Annotation of sys/scsi/scsi_tape.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: scsi_tape.h,v 1.7 1998/01/07 17:28:38 deraadt Exp $ */
2: /* $NetBSD: scsi_tape.h,v 1.9 1996/05/24 02:04:47 thorpej Exp $ */
3:
4: /*
5: * Copyright (c) 1994 Charles Hannum. All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: * 3. All advertising materials mentioning features or use of this software
16: * must display the following acknowledgement:
17: * This product includes software developed by Charles Hannum.
18: * 4. The name of the author may not be used to endorse or promote products
19: * derived from this software without specific prior written permission.
20: *
21: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31: */
32:
33: /*
34: * Originally written by Julian Elischer (julian@tfs.com)
35: * for TRW Financial Systems.
36: *
37: * TRW Financial Systems, in accordance with their agreement with Carnegie
38: * Mellon University, makes this software available to CMU to distribute
39: * or use in any manner that they see fit as long as this message is kept with
40: * the software. For this reason TFS also grants any other persons or
41: * organisations permission to use or modify this software.
42: *
43: * TFS supplies this software to be publicly redistributed
44: * on the understanding that TFS is not responsible for the correct
45: * functioning of this software in any circumstances.
46: *
47: * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
48: */
49:
50: /*
51: * SCSI tape interface description
52: */
53:
54: #ifndef _SCSI_TAPE_H_
55: #define _SCSI_TAPE_H_ 1
56:
57: /*
58: * SCSI command formats
59: */
60:
61: #define READ 0x08
62: #define WRITE 0x0a
63: struct scsi_rw_tape {
64: u_int8_t opcode;
65: u_int8_t byte2;
66: #define SRW_FIXED 0x01
67: u_int8_t len[3];
68: u_int8_t control;
69: };
70:
71: #define SPACE 0x11
72: struct scsi_space {
73: u_int8_t opcode;
74: u_int8_t byte2;
75: #define SS_CODE 0x03
76: #define SP_BLKS 0x00
77: #define SP_FILEMARKS 0x01
78: #define SP_SEQ_FILEMARKS 0x02
79: #define SP_EOM 0x03
80: u_int8_t number[3];
81: u_int8_t control;
82: };
83:
84: #define WRITE_FILEMARKS 0x10
85: struct scsi_write_filemarks {
86: u_int8_t opcode;
87: u_int8_t byte2;
88: u_int8_t number[3];
89: u_int8_t control;
90: };
91:
92: #define REWIND 0x01
93: struct scsi_rewind {
94: u_int8_t opcode;
95: u_int8_t byte2;
96: #define SR_IMMED 0x01
97: u_int8_t unused[3];
98: u_int8_t control;
99: };
100:
101: #define LOAD 0x1b
102: struct scsi_load {
103: u_int8_t opcode;
104: u_int8_t byte2;
105: #define SL_IMMED 0x01
106: u_int8_t unused[2];
107: u_int8_t how;
108: #define LD_UNLOAD 0x00
109: #define LD_LOAD 0x01
110: #define LD_RETENSION 0x02
111: u_int8_t control;
112: };
113:
114: #define ERASE 0x19
115: struct scsi_erase {
116: u_int8_t opcode;
117: u_int8_t byte2;
118: #define SE_LONG 0x01
119: #define SE_IMMED 0x02
120: u_int8_t unused[3];
121: u_int8_t control;
122: };
123:
124: #define READ_BLOCK_LIMITS 0x05
125: struct scsi_block_limits {
126: u_int8_t opcode;
127: u_int8_t byte2;
128: u_int8_t unused[3];
129: u_int8_t control;
130: };
131:
132: struct scsi_block_limits_data {
133: u_int8_t reserved;
134: u_int8_t max_length[3]; /* Most significant */
135: u_int8_t min_length[2]; /* Most significant */
136: };
137:
138: /* See SCSI-II spec 9.3.3.1 */
139: struct scsi_tape_dev_conf_page {
140: u_int8_t pagecode; /* 0x10 */
141: u_int8_t pagelength; /* 0x0e */
142: u_int8_t byte2;
143: #define SMT_CAP 0x40 /* change active partition */
144: #define SMT_CAF 0x20 /* change active format */
145: #define SMT_AFMASK 0x1f /* active format mask */
146: u_int8_t active_partition;
