1 /* 2 * Copyright (c) 1982, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)mtio.h 8.1 (Berkeley) 06/02/93 8 */ 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 daddr_t mt_count; /* how many of them */ 18 }; 19 20 /* operations */ 21 #define MTWEOF 0 /* write an end-of-file record */ 22 #define MTFSF 1 /* forward space file */ 23 #define MTBSF 2 /* backward space file */ 24 #define MTFSR 3 /* forward space record */ 25 #define MTBSR 4 /* backward space record */ 26 #define MTREW 5 /* rewind */ 27 #define MTOFFL 6 /* rewind and put the drive offline */ 28 #define MTNOP 7 /* no operation, sets status only */ 29 #define MTCACHE 8 /* enable controller cache */ 30 #define MTNOCACHE 9 /* disable controller cache */ 31 32 /* structure for MTIOCGET - mag tape get status command */ 33 34 struct mtget { 35 short mt_type; /* type of magtape device */ 36 /* the following two registers are grossly device dependent */ 37 short mt_dsreg; /* ``drive status'' register */ 38 short mt_erreg; /* ``error'' register */ 39 /* end device-dependent registers */ 40 short mt_resid; /* residual count */ 41 /* the following two are not yet implemented */ 42 daddr_t mt_fileno; /* file number of current position */ 43 daddr_t mt_blkno; /* block number of current position */ 44 /* end not yet implemented */ 45 }; 46 47 /* 48 * Constants for mt_type byte. These are the same 49 * for controllers compatible with the types listed. 50 */ 51 #define MT_ISTS 0x01 /* TS-11 */ 52 #define MT_ISHT 0x02 /* TM03 Massbus: TE16, TU45, TU77 */ 53 #define MT_ISTM 0x03 /* TM11/TE10 Unibus */ 54 #define MT_ISMT 0x04 /* TM78/TU78 Massbus */ 55 #define MT_ISUT 0x05 /* SI TU-45 emulation on Unibus */ 56 #define MT_ISCPC 0x06 /* SUN */ 57 #define MT_ISAR 0x07 /* SUN */ 58 #define MT_ISTMSCP 0x08 /* DEC TMSCP protocol (TU81, TK50) */ 59 #define MT_ISCY 0x09 /* CCI Cipher */ 60 #define MT_ISCT 0x0a /* HP 1/4 tape */ 61 #define MT_ISFHP 0x0b /* HP 7980 1/2 tape */ 62 #define MT_ISEXABYTE 0x0c /* Exabyte */ 63 #define MT_ISEXA8200 0x0c /* Exabyte EXB-8200 */ 64 #define MT_ISEXA8500 0x0d /* Exabyte EXB-8500 */ 65 #define MT_ISVIPER1 0x0e /* Archive Viper-150 */ 66 #define MT_ISPYTHON 0x0f /* Archive Python (DAT) */ 67 #define MT_ISHPDAT 0x10 /* HP 35450A DAT drive */ 68 #define MT_ISMFOUR 0x11 /* M4 Data 1/2 9track drive */ 69 #define MT_ISTK50 0x12 /* DEC SCSI TK50 */ 70 #define MT_ISMT02 0x13 /* Emulex MT02 SCSI tape controller */ 71 72 /* mag tape io control commands */ 73 #define MTIOCTOP _IOW('m', 1, struct mtop) /* do a mag tape op */ 74 #define MTIOCGET _IOR('m', 2, struct mtget) /* get tape status */ 75 #define MTIOCIEOT _IO('m', 3) /* ignore EOT error */ 76 #define MTIOCEEOT _IO('m', 4) /* enable EOT error */ 77 78 #ifndef KERNEL 79 #define DEFTAPE "/dev/rmt12" 80 #endif 81 82 #ifdef KERNEL 83 /* 84 * minor device number 85 */ 86 87 #define T_UNIT 003 /* unit selection */ 88 #define T_NOREWIND 004 /* no rewind on close */ 89 #define T_DENSEL 030 /* density select */ 90 #define T_800BPI 000 /* select 800 bpi */ 91 #define T_1600BPI 010 /* select 1600 bpi */ 92 #define T_6250BPI 020 /* select 6250 bpi */ 93 #define T_BADBPI 030 /* undefined selection */ 94 #endif 95