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TOMOYO Linux Cross Reference
Linux/include/uapi/mtd/mtd-abi.h

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Diff markup

Differences between /include/uapi/mtd/mtd-abi.h (Version linux-6.12-rc7) and /include/uapi/mtd/mtd-abi.h (Version linux-4.11.12)


  1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linu << 
  2 /*                                                  1 /*
  3  * Copyright © 1999-2010 David Woodhouse <dwm      2  * Copyright © 1999-2010 David Woodhouse <dwmw2@infradead.org> et al.
  4  *                                                  3  *
  5  * This program is free software; you can redi      4  * This program is free software; you can redistribute it and/or modify
  6  * it under the terms of the GNU General Publi      5  * it under the terms of the GNU General Public License as published by
  7  * the Free Software Foundation; either versio      6  * the Free Software Foundation; either version 2 of the License, or
  8  * (at your option) any later version.              7  * (at your option) any later version.
  9  *                                                  8  *
 10  * This program is distributed in the hope tha      9  * This program is distributed in the hope that it will be useful,
 11  * but WITHOUT ANY WARRANTY; without even the      10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR     11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 13  * GNU General Public License for more details     12  * GNU General Public License for more details.
 14  *                                                 13  *
 15  * You should have received a copy of the GNU      14  * You should have received a copy of the GNU General Public License
 16  * along with this program; if not, write to t     15  * along with this program; if not, write to the Free Software
 17  * Foundation, Inc., 51 Franklin St, Fifth Flo     16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 18  *                                                 17  *
 19  */                                                18  */
 20                                                    19 
 21 #ifndef __MTD_ABI_H__                              20 #ifndef __MTD_ABI_H__
 22 #define __MTD_ABI_H__                              21 #define __MTD_ABI_H__
 23                                                    22 
 24 #include <linux/types.h>                           23 #include <linux/types.h>
 25                                                    24 
 26 struct erase_info_user {                           25 struct erase_info_user {
 27         __u32 start;                               26         __u32 start;
 28         __u32 length;                              27         __u32 length;
 29 };                                                 28 };
 30                                                    29 
 31 struct erase_info_user64 {                         30 struct erase_info_user64 {
 32         __u64 start;                               31         __u64 start;
 33         __u64 length;                              32         __u64 length;
 34 };                                                 33 };
 35                                                    34 
 36 struct mtd_oob_buf {                               35 struct mtd_oob_buf {
 37         __u32 start;                               36         __u32 start;
 38         __u32 length;                              37         __u32 length;
 39         unsigned char __user *ptr;                 38         unsigned char __user *ptr;
 40 };                                                 39 };
 41                                                    40 
 42 struct mtd_oob_buf64 {                             41 struct mtd_oob_buf64 {
 43         __u64 start;                               42         __u64 start;
 44         __u32 pad;                                 43         __u32 pad;
 45         __u32 length;                              44         __u32 length;
 46         __u64 usr_ptr;                             45         __u64 usr_ptr;
 47 };                                                 46 };
 48                                                    47 
 49 /**                                                48 /**
 50  * MTD operation modes                             49  * MTD operation modes
 51  *                                                 50  *
 52  * @MTD_OPS_PLACE_OOB:  OOB data are placed at     51  * @MTD_OPS_PLACE_OOB:  OOB data are placed at the given offset (default)
 53  * @MTD_OPS_AUTO_OOB:   OOB data are automatic     52  * @MTD_OPS_AUTO_OOB:   OOB data are automatically placed at the free areas
 54  *                      which are defined by t     53  *                      which are defined by the internal ecclayout
 55  * @MTD_OPS_RAW:        data are transferred a     54  * @MTD_OPS_RAW:        data are transferred as-is, with no error correction;
 56  *                      this mode implies %MTD     55  *                      this mode implies %MTD_OPS_PLACE_OOB
 57  *                                                 56  *
 58  * These modes can be passed to ioctl(MEMWRITE !!  57  * These modes can be passed to ioctl(MEMWRITE) and are also used internally.
