1 /*-
2 * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer,
10 * without modification, immediately at the beginning of the file.
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 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD: src/sys/dev/ata/atapi-tape.c,v 1.101 2006/01/05 21:27:19 sos Exp $
27 */
28
29 #include "opt_ata.h"
30
31 #include <sys/param.h>
32 #include <sys/bio.h>
33 #include <sys/buf.h>
34 #include <sys/bus.h>
35 #include <sys/conf.h>
36 #include <sys/device.h>
37 #include <sys/devicestat.h>
38 #include <sys/disk.h>
39 #include <sys/kernel.h>
40 #include <sys/libkern.h>
41 #include <sys/malloc.h>
42 #include <sys/module.h>
43 #include <sys/mtio.h>
44 #include <sys/nata.h>
45 #include <sys/systm.h>
46
47 #include "ata-all.h"
48 #include "atapi-tape.h"
49 #include "ata_if.h"
50
51 /* local implementation, to trigger a warning */
52 static inline void
biofinish(struct bio * bp,struct bio * x __unused,int error)53 biofinish(struct bio *bp, struct bio *x __unused, int error)
54 {
55 struct buf *bbp = bp->bio_buf;
56
57 bbp->b_flags |= B_ERROR;
58 bbp->b_error = error;
59 biodone(bp);
60 }
61
62 /* device structure */
63 static d_open_t ast_open;
64 static d_close_t ast_close;
65 static d_ioctl_t ast_ioctl;
66 static d_strategy_t ast_strategy;
67 static struct dev_ops ast_ops = {
68 { "ast", 119, D_TAPE | D_TRACKCLOSE },
69 .d_open = ast_open,
70 .d_close = ast_close,
71 .d_read = physread,
72 .d_write = physwrite,
73 .d_ioctl = ast_ioctl,
74 .d_strategy = ast_strategy
75 };
76
77 /* prototypes */
78 static int ast_sense(device_t);
79 static void ast_describe(device_t);
80 static void ast_done(struct ata_request *);
81 static int ast_mode_sense(device_t, int, void *, int);
82 static int ast_mode_select(device_t, void *, int);
83 static int ast_write_filemark(device_t, u_int8_t);
84 static int ast_read_position(device_t, int, struct ast_readposition *);
85 static int ast_space(device_t, u_int8_t, int32_t);
86 static int ast_locate(device_t, int, u_int32_t);
87 static int ast_prevent_allow(device_t, int);
88 static int ast_load_unload(device_t, u_int8_t);
89 static int ast_rewind(device_t);
90 static int ast_erase(device_t);
91 static int ast_test_ready(device_t);
92 static int ast_wait_dsc(device_t, int);
93
94 /* internal vars */
95 static u_int64_t ast_total = 0;
96 static MALLOC_DEFINE(M_AST, "ast_driver", "ATAPI tape driver buffers");
97
98 static int
ast_probe(device_t dev)99 ast_probe(device_t dev)
100 {
101 struct ata_device *atadev = device_get_softc(dev);
102
103 if ((atadev->param.config & ATA_PROTO_ATAPI) &&
104 (atadev->param.config & ATA_ATAPI_TYPE_MASK) == ATA_ATAPI_TYPE_TAPE)
105 return 0;
106 else
107 return ENXIO;
108 }
109
110 static int
ast_attach(device_t dev)111 ast_attach(device_t dev)
112 {
113 struct ata_channel *ch = device_get_softc(device_get_parent(dev));
114 struct ata_device *atadev = device_get_softc(dev);
115 struct ast_softc *stp;
116 struct ast_readposition position;
117 cdev_t cdev;
118
119 stp = kmalloc(sizeof(struct ast_softc), M_AST, M_WAITOK | M_ZERO);
120 device_set_ivars(dev, stp);
