332 lines
9.3 KiB
C
332 lines
9.3 KiB
C
/******************************************************************************
|
|
*
|
|
* Module Name: evmisc - Miscellaneous event manager support functions
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/*
|
|
* Copyright (C) 2000 - 2013, 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.
|
|
*/
|
|
|
|
#include <contrib/dev/acpica/include/acpi.h>
|
|
#include <contrib/dev/acpica/include/accommon.h>
|
|
#include <contrib/dev/acpica/include/acevents.h>
|
|
#include <contrib/dev/acpica/include/acnamesp.h>
|
|
|
|
#define _COMPONENT ACPI_EVENTS
|
|
ACPI_MODULE_NAME ("evmisc")
|
|
|
|
|
|
/* Local prototypes */
|
|
|
|
static void ACPI_SYSTEM_XFACE
|
|
AcpiEvNotifyDispatch (
|
|
void *Context);
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiEvIsNotifyObject
|
|
*
|
|
* PARAMETERS: Node - Node to check
|
|
*
|
|
* RETURN: TRUE if notifies allowed on this object
|
|
*
|
|
* DESCRIPTION: Check type of node for a object that supports notifies.
|
|
*
|
|
* TBD: This could be replaced by a flag bit in the node.
|
|
*
|
|
******************************************************************************/
|
|
|
|
BOOLEAN
|
|
AcpiEvIsNotifyObject (
|
|
ACPI_NAMESPACE_NODE *Node)
|
|
{
|
|
switch (Node->Type)
|
|
{
|
|
case ACPI_TYPE_DEVICE:
|
|
case ACPI_TYPE_PROCESSOR:
|
|
case ACPI_TYPE_THERMAL:
|
|
/*
|
|
* These are the ONLY objects that can receive ACPI notifications
|
|
*/
|
|
return (TRUE);
|
|
|
|
default:
|
|
|
|
return (FALSE);
|
|
}
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiEvQueueNotifyRequest
|
|
*
|
|
* PARAMETERS: Node - NS node for the notified object
|
|
* NotifyValue - Value from the Notify() request
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Dispatch a device notification event to a previously
|
|
* installed handler.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiEvQueueNotifyRequest (
|
|
ACPI_NAMESPACE_NODE *Node,
|
|
UINT32 NotifyValue)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_OPERAND_OBJECT *HandlerListHead = NULL;
|
|
ACPI_GENERIC_STATE *Info;
|
|
UINT8 HandlerListId = 0;
|
|
ACPI_STATUS Status = AE_OK;
|
|
|
|
|
|
ACPI_FUNCTION_NAME (EvQueueNotifyRequest);
|
|
|
|
|
|
/* Are Notifies allowed on this object? */
|
|
|
|
if (!AcpiEvIsNotifyObject (Node))
|
|
{
|
|
return (AE_TYPE);
|
|
}
|
|
|
|
/* Get the correct notify list type (System or Device) */
|
|
|
|
if (NotifyValue <= ACPI_MAX_SYS_NOTIFY)
|
|
{
|
|
HandlerListId = ACPI_SYSTEM_HANDLER_LIST;
|
|
}
|
|
else
|
|
{
|
|
HandlerListId = ACPI_DEVICE_HANDLER_LIST;
|
|
}
|
|
|
|
/* Get the notify object attached to the namespace Node */
|
|
|
|
ObjDesc = AcpiNsGetAttachedObject (Node);
|
|
if (ObjDesc)
|
|
{
|
|
/* We have an attached object, Get the correct handler list */
|
|
|
|
HandlerListHead = ObjDesc->CommonNotify.NotifyList[HandlerListId];
|
|
}
|
|
|
|
/*
|
|
* If there is no notify handler (Global or Local)
|
|
* for this object, just ignore the notify
|
|
*/
|
|
if (!AcpiGbl_GlobalNotify[HandlerListId].Handler && !HandlerListHead)
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
|
|
"No notify handler for Notify, ignoring (%4.4s, %X) node %p\n",
|
|
AcpiUtGetNodeName (Node), NotifyValue, Node));
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
/* Setup notify info and schedule the notify dispatcher */
|
|
|
|
Info = AcpiUtCreateGenericState ();
|
|
if (!Info)
|
|
{
|
|
return (AE_NO_MEMORY);
|
|
}
|
|
|
|
Info->Common.DescriptorType = ACPI_DESC_TYPE_STATE_NOTIFY;
|
|
|
|
Info->Notify.Node = Node;
|
|
Info->Notify.Value = (UINT16) NotifyValue;
|
|
Info->Notify.HandlerListId = HandlerListId;
|
|
Info->Notify.HandlerListHead = HandlerListHead;
|
|
Info->Notify.Global = &AcpiGbl_GlobalNotify[HandlerListId];
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
|
|
"Dispatching Notify on [%4.4s] (%s) Value 0x%2.2X (%s) Node %p\n",
|
|
AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Node->Type),
|
|
NotifyValue, AcpiUtGetNotifyName (NotifyValue), Node));
|
|
|
|
Status = AcpiOsExecute (OSL_NOTIFY_HANDLER, AcpiEvNotifyDispatch,
|
|
Info);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
AcpiUtDeleteGenericState (Info);
|
|
}
|
|
|
|
return (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiEvNotifyDispatch
|
|
*
|
|
* PARAMETERS: Context - To be passed to the notify handler
|
|
*
|
|
* RETURN: None.
