[mirror_edk2.git] / EdkModulePkg / Library / EdkIfrSupportLib / IfrOnTheFly.c

/*++\r
Copyright (c) 2006, Intel Corporation                                                         \r
All rights reserved. This program and the accompanying materials                          \r
are licensed and made available under the terms and conditions of the BSD License         \r
which accompanies this distribution.  The full text of the license may be found at        \r
http://opensource.org/licenses/bsd-license.php                                            \r
                                                                                          \r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     \r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             \r
\r
Module Name:\r
  IfrOnTheFly.c\r
\r
Abstract:\r
\r
  Library Routines to create IFR on-the-fly\r
\r
Revision History:\r
\r
--*/\r
\r
EFI_STATUS\r
CreateFormSet (\r
  IN      CHAR16              *FormSetTitle,\r
  IN      EFI_GUID            *Guid,\r
  IN      UINT8               Class,\r
  IN      UINT8               SubClass,\r
  IN OUT  VOID                **FormBuffer,\r
  IN OUT  VOID                **StringBuffer\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  Create a formset\r
  \r
Arguments:\r
  \r
  FormSetTitle        - Title of formset\r
  \r
  Guid                - Guid of formset\r
  \r
  Class               - Class of formset\r
  \r
  SubClass            - Sub class of formset\r
  \r
  FormBuffer          - Pointer of the formset created\r
  \r
  StringBuffer        - Pointer of FormSetTitile string created\r
  \r
Returns: \r
\r
  EFI_OUT_OF_RESOURCES    - No enough buffer to allocate\r
  \r
  EFI_SUCCESS             - Formset successfully created\r
\r
--*/\r
{\r
  EFI_STATUS            Status;\r
  EFI_HII_IFR_PACK      IfrPack;\r
  EFI_IFR_FORM_SET      FormSet;\r
  EFI_IFR_END_FORM_SET  EndFormSet;\r
  UINT8                 *Destination;\r
  CHAR16                CurrentLanguage[4];\r
  STRING_REF            StringToken;\r
\r
  //\r
  // Pre-allocate a buffer sufficient for us to work from.\r
  //\r
  FormBuffer = AllocateZeroPool (DEFAULT_FORM_BUFFER_SIZE);\r
  if (FormBuffer == NULL) {\r
    return EFI_OUT_OF_RESOURCES;\r
  }\r
\r
  //\r
  // Pre-allocate a buffer sufficient for us to work from.\r
  //\r
  StringBuffer = AllocateZeroPool (DEFAULT_STRING_BUFFER_SIZE);\r
  if (StringBuffer == NULL) {\r
    gBS->FreePool (FormBuffer);\r
    return EFI_OUT_OF_RESOURCES;\r
  }\r
\r
  //\r
  // Obtain current language value\r
  //\r
  GetCurrentLanguage (CurrentLanguage);\r
\r
  //\r
  // Add the FormSetTitle to the string buffer and get the StringToken\r
  //\r
  Status = AddString (*StringBuffer, CurrentLanguage, FormSetTitle, &StringToken);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  //\r
  // Initialize the Ifr Package header data\r
  //\r
  IfrPack.Header.Length = sizeof (EFI_HII_PACK_HEADER) + sizeof (EFI_IFR_FORM_SET) + sizeof (EFI_IFR_END_FORM_SET);\r
  IfrPack.Header.Type   = EFI_HII_IFR;\r
\r
  //\r
  // Initialize FormSet with the appropriate information\r
  //\r
  FormSet.Header.OpCode = EFI_IFR_FORM_SET_OP;\r
  FormSet.Header.Length = sizeof (EFI_IFR_FORM_SET);\r
  FormSet.FormSetTitle  = StringToken;\r
  FormSet.Class         = Class;\r
  FormSet.SubClass      = SubClass;\r
  CopyMem (&FormSet.Guid, Guid, sizeof (EFI_GUID));\r
\r
  //\r
  // Initialize the end formset data\r
