[mirror_edk2.git] / EdkUnixPkg / 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
  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
c9093a06	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
	23	#include "BootMaint.h"\r
	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	EFI_STATUS Status;\r
152	\r
153	NewMenuEntry = NULL;\r
154	NewFileContext = NULL;\r
155	ExitFileExplorer = FALSE;\r
156	\r
157	FileOptionMask = (UINT16) (FILE_OPTION_MASK & KeyValue);\r
158	\r
159	if (UNKNOWN_CONTEXT == CallbackData->FeDisplayContext) {\r
160	//\r
161	// First in, display file system.\r
162	//\r
163	BOpt_FreeMenu (&FsOptionMenu);\r
164	BOpt_FindFileSystem (CallbackData);\r
165	CreateMenuStringToken (CallbackData, CallbackData->FeHiiHandle, &FsOptionMenu);\r
166	\r
167	UpdateFileExplorePage (CallbackData, &FsOptionMenu);\r
168	\r
169	CallbackData->FeDisplayContext = FILE_SYSTEM;\r
170	} else {\r
171	if (FILE_SYSTEM == CallbackData->FeDisplayContext) {\r
172	NewMenuEntry = BOpt_GetMenuEntry (&FsOptionMenu, FileOptionMask);\r
173	} else if (DIRECTORY == CallbackData->FeDisplayContext) {\r
174	NewMenuEntry = BOpt_GetMenuEntry (&DirectoryMenu, FileOptionMask);\r
175	}\r
176	\r
177	CallbackData->FeDisplayContext = DIRECTORY;\r
178	\r
179	NewFileContext = (BM_FILE_CONTEXT *) NewMenuEntry->VariableContext;\r
180	\r
181	if (NewFileContext->IsDir ) {\r
182	RemoveEntryList (&NewMenuEntry->Link);\r
183	BOpt_FreeMenu (&DirectoryMenu);\r
184	Status = BOpt_FindFiles (CallbackData, NewMenuEntry);\r
185	if (EFI_ERROR (Status)) {\r
186	ExitFileExplorer = TRUE;\r
187	goto exit;\r
188	}\r
189	CreateMenuStringToken (CallbackData, CallbackData->FeHiiHandle, &DirectoryMenu);\r
190	BOpt_DestroyMenuEntry (NewMenuEntry);\r
191	\r
192	UpdateFileExplorePage (CallbackData, &DirectoryMenu);\r
193	\r
194	} else {\r
195	switch (CallbackData->FeCurrentState) {\r
196	case BOOT_FROM_FILE_STATE:\r
197	//\r
198	// Here boot from file\r
199	//\r
200	BootThisFile (NewFileContext);\r
201	ExitFileExplorer = TRUE;\r
202	break;\r
203	\r
204	case ADD_BOOT_OPTION_STATE:\r
205	case ADD_DRIVER_OPTION_STATE:\r
206	if (ADD_BOOT_OPTION_STATE == CallbackData->FeCurrentState) {\r
207	FormId = FORM_BOOT_ADD_DESCRIPTION_ID;\r
208	} else {\r
209	FormId = FORM_DRIVER_ADD_FILE_DESCRIPTION_ID;\r
210	}\r
211	\r
212	CallbackData->MenuEntry = NewMenuEntry;\r
213	CallbackData->LoadContext->FilePathList = ((BM_FILE_CONTEXT *) (CallbackData->MenuEntry->VariableContext))->DevicePath;\r
214	\r
215	//\r
216	// Clean up file explore page.\r
217	//\r
218	RefreshUpdateData (FALSE, 0, FALSE, 0, 1);\r
219	\r
220	//\r
221	// Remove the Subtitle op-code.\r
222	//\r
223	CallbackData->Hii->UpdateForm (\r
224	CallbackData->Hii,\r
225	CallbackData->FeHiiHandle,\r
226	FormId,\r
227	FALSE,\r
228	UpdateData\r
229	);\r
230	\r
231	//\r
232	// Create Subtitle op-code for the display string of the option.\r
233	//\r
234	RefreshUpdateData (TRUE, (EFI_PHYSICAL_ADDRESS) (UINTN) CallbackData->FeCallbackHandle, FALSE, 0, 1);\r
235	\r
236	CreateSubTitleOpCode (\r
