MdeModulePkg/Universal/SetupBrowserDxe/Setup.h

   1 /** @file
   2 Private MACRO, structure and function definitions for Setup Browser module.
   3
   4 Copyright (c) 2007 - 2012, Intel Corporation. All rights reserved.<BR>
   5 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
  16 #ifndef _SETUP_H_
  17 #define _SETUP_H_
  18
  19
  20 #include <PiDxe.h>
  21
  22 #include <Protocol/SimpleTextOut.h>
  23 #include <Protocol/SimpleTextIn.h>
  24 #include <Protocol/FormBrowser2.h>
  25 #include <Protocol/FormBrowserEx.h>
  26 #include <Protocol/DevicePath.h>
  27 #include <Protocol/UnicodeCollation.h>
  28 #include <Protocol/HiiConfigAccess.h>
  29 #include <Protocol/HiiConfigRouting.h>
  30 #include <Protocol/HiiDatabase.h>
  31 #include <Protocol/HiiString.h>
  32 #include <Protocol/UserManager.h>
  33
  34 #include <Guid/MdeModuleHii.h>
  35 #include <Guid/HiiPlatformSetupFormset.h>
  36 #include <Guid/HiiFormMapMethodGuid.h>
  37
  38 #include <Library/PrintLib.h>
  39 #include <Library/DebugLib.h>
  40 #include <Library/BaseMemoryLib.h>
  41 #include <Library/UefiRuntimeServicesTableLib.h>
  42 #include <Library/UefiDriverEntryPoint.h>
  43 #include <Library/UefiBootServicesTableLib.h>
  44 #include <Library/BaseLib.h>
  45 #include <Library/MemoryAllocationLib.h>
  46 #include <Library/HiiLib.h>
  47 #include <Library/PcdLib.h>
  48 #include <Library/DevicePathLib.h>
  49
  50 #include "Colors.h"
  51
  52 //
  53 // This is the generated header file which includes whatever needs to be exported (strings + IFR)
  54 //
  55
  56 extern UINT8  SetupBrowserStrings[];
  57
  58 //
  59 // Screen definitions
  60 //
  61 #define BANNER_HEIGHT                 6
  62 #define BANNER_COLUMNS                3
  63 #define BANNER_LEFT_COLUMN_INDENT     1
  64
  65 #define FRONT_PAGE_HEADER_HEIGHT      6
  66 #define NONE_FRONT_PAGE_HEADER_HEIGHT 3
  67 #define LEFT_SKIPPED_COLUMNS          3
  68 #define FOOTER_HEIGHT                 4
  69 #define STATUS_BAR_HEIGHT             1
  70 #define SCROLL_ARROW_HEIGHT           1
  71 #define POPUP_PAD_SPACE_COUNT         5
  72 #define POPUP_FRAME_WIDTH             2
  73
  74 //
  75 // Definition for function key setting
  76 //
  77 #define NONE_FUNCTION_KEY_SETTING     0
  78 #define ENABLE_FUNCTION_KEY_SETTING   1
  79
  80 typedef struct {
  81   EFI_GUID  FormSetGuid;
  82   UINTN     KeySetting;
  83 } FUNCTIION_KEY_SETTING;
  84
  85 //
  86 // Character definitions
  87 //
  88 #define CHAR_SPACE              0x0020
  89 #define UPPER_LOWER_CASE_OFFSET 0x20
  90
  91 //
  92 // Time definitions
  93 //
  94 #define ONE_SECOND  10000000
  95
  96 //
  97 // Display definitions
  98 //
  99 #define LEFT_HYPER_DELIMITER      L'<'
 100 #define RIGHT_HYPER_DELIMITER     L'>'
 101
 102 #define LEFT_ONEOF_DELIMITER      L'<'
 103 #define RIGHT_ONEOF_DELIMITER     L'>'
 104
 105 #define LEFT_NUMERIC_DELIMITER    L'['
 106 #define RIGHT_NUMERIC_DELIMITER   L']'
 107
 108 #define LEFT_CHECKBOX_DELIMITER   L'['
 109 #define RIGHT_CHECKBOX_DELIMITER  L']'
 110
 111 #define CHECK_ON                  L'X'
 112 #define CHECK_OFF                 L' '
 113
 114 #define TIME_SEPARATOR            L':'
 115 #define DATE_SEPARATOR            L'/'
 116
 117 #define YES_ANSWER                L'Y'
 118 #define NO_ANSWER                 L'N'
 119
 120 //
 121 // This is the Input Error Message
 122 //
 123 #define INPUT_ERROR 1
 124
 125 //
 126 // This is the NV RAM update required Message
 127 //
 128 #define NV_UPDATE_REQUIRED  2
 129
 130 //
 131 // Refresh the Status Bar with flags
 132 //
 133 #define REFRESH_STATUS_BAR  0xff
 134
 135 //
 136 // Incremental string lenght of ConfigRequest
 137 //
 138 #define CONFIG_REQUEST_STRING_INCREMENTAL  1024
 139
 140 //
 141 // HII value compare result
 142 //
 143 #define HII_VALUE_UNDEFINED     0
 144 #define HII_VALUE_EQUAL         1
 145 #define HII_VALUE_LESS_THAN     2
 146 #define HII_VALUE_GREATER_THAN  3
 147
 148 //
 149 // Incremental size of stack for expression
 150 //
 151 #define EXPRESSION_STACK_SIZE_INCREMENT    0x100
 152
 153 #define EFI_IFR_SPECIFICATION_VERSION  (UINT16) (((EFI_SYSTEM_TABLE_REVISION >> 16) << 8) | (((EFI_SYSTEM_TABLE_REVISION & 0xFFFF) / 10) << 4) | ((EFI_SYSTEM_TABLE_REVISION & 0xFFFF) % 10))
 154
 155
 156 #define SETUP_DRIVER_SIGNATURE SIGNATURE_32 ('F', 'B', 'D', 'V')
 157 typedef struct {
 158   UINT32                             Signature;
 159
 160   EFI_HANDLE                         Handle;
 161
 162   //
 163   // Produced protocol
 164   //
 165   EFI_FORM_BROWSER2_PROTOCOL          FormBrowser2;
 166
 167   EFI_FORM_BROWSER_EXTENSION_PROTOCOL FormBrowserEx;
 168
 169 } SETUP_DRIVER_PRIVATE_DATA;
 170
 171 typedef struct {
 172   EFI_STRING_ID  Banner[BANNER_HEIGHT][BANNER_COLUMNS];
 173 } BANNER_DATA;
 174
 175 //
 176 // IFR relative definition
 177 //
 178 #define EFI_HII_EXPRESSION_INCONSISTENT_IF   0
 179 #define EFI_HII_EXPRESSION_NO_SUBMIT_IF      1
 180 #define EFI_HII_EXPRESSION_GRAY_OUT_IF       2
 181 #define EFI_HII_EXPRESSION_SUPPRESS_IF       3
 182 #define EFI_HII_EXPRESSION_DISABLE_IF        4
 183 #define EFI_HII_EXPRESSION_VALUE             5
 184 #define EFI_HII_EXPRESSION_RULE              6
 185 #define EFI_HII_EXPRESSION_READ              7
 186 #define EFI_HII_EXPRESSION_WRITE             8
 187
 188 #define EFI_HII_VARSTORE_BUFFER              0
 189 #define EFI_HII_VARSTORE_NAME_VALUE          1
 190 #define EFI_HII_VARSTORE_EFI_VARIABLE        2
 191 #define EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER 3
 192
 193 #define FORM_INCONSISTENT_VALIDATION         0
 194 #define FORM_NO_SUBMIT_VALIDATION            1
 195
 196 #define FORMSET_CLASS_PLATFORM_SETUP         0x0001
 197 #define FORMSET_CLASS_FRONT_PAGE             0x0002
 198
 199 typedef struct {
