1 files changed, 351 insertions, 0 deletions

diff --git a/include/linux/mtio.h b/include/linux/mtio.h
new file mode 100644
index 000000000000..8c66151821e3
--- /dev/null
+++ b/include/linux/mtio.h
@@ -0,0 +1,351 @@
+/* 
+ * linux/mtio.h header file for Linux. Written by H. Bergman
+ *
+ * Modified for special ioctls provided by zftape in September 1997
+ * by C.-J. Heine.
+ */
+
+#ifndef _LINUX_MTIO_H
+#define _LINUX_MTIO_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+#include <linux/qic117.h>
+
+/*
+ * Structures and definitions for mag tape io control commands
+ */
+
+/* structure for MTIOCTOP - mag tape op command */
+struct  mtop {
+        short   mt_op;          /* operations defined below */
+        int     mt_count;       /* how many of them */
+};
+
+/* Magnetic Tape operations [Not all operations supported by all drivers]: */
+#define MTRESET 0       /* +reset drive in case of problems */
+#define MTFSF   1       /* forward space over FileMark,
+                         * position at first record of next file 
+                         */
+#define MTBSF   2       /* backward space FileMark (position before FM) */
+#define MTFSR   3       /* forward space record */
+#define MTBSR   4       /* backward space record */
+#define MTWEOF  5       /* write an end-of-file record (mark) */
+#define MTREW   6       /* rewind */
+#define MTOFFL  7       /* rewind and put the drive offline (eject?) */
+#define MTNOP   8       /* no op, set status only (read with MTIOCGET) */
+#define MTRETEN 9       /* retension tape */
+#define MTBSFM  10      /* +backward space FileMark, position at FM */
+#define MTFSFM  11      /* +forward space FileMark, position at FM */
+#define MTEOM   12      /* goto end of recorded media (for appending files).
+                         * MTEOM positions after the last FM, ready for
+                         * appending another file.
+                         */
+#define MTERASE 13      /* erase tape -- be careful! */
+
+#define MTRAS1  14      /* run self test 1 (nondestructive) */
+#define MTRAS2  15      /* run self test 2 (destructive) */
+#define MTRAS3  16      /* reserved for self test 3 */
+
+#define MTSETBLK 20     /* set block length (SCSI) */
+#define MTSETDENSITY 21 /* set tape density (SCSI) */
+#define MTSEEK  22      /* seek to block (Tandberg, etc.) */
+#define MTTELL  23      /* tell block (Tandberg, etc.) */
+#define MTSETDRVBUFFER 24 /* set the drive buffering according to SCSI-2 */
+                        /* ordinary buffered operation with code 1 */
+#define MTFSS   25      /* space forward over setmarks */
+#define MTBSS   26      /* space backward over setmarks */
+#define MTWSM   27      /* write setmarks */
+
+#define MTLOCK  28      /* lock the drive door */
+#define MTUNLOCK 29     /* unlock the drive door */
+#define MTLOAD  30      /* execute the SCSI load command */
+#define MTUNLOAD 31     /* execute the SCSI unload command */
+#define MTCOMPRESSION 32/* control compression with SCSI mode page 15 */
+#define MTSETPART 33    /* Change the active tape partition */
+#define MTMKPART  34    /* Format the tape with one or two partitions */
+
+/* structure for MTIOCGET - mag tape get status command */
+
+struct  mtget {
+        long    mt_type;        /* type of magtape device */
+        long    mt_resid;       /* residual count: (not sure)
+                                 *      number of bytes ignored, or
+                                 *      number of files not skipped, or
+                                 *      number of records not skipped.
+                                 */
+        /* the following registers are device dependent */
+        long    mt_dsreg;       /* status register */
+        long    mt_gstat;       /* generic (device independent) status */
+        long    mt_erreg;       /* error register */
+        /* The next two fields are not always used */
+        __kernel_daddr_t mt_fileno;     /* number of current file on tape */
+        __kernel_daddr_t mt_blkno;      /* current block number */
+};
+
+
+
+/*
+ * Constants for mt_type. Not all of these are supported,
+ * and these are not all of the ones that are supported.
