1 /* 2 * Copyright (c) 2023 Antmicro <www.antmicro.com> 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #ifndef ZEPHYR_INCLUDE_FS_EXT2_H_ 8 #define ZEPHYR_INCLUDE_FS_EXT2_H_ 9 10 #include <stdint.h> 11 12 /** @brief Configuration used to format ext2 file system. 13 * 14 * If a field is set to 0 then default value is used. 15 * (In volume name the first cell of an array must be 0 to use default value.) 16 * 17 * @param block_size Requested size of block. 18 * @param fs_size Requested size of file system. If 0 then whole available memory is used. 19 * @param bytes_per_inode Requested memory for one inode. It is used to calculate number of inodes 20 * in created file system. 21 * @param uuid UUID for created file system. Used when set_uuid is true. 22 * @param volume_name Name for created file system. 23 * @param set_uuid If true then UUID from that structure is used in created file system. 24 * If false then UUID (ver4) is generated. 25 */ 26 struct ext2_cfg { 27 uint32_t block_size; 28 uint32_t fs_size; /* Number of blocks that we want to take. */ 29 uint32_t bytes_per_inode; 30 uint8_t uuid[16]; 31 uint8_t volume_name[17]; /* If first byte is 0 then name ext2" is given. */ 32 bool set_uuid; 33 }; 34 35 #define FS_EXT2_DECLARE_DEFAULT_CONFIG(name) \ 36 static struct ext2_cfg name = { \ 37 .block_size = 1024, \ 38 .fs_size = 0x800000, \ 39 .bytes_per_inode = 4096, \ 40 .volume_name = {'e', 'x', 't', '2', '\0'}, \ 41 .set_uuid = false, \ 42 } 43 44 45 #endif /* ZEPHYR_INCLUDE_FS_EXT2_H_ */ 46
