1 /** @file 2 UEFI Event support functions and structure. 3 4 Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR> 5 (C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR> 6 This program and the accompanying materials 7 are licensed and made available under the terms and conditions of the BSD License 8 which accompanies this distribution. The full text of the license may be found at 9 http://opensource.org/licenses/bsd-license.php 10 11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 13 14 **/ 15 16 #ifndef __EVENT_H__ 17 #define __EVENT_H__ 18 19 20 #define VALID_TPL(a) ((a) <= TPL_HIGH_LEVEL) 21 extern UINTN gEventPending; 22 23 /// 24 /// Set if Event is part of an event group 25 /// 26 #define EVT_EXFLAG_EVENT_GROUP 0x01 27 /// 28 /// Set if Event is registered on a protocol notify 29 /// 30 #define EVT_EXFLAG_EVENT_PROTOCOL_NOTIFICATION 0x02 31 32 // 33 // EFI_EVENT 34 // 35 36 /// 37 /// Timer event information 38 /// 39 typedef struct { 40 LIST_ENTRY Link; 41 UINT64 TriggerTime; 42 UINT64 Period; 43 } TIMER_EVENT_INFO; 44 45 #define EVENT_SIGNATURE SIGNATURE_32('e','v','n','t') 46 typedef struct { 47 UINTN Signature; 48 UINT32 Type; 49 UINT32 SignalCount; 50 /// 51 /// Entry if the event is registered to be signalled 52 /// 53 LIST_ENTRY SignalLink; 54 /// 55 /// Notification information for this event 56 /// 57 EFI_TPL NotifyTpl; 58 EFI_EVENT_NOTIFY NotifyFunction; 59 VOID *NotifyContext; 60 EFI_GUID EventGroup; 61 LIST_ENTRY NotifyLink; 62 UINT8 ExFlag; 63 /// 64 /// A list of all runtime events 65 /// 66 EFI_RUNTIME_EVENT_ENTRY RuntimeData; 67 TIMER_EVENT_INFO Timer; 68 } IEVENT; 69 70 // 71 // Internal prototypes 72 // 73 74 75 /** 76 Dispatches all pending events. 77 78 @param Priority The task priority level of event notifications 79 to dispatch 80 81 **/ 82 VOID 83 CoreDispatchEventNotifies ( 84 IN EFI_TPL Priority 85 ); 86 87 88 /** 89 Initializes timer support. 90 91 **/ 92 VOID 93 CoreInitializeTimer ( 94 VOID 95 ); 96 97 #endif 98
