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Modules clean up.
[mirror_edk2.git] / IntelFrameworkModulePkg / Universal / SetupBrowserDxe / ProcessOptions.c
1 /**@file
2 Implementation for handling the User Interface option processing.
3
4 Copyright (c) 2006 - 2007 Intel Corporation. <BR>
5 All rights reserved. This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php
9
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12
13 **/
14
15 #include "Setup.h"
16 #include "Ui.h"
17
18 EFI_STATUS
19 ExtractRequestedNvMap (
20 IN EFI_FILE_FORM_TAGS *FileFormTags,
21 IN UINT16 VariableId,
22 OUT EFI_VARIABLE_DEFINITION **VariableDefinition
23 )
24 {
25 *VariableDefinition = FileFormTags->VariableDefinitions;
26
27 //
28 // Extract the data from the NV variable - consumer will free the buffer.
29 //
30 for (; *VariableDefinition != NULL; *VariableDefinition = (*VariableDefinition)->Next) {
31 //
32 // If there is a variable with this ID return with EFI_SUCCESS
33 //
34 if (!CompareMem (&(*VariableDefinition)->VariableId, &VariableId, sizeof (UINT16))) {
35 return EFI_SUCCESS;
36 }
37 }
38
39 return EFI_NOT_FOUND;
40 }
41
42 EFI_STATUS
43 ExtractNvValue (
44 IN EFI_FILE_FORM_TAGS *FileFormTags,
45 IN UINT16 VariableId,
46 IN UINT16 VariableSize,
47 IN UINT16 OffsetValue,
48 OUT VOID **Buffer
49 )
50 {
51 EFI_STATUS Status;
52 EFI_VARIABLE_DEFINITION *VariableDefinition;
53
54 Status = ExtractRequestedNvMap (FileFormTags, VariableId, &VariableDefinition);
55
56 if (!EFI_ERROR (Status)) {
57 //
58 // Allocate sufficient space for the data and copy it into the outgoing buffer
59 //
60 if (VariableSize != 0) {
61 *Buffer = AllocateZeroPool (VariableSize);
62 ASSERT (*Buffer != NULL);
63 CopyMem (*Buffer, &VariableDefinition->NvRamMap[OffsetValue], VariableSize);
64 }
65 return EFI_SUCCESS;
66 }
67
68 return Status;
69 }
70
71 STATIC
72 VOID
73 AdjustNvMap (
74 IN EFI_FILE_FORM_TAGS *FileFormTags,
75 IN UI_MENU_OPTION *MenuOption
76 )
77 {
78 CHAR8 *NvRamMap;
79 UINTN SizeRequired;
80 UINTN Index;
81 UINTN CachedStart;
82 EFI_VARIABLE_DEFINITION *VariableDefinition;
83
84 CachedStart = 0;
85
86 SizeRequired = MenuOption->ThisTag->StorageStart + MenuOption->ThisTag->StorageWidth;
87
88 ExtractRequestedNvMap (FileFormTags, MenuOption->Tags->VariableNumber, &VariableDefinition);
89
90 //
91 // We arrived here because the current NvRamMap is too small for the new op-code to store things and
92 // we need to adjust the buffer to support this.
93 //
94 NvRamMap = AllocateZeroPool (SizeRequired + 1);
95 ASSERT (NvRamMap != NULL);
96
97 //
98 // Copy current NvRamMap to the new NvRamMap
99 //
100 CopyMem (NvRamMap, VariableDefinition->NvRamMap, VariableDefinition->VariableFakeSize);
101
102 //
103 // Remember, the only time we come here is because we are in the NVPlus section of the NvRamMap
104 //
105 for (Index = MenuOption->TagIndex;
106 (MenuOption->Tags[Index].Operand != EFI_IFR_END_FORM_OP) && (MenuOption->Tags[Index].Operand != EFI_IFR_END_ONE_OF_OP);
107 Index++
108 ) {
109
110 switch (MenuOption->Tags[Index].Operand) {
111 case EFI_IFR_ORDERED_LIST_OP:
112 case EFI_IFR_ONE_OF_OP:
113 CachedStart = MenuOption->Tags[Index].StorageStart;
114 break;
115
116 case EFI_IFR_ONE_OF_OPTION_OP:
117 if (MenuOption->Tags[Index].Flags & EFI_IFR_FLAG_DEFAULT) {
118 CopyMem (&NvRamMap[CachedStart], &MenuOption->Tags[Index].Value, 2);
119 }
120 break;
121
122 case EFI_IFR_CHECKBOX_OP:
123 CopyMem (&NvRamMap[MenuOption->Tags[Index].StorageStart], &MenuOption->Tags[Index].Flags, 1);
124 break;
125
126 case EFI_IFR_NUMERIC_OP:
127 case EFI_IFR_DATE_OP:
128 case EFI_IFR_TIME_OP:
129 case EFI_IFR_STRING_OP:
130 case EFI_IFR_PASSWORD_OP:
131 CopyMem (
132 &NvRamMap[MenuOption->Tags[Index].StorageStart],
133 &MenuOption->Tags[Index].Value,
134 MenuOption->Tags[Index].StorageWidth
135 );
136 break;
137
138 }
139 }
140
141 FreePool (VariableDefinition->NvRamMap);
142 VariableDefinition->NvRamMap = NvRamMap;
143 VariableDefinition->VariableFakeSize = (UINT16) SizeRequired;
144 }
145
146 EFI_STATUS
147 ProcessOptions (
148 IN UI_MENU_OPTION *MenuOption,
149 IN BOOLEAN Selected,
150 IN EFI_FILE_FORM_TAGS *FileFormTagsHead,
151 IN EFI_IFR_DATA_ARRAY *PageData,
152 OUT CHAR16 **OptionString
153 )
154 {
155 EFI_STATUS Status;
156 CHAR16 *StringPtr;
157 UINTN Index;
158 UINTN CachedIndex;
159 EFI_FILE_FORM_TAGS *FileFormTags;
160 EFI_TAG *Tag;
161 CHAR16 FormattedNumber[6];
162 UINT16 Number;
163 UINT16 Value;
164 UINT16 *ValueArray;
165 UINT16 *NvRamMap;
166 CHAR8 *TmpNvRamMap;
167 UINTN Default;
168 UINTN StringCount;
169 CHAR16 Character[2];
170 UINTN Count;
171 EFI_TIME Time;
172 EFI_FORM_CALLBACK_PROTOCOL *FormCallback;
173 STRING_REF PopUp;
174 CHAR16 NullCharacter;
175 EFI_INPUT_KEY Key;
176 EFI_VARIABLE_DEFINITION *VariableDefinition;
177 BOOLEAN OrderedList;
178 BOOLEAN Initialized;
179 UINT16 KeyValue;
180 BOOLEAN Skip;
181
182 FileFormTags = FileFormTagsHead;
183
184 for (Index = 0; Index < MenuOption->IfrNumber; Index++) {
185 FileFormTags = FileFormTags->NextFile;
186 }
187
188 OrderedList = FALSE;
189 Initialized = FALSE;
190 ValueArray = NULL;
191 VariableDefinition = NULL;
192 Skip = FALSE;
193
194 ZeroMem (&Time, sizeof (EFI_TIME));
195
196 StringPtr = (CHAR16 *) L"\0";
197 Tag = MenuOption->ThisTag;
198 ExtractRequestedNvMap (FileFormTags, Tag->VariableNumber, &VariableDefinition);
199
200 if (Tag->StorageStart > VariableDefinition->VariableSize) {
201 NvRamMap = (UINT16 *) &VariableDefinition->FakeNvRamMap[Tag->StorageStart];
202 } else {
203 NvRamMap = (UINT16 *) &VariableDefinition->NvRamMap[Tag->StorageStart];
204 }
205
206 StringCount = 0;
207 Character[1] = 0;
208 Count = 0;
209 Default = 0;
210 NullCharacter = CHAR_NULL;
211 FormCallback = NULL;
212
213 if (MenuOption->ThisTag->Operand == EFI_IFR_ORDERED_LIST_OP) {
214 OrderedList = TRUE;
215 if (((UINT8 *) NvRamMap)[0] != 0x00) {
216 Initialized = TRUE;
217 }
218 }
219
220 ZeroMem (FormattedNumber, 12);
221
222 Status = gBS->HandleProtocol (
223 (VOID *) (UINTN) FileFormTags->FormTags.Tags[0].CallbackHandle,
224 &gEfiFormCallbackProtocolGuid,
225 (VOID **) &FormCallback
226 );
227
228 if (*OptionString != NULL) {
229 FreePool (*OptionString);
230 *OptionString = NULL;
231 }
232
233 switch (Tag->Operand) {
234
235 case EFI_IFR_ORDERED_LIST_OP:
236 case EFI_IFR_ONE_OF_OP:
237 //
238 // If the op-code we are looking at is larger than the latest created NvMap - we likely encountered a dynamically
239 // created entry which has an expanded NvMap requirement. We won't save this information - but we need to adjust
240 // the NvMap so that we can properly display the information
241 //
242 if ((UINTN) (Tag->StorageStart + Tag->StorageWidth) > VariableDefinition->VariableFakeSize) {
243 AdjustNvMap (FileFormTags, MenuOption);
244 NvRamMap = (UINT16 *) &VariableDefinition->NvRamMap[Tag->StorageStart];
245 }
246
247 CachedIndex = MenuOption->TagIndex;
248
249 //
250 // search for EFI_IFR_ONE_OF_OPTION_OP until you hit the EFI_IFR_END_ONE_OF_OP,
251 // each of the .Text in the options are going to be what gets displayed. Break each into 26 char chunks
252 // when hit right/left arrow allows for selection - then repopulate Tag[TagIndex] with the choice
253 //
254 for (Index = MenuOption->TagIndex; MenuOption->Tags[Index].Operand != EFI_IFR_END_ONE_OF_OP; Index++) {
255 //
256 // We found an option - which assumedly has a string. We will eventually have to support
257 // wrapping of strings. For now, let's pretend they don't wrap and code that up.