 200   UINT8               Type;
 201   UINT8               *Buffer;
 202   UINT16              BufferLen;
 203   EFI_IFR_TYPE_VALUE  Value;
 204 } EFI_HII_VALUE;
 205
 206 #define NAME_VALUE_NODE_SIGNATURE  SIGNATURE_32 ('N', 'V', 'S', 'T')
 207
 208 typedef struct {
 209   UINTN            Signature;
 210   LIST_ENTRY       Link;
 211   CHAR16           *Name;
 212   CHAR16           *Value;
 213   CHAR16           *EditValue;
 214 } NAME_VALUE_NODE;
 215
 216 #define NAME_VALUE_NODE_FROM_LINK(a)  CR (a, NAME_VALUE_NODE, Link, NAME_VALUE_NODE_SIGNATURE)
 217
 218 #define FORMSET_STORAGE_SIGNATURE  SIGNATURE_32 ('F', 'S', 'T', 'G')
 219
 220 typedef struct {
 221   UINTN            Signature;
 222   LIST_ENTRY       Link;
 223
 224   UINT8            Type;           // Storage type
 225
 226   UINT16           VarStoreId;
 227   EFI_GUID         Guid;
 228
 229   CHAR16           *Name;          // For EFI_IFR_VARSTORE
 230   UINT16           Size;
 231   UINT8            *Buffer;
 232   UINT8            *EditBuffer;    // Edit copy for Buffer Storage
 233
 234   LIST_ENTRY       NameValueListHead; // List of NAME_VALUE_NODE
 235
 236   UINT32           Attributes;     // For EFI_IFR_VARSTORE_EFI: EFI Variable attribute
 237
 238   CHAR16           *ConfigHdr;     // <ConfigHdr>
 239   CHAR16           *ConfigRequest; // <ConfigRequest> = <ConfigHdr> + <RequestElement>
 240   UINTN            ElementCount;   // Number of <RequestElement> in the <ConfigRequest>
 241   UINTN            SpareStrLen;    // Spare length of ConfigRequest string buffer
 242 } FORMSET_STORAGE;
 243
 244 #define FORMSET_STORAGE_FROM_LINK(a)  CR (a, FORMSET_STORAGE, Link, FORMSET_STORAGE_SIGNATURE)
 245
 246 typedef union {
 247   EFI_STRING_ID         VarName;
 248   UINT16                VarOffset;
 249 } VAR_STORE_INFO;
 250
 251 #define EXPRESSION_OPCODE_SIGNATURE  SIGNATURE_32 ('E', 'X', 'O', 'P')
 252
 253 typedef struct {
 254   UINTN             Signature;
 255   LIST_ENTRY        Link;
 256
 257   UINT8             Operand;
 258
 259   UINT8             Format;      // For EFI_IFR_TO_STRING, EFI_IFR_FIND
 260   UINT8             Flags;       // For EFI_IFR_SPAN
 261   UINT8             RuleId;      // For EFI_IFR_RULE_REF
 262
 263   EFI_HII_VALUE     Value;       // For EFI_IFR_EQ_ID_VAL, EFI_IFR_UINT64, EFI_IFR_UINT32, EFI_IFR_UINT16, EFI_IFR_UINT8, EFI_IFR_STRING_REF1
 264
 265   EFI_QUESTION_ID   QuestionId;  // For EFI_IFR_EQ_ID_ID, EFI_IFR_EQ_ID_VAL_LIST, EFI_IFR_QUESTION_REF1
 266   EFI_QUESTION_ID   QuestionId2;
 267
 268   UINT16            ListLength;  // For EFI_IFR_EQ_ID_VAL_LIST
 269   UINT16            *ValueList;
 270
 271   EFI_STRING_ID     DevicePath;  // For EFI_IFR_QUESTION_REF3_2, EFI_IFR_QUESTION_REF3_3
 272   EFI_GUID          Guid;
 273
 274   FORMSET_STORAGE   *VarStorage; // For EFI_IFR_SET, EFI_IFR_GET
 275   VAR_STORE_INFO    VarStoreInfo;// For EFI_IFR_SET, EFI_IFR_GET
 276   UINT8             ValueType;   // For EFI_IFR_SET, EFI_IFR_GET
 277   UINT8             ValueWidth;  // For EFI_IFR_SET, EFI_IFR_GET
 278   CHAR16            *ValueName;  // For EFI_IFR_SET, EFI_IFR_GET
 279   LIST_ENTRY        MapExpressionList;   // nested expressions inside of Map opcode.
 280 } EXPRESSION_OPCODE;
 281
 282 #define EXPRESSION_OPCODE_FROM_LINK(a)  CR (a, EXPRESSION_OPCODE, Link, EXPRESSION_OPCODE_SIGNATURE)
 283
 284 #define FORM_EXPRESSION_SIGNATURE  SIGNATURE_32 ('F', 'E', 'X', 'P')
 285
 286 typedef struct {
 287   UINTN             Signature;
 288   LIST_ENTRY        Link;
 289
 290   UINT8             Type;            // Type for this expression
 291
 292   UINT8             RuleId;          // For EFI_IFR_RULE only
 293   EFI_STRING_ID     Error;           // For EFI_IFR_NO_SUBMIT_IF, EFI_IFR_INCONSISTENT_IF only
 294
 295   EFI_HII_VALUE     Result;          // Expression evaluation result
 296
 297   LIST_ENTRY        OpCodeListHead;  // OpCodes consist of this expression (EXPRESSION_OPCODE)
 298 } FORM_EXPRESSION;
 299
 300 #define FORM_EXPRESSION_FROM_LINK(a)  CR (a, FORM_EXPRESSION, Link, FORM_EXPRESSION_SIGNATURE)
 301
 302 #define FORM_EXPRESSION_LIST_SIGNATURE  SIGNATURE_32 ('F', 'E', 'X', 'R')
 303
 304 typedef struct {
 305     UINTN               Signature;
 306     UINTN               Count;
 307     FORM_EXPRESSION    *Expression[1];   // Array[Count] of expressions
 308 } FORM_EXPRESSION_LIST;
 309
 310 #define QUESTION_DEFAULT_SIGNATURE  SIGNATURE_32 ('Q', 'D', 'F', 'T')
 311
 312 typedef struct {
 313   UINTN               Signature;
 314   LIST_ENTRY          Link;
 315
 316   UINT16              DefaultId;
 317   EFI_HII_VALUE       Value;              // Default value
 318
 319   FORM_EXPRESSION     *ValueExpression;   // Not-NULL indicates default value is provided by EFI_IFR_VALUE
 320 } QUESTION_DEFAULT;
 321
 322 #define QUESTION_DEFAULT_FROM_LINK(a)  CR (a, QUESTION_DEFAULT, Link, QUESTION_DEFAULT_SIGNATURE)
 323
 324 #define QUESTION_OPTION_SIGNATURE  SIGNATURE_32 ('Q', 'O', 'P', 'T')
 325
 326 typedef struct {
 327   UINTN                Signature;
 328   LIST_ENTRY           Link;
 329
 330   EFI_STRING_ID        Text;
 331   UINT8                Flags;
 332   EFI_HII_VALUE        Value;
 333   EFI_IMAGE_ID         ImageId;
 334
 335   FORM_EXPRESSION_LIST *SuppressExpression; // Non-NULL indicates nested inside of SuppressIf
 336 } QUESTION_OPTION;
 337
 338 #define QUESTION_OPTION_FROM_LINK(a)  CR (a, QUESTION_OPTION, Link, QUESTION_OPTION_SIGNATURE)
 339
 340 typedef enum {
 341   ExpressFalse = 0,
 342   ExpressGrayOut,
 343   ExpressSuppress,
 344   ExpressDisable
 345 } EXPRESS_RESULT;
 346
 347 typedef enum {
 348   ExpressNone = 0,
 349   ExpressForm,
 350   ExpressStatement,
 351   ExpressOption
 352 } EXPRESS_LEVEL;
 353
 354 #define FORM_BROWSER_STATEMENT_SIGNATURE  SIGNATURE_32 ('F', 'S', 'T', 'A')
