2 * linux/mtio.h header file for Linux. Written by H. Bergman
4 * Modified for special ioctls provided by zftape in September 1997
11 #include <linux/types.h>
12 #include <linux/ioctl.h>
13 #include <linux/qic117.h>
16 * Structures and definitions for mag tape io control commands
19 /* structure for MTIOCTOP - mag tape op command */
21 short mt_op; /* operations defined below */
22 int mt_count; /* how many of them */
25 /* Magnetic Tape operations [Not all operations supported by all drivers]: */
26 #define MTRESET 0 /* +reset drive in case of problems */
27 #define MTFSF 1 /* forward space over FileMark,
28 * position at first record of next file
30 #define MTBSF 2 /* backward space FileMark (position before FM) */
31 #define MTFSR 3 /* forward space record */
32 #define MTBSR 4 /* backward space record */
33 #define MTWEOF 5 /* write an end-of-file record (mark) */
34 #define MTREW 6 /* rewind */
35 #define MTOFFL 7 /* rewind and put the drive offline (eject?) */
36 #define MTNOP 8 /* no op, set status only (read with MTIOCGET) */
37 #define MTRETEN 9 /* retension tape */
38 #define MTBSFM 10 /* +backward space FileMark, position at FM */
39 #define MTFSFM 11 /* +forward space FileMark, position at FM */
40 #define MTEOM 12 /* goto end of recorded media (for appending files).
41 * MTEOM positions after the last FM, ready for
42 * appending another file.
44 #define MTERASE 13 /* erase tape -- be careful! */
46 #define MTRAS1 14 /* run self test 1 (nondestructive) */
47 #define MTRAS2 15 /* run self test 2 (destructive) */
48 #define MTRAS3 16 /* reserved for self test 3 */
50 #define MTSETBLK 20 /* set block length (SCSI) */
51 #define MTSETDENSITY 21 /* set tape density (SCSI) */
52 #define MTSEEK 22 /* seek to block (Tandberg, etc.) */
53 #define MTTELL 23 /* tell block (Tandberg, etc.) */
54 #define MTSETDRVBUFFER 24 /* set the drive buffering according to SCSI-2 */
55 /* ordinary buffered operation with code 1 */
56 #define MTFSS 25 /* space forward over setmarks */
57 #define MTBSS 26 /* space backward over setmarks */
58 #define MTWSM 27 /* write setmarks */
60 #define MTLOCK 28 /* lock the drive door */
61 #define MTUNLOCK 29 /* unlock the drive door */
62 #define MTLOAD 30 /* execute the SCSI load command */
63 #define MTUNLOAD 31 /* execute the SCSI unload command */
64 #define MTCOMPRESSION 32/* control compression with SCSI mode page 15 */
65 #define MTSETPART 33 /* Change the active tape partition */
66 #define MTMKPART 34 /* Format the tape with one or two partitions */
68 /* structure for MTIOCGET - mag tape get status command */
71 long mt_type; /* type of magtape device */
72 long mt_resid; /* residual count: (not sure)
73 * number of bytes ignored, or
74 * number of files not skipped, or
75 * number of records not skipped.
77 /* the following registers are device dependent */
78 long mt_dsreg; /* status register */
79 long mt_gstat; /* generic (device independent) status */
80 long mt_erreg; /* error register */
81 /* The next two fields are not always used */
82 __kernel_daddr_t mt_fileno; /* number of current file on tape */
83 __kernel_daddr_t mt_blkno; /* current block number */
89 * Constants for mt_type. Not all of these are supported,
90 * and these are not all of the ones that are supported.
