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Diffstat (limited to 'EDK/Foundation/Library/Dxe/EfiIfrSupportLib/IfrLibrary.h')
| -rw-r--r-- | EDK/Foundation/Library/Dxe/EfiIfrSupportLib/IfrLibrary.h | 1299 |
1 files changed, 1299 insertions, 0 deletions
diff --git a/EDK/Foundation/Library/Dxe/EfiIfrSupportLib/IfrLibrary.h b/EDK/Foundation/Library/Dxe/EfiIfrSupportLib/IfrLibrary.h new file mode 100644 index 0000000..ebf8a1c --- /dev/null +++ b/EDK/Foundation/Library/Dxe/EfiIfrSupportLib/IfrLibrary.h @@ -0,0 +1,1299 @@ +/*++ + +Copyright (c) 2004 - 2005, Intel Corporation +All rights reserved. This program and the accompanying materials +are licensed and made available under the terms and conditions of the BSD License +which accompanies this distribution. The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +Module Name: + + IfrLibrary.h + +Abstract: + The file contain all library function for Ifr Operations. + +--*/ + +#ifndef _IFRLIBRARY_H +#define _IFRLIBRARY_H + +#include "Tiano.h" +#include "EfiDriverLib.h" + +#include EFI_PROTOCOL_DEFINITION (Hii) +#include EFI_GUID_DEFINITION (GlobalVariable) + +#define DEFAULT_FORM_BUFFER_SIZE 0xFFFF +#define DEFAULT_STRING_BUFFER_SIZE 0xFFFF + +#pragma pack(1) +typedef struct { + CHAR16 *OptionString; // Passed in string to generate a token for in a truly dynamic form creation + STRING_REF StringToken; // This is used when creating a single op-code without generating a StringToken (have one already) + UINT16 Value; + UINT8 Flags; + UINT16 Key; +} IFR_OPTION; +#pragma pack() + +EFI_STATUS +GetCurrentLanguage ( + OUT CHAR16 *Lang + ) +/*++ + +Routine Description: + + Determine what is the current language setting + +Arguments: + + Lang - Pointer of system language + +Returns: + + Status code + +--*/ +; + +EFI_STATUS +AddString ( + IN VOID *StringBuffer, + IN CHAR16 *Language, + IN CHAR16 *String, + IN OUT STRING_REF *StringToken + ) +/*++ + +Routine Description: + + Add a string to the incoming buffer and return the token and offset data + +Arguments: + + StringBuffer - The incoming buffer + + Language - Currrent language + + String - The string to be added + + StringToken - The index where the string placed + +Returns: + + EFI_OUT_OF_RESOURCES - No enough buffer to allocate + + EFI_SUCCESS - String successfully added to the incoming buffer + +--*/ +; + +EFI_STATUS +AddOpCode ( + IN VOID *FormBuffer, + IN OUT VOID *OpCodeData + ) +/*++ + +Routine Description: + + Add op-code data to the FormBuffer + +Arguments: + + FormBuffer - Form buffer to be inserted to + + OpCodeData - Op-code data to be inserted + +Returns: + + EFI_OUT_OF_RESOURCES - No enough buffer to allocate + + EFI_SUCCESS - Op-code data successfully inserted + +--*/ +; + +EFI_STATUS +CreateFormSet ( + IN CHAR16 *FormSetTitle, + IN EFI_GUID *Guid, + IN UINT8 Class, + IN UINT8 SubClass, + IN OUT VOID **FormBuffer, + IN OUT VOID **StringBuffer + ) +/*++ + +Routine Description: + + Create a formset + +Arguments: + + FormSetTitle - Title of formset + + Guid - Guid of formset + + Class - Class of formset + + SubClass - Sub class of formset + + FormBuffer - Pointer of the formset created + + StringBuffer - Pointer of FormSetTitile string created + +Returns: + + EFI_OUT_OF_RESOURCES - No enough buffer to allocate + + EFI_SUCCESS - Formset successfully created + +--*/ +; + +EFI_STATUS +CreateForm ( + IN CHAR16 *FormTitle, + IN UINT16 FormId, + IN OUT VOID *FormBuffer, + IN OUT VOID *StringBuffer + ) +/*++ + +Routine Description: + + Create a form + +Arguments: + + FormTitle - Title of the form + + FormId - Id of the form + + FormBuffer - Pointer of the form created + + StringBuffer - Pointer of FormTitil string created + +Returns: + + EFI_SUCCESS - Form successfully created + +--*/ +; + +EFI_STATUS +CreateSubTitle ( + IN CHAR16 *SubTitle, + IN OUT VOID *FormBuffer, + IN OUT VOID *StringBuffer + ) +/*++ + +Routine Description: + + Create