Added missing tegra files.HEADmaster

6 files changed, 823 insertions, 0 deletions

diff --git a/include/mtd/Kbuild b/include/mtd/Kbuild
new file mode 100644
index 00000000000..192f8fb7d54
--- /dev/null
+++ b/include/mtd/Kbuild
@@ -0,0 +1,5 @@
+header-y += inftl-user.h
+header-y += mtd-abi.h
+header-y += mtd-user.h
+header-y += nftl-user.h
+header-y += ubi-user.h
diff --git a/include/mtd/inftl-user.h b/include/mtd/inftl-user.h
new file mode 100644
index 00000000000..8376bd1a9e0
--- /dev/null
+++ b/include/mtd/inftl-user.h
@@ -0,0 +1,91 @@
+/*
+ * Parts of INFTL headers shared with userspace
+ *
+ */
+
+#ifndef __MTD_INFTL_USER_H__
+#define __MTD_INFTL_USER_H__
+
+#include <linux/types.h>
+
+#define OSAK_VERSION    0x5120
+#define PERCENTUSED     98
+
+#define SECTORSIZE      512
+
+/* Block Control Information */
+
+struct inftl_bci {
+        __u8 ECCsig[6];
+        __u8 Status;
+        __u8 Status1;
+} __attribute__((packed));
+
+struct inftl_unithead1 {
+        __u16 virtualUnitNo;
+        __u16 prevUnitNo;
+        __u8 ANAC;
+        __u8 NACs;
+        __u8 parityPerField;
+        __u8 discarded;
+} __attribute__((packed));
+
+struct inftl_unithead2 {
+        __u8 parityPerField;
+        __u8 ANAC;
+        __u16 prevUnitNo;
+        __u16 virtualUnitNo;
+        __u8 NACs;
+        __u8 discarded;
+} __attribute__((packed));
+
+struct inftl_unittail {
+        __u8 Reserved[4];
+        __u16 EraseMark;
+        __u16 EraseMark1;
+} __attribute__((packed));
+
+union inftl_uci {
+        struct inftl_unithead1 a;
+        struct inftl_unithead2 b;
+        struct inftl_unittail c;
+};
+
+struct inftl_oob {
+        struct inftl_bci b;
+        union inftl_uci u;
+};
+
+
+/* INFTL Media Header */
+
+struct INFTLPartition {
+        __u32 virtualUnits;
+        __u32 firstUnit;
+        __u32 lastUnit;
+        __u32 flags;
+        __u32 spareUnits;
+        __u32 Reserved0;
+        __u32 Reserved1;
+} __attribute__((packed));
+
+struct INFTLMediaHeader {
+        char bootRecordID[8];
+        __u32 NoOfBootImageBlocks;
+        __u32 NoOfBinaryPartitions;
+        __u32 NoOfBDTLPartitions;
+        __u32 BlockMultiplierBits;
+        __u32 FormatFlags;
+        __u32 OsakVersion;
+        __u32 PercentUsed;
+        struct INFTLPartition Partitions[4];
+} __attribute__((packed));
+
+/* Partition flag types */
+#define INFTL_BINARY    0x20000000
+#define INFTL_BDTL      0x40000000
+#define INFTL_LAST      0x80000000
+
+#endif /* __MTD_INFTL_USER_H__ */
+
+
diff --git a/include/mtd/mtd-abi.h b/include/mtd/mtd-abi.h
new file mode 100644
index 00000000000..2f7d45bcbd2
--- /dev/null
+++ b/include/mtd/mtd-abi.h
@@ -0,0 +1,189 @@
+/*
+ * Copyright © 1999-2010 David Woodhouse <dwmw2@infradead.org> et al.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifndef __MTD_ABI_H__
+#define __MTD_ABI_H__
+
+#include <linux/types.h>
+
+struct erase_info_user {
+        __u32 start;
+        __u32 length;
+};
+
+struct erase_info_user64 {
+        __u64 start;
+        __u64 length;
+};
+
+struct mtd_oob_buf {
+        __u32 start;
+        __u32 length;
+        unsigned char __user *ptr;
+};
+
+struct mtd_oob_buf64 {
+        __u64 start;
+        __u32 pad;
+        __u32 length;
