1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 1997 Justin T. Gibbs.
5 * Copyright (c) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Kenneth D. Merry.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions, and the following disclaimer,
13 * without modification, immediately at the beginning of the file.
14 * 2. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 /*-
31 * Portions of this driver taken from the original FreeBSD cd driver.
32 * Written by Julian Elischer ([email protected])
33 * for TRW Financial Systems for use under the MACH(2.5) operating system.
34 *
35 * TRW Financial Systems, in accordance with their agreement with Carnegie
36 * Mellon University, makes this software available to CMU to distribute
37 * or use in any manner that they see fit as long as this message is kept with
38 * the software. For this reason TFS also grants any other persons or
39 * organisations permission to use or modify this software.
40 *
41 * TFS supplies this software to be publicly redistributed
42 * on the understanding that TFS is not responsible for the correct
43 * functioning of this software in any circumstances.
44 *
45 * Ported to run under 386BSD by Julian Elischer ([email protected]) Sept 1992
46 *
47 * from: cd.c,v 1.83 1997/05/04 15:24:22 joerg Exp $
48 */
49
50 #include <sys/cdefs.h>
51 __FBSDID("$FreeBSD$");
52
53 #include "opt_cd.h"
54
55 #include <sys/param.h>
56 #include <sys/systm.h>
57 #include <sys/kernel.h>
58 #include <sys/bio.h>
59 #include <sys/conf.h>
60 #include <sys/disk.h>
61 #include <sys/malloc.h>
62 #include <sys/cdio.h>
63 #include <sys/cdrio.h>
64 #include <sys/dvdio.h>
65 #include <sys/devicestat.h>
66 #include <sys/proc.h>
67 #include <sys/sbuf.h>
68 #include <sys/sysctl.h>
69 #include <sys/sysent.h>
70 #include <sys/taskqueue.h>
71 #include <geom/geom_disk.h>
72
73 #include <cam/cam.h>
74 #include <cam/cam_ccb.h>
75 #include <cam/cam_periph.h>
76 #include <cam/cam_xpt_periph.h>
77 #include <cam/cam_queue.h>
78 #include <cam/cam_sim.h>
79
80 #include <cam/scsi/scsi_message.h>
81 #include <cam/scsi/scsi_da.h>
82 #include <cam/scsi/scsi_cd.h>
83
84 #define LEADOUT 0xaa /* leadout toc entry */
85
86 struct cd_params {
87 u_int32_t blksize;
88 u_long disksize;
89 };
90
91 typedef enum {
92 CD_Q_NONE = 0x00,
93 CD_Q_NO_TOUCH = 0x01,
94 CD_Q_BCD_TRACKS = 0x02,
95 CD_Q_10_BYTE_ONLY = 0x10,
96 CD_Q_RETRY_BUSY = 0x40
97 } cd_quirks;
98
99 #define CD_Q_BIT_STRING \
100 "\020" \
101 "\001NO_TOUCH" \
102 "\002BCD_TRACKS" \
103 "\00510_BYTE_ONLY" \
104 "\007RETRY_BUSY"
105
106 typedef enum {
107 CD_FLAG_INVALID = 0x0001,
108 CD_FLAG_NEW_DISC = 0x0002,
109 CD_FLAG_DISC_LOCKED = 0x0004,
110 CD_FLAG_DISC_REMOVABLE = 0x0008,
111 CD_FLAG_SAW_MEDIA = 0x0010,
112 CD_FLAG_ACTIVE = 0x0080,
113 CD_FLAG_SCHED_ON_COMP = 0x0100,
114 CD_FLAG_RETRY_UA = 0x0200,
115 CD_FLAG_VALID_MEDIA = 0x0400,
116 CD_FLAG_VALID_TOC = 0x0800,
117 CD_FLAG_SCTX_INIT = 0x1000
118 } cd_flags;
119
120 typedef enum {
121 CD_CCB_PROBE = 0x01,
122 CD_CCB_BUFFER_IO = 0x02,
123 CD_CCB_TUR = 0x04,
124 CD_CCB_TYPE_MASK = 0x0F,
125 CD_CCB_RETRY_UA = 0x10
126 } cd_ccb_state;
127
128 #define ccb_state ppriv_field0
129 #define ccb_bp ppriv_ptr1
130
131 struct cd_tocdata {
132 struct ioc_toc_header header;
133 struct cd_toc_entry entries[100];
134 };
135
136 struct cd_toc_single {
137 struct ioc_toc_header header;
138 struct cd_toc_entry entry;
139 };
140
141 typedef enum {
142 CD_STATE_PROBE,
143 CD_STATE_NORMAL
144 } cd_state;
145
146 struct cd_softc {
147 cam_pinfo pinfo;
148 cd_state state;
149 volatile cd_flags flags;
150 struct bio_queue_head bio_queue;
151 LIST_HEAD(, ccb_hdr) pending_ccbs;
152 struct cd_params params;
153 union ccb saved_ccb;
154 cd_quirks quirks;
155 struct cam_periph *periph;
156 int minimum_command_size;
157 int outstanding_cmds;
158 int tur;
159 struct task sysctl_task;
160 struct sysctl_ctx_list sysctl_ctx;
161 struct sysctl_oid *sysctl_tree;
162 STAILQ_HEAD(, cd_mode_params) mode_queue;
163 struct cd_tocdata toc;
164 struct disk *disk;
165 struct callout mediapoll_c;
166
167 #define CD_ANNOUNCETMP_SZ 120
168 char announce_temp[CD_ANNOUNCETMP_SZ];
169 #define CD_ANNOUNCE_SZ 400
170 char announce_buf[CD_ANNOUNCE_SZ];
171 };
172
173 struct cd_page_sizes {
174 int page;
175 int page_size;
176 };
177
178 static struct cd_page_sizes cd_page_size_table[] =
179 {
180 { AUDIO_PAGE, sizeof(struct cd_audio_page)}
181 };
182
183 struct cd_quirk_entry {
184 struct scsi_inquiry_pattern inq_pat;
185 cd_quirks quirks;
186 };
187
188 /*
189 * NOTE ON 10_BYTE_ONLY quirks: Any 10_BYTE_ONLY quirks MUST be because
190 * your device hangs when it gets a 10 byte command. Adding a quirk just
191 * to get rid of the informative diagnostic message is not acceptable. All
192 * 10_BYTE_ONLY quirks must be documented in full in a PR (which should be
193 * referenced in a comment along with the quirk) , and must be approved by
194 * [email protected]. Any quirks added that don't adhere to this policy may
195 * be removed until the submitter can explain why they are needed.
196 * 10_BYTE_ONLY quirks will be removed (as they will no longer be necessary)
197 * when the CAM_NEW_TRAN_CODE work is done.
198 */
199 static struct cd_quirk_entry cd_quirk_table[] =
200 {
201 {
202 { T_CDROM, SIP_MEDIA_REMOVABLE, "CHINON", "CD-ROM CDS-535","*"},
203 /* quirks */ CD_Q_BCD_TRACKS
204 },
205 {
206 /*
207 * VMware returns BUSY status when storage has transient
208 * connectivity problems, so better wait.
209 */
210 {T_CDROM, SIP_MEDIA_REMOVABLE, "NECVMWar", "VMware IDE CDR10", "*"},
211 /*quirks*/ CD_Q_RETRY_BUSY
212 }
213 };
214
215 #ifdef COMPAT_FREEBSD32
216 struct ioc_read_toc_entry32 {
217 u_char address_format;
218 u_char starting_track;
219 u_short data_len;
220 uint32_t data; /* (struct cd_toc_entry *) */
221 };
222 #define CDIOREADTOCENTRYS_32 \
223 _IOC_NEWTYPE(CDIOREADTOCENTRYS, struct ioc_read_toc_entry32)
224 #endif
225
226 static disk_open_t cdopen;
227 static disk_close_t cdclose;
228 static disk_ioctl_t cdioctl;
229 static disk_strategy_t cdstrategy;
230
231 static periph_init_t cdinit;
232 static periph_ctor_t cdregister;
233 static periph_dtor_t cdcleanup;
234 static periph_start_t cdstart;
235 static periph_oninv_t cdoninvalidate;
236 static void cdasync(void *callback_arg, u_int32_t code,
237 struct cam_path *path, void *arg);
238 static int cdcmdsizesysctl(SYSCTL_HANDLER_ARGS);
239 static int cdrunccb(union ccb *ccb,
240 int (*error_routine)(union ccb *ccb,
241 u_int32_t cam_flags,
242 u_int32_t sense_flags),
243 u_int32_t cam_flags, u_int32_t sense_flags);
244 static void cddone(struct cam_periph *periph,
245 union ccb *start_ccb);
246 static union cd_pages *cdgetpage(struct cd_mode_params *mode_params);
247 static int cdgetpagesize(int page_num);
248 static void cdprevent(struct cam_periph *periph, int action);
249 static int cdcheckmedia(struct cam_periph *periph);
250 static int cdsize(struct cam_periph *periph, u_int32_t *size);
251 static int cd6byteworkaround(union ccb *ccb);
252 static int cderror(union ccb *ccb, u_int32_t cam_flags,
253 u_int32_t sense_flags);
254 static int cdreadtoc(struct cam_periph *periph, u_int32_t mode,
255 u_int32_t start, u_int8_t *data,
256 u_int32_t len, u_int32_t sense_flags);
257 static int cdgetmode(struct cam_periph *periph,
258 struct cd_mode_params *data, u_int32_t page);
259 static int cdsetmode(struct cam_periph *periph,
260 struct cd_mode_params *data);
261 static int cdplay(struct cam_periph *periph, u_int32_t blk,
262 u_int32_t len);
263 static int cdreadsubchannel(struct cam_periph *periph,
264 u_int32_t mode, u_int32_t format,
265 int track,
266 struct cd_sub_channel_info *data,
267 u_int32_t len);
268 static int cdplaymsf(struct cam_periph *periph, u_int32_t startm,
269 u_int32_t starts, u_int32_t startf,
270 u_int32_t endm, u_int32_t ends,
271 u_int32_t endf);
272 static int cdplaytracks(struct cam_periph *periph,
273 u_int32_t strack, u_int32_t sindex,
274 u_int32_t etrack, u_int32_t eindex);
275 static int cdpause(struct cam_periph *periph, u_int32_t go);
276 static int cdstopunit(struct cam_periph *periph, u_int32_t eject);
277 static int cdstartunit(struct cam_periph *periph, int load);
278 static int cdsetspeed(struct cam_periph *periph,
279 u_int32_t rdspeed, u_int32_t wrspeed);
280 static int cdreportkey(struct cam_periph *periph,
281 struct dvd_authinfo *authinfo);
282 static int cdsendkey(struct cam_periph *periph,
283 struct dvd_authinfo *authinfo);
284 static int cdreaddvdstructure(struct cam_periph *periph,
285 struct dvd_struct *dvdstruct);
286 static timeout_t cdmediapoll;
287
288 static struct periph_driver cddriver =
289 {
290 cdinit, "cd",
291 TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0
292 };
293
294 PERIPHDRIVER_DECLARE(cd, cddriver);
295
296 #ifndef CD_DEFAULT_POLL_PERIOD
297 #define CD_DEFAULT_POLL_PERIOD 3
298 #endif
299 #ifndef CD_DEFAULT_RETRY
300 #define CD_DEFAULT_RETRY 4
301 #endif
302 #ifndef CD_DEFAULT_TIMEOUT
303 #define CD_DEFAULT_TIMEOUT 30000
304 #endif
305
306 static int cd_poll_period = CD_DEFAULT_POLL_PERIOD;
307 static int cd_retry_count = CD_DEFAULT_RETRY;
308 static int cd_timeout = CD_DEFAULT_TIMEOUT;
309
310 static SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver");
311 SYSCTL_INT(_kern_cam_cd, OID_AUTO, poll_period, CTLFLAG_RWTUN,
312 &cd_poll_period, 0, "Media polling period in seconds");
313 SYSCTL_INT(_kern_cam_cd, OID_AUTO, retry_count, CTLFLAG_RWTUN,
314 &cd_retry_count, 0, "Normal I/O retry count");
315 SYSCTL_INT(_kern_cam_cd, OID_AUTO, timeout, CTLFLAG_RWTUN,
316 &cd_timeout, 0, "Timeout, in us, for read operations");
317
318 static MALLOC_DEFINE(M_SCSICD, "scsi_cd", "scsi_cd buffers");
319
320 static void
cdinit(void)321 cdinit(void)
322 {
323 cam_status status;
324
325 /*
326 * Install a global async callback. This callback will
327 * receive async callbacks like "new device found".
328 */
329 status = xpt_register_async(AC_FOUND_DEVICE, cdasync, NULL, NULL);
330
331 if (status != CAM_REQ_CMP) {
332 printf("cd: Failed to attach master async callback "
333 "due to status 0x%x!\n", status);
334 }
335 }
336
337 /*
338 * Callback from GEOM, called when it has finished cleaning up its
339 * resources.
340 */
341 static void
cddiskgonecb(struct disk * dp)342 cddiskgonecb(struct disk *dp)
343 {
344 struct cam_periph *periph;
345
346 periph = (struct cam_periph *)dp->d_drv1;
347 cam_periph_release(periph);
348 }
349
350 static void
cdoninvalidate(struct cam_periph * periph)351 cdoninvalidate(struct cam_periph *periph)
352 {
353 struct cd_softc *softc;
354
355 softc = (struct cd_softc *)periph->softc;
356
357 /*
358 * De-register any async callbacks.
359 */
360 xpt_register_async(0, cdasync, periph, periph->path);
361
362 softc->flags |= CD_FLAG_INVALID;
363
364 /*
365 * Return all queued I/O with ENXIO.
366 * XXX Handle any transactions queued to the card
367 * with XPT_ABORT_CCB.
368 */
369 bioq_flush(&softc->bio_queue, NULL, ENXIO);
370
371 disk_gone(softc->disk);
372 }
373
374 static void
cdcleanup(struct cam_periph * periph)375 cdcleanup(struct cam_periph *periph)
376 {
377 struct cd_softc *softc;
378
379 softc = (struct cd_softc *)periph->softc;
380
381 cam_periph_unlock(periph);
382 if ((softc->flags & CD_FLAG_SCTX_INIT) != 0
383 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
384 xpt_print(periph->path, "can't remove sysctl context\n");
385 }
386
387 callout_drain(&softc->mediapoll_c);
388 disk_destroy(softc->disk);
389 free(softc, M_DEVBUF);
390 cam_periph_lock(periph);
391 }
392
393 static void
cdasync(void * callback_arg,u_int32_t code,struct cam_path * path,void * arg)394 cdasync(void *callback_arg, u_int32_t code,
395 struct cam_path *path, void *arg)
396 {
397 struct cam_periph *periph;
398 struct cd_softc *softc;
399
400 periph = (struct cam_periph *)callback_arg;
401 switch (code) {
402 case AC_FOUND_DEVICE:
403 {
404 struct ccb_getdev *cgd;
405 cam_status status;
406
407 cgd = (struct ccb_getdev *)arg;
408 if (cgd == NULL)
409 break;
410
411 if (cgd->protocol != PROTO_SCSI)
412 break;
413 if (SID_QUAL(&cgd->inq_data) != SID_QUAL_LU_CONNECTED)
414 break;
415 if (SID_TYPE(&cgd->inq_data) != T_CDROM
416 && SID_TYPE(&cgd->inq_data) != T_WORM)
417 break;
418
419 /*
420 * Allocate a peripheral instance for
421 * this device and start the probe
422 * process.
423 */
424 status = cam_periph_alloc(cdregister, cdoninvalidate,
425 cdcleanup, cdstart,
426 "cd", CAM_PERIPH_BIO,
427 path, cdasync,
428 AC_FOUND_DEVICE, cgd);
429
430 if (status != CAM_REQ_CMP
431 && status != CAM_REQ_INPROG)
432 printf("cdasync: Unable to attach new device "
433 "due to status 0x%x\n", status);
434
435 break;
436 }
437 case AC_UNIT_ATTENTION:
438 {
439 union ccb *ccb;
440 int error_code, sense_key, asc, ascq;
441
442 softc = (struct cd_softc *)periph->softc;
443 ccb = (union ccb *)arg;
444
445 /*
446 * Handle all media change UNIT ATTENTIONs except
447 * our own, as they will be handled by cderror().
448 */
449 if (xpt_path_periph(ccb->ccb_h.path) != periph &&
450 scsi_extract_sense_ccb(ccb,
451 &error_code, &sense_key, &asc, &ascq)) {
452 if (asc == 0x28 && ascq == 0x00)
453 disk_media_changed(softc->disk, M_NOWAIT);
454 }
455 cam_periph_async(periph, code, path, arg);
456 break;
457 }
458 case AC_SCSI_AEN:
459 softc = (struct cd_softc *)periph->softc;
460 if (softc->state == CD_STATE_NORMAL && !softc->tur) {
461 if (cam_periph_acquire(periph) == 0) {
462 softc->tur = 1;
463 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
464 }
465 }
466 /* FALLTHROUGH */
467 case AC_SENT_BDR:
468 case AC_BUS_RESET:
469 {
470 struct ccb_hdr *ccbh;
471
472 softc = (struct cd_softc *)periph->softc;
473 /*
474 * Don't fail on the expected unit attention
475 * that will occur.