a SubTitle + +Arguments: + + SubTitle - Sub title to be created + + FormBuffer - Where this subtitle to add to + + StringBuffer - String buffer created for subtitle + +Returns: + + EFI_SUCCESS - Subtitle successfully created + +--*/ +; + +EFI_STATUS +CreateText ( + IN CHAR16 *String, + IN CHAR16 *String2, + IN CHAR16 *String3, + IN UINT8 Flags, + IN UINT16 Key, + IN OUT VOID *FormBuffer, + IN OUT VOID *StringBuffer + ) +/*++ + +Routine Description: + + Create a line of text + +Arguments: + + String - First string of the text + + String2 - Second string of the text + + String3 - Help string of the text + + Flags - Flag of the text + + Key - Key of the text + + FormBuffer - The form where this text adds to + + StringBuffer - String buffer created for String, String2 and String3 + +Returns: + + EFI_SUCCESS - Text successfully created + +--*/ +; + +EFI_STATUS +CreateGoto ( + IN UINT16 FormId, + IN CHAR16 *Prompt, + IN OUT VOID *FormBuffer, + IN OUT VOID *StringBuffer + ) +/*++ + +Routine Description: + + Create a hyperlink + +Arguments: + + FormId - Form ID of the hyperlink + + Prompt - Prompt of the hyperlink + + FormBuffer - The form where this hyperlink adds to + + StringBuffer - String buffer created for Prompt + +Returns: + + EFI_SUCCESS - Hyperlink successfully created + +--*/ +; + +EFI_STATUS +CreateOneOf ( + IN UINT16 QuestionId, + IN UINT8 DataWidth, + IN CHAR16 *Prompt, + IN CHAR16 *Help, + IN IFR_OPTION *OptionsList, + IN UINTN OptionCount, + IN OUT VOID *FormBuffer, + IN OUT VOID *StringBuffer + ) +/*++ + +Routine Description: + + Create a one-of question with a set of options to choose from. The + OptionsList is a pointer to a null-terminated list of option descriptions. + +Arguments: + + QuestionId - Question ID of the one-of box + + DataWidth - DataWidth of the one-of box + + Prompt - Prompt of the one-of box + + Help - Help of the one-of box + + OptionsList - Each string in it is an option of the one-of box + + OptionCount - Option string count + + FormBuffer - The form where this one-of box adds to + + StringBuffer - String buffer created for Prompt, Help and Option strings + +Returns: + + EFI_DEVICE_ERROR - DataWidth > 2 + + EFI_SUCCESS - One-Of box successfully created. + +--*/ +; + +EFI_STATUS +CreateOrderedList ( + IN UINT16 QuestionId, + IN UINT8 MaxEntries, + IN CHAR16 *Prompt, + IN CHAR16 *Help, + IN IFR_OPTION *OptionsList, + IN UINTN OptionCount, + IN OUT VOID *FormBuffer, + IN OUT VOID *StringBuffer + ) +/*++ + +Routine Description: + + Create a one-of question with a set of options to choose from. The + OptionsList is a pointer to a null-terminated list of option descriptions. + +Arguments: + + QuestionId - Question ID of the ordered list + + MaxEntries - MaxEntries of the ordered list + + Prompt - Prompt of the ordered list + + Help - Help of the ordered list + + OptionsList - Each string in it is an option of the ordered list + + OptionCount - Option string count + + FormBuffer - The form where this ordered list adds to + + StringBuffer - String buffer created for Prompt, Help and Option strings + +Returns: + + EFI_SUCCESS - Ordered list successfully created. + +--*/ +; + +EFI_STATUS +CreateCheckBox ( + IN UINT16 QuestionId, + IN UINT8 DataWidth, + IN CHAR16 *Prompt, + IN CHAR16 *Help, + IN UINT8 Flags, + IN OUT VOID *FormBuffer, + IN OUT VOID *StringBuffer + ) +/*++ + +Routine Description: + + Create a checkbox + +Arguments: + + QuestionId - Question ID of the check box + + DataWidth - DataWidth of the check box + + Prompt - Prompt of the check box + + Help - Help of the check box + + Flags - Flags of the check box + + FormBuffer - The form where this check box adds to + + StringBuffer - String buffer created for Prompt and Help. + +Returns: + + EFI_DEVICE_ERROR - DataWidth > 1 + + EFI_SUCCESS - Check box successfully created + +--*/ +; + +EFI_STATUS +CreateNumeric ( + IN UINT16 QuestionId, + IN UINT8 