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