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