 59  * also used internally. See notes on "MTD fil !!  58  * See notes on "MTD file modes" for discussion on %MTD_OPS_RAW vs.
 60  * %MTD_OPS_RAW vs. %MTD_FILE_MODE_RAW.        !!  59  * %MTD_FILE_MODE_RAW.
 61  */                                                60  */
 62 enum {                                             61 enum {
 63         MTD_OPS_PLACE_OOB = 0,                     62         MTD_OPS_PLACE_OOB = 0,
 64         MTD_OPS_AUTO_OOB = 1,                      63         MTD_OPS_AUTO_OOB = 1,
 65         MTD_OPS_RAW = 2,                           64         MTD_OPS_RAW = 2,
 66 };                                                 65 };
 67                                                    66 
 68 /**                                                67 /**
 69  * struct mtd_write_req - data structure for r     68  * struct mtd_write_req - data structure for requesting a write operation
 70  *                                                 69  *
 71  * @start:      start address                      70  * @start:      start address
 72  * @len:        length of data buffer (only lo !!  71  * @len:        length of data buffer
 73  * @ooblen:     length of OOB buffer (only low !!  72  * @ooblen:     length of OOB buffer
 74  * @usr_data:   user-provided data buffer          73  * @usr_data:   user-provided data buffer
 75  * @usr_oob:    user-provided OOB buffer           74  * @usr_oob:    user-provided OOB buffer
 76  * @mode:       MTD mode (see "MTD operation m     75  * @mode:       MTD mode (see "MTD operation modes")
 77  * @padding:    reserved, must be set to 0         76  * @padding:    reserved, must be set to 0
 78  *                                                 77  *
 79  * This structure supports ioctl(MEMWRITE) ope     78  * This structure supports ioctl(MEMWRITE) operations, allowing data and/or OOB
 80  * writes in various modes. To write to OOB-on     79  * writes in various modes. To write to OOB-only, set @usr_data == NULL, and to
 81  * write data-only, set @usr_oob == NULL. Howe     80  * write data-only, set @usr_oob == NULL. However, setting both @usr_data and
 82  * @usr_oob to NULL is not allowed.                81  * @usr_oob to NULL is not allowed.
 83  */                                                82  */
 84 struct mtd_write_req {                             83 struct mtd_write_req {
 85         __u64 start;                               84         __u64 start;
 86         __u64 len;                                 85         __u64 len;
 87         __u64 ooblen;                              86         __u64 ooblen;
 88         __u64 usr_data;                            87         __u64 usr_data;
 89         __u64 usr_oob;                             88         __u64 usr_oob;
 90         __u8 mode;                                 89         __u8 mode;
 91         __u8 padding[7];                           90         __u8 padding[7];
 92 };                                                 91 };
 93                                                    92 
 94 /**                                            << 
 95  * struct mtd_read_req_ecc_stats - ECC statist << 
 96  *                                             << 
 97  * @uncorrectable_errors: the number of uncorr << 
 98  *                        during the read oper << 
 99  * @corrected_bitflips: the number of bitflips << 
100  *                      operation              << 
101  * @max_bitflips: the maximum number of bitfli << 
102  *                step for the data read durin << 
103  *                can be used to decide whethe << 
104  *                region of the MTD device sho << 
105  *                avoid data loss.             << 
106  */                                            << 
107 struct mtd_read_req_ecc_stats {                << 
108         __u32 uncorrectable_errors;            << 
109         __u32 corrected_bitflips;              << 
110         __u32 max_bitflips;                    << 
111 };                                             << 
112                                                << 
113 /**                                            << 
114  * struct mtd_read_req - data structure for re << 
115  *                                             << 
116  * @start:      start address                  << 
117  * @len:        length of data buffer (only lo << 
