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Diffstat (limited to 'sys/contrib/dev/acpica/exconfig.c')
| -rw-r--r-- | sys/contrib/dev/acpica/exconfig.c | 563 |
1 files changed, 563 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..409f2d3 --- /dev/null +++ b/sys/contrib/dev/acpica/exconfig.c @@ -0,0 +1,563 @@ +/****************************************************************************** + * + * Module Name: exconfig - Namespace reconfiguration (Load/Unload opcodes) + * $Revision: 69 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999 - 2002, 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 "acpi.h" +#include "acinterp.h" +#include "amlcode.h" +#include "acnamesp.h" +#include "acevents.h" +#include "actables.h" + + +#define _COMPONENT ACPI_EXECUTER + ACPI_MODULE_NAME ("exconfig") + + +/******************************************************************************* + * + * 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. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiExAddTable ( + ACPI_TABLE_HEADER *Table, + ACPI_NAMESPACE_NODE *ParentNode, + ACPI_OPERAND_OBJECT **DdbHandle) +{ + ACPI_STATUS Status; + ACPI_TABLE_DESC TableInfo; + 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); + } + + /* Install the new table into the local data structures */ + + TableInfo.Pointer = Table; + TableInfo.Length = (ACPI_SIZE) Table->Length; + TableInfo.Allocation = ACPI_MEM_ALLOCATED; + + Status = AcpiTbInstallTable (&TableInfo); + if (ACPI_FAILURE (Status)) + { + goto Cleanup; + } + + /* Add the table to the namespace */ + + Status = AcpiNsLoadTable (TableInfo.InstalledDesc, ParentNode); + if (ACPI_FAILURE (Status)) + { + /* Uninstall table on error */ + + (void) AcpiTbUninstallTable (TableInfo.InstalledDesc); + goto Cleanup; + } + + /* Init the table handle */ + + ObjDesc->Reference.Opcode = AML_LOAD_OP; + ObjDesc->Reference.Object = TableInfo.InstalledDesc; + *DdbHandle = ObjDesc; + return_ACPI_STATUS (AE_OK); + + +Cleanup: + AcpiUtRemoveReference (ObjDesc); + 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 + * + ******************************************************************************/ + +ACPI_STATUS +AcpiExLoadTableOp ( + ACPI_WALK_STATE *WalkState, + ACPI_OPERAND_OBJECT **ReturnDesc) +{ + ACPI_STATUS Status; + ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; + ACPI_TABLE_HEADER *Table; + ACPI_NAMESPACE_NODE *ParentNode; + ACPI_NAMESPACE_NODE *StartNode; + ACPI_NAMESPACE_NODE *ParameterNode = NULL; + ACPI_OPERAND_OBJECT *DdbHandle; + + + ACPI_FUNCTION_TRACE ("ExLoadTableOp"); + + +#if 0 + /* + * Make sure that the signature does not match one of the tables that + * is already loaded. + */ + Status = AcpiTbMatchSignature (Operand[0]->String.Pointer, NULL); + if (Status == AE_OK) + { + /* Signature matched -- don't allow override */ + + return_ACPI_STATUS (AE_ALREADY_EXISTS); + } +#endif + + /* Find the ACPI table */ + + Status = AcpiTbFindTable (Operand[0]->String.Pointer, + Operand[1]->String.Pointer, + Operand[2]->String.Pointer, &Table); + if (ACPI_FAILURE (Status)) + { + if (Status != AE_NOT_FOUND) + { + return_ACPI_STATUS (Status); + } + + /* 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 = AcpiNsGetNodeByPath (Operand[3]->String.Pointer, StartNode, + 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 = AcpiNsGetNodeByPath (Operand[4]->String.Pointer, StartNode, + ACPI_NS_SEARCH_PARENT, &ParameterNode); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + } + + /* Load the table into the namespace */ + + Status = AcpiExAddTable (Table, 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); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiExLoadOp + * + * PARAMETERS: ObjDesc - Region or 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 + * + ******************************************************************************/ + +ACPI_STATUS +AcpiExLoadOp ( + ACPI_OPERAND_OBJECT *ObjDesc, + ACPI_OPERAND_OBJECT *Target, + ACPI_WALK_STATE *WalkState) +{ + ACPI_STATUS Status; + ACPI_OPERAND_OBJECT *DdbHandle; + ACPI_OPERAND_OBJECT *BufferDesc = NULL; + ACPI_TABLE_HEADER *TablePtr = NULL; + UINT8 *TableDataPtr; + ACPI_TABLE_HEADER TableHeader; + UINT32 i; + + ACPI_FUNCTION_TRACE ("ExLoadOp"); + + + /* Object can be either an OpRegion or a Field */ + + switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) + { + case ACPI_TYPE_REGION: + + ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Load from Region %p %s\n", + ObjDesc, AcpiUtGetObjectTypeName (ObjDesc))); + + /* Get the table header */ + + TableHeader.Length = 0; + for (i = 0; i < sizeof (ACPI_TABLE_HEADER); i++) + { + Status = AcpiEvAddressSpaceDispatch (ObjDesc, ACPI_READ, + (ACPI_PHYSICAL_ADDRESS) i, 8, + ((UINT8 *) &TableHeader) + i); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + } + + /* Allocate a buffer for the entire table */ + + TablePtr = ACPI_MEM_ALLOCATE (TableHeader.Length); + if (!TablePtr) + { + return_ACPI_STATUS (AE_NO_MEMORY); + } + + /* Copy the header to the buffer */ + + ACPI_MEMCPY (TablePtr, &TableHeader, sizeof (ACPI_TABLE_HEADER)); + TableDataPtr = ACPI_PTR_ADD (UINT8, TablePtr, sizeof (ACPI_TABLE_HEADER)); + + /* Get the table from the op region */ + + for (i = 0; i < TableHeader.Length; i++) + { + Status = AcpiEvAddressSpaceDispatch (ObjDesc, ACPI_READ, + (ACPI_PHYSICAL_ADDRESS) i, 8, + ((UINT8 *) TableDataPtr + i)); + if (ACPI_FAILURE (Status)) + { + goto Cleanup; + } + } + break; + + + case ACPI_TYPE_BUFFER_FIELD: + case ACPI_TYPE_LOCAL_REGION_FIELD: + case ACPI_TYPE_LOCAL_BANK_FIELD: + case ACPI_TYPE_LOCAL_INDEX_FIELD: + + ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Load from Field %p %s\n", + ObjDesc, AcpiUtGetObjectTypeName (ObjDesc))); + + /* + * The length of the field must be at least as large as the table. + * Read the entire field and thus the entire table. Buffer is + * allocated during the read. + */ + Status = AcpiExReadDataFromField (WalkState, ObjDesc, &BufferDesc); + if (ACPI_FAILURE (Status)) + { + goto Cleanup; + } + + TablePtr = ACPI_CAST_PTR (ACPI_TABLE_HEADER, BufferDesc->Buffer.Pointer); + break; + + + default: + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + + /* The table must be either an SSDT or a PSDT */ + + if ((!ACPI_STRNCMP (TablePtr->Signature, + AcpiGbl_AcpiTableData[ACPI_TABLE_PSDT].Signature, + AcpiGbl_AcpiTableData[ACPI_TABLE_PSDT].SigLength)) && + (!ACPI_STRNCMP (TablePtr->Signature, + AcpiGbl_AcpiTableData[ACPI_TABLE_SSDT].Signature, + AcpiGbl_AcpiTableData[ACPI_TABLE_SSDT].SigLength))) + { + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Table has invalid signature [%4.4s], must be SSDT or PSDT\n", + TablePtr->Signature)); + Status = AE_BAD_SIGNATURE; + goto Cleanup; + } + + /* Install the new table into the local data structures */ + + Status = AcpiExAddTable (TablePtr, AcpiGbl_RootNode, &DdbHandle); + if (ACPI_FAILURE (Status)) + { + goto Cleanup; + } + + /* Store the DdbHandle into the Target operand */ + + Status = AcpiExStore (DdbHandle, Target, WalkState); + if (ACPI_FAILURE (Status)) + { + (void) AcpiExUnloadTable (DdbHandle); + } + + return_ACPI_STATUS (Status); + + +Cleanup: + + if (BufferDesc) + { + AcpiUtRemoveReference (BufferDesc); + } + else + { + ACPI_MEM_FREE (TablePtr); + } + 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_NOT_IMPLEMENTED; + ACPI_OPERAND_OBJECT *TableDesc = DdbHandle; + ACPI_TABLE_DESC *TableInfo; + + + 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 actual table descriptor from the DdbHandle */ + + TableInfo = (ACPI_TABLE_DESC *) TableDesc->Reference.Object; + + /* + * Delete the entire namespace under this table Node + * (Offset contains the TableId) + */ + AcpiNsDeleteNamespaceByOwner (TableInfo->TableId); + + /* Delete the table itself */ + + (void) AcpiTbUninstallTable (TableInfo->InstalledDesc); + + /* Delete the table descriptor (DdbHandle) */ + + AcpiUtRemoveReference (TableDesc); + return_ACPI_STATUS (Status); +} + |
