Line data    Source code

       1           0 : /*
       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           1 : struct ext2_cfg {
      27           0 :         uint32_t block_size;
      28           0 :         uint32_t fs_size; /* Number of blocks that we want to take. */
      29           0 :         uint32_t bytes_per_inode;
      30           0 :         uint8_t uuid[16];
      31           0 :         uint8_t volume_name[17]; /* If first byte is 0 then name ext2" is given. */
      32           0 :         bool set_uuid;
      33             : };
      34             : 
      35           0 : #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_ */