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1 | /*++\r | |
2 | Copyright (c) 2006 - 2007, Intel Corporation \r | |
3 | All rights reserved. This program and the accompanying materials \r | |
4 | are licensed and made available under the terms and conditions of the BSD License \r | |
5 | which accompanies this distribution. The full text of the license may be found at \r | |
6 | http://opensource.org/licenses/bsd-license.php \r | |
7 | \r | |
8 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
9 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
10 | \r | |
11 | Module Name:\r | |
12 | DriverSample.c\r | |
13 | \r | |
14 | Abstract:\r | |
15 | \r | |
16 | This is an example of how a driver might export data to the HII protocol to be \r | |
17 | later utilized by the Setup Protocol\r | |
18 | \r | |
19 | --*/\r | |
20 | \r | |
21 | //\r | |
22 | // Include common header file for this module.\r | |
23 | //\r | |
24 | #include "CommonHeader.h"\r | |
25 | \r | |
26 | #include "DriverSample.h"\r | |
27 | \r | |
28 | #define DISPLAY_ONLY_MY_ITEM 0x0001\r | |
29 | \r | |
30 | #define STRING_PACK_GUID \\r | |
31 | { \\r | |
32 | 0x8160a85f, 0x934d, 0x468b, { 0xa2, 0x35, 0x72, 0x89, 0x59, 0x14, 0xf6, 0xfc } \\r | |
33 | }\r | |
34 | \r | |
35 | EFI_GUID mFormSetGuid = FORMSET_GUID;\r | |
36 | EFI_GUID mStringPackGuid = STRING_PACK_GUID; \r | |
37 | \r | |
38 | STATIC\r | |
39 | EFI_STATUS\r | |
40 | EFIAPI\r | |
41 | DriverCallback (\r | |
42 | IN EFI_FORM_CALLBACK_PROTOCOL *This,\r | |
43 | IN UINT16 KeyValue,\r | |
44 | IN EFI_IFR_DATA_ARRAY *Data,\r | |
45 | OUT EFI_HII_CALLBACK_PACKET **Packet\r | |
46 | )\r | |
47 | /*++\r | |
48 | \r | |
49 | Routine Description:\r | |
50 | \r | |
51 | This is the function that is called to provide results data to the driver. This data\r | |
52 | consists of a unique key which is used to identify what data is either being passed back\r | |
53 | or being asked for. \r | |
54 | \r | |
55 | Arguments:\r | |
56 | \r | |
57 | KeyValue - A unique value which is sent to the original exporting driver so that it\r | |
58 | can identify the type of data to expect. The format of the data tends to\r | |
59 | vary based on the op-code that geerated the callback.\r | |
60 | \r | |
61 | Data - A pointer to the data being sent to the original exporting driver.\r | |
62 | \r | |
63 | Returns: \r | |
64 | \r | |
65 | --*/\r | |
66 | {\r | |
67 | EFI_CALLBACK_INFO *Private;\r | |
68 | EFI_HII_UPDATE_DATA *UpdateData;\r | |
69 | UINT8 *Location;\r | |
70 | EFI_HII_CALLBACK_PACKET *DataPacket;\r | |
71 | UINT16 Value;\r | |
72 | CHAR16 VariableName[40];\r | |
73 | STATIC UINT16 QuestionId = 0;\r | |
74 | IFR_OPTION *OptionList;\r | |
75 | UINTN Index;\r | |
76 | MyIfrNVData NVStruc;\r | |
77 | \r | |
78 | Private = EFI_CALLBACK_INFO_FROM_THIS (This);\r | |
79 | \r | |
80 | //\r | |
81 | // This should tell me the first offset AFTER the end of the compiled NV map\r | |
82 | // If op-code results are not going to be saved to NV locations ensure the QuestionId\r | |
83 | // is beyond the end of the NVRAM mapping.\r | |
