524 lines
17 KiB
C
524 lines
17 KiB
C
/******************************************************************************
|
|
*
|
|
* Module Name: evxfregn - External Interfaces, ACPI Operation Regions and
|
|
* Address Spaces.
|
|
* $Revision: 1.3 $
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/******************************************************************************
|
|
*
|
|
* 1. Copyright Notice
|
|
*
|
|
* Some or all of this work - Copyright (c) 1999 - 2002, 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 prton 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.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: evxfregn.c,v 1.3 2002/06/15 01:47:17 thorpej Exp $");
|
|
|
|
#define __EVXFREGN_C__
|
|
|
|
#include "acpi.h"
|
|
#include "acnamesp.h"
|
|
#include "acevents.h"
|
|
#include "acinterp.h"
|
|
|
|
#define _COMPONENT ACPI_EVENTS
|
|
ACPI_MODULE_NAME ("evxfregn")
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiInstallAddressSpaceHandler
|
|
*
|
|
* PARAMETERS: Device - Handle for the device
|
|
* SpaceId - The address space ID
|
|
* Handler - Address of the handler
|
|
* Setup - Address of the setup function
|
|
* Context - Value passed to the handler on each access
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Install a handler for all OpRegions of a given SpaceId.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiInstallAddressSpaceHandler (
|
|
ACPI_HANDLE Device,
|
|
ACPI_ADR_SPACE_TYPE SpaceId,
|
|
ACPI_ADR_SPACE_HANDLER Handler,
|
|
ACPI_ADR_SPACE_SETUP Setup,
|
|
void *Context)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_OPERAND_OBJECT *HandlerObj;
|
|
ACPI_NAMESPACE_NODE *Node;
|
|
ACPI_STATUS Status;
|
|
ACPI_OBJECT_TYPE Type;
|
|
UINT16 Flags = 0;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("AcpiInstallAddressSpaceHandler");
|
|
|
|
|
|
/* Parameter validation */
|
|
|
|
if (!Device)
|
|
{
|
|
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
|
}
|
|
|
|
Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Convert and validate the device handle */
|
|
|
|
Node = AcpiNsMapHandleToNode (Device);
|
|
if (!Node)
|
|
{
|
|
Status = AE_BAD_PARAMETER;
|
|
goto UnlockAndExit;
|
|
}
|
|
|
|
/*
|
|
* This registration is valid for only the types below
|
|
* and the root. This is where the default handlers
|
|
* get placed.
|
|
*/
|
|
if ((Node->Type != ACPI_TYPE_DEVICE) &&
|
|
(Node->Type != ACPI_TYPE_PROCESSOR) &&
|
|
(Node->Type != ACPI_TYPE_THERMAL) &&
|
|
(Node != AcpiGbl_RootNode))
|
|
{
|
|
Status = AE_BAD_PARAMETER;
|
|
goto UnlockAndExit;
|
|
}
|
|
|
|
if (Handler == ACPI_DEFAULT_HANDLER)
|
|
{
|
|
Flags = ACPI_ADDR_HANDLER_DEFAULT_INSTALLED;
|
|
|
|
switch (SpaceId)
|
|
{
|
|
case ACPI_ADR_SPACE_SYSTEM_MEMORY:
|
|
Handler = AcpiExSystemMemorySpaceHandler;
|
|
Setup = AcpiEvSystemMemoryRegionSetup;
|
|
break;
|
|
|
|
case ACPI_ADR_SPACE_SYSTEM_IO:
|
|
Handler = AcpiExSystemIoSpaceHandler;
|
|
Setup = AcpiEvIoSpaceRegionSetup;
|
|
break;
|
|
|
|
case ACPI_ADR_SPACE_PCI_CONFIG:
|
|
Handler = AcpiExPciConfigSpaceHandler;
|
|
Setup = AcpiEvPciConfigRegionSetup;
|
|
break;
|
|
|
|
case ACPI_ADR_SPACE_CMOS:
|
|
Handler = AcpiExCmosSpaceHandler;
|
|
Setup = AcpiEvCmosRegionSetup;
|
|
break;
|
|
|
|
case ACPI_ADR_SPACE_PCI_BAR_TARGET:
|
|
Handler = AcpiExPciBarSpaceHandler;
|
|
Setup = AcpiEvPciBarRegionSetup;
|
|
break;
|
|
|
|
case ACPI_ADR_SPACE_DATA_TABLE:
|
|
Handler = AcpiExDataTableSpaceHandler;
|
|
Setup = NULL;
|
|
break;
|
|
|
|
default:
|
|
Status = AE_NOT_EXIST;
|
|
goto UnlockAndExit;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If the caller hasn't specified a setup routine, use the default
|
|
*/
|
|
if (!Setup)
|
|
{
|
|
Setup = AcpiEvDefaultRegionSetup;
|
|
}
|
|
|
|
/*
|
|
* Check for an existing internal object
|
|
*/
|
|
ObjDesc = AcpiNsGetAttachedObject (Node);
|
|
if (ObjDesc)
|
|
{
|
|
/*
|
|
* The object exists.
