-/**@file\r
+/** @file\r
This code produces the Data Hub protocol. It preloads the data hub\r
with status information copied in from PEI HOBs.\r
\r
- Only code that implements the Data Hub protocol should go in this file!\r
-\r
- The Term MTC stands for MonoTonicCounter. \r
-\r
- For more information please look at DataHub.doc\r
-\r
- NOTE: For extra security of the log GetNextDataRecord () could return a copy\r
- of the data record.\r
- \r
-Copyright (c) 2006, Intel Corporation \r
+Copyright (c) 2006 - 2009, 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
CONST EFI_GUID gZeroGuid = { 0, 0, 0, { 0, 0, 0, 0, 0, 0, 0, 0 } };\r
\r
//\r
-// Module Global:\r
// Since this driver will only ever produce one instance of the Logging Hub\r
// protocol you are not required to dynamically allocate the PrivateData.\r
//\r
);\r
\r
/**\r
-\r
Log data record into the data logging hub\r
\r
- @param This - Protocol instance structure\r
- @param DataRecordGuid - GUID that defines record contents\r
- @param ProducerName - GUID that defines the name of the producer of the data\r
- @param DataRecordClass - Class that defines generic record type\r
- @param RawData - Data Log record as defined by DataRecordGuid\r
- @param RawDataSize - Size of Data Log data in bytes\r
+ @param This Protocol instance structure\r
+ @param DataRecordGuid GUID that defines record contents\r
+ @param ProducerName GUID that defines the name of the producer of the data\r
+ @param DataRecordClass Class that defines generic record type\r
+ @param RawData Data Log record as defined by DataRecordGuid\r
+ @param RawDataSize Size of Data Log data in bytes\r
\r
- @retval EFI_SUCCESS - If data was logged\r
- @retval EFI_OUT_OF_RESOURCES - If data was not logged due to lack of system \r
- resources.\r
+ @retval EFI_SUCCESS If data was logged\r
+ @retval EFI_OUT_OF_RESOURCES If data was not logged due to lack of system \r
+ resources.\r
**/\r
EFI_STATUS\r
EFIAPI\r
// in the record's class and guid.\r
//\r
Head = &Private->FilterDriverListHead;\r
- for (Link = Head->ForwardLink; Link != Head; Link = Link->ForwardLink) {\r
+ for (Link = GetFirstNode(Head); Link != Head; Link = GetNextNode(Head, Link)) {\r
FilterEntry = FILTER_ENTRY_FROM_LINK (Link);\r
if (((FilterEntry->ClassFilter & DataRecordClass) != 0) &&\r
(CompareGuid (&FilterEntry->FilterDataRecordGuid, &gZeroGuid) || \r
not yet read by the filter driver. If FilterDriverEvent is NULL and \r
MonotonicCount is zero return the first data record.\r
\r
- @param This The EFI_DATA_HUB_PROTOCOL instance.\r
- @param MonotonicCount Specifies the Record to return. On input, zero means\r
- return the first record. On output, contains the next\r
- record to availible. Zero indicates no more records.\r
- @param FilterDriverEvent If FilterDriverEvent is not passed in a MonotonicCount \r
- of zero, it means to return the first data record. \r
- If FilterDriverEvent is passed in, then a MonotonicCount \r
- of zero means to return the first data not yet read by \r
- FilterDriverEvent.\r
- @param Record Returns a dynamically allocated memory buffer with a data \r
- record that matches MonotonicCount.\r
-\r
- @retval EFI_SUCCESS - Data was returned in Record.\r
- @retval EFI_INVALID_PARAMETER - FilterDriverEvent was passed in but does not exist.\r
- @retval EFI_NOT_FOUND - MonotonicCount does not match any data record in the\r
- system. If a MonotonicCount of zero was passed in, then\r
- no data records exist in the system.\r
- @retval EFI_OUT_OF_RESOURCES - Record was not returned due to lack of system resources.\r
+ @param This Pointer to the EFI_DATA_HUB_PROTOCOL instance.\r
+ @param MonotonicCount Specifies the Record to return. On input, zero means\r
+ return the first record. On output, contains the next\r
+ record to availible. Zero indicates no more records.\r
