xref: /freebsd/sys/cam/scsi/scsi_cd.c (revision 4e8d558c)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 1997 Justin T. Gibbs.
5  * Copyright (c) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Kenneth D. Merry.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions, and the following disclaimer,
13  *    without modification, immediately at the beginning of the file.
14  * 2. The name of the author may not be used to endorse or promote products
15  *    derived from this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
21  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 /*-
31  * Portions of this driver taken from the original FreeBSD cd driver.
32  * Written by Julian Elischer (julian@tfs.com)
33  * for TRW Financial Systems for use under the MACH(2.5) operating system.
34  *
35  * TRW Financial Systems, in accordance with their agreement with Carnegie
36  * Mellon University, makes this software available to CMU to distribute
37  * or use in any manner that they see fit as long as this message is kept with
38  * the software. For this reason TFS also grants any other persons or
39  * organisations permission to use or modify this software.
40  *
41  * TFS supplies this software to be publicly redistributed
42  * on the understanding that TFS is not responsible for the correct
43  * functioning of this software in any circumstances.
44  *
45  * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
46  *
47  *      from: cd.c,v 1.83 1997/05/04 15:24:22 joerg Exp $
48  */
49 
50 #include <sys/cdefs.h>
51 __FBSDID("$FreeBSD$");
52 
53 #include "opt_cd.h"
54 
55 #include <sys/param.h>
56 #include <sys/systm.h>
57 #include <sys/kernel.h>
58 #include <sys/bio.h>
59 #include <sys/conf.h>
60 #include <sys/disk.h>
61 #include <sys/malloc.h>
62 #include <sys/cdio.h>
63 #include <sys/cdrio.h>
64 #include <sys/dvdio.h>
65 #include <sys/devicestat.h>
66 #include <sys/proc.h>
67 #include <sys/sbuf.h>
68 #include <sys/sysctl.h>
69 #include <sys/taskqueue.h>
70 #include <geom/geom_disk.h>
71 
72 #include <cam/cam.h>
73 #include <cam/cam_ccb.h>
74 #include <cam/cam_periph.h>
75 #include <cam/cam_xpt_periph.h>
76 #include <cam/cam_queue.h>
77 #include <cam/cam_sim.h>
78 
79 #include <cam/scsi/scsi_message.h>
80 #include <cam/scsi/scsi_da.h>
81 #include <cam/scsi/scsi_cd.h>
82 
83 #define LEADOUT         0xaa            /* leadout toc entry */
84 
85 struct cd_params {
86 	u_int32_t blksize;
87 	u_long    disksize;
88 };
89 
90 typedef enum {
91 	CD_Q_NONE		= 0x00,
92 	CD_Q_NO_TOUCH		= 0x01,
93 	CD_Q_BCD_TRACKS		= 0x02,
94 	CD_Q_10_BYTE_ONLY	= 0x10,
95 	CD_Q_RETRY_BUSY		= 0x40
96 } cd_quirks;
97 
98 #define CD_Q_BIT_STRING		\
99 	"\020"			\
100 	"\001NO_TOUCH"		\
101 	"\002BCD_TRACKS"	\
102 	"\00510_BYTE_ONLY"	\
103 	"\007RETRY_BUSY"
104 
105 typedef enum {
106 	CD_FLAG_INVALID		= 0x0001,
107 	CD_FLAG_NEW_DISC	= 0x0002,
108 	CD_FLAG_DISC_LOCKED	= 0x0004,
109 	CD_FLAG_DISC_REMOVABLE	= 0x0008,
110 	CD_FLAG_SAW_MEDIA	= 0x0010,
111 	CD_FLAG_ACTIVE		= 0x0080,
112 	CD_FLAG_SCHED_ON_COMP	= 0x0100,
113 	CD_FLAG_RETRY_UA	= 0x0200,
114 	CD_FLAG_VALID_MEDIA	= 0x0400,
115 	CD_FLAG_VALID_TOC	= 0x0800,
116 	CD_FLAG_SCTX_INIT	= 0x1000,
117 	CD_FLAG_MEDIA_WAIT	= 0x2000,
118 	CD_FLAG_MEDIA_SCAN_ACT	= 0x4000
119 } cd_flags;
120 
121 typedef enum {
122 	CD_CCB_PROBE		= 0x01,
123 	CD_CCB_BUFFER_IO	= 0x02,
124 	CD_CCB_TUR		= 0x03,
125 	CD_CCB_MEDIA_PREVENT	= 0x04,
126 	CD_CCB_MEDIA_ALLOW	= 0x05,
127 	CD_CCB_MEDIA_SIZE	= 0x06,
128 	CD_CCB_MEDIA_TOC_HDR	= 0x07,
129 	CD_CCB_MEDIA_TOC_FULL	= 0x08,
130 	CD_CCB_MEDIA_TOC_LEAD	= 0x09,
131 	CD_CCB_TYPE_MASK	= 0x0F,
132 	CD_CCB_RETRY_UA		= 0x10
133 } cd_ccb_state;
134 
135 #define ccb_state ppriv_field0
136 #define ccb_bp ppriv_ptr1
137 
138 /*
139  * According to the MMC-6 spec, 6.25.3.2.11, the lead-out is reported by
140  * READ_TOC as logical track 170, so at most 169 tracks may be reported.
141  */
142 struct cd_tocdata {
143 	struct ioc_toc_header header;
144 	struct cd_toc_entry entries[170];
145 };
146 
147 struct cd_toc_single {
148 	struct ioc_toc_header header;
149 	struct cd_toc_entry entry;
150 };
151 
152 typedef enum {
153 	CD_STATE_PROBE,
154 	CD_STATE_NORMAL,
155 	CD_STATE_MEDIA_PREVENT,
156 	CD_STATE_MEDIA_ALLOW,
157 	CD_STATE_MEDIA_SIZE,
158 	CD_STATE_MEDIA_TOC_HDR,
159 	CD_STATE_MEDIA_TOC_FULL,
160 	CD_STATE_MEDIA_TOC_LEAD
161 } cd_state;
162 
163 struct cd_softc {
164 	cam_pinfo		pinfo;
165 	cd_state		state;
166 	volatile cd_flags	flags;
167 	struct bio_queue_head	bio_queue;
168 	LIST_HEAD(, ccb_hdr)	pending_ccbs;
169 	struct cd_params	params;
170 	cd_quirks		quirks;
171 	struct cam_periph	*periph;
172 	int			minimum_command_size;
173 	int			outstanding_cmds;
174 	int			tur;
175 	struct task		sysctl_task;
176 	struct sysctl_ctx_list	sysctl_ctx;
177 	struct sysctl_oid	*sysctl_tree;
178 	STAILQ_HEAD(, cd_mode_params)	mode_queue;
179 	struct cd_tocdata	toc;
180 	int			toc_read_len;
181 	struct cd_toc_single	leadout;
182 	struct disk		*disk;
183 	struct callout		mediapoll_c;
184 
185 #define CD_ANNOUNCETMP_SZ 120
186 	char			announce_temp[CD_ANNOUNCETMP_SZ];
187 #define CD_ANNOUNCE_SZ 400
188 	char			announce_buf[CD_ANNOUNCE_SZ];
189 };
190 
191 struct cd_page_sizes {
192 	int page;
193 	int page_size;
194 };
195 
196 static struct cd_page_sizes cd_page_size_table[] =
197 {
198 	{ AUDIO_PAGE, sizeof(struct cd_audio_page)}
199 };
200 
201 struct cd_quirk_entry {
202 	struct scsi_inquiry_pattern inq_pat;
203 	cd_quirks quirks;
204 };
205 
206 /*
207  * NOTE ON 10_BYTE_ONLY quirks:  Any 10_BYTE_ONLY quirks MUST be because
208  * your device hangs when it gets a 10 byte command.  Adding a quirk just
209  * to get rid of the informative diagnostic message is not acceptable.  All
210  * 10_BYTE_ONLY quirks must be documented in full in a PR (which should be
211  * referenced in a comment along with the quirk) , and must be approved by
212  * ken@FreeBSD.org.  Any quirks added that don't adhere to this policy may
213  * be removed until the submitter can explain why they are needed.
214  * 10_BYTE_ONLY quirks will be removed (as they will no longer be necessary)
215  * when the CAM_NEW_TRAN_CODE work is done.
216  */
217 static struct cd_quirk_entry cd_quirk_table[] =
218 {
219 	{
220 		{ T_CDROM, SIP_MEDIA_REMOVABLE, "CHINON", "CD-ROM CDS-535","*"},
221 		/* quirks */ CD_Q_BCD_TRACKS
222 	},
223 	{
224 		/*
225 		 * VMware returns BUSY status when storage has transient
226 		 * connectivity problems, so better wait.
227 		 */
228 		{T_CDROM, SIP_MEDIA_REMOVABLE, "NECVMWar", "VMware IDE CDR10", "*"},
229 		/*quirks*/ CD_Q_RETRY_BUSY
230 	}
231 };
232 
233 #ifdef COMPAT_FREEBSD32
234 struct ioc_read_toc_entry32 {
235 	u_char	address_format;
236 	u_char	starting_track;
237 	u_short	data_len;
238 	uint32_t data;	/* (struct cd_toc_entry *) */
239 };
240 #define	CDIOREADTOCENTRYS_32	\
241     _IOC_NEWTYPE(CDIOREADTOCENTRYS, struct ioc_read_toc_entry32)
242 #endif
243 
244 static	disk_open_t	cdopen;
245 static	disk_close_t	cdclose;
246 static	disk_ioctl_t	cdioctl;
247 static	disk_strategy_t	cdstrategy;
248 
249 static	periph_init_t	cdinit;
250 static	periph_ctor_t	cdregister;
251 static	periph_dtor_t	cdcleanup;
252 static	periph_start_t	cdstart;
253 static	periph_oninv_t	cdoninvalidate;
254 static	void		cdasync(void *callback_arg, u_int32_t code,
255 				struct cam_path *path, void *arg);
256 static	int		cdcmdsizesysctl(SYSCTL_HANDLER_ARGS);
257 static	int		cdrunccb(union ccb *ccb,
258 				 int (*error_routine)(union ccb *ccb,
259 						      u_int32_t cam_flags,
260 						      u_int32_t sense_flags),
261 				 u_int32_t cam_flags, u_int32_t sense_flags);
262 static	void		cddone(struct cam_periph *periph,
263 			       union ccb *start_ccb);
264 static	union cd_pages	*cdgetpage(struct cd_mode_params *mode_params);
265 static	int		cdgetpagesize(int page_num);
266 static	void		cdprevent(struct cam_periph *periph, int action);
267 static	void		cdmediaprobedone(struct cam_periph *periph);
268 static	int		cdcheckmedia(struct cam_periph *periph, int do_wait);
269 #if 0
270 static	int		cdsize(struct cam_periph *periph, u_int32_t *size);
271 #endif
272 static	int		cd6byteworkaround(union ccb *ccb);
273 static	int		cderror(union ccb *ccb, u_int32_t cam_flags,
274 				u_int32_t sense_flags);
275 static	int		cdreadtoc(struct cam_periph *periph, u_int32_t mode,
276 				  u_int32_t start, u_int8_t *data,
277 				  u_int32_t len, u_int32_t sense_flags);
278 static	int		cdgetmode(struct cam_periph *periph,
279 				  struct cd_mode_params *data, u_int32_t page);
280 static	int		cdsetmode(struct cam_periph *periph,
281 				  struct cd_mode_params *data);
282 static	int		cdplay(struct cam_periph *periph, u_int32_t blk,
283 			       u_int32_t len);
284 static	int		cdreadsubchannel(struct cam_periph *periph,
285 					 u_int32_t mode, u_int32_t format,
286 					 int track,
287 					 struct cd_sub_channel_info *data,
288 					 u_int32_t len);
289 static	int		cdplaymsf(struct cam_periph *periph, u_int32_t startm,
290 				  u_int32_t starts, u_int32_t startf,
291 				  u_int32_t endm, u_int32_t ends,
292 				  u_int32_t endf);
293 static	int		cdplaytracks(struct cam_periph *periph,
294 				     u_int32_t strack, u_int32_t sindex,
295 				     u_int32_t etrack, u_int32_t eindex);
296 static	int		cdpause(struct cam_periph *periph, u_int32_t go);
297 static	int		cdstopunit(struct cam_periph *periph, u_int32_t eject);
298 static	int		cdstartunit(struct cam_periph *periph, int load);
299 static	int		cdsetspeed(struct cam_periph *periph,
300 				   u_int32_t rdspeed, u_int32_t wrspeed);
301 static	int		cdreportkey(struct cam_periph *periph,
302 				    struct dvd_authinfo *authinfo);
303 static	int		cdsendkey(struct cam_periph *periph,
304 				  struct dvd_authinfo *authinfo);
305 static	int		cdreaddvdstructure(struct cam_periph *periph,
306 					   struct dvd_struct *dvdstruct);
307 static	callout_func_t	cdmediapoll;
308 
309 static struct periph_driver cddriver =
310 {
311 	cdinit, "cd",
312 	TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0
313 };
314 
315 PERIPHDRIVER_DECLARE(cd, cddriver);
316 
317 #ifndef	CD_DEFAULT_POLL_PERIOD
318 #define	CD_DEFAULT_POLL_PERIOD	3
319 #endif
320 #ifndef	CD_DEFAULT_RETRY
321 #define	CD_DEFAULT_RETRY	4
322 #endif
323 #ifndef	CD_DEFAULT_TIMEOUT
324 #define	CD_DEFAULT_TIMEOUT	30000
325 #endif
326 
327 static int cd_poll_period = CD_DEFAULT_POLL_PERIOD;
328 static int cd_retry_count = CD_DEFAULT_RETRY;
329 static int cd_timeout = CD_DEFAULT_TIMEOUT;
330 
331 static SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
332     "CAM CDROM driver");
333 SYSCTL_INT(_kern_cam_cd, OID_AUTO, poll_period, CTLFLAG_RWTUN,
334            &cd_poll_period, 0, "Media polling period in seconds");
335 SYSCTL_INT(_kern_cam_cd, OID_AUTO, retry_count, CTLFLAG_RWTUN,
336            &cd_retry_count, 0, "Normal I/O retry count");
337 SYSCTL_INT(_kern_cam_cd, OID_AUTO, timeout, CTLFLAG_RWTUN,
338 	   &cd_timeout, 0, "Timeout, in us, for read operations");
339 
340 static MALLOC_DEFINE(M_SCSICD, "scsi_cd", "scsi_cd buffers");
341 
342 static void
343 cdinit(void)
344 {
345 	cam_status status;
346 
347 	/*
348 	 * Install a global async callback.  This callback will
349 	 * receive async callbacks like "new device found".
350 	 */
351 	status = xpt_register_async(AC_FOUND_DEVICE, cdasync, NULL, NULL);
352 
353 	if (status != CAM_REQ_CMP) {
354 		printf("cd: Failed to attach master async callback "
355 		       "due to status 0x%x!\n", status);
356 	}
357 }
358 
359 /*
360  * Callback from GEOM, called when it has finished cleaning up its
361  * resources.
362  */
363 static void
364 cddiskgonecb(struct disk *dp)
365 {
366 	struct cam_periph *periph;
367 
368 	periph = (struct cam_periph *)dp->d_drv1;
369 	cam_periph_release(periph);
370 }
371 
372 static void
373 cdoninvalidate(struct cam_periph *periph)
374 {
375 	struct cd_softc *softc;
376 
377 	cam_periph_assert(periph, MA_OWNED);
378 	softc = (struct cd_softc *)periph->softc;
379 
380 	/*
381 	 * De-register any async callbacks.
382 	 */
383 	xpt_register_async(0, cdasync, periph, periph->path);
384 
385 	softc->flags |= CD_FLAG_INVALID;
386 
387 	/*
388 	 * Return all queued I/O with ENXIO.
389 	 * XXX Handle any transactions queued to the card
390 	 *     with XPT_ABORT_CCB.
391 	 */
392 	bioq_flush(&softc->bio_queue, NULL, ENXIO);
393 
394 	disk_gone(softc->disk);
395 }
396 
397 static void
398 cdcleanup(struct cam_periph *periph)
399 {
400 	struct cd_softc *softc;
401 
402 	softc = (struct cd_softc *)periph->softc;
403 
404 	cam_periph_unlock(periph);
405 	if ((softc->flags & CD_FLAG_SCTX_INIT) != 0
406 	    && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
407 		xpt_print(periph->path, "can't remove sysctl context\n");
408 	}
409 
410 	callout_drain(&softc->mediapoll_c);
411 	disk_destroy(softc->disk);
412 	free(softc, M_DEVBUF);
413 	cam_periph_lock(periph);
414 }
415 
416 static void
417 cdasync(void *callback_arg, u_int32_t code,
418 	struct cam_path *path, void *arg)
419 {
420 	struct cam_periph *periph;
421 	struct cd_softc *softc;
422 
423 	periph = (struct cam_periph *)callback_arg;
424 	switch (code) {
425 	case AC_FOUND_DEVICE:
426 	{
427 		struct ccb_getdev *cgd;
428 		cam_status status;
429 
430 		cgd = (struct ccb_getdev *)arg;
431 		if (cgd == NULL)
432 			break;
433 
434 		if (cgd->protocol != PROTO_SCSI)
435 			break;
436 		if (SID_QUAL(&cgd->inq_data) != SID_QUAL_LU_CONNECTED)
437 			break;
438 		if (SID_TYPE(&cgd->inq_data) != T_CDROM
439 		    && SID_TYPE(&cgd->inq_data) != T_WORM)
440 			break;
441 
442 		/*
443 		 * Allocate a peripheral instance for
444 		 * this device and start the probe
445 		 * process.
446 		 */
447 		status = cam_periph_alloc(cdregister, cdoninvalidate,
448 					  cdcleanup, cdstart,
449 					  "cd", CAM_PERIPH_BIO,
450 					  path, cdasync,
451 					  AC_FOUND_DEVICE, cgd);
452 
453 		if (status != CAM_REQ_CMP
454 		 && status != CAM_REQ_INPROG)
455 			printf("cdasync: Unable to attach new device "
456 			       "due to status 0x%x\n", status);
457 
458 		return;
459 	}
460 	case AC_UNIT_ATTENTION:
461 	{
462 		union ccb *ccb;
463 		int error_code, sense_key, asc, ascq;
464 
465 		softc = (struct cd_softc *)periph->softc;
466 		ccb = (union ccb *)arg;
467 
468 		/*
469 		 * Handle all media change UNIT ATTENTIONs except
470 		 * our own, as they will be handled by cderror().
471 		 */
472 		if (xpt_path_periph(ccb->ccb_h.path) != periph &&
473 		    scsi_extract_sense_ccb(ccb,
474 		     &error_code, &sense_key, &asc, &ascq)) {
475 			if (asc == 0x28 && ascq == 0x00)
476 				disk_media_changed(softc->disk, M_NOWAIT);
477 		}
478 		break;
479 	}
480 	case AC_SCSI_AEN:
481 		cam_periph_assert(periph, MA_OWNED);
482 		softc = (struct cd_softc *)periph->softc;
483 		if (softc->state == CD_STATE_NORMAL && !softc->tur) {
484 			if (cam_periph_acquire(periph) == 0) {
485 				softc->tur = 1;
486 				xpt_schedule(periph, CAM_PRIORITY_NORMAL);
487 			}
488 		}
489 		/* FALLTHROUGH */
490 	case AC_SENT_BDR:
491 	case AC_BUS_RESET:
492 	{
493 		struct ccb_hdr *ccbh;
494 
495 		cam_periph_assert(periph, MA_OWNED);
496 		softc = (struct cd_softc *)periph->softc;
497 		/*
498 		 * Don't fail on the expected unit attention
499 		 * that will occur.
500 		 */
501 		softc->flags |= CD_FLAG_RETRY_UA;
502 		LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
503 			ccbh->ccb_state |= CD_CCB_RETRY_UA;
504 		break;
505 	}
506 	default:
507 		break;
508 	}
509 
510 	cam_periph_async(periph, code, path, arg);
511 }
512 
513 static void
514 cdsysctlinit(void *context, int pending)
515 {
516 	struct cam_periph *periph;
517 	struct cd_softc *softc;
518 	char tmpstr[32], tmpstr2[16];
519 
520 	periph = (struct cam_periph *)context;
521 	if (cam_periph_acquire(periph) != 0)
522 		return;
523 
524 	softc = (struct cd_softc *)periph->softc;
525 	snprintf(tmpstr, sizeof(tmpstr), "CAM CD unit %d", periph->unit_number);
526 	snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
527 
528 	sysctl_ctx_init(&softc->sysctl_ctx);
529 	cam_periph_lock(periph);
530 	softc->flags |= CD_FLAG_SCTX_INIT;
531 	cam_periph_unlock(periph);
532 	softc->sysctl_tree = SYSCTL_ADD_NODE_WITH_LABEL(&softc->sysctl_ctx,
533 		SYSCTL_STATIC_CHILDREN(_kern_cam_cd), OID_AUTO,
534 		tmpstr2, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, tmpstr,
535 		"device_index");
536 
537 	if (softc->sysctl_tree == NULL) {
538 		printf("cdsysctlinit: unable to allocate sysctl tree\n");
539 		cam_periph_release(periph);
540 		return;
541 	}
542 
543 	/*
544 	 * Now register the sysctl handler, so the user can the value on
545 	 * the fly.
