root/include/linux/mtio.h

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INCLUDED FROM


   1 /* 
   2  * linux/mtio.h header file for Linux. Written by H. Bergman
   3  */
   4 
   5 #ifndef _LINUX_MTIO_H
   6 #define _LINUX_MTIO_H
   7 
   8 #include <linux/ioctl.h>
   9 
  10 /*
  11  * Structures and definitions for mag tape io control commands
  12  */
  13 
  14 /* structure for MTIOCTOP - mag tape op command */
  15 struct  mtop {
  16         short   mt_op;          /* operations defined below */
  17         int     mt_count;       /* how many of them */
  18 };
  19 
  20 /* Magnetic Tape operations [Not all operations supported by all drivers]: */
  21 #define MTRESET 0       /* +reset drive in case of problems */
  22 #define MTFSF   1       /* forward space over FileMark,
  23                          * position at first record of next file 
  24                          */
  25 #define MTBSF   2       /* backward space FileMark (position before FM) */
  26 #define MTFSR   3       /* forward space record */
  27 #define MTBSR   4       /* backward space record */
  28 #define MTWEOF  5       /* write an end-of-file record (mark) */
  29 #define MTREW   6       /* rewind */
  30 #define MTOFFL  7       /* rewind and put the drive offline (eject?) */
  31 #define MTNOP   8       /* no op, set status only (read with MTIOCGET) */
  32 #define MTRETEN 9       /* retension tape */
  33 #define MTBSFM  10      /* +backward space FileMark, position at FM */
  34 #define MTFSFM  11      /* +forward space FileMark, position at FM */
  35 #define MTEOM   12      /* goto end of recorded media (for appending files).
  36                          * MTEOM positions after the last FM, ready for
  37                          * appending another file.
  38                          */
  39 #define MTERASE 13      /* erase tape -- be careful! */
  40 
  41 #define MTRAS1  14      /* run self test 1 (nondestructive) */
  42 #define MTRAS2  15      /* run self test 2 (destructive) */
  43 #define MTRAS3  16      /* reserved for self test 3 */
  44 
  45 #define MTSETBLK 20     /* set block length (SCSI) */
  46 #define MTSETDENSITY 21 /* set tape density (SCSI) */
  47 #define MTSEEK  22      /* seek to block (Tandberg, etc.) */
  48 #define MTTELL  23      /* tell block (Tandberg, etc.) */
  49 #define MTSETDRVBUFFER 24 /* set the drive buffering according to SCSI-2 */
  50                         /* ordinary buffered operation with code 1 */
  51 #define MTFSS   25      /* space forward over setmarks */
  52 #define MTBSS   26      /* space backward over setmarks */
  53 #define MTWSM   27      /* write setmarks */
  54 
  55 #define MTLOCK  28      /* lock the drive door */
  56 #define MTUNLOCK 29     /* unlock the drive door */
  57 #define MTLOAD  30      /* execute the SCSI load command */
  58 #define MTUNLOAD 31     /* execute the SCSI unload command */
  59 
  60 
  61 /* structure for MTIOCGET - mag tape get status command */
  62 
  63 struct  mtget {
  64         long    mt_type;        /* type of magtape device */
  65         long    mt_resid;       /* residual count: (not sure)
  66                                  *      number of bytes ignored, or
  67                                  *      number of files not skipped, or
  68                                  *      number of records not skipped.
  69                                  */
  70         /* the following registers are device dependent */
  71         long    mt_dsreg;       /* status register */
  72         long    mt_gstat;       /* generic (device independent) status */
  73         long    mt_erreg;       /* error register */
  74         /* The next two fields are not always used */
  75         daddr_t mt_fileno;      /* number of current file on tape */
  76         daddr_t mt_blkno;       /* current block number */
  77 };
  78 
  79 
  80 
  81 /*
  82  * Constants for mt_type. Not all of these are supported,
  83  * and these are not all of the ones that are supported.