+ */
+#define MT_ISUNKNOWN            0x01
+#define MT_ISQIC02              0x02    /* Generic QIC-02 tape streamer */
+#define MT_ISWT5150             0x03    /* Wangtek 5150EQ, QIC-150, QIC-02 */
+#define MT_ISARCHIVE_5945L2     0x04    /* Archive 5945L-2, QIC-24, QIC-02? */
+#define MT_ISCMSJ500            0x05    /* CMS Jumbo 500 (QIC-02?) */
+#define MT_ISTDC3610            0x06    /* Tandberg 6310, QIC-24 */
+#define MT_ISARCHIVE_VP60I      0x07    /* Archive VP60i, QIC-02 */
+#define MT_ISARCHIVE_2150L      0x08    /* Archive Viper 2150L */
+#define MT_ISARCHIVE_2060L      0x09    /* Archive Viper 2060L */
+#define MT_ISARCHIVESC499       0x0A    /* Archive SC-499 QIC-36 controller */
+#define MT_ISQIC02_ALL_FEATURES 0x0F    /* Generic QIC-02 with all features */
+#define MT_ISWT5099EEN24        0x11    /* Wangtek 5099-een24, 60MB, QIC-24 */
+#define MT_ISTEAC_MT2ST         0x12    /* Teac MT-2ST 155mb drive, Teac DC-1 card (Wangtek type) */
+#define MT_ISEVEREX_FT40A       0x32    /* Everex FT40A (QIC-40) */
+#define MT_ISDDS1               0x51    /* DDS device without partitions */
+#define MT_ISDDS2               0x52    /* DDS device with partitions */
+#define MT_ISONSTREAM_SC        0x61   /* OnStream SCSI tape drives (SC-x0)
+                                          and SCSI emulated (DI, DP, USB) */
+#define MT_ISSCSI1              0x71    /* Generic ANSI SCSI-1 tape unit */
+#define MT_ISSCSI2              0x72    /* Generic ANSI SCSI-2 tape unit */
+
+/* QIC-40/80/3010/3020 ftape supported drives.
+ * 20bit vendor ID + 0x800000 (see ftape-vendors.h)
+ */
+#define MT_ISFTAPE_UNKNOWN      0x800000 /* obsolete */
+#define MT_ISFTAPE_FLAG 0x800000
+
+struct mt_tape_info {
+        long t_type;            /* device type id (mt_type) */
+        char *t_name;           /* descriptive name */
+};
+
+#define MT_TAPE_INFO    { \
+        {MT_ISUNKNOWN,          "Unknown type of tape device"}, \
+        {MT_ISQIC02,            "Generic QIC-02 tape streamer"}, \
+        {MT_ISWT5150,           "Wangtek 5150, QIC-150"}, \
+        {MT_ISARCHIVE_5945L2,   "Archive 5945L-2"}, \
+        {MT_ISCMSJ500,          "CMS Jumbo 500"}, \
+        {MT_ISTDC3610,          "Tandberg TDC 3610, QIC-24"}, \
+        {MT_ISARCHIVE_VP60I,    "Archive VP60i, QIC-02"}, \
+        {MT_ISARCHIVE_2150L,    "Archive Viper 2150L"}, \
+        {MT_ISARCHIVE_2060L,    "Archive Viper 2060L"}, \
+        {MT_ISARCHIVESC499,     "Archive SC-499 QIC-36 controller"}, \
+        {MT_ISQIC02_ALL_FEATURES, "Generic QIC-02 tape, all features"}, \
+        {MT_ISWT5099EEN24,      "Wangtek 5099-een24, 60MB"}, \
+        {MT_ISTEAC_MT2ST,       "Teac MT-2ST 155mb data cassette drive"}, \
+        {MT_ISEVEREX_FT40A,     "Everex FT40A, QIC-40"}, \
+        {MT_ISONSTREAM_SC,      "OnStream SC-, DI-, DP-, or USB tape drive"}, \
+        {MT_ISSCSI1,            "Generic SCSI-1 tape"}, \
+        {MT_ISSCSI2,            "Generic SCSI-2 tape"}, \
+        {0, NULL} \
+}
+
+
+/* structure for MTIOCPOS - mag tape get position command */
+
+struct  mtpos {
+        long    mt_blkno;       /* current block number */
+};
+
+
+/*  structure for MTIOCVOLINFO, query information about the volume
+ *  currently positioned at (zftape)
+ */
+struct mtvolinfo {
+        unsigned int mt_volno;   /* vol-number */
+        unsigned int mt_blksz;   /* blocksize used when recording */
+        unsigned int mt_rawsize; /* raw tape space consumed, in kb */
+        unsigned int mt_size;    /* volume size after decompression, in kb */
+        unsigned int mt_cmpr:1;  /* this volume has been compressed */
+};
+
+/* raw access to a floppy drive, read and write an arbitrary segment.
+ * For ftape/zftape to support formatting etc.