546 	 */
547 	SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree),
548 		OID_AUTO, "minimum_cmd_size",
549 		CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE,
550 		&softc->minimum_command_size, 0, cdcmdsizesysctl, "I",
551 		"Minimum CDB size");
552 
553 	cam_periph_release(periph);
554 }
555 
556 /*
557  * We have a handler function for this so we can check the values when the
558  * user sets them, instead of every time we look at them.
559  */
560 static int
561 cdcmdsizesysctl(SYSCTL_HANDLER_ARGS)
562 {
563 	int error, value;
564 
565 	value = *(int *)arg1;
566 
567 	error = sysctl_handle_int(oidp, &value, 0, req);
568 
569 	if ((error != 0)
570 	 || (req->newptr == NULL))
571 		return (error);
572 
573 	/*
574 	 * The only real values we can have here are 6 or 10.  I don't
575 	 * really forsee having 12 be an option at any time in the future.
576 	 * So if the user sets something less than or equal to 6, we'll set
577 	 * it to 6.  If he sets something greater than 6, we'll set it to 10.
578 	 *
579 	 * I suppose we could just return an error here for the wrong values,
580 	 * but I don't think it's necessary to do so, as long as we can
581 	 * determine the user's intent without too much trouble.
582 	 */
583 	if (value < 6)
584 		value = 6;
585 	else if (value > 6)
586 		value = 10;
587 
588 	*(int *)arg1 = value;
589 
590 	return (0);
591 }
592 
593 static cam_status
594 cdregister(struct cam_periph *periph, void *arg)
595 {
596 	struct cd_softc *softc;
597 	struct ccb_pathinq cpi;
598 	struct ccb_getdev *cgd;
599 	char tmpstr[80];
600 	caddr_t match;
601 
602 	cgd = (struct ccb_getdev *)arg;
603 	if (cgd == NULL) {
604 		printf("cdregister: no getdev CCB, can't register device\n");
605 		return(CAM_REQ_CMP_ERR);
606 	}
607 
608 	softc = (struct cd_softc *)malloc(sizeof(*softc),M_DEVBUF,
609 	    M_NOWAIT | M_ZERO);
610 	if (softc == NULL) {
611 		printf("cdregister: Unable to probe new device. "
612 		       "Unable to allocate softc\n");
613 		return(CAM_REQ_CMP_ERR);
614 	}
615 
616 	LIST_INIT(&softc->pending_ccbs);
617 	STAILQ_INIT(&softc->mode_queue);
618 	softc->state = CD_STATE_PROBE;
619 	bioq_init(&softc->bio_queue);
620 	if (SID_IS_REMOVABLE(&cgd->inq_data))
621 		softc->flags |= CD_FLAG_DISC_REMOVABLE;
622 
623 	periph->softc = softc;
624 	softc->periph = periph;
625 
626 	/*
627 	 * See if this device has any quirks.
628 	 */
629 	match = cam_quirkmatch((caddr_t)&cgd->inq_data,
630 			       (caddr_t)cd_quirk_table,
631 			       nitems(cd_quirk_table),
632 			       sizeof(*cd_quirk_table), scsi_inquiry_match);
633 
634 	if (match != NULL)
635 		softc->quirks = ((struct cd_quirk_entry *)match)->quirks;
636 	else
637 		softc->quirks = CD_Q_NONE;
638 
639 	/* Check if the SIM does not want 6 byte commands */
640 	xpt_path_inq(&cpi, periph->path);
641 	if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
642 		softc->quirks |= CD_Q_10_BYTE_ONLY;
643 
644 	TASK_INIT(&softc->sysctl_task, 0, cdsysctlinit, periph);
645 
646 	/* The default is 6 byte commands, unless quirked otherwise */
647 	if (softc->quirks & CD_Q_10_BYTE_ONLY)
648 		softc->minimum_command_size = 10;
649 	else
650 		softc->minimum_command_size = 6;
651 
652 	/*
653 	 * Take a reference on the periph while cdstart is called to finish the
654 	 * probe.  The reference will be dropped in cddone at the end of probe.
655 	 */
656 	(void)cam_periph_acquire(periph);
657 	cam_periph_unlock(periph);
658 	/*
659 	 * Load the user's default, if any.
660 	 */
661 	snprintf(tmpstr, sizeof(tmpstr), "kern.cam.cd.%d.minimum_cmd_size",
662 		 periph->unit_number);
663 	TUNABLE_INT_FETCH(tmpstr, &softc->minimum_command_size);
664 
665 	/* 6 and 10 are the only permissible values here. */
666 	if (softc->minimum_command_size < 6)
667 		softc->minimum_command_size = 6;
668 	else if (softc->minimum_command_size > 6)
669 		softc->minimum_command_size = 10;
670 
671 	/*
672 	 * We need to register the statistics structure for this device,
673 	 * but we don't have the blocksize yet for it.  So, we register
674 	 * the structure and indicate that we don't have the blocksize
675 	 * yet.  Unlike other SCSI peripheral drivers, we explicitly set
676 	 * the device type here to be CDROM, rather than just ORing in
677 	 * the device type.  This is because this driver can attach to either
678 	 * CDROM or WORM devices, and we want this peripheral driver to
679 	 * show up in the devstat list as a CD peripheral driver, not a
680 	 * WORM peripheral driver.  WORM drives will also have the WORM
681 	 * driver attached to them.
682 	 */
683 	softc->disk = disk_alloc();
684 	softc->disk->d_devstat = devstat_new_entry("cd",
685 			  periph->unit_number, 0,
686 			  DEVSTAT_BS_UNAVAILABLE,
687 			  DEVSTAT_TYPE_CDROM |
688 			  XPORT_DEVSTAT_TYPE(cpi.transport),
689 			  DEVSTAT_PRIORITY_CD);
690 	softc->disk->d_open = cdopen;
691 	softc->disk->d_close = cdclose;
692 	softc->disk->d_strategy = cdstrategy;
693 	softc->disk->d_gone = cddiskgonecb;
694 	softc->disk->d_ioctl = cdioctl;
695 	softc->disk->d_name = "cd";
696 	cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
697 	    sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
698 	strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
699 	cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
700 	    cgd->inq_data.product, sizeof(cgd->inq_data.product),
701 	    sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
702 	softc->disk->d_unit = periph->unit_number;
703 	softc->disk->d_drv1 = periph;
704 	if (cpi.maxio == 0)
705 		softc->disk->d_maxsize = DFLTPHYS;	/* traditional default */
706 	else if (cpi.maxio > maxphys)
707 		softc->disk->d_maxsize = maxphys;	/* for safety */
708 	else
709 		softc->disk->d_maxsize = cpi.maxio;
710 	softc->disk->d_flags = 0;
711 	softc->disk->d_hba_vendor = cpi.hba_vendor;
712 	softc->disk->d_hba_device = cpi.hba_device;
713 	softc->disk->d_hba_subvendor = cpi.hba_subvendor;
714 	softc->disk->d_hba_subdevice = cpi.hba_subdevice;
715 	snprintf(softc->disk->d_attachment, sizeof(softc->disk->d_attachment),
716 	    "%s%d", cpi.dev_name, cpi.unit_number);
717 	cam_periph_lock(periph);
718 
719 	/*
720 	 * Add an async callback so that we get
721 	 * notified if this device goes away.
722 	 */
723 	xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE |
724 	    AC_SCSI_AEN | AC_UNIT_ATTENTION, cdasync, periph, periph->path);
725 
726 	/*
727 	 * Schedule a periodic media polling events.
728 	 */
729 	callout_init_mtx(&softc->mediapoll_c, cam_periph_mtx(periph), 0);
730 	if ((softc->flags & CD_FLAG_DISC_REMOVABLE) &&
731 	    (cgd->inq_flags & SID_AEN) == 0 &&
732 	    cd_poll_period != 0) {
733 		callout_reset_sbt(&softc->mediapoll_c, cd_poll_period * SBT_1S,
734 		    0, cdmediapoll, periph, C_PREL(1));
735 	}
736 
737 	/* Released after probe when disk_create() call pass it to GEOM. */
738 	cam_periph_hold_boot(periph);
739 
740 	xpt_schedule(periph, CAM_PRIORITY_DEV);
741 	return(CAM_REQ_CMP);
742 }
743 
744 static int
745 cdopen(struct disk *dp)
746 {
747 	struct cam_periph *periph;
748 	struct cd_softc *softc;
749 	int error;
750 
751 	periph = (struct cam_periph *)dp->d_drv1;
752 	softc = (struct cd_softc *)periph->softc;
753 
754 	if (cam_periph_acquire(periph) != 0)
755 		return(ENXIO);
756 
757 	cam_periph_lock(periph);
758 
759 	if (softc->flags & CD_FLAG_INVALID) {
760 		cam_periph_release_locked(periph);
761 		cam_periph_unlock(periph);
762 		return(ENXIO);
763 	}
764 
765 	if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) {
766 		cam_periph_release_locked(periph);
767 		cam_periph_unlock(periph);
768 		return (error);
769 	}
770 
771 	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
772 	    ("cdopen\n"));
773 
774 	/*
775 	 * Check for media, and set the appropriate flags.  We don't bail
776 	 * if we don't have media, but then we don't allow anything but the
777 	 * CDIOCEJECT/CDIOCCLOSE ioctls if there is no media.
778 	 */
779 	cdcheckmedia(periph, /*do_wait*/ 1);
780 
781 	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n"));
782 	cam_periph_unhold(periph);
783 
784 	cam_periph_unlock(periph);
785 
786 	return (0);
787 }
788 
789 static int
790 cdclose(struct disk *dp)
791 {
792 	struct 	cam_periph *periph;
793 	struct	cd_softc *softc;
794 
795 	periph = (struct cam_periph *)dp->d_drv1;
796 	softc = (struct cd_softc *)periph->softc;
797 
798 	cam_periph_lock(periph);
799 	if (cam_periph_hold(periph, PRIBIO) != 0) {
800 		cam_periph_unlock(periph);
801 		cam_periph_release(periph);
802 		return (0);
803 	}
804 
805 	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
806 	    ("cdclose\n"));
807 
808 	if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0)
809 		cdprevent(periph, PR_ALLOW);
810 
811 	/*
812 	 * Since we're closing this CD, mark the blocksize as unavailable.
813 	 * It will be marked as available when the CD is opened again.
814 	 */
815 	softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
816 
817 	/*
818 	 * We'll check the media and toc again at the next open().
819 	 */
820 	softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC);
821 
822 	cam_periph_unhold(periph);
823 	cam_periph_release_locked(periph);
824 	cam_periph_unlock(periph);
825 
826 	return (0);
827 }
828 
829 static int
830 cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb,
831 					      u_int32_t cam_flags,
832 					      u_int32_t sense_flags),
833 	 u_int32_t cam_flags, u_int32_t sense_flags)
834 {
835 	struct cd_softc *softc;
836 	struct cam_periph *periph;
837 	int error;
838 
839 	periph = xpt_path_periph(ccb->ccb_h.path);
840 	softc = (struct cd_softc *)periph->softc;
841 
842 	error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags,
843 				  softc->disk->d_devstat);
844 
845 	return(error);
846 }
847 
848 /*
849  * Actually translate the requested transfer into one the physical driver
850  * can understand.  The transfer is described by a buf and will include
851  * only one physical transfer.
852  */
853 static void
854 cdstrategy(struct bio *bp)
855 {
856 	struct cam_periph *periph;
857 	struct cd_softc *softc;
858 
859 	periph = (struct cam_periph *)bp->bio_disk->d_drv1;
860 	cam_periph_lock(periph);
861 	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
862 	    ("cdstrategy(%p)\n", bp));
863 
864 	softc = (struct cd_softc *)periph->softc;
865 
866 	/*
867 	 * If the device has been made invalid, error out
868 	 */
869 	if ((softc->flags & CD_FLAG_INVALID)) {
870 		cam_periph_unlock(periph);
871 		biofinish(bp, NULL, ENXIO);
872 		return;
873 	}
874 
875 	/*
876 	 * Place it in the queue of disk activities for this disk
877 	 */
878 	bioq_disksort(&softc->bio_queue, bp);
879 
880         /*
881 	 * If we don't know that we have valid media, schedule the media
882 	 * check first.  The I/O will get executed after the media check.
883 	 */
884 	if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0)
885 		cdcheckmedia(periph, /*do_wait*/ 0);
886 	else
887 		xpt_schedule(periph, CAM_PRIORITY_NORMAL);
888 
889 	cam_periph_unlock(periph);
890 	return;
891 }
892 
893 static void
894 cdstart(struct cam_periph *periph, union ccb *start_ccb)
895 {
896 	struct cd_softc *softc;
897 	struct bio *bp;
898 	struct ccb_scsiio *csio;
899 
900 	cam_periph_assert(periph, MA_OWNED);
901 	softc = (struct cd_softc *)periph->softc;
902 
903 	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n"));
904 
905 	switch (softc->state) {
906 	case CD_STATE_NORMAL:
907 	{
908 		bp = bioq_first(&softc->bio_queue);
909 		if (bp == NULL) {
910 			if (softc->tur) {
911 				softc->tur = 0;
912 				csio = &start_ccb->csio;
913 				scsi_test_unit_ready(csio,
914 				     /*retries*/ cd_retry_count,
915 				     cddone,
916 				     MSG_SIMPLE_Q_TAG,
917 				     SSD_FULL_SIZE,
918 				     cd_timeout);
919 				start_ccb->ccb_h.ccb_bp = NULL;
920 				start_ccb->ccb_h.ccb_state = CD_CCB_TUR;
921 				xpt_action(start_ccb);
922 			} else
923 				xpt_release_ccb(start_ccb);
924 		} else {
925 			if (softc->tur) {
926 				softc->tur = 0;
927 				cam_periph_release_locked(periph);
928 			}
929 			bioq_remove(&softc->bio_queue, bp);
930 
931 			if ((bp->bio_cmd != BIO_READ) &&
932 			    (bp->bio_cmd != BIO_WRITE)) {
933 				biofinish(bp, NULL, EOPNOTSUPP);
934 				xpt_release_ccb(start_ccb);
935 				return;
936 			}
937 
938 			scsi_read_write(&start_ccb->csio,
939 					/*retries*/ cd_retry_count,
940 					/* cbfcnp */ cddone,
941 					MSG_SIMPLE_Q_TAG,
942 					/* read */bp->bio_cmd == BIO_READ ?
943 					SCSI_RW_READ : SCSI_RW_WRITE,
944 					/* byte2 */ 0,
945 					/* minimum_cmd_size */ 10,
946 					/* lba */ bp->bio_offset /
947 					  softc->params.blksize,
948 					bp->bio_bcount / softc->params.blksize,
949 					/* data_ptr */ bp->bio_data,
950 					/* dxfer_len */ bp->bio_bcount,
951 					/* sense_len */ cd_retry_count ?
952 					  SSD_FULL_SIZE : SF_NO_PRINT,
953 					/* timeout */ cd_timeout);
954 			/* Use READ CD command for audio tracks. */
955 			if (softc->params.blksize == 2352) {
956 				start_ccb->csio.cdb_io.cdb_bytes[0] = READ_CD;
957 				start_ccb->csio.cdb_io.cdb_bytes[9] = 0xf8;
958 				start_ccb->csio.cdb_io.cdb_bytes[10] = 0;
959 				start_ccb->csio.cdb_io.cdb_bytes[11] = 0;
960 				start_ccb->csio.cdb_len = 12;
961 			}
962 			start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO;
963 
964 			LIST_INSERT_HEAD(&softc->pending_ccbs,
965 					 &start_ccb->ccb_h, periph_links.le);
966 			softc->outstanding_cmds++;
967 
968 			/* We expect a unit attention from this device */
969 			if ((softc->flags & CD_FLAG_RETRY_UA) != 0) {
970 				start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA;
971 				softc->flags &= ~CD_FLAG_RETRY_UA;
972 			}
973 
974 			start_ccb->ccb_h.ccb_bp = bp;
975 			bp = bioq_first(&softc->bio_queue);
976 
977 			xpt_action(start_ccb);
978 		}
979 		if (bp != NULL || softc->tur) {
980 			/* Have more work to do, so ensure we stay scheduled */
981 			xpt_schedule(periph, CAM_PRIORITY_NORMAL);
982 		}
983 		break;
984 	}
985 	case CD_STATE_PROBE:
986 	case CD_STATE_MEDIA_SIZE:
987 	{
988 		struct scsi_read_capacity_data *rcap;
989 
990 		rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap),
991 		    M_SCSICD, M_NOWAIT | M_ZERO);
992 		if (rcap == NULL) {
993 			xpt_print(periph->path,
994 			    "%s: Couldn't malloc read_capacity data\n",
995 			    __func__);
996 			xpt_release_ccb(start_ccb);
997 			/*
998 			 * We can't probe because we can't allocate memory,
999 			 * so invalidate the peripheral.  The system probably
1000 			 * has larger problems at this stage.  If we've
1001 			 * already probed (and are re-probing capacity), we
1002 			 * don't need to invalidate.
1003 			 *
1004 			 * XXX KDM need to reset probe state and kick out
1005 			 * pending I/O.
1006 			 */
1007 			if (softc->state == CD_STATE_PROBE)
1008 				cam_periph_invalidate(periph);
1009 			break;
1010 		}
1011 
1012 		/*
1013 		 * Set the default capacity and sector size to something that
1014 		 * GEOM can handle.  This will get reset when a read capacity
1015 		 * completes successfully.
1016 		 */
1017 		softc->disk->d_sectorsize = 2048;
1018 		softc->disk->d_mediasize = 0;
1019 
1020 		csio = &start_ccb->csio;
1021 		scsi_read_capacity(csio,
1022 				   /*retries*/ cd_retry_count,
1023 				   cddone,
1024 				   MSG_SIMPLE_Q_TAG,
1025 				   rcap,
1026 				   SSD_FULL_SIZE,
1027 				   /*timeout*/20000);
1028 		start_ccb->ccb_h.ccb_bp = NULL;
1029 		if (softc->state == CD_STATE_PROBE)
1030 			start_ccb->ccb_h.ccb_state = CD_CCB_PROBE;
1031 		else
1032 			start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_SIZE;
1033 		xpt_action(start_ccb);
1034 		break;
1035 	}
1036 	case CD_STATE_MEDIA_ALLOW:
1037 	case CD_STATE_MEDIA_PREVENT:
1038 	{
1039 		/*
1040 		 * If the CD is already locked, we don't need to do this.
1041 		 * Move on to the capacity check.
1042 		 */
1043 		if (softc->state == CD_STATE_MEDIA_PREVENT
1044 		 && (softc->flags & CD_FLAG_DISC_LOCKED) != 0) {
1045 			softc->state = CD_STATE_MEDIA_SIZE;
1046 			xpt_release_ccb(start_ccb);
1047 			xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1048 			break;
1049 		}
1050 
1051 		scsi_prevent(&start_ccb->csio,
1052 			     /*retries*/ cd_retry_count,
1053 			     /*cbfcnp*/ cddone,
1054 			     /*tag_action*/ MSG_SIMPLE_Q_TAG,
1055 			     /*action*/ (softc->state == CD_STATE_MEDIA_ALLOW) ?