  //\r
  EndFormSet.Header.Length  = sizeof (EFI_IFR_END_FORM_SET);\r
  EndFormSet.Header.OpCode  = EFI_IFR_END_FORM_SET_OP;\r
\r
  Destination               = (UINT8 *) *FormBuffer;\r
\r
  //\r
  // Copy the formset/endformset data to the form buffer\r
  //\r
  CopyMem (Destination, &IfrPack, sizeof (EFI_HII_PACK_HEADER));\r
\r
  Destination = Destination + sizeof (EFI_HII_PACK_HEADER);\r
\r
  CopyMem (Destination, &FormSet, sizeof (EFI_IFR_FORM_SET));\r
\r
  Destination = Destination + sizeof (EFI_IFR_FORM_SET);\r
\r
  CopyMem (Destination, &EndFormSet, sizeof (EFI_IFR_END_FORM_SET));\r
  return EFI_SUCCESS;\r
}\r
\r
\r
EFI_STATUS\r
CreateForm (\r
  IN      CHAR16              *FormTitle,\r
  IN      UINT16              FormId,\r
  IN OUT  VOID                *FormBuffer,\r
  IN OUT  VOID                *StringBuffer\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  Create a form\r
  \r
Arguments:\r
  \r
  FormTitle       - Title of the form\r
  \r
  FormId          - Id of the form\r
  \r
  FormBuffer          - Pointer of the form created\r
  \r
  StringBuffer        - Pointer of FormTitil string created\r
  \r
Returns: \r
\r
  EFI_SUCCESS     - Form successfully created\r
\r
--*/\r
{\r
  EFI_STATUS        Status;\r
  EFI_IFR_FORM      Form;\r
  EFI_IFR_END_FORM  EndForm;\r
  CHAR16            CurrentLanguage[4];\r
  STRING_REF        StringToken;\r
\r
  //\r
  // Obtain current language value\r
  //\r
  GetCurrentLanguage (CurrentLanguage);\r
\r
  Status = AddString (StringBuffer, CurrentLanguage, FormTitle, &StringToken);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  Form.Header.OpCode  = EFI_IFR_FORM_OP;\r
  Form.Header.Length  = sizeof (EFI_IFR_FORM);\r
  Form.FormId         = FormId;\r
  Form.FormTitle      = StringToken;\r
\r
  Status              = AddOpCode (FormBuffer, &Form);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  EndForm.Header.OpCode = EFI_IFR_END_FORM_OP;\r
  EndForm.Header.Length = sizeof (EFI_IFR_END_FORM);\r
\r
  Status                = AddOpCode (FormBuffer, &EndForm);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
\r
EFI_STATUS\r
CreateSubTitle (\r
  IN      CHAR16              *SubTitle,\r
  IN OUT  VOID                *FormBuffer,\r
  IN OUT  VOID                *StringBuffer\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  Create a SubTitle\r
  \r
Arguments:\r
  \r
  SubTitle        - Sub title to be created\r
  \r
  FormBuffer      - Where this subtitle to add to\r
  \r
  StringBuffer    - String buffer created for subtitle\r
  \r
Returns: \r
\r
  EFI_SUCCESS     - Subtitle successfully created\r
\r
--*/\r
{\r
  EFI_STATUS        Status;\r
  EFI_IFR_SUBTITLE  Subtitle;\r
  CHAR16            CurrentLanguage[4];\r
  STRING_REF        StringToken;\r
\r
  //\r
  // Obtain current language value\r
  //\r
  GetCurrentLanguage (CurrentLanguage);\r
\r
  Status = AddString (StringBuffer, CurrentLanguage, SubTitle, &StringToken);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  Subtitle.Header.OpCode  = EFI_IFR_SUBTITLE_OP;\r
  Subtitle.Header.Length  = sizeof (EFI_IFR_SUBTITLE);\r
  Subtitle.SubTitle       = StringToken;\r
\r
  Status                  = AddOpCode (FormBuffer, &Subtitle);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
\r
EFI_STATUS\r
CreateText (\r
  IN      CHAR16              *String,\r
  IN      CHAR16              *String2,\r
  IN      CHAR16              *String3,\r
  IN      UINT8               Flags,\r
