2 This code supports a the private implementation
3 of the Data Hub protocol
5 Copyright (c) 2006, Intel Corporation
6 All rights reserved. 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
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.
22 #include <Protocol/DataHub.h>
24 #include <Library/DebugLib.h>
25 #include <Library/UefiDriverEntryPoint.h>
26 #include <Library/UefiLib.h>
27 #include <Library/BaseLib.h>
28 #include <Library/BaseMemoryLib.h>
29 #include <Library/MemoryAllocationLib.h>
30 #include <Library/UefiBootServicesTableLib.h>
31 #include <Library/UefiRuntimeServicesTableLib.h>
33 #define DATA_HUB_INSTANCE_SIGNATURE SIGNATURE_32 ('D', 'H', 'u', 'b')
40 // Produced protocol(s)
42 EFI_DATA_HUB_PROTOCOL DataHub
;
48 // Updates to GlobalMonotonicCount, LogListHead, and FilterDriverListHead
54 // Runing Monotonic Count to use for each error record.
55 // Increment AFTER use in an error record.
57 UINT64 GlobalMonotonicCount
;
60 // List of EFI_DATA_ENTRY structures. This is the data log! The list
61 // must be in assending order of LogMonotonicCount.
63 LIST_ENTRY DataListHead
;
66 // List of EFI_DATA_HUB_FILTER_DRIVER structures. Represents all
67 // the registered filter drivers.
69 LIST_ENTRY FilterDriverListHead
;
73 #define DATA_HUB_INSTANCE_FROM_THIS(this) CR (this, DATA_HUB_INSTANCE, DataHub, DATA_HUB_INSTANCE_SIGNATURE)
76 // Private data structure to contain the data log. One record per
77 // structure. Head pointer to the list is the Log member of
78 // EFI_DATA_ENTRY. Record is a copy of the data passed in.
80 #define EFI_DATA_ENTRY_SIGNATURE SIGNATURE_32 ('D', 'r', 'e', 'c')
85 EFI_DATA_RECORD_HEADER
*Record
;
91 #define DATA_ENTRY_FROM_LINK(link) CR (link, EFI_DATA_ENTRY, Link, EFI_DATA_ENTRY_SIGNATURE)
94 // Private data to contain the filter driver Event and it's
95 // associated EFI_TPL.
97 #define EFI_DATA_HUB_FILTER_DRIVER_SIGNATURE SIGNATURE_32 ('D', 'h', 'F', 'd')
104 // Store Filter Driver Event and Tpl level it can be Signaled at.
110 // Monotonic count on the get next operation for Event.
111 // Zero indicates get next has not been called for this event yet.
113 UINT64 GetNextMonotonicCount
;
116 // Filter driver will register what class filter should be used.
121 // Filter driver will register what record guid filter should be used.
123 EFI_GUID FilterDataRecordGuid
;
125 } DATA_HUB_FILTER_DRIVER
;
127 #define FILTER_ENTRY_FROM_LINK(link) CR (link, DATA_HUB_FILTER_DRIVER, Link, EFI_DATA_HUB_FILTER_DRIVER_SIGNATURE)