void FAT32_WriteDirectoryTableEntry(FS_File *file, uint8_t *data) {
uint8_t i=0;
// Move data to beginning of the file's directory entry
data += file->dirTableBlockOffset;
for (i=0;i<8;i++) {
if (file->name[i] == '\0') {
break;
} else {
data[i] = toupper(file->name[i]);
}
}
for (;i<8;i++) {
data[i] = ' ';
}
for (i=0;i<3;i++) {
if (file->ext[i] == '\0') {
break;
} else {
data[i+8] = toupper(file->ext[i]);
}
}
for (;i<3;i++) {
data[i+8] = ' ';
}
for (i=0x0b;i<0x20;i++) {
data[i] = 0x00;
}
Int32ToFATSplitData(data+0x14, data+0x1a, file->startCluster);
}
/**
* Initializes FAT data for a new file.
* This fills in the first FAT block and updates the directory table entry.
* No data is committed not is data moved to the FS buffer - that must be done separately.
*
* @pre The file is new (just created).
*
* @param file File to initialize.
* @return Status.
* @retval 0 Success.
* @retval -1 Failure.
*/
int8_t FAT32_InitializeFileFAT(FAT32FileOpt *file) {
// Fill the first FAT block
FAT32_AllocateFATBlock(file);
// Use the newly allocated FAT block
FAT32_SwitchNextBlock(file);
// Fill out file parameters using allocated data
file->startCluster = file->currentCluster;
Int32ToFATSplitData(file->directoryTableBlockData + file->directoryTableBlockOffset + 0x14,
file->directoryTableBlockData + file->directoryTableBlockOffset + 0x1a,
file->startCluster);
FAT32_UpdateDirectoryTableEntry(file);
DBG_DATA_printf("File initialized (cluster=0x%08lx, block=0x%08lx, size=%lu)", file->currentCluster, file->currentLBA, file->size);
}