476 */
477 softc->flags |= CD_FLAG_RETRY_UA;
478 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
479 ccbh->ccb_state |= CD_CCB_RETRY_UA;
480 /* FALLTHROUGH */
481 }
482 default:
483 cam_periph_async(periph, code, path, arg);
484 break;
485 }
486 }
487
488 static void
cdsysctlinit(void * context,int pending)489 cdsysctlinit(void *context, int pending)
490 {
491 struct cam_periph *periph;
492 struct cd_softc *softc;
493 char tmpstr[32], tmpstr2[16];
494
495 periph = (struct cam_periph *)context;
496 if (cam_periph_acquire(periph) != 0)
497 return;
498
499 softc = (struct cd_softc *)periph->softc;
500 snprintf(tmpstr, sizeof(tmpstr), "CAM CD unit %d", periph->unit_number);
501 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
502
503 sysctl_ctx_init(&softc->sysctl_ctx);
504 softc->flags |= CD_FLAG_SCTX_INIT;
505 softc->sysctl_tree = SYSCTL_ADD_NODE_WITH_LABEL(&softc->sysctl_ctx,
506 SYSCTL_STATIC_CHILDREN(_kern_cam_cd), OID_AUTO,
507 tmpstr2, CTLFLAG_RD, 0, tmpstr, "device_index");
508
509 if (softc->sysctl_tree == NULL) {
510 printf("cdsysctlinit: unable to allocate sysctl tree\n");
511 cam_periph_release(periph);
512 return;
513 }
514
515 /*
516 * Now register the sysctl handler, so the user can the value on
517 * the fly.
518 */
519 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree),
520 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
521 &softc->minimum_command_size, 0, cdcmdsizesysctl, "I",
522 "Minimum CDB size");
523
524 cam_periph_release(periph);
525 }
526
527 /*
528 * We have a handler function for this so we can check the values when the
529 * user sets them, instead of every time we look at them.
530 */
531 static int
cdcmdsizesysctl(SYSCTL_HANDLER_ARGS)532 cdcmdsizesysctl(SYSCTL_HANDLER_ARGS)
533 {
534 int error, value;
535
536 value = *(int *)arg1;
537
538 error = sysctl_handle_int(oidp, &value, 0, req);
539
540 if ((error != 0)
541 || (req->newptr == NULL))
542 return (error);
543
544 /*
545 * The only real values we can have here are 6 or 10. I don't
546 * really forsee having 12 be an option at any time in the future.
547 * So if the user sets something less than or equal to 6, we'll set
548 * it to 6. If he sets something greater than 6, we'll set it to 10.
549 *
550 * I suppose we could just return an error here for the wrong values,
551 * but I don't think it's necessary to do so, as long as we can
552 * determine the user's intent without too much trouble.
553 */
554 if (value < 6)
555 value = 6;
556 else if (value > 6)
557 value = 10;
558
559 *(int *)arg1 = value;
560
561 return (0);
562 }
563
564 static cam_status
cdregister(struct cam_periph * periph,void * arg)565 cdregister(struct cam_periph *periph, void *arg)
566 {
567 struct cd_softc *softc;
568 struct ccb_pathinq cpi;
569 struct ccb_getdev *cgd;
570 char tmpstr[80];
571 caddr_t match;
572
573 cgd = (struct ccb_getdev *)arg;
574 if (cgd == NULL) {
575 printf("cdregister: no getdev CCB, can't register device\n");
576 return(CAM_REQ_CMP_ERR);
577 }
578
579 softc = (struct cd_softc *)malloc(sizeof(*softc),M_DEVBUF,
580 M_NOWAIT | M_ZERO);
581 if (softc == NULL) {
582 printf("cdregister: Unable to probe new device. "
583 "Unable to allocate softc\n");
584 return(CAM_REQ_CMP_ERR);
585 }
586
587 LIST_INIT(&softc->pending_ccbs);
588 STAILQ_INIT(&softc->mode_queue);
589 softc->state = CD_STATE_PROBE;
590 bioq_init(&softc->bio_queue);
591 if (SID_IS_REMOVABLE(&cgd->inq_data))
592 softc->flags |= CD_FLAG_DISC_REMOVABLE;
593
594 periph->softc = softc;
595 softc->periph = periph;
596
597 /*
598 * See if this device has any quirks.
599 */
600 match = cam_quirkmatch((caddr_t)&cgd->inq_data,
601 (caddr_t)cd_quirk_table,
602 nitems(cd_quirk_table),
603 sizeof(*cd_quirk_table), scsi_inquiry_match);
604
605 if (match != NULL)
606 softc->quirks = ((struct cd_quirk_entry *)match)->quirks;
607 else
608 softc->quirks = CD_Q_NONE;
609
610 /* Check if the SIM does not want 6 byte commands */
611 xpt_path_inq(&cpi, periph->path);
612 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
613 softc->quirks |= CD_Q_10_BYTE_ONLY;
614
615 TASK_INIT(&softc->sysctl_task, 0, cdsysctlinit, periph);
616
617 /* The default is 6 byte commands, unless quirked otherwise */
618 if (softc->quirks & CD_Q_10_BYTE_ONLY)
619 softc->minimum_command_size = 10;
620 else
621 softc->minimum_command_size = 6;
622
623 /*
624 * Refcount and block open attempts until we are setup
625 * Can't block
626 */
627 (void)cam_periph_hold(periph, PRIBIO);
628 cam_periph_unlock(periph);
629 /*
630 * Load the user's default, if any.
631 */
632 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.cd.%d.minimum_cmd_size",
633 periph->unit_number);
634 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_command_size);
635
636 /* 6 and 10 are the only permissible values here. */
637 if (softc->minimum_command_size < 6)
638 softc->minimum_command_size = 6;
639 else if (softc->minimum_command_size > 6)
640 softc->minimum_command_size = 10;
641
642 /*
643 * We need to register the statistics structure for this device,
644 * but we don't have the blocksize yet for it. So, we register
645 * the structure and indicate that we don't have the blocksize
646 * yet. Unlike other SCSI peripheral drivers, we explicitly set
647 * the device type here to be CDROM, rather than just ORing in
648 * the device type. This is because this driver can attach to either
649 * CDROM or WORM devices, and we want this peripheral driver to
650 * show up in the devstat list as a CD peripheral driver, not a
651 * WORM peripheral driver. WORM drives will also have the WORM
652 * driver attached to them.
653 */
654 softc->disk = disk_alloc();
655 softc->disk->d_devstat = devstat_new_entry("cd",
656 periph->unit_number, 0,
657 DEVSTAT_BS_UNAVAILABLE,
658 DEVSTAT_TYPE_CDROM |
659 XPORT_DEVSTAT_TYPE(cpi.transport),
660 DEVSTAT_PRIORITY_CD);
661 softc->disk->d_open = cdopen;
662 softc->disk->d_close = cdclose;
663 softc->disk->d_strategy = cdstrategy;
664 softc->disk->d_gone = cddiskgonecb;
665 softc->disk->d_ioctl = cdioctl;
666 softc->disk->d_name = "cd";
667 cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
668 sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
669 strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
670 cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
671 cgd->inq_data.product, sizeof(cgd->inq_data.product),
672 sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
673 softc->disk->d_unit = periph->unit_number;
674 softc->disk->d_drv1 = periph;
675 if (cpi.maxio == 0)
676 softc->disk->d_maxsize = DFLTPHYS; /* traditional default */
677 else if (cpi.maxio > MAXPHYS)
678 softc->disk->d_maxsize = MAXPHYS; /* for safety */
679 else
680 softc->disk->d_maxsize = cpi.maxio;
681 softc->disk->d_flags = 0;
682 softc->disk->d_hba_vendor = cpi.hba_vendor;
683 softc->disk->d_hba_device = cpi.hba_device;
684 softc->disk->d_hba_subvendor = cpi.hba_subvendor;
685 softc->disk->d_hba_subdevice = cpi.hba_subdevice;
686
687 /*
688 * Acquire a reference to the periph before we register with GEOM.
689 * We'll release this reference once GEOM calls us back (via
690 * dadiskgonecb()) telling us that our provider has been freed.
691 */
692 if (cam_periph_acquire(periph) != 0) {
693 xpt_print(periph->path, "%s: lost periph during "
694 "registration!\n", __func__);
695 cam_periph_lock(periph);
696 return (CAM_REQ_CMP_ERR);
697 }
698
699 disk_create(softc->disk, DISK_VERSION);
700 cam_periph_lock(periph);
701
702 /*
703 * Add an async callback so that we get
704 * notified if this device goes away.
705 */
706 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE |
707 AC_SCSI_AEN | AC_UNIT_ATTENTION, cdasync, periph, periph->path);
708
709 /*
710 * Schedule a periodic media polling events.
711 */
712 callout_init_mtx(&softc->mediapoll_c, cam_periph_mtx(periph), 0);
713 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) &&
714 (cgd->inq_flags & SID_AEN) == 0 &&
715 cd_poll_period != 0)
716 callout_reset(&softc->mediapoll_c, cd_poll_period * hz,
717 cdmediapoll, periph);
718
719 xpt_schedule(periph, CAM_PRIORITY_DEV);
720 return(CAM_REQ_CMP);
721 }
722
723 static int
cdopen(struct disk * dp)724 cdopen(struct disk *dp)
725 {
726 struct cam_periph *periph;
727 struct cd_softc *softc;
728 int error;
729
730 periph = (struct cam_periph *)dp->d_drv1;
731 softc = (struct cd_softc *)periph->softc;
732
733 if (cam_periph_acquire(periph) != 0)
734 return(ENXIO);
735
736 cam_periph_lock(periph);
737
738 if (softc->flags & CD_FLAG_INVALID) {
739 cam_periph_release_locked(periph);
740 cam_periph_unlock(periph);
741 return(ENXIO);
742 }
743
744 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) {
745 cam_periph_release_locked(periph);
746 cam_periph_unlock(periph);
747 return (error);
748 }
749
750 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
751 ("cdopen\n"));
752
753 /*
754 * Check for media, and set the appropriate flags. We don't bail
755 * if we don't have media, but then we don't allow anything but the
756 * CDIOCEJECT/CDIOCCLOSE ioctls if there is no media.
757 */
758 cdcheckmedia(periph);
759
760 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n"));
761 cam_periph_unhold(periph);
762
763 cam_periph_unlock(periph);
764
765 return (0);
766 }
767
768 static int
cdclose(struct disk * dp)769 cdclose(struct disk *dp)
770 {
771 struct cam_periph *periph;
772 struct cd_softc *softc;
773
774 periph = (struct cam_periph *)dp->d_drv1;
775 softc = (struct cd_softc *)periph->softc;
776
777 cam_periph_lock(periph);
778 if (cam_periph_hold(periph, PRIBIO) != 0) {
779 cam_periph_unlock(periph);
780 cam_periph_release(periph);
781 return (0);
782 }
783
784 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
785 ("cdclose\n"));
786
787 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0)
788 cdprevent(periph, PR_ALLOW);
789
790 /*
791 * Since we're closing this CD, mark the blocksize as unavailable.
792 * It will be marked as available when the CD is opened again.
793 */
794 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
795
796 /*
797 * We'll check the media and toc again at the next open().
798 */
799 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC);
800
801 cam_periph_unhold(periph);
802 cam_periph_release_locked(periph);
803 cam_periph_unlock(periph);
804
805 return (0);
806 }
807
808 static int
cdrunccb(union ccb * ccb,int (* error_routine)(union ccb * ccb,u_int32_t cam_flags,u_int32_t sense_flags),u_int32_t cam_flags,u_int32_t sense_flags)809 cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb,
810 u_int32_t cam_flags,
811 u_int32_t sense_flags),
812 u_int32_t cam_flags, u_int32_t sense_flags)
813 {
814 struct cd_softc *softc;
815 struct cam_periph *periph;
816 int error;
817
818 periph = xpt_path_periph(ccb->ccb_h.path);
819 softc = (struct cd_softc *)periph->softc;
820
821 error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags,
822 softc->disk->d_devstat);
823
824 return(error);
825 }
826
827 /*
828 * Actually translate the requested transfer into one the physical driver
829 * can understand. The transfer is described by a buf and will include
830 * only one physical transfer.
831 */
832 static void
cdstrategy(struct bio * bp)833 cdstrategy(struct bio *bp)
834 {
835 struct cam_periph *periph;
836 struct cd_softc *softc;
837
838 periph = (struct cam_periph *)bp->bio_disk->d_drv1;
839 cam_periph_lock(periph);
840 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
841 ("cdstrategy(%p)\n", bp));
842
843 softc = (struct cd_softc *)periph->softc;
844
845 /*
846 * If the device has been made invalid, error out
847 */
848 if ((softc->flags & CD_FLAG_INVALID)) {
849 cam_periph_unlock(periph);
850 biofinish(bp, NULL, ENXIO);
851 return;
852 }
853
854 /*
855 * If we don't have valid media, look for it before trying to
856 * schedule the I/O.
857 */
858 if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0) {
859 int error;
860
861 error = cdcheckmedia(periph);
862 if (error != 0) {
863 cam_periph_unlock(periph);
864 biofinish(bp, NULL, error);
865 return;
866 }
867 }
868
869 /*
870 * Place it in the queue of disk activities for this disk
871 */
872 bioq_disksort(&softc->bio_queue, bp);
873
874 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
875
876 cam_periph_unlock(periph);
877 return;
878 }
879
880 static void
cdstart(struct cam_periph * periph,union ccb * start_ccb)881 cdstart(struct cam_periph *periph, union ccb *start_ccb)
882 {
883 struct cd_softc *softc;
884 struct bio *bp;
885 struct ccb_scsiio *csio;
886 struct scsi_read_capacity_data *rcap;
887
888 softc = (struct cd_softc *)periph->softc;
889
890 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n"));
891
892 switch (softc->state) {
893 case CD_STATE_NORMAL:
894 {
895 bp = bioq_first(&softc->bio_queue);
896 if (bp == NULL) {
897 if (softc->tur) {
898 softc->tur = 0;
899 csio = &start_ccb->csio;
900 scsi_test_unit_ready(csio,
901 /*retries*/ cd_retry_count,
902 cddone,
903 MSG_SIMPLE_Q_TAG,
904 SSD_FULL_SIZE,
905 cd_timeout);
906 start_ccb->ccb_h.ccb_bp = NULL;
907 start_ccb->ccb_h.ccb_state = CD_CCB_TUR;
908 xpt_action(start_ccb);
909 } else
910 xpt_release_ccb(start_ccb);
911 } else {
912 if (softc->tur) {
913 softc->tur = 0;
914 cam_periph_release_locked(periph);
915 }
916 bioq_remove(&softc->bio_queue, bp);
917
918 scsi_read_write(&start_ccb->csio,
919 /*retries*/ cd_retry_count,
920 /* cbfcnp */ cddone,
921 MSG_SIMPLE_Q_TAG,
922 /* read */bp->bio_cmd == BIO_READ ?
923 SCSI_RW_READ : SCSI_RW_WRITE,
924 /* byte2 */ 0,
925 /* minimum_cmd_size */ 10,
926 /* lba */ bp->bio_offset /
927 softc->params.blksize,
928 bp->bio_bcount / softc->params.blksize,
929 /* data_ptr */ bp->bio_data,
930 /* dxfer_len */ bp->bio_bcount,
931 /* sense_len */ cd_retry_count ?
