1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2002 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate * 26*0Sstevel@tonic-gate * Copyright (c) 1983-1989 by AT&T. 27*0Sstevel@tonic-gate * All rights reserved. 28*0Sstevel@tonic-gate */ 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate /* 31*0Sstevel@tonic-gate * Portions of this source code were derived from Berkeley 4.3 BSD 32*0Sstevel@tonic-gate * under license from the Regents of the University of California. 33*0Sstevel@tonic-gate */ 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate #ifndef _SYS_MTIO_H 36*0Sstevel@tonic-gate #define _SYS_MTIO_H 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate #include <sys/types.h> 41*0Sstevel@tonic-gate 42*0Sstevel@tonic-gate #ifdef __cplusplus 43*0Sstevel@tonic-gate extern "C" { 44*0Sstevel@tonic-gate #endif 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate /* 47*0Sstevel@tonic-gate * Structures and definitions for mag tape io control commands 48*0Sstevel@tonic-gate */ 49*0Sstevel@tonic-gate 50*0Sstevel@tonic-gate /* 51*0Sstevel@tonic-gate * structure for MTIOCTOP - mag tape op command 52*0Sstevel@tonic-gate */ 53*0Sstevel@tonic-gate struct mtop { 54*0Sstevel@tonic-gate short mt_op; /* operations defined below */ 55*0Sstevel@tonic-gate daddr_t mt_count; /* how many of them */ 56*0Sstevel@tonic-gate }; 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate #if defined(_SYSCALL32) 59*0Sstevel@tonic-gate struct mtop32 { 60*0Sstevel@tonic-gate short mt_op; /* operations defined below */ 61*0Sstevel@tonic-gate daddr32_t mt_count; /* how many of them */ 62*0Sstevel@tonic-gate }; 63*0Sstevel@tonic-gate #endif /* _SYSCALL32 */ 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate /* 67*0Sstevel@tonic-gate * values for mt_op 68*0Sstevel@tonic-gate */ 69*0Sstevel@tonic-gate #define MTWEOF 0 /* write an end-of-file record */ 70*0Sstevel@tonic-gate #define MTFSF 1 /* forward space over file mark */ 71*0Sstevel@tonic-gate #define MTBSF 2 /* backward space over file mark (1/2" only ) */ 72*0Sstevel@tonic-gate #define MTFSR 3 /* forward space to inter-record gap */ 73*0Sstevel@tonic-gate #define MTBSR 4 /* backward space to inter-record gap */ 74*0Sstevel@tonic-gate #define MTREW 5 /* rewind */ 75*0Sstevel@tonic-gate #define MTOFFL 6 /* rewind and put the drive offline */ 76*0Sstevel@tonic-gate #define MTNOP 7 /* no operation, sets status only */ 77*0Sstevel@tonic-gate #define MTRETEN 8 /* retension the tape (cartridge tape only) */ 78*0Sstevel@tonic-gate #define MTERASE 9 /* erase the entire tape */ 79*0Sstevel@tonic-gate #define MTEOM 10 /* position to end of media */ 80*0Sstevel@tonic-gate #define MTNBSF 11 /* backward space file to BOF */ 81*0Sstevel@tonic-gate #define MTSRSZ 12 /* set record size */ 82*0Sstevel@tonic-gate #define MTGRSZ 13 /* get record size */ 83*0Sstevel@tonic-gate #define MTLOAD 14 /* for loading a tape (use o_delay to open */ 84*0Sstevel@tonic-gate /* the tape device) */ 85*0Sstevel@tonic-gate 86*0Sstevel@tonic-gate /* 87*0Sstevel@tonic-gate * structure for MTIOCGET - mag tape get status command 88*0Sstevel@tonic-gate */ 89*0Sstevel@tonic-gate struct mtget { 90*0Sstevel@tonic-gate short mt_type; /* type of magtape device */ 91*0Sstevel@tonic-gate /* the following two registers are grossly device dependent */ 92*0Sstevel@tonic-gate short mt_dsreg; /* ``drive status'' register */ 93*0Sstevel@tonic-gate short mt_erreg; /* ``error'' register */ 94*0Sstevel@tonic-gate /* optional error info. */ 95*0Sstevel@tonic-gate daddr_t mt_resid; /* residual count */ 96*0Sstevel@tonic-gate daddr_t mt_fileno; /* file number of current position */ 97*0Sstevel@tonic-gate daddr_t mt_blkno; /* block number of current position */ 98*0Sstevel@tonic-gate ushort_t mt_flags; 99*0Sstevel@tonic-gate short mt_bf; /* optimum blocking factor */ 100*0Sstevel@tonic-gate }; 101*0Sstevel@tonic-gate 102*0Sstevel@tonic-gate #if defined(_SYSCALL32) 103*0Sstevel@tonic-gate struct mtget32 { 104*0Sstevel@tonic-gate short mt_type; /* type of magtape device */ 105*0Sstevel@tonic-gate /* the following two registers are grossly device dependent */ 106*0Sstevel@tonic-gate short mt_dsreg; /* ``drive status'' register */ 107*0Sstevel@tonic-gate short mt_erreg; /* ``error'' register */ 108*0Sstevel@tonic-gate /* optional error info. */ 109*0Sstevel@tonic-gate daddr32_t mt_resid; /* residual count */ 110*0Sstevel@tonic-gate daddr32_t mt_fileno; /* file number of current position */ 111*0Sstevel@tonic-gate daddr32_t mt_blkno; /* block number of current position */ 112*0Sstevel@tonic-gate ushort_t mt_flags; 113*0Sstevel@tonic-gate short mt_bf; /* optimum blocking factor */ 114*0Sstevel@tonic-gate }; 115*0Sstevel@tonic-gate #endif /* _SYSCALL32 */ 116*0Sstevel@tonic-gate 117*0Sstevel@tonic-gate #define MT_NDENSITIES 4 118*0Sstevel@tonic-gate #define MT_NSPEEDS 4 119*0Sstevel@tonic-gate 120*0Sstevel@tonic-gate /* 121*0Sstevel@tonic-gate * struct for MTIOCGETDRIVETYPE - get tape config data 122*0Sstevel@tonic-gate */ 123*0Sstevel@tonic-gate struct mtdrivetype { 124*0Sstevel@tonic-gate char name[64]; /* Name, for debug */ 125*0Sstevel@tonic-gate char vid[25]; /* Vendor id and model (product) id */ 126*0Sstevel@tonic-gate char type; /* Drive type for driver */ 127*0Sstevel@tonic-gate int bsize; /* Block size */ 128*0Sstevel@tonic-gate int options; /* Drive options */ 129*0Sstevel@tonic-gate int max_rretries; /* Max read retries */ 130*0Sstevel@tonic-gate int max_wretries; /* Max write retries */ 131*0Sstevel@tonic-gate uchar_t densities[MT_NDENSITIES]; /* density codes, low->hi */ 132*0Sstevel@tonic-gate uchar_t default_density; /* Default density chosen */ 133*0Sstevel@tonic-gate uchar_t speeds[MT_NSPEEDS]; /* speed codes, low->hi */ 134*0Sstevel@tonic-gate ushort_t non_motion_timeout; /* Inquiry type commands */ 135*0Sstevel@tonic-gate ushort_t io_timeout; /* io timeout. seconds */ 