\r
return EFI_SUCCESS;\r
}\r
-/** @file\r
- PI SMM Status Code Protocol on Framework SMM Status Code Protocol Thunk.\r
-\r
- This thunk driver produces PI SMM Status Code Protocol and SMM Report Status Code Handler Protocol.\r
- And it registers a status code handler within itself to route status codes into Framework SMM Status\r
- Code Protocol.\r
-\r
- Note that Framework SMM Status Code Protocol and PI SMM Status Code Protocol have identical protocol\r
- GUID and interface structure, but they are in different handle databases.\r
-\r
- Copyright (c) 2010, Intel Corporation. All rights reserved<BR>\r
- This program and the accompanying materials are licensed and made available under \r
- the terms and conditions of the BSD License that accompanies this distribution. \r
- 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
-**/\r
-\r
-#include "PiSmmStatusCodeOnFrameworkSmmStatusCodeThunk.h"\r
-\r
-LIST_ENTRY mCallbackListHead = INITIALIZE_LIST_HEAD_VARIABLE (mCallbackListHead);\r
-\r
-//\r
-// Report operation nest status.\r
-// If it is set, then the report operation has nested.\r
-//\r
-UINT32 mStatusCodeNestStatus = 0;\r
-\r
-EFI_SMM_STATUS_CODE_PROTOCOL mSmmStatusCodeProtocol = {\r
- ReportDispatcher\r
-};\r
-\r
-EFI_SMM_RSC_HANDLER_PROTOCOL mSmmRscHandlerProtocol = {\r
- Register,\r
- Unregister\r
- };\r
-\r
-EFI_SMM_STATUS_CODE_PROTOCOL *mFrameworkSmmStatusCode;\r
-\r
-/**\r
- Register the callback function for ReportStatusCode() notification.\r
- \r
- When this function is called the function pointer is added to an internal list and any future calls to\r
- ReportStatusCode() will be forwarded to the Callback function.\r
-\r
- @param[in] Callback A pointer to a function of type EFI_PEI_RSC_HANDLER_CALLBACK that is called\r
- when a call to ReportStatusCode() occurs.\r
- \r
- @retval EFI_SUCCESS Function was successfully registered.\r
- @retval EFI_INVALID_PARAMETER The callback function was NULL.\r
- @retval EFI_OUT_OF_RESOURCES The internal buffer ran out of space. No more functions can be\r
- registered.\r
- @retval EFI_ALREADY_STARTED The function was already registered. It can't be registered again.\r
- \r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-Register (\r
- IN EFI_SMM_RSC_HANDLER_CALLBACK Callback\r
- )\r
-{\r
- LIST_ENTRY *Link;\r
- SMM_RSC_HANDLER_CALLBACK_ENTRY *CallbackEntry;\r
-\r
- if (Callback == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- for (Link = GetFirstNode (&mCallbackListHead); !IsNull (&mCallbackListHead, Link); Link = GetNextNode (&mCallbackListHead, Link)) {\r
- CallbackEntry = CR (Link, SMM_RSC_HANDLER_CALLBACK_ENTRY, Node, SMM_RSC_HANDLER_CALLBACK_ENTRY_SIGNATURE);\r
- if (CallbackEntry->RscHandlerCallback == Callback) {\r
- //\r
- // If the function was already registered. It can't be registered again.\r
- //\r
- return EFI_ALREADY_STARTED;\r
- }\r
- }\r
-\r
- CallbackEntry = (SMM_RSC_HANDLER_CALLBACK_ENTRY *)AllocatePool (sizeof (SMM_RSC_HANDLER_CALLBACK_ENTRY));\r
- ASSERT (CallbackEntry != NULL);\r
-\r
- CallbackEntry->Signature = SMM_RSC_HANDLER_CALLBACK_ENTRY_SIGNATURE;\r
- CallbackEntry->RscHandlerCallback = Callback;\r
-\r
- InsertTailList (&mCallbackListHead, &CallbackEntry->Node);\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-/**\r
- Remove a previously registered callback function from the notification list.\r
- \r
- ReportStatusCode() messages will no longer be forwarded to the Callback function.\r
- \r
- @param[in] Callback A pointer to a function of type EFI_PEI_RSC_HANDLER_CALLBACK that is to be\r
- unregistered.\r
-\r
- @retval EFI_SUCCESS The function was successfully unregistered.\r
- @retval EFI_INVALID_PARAMETER The callback function was NULL.\r
- @retval EFI_NOT_FOUND The callback function was not found to be unregistered.\r
- \r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-Unregister (\r
- IN EFI_SMM_RSC_HANDLER_CALLBACK Callback\r
- )\r
-{\r
- LIST_ENTRY *Link;\r
- SMM_RSC_HANDLER_CALLBACK_ENTRY *CallbackEntry;\r
-\r
- if (Callback == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- for (Link = GetFirstNode (&mCallbackListHead); !IsNull (&mCallbackListHead, Link); Link = GetNextNode (&mCallbackListHead, Link)) {\r
- CallbackEntry = CR (Link, SMM_RSC_HANDLER_CALLBACK_ENTRY, Node, SMM_RSC_HANDLER_CALLBACK_ENTRY_SIGNATURE);\r
- if (CallbackEntry->RscHandlerCallback == Callback) {\r
- //\r
- // If the function is found in list, delete it and return.\r
- //\r
- RemoveEntryList (&CallbackEntry->Node);\r
- FreePool (CallbackEntry);\r
- return EFI_SUCCESS;\r
