1 /* 2 * Copyright (c) 1982, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)mtio.h 8.1 (Berkeley) 6/2/93 34 * $FreeBSD: src/sys/sys/mtio.h,v 1.20.2.2 2001/01/22 18:02:47 mjacob Exp $ 35 * $DragonFly: src/sys/sys/mtio.h,v 1.3 2004/02/06 03:20:47 rob Exp $ 36 */ 37 38 #ifndef _SYS_MTIO_H_ 39 #define _SYS_MTIO_H_ 40 41 #ifndef _KERNEL 42 #include <sys/types.h> 43 #endif 44 #include <sys/ioccom.h> 45 46 /* 47 * Structures and definitions for mag tape io control commands 48 */ 49 50 /* structure for MTIOCTOP - mag tape op command */ 51 struct mtop { 52 short mt_op; /* operations defined below */ 53 daddr_t mt_count; /* how many of them */ 54 }; 55 56 /* operations */ 57 #define MTWEOF 0 /* write an end-of-file record */ 58 #define MTFSF 1 /* forward space file */ 59 #define MTBSF 2 /* backward space file */ 60 #define MTFSR 3 /* forward space record */ 61 #define MTBSR 4 /* backward space record */ 62 #define MTREW 5 /* rewind */ 63 #define MTOFFL 6 /* rewind and put the drive offline */ 64 #define MTNOP 7 /* no operation, sets status only */ 65 #define MTCACHE 8 /* enable controller cache */ 66 #define MTNOCACHE 9 /* disable controller cache */ 67 68 #if defined(__DragonFly__) 69 /* Set block size for device. If device is a variable size dev */ 70 /* a non zero parameter will change the device to a fixed block size */ 71 /* device with block size set to that of the parameter passed in. */ 72 /* Resetting the block size to 0 will restore the device to a variable */ 73 /* block size device. */ 74 75 #define MTSETBSIZ 10 76 77 /* Set density values for device. Sets the value for the opened mode only. */ 78 79 #define MTSETDNSTY 11 80 81 #define MTERASE 12 /* erase to EOM */ 82 #define MTEOD 13 /* Space to EOM */ 83 #define MTCOMP 14 /* select compression mode 0=off, 1=def */ 84 #define MTRETENS 15 /* re-tension tape */ 85 #define MTWSS 16 /* write setmark(s) */ 86 #define MTFSS 17 /* forward space setmark */ 87 #define MTBSS 18 /* backward space setmark */ 88 89 #define MT_COMP_ENABLE 0xffffffff 90 #define MT_COMP_DISABLED 0xfffffffe 91 #define MT_COMP_UNSUPP 0xfffffffd 92 93 /* 94 * Values in mt_dsreg that say what the device is doing 95 */ 96 #define MTIO_DSREG_NIL 0 /* Unknown */ 97 #define MTIO_DSREG_REST 1 /* Doing Nothing */ 98 #define MTIO_DSREG_RBSY 2 /* Communicating with tape (but no motion) */ 99 #define MTIO_DSREG_WR 20 /* Writing */ 100 #define MTIO_DSREG_FMK 21 /* Writing Filemarks */ 101 #define MTIO_DSREG_ZER 22 /* Erasing */ 102 #define MTIO_DSREG_RD 30 /* Reading */ 103 #define MTIO_DSREG_FWD 40 /* Spacing Forward */ 104 #define MTIO_DSREG_REV 41 /* Spacing Reverse */ 105 #define MTIO_DSREG_POS 42 /* Hardware Positioning (direction unknown) */ 106 #define MTIO_DSREG_REW 43 /* Rewinding */ 107 #define MTIO_DSREG_TEN 44 /* Retensioning */ 108 #define MTIO_DSREG_UNL 45 /* Unloading */ 109 #define MTIO_DSREG_LD 46 /* Loading */ 110 111 #endif /* __DragonFly__ */ 112 113 /* structure for MTIOCGET - mag tape get status command */ 114 115 struct mtget { 116 short mt_type; /* type of magtape device */ 117 /* the following two registers are grossly device dependent */ 118 short mt_dsreg; /* ``drive status'' register */ 119 short mt_erreg; /* ``error'' register */ 120 /* end device-dependent registers */ 121 /* 122 * Note that the residual count, while maintained, may be 123 * be nonsense because the size of the residual may (greatly) 124 * exceed 32 K-bytes. Use the MTIOCERRSTAT ioctl to get a 125 * more accurate count. 126 */ 127 short mt_resid; /* residual count */ 128 #if defined (__DragonFly__) 129 daddr_t mt_blksiz; /* presently operating blocksize */ 130 daddr_t mt_density; /* presently operating density */ 131 u_int32_t mt_comp; /* presently operating compression */ 132 daddr_t mt_blksiz0; /* blocksize for mode 0 */ 133 daddr_t mt_blksiz1; /* blocksize for mode 1 */ 134 daddr_t mt_blksiz2; /* blocksize for mode 2 */ 135 daddr_t mt_blksiz3; /* blocksize for mode 3 */ 136 daddr_t mt_density0; /* density for mode 0 */ 137 daddr_t mt_density1; /* density for mode 1 */ 138 daddr_t mt_density2; /* density for mode 2 */ 139 daddr_t mt_density3; /* density for mode 3 */ 140 /* the following are not yet implemented */ 141 u_int32_t mt_comp0; /* compression type for mode 0 */ 142 u_int32_t mt_comp1; /* compression type for mode 1 */ 143 u_int32_t mt_comp2; /* compression type for mode 2 */ 144 u_int32_t mt_comp3; /* compression type for mode 3 */ 145 /* end not yet implemented */ 146 #endif 147 daddr_t mt_fileno; /* relative