FreeBSD/Linux Kernel Cross Reference
sys/cam/scsi/scsi_cd.c
1 /*-
2 * Copyright (c) 1997 Justin T. Gibbs.
3 * Copyright (c) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Kenneth D. Merry.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions, and the following disclaimer,
11 * without modification, immediately at the beginning of the file.
12 * 2. The name of the author may not be used to endorse or promote products
13 * derived from this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 /*-
29 * Portions of this driver taken from the original FreeBSD cd driver.
30 * Written by Julian Elischer (julian@tfs.com)
31 * for TRW Financial Systems for use under the MACH(2.5) operating system.
32 *
33 * TRW Financial Systems, in accordance with their agreement with Carnegie
34 * Mellon University, makes this software available to CMU to distribute
35 * or use in any manner that they see fit as long as this message is kept with
36 * the software. For this reason TFS also grants any other persons or
37 * organisations permission to use or modify this software.
38 *
39 * TFS supplies this software to be publicly redistributed
40 * on the understanding that TFS is not responsible for the correct
41 * functioning of this software in any circumstances.
42 *
43 * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
44 *
45 * from: cd.c,v 1.83 1997/05/04 15:24:22 joerg Exp $
46 */
47
48 #include <sys/cdefs.h>
49 __FBSDID("$FreeBSD: releng/6.4/sys/cam/scsi/scsi_cd.c 181127 2008-08-01 18:25:28Z emaste $");
50
51 #include "opt_cd.h"
52
53 #include <sys/param.h>
54 #include <sys/systm.h>
55 #include <sys/kernel.h>
56 #include <sys/bio.h>
57 #include <sys/conf.h>
58 #include <sys/disk.h>
59 #include <sys/malloc.h>
60 #include <sys/cdio.h>
61 #include <sys/cdrio.h>
62 #include <sys/dvdio.h>
63 #include <sys/devicestat.h>
64 #include <sys/sysctl.h>
65 #include <sys/taskqueue.h>
66 #include <geom/geom_disk.h>
67
68 #include <cam/cam.h>
69 #include <cam/cam_ccb.h>
70 #include <cam/cam_periph.h>
71 #include <cam/cam_xpt_periph.h>
72 #include <cam/cam_queue.h>
73
74 #include <cam/scsi/scsi_message.h>
75 #include <cam/scsi/scsi_da.h>
76 #include <cam/scsi/scsi_cd.h>
77
78 #define LEADOUT 0xaa /* leadout toc entry */
79
80 struct cd_params {
81 u_int32_t blksize;
82 u_long disksize;
83 };
84
85 typedef enum {
86 CD_Q_NONE = 0x00,
87 CD_Q_NO_TOUCH = 0x01,
88 CD_Q_BCD_TRACKS = 0x02,
89 CD_Q_NO_CHANGER = 0x04,
90 CD_Q_CHANGER = 0x08,
91 CD_Q_10_BYTE_ONLY = 0x10
92 } cd_quirks;
93
94 typedef enum {
95 CD_FLAG_INVALID = 0x0001,
96 CD_FLAG_NEW_DISC = 0x0002,
97 CD_FLAG_DISC_LOCKED = 0x0004,
98 CD_FLAG_DISC_REMOVABLE = 0x0008,
99 CD_FLAG_TAGGED_QUEUING = 0x0010,
100 CD_FLAG_CHANGER = 0x0040,
101 CD_FLAG_ACTIVE = 0x0080,
102 CD_FLAG_SCHED_ON_COMP = 0x0100,
103 CD_FLAG_RETRY_UA = 0x0200,
104 CD_FLAG_VALID_MEDIA = 0x0400,
105 CD_FLAG_VALID_TOC = 0x0800,
106 CD_FLAG_SCTX_INIT = 0x1000
107 } cd_flags;
108
109 typedef enum {
110 CD_CCB_PROBE = 0x01,
111 CD_CCB_BUFFER_IO = 0x02,
112 CD_CCB_WAITING = 0x03,
113 CD_CCB_TYPE_MASK = 0x0F,
114 CD_CCB_RETRY_UA = 0x10
115 } cd_ccb_state;
116
117 typedef enum {
118 CHANGER_TIMEOUT_SCHED = 0x01,
119 CHANGER_SHORT_TMOUT_SCHED = 0x02,
120 CHANGER_MANUAL_CALL = 0x04,
121 CHANGER_NEED_TIMEOUT = 0x08
122 } cd_changer_flags;
123
124 #define ccb_state ppriv_field0
125 #define ccb_bp ppriv_ptr1
126
127 struct cd_tocdata {
128 struct ioc_toc_header header;
129 struct cd_toc_entry entries[100];
130 };
131
132 struct cd_toc_single {
133 struct ioc_toc_header header;
134 struct cd_toc_entry entry;
135 };
136
137 typedef enum {
138 CD_STATE_PROBE,
139 CD_STATE_NORMAL
140 } cd_state;
141
142 struct cd_softc {
143 cam_pinfo pinfo;
144 cd_state state;
145 volatile cd_flags flags;
146 struct bio_queue_head bio_queue;
147 LIST_HEAD(, ccb_hdr) pending_ccbs;
148 struct cd_params params;
149 union ccb saved_ccb;
150 cd_quirks quirks;
151 STAILQ_ENTRY(cd_softc) changer_links;
152 struct cdchanger *changer;
153 int bufs_left;
154 struct cam_periph *periph;
155 int minimum_command_size;
156 int outstanding_cmds;
157 struct task sysctl_task;
158 struct sysctl_ctx_list sysctl_ctx;
159 struct sysctl_oid *sysctl_tree;
160 STAILQ_HEAD(, cd_mode_params) mode_queue;
161 struct cd_tocdata toc;
162 struct disk *disk;
163 };
164
165 struct cd_page_sizes {
166 int page;
167 int page_size;
168 };
169
170 static struct cd_page_sizes cd_page_size_table[] =
171 {
172 { AUDIO_PAGE, sizeof(struct cd_audio_page)}
173 };
174
175 struct cd_quirk_entry {
176 struct scsi_inquiry_pattern inq_pat;
177 cd_quirks quirks;
178 };
179
180 /*
181 * The changer quirk entries aren't strictly necessary. Basically, what
182 * they do is tell cdregister() up front that a device is a changer.
183 * Otherwise, it will figure that fact out once it sees a LUN on the device
184 * that is greater than 0. If it is known up front that a device is a changer,
185 * all I/O to the device will go through the changer scheduling routines, as
186 * opposed to the "normal" CD code.
187 *
188 * NOTE ON 10_BYTE_ONLY quirks: Any 10_BYTE_ONLY quirks MUST be because
189 * your device hangs when it gets a 10 byte command. Adding a quirk just
190 * to get rid of the informative diagnostic message is not acceptable. All
191 * 10_BYTE_ONLY quirks must be documented in full in a PR (which should be
192 * referenced in a comment along with the quirk) , and must be approved by
193 * ken@FreeBSD.org. Any quirks added that don't adhere to this policy may
194 * be removed until the submitter can explain why they are needed.
195 * 10_BYTE_ONLY quirks will be removed (as they will no longer be necessary)
196 * when the CAM_NEW_TRAN_CODE work is done.
197 */
198 static struct cd_quirk_entry cd_quirk_table[] =
199 {
200 {
201 { T_CDROM, SIP_MEDIA_REMOVABLE, "NRC", "MBR-7", "*"},
202 /*quirks*/ CD_Q_CHANGER
203 },
204 {
205 { T_CDROM, SIP_MEDIA_REMOVABLE, "PIONEER", "CD-ROM DRM*",
206 "*"}, /* quirks */ CD_Q_CHANGER
207 },
208 {
209 { T_CDROM, SIP_MEDIA_REMOVABLE, "NAKAMICH", "MJ-*", "*"},
210 /* quirks */ CD_Q_CHANGER
211 },
212 {
213 { T_CDROM, SIP_MEDIA_REMOVABLE, "CHINON", "CD-ROM CDS-535","*"},
214 /* quirks */ CD_Q_BCD_TRACKS
215 }
216 };
217
218 static disk_open_t cdopen;
219 static disk_close_t cdclose;
220 static disk_ioctl_t cdioctl;
221 static disk_strategy_t cdstrategy;
222
223 static periph_init_t cdinit;
224 static periph_ctor_t cdregister;
225 static periph_dtor_t cdcleanup;
226 static periph_start_t cdstart;
227 static periph_oninv_t cdoninvalidate;
228 static void cdasync(void *callback_arg, u_int32_t code,
229 struct cam_path *path, void *arg);
230 static int cdcmdsizesysctl(SYSCTL_HANDLER_ARGS);
231 static void cdshorttimeout(void *arg);
232 static void cdschedule(struct cam_periph *periph, int priority);
233 static void cdrunchangerqueue(void *arg);
234 static void cdchangerschedule(struct cd_softc *softc);
235 static int cdrunccb(union ccb *ccb,
236 int (*error_routine)(union ccb *ccb,
237 u_int32_t cam_flags,
238 u_int32_t sense_flags),
239 u_int32_t cam_flags, u_int32_t sense_flags);
240 static union ccb *cdgetccb(struct cam_periph *periph,
241 u_int32_t priority);
242 static void cddone(struct cam_periph *periph,
243 union ccb *start_ccb);
244 static union cd_pages *cdgetpage(struct cd_mode_params *mode_params);
245 static int cdgetpagesize(int page_num);
246 static void cdprevent(struct cam_periph *periph, int action);
247 static int cdcheckmedia(struct cam_periph *periph);
248 static int cdsize(struct cam_periph *periph, u_int32_t *size);
249 static int cd6byteworkaround(union ccb *ccb);
250 static int cderror(union ccb *ccb, u_int32_t cam_flags,
251 u_int32_t sense_flags);
252 static int cdreadtoc(struct cam_periph *periph, u_int32_t mode,
253 u_int32_t start, u_int8_t *data,
254 u_int32_t len, u_int32_t sense_flags);
255 static int cdgetmode(struct cam_periph *periph,
256 struct cd_mode_params *data, u_int32_t page);
257 static int cdsetmode(struct cam_periph *periph,
258 struct cd_mode_params *data);
259 static int cdplay(struct cam_periph *periph, u_int32_t blk,
260 u_int32_t len);
261 static int cdreadsubchannel(struct cam_periph *periph,
262 u_int32_t mode, u_int32_t format,
263 int track,
264 struct cd_sub_channel_info *data,
265 u_int32_t len);
266 static int cdplaymsf(struct cam_periph *periph, u_int32_t startm,
267 u_int32_t starts, u_int32_t startf,
268 u_int32_t endm, u_int32_t ends,
269 u_int32_t endf);
270 static int cdplaytracks(struct cam_periph *periph,
271 u_int32_t strack, u_int32_t sindex,
272 u_int32_t etrack, u_int32_t eindex);
273 static int cdpause(struct cam_periph *periph, u_int32_t go);
274 static int cdstopunit(struct cam_periph *periph, u_int32_t eject);
275 static int cdstartunit(struct cam_periph *periph, int load);
276 static int cdsetspeed(struct cam_periph *periph,
277 u_int32_t rdspeed, u_int32_t wrspeed);
278 static int cdreportkey(struct cam_periph *periph,
279 struct dvd_authinfo *authinfo);
280 static int cdsendkey(struct cam_periph *periph,
281 struct dvd_authinfo *authinfo);
282 static int cdreaddvdstructure(struct cam_periph *periph,
283 struct dvd_struct *dvdstruct);
284
285 static struct periph_driver cddriver =
286 {
287 cdinit, "cd",
288 TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0
289 };
290
291 PERIPHDRIVER_DECLARE(cd, cddriver);
292
293
294 static int num_changers;
295
296 #ifndef CHANGER_MIN_BUSY_SECONDS
297 #define CHANGER_MIN_BUSY_SECONDS 5
298 #endif
299 #ifndef CHANGER_MAX_BUSY_SECONDS
300 #define CHANGER_MAX_BUSY_SECONDS 15
301 #endif
302
303 static int changer_min_busy_seconds = CHANGER_MIN_BUSY_SECONDS;
304 static int changer_max_busy_seconds = CHANGER_MAX_BUSY_SECONDS;
305
306 SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver");
307 SYSCTL_NODE(_kern_cam_cd, OID_AUTO, changer, CTLFLAG_RD, 0, "CD Changer");
308 SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, min_busy_seconds, CTLFLAG_RW,
309 &changer_min_busy_seconds, 0, "Minimum changer scheduling quantum");
310 TUNABLE_INT("kern.cam.cd.changer.min_busy_seconds", &changer_min_busy_seconds);
311 SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, max_busy_seconds, CTLFLAG_RW,
312 &changer_max_busy_seconds, 0, "Maximum changer scheduling quantum");
313 TUNABLE_INT("kern.cam.cd.changer.max_busy_seconds", &changer_max_busy_seconds);
314
315 struct cdchanger {
316 path_id_t path_id;
317 target_id_t target_id;
318 int num_devices;
319 struct camq devq;
320 struct timeval start_time;
321 struct cd_softc *cur_device;
322 struct callout_handle short_handle;
323 struct callout_handle long_handle;
324 volatile cd_changer_flags flags;
325 STAILQ_ENTRY(cdchanger) changer_links;
326 STAILQ_HEAD(chdevlist, cd_softc) chluns;
327 };
328
329 static STAILQ_HEAD(changerlist, cdchanger) changerq;
330
331
332 MALLOC_DEFINE(M_SCSICD, "scsi_cd", "scsi_cd buffers");
333
334 static void
335 cdinit(void)
336 {
337 cam_status status;
338 struct cam_path *path;
339
340 /*
341 * Install a global async callback. This callback will
342 * receive async callbacks like "new device found".
343 */
344 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID,
345 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
346
347 if (status == CAM_REQ_CMP) {
348 struct ccb_setasync csa;
349
350 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
351 csa.ccb_h.func_code = XPT_SASYNC_CB;
352 csa.event_enable = AC_FOUND_DEVICE;
353 csa.callback = cdasync;
354 csa.callback_arg = NULL;
355 xpt_action((union ccb *)&csa);
356 status = csa.ccb_h.status;
357 xpt_free_path(path);
358 }
359
360 if (status != CAM_REQ_CMP) {
361 printf("cd: Failed to attach master async callback "
362 "due to status 0x%x!\n", status);
363 }
364 }
365
366 static void
367 cdoninvalidate(struct cam_periph *periph)
368 {
369 int s;
370 struct cd_softc *softc;
371 struct ccb_setasync csa;
372
373 softc = (struct cd_softc *)periph->softc;
374
375 /*
376 * De-register any async callbacks.
377 */
378 xpt_setup_ccb(&csa.ccb_h, periph->path,
379 /* priority */ 5);
380 csa.ccb_h.func_code = XPT_SASYNC_CB;
381 csa.event_enable = 0;
382 csa.callback = cdasync;
383 csa.callback_arg = periph;
384 xpt_action((union ccb *)&csa);
385
386 softc->flags |= CD_FLAG_INVALID;
387
388 /*
389 * Although the oninvalidate() routines are always called at
390 * splsoftcam, we need to be at splbio() here to keep the buffer
391 * queue from being modified while we traverse it.
392 */
393 s = splbio();
394
395 /*
396 * Return all queued I/O with ENXIO.
397 * XXX Handle any transactions queued to the card
398 * with XPT_ABORT_CCB.
399 */
400 bioq_flush(&softc->bio_queue, NULL, ENXIO);
401 splx(s);
402
403 /*
404 * If this device is part of a changer, and it was scheduled
405 * to run, remove it from the run queue since we just nuked
406 * all of its scheduled I/O.
407 */
408 if ((softc->flags & CD_FLAG_CHANGER)
409 && (softc->pinfo.index != CAM_UNQUEUED_INDEX))
410 camq_remove(&softc->changer->devq, softc->pinfo.index);
411
412 disk_gone(softc->disk);
413 xpt_print_path(periph->path);
414 printf("lost device\n");
415 }
416
417 static void
418 cdcleanup(struct cam_periph *periph)
419 {
420 struct cd_softc *softc;
421 int s;
422
423 softc = (struct cd_softc *)periph->softc;
424
425 xpt_print_path(periph->path);
426 printf("removing device entry\n");
427
428 if ((softc->flags & CD_FLAG_SCTX_INIT) != 0
429 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
430 xpt_print_path(periph->path);
431 printf("can't remove sysctl context\n");
432 }
433
434 s = splsoftcam();
435 /*
436 * In the queued, non-active case, the device in question
437 * has already been removed from the changer run queue. Since this
438 * device is active, we need to de-activate it, and schedule
439 * another device to run. (if there is another one to run)
440 */
441 if ((softc->flags & CD_FLAG_CHANGER)
442 && (softc->flags & CD_FLAG_ACTIVE)) {
443
444 /*
445 * The purpose of the short timeout is soley to determine
446 * whether the current device has finished or not. Well,
447 * since we're removing the active device, we know that it
448 * is finished. So, get rid of the short timeout.
449 * Otherwise, if we're in the time period before the short
450 * timeout fires, and there are no other devices in the
451 * queue to run, there won't be any other device put in the
452 * active slot. i.e., when we call cdrunchangerqueue()
453 * below, it won't do anything. Then, when the short
454 * timeout fires, it'll look at the "current device", which
455 * we are free below, and possibly panic the kernel on a
456 * bogus pointer reference.
457 *
458 * The long timeout doesn't really matter, since we
459 * decrement the qfrozen_cnt to indicate that there is
460 * nothing in the active slot now. Therefore, there won't
461 * be any bogus pointer references there.
462 */
463 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) {
464 untimeout(cdshorttimeout, softc->changer,
465 softc->changer->short_handle);
466 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED;
467 }
468 softc->changer->devq.qfrozen_cnt--;
469 softc->changer->flags |= CHANGER_MANUAL_CALL;
470 cdrunchangerqueue(softc->changer);
471 }
472
473 /*
474 * If we're removing the last device on the changer, go ahead and
475 * remove the changer device structure.
476 */
477 if ((softc->flags & CD_FLAG_CHANGER)
478 && (--softc->changer->num_devices == 0)) {
479
480 /*
481 * Theoretically, there shouldn't be any timeouts left, but
482 * I'm not completely sure that that will be the case. So,
483 * it won't hurt to check and see if there are any left.