+        __u64 usr_ptr;
+};
+
+#define MTD_ABSENT              0
+#define MTD_RAM                 1
+#define MTD_ROM                 2
+#define MTD_NORFLASH            3
+#define MTD_NANDFLASH           4
+#define MTD_DATAFLASH           6
+#define MTD_UBIVOLUME           7
+#define MTD_MLCNANDFLASH        8
+
+#define MTD_WRITEABLE           0x400   /* Device is writeable */
+#define MTD_BIT_WRITEABLE       0x800   /* Single bits can be flipped */
+#define MTD_NO_ERASE            0x1000  /* No erase necessary */
+#define MTD_POWERUP_LOCK        0x2000  /* Always locked after reset */
+
+// Some common devices / combinations of capabilities
+#define MTD_CAP_ROM             0
+#define MTD_CAP_RAM             (MTD_WRITEABLE | MTD_BIT_WRITEABLE | MTD_NO_ERASE)
+#define MTD_CAP_NORFLASH        (MTD_WRITEABLE | MTD_BIT_WRITEABLE)
+#define MTD_CAP_NANDFLASH       (MTD_WRITEABLE)
+
+/* ECC byte placement */
+#define MTD_NANDECC_OFF         0       // Switch off ECC (Not recommended)
+#define MTD_NANDECC_PLACE       1       // Use the given placement in the structure (YAFFS1 legacy mode)
+#define MTD_NANDECC_AUTOPLACE   2       // Use the default placement scheme
+#define MTD_NANDECC_PLACEONLY   3       // Use the given placement in the structure (Do not store ecc result on read)
+#define MTD_NANDECC_AUTOPL_USR  4       // Use the given autoplacement scheme rather than using the default
+
+/* OTP mode selection */
+#define MTD_OTP_OFF             0
+#define MTD_OTP_FACTORY         1
+#define MTD_OTP_USER            2
+
+struct mtd_info_user {
+        __u8 type;
+        __u32 flags;
+        __u32 size;      // Total size of the MTD
+        __u32 erasesize;
+        __u32 writesize;
+        __u32 oobsize;   // Amount of OOB data per block (e.g. 16)
+        /* The below two fields are obsolete and broken, do not use them
+         * (TODO: remove at some point) */
+        __u32 ecctype;
+        __u32 eccsize;
+};
+
+struct region_info_user {
+        __u32 offset;           /* At which this region starts,
+                                         * from the beginning of the MTD */
+        __u32 erasesize;                /* For this region */
+        __u32 numblocks;                /* Number of blocks in this region */
+        __u32 regionindex;
+};
+
+struct otp_info {
+        __u32 start;
+        __u32 length;
+        __u32 locked;
+};
+
+#define MEMGETINFO              _IOR('M', 1, struct mtd_info_user)
+#define MEMERASE                _IOW('M', 2, struct erase_info_user)
+#define MEMWRITEOOB             _IOWR('M', 3, struct mtd_oob_buf)
+#define MEMREADOOB              _IOWR('M', 4, struct mtd_oob_buf)
+#define MEMLOCK                 _IOW('M', 5, struct erase_info_user)
+#define MEMUNLOCK               _IOW('M', 6, struct erase_info_user)
+#define MEMGETREGIONCOUNT       _IOR('M', 7, int)
+#define MEMGETREGIONINFO        _IOWR('M', 8, struct region_info_user)
+#define MEMSETOOBSEL            _IOW('M', 9, struct nand_oobinfo)
+#define MEMGETOOBSEL            _IOR('M', 10, struct nand_oobinfo)
+#define MEMGETBADBLOCK          _IOW('M', 11, __kernel_loff_t)
+#define MEMSETBADBLOCK          _IOW('M', 12, __kernel_loff_t)
+#define OTPSELECT               _IOR('M', 13, int)