84 | //\r | |
85 | if (QuestionId == 0) {\r | |
86 | QuestionId = sizeof (MyIfrNVData);\r | |
87 | }\r | |
88 | \r | |
89 | ZeroMem (VariableName, (sizeof (CHAR16) * 40));\r | |
90 | \r | |
91 | switch (KeyValue) {\r | |
92 | case 0x0001:\r | |
93 | //\r | |
94 | // Create a small boot order list\r | |
95 | //\r | |
96 | QuestionId = (UINT16) ((UINTN) (&NVStruc.BootOrder) - (UINTN) (&NVStruc));\r | |
97 | \r | |
98 | //\r | |
99 | // Need some memory for OptionList. Allow for up to 8 options.\r | |
100 | //\r | |
101 | OptionList = AllocateZeroPool (sizeof (IFR_OPTION) * 8);\r | |
102 | ASSERT (OptionList != NULL);\r | |
103 | \r | |
104 | //\r | |
105 | // Allocate space for creation of Buffer\r | |
106 | //\r | |
107 | UpdateData = AllocateZeroPool (0x1000);\r | |
108 | ASSERT (UpdateData != NULL);\r | |
109 | \r | |
110 | //\r | |
111 | // Remove all the op-codes starting with Label 0x2222 to next Label (second label is for convenience\r | |
112 | // so we don't have to keep track of how many op-codes we added or subtracted. The rules for removal\r | |
113 | // of op-codes are simply that the removal will always stop as soon as a label or the end of a form is\r | |
114 | // encountered. Therefore, giving a large obnoxious count such as below takes care of other complexities.\r | |
115 | //\r | |
116 | UpdateData->DataCount = 0xFF;\r | |
117 | \r | |
118 | //\r | |
119 | // Delete set of op-codes\r | |
120 | //\r | |
121 | Private->Hii->UpdateForm (\r | |
122 | Private->Hii,\r | |
123 | Private->RegisteredHandle,\r | |
124 | (EFI_FORM_LABEL) 0x2222,\r | |
125 | FALSE, // If we aren't adding, we are deleting\r | |
126 | UpdateData\r | |
127 | );\r | |
128 | \r | |
129 | //\r | |
130 | // Create 3 options\r | |
131 | //\r | |
132 | for (Index = 0; Index < 3; Index++) {\r | |
133 | OptionList[Index].StringToken = (UINT16) (STR_BOOT_OPTION1 + Index);\r | |
134 | OptionList[Index].Value = (UINT16) (Index + 1);\r | |
135 | OptionList[Index].Flags = RESET_REQUIRED;\r | |
136 | }\r | |
137 | \r | |
138 | CreateOrderedListOpCode (\r | |
139 | QuestionId, // Question ID\r | |
140 | 8, // Max Entries\r | |
141 | (UINT16) STRING_TOKEN (STR_BOOT_OPTIONS), // Token value for the Prompt\r | |
142 | (UINT16) STRING_TOKEN (STR_NULL_STRING), // Token value for the Help\r | |
143 | OptionList,\r | |
144 | 3,\r | |
145 | &UpdateData->Data // Buffer location to place op-codes\r | |
146 | );\r | |
147 | \r | |
148 | //\r | |
149 | // For one-of/ordered lists commands, they really consist of 2 op-codes (a header and a footer)\r | |
150 | // Each option within a one-of/ordered list is also an op-code\r | |
151 | // So this example has 5 op-codes it is adding since we have a one-of header + 3 options + one-of footer\r | |
152 | //\r | |
153 | UpdateData->DataCount = 0x5;\r | |
154 | \r | |
155 | //\r | |
156 | // Add one op-code\r | |
157 | //\r | |
158 | Private->Hii->UpdateForm (\r | |
159 | Private->Hii,\r | |
160 | Private->RegisteredHandle,\r | |
161 | (EFI_FORM_LABEL) 0x2222,\r | |
162 | TRUE,\r | |
