[mirror_edk2.git] / EdkNt32Pkg / Dxe / PlatformBds / Generic / BootMaint / FileExplorer.c

/*++\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:\r
\r
  FileExplorer.c\r
    \r
AgBStract:\r
\r
  File explorer related functions.\r
\r
--*/\r
\r
#include "Generic/Bds.h"\r
#include "BootMaint.h"\r
#include "BdsPlatform.h"\r
\r
VOID\r
UpdateFileExplorePage (\r
  IN BMM_CALLBACK_DATA            *CallbackData,\r
  BM_MENU_OPTION                  *MenuOption\r
  )\r
/*++\r
Routine Description:\r
  Update the File Explore page.\r
\r
Arguments:\r
  MenuOption      - Pointer to menu options to display.\r
\r
Returns:\r
  None.\r
\r
--*/\r
{\r
  UINT8           *Location;\r
  UINTN           Index;\r
  BM_MENU_ENTRY   *NewMenuEntry;\r
  BM_FILE_CONTEXT *NewFileContext;\r
  FORM_ID         FormId;\r
\r
  NewMenuEntry    = NULL;\r
  NewFileContext  = NULL;\r
  FormId          = 0;\r
\r
  //\r
  // Clean up file explore page.\r
  //\r
  RefreshUpdateData (FALSE, 0, FALSE, 0, 0xff);\r
\r
  //\r
  // Remove all op-codes from dynamic page\r
  //\r
  CallbackData->Hii->UpdateForm (\r
                      CallbackData->Hii,\r
                      CallbackData->FeHiiHandle,\r
                      FORM_FILE_EXPLORER_ID,\r
                      FALSE,\r
                      UpdateData\r
                      );\r
\r
  RefreshUpdateData (TRUE, (EFI_PHYSICAL_ADDRESS) (UINTN) CallbackData->FeCallbackHandle, FALSE, 0, 0);\r
\r
  Location = (UINT8 *) &UpdateData->Data;\r
\r
  for (Index = 0; Index < MenuOption->MenuNumber; Index++) {\r
    NewMenuEntry    = BOpt_GetMenuEntry (MenuOption, Index);\r
    NewFileContext  = (BM_FILE_CONTEXT *) NewMenuEntry->VariableContext;\r
\r
    if (NewFileContext->IsBootLegacy) {\r
      continue;\r
    }\r
\r
    if ((NewFileContext->IsDir) || (BOOT_FROM_FILE_STATE == CallbackData->FeCurrentState)) {\r
      //\r
      // Create Text opcode for directory, also create Text opcode for file in BOOT_FROM_FILE_STATE.\r
      //\r
      CreateTextOpCode (\r
        NewMenuEntry->DisplayStringToken,\r
        STR_NULL_STRING,\r
        STR_NULL_STRING,\r
        EFI_IFR_FLAG_INTERACTIVE | EFI_IFR_FLAG_NV_ACCESS,\r
        (UINT16) (FILE_OPTION_OFFSET + Index),\r
        Location\r
        );\r
    } else {\r
      //\r
      // Create Goto opcode for file in ADD_BOOT_OPTION_STATE or ADD_DRIVER_OPTION_STATE.\r
      //\r
      if (ADD_BOOT_OPTION_STATE == CallbackData->FeCurrentState) {\r
        FormId = FORM_BOOT_ADD_DESCRIPTION_ID;\r
      } else if (ADD_DRIVER_OPTION_STATE == CallbackData->FeCurrentState) {\r
        FormId = FORM_DRIVER_ADD_FILE_DESCRIPTION_ID;\r
      }\r
\r
      CreateGotoOpCode (\r
        FormId,\r
        NewMenuEntry->DisplayStringToken,\r
        STRING_TOKEN (STR_NULL_STRING),\r
        EFI_IFR_FLAG_INTERACTIVE | EFI_IFR_FLAG_NV_ACCESS,\r
        (UINT16) (FILE_OPTION_OFFSET + Index),\r