258 //
259 // Count how many strings there are
260 //
261 if (MenuOption->Tags[Index].Operand == EFI_IFR_ONE_OF_OPTION_OP) {
262 //
263 // If one of the options for the one-of has an interactive flag, back-define the oneof to have one too
264 //
265 if (MenuOption->Tags[Index].Flags & EFI_IFR_FLAG_INTERACTIVE) {
266 MenuOption->Tags[CachedIndex].Flags = (UINT8) (MenuOption->Tags[CachedIndex].Flags | EFI_IFR_FLAG_INTERACTIVE);
267 }
268
269 StringCount++;
270 }
271 }
272 //
273 // We now know how many strings we will have, so we can allocate the
274 // space required for the array or strings.
275 //
276 *OptionString = AllocateZeroPool (StringCount * (gOptionBlockWidth + 1) * 2 * gScreenDimensions.BottomRow);
277 ASSERT (*OptionString);
278
279 //
280 // Add left delimeter to string
281 //
282 *OptionString[0] = LEFT_ONEOF_DELIMITER;
283
284 //
285 // Retrieve the current OneOf value
286 //
287 if (Selected) {
288 //
289 // Auto selection from list
290 //
291 Value = 0;
292 //
293 // Copy current setting to the seed Value
294 //
295 if (Tag->Operand == EFI_IFR_ORDERED_LIST_OP) {
296 ValueArray = AllocateZeroPool (MenuOption->ThisTag->StorageWidth);
297 ASSERT (ValueArray != NULL);
298 CopyMem (ValueArray, NvRamMap, MenuOption->ThisTag->StorageWidth);
299 } else {
300 CopyMem (&Value, NvRamMap, MenuOption->ThisTag->StorageWidth);
301 CopyMem (gPreviousValue, NvRamMap, MenuOption->ThisTag->StorageWidth);
302 }
303
304 Number = Value;
305 if (Tag->Operand == EFI_IFR_ORDERED_LIST_OP) {
306 Status = GetSelectionInputPopUp (MenuOption, Tag, MenuOption->ThisTag->StorageWidth, ValueArray, &KeyValue);
307 } else {
308 Status = GetSelectionInputPopUp (MenuOption, Tag, 1, &Value, &KeyValue);
309 }
310
311 if (!EFI_ERROR (Status)) {
312 if (Tag->Operand == EFI_IFR_ORDERED_LIST_OP) {
313 CopyMem (NvRamMap, ValueArray, MenuOption->ThisTag->StorageWidth);
314 FreePool (ValueArray);
315 } else {
316 //
317 // Since the value can be one byte long or two bytes long, do a CopyMem based on StorageWidth
318 //
319 CopyMem (NvRamMap, &Value, Tag->StorageWidth);
320 MenuOption->ThisTag->Key = KeyValue;
321 }
322 //
323 // If a late check is required save off the information. This is used when consistency checks
324 // are required, but certain values might be bound by an impossible consistency check such as
325 // if two questions are bound by consistency checks and each only has two possible choices, there
326 // would be no way for a user to switch the values. Thus we require late checking.
327 //
328 if (Tag->Flags & EFI_IFR_FLAG_LATE_CHECK) {
329 CopyMem (&Tag->OldValue, &Value, Tag->StorageWidth);
330 } else {
331 //
332 // In theory, passing the value and the Id are sufficient to determine what needs
333 // to be done. The Id is the key to look for the entry needed in the Inconsistency
334 // database. That will yields operand and ID data - and since the ID's correspond
335 // to the NV storage, we can determine the values for other IDs there.
336 //
337 if (ValueIsNotValid (TRUE, 0, Tag, FileFormTags, &PopUp)) {
338 if (PopUp == 0x0000) {
339 //
340 // Restore Old Value
341 //
342 if (!Tag->Suppress && !Tag->GrayOut) {
343 CopyMem (NvRamMap, &Number, MenuOption->ThisTag->StorageWidth);
344 }
345 break;
346 }
347
348 StringPtr = GetToken (PopUp, MenuOption->Handle);
349
350 CreatePopUp (GetStringWidth (StringPtr) / 2, 3, &NullCharacter, StringPtr, &NullCharacter);
351
352 do {
353 Status = WaitForKeyStroke (&Key);
354
355 switch (Key.UnicodeChar) {
356
357 case CHAR_CARRIAGE_RETURN:
358 //
359 // Since the value can be one byte long or two bytes long, do a CopyMem based on StorageWidth
360 //
361 CopyMem (NvRamMap, &Number, MenuOption->ThisTag->StorageWidth);
362 FreePool (StringPtr);
363 break;
364
365 default:
366 break;
367 }
368 } while (Key.UnicodeChar != CHAR_CARRIAGE_RETURN);
369 }
370 }
371
372 UpdateStatusBar (NV_UPDATE_REQUIRED, Tag->Flags, TRUE);
373 } else {
374 if (Tag->Operand == EFI_IFR_ORDERED_LIST_OP) {
375 FreePool (ValueArray);
376 }
377
378 return EFI_SUCCESS;
379 }
380 } else {
381 for (Index = MenuOption->TagIndex; MenuOption->Tags[Index].Operand != EFI_IFR_END_ONE_OF_OP; Index++) {
382 //
383 // We found an option - which assumedly has a string. We will eventually have to support
384 // wrapping of strings. For now, let's pretend they don't wrap and code that up.
385 //
386 if (MenuOption->Tags[Index].Operand == EFI_IFR_ONE_OF_OPTION_OP) {
387 if (OrderedList) {
388 if (!Initialized) {
389 //
390 // If the first entry is invalid, then the "default" settings are based on what is reflected
391 // in the order of the op-codes
392 //
393 ((UINT8 *) NvRamMap)[Index - MenuOption->TagIndex - 1] = (UINT8) MenuOption->Tags[Index].Value;
394 }
395 //
396 // Only display 3 lines of stuff at most
397 //
398 if ((Index - MenuOption->TagIndex) > ORDERED_LIST_SIZE) {
399 break;
400 }
401
402 if (((Index - MenuOption->TagIndex) != 1) && !Skip) {
403 Character[0] = LEFT_ONEOF_DELIMITER;
404 NewStrCat (OptionString[0], Character);
405 }
406
407 MenuOption->ThisTag->NumberOfLines = (UINT16) (Index - MenuOption->TagIndex);
408 if (!Initialized) {
409 StringPtr = GetToken (MenuOption->Tags[Index].Text, MenuOption->Handle);
410 } else {
411 for (Value = (UINT16) (MenuOption->TagIndex + 1);
412 MenuOption->Tags[Value].Operand != EFI_IFR_END_ONE_OF_OP;
413 Value++
414 ) {
415 if (MenuOption->Tags[Value].Value == ((UINT8 *) NvRamMap)[Index - MenuOption->TagIndex - 1]) {
416 StringPtr = GetToken (MenuOption->Tags[Value].Text, MenuOption->Handle);
417 break;
418 }
419 }
420
421 if (MenuOption->Tags[Value].Operand == EFI_IFR_END_ONE_OF_OP) {
422 Skip = TRUE;
423 continue;
424 }
425 }
426
427 Skip = FALSE;
428 NewStrCat (OptionString[0], StringPtr);
429 Character[0] = RIGHT_ONEOF_DELIMITER;
430 NewStrCat (OptionString[0], Character);
431 Character[0] = CHAR_CARRIAGE_RETURN;
432 NewStrCat (OptionString[0], Character);
433
434 //
435 // Remove Buffer allocated for StringPtr after it has been used.
436 //
437 FreePool (StringPtr);
438 } else {
439 //
440 // The option value is the same as what is stored in NV store. Print this.
441 //
442 if (!CompareMem (&(MenuOption->Tags[Index].Value), NvRamMap, MenuOption->ThisTag->StorageWidth)) {
443 StringPtr = GetToken (MenuOption->Tags[Index].Text, MenuOption->Handle);
444 NewStrCat (OptionString[0], StringPtr);
445 Character[0] = RIGHT_ONEOF_DELIMITER;
446 NewStrCat (OptionString[0], Character);
447 //
448 // Remove Buffer allocated for StringPtr after it has been used.