484 */
485 if (softc->changer->flags & CHANGER_TIMEOUT_SCHED) {
486 untimeout(cdrunchangerqueue, softc->changer,
487 softc->changer->long_handle);
488 softc->changer->flags &= ~CHANGER_TIMEOUT_SCHED;
489 }
490
491 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) {
492 untimeout(cdshorttimeout, softc->changer,
493 softc->changer->short_handle);
494 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED;
495 }
496
497 STAILQ_REMOVE(&changerq, softc->changer, cdchanger,
498 changer_links);
499 xpt_print_path(periph->path);
500 printf("removing changer entry\n");
501 free(softc->changer, M_DEVBUF);
502 num_changers--;
503 }
504 disk_destroy(softc->disk);
505 free(softc, M_DEVBUF);
506 splx(s);
507 }
508
509 static void
510 cdasync(void *callback_arg, u_int32_t code,
511 struct cam_path *path, void *arg)
512 {
513 struct cam_periph *periph;
514
515 periph = (struct cam_periph *)callback_arg;
516 switch (code) {
517 case AC_FOUND_DEVICE:
518 {
519 struct ccb_getdev *cgd;
520 cam_status status;
521
522 cgd = (struct ccb_getdev *)arg;
523 if (cgd == NULL)
524 break;
525
526 if (SID_TYPE(&cgd->inq_data) != T_CDROM
527 && SID_TYPE(&cgd->inq_data) != T_WORM)
528 break;
529
530 /*
531 * Allocate a peripheral instance for
532 * this device and start the probe
533 * process.
534 */
535 status = cam_periph_alloc(cdregister, cdoninvalidate,
536 cdcleanup, cdstart,
537 "cd", CAM_PERIPH_BIO,
538 cgd->ccb_h.path, cdasync,
539 AC_FOUND_DEVICE, cgd);
540
541 if (status != CAM_REQ_CMP
542 && status != CAM_REQ_INPROG)
543 printf("cdasync: Unable to attach new device "
544 "due to status 0x%x\n", status);
545
546 break;
547 }
548 case AC_SENT_BDR:
549 case AC_BUS_RESET:
550 {
551 struct cd_softc *softc;
552 struct ccb_hdr *ccbh;
553 int s;
554
555 softc = (struct cd_softc *)periph->softc;
556 s = splsoftcam();
557 /*
558 * Don't fail on the expected unit attention
559 * that will occur.
560 */
561 softc->flags |= CD_FLAG_RETRY_UA;
562 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
563 ccbh->ccb_state |= CD_CCB_RETRY_UA;
564 splx(s);
565 /* FALLTHROUGH */
566 }
567 default:
568 cam_periph_async(periph, code, path, arg);
569 break;
570 }
571 }
572
573 static void
574 cdsysctlinit(void *context, int pending)
575 {
576 struct cam_periph *periph;
577 struct cd_softc *softc;
578 char tmpstr[80], tmpstr2[80];
579
580 periph = (struct cam_periph *)context;
581 softc = (struct cd_softc *)periph->softc;
582
583 snprintf(tmpstr, sizeof(tmpstr), "CAM CD unit %d", periph->unit_number);
584 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
585
586 mtx_lock(&Giant);
587
588 sysctl_ctx_init(&softc->sysctl_ctx);
589 softc->flags |= CD_FLAG_SCTX_INIT;
590 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
591 SYSCTL_STATIC_CHILDREN(_kern_cam_cd), OID_AUTO,
592 tmpstr2, CTLFLAG_RD, 0, tmpstr);
593
594 if (softc->sysctl_tree == NULL) {
595 printf("cdsysctlinit: unable to allocate sysctl tree\n");
596 mtx_unlock(&Giant);
597 return;
598 }
599
600 /*
601 * Now register the sysctl handler, so the user can the value on
602 * the fly.
603 */
604 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree),
605 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
606 &softc->minimum_command_size, 0, cdcmdsizesysctl, "I",
607 "Minimum CDB size");
608
609 mtx_unlock(&Giant);
610 }
611
612 /*
613 * We have a handler function for this so we can check the values when the
614 * user sets them, instead of every time we look at them.
615 */
616 static int
617 cdcmdsizesysctl(SYSCTL_HANDLER_ARGS)
618 {
619 int error, value;
620
621 value = *(int *)arg1;
622
623 error = sysctl_handle_int(oidp, &value, 0, req);
624
625 if ((error != 0)
626 || (req->newptr == NULL))
627 return (error);
628
629 /*
630 * The only real values we can have here are 6 or 10. I don't
631 * really forsee having 12 be an option at any time in the future.
632 * So if the user sets something less than or equal to 6, we'll set
633 * it to 6. If he sets something greater than 6, we'll set it to 10.
634 *
635 * I suppose we could just return an error here for the wrong values,
636 * but I don't think it's necessary to do so, as long as we can
637 * determine the user's intent without too much trouble.
638 */
639 if (value < 6)
640 value = 6;
641 else if (value > 6)
642 value = 10;
643
644 *(int *)arg1 = value;
645
646 return (0);
647 }
648
649 static cam_status
650 cdregister(struct cam_periph *periph, void *arg)
651 {
652 struct cd_softc *softc;
653 struct ccb_setasync csa;
654 struct ccb_pathinq cpi;
655 struct ccb_getdev *cgd;
656 char tmpstr[80];
657 caddr_t match;
658
659 cgd = (struct ccb_getdev *)arg;
660 if (periph == NULL) {
661 printf("cdregister: periph was NULL!!\n");
662 return(CAM_REQ_CMP_ERR);
663 }
664 if (cgd == NULL) {
665 printf("cdregister: no getdev CCB, can't register device\n");
666 return(CAM_REQ_CMP_ERR);
667 }
668
669 softc = (struct cd_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT);
670
671 if (softc == NULL) {
672 printf("cdregister: Unable to probe new device. "
673 "Unable to allocate softc\n");
674 return(CAM_REQ_CMP_ERR);
675 }
676
677 bzero(softc, sizeof(*softc));
678 LIST_INIT(&softc->pending_ccbs);
679 STAILQ_INIT(&softc->mode_queue);
680 softc->state = CD_STATE_PROBE;
681 bioq_init(&softc->bio_queue);
682 if (SID_IS_REMOVABLE(&cgd->inq_data))
683 softc->flags |= CD_FLAG_DISC_REMOVABLE;
684 if ((cgd->inq_data.flags & SID_CmdQue) != 0)
685 softc->flags |= CD_FLAG_TAGGED_QUEUING;
686
687 periph->softc = softc;
688 softc->periph = periph;
689
690 /*
691 * See if this device has any quirks.
692 */
693 match = cam_quirkmatch((caddr_t)&cgd->inq_data,
694 (caddr_t)cd_quirk_table,
695 sizeof(cd_quirk_table)/sizeof(*cd_quirk_table),
696 sizeof(*cd_quirk_table), scsi_inquiry_match);
697
698 if (match != NULL)
699 softc->quirks = ((struct cd_quirk_entry *)match)->quirks;
700 else
701 softc->quirks = CD_Q_NONE;
702
703 /* Check if the SIM does not want 6 byte commands */
704 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1);
705 cpi.ccb_h.func_code = XPT_PATH_INQ;
706 xpt_action((union ccb *)&cpi);
707 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
708 softc->quirks |= CD_Q_10_BYTE_ONLY;
709
710 TASK_INIT(&softc->sysctl_task, 0, cdsysctlinit, periph);
711
712 /* The default is 6 byte commands, unless quirked otherwise */
713 if (softc->quirks & CD_Q_10_BYTE_ONLY)
714 softc->minimum_command_size = 10;
715 else
716 softc->minimum_command_size = 6;
717
718 /*
719 * Load the user's default, if any.
720 */
721 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.cd.%d.minimum_cmd_size",
722 periph->unit_number);
723 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_command_size);
724
725 /* 6 and 10 are the only permissible values here. */
726 if (softc->minimum_command_size < 6)
727 softc->minimum_command_size = 6;
728 else if (softc->minimum_command_size > 6)
729 softc->minimum_command_size = 10;
730
731 /*
732 * We need to register the statistics structure for this device,
733 * but we don't have the blocksize yet for it. So, we register
734 * the structure and indicate that we don't have the blocksize
735 * yet. Unlike other SCSI peripheral drivers, we explicitly set
736 * the device type here to be CDROM, rather than just ORing in
737 * the device type. This is because this driver can attach to either
738 * CDROM or WORM devices, and we want this peripheral driver to
739 * show up in the devstat list as a CD peripheral driver, not a
740 * WORM peripheral driver. WORM drives will also have the WORM
741 * driver attached to them.
742 */
743 softc->disk = disk_alloc();
744 softc->disk->d_devstat = devstat_new_entry("cd",
745 periph->unit_number, 0,
746 DEVSTAT_BS_UNAVAILABLE,
747 DEVSTAT_TYPE_CDROM | DEVSTAT_TYPE_IF_SCSI,
748 DEVSTAT_PRIORITY_CD);
749 softc->disk->d_open = cdopen;
750 softc->disk->d_close = cdclose;
751 softc->disk->d_strategy = cdstrategy;
752 softc->disk->d_ioctl = cdioctl;
753 softc->disk->d_name = "cd";
754 softc->disk->d_unit = periph->unit_number;
755 softc->disk->d_drv1 = periph;
756 softc->disk->d_flags = DISKFLAG_NEEDSGIANT;
757 disk_create(softc->disk, DISK_VERSION);
758
759 /*
760 * Add an async callback so that we get
761 * notified if this device goes away.
762 */
763 xpt_setup_ccb(&csa.ccb_h, periph->path,
764 /* priority */ 5);
765 csa.ccb_h.func_code = XPT_SASYNC_CB;
766 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE;
767 csa.callback = cdasync;
768 csa.callback_arg = periph;
769 xpt_action((union ccb *)&csa);
770
771 /*
772 * If the target lun is greater than 0, we most likely have a CD
773 * changer device. Check the quirk entries as well, though, just
774 * in case someone has a CD tower with one lun per drive or
775 * something like that. Also, if we know up front that a
776 * particular device is a changer, we can mark it as such starting
777 * with lun 0, instead of lun 1. It shouldn't be necessary to have
778 * a quirk entry to define something as a changer, however.
779 */
780 if (((cgd->ccb_h.target_lun > 0)
781 && ((softc->quirks & CD_Q_NO_CHANGER) == 0))
782 || ((softc->quirks & CD_Q_CHANGER) != 0)) {
783 struct cdchanger *nchanger;
784 struct cam_periph *nperiph;
785 struct cam_path *path;
786 cam_status status;
787 int found;
788
789 /* Set the changer flag in the current device's softc */
790 softc->flags |= CD_FLAG_CHANGER;
791
792 if (num_changers == 0)
793 STAILQ_INIT(&changerq);
794
795 /*
796 * Now, look around for an existing changer device with the
797 * same path and target ID as the current device.
798 */
799 for (found = 0,
800 nchanger = (struct cdchanger *)STAILQ_FIRST(&changerq);
801 nchanger != NULL;
802 nchanger = STAILQ_NEXT(nchanger, changer_links)){
803 if ((nchanger->path_id == cgd->ccb_h.path_id)
804 && (nchanger->target_id == cgd->ccb_h.target_id)) {
805 found = 1;
806 break;
807 }
808 }
809
810 /*
811 * If we found a matching entry, just add this device to
812 * the list of devices on this changer.
813 */
814 if (found == 1) {
815 struct chdevlist *chlunhead;
816
817 chlunhead = &nchanger->chluns;
818
819 /*
820 * XXX KDM look at consolidating this code with the
821 * code below in a separate function.
822 */
823
824 /*
825 * Create a path with lun id 0, and see if we can
826 * find a matching device
827 */
828 status = xpt_create_path(&path, /*periph*/ periph,
829 cgd->ccb_h.path_id,
830 cgd->ccb_h.target_id, 0);
831
832 if ((status == CAM_REQ_CMP)
833 && ((nperiph = cam_periph_find(path, "cd")) != NULL)){
834 struct cd_softc *nsoftc;
835
836 nsoftc = (struct cd_softc *)nperiph->softc;
837
838 if ((nsoftc->flags & CD_FLAG_CHANGER) == 0){
839 nsoftc->flags |= CD_FLAG_CHANGER;
840 nchanger->num_devices++;
841 if (camq_resize(&nchanger->devq,
842 nchanger->num_devices)!=CAM_REQ_CMP){
843 printf("cdregister: "
844 "camq_resize "
845 "failed, changer "
846 "support may "
847 "be messed up\n");
848 }
849 nsoftc->changer = nchanger;
850 nsoftc->pinfo.index =CAM_UNQUEUED_INDEX;
851
852 STAILQ_INSERT_TAIL(&nchanger->chluns,
853 nsoftc,changer_links);
854 }
855 xpt_free_path(path);
856 } else if (status == CAM_REQ_CMP)
857 xpt_free_path(path);
858 else {
859 printf("cdregister: unable to allocate path\n"
860 "cdregister: changer support may be "
861 "broken\n");
862 }
863
864 nchanger->num_devices++;
865
866 softc->changer = nchanger;
867 softc->pinfo.index = CAM_UNQUEUED_INDEX;
868
869 if (camq_resize(&nchanger->devq,
870 nchanger->num_devices) != CAM_REQ_CMP) {
871 printf("cdregister: camq_resize "
872 "failed, changer support may "
873 "be messed up\n");
874 }
875
876 STAILQ_INSERT_TAIL(chlunhead, softc, changer_links);
877 }
878 /*
879 * In this case, we don't already have an entry for this
880 * particular changer, so we need to create one, add it to
881 * the queue, and queue this device on the list for this
882 * changer. Before we queue this device, however, we need
883 * to search for lun id 0 on this target, and add it to the
884 * queue first, if it exists. (and if it hasn't already
885 * been marked as part of the changer.)
886 */
887 else {
888 nchanger = malloc(sizeof(struct cdchanger),
889 M_DEVBUF, M_NOWAIT);
890
891 if (nchanger == NULL) {
892 softc->flags &= ~CD_FLAG_CHANGER;
893 printf("cdregister: unable to malloc "
894 "changer structure\ncdregister: "
895 "changer support disabled\n");
896
897 /*
898 * Yes, gotos can be gross but in this case
899 * I think it's justified..
900 */
901 goto cdregisterexit;
902 }
903
904 /* zero the structure */
905 bzero(nchanger, sizeof(struct cdchanger));
906
907 if (camq_init(&nchanger->devq, 1) != 0) {
908 softc->flags &= ~CD_FLAG_CHANGER;
909 printf("cdregister: changer support "
910 "disabled\n");
911 goto cdregisterexit;
912 }
913
914 num_changers++;
915
916 nchanger->path_id = cgd->ccb_h.path_id;
917 nchanger->target_id = cgd->ccb_h.target_id;
918
919 /* this is superfluous, but it makes things clearer */
920 nchanger->num_devices = 0;
921
922 STAILQ_INIT(&nchanger->chluns);
923
924 STAILQ_INSERT_TAIL(&changerq, nchanger,
925 changer_links);
926
927 /*
928 * Create a path with lun id 0, and see if we can
929 * find a matching device
930 */
931 status = xpt_create_path(&path, /*periph*/ periph,
932 cgd->ccb_h.path_id,
933 cgd->ccb_h.target_id, 0);
934
935 /*
936 * If we were able to allocate the path, and if we
937 * find a matching device and it isn't already
938 * marked as part of a changer, then we add it to
939 * the current changer.
940 */
941 if ((status == CAM_REQ_CMP)
942 && ((nperiph = cam_periph_find(path, "cd")) != NULL)
943 && ((((struct cd_softc *)periph->softc)->flags &
944 CD_FLAG_CHANGER) == 0)) {
945 struct cd_softc *nsoftc;
946
947 nsoftc = (struct cd_softc *)nperiph->softc;
948
949 nsoftc->flags |= CD_FLAG_CHANGER;
950 nchanger->num_devices++;
951 if (camq_resize(&nchanger->devq,
952 nchanger->num_devices) != CAM_REQ_CMP) {
953 printf("cdregister: camq_resize "
954 "failed, changer support may "
955 "be messed up\n");
956 }
957 nsoftc->changer = nchanger;
958 nsoftc->pinfo.index = CAM_UNQUEUED_INDEX;
959
960 STAILQ_INSERT_TAIL(&nchanger->chluns,
961 nsoftc, changer_links);
962 xpt_free_path(path);
963 } else if (status == CAM_REQ_CMP)
964 xpt_free_path(path);
965 else {
966 printf("cdregister: unable to allocate path\n"
967 "cdregister: changer support may be "
968 "broken\n");
969 }
970
971 softc->changer = nchanger;
972 softc->pinfo.index = CAM_UNQUEUED_INDEX;
973 nchanger->num_devices++;
974 if (camq_resize(&nchanger->devq,
975 nchanger->num_devices) != CAM_REQ_CMP) {
976 printf("cdregister: camq_resize "
977 "failed, changer support may "
978 "be messed up\n");
979 }
980 STAILQ_INSERT_TAIL(&nchanger->chluns, softc,
981 changer_links);
982 }
983 }
984
985 cdregisterexit:
986
987 /* Lock this peripheral until we are setup */
988 /* Can't block */
989 cam_periph_lock(periph, PRIBIO);
990
991 if ((softc->flags & CD_FLAG_CHANGER) == 0)
992 xpt_schedule(periph, /*priority*/5);
993 else
994 cdschedule(periph, /*priority*/ 5);
995
996 return(CAM_REQ_CMP);
997 }
998
999 static int
1000 cdopen(struct disk *dp)
1001 {
1002 struct cam_periph *periph;
1003 struct cd_softc *softc;
1004 int error;
1005 int s;
1006
1007 periph = (struct cam_periph *)dp->d_drv1;
1008 if (periph == NULL)
1009 return (ENXIO);
1010
1011 softc = (struct cd_softc *)periph->softc;
1012
1013 /*
1014 * Grab splsoftcam and hold it until we lock the peripheral.
1015 */
1016 s = splsoftcam();
1017 if (softc->flags & CD_FLAG_INVALID) {
1018 splx(s);
1019 return(ENXIO);
1020 }
1021
1022 if ((error = cam_periph_lock(periph, PRIBIO | PCATCH)) != 0) {
1023 splx(s);
1024 return (error);
1025 }
1026
1027 splx(s);
1028
1029 if (cam_periph_acquire(periph) != CAM_REQ_CMP)
1030 return(ENXIO);
1031
1032 /*
1033 * Check for media, and set the appropriate flags. We don't bail
1034 * if we don't have media, but then we don't allow anything but the
1035 * CDIOCEJECT/CDIOCCLOSE ioctls if there is no media.