1056 					PR_ALLOW : PR_PREVENT,
1057 			     /*sense_len*/ SSD_FULL_SIZE,
1058 			     /*timeout*/ 60000);
1059 
1060 		start_ccb->ccb_h.ccb_bp = NULL;
1061 		if (softc->state == CD_STATE_MEDIA_ALLOW)
1062 			start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_ALLOW;
1063 		else
1064 			start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_PREVENT;
1065 		xpt_action(start_ccb);
1066 		break;
1067 	}
1068 	case CD_STATE_MEDIA_TOC_HDR: {
1069 		struct ioc_toc_header *toch;
1070 
1071 		bzero(&softc->toc, sizeof(softc->toc));
1072 
1073 		toch = &softc->toc.header;
1074 
1075 		scsi_read_toc(&start_ccb->csio,
1076 			      /*retries*/ cd_retry_count,
1077 			      /*cbfcnp*/ cddone,
1078 			      /*tag_action*/ MSG_SIMPLE_Q_TAG,
1079 			      /*byte1_flags*/ 0,
1080 			      /*format*/ SRTOC_FORMAT_TOC,
1081 			      /*track*/ 0,
1082 			      /*data_ptr*/ (uint8_t *)toch,
1083 			      /*dxfer_len*/ sizeof(*toch),
1084 			      /*sense_len*/ SSD_FULL_SIZE,
1085 			      /*timeout*/ 50000);
1086 		start_ccb->ccb_h.ccb_bp = NULL;
1087 		start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_TOC_HDR;
1088 		xpt_action(start_ccb);
1089 		break;
1090 	}
1091 	case CD_STATE_MEDIA_TOC_FULL: {
1092 		bzero(&softc->toc, sizeof(softc->toc));
1093 
1094 		scsi_read_toc(&start_ccb->csio,
1095 			      /*retries*/ cd_retry_count,
1096 			      /*cbfcnp*/ cddone,
1097 			      /*tag_action*/ MSG_SIMPLE_Q_TAG,
1098 			      /*byte1_flags*/ 0,
1099 			      /*format*/ SRTOC_FORMAT_TOC,
1100 			      /*track*/ 0,
1101 			      /*data_ptr*/ (uint8_t *)&softc->toc,
1102 			      /*dxfer_len*/ softc->toc_read_len ?
1103 					    softc->toc_read_len :
1104 					    sizeof(softc->toc),
1105 			      /*sense_len*/ SSD_FULL_SIZE,
1106 			      /*timeout*/ 50000);
1107 		start_ccb->ccb_h.ccb_bp = NULL;
1108 		start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_TOC_FULL;
1109 		xpt_action(start_ccb);
1110 		break;
1111 	}
1112 	case CD_STATE_MEDIA_TOC_LEAD: {
1113 		struct cd_toc_single *leadout;
1114 
1115 		leadout = &softc->leadout;
1116 		bzero(leadout, sizeof(*leadout));
1117 
1118 		scsi_read_toc(&start_ccb->csio,
1119 			      /*retries*/ cd_retry_count,
1120 			      /*cbfcnp*/ cddone,
1121 			      /*tag_action*/ MSG_SIMPLE_Q_TAG,
1122 			      /*byte1_flags*/ CD_MSF,
1123 			      /*format*/ SRTOC_FORMAT_TOC,
1124 			      /*track*/ LEADOUT,
1125 			      /*data_ptr*/ (uint8_t *)leadout,
1126 			      /*dxfer_len*/ sizeof(*leadout),
1127 			      /*sense_len*/ SSD_FULL_SIZE,
1128 			      /*timeout*/ 50000);
1129 		start_ccb->ccb_h.ccb_bp = NULL;
1130 		start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_TOC_LEAD;
1131 		xpt_action(start_ccb);
1132 		break;
1133 	}
1134 	}
1135 }
1136 
1137 static void
1138 cddone(struct cam_periph *periph, union ccb *done_ccb)
1139 {
1140 	struct cd_softc *softc;
1141 	struct ccb_scsiio *csio;
1142 
1143 	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n"));
1144 
1145 	cam_periph_assert(periph, MA_OWNED);
1146 	softc = (struct cd_softc *)periph->softc;
1147 	csio = &done_ccb->csio;
1148 
1149 	switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) {
1150 	case CD_CCB_BUFFER_IO:
1151 	{
1152 		struct bio	*bp;
1153 		int		error;
1154 
1155 		bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
1156 		error = 0;
1157 
1158 		if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1159 			int sf;
1160 
1161 			if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0)
1162 				sf = SF_RETRY_UA;
1163 			else
1164 				sf = 0;
1165 
1166 			error = cderror(done_ccb, CAM_RETRY_SELTO, sf);
1167 			if (error == ERESTART) {
1168 				/*
1169 				 * A retry was scheuled, so
1170 				 * just return.
1171 				 */
1172 				return;
1173 			}
1174 		}
1175 
1176 		if (error != 0) {
1177 			xpt_print(periph->path,
1178 			    "cddone: got error %#x back\n", error);
1179 			bioq_flush(&softc->bio_queue, NULL, EIO);
1180 			bp->bio_resid = bp->bio_bcount;
1181 			bp->bio_error = error;
1182 			bp->bio_flags |= BIO_ERROR;
1183 			if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1184 				cam_release_devq(done_ccb->ccb_h.path,
1185 					 /*relsim_flags*/0,
1186 					 /*reduction*/0,
1187 					 /*timeout*/0,
1188 					 /*getcount_only*/0);
1189 
1190 		} else {
1191 			bp->bio_resid = csio->resid;
1192 			bp->bio_error = 0;
1193 			if (bp->bio_resid != 0) {
1194 				/*
1195 				 * Short transfer ???
1196 				 * XXX: not sure this is correct for partial
1197 				 * transfers at EOM
1198 				 */
1199 				bp->bio_flags |= BIO_ERROR;
1200 			}
1201 		}
1202 
1203 		LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1204 		softc->outstanding_cmds--;
1205 
1206 		biofinish(bp, NULL, 0);
1207 		break;
1208 	}
1209 	case CD_CCB_PROBE:
1210 	{
1211 		struct	   scsi_read_capacity_data *rdcap;
1212 		char	   *announce_buf;
1213 		struct	   cd_params *cdp;
1214 		int error;
1215 
1216 		cdp = &softc->params;
1217 		announce_buf = softc->announce_temp;
1218 		bzero(announce_buf, CD_ANNOUNCETMP_SZ);
1219 
1220 		rdcap = (struct scsi_read_capacity_data *)csio->data_ptr;
1221 
1222 		cdp->disksize = scsi_4btoul (rdcap->addr) + 1;
1223 		cdp->blksize = scsi_4btoul (rdcap->length);
1224 
1225 		/*
1226 		 * Retry any UNIT ATTENTION type errors.  They
1227 		 * are expected at boot.
1228 		 */
1229 		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP ||
1230 		    (error = cderror(done_ccb, CAM_RETRY_SELTO,
1231 				SF_RETRY_UA | SF_NO_PRINT)) == 0) {
1232 			snprintf(announce_buf, CD_ANNOUNCETMP_SZ,
1233 			    "%juMB (%ju %u byte sectors)",
1234 			    ((uintmax_t)cdp->disksize * cdp->blksize) /
1235 			     (1024 * 1024),
1236 			    (uintmax_t)cdp->disksize, cdp->blksize);
1237 		} else {
1238 			if (error == ERESTART) {
1239 				/*
1240 				 * A retry was scheuled, so
1241 				 * just return.
1242 				 */
1243 				return;
1244 			} else {
1245 				int asc, ascq;
1246 				int sense_key, error_code;
1247 				int have_sense;
1248 				cam_status status;
1249 				struct ccb_getdev cgd;
1250 
1251 				/* Don't wedge this device's queue */
1252 				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1253 					cam_release_devq(done_ccb->ccb_h.path,
1254 						 /*relsim_flags*/0,
1255 						 /*reduction*/0,
1256 						 /*timeout*/0,
1257 						 /*getcount_only*/0);
1258 
1259 				status = done_ccb->ccb_h.status;
1260 
1261 				bzero(&cgd, sizeof(cgd));
1262 				xpt_setup_ccb(&cgd.ccb_h,
1263 					      done_ccb->ccb_h.path,
1264 					      CAM_PRIORITY_NORMAL);
1265 				cgd.ccb_h.func_code = XPT_GDEV_TYPE;
1266 				xpt_action((union ccb *)&cgd);
1267 
1268 				if (scsi_extract_sense_ccb(done_ccb,
1269 				    &error_code, &sense_key, &asc, &ascq))
1270 					have_sense = TRUE;
1271 				else
1272 					have_sense = FALSE;
1273 
1274 				/*
1275 				 * Attach to anything that claims to be a
1276 				 * CDROM or WORM device, as long as it
1277 				 * doesn't return a "Logical unit not
1278 				 * supported" (0x25) error.
1279 				 */
1280 				if ((have_sense) && (asc != 0x25)
1281 				 && (error_code == SSD_CURRENT_ERROR
1282 				  || error_code == SSD_DESC_CURRENT_ERROR)) {
1283 					const char *sense_key_desc;
1284 					const char *asc_desc;
1285 
1286 					scsi_sense_desc(sense_key, asc, ascq,
1287 							&cgd.inq_data,
1288 							&sense_key_desc,
1289 							&asc_desc);
1290 					snprintf(announce_buf,
1291 					    CD_ANNOUNCETMP_SZ,
1292 						"Attempt to query device "
1293 						"size failed: %s, %s",
1294 						sense_key_desc,
1295 						asc_desc);
1296 				} else if ((have_sense == 0)
1297 				      && ((status & CAM_STATUS_MASK) ==
1298 					   CAM_SCSI_STATUS_ERROR)
1299 				      && (csio->scsi_status ==
1300 					  SCSI_STATUS_BUSY)) {
1301 					snprintf(announce_buf,
1302 					    CD_ANNOUNCETMP_SZ,
1303 					    "Attempt to query device "
1304 					    "size failed: SCSI Status: %s",
1305 					    scsi_status_string(csio));
1306 				} else if (SID_TYPE(&cgd.inq_data) == T_CDROM) {
1307 					/*
1308 					 * We only print out an error for
1309 					 * CDROM type devices.  For WORM
1310 					 * devices, we don't print out an
1311 					 * error since a few WORM devices
1312 					 * don't support CDROM commands.
1313 					 * If we have sense information, go
1314 					 * ahead and print it out.
1315 					 * Otherwise, just say that we
1316 					 * couldn't attach.
1317 					 */
1318 
1319 					/*
1320 					 * Just print out the error, not
1321 					 * the full probe message, when we
1322 					 * don't attach.
1323 					 */
1324 					if (have_sense)
1325 						scsi_sense_print(
1326 							&done_ccb->csio);
1327 					else {
1328 						xpt_print(periph->path,
1329 						    "got CAM status %#x\n",
1330 						    done_ccb->ccb_h.status);
1331 					}
1332 					xpt_print(periph->path, "fatal error, "
1333 					    "failed to attach to device\n");
1334 					/*
1335 					 * Invalidate this peripheral.
1336 					 */
1337 					cam_periph_invalidate(periph);
1338 
1339 					announce_buf = NULL;
1340 				} else {
1341 					/*
1342 					 * Invalidate this peripheral.
1343 					 */
1344 					cam_periph_invalidate(periph);
1345 					announce_buf = NULL;
1346 				}
1347 			}
1348 		}
1349 		free(rdcap, M_SCSICD);
1350 		if (announce_buf != NULL) {
1351 			struct sbuf sb;
1352 
1353 			sbuf_new(&sb, softc->announce_buf, CD_ANNOUNCE_SZ,
1354 			    SBUF_FIXEDLEN);
1355 			xpt_announce_periph_sbuf(periph, &sb, announce_buf);
1356 			xpt_announce_quirks_sbuf(periph, &sb, softc->quirks,
1357 			    CD_Q_BIT_STRING);
1358 			sbuf_finish(&sb);
1359 			sbuf_putbuf(&sb);
1360 
1361 			/*
1362 			 * Create our sysctl variables, now that we know
1363 			 * we have successfully attached.
1364 			 */
1365 			taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task);
1366 		}
1367 		softc->state = CD_STATE_NORMAL;
1368 		/*
1369 		 * Since our peripheral may be invalidated by an error
1370 		 * above or an external event, we must release our CCB
1371 		 * before releasing the probe lock on the peripheral.
1372 		 * The peripheral will only go away once the last lock
1373 		 * is removed, and we need it around for the CCB release
1374 		 * operation.
1375 		 */
1376 		xpt_release_ccb(done_ccb);
1377 
1378 		/*
1379 		 * We'll release this reference once GEOM calls us back via
1380 		 * cddiskgonecb(), telling us that our provider has been freed.
1381 		 */
1382 		if (cam_periph_acquire(periph) == 0)
1383 			disk_create(softc->disk, DISK_VERSION);
1384 
1385 		cam_periph_release_boot(periph);
1386 		cam_periph_release_locked(periph);
1387 		return;
1388 	}
1389 	case CD_CCB_TUR:
1390 	{
1391 		if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1392 			if (cderror(done_ccb, CAM_RETRY_SELTO,
1393 			    SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) ==
1394 			    ERESTART)
1395 				return;
1396 			if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1397 				cam_release_devq(done_ccb->ccb_h.path,
1398 						 /*relsim_flags*/0,
1399 						 /*reduction*/0,
1400 						 /*timeout*/0,
1401 						 /*getcount_only*/0);
1402 		}
1403 		xpt_release_ccb(done_ccb);
1404 		cam_periph_release_locked(periph);
1405 		return;
1406 	}
1407 	case CD_CCB_MEDIA_ALLOW:
1408 	case CD_CCB_MEDIA_PREVENT:
1409 	{
1410 		int error;
1411 		int is_prevent;
1412 
1413 		error = 0;
1414 
1415 		if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1416 			error = cderror(done_ccb, CAM_RETRY_SELTO,
1417 			    SF_RETRY_UA | SF_NO_PRINT);
1418 		}
1419 		if (error == ERESTART)
1420 			return;
1421 		if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1422 			cam_release_devq(done_ccb->ccb_h.path,
1423 					 /*relsim_flags*/0,
1424 					 /*reduction*/0,
1425 					 /*timeout*/0,
1426 					 /*getcount_only*/0);
1427 
1428 		/*
1429 		 * Note that just like the original cdcheckmedia(), we do
1430 		 * a prevent without failing the whole operation if the
1431 		 * prevent fails.  We try, but keep going if it doesn't
1432 		 * work.
1433 		 */
1434 
1435 		if ((done_ccb->ccb_h.ccb_state & CD_CCB_TYPE_MASK) ==
1436 		     CD_CCB_MEDIA_PREVENT)
1437 			is_prevent = 1;
1438 		else
1439 			is_prevent = 0;
1440 
1441 		xpt_release_ccb(done_ccb);
1442 
1443 		if (is_prevent != 0) {
1444 			if (error == 0)
1445 				softc->flags |= CD_FLAG_DISC_LOCKED;
1446 			else
1447 				softc->flags &= ~CD_FLAG_DISC_LOCKED;
1448 			softc->state = CD_STATE_MEDIA_SIZE;
1449 			xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1450 		} else {
1451 			if (error == 0)
1452 				softc->flags &= ~CD_FLAG_DISC_LOCKED;
1453 			softc->state = CD_STATE_NORMAL;
1454 			if (bioq_first(&softc->bio_queue) != NULL)
1455 				xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1456 		}
1457 		return;
1458 	}
1459 	case CD_CCB_MEDIA_SIZE:
1460 	{
1461 		struct scsi_read_capacity_data *rdcap;
1462 		int error;
1463 
1464 		error = 0;
1465 		if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1466 			error = cderror(done_ccb, CAM_RETRY_SELTO,
1467 			    SF_RETRY_UA | SF_NO_PRINT);
1468 		}
1469 		if (error == ERESTART)
1470 			return;
1471 		if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1472 			cam_release_devq(done_ccb->ccb_h.path,
1473 					 /*relsim_flags*/0,
1474 					 /*reduction*/0,
1475 					 /*timeout*/0,
1476 					 /*getcount_only*/0);
1477 		rdcap = (struct scsi_read_capacity_data *)csio->data_ptr;
1478 
1479 		if (error == 0) {
1480 			softc->params.disksize =scsi_4btoul(rdcap->addr) + 1;
1481 			softc->params.blksize  = scsi_4btoul(rdcap->length);
1482 
1483 			/* Make sure we got at least some block size. */
1484 			if (softc->params.blksize == 0)
1485 				error = EIO;
1486 			/*
1487 			 * SCSI-3 mandates that the reported blocksize shall be
1488 			 * 2048.  Older drives sometimes report funny values,
1489 			 * trim it down to 2048, or other parts of the kernel
1490 			 * will get confused.
1491 			 *
1492 			 * XXX we leave drives alone that might report 512
1493 			 * bytes, as well as drives reporting more weird
1494 			 * sizes like perhaps 4K.
1495 			 */
1496 			if (softc->params.blksize > 2048
1497 			 && softc->params.blksize <= 2352)
1498 				softc->params.blksize = 2048;
1499 		}
1500 		free(rdcap, M_SCSICD);
1501 
1502 		if (error == 0) {
1503 			softc->disk->d_sectorsize = softc->params.blksize;
1504 			softc->disk->d_mediasize =
1505 			    (off_t)softc->params.blksize *
1506 			    softc->params.disksize;
1507 			softc->flags |= CD_FLAG_SAW_MEDIA | CD_FLAG_VALID_MEDIA;
1508 			softc->state = CD_STATE_MEDIA_TOC_HDR;
1509 		} else {
1510 			softc->flags &= ~(CD_FLAG_VALID_MEDIA |
1511 					  CD_FLAG_VALID_TOC);
1512 			bioq_flush(&softc->bio_queue, NULL, EINVAL);
1513 			softc->state = CD_STATE_MEDIA_ALLOW;
1514 			cdmediaprobedone(periph);
1515 		}
1516 		xpt_release_ccb(done_ccb);
1517 		xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1518 		return;
1519 	}
1520 	case CD_CCB_MEDIA_TOC_HDR:
1521 	case CD_CCB_MEDIA_TOC_FULL:
1522 	case CD_CCB_MEDIA_TOC_LEAD:
1523 	{
1524 		int error;
1525 		struct ioc_toc_header *toch;
1526 		int num_entries;
1527 		int cdindex;
1528 
1529 		error = 0;
1530 
1531 		if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1532 			error = cderror(done_ccb, CAM_RETRY_SELTO,
1533 			    SF_RETRY_UA | SF_NO_PRINT);
1534 		}
1535 		if (error == ERESTART)
1536 			return;
1537 
1538 		if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1539 			cam_release_devq(done_ccb->ccb_h.path,
1540 					 /*relsim_flags*/0,
1541 					 /*reduction*/0,
1542 					 /*timeout*/0,
1543 					 /*getcount_only*/0);
1544 
1545 		/*
1546 		 * We will get errors here for media that doesn't have a table
1547 		 * of contents.  According to the MMC-3 spec: "When a Read
1548 		 * TOC/PMA/ATIP command is presented for a DDCD/CD-R/RW media,
1549 		 * where the first TOC has not been recorded (no complete
1550 		 * session) and the Format codes 0000b, 0001b, or 0010b are
1551 		 * specified, this command shall be rejected with an INVALID
1552 		 * FIELD IN CDB.  Devices that are not capable of reading an
1553 		 * incomplete session on DDC/CD-R/RW media shall report
1554 		 * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT."
1555 		 *
1556 		 * So this isn't fatal if we can't read the table of contents,
1557 		 * it just means that the user won't be able to issue the
1558 		 * play tracks ioctl, and likely lots of other stuff won't
1559 		 * work either.  They need to burn the CD before we can do
1560 		 * a whole lot with it.  So we don't print anything here if
1561 		 * we get an error back.
1562 		 *
1563 		 * We also bail out if the drive doesn't at least give us
1564 		 * the full TOC header.
1565 		 */
1566 		if ((error != 0)
1567 		 || ((csio->dxfer_len - csio->resid) <
1568 		      sizeof(struct ioc_toc_header))) {
1569 			softc->flags &= ~CD_FLAG_VALID_TOC;
1570 			bzero(&softc->toc, sizeof(softc->toc));
1571 			/*
1572 			 * Failing the TOC read is not an error.
1573 			 */
1574 			softc->state = CD_STATE_NORMAL;
1575 			xpt_release_ccb(done_ccb);
1576 
1577 			cdmediaprobedone(periph);
1578 
1579 			/*
1580 			 * Go ahead and schedule I/O execution if there is
1581 			 * anything in the queue.  It'll probably get
1582 			 * kicked out with an error.
1583 			 */
1584 			if (bioq_first(&softc->bio_queue) != NULL)
1585 				xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1586 			return;
1587 		}
1588 
1589 		/*
1590 		 * Note that this is NOT the storage location used for the
1591 		 * leadout!
1592 		 */
1593 		toch = &softc->toc.header;
1594 
1595 		if (softc->quirks & CD_Q_BCD_TRACKS) {
1596 			toch->starting_track = bcd2bin(toch->starting_track);
1597 			toch->ending_track = bcd2bin(toch->ending_track);
1598 		}
1599 
1600 		/* Number of TOC entries, plus leadout */
1601 		num_entries = toch->ending_track - toch->starting_track + 2;
1602 		cdindex = toch->starting_track + num_entries - 1;
1603 
1604 		if ((done_ccb->ccb_h.ccb_state & CD_CCB_TYPE_MASK) ==
1605 		     CD_CCB_MEDIA_TOC_HDR) {
1606 			if (num_entries <= 0 ||
1607 			    num_entries > nitems(softc->toc.entries)) {
1608 				softc->flags &= ~CD_FLAG_VALID_TOC;
1609 				bzero(&softc->toc, sizeof(softc->toc));
1610 				/*
1611 				 * Failing the TOC read is not an error.
