| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2009-2013 Felix Fietkau <nbd@nbd.name> |
| 3 | * Copyright (C) 2009-2013 Gabor Juhos <juhosg@openwrt.org> |
| 4 | * Copyright (C) 2012 Jonas Gorski <jogo@openwrt.org> |
| 5 | * Copyright (C) 2013 Hauke Mehrtens <hauke@hauke-m.de> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify it |
| 8 | * under the terms of the GNU General Public License version 2 as published |
| 9 | * by the Free Software Foundation. |
| 10 | * |
| 11 | */ |
| 12 | |
| 13 | #ifndef _MTDSPLIT_H |
| 14 | #define _MTDSPLIT_H |
| 15 | |
| 16 | #define KERNEL_PART_NAME "kernel" |
| 17 | #define ROOTFS_PART_NAME "rootfs" |
| 18 | #define UBI_PART_NAME "ubi" |
| 19 | |
| 20 | #define ROOTFS_SPLIT_NAME "rootfs_data" |
| 21 | |
| 22 | enum mtdsplit_part_type { |
| 23 | MTDSPLIT_PART_TYPE_UNK = 0, |
| 24 | MTDSPLIT_PART_TYPE_SQUASHFS, |
| 25 | MTDSPLIT_PART_TYPE_JFFS2, |
| 26 | MTDSPLIT_PART_TYPE_UBI, |
| 27 | }; |
| 28 | |
| 29 | #ifdef CONFIG_MTD_SPLIT |
| 30 | int mtd_get_squashfs_len(struct mtd_info *master, |
| 31 | size_t offset, |
| 32 | size_t *squashfs_len); |
| 33 | |
| 34 | int mtd_check_rootfs_magic(struct mtd_info *mtd, size_t offset, |
| 35 | enum mtdsplit_part_type *type); |
| 36 | |
| 37 | int mtd_find_rootfs_from(struct mtd_info *mtd, |
| 38 | size_t from, |
| 39 | size_t limit, |
| 40 | size_t *ret_offset, |
| 41 | enum mtdsplit_part_type *type); |
| 42 | |
| 43 | #else |
| 44 | static inline int mtd_get_squashfs_len(struct mtd_info *master, |
| 45 | size_t offset, |
| 46 | size_t *squashfs_len) |
| 47 | { |
| 48 | return -ENODEV; |
| 49 | } |
| 50 | |
| 51 | static inline int mtd_check_rootfs_magic(struct mtd_info *mtd, size_t offset, |
| 52 | enum mtdsplit_part_type *type) |
| 53 | { |
| 54 | return -EINVAL; |
| 55 | } |
| 56 | |
| 57 | static inline int mtd_find_rootfs_from(struct mtd_info *mtd, |
| 58 | size_t from, |
| 59 | size_t limit, |
| 60 | size_t *ret_offset, |
| 61 | enum mtdsplit_part_type *type) |
| 62 | { |
| 63 | return -ENODEV; |
| 64 | } |
| 65 | #endif /* CONFIG_MTD_SPLIT */ |
| 66 | |
| 67 | #endif /* _MTDSPLIT_H */ |