OpenWrt – Rev 4

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/*
 * Copyright (C) 2009-2013 Felix Fietkau <nbd@nbd.name>
 * Copyright (C) 2009-2013 Gabor Juhos <juhosg@openwrt.org>
 * Copyright (C) 2012 Jonas Gorski <jogo@openwrt.org>
 * Copyright (C) 2013 Hauke Mehrtens <hauke@hauke-m.de>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published
 * by the Free Software Foundation.
 *
 */

#ifndef _MTDSPLIT_H
#define _MTDSPLIT_H

#define KERNEL_PART_NAME        "kernel"
#define ROOTFS_PART_NAME        "rootfs"
#define UBI_PART_NAME           "ubi"

#define ROOTFS_SPLIT_NAME       "rootfs_data"

enum mtdsplit_part_type {
        MTDSPLIT_PART_TYPE_UNK = 0,
        MTDSPLIT_PART_TYPE_SQUASHFS,
        MTDSPLIT_PART_TYPE_JFFS2,
        MTDSPLIT_PART_TYPE_UBI,
};

#ifdef CONFIG_MTD_SPLIT
int mtd_get_squashfs_len(struct mtd_info *master,
                         size_t offset,
                         size_t *squashfs_len);

int mtd_check_rootfs_magic(struct mtd_info *mtd, size_t offset,
                           enum mtdsplit_part_type *type);

int mtd_find_rootfs_from(struct mtd_info *mtd,
                         size_t from,
                         size_t limit,
                         size_t *ret_offset,
                         enum mtdsplit_part_type *type);

#else
static inline int mtd_get_squashfs_len(struct mtd_info *master,
                                       size_t offset,
                                       size_t *squashfs_len)
{
        return -ENODEV;
}

static inline int mtd_check_rootfs_magic(struct mtd_info *mtd, size_t offset,
                                         enum mtdsplit_part_type *type)
{
        return -EINVAL;
}

static inline int mtd_find_rootfs_from(struct mtd_info *mtd,
                                       size_t from,
                                       size_t limit,
                                       size_t *ret_offset,
                                       enum mtdsplit_part_type *type)
{
        return -ENODEV;
}
#endif /* CONFIG_MTD_SPLIT */

#endif /* _MTDSPLIT_H */