+ @param FilterDriverEvent If FilterDriverEvent is not passed in a MonotonicCount \r
+ of zero, it means to return the first data record. \r
+ If FilterDriverEvent is passed in, then a MonotonicCount \r
+ of zero means to return the first data not yet read by \r
+ FilterDriverEvent.\r
+ @param Record Returns a dynamically allocated memory buffer with a data \r
+ record that matches MonotonicCount.\r
+\r
+ @retval EFI_SUCCESS Data was returned in Record.\r
+ @retval EFI_INVALID_PARAMETER FilterDriverEvent was passed in but does not exist.\r
+ @retval EFI_NOT_FOUND MonotonicCount does not match any data record in the\r
+ system. If a MonotonicCount of zero was passed in, then\r
+ no data records exist in the system.\r
+ @retval EFI_OUT_OF_RESOURCES Record was not returned due to lack of system resources.\r
\r
**/\r
EFI_STATUS\r
with data records that have been recorded prior to the FilterEvent being \r
registered.\r
\r
- @param This - The EFI_DATA_HUB_PROTOCOL instance.\r
- @param FilterEvent - The EFI_EVENT to signal whenever data that matches \r
- FilterClass is logged in the system.\r
- @param FilterTpl - The maximum EFI_TPL at which FilterEvent can be \r
- signaled. It is strongly recommended that you use the \r
- lowest EFI_TPL possible.\r
- @param FilterClass - FilterEvent will be signaled whenever a bit in \r
- EFI_DATA_RECORD_HEADER.DataRecordClass is also set in \r
- FilterClass. If FilterClass is zero, no class-based \r
- filtering will be performed.\r
- @param FilterDataRecordGuid - FilterEvent will be signaled whenever FilterDataRecordGuid \r
- matches EFI_DATA_RECORD_HEADER.DataRecordGuid. If \r
- FilterDataRecordGuid is NULL, then no GUID-based filtering \r
- will be performed. \r
-\r
- @retval EFI_SUCCESS - The filter driver event was registered.\r
- @retval EFI_ALREADY_STARTED - FilterEvent was previously registered and cannot be \r
- registered again.\r
- @retval EFI_OUT_OF_RESOURCES - The filter driver event was not registered due to lack of \r
- system resources.\r
+ @param This Pointer to The EFI_DATA_HUB_PROTOCOL instance.\r
+ @param FilterEvent The EFI_EVENT to signal whenever data that matches \r
+ FilterClass is logged in the system.\r
+ @param FilterTpl The maximum EFI_TPL at which FilterEvent can be \r
+ signaled. It is strongly recommended that you use the \r
+ lowest EFI_TPL possible.\r
+ @param FilterClass FilterEvent will be signaled whenever a bit in \r
+ EFI_DATA_RECORD_HEADER.DataRecordClass is also set in \r
+ FilterClass. If FilterClass is zero, no class-based \r
+ filtering will be performed.\r
+ @param FilterDataRecordGuid FilterEvent will be signaled whenever FilterDataRecordGuid \r
+ matches EFI_DATA_RECORD_HEADER.DataRecordGuid. If \r
+ FilterDataRecordGuid is NULL, then no GUID-based filtering \r
+ will be performed. \r
+\r
+ @retval EFI_SUCCESS The filter driver event was registered.\r
+ @retval EFI_ALREADY_STARTED FilterEvent was previously registered and cannot be \r
+ registered again.\r
+ @retval EFI_OUT_OF_RESOURCES The filter driver event was not registered due to lack of \r
+ system resources.\r
\r
**/\r
EFI_STATUS\r
Remove a Filter Driver, so it no longer gets called when data \r
information is logged.\r
\r
- @param This - Protocol instance structure\r
-\r
- @param FilterEvent - Event that represents a filter driver that is to be \r
- Unregistered.\r
+ @param This Protocol instance structure\r
\r
- @retval EFI_SUCCESS - If FilterEvent was unregistered\r
-\r
- @retval EFI_NOT_FOUND - If FilterEvent does not exist\r
+ @param FilterEvent Event that represents a filter driver that is to be \r
+ Unregistered.\r
\r
+ @retval EFI_SUCCESS If FilterEvent was unregistered\r
+ @retval EFI_NOT_FOUND If FilterEvent does not exist\r
**/\r
EFI_STATUS\r
EFIAPI\r
\r
/**\r