449 //
450 FreePool (StringPtr);
451 Default = 0;
452 break;
453 }
454
455 if ((MenuOption->Tags[Index].Flags & EFI_IFR_FLAG_DEFAULT) == 1) {
456 Default = MenuOption->Tags[Index].Text;
457 Value = MenuOption->Tags[Index].Value;
458 };
459 }
460 }
461 }
462 //
463 // We didn't find a value that matched a setting in the NVRAM Map - display default - set default
464 //
465 if (Default != 0) {
466 //
467 // Since the value can be one byte long or two bytes long, do a CopyMem based on StorageWidth
468 //
469 CopyMem (NvRamMap, &Value, MenuOption->ThisTag->StorageWidth);
470
471 StringPtr = GetToken ((UINT16) Default, MenuOption->Handle);
472 NewStrCat (OptionString[0], StringPtr);
473 Character[0] = RIGHT_ONEOF_DELIMITER;
474 NewStrCat (OptionString[0], Character);
475 //
476 // Remove Buffer allocated for StringPtr after it has been used.
477 //
478 FreePool (StringPtr);
479 }
480 }
481 break;
482
483 case EFI_IFR_CHECKBOX_OP:
484 //
485 // If the op-code we are looking at is larger than the latest created NvMap - we likely encountered a dynamically
486 // created entry which has an expanded NvMap requirement. We won't save this information - but we need to adjust
487 // the NvMap so that we can properly display the information
488 //
489 if ((UINTN) (Tag->StorageStart + Tag->StorageWidth) > VariableDefinition->VariableFakeSize) {
490 AdjustNvMap (FileFormTags, MenuOption);
491 NvRamMap = (UINT16 *) &VariableDefinition->NvRamMap[Tag->StorageStart];
492 }
493
494 Default = Tag->Flags & 1;
495 //
496 // If hit spacebar, set or unset Tag[TagIndex].Flags based on it's previous value - BOOLEAN
497 //
498 *OptionString = AllocateZeroPool ((gOptionBlockWidth + 1) * 2 * gScreenDimensions.BottomRow);
499 ASSERT (*OptionString);
500
501 //
502 // Since Checkboxes are BOOLEAN values, bit 0 of the Flags bit defines the default option, therefore, if
503 // the default option (only one option for checkboxes) is on, then the default value is on. Tag.Default is not
504 // an active field for Checkboxes.
505 //
506 StrnCpy (OptionString[0], (CHAR16 *) LEFT_CHECKBOX_DELIMITER, 1);
507
508 //
509 // Since this is a BOOLEAN operation, flip bit 0 upon selection
510 //
511 if (Selected) {
512 Tag->Value = (UINT16) (Tag->Value ^ 1);
513 *(UINT8 *) NvRamMap = (UINT8) (Tag->Value & 1);
514 UpdateStatusBar (NV_UPDATE_REQUIRED, Tag->Flags, TRUE);
515 }
516
517 if ((*(UINT8 *) NvRamMap & 1) == 0x01) {
518 NewStrCat (OptionString[0], (CHAR16 *) CHECK_ON);
519 //
520 // If someone reset default variables - we may need to reload from our NvMapping....
521 //
522 Tag->Value = *(UINT8 *) NvRamMap;
523 } else {
524 //
525 // If someone reset default variables - we may need to reload from our NvMapping....
526 //
527 NewStrCat (OptionString[0], (CHAR16 *) CHECK_OFF);
528 Tag->Value = *(UINT8 *) NvRamMap;
529 }
530
531 NewStrCat (OptionString[0], (CHAR16 *) RIGHT_CHECKBOX_DELIMITER);
532 NewStrCat (OptionString[0], StringPtr);
533 break;
534
535 case EFI_IFR_NUMERIC_OP:
536 //
537 // If the op-code we are looking at is larger than the latest created NvMap - we likely encountered a dynamically
538 // created entry which has an expanded NvMap requirement. We won't save this information - but we need to adjust
539 // the NvMap so that we can properly display the information
540 //
541 if ((UINTN) (Tag->StorageStart + Tag->StorageWidth) > VariableDefinition->VariableFakeSize) {
542 AdjustNvMap (FileFormTags, MenuOption);
543 NvRamMap = (UINT16 *) &VariableDefinition->NvRamMap[Tag->StorageStart];
544 }
545
546 *OptionString = AllocateZeroPool ((gOptionBlockWidth + 1) * 2 * gScreenDimensions.BottomRow);
547 ASSERT (*OptionString);
548
549 //
550 // Add left delimeter to string
551 //
552 *OptionString[0] = LEFT_NUMERIC_DELIMITER;
553
554 //
555 // Retrieve the current numeric value
556 //
557 if (Selected) {
558 //
559 // Go ask for input
560 //
561 if (Tag->Step == 0) {
562 //
563 // Manual Input
564 //
565 Status = GetNumericInput (MenuOption, FileFormTagsHead, TRUE, Tag, REGULAR_NUMERIC, &Number);
566 if (!EFI_ERROR (Status)) {
567 CopyMem (gPreviousValue, NvRamMap, MenuOption->ThisTag->StorageWidth);
568 UpdateStatusBar (NV_UPDATE_REQUIRED, Tag->Flags, TRUE);
569
570 //
571 // Since the value can be one byte long or two bytes long, do a CopyMem based on StorageWidth
572 //
573 CopyMem (NvRamMap, &Number, MenuOption->ThisTag->StorageWidth);
574 } else {
575 return EFI_SUCCESS;
576 }
577 } else {
578 //
579 // Auto selection from list
580 //
581 if ((((Tag->StorageWidth == 1) && (UINT8) (*NvRamMap) > Tag->Maximum) || ((UINT8) (*NvRamMap) < Tag->Minimum)) ||
582 (((Tag->StorageWidth == 2) && *NvRamMap > Tag->Maximum) || (*NvRamMap < Tag->Minimum))
583 ) {
584 //
585 // Seed Number with valid value if currently invalid
586 //
587 Number = Tag->Default;
588 } else {
589 if (Tag->StorageWidth == 1) {
590 Number = (UINT8) (*NvRamMap);
591 } else {
592 Number = *NvRamMap;
593 }
594 }
595
596 Status = GetNumericInput (MenuOption, FileFormTagsHead, FALSE, Tag, REGULAR_NUMERIC, &Number);
597 if (!EFI_ERROR (Status)) {
598 CopyMem (gPreviousValue, NvRamMap, MenuOption->ThisTag->StorageWidth);
599 UpdateStatusBar (NV_UPDATE_REQUIRED, Tag->Flags, TRUE);
600
601 //
602 // Since the value can be one byte long or two bytes long, do a CopyMem based on StorageWidth
603 //
604 CopyMem (NvRamMap, &Number, MenuOption->ThisTag->StorageWidth);
605 } else {
606 return EFI_SUCCESS;
607 }
608 }
609 } else {
610 if (((Tag->StorageWidth == 1) && (UINT8) (*NvRamMap) <= Tag->Maximum && (UINT8) (*NvRamMap) >= Tag->Minimum) ||
611 ((Tag->StorageWidth == 2) && *NvRamMap <= Tag->Maximum && *NvRamMap >= Tag->Minimum)
612 ) {
613 if (Tag->StorageWidth == 1) {
614 Number = (UINT8) (*NvRamMap);
615 } else {
616 Number = *NvRamMap;
617 }
618 UnicodeValueToString (
619 FormattedNumber,
620 FALSE,
621 (UINTN) Number,
622 (sizeof (FormattedNumber) / sizeof (FormattedNumber[0]))
623 );
624 Number = (UINT16) GetStringWidth (FormattedNumber);
625 StrnCpy (OptionString[0] + 1, FormattedNumber, Number);
626 } else {
627 //
628 // If *NvRamMap isn't within parameters, set it to within parameters
629 //
630 //
631 // Since the value can be one byte long or two bytes long, do a CopyMem based on StorageWidth
632 //
633 CopyMem (NvRamMap, &Tag->Default, MenuOption->ThisTag->StorageWidth);
634 Number = Tag->Default;
635
636 UnicodeValueToString (
637 FormattedNumber,
638 FALSE,
639 (UINTN) Number,
640 (sizeof (FormattedNumber) / sizeof (FormattedNumber[0]))
641 );
642 Number = (UINT16) GetStringWidth (FormattedNumber);
643 StrnCpy (OptionString[0] + 1, FormattedNumber, Number);
644 }
645
646 *(OptionString[0] + Number / 2) = RIGHT_NUMERIC_DELIMITER;
647 NewStrCat (OptionString[0] + (Number / 2) + 1, StringPtr);
648 }
649 break;
650
651 case EFI_IFR_DATE_OP:
652 //
653 // If the op-code we are looking at is larger than the latest created NvMap - we likely encountered a dynamically
654 // created entry which has an expanded NvMap requirement. We won't save this information - but we need to adjust
655 // the NvMap so that we can properly display the information
656 //
657 if ((UINTN) (Tag->StorageStart + Tag->StorageWidth) > VariableDefinition->VariableFakeSize) {
658 AdjustNvMap (FileFormTags, MenuOption);
659 NvRamMap = (UINT16 *) &VariableDefinition->NvRamMap[Tag->StorageStart];
660 }
661
662 Status = gRT->GetTime (&Time, NULL);
663 if (EFI_ERROR (Status)) {
664 return EFI_SUCCESS;
665 }
666 //
667 // This for loop advances Index till it points immediately after a date entry. We can then
668 // subtract MenuOption->TagIndex from Index and find out relative to the start of the Date
669 // structure which field we were in. For instance, if TagIndex was 52, and we advanced Index
670 // to 53 and found it to no longer point to a date operand, we were pointing to the last of 3
671 // date operands.
