[mirror_edk2.git] / IntelFrameworkModulePkg / Universal / StatusCode / Dxe / DataHubStatusCodeWorker.c

/** @file\r
  Data Hub status code worker in DXE.\r
\r
  Copyright (c) 2006, Intel Corporation\r
  All rights reserved. This program and the accompanying materials\r
  are licensed and made available under the terms and conditions of the BSD License\r
  which accompanies this distribution.  The full text of the license may be found at\r
  http://opensource.org/licenses/bsd-license.php\r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
  Module Name:  DataHubStatusCodeWorker.c\r
\r
**/\r
//\r
// Include common header file for this module.\r
//\r
#include "CommonHeader.h"\r
\r
#include "DxeStatusCode.h"\r
\r
//\r
// Initialize FIFO to cache records.\r
//\r
STATIC\r
LIST_ENTRY                mRecordsFifo          = INITIALIZE_LIST_HEAD_VARIABLE (mRecordsFifo);\r
STATIC\r
LIST_ENTRY                mRecordsBuffer        = INITIALIZE_LIST_HEAD_VARIABLE (mRecordsBuffer);\r
STATIC\r
EFI_EVENT                 mLogDataHubEvent;\r
//\r
// Cache data hub protocol.\r
//\r
STATIC\r
EFI_DATA_HUB_PROTOCOL     *mDataHubProtocol;\r
\r
\r
/**\r
  Return one DATAHUB_STATUSCODE_RECORD space.\r
  The size of free record pool would be extend, if the pool is empty.\r
\r
\r
  @retval  NULL   Can not allocate free memeory for record.\r
  @retval  !NULL  Point to buffer of record.\r
\r
**/\r
STATIC\r
DATAHUB_STATUSCODE_RECORD *\r
AcquireRecordBuffer (\r
  VOID\r
  )\r
{\r
  DATAHUB_STATUSCODE_RECORD *Record;\r
  EFI_TPL                   CurrentTpl;\r
  LIST_ENTRY                *Node;\r
  UINT32                    Index;\r
\r
  CurrentTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r
\r
  if (!IsListEmpty (&mRecordsBuffer)) {\r
    Node = GetFirstNode (&mRecordsBuffer);\r
    RemoveEntryList (Node);\r
\r
    Record = _CR (Node, DATAHUB_STATUSCODE_RECORD, Node);\r
  } else {\r
    if (CurrentTpl > TPL_NOTIFY) {\r
      gBS->RestoreTPL (CurrentTpl);\r
      return NULL;\r
    }\r
\r
    gBS->RestoreTPL (CurrentTpl);\r
    Record   = (DATAHUB_STATUSCODE_RECORD *) AllocateZeroPool (sizeof (DATAHUB_STATUSCODE_RECORD) * 16);\r
    if (NULL == Record) {\r
      return NULL;\r
    }\r
\r
    CurrentTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r
    for (Index = 1; Index < 16; Index++) {\r
      InsertTailList (&mRecordsBuffer, &Record[Index].Node);\r
    }\r
  }\r
\r
  Record->Signature = DATAHUB_STATUS_CODE_SIGNATURE;\r
  InsertTailList (&mRecordsFifo, &Record->Node);\r
\r
  gBS->RestoreTPL (CurrentTpl);\r
\r
  return Record;\r
}\r
\r
\r
/**\r
  Retrieve one record from Records FIFO. The record would be removed from FIFO and\r
  release to free record buffer.\r
\r
  @return   !NULL   Point to record, which is ready to be logged.\r
  @return   NULL    the FIFO of record is empty.\r
\r
**/\r
STATIC\r
DATAHUB_STATUSCODE_RECORD *\r
RetrieveRecord (\r
  VOID\r
  )\r
{\r
  DATAHUB_STATUSCODE_RECORD   *Record = NULL;\r
  LIST_ENTRY                  *Node;\r
  EFI_TPL                     CurrentTpl;\r
\r
  CurrentTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r
\r
  if (!IsListEmpty (&mRecordsFifo)) {\r
    Node = GetFirstNode (&mRecordsFifo);\r
    Record = CR (Node, DATAHUB_STATUSCODE_RECORD, Node, DATAHUB_STATUS_CODE_SIGNATURE);\r
\r
    RemoveEntryList (&Record->Node);\r