163 | UpdateData\r | |
164 | );\r | |
165 | \r | |
166 | FreePool (UpdateData);\r | |
167 | FreePool (OptionList);\r | |
168 | break;\r | |
169 | \r | |
170 | case 0x0002:\r | |
171 | //\r | |
172 | // Create a large boot order list\r | |
173 | //\r | |
174 | QuestionId = (UINT16) ((UINTN) (&NVStruc.BootOrder) - (UINTN) (&NVStruc));\r | |
175 | \r | |
176 | //\r | |
177 | // Need some memory for OptionList. Allow for up to 8 options.\r | |
178 | //\r | |
179 | OptionList = AllocateZeroPool (sizeof (IFR_OPTION) * 8);\r | |
180 | ASSERT (OptionList != NULL);\r | |
181 | \r | |
182 | //\r | |
183 | // Allocate space for creation of Buffer\r | |
184 | //\r | |
185 | UpdateData = AllocateZeroPool (0x1000);\r | |
186 | ASSERT (UpdateData != NULL);\r | |
187 | \r | |
188 | //\r | |
189 | // Remove all the op-codes starting with Label 0x2222 to next Label (second label is for convenience\r | |
190 | // so we don't have to keep track of how many op-codes we added or subtracted\r | |
191 | //\r | |
192 | UpdateData->DataCount = 0xFF;\r | |
193 | \r | |
194 | //\r | |
195 | // Delete one op-code\r | |
196 | //\r | |
197 | Private->Hii->UpdateForm (\r | |
198 | Private->Hii,\r | |
199 | Private->RegisteredHandle,\r | |
200 | (EFI_FORM_LABEL) 0x2222,\r | |
201 | FALSE,\r | |
202 | UpdateData\r | |
203 | );\r | |
204 | \r | |
205 | //\r | |
206 | // Create 4 options\r | |
207 | //\r | |
208 | for (Index = 0; Index < 4; Index++) {\r | |
209 | OptionList[Index].StringToken = (UINT16) (STR_BOOT_OPTION1 + Index);\r | |
210 | OptionList[Index].Value = (UINT16) (Index + 1);\r | |
211 | OptionList[Index].Flags = RESET_REQUIRED;\r | |
212 | }\r | |
213 | \r | |
214 | CreateOrderedListOpCode (\r | |
215 | QuestionId, // Question ID\r | |
216 | 8, // Max Entries\r | |
217 | (UINT16) STRING_TOKEN (STR_BOOT_OPTIONS), // Token value for the Prompt\r | |
218 | (UINT16) STRING_TOKEN (STR_NULL_STRING), // Token value for the Help\r | |
219 | OptionList,\r | |
220 | 4,\r | |
221 | &UpdateData->Data // Buffer location to place op-codes\r | |
222 | );\r | |
223 | \r | |
224 | //\r | |
225 | // For one-of commands, they really consist of 2 op-codes (a header and a footer)\r | |
226 | // Each option within a one-of is also an op-code\r | |
227 | // So this example has 6 op-codes it is adding since we have a one-of header + 4 options + one-of footer\r | |
228 | //\r | |
229 | UpdateData->DataCount = 0x6;\r | |
230 | \r | |
231 | //\r | |
232 | // Add one op-code\r | |
233 | //\r | |
234 | Private->Hii->UpdateForm (\r | |
235 | Private->Hii,\r | |
236 | Private->RegisteredHandle,\r | |
237 | (EFI_FORM_LABEL) 0x2222,\r | |
238 | TRUE,\r | |
239 | UpdateData\r | |
240 | );\r | |
241 | \r | |
242 | FreePool (UpdateData);\r | |
243 | FreePool (OptionList);\r | |
244 | break;\r | |
245 | \r | |
246 | case 0x1234:\r | |
247 | //\r | |
248 | // Allocate space for creation of Buffer\r | |
249 | //\r | |
250 | QuestionId = (UINT16) ((UINTN) (&NVStruc.DynamicCheck) - (UINTN) (&NVStruc));\r | |
251 | UpdateData = AllocateZeroPool (0x1000);\r | |
252 | ASSERT (UpdateData != NULL);\r | |