672 //
673 //
674 // This has BUGBUG potential....fix this - if someone wants to ask two DATE questions in a row.....code
675 // against such silliness.
676 //
677 // Also, we want to internationalize the order of the date information. We need to code for it as well.
678 //
679 for (Index = MenuOption->TagIndex; MenuOption->Tags[Index].Operand == EFI_IFR_DATE_OP; Index++)
680 ;
681
682 //
683 // Count 0 = We entered on the first Date operand
684 // Count 1 = We entered on the second Date operand
685 // Count 2 = We entered on the third Date operand
686 //
687 Count = 3 - (Index - MenuOption->TagIndex);
688 if (Count > 2) {
689 return EFI_SUCCESS;
690 }
691 //
692 // This is similar to numerics, except for the following:
693 // We will under normal circumstances get 3 consecutive calls
694 // to process this opcodes data.
695 //
696 *OptionString = AllocateZeroPool ((gOptionBlockWidth + 1) * 2 * gScreenDimensions.BottomRow);
697 ASSERT (*OptionString);
698
699 switch (Count) {
700 case 0:
701 if (Selected) {
702 Number = (UINT16) Time.Month;
703
704 if (Tag->Step == 0) {
705 MenuOption->OptCol++;
706 Status = GetNumericInput (MenuOption, FileFormTagsHead, TRUE, Tag, DATE_NUMERIC, &Number);
707 } else {
708 //
709 // Seed value with current setting
710 //
711 Tag->Value = (UINT16) Time.Month;
712 Status = GetNumericInput (MenuOption, FileFormTagsHead, FALSE, Tag, DATE_NUMERIC, &Number);
713 }
714
715 if (!EFI_ERROR (Status)) {
716 Time.Month = (UINT8) Number;
717 gRT->SetTime (&Time);
718 }
719 }
720
721 VariableDefinition->FakeNvRamMap[Tag->Id] = Time.Month;
722 *OptionString[0] = LEFT_NUMERIC_DELIMITER;
723
724 UnicodeValueToString (
725 FormattedNumber,
726 FALSE,
727 (UINTN) Time.Month,
728 (sizeof (FormattedNumber) / sizeof (FormattedNumber[0]))
729 );
730 Number = (UINT16) GetStringWidth (FormattedNumber);
731
732 if (Number == 4) {
733 FormattedNumber[2] = FormattedNumber[1];
734 FormattedNumber[1] = FormattedNumber[0];
735 FormattedNumber[0] = L'0';
736 Number = 6;
737 }
738
739 StrnCpy (OptionString[0] + 1, FormattedNumber, Number);
740 *(OptionString[0] + Number / 2) = DATE_SEPARATOR;
741 StrCat (OptionString[0] + (Number / 2) + 1, StringPtr);
742 break;
743
744 case 1:
745 if (Selected) {
746 Number = (UINT16) Time.Day;
747
748 if (Tag->Step == 0) {
749 Status = GetNumericInput (MenuOption, FileFormTagsHead, TRUE, Tag, DATE_NUMERIC, &Number);
750 } else {
751 //
752 // Seed value with current setting
753 //
754 Tag->Value = (UINT16) Time.Day;
755 Status = GetNumericInput (MenuOption, FileFormTagsHead, FALSE, Tag, DATE_NUMERIC, &Number);
756 }
757
758 if (!EFI_ERROR (Status)) {
759 Time.Day = (UINT8) Number;
760 gRT->SetTime (&Time);
761 }
762 }
763
764 VariableDefinition->FakeNvRamMap[Tag->Id] = Time.Day;
765 SetUnicodeMem (OptionString[0], 4, L' ');
766
767 UnicodeValueToString (
768 FormattedNumber,
769 FALSE,
770 (UINTN) Time.Day,
771 (sizeof (FormattedNumber) / sizeof (FormattedNumber[0]))
772 );
773 Number = (UINT16) GetStringWidth (FormattedNumber);
774 if (Number == 4) {
775 FormattedNumber[2] = FormattedNumber[1];
776 FormattedNumber[1] = FormattedNumber[0];
777 FormattedNumber[0] = L'0';
778 Number = 6;
779 }
780
781 StrnCpy (OptionString[0] + 4, FormattedNumber, Number);
782 *(OptionString[0] + Number / 2 + 3) = DATE_SEPARATOR;
783 StrCat (OptionString[0] + (Number / 2) + 4, StringPtr);
784 break;
785
786 case 2:
787 if (Selected) {
788 Number = (UINT16) Time.Year;
789
790 if (Tag->Step == 0) {
791 Status = GetNumericInput (MenuOption, FileFormTagsHead, TRUE, Tag, DATE_NUMERIC, &Number);
792 } else {
793 //
794 // Seed value with current setting
795 //
796 Status = GetNumericInput (MenuOption, FileFormTagsHead, FALSE, Tag, DATE_NUMERIC, &Number);
797 }
798
799 if (!EFI_ERROR (Status)) {
800 Time.Year = (UINT16) Number;
801 gRT->SetTime (&Time);
802 }
803 }
804
805 Tag->Value = (UINT16) Time.Year;
806 VariableDefinition->FakeNvRamMap[Tag->Id] = (UINT8) Tag->Value;
807 VariableDefinition->FakeNvRamMap[Tag->Id + 1] = (UINT8) (Tag->Value >> 8);
808 SetUnicodeMem (OptionString[0], 7, L' ');
809 UnicodeValueToString (
810 FormattedNumber,
811 FALSE,
812 (UINTN) Time.Year,
813 (sizeof (FormattedNumber) / sizeof (FormattedNumber[0]))
814 );
815 Number = (UINT16) GetStringWidth (FormattedNumber);
816 StrnCpy (OptionString[0] + 7, FormattedNumber, Number);
817 *(OptionString[0] + Number / 2 + 6) = RIGHT_NUMERIC_DELIMITER;
818 StrCat (OptionString[0] + (Number / 2) + 7, StringPtr);
819 break;
820 }
821
822 break;
823
824 //
825 // BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG
826 // We need to add code to support the NVRam storage version of Date - this is the 1% case where someone
827 // might want to set an alarm and actually preserve the data in NVRam so a driver can pick up the instruction
828 // BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG
829 //
830 case EFI_IFR_TIME_OP:
831 //
832 // If the op-code we are looking at is larger than the latest created NvMap - we likely encountered a dynamically
833 // created entry which has an expanded NvMap requirement. We won't save this information - but we need to adjust
834 // the NvMap so that we can properly display the information
835 //
836 if ((UINTN) (Tag->StorageStart + Tag->StorageWidth) > VariableDefinition->VariableFakeSize) {
837 AdjustNvMap (FileFormTags, MenuOption);
838 NvRamMap = (UINT16 *) &VariableDefinition->NvRamMap[Tag->StorageStart];
839 }
840
841 Status = gRT->GetTime (&Time, NULL);
842 if (EFI_ERROR (Status)) {
843 return EFI_SUCCESS;
844 }
845 //
846 // This is similar to numerics, except for the following:
847 // We will under normal circumstances get 3 consecutive calls
848 // to process this opcodes data.
849 //
850 *OptionString = AllocateZeroPool ((gOptionBlockWidth + 1) * 2 * gScreenDimensions.BottomRow);
851 ASSERT (*OptionString);
852
853 //
854 // This for loop advances Index till it points immediately after a date entry. We can then
855 // subtract MenuOption->TagIndex from Index and find out relative to the start of the Date
856 // structure which field we were in. For instance, if TagIndex was 52, and we advanced Index
857 // to 53 and found it to no longer point to a date operand, we were pointing to the last of 3
858 // date operands.