+ */
+#define MT_FT_RD_SINGLE  0
+#define MT_FT_RD_AHEAD   1
+#define MT_FT_WR_ASYNC   0 /* start tape only when all buffers are full     */
+#define MT_FT_WR_MULTI   1 /* start tape, continue until buffers are empty  */
+#define MT_FT_WR_SINGLE  2 /* write a single segment and stop afterwards    */
+#define MT_FT_WR_DELETE  3 /* write deleted data marks, one segment at time */
+
+struct mtftseg
+{            
+        unsigned mt_segno;   /* the segment to read or write */
+        unsigned mt_mode;    /* modes for read/write (sync/async etc.) */
+        int      mt_result;  /* result of r/w request, not of the ioctl */
+        void    __user *mt_data;    /* User space buffer: must be 29kb */
+};
+
+/* get tape capacity (ftape/zftape)
+ */
+struct mttapesize {
+        unsigned long mt_capacity; /* entire, uncompressed capacity 
+                                    * of a cartridge
+                                    */
+        unsigned long mt_used;     /* what has been used so far, raw 
+                                    * uncompressed amount
+                                    */
+};
+
+/*  possible values of the ftfmt_op field
+ */
+#define FTFMT_SET_PARMS         1 /* set software parms */
+#define FTFMT_GET_PARMS         2 /* get software parms */
+#define FTFMT_FORMAT_TRACK      3 /* start formatting a tape track   */
+#define FTFMT_STATUS            4 /* monitor formatting a tape track */
+#define FTFMT_VERIFY            5 /* verify the given segment        */
+
+struct ftfmtparms {
+        unsigned char  ft_qicstd;   /* QIC-40/QIC-80/QIC-3010/QIC-3020 */
+        unsigned char  ft_fmtcode;  /* Refer to the QIC specs */
+        unsigned char  ft_fhm;      /* floppy head max */
+        unsigned char  ft_ftm;      /* floppy track max */
+        unsigned short ft_spt;      /* segments per track */
+        unsigned short ft_tpc;      /* tracks per cartridge */
+};
+
+struct ftfmttrack {
+        unsigned int  ft_track;   /* track to format */
+        unsigned char ft_gap3;    /* size of gap3, for FORMAT_TRK */
+};
+
+struct ftfmtstatus {
+        unsigned int  ft_segment;  /* segment currently being formatted */
+};
+
+struct ftfmtverify {
+        unsigned int  ft_segment;   /* segment to verify */
+        unsigned long ft_bsm;       /* bsm as result of VERIFY cmd */
+};
+
+struct mtftformat {
+        unsigned int fmt_op;      /* operation to perform */
+        union fmt_arg {
+                struct ftfmtparms  fmt_parms;  /* format parameters */
+                struct ftfmttrack  fmt_track;  /* ctrl while formatting */
+                struct ftfmtstatus fmt_status;
+                struct ftfmtverify fmt_verify; /* for verifying */ 
+        } fmt_arg;
+};
+
+struct mtftcmd {
+        unsigned int ft_wait_before; /* timeout to wait for drive to get ready 
+                                      * before command is sent. Milliseconds
+                                      */
+        qic117_cmd_t ft_cmd;         /* command to send */
+        unsigned char ft_parm_cnt;   /* zero: no parm is sent. */
+        unsigned char ft_parms[3];   /* parameter(s) to send to
+                                      * the drive. The parms are nibbles
+                                      * driver sends cmd + 2 step pulses */
+        unsigned int ft_result_bits; /* if non zero, number of bits
+                                      * returned by the tape drive
+                                      */
+        unsigned int ft_result;      /* the result returned by the tape drive*/
+        unsigned int ft_wait_after;  /* timeout to wait for drive to get ready
+                                      * after command is sent. 0: don't wait */
+        int ft_status;               /* status returned by ready wait
+                                      * undefined if timeout was 0.
+                                      */
+        int ft_error;                /* error code if error status was set by 
+                                      * command
+                                      */
+};
+
+/* mag tape io control commands */
+#define MTIOCTOP        _IOW('m', 1, struct mtop)       /* do a mag tape op */
+#define MTIOCGET        _IOR('m', 2, struct mtget)      /* get tape status */
+#define MTIOCPOS        _IOR('m', 3, struct mtpos)      /* get tape position */
+
+/* The next two are used by the QIC-02 driver for runtime reconfiguration.
+ * See tpqic02.h for struct mtconfiginfo.
+ */
+#define MTIOCGETCONFIG  _IOR('m', 4, struct mtconfiginfo) /* get tape config */
+#define MTIOCSETCONFIG  _IOW('m', 5, struct mtconfiginfo) /* set tape config */
+
+/* the next six are used by the floppy ftape drivers and its frontends
+ * sorry, but MTIOCTOP commands are write only.
