mirror of
https://github.com/ApacheThunder/NTR_Launcher.git
synced 2025-06-19 03:25:38 -04:00
a4e5a00409
* Stage2 launcher UI added. This is a heavily modified HBMenu with ability to launch carts! This menu can be used to boot a bootloader NDS file for flascharts that the direct cart launcher fails to boot. * New audio files added for new menu. * HBMenu UI loaded by default if booted with no cart inserted. * INI file folder now located in NTR_Launcher folder instead. A default ini file from NitroFS (if mount of nitrofs succeeds) will be copied to SD if one is not present. * Stage2 launchers are expected to be in NTR Launcehr folder though you can navigate to any folder you want in the UI so stage2 launchers aren't the only thing this can be used for. You can also use this as a means of booting homebrew off SD in NTR mode.
113 lines
4.3 KiB
C
113 lines
4.3 KiB
C
/*
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nitrofs.h - eris's wai ossum nitro filesystem device driver header
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Based on information found at http://frangoassado.org/ds/rom_spec.txt and from the #dsdev ppls
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Kallisti (K) 2008-01-26 All rights reversed.
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2008-05-19 v0.2 - New And Improved!! :DDD
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* fix'd the fseek SEEK_CUR issue (my fseek funct should not have returned a value :/)
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* also thx to wintermute's input realized:
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* if you dont give ndstool the -o wifilogo.bmp option it will run on emulators in gba mode
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* you then dont need the gba's LOADEROFFSET, so it was set to 0x000
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2008-05-21 v0.3 - newer and more improved
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* fixed some issues with ftell() (again was fseek's fault u_u;;)
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* fixed possible error in detecting sc.gba files when using dldi
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* readded support for .gba files in addition to .nds emu
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* added stat() support for completedness :)
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2008-05-30 v0.5.Turbo - major speed improvement
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* This version uses a single filehandle to access the .nds file when not in GBA mode
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improving the speed it takes to open a .nds file by around 106ms. This is great for
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situations requiring reading alot of seperate small files. However it does take a little
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bit longer when reading from multiple files simultainously
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(around 122ms over 10,327 0x100 byte reads between 2 files).
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2008-06-09
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* Fixed bug with SEEK_END where it wouldnt utilize the submitted position..
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(now can fseek(f,-128,SEEK_END) to read from end of file :D)
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2008-06-18 v0.6.Turbo - . and .. :D
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* Today i have added full "." and ".." support.
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dirnext() will return . and .. first, and all relevent operations will
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support . and .. in pathnames.
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2018-09-05 v0.9 - modernize devoptab (by RonnChyran)
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* Updated for libsysbase change in devkitARM r46 and above.
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*/
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#ifndef NITROFS_H
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#define NITROFS_H
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#include <sys/dir.h>
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#include <sys/iosupport.h>
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#include <stdio.h>
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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int nitroFSInit(const char *ndsfile);
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DIR_ITER *nitroFSDirOpen(struct _reent *r, DIR_ITER *dirState, const char *path);
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int nitroDirReset(struct _reent *r, DIR_ITER *dirState);
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int nitroFSDirNext(struct _reent *r, DIR_ITER *dirState, char *filename, struct stat *st);
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int nitroFSDirClose(struct _reent *r, DIR_ITER *dirState);
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int nitroFSOpen(struct _reent *r, void *fileStruct, const char *path, int flags, int mode);
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int nitroFSClose(struct _reent *r, void *fd);
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ssize_t nitroFSRead(struct _reent *r, void *fd, char *ptr, size_t len);
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off_t nitroFSSeek(struct _reent *r, void *fd, off_t pos, int dir);
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int nitroFSFstat(struct _reent *r, void *fd, struct stat *st);
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int nitroFSstat(struct _reent *r, const char *file, struct stat *st);
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int nitroFSChdir(struct _reent *r, const char *name);
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#define LOADERSTR "PASS" //look for this
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#define LOADERSTROFFSET 0xac
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#define LOADEROFFSET 0x0200
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#define FNTOFFSET 0x40
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#define FATOFFSET 0x48
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#define NITRONAMELENMAX 0x80 //max file name is 127 +1 for zero byte :D
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#define NITROMAXPATHLEN 0x100 //256 bytes enuff?
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#define NITROROOT 0xf000 //root entry_file_id
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#define NITRODIRMASK 0x0fff //remove leading 0xf
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#define NITROISDIR 0x80 //mask to indicate this name entry is a dir, other 7 bits = name length
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//Directory filename subtable entry structure
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struct ROM_FNTDir
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{
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u32 entry_start;
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u16 entry_file_id;
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u16 parent_id;
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};
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//Yo, dis table is fat (describes the structures
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struct ROM_FAT
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{
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u32 top; //start of file in rom image
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u32 bottom; //end of file in rom image
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};
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struct nitroFSStruct
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{
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off_t pos; //where in the file am i?
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off_t start; //where in the rom this file starts
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off_t end; //where in the rom this file ends
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};
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struct nitroDIRStruct
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{
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off_t pos; //where in the file am i?
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off_t namepos; //ptr to next name to lookup in list
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struct ROM_FAT romfat;
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u16 entry_id; //which entry this is (for files only) incremented with each new file in dir?
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u16 dir_id; //which directory entry this is.. used ofc for dirs only
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u16 cur_dir_id; //which directory entry we are using
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u16 parent_id; //who is the parent of the current directory (this can be used to easily ../ )
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u8 spc; //system path count.. used by dirnext, when 0=./ 1=../ >=2 actual dirs
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};
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#ifdef __cplusplus
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}
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#endif
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#endif |