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/** @file
UEFI Event support functions and structure.
Copyright (c) 2006 - 2008, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _EXEC_H_
#define _EXEC_H_
#define VALID_TPL(a) ((a) <= TPL_HIGH_LEVEL)
//
// EFI_EVENT
//
#define EVENT_SIGNATURE EFI_SIGNATURE_32('e','v','n','t')
typedef struct {
UINTN Signature;
UINT32 Type;
UINT32 SignalCount;
//
// Entry if the event is registered to be signalled
//
LIST_ENTRY SignalLink;
//
// Notification information for this event
//
EFI_TPL NotifyTpl;
EFI_EVENT_NOTIFY NotifyFunction;
VOID *NotifyContext;
EFI_GUID EventGroup;
LIST_ENTRY NotifyLink;
BOOLEAN ExFlag;
//
// A list of all runtime events
//
EFI_RUNTIME_EVENT_ENTRY RuntimeData;
//
// Information by event type
//
union {
//
// For timer events
//
struct {
LIST_ENTRY Link;
UINT64 TriggerTime;
UINT64 Period;
} Timer;
} u;
} IEVENT;
//
// Internal prototypes
//
/**
Dispatches all pending events.
@param Priority The task priority level of event notifications
to dispatch
**/
VOID
CoreDispatchEventNotifies (
IN EFI_TPL Priority
)
;
/**
Return the highest set bit.
@param Number The value to check
@return Bit position of the highest set bit
**/
UINTN
CoreHighestSetBit (
IN UINTN Number
)
;
/**
Disables CPU interrupts.
@retval EFI_SUCCESS If interrupts were disabled in the CPU.
@retval EFI_INVALID_PARAMETER State is NULL.
**/
BOOLEAN
GetInterruptState (
VOID
)
;
//
// Exported functions
//
/**
A function out of date, should be removed.
**/
VOID
CoreEventVirtualAddressFixup (
VOID
)
;
/**
Initializes timer support.
**/
VOID
CoreInitializeTimer (
VOID
)
;
//
// extern data declarations
//
extern EFI_LOCK gEventQueueLock;
extern UINTN gEventPending;
extern LIST_ENTRY gEventQueue[];
extern LIST_ENTRY gEventSignalQueue;
#endif
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