  IN      UINT16              Key,\r
  IN OUT  VOID                *FormBuffer,\r
  IN OUT  VOID                *StringBuffer\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  Create a line of text\r
  \r
Arguments:\r
  \r
  String          - First string of the text\r
  \r
  String2         - Second string of the text\r
  \r
  String3         - Help string of the text\r
  \r
  Flags           - Flag of the text\r
  \r
  Key             - Key of the text\r
  \r
  FormBuffer      - The form where this text adds to\r
  \r
  StringBuffer    - String buffer created for String, String2 and String3\r
  \r
Returns: \r
\r
  EFI_SUCCESS     - Text successfully created\r
\r
--*/\r
{\r
  EFI_STATUS    Status;\r
  EFI_IFR_TEXT  Text;\r
  CHAR16        CurrentLanguage[4];\r
  STRING_REF    StringToken;\r
\r
  //\r
  // Obtain current language value\r
  //\r
  GetCurrentLanguage (CurrentLanguage);\r
\r
  //\r
  // Add first string, get first string's token\r
  //\r
  Status = AddString (StringBuffer, CurrentLanguage, String, &StringToken);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  Text.Header.OpCode  = EFI_IFR_TEXT_OP;\r
  Text.Header.Length  = sizeof (EFI_IFR_TEXT);\r
  Text.Text           = StringToken;\r
\r
  //\r
  // Add second string, get first string's token\r
  //\r
  Status = AddString (StringBuffer, CurrentLanguage, String2, &StringToken);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  Text.TextTwo  = StringToken;\r
\r
  Text.Flags    = (UINT8) (Flags | EFI_IFR_FLAG_CREATED);\r
  Text.Key      = Key;\r
\r
  //\r
  // Add second string, get first string's token\r
  //\r
  Status = AddString (StringBuffer, CurrentLanguage, String3, &StringToken);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  Text.Help = StringToken;\r
\r
  Status    = AddOpCode (FormBuffer, &Text);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
\r
EFI_STATUS\r
CreateGoto (\r
  IN      UINT16              FormId,\r
  IN      CHAR16              *Prompt,\r
  IN OUT  VOID                *FormBuffer,\r
  IN OUT  VOID                *StringBuffer\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  Create a hyperlink\r
  \r
Arguments:\r
  \r
  FormId        - Form ID of the hyperlink\r
  \r
  Prompt        - Prompt of the hyperlink\r
  \r
  FormBuffer    - The form where this hyperlink adds to\r
  \r
  StringBuffer  - String buffer created for Prompt\r
  \r
Returns: \r
\r
  EFI_SUCCESS     - Hyperlink successfully created\r
\r
--*/\r
{\r
  EFI_STATUS  Status;\r
  EFI_IFR_REF Hyperlink;\r
  CHAR16      CurrentLanguage[4];\r
  STRING_REF  StringToken;\r
\r
  //\r
  // Obtain current language value\r
  //\r
  GetCurrentLanguage (CurrentLanguage);\r
\r
  Status = AddString (StringBuffer, CurrentLanguage, Prompt, &StringToken);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  Hyperlink.Header.OpCode = EFI_IFR_REF_OP;\r
  Hyperlink.Header.Length = sizeof (EFI_IFR_REF);\r
  Hyperlink.FormId        = FormId;\r
  Hyperlink.Prompt        = StringToken;\r
\r
  Status                  = AddOpCode (FormBuffer, &Hyperlink);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
\r
EFI_STATUS\r
CreateOneOf (\r
  IN      UINT16              QuestionId,\r
  IN      UINT8               DataWidth,\r
  IN      CHAR16              *Prompt,\r
  IN      CHAR16              *Help,\r
  IN      IFR_OPTION          *OptionsList,\r
  IN      UINTN               OptionCount,\r
  IN OUT  VOID                *FormBuffer,\r