    InsertTailList (&mRecordsBuffer, &Record->Node);\r
    Record->Signature = 0;\r
  }\r
\r
  gBS->RestoreTPL (CurrentTpl);\r
\r
  return Record;\r
}\r
\r
\r
/**\r
  Report status code into DataHub.\r
\r
  @param  CodeType      Indicates the type of status code being reported.  Type EFI_STATUS_CODE_TYPE is defined in "Related Definitions" below.\r
\r
  @param  Value         Describes the current status of a hardware or software entity.\r
                        This included information about the class and subclass that is used to classify the entity\r
                        as well as an operation.  For progress codes, the operation is the current activity.\r
                        For error codes, it is the exception.  For debug codes, it is not defined at this time.\r
                        Type EFI_STATUS_CODE_VALUE is defined in "Related Definitions" below.\r
                        Specific values are discussed in the Intel? Platform Innovation Framework for EFI Status Code Specification.\r
\r
  @param  Instance      The enumeration of a hardware or software entity within the system.\r
                        A system may contain multiple entities that match a class/subclass pairing.\r
                        The instance differentiates between them.  An instance of 0 indicates that instance information is unavailable,\r
                        not meaningful, or not relevant.  Valid instance numbers start with 1.\r
\r
\r
  @param  CallerId      This optional parameter may be used to identify the caller.\r
                        This parameter allows the status code driver to apply different rules to different callers.\r
                        Type EFI_GUID is defined in InstallProtocolInterface() in the EFI 1.10 Specification.\r
\r
\r
  @param  Data          This optional parameter may be used to pass additional data\r
\r
  @retval EFI_OUT_OF_RESOURCES   Can not acquire record buffer.\r
  @retval EFI_DEVICE_ERROR       EFI serial device can not work after ExitBootService() is called .\r
  @retval EFI_SUCCESS            Success to cache status code and signal log data event.\r
\r
**/\r
EFI_STATUS\r
DataHubStatusCodeReportWorker (\r
  IN EFI_STATUS_CODE_TYPE     CodeType,\r
  IN EFI_STATUS_CODE_VALUE    Value,\r
  IN UINT32                   Instance,\r
  IN EFI_GUID                 *CallerId,\r
  IN EFI_STATUS_CODE_DATA     *Data OPTIONAL\r
  )\r
{\r
  DATAHUB_STATUSCODE_RECORD  *Record;\r
  UINT32                     ErrorLevel;\r
  VA_LIST                    Marker;\r
  CHAR8                      *Format;\r
  UINTN                      CharCount;\r
\r
  //\r
  // See whether in runtime phase or not.\r
  //\r
  if (EfiAtRuntime ()) {\r
    return EFI_DEVICE_ERROR;\r
  }\r
\r
  Record = AcquireRecordBuffer ();\r
  if (Record == NULL) {\r
    //\r
    // There are no empty record buffer in private buffers\r
    //\r
    return EFI_OUT_OF_RESOURCES;\r
  }\r
  //\r
  // Construct Data Hub Extended Data\r
  //\r
  Record->CodeType = CodeType;\r
  Record->Value    = Value;\r
  Record->Instance = Instance;\r
\r
  if (CallerId != NULL) {\r
    CopyMem (&Record->CallerId, CallerId, sizeof (EFI_GUID));\r
  }\r
\r
  if (Data != NULL) {\r
    if (ReportStatusCodeExtractDebugInfo (Data, &ErrorLevel, &Marker, &Format)) {\r
      CharCount = UnicodeVSPrintAsciiFormat (\r
