int main(int argc, char *argv[])
{
struct block_device *bldev;
FatVol vol;
FatFile file;
char *rootpath = argc > 2 ? argv[2] : "/";
bldev = block_device_file_new(argc > 1 ? argv[1] : "fat32.img", "r+");
assert(bldev != NULL);
assert(fat_vol_init(bldev, &vol) == 0);
fprintf(stderr, "Fat type is FAT%d\n", vol.type);
fat_mkdir(&vol, "Directory1");
fat_mkdir(&vol, "Directory2");
fat_mkdir(&vol, "Directory3");
assert(fat_chdir(&vol, "Directory1") == 0);
fat_mkdir(&vol, "Directory1");
fat_mkdir(&vol, "Directory2");
fat_mkdir(&vol, "Directory3");
if(fat_create(&vol, "Message file with a long name.txt", O_WRONLY, &file) == 0) {
for(int i = 0; i < 100; i++) {
char message[80];
sprintf(message, "Here is a message %d\n", i);
assert(fat_write(&file, message, strlen(message)) == (int)strlen(message));
}
}
assert(fat_chdir(&vol, "..") == 0);
assert(fat_open(&vol, ".", O_RDONLY, &file) == 0);
print_tree(&vol, &file, rootpath[0] == '/' ? rootpath + 1 : rootpath);
block_device_file_destroy(bldev);
}
int main(void)
{
struct mmc_port spi2;
struct block_mbr_partition part;
struct fat_vol_handle vol;
struct fat_file_handle file;
stm32_setup();
mmc_init(SPI2, GPIOA, GPIO3, &spi2);
mbr_partition_init(&part, (struct block_device *)&spi2, 0);
assert(fat_vol_init((struct block_device *)&part, &vol) == 0);
printf("Fat type is FAT%d\n", vol.type);
time_counter = 0;
char dirname[20];
char filename[20];
char buffer[2000];
for(int i = 0; i < 100; i++) {
sprintf(dirname, "Dir%d", i);
fat_mkdir(&vol, dirname);
assert(fat_chdir(&vol, dirname) == 0);
for(int j = 0; j < 100; j++) {
sprintf(filename, "File%d", j);
assert(fat_create(&vol, filename, O_WRONLY, &file) == 0);
assert(fat_write(&file, buffer, sizeof(buffer)) == sizeof(buffer));
}
assert(fat_chdir(&vol, "..") == 0);
}
asm("bkpt");
assert(fat_open(&vol, ".", 0, &file) == 0);
print_tree(&vol, &file, 0);
while (1) {
}
return 0;
}
int __fopen (const char *fname, int openmode) {
/* Low level file open function. */
U32 i,fid;
int handle;
IOB *fcb;
START_LOCK (int);
/* Find unused _iob[] structure. */
if ((handle = fs_find_iob ()) == EOF) {
/* Cannot find any unused _iob[] structure */
RETURN (-1);
}
fcb = &_iob[handle];
fcb->drive = fs_get_drive (fname);
if (fcb->drive != DRV_NONE) {
/* Skip drive letter 'X:' */
fname += 2;
}
else {
fcb->drive = _DEF_DRIVE;
}
if (openmode & OPEN_PLUS) {
/* File mode "rw" is currently not supported. */
goto err;
}
fcb->flags = (openmode & (OPEN_W | OPEN_A)) ? _IOWRT : _IOREAD;
if (openmode & OPEN_A) {
fcb->flags |= _IOAPPEND;
}
if (fcb->drive == DRV_MCARD) {
/* Open a file on Flash Memory Card. */
fid = (fat_find_file (fname, fcb) == __TRUE) ? 0 : 1;
}
else {
/* Open a file on Embedded Flash/RAM device. */
if (fs_set_params (fcb) == __FALSE) {
goto err;
}
fcb->_fidx = 0;
fid = fs_Find_File (fname, fcb);
}
if (fid == 0) {
/* File with a given 'fname' has been found */
for (i = 0; i < _NFILE; i++) {
if (i == handle) {
/* Skip own file handle. */
continue;
}
if (!(_iob[i].flags & (_IOREAD|_IOWRT))) {
/* File closed. */
continue;
}
if (_iob[i].drive != fcb->drive) {
/* File opened on different drives. */
continue;
}
if (_iob[i].fileID != fcb->fileID) {
/* Different file IDs. */
continue;
}
if ((_iob[i].drive == DRV_MCARD) &&
(_iob[i]._currDatClus != fcb->_currDatClus)) {
/* Different starting clusters for SD card. */
continue;
}
/* This file is opened. */
if ((_iob[i].flags & _IOWRT) || (fcb->flags & _IOWRT)) {
/* Only multiple fopen for read is allowed. */
goto err;
}
}
if (fcb->flags & _IOAPPEND) {
/* Append mode, done here, block appended by _setfpos(). */
fcb->fsize = __getfsize (fcb, __TRUE);
RETURN (handle);
}
if (fcb->drive == DRV_MCARD) {
/* Open a file on Flash Memory Card. */
if (fcb->flags & _IOWRT) {
fat_delete (fname, fcb);
goto mcard;
}
}
else {
/* Open a file on embedded Flash/RAM Device. */
if (fcb->flags & _IOWRT) {
_fdelete (fcb);
goto fdev;
}
/* Open also 0-size file for reading. */
fcb->_ftop = fcb->_fbot;
}
RETURN (handle);
}
/* File not found */
if (fcb->flags & _IOREAD) {
err: fcb->flags = 0;
RETURN (-1);
}
if (fcb->drive == DRV_MCARD) {
mcard:if (fat_create (fname, fcb) == __FALSE) {
goto err;
}
}
else {
/* The max. 'fid' found in previous 'fs_Find_File' is here. */
fcb->fileID = fs_get_freeID (fid, fcb);
fdev: if (_fcreate (fname, fcb) != 0) {
goto err;
}
}
RETURN (handle);
END_LOCK;
}
fat_dir_t* df_new_file(){
return fat_create(df_mk_name());
}
