149 lines
5.3 KiB
C
149 lines
5.3 KiB
C
/* $Header: /sys/linux-0.97/include/sys/RCS/mtio.h,v 0.4 1992/08/10 21:17:14 root Exp root $
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*
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* sys/mtio.h header file for Linux. Written by H. Bergman
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*/
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#ifndef _SYS_MTIO_H
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#define _SYS_MTIO_H
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#ifndef _LINUX_TYPES_H
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#include <linux/types.h> /* need daddr_t */
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#endif
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#ifndef _SYS_IOCTL_H
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#include <sys/ioctl.h>
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#endif
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/*
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* Structures and definitions for mag tape io control commands
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*/
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/* structure for MTIOCTOP - mag tape op command */
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struct mtop {
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short mt_op; /* operations defined below */
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int mt_count; /* how many of them */
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};
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/* Magnetic Tape operations [Not all operations supported by all drivers]: */
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#define MTRESET 0 /* +reset drive in case of problems */
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#define MTFSF 1 /* forward space over FileMark,
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* position at first record of next file
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*/
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#define MTBSF 2 /* backward space FileMark (position before FM) */
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#define MTFSR 3 /* forward space record */
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#define MTBSR 4 /* backward space record */
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#define MTWEOF 5 /* write an end-of-file record (mark) */
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#define MTREW 6 /* rewind */
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#define MTOFFL 7 /* rewind and put the drive offline (eject?) */
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#define MTNOP 8 /* no op, set status only (read with MTIOCGET) */
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#define MTRETEN 9 /* retension tape */
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#define MTBSFM 10 /* +backward space FileMark, position at FM */
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#define MTFSFM 11 /* +forward space FileMark, position at FM */
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#define MTEOM 12 /* +goto end of recorded media (for appending files).
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* An EOM is 2 FMs. MTEOM positions at the last FM,
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* ready for appending another file, overwriting the
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* last FM.
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*/
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#define MTERASE 13 /* erase tape -- be careful! */
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#define MTRAS1 14 /* run self test 1 (nondestructive) */
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#define MTRAS2 15 /* run self test 2 (destructive) */
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#define MTRAS3 16 /* reserved for self test 3 */
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/* may need to add
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#define MTFORMAT
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* or something similar for QIC-40/80 type tapes.
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*/
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/* structure for MTIOCGET - mag tape get status command */
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struct mtget {
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long mt_type; /* type of magtape device */
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long mt_resid; /* residual count: (not sure)
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* number of bytes ignored, or
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* number of files not skipped, or
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* number of records not skipped.
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*/
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/* the following registers are device dependent */
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long mt_dsreg; /* status register */
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long mt_gstat; /* generic (device independent) status */
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long mt_erreg; /* error register */
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daddr_t mt_fileno; /* for block devices -- not used */
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daddr_t mt_blkno; /* for block devices -- not used */
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};
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/*
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* Constants for mt_type. Not all of these are supported.
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*/
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#define MT_ISUNKNOWN 0x01
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#define MT_ISQIC02 0x02 /* Generic QIC-02 tape streamer */
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#define MT_ISWT5150 0x02 /* Wangtek 5150EQ, QIC-150, QIC-02 */
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#define MT_ISARCHIVE_5945L2 0x03 /* Archive 5945L-2, QIC-24, QIC-02? */
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#define MT_ISCMSJ500 0x04 /* CMS Jumbo 500 (QIC-02?) */
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#define MT_ISTDC3610 0x05 /* Tandberg 6310, QIC-24 */
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#define MT_ISARCHIVE_VP60I 0x06 /* Archive VP60i, QIC-02 */
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#define MT_ISWT5099EEN24 0x11 /* Wangtek 5099-een24, 60MB, QIC-24 */
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#define MT_ISEVEREX_FT40A 0x22 /* Everex FT40A (QIC-40) */
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#define MT_ISDDS1 0x31 /* DDS device without partitions */
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#define MT_ISDDS2 0x32 /* DDS device with partitions */
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#define MT_ISSCSI1 0x41 /* Generic ANSI SCSI-1 tape unit */
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struct mt_tape_info {
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long t_type; /* device type id (mt_type) */
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char *t_name; /* descriptive name */
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};
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#define MT_TAPE_INFO { \
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{MT_ISUNKNOWN, "Unknown type of tape device"}, \
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{MT_ISQIC02, "Generic QIC-02 tape streamer"}, \
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{MT_ISWT5150, "Wangtek 5150, QIC-150"}, \
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{MT_ISARCHIVE_5945L2, "Archive 5945L-2"}, \
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{MT_ISCMSJ500, "CMS Jumbo 500"}, \
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{MT_ISTDC3610, "Tandberg TDC 3610, QIC-24"}, \
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{MT_ISARCHIVE_VP60I, "Archive VP60i, QIC-02"}, \
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{MT_ISWT5099EEN24, "Wangtek 5099-een24, 60MB"}, \
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{MT_ISEVEREX_FT40A, "Everex FT40A, QIC-40"}, \
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{MT_ISSCSI1, "Generic SCSI-1 tape"}, \
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{0, NULL} \
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}
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/* mag tape io control commands */
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#define MTIOCTOP _IOW('m', 1, struct mtop) /* do a mag tape op */
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#define MTIOCGET _IOR('m', 2, struct mtget) /* get tape status */
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/* Generic Mag Tape (device independent) status macros for examining
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* mt_gstat -- HP-UX compatible.
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* There is room for more generic status bits here, but I don't
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* know which of them are reserved. At least three or so should
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* be added to make this really useful.
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*/
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#define GMT_EOF(x) ((x) & 0x80000000)
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#define GMT_BOT(x) ((x) & 0x40000000)
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#define GMT_EOT(x) ((x) & 0x20000000)
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#define GMT_SM(x) ((x) & 0x10000000) /* DDS setmark */
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#define GMT_EOD(x) ((x) & 0x08000000) /* DDS EOD */
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#define GMT_WR_PROT(x) ((x) & 0x04000000)
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/* #define GMT_ ? ((x) & 0x02000000) */
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#define GMT_ONLINE(x) ((x) & 0x01000000)
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#define GMT_D_6250(x) ((x) & 0x00800000)
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#define GMT_D_1600(x) ((x) & 0x00400000)
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#define GMT_D_800(x) ((x) & 0x00200000)
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/* #define GMT_ ? ((x) & 0x00100000) */
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/* #define GMT_ ? ((x) & 0x00080000) */
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#define GMT_DR_OPEN(x) ((x) & 0x00040000) /* door open (no tape) */
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/* #define GMT_ ? ((x) & 0x00020000) */
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#define GMT_IM_REP_EN(x) ((x) & 0x00010000) /* immediate report mode */
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/* 16 generic status bits unused */
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/* DDS drives have 'setmarks', sort of like filemarks but used to group
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* files, rather than blocks. Not used. Not supported.
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* I think DDS drives are DAT drives.
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*/
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#ifndef DEFTAPE
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#define DEFTAPE "/dev/tape" /* default tape device */
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#endif /* DEFTAPE */
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#endif /* not _SYS_MTIO_H */
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