                    (CHAR16 *) Record->ExtendData,\r
                    EFI_STATUS_CODE_DATA_MAX_SIZE,\r
                    Format,\r
                    Marker\r
                    );\r
      //\r
      // Change record data type from DebugType to String Type.\r
      //\r
      CopyGuid (&Record->Data.Type, &gEfiStatusCodeDataTypeStringGuid);\r
      Record->Data.HeaderSize = Data->HeaderSize;\r
      Record->Data.Size = (UINT16) ((CharCount + 1) * sizeof (CHAR16));\r
    } else {\r
      //\r
      // Copy status code data header\r
      //\r
      CopyMem (&Record->Data, Data, sizeof (EFI_STATUS_CODE_DATA));\r
\r
      if (Data->Size > EFI_STATUS_CODE_DATA_MAX_SIZE) {\r
        Record->Data.Size = EFI_STATUS_CODE_DATA_MAX_SIZE;\r
      }\r
      CopyMem (Record->ExtendData, Data + 1, Record->Data.Size);\r
    }\r
  }\r
\r
  gBS->SignalEvent (mLogDataHubEvent);\r
\r
  return EFI_SUCCESS;\r
}\r
\r
\r
/**\r
  The Event handler which will be notified to log data in Data Hub.\r
\r
  @param  Event       Instance of the EFI_EVENT to signal whenever data is\r
                      available to be logged in the system.\r
  @param  Context     Context of the event.\r
\r
**/\r
STATIC\r
VOID\r
EFIAPI\r
LogDataHubEventCallBack (\r
  IN  EFI_EVENT     Event,\r
  IN  VOID          *Context\r
  )\r
{\r
  DATAHUB_STATUSCODE_RECORD         *Record;\r
  UINT32                            Size;\r
  UINT64                            DataRecordClass;\r
\r
  //\r
  // Log DataRecord in Data Hub.\r
  // Journal records fifo to find all record entry.\r
  //\r
  while (1) {\r
    Record = RetrieveRecord ();\r
    if (Record == NULL) {\r
      break;\r
    }\r
    //\r
    // Add in the size of the header we added.\r
    //\r
    Size = sizeof (DATAHUB_STATUSCODE_RECORD) + (UINT32) Record->Data.Size;\r
\r
    if ((Record->CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_PROGRESS_CODE) {\r
      DataRecordClass = EFI_DATA_RECORD_CLASS_PROGRESS_CODE;\r
    } else if ((Record->CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_ERROR_CODE) {\r
      DataRecordClass = EFI_DATA_RECORD_CLASS_ERROR;\r
    } else if ((Record->CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_DEBUG_CODE) {\r
      DataRecordClass = EFI_DATA_RECORD_CLASS_DEBUG;\r
    } else {\r
      //\r
      // Should never get here.\r
      //\r
      DataRecordClass = EFI_DATA_RECORD_CLASS_DEBUG |\r
        EFI_DATA_RECORD_CLASS_ERROR |\r
        EFI_DATA_RECORD_CLASS_DATA |\r
        EFI_DATA_RECORD_CLASS_PROGRESS_CODE;\r
    }\r
\r
    //\r
    // Log DataRecord in Data Hub\r
    //\r
\r
    mDataHubProtocol->LogData (\r
                        mDataHubProtocol,\r
                        &gEfiStatusCodeGuid,\r
                        &gEfiStatusCodeRuntimeProtocolGuid,\r
                        DataRecordClass,\r
                        Record,\r
                        Size\r
                        );\r
\r
  }\r
}\r
\r
\r
/**\r
  Initialize data hubstatus code.\r
  Create a data hub listener.\r
\r
  @return  The function always return EFI_SUCCESS\r
\r
**/\r
EFI_STATUS\r
DataHubStatusCodeInitializeWorker (\r
  VOID\r
  )\r
{\r
  EFI_STATUS  Status;\r
\r
  Status = gBS->LocateProtocol (\r
                  &gEfiDataHubProtocolGuid, \r
                  NULL, \r
                  (VOID **) &mDataHubProtocol\r
                  );\r
