+\r
+//\r
+// Following are BDS Lib functions which contain all the code about setup browser reset reminder feature.\r
+// Setup Browser reset reminder feature is that an reset reminder will be given before user leaves the setup browser if\r
+// user change any option setting which needs a reset to be effective, and the reset will be applied according to the user selection.\r
+//\r
+\r
+VOID\r
+EnableResetReminderFeature (\r
+ VOID\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Enable the setup browser reset reminder feature.\r
+ This routine is used in platform tip. If the platform policy need the feature, use the routine to enable it.\r
+\r
+Arguments:\r
+\r
+ VOID\r
+\r
+Returns:\r
+\r
+ VOID\r
+\r
+--*/\r
+{\r
+ mFeaturerSwitch = TRUE;\r
+}\r
+\r
+VOID\r
+DisableResetReminderFeature (\r
+ VOID\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Disable the setup browser reset reminder feature.\r
+ This routine is used in platform tip. If the platform policy do not want the feature, use the routine to disable it.\r
+\r
+Arguments:\r
+\r
+ VOID\r
+\r
+Returns:\r
+\r
+ VOID\r
+\r
+--*/\r
+{\r
+ mFeaturerSwitch = FALSE;\r
+}\r
+\r
+VOID\r
+EnableResetRequired (\r
+ VOID\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Record the info that a reset is required.\r
+ A module boolean variable is used to record whether a reset is required.\r
+\r
+Arguments:\r
+\r
+ VOID\r
+\r
+Returns:\r
+\r
+ VOID\r
+\r
+--*/\r
+{\r
+ mResetRequired = TRUE;\r
+}\r
+\r
+VOID\r
+DisableResetRequired (\r
+ VOID\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Record the info that no reset is required.\r
+ A module boolean variable is used to record whether a reset is required.\r
+\r
+Arguments:\r
+\r
+ VOID\r
+\r
+Returns:\r
+\r
+ VOID\r
+\r
+--*/\r
+{\r
+ mResetRequired = FALSE;\r
+}\r
+\r
+BOOLEAN\r
+IsResetReminderFeatureEnable (\r
+ VOID\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Check whether platform policy enable the reset reminder feature. The default is enabled.\r
+\r
+Arguments:\r
+\r
+ VOID\r
+\r
+Returns:\r
+\r
+ VOID\r
+\r
+--*/\r
+{\r
+ return mFeaturerSwitch;\r
+}\r
+\r
+BOOLEAN\r
+IsResetRequired (\r
+ VOID\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Check if user changed any option setting which needs a system reset to be effective.\r
+\r
+Arguments:\r
+\r
+ VOID\r
+\r
+Returns:\r
+\r
+ VOID\r
+\r
+--*/\r
+{\r
+ return mResetRequired;\r
+}\r
+\r
+VOID\r
+SetupResetReminder (\r
+ VOID\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Check whether a reset is needed, and finish the reset reminder feature.\r
+ If a reset is needed, Popup a menu to notice user, and finish the feature\r
+ according to the user selection.\r
+\r
+Arguments:\r
+\r
+ VOID\r
+\r
+Returns:\r
+\r
+ VOID\r
+\r
+--*/\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_FORM_BROWSER_PROTOCOL *Browser;\r
+ EFI_INPUT_KEY Key;\r
+ CHAR16 *StringBuffer1;\r
+ CHAR16 *StringBuffer2;\r
+\r
+\r
+ //\r
+ //check any reset required change is applied? if yes, reset system\r
+ //\r
+ if (IsResetReminderFeatureEnable ()) {\r
+ if (IsResetRequired ()) {\r
+\r
+ Status = gBS->LocateProtocol (\r
+ &gEfiFormBrowserProtocolGuid,\r
+ NULL,\r
+ &Browser\r
+ );\r
+\r
+ ASSERT (Status != EFI_SUCCESS);\r
+\r
+ StringBuffer1 = AllocateZeroPool (MAX_STRING_LEN * sizeof (CHAR16));\r
+ ASSERT (StringBuffer1 != NULL);\r
+ StringBuffer2 = AllocateZeroPool (MAX_STRING_LEN * sizeof (CHAR16));\r
+ ASSERT (StringBuffer2 != NULL);\r
+ StrCpy (StringBuffer1, L"Configuration changed. Reset to apply it Now ? ");\r
+ StrCpy (StringBuffer2, L"Enter (YES) / Esc (NO)");\r
+ //\r
+ // Popup a menu to notice user\r
+ //\r
+ do {\r
+ Browser->CreatePopUp (2, TRUE, 0, NULL, &Key, StringBuffer1, StringBuffer2);\r
+ } while ((Key.ScanCode != SCAN_ESC) && (Key.UnicodeChar != CHAR_CARRIAGE_RETURN));\r
+\r
+ FreePool (StringBuffer1);\r
+ FreePool (StringBuffer2);\r
+ //\r
+ // If the user hits the YES Response key, reset\r
+ //\r
+ if ((Key.UnicodeChar == CHAR_CARRIAGE_RETURN)) {\r
+ gRT->ResetSystem (EfiResetCold, EFI_SUCCESS, 0, NULL);\r
+ }\r
+ gST->ConOut->ClearScreen (gST->ConOut);\r
+ }\r
+ }\r
+}\r
+\r
+EFI_STATUS\r
+BdsLibGetHiiHandles (\r
+ IN EFI_HII_PROTOCOL *Hii,\r
+ IN OUT UINT16 *HandleBufferLength,\r
+ OUT EFI_HII_HANDLE **HiiHandleBuffer\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Determines the handles that are currently active in the database.\r
+ It's the caller's responsibility to free handle buffer.\r
+\r
+Arguments:\r
+\r
+ This - A pointer to the EFI_HII_PROTOCOL instance.\r
+ HandleBufferLength - On input, a pointer to the length of the handle buffer. On output,\r
+ the length of the handle buffer that is required for the handles found.\r
+ HiiHandleBuffer - Pointer to an array of EFI_HII_PROTOCOL instances returned.\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - Get an array of EFI_HII_PROTOCOL instances successfully.\r
+ EFI_INVALID_PARAMETER - Hii is NULL.\r
+ EFI_NOT_FOUND - Database not found.\r
+\r
+--*/\r
+{\r
+ UINT16 TempBufferLength;\r
+ EFI_STATUS Status;\r
+\r
+ TempBufferLength = 0;\r
+\r
+ //\r
+ // Try to find the actual buffer size for HiiHandle Buffer.\r
+ //\r
+ Status = Hii->FindHandles (Hii, &TempBufferLength, *HiiHandleBuffer);\r
+\r
+ if (Status == EFI_BUFFER_TOO_SMALL) {\r
+ *HiiHandleBuffer = AllocateZeroPool (TempBufferLength);\r
+ Status = Hii->FindHandles (Hii, &TempBufferLength, *HiiHandleBuffer);\r
+ //\r
+ // we should not fail here.\r
+ //\r
+ ASSERT_EFI_ERROR (Status);\r
+ }\r
+\r
+ *HandleBufferLength = TempBufferLength;\r
+\r
+ return Status;\r
+\r
+}\r
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