        Location\r
        );\r
    }\r
\r
    UpdateData->DataCount++;\r
    Location = Location + ((EFI_IFR_OP_HEADER *) Location)->Length;\r
  }\r
\r
  CallbackData->Hii->UpdateForm (\r
                      CallbackData->Hii,\r
                      CallbackData->FeHiiHandle,\r
                      FORM_FILE_EXPLORER_ID,\r
                      TRUE,\r
                      UpdateData\r
                      );\r
}\r
\r
BOOLEAN\r
UpdateFileExplorer (\r
  IN BMM_CALLBACK_DATA            *CallbackData,\r
  IN UINT16                       KeyValue\r
  )\r
/*++\r
\r
Routine Description:\r
  Update the file explower page with the refershed file system.\r
\r
Arguments:\r
  CallbackData  -   BMM context data\r
  KeyValue        - Key value to identify the type of data to expect.\r
\r
Returns:\r
  TRUE          - Inform the caller to create a callback packet to exit file explorer.\r
  FALSE         - Indicate that there is no need to exit file explorer.\r
\r
--*/\r
{\r
  UINT16          FileOptionMask;\r
  BM_MENU_ENTRY   *NewMenuEntry;\r
  BM_FILE_CONTEXT *NewFileContext;\r
  FORM_ID         FormId;\r
  BOOLEAN         ExitFileExplorer;\r
\r
  NewMenuEntry      = NULL;\r
  NewFileContext    = NULL;\r
  ExitFileExplorer  = FALSE;\r
\r
  FileOptionMask    = (UINT16) (FILE_OPTION_MASK & KeyValue);\r
\r
  if (UNKNOWN_CONTEXT == CallbackData->FeDisplayContext) {\r
    //\r
    // First in, display file system.\r
    //\r
    BOpt_FreeMenu (&FsOptionMenu);\r
    BOpt_FindFileSystem (CallbackData);\r
    CreateMenuStringToken (CallbackData, CallbackData->FeHiiHandle, &FsOptionMenu);\r
\r
    UpdateFileExplorePage (CallbackData, &FsOptionMenu);\r
\r
    CallbackData->FeDisplayContext = FILE_SYSTEM;\r
  } else {\r
    if (FILE_SYSTEM == CallbackData->FeDisplayContext) {\r
      NewMenuEntry = BOpt_GetMenuEntry (&FsOptionMenu, FileOptionMask);\r
    } else if (DIRECTORY == CallbackData->FeDisplayContext) {\r
      NewMenuEntry = BOpt_GetMenuEntry (&DirectoryMenu, FileOptionMask);\r
    }\r
\r
    CallbackData->FeDisplayContext  = DIRECTORY;\r
\r
    NewFileContext                  = (BM_FILE_CONTEXT *) NewMenuEntry->VariableContext;\r
\r
    if (NewFileContext->IsDir ) {\r
      RemoveEntryList (&NewMenuEntry->Link);\r
      BOpt_FreeMenu (&DirectoryMenu);\r
      BOpt_FindFiles (CallbackData, NewMenuEntry);\r
      CreateMenuStringToken (CallbackData, CallbackData->FeHiiHandle, &DirectoryMenu);\r
      BOpt_DestroyMenuEntry (NewMenuEntry);\r
\r
      UpdateFileExplorePage (CallbackData, &DirectoryMenu);\r
\r
    } else {\r
      switch (CallbackData->FeCurrentState) {\r
      case BOOT_FROM_FILE_STATE:\r
        //\r
        // Here boot from file\r
        //\r
        BootThisFile (NewFileContext);\r
        ExitFileExplorer = TRUE;\r
        break;\r
\r
      case ADD_BOOT_OPTION_STATE:\r
      case ADD_DRIVER_OPTION_STATE:\r