1036 */
1037 cdcheckmedia(periph);
1038
1039 cam_periph_unlock(periph);
1040
1041 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n"));
1042
1043 return (error);
1044 }
1045
1046 static int
1047 cdclose(struct disk *dp)
1048 {
1049 struct cam_periph *periph;
1050 struct cd_softc *softc;
1051 int error;
1052
1053 periph = (struct cam_periph *)dp->d_drv1;
1054 if (periph == NULL)
1055 return (ENXIO);
1056
1057 softc = (struct cd_softc *)periph->softc;
1058
1059 if ((error = cam_periph_lock(periph, PRIBIO)) != 0)
1060 return (error);
1061
1062 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0)
1063 cdprevent(periph, PR_ALLOW);
1064
1065 /*
1066 * Since we're closing this CD, mark the blocksize as unavailable.
1067 * It will be marked as available when the CD is opened again.
1068 */
1069 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
1070
1071 /*
1072 * We'll check the media and toc again at the next open().
1073 */
1074 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC);
1075
1076 cam_periph_unlock(periph);
1077 cam_periph_release(periph);
1078
1079 return (0);
1080 }
1081
1082 static void
1083 cdshorttimeout(void *arg)
1084 {
1085 struct cdchanger *changer;
1086 int s;
1087
1088 s = splsoftcam();
1089
1090 changer = (struct cdchanger *)arg;
1091
1092 /* Always clear the short timeout flag, since that's what we're in */
1093 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED;
1094
1095 /*
1096 * Check to see if there is any more pending or outstanding I/O for
1097 * this device. If not, move it out of the active slot.
1098 */
1099 if ((bioq_first(&changer->cur_device->bio_queue) == NULL)
1100 && (changer->cur_device->outstanding_cmds == 0)) {
1101 changer->flags |= CHANGER_MANUAL_CALL;
1102 cdrunchangerqueue(changer);
1103 }
1104
1105 splx(s);
1106 }
1107
1108 /*
1109 * This is a wrapper for xpt_schedule. It only applies to changers.
1110 */
1111 static void
1112 cdschedule(struct cam_periph *periph, int priority)
1113 {
1114 struct cd_softc *softc;
1115 int s;
1116
1117 s = splsoftcam();
1118
1119 softc = (struct cd_softc *)periph->softc;
1120
1121 /*
1122 * If this device isn't currently queued, and if it isn't
1123 * the active device, then we queue this device and run the
1124 * changer queue if there is no timeout scheduled to do it.
1125 * If this device is the active device, just schedule it
1126 * to run again. If this device is queued, there should be
1127 * a timeout in place already that will make sure it runs.
1128 */
1129 if ((softc->pinfo.index == CAM_UNQUEUED_INDEX)
1130 && ((softc->flags & CD_FLAG_ACTIVE) == 0)) {
1131 /*
1132 * We don't do anything with the priority here.
1133 * This is strictly a fifo queue.
1134 */
1135 softc->pinfo.priority = 1;
1136 softc->pinfo.generation = ++softc->changer->devq.generation;
1137 camq_insert(&softc->changer->devq, (cam_pinfo *)softc);
1138
1139 /*
1140 * Since we just put a device in the changer queue,
1141 * check and see if there is a timeout scheduled for
1142 * this changer. If so, let the timeout handle
1143 * switching this device into the active slot. If
1144 * not, manually call the timeout routine to
1145 * bootstrap things.
1146 */
1147 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0)
1148 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0)
1149 && ((softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED)==0)){
1150 softc->changer->flags |= CHANGER_MANUAL_CALL;
1151 cdrunchangerqueue(softc->changer);
1152 }
1153 } else if ((softc->flags & CD_FLAG_ACTIVE)
1154 && ((softc->flags & CD_FLAG_SCHED_ON_COMP) == 0))
1155 xpt_schedule(periph, priority);
1156
1157 splx(s);
1158
1159 }
1160
1161 static void
1162 cdrunchangerqueue(void *arg)
1163 {
1164 struct cd_softc *softc;
1165 struct cdchanger *changer;
1166 int called_from_timeout;
1167 int s;
1168
1169 s = splsoftcam();
1170
1171 changer = (struct cdchanger *)arg;
1172
1173 /*
1174 * If we have NOT been called from cdstrategy() or cddone(), and
1175 * instead from a timeout routine, go ahead and clear the
1176 * timeout flag.
1177 */
1178 if ((changer->flags & CHANGER_MANUAL_CALL) == 0) {
1179 changer->flags &= ~CHANGER_TIMEOUT_SCHED;
1180 called_from_timeout = 1;
1181 } else
1182 called_from_timeout = 0;
1183
1184 /* Always clear the manual call flag */
1185 changer->flags &= ~CHANGER_MANUAL_CALL;
1186
1187 /* nothing to do if the queue is empty */
1188 if (changer->devq.entries <= 0) {
1189 splx(s);
1190 return;
1191 }
1192
1193 /*
1194 * If the changer queue is frozen, that means we have an active
1195 * device.
1196 */
1197 if (changer->devq.qfrozen_cnt > 0) {
1198
1199 if (changer->cur_device->outstanding_cmds > 0) {
1200 changer->cur_device->flags |= CD_FLAG_SCHED_ON_COMP;
1201 changer->cur_device->bufs_left =
1202 changer->cur_device->outstanding_cmds;
1203 if (called_from_timeout) {
1204 changer->long_handle =
1205 timeout(cdrunchangerqueue, changer,
1206 changer_max_busy_seconds * hz);
1207 changer->flags |= CHANGER_TIMEOUT_SCHED;
1208 }
1209 splx(s);
1210 return;
1211 }
1212
1213 /*
1214 * We always need to reset the frozen count and clear the
1215 * active flag.
1216 */
1217 changer->devq.qfrozen_cnt--;
1218 changer->cur_device->flags &= ~CD_FLAG_ACTIVE;
1219 changer->cur_device->flags &= ~CD_FLAG_SCHED_ON_COMP;
1220
1221 /*
1222 * Check to see whether the current device has any I/O left
1223 * to do. If so, requeue it at the end of the queue. If
1224 * not, there is no need to requeue it.
1225 */
1226 if (bioq_first(&changer->cur_device->bio_queue) != NULL) {
1227
1228 changer->cur_device->pinfo.generation =
1229 ++changer->devq.generation;
1230 camq_insert(&changer->devq,
1231 (cam_pinfo *)changer->cur_device);
1232 }
1233 }
1234
1235 softc = (struct cd_softc *)camq_remove(&changer->devq, CAMQ_HEAD);
1236
1237 changer->cur_device = softc;
1238
1239 changer->devq.qfrozen_cnt++;
1240 softc->flags |= CD_FLAG_ACTIVE;
1241
1242 /* Just in case this device is waiting */
1243 wakeup(&softc->changer);
1244 xpt_schedule(softc->periph, /*priority*/ 1);
1245
1246 /*
1247 * Get rid of any pending timeouts, and set a flag to schedule new
1248 * ones so this device gets its full time quantum.
1249 */
1250 if (changer->flags & CHANGER_TIMEOUT_SCHED) {
1251 untimeout(cdrunchangerqueue, changer, changer->long_handle);
1252 changer->flags &= ~CHANGER_TIMEOUT_SCHED;
1253 }
1254
1255 if (changer->flags & CHANGER_SHORT_TMOUT_SCHED) {
1256 untimeout(cdshorttimeout, changer, changer->short_handle);
1257 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED;
1258 }
1259
1260 /*
1261 * We need to schedule timeouts, but we only do this after the
1262 * first transaction has completed. This eliminates the changer
1263 * switch time.
1264 */
1265 changer->flags |= CHANGER_NEED_TIMEOUT;
1266
1267 splx(s);
1268 }
1269
1270 static void
1271 cdchangerschedule(struct cd_softc *softc)
1272 {
1273 struct cdchanger *changer;
1274 int s;
1275
1276 s = splsoftcam();
1277
1278 changer = softc->changer;
1279
1280 /*
1281 * If this is a changer, and this is the current device,
1282 * and this device has at least the minimum time quantum to
1283 * run, see if we can switch it out.
1284 */
1285 if ((softc->flags & CD_FLAG_ACTIVE)
1286 && ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0)
1287 && ((changer->flags & CHANGER_NEED_TIMEOUT) == 0)) {
1288 /*
1289 * We try three things here. The first is that we
1290 * check to see whether the schedule on completion
1291 * flag is set. If it is, we decrement the number
1292 * of buffers left, and if it's zero, we reschedule.
1293 * Next, we check to see whether the pending buffer
1294 * queue is empty and whether there are no
1295 * outstanding transactions. If so, we reschedule.
1296 * Next, we see if the pending buffer queue is empty.
1297 * If it is, we set the number of buffers left to
1298 * the current active buffer count and set the
1299 * schedule on complete flag.
1300 */
1301 if (softc->flags & CD_FLAG_SCHED_ON_COMP) {
1302 if (--softc->bufs_left == 0) {
1303 softc->changer->flags |=
1304 CHANGER_MANUAL_CALL;
1305 softc->flags &= ~CD_FLAG_SCHED_ON_COMP;
1306 cdrunchangerqueue(softc->changer);
1307 }
1308 } else if ((bioq_first(&softc->bio_queue) == NULL)
1309 && (softc->outstanding_cmds == 0)) {
1310 softc->changer->flags |= CHANGER_MANUAL_CALL;
1311 cdrunchangerqueue(softc->changer);
1312 }
1313 } else if ((softc->changer->flags & CHANGER_NEED_TIMEOUT)
1314 && (softc->flags & CD_FLAG_ACTIVE)) {
1315
1316 /*
1317 * Now that the first transaction to this
1318 * particular device has completed, we can go ahead
1319 * and schedule our timeouts.
1320 */
1321 if ((changer->flags & CHANGER_TIMEOUT_SCHED) == 0) {
1322 changer->long_handle =
1323 timeout(cdrunchangerqueue, changer,
1324 changer_max_busy_seconds * hz);
1325 changer->flags |= CHANGER_TIMEOUT_SCHED;
1326 } else
1327 printf("cdchangerschedule: already have a long"
1328 " timeout!\n");
1329
1330 if ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) {
1331 changer->short_handle =
1332 timeout(cdshorttimeout, changer,
1333 changer_min_busy_seconds * hz);
1334 changer->flags |= CHANGER_SHORT_TMOUT_SCHED;
1335 } else
1336 printf("cdchangerschedule: already have a short "
1337 "timeout!\n");
1338
1339 /*
1340 * We just scheduled timeouts, no need to schedule
1341 * more.
1342 */
1343 changer->flags &= ~CHANGER_NEED_TIMEOUT;
1344
1345 }
1346 splx(s);
1347 }
1348
1349 static int
1350 cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb,
1351 u_int32_t cam_flags,
1352 u_int32_t sense_flags),
1353 u_int32_t cam_flags, u_int32_t sense_flags)
1354 {
1355 struct cd_softc *softc;
1356 struct cam_periph *periph;
1357 int error;
1358
1359 periph = xpt_path_periph(ccb->ccb_h.path);
1360 softc = (struct cd_softc *)periph->softc;
1361
1362 error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags,
1363 softc->disk->d_devstat);
1364
1365 if (softc->flags & CD_FLAG_CHANGER)
1366 cdchangerschedule(softc);
1367
1368 return(error);
1369 }
1370
1371 static union ccb *
1372 cdgetccb(struct cam_periph *periph, u_int32_t priority)
1373 {
1374 struct cd_softc *softc;
1375 int s;
1376
1377 softc = (struct cd_softc *)periph->softc;
1378
1379 if (softc->flags & CD_FLAG_CHANGER) {
1380
1381 s = splsoftcam();
1382
1383 /*
1384 * This should work the first time this device is woken up,
1385 * but just in case it doesn't, we use a while loop.
1386 */
1387 while ((softc->flags & CD_FLAG_ACTIVE) == 0) {
1388 /*
1389 * If this changer isn't already queued, queue it up.
1390 */
1391 if (softc->pinfo.index == CAM_UNQUEUED_INDEX) {
1392 softc->pinfo.priority = 1;
1393 softc->pinfo.generation =
1394 ++softc->changer->devq.generation;
1395 camq_insert(&softc->changer->devq,
1396 (cam_pinfo *)softc);
1397 }
1398 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0)
1399 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0)
1400 && ((softc->changer->flags
1401 & CHANGER_SHORT_TMOUT_SCHED)==0)) {
1402 softc->changer->flags |= CHANGER_MANUAL_CALL;
1403 cdrunchangerqueue(softc->changer);
1404 } else
1405 tsleep(&softc->changer, PRIBIO, "cgticb", 0);
1406 }
1407 splx(s);
1408 }
1409 return(cam_periph_getccb(periph, priority));
1410 }
1411
1412
1413 /*
1414 * Actually translate the requested transfer into one the physical driver
1415 * can understand. The transfer is described by a buf and will include
1416 * only one physical transfer.
1417 */
1418 static void
1419 cdstrategy(struct bio *bp)
1420 {
1421 struct cam_periph *periph;
1422 struct cd_softc *softc;
1423 int s;
1424
1425 periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1426 if (periph == NULL) {
1427 biofinish(bp, NULL, ENXIO);
1428 return;
1429 }
1430
1431 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstrategy\n"));
1432
1433 softc = (struct cd_softc *)periph->softc;
1434
1435 /*
1436 * Mask interrupts so that the pack cannot be invalidated until
1437 * after we are in the queue. Otherwise, we might not properly
1438 * clean up one of the buffers.
1439 */
1440 s = splbio();
1441
1442 /*
1443 * If the device has been made invalid, error out
1444 */
1445 if ((softc->flags & CD_FLAG_INVALID)) {
1446 splx(s);
1447 biofinish(bp, NULL, ENXIO);
1448 return;
1449 }
1450
1451 /*
1452 * If we don't have valid media, look for it before trying to
1453 * schedule the I/O.
1454 */
1455 if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0) {
1456 int error;
1457
1458 error = cdcheckmedia(periph);
1459 if (error != 0) {
1460 splx(s);
1461 biofinish(bp, NULL, error);
1462 return;
1463 }
1464 }
1465
1466 /*
1467 * Place it in the queue of disk activities for this disk
1468 */
1469 bioq_disksort(&softc->bio_queue, bp);
1470
1471 splx(s);
1472
1473 /*
1474 * Schedule ourselves for performing the work. We do things
1475 * differently for changers.
1476 */
1477 if ((softc->flags & CD_FLAG_CHANGER) == 0)
1478 xpt_schedule(periph, /* XXX priority */1);
1479 else
1480 cdschedule(periph, /* priority */ 1);
1481
1482 return;
1483 }
1484
1485 static void
1486 cdstart(struct cam_periph *periph, union ccb *start_ccb)
1487 {
1488 struct cd_softc *softc;
1489 struct bio *bp;
1490 struct ccb_scsiio *csio;
1491 struct scsi_read_capacity_data *rcap;
1492 int s;
1493
1494 softc = (struct cd_softc *)periph->softc;
1495
1496 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n"));
1497
1498 switch (softc->state) {
1499 case CD_STATE_NORMAL:
1500 {
1501 int oldspl;
1502
1503 s = splbio();
1504 bp = bioq_first(&softc->bio_queue);
1505 if (periph->immediate_priority <= periph->pinfo.priority) {
1506 start_ccb->ccb_h.ccb_state = CD_CCB_WAITING;
1507
1508 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1509 periph_links.sle);
1510 periph->immediate_priority = CAM_PRIORITY_NONE;
1511 splx(s);
1512 wakeup(&periph->ccb_list);
1513 } else if (bp == NULL) {
1514 splx(s);
1515 xpt_release_ccb(start_ccb);
1516 } else {
1517 bioq_remove(&softc->bio_queue, bp);
1518
1519 devstat_start_transaction_bio(softc->disk->d_devstat, bp);
1520
1521 scsi_read_write(&start_ccb->csio,
1522 /*retries*/4,
1523 /* cbfcnp */ cddone,
1524 MSG_SIMPLE_Q_TAG,
1525 /* read */bp->bio_cmd == BIO_READ,
1526 /* byte2 */ 0,
1527 /* minimum_cmd_size */ 10,
1528 /* lba */ bp->bio_offset /
1529 softc->params.blksize,
1530 bp->bio_bcount / softc->params.blksize,
1531 /* data_ptr */ bp->bio_data,
1532 /* dxfer_len */ bp->bio_bcount,
1533 /* sense_len */ SSD_FULL_SIZE,
1534 /* timeout */ 30000);
1535 start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO;
1536
1537
1538 /*
1539 * Block out any asyncronous callbacks
1540 * while we touch the pending ccb list.
1541 */
1542 oldspl = splcam();
1543 LIST_INSERT_HEAD(&softc->pending_ccbs,
1544 &start_ccb->ccb_h, periph_links.le);
1545 softc->outstanding_cmds++;
1546 splx(oldspl);
1547
1548 /* We expect a unit attention from this device */
1549 if ((softc->flags & CD_FLAG_RETRY_UA) != 0) {
1550 start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA;
1551 softc->flags &= ~CD_FLAG_RETRY_UA;
1552 }
1553
1554 start_ccb->ccb_h.ccb_bp = bp;
1555 bp = bioq_first(&softc->bio_queue);
1556 splx(s);
1557
1558 xpt_action(start_ccb);
1559 }
1560 if (bp != NULL) {
1561 /* Have more work to do, so ensure we stay scheduled */
1562 xpt_schedule(periph, /* XXX priority */1);
1563 }
1564 break;
1565 }
1566 case CD_STATE_PROBE:
1567 {
1568
1569 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap),
1570 M_SCSICD,
1571 M_NOWAIT);
1572 if (rcap == NULL) {
1573 xpt_print_path(periph->path);
1574 printf("cdstart: Couldn't malloc read_capacity data\n");
1575 /* cd_free_periph??? */
1576 break;
1577 }
1578 csio = &start_ccb->csio;
1579 scsi_read_capacity(csio,
1580 /*retries*/1,
1581 cddone,
1582 MSG_SIMPLE_Q_TAG,
1583 rcap,
1584 SSD_FULL_SIZE,
1585 /*timeout*/20000);
1586 start_ccb->ccb_h.ccb_bp = NULL;
1587 start_ccb->ccb_h.ccb_state = CD_CCB_PROBE;
1588 xpt_action(start_ccb);
1589 break;
1590 }
1591 }
1592 }
1593
1594 static void
1595 cddone(struct cam_periph *periph, union ccb *done_ccb)
1596 {
1597 struct cd_softc *softc;
1598 struct ccb_scsiio *csio;
1599
1600 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n"));
1601
1602 softc = (struct cd_softc *)periph->softc;
1603 csio = &done_ccb->csio;
1604
1605 switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) {
1606 case CD_CCB_BUFFER_IO:
1607 {
1608 struct bio *bp;
1609 int error;
1610 int oldspl;
1611
1612 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
1613 error = 0;
1614
1615 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1616 int sf;
1617
1618 if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0)
1619 sf = SF_RETRY_UA;
1620 else
1621 sf = 0;
1622
1623 error = cderror(done_ccb, CAM_RETRY_SELTO, sf);
1624 if (error == ERESTART) {
1625 /*
1626 * A retry was scheuled, so
1627 * just return.
