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Diffstat (limited to 'drivers/mtd/ubi/scan.h')
| -rw-r--r-- | drivers/mtd/ubi/scan.h | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/drivers/mtd/ubi/scan.h b/drivers/mtd/ubi/scan.h deleted file mode 100644 index e795243..0000000 --- a/drivers/mtd/ubi/scan.h +++ /dev/null @@ -1,173 +0,0 @@ -/* - * Copyright (c) International Business Machines Corp., 2006 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See - * the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Author: Artem Bityutskiy (Битюцкий Артём) - */ - -#ifndef __UBI_SCAN_H__ -#define __UBI_SCAN_H__ - -/* - * When a field of the attaching information has this value - its real value is - * unknown. - */ -#define UBI_UNKNOWN (-1) - -/** - * struct ubi_ainf_peb - attach information about a physical eraseblock. - * @ec: erase counter (%UBI_UNKNOWN if it is unknown) - * @pnum: physical eraseblock number - * @lnum: logical eraseblock number - * @scrub: if this physical eraseblock needs scrubbing - * @copy_flag: this LEB is a copy (@copy_flag is set in VID header of this LEB) - * @sqnum: sequence number - * @u: unions RB-tree or @list links - * @u.rb: link in the per-volume RB-tree of &struct ubi_ainf_peb objects - * @u.list: link in one of the eraseblock lists - * - * One object of this type is allocated for each physical eraseblock when - * attaching an MTD device. - */ -struct ubi_ainf_peb { - int ec; - int pnum; - int lnum; - unsigned int scrub:1; - unsigned int copy_flag:1; - unsigned long long sqnum; - union { - struct rb_node rb; - struct list_head list; - } u; -}; - -/** - * struct ubi_ainf_volume - attaching information about a volume. - * @vol_id: volume ID - * @highest_lnum: highest logical eraseblock number in this volume - * @leb_count: number of logical eraseblocks in this volume - * @vol_type: volume type - * @used_ebs: number of used logical eraseblocks in this volume (only for - * static volumes) - * @last_data_size: amount of data in the last logical eraseblock of this - * volume (always equivalent to the usable logical eraseblock - * size in case of dynamic volumes) - * @data_pad: how many bytes at the end of logical eraseblocks of this volume - * are not used (due to volume alignment) - * @compat: compatibility flags of this volume - * @rb: link in the volume RB-tree - * @root: root of the RB-tree containing all the eraseblock belonging to this - * volume (&struct ubi_ainf_peb objects) - * - * One object of this type is allocated for each volume when attaching an MTD - * device. - */ -struct ubi_ainf_volume { - int vol_id; - int highest_lnum; - int leb_count; - int vol_type; - int used_ebs; - int last_data_size; - int data_pad; - int compat; - struct rb_node rb; - struct rb_root root; -}; - -/** - * struct ubi_attach_info - MTD device attaching information. - * @volumes: root of the volume RB-tree - * @corr: list of corrupted physical eraseblocks - * @free: list of free physical eraseblocks - * @erase: list of physical eraseblocks which have to be erased - * @alien: list of physical eraseblocks which should not be used by UBI (e.g., - * those belonging to "preserve"-compatible internal volumes) - * @corr_peb_count: count of PEBs in the @corr list - * @empty_peb_count: count of PEBs which are presumably empty (contain only - * 0xFF bytes) - * @alien_peb_count: count of PEBs in the @alien list - * @bad_peb_count: count of bad physical eraseblocks - * @maybe_bad_peb_count: count of bad physical eraseblocks which are not marked - * as bad yet, but which look like bad - * @vols_found: number of volumes found - * @highest_vol_id: highest volume ID - * @is_empty: flag indicating whether the MTD device is empty or not - * @min_ec: lowest erase counter value - * @max_ec: highest erase counter value - * @max_sqnum: highest sequence number value - * @mean_ec: mean erase counter value - * @ec_sum: a temporary variable used when calculating @mean_ec - * @ec_count: a temporary variable used when calculating @mean_ec - * @aeb_slab_cache: slab cache for &struct ubi_ainf_peb objects - * - * This data structure contains the result of attaching an MTD device and may - * be used by other UBI sub-systems to build final UBI data structures, further - * error-recovery and so on. - */ -struct ubi_attach_info { - struct rb_root volumes; - struct list_head corr; - struct list_head free; - struct list_head erase; - struct list_head alien; - int corr_peb_count; - int empty_peb_count; - int alien_peb_count; - int bad_peb_count; - int maybe_bad_peb_count; - int vols_found; - int highest_vol_id; - int is_empty; - int min_ec; - int max_ec; - unsigned long long max_sqnum; - int mean_ec; - uint64_t ec_sum; - int ec_count; - struct kmem_cache *aeb_slab_cache; -}; - -struct ubi_device; -struct ubi_vid_hdr; - -/* - * ubi_move_aeb_to_list - move a PEB from the volume tree to a list. - * - * @av: volume attaching information - * @aeb: attaching eraseblock information - * @list: the list to move to - */ -static inline void ubi_move_aeb_to_list(struct ubi_ainf_volume *av, - struct ubi_ainf_peb *aeb, - struct list_head *list) -{ - rb_erase(&aeb->u.rb, &av->root); - list_add_tail(&aeb->u.list, list); -} - -int ubi_add_to_av(struct ubi_device *ubi, struct ubi_attach_info *ai, int pnum, - int ec, const struct ubi_vid_hdr *vid_hdr, int bitflips); -struct ubi_ainf_volume *ubi_find_av(const struct ubi_attach_info *ai, - int vol_id); -void ubi_remove_av(struct ubi_attach_info *ai, struct ubi_ainf_volume *av); -struct ubi_ainf_peb *ubi_early_get_peb(struct ubi_device *ubi, - struct ubi_attach_info *ai); -int ubi_attach(struct ubi_device *ubi); -void ubi_destroy_ai(struct ubi_attach_info *ai); - -#endif /* !__UBI_SCAN_H__ */ |