121 ATA_SETMODE(device_get_parent(dev), dev);
122
123 if (ast_sense(dev)) {
124 device_set_ivars(dev, NULL);
125 kfree(stp, M_AST);
126 return ENXIO;
127 }
128 if (!strcmp(atadev->param.model, "OnStream DI-30")) {
129 struct ast_transferpage transfer;
130 struct ast_identifypage identify;
131
132 stp->flags |= F_ONSTREAM;
133 bzero(&transfer, sizeof(struct ast_transferpage));
134 ast_mode_sense(dev, ATAPI_TAPE_TRANSFER_PAGE,
135 &transfer, sizeof(transfer));
136 bzero(&identify, sizeof(struct ast_identifypage));
137 ast_mode_sense(dev, ATAPI_TAPE_IDENTIFY_PAGE,
138 &identify, sizeof(identify));
139 strncpy(identify.ident, "FBSD", 4);
140 ast_mode_select(dev, &identify, sizeof(identify));
141 ast_read_position(dev, 0, &position);
142 }
143
144 devstat_add_entry(&stp->stats, "ast", device_get_unit(dev), DEV_BSIZE,
145 DEVSTAT_NO_ORDERED_TAGS,
146 DEVSTAT_TYPE_SEQUENTIAL | DEVSTAT_TYPE_IF_IDE,
147 DEVSTAT_PRIORITY_TAPE);
148 cdev = make_dev(&ast_ops, 2 * device_get_unit(dev), UID_ROOT, GID_OPERATOR,
149 0640, "ast%d", device_get_unit(dev));
150 reference_dev(cdev);
151 cdev->si_drv1 = dev;
152 if (ch->dma)
153 cdev->si_iosize_max = ch->dma->max_iosize;
154 else
155 cdev->si_iosize_max = min(MAXPHYS,64*1024);
156 stp->cdev1 = cdev;
157 cdev = make_dev(&ast_ops, 2 * device_get_unit(dev) + 1, UID_ROOT,
158 GID_OPERATOR, 0640, "nast%d", device_get_unit(dev));
159 reference_dev(cdev);
160 cdev->si_drv1 = dev;
161 if (ch->dma)
162 cdev->si_iosize_max = ch->dma->max_iosize;
163 else
164 cdev->si_iosize_max = min(MAXPHYS,64*1024);
165 stp->cdev2 = cdev;
166
167 /* announce we are here and ready */
168 ast_describe(dev);
169 return 0;
170 }
171
172 static int
ast_detach(device_t dev)173 ast_detach(device_t dev)
174 {
175 struct ast_softc *stp = device_get_ivars(dev);
176
177 /* detroy devices from the system so we dont get any further requests */
178 destroy_dev(stp->cdev1);
179 destroy_dev(stp->cdev2);
180
181 /* fail requests on the queue and any thats "in flight" for this device */
182 ata_fail_requests(dev);
183
184 /* dont leave anything behind */
185 dev_ops_remove_minor(&ast_ops, /*dkunitmask(), */dkmakeunit(device_get_unit(dev)));
186 devstat_remove_entry(&stp->stats);
187 device_set_ivars(dev, NULL);
188 kfree(stp, M_AST);
189 return 0;
190 }
191
192 static void
ast_shutdown(device_t dev)193 ast_shutdown(device_t dev)
194 {
195 struct ata_device *atadev = device_get_softc(dev);
196
197 if (atadev->param.support.command2 & ATA_SUPPORT_FLUSHCACHE)
198 ata_controlcmd(dev, ATA_FLUSHCACHE, 0, 0, 0);
199 }
200
201 static int
ast_reinit(device_t dev)202 ast_reinit(device_t dev)
203 {
204 struct ata_channel *ch = device_get_softc(device_get_parent(dev));
205 struct ata_device *atadev = device_get_softc(dev);
206 struct ast_softc *stp = device_get_ivars(dev);
207
208 if (((atadev->unit == ATA_MASTER) && !(ch->devices & ATA_ATAPI_MASTER)) ||
209 ((atadev->unit == ATA_SLAVE) && !(ch->devices & ATA_ATAPI_SLAVE))) {
210 device_set_ivars(dev, NULL);
211 kfree(stp, M_AST);
212 return 1;
213 }
214 ATA_SETMODE(device_get_parent(dev), dev);
215 return 0;
216 }
217
218 static int
