/* Structures and definitions for magnetic tape I/O control commands.

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Copyright (C) 1996-2018 Free Software Foundation, Inc.

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This file is part of the GNU C Library.

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The GNU C Library is free software; you can redistribute it and/or

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modify it under the terms of the GNU Lesser General Public

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License as published by the Free Software Foundation; either

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version 2.1 of the License, or (at your option) any later version.

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The GNU C Library is distributed in the hope that it will be useful,

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but WITHOUT ANY WARRANTY; without even the implied warranty of

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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

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Lesser General Public License for more details.

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You should have received a copy of the GNU Lesser General Public

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License along with the GNU C Library; if not, see

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<http://www.gnu.org/licenses/>. */

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/* Written by H. Bergman <hennus@cybercomm.nl>. */

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#ifndef _SYS_MTIO_H

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#define _SYS_MTIO_H 1

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/* Get necessary definitions from system and kernel headers. */

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#include <sys/types.h>

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#include <sys/ioctl.h>

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/* Structure for MTIOCTOP - magnetic tape operation command. */

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struct mtop

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{

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short int mt_op; /* Operations defined below. */

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int mt_count; /* How many of them. */

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};

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#define _IOT_mtop /* Hurd ioctl type field. */ \

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_IOT (_IOTS (short), 1, _IOTS (int), 1, 0, 0)

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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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#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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MTEOM positions after the last FM, ready for

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appending another file. */

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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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#define MTSETBLK 20 /* Set block length (SCSI). */

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#define MTSETDENSITY 21 /* Set tape density (SCSI). */

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#define MTSEEK 22 /* Seek to block (Tandberg, etc.). */

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#define MTTELL 23 /* Tell block (Tandberg, etc.). */

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#define MTSETDRVBUFFER 24 /* Set the drive buffering according to SCSI-2.

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Ordinary buffered operation with code 1. */

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#define MTFSS 25 /* Space forward over setmarks. */

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#define MTBSS 26 /* Space backward over setmarks. */

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#define MTWSM 27 /* Write setmarks. */

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#define MTLOCK 28 /* Lock the drive door. */

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#define MTUNLOCK 29 /* Unlock the drive door. */

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#define MTLOAD 30 /* Execute the SCSI load command. */

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#define MTUNLOAD 31 /* Execute the SCSI unload command. */

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#define MTCOMPRESSION 32/* Control compression with SCSI mode page 15. */

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#define MTSETPART 33 /* Change the active tape partition. */

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#define MTMKPART 34 /* Format the tape with one or two partitions. */

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/* structure for MTIOCGET - mag tape get status command */

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struct mtget

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{

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long int mt_type; /* Type of magtape device. */

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long int 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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/* The following registers are device dependent. */

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long int mt_dsreg; /* Status register. */

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long int mt_gstat; /* Generic (device independent) status. */

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long int mt_erreg; /* Error register. */

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/* The next two fields are not always used. */

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__daddr_t mt_fileno; /* Number of current file on tape. */

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__daddr_t mt_blkno; /* Current block number. */

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};

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#define _IOT_mtget /* Hurd ioctl type field. */ \

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_IOT (_IOTS (long), 7, 0, 0, 0, 0)

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/* Constants for mt_type. Not all of these are supported, and

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these are not all of the ones that are supported. */

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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 0x03 /* Wangtek 5150EQ, QIC-150, QIC-02. */

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#define MT_ISARCHIVE_5945L2 0x04 /* Archive 5945L-2, QIC-24, QIC-02?. */

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#define MT_ISCMSJ500 0x05 /* CMS Jumbo 500 (QIC-02?). */

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#define MT_ISTDC3610 0x06 /* Tandberg 6310, QIC-24. */

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#define MT_ISARCHIVE_VP60I 0x07 /* Archive VP60i, QIC-02. */

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#define MT_ISARCHIVE_2150L 0x08 /* Archive Viper 2150L. */

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#define MT_ISARCHIVE_2060L 0x09 /* Archive Viper 2060L. */

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#define MT_ISARCHIVESC499 0x0A /* Archive SC-499 QIC-36 controller. */

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#define MT_ISQIC02_ALL_FEATURES 0x0F /* Generic QIC-02 with all features. */

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#define MT_ISWT5099EEN24 0x11 /* Wangtek 5099-een24, 60MB, QIC-24. */

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#define MT_ISTEAC_MT2ST 0x12 /* Teac MT-2ST 155mb drive,

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Teac DC-1 card (Wangtek type). */

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#define MT_ISEVEREX_FT40A 0x32 /* Everex FT40A (QIC-40). */

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#define MT_ISDDS1 0x51 /* DDS device without partitions. */

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#define MT_ISDDS2 0x52 /* DDS device with partitions. */

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#define MT_ISSCSI1 0x71 /* Generic ANSI SCSI-1 tape unit. */

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#define MT_ISSCSI2 0x72 /* Generic ANSI SCSI-2 tape unit. */

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/* QIC-40/80/3010/3020 ftape supported drives.