+#define OTPGETREGIONCOUNT       _IOW('M', 14, int)
+#define OTPGETREGIONINFO        _IOW('M', 15, struct otp_info)
+#define OTPLOCK                 _IOR('M', 16, struct otp_info)
+#define ECCGETLAYOUT            _IOR('M', 17, struct nand_ecclayout_user)
+#define ECCGETSTATS             _IOR('M', 18, struct mtd_ecc_stats)
+#define MTDFILEMODE             _IO('M', 19)
+#define MEMERASE64              _IOW('M', 20, struct erase_info_user64)
+#define MEMWRITEOOB64           _IOWR('M', 21, struct mtd_oob_buf64)
+#define MEMREADOOB64            _IOWR('M', 22, struct mtd_oob_buf64)
+#define MEMISLOCKED             _IOR('M', 23, struct erase_info_user)
+
+/*
+ * Obsolete legacy interface. Keep it in order not to break userspace
+ * interfaces
+ */
+struct nand_oobinfo {
+        __u32 useecc;
+        __u32 eccbytes;
+        __u32 oobfree[8][2];
+        __u32 eccpos[32];
+};
+
+struct nand_oobfree {
+        __u32 offset;
+        __u32 length;
+};
+
+#define MTD_MAX_OOBFREE_ENTRIES 8
+#define MTD_MAX_ECCPOS_ENTRIES  64
+/*
+ * OBSOLETE: ECC layout control structure. Exported to user-space via ioctl
+ * ECCGETLAYOUT for backwards compatbility and should not be mistaken as a
+ * complete set of ECC information. The ioctl truncates the larger internal
+ * structure to retain binary compatibility with the static declaration of the
+ * ioctl. Note that the "MTD_MAX_..._ENTRIES" macros represent the max size of
+ * the user struct, not the MAX size of the internal struct nand_ecclayout.
+ */
+struct nand_ecclayout_user {
+        __u32 eccbytes;
+        __u32 eccpos[MTD_MAX_ECCPOS_ENTRIES];
+        __u32 oobavail;
+        struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES];
+};
+
+/**
+ * struct mtd_ecc_stats - error correction stats
+ *
+ * @corrected:  number of corrected bits
+ * @failed:     number of uncorrectable errors
+ * @badblocks:  number of bad blocks in this partition
+ * @bbtblocks:  number of blocks reserved for bad block tables
+ */
+struct mtd_ecc_stats {
+        __u32 corrected;
+        __u32 failed;
+        __u32 badblocks;
+        __u32 bbtblocks;
+};
+
+/*
+ * Read/write file modes for access to MTD
+ */
+enum mtd_file_modes {
+        MTD_MODE_NORMAL = MTD_OTP_OFF,
+        MTD_MODE_OTP_FACTORY = MTD_OTP_FACTORY,
+        MTD_MODE_OTP_USER = MTD_OTP_USER,
+        MTD_MODE_RAW,
+};
+
+#endif /* __MTD_ABI_H__ */
diff --git a/include/mtd/mtd-user.h b/include/mtd/mtd-user.h
new file mode 100644
index 00000000000..83327c808c8
--- /dev/null
+++ b/include/mtd/mtd-user.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright © 1999-2010 David Woodhouse <dwmw2@infradead.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifndef __MTD_USER_H__
+#define __MTD_USER_H__
+
+#include <stdint.h>
+
+/* This file is blessed for inclusion by userspace */
+#include <mtd/mtd-abi.h>
+
+typedef struct mtd_info_user mtd_info_t;
+typedef struct erase_info_user erase_info_t;
+typedef struct region_info_user region_info_t;
+typedef struct nand_oobinfo nand_oobinfo_t;
+typedef struct nand_ecclayout_user nand_ecclayout_t;
+
+#endif /* __MTD_USER_H__ */
diff --git a/include/mtd/nftl-user.h b/include/mtd/nftl-user.h
new file mode 100644
index 00000000000..bdeabd86ad9