ast_open(struct dev_open_args * ap)219 ast_open(struct dev_open_args *ap)
220 {
221 device_t dev = ap->a_head.a_dev->si_drv1;
222 struct ata_device *atadev = device_get_softc(dev);
223 struct ast_softc *stp = device_get_ivars(dev);
224
225 if (!stp)
226 return ENXIO;
227 if (!device_is_attached(dev))
228 return EBUSY;
229
230 ast_test_ready(dev);
231 if (stp->cap.lock)
232 ast_prevent_allow(dev, 1);
233 if (ast_sense(dev))
234 device_printf(dev, "sense media type failed\n");
235
236 atadev->flags &= ~ATA_D_MEDIA_CHANGED;
237 stp->flags &= ~(F_DATA_WRITTEN | F_FM_WRITTEN);
238 ast_total = 0;
239 return 0;
240 }
241
242 static int
ast_close(struct dev_close_args * ap)243 ast_close(struct dev_close_args *ap)
244 {
245 device_t dev = ap->a_head.a_dev->si_drv1;
246 struct ast_softc *stp = device_get_ivars(dev);
247 cdev_t cdev = ap->a_head.a_dev;
248
249 /* flush buffers, some drives fail here, they should report ctl = 0 */
250 if (stp->cap.ctl && (stp->flags & F_DATA_WRITTEN))
251 ast_write_filemark(dev, 0);
252
253 /* write filemark if data written to tape */
254 if (!(stp->flags & F_ONSTREAM) &&
255 (stp->flags & (F_DATA_WRITTEN | F_FM_WRITTEN)) == F_DATA_WRITTEN)
256 ast_write_filemark(dev, ATAPI_WF_WRITE);
257
258 /* if minor is even rewind on close */
259 if (!(minor(cdev) & 0x01))
260 ast_rewind(dev);
261
262 if (stp->cap.lock && count_dev(cdev) == 1)
263 ast_prevent_allow(dev, 0);
264
265 stp->flags &= ~F_CTL_WARN;
266 #ifdef AST_DEBUG
267 device_printf(dev, "%ju total bytes transferred\n", (uintmax_t)ast_total);
268 #endif
269 return 0;
270 }
271
272 static int
ast_ioctl(struct dev_ioctl_args * ap)273 ast_ioctl(struct dev_ioctl_args *ap)
274 {
275 device_t dev = ap->a_head.a_dev->si_drv1;
276 struct ast_softc *stp = device_get_ivars(dev);
277 int error = 0;
278
279 switch (ap->a_cmd) {
280 case MTIOCGET:
281 {
282 struct mtget *g = (struct mtget *)ap->a_data;
283
284 bzero(g, sizeof(struct mtget));
285 g->mt_type = 7;
286 g->mt_density = 1;
287 g->mt_blksiz = stp->blksize;
288 g->mt_comp = stp->cap.compress;
289 g->mt_density0 = 0; g->mt_density1 = 0;
290 g->mt_density2 = 0; g->mt_density3 = 0;
291 g->mt_blksiz0 = 0; g->mt_blksiz1 = 0;
292 g->mt_blksiz2 = 0; g->mt_blksiz3 = 0;
293 g->mt_comp0 = 0; g->mt_comp1 = 0;
294 g->mt_comp2 = 0; g->mt_comp3 = 0;
295 }
296 break;
297
298 case MTIOCTOP:
299 {
300 int i;
301 struct mtop *mt = (struct mtop *)ap->a_data;
302
303 switch ((int16_t) (mt->mt_op)) {
304
305 case MTWEOF:
306 for (i=0; i < mt->mt_count && !error; i++)
307 error = ast_write_filemark(dev, ATAPI_WF_WRITE);
308 break;
309
310 case MTFSF:
311 if (mt->mt_count)
312 error = ast_space(dev, ATAPI_SP_FM, mt->mt_count);
313 break;
314
315 case MTBSF:
316 if (mt->mt_count)
317 error = ast_space(dev, ATAPI_SP_FM, -(mt->mt_count));
318 break;
319
320 case MTREW:
321 error = ast_rewind(dev);
322 break;
323
324 case MTOFFL:
325 error = ast_load_unload(dev, ATAPI_SS_EJECT);
326 break;
327
328 case MTNOP:
329 error = ast_write_filemark(dev, 0);
330 break;
331
332 case MTERASE:
333 error = ast_erase(dev);
334 break;
335
336 case MTEOD:
337 error = ast_space(dev, ATAPI_SP_EOD, 0);
338 break;