253 | \r | |
254 | Location = (UINT8 *) &UpdateData->Data;\r | |
255 | \r | |
256 | UpdateData->FormSetUpdate = TRUE;\r | |
257 | UpdateData->FormCallbackHandle = (EFI_PHYSICAL_ADDRESS) (UINTN) Private->CallbackHandle;\r | |
258 | UpdateData->FormUpdate = FALSE;\r | |
259 | UpdateData->FormTitle = 0;\r | |
260 | UpdateData->DataCount = 2;\r | |
261 | \r | |
262 | CreateGotoOpCode (\r | |
263 | 1,\r | |
264 | STR_GOTO_FORM1, // Token value for the Prompt\r | |
265 | 0, // Goto Help\r | |
266 | 0, // Flags\r | |
267 | 0, // Key\r | |
268 | &UpdateData->Data // Buffer location to place op-codes\r | |
269 | );\r | |
270 | \r | |
271 | Location = Location + ((EFI_IFR_OP_HEADER *) &UpdateData->Data)->Length;\r | |
272 | \r | |
273 | CreateCheckBoxOpCode (\r | |
274 | QuestionId, // Question ID\r | |
275 | 1, // Data width (BOOLEAN = 1)\r | |
276 | (UINT16) STRING_TOKEN (STR_CHECK_DYNAMIC_PROMPT), // Token value for the Prompt\r | |
277 | (UINT16) STRING_TOKEN (STR_CHECK_DYNAMIC_HELP), // Token value for the Help\r | |
278 | EFI_IFR_FLAG_INTERACTIVE, // Flags\r | |
279 | 0x1236, // Key\r | |
280 | Location // Buffer location to place op-codes\r | |
281 | );\r | |
282 | \r | |
283 | Private->Hii->UpdateForm (\r | |
284 | Private->Hii,\r | |
285 | Private->RegisteredHandle,\r | |
286 | (EFI_FORM_LABEL) 0x1234,\r | |
287 | TRUE,\r | |
288 | UpdateData\r | |
289 | );\r | |
290 | \r | |
291 | FreePool (UpdateData);\r | |
292 | QuestionId++;\r | |
293 | break;\r | |
294 | \r | |
295 | case 0x1235:\r | |
296 | //\r | |
297 | // Allocate space for creation of Buffer\r | |
298 | //\r | |
299 | UpdateData = AllocateZeroPool (0x1000);\r | |
300 | ASSERT (UpdateData != NULL);\r | |
301 | \r | |
302 | //\r | |
303 | // Initialize DataPacket with information intended to remove all\r | |
304 | // previously created op-codes in the dynamic page\r | |
305 | //\r | |
306 | UpdateData->FormSetUpdate = FALSE;\r | |
307 | UpdateData->FormCallbackHandle = 0;\r | |
308 | UpdateData->FormUpdate = FALSE;\r | |
309 | UpdateData->FormTitle = 0;\r | |
310 | //\r | |
311 | // Unlikely to be more than 0xff op-codes in the dynamic page to remove\r | |
312 | //\r | |
313 | UpdateData->DataCount = 0xff;\r | |
314 | UpdateData->Data = NULL;\r | |
315 | \r | |
316 | //\r | |
317 | // Remove all op-codes from dynamic page\r | |
318 | //\r | |
319 | Private->Hii->UpdateForm (\r | |
320 | Private->Hii,\r | |
321 | Private->RegisteredHandle,\r | |
322 | (EFI_FORM_LABEL) 0x1234, // Label 0x1234\r | |
323 | FALSE, // Remove Op-codes (will never remove form/endform)\r | |
324 | UpdateData // Significant value is UpdateData->DataCount\r | |
325 | );\r | |
326 | \r | |
327 | UpdateData->FormSetUpdate = FALSE;\r | |
328 | UpdateData->FormCallbackHandle = 0;\r | |
329 | UpdateData->FormUpdate = FALSE;\r | |
330 | UpdateData->FormTitle = 0;\r | |
331 | UpdateData->DataCount = 1;\r | |
332 | \r | |
333 | CreateGotoOpCode (\r | |
334 | 1,\r | |
335 | STR_GOTO_FORM1, // Token value for the Prompt\r | |
336 | 0, // Goto Help\r | |
337 | 0, // Flags\r | |
