fat.c

/*
	BootMii - a Free Software replacement for the Nintendo/BroadOn bootloader.
	Requires mini.

Copyright (C) 2009		Andre Heider "dhewg" <dhewg@wiibrew.org>

# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/

#include "fat.h"

static FATFS fatfs;

u32 fat_mount(void) {
	DSTATUS stat;

	f_mount(0, NULL);

	stat = disk_initialize(0);

	if (stat & STA_NODISK)
		return -1;

	if (stat & STA_NOINIT)
		return -2;

	return f_mount(0, &fatfs);
}

u32 fat_umount(void) {
	f_mount(0, NULL);

	return 0;
}

s32 fat_getfree(void) {
	FATFS *fatfs_p = &fatfs;
	DWORD free_clusters = 0;
	FRESULT res = f_getfree("/", &free_clusters, &fatfs_p);
	if (res != FR_OK) return -res;
	return free_clusters;
}