/* * (C) Copyright 2011 - 2012 Samsung Electronics * EXT4 filesystem implementation in Uboot by * Uma Shankar <uma.shankar@samsung.com> * Manjunatha C Achar <a.manjunatha@samsung.com> * * ext4ls and ext4load : based on ext2 ls load support in Uboot. * * (C) Copyright 2004 * esd gmbh <www.esd-electronics.com> * Reinhard Arlt <reinhard.arlt@esd-electronics.com> * * 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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 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" #endif #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_SECTOR 2 #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); #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); #endif #endif