932 SSD_FULL_SIZE : SF_NO_PRINT,
933 /* timeout */ cd_timeout);
934 /* Use READ CD command for audio tracks. */
935 if (softc->params.blksize == 2352) {
936 start_ccb->csio.cdb_io.cdb_bytes[0] = READ_CD;
937 start_ccb->csio.cdb_io.cdb_bytes[9] = 0xf8;
938 start_ccb->csio.cdb_io.cdb_bytes[10] = 0;
939 start_ccb->csio.cdb_io.cdb_bytes[11] = 0;
940 start_ccb->csio.cdb_len = 12;
941 }
942 start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO;
943
944
945 LIST_INSERT_HEAD(&softc->pending_ccbs,
946 &start_ccb->ccb_h, periph_links.le);
947 softc->outstanding_cmds++;
948
949 /* We expect a unit attention from this device */
950 if ((softc->flags & CD_FLAG_RETRY_UA) != 0) {
951 start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA;
952 softc->flags &= ~CD_FLAG_RETRY_UA;
953 }
954
955 start_ccb->ccb_h.ccb_bp = bp;
956 bp = bioq_first(&softc->bio_queue);
957
958 xpt_action(start_ccb);
959 }
960 if (bp != NULL || softc->tur) {
961 /* Have more work to do, so ensure we stay scheduled */
962 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
963 }
964 break;
965 }
966 case CD_STATE_PROBE:
967 {
968
969 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap),
970 M_SCSICD, M_NOWAIT | M_ZERO);
971 if (rcap == NULL) {
972 xpt_print(periph->path,
973 "cdstart: Couldn't malloc read_capacity data\n");
974 /* cd_free_periph??? */
975 break;
976 }
977 csio = &start_ccb->csio;
978 scsi_read_capacity(csio,
979 /*retries*/ cd_retry_count,
980 cddone,
981 MSG_SIMPLE_Q_TAG,
982 rcap,
983 SSD_FULL_SIZE,
984 /*timeout*/20000);
985 start_ccb->ccb_h.ccb_bp = NULL;
986 start_ccb->ccb_h.ccb_state = CD_CCB_PROBE;
987 xpt_action(start_ccb);
988 break;
989 }
990 }
991 }
992
993 static void
cddone(struct cam_periph * periph,union ccb * done_ccb)994 cddone(struct cam_periph *periph, union ccb *done_ccb)
995 {
996 struct cd_softc *softc;
997 struct ccb_scsiio *csio;
998
999 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n"));
1000
1001 softc = (struct cd_softc *)periph->softc;
1002 csio = &done_ccb->csio;
1003
1004 switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) {
1005 case CD_CCB_BUFFER_IO:
1006 {
1007 struct bio *bp;
1008 int error;
1009
1010 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
1011 error = 0;
1012
1013 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1014 int sf;
1015
1016 if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0)
1017 sf = SF_RETRY_UA;
1018 else
1019 sf = 0;
1020
1021 error = cderror(done_ccb, CAM_RETRY_SELTO, sf);
1022 if (error == ERESTART) {
1023 /*
1024 * A retry was scheuled, so
1025 * just return.
1026 */
1027 return;
1028 }
1029 }
1030
1031 if (error != 0) {
1032 xpt_print(periph->path,
1033 "cddone: got error %#x back\n", error);
1034 bioq_flush(&softc->bio_queue, NULL, EIO);
1035 bp->bio_resid = bp->bio_bcount;
1036 bp->bio_error = error;
1037 bp->bio_flags |= BIO_ERROR;
1038 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1039 cam_release_devq(done_ccb->ccb_h.path,
1040 /*relsim_flags*/0,
1041 /*reduction*/0,
1042 /*timeout*/0,
1043 /*getcount_only*/0);
1044
1045 } else {
1046 bp->bio_resid = csio->resid;
1047 bp->bio_error = 0;
1048 if (bp->bio_resid != 0) {
1049 /*
1050 * Short transfer ???
1051 * XXX: not sure this is correct for partial
1052 * transfers at EOM
1053 */
1054 bp->bio_flags |= BIO_ERROR;
1055 }
1056 }
1057
1058 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1059 softc->outstanding_cmds--;
1060
1061 biofinish(bp, NULL, 0);
1062 break;
1063 }
1064 case CD_CCB_PROBE:
1065 {
1066 struct scsi_read_capacity_data *rdcap;
1067 char *announce_buf;
1068 struct cd_params *cdp;
1069 int error;
1070
1071 cdp = &softc->params;
1072 announce_buf = softc->announce_temp;
1073 bzero(announce_buf, CD_ANNOUNCETMP_SZ);
1074
1075 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr;
1076
1077 cdp->disksize = scsi_4btoul (rdcap->addr) + 1;
1078 cdp->blksize = scsi_4btoul (rdcap->length);
1079
1080 /*
1081 * Retry any UNIT ATTENTION type errors. They
1082 * are expected at boot.
1083 */
1084 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP ||
1085 (error = cderror(done_ccb, CAM_RETRY_SELTO,
1086 SF_RETRY_UA | SF_NO_PRINT)) == 0) {
1087 snprintf(announce_buf, CD_ANNOUNCETMP_SZ,
1088 "%juMB (%ju %u byte sectors)",
1089 ((uintmax_t)cdp->disksize * cdp->blksize) /
1090 (1024 * 1024),
1091 (uintmax_t)cdp->disksize, cdp->blksize);
1092 } else {
1093 if (error == ERESTART) {
1094 /*
1095 * A retry was scheuled, so
1096 * just return.
1097 */
1098 return;
1099 } else {
1100 int asc, ascq;
1101 int sense_key, error_code;
1102 int have_sense;
1103 cam_status status;
1104 struct ccb_getdev cgd;
1105
1106 /* Don't wedge this device's queue */
1107 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1108 cam_release_devq(done_ccb->ccb_h.path,
1109 /*relsim_flags*/0,
1110 /*reduction*/0,
1111 /*timeout*/0,
1112 /*getcount_only*/0);
1113
1114 status = done_ccb->ccb_h.status;
1115
1116 xpt_setup_ccb(&cgd.ccb_h,
1117 done_ccb->ccb_h.path,
1118 CAM_PRIORITY_NORMAL);
1119 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
1120 xpt_action((union ccb *)&cgd);
1121
1122 if (scsi_extract_sense_ccb(done_ccb,
1123 &error_code, &sense_key, &asc, &ascq))
1124 have_sense = TRUE;
1125 else
1126 have_sense = FALSE;
1127
1128 /*
1129 * Attach to anything that claims to be a
1130 * CDROM or WORM device, as long as it
1131 * doesn't return a "Logical unit not
1132 * supported" (0x25) error.
1133 */
1134 if ((have_sense) && (asc != 0x25)
1135 && (error_code == SSD_CURRENT_ERROR
1136 || error_code == SSD_DESC_CURRENT_ERROR)) {
1137 const char *sense_key_desc;
1138 const char *asc_desc;
1139
1140 scsi_sense_desc(sense_key, asc, ascq,
1141 &cgd.inq_data,
1142 &sense_key_desc,
1143 &asc_desc);
1144 snprintf(announce_buf,
1145 CD_ANNOUNCETMP_SZ,
1146 "Attempt to query device "
1147 "size failed: %s, %s",
1148 sense_key_desc,
1149 asc_desc);
1150 } else if ((have_sense == 0)
1151 && ((status & CAM_STATUS_MASK) ==
1152 CAM_SCSI_STATUS_ERROR)
1153 && (csio->scsi_status ==
1154 SCSI_STATUS_BUSY)) {
1155 snprintf(announce_buf,
1156 CD_ANNOUNCETMP_SZ,
1157 "Attempt to query device "
1158 "size failed: SCSI Status: %s",
1159 scsi_status_string(csio));
1160 } else if (SID_TYPE(&cgd.inq_data) == T_CDROM) {
1161 /*
1162 * We only print out an error for
1163 * CDROM type devices. For WORM
1164 * devices, we don't print out an
1165 * error since a few WORM devices
1166 * don't support CDROM commands.
1167 * If we have sense information, go
1168 * ahead and print it out.
1169 * Otherwise, just say that we
1170 * couldn't attach.
1171 */
1172
1173 /*
1174 * Just print out the error, not
1175 * the full probe message, when we
1176 * don't attach.
1177 */
1178 if (have_sense)
1179 scsi_sense_print(
1180 &done_ccb->csio);
1181 else {
1182 xpt_print(periph->path,
1183 "got CAM status %#x\n",
1184 done_ccb->ccb_h.status);
1185 }
1186 xpt_print(periph->path, "fatal error, "
1187 "failed to attach to device\n");
1188 /*
1189 * Invalidate this peripheral.
1190 */
1191 cam_periph_invalidate(periph);
1192
1193 announce_buf = NULL;
1194 } else {
1195
1196 /*
1197 * Invalidate this peripheral.
1198 */
1199 cam_periph_invalidate(periph);
1200 announce_buf = NULL;
1201 }
1202 }
1203 }
1204 free(rdcap, M_SCSICD);
1205 if (announce_buf != NULL) {
1206 struct sbuf sb;
1207
1208 sbuf_new(&sb, softc->announce_buf, CD_ANNOUNCE_SZ,
1209 SBUF_FIXEDLEN);
1210 xpt_announce_periph_sbuf(periph, &sb, announce_buf);
1211 xpt_announce_quirks_sbuf(periph, &sb, softc->quirks,
1212 CD_Q_BIT_STRING);
1213 sbuf_finish(&sb);
1214 sbuf_putbuf(&sb);
1215
1216 /*
1217 * Create our sysctl variables, now that we know
1218 * we have successfully attached.
1219 */
1220 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task);
1221 }
1222 softc->state = CD_STATE_NORMAL;
1223 /*
1224 * Since our peripheral may be invalidated by an error
1225 * above or an external event, we must release our CCB
1226 * before releasing the probe lock on the peripheral.
1227 * The peripheral will only go away once the last lock
1228 * is removed, and we need it around for the CCB release
1229 * operation.
1230 */
1231 xpt_release_ccb(done_ccb);
1232 cam_periph_unhold(periph);
1233 return;
1234 }
1235 case CD_CCB_TUR:
1236 {
1237 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1238
1239 if (cderror(done_ccb, CAM_RETRY_SELTO,
1240 SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) ==
1241 ERESTART)
1242 return;
1243 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1244 cam_release_devq(done_ccb->ccb_h.path,
1245 /*relsim_flags*/0,
1246 /*reduction*/0,
1247 /*timeout*/0,
1248 /*getcount_only*/0);
1249 }
1250 xpt_release_ccb(done_ccb);
1251 cam_periph_release_locked(periph);
1252 return;
1253 }
1254 default:
1255 break;
1256 }
1257 xpt_release_ccb(done_ccb);
1258 }
1259
1260 static union cd_pages *
cdgetpage(struct cd_mode_params * mode_params)1261 cdgetpage(struct cd_mode_params *mode_params)
1262 {
1263 union cd_pages *page;
1264
1265 if (mode_params->cdb_size == 10)
1266 page = (union cd_pages *)find_mode_page_10(
1267 (struct scsi_mode_header_10 *)mode_params->mode_buf);
1268 else
1269 page = (union cd_pages *)find_mode_page_6(
1270 (struct scsi_mode_header_6 *)mode_params->mode_buf);
1271
1272 return (page);
1273 }
1274
1275 static int
cdgetpagesize(int page_num)1276 cdgetpagesize(int page_num)
1277 {
1278 u_int i;
1279
1280 for (i = 0; i < nitems(cd_page_size_table); i++) {
1281 if (cd_page_size_table[i].page == page_num)
1282 return (cd_page_size_table[i].page_size);
1283 }
1284
1285 return (-1);
1286 }
1287
1288 static struct cd_toc_entry *
te_data_get_ptr(void * irtep,u_long cmd)1289 te_data_get_ptr(void *irtep, u_long cmd)
1290 {
1291 union {
1292 struct ioc_read_toc_entry irte;
1293 #ifdef COMPAT_FREEBSD32
1294 struct ioc_read_toc_entry32 irte32;
1295 #endif
1296 } *irteup;
1297
1298 irteup = irtep;
1299 switch (IOCPARM_LEN(cmd)) {
1300 case sizeof(irteup->irte):
1301 return (irteup->irte.data);
1302 #ifdef COMPAT_FREEBSD32
1303 case sizeof(irteup->irte32):
1304 return ((struct cd_toc_entry *)(uintptr_t)irteup->irte32.data);
1305 #endif
1306 default:
1307 panic("Unhandled ioctl command %ld", cmd);
1308 }
1309 }
1310
1311 static int
cdioctl(struct disk * dp,u_long cmd,void * addr,int flag,struct thread * td)1312 cdioctl(struct disk *dp, u_long cmd, void *addr, int flag, struct thread *td)
1313 {
1314
1315 struct cam_periph *periph;
1316 struct cd_softc *softc;
1317 int error = 0;
1318
1319 periph = (struct cam_periph *)dp->d_drv1;
1320 cam_periph_lock(periph);
1321
1322 softc = (struct cd_softc *)periph->softc;
1323
1324 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
1325 ("cdioctl(%#lx)\n", cmd));
1326
1327 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) {
1328 cam_periph_unlock(periph);
1329 cam_periph_release(periph);
1330 return (error);
1331 }
1332
1333 /*
1334 * If we don't have media loaded, check for it. If still don't
1335 * have media loaded, we can only do a load or eject.
1336 *
1337 * We only care whether media is loaded if this is a cd-specific ioctl
1338 * (thus the IOCGROUP check below). Note that this will break if
1339 * anyone adds any ioctls into the switch statement below that don't
1340 * have their ioctl group set to 'c'.
1341 */
1342 if (((softc->flags & CD_FLAG_VALID_MEDIA) == 0)
1343 && ((cmd != CDIOCCLOSE)
1344 && (cmd != CDIOCEJECT))
1345 && (IOCGROUP(cmd) == 'c')) {
1346 error = cdcheckmedia(periph);
1347 if (error != 0) {
1348 cam_periph_unhold(periph);
1349 cam_periph_unlock(periph);
1350 return (error);
1351 }
1352 }
1353 /*
1354 * Drop the lock here so later mallocs can use WAITOK. The periph
1355 * is essentially locked still with the cam_periph_hold call above.
1356 */
1357 cam_periph_unlock(periph);
1358
1359 switch (cmd) {
1360
1361 case CDIOCPLAYTRACKS:
1362 {
1363 struct ioc_play_track *args
1364 = (struct ioc_play_track *) addr;
1365 struct cd_mode_params params;
1366 union cd_pages *page;
1367
1368 params.alloc_len = sizeof(union cd_mode_data_6_10);
1369 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
1370 M_WAITOK | M_ZERO);
1371
1372 cam_periph_lock(periph);
1373 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1374 ("trying to do CDIOCPLAYTRACKS\n"));
1375
1376 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
1377 if (error) {
1378 free(params.mode_buf, M_SCSICD);
1379 cam_periph_unlock(periph);
1380 break;
1381 }
1382 page = cdgetpage(¶ms);
1383
1384 page->audio.flags &= ~CD_PA_SOTC;
1385 page->audio.flags |= CD_PA_IMMED;
1386 error = cdsetmode(periph, ¶ms);
1387 free(params.mode_buf, M_SCSICD);
1388 if (error) {
1389 cam_periph_unlock(periph);
1390 break;
1391 }
1392
1393 /*
1394 * This was originally implemented with the PLAY
1395 * AUDIO TRACK INDEX command, but that command was
1396 * deprecated after SCSI-2. Most (all?) SCSI CDROM
1397 * drives support it but ATAPI and ATAPI-derivative
1398 * drives don't seem to support it. So we keep a
1399 * cache of the table of contents and translate
1400 * track numbers to MSF format.
1401 */
1402 if (softc->flags & CD_FLAG_VALID_TOC) {
1403 union msf_lba *sentry, *eentry;
1404 int st, et;
1405
1406 if (args->end_track <
1407 softc->toc.header.ending_track + 1)
1408 args->end_track++;
1409 if (args->end_track >
1410 softc->toc.header.ending_track + 1)
1411 args->end_track =
1412 softc->toc.header.ending_track + 1;
1413 st = args->start_track -
1414 softc->toc.header.starting_track;
1415 et = args->end_track -
1416 softc->toc.header.starting_track;
1417 if ((st < 0)
1418 || (et < 0)
1419 || (st > (softc->toc.header.ending_track -
1420 softc->toc.header.starting_track))) {
1421 error = EINVAL;
1422 cam_periph_unlock(periph);
1423 break;
1424 }
1425 sentry = &softc->toc.entries[st].addr;
1426 eentry = &softc->toc.entries[et].addr;
1427 error = cdplaymsf(periph,
1428 sentry->msf.minute,
1429 sentry->msf.second,
1430 sentry->msf.frame,
1431 eentry->msf.minute,
1432 eentry->msf.second,
1433 eentry->msf.frame);
1434 } else {
1435 /*
1436 * If we don't have a valid TOC, try the
1437 * play track index command. It is part of
1438 * the SCSI-2 spec, but was removed in the
1439 * MMC specs. ATAPI and ATAPI-derived
1440 * drives don't support it.