- }\r
- }\r
-\r
- return EFI_NOT_FOUND;\r
-}\r
-\r
-\r
-/**\r
- Provides an interface that a software module can call to report a status code.\r
-\r
- @param This EFI_SMM_STATUS_CODE_PROTOCOL instance.\r
- @param Type Indicates the type of status code being reported.\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\r
- classify the entity as well as an operation.\r
- @param Instance The enumeration of a hardware or software entity within\r
- the system. Valid instance numbers start with 1.\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\r
- different callers.\r
- @param Data This optional parameter may be used to pass additional data.\r
-\r
- @retval EFI_SUCCESS The function completed successfully\r
- @retval EFI_DEVICE_ERROR The function should not be completed due to a device error.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-ReportDispatcher (\r
- IN CONST EFI_SMM_STATUS_CODE_PROTOCOL *This,\r
- IN EFI_STATUS_CODE_TYPE Type,\r
- IN EFI_STATUS_CODE_VALUE Value,\r
- IN UINT32 Instance,\r
- IN CONST EFI_GUID *CallerId OPTIONAL,\r
- IN EFI_STATUS_CODE_DATA *Data OPTIONAL\r
- )\r
-{\r
- LIST_ENTRY *Link;\r
- SMM_RSC_HANDLER_CALLBACK_ENTRY *CallbackEntry;\r
-\r
- //\r
- // Use atom operation to avoid the reentant of report.\r
- // If current status is not zero, then the function is reentrancy.\r
- //\r
- if (InterlockedCompareExchange32 (&mStatusCodeNestStatus, 0, 1) == 1) {\r
- return EFI_DEVICE_ERROR;\r
- }\r
-\r
- for (Link = GetFirstNode (&mCallbackListHead); !IsNull (&mCallbackListHead, Link); Link = GetNextNode (&mCallbackListHead, Link)) {\r
- CallbackEntry = CR (Link, SMM_RSC_HANDLER_CALLBACK_ENTRY, Node, SMM_RSC_HANDLER_CALLBACK_ENTRY_SIGNATURE);\r
-\r
- CallbackEntry->RscHandlerCallback (\r
- Type,\r
- Value,\r
- Instance,\r
- (EFI_GUID*)CallerId,\r
- Data\r
- );\r
-\r
- }\r
-\r
- //\r
- // Restore the nest status of report\r
- //\r
- InterlockedCompareExchange32 (&mStatusCodeNestStatus, 1, 0);\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-/**\r
- This SMM Status Code Handler routes status codes to Framework SMM Status Code Protocol.\r
- \r
- @param CodeType Indicates the type of status code being reported.\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\r
- classify the entity as well as an operation.\r
- @param Instance The enumeration of a hardware or software entity within\r
- the system. Valid instance numbers start with 1.\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\r
- different callers.\r
- @param Data This optional parameter may be used to pass additional data.\r
-\r
- @retval EFI_SUCCESS The function completed successfully.\r
- @retval EFI_DEVICE_ERROR The function should not be completed due to a device error.\r
-\r
-**/\r
-EFI_STATUS\r
-SmmStatusCodeHandler (\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
- return mFrameworkSmmStatusCode->ReportStatusCode (\r
- mFrameworkSmmStatusCode,\r
- CodeType,\r
- Value,\r
- Instance,\r
- CallerId,\r
- Data\r
- ); \r
-}\r
-\r
-/**\r
- Entry point of PI SMM Status Code Protocol on Framework SMM Status Code Protocol thunk driver.\r
-\r
- @param ImageHandle The firmware allocated handle for the EFI image.\r
- @param SystemTable A pointer to the EFI System Table.\r
- \r
- @retval EFI_SUCCESS The entry point is executed successfully.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-SmmStatusCodeThunkMain (\r
- IN EFI_HANDLE ImageHandle,\r
- IN EFI_SYSTEM_TABLE *SystemTable\r
- )\r
-{\r
- EFI_STATUS Status;\r
- EFI_HANDLE Handle;\r
-\r
- //\r
- // Locate Framework SMM Status Code Protocol in UEFI handle database.\r
- //\r
- Status = SystemTable->BootServices->LocateProtocol (\r
- &gEfiSmmStatusCodeProtocolGuid,\r
- NULL,\r
- (VOID **)&mFrameworkSmmStatusCode\r
- );\r
- ASSERT_EFI_ERROR (Status);\r
-\r
- //\r
- // Registers status code handler to route status codes into Framework SMM Status Code Protocol.\r
- //\r
- Register (SmmStatusCodeHandler);\r
-\r
- Handle = NULL;\r
- \r
- //\r
- // Install SmmRscHandler Protocol\r
- //\r
- Status = gSmst->SmmInstallProtocolInterface (\r
- &Handle,\r
- &gEfiSmmRscHandlerProtocolGuid,\r
- EFI_NATIVE_INTERFACE,\r
- &mSmmRscHandlerProtocol\r
- );\r
- ASSERT_EFI_ERROR (Status);\r
-\r
- //\r
- // Install SmmStatusCode Protocol\r
- //\r
- Status = gSmst->SmmInstallProtocolInterface (\r
- &Handle,\r
- &gEfiSmmStatusCodeProtocolGuid,\r
- EFI_NATIVE_INTERFACE,\r
- &mSmmStatusCodeProtocol\r
- );\r
- ASSERT_EFI_ERROR (Status);\r
-\r
- return EFI_SUCCESS;\r
-}\r
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