scsi_tape.h revision 1.13
1 /* $NetBSD: scsi_tape.h,v 1.13 1998/02/13 04:19:26 enami Exp $ */ 2 3 /* 4 * Copyright (c) 1994 Charles Hannum. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Charles Hannum. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _DEV_SCSIPI_SCSI_TAPE_H_ 33 #define _DEV_SCSIPI_SCSI_TAPE_H_ 34 35 /* 36 * Originally written by Julian Elischer (julian (at) tfs.com) 37 * for TRW Financial Systems. 38 * 39 * TRW Financial Systems, in accordance with their agreement with Carnegie 40 * Mellon University, makes this software available to CMU to distribute 41 * or use in any manner that they see fit as long as this message is kept with 42 * the software. For this reason TFS also grants any other persons or 43 * organisations permission to use or modify this software. 44 * 45 * TFS supplies this software to be publicly redistributed 46 * on the understanding that TFS is not responsible for the correct 47 * functioning of this software in any circumstances. 48 * 49 * Ported to run under 386BSD by Julian Elischer (julian (at) tfs.com) Sept 1992 50 */ 51 52 /* 53 * SCSI tape interface description 54 */ 55 56 /* 57 * SCSI command formats 58 */ 59 60 #define READ 0x08 61 #define WRITE 0x0a 62 struct scsi_rw_tape { 63 u_int8_t opcode; 64 u_int8_t byte2; 65 #define SRW_FIXED 0x01 66 u_int8_t len[3]; 67 u_int8_t control; 68 }; 69 70 #define SPACE 0x11 71 struct scsi_space { 72 u_int8_t opcode; 73 u_int8_t byte2; 74 #define SS_CODE 0x03 75 #define SP_BLKS 0x00 76 #define SP_FILEMARKS 0x01 77 #define SP_SEQ_FILEMARKS 0x02 78 #define SP_EOM 0x03 79 u_int8_t number[3]; 80 u_int8_t control; 81 }; 82 83 #define WRITE_FILEMARKS 0x10 84 struct scsi_write_filemarks { 85 u_int8_t opcode; 86 u_int8_t byte2; 87 u_int8_t number[3]; 88 u_int8_t control; 89 }; 90 91 #define REWIND 0x01 92 struct scsi_rewind { 93 u_int8_t opcode; 94 u_int8_t byte2; 95 #define SR_IMMED 0x01 96 u_int8_t unused[3]; 97 u_int8_t control; 98 }; 99 100 #define LOAD 0x1b 101 struct scsi_load { 102 u_int8_t opcode; 103 u_int8_t byte2; 104 #define SL_IMMED 0x01 105 u_int8_t unused[2]; 106 u_int8_t how; 107 #define LD_UNLOAD 0x00 108 #define LD_LOAD 0x01 109 #define LD_RETENSION 0x02 110 u_int8_t control; 111 }; 112 113 #define ERASE 0x19 114 struct scsi_erase { 115 u_int8_t opcode; 116 u_int8_t byte2; 117 #define SE_LONG 0x01 118 #define SE_IMMED 0x02 119 u_int8_t unused[3]; 120 u_int8_t control; 121 }; 122 123 #define READ_BLOCK_LIMITS 0x05 124 struct scsi_block_limits { 125 u_int8_t opcode; 126 u_int8_t byte2; 127 u_int8_t unused[3]; 128 u_int8_t control; 129 }; 130 131 struct scsi_block_limits_data { 132 u_int8_t reserved; 133 u_int8_t max_length[3]; /* Most significant */ 134 u_int8_t min_length[2]; /* Most significant */ 135 }; 136 137 /* See SCSI-II spec 9.3.3.1 */ 138 struct scsi_tape_dev_conf_page { 139 u_int8_t pagecode; /* 0x10 */ 140 u_int8_t pagelength; /* 0x0e */ 141 u_int8_t byte2; 142 #define SMT_CAP 0x40 /* change active partition */ 143 #define SMT_CAF 0x20 /* change active format */ 144 #define SMT_AFMASK 0x1f /* active format mask */ 145 u_int8_t active_partition; 146 u_int8_t wb_full_ratio; 147 u_int8_t rb_empty_ratio; 148 u_int8_t wrdelay_time[2]; 149 u_int8_t byte8; 150 #define SMT_DBR 0x80 /* data buffer recovery */ 151 #define SMT_BIS 0x40 /* block identifiers supported */ 152 #define SMT_RSMK 0x20 /* report setmarks */ 153 #define SMT_AVC 0x10 /* automatic velocity control */ 154 #define SMT_SOCF_MASK 0xc0 /* stop on consecutive formats */ 155 #define SMT_RBO 0x20 /* recover buffer order */ 156 #define SMT_REW 0x10 /* report early warning */ 157 u_int8_t gap_size; 158 u_int8_t byte10; 159 #define SMT_EODDEFINED 0xe0 /* EOD defined */ 160 #define SMT_EEG 0x10 /* enable EOD generation */ 161 #define SMT_SEW 0x80 /* synchronize at early warning */ 162 u_int8_t