1612 				 */
1613 				softc->state = CD_STATE_NORMAL;
1614 				xpt_release_ccb(done_ccb);
1615 
1616 				cdmediaprobedone(periph);
1617 
1618 				/*
1619 				 * Go ahead and schedule I/O execution if
1620 				 * there is anything in the queue.  It'll
1621 				 * probably get kicked out with an error.
1622 				 */
1623 				if (bioq_first(&softc->bio_queue) != NULL)
1624 					xpt_schedule(periph,
1625 					    CAM_PRIORITY_NORMAL);
1626 			} else {
1627 				softc->toc_read_len = num_entries *
1628 				    sizeof(struct cd_toc_entry);
1629 				softc->toc_read_len += sizeof(*toch);
1630 
1631 				softc->state = CD_STATE_MEDIA_TOC_FULL;
1632 				xpt_release_ccb(done_ccb);
1633 				xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1634 			}
1635 
1636 			return;
1637 		} else if ((done_ccb->ccb_h.ccb_state & CD_CCB_TYPE_MASK) ==
1638 			    CD_CCB_MEDIA_TOC_LEAD) {
1639 			struct cd_toc_single *leadout;
1640 
1641 			leadout = (struct cd_toc_single *)csio->data_ptr;
1642 			softc->toc.entries[cdindex - toch->starting_track] =
1643 			    leadout->entry;
1644 		} else if (((done_ccb->ccb_h.ccb_state & CD_CCB_TYPE_MASK) ==
1645 			    CD_CCB_MEDIA_TOC_FULL)
1646 			&& (cdindex == toch->ending_track + 1)) {
1647 			/*
1648 			 * XXX KDM is this necessary?  Probably only if the
1649 			 * drive doesn't return leadout information with the
1650 			 * table of contents.
1651 			 */
1652 			softc->state = CD_STATE_MEDIA_TOC_LEAD;
1653 			xpt_release_ccb(done_ccb);
1654 			xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1655 			return;
1656 		}
1657 
1658 		if (softc->quirks & CD_Q_BCD_TRACKS) {
1659 			for (cdindex = 0; cdindex < num_entries - 1; cdindex++){
1660 				softc->toc.entries[cdindex].track =
1661 				    bcd2bin(softc->toc.entries[cdindex].track);
1662 			}
1663 		}
1664 
1665 		softc->flags |= CD_FLAG_VALID_TOC;
1666 		/* If the first track is audio, correct sector size. */
1667 		if ((softc->toc.entries[0].control & 4) == 0) {
1668 			softc->disk->d_sectorsize =softc->params.blksize = 2352;
1669 			softc->disk->d_mediasize =
1670 			    (off_t)softc->params.blksize *
1671 			    softc->params.disksize;
1672 		}
1673 		softc->state = CD_STATE_NORMAL;
1674 
1675 		/*
1676 		 * We unconditionally (re)set the blocksize each time the
1677 		 * CD device is opened.  This is because the CD can change,
1678 		 * and therefore the blocksize might change.
1679 		 * XXX problems here if some slice or partition is still
1680 		 * open with the old size?
1681 		 */
1682 		if ((softc->disk->d_devstat->flags & DEVSTAT_BS_UNAVAILABLE)!=0)
1683 			softc->disk->d_devstat->flags &=
1684 			    ~DEVSTAT_BS_UNAVAILABLE;
1685 		softc->disk->d_devstat->block_size = softc->params.blksize;
1686 
1687 		xpt_release_ccb(done_ccb);
1688 
1689 		cdmediaprobedone(periph);
1690 
1691 		if (bioq_first(&softc->bio_queue) != NULL)
1692 			xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1693 		return;
1694 	}
1695 	default:
1696 		break;
1697 	}
1698 	xpt_release_ccb(done_ccb);
1699 }
1700 
1701 static union cd_pages *
1702 cdgetpage(struct cd_mode_params *mode_params)
1703 {
1704 	union cd_pages *page;
1705 
1706 	if (mode_params->cdb_size == 10)
1707 		page = (union cd_pages *)find_mode_page_10(
1708 			(struct scsi_mode_header_10 *)mode_params->mode_buf);
1709 	else
1710 		page = (union cd_pages *)find_mode_page_6(
1711 			(struct scsi_mode_header_6 *)mode_params->mode_buf);
1712 
1713 	return (page);
1714 }
1715 
1716 static int
1717 cdgetpagesize(int page_num)
1718 {
1719 	u_int i;
1720 
1721 	for (i = 0; i < nitems(cd_page_size_table); i++) {
1722 		if (cd_page_size_table[i].page == page_num)
1723 			return (cd_page_size_table[i].page_size);
1724 	}
1725 
1726 	return (-1);
1727 }
1728 
1729 static struct cd_toc_entry *
1730 te_data_get_ptr(void *irtep, u_long cmd)
1731 {
1732 	union {
1733 		struct ioc_read_toc_entry irte;
1734 #ifdef COMPAT_FREEBSD32
1735 		struct ioc_read_toc_entry32 irte32;
1736 #endif
1737 	} *irteup;
1738 
1739 	irteup = irtep;
1740 	switch (IOCPARM_LEN(cmd)) {
1741 	case sizeof(irteup->irte):
1742 		return (irteup->irte.data);
1743 #ifdef COMPAT_FREEBSD32
1744 	case sizeof(irteup->irte32):
1745 		return ((struct cd_toc_entry *)(uintptr_t)irteup->irte32.data);
1746 #endif
1747 	default:
1748 		panic("Unhandled ioctl command %ld", cmd);
1749 	}
1750 }
1751 
1752 static int
1753 cdioctl(struct disk *dp, u_long cmd, void *addr, int flag, struct thread *td)
1754 {
1755 
1756 	struct 	cam_periph *periph;
1757 	struct	cd_softc *softc;
1758 	int	error = 0;
1759 
1760 	periph = (struct cam_periph *)dp->d_drv1;
1761 	cam_periph_lock(periph);
1762 
1763 	softc = (struct cd_softc *)periph->softc;
1764 
1765 	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
1766 	    ("cdioctl(%#lx)\n", cmd));
1767 
1768 	if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) {
1769 		cam_periph_unlock(periph);
1770 		cam_periph_release(periph);
1771 		return (error);
1772 	}
1773 
1774 	/*
1775 	 * If we don't have media loaded, check for it.  If still don't
1776 	 * have media loaded, we can only do a load or eject.
1777 	 *
1778 	 * We only care whether media is loaded if this is a cd-specific ioctl
1779 	 * (thus the IOCGROUP check below).  Note that this will break if
1780 	 * anyone adds any ioctls into the switch statement below that don't
1781 	 * have their ioctl group set to 'c'.
1782 	 */
1783 	if (((softc->flags & CD_FLAG_VALID_MEDIA) == 0)
1784 	 && ((cmd != CDIOCCLOSE)
1785 	  && (cmd != CDIOCEJECT))
1786 	 && (IOCGROUP(cmd) == 'c')) {
1787 		error = cdcheckmedia(periph, /*do_wait*/ 1);
1788 		if (error != 0) {
1789 			cam_periph_unhold(periph);
1790 			cam_periph_unlock(periph);
1791 			return (error);
1792 		}
1793 	}
1794 	/*
1795 	 * Drop the lock here so later mallocs can use WAITOK.  The periph
1796 	 * is essentially locked still with the cam_periph_hold call above.
1797 	 */
1798 	cam_periph_unlock(periph);
1799 
1800 	switch (cmd) {
1801 	case CDIOCPLAYTRACKS:
1802 		{
1803 			struct ioc_play_track *args
1804 			    = (struct ioc_play_track *) addr;
1805 			struct cd_mode_params params;
1806 			union cd_pages *page;
1807 
1808 			params.alloc_len = sizeof(union cd_mode_data_6_10);
1809 			params.mode_buf = malloc(params.alloc_len, M_SCSICD,
1810 						 M_WAITOK | M_ZERO);
1811 
1812 			cam_periph_lock(periph);
1813 			CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1814 				  ("trying to do CDIOCPLAYTRACKS\n"));
1815 
1816 			error = cdgetmode(periph, &params, AUDIO_PAGE);
1817 			if (error) {
1818 				free(params.mode_buf, M_SCSICD);
1819 				cam_periph_unlock(periph);
1820 				break;
1821 			}
1822 			page = cdgetpage(&params);
1823 
1824 			page->audio.flags &= ~CD_PA_SOTC;
1825 			page->audio.flags |= CD_PA_IMMED;
1826 			error = cdsetmode(periph, &params);
1827 			free(params.mode_buf, M_SCSICD);
1828 			if (error) {
1829 				cam_periph_unlock(periph);
1830 				break;
1831 			}
1832 
1833 			/*
1834 			 * This was originally implemented with the PLAY
1835 			 * AUDIO TRACK INDEX command, but that command was
1836 			 * deprecated after SCSI-2.  Most (all?) SCSI CDROM
1837 			 * drives support it but ATAPI and ATAPI-derivative
1838 			 * drives don't seem to support it.  So we keep a
1839 			 * cache of the table of contents and translate
1840 			 * track numbers to MSF format.
1841 			 */
1842 			if (softc->flags & CD_FLAG_VALID_TOC) {
1843 				union msf_lba *sentry, *eentry;
1844 				struct ioc_toc_header *th;
1845 				int st, et;
1846 
1847 				th = &softc->toc.header;
1848 				if (args->end_track < th->ending_track + 1)
1849 					args->end_track++;
1850 				if (args->end_track > th->ending_track + 1)
1851 					args->end_track = th->ending_track + 1;
1852 				st = args->start_track - th->starting_track;
1853 				et = args->end_track - th->starting_track;
1854 				if (st < 0 || et < 0 ||
1855 				    st > th->ending_track - th->starting_track ||
1856 				    et > th->ending_track - th->starting_track) {
1857 					error = EINVAL;
1858 					cam_periph_unlock(periph);
1859 					break;
1860 				}
1861 				sentry = &softc->toc.entries[st].addr;
1862 				eentry = &softc->toc.entries[et].addr;
1863 				error = cdplaymsf(periph,
1864 						  sentry->msf.minute,
1865 						  sentry->msf.second,
1866 						  sentry->msf.frame,
1867 						  eentry->msf.minute,
1868 						  eentry->msf.second,
1869 						  eentry->msf.frame);
1870 			} else {
1871 				/*
1872 				 * If we don't have a valid TOC, try the
1873 				 * play track index command.  It is part of
1874 				 * the SCSI-2 spec, but was removed in the
1875 				 * MMC specs.  ATAPI and ATAPI-derived
1876 				 * drives don't support it.
1877 				 */
1878 				if (softc->quirks & CD_Q_BCD_TRACKS) {
1879 					args->start_track =
1880 						bin2bcd(args->start_track);
1881 					args->end_track =
1882 						bin2bcd(args->end_track);
1883 				}
1884 				error = cdplaytracks(periph,
1885 						     args->start_track,
1886 						     args->start_index,
1887 						     args->end_track,
1888 						     args->end_index);
1889 			}
1890 			cam_periph_unlock(periph);
1891 		}
1892 		break;
1893 	case CDIOCPLAYMSF:
1894 		{
1895 			struct ioc_play_msf *args
1896 				= (struct ioc_play_msf *) addr;
1897 			struct cd_mode_params params;
1898 			union cd_pages *page;
1899 
1900 			params.alloc_len = sizeof(union cd_mode_data_6_10);
1901 			params.mode_buf = malloc(params.alloc_len, M_SCSICD,
1902 						 M_WAITOK | M_ZERO);
1903 
1904 			cam_periph_lock(periph);
1905 			CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1906 				  ("trying to do CDIOCPLAYMSF\n"));
1907 
1908 			error = cdgetmode(periph, &params, AUDIO_PAGE);
1909 			if (error) {
1910 				free(params.mode_buf, M_SCSICD);
1911 				cam_periph_unlock(periph);
1912 				break;
1913 			}
1914 			page = cdgetpage(&params);
1915 
1916 			page->audio.flags &= ~CD_PA_SOTC;
1917 			page->audio.flags |= CD_PA_IMMED;
1918 			error = cdsetmode(periph, &params);
1919 			free(params.mode_buf, M_SCSICD);
1920 			if (error) {
1921 				cam_periph_unlock(periph);
1922 				break;
1923 			}
1924 			error = cdplaymsf(periph,
1925 					  args->start_m,
1926 					  args->start_s,
1927 					  args->start_f,
1928 					  args->end_m,
1929 					  args->end_s,
1930 					  args->end_f);
1931 			cam_periph_unlock(periph);
1932 		}
1933 		break;
1934 	case CDIOCPLAYBLOCKS:
1935 		{
1936 			struct ioc_play_blocks *args
1937 				= (struct ioc_play_blocks *) addr;
1938 			struct cd_mode_params params;
1939 			union cd_pages *page;
1940 
1941 			params.alloc_len = sizeof(union cd_mode_data_6_10);
1942 			params.mode_buf = malloc(params.alloc_len, M_SCSICD,
1943 						 M_WAITOK | M_ZERO);
1944 
1945 			cam_periph_lock(periph);
1946 			CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1947 				  ("trying to do CDIOCPLAYBLOCKS\n"));
1948 
1949 			error = cdgetmode(periph, &params, AUDIO_PAGE);
1950 			if (error) {
1951 				free(params.mode_buf, M_SCSICD);
1952 				cam_periph_unlock(periph);
1953 				break;
1954 			}
1955 			page = cdgetpage(&params);
1956 
1957 			page->audio.flags &= ~CD_PA_SOTC;
1958 			page->audio.flags |= CD_PA_IMMED;
1959 			error = cdsetmode(periph, &params);
1960 			free(params.mode_buf, M_SCSICD);
1961 			if (error) {
1962 				cam_periph_unlock(periph);
1963 				break;
1964 			}
1965 			error = cdplay(periph, args->blk, args->len);
1966 			cam_periph_unlock(periph);
1967 		}
1968 		break;
1969 	case CDIOCREADSUBCHANNEL:
1970 		{
1971 			struct ioc_read_subchannel *args
1972 				= (struct ioc_read_subchannel *) addr;
1973 			struct cd_sub_channel_info *data;
1974 			u_int32_t len = args->data_len;
1975 
1976 			data = malloc(sizeof(struct cd_sub_channel_info),
1977 				      M_SCSICD, M_WAITOK | M_ZERO);
1978 
1979 			cam_periph_lock(periph);
1980 			CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1981 				  ("trying to do CDIOCREADSUBCHANNEL\n"));
1982 
1983 			if ((len > sizeof(struct cd_sub_channel_info)) ||
1984 			    (len < sizeof(struct cd_sub_channel_header))) {
1985 				printf(
1986 					"scsi_cd: cdioctl: "
1987 					"cdioreadsubchannel: error, len=%d\n",
1988 					len);
1989 				error = EINVAL;
1990 				free(data, M_SCSICD);
1991 				cam_periph_unlock(periph);
1992 				break;
1993 			}
1994 
1995 			if (softc->quirks & CD_Q_BCD_TRACKS)
1996 				args->track = bin2bcd(args->track);
1997 
1998 			error = cdreadsubchannel(periph, args->address_format,
1999 				args->data_format, args->track, data, len);
2000 
2001 			if (error) {
2002 				free(data, M_SCSICD);
2003 				cam_periph_unlock(periph);
2004 				break;
2005 			}
2006 			if (softc->quirks & CD_Q_BCD_TRACKS)
2007 				data->what.track_info.track_number =
2008 				    bcd2bin(data->what.track_info.track_number);
2009 			len = min(len, ((data->header.data_len[0] << 8) +
2010 				data->header.data_len[1] +
2011 				sizeof(struct cd_sub_channel_header)));
2012 			cam_periph_unlock(periph);
2013 			error = copyout(data, args->data, len);
2014 			free(data, M_SCSICD);
2015 		}
2016 		break;
2017 
2018 	case CDIOREADTOCHEADER:
2019 		{
2020 			struct ioc_toc_header *th;
2021 
2022 			th = malloc(sizeof(struct ioc_toc_header), M_SCSICD,
2023 				    M_WAITOK | M_ZERO);
2024 
2025 			cam_periph_lock(periph);
2026 			CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2027 				  ("trying to do CDIOREADTOCHEADER\n"));
2028 
2029 			error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2030 				          sizeof (*th), /*sense_flags*/SF_NO_PRINT);
2031 			if (error) {
2032 				free(th, M_SCSICD);
2033 				cam_periph_unlock(periph);
2034 				break;
2035 			}
2036 			if (softc->quirks & CD_Q_BCD_TRACKS) {
2037 				/* we are going to have to convert the BCD
2038 				 * encoding on the cd to what is expected
2039 				 */
2040 				th->starting_track =
2041 					bcd2bin(th->starting_track);
2042 				th->ending_track = bcd2bin(th->ending_track);
2043 			}
2044 			th->len = ntohs(th->len);
2045 			bcopy(th, addr, sizeof(*th));
2046 			free(th, M_SCSICD);
2047 			cam_periph_unlock(periph);
2048 		}
2049 		break;
2050 	case CDIOREADTOCENTRYS:
2051 #ifdef COMPAT_FREEBSD32
2052 	case CDIOREADTOCENTRYS_32:
2053 #endif
2054 		{
2055 			struct cd_tocdata *data;
2056 			struct cd_toc_single *lead;
2057 			struct ioc_read_toc_entry *te =
2058 				(struct ioc_read_toc_entry *) addr;
2059 			struct ioc_toc_header *th;
2060 			u_int32_t len, readlen, idx, num;
2061 			u_int32_t starting_track = te->starting_track;
2062 
2063 			data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO);
2064 			lead = malloc(sizeof(*lead), M_SCSICD, M_WAITOK | M_ZERO);
2065 
2066 			cam_periph_lock(periph);
2067 			CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2068 				  ("trying to do CDIOREADTOCENTRYS\n"));
2069 
2070 			if (te->data_len < sizeof(struct cd_toc_entry)
2071 			 || (te->data_len % sizeof(struct cd_toc_entry)) != 0
2072 			 || (te->address_format != CD_MSF_FORMAT
2073 			  && te->address_format != CD_LBA_FORMAT)) {
2074 				error = EINVAL;
2075 				printf("scsi_cd: error in readtocentries, "
2076 				       "returning EINVAL\n");
2077 				free(data, M_SCSICD);
2078 				free(lead, M_SCSICD);
2079 				cam_periph_unlock(periph);
2080 				break;
2081 			}
2082 
2083 			th = &data->header;
2084 			error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2085 					  sizeof (*th), /*sense_flags*/0);
2086 			if (error) {
2087 				free(data, M_SCSICD);
2088 				free(lead, M_SCSICD);
2089 				cam_periph_unlock(periph);
2090 				break;
2091 			}
2092 
2093 			if (softc->quirks & CD_Q_BCD_TRACKS) {
2094 				/* we are going to have to convert the BCD
2095 				 * encoding on the cd to what is expected
2096 				 */
2097 				th->starting_track =
2098 				    bcd2bin(th->starting_track);
2099 				th->ending_track = bcd2bin(th->ending_track);
2100 			}
2101 
2102 			if (starting_track == 0)
2103 				starting_track = th->starting_track;
2104 			else if (starting_track == LEADOUT)
2105 				starting_track = th->ending_track + 1;
2106 			else if (starting_track < th->starting_track ||
2107 				 starting_track > th->ending_track + 1) {
2108 				printf("scsi_cd: error in readtocentries, "
2109 				       "returning EINVAL\n");
2110 				free(data, M_SCSICD);
2111 				free(lead, M_SCSICD);
2112 				cam_periph_unlock(periph);
2113 				error = EINVAL;
2114 				break;
2115 			}
2116 
2117 			/* calculate reading length without leadout entry */
2118 			readlen = (th->ending_track - starting_track + 1) *
2119 				  sizeof(struct cd_toc_entry);
2120 
2121 			/* and with leadout entry */
2122 			len = readlen + sizeof(struct cd_toc_entry);
2123 			if (te->data_len < len) {
2124 				len = te->data_len;
2125 				if (readlen > len)
2126 					readlen = len;
2127 			}
2128 			if (len > sizeof(data->entries)) {
2129 				printf("scsi_cd: error in readtocentries, "
2130 				       "returning EINVAL\n");
2131 				error = EINVAL;
2132 				free(data, M_SCSICD);
2133 				free(lead, M_SCSICD);
2134 				cam_periph_unlock(periph);
