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DEVFS - remove dev_ops_add(), dev_ops_get(), and get_dev()
[dragonfly.git] / sys / dev / disk / nata / atapi-tape.c
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c1b3d7c5
TS		 1/*-
2 * Copyright (c) 1998 - 2006 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 $
b106cb48 27 * $DragonFly: src/sys/dev/disk/nata/atapi-tape.c,v 1.4 2008/08/30 02:56:11 dillon Exp $
c1b3d7c5
TS		 28 */
29
30#include "opt_ata.h"
31
32#include <sys/param.h>
33#include <sys/bio.h>
34#include <sys/buf.h>
35#include <sys/bus.h>
36#include <sys/conf.h>
37#include <sys/device.h>
38#include <sys/devicestat.h>
39#include <sys/disk.h>
40#include <sys/kernel.h>
41#include <sys/libkern.h>
42#include <sys/malloc.h>
43#include <sys/module.h>
44#include <sys/mtio.h>
45#include <sys/nata.h>
46#include <sys/systm.h>
47
48#include "ata-all.h"
49#include "atapi-tape.h"
50#include "ata_if.h"
51
52/* device structure */
53static d_open_t ast_open;
54static d_close_t ast_close;
55static d_ioctl_t ast_ioctl;
56static d_strategy_t ast_strategy;
57static struct dev_ops ast_ops = {
58 { "ast", 119, D_TAPE | D_TRACKCLOSE },
59 .d_open = ast_open,
60 .d_close = ast_close,
61 .d_read = physread,
62 .d_write = physwrite,
63 .d_ioctl = ast_ioctl,
64 .d_strategy = ast_strategy
65};
66
67/* prototypes */
68static int ast_sense(device_t);
69static void ast_describe(device_t);
70static void ast_done(struct ata_request *);
71static int ast_mode_sense(device_t, int, void *, int);
72static int ast_mode_select(device_t, void *, int);
73static int ast_write_filemark(device_t, u_int8_t);
74static int ast_read_position(device_t, int, struct ast_readposition *);
75static int ast_space(device_t, u_int8_t, int32_t);
76static int ast_locate(device_t, int, u_int32_t);
77static int ast_prevent_allow(device_t, int);
78static int ast_load_unload(device_t, u_int8_t);
79static int ast_rewind(device_t);
80static int ast_erase(device_t);
81static int ast_test_ready(device_t);
82static int ast_wait_dsc(device_t, int);
83
84/* internal vars */
85static u_int64_t ast_total = 0;
86static MALLOC_DEFINE(M_AST, "ast_driver", "ATAPI tape driver buffers");
87
88static int
89ast_probe(device_t dev)
90{
91 struct ata_device *atadev = device_get_softc(dev);
92
93 if ((atadev->param.config & ATA_PROTO_ATAPI) &&
94 (atadev->param.config & ATA_ATAPI_TYPE_MASK) == ATA_ATAPI_TYPE_TAPE)
95 return 0;
96 else
97 return ENXIO;
98}
99
100static int
101ast_attach(device_t dev)
102{
103 struct ata_channel *ch = device_get_softc(device_get_parent(dev));
104 struct ata_device *atadev = device_get_softc(dev);
105 struct ast_softc *stp;
106 struct ast_readposition position;
107 cdev_t cdev;
108
a01741bb 109 stp = kmalloc(sizeof(struct ast_softc), M_AST, M_WAITOK | M_ZERO);
c1b3d7c5
TS		 110 device_set_ivars(dev, stp);
111 ATA_SETMODE(device_get_parent(dev), dev);
112
113 if (ast_sense(dev)) {
114 device_set_ivars(dev, NULL);
115 kfree(stp, M_AST);
116 return ENXIO;
117 }
118 if (!strcmp(atadev->param.model, "OnStream DI-30")) {
119 struct ast_transferpage transfer;
120 struct ast_identifypage identify;
121