        if (ADD_BOOT_OPTION_STATE == CallbackData->FeCurrentState) {\r
          FormId = FORM_BOOT_ADD_DESCRIPTION_ID;\r
        } else {\r
          FormId = FORM_DRIVER_ADD_FILE_DESCRIPTION_ID;\r
        }\r
\r
        CallbackData->MenuEntry = NewMenuEntry;\r
        CallbackData->LoadContext->FilePathList = ((BM_FILE_CONTEXT *) (CallbackData->MenuEntry->VariableContext))->DevicePath;\r
\r
        //\r
        // Clean up file explore page.\r
        //\r
        RefreshUpdateData (FALSE, 0, FALSE, 0, 1);\r
\r
        //\r
        // Remove the Subtitle op-code.\r
        //\r
        CallbackData->Hii->UpdateForm (\r
                            CallbackData->Hii,\r
                            CallbackData->FeHiiHandle,\r
                            FormId,\r
                            FALSE,\r
                            UpdateData\r
                            );\r
\r
        //\r
        // Create Subtitle op-code for the display string of the option.\r
        //\r
        RefreshUpdateData (TRUE, (EFI_PHYSICAL_ADDRESS) (UINTN) CallbackData->FeCallbackHandle, FALSE, 0, 1);\r
\r
        CreateSubTitleOpCode (\r
          NewMenuEntry->DisplayStringToken,\r
          &UpdateData->Data\r
          );\r
\r
        CallbackData->Hii->UpdateForm (\r
                            CallbackData->Hii,\r
                            CallbackData->FeHiiHandle,\r
                            FormId,\r
                            TRUE,\r
                            UpdateData\r
                            );\r
        break;\r
\r
      default:\r
        break;\r
      }\r
    }\r
  }\r
\r
  return ExitFileExplorer;\r
}\r
\r
EFI_STATUS\r
EFIAPI\r
FileExplorerCallback (\r
  IN EFI_FORM_CALLBACK_PROTOCOL       *This,\r
  IN UINT16                           KeyValue,\r
  IN EFI_IFR_DATA_ARRAY               *Data,\r
  OUT EFI_HII_CALLBACK_PACKET         **Packet\r
  )\r
/*++\r
Routine Description:\r
  Callback Function for file exploration and file interaction.\r
\r
Arguments:\r
  This            - File explorer callback protocol pointer.     \r
  KeyValue        - Key value to identify the type of data to expect.\r
  Data            - A pointer to the data being sent to the original exporting driver.\r
  Packet          - A pointer to a packet of information which a driver passes back to the browser.\r
\r
Returns:\r
  EFI_SUCCESS     - Callback ended successfully.\r
  Others          - Contain some errors.\r
  \r
--*/\r
{\r
  BMM_CALLBACK_DATA     *Private;\r
  FILE_EXPLORER_NV_DATA *NvRamMap;\r
  EFI_STATUS            Status;\r
\r
  Status                          = EFI_SUCCESS;\r
  Private                         = FE_CALLBACK_DATA_FROM_THIS (This);\r
  UpdateData->FormCallbackHandle  = (EFI_PHYSICAL_ADDRESS) (UINTN) Private->FeCallbackHandle;\r
  NvRamMap                        = (FILE_EXPLORER_NV_DATA *) Data->NvRamMap;\r