118  * @ooblen:     length of OOB buffer (only low << 
119  * @usr_data:   user-provided data buffer      << 
120  * @usr_oob:    user-provided OOB buffer       << 
121  * @mode:       MTD mode (see "MTD operation m << 
122  * @padding:    reserved, must be set to 0     << 
123  * @ecc_stats:  ECC statistics for the read op << 
124  *                                             << 
125  * This structure supports ioctl(MEMREAD) oper << 
126  * reads in various modes. To read from OOB-on << 
127  * read data-only, set @usr_oob == NULL. Howev << 
128  * @usr_oob to NULL is not allowed.            << 
129  */                                            << 
130 struct mtd_read_req {                          << 
131         __u64 start;                           << 
132         __u64 len;                             << 
133         __u64 ooblen;                          << 
134         __u64 usr_data;                        << 
135         __u64 usr_oob;                         << 
136         __u8 mode;                             << 
137         __u8 padding[7];                       << 
138         struct mtd_read_req_ecc_stats ecc_stat << 
139 };                                             << 
140                                                << 
141 #define MTD_ABSENT              0                  93 #define MTD_ABSENT              0
142 #define MTD_RAM                 1                  94 #define MTD_RAM                 1
143 #define MTD_ROM                 2                  95 #define MTD_ROM                 2
144 #define MTD_NORFLASH            3                  96 #define MTD_NORFLASH            3
145 #define MTD_NANDFLASH           4       /* SLC     97 #define MTD_NANDFLASH           4       /* SLC NAND */
146 #define MTD_DATAFLASH           6                  98 #define MTD_DATAFLASH           6
147 #define MTD_UBIVOLUME           7                  99 #define MTD_UBIVOLUME           7
148 #define MTD_MLCNANDFLASH        8       /* MLC    100 #define MTD_MLCNANDFLASH        8       /* MLC NAND (including TLC) */
149                                                   101 
150 #define MTD_WRITEABLE           0x400   /* Dev    102 #define MTD_WRITEABLE           0x400   /* Device is writeable */
151 #define MTD_BIT_WRITEABLE       0x800   /* Sin    103 #define MTD_BIT_WRITEABLE       0x800   /* Single bits can be flipped */
152 #define MTD_NO_ERASE            0x1000  /* No     104 #define MTD_NO_ERASE            0x1000  /* No erase necessary */
153 #define MTD_POWERUP_LOCK        0x2000  /* Alw    105 #define MTD_POWERUP_LOCK        0x2000  /* Always locked after reset */
154 #define MTD_SLC_ON_MLC_EMULATION 0x4000 /* Emu << 
155                                                   106 
156 /* Some common devices / combinations of capab    107 /* Some common devices / combinations of capabilities */
157 #define MTD_CAP_ROM             0                 108 #define MTD_CAP_ROM             0
158 #define MTD_CAP_RAM             (MTD_WRITEABLE    109 #define MTD_CAP_RAM             (MTD_WRITEABLE | MTD_BIT_WRITEABLE | MTD_NO_ERASE)
159 #define MTD_CAP_NORFLASH        (MTD_WRITEABLE    110 #define MTD_CAP_NORFLASH        (MTD_WRITEABLE | MTD_BIT_WRITEABLE)
160 #define MTD_CAP_NANDFLASH       (MTD_WRITEABLE    111 #define MTD_CAP_NANDFLASH       (MTD_WRITEABLE)
161 #define MTD_CAP_NVRAM           (MTD_WRITEABLE    112 #define MTD_CAP_NVRAM           (MTD_WRITEABLE | MTD_BIT_WRITEABLE | MTD_NO_ERASE)
162                                                   113 
163 /* Obsolete ECC byte placement modes (used wit    114 /* Obsolete ECC byte placement modes (used with obsolete MEMGETOOBSEL) */
164 #define MTD_NANDECC_OFF         0       /* Swi !! 115 #define MTD_NANDECC_OFF         0       // Switch off ECC (Not recommended)
165 #define MTD_NANDECC_PLACE       1       /* Use !! 116 #define MTD_NANDECC_PLACE       1       // Use the given placement in the structure (YAFFS1 legacy mode)
166 #define MTD_NANDECC_AUTOPLACE   2       /* Use !! 117 #define MTD_NANDECC_AUTOPLACE   2       // Use the default placement scheme
167 #define MTD_NANDECC_PLACEONLY   3       /* Use !! 118 #define MTD_NANDECC_PLACEONLY   3       // Use the given placement in the structure (Do not store ecc result on read)
168 #define MTD_NANDECC_AUTOPL_USR  4       /* Use !! 119 #define MTD_NANDECC_AUTOPL_USR  4       // Use the given autoplacement scheme rather than using the default
