[mirror_edk2.git] / EdkModulePkg / Library / EdkGenericPlatformBdsLib / 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 "Bds.h"\r
#include "BootMaint.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
  EFI_STATUS      Status;\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
      Status = BOpt_FindFiles (CallbackData, NewMenuEntry);\r
       if (EFI_ERROR (Status)) {\r
         ExitFileExplorer = TRUE;\r
         goto exit;\r
       }\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
exit:\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
52657feb	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 "Bds.h"\r
	23	#include "BootMaint.h"\r
	24	\r
	25	VOID\r
	26	UpdateFileExplorePage (\r
	27	IN BMM_CALLBACK_DATA *CallbackData,\r
	28	BM_MENU_OPTION *MenuOption\r
	29	)\r
	30	/*++\r
	31	Routine Description:\r
	32	Update the File Explore page.\r
	33	\r
	34	Arguments:\r
	35	MenuOption - Pointer to menu options to display.\r
	36	\r
	37	Returns:\r
	38	None.\r
	39	\r
	40	--*/\r
	41	{\r
	42	UINT8 *Location;\r
	43	UINTN Index;\r
	44	BM_MENU_ENTRY *NewMenuEntry;\r
	45	BM_FILE_CONTEXT *NewFileContext;\r
	46	FORM_ID FormId;\r
	47	\r
	48	NewMenuEntry = NULL;\r
	49	NewFileContext = NULL;\r
	50	FormId = 0;\r
	51	\r
	52	//\r
	53	// Clean up file explore page.\r
	54	//\r
	55	RefreshUpdateData (FALSE, 0, FALSE, 0, 0xff);\r
	56	\r
	57	//\r
	58	// Remove all op-codes from dynamic page\r
	59	//\r
	60	CallbackData->Hii->UpdateForm (\r
	61	CallbackData->Hii,\r
	62	CallbackData->FeHiiHandle,\r
	63	FORM_FILE_EXPLORER_ID,\r
	64	FALSE,\r
65	UpdateData\r
66	);\r
67	\r
68	RefreshUpdateData (TRUE, (EFI_PHYSICAL_ADDRESS) (UINTN) CallbackData->FeCallbackHandle, FALSE, 0, 0);\r
69	\r
70	Location = (UINT8 *) &UpdateData->Data;\r
71	\r
72	for (Index = 0; Index < MenuOption->MenuNumber; Index++) {\r
73	NewMenuEntry = BOpt_GetMenuEntry (MenuOption, Index);\r
74	NewFileContext = (BM_FILE_CONTEXT *) NewMenuEntry->VariableContext;\r
75	\r
76	if (NewFileContext->IsBootLegacy) {\r
77	continue;\r
78	}\r
79	\r
80	if ((NewFileContext->IsDir) \|\| (BOOT_FROM_FILE_STATE == CallbackData->FeCurrentState)) {\r
81	//\r
82	// Create Text opcode for directory, also create Text opcode for file in BOOT_FROM_FILE_STATE.\r
83	//\r
84	CreateTextOpCode (\r
85	NewMenuEntry->DisplayStringToken,\r
86	STR_NULL_STRING,\r
87	STR_NULL_STRING,\r
88	EFI_IFR_FLAG_INTERACTIVE \| EFI_IFR_FLAG_NV_ACCESS,\r
89	(UINT16) (FILE_OPTION_OFFSET + Index),\r
90	Location\r
91	);\r
92	} else {\r
93	//\r
94	// Create Goto opcode for file in ADD_BOOT_OPTION_STATE or ADD_DRIVER_OPTION_STATE.\r
95	//\r
96	if (ADD_BOOT_OPTION_STATE == CallbackData->FeCurrentState) {\r
97	FormId = FORM_BOOT_ADD_DESCRIPTION_ID;\r
98	} else if (ADD_DRIVER_OPTION_STATE == CallbackData->FeCurrentState) {\r
99	FormId = FORM_DRIVER_ADD_FILE_DESCRIPTION_ID;\r
100	}\r
101	\r
102	CreateGotoOpCode (\r
103	FormId,\r
104	NewMenuEntry->DisplayStringToken,\r
