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23c98c94 | 1 | /** @file\r |
504214c4 LG |
2 | UEFI Event support functions and structure.\r |
3 | \r | |
23c98c94 | 4 | Copyright (c) 2006 - 2008, Intel Corporation. <BR>\r |
5 | All rights reserved. This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
28a00297 | 12 | \r |
504214c4 | 13 | **/\r |
28a00297 | 14 | \r |
5f3232d7 | 15 | #ifndef __EVENT_H__\r |
16 | #define __EVENT_H__\r | |
28a00297 | 17 | \r |
18 | #define VALID_TPL(a) ((a) <= TPL_HIGH_LEVEL)\r | |
19 | \r | |
20 | //\r | |
21 | // EFI_EVENT\r | |
22 | //\r | |
28a00297 | 23 | #define EVENT_SIGNATURE EFI_SIGNATURE_32('e','v','n','t')\r |
24 | typedef struct {\r | |
25 | UINTN Signature;\r | |
26 | UINT32 Type;\r | |
27 | UINT32 SignalCount;\r | |
28 | \r | |
29 | //\r | |
30 | // Entry if the event is registered to be signalled\r | |
31 | //\r | |
32 | \r | |
33 | LIST_ENTRY SignalLink;\r | |
34 | \r | |
35 | //\r | |
36 | // Notification information for this event\r | |
37 | //\r | |
38 | \r | |
39 | EFI_TPL NotifyTpl;\r | |
40 | EFI_EVENT_NOTIFY NotifyFunction;\r | |
41 | VOID *NotifyContext;\r | |
42 | EFI_GUID EventGroup;\r | |
022c6d45 | 43 | LIST_ENTRY NotifyLink;\r |
28a00297 | 44 | BOOLEAN ExFlag;\r |
022c6d45 | 45 | \r |
28a00297 | 46 | //\r |
47 | // A list of all runtime events\r | |
48 | //\r | |
49 | EFI_RUNTIME_EVENT_ENTRY RuntimeData;\r | |
50 | \r | |
51 | //\r | |
52 | // Information by event type\r | |
53 | //\r | |
54 | \r | |
55 | union {\r | |
56 | //\r | |
57 | // For timer events\r | |
58 | //\r | |
59 | struct {\r | |
60 | LIST_ENTRY Link;\r | |
61 | UINT64 TriggerTime;\r | |
62 | UINT64 Period;\r | |
63 | } Timer;\r | |
64 | } u;\r | |
65 | \r | |
022c6d45 | 66 | } IEVENT;\r |
28a00297 | 67 | \r |
68 | //\r | |
69 | // Internal prototypes\r | |
70 | //\r | |
71 | \r | |
162ed594 | 72 | \r |
73 | /**\r | |
74 | Dispatches all pending events.\r | |
75 | \r | |
022c6d45 | 76 | @param Priority The task priority level of event notifications\r |
162ed594 | 77 | to dispatch\r |
78 | \r | |
79 | **/\r | |
28a00297 | 80 | VOID\r |
81 | CoreDispatchEventNotifies (\r | |
82 | IN EFI_TPL Priority\r | |
23c98c94 | 83 | );\r |
28a00297 | 84 | \r |
28a00297 | 85 | \r |
28a00297 | 86 | \r |
28a00297 | 87 | //\r |
88 | // Exported functions\r | |
89 | //\r | |
162ed594 | 90 | /**\r |
91 | Initializes timer support.\r | |
28a00297 | 92 | \r |
162ed594 | 93 | **/\r |
28a00297 | 94 | VOID\r |
95 | CoreInitializeTimer (\r | |
96 | VOID\r | |
23c98c94 | 97 | );\r |
28a00297 | 98 | \r |
99 | //\r | |
100 | // extern data declarations\r | |
101 | //\r | |
102 | \r | |
103 | extern EFI_LOCK gEventQueueLock;\r | |
104 | extern UINTN gEventPending;\r | |
105 | extern LIST_ENTRY gEventQueue[];\r | |
106 | extern LIST_ENTRY gEventSignalQueue;\r | |
28a00297 | 107 | \r |
108 | #endif\r |