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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 | |
fa07eaa6 | 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
94e9e396 DE |
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__ */ |