1628 */
1629 return;
1630 }
1631 }
1632
1633 if (error != 0) {
1634 int s;
1635
1636 xpt_print_path(periph->path);
1637 printf("cddone: got error %#x back\n", error);
1638 s = splbio();
1639 bioq_flush(&softc->bio_queue, NULL, EIO);
1640 splx(s);
1641 bp->bio_resid = bp->bio_bcount;
1642 bp->bio_error = error;
1643 bp->bio_flags |= BIO_ERROR;
1644 cam_release_devq(done_ccb->ccb_h.path,
1645 /*relsim_flags*/0,
1646 /*reduction*/0,
1647 /*timeout*/0,
1648 /*getcount_only*/0);
1649
1650 } else {
1651 bp->bio_resid = csio->resid;
1652 bp->bio_error = 0;
1653 if (bp->bio_resid != 0) {
1654 /*
1655 * Short transfer ???
1656 * XXX: not sure this is correct for partial
1657 * transfers at EOM
1658 */
1659 bp->bio_flags |= BIO_ERROR;
1660 }
1661 }
1662
1663 /*
1664 * Block out any asyncronous callbacks
1665 * while we touch the pending ccb list.
1666 */
1667 oldspl = splcam();
1668 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1669 softc->outstanding_cmds--;
1670 splx(oldspl);
1671
1672 if (softc->flags & CD_FLAG_CHANGER)
1673 cdchangerschedule(softc);
1674
1675 biofinish(bp, NULL, 0);
1676 break;
1677 }
1678 case CD_CCB_PROBE:
1679 {
1680 struct scsi_read_capacity_data *rdcap;
1681 char announce_buf[120]; /*
1682 * Currently (9/30/97) the
1683 * longest possible announce
1684 * buffer is 108 bytes, for the
1685 * first error case below.
1686 * That is 39 bytes for the
1687 * basic string, 16 bytes for the
1688 * biggest sense key (hardware
1689 * error), 52 bytes for the
1690 * text of the largest sense
1691 * qualifier valid for a CDROM,
1692 * (0x72, 0x03 or 0x04,
1693 * 0x03), and one byte for the
1694 * null terminating character.
1695 * To allow for longer strings,
1696 * the announce buffer is 120
1697 * bytes.
1698 */
1699 struct cd_params *cdp;
1700
1701 cdp = &softc->params;
1702
1703 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr;
1704
1705 cdp->disksize = scsi_4btoul (rdcap->addr) + 1;
1706 cdp->blksize = scsi_4btoul (rdcap->length);
1707
1708 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1709
1710 snprintf(announce_buf, sizeof(announce_buf),
1711 "cd present [%lu x %lu byte records]",
1712 cdp->disksize, (u_long)cdp->blksize);
1713
1714 } else {
1715 int error;
1716 /*
1717 * Retry any UNIT ATTENTION type errors. They
1718 * are expected at boot.
1719 */
1720 error = cderror(done_ccb, CAM_RETRY_SELTO,
1721 SF_RETRY_UA | SF_NO_PRINT);
1722 if (error == ERESTART) {
1723 /*
1724 * A retry was scheuled, so
1725 * just return.
1726 */
1727 return;
1728 } else if (error != 0) {
1729
1730 struct scsi_sense_data *sense;
1731 int asc, ascq;
1732 int sense_key, error_code;
1733 int have_sense;
1734 cam_status status;
1735 struct ccb_getdev cgd;
1736
1737 /* Don't wedge this device's queue */
1738 cam_release_devq(done_ccb->ccb_h.path,
1739 /*relsim_flags*/0,
1740 /*reduction*/0,
1741 /*timeout*/0,
1742 /*getcount_only*/0);
1743
1744 status = done_ccb->ccb_h.status;
1745
1746 xpt_setup_ccb(&cgd.ccb_h,
1747 done_ccb->ccb_h.path,
1748 /* priority */ 1);
1749 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
1750 xpt_action((union ccb *)&cgd);
1751
1752 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
1753 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
1754 || ((status & CAM_AUTOSNS_VALID) == 0))
1755 have_sense = FALSE;
1756 else
1757 have_sense = TRUE;
1758
1759 if (have_sense) {
1760 sense = &csio->sense_data;
1761 scsi_extract_sense(sense, &error_code,
1762 &sense_key,
1763 &asc, &ascq);
1764 }
1765 /*
1766 * Attach to anything that claims to be a
1767 * CDROM or WORM device, as long as it
1768 * doesn't return a "Logical unit not
1769 * supported" (0x25) error.
1770 */
1771 if ((have_sense) && (asc != 0x25)
1772 && (error_code == SSD_CURRENT_ERROR)) {
1773 const char *sense_key_desc;
1774 const char *asc_desc;
1775
1776 scsi_sense_desc(sense_key, asc, ascq,
1777 &cgd.inq_data,
1778 &sense_key_desc,
1779 &asc_desc);
1780 snprintf(announce_buf,
1781 sizeof(announce_buf),
1782 "Attempt to query device "
1783 "size failed: %s, %s",
1784 sense_key_desc,
1785 asc_desc);
1786 } else if ((have_sense == 0)
1787 && ((status & CAM_STATUS_MASK) ==
1788 CAM_SCSI_STATUS_ERROR)
1789 && (csio->scsi_status ==
1790 SCSI_STATUS_BUSY)) {
1791 snprintf(announce_buf,
1792 sizeof(announce_buf),
1793 "Attempt to query device "
1794 "size failed: SCSI Status: %s",
1795 scsi_status_string(csio));
1796 } else if (SID_TYPE(&cgd.inq_data) == T_CDROM) {
1797 /*
1798 * We only print out an error for
1799 * CDROM type devices. For WORM
1800 * devices, we don't print out an
1801 * error since a few WORM devices
1802 * don't support CDROM commands.
1803 * If we have sense information, go
1804 * ahead and print it out.
1805 * Otherwise, just say that we
1806 * couldn't attach.
1807 */
1808
1809 /*
1810 * Just print out the error, not
1811 * the full probe message, when we
1812 * don't attach.
1813 */
1814 if (have_sense)
1815 scsi_sense_print(
1816 &done_ccb->csio);
1817 else {
1818 xpt_print_path(periph->path);
1819 printf("got CAM status %#x\n",
1820 done_ccb->ccb_h.status);
1821 }
1822 xpt_print_path(periph->path);
1823 printf("fatal error, failed"
1824 " to attach to device\n");
1825
1826 /*
1827 * Invalidate this peripheral.
1828 */
1829 cam_periph_invalidate(periph);
1830
1831 announce_buf[0] = '\0';
1832 } else {
1833
1834 /*
1835 * Invalidate this peripheral.
1836 */
1837 cam_periph_invalidate(periph);
1838 announce_buf[0] = '\0';
1839 }
1840 }
1841 }
1842 free(rdcap, M_SCSICD);
1843 if (announce_buf[0] != '\0') {
1844 xpt_announce_periph(periph, announce_buf);
1845 if (softc->flags & CD_FLAG_CHANGER)
1846 cdchangerschedule(softc);
1847 /*
1848 * Create our sysctl variables, now that we know
1849 * we have successfully attached.
1850 */
1851 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task);
1852 }
1853 softc->state = CD_STATE_NORMAL;
1854 /*
1855 * Since our peripheral may be invalidated by an error
1856 * above or an external event, we must release our CCB
1857 * before releasing the probe lock on the peripheral.
1858 * The peripheral will only go away once the last lock
1859 * is removed, and we need it around for the CCB release
1860 * operation.
1861 */
1862 xpt_release_ccb(done_ccb);
1863 cam_periph_unlock(periph);
1864 return;
1865 }
1866 case CD_CCB_WAITING:
1867 {
1868 /* Caller will release the CCB */
1869 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
1870 ("trying to wakeup ccbwait\n"));
1871
1872 wakeup(&done_ccb->ccb_h.cbfcnp);
1873 return;
1874 }
1875 default:
1876 break;
1877 }
1878 xpt_release_ccb(done_ccb);
1879 }
1880
1881 static union cd_pages *
1882 cdgetpage(struct cd_mode_params *mode_params)
1883 {
1884 union cd_pages *page;
1885
1886 if (mode_params->cdb_size == 10)
1887 page = (union cd_pages *)find_mode_page_10(
1888 (struct scsi_mode_header_10 *)mode_params->mode_buf);
1889 else
1890 page = (union cd_pages *)find_mode_page_6(
1891 (struct scsi_mode_header_6 *)mode_params->mode_buf);
1892
1893 return (page);
1894 }
1895
1896 static int
1897 cdgetpagesize(int page_num)
1898 {
1899 int i;
1900
1901 for (i = 0; i < (sizeof(cd_page_size_table)/
1902 sizeof(cd_page_size_table[0])); i++) {
1903 if (cd_page_size_table[i].page == page_num)
1904 return (cd_page_size_table[i].page_size);
1905 }
1906
1907 return (-1);
1908 }
1909
1910 static int
1911 cdioctl(struct disk *dp, u_long cmd, void *addr, int flag, struct thread *td)
1912 {
1913
1914 struct cam_periph *periph;
1915 struct cd_softc *softc;
1916 int error, nocopyout;
1917
1918 periph = (struct cam_periph *)dp->d_drv1;
1919 if (periph == NULL)
1920 return(ENXIO);
1921
1922 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdioctl\n"));
1923
1924 softc = (struct cd_softc *)periph->softc;
1925
1926 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
1927 ("trying to do ioctl %#lx\n", cmd));
1928
1929 error = cam_periph_lock(periph, PRIBIO | PCATCH);
1930
1931 if (error != 0)
1932 return(error);
1933 /*
1934 * If we don't have media loaded, check for it. If still don't
1935 * have media loaded, we can only do a load or eject.
1936 *
1937 * We only care whether media is loaded if this is a cd-specific ioctl
1938 * (thus the IOCGROUP check below). Note that this will break if
1939 * anyone adds any ioctls into the switch statement below that don't
1940 * have their ioctl group set to 'c'.
1941 */
1942 if (((softc->flags & CD_FLAG_VALID_MEDIA) == 0)
1943 && ((cmd != CDIOCCLOSE)
1944 && (cmd != CDIOCEJECT))
1945 && (IOCGROUP(cmd) == 'c')) {
1946 error = cdcheckmedia(periph);
1947 if (error != 0) {
1948 cam_periph_unlock(periph);
1949 return (error);
1950 }
1951 }
1952
1953 nocopyout = 0;
1954 switch (cmd) {
1955
1956 case CDIOCPLAYTRACKS:
1957 {
1958 struct ioc_play_track *args
1959 = (struct ioc_play_track *) addr;
1960 struct cd_mode_params params;
1961 union cd_pages *page;
1962
1963 params.alloc_len = sizeof(union cd_mode_data_6_10);
1964 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
1965 M_WAITOK | M_ZERO);
1966
1967 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1968 ("trying to do CDIOCPLAYTRACKS\n"));
1969
1970 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
1971 if (error) {
1972 free(params.mode_buf, M_SCSICD);
1973 break;
1974 }
1975 page = cdgetpage(¶ms);
1976
1977 page->audio.flags &= ~CD_PA_SOTC;
1978 page->audio.flags |= CD_PA_IMMED;
1979 error = cdsetmode(periph, ¶ms);
1980 free(params.mode_buf, M_SCSICD);
1981 if (error)
1982 break;
1983
1984 /*
1985 * This was originally implemented with the PLAY
1986 * AUDIO TRACK INDEX command, but that command was
1987 * deprecated after SCSI-2. Most (all?) SCSI CDROM
1988 * drives support it but ATAPI and ATAPI-derivative
1989 * drives don't seem to support it. So we keep a
1990 * cache of the table of contents and translate
1991 * track numbers to MSF format.
1992 */
1993 if (softc->flags & CD_FLAG_VALID_TOC) {
1994 union msf_lba *sentry, *eentry;
1995 int st, et;
1996
1997 if (args->end_track <
1998 softc->toc.header.ending_track + 1)
1999 args->end_track++;
2000 if (args->end_track >
2001 softc->toc.header.ending_track + 1)
2002 args->end_track =
2003 softc->toc.header.ending_track + 1;
2004 st = args->start_track -
2005 softc->toc.header.starting_track;
2006 et = args->end_track -
2007 softc->toc.header.starting_track;
2008 if ((st < 0)
2009 || (et < 0)
2010 || (st > (softc->toc.header.ending_track -
2011 softc->toc.header.starting_track))) {
2012 error = EINVAL;
2013 break;
2014 }
2015 sentry = &softc->toc.entries[st].addr;
2016 eentry = &softc->toc.entries[et].addr;
2017 error = cdplaymsf(periph,
2018 sentry->msf.minute,
2019 sentry->msf.second,
2020 sentry->msf.frame,
2021 eentry->msf.minute,
2022 eentry->msf.second,
2023 eentry->msf.frame);
2024 } else {
2025 /*
2026 * If we don't have a valid TOC, try the
2027 * play track index command. It is part of
2028 * the SCSI-2 spec, but was removed in the
2029 * MMC specs. ATAPI and ATAPI-derived
2030 * drives don't support it.