  IN OUT  VOID                *StringBuffer\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  Create a one-of question with a set of options to choose from.  The\r
  OptionsList is a pointer to a null-terminated list of option descriptions.\r
  \r
Arguments:\r
  \r
  QuestionId      - Question ID of the one-of box\r
  \r
  DataWidth       - DataWidth of the one-of box\r
  \r
  Prompt          - Prompt of the one-of box\r
  \r
  Help            - Help of the one-of box\r
  \r
  OptionsList     - Each string in it is an option of the one-of box\r
  \r
  OptionCount     - Option string count\r
  \r
  FormBuffer      - The form where this one-of box adds to\r
  \r
  StringBuffer    - String buffer created for Prompt, Help and Option strings\r
  \r
Returns: \r
\r
  EFI_DEVICE_ERROR    - DataWidth > 2\r
\r
  EFI_SUCCESS         - One-Of box successfully created.\r
\r
--*/\r
{\r
  EFI_STATUS            Status;\r
  UINTN                 Index;\r
  EFI_IFR_ONE_OF        OneOf;\r
  EFI_IFR_ONE_OF_OPTION OneOfOption;\r
  EFI_IFR_END_ONE_OF    EndOneOf;\r
  CHAR16                CurrentLanguage[4];\r
  STRING_REF            StringToken;\r
\r
  //\r
  // We do not create op-code storage widths for one-of in excess of 16 bits for now\r
  //\r
  if (DataWidth > 2) {\r
    return EFI_DEVICE_ERROR;\r
  }\r
\r
  //\r
  // Obtain current language value\r
  //\r
  GetCurrentLanguage (CurrentLanguage);\r
\r
  //\r
  // Add first string, get first string's token\r
  //\r
  Status = AddString (StringBuffer, CurrentLanguage, Prompt, &StringToken);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  OneOf.Header.OpCode = EFI_IFR_ONE_OF_OP;\r
  OneOf.Header.Length = sizeof (EFI_IFR_ONE_OF);\r
  OneOf.QuestionId    = QuestionId;\r
  OneOf.Width         = DataWidth;\r
  OneOf.Prompt        = StringToken;\r
\r
  //\r
  // Add second string, get first string's token\r
  //\r
  Status = AddString (StringBuffer, CurrentLanguage, Help, &StringToken);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  OneOf.Help  = StringToken;\r
\r
  Status      = AddOpCode (FormBuffer, &OneOf);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  for (Index = 0; Index < OptionCount; Index++) {\r
    OneOfOption.Header.OpCode = EFI_IFR_ONE_OF_OPTION_OP;\r
    OneOfOption.Header.Length = sizeof (EFI_IFR_ONE_OF_OPTION);\r
\r
    //\r
    // Add string and get token back\r
    //\r
    Status              = AddString (StringBuffer, CurrentLanguage, OptionsList[Index].OptionString, &StringToken);\r
\r
    OneOfOption.Option  = StringToken;\r
    OneOfOption.Value   = OptionsList[Index].Value;\r
    OneOfOption.Flags   = (UINT8) (OptionsList[Index].Flags | EFI_IFR_FLAG_CREATED);\r
    OneOfOption.Key     = OptionsList[Index].Key;\r
\r
    Status              = AddOpCode (FormBuffer, &OneOfOption);\r
\r
    if (EFI_ERROR (Status)) {\r
      return Status;\r
    }\r
  }\r
\r
  EndOneOf.Header.Length  = sizeof (EFI_IFR_END_ONE_OF);\r
  EndOneOf.Header.OpCode  = EFI_IFR_END_ONE_OF_OP;\r
\r
  Status                  = AddOpCode (FormBuffer, &EndOneOf);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
EFI_STATUS\r
CreateOrderedList (\r
  IN      UINT16              QuestionId,\r
  IN      UINT8               MaxEntries,\r
  IN      CHAR16              *Prompt,\r
  IN      CHAR16              *Help,\r
  IN      IFR_OPTION          *OptionsList,\r
  IN      UINTN               OptionCount,\r