--- /dev/null
+++ b/include/mtd/nftl-user.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright © 1999-2010 David Woodhouse <dwmw2@infradead.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifndef __MTD_NFTL_USER_H__
+#define __MTD_NFTL_USER_H__
+
+#include <linux/types.h>
+
+/* Block Control Information */
+
+struct nftl_bci {
+        unsigned char ECCSig[6];
+        __u8 Status;
+        __u8 Status1;
+}__attribute__((packed));
+
+/* Unit Control Information */
+
+struct nftl_uci0 {
+        __u16 VirtUnitNum;
+        __u16 ReplUnitNum;
+        __u16 SpareVirtUnitNum;
+        __u16 SpareReplUnitNum;
+} __attribute__((packed));
+
+struct nftl_uci1 {
+        __u32 WearInfo;
+        __u16 EraseMark;
+        __u16 EraseMark1;
+} __attribute__((packed));
+
+struct nftl_uci2 {
+        __u16 FoldMark;
+        __u16 FoldMark1;
+        __u32 unused;
+} __attribute__((packed));
+
+union nftl_uci {
+        struct nftl_uci0 a;
+        struct nftl_uci1 b;
+        struct nftl_uci2 c;
+};
+
+struct nftl_oob {
+        struct nftl_bci b;
+        union nftl_uci u;
+};
+
+/* NFTL Media Header */
+
+struct NFTLMediaHeader {
+        char DataOrgID[6];
+        __u16 NumEraseUnits;
+        __u16 FirstPhysicalEUN;
+        __u32 FormattedSize;
+        unsigned char UnitSizeFactor;
+} __attribute__((packed));
+
+#define MAX_ERASE_ZONES (8192 - 512)
+
+#define ERASE_MARK 0x3c69
+#define SECTOR_FREE 0xff
+#define SECTOR_USED 0x55
+#define SECTOR_IGNORE 0x11
+#define SECTOR_DELETED 0x00
+
+#define FOLD_MARK_IN_PROGRESS 0x5555
+
+#define ZONE_GOOD 0xff
+#define ZONE_BAD_ORIGINAL 0
+#define ZONE_BAD_MARKED 7
+
+
+#endif /* __MTD_NFTL_USER_H__ */
diff --git a/include/mtd/ubi-user.h b/include/mtd/ubi-user.h
new file mode 100644
index 00000000000..3c4109777af
--- /dev/null
+++ b/include/mtd/ubi-user.h
@@ -0,0 +1,414 @@
+/*
+ * Copyright © International Business Machines Corp., 2006
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Author: Artem Bityutskiy (Битюцкий Артём)
+ */
+
+#ifndef __UBI_USER_H__
+#define __UBI_USER_H__
+
+#include <linux/types.h>
+
+/*
+ * UBI device creation (the same as MTD device attachment)
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * MTD devices may be attached using %UBI_IOCATT ioctl command of the UBI
+ * control device. The caller has to properly fill and pass
+ * &struct ubi_attach_req object - UBI will attach the MTD device specified in
+ * the request and return the newly created UBI device number as the ioctl
+ * return value.
+ *
+ * UBI device deletion (the same as MTD device detachment)
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * An UBI device maybe deleted with %UBI_IOCDET ioctl command of the UBI
+ * control device.
+ *
+ * UBI volume creation
+ * ~~~~~~~~~~~~~~~~~~~
+ *
+ * UBI volumes are created via the %UBI_IOCMKVOL ioctl command of UBI character
+ * device. A &struct ubi_mkvol_req object has to be properly filled and a
+ * pointer to it has to be passed to the ioctl.
+ *
+ * UBI volume deletion
+ * ~~~~~~~~~~~~~~~~~~~
+ *
+ * To delete a volume, the %UBI_IOCRMVOL ioctl command of the UBI character
+ * device should be used. A pointer to the 32-bit volume ID hast to be passed
+ * to the ioctl.