859 //
860 for (Index = MenuOption->TagIndex; MenuOption->Tags[Index].Operand == EFI_IFR_TIME_OP; Index++)
861 ;
862 //
863 // Count 0 = We entered on the first Date operand
864 // Count 1 = We entered on the second Date operand
865 // Count 2 = We entered on the third Date operand
866 //
867 Count = 3 - (Index - MenuOption->TagIndex);
868 if (Count > 2) {
869 return EFI_SUCCESS;
870 }
871
872 switch (Count) {
873 case 0:
874 Number = Time.Hour;
875 break;
876
877 case 1:
878 Number = Time.Minute;
879 break;
880
881 case 2:
882 Number = Time.Second;
883 }
884 //
885 // Retrieve the current numeric value
886 //
887 if (Selected) {
888 //
889 // Go ask for input
890 //
891 if (Tag->Step == 0) {
892 //
893 // Manual Input
894 //
895 Status = GetNumericInput (MenuOption, FileFormTagsHead, TRUE, Tag, TIME_NUMERIC, &Number);
896 if (!EFI_ERROR (Status)) {
897 *NvRamMap = Number;
898 Time.Nanosecond = 0;
899 gRT->SetTime (&Time);
900 } else {
901 return EFI_SUCCESS;
902 }
903 } else {
904 //
905 // Auto selection from list
906 //
907 Status = GetNumericInput (MenuOption, FileFormTagsHead, FALSE, Tag, TIME_NUMERIC, &Number);
908 if (!EFI_ERROR (Status)) {
909 *NvRamMap = Number;
910 } else {
911 return EFI_SUCCESS;
912 }
913 }
914
915 switch (Count) {
916 case 0:
917 Time.Hour = (UINT8) Number;
918 break;
919
920 case 1:
921 Time.Minute = (UINT8) Number;
922 break;
923
924 case 2:
925 Time.Second = (UINT8) Number;
926 }
927
928 Time.Nanosecond = 0;
929 gRT->SetTime (&Time);
930 } else {
931 switch (Count) {
932 case 0:
933 *OptionString[0] = LEFT_NUMERIC_DELIMITER;
934 UnicodeValueToString (
935 FormattedNumber,
936 FALSE,
937 (UINTN) Time.Hour,
938 (sizeof (FormattedNumber) / sizeof (FormattedNumber[0]))
939 );
940 Number = (UINT16) GetStringWidth (FormattedNumber);
941 if (Number == 4) {
942 FormattedNumber[2] = FormattedNumber[1];
943 FormattedNumber[1] = FormattedNumber[0];
944 FormattedNumber[0] = L'0';
945 Number = 6;
946 }
947
948 StrnCpy (OptionString[0] + 1, FormattedNumber, Number);
949 *(OptionString[0] + Number / 2) = TIME_SEPARATOR;
950 StrCat (OptionString[0] + (Number / 2) + 1, StringPtr);
951 break;
952
953 case 1:
954 SetUnicodeMem (OptionString[0], 4, L' ');
955 UnicodeValueToString (
956 FormattedNumber,
957 FALSE,
958 (UINTN) Time.Minute,
959 (sizeof (FormattedNumber) / sizeof (FormattedNumber[0]))
960 );
961 Number = (UINT16) GetStringWidth (FormattedNumber);
962 if (Number == 4) {
963 FormattedNumber[2] = FormattedNumber[1];
964 FormattedNumber[1] = FormattedNumber[0];
965 FormattedNumber[0] = L'0';
966 Number = 6;
967 }
968
969 StrnCpy (OptionString[0] + 4, FormattedNumber, Number);
970 *(OptionString[0] + Number / 2 + 3) = TIME_SEPARATOR;
971 StrCat (OptionString[0] + (Number / 2) + 4, StringPtr);
972 break;
973
974 case 2:
975 SetUnicodeMem (OptionString[0], 7, L' ');
976 UnicodeValueToString (
977 FormattedNumber,
978 FALSE,
979 (UINTN) Time.Second,
980 (sizeof (FormattedNumber) / sizeof (FormattedNumber[0]))
981 );
982 Number = (UINT16) GetStringWidth (FormattedNumber);
983 if (Number == 4) {
984 FormattedNumber[2] = FormattedNumber[1];
985 FormattedNumber[1] = FormattedNumber[0];
986 FormattedNumber[0] = L'0';
987 Number = 6;
988 }
989
990 StrnCpy (OptionString[0] + 7, FormattedNumber, Number);
991 *(OptionString[0] + Number / 2 + 6) = RIGHT_NUMERIC_DELIMITER;
992 StrCat (OptionString[0] + (Number / 2) + 7, StringPtr);
993 break;
994 }
995 //
996 // BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG
997 // We need to add code to support the NVRam storage version of Date - this is the 1% case where someone
998 // might want to set an alarm and actually preserve the data in NVRam so a driver can pick up the instruction
999 // BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG BUGBUG
1000 //
1001 }
1002 break;
1003
1004 case EFI_IFR_STRING_OP:
1005 //
1006 // If the op-code we are looking at is larger than the latest created NvMap - we likely encountered a dynamically
1007 // created entry which has an expanded NvMap requirement. We won't save this information - but we need to adjust
1008 // the NvMap so that we can properly display the information
1009 //
1010 if ((UINTN) (Tag->StorageStart + Tag->StorageWidth) > VariableDefinition->VariableFakeSize) {
1011 AdjustNvMap (FileFormTags, MenuOption);
1012 NvRamMap = (UINT16 *) &VariableDefinition->NvRamMap[Tag->StorageStart];
1013 }
1014
1015 *OptionString = AllocateZeroPool ((gOptionBlockWidth + 1) * 2 * gScreenDimensions.BottomRow);
1016 ASSERT (*OptionString);
1017
1018 if (Selected) {
1019 StringPtr = AllocateZeroPool (Tag->Maximum);
1020 ASSERT (StringPtr);
1021
1022 Status = ReadString (MenuOption, StringPtr);
1023
1024 if (!EFI_ERROR (Status)) {
1025 CopyMem (gPreviousValue, NvRamMap, MenuOption->ThisTag->StorageWidth);
1026 CopyMem (&VariableDefinition->NvRamMap[Tag->StorageStart], StringPtr, Tag->StorageWidth);
1027
1028 UpdateStatusBar (NV_UPDATE_REQUIRED, Tag->Flags, TRUE);
1029 }
1030
1031 FreePool (StringPtr);
1032 return Status;
1033 } else {
1034 for (Index = 0; Index < gOptionBlockWidth; Index++) {
1035 if (VariableDefinition->NvRamMap[Tag->StorageStart + (Index * 2)] != 0x0000) {
1036 CopyMem (OptionString[0] + Index, &VariableDefinition->NvRamMap[Tag->StorageStart + (Index * 2)], 2);
1037 } else {
1038 if (Index == 0) {
1039 *(OptionString[0] + Index) = '_';
1040 *(OptionString[0] + 1 + Index) = 0;
1041 }
1042 break;
1043 }
1044 }
1045
1046 return Status;
1047 }
1048
1049 case EFI_IFR_PASSWORD_OP:
1050 //
1051 // If the op-code we are looking at is larger than the latest created NvMap - we likely encountered a dynamically
1052 // created entry which has an expanded NvMap requirement. We won't save this information - but we need to adjust
1053 // the NvMap so that we can properly display the information
1054 //
1055 if ((UINTN) (Tag->StorageStart + Tag->StorageWidth) > VariableDefinition->VariableFakeSize) {
1056 AdjustNvMap (FileFormTags, MenuOption);
1057 NvRamMap = (UINT16 *) &VariableDefinition->NvRamMap[Tag->StorageStart];
1058 }
1059
1060 if (Selected) {
1061 StringPtr = AllocateZeroPool (Tag->Maximum);
1062 ASSERT (StringPtr);
1063
1064 //
1065 // If interactive, read the password and do the appropriate callbacks in that routine.
1066 // Since interactive passwords assume to handle the password data in a separate variable
1067 // storage, we don't need to do more than what is below for password callbacks
1068 //
1069 if (Tag->Flags & EFI_IFR_FLAG_INTERACTIVE) {
1070 MenuOption->Tags[0].CallbackHandle = FileFormTags->FormTags.Tags[0].CallbackHandle;
1071 Status = ReadPassword (MenuOption, TRUE, Tag, PageData, FALSE, FileFormTags, StringPtr);
1072 ZeroMem (StringPtr, Tag->Maximum);
1073
1074 if (EFI_ERROR (Status)) {
1075 if (Status == EFI_NOT_READY) {
1076 FreePool (StringPtr);
1077 return EFI_SUCCESS;
1078 }
1079 }
1080
1081 Status = ReadPassword (MenuOption, TRUE, Tag, PageData, TRUE, FileFormTags, StringPtr);
1082 FreePool (StringPtr);
1083 return EFI_SUCCESS;
1084 }
1085
1086 for (Index = 0; Index < Tag->Maximum; Index++) {
1087 if (VariableDefinition->NvRamMap[Tag->StorageStart + Index] != 0x00) {
1088 //
1089 // There is something there! Prompt for password
1090 //
1091 Status = ReadPassword (MenuOption, TRUE, Tag, PageData, FALSE, FileFormTags, StringPtr);
1092 if (EFI_ERROR (Status)) {
1093 FreePool (StringPtr);
1094 return EFI_SUCCESS;
1095 }
1096
1097 if (Tag->Encoding == 1) {
1098 EncodePassword (StringPtr, (UINT8) Tag->Maximum);
1099 Status = CompareMem (StringPtr, &VariableDefinition->NvRamMap[Tag->StorageStart], Tag->Maximum);
1100 } else {
1101 Status = CompareMem (StringPtr, &VariableDefinition->NvRamMap[Tag->StorageStart], Tag->Maximum);
1102 }
1103
1104 if (Status != 0) {
1105 FreePool (StringPtr);
1106 return EFI_SUCCESS;
1107 } else {
1108 break;
1109 }
1110 }
1111 }
1112 //
1113 // Clean the string
1114 //
1115 ZeroMem (StringPtr, Tag->Maximum);
1116
1117 //
1118 // No password set! Go ahead and prompt the user for a password.