  IN OUT  VOID                *FormBuffer,\r
  IN OUT  VOID                *StringBuffer\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  Create a one-of question with a set of options to choose from.  The\r
  OptionsList is a pointer to a null-terminated list of option descriptions.\r
  \r
Arguments:\r
  \r
  QuestionId      - Question ID of the ordered list\r
  \r
  MaxEntries      - MaxEntries of the ordered list\r
  \r
  Prompt          - Prompt of the ordered list\r
  \r
  Help            - Help of the ordered list\r
  \r
  OptionsList     - Each string in it is an option of the ordered list\r
  \r
  OptionCount     - Option string count\r
  \r
  FormBuffer      - The form where this ordered list adds to\r
  \r
  StringBuffer    - String buffer created for Prompt, Help and Option strings\r
  \r
Returns: \r
\r
  EFI_SUCCESS     - Ordered list successfully created.\r
\r
--*/\r
{\r
  EFI_STATUS            Status;\r
  UINTN                 Index;\r
  EFI_IFR_ORDERED_LIST  OrderedList;\r
  EFI_IFR_ONE_OF_OPTION OrderedListOption;\r
  EFI_IFR_END_ONE_OF    EndOrderedList;\r
  CHAR16                CurrentLanguage[4];\r
  STRING_REF            StringToken;\r
\r
  //\r
  // Obtain current language value\r
  //\r
  GetCurrentLanguage (CurrentLanguage);\r
\r
  //\r
  // Add first string, get first string's token\r
  //\r
  Status = AddString (StringBuffer, CurrentLanguage, Prompt, &StringToken);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  OrderedList.Header.OpCode = EFI_IFR_ORDERED_LIST_OP;\r
  OrderedList.Header.Length = sizeof (EFI_IFR_ORDERED_LIST);\r
  OrderedList.QuestionId    = QuestionId;\r
  OrderedList.MaxEntries    = MaxEntries;\r
  OrderedList.Prompt        = StringToken;\r
\r
  //\r
  // Add second string, get first string's token\r
  //\r
  Status = AddString (StringBuffer, CurrentLanguage, Help, &StringToken);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  OrderedList.Help  = StringToken;\r
\r
  Status            = AddOpCode (FormBuffer, &OrderedList);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  for (Index = 0; Index < OptionCount; Index++) {\r
    OrderedListOption.Header.OpCode = EFI_IFR_ONE_OF_OPTION_OP;\r
    OrderedListOption.Header.Length = sizeof (EFI_IFR_ONE_OF_OPTION);\r
\r
    //\r
    // Add string and get token back\r
    //\r
    Status                    = AddString (StringBuffer, CurrentLanguage, OptionsList[Index].OptionString, &StringToken);\r
\r
    OrderedListOption.Option  = StringToken;\r
    OrderedListOption.Value   = OptionsList[Index].Value;\r
    OrderedListOption.Flags   = (UINT8) (OptionsList[Index].Flags | EFI_IFR_FLAG_CREATED);\r
    OrderedListOption.Key     = OptionsList[Index].Key;\r
\r
    Status                    = AddOpCode (FormBuffer, &OrderedListOption);\r
\r
    if (EFI_ERROR (Status)) {\r
      return Status;\r
    }\r
  }\r
\r
  EndOrderedList.Header.Length  = sizeof (EFI_IFR_END_ONE_OF);\r
  EndOrderedList.Header.OpCode  = EFI_IFR_END_ONE_OF_OP;\r
\r
  Status                        = AddOpCode (FormBuffer, &EndOrderedList);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
\r
EFI_STATUS\r
CreateCheckBox (\r
  IN      UINT16              QuestionId,\r
  IN      UINT8               DataWidth,\r
  IN      CHAR16              *Prompt,\r
  IN      CHAR16              *Help,\r
  IN      UINT8               Flags,\r
  IN OUT  VOID                *FormBuffer,\r
  IN OUT  VOID                *StringBuffer\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  Create a checkbox\r
