linux-imx

/*

 * Copyright (c) International Business Machines Corp., 2006

 * Copyright (c) Nokia Corporation, 2006, 2007

 *

 * 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_UBI_H__

#define __UBI_UBI_H__

​

#include <linux/types.h>

#include <linux/list.h>

#include <linux/rbtree.h>

#include <linux/sched.h>

#include <linux/wait.h>

#include <linux/mutex.h>

#include <linux/rwsem.h>

#include <linux/spinlock.h>

#include <linux/fs.h>

#include <linux/cdev.h>

#include <linux/device.h>

#include <linux/slab.h>

#include <linux/string.h>

#include <linux/vmalloc.h>

#include <linux/notifier.h>

#include <linux/mtd/mtd.h>

#include <linux/mtd/ubi.h>

#include <asm/pgtable.h>

​

#include "ubi-media.h"

​

/* Maximum number of supported UBI devices */

#define UBI_MAX_DEVICES 32

​

/* UBI name used for character devices, sysfs, etc */

#define UBI_NAME_STR "ubi"

​

struct ubi_device;

​

/* Normal UBI messages */

__printf(2, 3)

void ubi_msg(const struct ubi_device *ubi, const char *fmt, ...);

​

/* UBI warning messages */

__printf(2, 3)

void ubi_warn(const struct ubi_device *ubi, const char *fmt, ...);

​

/* UBI error messages */

__printf(2, 3)

void ubi_err(const struct ubi_device *ubi, const char *fmt, ...);

​

/* Background thread name pattern */

#define UBI_BGT_NAME_PATTERN "ubi_bgt%dd"

​

/*

 * This marker in the EBA table means that the LEB is um-mapped.

 * NOTE! It has to have the same value as %UBI_ALL.

 */

#define UBI_LEB_UNMAPPED -1

​

/*

 * In case of errors, UBI tries to repeat the operation several times before

 * returning error. The below constant defines how many times UBI re-tries.

 */

#define UBI_IO_RETRIES 3

​

/*

 * Length of the protection queue. The length is effectively equivalent to the

 * number of (global) erase cycles PEBs are protected from the wear-leveling

 * worker.

 */

#define UBI_PROT_QUEUE_LEN 10

​

/* The volume ID/LEB number/erase counter is unknown */

#define UBI_UNKNOWN -1

​

/*

 * The UBI debugfs directory name pattern and maximum name length (3 for "ubi"