 355
 356 typedef struct {
 357   UINTN                 Signature;
 358   LIST_ENTRY            Link;
 359
 360   UINT8                 Operand;          // The operand (first byte) of this Statement or Question
 361
 362   //
 363   // Statement Header
 364   //
 365   EFI_STRING_ID         Prompt;
 366   EFI_STRING_ID         Help;
 367   EFI_STRING_ID         TextTwo;          // For EFI_IFR_TEXT
 368
 369   //
 370   // Question Header
 371   //
 372   EFI_QUESTION_ID       QuestionId;       // The value of zero is reserved
 373   EFI_VARSTORE_ID       VarStoreId;       // A value of zero indicates no variable storage
 374   FORMSET_STORAGE       *Storage;
 375   VAR_STORE_INFO        VarStoreInfo;
 376   UINT16                StorageWidth;
 377   UINT8                 QuestionFlags;
 378   CHAR16                *VariableName;    // Name/Value or EFI Variable name
 379   CHAR16                *BlockName;       // Buffer storage block name: "OFFSET=...WIDTH=..."
 380
 381   EFI_HII_VALUE         HiiValue;         // Edit copy for checkbox, numberic, oneof
 382   UINT8                 *BufferValue;     // Edit copy for string, password, orderedlist
 383   UINT8                 ValueType;        // Data type for orderedlist value array
 384
 385   //
 386   // OpCode specific members
 387   //
 388   UINT8                 Flags;            // for EFI_IFR_CHECKBOX, EFI_IFR_DATE, EFI_IFR_NUMERIC, EFI_IFR_ONE_OF,
 389                                           // EFI_IFR_ORDERED_LIST, EFI_IFR_STRING,EFI_IFR_SUBTITLE,EFI_IFR_TIME, EFI_IFR_BANNER
 390   UINT8                 MaxContainers;    // for EFI_IFR_ORDERED_LIST
 391
 392   UINT16                BannerLineNumber; // for EFI_IFR_BANNER, 1-based line number
 393   EFI_STRING_ID         QuestionConfig;   // for EFI_IFR_ACTION, if 0 then no configuration string will be processed
 394
 395   UINT64                Minimum;          // for EFI_IFR_ONE_OF/EFI_IFR_NUMERIC, it's Min/Max value
 396   UINT64                Maximum;          // for EFI_IFR_STRING/EFI_IFR_PASSWORD, it's Min/Max length
 397   UINT64                Step;
 398
 399   EFI_DEFAULT_ID        DefaultId;        // for EFI_IFR_RESET_BUTTON
 400   EFI_GUID              RefreshGuid;      // for EFI_IFR_REFRESH_ID
 401   BOOLEAN               Locked;           // Whether this statement is locked.
 402   //
 403   // Get from IFR parsing
 404   //
 405   FORM_EXPRESSION       *ValueExpression;    // nested EFI_IFR_VALUE, provide Question value and indicate Question is ReadOnly
 406   LIST_ENTRY            DefaultListHead;     // nested EFI_IFR_DEFAULT list (QUESTION_DEFAULT), provide default values
 407   LIST_ENTRY            OptionListHead;      // nested EFI_IFR_ONE_OF_OPTION list (QUESTION_OPTION)
 408
 409   EFI_IMAGE_ID          ImageId;             // nested EFI_IFR_IMAGE
 410   UINT8                 RefreshInterval;     // nested EFI_IFR_REFRESH, refresh interval(in seconds) for Question value, 0 means no refresh
 411   BOOLEAN               InSubtitle;          // nesting inside of EFI_IFR_SUBTITLE
 412
 413   LIST_ENTRY            InconsistentListHead;// nested inconsistent expression list (FORM_EXPRESSION)
 414   LIST_ENTRY            NoSubmitListHead;    // nested nosubmit expression list (FORM_EXPRESSION)
 415   FORM_EXPRESSION_LIST  *Expression;         // nesting inside of GrayOutIf/DisableIf/SuppressIf
 416
 417   FORM_EXPRESSION       *ReadExpression;     // nested EFI_IFR_READ, provide this question value by read expression.
 418   FORM_EXPRESSION       *WriteExpression;    // nested EFI_IFR_WRITE, evaluate write expression after this question value is set.
 419 } FORM_BROWSER_STATEMENT;
 420
 421 #define FORM_BROWSER_STATEMENT_FROM_LINK(a)  CR (a, FORM_BROWSER_STATEMENT, Link, FORM_BROWSER_STATEMENT_SIGNATURE)
 422
 423 #define FORM_BROWSER_CONFIG_REQUEST_SIGNATURE  SIGNATURE_32 ('F', 'C', 'R', 'S')
 424 typedef struct {
 425   UINTN                 Signature;
 426   LIST_ENTRY            Link;
 427
 428   CHAR16                *ConfigRequest; // <ConfigRequest> = <ConfigHdr> + <RequestElement>
 429   UINTN                 ElementCount;   // Number of <RequestElement> in the <ConfigRequest>
 430   UINTN                 SpareStrLen;
 431
 432   FORMSET_STORAGE       *Storage;
 433 } FORM_BROWSER_CONFIG_REQUEST;
 434 #define FORM_BROWSER_CONFIG_REQUEST_FROM_LINK(a)  CR (a, FORM_BROWSER_CONFIG_REQUEST, Link, FORM_BROWSER_CONFIG_REQUEST_SIGNATURE)
 435
 436 #define FORM_BROWSER_FORM_SIGNATURE  SIGNATURE_32 ('F', 'F', 'R', 'M')
 437 #define STANDARD_MAP_FORM_TYPE 0x01
 438
 439 typedef struct {
 440   UINTN                Signature;
 441   LIST_ENTRY           Link;
 442
 443   UINT16               FormId;               // FormId of normal form or formmap form.
 444   EFI_STRING_ID        FormTitle;            // FormTile of normal form, or FormMapMethod title of formmap form.
 445   UINT16               FormType;             // Specific form type for the different form.
 446
 447   EFI_IMAGE_ID         ImageId;
 448
 449   BOOLEAN              ModalForm;            // Whether this is a modal form.
 450   BOOLEAN              Locked;               // Whether this form is locked.
 451
 452   BOOLEAN              NvUpdateRequired;     // Whether this form has NV update request.
 453
 454   LIST_ENTRY           ExpressionListHead;   // List of Expressions (FORM_EXPRESSION)
 455   LIST_ENTRY           StatementListHead;    // List of Statements and Questions (FORM_BROWSER_STATEMENT)
 456   LIST_ENTRY           ConfigRequestHead;    // List of configreques for all storage.
 457   FORM_EXPRESSION_LIST *SuppressExpression;  // nesting inside of SuppressIf
 458 } FORM_BROWSER_FORM;
 459
 460 #define FORM_BROWSER_FORM_FROM_LINK(a)  CR (a, FORM_BROWSER_FORM, Link, FORM_BROWSER_FORM_SIGNATURE)
 461
 462 #define FORMSET_DEFAULTSTORE_SIGNATURE  SIGNATURE_32 ('F', 'D', 'F', 'S')
 463
 464 typedef struct {
 465   UINTN            Signature;
 466   LIST_ENTRY       Link;
 467
 468   UINT16           DefaultId;
 469   EFI_STRING_ID    DefaultName;
 470 } FORMSET_DEFAULTSTORE;
 471
 472 #define FORMSET_DEFAULTSTORE_FROM_LINK(a)  CR (a, FORMSET_DEFAULTSTORE, Link, FORMSET_DEFAULTSTORE_SIGNATURE)
 473
 474 #define FORM_BROWSER_FORMSET_SIGNATURE  SIGNATURE_32 ('F', 'B', 'F', 'S')