  \r
Arguments:\r
  \r
  QuestionId      - Question ID of the check box\r
  \r
  DataWidth       - DataWidth of the check box\r
  \r
  Prompt          - Prompt of the check box\r
  \r
  Help            - Help of the check box\r
  \r
  Flags           - Flags of the check box\r
  \r
  FormBuffer      - The form where this check box adds to\r
  \r
  StringBuffer    - String buffer created for Prompt and Help.\r
  \r
Returns: \r
\r
  EFI_DEVICE_ERROR    - DataWidth > 1\r
\r
  EFI_SUCCESS         - Check box successfully created\r
\r
--*/\r
{\r
  EFI_STATUS        Status;\r
  EFI_IFR_CHECKBOX  CheckBox;\r
  CHAR16            CurrentLanguage[4];\r
  STRING_REF        StringToken;\r
\r
  //\r
  // We do not create op-code storage widths for checkbox in excess of 8 bits for now\r
  //\r
  if (DataWidth > 1) {\r
    return EFI_DEVICE_ERROR;\r
  }\r
\r
  //\r
  // Obtain current language value\r
  //\r
  GetCurrentLanguage (CurrentLanguage);\r
\r
  //\r
  // Add first string, get first string's token\r
  //\r
  Status = AddString (StringBuffer, CurrentLanguage, Prompt, &StringToken);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  CheckBox.Header.OpCode  = EFI_IFR_CHECKBOX_OP;\r
  CheckBox.Header.Length  = sizeof (EFI_IFR_CHECKBOX);\r
  CheckBox.QuestionId     = QuestionId;\r
  CheckBox.Width          = DataWidth;\r
  CheckBox.Prompt         = StringToken;\r
\r
  //\r
  // Add second string, get first string's token\r
  //\r
  Status = AddString (StringBuffer, CurrentLanguage, Help, &StringToken);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  CheckBox.Help   = StringToken;\r
  CheckBox.Flags  = (UINT8) (Flags | EFI_IFR_FLAG_CREATED);\r
\r
  Status          = AddOpCode (FormBuffer, &CheckBox);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
\r
EFI_STATUS\r
CreateNumeric (\r
  IN      UINT16              QuestionId,\r
  IN      UINT8               DataWidth,\r
  IN      CHAR16              *Prompt,\r
  IN      CHAR16              *Help,\r
  IN      UINT16              Minimum,\r
  IN      UINT16              Maximum,\r
  IN      UINT16              Step,\r
  IN      UINT16              Default,\r
  IN      UINT8               Flags,\r
  IN      UINT16              Key,\r
  IN OUT  VOID                *FormBuffer,\r
  IN OUT  VOID                *StringBuffer\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  Create a numeric\r
  \r
Arguments:\r
  \r
  QuestionId      - Question ID of the numeric\r
  \r
  DataWidth       - DataWidth of the numeric\r
  \r
  Prompt          - Prompt of the numeric\r
  \r
  Help            - Help of the numeric\r
  \r
  Minimum         - Minumun boundary of the numeric\r
  \r
  Maximum         - Maximum boundary of the numeric\r
  \r
  Step            - Step of the numeric\r
  \r
  Default         - Default value\r
  \r
  Flags           - Flags of the numeric\r
  \r
  Key             - Key of the numeric\r
  \r
  FormBuffer      - The form where this numeric adds to\r
  \r
  StringBuffer    - String buffer created for Prompt and Help.\r
  \r
Returns: \r
\r
  EFI_DEVICE_ERROR      - DataWidth > 2\r
  \r
  EFI_SUCCESS           - Numeric is successfully created\r
\r
--*/\r
{\r
  EFI_STATUS      Status;\r
  EFI_IFR_NUMERIC Numeric;\r
  CHAR16          CurrentLanguage[4];\r
  STRING_REF      StringToken;\r
\r
  //\r
  // We do not create op-code storage widths for numerics in excess of 16 bits for now\r
