fat12.c File Reference

#include "fat12.h"
#include "../drivers/ata_pio.h"
#include "../kklibc/kklibc.h"
#include "vfs.h"

Classes
struct	fat_node_t

Functions
static int	check_volume (void)
int	fat12_is_mounted (void)
static int	read_sector (u32 sector, void *buffer)
static int	write_sector (u32 sector, void *buffer)
int	fat12_read_boot_sector (fat12_boot_sector_t *boot)
void	fat12_cleanup (void)
void	fat12_init (void)
static int	short_name (const char *input, char out[11])
static int	valid_cluster (u32 c)
static u16	fat_get (u32 c)
static void	fat_set (u32 c, u16 value)
static int	sync_fat (void)
static void	free_chain (u16 c)
void	print_fat12_info (void)
static int	chain_length (u16 first, u32 *length)
static int	directory_sector (u16 directory, u32 index, u32 *sector)
static int	directory_entry (u16 directory, u32 index, fat12_dir_entry_t *entry, int store)
static int	directory_lookup (u16 directory, const char name[11], fat_node_t *node, u32 *vacant)
static int	resolve_node (const char *path, fat_node_t *node, u16 *parent, char leaf[11])
static int	reserve_chain (u32 count, u16 *first)
static int	zero_chain (u16 first)
static int	available_slot (u16 directory, const char name[11], u32 *slot)
static int	driver_stat (const char *path, vfs_stat_t *stat)
static int	driver_read (const char *path, u32 offset, void *buffer, u32 capacity)
static int	driver_replace (const char *path, const void *data, u32 size)
static int	driver_create (const char *path, int directory)
static void	entry_name (const fat12_dir_entry_t *entry, char name[13])
static int	driver_readdir (const char *path, u32 *cursor, vfs_dirent_t *output)
static int	driver_remove (const char *path, int directory)
static int	driver_rename (const char *source, const char *target)

Variables
static fat12_context_t	ctx
static fat12_boot_sector_t	boot_sector
static int	mounted
static const vfs_ops_t	fat_ops
ata_disk_info_t	ata_disks [2]

Function Documentation

available_slot()

static int available_slot ( u16  directory, const char  name[11], u32 *  slot  )

static

chain_length()

static int chain_length ( u16  first, u32 *  length  )

static

check_volume()

static int check_volume ( void  )

static

directory_entry()

static int directory_entry ( u16  directory, u32  index, fat12_dir_entry_t *  entry, int  store  )

static

directory_lookup()

static int directory_lookup ( u16  directory, const char  name[11], fat_node_t *  node, u32 *  vacant  )

static

directory_sector()

static int directory_sector ( u16  directory, u32  index, u32 *  sector  )

static

driver_create()

static int driver_create ( const char *  path, int  directory  )

static

driver_read()

static int driver_read ( const char *  path, u32  offset, void *  buffer, u32  capacity  )

static

driver_readdir()

static int driver_readdir ( const char *  path, u32 *  cursor, vfs_dirent_t *  output  )

static

driver_remove()

static int driver_remove ( const char *  path, int  directory  )

static

driver_rename()

static int driver_rename ( const char *  source, const char *  target  )

static

driver_replace()

static int driver_replace ( const char *  path, const void *  data, u32  size  )

static

driver_stat()

static int driver_stat ( const char *  path, vfs_stat_t *  stat  )

static

entry_name()

static void entry_name ( const fat12_dir_entry_t *  entry, char  name[13]  )

static

fat12_cleanup()

void fat12_cleanup

(

void

)

fat12_init()

void fat12_init

(

void

)

fat12_is_mounted()

int fat12_is_mounted

(

void

)

fat12_read_boot_sector()

int fat12_read_boot_sector

(

fat12_boot_sector_t *

boot

)

fat_get()

static u16 fat_get ( u32  c )

static

fat_set()

static void fat_set ( u32  c, u16  value  )

static

free_chain()

static void free_chain ( u16  c )

static

print_fat12_info()

void print_fat12_info

(

void

)

read_sector()

static int read_sector ( u32  sector, void *  buffer  )

static

reserve_chain()

static int reserve_chain ( u32  count, u16 *  first  )

static

resolve_node()

static int resolve_node ( const char *  path, fat_node_t *  node, u16 *  parent, char  leaf[11]  )

static

short_name()

static int short_name ( const char *  input, char  out[11]  )

static

sync_fat()

static int sync_fat ( void  )

static

valid_cluster()

static int valid_cluster ( u32  c )

static

write_sector()

static int write_sector ( u32  sector, void *  buffer  )

static

zero_chain()

static int zero_chain ( u16  first )

static

Variable Documentation

ata_disks

ata_disk_info_t ata_disks[2]

extern

boot_sector

fat12_boot_sector_t boot_sector

static

ctx

fat12_context_t ctx

static

fat_ops

static const vfs_ops_t fat_ops

static

Initial value:

= { .stat = driver_stat,
                                   .read = driver_read,
                                   .replace = driver_replace,
                                   .create = driver_create,
                                   .remove = driver_remove,
                                   .rename = driver_rename,
                                   .readdir = driver_readdir }

mounted

int mounted

static