105	STRING_TOKEN (STR_NULL_STRING),\r
106	EFI_IFR_FLAG_INTERACTIVE \| EFI_IFR_FLAG_NV_ACCESS,\r
107	(UINT16) (FILE_OPTION_OFFSET + Index),\r
108	Location\r
109	);\r
110	}\r
111	\r
112	UpdateData->DataCount++;\r
113	Location = Location + ((EFI_IFR_OP_HEADER *) Location)->Length;\r
114	}\r
115	\r
116	CallbackData->Hii->UpdateForm (\r
117	CallbackData->Hii,\r
118	CallbackData->FeHiiHandle,\r
119	FORM_FILE_EXPLORER_ID,\r
120	TRUE,\r
121	UpdateData\r
122	);\r
123	}\r
124	\r
125	BOOLEAN\r
126	UpdateFileExplorer (\r
127	IN BMM_CALLBACK_DATA *CallbackData,\r
128	IN UINT16 KeyValue\r
129	)\r
130	/*++\r
131	\r
132	Routine Description:\r
133	Update the file explower page with the refershed file system.\r
134	\r
135	Arguments:\r
136	CallbackData - BMM context data\r
137	KeyValue - Key value to identify the type of data to expect.\r
138	\r
139	Returns:\r
140	TRUE - Inform the caller to create a callback packet to exit file explorer.\r
141	FALSE - Indicate that there is no need to exit file explorer.\r
142	\r
143	--*/\r
144	{\r
145	UINT16 FileOptionMask;\r
146	BM_MENU_ENTRY *NewMenuEntry;\r
147	BM_FILE_CONTEXT *NewFileContext;\r
148	FORM_ID FormId;\r
149	BOOLEAN ExitFileExplorer;\r
150	EFI_STATUS Status;\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	Status = BOpt_FindFiles (CallbackData, NewMenuEntry);\r
184	if (EFI_ERROR (Status)) {\r
185	ExitFileExplorer = TRUE;\r
186	goto exit;\r
187	}\r
188	CreateMenuStringToken (CallbackData, CallbackData->FeHiiHandle, &DirectoryMenu);\r
189	BOpt_DestroyMenuEntry (NewMenuEntry);\r
190	\r
191	UpdateFileExplorePage (CallbackData, &DirectoryMenu);\r
192	\r
193	} else {\r
194	switch (CallbackData->FeCurrentState) {\r
195	case BOOT_FROM_FILE_STATE:\r
196	//\r
197	// Here boot from file\r
198	//\r
199	BootThisFile (NewFileContext);\r
200	ExitFileExplorer = TRUE;\r
201	break;\r
202	\r
203	case ADD_BOOT_OPTION_STATE:\r
204	case ADD_DRIVER_OPTION_STATE:\r
205	if (ADD_BOOT_OPTION_STATE == CallbackData->FeCurrentState) {\r
206	FormId = FORM_BOOT_ADD_DESCRIPTION_ID;\r
207	} else {\r
208	FormId = FORM_DRIVER_ADD_FILE_DESCRIPTION_ID;\r
209	}\r
210	\r
211	CallbackData->MenuEntry = NewMenuEntry;\r
212	CallbackData->LoadContext->FilePathList = ((BM_FILE_CONTEXT *) (CallbackData->MenuEntry->VariableContext))->DevicePath;\r
213	\r
214	//\r
215	// Clean up file explore page.\r
216	//\r
217	RefreshUpdateData (FALSE, 0, FALSE, 0, 1);\r
218	\r
219	//\r
220	// Remove the Subtitle op-code.\r
221	//\r
222	CallbackData->Hii->UpdateForm (\r
223	CallbackData->Hii,\r
224	CallbackData->FeHiiHandle,\r
225	FormId,\r
226	FALSE,\r
227	UpdateData\r
228	);\r
229	\r
230	//\r
231	// Create Subtitle op-code for the display string of the option.\r
232	//\r
233	RefreshUpdateData (TRUE, (EFI_PHYSICAL_ADDRESS) (UINTN) CallbackData->FeCallbackHandle, FALSE, 0, 1);\r
234	\r
235	CreateSubTitleOpCode (\r
236	NewMenuEntry->DisplayStringToken,\r
237	&UpdateData->Data\r
238	);\r
239	\r