DataWidth, + IN CHAR16 *Prompt, + IN CHAR16 *Help, + IN UINT16 Minimum, + IN UINT16 Maximum, + IN UINT16 Step, + IN UINT16 Default, + IN UINT8 Flags, + IN UINT16 Key, + IN OUT VOID *FormBuffer, + IN OUT VOID *StringBuffer + ) +/*++ + +Routine Description: + + Create a numeric + +Arguments: + + QuestionId - Question ID of the numeric + + DataWidth - DataWidth of the numeric + + Prompt - Prompt of the numeric + + Help - Help of the numeric + + Minimum - Minumun boundary of the numeric + + Maximum - Maximum boundary of the numeric + + Step - Step of the numeric + + Default - Default value + + Flags - Flags of the numeric + + Key - Key of the numeric + + FormBuffer - The form where this numeric adds to + + StringBuffer - String buffer created for Prompt and Help. + +Returns: + + EFI_DEVICE_ERROR - DataWidth > 2 + + EFI_SUCCESS - Numeric is successfully created + +--*/ +; + +EFI_STATUS +CreateString ( + IN UINT16 QuestionId, + IN UINT8 DataWidth, + IN CHAR16 *Prompt, + IN CHAR16 *Help, + IN UINT8 MinSize, + IN UINT8 MaxSize, + IN UINT8 Flags, + IN UINT16 Key, + IN OUT VOID *FormBuffer, + IN OUT VOID *StringBuffer + ) +/*++ + +Routine Description: + + Create a string + +Arguments: + + QuestionId - Question ID of the string + + DataWidth - DataWidth of the string + + Prompt - Prompt of the string + + Help - Help of the string + + MinSize - Min size boundary of the string + + MaxSize - Max size boundary of the string + + Flags - Flags of the string + + Key - Key of the string + + FormBuffer - The form where this string adds to + + StringBuffer - String buffer created for Prompt and Help. + +Returns: + + EFI_SUCCESS - String successfully created. + +--*/ +; + +EFI_STATUS +ExtractDataFromHiiHandle ( + IN EFI_HII_HANDLE HiiHandle, + IN OUT UINT16 *ImageLength, + OUT UINT8 *DefaultImage, + OUT EFI_GUID *Guid + ) +/*++ + +Routine Description: + + Extract information pertaining to the HiiHandle + +Arguments: + + HiiHandle - Hii handle + + ImageLength - For input, length of DefaultImage; + For output, length of actually required + + DefaultImage - Image buffer prepared by caller + + Guid - Guid information about the form + +Returns: + + EFI_OUT_OF_RESOURCES - No enough buffer to allocate + + EFI_BUFFER_TOO_SMALL - DefualtImage has no enough ImageLength + + EFI_SUCCESS - Successfully extract data from Hii database. + + +--*/ +; + +EFI_HII_HANDLE +FindHiiHandle ( + IN OUT EFI_HII_PROTOCOL **HiiProtocol, OPTIONAL + IN EFI_GUID *Guid + ) +/*++ + +Routine Description: + Finds HII handle for given pack GUID previously registered with the HII. + +Arguments: + HiiProtocol - pointer to pointer to HII protocol interface. + If NULL, the interface will be found but not returned. + If it points to NULL, the interface will be found and + written back to the pointer that is pointed to. + Guid - The GUID of the pack that registered with the HII. + +Returns: + Handle to the HII pack previously registered by the memory driver. + +--*/ +; + +EFI_STATUS +CreateSubTitleOpCode ( + IN STRING_REF StringToken, + IN OUT VOID *FormBuffer + ) +/*++ + +Routine Description: + + Create a SubTitle opcode independent of string creation + This is used primarily by users who need to create just one particular valid op-code and the string + data will be assumed to exist in the HiiDatabase already. (Useful when exporting op-codes at a label + location to pre-defined forms in HII) + +Arguments: + + StringToken - StringToken of the subtitle + + FormBuffer - Output of subtitle as a form + +Returns: + + EFI_SUCCESS - Subtitle created to be a form + +--*/ +; + +EFI_STATUS +CreateTextOpCode ( + IN STRING_REF StringToken, + IN STRING_REF StringTokenTwo, + IN STRING_REF StringTokenThree, + IN UINT8 Flags, + IN UINT16 Key, + IN OUT VOID *FormBuffer + ) +/*++ + +Routine Description: + + Create a Text opcode independent of string creation + This is used primarily by users who need to create just one