122 stp->flags |= F_ONSTREAM;
123 bzero(&transfer, sizeof(struct ast_transferpage));
124 ast_mode_sense(dev, ATAPI_TAPE_TRANSFER_PAGE,
125 &transfer, sizeof(transfer));
126 bzero(&identify, sizeof(struct ast_identifypage));
127 ast_mode_sense(dev, ATAPI_TAPE_IDENTIFY_PAGE,
128 &identify, sizeof(identify));
129 strncpy(identify.ident, "FBSD", 4);
130 ast_mode_select(dev, &identify, sizeof(identify));
131 ast_read_position(dev, 0, &position);
132 }
133
134 devstat_add_entry(&stp->stats, "ast", device_get_unit(dev), DEV_BSIZE,
135 DEVSTAT_NO_ORDERED_TAGS,
136 DEVSTAT_TYPE_SEQUENTIAL | DEVSTAT_TYPE_IF_IDE,
137 DEVSTAT_PRIORITY_TAPE);
c1b3d7c5
TS		 138 cdev = make_dev(&ast_ops, 2 * device_get_unit(dev), UID_ROOT, GID_OPERATOR,
139 0640, "ast%d", device_get_unit(dev));
140 reference_dev(cdev);
141 cdev->si_drv1 = dev;
142 if (ch->dma)
143 cdev->si_iosize_max = ch->dma->max_iosize;
144 else
145 cdev->si_iosize_max = DFLTPHYS;
146 stp->cdev1 = cdev;
147 cdev = make_dev(&ast_ops, 2 * device_get_unit(dev) + 1, UID_ROOT,
148 GID_OPERATOR, 0640, "nast%d", device_get_unit(dev));
149 reference_dev(cdev);
150 cdev->si_drv1 = dev;
151 if (ch->dma)
152 cdev->si_iosize_max = ch->dma->max_iosize;
153 else
154 cdev->si_iosize_max = DFLTPHYS;
155 stp->cdev2 = cdev;
156
157 /* announce we are here and ready */
158 ast_describe(dev);
159 return 0;
160}
161
162static int
163ast_detach(device_t dev)
164{
165 struct ast_softc *stp = device_get_ivars(dev);
166
167 /* detroy devices from the system so we dont get any further requests */
168 destroy_dev(stp->cdev1);
169 destroy_dev(stp->cdev2);
170
171 /* fail requests on the queue and any thats "in flight" for this device */
172 ata_fail_requests(dev);
173
174 /* dont leave anything behind */
cd29885a
MD		 175 kprintf("devfs: Please check that only the right ata tape device was removed!!!\n");
176 dev_ops_remove_minor(&ast_ops, /*dkunitmask(), */dkmakeunit(device_get_unit(dev)));
c1b3d7c5
TS		 177 devstat_remove_entry(&stp->stats);
178 device_set_ivars(dev, NULL);
179 kfree(stp, M_AST);
180 return 0;
181}
182
183static void
184ast_shutdown(device_t dev)
185{
186 struct ata_device *atadev = device_get_softc(dev);
187
188 if (atadev->param.support.command2 & ATA_SUPPORT_FLUSHCACHE)
189 ata_controlcmd(dev, ATA_FLUSHCACHE, 0, 0, 0);
190}
191
192static int
193ast_reinit(device_t dev)
194{
195 struct ata_channel *ch = device_get_softc(device_get_parent(dev));
196 struct ata_device *atadev = device_get_softc(dev);
197 struct ast_softc *stp = device_get_ivars(dev);
198
199 if (((atadev->unit == ATA_MASTER) && !(ch->devices & ATA_ATAPI_MASTER)) ||
200 ((atadev->unit == ATA_SLAVE) && !(ch->devices & ATA_ATAPI_SLAVE))) {
201 device_set_ivars(dev, NULL);
202 kfree(stp, M_AST);
203 return 1;
204 }
205 ATA_SETMODE(device_get_parent(dev), dev);
206 return 0;
207}
208
209static int
210ast_open(struct dev_open_args *ap)
211{
212 device_t dev = ap->a_head.a_dev->si_drv1;
213 struct ata_device *atadev = device_get_softc(dev);
214 struct ast_softc *stp = device_get_ivars(dev);
215
216 if (!stp)
217 return ENXIO;
218 if (!device_is_attached(dev))
219 return EBUSY;
220
221 ast_test_ready(dev);