 475
 476 typedef struct {
 477   UINTN                           Signature;
 478   LIST_ENTRY                      Link;
 479   EFI_HII_HANDLE                  HiiHandle;      // unique id for formset.
 480   EFI_HANDLE                      DriverHandle;
 481   EFI_HII_CONFIG_ACCESS_PROTOCOL  *ConfigAccess;
 482   EFI_DEVICE_PATH_PROTOCOL        *DevicePath;
 483
 484   UINTN                           IfrBinaryLength;
 485   UINT8                           *IfrBinaryData;
 486
 487   EFI_GUID                        Guid;
 488   EFI_STRING_ID                   FormSetTitle;
 489   EFI_STRING_ID                   Help;
 490   UINT8                           NumberOfClassGuid;
 491   EFI_GUID                        ClassGuid[3];         // Up to three ClassGuid
 492   UINT16                          Class;                // Tiano extended Class code
 493   UINT16                          SubClass;             // Tiano extended Subclass code
 494   EFI_IMAGE_ID                    ImageId;
 495
 496   FORM_BROWSER_STATEMENT          *StatementBuffer;     // Buffer for all Statements and Questions
 497   EXPRESSION_OPCODE               *ExpressionBuffer;    // Buffer for all Expression OpCode
 498
 499   LIST_ENTRY                      StorageListHead;      // Storage list (FORMSET_STORAGE)
 500   LIST_ENTRY                      DefaultStoreListHead; // DefaultStore list (FORMSET_DEFAULTSTORE)
 501   LIST_ENTRY                      FormListHead;         // Form list (FORM_BROWSER_FORM)
 502   LIST_ENTRY                      ExpressionListHead;   // List of Expressions (FORM_EXPRESSION)
 503 } FORM_BROWSER_FORMSET;
 504
 505 #define FORM_BROWSER_FORMSET_FROM_LINK(a)  CR (a, FORM_BROWSER_FORMSET, Link, FORM_BROWSER_FORMSET_SIGNATURE)
 506
 507 #define BROWSER_CONTEXT_SIGNATURE  SIGNATURE_32 ('B', 'C', 'T', 'X')
 508
 509 typedef struct {
 510   UINTN                 Signature;
 511   LIST_ENTRY            Link;
 512
 513   //
 514   // Globals defined in Setup.c
 515   //
 516   BANNER_DATA           *BannerData;
 517   UINTN                 ClassOfVfr;
 518   UINTN                 FunctionKeySetting;
 519   BOOLEAN               ResetRequired;
 520   UINT16                Direction;
 521   EFI_SCREEN_DESCRIPTOR ScreenDimensions;
 522   CHAR16                *EnterString;
 523   CHAR16                *EnterCommitString;
 524   CHAR16                *EnterEscapeString;
 525   CHAR16                *EscapeString;
 526   CHAR16                *MoveHighlight;
 527   CHAR16                *MakeSelection;
 528   CHAR16                *DecNumericInput;
 529   CHAR16                *HexNumericInput;
 530   CHAR16                *ToggleCheckBox;
 531   CHAR16                *PromptForData;
 532   CHAR16                *PromptForPassword;
 533   CHAR16                *PromptForNewPassword;
 534   CHAR16                *ConfirmPassword;
 535   CHAR16                *ConfirmError;
 536   CHAR16                *PassowordInvalid;
 537   CHAR16                *PressEnter;
 538   CHAR16                *EmptyString;
 539   CHAR16                *AreYouSure;
 540   CHAR16                *YesResponse;
 541   CHAR16                *NoResponse;
 542   CHAR16                *MiniString;
 543   CHAR16                *PlusString;
 544   CHAR16                *MinusString;
 545   CHAR16                *AdjustNumber;
 546   CHAR16                *SaveChanges;
 547   CHAR16                *OptionMismatch;
 548   CHAR16                *FormSuppress;
 549   CHAR16                PromptBlockWidth;
 550   CHAR16                OptionBlockWidth;
 551   CHAR16                HelpBlockWidth;
 552   FORM_BROWSER_FORMSET  *OldFormSet;
 553
 554   //
 555   // Globals defined in Ui.c
 556   //
 557   LIST_ENTRY           MenuOption;
 558   VOID                 *MenuRefreshHead;
 559 } BROWSER_CONTEXT;
 560
 561 #define BROWSER_CONTEXT_FROM_LINK(a)  CR (a, BROWSER_CONTEXT, Link, BROWSER_CONTEXT_SIGNATURE)
 562
 563 #define BROWSER_HOT_KEY_SIGNATURE  SIGNATURE_32 ('B', 'H', 'K', 'S')
 564
 565 typedef struct {
 566   UINTN                 Signature;
 567   LIST_ENTRY            Link;
 568
 569   EFI_INPUT_KEY         *KeyData;
 570   IN UINT32             Action;
 571   IN UINT16             DefaultId;
 572   IN EFI_STRING         HelpString;
 573 } BROWSER_HOT_KEY;
 574
 575 #define BROWSER_HOT_KEY_FROM_LINK(a)  CR (a, BROWSER_HOT_KEY, Link, BROWSER_HOT_KEY_SIGNATURE)
 576
 577 //
 578 // Scope for get defaut value. It may be GetDefaultForNoStorage, GetDefaultForStorage or GetDefaultForAll.
 579 //
 580 typedef enum {
 581   GetDefaultForNoStorage,       // Get default value for question which not has storage.
 582   GetDefaultForStorage,         // Get default value for question which has storage.
 583   GetDefaultForAll,             // Get default value for all questions.
 584   GetDefaultForMax              // Invalid value.
 585 } BROWSER_GET_DEFAULT_VALUE;
 586
 587 //
 588 // Get/set question value from/to.
 589 //
 590 typedef enum {
 591   GetSetValueWithEditBuffer,       // Get/Set question value from/to editbuffer in the storage.
 592   GetSetValueWithBuffer,           // Get/Set question value from/to buffer in the storage.
 593   GetSetValueWithHiiDriver,        // Get/Set question value from/to hii driver.
 594   GetSetValueWithMax               // Invalid value.
 595 } GET_SET_QUESTION_VALUE_WITH;
 596
 597 extern EFI_HII_DATABASE_PROTOCOL         *mHiiDatabase;
 598 extern EFI_HII_STRING_PROTOCOL           *mHiiString;
 599 extern EFI_HII_CONFIG_ROUTING_PROTOCOL   *mHiiConfigRouting;
 600
 601 extern BANNER_DATA           *gBannerData;
 602 extern EFI_HII_HANDLE        gFrontPageHandle;
 603 extern UINTN                 gClassOfVfr;
 604 extern UINTN                 gFunctionKeySetting;
 605 extern BOOLEAN               gResetRequired;
 606 extern EFI_HII_HANDLE        gHiiHandle;
 607 extern UINT16                gDirection;
 608 extern EFI_SCREEN_DESCRIPTOR gScreenDimensions;
 609
 610 extern FORM_BROWSER_FORMSET  *gOldFormSet;
 611 extern LIST_ENTRY            gBrowserFormSetList;
 612 extern LIST_ENTRY            gBrowserHotKeyList;
 613 extern BROWSER_SETTING_SCOPE gBrowserSettingScope;
 614 extern EXIT_HANDLER          ExitHandlerFunction;
 615 extern UINTN                 gFooterHeight;
 616
 617 //
 618 // Browser Global Strings
 619 //
 620 extern CHAR16            *gDiscardFailed;
 621 extern CHAR16            *gDefaultFailed;
 622 extern CHAR16            *gEnterString;
 623 extern CHAR16            *gEnterCommitString;
 624 extern CHAR16            *gEnterEscapeString;
 625 extern CHAR16            *gEscapeString;
 626 extern CHAR16            *gSaveFailed;
 627 extern CHAR16            *gMoveHighlight;
 628 extern CHAR16            *gMakeSelection;
 629 extern CHAR16            *gDecNumericInput;
 630 extern CHAR16            *gHexNumericInput;
 631 extern CHAR16            *gToggleCheckBox;
 632 extern CHAR16            *gPromptForData;
 633 extern CHAR16            *gPromptForPassword;
 634 extern CHAR16            *gPromptForNewPassword;
 635 extern CHAR16            *gConfirmPassword;
 636 extern CHAR16            *gConfirmError;
 637 extern CHAR16            *gPassowordInvalid;
 638 extern CHAR16            *gPressEnter;
 639 extern CHAR16            *gEmptyString;
 640 extern CHAR16            *gAreYouSure;
 641 extern CHAR16            *gYesResponse;
 642 extern CHAR16            *gNoResponse;
 643 extern CHAR16            *gMiniString;
 644 extern CHAR16            *gPlusString;
 645 extern CHAR16            *gMinusString;
 646 extern CHAR16            *gAdjustNumber;
 647 extern CHAR16            *gSaveChanges;
 648 extern CHAR16            *gOptionMismatch;
 649 extern CHAR16            *gFormSuppress;
 650
 651 extern CHAR16            gPromptBlockWidth;
 652 extern CHAR16            gOptionBlockWidth;
 653 extern CHAR16            gHelpBlockWidth;
 654
 655 extern EFI_GUID          gZeroGuid;
 656 extern EFI_GUID          gTianoHiiIfrGuid;
 657
 658 #include "Ui.h"
