/****************************************************************************** * * Module Name: exconfig - Namespace reconfiguration (Load/Unload opcodes) * $Revision: 44 $ * *****************************************************************************/ /****************************************************************************** * * 1. Copyright Notice * * Some or all of this work - Copyright (c) 1999, 2000, 2001, 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 "acparser.h" #include "acinterp.h" #include "amlcode.h" #include "acnamesp.h" #include "acevents.h" #include "actables.h" #include "acdispat.h" #define _COMPONENT ACPI_EXECUTER MODULE_NAME ("exconfig") /***************************************************************************** * * FUNCTION: AcpiExLoadTableOp * * PARAMETERS: RgnDesc - Op region where the table will be obtained * DdbHandle - Where a handle to the table will be returned * * RETURN: Status * * DESCRIPTION: Load an ACPI table * ****************************************************************************/ ACPI_STATUS AcpiExLoadOp ( ACPI_OPERAND_OBJECT *RgnDesc, ACPI_OPERAND_OBJECT *DdbHandle) { ACPI_STATUS Status; ACPI_OPERAND_OBJECT *TableDesc = NULL; UINT8 *TablePtr; UINT8 *TableDataPtr; ACPI_TABLE_HEADER TableHeader; ACPI_TABLE_DESC TableInfo; UINT32 i; FUNCTION_TRACE ("ExLoadOp"); /* TBD: [Unhandled] Object can be either a field or an opregion */ /* Get the table header */ TableHeader.Length = 0; for (i = 0; i < sizeof (ACPI_TABLE_HEADER); i++) { Status = AcpiEvAddressSpaceDispatch (RgnDesc, ACPI_READ_ADR_SPACE, (ACPI_PHYSICAL_ADDRESS) i, 8, (UINT32 *) ((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 */ MEMCPY (TablePtr, &TableHeader, sizeof (ACPI_TABLE_HEADER)); TableDataPtr = TablePtr + sizeof (ACPI_TABLE_HEADER); /* Get the table from the op region */ for (i = 0; i < TableHeader.Length; i++) { Status = AcpiEvAddressSpaceDispatch (RgnDesc, ACPI_READ_ADR_SPACE, (ACPI_PHYSICAL_ADDRESS) i, 8, (UINT32 *) (TableDataPtr + i)); if (ACPI_FAILURE (Status)) { goto Cleanup; } } /* Table must be either an SSDT or a PSDT */ if ((!STRNCMP (TableHeader.Signature, AcpiGbl_AcpiTableData[ACPI_TABLE_PSDT].Signature, AcpiGbl_AcpiTableData[ACPI_TABLE_PSDT].SigLength)) && (!STRNCMP (TableHeader.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", (char*)TableHeader.Signature)); Status = AE_BAD_SIGNATURE; goto Cleanup; } /* Create an object to be the table handle */ TableDesc = AcpiUtCreateInternalObject (INTERNAL_TYPE_REFERENCE); if (!TableDesc) { Status = AE_NO_MEMORY; goto Cleanup; } /* Install the new table into the local data structures */ TableInfo.Pointer = (ACPI_TABLE_HEADER *) TablePtr; TableInfo.Length = TableHeader.Length; TableInfo.Allocation = ACPI_MEM_ALLOCATED; TableInfo.BasePointer = TablePtr; Status = AcpiTbInstallTable (NULL, &TableInfo); if (ACPI_FAILURE (Status)) { goto Cleanup; } /* Add the table to the namespace */ /* TBD: [Restructure] - change to whatever new interface is appropriate */ /* Status = AcpiLoadNamespace (); if (ACPI_FAILURE (Status)) { */ /* TBD: [Errors] Unload the table on failure ? */ /* goto Cleanup; } */ /* TBD: [Investigate] we need a pointer to the table desc */ /* Init the table handle */ TableDesc->Reference.Opcode = AML_LOAD_OP; TableDesc->Reference.Object = TableInfo.InstalledDesc; /* TBD: store the tabledesc into the DdbHandle target */ /* DdbHandle = TableDesc; */ return_ACPI_STATUS (Status); Cleanup: ACPI_MEM_FREE (TableDesc); 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; 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) || (!VALID_DESCRIPTOR_TYPE (DdbHandle, ACPI_DESC_TYPE_INTERNAL)) || (((ACPI_OPERAND_OBJECT *)DdbHandle)->Common.Type != INTERNAL_TYPE_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) */ Status = AcpiNsDeleteNamespaceByOwner (TableInfo->TableId); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* Delete the table itself */ AcpiTbUninstallTable (TableInfo->InstalledDesc); /* Delete the table descriptor (DdbHandle) */ AcpiUtRemoveReference (TableDesc); return_ACPI_STATUS (Status); }