2031 */
2032 if (softc->quirks & CD_Q_BCD_TRACKS) {
2033 args->start_track =
2034 bin2bcd(args->start_track);
2035 args->end_track =
2036 bin2bcd(args->end_track);
2037 }
2038 error = cdplaytracks(periph,
2039 args->start_track,
2040 args->start_index,
2041 args->end_track,
2042 args->end_index);
2043 }
2044 }
2045 break;
2046 case CDIOCPLAYMSF:
2047 {
2048 struct ioc_play_msf *args
2049 = (struct ioc_play_msf *) addr;
2050 struct cd_mode_params params;
2051 union cd_pages *page;
2052
2053 params.alloc_len = sizeof(union cd_mode_data_6_10);
2054 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2055 M_WAITOK | M_ZERO);
2056
2057 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2058 ("trying to do CDIOCPLAYMSF\n"));
2059
2060 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2061 if (error) {
2062 free(params.mode_buf, M_SCSICD);
2063 break;
2064 }
2065 page = cdgetpage(¶ms);
2066
2067 page->audio.flags &= ~CD_PA_SOTC;
2068 page->audio.flags |= CD_PA_IMMED;
2069 error = cdsetmode(periph, ¶ms);
2070 free(params.mode_buf, M_SCSICD);
2071 if (error)
2072 break;
2073 error = cdplaymsf(periph,
2074 args->start_m,
2075 args->start_s,
2076 args->start_f,
2077 args->end_m,
2078 args->end_s,
2079 args->end_f);
2080 }
2081 break;
2082 case CDIOCPLAYBLOCKS:
2083 {
2084 struct ioc_play_blocks *args
2085 = (struct ioc_play_blocks *) addr;
2086 struct cd_mode_params params;
2087 union cd_pages *page;
2088
2089 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2090 ("trying to do CDIOCPLAYBLOCKS\n"));
2091
2092 params.alloc_len = sizeof(union cd_mode_data_6_10);
2093 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2094 M_WAITOK | M_ZERO);
2095
2096 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2097 if (error) {
2098 free(params.mode_buf, M_SCSICD);
2099 break;
2100 }
2101 page = cdgetpage(¶ms);
2102
2103 page->audio.flags &= ~CD_PA_SOTC;
2104 page->audio.flags |= CD_PA_IMMED;
2105 error = cdsetmode(periph, ¶ms);
2106 free(params.mode_buf, M_SCSICD);
2107 if (error)
2108 break;
2109 error = cdplay(periph, args->blk, args->len);
2110 }
2111 break;
2112 case CDIOCREADSUBCHANNEL_SYSSPACE:
2113 nocopyout = 1;
2114 /* Fallthrough */
2115 case CDIOCREADSUBCHANNEL:
2116 {
2117 struct ioc_read_subchannel *args
2118 = (struct ioc_read_subchannel *) addr;
2119 struct cd_sub_channel_info *data;
2120 u_int32_t len = args->data_len;
2121
2122 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2123 ("trying to do CDIOCREADSUBCHANNEL\n"));
2124
2125 data = malloc(sizeof(struct cd_sub_channel_info),
2126 M_SCSICD, M_WAITOK);
2127
2128 if ((len > sizeof(struct cd_sub_channel_info)) ||
2129 (len < sizeof(struct cd_sub_channel_header))) {
2130 printf(
2131 "scsi_cd: cdioctl: "
2132 "cdioreadsubchannel: error, len=%d\n",
2133 len);
2134 error = EINVAL;
2135 free(data, M_SCSICD);
2136 break;
2137 }
2138
2139 if (softc->quirks & CD_Q_BCD_TRACKS)
2140 args->track = bin2bcd(args->track);
2141
2142 error = cdreadsubchannel(periph, args->address_format,
2143 args->data_format, args->track, data, len);
2144
2145 if (error) {
2146 free(data, M_SCSICD);
2147 break;
2148 }
2149 if (softc->quirks & CD_Q_BCD_TRACKS)
2150 data->what.track_info.track_number =
2151 bcd2bin(data->what.track_info.track_number);
2152 len = min(len, ((data->header.data_len[0] << 8) +
2153 data->header.data_len[1] +
2154 sizeof(struct cd_sub_channel_header)));
2155 if (nocopyout == 0) {
2156 if (copyout(data, args->data, len) != 0) {
2157 error = EFAULT;
2158 }
2159 } else {
2160 bcopy(data, args->data, len);
2161 }
2162 free(data, M_SCSICD);
2163 }
2164 break;
2165
2166 case CDIOREADTOCHEADER:
2167 {
2168 struct ioc_toc_header *th;
2169
2170 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2171 ("trying to do CDIOREADTOCHEADER\n"));
2172
2173 th = malloc(sizeof(struct ioc_toc_header), M_SCSICD,
2174 M_WAITOK);
2175 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2176 sizeof (*th), /*sense_flags*/0);
2177 if (error) {
2178 free(th, M_SCSICD);
2179 break;
2180 }
2181 if (softc->quirks & CD_Q_BCD_TRACKS) {
2182 /* we are going to have to convert the BCD
2183 * encoding on the cd to what is expected
2184 */
2185 th->starting_track =
2186 bcd2bin(th->starting_track);
2187 th->ending_track = bcd2bin(th->ending_track);
2188 }
2189 th->len = ntohs(th->len);
2190 bcopy(th, addr, sizeof(*th));
2191 free(th, M_SCSICD);
2192 }
2193 break;
2194 case CDIOREADTOCENTRYS:
2195 {
2196 struct cd_tocdata *data;
2197 struct cd_toc_single *lead;
2198 struct ioc_read_toc_entry *te =
2199 (struct ioc_read_toc_entry *) addr;
2200 struct ioc_toc_header *th;
2201 u_int32_t len, readlen, idx, num;
2202 u_int32_t starting_track = te->starting_track;
2203
2204 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2205 ("trying to do CDIOREADTOCENTRYS\n"));
2206
2207 data = malloc(sizeof(*data), M_SCSICD, M_WAITOK);
2208 lead = malloc(sizeof(*lead), M_SCSICD, M_WAITOK);
2209
2210 if (te->data_len < sizeof(struct cd_toc_entry)
2211 || (te->data_len % sizeof(struct cd_toc_entry)) != 0
2212 || (te->address_format != CD_MSF_FORMAT
2213 && te->address_format != CD_LBA_FORMAT)) {
2214 error = EINVAL;
2215 printf("scsi_cd: error in readtocentries, "
2216 "returning EINVAL\n");
2217 free(data, M_SCSICD);
2218 free(lead, M_SCSICD);
2219 break;
2220 }
2221
2222 th = &data->header;
2223 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2224 sizeof (*th), /*sense_flags*/0);
2225 if (error) {
2226 free(data, M_SCSICD);
2227 free(lead, M_SCSICD);
2228 break;
2229 }
2230
2231 if (softc->quirks & CD_Q_BCD_TRACKS) {
2232 /* we are going to have to convert the BCD
2233 * encoding on the cd to what is expected
2234 */
2235 th->starting_track =
2236 bcd2bin(th->starting_track);
2237 th->ending_track = bcd2bin(th->ending_track);
2238 }
2239
2240 if (starting_track == 0)
2241 starting_track = th->starting_track;
2242 else if (starting_track == LEADOUT)
2243 starting_track = th->ending_track + 1;
2244 else if (starting_track < th->starting_track ||
2245 starting_track > th->ending_track + 1) {
2246 printf("scsi_cd: error in readtocentries, "
2247 "returning EINVAL\n");
2248 free(data, M_SCSICD);
2249 free(lead, M_SCSICD);
2250 error = EINVAL;
2251 break;
2252 }
2253
2254 /* calculate reading length without leadout entry */
2255 readlen = (th->ending_track - starting_track + 1) *
2256 sizeof(struct cd_toc_entry);
2257
2258 /* and with leadout entry */
2259 len = readlen + sizeof(struct cd_toc_entry);
2260 if (te->data_len < len) {
2261 len = te->data_len;
2262 if (readlen > len)
2263 readlen = len;
2264 }
2265 if (len > sizeof(data->entries)) {
2266 printf("scsi_cd: error in readtocentries, "
2267 "returning EINVAL\n");
2268 error = EINVAL;
2269 free(data, M_SCSICD);
2270 free(lead, M_SCSICD);
2271 break;
2272 }
2273 num = len / sizeof(struct cd_toc_entry);
2274
2275 if (readlen > 0) {
2276 error = cdreadtoc(periph, te->address_format,
2277 starting_track,
2278 (u_int8_t *)data,
2279 readlen + sizeof (*th),
2280 /*sense_flags*/0);
2281 if (error) {
2282 free(data, M_SCSICD);
2283 free(lead, M_SCSICD);
2284 break;
2285 }
2286 }
2287
2288 /* make leadout entry if needed */
2289 idx = starting_track + num - 1;
2290 if (softc->quirks & CD_Q_BCD_TRACKS)
2291 th->ending_track = bcd2bin(th->ending_track);
2292 if (idx == th->ending_track + 1) {
2293 error = cdreadtoc(periph, te->address_format,
2294 LEADOUT, (u_int8_t *)lead,
2295 sizeof(*lead),
2296 /*sense_flags*/0);
2297 if (error) {
2298 free(data, M_SCSICD);
2299 free(lead, M_SCSICD);
2300 break;
2301 }
2302 data->entries[idx - starting_track] =
2303 lead->entry;
2304 }
2305 if (softc->quirks & CD_Q_BCD_TRACKS) {
2306 for (idx = 0; idx < num - 1; idx++) {
2307 data->entries[idx].track =
2308 bcd2bin(data->entries[idx].track);
2309 }
2310 }
2311
2312 error = copyout(data->entries, te->data, len);
2313 free(data, M_SCSICD);
2314 free(lead, M_SCSICD);
2315 }
2316 break;
2317 case CDIOREADTOCENTRY:
2318 {
2319 struct cd_toc_single *data;
2320 struct ioc_read_toc_single_entry *te =
2321 (struct ioc_read_toc_single_entry *) addr;
2322 struct ioc_toc_header *th;
2323 u_int32_t track;
2324
2325 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2326 ("trying to do CDIOREADTOCENTRY\n"));
2327
2328 data = malloc(sizeof(*data), M_SCSICD, M_WAITOK);
2329
2330 if (te->address_format != CD_MSF_FORMAT
2331 && te->address_format != CD_LBA_FORMAT) {
2332 printf("error in readtocentry, "
2333 " returning EINVAL\n");
2334 free(data, M_SCSICD);
2335 error = EINVAL;
2336 break;
2337 }
2338
2339 th = &data->header;
2340 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2341 sizeof (*th), /*sense_flags*/0);
2342 if (error) {
2343 free(data, M_SCSICD);
2344 break;
2345 }
2346
2347 if (softc->quirks & CD_Q_BCD_TRACKS) {
2348 /* we are going to have to convert the BCD
2349 * encoding on the cd to what is expected
2350 */
2351 th->starting_track =
2352 bcd2bin(th->starting_track);
2353 th->ending_track = bcd2bin(th->ending_track);
2354 }
2355 track = te->track;
2356 if (track == 0)
2357 track = th->starting_track;
2358 else if (track == LEADOUT)
2359 /* OK */;
2360 else if (track < th->starting_track ||
2361 track > th->ending_track + 1) {
2362 printf("error in readtocentry, "
2363 " returning EINVAL\n");
2364 free(data, M_SCSICD);
2365 error = EINVAL;
2366 break;
2367 }
2368
2369 error = cdreadtoc(periph, te->address_format, track,
2370 (u_int8_t *)data, sizeof(*data),
2371 /*sense_flags*/0);
2372 if (error) {
2373 free(data, M_SCSICD);
2374 break;
2375 }
2376
2377 if (softc->quirks & CD_Q_BCD_TRACKS)
2378 data->entry.track = bcd2bin(data->entry.track);
2379 bcopy(&data->entry, &te->entry,
2380 sizeof(struct cd_toc_entry));
2381 free(data, M_SCSICD);
2382 }
2383 break;
2384 case CDIOCSETPATCH:
2385 {
2386 struct ioc_patch *arg = (struct ioc_patch *)addr;
2387 struct cd_mode_params params;
2388 union cd_pages *page;
2389
2390 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2391 ("trying to do CDIOCSETPATCH\n"));
2392
2393 params.alloc_len = sizeof(union cd_mode_data_6_10);
2394 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2395 M_WAITOK | M_ZERO);
2396 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2397 if (error) {
2398 free(params.mode_buf, M_SCSICD);
2399 break;
2400 }
2401 page = cdgetpage(¶ms);
2402
2403 page->audio.port[LEFT_PORT].channels =
2404 arg->patch[0];
2405 page->audio.port[RIGHT_PORT].channels =
2406 arg->patch[1];
2407 page->audio.port[2].channels = arg->patch[2];
2408 page->audio.port[3].channels = arg->patch[3];
2409 error = cdsetmode(periph, ¶ms);
2410 free(params.mode_buf, M_SCSICD);
2411 }
2412 break;
2413 case CDIOCGETVOL:
2414 {
2415 struct ioc_vol *arg = (struct ioc_vol *) addr;
2416 struct cd_mode_params params;
2417 union cd_pages *page;
2418
2419 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2420 ("trying to do CDIOCGETVOL\n"));
2421
2422 params.alloc_len = sizeof(union cd_mode_data_6_10);
2423 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2424 M_WAITOK | M_ZERO);
2425 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2426 if (error) {
2427 free(params.mode_buf, M_SCSICD);
2428 break;
2429 }
2430 page = cdgetpage(¶ms);
2431
2432 arg->vol[LEFT_PORT] =
2433 page->audio.port[LEFT_PORT].volume;
2434 arg->vol[RIGHT_PORT] =
2435 page->audio.port[RIGHT_PORT].volume;
2436 arg->vol[2] = page->audio.port[2].volume;
2437 arg->vol[3] = page->audio.port[3].volume;
2438 free(params.mode_buf, M_SCSICD);
2439 }
2440 break;
2441 case CDIOCSETVOL:
2442 {
2443 struct ioc_vol *arg = (struct ioc_vol *) addr;
2444 struct cd_mode_params params;
2445 union cd_pages *page;
2446
2447 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2448 ("trying to do CDIOCSETVOL\n"));
2449
2450 params.alloc_len = sizeof(union cd_mode_data_6_10);
2451 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2452 M_WAITOK | M_ZERO);
2453 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2454 if (error) {
2455 free(params.mode_buf, M_SCSICD);
2456 break;
2457 }
2458 page = cdgetpage(¶ms);
2459
2460 page->audio.port[LEFT_PORT].channels = CHANNEL_0;
2461 page->audio.port[LEFT_PORT].volume =
2462 arg->vol[LEFT_PORT];
2463 page->audio.port[RIGHT_PORT].channels = CHANNEL_1;
2464 page->audio.port[RIGHT_PORT].volume =
2465 arg->vol[RIGHT_PORT];
2466 page->audio.port[2].volume = arg->vol[2];
2467 page->audio.port[3].volume = arg->vol[3];
2468 error = cdsetmode(periph, ¶ms);
2469 free(params.mode_buf, M_SCSICD);
2470 }
2471 break;
2472 case CDIOCSETMONO:
2473 {
2474 struct cd_mode_params params;
2475 union cd_pages *page;
2476
2477 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2478 ("trying to do CDIOCSETMONO\n"));
2479
2480 params.alloc_len = sizeof(union cd_mode_data_6_10);
2481 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2482 M_WAITOK | M_ZERO);
2483 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2484 if (error) {
2485 free(params.mode_buf, M_SCSICD);
2486 break;
2487 }
2488 page = cdgetpage(¶ms);
2489
2490 page->audio.port[LEFT_PORT].channels =
2491 LEFT_CHANNEL | RIGHT_CHANNEL;
2492 page->audio.port[RIGHT_PORT].channels =
2493 LEFT_CHANNEL | RIGHT_CHANNEL;
2494 page->audio.port[2].channels = 0;
2495 page->audio.port[3].channels = 0;
2496 error = cdsetmode(periph, ¶ms);
2497 free(params.mode_buf, M_SCSICD);
2498 }
2499 break;
2500 case CDIOCSETSTEREO:
2501 {
2502 struct cd_mode_params params;
2503 union cd_pages *page;
2504
2505 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2506 ("trying to do CDIOCSETSTEREO\n"));
2507
2508 params.alloc_len = sizeof(union cd_mode_data_6_10);
2509 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2510 M_WAITOK | M_ZERO);
2511 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2512 if (error) {
2513 free(params.mode_buf, M_SCSICD);
2514 break;
2515 }
2516 page = cdgetpage(¶ms);
2517
2518 page->audio.port[LEFT_PORT].channels =
2519 LEFT_CHANNEL;
2520 page->audio.port[RIGHT_PORT].channels =
2521 RIGHT_CHANNEL;
2522 page->audio.port[2].channels = 0;
2523 page->audio.port[3].channels = 0;
2524 error = cdsetmode(periph, ¶ms);
2525 free(params.mode_buf, M_SCSICD);
2526 }
2527 break;
2528 case CDIOCSETMUTE:
2529 {
2530 struct cd_mode_params params;
2531 union cd_pages *page;
2532
2533 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2534 ("trying to do CDIOCSETMUTE\n"));
2535
2536 params.alloc_len = sizeof(union cd_mode_data_6_10);
2537 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2538 M_WAITOK | M_ZERO);
2539 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2540 if (error) {
2541 free(¶ms, M_SCSICD);
2542 break;
2543 }
2544 page = cdgetpage(¶ms);
2545
2546 page->audio.port[LEFT_PORT].channels = 0;
2547 page->audio.port[RIGHT_PORT].channels = 0;
2548 page->audio.port[2].channels = 0;
2549 page->audio.port[3].channels = 0;
2550 error = cdsetmode(periph, ¶ms);
2551 free(params.mode_buf, M_SCSICD);
2552 }
2553 break;
2554 case CDIOCSETLEFT:
2555 {
2556 struct cd_mode_params params;
2557 union cd_pages *page;
2558
2559 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2560 ("trying to do CDIOCSETLEFT\n"));
2561
2562 params.alloc_len = sizeof(union cd_mode_data_6_10);
2563 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2564 M_WAITOK | M_ZERO);
2565
2566 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2567 if (error) {
2568 free(params.mode_buf, M_SCSICD);
2569 break;
2570 }
2571 page = cdgetpage(¶ms);
2572
2573 page->audio.port[LEFT_PORT].channels = LEFT_CHANNEL;
2574 page->audio.port[RIGHT_PORT].channels = LEFT_CHANNEL;
2575 page->audio.port[2].channels = 0;
2576 page->audio.port[3].channels = 0;
2577 error = cdsetmode(periph, ¶ms);
2578 free(params.mode_buf, M_SCSICD);
2579 }
2580 break;
2581 case CDIOCSETRIGHT:
2582 {
2583 struct cd_mode_params params;
2584 union cd_pages *page;
2585
2586 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2587 ("trying to do CDIOCSETRIGHT\n"));
2588
2589 params.alloc_len = sizeof(union cd_mode_data_6_10);
2590 params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2591 M_WAITOK | M_ZERO);
2592
2593 error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2594 if (error) {
2595 free(params.mode_buf, M_SCSICD);
2596 break;
2597 }
2598 page = cdgetpage(¶ms);
2599
2600 page->audio.port[LEFT_PORT].channels = RIGHT_CHANNEL;
2601 page->audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL;
2602 page->audio.port[2].channels = 0;
2603 page->audio.port[3].channels = 0;
2604 error = cdsetmode(periph, ¶ms);
2605 free(params.mode_buf, M_SCSICD);
2606 }
2607 break;
2608 case CDIOCRESUME:
2609 error = cdpause(periph, 1);
2610 break;
2611 case CDIOCPAUSE:
2612 error = cdpause(periph, 0);
2613 break;
2614 case CDIOCSTART:
2615 error = cdstartunit(periph, 0);
2616 break;
2617 case CDIOCCLOSE:
2618 error = cdstartunit(periph, 1);
2619 break;
2620 case CDIOCSTOP:
2621 error = cdstopunit(periph, 0);
2622 break;
2623 case CDIOCEJECT:
2624 error = cdstopunit(periph, 1);
2625 break;
2626 case CDIOCALLOW:
2627 cdprevent(periph, PR_ALLOW);
2628 break;
2629 case CDIOCPREVENT:
2630 cdprevent(periph, PR_PREVENT);
2631 break;
2632 case CDIOCSETDEBUG:
2633 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */
2634 error = ENOTTY;
2635 break;
2636 case CDIOCCLRDEBUG:
2637 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */
2638 error = ENOTTY;
2639 break;
2640 case CDIOCRESET:
2641 /* return (cd_reset(periph)); */
2642 error = ENOTTY;
2643 break;
2644 case CDRIOCREADSPEED:
2645 error = cdsetspeed(periph, *(u_int32_t *)addr, CDR_MAX_SPEED);
2646 break;
2647 case CDRIOCWRITESPEED:
2648 error = cdsetspeed(periph, CDR_MAX_SPEED, *(u_int32_t *)addr);
2649 break;
2650 case DVDIOCSENDKEY:
2651 case DVDIOCREPORTKEY: {
2652 struct dvd_authinfo *authinfo;
2653
2654 authinfo = (struct dvd_authinfo *)addr;
2655
2656 if (cmd == DVDIOCREPORTKEY)
2657 error = cdreportkey(periph, authinfo);
2658 else
2659 error = cdsendkey(periph, authinfo);
2660 break;
2661 }
2662 case DVDIOCREADSTRUCTURE: {
2663 struct dvd_struct *dvdstruct;
2664
2665 dvdstruct = (struct dvd_struct *)addr;
2666
2667 error = cdreaddvdstructure(periph, dvdstruct);
2668
2669 break;
2670 }
2671 default:
2672 error = cam_periph_ioctl(periph, cmd, addr, cderror);
2673 break;
2674 }
2675
2676 cam_periph_unlock(periph);
2677
2678 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n"));
2679 if (error && bootverbose) {
2680 printf("scsi_cd.c::ioctl cmd=%08lx error=%d\n", cmd, error);
2681 }
2682
2683 return (error);
2684 }
2685
2686 static void
2687 cdprevent(struct cam_periph *periph, int action)
2688 {
2689 union ccb *ccb;
2690 struct cd_softc *softc;
2691 int error;
2692
2693 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n"));
2694
2695 softc = (struct cd_softc *)periph->softc;
2696
2697 if (((action == PR_ALLOW)
2698 && (softc->flags & CD_FLAG_DISC_LOCKED) == 0)
2699 || ((action == PR_PREVENT)
2700 && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) {
2701 return;
2702 }
2703
2704 ccb = cdgetccb(periph, /* priority */ 1);
2705
2706 scsi_prevent(&ccb->csio,
2707 /*retries*/ 1,
2708 cddone,
2709 MSG_SIMPLE_Q_TAG,
2710 action,
2711 SSD_FULL_SIZE,
2712 /* timeout */60000);
2713
2714 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
2715 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT);
2716
2717 xpt_release_ccb(ccb);
2718
2719 if (error == 0) {
2720 if (action == PR_ALLOW)
2721 softc->flags &= ~CD_FLAG_DISC_LOCKED;
2722 else
2723 softc->flags |= CD_FLAG_DISC_LOCKED;
2724 }
2725 }
2726
2727 /*
2728 * XXX: the disk media and sector size is only really able to change
2729 * XXX: while the device is closed.
