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* (C) Copyright 2011 - 2012 Samsung Electronics
* EXT4 filesystem implementation in Uboot by
* Uma Shankar <>
* Manjunatha C Achar <>
* ext4ls and ext4load : based on ext2 ls load support in Uboot.
* (C) Copyright 2004
* esd gmbh <>
* Reinhard Arlt <>
* based on code from grub2 fs/ext2.c and fs/fshelp.c by
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
* ext4write : Based on generic ext4 protocol.
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#ifndef __EXT4_COMMON__
#define __EXT4_COMMON__
#include <ext_common.h>
#include <ext4fs.h>
#include <malloc.h>
#include <asm/errno.h>
#if defined(CONFIG_EXT4_WRITE)
#include "ext4_journal.h"
#include "crc16.h"
#define YES 1
#define NO 0
#define TRUE 1
#define FALSE 0
#define RECOVER 1
#define SCAN 0
#define S_IFLNK 0120000 /* symbolic link */
#define BLOCK_NO_ONE 1
#define SUPERBLOCK_SIZE 1024
#define F_FILE 1
static inline void *zalloc(size_t size)
void *p = memalign(ARCH_DMA_MINALIGN, size);
memset(p, 0, size);
return p;
int ext4fs_read_inode(struct ext2_data *data, int ino,
struct ext2_inode *inode);
int ext4fs_read_file(struct ext2fs_node *node, int pos,
unsigned int len, char *buf);
int ext4fs_find_file(const char *path, struct ext2fs_node *rootnode,
struct ext2fs_node **foundnode, int expecttype);
int ext4fs_iterate_dir(struct ext2fs_node *dir, char *name,
struct ext2fs_node **fnode, int *ftype,
char *outbuff, int outsize);
#if defined(CONFIG_EXT4_WRITE)
uint32_t ext4fs_div_roundup(uint32_t size, uint32_t n);
int ext4fs_checksum_update(unsigned int i);
int ext4fs_get_parent_inode_num(const char *dirname, char *dname, int flags);
void ext4fs_update_parent_dentry(char *filename, int *p_ino, int file_type);
long int ext4fs_get_new_blk_no(void);
int ext4fs_get_new_inode_no(void);
void ext4fs_reset_block_bmap(long int blockno, unsigned char *buffer,
int index);
int ext4fs_set_block_bmap(long int blockno, unsigned char *buffer, int index);
int ext4fs_set_inode_bmap(int inode_no, unsigned char *buffer, int index);
void ext4fs_reset_inode_bmap(int inode_no, unsigned char *buffer, int index);
int ext4fs_iget(int inode_no, struct ext2_inode *inode);
void ext4fs_allocate_blocks(struct ext2_inode *file_inode,
unsigned int total_remaining_blocks,
unsigned int *total_no_of_block);
void put_ext4(uint64_t off, void *buf, uint32_t size);