110 lines
3.6 KiB
C
110 lines
3.6 KiB
C
/*
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* Copyright (c) International Business Machines Corp., 2006
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* Copyright (C) 2009 Nokia Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Author: Artem Bityutskiy
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*
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* MTD library.
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*/
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/* Imported from mtd-utils by dehrenberg */
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#ifndef __LIBMTD_INT_H__
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#define __LIBMTD_INT_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define PROGRAM_NAME "libmtd"
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#define SYSFS_MTD "class/mtd"
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#define MTD_NAME_PATT "mtd%d"
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#define MTD_DEV "dev"
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#define MTD_NAME "name"
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#define MTD_TYPE "type"
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#define MTD_EB_SIZE "erasesize"
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#define MTD_SIZE "size"
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#define MTD_MIN_IO_SIZE "writesize"
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#define MTD_SUBPAGE_SIZE "subpagesize"
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#define MTD_OOB_SIZE "oobsize"
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#define MTD_REGION_CNT "numeraseregions"
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#define MTD_FLAGS "flags"
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#define OFFS64_IOCTLS_UNKNOWN 0
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#define OFFS64_IOCTLS_NOT_SUPPORTED 1
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#define OFFS64_IOCTLS_SUPPORTED 2
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/**
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* libmtd - MTD library description data structure.
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* @sysfs_mtd: MTD directory in sysfs
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* @mtd: MTD device sysfs directory pattern
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* @mtd_dev: MTD device major/minor numbers file pattern
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* @mtd_name: MTD device name file pattern
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* @mtd_type: MTD device type file pattern
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* @mtd_eb_size: MTD device eraseblock size file pattern
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* @mtd_size: MTD device size file pattern
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* @mtd_min_io_size: minimum I/O unit size file pattern
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* @mtd_subpage_size: sub-page size file pattern
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* @mtd_oob_size: MTD device OOB size file pattern
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* @mtd_region_cnt: count of additional erase regions file pattern
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* @mtd_flags: MTD device flags file pattern
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* @sysfs_supported: non-zero if sysfs is supported by MTD
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* @offs64_ioctls: %OFFS64_IOCTLS_SUPPORTED if 64-bit %MEMERASE64,
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* %MEMREADOOB64, %MEMWRITEOOB64 MTD device ioctls are
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* supported, %OFFS64_IOCTLS_NOT_SUPPORTED if not, and
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* %OFFS64_IOCTLS_UNKNOWN if it is not known yet;
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*
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* Note, we cannot find out whether 64-bit ioctls are supported by MTD when we
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* are initializing the library, because this requires an MTD device node.
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* Indeed, we have to actually call the ioctl and check for %ENOTTY to find
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* out whether it is supported or not.
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*
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* Thus, we leave %offs64_ioctls uninitialized in 'libmtd_open()', and
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* initialize it later, when corresponding libmtd function is used, and when
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* we actually have a device node and can invoke an ioctl command on it.
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*/
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struct libmtd
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{
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char *sysfs_mtd;
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char *mtd;
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char *mtd_dev;
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char *mtd_name;
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char *mtd_type;
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char *mtd_eb_size;
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char *mtd_size;
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char *mtd_min_io_size;
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char *mtd_subpage_size;
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char *mtd_oob_size;
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char *mtd_region_cnt;
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char *mtd_flags;
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unsigned int sysfs_supported:1;
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unsigned int offs64_ioctls:2;
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};
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int legacy_libmtd_open(void);
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int legacy_dev_present(int mtd_num);
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int legacy_mtd_get_info(struct mtd_info *info);
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int legacy_get_dev_info(const char *node, struct mtd_dev_info *mtd);
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int legacy_get_dev_info1(int dev_num, struct mtd_dev_info *mtd);
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#ifdef __cplusplus
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}
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#endif
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#endif /* !__LIBMTD_INT_H__ */
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