169                                                   120 
170 /* OTP mode selection */                          121 /* OTP mode selection */
171 #define MTD_OTP_OFF             0                 122 #define MTD_OTP_OFF             0
172 #define MTD_OTP_FACTORY         1                 123 #define MTD_OTP_FACTORY         1
173 #define MTD_OTP_USER            2                 124 #define MTD_OTP_USER            2
174                                                   125 
175 struct mtd_info_user {                            126 struct mtd_info_user {
176         __u8 type;                                127         __u8 type;
177         __u32 flags;                              128         __u32 flags;
178         __u32 size;     /* Total size of the M    129         __u32 size;     /* Total size of the MTD */
179         __u32 erasesize;                          130         __u32 erasesize;
180         __u32 writesize;                          131         __u32 writesize;
181         __u32 oobsize;  /* Amount of OOB data     132         __u32 oobsize;  /* Amount of OOB data per block (e.g. 16) */
182         __u64 padding;  /* Old obsolete field;    133         __u64 padding;  /* Old obsolete field; do not use */
183 };                                                134 };
184                                                   135 
185 struct region_info_user {                         136 struct region_info_user {
186         __u32 offset;           /* At which th    137         __u32 offset;           /* At which this region starts,
187                                  * from the be    138                                  * from the beginning of the MTD */
188         __u32 erasesize;        /* For this re    139         __u32 erasesize;        /* For this region */
189         __u32 numblocks;        /* Number of b    140         __u32 numblocks;        /* Number of blocks in this region */
190         __u32 regionindex;                        141         __u32 regionindex;
191 };                                                142 };
192                                                   143 
193 struct otp_info {                                 144 struct otp_info {
194         __u32 start;                              145         __u32 start;
195         __u32 length;                             146         __u32 length;
196         __u32 locked;                             147         __u32 locked;
197 };                                                148 };
198                                                   149 
199 /*                                                150 /*
200  * Note, the following ioctl existed in the pa    151  * Note, the following ioctl existed in the past and was removed:
201  * #define MEMSETOOBSEL           _IOW('M', 9,    152  * #define MEMSETOOBSEL           _IOW('M', 9, struct nand_oobinfo)
202  * Try to avoid adding a new ioctl with the sa    153  * Try to avoid adding a new ioctl with the same ioctl number.
203  */                                               154  */
204                                                   155 
205 /* Get basic MTD characteristics info (better     156 /* Get basic MTD characteristics info (better to use sysfs) */
206 #define MEMGETINFO              _IOR('M', 1, s    157 #define MEMGETINFO              _IOR('M', 1, struct mtd_info_user)
207 /* Erase segment of MTD */                        158 /* Erase segment of MTD */
208 #define MEMERASE                _IOW('M', 2, s    159 #define MEMERASE                _IOW('M', 2, struct erase_info_user)
209 /* Write out-of-band data from MTD */             160 /* Write out-of-band data from MTD */
210 #define MEMWRITEOOB             _IOWR('M', 3,     161 #define MEMWRITEOOB             _IOWR('M', 3, struct mtd_oob_buf)
211 /* Read out-of-band data from MTD */              162 /* Read out-of-band data from MTD */
212 #define MEMREADOOB              _IOWR('M', 4,     163 #define MEMREADOOB              _IOWR('M', 4, struct mtd_oob_buf)
213 /* Lock a chip (for MTD that supports it) */      164 /* Lock a chip (for MTD that supports it) */
214 #define MEMLOCK                 _IOW('M', 5, s    165 #define MEMLOCK                 _IOW('M', 5, struct erase_info_user)