222 if (stp->cap.lock)
223 ast_prevent_allow(dev, 1);
224 if (ast_sense(dev))
225 device_printf(dev, "sense media type failed\n");
226
227 atadev->flags &= ~ATA_D_MEDIA_CHANGED;
228 stp->flags &= ~(F_DATA_WRITTEN | F_FM_WRITTEN);
229 ast_total = 0;
230 return 0;
231}
232
233static int
234ast_close(struct dev_close_args *ap)
235{
236 device_t dev = ap->a_head.a_dev->si_drv1;
237 struct ast_softc *stp = device_get_ivars(dev);
238 cdev_t cdev = ap->a_head.a_dev;
239
240 /* flush buffers, some drives fail here, they should report ctl = 0 */
241 if (stp->cap.ctl && (stp->flags & F_DATA_WRITTEN))
242 ast_write_filemark(dev, 0);
243
244 /* write filemark if data written to tape */
245 if (!(stp->flags & F_ONSTREAM) &&
246 (stp->flags & (F_DATA_WRITTEN | F_FM_WRITTEN)) == F_DATA_WRITTEN)
247 ast_write_filemark(dev, ATAPI_WF_WRITE);
248
249 /* if minor is even rewind on close */
250 if (!(minor(cdev) & 0x01))
251 ast_rewind(dev);
252
253 if (stp->cap.lock && count_dev(cdev) == 1)
254 ast_prevent_allow(dev, 0);
255
256 stp->flags &= ~F_CTL_WARN;
257#ifdef AST_DEBUG
258 device_printf(dev, "%llu total bytes transferred\n",
259 (unsigned long long)ast_total);
260#endif
261 return 0;
262}
263
264static int
265ast_ioctl(struct dev_ioctl_args *ap)
266{
267 device_t dev = ap->a_head.a_dev->si_drv1;
268 struct ast_softc *stp = device_get_ivars(dev);
269 int error = 0;
270
271 switch (ap->a_cmd) {
272 case MTIOCGET:
273 {
274 struct mtget *g = (struct mtget *)ap->a_data;
275
276 bzero(g, sizeof(struct mtget));
277 g->mt_type = 7;
278 g->mt_density = 1;
279 g->mt_blksiz = stp->blksize;
280 g->mt_comp = stp->cap.compress;
281 g->mt_density0 = 0; g->mt_density1 = 0;
282 g->mt_density2 = 0; g->mt_density3 = 0;
283 g->mt_blksiz0 = 0; g->mt_blksiz1 = 0;
284 g->mt_blksiz2 = 0; g->mt_blksiz3 = 0;
285 g->mt_comp0 = 0; g->mt_comp1 = 0;
286 g->mt_comp2 = 0; g->mt_comp3 = 0;
287 }
288 break;
289
290 case MTIOCTOP:
291 {
292 int i;
293 struct mtop *mt = (struct mtop *)ap->a_data;
294
295 switch ((int16_t) (mt->mt_op)) {
296
297 case MTWEOF:
298 for (i=0; i < mt->mt_count && !error; i++)
299 error = ast_write_filemark(dev, ATAPI_WF_WRITE);
300 break;
301
302 case MTFSF:
303 if (mt->mt_count)
304 error = ast_space(dev, ATAPI_SP_FM, mt->mt_count);
305 break;
306
307 case MTBSF:
308 if (mt->mt_count)
309 error = ast_space(dev, ATAPI_SP_FM, -(mt->mt_count));
310 break;
311
312 case MTREW:
313 error = ast_rewind(dev);
314 break;
315
316 case MTOFFL:
317 error = ast_load_unload(dev, ATAPI_SS_EJECT);
318 break;
319
320 case MTNOP:
321 error = ast_write_filemark(dev, 0);
322 break;
323
324 case MTERASE:
325 error = ast_erase(dev);
326 break;
327
328 case MTEOD:
329 error = ast_space(dev, ATAPI_SP_EOD, 0);
330 break;
331
332 case MTRETENS:
333 error = ast_load_unload(dev, ATAPI_SS_RETENSION|ATAPI_SS_LOAD);
334 break;
335
336 case MTFSR:
337 case MTBSR:
338 case MTCACHE:
339 case MTNOCACHE:
340 case MTSETBSIZ:
341 case MTSETDNSTY:
342 case MTCOMP:
343 default:
344 error = EINVAL;
345 }
346 }
347 break;
348
349 case MTIOCRDSPOS:
350 {
351 struct ast_readposition position;
352
353 if ((error = ast_read_position(dev, 0, &position)))