92 #define MT_ISUNKNOWN 0x01
93 #define MT_ISQIC02 0x02 /* Generic QIC-02 tape streamer */
94 #define MT_ISWT5150 0x03 /* Wangtek 5150EQ, QIC-150, QIC-02 */
95 #define MT_ISARCHIVE_5945L2 0x04 /* Archive 5945L-2, QIC-24, QIC-02? */
96 #define MT_ISCMSJ500 0x05 /* CMS Jumbo 500 (QIC-02?) */
97 #define MT_ISTDC3610 0x06 /* Tandberg 6310, QIC-24 */
98 #define MT_ISARCHIVE_VP60I 0x07 /* Archive VP60i, QIC-02 */
99 #define MT_ISARCHIVE_2150L 0x08 /* Archive Viper 2150L */
100 #define MT_ISARCHIVE_2060L 0x09 /* Archive Viper 2060L */
101 #define MT_ISARCHIVESC499 0x0A /* Archive SC-499 QIC-36 controller */
102 #define MT_ISQIC02_ALL_FEATURES 0x0F /* Generic QIC-02 with all features */
103 #define MT_ISWT5099EEN24 0x11 /* Wangtek 5099-een24, 60MB, QIC-24 */
104 #define MT_ISTEAC_MT2ST 0x12 /* Teac MT-2ST 155mb drive, Teac DC-1 card (Wangtek type) */
105 #define MT_ISEVEREX_FT40A 0x32 /* Everex FT40A (QIC-40) */
106 #define MT_ISDDS1 0x51 /* DDS device without partitions */
107 #define MT_ISDDS2 0x52 /* DDS device with partitions */
108 #define MT_ISONSTREAM_SC 0x61 /* OnStream SCSI tape drives (SC-x0)
109 and SCSI emulated (DI, DP, USB) */
110 #define MT_ISSCSI1 0x71 /* Generic ANSI SCSI-1 tape unit */
111 #define MT_ISSCSI2 0x72 /* Generic ANSI SCSI-2 tape unit */
113 /* QIC-40/80/3010/3020 ftape supported drives.
114 * 20bit vendor ID + 0x800000 (see ftape-vendors.h)
116 #define MT_ISFTAPE_UNKNOWN 0x800000 /* obsolete */
117 #define MT_ISFTAPE_FLAG 0x800000
119 struct mt_tape_info {
120 long t_type; /* device type id (mt_type) */
121 char *t_name; /* descriptive name */
124 #define MT_TAPE_INFO { \
125 {MT_ISUNKNOWN, "Unknown type of tape device"}, \
126 {MT_ISQIC02, "Generic QIC-02 tape streamer"}, \
127 {MT_ISWT5150, "Wangtek 5150, QIC-150"}, \
128 {MT_ISARCHIVE_5945L2, "Archive 5945L-2"}, \
129 {MT_ISCMSJ500, "CMS Jumbo 500"}, \
130 {MT_ISTDC3610, "Tandberg TDC 3610, QIC-24"}, \
131 {MT_ISARCHIVE_VP60I, "Archive VP60i, QIC-02"}, \
132 {MT_ISARCHIVE_2150L, "Archive Viper 2150L"}, \
133 {MT_ISARCHIVE_2060L, "Archive Viper 2060L"}, \
134 {MT_ISARCHIVESC499, "Archive SC-499 QIC-36 controller"}, \
135 {MT_ISQIC02_ALL_FEATURES, "Generic QIC-02 tape, all features"}, \
136 {MT_ISWT5099EEN24, "Wangtek 5099-een24, 60MB"}, \
137 {MT_ISTEAC_MT2ST, "Teac MT-2ST 155mb data cassette drive"}, \
138 {MT_ISEVEREX_FT40A, "Everex FT40A, QIC-40"}, \
139 {MT_ISONSTREAM_SC, "OnStream SC-, DI-, DP-, or USB tape drive"}, \
140 {MT_ISSCSI1, "Generic SCSI-1 tape"}, \
141 {MT_ISSCSI2, "Generic SCSI-2 tape"}, \
146 /* structure for MTIOCPOS - mag tape get position command */
149 long mt_blkno; /* current block number */
153 /* structure for MTIOCVOLINFO, query information about the volume
154 * currently positioned at (zftape)
157 unsigned int mt_volno; /* vol-number */
158 unsigned int mt_blksz; /* blocksize used when recording */
159 unsigned int mt_rawsize; /* raw tape space consumed, in kb */
160 unsigned int mt_size; /* volume size after decompression, in kb */
161 unsigned int mt_cmpr:1; /* this volume has been compressed */
164 /* raw access to a floppy drive, read and write an arbitrary segment.
165 * For ftape/zftape to support formatting etc.