 659 //
 660 // Global Procedure Defines
 661 //
 662
 663 /**
 664   Initialize the HII String Token to the correct values.
 665
 666 **/
 667 VOID
 668 InitializeBrowserStrings (
 669   VOID
 670   );
 671
 672 /**
 673   Prints a unicode string to the default console,
 674   using L"%s" format.
 675
 676   @param  String     String pointer.
 677
 678   @return Length of string printed to the console
 679
 680 **/
 681 UINTN
 682 PrintString (
 683   IN CHAR16       *String
 684   );
 685
 686 /**
 687   Prints a chracter to the default console,
 688   using L"%c" format.
 689
 690   @param  Character  Character to print.
 691
 692   @return Length of string printed to the console.
 693
 694 **/
 695 UINTN
 696 PrintChar (
 697   CHAR16       Character
 698   );
 699
 700 /**
 701   Prints a formatted unicode string to the default console, at
 702   the supplied cursor position.
 703
 704   @param  Column     The cursor position to print the string at.
 705   @param  Row        The cursor position to print the string at
 706   @param  Fmt        Format string
 707   @param  ...        Variable argument list for formating string.
 708
 709   @return Length of string printed to the console
 710
 711 **/
 712 UINTN
 713 EFIAPI
 714 PrintAt (
 715   IN UINTN     Column,
 716   IN UINTN     Row,
 717   IN CHAR16    *Fmt,
 718   ...
 719   );
 720
 721 /**
 722   Prints a unicode string to the default console, at
 723   the supplied cursor position, using L"%s" format.
 724
 725   @param  Column     The cursor position to print the string at.
 726   @param  Row        The cursor position to print the string at
 727   @param  String     String pointer.
 728
 729   @return Length of string printed to the console
 730
 731 **/
 732 UINTN
 733 PrintStringAt (
 734   IN UINTN     Column,
 735   IN UINTN     Row,
 736   IN CHAR16    *String
 737   );
 738
 739 /**
 740   Prints a chracter to the default console, at
 741   the supplied cursor position, using L"%c" format.
 742
 743   @param  Column     The cursor position to print the string at.
 744   @param  Row        The cursor position to print the string at.
 745   @param  Character  Character to print.
 746
 747   @return Length of string printed to the console.
 748
 749 **/
 750 UINTN
 751 PrintCharAt (
 752   IN UINTN     Column,
 753   IN UINTN     Row,
 754   CHAR16       Character
 755   );
 756
 757 /**
 758   Parse opcodes in the formset IFR binary.
 759
 760   @param  FormSet                Pointer of the FormSet data structure.
 761
 762   @retval EFI_SUCCESS            Opcode parse success.
 763   @retval Other                  Opcode parse fail.
 764
 765 **/
 766 EFI_STATUS
 767 ParseOpCodes (
 768   IN FORM_BROWSER_FORMSET              *FormSet
 769   );
 770
 771 /**
 772   Free resources allocated for a FormSet.
 773
 774   @param  FormSet                Pointer of the FormSet
 775
 776 **/
 777 VOID
 778 DestroyFormSet (
 779   IN OUT FORM_BROWSER_FORMSET  *FormSet
 780   );
 781
 782 /**
 783   This function displays the page frame.
 784
 785   @param  Selection              Selection contains the information about
 786                                  the Selection, form and formset to be displayed.
 787                                  Selection action may be updated in retrieve callback.
 788 **/
 789 VOID
 790 DisplayPageFrame (
 791   IN UI_MENU_SELECTION    *Selection
 792   );
 793
 794 /**
 795   Create a new string in HII Package List.
 796
 797   @param  String                 The String to be added
 798   @param  HiiHandle              The package list in the HII database to insert the
 799                                  specified string.
 800
 801   @return The output string.
 802
 803 **/
 804 EFI_STRING_ID
 805 NewString (
 806   IN  CHAR16                   *String,
 807   IN  EFI_HII_HANDLE           HiiHandle
 808   );
 809
 810 /**
 811   Delete a string from HII Package List.
 812
 813   @param  StringId               Id of the string in HII database.
 814   @param  HiiHandle              The HII package list handle.
 815
 816   @retval EFI_SUCCESS            The string was deleted successfully.
 817
 818 **/
 819 EFI_STATUS
 820 DeleteString (
 821   IN  EFI_STRING_ID            StringId,
 822   IN  EFI_HII_HANDLE           HiiHandle
 823   );
 824
 825 /**
 826   Get the string based on the StringId and HII Package List Handle.
 827
 828   @param  Token                  The String's ID.
 829   @param  HiiHandle              The package list in the HII database to search for
 830                                  the specified string.
 831
 832   @return The output string.
 833
 834 **/
 835 CHAR16 *
 836 GetToken (
 837   IN  EFI_STRING_ID                Token,
 838   IN  EFI_HII_HANDLE               HiiHandle
 839   );
 840
 841 /**
 842   Draw a pop up windows based on the dimension, number of lines and
 843   strings specified.
 844
 845   @param RequestedWidth  The width of the pop-up.
 846   @param NumberOfLines   The number of lines.
 847   @param Marker          The variable argument list for the list of string to be printed.
 848
 849 **/
 850 VOID
 851 CreateSharedPopUp (
 852   IN  UINTN                       RequestedWidth,
 853   IN  UINTN                       NumberOfLines,
 854   IN  VA_LIST                     Marker
 855   );
 856
 857 /**
 858   Routine used to abstract a generic dialog interface and return the selected key or string
 859
 860   @param  NumberOfLines          The number of lines for the dialog box
 861   @param  HotKey                 Defines whether a single character is parsed
 862                                  (TRUE) and returned in KeyValue or a string is
 863                                  returned in StringBuffer.  Two special characters
 864                                  are considered when entering a string, a SCAN_ESC
 865                                  and an CHAR_CARRIAGE_RETURN.  SCAN_ESC terminates
 866                                  string input and returns
 867   @param  MaximumStringSize      The maximum size in bytes of a typed in string
 868                                  (each character is a CHAR16) and the minimum
 869                                  string returned is two bytes
 870   @param  StringBuffer           The passed in pointer to the buffer which will
 871                                  hold the typed in string if HotKey is FALSE
 872   @param  KeyValue               The EFI_KEY value returned if HotKey is TRUE..
 873   @param  ...                    A series of (quantity == NumberOfLines) text
 874                                  strings which will be used to construct the dialog
 875                                  box
 876
 877   @retval EFI_SUCCESS            Displayed dialog and received user interaction
 878   @retval EFI_INVALID_PARAMETER  One of the parameters was invalid (e.g.
 879                                  (StringBuffer == NULL) && (HotKey == FALSE))
 880   @retval EFI_DEVICE_ERROR       User typed in an ESC character to exit the routine
 881
 882 **/
 883 EFI_STATUS
 884 EFIAPI
 885 CreateDialog (
 886   IN  UINTN                       NumberOfLines,
 887   IN  BOOLEAN                     HotKey,
 888   IN  UINTN                       MaximumStringSize,
 889   OUT CHAR16                      *StringBuffer,
 890   OUT EFI_INPUT_KEY               *KeyValue,
 891   ...