1119 //
1120 Status = ReadPassword (MenuOption, FALSE, Tag, PageData, FALSE, FileFormTags, StringPtr);
1121
1122 if (EFI_ERROR (Status)) {
1123 //
1124 // User couldn't figure out how to type two identical passwords
1125 //
1126 FreePool (StringPtr);
1127 return EFI_SUCCESS;
1128 }
1129 //
1130 // Very simple example of how one MIGHT do password encoding
1131 //
1132 if (Tag->Encoding == 1) {
1133 EncodePassword (StringPtr, (UINT8) Tag->Maximum);
1134 }
1135
1136 TmpNvRamMap = AllocatePool (VariableDefinition->VariableSize);
1137 ASSERT (TmpNvRamMap != NULL);
1138
1139 Count = VariableDefinition->VariableSize;
1140
1141 if ((FormCallback != NULL) && (FormCallback->NvRead != NULL)) {
1142 Status = FormCallback->NvRead (
1143 FormCallback,
1144 VariableDefinition->VariableName,
1145 &VariableDefinition->Guid,
1146 NULL,
1147 &Count,
1148 (VOID *) TmpNvRamMap
1149 );
1150 } else {
1151 Status = gRT->GetVariable (
1152 VariableDefinition->VariableName,
1153 &VariableDefinition->Guid,
1154 NULL,
1155 &Count,
1156 (VOID *) TmpNvRamMap
1157 );
1158 }
1159
1160 CopyMem (&VariableDefinition->NvRamMap[Tag->StorageStart], StringPtr, Tag->StorageWidth);
1161 CopyMem (&TmpNvRamMap[Tag->StorageStart], StringPtr, Tag->StorageWidth);
1162
1163 if ((FormCallback != NULL) && (FormCallback->NvWrite != NULL)) {
1164 Status = FormCallback->NvWrite (
1165 FormCallback,
1166 VariableDefinition->VariableName,
1167 &VariableDefinition->Guid,
1168 EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
1169 VariableDefinition->VariableSize,
1170 (VOID *) TmpNvRamMap,
1171 &gResetRequired
1172 );
1173 } else {
1174 Status = gRT->SetVariable (
1175 VariableDefinition->VariableName,
1176 &VariableDefinition->Guid,
1177 EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
1178 VariableDefinition->VariableSize,
1179 (VOID *) TmpNvRamMap
1180 );
1181 }
1182
1183 FreePool (TmpNvRamMap);
1184 FreePool (StringPtr);
1185 break;
1186 }
1187
1188 default:
1189 break;
1190 }
1191
1192 return EFI_SUCCESS;
1193 }
1194
1195 /**
1196 Split StringPtr to several lines of strings stored in FormattedString and the glyph width of
1197 each line cannot exceed gHelpBlockWidth.
1198
1199 @param StringPtr The pointer of string
1200 @param FormattedString The pointer of format string
1201 @param RowCount The count of row
1202
1203 **/
1204 VOID
1205 ProcessHelpString (
1206 IN CHAR16 *StringPtr,
1207 OUT CHAR16 **FormattedString,
1208 IN UINTN RowCount
1209 )
1210 {
1211 CONST UINTN BlockWidth = (UINTN) gHelpBlockWidth - 1;
1212 UINTN AllocateSize;
1213 //
1214 // [PrevCurrIndex, CurrIndex) forms a range of a screen-line
1215 //
1216 UINTN CurrIndex;
1217 UINTN PrevCurrIndex;
1218 UINTN LineCount;
1219 UINTN VirtualLineCount;
1220 //
1221 // GlyphOffset stores glyph width of current screen-line
1222 //
1223 UINTN GlyphOffset;
1224 //
1225 // GlyphWidth equals to 2 if we meet width directive
1226 //
1227 UINTN GlyphWidth;
1228 //
1229 // during scanning, we remember the position of last space character
1230 // in case that if next word cannot put in current line, we could restore back to the position
1231 // of last space character
1232 // while we should also remmeber the glyph width of the last space character for restoring
1233 //
1234 UINTN LastSpaceIndex;
1235 UINTN LastSpaceGlyphWidth;
1236 //
1237 // every time we begin to form a new screen-line, we should remember glyph width of single character
1238 // of last line
1239 //
1240 UINTN LineStartGlyphWidth;
1241 UINTN *IndexArray;
1242 UINTN *OldIndexArray;
1243
1244 //
1245 // every three elements of IndexArray form a screen-line of string:[ IndexArray[i*3], IndexArray[i*3+1] )
1246 // IndexArray[i*3+2] stores the initial glyph width of single character. to save this is because we want
1247 // to bring the width directive of the last line to current screen-line.
1248 // e.g.: "\wideabcde ... fghi", if "fghi" also has width directive but is splitted to the next screen-line
1249 // different from that of "\wideabcde", we should remember the width directive.
1250 //
1251 AllocateSize = 0x20;
1252 IndexArray = AllocatePool (AllocateSize * sizeof (UINTN) * 3);
1253
1254 if (*FormattedString != NULL) {
1255 FreePool (*FormattedString);
1256 *FormattedString = NULL;
1257 }
1258
1259 for (PrevCurrIndex = 0, CurrIndex = 0, LineCount = 0, LastSpaceIndex = 0,
1260 IndexArray[0] = 0, GlyphWidth = 1, GlyphOffset = 0, LastSpaceGlyphWidth = 1, LineStartGlyphWidth = 1;
1261 (StringPtr[CurrIndex] != CHAR_NULL);
1262 CurrIndex ++) {
1263
1264 if (LineCount == AllocateSize) {
1265 AllocateSize += 0x10;
1266 OldIndexArray = IndexArray;
1267 IndexArray = AllocatePool (AllocateSize * sizeof (UINTN) * 3);
1268 CopyMem (IndexArray, OldIndexArray, LineCount * sizeof (UINTN) * 3);
1269 if (OldIndexArray != NULL) {
1270 FreePool (OldIndexArray);
1271 }
1272 }
1273
1274 switch (StringPtr[CurrIndex]) {
1275
1276 case NARROW_CHAR:
1277 case WIDE_CHAR:
1278 GlyphWidth = ((StringPtr[CurrIndex] == WIDE_CHAR) ? 2 : 1);
1279 if (CurrIndex == 0) {
1280 LineStartGlyphWidth = GlyphWidth;
1281 }
1282 break;
1283
1284 //
1285 // char is '\n'
1286 // "\r\n" isn't handled here, handled by case CHAR_CARRIAGE_RETURN
1287 //
1288 case CHAR_LINEFEED:
1289 //
1290 // Store a range of string as a line
1291 //
1292 IndexArray[LineCount*3] = PrevCurrIndex;
1293 IndexArray[LineCount*3+1] = CurrIndex;
1294 IndexArray[LineCount*3+2] = LineStartGlyphWidth;
1295 LineCount ++;
1296 //
1297 // Reset offset and save begin position of line
1298 //
1299 GlyphOffset = 0;
1300 LineStartGlyphWidth = GlyphWidth;
1301 PrevCurrIndex = CurrIndex + 1;
1302 break;
1303
1304 //
1305 // char is '\r'
1306 // "\r\n" and "\r" both are handled here
1307 //
1308 case CHAR_CARRIAGE_RETURN:
1309 if (StringPtr[CurrIndex + 1] == CHAR_LINEFEED) {
1310 //
1311 // next char is '\n'
1312 //
1313 IndexArray[LineCount*3] = PrevCurrIndex;
1314 IndexArray[LineCount*3+1] = CurrIndex;
1315 IndexArray[LineCount*3+2] = LineStartGlyphWidth;
1316 LineCount ++;
1317 CurrIndex ++;
1318 }
1319 GlyphOffset = 0;
1320 LineStartGlyphWidth = GlyphWidth;
1321 PrevCurrIndex = CurrIndex + 1;
1322 break;
1323
1324 //
1325 // char is space or other char
1326 //
1327 default:
1328 GlyphOffset += GlyphWidth;
1329 if (GlyphOffset >= BlockWidth) {
1330 if (LastSpaceIndex > PrevCurrIndex) {
1331 //
1332 // LastSpaceIndex points to space inside current screen-line,
1333 // restore to LastSpaceIndex
1334 // (Otherwise the word is too long to fit one screen-line, just cut it)
1335 //
1336 CurrIndex = LastSpaceIndex;
1337 GlyphWidth = LastSpaceGlyphWidth;
1338 } else if (GlyphOffset > BlockWidth) {
1339 //
1340 // the word is too long to fit one screen-line and we don't get the chance
1341 // of GlyphOffset == BlockWidth because GlyphWidth = 2
1342 //
1343 CurrIndex --;
1344 }
1345
1346 IndexArray[LineCount*3] = PrevCurrIndex;
1347 IndexArray[LineCount*3+1] = CurrIndex + 1;
1348 IndexArray[LineCount*3+2] = LineStartGlyphWidth;
1349 LineStartGlyphWidth = GlyphWidth;
1350 LineCount ++;
1351 //
1352 // Reset offset and save begin position of line
1353 //
1354 GlyphOffset = 0;
1355 PrevCurrIndex = CurrIndex + 1;
1356 }
1357
1358 //
1359 // LastSpaceIndex: remember position of last space
1360 //
1361 if (StringPtr[CurrIndex] == CHAR_SPACE) {
1362 LastSpaceIndex = CurrIndex;
1363 LastSpaceGlyphWidth = GlyphWidth;
1364 }
1365 break;
1366 }
1367 }
1368
1369 if (GlyphOffset > 0) {
1370 IndexArray[LineCount*3] = PrevCurrIndex;
1371 IndexArray[LineCount*3+1] = CurrIndex;
1372 IndexArray[LineCount*3+2] = GlyphWidth;
1373 LineCount ++;
1374 }
1375
1376 if (LineCount == 0) {
1377 //
1378 // in case we meet null string
1379 //
1380 IndexArray[0] = 0;
1381 IndexArray[1] = 1;
1382 //
1383 // we assume null string's glyph width is 1
1384 //
1385 IndexArray[1] = 1;
1386 LineCount ++;
1387 }
1388
1389 VirtualLineCount = RowCount * (LineCount / RowCount + (LineCount % RowCount > 0));
1390 *FormattedString = AllocateZeroPool (VirtualLineCount * (BlockWidth + 1) * sizeof (CHAR16) * 2);
