + /* Install the new table into the local data structures */ + + ObjDesc->Reference.Object = ACPI_CAST_PTR (void, TableIndex); + + /* Add the table to the namespace */ + + Status = AcpiNsLoadTable (TableIndex, ParentNode); + if (ACPI_FAILURE (Status)) + { + AcpiUtRemoveReference (ObjDesc); + *DdbHandle = NULL; + } + + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiExLoadTableOp + * + * PARAMETERS: WalkState - Current state with operands + * ReturnDesc - Where to store the return object + * + * RETURN: Status + * + * DESCRIPTION: Load an ACPI table from the RSDT/XSDT + * + ******************************************************************************/ + +ACPI_STATUS +AcpiExLoadTableOp ( + ACPI_WALK_STATE *WalkState, + ACPI_OPERAND_OBJECT **ReturnDesc) +{ + ACPI_STATUS Status; + ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; + ACPI_NATIVE_UINT TableIndex; + ACPI_NAMESPACE_NODE *ParentNode; + ACPI_NAMESPACE_NODE *StartNode; + ACPI_NAMESPACE_NODE *ParameterNode = NULL; + ACPI_OPERAND_OBJECT *DdbHandle; + ACPI_TABLE_HEADER *Table; + + + ACPI_FUNCTION_TRACE (ExLoadTableOp); + + + /* Find the ACPI table in the RSDT/XSDT */ + + Status = AcpiTbFindTable (Operand[0]->String.Pointer, + Operand[1]->String.Pointer, + Operand[2]->String.Pointer, &TableIndex); + if (ACPI_FAILURE (Status)) + { + if (Status != AE_NOT_FOUND) + { + return_ACPI_STATUS (Status); + } + + /* Table not found, return an Integer=0 and AE_OK */ + + DdbHandle = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); + if (!DdbHandle) + { + return_ACPI_STATUS (AE_NO_MEMORY); + } + + DdbHandle->Integer.Value = 0; + *ReturnDesc = DdbHandle; + + return_ACPI_STATUS (AE_OK); + } + + /* Default nodes */ + + StartNode = WalkState->ScopeInfo->Scope.Node; + ParentNode = AcpiGbl_RootNode; + + /* RootPath (optional parameter) */ + + if (Operand[3]->String.Length > 0) + { + /* + * Find the node referenced by the RootPathString. This is the + * location within the namespace where the table will be loaded. + */ + Status = AcpiNsGetNode (StartNode, Operand[3]->String.Pointer, + ACPI_NS_SEARCH_PARENT, &ParentNode); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + } + + /* ParameterPath (optional parameter) */ + + if (Operand[4]->String.Length > 0) + { + if ((Operand[4]->String.Pointer[0] != '\\') && + (Operand[4]->String.Pointer[0] != '^')) + { + /* + * Path is not absolute, so it will be relative to the node + * referenced by the RootPathString (or the NS root if omitted) + */ + StartNode = ParentNode; + } + + /* Find the node referenced by the ParameterPathString */ + + Status = AcpiNsGetNode (StartNode, Operand[4]->String.Pointer, + ACPI_NS_SEARCH_PARENT, &ParameterNode); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + } + + /* Load the table into the namespace */ + + Status = AcpiExAddTable (TableIndex, ParentNode, &DdbHandle); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Parameter Data (optional) */ + + if (ParameterNode) + { + /* Store the parameter data into the optional parameter object */ + + Status = AcpiExStore (Operand[5], + ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, ParameterNode), + WalkState); + if (ACPI_FAILURE (Status)) + { + (void) AcpiExUnloadTable (DdbHandle); + return_ACPI_STATUS (Status); + } + } + + Status = AcpiGetTableByIndex (TableIndex, &Table); + if (ACPI_SUCCESS (Status)) + { + ACPI_INFO ((AE_INFO, + "Dynamic OEM Table Load - [%4.4s] OemId [%6.6s] OemTableId [%8.8s]", + Table->Signature, Table->OemId, Table->OemTableId)); + } + + *ReturnDesc = DdbHandle; + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiExLoadOp + * + * PARAMETERS: ObjDesc - Region or Buffer/Field where the table will be + * obtained + * Target - Where a handle to the table will be stored + * WalkState - Current state + * + * RETURN: Status + * + * DESCRIPTION: Load an ACPI table from a field or operation region + * + * NOTE: Region Fields (Field, BankField, IndexFields) are resolved to buffer + * objects before this code is reached. + * + * If source is an operation region, it must refer to SystemMemory, as + * per the ACPI specification. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiExLoadOp ( + ACPI_OPERAND_OBJECT *ObjDesc, + ACPI_OPERAND_OBJECT *Target, + ACPI_WALK_STATE *WalkState) +{ + ACPI_OPERAND_OBJECT *DdbHandle; + ACPI_TABLE_DESC TableDesc; + ACPI_NATIVE_UINT TableIndex; + ACPI_STATUS Status; + + + ACPI_FUNCTION_TRACE (ExLoadOp); + + + ACPI_MEMSET (&TableDesc, 0, sizeof (ACPI_TABLE_DESC)); + TableDesc.Flags = ACPI_TABLE_ORIGIN_ALLOCATED; + + /* Source Object can be either an OpRegion or a Buffer/Field */ + + switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) + { + case ACPI_TYPE_REGION: + + /* Region must be SystemMemory (from ACPI spec) */ + + if (ObjDesc->Region.SpaceId != ACPI_ADR_SPACE_SYSTEM_MEMORY) + { + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + + ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Load from Region %p %s\n", + ObjDesc, AcpiUtGetObjectTypeName (ObjDesc))); + + /* + * If the Region Address and Length have not been previously evaluated, + * evaluate them now and save the results. + */ + if (!(ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)) + { + Status = AcpiDsGetRegionArguments (ObjDesc); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + } + + TableDesc.Address = ObjDesc->Region.Address; + TableDesc.Length = ObjDesc->Region.Length; + TableDesc.Flags = ACPI_TABLE_ORIGIN_MAPPED; + break; + + case ACPI_TYPE_BUFFER: /* Buffer or resolved RegionField */ + + /* Simply extract the buffer from the buffer object */ + + ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Load from Buffer or Field %p %s\n", + ObjDesc, AcpiUtGetObjectTypeName (ObjDesc))); + + TableDesc.Pointer = ACPI_CAST_PTR (ACPI_TABLE_HEADER, + ObjDesc->Buffer.Pointer); + TableDesc.Length = TableDesc.Pointer->Length; + TableDesc.Flags = ACPI_TABLE_ORIGIN_ALLOCATED; + + ObjDesc->Buffer.Pointer = NULL; + break; + + default: + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + + /* + * Install the new table into the local data structures + */ + Status = AcpiTbAddTable (&TableDesc, &TableIndex); + if (ACPI_FAILURE (Status)) + { + goto Cleanup; + } + + Status = AcpiExAddTable (TableIndex, AcpiGbl_RootNode, &DdbHandle); + if (ACPI_FAILURE (Status)) + { + /* On error, TablePtr was deallocated above */ + + return_ACPI_STATUS (Status); + } + + /* Store the DdbHandle into the Target operand */ + + Status = AcpiExStore (DdbHandle, Target, WalkState); + if (ACPI_FAILURE (Status)) + { + (void) AcpiExUnloadTable (DdbHandle); + + /* TablePtr was deallocated above */ + + return_ACPI_STATUS (Status); + } + +Cleanup: + if (ACPI_FAILURE (Status)) + { + AcpiTbDeleteTable (&TableDesc); + } + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiExUnloadTable + * + * PARAMETERS: DdbHandle - Handle to a previously loaded table + * + * RETURN: Status + * + * DESCRIPTION: Unload an ACPI table + * + ******************************************************************************/ + +ACPI_STATUS +AcpiExUnloadTable ( + ACPI_OPERAND_OBJECT *DdbHandle) +{ + ACPI_STATUS Status = AE_OK; + ACPI_OPERAND_OBJECT *TableDesc = DdbHandle; + ACPI_NATIVE_UINT TableIndex; + + + ACPI_FUNCTION_TRACE (ExUnloadTable); + + + /* + * Validate the handle + * Although the handle is partially validated in AcpiExReconfiguration(), + * when it calls AcpiExResolveOperands(), the handle is more completely + * validated here. + */ + if ((!DdbHandle) || + (ACPI_GET_DESCRIPTOR_TYPE (DdbHandle) != ACPI_DESC_TYPE_OPERAND) || + (ACPI_GET_OBJECT_TYPE (DdbHandle) != ACPI_TYPE_LOCAL_REFERENCE)) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + /* Get the table index from the DdbHandle */ + + TableIndex = (ACPI_NATIVE_UINT) TableDesc->Reference.Object; + + /* + * Delete the entire namespace under this table Node + * (Offset contains the TableId) + */ + AcpiTbDeleteNamespaceByOwner (TableIndex); + AcpiTbReleaseOwnerId (TableIndex); + + AcpiTbSetTableLoadedFlag (TableIndex, FALSE); + + /* Delete the table descriptor (DdbHandle) */ + + AcpiUtRemoveReference (TableDesc); + return_ACPI_STATUS (Status); +} + |