339
340 case MTRETENS:
341 error = ast_load_unload(dev, ATAPI_SS_RETENSION|ATAPI_SS_LOAD);
342 break;
343
344 case MTFSR:
345 case MTBSR:
346 case MTCACHE:
347 case MTNOCACHE:
348 case MTSETBSIZ:
349 case MTSETDNSTY:
350 case MTCOMP:
351 default:
352 error = EINVAL;
353 }
354 }
355 break;
356
357 case MTIOCRDSPOS:
358 {
359 struct ast_readposition position;
360
361 if ((error = ast_read_position(dev, 0, &position)))
362 break;
363 *(u_int32_t *)ap->a_data = position.tape;
364 }
365 break;
366
367 case MTIOCRDHPOS:
368 {
369 struct ast_readposition position;
370
371 if ((error = ast_read_position(dev, 1, &position)))
372 break;
373 *(u_int32_t *)ap->a_data = position.tape;
374 }
375 break;
376
377 case MTIOCSLOCATE:
378 error = ast_locate(dev, 0, *(u_int32_t *)ap->a_data);
379 break;
380
381 case MTIOCHLOCATE:
382 error = ast_locate(dev, 1, *(u_int32_t *)ap->a_data);
383 break;
384
385 default:
386 error = ata_device_ioctl(dev, ap->a_cmd, ap->a_data);
387 }
388 return error;
389 }
390
391 static int
ast_strategy(struct dev_strategy_args * ap)392 ast_strategy(struct dev_strategy_args *ap)
393 {
394 device_t dev = ap->a_head.a_dev->si_drv1;
395 struct bio *bp = ap->a_bio;
396 struct buf *bbp = bp->bio_buf;
397 struct ata_device *atadev = device_get_softc(dev);
398 struct ast_softc *stp = device_get_ivars(dev);
399 struct ata_request *request;
400 u_int32_t blkcount;
401 int8_t ccb[16];
402
403 /* if it's a null transfer, return immediatly. */
404 if (bbp->b_bcount == 0) {
405 bbp->b_resid = 0;
406 biodone(bp);
407 return 0;
408 }
409 if (!(bbp->b_cmd == BUF_CMD_READ) && (stp->flags & F_WRITEPROTECT)) {
410 biofinish(bp, NULL, EPERM);
411 return 0;
412 }
413 if (bbp->b_cmd != BUF_CMD_READ && bbp->b_cmd != BUF_CMD_WRITE) {
414 biofinish(bp, NULL, EIO);
415 return 0;
416 }
417
418 /* check for != blocksize requests */
419 if (bbp->b_bcount % stp->blksize) {
420 device_printf(dev, "transfers must be multiple of %d\n", stp->blksize);
421 biofinish(bp, NULL, EIO);
422 return 0;
423 }
424
425 /* warn about transfers bigger than the device suggests */
426 if (bbp->b_bcount > stp->blksize * stp->cap.ctl) {
427 if ((stp->flags & F_CTL_WARN) == 0) {
428 device_printf(dev, "WARNING: CTL exceeded %d>%d\n",
429 bbp->b_bcount, stp->blksize * stp->cap.ctl);
430 stp->flags |= F_CTL_WARN;
431 }
432 }
433
434 bzero(ccb, sizeof(ccb));
435
436 if (bbp->b_cmd == BUF_CMD_READ)
437 ccb[0] = ATAPI_READ;
438 else
439 ccb[0] = ATAPI_WRITE;
440
441 blkcount = bbp->b_bcount / stp->blksize;
442
443 ccb[1] = 1;
444 ccb[2] = blkcount >> 16;
445 ccb[3] = blkcount >> 8;
446 ccb[4] = blkcount;
447
448 if (!(request = ata_alloc_request())) {
449 biofinish(bp, NULL, ENOMEM);
450 return 0;
451 }
452 request->dev = dev;
453 request->bio = bp;
454 bcopy(ccb, request->u.atapi.ccb,
455 (atadev->param.config & ATA_PROTO_MASK) ==
456 ATA_PROTO_ATAPI_12 ? 16 : 12);
457 request->data = bbp->b_data;
458 request->bytecount = blkcount * stp->blksize;
459 request->transfersize = min(request->bytecount, 65534);
460 request->timeout = (ccb[0] == ATAPI_WRITE_BIG) ? 180 : 120;
461 request->retries = 2;