 892   );
 893
 894 /**
 895   Get Value for given Name from a NameValue Storage.
 896
 897   @param  Storage                The NameValue Storage.
 898   @param  Name                   The Name.
 899   @param  Value                  The retured Value.
 900   @param  GetValueFrom           Where to get source value, from EditValue or Value.
 901
 902   @retval EFI_SUCCESS            Value found for given Name.
 903   @retval EFI_NOT_FOUND          No such Name found in NameValue storage.
 904
 905 **/
 906 EFI_STATUS
 907 GetValueByName (
 908   IN FORMSET_STORAGE             *Storage,
 909   IN CHAR16                      *Name,
 910   IN OUT CHAR16                  **Value,
 911   IN GET_SET_QUESTION_VALUE_WITH GetValueFrom
 912   );
 913
 914 /**
 915   Set Value of given Name in a NameValue Storage.
 916
 917   @param  Storage                The NameValue Storage.
 918   @param  Name                   The Name.
 919   @param  Value                  The Value to set.
 920   @param  SetValueTo             Whether update editValue or Value.
 921
 922   @retval EFI_SUCCESS            Value found for given Name.
 923   @retval EFI_NOT_FOUND          No such Name found in NameValue storage.
 924
 925 **/
 926 EFI_STATUS
 927 SetValueByName (
 928   IN FORMSET_STORAGE             *Storage,
 929   IN CHAR16                      *Name,
 930   IN CHAR16                      *Value,
 931   IN GET_SET_QUESTION_VALUE_WITH SetValueTo
 932   );
 933
 934 /**
 935   Get Question's current Value.
 936
 937   @param  FormSet                FormSet data structure.
 938   @param  Form                   Form data structure.
 939   @param  Question               Question to be initialized.
 940   @param  GetValueFrom           Where to get value, may from editbuffer, buffer or hii driver.
 941
 942   @retval EFI_SUCCESS            The function completed successfully.
 943
 944 **/
 945 EFI_STATUS
 946 GetQuestionValue (
 947   IN FORM_BROWSER_FORMSET             *FormSet,
 948   IN FORM_BROWSER_FORM                *Form,
 949   IN OUT FORM_BROWSER_STATEMENT       *Question,
 950   IN GET_SET_QUESTION_VALUE_WITH      GetValueFrom
 951   );
 952
 953 /**
 954   Save Question Value to edit copy(cached) or Storage(uncached).
 955
 956   @param  FormSet                FormSet data structure.
 957   @param  Form                   Form data structure.
 958   @param  Question               Pointer to the Question.
 959   @param  SetValueTo             Update the question value to editbuffer , buffer or hii driver.
 960
 961   @retval EFI_SUCCESS            The function completed successfully.
 962
 963 **/
 964 EFI_STATUS
 965 SetQuestionValue (
 966   IN FORM_BROWSER_FORMSET             *FormSet,
 967   IN FORM_BROWSER_FORM                *Form,
 968   IN OUT FORM_BROWSER_STATEMENT       *Question,
 969   IN GET_SET_QUESTION_VALUE_WITH      SetValueTo
 970   );
 971
 972 /**
 973   Perform inconsistent check for a Form.
 974
 975   @param  FormSet                FormSet data structure.
 976   @param  Form                   Form data structure.
 977   @param  Question               The Question to be validated.
 978   @param  Type                   Validation type: InConsistent or NoSubmit
 979
 980   @retval EFI_SUCCESS            Form validation pass.
 981   @retval other                  Form validation failed.
 982
 983 **/
 984 EFI_STATUS
 985 ValidateQuestion (
 986   IN  FORM_BROWSER_FORMSET            *FormSet,
 987   IN  FORM_BROWSER_FORM               *Form,
 988   IN  FORM_BROWSER_STATEMENT          *Question,
 989   IN  UINTN                           Type
 990   );
 991
 992
 993 /**
 994   Discard data based on the input setting scope (Form, FormSet or System).
 995
 996   @param  FormSet                FormSet data structure.
 997   @param  Form                   Form data structure.
 998   @param  SettingScope           Setting Scope for Discard action.
 999
1000   @retval EFI_SUCCESS            The function completed successfully.
1001   @retval EFI_UNSUPPORTED        Unsupport SettingScope.
1002
1003 **/
1004 EFI_STATUS
1005 DiscardForm (
1006   IN FORM_BROWSER_FORMSET             *FormSet,
1007   IN FORM_BROWSER_FORM                *Form,
1008   IN BROWSER_SETTING_SCOPE            SettingScope
1009   );
1010
1011 /**
1012   Submit data based on the input Setting level (Form, FormSet or System).
1013
1014   @param  FormSet                FormSet data structure.
1015   @param  Form                   Form data structure.
1016   @param  SettingScope           Setting Scope for Submit action.
1017
1018   @retval EFI_SUCCESS            The function completed successfully.
1019   @retval EFI_UNSUPPORTED        Unsupport SettingScope.
1020
1021 **/
1022 EFI_STATUS
1023 SubmitForm (
1024   IN FORM_BROWSER_FORMSET             *FormSet,
1025   IN FORM_BROWSER_FORM                *Form,
1026   IN BROWSER_SETTING_SCOPE            SettingScope
1027   );
1028
1029 /**
1030   Reset Question to its default value.
1031
1032   @param  FormSet                The form set.
1033   @param  Form                   The form.
1034   @param  Question               The question.
1035   @param  DefaultId              The Class of the default.
1036
1037   @retval EFI_SUCCESS            Question is reset to default value.
1038
1039 **/
1040 EFI_STATUS
1041 GetQuestionDefault (
1042   IN FORM_BROWSER_FORMSET             *FormSet,
1043   IN FORM_BROWSER_FORM                *Form,
1044   IN FORM_BROWSER_STATEMENT           *Question,
1045   IN UINT16                           DefaultId
1046   );
1047
1048 /**
1049   Get current setting of Questions.
1050
1051   @param  FormSet                FormSet data structure.
1052
1053   @retval EFI_SUCCESS            The function completed successfully.
1054
1055 **/
1056 EFI_STATUS
1057 InitializeCurrentSetting (
1058   IN OUT FORM_BROWSER_FORMSET             *FormSet
1059   );
1060
1061 /**
1062   Initialize the internal data structure of a FormSet.
1063
1064   @param  Handle                 PackageList Handle
1065   @param  FormSetGuid            GUID of a formset. If not specified (NULL or zero
1066                                  GUID), take the first FormSet found in package
1067                                  list.
1068   @param  FormSet                FormSet data structure.
1069   @param  UpdateGlobalVar        Whether need to update the global variable.
1070
1071   @retval EFI_SUCCESS            The function completed successfully.
1072   @retval EFI_NOT_FOUND          The specified FormSet could not be found.
1073
1074 **/
1075 EFI_STATUS
1076 InitializeFormSet (
1077   IN  EFI_HII_HANDLE                   Handle,
1078   IN OUT EFI_GUID                      *FormSetGuid,
1079   OUT FORM_BROWSER_FORMSET             *FormSet,
1080   IN  BOOLEAN                          UpdateGlobalVar
1081   );
1082
1083 /**
1084   Reset Questions to their default value in a Form, Formset or System.
1085
1086   GetDefaultValueScope parameter decides which questions will reset
1087   to its default value.
1088
1089   @param  FormSet                FormSet data structure.
1090   @param  Form                   Form data structure.
1091   @param  DefaultId              The Class of the default.
1092   @param  SettingScope           Setting Scope for Default action.
1093   @param  GetDefaultValueScope   Get default value scope.
1094   @param  Storage                Get default value only for this storage.
1095
1096   @retval EFI_SUCCESS            The function completed successfully.
1097   @retval EFI_UNSUPPORTED        Unsupport SettingScope.
