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      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 __user * 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 #define MTD_ABSENT 0
     56 #define MTD_RAM 1
     57 #define MTD_ROM 2
     58 #define MTD_NORFLASH 3
     59 #define MTD_NANDFLASH 4
     60 #define MTD_DATAFLASH 6
     61 #define MTD_UBIVOLUME 7
     62 #define MTD_MLCNANDFLASH 8
     63 #define MTD_WRITEABLE 0x400
     64 #define MTD_BIT_WRITEABLE 0x800
     65 #define MTD_NO_ERASE 0x1000
     66 #define MTD_POWERUP_LOCK 0x2000
     67 #define MTD_CAP_ROM 0
     68 #define MTD_CAP_RAM (MTD_WRITEABLE | MTD_BIT_WRITEABLE | MTD_NO_ERASE)
     69 #define MTD_CAP_NORFLASH (MTD_WRITEABLE | MTD_BIT_WRITEABLE)
     70 #define MTD_CAP_NANDFLASH (MTD_WRITEABLE)
     71 #define MTD_CAP_NVRAM (MTD_WRITEABLE | MTD_BIT_WRITEABLE | MTD_NO_ERASE)
     72 #define MTD_NANDECC_OFF 0
     73 #define MTD_NANDECC_PLACE 1
     74 #define MTD_NANDECC_AUTOPLACE 2
     75 #define MTD_NANDECC_PLACEONLY 3
     76 #define MTD_NANDECC_AUTOPL_USR 4
     77 #define MTD_OTP_OFF 0
     78 #define MTD_OTP_FACTORY 1
     79 #define MTD_OTP_USER 2
     80 struct mtd_info_user {
     81   __u8 type;
     82   __u32 flags;
     83   __u32 size;
     84   __u32 erasesize;
     85   __u32 writesize;
     86   __u32 oobsize;
     87   __u64 padding;
     88 };
     89 struct region_info_user {
     90   __u32 offset;
     91   __u32 erasesize;
     92   __u32 numblocks;
     93   __u32 regionindex;
     94 };
     95 struct otp_info {
     96   __u32 start;
     97   __u32 length;
     98   __u32 locked;
     99 };
    100 #define MEMGETINFO _IOR('M', 1, struct mtd_info_user)
    101 #define MEMERASE _IOW('M', 2, struct erase_info_user)
    102 #define MEMWRITEOOB _IOWR('M', 3, struct mtd_oob_buf)
    103 #define MEMREADOOB _IOWR('M', 4, struct mtd_oob_buf)
    104 #define MEMLOCK _IOW('M', 5, struct erase_info_user)
    105 #define MEMUNLOCK _IOW('M', 6, struct erase_info_user)
    106 #define MEMGETREGIONCOUNT _IOR('M', 7, int)
    107 #define MEMGETREGIONINFO _IOWR('M', 8, struct region_info_user)
    108 #define MEMGETOOBSEL _IOR('M', 10, struct nand_oobinfo)
    109 #define MEMGETBADBLOCK _IOW('M', 11, __kernel_loff_t)
    110 #define MEMSETBADBLOCK _IOW('M', 12, __kernel_loff_t)
    111 #define OTPSELECT _IOR('M', 13, int)
    112 #define OTPGETREGIONCOUNT _IOW('M', 14, int)
    113 #define OTPGETREGIONINFO _IOW('M', 15, struct otp_info)
    114 #define OTPLOCK _IOR('M', 16, struct otp_info)
    115 #define ECCGETLAYOUT _IOR('M', 17, struct nand_ecclayout_user)
    116 #define ECCGETSTATS _IOR('M', 18, struct mtd_ecc_stats)
    117 #define MTDFILEMODE _IO('M', 19)
    118 #define MEMERASE64 _IOW('M', 20, struct erase_info_user64)
    119 #define MEMWRITEOOB64 _IOWR('M', 21, struct mtd_oob_buf64)
    120 #define MEMREADOOB64 _IOWR('M', 22, struct mtd_oob_buf64)
    121 #define MEMISLOCKED _IOR('M', 23, struct erase_info_user)
    122 #define MEMWRITE _IOWR('M', 24, struct mtd_write_req)
    123 struct nand_oobinfo {
    124   __u32 useecc;
    125   __u32 eccbytes;
    126   __u32 oobfree[8][2];
    127   __u32 eccpos[32];
    128 };
    129 struct nand_oobfree {
    130   __u32 offset;
    131   __u32 length;
    132 };
    133 #define MTD_MAX_OOBFREE_ENTRIES 8
    134 #define MTD_MAX_ECCPOS_ENTRIES 64
    135 struct nand_ecclayout_user {
    136   __u32 eccbytes;
    137   __u32 eccpos[MTD_MAX_ECCPOS_ENTRIES];
    138   __u32 oobavail;
    139   struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES];
    140 };
    141 struct mtd_ecc_stats {
    142   __u32 corrected;
    143   __u32 failed;
    144   __u32 badblocks;
    145   __u32 bbtblocks;
    146 };
    147 enum mtd_file_modes {
    148   MTD_FILE_MODE_NORMAL = MTD_OTP_OFF,
    149   MTD_FILE_MODE_OTP_FACTORY = MTD_OTP_FACTORY,
    150   MTD_FILE_MODE_OTP_USER = MTD_OTP_USER,
    151   MTD_FILE_MODE_RAW,
    152 };
    153 #endif
    154