mirror of https://github.com/F-Stack/f-stack.git
282 lines
8.7 KiB
C
282 lines
8.7 KiB
C
|
/******************************************************************************
|
||
|
|
*
|
||
|
|
* Module Name: evxfregn - External Interfaces, ACPI Operation Regions and
|
||
|
|
* Address Spaces.
|
||
|
|
*
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Copyright (C) 2000 - 2016, 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 EXPORT_ACPI_INTERFACES
|
||
|
|
|
||
|
|
#include <contrib/dev/acpica/include/acpi.h>
|
||
|
|
#include <contrib/dev/acpica/include/accommon.h>
|
||
|
|
#include <contrib/dev/acpica/include/acnamesp.h>
|
||
|
|
#include <contrib/dev/acpica/include/acevents.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.
|
||
|
|
*
|
||
|
|
* NOTE: This function should only be called after AcpiEnableSubsystem has
|
||
|
|
* been called. This is because any _REG methods associated with the Space ID
|
||
|
|
* are executed here, and these methods can only be safely executed after
|
||
|
|
* the default handlers have been installed and the hardware has been
|
||
|
|
* initialized (via AcpiEnableSubsystem.)
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
ACPI_STATUS
|
||
|
|
AcpiInstallAddressSpaceHandler (
|
||
|
|
ACPI_HANDLE Device,
|
||
|
|
ACPI_ADR_SPACE_TYPE SpaceId,
|
||
|
|
ACPI_ADR_SPACE_HANDLER Handler,
|
||
|
|
ACPI_ADR_SPACE_SETUP Setup,
|
||
|
|
void *Context)
|
||
|
|
{
|
||
|
|
ACPI_NAMESPACE_NODE *Node;
|
||
|
|
ACPI_STATUS Status;
|
||
|
|
|
||
|
|
|
||
|
|
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 = AcpiNsValidateHandle (Device);
|
||
|
|
if (!Node)
|
||
|
|
{
|
||
|
|
Status = AE_BAD_PARAMETER;
|
||
|
|
goto UnlockAndExit;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Install the handler for all Regions for this Space ID */
|
||
|
|
|
||
|
|
Status = AcpiEvInstallSpaceHandler (
|
||
|
|
Node, SpaceId, Handler, Setup, Context);
|
||
|
|
if (ACPI_FAILURE (Status))
|
||
|
|
{
|
||
|
|
goto UnlockAndExit;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Run all _REG methods for this address space */
|
||
|
|
|
||
|
|
AcpiEvExecuteRegMethods (Node, SpaceId, ACPI_REG_CONNECT);
|
||
|
|
|
||
|
|
|
||
|
|
UnlockAndExit:
|
||
|
|
(void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
|
||
|
|
return_ACPI_STATUS (Status);
|
||
|
|
}
|
||
|
|
|
||
|
|
ACPI_EXPORT_SYMBOL (AcpiInstallAddressSpaceHandler)
|
||
|
|
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
*
|
||
|
|
* FUNCTION: AcpiRemoveAddressSpaceHandler
|
||
|
|
*
|
||
|
|
* PARAMETERS: Device - Handle for the device
|
||
|
|
* SpaceId - The address space ID
|
||
|
|
* Handler - Address of the handler
|
||
|
|
*
|
||
|
|
* RETURN: Status
|
||
|
|
*
|
||
|
|
* DESCRIPTION: Remove a previously installed handler.
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
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 = AcpiNsValidateHandle (Device);
|
||
|
|
if (!Node ||
|
||
|
|
((Node->Type != ACPI_TYPE_DEVICE) &&
|
||
|
|
(Node->Type != ACPI_TYPE_PROCESSOR) &&
|
||
|
|
(Node->Type != ACPI_TYPE_THERMAL) &&
|
||
|
|
(Node != AcpiGbl_RootNode)))
|
||
|
|
{
|
||
|
|
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->CommonNotify.Handler;
|
||
|
|
LastObjPtr = &ObjDesc->CommonNotify.Handler;
|
||
|
|
while (HandlerObj)
|
||
|
|
{
|
||
|
|
/* We have a handler, see if user requested this one */
|
||
|
|
|
||
|
|
if (HandlerObj->AddressSpace.SpaceId == SpaceId)
|
||
|
|
{
|
||
|
|
/* Handler must be the same as the installed handler */
|
||
|
|
|
||
|
|
if (HandlerObj->AddressSpace.Handler != Handler)
|
||
|
|
{
|
||
|
|
Status = AE_BAD_PARAMETER;
|
||
|
|
goto UnlockAndExit;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Matched SpaceId, 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->AddressSpace.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: Just grab the head because the
|
||
|
|
* DetachRegion removed the previous head.
|
||
|
|
*/
|
||
|
|
RegionObj = HandlerObj->AddressSpace.RegionList;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Remove this Handler object from the list */
|
||
|
|
|
||
|
|
*LastObjPtr = HandlerObj->AddressSpace.Next;
|
||
|
|
|
||
|
|
/* Now we can delete the handler object */
|
||
|
|
|
||
|
|
AcpiUtRemoveReference (HandlerObj);
|
||
|
|
goto UnlockAndExit;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Walk the linked list of handlers */
|
||
|
|
|
||
|
|
LastObjPtr = &HandlerObj->AddressSpace.Next;
|
||
|
|
HandlerObj = HandlerObj->AddressSpace.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);
|
||
|
|
}
|
||
|
|
|
||
|
|
ACPI_EXPORT_SYMBOL (AcpiRemoveAddressSpaceHandler)
|