diff options
author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:07:53 +0000 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:07:53 +0000 |
commit | 4fbe7358c7747a9165f776eb19addbb9baf7def2 (patch) | |
tree | bc7076b4f6d10c2cc2942539bb666e50f0b66954 /libdde_linux26/contrib/include/linux/mtd/ubi.h | |
parent | 21adb5284111190057db245cfc2b54091920c373 (diff) |
rename libdde_linux26 into libdde-linux26 to make dpkg-source happy
Diffstat (limited to 'libdde_linux26/contrib/include/linux/mtd/ubi.h')
-rw-r--r-- | libdde_linux26/contrib/include/linux/mtd/ubi.h | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/libdde_linux26/contrib/include/linux/mtd/ubi.h b/libdde_linux26/contrib/include/linux/mtd/ubi.h deleted file mode 100644 index 6316fafe..00000000 --- a/libdde_linux26/contrib/include/linux/mtd/ubi.h +++ /dev/null @@ -1,187 +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 __LINUX_UBI_H__ -#define __LINUX_UBI_H__ - -#include <asm/ioctl.h> -#include <linux/types.h> -#include <mtd/ubi-user.h> - -/* - * enum ubi_open_mode - UBI volume open mode constants. - * - * UBI_READONLY: read-only mode - * UBI_READWRITE: read-write mode - * UBI_EXCLUSIVE: exclusive mode - */ -enum { - UBI_READONLY = 1, - UBI_READWRITE, - UBI_EXCLUSIVE -}; - -/** - * struct ubi_volume_info - UBI volume description data structure. - * @vol_id: volume ID - * @ubi_num: UBI device number this volume belongs to - * @size: how many physical eraseblocks are reserved for this volume - * @used_bytes: how many bytes of data this volume contains - * @used_ebs: how many physical eraseblocks of this volume actually contain any - * data - * @vol_type: volume type (%UBI_DYNAMIC_VOLUME or %UBI_STATIC_VOLUME) - * @corrupted: non-zero if the volume is corrupted (static volumes only) - * @upd_marker: non-zero if the volume has update marker set - * @alignment: volume alignment - * @usable_leb_size: how many bytes are available in logical eraseblocks of - * this volume - * @name_len: volume name length - * @name: volume name - * @cdev: UBI volume character device major and minor numbers - * - * The @corrupted flag is only relevant to static volumes and is always zero - * for dynamic ones. This is because UBI does not care about dynamic volume - * data protection and only cares about protecting static volume data. - * - * The @upd_marker flag is set if the volume update operation was interrupted. - * Before touching the volume data during the update operation, UBI first sets - * the update marker flag for this volume. If the volume update operation was - * further interrupted, the update marker indicates this. If the update marker - * is set, the contents of the volume is certainly damaged and a new volume - * update operation has to be started. - * - * To put it differently, @corrupted and @upd_marker fields have different - * semantics: - * o the @corrupted flag means that this static volume is corrupted for some - * reasons, but not because an interrupted volume update - * o the @upd_marker field means that the volume is damaged because of an - * interrupted update operation. - * - * I.e., the @corrupted flag is never set if the @upd_marker flag is set. - * - * The @used_bytes and @used_ebs fields are only really needed for static - * volumes and contain the number of bytes stored in this static volume and how - * many eraseblock this data occupies. In case of dynamic volumes, the - * @used_bytes field is equivalent to @size*@usable_leb_size, and the @used_ebs - * field is equivalent to @size. - * - * In general, logical eraseblock size is a property of the UBI device, not - * of the UBI volume. Indeed, the logical eraseblock size depends on the - * physical eraseblock size and on how much bytes UBI headers consume. But - * because of the volume alignment (@alignment), the usable size of logical - * eraseblocks if a volume may be less. The following equation is true: - * @usable_leb_size = LEB size - (LEB size mod @alignment), - * where LEB size is the logical eraseblock size defined by the UBI device. - * - * The alignment is multiple to the minimal flash input/output unit size or %1 - * if all the available space is used. - * - * To put this differently, alignment may be considered is a way to change - * volume logical eraseblock sizes. - */ -struct ubi_volume_info { - int ubi_num; - int vol_id; - int size; - long long used_bytes; - int used_ebs; - int vol_type; - int corrupted; - int upd_marker; - int alignment; - int usable_leb_size; - int name_len; - const char *name; - dev_t cdev; -}; - -/** - * struct ubi_device_info - UBI device description data structure. - * @ubi_num: ubi device number - * @leb_size: logical eraseblock size on this UBI device - * @min_io_size: minimal I/O unit size - * @ro_mode: if this device is in read-only mode - * @cdev: UBI character device major and minor numbers - * - * Note, @leb_size is the logical eraseblock size offered by the UBI device. - * Volumes of this UBI device may have smaller logical eraseblock size if their - * alignment is not equivalent to %1. - */ -struct ubi_device_info { - int ubi_num; - int leb_size; - int min_io_size; - int ro_mode; - dev_t cdev; -}; - -/* UBI descriptor given to users when they open UBI volumes */ -struct ubi_volume_desc; - -int ubi_get_device_info(int ubi_num, struct ubi_device_info *di); -void ubi_get_volume_info(struct ubi_volume_desc *desc, - struct ubi_volume_info *vi); -struct ubi_volume_desc *ubi_open_volume(int ubi_num, int vol_id, int mode); -struct ubi_volume_desc *ubi_open_volume_nm(int ubi_num, const char *name, - int mode); -void ubi_close_volume(struct ubi_volume_desc *desc); -int ubi_leb_read(struct ubi_volume_desc *desc, int lnum, char *buf, int offset, - int len, int check); -int ubi_leb_write(struct ubi_volume_desc *desc, int lnum, const void *buf, - int offset, int len, int dtype); -int ubi_leb_change(struct ubi_volume_desc *desc, int lnum, const void *buf, - int len, int dtype); -int ubi_leb_erase(struct ubi_volume_desc *desc, int lnum); -int ubi_leb_unmap(struct ubi_volume_desc *desc, int lnum); -int ubi_leb_map(struct ubi_volume_desc *desc, int lnum, int dtype); -int ubi_is_mapped(struct ubi_volume_desc *desc, int lnum); -int ubi_sync(int ubi_num); - -/* - * This function is the same as the 'ubi_leb_read()' function, but it does not - * provide the checking capability. - */ -static inline int ubi_read(struct ubi_volume_desc *desc, int lnum, char *buf, - int offset, int len) -{ - return ubi_leb_read(desc, lnum, buf, offset, len, 0); -} - -/* - * This function is the same as the 'ubi_leb_write()' functions, but it does - * not have the data type argument. - */ -static inline int ubi_write(struct ubi_volume_desc *desc, int lnum, - const void *buf, int offset, int len) -{ - return ubi_leb_write(desc, lnum, buf, offset, len, UBI_UNKNOWN); -} - -/* - * This function is the same as the 'ubi_leb_change()' functions, but it does - * not have the data type argument. - */ -static inline int ubi_change(struct ubi_volume_desc *desc, int lnum, - const void *buf, int len) -{ - return ubi_leb_change(desc, lnum, buf, len, UBI_UNKNOWN); -} - -#endif /* !__LINUX_UBI_H__ */ |