\r
  if (KEY_VALUE_SAVE_AND_EXIT == KeyValue) {\r
    //\r
    // Apply changes and exit formset.\r
    //\r
    if (ADD_BOOT_OPTION_STATE == Private->FeCurrentState) {\r
      Status = Var_UpdateBootOption (Private, NvRamMap);\r
      if (EFI_ERROR (Status)) {\r
        return Status;\r
      }\r
\r
      BOpt_GetBootOptions (Private);\r
      CreateMenuStringToken (Private, Private->FeHiiHandle, &BootOptionMenu);\r
    } else if (ADD_DRIVER_OPTION_STATE == Private->FeCurrentState) {\r
      Status = Var_UpdateDriverOption (\r
                Private,\r
                Private->FeHiiHandle,\r
                NvRamMap->DescriptionData,\r
                NvRamMap->OptionalData,\r
                NvRamMap->ForceReconnect\r
                );\r
      if (EFI_ERROR (Status)) {\r
        return Status;\r
      }\r
\r
      BOpt_GetDriverOptions (Private);\r
      CreateMenuStringToken (Private, Private->FeHiiHandle, &DriverOptionMenu);\r
    }\r
\r
    CreateCallbackPacket (Packet, EXIT_REQUIRED | NV_NOT_CHANGED);\r
  } else if (KEY_VALUE_NO_SAVE_AND_EXIT == KeyValue) {\r
    //\r
    // Discard changes and exit formset.\r
    //\r
    NvRamMap->OptionalData[0]     = 0x0000;\r
    NvRamMap->DescriptionData[0]  = 0x0000;\r
    CreateCallbackPacket (Packet, EXIT_REQUIRED | NV_NOT_CHANGED);\r
  } else if (KeyValue < FILE_OPTION_OFFSET) {\r
    //\r
    // Exit File Explorer formset.\r
    //\r
    CreateCallbackPacket (Packet, EXIT_REQUIRED);\r
  } else {\r
    if (UpdateFileExplorer (Private, KeyValue)) {\r
      CreateCallbackPacket (Packet, EXIT_REQUIRED);\r
    }\r
  }\r
\r
  return Status;\r
}\r
Commit	Line	Data
878ddf1f	1	/*++\r
	2	\r
	3	Copyright (c) 2006, Intel Corporation \r
	4	All rights reserved. This program and the accompanying materials \r
	5	are licensed and made available under the terms and conditions of the BSD License \r
	6	which accompanies this distribution. The full text of the license may be found at \r
	7	http://opensource.org/licenses/bsd-license.php \r
	8	\r
	9	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
	10	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
	11	\r
	12	Module Name:\r
	13	\r
	14	FileExplorer.c\r
	15	\r
	16	AgBStract:\r
	17	\r
	18	File explorer related functions.\r
	19	\r
	20	--*/\r
	21	\r
	22	#include "Generic/Bds.h"\r
a0a1e5aa	23	#include "BootMaint.h"\r
878ddf1f	24	#include "BdsPlatform.h"\r
	25	\r
	26	VOID\r
	27	UpdateFileExplorePage (\r
	28	IN BMM_CALLBACK_DATA *CallbackData,\r
	29	BM_MENU_OPTION *MenuOption\r
	30	)\r
	31	/*++\r
	32	Routine Description:\r
	33	Update the File Explore page.\r
	34	\r
	35	Arguments:\r
	36	MenuOption - Pointer to menu options to display.\r
	37	\r
	38	Returns:\r
	39	None.\r
	40	\r
	41	--*/\r
	42	{\r
	43	UINT8 *Location;\r
	44	UINTN Index;\r
	45	BM_MENU_ENTRY *NewMenuEntry;\r
	46	BM_FILE_CONTEXT *NewFileContext;\r
	47	FORM_ID FormId;\r