  84  */
  85 #define MT_ISUNKNOWN            0x01
  86 #define MT_ISQIC02              0x02    /* Generic QIC-02 tape streamer */
  87 #define MT_ISWT5150             0x03    /* Wangtek 5150EQ, QIC-150, QIC-02 */
  88 #define MT_ISARCHIVE_5945L2     0x04    /* Archive 5945L-2, QIC-24, QIC-02? */
  89 #define MT_ISCMSJ500            0x05    /* CMS Jumbo 500 (QIC-02?) */
  90 #define MT_ISTDC3610            0x06    /* Tandberg 6310, QIC-24 */
  91 #define MT_ISARCHIVE_VP60I      0x07    /* Archive VP60i, QIC-02 */
  92 #define MT_ISARCHIVE_2150L      0x08    /* Archive Viper 2150L */
  93 #define MT_ISARCHIVE_2060L      0x09    /* Archive Viper 2060L */
  94 #define MT_ISARCHIVESC499       0x0A    /* Archive SC-499 QIC-36 controller */
  95 #define MT_ISQIC02_ALL_FEATURES 0x0F    /* Generic QIC-02 with all features */
  96 #define MT_ISWT5099EEN24        0x11    /* Wangtek 5099-een24, 60MB, QIC-24 */
  97 #define MT_ISTEAC_MT2ST         0x12    /* Teac MT-2ST 155mb drive, Teac DC-1 card (Wangtek type) */
  98 #define MT_ISEVEREX_FT40A       0x32    /* Everex FT40A (QIC-40) */
  99 #define MT_ISDDS1               0x51    /* DDS device without partitions */
 100 #define MT_ISDDS2               0x52    /* DDS device with partitions */
 101 #define MT_ISSCSI1              0x71    /* Generic ANSI SCSI-1 tape unit */
 102 #define MT_ISSCSI2              0x72    /* Generic ANSI SCSI-2 tape unit */
 103 
 104 /* QIC-40/80/3010/3020 ftape supported drives.
 105  * 20bit vendor ID + 0x800000 (see vendors.h in ftape distribution)
 106  */
 107 #define MT_ISFTAPE_UNKNOWN      0x800000 /* obsolete */
 108 #define MT_ISFTAPE_FLAG 0x800000
 109 
 110 struct mt_tape_info {
 111         long t_type;            /* device type id (mt_type) */
 112         char *t_name;           /* descriptive name */
 113 };
 114 
 115 #define MT_TAPE_INFO    { \
 116         {MT_ISUNKNOWN,          "Unknown type of tape device"}, \
 117         {MT_ISQIC02,            "Generic QIC-02 tape streamer"}, \
 118         {MT_ISWT5150,           "Wangtek 5150, QIC-150"}, \
 119         {MT_ISARCHIVE_5945L2,   "Archive 5945L-2"}, \
 120         {MT_ISCMSJ500,          "CMS Jumbo 500"}, \
 121         {MT_ISTDC3610,          "Tandberg TDC 3610, QIC-24"}, \
 122         {MT_ISARCHIVE_VP60I,    "Archive VP60i, QIC-02"}, \
 123         {MT_ISARCHIVE_2150L,    "Archive Viper 2150L"}, \
 124         {MT_ISARCHIVE_2060L,    "Archive Viper 2060L"}, \
 125         {MT_ISARCHIVESC499,     "Archive SC-499 QIC-36 controller"}, \
 126         {MT_ISQIC02_ALL_FEATURES, "Generic QIC-02 tape, all features"}, \
 127         {MT_ISWT5099EEN24,      "Wangtek 5099-een24, 60MB"}, \
 128         {MT_ISTEAC_MT2ST,       "Teac MT-2ST 155mb data cassette drive"}, \
 129         {MT_ISEVEREX_FT40A,     "Everex FT40A, QIC-40"}, \
 130         {MT_ISSCSI1,            "Generic SCSI-1 tape"}, \
 131         {MT_ISSCSI2,            "Generic SCSI-2 tape"}, \
 132         {0, NULL} \
 133 }
 134 
 135 
 136 /* structure for MTIOCPOS - mag tape get position command */
 137 
 138 struct  mtpos {
 139         long    mt_blkno;       /* current block number */
 140 };
 141 
 142 
 143 /* structure for MTIOCGETCONFIG/MTIOCSETCONFIG primarily intended
 144  * as an interim solution for QIC-02 until DDI is fully implemented.
