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