1441 */
1442 if (softc->quirks & CD_Q_BCD_TRACKS) {
1443 args->start_track =
1444 bin2bcd(args->start_track);
1445 args->end_track =
1446 bin2bcd(args->end_track);
1447 }
1448 error = cdplaytracks(periph,
1449 args->start_track,
1450 args->start_index,
1451 args->end_track,
1452 args->end_index);
1453 }
1454 cam_periph_unlock(periph);
1455 }
1456 break;
1457 case CDIOCPLAYMSF:
1458 {
1459 struct ioc_play_msf *args
1460 = (struct ioc_play_msf *) addr;
1461 struct cd_mode_params params;
1462 union cd_pages *page;
1463
1464 params.alloc_len = sizeof(union cd_mode_data_6_10);
1465 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
1466 M_WAITOK | M_ZERO);
1467
1468 cam_periph_lock(periph);
1469 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1470 ("trying to do CDIOCPLAYMSF\n"));
1471
1472 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
1473 if (error) {
1474 free(params.mode_buf, M_SCSICD);
1475 cam_periph_unlock(periph);
1476 break;
1477 }
1478 page = cdgetpage(¶ms);
1479
1480 page->audio.flags &= ~CD_PA_SOTC;
1481 page->audio.flags |= CD_PA_IMMED;
1482 error = cdsetmode(periph, ¶ms);
1483 free(params.mode_buf, M_SCSICD);
1484 if (error) {
1485 cam_periph_unlock(periph);
1486 break;
1487 }
1488 error = cdplaymsf(periph,
1489 args->start_m,
1490 args->start_s,
1491 args->start_f,
1492 args->end_m,
1493 args->end_s,
1494 args->end_f);
1495 cam_periph_unlock(periph);
1496 }
1497 break;
1498 case CDIOCPLAYBLOCKS:
1499 {
1500 struct ioc_play_blocks *args
1501 = (struct ioc_play_blocks *) addr;
1502 struct cd_mode_params params;
1503 union cd_pages *page;
1504
1505 params.alloc_len = sizeof(union cd_mode_data_6_10);
1506 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
1507 M_WAITOK | M_ZERO);
1508
1509 cam_periph_lock(periph);
1510 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1511 ("trying to do CDIOCPLAYBLOCKS\n"));
1512
1513
1514 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
1515 if (error) {
1516 free(params.mode_buf, M_SCSICD);
1517 cam_periph_unlock(periph);
1518 break;
1519 }
1520 page = cdgetpage(¶ms);
1521
1522 page->audio.flags &= ~CD_PA_SOTC;
1523 page->audio.flags |= CD_PA_IMMED;
1524 error = cdsetmode(periph, ¶ms);
1525 free(params.mode_buf, M_SCSICD);
1526 if (error) {
1527 cam_periph_unlock(periph);
1528 break;
1529 }
1530 error = cdplay(periph, args->blk, args->len);
1531 cam_periph_unlock(periph);
1532 }
1533 break;
1534 case CDIOCREADSUBCHANNEL:
1535 {
1536 struct ioc_read_subchannel *args
1537 = (struct ioc_read_subchannel *) addr;
1538 struct cd_sub_channel_info *data;
1539 u_int32_t len = args->data_len;
1540
1541 data = malloc(sizeof(struct cd_sub_channel_info),
1542 M_SCSICD, M_WAITOK | M_ZERO);
1543
1544 cam_periph_lock(periph);
1545 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1546 ("trying to do CDIOCREADSUBCHANNEL\n"));
1547
1548 if ((len > sizeof(struct cd_sub_channel_info)) ||
1549 (len < sizeof(struct cd_sub_channel_header))) {
1550 printf(
1551 "scsi_cd: cdioctl: "
1552 "cdioreadsubchannel: error, len=%d\n",
1553 len);
1554 error = EINVAL;
1555 free(data, M_SCSICD);
1556 cam_periph_unlock(periph);
1557 break;
1558 }
1559
1560 if (softc->quirks & CD_Q_BCD_TRACKS)
1561 args->track = bin2bcd(args->track);
1562
1563 error = cdreadsubchannel(periph, args->address_format,
1564 args->data_format, args->track, data, len);
1565
1566 if (error) {
1567 free(data, M_SCSICD);
1568 cam_periph_unlock(periph);
1569 break;
1570 }
1571 if (softc->quirks & CD_Q_BCD_TRACKS)
1572 data->what.track_info.track_number =
1573 bcd2bin(data->what.track_info.track_number);
1574 len = min(len, ((data->header.data_len[0] << 8) +
1575 data->header.data_len[1] +
1576 sizeof(struct cd_sub_channel_header)));
1577 cam_periph_unlock(periph);
1578 error = copyout(data, args->data, len);
1579 free(data, M_SCSICD);
1580 }
1581 break;
1582
1583 case CDIOREADTOCHEADER:
1584 {
1585 struct ioc_toc_header *th;
1586
1587 th = malloc(sizeof(struct ioc_toc_header), M_SCSICD,
1588 M_WAITOK | M_ZERO);
1589
1590 cam_periph_lock(periph);
1591 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1592 ("trying to do CDIOREADTOCHEADER\n"));
1593
1594 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
1595 sizeof (*th), /*sense_flags*/SF_NO_PRINT);
1596 if (error) {
1597 free(th, M_SCSICD);
1598 cam_periph_unlock(periph);
1599 break;
1600 }
1601 if (softc->quirks & CD_Q_BCD_TRACKS) {
1602 /* we are going to have to convert the BCD
1603 * encoding on the cd to what is expected
1604 */
1605 th->starting_track =
1606 bcd2bin(th->starting_track);
1607 th->ending_track = bcd2bin(th->ending_track);
1608 }
1609 th->len = ntohs(th->len);
1610 bcopy(th, addr, sizeof(*th));
1611 free(th, M_SCSICD);
1612 cam_periph_unlock(periph);
1613 }
1614 break;
1615 case CDIOREADTOCENTRYS:
1616 #ifdef COMPAT_FREEBSD32
1617 case CDIOREADTOCENTRYS_32:
1618 #endif
1619 {
1620 struct cd_tocdata *data;
1621 struct cd_toc_single *lead;
1622 struct ioc_read_toc_entry *te =
1623 (struct ioc_read_toc_entry *) addr;
1624 struct ioc_toc_header *th;
1625 u_int32_t len, readlen, idx, num;
1626 u_int32_t starting_track = te->starting_track;
1627
1628 data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO);
1629 lead = malloc(sizeof(*lead), M_SCSICD, M_WAITOK | M_ZERO);
1630
1631 cam_periph_lock(periph);
1632 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1633 ("trying to do CDIOREADTOCENTRYS\n"));
1634
1635 if (te->data_len < sizeof(struct cd_toc_entry)
1636 || (te->data_len % sizeof(struct cd_toc_entry)) != 0
1637 || (te->address_format != CD_MSF_FORMAT
1638 && te->address_format != CD_LBA_FORMAT)) {
1639 error = EINVAL;
1640 printf("scsi_cd: error in readtocentries, "
1641 "returning EINVAL\n");
1642 free(data, M_SCSICD);
1643 free(lead, M_SCSICD);
1644 cam_periph_unlock(periph);
1645 break;
1646 }
1647
1648 th = &data->header;
1649 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
1650 sizeof (*th), /*sense_flags*/0);
1651 if (error) {
1652 free(data, M_SCSICD);
1653 free(lead, M_SCSICD);
1654 cam_periph_unlock(periph);
1655 break;
1656 }
1657
1658 if (softc->quirks & CD_Q_BCD_TRACKS) {
1659 /* we are going to have to convert the BCD
1660 * encoding on the cd to what is expected
1661 */
1662 th->starting_track =
1663 bcd2bin(th->starting_track);
1664 th->ending_track = bcd2bin(th->ending_track);
1665 }
1666
1667 if (starting_track == 0)
1668 starting_track = th->starting_track;
1669 else if (starting_track == LEADOUT)
1670 starting_track = th->ending_track + 1;
1671 else if (starting_track < th->starting_track ||
1672 starting_track > th->ending_track + 1) {
1673 printf("scsi_cd: error in readtocentries, "
1674 "returning EINVAL\n");
1675 free(data, M_SCSICD);
1676 free(lead, M_SCSICD);
1677 cam_periph_unlock(periph);
1678 error = EINVAL;
1679 break;
1680 }
1681
1682 /* calculate reading length without leadout entry */
1683 readlen = (th->ending_track - starting_track + 1) *
1684 sizeof(struct cd_toc_entry);
1685
1686 /* and with leadout entry */
1687 len = readlen + sizeof(struct cd_toc_entry);
1688 if (te->data_len < len) {
1689 len = te->data_len;
1690 if (readlen > len)
1691 readlen = len;
1692 }
1693 if (len > sizeof(data->entries)) {
1694 printf("scsi_cd: error in readtocentries, "
1695 "returning EINVAL\n");
1696 error = EINVAL;
1697 free(data, M_SCSICD);
1698 free(lead, M_SCSICD);
1699 cam_periph_unlock(periph);
1700 break;
1701 }
1702 num = len / sizeof(struct cd_toc_entry);
1703
1704 if (readlen > 0) {
1705 error = cdreadtoc(periph, te->address_format,
1706 starting_track,
1707 (u_int8_t *)data,
1708 readlen + sizeof (*th),
1709 /*sense_flags*/0);
1710 if (error) {
1711 free(data, M_SCSICD);
1712 free(lead, M_SCSICD);
1713 cam_periph_unlock(periph);
1714 break;
1715 }
1716 }
1717
1718 /* make leadout entry if needed */
1719 idx = starting_track + num - 1;
1720 if (softc->quirks & CD_Q_BCD_TRACKS)
1721 th->ending_track = bcd2bin(th->ending_track);
1722 if (idx == th->ending_track + 1) {
1723 error = cdreadtoc(periph, te->address_format,
1724 LEADOUT, (u_int8_t *)lead,
1725 sizeof(*lead),
1726 /*sense_flags*/0);
1727 if (error) {
1728 free(data, M_SCSICD);
1729 free(lead, M_SCSICD);
1730 cam_periph_unlock(periph);
1731 break;
1732 }
1733 data->entries[idx - starting_track] =
1734 lead->entry;
1735 }
1736 if (softc->quirks & CD_Q_BCD_TRACKS) {
1737 for (idx = 0; idx < num - 1; idx++) {
1738 data->entries[idx].track =
1739 bcd2bin(data->entries[idx].track);
1740 }
1741 }
1742
1743 cam_periph_unlock(periph);
1744 error = copyout(data->entries, te_data_get_ptr(te, cmd),
1745 len);
1746 free(data, M_SCSICD);
1747 free(lead, M_SCSICD);
1748 }
1749 break;
1750 case CDIOREADTOCENTRY:
1751 {
1752 struct cd_toc_single *data;
1753 struct ioc_read_toc_single_entry *te =
1754 (struct ioc_read_toc_single_entry *) addr;
1755 struct ioc_toc_header *th;
1756 u_int32_t track;
1757
1758 data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO);
1759
1760 cam_periph_lock(periph);
1761 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1762 ("trying to do CDIOREADTOCENTRY\n"));
1763
1764 if (te->address_format != CD_MSF_FORMAT
1765 && te->address_format != CD_LBA_FORMAT) {
1766 printf("error in readtocentry, "
1767 " returning EINVAL\n");
1768 free(data, M_SCSICD);
1769 error = EINVAL;
1770 cam_periph_unlock(periph);
1771 break;
1772 }
1773
1774 th = &data->header;
1775 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
1776 sizeof (*th), /*sense_flags*/0);
1777 if (error) {
1778 free(data, M_SCSICD);
1779 cam_periph_unlock(periph);
1780 break;
1781 }
1782
1783 if (softc->quirks & CD_Q_BCD_TRACKS) {
1784 /* we are going to have to convert the BCD
1785 * encoding on the cd to what is expected
1786 */
1787 th->starting_track =
1788 bcd2bin(th->starting_track);
1789 th->ending_track = bcd2bin(th->ending_track);
1790 }
1791 track = te->track;
1792 if (track == 0)
1793 track = th->starting_track;
1794 else if (track == LEADOUT)
1795 /* OK */;
1796 else if (track < th->starting_track ||
1797 track > th->ending_track + 1) {
1798 printf("error in readtocentry, "
1799 " returning EINVAL\n");
1800 free(data, M_SCSICD);
1801 error = EINVAL;
1802 cam_periph_unlock(periph);
1803 break;
1804 }
1805
1806 error = cdreadtoc(periph, te->address_format, track,
1807 (u_int8_t *)data, sizeof(*data),
1808 /*sense_flags*/0);
1809 if (error) {
1810 free(data, M_SCSICD);
1811 cam_periph_unlock(periph);
1812 break;
1813 }
1814
1815 if (softc->quirks & CD_Q_BCD_TRACKS)
1816 data->entry.track = bcd2bin(data->entry.track);
1817 bcopy(&data->entry, &te->entry,
1818 sizeof(struct cd_toc_entry));
1819 free(data, M_SCSICD);
1820 cam_periph_unlock(periph);
1821 }
1822 break;
1823 case CDIOCSETPATCH:
1824 {
1825 struct ioc_patch *arg = (struct ioc_patch *)addr;
1826 struct cd_mode_params params;
1827 union cd_pages *page;
1828
1829 params.alloc_len = sizeof(union cd_mode_data_6_10);
1830 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
1831 M_WAITOK | M_ZERO);
1832
1833 cam_periph_lock(periph);
1834 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1835 ("trying to do CDIOCSETPATCH\n"));
1836
1837 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
1838 if (error) {
1839 free(params.mode_buf, M_SCSICD);
1840 cam_periph_unlock(periph);
1841 break;
1842 }
1843 page = cdgetpage(¶ms);
1844
1845 page->audio.port[LEFT_PORT].channels =
1846 arg->patch[0];
1847 page->audio.port[RIGHT_PORT].channels =
1848 arg->patch[1];
1849 page->audio.port[2].channels = arg->patch[2];
1850 page->audio.port[3].channels = arg->patch[3];
1851 error = cdsetmode(periph, ¶ms);
1852 free(params.mode_buf, M_SCSICD);
1853 cam_periph_unlock(periph);
1854 }
1855 break;
1856 case CDIOCGETVOL:
1857 {
1858 struct ioc_vol *arg = (struct ioc_vol *) addr;
1859 struct cd_mode_params params;
1860 union cd_pages *page;
1861
1862 params.alloc_len = sizeof(union cd_mode_data_6_10);
1863 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
1864 M_WAITOK | M_ZERO);
1865
1866 cam_periph_lock(periph);
1867 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1868 ("trying to do CDIOCGETVOL\n"));
1869
1870 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
1871 if (error) {
1872 free(params.mode_buf, M_SCSICD);
1873 cam_periph_unlock(periph);
1874 break;
1875 }
1876 page = cdgetpage(¶ms);
1877
1878 arg->vol[LEFT_PORT] =
1879 page->audio.port[LEFT_PORT].volume;
1880 arg->vol[RIGHT_PORT] =
1881 page->audio.port[RIGHT_PORT].volume;
1882 arg->vol[2] = page->audio.port[2].volume;
1883 arg->vol[3] = page->audio.port[3].volume;
1884 free(params.mode_buf, M_SCSICD);
1885 cam_periph_unlock(periph);
1886 }
1887 break;
1888 case CDIOCSETVOL:
1889 {
1890 struct ioc_vol *arg = (struct ioc_vol *) addr;
1891 struct cd_mode_params params;
1892 union cd_pages *page;
1893
1894 params.alloc_len = sizeof(union cd_mode_data_6_10);
1895 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
1896 M_WAITOK | M_ZERO);
1897
1898 cam_periph_lock(periph);
1899 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1900 ("trying to do CDIOCSETVOL\n"));
1901
1902 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
1903 if (error) {
1904 free(params.mode_buf, M_SCSICD);
1905 cam_periph_unlock(periph);
1906 break;
1907 }
1908 page = cdgetpage(¶ms);
1909
1910 page->audio.port[LEFT_PORT].channels = CHANNEL_0;
1911 page->audio.port[LEFT_PORT].volume =
1912 arg->vol[LEFT_PORT];
1913 page->audio.port[RIGHT_PORT].channels = CHANNEL_1;
1914 page->audio.port[RIGHT_PORT].volume =
1915 arg->vol[RIGHT_PORT];
1916 page->audio.port[2].volume = arg->vol[2];
1917 page->audio.port[3].volume = arg->vol[3];
1918 error = cdsetmode(periph, ¶ms);
1919 cam_periph_unlock(periph);
1920 free(params.mode_buf, M_SCSICD);
1921 }
1922 break;
1923 case CDIOCSETMONO:
1924 {
1925 struct cd_mode_params params;
1926 union cd_pages *page;
1927
1928 params.alloc_len = sizeof(union cd_mode_data_6_10);
1929 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
1930 M_WAITOK | M_ZERO);
1931
1932 cam_periph_lock(periph);
1933 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1934 ("trying to do CDIOCSETMONO\n"));
1935
1936 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
1937 if (error) {
1938 free(params.mode_buf, M_SCSICD);
1939 cam_periph_unlock(periph);
1940 break;
1941 }
1942 page = cdgetpage(¶ms);
1943
1944 page->audio.port[LEFT_PORT].channels =
1945 LEFT_CHANNEL | RIGHT_CHANNEL;
1946 page->audio.port[RIGHT_PORT].channels =