2730 */
2731 static int
2732 cdcheckmedia(struct cam_periph *periph)
2733 {
2734 struct cd_softc *softc;
2735 struct ioc_toc_header *toch;
2736 struct cd_toc_single leadout;
2737 u_int32_t size, toclen;
2738 int error, num_entries, cdindex;
2739
2740 softc = (struct cd_softc *)periph->softc;
2741
2742 cdprevent(periph, PR_PREVENT);
2743 softc->disk->d_maxsize = DFLTPHYS;
2744 softc->disk->d_sectorsize = 2048;
2745 softc->disk->d_mediasize = 0;
2746
2747 /*
2748 * Get the disc size and block size. If we can't get it, we don't
2749 * have media, most likely.
2750 */
2751 if ((error = cdsize(periph, &size)) != 0) {
2752 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC);
2753 cdprevent(periph, PR_ALLOW);
2754 return (error);
2755 } else
2756 softc->flags |= CD_FLAG_VALID_MEDIA;
2757
2758 /*
2759 * Now we check the table of contents. This (currently) is only
2760 * used for the CDIOCPLAYTRACKS ioctl. It may be used later to do
2761 * things like present a separate entry in /dev for each track,
2762 * like that acd(4) driver does.
2763 */
2764 bzero(&softc->toc, sizeof(softc->toc));
2765 toch = &softc->toc.header;
2766 /*
2767 * We will get errors here for media that doesn't have a table of
2768 * contents. According to the MMC-3 spec: "When a Read TOC/PMA/ATIP
2769 * command is presented for a DDCD/CD-R/RW media, where the first TOC
2770 * has not been recorded (no complete session) and the Format codes
2771 * 0000b, 0001b, or 0010b are specified, this command shall be rejected
2772 * with an INVALID FIELD IN CDB. Devices that are not capable of
2773 * reading an incomplete session on DDC/CD-R/RW media shall report
2774 * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT."
2775 *
2776 * So this isn't fatal if we can't read the table of contents, it
2777 * just means that the user won't be able to issue the play tracks
2778 * ioctl, and likely lots of other stuff won't work either. They
2779 * need to burn the CD before we can do a whole lot with it. So
2780 * we don't print anything here if we get an error back.
2781 */
2782 error = cdreadtoc(periph, 0, 0, (u_int8_t *)toch, sizeof(*toch),
2783 SF_NO_PRINT);
2784 /*
2785 * Errors in reading the table of contents aren't fatal, we just
2786 * won't have a valid table of contents cached.
2787 */
2788 if (error != 0) {
2789 error = 0;
2790 bzero(&softc->toc, sizeof(softc->toc));
2791 goto bailout;
2792 }
2793
2794 if (softc->quirks & CD_Q_BCD_TRACKS) {
2795 toch->starting_track = bcd2bin(toch->starting_track);
2796 toch->ending_track = bcd2bin(toch->ending_track);
2797 }
2798
2799 /* Number of TOC entries, plus leadout */
2800 num_entries = (toch->ending_track - toch->starting_track) + 2;
2801
2802 if (num_entries <= 0)
2803 goto bailout;
2804
2805 toclen = num_entries * sizeof(struct cd_toc_entry);
2806
2807 error = cdreadtoc(periph, CD_MSF_FORMAT, toch->starting_track,
2808 (u_int8_t *)&softc->toc, toclen + sizeof(*toch),
2809 SF_NO_PRINT);
2810 if (error != 0) {
2811 error = 0;
2812 bzero(&softc->toc, sizeof(softc->toc));
2813 goto bailout;
2814 }
2815
2816 if (softc->quirks & CD_Q_BCD_TRACKS) {
2817 toch->starting_track = bcd2bin(toch->starting_track);
2818 toch->ending_track = bcd2bin(toch->ending_track);
2819 }
2820 /*
2821 * XXX KDM is this necessary? Probably only if the drive doesn't
2822 * return leadout information with the table of contents.
2823 */
2824 cdindex = toch->starting_track + num_entries -1;
2825 if (cdindex == toch->ending_track + 1) {
2826
2827 error = cdreadtoc(periph, CD_MSF_FORMAT, LEADOUT,
2828 (u_int8_t *)&leadout, sizeof(leadout),
2829 SF_NO_PRINT);
2830 if (error != 0) {
2831 error = 0;
2832 goto bailout;
2833 }
2834 softc->toc.entries[cdindex - toch->starting_track] =
2835 leadout.entry;
2836 }
2837 if (softc->quirks & CD_Q_BCD_TRACKS) {
2838 for (cdindex = 0; cdindex < num_entries - 1; cdindex++) {
2839 softc->toc.entries[cdindex].track =
2840 bcd2bin(softc->toc.entries[cdindex].track);
2841 }
2842 }
2843
2844 softc->flags |= CD_FLAG_VALID_TOC;
2845 softc->disk->d_maxsize = DFLTPHYS;
2846 softc->disk->d_sectorsize = softc->params.blksize;
2847 softc->disk->d_mediasize =
2848 (off_t)softc->params.blksize * softc->params.disksize;
2849
2850 bailout:
2851
2852 /*
2853 * We unconditionally (re)set the blocksize each time the
2854 * CD device is opened. This is because the CD can change,
2855 * and therefore the blocksize might change.
2856 * XXX problems here if some slice or partition is still
2857 * open with the old size?
2858 */
2859 if ((softc->disk->d_devstat->flags & DEVSTAT_BS_UNAVAILABLE) != 0)
2860 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
2861 softc->disk->d_devstat->block_size = softc->params.blksize;
2862
2863 return (error);
2864 }
2865
2866 static int
2867 cdsize(struct cam_periph *periph, u_int32_t *size)
2868 {
2869 struct cd_softc *softc;
2870 union ccb *ccb;
2871 struct scsi_read_capacity_data *rcap_buf;
2872 int error;
2873
2874 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n"));
2875
2876 softc = (struct cd_softc *)periph->softc;
2877
2878 ccb = cdgetccb(periph, /* priority */ 1);
2879
2880 rcap_buf = malloc(sizeof(struct scsi_read_capacity_data),
2881 M_SCSICD, M_WAITOK);
2882
2883 scsi_read_capacity(&ccb->csio,
2884 /*retries*/ 1,
2885 cddone,
2886 MSG_SIMPLE_Q_TAG,
2887 rcap_buf,
2888 SSD_FULL_SIZE,
2889 /* timeout */20000);
2890
2891 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
2892 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT);
2893
2894 xpt_release_ccb(ccb);
2895
2896 softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1;
2897 softc->params.blksize = scsi_4btoul(rcap_buf->length);
2898 /*
2899 * SCSI-3 mandates that the reported blocksize shall be 2048.
2900 * Older drives sometimes report funny values, trim it down to
2901 * 2048, or other parts of the kernel will get confused.
2902 *
2903 * XXX we leave drives alone that might report 512 bytes, as
2904 * well as drives reporting more weird sizes like perhaps 4K.
2905 */
2906 if (softc->params.blksize > 2048 && softc->params.blksize <= 2352)
2907 softc->params.blksize = 2048;
2908
2909 free(rcap_buf, M_SCSICD);
2910 *size = softc->params.disksize;
2911
2912 return (error);
2913
2914 }
2915
2916 static int
2917 cd6byteworkaround(union ccb *ccb)
2918 {
2919 u_int8_t *cdb;
2920 struct cam_periph *periph;
2921 struct cd_softc *softc;
2922 struct cd_mode_params *params;
2923 int frozen, found;
2924
2925 periph = xpt_path_periph(ccb->ccb_h.path);
2926 softc = (struct cd_softc *)periph->softc;
2927
2928 cdb = ccb->csio.cdb_io.cdb_bytes;
2929
2930 if ((ccb->ccb_h.flags & CAM_CDB_POINTER)
2931 || ((cdb[0] != MODE_SENSE_6)
2932 && (cdb[0] != MODE_SELECT_6)))
2933 return (0);
2934
2935 /*
2936 * Because there is no convenient place to stash the overall
2937 * cd_mode_params structure pointer, we have to grab it like this.
2938 * This means that ALL MODE_SENSE and MODE_SELECT requests in the
2939 * cd(4) driver MUST go through cdgetmode() and cdsetmode()!
2940 *
2941 * XXX It would be nice if, at some point, we could increase the
2942 * number of available peripheral private pointers. Both pointers
2943 * are currently used in most every peripheral driver.
2944 */
2945 found = 0;
2946
2947 STAILQ_FOREACH(params, &softc->mode_queue, links) {
2948 if (params->mode_buf == ccb->csio.data_ptr) {
2949 found = 1;
2950 break;
2951 }
2952 }
2953
2954 /*
2955 * This shouldn't happen. All mode sense and mode select
2956 * operations in the cd(4) driver MUST go through cdgetmode() and
2957 * cdsetmode()!
2958 */
2959 if (found == 0) {
2960 xpt_print_path(periph->path);
2961 printf("mode buffer not found in mode queue!\n");
2962 return (0);
2963 }
2964
2965 params->cdb_size = 10;
2966 softc->minimum_command_size = 10;
2967 xpt_print_path(ccb->ccb_h.path);
2968 printf("%s(6) failed, increasing minimum CDB size to 10 bytes\n",
2969 (cdb[0] == MODE_SENSE_6) ? "MODE_SENSE" : "MODE_SELECT");
2970
2971 if (cdb[0] == MODE_SENSE_6) {
2972 struct scsi_mode_sense_10 ms10;
2973 struct scsi_mode_sense_6 *ms6;
2974 int len;
2975
2976 ms6 = (struct scsi_mode_sense_6 *)cdb;
2977
2978 bzero(&ms10, sizeof(ms10));
2979 ms10.opcode = MODE_SENSE_10;
2980 ms10.byte2 = ms6->byte2;
2981 ms10.page = ms6->page;
2982
2983 /*
2984 * 10 byte mode header, block descriptor,
2985 * sizeof(union cd_pages)
2986 */
2987 len = sizeof(struct cd_mode_data_10);
2988 ccb->csio.dxfer_len = len;
2989
2990 scsi_ulto2b(len, ms10.length);
2991 ms10.control = ms6->control;
2992 bcopy(&ms10, cdb, 10);
2993 ccb->csio.cdb_len = 10;
2994 } else {
2995 struct scsi_mode_select_10 ms10;
2996 struct scsi_mode_select_6 *ms6;
2997 struct scsi_mode_header_6 *header6;
2998 struct scsi_mode_header_10 *header10;
2999 struct scsi_mode_page_header *page_header;
3000 int blk_desc_len, page_num, page_size, len;
3001
3002 ms6 = (struct scsi_mode_select_6 *)cdb;
3003
3004 bzero(&ms10, sizeof(ms10));
3005 ms10.opcode = MODE_SELECT_10;
3006 ms10.byte2 = ms6->byte2;
3007
3008 header6 = (struct scsi_mode_header_6 *)params->mode_buf;
3009 header10 = (struct scsi_mode_header_10 *)params->mode_buf;
3010
3011 page_header = find_mode_page_6(header6);
3012 page_num = page_header->page_code;
3013
3014 blk_desc_len = header6->blk_desc_len;
3015
3016 page_size = cdgetpagesize(page_num);
3017
3018 if (page_size != (page_header->page_length +
3019 sizeof(*page_header)))
3020 page_size = page_header->page_length +
3021 sizeof(*page_header);
3022
3023 len = sizeof(*header10) + blk_desc_len + page_size;
3024
3025 len = min(params->alloc_len, len);
3026
3027 /*
3028 * Since the 6 byte parameter header is shorter than the 10
3029 * byte parameter header, we need to copy the actual mode
3030 * page data, and the block descriptor, if any, so things wind
3031 * up in the right place. The regions will overlap, but
3032 * bcopy() does the right thing.
3033 */
3034 bcopy(params->mode_buf + sizeof(*header6),
3035 params->mode_buf + sizeof(*header10),
3036 len - sizeof(*header10));
3037
3038 /* Make sure these fields are set correctly. */
3039 scsi_ulto2b(0, header10->data_length);
3040 header10->medium_type = 0;
3041 scsi_ulto2b(blk_desc_len, header10->blk_desc_len);
3042
3043 ccb->csio.dxfer_len = len;
3044
3045 scsi_ulto2b(len, ms10.length);
3046 ms10.control = ms6->control;
3047 bcopy(&ms10, cdb, 10);
3048 ccb->csio.cdb_len = 10;
3049 }
3050
3051 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
3052 ccb->ccb_h.status = CAM_REQUEUE_REQ;
3053 xpt_action(ccb);
3054 if (frozen) {
3055 cam_release_devq(ccb->ccb_h.path,
3056 /*relsim_flags*/0,
3057 /*openings*/0,
3058 /*timeout*/0,
3059 /*getcount_only*/0);
3060 }
3061
3062 return (ERESTART);
3063 }
3064
3065 static int
3066 cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
3067 {
3068 struct cd_softc *softc;
3069 struct cam_periph *periph;
3070 int error;
3071
3072 periph = xpt_path_periph(ccb->ccb_h.path);
3073 softc = (struct cd_softc *)periph->softc;
3074
3075 error = 0;
3076
3077 /*
3078 * We use a status of CAM_REQ_INVALID as shorthand -- if a 6 byte
3079 * CDB comes back with this particular error, try transforming it
3080 * into the 10 byte version.
3081 */
3082 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
3083 error = cd6byteworkaround(ccb);
3084 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
3085 CAM_SCSI_STATUS_ERROR)
3086 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID)
3087 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)
3088 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0)
3089 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
3090 int sense_key, error_code, asc, ascq;
3091
3092 scsi_extract_sense(&ccb->csio.sense_data,
3093 &error_code, &sense_key, &asc, &ascq);
3094 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
3095 error = cd6byteworkaround(ccb);
3096 }
3097
3098 if (error == ERESTART)
3099 return (error);
3100
3101 /*
3102 * XXX
3103 * Until we have a better way of doing pack validation,
3104 * don't treat UAs as errors.
3105 */
3106 sense_flags |= SF_RETRY_UA;
3107 return (cam_periph_error(ccb, cam_flags, sense_flags,
3108 &softc->saved_ccb));
3109 }
3110
3111 /*
3112 * Read table of contents
3113 */
3114 static int
3115 cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start,
3116 u_int8_t *data, u_int32_t len, u_int32_t sense_flags)
3117 {
3118 struct scsi_read_toc *scsi_cmd;
3119 u_int32_t ntoc;
3120 struct ccb_scsiio *csio;
3121 union ccb *ccb;
3122 int error;
3123
3124 ntoc = len;
3125 error = 0;
3126
3127 ccb = cdgetccb(periph, /* priority */ 1);
3128
3129 csio = &ccb->csio;
3130
3131 cam_fill_csio(csio,
3132 /* retries */ 1,
3133 /* cbfcnp */ cddone,
3134 /* flags */ CAM_DIR_IN,
3135 /* tag_action */ MSG_SIMPLE_Q_TAG,
3136 /* data_ptr */ data,
3137 /* dxfer_len */ len,
3138 /* sense_len */ SSD_FULL_SIZE,
3139 sizeof(struct scsi_read_toc),
3140 /* timeout */ 50000);
3141
3142 scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes;
3143 bzero (scsi_cmd, sizeof(*scsi_cmd));
3144
3145 if (mode == CD_MSF_FORMAT)
3146 scsi_cmd->byte2 |= CD_MSF;
3147 scsi_cmd->from_track = start;
3148 /* scsi_ulto2b(ntoc, (u_int8_t *)scsi_cmd->data_len); */
3149 scsi_cmd->data_len[0] = (ntoc) >> 8;
3150 scsi_cmd->data_len[1] = (ntoc) & 0xff;
3151
3152 scsi_cmd->op_code = READ_TOC;
3153
3154 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3155 /*sense_flags*/SF_RETRY_UA | sense_flags);
3156
3157 xpt_release_ccb(ccb);
3158
3159 return(error);
3160 }
3161
3162 static int
3163 cdreadsubchannel(struct cam_periph *periph, u_int32_t mode,
3164 u_int32_t format, int track,
3165 struct cd_sub_channel_info *data, u_int32_t len)
3166 {
3167 struct scsi_read_subchannel *scsi_cmd;
3168 struct ccb_scsiio *csio;
3169 union ccb *ccb;
3170 int error;
3171
3172 error = 0;
3173
3174 ccb = cdgetccb(periph, /* priority */ 1);
3175
3176 csio = &ccb->csio;
3177
3178 cam_fill_csio(csio,
3179 /* retries */ 1,
3180 /* cbfcnp */ cddone,
3181 /* flags */ CAM_DIR_IN,
3182 /* tag_action */ MSG_SIMPLE_Q_TAG,
3183 /* data_ptr */ (u_int8_t *)data,
3184 /* dxfer_len */ len,
3185 /* sense_len */ SSD_FULL_SIZE,
3186 sizeof(struct scsi_read_subchannel),
3187 /* timeout */ 50000);
3188
3189 scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes;
3190 bzero (scsi_cmd, sizeof(*scsi_cmd));
3191
3192 scsi_cmd->op_code = READ_SUBCHANNEL;
3193 if (mode == CD_MSF_FORMAT)
3194 scsi_cmd->byte1 |= CD_MSF;
3195 scsi_cmd->byte2 = SRS_SUBQ;
3196 scsi_cmd->subchan_format = format;
3197 scsi_cmd->track = track;
3198 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len);
3199 scsi_cmd->control = 0;
3200
3201 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3202 /*sense_flags*/SF_RETRY_UA);
3203
3204 xpt_release_ccb(ccb);
3205
3206 return(error);
3207 }
3208
3209
3210 /*
3211 * All MODE_SENSE requests in the cd(4) driver MUST go through this
3212 * routine. See comments in cd6byteworkaround() for details.