|
|
* Make sure the handler is not already installed.
|
|
*/
|
|
|
|
/* check the address handler the user requested */
|
|
|
|
HandlerObj = ObjDesc->Device.AddrHandler;
|
|
while (HandlerObj)
|
|
{
|
|
/*
|
|
* We have an Address handler, see if user requested this
|
|
* address space.
|
|
*/
|
|
if(HandlerObj->AddrHandler.SpaceId == SpaceId)
|
|
{
|
|
Status = AE_ALREADY_EXISTS;
|
|
goto UnlockAndExit;
|
|
}
|
|
|
|
/*
|
|
* Move through the linked list of handlers
|
|
*/
|
|
HandlerObj = HandlerObj->AddrHandler.Next;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
|
|
"Creating object on Device %p while installing handler\n", Node));
|
|
|
|
/* ObjDesc does not exist, create one */
|
|
|
|
if (Node->Type == ACPI_TYPE_ANY)
|
|
{
|
|
Type = ACPI_TYPE_DEVICE;
|
|
}
|
|
else
|
|
{
|
|
Type = Node->Type;
|
|
}
|
|
|
|
ObjDesc = AcpiUtCreateInternalObject (Type);
|
|
if (!ObjDesc)
|
|
{
|
|
Status = AE_NO_MEMORY;
|
|
goto UnlockAndExit;
|
|
}
|
|
|
|
/* Init new descriptor */
|
|
|
|
ObjDesc->Common.Type = (UINT8) Type;
|
|
|
|
/* Attach the new object to the Node */
|
|
|
|
Status = AcpiNsAttachObject (Node, ObjDesc, Type);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
goto UnlockAndExit;
|
|
}
|
|
}
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
|
|
"Installing address handler for region %s(%X) on Device %p(%p)\n",
|
|
AcpiUtGetRegionName (SpaceId), SpaceId, Node, ObjDesc));
|
|
|
|
/*
|
|
* Now we can install the handler
|
|
*
|
|
* At this point we know that there is no existing handler.
|
|
* So, we just allocate the object for the handler and link it
|
|
* into the list.
|
|
*/
|
|
HandlerObj = AcpiUtCreateInternalObject (INTERNAL_TYPE_ADDRESS_HANDLER);
|
|
if (!HandlerObj)
|
|
{
|
|
Status = AE_NO_MEMORY;
|
|
goto UnlockAndExit;
|
|
}
|
|
|
|
HandlerObj->AddrHandler.SpaceId = (UINT8) SpaceId;
|
|
HandlerObj->AddrHandler.Hflags = Flags;
|
|
HandlerObj->AddrHandler.Next = ObjDesc->Device.AddrHandler;
|
|
HandlerObj->AddrHandler.RegionList = NULL;
|
|
HandlerObj->AddrHandler.Node = Node;
|
|
HandlerObj->AddrHandler.Handler = Handler;
|
|
HandlerObj->AddrHandler.Context = Context;
|
|
HandlerObj->AddrHandler.Setup = Setup;
|
|
|
|
/*
|
|
* Now walk the namespace finding all of the regions this
|
|
* handler will manage.
|
|
*
|
|
* We start at the device and search the branch toward
|
|
* the leaf nodes until either the leaf is encountered or
|
|
* a device is detected that has an address handler of the
|
|
* same type.