|
|
*
|
|
* DESCRIPTION: Dispatch a device notification event to a previously
|
|
* installed handler.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static void ACPI_SYSTEM_XFACE
|
|
AcpiEvNotifyDispatch (
|
|
void *Context)
|
|
{
|
|
ACPI_GENERIC_STATE *Info = (ACPI_GENERIC_STATE *) Context;
|
|
ACPI_OPERAND_OBJECT *HandlerObj;
|
|
|
|
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
/* Invoke a global notify handler if installed */
|
|
|
|
if (Info->Notify.Global->Handler)
|
|
{
|
|
Info->Notify.Global->Handler (Info->Notify.Node,
|
|
Info->Notify.Value,
|
|
Info->Notify.Global->Context);
|
|
}
|
|
|
|
/* Now invoke the local notify handler(s) if any are installed */
|
|
|
|
HandlerObj = Info->Notify.HandlerListHead;
|
|
while (HandlerObj)
|
|
{
|
|
HandlerObj->Notify.Handler (Info->Notify.Node,
|
|
Info->Notify.Value,
|
|
HandlerObj->Notify.Context);
|
|
|
|
HandlerObj = HandlerObj->Notify.Next[Info->Notify.HandlerListId];
|
|
}
|
|
|
|
/* All done with the info object */
|
|
|
|
AcpiUtDeleteGenericState (Info);
|
|
}
|
|
|
|
|
|
#if (!ACPI_REDUCED_HARDWARE)
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiEvTerminate
|
|
*
|
|
* PARAMETERS: none
|
|
*
|
|
* RETURN: none
|
|
*
|
|
* DESCRIPTION: Disable events and free memory allocated for table storage.
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiEvTerminate (
|
|
void)
|
|
{
|
|
UINT32 i;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (EvTerminate);
|
|
|
|
|
|
if (AcpiGbl_EventsInitialized)
|
|
{
|
|
/*
|
|
* Disable all event-related functionality. In all cases, on error,
|
|
* print a message but obviously we don't abort.
|
|
*/
|
|
|
|
/* Disable all fixed events */
|
|
|
|
for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++)
|
|
{
|
|
Status = AcpiDisableEvent (i, 0);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
ACPI_ERROR ((AE_INFO,
|
|
"Could not disable fixed event %u", (UINT32) i));
|
|
}
|
|
}
|
|
|
|
/* Disable all GPEs in all GPE blocks */
|
|
|
|
Status = AcpiEvWalkGpeList (AcpiHwDisableGpeBlock, NULL);
|
|
|
|
/* Remove SCI handler */
|
|
|
|
Status = AcpiEvRemoveSciHandler ();
|
|
if (ACPI_FAILURE(Status))
|
|
{
|
|
ACPI_ERROR ((AE_INFO,
|
|
"Could not remove SCI handler"));
|
|
}
|
|
|
|
Status = AcpiEvRemoveGlobalLockHandler ();
|
|
if (ACPI_FAILURE(Status))
|
|
{
|
|
ACPI_ERROR ((AE_INFO,
|
|
"Could not remove Global Lock handler"));
|
|
}
|
|
|
|
AcpiGbl_EventsInitialized = FALSE;
|
|
}
|
|
|
|
/* Deallocate all handler objects installed within GPE info structs */
|
|
|
|
Status = AcpiEvWalkGpeList (AcpiEvDeleteGpeHandlers, NULL);
|
|
|
|
/* Return to original mode if necessary */
|
|
|
|
if (AcpiGbl_OriginalMode == ACPI_SYS_MODE_LEGACY)
|
|
{
|
|
Status = AcpiDisable ();
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
ACPI_WARNING ((AE_INFO, "AcpiDisable failed"));
|
|
}
|
|
}
|
|
return_VOID;
|
|
}
|
|
|
|
#endif /* !ACPI_REDUCED_HARDWARE */
|