240	CallbackData->Hii->UpdateForm (\r
241	CallbackData->Hii,\r
242	CallbackData->FeHiiHandle,\r
243	FormId,\r
244	TRUE,\r
245	UpdateData\r
246	);\r
247	break;\r
248	\r
249	default:\r
250	break;\r
251	}\r
252	}\r
253	}\r
254	exit:\r
255	return ExitFileExplorer;\r
256	}\r
257	\r
258	EFI_STATUS\r
259	EFIAPI\r
260	FileExplorerCallback (\r
261	IN EFI_FORM_CALLBACK_PROTOCOL *This,\r
262	IN UINT16 KeyValue,\r
263	IN EFI_IFR_DATA_ARRAY *Data,\r
264	OUT EFI_HII_CALLBACK_PACKET **Packet\r
265	)\r
266	/*++\r
267	Routine Description:\r
268	Callback Function for file exploration and file interaction.\r
269	\r
270	Arguments:\r
271	This - File explorer callback protocol pointer. \r
272	KeyValue - Key value to identify the type of data to expect.\r
273	Data - A pointer to the data being sent to the original exporting driver.\r
274	Packet - A pointer to a packet of information which a driver passes back to the browser.\r
275	\r
276	Returns:\r
277	EFI_SUCCESS - Callback ended successfully.\r
278	Others - Contain some errors.\r
279	\r
280	--*/\r
281	{\r
282	BMM_CALLBACK_DATA *Private;\r
283	FILE_EXPLORER_NV_DATA *NvRamMap;\r
284	EFI_STATUS Status;\r
285	\r
286	Status = EFI_SUCCESS;\r
287	Private = FE_CALLBACK_DATA_FROM_THIS (This);\r
288	UpdateData->FormCallbackHandle = (EFI_PHYSICAL_ADDRESS) (UINTN) Private->FeCallbackHandle;\r
289	NvRamMap = (FILE_EXPLORER_NV_DATA *) Data->NvRamMap;\r
290	\r
291	if (KEY_VALUE_SAVE_AND_EXIT == KeyValue) {\r
292	//\r
293	// Apply changes and exit formset.\r
294	//\r
295	if (ADD_BOOT_OPTION_STATE == Private->FeCurrentState) {\r
296	Status = Var_UpdateBootOption (Private, NvRamMap);\r
297	if (EFI_ERROR (Status)) {\r
298	return Status;\r
299	}\r
300	\r
301	BOpt_GetBootOptions (Private);\r
302	CreateMenuStringToken (Private, Private->FeHiiHandle, &BootOptionMenu);\r
303	} else if (ADD_DRIVER_OPTION_STATE == Private->FeCurrentState) {\r
304	Status = Var_UpdateDriverOption (\r
305	Private,\r
306	Private->FeHiiHandle,\r
307	NvRamMap->DescriptionData,\r
308	NvRamMap->OptionalData,\r
309	NvRamMap->ForceReconnect\r
310	);\r
311	if (EFI_ERROR (Status)) {\r
312	return Status;\r
313	}\r
314	\r
315	BOpt_GetDriverOptions (Private);\r
316	CreateMenuStringToken (Private, Private->FeHiiHandle, &DriverOptionMenu);\r
317	}\r
318	\r
319	CreateCallbackPacket (Packet, EXIT_REQUIRED \| NV_NOT_CHANGED);\r
320	} else if (KEY_VALUE_NO_SAVE_AND_EXIT == KeyValue) {\r
321	//\r
322	// Discard changes and exit formset.\r
323	//\r
324	NvRamMap->OptionalData[0] = 0x0000;\r
325	NvRamMap->DescriptionData[0] = 0x0000;\r
326	CreateCallbackPacket (Packet, EXIT_REQUIRED \| NV_NOT_CHANGED);\r
327	} else if (KeyValue < FILE_OPTION_OFFSET) {\r
328	//\r
329	// Exit File Explorer formset.\r
330	//\r
331	CreateCallbackPacket (Packet, EXIT_REQUIRED);\r
332	} else {\r
333	if (UpdateFileExplorer (Private, KeyValue)) {\r
334	CreateCallbackPacket (Packet, EXIT_REQUIRED);\r
335	}\r
336	}\r
337	\r
338	return Status;\r
339	}\r