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-/*
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Author: Artem B. Bityutskiy
- *
- * UBI (Unsorted Block Images) library.
- */
-
-#ifndef __LIBUBI_H__
-#define __LIBUBI_H__
-
-#include <ctype.h>
-#include <stdint.h>
-#include <mtd/ubi-user.h>
-#include <mtd/ubi-header.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* UBI version libubi is made for */
-#define LIBUBI_UBI_VERSION 1
-
-/* UBI library descriptor */
-typedef void * libubi_t;
-
-/**
- * struct ubi_attach_request - MTD device attachement request.
- * @dev_num: number to assigne to the newly created UBI device
- * (%UBI_DEV_NUM_AUTO should be used to automatically assign the
- * number)
- * @mtd_num: MTD device number to attach
- * @vid_hdr_offset: VID header offset (%0 means default offset and this is what
- * most of the users want)
- */
-struct ubi_attach_request
-{
- int dev_num;
- int mtd_num;
- int vid_hdr_offset;
-};
-
-/**
- * struct ubi_mkvol_request - volume creation request.
- * @vol_id: ID to assign to the new volume (%UBI_VOL_NUM_AUTO should be used to
- * automatically assign ID)
- * @alignment: volume alignment
- * @bytes: volume size in bytes
- * @vol_type: volume type (%UBI_DYNAMIC_VOLUME or %UBI_STATIC_VOLUME)
- * @name: volume name
- */
-struct ubi_mkvol_request
-{
- int vol_id;
- int alignment;
- long long bytes;
- int vol_type;
- const char *name;
-};
-
-/**
- * struct ubi_info - general UBI information.
- * @dev_count: count of UBI devices in system
- * @lowest_dev_num: lowest UBI device number
- * @highest_dev_num: highest UBI device number
- * @version: UBI version
- * @ctrl_major: major number of the UBI control device
- * @ctrl_minor: minor number of the UBI control device
- */
-struct ubi_info
-{
- int dev_count;
- int lowest_dev_num;
- int highest_dev_num;
- int version;
- int ctrl_major;
- int ctrl_minor;
-};
-
-/**
- * struct ubi_dev_info - UBI device information.
- * @vol_count: count of volumes on this UBI device
- * @lowest_vol_num: lowest volume number
- * @highest_vol_num: highest volume number
- * @major: major number of corresponding character device
- * @minor: minor number of corresponding character device
- * @total_lebs: total number of logical eraseblocks on this UBI device
- * @avail_lebs: how many logical eraseblocks are not used and available for new
- * volumes
- * @total_bytes: @total_lebs * @leb_size
- * @avail_bytes: @avail_lebs * @leb_size
- * @bad_count: count of bad physical eraseblocks
- * @leb_size: logical eraseblock size
- * @max_ec: current highest erase counter value
- * @bad_rsvd: how many physical eraseblocks of the underlying flash device are
- * reserved for bad eraseblocks handling
- * @max_vol_count: maximum possible number of volumes on this UBI device
- * @min_io_size: minimum input/output unit size of the UBI device
- */
-struct ubi_dev_info
-{
- int dev_num;
- int vol_count;
- int lowest_vol_num;
- int highest_vol_num;
- int major;
- int minor;
- int total_lebs;
- int avail_lebs;
- long long total_bytes;
- long long avail_bytes;
- int bad_count;
- int leb_size;
- long long max_ec;
- int bad_rsvd;
- int max_vol_count;
- int min_io_size;
-};
-
-/**
- * struct ubi_vol_info - UBI volume information.