particular valid op-code and the string + data will be assumed to exist in the HiiDatabase already. (Useful when exporting op-codes at a label + location to pre-defined forms in HII) + +Arguments: + + StringToken - First string token of the text + + StringTokenTwo - Second string token of the text + + StringTokenThree - Help string token of the text + + Flags - Flag of the text + + Key - Key of the text + + FormBuffer - Output of text as a form + +Returns: + + EFI_SUCCESS - Text created to be a form + +--*/ +; + +EFI_STATUS +CreateGotoOpCode ( + IN UINT16 FormId, + IN STRING_REF StringToken, + IN STRING_REF StringTokenTwo, + IN UINT8 Flags, + IN UINT16 Key, + IN OUT VOID *FormBuffer + ) +/*++ + +Routine Description: + + Create a hyperlink opcode independent of string creation + This is used primarily by users who need to create just one particular valid op-code and the string + data will be assumed to exist in the HiiDatabase already. (Useful when exporting op-codes at a label + location to pre-defined forms in HII) + +Arguments: + + FormId - Form ID of the hyperlink + + StringToken - Prompt string token of the hyperlink + + StringTokenTwo - Help string token of the hyperlink + + Flags - Flags of the hyperlink + + Key - Key of the hyperlink + + FormBuffer - Output of hyperlink as a form + +Returns: + + EFI_SUCCESS - Hyperlink created to be a form + +--*/ +; + +EFI_STATUS +CreateOneOfOpCode ( + IN UINT16 QuestionId, + IN UINT8 DataWidth, + IN STRING_REF PromptToken, + IN STRING_REF HelpToken, + IN IFR_OPTION *OptionsList, + IN UINTN OptionCount, + IN OUT VOID *FormBuffer + ) +/*++ + +Routine Description: + + Create a one-of opcode with a set of option op-codes to choose from independent of string creation. + This is used primarily by users who need to create just one particular valid op-code and the string + data will be assumed to exist in the HiiDatabase already. (Useful when exporting op-codes at a label + location to pre-defined forms in HII) + + OptionsList is a pointer to a null-terminated list of option descriptions. Ensure that OptionsList[x].StringToken + has been filled in since this routine will not generate StringToken values. + +Arguments: + + QuestionId - Question ID of the one-of box + + DataWidth - DataWidth of the one-of box + + PromptToken - Prompt string token of the one-of box + + HelpToken - Help string token of the one-of box + + OptionsList - Each string in it is an option of the one-of box + + OptionCount - Option string count + + FormBuffer - Output of One-Of box as a form + +Returns: + + EFI_SUCCESS - One-Of box created to be a form + + EFI_DEVICE_ERROR - DataWidth > 2 + +--*/ +; + +EFI_STATUS +CreateOrderedListOpCode ( + IN UINT16 QuestionId, + IN UINT8 MaxEntries, + IN STRING_REF PromptToken, + IN STRING_REF HelpToken, + IN IFR_OPTION *OptionsList, + IN UINTN OptionCount, + IN OUT VOID *FormBuffer + ) +/*++ + +Routine Description: + + Create a ordered list opcode with a set of option op-codes to choose from independent of string creation. + This is used primarily by users who need to create just one particular valid op-code and the string + data will be assumed to exist in the HiiDatabase already. (Useful when exporting op-codes at a label + location to pre-defined forms in HII) + + OptionsList is a pointer to a null-terminated list of option descriptions. Ensure that OptionsList[x].StringToken + has been filled in since this routine will not generate StringToken values. + +Arguments: + + QuestionId - Question ID of the ordered list + + MaxEntries - MaxEntries of the ordered list + + PromptToken - Prompt string token of the ordered list + + HelpToken - Help string token of the ordered list + + OptionsList - Each string in it is an option of the ordered list + + OptionCount - Option string count + + FormBuffer - Output of ordered list as a form + +Returns: + + EFI_SUCCESS - Ordered list created to be a form + +--*/ +; + +EFI_STATUS +CreateCheckBoxOpCode ( + IN UINT16 QuestionId, + IN UINT8 DataWidth, + IN STRING_REF PromptToken, + IN STRING_REF HelpToken, + IN UINT8 Flags, + IN UINT16 Key, + IN OUT VOID *FormBuffer + ) +/*++ + +Routine Description: + + Create a checkbox opcode independent of string creation + This is used primarily by users who need to create just one particular valid op-code and the string + data will be assumed to exist in the HiiDatabase already. (Useful when exporting op-codes at a label + location to pre-defined forms in HII) + +Arguments: + + QuestionId - Question ID of the check box + + DataWidth - DataWidth of the check box + + PromptToken - Prompt string token of the check box + + HelpToken - Help string token of the check box + + Flags - Flags of the check box + + Key - Key of the check box + + FormBuffer - Output of the check box as a form + +Returns: + + EFI_SUCCESS - Checkbox created to be a form + + EFI_DEVICE_ERROR - DataWidth > 1 + +--*/ +; + +EFI_STATUS +CreateNumericOpCode ( + IN UINT16 QuestionId, + IN UINT8 DataWidth, + IN STRING_REF PromptToken, + IN STRING_REF HelpToken, + IN UINT16 Minimum, + IN UINT16 Maximum, + IN UINT16 Step, + IN UINT16 Default, + IN UINT8 Flags, + IN UINT16 Key, + IN OUT VOID *FormBuffer + ) +/*++ + +Routine Description: + + Create a numeric opcode independent of string creation + This is used primarily by users who need to create just one particular valid op-code and the string + data will be assumed to exist in the HiiDatabase already. (Useful when exporting op-codes at a label + location to pre-defined forms in HII) + +Arguments: + + QuestionId - Question ID of the numeric + + DataWidth - DataWidth of the numeric + + PromptToken - Prompt string token of the numeric + + HelpToken - Help string token of the numeric + + Minimum - Minumun boundary of the numeric + + Maximum - Maximum boundary of the numeric + + Step - Step of the numeric + + Default - Default value of the numeric + + Flags - Flags of the numeric + + Key - Key of the numeric + + FormBuffer - Output of the numeric as a form + +Returns: + + EFI_SUCCESS - The numeric created to be a form. + + EFI_DEVICE_ERROR - DataWidth > 2 + +--*/ +; + +EFI_STATUS +CreateStringOpCode ( + IN UINT16 QuestionId, + IN UINT8 DataWidth, + IN STRING_REF PromptToken, + IN STRING_REF HelpToken, + IN UINT8 MinSize, + IN UINT8 MaxSize, + IN UINT8 Flags, + IN UINT16 Key, + IN OUT VOID *FormBuffer + ) +/*++ + +Routine Description: + + Create a numeric opcode independent of string creation + This is used primarily by users who need to create just one particular valid op-code and the string + data will be assumed to exist in the HiiDatabase already. (Useful when exporting op-codes at a label + location to pre-defined forms in HII) + +Arguments: + + QuestionId - Question ID of the string + + DataWidth - DataWidth of the string + + PromptToken - Prompt token of the string + + HelpToken - Help token of the string + + MinSize - Min size boundary of the string + + MaxSize - Max size boundary of the string + + Flags - Flags of the string + + Key - Key of the string + + FormBuffer - Output of the string as a form + +Returns: + + EFI_SUCCESS - String created to be a form. + +--*/ +; + +EFI_STATUS +ValidateDataFromHiiHandle ( + IN EFI_HII_HANDLE HiiHandle, + OUT BOOLEAN *Results + ) +/*++ + +Routine Description: + + Validate that the data associated with the HiiHandle in NVRAM is within + the reasonable parameters for that FormSet. Values for strings and passwords + are not verified due to their not having the equivalent of valid range settings. + +Arguments: + + HiiHandle - Handle of the HII database entry to query + + Results - If return Status is EFI_SUCCESS, Results provides valid data + TRUE = NVRAM Data is within parameters + FALSE = NVRAM Data is NOT within parameters + +Returns: + + EFI_OUT_OF_RESOURCES - No enough buffer to allocate + + EFI_SUCCESS - Data successfully validated +--*/ +; + +EFI_STATUS +CreateBannerOpCode ( + IN UINT16 Title, + IN UINT16 LineNumber, + IN UINT8 Alignment, + IN OUT VOID *FormBuffer + ) +/*++ + +Routine Description: + + Create a banner opcode. This is primarily used by the FrontPage implementation from BDS. + +Arguments: + + Title - Title of the banner + + LineNumber - LineNumber of the banner + + Alignment - Alignment of the banner + + FormBuffer - Output of banner as a form + +Returns: + + EFI_SUCCESS - Banner created to be a form. + +--*/ +; + +EFI_HII_PACKAGES * +PreparePackages ( + IN UINTN NumberOfPackages, + IN EFI_GUID *GuidId, + ... + ) +/*++ + +Routine Description: + + Assemble EFI_HII_PACKAGES according to the passed in packages. + +Arguments: + + NumberOfPackages - Number of packages. + GuidId - Package GUID. + +Returns: + + Pointer of EFI_HII_PACKAGES. + +--*/ +; + +VOID +EfiLibHiiVariablePackGetMap ( + IN EFI_HII_VARIABLE_PACK *Pack, + OUT CHAR16 **Name, OPTIONAL + OUT EFI_GUID **Guid, OPTIONAL + OUT UINT16 *Id, OPTIONAL + OUT VOID **Var, OPTIONAL + OUT UINTN *Size OPTIONAL + ) +/*++ + +Routine Description: + + Extracts a variable form a Pack. + +Arguments: + + Pack - List of variables + Name - Name of the variable/map + Guid - GUID of the variable/map + Var - Pointer to the variable/map + Size - Size of the variable/map in bytes + +Returns: + + VOID. + +--*/ +; + +UINTN +EfiLibHiiVariablePackListGetMapCnt ( + IN EFI_HII_VARIABLE_PACK_LIST *List + ) +/*++ + +Routine Description: + + Finds a count of the variables/maps in the List. + +Arguments: + + List - List of variables + +Returns: + + Number of Map in the variable pack list. + +--*/ +; + +typedef VOID (EFI_LIB_HII_VARIABLE_PACK_LIST_CALLBACK) ( + IN CHAR16 *Name, + IN EFI_GUID *Guid, + IN UINT16 Id, + IN VOID *Var, + IN UINTN Size + ) +/*++ + +Routine Description: + + type definition for the callback to be + used with EfiLibHiiVariablePackListForEachVar(). + +Arguments: + + Id - Variable/Map ID + Name - Name of the variable/map + Guid - GUID of the variable/map + Var - Pointer to the variable/map + Size - Size of the variable/map in bytes + +Returns: + + VOID + +--*/ +; + +VOID +EfiLibHiiVariablePackListForEachVar ( + IN EFI_HII_VARIABLE_PACK_LIST *List, + IN EFI_LIB_HII_VARIABLE_PACK_LIST_CALLBACK *Callback + ) +/*++ + +Routine Description: + + Will iterate all variable/maps as appearing + in List and for each, it will call the Callback. + +Arguments: + + List - List of variables + Callback - Routine to be called for each iterated variable. + +Returns: + + VOID + +--*/ +; + +EFI_STATUS +EfiLibHiiVariablePackListGetMapByIdx ( + IN UINTN Idx, + IN EFI_HII_VARIABLE_PACK_LIST *List, + OUT CHAR16 **Name, OPTIONAL + OUT EFI_GUID **Guid, OPTIONAL + OUT UINT16 *Id, OPTIONAL + OUT VOID **Var, + OUT UINTN *Size + ) +/*++ + +Routine Description: + + Finds a variable form List given + the order number as appears in the List. + +Arguments: + + Idx - The index of the variable/map to retrieve + List - List of variables + Name - Name of the variable/map + Guid - GUID of the variable/map + Var - Pointer to the variable/map + Size - Size of the variable/map in bytes + +Returns: + + EFI_SUCCESS - Variable is found, OUT parameters are valid + EFI_NOT_FOUND - Variable is not found, OUT parameters are not valid + +--*/ +; + +EFI_STATUS +EfiLibHiiVariablePackListGetMapById ( + IN UINT16 Id, + IN EFI_HII_VARIABLE_PACK_LIST *List, + OUT CHAR16 **Name, OPTIONAL + OUT EFI_GUID **Guid, OPTIONAL + OUT VOID **Var, + OUT UINTN *Size + ) +/*++ + +Routine Description: + + Finds a variable form List given the + order number as appears in the List. + +Arguments: + + Id - The ID of the variable/map to retrieve + List - List of variables + Name - Name of the variable/map + Guid - GUID of the variable/map + Var - Pointer to the variable/map + Size - Size of the variable/map in bytes + +Returns: + + EFI_SUCCESS - Variable