1a1596438SUma Shankar /* 2a1596438SUma Shankar * (C) Copyright 2011 - 2012 Samsung Electronics 3a1596438SUma Shankar * EXT4 filesystem implementation in Uboot by 4a1596438SUma Shankar * Uma Shankar <uma.shankar@samsung.com> 5a1596438SUma Shankar * Manjunatha C Achar <a.manjunatha@samsung.com> 6a1596438SUma Shankar * 7a1596438SUma Shankar * ext4ls and ext4load : based on ext2 ls load support in Uboot. 8a1596438SUma Shankar * 9a1596438SUma Shankar * (C) Copyright 2004 10a1596438SUma Shankar * esd gmbh <www.esd-electronics.com> 11a1596438SUma Shankar * Reinhard Arlt <reinhard.arlt@esd-electronics.com> 12a1596438SUma Shankar * 13a1596438SUma Shankar * based on code from grub2 fs/ext2.c and fs/fshelp.c by 14a1596438SUma Shankar * GRUB -- GRand Unified Bootloader 15a1596438SUma Shankar * Copyright (C) 2003, 2004 Free Software Foundation, Inc. 16a1596438SUma Shankar * 17*ed34f34dSUma Shankar * ext4write : Based on generic ext4 protocol. 18*ed34f34dSUma Shankar * 19a1596438SUma Shankar * This program is free software; you can redistribute it and/or modify 20a1596438SUma Shankar * it under the terms of the GNU General Public License as published by 21a1596438SUma Shankar * the Free Software Foundation; either version 2 of the License, or 22a1596438SUma Shankar * (at your option) any later version. 23a1596438SUma Shankar * 24a1596438SUma Shankar * This program is distributed in the hope that it will be useful, 25a1596438SUma Shankar * but WITHOUT ANY WARRANTY; without even the implied warranty of 26a1596438SUma Shankar * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 27a1596438SUma Shankar * GNU General Public License for more details. 28a1596438SUma Shankar * 29a1596438SUma Shankar * You should have received a copy of the GNU General Public License 30a1596438SUma Shankar * along with this program; if not, write to the Free Software 31a1596438SUma Shankar * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 32a1596438SUma Shankar */ 33a1596438SUma Shankar 34a1596438SUma Shankar #ifndef __EXT4_COMMON__ 35a1596438SUma Shankar #define __EXT4_COMMON__ 36a1596438SUma Shankar #include <ext_common.h> 37a1596438SUma Shankar #include <ext4fs.h> 38a1596438SUma Shankar #include <malloc.h> 39a1596438SUma Shankar #include <asm/errno.h> 40*ed34f34dSUma Shankar #if defined(CONFIG_CMD_EXT4_WRITE) 41*ed34f34dSUma Shankar #include "ext4_journal.h" 42*ed34f34dSUma Shankar #include "crc16.h" 43*ed34f34dSUma Shankar #endif 44a1596438SUma Shankar 45a1596438SUma Shankar #define YES 1 46a1596438SUma Shankar #define NO 0 47a1596438SUma Shankar #define TRUE 1 48a1596438SUma Shankar #define FALSE 0 49a1596438SUma Shankar #define RECOVER 1 50a1596438SUma Shankar #define SCAN 0 51a1596438SUma Shankar 52a1596438SUma Shankar #define S_IFLNK 0120000 /* symbolic link */ 53a1596438SUma Shankar #define BLOCK_NO_ONE 1 54a1596438SUma Shankar #define SUPERBLOCK_SECTOR 2 55a1596438SUma Shankar #define SUPERBLOCK_SIZE 1024 56a1596438SUma Shankar #define F_FILE 1 57a1596438SUma Shankar 58a1596438SUma Shankar #define zalloc(size) calloc(1, size) 59a1596438SUma Shankar 60a1596438SUma Shankar extern unsigned long part_offset; 61a1596438SUma Shankar int ext4fs_read_inode(struct ext2_data *data, int ino, 62a1596438SUma Shankar struct ext2_inode *inode); 63a1596438SUma Shankar int ext4fs_read_file(struct ext2fs_node *node, int pos, 64a1596438SUma Shankar unsigned int len, char *buf); 65a1596438SUma Shankar int ext4fs_find_file(const char *path, struct ext2fs_node *rootnode, 66a1596438SUma Shankar struct ext2fs_node **foundnode, int expecttype); 67a1596438SUma Shankar int ext4fs_iterate_dir(struct ext2fs_node *dir, char *name, 68a1596438SUma Shankar struct ext2fs_node **fnode, int *ftype); 69*ed34f34dSUma Shankar 70*ed34f34dSUma Shankar #if defined(CONFIG_CMD_EXT4_WRITE) 71*ed34f34dSUma Shankar uint32_t ext4fs_div_roundup(uint32_t size, uint32_t n); 72*ed34f34dSUma Shankar int ext4fs_checksum_update(unsigned int i); 73*ed34f34dSUma Shankar int ext4fs_get_parent_inode_num(const char *dirname, char *dname, int flags); 74*ed34f34dSUma Shankar void ext4fs_update_parent_dentry(char *filename, int *p_ino, int file_type); 75*ed34f34dSUma Shankar long int ext4fs_get_new_blk_no(void); 76*ed34f34dSUma Shankar int ext4fs_get_new_inode_no(void); 77*ed34f34dSUma Shankar void ext4fs_reset_block_bmap(long int blockno, unsigned char *buffer, 78*ed34f34dSUma Shankar int index); 79*ed34f34dSUma Shankar int ext4fs_set_block_bmap(long int blockno, unsigned char *buffer, int index); 80*ed34f34dSUma Shankar int ext4fs_set_inode_bmap(int inode_no, unsigned char *buffer, int index); 81*ed34f34dSUma Shankar void ext4fs_reset_inode_bmap(int inode_no, unsigned char *buffer, int index); 82*ed34f34dSUma Shankar int ext4fs_iget(int inode_no, struct ext2_inode *inode); 83*ed34f34dSUma Shankar void ext4fs_allocate_blocks(struct ext2_inode *file_inode, 84*ed34f34dSUma Shankar unsigned int total_remaining_blocks, 85*ed34f34dSUma Shankar unsigned int *total_no_of_block); 86*ed34f34dSUma Shankar void put_ext4(uint64_t off, void *buf, uint32_t size); 87*ed34f34dSUma Shankar #endif 88a1596438SUma Shankar #endif 89