/******************************************************************************
*
* Module Name: evmisc - Miscellaneous event manager support functions
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2017, 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.
*
*****************************************************************************
*
* Alternatively, you may choose to be licensed under the terms of the
* following license:
*
* 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.
*
* 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 MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* 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 DAMAGE.
*
* Alternatively, you may choose to be licensed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
*****************************************************************************/
#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, ACPI_TYPE_ANY), 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);
Status = AcpiEvRemoveGlobalLockHandler ();
if (ACPI_FAILURE(Status))
{
ACPI_ERROR ((AE_INFO,
"Could not remove Global Lock handler"));
}
AcpiGbl_EventsInitialized = FALSE;
}
/* Remove SCI handlers */
Status = AcpiEvRemoveAllSciHandlers ();
if (ACPI_FAILURE(Status))
{
ACPI_ERROR ((AE_INFO,
"Could not remove SCI handler"));
}
/* 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 */