215 /* Unlock a chip (for MTD that supports it) */    166 /* Unlock a chip (for MTD that supports it) */
216 #define MEMUNLOCK               _IOW('M', 6, s    167 #define MEMUNLOCK               _IOW('M', 6, struct erase_info_user)
217 /* Get the number of different erase regions *    168 /* Get the number of different erase regions */
218 #define MEMGETREGIONCOUNT       _IOR('M', 7, i    169 #define MEMGETREGIONCOUNT       _IOR('M', 7, int)
219 /* Get information about the erase region for     170 /* Get information about the erase region for a specific index */
220 #define MEMGETREGIONINFO        _IOWR('M', 8,     171 #define MEMGETREGIONINFO        _IOWR('M', 8, struct region_info_user)
221 /* Get info about OOB modes (e.g., RAW, PLACE,    172 /* Get info about OOB modes (e.g., RAW, PLACE, AUTO) - legacy interface */
222 #define MEMGETOOBSEL            _IOR('M', 10,     173 #define MEMGETOOBSEL            _IOR('M', 10, struct nand_oobinfo)
223 /* Check if an eraseblock is bad */               174 /* Check if an eraseblock is bad */
224 #define MEMGETBADBLOCK          _IOW('M', 11,     175 #define MEMGETBADBLOCK          _IOW('M', 11, __kernel_loff_t)
225 /* Mark an eraseblock as bad */                   176 /* Mark an eraseblock as bad */
226 #define MEMSETBADBLOCK          _IOW('M', 12,     177 #define MEMSETBADBLOCK          _IOW('M', 12, __kernel_loff_t)
227 /* Set OTP (One-Time Programmable) mode (facto    178 /* Set OTP (One-Time Programmable) mode (factory vs. user) */
228 #define OTPSELECT               _IOR('M', 13,     179 #define OTPSELECT               _IOR('M', 13, int)
229 /* Get number of OTP (One-Time Programmable) r    180 /* Get number of OTP (One-Time Programmable) regions */
230 #define OTPGETREGIONCOUNT       _IOW('M', 14,     181 #define OTPGETREGIONCOUNT       _IOW('M', 14, int)
231 /* Get all OTP (One-Time Programmable) info ab    182 /* Get all OTP (One-Time Programmable) info about MTD */
232 #define OTPGETREGIONINFO        _IOW('M', 15,     183 #define OTPGETREGIONINFO        _IOW('M', 15, struct otp_info)
233 /* Lock a given range of user data (must be in    184 /* Lock a given range of user data (must be in mode %MTD_FILE_MODE_OTP_USER) */
234 #define OTPLOCK                 _IOR('M', 16,     185 #define OTPLOCK                 _IOR('M', 16, struct otp_info)
235 /* Get ECC layout (deprecated) */                 186 /* Get ECC layout (deprecated) */
236 #define ECCGETLAYOUT            _IOR('M', 17,     187 #define ECCGETLAYOUT            _IOR('M', 17, struct nand_ecclayout_user)
237 /* Get statistics about corrected/uncorrected     188 /* Get statistics about corrected/uncorrected errors */
238 #define ECCGETSTATS             _IOR('M', 18,     189 #define ECCGETSTATS             _IOR('M', 18, struct mtd_ecc_stats)
239 /* Set MTD mode on a per-file-descriptor basis    190 /* Set MTD mode on a per-file-descriptor basis (see "MTD file modes") */
240 #define MTDFILEMODE             _IO('M', 19)      191 #define MTDFILEMODE             _IO('M', 19)
241 /* Erase segment of MTD (supports 64-bit addre    192 /* Erase segment of MTD (supports 64-bit address) */
242 #define MEMERASE64              _IOW('M', 20,     193 #define MEMERASE64              _IOW('M', 20, struct erase_info_user64)
243 /* Write data to OOB (64-bit version) */          194 /* Write data to OOB (64-bit version) */
244 #define MEMWRITEOOB64           _IOWR('M', 21,    195 #define MEMWRITEOOB64           _IOWR('M', 21, struct mtd_oob_buf64)
245 /* Read data from OOB (64-bit version) */         196 /* Read data from OOB (64-bit version) */
246 #define MEMREADOOB64            _IOWR('M', 22,    197 #define MEMREADOOB64            _IOWR('M', 22, struct mtd_oob_buf64)
247 /* Check if chip is locked (for MTD that suppo    198 /* Check if chip is locked (for MTD that supports it) */
248 #define MEMISLOCKED             _IOR('M', 23,     199 #define MEMISLOCKED             _IOR('M', 23, struct erase_info_user)
249 /*                                                200 /*
250  * Most generic write interface; can write in-    201  * Most generic write interface; can write in-band and/or out-of-band in various
251  * modes (see "struct mtd_write_req"). This io    202  * modes (see "struct mtd_write_req"). This ioctl is not supported for flashes
252  * without OOB, e.g., NOR flash.                  203  * without OOB, e.g., NOR flash.
