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1 /* $Id: mtio.h,v 1.4 1992/11/18 01:32:03 root Exp root $
2 *
3 * linux/mtio.h header file for Linux. Written by H. Bergman
4 */
5
6 #ifndef _LINUX_MTIO_H
7 #define _LINUX_MTIO_H
8
9 #include <linux/ioctl.h>
10
11 /*
12 * Structures and definitions for mag tape io control commands
13 */
14
15 /* structure for MTIOCTOP - mag tape op command */
16 struct mtop {
17 short mt_op; /* operations defined below */
18 int mt_count; /* how many of them */
19 };
20
21 /* Magnetic Tape operations [Not all operations supported by all drivers]: */
22 #define MTRESET 0 /* +reset drive in case of problems */
23 #define MTFSF 1 /* forward space over FileMark,
24 * position at first record of next file
25 */
26 #define MTBSF 2 /* backward space FileMark (position before FM) */
27 #define MTFSR 3 /* forward space record */
28 #define MTBSR 4 /* backward space record */
29 #define MTWEOF 5 /* write an end-of-file record (mark) */
30 #define MTREW 6 /* rewind */
31 #define MTOFFL 7 /* rewind and put the drive offline (eject?) */
32 #define MTNOP 8 /* no op, set status only (read with MTIOCGET) */
33 #define MTRETEN 9 /* retension tape */
34 #define MTBSFM 10 /* +backward space FileMark, position at FM */
35 #define MTFSFM 11 /* +forward space FileMark, position at FM */
36 #define MTEOM 12 /* goto end of recorded media (for appending files).
37 * MTEOM positions after the last FM, ready for
38 * appending another file.
39 */
40 #define MTERASE 13 /* erase tape -- be careful! */
41
42 #define MTRAS1 14 /* run self test 1 (nondestructive) */
43 #define MTRAS2 15 /* run self test 2 (destructive) */
44 #define MTRAS3 16 /* reserved for self test 3 */
45
46
47 #define MTSETBLK 20 /* set block length (SCSI) */
48 #define MTSETDENSITY 21 /* set tape density (SCSI) */
49 #define MTSEEK 22 /* seek to block (Tandberg, etc.) */
50 #define MTTELL 23 /* tell block (Tandber, etc.) */
51 #define MTSETDRVBUFFER 24 /* set the drive buffering according to SCSI-2 */
52 /* ordinary buffered operation with code 1 */
53
54
55 /* structure for MTIOCGET - mag tape get status command */
56
57 struct mtget {
58 long mt_type; /* type of magtape device */
59 long mt_resid; /* residual count: (not sure)
60 * number of bytes ignored, or
61 * number of files not skipped, or
62 * number of records not skipped.
63 */
64 /* the following registers are device dependent */
65 long mt_dsreg; /* status register */
66 long mt_gstat; /* generic (device independent) status */
67 long mt_erreg; /* error register */
68 /* The next two fields are not always used */
69 daddr_t mt_fileno; /* number of current file on tape */
70 daddr_t mt_blkno; /* current block number */
71 };
72
73 /*
74 * Constants for mt_type. Not all of these are supported.