1947 LEFT_CHANNEL | RIGHT_CHANNEL;
1948 page->audio.port[2].channels = 0;
1949 page->audio.port[3].channels = 0;
1950 error = cdsetmode(periph, ¶ms);
1951 cam_periph_unlock(periph);
1952 free(params.mode_buf, M_SCSICD);
1953 }
1954 break;
1955 case CDIOCSETSTEREO:
1956 {
1957 struct cd_mode_params params;
1958 union cd_pages *page;
1959
1960 params.alloc_len = sizeof(union cd_mode_data_6_10);
1961 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
1962 M_WAITOK | M_ZERO);
1963
1964 cam_periph_lock(periph);
1965 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1966 ("trying to do CDIOCSETSTEREO\n"));
1967
1968 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
1969 if (error) {
1970 free(params.mode_buf, M_SCSICD);
1971 cam_periph_unlock(periph);
1972 break;
1973 }
1974 page = cdgetpage(¶ms);
1975
1976 page->audio.port[LEFT_PORT].channels =
1977 LEFT_CHANNEL;
1978 page->audio.port[RIGHT_PORT].channels =
1979 RIGHT_CHANNEL;
1980 page->audio.port[2].channels = 0;
1981 page->audio.port[3].channels = 0;
1982 error = cdsetmode(periph, ¶ms);
1983 free(params.mode_buf, M_SCSICD);
1984 cam_periph_unlock(periph);
1985 }
1986 break;
1987 case CDIOCSETMUTE:
1988 {
1989 struct cd_mode_params params;
1990 union cd_pages *page;
1991
1992 params.alloc_len = sizeof(union cd_mode_data_6_10);
1993 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
1994 M_WAITOK | M_ZERO);
1995
1996 cam_periph_lock(periph);
1997 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1998 ("trying to do CDIOCSETMUTE\n"));
1999
2000 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2001 if (error) {
2002 free(params.mode_buf, M_SCSICD);
2003 cam_periph_unlock(periph);
2004 break;
2005 }
2006 page = cdgetpage(¶ms);
2007
2008 page->audio.port[LEFT_PORT].channels = 0;
2009 page->audio.port[RIGHT_PORT].channels = 0;
2010 page->audio.port[2].channels = 0;
2011 page->audio.port[3].channels = 0;
2012 error = cdsetmode(periph, ¶ms);
2013 free(params.mode_buf, M_SCSICD);
2014 cam_periph_unlock(periph);
2015 }
2016 break;
2017 case CDIOCSETLEFT:
2018 {
2019 struct cd_mode_params params;
2020 union cd_pages *page;
2021
2022 params.alloc_len = sizeof(union cd_mode_data_6_10);
2023 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2024 M_WAITOK | M_ZERO);
2025
2026 cam_periph_lock(periph);
2027 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2028 ("trying to do CDIOCSETLEFT\n"));
2029
2030 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2031 if (error) {
2032 free(params.mode_buf, M_SCSICD);
2033 cam_periph_unlock(periph);
2034 break;
2035 }
2036 page = cdgetpage(¶ms);
2037
2038 page->audio.port[LEFT_PORT].channels = LEFT_CHANNEL;
2039 page->audio.port[RIGHT_PORT].channels = LEFT_CHANNEL;
2040 page->audio.port[2].channels = 0;
2041 page->audio.port[3].channels = 0;
2042 error = cdsetmode(periph, ¶ms);
2043 free(params.mode_buf, M_SCSICD);
2044 cam_periph_unlock(periph);
2045 }
2046 break;
2047 case CDIOCSETRIGHT:
2048 {
2049 struct cd_mode_params params;
2050 union cd_pages *page;
2051
2052 params.alloc_len = sizeof(union cd_mode_data_6_10);
2053 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2054 M_WAITOK | M_ZERO);
2055
2056 cam_periph_lock(periph);
2057 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2058 ("trying to do CDIOCSETRIGHT\n"));
2059
2060 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2061 if (error) {
2062 free(params.mode_buf, M_SCSICD);
2063 cam_periph_unlock(periph);
2064 break;
2065 }
2066 page = cdgetpage(¶ms);
2067
2068 page->audio.port[LEFT_PORT].channels = RIGHT_CHANNEL;
2069 page->audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL;
2070 page->audio.port[2].channels = 0;
2071 page->audio.port[3].channels = 0;
2072 error = cdsetmode(periph, ¶ms);
2073 free(params.mode_buf, M_SCSICD);
2074 cam_periph_unlock(periph);
2075 }
2076 break;
2077 case CDIOCRESUME:
2078 cam_periph_lock(periph);
2079 error = cdpause(periph, 1);
2080 cam_periph_unlock(periph);
2081 break;
2082 case CDIOCPAUSE:
2083 cam_periph_lock(periph);
2084 error = cdpause(periph, 0);
2085 cam_periph_unlock(periph);
2086 break;
2087 case CDIOCSTART:
2088 cam_periph_lock(periph);
2089 error = cdstartunit(periph, 0);
2090 cam_periph_unlock(periph);
2091 break;
2092 case CDIOCCLOSE:
2093 cam_periph_lock(periph);
2094 error = cdstartunit(periph, 1);
2095 cam_periph_unlock(periph);
2096 break;
2097 case CDIOCSTOP:
2098 cam_periph_lock(periph);
2099 error = cdstopunit(periph, 0);
2100 cam_periph_unlock(periph);
2101 break;
2102 case CDIOCEJECT:
2103 cam_periph_lock(periph);
2104 error = cdstopunit(periph, 1);
2105 cam_periph_unlock(periph);
2106 break;
2107 case CDIOCALLOW:
2108 cam_periph_lock(periph);
2109 cdprevent(periph, PR_ALLOW);
2110 cam_periph_unlock(periph);
2111 break;
2112 case CDIOCPREVENT:
2113 cam_periph_lock(periph);
2114 cdprevent(periph, PR_PREVENT);
2115 cam_periph_unlock(periph);
2116 break;
2117 case CDIOCSETDEBUG:
2118 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */
2119 error = ENOTTY;
2120 break;
2121 case CDIOCCLRDEBUG:
2122 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */
2123 error = ENOTTY;
2124 break;
2125 case CDIOCRESET:
2126 /* return (cd_reset(periph)); */
2127 error = ENOTTY;
2128 break;
2129 case CDRIOCREADSPEED:
2130 cam_periph_lock(periph);
2131 error = cdsetspeed(periph, *(u_int32_t *)addr, CDR_MAX_SPEED);
2132 cam_periph_unlock(periph);
2133 break;
2134 case CDRIOCWRITESPEED:
2135 cam_periph_lock(periph);
2136 error = cdsetspeed(periph, CDR_MAX_SPEED, *(u_int32_t *)addr);
2137 cam_periph_unlock(periph);
2138 break;
2139 case CDRIOCGETBLOCKSIZE:
2140 *(int *)addr = softc->params.blksize;
2141 break;
2142 case CDRIOCSETBLOCKSIZE:
2143 if (*(int *)addr <= 0) {
2144 error = EINVAL;
2145 break;
2146 }
2147 softc->disk->d_sectorsize = softc->params.blksize = *(int *)addr;
2148 break;
2149 case DVDIOCSENDKEY:
2150 case DVDIOCREPORTKEY: {
2151 struct dvd_authinfo *authinfo;
2152
2153 authinfo = (struct dvd_authinfo *)addr;
2154
2155 if (cmd == DVDIOCREPORTKEY)
2156 error = cdreportkey(periph, authinfo);
2157 else
2158 error = cdsendkey(periph, authinfo);
2159 break;
2160 }
2161 case DVDIOCREADSTRUCTURE: {
2162 struct dvd_struct *dvdstruct;
2163
2164 dvdstruct = (struct dvd_struct *)addr;
2165
2166 error = cdreaddvdstructure(periph, dvdstruct);
2167
2168 break;
2169 }
2170 default:
2171 cam_periph_lock(periph);
2172 error = cam_periph_ioctl(periph, cmd, addr, cderror);
2173 cam_periph_unlock(periph);
2174 break;
2175 }
2176
2177 cam_periph_lock(periph);
2178 cam_periph_unhold(periph);
2179
2180 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n"));
2181 if (error && bootverbose) {
2182 printf("scsi_cd.c::ioctl cmd=%08lx error=%d\n", cmd, error);
2183 }
2184 cam_periph_unlock(periph);
2185
2186 return (error);
2187 }
2188
2189 static void
cdprevent(struct cam_periph * periph,int action)2190 cdprevent(struct cam_periph *periph, int action)
2191 {
2192 union ccb *ccb;
2193 struct cd_softc *softc;
2194 int error;
2195
2196 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n"));
2197
2198 softc = (struct cd_softc *)periph->softc;
2199
2200 if (((action == PR_ALLOW)
2201 && (softc->flags & CD_FLAG_DISC_LOCKED) == 0)
2202 || ((action == PR_PREVENT)
2203 && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) {
2204 return;
2205 }
2206
2207 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2208
2209 scsi_prevent(&ccb->csio,
2210 /*retries*/ cd_retry_count,
2211 /*cbfcnp*/NULL,
2212 MSG_SIMPLE_Q_TAG,
2213 action,
2214 SSD_FULL_SIZE,
2215 /* timeout */60000);
2216
2217 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
2218 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT);
2219
2220 xpt_release_ccb(ccb);
2221
2222 if (error == 0) {
2223 if (action == PR_ALLOW)
2224 softc->flags &= ~CD_FLAG_DISC_LOCKED;
2225 else
2226 softc->flags |= CD_FLAG_DISC_LOCKED;
2227 }
2228 }
2229
2230 /*
2231 * XXX: the disk media and sector size is only really able to change
2232 * XXX: while the device is closed.
2233 */
2234 static int
cdcheckmedia(struct cam_periph * periph)2235 cdcheckmedia(struct cam_periph *periph)
2236 {
2237 struct cd_softc *softc;
2238 struct ioc_toc_header *toch;
2239 struct cd_toc_single leadout;
2240 u_int32_t size, toclen;
2241 int error, num_entries, cdindex;
2242
2243 softc = (struct cd_softc *)periph->softc;
2244
2245 cdprevent(periph, PR_PREVENT);
2246 softc->disk->d_sectorsize = 2048;
2247 softc->disk->d_mediasize = 0;
2248
2249 /*
2250 * Get the disc size and block size. If we can't get it, we don't
2251 * have media, most likely.
2252 */
2253 if ((error = cdsize(periph, &size)) != 0) {
2254 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC);
2255 cdprevent(periph, PR_ALLOW);
2256 return (error);
2257 } else {
2258 softc->flags |= CD_FLAG_SAW_MEDIA | CD_FLAG_VALID_MEDIA;
2259 softc->disk->d_sectorsize = softc->params.blksize;
2260 softc->disk->d_mediasize =
2261 (off_t)softc->params.blksize * softc->params.disksize;
2262 }
2263
2264 /*
2265 * Now we check the table of contents. This (currently) is only
2266 * used for the CDIOCPLAYTRACKS ioctl. It may be used later to do
2267 * things like present a separate entry in /dev for each track,
2268 * like that acd(4) driver does.
2269 */
2270 bzero(&softc->toc, sizeof(softc->toc));
2271 toch = &softc->toc.header;
2272 /*
2273 * We will get errors here for media that doesn't have a table of
2274 * contents. According to the MMC-3 spec: "When a Read TOC/PMA/ATIP
2275 * command is presented for a DDCD/CD-R/RW media, where the first TOC
2276 * has not been recorded (no complete session) and the Format codes
2277 * 0000b, 0001b, or 0010b are specified, this command shall be rejected
2278 * with an INVALID FIELD IN CDB. Devices that are not capable of
2279 * reading an incomplete session on DDC/CD-R/RW media shall report
2280 * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT."
2281 *
2282 * So this isn't fatal if we can't read the table of contents, it
2283 * just means that the user won't be able to issue the play tracks
2284 * ioctl, and likely lots of other stuff won't work either. They
2285 * need to burn the CD before we can do a whole lot with it. So
2286 * we don't print anything here if we get an error back.
2287 */
2288 error = cdreadtoc(periph, 0, 0, (u_int8_t *)toch, sizeof(*toch),
2289 SF_NO_PRINT);
2290 /*
2291 * Errors in reading the table of contents aren't fatal, we just
2292 * won't have a valid table of contents cached.
2293 */
2294 if (error != 0) {
2295 error = 0;
2296 bzero(&softc->toc, sizeof(softc->toc));
2297 goto bailout;
2298 }
2299
2300 if (softc->quirks & CD_Q_BCD_TRACKS) {
2301 toch->starting_track = bcd2bin(toch->starting_track);
2302 toch->ending_track = bcd2bin(toch->ending_track);
2303 }
2304
2305 /* Number of TOC entries, plus leadout */
2306 num_entries = (toch->ending_track - toch->starting_track) + 2;
2307
2308 if (num_entries <= 0)
2309 goto bailout;
2310
2311 toclen = num_entries * sizeof(struct cd_toc_entry);
2312
2313 error = cdreadtoc(periph, CD_MSF_FORMAT, toch->starting_track,
2314 (u_int8_t *)&softc->toc, toclen + sizeof(*toch),
2315 SF_NO_PRINT);
2316 if (error != 0) {
2317 error = 0;
2318 bzero(&softc->toc, sizeof(softc->toc));
2319 goto bailout;
2320 }
2321
2322 if (softc->quirks & CD_Q_BCD_TRACKS) {
2323 toch->starting_track = bcd2bin(toch->starting_track);
2324 toch->ending_track = bcd2bin(toch->ending_track);
2325 }
2326 /*
2327 * XXX KDM is this necessary? Probably only if the drive doesn't
2328 * return leadout information with the table of contents.
2329 */
2330 cdindex = toch->starting_track + num_entries -1;
2331 if (cdindex == toch->ending_track + 1) {
2332
2333 error = cdreadtoc(periph, CD_MSF_FORMAT, LEADOUT,
2334 (u_int8_t *)&leadout, sizeof(leadout),
2335 SF_NO_PRINT);
2336 if (error != 0) {
2337 error = 0;
2338 goto bailout;
2339 }
2340 softc->toc.entries[cdindex - toch->starting_track] =
2341 leadout.entry;
2342 }
2343 if (softc->quirks & CD_Q_BCD_TRACKS) {
2344 for (cdindex = 0; cdindex < num_entries - 1; cdindex++) {
2345 softc->toc.entries[cdindex].track =
2346 bcd2bin(softc->toc.entries[cdindex].track);
2347 }
2348 }
2349
2350 softc->flags |= CD_FLAG_VALID_TOC;
2351
2352 /* If the first track is audio, correct sector size. */
2353 if ((softc->toc.entries[0].control & 4) == 0) {
2354 softc->disk->d_sectorsize = softc->params.blksize = 2352;
2355 softc->disk->d_mediasize =
2356 (off_t)softc->params.blksize * softc->params.disksize;
2357 }
2358
2359 bailout:
2360
2361 /*
2362 * We unconditionally (re)set the blocksize each time the
2363 * CD device is opened. This is because the CD can change,
2364 * and therefore the blocksize might change.
2365 * XXX problems here if some slice or partition is still
2366 * open with the old size?
2367 */
2368 if ((softc->disk->d_devstat->flags & DEVSTAT_BS_UNAVAILABLE) != 0)
2369 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
2370 softc->disk->d_devstat->block_size = softc->params.blksize;
2371
2372 return (error);
2373 }
2374
2375 static int
cdsize(struct cam_periph * periph,u_int32_t * size)2376 cdsize(struct cam_periph *periph, u_int32_t *size)
2377 {
2378 struct cd_softc *softc;
2379 union ccb *ccb;
2380 struct scsi_read_capacity_data *rcap_buf;
2381 int error;
2382
2383 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n"));
2384
2385 softc = (struct cd_softc *)periph->softc;
2386
2387 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2388
2389 /* XXX Should be M_WAITOK */
2390 rcap_buf = malloc(sizeof(struct scsi_read_capacity_data),
2391 M_SCSICD, M_NOWAIT | M_ZERO);
2392 if (rcap_buf == NULL)
2393 return (ENOMEM);
2394
2395 scsi_read_capacity(&ccb->csio,
2396 /*retries*/ cd_retry_count,
2397 /*cbfcnp*/NULL,
2398 MSG_SIMPLE_Q_TAG,
2399 rcap_buf,
2400 SSD_FULL_SIZE,
2401 /* timeout */20000);
2402
2403 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
2404 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT);
2405
2406 xpt_release_ccb(ccb);
2407
2408 softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1;
2409 softc->params.blksize = scsi_4btoul(rcap_buf->length);
2410 /* Make sure we got at least some block size. */
2411 if (error == 0 && softc->params.blksize == 0)
2412 error = EIO;
2413 /*
2414 * SCSI-3 mandates that the reported blocksize shall be 2048.
2415 * Older drives sometimes report funny values, trim it down to
2416 * 2048, or other parts of the kernel will get confused.