	48	\r
	49	NewMenuEntry = NULL;\r
	50	NewFileContext = NULL;\r
	51	FormId = 0;\r
	52	\r
	53	//\r
	54	// Clean up file explore page.\r
	55	//\r
	56	RefreshUpdateData (FALSE, 0, FALSE, 0, 0xff);\r
	57	\r
	58	//\r
	59	// Remove all op-codes from dynamic page\r
	60	//\r
	61	CallbackData->Hii->UpdateForm (\r
	62	CallbackData->Hii,\r
	63	CallbackData->FeHiiHandle,\r
	64	FORM_FILE_EXPLORER_ID,\r
	65	FALSE,\r
	66	UpdateData\r
	67	);\r
	68	\r
	69	RefreshUpdateData (TRUE, (EFI_PHYSICAL_ADDRESS) (UINTN) CallbackData->FeCallbackHandle, FALSE, 0, 0);\r
	70	\r
	71	Location = (UINT8 *) &UpdateData->Data;\r
	72	\r
	73	for (Index = 0; Index < MenuOption->MenuNumber; Index++) {\r
	74	NewMenuEntry = BOpt_GetMenuEntry (MenuOption, Index);\r
	75	NewFileContext = (BM_FILE_CONTEXT *) NewMenuEntry->VariableContext;\r
	76	\r
	77	if (NewFileContext->IsBootLegacy) {\r
	78	continue;\r
	79	}\r
	80	\r
	81	if ((NewFileContext->IsDir) \|\| (BOOT_FROM_FILE_STATE == CallbackData->FeCurrentState)) {\r
	82	//\r
	83	// Create Text opcode for directory, also create Text opcode for file in BOOT_FROM_FILE_STATE.\r
	84	//\r
	85	CreateTextOpCode (\r
	86	NewMenuEntry->DisplayStringToken,\r
	87	STR_NULL_STRING,\r
88	STR_NULL_STRING,\r
89	EFI_IFR_FLAG_INTERACTIVE \| EFI_IFR_FLAG_NV_ACCESS,\r
90	(UINT16) (FILE_OPTION_OFFSET + Index),\r
91	Location\r
92	);\r
93	} else {\r
94	//\r
95	// Create Goto opcode for file in ADD_BOOT_OPTION_STATE or ADD_DRIVER_OPTION_STATE.\r
96	//\r
97	if (ADD_BOOT_OPTION_STATE == CallbackData->FeCurrentState) {\r
98	FormId = FORM_BOOT_ADD_DESCRIPTION_ID;\r
99	} else if (ADD_DRIVER_OPTION_STATE == CallbackData->FeCurrentState) {\r
100	FormId = FORM_DRIVER_ADD_FILE_DESCRIPTION_ID;\r
101	}\r
102	\r
103	CreateGotoOpCode (\r
104	FormId,\r
105	NewMenuEntry->DisplayStringToken,\r
106	STRING_TOKEN (STR_NULL_STRING),\r
107	EFI_IFR_FLAG_INTERACTIVE \| EFI_IFR_FLAG_NV_ACCESS,\r
108	(UINT16) (FILE_OPTION_OFFSET + Index),\r
109	Location\r
110	);\r
111	}\r
112	\r
113	UpdateData->DataCount++;\r
114	Location = Location + ((EFI_IFR_OP_HEADER *) Location)->Length;\r
115	}\r
116	\r
117	CallbackData->Hii->UpdateForm (\r
118	CallbackData->Hii,\r
119	CallbackData->FeHiiHandle,\r
120	FORM_FILE_EXPLORER_ID,\r
121	TRUE,\r
122	UpdateData\r
123	);\r
124	}\r
125	\r
126	BOOLEAN\r
127	UpdateFileExplorer (\r
128	IN BMM_CALLBACK_DATA *CallbackData,\r
129	IN UINT16 KeyValue\r
130	)\r
131	/*++\r
132	\r
133	Routine Description:\r
134	Update the file explower page with the refershed file system.\r
135	\r
136	Arguments:\r
137	CallbackData - BMM context data\r
138	KeyValue - Key value to identify the type of data to expect.\r
139	\r
140	Returns:\r
141	TRUE - Inform the caller to create a callback packet to exit file explorer.\r
142	FALSE - Indicate that there is no need to exit file explorer.\r
143	\r
144	--*/\r
145	{\r
146	UINT16 FileOptionMask;\r
147	BM_MENU_ENTRY *NewMenuEntry;\r
