From ae51f41d14f548d494ac41e0d21137c5a4c3f59c Mon Sep 17 00:00:00 2001 From: Iru Cai Date: Wed, 30 Oct 2019 14:21:52 +0800 Subject: import the U-Boot code and make it compile --- ext4_common.h | 91 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 ext4_common.h (limited to 'ext4_common.h') diff --git a/ext4_common.h b/ext4_common.h new file mode 100644 index 0000000..145b0da --- /dev/null +++ b/ext4_common.h @@ -0,0 +1,91 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * (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. + */ + +#ifndef __EXT4_COMMON__ +#define __EXT4_COMMON__ +#include +#include +#include +#include +#if defined(CONFIG_EXT4_WRITE) +#include "ext4_journal.h" +#include "crc16.h" +#endif + +#define YES 1 +#define NO 0 +#define RECOVER 1 +#define SCAN 0 + +#define S_IFLNK 0120000 /* symbolic link */ +#define BLOCK_NO_ONE 1 +#define SUPERBLOCK_START (2 * 512) +#define SUPERBLOCK_SIZE 1024 +#define F_FILE 1 + +#define ARCH_DMA_MINALIGN 64 /* should be ok for all architectures */ + +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, loff_t pos, loff_t len, + char *buf, loff_t *actread); +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); +uint16_t ext4fs_checksum_update(unsigned int i); +int ext4fs_get_parent_inode_num(const char *dirname, char *dname, int flags); +int ext4fs_update_parent_dentry(char *filename, int file_type); +uint32_t 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, const void *buf, uint32_t size); +struct ext2_block_group *ext4fs_get_group_descriptor + (const struct ext_filesystem *fs, uint32_t bg_idx); +uint64_t ext4fs_bg_get_block_id(const struct ext2_block_group *bg, + const struct ext_filesystem *fs); +uint64_t ext4fs_bg_get_inode_id(const struct ext2_block_group *bg, + const struct ext_filesystem *fs); +uint64_t ext4fs_bg_get_inode_table_id(const struct ext2_block_group *bg, + const struct ext_filesystem *fs); +uint64_t ext4fs_sb_get_free_blocks(const struct ext2_sblock *sb); +void ext4fs_sb_set_free_blocks(struct ext2_sblock *sb, uint64_t free_blocks); +uint32_t ext4fs_bg_get_free_blocks(const struct ext2_block_group *bg, + const struct ext_filesystem *fs); +#endif +#endif -- cgit v1.2.3