ew_bufsize[3]; 163 u_int8_t sel_comp_alg; 164 #define SMT_COMP_NONE 0x00 165 #define SMT_COMP_DEFAULT 0x01 166 u_int8_t reserved; 167 }; 168 169 /* from SCSI-3: SSC-Rev10 (6/97) */ 170 struct scsi_tape_dev_compression_page { 171 u_int8_t pagecode; /* 0x0f */ 172 u_int8_t pagelength; /* 0x0e */ 173 u_int8_t dce_dcc; 174 #define DCP_DCE 0x80 /* enable compression */ 175 #define DCP_DCC 0x40 /* compression capable */ 176 u_int8_t dde_red; 177 #define DCP_DDE 0x80 /* enable decompression */ 178 /* There's a lot of gup about bits 5,6 for reporting exceptions */ 179 /* in transitions between compressed and uncompressed data- but */ 180 /* mostly we want the default (0), which is to report a MEDIUM */ 181 /* ERROR when a read transitions into data that can't be de- */ 182 /* compressed */ 183 u_int8_t comp_alg[4]; /* compression algorithm */ 184 u_int8_t decomp_alg[4]; /* de-"" */ 185 u_int8_t reserved[4]; 186 }; 187 188 /* defines for the device specific byte in the mode select/sense header */ 189 #define SMH_DSP_SPEED 0x0F 190 #define SMH_DSP_BUFF_MODE 0x70 191 #define SMH_DSP_BUFF_MODE_OFF 0x00 192 #define SMH_DSP_BUFF_MODE_ON 0x10 193 #define SMH_DSP_BUFF_MODE_MLTI 0x20 194 #define SMH_DSP_WRITE_PROT 0x80 195 196 /* A special for the CIPHER ST150S(old drive) */ 197 struct block_desc_cipher { 198 u_int8_t density; 199 u_int8_t nblocks[3]; 200 u_int8_t reserved; 201 u_int8_t blklen[3]; 202 u_int8_t other; 203 #define ST150_SEC 0x01 /* soft error count */ 204 #define SR150_AUI 0x02 /* autoload inhibit */ 205 }; 206 207 208 #define READ_POSITION 0x34 209 struct scsi_tape_read_position { 210 u_int8_t opcode; /* READ_POSITION */ 211 u_int8_t byte1; /* set LSB to read hardware block pos */ 212 u_int8_t reserved[8]; 213 }; 214 215 #define LOCATE 0x2B 216 217 /********************************************************************** 218 from the scsi2 spec 219 Value Tracks Density(bpi) Code Type Reference Note 220 0x1 9 800 NRZI R X3.22-1983 2 221 0x2 9 1600 PE R X3.39-1986 2 222 0x3 9 6250 GCR R X3.54-1986 2 223 0x5 4/9 8000 GCR C X3.136-1986 1 224 0x6 9 3200 PE R X3.157-1987 2 225 0x7 4 6400 IMFM C X3.116-1986 1 226 0x8 4 8000 GCR CS X3.158-1986 1 227 0x9 18 37871 GCR C X3B5/87-099 2 228 0xA 22 6667 MFM C X3B5/86-199 1 229 0xB 4 1600 PE C X3.56-1986 1 230 0xC 24 12690 GCR C HI-TC1 1,5 231 0xD 24 25380 GCR C HI-TC2 1,5 232 0xF 15 10000 GCR C QIC-120 1,5 233 0x10 18 10000 GCR C QIC-150 1,5 234 0x11 26 16000 GCR C QIC-320(525?) 1,5 235 0x12 30 51667 RLL C QIC-1350 1,5 236 0x13 1 61000 DDS CS X3B5/88-185A 4 237 0x14 1 43245 RLL CS X3.202-1991 4 238 0x15 1 45434 RLL CS ECMA TC17 4 239 0x16 48 10000 MFM C X3.193-1990 1 240 0x17 48 42500 MFM C X3B5/91-174 1 241 0x45 73 67733 RLL C QIC3095 242 243 where Code means: 244 NRZI Non Return to Zero, change on ones 245 GCR Group Code Recording 246 PE Phase Encoded 247 IMFM Inverted Modified Frequency Modulation 248 MFM Modified Frequency Modulation 249 DDS Dat Data Storage 250 RLL Run Length Encoding 251 252 where Type means: 253 R Reel-to-Reel 254 C Cartridge 255 CS cassette 256 257 where Notes means: 258 1 Serial Recorded 259 2 Parallel Recorded 260 3 Old format know as QIC-11 261 4 Helical Scan 262 5 Not ANSI standard, rather industry standard. 263 ********************************************************************/ 264 265 #define HALFINCH_800 0x01 266 #define HALFINCH_1600 0x02 267 #define HALFINCH_6250 0x03 268 #define QIC_11 0x04 /* from Archive 150S Theory of Op. XXX */ 269 #define QIC_24 0x05 /* may be bad, works for CIPHER ST150S XXX */ 270 #define QIC_120 0x0f 271 #define QIC_150 0x10 272 #define QIC_320 0x11 273 #define QIC_525 0x11 274 #define QIC_1320 0x12 275 #define DDS 0x13 276 #define DAT_1 0x13 277 #define QIC_3095 0x45 278 279 #endif /* _DEV_SCSIPI_SCSI_TAPE_H_ */ 280
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