|
|
*
|
|
* In either case we back up and search down the remainder
|
|
* of the branch
|
|
*/
|
|
Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, Device,
|
|
ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK,
|
|
AcpiEvAddrHandlerHelper,
|
|
HandlerObj, NULL);
|
|
|
|
/*
|
|
* Place this handler 1st on the list
|
|
*/
|
|
HandlerObj->Common.ReferenceCount =
|
|
(UINT16) (HandlerObj->Common.ReferenceCount +
|
|
ObjDesc->Common.ReferenceCount - 1);
|
|
ObjDesc->Device.AddrHandler = HandlerObj;
|
|
|
|
|
|
UnlockAndExit:
|
|
(void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRemoveAddressSpaceHandler
|
|
*
|
|
* PARAMETERS: SpaceId - The address space ID
|
|
* Handler - Address of the handler
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Install a handler for accesses on an Operation Region
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRemoveAddressSpaceHandler (
|
|
ACPI_HANDLE Device,
|
|
ACPI_ADR_SPACE_TYPE SpaceId,
|
|
ACPI_ADR_SPACE_HANDLER Handler)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_OPERAND_OBJECT *HandlerObj;
|
|
ACPI_OPERAND_OBJECT *RegionObj;
|
|
ACPI_OPERAND_OBJECT **LastObjPtr;
|
|
ACPI_NAMESPACE_NODE *Node;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("AcpiRemoveAddressSpaceHandler");
|
|
|
|
|
|
/* Parameter validation */
|
|
|
|
if (!Device)
|
|
{
|
|
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
|
}
|
|
|
|
Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Convert and validate the device handle */
|
|
|
|
Node = AcpiNsMapHandleToNode (Device);
|
|
if (!Node)
|
|
{
|
|
Status = AE_BAD_PARAMETER;
|
|
goto UnlockAndExit;
|
|
}
|
|
|
|
/* Make sure the internal object exists */
|
|
|
|
ObjDesc = AcpiNsGetAttachedObject (Node);
|
|
if (!ObjDesc)
|
|
{
|
|
Status = AE_NOT_EXIST;
|
|
goto UnlockAndExit;
|
|
}
|
|
|
|
/*
|
|
* find the address handler the user requested
|
|
*/
|
|
HandlerObj = ObjDesc->Device.AddrHandler;
|
|
LastObjPtr = &ObjDesc->Device.AddrHandler;
|
|
while (HandlerObj)
|
|
{
|
|
/*
|
|
* We have a handler, see if user requested this one
|
|
*/
|
|
if (HandlerObj->AddrHandler.SpaceId == SpaceId)
|
|
{
|
|
/*
|
|
* Got it, first dereference this in the Regions
|
|
*/
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
|
|
"Removing address handler %p(%p) for region %s on Device %p(%p)\n",
|
|
HandlerObj, Handler, AcpiUtGetRegionName (SpaceId),
|
|
Node, ObjDesc));
|
|
|
|
RegionObj = HandlerObj->AddrHandler.RegionList;
|
|
|
|
/* Walk the handler's region list */
|
|
|
|
while (RegionObj)
|
|
{
|
|
/*
|
|
* First disassociate the handler from the region.
|
|
*
|
|
* NOTE: this doesn't mean that the region goes away
|
|
* The region is just inaccessible as indicated to
|
|
* the _REG method
|
|
*/
|
|
AcpiEvDetachRegion (RegionObj, TRUE);
|
|
|
|
/*
|
|
* Walk the list, since we took the first region and it
|
|
* was removed from the list by the dissassociate call
|
|
* we just get the first item on the list again
|
|
*/
|
|
RegionObj = HandlerObj->AddrHandler.RegionList;
|
|
|
|
}
|
|
|
|
/*
|
|
* Remove this Handler object from the list
|
|
*/
|
|
*LastObjPtr = HandlerObj->AddrHandler.Next;
|
|
|
|
/*
|
|
* Now we can delete the handler object
|
|
*/
|
|
AcpiUtRemoveReference (HandlerObj);
|
|
AcpiUtRemoveReference (HandlerObj);
|
|
|
|
goto UnlockAndExit;
|
|
}
|
|
|
|
/*
|
|
* Move through the linked list of handlers
|
|
*/
|
|
LastObjPtr = &HandlerObj->AddrHandler.Next;
|
|
HandlerObj = HandlerObj->AddrHandler.Next;
|
|
}
|
|
|
|
|
|
/*
|
|
* The handler does not exist
|
|
*/
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
|
|
"Unable to remove address handler %p for %s(%X), DevNode %p, obj %p\n",
|
|
Handler, AcpiUtGetRegionName (SpaceId), SpaceId, Node, ObjDesc));
|
|
|
|
Status = AE_NOT_EXIST;
|
|
|
|
|
|
UnlockAndExit:
|
|
(void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|