is found, OUT parameters are valid + EFI_NOT_FOUND - Variable is not found, OUT parameters are not valid + +--*/ +; + +EFI_STATUS +EfiLibHiiVariablePackListGetMap ( + IN EFI_HII_VARIABLE_PACK_LIST *List, + IN CHAR16 *Name, + IN EFI_GUID *Guid, + OUT UINT16 *Id, + OUT VOID **Var, + OUT UINTN *Size + ) +/*++ + +Routine Description: + + Finds a variable form EFI_HII_VARIABLE_PACK_LIST given name and GUID. + +Arguments: + + List - List of variables + Name - Name of the variable/map to be found + Guid - GUID of the variable/map to be found + Var - Pointer to the variable/map found + Size - Size of the variable/map in bytes found + +Returns: + + EFI_SUCCESS - variable is found, OUT parameters are valid + EFI_NOT_FOUND - variable is not found, OUT parameters are not valid + +--*/ +; + +EFI_STATUS +EfiLibHiiVariableRetrieveFromNv ( + IN CHAR16 *Name, + IN EFI_GUID *Guid, + IN UINTN Size, + OUT VOID **Var + ) +/*++ + +Routine Description: + Finds out if a variable of specific Name/Guid/Size exists in NV. + If it does, it will retrieve it into the Var. + +Arguments: + Name, Guid, Size - Parameters of the variable to retrieve. Must match exactly. + Var - Variable will be retrieved into buffer pointed by this pointer. + If pointing to NULL, the buffer will be allocated. Caller is responsible for releasing the buffer. +Returns: + EFI_SUCCESS - The variable of exact Name/Guid/Size parameters was retrieved and written to Var. + EFI_NOT_FOUND - The variable of this Name/Guid was not found in the NV. + EFI_LOAD_ERROR - The variable in the NV was of different size, or NV API returned error. + +--*/ +; + +//// +//// Variable override support. +//// + +EFI_STATUS +EfiLibHiiVariableOverrideIfSuffix ( + IN CHAR16 *Suffix, + IN CHAR16 *Name, + IN EFI_GUID *Guid, + IN UINTN Size, + OUT VOID *Var + ) +/*++ + +Routine Description: + Overrrides the variable with NV data if found. + But it only does it if the Name ends with specified Suffix. + For example, if Suffix="MyOverride" and the Name="XyzSetupMyOverride", + the Suffix matches the end of Name, so the variable will be loaded from NV + provided the variable exists and the GUID and Size matches. + +Arguments: + Suffix - Suffix the Name should end with. + Name, Guid, Size - Parameters of the variable to retrieve. Must match exactly. + Var - Variable will be retrieved into this buffer. + Caller is responsible for providing storage of exactly Size size in bytes. +Returns: + EFI_SUCCESS - The variable was overriden with NV variable of same Name/Guid/Size. + EFI_INVALID_PARAMETER - The name of the variable does not end with <Suffix>. + EFI_NOT_FOUND - The variable of this Name/Guid was not found in the NV. + EFI_LOAD_ERROR - The variable in the NV was of different size, or NV API returned error. + +--*/ +; + +EFI_STATUS +EfiLibHiiVariableOverrideBySuffix ( + IN CHAR16 *Suffix, + IN CHAR16 *Name, + IN EFI_GUID *Guid, + IN UINTN Size, + OUT VOID *Var + ) +/*++ + +Routine Description: + Overrrides the variable with NV data if found. + But it only does it if the NV contains the same variable with Name is appended with Suffix. + For example, if Suffix="MyOverride" and the Name="XyzSetup", + the Suffix will be appended to the end of Name, and the variable with Name="XyzSetupMyOverride" + will be loaded from NV provided the variable exists and the GUID and Size matches. + +Arguments: + Suffix - Suffix the variable will be appended with. + Name, Guid, Size - Parameters of the variable to retrieve. Must match exactly. + Var - Variable will be retrieved into this buffer. + Caller is responsible for providing storage of exactly Size size in bytes. + +Returns: + EFI_SUCCESS - The variable was overriden with NV variable of same Name/Guid/Size. + EFI_NOT_FOUND - The variable of this Name/Guid was not found in the NV. + EFI_LOAD_ERROR - The variable in the NV was of different size, or NV API returned error. + +--*/ +; + +#endif |