462 request->callback = ast_done;
463
464 switch (bbp->b_cmd) {
465 case BUF_CMD_READ:
466 request->flags |= (ATA_R_ATAPI | ATA_R_READ);
467 break;
468 case BUF_CMD_WRITE:
469 request->flags |= (ATA_R_ATAPI | ATA_R_WRITE);
470 break;
471 default:
472 panic("bbp->b_cmd");
473 }
474 devstat_start_transaction(&stp->stats);
475 ata_queue_request(request);
476 return 0;
477 }
478
479 static void
ast_done(struct ata_request * request)480 ast_done(struct ata_request *request)
481 {
482 struct ast_softc *stp = device_get_ivars(request->dev);
483 struct bio *bp = request->bio;
484 struct buf *bbp = bp->bio_buf;
485
486 /* finish up transfer */
487 if ((bbp->b_error = request->result))
488 bbp->b_flags |= B_ERROR;
489 if (bbp->b_cmd == BUF_CMD_WRITE)
490 stp->flags |= F_DATA_WRITTEN;
491 bbp->b_resid = bbp->b_bcount - request->donecount;
492 ast_total += (bbp->b_bcount - bbp->b_resid);
493 devstat_end_transaction_buf(&stp->stats, bbp);
494 biodone(bp);
495 ata_free_request(request);
496 }
497
498 static int
ast_sense(device_t dev)499 ast_sense(device_t dev)
500 {
501 struct ast_softc *stp = device_get_ivars(dev);
502 int count;
503
504 /* get drive capabilities, some bugridden drives needs this repeated */
505 for (count = 0 ; count < 5 ; count++) {
506 if (!ast_mode_sense(dev, ATAPI_TAPE_CAP_PAGE,
507 &stp->cap, sizeof(stp->cap)) &&
508 stp->cap.page_code == ATAPI_TAPE_CAP_PAGE) {
509 if (stp->cap.blk32k)
510 stp->blksize = 32768;
511 if (stp->cap.blk1024)
512 stp->blksize = 1024;
513 if (stp->cap.blk512)
514 stp->blksize = 512;
515 if (!stp->blksize)
516 continue;
517 stp->cap.max_speed = ntohs(stp->cap.max_speed);
518 stp->cap.max_defects = ntohs(stp->cap.max_defects);
519 stp->cap.ctl = ntohs(stp->cap.ctl);
520 stp->cap.speed = ntohs(stp->cap.speed);
521 stp->cap.buffer_size = ntohs(stp->cap.buffer_size);
522 return 0;
523 }
524 }
525 return 1;
526 }
527
528 static int
ast_mode_sense(device_t dev,int page,void * pagebuf,int pagesize)529 ast_mode_sense(device_t dev, int page, void *pagebuf, int pagesize)
530 {
531 int8_t ccb[16] = { ATAPI_MODE_SENSE, 0x08, page, pagesize>>8, pagesize,
532 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
533 int error;
534
535 error = ata_atapicmd(dev, ccb, pagebuf, pagesize, ATA_R_READ, 10);
536 return error;
537 }
538
539 static int
ast_mode_select(device_t dev,void * pagebuf,int pagesize)540 ast_mode_select(device_t dev, void *pagebuf, int pagesize)
541 {
542 int8_t ccb[16] = { ATAPI_MODE_SELECT, 0x10, 0, pagesize>>8, pagesize,
543 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
544
545 return ata_atapicmd(dev, ccb, pagebuf, pagesize, 0, 10);
546 }
547
548 static int
ast_write_filemark(device_t dev,u_int8_t function)549 ast_write_filemark(device_t dev, u_int8_t function)
550 {
551 struct ast_softc *stp = device_get_ivars(dev);
552 int8_t ccb[16] = { ATAPI_WEOF, 0x01, 0, 0, function, 0, 0, 0,
553 0, 0, 0, 0, 0, 0, 0, 0 };
554 int error;
555
556 if (stp->flags & F_ONSTREAM)
557 ccb[4] = 0x00; /* only flush buffers supported */
558 else {
559 if (function) {
560 if (stp->flags & F_FM_WRITTEN)
561 stp->flags &= ~F_DATA_WRITTEN;
562 else