237	NewMenuEntry->DisplayStringToken,\r
238	&UpdateData->Data\r
239	);\r
240	\r
241	CallbackData->Hii->UpdateForm (\r
242	CallbackData->Hii,\r
243	CallbackData->FeHiiHandle,\r
244	FormId,\r
245	TRUE,\r
246	UpdateData\r
247	);\r
248	break;\r
249	\r
250	default:\r
251	break;\r
252	}\r
253	}\r
254	}\r
255	exit:\r
256	return ExitFileExplorer;\r
257	}\r
258	\r
259	EFI_STATUS\r
260	EFIAPI\r
261	FileExplorerCallback (\r
262	IN EFI_FORM_CALLBACK_PROTOCOL *This,\r
263	IN UINT16 KeyValue,\r
264	IN EFI_IFR_DATA_ARRAY *Data,\r
265	OUT EFI_HII_CALLBACK_PACKET **Packet\r
266	)\r
267	/*++\r
268	Routine Description:\r
269	Callback Function for file exploration and file interaction.\r
270	\r
271	Arguments:\r
272	This - File explorer callback protocol pointer. \r
273	KeyValue - Key value to identify the type of data to expect.\r
274	Data - A pointer to the data being sent to the original exporting driver.\r
275	Packet - A pointer to a packet of information which a driver passes back to the browser.\r
276	\r
277	Returns:\r
278	EFI_SUCCESS - Callback ended successfully.\r
279	Others - Contain some errors.\r
280	\r
281	--*/\r
282	{\r
283	BMM_CALLBACK_DATA *Private;\r
284	FILE_EXPLORER_NV_DATA *NvRamMap;\r
285	EFI_STATUS Status;\r
286	\r
287	Status = EFI_SUCCESS;\r
288	Private = FE_CALLBACK_DATA_FROM_THIS (This);\r
289	UpdateData->FormCallbackHandle = (EFI_PHYSICAL_ADDRESS) (UINTN) Private->FeCallbackHandle;\r
290	NvRamMap = (FILE_EXPLORER_NV_DATA *) Data->NvRamMap;\r
291	\r
292	if (KEY_VALUE_SAVE_AND_EXIT == KeyValue) {\r
293	//\r
294	// Apply changes and exit formset.\r
295	//\r
296	if (ADD_BOOT_OPTION_STATE == Private->FeCurrentState) {\r
297	Status = Var_UpdateBootOption (Private, NvRamMap);\r
298	if (EFI_ERROR (Status)) {\r
299	return Status;\r
300	}\r
301	\r
302	BOpt_GetBootOptions (Private);\r
303	CreateMenuStringToken (Private, Private->FeHiiHandle, &BootOptionMenu);\r
304	} else if (ADD_DRIVER_OPTION_STATE == Private->FeCurrentState) {\r
305	Status = Var_UpdateDriverOption (\r
306	Private,\r
307	Private->FeHiiHandle,\r
308	NvRamMap->DescriptionData,\r
309	NvRamMap->OptionalData,\r
310	NvRamMap->ForceReconnect\r
311	);\r
312	if (EFI_ERROR (Status)) {\r
313	return Status;\r
314	}\r
315	\r
316	BOpt_GetDriverOptions (Private);\r
317	CreateMenuStringToken (Private, Private->FeHiiHandle, &DriverOptionMenu);\r
318	}\r
319	\r
320	CreateCallbackPacket (Packet, EXIT_REQUIRED \| NV_NOT_CHANGED);\r
321	} else if (KEY_VALUE_NO_SAVE_AND_EXIT == KeyValue) {\r
322	//\r
323	// Discard changes and exit formset.\r
324	//\r
325	NvRamMap->OptionalData[0] = 0x0000;\r
326	NvRamMap->DescriptionData[0] = 0x0000;\r
327	CreateCallbackPacket (Packet, EXIT_REQUIRED \| NV_NOT_CHANGED);\r
328	} else if (KeyValue < FILE_OPTION_OFFSET) {\r
329	//\r
330	// Exit File Explorer formset.\r
331	//\r
332	CreateCallbackPacket (Packet, EXIT_REQUIRED);\r
333	} else {\r
334	if (UpdateFileExplorer (Private, KeyValue)) {\r
335	CreateCallbackPacket (Packet, EXIT_REQUIRED);\r
336	}\r
337	}\r
338	\r
339	return Status;\r
340	}\r