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22#ifndef __EXT4_COMMON__
23#define __EXT4_COMMON__
24#include <ext_common.h>
25#include <ext4fs.h>
26#include <malloc.h>
27#include <asm/errno.h>
28#if defined(CONFIG_EXT4_WRITE)
29#include "ext4_journal.h"
30#include "crc16.h"
31#endif
32
33#define YES 1
34#define NO 0
35#define RECOVER 1
36#define SCAN 0
37
38#define S_IFLNK 0120000
39#define BLOCK_NO_ONE 1
40#define SUPERBLOCK_START (2 * 512)
41#define SUPERBLOCK_SIZE 1024
42#define F_FILE 1
43
44static inline void *zalloc(size_t size)
45{
46 void *p = memalign(ARCH_DMA_MINALIGN, size);
47 memset(p, 0, size);
48 return p;
49}
50
51int ext4fs_read_inode(struct ext2_data *data, int ino,
52 struct ext2_inode *inode);
53int ext4fs_read_file(struct ext2fs_node *node, int pos,
54 unsigned int len, char *buf);
55int ext4fs_find_file(const char *path, struct ext2fs_node *rootnode,
56 struct ext2fs_node **foundnode, int expecttype);
57int ext4fs_iterate_dir(struct ext2fs_node *dir, char *name,
58 struct ext2fs_node **fnode, int *ftype);
59
60#if defined(CONFIG_EXT4_WRITE)
61uint32_t ext4fs_div_roundup(uint32_t size, uint32_t n);
62int ext4fs_checksum_update(unsigned int i);
63int ext4fs_get_parent_inode_num(const char *dirname, char *dname, int flags);
64void ext4fs_update_parent_dentry(char *filename, int *p_ino, int file_type);
65long int ext4fs_get_new_blk_no(void);
66int ext4fs_get_new_inode_no(void);
67void ext4fs_reset_block_bmap(long int blockno, unsigned char *buffer,
68 int index);
69int ext4fs_set_block_bmap(long int blockno, unsigned char *buffer, int index);
70int ext4fs_set_inode_bmap(int inode_no, unsigned char *buffer, int index);
71void ext4fs_reset_inode_bmap(int inode_no, unsigned char *buffer, int index);
72int ext4fs_iget(int inode_no, struct ext2_inode *inode);
73void ext4fs_allocate_blocks(struct ext2_inode *file_inode,
74 unsigned int total_remaining_blocks,
75 unsigned int *total_no_of_block);
76void put_ext4(uint64_t off, void *buf, uint32_t size);
77#endif
78#endif
79