3213 */
3214 static int
3215 cdgetmode(struct cam_periph *periph, struct cd_mode_params *data,
3216 u_int32_t page)
3217 {
3218 struct ccb_scsiio *csio;
3219 struct cd_softc *softc;
3220 union ccb *ccb;
3221 int param_len;
3222 int error;
3223
3224 softc = (struct cd_softc *)periph->softc;
3225
3226 ccb = cdgetccb(periph, /* priority */ 1);
3227
3228 csio = &ccb->csio;
3229
3230 data->cdb_size = softc->minimum_command_size;
3231 if (data->cdb_size < 10)
3232 param_len = sizeof(struct cd_mode_data);
3233 else
3234 param_len = sizeof(struct cd_mode_data_10);
3235
3236 /* Don't say we've got more room than we actually allocated */
3237 param_len = min(param_len, data->alloc_len);
3238
3239 scsi_mode_sense_len(csio,
3240 /* retries */ 1,
3241 /* cbfcnp */ cddone,
3242 /* tag_action */ MSG_SIMPLE_Q_TAG,
3243 /* dbd */ 0,
3244 /* page_code */ SMS_PAGE_CTRL_CURRENT,
3245 /* page */ page,
3246 /* param_buf */ data->mode_buf,
3247 /* param_len */ param_len,
3248 /* minimum_cmd_size */ softc->minimum_command_size,
3249 /* sense_len */ SSD_FULL_SIZE,
3250 /* timeout */ 50000);
3251
3252 /*
3253 * It would be nice not to have to do this, but there's no
3254 * available pointer in the CCB that would allow us to stuff the
3255 * mode params structure in there and retrieve it in
3256 * cd6byteworkaround(), so we can set the cdb size. The cdb size
3257 * lets the caller know what CDB size we ended up using, so they
3258 * can find the actual mode page offset.
3259 */
3260 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links);
3261
3262 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3263 /*sense_flags*/SF_RETRY_UA);
3264
3265 xpt_release_ccb(ccb);
3266
3267 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links);
3268
3269 /*
3270 * This is a bit of belt-and-suspenders checking, but if we run
3271 * into a situation where the target sends back multiple block
3272 * descriptors, we might not have enough space in the buffer to
3273 * see the whole mode page. Better to return an error than
3274 * potentially access memory beyond our malloced region.
3275 */
3276 if (error == 0) {
3277 u_int32_t data_len;
3278
3279 if (data->cdb_size == 10) {
3280 struct scsi_mode_header_10 *hdr10;
3281
3282 hdr10 = (struct scsi_mode_header_10 *)data->mode_buf;
3283 data_len = scsi_2btoul(hdr10->data_length);
3284 data_len += sizeof(hdr10->data_length);
3285 } else {
3286 struct scsi_mode_header_6 *hdr6;
3287
3288 hdr6 = (struct scsi_mode_header_6 *)data->mode_buf;
3289 data_len = hdr6->data_length;
3290 data_len += sizeof(hdr6->data_length);
3291 }
3292
3293 /*
3294 * Complain if there is more mode data available than we
3295 * allocated space for. This could potentially happen if
3296 * we miscalculated the page length for some reason, if the
3297 * drive returns multiple block descriptors, or if it sets
3298 * the data length incorrectly.
3299 */
3300 if (data_len > data->alloc_len) {
3301 xpt_print_path(periph->path);
3302 printf("allocated modepage %d length %d < returned "
3303 "length %d\n", page, data->alloc_len, data_len);
3304
3305 error = ENOSPC;
3306 }
3307 }
3308 return (error);
3309 }
3310
3311 /*
3312 * All MODE_SELECT requests in the cd(4) driver MUST go through this
3313 * routine. See comments in cd6byteworkaround() for details.
3314 */
3315 static int
3316 cdsetmode(struct cam_periph *periph, struct cd_mode_params *data)
3317 {
3318 struct ccb_scsiio *csio;
3319 struct cd_softc *softc;
3320 union ccb *ccb;
3321 int cdb_size, param_len;
3322 int error;
3323
3324 softc = (struct cd_softc *)periph->softc;
3325
3326 ccb = cdgetccb(periph, /* priority */ 1);
3327
3328 csio = &ccb->csio;
3329
3330 error = 0;
3331
3332 /*
3333 * If the data is formatted for the 10 byte version of the mode
3334 * select parameter list, we need to use the 10 byte CDB.
3335 * Otherwise, we use whatever the stored minimum command size.
3336 */
3337 if (data->cdb_size == 10)
3338 cdb_size = data->cdb_size;
3339 else
3340 cdb_size = softc->minimum_command_size;
3341
3342 if (cdb_size >= 10) {
3343 struct scsi_mode_header_10 *mode_header;
3344 u_int32_t data_len;
3345
3346 mode_header = (struct scsi_mode_header_10 *)data->mode_buf;
3347
3348 data_len = scsi_2btoul(mode_header->data_length);
3349
3350 scsi_ulto2b(0, mode_header->data_length);
3351 /*
3352 * SONY drives do not allow a mode select with a medium_type
3353 * value that has just been returned by a mode sense; use a
3354 * medium_type of 0 (Default) instead.
3355 */
3356 mode_header->medium_type = 0;
3357
3358 /*
3359 * Pass back whatever the drive passed to us, plus the size
3360 * of the data length field.
3361 */
3362 param_len = data_len + sizeof(mode_header->data_length);
3363
3364 } else {
3365 struct scsi_mode_header_6 *mode_header;
3366
3367 mode_header = (struct scsi_mode_header_6 *)data->mode_buf;
3368
3369 param_len = mode_header->data_length + 1;
3370
3371 mode_header->data_length = 0;
3372 /*
3373 * SONY drives do not allow a mode select with a medium_type
3374 * value that has just been returned by a mode sense; use a
3375 * medium_type of 0 (Default) instead.
3376 */
3377 mode_header->medium_type = 0;
3378 }
3379
3380 /* Don't say we've got more room than we actually allocated */
3381 param_len = min(param_len, data->alloc_len);
3382
3383 scsi_mode_select_len(csio,
3384 /* retries */ 1,
3385 /* cbfcnp */ cddone,
3386 /* tag_action */ MSG_SIMPLE_Q_TAG,
3387 /* scsi_page_fmt */ 1,
3388 /* save_pages */ 0,
3389 /* param_buf */ data->mode_buf,
3390 /* param_len */ param_len,
3391 /* minimum_cmd_size */ cdb_size,
3392 /* sense_len */ SSD_FULL_SIZE,
3393 /* timeout */ 50000);
3394
3395 /* See comments in cdgetmode() and cd6byteworkaround(). */
3396 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links);
3397
3398 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3399 /*sense_flags*/SF_RETRY_UA);
3400
3401 xpt_release_ccb(ccb);
3402
3403 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links);
3404
3405 return (error);
3406 }
3407
3408
3409 static int
3410 cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len)
3411 {
3412 struct ccb_scsiio *csio;
3413 union ccb *ccb;
3414 int error;
3415 u_int8_t cdb_len;
3416
3417 error = 0;
3418 ccb = cdgetccb(periph, /* priority */ 1);
3419 csio = &ccb->csio;
3420 /*
3421 * Use the smallest possible command to perform the operation.
3422 */
3423 if ((len & 0xffff0000) == 0) {
3424 /*
3425 * We can fit in a 10 byte cdb.
3426 */
3427 struct scsi_play_10 *scsi_cmd;
3428
3429 scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes;
3430 bzero (scsi_cmd, sizeof(*scsi_cmd));
3431 scsi_cmd->op_code = PLAY_10;
3432 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr);
3433 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len);
3434 cdb_len = sizeof(*scsi_cmd);
3435 } else {
3436 struct scsi_play_12 *scsi_cmd;
3437
3438 scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes;
3439 bzero (scsi_cmd, sizeof(*scsi_cmd));
3440 scsi_cmd->op_code = PLAY_12;
3441 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr);
3442 scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len);
3443 cdb_len = sizeof(*scsi_cmd);
3444 }
3445 cam_fill_csio(csio,
3446 /*retries*/2,
3447 cddone,
3448 /*flags*/CAM_DIR_NONE,
3449 MSG_SIMPLE_Q_TAG,
3450 /*dataptr*/NULL,
3451 /*datalen*/0,
3452 /*sense_len*/SSD_FULL_SIZE,
3453 cdb_len,
3454 /*timeout*/50 * 1000);
3455
3456 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3457 /*sense_flags*/SF_RETRY_UA);
3458
3459 xpt_release_ccb(ccb);
3460
3461 return(error);
3462 }
3463
3464 static int
3465 cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts,
3466 u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf)
3467 {
3468 struct scsi_play_msf *scsi_cmd;
3469 struct ccb_scsiio *csio;
3470 union ccb *ccb;
3471 int error;
3472
3473 error = 0;
3474
3475 ccb = cdgetccb(periph, /* priority */ 1);
3476
3477 csio = &ccb->csio;
3478
3479 cam_fill_csio(csio,
3480 /* retries */ 1,
3481 /* cbfcnp */ cddone,
3482 /* flags */ CAM_DIR_NONE,
3483 /* tag_action */ MSG_SIMPLE_Q_TAG,
3484 /* data_ptr */ NULL,
3485 /* dxfer_len */ 0,
3486 /* sense_len */ SSD_FULL_SIZE,
3487 sizeof(struct scsi_play_msf),
3488 /* timeout */ 50000);
3489
3490 scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes;
3491 bzero (scsi_cmd, sizeof(*scsi_cmd));
3492
3493 scsi_cmd->op_code = PLAY_MSF;
3494 scsi_cmd->start_m = startm;
3495 scsi_cmd->start_s = starts;
3496 scsi_cmd->start_f = startf;
3497 scsi_cmd->end_m = endm;
3498 scsi_cmd->end_s = ends;
3499 scsi_cmd->end_f = endf;
3500
3501 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3502 /*sense_flags*/SF_RETRY_UA);
3503
3504 xpt_release_ccb(ccb);
3505
3506 return(error);
3507 }
3508
3509
3510 static int
3511 cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex,
3512 u_int32_t etrack, u_int32_t eindex)
3513 {
3514 struct scsi_play_track *scsi_cmd;
3515 struct ccb_scsiio *csio;
3516 union ccb *ccb;
3517 int error;
3518
3519 error = 0;
3520
3521 ccb = cdgetccb(periph, /* priority */ 1);
3522
3523 csio = &ccb->csio;
3524
3525 cam_fill_csio(csio,
3526 /* retries */ 1,
3527 /* cbfcnp */ cddone,
3528 /* flags */ CAM_DIR_NONE,
3529 /* tag_action */ MSG_SIMPLE_Q_TAG,
3530 /* data_ptr */ NULL,
3531 /* dxfer_len */ 0,
3532 /* sense_len */ SSD_FULL_SIZE,
3533 sizeof(struct scsi_play_track),
3534 /* timeout */ 50000);
3535
3536 scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes;
3537 bzero (scsi_cmd, sizeof(*scsi_cmd));
3538
3539 scsi_cmd->op_code = PLAY_TRACK;
3540 scsi_cmd->start_track = strack;
3541 scsi_cmd->start_index = sindex;
3542 scsi_cmd->end_track = etrack;
3543 scsi_cmd->end_index = eindex;
3544
3545 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3546 /*sense_flags*/SF_RETRY_UA);
3547
3548 xpt_release_ccb(ccb);
3549
3550 return(error);
3551 }
3552
3553 static int
3554 cdpause(struct cam_periph *periph, u_int32_t go)
3555 {
3556 struct scsi_pause *scsi_cmd;
3557 struct ccb_scsiio *csio;
3558 union ccb *ccb;
3559 int error;
3560
3561 error = 0;
3562
3563 ccb = cdgetccb(periph, /* priority */ 1);
3564
3565 csio = &ccb->csio;
3566
3567 cam_fill_csio(csio,
3568 /* retries */ 1,
3569 /* cbfcnp */ cddone,
3570 /* flags */ CAM_DIR_NONE,
3571 /* tag_action */ MSG_SIMPLE_Q_TAG,
3572 /* data_ptr */ NULL,
3573 /* dxfer_len */ 0,
3574 /* sense_len */ SSD_FULL_SIZE,
3575 sizeof(struct scsi_pause),
3576 /* timeout */ 50000);
3577
3578 scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes;
3579 bzero (scsi_cmd, sizeof(*scsi_cmd));
3580
3581 scsi_cmd->op_code = PAUSE;
3582 scsi_cmd->resume = go;
3583
3584 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3585 /*sense_flags*/SF_RETRY_UA);
3586
3587 xpt_release_ccb(ccb);
3588
3589 return(error);
3590 }
3591
3592 static int
3593 cdstartunit(struct cam_periph *periph, int load)
3594 {
3595 union ccb *ccb;
3596 int error;
3597
3598 error = 0;
3599
3600 ccb = cdgetccb(periph, /* priority */ 1);
3601
3602 scsi_start_stop(&ccb->csio,
3603 /* retries */ 1,
3604 /* cbfcnp */ cddone,
3605 /* tag_action */ MSG_SIMPLE_Q_TAG,
3606 /* start */ TRUE,
3607 /* load_eject */ load,
3608 /* immediate */ FALSE,
3609 /* sense_len */ SSD_FULL_SIZE,
3610 /* timeout */ 50000);
3611
3612 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3613 /*sense_flags*/SF_RETRY_UA);
3614
3615 xpt_release_ccb(ccb);
3616
3617 return(error);
3618 }
3619
3620 static int
3621 cdstopunit(struct cam_periph *periph, u_int32_t eject)
3622 {
3623 union ccb *ccb;
3624 int error;
3625
3626 error = 0;
3627
3628 ccb = cdgetccb(periph, /* priority */ 1);
3629
3630 scsi_start_stop(&ccb->csio,
3631 /* retries */ 1,
3632 /* cbfcnp */ cddone,
3633 /* tag_action */ MSG_SIMPLE_Q_TAG,
3634 /* start */ FALSE,
3635 /* load_eject */ eject,
3636 /* immediate */ FALSE,
3637 /* sense_len */ SSD_FULL_SIZE,
3638 /* timeout */ 50000);
3639
3640 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3641 /*sense_flags*/SF_RETRY_UA);
3642
3643 xpt_release_ccb(ccb);
3644
3645 return(error);
3646 }
3647
3648 static int
3649 cdsetspeed(struct cam_periph *periph, u_int32_t rdspeed, u_int32_t wrspeed)
3650 {
3651 struct scsi_set_speed *scsi_cmd;
3652 struct ccb_scsiio *csio;
3653 union ccb *ccb;
3654 int error;
3655
3656 error = 0;
3657 ccb = cdgetccb(periph, /* priority */ 1);
3658 csio = &ccb->csio;
3659
3660 /* Preserve old behavior: units in multiples of CDROM speed */
3661 if (rdspeed < 177)
3662 rdspeed *= 177;
3663 if (wrspeed < 177)
3664 wrspeed *= 177;
3665
3666 cam_fill_csio(csio,
3667 /* retries */ 1,
3668 /* cbfcnp */ cddone,
3669 /* flags */ CAM_DIR_NONE,
3670 /* tag_action */ MSG_SIMPLE_Q_TAG,
3671 /* data_ptr */ NULL,
3672 /* dxfer_len */ 0,
3673 /* sense_len */ SSD_FULL_SIZE,
3674 sizeof(struct scsi_set_speed),
3675 /* timeout */ 50000);
3676
3677 scsi_cmd = (struct scsi_set_speed *)&csio->cdb_io.cdb_bytes;
3678 bzero(scsi_cmd, sizeof(*scsi_cmd));
3679
3680 scsi_cmd->opcode = SET_CD_SPEED;
3681 scsi_ulto2b(rdspeed, scsi_cmd->readspeed);
3682 scsi_ulto2b(wrspeed, scsi_cmd->writespeed);
3683
3684 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3685 /*sense_flags*/SF_RETRY_UA);
3686
3687 xpt_release_ccb(ccb);
3688
3689 return(error);
3690 }
3691
3692 static int
3693 cdreportkey(struct cam_periph *periph, struct dvd_authinfo *authinfo)
3694 {
3695 union ccb *ccb;
3696 u_int8_t *databuf;
3697 u_int32_t lba;
3698 int error;
3699 int length;
3700
3701 error = 0;
3702 databuf = NULL;
3703 lba = 0;
3704
3705 ccb = cdgetccb(periph, /* priority */ 1);
3706
3707 switch (authinfo->format) {
3708 case DVD_REPORT_AGID:
3709 length = sizeof(struct scsi_report_key_data_agid);
3710 break;
3711 case DVD_REPORT_CHALLENGE:
3712 length = sizeof(struct scsi_report_key_data_challenge);
3713 break;
3714 case DVD_REPORT_KEY1:
3715 length = sizeof(struct scsi_report_key_data_key1_key2);
3716 break;
3717 case DVD_REPORT_TITLE_KEY:
3718 length = sizeof(struct scsi_report_key_data_title);
3719 /* The lba field is only set for the title key */
3720 lba = authinfo->lba;
3721 break;
3722 case DVD_REPORT_ASF:
3723 length = sizeof(struct scsi_report_key_data_asf);
3724 break;
3725 case DVD_REPORT_RPC:
3726 length = sizeof(struct scsi_report_key_data_rpc);
3727 break;
3728 case DVD_INVALIDATE_AGID:
3729 length = 0;
3730 break;
3731 default:
3732 error = EINVAL;
3733 goto bailout;
3734 break; /* NOTREACHED */
3735 }
3736
3737 if (length != 0) {
3738 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3739 } else
3740 databuf = NULL;
3741
3742
3743 scsi_report_key(&ccb->csio,
3744 /* retries */ 1,
3745 /* cbfcnp */ cddone,
3746 /* tag_action */ MSG_SIMPLE_Q_TAG,
3747 /* lba */ lba,
3748 /* agid */ authinfo->agid,