+ *
+ * UBI volume re-size
+ * ~~~~~~~~~~~~~~~~~~
+ *
+ * To re-size a volume, the %UBI_IOCRSVOL ioctl command of the UBI character
+ * device should be used. A &struct ubi_rsvol_req object has to be properly
+ * filled and a pointer to it has to be passed to the ioctl.
+ *
+ * UBI volumes re-name
+ * ~~~~~~~~~~~~~~~~~~~
+ *
+ * To re-name several volumes atomically at one go, the %UBI_IOCRNVOL command
+ * of the UBI character device should be used. A &struct ubi_rnvol_req object
+ * has to be properly filled and a pointer to it has to be passed to the ioctl.
+ *
+ * UBI volume update
+ * ~~~~~~~~~~~~~~~~~
+ *
+ * Volume update should be done via the %UBI_IOCVOLUP ioctl command of the
+ * corresponding UBI volume character device. A pointer to a 64-bit update
+ * size should be passed to the ioctl. After this, UBI expects user to write
+ * this number of bytes to the volume character device. The update is finished
+ * when the claimed number of bytes is passed. So, the volume update sequence
+ * is something like:
+ *
+ * fd = open("/dev/my_volume");
+ * ioctl(fd, UBI_IOCVOLUP, &image_size);
+ * write(fd, buf, image_size);
+ * close(fd);
+ *
+ * Logical eraseblock erase
+ * ~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * To erase a logical eraseblock, the %UBI_IOCEBER ioctl command of the
+ * corresponding UBI volume character device should be used. This command
+ * unmaps the requested logical eraseblock, makes sure the corresponding
+ * physical eraseblock is successfully erased, and returns.
+ *
+ * Atomic logical eraseblock change
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * Atomic logical eraseblock change operation is called using the %UBI_IOCEBCH
+ * ioctl command of the corresponding UBI volume character device. A pointer to
+ * a &struct ubi_leb_change_req object has to be passed to the ioctl. Then the
+ * user is expected to write the requested amount of bytes (similarly to what
+ * should be done in case of the "volume update" ioctl).
+ *
+ * Logical eraseblock map
+ * ~~~~~~~~~~~~~~~~~~~~~
+ *
+ * To map a logical eraseblock to a physical eraseblock, the %UBI_IOCEBMAP
+ * ioctl command should be used. A pointer to a &struct ubi_map_req object is
+ * expected to be passed. The ioctl maps the requested logical eraseblock to
+ * a physical eraseblock and returns.  Only non-mapped logical eraseblocks can
+ * be mapped. If the logical eraseblock specified in the request is already
+ * mapped to a physical eraseblock, the ioctl fails and returns error.
+ *
+ * Logical eraseblock unmap
+ * ~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * To unmap a logical eraseblock to a physical eraseblock, the %UBI_IOCEBUNMAP
+ * ioctl command should be used. The ioctl unmaps the logical eraseblocks,
+ * schedules corresponding physical eraseblock for erasure, and returns. Unlike
+ * the "LEB erase" command, it does not wait for the physical eraseblock being
+ * erased. Note, the side effect of this is that if an unclean reboot happens
+ * after the unmap ioctl returns, you may find the LEB mapped again to the same
+ * physical eraseblock after the UBI is run again.
+ *
+ * Check if logical eraseblock is mapped
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * To check if a logical eraseblock is mapped to a physical eraseblock, the
+ * %UBI_IOCEBISMAP ioctl command should be used. It returns %0 if the LEB is
+ * not mapped, and %1 if it is mapped.
+ *
+ * Set an UBI volume property
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * To set an UBI volume property the %UBI_IOCSETPROP ioctl command should be
+ * used. A pointer to a &struct ubi_set_vol_prop_req object is expected to be
+ * passed. The object describes which property should be set, and to which value
+ * it should be set.
+ */
+
+/*
+ * When a new UBI volume or UBI device is created, users may either specify the
+ * volume/device number they want to create or to let UBI automatically assign
+ * the number using these constants.