1391
1392 for (CurrIndex = 0; CurrIndex < LineCount; CurrIndex ++) {
1393 *(*FormattedString + CurrIndex * 2 * (BlockWidth + 1)) = (CHAR16)((IndexArray[CurrIndex*3+2] == 2) ? WIDE_CHAR : NARROW_CHAR);
1394 StrnCpy (
1395 *FormattedString + CurrIndex * 2 * (BlockWidth + 1) + 1,
1396 StringPtr + IndexArray[CurrIndex*3],
1397 IndexArray[CurrIndex*3+1]-IndexArray[CurrIndex*3]
1398 );
1399 }
1400
1401 if (IndexArray != NULL) {
1402 FreePool (IndexArray);
1403 }
1404 }
1405
1406 VOID
1407 IfrToFormTag (
1408 IN UINT8 OpCode,
1409 IN EFI_TAG *TargetTag,
1410 IN VOID *FormData,
1411 EFI_VARIABLE_DEFINITION *VariableDefinitionsHead
1412 )
1413 {
1414 UINT16 TempValue;
1415 CHAR16 *VariableName;
1416 CHAR8 *AsciiString;
1417 EFI_VARIABLE_DEFINITION *VariableDefinitions;
1418 EFI_VARIABLE_DEFINITION *PreviousVariableDefinitions;
1419 STATIC UINT16 VariableSize;
1420 EFI_GUID Guid;
1421 STATIC UINT16 CurrentVariable;
1422 STATIC UINT16 CurrentVariable2;
1423 UINTN Index;
1424
1425 switch (OpCode) {
1426 case EFI_IFR_FORM_OP:
1427 CopyMem (&TargetTag->Id, &((EFI_IFR_FORM *) FormData)->FormId, sizeof (UINT16));
1428 CopyMem (&TargetTag->Text, &((EFI_IFR_FORM *) FormData)->FormTitle, sizeof (UINT16));
1429 TargetTag->VariableNumber = CurrentVariable;
1430 if (VariableDefinitionsHead != NULL) {
1431 VariableName = AllocateZeroPool (12);
1432 ASSERT (VariableName != NULL);
1433 CopyMem (VariableName, L"Setup", 12);
1434 VariableDefinitionsHead->VariableName = VariableName;
1435 VariableDefinitionsHead->VariableSize = VariableSize;
1436 CopyMem (&VariableDefinitionsHead->Guid, &Guid, sizeof (EFI_GUID));
1437 }
1438 break;
1439
1440 case EFI_IFR_SUBTITLE_OP:
1441 TargetTag->NumberOfLines = 1;
1442 CopyMem (&TargetTag->Text, &((EFI_IFR_SUBTITLE *) FormData)->SubTitle, sizeof (UINT16));
1443 TargetTag->VariableNumber = CurrentVariable;
1444 break;
1445
1446 case EFI_IFR_TEXT_OP:
1447 TargetTag->NumberOfLines = 1;
1448 CopyMem (&TargetTag->Text, &((EFI_IFR_TEXT *) FormData)->Text, sizeof (UINT16));
1449 CopyMem (&TargetTag->Help, &((EFI_IFR_TEXT *) FormData)->Help, sizeof (UINT16));
1450 TargetTag->VariableNumber = CurrentVariable;
1451
1452 //
1453 // To optimize the encoding size, certain opcodes have optional fields such as those
1454 // inside the if() statement. If the encoded length is the complete size, then we
1455 // know we have valid data encoded that we want to integrate
1456 //
1457 if (((EFI_IFR_TEXT *) FormData)->Header.Length == sizeof (EFI_IFR_TEXT)) {
1458 //
1459 // Text has no help associated with it, but in case there is a second entry due to
1460 // dynamic/interactive flags being active, bring this data over.
1461 //
1462 CopyMem (&TargetTag->TextTwo, &((EFI_IFR_TEXT *) FormData)->TextTwo, sizeof (UINT16));
1463 TargetTag->Flags = ((EFI_IFR_TEXT *) FormData)->Flags;
1464 CopyMem (&TargetTag->Key, &((EFI_IFR_TEXT *) FormData)->Key, sizeof (UINT16));
1465 }
1466 break;
1467
1468 case EFI_IFR_ONE_OF_OPTION_OP:
1469 CopyMem (&TargetTag->Text, &((EFI_IFR_ONE_OF_OPTION *) FormData)->Option, sizeof (UINT16));
1470 CopyMem (&TargetTag->Value, &((EFI_IFR_ONE_OF_OPTION *) FormData)->Value, sizeof (UINT16));
1471 TargetTag->Flags = ((EFI_IFR_ONE_OF_OPTION *) FormData)->Flags;
1472 CopyMem (&TargetTag->Key, &((EFI_IFR_ONE_OF_OPTION *) FormData)->Key, sizeof (UINT16));
1473 TargetTag->VariableNumber = CurrentVariable;
1474 break;
1475
1476 case EFI_IFR_CHECKBOX_OP:
1477 TargetTag->Flags = ((EFI_IFR_CHECKBOX *) FormData)->Flags;
1478 TargetTag->ResetRequired = (BOOLEAN) (TargetTag->Flags & EFI_IFR_FLAG_RESET_REQUIRED);
1479 CopyMem (&TargetTag->Key, &((EFI_IFR_CHECKBOX *) FormData)->Key, sizeof (UINT16));
1480 TargetTag->VariableNumber = CurrentVariable;
1481 break;
1482
1483 case EFI_IFR_NUMERIC_OP:
1484 TargetTag->Flags = ((EFI_IFR_NUMERIC *) FormData)->Flags;
1485 CopyMem (&TargetTag->Key, &((EFI_IFR_NUMERIC *) FormData)->Key, sizeof (UINT16));
1486 TargetTag->VariableNumber = CurrentVariable;
1487 break;
1488
1489 case EFI_IFR_STRING_OP:
1490 //
1491 // Convert EFI_IFR_STRING.MinSize and EFI_IFR_STRING.MaxSize to actual minimum and maximum bytes
1492 // and store to EFI_TAG.Minimum and EFI_TAG.Maximum
1493 //
1494 TempValue = 0;
1495 CopyMem (&TempValue, &((EFI_IFR_STRING *) FormData)->MinSize, sizeof (UINT8));
1496 TempValue = (UINT16) (TempValue * 2);
1497 CopyMem (&TargetTag->Minimum, &TempValue, sizeof (UINT16));
1498
1499 TempValue = 0;
1500 CopyMem (&TempValue, &((EFI_IFR_STRING *) FormData)->MaxSize, sizeof (UINT8));
1501 TempValue = (UINT16) (TempValue * 2);
1502 CopyMem (&TargetTag->Maximum, &TempValue, sizeof (UINT16));
1503 CopyMem (&TargetTag->StorageWidth, &TempValue, sizeof (UINT16));
1504 TargetTag->Flags = (UINT8) (((EFI_IFR_STRING *) FormData)->Flags);
1505 TargetTag->ResetRequired = (BOOLEAN) (TargetTag->Flags & EFI_IFR_FLAG_RESET_REQUIRED);
1506 CopyMem (&TargetTag->Key, &((EFI_IFR_STRING *) FormData)->Key, sizeof (UINT16));
1507 TargetTag->VariableNumber = CurrentVariable;
1508 break;
1509
1510 case EFI_IFR_PASSWORD_OP:
1511 TempValue = 0;
1512 CopyMem (&TempValue, &((EFI_IFR_PASSWORD *) FormData)->MinSize, sizeof (UINT8));
1513 TempValue = (UINT16) (TempValue * 2);
1514 CopyMem (&TargetTag->Minimum, &TempValue, sizeof (UINT16));
1515
1516 TempValue = 0;
1517 CopyMem (&TempValue, &((EFI_IFR_PASSWORD *) FormData)->MaxSize, sizeof (UINT8));
1518 TempValue = (UINT16) (TempValue * 2);
1519 CopyMem (&TargetTag->Maximum, &TempValue, sizeof (UINT16));
1520 CopyMem (&TargetTag->StorageWidth, &TempValue, sizeof (UINT16));
1521 TargetTag->Flags = ((EFI_IFR_PASSWORD *) FormData)->Flags;
1522 TargetTag->ResetRequired = (BOOLEAN) (TargetTag->Flags & EFI_IFR_FLAG_RESET_REQUIRED);
1523 CopyMem (&TargetTag->Key, &((EFI_IFR_PASSWORD *) FormData)->Key, sizeof (UINT16));
1524 CopyMem (&TargetTag->Encoding, &((EFI_IFR_PASSWORD *) FormData)->Encoding, sizeof (UINT16));
1525 TargetTag->VariableNumber = CurrentVariable;
1526 break;
1527
1528 case EFI_IFR_VARSTORE_OP:
1529 //
1530 // It should NEVER be NULL
1531 //
1532 if (VariableDefinitionsHead == NULL) {
1533 break;
1534 }
1535
1536 VariableDefinitions = VariableDefinitionsHead;
1537
1538 //
1539 // Advance VariableDefinitions to the last entry
1540 //
1541 for (; VariableDefinitions != NULL; VariableDefinitions = VariableDefinitions->Next) {
1542 PreviousVariableDefinitions = VariableDefinitions;
1543 //
1544 // If there is a variable with this GUID and ID already, we need to bail out
1545 //
1546 if (!CompareMem (&VariableDefinitions->Guid, &((EFI_IFR_VARSTORE *) FormData)->Guid, sizeof (EFI_GUID)) &&
1547 !CompareMem (&VariableDefinitions->VariableId, &((EFI_IFR_VARSTORE *) FormData)->VarId, sizeof (UINT16))
1548 ) {
1549 return ;
1550 }
1551
1552 if (VariableDefinitions->Next == NULL) {
1553 break;
1554 }
1555 }
1556 //
1557 // If the last entry has a variable in it already, allocate a new entry and use it
1558 //
1559 if (VariableDefinitions->VariableName != NULL) {
1560 VariableDefinitions->Next = AllocateZeroPool (sizeof (EFI_VARIABLE_DEFINITION));
1561 ASSERT (VariableDefinitions->Next != NULL);
1562 PreviousVariableDefinitions = VariableDefinitions;
1563 VariableDefinitions = VariableDefinitions->Next;
1564 VariableDefinitions->Previous = PreviousVariableDefinitions;
1565 }
1566 //
1567 // Copy the Variable data to our linked list
1568 //
1569 CopyMem (&VariableDefinitions->VariableId, &((EFI_IFR_VARSTORE *) FormData)->VarId, sizeof (UINT16));
1570 CopyMem (&VariableDefinitions->VariableSize, &((EFI_IFR_VARSTORE *) FormData)->Size, sizeof (UINT16));
1571 CopyMem (&VariableDefinitions->Guid, &((EFI_IFR_VARSTORE *) FormData)->Guid, sizeof (EFI_GUID));
1572
1573 //
1574 // The ASCII String which is immediately past the EFI_IFR_VARSTORE is inferred by the structure definition
1575 // due to it being variable sized. There are rules preventing it from being > 40 characters long and should
1576 // be enforced by the compiler.
