/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * 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>
/* * 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 */ #define MTWEOFI 35/* write an end-of-file record (mark) in immediate mode */
/* 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 */
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