189 lines
4.8 KiB
C
189 lines
4.8 KiB
C
/*
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* BmLib.h
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*
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* Created on: 10 Apr 2020
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* Author: jief
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*/
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#ifndef LIBEG_BMLIB_H_
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#define LIBEG_BMLIB_H_
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extern "C" {
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#include <Protocol/DevicePath.h>
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#include <Guid/FileSystemVolumeLabelInfo.h>
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#include <Guid/FileInfo.h>
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#include <Guid/FileSystemInfo.h>
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}
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/**
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Find the first instance of this Protocol
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in the system and return it's interface.
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@param ProtocolGuid Provides the protocol to search for
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@param Interface On return, a pointer to the first interface
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that matches ProtocolGuid
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@retval EFI_SUCCESS A protocol instance matching ProtocolGuid was found
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@retval EFI_NOT_FOUND No protocol instances were found that match ProtocolGuid
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**/
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EFI_STATUS
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EfiLibLocateProtocol (
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const EFI_GUID& ProtocolGuid,
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OUT void **Interface
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);
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/**
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Function opens and returns a file handle to the root directory of a volume.
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@param DeviceHandle A handle for a device
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@return A valid file handle or NULL is returned
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**/
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EFI_FILE*
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EfiLibOpenRoot (
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IN EFI_HANDLE DeviceHandle
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);
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/**
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Function gets the file system information from an open file descriptor,
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and stores it in a buffer allocated from pool.
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@param FHand The file handle.
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@return A pointer to a buffer with file information.
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@retval NULL is returned if failed to get Volume Label Info.
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**/
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XStringW
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EfiLibFileSystemVolumeLabelInfo (
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const EFI_FILE* FHand
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);
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//Compare strings case insensitive
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// return 0 if strings are equal not accounting match case
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INTN
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StriCmp (
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IN CONST CHAR16 *FirstS,
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IN CONST CHAR16 *SecondS
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);
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// If Null-terminated strings are case insensitive equal or its sSize symbols are equal then true
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XBool
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AsciiStriNCmp(
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IN CONST CHAR8 *FirstS,
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IN CONST CHAR8 *SecondS,
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IN CONST UINTN sSize
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);
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// Case insensitive search of WhatString in WhereString
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XBool
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AsciiStrStriN (
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IN CONST CHAR8 *WhatString,
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IN CONST UINTN sWhatSize,
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IN CONST CHAR8 *WhereString,
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IN CONST UINTN sWhereSize
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);
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/**
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Function gets the file information from an open file descriptor, and stores it
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in a buffer allocated from pool.
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@param FHand File Handle.
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@return A pointer to a buffer with file information or NULL is returned
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**/
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EFI_FILE_INFO *
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EfiLibFileInfo (
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const EFI_FILE* FHand
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);
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EFI_FILE_SYSTEM_INFO *
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EfiLibFileSystemInfo (
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const EFI_FILE* FHand
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);
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/**
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Function is used to determine the number of device path instances
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that exist in a device path.
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@param DevicePath A pointer to a device path data structure.
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@return This function counts and returns the number of device path instances
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in DevicePath.
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**/
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UINTN
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EfiDevicePathInstanceCount (
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IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
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);
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/**
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Adjusts the size of a previously allocated buffer.
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@param OldPool - A pointer to the buffer whose size is being adjusted.
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@param OldSize - The size of the current buffer.
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@param NewSize - The size of the new buffer.
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@return The newly allocated buffer.
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@retval NULL Allocation failed.
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**/
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void *
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EfiReallocatePool (
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IN void *OldPool,
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IN UINTN OldSize,
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IN UINTN NewSize
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);
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/**
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Compare two EFI_TIME data.
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@param FirstTime - A pointer to the first EFI_TIME data.
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@param SecondTime - A pointer to the second EFI_TIME data.
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@retval true The FirstTime is not later than the SecondTime.
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@retval false The FirstTime is later than the SecondTime.
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**/
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XBool
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TimeCompare (
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IN EFI_TIME *FirstTime,
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IN EFI_TIME *SecondTime
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);
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/*
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Translate VT-UTF8 characters into one Unicode character.
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UTF8 Encoding Table
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Bits per Character | Unicode Character Range | Unicode Binary Encoding | UTF8 Binary Encoding
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0-7 | 0x0000 - 0x007F | 00000000 0xxxxxxx | 0xxxxxxx
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8-11 | 0x0080 - 0x07FF | 00000xxx xxxxxxxx | 110xxxxx 10xxxxxx
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12-16 | 0x0800 - 0xFFFF | xxxxxxxx xxxxxxxx | 1110xxxx 10xxxxxx 10xxxxxx
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$ U+0024 10 0100 00100100 24
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¢ U+00A2 1010 0010 11000010 10100010 C2 A2
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€ U+20AC 0010 0000 1010 1100 11100010 10000010 10101100 E2 82 AC
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𐍈 U+10348 1 0000 0011 0100 1000 11110000 10010000 10001101 10001000 F0 90 8D 88
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*/
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CHAR8* GetUnicodeChar(CHAR8 *s, CHAR16* UnicodeChar);
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#endif /* LIBEG_BMLIB_H_ */
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