022c6d45ef
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5560 6f19259b-4bc3-4df7-8a09-765794883524
152 lines
2.7 KiB
C
152 lines
2.7 KiB
C
/** @file
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UEFI Event support functions and structure.
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Copyright (c) 2006 - 2008, Intel Corporation. <BR>
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _EXEC_H_
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#define _EXEC_H_
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#define VALID_TPL(a) ((a) <= TPL_HIGH_LEVEL)
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//
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// EFI_EVENT
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//
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#define EVENT_SIGNATURE EFI_SIGNATURE_32('e','v','n','t')
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typedef struct {
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UINTN Signature;
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UINT32 Type;
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UINT32 SignalCount;
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//
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// Entry if the event is registered to be signalled
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//
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LIST_ENTRY SignalLink;
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//
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// Notification information for this event
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//
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EFI_TPL NotifyTpl;
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EFI_EVENT_NOTIFY NotifyFunction;
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VOID *NotifyContext;
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EFI_GUID EventGroup;
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LIST_ENTRY NotifyLink;
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BOOLEAN ExFlag;
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//
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// A list of all runtime events
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//
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EFI_RUNTIME_EVENT_ENTRY RuntimeData;
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//
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// Information by event type
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//
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union {
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//
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// For timer events
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//
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struct {
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LIST_ENTRY Link;
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UINT64 TriggerTime;
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UINT64 Period;
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} Timer;
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} u;
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} IEVENT;
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//
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// Internal prototypes
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//
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/**
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Dispatches all pending events.
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@param Priority The task priority level of event notifications
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to dispatch
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**/
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VOID
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CoreDispatchEventNotifies (
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IN EFI_TPL Priority
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);
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/**
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Return the highest set bit.
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@param Number The value to check
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@return Bit position of the highest set bit
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**/
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UINTN
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CoreHighestSetBit (
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IN UINTN Number
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);
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/**
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Disables CPU interrupts.
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@retval EFI_SUCCESS If interrupts were disabled in the CPU.
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@retval EFI_INVALID_PARAMETER State is NULL.
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**/
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BOOLEAN
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GetInterruptState (
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VOID
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);
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//
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// Exported functions
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//
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/**
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A function out of date, should be removed.
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**/
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VOID
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CoreEventVirtualAddressFixup (
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VOID
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);
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/**
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Initializes timer support.
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**/
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VOID
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CoreInitializeTimer (
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VOID
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);
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//
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// extern data declarations
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//
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extern EFI_LOCK gEventQueueLock;
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extern UINTN gEventPending;
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extern LIST_ENTRY gEventQueue[];
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extern LIST_ENTRY gEventSignalQueue;
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#endif
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