75 */
76 #define MT_ISUNKNOWN 0x01
77 #define MT_ISQIC02 0x02 /* Generic QIC-02 tape streamer */
78 #define MT_ISWT5150 0x03 /* Wangtek 5150EQ, QIC-150, QIC-02 */
79 #define MT_ISARCHIVE_5945L2 0x04 /* Archive 5945L-2, QIC-24, QIC-02? */
80 #define MT_ISCMSJ500 0x05 /* CMS Jumbo 500 (QIC-02?) */
81 #define MT_ISTDC3610 0x06 /* Tandberg 6310, QIC-24 */
82 #define MT_ISARCHIVE_VP60I 0x07 /* Archive VP60i, QIC-02 */
83 #define MT_ISARCHIVE_2150L 0x08 /* Archive Viper 2150L */
84 #define MT_ISARCHIVE_2060L 0x09 /* Archive Viper 2060L */
85 #define MT_ISQIC02_ALL_FEATURES 0x0F /* Generic QIC-02 with all features */
86 #define MT_ISWT5099EEN24 0x11 /* Wangtek 5099-een24, 60MB, QIC-24 */
87 #define MT_ISEVEREX_FT40A 0x32 /* Everex FT40A (QIC-40) */
88 #define MT_ISDDS1 0x51 /* DDS device without partitions */
89 #define MT_ISDDS2 0x52 /* DDS device with partitions */
90 #define MT_ISSCSI1 0x71 /* Generic ANSI SCSI-1 tape unit */
91 #define MT_ISSCSI2 0x72 /* Generic ANSI SCSI-2 tape unit */
92
93 /* QIC-40/QIC-80 ftape supported drives.
94 * 20bit vendor ID + 0x800000
95 */
96 #define MT_ISFTAPE_UNKNOWN 0x800000
97 #define MT_ISCMSDJ10_DJ20 0x800047
98 #define MT_ISCMSDJ10_DJ20_NEW 0x8011c4
99 #define MT_ISARCHIVE_5580I 0x800005
100 #define MT_ISARCHIVE_XL9250I 0x80014a
101 #define MT_ISARCHIVE_31250Q 0x800146
102 #define MT_ISINSIGHT_80 0x810005
103 #define MT_ISCONNER_C250MQT 0x80014c
104 #define MT_ISWANGTEK_2040F 0x8001c1
105 #define MT_ISWANGTEK_2080F 0x8001c8
106 #define MT_ISIOMEGA_250 0x808880
107 #define MT_ISSUMMIT_SE150 0x800180
108 #define MT_ISSUMMIT_SE250 0x800181
109 #define MT_ISESCOM_IDTBU120E 0x800140
110
111 struct mt_tape_info {
112 long t_type; /* device type id (mt_type) */
113 char *t_name; /* descriptive name */
114 };
115
116 #define MT_TAPE_INFO { \
117 {MT_ISUNKNOWN, "Unknown type of tape device"}, \
118 {MT_ISQIC02, "Generic QIC-02 tape streamer"}, \
119 {MT_ISWT5150, "Wangtek 5150, QIC-150"}, \
120 {MT_ISARCHIVE_5945L2, "Archive 5945L-2"}, \
121 {MT_ISCMSJ500, "CMS Jumbo 500"}, \
122 {MT_ISTDC3610, "Tandberg TDC 3610, QIC-24"}, \
123 {MT_ISARCHIVE_VP60I, "Archive VP60i, QIC-02"}, \
124 {MT_ISARCHIVE_2150L, "Archive Viper 2150L"}, \
125 {MT_ISARCHIVE_2060L, "Archive Viper 2060L"}, \
126 {MT_ISWT5099EEN24, "Wangtek 5099-een24, 60MB"}, \
127 {MT_ISEVEREX_FT40A, "Everex FT40A, QIC-40"}, \
128 {MT_ISSCSI1, "Generic SCSI-1 tape"}, \
129 {MT_ISSCSI2, "Generic SCSI-2 tape"}, \
130 {MT_ISFTAPE_UNKNOWN, "Unknown floppy interface tape drive"},\
131 {MT_ISCMSDJ10_DJ20, "Colorado DJ-10/DJ-20"},\
132 {MT_ISCMSDJ10_DJ20_NEW, "Colorado DJ-10/DJ-20 (new)"},\
133 {MT_ISARCHIVE_5580I, "Archive 5580i"},\
134 {MT_ISARCHIVE_XL9250I, "Archive XL9250i [Conner/Escom]"},\
135 {MT_ISARCHIVE_31250Q, "Escom/Archive 31250Q"},\