1098
1099 **/
1100 EFI_STATUS
1101 ExtractDefault (
1102   IN FORM_BROWSER_FORMSET             *FormSet,
1103   IN FORM_BROWSER_FORM                *Form,
1104   IN UINT16                           DefaultId,
1105   IN BROWSER_SETTING_SCOPE            SettingScope,
1106   IN BROWSER_GET_DEFAULT_VALUE        GetDefaultValueScope,
1107   IN FORMSET_STORAGE                  *Storage OPTIONAL
1108   );
1109
1110 /**
1111   Initialize Question's Edit copy from Storage.
1112
1113   @param  Selection              Selection contains the information about
1114                                  the Selection, form and formset to be displayed.
1115                                  Selection action may be updated in retrieve callback.
1116                                  If Selection is NULL, only initialize Question value.
1117   @param  FormSet                FormSet data structure.
1118   @param  Form                   Form data structure.
1119
1120   @retval EFI_SUCCESS            The function completed successfully.
1121
1122 **/
1123 EFI_STATUS
1124 LoadFormConfig (
1125   IN OUT UI_MENU_SELECTION    *Selection,
1126   IN FORM_BROWSER_FORMSET     *FormSet,
1127   IN FORM_BROWSER_FORM        *Form
1128   );
1129
1130 /**
1131   Initialize Question's Edit copy from Storage for the whole Formset.
1132
1133   @param  Selection              Selection contains the information about
1134                                  the Selection, form and formset to be displayed.
1135                                  Selection action may be updated in retrieve callback.
1136                                  If Selection is NULL, only initialize Question value.
1137   @param  FormSet                FormSet data structure.
1138
1139   @retval EFI_SUCCESS            The function completed successfully.
1140
1141 **/
1142 EFI_STATUS
1143 LoadFormSetConfig (
1144   IN OUT UI_MENU_SELECTION    *Selection,
1145   IN     FORM_BROWSER_FORMSET *FormSet
1146   );
1147
1148 /**
1149   Convert setting of Buffer Storage or NameValue Storage to <ConfigResp>.
1150
1151   @param  Buffer                 The Storage to be conveted.
1152   @param  ConfigResp             The returned <ConfigResp>.
1153   @param  SingleForm             Whether update data for single form or formset level.
1154
1155   @retval EFI_SUCCESS            Convert success.
1156   @retval EFI_INVALID_PARAMETER  Incorrect storage type.
1157
1158 **/
1159 EFI_STATUS
1160 StorageToConfigResp (
1161   IN VOID                    *Buffer,
1162   IN CHAR16                  **ConfigResp,
1163   IN BOOLEAN                 SingleForm
1164   );
1165
1166 /**
1167   Convert <ConfigResp> to settings in Buffer Storage or NameValue Storage.
1168
1169   @param  Storage                The Storage to receive the settings.
1170   @param  ConfigResp             The <ConfigResp> to be converted.
1171
1172   @retval EFI_SUCCESS            Convert success.
1173   @retval EFI_INVALID_PARAMETER  Incorrect storage type.
1174
1175 **/
1176 EFI_STATUS
1177 ConfigRespToStorage (
1178   IN FORMSET_STORAGE         *Storage,
1179   IN CHAR16                  *ConfigResp
1180   );
1181
1182 /**
1183   Fill storage's edit copy with settings requested from Configuration Driver.
1184
1185   @param  FormSet                FormSet data structure.
1186   @param  Storage                Buffer Storage.
1187
1188   @retval EFI_SUCCESS            The function completed successfully.
1189
1190 **/
1191 EFI_STATUS
1192 LoadStorage (
1193   IN FORM_BROWSER_FORMSET    *FormSet,
1194   IN FORMSET_STORAGE         *Storage
1195   );
1196
1197 /**
1198   Fetch the Ifr binary data of a FormSet.
1199
1200   @param  Handle                 PackageList Handle
1201   @param  FormSetGuid            GUID of a formset. If not specified (NULL or zero
1202                                  GUID), take the first FormSet found in package
1203                                  list.
1204   @param  BinaryLength           The length of the FormSet IFR binary.
1205   @param  BinaryData             The buffer designed to receive the FormSet.
1206
1207   @retval EFI_SUCCESS            Buffer filled with the requested FormSet.
1208                                  BufferLength was updated.
1209   @retval EFI_INVALID_PARAMETER  The handle is unknown.
1210   @retval EFI_NOT_FOUND          A form or FormSet on the requested handle cannot
1211                                  be found with the requested FormId.
1212
1213 **/
1214 EFI_STATUS
1215 GetIfrBinaryData (
1216   IN  EFI_HII_HANDLE   Handle,
1217   IN OUT EFI_GUID      *FormSetGuid,
1218   OUT UINTN            *BinaryLength,
1219   OUT UINT8            **BinaryData
1220   );
1221
1222 /**
1223   Save globals used by previous call to SendForm(). SendForm() may be called from
1224   HiiConfigAccess.Callback(), this will cause SendForm() be reentried.
1225   So, save globals of previous call to SendForm() and restore them upon exit.
1226
1227 **/
1228 VOID
1229 SaveBrowserContext (
1230   VOID
1231   );
1232
1233 /**
1234   Restore globals used by previous call to SendForm().
1235
1236 **/
1237 VOID
1238 RestoreBrowserContext (
1239   VOID
1240   );
1241
1242 /**
1243   This is the routine which an external caller uses to direct the browser
1244   where to obtain it's information.
1245
1246
1247   @param This            The Form Browser protocol instanse.
1248   @param Handles         A pointer to an array of Handles.  If HandleCount > 1 we
1249                          display a list of the formsets for the handles specified.
1250   @param HandleCount     The number of Handles specified in Handle.
1251   @param FormSetGuid     This field points to the EFI_GUID which must match the Guid
1252                          field in the EFI_IFR_FORM_SET op-code for the specified
1253                          forms-based package. If FormSetGuid is NULL, then this
1254                          function will display the first found forms package.
1255   @param FormId          This field specifies which EFI_IFR_FORM to render as the first
1256                          displayable page. If this field has a value of 0x0000, then
1257                          the forms browser will render the specified forms in their encoded order.
1258                          ScreenDimenions - This allows the browser to be called so that it occupies a
1259                          portion of the physical screen instead of dynamically determining the screen dimensions.
1260                          ActionRequest   - Points to the action recommended by the form.
1261   @param ScreenDimensions Points to recommended form dimensions, including any non-content area, in
1262                           characters.
1263   @param ActionRequest       Points to the action recommended by the form.
1264
1265   @retval  EFI_SUCCESS            The function completed successfully.
1266   @retval  EFI_INVALID_PARAMETER  One of the parameters has an invalid value.
1267   @retval  EFI_NOT_FOUND          No valid forms could be found to display.
1268
1269 **/
1270 EFI_STATUS
1271 EFIAPI
1272 SendForm (
1273   IN  CONST EFI_FORM_BROWSER2_PROTOCOL *This,
1274   IN  EFI_HII_HANDLE                   *Handles,
1275   IN  UINTN                            HandleCount,
1276   IN  EFI_GUID                         *FormSetGuid, OPTIONAL
1277   IN  UINT16                           FormId, OPTIONAL
1278   IN  CONST EFI_SCREEN_DESCRIPTOR      *ScreenDimensions, OPTIONAL
1279   OUT EFI_BROWSER_ACTION_REQUEST       *ActionRequest  OPTIONAL
1280   );
1281
1282 /**
1283   This function is called by a callback handler to retrieve uncommitted state
1284   data from the browser.
1285
1286   @param  This                   A pointer to the EFI_FORM_BROWSER2_PROTOCOL
1287                                  instance.
1288   @param  ResultsDataSize        A pointer to the size of the buffer associated
1289                                  with ResultsData.
1290   @param  ResultsData            A string returned from an IFR browser or
1291                                  equivalent. The results string will have no
1292                                  routing information in them.