file number of current position */ 148 daddr_t mt_blkno; /* relative block number of current position */ 149 }; 150 151 /* structure for MTIOCERRSTAT - tape get error status command */ 152 /* really only supported for SCSI tapes right now */ 153 struct scsi_tape_errors { 154 /* 155 * These are latched from the last command that had a SCSI 156 * Check Condition noted for these operations. The act 157 * of issuing an MTIOCERRSTAT unlatches and clears them. 158 */ 159 u_int8_t io_sense[32]; /* Last Sense Data For Data I/O */ 160 int32_t io_resid; /* residual count from last Data I/O */ 161 u_int8_t io_cdb[16]; /* Command that Caused the Last Data Sense */ 162 u_int8_t ctl_sense[32]; /* Last Sense Data For Control I/O */ 163 int32_t ctl_resid; /* residual count from last Control I/O */ 164 u_int8_t ctl_cdb[16]; /* Command that Caused the Last Control Sense */ 165 /* 166 * These are the read and write cumulative error counters. 167 * (how to reset cumulative error counters is not yet defined). 168 * (not implemented as yet but space is being reserved for them) 169 */ 170 struct { 171 u_int32_t retries; /* total # retries performed */ 172 u_int32_t corrected; /* total # corrections performed */ 173 u_int32_t processed; /* total # corrections succssful */ 174 u_int32_t failures; /* total # corrections/retries failed */ 175 u_int64_t nbytes; /* total # bytes processed */ 176 } wterr, rderr; 177 }; 178 179 union mterrstat { 180 struct scsi_tape_errors scsi_errstat; 181 char _reserved_padding[256]; 182 }; 183 184 /* 185 * Constants for mt_type byte. These are the same 186 * for controllers compatible with the types listed. 187 */ 188 #define MT_ISTS 0x01 /* TS-11 */ 189 #define MT_ISHT 0x02 /* TM03 Massbus: TE16, TU45, TU77 */ 190 #define MT_ISTM 0x03 /* TM11/TE10 Unibus */ 191 #define MT_ISMT 0x04 /* TM78/TU78 Massbus */ 192 #define MT_ISUT 0x05 /* SI TU-45 emulation on Unibus */ 193 #define MT_ISCPC 0x06 /* SUN */ 194 #define MT_ISAR 0x07 /* SUN */ 195 #define MT_ISTMSCP 0x08 /* DEC TMSCP protocol (TU81, TK50) */ 196 #define MT_ISCY 0x09 /* CCI Cipher */ 197 #define MT_ISCT 0x0a /* HP 1/4 tape */ 198 #define MT_ISFHP 0x0b /* HP 7980 1/2 tape */ 199 #define MT_ISEXABYTE 0x0c /* Exabyte */ 200 #define MT_ISEXA8200 0x0c /* Exabyte EXB-8200 */ 201 #define MT_ISEXA8500 0x0d /* Exabyte EXB-8500 */ 202 #define MT_ISVIPER1 0x0e /* Archive Viper-150 */ 203 #define MT_ISPYTHON 0x0f /* Archive Python (DAT) */ 204 #define MT_ISHPDAT 0x10 /* HP 35450A DAT drive */ 205 #define MT_ISMFOUR 0x11 /* M4 Data 1/2 9track drive */ 206 #define MT_ISTK50 0x12 /* DEC SCSI TK50 */ 207 #define MT_ISMT02 0x13 /* Emulex MT02 SCSI tape controller */ 208 209 /* mag tape io control commands */ 210 #define MTIOCTOP _IOW('m', 1, struct mtop) /* do a mag tape op */ 211 #define MTIOCGET _IOR('m', 2, struct mtget) /* get tape status */ 212 /* these two do not appear to be used anywhere */ 213 #define MTIOCIEOT _IO('m', 3) /* ignore EOT error */ 214 #define MTIOCEEOT _IO('m', 4) /* enable EOT error */ 215 /* 216 * When more SCSI-3 SSC (streaming device) devices are out there 217 * that support the full 32 byte type 2 structure, we'll have to 218 * rethink these ioctls to support all the entities they haul into 219 * the picture (64 bit blocks, logical file record numbers, etc..). 220 */ 221 #define MTIOCRDSPOS _IOR('m', 5, u_int32_t) /* get logical blk addr */ 222 #define MTIOCRDHPOS _IOR('m', 6, u_int32_t) /* get hardware blk addr */ 223 #define MTIOCSLOCATE _IOW('m', 5, u_int32_t) /* seek to logical blk addr */ 224 #define MTIOCHLOCATE _IOW('m', 6, u_int32_t) /* seek to hardware blk addr */ 225 #define MTIOCERRSTAT _IOR('m', 7, union mterrstat) /* get tape errors */ 226 /* 227 * Set EOT model- argument is number of filemarks to end a tape with. 228 * Note that not all possible values will be accepted. 229 */ 230 #define MTIOCSETEOTMODEL _IOW('m', 8, u_int32_t) 231 /* Get current EOT model */ 232 #define MTIOCGETEOTMODEL _IOR('m', 8, u_int32_t) 233 234 #ifndef _KERNEL 235 #define DEFTAPE "/dev/nsa0" 236 #endif 237 238 #ifdef _KERNEL 239 /* 240 * minor device number 241 */ 242 243 #define T_UNIT 003 /* unit selection */ 244 #define T_NOREWIND 004 /* no rewind on close */ 245 #define T_DENSEL 030 /* density select */ 246 #define T_800BPI 000 /* select 800 bpi */ 247 #define T_1600BPI 010 /* select 1600 bpi */ 248 #define T_6250BPI 020 /* select 6250 bpi */ 249 #define T_BADBPI 030 /* undefined selection */ 250 #endif 251 252 #endif /* !_SYS_MTIO_H_ */ 253