354 break;
355 *(u_int32_t *)ap->a_data = position.tape;
356 }
357 break;
358
359 case MTIOCRDHPOS:
360 {
361 struct ast_readposition position;
362
363 if ((error = ast_read_position(dev, 1, &position)))
364 break;
365 *(u_int32_t *)ap->a_data = position.tape;
366 }
367 break;
368
369 case MTIOCSLOCATE:
370 error = ast_locate(dev, 0, *(u_int32_t *)ap->a_data);
371 break;
372
373 case MTIOCHLOCATE:
374 error = ast_locate(dev, 1, *(u_int32_t *)ap->a_data);
375 break;
376
377 default:
378 error = ata_device_ioctl(dev, ap->a_cmd, ap->a_data);
379 }
380 return error;
381}
382
383static int
384ast_strategy(struct dev_strategy_args *ap)
385{
386 device_t dev = ap->a_head.a_dev->si_drv1;
387 struct bio *bp = ap->a_bio;
388 struct buf *bbp = bp->bio_buf;
389 struct ata_device *atadev = device_get_softc(dev);
390 struct ast_softc *stp = device_get_ivars(dev);
391 struct ata_request *request;
392 u_int32_t blkcount;
393 int8_t ccb[16];
394
395 /* if it's a null transfer, return immediatly. */
396 if (bbp->b_bcount == 0) {
397 bbp->b_resid = 0;
398 biodone(bp);
399 return 0;
400 }
b106cb48 401 if (!(bbp->b_cmd == BUF_CMD_READ) && (stp->flags & F_WRITEPROTECT)) {
c1b3d7c5
TS		 402 bbp->b_flags |= B_ERROR;
403 bbp->b_error = EPERM;
404 biodone(bp);
405 return 0;
406 }
b106cb48
MD		 407 if (bbp->b_cmd != BUF_CMD_READ && bbp->b_cmd != BUF_CMD_WRITE) {
408 bbp->b_flags |= B_ERROR;
409 bbp->b_error = EIO;
410 biodone(bp);
411 return 0;
412 }
c1b3d7c5
TS		 413
414 /* check for != blocksize requests */
415 if (bbp->b_bcount % stp->blksize) {
416 device_printf(dev, "transfers must be multiple of %d\n", stp->blksize);
417 bbp->b_flags |= B_ERROR;
418 bbp->b_error = EIO;
419 biodone(bp);
420 return 0;
421 }
422
423 /* warn about transfers bigger than the device suggests */
424 if (bbp->b_bcount > stp->blksize * stp->cap.ctl) {
425 if ((stp->flags & F_CTL_WARN) == 0) {
426 device_printf(dev, "WARNING: CTL exceeded %d>%d\n",
427 bbp->b_bcount, stp->blksize * stp->cap.ctl);
428 stp->flags |= F_CTL_WARN;
429 }
430 }
431
432 bzero(ccb, sizeof(ccb));
433
434 if (bbp->b_cmd == BUF_CMD_READ)
435 ccb[0] = ATAPI_READ;
436 else
437 ccb[0] = ATAPI_WRITE;
438
439 blkcount = bbp->b_bcount / stp->blksize;
440
441 ccb[1] = 1;
442 ccb[2] = blkcount >> 16;
443 ccb[3] = blkcount >> 8;
444 ccb[4] = blkcount;
445
446 if (!(request = ata_alloc_request())) {
447 bbp->b_flags |= B_ERROR;
448 bbp->b_error = ENOMEM;
449 biodone(bp);
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;
b106cb48 463
c1b3d7c5
TS		 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:
b106cb48 472 panic("bbp->b_cmd");
c1b3d7c5
TS		 473 }
474 devstat_start_transaction(&stp->stats);
475 ata_queue_request(request);
476 return 0;
477}
478
479static void
480ast_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
498static int
499ast_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
528static int
529ast_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
539static int
540ast_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
548static int
549ast_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
572static int