148	BM_FILE_CONTEXT *NewFileContext;\r
149	FORM_ID FormId;\r
150	BOOLEAN ExitFileExplorer;\r
151	\r
152	NewMenuEntry = NULL;\r
153	NewFileContext = NULL;\r
154	ExitFileExplorer = FALSE;\r
155	\r
156	FileOptionMask = (UINT16) (FILE_OPTION_MASK & KeyValue);\r
157	\r
158	if (UNKNOWN_CONTEXT == CallbackData->FeDisplayContext) {\r
159	//\r
160	// First in, display file system.\r
161	//\r
162	BOpt_FreeMenu (&FsOptionMenu);\r
163	BOpt_FindFileSystem (CallbackData);\r
164	CreateMenuStringToken (CallbackData, CallbackData->FeHiiHandle, &FsOptionMenu);\r
165	\r
166	UpdateFileExplorePage (CallbackData, &FsOptionMenu);\r
167	\r
168	CallbackData->FeDisplayContext = FILE_SYSTEM;\r
169	} else {\r
170	if (FILE_SYSTEM == CallbackData->FeDisplayContext) {\r
171	NewMenuEntry = BOpt_GetMenuEntry (&FsOptionMenu, FileOptionMask);\r
172	} else if (DIRECTORY == CallbackData->FeDisplayContext) {\r
173	NewMenuEntry = BOpt_GetMenuEntry (&DirectoryMenu, FileOptionMask);\r
174	}\r
175	\r
176	CallbackData->FeDisplayContext = DIRECTORY;\r
177	\r
178	NewFileContext = (BM_FILE_CONTEXT *) NewMenuEntry->VariableContext;\r
179	\r
180	if (NewFileContext->IsDir ) {\r
181	RemoveEntryList (&NewMenuEntry->Link);\r
182	BOpt_FreeMenu (&DirectoryMenu);\r
183	BOpt_FindFiles (CallbackData, NewMenuEntry);\r
184	CreateMenuStringToken (CallbackData, CallbackData->FeHiiHandle, &DirectoryMenu);\r
185	BOpt_DestroyMenuEntry (NewMenuEntry);\r
186	\r
187	UpdateFileExplorePage (CallbackData, &DirectoryMenu);\r
188	\r
189	} else {\r
190	switch (CallbackData->FeCurrentState) {\r
191	case BOOT_FROM_FILE_STATE:\r
192	//\r
193	// Here boot from file\r
194	//\r
195	BootThisFile (NewFileContext);\r
196	ExitFileExplorer = TRUE;\r
197	break;\r
198	\r
199	case ADD_BOOT_OPTION_STATE:\r
200	case ADD_DRIVER_OPTION_STATE:\r
201	if (ADD_BOOT_OPTION_STATE == CallbackData->FeCurrentState) {\r
202	FormId = FORM_BOOT_ADD_DESCRIPTION_ID;\r
203	} else {\r
204	FormId = FORM_DRIVER_ADD_FILE_DESCRIPTION_ID;\r
205	}\r
206	\r
207	CallbackData->MenuEntry = NewMenuEntry;\r
208	CallbackData->LoadContext->FilePathList = ((BM_FILE_CONTEXT *) (CallbackData->MenuEntry->VariableContext))->DevicePath;\r
209	\r
210	//\r
211	// Clean up file explore page.\r
212	//\r
213	RefreshUpdateData (FALSE, 0, FALSE, 0, 1);\r
214	\r
215	//\r
216	// Remove the Subtitle op-code.\r
217	//\r
218	CallbackData->Hii->UpdateForm (\r
219	CallbackData->Hii,\r
220	CallbackData->FeHiiHandle,\r
221	FormId,\r
222	FALSE,\r
223	UpdateData\r
224	);\r
225	\r
226	//\r
227	// Create Subtitle op-code for the display string of the option.\r
228	//\r
229	RefreshUpdateData (TRUE, (EFI_PHYSICAL_ADDRESS) (UINTN) CallbackData->FeCallbackHandle, FALSE, 0, 1);\r
230	\r
231	CreateSubTitleOpCode (\r
232	NewMenuEntry->DisplayStringToken,\r
233	&UpdateData->Data\r
234	);\r
235	\r
236	CallbackData->Hii->UpdateForm (\r
237	CallbackData->Hii,\r