338 | 0, // Key\r | |
339 | &UpdateData->Data // Buffer location to place op-codes\r | |
340 | );\r | |
341 | \r | |
342 | Private->Hii->UpdateForm (\r | |
343 | Private->Hii,\r | |
344 | Private->RegisteredHandle,\r | |
345 | (EFI_FORM_LABEL) 0x1234,\r | |
346 | TRUE,\r | |
347 | UpdateData\r | |
348 | );\r | |
349 | \r | |
350 | FreePool (UpdateData);\r | |
351 | break;\r | |
352 | \r | |
353 | case 0x1236:\r | |
354 | //\r | |
355 | // If I hit the checkbox, I enter this case statement...\r | |
356 | //\r | |
357 | //\r | |
358 | // Since I am returning an error (for test purposes) I need to pass in the string for the error\r | |
359 | // I will allocate space for the return value. If an error occurs (which is the case) I can simply return\r | |
360 | // an error and fill in the string parameter, otherwise, I will return information in the DataArray structure.\r | |
361 | // The browser will free this packet structure\r | |
362 | //\r | |
363 | *Packet = AllocateZeroPool (sizeof (EFI_HII_CALLBACK_PACKET) + sizeof (SAMPLE_STRING) + 2);\r | |
364 | ASSERT (*Packet != NULL);\r | |
365 | \r | |
366 | //\r | |
367 | // Assign the buffer address to DataPacket\r | |
368 | //\r | |
369 | DataPacket = *Packet;\r | |
370 | \r | |
371 | StrCpy (DataPacket->String, (CHAR16 *) SAMPLE_STRING);\r | |
372 | return EFI_DEVICE_ERROR;\r | |
373 | \r | |
374 | case 0x1237:\r | |
375 | \r | |
376 | *Packet = AllocateZeroPool (sizeof (EFI_HII_CALLBACK_PACKET) + 2);\r | |
377 | ASSERT (*Packet != NULL);\r | |
378 | \r | |
379 | //\r | |
380 | // Assign the buffer address to DataPacket\r | |
381 | //\r | |
382 | DataPacket = *Packet;\r | |
383 | \r | |
384 | DataPacket->DataArray.EntryCount = 1;\r | |
385 | DataPacket->DataArray.NvRamMap = NULL;\r | |
386 | ((EFI_IFR_DATA_ENTRY *) (&DataPacket->DataArray + 1))->Flags = EXIT_REQUIRED;\r | |
387 | break;\r | |
388 | \r | |
389 | case 0x1555:\r | |
390 | Value = 0x0001;\r | |
391 | UnicodeSPrint (VariableName, 0x80, (CHAR16 *) L"%d", VAR_EQ_TEST_NAME);\r | |
392 | \r | |
393 | gRT->SetVariable (\r | |
394 | VariableName,\r | |
395 | &mFormSetGuid,\r | |
396 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
397 | 2,\r | |
398 | (VOID *) &Value\r | |
399 | );\r | |
400 | break;\r | |
401 | \r | |
402 | case 0x1556:\r | |
403 | Value = 0x1000;\r | |
404 | UnicodeSPrint (VariableName, 0x80, (CHAR16 *) L"%d", VAR_EQ_TEST_NAME);\r | |
405 | \r | |
406 | gRT->SetVariable (\r | |
407 | VariableName,\r | |
408 | &mFormSetGuid,\r | |
409 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
410 | 2,\r | |
411 | (VOID *) &Value\r | |
412 | );\r | |
413 | break;\r | |
414 | \r | |
415 | case 0x1557:\r | |
416 | Value = 0x0000;\r | |
417 | UnicodeSPrint (VariableName, 0x80, (CHAR16 *) L"%d", VAR_EQ_TEST_NAME);\r | |
418 | \r | |
419 | gRT->SetVariable (\r | |
420 | VariableName,\r | |
421 | &mFormSetGuid,\r | |
422 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
423 | 2,\r | |
424 | (VOID *) &Value\r | |
425 | );\r | |
426 | break;\r | |
427 | \r | |
428 | default:\r | |
429 | break;\r | |