573ast_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
586static int
587ast_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
595static int
596ast_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
609static int
610ast_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
618static int
619ast_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
637static int
638ast_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
650static int
651ast_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
663static int
664ast_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
672static int
673ast_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
690static void
691ast_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),
701 (atadev->unit == ATA_MASTER) ? "master" : "slave");
702 device_printf(dev, "%dKB/s, ", stp->cap.max_speed);
e3869ec7 703 kprintf("transfer limit %d blk%s, ",
c1b3d7c5 704 stp->cap.ctl, (stp->cap.ctl > 1) ? "s" : "");
e3869ec7
SW		 705 kprintf("%dKB buffer, ", (stp->cap.buffer_size * DEV_BSIZE) / 1024);
706 kprintf("%s\n", ata_mode2str(atadev->mode));
c1b3d7c5
TS		 707 device_printf(dev, "Medium: ");
708 switch (stp->cap.medium_type) {
709 case 0x00:
e3869ec7 710 kprintf("none"); break;
c1b3d7c5 711 case 0x17:
e3869ec7 712 kprintf("Travan 1 (400 Mbyte)"); break;
c1b3d7c5 713 case 0xb6:
e3869ec7 714 kprintf("Travan 4 (4 Gbyte)"); break;
c1b3d7c5 715 case 0xda:
e3869ec7 716 kprintf("OnStream ADR (15Gyte)"); break;
c1b3d7c5 717 default:
e3869ec7 718 kprintf("unknown (0x%x)", stp->cap.medium_type);
c1b3d7c5 719 }
e3869ec7
SW		 720 if (stp->cap.readonly) kprintf(", readonly");
721 if (stp->cap.reverse) kprintf(", reverse");
722 if (stp->cap.eformat) kprintf(", eformat");
723 if (stp->cap.qfa) kprintf(", qfa");
724 if (stp->cap.lock) kprintf(", lock");
725 if (stp->cap.locked) kprintf(", locked");
726 if (stp->cap.prevent) kprintf(", prevent");
727 if (stp->cap.eject) kprintf(", eject");
728 if (stp->cap.disconnect) kprintf(", disconnect");
729 if (stp->cap.ecc) kprintf(", ecc");
730 if (stp->cap.compress) kprintf(", compress");
731 if (stp->cap.blk512) kprintf(", 512b");
732 if (stp->cap.blk1024) kprintf(", 1024b");
733 if (stp->cap.blk32k) kprintf(", 32kb");
734 kprintf("\n");
c1b3d7c5
TS		 735 }
736 else {
737 device_printf(dev, "TAPE <%.40s/%.8s> at ata%d-%s %s\n",
738 atadev->param.model, atadev->param.revision,
739 device_get_unit(ch->dev),
740 (atadev->unit == ATA_MASTER) ? "master" : "slave",
741 ata_mode2str(atadev->mode));
742 }
743}
744
745static device_method_t ast_methods[] = {
746 /* device interface */
747 DEVMETHOD(device_probe, ast_probe),
748 DEVMETHOD(device_attach, ast_attach),
749 DEVMETHOD(device_detach, ast_detach),
750 DEVMETHOD(device_shutdown, ast_shutdown),
751
752 /* ATA methods */
753 DEVMETHOD(ata_reinit, ast_reinit),
754
755 { 0, 0 }
756};
757
758static driver_t ast_driver = {
759 "ast",
760 ast_methods,
761 0,
762};
763
764static devclass_t ast_devclass;
765
766DRIVER_MODULE(ast, ata, ast_driver, ast_devclass, NULL, NULL);
767MODULE_VERSION(ast, 1);
768MODULE_DEPEND(ast, ata, 1, 1, 1);
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