238	CallbackData->FeHiiHandle,\r
239	FormId,\r
240	TRUE,\r
241	UpdateData\r
242	);\r
243	break;\r
244	\r
245	default:\r
246	break;\r
247	}\r
248	}\r
249	}\r
250	\r
251	return ExitFileExplorer;\r
252	}\r
253	\r
254	EFI_STATUS\r
255	EFIAPI\r
256	FileExplorerCallback (\r
257	IN EFI_FORM_CALLBACK_PROTOCOL *This,\r
258	IN UINT16 KeyValue,\r
259	IN EFI_IFR_DATA_ARRAY *Data,\r
260	OUT EFI_HII_CALLBACK_PACKET **Packet\r
261	)\r
262	/*++\r
263	Routine Description:\r
264	Callback Function for file exploration and file interaction.\r
265	\r
266	Arguments:\r
267	This - File explorer callback protocol pointer. \r
268	KeyValue - Key value to identify the type of data to expect.\r
269	Data - A pointer to the data being sent to the original exporting driver.\r
270	Packet - A pointer to a packet of information which a driver passes back to the browser.\r
271	\r
272	Returns:\r
273	EFI_SUCCESS - Callback ended successfully.\r
274	Others - Contain some errors.\r
275	\r
276	--*/\r
277	{\r
278	BMM_CALLBACK_DATA *Private;\r
279	FILE_EXPLORER_NV_DATA *NvRamMap;\r
280	EFI_STATUS Status;\r
281	\r
282	Status = EFI_SUCCESS;\r
283	Private = FE_CALLBACK_DATA_FROM_THIS (This);\r
284	UpdateData->FormCallbackHandle = (EFI_PHYSICAL_ADDRESS) (UINTN) Private->FeCallbackHandle;\r
285	NvRamMap = (FILE_EXPLORER_NV_DATA *) Data->NvRamMap;\r
286	\r
287	if (KEY_VALUE_SAVE_AND_EXIT == KeyValue) {\r
288	//\r
289	// Apply changes and exit formset.\r
290	//\r
291	if (ADD_BOOT_OPTION_STATE == Private->FeCurrentState) {\r
292	Status = Var_UpdateBootOption (Private, NvRamMap);\r
293	if (EFI_ERROR (Status)) {\r
294	return Status;\r
295	}\r
296	\r
297	BOpt_GetBootOptions (Private);\r
298	CreateMenuStringToken (Private, Private->FeHiiHandle, &BootOptionMenu);\r
299	} else if (ADD_DRIVER_OPTION_STATE == Private->FeCurrentState) {\r
300	Status = Var_UpdateDriverOption (\r
301	Private,\r
302	Private->FeHiiHandle,\r
303	NvRamMap->DescriptionData,\r
304	NvRamMap->OptionalData,\r
305	NvRamMap->ForceReconnect\r
306	);\r
307	if (EFI_ERROR (Status)) {\r
308	return Status;\r
309	}\r
310	\r
311	BOpt_GetDriverOptions (Private);\r
312	CreateMenuStringToken (Private, Private->FeHiiHandle, &DriverOptionMenu);\r
313	}\r
314	\r
315	CreateCallbackPacket (Packet, EXIT_REQUIRED \| NV_NOT_CHANGED);\r
316	} else if (KEY_VALUE_NO_SAVE_AND_EXIT == KeyValue) {\r
317	//\r
318	// Discard changes and exit formset.\r
319	//\r
320	NvRamMap->OptionalData[0] = 0x0000;\r
321	NvRamMap->DescriptionData[0] = 0x0000;\r
322	CreateCallbackPacket (Packet, EXIT_REQUIRED \| NV_NOT_CHANGED);\r
323	} else if (KeyValue < FILE_OPTION_OFFSET) {\r
324	//\r
325	// Exit File Explorer formset.\r
326	//\r
327	CreateCallbackPacket (Packet, EXIT_REQUIRED);\r
328	} else {\r
329	if (UpdateFileExplorer (Private, KeyValue)) {\r
330	CreateCallbackPacket (Packet, EXIT_REQUIRED);\r
331	}\r
332	}\r
333	\r
334	return Status;\r
335	}\r