+ */
+#define UBI_VOL_NUM_AUTO (-1)
+#define UBI_DEV_NUM_AUTO (-1)
+
+/* Maximum volume name length */
+#define UBI_MAX_VOLUME_NAME 127
+
+/* ioctl commands of UBI character devices */
+
+#define UBI_IOC_MAGIC 'o'
+
+/* Create an UBI volume */
+#define UBI_IOCMKVOL _IOW(UBI_IOC_MAGIC, 0, struct ubi_mkvol_req)
+/* Remove an UBI volume */
+#define UBI_IOCRMVOL _IOW(UBI_IOC_MAGIC, 1, __s32)
+/* Re-size an UBI volume */
+#define UBI_IOCRSVOL _IOW(UBI_IOC_MAGIC, 2, struct ubi_rsvol_req)
+/* Re-name volumes */
+#define UBI_IOCRNVOL _IOW(UBI_IOC_MAGIC, 3, struct ubi_rnvol_req)
+
+/* ioctl commands of the UBI control character device */
+
+#define UBI_CTRL_IOC_MAGIC 'o'
+
+/* Attach an MTD device */
+#define UBI_IOCATT _IOW(UBI_CTRL_IOC_MAGIC, 64, struct ubi_attach_req)
+/* Detach an MTD device */
+#define UBI_IOCDET _IOW(UBI_CTRL_IOC_MAGIC, 65, __s32)
+
+/* ioctl commands of UBI volume character devices */
+
+#define UBI_VOL_IOC_MAGIC 'O'
+
+/* Start UBI volume update */
+#define UBI_IOCVOLUP _IOW(UBI_VOL_IOC_MAGIC, 0, __s64)
+/* LEB erasure command, used for debugging, disabled by default */
+#define UBI_IOCEBER _IOW(UBI_VOL_IOC_MAGIC, 1, __s32)
+/* Atomic LEB change command */
+#define UBI_IOCEBCH _IOW(UBI_VOL_IOC_MAGIC, 2, __s32)
+/* Map LEB command */
+#define UBI_IOCEBMAP _IOW(UBI_VOL_IOC_MAGIC, 3, struct ubi_map_req)
+/* Unmap LEB command */
+#define UBI_IOCEBUNMAP _IOW(UBI_VOL_IOC_MAGIC, 4, __s32)
+/* Check if LEB is mapped command */
+#define UBI_IOCEBISMAP _IOR(UBI_VOL_IOC_MAGIC, 5, __s32)
+/* Set an UBI volume property */
+#define UBI_IOCSETVOLPROP _IOW(UBI_VOL_IOC_MAGIC, 6, \
+                               struct ubi_set_vol_prop_req)
+
+/* Maximum MTD device name length supported by UBI */
+#define MAX_UBI_MTD_NAME_LEN 127
+
+/* Maximum amount of UBI volumes that can be re-named at one go */
+#define UBI_MAX_RNVOL 32
+
+/*
+ * UBI data type hint constants.
+ *
+ * UBI_LONGTERM: long-term data
+ * UBI_SHORTTERM: short-term data
+ * UBI_UNKNOWN: data persistence is unknown
+ *
+ * These constants are used when data is written to UBI volumes in order to
+ * help the UBI wear-leveling unit to find more appropriate physical
+ * eraseblocks.
+ */
+enum {
+        UBI_LONGTERM  = 1,
+        UBI_SHORTTERM = 2,
+        UBI_UNKNOWN   = 3,
+};
+
+/*
+ * UBI volume type constants.
+ *
+ * @UBI_DYNAMIC_VOLUME: dynamic volume
+ * @UBI_STATIC_VOLUME:  static volume
+ */
+enum {
+        UBI_DYNAMIC_VOLUME = 3,
+        UBI_STATIC_VOLUME  = 4,
+};
+
+/*
+ * UBI set volume property ioctl constants.
