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Diffstat (limited to 'sys/contrib/dev/acpica/exconfig.c')
| -rw-r--r-- | sys/contrib/dev/acpica/exconfig.c | 433 |
1 files changed, 433 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..835bc76 --- /dev/null +++ b/sys/contrib/dev/acpica/exconfig.c @@ -0,0 +1,433 @@ +/****************************************************************************** + * + * Module Name: amconfig - Namespace reconfiguration (Load/Unload opcodes) + * $Revision: 24 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999, 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 __AMCONFIG_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 INTERPRETER + MODULE_NAME ("amconfig") + + +/***************************************************************************** + * + * FUNCTION: AcpiAmlExecLoadTable + * + * 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 +AcpiAmlExecLoadTable ( + ACPI_OPERAND_OBJECT *RgnDesc, + ACPI_HANDLE *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 ("AmlExecLoadTable"); + + /* 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, ADDRESS_SPACE_READ, + i, 8, (UINT32 *) ((UINT8 *) &TableHeader + i)); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + } + + /* Allocate a buffer for the entire table */ + + TablePtr = AcpiCmAllocate (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, ADDRESS_SPACE_READ, + 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))) + { + DEBUG_PRINT (ACPI_ERROR, + ("Table has invalid signature [%4.4s], must be SSDT or PSDT\n", + TableHeader.Signature)); + Status = AE_BAD_SIGNATURE; + goto Cleanup; + } + + /* Create an object to be the table handle */ + + TableDesc = AcpiCmCreateInternalObject (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; + + *DdbHandle = TableDesc; + + return_ACPI_STATUS (Status); + + +Cleanup: + + AcpiCmFree (TableDesc); + AcpiCmFree (TablePtr); + return_ACPI_STATUS (Status); + +} + + +/***************************************************************************** + * + * FUNCTION: AcpiAmlExecUnloadTable + * + * PARAMETERS: DdbHandle - Handle to a previously loaded table + * + * RETURN: Status + * + * DESCRIPTION: Unload an ACPI table + * + ****************************************************************************/ + +ACPI_STATUS +AcpiAmlExecUnloadTable ( + ACPI_HANDLE DdbHandle) +{ + ACPI_STATUS Status = AE_NOT_IMPLEMENTED; + ACPI_OPERAND_OBJECT *TableDesc = (ACPI_OPERAND_OBJECT *) DdbHandle; + ACPI_TABLE_DESC *TableInfo; + + + FUNCTION_TRACE ("AmlExecUnloadTable"); + + + /* Validate the handle */ + /* Although the handle is partially validated in AcpiAmlExecReconfiguration(), + * when it calls AcpiAmlResolveOperands(), 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) */ + + AcpiCmRemoveReference (TableDesc); + + return_ACPI_STATUS (Status); +} + + +/***************************************************************************** + * + * FUNCTION: AcpiAmlExecReconfiguration + * + * PARAMETERS: Opcode - The opcode to be executed + * WalkState - Current state of the parse tree walk + * + * RETURN: Status + * + * DESCRIPTION: Reconfiguration opcodes such as LOAD and UNLOAD + * + ****************************************************************************/ + +ACPI_STATUS +AcpiAmlExecReconfiguration ( + UINT16 Opcode, + ACPI_WALK_STATE *WalkState) +{ + ACPI_STATUS Status; + ACPI_OPERAND_OBJECT *RegionDesc = NULL; + ACPI_HANDLE *DdbHandle; + + + FUNCTION_TRACE ("AmlExecReconfiguration"); + + + /* Resolve the operands */ + + Status = AcpiAmlResolveOperands (Opcode, WALK_OPERANDS, WalkState); + DUMP_OPERANDS (WALK_OPERANDS, IMODE_EXECUTE, AcpiPsGetOpcodeName (Opcode), + 2, "after AcpiAmlResolveOperands"); + + /* Get the table handle, common for both opcodes */ + + Status |= AcpiDsObjStackPopObject ((ACPI_OPERAND_OBJECT **) &DdbHandle, + WalkState); + + switch (Opcode) + { + + case AML_LOAD_OP: + + /* Get the region or field descriptor */ + + Status |= AcpiDsObjStackPopObject (&RegionDesc, WalkState); + if (ACPI_FAILURE (Status)) + { + DEBUG_PRINT (ACPI_ERROR, + ("ExecReconfiguration/AML_LOAD_OP: bad operand(s) (0x%X)\n", + Status)); + + AcpiCmRemoveReference (RegionDesc); + return_ACPI_STATUS (Status); + } + + Status = AcpiAmlExecLoadTable (RegionDesc, DdbHandle); + break; + + + case AML_UNLOAD_OP: + + if (ACPI_FAILURE (Status)) + { + DEBUG_PRINT (ACPI_ERROR, + ("ExecReconfiguration/AML_UNLOAD_OP: bad operand(s) (0x%X)\n", + Status)); + + return_ACPI_STATUS (Status); + } + + Status = AcpiAmlExecUnloadTable (DdbHandle); + break; + + + default: + + DEBUG_PRINT (ACPI_ERROR, ("AmlExecReconfiguration: bad opcode=%X\n", + Opcode)); + + Status = AE_AML_BAD_OPCODE; + break; + } + + + return_ACPI_STATUS (Status); +} + |