136 {MT_ISINSIGHT_80, "Insight 80 Mb"},\
137 {MT_ISCONNER_C250MQT, "Conner C250MQT"},\
138 {MT_ISWANGTEK_2040F, "Wangtek 3040F"},\
139 {MT_ISWANGTEK_2080F, "Wangtek 3080F"},\
140 {MT_ISIOMEGA_250, "Iomega 250"},\
141 {MT_ISSUMMIT_SE150, "Summit SE 150"},\
142 {MT_ISSUMMIT_SE250, "Summit SE 250/Mountain FS8000"},\
143 {MT_ISESCOM_IDTBU120E, "Identity IDTBU120E, Escom?"},\
144 {0, NULL} \
145 }
146
147
148 /* structure for MTIOCPOS - mag tape get position command */
149
150 struct mtpos {
151 long mt_blkno; /* current block number */
152 };
153
154
155 /* mag tape io control commands */
156 #define MTIOCTOP _IOW('m', 1, struct mtop) /* do a mag tape op */
157 #define MTIOCGET _IOR('m', 2, struct mtget) /* get tape status */
158 #define MTIOCPOS _IOR('m', 3, struct mtpos) /* get tape position */
159
160
161 /* Generic Mag Tape (device independent) status macros for examining
162 * mt_gstat -- HP-UX compatible.
163 * There is room for more generic status bits here, but I don't
164 * know which of them are reserved. At least three or so should
165 * be added to make this really useful.
166 */
167 #define GMT_EOF(x) ((x) & 0x80000000)
168 #define GMT_BOT(x) ((x) & 0x40000000)
169 #define GMT_EOT(x) ((x) & 0x20000000)
170 #define GMT_SM(x) ((x) & 0x10000000) /* DDS setmark */
171 #define GMT_EOD(x) ((x) & 0x08000000) /* DDS EOD */
172 #define GMT_WR_PROT(x) ((x) & 0x04000000)
173 /* #define GMT_ ? ((x) & 0x02000000) */
174 #define GMT_ONLINE(x) ((x) & 0x01000000)
175 #define GMT_D_6250(x) ((x) & 0x00800000)
176 #define GMT_D_1600(x) ((x) & 0x00400000)
177 #define GMT_D_800(x) ((x) & 0x00200000)
178 /* #define GMT_ ? ((x) & 0x00100000) */
179 /* #define GMT_ ? ((x) & 0x00080000) */
180 #define GMT_DR_OPEN(x) ((x) & 0x00040000) /* door open (no tape) */
181 /* #define GMT_ ? ((x) & 0x00020000) */
182 #define GMT_IM_REP_EN(x) ((x) & 0x00010000) /* immediate report mode */
183 /* 16 generic status bits unused */
184
185 /* DDS drives have 'setmarks', sort of like filemarks but used to group
186 * files, rather than blocks. Not used. Not supported.
187 * I think DDS drives are DAT drives.
188 */
189
190 /* SCSI-tape specific definitions */
191 #define MT_ST_BLKSIZE_SHIFT 0
192 #define MT_ST_BLKSIZE_MASK 0xffffff
193 #define MT_ST_DENSITY_SHIFT 24
194 #define MT_ST_DENSITY_MASK 0xff000000
195
196 #define MT_ST_SOFTERR_SHIFT 0
197 #define MT_ST_SOFTERR_MASK 0xffff
198
199 #define MT_ST_OPTIONS 0xf0000000
200 #define MT_ST_BOOLEANS 0x10000000
201 #define MT_ST_WRITE_THRESHOLD 0x20000000
202 #define MT_ST_BUFFER_WRITES 0x1
203 #define MT_ST_ASYNC_WRITES 0x2
204 #define MT_ST_READ_AHEAD 0x4
205 #define MT_ST_DEBUGGING 0x8
206 #define MT_ST_TWO_FM 0x10
207
208 #endif /* _LINUX_MTIO_H */
209
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