scsi_tape.h revision 1.17
1 /* $NetBSD: scsi_tape.h,v 1.17 1998/08/17 00:49:01 mycroft Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Originally written by Julian Elischer (julian (at) tfs.com) 41 * for TRW Financial Systems. 42 * 43 * TRW Financial Systems, in accordance with their agreement with Carnegie 44 * Mellon University, makes this software available to CMU to distribute 45 * or use in any manner that they see fit as long as this message is kept with 46 * the software. For this reason TFS also grants any other persons or 47 * organisations permission to use or modify this software. 48 * 49 * TFS supplies this software to be publicly redistributed 50 * on the understanding that TFS is not responsible for the correct 51 * functioning of this software in any circumstances. 52 * 53 * Ported to run under 386BSD by Julian Elischer (julian (at) tfs.com) Sept 1992 54 */ 55 56 /* 57 * SCSI tape interface description 58 */ 59 60 /* 61 * SCSI command formats 62 */ 63 64 #define READ 0x08 65 #define WRITE 0x0a 66 struct scsi_rw_tape { 67 u_int8_t opcode; 68 u_int8_t byte2; 69 #define SRW_FIXED 0x01 70 u_int8_t len[3]; 71 u_int8_t control; 72 }; 73 74 #define SPACE 0x11 75 struct scsi_space { 76 u_int8_t opcode; 77 u_int8_t byte2; 78 #define SS_CODE 0x03 79 #define SP_BLKS 0x00 80 #define SP_FILEMARKS 0x01 81 #define SP_SEQ_FILEMARKS 0x02 82 #define SP_EOM 0x03 83 u_int8_t number[3]; 84 u_int8_t control; 85 }; 86 87 #define WRITE_FILEMARKS 0x10 88 struct scsi_write_filemarks { 89 u_int8_t opcode; 90 u_int8_t byte2; 91 u_int8_t number[3]; 92 u_int8_t control; 93 }; 94 95 #define REWIND 0x01 96 struct scsi_rewind { 97 u_int8_t opcode; 98 u_int8_t byte2; 99 #define SR_IMMED 0x01 100 u_int8_t unused[3]; 101 u_int8_t control; 102 }; 103 104 #define LOAD 0x1b 105 struct scsi_load { 106 u_int8_t opcode; 107 u_int8_t byte2; 108 #define SL_IMMED 0x01 109 u_int8_t unused[2]; 110 u_int8_t how; 111 #define LD_UNLOAD 0x00 112 #define LD_LOAD 0x01 113 #define LD_RETENSION 0x02 114 u_int8_t control; 115 }; 116 117 #define ERASE 0x19 118 struct scsi_erase { 119 u_int8_t opcode; 120 u_int8_t byte2; 121 #define SE_LONG 0x01 122 #define SE_IMMED 0x02 123 u_int8_t unused[3]; 124 u_int8_t control; 125 }; 126 127 #define READ_BLOCK_LIMITS 0x05 128 struct scsi_block_limits { 129 u_int8_t opcode; 130 u_int8_t byte2; 131 u_int8_t unused[3]; 132 u_int8_t control; 133 }; 134 135 struct scsi_block_limits_data { 136 u_int8_t reserved; 137 u_int8_t max_length[3]; /* Most significant */ 138 u_int8_t min_length[2]; /* Most significant */ 139 }; 140 141 /* See SCSI-II spec 9.3.3.1 */ 142 struct scsi_tape_dev_conf_page { 143 u_int8_t pagecode; /* 0x10 */ 144 u_int8_t pagelength; /* 0x0e */ 145 u_int8_t byte2; 146 #define SMT_CAP 0x40 /* change active partition */ 147 #define SMT_CAF 0x20 /* change active format */ 148 #define SMT_AFMASK 0x1f /* active format mask */ 149 u_int8_t active_partition; 150 u_int8_t wb_full_ratio; 151 u_int8_t rb_empty_ratio; 152 u_int8_t wrdelay_time[2]; 153 u_int8_t byte8; 154 #define SMT_DBR 0x80 /* data buffer recovery */ 155 #define SMT_BIS 0x40 /* block identifiers supported */ 156 #define SMT_RSMK 0x20 /* report setmarks */ 157 #define SMT_AVC 0x10 /* automatic velocity control */ 158 #define SMT_SOCF_MASK 0xc0 /* stop on consecutive formats */ 159 #define SMT_RBO 0x20 /* recover buffer order */ 160 #define SMT_REW 0x10 /* report early warning */ 161 u_int8_t gap_size; 162 u_int8_t byte10; 163 #define SMT_EODDEFINED 0xe0 /* EOD defined */ 164 #define SMT_EEG 0x10 /* enable EOD generation */ 165 #define SMT_SEW 0x80 /* synchronize at early warning */ 166 u_int8_t ew_bufsize[3]; 167 u_int8_t sel_comp_alg; 168 #define SMT_COMP_NONE 0x00 169 #define SMT_COMP_DEFAULT 0x01 170 u_int8_t reserved; 171 }; 172 173 /* from SCSI-3: SSC-Rev10 (6/97) */ 174 struct scsi_tape_dev_compression_page { 175 u_int8_t pagecode; /* 0x0f */ 176 u_int8_t pagelength; /* 0x0e */ 177 u_int8_t dce_dcc; 178 #define DCP_DCE 0x80 /* enable compression */ 179 #define DCP_DCC 0x40 /* compression capable */ 180 u_int8_t dde_red; 181 #define DCP_DDE 0x80 /* enable decompression */ 182 /* There's a lot of gup about bits 5,6 for reporting exceptions */ 183 /* in transitions between compressed and uncompressed data- but */ 184 /* mostly we want the default (0), which is to report a MEDIUM */ 185 /* ERROR when a read transitions into data that can't be de- */ 186 /* compressed */ 187 u_int8_t comp_alg[4]; /* compression algorithm */ 188 u_int8_t decomp_alg[4]; /* de-"" */ 189 u_int8_t reserved[4]; 190 }; 191 192 /* defines for the device specific byte in the mode select/sense header */ 193 #define SMH_DSP_SPEED 0x0F 194 #define SMH_DSP_BUFF_MODE 0x70 195 #define SMH_DSP_BUFF_MODE_OFF 0x00 196 #define SMH_DSP_BUFF_MODE_ON 0x10 197 #define SMH_DSP_BUFF_MODE_MLTI 0x20 198 #define SMH_DSP_WRITE_PROT 0x80 199 200 /* A special for the CIPHER ST150S(old drive) */ 201 struct block_desc_cipher { 202 u_int8_t density; 203 u_int8_t nblocks[3]; 204 u_int8_t reserved; 205 u_int8_t blklen[3]; 206 u_int8_t other; 207 #define ST150_SEC 0x01 /* soft error count */ 208 #define SR150_AUI 0x02 /* autoload inhibit */ 209 }; 210 211 212 #define READ_POSITION 0x34 213 struct scsi_tape_read_position { 214 u_int8_t opcode; /* READ_POSITION */ 215 u_int8_t byte1; /* set LSB to read hardware block pos */ 216 u_int8_t reserved[8]; 217 }; 218 219 #define LOCATE 0x2B 220 struct scsi_tape_locate { 221 u_int8_t opcode; 222 u_int8_t byte2; 223 u_int8_t reserved1; 224 u_int8_t blkaddr[4]; 225 u_int8_t reserved2; 226 u_int8_t partition; 227 u_int8_t control; 228 }; 229 230 /********************************************************************** 231 from the scsi2 spec 232 Value Tracks Density(bpi) Code Type Reference Note 233 0x1 9 800 NRZI R X3.22-1983 2 234 0x2 9 1600 PE R X3.39-1986 2 235 0x3 9 6250 GCR R X3.54-1986 2 236 0x5 4/9 8000 GCR C X3.136-1986 1 237 0x6 9 3200 PE R X3.157-1987 2 238 0x7 4 6400 IMFM C X3.116-1986 1 239 0x8 4 8000 GCR CS X3.158-1986 1 240 0x9 18 37871 GCR C X3B5/87-099 2 241 0xA 22 6667 MFM C X3B5/86-199 1 242 0xB 4 1600 PE C X3.56-1986 1 243 0xC 24 12690 GCR C HI-TC1 1,5 244 0xD 24 25380 GCR C HI-TC2 1,5 245 0xF 15 10000 GCR C QIC-120 1,5 246 0x10 18 10000 GCR C QIC-150 1,5 247 0x11 26 16000 GCR C QIC-320(525?) 1,5 248 0x12 30 51667 RLL C QIC-1350 1,5 249 0x13 1 61000 DDS CS X3B5/88-185A 4 250 0x14 1 43245 RLL CS X3.202-1991 4 251 0x15 1 45434 RLL CS ECMA TC17 4 252 0x16 48 10000 MFM C X3.193-1990 1 253 0x17 48 42500 MFM C X3B5/91-174 1 254 0x45 73 67733 RLL C QIC3095 255 256 where Code means: 257 NRZI Non Return to Zero, change on ones 258 GCR Group Code Recording 259 PE Phase Encoded 260 IMFM Inverted Modified Frequency Modulation 261 MFM Modified Frequency Modulation 262 DDS Dat Data Storage 263 RLL Run Length Encoding 264 265 where Type means: 266 R Reel-to-Reel 267 C Cartridge 268 CS cassette 269 270 where Notes means: 271 1 Serial Recorded 272 2 Parallel Recorded 273 3 Old format know as QIC-11 274 4 Helical Scan 275 5 Not ANSI standard, rather industry standard. 276 ********************************************************************/ 277 278 #define HALFINCH_800 0x01 279 #define HALFINCH_1600 0x02 280 #define HALFINCH_6250 0x03 281 #define QIC_11 0x04 /* from Archive 150S Theory of Op. XXX */ 282 #define QIC_24 0x05 /* may be bad, works for CIPHER ST150S XXX */ 283 #define QIC_120 0x0f 284 #define QIC_150 0x10 285 #define QIC_320 0x11 286 #define QIC_525 0x11 287 #define QIC_1320 0x12 288 #define DDS 0x13 289 #define DAT_1 0x13 290 #define QIC_3095 0x45 291
Indexes created Fri Sep 26 20:09:58 GMT 2025