diff options
Diffstat (limited to 'sys/contrib/dev/acpica/Subsystem/Events/evrgnini.c')
| -rw-r--r-- | sys/contrib/dev/acpica/Subsystem/Events/evrgnini.c | 557 |
1 files changed, 557 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/Subsystem/Events/evrgnini.c b/sys/contrib/dev/acpica/Subsystem/Events/evrgnini.c new file mode 100644 index 0000000..b4aaa7a --- /dev/null +++ b/sys/contrib/dev/acpica/Subsystem/Events/evrgnini.c @@ -0,0 +1,557 @@ +/****************************************************************************** + * + * Module Name: evrgnini- ACPI AddressSpace / OpRegion init + * $Revision: 27 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 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 __EVRGNINI_C__ + +#include "acpi.h" +#include "acevents.h" +#include "acnamesp.h" +#include "acinterp.h" +#include "amlcode.h" + +#define _COMPONENT EVENT_HANDLING + MODULE_NAME ("evrgnini") + + +/***************************************************************************** + * + * FUNCTION: AcpiEvSystemMemoryRegionSetup + * + * PARAMETERS: RegionObj - region we are interested in + * Function - start or stop + * HandlerContext - Address space handler context + * RegionContext - Region specific context + * + * RETURN: Status + * + * DESCRIPTION: Do any prep work for region handling, a nop for now + * + ****************************************************************************/ + +ACPI_STATUS +AcpiEvSystemMemoryRegionSetup ( + ACPI_HANDLE Handle, + UINT32 Function, + void *HandlerContext, + void **RegionContext) +{ + FUNCTION_TRACE ("EvSystemMemoryRegionSetup"); + + + if (Function == ACPI_REGION_DEACTIVATE) + { + if (*RegionContext) + { + AcpiCmFree (*RegionContext); + *RegionContext = NULL; + } + return_ACPI_STATUS (AE_OK); + } + + + /* Activate. Create a new context */ + + *RegionContext = AcpiCmCallocate (sizeof (MEM_HANDLER_CONTEXT)); + if (!(*RegionContext)) + { + return_ACPI_STATUS (AE_NO_MEMORY); + } + + return_ACPI_STATUS (AE_OK); +} + + +/***************************************************************************** + * + * FUNCTION: AcpiEvIoSpaceRegionSetup + * + * PARAMETERS: RegionObj - region we are interested in + * Function - start or stop + * HandlerContext - Address space handler context + * RegionContext - Region specific context + * + * RETURN: Status + * + * DESCRIPTION: Do any prep work for region handling + * + ****************************************************************************/ + +ACPI_STATUS +AcpiEvIoSpaceRegionSetup ( + ACPI_HANDLE Handle, + UINT32 Function, + void *HandlerContext, + void **RegionContext) +{ + FUNCTION_TRACE ("EvIoSpaceRegionSetup"); + + if (Function == ACPI_REGION_DEACTIVATE) + { + *RegionContext = NULL; + } + else + { + *RegionContext = HandlerContext; + } + + return_ACPI_STATUS (AE_OK); +} + + +/***************************************************************************** + * + * FUNCTION: AcpiEvPciConfigRegionSetup + * + * PARAMETERS: RegionObj - region we are interested in + * Function - start or stop + * HandlerContext - Address space handler context + * RegionContext - Region specific context + * + * RETURN: Status + * + * DESCRIPTION: Do any prep work for region handling + * + * MUTEX: Assumes namespace is not locked + * + ****************************************************************************/ + +ACPI_STATUS +AcpiEvPciConfigRegionSetup ( + ACPI_HANDLE Handle, + UINT32 Function, + void *HandlerContext, + void **RegionContext) +{ + ACPI_STATUS Status = AE_OK; + ACPI_INTEGER Temp; + PCI_HANDLER_CONTEXT *PciContext = *RegionContext; + ACPI_OPERAND_OBJECT *HandlerObj; + ACPI_NAMESPACE_NODE *Node; + ACPI_OPERAND_OBJECT *RegionObj = (ACPI_OPERAND_OBJECT *) Handle; + DEVICE_ID ObjectHID; + + FUNCTION_TRACE ("EvPciConfigRegionSetup"); + + HandlerObj = RegionObj->Region.AddrHandler; + + if (!HandlerObj) + { + /* + * No installed handler. This shouldn't happen because the dispatch + * routine checks before we get here, but we check again just in case. + */ + DEBUG_PRINT (TRACE_OPREGION, + ("Attempting to init a region 0x%X, with no handler\n", RegionObj)); + return_ACPI_STATUS(AE_NOT_EXIST); + } + + if (Function == ACPI_REGION_DEACTIVATE) + { + if (PciContext) + { + AcpiCmFree (PciContext); + *RegionContext = NULL; + } + + return_ACPI_STATUS (Status); + } + + + /* Create a new context */ + + PciContext = AcpiCmCallocate (sizeof(PCI_HANDLER_CONTEXT)); + if (!PciContext) + { + return_ACPI_STATUS (AE_NO_MEMORY); + } + + /* + * For PCI Config space access, we have to pass the segment, bus, + * device and function numbers. This routine must acquire those. + */ + + /* + * First get device and function numbers from the _ADR object + * in the parent's scope. + */ + ACPI_ASSERT(RegionObj->Region.Node); + + Node = AcpiNsGetParentObject (RegionObj->Region.Node); + + + /* AcpiEvaluate the _ADR object */ + + Status = AcpiCmEvaluateNumericObject (METHOD_NAME__ADR, Node, &Temp); + /* + * The default is zero, since the allocation above zeroed the data, just + * do nothing on failures. + */ + if (ACPI_SUCCESS (Status)) + { + /* + * Got it.. + */ + PciContext->DevFunc = (UINT32) Temp; + } + + /* + * Get the _SEG and _BBN values from the device upon which the handler + * is installed. + * + * We need to get the _SEG and _BBN objects relative to the PCI BUS device. + * This is the device the handler has been registered to handle. + */ + + /* + * If the AddrHandler.Node is still pointing to the root, we need + * to scan upward for a PCI Root bridge and re-associate the OpRegion + * handlers with that device. + */ + if (HandlerObj->AddrHandler.Node == AcpiGbl_RootNode) + { + /* + * Node is currently the parent object + */ + while (Node != AcpiGbl_RootNode) + { + Status = AcpiCmExecute_HID(Node, &ObjectHID); + + if (ACPI_SUCCESS (Status)) + { + if (!(STRNCMP(ObjectHID.Buffer, PCI_ROOT_HID_STRING, + sizeof (PCI_ROOT_HID_STRING)))) + { + AcpiInstallAddressSpaceHandler(Node, + ADDRESS_SPACE_PCI_CONFIG, + ACPI_DEFAULT_HANDLER, NULL, NULL); + + break; + } + } + + Node = AcpiNsGetParentObject(Node); + } + } + else + { + Node = HandlerObj->AddrHandler.Node; + } + + Status = AcpiCmEvaluateNumericObject (METHOD_NAME__SEG, Node, &Temp); + if (ACPI_SUCCESS (Status)) + { + /* + * Got it.. + */ + PciContext->Seg = (UINT32) Temp; + } + + Status = AcpiCmEvaluateNumericObject (METHOD_NAME__BBN, Node, &Temp); + if (ACPI_SUCCESS (Status)) + { + /* + * Got it.. + */ + PciContext->Bus = (UINT32) Temp; + } + + *RegionContext = PciContext; + + return_ACPI_STATUS (AE_OK); +} + + +/***************************************************************************** + * + * FUNCTION: AcpiEvDefaultRegionSetup + * + * PARAMETERS: RegionObj - region we are interested in + * Function - start or stop + * HandlerContext - Address space handler context + * RegionContext - Region specific context + * + * RETURN: Status + * + * DESCRIPTION: Do any prep work for region handling + * + ****************************************************************************/ + +ACPI_STATUS +AcpiEvDefaultRegionSetup ( + ACPI_HANDLE Handle, + UINT32 Function, + void *HandlerContext, + void **RegionContext) +{ + FUNCTION_TRACE ("EvDefaultRegionSetup"); + + if (Function == ACPI_REGION_DEACTIVATE) + { + *RegionContext = NULL; + } + else + { + *RegionContext = HandlerContext; + } + + return_ACPI_STATUS (AE_OK); +} + + +/****************************************************************************** + * + * FUNCTION: AcpiEvInitializeRegion + * + * PARAMETERS: RegionObj - Region we are initializing + * + * RETURN: Status + * + * DESCRIPTION: Initializes the region, finds any _REG methods and saves them + * for execution at a later time + * + * Get the appropriate address space handler for a newly + * created region. + * + * This also performs address space specific intialization. For + * example, PCI regions must have an _ADR object that contains + * a PCI address in the scope of the defintion. This address is + * required to perform an access to PCI config space. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiEvInitializeRegion ( + ACPI_OPERAND_OBJECT *RegionObj, + BOOLEAN AcpiNsLocked) +{ + ACPI_OPERAND_OBJECT *HandlerObj; + ACPI_OPERAND_OBJECT *ObjDesc; + UINT32 SpaceId; + ACPI_NAMESPACE_NODE *Node; + ACPI_STATUS Status; + ACPI_NAMESPACE_NODE *MethodNode; + ACPI_NAME *RegNamePtr = (ACPI_NAME *) METHOD_NAME__REG; + + + FUNCTION_TRACE_U32 ("EvInitializeRegion", AcpiNsLocked); + + + if (!RegionObj) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + ACPI_ASSERT(RegionObj->Region.Node); + + Node = AcpiNsGetParentObject (RegionObj->Region.Node); + SpaceId = RegionObj->Region.SpaceId; + + RegionObj->Region.AddrHandler = NULL; + RegionObj->Region.Extra->Extra.Method_REG = NULL; + RegionObj->Region.Flags &= ~(AOPOBJ_INITIALIZED); + + /* + * Find any "_REG" associated with this region definition + */ + Status = AcpiNsSearchNode (*RegNamePtr, Node, + ACPI_TYPE_METHOD, &MethodNode); + if (ACPI_SUCCESS (Status)) + { + /* + * The _REG method is optional and there can be only one per region + * definition. This will be executed when the handler is attached + * or removed + */ + RegionObj->Region.Extra->Extra.Method_REG = MethodNode; + } + + /* + * The following loop depends upon the root Node having no parent + * ie: AcpiGbl_RootNode->ParentEntry being set to NULL + */ + while (Node) + { + /* + * Check to see if a handler exists + */ + HandlerObj = NULL; + ObjDesc = AcpiNsGetAttachedObject ((ACPI_HANDLE) Node); + if (ObjDesc) + { + /* + * can only be a handler if the object exists + */ + switch (Node->Type) + { + case ACPI_TYPE_DEVICE: + + HandlerObj = ObjDesc->Device.AddrHandler; + break; + + case ACPI_TYPE_PROCESSOR: + + HandlerObj = ObjDesc->Processor.AddrHandler; + break; + + case ACPI_TYPE_THERMAL: + + HandlerObj = ObjDesc->ThermalZone.AddrHandler; + break; + } + + while (HandlerObj) + { + /* + * This guy has at least one address handler + * see if it has the type we want + */ + if (HandlerObj->AddrHandler.SpaceId == SpaceId) + { + DEBUG_PRINT (TRACE_OPREGION, + ("Found handler (0x%X) for region 0x%X in obj 0x%X\n", + HandlerObj, RegionObj, ObjDesc)); + + /* + * Found it! Now update the region and the handler + */ + AcpiEvAssociateRegionAndHandler (HandlerObj, RegionObj, AcpiNsLocked); + return_ACPI_STATUS (AE_OK); + } + + HandlerObj = HandlerObj->AddrHandler.Next; + + } /* while handlerobj */ + } + + /* + * This one does not have the handler we need + * Pop up one level + */ + Node = AcpiNsGetParentObject (Node); + + } /* while Node != ROOT */ + + /* + * If we get here, there is no handler for this region + */ + DEBUG_PRINT (TRACE_OPREGION, + ("No handler currently for SpaceId[%d] (Initializing region 0x%X)\n", + SpaceId, RegionObj)); + + return_ACPI_STATUS (AE_NOT_EXIST); +} + |