167 #define MT_FT_RD_SINGLE 0
168 #define MT_FT_RD_AHEAD 1
169 #define MT_FT_WR_ASYNC 0 /* start tape only when all buffers are full */
170 #define MT_FT_WR_MULTI 1 /* start tape, continue until buffers are empty */
171 #define MT_FT_WR_SINGLE 2 /* write a single segment and stop afterwards */
172 #define MT_FT_WR_DELETE 3 /* write deleted data marks, one segment at time */
176 unsigned mt_segno; /* the segment to read or write */
177 unsigned mt_mode; /* modes for read/write (sync/async etc.) */
178 int mt_result; /* result of r/w request, not of the ioctl */
179 void __user *mt_data; /* User space buffer: must be 29kb */
182 /* get tape capacity (ftape/zftape)
185 unsigned long mt_capacity; /* entire, uncompressed capacity
188 unsigned long mt_used; /* what has been used so far, raw
189 * uncompressed amount
193 /* possible values of the ftfmt_op field
195 #define FTFMT_SET_PARMS 1 /* set software parms */
196 #define FTFMT_GET_PARMS 2 /* get software parms */
197 #define FTFMT_FORMAT_TRACK 3 /* start formatting a tape track */
198 #define FTFMT_STATUS 4 /* monitor formatting a tape track */
199 #define FTFMT_VERIFY 5 /* verify the given segment */
202 unsigned char ft_qicstd; /* QIC-40/QIC-80/QIC-3010/QIC-3020 */
203 unsigned char ft_fmtcode; /* Refer to the QIC specs */
204 unsigned char ft_fhm; /* floppy head max */
205 unsigned char ft_ftm; /* floppy track max */
206 unsigned short ft_spt; /* segments per track */
207 unsigned short ft_tpc; /* tracks per cartridge */
211 unsigned int ft_track; /* track to format */
212 unsigned char ft_gap3; /* size of gap3, for FORMAT_TRK */
216 unsigned int ft_segment; /* segment currently being formatted */
220 unsigned int ft_segment; /* segment to verify */
221 unsigned long ft_bsm; /* bsm as result of VERIFY cmd */
225 unsigned int fmt_op; /* operation to perform */
227 struct ftfmtparms fmt_parms; /* format parameters */
228 struct ftfmttrack fmt_track; /* ctrl while formatting */
229 struct ftfmtstatus fmt_status;
230 struct ftfmtverify fmt_verify; /* for verifying */
235 unsigned int ft_wait_before; /* timeout to wait for drive to get ready
236 * before command is sent. Milliseconds
238 qic117_cmd_t ft_cmd; /* command to send */
239 unsigned char ft_parm_cnt; /* zero: no parm is sent. */
240 unsigned char ft_parms[3]; /* parameter(s) to send to
241 * the drive. The parms are nibbles
242 * driver sends cmd + 2 step pulses */
243 unsigned int ft_result_bits; /* if non zero, number of bits
244 * returned by the tape drive
246 unsigned int ft_result; /* the result returned by the tape drive*/
247 unsigned int ft_wait_after; /* timeout to wait for drive to get ready
248 * after command is sent. 0: don't wait */
249 int ft_status; /* status returned by ready wait
250 * undefined if timeout was 0.
252 int ft_error; /* error code if error status was set by
257 /* mag tape io control commands */
258 #define MTIOCTOP _IOW('m', 1, struct mtop) /* do a mag tape op */
259 #define MTIOCGET _IOR('m', 2, struct mtget) /* get tape status */
260 #define MTIOCPOS _IOR('m', 3, struct mtpos) /* get tape position */
262 /* The next two are used by the QIC-02 driver for runtime reconfiguration.
263 * See tpqic02.h for struct mtconfiginfo.
265 #define MTIOCGETCONFIG _IOR('m', 4, struct mtconfiginfo) /* get tape config */
266 #define MTIOCSETCONFIG _IOW('m', 5, struct mtconfiginfo) /* set tape config */
268 /* the next six are used by the floppy ftape drivers and its frontends
269 * sorry, but MTIOCTOP commands are write only.
271 #define MTIOCRDFTSEG _IOWR('m', 6, struct mtftseg) /* read a segment */
272 #define MTIOCWRFTSEG _IOWR('m', 7, struct mtftseg) /* write a segment */
273 #define MTIOCVOLINFO _IOR('m', 8, struct mtvolinfo) /* info about volume */
274 #define MTIOCGETSIZE _IOR('m', 9, struct mttapesize)/* get cartridge size*/
275 #define MTIOCFTFORMAT _IOWR('m', 10, struct mtftformat) /* format ftape */
276 #define MTIOCFTCMD _IOWR('m', 11, struct mtftcmd) /* send QIC-117 cmd */
278 /* Generic Mag Tape (device independent) status macros for examining
279 * mt_gstat -- HP-UX compatible.