2417 *
2418 * XXX we leave drives alone that might report 512 bytes, as
2419 * well as drives reporting more weird sizes like perhaps 4K.
2420 */
2421 if (softc->params.blksize > 2048 && softc->params.blksize <= 2352)
2422 softc->params.blksize = 2048;
2423
2424 free(rcap_buf, M_SCSICD);
2425 *size = softc->params.disksize;
2426
2427 return (error);
2428
2429 }
2430
2431 static int
cd6byteworkaround(union ccb * ccb)2432 cd6byteworkaround(union ccb *ccb)
2433 {
2434 u_int8_t *cdb;
2435 struct cam_periph *periph;
2436 struct cd_softc *softc;
2437 struct cd_mode_params *params;
2438 int frozen, found;
2439
2440 periph = xpt_path_periph(ccb->ccb_h.path);
2441 softc = (struct cd_softc *)periph->softc;
2442
2443 cdb = ccb->csio.cdb_io.cdb_bytes;
2444
2445 if ((ccb->ccb_h.flags & CAM_CDB_POINTER)
2446 || ((cdb[0] != MODE_SENSE_6)
2447 && (cdb[0] != MODE_SELECT_6)))
2448 return (0);
2449
2450 /*
2451 * Because there is no convenient place to stash the overall
2452 * cd_mode_params structure pointer, we have to grab it like this.
2453 * This means that ALL MODE_SENSE and MODE_SELECT requests in the
2454 * cd(4) driver MUST go through cdgetmode() and cdsetmode()!
2455 *
2456 * XXX It would be nice if, at some point, we could increase the
2457 * number of available peripheral private pointers. Both pointers
2458 * are currently used in most every peripheral driver.
2459 */
2460 found = 0;
2461
2462 STAILQ_FOREACH(params, &softc->mode_queue, links) {
2463 if (params->mode_buf == ccb->csio.data_ptr) {
2464 found = 1;
2465 break;
2466 }
2467 }
2468
2469 /*
2470 * This shouldn't happen. All mode sense and mode select
2471 * operations in the cd(4) driver MUST go through cdgetmode() and
2472 * cdsetmode()!
2473 */
2474 if (found == 0) {
2475 xpt_print(periph->path,
2476 "mode buffer not found in mode queue!\n");
2477 return (0);
2478 }
2479
2480 params->cdb_size = 10;
2481 softc->minimum_command_size = 10;
2482 xpt_print(ccb->ccb_h.path,
2483 "%s(6) failed, increasing minimum CDB size to 10 bytes\n",
2484 (cdb[0] == MODE_SENSE_6) ? "MODE_SENSE" : "MODE_SELECT");
2485
2486 if (cdb[0] == MODE_SENSE_6) {
2487 struct scsi_mode_sense_10 ms10;
2488 struct scsi_mode_sense_6 *ms6;
2489 int len;
2490
2491 ms6 = (struct scsi_mode_sense_6 *)cdb;
2492
2493 bzero(&ms10, sizeof(ms10));
2494 ms10.opcode = MODE_SENSE_10;
2495 ms10.byte2 = ms6->byte2;
2496 ms10.page = ms6->page;
2497
2498 /*
2499 * 10 byte mode header, block descriptor,
2500 * sizeof(union cd_pages)
2501 */
2502 len = sizeof(struct cd_mode_data_10);
2503 ccb->csio.dxfer_len = len;
2504
2505 scsi_ulto2b(len, ms10.length);
2506 ms10.control = ms6->control;
2507 bcopy(&ms10, cdb, 10);
2508 ccb->csio.cdb_len = 10;
2509 } else {
2510 struct scsi_mode_select_10 ms10;
2511 struct scsi_mode_select_6 *ms6;
2512 struct scsi_mode_header_6 *header6;
2513 struct scsi_mode_header_10 *header10;
2514 struct scsi_mode_page_header *page_header;
2515 int blk_desc_len, page_num, page_size, len;
2516
2517 ms6 = (struct scsi_mode_select_6 *)cdb;
2518
2519 bzero(&ms10, sizeof(ms10));
2520 ms10.opcode = MODE_SELECT_10;
2521 ms10.byte2 = ms6->byte2;
2522
2523 header6 = (struct scsi_mode_header_6 *)params->mode_buf;
2524 header10 = (struct scsi_mode_header_10 *)params->mode_buf;
2525
2526 page_header = find_mode_page_6(header6);
2527 page_num = page_header->page_code;
2528
2529 blk_desc_len = header6->blk_desc_len;
2530
2531 page_size = cdgetpagesize(page_num);
2532
2533 if (page_size != (page_header->page_length +
2534 sizeof(*page_header)))
2535 page_size = page_header->page_length +
2536 sizeof(*page_header);
2537
2538 len = sizeof(*header10) + blk_desc_len + page_size;
2539
2540 len = min(params->alloc_len, len);
2541
2542 /*
2543 * Since the 6 byte parameter header is shorter than the 10
2544 * byte parameter header, we need to copy the actual mode
2545 * page data, and the block descriptor, if any, so things wind
2546 * up in the right place. The regions will overlap, but
2547 * bcopy() does the right thing.
2548 */
2549 bcopy(params->mode_buf + sizeof(*header6),
2550 params->mode_buf + sizeof(*header10),
2551 len - sizeof(*header10));
2552
2553 /* Make sure these fields are set correctly. */
2554 scsi_ulto2b(0, header10->data_length);
2555 header10->medium_type = 0;
2556 scsi_ulto2b(blk_desc_len, header10->blk_desc_len);
2557
2558 ccb->csio.dxfer_len = len;
2559
2560 scsi_ulto2b(len, ms10.length);
2561 ms10.control = ms6->control;
2562 bcopy(&ms10, cdb, 10);
2563 ccb->csio.cdb_len = 10;
2564 }
2565
2566 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
2567 ccb->ccb_h.status = CAM_REQUEUE_REQ;
2568 xpt_action(ccb);
2569 if (frozen) {
2570 cam_release_devq(ccb->ccb_h.path,
2571 /*relsim_flags*/0,
2572 /*openings*/0,
2573 /*timeout*/0,
2574 /*getcount_only*/0);
2575 }
2576
2577 return (ERESTART);
2578 }
2579
2580 static int
cderror(union ccb * ccb,u_int32_t cam_flags,u_int32_t sense_flags)2581 cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
2582 {
2583 struct cd_softc *softc;
2584 struct cam_periph *periph;
2585 int error, error_code, sense_key, asc, ascq;
2586
2587 periph = xpt_path_periph(ccb->ccb_h.path);
2588 softc = (struct cd_softc *)periph->softc;
2589
2590 error = 0;
2591
2592 /*
2593 * We use a status of CAM_REQ_INVALID as shorthand -- if a 6 byte
2594 * CDB comes back with this particular error, try transforming it
2595 * into the 10 byte version.
2596 */
2597 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
2598 error = cd6byteworkaround(ccb);
2599 } else if (scsi_extract_sense_ccb(ccb,
2600 &error_code, &sense_key, &asc, &ascq)) {
2601 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
2602 error = cd6byteworkaround(ccb);
2603 else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
2604 asc == 0x28 && ascq == 0x00)
2605 disk_media_changed(softc->disk, M_NOWAIT);
2606 else if (sense_key == SSD_KEY_NOT_READY &&
2607 asc == 0x3a && (softc->flags & CD_FLAG_SAW_MEDIA)) {
2608 softc->flags &= ~CD_FLAG_SAW_MEDIA;
2609 disk_media_gone(softc->disk, M_NOWAIT);
2610 }
2611 }
2612
2613 if (error == ERESTART)
2614 return (error);
2615
2616 /*
2617 * XXX
2618 * Until we have a better way of doing pack validation,
2619 * don't treat UAs as errors.
2620 */
2621 sense_flags |= SF_RETRY_UA;
2622
2623 if (softc->quirks & CD_Q_RETRY_BUSY)
2624 sense_flags |= SF_RETRY_BUSY;
2625 return (cam_periph_error(ccb, cam_flags, sense_flags));
2626 }
2627
2628 static void
cdmediapoll(void * arg)2629 cdmediapoll(void *arg)
2630 {
2631 struct cam_periph *periph = arg;
2632 struct cd_softc *softc = periph->softc;
2633
2634 if (softc->state == CD_STATE_NORMAL && !softc->tur &&
2635 softc->outstanding_cmds == 0) {
2636 if (cam_periph_acquire(periph) == 0) {
2637 softc->tur = 1;
2638 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
2639 }
2640 }
2641 /* Queue us up again */
2642 if (cd_poll_period != 0)
2643 callout_schedule(&softc->mediapoll_c, cd_poll_period * hz);
2644 }
2645
2646 /*
2647 * Read table of contents
2648 */
2649 static int
cdreadtoc(struct cam_periph * periph,u_int32_t mode,u_int32_t start,u_int8_t * data,u_int32_t len,u_int32_t sense_flags)2650 cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start,
2651 u_int8_t *data, u_int32_t len, u_int32_t sense_flags)
2652 {
2653 struct scsi_read_toc *scsi_cmd;
2654 u_int32_t ntoc;
2655 struct ccb_scsiio *csio;
2656 union ccb *ccb;
2657 int error;
2658
2659 ntoc = len;
2660 error = 0;
2661
2662 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2663
2664 csio = &ccb->csio;
2665
2666 cam_fill_csio(csio,
2667 /* retries */ cd_retry_count,
2668 /* cbfcnp */ NULL,
2669 /* flags */ CAM_DIR_IN,
2670 /* tag_action */ MSG_SIMPLE_Q_TAG,
2671 /* data_ptr */ data,
2672 /* dxfer_len */ len,
2673 /* sense_len */ SSD_FULL_SIZE,
2674 sizeof(struct scsi_read_toc),
2675 /* timeout */ 50000);
2676
2677 scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes;
2678 bzero (scsi_cmd, sizeof(*scsi_cmd));
2679
2680 if (mode == CD_MSF_FORMAT)
2681 scsi_cmd->byte2 |= CD_MSF;
2682 scsi_cmd->from_track = start;
2683 /* scsi_ulto2b(ntoc, (u_int8_t *)scsi_cmd->data_len); */
2684 scsi_cmd->data_len[0] = (ntoc) >> 8;
2685 scsi_cmd->data_len[1] = (ntoc) & 0xff;
2686
2687 scsi_cmd->op_code = READ_TOC;
2688
2689 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
2690 /*sense_flags*/SF_RETRY_UA | sense_flags);
2691
2692 xpt_release_ccb(ccb);
2693
2694 return(error);
2695 }
2696
2697 static int
cdreadsubchannel(struct cam_periph * periph,u_int32_t mode,u_int32_t format,int track,struct cd_sub_channel_info * data,u_int32_t len)2698 cdreadsubchannel(struct cam_periph *periph, u_int32_t mode,
2699 u_int32_t format, int track,
2700 struct cd_sub_channel_info *data, u_int32_t len)
2701 {
2702 struct scsi_read_subchannel *scsi_cmd;
2703 struct ccb_scsiio *csio;
2704 union ccb *ccb;
2705 int error;
2706
2707 error = 0;
2708
2709 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2710
2711 csio = &ccb->csio;
2712
2713 cam_fill_csio(csio,
2714 /* retries */ cd_retry_count,
2715 /* cbfcnp */ NULL,
2716 /* flags */ CAM_DIR_IN,
2717 /* tag_action */ MSG_SIMPLE_Q_TAG,
2718 /* data_ptr */ (u_int8_t *)data,
2719 /* dxfer_len */ len,
2720 /* sense_len */ SSD_FULL_SIZE,
2721 sizeof(struct scsi_read_subchannel),
2722 /* timeout */ 50000);
2723
2724 scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes;
2725 bzero (scsi_cmd, sizeof(*scsi_cmd));
2726
2727 scsi_cmd->op_code = READ_SUBCHANNEL;
2728 if (mode == CD_MSF_FORMAT)
2729 scsi_cmd->byte1 |= CD_MSF;
2730 scsi_cmd->byte2 = SRS_SUBQ;
2731 scsi_cmd->subchan_format = format;
2732 scsi_cmd->track = track;
2733 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len);
2734 scsi_cmd->control = 0;
2735
2736 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
2737 /*sense_flags*/SF_RETRY_UA);
2738
2739 xpt_release_ccb(ccb);
2740
2741 return(error);
2742 }
2743
2744
2745 /*
2746 * All MODE_SENSE requests in the cd(4) driver MUST go through this
2747 * routine. See comments in cd6byteworkaround() for details.
2748 */
2749 static int
cdgetmode(struct cam_periph * periph,struct cd_mode_params * data,u_int32_t page)2750 cdgetmode(struct cam_periph *periph, struct cd_mode_params *data,
2751 u_int32_t page)
2752 {
2753 struct ccb_scsiio *csio;
2754 struct cd_softc *softc;
2755 union ccb *ccb;
2756 int param_len;
2757 int error;
2758
2759 softc = (struct cd_softc *)periph->softc;
2760
2761 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2762
2763 csio = &ccb->csio;
2764
2765 data->cdb_size = softc->minimum_command_size;
2766 if (data->cdb_size < 10)
2767 param_len = sizeof(struct cd_mode_data);
2768 else
2769 param_len = sizeof(struct cd_mode_data_10);
2770
2771 /* Don't say we've got more room than we actually allocated */
2772 param_len = min(param_len, data->alloc_len);
2773
2774 scsi_mode_sense_len(csio,
2775 /* retries */ cd_retry_count,
2776 /* cbfcnp */ NULL,
2777 /* tag_action */ MSG_SIMPLE_Q_TAG,
2778 /* dbd */ 0,
2779 /* page_code */ SMS_PAGE_CTRL_CURRENT,
2780 /* page */ page,
2781 /* param_buf */ data->mode_buf,
2782 /* param_len */ param_len,
2783 /* minimum_cmd_size */ softc->minimum_command_size,
2784 /* sense_len */ SSD_FULL_SIZE,
2785 /* timeout */ 50000);
2786
2787 /*
2788 * It would be nice not to have to do this, but there's no
2789 * available pointer in the CCB that would allow us to stuff the
2790 * mode params structure in there and retrieve it in
2791 * cd6byteworkaround(), so we can set the cdb size. The cdb size
2792 * lets the caller know what CDB size we ended up using, so they
2793 * can find the actual mode page offset.
2794 */
2795 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links);
2796
2797 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
2798 /*sense_flags*/SF_RETRY_UA);
2799
2800 xpt_release_ccb(ccb);
2801
2802 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links);
2803
2804 /*
2805 * This is a bit of belt-and-suspenders checking, but if we run
2806 * into a situation where the target sends back multiple block
2807 * descriptors, we might not have enough space in the buffer to
2808 * see the whole mode page. Better to return an error than
2809 * potentially access memory beyond our malloced region.
2810 */
2811 if (error == 0) {
2812 u_int32_t data_len;
2813
2814 if (data->cdb_size == 10) {
2815 struct scsi_mode_header_10 *hdr10;
2816
2817 hdr10 = (struct scsi_mode_header_10 *)data->mode_buf;
2818 data_len = scsi_2btoul(hdr10->data_length);
2819 data_len += sizeof(hdr10->data_length);
2820 } else {
2821 struct scsi_mode_header_6 *hdr6;
2822
2823 hdr6 = (struct scsi_mode_header_6 *)data->mode_buf;
2824 data_len = hdr6->data_length;
2825 data_len += sizeof(hdr6->data_length);
2826 }
2827
2828 /*
2829 * Complain if there is more mode data available than we
2830 * allocated space for. This could potentially happen if
2831 * we miscalculated the page length for some reason, if the
2832 * drive returns multiple block descriptors, or if it sets
2833 * the data length incorrectly.
2834 */
2835 if (data_len > data->alloc_len) {
2836 xpt_print(periph->path, "allocated modepage %d length "
2837 "%d < returned length %d\n", page, data->alloc_len,
2838 data_len);
2839 error = ENOSPC;
2840 }
2841 }
2842 return (error);
2843 }
2844
2845 /*
2846 * All MODE_SELECT requests in the cd(4) driver MUST go through this
2847 * routine. See comments in cd6byteworkaround() for details.
2848 */
2849 static int
cdsetmode(struct cam_periph * periph,struct cd_mode_params * data)2850 cdsetmode(struct cam_periph *periph, struct cd_mode_params *data)
2851 {
2852 struct ccb_scsiio *csio;
2853 struct cd_softc *softc;
2854 union ccb *ccb;
2855 int cdb_size, param_len;
2856 int error;
2857
2858 softc = (struct cd_softc *)periph->softc;
2859
2860 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2861
2862 csio = &ccb->csio;
2863
2864 error = 0;
2865
2866 /*
2867 * If the data is formatted for the 10 byte version of the mode
2868 * select parameter list, we need to use the 10 byte CDB.
2869 * Otherwise, we use whatever the stored minimum command size.