563 stp->flags |= F_FM_WRITTEN;
564 }
565 }
566 error = ata_atapicmd(dev, ccb, NULL, 0, 0, 10);
567 if (error)
568 return error;
569 return ast_wait_dsc(dev, 10*60);
570 }
571
572 static int
ast_read_position(device_t dev,int hard,struct ast_readposition * position)573 ast_read_position(device_t dev, int hard, struct ast_readposition *position)
574 {
575 int8_t ccb[16] = { ATAPI_READ_POSITION, (hard ? 0x01 : 0), 0, 0, 0, 0, 0, 0,
576 0, 0, 0, 0, 0, 0, 0, 0 };
577 int error;
578
579 error = ata_atapicmd(dev, ccb, (caddr_t)position,
580 sizeof(struct ast_readposition), ATA_R_READ, 10);
581 position->tape = ntohl(position->tape);
582 position->host = ntohl(position->host);
583 return error;
584 }
585
586 static int
ast_space(device_t dev,u_int8_t function,int32_t count)587 ast_space(device_t dev, u_int8_t function, int32_t count)
588 {
589 int8_t ccb[16] = { ATAPI_SPACE, function, count>>16, count>>8, count,
590 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
591
592 return ata_atapicmd(dev, ccb, NULL, 0, 0, 60*60);
593 }
594
595 static int
ast_locate(device_t dev,int hard,u_int32_t pos)596 ast_locate(device_t dev, int hard, u_int32_t pos)
597 {
598 int8_t ccb[16] = { ATAPI_LOCATE, 0x01 | (hard ? 0x4 : 0), 0,
599 pos>>24, pos>>16, pos>>8, pos,
600 0, 0, 0, 0, 0, 0, 0, 0, 0 };
601 int error;
602
603 error = ata_atapicmd(dev, ccb, NULL, 0, 0, 10);
604 if (error)
605 return error;
606 return ast_wait_dsc(dev, 60*60);
607 }
608
609 static int
ast_prevent_allow(device_t dev,int lock)610 ast_prevent_allow(device_t dev, int lock)
611 {
612 int8_t ccb[16] = { ATAPI_PREVENT_ALLOW, 0, 0, 0, lock,
613 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
614
615 return ata_atapicmd(dev, ccb, NULL, 0, 0, 30);
616 }
617
618 static int
ast_load_unload(device_t dev,u_int8_t function)619 ast_load_unload(device_t dev, u_int8_t function)
620 {
621 struct ast_softc *stp = device_get_ivars(dev);
622 int8_t ccb[16] = { ATAPI_START_STOP, 0x01, 0, 0, function, 0, 0, 0,
623 0, 0, 0, 0, 0, 0, 0, 0 };
624 int error;
625
626 if ((function & ATAPI_SS_EJECT) && !stp->cap.eject)
627 return 0;
628 error = ata_atapicmd(dev, ccb, NULL, 0, 0, 10);
629 if (error)
630 return error;
631 tsleep((caddr_t)&error, 0, "astlu", 1 * hz);
632 if (function == ATAPI_SS_EJECT)
633 return 0;
634 return ast_wait_dsc(dev, 60*60);
635 }
636
637 static int
ast_rewind(device_t dev)638 ast_rewind(device_t dev)
639 {
640 int8_t ccb[16] = { ATAPI_REZERO, 0x01, 0, 0, 0, 0, 0, 0,
641 0, 0, 0, 0, 0, 0, 0, 0 };
642 int error;
643
644 error = ata_atapicmd(dev, ccb, NULL, 0, 0, 10);
645 if (error)
646 return error;
647 return ast_wait_dsc(dev, 60*60);
648 }
649
650 static int
ast_erase(device_t dev)651 ast_erase(device_t dev)
652 {
653 int8_t ccb[16] = { ATAPI_ERASE, 3, 0, 0, 0, 0, 0, 0,
654 0, 0, 0, 0, 0, 0, 0, 0 };
655 int error;
656
657 if ((error = ast_rewind(dev)))
658 return error;
659
660 return ata_atapicmd(dev, ccb, NULL, 0, 0, 60*60);
661 }
662
663 static int
ast_test_ready(device_t dev)664 ast_test_ready(device_t dev)
665 {
666 int8_t ccb[16] = { ATAPI_TEST_UNIT_READY, 0, 0, 0, 0,
667 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
