diff options
Diffstat (limited to 'source/components/dispatcher/dsinit.c')
| -rw-r--r-- | source/components/dispatcher/dsinit.c | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/source/components/dispatcher/dsinit.c b/source/components/dispatcher/dsinit.c new file mode 100644 index 000000000000..1c7ad8849258 --- /dev/null +++ b/source/components/dispatcher/dsinit.c @@ -0,0 +1,238 @@ +/****************************************************************************** + * + * Module Name: dsinit - Object initialization namespace walk + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2012, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#define __DSINIT_C__ + +#include "acpi.h" +#include "accommon.h" +#include "acdispat.h" +#include "acnamesp.h" +#include "actables.h" + +#define _COMPONENT ACPI_DISPATCHER + ACPI_MODULE_NAME ("dsinit") + +/* Local prototypes */ + +static ACPI_STATUS +AcpiDsInitOneObject ( + ACPI_HANDLE ObjHandle, + UINT32 Level, + void *Context, + void **ReturnValue); + + +/******************************************************************************* + * + * FUNCTION: AcpiDsInitOneObject + * + * PARAMETERS: ObjHandle - Node for the object + * Level - Current nesting level + * Context - Points to a init info struct + * ReturnValue - Not used + * + * RETURN: Status + * + * DESCRIPTION: Callback from AcpiWalkNamespace. Invoked for every object + * within the namespace. + * + * Currently, the only objects that require initialization are: + * 1) Methods + * 2) Operation Regions + * + ******************************************************************************/ + +static ACPI_STATUS +AcpiDsInitOneObject ( + ACPI_HANDLE ObjHandle, + UINT32 Level, + void *Context, + void **ReturnValue) +{ + ACPI_INIT_WALK_INFO *Info = (ACPI_INIT_WALK_INFO *) Context; + ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle; + ACPI_OBJECT_TYPE Type; + ACPI_STATUS Status; + + + ACPI_FUNCTION_ENTRY (); + + + /* + * We are only interested in NS nodes owned by the table that + * was just loaded + */ + if (Node->OwnerId != Info->OwnerId) + { + return (AE_OK); + } + + Info->ObjectCount++; + + /* And even then, we are only interested in a few object types */ + + Type = AcpiNsGetType (ObjHandle); + + switch (Type) + { + case ACPI_TYPE_REGION: + + Status = AcpiDsInitializeRegion (ObjHandle); + if (ACPI_FAILURE (Status)) + { + ACPI_EXCEPTION ((AE_INFO, Status, + "During Region initialization %p [%4.4s]", + ObjHandle, AcpiUtGetNodeName (ObjHandle))); + } + + Info->OpRegionCount++; + break; + + + case ACPI_TYPE_METHOD: + + Info->MethodCount++; + break; + + + case ACPI_TYPE_DEVICE: + + Info->DeviceCount++; + break; + + + default: + break; + } + + /* + * We ignore errors from above, and always return OK, since + * we don't want to abort the walk on a single error. + */ + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDsInitializeObjects + * + * PARAMETERS: TableDesc - Descriptor for parent ACPI table + * StartNode - Root of subtree to be initialized. + * + * RETURN: Status + * + * DESCRIPTION: Walk the namespace starting at "StartNode" and perform any + * necessary initialization on the objects found therein + * + ******************************************************************************/ + +ACPI_STATUS +AcpiDsInitializeObjects ( + UINT32 TableIndex, + ACPI_NAMESPACE_NODE *StartNode) +{ + ACPI_STATUS Status; + ACPI_INIT_WALK_INFO Info; + ACPI_TABLE_HEADER *Table; + ACPI_OWNER_ID OwnerId; + + + ACPI_FUNCTION_TRACE (DsInitializeObjects); + + + Status = AcpiTbGetOwnerId (TableIndex, &OwnerId); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "**** Starting initialization of namespace objects ****\n")); + ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "Parsing all Control Methods:")); + + /* Set all init info to zero */ + + ACPI_MEMSET (&Info, 0, sizeof (ACPI_INIT_WALK_INFO)); + + Info.OwnerId = OwnerId; + Info.TableIndex = TableIndex; + + /* Walk entire namespace from the supplied root */ + + Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* + * We don't use AcpiWalkNamespace since we do not want to acquire + * the namespace reader lock. + */ + Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, StartNode, ACPI_UINT32_MAX, + ACPI_NS_WALK_UNLOCK, AcpiDsInitOneObject, NULL, &Info, NULL); + if (ACPI_FAILURE (Status)) + { + ACPI_EXCEPTION ((AE_INFO, Status, "During WalkNamespace")); + } + (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); + + Status = AcpiGetTableByIndex (TableIndex, &Table); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, + "\nTable [%4.4s](id %4.4X) - %u Objects with %u Devices %u Methods %u Regions\n", + Table->Signature, OwnerId, Info.ObjectCount, + Info.DeviceCount, Info.MethodCount, Info.OpRegionCount)); + + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "%u Methods, %u Regions\n", Info.MethodCount, Info.OpRegionCount)); + + return_ACPI_STATUS (AE_OK); +} + + |