253  */                                               204  */
254 #define MEMWRITE                _IOWR('M', 24,    205 #define MEMWRITE                _IOWR('M', 24, struct mtd_write_req)
255 /* Erase a given range of user data (must be i << 
256 #define OTPERASE                _IOW('M', 25,  << 
257 /*                                             << 
258  * Most generic read interface; can read in-ba << 
259  * modes (see "struct mtd_read_req"). This ioc << 
260  * without OOB, e.g., NOR flash.               << 
261  */                                            << 
262 #define MEMREAD                 _IOWR('M', 26, << 
263                                                   206 
264 /*                                                207 /*
265  * Obsolete legacy interface. Keep it in order    208  * Obsolete legacy interface. Keep it in order not to break userspace
266  * interfaces                                     209  * interfaces
267  */                                               210  */
268 struct nand_oobinfo {                             211 struct nand_oobinfo {
269         __u32 useecc;                             212         __u32 useecc;
270         __u32 eccbytes;                           213         __u32 eccbytes;
271         __u32 oobfree[8][2];                      214         __u32 oobfree[8][2];
272         __u32 eccpos[32];                         215         __u32 eccpos[32];
273 };                                                216 };
274                                                   217 
275 struct nand_oobfree {                             218 struct nand_oobfree {
276         __u32 offset;                             219         __u32 offset;
277         __u32 length;                             220         __u32 length;
278 };                                                221 };
279                                                   222 
280 #define MTD_MAX_OOBFREE_ENTRIES 8                 223 #define MTD_MAX_OOBFREE_ENTRIES 8
281 #define MTD_MAX_ECCPOS_ENTRIES  64                224 #define MTD_MAX_ECCPOS_ENTRIES  64
282 /*                                                225 /*
283  * OBSOLETE: ECC layout control structure. Exp    226  * OBSOLETE: ECC layout control structure. Exported to user-space via ioctl
284  * ECCGETLAYOUT for backwards compatbility and    227  * ECCGETLAYOUT for backwards compatbility and should not be mistaken as a
285  * complete set of ECC information. The ioctl     228  * complete set of ECC information. The ioctl truncates the larger internal
286  * structure to retain binary compatibility wi    229  * structure to retain binary compatibility with the static declaration of the
287  * ioctl. Note that the "MTD_MAX_..._ENTRIES"     230  * ioctl. Note that the "MTD_MAX_..._ENTRIES" macros represent the max size of
288  * the user struct, not the MAX size of the in    231  * the user struct, not the MAX size of the internal OOB layout representation.
