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79964ac8 | 1 | /** @file\r |
2 | The data hub protocol is used both by agents wishing to log\r | |
3 | data and those wishing to be made aware of all information that\r | |
4 | has been logged.\r | |
5 | \r | |
79964ac8 | 6 | This protocol is defined in Framework for EFI Data Hub Specification.\r |
7 | Version 0.9.\r | |
8 | \r | |
736e104f | 9 | Copyright (c) 2007 - 2009, Intel Corporation\r |
10 | All rights reserved. This program and the accompanying materials\r | |
11 | are licensed and made available under the terms and conditions of the BSD License\r | |
12 | which accompanies this distribution. The full text of the license may be found at\r | |
13 | http://opensource.org/licenses/bsd-license.php\r | |
14 | \r | |
15 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
16 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
17 | \r | |
79964ac8 | 18 | **/\r |
19 | \r | |
d2be628f | 20 | #ifndef __DATA_HUB_H__\r |
21 | #define __DATA_HUB_H__\r | |
79964ac8 | 22 | \r |
b80fbe85 | 23 | #include <PiDxe.h>\r |
24 | \r | |
79964ac8 | 25 | #define EFI_DATA_HUB_PROTOCOL_GUID \\r |
26 | { \\r | |
27 | 0xae80d021, 0x618e, 0x11d4, {0xbc, 0xd7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81 } \\r | |
28 | }\r | |
29 | \r | |
30 | //\r | |
31 | // EFI generic Data Hub Header\r | |
32 | //\r | |
33 | // A Data Record is an EFI_DATA_RECORD_HEADER followed by RecordSize bytes of\r | |
34 | // data. The format of the data is defined by the DataRecordGuid.\r | |
35 | //\r | |
36 | // If EFI_DATA_RECORD_HEADER is extended in the future the Version number must\r | |
37 | // change and the HeaderSize will change if the definition of\r | |
38 | // EFI_DATA_RECORD_HEADER is extended.\r | |
39 | //\r | |
40 | // The logger is responcible for initializing:\r | |
41 | // Version, HeaderSize, RecordSize, DataRecordGuid, DataRecordClass\r | |
42 | //\r | |
43 | // The Data Hub driver is responcible for initializing:\r | |
44 | // LogTime and LogMonotonicCount.\r | |
45 | //\r | |
46 | #define EFI_DATA_RECORD_HEADER_VERSION 0x0100\r | |
47 | typedef struct {\r | |
48 | UINT16 Version;\r | |
49 | UINT16 HeaderSize;\r | |
50 | UINT32 RecordSize;\r | |
51 | EFI_GUID DataRecordGuid;\r | |
52 | EFI_GUID ProducerName;\r | |
53 | UINT64 DataRecordClass;\r | |
54 | EFI_TIME LogTime;\r | |
55 | UINT64 LogMonotonicCount;\r | |
56 | } EFI_DATA_RECORD_HEADER;\r | |
57 | \r | |
58 | //\r | |
59 | // Definition of DataRecordClass. These are used to filter out class types\r | |
60 | // at a very high level. The DataRecordGuid still defines the format of\r | |
61 | // the data. See DateHub.doc for rules on what can and can not be a\r | |
62 | // new DataRecordClass\r | |
63 | //\r | |
64 | #define EFI_DATA_RECORD_CLASS_DEBUG 0x0000000000000001\r | |
65 | #define EFI_DATA_RECORD_CLASS_ERROR 0x0000000000000002\r | |
66 | #define EFI_DATA_RECORD_CLASS_DATA 0x0000000000000004\r | |
67 | #define EFI_DATA_RECORD_CLASS_PROGRESS_CODE 0x0000000000000008\r | |
68 | \r | |
69 | //\r | |
70 | // Forward reference for pure ANSI compatability\r | |
71 | //\r | |
