| 1 | /* $NetBSD: scsi_tape.h,v 1.25 2008/04/28 20:23:57 martin 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 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 29 | * POSSIBILITY OF SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | /* |
| 33 | * Originally written by Julian Elischer (julian@tfs.com) |
| 34 | * for TRW Financial Systems. |
| 35 | * |
| 36 | * TRW Financial Systems, in accordance with their agreement with Carnegie |
| 37 | * Mellon University, makes this software available to CMU to distribute |
| 38 | * or use in any manner that they see fit as long as this message is kept with |
| 39 | * the software. For this reason TFS also grants any other persons or |
| 40 | * organisations permission to use or modify this software. |
| 41 | * |
| 42 | * TFS supplies this software to be publicly redistributed |
| 43 | * on the understanding that TFS is not responsible for the correct |
| 44 | * functioning of this software in any circumstances. |
| 45 | * |
| 46 | * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 |
| 47 | */ |
| 48 | |
| 49 | /* |
| 50 | * SCSI tape interface description |
| 51 | */ |
| 52 | |
| 53 | /* |
| 54 | * SCSI command formats |
| 55 | */ |
| 56 | |
| 57 | #define READ 0x08 |
| 58 | #define WRITE 0x0a |
| 59 | struct scsi_rw_tape { |
| 60 | u_int8_t opcode; |
| 61 | u_int8_t byte2; |
| 62 | #define SRW_FIXED 0x01 |
| 63 | u_int8_t len[3]; |
| 64 | u_int8_t control; |
| 65 | }; |
| 66 | |
| 67 | #define SPACE 0x11 |
| 68 | struct scsi_space { |
| 69 | u_int8_t opcode; |
| 70 | u_int8_t byte2; |
| 71 | #define SS_CODE 0x03 |
| 72 | #define SP_BLKS 0x00 |
| 73 | #define SP_FILEMARKS 0x01 |
| 74 | #define SP_SEQ_FILEMARKS 0x02 |
| 75 | #define SP_EOM 0x03 |
| 76 | u_int8_t number[3]; |
| 77 | u_int8_t control; |
| 78 | }; |
| 79 | |
| 80 | #define WRITE_FILEMARKS 0x10 |
| 81 | struct scsi_write_filemarks { |
| 82 | u_int8_t opcode; |
| 83 | u_int8_t byte2; |
| 84 | u_int8_t number[3]; |
| 85 | u_int8_t control; |
| 86 | }; |
| 87 | |
| 88 | #define REWIND 0x01 |
| 89 | struct scsi_rewind { |
| 90 | u_int8_t opcode; |
| 91 | u_int8_t byte2; |
| 92 | #define SR_IMMED 0x01 |
| 93 | u_int8_t unused[3]; |
| 94 | u_int8_t control; |
| 95 | }; |
| 96 | |
| 97 | #define LOAD 0x1b |
| 98 | struct scsi_load { |
| 99 | u_int8_t opcode; |
| 100 | u_int8_t byte2; |
| 101 | #define SL_IMMED 0x01 |
| 102 | u_int8_t unused[2]; |
| 103 | u_int8_t how; |
| 104 | #define LD_UNLOAD 0x00 |
| 105 | #define LD_LOAD 0x01 |
| 106 | #define LD_RETENSION 0x02 |
| 107 | u_int8_t control; |
| 108 | }; |
| 109 | |
| 110 | #define ERASE 0x19 |
| 111 | struct scsi_erase { |
| 112 | u_int8_t opcode; |
| 113 | u_int8_t byte2; |
| 114 | #define SE_LONG 0x01 |
| 115 | #define SE_IMMED 0x02 |
| 116 | u_int8_t unused[3]; |
| 117 | u_int8_t control; |
| 118 | }; |
| 119 | |
| 120 | #define READ_BLOCK_LIMITS 0x05 |
| 121 | struct scsi_block_limits { |
| 122 | u_int8_t opcode; |
| 123 | u_int8_t byte2; |
| 124 | u_int8_t unused[3]; |
| 125 | u_int8_t control; |
| 126 | }; |
| 127 | |
| 128 | struct scsi_block_limits_data { |
| 129 | u_int8_t reserved; |
| 130 | u_int8_t max_length[3]; /* Most significant */ |
| 131 | u_int8_t min_length[2]; /* Most significant */ |
| 132 | }; |
| 133 | |
| 134 | /* See SCSI-II spec 9.3.3.1 */ |
| 135 | struct scsi_tape_dev_conf_page { |
| 136 | u_int8_t pagecode; /* 0x10 */ |
| 137 | u_int8_t pagelength; /* 0x0e */ |