136*0Sstevel@tonic-gate ushort_t rewind_timeout; /* rewind timeout. seconds */ 137*0Sstevel@tonic-gate ushort_t space_timeout; /* space cmd timeout. seconds */ 138*0Sstevel@tonic-gate ushort_t load_timeout; /* load tape time in seconds */ 139*0Sstevel@tonic-gate ushort_t unload_timeout; /* Unload tape time in scounds */ 140*0Sstevel@tonic-gate ushort_t erase_timeout; /* erase timeout. seconds */ 141*0Sstevel@tonic-gate }; 142*0Sstevel@tonic-gate 143*0Sstevel@tonic-gate 144*0Sstevel@tonic-gate struct mtdrivetype_request { 145*0Sstevel@tonic-gate int size; 146*0Sstevel@tonic-gate struct mtdrivetype *mtdtp; 147*0Sstevel@tonic-gate }; 148*0Sstevel@tonic-gate 149*0Sstevel@tonic-gate #if defined(_SYSCALL32) 150*0Sstevel@tonic-gate struct mtdrivetype_request32 { 151*0Sstevel@tonic-gate int size; 152*0Sstevel@tonic-gate caddr32_t mtdtp; 153*0Sstevel@tonic-gate }; 154*0Sstevel@tonic-gate #endif /* _SYSCALL32 */ 155*0Sstevel@tonic-gate 156*0Sstevel@tonic-gate 157*0Sstevel@tonic-gate /* 158*0Sstevel@tonic-gate * values for mt_flags 159*0Sstevel@tonic-gate */ 160*0Sstevel@tonic-gate #define MTF_SCSI 0x01 161*0Sstevel@tonic-gate #define MTF_REEL 0x02 162*0Sstevel@tonic-gate #define MTF_ASF 0x04 163*0Sstevel@tonic-gate 164*0Sstevel@tonic-gate #define MTF_TAPE_HEAD_DIRTY 0x08 165*0Sstevel@tonic-gate #define MTF_TAPE_CLN_SUPPORTED 0x10 166*0Sstevel@tonic-gate 167*0Sstevel@tonic-gate /* 168*0Sstevel@tonic-gate * Constants for mt_type byte (these are somewhat obsolete) 169*0Sstevel@tonic-gate */ 170*0Sstevel@tonic-gate #define MT_ISTS 0x01 /* vax: unibus ts-11 */ 171*0Sstevel@tonic-gate #define MT_ISHT 0x02 /* vax: massbus tu77, etc */ 172*0Sstevel@tonic-gate #define MT_ISTM 0x03 /* vax: unibus tm-11 */ 173*0Sstevel@tonic-gate #define MT_ISMT 0x04 /* vax: massbus tu78 */ 174*0Sstevel@tonic-gate #define MT_ISUT 0x05 /* vax: unibus gcr */ 175*0Sstevel@tonic-gate #define MT_ISCPC 0x06 /* sun: multibus cpc */ 176*0Sstevel@tonic-gate #define MT_ISAR 0x07 /* sun: multibus archive */ 177*0Sstevel@tonic-gate #define MT_ISSC 0x08 /* sun: SCSI archive */ 178*0Sstevel@tonic-gate #define MT_ISSYSGEN11 0x10 /* sun: SCSI Sysgen, QIC-11 only */ 179*0Sstevel@tonic-gate #define MT_ISSYSGEN 0x11 /* sun: SCSI Sysgen QIC-24/11 */ 180*0Sstevel@tonic-gate #define MT_ISDEFAULT 0x12 /* sun: SCSI default CCS */ 181*0Sstevel@tonic-gate #define MT_ISCCS3 0x13 /* sun: SCSI generic (unknown) CCS */ 182*0Sstevel@tonic-gate #define MT_ISMT02 0x14 /* sun: SCSI Emulex MT02 */ 183*0Sstevel@tonic-gate #define MT_ISVIPER1 0x15 /* sun: SCSI Archive QIC-150 Viper */ 184*0Sstevel@tonic-gate #define MT_ISWANGTEK1 0x16 /* sun: SCSI Wangtek QIC-150 */ 185*0Sstevel@tonic-gate #define MT_ISCCS7 0x17 /* sun: SCSI generic (unknown) CCS */ 186*0Sstevel@tonic-gate #define MT_ISCCS8 0x18 /* sun: SCSI generic (unknown) CCS */ 187*0Sstevel@tonic-gate #define MT_ISCCS9 0x19 /* sun: SCSI generic (unknown) CCS */ 188*0Sstevel@tonic-gate #define MT_ISCCS11 0x1a /* sun: SCSI generic (unknown) CCS */ 189*0Sstevel@tonic-gate #define MT_ISCCS12 0x1b /* sun: SCSI generic (unknown) CCS */ 190*0Sstevel@tonic-gate #define MT_ISCCS13 0x1c /* sun: SCSI generic (unknown) CCS */ 191*0Sstevel@tonic-gate #define MT_ISCCS14 0x1d /* sun: SCSI generic (unknown) CCS */ 192*0Sstevel@tonic-gate #define MT_ISCCS15 0x1e /* sun: SCSI generic (unknown) CCS */ 193*0Sstevel@tonic-gate #define MT_ISCCS16 0x1f /* sun: SCSI generic (unknown) CCS */ 194*0Sstevel@tonic-gate #define MT_ISCDC 0x20 /* sun: SCSI CDC 1/2" cartridge */ 195*0Sstevel@tonic-gate #define MT_ISFUJI 0x21 /* sun: SCSI Fujitsu 1/2" cartridge */ 196*0Sstevel@tonic-gate #define MT_ISKENNEDY 0x22 /* sun: SCSI Kennedy 1/2" reel */ 197*0Sstevel@tonic-gate #define MT_ISHP 0x23 /* sun: SCSI HP 1/2" reel */ 198*0Sstevel@tonic-gate #define MT_ISSTC 0x24 /* sun: SCSI IBM STC 3490 */ 199*0Sstevel@tonic-gate #define MT_ISANRITSU 0x25 /* nihon sun: Anritsu 1/2" reel */ 200*0Sstevel@tonic-gate #define MT_ISCCS23 0x26 /* sun: SCSI generic 1/2" */ 201*0Sstevel@tonic-gate #define MT_ISCCS24 0x27 /* sun: SCSI generic 1/2" */ 202*0Sstevel@tonic-gate #define MT_ISEXABYTE 0x28 /* sun: SCSI Exabyte 8mm cartridge */ 203*0Sstevel@tonic-gate #define MT_ISEXB8500 0x29 /* sun: SCSI Exabyte 8500 8mm cart */ 204*0Sstevel@tonic-gate #define MT_ISWANGTHS 0x2a /* sun: SCSI Wangtek 6130HS RDAT */ 205*0Sstevel@tonic-gate #define MT_ISWANGDAT 0x2b /* sun: SCSI WangDAT */ 206*0Sstevel@tonic-gate #define MT_ISPYTHON 0x2c /* sun: SCSI Archive Python DAT */ 207*0Sstevel@tonic-gate #define MT_ISCCS28 0x2d /* sun: SCSI generic DAT CCS */ 208*0Sstevel@tonic-gate #define MT_ISCCS29 0x2e /* sun: SCSI generic (unknown) CCS */ 209*0Sstevel@tonic-gate #define MT_ISCCS30 0x2f /* sun: SCSI generic (unknown) CCS */ 210*0Sstevel@tonic-gate #define MT_ISCCS31 0x30 /* sun: SCSI generic (unknown) CCS */ 211*0Sstevel@tonic-gate #define MT_ISCCS32 0x31 /* sun: SCSI generic (unknown) CCS */ 212*0Sstevel@tonic-gate 213*0Sstevel@tonic-gate 214*0Sstevel@tonic-gate /* 215*0Sstevel@tonic-gate * these are recommended 216*0Sstevel@tonic-gate */ 217*0Sstevel@tonic-gate #define MT_ISQIC 0x32 /* generic QIC tape drive */ 218*0Sstevel@tonic-gate #define MT_ISREEL 0x33 /* generic reel tape drive */ 219*0Sstevel@tonic-gate #define MT_ISDAT 0x34 /* generic DAT tape drive */ 220*0Sstevel@tonic-gate #define MT_IS8MM 0x35 /* generic 8mm tape drive */ 221*0Sstevel@tonic-gate #define MT_ISOTHER 0x36 /* generic other type of tape drive */ 222*0Sstevel@tonic-gate 223*0Sstevel@tonic-gate /* more Sun devices */ 224*0Sstevel@tonic-gate #define MT_ISTAND25G 0x37 /* sun: SCSI Tandberg 2.5 Gig QIC */ 225*0Sstevel@tonic-gate #define MT_ISDLT 0x38 /* sun: SCSI DLT tape drive */ 226*0Sstevel@tonic-gate #define MT_ISSTK9840 0x39 /* sun: STK 9840, 9940, 9840B */ 227*0Sstevel@tonic-gate #define MT_ISBMDLT1 0x3a /* sun: Benchmark DLT1 */ 228*0Sstevel@tonic-gate #define MT_LTO 0x3b /* sun: LTO,s by Hp, Seagate, IBM .. */ 229*0Sstevel@tonic-gate 230*0Sstevel@tonic-gate /* 231*0Sstevel@tonic-gate * Device table structure and data for looking tape name from 232*0Sstevel@tonic-gate * tape id number. Used by mt.c. 233*0Sstevel@tonic-gate */ 234*0Sstevel@tonic-gate struct mt_tape_info { 235*0Sstevel@tonic-gate short t_type; /* type of magtape device */ 236*0Sstevel@tonic-gate char *t_name; /* printing name */ 237*0Sstevel@tonic-gate char *t_dsbits; /* "drive status" register */ 238*0Sstevel@tonic-gate char *t_erbits; /* "error" register */ 239*0Sstevel@tonic-gate }; 240*0Sstevel@tonic-gate 241*0Sstevel@tonic-gate /* 242*0Sstevel@tonic-gate * this table is now obsolete, use MTIOCGETDRIVETYPE ioctl 243*0Sstevel@tonic-gate * 244*0Sstevel@tonic-gate * WARNING: this table will be eliminated in some future release 245*0Sstevel@tonic-gate */ 246*0Sstevel@tonic-gate #define MT_TAPE_INFO {\ 247*0Sstevel@tonic-gate { MT_ISSYSGEN11, "Sysgen QIC-11", 0, 0 }, \ 248*0Sstevel@tonic-gate { MT_ISSYSGEN, "Sysgen QIC-24", 0, 0 }, \ 249*0Sstevel@tonic-gate { MT_ISMT02, "Emulex MT-02 QIC-24", 0, 0 }, \ 250*0Sstevel@tonic-gate { MT_ISVIPER1, "Archive QIC-150", 0, 0 }, \ 251*0Sstevel@tonic-gate { MT_ISWANGTEK1, "Wangtek QIC-150", 0, 0 }, \ 252*0Sstevel@tonic-gate { MT_ISKENNEDY, "Kennedy 9612 1/2-inch", 0, 0 }, \ 253*0Sstevel@tonic-gate { MT_ISANRITSU, "Anritsu 1/2-inch", 0, 0 }, \ 254*0Sstevel@tonic-gate { MT_ISHP, "HP 88780 1/2-inch", 0, 0 }, \ 255*0Sstevel@tonic-gate { MT_ISEXABYTE, "Exabyte EXB-8200 8mm", 0, 0 }, \ 256*0Sstevel@tonic-gate { MT_ISEXB8500, "Exabyte EXB-8500 8mm", 0, 0 }, \ 257*0Sstevel@tonic-gate { MT_ISWANGDAT, "WangDAT 3.81mm", 0, 0 }, \ 258*0Sstevel@tonic-gate { MT_ISWANGTHS, "Wangtek 4mm RDAT", 0, 0 }, \ 259*0Sstevel@tonic-gate { MT_ISPYTHON, "Archive Python 4mm Helical Scan", 0, 0 }, \ 260*0Sstevel@tonic-gate { MT_ISSTC, "STC 1/2\" Cartridge", 0, 0}, \ 261*0Sstevel@tonic-gate { MT_ISTAND25G, "Tandberg 2.5 Gig QIC", 0, 0}, \ 262*0Sstevel@tonic-gate { MT_ISQIC, "QIC", 0, 0}, \ 263*0Sstevel@tonic-gate { MT_ISREEL, "REEL", 0, 0}, \ 264*0Sstevel@tonic-gate { MT_ISDAT, "DAT", 0, 0}, \ 265*0Sstevel@tonic-gate { MT_IS8MM, "8mm", 0, 0}, \ 266*0Sstevel@tonic-gate { MT_ISOTHER, "Other", 0, 0}, \ 267*0Sstevel@tonic-gate { 0 } \ 268*0Sstevel@tonic-gate } 269*0Sstevel@tonic-gate 270*0Sstevel@tonic-gate /* mag tape io control commands */ 271*0Sstevel@tonic-gate #define MTIOC ('m'<<8) 272*0Sstevel@tonic-gate #define MTIOCTOP (MTIOC|1) /* do a mag tape op */ 273*0Sstevel@tonic-gate #define MTIOCGET (MTIOC|2) /* get tape status */ 274*0Sstevel@tonic-gate #define MTIOCGETDRIVETYPE (MTIOC|3) /* get tape config data */ 275*0Sstevel@tonic-gate #define MTIOCPERSISTENT (MTIOC|4) /* turn on persistent errors */ 276*0Sstevel@tonic-gate #define MTIOCPERSISTENTSTATUS (MTIOC|5) /* query persis. err status */ 277*0Sstevel@tonic-gate #define MTIOCLRERR (MTIOC|6) /* clear a persitent error */ 278*0Sstevel@tonic-gate #define