430 | }\r | |
431 | \r | |
432 | return EFI_SUCCESS;\r | |
433 | }\r | |
434 | \r | |
435 | EFI_STATUS\r | |
436 | EFIAPI\r | |
437 | DriverSampleInit (\r | |
438 | IN EFI_HANDLE ImageHandle,\r | |
439 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
440 | )\r | |
441 | {\r | |
442 | EFI_STATUS Status;\r | |
443 | EFI_HII_PROTOCOL *Hii;\r | |
444 | //\r | |
445 | // EFI_FORM_BROWSER_PROTOCOL *FormConfig;\r | |
446 | //\r | |
447 | EFI_HII_PACKAGES *PackageList;\r | |
448 | EFI_HII_HANDLE HiiHandle;\r | |
449 | STRING_REF TokenToUpdate;\r | |
450 | STRING_REF TokenToUpdate2;\r | |
451 | STRING_REF TokenToUpdate3;\r | |
452 | CHAR16 *NewString;\r | |
453 | EFI_HII_UPDATE_DATA *UpdateData;\r | |
454 | EFI_CALLBACK_INFO *CallbackInfo;\r | |
455 | EFI_HANDLE Handle;\r | |
456 | EFI_SCREEN_DESCRIPTOR Screen;\r | |
457 | \r | |
458 | ZeroMem (&Screen, sizeof (EFI_SCREEN_DESCRIPTOR));\r | |
459 | \r | |
460 | gST->ConOut->QueryMode (gST->ConOut, gST->ConOut->Mode->Mode, &Screen.RightColumn, &Screen.BottomRow);\r | |
461 | \r | |
462 | //\r | |
463 | // Remove 3 characters from top and bottom\r | |
464 | //\r | |
465 | Screen.TopRow = 3;\r | |
466 | Screen.BottomRow = Screen.BottomRow - 3;\r | |
467 | \r | |
468 | //\r | |
469 | // There should only be one HII protocol\r | |
470 | //\r | |
471 | Status = gBS->LocateProtocol (\r | |
472 | &gEfiHiiProtocolGuid,\r | |
473 | NULL,\r | |
474 | (VOID **) &Hii\r | |
475 | );\r | |
476 | if (EFI_ERROR (Status)) {\r | |
477 | return Status;;\r | |
478 | }\r | |
479 | \r | |
480 | CallbackInfo = AllocatePool (sizeof (EFI_CALLBACK_INFO));\r | |
481 | if (CallbackInfo == NULL) {\r | |
482 | return EFI_OUT_OF_RESOURCES;\r | |
483 | }\r | |
484 | \r | |
485 | CallbackInfo->Signature = EFI_CALLBACK_INFO_SIGNATURE;\r | |
486 | CallbackInfo->Hii = Hii;\r | |
487 | \r | |
488 | //\r | |
489 | // This example does not implement worker functions for the NV accessor functions. Only a callback evaluator\r | |
490 | //\r | |
491 | CallbackInfo->DriverCallback.NvRead = NULL;\r | |
492 | CallbackInfo->DriverCallback.NvWrite = NULL;\r | |
493 | CallbackInfo->DriverCallback.Callback = DriverCallback;\r | |
494 | \r | |
495 | //\r | |
496 | // Install protocol interface\r | |
497 | //\r | |
498 | Handle = NULL;\r | |
499 | Status = gBS->InstallProtocolInterface (\r | |
500 | &Handle,\r | |
501 | &gEfiFormCallbackProtocolGuid,\r | |
502 | EFI_NATIVE_INTERFACE,\r | |
503 | &CallbackInfo->DriverCallback\r | |
504 | );\r | |
505 | \r | |
506 | ASSERT_EFI_ERROR (Status);\r | |
507 | \r | |
508 | CallbackInfo->CallbackHandle = Handle;\r | |
509 | \r | |
510 | PackageList = PreparePackages (1, &mStringPackGuid, DriverSampleStrings);\r | |
511 | Status = Hii->NewPack (Hii, PackageList, &HiiHandle);\r | |
512 | FreePool (PackageList);\r | |
513 | \r | |
514 | PackageList = PreparePackages (1, &mStringPackGuid, InventoryBin);\r | |
515 | Status = Hii->NewPack (Hii, PackageList, &HiiHandle);\r | |
516 | FreePool (PackageList);\r | |
517 | \r | |
518 | PackageList = PreparePackages (1, &mStringPackGuid, VfrBin);\r | |