668
669 return ata_atapicmd(dev, ccb, NULL, 0, 0, 30);
670 }
671
672 static int
ast_wait_dsc(device_t dev,int timeout)673 ast_wait_dsc(device_t dev, int timeout)
674 {
675 int error = 0;
676 int8_t ccb[16] = { ATAPI_POLL_DSC, 0, 0, 0, 0,
677 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
678
679 timeout *= hz;
680 while (timeout > 0) {
681 error = ata_atapicmd(dev, ccb, NULL, 0, 0, 0);
682 if (error != EBUSY)
683 break;
684 tsleep(&error, 0, "atpwt", hz / 2);
685 timeout -= (hz / 2);
686 }
687 return error;
688 }
689
690 static void
ast_describe(device_t dev)691 ast_describe(device_t dev)
692 {
693 struct ata_channel *ch = device_get_softc(device_get_parent(dev));
694 struct ata_device *atadev = device_get_softc(dev);
695 struct ast_softc *stp = device_get_ivars(dev);
696
697 if (bootverbose) {
698 device_printf(dev, "<%.40s/%.8s> tape drive at ata%d as %s\n",
699 atadev->param.model, atadev->param.revision,
700 device_get_unit(ch->dev), ata_unit2str(atadev));
701 device_printf(dev, "%dKB/s, ", stp->cap.max_speed);
702 kprintf("transfer limit %d blk%s, ",
703 stp->cap.ctl, (stp->cap.ctl > 1) ? "s" : "");
704 kprintf("%dKB buffer, ", (stp->cap.buffer_size * DEV_BSIZE) / 1024);
705 kprintf("%s\n", ata_mode2str(atadev->mode));
706 device_printf(dev, "Medium: ");
707 switch (stp->cap.medium_type) {
708 case 0x00:
709 kprintf("none"); break;
710 case 0x17:
711 kprintf("Travan 1 (400 Mbyte)"); break;
712 case 0xb6:
713 kprintf("Travan 4 (4 Gbyte)"); break;
714 case 0xda:
715 kprintf("OnStream ADR (15Gyte)"); break;
716 default:
717 kprintf("unknown (0x%x)", stp->cap.medium_type);
718 }
719 if (stp->cap.readonly) kprintf(", readonly");
720 if (stp->cap.reverse) kprintf(", reverse");
721 if (stp->cap.eformat) kprintf(", eformat");
722 if (stp->cap.qfa) kprintf(", qfa");
723 if (stp->cap.lock) kprintf(", lock");
724 if (stp->cap.locked) kprintf(", locked");
725 if (stp->cap.prevent) kprintf(", prevent");
726 if (stp->cap.eject) kprintf(", eject");
727 if (stp->cap.disconnect) kprintf(", disconnect");
728 if (stp->cap.ecc) kprintf(", ecc");
729 if (stp->cap.compress) kprintf(", compress");
730 if (stp->cap.blk512) kprintf(", 512b");
731 if (stp->cap.blk1024) kprintf(", 1024b");
732 if (stp->cap.blk32k) kprintf(", 32kb");
733 kprintf("\n");
734 }
735 else {
736 device_printf(dev, "TAPE <%.40s/%.8s> at ata%d-%s %s\n",
737 atadev->param.model, atadev->param.revision,
738 device_get_unit(ch->dev), ata_unit2str(atadev),
739 ata_mode2str(atadev->mode));
740 }
741 }
742
743 static device_method_t ast_methods[] = {
744 /* device interface */
745 DEVMETHOD(device_probe, ast_probe),
746 DEVMETHOD(device_attach, ast_attach),
747 DEVMETHOD(device_detach, ast_detach),
748 DEVMETHOD(device_shutdown, ast_shutdown),
749
750 /* ATA methods */
751 DEVMETHOD(ata_reinit, ast_reinit),
752
753 DEVMETHOD_END
754 };
755
756 static driver_t ast_driver = {
757 "ast",
758 ast_methods,
759 0,
760 };
761
762 static devclass_t ast_devclass;
763
764 DRIVER_MODULE(ast, ata, ast_driver, ast_devclass, NULL, NULL);
765 MODULE_VERSION(ast, 1);
766 MODULE_DEPEND(ast, ata, 1, 1, 1);
767