MTIOCGUARANTEEDORDER (MTIOC|7) /* check for guaranteed order */ 279*0Sstevel@tonic-gate #define MTIOCRESERVE (MTIOC|8) /* preserve reserve */ 280*0Sstevel@tonic-gate #define MTIOCRELEASE (MTIOC|9) /* turnoff preserve reserve */ 281*0Sstevel@tonic-gate #define MTIOCFORCERESERVE (MTIOC|10) /* break reservation drive */ 282*0Sstevel@tonic-gate 283*0Sstevel@tonic-gate #define MTIOCSTATE (MTIOC|13) /* Inquire insert/eject state */ 284*0Sstevel@tonic-gate 285*0Sstevel@tonic-gate #define MTIOCREADIGNOREILI (MTIOC|14) /* Enable/Disable ILI */ 286*0Sstevel@tonic-gate #define MTIOCREADIGNOREEOFS (MTIOC|15) /* Enable/Disable Ignore EOF */ 287*0Sstevel@tonic-gate #define MTIOCSHORTFMK (MTIOC|16) /* Enable/Disable Short FMK */ 288*0Sstevel@tonic-gate 289*0Sstevel@tonic-gate /* 290*0Sstevel@tonic-gate * This state enum is the argument passed to the MTIOCSTATE ioctl. 291*0Sstevel@tonic-gate */ 292*0Sstevel@tonic-gate enum mtio_state { MTIO_NONE, MTIO_EJECTED, MTIO_INSERTED }; 293*0Sstevel@tonic-gate 294*0Sstevel@tonic-gate #ifndef KERNEL 295*0Sstevel@tonic-gate /* 296*0Sstevel@tonic-gate * don't use DEFTAPE. 297*0Sstevel@tonic-gate */ 298*0Sstevel@tonic-gate #define DEFTAPE "/dev/rmt/0" 299*0Sstevel@tonic-gate #endif 300*0Sstevel@tonic-gate 301*0Sstevel@tonic-gate /* 302*0Sstevel@tonic-gate * Layout of minor device byte 303*0Sstevel@tonic-gate * 15 - 8 7 6 5 4 3 2 1 0 304*0Sstevel@tonic-gate * -------------------------------------------- 305*0Sstevel@tonic-gate * | | | | | | | | |----| Unit #. lower 2 bits 306*0Sstevel@tonic-gate * | | | | | | | |---------- No rewind on close bit.... 307*0Sstevel@tonic-gate * | | | | | |----|--------------- Density Select 308*0Sstevel@tonic-gate * | | | | |------------------------- Resrvd.(add. campus dens. bit) 309*0Sstevel@tonic-gate * | | | |------------------------------ BSD behavior 310*0Sstevel@tonic-gate * |----|----|----------------------------------- Unit # bit 2-6 311*0Sstevel@tonic-gate */ 312*0Sstevel@tonic-gate 313*0Sstevel@tonic-gate #define MTUNIT(dev) (((getminor(dev) & 0xff80) >> 5) + \ 314*0Sstevel@tonic-gate (getminor(dev) & 0x3)) 315*0Sstevel@tonic-gate #define MT_NOREWIND (1 <<2) 316*0Sstevel@tonic-gate #define MT_DENSITY_MASK (3 <<3) 317*0Sstevel@tonic-gate #define MT_DENSITY1 (0 <<3) /* Lowest density/format */ 318*0Sstevel@tonic-gate #define MT_DENSITY2 (1 <<3) 319*0Sstevel@tonic-gate #define MT_DENSITY3 (2 <<3) 320*0Sstevel@tonic-gate #define MT_DENSITY4 (3 <<3) /* Highest density/format */ 321*0Sstevel@tonic-gate #define MTMINOR(unit) (((unit & 0x7fc) << 5) + (unit & 0x3)) 322*0Sstevel@tonic-gate #define MT_BSD (1 <<6) /* BSD behavior on close */ 323*0Sstevel@tonic-gate #define MT_DENSITY(dev) ((getminor(dev) & MT_DENSITY_MASK) >> 3) 324*0Sstevel@tonic-gate 325*0Sstevel@tonic-gate 326*0Sstevel@tonic-gate #ifdef __cplusplus 327*0Sstevel@tonic-gate } 328*0Sstevel@tonic-gate #endif 329*0Sstevel@tonic-gate 330*0Sstevel@tonic-gate #endif /* _SYS_MTIO_H */ 331