  ASSERT_EFI_ERROR (Status);\r
\r
  //\r
  // Create a Notify Event to log data in Data Hub\r
  //\r
  Status = gBS->CreateEvent (\r
                  EVT_NOTIFY_SIGNAL,\r
                  TPL_CALLBACK,\r
                  LogDataHubEventCallBack,\r
                  NULL,\r
                  &mLogDataHubEvent\r
                  );\r
\r
  ASSERT_EFI_ERROR (Status);\r
\r
  return EFI_SUCCESS;\r
}\r
\r
\r
Commit	Line	Data
ad1a1798	1	/** @file\r
	2	Data Hub status code worker in DXE.\r
	3	\r
	4	Copyright (c) 2006, Intel Corporation\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
	12	\r
	13	Module Name: DataHubStatusCodeWorker.c\r
	14	\r
	15	**/\r
	16	//\r
	17	// Include common header file for this module.\r
	18	//\r
	19	#include "CommonHeader.h"\r
	20	\r
	21	#include "DxeStatusCode.h"\r
	22	\r
	23	//\r
	24	// Initialize FIFO to cache records.\r
	25	//\r
	26	STATIC\r
	27	LIST_ENTRY mRecordsFifo = INITIALIZE_LIST_HEAD_VARIABLE (mRecordsFifo);\r
	28	STATIC\r
	29	LIST_ENTRY mRecordsBuffer = INITIALIZE_LIST_HEAD_VARIABLE (mRecordsBuffer);\r
	30	STATIC\r
	31	EFI_EVENT mLogDataHubEvent;\r
	32	//\r
	33	// Cache data hub protocol.\r
	34	//\r
	35	STATIC\r
	36	EFI_DATA_HUB_PROTOCOL *mDataHubProtocol;\r
	37	\r
	38	\r
	39	/**\r
	40	Return one DATAHUB_STATUSCODE_RECORD space.\r
	41	The size of free record pool would be extend, if the pool is empty.\r
	42	\r
	43	\r
	44	@retval NULL Can not allocate free memeory for record.\r
	45	@retval !NULL Point to buffer of record.\r
	46	\r
	47	**/\r
	48	STATIC\r
	49	DATAHUB_STATUSCODE_RECORD *\r
	50	AcquireRecordBuffer (\r
	51	VOID\r
	52	)\r
	53	{\r
	54	DATAHUB_STATUSCODE_RECORD *Record;\r
	55	EFI_TPL CurrentTpl;\r
	56	LIST_ENTRY *Node;\r
	57	UINT32 Index;\r
	58	\r
	59	CurrentTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r
	60	\r
	61	if (!IsListEmpty (&mRecordsBuffer)) {\r
	62	Node = GetFirstNode (&mRecordsBuffer);\r
	63	RemoveEntryList (Node);\r
	64	\r
65	Record = _CR (Node, DATAHUB_STATUSCODE_RECORD, Node);\r
66	} else {\r
67	if (CurrentTpl > TPL_NOTIFY) {\r
68	gBS->RestoreTPL (CurrentTpl);\r
69	return NULL;\r
70	}\r
71	\r
72	gBS->RestoreTPL (CurrentTpl);\r
73	Record = (DATAHUB_STATUSCODE_RECORD ) AllocateZeroPool (sizeof (DATAHUB_STATUSCODE_RECORD) 16);\r
74	if (NULL == Record) {\r
75	return NULL;\r
76	}\r
77	\r
78	CurrentTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r
79	for (Index = 1; Index < 16; Index++) {\r
80	InsertTailList (&mRecordsBuffer, &Record[Index].Node);\r
81	}\r
82	}\r
83	\r
84	Record->Signature = DATAHUB_STATUS_CODE_SIGNATURE;\r
85	InsertTailList (&mRecordsFifo, &Record->Node);\r
86	\r
87	gBS->RestoreTPL (CurrentTpl);\r
88	\r
89	return Record;\r
90	}\r
91	\r
92	\r
93	/**\r
94	Retrieve one record from Records FIFO. The record would be removed from FIFO and\r
95	release to free record buffer.\r
96	\r
97	@return !NULL Point to record, which is ready to be logged.\r
98	@return NULL the FIFO of record is empty.\r
99	\r
100	**/\r
101	STATIC\r
102	DATAHUB_STATUSCODE_RECORD *\r
103	RetrieveRecord (\r
104	VOID\r
105	)\r
106	{\r
107	DATAHUB_STATUSCODE_RECORD *Record = NULL;\r
108	LIST_ENTRY *Node;\r
109	EFI_TPL CurrentTpl;\r
110	\r
111	CurrentTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r
112	\r
113	if (!IsListEmpty (&mRecordsFifo)) {\r
114	Node = GetFirstNode (&mRecordsFifo);\r