+ *
+ * @UBI_VOL_PROP_DIRECT_WRITE: allow (any non-zero value) or disallow (value 0)
+ *                             user to directly write and erase individual
+ *                             eraseblocks on dynamic volumes
+ */
+enum {
+        UBI_VOL_PROP_DIRECT_WRITE = 1,
+};
+
+/**
+ * struct ubi_attach_req - attach MTD device request.
+ * @ubi_num: UBI device number to create
+ * @mtd_num: MTD device number to attach
+ * @vid_hdr_offset: VID header offset (use defaults if %0)
+ * @padding: reserved for future, not used, has to be zeroed
+ *
+ * This data structure is used to specify MTD device UBI has to attach and the
+ * parameters it has to use. The number which should be assigned to the new UBI
+ * device is passed in @ubi_num. UBI may automatically assign the number if
+ * @UBI_DEV_NUM_AUTO is passed. In this case, the device number is returned in
+ * @ubi_num.
+ *
+ * Most applications should pass %0 in @vid_hdr_offset to make UBI use default
+ * offset of the VID header within physical eraseblocks. The default offset is
+ * the next min. I/O unit after the EC header. For example, it will be offset
+ * 512 in case of a 512 bytes page NAND flash with no sub-page support. Or
+ * it will be 512 in case of a 2KiB page NAND flash with 4 512-byte sub-pages.
+ *
+ * But in rare cases, if this optimizes things, the VID header may be placed to
+ * a different offset. For example, the boot-loader might do things faster if
+ * the VID header sits at the end of the first 2KiB NAND page with 4 sub-pages.
+ * As the boot-loader would not normally need to read EC headers (unless it
+ * needs UBI in RW mode), it might be faster to calculate ECC. This is weird
+ * example, but it real-life example. So, in this example, @vid_hdr_offer would
+ * be 2KiB-64 bytes = 1984. Note, that this position is not even 512-bytes
+ * aligned, which is OK, as UBI is clever enough to realize this is 4th
+ * sub-page of the first page and add needed padding.
+ */
+struct ubi_attach_req {
+        __s32 ubi_num;
+        __s32 mtd_num;
+        __s32 vid_hdr_offset;
+        __s8 padding[12];
+};
+
+/**
+ * struct ubi_mkvol_req - volume description data structure used in
+ *                        volume creation requests.
+ * @vol_id: volume number
+ * @alignment: volume alignment
+ * @bytes: volume size in bytes
+ * @vol_type: volume type (%UBI_DYNAMIC_VOLUME or %UBI_STATIC_VOLUME)
+ * @padding1: reserved for future, not used, has to be zeroed
+ * @name_len: volume name length
+ * @padding2: reserved for future, not used, has to be zeroed
+ * @name: volume name
+ *
+ * This structure is used by user-space programs when creating new volumes. The
+ * @used_bytes field is only necessary when creating static volumes.
+ *
+ * The @alignment field specifies the required alignment of the volume logical
+ * eraseblock. This means, that the size of logical eraseblocks will be aligned
+ * to this number, i.e.,
+ *      (UBI device logical eraseblock size) mod (@alignment) = 0.
+ *
+ * To put it differently, the logical eraseblock of this volume may be slightly
+ * shortened in order to make it properly aligned. The alignment has to be
+ * multiple of the flash minimal input/output unit, or %1 to utilize the entire
+ * available space of logical eraseblocks.
+ *
+ * The @alignment field may be useful, for example, when one wants to maintain
+ * a block device on top of an UBI volume. In this case, it is desirable to fit
+ * an integer number of blocks in logical eraseblocks of this UBI volume. With
+ * alignment it is possible to update this volume using plane UBI volume image
+ * BLOBs, without caring about how to properly align them.
+ */
+struct ubi_mkvol_req {
+        __s32 vol_id;
+        __s32 alignment;
+        __s64 bytes;
+        __s8 vol_type;
+        __s8 padding1;
+        __s16 name_len;
+        __s8 padding2[4];
+        char name[UBI_MAX_VOLUME_NAME + 1];
+} __packed;
+
+/**
+ * struct ubi_rsvol_req - a data structure used in volume re-size requests.
