1 /* 2 * Copyright (c) International Business Machines Corp., 2006 3 * Copyright (C) 2009 Nokia Corporation 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 13 * the GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 18 * 19 * Author: Artem Bityutskiy 20 * 21 * MTD library. 22 */ 23 24 /* Imported from mtd-utils by dehrenberg */ 25 26 #ifndef __LIBMTD_INT_H__ 27 #define __LIBMTD_INT_H__ 28 29 #ifdef __cplusplus 30 extern "C" { 31 #endif 32 33 #define PROGRAM_NAME "libmtd" 34 35 #define SYSFS_MTD "class/mtd" 36 #define MTD_NAME_PATT "mtd%d" 37 #define MTD_DEV "dev" 38 #define MTD_NAME "name" 39 #define MTD_TYPE "type" 40 #define MTD_EB_SIZE "erasesize" 41 #define MTD_SIZE "size" 42 #define MTD_MIN_IO_SIZE "writesize" 43 #define MTD_SUBPAGE_SIZE "subpagesize" 44 #define MTD_OOB_SIZE "oobsize" 45 #define MTD_REGION_CNT "numeraseregions" 46 #define MTD_FLAGS "flags" 47 48 #define OFFS64_IOCTLS_UNKNOWN 0 49 #define OFFS64_IOCTLS_NOT_SUPPORTED 1 50 #define OFFS64_IOCTLS_SUPPORTED 2 51 52 /** 53 * libmtd - MTD library description data structure. 54 * @sysfs_mtd: MTD directory in sysfs 55 * @mtd: MTD device sysfs directory pattern 56 * @mtd_dev: MTD device major/minor numbers file pattern 57 * @mtd_name: MTD device name file pattern 58 * @mtd_type: MTD device type file pattern 59 * @mtd_eb_size: MTD device eraseblock size file pattern 60 * @mtd_size: MTD device size file pattern 61 * @mtd_min_io_size: minimum I/O unit size file pattern 62 * @mtd_subpage_size: sub-page size file pattern 63 * @mtd_oob_size: MTD device OOB size file pattern 64 * @mtd_region_cnt: count of additional erase regions file pattern 65 * @mtd_flags: MTD device flags file pattern 66 * @sysfs_supported: non-zero if sysfs is supported by MTD 67 * @offs64_ioctls: %OFFS64_IOCTLS_SUPPORTED if 64-bit %MEMERASE64, 68 * %MEMREADOOB64, %MEMWRITEOOB64 MTD device ioctls are 69 * supported, %OFFS64_IOCTLS_NOT_SUPPORTED if not, and 70 * %OFFS64_IOCTLS_UNKNOWN if it is not known yet; 71 * 72 * Note, we cannot find out whether 64-bit ioctls are supported by MTD when we 73 * are initializing the library, because this requires an MTD device node. 74 * Indeed, we have to actually call the ioctl and check for %ENOTTY to find 75 * out whether it is supported or not. 76 * 77 * Thus, we leave %offs64_ioctls uninitialized in 'libmtd_open()', and 78 * initialize it later, when corresponding libmtd function is used, and when 79 * we actually have a device node and can invoke an ioctl command on it. 80 */ 81 struct libmtd 82 { 83 char *sysfs_mtd; 84 char *mtd; 85 char *mtd_dev; 86 char *mtd_name; 87 char *mtd_type; 88 char *mtd_eb_size; 89 char *mtd_size; 90 char *mtd_min_io_size; 91 char *mtd_subpage_size; 92 char *mtd_oob_size; 93 char *mtd_region_cnt; 94 char *mtd_flags; 95 unsigned int sysfs_supported:1; 96 unsigned int offs64_ioctls:2; 97 }; 98 99 int legacy_libmtd_open(void); 100 int legacy_dev_present(int mtd_num); 101 int legacy_mtd_get_info(struct mtd_info *info); 102 int legacy_get_dev_info(const char *node, struct mtd_dev_info *mtd); 103 int legacy_get_dev_info1(int dev_num, struct mtd_dev_info *mtd); 104 105 #ifdef __cplusplus 106 } 107 #endif 108 109 #endif /* !__LIBMTD_INT_H__ */ 110
