+ //\r
+ // Initialize Bits efi varstore configuration data\r
+ //\r
+ BitsVarStoreConfig = &mPrivateData->BitsVarStoreConfig;\r
+ ZeroMem (BitsVarStoreConfig, sizeof (MY_EFI_BITS_VARSTORE_DATA));\r
+\r
+ ConfigRequestHdr = HiiConstructConfigHdr (&gDriverSampleFormSetGuid, MyEfiBitVar, DriverHandle[0]);\r
+ ASSERT (ConfigRequestHdr != NULL);\r
+\r
+ BufferSize = sizeof (MY_EFI_BITS_VARSTORE_DATA);\r
+ Status = gRT->GetVariable (MyEfiBitVar, &gDriverSampleFormSetGuid, NULL, &BufferSize, BitsVarStoreConfig);\r
+ if (EFI_ERROR (Status)) {\r
+ //\r
+ // Store zero data to EFI variable Storage.\r
+ //\r
+ Status = gRT->SetVariable(\r
+ MyEfiBitVar,\r
+ &gDriverSampleFormSetGuid,\r
+ EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,\r
+ sizeof (MY_EFI_BITS_VARSTORE_DATA),\r
+ BitsVarStoreConfig\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ DriverSampleUnload (ImageHandle);\r
+ return Status;\r
+ }\r
+ //\r
+ // EFI variable for NV config doesn't exit, we should build this variable\r
+ // based on default values stored in IFR\r
+ //\r
+ ActionFlag = HiiSetToDefaults (ConfigRequestHdr, EFI_HII_DEFAULT_CLASS_STANDARD);\r
+ if (!ActionFlag) {\r
+ DriverSampleUnload (ImageHandle);\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+ } else {\r
+ //\r
+ // EFI variable does exist and Validate Current Setting\r
+ //\r
+ ActionFlag = HiiValidateSettings (ConfigRequestHdr);\r
+ if (!ActionFlag) {\r
+ DriverSampleUnload (ImageHandle);\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+ }\r
+ FreePool (ConfigRequestHdr);\r
+\r
+ //\r
+ // Initialize Union efi varstore configuration data\r
+ //\r
+ UnionConfig = &mPrivateData->UnionConfig;\r
+ ZeroMem (UnionConfig, sizeof (MY_EFI_UNION_DATA));\r
+\r
+ ConfigRequestHdr = HiiConstructConfigHdr (&gDriverSampleFormSetGuid, MyEfiUnionVar, DriverHandle[0]);\r
+ ASSERT (ConfigRequestHdr != NULL);\r
+\r
+ BufferSize = sizeof (MY_EFI_UNION_DATA);\r
+ Status = gRT->GetVariable (MyEfiUnionVar, &gDriverSampleFormSetGuid, NULL, &BufferSize, UnionConfig);\r
+ if (EFI_ERROR (Status)) {\r
+ //\r
+ // Store zero data to EFI variable Storage.\r
+ //\r
+ Status = gRT->SetVariable(\r
+ MyEfiUnionVar,\r
+ &gDriverSampleFormSetGuid,\r
+ EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,\r
+ sizeof (MY_EFI_UNION_DATA),\r
+ UnionConfig\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ DriverSampleUnload (ImageHandle);\r
+ return Status;\r
+ }\r
+ //\r
+ // EFI variable for NV config doesn't exit, we should build this variable\r
+ // based on default values stored in IFR\r
+ //\r
+ ActionFlag = HiiSetToDefaults (ConfigRequestHdr, EFI_HII_DEFAULT_CLASS_STANDARD);\r
+ if (!ActionFlag) {\r
+ DriverSampleUnload (ImageHandle);\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+ } else {\r
+ //\r
+ // EFI variable does exist and Validate Current Setting\r
+ //\r
+ ActionFlag = HiiValidateSettings (ConfigRequestHdr);\r
+ if (!ActionFlag) {\r
+ DriverSampleUnload (ImageHandle);\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+ }\r
+ FreePool (ConfigRequestHdr);\r
+\r