280 * There is room for more generic status bits here, but I don't
281 * know which of them are reserved. At least three or so should
282 * be added to make this really useful.
284 #define GMT_EOF(x) ((x) & 0x80000000)
285 #define GMT_BOT(x) ((x) & 0x40000000)
286 #define GMT_EOT(x) ((x) & 0x20000000)
287 #define GMT_SM(x) ((x) & 0x10000000) /* DDS setmark */
288 #define GMT_EOD(x) ((x) & 0x08000000) /* DDS EOD */
289 #define GMT_WR_PROT(x) ((x) & 0x04000000)
290 /* #define GMT_ ? ((x) & 0x02000000) */
291 #define GMT_ONLINE(x) ((x) & 0x01000000)
292 #define GMT_D_6250(x) ((x) & 0x00800000)
293 #define GMT_D_1600(x) ((x) & 0x00400000)
294 #define GMT_D_800(x) ((x) & 0x00200000)
295 /* #define GMT_ ? ((x) & 0x00100000) */
296 /* #define GMT_ ? ((x) & 0x00080000) */
297 #define GMT_DR_OPEN(x) ((x) & 0x00040000) /* door open (no tape) */
298 /* #define GMT_ ? ((x) & 0x00020000) */
299 #define GMT_IM_REP_EN(x) ((x) & 0x00010000) /* immediate report mode */
300 #define GMT_CLN(x) ((x) & 0x00008000) /* cleaning requested */
301 /* 15 generic status bits unused */
304 /* SCSI-tape specific definitions */
305 /* Bitfield shifts in the status */
306 #define MT_ST_BLKSIZE_SHIFT 0
307 #define MT_ST_BLKSIZE_MASK 0xffffff
308 #define MT_ST_DENSITY_SHIFT 24
309 #define MT_ST_DENSITY_MASK 0xff000000
311 #define MT_ST_SOFTERR_SHIFT 0
312 #define MT_ST_SOFTERR_MASK 0xffff
314 /* Bitfields for the MTSETDRVBUFFER ioctl */
315 #define MT_ST_OPTIONS 0xf0000000
316 #define MT_ST_BOOLEANS 0x10000000
317 #define MT_ST_SETBOOLEANS 0x30000000
318 #define MT_ST_CLEARBOOLEANS 0x40000000
319 #define MT_ST_WRITE_THRESHOLD 0x20000000
320 #define MT_ST_DEF_BLKSIZE 0x50000000
321 #define MT_ST_DEF_OPTIONS 0x60000000
322 #define MT_ST_TIMEOUTS 0x70000000
323 #define MT_ST_SET_TIMEOUT (MT_ST_TIMEOUTS | 0x000000)
324 #define MT_ST_SET_LONG_TIMEOUT (MT_ST_TIMEOUTS | 0x100000)
325 #define MT_ST_SET_CLN 0x80000000
327 #define MT_ST_BUFFER_WRITES 0x1
328 #define MT_ST_ASYNC_WRITES 0x2
329 #define MT_ST_READ_AHEAD 0x4
330 #define MT_ST_DEBUGGING 0x8
331 #define MT_ST_TWO_FM 0x10
332 #define MT_ST_FAST_MTEOM 0x20
333 #define MT_ST_AUTO_LOCK 0x40
334 #define MT_ST_DEF_WRITES 0x80
335 #define MT_ST_CAN_BSR 0x100
336 #define MT_ST_NO_BLKLIMS 0x200
337 #define MT_ST_CAN_PARTITIONS 0x400
338 #define MT_ST_SCSI2LOGICAL 0x800
339 #define MT_ST_SYSV 0x1000
340 #define MT_ST_NOWAIT 0x2000
342 /* The mode parameters to be controlled. Parameter chosen with bits 20-28 */
343 #define MT_ST_CLEAR_DEFAULT 0xfffff
344 #define MT_ST_DEF_DENSITY (MT_ST_DEF_OPTIONS | 0x100000)
345 #define MT_ST_DEF_COMPRESSION (MT_ST_DEF_OPTIONS | 0x200000)
346 #define MT_ST_DEF_DRVBUFFER (MT_ST_DEF_OPTIONS | 0x300000)
348 /* The offset for the arguments for the special HP changer load command. */
349 #define MT_ST_HPLOADER_OFFSET 10000
351 #endif /* _LINUX_MTIO_H */