- * @dev_num: UBI device number the volume resides on
- * @vol_id: ID of this volume
- * @major: major number of corresponding volume character device
- * @minor: minor number of corresponding volume character device
- * @dev_major: major number of corresponding UBI device character device
- * @dev_minor: minor number of corresponding UBI device character device
- * @type: volume type (%UBI_DYNAMIC_VOLUME or %UBI_STATIC_VOLUME)
- * @alignment: alignemnt of this volume
- * @data_bytes: how many data bytes are stored on this volume (equivalent to
- * @rsvd_bytes for dynamic volumes)
- * @rsvd_bytes: how many bytes are reserved for this volume
- * @rsvd_lebs: how many logical eraseblocks are reserved for this volume
- * @leb_size: logical eraseblock size of this volume (may be less then
- * device's logical eraseblock size due to alignment)
- * @corrupted: non-zero if the volume is corrupted
- * @name: volume name (null-terminated)
- */
-struct ubi_vol_info
-{
- int dev_num;
- int vol_id;
- int major;
- int minor;
- int dev_major;
- int dev_minor;
- int type;
- int alignment;
- long long data_bytes;
- long long rsvd_bytes;
- int rsvd_lebs;
- int leb_size;
- int corrupted;
- char name[UBI_VOL_NAME_MAX + 1];
-};
-
-/**
- * libubi_open - open UBI library.
- * This function initializes and opens the UBI library and returns UBI library
- * descriptor in case of success and %NULL in case of failure.
- */
-libubi_t libubi_open(void);
-
-/**
- * libubi_close - close UBI library.
- * @desc UBI library descriptor
- */
-void libubi_close(libubi_t desc);
-
-/**
- * ubi_get_info - get general UBI information.
- * @desc: UBI library descriptor
- * @info: pointer to the &struct ubi_info object to fill
- *
- * This function fills the passed @info object with general UBI information and
- * returns %0 in case of success and %-1 in case of failure.
- */
-int ubi_get_info(libubi_t desc, struct ubi_info *info);
-
-/**
- * ubi_attach_mtd - attach MTD device to UBI.
- * @desc: UBI library descriptor
- * @node: name of the UBI control character device node
- * @req: MTD attach request.
- *
- * This function creates a new UBI device by attaching an MTD device as
- * described by @req. Returns %0 in case of success and %-1 in case of failure.
- * The newly created UBI device number is returned in @req->dev_num.
- */
-int ubi_attach_mtd(libubi_t desc, const char *node,
- struct ubi_attach_request *req);
-
-/**
- * ubi_detach_mtd - detach an MTD device.
- * @desc: UBI library descriptor
- * @node: name of the UBI control character device node
- * @mtd_num: MTD device number to detach
- *
- * This function detaches MTD device number @mtd_num from UBI, which means the
- * corresponding UBI device is removed. Returns zero in case of success and %-1
- * in case of failure.
- */
-int ubi_detach_mtd(libubi_t desc, const char *node, int mtd_num);
-
-/**
- * ubi_remove_dev - remove an UBI device.
- * @desc: UBI library descriptor
- * @node: name of the UBI control character device node
- * @ubi_dev: UBI device number to remove
- *
- * This function removes UBI device number @ubi_dev and returns zero in case of
- * success and %-1 in case of failure.
- */
-int ubi_remove_dev(libubi_t desc, const char *node, int ubi_dev);
-
-/**
- * ubi_mkvol - create an UBI volume.
- * @desc: UBI library descriptor
- * @node: name of the UBI character device to create a volume at
- * @req: UBI volume creation request
- *
- * This function creates a UBI volume as described at @req and returns %0 in
- * case of success and %-1 in case of failure. The assigned volume ID is
- * returned in @req->vol_id.
- */
-int ubi_mkvol(libubi_t desc, const char *node, struct ubi_mkvol_request *req);
-
-/**
- * ubi_rmvol - remove a UBI volume.
- * @desc: UBI library descriptor
- * @node: name of the UBI character device to remove a volume from
- * @vol_id: ID of the volume to remove
- *
- * This function removes volume @vol_id from UBI device @node and returns %0 in
- * case of success and %-1 in case of failure.
- */
-int ubi_rmvol(libubi_t desc, const char *node, int vol_id);
-
-/**
- * ubi_rsvol - re-size UBI volume.