115	Record = CR (Node, DATAHUB_STATUSCODE_RECORD, Node, DATAHUB_STATUS_CODE_SIGNATURE);\r
116	\r
117	RemoveEntryList (&Record->Node);\r
118	InsertTailList (&mRecordsBuffer, &Record->Node);\r
119	Record->Signature = 0;\r
120	}\r
121	\r
122	gBS->RestoreTPL (CurrentTpl);\r
123	\r
124	return Record;\r
125	}\r
126	\r
127	\r
128	/**\r
129	Report status code into DataHub.\r
130	\r
131	@param CodeType Indicates the type of status code being reported. Type EFI_STATUS_CODE_TYPE is defined in "Related Definitions" below.\r
132	\r
133	@param Value Describes the current status of a hardware or software entity.\r
134	This included information about the class and subclass that is used to classify the entity\r
135	as well as an operation. For progress codes, the operation is the current activity.\r
136	For error codes, it is the exception. For debug codes, it is not defined at this time.\r
137	Type EFI_STATUS_CODE_VALUE is defined in "Related Definitions" below.\r
138	Specific values are discussed in the Intel? Platform Innovation Framework for EFI Status Code Specification.\r
139	\r
140	@param Instance The enumeration of a hardware or software entity within the system.\r
141	A system may contain multiple entities that match a class/subclass pairing.\r
142	The instance differentiates between them. An instance of 0 indicates that instance information is unavailable,\r
143	not meaningful, or not relevant. Valid instance numbers start with 1.\r
144	\r
145	\r
146	@param CallerId This optional parameter may be used to identify the caller.\r
147	This parameter allows the status code driver to apply different rules to different callers.\r
148	Type EFI_GUID is defined in InstallProtocolInterface() in the EFI 1.10 Specification.\r
149	\r
150	\r
151	@param Data This optional parameter may be used to pass additional data\r
152	\r
153	@retval EFI_OUT_OF_RESOURCES Can not acquire record buffer.\r
154	@retval EFI_DEVICE_ERROR EFI serial device can not work after ExitBootService() is called .\r
155	@retval EFI_SUCCESS Success to cache status code and signal log data event.\r
156	\r
157	**/\r
158	EFI_STATUS\r
159	DataHubStatusCodeReportWorker (\r
160	IN EFI_STATUS_CODE_TYPE CodeType,\r
161	IN EFI_STATUS_CODE_VALUE Value,\r
162	IN UINT32 Instance,\r
163	IN EFI_GUID *CallerId,\r
164	IN EFI_STATUS_CODE_DATA *Data OPTIONAL\r
165	)\r
166	{\r
167	DATAHUB_STATUSCODE_RECORD *Record;\r
168	UINT32 ErrorLevel;\r
169	VA_LIST Marker;\r
170	CHAR8 *Format;\r
171	UINTN CharCount;\r
172	\r
173	//\r
174	// See whether in runtime phase or not.\r
175	//\r
176	if (EfiAtRuntime ()) {\r
177	return EFI_DEVICE_ERROR;\r
178	}\r
179	\r
180	Record = AcquireRecordBuffer ();\r
181	if (Record == NULL) {\r
182	//\r
183	// There are no empty record buffer in private buffers\r
184	//\r
185	return EFI_OUT_OF_RESOURCES;\r
186	}\r
187	//\r
188	// Construct Data Hub Extended Data\r
189	//\r
190	Record->CodeType = CodeType;\r
191	Record->Value = Value;\r
192	Record->Instance = Instance;\r
193	\r
194	if (CallerId != NULL) {\r
195	CopyMem (&Record->CallerId, CallerId, sizeof (EFI_GUID));\r
196	}\r
197	\r
198	if (Data != NULL) {\r
199	if (ReportStatusCodeExtractDebugInfo (Data, &ErrorLevel, &Marker, &Format)) {\r
200	CharCount = UnicodeVSPrintAsciiFormat (\r
201	(CHAR16 *) Record->ExtendData,\r
202	EFI_STATUS_CODE_DATA_MAX_SIZE,\r
203	Format,\r
204	Marker\r
205	);\r