| 138 | u_int8_t byte2; |
| 139 | #define SMT_CAP 0x40 /* change active partition */ |
| 140 | #define SMT_CAF 0x20 /* change active format */ |
| 141 | #define SMT_AFMASK 0x1f /* active format mask */ |
| 142 | u_int8_t active_partition; |
| 143 | u_int8_t wb_full_ratio; |
| 144 | u_int8_t rb_empty_ratio; |
| 145 | u_int8_t wrdelay_time[2]; |
| 146 | u_int8_t byte8; |
| 147 | #define SMT_DBR 0x80 /* data buffer recovery */ |
| 148 | #define SMT_BIS 0x40 /* block identifiers supported */ |
| 149 | #define SMT_RSMK 0x20 /* report setmarks */ |
| 150 | #define SMT_AVC 0x10 /* automatic velocity control */ |
| 151 | #define SMT_SOCF_MASK 0xc0 /* stop on consecutive formats */ |
| 152 | #define SMT_RBO 0x20 /* recover buffer order */ |
| 153 | #define SMT_REW 0x10 /* report early warning */ |
| 154 | u_int8_t gap_size; |
| 155 | u_int8_t byte10; |
| 156 | #define SMT_EODDEFINED 0xe0 /* EOD defined */ |
| 157 | #define SMT_EEG 0x10 /* enable EOD generation */ |
| 158 | #define SMT_SEW 0x80 /* synchronize at early warning */ |
| 159 | u_int8_t ew_bufsize[3]; |
| 160 | u_int8_t sel_comp_alg; |
| 161 | #define SMT_COMP_NONE 0x00 |
| 162 | #define SMT_COMP_DEFAULT 0x01 |
| 163 | u_int8_t reserved; |
| 164 | }; |
| 165 | |
| 166 | /* from SCSI-3: SSC-Rev10 (6/97) */ |
| 167 | struct scsi_tape_dev_compression_page { |
| 168 | u_int8_t pagecode; /* 0x0f */ |
| 169 | u_int8_t pagelength; /* 0x0e */ |
| 170 | u_int8_t dce_dcc; |
| 171 | #define DCP_DCE 0x80 /* enable compression */ |
| 172 | #define DCP_DCC 0x40 /* compression capable */ |
| 173 | u_int8_t dde_red; |
| 174 | #define DCP_DDE 0x80 /* enable decompression */ |
| 175 | /* There's a lot of gup about bits 5,6 for reporting exceptions */ |
| 176 | /* in transitions between compressed and uncompressed data- but */ |
| 177 | /* mostly we want the default (0), which is to report a MEDIUM */ |
| 178 | /* ERROR when a read transitions into data that can't be de- */ |
| 179 | /* compressed */ |
| 180 | u_int8_t comp_alg[4]; /* compression algorithm */ |
| 181 | u_int8_t decomp_alg[4]; /* de-"" */ |
| 182 | u_int8_t reserved[4]; |
| 183 | }; |
| 184 | |
| 185 | /* defines for the device specific byte in the mode select/sense header */ |
| 186 | #define SMH_DSP_SPEED 0x0F |
| 187 | #define SMH_DSP_BUFF_MODE 0x70 |
| 188 | #define SMH_DSP_BUFF_MODE_OFF 0x00 |
| 189 | #define SMH_DSP_BUFF_MODE_ON 0x10 |
| 190 | #define SMH_DSP_BUFF_MODE_MLTI 0x20 |
| 191 | #define SMH_DSP_WRITE_PROT 0x80 |
| 192 | |
| 193 | #define READ_POSITION 0x34 |
| 194 | struct scsi_tape_read_position { |
| 195 | u_int8_t opcode; |
| 196 | u_int8_t byte1; /* set LSB to read hardware block pos */ |
| 197 | u_int8_t reserved[8]; |
| 198 | }; |
| 199 | |
| 200 | #define LOCATE 0x2B |
| 201 | struct scsi_tape_locate { |
| 202 | u_int8_t opcode; |
| 203 | u_int8_t byte2; |
| 204 | u_int8_t reserved1; |
| 205 | u_int8_t blkaddr[4]; |
| 206 | u_int8_t reserved2; |
| 207 | u_int8_t partition; |
| 208 | u_int8_t control; |
| 209 | }; |
| 210 | |
| 211 | #define HALFINCH_800 0x01 |
| 212 | #define HALFINCH_1600 0x02 |
| 213 | #define HALFINCH_6250 0x03 |
| 214 | #define QIC_11 0x04 |
| 215 | #define QIC_24 0x05 |
| 216 | #define QIC_120 0x0f |
| 217 | #define QIC_150 0x10 |
| 218 | #define QIC_320 0x11 |
| 219 | #define QIC_525 0x11 |
| 220 | #define QIC_1320 0x12 |
| 221 | #define DDS 0x13 |
| 222 | #define QIC_3095 0x45 |
| 223 | #define QIC_3220 0x47 |
| 224 | |