Search the Head list for a EFI_DATA_HUB_FILTER_DRIVER member that\r
- represents Event and return it.\r
-\r
- @param Head - Head of dual linked list of EFI_DATA_HUB_FILTER_DRIVER\r
- structures.\r
+ represents Event and return it.\r
\r
- @param Event - Event to be search for in the Head list.\r
+ @param Head Pointer to head of dual linked list of EFI_DATA_HUB_FILTER_DRIVER structures.\r
+ @param Event Event to be search for in the Head list.\r
\r
- @retval EFI_DATA_HUB_FILTER_DRIVER - Returned if Event stored in the\r
- Head doubly linked list.\r
-\r
- @retval NULL - If Event is not in the list\r
+ @retval EFI_DATA_HUB_FILTER_DRIVER Returned if Event stored in the Head doubly linked list.\r
+ @retval NULL If Event is not in the list\r
\r
**/\r
DATA_HUB_FILTER_DRIVER *\r
IN LIST_ENTRY *Head,\r
IN EFI_EVENT Event\r
)\r
-\r
{\r
DATA_HUB_FILTER_DRIVER *FilterEntry;\r
LIST_ENTRY *Link;\r
\r
- for (Link = Head->ForwardLink; Link != Head; Link = Link->ForwardLink) {\r
+ for (Link = GetFirstNode(Head); Link != Head; Link = GetNextNode(Head, Link)) {\r
FilterEntry = FILTER_ENTRY_FROM_LINK (Link);\r
if (FilterEntry->Event == Event) {\r
return FilterEntry;\r
\r
/**\r
Search the Head doubly linked list for the passed in MTC. Return the \r
- matching element in Head and the MTC on the next entry.\r
-\r
- @param Head - Head of Data Log linked list.\r
-\r
- @param ClassFilter - Only match the MTC if it is in the same Class as the\r
- ClassFilter.\r
+ matching element in Head and the MTC on the next entry.\r
\r
- @param PtrCurrentMTC - On IN contians MTC to search for. On OUT contians next\r
- MTC in the data log list or zero if at end of the list.\r
+ @param Head Head of Data Log linked list.\r
+ @param ClassFilter Only match the MTC if it is in the same Class as the\r
+ ClassFilter.\r
+ @param PtrCurrentMTC On IN contians MTC to search for. On OUT contians next\r
+ MTC in the data log list or zero if at end of the list.\r
\r
- @retval EFI_DATA_LOG_ENTRY - Return pointer to data log data from Head list.\r
-\r
- @retval NULL - If no data record exists.\r
+ @retval EFI_DATA_LOG_ENTRY Return pointer to data log data from Head list.\r
+ @retval NULL If no data record exists.\r
\r
**/\r
EFI_DATA_RECORD_HEADER *\r
ReturnFirstEntry = (BOOLEAN) (*PtrCurrentMTC == 0);\r
\r
Record = NULL;\r
- for (Link = Head->ForwardLink; Link != Head; Link = Link->ForwardLink) {\r
+ for (Link = GetFirstNode(Head); Link != Head; Link = GetNextNode(Head, Link)) {\r
LogEntry = DATA_ENTRY_FROM_LINK (Link);\r
if ((LogEntry->Record->DataRecordClass & ClassFilter) == 0) {\r
//\r
// MTC to zero.\r
//\r
*PtrCurrentMTC = 0;\r
- for (Link = Link->ForwardLink; Link != Head; Link = Link->ForwardLink) {\r
+ for (Link = GetNextNode(Head, Link); Link != Head; Link = GetNextNode(Head, Link)) {\r
NextLogEntry = DATA_ENTRY_FROM_LINK (Link);\r
if ((NextLogEntry->Record->DataRecordClass & ClassFilter) != 0) {\r
//\r
}\r
\r
/**\r
+ Driver's Entry point routine that install Driver to produce Data Hub protocol. \r
\r
- Install Driver to produce Data Hub protocol. \r
-\r
- @param ImageHandle Module's image handle\r
- @param SystemTable Pointer of EFI_SYSTEM_TABLE\r
-\r
-\r
- @retval EFI_SUCCESS - Logging Hub protocol installed\r
+ @param ImageHandle Module's image handle\r
+ @param SystemTable Pointer of EFI_SYSTEM_TABLE\r
\r
- @retval Other - No protocol installed, unload driver.\r
+ @retval EFI_SUCCESS Logging Hub protocol installed\r
+ @retval Other No protocol installed, unload driver.\r
\r
**/\r
EFI_STATUS\r
\r
//\r
// Initialize Private Data in CORE_LOGGING_HUB_INSTANCE that is\r
- // required by this protocol\r
+ // required by this protocol\r
//\r
InitializeListHead (&mPrivateData.DataListHead);\r
InitializeListHead (&mPrivateData.FilterDriverListHead);\r
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