+ * @vol_id: ID of the volume to re-size
+ * @bytes: new size of the volume in bytes
+ *
+ * Re-sizing is possible for both dynamic and static volumes. But while dynamic
+ * volumes may be re-sized arbitrarily, static volumes cannot be made to be
+ * smaller than the number of bytes they bear. To arbitrarily shrink a static
+ * volume, it must be wiped out first (by means of volume update operation with
+ * zero number of bytes).
+ */
+struct ubi_rsvol_req {
+        __s64 bytes;
+        __s32 vol_id;
+} __packed;
+
+/**
+ * struct ubi_rnvol_req - volumes re-name request.
+ * @count: count of volumes to re-name
+ * @padding1:  reserved for future, not used, has to be zeroed
+ * @vol_id: ID of the volume to re-name
+ * @name_len: name length
+ * @padding2:  reserved for future, not used, has to be zeroed
+ * @name: new volume name
+ *
+ * UBI allows to re-name up to %32 volumes at one go. The count of volumes to
+ * re-name is specified in the @count field. The ID of the volumes to re-name
+ * and the new names are specified in the @vol_id and @name fields.
+ *
+ * The UBI volume re-name operation is atomic, which means that should power cut
+ * happen, the volumes will have either old name or new name. So the possible
+ * use-cases of this command is atomic upgrade. Indeed, to upgrade, say, volumes
+ * A and B one may create temporary volumes %A1 and %B1 with the new contents,
+ * then atomically re-name A1->A and B1->B, in which case old %A and %B will
+ * be removed.
+ *
+ * If it is not desirable to remove old A and B, the re-name request has to
+ * contain 4 entries: A1->A, A->A1, B1->B, B->B1, in which case old A1 and B1
+ * become A and B, and old A and B will become A1 and B1.
+ *
+ * It is also OK to request: A1->A, A1->X, B1->B, B->Y, in which case old A1
+ * and B1 become A and B, and old A and B become X and Y.
+ *
+ * In other words, in case of re-naming into an existing volume name, the
+ * existing volume is removed, unless it is re-named as well at the same
+ * re-name request.
+ */
+struct ubi_rnvol_req {
+        __s32 count;
+        __s8 padding1[12];
+        struct {
+                __s32 vol_id;
+                __s16 name_len;
+                __s8  padding2[2];
+                char    name[UBI_MAX_VOLUME_NAME + 1];
+        } ents[UBI_MAX_RNVOL];
+} __packed;
+
+/**
+ * struct ubi_leb_change_req - a data structure used in atomic LEB change
+ *                             requests.
+ * @lnum: logical eraseblock number to change
+ * @bytes: how many bytes will be written to the logical eraseblock
+ * @dtype: data type (%UBI_LONGTERM, %UBI_SHORTTERM, %UBI_UNKNOWN)
+ * @padding: reserved for future, not used, has to be zeroed
+ */
+struct ubi_leb_change_req {
+        __s32 lnum;
+        __s32 bytes;
+        __s8  dtype;
+        __s8  padding[7];
+} __packed;
+
+/**
+ * struct ubi_map_req - a data structure used in map LEB requests.
+ * @lnum: logical eraseblock number to unmap
+ * @dtype: data type (%UBI_LONGTERM, %UBI_SHORTTERM, %UBI_UNKNOWN)
+ * @padding: reserved for future, not used, has to be zeroed
+ */
+struct ubi_map_req {
+        __s32 lnum;
+        __s8  dtype;
+        __s8  padding[3];
+} __packed;
+
+
+/**
+ * struct ubi_set_vol_prop_req - a data structure used to set an UBI volume
+ *                               property.
+ * @property: property to set (%UBI_VOL_PROP_DIRECT_WRITE)
+ * @padding: reserved for future, not used, has to be zeroed
+ * @value: value to set
+ */
+struct ubi_set_vol_prop_req {
+        __u8  property;
+        __u8  padding[7];
+        __u64 value;
+}  __packed;
+
+#endif /* __UBI_USER_H__ */