 145  */
 146 struct mtconfiginfo {
 147         long    mt_type;        /* drive type */
 148         long    ifc_type;       /* interface card type */
 149         unsigned short  irqnr;  /* IRQ number to use */
 150         unsigned short  dmanr;  /* DMA channel to use */
 151         unsigned short  port;   /* IO port base address */
 152 
 153         unsigned long   debug;  /* debugging flags */
 154 
 155         unsigned        have_dens:1;
 156         unsigned        have_bsf:1;
 157         unsigned        have_fsr:1;
 158         unsigned        have_bsr:1;
 159         unsigned        have_eod:1;
 160         unsigned        have_seek:1;
 161         unsigned        have_tell:1;
 162         unsigned        have_ras1:1;
 163         unsigned        have_ras2:1;
 164         unsigned        have_ras3:1;
 165         unsigned        have_qfa:1;
 166 
 167         unsigned        pad1:5;
 168         char            reserved[10];
 169 };
 170 
 171 
 172 /* mag tape io control commands */
 173 #define MTIOCTOP        _IOW('m', 1, struct mtop)       /* do a mag tape op */
 174 #define MTIOCGET        _IOR('m', 2, struct mtget)      /* get tape status */
 175 #define MTIOCPOS        _IOR('m', 3, struct mtpos)      /* get tape position */
 176 
 177 /* The next two are used by the QIC-02 driver for runtime reconfiguration.
 178  * See tpqic02.h for struct mtconfiginfo.
 179  */
 180 #define MTIOCGETCONFIG  _IOR('m', 4, struct mtconfiginfo) /* get tape config */
 181 #define MTIOCSETCONFIG  _IOW('m', 5, struct mtconfiginfo) /* set tape config */
 182 
 183 
 184 /* Generic Mag Tape (device independent) status macros for examining
 185  * mt_gstat -- HP-UX compatible.
 186  * There is room for more generic status bits here, but I don't
 187  * know which of them are reserved. At least three or so should
 188  * be added to make this really useful.
 189  */
 190 #define GMT_EOF(x)              ((x) & 0x80000000)
 191 #define GMT_BOT(x)              ((x) & 0x40000000)
 192 #define GMT_EOT(x)              ((x) & 0x20000000)
 193 #define GMT_SM(x)               ((x) & 0x10000000)  /* DDS setmark */
 194 #define GMT_EOD(x)              ((x) & 0x08000000)  /* DDS EOD */
 195 #define GMT_WR_PROT(x)          ((x) & 0x04000000)
 196 /* #define GMT_ ?               ((x) & 0x02000000) */
 197 #define GMT_ONLINE(x)           ((x) & 0x01000000)
 198 #define GMT_D_6250(x)           ((x) & 0x00800000)
 199 #define GMT_D_1600(x)           ((x) & 0x00400000)
 200 #define GMT_D_800(x)            ((x) & 0x00200000)
 201 /* #define GMT_ ?               ((x) & 0x00100000) */
 202 /* #define GMT_ ?               ((x) & 0x00080000) */
 203 #define GMT_DR_OPEN(x)          ((x) & 0x00040000)  /* door open (no tape) */
 204 /* #define GMT_ ?               ((x) & 0x00020000) */
 205 #define GMT_IM_REP_EN(x)        ((x) & 0x00010000)  /* immediate report mode */
 206 /* 16 generic status bits unused */
 207 
 208 /* DDS drives have 'setmarks', sort of like filemarks but used to group
 209  * files, rather than blocks. Not used. Not supported.
 210  * I think DDS drives are DAT drives.
 211  */
 212 
 213 /* SCSI-tape specific definitions */
 214 #define MT_ST_BLKSIZE_SHIFT     0
 215 #define MT_ST_BLKSIZE_MASK      0xffffff
 216 #define MT_ST_DENSITY_SHIFT     24
 217 #define MT_ST_DENSITY_MASK      0xff000000
 218 
 219 #define MT_ST_SOFTERR_SHIFT     0
 220 #define MT_ST_SOFTERR_MASK      0xffff
 221 
 222 #define MT_ST_OPTIONS           0xf0000000
 223 #define MT_ST_BOOLEANS          0x10000000
 224 #define MT_ST_WRITE_THRESHOLD   0x20000000
 225 #define MT_ST_BUFFER_WRITES     0x1
 226 #define MT_ST_ASYNC_WRITES      0x2
 227 #define MT_ST_READ_AHEAD        0x4
 228 #define MT_ST_DEBUGGING         0x8
 229 #define MT_ST_TWO_FM            0x10
 230 #define MT_ST_FAST_MTEOM        0x20
 231 #define MT_ST_AUTO_LOCK         0x40
 232 
 233 #endif /* _LINUX_MTIO_H */

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