72 | typedef struct _EFI_DATA_HUB_PROTOCOL EFI_DATA_HUB_PROTOCOL;\r | |
73 | \r | |
74 | /**\r | |
75 | Logs a data record to the system event log.\r | |
76 | \r | |
77 | @param This The EFI_DATA_HUB_PROTOCOL instance.\r | |
79964ac8 | 78 | @param DataRecordGuid A GUID that indicates the format of the data passed into RawData.\r |
79 | @param ProducerName A GUID that indicates the identity of the caller to this API.\r | |
80 | @param DataRecordClass This class indicates the generic type of the data record.\r | |
81 | @param RawData The DataRecordGuid-defined data to be logged.\r | |
82 | @param RawDataSize The size in bytes of RawData.\r | |
83 | \r | |
84 | @retval EFI_SUCCESS Data was logged.\r | |
85 | @retval EFI_OUT_OF_RESOURCES Data was not logged due to lack of system resources.\r | |
86 | \r | |
87 | **/\r | |
88 | typedef\r | |
89 | EFI_STATUS\r | |
69686d56 | 90 | (EFIAPI *EFI_DATA_HUB_LOG_DATA)(\r |
79964ac8 | 91 | IN EFI_DATA_HUB_PROTOCOL *This,\r |
92 | IN EFI_GUID *DataRecordGuid,\r | |
93 | IN EFI_GUID *ProducerName,\r | |
94 | IN UINT64 DataRecordClass,\r | |
95 | IN VOID *RawData,\r | |
96 | IN UINT32 RawDataSize\r | |
97 | );\r | |
98 | \r | |
99 | /**\r | |
100 | Allows the system data log to be searched.\r | |
101 | \r | |
102 | @param This The EFI_DATA_HUB_PROTOCOL instance.\r | |
103 | @param MonotonicCount On input, it specifies the Record to return.\r | |
104 | An input of zero means to return the first record.\r | |
105 | @param FilterDriver If FilterDriver is not passed in a MonotonicCount of zero,\r | |
106 | it means to return the first data record. If FilterDriver is passed in,\r | |
107 | then a MonotonicCount of zero means to return the first data not yet read\r | |
108 | by FilterDriver.\r | |
109 | @param Record Returns a dynamically allocated memory buffer with a data\r | |
110 | record that matches MonotonicCount.\r | |
111 | \r | |
112 | @retval EFI_SUCCESS Data was returned in Record.\r | |
113 | @retval EFI_INVALID_PARAMETER FilterDriver was passed in but does not exist.\r | |
114 | @retval EFI_NOT_FOUND MonotonicCount does not match any data record\r | |
115 | in the system. If a MonotonicCount of zero was passed in, then no\r | |
116 | data records exist in the system.\r | |
117 | @retval EFI_OUT_OF_RESOURCES Record was not returned due to lack\r | |
118 | of system resources.\r | |
119 | \r | |
120 | **/\r | |
121 | typedef\r | |
122 | EFI_STATUS\r | |
69686d56 | 123 | (EFIAPI *EFI_DATA_HUB_GET_NEXT_RECORD)(\r |
79964ac8 | 124 | IN EFI_DATA_HUB_PROTOCOL *This,\r |
125 | IN OUT UINT64 *MonotonicCount,\r | |
126 | IN EFI_EVENT *FilterDriver OPTIONAL,\r | |
127 | OUT EFI_DATA_RECORD_HEADER **Record\r | |
128 | );\r | |
129 | \r | |
130 | /**\r | |
131 | Registers an event to be signaled every time a data record is logged in the system.\r | |
132 | \r | |
133 | @param This The EFI_DATA_HUB_PROTOCOL instance.\r | |
134 | @param FilterEvent The EFI_EVENT to signal whenever data that matches\r | |
135 | FilterClass is logged in the system.\r | |
136 | @param FilterTpl The maximum EFI_TPL at which FilterEvent can be signaled.\r | |
137 | It is strongly recommended that you use the lowest EFI_TPL possible.\r | |