1293   @param  RetrieveData           A BOOLEAN field which allows an agent to retrieve
1294                                  (if RetrieveData = TRUE) data from the uncommitted
1295                                  browser state information or set (if RetrieveData
1296                                  = FALSE) data in the uncommitted browser state
1297                                  information.
1298   @param  VariableGuid           An optional field to indicate the target variable
1299                                  GUID name to use.
1300   @param  VariableName           An optional field to indicate the target
1301                                  human-readable variable name.
1302
1303   @retval EFI_SUCCESS            The results have been distributed or are awaiting
1304                                  distribution.
1305   @retval EFI_BUFFER_TOO_SMALL   The ResultsDataSize specified was too small to
1306                                  contain the results data.
1307
1308 **/
1309 EFI_STATUS
1310 EFIAPI
1311 BrowserCallback (
1312   IN CONST EFI_FORM_BROWSER2_PROTOCOL  *This,
1313   IN OUT UINTN                         *ResultsDataSize,
1314   IN OUT EFI_STRING                    ResultsData,
1315   IN BOOLEAN                           RetrieveData,
1316   IN CONST EFI_GUID                    *VariableGuid, OPTIONAL
1317   IN CONST CHAR16                      *VariableName  OPTIONAL
1318   );
1319
1320 /**
1321   Find menu which will show next time.
1322
1323   @param Selection       On input, Selection tell setup browser the information
1324                          about the Selection, form and formset to be displayed.
1325                          On output, Selection return the screen item that is selected
1326                          by user.
1327   @param Repaint         Whether need to repaint the menu.
1328   @param NewLine         Whether need to show at new line.
1329
1330   @retval TRUE           Need return.
1331   @retval FALSE          No need to return.
1332 **/
1333 BOOLEAN
1334 FindNextMenu (
1335   IN OUT UI_MENU_SELECTION    *Selection,
1336   IN     BOOLEAN              *Repaint,
1337   IN     BOOLEAN              *NewLine
1338   );
1339
1340 /**
1341   check whether the formset need to update the NV.
1342
1343   @param  FormSet                FormSet data structure.
1344   @param  SetValue               Whether set new value or clear old value.
1345
1346 **/
1347 VOID
1348 UpdateNvInfoInForm (
1349   IN FORM_BROWSER_FORMSET  *FormSet,
1350   IN BOOLEAN               SetValue
1351   );
1352
1353 /**
1354   check whether the formset need to update the NV.
1355
1356   @param  FormSet                FormSet data structure.
1357
1358   @retval TRUE                   Need to update the NV.
1359   @retval FALSE                  No need to update the NV.
1360 **/
1361 BOOLEAN
1362 IsNvUpdateRequired (
1363   IN FORM_BROWSER_FORMSET  *FormSet
1364   );
1365
1366 /**
1367   Call the call back function for the question and process the return action.
1368
1369   @param Selection             On input, Selection tell setup browser the information
1370                                about the Selection, form and formset to be displayed.
1371                                On output, Selection return the screen item that is selected
1372                                by user.
1373   @param Statement             The Question which need to call.
1374   @param Action                The action request.
1375   @param SkipSaveOrDiscard     Whether skip save or discard action.
1376
1377   @retval EFI_SUCCESS          The call back function excutes successfully.
1378   @return Other value if the call back function failed to excute.
1379 **/
1380 EFI_STATUS
1381 ProcessCallBackFunction (
1382   IN OUT UI_MENU_SELECTION               *Selection,
1383   IN     FORM_BROWSER_STATEMENT          *Question,
1384   IN     EFI_BROWSER_ACTION              Action,
1385   IN     BOOLEAN                         SkipSaveOrDiscard
1386   );
1387
1388 /**
1389   Find the matched FormSet context in the backup maintain list based on HiiHandle.
1390
1391   @param Handle  The Hii Handle.
1392
1393   @return the found FormSet context. If no found, NULL will return.
1394
1395 **/
1396 FORM_BROWSER_FORMSET *
1397 GetFormSetFromHiiHandle (
1398   EFI_HII_HANDLE Handle
1399   );
1400
1401 /**
1402   Check whether the input HII handle is the FormSet that is being used.
1403
1404   @param Handle  The Hii Handle.
1405
1406   @retval TRUE   HII handle is being used.
1407   @retval FALSE  HII handle is not being used.
1408
1409 **/
1410 BOOLEAN
1411 IsHiiHandleInBrowserContext (
1412   EFI_HII_HANDLE Handle
1413   );
1414
1415 /**
1416   Configure what scope the hot key will impact.
1417   All hot keys have the same scope. The mixed hot keys with the different level are not supported.
1418   If no scope is set, the default scope will be FormSet level.
1419   After all registered hot keys are removed, previous Scope can reset to another level.
1420
1421   @param[in] Scope               Scope level to be set.
1422
1423   @retval EFI_SUCCESS            Scope is set correctly.
1424   @retval EFI_INVALID_PARAMETER  Scope is not the valid value specified in BROWSER_SETTING_SCOPE.
1425   @retval EFI_UNSPPORTED         Scope level is different from current one that the registered hot keys have.
1426
1427 **/
1428 EFI_STATUS
1429 EFIAPI
1430 SetScope (
1431   IN BROWSER_SETTING_SCOPE Scope
1432   );
1433
1434 /**
1435   Register the hot key with its browser action, or unregistered the hot key.
1436   Only support hot key that is not printable character (control key, function key, etc.).
1437   If the action value is zero, the hot key will be unregistered if it has been registered.
1438   If the same hot key has been registered, the new action and help string will override the previous ones.
1439
1440   @param[in] KeyData     A pointer to a buffer that describes the keystroke
1441                          information for the hot key. Its type is EFI_INPUT_KEY to
1442                          be supported by all ConsoleIn devices.
1443   @param[in] Action      Action value that describes what action will be trigged when the hot key is pressed.
1444   @param[in] DefaultId   Specifies the type of defaults to retrieve, which is only for DEFAULT action.
1445   @param[in] HelpString  Help string that describes the hot key information.
1446                          Its value may be NULL for the unregistered hot key.
1447
1448   @retval EFI_SUCCESS            Hot key is registered or unregistered.
1449   @retval EFI_INVALID_PARAMETER  KeyData is NULL.
1450   @retval EFI_NOT_FOUND          KeyData is not found to be unregistered.
1451   @retval EFI_UNSUPPORTED        Key represents a printable character. It is conflicted with Browser.
1452 **/
1453 EFI_STATUS
1454 EFIAPI
1455 RegisterHotKey (
1456   IN EFI_INPUT_KEY *KeyData,
1457   IN UINT32        Action,
1458   IN UINT16        DefaultId,
1459   IN EFI_STRING    HelpString OPTIONAL
1460   );
1461
1462 /**
1463   Register Exit handler function.
1464   When more than one handler function is registered, the latter one will override the previous one.
1465   When NULL handler is specified, the previous Exit handler will be unregistered.
1466
1467   @param[in] Handler      Pointer to handler function.
1468
1469 **/
1470 VOID
1471 EFIAPI
1472 RegiserExitHandler (
1473   IN EXIT_HANDLER Handler
1474   );
1475
1476 /**
1477   Create reminder to let user to choose save or discard the changed browser data.
1478   Caller can use it to actively check the changed browser data.
1479
1480   @retval BROWSER_NO_CHANGES       No browser data is changed.
1481   @retval BROWSER_SAVE_CHANGES     The changed browser data is saved.
1482   @retval BROWSER_DISCARD_CHANGES  The changed browser data is discard.
1483
1484 **/
1485 UINT32
1486 EFIAPI
1487 SaveReminder (
1488   VOID
1489   );
1490
1491 /**
1492   Find the registered HotKey based on KeyData.
1493
1494   @param[in] KeyData     A pointer to a buffer that describes the keystroke
1495                          information for the hot key.
1496
1497   @return The registered HotKey context. If no found, NULL will return.
1498 **/
1499 BROWSER_HOT_KEY *
1500 GetHotKeyFromRegisterList (
1501   IN EFI_INPUT_KEY *KeyData
1502   );
1503
1504 #endif