289  */                                               232  */
290 struct nand_ecclayout_user {                      233 struct nand_ecclayout_user {
291         __u32 eccbytes;                           234         __u32 eccbytes;
292         __u32 eccpos[MTD_MAX_ECCPOS_ENTRIES];     235         __u32 eccpos[MTD_MAX_ECCPOS_ENTRIES];
293         __u32 oobavail;                           236         __u32 oobavail;
294         struct nand_oobfree oobfree[MTD_MAX_OO    237         struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES];
295 };                                                238 };
296                                                   239 
297 /**                                               240 /**
298  * struct mtd_ecc_stats - error correction sta    241  * struct mtd_ecc_stats - error correction stats
299  *                                                242  *
300  * @corrected:  number of corrected bits          243  * @corrected:  number of corrected bits
301  * @failed:     number of uncorrectable errors    244  * @failed:     number of uncorrectable errors
302  * @badblocks:  number of bad blocks in this p    245  * @badblocks:  number of bad blocks in this partition
303  * @bbtblocks:  number of blocks reserved for     246  * @bbtblocks:  number of blocks reserved for bad block tables
304  */                                               247  */
305 struct mtd_ecc_stats {                            248 struct mtd_ecc_stats {
306         __u32 corrected;                          249         __u32 corrected;
307         __u32 failed;                             250         __u32 failed;
308         __u32 badblocks;                          251         __u32 badblocks;
309         __u32 bbtblocks;                          252         __u32 bbtblocks;
310 };                                                253 };
311                                                   254 
312 /*                                                255 /*
313  * MTD file modes - for read/write access to M    256  * MTD file modes - for read/write access to MTD
314  *                                                257  *
315  * @MTD_FILE_MODE_NORMAL:       OTP disabled,     258  * @MTD_FILE_MODE_NORMAL:       OTP disabled, ECC enabled
316  * @MTD_FILE_MODE_OTP_FACTORY:  OTP enabled in    259  * @MTD_FILE_MODE_OTP_FACTORY:  OTP enabled in factory mode
317  * @MTD_FILE_MODE_OTP_USER:     OTP enabled in    260  * @MTD_FILE_MODE_OTP_USER:     OTP enabled in user mode
318  * @MTD_FILE_MODE_RAW:          OTP disabled,     261  * @MTD_FILE_MODE_RAW:          OTP disabled, ECC disabled
319  *                                                262  *
320  * These modes can be set via ioctl(MTDFILEMOD !! 263  * These modes can be set via ioctl(MTDFILEMODE). The mode mode will be retained
321  * separately for each open file descriptor.      264  * separately for each open file descriptor.
322  *                                                265  *
323  * Note: %MTD_FILE_MODE_RAW provides the same     266  * Note: %MTD_FILE_MODE_RAW provides the same functionality as %MTD_OPS_RAW -
324  * raw access to the flash, without error corr    267  * raw access to the flash, without error correction or autoplacement schemes.
325  * Wherever possible, the MTD_OPS_* mode will     268  * Wherever possible, the MTD_OPS_* mode will override the MTD_FILE_MODE_* mode
326  * (e.g., when using ioctl(MEMWRITE) or ioctl( !! 269  * (e.g., when using ioctl(MEMWRITE)), but in some cases, the MTD_FILE_MODE is
327  * MTD_FILE_MODE is used out of necessity (e.g !! 270  * used out of necessity (e.g., `write()', ioctl(MEMWRITEOOB64)).
328  * ioctl(MEMWRITEOOB64)).                      << 
329  */                                               271  */
330 enum mtd_file_modes {                             272 enum mtd_file_modes {
331         MTD_FILE_MODE_NORMAL = MTD_OTP_OFF,       273         MTD_FILE_MODE_NORMAL = MTD_OTP_OFF,
332         MTD_FILE_MODE_OTP_FACTORY = MTD_OTP_FA    274         MTD_FILE_MODE_OTP_FACTORY = MTD_OTP_FACTORY,
333         MTD_FILE_MODE_OTP_USER = MTD_OTP_USER,    275         MTD_FILE_MODE_OTP_USER = MTD_OTP_USER,
334         MTD_FILE_MODE_RAW,                        276         MTD_FILE_MODE_RAW,
335 };                                                277 };
336                                                   278 
337 static inline int mtd_type_is_nand_user(const     279 static inline int mtd_type_is_nand_user(const struct mtd_info_user *mtd)
338 {                                                 280 {
339         return mtd->type == MTD_NANDFLASH || m    281         return mtd->type == MTD_NANDFLASH || mtd->type == MTD_MLCNANDFLASH;
340 }                                                 282 }
341                                                   283 
342 #endif /* __MTD_ABI_H__ */                        284 #endif /* __MTD_ABI_H__ */
343                                                   285 

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