2135 				break;
2136 			}
2137 			num = len / sizeof(struct cd_toc_entry);
2138 
2139 			if (readlen > 0) {
2140 				error = cdreadtoc(periph, te->address_format,
2141 						  starting_track,
2142 						  (u_int8_t *)data,
2143 						  readlen + sizeof (*th),
2144 						  /*sense_flags*/0);
2145 				if (error) {
2146 					free(data, M_SCSICD);
2147 					free(lead, M_SCSICD);
2148 					cam_periph_unlock(periph);
2149 					break;
2150 				}
2151 			}
2152 
2153 			/* make leadout entry if needed */
2154 			idx = starting_track + num - 1;
2155 			if (softc->quirks & CD_Q_BCD_TRACKS)
2156 				th->ending_track = bcd2bin(th->ending_track);
2157 			if (idx == th->ending_track + 1) {
2158 				error = cdreadtoc(periph, te->address_format,
2159 						  LEADOUT, (u_int8_t *)lead,
2160 						  sizeof(*lead),
2161 						  /*sense_flags*/0);
2162 				if (error) {
2163 					free(data, M_SCSICD);
2164 					free(lead, M_SCSICD);
2165 					cam_periph_unlock(periph);
2166 					break;
2167 				}
2168 				data->entries[idx - starting_track] =
2169 					lead->entry;
2170 			}
2171 			if (softc->quirks & CD_Q_BCD_TRACKS) {
2172 				for (idx = 0; idx < num - 1; idx++) {
2173 					data->entries[idx].track =
2174 					    bcd2bin(data->entries[idx].track);
2175 				}
2176 			}
2177 
2178 			cam_periph_unlock(periph);
2179 			error = copyout(data->entries, te_data_get_ptr(te, cmd),
2180 			    len);
2181 			free(data, M_SCSICD);
2182 			free(lead, M_SCSICD);
2183 		}
2184 		break;
2185 	case CDIOREADTOCENTRY:
2186 		{
2187 			struct cd_toc_single *data;
2188 			struct ioc_read_toc_single_entry *te =
2189 				(struct ioc_read_toc_single_entry *) addr;
2190 			struct ioc_toc_header *th;
2191 			u_int32_t track;
2192 
2193 			data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO);
2194 
2195 			cam_periph_lock(periph);
2196 			CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2197 				  ("trying to do CDIOREADTOCENTRY\n"));
2198 
2199 			if (te->address_format != CD_MSF_FORMAT
2200 			    && te->address_format != CD_LBA_FORMAT) {
2201 				printf("error in readtocentry, "
2202 				       " returning EINVAL\n");
2203 				free(data, M_SCSICD);
2204 				error = EINVAL;
2205 				cam_periph_unlock(periph);
2206 				break;
2207 			}
2208 
2209 			th = &data->header;
2210 			error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2211 					  sizeof (*th), /*sense_flags*/0);
2212 			if (error) {
2213 				free(data, M_SCSICD);
2214 				cam_periph_unlock(periph);
2215 				break;
2216 			}
2217 
2218 			if (softc->quirks & CD_Q_BCD_TRACKS) {
2219 				/* we are going to have to convert the BCD
2220 				 * encoding on the cd to what is expected
2221 				 */
2222 				th->starting_track =
2223 				    bcd2bin(th->starting_track);
2224 				th->ending_track = bcd2bin(th->ending_track);
2225 			}
2226 			track = te->track;
2227 			if (track == 0)
2228 				track = th->starting_track;
2229 			else if (track == LEADOUT)
2230 				/* OK */;
2231 			else if (track < th->starting_track ||
2232 				 track > th->ending_track + 1) {
2233 				printf("error in readtocentry, "
2234 				       " returning EINVAL\n");
2235 				free(data, M_SCSICD);
2236 				error = EINVAL;
2237 				cam_periph_unlock(periph);
2238 				break;
2239 			}
2240 
2241 			error = cdreadtoc(periph, te->address_format, track,
2242 					  (u_int8_t *)data, sizeof(*data),
2243 					  /*sense_flags*/0);
2244 			if (error) {
2245 				free(data, M_SCSICD);
2246 				cam_periph_unlock(periph);
2247 				break;
2248 			}
2249 
2250 			if (softc->quirks & CD_Q_BCD_TRACKS)
2251 				data->entry.track = bcd2bin(data->entry.track);
2252 			bcopy(&data->entry, &te->entry,
2253 			      sizeof(struct cd_toc_entry));
2254 			free(data, M_SCSICD);
2255 			cam_periph_unlock(periph);
2256 		}
2257 		break;
2258 	case CDIOCSETPATCH:
2259 		{
2260 			struct ioc_patch *arg = (struct ioc_patch *)addr;
2261 			struct cd_mode_params params;
2262 			union cd_pages *page;
2263 
2264 			params.alloc_len = sizeof(union cd_mode_data_6_10);
2265 			params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2266 						 M_WAITOK | M_ZERO);
2267 
2268 			cam_periph_lock(periph);
2269 			CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2270 				  ("trying to do CDIOCSETPATCH\n"));
2271 
2272 			error = cdgetmode(periph, &params, AUDIO_PAGE);
2273 			if (error) {
2274 				free(params.mode_buf, M_SCSICD);
2275 				cam_periph_unlock(periph);
2276 				break;
2277 			}
2278 			page = cdgetpage(&params);
2279 
2280 			page->audio.port[LEFT_PORT].channels =
2281 				arg->patch[0];
2282 			page->audio.port[RIGHT_PORT].channels =
2283 				arg->patch[1];
2284 			page->audio.port[2].channels = arg->patch[2];
2285 			page->audio.port[3].channels = arg->patch[3];
2286 			error = cdsetmode(periph, &params);
2287 			free(params.mode_buf, M_SCSICD);
2288 			cam_periph_unlock(periph);
2289 		}
2290 		break;
2291 	case CDIOCGETVOL:
2292 		{
2293 			struct ioc_vol *arg = (struct ioc_vol *) addr;
2294 			struct cd_mode_params params;
2295 			union cd_pages *page;
2296 
2297 			params.alloc_len = sizeof(union cd_mode_data_6_10);
2298 			params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2299 						 M_WAITOK | M_ZERO);
2300 
2301 			cam_periph_lock(periph);
2302 			CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2303 				  ("trying to do CDIOCGETVOL\n"));
2304 
2305 			error = cdgetmode(periph, &params, AUDIO_PAGE);
2306 			if (error) {
2307 				free(params.mode_buf, M_SCSICD);
2308 				cam_periph_unlock(periph);
2309 				break;
2310 			}
2311 			page = cdgetpage(&params);
2312 
2313 			arg->vol[LEFT_PORT] =
2314 				page->audio.port[LEFT_PORT].volume;
2315 			arg->vol[RIGHT_PORT] =
2316 				page->audio.port[RIGHT_PORT].volume;
2317 			arg->vol[2] = page->audio.port[2].volume;
2318 			arg->vol[3] = page->audio.port[3].volume;
2319 			free(params.mode_buf, M_SCSICD);
2320 			cam_periph_unlock(periph);
2321 		}
2322 		break;
2323 	case CDIOCSETVOL:
2324 		{
2325 			struct ioc_vol *arg = (struct ioc_vol *) addr;
2326 			struct cd_mode_params params;
2327 			union cd_pages *page;
2328 
2329 			params.alloc_len = sizeof(union cd_mode_data_6_10);
2330 			params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2331 						 M_WAITOK | M_ZERO);
2332 
2333 			cam_periph_lock(periph);
2334 			CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2335 				  ("trying to do CDIOCSETVOL\n"));
2336 
2337 			error = cdgetmode(periph, &params, AUDIO_PAGE);
2338 			if (error) {
2339 				free(params.mode_buf, M_SCSICD);
2340 				cam_periph_unlock(periph);
2341 				break;
2342 			}
2343 			page = cdgetpage(&params);
2344 
2345 			page->audio.port[LEFT_PORT].channels = CHANNEL_0;
2346 			page->audio.port[LEFT_PORT].volume =
2347 				arg->vol[LEFT_PORT];
2348 			page->audio.port[RIGHT_PORT].channels = CHANNEL_1;
2349 			page->audio.port[RIGHT_PORT].volume =
2350 				arg->vol[RIGHT_PORT];
2351 			page->audio.port[2].volume = arg->vol[2];
2352 			page->audio.port[3].volume = arg->vol[3];
2353 			error = cdsetmode(periph, &params);
2354 			cam_periph_unlock(periph);
2355 			free(params.mode_buf, M_SCSICD);
2356 		}
2357 		break;
2358 	case CDIOCSETMONO:
2359 		{
2360 			struct cd_mode_params params;
2361 			union cd_pages *page;
2362 
2363 			params.alloc_len = sizeof(union cd_mode_data_6_10);
2364 			params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2365 						 M_WAITOK | M_ZERO);
2366 
2367 			cam_periph_lock(periph);
2368 			CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2369 				  ("trying to do CDIOCSETMONO\n"));
2370 
2371 			error = cdgetmode(periph, &params, AUDIO_PAGE);
2372 			if (error) {
2373 				free(params.mode_buf, M_SCSICD);
2374 				cam_periph_unlock(periph);
2375 				break;
2376 			}
2377 			page = cdgetpage(&params);
2378 
2379 			page->audio.port[LEFT_PORT].channels =
2380 				LEFT_CHANNEL | RIGHT_CHANNEL;
2381 			page->audio.port[RIGHT_PORT].channels =
2382 				LEFT_CHANNEL | RIGHT_CHANNEL;
2383 			page->audio.port[2].channels = 0;
2384 			page->audio.port[3].channels = 0;
2385 			error = cdsetmode(periph, &params);
2386 			cam_periph_unlock(periph);
2387 			free(params.mode_buf, M_SCSICD);
2388 		}
2389 		break;
2390 	case CDIOCSETSTEREO:
2391 		{
2392 			struct cd_mode_params params;
2393 			union cd_pages *page;
2394 
2395 			params.alloc_len = sizeof(union cd_mode_data_6_10);
2396 			params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2397 						 M_WAITOK | M_ZERO);
2398 
2399 			cam_periph_lock(periph);
2400 			CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2401 				  ("trying to do CDIOCSETSTEREO\n"));
2402 
2403 			error = cdgetmode(periph, &params, AUDIO_PAGE);
2404 			if (error) {
2405 				free(params.mode_buf, M_SCSICD);
2406 				cam_periph_unlock(periph);
2407 				break;
2408 			}
2409 			page = cdgetpage(&params);
2410 
2411 			page->audio.port[LEFT_PORT].channels =
2412 				LEFT_CHANNEL;
2413 			page->audio.port[RIGHT_PORT].channels =
2414 				RIGHT_CHANNEL;
2415 			page->audio.port[2].channels = 0;
2416 			page->audio.port[3].channels = 0;
2417 			error = cdsetmode(periph, &params);
2418 			free(params.mode_buf, M_SCSICD);
2419 			cam_periph_unlock(periph);
2420 		}
2421 		break;
2422 	case CDIOCSETMUTE:
2423 		{
2424 			struct cd_mode_params params;
2425 			union cd_pages *page;
2426 
2427 			params.alloc_len = sizeof(union cd_mode_data_6_10);
2428 			params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2429 						 M_WAITOK | M_ZERO);
2430 
2431 			cam_periph_lock(periph);
2432 			CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2433 				  ("trying to do CDIOCSETMUTE\n"));
2434 
2435 			error = cdgetmode(periph, &params, AUDIO_PAGE);
2436 			if (error) {
2437 				free(params.mode_buf, M_SCSICD);
2438 				cam_periph_unlock(periph);
2439 				break;
2440 			}
2441 			page = cdgetpage(&params);
2442 
2443 			page->audio.port[LEFT_PORT].channels = 0;
2444 			page->audio.port[RIGHT_PORT].channels = 0;
2445 			page->audio.port[2].channels = 0;
2446 			page->audio.port[3].channels = 0;
2447 			error = cdsetmode(periph, &params);
2448 			free(params.mode_buf, M_SCSICD);
2449 			cam_periph_unlock(periph);
2450 		}
2451 		break;
2452 	case CDIOCSETLEFT:
2453 		{
2454 			struct cd_mode_params params;
2455 			union cd_pages *page;
2456 
2457 			params.alloc_len = sizeof(union cd_mode_data_6_10);
2458 			params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2459 						 M_WAITOK | M_ZERO);
2460 
2461 			cam_periph_lock(periph);
2462 			CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2463 				  ("trying to do CDIOCSETLEFT\n"));
2464 
2465 			error = cdgetmode(periph, &params, AUDIO_PAGE);
2466 			if (error) {
2467 				free(params.mode_buf, M_SCSICD);
2468 				cam_periph_unlock(periph);
2469 				break;
2470 			}
2471 			page = cdgetpage(&params);
2472 
2473 			page->audio.port[LEFT_PORT].channels = LEFT_CHANNEL;
2474 			page->audio.port[RIGHT_PORT].channels = LEFT_CHANNEL;
2475 			page->audio.port[2].channels = 0;
2476 			page->audio.port[3].channels = 0;
2477 			error = cdsetmode(periph, &params);
2478 			free(params.mode_buf, M_SCSICD);
2479 			cam_periph_unlock(periph);
2480 		}
2481 		break;
2482 	case CDIOCSETRIGHT:
2483 		{
2484 			struct cd_mode_params params;
2485 			union cd_pages *page;
2486 
2487 			params.alloc_len = sizeof(union cd_mode_data_6_10);
2488 			params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2489 						 M_WAITOK | M_ZERO);
2490 
2491 			cam_periph_lock(periph);
2492 			CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2493 				  ("trying to do CDIOCSETRIGHT\n"));
2494 
2495 			error = cdgetmode(periph, &params, AUDIO_PAGE);
2496 			if (error) {
2497 				free(params.mode_buf, M_SCSICD);
2498 				cam_periph_unlock(periph);
2499 				break;
2500 			}
2501 			page = cdgetpage(&params);
2502 
2503 			page->audio.port[LEFT_PORT].channels = RIGHT_CHANNEL;
2504 			page->audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL;
2505 			page->audio.port[2].channels = 0;
2506 			page->audio.port[3].channels = 0;
2507 			error = cdsetmode(periph, &params);
2508 			free(params.mode_buf, M_SCSICD);
2509 			cam_periph_unlock(periph);
2510 		}
2511 		break;
2512 	case CDIOCRESUME:
2513 		cam_periph_lock(periph);
2514 		error = cdpause(periph, 1);
2515 		cam_periph_unlock(periph);
2516 		break;
2517 	case CDIOCPAUSE:
2518 		cam_periph_lock(periph);
2519 		error = cdpause(periph, 0);
2520 		cam_periph_unlock(periph);
2521 		break;
2522 	case CDIOCSTART:
2523 		cam_periph_lock(periph);
2524 		error = cdstartunit(periph, 0);
2525 		cam_periph_unlock(periph);
2526 		break;
2527 	case CDIOCCLOSE:
2528 		cam_periph_lock(periph);
2529 		error = cdstartunit(periph, 1);
2530 		cam_periph_unlock(periph);
2531 		break;
2532 	case CDIOCSTOP:
2533 		cam_periph_lock(periph);
2534 		error = cdstopunit(periph, 0);
2535 		cam_periph_unlock(periph);
2536 		break;
2537 	case CDIOCEJECT:
2538 		cam_periph_lock(periph);
2539 		error = cdstopunit(periph, 1);
2540 		cam_periph_unlock(periph);
2541 		break;
2542 	case CDIOCALLOW:
2543 		cam_periph_lock(periph);
2544 		cdprevent(periph, PR_ALLOW);
2545 		cam_periph_unlock(periph);
2546 		break;
2547 	case CDIOCPREVENT:
2548 		cam_periph_lock(periph);
2549 		cdprevent(periph, PR_PREVENT);
2550 		cam_periph_unlock(periph);
2551 		break;
2552 	case CDIOCSETDEBUG:
2553 		/* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */
2554 		error = ENOTTY;
2555 		break;
2556 	case CDIOCCLRDEBUG:
2557 		/* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */
2558 		error = ENOTTY;
2559 		break;
2560 	case CDIOCRESET:
2561 		/* return (cd_reset(periph)); */
2562 		error = ENOTTY;
2563 		break;
2564 	case CDRIOCREADSPEED:
2565 		cam_periph_lock(periph);
2566 		error = cdsetspeed(periph, *(u_int32_t *)addr, CDR_MAX_SPEED);
2567 		cam_periph_unlock(periph);
2568 		break;
2569 	case CDRIOCWRITESPEED:
2570 		cam_periph_lock(periph);
2571 		error = cdsetspeed(periph, CDR_MAX_SPEED, *(u_int32_t *)addr);
2572 		cam_periph_unlock(periph);
2573 		break;
2574 	case CDRIOCGETBLOCKSIZE:
2575 		*(int *)addr = softc->params.blksize;
2576 		break;
2577 	case CDRIOCSETBLOCKSIZE:
2578 		if (*(int *)addr <= 0) {
2579 			error = EINVAL;
2580 			break;
2581 		}
2582 		softc->disk->d_sectorsize = softc->params.blksize = *(int *)addr;
2583 		break;
2584 	case DVDIOCSENDKEY:
2585 	case DVDIOCREPORTKEY: {
2586 		struct dvd_authinfo *authinfo;
2587 
2588 		authinfo = (struct dvd_authinfo *)addr;
2589 
2590 		if (cmd == DVDIOCREPORTKEY)
2591 			error = cdreportkey(periph, authinfo);
2592 		else
2593 			error = cdsendkey(periph, authinfo);
2594 		break;
2595 		}
2596 	case DVDIOCREADSTRUCTURE: {
2597 		struct dvd_struct *dvdstruct;
2598 
2599 		dvdstruct = (struct dvd_struct *)addr;
2600 
2601 		error = cdreaddvdstructure(periph, dvdstruct);
2602 
2603 		break;
2604 	}
2605 	default:
2606 		cam_periph_lock(periph);
2607 		error = cam_periph_ioctl(periph, cmd, addr, cderror);
2608 		cam_periph_unlock(periph);
2609 		break;
2610 	}
2611 
2612 	cam_periph_lock(periph);
2613 	cam_periph_unhold(periph);
2614 
2615 	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n"));
2616 	if (error && bootverbose) {
2617 		printf("scsi_cd.c::ioctl cmd=%08lx error=%d\n", cmd, error);
2618 	}
2619 	cam_periph_unlock(periph);
2620 
2621 	return (error);
2622 }
2623 
2624 static void
2625 cdprevent(struct cam_periph *periph, int action)
2626 {
2627 	union	ccb *ccb;
2628 	struct	cd_softc *softc;
2629 	int	error;
2630 
2631 	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n"));
2632 
2633 	cam_periph_assert(periph, MA_OWNED);
2634 	softc = (struct cd_softc *)periph->softc;
2635 
2636 	if (((action == PR_ALLOW)
2637 	  && (softc->flags & CD_FLAG_DISC_LOCKED) == 0)
2638 	 || ((action == PR_PREVENT)
2639 	  && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) {
2640 		return;
2641 	}
2642 
2643 	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2644 
2645 	scsi_prevent(&ccb->csio,
2646 		     /*retries*/ cd_retry_count,
2647 		     /*cbfcnp*/NULL,
2648 		     MSG_SIMPLE_Q_TAG,
2649 		     action,
2650 		     SSD_FULL_SIZE,
2651 		     /* timeout */60000);
2652 
2653 	error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
2654 			/*sense_flags*/SF_RETRY_UA|SF_NO_PRINT);
2655 
2656 	xpt_release_ccb(ccb);
2657 
2658 	if (error == 0) {
2659 		if (action == PR_ALLOW)
2660 			softc->flags &= ~CD_FLAG_DISC_LOCKED;
2661 		else
2662 			softc->flags |= CD_FLAG_DISC_LOCKED;
2663 	}
2664 }
2665 
2666 static void
2667 cdmediaprobedone(struct cam_periph *periph)
2668 {
2669 	struct cd_softc *softc;
2670 
2671 	cam_periph_assert(periph, MA_OWNED);
2672 	softc = (struct cd_softc *)periph->softc;
2673 
2674 	softc->flags &= ~CD_FLAG_MEDIA_SCAN_ACT;
2675 
2676 	if ((softc->flags & CD_FLAG_MEDIA_WAIT) != 0) {
2677 		softc->flags &= ~CD_FLAG_MEDIA_WAIT;
2678 		wakeup(&softc->toc);
2679 	}
2680 }
2681 
2682 /*
2683  * XXX: the disk media and sector size is only really able to change
2684  * XXX: while the device is closed.