  //\r
  if (DataWidth > 2) {\r
    return EFI_DEVICE_ERROR;\r
  }\r
\r
  //\r
  // Obtain current language value\r
  //\r
  GetCurrentLanguage (CurrentLanguage);\r
\r
  //\r
  // Add first string, get first string's token\r
  //\r
  Status = AddString (StringBuffer, CurrentLanguage, Prompt, &StringToken);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  Numeric.Header.OpCode = EFI_IFR_NUMERIC_OP;\r
  Numeric.Header.Length = sizeof (EFI_IFR_NUMERIC);\r
  Numeric.QuestionId    = QuestionId;\r
  Numeric.Width         = DataWidth;\r
  Numeric.Prompt        = StringToken;\r
\r
  //\r
  // Add second string, get first string's token\r
  //\r
  Status = AddString (StringBuffer, CurrentLanguage, Help, &StringToken);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  Numeric.Help    = StringToken;\r
  Numeric.Minimum = Minimum;\r
  Numeric.Maximum = Maximum;\r
  Numeric.Step    = Step;\r
  Numeric.Default = Default;\r
  Numeric.Flags   = (UINT8) (Flags | EFI_IFR_FLAG_CREATED);\r
  Numeric.Key     = Key;\r
\r
  Status          = AddOpCode (FormBuffer, &Numeric);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
\r
EFI_STATUS\r
CreateString (\r
  IN      UINT16              QuestionId,\r
  IN      UINT8               DataWidth,\r
  IN      CHAR16              *Prompt,\r
  IN      CHAR16              *Help,\r
  IN      UINT8               MinSize,\r
  IN      UINT8               MaxSize,\r
  IN      UINT8               Flags,\r
  IN      UINT16              Key,\r
  IN OUT  VOID                *FormBuffer,\r
  IN OUT  VOID                *StringBuffer\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  Create a string\r
  \r
Arguments:\r
  \r
  QuestionId      - Question ID of the string\r
  \r
  DataWidth       - DataWidth of the string\r
  \r
  Prompt          - Prompt of the string\r
  \r
  Help            - Help of the string\r
  \r
  MinSize         - Min size boundary of the string\r
  \r
  MaxSize         - Max size boundary of the string\r
    \r
  Flags           - Flags of the string\r
  \r
  Key             - Key of the string\r
  \r
  FormBuffer      - The form where this string adds to\r
  \r
  StringBuffer    - String buffer created for Prompt and Help.\r
  \r
Returns: \r
\r
  EFI_SUCCESS     - String successfully created.\r
\r
--*/\r
{\r
  EFI_STATUS      Status;\r
  EFI_IFR_STRING  String;\r
  CHAR16          CurrentLanguage[4];\r
  STRING_REF      StringToken;\r
\r
  //\r
  // Obtain current language value\r
  //\r
  GetCurrentLanguage (CurrentLanguage);\r
\r
  //\r
  // Add first string, get first string's token\r
  //\r
  Status = AddString (StringBuffer, CurrentLanguage, Prompt, &StringToken);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  String.Header.OpCode  = EFI_IFR_STRING_OP;\r
  String.Header.Length  = sizeof (EFI_IFR_STRING);\r
  String.QuestionId     = QuestionId;\r
  String.Width          = DataWidth;\r
  String.Prompt         = StringToken;\r
\r
  //\r
  // Add second string, get first string's token\r
  //\r
  Status = AddString (StringBuffer, CurrentLanguage, Help, &StringToken);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  String.Help     = StringToken;\r
  String.MinSize  = MinSize;\r
  String.MaxSize  = MaxSize;\r
  String.Flags    = (UINT8) (Flags | EFI_IFR_FLAG_CREATED);\r
  String.Key      = Key;\r
\r
  Status          = AddOpCode (FormBuffer, &String);\r
\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r