1577 //
1578 AsciiString = (CHAR8 *) (&((EFI_IFR_VARSTORE *) FormData)->Size);
1579 AsciiString = AsciiString + 2;
1580 VariableDefinitions->VariableName = AllocateZeroPool ((AsciiStrLen (AsciiString) + 1) * 2);
1581 ASSERT (VariableDefinitions->VariableName != NULL);
1582 for (Index = 0; AsciiString[Index] != 0; Index++) {
1583 VariableDefinitions->VariableName[Index] = (CHAR16) AsciiString[Index];
1584 }
1585
1586 VariableDefinitions->VariableName[Index] = 0;
1587
1588 //
1589 // Propogate the tag information for this op-code
1590 //
1591 CopyMem (&TargetTag->VariableNumber, &((EFI_IFR_VARSTORE *) FormData)->VarId, sizeof (UINT16));
1592 CopyMem (&TargetTag->GuidValue, &((EFI_IFR_VARSTORE *) FormData)->Guid, sizeof (EFI_GUID));
1593 CopyMem (&TargetTag->StorageWidth, &((EFI_IFR_VARSTORE *) FormData)->Size, sizeof (UINT16));
1594 CopyMem (&TargetTag->Maximum, &((EFI_IFR_VARSTORE *) FormData)->Size, sizeof (UINT16));
1595 break;
1596
1597 case EFI_IFR_VARSTORE_SELECT_OP:
1598 CopyMem (&TargetTag->VariableNumber, &((EFI_IFR_VARSTORE_SELECT *) FormData)->VarId, sizeof (UINT16));
1599 CopyMem (&CurrentVariable, &((EFI_IFR_VARSTORE_SELECT *) FormData)->VarId, sizeof (UINT16));
1600 CurrentVariable2 = CurrentVariable;
1601 break;
1602
1603 case EFI_IFR_VARSTORE_SELECT_PAIR_OP:
1604 CopyMem (&TargetTag->VariableNumber, &((EFI_IFR_VARSTORE_SELECT_PAIR *) FormData)->VarId, sizeof (UINT16));
1605 CopyMem (
1606 &TargetTag->VariableNumber2,
1607 &((EFI_IFR_VARSTORE_SELECT_PAIR *) FormData)->SecondaryVarId,
1608 sizeof (UINT16)
1609 );
1610 CopyMem (&CurrentVariable, &((EFI_IFR_VARSTORE_SELECT_PAIR *) FormData)->VarId, sizeof (UINT16));
1611 CopyMem (&CurrentVariable2, &((EFI_IFR_VARSTORE_SELECT_PAIR *) FormData)->SecondaryVarId, sizeof (UINT16));
1612 break;
1613
1614 case EFI_IFR_REF_OP:
1615 TargetTag->NumberOfLines = 1;
1616 CopyMem (&TargetTag->Id, &((EFI_IFR_REF *) FormData)->FormId, sizeof (UINT16));
1617 CopyMem (&TargetTag->Key, &((EFI_IFR_REF *) FormData)->Key, sizeof (UINT16));
1618 CopyMem (&TargetTag->Text, &((EFI_IFR_REF *) FormData)->Prompt, sizeof (UINT16));
1619 CopyMem (&TargetTag->Help, &((EFI_IFR_REF *) FormData)->Help, sizeof (UINT16));
1620 TargetTag->Flags = ((EFI_IFR_REF *) FormData)->Flags;
1621 TargetTag->VariableNumber = CurrentVariable;
1622 break;
1623
1624 case EFI_IFR_EQ_ID_VAL_OP:
1625 CopyMem (&TargetTag->Value, &((EFI_IFR_EQ_ID_VAL *) FormData)->Value, sizeof (UINT16));
1626 CopyMem (&TargetTag->Id, &((EFI_IFR_EQ_ID_VAL *) FormData)->QuestionId, sizeof (UINT16));
1627 TargetTag->StorageWidth = ((EFI_IFR_EQ_ID_VAL *) FormData)->Width;
1628 TargetTag->VariableNumber = CurrentVariable;
1629 break;
1630
1631 case EFI_IFR_EQ_VAR_VAL_OP:
1632 CopyMem (&TargetTag->Value, &((EFI_IFR_EQ_VAR_VAL *) FormData)->Value, sizeof (UINT16));
1633 CopyMem (&TargetTag->Id, &((EFI_IFR_EQ_VAR_VAL *) FormData)->VariableId, sizeof (UINT16));
1634 TargetTag->VariableNumber = CurrentVariable;
1635 break;
1636
1637 case EFI_IFR_EQ_ID_ID_OP:
1638 CopyMem (&TargetTag->Id, &((EFI_IFR_EQ_ID_ID *) FormData)->QuestionId1, sizeof (UINT16));
1639 CopyMem (&TargetTag->Id2, &((EFI_IFR_EQ_ID_ID *) FormData)->QuestionId2, sizeof (UINT16));
1640 TargetTag->StorageWidth = ((EFI_IFR_EQ_ID_ID *) FormData)->Width;
1641 TargetTag->VariableNumber = CurrentVariable;
1642 TargetTag->VariableNumber = CurrentVariable2;
1643 break;
1644
1645 case EFI_IFR_EQ_ID_LIST_OP:
1646 CopyMem (&TargetTag->Id, &((EFI_IFR_EQ_ID_LIST *) FormData)->QuestionId, sizeof (UINT16));
1647 CopyMem (&TargetTag->Id2, &((EFI_IFR_EQ_ID_LIST *) FormData)->ListLength, sizeof (UINT16));
1648 TargetTag->StorageWidth = ((EFI_IFR_EQ_ID_LIST *) FormData)->Width;
1649
1650 TargetTag->IntList = AllocateZeroPool (TargetTag->Id2 * sizeof (UINT16));
1651 ASSERT (TargetTag->IntList);
1652
1653 for (TempValue = 0; TempValue < TargetTag->Id2; TempValue++) {
1654 CopyMem (
1655 &TargetTag->IntList[TempValue],
1656 &((EFI_IFR_EQ_ID_LIST *) FormData)->ValueList[TempValue],
1657 sizeof (UINT16)
1658 );
1659 }
1660
1661 TargetTag->VariableNumber = CurrentVariable;
1662 break;
1663
1664 case EFI_IFR_FORM_SET_OP:
1665 CopyMem (&VariableSize, &((EFI_IFR_FORM_SET *) FormData)->NvDataSize, sizeof (UINT16));
1666 CopyMem (&Guid, &((EFI_IFR_FORM_SET *) FormData)->Guid, sizeof (EFI_GUID));
1667 //
1668 // If there is a size specified in the formste, we will establish a "default" variable
1669 //
1670 if (VariableDefinitionsHead != NULL) {
1671 VariableName = AllocateZeroPool (12);
1672 ASSERT (VariableName != NULL);
1673 CopyMem (VariableName, L"Setup", 12);
1674 VariableDefinitionsHead->VariableName = VariableName;
1675 VariableDefinitionsHead->VariableSize = VariableSize;
1676 CopyMem (&VariableDefinitionsHead->Guid, &Guid, sizeof (EFI_GUID));
1677 }
1678 break;
1679
1680 case EFI_IFR_END_FORM_SET_OP:
1681 CurrentVariable = 0;
1682 CurrentVariable2 = 0;
1683 break;
1684 }
1685
1686 return ;
1687 }
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