138 | @param FilterClass FilterEvent will be signaled whenever a bit\r | |
139 | in EFI_DATA_RECORD_HEADER.DataRecordClass is also set in FilterClass.\r | |
140 | If FilterClass is zero, no class-based filtering will be performed.\r | |
141 | @param FilterDataRecordGuid FilterEvent will be signaled whenever\r | |
142 | FilterDataRecordGuid matches EFI_DATA_RECORD_HEADER.DataRecordGuid.\r | |
143 | If FilterDataRecordGuid is NULL, then no GUID-based filtering will be performed.\r | |
144 | \r | |
145 | @retval EFI_SUCCESS The filter driver event was registered\r | |
146 | @retval EFI_ALREADY_STARTED FilterEvent was previously registered and cannot be registered again.\r | |
147 | @retval EFI_OUT_OF_RESOURCES The filter driver event was not registered\r | |
148 | due to lack of system resources.\r | |
149 | \r | |
150 | **/\r | |
151 | typedef\r | |
152 | EFI_STATUS\r | |
69686d56 | 153 | (EFIAPI *EFI_DATA_HUB_REGISTER_FILTER_DRIVER)(\r |
79964ac8 | 154 | IN EFI_DATA_HUB_PROTOCOL *This,\r |
155 | IN EFI_EVENT FilterEvent,\r | |
156 | IN EFI_TPL FilterTpl,\r | |
157 | IN UINT64 FilterClass,\r | |
158 | IN EFI_GUID *FilterDataRecordGuid OPTIONAL\r | |
159 | );\r | |
160 | \r | |
161 | /**\r | |
162 | Stops a filter driver from being notified when data records are logged.\r | |
163 | \r | |
164 | @param This The EFI_DATA_HUB_PROTOCOL instance.\r | |
165 | @param FilterEvent The EFI_EVENT to remove from the list of events to be\r | |
166 | signaled every time errors are logged.\r | |
167 | \r | |
168 | @retval EFI_SUCCESS The filter driver represented by FilterEvent was shut off.\r | |
169 | @retval EFI_NOT_FOUND FilterEvent did not exist.\r | |
170 | \r | |
171 | **/\r | |
172 | typedef\r | |
173 | EFI_STATUS\r | |
69686d56 | 174 | (EFIAPI *EFI_DATA_HUB_UNREGISTER_FILTER_DRIVER)(\r |
79964ac8 | 175 | IN EFI_DATA_HUB_PROTOCOL *This,\r |
176 | IN EFI_EVENT FilterEvent\r | |
177 | );\r | |
178 | \r | |
179 | /**\r | |
79964ac8 | 180 | This protocol is used to log information and register filter drivers\r |
181 | to receive data records.\r | |
79964ac8 | 182 | **/\r |
183 | struct _EFI_DATA_HUB_PROTOCOL {\r | |
4e97801c | 184 | ///\r |
185 | /// Logs a data record.\r | |
186 | ///\r | |
187 | EFI_DATA_HUB_LOG_DATA LogData; \r | |
188 | \r | |
189 | ///\r | |
190 | /// Gets a data record. Used both to view the memory-based log and to\r | |
191 | /// get information about which data records have been consumed by a filter driver.\r | |
192 | ///\r | |
79964ac8 | 193 | EFI_DATA_HUB_GET_NEXT_RECORD GetNextRecord;\r |
4e97801c | 194 | \r |
195 | ///\r | |
196 | /// Allows the registration of an EFI event to act as a filter driver for all data records that are logged.\r | |
197 | ///\r | |
79964ac8 | 198 | EFI_DATA_HUB_REGISTER_FILTER_DRIVER RegisterFilterDriver;\r |
4e97801c | 199 | \r |
200 | ///\r | |
201 | /// Used to remove a filter driver that was added with RegisterFilterDriver().\r | |
202 | ///\r | |
79964ac8 | 203 | EFI_DATA_HUB_UNREGISTER_FILTER_DRIVER UnregisterFilterDriver;\r |
204 | };\r | |
205 | \r | |
206 | extern EFI_GUID gEfiDataHubProtocolGuid;\r | |
207 | \r | |
208 | #endif\r |