/****************************************************************************** * * Module Name: exconfig - Namespace reconfiguration (Load/Unload opcodes) * $Revision: 71 $ * *****************************************************************************/ /****************************************************************************** * * 1. Copyright Notice * * Some or all of this work - Copyright (c) 1999 - 2003, 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. * *****************************************************************************/ /* $DragonFly: src/sys/contrib/dev/acpica/Attic/exconfig.c,v 1.1 2003/09/24 03:32:15 drhodus Exp $ */ #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_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); }