+ */
+#define MTIOCRDFTSEG    _IOWR('m', 6, struct mtftseg)  /* read a segment */
+#define MTIOCWRFTSEG    _IOWR('m', 7, struct mtftseg)   /* write a segment */
+#define MTIOCVOLINFO    _IOR('m',  8, struct mtvolinfo) /* info about volume */
+#define MTIOCGETSIZE    _IOR('m',  9, struct mttapesize)/* get cartridge size*/
+#define MTIOCFTFORMAT   _IOWR('m', 10, struct mtftformat) /* format ftape */
+#define MTIOCFTCMD      _IOWR('m', 11, struct mtftcmd) /* send QIC-117 cmd */
+
+/* Generic Mag Tape (device independent) status macros for examining
+ * mt_gstat -- HP-UX compatible.
+ * There is room for more generic status bits here, but I don't
+ * know which of them are reserved. At least three or so should
+ * be added to make this really useful.
+ */
+#define GMT_EOF(x)              ((x) & 0x80000000)
+#define GMT_BOT(x)              ((x) & 0x40000000)
+#define GMT_EOT(x)              ((x) & 0x20000000)
+#define GMT_SM(x)               ((x) & 0x10000000)  /* DDS setmark */
+#define GMT_EOD(x)              ((x) & 0x08000000)  /* DDS EOD */
+#define GMT_WR_PROT(x)          ((x) & 0x04000000)
+/* #define GMT_ ?               ((x) & 0x02000000) */
+#define GMT_ONLINE(x)           ((x) & 0x01000000)
+#define GMT_D_6250(x)           ((x) & 0x00800000)
+#define GMT_D_1600(x)           ((x) & 0x00400000)
+#define GMT_D_800(x)            ((x) & 0x00200000)
+/* #define GMT_ ?               ((x) & 0x00100000) */
+/* #define GMT_ ?               ((x) & 0x00080000) */
+#define GMT_DR_OPEN(x)          ((x) & 0x00040000)  /* door open (no tape) */
+/* #define GMT_ ?               ((x) & 0x00020000) */
+#define GMT_IM_REP_EN(x)        ((x) & 0x00010000)  /* immediate report mode */
+#define GMT_CLN(x)              ((x) & 0x00008000)  /* cleaning requested */
+/* 15 generic status bits unused */
+
+
+/* SCSI-tape specific definitions */
+/* Bitfield shifts in the status  */
+#define MT_ST_BLKSIZE_SHIFT     0
+#define MT_ST_BLKSIZE_MASK      0xffffff
+#define MT_ST_DENSITY_SHIFT     24
+#define MT_ST_DENSITY_MASK      0xff000000
+
+#define MT_ST_SOFTERR_SHIFT     0
+#define MT_ST_SOFTERR_MASK      0xffff
+
+/* Bitfields for the MTSETDRVBUFFER ioctl */
+#define MT_ST_OPTIONS           0xf0000000
+#define MT_ST_BOOLEANS          0x10000000
+#define MT_ST_SETBOOLEANS       0x30000000
+#define MT_ST_CLEARBOOLEANS     0x40000000
+#define MT_ST_WRITE_THRESHOLD   0x20000000
+#define MT_ST_DEF_BLKSIZE       0x50000000
+#define MT_ST_DEF_OPTIONS       0x60000000
+#define MT_ST_TIMEOUTS          0x70000000
+#define MT_ST_SET_TIMEOUT       (MT_ST_TIMEOUTS | 0x000000)
+#define MT_ST_SET_LONG_TIMEOUT  (MT_ST_TIMEOUTS | 0x100000)
+#define MT_ST_SET_CLN           0x80000000
+
+#define MT_ST_BUFFER_WRITES     0x1
+#define MT_ST_ASYNC_WRITES      0x2
+#define MT_ST_READ_AHEAD        0x4
+#define MT_ST_DEBUGGING         0x8
+#define MT_ST_TWO_FM            0x10
+#define MT_ST_FAST_MTEOM        0x20
+#define MT_ST_AUTO_LOCK         0x40
+#define MT_ST_DEF_WRITES        0x80
+#define MT_ST_CAN_BSR           0x100
+#define MT_ST_NO_BLKLIMS        0x200
+#define MT_ST_CAN_PARTITIONS    0x400
+#define MT_ST_SCSI2LOGICAL      0x800
+#define MT_ST_SYSV              0x1000
+#define MT_ST_NOWAIT            0x2000
+
+/* The mode parameters to be controlled. Parameter chosen with bits 20-28 */
+#define MT_ST_CLEAR_DEFAULT     0xfffff
+#define MT_ST_DEF_DENSITY       (MT_ST_DEF_OPTIONS | 0x100000)
+#define MT_ST_DEF_COMPRESSION   (MT_ST_DEF_OPTIONS | 0x200000)
+#define MT_ST_DEF_DRVBUFFER     (MT_ST_DEF_OPTIONS | 0x300000)
+
+/* The offset for the arguments for the special HP changer load command. */
+#define MT_ST_HPLOADER_OFFSET 10000
+
+#endif /* _LINUX_MTIO_H */