2870 */
2871 if (data->cdb_size == 10)
2872 cdb_size = data->cdb_size;
2873 else
2874 cdb_size = softc->minimum_command_size;
2875
2876 if (cdb_size >= 10) {
2877 struct scsi_mode_header_10 *mode_header;
2878 u_int32_t data_len;
2879
2880 mode_header = (struct scsi_mode_header_10 *)data->mode_buf;
2881
2882 data_len = scsi_2btoul(mode_header->data_length);
2883
2884 scsi_ulto2b(0, mode_header->data_length);
2885 /*
2886 * SONY drives do not allow a mode select with a medium_type
2887 * value that has just been returned by a mode sense; use a
2888 * medium_type of 0 (Default) instead.
2889 */
2890 mode_header->medium_type = 0;
2891
2892 /*
2893 * Pass back whatever the drive passed to us, plus the size
2894 * of the data length field.
2895 */
2896 param_len = data_len + sizeof(mode_header->data_length);
2897
2898 } else {
2899 struct scsi_mode_header_6 *mode_header;
2900
2901 mode_header = (struct scsi_mode_header_6 *)data->mode_buf;
2902
2903 param_len = mode_header->data_length + 1;
2904
2905 mode_header->data_length = 0;
2906 /*
2907 * SONY drives do not allow a mode select with a medium_type
2908 * value that has just been returned by a mode sense; use a
2909 * medium_type of 0 (Default) instead.
2910 */
2911 mode_header->medium_type = 0;
2912 }
2913
2914 /* Don't say we've got more room than we actually allocated */
2915 param_len = min(param_len, data->alloc_len);
2916
2917 scsi_mode_select_len(csio,
2918 /* retries */ cd_retry_count,
2919 /* cbfcnp */ NULL,
2920 /* tag_action */ MSG_SIMPLE_Q_TAG,
2921 /* scsi_page_fmt */ 1,
2922 /* save_pages */ 0,
2923 /* param_buf */ data->mode_buf,
2924 /* param_len */ param_len,
2925 /* minimum_cmd_size */ cdb_size,
2926 /* sense_len */ SSD_FULL_SIZE,
2927 /* timeout */ 50000);
2928
2929 /* See comments in cdgetmode() and cd6byteworkaround(). */
2930 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links);
2931
2932 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
2933 /*sense_flags*/SF_RETRY_UA);
2934
2935 xpt_release_ccb(ccb);
2936
2937 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links);
2938
2939 return (error);
2940 }
2941
2942
2943 static int
cdplay(struct cam_periph * periph,u_int32_t blk,u_int32_t len)2944 cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len)
2945 {
2946 struct ccb_scsiio *csio;
2947 union ccb *ccb;
2948 int error;
2949 u_int8_t cdb_len;
2950
2951 error = 0;
2952 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2953 csio = &ccb->csio;
2954 /*
2955 * Use the smallest possible command to perform the operation.
2956 */
2957 if ((len & 0xffff0000) == 0) {
2958 /*
2959 * We can fit in a 10 byte cdb.
2960 */
2961 struct scsi_play_10 *scsi_cmd;
2962
2963 scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes;
2964 bzero (scsi_cmd, sizeof(*scsi_cmd));
2965 scsi_cmd->op_code = PLAY_10;
2966 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr);
2967 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len);
2968 cdb_len = sizeof(*scsi_cmd);
2969 } else {
2970 struct scsi_play_12 *scsi_cmd;
2971
2972 scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes;
2973 bzero (scsi_cmd, sizeof(*scsi_cmd));
2974 scsi_cmd->op_code = PLAY_12;
2975 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr);
2976 scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len);
2977 cdb_len = sizeof(*scsi_cmd);
2978 }
2979 cam_fill_csio(csio,
2980 /*retries*/ cd_retry_count,
2981 /*cbfcnp*/NULL,
2982 /*flags*/CAM_DIR_NONE,
2983 MSG_SIMPLE_Q_TAG,
2984 /*dataptr*/NULL,
2985 /*datalen*/0,
2986 /*sense_len*/SSD_FULL_SIZE,
2987 cdb_len,
2988 /*timeout*/50 * 1000);
2989
2990 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
2991 /*sense_flags*/SF_RETRY_UA);
2992
2993 xpt_release_ccb(ccb);
2994
2995 return(error);
2996 }
2997
2998 static int
cdplaymsf(struct cam_periph * periph,u_int32_t startm,u_int32_t starts,u_int32_t startf,u_int32_t endm,u_int32_t ends,u_int32_t endf)2999 cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts,
3000 u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf)
3001 {
3002 struct scsi_play_msf *scsi_cmd;
3003 struct ccb_scsiio *csio;
3004 union ccb *ccb;
3005 int error;
3006
3007 error = 0;
3008
3009 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3010
3011 csio = &ccb->csio;
3012
3013 cam_fill_csio(csio,
3014 /* retries */ cd_retry_count,
3015 /* cbfcnp */ NULL,
3016 /* flags */ CAM_DIR_NONE,
3017 /* tag_action */ MSG_SIMPLE_Q_TAG,
3018 /* data_ptr */ NULL,
3019 /* dxfer_len */ 0,
3020 /* sense_len */ SSD_FULL_SIZE,
3021 sizeof(struct scsi_play_msf),
3022 /* timeout */ 50000);
3023
3024 scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes;
3025 bzero (scsi_cmd, sizeof(*scsi_cmd));
3026
3027 scsi_cmd->op_code = PLAY_MSF;
3028 scsi_cmd->start_m = startm;
3029 scsi_cmd->start_s = starts;
3030 scsi_cmd->start_f = startf;
3031 scsi_cmd->end_m = endm;
3032 scsi_cmd->end_s = ends;
3033 scsi_cmd->end_f = endf;
3034
3035 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3036 /*sense_flags*/SF_RETRY_UA);
3037
3038 xpt_release_ccb(ccb);
3039
3040 return(error);
3041 }
3042
3043
3044 static int
cdplaytracks(struct cam_periph * periph,u_int32_t strack,u_int32_t sindex,u_int32_t etrack,u_int32_t eindex)3045 cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex,
3046 u_int32_t etrack, u_int32_t eindex)
3047 {
3048 struct scsi_play_track *scsi_cmd;
3049 struct ccb_scsiio *csio;
3050 union ccb *ccb;
3051 int error;
3052
3053 error = 0;
3054
3055 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3056
3057 csio = &ccb->csio;
3058
3059 cam_fill_csio(csio,
3060 /* retries */ cd_retry_count,
3061 /* cbfcnp */ NULL,
3062 /* flags */ CAM_DIR_NONE,
3063 /* tag_action */ MSG_SIMPLE_Q_TAG,
3064 /* data_ptr */ NULL,
3065 /* dxfer_len */ 0,
3066 /* sense_len */ SSD_FULL_SIZE,
3067 sizeof(struct scsi_play_track),
3068 /* timeout */ 50000);
3069
3070 scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes;
3071 bzero (scsi_cmd, sizeof(*scsi_cmd));
3072
3073 scsi_cmd->op_code = PLAY_TRACK;
3074 scsi_cmd->start_track = strack;
3075 scsi_cmd->start_index = sindex;
3076 scsi_cmd->end_track = etrack;
3077 scsi_cmd->end_index = eindex;
3078
3079 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3080 /*sense_flags*/SF_RETRY_UA);
3081
3082 xpt_release_ccb(ccb);
3083
3084 return(error);
3085 }
3086
3087 static int
cdpause(struct cam_periph * periph,u_int32_t go)3088 cdpause(struct cam_periph *periph, u_int32_t go)
3089 {
3090 struct scsi_pause *scsi_cmd;
3091 struct ccb_scsiio *csio;
3092 union ccb *ccb;
3093 int error;
3094
3095 error = 0;
3096
3097 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3098
3099 csio = &ccb->csio;
3100
3101 cam_fill_csio(csio,
3102 /* retries */ cd_retry_count,
3103 /* cbfcnp */ NULL,
3104 /* flags */ CAM_DIR_NONE,
3105 /* tag_action */ MSG_SIMPLE_Q_TAG,
3106 /* data_ptr */ NULL,
3107 /* dxfer_len */ 0,
3108 /* sense_len */ SSD_FULL_SIZE,
3109 sizeof(struct scsi_pause),
3110 /* timeout */ 50000);
3111
3112 scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes;
3113 bzero (scsi_cmd, sizeof(*scsi_cmd));
3114
3115 scsi_cmd->op_code = PAUSE;
3116 scsi_cmd->resume = go;
3117
3118 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3119 /*sense_flags*/SF_RETRY_UA);
3120
3121 xpt_release_ccb(ccb);
3122
3123 return(error);
3124 }
3125
3126 static int
cdstartunit(struct cam_periph * periph,int load)3127 cdstartunit(struct cam_periph *periph, int load)
3128 {
3129 union ccb *ccb;
3130 int error;
3131
3132 error = 0;
3133
3134 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3135
3136 scsi_start_stop(&ccb->csio,
3137 /* retries */ cd_retry_count,
3138 /* cbfcnp */ NULL,
3139 /* tag_action */ MSG_SIMPLE_Q_TAG,
3140 /* start */ TRUE,
3141 /* load_eject */ load,
3142 /* immediate */ FALSE,
3143 /* sense_len */ SSD_FULL_SIZE,
3144 /* timeout */ 50000);
3145
3146 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3147 /*sense_flags*/SF_RETRY_UA);
3148
3149 xpt_release_ccb(ccb);
3150
3151 return(error);
3152 }
3153
3154 static int
cdstopunit(struct cam_periph * periph,u_int32_t eject)3155 cdstopunit(struct cam_periph *periph, u_int32_t eject)
3156 {
3157 union ccb *ccb;
3158 int error;
3159
3160 error = 0;
3161
3162 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3163
3164 scsi_start_stop(&ccb->csio,
3165 /* retries */ cd_retry_count,
3166 /* cbfcnp */ NULL,
3167 /* tag_action */ MSG_SIMPLE_Q_TAG,
3168 /* start */ FALSE,
3169 /* load_eject */ eject,
3170 /* immediate */ FALSE,
3171 /* sense_len */ SSD_FULL_SIZE,
3172 /* timeout */ 50000);
3173
3174 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3175 /*sense_flags*/SF_RETRY_UA);
3176
3177 xpt_release_ccb(ccb);
3178
3179 return(error);
3180 }
3181
3182 static int
cdsetspeed(struct cam_periph * periph,u_int32_t rdspeed,u_int32_t wrspeed)3183 cdsetspeed(struct cam_periph *periph, u_int32_t rdspeed, u_int32_t wrspeed)
3184 {
3185 struct scsi_set_speed *scsi_cmd;
3186 struct ccb_scsiio *csio;
3187 union ccb *ccb;
3188 int error;
3189
3190 error = 0;
3191 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3192 csio = &ccb->csio;
3193
3194 /* Preserve old behavior: units in multiples of CDROM speed */
3195 if (rdspeed < 177)
3196 rdspeed *= 177;
3197 if (wrspeed < 177)
3198 wrspeed *= 177;
3199
3200 cam_fill_csio(csio,
3201 /* retries */ cd_retry_count,
3202 /* cbfcnp */ NULL,
3203 /* flags */ CAM_DIR_NONE,
3204 /* tag_action */ MSG_SIMPLE_Q_TAG,
3205 /* data_ptr */ NULL,
3206 /* dxfer_len */ 0,
3207 /* sense_len */ SSD_FULL_SIZE,
3208 sizeof(struct scsi_set_speed),
3209 /* timeout */ 50000);
3210
3211 scsi_cmd = (struct scsi_set_speed *)&csio->cdb_io.cdb_bytes;
3212 bzero(scsi_cmd, sizeof(*scsi_cmd));
3213
3214 scsi_cmd->opcode = SET_CD_SPEED;
3215 scsi_ulto2b(rdspeed, scsi_cmd->readspeed);
3216 scsi_ulto2b(wrspeed, scsi_cmd->writespeed);
3217
3218 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3219 /*sense_flags*/SF_RETRY_UA);
3220
3221 xpt_release_ccb(ccb);
3222
3223 return(error);
3224 }
3225
3226 static int
cdreportkey(struct cam_periph * periph,struct dvd_authinfo * authinfo)3227 cdreportkey(struct cam_periph *periph, struct dvd_authinfo *authinfo)
3228 {
3229 union ccb *ccb;
3230 u_int8_t *databuf;
3231 u_int32_t lba;
3232 int error;
3233 int length;
3234
3235 error = 0;
3236 databuf = NULL;
3237 lba = 0;
3238
3239 switch (authinfo->format) {
3240 case DVD_REPORT_AGID:
3241 length = sizeof(struct scsi_report_key_data_agid);
3242 break;
3243 case DVD_REPORT_CHALLENGE:
3244 length = sizeof(struct scsi_report_key_data_challenge);
3245 break;
3246 case DVD_REPORT_KEY1:
3247 length = sizeof(struct scsi_report_key_data_key1_key2);
3248 break;
3249 case DVD_REPORT_TITLE_KEY:
3250 length = sizeof(struct scsi_report_key_data_title);
3251 /* The lba field is only set for the title key */
3252 lba = authinfo->lba;
3253 break;
3254 case DVD_REPORT_ASF:
3255 length = sizeof(struct scsi_report_key_data_asf);
3256 break;
3257 case DVD_REPORT_RPC:
3258 length = sizeof(struct scsi_report_key_data_rpc);
3259 break;
3260 case DVD_INVALIDATE_AGID:
3261 length = 0;
3262 break;
3263 default:
3264 return (EINVAL);
3265 }
3266
3267 if (length != 0) {
3268 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3269 } else
3270 databuf = NULL;
3271
3272 cam_periph_lock(periph);
3273 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3274
3275 scsi_report_key(&ccb->csio,
3276 /* retries */ cd_retry_count,
3277 /* cbfcnp */ NULL,
3278 /* tag_action */ MSG_SIMPLE_Q_TAG,
3279 /* lba */ lba,
3280 /* agid */ authinfo->agid,
3281 /* key_format */ authinfo->format,
3282 /* data_ptr */ databuf,
3283 /* dxfer_len */ length,
3284 /* sense_len */ SSD_FULL_SIZE,
3285 /* timeout */ 50000);
3286
3287 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3288 /*sense_flags*/SF_RETRY_UA);
3289
3290 if (error != 0)
3291 goto bailout;
3292
3293 if (ccb->csio.resid != 0) {
3294 xpt_print(periph->path, "warning, residual for report key "
3295 "command is %d\n", ccb->csio.resid);
3296 }
3297
3298 switch(authinfo->format) {
3299 case DVD_REPORT_AGID: {
3300 struct scsi_report_key_data_agid *agid_data;
3301
3302 agid_data = (struct scsi_report_key_data_agid *)databuf;
3303
3304 authinfo->agid = (agid_data->agid & RKD_AGID_MASK) >>
3305 RKD_AGID_SHIFT;
3306 break;
3307 }
3308 case DVD_REPORT_CHALLENGE: {
3309 struct scsi_report_key_data_challenge *chal_data;
3310
3311 chal_data = (struct scsi_report_key_data_challenge *)databuf;
3312
3313 bcopy(chal_data->challenge_key, authinfo->keychal,
3314 min(sizeof(chal_data->challenge_key),
3315 sizeof(authinfo->keychal)));
3316 break;
3317 }
3318 case DVD_REPORT_KEY1: {
3319 struct scsi_report_key_data_key1_key2 *key1_data;
3320
3321 key1_data = (struct scsi_report_key_data_key1_key2 *)databuf;
3322
3323 bcopy(key1_data->key1, authinfo->keychal,
3324 min(sizeof(key1_data->key1), sizeof(authinfo->keychal)));
3325 break;
3326 }
3327 case DVD_REPORT_TITLE_KEY: {
3328 struct scsi_report_key_data_title *title_data;
3329
3330 title_data = (struct scsi_report_key_data_title *)databuf;
3331
3332 authinfo->cpm = (title_data->byte0 & RKD_TITLE_CPM) >>
3333 RKD_TITLE_CPM_SHIFT;
3334 authinfo->cp_sec = (title_data->byte0 & RKD_TITLE_CP_SEC) >>
3335 RKD_TITLE_CP_SEC_SHIFT;
