diff options
author | Yang Zhang <yang.z.zhang@intel.com> | 2015-08-28 09:58:54 +0800 |
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committer | Yang Zhang <yang.z.zhang@intel.com> | 2015-09-01 12:44:00 +0800 |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/u-boot/include/ext_common.h | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/u-boot/include/ext_common.h')
-rw-r--r-- | qemu/roms/u-boot/include/ext_common.h | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/include/ext_common.h b/qemu/roms/u-boot/include/ext_common.h new file mode 100644 index 000000000..6cddf166d --- /dev/null +++ b/qemu/roms/u-boot/include/ext_common.h @@ -0,0 +1,180 @@ +/* + * (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> + * + * Data structures and headers for ext4 support have been taken from + * 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. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __EXT_COMMON__ +#define __EXT_COMMON__ +#include <command.h> +#define SECTOR_SIZE 0x200 + +/* Magic value used to identify an ext2 filesystem. */ +#define EXT2_MAGIC 0xEF53 +/* Amount of indirect blocks in an inode. */ +#define INDIRECT_BLOCKS 12 +/* Maximum lenght of a pathname. */ +#define EXT2_PATH_MAX 4096 +/* Maximum nesting of symlinks, used to prevent a loop. */ +#define EXT2_MAX_SYMLINKCNT 8 + +/* Filetype used in directory entry. */ +#define FILETYPE_UNKNOWN 0 +#define FILETYPE_REG 1 +#define FILETYPE_DIRECTORY 2 +#define FILETYPE_SYMLINK 7 + +/* Filetype information as used in inodes. */ +#define FILETYPE_INO_MASK 0170000 +#define FILETYPE_INO_REG 0100000 +#define FILETYPE_INO_DIRECTORY 0040000 +#define FILETYPE_INO_SYMLINK 0120000 +#define EXT2_ROOT_INO 2 /* Root inode */ + +/* The size of an ext2 block in bytes. */ +#define EXT2_BLOCK_SIZE(data) (1 << LOG2_BLOCK_SIZE(data)) + +/* Log2 size of ext2 block in bytes. */ +#define LOG2_BLOCK_SIZE(data) (__le32_to_cpu \ + (data->sblock.log2_block_size) \ + + EXT2_MIN_BLOCK_LOG_SIZE) +#define INODE_SIZE_FILESYSTEM(data) (__le32_to_cpu \ + (data->sblock.inode_size)) + +#define EXT2_FT_DIR 2 +#define SUCCESS 1 + +/* Macro-instructions used to manage several block sizes */ +#define EXT2_MIN_BLOCK_LOG_SIZE 10 /* 1024 */ +#define EXT2_MAX_BLOCK_LOG_SIZE 16 /* 65536 */ +#define EXT2_MIN_BLOCK_SIZE (1 << EXT2_MIN_BLOCK_LOG_SIZE) +#define EXT2_MAX_BLOCK_SIZE (1 << EXT2_MAX_BLOCK_LOG_SIZE) + +/* The ext2 superblock. */ +struct ext2_sblock { + uint32_t total_inodes; + uint32_t total_blocks; + uint32_t reserved_blocks; + uint32_t free_blocks; + uint32_t free_inodes; + uint32_t first_data_block; + uint32_t log2_block_size; + uint32_t log2_fragment_size; + uint32_t blocks_per_group; + uint32_t fragments_per_group; + uint32_t inodes_per_group; + uint32_t mtime; + uint32_t utime; + uint16_t mnt_count; + uint16_t max_mnt_count; + uint16_t magic; + uint16_t fs_state; + uint16_t error_handling; + uint16_t minor_revision_level; + uint32_t lastcheck; + uint32_t checkinterval; + uint32_t creator_os; + uint32_t revision_level; + uint16_t uid_reserved; + uint16_t gid_reserved; + uint32_t first_inode; + uint16_t inode_size; + uint16_t block_group_number; + uint32_t feature_compatibility; + uint32_t feature_incompat; + uint32_t feature_ro_compat; + uint32_t unique_id[4]; + char volume_name[16]; + char last_mounted_on[64]; + uint32_t compression_info; +}; + +struct ext2_block_group { + __u32 block_id; /* Blocks bitmap block */ + __u32 inode_id; /* Inodes bitmap block */ + __u32 inode_table_id; /* Inodes table block */ + __u16 free_blocks; /* Free blocks count */ + __u16 free_inodes; /* Free inodes count */ + __u16 used_dir_cnt; /* Directories count */ + __u16 bg_flags; + __u32 bg_reserved[2]; + __u16 bg_itable_unused; /* Unused inodes count */ + __u16 bg_checksum; /* crc16(s_uuid+grouo_num+group_desc)*/ +}; + +/* The ext2 inode. */ +struct ext2_inode { + uint16_t mode; + uint16_t uid; + uint32_t size; + uint32_t atime; + uint32_t ctime; + uint32_t mtime; + uint32_t dtime; + uint16_t gid; + uint16_t nlinks; + uint32_t blockcnt; /* Blocks of 512 bytes!! */ + uint32_t flags; + uint32_t osd1; + union { + struct datablocks { + uint32_t dir_blocks[INDIRECT_BLOCKS]; + uint32_t indir_block; + uint32_t double_indir_block; + uint32_t triple_indir_block; + } blocks; + char symlink[60]; + } b; + uint32_t version; + uint32_t acl; + uint32_t dir_acl; + uint32_t fragment_addr; + uint32_t osd2[3]; +}; + +/* The header of an ext2 directory entry. */ +struct ext2_dirent { + uint32_t inode; + uint16_t direntlen; + uint8_t namelen; + uint8_t filetype; +}; + +struct ext2fs_node { + struct ext2_data *data; + struct ext2_inode inode; + int ino; + int inode_read; +}; + +/* Information about a "mounted" ext2 filesystem. */ +struct ext2_data { + struct ext2_sblock sblock; + struct ext2_inode *inode; + struct ext2fs_node diropen; +}; + +extern lbaint_t part_offset; + +int do_ext2ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); +int do_ext2load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); +int do_ext4_load(cmd_tbl_t *cmdtp, int flag, int argc, + char *const argv[]); +int do_ext4_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]); +int do_ext4_write(cmd_tbl_t *cmdtp, int flag, int argc, + char *const argv[]); +#endif |