147: u_int8_t wb_full_ratio;
148: u_int8_t rb_empty_ratio;
149: u_int8_t wrdelay_time[2];
150: u_int8_t byte8;
151: #define SMT_DBR 0x80 /* data buffer recovery */
152: #define SMT_BIS 0x40 /* block identifiers supported */
153: #define SMT_RSMK 0x20 /* report setmarks */
154: #define SMT_AVC 0x10 /* automatic velocity control */
155: #define SMT_SOCF_MASK 0xc0 /* stop on consecutive formats */
156: #define SMT_RBO 0x20 /* recover buffer order */
157: #define SMT_REW 0x10 /* report early warning */
158: u_int8_t gap_size;
159: u_int8_t byte10;
160: #define SMT_EODDEFINED 0xe0 /* EOD defined */
161: #define SMT_EEG 0x10 /* enable EOD generation */
162: #define SMT_SEW 0x80 /* synchronize at early warning */
163: u_int8_t ew_bufsize[3];
164: u_int8_t sel_comp_alg;
165: #define SMT_COMP_NONE 0x00
166: #define SMT_COMP_DEFAULT 0x01
167: u_int8_t reserved;
168: };
169:
170: /* defines for the device specific byte in the mode select/sense header */
171: #define SMH_DSP_SPEED 0x0F
172: #define SMH_DSP_BUFF_MODE 0x70
173: #define SMH_DSP_BUFF_MODE_OFF 0x00
174: #define SMH_DSP_BUFF_MODE_ON 0x10
175: #define SMH_DSP_BUFF_MODE_MLTI 0x20
176: #define SMH_DSP_WRITE_PROT 0x80
177:
178: /* A special for the CIPHER ST150S(old drive) */
179: struct block_desc_cipher {
180: u_int8_t density;
181: u_int8_t nblocks[3];
182: u_int8_t reserved;
183: u_int8_t blklen[3];
184: u_int8_t other;
185: #define ST150_SEC 0x01 /* soft error count */
186: #define SR150_AUI 0x02 /* autoload inhibit */
187: };
188:
189: /**********************************************************************
190: from the scsi2 spec
191: Value Tracks Density(bpi) Code Type Reference Note
192: 0x1 9 800 NRZI R X3.22-1983 2
193: 0x2 9 1600 PE R X3.39-1986 2
194: 0x3 9 6250 GCR R X3.54-1986 2
195: 0x5 4/9 8000 GCR C X3.136-1986 1
196: 0x6 9 3200 PE R X3.157-1987 2
197: 0x7 4 6400 IMFM C X3.116-1986 1
198: 0x8 4 8000 GCR CS X3.158-1986 1
199: 0x9 18 37871 GCR C X3B5/87-099 2
200: 0xA 22 6667 MFM C X3B5/86-199 1
201: 0xB 4 1600 PE C X3.56-1986 1
202: 0xC 24 12690 GCR C HI-TC1 1,5
203: 0xD 24 25380 GCR C HI-TC2 1,5
204: 0xF 15 10000 GCR C QIC-120 1,5
205: 0x10 18 10000 GCR C QIC-150 1,5
206: 0x11 26 16000 GCR C QIC-320(525?) 1,5
207: 0x12 30 51667 RLL C QIC-1350 1,5
208: 0x13 1 61000 DDS CS X3B5/88-185A 4
209: 0x14 1 43245 RLL CS X3.202-1991 4
210: 0x15 1 45434 RLL CS ECMA TC17 4
211: 0x16 48 10000 MFM C X3.193-1990 1
212: 0x17 48 42500 MFM C X3B5/91-174 1
213: 0x45 73 67733 RLL C QIC3095
214:
215: where Code means:
216: NRZI Non Return to Zero, change on ones
217: GCR Group Code Recording
218: PE Phase Encoded
219: IMFM Inverted Modified Frequency Modulation
220: MFM Modified Frequency Modulation
221: DDS Dat Data Storage
222: RLL Run Length Encoding
223:
224: where Type means:
225: R Reel-to-Reel
226: C Cartridge
227: CS cassette
228:
229: where Notes means:
230: 1 Serial Recorded
231: 2 Parallel Recorded
232: 3 Old format know as QIC-11
233: 4 Helical Scan
234: 5 Not ANSI standard, rather industry standard.
235: ********************************************************************/
236:
237: #define HALFINCH_800 0x01
238: #define HALFINCH_1600 0x02
239: #define HALFINCH_6250 0x03
240: #define QIC_11 0x04 /* from Archive 150S Theory of Op. XXX */
241: #define QIC_24 0x05 /* may be bad, works for CIPHER ST150S XXX */
242: #define QIC_120 0x0f
243: #define QIC_150 0x10
244: #define QIC_320 0x11
245: #define QIC_525 0x11
246: #define QIC_1320 0x12
247: #define DDS 0x13
248: #define DAT_1 0x13
249: #define QIC_3080 0x29
250: #define QIC_3095 0x45
251:
252: #endif /* _SCSI_TAPE_H_ */
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