- * @desc: UBI library descriptor
- * @node: name of the UBI character device owning the volume which should be
- * re-sized
- * @vol_id: volume ID to re-size
- * @bytes: new volume size in bytes
- *
- * This function returns %0 in case of success and %-1 in case of error.
- */
-int ubi_rsvol(libubi_t desc, const char *node, int vol_id, long long bytes);
-
-/**
- * ubi_node_type - test UBI node type.
- * @desc: UBI library descriptor
- * @node: the node to test
- *
- * This function tests whether @node is a UBI device or volume node and returns
- * %1 if this is an UBI device node, %2 if this is a volume node, and %-1 if
- * this is not an UBI node or if an error occurred (the latter is indicated by
- * a non-zero errno).
- */
-int ubi_node_type(libubi_t desc, const char *node);
-
-/**
- * ubi_get_dev_info - get UBI device information.
- * @desc: UBI library descriptor
- * @node: name of the UBI character device to fetch information about
- * @info: pointer to the &struct ubi_dev_info object to fill
- *
- * This function fills the passed @info object with UBI device information and
- * returns %0 in case of success and %-1 in case of failure.
- */
-int ubi_get_dev_info(libubi_t desc, const char *node,
- struct ubi_dev_info *info);
-
-/**
- * ubi_get_dev_info1 - get UBI device information.
- * @desc: UBI library descriptor
- * @dev_num: UBI device number to fetch information about
- * @info: pointer to the &struct ubi_dev_info object to fill
- *
- * This function is identical to 'ubi_get_dev_info()' except that it accepts UBI
- * device number, not UBI character device.
- */
-int ubi_get_dev_info1(libubi_t desc, int dev_num, struct ubi_dev_info *info);
-
-/**
- * ubi_get_vol_info - get UBI volume information.
- * @desc: UBI library descriptor
- * @node: name of the UBI volume character device to fetch information about
- * @info: pointer to the &struct ubi_vol_info object to fill
- *
- * This function fills the passed @info object with UBI volume information and
- * returns %0 in case of success and %-1 in case of failure.
- */
-int ubi_get_vol_info(libubi_t desc, const char *node,
- struct ubi_vol_info *info);
-
-/**
- * ubi_get_vol_info1 - get UBI volume information.
- * @desc: UBI library descriptor
- * @dev_num: UBI device number
- * @vol_id: ID of the UBI volume to fetch information about
- * @info: pointer to the &struct ubi_vol_info object to fill
- *
- * This function is identical to 'ubi_get_vol_info()' except that it accepts UBI
- * volume number, not UBI volume character device.
- */
-int ubi_get_vol_info1(libubi_t desc, int dev_num, int vol_id,
- struct ubi_vol_info *info);
-
-/**
- * ubi_update_start - start UBI volume update.
- * @desc: UBI library descriptor
- * @fd: volume character devie file descriptor
- * @bytes: how many bytes will be written to the volume
- *
- * This function initiates UBI volume update and returns %0 in case of success
- * and %-1 in case of error. The caller is assumed to write @bytes data to the
- * volume @fd afterwards.
- */
-int ubi_update_start(libubi_t desc, int fd, long long bytes);
-
-/**
- * ubi_leb_change_start - start atomic LEB change.
- * @desc: UBI library descriptor
- * @fd: volume character devie file descriptor
- * @lnum: LEB number to change
- * @bytes: how many bytes of new data will be written to the LEB
- * @dtype: data type (%UBI_LONGTERM, %UBI_SHORTTERM, %UBI_UNKNOWN)
- *
- * This function initiates atomic LEB change operation and returns %0 in case
- * of success and %-1 in case of error. he caller is assumed to write @bytes
- * data to the volume @fd afterwards.
- */
-int ubi_leb_change_start(libubi_t desc, int fd, int lnum, int bytes, int dtype);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* !__LIBUBI_H__ */