3749 /* key_format */ authinfo->format,
3750 /* data_ptr */ databuf,
3751 /* dxfer_len */ length,
3752 /* sense_len */ SSD_FULL_SIZE,
3753 /* timeout */ 50000);
3754
3755 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3756 /*sense_flags*/SF_RETRY_UA);
3757
3758 if (error != 0)
3759 goto bailout;
3760
3761 if (ccb->csio.resid != 0) {
3762 xpt_print_path(periph->path);
3763 printf("warning, residual for report key command is %d\n",
3764 ccb->csio.resid);
3765 }
3766
3767 switch(authinfo->format) {
3768 case DVD_REPORT_AGID: {
3769 struct scsi_report_key_data_agid *agid_data;
3770
3771 agid_data = (struct scsi_report_key_data_agid *)databuf;
3772
3773 authinfo->agid = (agid_data->agid & RKD_AGID_MASK) >>
3774 RKD_AGID_SHIFT;
3775 break;
3776 }
3777 case DVD_REPORT_CHALLENGE: {
3778 struct scsi_report_key_data_challenge *chal_data;
3779
3780 chal_data = (struct scsi_report_key_data_challenge *)databuf;
3781
3782 bcopy(chal_data->challenge_key, authinfo->keychal,
3783 min(sizeof(chal_data->challenge_key),
3784 sizeof(authinfo->keychal)));
3785 break;
3786 }
3787 case DVD_REPORT_KEY1: {
3788 struct scsi_report_key_data_key1_key2 *key1_data;
3789
3790 key1_data = (struct scsi_report_key_data_key1_key2 *)databuf;
3791
3792 bcopy(key1_data->key1, authinfo->keychal,
3793 min(sizeof(key1_data->key1), sizeof(authinfo->keychal)));
3794 break;
3795 }
3796 case DVD_REPORT_TITLE_KEY: {
3797 struct scsi_report_key_data_title *title_data;
3798
3799 title_data = (struct scsi_report_key_data_title *)databuf;
3800
3801 authinfo->cpm = (title_data->byte0 & RKD_TITLE_CPM) >>
3802 RKD_TITLE_CPM_SHIFT;
3803 authinfo->cp_sec = (title_data->byte0 & RKD_TITLE_CP_SEC) >>
3804 RKD_TITLE_CP_SEC_SHIFT;
3805 authinfo->cgms = (title_data->byte0 & RKD_TITLE_CMGS_MASK) >>
3806 RKD_TITLE_CMGS_SHIFT;
3807 bcopy(title_data->title_key, authinfo->keychal,
3808 min(sizeof(title_data->title_key),
3809 sizeof(authinfo->keychal)));
3810 break;
3811 }
3812 case DVD_REPORT_ASF: {
3813 struct scsi_report_key_data_asf *asf_data;
3814
3815 asf_data = (struct scsi_report_key_data_asf *)databuf;
3816
3817 authinfo->asf = asf_data->success & RKD_ASF_SUCCESS;
3818 break;
3819 }
3820 case DVD_REPORT_RPC: {
3821 struct scsi_report_key_data_rpc *rpc_data;
3822
3823 rpc_data = (struct scsi_report_key_data_rpc *)databuf;
3824
3825 authinfo->reg_type = (rpc_data->byte4 & RKD_RPC_TYPE_MASK) >>
3826 RKD_RPC_TYPE_SHIFT;
3827 authinfo->vend_rsts =
3828 (rpc_data->byte4 & RKD_RPC_VENDOR_RESET_MASK) >>
3829 RKD_RPC_VENDOR_RESET_SHIFT;
3830 authinfo->user_rsts = rpc_data->byte4 & RKD_RPC_USER_RESET_MASK;
3831 authinfo->region = rpc_data->region_mask;
3832 authinfo->rpc_scheme = rpc_data->rpc_scheme1;
3833 break;
3834 }
3835 case DVD_INVALIDATE_AGID:
3836 break;
3837 default:
3838 /* This should be impossible, since we checked above */
3839 error = EINVAL;
3840 goto bailout;
3841 break; /* NOTREACHED */
3842 }
3843 bailout:
3844 if (databuf != NULL)
3845 free(databuf, M_DEVBUF);
3846
3847 xpt_release_ccb(ccb);
3848
3849 return(error);
3850 }
3851
3852 static int
3853 cdsendkey(struct cam_periph *periph, struct dvd_authinfo *authinfo)
3854 {
3855 union ccb *ccb;
3856 u_int8_t *databuf;
3857 int length;
3858 int error;
3859
3860 error = 0;
3861 databuf = NULL;
3862
3863 ccb = cdgetccb(periph, /* priority */ 1);
3864
3865 switch(authinfo->format) {
3866 case DVD_SEND_CHALLENGE: {
3867 struct scsi_report_key_data_challenge *challenge_data;
3868
3869 length = sizeof(*challenge_data);
3870
3871 challenge_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3872
3873 databuf = (u_int8_t *)challenge_data;
3874
3875 scsi_ulto2b(length - sizeof(challenge_data->data_len),
3876 challenge_data->data_len);
3877
3878 bcopy(authinfo->keychal, challenge_data->challenge_key,
3879 min(sizeof(authinfo->keychal),
3880 sizeof(challenge_data->challenge_key)));
3881 break;
3882 }
3883 case DVD_SEND_KEY2: {
3884 struct scsi_report_key_data_key1_key2 *key2_data;
3885
3886 length = sizeof(*key2_data);
3887
3888 key2_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3889
3890 databuf = (u_int8_t *)key2_data;
3891
3892 scsi_ulto2b(length - sizeof(key2_data->data_len),
3893 key2_data->data_len);
3894
3895 bcopy(authinfo->keychal, key2_data->key1,
3896 min(sizeof(authinfo->keychal), sizeof(key2_data->key1)));
3897
3898 break;
3899 }
3900 case DVD_SEND_RPC: {
3901 struct scsi_send_key_data_rpc *rpc_data;
3902
3903 length = sizeof(*rpc_data);
3904
3905 rpc_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3906
3907 databuf = (u_int8_t *)rpc_data;
3908
3909 scsi_ulto2b(length - sizeof(rpc_data->data_len),
3910 rpc_data->data_len);
3911
3912 rpc_data->region_code = authinfo->region;
3913 break;
3914 }
3915 default:
3916 error = EINVAL;
3917 goto bailout;
3918 break; /* NOTREACHED */
3919 }
3920
3921 scsi_send_key(&ccb->csio,
3922 /* retries */ 1,
3923 /* cbfcnp */ cddone,
3924 /* tag_action */ MSG_SIMPLE_Q_TAG,
3925 /* agid */ authinfo->agid,
3926 /* key_format */ authinfo->format,
3927 /* data_ptr */ databuf,
3928 /* dxfer_len */ length,
3929 /* sense_len */ SSD_FULL_SIZE,
3930 /* timeout */ 50000);
3931
3932 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3933 /*sense_flags*/SF_RETRY_UA);
3934
3935 bailout:
3936
3937 if (databuf != NULL)
3938 free(databuf, M_DEVBUF);
3939
3940 xpt_release_ccb(ccb);
3941
3942 return(error);
3943 }
3944
3945 static int
3946 cdreaddvdstructure(struct cam_periph *periph, struct dvd_struct *dvdstruct)
3947 {
3948 union ccb *ccb;
3949 u_int8_t *databuf;
3950 u_int32_t address;
3951 int error;
3952 int length;
3953
3954 error = 0;
3955 databuf = NULL;
3956 /* The address is reserved for many of the formats */
3957 address = 0;
3958
3959 ccb = cdgetccb(periph, /* priority */ 1);
3960
3961 switch(dvdstruct->format) {
3962 case DVD_STRUCT_PHYSICAL:
3963 length = sizeof(struct scsi_read_dvd_struct_data_physical);
3964 break;
3965 case DVD_STRUCT_COPYRIGHT:
3966 length = sizeof(struct scsi_read_dvd_struct_data_copyright);
3967 break;
3968 case DVD_STRUCT_DISCKEY:
3969 length = sizeof(struct scsi_read_dvd_struct_data_disc_key);
3970 break;
3971 case DVD_STRUCT_BCA:
3972 length = sizeof(struct scsi_read_dvd_struct_data_bca);
3973 break;
3974 case DVD_STRUCT_MANUFACT:
3975 length = sizeof(struct scsi_read_dvd_struct_data_manufacturer);
3976 break;
3977 case DVD_STRUCT_CMI:
3978 error = ENODEV;
3979 goto bailout;
3980 #ifdef notyet
3981 length = sizeof(struct scsi_read_dvd_struct_data_copy_manage);
3982 address = dvdstruct->address;
3983 #endif
3984 break; /* NOTREACHED */
3985 case DVD_STRUCT_PROTDISCID:
3986 length = sizeof(struct scsi_read_dvd_struct_data_prot_discid);
3987 break;
3988 case DVD_STRUCT_DISCKEYBLOCK:
3989 length = sizeof(struct scsi_read_dvd_struct_data_disc_key_blk);
3990 break;
3991 case DVD_STRUCT_DDS:
3992 length = sizeof(struct scsi_read_dvd_struct_data_dds);
3993 break;
3994 case DVD_STRUCT_MEDIUM_STAT:
3995 length = sizeof(struct scsi_read_dvd_struct_data_medium_status);
3996 break;
3997 case DVD_STRUCT_SPARE_AREA:
3998 length = sizeof(struct scsi_read_dvd_struct_data_spare_area);
3999 break;
4000 case DVD_STRUCT_RMD_LAST:
4001 error = ENODEV;
4002 goto bailout;
4003 #ifdef notyet
4004 length = sizeof(struct scsi_read_dvd_struct_data_rmd_borderout);
4005 address = dvdstruct->address;
4006 #endif
4007 break; /* NOTREACHED */
4008 case DVD_STRUCT_RMD_RMA:
4009 error = ENODEV;
4010 goto bailout;
4011 #ifdef notyet
4012 length = sizeof(struct scsi_read_dvd_struct_data_rmd);
4013 address = dvdstruct->address;
4014 #endif
4015 break; /* NOTREACHED */
4016 case DVD_STRUCT_PRERECORDED:
4017 length = sizeof(struct scsi_read_dvd_struct_data_leadin);
4018 break;
4019 case DVD_STRUCT_UNIQUEID:
4020 length = sizeof(struct scsi_read_dvd_struct_data_disc_id);
4021 break;
4022 case DVD_STRUCT_DCB:
4023 error = ENODEV;
4024 goto bailout;
4025 #ifdef notyet
4026 length = sizeof(struct scsi_read_dvd_struct_data_dcb);
4027 address = dvdstruct->address;
4028 #endif
4029 break; /* NOTREACHED */
4030 case DVD_STRUCT_LIST:
4031 /*
4032 * This is the maximum allocation length for the READ DVD
4033 * STRUCTURE command. There's nothing in the MMC3 spec
4034 * that indicates a limit in the amount of data that can
4035 * be returned from this call, other than the limits
4036 * imposed by the 2-byte length variables.
4037 */
4038 length = 65535;
4039 break;
4040 default:
4041 error = EINVAL;
4042 goto bailout;
4043 break; /* NOTREACHED */
4044 }
4045
4046 if (length != 0) {
4047 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
4048 } else
4049 databuf = NULL;
4050
4051 scsi_read_dvd_structure(&ccb->csio,
4052 /* retries */ 1,
4053 /* cbfcnp */ cddone,
4054 /* tag_action */ MSG_SIMPLE_Q_TAG,
4055 /* lba */ address,
4056 /* layer_number */ dvdstruct->layer_num,
4057 /* key_format */ dvdstruct->format,
4058 /* agid */ dvdstruct->agid,
4059 /* data_ptr */ databuf,
4060 /* dxfer_len */ length,
4061 /* sense_len */ SSD_FULL_SIZE,
4062 /* timeout */ 50000);
4063
4064 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
4065 /*sense_flags*/SF_RETRY_UA);
4066
4067 if (error != 0)
4068 goto bailout;
4069
4070 switch(dvdstruct->format) {
4071 case DVD_STRUCT_PHYSICAL: {
4072 struct scsi_read_dvd_struct_data_layer_desc *inlayer;
4073 struct dvd_layer *outlayer;
4074 struct scsi_read_dvd_struct_data_physical *phys_data;
4075
4076 phys_data =
4077 (struct scsi_read_dvd_struct_data_physical *)databuf;
4078 inlayer = &phys_data->layer_desc;
4079 outlayer = (struct dvd_layer *)&dvdstruct->data;
4080
4081 dvdstruct->length = sizeof(*inlayer);
4082
4083 outlayer->book_type = (inlayer->book_type_version &
4084 RDSD_BOOK_TYPE_MASK) >> RDSD_BOOK_TYPE_SHIFT;
4085 outlayer->book_version = (inlayer->book_type_version &
4086 RDSD_BOOK_VERSION_MASK);
4087 outlayer->disc_size = (inlayer->disc_size_max_rate &
4088 RDSD_DISC_SIZE_MASK) >> RDSD_DISC_SIZE_SHIFT;
4089 outlayer->max_rate = (inlayer->disc_size_max_rate &
4090 RDSD_MAX_RATE_MASK);
4091 outlayer->nlayers = (inlayer->layer_info &
4092 RDSD_NUM_LAYERS_MASK) >> RDSD_NUM_LAYERS_SHIFT;
4093 outlayer->track_path = (inlayer->layer_info &
4094 RDSD_TRACK_PATH_MASK) >> RDSD_TRACK_PATH_SHIFT;
4095 outlayer->layer_type = (inlayer->layer_info &
4096 RDSD_LAYER_TYPE_MASK);
4097 outlayer->linear_density = (inlayer->density &
4098 RDSD_LIN_DENSITY_MASK) >> RDSD_LIN_DENSITY_SHIFT;
4099 outlayer->track_density = (inlayer->density &
4100 RDSD_TRACK_DENSITY_MASK);
4101 outlayer->bca = (inlayer->bca & RDSD_BCA_MASK) >>
4102 RDSD_BCA_SHIFT;
4103 outlayer->start_sector = scsi_3btoul(inlayer->main_data_start);
4104 outlayer->end_sector = scsi_3btoul(inlayer->main_data_end);
4105 outlayer->end_sector_l0 =
4106 scsi_3btoul(inlayer->end_sector_layer0);
4107 break;
4108 }
4109 case DVD_STRUCT_COPYRIGHT: {
4110 struct scsi_read_dvd_struct_data_copyright *copy_data;
4111
4112 copy_data = (struct scsi_read_dvd_struct_data_copyright *)
4113 databuf;
4114
4115 dvdstruct->cpst = copy_data->cps_type;
4116 dvdstruct->rmi = copy_data->region_info;
4117 dvdstruct->length = 0;
4118
4119 break;
4120 }
4121 default:
4122 /*
4123 * Tell the user what the overall length is, no matter
4124 * what we can actually fit in the data buffer.
4125 */
4126 dvdstruct->length = length - ccb->csio.resid -
4127 sizeof(struct scsi_read_dvd_struct_data_header);
4128
4129 /*
4130 * But only actually copy out the smaller of what we read
4131 * in or what the structure can take.
4132 */
4133 bcopy(databuf + sizeof(struct scsi_read_dvd_struct_data_header),
4134 dvdstruct->data,
4135 min(sizeof(dvdstruct->data), dvdstruct->length));
4136 break;
4137 }
4138 bailout:
4139
4140 if (databuf != NULL)
4141 free(databuf, M_DEVBUF);
4142
4143 xpt_release_ccb(ccb);
4144
4145 return(error);
4146 }
4147
4148 void
4149 scsi_report_key(struct ccb_scsiio *csio, u_int32_t retries,
4150 void (*cbfcnp)(struct cam_periph *, union ccb *),
4151 u_int8_t tag_action, u_int32_t lba, u_int8_t agid,
4152 u_int8_t key_format, u_int8_t *data_ptr, u_int32_t dxfer_len,
4153 u_int8_t sense_len, u_int32_t timeout)
4154 {
4155 struct scsi_report_key *scsi_cmd;
4156
4157 scsi_cmd = (struct scsi_report_key *)&csio->cdb_io.cdb_bytes;
4158 bzero(scsi_cmd, sizeof(*scsi_cmd));
4159 scsi_cmd->opcode = REPORT_KEY;
4160 scsi_ulto4b(lba, scsi_cmd->lba);
4161 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len);
4162 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) |
4163 (key_format & RK_KF_KEYFORMAT_MASK);
4164
4165 cam_fill_csio(csio,
4166 retries,
4167 cbfcnp,
4168 /*flags*/ (dxfer_len == 0) ? CAM_DIR_NONE : CAM_DIR_IN,
4169 tag_action,
4170 /*data_ptr*/ data_ptr,
4171 /*dxfer_len*/ dxfer_len,
4172 sense_len,
4173 sizeof(*scsi_cmd),
4174 timeout);
4175 }
4176
4177 void
4178 scsi_send_key(struct ccb_scsiio *csio, u_int32_t retries,
4179 void (*cbfcnp)(struct cam_periph *, union ccb *),
4180 u_int8_t tag_action, u_int8_t agid, u_int8_t key_format,
4181 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
4182 u_int32_t timeout)
4183 {
4184 struct scsi_send_key *scsi_cmd;
4185
4186 scsi_cmd = (struct scsi_send_key *)&csio->cdb_io.cdb_bytes;
4187 bzero(scsi_cmd, sizeof(*scsi_cmd));
4188 scsi_cmd->opcode = SEND_KEY;
4189
4190 scsi_ulto2b(dxfer_len, scsi_cmd->param_len);
4191 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) |
4192 (key_format & RK_KF_KEYFORMAT_MASK);
4193
4194 cam_fill_csio(csio,
4195 retries,
4196 cbfcnp,
4197 /*flags*/ CAM_DIR_OUT,
4198 tag_action,
4199 /*data_ptr*/ data_ptr,
4200 /*dxfer_len*/ dxfer_len,
4201 sense_len,
4202 sizeof(*scsi_cmd),
4203 timeout);
4204 }
4205
4206
4207 void
4208 scsi_read_dvd_structure(struct ccb_scsiio *csio, u_int32_t retries,
4209 void (*cbfcnp)(struct cam_periph *, union ccb *),
4210 u_int8_t tag_action, u_int32_t address,
4211 u_int8_t layer_number, u_int8_t format, u_int8_t agid,
4212 u_int8_t *data_ptr, u_int32_t dxfer_len,
4213 u_int8_t sense_len, u_int32_t timeout)
4214 {
4215 struct scsi_read_dvd_structure *scsi_cmd;
4216
4217 scsi_cmd = (struct scsi_read_dvd_structure *)&csio->cdb_io.cdb_bytes;
4218 bzero(scsi_cmd, sizeof(*scsi_cmd));
4219 scsi_cmd->opcode = READ_DVD_STRUCTURE;
4220
4221 scsi_ulto4b(address, scsi_cmd->address);
4222 scsi_cmd->layer_number = layer_number;
4223 scsi_cmd->format = format;
4224 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len);
4225 /* The AGID is the top two bits of this byte */
4226 scsi_cmd->agid = agid << 6;
4227
4228 cam_fill_csio(csio,
4229 retries,
4230 cbfcnp,
4231 /*flags*/ CAM_DIR_IN,
4232 tag_action,
4233 /*data_ptr*/ data_ptr,
4234 /*dxfer_len*/ dxfer_len,
4235 sense_len,
4236 sizeof(*scsi_cmd),
4237 timeout);
4238 }
Cache object: 6154a2f1fa92167d565cfa884e54a328
|