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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_INT_H__
#define __LIBUBI_INT_H__
#ifdef __cplusplus
extern "C" {
#endif
/*
* UBI heavily makes use of the sysfs file system to interact with users-pace.
* The below are pre-define UBI file and directory names.
*/
#define SYSFS_UBI "class/ubi"
#define UBI_DEV_NAME_PATT "ubi%d"
#define UBI_VER "version"
#define DEV_DEV "dev"
#define UBI_VOL_NAME_PATT "ubi%d_%d"
#define DEV_AVAIL_EBS "avail_eraseblocks"
#define DEV_TOTAL_EBS "total_eraseblocks"
#define DEV_BAD_COUNT "bad_peb_count"
#define DEV_EB_SIZE "eraseblock_size"
#define DEV_MAX_EC "max_ec"
#define DEV_MAX_RSVD "reserved_for_bad"
#define DEV_MAX_VOLS "max_vol_count"
#define DEV_MIN_IO_SIZE "min_io_size"
#define VOL_TYPE "type"
#define VOL_DEV "dev"
#define VOL_ALIGNMENT "alignment"
#define VOL_DATA_BYTES "data_bytes"
#define VOL_RSVD_EBS "reserved_ebs"
#define VOL_EB_SIZE "usable_eb_size"
#define VOL_CORRUPTED "corrupted"
#define VOL_NAME "name"
/**
* libubi - UBI library description data structure.
*
* @sysfs sysfs file system path
* @sysfs_ubi UBI directory in sysfs
* @ubi_dev UBI device sysfs directory pattern
* @ubi_version UBI version file sysfs path
* @dev_dev UBI device's major/minor numbers file pattern
* @dev_avail_ebs count of available eraseblocks sysfs path pattern
* @dev_total_ebs total eraseblocks count sysfs path pattern
* @dev_bad_count count of bad eraseblocks sysfs path pattern
* @dev_eb_size size of UBI device's eraseblocks sysfs path pattern
* @dev_max_ec maximum erase counter sysfs path pattern
* @dev_bad_rsvd count of physical eraseblock reserved for bad eraseblocks
* handling
* @dev_max_vols maximum volumes number count sysfs path pattern
* @dev_min_io_size minimum I/O unit size sysfs path pattern
* @ubi_vol UBI volume sysfs directory pattern
* @vol_type volume type sysfs path pattern
* @vol_dev volume's major/minor numbers file pattern
* @vol_alignment volume alignment sysfs path pattern
* @vol_data_bytes volume data size sysfs path pattern
* @vol_rsvd_ebs volume reserved size sysfs path pattern
* @vol_eb_size volume eraseblock size sysfs path pattern
* @vol_corrupted volume corruption flag sysfs path pattern
* @vol_name volume name sysfs path pattern
*/
struct libubi
{
char *sysfs;
char *sysfs_ubi;
char *ubi_dev;
char *ubi_version;
char *dev_dev;
char *dev_avail_ebs;
char *dev_total_ebs;
char *dev_bad_count;
char *dev_eb_size;
char *dev_max_ec;
char *dev_bad_rsvd;
char *dev_max_vols;
char *dev_min_io_size;
char *ubi_vol;
char *vol_type;
char *vol_dev;
char *vol_alignment;
char *vol_data_bytes;
char *vol_rsvd_ebs;
char *vol_eb_size;
char *vol_corrupted;
char *vol_name;
char *vol_max_count;
};
static int read_int(const char *file, int *value);
static int dev_read_int(const char *patt, int dev_num, int *value);
static int dev_read_ll(const char *patt, int dev_num, long long *value);
static int dev_read_data(const char *patt, int dev_num, void *buf, int buf_len);
static int vol_read_int(const char *patt, int dev_num, int vol_id, int *value);
static int vol_read_ll(const char *patt, int dev_num, int vol_id,
long long *value);
static int vol_read_data(const char *patt, int dev_num, int vol_id, void *buf,
int buf_len);
static char *mkpath(const char *path, const char *name);
static int find_dev_num(struct libubi *lib, const char *node);
static int find_dev_num_vol(struct libubi *lib, const char *node);
static int find_vol_num(struct libubi *lib, int dev_num, const char *node);
#ifdef __cplusplus
}
#endif
#endif /* !__LIBUBI_INT_H__ */
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