1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 *** To edit the content of this header, modify the corresponding 11 *** source file (e.g. under external/kernel-headers/original/) then 12 *** run bionic/libc/kernel/tools/update_all.py 13 *** 14 *** Any manual change here will be lost the next time this script will 15 *** be run. You've been warned! 16 *** 17 **************************************************************************** 18 ****************************************************************************/ 19 #ifndef __MTD_ABI_H__ 20 #define __MTD_ABI_H__ 21 #include <linux/types.h> 22 struct erase_info_user { 23 __u32 start; 24 __u32 length; 25 }; 26 struct erase_info_user64 { 27 __u64 start; 28 __u64 length; 29 }; 30 struct mtd_oob_buf { 31 __u32 start; 32 __u32 length; 33 unsigned char * ptr; 34 }; 35 struct mtd_oob_buf64 { 36 __u64 start; 37 __u32 pad; 38 __u32 length; 39 __u64 usr_ptr; 40 }; 41 enum { 42 MTD_OPS_PLACE_OOB = 0, 43 MTD_OPS_AUTO_OOB = 1, 44 MTD_OPS_RAW = 2, 45 }; 46 struct mtd_write_req { 47 __u64 start; 48 __u64 len; 49 __u64 ooblen; 50 __u64 usr_data; 51 __u64 usr_oob; 52 __u8 mode; 53 __u8 padding[7]; 54 }; 55 struct mtd_read_req_ecc_stats { 56 __u32 uncorrectable_errors; 57 __u32 corrected_bitflips; 58 __u32 max_bitflips; 59 }; 60 struct mtd_read_req { 61 __u64 start; 62 __u64 len; 63 __u64 ooblen; 64 __u64 usr_data; 65 __u64 usr_oob; 66 __u8 mode; 67 __u8 padding[7]; 68 struct mtd_read_req_ecc_stats ecc_stats; 69 }; 70 #define MTD_ABSENT 0 71 #define MTD_RAM 1 72 #define MTD_ROM 2 73 #define MTD_NORFLASH 3 74 #define MTD_NANDFLASH 4 75 #define MTD_DATAFLASH 6 76 #define MTD_UBIVOLUME 7 77 #define MTD_MLCNANDFLASH 8 78 #define MTD_WRITEABLE 0x400 79 #define MTD_BIT_WRITEABLE 0x800 80 #define MTD_NO_ERASE 0x1000 81 #define MTD_POWERUP_LOCK 0x2000 82 #define MTD_SLC_ON_MLC_EMULATION 0x4000 83 #define MTD_CAP_ROM 0 84 #define MTD_CAP_RAM (MTD_WRITEABLE | MTD_BIT_WRITEABLE | MTD_NO_ERASE) 85 #define MTD_CAP_NORFLASH (MTD_WRITEABLE | MTD_BIT_WRITEABLE) 86 #define MTD_CAP_NANDFLASH (MTD_WRITEABLE) 87 #define MTD_CAP_NVRAM (MTD_WRITEABLE | MTD_BIT_WRITEABLE | MTD_NO_ERASE) 88 #define MTD_NANDECC_OFF 0 89 #define MTD_NANDECC_PLACE 1 90 #define MTD_NANDECC_AUTOPLACE 2 91 #define MTD_NANDECC_PLACEONLY 3 92 #define MTD_NANDECC_AUTOPL_USR 4 93 #define MTD_OTP_OFF 0 94 #define MTD_OTP_FACTORY 1 95 #define MTD_OTP_USER 2 96 struct mtd_info_user { 97 __u8 type; 98 __u32 flags; 99 __u32 size; 100 __u32 erasesize; 101 __u32 writesize; 102 __u32 oobsize; 103 __u64 padding; 104 }; 105 struct region_info_user { 106 __u32 offset; 107 __u32 erasesize; 108 __u32 numblocks; 109 __u32 regionindex; 110 }; 111 struct otp_info { 112 __u32 start; 113 __u32 length; 114 __u32 locked; 115 }; 116 #define MEMGETINFO _IOR('M', 1, struct mtd_info_user) 117 #define MEMERASE _IOW('M', 2, struct erase_info_user) 118 #define MEMWRITEOOB _IOWR('M', 3, struct mtd_oob_buf) 119 #define MEMREADOOB _IOWR('M', 4, struct mtd_oob_buf) 120 #define MEMLOCK _IOW('M', 5, struct erase_info_user) 121 #define MEMUNLOCK _IOW('M', 6, struct erase_info_user) 122 #define MEMGETREGIONCOUNT _IOR('M', 7, int) 123 #define MEMGETREGIONINFO _IOWR('M', 8, struct region_info_user) 124 #define MEMGETOOBSEL _IOR('M', 10, struct nand_oobinfo) 125 #define MEMGETBADBLOCK _IOW('M', 11, __kernel_loff_t) 126 #define MEMSETBADBLOCK _IOW('M', 12, __kernel_loff_t) 127 #define OTPSELECT _IOR('M', 13, int) 128 #define OTPGETREGIONCOUNT _IOW('M', 14, int) 129 #define OTPGETREGIONINFO _IOW('M', 15, struct otp_info) 130 #define OTPLOCK _IOR('M', 16, struct otp_info) 131 #define ECCGETLAYOUT _IOR('M', 17, struct nand_ecclayout_user) 132 #define ECCGETSTATS _IOR('M', 18, struct mtd_ecc_stats) 133 #define MTDFILEMODE _IO('M', 19) 134 #define MEMERASE64 _IOW('M', 20, struct erase_info_user64) 135 #define MEMWRITEOOB64 _IOWR('M', 21, struct mtd_oob_buf64) 136 #define MEMREADOOB64 _IOWR('M', 22, struct mtd_oob_buf64) 137 #define MEMISLOCKED _IOR('M', 23, struct erase_info_user) 138 #define MEMWRITE _IOWR('M', 24, struct mtd_write_req) 139 #define OTPERASE _IOW('M', 25, struct otp_info) 140 #define MEMREAD _IOWR('M', 26, struct mtd_read_req) 141 struct nand_oobinfo { 142 __u32 useecc; 143 __u32 eccbytes; 144 __u32 oobfree[8][2]; 145 __u32 eccpos[32]; 146 }; 147 struct nand_oobfree { 148 __u32 offset; 149 __u32 length; 150 }; 151 #define MTD_MAX_OOBFREE_ENTRIES 8 152 #define MTD_MAX_ECCPOS_ENTRIES 64 153 struct nand_ecclayout_user { 154 __u32 eccbytes; 155 __u32 eccpos[MTD_MAX_ECCPOS_ENTRIES]; 156 __u32 oobavail; 157 struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES]; 158 }; 159 struct mtd_ecc_stats { 160 __u32 corrected; 161 __u32 failed; 162 __u32 badblocks; 163 __u32 bbtblocks; 164 }; 165 enum mtd_file_modes { 166 MTD_FILE_MODE_NORMAL = MTD_OTP_OFF, 167 MTD_FILE_MODE_OTP_FACTORY = MTD_OTP_FACTORY, 168 MTD_FILE_MODE_OTP_USER = MTD_OTP_USER, 169 MTD_FILE_MODE_RAW, 170 }; 171 #endif 172