2685  */
2686 
2687 static int
2688 cdcheckmedia(struct cam_periph *periph, int do_wait)
2689 {
2690 	struct cd_softc *softc;
2691 	int error;
2692 
2693 	cam_periph_assert(periph, MA_OWNED);
2694 	softc = (struct cd_softc *)periph->softc;
2695 	error = 0;
2696 
2697 	if ((do_wait != 0)
2698 	 && ((softc->flags & CD_FLAG_MEDIA_WAIT) == 0)) {
2699 		softc->flags |= CD_FLAG_MEDIA_WAIT;
2700 	}
2701 	if ((softc->flags & CD_FLAG_MEDIA_SCAN_ACT) == 0) {
2702 		softc->state = CD_STATE_MEDIA_PREVENT;
2703 		softc->flags |= CD_FLAG_MEDIA_SCAN_ACT;
2704 		xpt_schedule(periph, CAM_PRIORITY_NORMAL);
2705 	}
2706 
2707 	if (do_wait == 0)
2708 		goto bailout;
2709 
2710 	error = msleep(&softc->toc, cam_periph_mtx(periph), PRIBIO,"cdmedia",0);
2711 
2712 	if (error != 0)
2713 		goto bailout;
2714 
2715 	/*
2716 	 * Check to see whether we have a valid size from the media.  We
2717 	 * may or may not have a valid TOC.
2718 	 */
2719 	if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0)
2720 		error = EINVAL;
2721 bailout:
2722 
2723 	return (error);
2724 }
2725 
2726 #if 0
2727 static int
2728 cdcheckmedia(struct cam_periph *periph)
2729 {
2730 	struct cd_softc *softc;
2731 	struct ioc_toc_header *toch;
2732 	struct cd_toc_single leadout;
2733 	u_int32_t size, toclen;
2734 	int error, num_entries, cdindex;
2735 
2736 	softc = (struct cd_softc *)periph->softc;
2737 
2738 	cdprevent(periph, PR_PREVENT);
2739 	softc->disk->d_sectorsize = 2048;
2740 	softc->disk->d_mediasize = 0;
2741 
2742 	/*
2743 	 * Get the disc size and block size.  If we can't get it, we don't
2744 	 * have media, most likely.
2745 	 */
2746 	if ((error = cdsize(periph, &size)) != 0) {
2747 		softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC);
2748 		cdprevent(periph, PR_ALLOW);
2749 		return (error);
2750 	} else {
2751 		softc->flags |= CD_FLAG_SAW_MEDIA | CD_FLAG_VALID_MEDIA;
2752 		softc->disk->d_sectorsize = softc->params.blksize;
2753 		softc->disk->d_mediasize =
2754 		    (off_t)softc->params.blksize * softc->params.disksize;
2755 	}
2756 
2757 	/*
2758 	 * Now we check the table of contents.  This (currently) is only
2759 	 * used for the CDIOCPLAYTRACKS ioctl.  It may be used later to do
2760 	 * things like present a separate entry in /dev for each track,
2761 	 * like that acd(4) driver does.
2762 	 */
2763 	bzero(&softc->toc, sizeof(softc->toc));
2764 	toch = &softc->toc.header;
2765 	/*
2766 	 * We will get errors here for media that doesn't have a table of
2767 	 * contents.  According to the MMC-3 spec: "When a Read TOC/PMA/ATIP
2768 	 * command is presented for a DDCD/CD-R/RW media, where the first TOC
2769 	 * has not been recorded (no complete session) and the Format codes
2770 	 * 0000b, 0001b, or 0010b are specified, this command shall be rejected
2771 	 * with an INVALID FIELD IN CDB.  Devices that are not capable of
2772 	 * reading an incomplete session on DDC/CD-R/RW media shall report
2773 	 * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT."
2774 	 *
2775 	 * So this isn't fatal if we can't read the table of contents, it
2776 	 * just means that the user won't be able to issue the play tracks
2777 	 * ioctl, and likely lots of other stuff won't work either.  They
2778 	 * need to burn the CD before we can do a whole lot with it.  So
2779 	 * we don't print anything here if we get an error back.
2780 	 */
2781 	error = cdreadtoc(periph, 0, 0, (u_int8_t *)toch, sizeof(*toch),
2782 			  SF_NO_PRINT);
2783 	/*
2784 	 * Errors in reading the table of contents aren't fatal, we just
2785 	 * won't have a valid table of contents cached.
2786 	 */
2787 	if (error != 0) {
2788 		error = 0;
2789 		bzero(&softc->toc, sizeof(softc->toc));
2790 		goto bailout;
2791 	}
2792 
2793 	if (softc->quirks & CD_Q_BCD_TRACKS) {
2794 		toch->starting_track = bcd2bin(toch->starting_track);
2795 		toch->ending_track = bcd2bin(toch->ending_track);
2796 	}
2797 
2798 	/* Number of TOC entries, plus leadout */
2799 	num_entries = (toch->ending_track - toch->starting_track) + 2;
2800 
2801 	if (num_entries <= 0)
2802 		goto bailout;
2803 
2804 	toclen = num_entries * sizeof(struct cd_toc_entry);
2805 
2806 	error = cdreadtoc(periph, CD_MSF_FORMAT, toch->starting_track,
2807 			  (u_int8_t *)&softc->toc, toclen + sizeof(*toch),
2808 			  SF_NO_PRINT);
2809 	if (error != 0) {
2810 		error = 0;
2811 		bzero(&softc->toc, sizeof(softc->toc));
2812 		goto bailout;
2813 	}
2814 
2815 	if (softc->quirks & CD_Q_BCD_TRACKS) {
2816 		toch->starting_track = bcd2bin(toch->starting_track);
2817 		toch->ending_track = bcd2bin(toch->ending_track);
2818 	}
2819 	/*
2820 	 * XXX KDM is this necessary?  Probably only if the drive doesn't
2821 	 * return leadout information with the table of contents.
2822 	 */
2823 	cdindex = toch->starting_track + num_entries -1;
2824 	if (cdindex == toch->ending_track + 1) {
2825 		error = cdreadtoc(periph, CD_MSF_FORMAT, LEADOUT,
2826 				  (u_int8_t *)&leadout, sizeof(leadout),
2827 				  SF_NO_PRINT);
2828 		if (error != 0) {
2829 			error = 0;
2830 			goto bailout;
2831 		}
2832 		softc->toc.entries[cdindex - toch->starting_track] =
2833 			leadout.entry;
2834 	}
2835 	if (softc->quirks & CD_Q_BCD_TRACKS) {
2836 		for (cdindex = 0; cdindex < num_entries - 1; cdindex++) {
2837 			softc->toc.entries[cdindex].track =
2838 				bcd2bin(softc->toc.entries[cdindex].track);
2839 		}
2840 	}
2841 
2842 	softc->flags |= CD_FLAG_VALID_TOC;
2843 
2844 	/* If the first track is audio, correct sector size. */
2845 	if ((softc->toc.entries[0].control & 4) == 0) {
2846 		softc->disk->d_sectorsize = softc->params.blksize = 2352;
2847 		softc->disk->d_mediasize =
2848 		    (off_t)softc->params.blksize * softc->params.disksize;
2849 	}
2850 
2851 bailout:
2852 
2853 	/*
2854 	 * We unconditionally (re)set the blocksize each time the
2855 	 * CD device is opened.  This is because the CD can change,
2856 	 * and therefore the blocksize might change.
2857 	 * XXX problems here if some slice or partition is still
2858 	 * open with the old size?
2859 	 */
2860 	if ((softc->disk->d_devstat->flags & DEVSTAT_BS_UNAVAILABLE) != 0)
2861 		softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
2862 	softc->disk->d_devstat->block_size = softc->params.blksize;
2863 
2864 	return (error);
2865 }
2866 
2867 static int
2868 cdsize(struct cam_periph *periph, u_int32_t *size)
2869 {
2870 	struct cd_softc *softc;
2871 	union ccb *ccb;
2872 	struct scsi_read_capacity_data *rcap_buf;
2873 	int error;
2874 
2875 	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n"));
2876 
2877 	softc = (struct cd_softc *)periph->softc;
2878 
2879 	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2880 
2881 	/* XXX Should be M_WAITOK */
2882 	rcap_buf = malloc(sizeof(struct scsi_read_capacity_data),
2883 			  M_SCSICD, M_NOWAIT | M_ZERO);
2884 	if (rcap_buf == NULL)
2885 		return (ENOMEM);
2886 
2887 	scsi_read_capacity(&ccb->csio,
2888 			   /*retries*/ cd_retry_count,
2889 			   /*cbfcnp*/NULL,
2890 			   MSG_SIMPLE_Q_TAG,
2891 			   rcap_buf,
2892 			   SSD_FULL_SIZE,
2893 			   /* timeout */20000);
2894 
2895 	error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
2896 			 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT);
2897 
2898 	xpt_release_ccb(ccb);
2899 
2900 	softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1;
2901 	softc->params.blksize  = scsi_4btoul(rcap_buf->length);
2902 	/* Make sure we got at least some block size. */
2903 	if (error == 0 && softc->params.blksize == 0)
2904 		error = EIO;
2905 	/*
2906 	 * SCSI-3 mandates that the reported blocksize shall be 2048.
2907 	 * Older drives sometimes report funny values, trim it down to
2908 	 * 2048, or other parts of the kernel will get confused.
2909 	 *
2910 	 * XXX we leave drives alone that might report 512 bytes, as
2911 	 * well as drives reporting more weird sizes like perhaps 4K.
2912 	 */
2913 	if (softc->params.blksize > 2048 && softc->params.blksize <= 2352)
2914 		softc->params.blksize = 2048;
2915 
2916 	free(rcap_buf, M_SCSICD);
2917 	*size = softc->params.disksize;
2918 
2919 	return (error);
2920 
2921 }
2922 #endif
2923 
2924 static int
2925 cd6byteworkaround(union ccb *ccb)
2926 {
2927 	u_int8_t *cdb;
2928 	struct cam_periph *periph;
2929 	struct cd_softc *softc;
2930 	struct cd_mode_params *params;
2931 	int frozen, found;
2932 
2933 	periph = xpt_path_periph(ccb->ccb_h.path);
2934 	softc = (struct cd_softc *)periph->softc;
2935 
2936 	cdb = ccb->csio.cdb_io.cdb_bytes;
2937 
2938 	if ((ccb->ccb_h.flags & CAM_CDB_POINTER)
2939 	 || ((cdb[0] != MODE_SENSE_6)
2940 	  && (cdb[0] != MODE_SELECT_6)))
2941 		return (0);
2942 
2943 	/*
2944 	 * Because there is no convenient place to stash the overall
2945 	 * cd_mode_params structure pointer, we have to grab it like this.
2946 	 * This means that ALL MODE_SENSE and MODE_SELECT requests in the
2947 	 * cd(4) driver MUST go through cdgetmode() and cdsetmode()!
2948 	 *
2949 	 * XXX It would be nice if, at some point, we could increase the
2950 	 * number of available peripheral private pointers.  Both pointers
2951 	 * are currently used in most every peripheral driver.
2952 	 */
2953 	found = 0;
2954 
2955 	STAILQ_FOREACH(params, &softc->mode_queue, links) {
2956 		if (params->mode_buf == ccb->csio.data_ptr) {
2957 			found = 1;
2958 			break;
2959 		}
2960 	}
2961 
2962 	/*
2963 	 * This shouldn't happen.  All mode sense and mode select
2964 	 * operations in the cd(4) driver MUST go through cdgetmode() and
2965 	 * cdsetmode()!
2966 	 */
2967 	if (found == 0) {
2968 		xpt_print(periph->path,
2969 		    "mode buffer not found in mode queue!\n");
2970 		return (0);
2971 	}
2972 
2973 	params->cdb_size = 10;
2974 	softc->minimum_command_size = 10;
2975 	xpt_print(ccb->ccb_h.path,
2976 	    "%s(6) failed, increasing minimum CDB size to 10 bytes\n",
2977 	    (cdb[0] == MODE_SENSE_6) ? "MODE_SENSE" : "MODE_SELECT");
2978 
2979 	if (cdb[0] == MODE_SENSE_6) {
2980 		struct scsi_mode_sense_10 ms10;
2981 		struct scsi_mode_sense_6 *ms6;
2982 		int len;
2983 
2984 		ms6 = (struct scsi_mode_sense_6 *)cdb;
2985 
2986 		bzero(&ms10, sizeof(ms10));
2987 		ms10.opcode = MODE_SENSE_10;
2988 		ms10.byte2 = ms6->byte2;
2989 		ms10.page = ms6->page;
2990 
2991 		/*
2992 		 * 10 byte mode header, block descriptor,
2993 		 * sizeof(union cd_pages)
2994 		 */
2995 		len = sizeof(struct cd_mode_data_10);
2996 		ccb->csio.dxfer_len = len;
2997 
2998 		scsi_ulto2b(len, ms10.length);
2999 		ms10.control = ms6->control;
3000 		bcopy(&ms10, cdb, 10);
3001 		ccb->csio.cdb_len = 10;
3002 	} else {
3003 		struct scsi_mode_select_10 ms10;
3004 		struct scsi_mode_select_6 *ms6;
3005 		struct scsi_mode_header_6 *header6;
3006 		struct scsi_mode_header_10 *header10;
3007 		struct scsi_mode_page_header *page_header;
3008 		int blk_desc_len, page_num, page_size, len;
3009 
3010 		ms6 = (struct scsi_mode_select_6 *)cdb;
3011 
3012 		bzero(&ms10, sizeof(ms10));
3013 		ms10.opcode = MODE_SELECT_10;
3014 		ms10.byte2 = ms6->byte2;
3015 
3016 		header6 = (struct scsi_mode_header_6 *)params->mode_buf;
3017 		header10 = (struct scsi_mode_header_10 *)params->mode_buf;
3018 
3019 		page_header = find_mode_page_6(header6);
3020 		page_num = page_header->page_code;
3021 
3022 		blk_desc_len = header6->blk_desc_len;
3023 
3024 		page_size = cdgetpagesize(page_num);
3025 
3026 		if (page_size != (page_header->page_length +
3027 		    sizeof(*page_header)))
3028 			page_size = page_header->page_length +
3029 				sizeof(*page_header);
3030 
3031 		len = sizeof(*header10) + blk_desc_len + page_size;
3032 
3033 		len = min(params->alloc_len, len);
3034 
3035 		/*
3036 		 * Since the 6 byte parameter header is shorter than the 10
3037 		 * byte parameter header, we need to copy the actual mode
3038 		 * page data, and the block descriptor, if any, so things wind
3039 		 * up in the right place.  The regions will overlap, but
3040 		 * bcopy() does the right thing.
3041 		 */
3042 		bcopy(params->mode_buf + sizeof(*header6),
3043 		      params->mode_buf + sizeof(*header10),
3044 		      len - sizeof(*header10));
3045 
3046 		/* Make sure these fields are set correctly. */
3047 		scsi_ulto2b(0, header10->data_length);
3048 		header10->medium_type = 0;
3049 		scsi_ulto2b(blk_desc_len, header10->blk_desc_len);
3050 
3051 		ccb->csio.dxfer_len = len;
3052 
3053 		scsi_ulto2b(len, ms10.length);
3054 		ms10.control = ms6->control;
3055 		bcopy(&ms10, cdb, 10);
3056 		ccb->csio.cdb_len = 10;
3057 	}
3058 
3059 	frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
3060 	ccb->ccb_h.status = CAM_REQUEUE_REQ;
3061 	xpt_action(ccb);
3062 	if (frozen) {
3063 		cam_release_devq(ccb->ccb_h.path,
3064 				 /*relsim_flags*/0,
3065 				 /*openings*/0,
3066 				 /*timeout*/0,
3067 				 /*getcount_only*/0);
3068 	}
3069 
3070 	return (ERESTART);
3071 }
3072 
3073 static int
3074 cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
3075 {
3076 	struct cd_softc *softc;
3077 	struct cam_periph *periph;
3078 	int error, error_code, sense_key, asc, ascq;
3079 
3080 	periph = xpt_path_periph(ccb->ccb_h.path);
3081 	softc = (struct cd_softc *)periph->softc;
3082 
3083 	cam_periph_assert(periph, MA_OWNED);
3084 
3085 	/*
3086 	 * We use a status of CAM_REQ_INVALID as shorthand -- if a 6 byte
3087 	 * CDB comes back with this particular error, try transforming it
3088 	 * into the 10 byte version.
3089 	 */
3090 	error = 0;
3091 	if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
3092 		error = cd6byteworkaround(ccb);
3093 	} else if (scsi_extract_sense_ccb(ccb,
3094 	    &error_code, &sense_key, &asc, &ascq)) {
3095 		if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
3096 			error = cd6byteworkaround(ccb);
3097 		else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3098 		    asc == 0x28 && ascq == 0x00)
3099 			disk_media_changed(softc->disk, M_NOWAIT);
3100 		else if (sense_key == SSD_KEY_NOT_READY &&
3101 		    asc == 0x3a && (softc->flags & CD_FLAG_SAW_MEDIA)) {
3102 			softc->flags &= ~CD_FLAG_SAW_MEDIA;
3103 			disk_media_gone(softc->disk, M_NOWAIT);
3104 		}
3105 	}
3106 
3107 	if (error == ERESTART)
3108 		return (error);
3109 
3110 	/*
3111 	 * XXX
3112 	 * Until we have a better way of doing pack validation,
3113 	 * don't treat UAs as errors.
3114 	 */
3115 	sense_flags |= SF_RETRY_UA;
3116 
3117 	if (softc->quirks & CD_Q_RETRY_BUSY)
3118 		sense_flags |= SF_RETRY_BUSY;
3119 	return (cam_periph_error(ccb, cam_flags, sense_flags));
3120 }
3121 
3122 static void
3123 cdmediapoll(void *arg)
3124 {
3125 	struct cam_periph *periph = arg;
3126 	struct cd_softc *softc = periph->softc;
3127 
3128 	if (softc->state == CD_STATE_NORMAL && !softc->tur &&
3129 	    softc->outstanding_cmds == 0) {
3130 		if (cam_periph_acquire(periph) == 0) {
3131 			softc->tur = 1;
3132 			xpt_schedule(periph, CAM_PRIORITY_NORMAL);
3133 		}
3134 	}
3135 
3136 	/* Queue us up again */
3137 	if (cd_poll_period != 0) {
3138 		callout_schedule_sbt(&softc->mediapoll_c,
3139 		    cd_poll_period * SBT_1S, 0, C_PREL(1));
3140 	}
3141 }
3142 
3143 /*
3144  * Read table of contents
3145  */
3146 static int
3147 cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start,
3148 	  u_int8_t *data, u_int32_t len, u_int32_t sense_flags)
3149 {
3150         struct ccb_scsiio *csio;
3151 	union ccb *ccb;
3152 	int error;
3153 
3154 	error = 0;
3155 
3156 	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3157 
3158 	csio = &ccb->csio;
3159 
3160 	scsi_read_toc(csio,
3161 		      /* retries */ cd_retry_count,
3162 		      /* cbfcnp */ NULL,
3163 		      /* tag_action */ MSG_SIMPLE_Q_TAG,
3164 		      /* byte1_flags */ (mode == CD_MSF_FORMAT) ? CD_MSF : 0,
3165 		      /* format */ SRTOC_FORMAT_TOC,
3166 		      /* track*/ start,
3167 		      /* data_ptr */ data,
3168 		      /* dxfer_len */ len,
3169 		      /* sense_len */ SSD_FULL_SIZE,
3170 		      /* timeout */ 50000);
3171 
3172 	error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3173 			 /*sense_flags*/SF_RETRY_UA | sense_flags);
3174 
3175 	xpt_release_ccb(ccb);
3176 
3177 	return(error);
3178 }
3179 
3180 static int
3181 cdreadsubchannel(struct cam_periph *periph, u_int32_t mode,
3182 		 u_int32_t format, int track,
3183 		 struct cd_sub_channel_info *data, u_int32_t len)
3184 {
3185 	struct scsi_read_subchannel *scsi_cmd;
3186         struct ccb_scsiio *csio;
3187 	union ccb *ccb;
3188 	int error;
3189 
3190 	error = 0;
3191 
3192 	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3193 
3194 	csio = &ccb->csio;
3195 
3196 	cam_fill_csio(csio,
3197 		      /* retries */ cd_retry_count,
3198 		      /* cbfcnp */ NULL,
3199 		      /* flags */ CAM_DIR_IN,
3200 		      /* tag_action */ MSG_SIMPLE_Q_TAG,
3201 		      /* data_ptr */ (u_int8_t *)data,
3202 		      /* dxfer_len */ len,
3203 		      /* sense_len */ SSD_FULL_SIZE,
3204 		      sizeof(struct scsi_read_subchannel),
3205 		      /* timeout */ 50000);
3206 
3207 	scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes;
3208 	bzero (scsi_cmd, sizeof(*scsi_cmd));
3209 
3210 	scsi_cmd->op_code = READ_SUBCHANNEL;
3211 	if (mode == CD_MSF_FORMAT)
3212 		scsi_cmd->byte1 |= CD_MSF;
3213 	scsi_cmd->byte2 = SRS_SUBQ;
3214 	scsi_cmd->subchan_format = format;
3215 	scsi_cmd->track = track;
3216 	scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len);
3217 	scsi_cmd->control = 0;
3218 
3219 	error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3220 			 /*sense_flags*/SF_RETRY_UA);
3221 
3222 	xpt_release_ccb(ccb);
3223 
3224 	return(error);
3225 }
3226 
3227 /*
3228  * All MODE_SENSE requests in the cd(4) driver MUST go through this
3229  * routine.  See comments in cd6byteworkaround() for details.