206	//\r
207	// Change record data type from DebugType to String Type.\r
208	//\r
209	CopyGuid (&Record->Data.Type, &gEfiStatusCodeDataTypeStringGuid);\r
210	Record->Data.HeaderSize = Data->HeaderSize;\r
211	Record->Data.Size = (UINT16) ((CharCount + 1) * sizeof (CHAR16));\r
212	} else {\r
213	//\r
214	// Copy status code data header\r
215	//\r
216	CopyMem (&Record->Data, Data, sizeof (EFI_STATUS_CODE_DATA));\r
217	\r
218	if (Data->Size > EFI_STATUS_CODE_DATA_MAX_SIZE) {\r
219	Record->Data.Size = EFI_STATUS_CODE_DATA_MAX_SIZE;\r
220	}\r
221	CopyMem (Record->ExtendData, Data + 1, Record->Data.Size);\r
222	}\r
223	}\r
224	\r
225	gBS->SignalEvent (mLogDataHubEvent);\r
226	\r
227	return EFI_SUCCESS;\r
228	}\r
229	\r
230	\r
231	/**\r
232	The Event handler which will be notified to log data in Data Hub.\r
233	\r
234	@param Event Instance of the EFI_EVENT to signal whenever data is\r
235	available to be logged in the system.\r
236	@param Context Context of the event.\r
237	\r
238	**/\r
239	STATIC\r
240	VOID\r
241	EFIAPI\r
242	LogDataHubEventCallBack (\r
243	IN EFI_EVENT Event,\r
244	IN VOID *Context\r
245	)\r
246	{\r
247	DATAHUB_STATUSCODE_RECORD *Record;\r
248	UINT32 Size;\r
249	UINT64 DataRecordClass;\r
250	\r
251	//\r
252	// Log DataRecord in Data Hub.\r
253	// Journal records fifo to find all record entry.\r
254	//\r
255	while (1) {\r
256	Record = RetrieveRecord ();\r
257	if (Record == NULL) {\r
258	break;\r
259	}\r
260	//\r
261	// Add in the size of the header we added.\r
262	//\r
263	Size = sizeof (DATAHUB_STATUSCODE_RECORD) + (UINT32) Record->Data.Size;\r
264	\r
265	if ((Record->CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_PROGRESS_CODE) {\r
266	DataRecordClass = EFI_DATA_RECORD_CLASS_PROGRESS_CODE;\r
267	} else if ((Record->CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_ERROR_CODE) {\r
268	DataRecordClass = EFI_DATA_RECORD_CLASS_ERROR;\r
269	} else if ((Record->CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_DEBUG_CODE) {\r
270	DataRecordClass = EFI_DATA_RECORD_CLASS_DEBUG;\r
271	} else {\r
272	//\r
273	// Should never get here.\r
274	//\r
275	DataRecordClass = EFI_DATA_RECORD_CLASS_DEBUG \|\r
276	EFI_DATA_RECORD_CLASS_ERROR \|\r
277	EFI_DATA_RECORD_CLASS_DATA \|\r
278	EFI_DATA_RECORD_CLASS_PROGRESS_CODE;\r
279	}\r
280	\r
281	//\r
282	// Log DataRecord in Data Hub\r
283	//\r
284	\r
285	mDataHubProtocol->LogData (\r
286	mDataHubProtocol,\r
287	&gEfiStatusCodeGuid,\r
288	&gEfiStatusCodeRuntimeProtocolGuid,\r
289	DataRecordClass,\r
290	Record,\r
291	Size\r
292	);\r
293	\r
294	}\r
295	}\r
296	\r
297	\r
298	/**\r
299	Initialize data hubstatus code.\r
300	Create a data hub listener.\r
301	\r
302	@return The function always return EFI_SUCCESS\r
303	\r
304	**/\r
305	EFI_STATUS\r
306	DataHubStatusCodeInitializeWorker (\r
307	VOID\r
308	)\r
309	{\r
310	EFI_STATUS Status;\r
311	\r
312	Status = gBS->LocateProtocol (\r
313	&gEfiDataHubProtocolGuid, \r
314	NULL, \r
315	(VOID **) &mDataHubProtocol\r
316	);\r
317	ASSERT_EFI_ERROR (Status);\r
318	\r
319	//\r
320	// Create a Notify Event to log data in Data Hub\r
321	//\r
322	Status = gBS->CreateEvent (\r
323	EVT_NOTIFY_SIGNAL,\r
324	TPL_CALLBACK,\r
325	LogDataHubEventCallBack,\r
326	NULL,\r
327	&mLogDataHubEvent\r
328	);\r
329	\r
330	ASSERT_EFI_ERROR (Status);\r
331	\r
332	return EFI_SUCCESS;\r
333	}\r
334	\r
335	\r