519 | Status = Hii->NewPack (Hii, PackageList, &HiiHandle);\r | |
520 | FreePool (PackageList);\r | |
521 | \r | |
522 | CallbackInfo->RegisteredHandle = HiiHandle;\r | |
523 | \r | |
524 | //\r | |
525 | // Very simple example of how one would update a string that is already\r | |
526 | // in the HII database\r | |
527 | //\r | |
528 | TokenToUpdate = (STRING_REF) STR_CPU_STRING2;\r | |
529 | NewString = (CHAR16 *) L"700 Mhz";\r | |
530 | \r | |
531 | Hii->NewString (Hii, NULL, HiiHandle, &TokenToUpdate, NewString);\r | |
532 | \r | |
533 | //\r | |
534 | // Add a string - if 0 will be updated with new Token number\r | |
535 | //\r | |
536 | TokenToUpdate = (STRING_REF) 0;\r | |
537 | \r | |
538 | //\r | |
539 | // Add a string - if 0 will be updated with new Token number\r | |
540 | //\r | |
541 | TokenToUpdate2 = (STRING_REF) 0;\r | |
542 | \r | |
543 | //\r | |
544 | // Add a string - if 0 will be updated with new Token number\r | |
545 | //\r | |
546 | TokenToUpdate3 = (STRING_REF) 0;\r | |
547 | \r | |
548 | Hii->NewString (Hii, NULL, HiiHandle, &TokenToUpdate, (CHAR16 *) L"Desired Speed");\r | |
549 | Hii->NewString (Hii, NULL, HiiHandle, &TokenToUpdate2, (CHAR16 *) L"5 Thz");\r | |
550 | Hii->NewString (Hii, NULL, HiiHandle, &TokenToUpdate3, (CHAR16 *) L"This is next year's desired speed - right?");\r | |
551 | \r | |
552 | //\r | |
553 | // Allocate space for creation of Buffer\r | |
554 | //\r | |
555 | UpdateData = AllocateZeroPool (0x1000);\r | |
556 | ASSERT (UpdateData != NULL);\r | |
557 | \r | |
558 | //\r | |
559 | // Flag update pending in FormSet\r | |
560 | //\r | |
561 | UpdateData->FormSetUpdate = TRUE;\r | |
562 | //\r | |
563 | // Register CallbackHandle data for FormSet\r | |
564 | //\r | |
565 | UpdateData->FormCallbackHandle = (EFI_PHYSICAL_ADDRESS) (UINTN) CallbackInfo->CallbackHandle;\r | |
566 | UpdateData->FormUpdate = FALSE;\r | |
567 | UpdateData->FormTitle = 0;\r | |
568 | UpdateData->DataCount = 1;\r | |
569 | \r | |
570 | CreateTextOpCode (TokenToUpdate, TokenToUpdate2, TokenToUpdate3, 0, 0, &UpdateData->Data);\r | |
571 | \r | |
572 | Hii->UpdateForm (Hii, HiiHandle, (EFI_FORM_LABEL) 100, TRUE, UpdateData);\r | |
573 | \r | |
574 | FreePool (UpdateData);\r | |
575 | \r | |
576 | //\r | |
577 | // Example of how to display only the item we sent to HII\r | |
578 | //\r | |
579 | if (DISPLAY_ONLY_MY_ITEM == 0x0001) {\r | |
580 | //\r | |
581 | // Have the browser pull out our copy of the data, and only display our data\r | |
582 | //\r | |
583 | // Status = FormConfig->SendForm (FormConfig, TRUE, HiiHandle, NULL, NULL, NULL, &Screen, NULL);\r | |
584 | //\r | |
585 | } else {\r | |
586 | //\r | |
587 | // Have the browser pull out all the data in the HII Database and display it.\r | |
588 | //\r | |
589 | // Status = FormConfig->SendForm (FormConfig, TRUE, 0, NULL, NULL, NULL, NULL, NULL);\r | |
590 | //\r | |
591 | }\r | |
592 | \r | |
593 | if (EFI_ERROR (Status)) {\r | |
594 | return Status;\r | |
595 | }\r | |
596 | \r | |
597 | return EFI_SUCCESS;\r | |
598 | }\r |