3230  */
3231 static int
3232 cdgetmode(struct cam_periph *periph, struct cd_mode_params *data,
3233 	  u_int32_t page)
3234 {
3235 	struct ccb_scsiio *csio;
3236 	struct cd_softc *softc;
3237 	union ccb *ccb;
3238 	int param_len;
3239 	int error;
3240 
3241 	softc = (struct cd_softc *)periph->softc;
3242 
3243 	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3244 
3245 	csio = &ccb->csio;
3246 
3247 	data->cdb_size = softc->minimum_command_size;
3248 	if (data->cdb_size < 10)
3249 		param_len = sizeof(struct cd_mode_data);
3250 	else
3251 		param_len = sizeof(struct cd_mode_data_10);
3252 
3253 	/* Don't say we've got more room than we actually allocated */
3254 	param_len = min(param_len, data->alloc_len);
3255 
3256 	scsi_mode_sense_len(csio,
3257 			    /* retries */ cd_retry_count,
3258 			    /* cbfcnp */ NULL,
3259 			    /* tag_action */ MSG_SIMPLE_Q_TAG,
3260 			    /* dbd */ 0,
3261 			    /* page_code */ SMS_PAGE_CTRL_CURRENT,
3262 			    /* page */ page,
3263 			    /* param_buf */ data->mode_buf,
3264 			    /* param_len */ param_len,
3265 			    /* minimum_cmd_size */ softc->minimum_command_size,
3266 			    /* sense_len */ SSD_FULL_SIZE,
3267 			    /* timeout */ 50000);
3268 
3269 	/*
3270 	 * It would be nice not to have to do this, but there's no
3271 	 * available pointer in the CCB that would allow us to stuff the
3272 	 * mode params structure in there and retrieve it in
3273 	 * cd6byteworkaround(), so we can set the cdb size.  The cdb size
3274 	 * lets the caller know what CDB size we ended up using, so they
3275 	 * can find the actual mode page offset.
3276 	 */
3277 	STAILQ_INSERT_TAIL(&softc->mode_queue, data, links);
3278 
3279 	error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3280 			 /*sense_flags*/SF_RETRY_UA);
3281 
3282 	xpt_release_ccb(ccb);
3283 
3284 	STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links);
3285 
3286 	/*
3287 	 * This is a bit of belt-and-suspenders checking, but if we run
3288 	 * into a situation where the target sends back multiple block
3289 	 * descriptors, we might not have enough space in the buffer to
3290 	 * see the whole mode page.  Better to return an error than
3291 	 * potentially access memory beyond our malloced region.
3292 	 */
3293 	if (error == 0) {
3294 		u_int32_t data_len;
3295 
3296 		if (data->cdb_size == 10) {
3297 			struct scsi_mode_header_10 *hdr10;
3298 
3299 			hdr10 = (struct scsi_mode_header_10 *)data->mode_buf;
3300 			data_len = scsi_2btoul(hdr10->data_length);
3301 			data_len += sizeof(hdr10->data_length);
3302 		} else {
3303 			struct scsi_mode_header_6 *hdr6;
3304 
3305 			hdr6 = (struct scsi_mode_header_6 *)data->mode_buf;
3306 			data_len = hdr6->data_length;
3307 			data_len += sizeof(hdr6->data_length);
3308 		}
3309 
3310 		/*
3311 		 * Complain if there is more mode data available than we
3312 		 * allocated space for.  This could potentially happen if
3313 		 * we miscalculated the page length for some reason, if the
3314 		 * drive returns multiple block descriptors, or if it sets
3315 		 * the data length incorrectly.
3316 		 */
3317 		if (data_len > data->alloc_len) {
3318 			xpt_print(periph->path, "allocated modepage %d length "
3319 			    "%d < returned length %d\n", page, data->alloc_len,
3320 			    data_len);
3321 			error = ENOSPC;
3322 		}
3323 	}
3324 	return (error);
3325 }
3326 
3327 /*
3328  * All MODE_SELECT requests in the cd(4) driver MUST go through this
3329  * routine.  See comments in cd6byteworkaround() for details.
3330  */
3331 static int
3332 cdsetmode(struct cam_periph *periph, struct cd_mode_params *data)
3333 {
3334 	struct ccb_scsiio *csio;
3335 	struct cd_softc *softc;
3336 	union ccb *ccb;
3337 	int cdb_size, param_len;
3338 	int error;
3339 
3340 	softc = (struct cd_softc *)periph->softc;
3341 
3342 	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3343 
3344 	csio = &ccb->csio;
3345 
3346 	error = 0;
3347 
3348 	/*
3349 	 * If the data is formatted for the 10 byte version of the mode
3350 	 * select parameter list, we need to use the 10 byte CDB.
3351 	 * Otherwise, we use whatever the stored minimum command size.
3352 	 */
3353 	if (data->cdb_size == 10)
3354 		cdb_size = data->cdb_size;
3355 	else
3356 		cdb_size = softc->minimum_command_size;
3357 
3358 	if (cdb_size >= 10) {
3359 		struct scsi_mode_header_10 *mode_header;
3360 		u_int32_t data_len;
3361 
3362 		mode_header = (struct scsi_mode_header_10 *)data->mode_buf;
3363 
3364 		data_len = scsi_2btoul(mode_header->data_length);
3365 
3366 		scsi_ulto2b(0, mode_header->data_length);
3367 		/*
3368 		 * SONY drives do not allow a mode select with a medium_type
3369 		 * value that has just been returned by a mode sense; use a
3370 		 * medium_type of 0 (Default) instead.
3371 		 */
3372 		mode_header->medium_type = 0;
3373 
3374 		/*
3375 		 * Pass back whatever the drive passed to us, plus the size
3376 		 * of the data length field.
3377 		 */
3378 		param_len = data_len + sizeof(mode_header->data_length);
3379 
3380 	} else {
3381 		struct scsi_mode_header_6 *mode_header;
3382 
3383 		mode_header = (struct scsi_mode_header_6 *)data->mode_buf;
3384 
3385 		param_len = mode_header->data_length + 1;
3386 
3387 		mode_header->data_length = 0;
3388 		/*
3389 		 * SONY drives do not allow a mode select with a medium_type
3390 		 * value that has just been returned by a mode sense; use a
3391 		 * medium_type of 0 (Default) instead.
3392 		 */
3393 		mode_header->medium_type = 0;
3394 	}
3395 
3396 	/* Don't say we've got more room than we actually allocated */
3397 	param_len = min(param_len, data->alloc_len);
3398 
3399 	scsi_mode_select_len(csio,
3400 			     /* retries */ cd_retry_count,
3401 			     /* cbfcnp */ NULL,
3402 			     /* tag_action */ MSG_SIMPLE_Q_TAG,
3403 			     /* scsi_page_fmt */ 1,
3404 			     /* save_pages */ 0,
3405 			     /* param_buf */ data->mode_buf,
3406 			     /* param_len */ param_len,
3407 			     /* minimum_cmd_size */ cdb_size,
3408 			     /* sense_len */ SSD_FULL_SIZE,
3409 			     /* timeout */ 50000);
3410 
3411 	/* See comments in cdgetmode() and cd6byteworkaround(). */
3412 	STAILQ_INSERT_TAIL(&softc->mode_queue, data, links);
3413 
3414 	error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3415 			 /*sense_flags*/SF_RETRY_UA);
3416 
3417 	xpt_release_ccb(ccb);
3418 
3419 	STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links);
3420 
3421 	return (error);
3422 }
3423 
3424 static int
3425 cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len)
3426 {
3427 	struct ccb_scsiio *csio;
3428 	union ccb *ccb;
3429 	int error;
3430 	u_int8_t cdb_len;
3431 
3432 	error = 0;
3433 	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3434 	csio = &ccb->csio;
3435 	/*
3436 	 * Use the smallest possible command to perform the operation.
3437 	 */
3438 	if ((len & 0xffff0000) == 0) {
3439 		/*
3440 		 * We can fit in a 10 byte cdb.
3441 		 */
3442 		struct scsi_play_10 *scsi_cmd;
3443 
3444 		scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes;
3445 		bzero (scsi_cmd, sizeof(*scsi_cmd));
3446 		scsi_cmd->op_code = PLAY_10;
3447 		scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr);
3448 		scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len);
3449 		cdb_len = sizeof(*scsi_cmd);
3450 	} else  {
3451 		struct scsi_play_12 *scsi_cmd;
3452 
3453 		scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes;
3454 		bzero (scsi_cmd, sizeof(*scsi_cmd));
3455 		scsi_cmd->op_code = PLAY_12;
3456 		scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr);
3457 		scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len);
3458 		cdb_len = sizeof(*scsi_cmd);
3459 	}
3460 	cam_fill_csio(csio,
3461 		      /*retries*/ cd_retry_count,
3462 		      /*cbfcnp*/NULL,
3463 		      /*flags*/CAM_DIR_NONE,
3464 		      MSG_SIMPLE_Q_TAG,
3465 		      /*dataptr*/NULL,
3466 		      /*datalen*/0,
3467 		      /*sense_len*/SSD_FULL_SIZE,
3468 		      cdb_len,
3469 		      /*timeout*/50 * 1000);
3470 
3471 	error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3472 			 /*sense_flags*/SF_RETRY_UA);
3473 
3474 	xpt_release_ccb(ccb);
3475 
3476 	return(error);
3477 }
3478 
3479 static int
3480 cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts,
3481 	  u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf)
3482 {
3483 	struct scsi_play_msf *scsi_cmd;
3484         struct ccb_scsiio *csio;
3485 	union ccb *ccb;
3486 	int error;
3487 
3488 	error = 0;
3489 
3490 	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3491 
3492 	csio = &ccb->csio;
3493 
3494 	cam_fill_csio(csio,
3495 		      /* retries */ cd_retry_count,
3496 		      /* cbfcnp */ NULL,
3497 		      /* flags */ CAM_DIR_NONE,
3498 		      /* tag_action */ MSG_SIMPLE_Q_TAG,
3499 		      /* data_ptr */ NULL,
3500 		      /* dxfer_len */ 0,
3501 		      /* sense_len */ SSD_FULL_SIZE,
3502 		      sizeof(struct scsi_play_msf),
3503 		      /* timeout */ 50000);
3504 
3505 	scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes;
3506 	bzero (scsi_cmd, sizeof(*scsi_cmd));
3507 
3508         scsi_cmd->op_code = PLAY_MSF;
3509         scsi_cmd->start_m = startm;
3510         scsi_cmd->start_s = starts;
3511         scsi_cmd->start_f = startf;
3512         scsi_cmd->end_m = endm;
3513         scsi_cmd->end_s = ends;
3514         scsi_cmd->end_f = endf;
3515 
3516 	error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3517 			 /*sense_flags*/SF_RETRY_UA);
3518 
3519 	xpt_release_ccb(ccb);
3520 
3521 	return(error);
3522 }
3523 
3524 static int
3525 cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex,
3526 	     u_int32_t etrack, u_int32_t eindex)
3527 {
3528 	struct scsi_play_track *scsi_cmd;
3529         struct ccb_scsiio *csio;
3530 	union ccb *ccb;
3531 	int error;
3532 
3533 	error = 0;
3534 
3535 	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3536 
3537 	csio = &ccb->csio;
3538 
3539 	cam_fill_csio(csio,
3540 		      /* retries */ cd_retry_count,
3541 		      /* cbfcnp */ NULL,
3542 		      /* flags */ CAM_DIR_NONE,
3543 		      /* tag_action */ MSG_SIMPLE_Q_TAG,
3544 		      /* data_ptr */ NULL,
3545 		      /* dxfer_len */ 0,
3546 		      /* sense_len */ SSD_FULL_SIZE,
3547 		      sizeof(struct scsi_play_track),
3548 		      /* timeout */ 50000);
3549 
3550 	scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes;
3551 	bzero (scsi_cmd, sizeof(*scsi_cmd));
3552 
3553         scsi_cmd->op_code = PLAY_TRACK;
3554         scsi_cmd->start_track = strack;
3555         scsi_cmd->start_index = sindex;
3556         scsi_cmd->end_track = etrack;
3557         scsi_cmd->end_index = eindex;
3558 
3559 	error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3560 			 /*sense_flags*/SF_RETRY_UA);
3561 
3562 	xpt_release_ccb(ccb);
3563 
3564 	return(error);
3565 }
3566 
3567 static int
3568 cdpause(struct cam_periph *periph, u_int32_t go)
3569 {
3570 	struct scsi_pause *scsi_cmd;
3571         struct ccb_scsiio *csio;
3572 	union ccb *ccb;
3573 	int error;
3574 
3575 	error = 0;
3576 
3577 	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3578 
3579 	csio = &ccb->csio;
3580 
3581 	cam_fill_csio(csio,
3582 		      /* retries */ cd_retry_count,
3583 		      /* cbfcnp */ NULL,
3584 		      /* flags */ CAM_DIR_NONE,
3585 		      /* tag_action */ MSG_SIMPLE_Q_TAG,
3586 		      /* data_ptr */ NULL,
3587 		      /* dxfer_len */ 0,
3588 		      /* sense_len */ SSD_FULL_SIZE,
3589 		      sizeof(struct scsi_pause),
3590 		      /* timeout */ 50000);
3591 
3592 	scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes;
3593 	bzero (scsi_cmd, sizeof(*scsi_cmd));
3594 
3595         scsi_cmd->op_code = PAUSE;
3596 	scsi_cmd->resume = go;
3597 
3598 	error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3599 			 /*sense_flags*/SF_RETRY_UA);
3600 
3601 	xpt_release_ccb(ccb);
3602 
3603 	return(error);
3604 }
3605 
3606 static int
3607 cdstartunit(struct cam_periph *periph, int load)
3608 {
3609 	union ccb *ccb;
3610 	int error;
3611 
3612 	error = 0;
3613 
3614 	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3615 
3616 	scsi_start_stop(&ccb->csio,
3617 			/* retries */ cd_retry_count,
3618 			/* cbfcnp */ NULL,
3619 			/* tag_action */ MSG_SIMPLE_Q_TAG,
3620 			/* start */ TRUE,
3621 			/* load_eject */ load,
3622 			/* immediate */ FALSE,
3623 			/* sense_len */ SSD_FULL_SIZE,
3624 			/* timeout */ 50000);
3625 
3626 	error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3627 			 /*sense_flags*/SF_RETRY_UA);
3628 
3629 	xpt_release_ccb(ccb);
3630 
3631 	return(error);
3632 }
3633 
3634 static int
3635 cdstopunit(struct cam_periph *periph, u_int32_t eject)
3636 {
3637 	union ccb *ccb;
3638 	int error;
3639 
3640 	error = 0;
3641 
3642 	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3643 
3644 	scsi_start_stop(&ccb->csio,
3645 			/* retries */ cd_retry_count,
3646 			/* cbfcnp */ NULL,
3647 			/* tag_action */ MSG_SIMPLE_Q_TAG,
3648 			/* start */ FALSE,
3649 			/* load_eject */ eject,
3650 			/* immediate */ FALSE,
3651 			/* sense_len */ SSD_FULL_SIZE,
3652 			/* timeout */ 50000);
3653 
3654 	error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3655 			 /*sense_flags*/SF_RETRY_UA);
3656 
3657 	xpt_release_ccb(ccb);
3658 
3659 	return(error);
3660 }
3661 
3662 static int
3663 cdsetspeed(struct cam_periph *periph, u_int32_t rdspeed, u_int32_t wrspeed)
3664 {
3665 	struct scsi_set_speed *scsi_cmd;
3666 	struct ccb_scsiio *csio;
3667 	union ccb *ccb;
3668 	int error;
3669 
3670 	error = 0;
3671 	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3672 	csio = &ccb->csio;
3673 
3674 	/* Preserve old behavior: units in multiples of CDROM speed */
3675 	if (rdspeed < 177)
3676 		rdspeed *= 177;
3677 	if (wrspeed < 177)
3678 		wrspeed *= 177;
3679 
3680 	cam_fill_csio(csio,
3681 		      /* retries */ cd_retry_count,
3682 		      /* cbfcnp */ NULL,
3683 		      /* flags */ CAM_DIR_NONE,
3684 		      /* tag_action */ MSG_SIMPLE_Q_TAG,
3685 		      /* data_ptr */ NULL,
3686 		      /* dxfer_len */ 0,
3687 		      /* sense_len */ SSD_FULL_SIZE,
3688 		      sizeof(struct scsi_set_speed),
3689 		      /* timeout */ 50000);
3690 
3691 	scsi_cmd = (struct scsi_set_speed *)&csio->cdb_io.cdb_bytes;
3692 	bzero(scsi_cmd, sizeof(*scsi_cmd));
3693 
3694 	scsi_cmd->opcode = SET_CD_SPEED;
3695 	scsi_ulto2b(rdspeed, scsi_cmd->readspeed);
3696 	scsi_ulto2b(wrspeed, scsi_cmd->writespeed);
3697 
3698 	error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3699 			 /*sense_flags*/SF_RETRY_UA);
3700 
3701 	xpt_release_ccb(ccb);
3702 
3703 	return(error);
3704 }
3705 
3706 static int
3707 cdreportkey(struct cam_periph *periph, struct dvd_authinfo *authinfo)
3708 {
3709 	union ccb *ccb;
3710 	u_int8_t *databuf;
3711 	u_int32_t lba;
3712 	int error;
3713 	int length;
3714 
3715 	error = 0;
3716 	databuf = NULL;
3717 	lba = 0;
3718 
3719 	switch (authinfo->format) {
3720 	case DVD_REPORT_AGID:
3721 		length = sizeof(struct scsi_report_key_data_agid);
3722 		break;
3723 	case DVD_REPORT_CHALLENGE:
3724 		length = sizeof(struct scsi_report_key_data_challenge);
3725 		break;
3726 	case DVD_REPORT_KEY1:
3727 		length = sizeof(struct scsi_report_key_data_key1_key2);
3728 		break;
3729 	case DVD_REPORT_TITLE_KEY:
3730 		length = sizeof(struct scsi_report_key_data_title);
3731 		/* The lba field is only set for the title key */
3732 		lba = authinfo->lba;
3733 		break;
3734 	case DVD_REPORT_ASF:
3735 		length = sizeof(struct scsi_report_key_data_asf);
3736 		break;
3737 	case DVD_REPORT_RPC:
3738 		length = sizeof(struct scsi_report_key_data_rpc);
3739 		break;
3740 	case DVD_INVALIDATE_AGID:
3741 		length = 0;
3742 		break;
3743 	default:
3744 		return (EINVAL);
3745 	}
3746 
3747 	if (length != 0) {
3748 		databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3749 	} else
3750 		databuf = NULL;
3751 
3752 	cam_periph_lock(periph);
3753 	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3754 
3755 	scsi_report_key(&ccb->csio,
3756 			/* retries */ cd_retry_count,
3757 			/* cbfcnp */ NULL,
3758 			/* tag_action */ MSG_SIMPLE_Q_TAG,
3759 			/* lba */ lba,
3760 			/* agid */ authinfo->agid,
3761 			/* key_format */ authinfo->format,
3762 			/* data_ptr */ databuf,
3763 			/* dxfer_len */ length,