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20bit vendor ID + 0x800000 (see vendors.h in ftape distribution). */

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#define MT_ISFTAPE_UNKNOWN 0x800000 /* obsolete */

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#define MT_ISFTAPE_FLAG 0x800000

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struct mt_tape_info

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{

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long int 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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{ \

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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_ISARCHIVE_2150L, "Archive Viper 2150L"}, \

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{MT_ISARCHIVE_2060L, "Archive Viper 2060L"}, \

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{MT_ISARCHIVESC499, "Archive SC-499 QIC-36 controller"}, \

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{MT_ISQIC02_ALL_FEATURES, "Generic QIC-02 tape, all features"}, \

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{MT_ISWT5099EEN24, "Wangtek 5099-een24, 60MB"}, \

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{MT_ISTEAC_MT2ST, "Teac MT-2ST 155mb data cassette drive"}, \

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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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{MT_ISSCSI2, "Generic SCSI-2 tape"}, \

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{0, NULL} \

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}

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/* Structure for MTIOCPOS - mag tape get position command. */

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struct mtpos

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{

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long int mt_blkno; /* Current block number. */

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};

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#define _IOT_mtpos /* Hurd ioctl type field. */ \

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_IOT_SIMPLE (long)

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/* Structure for MTIOCGETCONFIG/MTIOCSETCONFIG primarily intended

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as an interim solution for QIC-02 until DDI is fully implemented. */

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struct mtconfiginfo

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{

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long int mt_type; /* Drive type. */

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long int ifc_type; /* Interface card type. */

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unsigned short int irqnr; /* IRQ number to use. */

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unsigned short int dmanr; /* DMA channel to use. */

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unsigned short int port; /* IO port base address. */

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unsigned long int debug; /* Debugging flags. */

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unsigned have_dens:1;

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unsigned have_bsf:1;

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unsigned have_fsr:1;

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unsigned have_bsr:1;

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unsigned have_eod:1;

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unsigned have_seek:1;

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unsigned have_tell:1;

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unsigned have_ras1:1;

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unsigned have_ras2:1;

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unsigned have_ras3:1;

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unsigned have_qfa:1;

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unsigned pad1:5;

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char reserved[10];

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};

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#define _IOT_mtconfiginfo /* Hurd ioctl type field. */ \

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_IOT (_IOTS (long), 2, _IOTS (short), 3, _IOTS (long), 1) /* XXX wrong */

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/* Magnetic tape I/O 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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#define MTIOCPOS _IOR('m', 3, struct mtpos) /* Get tape position.*/

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/* The next two are used by the QIC-02 driver for runtime reconfiguration.

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See tpqic02.h for struct mtconfiginfo. */

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#define MTIOCGETCONFIG _IOR('m', 4, struct mtconfiginfo) /* Get tape config.*/

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#define MTIOCSETCONFIG _IOW('m', 5, struct mtconfiginfo) /* Set tape config.*/

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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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#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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/* SCSI-tape specific definitions. Bitfield shifts in the status */

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#define MT_ST_BLKSIZE_SHIFT 0

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#define MT_ST_BLKSIZE_MASK 0xffffff

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#define MT_ST_DENSITY_SHIFT 24

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#define MT_ST_DENSITY_MASK 0xff000000

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#define MT_ST_SOFTERR_SHIFT 0

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#define MT_ST_SOFTERR_MASK 0xffff

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/* Bitfields for the MTSETDRVBUFFER ioctl. */

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#define MT_ST_OPTIONS 0xf0000000

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#define MT_ST_BOOLEANS 0x10000000

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#define MT_ST_SETBOOLEANS 0x30000000

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#define MT_ST_CLEARBOOLEANS 0x40000000

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#define MT_ST_WRITE_THRESHOLD 0x20000000

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#define MT_ST_DEF_BLKSIZE 0x50000000

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#define MT_ST_DEF_OPTIONS 0x60000000

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#define MT_ST_BUFFER_WRITES 0x1

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#define MT_ST_ASYNC_WRITES 0x2

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#define MT_ST_READ_AHEAD 0x4

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#define MT_ST_DEBUGGING 0x8

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#define MT_ST_TWO_FM 0x10

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#define MT_ST_FAST_MTEOM 0x20

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#define MT_ST_AUTO_LOCK 0x40

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#define MT_ST_DEF_WRITES 0x80

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#define MT_ST_CAN_BSR 0x100

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#define MT_ST_NO_BLKLIMS 0x200

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#define MT_ST_CAN_PARTITIONS 0x400

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#define MT_ST_SCSI2LOGICAL 0x800

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/* The mode parameters to be controlled. Parameter chosen with bits 20-28. */

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#define MT_ST_CLEAR_DEFAULT 0xfffff

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#define MT_ST_DEF_DENSITY (MT_ST_DEF_OPTIONS | 0x100000)

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#define MT_ST_DEF_COMPRESSION (MT_ST_DEF_OPTIONS | 0x200000)

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#define MT_ST_DEF_DRVBUFFER (MT_ST_DEF_OPTIONS | 0x300000)

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/* The offset for the arguments for the special HP changer load command. */

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#define MT_ST_HPLOADER_OFFSET 10000

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/* Specify default tape device. */

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#ifndef DEFTAPE

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# define DEFTAPE "/dev/tape"

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#endif

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#endif /* mtio.h */

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