3336 authinfo->cgms = (title_data->byte0 & RKD_TITLE_CMGS_MASK) >>
3337 RKD_TITLE_CMGS_SHIFT;
3338 bcopy(title_data->title_key, authinfo->keychal,
3339 min(sizeof(title_data->title_key),
3340 sizeof(authinfo->keychal)));
3341 break;
3342 }
3343 case DVD_REPORT_ASF: {
3344 struct scsi_report_key_data_asf *asf_data;
3345
3346 asf_data = (struct scsi_report_key_data_asf *)databuf;
3347
3348 authinfo->asf = asf_data->success & RKD_ASF_SUCCESS;
3349 break;
3350 }
3351 case DVD_REPORT_RPC: {
3352 struct scsi_report_key_data_rpc *rpc_data;
3353
3354 rpc_data = (struct scsi_report_key_data_rpc *)databuf;
3355
3356 authinfo->reg_type = (rpc_data->byte4 & RKD_RPC_TYPE_MASK) >>
3357 RKD_RPC_TYPE_SHIFT;
3358 authinfo->vend_rsts =
3359 (rpc_data->byte4 & RKD_RPC_VENDOR_RESET_MASK) >>
3360 RKD_RPC_VENDOR_RESET_SHIFT;
3361 authinfo->user_rsts = rpc_data->byte4 & RKD_RPC_USER_RESET_MASK;
3362 authinfo->region = rpc_data->region_mask;
3363 authinfo->rpc_scheme = rpc_data->rpc_scheme1;
3364 break;
3365 }
3366 case DVD_INVALIDATE_AGID:
3367 break;
3368 default:
3369 /* This should be impossible, since we checked above */
3370 error = EINVAL;
3371 goto bailout;
3372 break; /* NOTREACHED */
3373 }
3374
3375 bailout:
3376 xpt_release_ccb(ccb);
3377 cam_periph_unlock(periph);
3378
3379 if (databuf != NULL)
3380 free(databuf, M_DEVBUF);
3381
3382 return(error);
3383 }
3384
3385 static int
cdsendkey(struct cam_periph * periph,struct dvd_authinfo * authinfo)3386 cdsendkey(struct cam_periph *periph, struct dvd_authinfo *authinfo)
3387 {
3388 union ccb *ccb;
3389 u_int8_t *databuf;
3390 int length;
3391 int error;
3392
3393 error = 0;
3394 databuf = NULL;
3395
3396 switch(authinfo->format) {
3397 case DVD_SEND_CHALLENGE: {
3398 struct scsi_report_key_data_challenge *challenge_data;
3399
3400 length = sizeof(*challenge_data);
3401
3402 challenge_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3403
3404 databuf = (u_int8_t *)challenge_data;
3405
3406 scsi_ulto2b(length - sizeof(challenge_data->data_len),
3407 challenge_data->data_len);
3408
3409 bcopy(authinfo->keychal, challenge_data->challenge_key,
3410 min(sizeof(authinfo->keychal),
3411 sizeof(challenge_data->challenge_key)));
3412 break;
3413 }
3414 case DVD_SEND_KEY2: {
3415 struct scsi_report_key_data_key1_key2 *key2_data;
3416
3417 length = sizeof(*key2_data);
3418
3419 key2_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3420
3421 databuf = (u_int8_t *)key2_data;
3422
3423 scsi_ulto2b(length - sizeof(key2_data->data_len),
3424 key2_data->data_len);
3425
3426 bcopy(authinfo->keychal, key2_data->key1,
3427 min(sizeof(authinfo->keychal), sizeof(key2_data->key1)));
3428
3429 break;
3430 }
3431 case DVD_SEND_RPC: {
3432 struct scsi_send_key_data_rpc *rpc_data;
3433
3434 length = sizeof(*rpc_data);
3435
3436 rpc_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3437
3438 databuf = (u_int8_t *)rpc_data;
3439
3440 scsi_ulto2b(length - sizeof(rpc_data->data_len),
3441 rpc_data->data_len);
3442
3443 rpc_data->region_code = authinfo->region;
3444 break;
3445 }
3446 default:
3447 return (EINVAL);
3448 }
3449
3450 cam_periph_lock(periph);
3451 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3452
3453 scsi_send_key(&ccb->csio,
3454 /* retries */ cd_retry_count,
3455 /* cbfcnp */ NULL,
3456 /* tag_action */ MSG_SIMPLE_Q_TAG,
3457 /* agid */ authinfo->agid,
3458 /* key_format */ authinfo->format,
3459 /* data_ptr */ databuf,
3460 /* dxfer_len */ length,
3461 /* sense_len */ SSD_FULL_SIZE,
3462 /* timeout */ 50000);
3463
3464 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3465 /*sense_flags*/SF_RETRY_UA);
3466
3467 xpt_release_ccb(ccb);
3468 cam_periph_unlock(periph);
3469
3470 if (databuf != NULL)
3471 free(databuf, M_DEVBUF);
3472
3473 return(error);
3474 }
3475
3476 static int
cdreaddvdstructure(struct cam_periph * periph,struct dvd_struct * dvdstruct)3477 cdreaddvdstructure(struct cam_periph *periph, struct dvd_struct *dvdstruct)
3478 {
3479 union ccb *ccb;
3480 u_int8_t *databuf;
3481 u_int32_t address;
3482 int error;
3483 int length;
3484
3485 error = 0;
3486 databuf = NULL;
3487 /* The address is reserved for many of the formats */
3488 address = 0;
3489
3490 switch(dvdstruct->format) {
3491 case DVD_STRUCT_PHYSICAL:
3492 length = sizeof(struct scsi_read_dvd_struct_data_physical);
3493 break;
3494 case DVD_STRUCT_COPYRIGHT:
3495 length = sizeof(struct scsi_read_dvd_struct_data_copyright);
3496 break;
3497 case DVD_STRUCT_DISCKEY:
3498 length = sizeof(struct scsi_read_dvd_struct_data_disc_key);
3499 break;
3500 case DVD_STRUCT_BCA:
3501 length = sizeof(struct scsi_read_dvd_struct_data_bca);
3502 break;
3503 case DVD_STRUCT_MANUFACT:
3504 length = sizeof(struct scsi_read_dvd_struct_data_manufacturer);
3505 break;
3506 case DVD_STRUCT_CMI:
3507 return (ENODEV);
3508 case DVD_STRUCT_PROTDISCID:
3509 length = sizeof(struct scsi_read_dvd_struct_data_prot_discid);
3510 break;
3511 case DVD_STRUCT_DISCKEYBLOCK:
3512 length = sizeof(struct scsi_read_dvd_struct_data_disc_key_blk);
3513 break;
3514 case DVD_STRUCT_DDS:
3515 length = sizeof(struct scsi_read_dvd_struct_data_dds);
3516 break;
3517 case DVD_STRUCT_MEDIUM_STAT:
3518 length = sizeof(struct scsi_read_dvd_struct_data_medium_status);
3519 break;
3520 case DVD_STRUCT_SPARE_AREA:
3521 length = sizeof(struct scsi_read_dvd_struct_data_spare_area);
3522 break;
3523 case DVD_STRUCT_RMD_LAST:
3524 return (ENODEV);
3525 case DVD_STRUCT_RMD_RMA:
3526 return (ENODEV);
3527 case DVD_STRUCT_PRERECORDED:
3528 length = sizeof(struct scsi_read_dvd_struct_data_leadin);
3529 break;
3530 case DVD_STRUCT_UNIQUEID:
3531 length = sizeof(struct scsi_read_dvd_struct_data_disc_id);
3532 break;
3533 case DVD_STRUCT_DCB:
3534 return (ENODEV);
3535 case DVD_STRUCT_LIST:
3536 /*
3537 * This is the maximum allocation length for the READ DVD
3538 * STRUCTURE command. There's nothing in the MMC3 spec
3539 * that indicates a limit in the amount of data that can
3540 * be returned from this call, other than the limits
3541 * imposed by the 2-byte length variables.
3542 */
3543 length = 65535;
3544 break;
3545 default:
3546 return (EINVAL);
3547 }
3548
3549 if (length != 0) {
3550 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3551 } else
3552 databuf = NULL;
3553
3554 cam_periph_lock(periph);
3555 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3556
3557 scsi_read_dvd_structure(&ccb->csio,
3558 /* retries */ cd_retry_count,
3559 /* cbfcnp */ NULL,
3560 /* tag_action */ MSG_SIMPLE_Q_TAG,
3561 /* lba */ address,
3562 /* layer_number */ dvdstruct->layer_num,
3563 /* key_format */ dvdstruct->format,
3564 /* agid */ dvdstruct->agid,
3565 /* data_ptr */ databuf,
3566 /* dxfer_len */ length,
3567 /* sense_len */ SSD_FULL_SIZE,
3568 /* timeout */ 50000);
3569
3570 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3571 /*sense_flags*/SF_RETRY_UA);
3572
3573 if (error != 0)
3574 goto bailout;
3575
3576 switch(dvdstruct->format) {
3577 case DVD_STRUCT_PHYSICAL: {
3578 struct scsi_read_dvd_struct_data_layer_desc *inlayer;
3579 struct dvd_layer *outlayer;
3580 struct scsi_read_dvd_struct_data_physical *phys_data;
3581
3582 phys_data =
3583 (struct scsi_read_dvd_struct_data_physical *)databuf;
3584 inlayer = &phys_data->layer_desc;
3585 outlayer = (struct dvd_layer *)&dvdstruct->data;
3586
3587 dvdstruct->length = sizeof(*inlayer);
3588
3589 outlayer->book_type = (inlayer->book_type_version &
3590 RDSD_BOOK_TYPE_MASK) >> RDSD_BOOK_TYPE_SHIFT;
3591 outlayer->book_version = (inlayer->book_type_version &
3592 RDSD_BOOK_VERSION_MASK);
3593 outlayer->disc_size = (inlayer->disc_size_max_rate &
3594 RDSD_DISC_SIZE_MASK) >> RDSD_DISC_SIZE_SHIFT;
3595 outlayer->max_rate = (inlayer->disc_size_max_rate &
3596 RDSD_MAX_RATE_MASK);
3597 outlayer->nlayers = (inlayer->layer_info &
3598 RDSD_NUM_LAYERS_MASK) >> RDSD_NUM_LAYERS_SHIFT;
3599 outlayer->track_path = (inlayer->layer_info &
3600 RDSD_TRACK_PATH_MASK) >> RDSD_TRACK_PATH_SHIFT;
3601 outlayer->layer_type = (inlayer->layer_info &
3602 RDSD_LAYER_TYPE_MASK);
3603 outlayer->linear_density = (inlayer->density &
3604 RDSD_LIN_DENSITY_MASK) >> RDSD_LIN_DENSITY_SHIFT;
3605 outlayer->track_density = (inlayer->density &
3606 RDSD_TRACK_DENSITY_MASK);
3607 outlayer->bca = (inlayer->bca & RDSD_BCA_MASK) >>
3608 RDSD_BCA_SHIFT;
3609 outlayer->start_sector = scsi_3btoul(inlayer->main_data_start);
3610 outlayer->end_sector = scsi_3btoul(inlayer->main_data_end);
3611 outlayer->end_sector_l0 =
3612 scsi_3btoul(inlayer->end_sector_layer0);
3613 break;
3614 }
3615 case DVD_STRUCT_COPYRIGHT: {
3616 struct scsi_read_dvd_struct_data_copyright *copy_data;
3617
3618 copy_data = (struct scsi_read_dvd_struct_data_copyright *)
3619 databuf;
3620
3621 dvdstruct->cpst = copy_data->cps_type;
3622 dvdstruct->rmi = copy_data->region_info;
3623 dvdstruct->length = 0;
3624
3625 break;
3626 }
3627 default:
3628 /*
3629 * Tell the user what the overall length is, no matter
3630 * what we can actually fit in the data buffer.
3631 */
3632 dvdstruct->length = length - ccb->csio.resid -
3633 sizeof(struct scsi_read_dvd_struct_data_header);
3634
3635 /*
3636 * But only actually copy out the smaller of what we read
3637 * in or what the structure can take.
3638 */
3639 bcopy(databuf + sizeof(struct scsi_read_dvd_struct_data_header),
3640 dvdstruct->data,
3641 min(sizeof(dvdstruct->data), dvdstruct->length));
3642 break;
3643 }
3644
3645 bailout:
3646 xpt_release_ccb(ccb);
3647 cam_periph_unlock(periph);
3648
3649 if (databuf != NULL)
3650 free(databuf, M_DEVBUF);
3651
3652 return(error);
3653 }
3654
3655 void
scsi_report_key(struct ccb_scsiio * csio,u_int32_t retries,void (* cbfcnp)(struct cam_periph *,union ccb *),u_int8_t tag_action,u_int32_t lba,u_int8_t agid,u_int8_t key_format,u_int8_t * data_ptr,u_int32_t dxfer_len,u_int8_t sense_len,u_int32_t timeout)3656 scsi_report_key(struct ccb_scsiio *csio, u_int32_t retries,
3657 void (*cbfcnp)(struct cam_periph *, union ccb *),
3658 u_int8_t tag_action, u_int32_t lba, u_int8_t agid,
3659 u_int8_t key_format, u_int8_t *data_ptr, u_int32_t dxfer_len,
3660 u_int8_t sense_len, u_int32_t timeout)
3661 {
3662 struct scsi_report_key *scsi_cmd;
3663
3664 scsi_cmd = (struct scsi_report_key *)&csio->cdb_io.cdb_bytes;
3665 bzero(scsi_cmd, sizeof(*scsi_cmd));
3666 scsi_cmd->opcode = REPORT_KEY;
3667 scsi_ulto4b(lba, scsi_cmd->lba);
3668 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len);
3669 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) |
3670 (key_format & RK_KF_KEYFORMAT_MASK);
3671
3672 cam_fill_csio(csio,
3673 retries,
3674 cbfcnp,
3675 /*flags*/ (dxfer_len == 0) ? CAM_DIR_NONE : CAM_DIR_IN,
3676 tag_action,
3677 /*data_ptr*/ data_ptr,
3678 /*dxfer_len*/ dxfer_len,
3679 sense_len,
3680 sizeof(*scsi_cmd),
3681 timeout);
3682 }
3683
3684 void
scsi_send_key(struct ccb_scsiio * csio,u_int32_t retries,void (* cbfcnp)(struct cam_periph *,union ccb *),u_int8_t tag_action,u_int8_t agid,u_int8_t key_format,u_int8_t * data_ptr,u_int32_t dxfer_len,u_int8_t sense_len,u_int32_t timeout)3685 scsi_send_key(struct ccb_scsiio *csio, u_int32_t retries,
3686 void (*cbfcnp)(struct cam_periph *, union ccb *),
3687 u_int8_t tag_action, u_int8_t agid, u_int8_t key_format,
3688 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
3689 u_int32_t timeout)
3690 {
3691 struct scsi_send_key *scsi_cmd;
3692
3693 scsi_cmd = (struct scsi_send_key *)&csio->cdb_io.cdb_bytes;
3694 bzero(scsi_cmd, sizeof(*scsi_cmd));
3695 scsi_cmd->opcode = SEND_KEY;
3696
3697 scsi_ulto2b(dxfer_len, scsi_cmd->param_len);
3698 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) |
3699 (key_format & RK_KF_KEYFORMAT_MASK);
3700
3701 cam_fill_csio(csio,
3702 retries,
3703 cbfcnp,
3704 /*flags*/ CAM_DIR_OUT,
3705 tag_action,
3706 /*data_ptr*/ data_ptr,
3707 /*dxfer_len*/ dxfer_len,
3708 sense_len,
3709 sizeof(*scsi_cmd),
3710 timeout);
3711 }
3712
3713
3714 void
scsi_read_dvd_structure(struct ccb_scsiio * csio,u_int32_t retries,void (* cbfcnp)(struct cam_periph *,union ccb *),u_int8_t tag_action,u_int32_t address,u_int8_t layer_number,u_int8_t format,u_int8_t agid,u_int8_t * data_ptr,u_int32_t dxfer_len,u_int8_t sense_len,u_int32_t timeout)3715 scsi_read_dvd_structure(struct ccb_scsiio *csio, u_int32_t retries,
3716 void (*cbfcnp)(struct cam_periph *, union ccb *),
3717 u_int8_t tag_action, u_int32_t address,
3718 u_int8_t layer_number, u_int8_t format, u_int8_t agid,
3719 u_int8_t *data_ptr, u_int32_t dxfer_len,
3720 u_int8_t sense_len, u_int32_t timeout)
3721 {
3722 struct scsi_read_dvd_structure *scsi_cmd;
3723
3724 scsi_cmd = (struct scsi_read_dvd_structure *)&csio->cdb_io.cdb_bytes;
3725 bzero(scsi_cmd, sizeof(*scsi_cmd));
3726 scsi_cmd->opcode = READ_DVD_STRUCTURE;
3727
3728 scsi_ulto4b(address, scsi_cmd->address);
3729 scsi_cmd->layer_number = layer_number;
3730 scsi_cmd->format = format;
3731 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len);
3732 /* The AGID is the top two bits of this byte */
3733 scsi_cmd->agid = agid << 6;
3734
3735 cam_fill_csio(csio,
3736 retries,
3737 cbfcnp,
3738 /*flags*/ CAM_DIR_IN,
3739 tag_action,
3740 /*data_ptr*/ data_ptr,
3741 /*dxfer_len*/ dxfer_len,
3742 sense_len,
3743 sizeof(*scsi_cmd),
3744 timeout);
3745 }
3746