3764 			/* sense_len */ SSD_FULL_SIZE,
3765 			/* timeout */ 50000);
3766 
3767 	error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3768 			 /*sense_flags*/SF_RETRY_UA);
3769 
3770 	if (error != 0)
3771 		goto bailout;
3772 
3773 	if (ccb->csio.resid != 0) {
3774 		xpt_print(periph->path, "warning, residual for report key "
3775 		    "command is %d\n", ccb->csio.resid);
3776 	}
3777 
3778 	switch(authinfo->format) {
3779 	case DVD_REPORT_AGID: {
3780 		struct scsi_report_key_data_agid *agid_data;
3781 
3782 		agid_data = (struct scsi_report_key_data_agid *)databuf;
3783 
3784 		authinfo->agid = (agid_data->agid & RKD_AGID_MASK) >>
3785 			RKD_AGID_SHIFT;
3786 		break;
3787 	}
3788 	case DVD_REPORT_CHALLENGE: {
3789 		struct scsi_report_key_data_challenge *chal_data;
3790 
3791 		chal_data = (struct scsi_report_key_data_challenge *)databuf;
3792 
3793 		bcopy(chal_data->challenge_key, authinfo->keychal,
3794 		      min(sizeof(chal_data->challenge_key),
3795 		          sizeof(authinfo->keychal)));
3796 		break;
3797 	}
3798 	case DVD_REPORT_KEY1: {
3799 		struct scsi_report_key_data_key1_key2 *key1_data;
3800 
3801 		key1_data = (struct scsi_report_key_data_key1_key2 *)databuf;
3802 
3803 		bcopy(key1_data->key1, authinfo->keychal,
3804 		      min(sizeof(key1_data->key1), sizeof(authinfo->keychal)));
3805 		break;
3806 	}
3807 	case DVD_REPORT_TITLE_KEY: {
3808 		struct scsi_report_key_data_title *title_data;
3809 
3810 		title_data = (struct scsi_report_key_data_title *)databuf;
3811 
3812 		authinfo->cpm = (title_data->byte0 & RKD_TITLE_CPM) >>
3813 			RKD_TITLE_CPM_SHIFT;
3814 		authinfo->cp_sec = (title_data->byte0 & RKD_TITLE_CP_SEC) >>
3815 			RKD_TITLE_CP_SEC_SHIFT;
3816 		authinfo->cgms = (title_data->byte0 & RKD_TITLE_CMGS_MASK) >>
3817 			RKD_TITLE_CMGS_SHIFT;
3818 		bcopy(title_data->title_key, authinfo->keychal,
3819 		      min(sizeof(title_data->title_key),
3820 			  sizeof(authinfo->keychal)));
3821 		break;
3822 	}
3823 	case DVD_REPORT_ASF: {
3824 		struct scsi_report_key_data_asf *asf_data;
3825 
3826 		asf_data = (struct scsi_report_key_data_asf *)databuf;
3827 
3828 		authinfo->asf = asf_data->success & RKD_ASF_SUCCESS;
3829 		break;
3830 	}
3831 	case DVD_REPORT_RPC: {
3832 		struct scsi_report_key_data_rpc *rpc_data;
3833 
3834 		rpc_data = (struct scsi_report_key_data_rpc *)databuf;
3835 
3836 		authinfo->reg_type = (rpc_data->byte4 & RKD_RPC_TYPE_MASK) >>
3837 			RKD_RPC_TYPE_SHIFT;
3838 		authinfo->vend_rsts =
3839 			(rpc_data->byte4 & RKD_RPC_VENDOR_RESET_MASK) >>
3840 			RKD_RPC_VENDOR_RESET_SHIFT;
3841 		authinfo->user_rsts = rpc_data->byte4 & RKD_RPC_USER_RESET_MASK;
3842 		authinfo->region = rpc_data->region_mask;
3843 		authinfo->rpc_scheme = rpc_data->rpc_scheme1;
3844 		break;
3845 	}
3846 	case DVD_INVALIDATE_AGID:
3847 		break;
3848 	default:
3849 		/* This should be impossible, since we checked above */
3850 		error = EINVAL;
3851 		goto bailout;
3852 		break; /* NOTREACHED */
3853 	}
3854 
3855 bailout:
3856 	xpt_release_ccb(ccb);
3857 	cam_periph_unlock(periph);
3858 
3859 	if (databuf != NULL)
3860 		free(databuf, M_DEVBUF);
3861 
3862 	return(error);
3863 }
3864 
3865 static int
3866 cdsendkey(struct cam_periph *periph, struct dvd_authinfo *authinfo)
3867 {
3868 	union ccb *ccb;
3869 	u_int8_t *databuf;
3870 	int length;
3871 	int error;
3872 
3873 	error = 0;
3874 	databuf = NULL;
3875 
3876 	switch(authinfo->format) {
3877 	case DVD_SEND_CHALLENGE: {
3878 		struct scsi_report_key_data_challenge *challenge_data;
3879 
3880 		length = sizeof(*challenge_data);
3881 
3882 		challenge_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3883 
3884 		databuf = (u_int8_t *)challenge_data;
3885 
3886 		scsi_ulto2b(length - sizeof(challenge_data->data_len),
3887 			    challenge_data->data_len);
3888 
3889 		bcopy(authinfo->keychal, challenge_data->challenge_key,
3890 		      min(sizeof(authinfo->keychal),
3891 			  sizeof(challenge_data->challenge_key)));
3892 		break;
3893 	}
3894 	case DVD_SEND_KEY2: {
3895 		struct scsi_report_key_data_key1_key2 *key2_data;
3896 
3897 		length = sizeof(*key2_data);
3898 
3899 		key2_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3900 
3901 		databuf = (u_int8_t *)key2_data;
3902 
3903 		scsi_ulto2b(length - sizeof(key2_data->data_len),
3904 			    key2_data->data_len);
3905 
3906 		bcopy(authinfo->keychal, key2_data->key1,
3907 		      min(sizeof(authinfo->keychal), sizeof(key2_data->key1)));
3908 
3909 		break;
3910 	}
3911 	case DVD_SEND_RPC: {
3912 		struct scsi_send_key_data_rpc *rpc_data;
3913 
3914 		length = sizeof(*rpc_data);
3915 
3916 		rpc_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3917 
3918 		databuf = (u_int8_t *)rpc_data;
3919 
3920 		scsi_ulto2b(length - sizeof(rpc_data->data_len),
3921 			    rpc_data->data_len);
3922 
3923 		rpc_data->region_code = authinfo->region;
3924 		break;
3925 	}
3926 	default:
3927 		return (EINVAL);
3928 	}
3929 
3930 	cam_periph_lock(periph);
3931 	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3932 
3933 	scsi_send_key(&ccb->csio,
3934 		      /* retries */ cd_retry_count,
3935 		      /* cbfcnp */ NULL,
3936 		      /* tag_action */ MSG_SIMPLE_Q_TAG,
3937 		      /* agid */ authinfo->agid,
3938 		      /* key_format */ authinfo->format,
3939 		      /* data_ptr */ databuf,
3940 		      /* dxfer_len */ length,
3941 		      /* sense_len */ SSD_FULL_SIZE,
3942 		      /* timeout */ 50000);
3943 
3944 	error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3945 			 /*sense_flags*/SF_RETRY_UA);
3946 
3947 	xpt_release_ccb(ccb);
3948 	cam_periph_unlock(periph);
3949 
3950 	if (databuf != NULL)
3951 		free(databuf, M_DEVBUF);
3952 
3953 	return(error);
3954 }
3955 
3956 static int
3957 cdreaddvdstructure(struct cam_periph *periph, struct dvd_struct *dvdstruct)
3958 {
3959 	union ccb *ccb;
3960 	u_int8_t *databuf;
3961 	u_int32_t address;
3962 	int error;
3963 	int length;
3964 
3965 	error = 0;
3966 	databuf = NULL;
3967 	/* The address is reserved for many of the formats */
3968 	address = 0;
3969 
3970 	switch(dvdstruct->format) {
3971 	case DVD_STRUCT_PHYSICAL:
3972 		length = sizeof(struct scsi_read_dvd_struct_data_physical);
3973 		break;
3974 	case DVD_STRUCT_COPYRIGHT:
3975 		length = sizeof(struct scsi_read_dvd_struct_data_copyright);
3976 		break;
3977 	case DVD_STRUCT_DISCKEY:
3978 		length = sizeof(struct scsi_read_dvd_struct_data_disc_key);
3979 		break;
3980 	case DVD_STRUCT_BCA:
3981 		length = sizeof(struct scsi_read_dvd_struct_data_bca);
3982 		break;
3983 	case DVD_STRUCT_MANUFACT:
3984 		length = sizeof(struct scsi_read_dvd_struct_data_manufacturer);
3985 		break;
3986 	case DVD_STRUCT_CMI:
3987 		return (ENODEV);
3988 	case DVD_STRUCT_PROTDISCID:
3989 		length = sizeof(struct scsi_read_dvd_struct_data_prot_discid);
3990 		break;
3991 	case DVD_STRUCT_DISCKEYBLOCK:
3992 		length = sizeof(struct scsi_read_dvd_struct_data_disc_key_blk);
3993 		break;
3994 	case DVD_STRUCT_DDS:
3995 		length = sizeof(struct scsi_read_dvd_struct_data_dds);
3996 		break;
3997 	case DVD_STRUCT_MEDIUM_STAT:
3998 		length = sizeof(struct scsi_read_dvd_struct_data_medium_status);
3999 		break;
4000 	case DVD_STRUCT_SPARE_AREA:
4001 		length = sizeof(struct scsi_read_dvd_struct_data_spare_area);
4002 		break;
4003 	case DVD_STRUCT_RMD_LAST:
4004 		return (ENODEV);
4005 	case DVD_STRUCT_RMD_RMA:
4006 		return (ENODEV);
4007 	case DVD_STRUCT_PRERECORDED:
4008 		length = sizeof(struct scsi_read_dvd_struct_data_leadin);
4009 		break;
4010 	case DVD_STRUCT_UNIQUEID:
4011 		length = sizeof(struct scsi_read_dvd_struct_data_disc_id);
4012 		break;
4013 	case DVD_STRUCT_DCB:
4014 		return (ENODEV);
4015 	case DVD_STRUCT_LIST:
4016 		/*
4017 		 * This is the maximum allocation length for the READ DVD
4018 		 * STRUCTURE command.  There's nothing in the MMC3 spec
4019 		 * that indicates a limit in the amount of data that can
4020 		 * be returned from this call, other than the limits
4021 		 * imposed by the 2-byte length variables.
4022 		 */
4023 		length = 65535;
4024 		break;
4025 	default:
4026 		return (EINVAL);
4027 	}
4028 
4029 	if (length != 0) {
4030 		databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
4031 	} else
4032 		databuf = NULL;
4033 
4034 	cam_periph_lock(periph);
4035 	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
4036 
4037 	scsi_read_dvd_structure(&ccb->csio,
4038 				/* retries */ cd_retry_count,
4039 				/* cbfcnp */ NULL,
4040 				/* tag_action */ MSG_SIMPLE_Q_TAG,
4041 				/* lba */ address,
4042 				/* layer_number */ dvdstruct->layer_num,
4043 				/* key_format */ dvdstruct->format,
4044 				/* agid */ dvdstruct->agid,
4045 				/* data_ptr */ databuf,
4046 				/* dxfer_len */ length,
4047 				/* sense_len */ SSD_FULL_SIZE,
4048 				/* timeout */ 50000);
4049 
4050 	error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
4051 			 /*sense_flags*/SF_RETRY_UA);
4052 
4053 	if (error != 0)
4054 		goto bailout;
4055 
4056 	switch(dvdstruct->format) {
4057 	case DVD_STRUCT_PHYSICAL: {
4058 		struct scsi_read_dvd_struct_data_layer_desc *inlayer;
4059 		struct dvd_layer *outlayer;
4060 		struct scsi_read_dvd_struct_data_physical *phys_data;
4061 
4062 		phys_data =
4063 			(struct scsi_read_dvd_struct_data_physical *)databuf;
4064 		inlayer = &phys_data->layer_desc;
4065 		outlayer = (struct dvd_layer *)&dvdstruct->data;
4066 
4067 		dvdstruct->length = sizeof(*inlayer);
4068 
4069 		outlayer->book_type = (inlayer->book_type_version &
4070 			RDSD_BOOK_TYPE_MASK) >> RDSD_BOOK_TYPE_SHIFT;
4071 		outlayer->book_version = (inlayer->book_type_version &
4072 			RDSD_BOOK_VERSION_MASK);
4073 		outlayer->disc_size = (inlayer->disc_size_max_rate &
4074 			RDSD_DISC_SIZE_MASK) >> RDSD_DISC_SIZE_SHIFT;
4075 		outlayer->max_rate = (inlayer->disc_size_max_rate &
4076 			RDSD_MAX_RATE_MASK);
4077 		outlayer->nlayers = (inlayer->layer_info &
4078 			RDSD_NUM_LAYERS_MASK) >> RDSD_NUM_LAYERS_SHIFT;
4079 		outlayer->track_path = (inlayer->layer_info &
4080 			RDSD_TRACK_PATH_MASK) >> RDSD_TRACK_PATH_SHIFT;
4081 		outlayer->layer_type = (inlayer->layer_info &
4082 			RDSD_LAYER_TYPE_MASK);
4083 		outlayer->linear_density = (inlayer->density &
4084 			RDSD_LIN_DENSITY_MASK) >> RDSD_LIN_DENSITY_SHIFT;
4085 		outlayer->track_density = (inlayer->density &
4086 			RDSD_TRACK_DENSITY_MASK);
4087 		outlayer->bca = (inlayer->bca & RDSD_BCA_MASK) >>
4088 			RDSD_BCA_SHIFT;
4089 		outlayer->start_sector = scsi_3btoul(inlayer->main_data_start);
4090 		outlayer->end_sector = scsi_3btoul(inlayer->main_data_end);
4091 		outlayer->end_sector_l0 =
4092 			scsi_3btoul(inlayer->end_sector_layer0);
4093 		break;
4094 	}
4095 	case DVD_STRUCT_COPYRIGHT: {
4096 		struct scsi_read_dvd_struct_data_copyright *copy_data;
4097 
4098 		copy_data = (struct scsi_read_dvd_struct_data_copyright *)
4099 			databuf;
4100 
4101 		dvdstruct->cpst = copy_data->cps_type;
4102 		dvdstruct->rmi = copy_data->region_info;
4103 		dvdstruct->length = 0;
4104 
4105 		break;
4106 	}
4107 	default:
4108 		/*
4109 		 * Tell the user what the overall length is, no matter
4110 		 * what we can actually fit in the data buffer.
4111 		 */
4112 		dvdstruct->length = length - ccb->csio.resid -
4113 			sizeof(struct scsi_read_dvd_struct_data_header);
4114 
4115 		/*
4116 		 * But only actually copy out the smaller of what we read
4117 		 * in or what the structure can take.
4118 		 */
4119 		bcopy(databuf + sizeof(struct scsi_read_dvd_struct_data_header),
4120 		      dvdstruct->data,
4121 		      min(sizeof(dvdstruct->data), dvdstruct->length));
4122 		break;
4123 	}
4124 
4125 bailout:
4126 	xpt_release_ccb(ccb);
4127 	cam_periph_unlock(periph);
4128 
4129 	if (databuf != NULL)
4130 		free(databuf, M_DEVBUF);
4131 
4132 	return(error);
4133 }
4134 
4135 void
4136 scsi_report_key(struct ccb_scsiio *csio, u_int32_t retries,
4137 		void (*cbfcnp)(struct cam_periph *, union ccb *),
4138 		u_int8_t tag_action, u_int32_t lba, u_int8_t agid,
4139 		u_int8_t key_format, u_int8_t *data_ptr, u_int32_t dxfer_len,
4140 		u_int8_t sense_len, u_int32_t timeout)
4141 {
4142 	struct scsi_report_key *scsi_cmd;
4143 
4144 	scsi_cmd = (struct scsi_report_key *)&csio->cdb_io.cdb_bytes;
4145 	bzero(scsi_cmd, sizeof(*scsi_cmd));
4146 	scsi_cmd->opcode = REPORT_KEY;
4147 	scsi_ulto4b(lba, scsi_cmd->lba);
4148 	scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len);
4149 	scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) |
4150 		(key_format & RK_KF_KEYFORMAT_MASK);
4151 
4152 	cam_fill_csio(csio,
4153 		      retries,
4154 		      cbfcnp,
4155 		      /*flags*/ (dxfer_len == 0) ? CAM_DIR_NONE : CAM_DIR_IN,
4156 		      tag_action,
4157 		      /*data_ptr*/ data_ptr,
4158 		      /*dxfer_len*/ dxfer_len,
4159 		      sense_len,
4160 		      sizeof(*scsi_cmd),
4161 		      timeout);
4162 }
4163 
4164 void
4165 scsi_send_key(struct ccb_scsiio *csio, u_int32_t retries,
4166 	      void (*cbfcnp)(struct cam_periph *, union ccb *),
4167 	      u_int8_t tag_action, u_int8_t agid, u_int8_t key_format,
4168 	      u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
4169 	      u_int32_t timeout)
4170 {
4171 	struct scsi_send_key *scsi_cmd;
4172 
4173 	scsi_cmd = (struct scsi_send_key *)&csio->cdb_io.cdb_bytes;
4174 	bzero(scsi_cmd, sizeof(*scsi_cmd));
4175 	scsi_cmd->opcode = SEND_KEY;
4176 
4177 	scsi_ulto2b(dxfer_len, scsi_cmd->param_len);
4178 	scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) |
4179 		(key_format & RK_KF_KEYFORMAT_MASK);
4180 
4181 	cam_fill_csio(csio,
4182 		      retries,
4183 		      cbfcnp,
4184 		      /*flags*/ CAM_DIR_OUT,
4185 		      tag_action,
4186 		      /*data_ptr*/ data_ptr,
4187 		      /*dxfer_len*/ dxfer_len,
4188 		      sense_len,
4189 		      sizeof(*scsi_cmd),
4190 		      timeout);
4191 }
4192 
4193 void
4194 scsi_read_dvd_structure(struct ccb_scsiio *csio, u_int32_t retries,
4195 			void (*cbfcnp)(struct cam_periph *, union ccb *),
4196 			u_int8_t tag_action, u_int32_t address,
4197 			u_int8_t layer_number, u_int8_t format, u_int8_t agid,
4198 			u_int8_t *data_ptr, u_int32_t dxfer_len,
4199 			u_int8_t sense_len, u_int32_t timeout)
4200 {
4201 	struct scsi_read_dvd_structure *scsi_cmd;
4202 
4203 	scsi_cmd = (struct scsi_read_dvd_structure *)&csio->cdb_io.cdb_bytes;
4204 	bzero(scsi_cmd, sizeof(*scsi_cmd));
4205 	scsi_cmd->opcode = READ_DVD_STRUCTURE;
4206 
4207 	scsi_ulto4b(address, scsi_cmd->address);
4208 	scsi_cmd->layer_number = layer_number;
4209 	scsi_cmd->format = format;
4210 	scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len);
4211 	/* The AGID is the top two bits of this byte */
4212 	scsi_cmd->agid = agid << 6;
4213 
4214 	cam_fill_csio(csio,
4215 		      retries,
4216 		      cbfcnp,
4217 		      /*flags*/ CAM_DIR_IN,
4218 		      tag_action,
4219 		      /*data_ptr*/ data_ptr,
4220 		      /*dxfer_len*/ dxfer_len,
4221 		      sense_len,
4222 		      sizeof(*scsi_cmd),
4223 		      timeout);
4224 }
4225 
4226 void
4227 scsi_read_toc(struct ccb_scsiio *csio, uint32_t retries,
4228 	      void (*cbfcnp)(struct cam_periph *, union ccb *),
4229 	      uint8_t tag_action, uint8_t byte1_flags, uint8_t format,
4230 	      uint8_t track, uint8_t *data_ptr, uint32_t dxfer_len,
4231 	      int sense_len, int timeout)
4232 {
4233 	struct scsi_read_toc *scsi_cmd;
4234 
4235 	scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes;
4236 	bzero(scsi_cmd, sizeof(*scsi_cmd));
4237 	scsi_cmd->op_code = READ_TOC;
4238 
4239 	/*
4240 	 * The structure is counting from 1, the function counting from 0.
4241 	 * The spec counts from 0.  In MMC-6, there is only one flag, the
4242 	 * MSF flag.  But we put the whole byte in for a bit a future-proofing.
4243 	 */
4244 	scsi_cmd->byte2 = byte1_flags;
4245 	scsi_cmd->format = format;
4246 	scsi_cmd->from_track = track;
4247 	scsi_ulto2b(dxfer_len, scsi_cmd->data_len);
4248 
4249 	cam_fill_csio(csio,
4250 		      /* retries */ retries,
4251 		      /* cbfcnp */ cbfcnp,
4252 		      /* flags */ CAM_DIR_IN,
4253 		      /* tag_action */ tag_action,
4254 		      /* data_ptr */ data_ptr,
4255 		      /* dxfer_len */ dxfer_len,
4256 		      /* sense_len */ sense_len,
4257 		      sizeof(*scsi_cmd),
4258 		      /* timeout */ timeout);
4259 }
4260